This driver supports the on-chip 1/10Gbit Ethernet controller on
PA Semi's PWRficient line of chips.
-config MLX4_EN
- tristate "Mellanox Technologies 10Gbit Ethernet support"
- depends on PCI && INET
- select MLX4_CORE
- select INET_LRO
- help
- This driver supports Mellanox Technologies ConnectX Ethernet
- devices.
-
-config MLX4_CORE
- tristate
- depends on PCI
- default n
-
-config MLX4_DEBUG
- bool "Verbose debugging output" if (MLX4_CORE && EXPERT)
- depends on MLX4_CORE
- default y
- ---help---
- This option causes debugging code to be compiled into the
- mlx4_core driver. The output can be turned on via the
- debug_level module parameter (which can also be set after
- the driver is loaded through sysfs).
-
config TEHUTI
tristate "Tehuti Networks 10G Ethernet"
depends on PCI
obj-$(CONFIG_DM9000) += dm9000.o
obj-$(CONFIG_PASEMI_MAC) += pasemi_mac_driver.o
pasemi_mac_driver-objs := pasemi_mac.o pasemi_mac_ethtool.o
-obj-$(CONFIG_MLX4_CORE) += mlx4/
obj-$(CONFIG_ENC28J60) += enc28j60.o
obj-$(CONFIG_ETHOC) += ethoc.o
obj-$(CONFIG_GRETH) += greth.o
source "drivers/net/ethernet/emulex/Kconfig"
source "drivers/net/ethernet/intel/Kconfig"
source "drivers/net/ethernet/i825xx/Kconfig"
+source "drivers/net/ethernet/mellanox/Kconfig"
source "drivers/net/ethernet/qlogic/Kconfig"
source "drivers/net/ethernet/racal/Kconfig"
source "drivers/net/ethernet/sfc/Kconfig"
obj-$(CONFIG_NET_VENDOR_EMULEX) += emulex/
obj-$(CONFIG_NET_VENDOR_INTEL) += intel/
obj-$(CONFIG_NET_VENDOR_I825XX) += i825xx/
+obj-$(CONFIG_NET_VENDOR_MELLANOX) += mellanox/
obj-$(CONFIG_NET_VENDOR_QLOGIC) += qlogic/
obj-$(CONFIG_NET_VENDOR_RACAL) += racal/
obj-$(CONFIG_SFC) += sfc/
--- /dev/null
+#
+# Mellanox driver configuration
+#
+
+config NET_VENDOR_MELLANOX
+ bool "Mellanox devices"
+ depends on PCI && INET
+ ---help---
+ If you have a network (Ethernet) card belonging to this class, say Y
+ and read the Ethernet-HOWTO, available from
+ <http://www.tldp.org/docs.html#howto>.
+
+ Note that the answer to this question doesn't directly affect the
+ kernel: saying N will just cause the configurator to skip all
+ the questions about Mellanox cards. If you say Y, you will be asked
+ for your specific card in the following questions.
+
+if NET_VENDOR_MELLANOX
+
+source "drivers/net/ethernet/mellanox/mlx4/Kconfig"
+
+endif # NET_VENDOR_MELLANOX
--- /dev/null
+#
+# Makefile for the Mellanox device drivers.
+#
+
+obj-$(CONFIG_MLX4_CORE) += mlx4/
--- /dev/null
+#
+# Mellanox driver configuration
+#
+
+config MLX4_EN
+ tristate "Mellanox Technologies 10Gbit Ethernet support"
+ depends on PCI && INET
+ select MLX4_CORE
+ select INET_LRO
+ ---help---
+ This driver supports Mellanox Technologies ConnectX Ethernet
+ devices.
+
+config MLX4_CORE
+ tristate
+ depends on PCI
+ default n
+
+config MLX4_DEBUG
+ bool "Verbose debugging output" if (MLX4_CORE && EXPERT)
+ depends on MLX4_CORE
+ default y
+ ---help---
+ This option causes debugging code to be compiled into the
+ mlx4_core driver. The output can be turned on via the
+ debug_level module parameter (which can also be set after
+ the driver is loaded through sysfs).
--- /dev/null
+obj-$(CONFIG_MLX4_CORE) += mlx4_core.o
+
+mlx4_core-y := alloc.o catas.o cmd.o cq.o eq.o fw.o icm.o intf.o main.o mcg.o \
+ mr.o pd.o port.o profile.o qp.o reset.o sense.o srq.o
+
+obj-$(CONFIG_MLX4_EN) += mlx4_en.o
+
+mlx4_en-y := en_main.o en_tx.o en_rx.o en_ethtool.o en_port.o en_cq.o \
+ en_resources.o en_netdev.o en_selftest.o
--- /dev/null
+/*
+ * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
+ * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/mm.h>
+#include <linux/bitmap.h>
+#include <linux/dma-mapping.h>
+#include <linux/vmalloc.h>
+
+#include "mlx4.h"
+
+u32 mlx4_bitmap_alloc(struct mlx4_bitmap *bitmap)
+{
+ u32 obj;
+
+ spin_lock(&bitmap->lock);
+
+ obj = find_next_zero_bit(bitmap->table, bitmap->max, bitmap->last);
+ if (obj >= bitmap->max) {
+ bitmap->top = (bitmap->top + bitmap->max + bitmap->reserved_top)
+ & bitmap->mask;
+ obj = find_first_zero_bit(bitmap->table, bitmap->max);
+ }
+
+ if (obj < bitmap->max) {
+ set_bit(obj, bitmap->table);
+ bitmap->last = (obj + 1);
+ if (bitmap->last == bitmap->max)
+ bitmap->last = 0;
+ obj |= bitmap->top;
+ } else
+ obj = -1;
+
+ if (obj != -1)
+ --bitmap->avail;
+
+ spin_unlock(&bitmap->lock);
+
+ return obj;
+}
+
+void mlx4_bitmap_free(struct mlx4_bitmap *bitmap, u32 obj)
+{
+ mlx4_bitmap_free_range(bitmap, obj, 1);
+}
+
+u32 mlx4_bitmap_alloc_range(struct mlx4_bitmap *bitmap, int cnt, int align)
+{
+ u32 obj;
+
+ if (likely(cnt == 1 && align == 1))
+ return mlx4_bitmap_alloc(bitmap);
+
+ spin_lock(&bitmap->lock);
+
+ obj = bitmap_find_next_zero_area(bitmap->table, bitmap->max,
+ bitmap->last, cnt, align - 1);
+ if (obj >= bitmap->max) {
+ bitmap->top = (bitmap->top + bitmap->max + bitmap->reserved_top)
+ & bitmap->mask;
+ obj = bitmap_find_next_zero_area(bitmap->table, bitmap->max,
+ 0, cnt, align - 1);
+ }
+
+ if (obj < bitmap->max) {
+ bitmap_set(bitmap->table, obj, cnt);
+ if (obj == bitmap->last) {
+ bitmap->last = (obj + cnt);
+ if (bitmap->last >= bitmap->max)
+ bitmap->last = 0;
+ }
+ obj |= bitmap->top;
+ } else
+ obj = -1;
+
+ if (obj != -1)
+ bitmap->avail -= cnt;
+
+ spin_unlock(&bitmap->lock);
+
+ return obj;
+}
+
+u32 mlx4_bitmap_avail(struct mlx4_bitmap *bitmap)
+{
+ return bitmap->avail;
+}
+
+void mlx4_bitmap_free_range(struct mlx4_bitmap *bitmap, u32 obj, int cnt)
+{
+ obj &= bitmap->max + bitmap->reserved_top - 1;
+
+ spin_lock(&bitmap->lock);
+ bitmap_clear(bitmap->table, obj, cnt);
+ bitmap->last = min(bitmap->last, obj);
+ bitmap->top = (bitmap->top + bitmap->max + bitmap->reserved_top)
+ & bitmap->mask;
+ bitmap->avail += cnt;
+ spin_unlock(&bitmap->lock);
+}
+
+int mlx4_bitmap_init(struct mlx4_bitmap *bitmap, u32 num, u32 mask,
+ u32 reserved_bot, u32 reserved_top)
+{
+ /* num must be a power of 2 */
+ if (num != roundup_pow_of_two(num))
+ return -EINVAL;
+
+ bitmap->last = 0;
+ bitmap->top = 0;
+ bitmap->max = num - reserved_top;
+ bitmap->mask = mask;
+ bitmap->reserved_top = reserved_top;
+ bitmap->avail = num - reserved_top - reserved_bot;
+ spin_lock_init(&bitmap->lock);
+ bitmap->table = kzalloc(BITS_TO_LONGS(bitmap->max) *
+ sizeof (long), GFP_KERNEL);
+ if (!bitmap->table)
+ return -ENOMEM;
+
+ bitmap_set(bitmap->table, 0, reserved_bot);
+
+ return 0;
+}
+
+void mlx4_bitmap_cleanup(struct mlx4_bitmap *bitmap)
+{
+ kfree(bitmap->table);
+}
+
+/*
+ * Handling for queue buffers -- we allocate a bunch of memory and
+ * register it in a memory region at HCA virtual address 0. If the
+ * requested size is > max_direct, we split the allocation into
+ * multiple pages, so we don't require too much contiguous memory.
+ */
+
+int mlx4_buf_alloc(struct mlx4_dev *dev, int size, int max_direct,
+ struct mlx4_buf *buf)
+{
+ dma_addr_t t;
+
+ if (size <= max_direct) {
+ buf->nbufs = 1;
+ buf->npages = 1;
+ buf->page_shift = get_order(size) + PAGE_SHIFT;
+ buf->direct.buf = dma_alloc_coherent(&dev->pdev->dev,
+ size, &t, GFP_KERNEL);
+ if (!buf->direct.buf)
+ return -ENOMEM;
+
+ buf->direct.map = t;
+
+ while (t & ((1 << buf->page_shift) - 1)) {
+ --buf->page_shift;
+ buf->npages *= 2;
+ }
+
+ memset(buf->direct.buf, 0, size);
+ } else {
+ int i;
+
+ buf->direct.buf = NULL;
+ buf->nbufs = (size + PAGE_SIZE - 1) / PAGE_SIZE;
+ buf->npages = buf->nbufs;
+ buf->page_shift = PAGE_SHIFT;
+ buf->page_list = kcalloc(buf->nbufs, sizeof(*buf->page_list),
+ GFP_KERNEL);
+ if (!buf->page_list)
+ return -ENOMEM;
+
+ for (i = 0; i < buf->nbufs; ++i) {
+ buf->page_list[i].buf =
+ dma_alloc_coherent(&dev->pdev->dev, PAGE_SIZE,
+ &t, GFP_KERNEL);
+ if (!buf->page_list[i].buf)
+ goto err_free;
+
+ buf->page_list[i].map = t;
+
+ memset(buf->page_list[i].buf, 0, PAGE_SIZE);
+ }
+
+ if (BITS_PER_LONG == 64) {
+ struct page **pages;
+ pages = kmalloc(sizeof *pages * buf->nbufs, GFP_KERNEL);
+ if (!pages)
+ goto err_free;
+ for (i = 0; i < buf->nbufs; ++i)
+ pages[i] = virt_to_page(buf->page_list[i].buf);
+ buf->direct.buf = vmap(pages, buf->nbufs, VM_MAP, PAGE_KERNEL);
+ kfree(pages);
+ if (!buf->direct.buf)
+ goto err_free;
+ }
+ }
+
+ return 0;
+
+err_free:
+ mlx4_buf_free(dev, size, buf);
+
+ return -ENOMEM;
+}
+EXPORT_SYMBOL_GPL(mlx4_buf_alloc);
+
+void mlx4_buf_free(struct mlx4_dev *dev, int size, struct mlx4_buf *buf)
+{
+ int i;
+
+ if (buf->nbufs == 1)
+ dma_free_coherent(&dev->pdev->dev, size, buf->direct.buf,
+ buf->direct.map);
+ else {
+ if (BITS_PER_LONG == 64 && buf->direct.buf)
+ vunmap(buf->direct.buf);
+
+ for (i = 0; i < buf->nbufs; ++i)
+ if (buf->page_list[i].buf)
+ dma_free_coherent(&dev->pdev->dev, PAGE_SIZE,
+ buf->page_list[i].buf,
+ buf->page_list[i].map);
+ kfree(buf->page_list);
+ }
+}
+EXPORT_SYMBOL_GPL(mlx4_buf_free);
+
+static struct mlx4_db_pgdir *mlx4_alloc_db_pgdir(struct device *dma_device)
+{
+ struct mlx4_db_pgdir *pgdir;
+
+ pgdir = kzalloc(sizeof *pgdir, GFP_KERNEL);
+ if (!pgdir)
+ return NULL;
+
+ bitmap_fill(pgdir->order1, MLX4_DB_PER_PAGE / 2);
+ pgdir->bits[0] = pgdir->order0;
+ pgdir->bits[1] = pgdir->order1;
+ pgdir->db_page = dma_alloc_coherent(dma_device, PAGE_SIZE,
+ &pgdir->db_dma, GFP_KERNEL);
+ if (!pgdir->db_page) {
+ kfree(pgdir);
+ return NULL;
+ }
+
+ return pgdir;
+}
+
+static int mlx4_alloc_db_from_pgdir(struct mlx4_db_pgdir *pgdir,
+ struct mlx4_db *db, int order)
+{
+ int o;
+ int i;
+
+ for (o = order; o <= 1; ++o) {
+ i = find_first_bit(pgdir->bits[o], MLX4_DB_PER_PAGE >> o);
+ if (i < MLX4_DB_PER_PAGE >> o)
+ goto found;
+ }
+
+ return -ENOMEM;
+
+found:
+ clear_bit(i, pgdir->bits[o]);
+
+ i <<= o;
+
+ if (o > order)
+ set_bit(i ^ 1, pgdir->bits[order]);
+
+ db->u.pgdir = pgdir;
+ db->index = i;
+ db->db = pgdir->db_page + db->index;
+ db->dma = pgdir->db_dma + db->index * 4;
+ db->order = order;
+
+ return 0;
+}
+
+int mlx4_db_alloc(struct mlx4_dev *dev, struct mlx4_db *db, int order)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ struct mlx4_db_pgdir *pgdir;
+ int ret = 0;
+
+ mutex_lock(&priv->pgdir_mutex);
+
+ list_for_each_entry(pgdir, &priv->pgdir_list, list)
+ if (!mlx4_alloc_db_from_pgdir(pgdir, db, order))
+ goto out;
+
+ pgdir = mlx4_alloc_db_pgdir(&(dev->pdev->dev));
+ if (!pgdir) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ list_add(&pgdir->list, &priv->pgdir_list);
+
+ /* This should never fail -- we just allocated an empty page: */
+ WARN_ON(mlx4_alloc_db_from_pgdir(pgdir, db, order));
+
+out:
+ mutex_unlock(&priv->pgdir_mutex);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(mlx4_db_alloc);
+
+void mlx4_db_free(struct mlx4_dev *dev, struct mlx4_db *db)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ int o;
+ int i;
+
+ mutex_lock(&priv->pgdir_mutex);
+
+ o = db->order;
+ i = db->index;
+
+ if (db->order == 0 && test_bit(i ^ 1, db->u.pgdir->order0)) {
+ clear_bit(i ^ 1, db->u.pgdir->order0);
+ ++o;
+ }
+ i >>= o;
+ set_bit(i, db->u.pgdir->bits[o]);
+
+ if (bitmap_full(db->u.pgdir->order1, MLX4_DB_PER_PAGE / 2)) {
+ dma_free_coherent(&(dev->pdev->dev), PAGE_SIZE,
+ db->u.pgdir->db_page, db->u.pgdir->db_dma);
+ list_del(&db->u.pgdir->list);
+ kfree(db->u.pgdir);
+ }
+
+ mutex_unlock(&priv->pgdir_mutex);
+}
+EXPORT_SYMBOL_GPL(mlx4_db_free);
+
+int mlx4_alloc_hwq_res(struct mlx4_dev *dev, struct mlx4_hwq_resources *wqres,
+ int size, int max_direct)
+{
+ int err;
+
+ err = mlx4_db_alloc(dev, &wqres->db, 1);
+ if (err)
+ return err;
+
+ *wqres->db.db = 0;
+
+ err = mlx4_buf_alloc(dev, size, max_direct, &wqres->buf);
+ if (err)
+ goto err_db;
+
+ err = mlx4_mtt_init(dev, wqres->buf.npages, wqres->buf.page_shift,
+ &wqres->mtt);
+ if (err)
+ goto err_buf;
+
+ err = mlx4_buf_write_mtt(dev, &wqres->mtt, &wqres->buf);
+ if (err)
+ goto err_mtt;
+
+ return 0;
+
+err_mtt:
+ mlx4_mtt_cleanup(dev, &wqres->mtt);
+err_buf:
+ mlx4_buf_free(dev, size, &wqres->buf);
+err_db:
+ mlx4_db_free(dev, &wqres->db);
+
+ return err;
+}
+EXPORT_SYMBOL_GPL(mlx4_alloc_hwq_res);
+
+void mlx4_free_hwq_res(struct mlx4_dev *dev, struct mlx4_hwq_resources *wqres,
+ int size)
+{
+ mlx4_mtt_cleanup(dev, &wqres->mtt);
+ mlx4_buf_free(dev, size, &wqres->buf);
+ mlx4_db_free(dev, &wqres->db);
+}
+EXPORT_SYMBOL_GPL(mlx4_free_hwq_res);
--- /dev/null
+/*
+ * Copyright (c) 2007 Cisco Systems, Inc. All rights reserved.
+ * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/workqueue.h>
+
+#include "mlx4.h"
+
+enum {
+ MLX4_CATAS_POLL_INTERVAL = 5 * HZ,
+};
+
+static DEFINE_SPINLOCK(catas_lock);
+
+static LIST_HEAD(catas_list);
+static struct work_struct catas_work;
+
+static int internal_err_reset = 1;
+module_param(internal_err_reset, int, 0644);
+MODULE_PARM_DESC(internal_err_reset,
+ "Reset device on internal errors if non-zero (default 1)");
+
+static void dump_err_buf(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+
+ int i;
+
+ mlx4_err(dev, "Internal error detected:\n");
+ for (i = 0; i < priv->fw.catas_size; ++i)
+ mlx4_err(dev, " buf[%02x]: %08x\n",
+ i, swab32(readl(priv->catas_err.map + i)));
+}
+
+static void poll_catas(unsigned long dev_ptr)
+{
+ struct mlx4_dev *dev = (struct mlx4_dev *) dev_ptr;
+ struct mlx4_priv *priv = mlx4_priv(dev);
+
+ if (readl(priv->catas_err.map)) {
+ dump_err_buf(dev);
+
+ mlx4_dispatch_event(dev, MLX4_DEV_EVENT_CATASTROPHIC_ERROR, 0);
+
+ if (internal_err_reset) {
+ spin_lock(&catas_lock);
+ list_add(&priv->catas_err.list, &catas_list);
+ spin_unlock(&catas_lock);
+
+ queue_work(mlx4_wq, &catas_work);
+ }
+ } else
+ mod_timer(&priv->catas_err.timer,
+ round_jiffies(jiffies + MLX4_CATAS_POLL_INTERVAL));
+}
+
+static void catas_reset(struct work_struct *work)
+{
+ struct mlx4_priv *priv, *tmppriv;
+ struct mlx4_dev *dev;
+
+ LIST_HEAD(tlist);
+ int ret;
+
+ spin_lock_irq(&catas_lock);
+ list_splice_init(&catas_list, &tlist);
+ spin_unlock_irq(&catas_lock);
+
+ list_for_each_entry_safe(priv, tmppriv, &tlist, catas_err.list) {
+ struct pci_dev *pdev = priv->dev.pdev;
+
+ ret = mlx4_restart_one(priv->dev.pdev);
+ /* 'priv' now is not valid */
+ if (ret)
+ pr_err("mlx4 %s: Reset failed (%d)\n",
+ pci_name(pdev), ret);
+ else {
+ dev = pci_get_drvdata(pdev);
+ mlx4_dbg(dev, "Reset succeeded\n");
+ }
+ }
+}
+
+void mlx4_start_catas_poll(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ phys_addr_t addr;
+
+ INIT_LIST_HEAD(&priv->catas_err.list);
+ init_timer(&priv->catas_err.timer);
+ priv->catas_err.map = NULL;
+
+ addr = pci_resource_start(dev->pdev, priv->fw.catas_bar) +
+ priv->fw.catas_offset;
+
+ priv->catas_err.map = ioremap(addr, priv->fw.catas_size * 4);
+ if (!priv->catas_err.map) {
+ mlx4_warn(dev, "Failed to map internal error buffer at 0x%llx\n",
+ (unsigned long long) addr);
+ return;
+ }
+
+ priv->catas_err.timer.data = (unsigned long) dev;
+ priv->catas_err.timer.function = poll_catas;
+ priv->catas_err.timer.expires =
+ round_jiffies(jiffies + MLX4_CATAS_POLL_INTERVAL);
+ add_timer(&priv->catas_err.timer);
+}
+
+void mlx4_stop_catas_poll(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+
+ del_timer_sync(&priv->catas_err.timer);
+
+ if (priv->catas_err.map)
+ iounmap(priv->catas_err.map);
+
+ spin_lock_irq(&catas_lock);
+ list_del(&priv->catas_err.list);
+ spin_unlock_irq(&catas_lock);
+}
+
+void __init mlx4_catas_init(void)
+{
+ INIT_WORK(&catas_work, catas_reset);
+}
--- /dev/null
+/*
+ * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
+ * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2005, 2006, 2007 Cisco Systems, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/pci.h>
+#include <linux/errno.h>
+
+#include <linux/mlx4/cmd.h>
+
+#include <asm/io.h>
+
+#include "mlx4.h"
+
+#define CMD_POLL_TOKEN 0xffff
+
+enum {
+ /* command completed successfully: */
+ CMD_STAT_OK = 0x00,
+ /* Internal error (such as a bus error) occurred while processing command: */
+ CMD_STAT_INTERNAL_ERR = 0x01,
+ /* Operation/command not supported or opcode modifier not supported: */
+ CMD_STAT_BAD_OP = 0x02,
+ /* Parameter not supported or parameter out of range: */
+ CMD_STAT_BAD_PARAM = 0x03,
+ /* System not enabled or bad system state: */
+ CMD_STAT_BAD_SYS_STATE = 0x04,
+ /* Attempt to access reserved or unallocaterd resource: */
+ CMD_STAT_BAD_RESOURCE = 0x05,
+ /* Requested resource is currently executing a command, or is otherwise busy: */
+ CMD_STAT_RESOURCE_BUSY = 0x06,
+ /* Required capability exceeds device limits: */
+ CMD_STAT_EXCEED_LIM = 0x08,
+ /* Resource is not in the appropriate state or ownership: */
+ CMD_STAT_BAD_RES_STATE = 0x09,
+ /* Index out of range: */
+ CMD_STAT_BAD_INDEX = 0x0a,
+ /* FW image corrupted: */
+ CMD_STAT_BAD_NVMEM = 0x0b,
+ /* Error in ICM mapping (e.g. not enough auxiliary ICM pages to execute command): */
+ CMD_STAT_ICM_ERROR = 0x0c,
+ /* Attempt to modify a QP/EE which is not in the presumed state: */
+ CMD_STAT_BAD_QP_STATE = 0x10,
+ /* Bad segment parameters (Address/Size): */
+ CMD_STAT_BAD_SEG_PARAM = 0x20,
+ /* Memory Region has Memory Windows bound to: */
+ CMD_STAT_REG_BOUND = 0x21,
+ /* HCA local attached memory not present: */
+ CMD_STAT_LAM_NOT_PRE = 0x22,
+ /* Bad management packet (silently discarded): */
+ CMD_STAT_BAD_PKT = 0x30,
+ /* More outstanding CQEs in CQ than new CQ size: */
+ CMD_STAT_BAD_SIZE = 0x40,
+ /* Multi Function device support required: */
+ CMD_STAT_MULTI_FUNC_REQ = 0x50,
+};
+
+enum {
+ HCR_IN_PARAM_OFFSET = 0x00,
+ HCR_IN_MODIFIER_OFFSET = 0x08,
+ HCR_OUT_PARAM_OFFSET = 0x0c,
+ HCR_TOKEN_OFFSET = 0x14,
+ HCR_STATUS_OFFSET = 0x18,
+
+ HCR_OPMOD_SHIFT = 12,
+ HCR_T_BIT = 21,
+ HCR_E_BIT = 22,
+ HCR_GO_BIT = 23
+};
+
+enum {
+ GO_BIT_TIMEOUT_MSECS = 10000
+};
+
+struct mlx4_cmd_context {
+ struct completion done;
+ int result;
+ int next;
+ u64 out_param;
+ u16 token;
+};
+
+static int mlx4_status_to_errno(u8 status)
+{
+ static const int trans_table[] = {
+ [CMD_STAT_INTERNAL_ERR] = -EIO,
+ [CMD_STAT_BAD_OP] = -EPERM,
+ [CMD_STAT_BAD_PARAM] = -EINVAL,
+ [CMD_STAT_BAD_SYS_STATE] = -ENXIO,
+ [CMD_STAT_BAD_RESOURCE] = -EBADF,
+ [CMD_STAT_RESOURCE_BUSY] = -EBUSY,
+ [CMD_STAT_EXCEED_LIM] = -ENOMEM,
+ [CMD_STAT_BAD_RES_STATE] = -EBADF,
+ [CMD_STAT_BAD_INDEX] = -EBADF,
+ [CMD_STAT_BAD_NVMEM] = -EFAULT,
+ [CMD_STAT_ICM_ERROR] = -ENFILE,
+ [CMD_STAT_BAD_QP_STATE] = -EINVAL,
+ [CMD_STAT_BAD_SEG_PARAM] = -EFAULT,
+ [CMD_STAT_REG_BOUND] = -EBUSY,
+ [CMD_STAT_LAM_NOT_PRE] = -EAGAIN,
+ [CMD_STAT_BAD_PKT] = -EINVAL,
+ [CMD_STAT_BAD_SIZE] = -ENOMEM,
+ [CMD_STAT_MULTI_FUNC_REQ] = -EACCES,
+ };
+
+ if (status >= ARRAY_SIZE(trans_table) ||
+ (status != CMD_STAT_OK && trans_table[status] == 0))
+ return -EIO;
+
+ return trans_table[status];
+}
+
+static int cmd_pending(struct mlx4_dev *dev)
+{
+ u32 status = readl(mlx4_priv(dev)->cmd.hcr + HCR_STATUS_OFFSET);
+
+ return (status & swab32(1 << HCR_GO_BIT)) ||
+ (mlx4_priv(dev)->cmd.toggle ==
+ !!(status & swab32(1 << HCR_T_BIT)));
+}
+
+static int mlx4_cmd_post(struct mlx4_dev *dev, u64 in_param, u64 out_param,
+ u32 in_modifier, u8 op_modifier, u16 op, u16 token,
+ int event)
+{
+ struct mlx4_cmd *cmd = &mlx4_priv(dev)->cmd;
+ u32 __iomem *hcr = cmd->hcr;
+ int ret = -EAGAIN;
+ unsigned long end;
+
+ mutex_lock(&cmd->hcr_mutex);
+
+ end = jiffies;
+ if (event)
+ end += msecs_to_jiffies(GO_BIT_TIMEOUT_MSECS);
+
+ while (cmd_pending(dev)) {
+ if (time_after_eq(jiffies, end))
+ goto out;
+ cond_resched();
+ }
+
+ /*
+ * We use writel (instead of something like memcpy_toio)
+ * because writes of less than 32 bits to the HCR don't work
+ * (and some architectures such as ia64 implement memcpy_toio
+ * in terms of writeb).
+ */
+ __raw_writel((__force u32) cpu_to_be32(in_param >> 32), hcr + 0);
+ __raw_writel((__force u32) cpu_to_be32(in_param & 0xfffffffful), hcr + 1);
+ __raw_writel((__force u32) cpu_to_be32(in_modifier), hcr + 2);
+ __raw_writel((__force u32) cpu_to_be32(out_param >> 32), hcr + 3);
+ __raw_writel((__force u32) cpu_to_be32(out_param & 0xfffffffful), hcr + 4);
+ __raw_writel((__force u32) cpu_to_be32(token << 16), hcr + 5);
+
+ /* __raw_writel may not order writes. */
+ wmb();
+
+ __raw_writel((__force u32) cpu_to_be32((1 << HCR_GO_BIT) |
+ (cmd->toggle << HCR_T_BIT) |
+ (event ? (1 << HCR_E_BIT) : 0) |
+ (op_modifier << HCR_OPMOD_SHIFT) |
+ op), hcr + 6);
+
+ /*
+ * Make sure that our HCR writes don't get mixed in with
+ * writes from another CPU starting a FW command.
+ */
+ mmiowb();
+
+ cmd->toggle = cmd->toggle ^ 1;
+
+ ret = 0;
+
+out:
+ mutex_unlock(&cmd->hcr_mutex);
+ return ret;
+}
+
+static int mlx4_cmd_poll(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
+ int out_is_imm, u32 in_modifier, u8 op_modifier,
+ u16 op, unsigned long timeout)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ void __iomem *hcr = priv->cmd.hcr;
+ int err = 0;
+ unsigned long end;
+
+ down(&priv->cmd.poll_sem);
+
+ err = mlx4_cmd_post(dev, in_param, out_param ? *out_param : 0,
+ in_modifier, op_modifier, op, CMD_POLL_TOKEN, 0);
+ if (err)
+ goto out;
+
+ end = msecs_to_jiffies(timeout) + jiffies;
+ while (cmd_pending(dev) && time_before(jiffies, end))
+ cond_resched();
+
+ if (cmd_pending(dev)) {
+ err = -ETIMEDOUT;
+ goto out;
+ }
+
+ if (out_is_imm)
+ *out_param =
+ (u64) be32_to_cpu((__force __be32)
+ __raw_readl(hcr + HCR_OUT_PARAM_OFFSET)) << 32 |
+ (u64) be32_to_cpu((__force __be32)
+ __raw_readl(hcr + HCR_OUT_PARAM_OFFSET + 4));
+
+ err = mlx4_status_to_errno(be32_to_cpu((__force __be32)
+ __raw_readl(hcr + HCR_STATUS_OFFSET)) >> 24);
+
+out:
+ up(&priv->cmd.poll_sem);
+ return err;
+}
+
+void mlx4_cmd_event(struct mlx4_dev *dev, u16 token, u8 status, u64 out_param)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ struct mlx4_cmd_context *context =
+ &priv->cmd.context[token & priv->cmd.token_mask];
+
+ /* previously timed out command completing at long last */
+ if (token != context->token)
+ return;
+
+ context->result = mlx4_status_to_errno(status);
+ context->out_param = out_param;
+
+ complete(&context->done);
+}
+
+static int mlx4_cmd_wait(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
+ int out_is_imm, u32 in_modifier, u8 op_modifier,
+ u16 op, unsigned long timeout)
+{
+ struct mlx4_cmd *cmd = &mlx4_priv(dev)->cmd;
+ struct mlx4_cmd_context *context;
+ int err = 0;
+
+ down(&cmd->event_sem);
+
+ spin_lock(&cmd->context_lock);
+ BUG_ON(cmd->free_head < 0);
+ context = &cmd->context[cmd->free_head];
+ context->token += cmd->token_mask + 1;
+ cmd->free_head = context->next;
+ spin_unlock(&cmd->context_lock);
+
+ init_completion(&context->done);
+
+ mlx4_cmd_post(dev, in_param, out_param ? *out_param : 0,
+ in_modifier, op_modifier, op, context->token, 1);
+
+ if (!wait_for_completion_timeout(&context->done, msecs_to_jiffies(timeout))) {
+ err = -EBUSY;
+ goto out;
+ }
+
+ err = context->result;
+ if (err)
+ goto out;
+
+ if (out_is_imm)
+ *out_param = context->out_param;
+
+out:
+ spin_lock(&cmd->context_lock);
+ context->next = cmd->free_head;
+ cmd->free_head = context - cmd->context;
+ spin_unlock(&cmd->context_lock);
+
+ up(&cmd->event_sem);
+ return err;
+}
+
+int __mlx4_cmd(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
+ int out_is_imm, u32 in_modifier, u8 op_modifier,
+ u16 op, unsigned long timeout)
+{
+ if (mlx4_priv(dev)->cmd.use_events)
+ return mlx4_cmd_wait(dev, in_param, out_param, out_is_imm,
+ in_modifier, op_modifier, op, timeout);
+ else
+ return mlx4_cmd_poll(dev, in_param, out_param, out_is_imm,
+ in_modifier, op_modifier, op, timeout);
+}
+EXPORT_SYMBOL_GPL(__mlx4_cmd);
+
+int mlx4_cmd_init(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+
+ mutex_init(&priv->cmd.hcr_mutex);
+ sema_init(&priv->cmd.poll_sem, 1);
+ priv->cmd.use_events = 0;
+ priv->cmd.toggle = 1;
+
+ priv->cmd.hcr = ioremap(pci_resource_start(dev->pdev, 0) + MLX4_HCR_BASE,
+ MLX4_HCR_SIZE);
+ if (!priv->cmd.hcr) {
+ mlx4_err(dev, "Couldn't map command register.");
+ return -ENOMEM;
+ }
+
+ priv->cmd.pool = pci_pool_create("mlx4_cmd", dev->pdev,
+ MLX4_MAILBOX_SIZE,
+ MLX4_MAILBOX_SIZE, 0);
+ if (!priv->cmd.pool) {
+ iounmap(priv->cmd.hcr);
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+void mlx4_cmd_cleanup(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+
+ pci_pool_destroy(priv->cmd.pool);
+ iounmap(priv->cmd.hcr);
+}
+
+/*
+ * Switch to using events to issue FW commands (can only be called
+ * after event queue for command events has been initialized).
+ */
+int mlx4_cmd_use_events(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ int i;
+
+ priv->cmd.context = kmalloc(priv->cmd.max_cmds *
+ sizeof (struct mlx4_cmd_context),
+ GFP_KERNEL);
+ if (!priv->cmd.context)
+ return -ENOMEM;
+
+ for (i = 0; i < priv->cmd.max_cmds; ++i) {
+ priv->cmd.context[i].token = i;
+ priv->cmd.context[i].next = i + 1;
+ }
+
+ priv->cmd.context[priv->cmd.max_cmds - 1].next = -1;
+ priv->cmd.free_head = 0;
+
+ sema_init(&priv->cmd.event_sem, priv->cmd.max_cmds);
+ spin_lock_init(&priv->cmd.context_lock);
+
+ for (priv->cmd.token_mask = 1;
+ priv->cmd.token_mask < priv->cmd.max_cmds;
+ priv->cmd.token_mask <<= 1)
+ ; /* nothing */
+ --priv->cmd.token_mask;
+
+ priv->cmd.use_events = 1;
+
+ down(&priv->cmd.poll_sem);
+
+ return 0;
+}
+
+/*
+ * Switch back to polling (used when shutting down the device)
+ */
+void mlx4_cmd_use_polling(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ int i;
+
+ priv->cmd.use_events = 0;
+
+ for (i = 0; i < priv->cmd.max_cmds; ++i)
+ down(&priv->cmd.event_sem);
+
+ kfree(priv->cmd.context);
+
+ up(&priv->cmd.poll_sem);
+}
+
+struct mlx4_cmd_mailbox *mlx4_alloc_cmd_mailbox(struct mlx4_dev *dev)
+{
+ struct mlx4_cmd_mailbox *mailbox;
+
+ mailbox = kmalloc(sizeof *mailbox, GFP_KERNEL);
+ if (!mailbox)
+ return ERR_PTR(-ENOMEM);
+
+ mailbox->buf = pci_pool_alloc(mlx4_priv(dev)->cmd.pool, GFP_KERNEL,
+ &mailbox->dma);
+ if (!mailbox->buf) {
+ kfree(mailbox);
+ return ERR_PTR(-ENOMEM);
+ }
+
+ return mailbox;
+}
+EXPORT_SYMBOL_GPL(mlx4_alloc_cmd_mailbox);
+
+void mlx4_free_cmd_mailbox(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox)
+{
+ if (!mailbox)
+ return;
+
+ pci_pool_free(mlx4_priv(dev)->cmd.pool, mailbox->buf, mailbox->dma);
+ kfree(mailbox);
+}
+EXPORT_SYMBOL_GPL(mlx4_free_cmd_mailbox);
--- /dev/null
+/*
+ * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
+ * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
+ * Copyright (c) 2005, 2006, 2007 Cisco Systems, Inc. All rights reserved.
+ * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2004 Voltaire, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/hardirq.h>
+#include <linux/gfp.h>
+
+#include <linux/mlx4/cmd.h>
+#include <linux/mlx4/cq.h>
+
+#include "mlx4.h"
+#include "icm.h"
+
+struct mlx4_cq_context {
+ __be32 flags;
+ u16 reserved1[3];
+ __be16 page_offset;
+ __be32 logsize_usrpage;
+ __be16 cq_period;
+ __be16 cq_max_count;
+ u8 reserved2[3];
+ u8 comp_eqn;
+ u8 log_page_size;
+ u8 reserved3[2];
+ u8 mtt_base_addr_h;
+ __be32 mtt_base_addr_l;
+ __be32 last_notified_index;
+ __be32 solicit_producer_index;
+ __be32 consumer_index;
+ __be32 producer_index;
+ u32 reserved4[2];
+ __be64 db_rec_addr;
+};
+
+#define MLX4_CQ_STATUS_OK ( 0 << 28)
+#define MLX4_CQ_STATUS_OVERFLOW ( 9 << 28)
+#define MLX4_CQ_STATUS_WRITE_FAIL (10 << 28)
+#define MLX4_CQ_FLAG_CC ( 1 << 18)
+#define MLX4_CQ_FLAG_OI ( 1 << 17)
+#define MLX4_CQ_STATE_ARMED ( 9 << 8)
+#define MLX4_CQ_STATE_ARMED_SOL ( 6 << 8)
+#define MLX4_EQ_STATE_FIRED (10 << 8)
+
+void mlx4_cq_completion(struct mlx4_dev *dev, u32 cqn)
+{
+ struct mlx4_cq *cq;
+
+ cq = radix_tree_lookup(&mlx4_priv(dev)->cq_table.tree,
+ cqn & (dev->caps.num_cqs - 1));
+ if (!cq) {
+ mlx4_warn(dev, "Completion event for bogus CQ %08x\n", cqn);
+ return;
+ }
+
+ ++cq->arm_sn;
+
+ cq->comp(cq);
+}
+
+void mlx4_cq_event(struct mlx4_dev *dev, u32 cqn, int event_type)
+{
+ struct mlx4_cq_table *cq_table = &mlx4_priv(dev)->cq_table;
+ struct mlx4_cq *cq;
+
+ spin_lock(&cq_table->lock);
+
+ cq = radix_tree_lookup(&cq_table->tree, cqn & (dev->caps.num_cqs - 1));
+ if (cq)
+ atomic_inc(&cq->refcount);
+
+ spin_unlock(&cq_table->lock);
+
+ if (!cq) {
+ mlx4_warn(dev, "Async event for bogus CQ %08x\n", cqn);
+ return;
+ }
+
+ cq->event(cq, event_type);
+
+ if (atomic_dec_and_test(&cq->refcount))
+ complete(&cq->free);
+}
+
+static int mlx4_SW2HW_CQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
+ int cq_num)
+{
+ return mlx4_cmd(dev, mailbox->dma, cq_num, 0, MLX4_CMD_SW2HW_CQ,
+ MLX4_CMD_TIME_CLASS_A);
+}
+
+static int mlx4_MODIFY_CQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
+ int cq_num, u32 opmod)
+{
+ return mlx4_cmd(dev, mailbox->dma, cq_num, opmod, MLX4_CMD_MODIFY_CQ,
+ MLX4_CMD_TIME_CLASS_A);
+}
+
+static int mlx4_HW2SW_CQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
+ int cq_num)
+{
+ return mlx4_cmd_box(dev, 0, mailbox ? mailbox->dma : 0, cq_num,
+ mailbox ? 0 : 1, MLX4_CMD_HW2SW_CQ,
+ MLX4_CMD_TIME_CLASS_A);
+}
+
+int mlx4_cq_modify(struct mlx4_dev *dev, struct mlx4_cq *cq,
+ u16 count, u16 period)
+{
+ struct mlx4_cmd_mailbox *mailbox;
+ struct mlx4_cq_context *cq_context;
+ int err;
+
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox))
+ return PTR_ERR(mailbox);
+
+ cq_context = mailbox->buf;
+ memset(cq_context, 0, sizeof *cq_context);
+
+ cq_context->cq_max_count = cpu_to_be16(count);
+ cq_context->cq_period = cpu_to_be16(period);
+
+ err = mlx4_MODIFY_CQ(dev, mailbox, cq->cqn, 1);
+
+ mlx4_free_cmd_mailbox(dev, mailbox);
+ return err;
+}
+EXPORT_SYMBOL_GPL(mlx4_cq_modify);
+
+int mlx4_cq_resize(struct mlx4_dev *dev, struct mlx4_cq *cq,
+ int entries, struct mlx4_mtt *mtt)
+{
+ struct mlx4_cmd_mailbox *mailbox;
+ struct mlx4_cq_context *cq_context;
+ u64 mtt_addr;
+ int err;
+
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox))
+ return PTR_ERR(mailbox);
+
+ cq_context = mailbox->buf;
+ memset(cq_context, 0, sizeof *cq_context);
+
+ cq_context->logsize_usrpage = cpu_to_be32(ilog2(entries) << 24);
+ cq_context->log_page_size = mtt->page_shift - 12;
+ mtt_addr = mlx4_mtt_addr(dev, mtt);
+ cq_context->mtt_base_addr_h = mtt_addr >> 32;
+ cq_context->mtt_base_addr_l = cpu_to_be32(mtt_addr & 0xffffffff);
+
+ err = mlx4_MODIFY_CQ(dev, mailbox, cq->cqn, 0);
+
+ mlx4_free_cmd_mailbox(dev, mailbox);
+ return err;
+}
+EXPORT_SYMBOL_GPL(mlx4_cq_resize);
+
+int mlx4_cq_alloc(struct mlx4_dev *dev, int nent, struct mlx4_mtt *mtt,
+ struct mlx4_uar *uar, u64 db_rec, struct mlx4_cq *cq,
+ unsigned vector, int collapsed)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ struct mlx4_cq_table *cq_table = &priv->cq_table;
+ struct mlx4_cmd_mailbox *mailbox;
+ struct mlx4_cq_context *cq_context;
+ u64 mtt_addr;
+ int err;
+
+ if (vector > dev->caps.num_comp_vectors + dev->caps.comp_pool)
+ return -EINVAL;
+
+ cq->vector = vector;
+
+ cq->cqn = mlx4_bitmap_alloc(&cq_table->bitmap);
+ if (cq->cqn == -1)
+ return -ENOMEM;
+
+ err = mlx4_table_get(dev, &cq_table->table, cq->cqn);
+ if (err)
+ goto err_out;
+
+ err = mlx4_table_get(dev, &cq_table->cmpt_table, cq->cqn);
+ if (err)
+ goto err_put;
+
+ spin_lock_irq(&cq_table->lock);
+ err = radix_tree_insert(&cq_table->tree, cq->cqn, cq);
+ spin_unlock_irq(&cq_table->lock);
+ if (err)
+ goto err_cmpt_put;
+
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox)) {
+ err = PTR_ERR(mailbox);
+ goto err_radix;
+ }
+
+ cq_context = mailbox->buf;
+ memset(cq_context, 0, sizeof *cq_context);
+
+ cq_context->flags = cpu_to_be32(!!collapsed << 18);
+ cq_context->logsize_usrpage = cpu_to_be32((ilog2(nent) << 24) | uar->index);
+ cq_context->comp_eqn = priv->eq_table.eq[vector].eqn;
+ cq_context->log_page_size = mtt->page_shift - MLX4_ICM_PAGE_SHIFT;
+
+ mtt_addr = mlx4_mtt_addr(dev, mtt);
+ cq_context->mtt_base_addr_h = mtt_addr >> 32;
+ cq_context->mtt_base_addr_l = cpu_to_be32(mtt_addr & 0xffffffff);
+ cq_context->db_rec_addr = cpu_to_be64(db_rec);
+
+ err = mlx4_SW2HW_CQ(dev, mailbox, cq->cqn);
+ mlx4_free_cmd_mailbox(dev, mailbox);
+ if (err)
+ goto err_radix;
+
+ cq->cons_index = 0;
+ cq->arm_sn = 1;
+ cq->uar = uar;
+ atomic_set(&cq->refcount, 1);
+ init_completion(&cq->free);
+
+ return 0;
+
+err_radix:
+ spin_lock_irq(&cq_table->lock);
+ radix_tree_delete(&cq_table->tree, cq->cqn);
+ spin_unlock_irq(&cq_table->lock);
+
+err_cmpt_put:
+ mlx4_table_put(dev, &cq_table->cmpt_table, cq->cqn);
+
+err_put:
+ mlx4_table_put(dev, &cq_table->table, cq->cqn);
+
+err_out:
+ mlx4_bitmap_free(&cq_table->bitmap, cq->cqn);
+
+ return err;
+}
+EXPORT_SYMBOL_GPL(mlx4_cq_alloc);
+
+void mlx4_cq_free(struct mlx4_dev *dev, struct mlx4_cq *cq)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ struct mlx4_cq_table *cq_table = &priv->cq_table;
+ int err;
+
+ err = mlx4_HW2SW_CQ(dev, NULL, cq->cqn);
+ if (err)
+ mlx4_warn(dev, "HW2SW_CQ failed (%d) for CQN %06x\n", err, cq->cqn);
+
+ synchronize_irq(priv->eq_table.eq[cq->vector].irq);
+
+ spin_lock_irq(&cq_table->lock);
+ radix_tree_delete(&cq_table->tree, cq->cqn);
+ spin_unlock_irq(&cq_table->lock);
+
+ if (atomic_dec_and_test(&cq->refcount))
+ complete(&cq->free);
+ wait_for_completion(&cq->free);
+
+ mlx4_table_put(dev, &cq_table->table, cq->cqn);
+ mlx4_bitmap_free(&cq_table->bitmap, cq->cqn);
+}
+EXPORT_SYMBOL_GPL(mlx4_cq_free);
+
+int mlx4_init_cq_table(struct mlx4_dev *dev)
+{
+ struct mlx4_cq_table *cq_table = &mlx4_priv(dev)->cq_table;
+ int err;
+
+ spin_lock_init(&cq_table->lock);
+ INIT_RADIX_TREE(&cq_table->tree, GFP_ATOMIC);
+
+ err = mlx4_bitmap_init(&cq_table->bitmap, dev->caps.num_cqs,
+ dev->caps.num_cqs - 1, dev->caps.reserved_cqs, 0);
+ if (err)
+ return err;
+
+ return 0;
+}
+
+void mlx4_cleanup_cq_table(struct mlx4_dev *dev)
+{
+ /* Nothing to do to clean up radix_tree */
+ mlx4_bitmap_cleanup(&mlx4_priv(dev)->cq_table.bitmap);
+}
--- /dev/null
+/*
+ * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#include <linux/mlx4/cq.h>
+#include <linux/mlx4/qp.h>
+#include <linux/mlx4/cmd.h>
+
+#include "mlx4_en.h"
+
+static void mlx4_en_cq_event(struct mlx4_cq *cq, enum mlx4_event event)
+{
+ return;
+}
+
+
+int mlx4_en_create_cq(struct mlx4_en_priv *priv,
+ struct mlx4_en_cq *cq,
+ int entries, int ring, enum cq_type mode)
+{
+ struct mlx4_en_dev *mdev = priv->mdev;
+ int err;
+
+ cq->size = entries;
+ if (mode == RX)
+ cq->buf_size = cq->size * sizeof(struct mlx4_cqe);
+ else
+ cq->buf_size = sizeof(struct mlx4_cqe);
+
+ cq->ring = ring;
+ cq->is_tx = mode;
+ spin_lock_init(&cq->lock);
+
+ err = mlx4_alloc_hwq_res(mdev->dev, &cq->wqres,
+ cq->buf_size, 2 * PAGE_SIZE);
+ if (err)
+ return err;
+
+ err = mlx4_en_map_buffer(&cq->wqres.buf);
+ if (err)
+ mlx4_free_hwq_res(mdev->dev, &cq->wqres, cq->buf_size);
+ else
+ cq->buf = (struct mlx4_cqe *) cq->wqres.buf.direct.buf;
+
+ return err;
+}
+
+int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq)
+{
+ struct mlx4_en_dev *mdev = priv->mdev;
+ int err = 0;
+ char name[25];
+
+ cq->dev = mdev->pndev[priv->port];
+ cq->mcq.set_ci_db = cq->wqres.db.db;
+ cq->mcq.arm_db = cq->wqres.db.db + 1;
+ *cq->mcq.set_ci_db = 0;
+ *cq->mcq.arm_db = 0;
+ memset(cq->buf, 0, cq->buf_size);
+
+ if (cq->is_tx == RX) {
+ if (mdev->dev->caps.comp_pool) {
+ if (!cq->vector) {
+ sprintf(name , "%s-rx-%d", priv->dev->name, cq->ring);
+ if (mlx4_assign_eq(mdev->dev, name, &cq->vector)) {
+ cq->vector = (cq->ring + 1 + priv->port) %
+ mdev->dev->caps.num_comp_vectors;
+ mlx4_warn(mdev, "Failed Assigning an EQ to "
+ "%s_rx-%d ,Falling back to legacy EQ's\n",
+ priv->dev->name, cq->ring);
+ }
+ }
+ } else {
+ cq->vector = (cq->ring + 1 + priv->port) %
+ mdev->dev->caps.num_comp_vectors;
+ }
+ } else {
+ if (!cq->vector || !mdev->dev->caps.comp_pool) {
+ /*Fallback to legacy pool in case of error*/
+ cq->vector = 0;
+ }
+ }
+
+ if (!cq->is_tx)
+ cq->size = priv->rx_ring[cq->ring].actual_size;
+
+ err = mlx4_cq_alloc(mdev->dev, cq->size, &cq->wqres.mtt, &mdev->priv_uar,
+ cq->wqres.db.dma, &cq->mcq, cq->vector, cq->is_tx);
+ if (err)
+ return err;
+
+ cq->mcq.comp = cq->is_tx ? mlx4_en_tx_irq : mlx4_en_rx_irq;
+ cq->mcq.event = mlx4_en_cq_event;
+
+ if (cq->is_tx) {
+ init_timer(&cq->timer);
+ cq->timer.function = mlx4_en_poll_tx_cq;
+ cq->timer.data = (unsigned long) cq;
+ } else {
+ netif_napi_add(cq->dev, &cq->napi, mlx4_en_poll_rx_cq, 64);
+ napi_enable(&cq->napi);
+ }
+
+ return 0;
+}
+
+void mlx4_en_destroy_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq,
+ bool reserve_vectors)
+{
+ struct mlx4_en_dev *mdev = priv->mdev;
+
+ mlx4_en_unmap_buffer(&cq->wqres.buf);
+ mlx4_free_hwq_res(mdev->dev, &cq->wqres, cq->buf_size);
+ if (priv->mdev->dev->caps.comp_pool && cq->vector && !reserve_vectors)
+ mlx4_release_eq(priv->mdev->dev, cq->vector);
+ cq->buf_size = 0;
+ cq->buf = NULL;
+}
+
+void mlx4_en_deactivate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq)
+{
+ struct mlx4_en_dev *mdev = priv->mdev;
+
+ if (cq->is_tx)
+ del_timer(&cq->timer);
+ else {
+ napi_disable(&cq->napi);
+ netif_napi_del(&cq->napi);
+ }
+
+ mlx4_cq_free(mdev->dev, &cq->mcq);
+}
+
+/* Set rx cq moderation parameters */
+int mlx4_en_set_cq_moder(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq)
+{
+ return mlx4_cq_modify(priv->mdev->dev, &cq->mcq,
+ cq->moder_cnt, cq->moder_time);
+}
+
+int mlx4_en_arm_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq)
+{
+ mlx4_cq_arm(&cq->mcq, MLX4_CQ_DB_REQ_NOT, priv->mdev->uar_map,
+ &priv->mdev->uar_lock);
+
+ return 0;
+}
+
+
--- /dev/null
+/*
+ * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/ethtool.h>
+#include <linux/netdevice.h>
+
+#include "mlx4_en.h"
+#include "en_port.h"
+
+
+static void
+mlx4_en_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+ struct mlx4_en_dev *mdev = priv->mdev;
+
+ strncpy(drvinfo->driver, DRV_NAME, 32);
+ strncpy(drvinfo->version, DRV_VERSION " (" DRV_RELDATE ")", 32);
+ sprintf(drvinfo->fw_version, "%d.%d.%d",
+ (u16) (mdev->dev->caps.fw_ver >> 32),
+ (u16) ((mdev->dev->caps.fw_ver >> 16) & 0xffff),
+ (u16) (mdev->dev->caps.fw_ver & 0xffff));
+ strncpy(drvinfo->bus_info, pci_name(mdev->dev->pdev), 32);
+ drvinfo->n_stats = 0;
+ drvinfo->regdump_len = 0;
+ drvinfo->eedump_len = 0;
+}
+
+static const char main_strings[][ETH_GSTRING_LEN] = {
+ "rx_packets", "tx_packets", "rx_bytes", "tx_bytes", "rx_errors",
+ "tx_errors", "rx_dropped", "tx_dropped", "multicast", "collisions",
+ "rx_length_errors", "rx_over_errors", "rx_crc_errors",
+ "rx_frame_errors", "rx_fifo_errors", "rx_missed_errors",
+ "tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors",
+ "tx_heartbeat_errors", "tx_window_errors",
+
+ /* port statistics */
+ "tso_packets",
+ "queue_stopped", "wake_queue", "tx_timeout", "rx_alloc_failed",
+ "rx_csum_good", "rx_csum_none", "tx_chksum_offload",
+
+ /* packet statistics */
+ "broadcast", "rx_prio_0", "rx_prio_1", "rx_prio_2", "rx_prio_3",
+ "rx_prio_4", "rx_prio_5", "rx_prio_6", "rx_prio_7", "tx_prio_0",
+ "tx_prio_1", "tx_prio_2", "tx_prio_3", "tx_prio_4", "tx_prio_5",
+ "tx_prio_6", "tx_prio_7",
+};
+#define NUM_MAIN_STATS 21
+#define NUM_ALL_STATS (NUM_MAIN_STATS + NUM_PORT_STATS + NUM_PKT_STATS + NUM_PERF_STATS)
+
+static const char mlx4_en_test_names[][ETH_GSTRING_LEN]= {
+ "Interupt Test",
+ "Link Test",
+ "Speed Test",
+ "Register Test",
+ "Loopback Test",
+};
+
+static u32 mlx4_en_get_msglevel(struct net_device *dev)
+{
+ return ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable;
+}
+
+static void mlx4_en_set_msglevel(struct net_device *dev, u32 val)
+{
+ ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable = val;
+}
+
+static void mlx4_en_get_wol(struct net_device *netdev,
+ struct ethtool_wolinfo *wol)
+{
+ struct mlx4_en_priv *priv = netdev_priv(netdev);
+ int err = 0;
+ u64 config = 0;
+
+ if (!(priv->mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_WOL)) {
+ wol->supported = 0;
+ wol->wolopts = 0;
+ return;
+ }
+
+ err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
+ if (err) {
+ en_err(priv, "Failed to get WoL information\n");
+ return;
+ }
+
+ if (config & MLX4_EN_WOL_MAGIC)
+ wol->supported = WAKE_MAGIC;
+ else
+ wol->supported = 0;
+
+ if (config & MLX4_EN_WOL_ENABLED)
+ wol->wolopts = WAKE_MAGIC;
+ else
+ wol->wolopts = 0;
+}
+
+static int mlx4_en_set_wol(struct net_device *netdev,
+ struct ethtool_wolinfo *wol)
+{
+ struct mlx4_en_priv *priv = netdev_priv(netdev);
+ u64 config = 0;
+ int err = 0;
+
+ if (!(priv->mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_WOL))
+ return -EOPNOTSUPP;
+
+ if (wol->supported & ~WAKE_MAGIC)
+ return -EINVAL;
+
+ err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
+ if (err) {
+ en_err(priv, "Failed to get WoL info, unable to modify\n");
+ return err;
+ }
+
+ if (wol->wolopts & WAKE_MAGIC) {
+ config |= MLX4_EN_WOL_DO_MODIFY | MLX4_EN_WOL_ENABLED |
+ MLX4_EN_WOL_MAGIC;
+ } else {
+ config &= ~(MLX4_EN_WOL_ENABLED | MLX4_EN_WOL_MAGIC);
+ config |= MLX4_EN_WOL_DO_MODIFY;
+ }
+
+ err = mlx4_wol_write(priv->mdev->dev, config, priv->port);
+ if (err)
+ en_err(priv, "Failed to set WoL information\n");
+
+ return err;
+}
+
+static int mlx4_en_get_sset_count(struct net_device *dev, int sset)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+
+ switch (sset) {
+ case ETH_SS_STATS:
+ return NUM_ALL_STATS +
+ (priv->tx_ring_num + priv->rx_ring_num) * 2;
+ case ETH_SS_TEST:
+ return MLX4_EN_NUM_SELF_TEST - !(priv->mdev->dev->caps.flags
+ & MLX4_DEV_CAP_FLAG_UC_LOOPBACK) * 2;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static void mlx4_en_get_ethtool_stats(struct net_device *dev,
+ struct ethtool_stats *stats, uint64_t *data)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+ int index = 0;
+ int i;
+
+ spin_lock_bh(&priv->stats_lock);
+
+ for (i = 0; i < NUM_MAIN_STATS; i++)
+ data[index++] = ((unsigned long *) &priv->stats)[i];
+ for (i = 0; i < NUM_PORT_STATS; i++)
+ data[index++] = ((unsigned long *) &priv->port_stats)[i];
+ for (i = 0; i < priv->tx_ring_num; i++) {
+ data[index++] = priv->tx_ring[i].packets;
+ data[index++] = priv->tx_ring[i].bytes;
+ }
+ for (i = 0; i < priv->rx_ring_num; i++) {
+ data[index++] = priv->rx_ring[i].packets;
+ data[index++] = priv->rx_ring[i].bytes;
+ }
+ for (i = 0; i < NUM_PKT_STATS; i++)
+ data[index++] = ((unsigned long *) &priv->pkstats)[i];
+ spin_unlock_bh(&priv->stats_lock);
+
+}
+
+static void mlx4_en_self_test(struct net_device *dev,
+ struct ethtool_test *etest, u64 *buf)
+{
+ mlx4_en_ex_selftest(dev, &etest->flags, buf);
+}
+
+static void mlx4_en_get_strings(struct net_device *dev,
+ uint32_t stringset, uint8_t *data)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+ int index = 0;
+ int i;
+
+ switch (stringset) {
+ case ETH_SS_TEST:
+ for (i = 0; i < MLX4_EN_NUM_SELF_TEST - 2; i++)
+ strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
+ if (priv->mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UC_LOOPBACK)
+ for (; i < MLX4_EN_NUM_SELF_TEST; i++)
+ strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
+ break;
+
+ case ETH_SS_STATS:
+ /* Add main counters */
+ for (i = 0; i < NUM_MAIN_STATS; i++)
+ strcpy(data + (index++) * ETH_GSTRING_LEN, main_strings[i]);
+ for (i = 0; i< NUM_PORT_STATS; i++)
+ strcpy(data + (index++) * ETH_GSTRING_LEN,
+ main_strings[i + NUM_MAIN_STATS]);
+ for (i = 0; i < priv->tx_ring_num; i++) {
+ sprintf(data + (index++) * ETH_GSTRING_LEN,
+ "tx%d_packets", i);
+ sprintf(data + (index++) * ETH_GSTRING_LEN,
+ "tx%d_bytes", i);
+ }
+ for (i = 0; i < priv->rx_ring_num; i++) {
+ sprintf(data + (index++) * ETH_GSTRING_LEN,
+ "rx%d_packets", i);
+ sprintf(data + (index++) * ETH_GSTRING_LEN,
+ "rx%d_bytes", i);
+ }
+ for (i = 0; i< NUM_PKT_STATS; i++)
+ strcpy(data + (index++) * ETH_GSTRING_LEN,
+ main_strings[i + NUM_MAIN_STATS + NUM_PORT_STATS]);
+ break;
+ }
+}
+
+static int mlx4_en_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+ int trans_type;
+
+ cmd->autoneg = AUTONEG_DISABLE;
+ cmd->supported = SUPPORTED_10000baseT_Full;
+ cmd->advertising = ADVERTISED_10000baseT_Full;
+
+ if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
+ return -ENOMEM;
+
+ trans_type = priv->port_state.transciver;
+ if (netif_carrier_ok(dev)) {
+ ethtool_cmd_speed_set(cmd, priv->port_state.link_speed);
+ cmd->duplex = DUPLEX_FULL;
+ } else {
+ ethtool_cmd_speed_set(cmd, -1);
+ cmd->duplex = -1;
+ }
+
+ if (trans_type > 0 && trans_type <= 0xC) {
+ cmd->port = PORT_FIBRE;
+ cmd->transceiver = XCVR_EXTERNAL;
+ cmd->supported |= SUPPORTED_FIBRE;
+ cmd->advertising |= ADVERTISED_FIBRE;
+ } else if (trans_type == 0x80 || trans_type == 0) {
+ cmd->port = PORT_TP;
+ cmd->transceiver = XCVR_INTERNAL;
+ cmd->supported |= SUPPORTED_TP;
+ cmd->advertising |= ADVERTISED_TP;
+ } else {
+ cmd->port = -1;
+ cmd->transceiver = -1;
+ }
+ return 0;
+}
+
+static int mlx4_en_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ if ((cmd->autoneg == AUTONEG_ENABLE) ||
+ (ethtool_cmd_speed(cmd) != SPEED_10000) ||
+ (cmd->duplex != DUPLEX_FULL))
+ return -EINVAL;
+
+ /* Nothing to change */
+ return 0;
+}
+
+static int mlx4_en_get_coalesce(struct net_device *dev,
+ struct ethtool_coalesce *coal)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+
+ coal->tx_coalesce_usecs = 0;
+ coal->tx_max_coalesced_frames = 0;
+ coal->rx_coalesce_usecs = priv->rx_usecs;
+ coal->rx_max_coalesced_frames = priv->rx_frames;
+
+ coal->pkt_rate_low = priv->pkt_rate_low;
+ coal->rx_coalesce_usecs_low = priv->rx_usecs_low;
+ coal->pkt_rate_high = priv->pkt_rate_high;
+ coal->rx_coalesce_usecs_high = priv->rx_usecs_high;
+ coal->rate_sample_interval = priv->sample_interval;
+ coal->use_adaptive_rx_coalesce = priv->adaptive_rx_coal;
+ return 0;
+}
+
+static int mlx4_en_set_coalesce(struct net_device *dev,
+ struct ethtool_coalesce *coal)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+ int err, i;
+
+ priv->rx_frames = (coal->rx_max_coalesced_frames ==
+ MLX4_EN_AUTO_CONF) ?
+ MLX4_EN_RX_COAL_TARGET :
+ coal->rx_max_coalesced_frames;
+ priv->rx_usecs = (coal->rx_coalesce_usecs ==
+ MLX4_EN_AUTO_CONF) ?
+ MLX4_EN_RX_COAL_TIME :
+ coal->rx_coalesce_usecs;
+
+ /* Set adaptive coalescing params */
+ priv->pkt_rate_low = coal->pkt_rate_low;
+ priv->rx_usecs_low = coal->rx_coalesce_usecs_low;
+ priv->pkt_rate_high = coal->pkt_rate_high;
+ priv->rx_usecs_high = coal->rx_coalesce_usecs_high;
+ priv->sample_interval = coal->rate_sample_interval;
+ priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce;
+ priv->last_moder_time = MLX4_EN_AUTO_CONF;
+ if (priv->adaptive_rx_coal)
+ return 0;
+
+ for (i = 0; i < priv->rx_ring_num; i++) {
+ priv->rx_cq[i].moder_cnt = priv->rx_frames;
+ priv->rx_cq[i].moder_time = priv->rx_usecs;
+ err = mlx4_en_set_cq_moder(priv, &priv->rx_cq[i]);
+ if (err)
+ return err;
+ }
+ return 0;
+}
+
+static int mlx4_en_set_pauseparam(struct net_device *dev,
+ struct ethtool_pauseparam *pause)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+ struct mlx4_en_dev *mdev = priv->mdev;
+ int err;
+
+ priv->prof->tx_pause = pause->tx_pause != 0;
+ priv->prof->rx_pause = pause->rx_pause != 0;
+ err = mlx4_SET_PORT_general(mdev->dev, priv->port,
+ priv->rx_skb_size + ETH_FCS_LEN,
+ priv->prof->tx_pause,
+ priv->prof->tx_ppp,
+ priv->prof->rx_pause,
+ priv->prof->rx_ppp);
+ if (err)
+ en_err(priv, "Failed setting pause params\n");
+
+ return err;
+}
+
+static void mlx4_en_get_pauseparam(struct net_device *dev,
+ struct ethtool_pauseparam *pause)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+
+ pause->tx_pause = priv->prof->tx_pause;
+ pause->rx_pause = priv->prof->rx_pause;
+}
+
+static int mlx4_en_set_ringparam(struct net_device *dev,
+ struct ethtool_ringparam *param)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+ struct mlx4_en_dev *mdev = priv->mdev;
+ u32 rx_size, tx_size;
+ int port_up = 0;
+ int err = 0;
+
+ if (param->rx_jumbo_pending || param->rx_mini_pending)
+ return -EINVAL;
+
+ rx_size = roundup_pow_of_two(param->rx_pending);
+ rx_size = max_t(u32, rx_size, MLX4_EN_MIN_RX_SIZE);
+ rx_size = min_t(u32, rx_size, MLX4_EN_MAX_RX_SIZE);
+ tx_size = roundup_pow_of_two(param->tx_pending);
+ tx_size = max_t(u32, tx_size, MLX4_EN_MIN_TX_SIZE);
+ tx_size = min_t(u32, tx_size, MLX4_EN_MAX_TX_SIZE);
+
+ if (rx_size == (priv->port_up ? priv->rx_ring[0].actual_size :
+ priv->rx_ring[0].size) &&
+ tx_size == priv->tx_ring[0].size)
+ return 0;
+
+ mutex_lock(&mdev->state_lock);
+ if (priv->port_up) {
+ port_up = 1;
+ mlx4_en_stop_port(dev);
+ }
+
+ mlx4_en_free_resources(priv, true);
+
+ priv->prof->tx_ring_size = tx_size;
+ priv->prof->rx_ring_size = rx_size;
+
+ err = mlx4_en_alloc_resources(priv);
+ if (err) {
+ en_err(priv, "Failed reallocating port resources\n");
+ goto out;
+ }
+ if (port_up) {
+ err = mlx4_en_start_port(dev);
+ if (err)
+ en_err(priv, "Failed starting port\n");
+ }
+
+out:
+ mutex_unlock(&mdev->state_lock);
+ return err;
+}
+
+static void mlx4_en_get_ringparam(struct net_device *dev,
+ struct ethtool_ringparam *param)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+
+ memset(param, 0, sizeof(*param));
+ param->rx_max_pending = MLX4_EN_MAX_RX_SIZE;
+ param->tx_max_pending = MLX4_EN_MAX_TX_SIZE;
+ param->rx_pending = priv->port_up ?
+ priv->rx_ring[0].actual_size : priv->rx_ring[0].size;
+ param->tx_pending = priv->tx_ring[0].size;
+}
+
+const struct ethtool_ops mlx4_en_ethtool_ops = {
+ .get_drvinfo = mlx4_en_get_drvinfo,
+ .get_settings = mlx4_en_get_settings,
+ .set_settings = mlx4_en_set_settings,
+ .get_link = ethtool_op_get_link,
+ .get_strings = mlx4_en_get_strings,
+ .get_sset_count = mlx4_en_get_sset_count,
+ .get_ethtool_stats = mlx4_en_get_ethtool_stats,
+ .self_test = mlx4_en_self_test,
+ .get_wol = mlx4_en_get_wol,
+ .set_wol = mlx4_en_set_wol,
+ .get_msglevel = mlx4_en_get_msglevel,
+ .set_msglevel = mlx4_en_set_msglevel,
+ .get_coalesce = mlx4_en_get_coalesce,
+ .set_coalesce = mlx4_en_set_coalesce,
+ .get_pauseparam = mlx4_en_get_pauseparam,
+ .set_pauseparam = mlx4_en_set_pauseparam,
+ .get_ringparam = mlx4_en_get_ringparam,
+ .set_ringparam = mlx4_en_set_ringparam,
+};
+
+
+
+
+
--- /dev/null
+/*
+ * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#include <linux/cpumask.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/slab.h>
+
+#include <linux/mlx4/driver.h>
+#include <linux/mlx4/device.h>
+#include <linux/mlx4/cmd.h>
+
+#include "mlx4_en.h"
+
+MODULE_AUTHOR("Liran Liss, Yevgeny Petrilin");
+MODULE_DESCRIPTION("Mellanox ConnectX HCA Ethernet driver");
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_VERSION(DRV_VERSION " ("DRV_RELDATE")");
+
+static const char mlx4_en_version[] =
+ DRV_NAME ": Mellanox ConnectX HCA Ethernet driver v"
+ DRV_VERSION " (" DRV_RELDATE ")\n";
+
+#define MLX4_EN_PARM_INT(X, def_val, desc) \
+ static unsigned int X = def_val;\
+ module_param(X , uint, 0444); \
+ MODULE_PARM_DESC(X, desc);
+
+
+/*
+ * Device scope module parameters
+ */
+
+
+/* Enable RSS TCP traffic */
+MLX4_EN_PARM_INT(tcp_rss, 1,
+ "Enable RSS for incomming TCP traffic or disabled (0)");
+/* Enable RSS UDP traffic */
+MLX4_EN_PARM_INT(udp_rss, 1,
+ "Enable RSS for incomming UDP traffic or disabled (0)");
+
+/* Priority pausing */
+MLX4_EN_PARM_INT(pfctx, 0, "Priority based Flow Control policy on TX[7:0]."
+ " Per priority bit mask");
+MLX4_EN_PARM_INT(pfcrx, 0, "Priority based Flow Control policy on RX[7:0]."
+ " Per priority bit mask");
+
+int en_print(const char *level, const struct mlx4_en_priv *priv,
+ const char *format, ...)
+{
+ va_list args;
+ struct va_format vaf;
+ int i;
+
+ va_start(args, format);
+
+ vaf.fmt = format;
+ vaf.va = &args;
+ if (priv->registered)
+ i = printk("%s%s: %s: %pV",
+ level, DRV_NAME, priv->dev->name, &vaf);
+ else
+ i = printk("%s%s: %s: Port %d: %pV",
+ level, DRV_NAME, dev_name(&priv->mdev->pdev->dev),
+ priv->port, &vaf);
+ va_end(args);
+
+ return i;
+}
+
+static int mlx4_en_get_profile(struct mlx4_en_dev *mdev)
+{
+ struct mlx4_en_profile *params = &mdev->profile;
+ int i;
+
+ params->tcp_rss = tcp_rss;
+ params->udp_rss = udp_rss;
+ if (params->udp_rss && !(mdev->dev->caps.flags
+ & MLX4_DEV_CAP_FLAG_UDP_RSS)) {
+ mlx4_warn(mdev, "UDP RSS is not supported on this device.\n");
+ params->udp_rss = 0;
+ }
+ for (i = 1; i <= MLX4_MAX_PORTS; i++) {
+ params->prof[i].rx_pause = 1;
+ params->prof[i].rx_ppp = pfcrx;
+ params->prof[i].tx_pause = 1;
+ params->prof[i].tx_ppp = pfctx;
+ params->prof[i].tx_ring_size = MLX4_EN_DEF_TX_RING_SIZE;
+ params->prof[i].rx_ring_size = MLX4_EN_DEF_RX_RING_SIZE;
+ params->prof[i].tx_ring_num = MLX4_EN_NUM_TX_RINGS +
+ (!!pfcrx) * MLX4_EN_NUM_PPP_RINGS;
+ }
+
+ return 0;
+}
+
+static void *mlx4_en_get_netdev(struct mlx4_dev *dev, void *ctx, u8 port)
+{
+ struct mlx4_en_dev *endev = ctx;
+
+ return endev->pndev[port];
+}
+
+static void mlx4_en_event(struct mlx4_dev *dev, void *endev_ptr,
+ enum mlx4_dev_event event, int port)
+{
+ struct mlx4_en_dev *mdev = (struct mlx4_en_dev *) endev_ptr;
+ struct mlx4_en_priv *priv;
+
+ if (!mdev->pndev[port])
+ return;
+
+ priv = netdev_priv(mdev->pndev[port]);
+ switch (event) {
+ case MLX4_DEV_EVENT_PORT_UP:
+ case MLX4_DEV_EVENT_PORT_DOWN:
+ /* To prevent races, we poll the link state in a separate
+ task rather than changing it here */
+ priv->link_state = event;
+ queue_work(mdev->workqueue, &priv->linkstate_task);
+ break;
+
+ case MLX4_DEV_EVENT_CATASTROPHIC_ERROR:
+ mlx4_err(mdev, "Internal error detected, restarting device\n");
+ break;
+
+ default:
+ mlx4_warn(mdev, "Unhandled event: %d\n", event);
+ }
+}
+
+static void mlx4_en_remove(struct mlx4_dev *dev, void *endev_ptr)
+{
+ struct mlx4_en_dev *mdev = endev_ptr;
+ int i;
+
+ mutex_lock(&mdev->state_lock);
+ mdev->device_up = false;
+ mutex_unlock(&mdev->state_lock);
+
+ mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH)
+ if (mdev->pndev[i])
+ mlx4_en_destroy_netdev(mdev->pndev[i]);
+
+ flush_workqueue(mdev->workqueue);
+ destroy_workqueue(mdev->workqueue);
+ mlx4_mr_free(dev, &mdev->mr);
+ mlx4_uar_free(dev, &mdev->priv_uar);
+ mlx4_pd_free(dev, mdev->priv_pdn);
+ kfree(mdev);
+}
+
+static void *mlx4_en_add(struct mlx4_dev *dev)
+{
+ struct mlx4_en_dev *mdev;
+ int i;
+ int err;
+
+ printk_once(KERN_INFO "%s", mlx4_en_version);
+
+ mdev = kzalloc(sizeof *mdev, GFP_KERNEL);
+ if (!mdev) {
+ dev_err(&dev->pdev->dev, "Device struct alloc failed, "
+ "aborting.\n");
+ err = -ENOMEM;
+ goto err_free_res;
+ }
+
+ if (mlx4_pd_alloc(dev, &mdev->priv_pdn))
+ goto err_free_dev;
+
+ if (mlx4_uar_alloc(dev, &mdev->priv_uar))
+ goto err_pd;
+
+ mdev->uar_map = ioremap((phys_addr_t) mdev->priv_uar.pfn << PAGE_SHIFT,
+ PAGE_SIZE);
+ if (!mdev->uar_map)
+ goto err_uar;
+ spin_lock_init(&mdev->uar_lock);
+
+ mdev->dev = dev;
+ mdev->dma_device = &(dev->pdev->dev);
+ mdev->pdev = dev->pdev;
+ mdev->device_up = false;
+
+ mdev->LSO_support = !!(dev->caps.flags & (1 << 15));
+ if (!mdev->LSO_support)
+ mlx4_warn(mdev, "LSO not supported, please upgrade to later "
+ "FW version to enable LSO\n");
+
+ if (mlx4_mr_alloc(mdev->dev, mdev->priv_pdn, 0, ~0ull,
+ MLX4_PERM_LOCAL_WRITE | MLX4_PERM_LOCAL_READ,
+ 0, 0, &mdev->mr)) {
+ mlx4_err(mdev, "Failed allocating memory region\n");
+ goto err_uar;
+ }
+ if (mlx4_mr_enable(mdev->dev, &mdev->mr)) {
+ mlx4_err(mdev, "Failed enabling memory region\n");
+ goto err_mr;
+ }
+
+ /* Build device profile according to supplied module parameters */
+ err = mlx4_en_get_profile(mdev);
+ if (err) {
+ mlx4_err(mdev, "Bad module parameters, aborting.\n");
+ goto err_mr;
+ }
+
+ /* Configure which ports to start according to module parameters */
+ mdev->port_cnt = 0;
+ mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH)
+ mdev->port_cnt++;
+
+ mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH) {
+ if (!dev->caps.comp_pool) {
+ mdev->profile.prof[i].rx_ring_num =
+ rounddown_pow_of_two(max_t(int, MIN_RX_RINGS,
+ min_t(int,
+ dev->caps.num_comp_vectors,
+ MAX_RX_RINGS)));
+ } else {
+ mdev->profile.prof[i].rx_ring_num = rounddown_pow_of_two(
+ min_t(int, dev->caps.comp_pool/
+ dev->caps.num_ports - 1 , MAX_MSIX_P_PORT - 1));
+ }
+ }
+
+ /* Create our own workqueue for reset/multicast tasks
+ * Note: we cannot use the shared workqueue because of deadlocks caused
+ * by the rtnl lock */
+ mdev->workqueue = create_singlethread_workqueue("mlx4_en");
+ if (!mdev->workqueue) {
+ err = -ENOMEM;
+ goto err_mr;
+ }
+
+ /* At this stage all non-port specific tasks are complete:
+ * mark the card state as up */
+ mutex_init(&mdev->state_lock);
+ mdev->device_up = true;
+
+ /* Setup ports */
+
+ /* Create a netdev for each port */
+ mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH) {
+ mlx4_info(mdev, "Activating port:%d\n", i);
+ if (mlx4_en_init_netdev(mdev, i, &mdev->profile.prof[i]))
+ mdev->pndev[i] = NULL;
+ }
+ return mdev;
+
+err_mr:
+ mlx4_mr_free(dev, &mdev->mr);
+err_uar:
+ mlx4_uar_free(dev, &mdev->priv_uar);
+err_pd:
+ mlx4_pd_free(dev, mdev->priv_pdn);
+err_free_dev:
+ kfree(mdev);
+err_free_res:
+ return NULL;
+}
+
+static struct mlx4_interface mlx4_en_interface = {
+ .add = mlx4_en_add,
+ .remove = mlx4_en_remove,
+ .event = mlx4_en_event,
+ .get_dev = mlx4_en_get_netdev,
+ .protocol = MLX4_PROT_ETH,
+};
+
+static int __init mlx4_en_init(void)
+{
+ return mlx4_register_interface(&mlx4_en_interface);
+}
+
+static void __exit mlx4_en_cleanup(void)
+{
+ mlx4_unregister_interface(&mlx4_en_interface);
+}
+
+module_init(mlx4_en_init);
+module_exit(mlx4_en_cleanup);
+
--- /dev/null
+/*
+ * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#include <linux/etherdevice.h>
+#include <linux/tcp.h>
+#include <linux/if_vlan.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+
+#include <linux/mlx4/driver.h>
+#include <linux/mlx4/device.h>
+#include <linux/mlx4/cmd.h>
+#include <linux/mlx4/cq.h>
+
+#include "mlx4_en.h"
+#include "en_port.h"
+
+static void mlx4_en_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+ struct mlx4_en_dev *mdev = priv->mdev;
+ int err;
+ int idx;
+
+ en_dbg(HW, priv, "adding VLAN:%d\n", vid);
+
+ set_bit(vid, priv->active_vlans);
+
+ /* Add VID to port VLAN filter */
+ mutex_lock(&mdev->state_lock);
+ if (mdev->device_up && priv->port_up) {
+ err = mlx4_SET_VLAN_FLTR(mdev->dev, priv);
+ if (err)
+ en_err(priv, "Failed configuring VLAN filter\n");
+ }
+ if (mlx4_register_vlan(mdev->dev, priv->port, vid, &idx))
+ en_err(priv, "failed adding vlan %d\n", vid);
+ mutex_unlock(&mdev->state_lock);
+
+}
+
+static void mlx4_en_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+ struct mlx4_en_dev *mdev = priv->mdev;
+ int err;
+ int idx;
+
+ en_dbg(HW, priv, "Killing VID:%d\n", vid);
+
+ clear_bit(vid, priv->active_vlans);
+
+ /* Remove VID from port VLAN filter */
+ mutex_lock(&mdev->state_lock);
+ if (!mlx4_find_cached_vlan(mdev->dev, priv->port, vid, &idx))
+ mlx4_unregister_vlan(mdev->dev, priv->port, idx);
+ else
+ en_err(priv, "could not find vid %d in cache\n", vid);
+
+ if (mdev->device_up && priv->port_up) {
+ err = mlx4_SET_VLAN_FLTR(mdev->dev, priv);
+ if (err)
+ en_err(priv, "Failed configuring VLAN filter\n");
+ }
+ mutex_unlock(&mdev->state_lock);
+}
+
+u64 mlx4_en_mac_to_u64(u8 *addr)
+{
+ u64 mac = 0;
+ int i;
+
+ for (i = 0; i < ETH_ALEN; i++) {
+ mac <<= 8;
+ mac |= addr[i];
+ }
+ return mac;
+}
+
+static int mlx4_en_set_mac(struct net_device *dev, void *addr)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+ struct mlx4_en_dev *mdev = priv->mdev;
+ struct sockaddr *saddr = addr;
+
+ if (!is_valid_ether_addr(saddr->sa_data))
+ return -EADDRNOTAVAIL;
+
+ memcpy(dev->dev_addr, saddr->sa_data, ETH_ALEN);
+ priv->mac = mlx4_en_mac_to_u64(dev->dev_addr);
+ queue_work(mdev->workqueue, &priv->mac_task);
+ return 0;
+}
+
+static void mlx4_en_do_set_mac(struct work_struct *work)
+{
+ struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
+ mac_task);
+ struct mlx4_en_dev *mdev = priv->mdev;
+ int err = 0;
+
+ mutex_lock(&mdev->state_lock);
+ if (priv->port_up) {
+ /* Remove old MAC and insert the new one */
+ err = mlx4_replace_mac(mdev->dev, priv->port,
+ priv->base_qpn, priv->mac, 0);
+ if (err)
+ en_err(priv, "Failed changing HW MAC address\n");
+ } else
+ en_dbg(HW, priv, "Port is down while "
+ "registering mac, exiting...\n");
+
+ mutex_unlock(&mdev->state_lock);
+}
+
+static void mlx4_en_clear_list(struct net_device *dev)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+
+ kfree(priv->mc_addrs);
+ priv->mc_addrs_cnt = 0;
+}
+
+static void mlx4_en_cache_mclist(struct net_device *dev)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+ struct netdev_hw_addr *ha;
+ char *mc_addrs;
+ int mc_addrs_cnt = netdev_mc_count(dev);
+ int i;
+
+ mc_addrs = kmalloc(mc_addrs_cnt * ETH_ALEN, GFP_ATOMIC);
+ if (!mc_addrs) {
+ en_err(priv, "failed to allocate multicast list\n");
+ return;
+ }
+ i = 0;
+ netdev_for_each_mc_addr(ha, dev)
+ memcpy(mc_addrs + i++ * ETH_ALEN, ha->addr, ETH_ALEN);
+ priv->mc_addrs = mc_addrs;
+ priv->mc_addrs_cnt = mc_addrs_cnt;
+}
+
+
+static void mlx4_en_set_multicast(struct net_device *dev)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+
+ if (!priv->port_up)
+ return;
+
+ queue_work(priv->mdev->workqueue, &priv->mcast_task);
+}
+
+static void mlx4_en_do_set_multicast(struct work_struct *work)
+{
+ struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
+ mcast_task);
+ struct mlx4_en_dev *mdev = priv->mdev;
+ struct net_device *dev = priv->dev;
+ u64 mcast_addr = 0;
+ u8 mc_list[16] = {0};
+ int err;
+
+ mutex_lock(&mdev->state_lock);
+ if (!mdev->device_up) {
+ en_dbg(HW, priv, "Card is not up, "
+ "ignoring multicast change.\n");
+ goto out;
+ }
+ if (!priv->port_up) {
+ en_dbg(HW, priv, "Port is down, "
+ "ignoring multicast change.\n");
+ goto out;
+ }
+
+ /*
+ * Promsicuous mode: disable all filters
+ */
+
+ if (dev->flags & IFF_PROMISC) {
+ if (!(priv->flags & MLX4_EN_FLAG_PROMISC)) {
+ if (netif_msg_rx_status(priv))
+ en_warn(priv, "Entering promiscuous mode\n");
+ priv->flags |= MLX4_EN_FLAG_PROMISC;
+
+ /* Enable promiscouos mode */
+ if (!(mdev->dev->caps.flags &
+ MLX4_DEV_CAP_FLAG_VEP_UC_STEER))
+ err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port,
+ priv->base_qpn, 1);
+ else
+ err = mlx4_unicast_promisc_add(mdev->dev, priv->base_qpn,
+ priv->port);
+ if (err)
+ en_err(priv, "Failed enabling "
+ "promiscuous mode\n");
+
+ /* Disable port multicast filter (unconditionally) */
+ err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
+ 0, MLX4_MCAST_DISABLE);
+ if (err)
+ en_err(priv, "Failed disabling "
+ "multicast filter\n");
+
+ /* Add the default qp number as multicast promisc */
+ if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) {
+ err = mlx4_multicast_promisc_add(mdev->dev, priv->base_qpn,
+ priv->port);
+ if (err)
+ en_err(priv, "Failed entering multicast promisc mode\n");
+ priv->flags |= MLX4_EN_FLAG_MC_PROMISC;
+ }
+
+ /* Disable port VLAN filter */
+ err = mlx4_SET_VLAN_FLTR(mdev->dev, priv);
+ if (err)
+ en_err(priv, "Failed disabling VLAN filter\n");
+ }
+ goto out;
+ }
+
+ /*
+ * Not in promiscuous mode
+ */
+
+ if (priv->flags & MLX4_EN_FLAG_PROMISC) {
+ if (netif_msg_rx_status(priv))
+ en_warn(priv, "Leaving promiscuous mode\n");
+ priv->flags &= ~MLX4_EN_FLAG_PROMISC;
+
+ /* Disable promiscouos mode */
+ if (!(mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER))
+ err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port,
+ priv->base_qpn, 0);
+ else
+ err = mlx4_unicast_promisc_remove(mdev->dev, priv->base_qpn,
+ priv->port);
+ if (err)
+ en_err(priv, "Failed disabling promiscuous mode\n");
+
+ /* Disable Multicast promisc */
+ if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) {
+ err = mlx4_multicast_promisc_remove(mdev->dev, priv->base_qpn,
+ priv->port);
+ if (err)
+ en_err(priv, "Failed disabling multicast promiscuous mode\n");
+ priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC;
+ }
+
+ /* Enable port VLAN filter */
+ err = mlx4_SET_VLAN_FLTR(mdev->dev, priv);
+ if (err)
+ en_err(priv, "Failed enabling VLAN filter\n");
+ }
+
+ /* Enable/disable the multicast filter according to IFF_ALLMULTI */
+ if (dev->flags & IFF_ALLMULTI) {
+ err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
+ 0, MLX4_MCAST_DISABLE);
+ if (err)
+ en_err(priv, "Failed disabling multicast filter\n");
+
+ /* Add the default qp number as multicast promisc */
+ if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) {
+ err = mlx4_multicast_promisc_add(mdev->dev, priv->base_qpn,
+ priv->port);
+ if (err)
+ en_err(priv, "Failed entering multicast promisc mode\n");
+ priv->flags |= MLX4_EN_FLAG_MC_PROMISC;
+ }
+ } else {
+ int i;
+ /* Disable Multicast promisc */
+ if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) {
+ err = mlx4_multicast_promisc_remove(mdev->dev, priv->base_qpn,
+ priv->port);
+ if (err)
+ en_err(priv, "Failed disabling multicast promiscuous mode\n");
+ priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC;
+ }
+
+ err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
+ 0, MLX4_MCAST_DISABLE);
+ if (err)
+ en_err(priv, "Failed disabling multicast filter\n");
+
+ /* Detach our qp from all the multicast addresses */
+ for (i = 0; i < priv->mc_addrs_cnt; i++) {
+ memcpy(&mc_list[10], priv->mc_addrs + i * ETH_ALEN, ETH_ALEN);
+ mc_list[5] = priv->port;
+ mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp,
+ mc_list, MLX4_PROT_ETH);
+ }
+ /* Flush mcast filter and init it with broadcast address */
+ mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, ETH_BCAST,
+ 1, MLX4_MCAST_CONFIG);
+
+ /* Update multicast list - we cache all addresses so they won't
+ * change while HW is updated holding the command semaphor */
+ netif_tx_lock_bh(dev);
+ mlx4_en_cache_mclist(dev);
+ netif_tx_unlock_bh(dev);
+ for (i = 0; i < priv->mc_addrs_cnt; i++) {
+ mcast_addr =
+ mlx4_en_mac_to_u64(priv->mc_addrs + i * ETH_ALEN);
+ memcpy(&mc_list[10], priv->mc_addrs + i * ETH_ALEN, ETH_ALEN);
+ mc_list[5] = priv->port;
+ mlx4_multicast_attach(mdev->dev, &priv->rss_map.indir_qp,
+ mc_list, 0, MLX4_PROT_ETH);
+ mlx4_SET_MCAST_FLTR(mdev->dev, priv->port,
+ mcast_addr, 0, MLX4_MCAST_CONFIG);
+ }
+ err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
+ 0, MLX4_MCAST_ENABLE);
+ if (err)
+ en_err(priv, "Failed enabling multicast filter\n");
+ }
+out:
+ mutex_unlock(&mdev->state_lock);
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void mlx4_en_netpoll(struct net_device *dev)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+ struct mlx4_en_cq *cq;
+ unsigned long flags;
+ int i;
+
+ for (i = 0; i < priv->rx_ring_num; i++) {
+ cq = &priv->rx_cq[i];
+ spin_lock_irqsave(&cq->lock, flags);
+ napi_synchronize(&cq->napi);
+ mlx4_en_process_rx_cq(dev, cq, 0);
+ spin_unlock_irqrestore(&cq->lock, flags);
+ }
+}
+#endif
+
+static void mlx4_en_tx_timeout(struct net_device *dev)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+ struct mlx4_en_dev *mdev = priv->mdev;
+
+ if (netif_msg_timer(priv))
+ en_warn(priv, "Tx timeout called on port:%d\n", priv->port);
+
+ priv->port_stats.tx_timeout++;
+ en_dbg(DRV, priv, "Scheduling watchdog\n");
+ queue_work(mdev->workqueue, &priv->watchdog_task);
+}
+
+
+static struct net_device_stats *mlx4_en_get_stats(struct net_device *dev)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+
+ spin_lock_bh(&priv->stats_lock);
+ memcpy(&priv->ret_stats, &priv->stats, sizeof(priv->stats));
+ spin_unlock_bh(&priv->stats_lock);
+
+ return &priv->ret_stats;
+}
+
+static void mlx4_en_set_default_moderation(struct mlx4_en_priv *priv)
+{
+ struct mlx4_en_cq *cq;
+ int i;
+
+ /* If we haven't received a specific coalescing setting
+ * (module param), we set the moderation parameters as follows:
+ * - moder_cnt is set to the number of mtu sized packets to
+ * satisfy our coelsing target.
+ * - moder_time is set to a fixed value.
+ */
+ priv->rx_frames = MLX4_EN_RX_COAL_TARGET;
+ priv->rx_usecs = MLX4_EN_RX_COAL_TIME;
+ en_dbg(INTR, priv, "Default coalesing params for mtu:%d - "
+ "rx_frames:%d rx_usecs:%d\n",
+ priv->dev->mtu, priv->rx_frames, priv->rx_usecs);
+
+ /* Setup cq moderation params */
+ for (i = 0; i < priv->rx_ring_num; i++) {
+ cq = &priv->rx_cq[i];
+ cq->moder_cnt = priv->rx_frames;
+ cq->moder_time = priv->rx_usecs;
+ }
+
+ for (i = 0; i < priv->tx_ring_num; i++) {
+ cq = &priv->tx_cq[i];
+ cq->moder_cnt = MLX4_EN_TX_COAL_PKTS;
+ cq->moder_time = MLX4_EN_TX_COAL_TIME;
+ }
+
+ /* Reset auto-moderation params */
+ priv->pkt_rate_low = MLX4_EN_RX_RATE_LOW;
+ priv->rx_usecs_low = MLX4_EN_RX_COAL_TIME_LOW;
+ priv->pkt_rate_high = MLX4_EN_RX_RATE_HIGH;
+ priv->rx_usecs_high = MLX4_EN_RX_COAL_TIME_HIGH;
+ priv->sample_interval = MLX4_EN_SAMPLE_INTERVAL;
+ priv->adaptive_rx_coal = 1;
+ priv->last_moder_time = MLX4_EN_AUTO_CONF;
+ priv->last_moder_jiffies = 0;
+ priv->last_moder_packets = 0;
+ priv->last_moder_tx_packets = 0;
+ priv->last_moder_bytes = 0;
+}
+
+static void mlx4_en_auto_moderation(struct mlx4_en_priv *priv)
+{
+ unsigned long period = (unsigned long) (jiffies - priv->last_moder_jiffies);
+ struct mlx4_en_cq *cq;
+ unsigned long packets;
+ unsigned long rate;
+ unsigned long avg_pkt_size;
+ unsigned long rx_packets;
+ unsigned long rx_bytes;
+ unsigned long tx_packets;
+ unsigned long tx_pkt_diff;
+ unsigned long rx_pkt_diff;
+ int moder_time;
+ int i, err;
+
+ if (!priv->adaptive_rx_coal || period < priv->sample_interval * HZ)
+ return;
+
+ spin_lock_bh(&priv->stats_lock);
+ rx_packets = priv->stats.rx_packets;
+ rx_bytes = priv->stats.rx_bytes;
+ tx_packets = priv->stats.tx_packets;
+ spin_unlock_bh(&priv->stats_lock);
+
+ if (!priv->last_moder_jiffies || !period)
+ goto out;
+
+ tx_pkt_diff = ((unsigned long) (tx_packets -
+ priv->last_moder_tx_packets));
+ rx_pkt_diff = ((unsigned long) (rx_packets -
+ priv->last_moder_packets));
+ packets = max(tx_pkt_diff, rx_pkt_diff);
+ rate = packets * HZ / period;
+ avg_pkt_size = packets ? ((unsigned long) (rx_bytes -
+ priv->last_moder_bytes)) / packets : 0;
+
+ /* Apply auto-moderation only when packet rate exceeds a rate that
+ * it matters */
+ if (rate > MLX4_EN_RX_RATE_THRESH && avg_pkt_size > MLX4_EN_AVG_PKT_SMALL) {
+ /* If tx and rx packet rates are not balanced, assume that
+ * traffic is mainly BW bound and apply maximum moderation.
+ * Otherwise, moderate according to packet rate */
+ if (2 * tx_pkt_diff > 3 * rx_pkt_diff ||
+ 2 * rx_pkt_diff > 3 * tx_pkt_diff) {
+ moder_time = priv->rx_usecs_high;
+ } else {
+ if (rate < priv->pkt_rate_low)
+ moder_time = priv->rx_usecs_low;
+ else if (rate > priv->pkt_rate_high)
+ moder_time = priv->rx_usecs_high;
+ else
+ moder_time = (rate - priv->pkt_rate_low) *
+ (priv->rx_usecs_high - priv->rx_usecs_low) /
+ (priv->pkt_rate_high - priv->pkt_rate_low) +
+ priv->rx_usecs_low;
+ }
+ } else {
+ moder_time = priv->rx_usecs_low;
+ }
+
+ en_dbg(INTR, priv, "tx rate:%lu rx_rate:%lu\n",
+ tx_pkt_diff * HZ / period, rx_pkt_diff * HZ / period);
+
+ en_dbg(INTR, priv, "Rx moder_time changed from:%d to %d period:%lu "
+ "[jiff] packets:%lu avg_pkt_size:%lu rate:%lu [p/s])\n",
+ priv->last_moder_time, moder_time, period, packets,
+ avg_pkt_size, rate);
+
+ if (moder_time != priv->last_moder_time) {
+ priv->last_moder_time = moder_time;
+ for (i = 0; i < priv->rx_ring_num; i++) {
+ cq = &priv->rx_cq[i];
+ cq->moder_time = moder_time;
+ err = mlx4_en_set_cq_moder(priv, cq);
+ if (err) {
+ en_err(priv, "Failed modifying moderation for cq:%d\n", i);
+ break;
+ }
+ }
+ }
+
+out:
+ priv->last_moder_packets = rx_packets;
+ priv->last_moder_tx_packets = tx_packets;
+ priv->last_moder_bytes = rx_bytes;
+ priv->last_moder_jiffies = jiffies;
+}
+
+static void mlx4_en_do_get_stats(struct work_struct *work)
+{
+ struct delayed_work *delay = to_delayed_work(work);
+ struct mlx4_en_priv *priv = container_of(delay, struct mlx4_en_priv,
+ stats_task);
+ struct mlx4_en_dev *mdev = priv->mdev;
+ int err;
+
+ err = mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 0);
+ if (err)
+ en_dbg(HW, priv, "Could not update stats\n");
+
+ mutex_lock(&mdev->state_lock);
+ if (mdev->device_up) {
+ if (priv->port_up)
+ mlx4_en_auto_moderation(priv);
+
+ queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY);
+ }
+ if (mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port]) {
+ queue_work(mdev->workqueue, &priv->mac_task);
+ mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port] = 0;
+ }
+ mutex_unlock(&mdev->state_lock);
+}
+
+static void mlx4_en_linkstate(struct work_struct *work)
+{
+ struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
+ linkstate_task);
+ struct mlx4_en_dev *mdev = priv->mdev;
+ int linkstate = priv->link_state;
+
+ mutex_lock(&mdev->state_lock);
+ /* If observable port state changed set carrier state and
+ * report to system log */
+ if (priv->last_link_state != linkstate) {
+ if (linkstate == MLX4_DEV_EVENT_PORT_DOWN) {
+ en_info(priv, "Link Down\n");
+ netif_carrier_off(priv->dev);
+ } else {
+ en_info(priv, "Link Up\n");
+ netif_carrier_on(priv->dev);
+ }
+ }
+ priv->last_link_state = linkstate;
+ mutex_unlock(&mdev->state_lock);
+}
+
+
+int mlx4_en_start_port(struct net_device *dev)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+ struct mlx4_en_dev *mdev = priv->mdev;
+ struct mlx4_en_cq *cq;
+ struct mlx4_en_tx_ring *tx_ring;
+ int rx_index = 0;
+ int tx_index = 0;
+ int err = 0;
+ int i;
+ int j;
+ u8 mc_list[16] = {0};
+ char name[32];
+
+ if (priv->port_up) {
+ en_dbg(DRV, priv, "start port called while port already up\n");
+ return 0;
+ }
+
+ /* Calculate Rx buf size */
+ dev->mtu = min(dev->mtu, priv->max_mtu);
+ mlx4_en_calc_rx_buf(dev);
+ en_dbg(DRV, priv, "Rx buf size:%d\n", priv->rx_skb_size);
+
+ /* Configure rx cq's and rings */
+ err = mlx4_en_activate_rx_rings(priv);
+ if (err) {
+ en_err(priv, "Failed to activate RX rings\n");
+ return err;
+ }
+ for (i = 0; i < priv->rx_ring_num; i++) {
+ cq = &priv->rx_cq[i];
+
+ err = mlx4_en_activate_cq(priv, cq);
+ if (err) {
+ en_err(priv, "Failed activating Rx CQ\n");
+ goto cq_err;
+ }
+ for (j = 0; j < cq->size; j++)
+ cq->buf[j].owner_sr_opcode = MLX4_CQE_OWNER_MASK;
+ err = mlx4_en_set_cq_moder(priv, cq);
+ if (err) {
+ en_err(priv, "Failed setting cq moderation parameters");
+ mlx4_en_deactivate_cq(priv, cq);
+ goto cq_err;
+ }
+ mlx4_en_arm_cq(priv, cq);
+ priv->rx_ring[i].cqn = cq->mcq.cqn;
+ ++rx_index;
+ }
+
+ /* Set port mac number */
+ en_dbg(DRV, priv, "Setting mac for port %d\n", priv->port);
+ err = mlx4_register_mac(mdev->dev, priv->port,
+ priv->mac, &priv->base_qpn, 0);
+ if (err) {
+ en_err(priv, "Failed setting port mac\n");
+ goto cq_err;
+ }
+ mdev->mac_removed[priv->port] = 0;
+
+ err = mlx4_en_config_rss_steer(priv);
+ if (err) {
+ en_err(priv, "Failed configuring rss steering\n");
+ goto mac_err;
+ }
+
+ if (mdev->dev->caps.comp_pool && !priv->tx_vector) {
+ sprintf(name , "%s-tx", priv->dev->name);
+ if (mlx4_assign_eq(mdev->dev , name, &priv->tx_vector)) {
+ mlx4_warn(mdev, "Failed Assigning an EQ to "
+ "%s_tx ,Falling back to legacy "
+ "EQ's\n", priv->dev->name);
+ }
+ }
+ /* Configure tx cq's and rings */
+ for (i = 0; i < priv->tx_ring_num; i++) {
+ /* Configure cq */
+ cq = &priv->tx_cq[i];
+ cq->vector = priv->tx_vector;
+ err = mlx4_en_activate_cq(priv, cq);
+ if (err) {
+ en_err(priv, "Failed allocating Tx CQ\n");
+ goto tx_err;
+ }
+ err = mlx4_en_set_cq_moder(priv, cq);
+ if (err) {
+ en_err(priv, "Failed setting cq moderation parameters");
+ mlx4_en_deactivate_cq(priv, cq);
+ goto tx_err;
+ }
+ en_dbg(DRV, priv, "Resetting index of collapsed CQ:%d to -1\n", i);
+ cq->buf->wqe_index = cpu_to_be16(0xffff);
+
+ /* Configure ring */
+ tx_ring = &priv->tx_ring[i];
+ err = mlx4_en_activate_tx_ring(priv, tx_ring, cq->mcq.cqn);
+ if (err) {
+ en_err(priv, "Failed allocating Tx ring\n");
+ mlx4_en_deactivate_cq(priv, cq);
+ goto tx_err;
+ }
+ /* Set initial ownership of all Tx TXBBs to SW (1) */
+ for (j = 0; j < tx_ring->buf_size; j += STAMP_STRIDE)
+ *((u32 *) (tx_ring->buf + j)) = 0xffffffff;
+ ++tx_index;
+ }
+
+ /* Configure port */
+ err = mlx4_SET_PORT_general(mdev->dev, priv->port,
+ priv->rx_skb_size + ETH_FCS_LEN,
+ priv->prof->tx_pause,
+ priv->prof->tx_ppp,
+ priv->prof->rx_pause,
+ priv->prof->rx_ppp);
+ if (err) {
+ en_err(priv, "Failed setting port general configurations "
+ "for port %d, with error %d\n", priv->port, err);
+ goto tx_err;
+ }
+ /* Set default qp number */
+ err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, priv->base_qpn, 0);
+ if (err) {
+ en_err(priv, "Failed setting default qp numbers\n");
+ goto tx_err;
+ }
+
+ /* Init port */
+ en_dbg(HW, priv, "Initializing port\n");
+ err = mlx4_INIT_PORT(mdev->dev, priv->port);
+ if (err) {
+ en_err(priv, "Failed Initializing port\n");
+ goto tx_err;
+ }
+
+ /* Attach rx QP to bradcast address */
+ memset(&mc_list[10], 0xff, ETH_ALEN);
+ mc_list[5] = priv->port;
+ if (mlx4_multicast_attach(mdev->dev, &priv->rss_map.indir_qp, mc_list,
+ 0, MLX4_PROT_ETH))
+ mlx4_warn(mdev, "Failed Attaching Broadcast\n");
+
+ /* Must redo promiscuous mode setup. */
+ priv->flags &= ~(MLX4_EN_FLAG_PROMISC | MLX4_EN_FLAG_MC_PROMISC);
+
+ /* Schedule multicast task to populate multicast list */
+ queue_work(mdev->workqueue, &priv->mcast_task);
+
+ priv->port_up = true;
+ netif_tx_start_all_queues(dev);
+ return 0;
+
+tx_err:
+ while (tx_index--) {
+ mlx4_en_deactivate_tx_ring(priv, &priv->tx_ring[tx_index]);
+ mlx4_en_deactivate_cq(priv, &priv->tx_cq[tx_index]);
+ }
+
+ mlx4_en_release_rss_steer(priv);
+mac_err:
+ mlx4_unregister_mac(mdev->dev, priv->port, priv->base_qpn);
+cq_err:
+ while (rx_index--)
+ mlx4_en_deactivate_cq(priv, &priv->rx_cq[rx_index]);
+ for (i = 0; i < priv->rx_ring_num; i++)
+ mlx4_en_deactivate_rx_ring(priv, &priv->rx_ring[i]);
+
+ return err; /* need to close devices */
+}
+
+
+void mlx4_en_stop_port(struct net_device *dev)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+ struct mlx4_en_dev *mdev = priv->mdev;
+ int i;
+ u8 mc_list[16] = {0};
+
+ if (!priv->port_up) {
+ en_dbg(DRV, priv, "stop port called while port already down\n");
+ return;
+ }
+
+ /* Synchronize with tx routine */
+ netif_tx_lock_bh(dev);
+ netif_tx_stop_all_queues(dev);
+ netif_tx_unlock_bh(dev);
+
+ /* Set port as not active */
+ priv->port_up = false;
+
+ /* Detach All multicasts */
+ memset(&mc_list[10], 0xff, ETH_ALEN);
+ mc_list[5] = priv->port;
+ mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp, mc_list,
+ MLX4_PROT_ETH);
+ for (i = 0; i < priv->mc_addrs_cnt; i++) {
+ memcpy(&mc_list[10], priv->mc_addrs + i * ETH_ALEN, ETH_ALEN);
+ mc_list[5] = priv->port;
+ mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp,
+ mc_list, MLX4_PROT_ETH);
+ }
+ mlx4_en_clear_list(dev);
+ /* Flush multicast filter */
+ mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 1, MLX4_MCAST_CONFIG);
+
+ /* Unregister Mac address for the port */
+ mlx4_unregister_mac(mdev->dev, priv->port, priv->base_qpn);
+ mdev->mac_removed[priv->port] = 1;
+
+ /* Free TX Rings */
+ for (i = 0; i < priv->tx_ring_num; i++) {
+ mlx4_en_deactivate_tx_ring(priv, &priv->tx_ring[i]);
+ mlx4_en_deactivate_cq(priv, &priv->tx_cq[i]);
+ }
+ msleep(10);
+
+ for (i = 0; i < priv->tx_ring_num; i++)
+ mlx4_en_free_tx_buf(dev, &priv->tx_ring[i]);
+
+ /* Free RSS qps */
+ mlx4_en_release_rss_steer(priv);
+
+ /* Free RX Rings */
+ for (i = 0; i < priv->rx_ring_num; i++) {
+ mlx4_en_deactivate_rx_ring(priv, &priv->rx_ring[i]);
+ while (test_bit(NAPI_STATE_SCHED, &priv->rx_cq[i].napi.state))
+ msleep(1);
+ mlx4_en_deactivate_cq(priv, &priv->rx_cq[i]);
+ }
+
+ /* close port*/
+ mlx4_CLOSE_PORT(mdev->dev, priv->port);
+}
+
+static void mlx4_en_restart(struct work_struct *work)
+{
+ struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
+ watchdog_task);
+ struct mlx4_en_dev *mdev = priv->mdev;
+ struct net_device *dev = priv->dev;
+
+ en_dbg(DRV, priv, "Watchdog task called for port %d\n", priv->port);
+
+ mutex_lock(&mdev->state_lock);
+ if (priv->port_up) {
+ mlx4_en_stop_port(dev);
+ if (mlx4_en_start_port(dev))
+ en_err(priv, "Failed restarting port %d\n", priv->port);
+ }
+ mutex_unlock(&mdev->state_lock);
+}
+
+
+static int mlx4_en_open(struct net_device *dev)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+ struct mlx4_en_dev *mdev = priv->mdev;
+ int i;
+ int err = 0;
+
+ mutex_lock(&mdev->state_lock);
+
+ if (!mdev->device_up) {
+ en_err(priv, "Cannot open - device down/disabled\n");
+ err = -EBUSY;
+ goto out;
+ }
+
+ /* Reset HW statistics and performance counters */
+ if (mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 1))
+ en_dbg(HW, priv, "Failed dumping statistics\n");
+
+ memset(&priv->stats, 0, sizeof(priv->stats));
+ memset(&priv->pstats, 0, sizeof(priv->pstats));
+
+ for (i = 0; i < priv->tx_ring_num; i++) {
+ priv->tx_ring[i].bytes = 0;
+ priv->tx_ring[i].packets = 0;
+ }
+ for (i = 0; i < priv->rx_ring_num; i++) {
+ priv->rx_ring[i].bytes = 0;
+ priv->rx_ring[i].packets = 0;
+ }
+
+ err = mlx4_en_start_port(dev);
+ if (err)
+ en_err(priv, "Failed starting port:%d\n", priv->port);
+
+out:
+ mutex_unlock(&mdev->state_lock);
+ return err;
+}
+
+
+static int mlx4_en_close(struct net_device *dev)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+ struct mlx4_en_dev *mdev = priv->mdev;
+
+ en_dbg(IFDOWN, priv, "Close port called\n");
+
+ mutex_lock(&mdev->state_lock);
+
+ mlx4_en_stop_port(dev);
+ netif_carrier_off(dev);
+
+ mutex_unlock(&mdev->state_lock);
+ return 0;
+}
+
+void mlx4_en_free_resources(struct mlx4_en_priv *priv, bool reserve_vectors)
+{
+ int i;
+
+ for (i = 0; i < priv->tx_ring_num; i++) {
+ if (priv->tx_ring[i].tx_info)
+ mlx4_en_destroy_tx_ring(priv, &priv->tx_ring[i]);
+ if (priv->tx_cq[i].buf)
+ mlx4_en_destroy_cq(priv, &priv->tx_cq[i], reserve_vectors);
+ }
+
+ for (i = 0; i < priv->rx_ring_num; i++) {
+ if (priv->rx_ring[i].rx_info)
+ mlx4_en_destroy_rx_ring(priv, &priv->rx_ring[i]);
+ if (priv->rx_cq[i].buf)
+ mlx4_en_destroy_cq(priv, &priv->rx_cq[i], reserve_vectors);
+ }
+}
+
+int mlx4_en_alloc_resources(struct mlx4_en_priv *priv)
+{
+ struct mlx4_en_port_profile *prof = priv->prof;
+ int i;
+ int base_tx_qpn, err;
+
+ err = mlx4_qp_reserve_range(priv->mdev->dev, priv->tx_ring_num, 256, &base_tx_qpn);
+ if (err) {
+ en_err(priv, "failed reserving range for TX rings\n");
+ return err;
+ }
+
+ /* Create tx Rings */
+ for (i = 0; i < priv->tx_ring_num; i++) {
+ if (mlx4_en_create_cq(priv, &priv->tx_cq[i],
+ prof->tx_ring_size, i, TX))
+ goto err;
+
+ if (mlx4_en_create_tx_ring(priv, &priv->tx_ring[i], base_tx_qpn + i,
+ prof->tx_ring_size, TXBB_SIZE))
+ goto err;
+ }
+
+ /* Create rx Rings */
+ for (i = 0; i < priv->rx_ring_num; i++) {
+ if (mlx4_en_create_cq(priv, &priv->rx_cq[i],
+ prof->rx_ring_size, i, RX))
+ goto err;
+
+ if (mlx4_en_create_rx_ring(priv, &priv->rx_ring[i],
+ prof->rx_ring_size, priv->stride))
+ goto err;
+ }
+
+ return 0;
+
+err:
+ en_err(priv, "Failed to allocate NIC resources\n");
+ mlx4_qp_release_range(priv->mdev->dev, base_tx_qpn, priv->tx_ring_num);
+ return -ENOMEM;
+}
+
+
+void mlx4_en_destroy_netdev(struct net_device *dev)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+ struct mlx4_en_dev *mdev = priv->mdev;
+
+ en_dbg(DRV, priv, "Destroying netdev on port:%d\n", priv->port);
+
+ /* Unregister device - this will close the port if it was up */
+ if (priv->registered)
+ unregister_netdev(dev);
+
+ if (priv->allocated)
+ mlx4_free_hwq_res(mdev->dev, &priv->res, MLX4_EN_PAGE_SIZE);
+
+ cancel_delayed_work(&priv->stats_task);
+ /* flush any pending task for this netdev */
+ flush_workqueue(mdev->workqueue);
+
+ /* Detach the netdev so tasks would not attempt to access it */
+ mutex_lock(&mdev->state_lock);
+ mdev->pndev[priv->port] = NULL;
+ mutex_unlock(&mdev->state_lock);
+
+ mlx4_en_free_resources(priv, false);
+ free_netdev(dev);
+}
+
+static int mlx4_en_change_mtu(struct net_device *dev, int new_mtu)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+ struct mlx4_en_dev *mdev = priv->mdev;
+ int err = 0;
+
+ en_dbg(DRV, priv, "Change MTU called - current:%d new:%d\n",
+ dev->mtu, new_mtu);
+
+ if ((new_mtu < MLX4_EN_MIN_MTU) || (new_mtu > priv->max_mtu)) {
+ en_err(priv, "Bad MTU size:%d.\n", new_mtu);
+ return -EPERM;
+ }
+ dev->mtu = new_mtu;
+
+ if (netif_running(dev)) {
+ mutex_lock(&mdev->state_lock);
+ if (!mdev->device_up) {
+ /* NIC is probably restarting - let watchdog task reset
+ * the port */
+ en_dbg(DRV, priv, "Change MTU called with card down!?\n");
+ } else {
+ mlx4_en_stop_port(dev);
+ err = mlx4_en_start_port(dev);
+ if (err) {
+ en_err(priv, "Failed restarting port:%d\n",
+ priv->port);
+ queue_work(mdev->workqueue, &priv->watchdog_task);
+ }
+ }
+ mutex_unlock(&mdev->state_lock);
+ }
+ return 0;
+}
+
+static const struct net_device_ops mlx4_netdev_ops = {
+ .ndo_open = mlx4_en_open,
+ .ndo_stop = mlx4_en_close,
+ .ndo_start_xmit = mlx4_en_xmit,
+ .ndo_select_queue = mlx4_en_select_queue,
+ .ndo_get_stats = mlx4_en_get_stats,
+ .ndo_set_multicast_list = mlx4_en_set_multicast,
+ .ndo_set_mac_address = mlx4_en_set_mac,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_change_mtu = mlx4_en_change_mtu,
+ .ndo_tx_timeout = mlx4_en_tx_timeout,
+ .ndo_vlan_rx_add_vid = mlx4_en_vlan_rx_add_vid,
+ .ndo_vlan_rx_kill_vid = mlx4_en_vlan_rx_kill_vid,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = mlx4_en_netpoll,
+#endif
+};
+
+int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
+ struct mlx4_en_port_profile *prof)
+{
+ struct net_device *dev;
+ struct mlx4_en_priv *priv;
+ int i;
+ int err;
+
+ dev = alloc_etherdev_mqs(sizeof(struct mlx4_en_priv),
+ prof->tx_ring_num, prof->rx_ring_num);
+ if (dev == NULL) {
+ mlx4_err(mdev, "Net device allocation failed\n");
+ return -ENOMEM;
+ }
+
+ SET_NETDEV_DEV(dev, &mdev->dev->pdev->dev);
+ dev->dev_id = port - 1;
+
+ /*
+ * Initialize driver private data
+ */
+
+ priv = netdev_priv(dev);
+ memset(priv, 0, sizeof(struct mlx4_en_priv));
+ priv->dev = dev;
+ priv->mdev = mdev;
+ priv->prof = prof;
+ priv->port = port;
+ priv->port_up = false;
+ priv->flags = prof->flags;
+ priv->tx_ring_num = prof->tx_ring_num;
+ priv->rx_ring_num = prof->rx_ring_num;
+ priv->mac_index = -1;
+ priv->msg_enable = MLX4_EN_MSG_LEVEL;
+ spin_lock_init(&priv->stats_lock);
+ INIT_WORK(&priv->mcast_task, mlx4_en_do_set_multicast);
+ INIT_WORK(&priv->mac_task, mlx4_en_do_set_mac);
+ INIT_WORK(&priv->watchdog_task, mlx4_en_restart);
+ INIT_WORK(&priv->linkstate_task, mlx4_en_linkstate);
+ INIT_DELAYED_WORK(&priv->stats_task, mlx4_en_do_get_stats);
+
+ /* Query for default mac and max mtu */
+ priv->max_mtu = mdev->dev->caps.eth_mtu_cap[priv->port];
+ priv->mac = mdev->dev->caps.def_mac[priv->port];
+ if (ILLEGAL_MAC(priv->mac)) {
+ en_err(priv, "Port: %d, invalid mac burned: 0x%llx, quiting\n",
+ priv->port, priv->mac);
+ err = -EINVAL;
+ goto out;
+ }
+
+ priv->stride = roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc) +
+ DS_SIZE * MLX4_EN_MAX_RX_FRAGS);
+ err = mlx4_en_alloc_resources(priv);
+ if (err)
+ goto out;
+
+ /* Allocate page for receive rings */
+ err = mlx4_alloc_hwq_res(mdev->dev, &priv->res,
+ MLX4_EN_PAGE_SIZE, MLX4_EN_PAGE_SIZE);
+ if (err) {
+ en_err(priv, "Failed to allocate page for rx qps\n");
+ goto out;
+ }
+ priv->allocated = 1;
+
+ /*
+ * Initialize netdev entry points
+ */
+ dev->netdev_ops = &mlx4_netdev_ops;
+ dev->watchdog_timeo = MLX4_EN_WATCHDOG_TIMEOUT;
+ netif_set_real_num_tx_queues(dev, priv->tx_ring_num);
+ netif_set_real_num_rx_queues(dev, priv->rx_ring_num);
+
+ SET_ETHTOOL_OPS(dev, &mlx4_en_ethtool_ops);
+
+ /* Set defualt MAC */
+ dev->addr_len = ETH_ALEN;
+ for (i = 0; i < ETH_ALEN; i++) {
+ dev->dev_addr[ETH_ALEN - 1 - i] = (u8) (priv->mac >> (8 * i));
+ dev->perm_addr[ETH_ALEN - 1 - i] = (u8) (priv->mac >> (8 * i));
+ }
+
+ /*
+ * Set driver features
+ */
+ dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
+ if (mdev->LSO_support)
+ dev->hw_features |= NETIF_F_TSO | NETIF_F_TSO6;
+
+ dev->vlan_features = dev->hw_features;
+
+ dev->hw_features |= NETIF_F_RXCSUM;
+ dev->features = dev->hw_features | NETIF_F_HIGHDMA |
+ NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX |
+ NETIF_F_HW_VLAN_FILTER;
+
+ mdev->pndev[port] = dev;
+
+ netif_carrier_off(dev);
+ err = register_netdev(dev);
+ if (err) {
+ en_err(priv, "Netdev registration failed for port %d\n", port);
+ goto out;
+ }
+
+ en_warn(priv, "Using %d TX rings\n", prof->tx_ring_num);
+ en_warn(priv, "Using %d RX rings\n", prof->rx_ring_num);
+
+ /* Configure port */
+ err = mlx4_SET_PORT_general(mdev->dev, priv->port,
+ MLX4_EN_MIN_MTU,
+ 0, 0, 0, 0);
+ if (err) {
+ en_err(priv, "Failed setting port general configurations "
+ "for port %d, with error %d\n", priv->port, err);
+ goto out;
+ }
+
+ /* Init port */
+ en_warn(priv, "Initializing port\n");
+ err = mlx4_INIT_PORT(mdev->dev, priv->port);
+ if (err) {
+ en_err(priv, "Failed Initializing port\n");
+ goto out;
+ }
+ priv->registered = 1;
+ mlx4_en_set_default_moderation(priv);
+ queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY);
+ return 0;
+
+out:
+ mlx4_en_destroy_netdev(dev);
+ return err;
+}
+
--- /dev/null
+/*
+ * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+
+#include <linux/if_vlan.h>
+
+#include <linux/mlx4/device.h>
+#include <linux/mlx4/cmd.h>
+
+#include "en_port.h"
+#include "mlx4_en.h"
+
+
+int mlx4_SET_MCAST_FLTR(struct mlx4_dev *dev, u8 port,
+ u64 mac, u64 clear, u8 mode)
+{
+ return mlx4_cmd(dev, (mac | (clear << 63)), port, mode,
+ MLX4_CMD_SET_MCAST_FLTR, MLX4_CMD_TIME_CLASS_B);
+}
+
+int mlx4_SET_VLAN_FLTR(struct mlx4_dev *dev, struct mlx4_en_priv *priv)
+{
+ struct mlx4_cmd_mailbox *mailbox;
+ struct mlx4_set_vlan_fltr_mbox *filter;
+ int i;
+ int j;
+ int index = 0;
+ u32 entry;
+ int err = 0;
+
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox))
+ return PTR_ERR(mailbox);
+
+ filter = mailbox->buf;
+ memset(filter, 0, sizeof(*filter));
+ for (i = VLAN_FLTR_SIZE - 1; i >= 0; i--) {
+ entry = 0;
+ for (j = 0; j < 32; j++)
+ if (test_bit(index++, priv->active_vlans))
+ entry |= 1 << j;
+ filter->entry[i] = cpu_to_be32(entry);
+ }
+ err = mlx4_cmd(dev, mailbox->dma, priv->port, 0, MLX4_CMD_SET_VLAN_FLTR,
+ MLX4_CMD_TIME_CLASS_B);
+ mlx4_free_cmd_mailbox(dev, mailbox);
+ return err;
+}
+
+
+int mlx4_SET_PORT_general(struct mlx4_dev *dev, u8 port, int mtu,
+ u8 pptx, u8 pfctx, u8 pprx, u8 pfcrx)
+{
+ struct mlx4_cmd_mailbox *mailbox;
+ struct mlx4_set_port_general_context *context;
+ int err;
+ u32 in_mod;
+
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox))
+ return PTR_ERR(mailbox);
+ context = mailbox->buf;
+ memset(context, 0, sizeof *context);
+
+ context->flags = SET_PORT_GEN_ALL_VALID;
+ context->mtu = cpu_to_be16(mtu);
+ context->pptx = (pptx * (!pfctx)) << 7;
+ context->pfctx = pfctx;
+ context->pprx = (pprx * (!pfcrx)) << 7;
+ context->pfcrx = pfcrx;
+
+ in_mod = MLX4_SET_PORT_GENERAL << 8 | port;
+ err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT,
+ MLX4_CMD_TIME_CLASS_B);
+
+ mlx4_free_cmd_mailbox(dev, mailbox);
+ return err;
+}
+
+int mlx4_SET_PORT_qpn_calc(struct mlx4_dev *dev, u8 port, u32 base_qpn,
+ u8 promisc)
+{
+ struct mlx4_cmd_mailbox *mailbox;
+ struct mlx4_set_port_rqp_calc_context *context;
+ int err;
+ u32 in_mod;
+ u32 m_promisc = (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER) ?
+ MCAST_DIRECT : MCAST_DEFAULT;
+
+ if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER &&
+ dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER)
+ return 0;
+
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox))
+ return PTR_ERR(mailbox);
+ context = mailbox->buf;
+ memset(context, 0, sizeof *context);
+
+ context->base_qpn = cpu_to_be32(base_qpn);
+ context->n_mac = 0x2;
+ context->promisc = cpu_to_be32(promisc << SET_PORT_PROMISC_SHIFT |
+ base_qpn);
+ context->mcast = cpu_to_be32(m_promisc << SET_PORT_MC_PROMISC_SHIFT |
+ base_qpn);
+ context->intra_no_vlan = 0;
+ context->no_vlan = MLX4_NO_VLAN_IDX;
+ context->intra_vlan_miss = 0;
+ context->vlan_miss = MLX4_VLAN_MISS_IDX;
+
+ in_mod = MLX4_SET_PORT_RQP_CALC << 8 | port;
+ err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT,
+ MLX4_CMD_TIME_CLASS_B);
+
+ mlx4_free_cmd_mailbox(dev, mailbox);
+ return err;
+}
+
+int mlx4_en_QUERY_PORT(struct mlx4_en_dev *mdev, u8 port)
+{
+ struct mlx4_en_query_port_context *qport_context;
+ struct mlx4_en_priv *priv = netdev_priv(mdev->pndev[port]);
+ struct mlx4_en_port_state *state = &priv->port_state;
+ struct mlx4_cmd_mailbox *mailbox;
+ int err;
+
+ mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
+ if (IS_ERR(mailbox))
+ return PTR_ERR(mailbox);
+ memset(mailbox->buf, 0, sizeof(*qport_context));
+ err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, port, 0,
+ MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B);
+ if (err)
+ goto out;
+ qport_context = mailbox->buf;
+
+ /* This command is always accessed from Ethtool context
+ * already synchronized, no need in locking */
+ state->link_state = !!(qport_context->link_up & MLX4_EN_LINK_UP_MASK);
+ if ((qport_context->link_speed & MLX4_EN_SPEED_MASK) ==
+ MLX4_EN_1G_SPEED)
+ state->link_speed = 1000;
+ else
+ state->link_speed = 10000;
+ state->transciver = qport_context->transceiver;
+
+out:
+ mlx4_free_cmd_mailbox(mdev->dev, mailbox);
+ return err;
+}
+
+int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset)
+{
+ struct mlx4_en_stat_out_mbox *mlx4_en_stats;
+ struct mlx4_en_priv *priv = netdev_priv(mdev->pndev[port]);
+ struct net_device_stats *stats = &priv->stats;
+ struct mlx4_cmd_mailbox *mailbox;
+ u64 in_mod = reset << 8 | port;
+ int err;
+ int i;
+
+ mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
+ if (IS_ERR(mailbox))
+ return PTR_ERR(mailbox);
+ memset(mailbox->buf, 0, sizeof(*mlx4_en_stats));
+ err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, in_mod, 0,
+ MLX4_CMD_DUMP_ETH_STATS, MLX4_CMD_TIME_CLASS_B);
+ if (err)
+ goto out;
+
+ mlx4_en_stats = mailbox->buf;
+
+ spin_lock_bh(&priv->stats_lock);
+
+ stats->rx_packets = 0;
+ stats->rx_bytes = 0;
+ for (i = 0; i < priv->rx_ring_num; i++) {
+ stats->rx_packets += priv->rx_ring[i].packets;
+ stats->rx_bytes += priv->rx_ring[i].bytes;
+ }
+ stats->tx_packets = 0;
+ stats->tx_bytes = 0;
+ for (i = 0; i < priv->tx_ring_num; i++) {
+ stats->tx_packets += priv->tx_ring[i].packets;
+ stats->tx_bytes += priv->tx_ring[i].bytes;
+ }
+
+ stats->rx_errors = be64_to_cpu(mlx4_en_stats->PCS) +
+ be32_to_cpu(mlx4_en_stats->RdropLength) +
+ be32_to_cpu(mlx4_en_stats->RJBBR) +
+ be32_to_cpu(mlx4_en_stats->RCRC) +
+ be32_to_cpu(mlx4_en_stats->RRUNT);
+ stats->tx_errors = be32_to_cpu(mlx4_en_stats->TDROP);
+ stats->multicast = be64_to_cpu(mlx4_en_stats->MCAST_prio_0) +
+ be64_to_cpu(mlx4_en_stats->MCAST_prio_1) +
+ be64_to_cpu(mlx4_en_stats->MCAST_prio_2) +
+ be64_to_cpu(mlx4_en_stats->MCAST_prio_3) +
+ be64_to_cpu(mlx4_en_stats->MCAST_prio_4) +
+ be64_to_cpu(mlx4_en_stats->MCAST_prio_5) +
+ be64_to_cpu(mlx4_en_stats->MCAST_prio_6) +
+ be64_to_cpu(mlx4_en_stats->MCAST_prio_7) +
+ be64_to_cpu(mlx4_en_stats->MCAST_novlan);
+ stats->collisions = 0;
+ stats->rx_length_errors = be32_to_cpu(mlx4_en_stats->RdropLength);
+ stats->rx_over_errors = be32_to_cpu(mlx4_en_stats->RdropOvflw);
+ stats->rx_crc_errors = be32_to_cpu(mlx4_en_stats->RCRC);
+ stats->rx_frame_errors = 0;
+ stats->rx_fifo_errors = be32_to_cpu(mlx4_en_stats->RdropOvflw);
+ stats->rx_missed_errors = be32_to_cpu(mlx4_en_stats->RdropOvflw);
+ stats->tx_aborted_errors = 0;
+ stats->tx_carrier_errors = 0;
+ stats->tx_fifo_errors = 0;
+ stats->tx_heartbeat_errors = 0;
+ stats->tx_window_errors = 0;
+
+ priv->pkstats.broadcast =
+ be64_to_cpu(mlx4_en_stats->RBCAST_prio_0) +
+ be64_to_cpu(mlx4_en_stats->RBCAST_prio_1) +
+ be64_to_cpu(mlx4_en_stats->RBCAST_prio_2) +
+ be64_to_cpu(mlx4_en_stats->RBCAST_prio_3) +
+ be64_to_cpu(mlx4_en_stats->RBCAST_prio_4) +
+ be64_to_cpu(mlx4_en_stats->RBCAST_prio_5) +
+ be64_to_cpu(mlx4_en_stats->RBCAST_prio_6) +
+ be64_to_cpu(mlx4_en_stats->RBCAST_prio_7) +
+ be64_to_cpu(mlx4_en_stats->RBCAST_novlan);
+ priv->pkstats.rx_prio[0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_0);
+ priv->pkstats.rx_prio[1] = be64_to_cpu(mlx4_en_stats->RTOT_prio_1);
+ priv->pkstats.rx_prio[2] = be64_to_cpu(mlx4_en_stats->RTOT_prio_2);
+ priv->pkstats.rx_prio[3] = be64_to_cpu(mlx4_en_stats->RTOT_prio_3);
+ priv->pkstats.rx_prio[4] = be64_to_cpu(mlx4_en_stats->RTOT_prio_4);
+ priv->pkstats.rx_prio[5] = be64_to_cpu(mlx4_en_stats->RTOT_prio_5);
+ priv->pkstats.rx_prio[6] = be64_to_cpu(mlx4_en_stats->RTOT_prio_6);
+ priv->pkstats.rx_prio[7] = be64_to_cpu(mlx4_en_stats->RTOT_prio_7);
+ priv->pkstats.tx_prio[0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_0);
+ priv->pkstats.tx_prio[1] = be64_to_cpu(mlx4_en_stats->TTOT_prio_1);
+ priv->pkstats.tx_prio[2] = be64_to_cpu(mlx4_en_stats->TTOT_prio_2);
+ priv->pkstats.tx_prio[3] = be64_to_cpu(mlx4_en_stats->TTOT_prio_3);
+ priv->pkstats.tx_prio[4] = be64_to_cpu(mlx4_en_stats->TTOT_prio_4);
+ priv->pkstats.tx_prio[5] = be64_to_cpu(mlx4_en_stats->TTOT_prio_5);
+ priv->pkstats.tx_prio[6] = be64_to_cpu(mlx4_en_stats->TTOT_prio_6);
+ priv->pkstats.tx_prio[7] = be64_to_cpu(mlx4_en_stats->TTOT_prio_7);
+ spin_unlock_bh(&priv->stats_lock);
+
+out:
+ mlx4_free_cmd_mailbox(mdev->dev, mailbox);
+ return err;
+}
+
--- /dev/null
+/*
+ * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#ifndef _MLX4_EN_PORT_H_
+#define _MLX4_EN_PORT_H_
+
+
+#define SET_PORT_GEN_ALL_VALID 0x7
+#define SET_PORT_PROMISC_SHIFT 31
+#define SET_PORT_MC_PROMISC_SHIFT 30
+
+enum {
+ MLX4_CMD_SET_VLAN_FLTR = 0x47,
+ MLX4_CMD_SET_MCAST_FLTR = 0x48,
+ MLX4_CMD_DUMP_ETH_STATS = 0x49,
+};
+
+enum {
+ MCAST_DIRECT_ONLY = 0,
+ MCAST_DIRECT = 1,
+ MCAST_DEFAULT = 2
+};
+
+struct mlx4_set_port_general_context {
+ u8 reserved[3];
+ u8 flags;
+ u16 reserved2;
+ __be16 mtu;
+ u8 pptx;
+ u8 pfctx;
+ u16 reserved3;
+ u8 pprx;
+ u8 pfcrx;
+ u16 reserved4;
+};
+
+struct mlx4_set_port_rqp_calc_context {
+ __be32 base_qpn;
+ u8 rererved;
+ u8 n_mac;
+ u8 n_vlan;
+ u8 n_prio;
+ u8 reserved2[3];
+ u8 mac_miss;
+ u8 intra_no_vlan;
+ u8 no_vlan;
+ u8 intra_vlan_miss;
+ u8 vlan_miss;
+ u8 reserved3[3];
+ u8 no_vlan_prio;
+ __be32 promisc;
+ __be32 mcast;
+};
+
+#define VLAN_FLTR_SIZE 128
+struct mlx4_set_vlan_fltr_mbox {
+ __be32 entry[VLAN_FLTR_SIZE];
+};
+
+
+enum {
+ MLX4_MCAST_CONFIG = 0,
+ MLX4_MCAST_DISABLE = 1,
+ MLX4_MCAST_ENABLE = 2,
+};
+
+struct mlx4_en_query_port_context {
+ u8 link_up;
+#define MLX4_EN_LINK_UP_MASK 0x80
+ u8 reserved;
+ __be16 mtu;
+ u8 reserved2;
+ u8 link_speed;
+#define MLX4_EN_SPEED_MASK 0x3
+#define MLX4_EN_1G_SPEED 0x2
+ u16 reserved3[5];
+ __be64 mac;
+ u8 transceiver;
+};
+
+
+struct mlx4_en_stat_out_mbox {
+ /* Received frames with a length of 64 octets */
+ __be64 R64_prio_0;
+ __be64 R64_prio_1;
+ __be64 R64_prio_2;
+ __be64 R64_prio_3;
+ __be64 R64_prio_4;
+ __be64 R64_prio_5;
+ __be64 R64_prio_6;
+ __be64 R64_prio_7;
+ __be64 R64_novlan;
+ /* Received frames with a length of 127 octets */
+ __be64 R127_prio_0;
+ __be64 R127_prio_1;
+ __be64 R127_prio_2;
+ __be64 R127_prio_3;
+ __be64 R127_prio_4;
+ __be64 R127_prio_5;
+ __be64 R127_prio_6;
+ __be64 R127_prio_7;
+ __be64 R127_novlan;
+ /* Received frames with a length of 255 octets */
+ __be64 R255_prio_0;
+ __be64 R255_prio_1;
+ __be64 R255_prio_2;
+ __be64 R255_prio_3;
+ __be64 R255_prio_4;
+ __be64 R255_prio_5;
+ __be64 R255_prio_6;
+ __be64 R255_prio_7;
+ __be64 R255_novlan;
+ /* Received frames with a length of 511 octets */
+ __be64 R511_prio_0;
+ __be64 R511_prio_1;
+ __be64 R511_prio_2;
+ __be64 R511_prio_3;
+ __be64 R511_prio_4;
+ __be64 R511_prio_5;
+ __be64 R511_prio_6;
+ __be64 R511_prio_7;
+ __be64 R511_novlan;
+ /* Received frames with a length of 1023 octets */
+ __be64 R1023_prio_0;
+ __be64 R1023_prio_1;
+ __be64 R1023_prio_2;
+ __be64 R1023_prio_3;
+ __be64 R1023_prio_4;
+ __be64 R1023_prio_5;
+ __be64 R1023_prio_6;
+ __be64 R1023_prio_7;
+ __be64 R1023_novlan;
+ /* Received frames with a length of 1518 octets */
+ __be64 R1518_prio_0;
+ __be64 R1518_prio_1;
+ __be64 R1518_prio_2;
+ __be64 R1518_prio_3;
+ __be64 R1518_prio_4;
+ __be64 R1518_prio_5;
+ __be64 R1518_prio_6;
+ __be64 R1518_prio_7;
+ __be64 R1518_novlan;
+ /* Received frames with a length of 1522 octets */
+ __be64 R1522_prio_0;
+ __be64 R1522_prio_1;
+ __be64 R1522_prio_2;
+ __be64 R1522_prio_3;
+ __be64 R1522_prio_4;
+ __be64 R1522_prio_5;
+ __be64 R1522_prio_6;
+ __be64 R1522_prio_7;
+ __be64 R1522_novlan;
+ /* Received frames with a length of 1548 octets */
+ __be64 R1548_prio_0;
+ __be64 R1548_prio_1;
+ __be64 R1548_prio_2;
+ __be64 R1548_prio_3;
+ __be64 R1548_prio_4;
+ __be64 R1548_prio_5;
+ __be64 R1548_prio_6;
+ __be64 R1548_prio_7;
+ __be64 R1548_novlan;
+ /* Received frames with a length of 1548 < octets < MTU */
+ __be64 R2MTU_prio_0;
+ __be64 R2MTU_prio_1;
+ __be64 R2MTU_prio_2;
+ __be64 R2MTU_prio_3;
+ __be64 R2MTU_prio_4;
+ __be64 R2MTU_prio_5;
+ __be64 R2MTU_prio_6;
+ __be64 R2MTU_prio_7;
+ __be64 R2MTU_novlan;
+ /* Received frames with a length of MTU< octets and good CRC */
+ __be64 RGIANT_prio_0;
+ __be64 RGIANT_prio_1;
+ __be64 RGIANT_prio_2;
+ __be64 RGIANT_prio_3;
+ __be64 RGIANT_prio_4;
+ __be64 RGIANT_prio_5;
+ __be64 RGIANT_prio_6;
+ __be64 RGIANT_prio_7;
+ __be64 RGIANT_novlan;
+ /* Received broadcast frames with good CRC */
+ __be64 RBCAST_prio_0;
+ __be64 RBCAST_prio_1;
+ __be64 RBCAST_prio_2;
+ __be64 RBCAST_prio_3;
+ __be64 RBCAST_prio_4;
+ __be64 RBCAST_prio_5;
+ __be64 RBCAST_prio_6;
+ __be64 RBCAST_prio_7;
+ __be64 RBCAST_novlan;
+ /* Received multicast frames with good CRC */
+ __be64 MCAST_prio_0;
+ __be64 MCAST_prio_1;
+ __be64 MCAST_prio_2;
+ __be64 MCAST_prio_3;
+ __be64 MCAST_prio_4;
+ __be64 MCAST_prio_5;
+ __be64 MCAST_prio_6;
+ __be64 MCAST_prio_7;
+ __be64 MCAST_novlan;
+ /* Received unicast not short or GIANT frames with good CRC */
+ __be64 RTOTG_prio_0;
+ __be64 RTOTG_prio_1;
+ __be64 RTOTG_prio_2;
+ __be64 RTOTG_prio_3;
+ __be64 RTOTG_prio_4;
+ __be64 RTOTG_prio_5;
+ __be64 RTOTG_prio_6;
+ __be64 RTOTG_prio_7;
+ __be64 RTOTG_novlan;
+
+ /* Count of total octets of received frames, includes framing characters */
+ __be64 RTTLOCT_prio_0;
+ /* Count of total octets of received frames, not including framing
+ characters */
+ __be64 RTTLOCT_NOFRM_prio_0;
+ /* Count of Total number of octets received
+ (only for frames without errors) */
+ __be64 ROCT_prio_0;
+
+ __be64 RTTLOCT_prio_1;
+ __be64 RTTLOCT_NOFRM_prio_1;
+ __be64 ROCT_prio_1;
+
+ __be64 RTTLOCT_prio_2;
+ __be64 RTTLOCT_NOFRM_prio_2;
+ __be64 ROCT_prio_2;
+
+ __be64 RTTLOCT_prio_3;
+ __be64 RTTLOCT_NOFRM_prio_3;
+ __be64 ROCT_prio_3;
+
+ __be64 RTTLOCT_prio_4;
+ __be64 RTTLOCT_NOFRM_prio_4;
+ __be64 ROCT_prio_4;
+
+ __be64 RTTLOCT_prio_5;
+ __be64 RTTLOCT_NOFRM_prio_5;
+ __be64 ROCT_prio_5;
+
+ __be64 RTTLOCT_prio_6;
+ __be64 RTTLOCT_NOFRM_prio_6;
+ __be64 ROCT_prio_6;
+
+ __be64 RTTLOCT_prio_7;
+ __be64 RTTLOCT_NOFRM_prio_7;
+ __be64 ROCT_prio_7;
+
+ __be64 RTTLOCT_novlan;
+ __be64 RTTLOCT_NOFRM_novlan;
+ __be64 ROCT_novlan;
+
+ /* Count of Total received frames including bad frames */
+ __be64 RTOT_prio_0;
+ /* Count of Total number of received frames with 802.1Q encapsulation */
+ __be64 R1Q_prio_0;
+ __be64 reserved1;
+
+ __be64 RTOT_prio_1;
+ __be64 R1Q_prio_1;
+ __be64 reserved2;
+
+ __be64 RTOT_prio_2;
+ __be64 R1Q_prio_2;
+ __be64 reserved3;
+
+ __be64 RTOT_prio_3;
+ __be64 R1Q_prio_3;
+ __be64 reserved4;
+
+ __be64 RTOT_prio_4;
+ __be64 R1Q_prio_4;
+ __be64 reserved5;
+
+ __be64 RTOT_prio_5;
+ __be64 R1Q_prio_5;
+ __be64 reserved6;
+
+ __be64 RTOT_prio_6;
+ __be64 R1Q_prio_6;
+ __be64 reserved7;
+
+ __be64 RTOT_prio_7;
+ __be64 R1Q_prio_7;
+ __be64 reserved8;
+
+ __be64 RTOT_novlan;
+ __be64 R1Q_novlan;
+ __be64 reserved9;
+
+ /* Total number of Successfully Received Control Frames */
+ __be64 RCNTL;
+ __be64 reserved10;
+ __be64 reserved11;
+ __be64 reserved12;
+ /* Count of received frames with a length/type field value between 46
+ (42 for VLANtagged frames) and 1500 (also 1500 for VLAN-tagged frames),
+ inclusive */
+ __be64 RInRangeLengthErr;
+ /* Count of received frames with length/type field between 1501 and 1535
+ decimal, inclusive */
+ __be64 ROutRangeLengthErr;
+ /* Count of received frames that are longer than max allowed size for
+ 802.3 frames (1518/1522) */
+ __be64 RFrmTooLong;
+ /* Count frames received with PCS error */
+ __be64 PCS;
+
+ /* Transmit frames with a length of 64 octets */
+ __be64 T64_prio_0;
+ __be64 T64_prio_1;
+ __be64 T64_prio_2;
+ __be64 T64_prio_3;
+ __be64 T64_prio_4;
+ __be64 T64_prio_5;
+ __be64 T64_prio_6;
+ __be64 T64_prio_7;
+ __be64 T64_novlan;
+ __be64 T64_loopbk;
+ /* Transmit frames with a length of 65 to 127 octets. */
+ __be64 T127_prio_0;
+ __be64 T127_prio_1;
+ __be64 T127_prio_2;
+ __be64 T127_prio_3;
+ __be64 T127_prio_4;
+ __be64 T127_prio_5;
+ __be64 T127_prio_6;
+ __be64 T127_prio_7;
+ __be64 T127_novlan;
+ __be64 T127_loopbk;
+ /* Transmit frames with a length of 128 to 255 octets */
+ __be64 T255_prio_0;
+ __be64 T255_prio_1;
+ __be64 T255_prio_2;
+ __be64 T255_prio_3;
+ __be64 T255_prio_4;
+ __be64 T255_prio_5;
+ __be64 T255_prio_6;
+ __be64 T255_prio_7;
+ __be64 T255_novlan;
+ __be64 T255_loopbk;
+ /* Transmit frames with a length of 256 to 511 octets */
+ __be64 T511_prio_0;
+ __be64 T511_prio_1;
+ __be64 T511_prio_2;
+ __be64 T511_prio_3;
+ __be64 T511_prio_4;
+ __be64 T511_prio_5;
+ __be64 T511_prio_6;
+ __be64 T511_prio_7;
+ __be64 T511_novlan;
+ __be64 T511_loopbk;
+ /* Transmit frames with a length of 512 to 1023 octets */
+ __be64 T1023_prio_0;
+ __be64 T1023_prio_1;
+ __be64 T1023_prio_2;
+ __be64 T1023_prio_3;
+ __be64 T1023_prio_4;
+ __be64 T1023_prio_5;
+ __be64 T1023_prio_6;
+ __be64 T1023_prio_7;
+ __be64 T1023_novlan;
+ __be64 T1023_loopbk;
+ /* Transmit frames with a length of 1024 to 1518 octets */
+ __be64 T1518_prio_0;
+ __be64 T1518_prio_1;
+ __be64 T1518_prio_2;
+ __be64 T1518_prio_3;
+ __be64 T1518_prio_4;
+ __be64 T1518_prio_5;
+ __be64 T1518_prio_6;
+ __be64 T1518_prio_7;
+ __be64 T1518_novlan;
+ __be64 T1518_loopbk;
+ /* Counts transmit frames with a length of 1519 to 1522 bytes */
+ __be64 T1522_prio_0;
+ __be64 T1522_prio_1;
+ __be64 T1522_prio_2;
+ __be64 T1522_prio_3;
+ __be64 T1522_prio_4;
+ __be64 T1522_prio_5;
+ __be64 T1522_prio_6;
+ __be64 T1522_prio_7;
+ __be64 T1522_novlan;
+ __be64 T1522_loopbk;
+ /* Transmit frames with a length of 1523 to 1548 octets */
+ __be64 T1548_prio_0;
+ __be64 T1548_prio_1;
+ __be64 T1548_prio_2;
+ __be64 T1548_prio_3;
+ __be64 T1548_prio_4;
+ __be64 T1548_prio_5;
+ __be64 T1548_prio_6;
+ __be64 T1548_prio_7;
+ __be64 T1548_novlan;
+ __be64 T1548_loopbk;
+ /* Counts transmit frames with a length of 1549 to MTU bytes */
+ __be64 T2MTU_prio_0;
+ __be64 T2MTU_prio_1;
+ __be64 T2MTU_prio_2;
+ __be64 T2MTU_prio_3;
+ __be64 T2MTU_prio_4;
+ __be64 T2MTU_prio_5;
+ __be64 T2MTU_prio_6;
+ __be64 T2MTU_prio_7;
+ __be64 T2MTU_novlan;
+ __be64 T2MTU_loopbk;
+ /* Transmit frames with a length greater than MTU octets and a good CRC. */
+ __be64 TGIANT_prio_0;
+ __be64 TGIANT_prio_1;
+ __be64 TGIANT_prio_2;
+ __be64 TGIANT_prio_3;
+ __be64 TGIANT_prio_4;
+ __be64 TGIANT_prio_5;
+ __be64 TGIANT_prio_6;
+ __be64 TGIANT_prio_7;
+ __be64 TGIANT_novlan;
+ __be64 TGIANT_loopbk;
+ /* Transmit broadcast frames with a good CRC */
+ __be64 TBCAST_prio_0;
+ __be64 TBCAST_prio_1;
+ __be64 TBCAST_prio_2;
+ __be64 TBCAST_prio_3;
+ __be64 TBCAST_prio_4;
+ __be64 TBCAST_prio_5;
+ __be64 TBCAST_prio_6;
+ __be64 TBCAST_prio_7;
+ __be64 TBCAST_novlan;
+ __be64 TBCAST_loopbk;
+ /* Transmit multicast frames with a good CRC */
+ __be64 TMCAST_prio_0;
+ __be64 TMCAST_prio_1;
+ __be64 TMCAST_prio_2;
+ __be64 TMCAST_prio_3;
+ __be64 TMCAST_prio_4;
+ __be64 TMCAST_prio_5;
+ __be64 TMCAST_prio_6;
+ __be64 TMCAST_prio_7;
+ __be64 TMCAST_novlan;
+ __be64 TMCAST_loopbk;
+ /* Transmit good frames that are neither broadcast nor multicast */
+ __be64 TTOTG_prio_0;
+ __be64 TTOTG_prio_1;
+ __be64 TTOTG_prio_2;
+ __be64 TTOTG_prio_3;
+ __be64 TTOTG_prio_4;
+ __be64 TTOTG_prio_5;
+ __be64 TTOTG_prio_6;
+ __be64 TTOTG_prio_7;
+ __be64 TTOTG_novlan;
+ __be64 TTOTG_loopbk;
+
+ /* total octets of transmitted frames, including framing characters */
+ __be64 TTTLOCT_prio_0;
+ /* total octets of transmitted frames, not including framing characters */
+ __be64 TTTLOCT_NOFRM_prio_0;
+ /* ifOutOctets */
+ __be64 TOCT_prio_0;
+
+ __be64 TTTLOCT_prio_1;
+ __be64 TTTLOCT_NOFRM_prio_1;
+ __be64 TOCT_prio_1;
+
+ __be64 TTTLOCT_prio_2;
+ __be64 TTTLOCT_NOFRM_prio_2;
+ __be64 TOCT_prio_2;
+
+ __be64 TTTLOCT_prio_3;
+ __be64 TTTLOCT_NOFRM_prio_3;
+ __be64 TOCT_prio_3;
+
+ __be64 TTTLOCT_prio_4;
+ __be64 TTTLOCT_NOFRM_prio_4;
+ __be64 TOCT_prio_4;
+
+ __be64 TTTLOCT_prio_5;
+ __be64 TTTLOCT_NOFRM_prio_5;
+ __be64 TOCT_prio_5;
+
+ __be64 TTTLOCT_prio_6;
+ __be64 TTTLOCT_NOFRM_prio_6;
+ __be64 TOCT_prio_6;
+
+ __be64 TTTLOCT_prio_7;
+ __be64 TTTLOCT_NOFRM_prio_7;
+ __be64 TOCT_prio_7;
+
+ __be64 TTTLOCT_novlan;
+ __be64 TTTLOCT_NOFRM_novlan;
+ __be64 TOCT_novlan;
+
+ __be64 TTTLOCT_loopbk;
+ __be64 TTTLOCT_NOFRM_loopbk;
+ __be64 TOCT_loopbk;
+
+ /* Total frames transmitted with a good CRC that are not aborted */
+ __be64 TTOT_prio_0;
+ /* Total number of frames transmitted with 802.1Q encapsulation */
+ __be64 T1Q_prio_0;
+ __be64 reserved13;
+
+ __be64 TTOT_prio_1;
+ __be64 T1Q_prio_1;
+ __be64 reserved14;
+
+ __be64 TTOT_prio_2;
+ __be64 T1Q_prio_2;
+ __be64 reserved15;
+
+ __be64 TTOT_prio_3;
+ __be64 T1Q_prio_3;
+ __be64 reserved16;
+
+ __be64 TTOT_prio_4;
+ __be64 T1Q_prio_4;
+ __be64 reserved17;
+
+ __be64 TTOT_prio_5;
+ __be64 T1Q_prio_5;
+ __be64 reserved18;
+
+ __be64 TTOT_prio_6;
+ __be64 T1Q_prio_6;
+ __be64 reserved19;
+
+ __be64 TTOT_prio_7;
+ __be64 T1Q_prio_7;
+ __be64 reserved20;
+
+ __be64 TTOT_novlan;
+ __be64 T1Q_novlan;
+ __be64 reserved21;
+
+ __be64 TTOT_loopbk;
+ __be64 T1Q_loopbk;
+ __be64 reserved22;
+
+ /* Received frames with a length greater than MTU octets and a bad CRC */
+ __be32 RJBBR;
+ /* Received frames with a bad CRC that are not runts, jabbers,
+ or alignment errors */
+ __be32 RCRC;
+ /* Received frames with SFD with a length of less than 64 octets and a
+ bad CRC */
+ __be32 RRUNT;
+ /* Received frames with a length less than 64 octets and a good CRC */
+ __be32 RSHORT;
+ /* Total Number of Received Packets Dropped */
+ __be32 RDROP;
+ /* Drop due to overflow */
+ __be32 RdropOvflw;
+ /* Drop due to overflow */
+ __be32 RdropLength;
+ /* Total of good frames. Does not include frames received with
+ frame-too-long, FCS, or length errors */
+ __be32 RTOTFRMS;
+ /* Total dropped Xmited packets */
+ __be32 TDROP;
+};
+
+
+#endif
--- /dev/null
+/*
+ * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/mlx4/qp.h>
+
+#include "mlx4_en.h"
+
+void mlx4_en_fill_qp_context(struct mlx4_en_priv *priv, int size, int stride,
+ int is_tx, int rss, int qpn, int cqn,
+ struct mlx4_qp_context *context)
+{
+ struct mlx4_en_dev *mdev = priv->mdev;
+
+ memset(context, 0, sizeof *context);
+ context->flags = cpu_to_be32(7 << 16 | rss << 13);
+ context->pd = cpu_to_be32(mdev->priv_pdn);
+ context->mtu_msgmax = 0xff;
+ if (!is_tx && !rss)
+ context->rq_size_stride = ilog2(size) << 3 | (ilog2(stride) - 4);
+ if (is_tx)
+ context->sq_size_stride = ilog2(size) << 3 | (ilog2(stride) - 4);
+ else
+ context->sq_size_stride = ilog2(TXBB_SIZE) - 4;
+ context->usr_page = cpu_to_be32(mdev->priv_uar.index);
+ context->local_qpn = cpu_to_be32(qpn);
+ context->pri_path.ackto = 1 & 0x07;
+ context->pri_path.sched_queue = 0x83 | (priv->port - 1) << 6;
+ context->pri_path.counter_index = 0xff;
+ context->cqn_send = cpu_to_be32(cqn);
+ context->cqn_recv = cpu_to_be32(cqn);
+ context->db_rec_addr = cpu_to_be64(priv->res.db.dma << 2);
+}
+
+
+int mlx4_en_map_buffer(struct mlx4_buf *buf)
+{
+ struct page **pages;
+ int i;
+
+ if (BITS_PER_LONG == 64 || buf->nbufs == 1)
+ return 0;
+
+ pages = kmalloc(sizeof *pages * buf->nbufs, GFP_KERNEL);
+ if (!pages)
+ return -ENOMEM;
+
+ for (i = 0; i < buf->nbufs; ++i)
+ pages[i] = virt_to_page(buf->page_list[i].buf);
+
+ buf->direct.buf = vmap(pages, buf->nbufs, VM_MAP, PAGE_KERNEL);
+ kfree(pages);
+ if (!buf->direct.buf)
+ return -ENOMEM;
+
+ return 0;
+}
+
+void mlx4_en_unmap_buffer(struct mlx4_buf *buf)
+{
+ if (BITS_PER_LONG == 64 || buf->nbufs == 1)
+ return;
+
+ vunmap(buf->direct.buf);
+}
+
+void mlx4_en_sqp_event(struct mlx4_qp *qp, enum mlx4_event event)
+{
+ return;
+}
+
--- /dev/null
+/*
+ * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#include <linux/mlx4/cq.h>
+#include <linux/slab.h>
+#include <linux/mlx4/qp.h>
+#include <linux/skbuff.h>
+#include <linux/if_ether.h>
+#include <linux/if_vlan.h>
+#include <linux/vmalloc.h>
+
+#include "mlx4_en.h"
+
+
+static int mlx4_en_alloc_frag(struct mlx4_en_priv *priv,
+ struct mlx4_en_rx_desc *rx_desc,
+ struct skb_frag_struct *skb_frags,
+ struct mlx4_en_rx_alloc *ring_alloc,
+ int i)
+{
+ struct mlx4_en_dev *mdev = priv->mdev;
+ struct mlx4_en_frag_info *frag_info = &priv->frag_info[i];
+ struct mlx4_en_rx_alloc *page_alloc = &ring_alloc[i];
+ struct page *page;
+ dma_addr_t dma;
+
+ if (page_alloc->offset == frag_info->last_offset) {
+ /* Allocate new page */
+ page = alloc_pages(GFP_ATOMIC | __GFP_COMP, MLX4_EN_ALLOC_ORDER);
+ if (!page)
+ return -ENOMEM;
+
+ skb_frags[i].page = page_alloc->page;
+ skb_frags[i].page_offset = page_alloc->offset;
+ page_alloc->page = page;
+ page_alloc->offset = frag_info->frag_align;
+ } else {
+ page = page_alloc->page;
+ get_page(page);
+
+ skb_frags[i].page = page;
+ skb_frags[i].page_offset = page_alloc->offset;
+ page_alloc->offset += frag_info->frag_stride;
+ }
+ dma = pci_map_single(mdev->pdev, page_address(skb_frags[i].page) +
+ skb_frags[i].page_offset, frag_info->frag_size,
+ PCI_DMA_FROMDEVICE);
+ rx_desc->data[i].addr = cpu_to_be64(dma);
+ return 0;
+}
+
+static int mlx4_en_init_allocator(struct mlx4_en_priv *priv,
+ struct mlx4_en_rx_ring *ring)
+{
+ struct mlx4_en_rx_alloc *page_alloc;
+ int i;
+
+ for (i = 0; i < priv->num_frags; i++) {
+ page_alloc = &ring->page_alloc[i];
+ page_alloc->page = alloc_pages(GFP_ATOMIC | __GFP_COMP,
+ MLX4_EN_ALLOC_ORDER);
+ if (!page_alloc->page)
+ goto out;
+
+ page_alloc->offset = priv->frag_info[i].frag_align;
+ en_dbg(DRV, priv, "Initialized allocator:%d with page:%p\n",
+ i, page_alloc->page);
+ }
+ return 0;
+
+out:
+ while (i--) {
+ page_alloc = &ring->page_alloc[i];
+ put_page(page_alloc->page);
+ page_alloc->page = NULL;
+ }
+ return -ENOMEM;
+}
+
+static void mlx4_en_destroy_allocator(struct mlx4_en_priv *priv,
+ struct mlx4_en_rx_ring *ring)
+{
+ struct mlx4_en_rx_alloc *page_alloc;
+ int i;
+
+ for (i = 0; i < priv->num_frags; i++) {
+ page_alloc = &ring->page_alloc[i];
+ en_dbg(DRV, priv, "Freeing allocator:%d count:%d\n",
+ i, page_count(page_alloc->page));
+
+ put_page(page_alloc->page);
+ page_alloc->page = NULL;
+ }
+}
+
+
+static void mlx4_en_init_rx_desc(struct mlx4_en_priv *priv,
+ struct mlx4_en_rx_ring *ring, int index)
+{
+ struct mlx4_en_rx_desc *rx_desc = ring->buf + ring->stride * index;
+ struct skb_frag_struct *skb_frags = ring->rx_info +
+ (index << priv->log_rx_info);
+ int possible_frags;
+ int i;
+
+ /* Set size and memtype fields */
+ for (i = 0; i < priv->num_frags; i++) {
+ skb_frags[i].size = priv->frag_info[i].frag_size;
+ rx_desc->data[i].byte_count =
+ cpu_to_be32(priv->frag_info[i].frag_size);
+ rx_desc->data[i].lkey = cpu_to_be32(priv->mdev->mr.key);
+ }
+
+ /* If the number of used fragments does not fill up the ring stride,
+ * remaining (unused) fragments must be padded with null address/size
+ * and a special memory key */
+ possible_frags = (ring->stride - sizeof(struct mlx4_en_rx_desc)) / DS_SIZE;
+ for (i = priv->num_frags; i < possible_frags; i++) {
+ rx_desc->data[i].byte_count = 0;
+ rx_desc->data[i].lkey = cpu_to_be32(MLX4_EN_MEMTYPE_PAD);
+ rx_desc->data[i].addr = 0;
+ }
+}
+
+
+static int mlx4_en_prepare_rx_desc(struct mlx4_en_priv *priv,
+ struct mlx4_en_rx_ring *ring, int index)
+{
+ struct mlx4_en_rx_desc *rx_desc = ring->buf + (index * ring->stride);
+ struct skb_frag_struct *skb_frags = ring->rx_info +
+ (index << priv->log_rx_info);
+ int i;
+
+ for (i = 0; i < priv->num_frags; i++)
+ if (mlx4_en_alloc_frag(priv, rx_desc, skb_frags, ring->page_alloc, i))
+ goto err;
+
+ return 0;
+
+err:
+ while (i--)
+ put_page(skb_frags[i].page);
+ return -ENOMEM;
+}
+
+static inline void mlx4_en_update_rx_prod_db(struct mlx4_en_rx_ring *ring)
+{
+ *ring->wqres.db.db = cpu_to_be32(ring->prod & 0xffff);
+}
+
+static void mlx4_en_free_rx_desc(struct mlx4_en_priv *priv,
+ struct mlx4_en_rx_ring *ring,
+ int index)
+{
+ struct mlx4_en_dev *mdev = priv->mdev;
+ struct skb_frag_struct *skb_frags;
+ struct mlx4_en_rx_desc *rx_desc = ring->buf + (index << ring->log_stride);
+ dma_addr_t dma;
+ int nr;
+
+ skb_frags = ring->rx_info + (index << priv->log_rx_info);
+ for (nr = 0; nr < priv->num_frags; nr++) {
+ en_dbg(DRV, priv, "Freeing fragment:%d\n", nr);
+ dma = be64_to_cpu(rx_desc->data[nr].addr);
+
+ en_dbg(DRV, priv, "Unmapping buffer at dma:0x%llx\n", (u64) dma);
+ pci_unmap_single(mdev->pdev, dma, skb_frags[nr].size,
+ PCI_DMA_FROMDEVICE);
+ put_page(skb_frags[nr].page);
+ }
+}
+
+static int mlx4_en_fill_rx_buffers(struct mlx4_en_priv *priv)
+{
+ struct mlx4_en_rx_ring *ring;
+ int ring_ind;
+ int buf_ind;
+ int new_size;
+
+ for (buf_ind = 0; buf_ind < priv->prof->rx_ring_size; buf_ind++) {
+ for (ring_ind = 0; ring_ind < priv->rx_ring_num; ring_ind++) {
+ ring = &priv->rx_ring[ring_ind];
+
+ if (mlx4_en_prepare_rx_desc(priv, ring,
+ ring->actual_size)) {
+ if (ring->actual_size < MLX4_EN_MIN_RX_SIZE) {
+ en_err(priv, "Failed to allocate "
+ "enough rx buffers\n");
+ return -ENOMEM;
+ } else {
+ new_size = rounddown_pow_of_two(ring->actual_size);
+ en_warn(priv, "Only %d buffers allocated "
+ "reducing ring size to %d",
+ ring->actual_size, new_size);
+ goto reduce_rings;
+ }
+ }
+ ring->actual_size++;
+ ring->prod++;
+ }
+ }
+ return 0;
+
+reduce_rings:
+ for (ring_ind = 0; ring_ind < priv->rx_ring_num; ring_ind++) {
+ ring = &priv->rx_ring[ring_ind];
+ while (ring->actual_size > new_size) {
+ ring->actual_size--;
+ ring->prod--;
+ mlx4_en_free_rx_desc(priv, ring, ring->actual_size);
+ }
+ }
+
+ return 0;
+}
+
+static void mlx4_en_free_rx_buf(struct mlx4_en_priv *priv,
+ struct mlx4_en_rx_ring *ring)
+{
+ int index;
+
+ en_dbg(DRV, priv, "Freeing Rx buf - cons:%d prod:%d\n",
+ ring->cons, ring->prod);
+
+ /* Unmap and free Rx buffers */
+ BUG_ON((u32) (ring->prod - ring->cons) > ring->actual_size);
+ while (ring->cons != ring->prod) {
+ index = ring->cons & ring->size_mask;
+ en_dbg(DRV, priv, "Processing descriptor:%d\n", index);
+ mlx4_en_free_rx_desc(priv, ring, index);
+ ++ring->cons;
+ }
+}
+
+int mlx4_en_create_rx_ring(struct mlx4_en_priv *priv,
+ struct mlx4_en_rx_ring *ring, u32 size, u16 stride)
+{
+ struct mlx4_en_dev *mdev = priv->mdev;
+ int err;
+ int tmp;
+
+
+ ring->prod = 0;
+ ring->cons = 0;
+ ring->size = size;
+ ring->size_mask = size - 1;
+ ring->stride = stride;
+ ring->log_stride = ffs(ring->stride) - 1;
+ ring->buf_size = ring->size * ring->stride + TXBB_SIZE;
+
+ tmp = size * roundup_pow_of_two(MLX4_EN_MAX_RX_FRAGS *
+ sizeof(struct skb_frag_struct));
+ ring->rx_info = vmalloc(tmp);
+ if (!ring->rx_info) {
+ en_err(priv, "Failed allocating rx_info ring\n");
+ return -ENOMEM;
+ }
+ en_dbg(DRV, priv, "Allocated rx_info ring at addr:%p size:%d\n",
+ ring->rx_info, tmp);
+
+ err = mlx4_alloc_hwq_res(mdev->dev, &ring->wqres,
+ ring->buf_size, 2 * PAGE_SIZE);
+ if (err)
+ goto err_ring;
+
+ err = mlx4_en_map_buffer(&ring->wqres.buf);
+ if (err) {
+ en_err(priv, "Failed to map RX buffer\n");
+ goto err_hwq;
+ }
+ ring->buf = ring->wqres.buf.direct.buf;
+
+ return 0;
+
+err_hwq:
+ mlx4_free_hwq_res(mdev->dev, &ring->wqres, ring->buf_size);
+err_ring:
+ vfree(ring->rx_info);
+ ring->rx_info = NULL;
+ return err;
+}
+
+int mlx4_en_activate_rx_rings(struct mlx4_en_priv *priv)
+{
+ struct mlx4_en_rx_ring *ring;
+ int i;
+ int ring_ind;
+ int err;
+ int stride = roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc) +
+ DS_SIZE * priv->num_frags);
+
+ for (ring_ind = 0; ring_ind < priv->rx_ring_num; ring_ind++) {
+ ring = &priv->rx_ring[ring_ind];
+
+ ring->prod = 0;
+ ring->cons = 0;
+ ring->actual_size = 0;
+ ring->cqn = priv->rx_cq[ring_ind].mcq.cqn;
+
+ ring->stride = stride;
+ if (ring->stride <= TXBB_SIZE)
+ ring->buf += TXBB_SIZE;
+
+ ring->log_stride = ffs(ring->stride) - 1;
+ ring->buf_size = ring->size * ring->stride;
+
+ memset(ring->buf, 0, ring->buf_size);
+ mlx4_en_update_rx_prod_db(ring);
+
+ /* Initailize all descriptors */
+ for (i = 0; i < ring->size; i++)
+ mlx4_en_init_rx_desc(priv, ring, i);
+
+ /* Initialize page allocators */
+ err = mlx4_en_init_allocator(priv, ring);
+ if (err) {
+ en_err(priv, "Failed initializing ring allocator\n");
+ if (ring->stride <= TXBB_SIZE)
+ ring->buf -= TXBB_SIZE;
+ ring_ind--;
+ goto err_allocator;
+ }
+ }
+ err = mlx4_en_fill_rx_buffers(priv);
+ if (err)
+ goto err_buffers;
+
+ for (ring_ind = 0; ring_ind < priv->rx_ring_num; ring_ind++) {
+ ring = &priv->rx_ring[ring_ind];
+
+ ring->size_mask = ring->actual_size - 1;
+ mlx4_en_update_rx_prod_db(ring);
+ }
+
+ return 0;
+
+err_buffers:
+ for (ring_ind = 0; ring_ind < priv->rx_ring_num; ring_ind++)
+ mlx4_en_free_rx_buf(priv, &priv->rx_ring[ring_ind]);
+
+ ring_ind = priv->rx_ring_num - 1;
+err_allocator:
+ while (ring_ind >= 0) {
+ if (priv->rx_ring[ring_ind].stride <= TXBB_SIZE)
+ priv->rx_ring[ring_ind].buf -= TXBB_SIZE;
+ mlx4_en_destroy_allocator(priv, &priv->rx_ring[ring_ind]);
+ ring_ind--;
+ }
+ return err;
+}
+
+void mlx4_en_destroy_rx_ring(struct mlx4_en_priv *priv,
+ struct mlx4_en_rx_ring *ring)
+{
+ struct mlx4_en_dev *mdev = priv->mdev;
+
+ mlx4_en_unmap_buffer(&ring->wqres.buf);
+ mlx4_free_hwq_res(mdev->dev, &ring->wqres, ring->buf_size + TXBB_SIZE);
+ vfree(ring->rx_info);
+ ring->rx_info = NULL;
+}
+
+void mlx4_en_deactivate_rx_ring(struct mlx4_en_priv *priv,
+ struct mlx4_en_rx_ring *ring)
+{
+ mlx4_en_free_rx_buf(priv, ring);
+ if (ring->stride <= TXBB_SIZE)
+ ring->buf -= TXBB_SIZE;
+ mlx4_en_destroy_allocator(priv, ring);
+}
+
+
+/* Unmap a completed descriptor and free unused pages */
+static int mlx4_en_complete_rx_desc(struct mlx4_en_priv *priv,
+ struct mlx4_en_rx_desc *rx_desc,
+ struct skb_frag_struct *skb_frags,
+ struct skb_frag_struct *skb_frags_rx,
+ struct mlx4_en_rx_alloc *page_alloc,
+ int length)
+{
+ struct mlx4_en_dev *mdev = priv->mdev;
+ struct mlx4_en_frag_info *frag_info;
+ int nr;
+ dma_addr_t dma;
+
+ /* Collect used fragments while replacing them in the HW descirptors */
+ for (nr = 0; nr < priv->num_frags; nr++) {
+ frag_info = &priv->frag_info[nr];
+ if (length <= frag_info->frag_prefix_size)
+ break;
+
+ /* Save page reference in skb */
+ skb_frags_rx[nr].page = skb_frags[nr].page;
+ skb_frags_rx[nr].size = skb_frags[nr].size;
+ skb_frags_rx[nr].page_offset = skb_frags[nr].page_offset;
+ dma = be64_to_cpu(rx_desc->data[nr].addr);
+
+ /* Allocate a replacement page */
+ if (mlx4_en_alloc_frag(priv, rx_desc, skb_frags, page_alloc, nr))
+ goto fail;
+
+ /* Unmap buffer */
+ pci_unmap_single(mdev->pdev, dma, skb_frags_rx[nr].size,
+ PCI_DMA_FROMDEVICE);
+ }
+ /* Adjust size of last fragment to match actual length */
+ if (nr > 0)
+ skb_frags_rx[nr - 1].size = length -
+ priv->frag_info[nr - 1].frag_prefix_size;
+ return nr;
+
+fail:
+ /* Drop all accumulated fragments (which have already been replaced in
+ * the descriptor) of this packet; remaining fragments are reused... */
+ while (nr > 0) {
+ nr--;
+ put_page(skb_frags_rx[nr].page);
+ }
+ return 0;
+}
+
+
+static struct sk_buff *mlx4_en_rx_skb(struct mlx4_en_priv *priv,
+ struct mlx4_en_rx_desc *rx_desc,
+ struct skb_frag_struct *skb_frags,
+ struct mlx4_en_rx_alloc *page_alloc,
+ unsigned int length)
+{
+ struct mlx4_en_dev *mdev = priv->mdev;
+ struct sk_buff *skb;
+ void *va;
+ int used_frags;
+ dma_addr_t dma;
+
+ skb = dev_alloc_skb(SMALL_PACKET_SIZE + NET_IP_ALIGN);
+ if (!skb) {
+ en_dbg(RX_ERR, priv, "Failed allocating skb\n");
+ return NULL;
+ }
+ skb->dev = priv->dev;
+ skb_reserve(skb, NET_IP_ALIGN);
+ skb->len = length;
+ skb->truesize = length + sizeof(struct sk_buff);
+
+ /* Get pointer to first fragment so we could copy the headers into the
+ * (linear part of the) skb */
+ va = page_address(skb_frags[0].page) + skb_frags[0].page_offset;
+
+ if (length <= SMALL_PACKET_SIZE) {
+ /* We are copying all relevant data to the skb - temporarily
+ * synch buffers for the copy */
+ dma = be64_to_cpu(rx_desc->data[0].addr);
+ dma_sync_single_for_cpu(&mdev->pdev->dev, dma, length,
+ DMA_FROM_DEVICE);
+ skb_copy_to_linear_data(skb, va, length);
+ dma_sync_single_for_device(&mdev->pdev->dev, dma, length,
+ DMA_FROM_DEVICE);
+ skb->tail += length;
+ } else {
+
+ /* Move relevant fragments to skb */
+ used_frags = mlx4_en_complete_rx_desc(priv, rx_desc, skb_frags,
+ skb_shinfo(skb)->frags,
+ page_alloc, length);
+ if (unlikely(!used_frags)) {
+ kfree_skb(skb);
+ return NULL;
+ }
+ skb_shinfo(skb)->nr_frags = used_frags;
+
+ /* Copy headers into the skb linear buffer */
+ memcpy(skb->data, va, HEADER_COPY_SIZE);
+ skb->tail += HEADER_COPY_SIZE;
+
+ /* Skip headers in first fragment */
+ skb_shinfo(skb)->frags[0].page_offset += HEADER_COPY_SIZE;
+
+ /* Adjust size of first fragment */
+ skb_shinfo(skb)->frags[0].size -= HEADER_COPY_SIZE;
+ skb->data_len = length - HEADER_COPY_SIZE;
+ }
+ return skb;
+}
+
+static void validate_loopback(struct mlx4_en_priv *priv, struct sk_buff *skb)
+{
+ int i;
+ int offset = ETH_HLEN;
+
+ for (i = 0; i < MLX4_LOOPBACK_TEST_PAYLOAD; i++, offset++) {
+ if (*(skb->data + offset) != (unsigned char) (i & 0xff))
+ goto out_loopback;
+ }
+ /* Loopback found */
+ priv->loopback_ok = 1;
+
+out_loopback:
+ dev_kfree_skb_any(skb);
+}
+
+int mlx4_en_process_rx_cq(struct net_device *dev, struct mlx4_en_cq *cq, int budget)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+ struct mlx4_cqe *cqe;
+ struct mlx4_en_rx_ring *ring = &priv->rx_ring[cq->ring];
+ struct skb_frag_struct *skb_frags;
+ struct mlx4_en_rx_desc *rx_desc;
+ struct sk_buff *skb;
+ int index;
+ int nr;
+ unsigned int length;
+ int polled = 0;
+ int ip_summed;
+
+ if (!priv->port_up)
+ return 0;
+
+ /* We assume a 1:1 mapping between CQEs and Rx descriptors, so Rx
+ * descriptor offset can be deduced from the CQE index instead of
+ * reading 'cqe->index' */
+ index = cq->mcq.cons_index & ring->size_mask;
+ cqe = &cq->buf[index];
+
+ /* Process all completed CQEs */
+ while (XNOR(cqe->owner_sr_opcode & MLX4_CQE_OWNER_MASK,
+ cq->mcq.cons_index & cq->size)) {
+
+ skb_frags = ring->rx_info + (index << priv->log_rx_info);
+ rx_desc = ring->buf + (index << ring->log_stride);
+
+ /*
+ * make sure we read the CQE after we read the ownership bit
+ */
+ rmb();
+
+ /* Drop packet on bad receive or bad checksum */
+ if (unlikely((cqe->owner_sr_opcode & MLX4_CQE_OPCODE_MASK) ==
+ MLX4_CQE_OPCODE_ERROR)) {
+ en_err(priv, "CQE completed in error - vendor "
+ "syndrom:%d syndrom:%d\n",
+ ((struct mlx4_err_cqe *) cqe)->vendor_err_syndrome,
+ ((struct mlx4_err_cqe *) cqe)->syndrome);
+ goto next;
+ }
+ if (unlikely(cqe->badfcs_enc & MLX4_CQE_BAD_FCS)) {
+ en_dbg(RX_ERR, priv, "Accepted frame with bad FCS\n");
+ goto next;
+ }
+
+ /*
+ * Packet is OK - process it.
+ */
+ length = be32_to_cpu(cqe->byte_cnt);
+ ring->bytes += length;
+ ring->packets++;
+
+ if (likely(dev->features & NETIF_F_RXCSUM)) {
+ if ((cqe->status & cpu_to_be16(MLX4_CQE_STATUS_IPOK)) &&
+ (cqe->checksum == cpu_to_be16(0xffff))) {
+ priv->port_stats.rx_chksum_good++;
+ /* This packet is eligible for LRO if it is:
+ * - DIX Ethernet (type interpretation)
+ * - TCP/IP (v4)
+ * - without IP options
+ * - not an IP fragment */
+ if (dev->features & NETIF_F_GRO) {
+ struct sk_buff *gro_skb = napi_get_frags(&cq->napi);
+ if (!gro_skb)
+ goto next;
+
+ nr = mlx4_en_complete_rx_desc(
+ priv, rx_desc,
+ skb_frags, skb_shinfo(gro_skb)->frags,
+ ring->page_alloc, length);
+ if (!nr)
+ goto next;
+
+ skb_shinfo(gro_skb)->nr_frags = nr;
+ gro_skb->len = length;
+ gro_skb->data_len = length;
+ gro_skb->truesize += length;
+ gro_skb->ip_summed = CHECKSUM_UNNECESSARY;
+
+ if (cqe->vlan_my_qpn &
+ cpu_to_be32(MLX4_CQE_VLAN_PRESENT_MASK)) {
+ u16 vid = be16_to_cpu(cqe->sl_vid);
+
+ __vlan_hwaccel_put_tag(gro_skb, vid);
+ }
+
+ napi_gro_frags(&cq->napi);
+
+ goto next;
+ }
+
+ /* LRO not possible, complete processing here */
+ ip_summed = CHECKSUM_UNNECESSARY;
+ } else {
+ ip_summed = CHECKSUM_NONE;
+ priv->port_stats.rx_chksum_none++;
+ }
+ } else {
+ ip_summed = CHECKSUM_NONE;
+ priv->port_stats.rx_chksum_none++;
+ }
+
+ skb = mlx4_en_rx_skb(priv, rx_desc, skb_frags,
+ ring->page_alloc, length);
+ if (!skb) {
+ priv->stats.rx_dropped++;
+ goto next;
+ }
+
+ if (unlikely(priv->validate_loopback)) {
+ validate_loopback(priv, skb);
+ goto next;
+ }
+
+ skb->ip_summed = ip_summed;
+ skb->protocol = eth_type_trans(skb, dev);
+ skb_record_rx_queue(skb, cq->ring);
+
+ if (be32_to_cpu(cqe->vlan_my_qpn) &
+ MLX4_CQE_VLAN_PRESENT_MASK)
+ __vlan_hwaccel_put_tag(skb, be16_to_cpu(cqe->sl_vid));
+
+ /* Push it up the stack */
+ netif_receive_skb(skb);
+
+next:
+ ++cq->mcq.cons_index;
+ index = (cq->mcq.cons_index) & ring->size_mask;
+ cqe = &cq->buf[index];
+ if (++polled == budget) {
+ /* We are here because we reached the NAPI budget -
+ * flush only pending LRO sessions */
+ goto out;
+ }
+ }
+
+out:
+ AVG_PERF_COUNTER(priv->pstats.rx_coal_avg, polled);
+ mlx4_cq_set_ci(&cq->mcq);
+ wmb(); /* ensure HW sees CQ consumer before we post new buffers */
+ ring->cons = cq->mcq.cons_index;
+ ring->prod += polled; /* Polled descriptors were realocated in place */
+ mlx4_en_update_rx_prod_db(ring);
+ return polled;
+}
+
+
+void mlx4_en_rx_irq(struct mlx4_cq *mcq)
+{
+ struct mlx4_en_cq *cq = container_of(mcq, struct mlx4_en_cq, mcq);
+ struct mlx4_en_priv *priv = netdev_priv(cq->dev);
+
+ if (priv->port_up)
+ napi_schedule(&cq->napi);
+ else
+ mlx4_en_arm_cq(priv, cq);
+}
+
+/* Rx CQ polling - called by NAPI */
+int mlx4_en_poll_rx_cq(struct napi_struct *napi, int budget)
+{
+ struct mlx4_en_cq *cq = container_of(napi, struct mlx4_en_cq, napi);
+ struct net_device *dev = cq->dev;
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+ int done;
+
+ done = mlx4_en_process_rx_cq(dev, cq, budget);
+
+ /* If we used up all the quota - we're probably not done yet... */
+ if (done == budget)
+ INC_PERF_COUNTER(priv->pstats.napi_quota);
+ else {
+ /* Done for now */
+ napi_complete(napi);
+ mlx4_en_arm_cq(priv, cq);
+ }
+ return done;
+}
+
+
+/* Calculate the last offset position that accommodates a full fragment
+ * (assuming fagment size = stride-align) */
+static int mlx4_en_last_alloc_offset(struct mlx4_en_priv *priv, u16 stride, u16 align)
+{
+ u16 res = MLX4_EN_ALLOC_SIZE % stride;
+ u16 offset = MLX4_EN_ALLOC_SIZE - stride - res + align;
+
+ en_dbg(DRV, priv, "Calculated last offset for stride:%d align:%d "
+ "res:%d offset:%d\n", stride, align, res, offset);
+ return offset;
+}
+
+
+static int frag_sizes[] = {
+ FRAG_SZ0,
+ FRAG_SZ1,
+ FRAG_SZ2,
+ FRAG_SZ3
+};
+
+void mlx4_en_calc_rx_buf(struct net_device *dev)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+ int eff_mtu = dev->mtu + ETH_HLEN + VLAN_HLEN + ETH_LLC_SNAP_SIZE;
+ int buf_size = 0;
+ int i = 0;
+
+ while (buf_size < eff_mtu) {
+ priv->frag_info[i].frag_size =
+ (eff_mtu > buf_size + frag_sizes[i]) ?
+ frag_sizes[i] : eff_mtu - buf_size;
+ priv->frag_info[i].frag_prefix_size = buf_size;
+ if (!i) {
+ priv->frag_info[i].frag_align = NET_IP_ALIGN;
+ priv->frag_info[i].frag_stride =
+ ALIGN(frag_sizes[i] + NET_IP_ALIGN, SMP_CACHE_BYTES);
+ } else {
+ priv->frag_info[i].frag_align = 0;
+ priv->frag_info[i].frag_stride =
+ ALIGN(frag_sizes[i], SMP_CACHE_BYTES);
+ }
+ priv->frag_info[i].last_offset = mlx4_en_last_alloc_offset(
+ priv, priv->frag_info[i].frag_stride,
+ priv->frag_info[i].frag_align);
+ buf_size += priv->frag_info[i].frag_size;
+ i++;
+ }
+
+ priv->num_frags = i;
+ priv->rx_skb_size = eff_mtu;
+ priv->log_rx_info = ROUNDUP_LOG2(i * sizeof(struct skb_frag_struct));
+
+ en_dbg(DRV, priv, "Rx buffer scatter-list (effective-mtu:%d "
+ "num_frags:%d):\n", eff_mtu, priv->num_frags);
+ for (i = 0; i < priv->num_frags; i++) {
+ en_dbg(DRV, priv, " frag:%d - size:%d prefix:%d align:%d "
+ "stride:%d last_offset:%d\n", i,
+ priv->frag_info[i].frag_size,
+ priv->frag_info[i].frag_prefix_size,
+ priv->frag_info[i].frag_align,
+ priv->frag_info[i].frag_stride,
+ priv->frag_info[i].last_offset);
+ }
+}
+
+/* RSS related functions */
+
+static int mlx4_en_config_rss_qp(struct mlx4_en_priv *priv, int qpn,
+ struct mlx4_en_rx_ring *ring,
+ enum mlx4_qp_state *state,
+ struct mlx4_qp *qp)
+{
+ struct mlx4_en_dev *mdev = priv->mdev;
+ struct mlx4_qp_context *context;
+ int err = 0;
+
+ context = kmalloc(sizeof *context , GFP_KERNEL);
+ if (!context) {
+ en_err(priv, "Failed to allocate qp context\n");
+ return -ENOMEM;
+ }
+
+ err = mlx4_qp_alloc(mdev->dev, qpn, qp);
+ if (err) {
+ en_err(priv, "Failed to allocate qp #%x\n", qpn);
+ goto out;
+ }
+ qp->event = mlx4_en_sqp_event;
+
+ memset(context, 0, sizeof *context);
+ mlx4_en_fill_qp_context(priv, ring->actual_size, ring->stride, 0, 0,
+ qpn, ring->cqn, context);
+ context->db_rec_addr = cpu_to_be64(ring->wqres.db.dma);
+
+ err = mlx4_qp_to_ready(mdev->dev, &ring->wqres.mtt, context, qp, state);
+ if (err) {
+ mlx4_qp_remove(mdev->dev, qp);
+ mlx4_qp_free(mdev->dev, qp);
+ }
+ mlx4_en_update_rx_prod_db(ring);
+out:
+ kfree(context);
+ return err;
+}
+
+/* Allocate rx qp's and configure them according to rss map */
+int mlx4_en_config_rss_steer(struct mlx4_en_priv *priv)
+{
+ struct mlx4_en_dev *mdev = priv->mdev;
+ struct mlx4_en_rss_map *rss_map = &priv->rss_map;
+ struct mlx4_qp_context context;
+ struct mlx4_en_rss_context *rss_context;
+ void *ptr;
+ u8 rss_mask = 0x3f;
+ int i, qpn;
+ int err = 0;
+ int good_qps = 0;
+
+ en_dbg(DRV, priv, "Configuring rss steering\n");
+ err = mlx4_qp_reserve_range(mdev->dev, priv->rx_ring_num,
+ priv->rx_ring_num,
+ &rss_map->base_qpn);
+ if (err) {
+ en_err(priv, "Failed reserving %d qps\n", priv->rx_ring_num);
+ return err;
+ }
+
+ for (i = 0; i < priv->rx_ring_num; i++) {
+ qpn = rss_map->base_qpn + i;
+ err = mlx4_en_config_rss_qp(priv, qpn, &priv->rx_ring[i],
+ &rss_map->state[i],
+ &rss_map->qps[i]);
+ if (err)
+ goto rss_err;
+
+ ++good_qps;
+ }
+
+ /* Configure RSS indirection qp */
+ err = mlx4_qp_alloc(mdev->dev, priv->base_qpn, &rss_map->indir_qp);
+ if (err) {
+ en_err(priv, "Failed to allocate RSS indirection QP\n");
+ goto rss_err;
+ }
+ rss_map->indir_qp.event = mlx4_en_sqp_event;
+ mlx4_en_fill_qp_context(priv, 0, 0, 0, 1, priv->base_qpn,
+ priv->rx_ring[0].cqn, &context);
+
+ ptr = ((void *) &context) + 0x3c;
+ rss_context = ptr;
+ rss_context->base_qpn = cpu_to_be32(ilog2(priv->rx_ring_num) << 24 |
+ (rss_map->base_qpn));
+ rss_context->default_qpn = cpu_to_be32(rss_map->base_qpn);
+ rss_context->flags = rss_mask;
+
+ if (priv->mdev->profile.udp_rss)
+ rss_context->base_qpn_udp = rss_context->default_qpn;
+ err = mlx4_qp_to_ready(mdev->dev, &priv->res.mtt, &context,
+ &rss_map->indir_qp, &rss_map->indir_state);
+ if (err)
+ goto indir_err;
+
+ return 0;
+
+indir_err:
+ mlx4_qp_modify(mdev->dev, NULL, rss_map->indir_state,
+ MLX4_QP_STATE_RST, NULL, 0, 0, &rss_map->indir_qp);
+ mlx4_qp_remove(mdev->dev, &rss_map->indir_qp);
+ mlx4_qp_free(mdev->dev, &rss_map->indir_qp);
+rss_err:
+ for (i = 0; i < good_qps; i++) {
+ mlx4_qp_modify(mdev->dev, NULL, rss_map->state[i],
+ MLX4_QP_STATE_RST, NULL, 0, 0, &rss_map->qps[i]);
+ mlx4_qp_remove(mdev->dev, &rss_map->qps[i]);
+ mlx4_qp_free(mdev->dev, &rss_map->qps[i]);
+ }
+ mlx4_qp_release_range(mdev->dev, rss_map->base_qpn, priv->rx_ring_num);
+ return err;
+}
+
+void mlx4_en_release_rss_steer(struct mlx4_en_priv *priv)
+{
+ struct mlx4_en_dev *mdev = priv->mdev;
+ struct mlx4_en_rss_map *rss_map = &priv->rss_map;
+ int i;
+
+ mlx4_qp_modify(mdev->dev, NULL, rss_map->indir_state,
+ MLX4_QP_STATE_RST, NULL, 0, 0, &rss_map->indir_qp);
+ mlx4_qp_remove(mdev->dev, &rss_map->indir_qp);
+ mlx4_qp_free(mdev->dev, &rss_map->indir_qp);
+
+ for (i = 0; i < priv->rx_ring_num; i++) {
+ mlx4_qp_modify(mdev->dev, NULL, rss_map->state[i],
+ MLX4_QP_STATE_RST, NULL, 0, 0, &rss_map->qps[i]);
+ mlx4_qp_remove(mdev->dev, &rss_map->qps[i]);
+ mlx4_qp_free(mdev->dev, &rss_map->qps[i]);
+ }
+ mlx4_qp_release_range(mdev->dev, rss_map->base_qpn, priv->rx_ring_num);
+}
+
+
+
+
+
--- /dev/null
+/*
+ * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/ethtool.h>
+#include <linux/netdevice.h>
+#include <linux/delay.h>
+#include <linux/mlx4/driver.h>
+
+#include "mlx4_en.h"
+
+
+static int mlx4_en_test_registers(struct mlx4_en_priv *priv)
+{
+ return mlx4_cmd(priv->mdev->dev, 0, 0, 0, MLX4_CMD_HW_HEALTH_CHECK,
+ MLX4_CMD_TIME_CLASS_A);
+}
+
+static int mlx4_en_test_loopback_xmit(struct mlx4_en_priv *priv)
+{
+ struct sk_buff *skb;
+ struct ethhdr *ethh;
+ unsigned char *packet;
+ unsigned int packet_size = MLX4_LOOPBACK_TEST_PAYLOAD;
+ unsigned int i;
+ int err;
+
+
+ /* build the pkt before xmit */
+ skb = netdev_alloc_skb(priv->dev, MLX4_LOOPBACK_TEST_PAYLOAD + ETH_HLEN + NET_IP_ALIGN);
+ if (!skb) {
+ en_err(priv, "-LOOPBACK_TEST_XMIT- failed to create skb for xmit\n");
+ return -ENOMEM;
+ }
+ skb_reserve(skb, NET_IP_ALIGN);
+
+ ethh = (struct ethhdr *)skb_put(skb, sizeof(struct ethhdr));
+ packet = (unsigned char *)skb_put(skb, packet_size);
+ memcpy(ethh->h_dest, priv->dev->dev_addr, ETH_ALEN);
+ memset(ethh->h_source, 0, ETH_ALEN);
+ ethh->h_proto = htons(ETH_P_ARP);
+ skb_set_mac_header(skb, 0);
+ for (i = 0; i < packet_size; ++i) /* fill our packet */
+ packet[i] = (unsigned char)(i & 0xff);
+
+ /* xmit the pkt */
+ err = mlx4_en_xmit(skb, priv->dev);
+ return err;
+}
+
+static int mlx4_en_test_loopback(struct mlx4_en_priv *priv)
+{
+ u32 loopback_ok = 0;
+ int i;
+
+
+ priv->loopback_ok = 0;
+ priv->validate_loopback = 1;
+
+ /* xmit */
+ if (mlx4_en_test_loopback_xmit(priv)) {
+ en_err(priv, "Transmitting loopback packet failed\n");
+ goto mlx4_en_test_loopback_exit;
+ }
+
+ /* polling for result */
+ for (i = 0; i < MLX4_EN_LOOPBACK_RETRIES; ++i) {
+ msleep(MLX4_EN_LOOPBACK_TIMEOUT);
+ if (priv->loopback_ok) {
+ loopback_ok = 1;
+ break;
+ }
+ }
+ if (!loopback_ok)
+ en_err(priv, "Loopback packet didn't arrive\n");
+
+mlx4_en_test_loopback_exit:
+
+ priv->validate_loopback = 0;
+ return !loopback_ok;
+}
+
+
+static int mlx4_en_test_link(struct mlx4_en_priv *priv)
+{
+ if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
+ return -ENOMEM;
+ if (priv->port_state.link_state == 1)
+ return 0;
+ else
+ return 1;
+}
+
+static int mlx4_en_test_speed(struct mlx4_en_priv *priv)
+{
+
+ if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
+ return -ENOMEM;
+
+ /* The device currently only supports 10G speed */
+ if (priv->port_state.link_speed != SPEED_10000)
+ return priv->port_state.link_speed;
+ return 0;
+}
+
+
+void mlx4_en_ex_selftest(struct net_device *dev, u32 *flags, u64 *buf)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+ struct mlx4_en_dev *mdev = priv->mdev;
+ struct mlx4_en_tx_ring *tx_ring;
+ int i, carrier_ok;
+
+ memset(buf, 0, sizeof(u64) * MLX4_EN_NUM_SELF_TEST);
+
+ if (*flags & ETH_TEST_FL_OFFLINE) {
+ /* disable the interface */
+ carrier_ok = netif_carrier_ok(dev);
+
+ netif_carrier_off(dev);
+retry_tx:
+ /* Wait until all tx queues are empty.
+ * there should not be any additional incoming traffic
+ * since we turned the carrier off */
+ msleep(200);
+ for (i = 0; i < priv->tx_ring_num && carrier_ok; i++) {
+ tx_ring = &priv->tx_ring[i];
+ if (tx_ring->prod != (tx_ring->cons + tx_ring->last_nr_txbb))
+ goto retry_tx;
+ }
+
+ if (priv->mdev->dev->caps.flags &
+ MLX4_DEV_CAP_FLAG_UC_LOOPBACK) {
+ buf[3] = mlx4_en_test_registers(priv);
+ buf[4] = mlx4_en_test_loopback(priv);
+ }
+
+ if (carrier_ok)
+ netif_carrier_on(dev);
+
+ }
+ buf[0] = mlx4_test_interrupts(mdev->dev);
+ buf[1] = mlx4_en_test_link(priv);
+ buf[2] = mlx4_en_test_speed(priv);
+
+ for (i = 0; i < MLX4_EN_NUM_SELF_TEST; i++) {
+ if (buf[i])
+ *flags |= ETH_TEST_FL_FAILED;
+ }
+}
--- /dev/null
+/*
+ * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#include <asm/page.h>
+#include <linux/mlx4/cq.h>
+#include <linux/slab.h>
+#include <linux/mlx4/qp.h>
+#include <linux/skbuff.h>
+#include <linux/if_vlan.h>
+#include <linux/vmalloc.h>
+#include <linux/tcp.h>
+
+#include "mlx4_en.h"
+
+enum {
+ MAX_INLINE = 104, /* 128 - 16 - 4 - 4 */
+ MAX_BF = 256,
+};
+
+static int inline_thold __read_mostly = MAX_INLINE;
+
+module_param_named(inline_thold, inline_thold, int, 0444);
+MODULE_PARM_DESC(inline_thold, "threshold for using inline data");
+
+int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv,
+ struct mlx4_en_tx_ring *ring, int qpn, u32 size,
+ u16 stride)
+{
+ struct mlx4_en_dev *mdev = priv->mdev;
+ int tmp;
+ int err;
+
+ ring->size = size;
+ ring->size_mask = size - 1;
+ ring->stride = stride;
+
+ inline_thold = min(inline_thold, MAX_INLINE);
+
+ spin_lock_init(&ring->comp_lock);
+
+ tmp = size * sizeof(struct mlx4_en_tx_info);
+ ring->tx_info = vmalloc(tmp);
+ if (!ring->tx_info) {
+ en_err(priv, "Failed allocating tx_info ring\n");
+ return -ENOMEM;
+ }
+ en_dbg(DRV, priv, "Allocated tx_info ring at addr:%p size:%d\n",
+ ring->tx_info, tmp);
+
+ ring->bounce_buf = kmalloc(MAX_DESC_SIZE, GFP_KERNEL);
+ if (!ring->bounce_buf) {
+ en_err(priv, "Failed allocating bounce buffer\n");
+ err = -ENOMEM;
+ goto err_tx;
+ }
+ ring->buf_size = ALIGN(size * ring->stride, MLX4_EN_PAGE_SIZE);
+
+ err = mlx4_alloc_hwq_res(mdev->dev, &ring->wqres, ring->buf_size,
+ 2 * PAGE_SIZE);
+ if (err) {
+ en_err(priv, "Failed allocating hwq resources\n");
+ goto err_bounce;
+ }
+
+ err = mlx4_en_map_buffer(&ring->wqres.buf);
+ if (err) {
+ en_err(priv, "Failed to map TX buffer\n");
+ goto err_hwq_res;
+ }
+
+ ring->buf = ring->wqres.buf.direct.buf;
+
+ en_dbg(DRV, priv, "Allocated TX ring (addr:%p) - buf:%p size:%d "
+ "buf_size:%d dma:%llx\n", ring, ring->buf, ring->size,
+ ring->buf_size, (unsigned long long) ring->wqres.buf.direct.map);
+
+ ring->qpn = qpn;
+ err = mlx4_qp_alloc(mdev->dev, ring->qpn, &ring->qp);
+ if (err) {
+ en_err(priv, "Failed allocating qp %d\n", ring->qpn);
+ goto err_map;
+ }
+ ring->qp.event = mlx4_en_sqp_event;
+
+ err = mlx4_bf_alloc(mdev->dev, &ring->bf);
+ if (err) {
+ en_dbg(DRV, priv, "working without blueflame (%d)", err);
+ ring->bf.uar = &mdev->priv_uar;
+ ring->bf.uar->map = mdev->uar_map;
+ ring->bf_enabled = false;
+ } else
+ ring->bf_enabled = true;
+
+ return 0;
+
+err_map:
+ mlx4_en_unmap_buffer(&ring->wqres.buf);
+err_hwq_res:
+ mlx4_free_hwq_res(mdev->dev, &ring->wqres, ring->buf_size);
+err_bounce:
+ kfree(ring->bounce_buf);
+ ring->bounce_buf = NULL;
+err_tx:
+ vfree(ring->tx_info);
+ ring->tx_info = NULL;
+ return err;
+}
+
+void mlx4_en_destroy_tx_ring(struct mlx4_en_priv *priv,
+ struct mlx4_en_tx_ring *ring)
+{
+ struct mlx4_en_dev *mdev = priv->mdev;
+ en_dbg(DRV, priv, "Destroying tx ring, qpn: %d\n", ring->qpn);
+
+ if (ring->bf_enabled)
+ mlx4_bf_free(mdev->dev, &ring->bf);
+ mlx4_qp_remove(mdev->dev, &ring->qp);
+ mlx4_qp_free(mdev->dev, &ring->qp);
+ mlx4_qp_release_range(mdev->dev, ring->qpn, 1);
+ mlx4_en_unmap_buffer(&ring->wqres.buf);
+ mlx4_free_hwq_res(mdev->dev, &ring->wqres, ring->buf_size);
+ kfree(ring->bounce_buf);
+ ring->bounce_buf = NULL;
+ vfree(ring->tx_info);
+ ring->tx_info = NULL;
+}
+
+int mlx4_en_activate_tx_ring(struct mlx4_en_priv *priv,
+ struct mlx4_en_tx_ring *ring,
+ int cq)
+{
+ struct mlx4_en_dev *mdev = priv->mdev;
+ int err;
+
+ ring->cqn = cq;
+ ring->prod = 0;
+ ring->cons = 0xffffffff;
+ ring->last_nr_txbb = 1;
+ ring->poll_cnt = 0;
+ ring->blocked = 0;
+ memset(ring->tx_info, 0, ring->size * sizeof(struct mlx4_en_tx_info));
+ memset(ring->buf, 0, ring->buf_size);
+
+ ring->qp_state = MLX4_QP_STATE_RST;
+ ring->doorbell_qpn = swab32(ring->qp.qpn << 8);
+
+ mlx4_en_fill_qp_context(priv, ring->size, ring->stride, 1, 0, ring->qpn,
+ ring->cqn, &ring->context);
+ if (ring->bf_enabled)
+ ring->context.usr_page = cpu_to_be32(ring->bf.uar->index);
+
+ err = mlx4_qp_to_ready(mdev->dev, &ring->wqres.mtt, &ring->context,
+ &ring->qp, &ring->qp_state);
+
+ return err;
+}
+
+void mlx4_en_deactivate_tx_ring(struct mlx4_en_priv *priv,
+ struct mlx4_en_tx_ring *ring)
+{
+ struct mlx4_en_dev *mdev = priv->mdev;
+
+ mlx4_qp_modify(mdev->dev, NULL, ring->qp_state,
+ MLX4_QP_STATE_RST, NULL, 0, 0, &ring->qp);
+}
+
+
+static u32 mlx4_en_free_tx_desc(struct mlx4_en_priv *priv,
+ struct mlx4_en_tx_ring *ring,
+ int index, u8 owner)
+{
+ struct mlx4_en_dev *mdev = priv->mdev;
+ struct mlx4_en_tx_info *tx_info = &ring->tx_info[index];
+ struct mlx4_en_tx_desc *tx_desc = ring->buf + index * TXBB_SIZE;
+ struct mlx4_wqe_data_seg *data = (void *) tx_desc + tx_info->data_offset;
+ struct sk_buff *skb = tx_info->skb;
+ struct skb_frag_struct *frag;
+ void *end = ring->buf + ring->buf_size;
+ int frags = skb_shinfo(skb)->nr_frags;
+ int i;
+ __be32 *ptr = (__be32 *)tx_desc;
+ __be32 stamp = cpu_to_be32(STAMP_VAL | (!!owner << STAMP_SHIFT));
+
+ /* Optimize the common case when there are no wraparounds */
+ if (likely((void *) tx_desc + tx_info->nr_txbb * TXBB_SIZE <= end)) {
+ if (!tx_info->inl) {
+ if (tx_info->linear) {
+ pci_unmap_single(mdev->pdev,
+ (dma_addr_t) be64_to_cpu(data->addr),
+ be32_to_cpu(data->byte_count),
+ PCI_DMA_TODEVICE);
+ ++data;
+ }
+
+ for (i = 0; i < frags; i++) {
+ frag = &skb_shinfo(skb)->frags[i];
+ pci_unmap_page(mdev->pdev,
+ (dma_addr_t) be64_to_cpu(data[i].addr),
+ frag->size, PCI_DMA_TODEVICE);
+ }
+ }
+ /* Stamp the freed descriptor */
+ for (i = 0; i < tx_info->nr_txbb * TXBB_SIZE; i += STAMP_STRIDE) {
+ *ptr = stamp;
+ ptr += STAMP_DWORDS;
+ }
+
+ } else {
+ if (!tx_info->inl) {
+ if ((void *) data >= end) {
+ data = ring->buf + ((void *)data - end);
+ }
+
+ if (tx_info->linear) {
+ pci_unmap_single(mdev->pdev,
+ (dma_addr_t) be64_to_cpu(data->addr),
+ be32_to_cpu(data->byte_count),
+ PCI_DMA_TODEVICE);
+ ++data;
+ }
+
+ for (i = 0; i < frags; i++) {
+ /* Check for wraparound before unmapping */
+ if ((void *) data >= end)
+ data = ring->buf;
+ frag = &skb_shinfo(skb)->frags[i];
+ pci_unmap_page(mdev->pdev,
+ (dma_addr_t) be64_to_cpu(data->addr),
+ frag->size, PCI_DMA_TODEVICE);
+ ++data;
+ }
+ }
+ /* Stamp the freed descriptor */
+ for (i = 0; i < tx_info->nr_txbb * TXBB_SIZE; i += STAMP_STRIDE) {
+ *ptr = stamp;
+ ptr += STAMP_DWORDS;
+ if ((void *) ptr >= end) {
+ ptr = ring->buf;
+ stamp ^= cpu_to_be32(0x80000000);
+ }
+ }
+
+ }
+ dev_kfree_skb_any(skb);
+ return tx_info->nr_txbb;
+}
+
+
+int mlx4_en_free_tx_buf(struct net_device *dev, struct mlx4_en_tx_ring *ring)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+ int cnt = 0;
+
+ /* Skip last polled descriptor */
+ ring->cons += ring->last_nr_txbb;
+ en_dbg(DRV, priv, "Freeing Tx buf - cons:0x%x prod:0x%x\n",
+ ring->cons, ring->prod);
+
+ if ((u32) (ring->prod - ring->cons) > ring->size) {
+ if (netif_msg_tx_err(priv))
+ en_warn(priv, "Tx consumer passed producer!\n");
+ return 0;
+ }
+
+ while (ring->cons != ring->prod) {
+ ring->last_nr_txbb = mlx4_en_free_tx_desc(priv, ring,
+ ring->cons & ring->size_mask,
+ !!(ring->cons & ring->size));
+ ring->cons += ring->last_nr_txbb;
+ cnt++;
+ }
+
+ if (cnt)
+ en_dbg(DRV, priv, "Freed %d uncompleted tx descriptors\n", cnt);
+
+ return cnt;
+}
+
+
+static void mlx4_en_process_tx_cq(struct net_device *dev, struct mlx4_en_cq *cq)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+ struct mlx4_cq *mcq = &cq->mcq;
+ struct mlx4_en_tx_ring *ring = &priv->tx_ring[cq->ring];
+ struct mlx4_cqe *cqe = cq->buf;
+ u16 index;
+ u16 new_index;
+ u32 txbbs_skipped = 0;
+ u32 cq_last_sav;
+
+ /* index always points to the first TXBB of the last polled descriptor */
+ index = ring->cons & ring->size_mask;
+ new_index = be16_to_cpu(cqe->wqe_index) & ring->size_mask;
+ if (index == new_index)
+ return;
+
+ if (!priv->port_up)
+ return;
+
+ /*
+ * We use a two-stage loop:
+ * - the first samples the HW-updated CQE
+ * - the second frees TXBBs until the last sample
+ * This lets us amortize CQE cache misses, while still polling the CQ
+ * until is quiescent.
+ */
+ cq_last_sav = mcq->cons_index;
+ do {
+ do {
+ /* Skip over last polled CQE */
+ index = (index + ring->last_nr_txbb) & ring->size_mask;
+ txbbs_skipped += ring->last_nr_txbb;
+
+ /* Poll next CQE */
+ ring->last_nr_txbb = mlx4_en_free_tx_desc(
+ priv, ring, index,
+ !!((ring->cons + txbbs_skipped) &
+ ring->size));
+ ++mcq->cons_index;
+
+ } while (index != new_index);
+
+ new_index = be16_to_cpu(cqe->wqe_index) & ring->size_mask;
+ } while (index != new_index);
+ AVG_PERF_COUNTER(priv->pstats.tx_coal_avg,
+ (u32) (mcq->cons_index - cq_last_sav));
+
+ /*
+ * To prevent CQ overflow we first update CQ consumer and only then
+ * the ring consumer.
+ */
+ mlx4_cq_set_ci(mcq);
+ wmb();
+ ring->cons += txbbs_skipped;
+
+ /* Wakeup Tx queue if this ring stopped it */
+ if (unlikely(ring->blocked)) {
+ if ((u32) (ring->prod - ring->cons) <=
+ ring->size - HEADROOM - MAX_DESC_TXBBS) {
+ ring->blocked = 0;
+ netif_tx_wake_queue(netdev_get_tx_queue(dev, cq->ring));
+ priv->port_stats.wake_queue++;
+ }
+ }
+}
+
+void mlx4_en_tx_irq(struct mlx4_cq *mcq)
+{
+ struct mlx4_en_cq *cq = container_of(mcq, struct mlx4_en_cq, mcq);
+ struct mlx4_en_priv *priv = netdev_priv(cq->dev);
+ struct mlx4_en_tx_ring *ring = &priv->tx_ring[cq->ring];
+
+ if (!spin_trylock(&ring->comp_lock))
+ return;
+ mlx4_en_process_tx_cq(cq->dev, cq);
+ mod_timer(&cq->timer, jiffies + 1);
+ spin_unlock(&ring->comp_lock);
+}
+
+
+void mlx4_en_poll_tx_cq(unsigned long data)
+{
+ struct mlx4_en_cq *cq = (struct mlx4_en_cq *) data;
+ struct mlx4_en_priv *priv = netdev_priv(cq->dev);
+ struct mlx4_en_tx_ring *ring = &priv->tx_ring[cq->ring];
+ u32 inflight;
+
+ INC_PERF_COUNTER(priv->pstats.tx_poll);
+
+ if (!spin_trylock_irq(&ring->comp_lock)) {
+ mod_timer(&cq->timer, jiffies + MLX4_EN_TX_POLL_TIMEOUT);
+ return;
+ }
+ mlx4_en_process_tx_cq(cq->dev, cq);
+ inflight = (u32) (ring->prod - ring->cons - ring->last_nr_txbb);
+
+ /* If there are still packets in flight and the timer has not already
+ * been scheduled by the Tx routine then schedule it here to guarantee
+ * completion processing of these packets */
+ if (inflight && priv->port_up)
+ mod_timer(&cq->timer, jiffies + MLX4_EN_TX_POLL_TIMEOUT);
+
+ spin_unlock_irq(&ring->comp_lock);
+}
+
+static struct mlx4_en_tx_desc *mlx4_en_bounce_to_desc(struct mlx4_en_priv *priv,
+ struct mlx4_en_tx_ring *ring,
+ u32 index,
+ unsigned int desc_size)
+{
+ u32 copy = (ring->size - index) * TXBB_SIZE;
+ int i;
+
+ for (i = desc_size - copy - 4; i >= 0; i -= 4) {
+ if ((i & (TXBB_SIZE - 1)) == 0)
+ wmb();
+
+ *((u32 *) (ring->buf + i)) =
+ *((u32 *) (ring->bounce_buf + copy + i));
+ }
+
+ for (i = copy - 4; i >= 4 ; i -= 4) {
+ if ((i & (TXBB_SIZE - 1)) == 0)
+ wmb();
+
+ *((u32 *) (ring->buf + index * TXBB_SIZE + i)) =
+ *((u32 *) (ring->bounce_buf + i));
+ }
+
+ /* Return real descriptor location */
+ return ring->buf + index * TXBB_SIZE;
+}
+
+static inline void mlx4_en_xmit_poll(struct mlx4_en_priv *priv, int tx_ind)
+{
+ struct mlx4_en_cq *cq = &priv->tx_cq[tx_ind];
+ struct mlx4_en_tx_ring *ring = &priv->tx_ring[tx_ind];
+ unsigned long flags;
+
+ /* If we don't have a pending timer, set one up to catch our recent
+ post in case the interface becomes idle */
+ if (!timer_pending(&cq->timer))
+ mod_timer(&cq->timer, jiffies + MLX4_EN_TX_POLL_TIMEOUT);
+
+ /* Poll the CQ every mlx4_en_TX_MODER_POLL packets */
+ if ((++ring->poll_cnt & (MLX4_EN_TX_POLL_MODER - 1)) == 0)
+ if (spin_trylock_irqsave(&ring->comp_lock, flags)) {
+ mlx4_en_process_tx_cq(priv->dev, cq);
+ spin_unlock_irqrestore(&ring->comp_lock, flags);
+ }
+}
+
+static void *get_frag_ptr(struct sk_buff *skb)
+{
+ struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[0];
+ struct page *page = frag->page;
+ void *ptr;
+
+ ptr = page_address(page);
+ if (unlikely(!ptr))
+ return NULL;
+
+ return ptr + frag->page_offset;
+}
+
+static int is_inline(struct sk_buff *skb, void **pfrag)
+{
+ void *ptr;
+
+ if (inline_thold && !skb_is_gso(skb) && skb->len <= inline_thold) {
+ if (skb_shinfo(skb)->nr_frags == 1) {
+ ptr = get_frag_ptr(skb);
+ if (unlikely(!ptr))
+ return 0;
+
+ if (pfrag)
+ *pfrag = ptr;
+
+ return 1;
+ } else if (unlikely(skb_shinfo(skb)->nr_frags))
+ return 0;
+ else
+ return 1;
+ }
+
+ return 0;
+}
+
+static int inline_size(struct sk_buff *skb)
+{
+ if (skb->len + CTRL_SIZE + sizeof(struct mlx4_wqe_inline_seg)
+ <= MLX4_INLINE_ALIGN)
+ return ALIGN(skb->len + CTRL_SIZE +
+ sizeof(struct mlx4_wqe_inline_seg), 16);
+ else
+ return ALIGN(skb->len + CTRL_SIZE + 2 *
+ sizeof(struct mlx4_wqe_inline_seg), 16);
+}
+
+static int get_real_size(struct sk_buff *skb, struct net_device *dev,
+ int *lso_header_size)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+ int real_size;
+
+ if (skb_is_gso(skb)) {
+ *lso_header_size = skb_transport_offset(skb) + tcp_hdrlen(skb);
+ real_size = CTRL_SIZE + skb_shinfo(skb)->nr_frags * DS_SIZE +
+ ALIGN(*lso_header_size + 4, DS_SIZE);
+ if (unlikely(*lso_header_size != skb_headlen(skb))) {
+ /* We add a segment for the skb linear buffer only if
+ * it contains data */
+ if (*lso_header_size < skb_headlen(skb))
+ real_size += DS_SIZE;
+ else {
+ if (netif_msg_tx_err(priv))
+ en_warn(priv, "Non-linear headers\n");
+ return 0;
+ }
+ }
+ } else {
+ *lso_header_size = 0;
+ if (!is_inline(skb, NULL))
+ real_size = CTRL_SIZE + (skb_shinfo(skb)->nr_frags + 1) * DS_SIZE;
+ else
+ real_size = inline_size(skb);
+ }
+
+ return real_size;
+}
+
+static void build_inline_wqe(struct mlx4_en_tx_desc *tx_desc, struct sk_buff *skb,
+ int real_size, u16 *vlan_tag, int tx_ind, void *fragptr)
+{
+ struct mlx4_wqe_inline_seg *inl = &tx_desc->inl;
+ int spc = MLX4_INLINE_ALIGN - CTRL_SIZE - sizeof *inl;
+
+ if (skb->len <= spc) {
+ inl->byte_count = cpu_to_be32(1 << 31 | skb->len);
+ skb_copy_from_linear_data(skb, inl + 1, skb_headlen(skb));
+ if (skb_shinfo(skb)->nr_frags)
+ memcpy(((void *)(inl + 1)) + skb_headlen(skb), fragptr,
+ skb_shinfo(skb)->frags[0].size);
+
+ } else {
+ inl->byte_count = cpu_to_be32(1 << 31 | spc);
+ if (skb_headlen(skb) <= spc) {
+ skb_copy_from_linear_data(skb, inl + 1, skb_headlen(skb));
+ if (skb_headlen(skb) < spc) {
+ memcpy(((void *)(inl + 1)) + skb_headlen(skb),
+ fragptr, spc - skb_headlen(skb));
+ fragptr += spc - skb_headlen(skb);
+ }
+ inl = (void *) (inl + 1) + spc;
+ memcpy(((void *)(inl + 1)), fragptr, skb->len - spc);
+ } else {
+ skb_copy_from_linear_data(skb, inl + 1, spc);
+ inl = (void *) (inl + 1) + spc;
+ skb_copy_from_linear_data_offset(skb, spc, inl + 1,
+ skb_headlen(skb) - spc);
+ if (skb_shinfo(skb)->nr_frags)
+ memcpy(((void *)(inl + 1)) + skb_headlen(skb) - spc,
+ fragptr, skb_shinfo(skb)->frags[0].size);
+ }
+
+ wmb();
+ inl->byte_count = cpu_to_be32(1 << 31 | (skb->len - spc));
+ }
+ tx_desc->ctrl.vlan_tag = cpu_to_be16(*vlan_tag);
+ tx_desc->ctrl.ins_vlan = MLX4_WQE_CTRL_INS_VLAN * !!(*vlan_tag);
+ tx_desc->ctrl.fence_size = (real_size / 16) & 0x3f;
+}
+
+u16 mlx4_en_select_queue(struct net_device *dev, struct sk_buff *skb)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+ u16 vlan_tag = 0;
+
+ /* If we support per priority flow control and the packet contains
+ * a vlan tag, send the packet to the TX ring assigned to that priority
+ */
+ if (priv->prof->rx_ppp && vlan_tx_tag_present(skb)) {
+ vlan_tag = vlan_tx_tag_get(skb);
+ return MLX4_EN_NUM_TX_RINGS + (vlan_tag >> 13);
+ }
+
+ return skb_tx_hash(dev, skb);
+}
+
+static void mlx4_bf_copy(unsigned long *dst, unsigned long *src, unsigned bytecnt)
+{
+ __iowrite64_copy(dst, src, bytecnt / 8);
+}
+
+netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct mlx4_en_priv *priv = netdev_priv(dev);
+ struct mlx4_en_dev *mdev = priv->mdev;
+ struct mlx4_en_tx_ring *ring;
+ struct mlx4_en_cq *cq;
+ struct mlx4_en_tx_desc *tx_desc;
+ struct mlx4_wqe_data_seg *data;
+ struct skb_frag_struct *frag;
+ struct mlx4_en_tx_info *tx_info;
+ struct ethhdr *ethh;
+ u64 mac;
+ u32 mac_l, mac_h;
+ int tx_ind = 0;
+ int nr_txbb;
+ int desc_size;
+ int real_size;
+ dma_addr_t dma;
+ u32 index, bf_index;
+ __be32 op_own;
+ u16 vlan_tag = 0;
+ int i;
+ int lso_header_size;
+ void *fragptr;
+ bool bounce = false;
+
+ if (!priv->port_up)
+ goto tx_drop;
+
+ real_size = get_real_size(skb, dev, &lso_header_size);
+ if (unlikely(!real_size))
+ goto tx_drop;
+
+ /* Align descriptor to TXBB size */
+ desc_size = ALIGN(real_size, TXBB_SIZE);
+ nr_txbb = desc_size / TXBB_SIZE;
+ if (unlikely(nr_txbb > MAX_DESC_TXBBS)) {
+ if (netif_msg_tx_err(priv))
+ en_warn(priv, "Oversized header or SG list\n");
+ goto tx_drop;
+ }
+
+ tx_ind = skb->queue_mapping;
+ ring = &priv->tx_ring[tx_ind];
+ if (vlan_tx_tag_present(skb))
+ vlan_tag = vlan_tx_tag_get(skb);
+
+ /* Check available TXBBs And 2K spare for prefetch */
+ if (unlikely(((int)(ring->prod - ring->cons)) >
+ ring->size - HEADROOM - MAX_DESC_TXBBS)) {
+ /* every full Tx ring stops queue */
+ netif_tx_stop_queue(netdev_get_tx_queue(dev, tx_ind));
+ ring->blocked = 1;
+ priv->port_stats.queue_stopped++;
+
+ /* Use interrupts to find out when queue opened */
+ cq = &priv->tx_cq[tx_ind];
+ mlx4_en_arm_cq(priv, cq);
+ return NETDEV_TX_BUSY;
+ }
+
+ /* Track current inflight packets for performance analysis */
+ AVG_PERF_COUNTER(priv->pstats.inflight_avg,
+ (u32) (ring->prod - ring->cons - 1));
+
+ /* Packet is good - grab an index and transmit it */
+ index = ring->prod & ring->size_mask;
+ bf_index = ring->prod;
+
+ /* See if we have enough space for whole descriptor TXBB for setting
+ * SW ownership on next descriptor; if not, use a bounce buffer. */
+ if (likely(index + nr_txbb <= ring->size))
+ tx_desc = ring->buf + index * TXBB_SIZE;
+ else {
+ tx_desc = (struct mlx4_en_tx_desc *) ring->bounce_buf;
+ bounce = true;
+ }
+
+ /* Save skb in tx_info ring */
+ tx_info = &ring->tx_info[index];
+ tx_info->skb = skb;
+ tx_info->nr_txbb = nr_txbb;
+
+ /* Prepare ctrl segement apart opcode+ownership, which depends on
+ * whether LSO is used */
+ tx_desc->ctrl.vlan_tag = cpu_to_be16(vlan_tag);
+ tx_desc->ctrl.ins_vlan = MLX4_WQE_CTRL_INS_VLAN * !!vlan_tag;
+ tx_desc->ctrl.fence_size = (real_size / 16) & 0x3f;
+ tx_desc->ctrl.srcrb_flags = cpu_to_be32(MLX4_WQE_CTRL_CQ_UPDATE |
+ MLX4_WQE_CTRL_SOLICITED);
+ if (likely(skb->ip_summed == CHECKSUM_PARTIAL)) {
+ tx_desc->ctrl.srcrb_flags |= cpu_to_be32(MLX4_WQE_CTRL_IP_CSUM |
+ MLX4_WQE_CTRL_TCP_UDP_CSUM);
+ priv->port_stats.tx_chksum_offload++;
+ }
+
+ if (unlikely(priv->validate_loopback)) {
+ /* Copy dst mac address to wqe */
+ skb_reset_mac_header(skb);
+ ethh = eth_hdr(skb);
+ if (ethh && ethh->h_dest) {
+ mac = mlx4_en_mac_to_u64(ethh->h_dest);
+ mac_h = (u32) ((mac & 0xffff00000000ULL) >> 16);
+ mac_l = (u32) (mac & 0xffffffff);
+ tx_desc->ctrl.srcrb_flags |= cpu_to_be32(mac_h);
+ tx_desc->ctrl.imm = cpu_to_be32(mac_l);
+ }
+ }
+
+ /* Handle LSO (TSO) packets */
+ if (lso_header_size) {
+ /* Mark opcode as LSO */
+ op_own = cpu_to_be32(MLX4_OPCODE_LSO | (1 << 6)) |
+ ((ring->prod & ring->size) ?
+ cpu_to_be32(MLX4_EN_BIT_DESC_OWN) : 0);
+
+ /* Fill in the LSO prefix */
+ tx_desc->lso.mss_hdr_size = cpu_to_be32(
+ skb_shinfo(skb)->gso_size << 16 | lso_header_size);
+
+ /* Copy headers;
+ * note that we already verified that it is linear */
+ memcpy(tx_desc->lso.header, skb->data, lso_header_size);
+ data = ((void *) &tx_desc->lso +
+ ALIGN(lso_header_size + 4, DS_SIZE));
+
+ priv->port_stats.tso_packets++;
+ i = ((skb->len - lso_header_size) / skb_shinfo(skb)->gso_size) +
+ !!((skb->len - lso_header_size) % skb_shinfo(skb)->gso_size);
+ ring->bytes += skb->len + (i - 1) * lso_header_size;
+ ring->packets += i;
+ } else {
+ /* Normal (Non LSO) packet */
+ op_own = cpu_to_be32(MLX4_OPCODE_SEND) |
+ ((ring->prod & ring->size) ?
+ cpu_to_be32(MLX4_EN_BIT_DESC_OWN) : 0);
+ data = &tx_desc->data;
+ ring->bytes += max(skb->len, (unsigned int) ETH_ZLEN);
+ ring->packets++;
+
+ }
+ AVG_PERF_COUNTER(priv->pstats.tx_pktsz_avg, skb->len);
+
+
+ /* valid only for none inline segments */
+ tx_info->data_offset = (void *) data - (void *) tx_desc;
+
+ tx_info->linear = (lso_header_size < skb_headlen(skb) && !is_inline(skb, NULL)) ? 1 : 0;
+ data += skb_shinfo(skb)->nr_frags + tx_info->linear - 1;
+
+ if (!is_inline(skb, &fragptr)) {
+ /* Map fragments */
+ for (i = skb_shinfo(skb)->nr_frags - 1; i >= 0; i--) {
+ frag = &skb_shinfo(skb)->frags[i];
+ dma = pci_map_page(mdev->dev->pdev, frag->page, frag->page_offset,
+ frag->size, PCI_DMA_TODEVICE);
+ data->addr = cpu_to_be64(dma);
+ data->lkey = cpu_to_be32(mdev->mr.key);
+ wmb();
+ data->byte_count = cpu_to_be32(frag->size);
+ --data;
+ }
+
+ /* Map linear part */
+ if (tx_info->linear) {
+ dma = pci_map_single(mdev->dev->pdev, skb->data + lso_header_size,
+ skb_headlen(skb) - lso_header_size, PCI_DMA_TODEVICE);
+ data->addr = cpu_to_be64(dma);
+ data->lkey = cpu_to_be32(mdev->mr.key);
+ wmb();
+ data->byte_count = cpu_to_be32(skb_headlen(skb) - lso_header_size);
+ }
+ tx_info->inl = 0;
+ } else {
+ build_inline_wqe(tx_desc, skb, real_size, &vlan_tag, tx_ind, fragptr);
+ tx_info->inl = 1;
+ }
+
+ ring->prod += nr_txbb;
+
+ /* If we used a bounce buffer then copy descriptor back into place */
+ if (bounce)
+ tx_desc = mlx4_en_bounce_to_desc(priv, ring, index, desc_size);
+
+ /* Run destructor before passing skb to HW */
+ if (likely(!skb_shared(skb)))
+ skb_orphan(skb);
+
+ if (ring->bf_enabled && desc_size <= MAX_BF && !bounce && !vlan_tag) {
+ *(u32 *) (&tx_desc->ctrl.vlan_tag) |= ring->doorbell_qpn;
+ op_own |= htonl((bf_index & 0xffff) << 8);
+ /* Ensure new descirptor hits memory
+ * before setting ownership of this descriptor to HW */
+ wmb();
+ tx_desc->ctrl.owner_opcode = op_own;
+
+ wmb();
+
+ mlx4_bf_copy(ring->bf.reg + ring->bf.offset, (unsigned long *) &tx_desc->ctrl,
+ desc_size);
+
+ wmb();
+
+ ring->bf.offset ^= ring->bf.buf_size;
+ } else {
+ /* Ensure new descirptor hits memory
+ * before setting ownership of this descriptor to HW */
+ wmb();
+ tx_desc->ctrl.owner_opcode = op_own;
+ wmb();
+ writel(ring->doorbell_qpn, ring->bf.uar->map + MLX4_SEND_DOORBELL);
+ }
+
+ /* Poll CQ here */
+ mlx4_en_xmit_poll(priv, tx_ind);
+
+ return NETDEV_TX_OK;
+
+tx_drop:
+ dev_kfree_skb_any(skb);
+ priv->stats.tx_dropped++;
+ return NETDEV_TX_OK;
+}
+
--- /dev/null
+/*
+ * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2005, 2006, 2007 Cisco Systems, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/mm.h>
+#include <linux/dma-mapping.h>
+
+#include <linux/mlx4/cmd.h>
+
+#include "mlx4.h"
+#include "fw.h"
+
+enum {
+ MLX4_IRQNAME_SIZE = 32
+};
+
+enum {
+ MLX4_NUM_ASYNC_EQE = 0x100,
+ MLX4_NUM_SPARE_EQE = 0x80,
+ MLX4_EQ_ENTRY_SIZE = 0x20
+};
+
+/*
+ * Must be packed because start is 64 bits but only aligned to 32 bits.
+ */
+struct mlx4_eq_context {
+ __be32 flags;
+ u16 reserved1[3];
+ __be16 page_offset;
+ u8 log_eq_size;
+ u8 reserved2[4];
+ u8 eq_period;
+ u8 reserved3;
+ u8 eq_max_count;
+ u8 reserved4[3];
+ u8 intr;
+ u8 log_page_size;
+ u8 reserved5[2];
+ u8 mtt_base_addr_h;
+ __be32 mtt_base_addr_l;
+ u32 reserved6[2];
+ __be32 consumer_index;
+ __be32 producer_index;
+ u32 reserved7[4];
+};
+
+#define MLX4_EQ_STATUS_OK ( 0 << 28)
+#define MLX4_EQ_STATUS_WRITE_FAIL (10 << 28)
+#define MLX4_EQ_OWNER_SW ( 0 << 24)
+#define MLX4_EQ_OWNER_HW ( 1 << 24)
+#define MLX4_EQ_FLAG_EC ( 1 << 18)
+#define MLX4_EQ_FLAG_OI ( 1 << 17)
+#define MLX4_EQ_STATE_ARMED ( 9 << 8)
+#define MLX4_EQ_STATE_FIRED (10 << 8)
+#define MLX4_EQ_STATE_ALWAYS_ARMED (11 << 8)
+
+#define MLX4_ASYNC_EVENT_MASK ((1ull << MLX4_EVENT_TYPE_PATH_MIG) | \
+ (1ull << MLX4_EVENT_TYPE_COMM_EST) | \
+ (1ull << MLX4_EVENT_TYPE_SQ_DRAINED) | \
+ (1ull << MLX4_EVENT_TYPE_CQ_ERROR) | \
+ (1ull << MLX4_EVENT_TYPE_WQ_CATAS_ERROR) | \
+ (1ull << MLX4_EVENT_TYPE_EEC_CATAS_ERROR) | \
+ (1ull << MLX4_EVENT_TYPE_PATH_MIG_FAILED) | \
+ (1ull << MLX4_EVENT_TYPE_WQ_INVAL_REQ_ERROR) | \
+ (1ull << MLX4_EVENT_TYPE_WQ_ACCESS_ERROR) | \
+ (1ull << MLX4_EVENT_TYPE_PORT_CHANGE) | \
+ (1ull << MLX4_EVENT_TYPE_ECC_DETECT) | \
+ (1ull << MLX4_EVENT_TYPE_SRQ_CATAS_ERROR) | \
+ (1ull << MLX4_EVENT_TYPE_SRQ_QP_LAST_WQE) | \
+ (1ull << MLX4_EVENT_TYPE_SRQ_LIMIT) | \
+ (1ull << MLX4_EVENT_TYPE_CMD))
+
+struct mlx4_eqe {
+ u8 reserved1;
+ u8 type;
+ u8 reserved2;
+ u8 subtype;
+ union {
+ u32 raw[6];
+ struct {
+ __be32 cqn;
+ } __packed comp;
+ struct {
+ u16 reserved1;
+ __be16 token;
+ u32 reserved2;
+ u8 reserved3[3];
+ u8 status;
+ __be64 out_param;
+ } __packed cmd;
+ struct {
+ __be32 qpn;
+ } __packed qp;
+ struct {
+ __be32 srqn;
+ } __packed srq;
+ struct {
+ __be32 cqn;
+ u32 reserved1;
+ u8 reserved2[3];
+ u8 syndrome;
+ } __packed cq_err;
+ struct {
+ u32 reserved1[2];
+ __be32 port;
+ } __packed port_change;
+ } event;
+ u8 reserved3[3];
+ u8 owner;
+} __packed;
+
+static void eq_set_ci(struct mlx4_eq *eq, int req_not)
+{
+ __raw_writel((__force u32) cpu_to_be32((eq->cons_index & 0xffffff) |
+ req_not << 31),
+ eq->doorbell);
+ /* We still want ordering, just not swabbing, so add a barrier */
+ mb();
+}
+
+static struct mlx4_eqe *get_eqe(struct mlx4_eq *eq, u32 entry)
+{
+ unsigned long off = (entry & (eq->nent - 1)) * MLX4_EQ_ENTRY_SIZE;
+ return eq->page_list[off / PAGE_SIZE].buf + off % PAGE_SIZE;
+}
+
+static struct mlx4_eqe *next_eqe_sw(struct mlx4_eq *eq)
+{
+ struct mlx4_eqe *eqe = get_eqe(eq, eq->cons_index);
+ return !!(eqe->owner & 0x80) ^ !!(eq->cons_index & eq->nent) ? NULL : eqe;
+}
+
+static int mlx4_eq_int(struct mlx4_dev *dev, struct mlx4_eq *eq)
+{
+ struct mlx4_eqe *eqe;
+ int cqn;
+ int eqes_found = 0;
+ int set_ci = 0;
+ int port;
+
+ while ((eqe = next_eqe_sw(eq))) {
+ /*
+ * Make sure we read EQ entry contents after we've
+ * checked the ownership bit.
+ */
+ rmb();
+
+ switch (eqe->type) {
+ case MLX4_EVENT_TYPE_COMP:
+ cqn = be32_to_cpu(eqe->event.comp.cqn) & 0xffffff;
+ mlx4_cq_completion(dev, cqn);
+ break;
+
+ case MLX4_EVENT_TYPE_PATH_MIG:
+ case MLX4_EVENT_TYPE_COMM_EST:
+ case MLX4_EVENT_TYPE_SQ_DRAINED:
+ case MLX4_EVENT_TYPE_SRQ_QP_LAST_WQE:
+ case MLX4_EVENT_TYPE_WQ_CATAS_ERROR:
+ case MLX4_EVENT_TYPE_PATH_MIG_FAILED:
+ case MLX4_EVENT_TYPE_WQ_INVAL_REQ_ERROR:
+ case MLX4_EVENT_TYPE_WQ_ACCESS_ERROR:
+ mlx4_qp_event(dev, be32_to_cpu(eqe->event.qp.qpn) & 0xffffff,
+ eqe->type);
+ break;
+
+ case MLX4_EVENT_TYPE_SRQ_LIMIT:
+ case MLX4_EVENT_TYPE_SRQ_CATAS_ERROR:
+ mlx4_srq_event(dev, be32_to_cpu(eqe->event.srq.srqn) & 0xffffff,
+ eqe->type);
+ break;
+
+ case MLX4_EVENT_TYPE_CMD:
+ mlx4_cmd_event(dev,
+ be16_to_cpu(eqe->event.cmd.token),
+ eqe->event.cmd.status,
+ be64_to_cpu(eqe->event.cmd.out_param));
+ break;
+
+ case MLX4_EVENT_TYPE_PORT_CHANGE:
+ port = be32_to_cpu(eqe->event.port_change.port) >> 28;
+ if (eqe->subtype == MLX4_PORT_CHANGE_SUBTYPE_DOWN) {
+ mlx4_dispatch_event(dev, MLX4_DEV_EVENT_PORT_DOWN,
+ port);
+ mlx4_priv(dev)->sense.do_sense_port[port] = 1;
+ } else {
+ mlx4_dispatch_event(dev, MLX4_DEV_EVENT_PORT_UP,
+ port);
+ mlx4_priv(dev)->sense.do_sense_port[port] = 0;
+ }
+ break;
+
+ case MLX4_EVENT_TYPE_CQ_ERROR:
+ mlx4_warn(dev, "CQ %s on CQN %06x\n",
+ eqe->event.cq_err.syndrome == 1 ?
+ "overrun" : "access violation",
+ be32_to_cpu(eqe->event.cq_err.cqn) & 0xffffff);
+ mlx4_cq_event(dev, be32_to_cpu(eqe->event.cq_err.cqn),
+ eqe->type);
+ break;
+
+ case MLX4_EVENT_TYPE_EQ_OVERFLOW:
+ mlx4_warn(dev, "EQ overrun on EQN %d\n", eq->eqn);
+ break;
+
+ case MLX4_EVENT_TYPE_EEC_CATAS_ERROR:
+ case MLX4_EVENT_TYPE_ECC_DETECT:
+ default:
+ mlx4_warn(dev, "Unhandled event %02x(%02x) on EQ %d at index %u\n",
+ eqe->type, eqe->subtype, eq->eqn, eq->cons_index);
+ break;
+ }
+
+ ++eq->cons_index;
+ eqes_found = 1;
+ ++set_ci;
+
+ /*
+ * The HCA will think the queue has overflowed if we
+ * don't tell it we've been processing events. We
+ * create our EQs with MLX4_NUM_SPARE_EQE extra
+ * entries, so we must update our consumer index at
+ * least that often.
+ */
+ if (unlikely(set_ci >= MLX4_NUM_SPARE_EQE)) {
+ eq_set_ci(eq, 0);
+ set_ci = 0;
+ }
+ }
+
+ eq_set_ci(eq, 1);
+
+ return eqes_found;
+}
+
+static irqreturn_t mlx4_interrupt(int irq, void *dev_ptr)
+{
+ struct mlx4_dev *dev = dev_ptr;
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ int work = 0;
+ int i;
+
+ writel(priv->eq_table.clr_mask, priv->eq_table.clr_int);
+
+ for (i = 0; i < dev->caps.num_comp_vectors + 1; ++i)
+ work |= mlx4_eq_int(dev, &priv->eq_table.eq[i]);
+
+ return IRQ_RETVAL(work);
+}
+
+static irqreturn_t mlx4_msi_x_interrupt(int irq, void *eq_ptr)
+{
+ struct mlx4_eq *eq = eq_ptr;
+ struct mlx4_dev *dev = eq->dev;
+
+ mlx4_eq_int(dev, eq);
+
+ /* MSI-X vectors always belong to us */
+ return IRQ_HANDLED;
+}
+
+static int mlx4_MAP_EQ(struct mlx4_dev *dev, u64 event_mask, int unmap,
+ int eq_num)
+{
+ return mlx4_cmd(dev, event_mask, (unmap << 31) | eq_num,
+ 0, MLX4_CMD_MAP_EQ, MLX4_CMD_TIME_CLASS_B);
+}
+
+static int mlx4_SW2HW_EQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
+ int eq_num)
+{
+ return mlx4_cmd(dev, mailbox->dma, eq_num, 0, MLX4_CMD_SW2HW_EQ,
+ MLX4_CMD_TIME_CLASS_A);
+}
+
+static int mlx4_HW2SW_EQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
+ int eq_num)
+{
+ return mlx4_cmd_box(dev, 0, mailbox->dma, eq_num, 0, MLX4_CMD_HW2SW_EQ,
+ MLX4_CMD_TIME_CLASS_A);
+}
+
+static int mlx4_num_eq_uar(struct mlx4_dev *dev)
+{
+ /*
+ * Each UAR holds 4 EQ doorbells. To figure out how many UARs
+ * we need to map, take the difference of highest index and
+ * the lowest index we'll use and add 1.
+ */
+ return (dev->caps.num_comp_vectors + 1 + dev->caps.reserved_eqs +
+ dev->caps.comp_pool)/4 - dev->caps.reserved_eqs/4 + 1;
+}
+
+static void __iomem *mlx4_get_eq_uar(struct mlx4_dev *dev, struct mlx4_eq *eq)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ int index;
+
+ index = eq->eqn / 4 - dev->caps.reserved_eqs / 4;
+
+ if (!priv->eq_table.uar_map[index]) {
+ priv->eq_table.uar_map[index] =
+ ioremap(pci_resource_start(dev->pdev, 2) +
+ ((eq->eqn / 4) << PAGE_SHIFT),
+ PAGE_SIZE);
+ if (!priv->eq_table.uar_map[index]) {
+ mlx4_err(dev, "Couldn't map EQ doorbell for EQN 0x%06x\n",
+ eq->eqn);
+ return NULL;
+ }
+ }
+
+ return priv->eq_table.uar_map[index] + 0x800 + 8 * (eq->eqn % 4);
+}
+
+static int mlx4_create_eq(struct mlx4_dev *dev, int nent,
+ u8 intr, struct mlx4_eq *eq)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ struct mlx4_cmd_mailbox *mailbox;
+ struct mlx4_eq_context *eq_context;
+ int npages;
+ u64 *dma_list = NULL;
+ dma_addr_t t;
+ u64 mtt_addr;
+ int err = -ENOMEM;
+ int i;
+
+ eq->dev = dev;
+ eq->nent = roundup_pow_of_two(max(nent, 2));
+ npages = PAGE_ALIGN(eq->nent * MLX4_EQ_ENTRY_SIZE) / PAGE_SIZE;
+
+ eq->page_list = kmalloc(npages * sizeof *eq->page_list,
+ GFP_KERNEL);
+ if (!eq->page_list)
+ goto err_out;
+
+ for (i = 0; i < npages; ++i)
+ eq->page_list[i].buf = NULL;
+
+ dma_list = kmalloc(npages * sizeof *dma_list, GFP_KERNEL);
+ if (!dma_list)
+ goto err_out_free;
+
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox))
+ goto err_out_free;
+ eq_context = mailbox->buf;
+
+ for (i = 0; i < npages; ++i) {
+ eq->page_list[i].buf = dma_alloc_coherent(&dev->pdev->dev,
+ PAGE_SIZE, &t, GFP_KERNEL);
+ if (!eq->page_list[i].buf)
+ goto err_out_free_pages;
+
+ dma_list[i] = t;
+ eq->page_list[i].map = t;
+
+ memset(eq->page_list[i].buf, 0, PAGE_SIZE);
+ }
+
+ eq->eqn = mlx4_bitmap_alloc(&priv->eq_table.bitmap);
+ if (eq->eqn == -1)
+ goto err_out_free_pages;
+
+ eq->doorbell = mlx4_get_eq_uar(dev, eq);
+ if (!eq->doorbell) {
+ err = -ENOMEM;
+ goto err_out_free_eq;
+ }
+
+ err = mlx4_mtt_init(dev, npages, PAGE_SHIFT, &eq->mtt);
+ if (err)
+ goto err_out_free_eq;
+
+ err = mlx4_write_mtt(dev, &eq->mtt, 0, npages, dma_list);
+ if (err)
+ goto err_out_free_mtt;
+
+ memset(eq_context, 0, sizeof *eq_context);
+ eq_context->flags = cpu_to_be32(MLX4_EQ_STATUS_OK |
+ MLX4_EQ_STATE_ARMED);
+ eq_context->log_eq_size = ilog2(eq->nent);
+ eq_context->intr = intr;
+ eq_context->log_page_size = PAGE_SHIFT - MLX4_ICM_PAGE_SHIFT;
+
+ mtt_addr = mlx4_mtt_addr(dev, &eq->mtt);
+ eq_context->mtt_base_addr_h = mtt_addr >> 32;
+ eq_context->mtt_base_addr_l = cpu_to_be32(mtt_addr & 0xffffffff);
+
+ err = mlx4_SW2HW_EQ(dev, mailbox, eq->eqn);
+ if (err) {
+ mlx4_warn(dev, "SW2HW_EQ failed (%d)\n", err);
+ goto err_out_free_mtt;
+ }
+
+ kfree(dma_list);
+ mlx4_free_cmd_mailbox(dev, mailbox);
+
+ eq->cons_index = 0;
+
+ return err;
+
+err_out_free_mtt:
+ mlx4_mtt_cleanup(dev, &eq->mtt);
+
+err_out_free_eq:
+ mlx4_bitmap_free(&priv->eq_table.bitmap, eq->eqn);
+
+err_out_free_pages:
+ for (i = 0; i < npages; ++i)
+ if (eq->page_list[i].buf)
+ dma_free_coherent(&dev->pdev->dev, PAGE_SIZE,
+ eq->page_list[i].buf,
+ eq->page_list[i].map);
+
+ mlx4_free_cmd_mailbox(dev, mailbox);
+
+err_out_free:
+ kfree(eq->page_list);
+ kfree(dma_list);
+
+err_out:
+ return err;
+}
+
+static void mlx4_free_eq(struct mlx4_dev *dev,
+ struct mlx4_eq *eq)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ struct mlx4_cmd_mailbox *mailbox;
+ int err;
+ int npages = PAGE_ALIGN(MLX4_EQ_ENTRY_SIZE * eq->nent) / PAGE_SIZE;
+ int i;
+
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox))
+ return;
+
+ err = mlx4_HW2SW_EQ(dev, mailbox, eq->eqn);
+ if (err)
+ mlx4_warn(dev, "HW2SW_EQ failed (%d)\n", err);
+
+ if (0) {
+ mlx4_dbg(dev, "Dumping EQ context %02x:\n", eq->eqn);
+ for (i = 0; i < sizeof (struct mlx4_eq_context) / 4; ++i) {
+ if (i % 4 == 0)
+ pr_cont("[%02x] ", i * 4);
+ pr_cont(" %08x", be32_to_cpup(mailbox->buf + i * 4));
+ if ((i + 1) % 4 == 0)
+ pr_cont("\n");
+ }
+ }
+
+ mlx4_mtt_cleanup(dev, &eq->mtt);
+ for (i = 0; i < npages; ++i)
+ pci_free_consistent(dev->pdev, PAGE_SIZE,
+ eq->page_list[i].buf,
+ eq->page_list[i].map);
+
+ kfree(eq->page_list);
+ mlx4_bitmap_free(&priv->eq_table.bitmap, eq->eqn);
+ mlx4_free_cmd_mailbox(dev, mailbox);
+}
+
+static void mlx4_free_irqs(struct mlx4_dev *dev)
+{
+ struct mlx4_eq_table *eq_table = &mlx4_priv(dev)->eq_table;
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ int i, vec;
+
+ if (eq_table->have_irq)
+ free_irq(dev->pdev->irq, dev);
+
+ for (i = 0; i < dev->caps.num_comp_vectors + 1; ++i)
+ if (eq_table->eq[i].have_irq) {
+ free_irq(eq_table->eq[i].irq, eq_table->eq + i);
+ eq_table->eq[i].have_irq = 0;
+ }
+
+ for (i = 0; i < dev->caps.comp_pool; i++) {
+ /*
+ * Freeing the assigned irq's
+ * all bits should be 0, but we need to validate
+ */
+ if (priv->msix_ctl.pool_bm & 1ULL << i) {
+ /* NO need protecting*/
+ vec = dev->caps.num_comp_vectors + 1 + i;
+ free_irq(priv->eq_table.eq[vec].irq,
+ &priv->eq_table.eq[vec]);
+ }
+ }
+
+
+ kfree(eq_table->irq_names);
+}
+
+static int mlx4_map_clr_int(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+
+ priv->clr_base = ioremap(pci_resource_start(dev->pdev, priv->fw.clr_int_bar) +
+ priv->fw.clr_int_base, MLX4_CLR_INT_SIZE);
+ if (!priv->clr_base) {
+ mlx4_err(dev, "Couldn't map interrupt clear register, aborting.\n");
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+static void mlx4_unmap_clr_int(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+
+ iounmap(priv->clr_base);
+}
+
+int mlx4_alloc_eq_table(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+
+ priv->eq_table.eq = kcalloc(dev->caps.num_eqs - dev->caps.reserved_eqs,
+ sizeof *priv->eq_table.eq, GFP_KERNEL);
+ if (!priv->eq_table.eq)
+ return -ENOMEM;
+
+ return 0;
+}
+
+void mlx4_free_eq_table(struct mlx4_dev *dev)
+{
+ kfree(mlx4_priv(dev)->eq_table.eq);
+}
+
+int mlx4_init_eq_table(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ int err;
+ int i;
+
+ priv->eq_table.uar_map = kcalloc(sizeof *priv->eq_table.uar_map,
+ mlx4_num_eq_uar(dev), GFP_KERNEL);
+ if (!priv->eq_table.uar_map) {
+ err = -ENOMEM;
+ goto err_out_free;
+ }
+
+ err = mlx4_bitmap_init(&priv->eq_table.bitmap, dev->caps.num_eqs,
+ dev->caps.num_eqs - 1, dev->caps.reserved_eqs, 0);
+ if (err)
+ goto err_out_free;
+
+ for (i = 0; i < mlx4_num_eq_uar(dev); ++i)
+ priv->eq_table.uar_map[i] = NULL;
+
+ err = mlx4_map_clr_int(dev);
+ if (err)
+ goto err_out_bitmap;
+
+ priv->eq_table.clr_mask =
+ swab32(1 << (priv->eq_table.inta_pin & 31));
+ priv->eq_table.clr_int = priv->clr_base +
+ (priv->eq_table.inta_pin < 32 ? 4 : 0);
+
+ priv->eq_table.irq_names =
+ kmalloc(MLX4_IRQNAME_SIZE * (dev->caps.num_comp_vectors + 1 +
+ dev->caps.comp_pool),
+ GFP_KERNEL);
+ if (!priv->eq_table.irq_names) {
+ err = -ENOMEM;
+ goto err_out_bitmap;
+ }
+
+ for (i = 0; i < dev->caps.num_comp_vectors; ++i) {
+ err = mlx4_create_eq(dev, dev->caps.num_cqs -
+ dev->caps.reserved_cqs +
+ MLX4_NUM_SPARE_EQE,
+ (dev->flags & MLX4_FLAG_MSI_X) ? i : 0,
+ &priv->eq_table.eq[i]);
+ if (err) {
+ --i;
+ goto err_out_unmap;
+ }
+ }
+
+ err = mlx4_create_eq(dev, MLX4_NUM_ASYNC_EQE + MLX4_NUM_SPARE_EQE,
+ (dev->flags & MLX4_FLAG_MSI_X) ? dev->caps.num_comp_vectors : 0,
+ &priv->eq_table.eq[dev->caps.num_comp_vectors]);
+ if (err)
+ goto err_out_comp;
+
+ /*if additional completion vectors poolsize is 0 this loop will not run*/
+ for (i = dev->caps.num_comp_vectors + 1;
+ i < dev->caps.num_comp_vectors + dev->caps.comp_pool + 1; ++i) {
+
+ err = mlx4_create_eq(dev, dev->caps.num_cqs -
+ dev->caps.reserved_cqs +
+ MLX4_NUM_SPARE_EQE,
+ (dev->flags & MLX4_FLAG_MSI_X) ? i : 0,
+ &priv->eq_table.eq[i]);
+ if (err) {
+ --i;
+ goto err_out_unmap;
+ }
+ }
+
+
+ if (dev->flags & MLX4_FLAG_MSI_X) {
+ const char *eq_name;
+
+ for (i = 0; i < dev->caps.num_comp_vectors + 1; ++i) {
+ if (i < dev->caps.num_comp_vectors) {
+ snprintf(priv->eq_table.irq_names +
+ i * MLX4_IRQNAME_SIZE,
+ MLX4_IRQNAME_SIZE,
+ "mlx4-comp-%d@pci:%s", i,
+ pci_name(dev->pdev));
+ } else {
+ snprintf(priv->eq_table.irq_names +
+ i * MLX4_IRQNAME_SIZE,
+ MLX4_IRQNAME_SIZE,
+ "mlx4-async@pci:%s",
+ pci_name(dev->pdev));
+ }
+
+ eq_name = priv->eq_table.irq_names +
+ i * MLX4_IRQNAME_SIZE;
+ err = request_irq(priv->eq_table.eq[i].irq,
+ mlx4_msi_x_interrupt, 0, eq_name,
+ priv->eq_table.eq + i);
+ if (err)
+ goto err_out_async;
+
+ priv->eq_table.eq[i].have_irq = 1;
+ }
+ } else {
+ snprintf(priv->eq_table.irq_names,
+ MLX4_IRQNAME_SIZE,
+ DRV_NAME "@pci:%s",
+ pci_name(dev->pdev));
+ err = request_irq(dev->pdev->irq, mlx4_interrupt,
+ IRQF_SHARED, priv->eq_table.irq_names, dev);
+ if (err)
+ goto err_out_async;
+
+ priv->eq_table.have_irq = 1;
+ }
+
+ err = mlx4_MAP_EQ(dev, MLX4_ASYNC_EVENT_MASK, 0,
+ priv->eq_table.eq[dev->caps.num_comp_vectors].eqn);
+ if (err)
+ mlx4_warn(dev, "MAP_EQ for async EQ %d failed (%d)\n",
+ priv->eq_table.eq[dev->caps.num_comp_vectors].eqn, err);
+
+ for (i = 0; i < dev->caps.num_comp_vectors + 1; ++i)
+ eq_set_ci(&priv->eq_table.eq[i], 1);
+
+ return 0;
+
+err_out_async:
+ mlx4_free_eq(dev, &priv->eq_table.eq[dev->caps.num_comp_vectors]);
+
+err_out_comp:
+ i = dev->caps.num_comp_vectors - 1;
+
+err_out_unmap:
+ while (i >= 0) {
+ mlx4_free_eq(dev, &priv->eq_table.eq[i]);
+ --i;
+ }
+ mlx4_unmap_clr_int(dev);
+ mlx4_free_irqs(dev);
+
+err_out_bitmap:
+ mlx4_bitmap_cleanup(&priv->eq_table.bitmap);
+
+err_out_free:
+ kfree(priv->eq_table.uar_map);
+
+ return err;
+}
+
+void mlx4_cleanup_eq_table(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ int i;
+
+ mlx4_MAP_EQ(dev, MLX4_ASYNC_EVENT_MASK, 1,
+ priv->eq_table.eq[dev->caps.num_comp_vectors].eqn);
+
+ mlx4_free_irqs(dev);
+
+ for (i = 0; i < dev->caps.num_comp_vectors + dev->caps.comp_pool + 1; ++i)
+ mlx4_free_eq(dev, &priv->eq_table.eq[i]);
+
+ mlx4_unmap_clr_int(dev);
+
+ for (i = 0; i < mlx4_num_eq_uar(dev); ++i)
+ if (priv->eq_table.uar_map[i])
+ iounmap(priv->eq_table.uar_map[i]);
+
+ mlx4_bitmap_cleanup(&priv->eq_table.bitmap);
+
+ kfree(priv->eq_table.uar_map);
+}
+
+/* A test that verifies that we can accept interrupts on all
+ * the irq vectors of the device.
+ * Interrupts are checked using the NOP command.
+ */
+int mlx4_test_interrupts(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ int i;
+ int err;
+
+ err = mlx4_NOP(dev);
+ /* When not in MSI_X, there is only one irq to check */
+ if (!(dev->flags & MLX4_FLAG_MSI_X))
+ return err;
+
+ /* A loop over all completion vectors, for each vector we will check
+ * whether it works by mapping command completions to that vector
+ * and performing a NOP command
+ */
+ for(i = 0; !err && (i < dev->caps.num_comp_vectors); ++i) {
+ /* Temporary use polling for command completions */
+ mlx4_cmd_use_polling(dev);
+
+ /* Map the new eq to handle all asyncronous events */
+ err = mlx4_MAP_EQ(dev, MLX4_ASYNC_EVENT_MASK, 0,
+ priv->eq_table.eq[i].eqn);
+ if (err) {
+ mlx4_warn(dev, "Failed mapping eq for interrupt test\n");
+ mlx4_cmd_use_events(dev);
+ break;
+ }
+
+ /* Go back to using events */
+ mlx4_cmd_use_events(dev);
+ err = mlx4_NOP(dev);
+ }
+
+ /* Return to default */
+ mlx4_MAP_EQ(dev, MLX4_ASYNC_EVENT_MASK, 0,
+ priv->eq_table.eq[dev->caps.num_comp_vectors].eqn);
+ return err;
+}
+EXPORT_SYMBOL(mlx4_test_interrupts);
+
+int mlx4_assign_eq(struct mlx4_dev *dev, char* name, int * vector)
+{
+
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ int vec = 0, err = 0, i;
+
+ spin_lock(&priv->msix_ctl.pool_lock);
+ for (i = 0; !vec && i < dev->caps.comp_pool; i++) {
+ if (~priv->msix_ctl.pool_bm & 1ULL << i) {
+ priv->msix_ctl.pool_bm |= 1ULL << i;
+ vec = dev->caps.num_comp_vectors + 1 + i;
+ snprintf(priv->eq_table.irq_names +
+ vec * MLX4_IRQNAME_SIZE,
+ MLX4_IRQNAME_SIZE, "%s", name);
+ err = request_irq(priv->eq_table.eq[vec].irq,
+ mlx4_msi_x_interrupt, 0,
+ &priv->eq_table.irq_names[vec<<5],
+ priv->eq_table.eq + vec);
+ if (err) {
+ /*zero out bit by fliping it*/
+ priv->msix_ctl.pool_bm ^= 1 << i;
+ vec = 0;
+ continue;
+ /*we dont want to break here*/
+ }
+ eq_set_ci(&priv->eq_table.eq[vec], 1);
+ }
+ }
+ spin_unlock(&priv->msix_ctl.pool_lock);
+
+ if (vec) {
+ *vector = vec;
+ } else {
+ *vector = 0;
+ err = (i == dev->caps.comp_pool) ? -ENOSPC : err;
+ }
+ return err;
+}
+EXPORT_SYMBOL(mlx4_assign_eq);
+
+void mlx4_release_eq(struct mlx4_dev *dev, int vec)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ /*bm index*/
+ int i = vec - dev->caps.num_comp_vectors - 1;
+
+ if (likely(i >= 0)) {
+ /*sanity check , making sure were not trying to free irq's
+ Belonging to a legacy EQ*/
+ spin_lock(&priv->msix_ctl.pool_lock);
+ if (priv->msix_ctl.pool_bm & 1ULL << i) {
+ free_irq(priv->eq_table.eq[vec].irq,
+ &priv->eq_table.eq[vec]);
+ priv->msix_ctl.pool_bm &= ~(1ULL << i);
+ }
+ spin_unlock(&priv->msix_ctl.pool_lock);
+ }
+
+}
+EXPORT_SYMBOL(mlx4_release_eq);
+
--- /dev/null
+/*
+ * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
+ * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2005, 2006, 2007 Cisco Systems, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/mlx4/cmd.h>
+#include <linux/cache.h>
+
+#include "fw.h"
+#include "icm.h"
+
+enum {
+ MLX4_COMMAND_INTERFACE_MIN_REV = 2,
+ MLX4_COMMAND_INTERFACE_MAX_REV = 3,
+ MLX4_COMMAND_INTERFACE_NEW_PORT_CMDS = 3,
+};
+
+extern void __buggy_use_of_MLX4_GET(void);
+extern void __buggy_use_of_MLX4_PUT(void);
+
+static int enable_qos;
+module_param(enable_qos, bool, 0444);
+MODULE_PARM_DESC(enable_qos, "Enable Quality of Service support in the HCA (default: off)");
+
+#define MLX4_GET(dest, source, offset) \
+ do { \
+ void *__p = (char *) (source) + (offset); \
+ switch (sizeof (dest)) { \
+ case 1: (dest) = *(u8 *) __p; break; \
+ case 2: (dest) = be16_to_cpup(__p); break; \
+ case 4: (dest) = be32_to_cpup(__p); break; \
+ case 8: (dest) = be64_to_cpup(__p); break; \
+ default: __buggy_use_of_MLX4_GET(); \
+ } \
+ } while (0)
+
+#define MLX4_PUT(dest, source, offset) \
+ do { \
+ void *__d = ((char *) (dest) + (offset)); \
+ switch (sizeof(source)) { \
+ case 1: *(u8 *) __d = (source); break; \
+ case 2: *(__be16 *) __d = cpu_to_be16(source); break; \
+ case 4: *(__be32 *) __d = cpu_to_be32(source); break; \
+ case 8: *(__be64 *) __d = cpu_to_be64(source); break; \
+ default: __buggy_use_of_MLX4_PUT(); \
+ } \
+ } while (0)
+
+static void dump_dev_cap_flags(struct mlx4_dev *dev, u64 flags)
+{
+ static const char *fname[] = {
+ [ 0] = "RC transport",
+ [ 1] = "UC transport",
+ [ 2] = "UD transport",
+ [ 3] = "XRC transport",
+ [ 4] = "reliable multicast",
+ [ 5] = "FCoIB support",
+ [ 6] = "SRQ support",
+ [ 7] = "IPoIB checksum offload",
+ [ 8] = "P_Key violation counter",
+ [ 9] = "Q_Key violation counter",
+ [10] = "VMM",
+ [12] = "DPDP",
+ [15] = "Big LSO headers",
+ [16] = "MW support",
+ [17] = "APM support",
+ [18] = "Atomic ops support",
+ [19] = "Raw multicast support",
+ [20] = "Address vector port checking support",
+ [21] = "UD multicast support",
+ [24] = "Demand paging support",
+ [25] = "Router support",
+ [30] = "IBoE support",
+ [32] = "Unicast loopback support",
+ [38] = "Wake On LAN support",
+ [40] = "UDP RSS support",
+ [41] = "Unicast VEP steering support",
+ [42] = "Multicast VEP steering support",
+ [48] = "Counters support",
+ };
+ int i;
+
+ mlx4_dbg(dev, "DEV_CAP flags:\n");
+ for (i = 0; i < ARRAY_SIZE(fname); ++i)
+ if (fname[i] && (flags & (1LL << i)))
+ mlx4_dbg(dev, " %s\n", fname[i]);
+}
+
+int mlx4_MOD_STAT_CFG(struct mlx4_dev *dev, struct mlx4_mod_stat_cfg *cfg)
+{
+ struct mlx4_cmd_mailbox *mailbox;
+ u32 *inbox;
+ int err = 0;
+
+#define MOD_STAT_CFG_IN_SIZE 0x100
+
+#define MOD_STAT_CFG_PG_SZ_M_OFFSET 0x002
+#define MOD_STAT_CFG_PG_SZ_OFFSET 0x003
+
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox))
+ return PTR_ERR(mailbox);
+ inbox = mailbox->buf;
+
+ memset(inbox, 0, MOD_STAT_CFG_IN_SIZE);
+
+ MLX4_PUT(inbox, cfg->log_pg_sz, MOD_STAT_CFG_PG_SZ_OFFSET);
+ MLX4_PUT(inbox, cfg->log_pg_sz_m, MOD_STAT_CFG_PG_SZ_M_OFFSET);
+
+ err = mlx4_cmd(dev, mailbox->dma, 0, 0, MLX4_CMD_MOD_STAT_CFG,
+ MLX4_CMD_TIME_CLASS_A);
+
+ mlx4_free_cmd_mailbox(dev, mailbox);
+ return err;
+}
+
+int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
+{
+ struct mlx4_cmd_mailbox *mailbox;
+ u32 *outbox;
+ u8 field;
+ u32 field32, flags, ext_flags;
+ u16 size;
+ u16 stat_rate;
+ int err;
+ int i;
+
+#define QUERY_DEV_CAP_OUT_SIZE 0x100
+#define QUERY_DEV_CAP_MAX_SRQ_SZ_OFFSET 0x10
+#define QUERY_DEV_CAP_MAX_QP_SZ_OFFSET 0x11
+#define QUERY_DEV_CAP_RSVD_QP_OFFSET 0x12
+#define QUERY_DEV_CAP_MAX_QP_OFFSET 0x13
+#define QUERY_DEV_CAP_RSVD_SRQ_OFFSET 0x14
+#define QUERY_DEV_CAP_MAX_SRQ_OFFSET 0x15
+#define QUERY_DEV_CAP_RSVD_EEC_OFFSET 0x16
+#define QUERY_DEV_CAP_MAX_EEC_OFFSET 0x17
+#define QUERY_DEV_CAP_MAX_CQ_SZ_OFFSET 0x19
+#define QUERY_DEV_CAP_RSVD_CQ_OFFSET 0x1a
+#define QUERY_DEV_CAP_MAX_CQ_OFFSET 0x1b
+#define QUERY_DEV_CAP_MAX_MPT_OFFSET 0x1d
+#define QUERY_DEV_CAP_RSVD_EQ_OFFSET 0x1e
+#define QUERY_DEV_CAP_MAX_EQ_OFFSET 0x1f
+#define QUERY_DEV_CAP_RSVD_MTT_OFFSET 0x20
+#define QUERY_DEV_CAP_MAX_MRW_SZ_OFFSET 0x21
+#define QUERY_DEV_CAP_RSVD_MRW_OFFSET 0x22
+#define QUERY_DEV_CAP_MAX_MTT_SEG_OFFSET 0x23
+#define QUERY_DEV_CAP_MAX_AV_OFFSET 0x27
+#define QUERY_DEV_CAP_MAX_REQ_QP_OFFSET 0x29
+#define QUERY_DEV_CAP_MAX_RES_QP_OFFSET 0x2b
+#define QUERY_DEV_CAP_MAX_GSO_OFFSET 0x2d
+#define QUERY_DEV_CAP_MAX_RDMA_OFFSET 0x2f
+#define QUERY_DEV_CAP_RSZ_SRQ_OFFSET 0x33
+#define QUERY_DEV_CAP_ACK_DELAY_OFFSET 0x35
+#define QUERY_DEV_CAP_MTU_WIDTH_OFFSET 0x36
+#define QUERY_DEV_CAP_VL_PORT_OFFSET 0x37
+#define QUERY_DEV_CAP_MAX_MSG_SZ_OFFSET 0x38
+#define QUERY_DEV_CAP_MAX_GID_OFFSET 0x3b
+#define QUERY_DEV_CAP_RATE_SUPPORT_OFFSET 0x3c
+#define QUERY_DEV_CAP_MAX_PKEY_OFFSET 0x3f
+#define QUERY_DEV_CAP_EXT_FLAGS_OFFSET 0x40
+#define QUERY_DEV_CAP_FLAGS_OFFSET 0x44
+#define QUERY_DEV_CAP_RSVD_UAR_OFFSET 0x48
+#define QUERY_DEV_CAP_UAR_SZ_OFFSET 0x49
+#define QUERY_DEV_CAP_PAGE_SZ_OFFSET 0x4b
+#define QUERY_DEV_CAP_BF_OFFSET 0x4c
+#define QUERY_DEV_CAP_LOG_BF_REG_SZ_OFFSET 0x4d
+#define QUERY_DEV_CAP_LOG_MAX_BF_REGS_PER_PAGE_OFFSET 0x4e
+#define QUERY_DEV_CAP_LOG_MAX_BF_PAGES_OFFSET 0x4f
+#define QUERY_DEV_CAP_MAX_SG_SQ_OFFSET 0x51
+#define QUERY_DEV_CAP_MAX_DESC_SZ_SQ_OFFSET 0x52
+#define QUERY_DEV_CAP_MAX_SG_RQ_OFFSET 0x55
+#define QUERY_DEV_CAP_MAX_DESC_SZ_RQ_OFFSET 0x56
+#define QUERY_DEV_CAP_MAX_QP_MCG_OFFSET 0x61
+#define QUERY_DEV_CAP_RSVD_MCG_OFFSET 0x62
+#define QUERY_DEV_CAP_MAX_MCG_OFFSET 0x63
+#define QUERY_DEV_CAP_RSVD_PD_OFFSET 0x64
+#define QUERY_DEV_CAP_MAX_PD_OFFSET 0x65
+#define QUERY_DEV_CAP_MAX_COUNTERS_OFFSET 0x68
+#define QUERY_DEV_CAP_RDMARC_ENTRY_SZ_OFFSET 0x80
+#define QUERY_DEV_CAP_QPC_ENTRY_SZ_OFFSET 0x82
+#define QUERY_DEV_CAP_AUX_ENTRY_SZ_OFFSET 0x84
+#define QUERY_DEV_CAP_ALTC_ENTRY_SZ_OFFSET 0x86
+#define QUERY_DEV_CAP_EQC_ENTRY_SZ_OFFSET 0x88
+#define QUERY_DEV_CAP_CQC_ENTRY_SZ_OFFSET 0x8a
+#define QUERY_DEV_CAP_SRQ_ENTRY_SZ_OFFSET 0x8c
+#define QUERY_DEV_CAP_C_MPT_ENTRY_SZ_OFFSET 0x8e
+#define QUERY_DEV_CAP_MTT_ENTRY_SZ_OFFSET 0x90
+#define QUERY_DEV_CAP_D_MPT_ENTRY_SZ_OFFSET 0x92
+#define QUERY_DEV_CAP_BMME_FLAGS_OFFSET 0x94
+#define QUERY_DEV_CAP_RSVD_LKEY_OFFSET 0x98
+#define QUERY_DEV_CAP_MAX_ICM_SZ_OFFSET 0xa0
+
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox))
+ return PTR_ERR(mailbox);
+ outbox = mailbox->buf;
+
+ err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_DEV_CAP,
+ MLX4_CMD_TIME_CLASS_A);
+ if (err)
+ goto out;
+
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_QP_OFFSET);
+ dev_cap->reserved_qps = 1 << (field & 0xf);
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_QP_OFFSET);
+ dev_cap->max_qps = 1 << (field & 0x1f);
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_SRQ_OFFSET);
+ dev_cap->reserved_srqs = 1 << (field >> 4);
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SRQ_OFFSET);
+ dev_cap->max_srqs = 1 << (field & 0x1f);
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_CQ_SZ_OFFSET);
+ dev_cap->max_cq_sz = 1 << field;
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_CQ_OFFSET);
+ dev_cap->reserved_cqs = 1 << (field & 0xf);
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_CQ_OFFSET);
+ dev_cap->max_cqs = 1 << (field & 0x1f);
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MPT_OFFSET);
+ dev_cap->max_mpts = 1 << (field & 0x3f);
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_EQ_OFFSET);
+ dev_cap->reserved_eqs = field & 0xf;
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_EQ_OFFSET);
+ dev_cap->max_eqs = 1 << (field & 0xf);
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_MTT_OFFSET);
+ dev_cap->reserved_mtts = 1 << (field >> 4);
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MRW_SZ_OFFSET);
+ dev_cap->max_mrw_sz = 1 << field;
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_MRW_OFFSET);
+ dev_cap->reserved_mrws = 1 << (field & 0xf);
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MTT_SEG_OFFSET);
+ dev_cap->max_mtt_seg = 1 << (field & 0x3f);
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_REQ_QP_OFFSET);
+ dev_cap->max_requester_per_qp = 1 << (field & 0x3f);
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_RES_QP_OFFSET);
+ dev_cap->max_responder_per_qp = 1 << (field & 0x3f);
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_GSO_OFFSET);
+ field &= 0x1f;
+ if (!field)
+ dev_cap->max_gso_sz = 0;
+ else
+ dev_cap->max_gso_sz = 1 << field;
+
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_RDMA_OFFSET);
+ dev_cap->max_rdma_global = 1 << (field & 0x3f);
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_ACK_DELAY_OFFSET);
+ dev_cap->local_ca_ack_delay = field & 0x1f;
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_VL_PORT_OFFSET);
+ dev_cap->num_ports = field & 0xf;
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MSG_SZ_OFFSET);
+ dev_cap->max_msg_sz = 1 << (field & 0x1f);
+ MLX4_GET(stat_rate, outbox, QUERY_DEV_CAP_RATE_SUPPORT_OFFSET);
+ dev_cap->stat_rate_support = stat_rate;
+ MLX4_GET(ext_flags, outbox, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);
+ MLX4_GET(flags, outbox, QUERY_DEV_CAP_FLAGS_OFFSET);
+ dev_cap->flags = flags | (u64)ext_flags << 32;
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_UAR_OFFSET);
+ dev_cap->reserved_uars = field >> 4;
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_UAR_SZ_OFFSET);
+ dev_cap->uar_size = 1 << ((field & 0x3f) + 20);
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_PAGE_SZ_OFFSET);
+ dev_cap->min_page_sz = 1 << field;
+
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_BF_OFFSET);
+ if (field & 0x80) {
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_LOG_BF_REG_SZ_OFFSET);
+ dev_cap->bf_reg_size = 1 << (field & 0x1f);
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_LOG_MAX_BF_REGS_PER_PAGE_OFFSET);
+ if ((1 << (field & 0x3f)) > (PAGE_SIZE / dev_cap->bf_reg_size))
+ field = 3;
+ dev_cap->bf_regs_per_page = 1 << (field & 0x3f);
+ mlx4_dbg(dev, "BlueFlame available (reg size %d, regs/page %d)\n",
+ dev_cap->bf_reg_size, dev_cap->bf_regs_per_page);
+ } else {
+ dev_cap->bf_reg_size = 0;
+ mlx4_dbg(dev, "BlueFlame not available\n");
+ }
+
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SG_SQ_OFFSET);
+ dev_cap->max_sq_sg = field;
+ MLX4_GET(size, outbox, QUERY_DEV_CAP_MAX_DESC_SZ_SQ_OFFSET);
+ dev_cap->max_sq_desc_sz = size;
+
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_QP_MCG_OFFSET);
+ dev_cap->max_qp_per_mcg = 1 << field;
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_MCG_OFFSET);
+ dev_cap->reserved_mgms = field & 0xf;
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MCG_OFFSET);
+ dev_cap->max_mcgs = 1 << field;
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_PD_OFFSET);
+ dev_cap->reserved_pds = field >> 4;
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_PD_OFFSET);
+ dev_cap->max_pds = 1 << (field & 0x3f);
+
+ MLX4_GET(size, outbox, QUERY_DEV_CAP_RDMARC_ENTRY_SZ_OFFSET);
+ dev_cap->rdmarc_entry_sz = size;
+ MLX4_GET(size, outbox, QUERY_DEV_CAP_QPC_ENTRY_SZ_OFFSET);
+ dev_cap->qpc_entry_sz = size;
+ MLX4_GET(size, outbox, QUERY_DEV_CAP_AUX_ENTRY_SZ_OFFSET);
+ dev_cap->aux_entry_sz = size;
+ MLX4_GET(size, outbox, QUERY_DEV_CAP_ALTC_ENTRY_SZ_OFFSET);
+ dev_cap->altc_entry_sz = size;
+ MLX4_GET(size, outbox, QUERY_DEV_CAP_EQC_ENTRY_SZ_OFFSET);
+ dev_cap->eqc_entry_sz = size;
+ MLX4_GET(size, outbox, QUERY_DEV_CAP_CQC_ENTRY_SZ_OFFSET);
+ dev_cap->cqc_entry_sz = size;
+ MLX4_GET(size, outbox, QUERY_DEV_CAP_SRQ_ENTRY_SZ_OFFSET);
+ dev_cap->srq_entry_sz = size;
+ MLX4_GET(size, outbox, QUERY_DEV_CAP_C_MPT_ENTRY_SZ_OFFSET);
+ dev_cap->cmpt_entry_sz = size;
+ MLX4_GET(size, outbox, QUERY_DEV_CAP_MTT_ENTRY_SZ_OFFSET);
+ dev_cap->mtt_entry_sz = size;
+ MLX4_GET(size, outbox, QUERY_DEV_CAP_D_MPT_ENTRY_SZ_OFFSET);
+ dev_cap->dmpt_entry_sz = size;
+
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SRQ_SZ_OFFSET);
+ dev_cap->max_srq_sz = 1 << field;
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_QP_SZ_OFFSET);
+ dev_cap->max_qp_sz = 1 << field;
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_RSZ_SRQ_OFFSET);
+ dev_cap->resize_srq = field & 1;
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SG_RQ_OFFSET);
+ dev_cap->max_rq_sg = field;
+ MLX4_GET(size, outbox, QUERY_DEV_CAP_MAX_DESC_SZ_RQ_OFFSET);
+ dev_cap->max_rq_desc_sz = size;
+
+ MLX4_GET(dev_cap->bmme_flags, outbox,
+ QUERY_DEV_CAP_BMME_FLAGS_OFFSET);
+ MLX4_GET(dev_cap->reserved_lkey, outbox,
+ QUERY_DEV_CAP_RSVD_LKEY_OFFSET);
+ MLX4_GET(dev_cap->max_icm_sz, outbox,
+ QUERY_DEV_CAP_MAX_ICM_SZ_OFFSET);
+ if (dev_cap->flags & MLX4_DEV_CAP_FLAG_COUNTERS)
+ MLX4_GET(dev_cap->max_counters, outbox,
+ QUERY_DEV_CAP_MAX_COUNTERS_OFFSET);
+
+ if (dev->flags & MLX4_FLAG_OLD_PORT_CMDS) {
+ for (i = 1; i <= dev_cap->num_ports; ++i) {
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_VL_PORT_OFFSET);
+ dev_cap->max_vl[i] = field >> 4;
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_MTU_WIDTH_OFFSET);
+ dev_cap->ib_mtu[i] = field >> 4;
+ dev_cap->max_port_width[i] = field & 0xf;
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_GID_OFFSET);
+ dev_cap->max_gids[i] = 1 << (field & 0xf);
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_PKEY_OFFSET);
+ dev_cap->max_pkeys[i] = 1 << (field & 0xf);
+ }
+ } else {
+#define QUERY_PORT_SUPPORTED_TYPE_OFFSET 0x00
+#define QUERY_PORT_MTU_OFFSET 0x01
+#define QUERY_PORT_ETH_MTU_OFFSET 0x02
+#define QUERY_PORT_WIDTH_OFFSET 0x06
+#define QUERY_PORT_MAX_GID_PKEY_OFFSET 0x07
+#define QUERY_PORT_MAX_MACVLAN_OFFSET 0x0a
+#define QUERY_PORT_MAX_VL_OFFSET 0x0b
+#define QUERY_PORT_MAC_OFFSET 0x10
+#define QUERY_PORT_TRANS_VENDOR_OFFSET 0x18
+#define QUERY_PORT_WAVELENGTH_OFFSET 0x1c
+#define QUERY_PORT_TRANS_CODE_OFFSET 0x20
+
+ for (i = 1; i <= dev_cap->num_ports; ++i) {
+ err = mlx4_cmd_box(dev, 0, mailbox->dma, i, 0, MLX4_CMD_QUERY_PORT,
+ MLX4_CMD_TIME_CLASS_B);
+ if (err)
+ goto out;
+
+ MLX4_GET(field, outbox, QUERY_PORT_SUPPORTED_TYPE_OFFSET);
+ dev_cap->supported_port_types[i] = field & 3;
+ MLX4_GET(field, outbox, QUERY_PORT_MTU_OFFSET);
+ dev_cap->ib_mtu[i] = field & 0xf;
+ MLX4_GET(field, outbox, QUERY_PORT_WIDTH_OFFSET);
+ dev_cap->max_port_width[i] = field & 0xf;
+ MLX4_GET(field, outbox, QUERY_PORT_MAX_GID_PKEY_OFFSET);
+ dev_cap->max_gids[i] = 1 << (field >> 4);
+ dev_cap->max_pkeys[i] = 1 << (field & 0xf);
+ MLX4_GET(field, outbox, QUERY_PORT_MAX_VL_OFFSET);
+ dev_cap->max_vl[i] = field & 0xf;
+ MLX4_GET(field, outbox, QUERY_PORT_MAX_MACVLAN_OFFSET);
+ dev_cap->log_max_macs[i] = field & 0xf;
+ dev_cap->log_max_vlans[i] = field >> 4;
+ MLX4_GET(dev_cap->eth_mtu[i], outbox, QUERY_PORT_ETH_MTU_OFFSET);
+ MLX4_GET(dev_cap->def_mac[i], outbox, QUERY_PORT_MAC_OFFSET);
+ MLX4_GET(field32, outbox, QUERY_PORT_TRANS_VENDOR_OFFSET);
+ dev_cap->trans_type[i] = field32 >> 24;
+ dev_cap->vendor_oui[i] = field32 & 0xffffff;
+ MLX4_GET(dev_cap->wavelength[i], outbox, QUERY_PORT_WAVELENGTH_OFFSET);
+ MLX4_GET(dev_cap->trans_code[i], outbox, QUERY_PORT_TRANS_CODE_OFFSET);
+ }
+ }
+
+ mlx4_dbg(dev, "Base MM extensions: flags %08x, rsvd L_Key %08x\n",
+ dev_cap->bmme_flags, dev_cap->reserved_lkey);
+
+ /*
+ * Each UAR has 4 EQ doorbells; so if a UAR is reserved, then
+ * we can't use any EQs whose doorbell falls on that page,
+ * even if the EQ itself isn't reserved.
+ */
+ dev_cap->reserved_eqs = max(dev_cap->reserved_uars * 4,
+ dev_cap->reserved_eqs);
+
+ mlx4_dbg(dev, "Max ICM size %lld MB\n",
+ (unsigned long long) dev_cap->max_icm_sz >> 20);
+ mlx4_dbg(dev, "Max QPs: %d, reserved QPs: %d, entry size: %d\n",
+ dev_cap->max_qps, dev_cap->reserved_qps, dev_cap->qpc_entry_sz);
+ mlx4_dbg(dev, "Max SRQs: %d, reserved SRQs: %d, entry size: %d\n",
+ dev_cap->max_srqs, dev_cap->reserved_srqs, dev_cap->srq_entry_sz);
+ mlx4_dbg(dev, "Max CQs: %d, reserved CQs: %d, entry size: %d\n",
+ dev_cap->max_cqs, dev_cap->reserved_cqs, dev_cap->cqc_entry_sz);
+ mlx4_dbg(dev, "Max EQs: %d, reserved EQs: %d, entry size: %d\n",
+ dev_cap->max_eqs, dev_cap->reserved_eqs, dev_cap->eqc_entry_sz);
+ mlx4_dbg(dev, "reserved MPTs: %d, reserved MTTs: %d\n",
+ dev_cap->reserved_mrws, dev_cap->reserved_mtts);
+ mlx4_dbg(dev, "Max PDs: %d, reserved PDs: %d, reserved UARs: %d\n",
+ dev_cap->max_pds, dev_cap->reserved_pds, dev_cap->reserved_uars);
+ mlx4_dbg(dev, "Max QP/MCG: %d, reserved MGMs: %d\n",
+ dev_cap->max_pds, dev_cap->reserved_mgms);
+ mlx4_dbg(dev, "Max CQEs: %d, max WQEs: %d, max SRQ WQEs: %d\n",
+ dev_cap->max_cq_sz, dev_cap->max_qp_sz, dev_cap->max_srq_sz);
+ mlx4_dbg(dev, "Local CA ACK delay: %d, max MTU: %d, port width cap: %d\n",
+ dev_cap->local_ca_ack_delay, 128 << dev_cap->ib_mtu[1],
+ dev_cap->max_port_width[1]);
+ mlx4_dbg(dev, "Max SQ desc size: %d, max SQ S/G: %d\n",
+ dev_cap->max_sq_desc_sz, dev_cap->max_sq_sg);
+ mlx4_dbg(dev, "Max RQ desc size: %d, max RQ S/G: %d\n",
+ dev_cap->max_rq_desc_sz, dev_cap->max_rq_sg);
+ mlx4_dbg(dev, "Max GSO size: %d\n", dev_cap->max_gso_sz);
+ mlx4_dbg(dev, "Max counters: %d\n", dev_cap->max_counters);
+
+ dump_dev_cap_flags(dev, dev_cap->flags);
+
+out:
+ mlx4_free_cmd_mailbox(dev, mailbox);
+ return err;
+}
+
+int mlx4_map_cmd(struct mlx4_dev *dev, u16 op, struct mlx4_icm *icm, u64 virt)
+{
+ struct mlx4_cmd_mailbox *mailbox;
+ struct mlx4_icm_iter iter;
+ __be64 *pages;
+ int lg;
+ int nent = 0;
+ int i;
+ int err = 0;
+ int ts = 0, tc = 0;
+
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox))
+ return PTR_ERR(mailbox);
+ memset(mailbox->buf, 0, MLX4_MAILBOX_SIZE);
+ pages = mailbox->buf;
+
+ for (mlx4_icm_first(icm, &iter);
+ !mlx4_icm_last(&iter);
+ mlx4_icm_next(&iter)) {
+ /*
+ * We have to pass pages that are aligned to their
+ * size, so find the least significant 1 in the
+ * address or size and use that as our log2 size.
+ */
+ lg = ffs(mlx4_icm_addr(&iter) | mlx4_icm_size(&iter)) - 1;
+ if (lg < MLX4_ICM_PAGE_SHIFT) {
+ mlx4_warn(dev, "Got FW area not aligned to %d (%llx/%lx).\n",
+ MLX4_ICM_PAGE_SIZE,
+ (unsigned long long) mlx4_icm_addr(&iter),
+ mlx4_icm_size(&iter));
+ err = -EINVAL;
+ goto out;
+ }
+
+ for (i = 0; i < mlx4_icm_size(&iter) >> lg; ++i) {
+ if (virt != -1) {
+ pages[nent * 2] = cpu_to_be64(virt);
+ virt += 1 << lg;
+ }
+
+ pages[nent * 2 + 1] =
+ cpu_to_be64((mlx4_icm_addr(&iter) + (i << lg)) |
+ (lg - MLX4_ICM_PAGE_SHIFT));
+ ts += 1 << (lg - 10);
+ ++tc;
+
+ if (++nent == MLX4_MAILBOX_SIZE / 16) {
+ err = mlx4_cmd(dev, mailbox->dma, nent, 0, op,
+ MLX4_CMD_TIME_CLASS_B);
+ if (err)
+ goto out;
+ nent = 0;
+ }
+ }
+ }
+
+ if (nent)
+ err = mlx4_cmd(dev, mailbox->dma, nent, 0, op, MLX4_CMD_TIME_CLASS_B);
+ if (err)
+ goto out;
+
+ switch (op) {
+ case MLX4_CMD_MAP_FA:
+ mlx4_dbg(dev, "Mapped %d chunks/%d KB for FW.\n", tc, ts);
+ break;
+ case MLX4_CMD_MAP_ICM_AUX:
+ mlx4_dbg(dev, "Mapped %d chunks/%d KB for ICM aux.\n", tc, ts);
+ break;
+ case MLX4_CMD_MAP_ICM:
+ mlx4_dbg(dev, "Mapped %d chunks/%d KB at %llx for ICM.\n",
+ tc, ts, (unsigned long long) virt - (ts << 10));
+ break;
+ }
+
+out:
+ mlx4_free_cmd_mailbox(dev, mailbox);
+ return err;
+}
+
+int mlx4_MAP_FA(struct mlx4_dev *dev, struct mlx4_icm *icm)
+{
+ return mlx4_map_cmd(dev, MLX4_CMD_MAP_FA, icm, -1);
+}
+
+int mlx4_UNMAP_FA(struct mlx4_dev *dev)
+{
+ return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_UNMAP_FA, MLX4_CMD_TIME_CLASS_B);
+}
+
+
+int mlx4_RUN_FW(struct mlx4_dev *dev)
+{
+ return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_RUN_FW, MLX4_CMD_TIME_CLASS_A);
+}
+
+int mlx4_QUERY_FW(struct mlx4_dev *dev)
+{
+ struct mlx4_fw *fw = &mlx4_priv(dev)->fw;
+ struct mlx4_cmd *cmd = &mlx4_priv(dev)->cmd;
+ struct mlx4_cmd_mailbox *mailbox;
+ u32 *outbox;
+ int err = 0;
+ u64 fw_ver;
+ u16 cmd_if_rev;
+ u8 lg;
+
+#define QUERY_FW_OUT_SIZE 0x100
+#define QUERY_FW_VER_OFFSET 0x00
+#define QUERY_FW_CMD_IF_REV_OFFSET 0x0a
+#define QUERY_FW_MAX_CMD_OFFSET 0x0f
+#define QUERY_FW_ERR_START_OFFSET 0x30
+#define QUERY_FW_ERR_SIZE_OFFSET 0x38
+#define QUERY_FW_ERR_BAR_OFFSET 0x3c
+
+#define QUERY_FW_SIZE_OFFSET 0x00
+#define QUERY_FW_CLR_INT_BASE_OFFSET 0x20
+#define QUERY_FW_CLR_INT_BAR_OFFSET 0x28
+
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox))
+ return PTR_ERR(mailbox);
+ outbox = mailbox->buf;
+
+ err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_FW,
+ MLX4_CMD_TIME_CLASS_A);
+ if (err)
+ goto out;
+
+ MLX4_GET(fw_ver, outbox, QUERY_FW_VER_OFFSET);
+ /*
+ * FW subminor version is at more significant bits than minor
+ * version, so swap here.
+ */
+ dev->caps.fw_ver = (fw_ver & 0xffff00000000ull) |
+ ((fw_ver & 0xffff0000ull) >> 16) |
+ ((fw_ver & 0x0000ffffull) << 16);
+
+ MLX4_GET(cmd_if_rev, outbox, QUERY_FW_CMD_IF_REV_OFFSET);
+ if (cmd_if_rev < MLX4_COMMAND_INTERFACE_MIN_REV ||
+ cmd_if_rev > MLX4_COMMAND_INTERFACE_MAX_REV) {
+ mlx4_err(dev, "Installed FW has unsupported "
+ "command interface revision %d.\n",
+ cmd_if_rev);
+ mlx4_err(dev, "(Installed FW version is %d.%d.%03d)\n",
+ (int) (dev->caps.fw_ver >> 32),
+ (int) (dev->caps.fw_ver >> 16) & 0xffff,
+ (int) dev->caps.fw_ver & 0xffff);
+ mlx4_err(dev, "This driver version supports only revisions %d to %d.\n",
+ MLX4_COMMAND_INTERFACE_MIN_REV, MLX4_COMMAND_INTERFACE_MAX_REV);
+ err = -ENODEV;
+ goto out;
+ }
+
+ if (cmd_if_rev < MLX4_COMMAND_INTERFACE_NEW_PORT_CMDS)
+ dev->flags |= MLX4_FLAG_OLD_PORT_CMDS;
+
+ MLX4_GET(lg, outbox, QUERY_FW_MAX_CMD_OFFSET);
+ cmd->max_cmds = 1 << lg;
+
+ mlx4_dbg(dev, "FW version %d.%d.%03d (cmd intf rev %d), max commands %d\n",
+ (int) (dev->caps.fw_ver >> 32),
+ (int) (dev->caps.fw_ver >> 16) & 0xffff,
+ (int) dev->caps.fw_ver & 0xffff,
+ cmd_if_rev, cmd->max_cmds);
+
+ MLX4_GET(fw->catas_offset, outbox, QUERY_FW_ERR_START_OFFSET);
+ MLX4_GET(fw->catas_size, outbox, QUERY_FW_ERR_SIZE_OFFSET);
+ MLX4_GET(fw->catas_bar, outbox, QUERY_FW_ERR_BAR_OFFSET);
+ fw->catas_bar = (fw->catas_bar >> 6) * 2;
+
+ mlx4_dbg(dev, "Catastrophic error buffer at 0x%llx, size 0x%x, BAR %d\n",
+ (unsigned long long) fw->catas_offset, fw->catas_size, fw->catas_bar);
+
+ MLX4_GET(fw->fw_pages, outbox, QUERY_FW_SIZE_OFFSET);
+ MLX4_GET(fw->clr_int_base, outbox, QUERY_FW_CLR_INT_BASE_OFFSET);
+ MLX4_GET(fw->clr_int_bar, outbox, QUERY_FW_CLR_INT_BAR_OFFSET);
+ fw->clr_int_bar = (fw->clr_int_bar >> 6) * 2;
+
+ mlx4_dbg(dev, "FW size %d KB\n", fw->fw_pages >> 2);
+
+ /*
+ * Round up number of system pages needed in case
+ * MLX4_ICM_PAGE_SIZE < PAGE_SIZE.
+ */
+ fw->fw_pages =
+ ALIGN(fw->fw_pages, PAGE_SIZE / MLX4_ICM_PAGE_SIZE) >>
+ (PAGE_SHIFT - MLX4_ICM_PAGE_SHIFT);
+
+ mlx4_dbg(dev, "Clear int @ %llx, BAR %d\n",
+ (unsigned long long) fw->clr_int_base, fw->clr_int_bar);
+
+out:
+ mlx4_free_cmd_mailbox(dev, mailbox);
+ return err;
+}
+
+static void get_board_id(void *vsd, char *board_id)
+{
+ int i;
+
+#define VSD_OFFSET_SIG1 0x00
+#define VSD_OFFSET_SIG2 0xde
+#define VSD_OFFSET_MLX_BOARD_ID 0xd0
+#define VSD_OFFSET_TS_BOARD_ID 0x20
+
+#define VSD_SIGNATURE_TOPSPIN 0x5ad
+
+ memset(board_id, 0, MLX4_BOARD_ID_LEN);
+
+ if (be16_to_cpup(vsd + VSD_OFFSET_SIG1) == VSD_SIGNATURE_TOPSPIN &&
+ be16_to_cpup(vsd + VSD_OFFSET_SIG2) == VSD_SIGNATURE_TOPSPIN) {
+ strlcpy(board_id, vsd + VSD_OFFSET_TS_BOARD_ID, MLX4_BOARD_ID_LEN);
+ } else {
+ /*
+ * The board ID is a string but the firmware byte
+ * swaps each 4-byte word before passing it back to
+ * us. Therefore we need to swab it before printing.
+ */
+ for (i = 0; i < 4; ++i)
+ ((u32 *) board_id)[i] =
+ swab32(*(u32 *) (vsd + VSD_OFFSET_MLX_BOARD_ID + i * 4));
+ }
+}
+
+int mlx4_QUERY_ADAPTER(struct mlx4_dev *dev, struct mlx4_adapter *adapter)
+{
+ struct mlx4_cmd_mailbox *mailbox;
+ u32 *outbox;
+ int err;
+
+#define QUERY_ADAPTER_OUT_SIZE 0x100
+#define QUERY_ADAPTER_INTA_PIN_OFFSET 0x10
+#define QUERY_ADAPTER_VSD_OFFSET 0x20
+
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox))
+ return PTR_ERR(mailbox);
+ outbox = mailbox->buf;
+
+ err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_ADAPTER,
+ MLX4_CMD_TIME_CLASS_A);
+ if (err)
+ goto out;
+
+ MLX4_GET(adapter->inta_pin, outbox, QUERY_ADAPTER_INTA_PIN_OFFSET);
+
+ get_board_id(outbox + QUERY_ADAPTER_VSD_OFFSET / 4,
+ adapter->board_id);
+
+out:
+ mlx4_free_cmd_mailbox(dev, mailbox);
+ return err;
+}
+
+int mlx4_INIT_HCA(struct mlx4_dev *dev, struct mlx4_init_hca_param *param)
+{
+ struct mlx4_cmd_mailbox *mailbox;
+ __be32 *inbox;
+ int err;
+
+#define INIT_HCA_IN_SIZE 0x200
+#define INIT_HCA_VERSION_OFFSET 0x000
+#define INIT_HCA_VERSION 2
+#define INIT_HCA_CACHELINE_SZ_OFFSET 0x0e
+#define INIT_HCA_FLAGS_OFFSET 0x014
+#define INIT_HCA_QPC_OFFSET 0x020
+#define INIT_HCA_QPC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x10)
+#define INIT_HCA_LOG_QP_OFFSET (INIT_HCA_QPC_OFFSET + 0x17)
+#define INIT_HCA_SRQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x28)
+#define INIT_HCA_LOG_SRQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x2f)
+#define INIT_HCA_CQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x30)
+#define INIT_HCA_LOG_CQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x37)
+#define INIT_HCA_ALTC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x40)
+#define INIT_HCA_AUXC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x50)
+#define INIT_HCA_EQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x60)
+#define INIT_HCA_LOG_EQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x67)
+#define INIT_HCA_RDMARC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x70)
+#define INIT_HCA_LOG_RD_OFFSET (INIT_HCA_QPC_OFFSET + 0x77)
+#define INIT_HCA_MCAST_OFFSET 0x0c0
+#define INIT_HCA_MC_BASE_OFFSET (INIT_HCA_MCAST_OFFSET + 0x00)
+#define INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x12)
+#define INIT_HCA_LOG_MC_HASH_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x16)
+#define INIT_HCA_UC_STEERING_OFFSET (INIT_HCA_MCAST_OFFSET + 0x18)
+#define INIT_HCA_LOG_MC_TABLE_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x1b)
+#define INIT_HCA_TPT_OFFSET 0x0f0
+#define INIT_HCA_DMPT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x00)
+#define INIT_HCA_LOG_MPT_SZ_OFFSET (INIT_HCA_TPT_OFFSET + 0x0b)
+#define INIT_HCA_MTT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x10)
+#define INIT_HCA_CMPT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x18)
+#define INIT_HCA_UAR_OFFSET 0x120
+#define INIT_HCA_LOG_UAR_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x0a)
+#define INIT_HCA_UAR_PAGE_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x0b)
+
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox))
+ return PTR_ERR(mailbox);
+ inbox = mailbox->buf;
+
+ memset(inbox, 0, INIT_HCA_IN_SIZE);
+
+ *((u8 *) mailbox->buf + INIT_HCA_VERSION_OFFSET) = INIT_HCA_VERSION;
+
+ *((u8 *) mailbox->buf + INIT_HCA_CACHELINE_SZ_OFFSET) =
+ (ilog2(cache_line_size()) - 4) << 5;
+
+#if defined(__LITTLE_ENDIAN)
+ *(inbox + INIT_HCA_FLAGS_OFFSET / 4) &= ~cpu_to_be32(1 << 1);
+#elif defined(__BIG_ENDIAN)
+ *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 1);
+#else
+#error Host endianness not defined
+#endif
+ /* Check port for UD address vector: */
+ *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1);
+
+ /* Enable IPoIB checksumming if we can: */
+ if (dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM)
+ *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 3);
+
+ /* Enable QoS support if module parameter set */
+ if (enable_qos)
+ *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 2);
+
+ /* enable counters */
+ if (dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS)
+ *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 4);
+
+ /* QPC/EEC/CQC/EQC/RDMARC attributes */
+
+ MLX4_PUT(inbox, param->qpc_base, INIT_HCA_QPC_BASE_OFFSET);
+ MLX4_PUT(inbox, param->log_num_qps, INIT_HCA_LOG_QP_OFFSET);
+ MLX4_PUT(inbox, param->srqc_base, INIT_HCA_SRQC_BASE_OFFSET);
+ MLX4_PUT(inbox, param->log_num_srqs, INIT_HCA_LOG_SRQ_OFFSET);
+ MLX4_PUT(inbox, param->cqc_base, INIT_HCA_CQC_BASE_OFFSET);
+ MLX4_PUT(inbox, param->log_num_cqs, INIT_HCA_LOG_CQ_OFFSET);
+ MLX4_PUT(inbox, param->altc_base, INIT_HCA_ALTC_BASE_OFFSET);
+ MLX4_PUT(inbox, param->auxc_base, INIT_HCA_AUXC_BASE_OFFSET);
+ MLX4_PUT(inbox, param->eqc_base, INIT_HCA_EQC_BASE_OFFSET);
+ MLX4_PUT(inbox, param->log_num_eqs, INIT_HCA_LOG_EQ_OFFSET);
+ MLX4_PUT(inbox, param->rdmarc_base, INIT_HCA_RDMARC_BASE_OFFSET);
+ MLX4_PUT(inbox, param->log_rd_per_qp, INIT_HCA_LOG_RD_OFFSET);
+
+ /* multicast attributes */
+
+ MLX4_PUT(inbox, param->mc_base, INIT_HCA_MC_BASE_OFFSET);
+ MLX4_PUT(inbox, param->log_mc_entry_sz, INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET);
+ MLX4_PUT(inbox, param->log_mc_hash_sz, INIT_HCA_LOG_MC_HASH_SZ_OFFSET);
+ if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER)
+ MLX4_PUT(inbox, (u8) (1 << 3), INIT_HCA_UC_STEERING_OFFSET);
+ MLX4_PUT(inbox, param->log_mc_table_sz, INIT_HCA_LOG_MC_TABLE_SZ_OFFSET);
+
+ /* TPT attributes */
+
+ MLX4_PUT(inbox, param->dmpt_base, INIT_HCA_DMPT_BASE_OFFSET);
+ MLX4_PUT(inbox, param->log_mpt_sz, INIT_HCA_LOG_MPT_SZ_OFFSET);
+ MLX4_PUT(inbox, param->mtt_base, INIT_HCA_MTT_BASE_OFFSET);
+ MLX4_PUT(inbox, param->cmpt_base, INIT_HCA_CMPT_BASE_OFFSET);
+
+ /* UAR attributes */
+
+ MLX4_PUT(inbox, (u8) (PAGE_SHIFT - 12), INIT_HCA_UAR_PAGE_SZ_OFFSET);
+ MLX4_PUT(inbox, param->log_uar_sz, INIT_HCA_LOG_UAR_SZ_OFFSET);
+
+ err = mlx4_cmd(dev, mailbox->dma, 0, 0, MLX4_CMD_INIT_HCA, 10000);
+
+ if (err)
+ mlx4_err(dev, "INIT_HCA returns %d\n", err);
+
+ mlx4_free_cmd_mailbox(dev, mailbox);
+ return err;
+}
+
+int mlx4_INIT_PORT(struct mlx4_dev *dev, int port)
+{
+ struct mlx4_cmd_mailbox *mailbox;
+ u32 *inbox;
+ int err;
+ u32 flags;
+ u16 field;
+
+ if (dev->flags & MLX4_FLAG_OLD_PORT_CMDS) {
+#define INIT_PORT_IN_SIZE 256
+#define INIT_PORT_FLAGS_OFFSET 0x00
+#define INIT_PORT_FLAG_SIG (1 << 18)
+#define INIT_PORT_FLAG_NG (1 << 17)
+#define INIT_PORT_FLAG_G0 (1 << 16)
+#define INIT_PORT_VL_SHIFT 4
+#define INIT_PORT_PORT_WIDTH_SHIFT 8
+#define INIT_PORT_MTU_OFFSET 0x04
+#define INIT_PORT_MAX_GID_OFFSET 0x06
+#define INIT_PORT_MAX_PKEY_OFFSET 0x0a
+#define INIT_PORT_GUID0_OFFSET 0x10
+#define INIT_PORT_NODE_GUID_OFFSET 0x18
+#define INIT_PORT_SI_GUID_OFFSET 0x20
+
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox))
+ return PTR_ERR(mailbox);
+ inbox = mailbox->buf;
+
+ memset(inbox, 0, INIT_PORT_IN_SIZE);
+
+ flags = 0;
+ flags |= (dev->caps.vl_cap[port] & 0xf) << INIT_PORT_VL_SHIFT;
+ flags |= (dev->caps.port_width_cap[port] & 0xf) << INIT_PORT_PORT_WIDTH_SHIFT;
+ MLX4_PUT(inbox, flags, INIT_PORT_FLAGS_OFFSET);
+
+ field = 128 << dev->caps.ib_mtu_cap[port];
+ MLX4_PUT(inbox, field, INIT_PORT_MTU_OFFSET);
+ field = dev->caps.gid_table_len[port];
+ MLX4_PUT(inbox, field, INIT_PORT_MAX_GID_OFFSET);
+ field = dev->caps.pkey_table_len[port];
+ MLX4_PUT(inbox, field, INIT_PORT_MAX_PKEY_OFFSET);
+
+ err = mlx4_cmd(dev, mailbox->dma, port, 0, MLX4_CMD_INIT_PORT,
+ MLX4_CMD_TIME_CLASS_A);
+
+ mlx4_free_cmd_mailbox(dev, mailbox);
+ } else
+ err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_INIT_PORT,
+ MLX4_CMD_TIME_CLASS_A);
+
+ return err;
+}
+EXPORT_SYMBOL_GPL(mlx4_INIT_PORT);
+
+int mlx4_CLOSE_PORT(struct mlx4_dev *dev, int port)
+{
+ return mlx4_cmd(dev, 0, port, 0, MLX4_CMD_CLOSE_PORT, 1000);
+}
+EXPORT_SYMBOL_GPL(mlx4_CLOSE_PORT);
+
+int mlx4_CLOSE_HCA(struct mlx4_dev *dev, int panic)
+{
+ return mlx4_cmd(dev, 0, 0, panic, MLX4_CMD_CLOSE_HCA, 1000);
+}
+
+int mlx4_SET_ICM_SIZE(struct mlx4_dev *dev, u64 icm_size, u64 *aux_pages)
+{
+ int ret = mlx4_cmd_imm(dev, icm_size, aux_pages, 0, 0,
+ MLX4_CMD_SET_ICM_SIZE,
+ MLX4_CMD_TIME_CLASS_A);
+ if (ret)
+ return ret;
+
+ /*
+ * Round up number of system pages needed in case
+ * MLX4_ICM_PAGE_SIZE < PAGE_SIZE.
+ */
+ *aux_pages = ALIGN(*aux_pages, PAGE_SIZE / MLX4_ICM_PAGE_SIZE) >>
+ (PAGE_SHIFT - MLX4_ICM_PAGE_SHIFT);
+
+ return 0;
+}
+
+int mlx4_NOP(struct mlx4_dev *dev)
+{
+ /* Input modifier of 0x1f means "finish as soon as possible." */
+ return mlx4_cmd(dev, 0, 0x1f, 0, MLX4_CMD_NOP, 100);
+}
+
+#define MLX4_WOL_SETUP_MODE (5 << 28)
+int mlx4_wol_read(struct mlx4_dev *dev, u64 *config, int port)
+{
+ u32 in_mod = MLX4_WOL_SETUP_MODE | port << 8;
+
+ return mlx4_cmd_imm(dev, 0, config, in_mod, 0x3,
+ MLX4_CMD_MOD_STAT_CFG, MLX4_CMD_TIME_CLASS_A);
+}
+EXPORT_SYMBOL_GPL(mlx4_wol_read);
+
+int mlx4_wol_write(struct mlx4_dev *dev, u64 config, int port)
+{
+ u32 in_mod = MLX4_WOL_SETUP_MODE | port << 8;
+
+ return mlx4_cmd(dev, config, in_mod, 0x1, MLX4_CMD_MOD_STAT_CFG,
+ MLX4_CMD_TIME_CLASS_A);
+}
+EXPORT_SYMBOL_GPL(mlx4_wol_write);
--- /dev/null
+/*
+ * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
+ * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2006, 2007 Cisco Systems. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef MLX4_FW_H
+#define MLX4_FW_H
+
+#include "mlx4.h"
+#include "icm.h"
+
+struct mlx4_mod_stat_cfg {
+ u8 log_pg_sz;
+ u8 log_pg_sz_m;
+};
+
+struct mlx4_dev_cap {
+ int max_srq_sz;
+ int max_qp_sz;
+ int reserved_qps;
+ int max_qps;
+ int reserved_srqs;
+ int max_srqs;
+ int max_cq_sz;
+ int reserved_cqs;
+ int max_cqs;
+ int max_mpts;
+ int reserved_eqs;
+ int max_eqs;
+ int reserved_mtts;
+ int max_mrw_sz;
+ int reserved_mrws;
+ int max_mtt_seg;
+ int max_requester_per_qp;
+ int max_responder_per_qp;
+ int max_rdma_global;
+ int local_ca_ack_delay;
+ int num_ports;
+ u32 max_msg_sz;
+ int ib_mtu[MLX4_MAX_PORTS + 1];
+ int max_port_width[MLX4_MAX_PORTS + 1];
+ int max_vl[MLX4_MAX_PORTS + 1];
+ int max_gids[MLX4_MAX_PORTS + 1];
+ int max_pkeys[MLX4_MAX_PORTS + 1];
+ u64 def_mac[MLX4_MAX_PORTS + 1];
+ u16 eth_mtu[MLX4_MAX_PORTS + 1];
+ int trans_type[MLX4_MAX_PORTS + 1];
+ int vendor_oui[MLX4_MAX_PORTS + 1];
+ u16 wavelength[MLX4_MAX_PORTS + 1];
+ u64 trans_code[MLX4_MAX_PORTS + 1];
+ u16 stat_rate_support;
+ u64 flags;
+ int reserved_uars;
+ int uar_size;
+ int min_page_sz;
+ int bf_reg_size;
+ int bf_regs_per_page;
+ int max_sq_sg;
+ int max_sq_desc_sz;
+ int max_rq_sg;
+ int max_rq_desc_sz;
+ int max_qp_per_mcg;
+ int reserved_mgms;
+ int max_mcgs;
+ int reserved_pds;
+ int max_pds;
+ int qpc_entry_sz;
+ int rdmarc_entry_sz;
+ int altc_entry_sz;
+ int aux_entry_sz;
+ int srq_entry_sz;
+ int cqc_entry_sz;
+ int eqc_entry_sz;
+ int dmpt_entry_sz;
+ int cmpt_entry_sz;
+ int mtt_entry_sz;
+ int resize_srq;
+ u32 bmme_flags;
+ u32 reserved_lkey;
+ u64 max_icm_sz;
+ int max_gso_sz;
+ u8 supported_port_types[MLX4_MAX_PORTS + 1];
+ u8 log_max_macs[MLX4_MAX_PORTS + 1];
+ u8 log_max_vlans[MLX4_MAX_PORTS + 1];
+ u32 max_counters;
+};
+
+struct mlx4_adapter {
+ char board_id[MLX4_BOARD_ID_LEN];
+ u8 inta_pin;
+};
+
+struct mlx4_init_hca_param {
+ u64 qpc_base;
+ u64 rdmarc_base;
+ u64 auxc_base;
+ u64 altc_base;
+ u64 srqc_base;
+ u64 cqc_base;
+ u64 eqc_base;
+ u64 mc_base;
+ u64 dmpt_base;
+ u64 cmpt_base;
+ u64 mtt_base;
+ u16 log_mc_entry_sz;
+ u16 log_mc_hash_sz;
+ u8 log_num_qps;
+ u8 log_num_srqs;
+ u8 log_num_cqs;
+ u8 log_num_eqs;
+ u8 log_rd_per_qp;
+ u8 log_mc_table_sz;
+ u8 log_mpt_sz;
+ u8 log_uar_sz;
+};
+
+struct mlx4_init_ib_param {
+ int port_width;
+ int vl_cap;
+ int mtu_cap;
+ u16 gid_cap;
+ u16 pkey_cap;
+ int set_guid0;
+ u64 guid0;
+ int set_node_guid;
+ u64 node_guid;
+ int set_si_guid;
+ u64 si_guid;
+};
+
+struct mlx4_set_ib_param {
+ int set_si_guid;
+ int reset_qkey_viol;
+ u64 si_guid;
+ u32 cap_mask;
+};
+
+int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap);
+int mlx4_MAP_FA(struct mlx4_dev *dev, struct mlx4_icm *icm);
+int mlx4_UNMAP_FA(struct mlx4_dev *dev);
+int mlx4_RUN_FW(struct mlx4_dev *dev);
+int mlx4_QUERY_FW(struct mlx4_dev *dev);
+int mlx4_QUERY_ADAPTER(struct mlx4_dev *dev, struct mlx4_adapter *adapter);
+int mlx4_INIT_HCA(struct mlx4_dev *dev, struct mlx4_init_hca_param *param);
+int mlx4_CLOSE_HCA(struct mlx4_dev *dev, int panic);
+int mlx4_map_cmd(struct mlx4_dev *dev, u16 op, struct mlx4_icm *icm, u64 virt);
+int mlx4_SET_ICM_SIZE(struct mlx4_dev *dev, u64 icm_size, u64 *aux_pages);
+int mlx4_MAP_ICM_AUX(struct mlx4_dev *dev, struct mlx4_icm *icm);
+int mlx4_UNMAP_ICM_AUX(struct mlx4_dev *dev);
+int mlx4_NOP(struct mlx4_dev *dev);
+int mlx4_MOD_STAT_CFG(struct mlx4_dev *dev, struct mlx4_mod_stat_cfg *cfg);
+
+#endif /* MLX4_FW_H */
--- /dev/null
+/*
+ * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/errno.h>
+#include <linux/mm.h>
+#include <linux/scatterlist.h>
+#include <linux/slab.h>
+
+#include <linux/mlx4/cmd.h>
+
+#include "mlx4.h"
+#include "icm.h"
+#include "fw.h"
+
+/*
+ * We allocate in as big chunks as we can, up to a maximum of 256 KB
+ * per chunk.
+ */
+enum {
+ MLX4_ICM_ALLOC_SIZE = 1 << 18,
+ MLX4_TABLE_CHUNK_SIZE = 1 << 18
+};
+
+static void mlx4_free_icm_pages(struct mlx4_dev *dev, struct mlx4_icm_chunk *chunk)
+{
+ int i;
+
+ if (chunk->nsg > 0)
+ pci_unmap_sg(dev->pdev, chunk->mem, chunk->npages,
+ PCI_DMA_BIDIRECTIONAL);
+
+ for (i = 0; i < chunk->npages; ++i)
+ __free_pages(sg_page(&chunk->mem[i]),
+ get_order(chunk->mem[i].length));
+}
+
+static void mlx4_free_icm_coherent(struct mlx4_dev *dev, struct mlx4_icm_chunk *chunk)
+{
+ int i;
+
+ for (i = 0; i < chunk->npages; ++i)
+ dma_free_coherent(&dev->pdev->dev, chunk->mem[i].length,
+ lowmem_page_address(sg_page(&chunk->mem[i])),
+ sg_dma_address(&chunk->mem[i]));
+}
+
+void mlx4_free_icm(struct mlx4_dev *dev, struct mlx4_icm *icm, int coherent)
+{
+ struct mlx4_icm_chunk *chunk, *tmp;
+
+ if (!icm)
+ return;
+
+ list_for_each_entry_safe(chunk, tmp, &icm->chunk_list, list) {
+ if (coherent)
+ mlx4_free_icm_coherent(dev, chunk);
+ else
+ mlx4_free_icm_pages(dev, chunk);
+
+ kfree(chunk);
+ }
+
+ kfree(icm);
+}
+
+static int mlx4_alloc_icm_pages(struct scatterlist *mem, int order, gfp_t gfp_mask)
+{
+ struct page *page;
+
+ page = alloc_pages(gfp_mask, order);
+ if (!page)
+ return -ENOMEM;
+
+ sg_set_page(mem, page, PAGE_SIZE << order, 0);
+ return 0;
+}
+
+static int mlx4_alloc_icm_coherent(struct device *dev, struct scatterlist *mem,
+ int order, gfp_t gfp_mask)
+{
+ void *buf = dma_alloc_coherent(dev, PAGE_SIZE << order,
+ &sg_dma_address(mem), gfp_mask);
+ if (!buf)
+ return -ENOMEM;
+
+ sg_set_buf(mem, buf, PAGE_SIZE << order);
+ BUG_ON(mem->offset);
+ sg_dma_len(mem) = PAGE_SIZE << order;
+ return 0;
+}
+
+struct mlx4_icm *mlx4_alloc_icm(struct mlx4_dev *dev, int npages,
+ gfp_t gfp_mask, int coherent)
+{
+ struct mlx4_icm *icm;
+ struct mlx4_icm_chunk *chunk = NULL;
+ int cur_order;
+ int ret;
+
+ /* We use sg_set_buf for coherent allocs, which assumes low memory */
+ BUG_ON(coherent && (gfp_mask & __GFP_HIGHMEM));
+
+ icm = kmalloc(sizeof *icm, gfp_mask & ~(__GFP_HIGHMEM | __GFP_NOWARN));
+ if (!icm)
+ return NULL;
+
+ icm->refcount = 0;
+ INIT_LIST_HEAD(&icm->chunk_list);
+
+ cur_order = get_order(MLX4_ICM_ALLOC_SIZE);
+
+ while (npages > 0) {
+ if (!chunk) {
+ chunk = kmalloc(sizeof *chunk,
+ gfp_mask & ~(__GFP_HIGHMEM | __GFP_NOWARN));
+ if (!chunk)
+ goto fail;
+
+ sg_init_table(chunk->mem, MLX4_ICM_CHUNK_LEN);
+ chunk->npages = 0;
+ chunk->nsg = 0;
+ list_add_tail(&chunk->list, &icm->chunk_list);
+ }
+
+ while (1 << cur_order > npages)
+ --cur_order;
+
+ if (coherent)
+ ret = mlx4_alloc_icm_coherent(&dev->pdev->dev,
+ &chunk->mem[chunk->npages],
+ cur_order, gfp_mask);
+ else
+ ret = mlx4_alloc_icm_pages(&chunk->mem[chunk->npages],
+ cur_order, gfp_mask);
+
+ if (ret) {
+ if (--cur_order < 0)
+ goto fail;
+ else
+ continue;
+ }
+
+ ++chunk->npages;
+
+ if (coherent)
+ ++chunk->nsg;
+ else if (chunk->npages == MLX4_ICM_CHUNK_LEN) {
+ chunk->nsg = pci_map_sg(dev->pdev, chunk->mem,
+ chunk->npages,
+ PCI_DMA_BIDIRECTIONAL);
+
+ if (chunk->nsg <= 0)
+ goto fail;
+ }
+
+ if (chunk->npages == MLX4_ICM_CHUNK_LEN)
+ chunk = NULL;
+
+ npages -= 1 << cur_order;
+ }
+
+ if (!coherent && chunk) {
+ chunk->nsg = pci_map_sg(dev->pdev, chunk->mem,
+ chunk->npages,
+ PCI_DMA_BIDIRECTIONAL);
+
+ if (chunk->nsg <= 0)
+ goto fail;
+ }
+
+ return icm;
+
+fail:
+ mlx4_free_icm(dev, icm, coherent);
+ return NULL;
+}
+
+static int mlx4_MAP_ICM(struct mlx4_dev *dev, struct mlx4_icm *icm, u64 virt)
+{
+ return mlx4_map_cmd(dev, MLX4_CMD_MAP_ICM, icm, virt);
+}
+
+static int mlx4_UNMAP_ICM(struct mlx4_dev *dev, u64 virt, u32 page_count)
+{
+ return mlx4_cmd(dev, virt, page_count, 0, MLX4_CMD_UNMAP_ICM,
+ MLX4_CMD_TIME_CLASS_B);
+}
+
+int mlx4_MAP_ICM_AUX(struct mlx4_dev *dev, struct mlx4_icm *icm)
+{
+ return mlx4_map_cmd(dev, MLX4_CMD_MAP_ICM_AUX, icm, -1);
+}
+
+int mlx4_UNMAP_ICM_AUX(struct mlx4_dev *dev)
+{
+ return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_UNMAP_ICM_AUX, MLX4_CMD_TIME_CLASS_B);
+}
+
+int mlx4_table_get(struct mlx4_dev *dev, struct mlx4_icm_table *table, int obj)
+{
+ int i = (obj & (table->num_obj - 1)) / (MLX4_TABLE_CHUNK_SIZE / table->obj_size);
+ int ret = 0;
+
+ mutex_lock(&table->mutex);
+
+ if (table->icm[i]) {
+ ++table->icm[i]->refcount;
+ goto out;
+ }
+
+ table->icm[i] = mlx4_alloc_icm(dev, MLX4_TABLE_CHUNK_SIZE >> PAGE_SHIFT,
+ (table->lowmem ? GFP_KERNEL : GFP_HIGHUSER) |
+ __GFP_NOWARN, table->coherent);
+ if (!table->icm[i]) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ if (mlx4_MAP_ICM(dev, table->icm[i], table->virt +
+ (u64) i * MLX4_TABLE_CHUNK_SIZE)) {
+ mlx4_free_icm(dev, table->icm[i], table->coherent);
+ table->icm[i] = NULL;
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ ++table->icm[i]->refcount;
+
+out:
+ mutex_unlock(&table->mutex);
+ return ret;
+}
+
+void mlx4_table_put(struct mlx4_dev *dev, struct mlx4_icm_table *table, int obj)
+{
+ int i;
+
+ i = (obj & (table->num_obj - 1)) / (MLX4_TABLE_CHUNK_SIZE / table->obj_size);
+
+ mutex_lock(&table->mutex);
+
+ if (--table->icm[i]->refcount == 0) {
+ mlx4_UNMAP_ICM(dev, table->virt + i * MLX4_TABLE_CHUNK_SIZE,
+ MLX4_TABLE_CHUNK_SIZE / MLX4_ICM_PAGE_SIZE);
+ mlx4_free_icm(dev, table->icm[i], table->coherent);
+ table->icm[i] = NULL;
+ }
+
+ mutex_unlock(&table->mutex);
+}
+
+void *mlx4_table_find(struct mlx4_icm_table *table, int obj, dma_addr_t *dma_handle)
+{
+ int idx, offset, dma_offset, i;
+ struct mlx4_icm_chunk *chunk;
+ struct mlx4_icm *icm;
+ struct page *page = NULL;
+
+ if (!table->lowmem)
+ return NULL;
+
+ mutex_lock(&table->mutex);
+
+ idx = (obj & (table->num_obj - 1)) * table->obj_size;
+ icm = table->icm[idx / MLX4_TABLE_CHUNK_SIZE];
+ dma_offset = offset = idx % MLX4_TABLE_CHUNK_SIZE;
+
+ if (!icm)
+ goto out;
+
+ list_for_each_entry(chunk, &icm->chunk_list, list) {
+ for (i = 0; i < chunk->npages; ++i) {
+ if (dma_handle && dma_offset >= 0) {
+ if (sg_dma_len(&chunk->mem[i]) > dma_offset)
+ *dma_handle = sg_dma_address(&chunk->mem[i]) +
+ dma_offset;
+ dma_offset -= sg_dma_len(&chunk->mem[i]);
+ }
+ /*
+ * DMA mapping can merge pages but not split them,
+ * so if we found the page, dma_handle has already
+ * been assigned to.
+ */
+ if (chunk->mem[i].length > offset) {
+ page = sg_page(&chunk->mem[i]);
+ goto out;
+ }
+ offset -= chunk->mem[i].length;
+ }
+ }
+
+out:
+ mutex_unlock(&table->mutex);
+ return page ? lowmem_page_address(page) + offset : NULL;
+}
+
+int mlx4_table_get_range(struct mlx4_dev *dev, struct mlx4_icm_table *table,
+ int start, int end)
+{
+ int inc = MLX4_TABLE_CHUNK_SIZE / table->obj_size;
+ int i, err;
+
+ for (i = start; i <= end; i += inc) {
+ err = mlx4_table_get(dev, table, i);
+ if (err)
+ goto fail;
+ }
+
+ return 0;
+
+fail:
+ while (i > start) {
+ i -= inc;
+ mlx4_table_put(dev, table, i);
+ }
+
+ return err;
+}
+
+void mlx4_table_put_range(struct mlx4_dev *dev, struct mlx4_icm_table *table,
+ int start, int end)
+{
+ int i;
+
+ for (i = start; i <= end; i += MLX4_TABLE_CHUNK_SIZE / table->obj_size)
+ mlx4_table_put(dev, table, i);
+}
+
+int mlx4_init_icm_table(struct mlx4_dev *dev, struct mlx4_icm_table *table,
+ u64 virt, int obj_size, int nobj, int reserved,
+ int use_lowmem, int use_coherent)
+{
+ int obj_per_chunk;
+ int num_icm;
+ unsigned chunk_size;
+ int i;
+
+ obj_per_chunk = MLX4_TABLE_CHUNK_SIZE / obj_size;
+ num_icm = (nobj + obj_per_chunk - 1) / obj_per_chunk;
+
+ table->icm = kcalloc(num_icm, sizeof *table->icm, GFP_KERNEL);
+ if (!table->icm)
+ return -ENOMEM;
+ table->virt = virt;
+ table->num_icm = num_icm;
+ table->num_obj = nobj;
+ table->obj_size = obj_size;
+ table->lowmem = use_lowmem;
+ table->coherent = use_coherent;
+ mutex_init(&table->mutex);
+
+ for (i = 0; i * MLX4_TABLE_CHUNK_SIZE < reserved * obj_size; ++i) {
+ chunk_size = MLX4_TABLE_CHUNK_SIZE;
+ if ((i + 1) * MLX4_TABLE_CHUNK_SIZE > nobj * obj_size)
+ chunk_size = PAGE_ALIGN(nobj * obj_size - i * MLX4_TABLE_CHUNK_SIZE);
+
+ table->icm[i] = mlx4_alloc_icm(dev, chunk_size >> PAGE_SHIFT,
+ (use_lowmem ? GFP_KERNEL : GFP_HIGHUSER) |
+ __GFP_NOWARN, use_coherent);
+ if (!table->icm[i])
+ goto err;
+ if (mlx4_MAP_ICM(dev, table->icm[i], virt + i * MLX4_TABLE_CHUNK_SIZE)) {
+ mlx4_free_icm(dev, table->icm[i], use_coherent);
+ table->icm[i] = NULL;
+ goto err;
+ }
+
+ /*
+ * Add a reference to this ICM chunk so that it never
+ * gets freed (since it contains reserved firmware objects).
+ */
+ ++table->icm[i]->refcount;
+ }
+
+ return 0;
+
+err:
+ for (i = 0; i < num_icm; ++i)
+ if (table->icm[i]) {
+ mlx4_UNMAP_ICM(dev, virt + i * MLX4_TABLE_CHUNK_SIZE,
+ MLX4_TABLE_CHUNK_SIZE / MLX4_ICM_PAGE_SIZE);
+ mlx4_free_icm(dev, table->icm[i], use_coherent);
+ }
+
+ return -ENOMEM;
+}
+
+void mlx4_cleanup_icm_table(struct mlx4_dev *dev, struct mlx4_icm_table *table)
+{
+ int i;
+
+ for (i = 0; i < table->num_icm; ++i)
+ if (table->icm[i]) {
+ mlx4_UNMAP_ICM(dev, table->virt + i * MLX4_TABLE_CHUNK_SIZE,
+ MLX4_TABLE_CHUNK_SIZE / MLX4_ICM_PAGE_SIZE);
+ mlx4_free_icm(dev, table->icm[i], table->coherent);
+ }
+
+ kfree(table->icm);
+}
--- /dev/null
+/*
+ * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef MLX4_ICM_H
+#define MLX4_ICM_H
+
+#include <linux/list.h>
+#include <linux/pci.h>
+#include <linux/mutex.h>
+
+#define MLX4_ICM_CHUNK_LEN \
+ ((256 - sizeof (struct list_head) - 2 * sizeof (int)) / \
+ (sizeof (struct scatterlist)))
+
+enum {
+ MLX4_ICM_PAGE_SHIFT = 12,
+ MLX4_ICM_PAGE_SIZE = 1 << MLX4_ICM_PAGE_SHIFT,
+};
+
+struct mlx4_icm_chunk {
+ struct list_head list;
+ int npages;
+ int nsg;
+ struct scatterlist mem[MLX4_ICM_CHUNK_LEN];
+};
+
+struct mlx4_icm {
+ struct list_head chunk_list;
+ int refcount;
+};
+
+struct mlx4_icm_iter {
+ struct mlx4_icm *icm;
+ struct mlx4_icm_chunk *chunk;
+ int page_idx;
+};
+
+struct mlx4_dev;
+
+struct mlx4_icm *mlx4_alloc_icm(struct mlx4_dev *dev, int npages,
+ gfp_t gfp_mask, int coherent);
+void mlx4_free_icm(struct mlx4_dev *dev, struct mlx4_icm *icm, int coherent);
+
+int mlx4_table_get(struct mlx4_dev *dev, struct mlx4_icm_table *table, int obj);
+void mlx4_table_put(struct mlx4_dev *dev, struct mlx4_icm_table *table, int obj);
+int mlx4_table_get_range(struct mlx4_dev *dev, struct mlx4_icm_table *table,
+ int start, int end);
+void mlx4_table_put_range(struct mlx4_dev *dev, struct mlx4_icm_table *table,
+ int start, int end);
+int mlx4_init_icm_table(struct mlx4_dev *dev, struct mlx4_icm_table *table,
+ u64 virt, int obj_size, int nobj, int reserved,
+ int use_lowmem, int use_coherent);
+void mlx4_cleanup_icm_table(struct mlx4_dev *dev, struct mlx4_icm_table *table);
+int mlx4_table_get(struct mlx4_dev *dev, struct mlx4_icm_table *table, int obj);
+void mlx4_table_put(struct mlx4_dev *dev, struct mlx4_icm_table *table, int obj);
+void *mlx4_table_find(struct mlx4_icm_table *table, int obj, dma_addr_t *dma_handle);
+int mlx4_table_get_range(struct mlx4_dev *dev, struct mlx4_icm_table *table,
+ int start, int end);
+void mlx4_table_put_range(struct mlx4_dev *dev, struct mlx4_icm_table *table,
+ int start, int end);
+
+static inline void mlx4_icm_first(struct mlx4_icm *icm,
+ struct mlx4_icm_iter *iter)
+{
+ iter->icm = icm;
+ iter->chunk = list_empty(&icm->chunk_list) ?
+ NULL : list_entry(icm->chunk_list.next,
+ struct mlx4_icm_chunk, list);
+ iter->page_idx = 0;
+}
+
+static inline int mlx4_icm_last(struct mlx4_icm_iter *iter)
+{
+ return !iter->chunk;
+}
+
+static inline void mlx4_icm_next(struct mlx4_icm_iter *iter)
+{
+ if (++iter->page_idx >= iter->chunk->nsg) {
+ if (iter->chunk->list.next == &iter->icm->chunk_list) {
+ iter->chunk = NULL;
+ return;
+ }
+
+ iter->chunk = list_entry(iter->chunk->list.next,
+ struct mlx4_icm_chunk, list);
+ iter->page_idx = 0;
+ }
+}
+
+static inline dma_addr_t mlx4_icm_addr(struct mlx4_icm_iter *iter)
+{
+ return sg_dma_address(&iter->chunk->mem[iter->page_idx]);
+}
+
+static inline unsigned long mlx4_icm_size(struct mlx4_icm_iter *iter)
+{
+ return sg_dma_len(&iter->chunk->mem[iter->page_idx]);
+}
+
+int mlx4_MAP_ICM_AUX(struct mlx4_dev *dev, struct mlx4_icm *icm);
+int mlx4_UNMAP_ICM_AUX(struct mlx4_dev *dev);
+
+#endif /* MLX4_ICM_H */
--- /dev/null
+/*
+ * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
+ * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/slab.h>
+
+#include "mlx4.h"
+
+struct mlx4_device_context {
+ struct list_head list;
+ struct mlx4_interface *intf;
+ void *context;
+};
+
+static LIST_HEAD(intf_list);
+static LIST_HEAD(dev_list);
+static DEFINE_MUTEX(intf_mutex);
+
+static void mlx4_add_device(struct mlx4_interface *intf, struct mlx4_priv *priv)
+{
+ struct mlx4_device_context *dev_ctx;
+
+ dev_ctx = kmalloc(sizeof *dev_ctx, GFP_KERNEL);
+ if (!dev_ctx)
+ return;
+
+ dev_ctx->intf = intf;
+ dev_ctx->context = intf->add(&priv->dev);
+
+ if (dev_ctx->context) {
+ spin_lock_irq(&priv->ctx_lock);
+ list_add_tail(&dev_ctx->list, &priv->ctx_list);
+ spin_unlock_irq(&priv->ctx_lock);
+ } else
+ kfree(dev_ctx);
+}
+
+static void mlx4_remove_device(struct mlx4_interface *intf, struct mlx4_priv *priv)
+{
+ struct mlx4_device_context *dev_ctx;
+
+ list_for_each_entry(dev_ctx, &priv->ctx_list, list)
+ if (dev_ctx->intf == intf) {
+ spin_lock_irq(&priv->ctx_lock);
+ list_del(&dev_ctx->list);
+ spin_unlock_irq(&priv->ctx_lock);
+
+ intf->remove(&priv->dev, dev_ctx->context);
+ kfree(dev_ctx);
+ return;
+ }
+}
+
+int mlx4_register_interface(struct mlx4_interface *intf)
+{
+ struct mlx4_priv *priv;
+
+ if (!intf->add || !intf->remove)
+ return -EINVAL;
+
+ mutex_lock(&intf_mutex);
+
+ list_add_tail(&intf->list, &intf_list);
+ list_for_each_entry(priv, &dev_list, dev_list)
+ mlx4_add_device(intf, priv);
+
+ mutex_unlock(&intf_mutex);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mlx4_register_interface);
+
+void mlx4_unregister_interface(struct mlx4_interface *intf)
+{
+ struct mlx4_priv *priv;
+
+ mutex_lock(&intf_mutex);
+
+ list_for_each_entry(priv, &dev_list, dev_list)
+ mlx4_remove_device(intf, priv);
+
+ list_del(&intf->list);
+
+ mutex_unlock(&intf_mutex);
+}
+EXPORT_SYMBOL_GPL(mlx4_unregister_interface);
+
+void mlx4_dispatch_event(struct mlx4_dev *dev, enum mlx4_dev_event type, int port)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ struct mlx4_device_context *dev_ctx;
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->ctx_lock, flags);
+
+ list_for_each_entry(dev_ctx, &priv->ctx_list, list)
+ if (dev_ctx->intf->event)
+ dev_ctx->intf->event(dev, dev_ctx->context, type, port);
+
+ spin_unlock_irqrestore(&priv->ctx_lock, flags);
+}
+
+int mlx4_register_device(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ struct mlx4_interface *intf;
+
+ mutex_lock(&intf_mutex);
+
+ list_add_tail(&priv->dev_list, &dev_list);
+ list_for_each_entry(intf, &intf_list, list)
+ mlx4_add_device(intf, priv);
+
+ mutex_unlock(&intf_mutex);
+ mlx4_start_catas_poll(dev);
+
+ return 0;
+}
+
+void mlx4_unregister_device(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ struct mlx4_interface *intf;
+
+ mlx4_stop_catas_poll(dev);
+ mutex_lock(&intf_mutex);
+
+ list_for_each_entry(intf, &intf_list, list)
+ mlx4_remove_device(intf, priv);
+
+ list_del(&priv->dev_list);
+
+ mutex_unlock(&intf_mutex);
+}
+
+void *mlx4_get_protocol_dev(struct mlx4_dev *dev, enum mlx4_protocol proto, int port)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ struct mlx4_device_context *dev_ctx;
+ unsigned long flags;
+ void *result = NULL;
+
+ spin_lock_irqsave(&priv->ctx_lock, flags);
+
+ list_for_each_entry(dev_ctx, &priv->ctx_list, list)
+ if (dev_ctx->intf->protocol == proto && dev_ctx->intf->get_dev) {
+ result = dev_ctx->intf->get_dev(dev, dev_ctx->context, port);
+ break;
+ }
+
+ spin_unlock_irqrestore(&priv->ctx_lock, flags);
+
+ return result;
+}
+EXPORT_SYMBOL_GPL(mlx4_get_protocol_dev);
--- /dev/null
+/*
+ * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
+ * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
+ * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/pci.h>
+#include <linux/dma-mapping.h>
+#include <linux/slab.h>
+#include <linux/io-mapping.h>
+
+#include <linux/mlx4/device.h>
+#include <linux/mlx4/doorbell.h>
+
+#include "mlx4.h"
+#include "fw.h"
+#include "icm.h"
+
+MODULE_AUTHOR("Roland Dreier");
+MODULE_DESCRIPTION("Mellanox ConnectX HCA low-level driver");
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_VERSION(DRV_VERSION);
+
+struct workqueue_struct *mlx4_wq;
+
+#ifdef CONFIG_MLX4_DEBUG
+
+int mlx4_debug_level = 0;
+module_param_named(debug_level, mlx4_debug_level, int, 0644);
+MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0");
+
+#endif /* CONFIG_MLX4_DEBUG */
+
+#ifdef CONFIG_PCI_MSI
+
+static int msi_x = 1;
+module_param(msi_x, int, 0444);
+MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero");
+
+#else /* CONFIG_PCI_MSI */
+
+#define msi_x (0)
+
+#endif /* CONFIG_PCI_MSI */
+
+static char mlx4_version[] __devinitdata =
+ DRV_NAME ": Mellanox ConnectX core driver v"
+ DRV_VERSION " (" DRV_RELDATE ")\n";
+
+static struct mlx4_profile default_profile = {
+ .num_qp = 1 << 17,
+ .num_srq = 1 << 16,
+ .rdmarc_per_qp = 1 << 4,
+ .num_cq = 1 << 16,
+ .num_mcg = 1 << 13,
+ .num_mpt = 1 << 17,
+ .num_mtt = 1 << 20,
+};
+
+static int log_num_mac = 2;
+module_param_named(log_num_mac, log_num_mac, int, 0444);
+MODULE_PARM_DESC(log_num_mac, "Log2 max number of MACs per ETH port (1-7)");
+
+static int log_num_vlan;
+module_param_named(log_num_vlan, log_num_vlan, int, 0444);
+MODULE_PARM_DESC(log_num_vlan, "Log2 max number of VLANs per ETH port (0-7)");
+
+static int use_prio;
+module_param_named(use_prio, use_prio, bool, 0444);
+MODULE_PARM_DESC(use_prio, "Enable steering by VLAN priority on ETH ports "
+ "(0/1, default 0)");
+
+static int log_mtts_per_seg = ilog2(MLX4_MTT_ENTRY_PER_SEG);
+module_param_named(log_mtts_per_seg, log_mtts_per_seg, int, 0444);
+MODULE_PARM_DESC(log_mtts_per_seg, "Log2 number of MTT entries per segment (1-7)");
+
+int mlx4_check_port_params(struct mlx4_dev *dev,
+ enum mlx4_port_type *port_type)
+{
+ int i;
+
+ for (i = 0; i < dev->caps.num_ports - 1; i++) {
+ if (port_type[i] != port_type[i + 1]) {
+ if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP)) {
+ mlx4_err(dev, "Only same port types supported "
+ "on this HCA, aborting.\n");
+ return -EINVAL;
+ }
+ if (port_type[i] == MLX4_PORT_TYPE_ETH &&
+ port_type[i + 1] == MLX4_PORT_TYPE_IB)
+ return -EINVAL;
+ }
+ }
+
+ for (i = 0; i < dev->caps.num_ports; i++) {
+ if (!(port_type[i] & dev->caps.supported_type[i+1])) {
+ mlx4_err(dev, "Requested port type for port %d is not "
+ "supported on this HCA\n", i + 1);
+ return -EINVAL;
+ }
+ }
+ return 0;
+}
+
+static void mlx4_set_port_mask(struct mlx4_dev *dev)
+{
+ int i;
+
+ dev->caps.port_mask = 0;
+ for (i = 1; i <= dev->caps.num_ports; ++i)
+ if (dev->caps.port_type[i] == MLX4_PORT_TYPE_IB)
+ dev->caps.port_mask |= 1 << (i - 1);
+}
+
+static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
+{
+ int err;
+ int i;
+
+ err = mlx4_QUERY_DEV_CAP(dev, dev_cap);
+ if (err) {
+ mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
+ return err;
+ }
+
+ if (dev_cap->min_page_sz > PAGE_SIZE) {
+ mlx4_err(dev, "HCA minimum page size of %d bigger than "
+ "kernel PAGE_SIZE of %ld, aborting.\n",
+ dev_cap->min_page_sz, PAGE_SIZE);
+ return -ENODEV;
+ }
+ if (dev_cap->num_ports > MLX4_MAX_PORTS) {
+ mlx4_err(dev, "HCA has %d ports, but we only support %d, "
+ "aborting.\n",
+ dev_cap->num_ports, MLX4_MAX_PORTS);
+ return -ENODEV;
+ }
+
+ if (dev_cap->uar_size > pci_resource_len(dev->pdev, 2)) {
+ mlx4_err(dev, "HCA reported UAR size of 0x%x bigger than "
+ "PCI resource 2 size of 0x%llx, aborting.\n",
+ dev_cap->uar_size,
+ (unsigned long long) pci_resource_len(dev->pdev, 2));
+ return -ENODEV;
+ }
+
+ dev->caps.num_ports = dev_cap->num_ports;
+ for (i = 1; i <= dev->caps.num_ports; ++i) {
+ dev->caps.vl_cap[i] = dev_cap->max_vl[i];
+ dev->caps.ib_mtu_cap[i] = dev_cap->ib_mtu[i];
+ dev->caps.gid_table_len[i] = dev_cap->max_gids[i];
+ dev->caps.pkey_table_len[i] = dev_cap->max_pkeys[i];
+ dev->caps.port_width_cap[i] = dev_cap->max_port_width[i];
+ dev->caps.eth_mtu_cap[i] = dev_cap->eth_mtu[i];
+ dev->caps.def_mac[i] = dev_cap->def_mac[i];
+ dev->caps.supported_type[i] = dev_cap->supported_port_types[i];
+ dev->caps.trans_type[i] = dev_cap->trans_type[i];
+ dev->caps.vendor_oui[i] = dev_cap->vendor_oui[i];
+ dev->caps.wavelength[i] = dev_cap->wavelength[i];
+ dev->caps.trans_code[i] = dev_cap->trans_code[i];
+ }
+
+ dev->caps.num_uars = dev_cap->uar_size / PAGE_SIZE;
+ dev->caps.local_ca_ack_delay = dev_cap->local_ca_ack_delay;
+ dev->caps.bf_reg_size = dev_cap->bf_reg_size;
+ dev->caps.bf_regs_per_page = dev_cap->bf_regs_per_page;
+ dev->caps.max_sq_sg = dev_cap->max_sq_sg;
+ dev->caps.max_rq_sg = dev_cap->max_rq_sg;
+ dev->caps.max_wqes = dev_cap->max_qp_sz;
+ dev->caps.max_qp_init_rdma = dev_cap->max_requester_per_qp;
+ dev->caps.max_srq_wqes = dev_cap->max_srq_sz;
+ dev->caps.max_srq_sge = dev_cap->max_rq_sg - 1;
+ dev->caps.reserved_srqs = dev_cap->reserved_srqs;
+ dev->caps.max_sq_desc_sz = dev_cap->max_sq_desc_sz;
+ dev->caps.max_rq_desc_sz = dev_cap->max_rq_desc_sz;
+ dev->caps.num_qp_per_mgm = MLX4_QP_PER_MGM;
+ /*
+ * Subtract 1 from the limit because we need to allocate a
+ * spare CQE so the HCA HW can tell the difference between an
+ * empty CQ and a full CQ.
+ */
+ dev->caps.max_cqes = dev_cap->max_cq_sz - 1;
+ dev->caps.reserved_cqs = dev_cap->reserved_cqs;
+ dev->caps.reserved_eqs = dev_cap->reserved_eqs;
+ dev->caps.mtts_per_seg = 1 << log_mtts_per_seg;
+ dev->caps.reserved_mtts = DIV_ROUND_UP(dev_cap->reserved_mtts,
+ dev->caps.mtts_per_seg);
+ dev->caps.reserved_mrws = dev_cap->reserved_mrws;
+ dev->caps.reserved_uars = dev_cap->reserved_uars;
+ dev->caps.reserved_pds = dev_cap->reserved_pds;
+ dev->caps.mtt_entry_sz = dev->caps.mtts_per_seg * dev_cap->mtt_entry_sz;
+ dev->caps.max_msg_sz = dev_cap->max_msg_sz;
+ dev->caps.page_size_cap = ~(u32) (dev_cap->min_page_sz - 1);
+ dev->caps.flags = dev_cap->flags;
+ dev->caps.bmme_flags = dev_cap->bmme_flags;
+ dev->caps.reserved_lkey = dev_cap->reserved_lkey;
+ dev->caps.stat_rate_support = dev_cap->stat_rate_support;
+ dev->caps.max_gso_sz = dev_cap->max_gso_sz;
+
+ dev->caps.log_num_macs = log_num_mac;
+ dev->caps.log_num_vlans = log_num_vlan;
+ dev->caps.log_num_prios = use_prio ? 3 : 0;
+
+ for (i = 1; i <= dev->caps.num_ports; ++i) {
+ if (dev->caps.supported_type[i] != MLX4_PORT_TYPE_ETH)
+ dev->caps.port_type[i] = MLX4_PORT_TYPE_IB;
+ else
+ dev->caps.port_type[i] = MLX4_PORT_TYPE_ETH;
+ dev->caps.possible_type[i] = dev->caps.port_type[i];
+ mlx4_priv(dev)->sense.sense_allowed[i] =
+ dev->caps.supported_type[i] == MLX4_PORT_TYPE_AUTO;
+
+ if (dev->caps.log_num_macs > dev_cap->log_max_macs[i]) {
+ dev->caps.log_num_macs = dev_cap->log_max_macs[i];
+ mlx4_warn(dev, "Requested number of MACs is too much "
+ "for port %d, reducing to %d.\n",
+ i, 1 << dev->caps.log_num_macs);
+ }
+ if (dev->caps.log_num_vlans > dev_cap->log_max_vlans[i]) {
+ dev->caps.log_num_vlans = dev_cap->log_max_vlans[i];
+ mlx4_warn(dev, "Requested number of VLANs is too much "
+ "for port %d, reducing to %d.\n",
+ i, 1 << dev->caps.log_num_vlans);
+ }
+ }
+
+ mlx4_set_port_mask(dev);
+
+ dev->caps.max_counters = 1 << ilog2(dev_cap->max_counters);
+
+ dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] = dev_cap->reserved_qps;
+ dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] =
+ dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] =
+ (1 << dev->caps.log_num_macs) *
+ (1 << dev->caps.log_num_vlans) *
+ (1 << dev->caps.log_num_prios) *
+ dev->caps.num_ports;
+ dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH] = MLX4_NUM_FEXCH;
+
+ dev->caps.reserved_qps = dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] +
+ dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] +
+ dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] +
+ dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH];
+
+ return 0;
+}
+
+/*
+ * Change the port configuration of the device.
+ * Every user of this function must hold the port mutex.
+ */
+int mlx4_change_port_types(struct mlx4_dev *dev,
+ enum mlx4_port_type *port_types)
+{
+ int err = 0;
+ int change = 0;
+ int port;
+
+ for (port = 0; port < dev->caps.num_ports; port++) {
+ /* Change the port type only if the new type is different
+ * from the current, and not set to Auto */
+ if (port_types[port] != dev->caps.port_type[port + 1]) {
+ change = 1;
+ dev->caps.port_type[port + 1] = port_types[port];
+ }
+ }
+ if (change) {
+ mlx4_unregister_device(dev);
+ for (port = 1; port <= dev->caps.num_ports; port++) {
+ mlx4_CLOSE_PORT(dev, port);
+ err = mlx4_SET_PORT(dev, port);
+ if (err) {
+ mlx4_err(dev, "Failed to set port %d, "
+ "aborting\n", port);
+ goto out;
+ }
+ }
+ mlx4_set_port_mask(dev);
+ err = mlx4_register_device(dev);
+ }
+
+out:
+ return err;
+}
+
+static ssize_t show_port_type(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
+ port_attr);
+ struct mlx4_dev *mdev = info->dev;
+ char type[8];
+
+ sprintf(type, "%s",
+ (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_IB) ?
+ "ib" : "eth");
+ if (mdev->caps.possible_type[info->port] == MLX4_PORT_TYPE_AUTO)
+ sprintf(buf, "auto (%s)\n", type);
+ else
+ sprintf(buf, "%s\n", type);
+
+ return strlen(buf);
+}
+
+static ssize_t set_port_type(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
+ port_attr);
+ struct mlx4_dev *mdev = info->dev;
+ struct mlx4_priv *priv = mlx4_priv(mdev);
+ enum mlx4_port_type types[MLX4_MAX_PORTS];
+ enum mlx4_port_type new_types[MLX4_MAX_PORTS];
+ int i;
+ int err = 0;
+
+ if (!strcmp(buf, "ib\n"))
+ info->tmp_type = MLX4_PORT_TYPE_IB;
+ else if (!strcmp(buf, "eth\n"))
+ info->tmp_type = MLX4_PORT_TYPE_ETH;
+ else if (!strcmp(buf, "auto\n"))
+ info->tmp_type = MLX4_PORT_TYPE_AUTO;
+ else {
+ mlx4_err(mdev, "%s is not supported port type\n", buf);
+ return -EINVAL;
+ }
+
+ mlx4_stop_sense(mdev);
+ mutex_lock(&priv->port_mutex);
+ /* Possible type is always the one that was delivered */
+ mdev->caps.possible_type[info->port] = info->tmp_type;
+
+ for (i = 0; i < mdev->caps.num_ports; i++) {
+ types[i] = priv->port[i+1].tmp_type ? priv->port[i+1].tmp_type :
+ mdev->caps.possible_type[i+1];
+ if (types[i] == MLX4_PORT_TYPE_AUTO)
+ types[i] = mdev->caps.port_type[i+1];
+ }
+
+ if (!(mdev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP)) {
+ for (i = 1; i <= mdev->caps.num_ports; i++) {
+ if (mdev->caps.possible_type[i] == MLX4_PORT_TYPE_AUTO) {
+ mdev->caps.possible_type[i] = mdev->caps.port_type[i];
+ err = -EINVAL;
+ }
+ }
+ }
+ if (err) {
+ mlx4_err(mdev, "Auto sensing is not supported on this HCA. "
+ "Set only 'eth' or 'ib' for both ports "
+ "(should be the same)\n");
+ goto out;
+ }
+
+ mlx4_do_sense_ports(mdev, new_types, types);
+
+ err = mlx4_check_port_params(mdev, new_types);
+ if (err)
+ goto out;
+
+ /* We are about to apply the changes after the configuration
+ * was verified, no need to remember the temporary types
+ * any more */
+ for (i = 0; i < mdev->caps.num_ports; i++)
+ priv->port[i + 1].tmp_type = 0;
+
+ err = mlx4_change_port_types(mdev, new_types);
+
+out:
+ mlx4_start_sense(mdev);
+ mutex_unlock(&priv->port_mutex);
+ return err ? err : count;
+}
+
+static int mlx4_load_fw(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ int err;
+
+ priv->fw.fw_icm = mlx4_alloc_icm(dev, priv->fw.fw_pages,
+ GFP_HIGHUSER | __GFP_NOWARN, 0);
+ if (!priv->fw.fw_icm) {
+ mlx4_err(dev, "Couldn't allocate FW area, aborting.\n");
+ return -ENOMEM;
+ }
+
+ err = mlx4_MAP_FA(dev, priv->fw.fw_icm);
+ if (err) {
+ mlx4_err(dev, "MAP_FA command failed, aborting.\n");
+ goto err_free;
+ }
+
+ err = mlx4_RUN_FW(dev);
+ if (err) {
+ mlx4_err(dev, "RUN_FW command failed, aborting.\n");
+ goto err_unmap_fa;
+ }
+
+ return 0;
+
+err_unmap_fa:
+ mlx4_UNMAP_FA(dev);
+
+err_free:
+ mlx4_free_icm(dev, priv->fw.fw_icm, 0);
+ return err;
+}
+
+static int mlx4_init_cmpt_table(struct mlx4_dev *dev, u64 cmpt_base,
+ int cmpt_entry_sz)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ int err;
+
+ err = mlx4_init_icm_table(dev, &priv->qp_table.cmpt_table,
+ cmpt_base +
+ ((u64) (MLX4_CMPT_TYPE_QP *
+ cmpt_entry_sz) << MLX4_CMPT_SHIFT),
+ cmpt_entry_sz, dev->caps.num_qps,
+ dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
+ 0, 0);
+ if (err)
+ goto err;
+
+ err = mlx4_init_icm_table(dev, &priv->srq_table.cmpt_table,
+ cmpt_base +
+ ((u64) (MLX4_CMPT_TYPE_SRQ *
+ cmpt_entry_sz) << MLX4_CMPT_SHIFT),
+ cmpt_entry_sz, dev->caps.num_srqs,
+ dev->caps.reserved_srqs, 0, 0);
+ if (err)
+ goto err_qp;
+
+ err = mlx4_init_icm_table(dev, &priv->cq_table.cmpt_table,
+ cmpt_base +
+ ((u64) (MLX4_CMPT_TYPE_CQ *
+ cmpt_entry_sz) << MLX4_CMPT_SHIFT),
+ cmpt_entry_sz, dev->caps.num_cqs,
+ dev->caps.reserved_cqs, 0, 0);
+ if (err)
+ goto err_srq;
+
+ err = mlx4_init_icm_table(dev, &priv->eq_table.cmpt_table,
+ cmpt_base +
+ ((u64) (MLX4_CMPT_TYPE_EQ *
+ cmpt_entry_sz) << MLX4_CMPT_SHIFT),
+ cmpt_entry_sz,
+ dev->caps.num_eqs, dev->caps.num_eqs, 0, 0);
+ if (err)
+ goto err_cq;
+
+ return 0;
+
+err_cq:
+ mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
+
+err_srq:
+ mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
+
+err_qp:
+ mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
+
+err:
+ return err;
+}
+
+static int mlx4_init_icm(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap,
+ struct mlx4_init_hca_param *init_hca, u64 icm_size)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ u64 aux_pages;
+ int err;
+
+ err = mlx4_SET_ICM_SIZE(dev, icm_size, &aux_pages);
+ if (err) {
+ mlx4_err(dev, "SET_ICM_SIZE command failed, aborting.\n");
+ return err;
+ }
+
+ mlx4_dbg(dev, "%lld KB of HCA context requires %lld KB aux memory.\n",
+ (unsigned long long) icm_size >> 10,
+ (unsigned long long) aux_pages << 2);
+
+ priv->fw.aux_icm = mlx4_alloc_icm(dev, aux_pages,
+ GFP_HIGHUSER | __GFP_NOWARN, 0);
+ if (!priv->fw.aux_icm) {
+ mlx4_err(dev, "Couldn't allocate aux memory, aborting.\n");
+ return -ENOMEM;
+ }
+
+ err = mlx4_MAP_ICM_AUX(dev, priv->fw.aux_icm);
+ if (err) {
+ mlx4_err(dev, "MAP_ICM_AUX command failed, aborting.\n");
+ goto err_free_aux;
+ }
+
+ err = mlx4_init_cmpt_table(dev, init_hca->cmpt_base, dev_cap->cmpt_entry_sz);
+ if (err) {
+ mlx4_err(dev, "Failed to map cMPT context memory, aborting.\n");
+ goto err_unmap_aux;
+ }
+
+ err = mlx4_init_icm_table(dev, &priv->eq_table.table,
+ init_hca->eqc_base, dev_cap->eqc_entry_sz,
+ dev->caps.num_eqs, dev->caps.num_eqs,
+ 0, 0);
+ if (err) {
+ mlx4_err(dev, "Failed to map EQ context memory, aborting.\n");
+ goto err_unmap_cmpt;
+ }
+
+ /*
+ * Reserved MTT entries must be aligned up to a cacheline
+ * boundary, since the FW will write to them, while the driver
+ * writes to all other MTT entries. (The variable
+ * dev->caps.mtt_entry_sz below is really the MTT segment
+ * size, not the raw entry size)
+ */
+ dev->caps.reserved_mtts =
+ ALIGN(dev->caps.reserved_mtts * dev->caps.mtt_entry_sz,
+ dma_get_cache_alignment()) / dev->caps.mtt_entry_sz;
+
+ err = mlx4_init_icm_table(dev, &priv->mr_table.mtt_table,
+ init_hca->mtt_base,
+ dev->caps.mtt_entry_sz,
+ dev->caps.num_mtt_segs,
+ dev->caps.reserved_mtts, 1, 0);
+ if (err) {
+ mlx4_err(dev, "Failed to map MTT context memory, aborting.\n");
+ goto err_unmap_eq;
+ }
+
+ err = mlx4_init_icm_table(dev, &priv->mr_table.dmpt_table,
+ init_hca->dmpt_base,
+ dev_cap->dmpt_entry_sz,
+ dev->caps.num_mpts,
+ dev->caps.reserved_mrws, 1, 1);
+ if (err) {
+ mlx4_err(dev, "Failed to map dMPT context memory, aborting.\n");
+ goto err_unmap_mtt;
+ }
+
+ err = mlx4_init_icm_table(dev, &priv->qp_table.qp_table,
+ init_hca->qpc_base,
+ dev_cap->qpc_entry_sz,
+ dev->caps.num_qps,
+ dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
+ 0, 0);
+ if (err) {
+ mlx4_err(dev, "Failed to map QP context memory, aborting.\n");
+ goto err_unmap_dmpt;
+ }
+
+ err = mlx4_init_icm_table(dev, &priv->qp_table.auxc_table,
+ init_hca->auxc_base,
+ dev_cap->aux_entry_sz,
+ dev->caps.num_qps,
+ dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
+ 0, 0);
+ if (err) {
+ mlx4_err(dev, "Failed to map AUXC context memory, aborting.\n");
+ goto err_unmap_qp;
+ }
+
+ err = mlx4_init_icm_table(dev, &priv->qp_table.altc_table,
+ init_hca->altc_base,
+ dev_cap->altc_entry_sz,
+ dev->caps.num_qps,
+ dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
+ 0, 0);
+ if (err) {
+ mlx4_err(dev, "Failed to map ALTC context memory, aborting.\n");
+ goto err_unmap_auxc;
+ }
+
+ err = mlx4_init_icm_table(dev, &priv->qp_table.rdmarc_table,
+ init_hca->rdmarc_base,
+ dev_cap->rdmarc_entry_sz << priv->qp_table.rdmarc_shift,
+ dev->caps.num_qps,
+ dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
+ 0, 0);
+ if (err) {
+ mlx4_err(dev, "Failed to map RDMARC context memory, aborting\n");
+ goto err_unmap_altc;
+ }
+
+ err = mlx4_init_icm_table(dev, &priv->cq_table.table,
+ init_hca->cqc_base,
+ dev_cap->cqc_entry_sz,
+ dev->caps.num_cqs,
+ dev->caps.reserved_cqs, 0, 0);
+ if (err) {
+ mlx4_err(dev, "Failed to map CQ context memory, aborting.\n");
+ goto err_unmap_rdmarc;
+ }
+
+ err = mlx4_init_icm_table(dev, &priv->srq_table.table,
+ init_hca->srqc_base,
+ dev_cap->srq_entry_sz,
+ dev->caps.num_srqs,
+ dev->caps.reserved_srqs, 0, 0);
+ if (err) {
+ mlx4_err(dev, "Failed to map SRQ context memory, aborting.\n");
+ goto err_unmap_cq;
+ }
+
+ /*
+ * It's not strictly required, but for simplicity just map the
+ * whole multicast group table now. The table isn't very big
+ * and it's a lot easier than trying to track ref counts.
+ */
+ err = mlx4_init_icm_table(dev, &priv->mcg_table.table,
+ init_hca->mc_base, MLX4_MGM_ENTRY_SIZE,
+ dev->caps.num_mgms + dev->caps.num_amgms,
+ dev->caps.num_mgms + dev->caps.num_amgms,
+ 0, 0);
+ if (err) {
+ mlx4_err(dev, "Failed to map MCG context memory, aborting.\n");
+ goto err_unmap_srq;
+ }
+
+ return 0;
+
+err_unmap_srq:
+ mlx4_cleanup_icm_table(dev, &priv->srq_table.table);
+
+err_unmap_cq:
+ mlx4_cleanup_icm_table(dev, &priv->cq_table.table);
+
+err_unmap_rdmarc:
+ mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table);
+
+err_unmap_altc:
+ mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table);
+
+err_unmap_auxc:
+ mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table);
+
+err_unmap_qp:
+ mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
+
+err_unmap_dmpt:
+ mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
+
+err_unmap_mtt:
+ mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
+
+err_unmap_eq:
+ mlx4_cleanup_icm_table(dev, &priv->eq_table.table);
+
+err_unmap_cmpt:
+ mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
+ mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
+ mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
+ mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
+
+err_unmap_aux:
+ mlx4_UNMAP_ICM_AUX(dev);
+
+err_free_aux:
+ mlx4_free_icm(dev, priv->fw.aux_icm, 0);
+
+ return err;
+}
+
+static void mlx4_free_icms(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+
+ mlx4_cleanup_icm_table(dev, &priv->mcg_table.table);
+ mlx4_cleanup_icm_table(dev, &priv->srq_table.table);
+ mlx4_cleanup_icm_table(dev, &priv->cq_table.table);
+ mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table);
+ mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table);
+ mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table);
+ mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
+ mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
+ mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
+ mlx4_cleanup_icm_table(dev, &priv->eq_table.table);
+ mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
+ mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
+ mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
+ mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
+
+ mlx4_UNMAP_ICM_AUX(dev);
+ mlx4_free_icm(dev, priv->fw.aux_icm, 0);
+}
+
+static int map_bf_area(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ resource_size_t bf_start;
+ resource_size_t bf_len;
+ int err = 0;
+
+ bf_start = pci_resource_start(dev->pdev, 2) + (dev->caps.num_uars << PAGE_SHIFT);
+ bf_len = pci_resource_len(dev->pdev, 2) - (dev->caps.num_uars << PAGE_SHIFT);
+ priv->bf_mapping = io_mapping_create_wc(bf_start, bf_len);
+ if (!priv->bf_mapping)
+ err = -ENOMEM;
+
+ return err;
+}
+
+static void unmap_bf_area(struct mlx4_dev *dev)
+{
+ if (mlx4_priv(dev)->bf_mapping)
+ io_mapping_free(mlx4_priv(dev)->bf_mapping);
+}
+
+static void mlx4_close_hca(struct mlx4_dev *dev)
+{
+ unmap_bf_area(dev);
+ mlx4_CLOSE_HCA(dev, 0);
+ mlx4_free_icms(dev);
+ mlx4_UNMAP_FA(dev);
+ mlx4_free_icm(dev, mlx4_priv(dev)->fw.fw_icm, 0);
+}
+
+static int mlx4_init_hca(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ struct mlx4_adapter adapter;
+ struct mlx4_dev_cap dev_cap;
+ struct mlx4_mod_stat_cfg mlx4_cfg;
+ struct mlx4_profile profile;
+ struct mlx4_init_hca_param init_hca;
+ u64 icm_size;
+ int err;
+
+ err = mlx4_QUERY_FW(dev);
+ if (err) {
+ if (err == -EACCES)
+ mlx4_info(dev, "non-primary physical function, skipping.\n");
+ else
+ mlx4_err(dev, "QUERY_FW command failed, aborting.\n");
+ return err;
+ }
+
+ err = mlx4_load_fw(dev);
+ if (err) {
+ mlx4_err(dev, "Failed to start FW, aborting.\n");
+ return err;
+ }
+
+ mlx4_cfg.log_pg_sz_m = 1;
+ mlx4_cfg.log_pg_sz = 0;
+ err = mlx4_MOD_STAT_CFG(dev, &mlx4_cfg);
+ if (err)
+ mlx4_warn(dev, "Failed to override log_pg_sz parameter\n");
+
+ err = mlx4_dev_cap(dev, &dev_cap);
+ if (err) {
+ mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
+ goto err_stop_fw;
+ }
+
+ profile = default_profile;
+
+ icm_size = mlx4_make_profile(dev, &profile, &dev_cap, &init_hca);
+ if ((long long) icm_size < 0) {
+ err = icm_size;
+ goto err_stop_fw;
+ }
+
+ if (map_bf_area(dev))
+ mlx4_dbg(dev, "Failed to map blue flame area\n");
+
+ init_hca.log_uar_sz = ilog2(dev->caps.num_uars);
+
+ err = mlx4_init_icm(dev, &dev_cap, &init_hca, icm_size);
+ if (err)
+ goto err_stop_fw;
+
+ err = mlx4_INIT_HCA(dev, &init_hca);
+ if (err) {
+ mlx4_err(dev, "INIT_HCA command failed, aborting.\n");
+ goto err_free_icm;
+ }
+
+ err = mlx4_QUERY_ADAPTER(dev, &adapter);
+ if (err) {
+ mlx4_err(dev, "QUERY_ADAPTER command failed, aborting.\n");
+ goto err_close;
+ }
+
+ priv->eq_table.inta_pin = adapter.inta_pin;
+ memcpy(dev->board_id, adapter.board_id, sizeof dev->board_id);
+
+ return 0;
+
+err_close:
+ mlx4_CLOSE_HCA(dev, 0);
+
+err_free_icm:
+ mlx4_free_icms(dev);
+
+err_stop_fw:
+ unmap_bf_area(dev);
+ mlx4_UNMAP_FA(dev);
+ mlx4_free_icm(dev, priv->fw.fw_icm, 0);
+
+ return err;
+}
+
+static int mlx4_init_counters_table(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ int nent;
+
+ if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS))
+ return -ENOENT;
+
+ nent = dev->caps.max_counters;
+ return mlx4_bitmap_init(&priv->counters_bitmap, nent, nent - 1, 0, 0);
+}
+
+static void mlx4_cleanup_counters_table(struct mlx4_dev *dev)
+{
+ mlx4_bitmap_cleanup(&mlx4_priv(dev)->counters_bitmap);
+}
+
+int mlx4_counter_alloc(struct mlx4_dev *dev, u32 *idx)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+
+ if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS))
+ return -ENOENT;
+
+ *idx = mlx4_bitmap_alloc(&priv->counters_bitmap);
+ if (*idx == -1)
+ return -ENOMEM;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mlx4_counter_alloc);
+
+void mlx4_counter_free(struct mlx4_dev *dev, u32 idx)
+{
+ mlx4_bitmap_free(&mlx4_priv(dev)->counters_bitmap, idx);
+ return;
+}
+EXPORT_SYMBOL_GPL(mlx4_counter_free);
+
+static int mlx4_setup_hca(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ int err;
+ int port;
+ __be32 ib_port_default_caps;
+
+ err = mlx4_init_uar_table(dev);
+ if (err) {
+ mlx4_err(dev, "Failed to initialize "
+ "user access region table, aborting.\n");
+ return err;
+ }
+
+ err = mlx4_uar_alloc(dev, &priv->driver_uar);
+ if (err) {
+ mlx4_err(dev, "Failed to allocate driver access region, "
+ "aborting.\n");
+ goto err_uar_table_free;
+ }
+
+ priv->kar = ioremap((phys_addr_t) priv->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
+ if (!priv->kar) {
+ mlx4_err(dev, "Couldn't map kernel access region, "
+ "aborting.\n");
+ err = -ENOMEM;
+ goto err_uar_free;
+ }
+
+ err = mlx4_init_pd_table(dev);
+ if (err) {
+ mlx4_err(dev, "Failed to initialize "
+ "protection domain table, aborting.\n");
+ goto err_kar_unmap;
+ }
+
+ err = mlx4_init_mr_table(dev);
+ if (err) {
+ mlx4_err(dev, "Failed to initialize "
+ "memory region table, aborting.\n");
+ goto err_pd_table_free;
+ }
+
+ err = mlx4_init_eq_table(dev);
+ if (err) {
+ mlx4_err(dev, "Failed to initialize "
+ "event queue table, aborting.\n");
+ goto err_mr_table_free;
+ }
+
+ err = mlx4_cmd_use_events(dev);
+ if (err) {
+ mlx4_err(dev, "Failed to switch to event-driven "
+ "firmware commands, aborting.\n");
+ goto err_eq_table_free;
+ }
+
+ err = mlx4_NOP(dev);
+ if (err) {
+ if (dev->flags & MLX4_FLAG_MSI_X) {
+ mlx4_warn(dev, "NOP command failed to generate MSI-X "
+ "interrupt IRQ %d).\n",
+ priv->eq_table.eq[dev->caps.num_comp_vectors].irq);
+ mlx4_warn(dev, "Trying again without MSI-X.\n");
+ } else {
+ mlx4_err(dev, "NOP command failed to generate interrupt "
+ "(IRQ %d), aborting.\n",
+ priv->eq_table.eq[dev->caps.num_comp_vectors].irq);
+ mlx4_err(dev, "BIOS or ACPI interrupt routing problem?\n");
+ }
+
+ goto err_cmd_poll;
+ }
+
+ mlx4_dbg(dev, "NOP command IRQ test passed\n");
+
+ err = mlx4_init_cq_table(dev);
+ if (err) {
+ mlx4_err(dev, "Failed to initialize "
+ "completion queue table, aborting.\n");
+ goto err_cmd_poll;
+ }
+
+ err = mlx4_init_srq_table(dev);
+ if (err) {
+ mlx4_err(dev, "Failed to initialize "
+ "shared receive queue table, aborting.\n");
+ goto err_cq_table_free;
+ }
+
+ err = mlx4_init_qp_table(dev);
+ if (err) {
+ mlx4_err(dev, "Failed to initialize "
+ "queue pair table, aborting.\n");
+ goto err_srq_table_free;
+ }
+
+ err = mlx4_init_mcg_table(dev);
+ if (err) {
+ mlx4_err(dev, "Failed to initialize "
+ "multicast group table, aborting.\n");
+ goto err_qp_table_free;
+ }
+
+ err = mlx4_init_counters_table(dev);
+ if (err && err != -ENOENT) {
+ mlx4_err(dev, "Failed to initialize counters table, aborting.\n");
+ goto err_counters_table_free;
+ }
+
+ for (port = 1; port <= dev->caps.num_ports; port++) {
+ enum mlx4_port_type port_type = 0;
+ mlx4_SENSE_PORT(dev, port, &port_type);
+ if (port_type)
+ dev->caps.port_type[port] = port_type;
+ ib_port_default_caps = 0;
+ err = mlx4_get_port_ib_caps(dev, port, &ib_port_default_caps);
+ if (err)
+ mlx4_warn(dev, "failed to get port %d default "
+ "ib capabilities (%d). Continuing with "
+ "caps = 0\n", port, err);
+ dev->caps.ib_port_def_cap[port] = ib_port_default_caps;
+ err = mlx4_SET_PORT(dev, port);
+ if (err) {
+ mlx4_err(dev, "Failed to set port %d, aborting\n",
+ port);
+ goto err_mcg_table_free;
+ }
+ }
+ mlx4_set_port_mask(dev);
+
+ return 0;
+
+err_mcg_table_free:
+ mlx4_cleanup_mcg_table(dev);
+
+err_counters_table_free:
+ mlx4_cleanup_counters_table(dev);
+
+err_qp_table_free:
+ mlx4_cleanup_qp_table(dev);
+
+err_srq_table_free:
+ mlx4_cleanup_srq_table(dev);
+
+err_cq_table_free:
+ mlx4_cleanup_cq_table(dev);
+
+err_cmd_poll:
+ mlx4_cmd_use_polling(dev);
+
+err_eq_table_free:
+ mlx4_cleanup_eq_table(dev);
+
+err_mr_table_free:
+ mlx4_cleanup_mr_table(dev);
+
+err_pd_table_free:
+ mlx4_cleanup_pd_table(dev);
+
+err_kar_unmap:
+ iounmap(priv->kar);
+
+err_uar_free:
+ mlx4_uar_free(dev, &priv->driver_uar);
+
+err_uar_table_free:
+ mlx4_cleanup_uar_table(dev);
+ return err;
+}
+
+static void mlx4_enable_msi_x(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ struct msix_entry *entries;
+ int nreq = min_t(int, dev->caps.num_ports *
+ min_t(int, num_online_cpus() + 1, MAX_MSIX_P_PORT)
+ + MSIX_LEGACY_SZ, MAX_MSIX);
+ int err;
+ int i;
+
+ if (msi_x) {
+ nreq = min_t(int, dev->caps.num_eqs - dev->caps.reserved_eqs,
+ nreq);
+ entries = kcalloc(nreq, sizeof *entries, GFP_KERNEL);
+ if (!entries)
+ goto no_msi;
+
+ for (i = 0; i < nreq; ++i)
+ entries[i].entry = i;
+
+ retry:
+ err = pci_enable_msix(dev->pdev, entries, nreq);
+ if (err) {
+ /* Try again if at least 2 vectors are available */
+ if (err > 1) {
+ mlx4_info(dev, "Requested %d vectors, "
+ "but only %d MSI-X vectors available, "
+ "trying again\n", nreq, err);
+ nreq = err;
+ goto retry;
+ }
+ kfree(entries);
+ goto no_msi;
+ }
+
+ if (nreq <
+ MSIX_LEGACY_SZ + dev->caps.num_ports * MIN_MSIX_P_PORT) {
+ /*Working in legacy mode , all EQ's shared*/
+ dev->caps.comp_pool = 0;
+ dev->caps.num_comp_vectors = nreq - 1;
+ } else {
+ dev->caps.comp_pool = nreq - MSIX_LEGACY_SZ;
+ dev->caps.num_comp_vectors = MSIX_LEGACY_SZ - 1;
+ }
+ for (i = 0; i < nreq; ++i)
+ priv->eq_table.eq[i].irq = entries[i].vector;
+
+ dev->flags |= MLX4_FLAG_MSI_X;
+
+ kfree(entries);
+ return;
+ }
+
+no_msi:
+ dev->caps.num_comp_vectors = 1;
+ dev->caps.comp_pool = 0;
+
+ for (i = 0; i < 2; ++i)
+ priv->eq_table.eq[i].irq = dev->pdev->irq;
+}
+
+static int mlx4_init_port_info(struct mlx4_dev *dev, int port)
+{
+ struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
+ int err = 0;
+
+ info->dev = dev;
+ info->port = port;
+ mlx4_init_mac_table(dev, &info->mac_table);
+ mlx4_init_vlan_table(dev, &info->vlan_table);
+ info->base_qpn = dev->caps.reserved_qps_base[MLX4_QP_REGION_ETH_ADDR] +
+ (port - 1) * (1 << log_num_mac);
+
+ sprintf(info->dev_name, "mlx4_port%d", port);
+ info->port_attr.attr.name = info->dev_name;
+ info->port_attr.attr.mode = S_IRUGO | S_IWUSR;
+ info->port_attr.show = show_port_type;
+ info->port_attr.store = set_port_type;
+ sysfs_attr_init(&info->port_attr.attr);
+
+ err = device_create_file(&dev->pdev->dev, &info->port_attr);
+ if (err) {
+ mlx4_err(dev, "Failed to create file for port %d\n", port);
+ info->port = -1;
+ }
+
+ return err;
+}
+
+static void mlx4_cleanup_port_info(struct mlx4_port_info *info)
+{
+ if (info->port < 0)
+ return;
+
+ device_remove_file(&info->dev->pdev->dev, &info->port_attr);
+}
+
+static int mlx4_init_steering(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ int num_entries = dev->caps.num_ports;
+ int i, j;
+
+ priv->steer = kzalloc(sizeof(struct mlx4_steer) * num_entries, GFP_KERNEL);
+ if (!priv->steer)
+ return -ENOMEM;
+
+ for (i = 0; i < num_entries; i++) {
+ for (j = 0; j < MLX4_NUM_STEERS; j++) {
+ INIT_LIST_HEAD(&priv->steer[i].promisc_qps[j]);
+ INIT_LIST_HEAD(&priv->steer[i].steer_entries[j]);
+ }
+ INIT_LIST_HEAD(&priv->steer[i].high_prios);
+ }
+ return 0;
+}
+
+static void mlx4_clear_steering(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ struct mlx4_steer_index *entry, *tmp_entry;
+ struct mlx4_promisc_qp *pqp, *tmp_pqp;
+ int num_entries = dev->caps.num_ports;
+ int i, j;
+
+ for (i = 0; i < num_entries; i++) {
+ for (j = 0; j < MLX4_NUM_STEERS; j++) {
+ list_for_each_entry_safe(pqp, tmp_pqp,
+ &priv->steer[i].promisc_qps[j],
+ list) {
+ list_del(&pqp->list);
+ kfree(pqp);
+ }
+ list_for_each_entry_safe(entry, tmp_entry,
+ &priv->steer[i].steer_entries[j],
+ list) {
+ list_del(&entry->list);
+ list_for_each_entry_safe(pqp, tmp_pqp,
+ &entry->duplicates,
+ list) {
+ list_del(&pqp->list);
+ kfree(pqp);
+ }
+ kfree(entry);
+ }
+ }
+ }
+ kfree(priv->steer);
+}
+
+static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ struct mlx4_priv *priv;
+ struct mlx4_dev *dev;
+ int err;
+ int port;
+
+ pr_info(DRV_NAME ": Initializing %s\n", pci_name(pdev));
+
+ err = pci_enable_device(pdev);
+ if (err) {
+ dev_err(&pdev->dev, "Cannot enable PCI device, "
+ "aborting.\n");
+ return err;
+ }
+
+ /*
+ * Check for BARs. We expect 0: 1MB
+ */
+ if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
+ pci_resource_len(pdev, 0) != 1 << 20) {
+ dev_err(&pdev->dev, "Missing DCS, aborting.\n");
+ err = -ENODEV;
+ goto err_disable_pdev;
+ }
+ if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
+ dev_err(&pdev->dev, "Missing UAR, aborting.\n");
+ err = -ENODEV;
+ goto err_disable_pdev;
+ }
+
+ err = pci_request_regions(pdev, DRV_NAME);
+ if (err) {
+ dev_err(&pdev->dev, "Couldn't get PCI resources, aborting\n");
+ goto err_disable_pdev;
+ }
+
+ pci_set_master(pdev);
+
+ err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
+ if (err) {
+ dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
+ err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+ if (err) {
+ dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
+ goto err_release_regions;
+ }
+ }
+ err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
+ if (err) {
+ dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
+ "consistent PCI DMA mask.\n");
+ err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
+ if (err) {
+ dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
+ "aborting.\n");
+ goto err_release_regions;
+ }
+ }
+
+ /* Allow large DMA segments, up to the firmware limit of 1 GB */
+ dma_set_max_seg_size(&pdev->dev, 1024 * 1024 * 1024);
+
+ priv = kzalloc(sizeof *priv, GFP_KERNEL);
+ if (!priv) {
+ dev_err(&pdev->dev, "Device struct alloc failed, "
+ "aborting.\n");
+ err = -ENOMEM;
+ goto err_release_regions;
+ }
+
+ dev = &priv->dev;
+ dev->pdev = pdev;
+ INIT_LIST_HEAD(&priv->ctx_list);
+ spin_lock_init(&priv->ctx_lock);
+
+ mutex_init(&priv->port_mutex);
+
+ INIT_LIST_HEAD(&priv->pgdir_list);
+ mutex_init(&priv->pgdir_mutex);
+
+ INIT_LIST_HEAD(&priv->bf_list);
+ mutex_init(&priv->bf_mutex);
+
+ dev->rev_id = pdev->revision;
+
+ /*
+ * Now reset the HCA before we touch the PCI capabilities or
+ * attempt a firmware command, since a boot ROM may have left
+ * the HCA in an undefined state.
+ */
+ err = mlx4_reset(dev);
+ if (err) {
+ mlx4_err(dev, "Failed to reset HCA, aborting.\n");
+ goto err_free_dev;
+ }
+
+ if (mlx4_cmd_init(dev)) {
+ mlx4_err(dev, "Failed to init command interface, aborting.\n");
+ goto err_free_dev;
+ }
+
+ err = mlx4_init_hca(dev);
+ if (err)
+ goto err_cmd;
+
+ err = mlx4_alloc_eq_table(dev);
+ if (err)
+ goto err_close;
+
+ priv->msix_ctl.pool_bm = 0;
+ spin_lock_init(&priv->msix_ctl.pool_lock);
+
+ mlx4_enable_msi_x(dev);
+
+ err = mlx4_init_steering(dev);
+ if (err)
+ goto err_free_eq;
+
+ err = mlx4_setup_hca(dev);
+ if (err == -EBUSY && (dev->flags & MLX4_FLAG_MSI_X)) {
+ dev->flags &= ~MLX4_FLAG_MSI_X;
+ pci_disable_msix(pdev);
+ err = mlx4_setup_hca(dev);
+ }
+
+ if (err)
+ goto err_steer;
+
+ for (port = 1; port <= dev->caps.num_ports; port++) {
+ err = mlx4_init_port_info(dev, port);
+ if (err)
+ goto err_port;
+ }
+
+ err = mlx4_register_device(dev);
+ if (err)
+ goto err_port;
+
+ mlx4_sense_init(dev);
+ mlx4_start_sense(dev);
+
+ pci_set_drvdata(pdev, dev);
+
+ return 0;
+
+err_port:
+ for (--port; port >= 1; --port)
+ mlx4_cleanup_port_info(&priv->port[port]);
+
+ mlx4_cleanup_counters_table(dev);
+ mlx4_cleanup_mcg_table(dev);
+ mlx4_cleanup_qp_table(dev);
+ mlx4_cleanup_srq_table(dev);
+ mlx4_cleanup_cq_table(dev);
+ mlx4_cmd_use_polling(dev);
+ mlx4_cleanup_eq_table(dev);
+ mlx4_cleanup_mr_table(dev);
+ mlx4_cleanup_pd_table(dev);
+ mlx4_cleanup_uar_table(dev);
+
+err_steer:
+ mlx4_clear_steering(dev);
+
+err_free_eq:
+ mlx4_free_eq_table(dev);
+
+err_close:
+ if (dev->flags & MLX4_FLAG_MSI_X)
+ pci_disable_msix(pdev);
+
+ mlx4_close_hca(dev);
+
+err_cmd:
+ mlx4_cmd_cleanup(dev);
+
+err_free_dev:
+ kfree(priv);
+
+err_release_regions:
+ pci_release_regions(pdev);
+
+err_disable_pdev:
+ pci_disable_device(pdev);
+ pci_set_drvdata(pdev, NULL);
+ return err;
+}
+
+static int __devinit mlx4_init_one(struct pci_dev *pdev,
+ const struct pci_device_id *id)
+{
+ printk_once(KERN_INFO "%s", mlx4_version);
+
+ return __mlx4_init_one(pdev, id);
+}
+
+static void mlx4_remove_one(struct pci_dev *pdev)
+{
+ struct mlx4_dev *dev = pci_get_drvdata(pdev);
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ int p;
+
+ if (dev) {
+ mlx4_stop_sense(dev);
+ mlx4_unregister_device(dev);
+
+ for (p = 1; p <= dev->caps.num_ports; p++) {
+ mlx4_cleanup_port_info(&priv->port[p]);
+ mlx4_CLOSE_PORT(dev, p);
+ }
+
+ mlx4_cleanup_counters_table(dev);
+ mlx4_cleanup_mcg_table(dev);
+ mlx4_cleanup_qp_table(dev);
+ mlx4_cleanup_srq_table(dev);
+ mlx4_cleanup_cq_table(dev);
+ mlx4_cmd_use_polling(dev);
+ mlx4_cleanup_eq_table(dev);
+ mlx4_cleanup_mr_table(dev);
+ mlx4_cleanup_pd_table(dev);
+
+ iounmap(priv->kar);
+ mlx4_uar_free(dev, &priv->driver_uar);
+ mlx4_cleanup_uar_table(dev);
+ mlx4_clear_steering(dev);
+ mlx4_free_eq_table(dev);
+ mlx4_close_hca(dev);
+ mlx4_cmd_cleanup(dev);
+
+ if (dev->flags & MLX4_FLAG_MSI_X)
+ pci_disable_msix(pdev);
+
+ kfree(priv);
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
+ pci_set_drvdata(pdev, NULL);
+ }
+}
+
+int mlx4_restart_one(struct pci_dev *pdev)
+{
+ mlx4_remove_one(pdev);
+ return __mlx4_init_one(pdev, NULL);
+}
+
+static DEFINE_PCI_DEVICE_TABLE(mlx4_pci_table) = {
+ { PCI_VDEVICE(MELLANOX, 0x6340) }, /* MT25408 "Hermon" SDR */
+ { PCI_VDEVICE(MELLANOX, 0x634a) }, /* MT25408 "Hermon" DDR */
+ { PCI_VDEVICE(MELLANOX, 0x6354) }, /* MT25408 "Hermon" QDR */
+ { PCI_VDEVICE(MELLANOX, 0x6732) }, /* MT25408 "Hermon" DDR PCIe gen2 */
+ { PCI_VDEVICE(MELLANOX, 0x673c) }, /* MT25408 "Hermon" QDR PCIe gen2 */
+ { PCI_VDEVICE(MELLANOX, 0x6368) }, /* MT25408 "Hermon" EN 10GigE */
+ { PCI_VDEVICE(MELLANOX, 0x6750) }, /* MT25408 "Hermon" EN 10GigE PCIe gen2 */
+ { PCI_VDEVICE(MELLANOX, 0x6372) }, /* MT25458 ConnectX EN 10GBASE-T 10GigE */
+ { PCI_VDEVICE(MELLANOX, 0x675a) }, /* MT25458 ConnectX EN 10GBASE-T+Gen2 10GigE */
+ { PCI_VDEVICE(MELLANOX, 0x6764) }, /* MT26468 ConnectX EN 10GigE PCIe gen2*/
+ { PCI_VDEVICE(MELLANOX, 0x6746) }, /* MT26438 ConnectX EN 40GigE PCIe gen2 5GT/s */
+ { PCI_VDEVICE(MELLANOX, 0x676e) }, /* MT26478 ConnectX2 40GigE PCIe gen2 */
+ { PCI_VDEVICE(MELLANOX, 0x1002) }, /* MT25400 Family [ConnectX-2 Virtual Function] */
+ { PCI_VDEVICE(MELLANOX, 0x1003) }, /* MT27500 Family [ConnectX-3] */
+ { PCI_VDEVICE(MELLANOX, 0x1004) }, /* MT27500 Family [ConnectX-3 Virtual Function] */
+ { PCI_VDEVICE(MELLANOX, 0x1005) }, /* MT27510 Family */
+ { PCI_VDEVICE(MELLANOX, 0x1006) }, /* MT27511 Family */
+ { PCI_VDEVICE(MELLANOX, 0x1007) }, /* MT27520 Family */
+ { PCI_VDEVICE(MELLANOX, 0x1008) }, /* MT27521 Family */
+ { PCI_VDEVICE(MELLANOX, 0x1009) }, /* MT27530 Family */
+ { PCI_VDEVICE(MELLANOX, 0x100a) }, /* MT27531 Family */
+ { PCI_VDEVICE(MELLANOX, 0x100b) }, /* MT27540 Family */
+ { PCI_VDEVICE(MELLANOX, 0x100c) }, /* MT27541 Family */
+ { PCI_VDEVICE(MELLANOX, 0x100d) }, /* MT27550 Family */
+ { PCI_VDEVICE(MELLANOX, 0x100e) }, /* MT27551 Family */
+ { PCI_VDEVICE(MELLANOX, 0x100f) }, /* MT27560 Family */
+ { PCI_VDEVICE(MELLANOX, 0x1010) }, /* MT27561 Family */
+ { 0, }
+};
+
+MODULE_DEVICE_TABLE(pci, mlx4_pci_table);
+
+static struct pci_driver mlx4_driver = {
+ .name = DRV_NAME,
+ .id_table = mlx4_pci_table,
+ .probe = mlx4_init_one,
+ .remove = __devexit_p(mlx4_remove_one)
+};
+
+static int __init mlx4_verify_params(void)
+{
+ if ((log_num_mac < 0) || (log_num_mac > 7)) {
+ pr_warning("mlx4_core: bad num_mac: %d\n", log_num_mac);
+ return -1;
+ }
+
+ if ((log_num_vlan < 0) || (log_num_vlan > 7)) {
+ pr_warning("mlx4_core: bad num_vlan: %d\n", log_num_vlan);
+ return -1;
+ }
+
+ if ((log_mtts_per_seg < 1) || (log_mtts_per_seg > 7)) {
+ pr_warning("mlx4_core: bad log_mtts_per_seg: %d\n", log_mtts_per_seg);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int __init mlx4_init(void)
+{
+ int ret;
+
+ if (mlx4_verify_params())
+ return -EINVAL;
+
+ mlx4_catas_init();
+
+ mlx4_wq = create_singlethread_workqueue("mlx4");
+ if (!mlx4_wq)
+ return -ENOMEM;
+
+ ret = pci_register_driver(&mlx4_driver);
+ return ret < 0 ? ret : 0;
+}
+
+static void __exit mlx4_cleanup(void)
+{
+ pci_unregister_driver(&mlx4_driver);
+ destroy_workqueue(mlx4_wq);
+}
+
+module_init(mlx4_init);
+module_exit(mlx4_cleanup);
--- /dev/null
+/*
+ * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
+ * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/string.h>
+#include <linux/etherdevice.h>
+
+#include <linux/mlx4/cmd.h>
+
+#include "mlx4.h"
+
+#define MGM_QPN_MASK 0x00FFFFFF
+#define MGM_BLCK_LB_BIT 30
+
+static const u8 zero_gid[16]; /* automatically initialized to 0 */
+
+static int mlx4_READ_ENTRY(struct mlx4_dev *dev, int index,
+ struct mlx4_cmd_mailbox *mailbox)
+{
+ return mlx4_cmd_box(dev, 0, mailbox->dma, index, 0, MLX4_CMD_READ_MCG,
+ MLX4_CMD_TIME_CLASS_A);
+}
+
+static int mlx4_WRITE_ENTRY(struct mlx4_dev *dev, int index,
+ struct mlx4_cmd_mailbox *mailbox)
+{
+ return mlx4_cmd(dev, mailbox->dma, index, 0, MLX4_CMD_WRITE_MCG,
+ MLX4_CMD_TIME_CLASS_A);
+}
+
+static int mlx4_WRITE_PROMISC(struct mlx4_dev *dev, u8 vep_num, u8 port, u8 steer,
+ struct mlx4_cmd_mailbox *mailbox)
+{
+ u32 in_mod;
+
+ in_mod = (u32) vep_num << 24 | (u32) port << 16 | steer << 1;
+ return mlx4_cmd(dev, mailbox->dma, in_mod, 0x1,
+ MLX4_CMD_WRITE_MCG, MLX4_CMD_TIME_CLASS_A);
+}
+
+static int mlx4_GID_HASH(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
+ u16 *hash, u8 op_mod)
+{
+ u64 imm;
+ int err;
+
+ err = mlx4_cmd_imm(dev, mailbox->dma, &imm, 0, op_mod,
+ MLX4_CMD_MGID_HASH, MLX4_CMD_TIME_CLASS_A);
+
+ if (!err)
+ *hash = imm;
+
+ return err;
+}
+
+static struct mlx4_promisc_qp *get_promisc_qp(struct mlx4_dev *dev, u8 pf_num,
+ enum mlx4_steer_type steer,
+ u32 qpn)
+{
+ struct mlx4_steer *s_steer = &mlx4_priv(dev)->steer[pf_num];
+ struct mlx4_promisc_qp *pqp;
+
+ list_for_each_entry(pqp, &s_steer->promisc_qps[steer], list) {
+ if (pqp->qpn == qpn)
+ return pqp;
+ }
+ /* not found */
+ return NULL;
+}
+
+/*
+ * Add new entry to steering data structure.
+ * All promisc QPs should be added as well
+ */
+static int new_steering_entry(struct mlx4_dev *dev, u8 vep_num, u8 port,
+ enum mlx4_steer_type steer,
+ unsigned int index, u32 qpn)
+{
+ struct mlx4_steer *s_steer;
+ struct mlx4_cmd_mailbox *mailbox;
+ struct mlx4_mgm *mgm;
+ u32 members_count;
+ struct mlx4_steer_index *new_entry;
+ struct mlx4_promisc_qp *pqp;
+ struct mlx4_promisc_qp *dqp = NULL;
+ u32 prot;
+ int err;
+ u8 pf_num;
+
+ pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1);
+ s_steer = &mlx4_priv(dev)->steer[pf_num];
+ new_entry = kzalloc(sizeof *new_entry, GFP_KERNEL);
+ if (!new_entry)
+ return -ENOMEM;
+
+ INIT_LIST_HEAD(&new_entry->duplicates);
+ new_entry->index = index;
+ list_add_tail(&new_entry->list, &s_steer->steer_entries[steer]);
+
+ /* If the given qpn is also a promisc qp,
+ * it should be inserted to duplicates list
+ */
+ pqp = get_promisc_qp(dev, pf_num, steer, qpn);
+ if (pqp) {
+ dqp = kmalloc(sizeof *dqp, GFP_KERNEL);
+ if (!dqp) {
+ err = -ENOMEM;
+ goto out_alloc;
+ }
+ dqp->qpn = qpn;
+ list_add_tail(&dqp->list, &new_entry->duplicates);
+ }
+
+ /* if no promisc qps for this vep, we are done */
+ if (list_empty(&s_steer->promisc_qps[steer]))
+ return 0;
+
+ /* now need to add all the promisc qps to the new
+ * steering entry, as they should also receive the packets
+ * destined to this address */
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox)) {
+ err = -ENOMEM;
+ goto out_alloc;
+ }
+ mgm = mailbox->buf;
+
+ err = mlx4_READ_ENTRY(dev, index, mailbox);
+ if (err)
+ goto out_mailbox;
+
+ members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
+ prot = be32_to_cpu(mgm->members_count) >> 30;
+ list_for_each_entry(pqp, &s_steer->promisc_qps[steer], list) {
+ /* don't add already existing qpn */
+ if (pqp->qpn == qpn)
+ continue;
+ if (members_count == MLX4_QP_PER_MGM) {
+ /* out of space */
+ err = -ENOMEM;
+ goto out_mailbox;
+ }
+
+ /* add the qpn */
+ mgm->qp[members_count++] = cpu_to_be32(pqp->qpn & MGM_QPN_MASK);
+ }
+ /* update the qps count and update the entry with all the promisc qps*/
+ mgm->members_count = cpu_to_be32(members_count | (prot << 30));
+ err = mlx4_WRITE_ENTRY(dev, index, mailbox);
+
+out_mailbox:
+ mlx4_free_cmd_mailbox(dev, mailbox);
+ if (!err)
+ return 0;
+out_alloc:
+ if (dqp) {
+ list_del(&dqp->list);
+ kfree(dqp);
+ }
+ list_del(&new_entry->list);
+ kfree(new_entry);
+ return err;
+}
+
+/* update the data structures with existing steering entry */
+static int existing_steering_entry(struct mlx4_dev *dev, u8 vep_num, u8 port,
+ enum mlx4_steer_type steer,
+ unsigned int index, u32 qpn)
+{
+ struct mlx4_steer *s_steer;
+ struct mlx4_steer_index *tmp_entry, *entry = NULL;
+ struct mlx4_promisc_qp *pqp;
+ struct mlx4_promisc_qp *dqp;
+ u8 pf_num;
+
+ pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1);
+ s_steer = &mlx4_priv(dev)->steer[pf_num];
+
+ pqp = get_promisc_qp(dev, pf_num, steer, qpn);
+ if (!pqp)
+ return 0; /* nothing to do */
+
+ list_for_each_entry(tmp_entry, &s_steer->steer_entries[steer], list) {
+ if (tmp_entry->index == index) {
+ entry = tmp_entry;
+ break;
+ }
+ }
+ if (unlikely(!entry)) {
+ mlx4_warn(dev, "Steering entry at index %x is not registered\n", index);
+ return -EINVAL;
+ }
+
+ /* the given qpn is listed as a promisc qpn
+ * we need to add it as a duplicate to this entry
+ * for future references */
+ list_for_each_entry(dqp, &entry->duplicates, list) {
+ if (qpn == dqp->qpn)
+ return 0; /* qp is already duplicated */
+ }
+
+ /* add the qp as a duplicate on this index */
+ dqp = kmalloc(sizeof *dqp, GFP_KERNEL);
+ if (!dqp)
+ return -ENOMEM;
+ dqp->qpn = qpn;
+ list_add_tail(&dqp->list, &entry->duplicates);
+
+ return 0;
+}
+
+/* Check whether a qpn is a duplicate on steering entry
+ * If so, it should not be removed from mgm */
+static bool check_duplicate_entry(struct mlx4_dev *dev, u8 vep_num, u8 port,
+ enum mlx4_steer_type steer,
+ unsigned int index, u32 qpn)
+{
+ struct mlx4_steer *s_steer;
+ struct mlx4_steer_index *tmp_entry, *entry = NULL;
+ struct mlx4_promisc_qp *dqp, *tmp_dqp;
+ u8 pf_num;
+
+ pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1);
+ s_steer = &mlx4_priv(dev)->steer[pf_num];
+
+ /* if qp is not promisc, it cannot be duplicated */
+ if (!get_promisc_qp(dev, pf_num, steer, qpn))
+ return false;
+
+ /* The qp is promisc qp so it is a duplicate on this index
+ * Find the index entry, and remove the duplicate */
+ list_for_each_entry(tmp_entry, &s_steer->steer_entries[steer], list) {
+ if (tmp_entry->index == index) {
+ entry = tmp_entry;
+ break;
+ }
+ }
+ if (unlikely(!entry)) {
+ mlx4_warn(dev, "Steering entry for index %x is not registered\n", index);
+ return false;
+ }
+ list_for_each_entry_safe(dqp, tmp_dqp, &entry->duplicates, list) {
+ if (dqp->qpn == qpn) {
+ list_del(&dqp->list);
+ kfree(dqp);
+ }
+ }
+ return true;
+}
+
+/* I a steering entry contains only promisc QPs, it can be removed. */
+static bool can_remove_steering_entry(struct mlx4_dev *dev, u8 vep_num, u8 port,
+ enum mlx4_steer_type steer,
+ unsigned int index, u32 tqpn)
+{
+ struct mlx4_steer *s_steer;
+ struct mlx4_cmd_mailbox *mailbox;
+ struct mlx4_mgm *mgm;
+ struct mlx4_steer_index *entry = NULL, *tmp_entry;
+ u32 qpn;
+ u32 members_count;
+ bool ret = false;
+ int i;
+ u8 pf_num;
+
+ pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1);
+ s_steer = &mlx4_priv(dev)->steer[pf_num];
+
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox))
+ return false;
+ mgm = mailbox->buf;
+
+ if (mlx4_READ_ENTRY(dev, index, mailbox))
+ goto out;
+ members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
+ for (i = 0; i < members_count; i++) {
+ qpn = be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK;
+ if (!get_promisc_qp(dev, pf_num, steer, qpn) && qpn != tqpn) {
+ /* the qp is not promisc, the entry can't be removed */
+ goto out;
+ }
+ }
+ /* All the qps currently registered for this entry are promiscuous,
+ * Checking for duplicates */
+ ret = true;
+ list_for_each_entry_safe(entry, tmp_entry, &s_steer->steer_entries[steer], list) {
+ if (entry->index == index) {
+ if (list_empty(&entry->duplicates)) {
+ list_del(&entry->list);
+ kfree(entry);
+ } else {
+ /* This entry contains duplicates so it shouldn't be removed */
+ ret = false;
+ goto out;
+ }
+ }
+ }
+
+out:
+ mlx4_free_cmd_mailbox(dev, mailbox);
+ return ret;
+}
+
+static int add_promisc_qp(struct mlx4_dev *dev, u8 vep_num, u8 port,
+ enum mlx4_steer_type steer, u32 qpn)
+{
+ struct mlx4_steer *s_steer;
+ struct mlx4_cmd_mailbox *mailbox;
+ struct mlx4_mgm *mgm;
+ struct mlx4_steer_index *entry;
+ struct mlx4_promisc_qp *pqp;
+ struct mlx4_promisc_qp *dqp;
+ u32 members_count;
+ u32 prot;
+ int i;
+ bool found;
+ int last_index;
+ int err;
+ u8 pf_num;
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1);
+ s_steer = &mlx4_priv(dev)->steer[pf_num];
+
+ mutex_lock(&priv->mcg_table.mutex);
+
+ if (get_promisc_qp(dev, pf_num, steer, qpn)) {
+ err = 0; /* Noting to do, already exists */
+ goto out_mutex;
+ }
+
+ pqp = kmalloc(sizeof *pqp, GFP_KERNEL);
+ if (!pqp) {
+ err = -ENOMEM;
+ goto out_mutex;
+ }
+ pqp->qpn = qpn;
+
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox)) {
+ err = -ENOMEM;
+ goto out_alloc;
+ }
+ mgm = mailbox->buf;
+
+ /* the promisc qp needs to be added for each one of the steering
+ * entries, if it already exists, needs to be added as a duplicate
+ * for this entry */
+ list_for_each_entry(entry, &s_steer->steer_entries[steer], list) {
+ err = mlx4_READ_ENTRY(dev, entry->index, mailbox);
+ if (err)
+ goto out_mailbox;
+
+ members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
+ prot = be32_to_cpu(mgm->members_count) >> 30;
+ found = false;
+ for (i = 0; i < members_count; i++) {
+ if ((be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK) == qpn) {
+ /* Entry already exists, add to duplicates */
+ dqp = kmalloc(sizeof *dqp, GFP_KERNEL);
+ if (!dqp)
+ goto out_mailbox;
+ dqp->qpn = qpn;
+ list_add_tail(&dqp->list, &entry->duplicates);
+ found = true;
+ }
+ }
+ if (!found) {
+ /* Need to add the qpn to mgm */
+ if (members_count == MLX4_QP_PER_MGM) {
+ /* entry is full */
+ err = -ENOMEM;
+ goto out_mailbox;
+ }
+ mgm->qp[members_count++] = cpu_to_be32(qpn & MGM_QPN_MASK);
+ mgm->members_count = cpu_to_be32(members_count | (prot << 30));
+ err = mlx4_WRITE_ENTRY(dev, entry->index, mailbox);
+ if (err)
+ goto out_mailbox;
+ }
+ last_index = entry->index;
+ }
+
+ /* add the new qpn to list of promisc qps */
+ list_add_tail(&pqp->list, &s_steer->promisc_qps[steer]);
+ /* now need to add all the promisc qps to default entry */
+ memset(mgm, 0, sizeof *mgm);
+ members_count = 0;
+ list_for_each_entry(dqp, &s_steer->promisc_qps[steer], list)
+ mgm->qp[members_count++] = cpu_to_be32(dqp->qpn & MGM_QPN_MASK);
+ mgm->members_count = cpu_to_be32(members_count | MLX4_PROT_ETH << 30);
+
+ err = mlx4_WRITE_PROMISC(dev, vep_num, port, steer, mailbox);
+ if (err)
+ goto out_list;
+
+ mlx4_free_cmd_mailbox(dev, mailbox);
+ mutex_unlock(&priv->mcg_table.mutex);
+ return 0;
+
+out_list:
+ list_del(&pqp->list);
+out_mailbox:
+ mlx4_free_cmd_mailbox(dev, mailbox);
+out_alloc:
+ kfree(pqp);
+out_mutex:
+ mutex_unlock(&priv->mcg_table.mutex);
+ return err;
+}
+
+static int remove_promisc_qp(struct mlx4_dev *dev, u8 vep_num, u8 port,
+ enum mlx4_steer_type steer, u32 qpn)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ struct mlx4_steer *s_steer;
+ struct mlx4_cmd_mailbox *mailbox;
+ struct mlx4_mgm *mgm;
+ struct mlx4_steer_index *entry;
+ struct mlx4_promisc_qp *pqp;
+ struct mlx4_promisc_qp *dqp;
+ u32 members_count;
+ bool found;
+ bool back_to_list = false;
+ int loc, i;
+ int err;
+ u8 pf_num;
+
+ pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1);
+ s_steer = &mlx4_priv(dev)->steer[pf_num];
+ mutex_lock(&priv->mcg_table.mutex);
+
+ pqp = get_promisc_qp(dev, pf_num, steer, qpn);
+ if (unlikely(!pqp)) {
+ mlx4_warn(dev, "QP %x is not promiscuous QP\n", qpn);
+ /* nothing to do */
+ err = 0;
+ goto out_mutex;
+ }
+
+ /*remove from list of promisc qps */
+ list_del(&pqp->list);
+
+ /* set the default entry not to include the removed one */
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox)) {
+ err = -ENOMEM;
+ back_to_list = true;
+ goto out_list;
+ }
+ mgm = mailbox->buf;
+ members_count = 0;
+ list_for_each_entry(dqp, &s_steer->promisc_qps[steer], list)
+ mgm->qp[members_count++] = cpu_to_be32(dqp->qpn & MGM_QPN_MASK);
+ mgm->members_count = cpu_to_be32(members_count | MLX4_PROT_ETH << 30);
+
+ err = mlx4_WRITE_PROMISC(dev, vep_num, port, steer, mailbox);
+ if (err)
+ goto out_mailbox;
+
+ /* remove the qp from all the steering entries*/
+ list_for_each_entry(entry, &s_steer->steer_entries[steer], list) {
+ found = false;
+ list_for_each_entry(dqp, &entry->duplicates, list) {
+ if (dqp->qpn == qpn) {
+ found = true;
+ break;
+ }
+ }
+ if (found) {
+ /* a duplicate, no need to change the mgm,
+ * only update the duplicates list */
+ list_del(&dqp->list);
+ kfree(dqp);
+ } else {
+ err = mlx4_READ_ENTRY(dev, entry->index, mailbox);
+ if (err)
+ goto out_mailbox;
+ members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
+ for (loc = -1, i = 0; i < members_count; ++i)
+ if ((be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK) == qpn)
+ loc = i;
+
+ mgm->members_count = cpu_to_be32(--members_count |
+ (MLX4_PROT_ETH << 30));
+ mgm->qp[loc] = mgm->qp[i - 1];
+ mgm->qp[i - 1] = 0;
+
+ err = mlx4_WRITE_ENTRY(dev, entry->index, mailbox);
+ if (err)
+ goto out_mailbox;
+ }
+
+ }
+
+out_mailbox:
+ mlx4_free_cmd_mailbox(dev, mailbox);
+out_list:
+ if (back_to_list)
+ list_add_tail(&pqp->list, &s_steer->promisc_qps[steer]);
+ else
+ kfree(pqp);
+out_mutex:
+ mutex_unlock(&priv->mcg_table.mutex);
+ return err;
+}
+
+/*
+ * Caller must hold MCG table semaphore. gid and mgm parameters must
+ * be properly aligned for command interface.
+ *
+ * Returns 0 unless a firmware command error occurs.
+ *
+ * If GID is found in MGM or MGM is empty, *index = *hash, *prev = -1
+ * and *mgm holds MGM entry.
+ *
+ * if GID is found in AMGM, *index = index in AMGM, *prev = index of
+ * previous entry in hash chain and *mgm holds AMGM entry.
+ *
+ * If no AMGM exists for given gid, *index = -1, *prev = index of last
+ * entry in hash chain and *mgm holds end of hash chain.
+ */
+static int find_entry(struct mlx4_dev *dev, u8 port,
+ u8 *gid, enum mlx4_protocol prot,
+ enum mlx4_steer_type steer,
+ struct mlx4_cmd_mailbox *mgm_mailbox,
+ u16 *hash, int *prev, int *index)
+{
+ struct mlx4_cmd_mailbox *mailbox;
+ struct mlx4_mgm *mgm = mgm_mailbox->buf;
+ u8 *mgid;
+ int err;
+ u8 op_mod = (prot == MLX4_PROT_ETH) ?
+ !!(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER) : 0;
+
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox))
+ return -ENOMEM;
+ mgid = mailbox->buf;
+
+ memcpy(mgid, gid, 16);
+
+ err = mlx4_GID_HASH(dev, mailbox, hash, op_mod);
+ mlx4_free_cmd_mailbox(dev, mailbox);
+ if (err)
+ return err;
+
+ if (0)
+ mlx4_dbg(dev, "Hash for %pI6 is %04x\n", gid, *hash);
+
+ *index = *hash;
+ *prev = -1;
+
+ do {
+ err = mlx4_READ_ENTRY(dev, *index, mgm_mailbox);
+ if (err)
+ return err;
+
+ if (!(be32_to_cpu(mgm->members_count) & 0xffffff)) {
+ if (*index != *hash) {
+ mlx4_err(dev, "Found zero MGID in AMGM.\n");
+ err = -EINVAL;
+ }
+ return err;
+ }
+
+ if (!memcmp(mgm->gid, gid, 16) &&
+ be32_to_cpu(mgm->members_count) >> 30 == prot)
+ return err;
+
+ *prev = *index;
+ *index = be32_to_cpu(mgm->next_gid_index) >> 6;
+ } while (*index);
+
+ *index = -1;
+ return err;
+}
+
+int mlx4_qp_attach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
+ int block_mcast_loopback, enum mlx4_protocol prot,
+ enum mlx4_steer_type steer)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ struct mlx4_cmd_mailbox *mailbox;
+ struct mlx4_mgm *mgm;
+ u32 members_count;
+ u16 hash;
+ int index, prev;
+ int link = 0;
+ int i;
+ int err;
+ u8 port = gid[5];
+ u8 new_entry = 0;
+
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox))
+ return PTR_ERR(mailbox);
+ mgm = mailbox->buf;
+
+ mutex_lock(&priv->mcg_table.mutex);
+ err = find_entry(dev, port, gid, prot, steer,
+ mailbox, &hash, &prev, &index);
+ if (err)
+ goto out;
+
+ if (index != -1) {
+ if (!(be32_to_cpu(mgm->members_count) & 0xffffff)) {
+ new_entry = 1;
+ memcpy(mgm->gid, gid, 16);
+ }
+ } else {
+ link = 1;
+
+ index = mlx4_bitmap_alloc(&priv->mcg_table.bitmap);
+ if (index == -1) {
+ mlx4_err(dev, "No AMGM entries left\n");
+ err = -ENOMEM;
+ goto out;
+ }
+ index += dev->caps.num_mgms;
+
+ memset(mgm, 0, sizeof *mgm);
+ memcpy(mgm->gid, gid, 16);
+ }
+
+ members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
+ if (members_count == MLX4_QP_PER_MGM) {
+ mlx4_err(dev, "MGM at index %x is full.\n", index);
+ err = -ENOMEM;
+ goto out;
+ }
+
+ for (i = 0; i < members_count; ++i)
+ if ((be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK) == qp->qpn) {
+ mlx4_dbg(dev, "QP %06x already a member of MGM\n", qp->qpn);
+ err = 0;
+ goto out;
+ }
+
+ if (block_mcast_loopback)
+ mgm->qp[members_count++] = cpu_to_be32((qp->qpn & MGM_QPN_MASK) |
+ (1U << MGM_BLCK_LB_BIT));
+ else
+ mgm->qp[members_count++] = cpu_to_be32(qp->qpn & MGM_QPN_MASK);
+
+ mgm->members_count = cpu_to_be32(members_count | (u32) prot << 30);
+
+ err = mlx4_WRITE_ENTRY(dev, index, mailbox);
+ if (err)
+ goto out;
+
+ if (!link)
+ goto out;
+
+ err = mlx4_READ_ENTRY(dev, prev, mailbox);
+ if (err)
+ goto out;
+
+ mgm->next_gid_index = cpu_to_be32(index << 6);
+
+ err = mlx4_WRITE_ENTRY(dev, prev, mailbox);
+ if (err)
+ goto out;
+
+out:
+ if (prot == MLX4_PROT_ETH) {
+ /* manage the steering entry for promisc mode */
+ if (new_entry)
+ new_steering_entry(dev, 0, port, steer, index, qp->qpn);
+ else
+ existing_steering_entry(dev, 0, port, steer,
+ index, qp->qpn);
+ }
+ if (err && link && index != -1) {
+ if (index < dev->caps.num_mgms)
+ mlx4_warn(dev, "Got AMGM index %d < %d",
+ index, dev->caps.num_mgms);
+ else
+ mlx4_bitmap_free(&priv->mcg_table.bitmap,
+ index - dev->caps.num_mgms);
+ }
+ mutex_unlock(&priv->mcg_table.mutex);
+
+ mlx4_free_cmd_mailbox(dev, mailbox);
+ return err;
+}
+
+int mlx4_qp_detach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
+ enum mlx4_protocol prot, enum mlx4_steer_type steer)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ struct mlx4_cmd_mailbox *mailbox;
+ struct mlx4_mgm *mgm;
+ u32 members_count;
+ u16 hash;
+ int prev, index;
+ int i, loc;
+ int err;
+ u8 port = gid[5];
+ bool removed_entry = false;
+
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox))
+ return PTR_ERR(mailbox);
+ mgm = mailbox->buf;
+
+ mutex_lock(&priv->mcg_table.mutex);
+
+ err = find_entry(dev, port, gid, prot, steer,
+ mailbox, &hash, &prev, &index);
+ if (err)
+ goto out;
+
+ if (index == -1) {
+ mlx4_err(dev, "MGID %pI6 not found\n", gid);
+ err = -EINVAL;
+ goto out;
+ }
+
+ /* if this pq is also a promisc qp, it shouldn't be removed */
+ if (prot == MLX4_PROT_ETH &&
+ check_duplicate_entry(dev, 0, port, steer, index, qp->qpn))
+ goto out;
+
+ members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
+ for (loc = -1, i = 0; i < members_count; ++i)
+ if ((be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK) == qp->qpn)
+ loc = i;
+
+ if (loc == -1) {
+ mlx4_err(dev, "QP %06x not found in MGM\n", qp->qpn);
+ err = -EINVAL;
+ goto out;
+ }
+
+
+ mgm->members_count = cpu_to_be32(--members_count | (u32) prot << 30);
+ mgm->qp[loc] = mgm->qp[i - 1];
+ mgm->qp[i - 1] = 0;
+
+ if (prot == MLX4_PROT_ETH)
+ removed_entry = can_remove_steering_entry(dev, 0, port, steer, index, qp->qpn);
+ if (i != 1 && (prot != MLX4_PROT_ETH || !removed_entry)) {
+ err = mlx4_WRITE_ENTRY(dev, index, mailbox);
+ goto out;
+ }
+
+ /* We are going to delete the entry, members count should be 0 */
+ mgm->members_count = cpu_to_be32((u32) prot << 30);
+
+ if (prev == -1) {
+ /* Remove entry from MGM */
+ int amgm_index = be32_to_cpu(mgm->next_gid_index) >> 6;
+ if (amgm_index) {
+ err = mlx4_READ_ENTRY(dev, amgm_index, mailbox);
+ if (err)
+ goto out;
+ } else
+ memset(mgm->gid, 0, 16);
+
+ err = mlx4_WRITE_ENTRY(dev, index, mailbox);
+ if (err)
+ goto out;
+
+ if (amgm_index) {
+ if (amgm_index < dev->caps.num_mgms)
+ mlx4_warn(dev, "MGM entry %d had AMGM index %d < %d",
+ index, amgm_index, dev->caps.num_mgms);
+ else
+ mlx4_bitmap_free(&priv->mcg_table.bitmap,
+ amgm_index - dev->caps.num_mgms);
+ }
+ } else {
+ /* Remove entry from AMGM */
+ int cur_next_index = be32_to_cpu(mgm->next_gid_index) >> 6;
+ err = mlx4_READ_ENTRY(dev, prev, mailbox);
+ if (err)
+ goto out;
+
+ mgm->next_gid_index = cpu_to_be32(cur_next_index << 6);
+
+ err = mlx4_WRITE_ENTRY(dev, prev, mailbox);
+ if (err)
+ goto out;
+
+ if (index < dev->caps.num_mgms)
+ mlx4_warn(dev, "entry %d had next AMGM index %d < %d",
+ prev, index, dev->caps.num_mgms);
+ else
+ mlx4_bitmap_free(&priv->mcg_table.bitmap,
+ index - dev->caps.num_mgms);
+ }
+
+out:
+ mutex_unlock(&priv->mcg_table.mutex);
+
+ mlx4_free_cmd_mailbox(dev, mailbox);
+ return err;
+}
+
+
+int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
+ int block_mcast_loopback, enum mlx4_protocol prot)
+{
+ enum mlx4_steer_type steer;
+
+ steer = (is_valid_ether_addr(&gid[10])) ? MLX4_UC_STEER : MLX4_MC_STEER;
+
+ if (prot == MLX4_PROT_ETH &&
+ !(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER))
+ return 0;
+
+ if (prot == MLX4_PROT_ETH)
+ gid[7] |= (steer << 1);
+
+ return mlx4_qp_attach_common(dev, qp, gid,
+ block_mcast_loopback, prot,
+ steer);
+}
+EXPORT_SYMBOL_GPL(mlx4_multicast_attach);
+
+int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
+ enum mlx4_protocol prot)
+{
+ enum mlx4_steer_type steer;
+
+ steer = (is_valid_ether_addr(&gid[10])) ? MLX4_UC_STEER : MLX4_MC_STEER;
+
+ if (prot == MLX4_PROT_ETH &&
+ !(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER))
+ return 0;
+
+ if (prot == MLX4_PROT_ETH) {
+ gid[7] |= (steer << 1);
+ }
+
+ return mlx4_qp_detach_common(dev, qp, gid, prot, steer);
+}
+EXPORT_SYMBOL_GPL(mlx4_multicast_detach);
+
+
+int mlx4_multicast_promisc_add(struct mlx4_dev *dev, u32 qpn, u8 port)
+{
+ if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER))
+ return 0;
+
+
+ return add_promisc_qp(dev, 0, port, MLX4_MC_STEER, qpn);
+}
+EXPORT_SYMBOL_GPL(mlx4_multicast_promisc_add);
+
+int mlx4_multicast_promisc_remove(struct mlx4_dev *dev, u32 qpn, u8 port)
+{
+ if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER))
+ return 0;
+
+
+ return remove_promisc_qp(dev, 0, port, MLX4_MC_STEER, qpn);
+}
+EXPORT_SYMBOL_GPL(mlx4_multicast_promisc_remove);
+
+int mlx4_unicast_promisc_add(struct mlx4_dev *dev, u32 qpn, u8 port)
+{
+ if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER))
+ return 0;
+
+
+ return add_promisc_qp(dev, 0, port, MLX4_UC_STEER, qpn);
+}
+EXPORT_SYMBOL_GPL(mlx4_unicast_promisc_add);
+
+int mlx4_unicast_promisc_remove(struct mlx4_dev *dev, u32 qpn, u8 port)
+{
+ if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER))
+ return 0;
+
+ return remove_promisc_qp(dev, 0, port, MLX4_UC_STEER, qpn);
+}
+EXPORT_SYMBOL_GPL(mlx4_unicast_promisc_remove);
+
+int mlx4_init_mcg_table(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ int err;
+
+ err = mlx4_bitmap_init(&priv->mcg_table.bitmap, dev->caps.num_amgms,
+ dev->caps.num_amgms - 1, 0, 0);
+ if (err)
+ return err;
+
+ mutex_init(&priv->mcg_table.mutex);
+
+ return 0;
+}
+
+void mlx4_cleanup_mcg_table(struct mlx4_dev *dev)
+{
+ mlx4_bitmap_cleanup(&mlx4_priv(dev)->mcg_table.bitmap);
+}
--- /dev/null
+/*
+ * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
+ * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
+ * Copyright (c) 2005, 2006, 2007 Cisco Systems. All rights reserved.
+ * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2004 Voltaire, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef MLX4_H
+#define MLX4_H
+
+#include <linux/mutex.h>
+#include <linux/radix-tree.h>
+#include <linux/timer.h>
+#include <linux/semaphore.h>
+#include <linux/workqueue.h>
+
+#include <linux/mlx4/device.h>
+#include <linux/mlx4/driver.h>
+#include <linux/mlx4/doorbell.h>
+
+#define DRV_NAME "mlx4_core"
+#define DRV_VERSION "1.0"
+#define DRV_RELDATE "July 14, 2011"
+
+enum {
+ MLX4_HCR_BASE = 0x80680,
+ MLX4_HCR_SIZE = 0x0001c,
+ MLX4_CLR_INT_SIZE = 0x00008
+};
+
+enum {
+ MLX4_MGM_ENTRY_SIZE = 0x100,
+ MLX4_QP_PER_MGM = 4 * (MLX4_MGM_ENTRY_SIZE / 16 - 2),
+ MLX4_MTT_ENTRY_PER_SEG = 8
+};
+
+enum {
+ MLX4_NUM_PDS = 1 << 15
+};
+
+enum {
+ MLX4_CMPT_TYPE_QP = 0,
+ MLX4_CMPT_TYPE_SRQ = 1,
+ MLX4_CMPT_TYPE_CQ = 2,
+ MLX4_CMPT_TYPE_EQ = 3,
+ MLX4_CMPT_NUM_TYPE
+};
+
+enum {
+ MLX4_CMPT_SHIFT = 24,
+ MLX4_NUM_CMPTS = MLX4_CMPT_NUM_TYPE << MLX4_CMPT_SHIFT
+};
+
+#ifdef CONFIG_MLX4_DEBUG
+extern int mlx4_debug_level;
+#else /* CONFIG_MLX4_DEBUG */
+#define mlx4_debug_level (0)
+#endif /* CONFIG_MLX4_DEBUG */
+
+#define mlx4_dbg(mdev, format, arg...) \
+do { \
+ if (mlx4_debug_level) \
+ dev_printk(KERN_DEBUG, &mdev->pdev->dev, format, ##arg); \
+} while (0)
+
+#define mlx4_err(mdev, format, arg...) \
+ dev_err(&mdev->pdev->dev, format, ##arg)
+#define mlx4_info(mdev, format, arg...) \
+ dev_info(&mdev->pdev->dev, format, ##arg)
+#define mlx4_warn(mdev, format, arg...) \
+ dev_warn(&mdev->pdev->dev, format, ##arg)
+
+struct mlx4_bitmap {
+ u32 last;
+ u32 top;
+ u32 max;
+ u32 reserved_top;
+ u32 mask;
+ u32 avail;
+ spinlock_t lock;
+ unsigned long *table;
+};
+
+struct mlx4_buddy {
+ unsigned long **bits;
+ unsigned int *num_free;
+ int max_order;
+ spinlock_t lock;
+};
+
+struct mlx4_icm;
+
+struct mlx4_icm_table {
+ u64 virt;
+ int num_icm;
+ int num_obj;
+ int obj_size;
+ int lowmem;
+ int coherent;
+ struct mutex mutex;
+ struct mlx4_icm **icm;
+};
+
+struct mlx4_eq {
+ struct mlx4_dev *dev;
+ void __iomem *doorbell;
+ int eqn;
+ u32 cons_index;
+ u16 irq;
+ u16 have_irq;
+ int nent;
+ struct mlx4_buf_list *page_list;
+ struct mlx4_mtt mtt;
+};
+
+struct mlx4_profile {
+ int num_qp;
+ int rdmarc_per_qp;
+ int num_srq;
+ int num_cq;
+ int num_mcg;
+ int num_mpt;
+ int num_mtt;
+};
+
+struct mlx4_fw {
+ u64 clr_int_base;
+ u64 catas_offset;
+ struct mlx4_icm *fw_icm;
+ struct mlx4_icm *aux_icm;
+ u32 catas_size;
+ u16 fw_pages;
+ u8 clr_int_bar;
+ u8 catas_bar;
+};
+
+#define MGM_QPN_MASK 0x00FFFFFF
+#define MGM_BLCK_LB_BIT 30
+
+struct mlx4_promisc_qp {
+ struct list_head list;
+ u32 qpn;
+};
+
+struct mlx4_steer_index {
+ struct list_head list;
+ unsigned int index;
+ struct list_head duplicates;
+};
+
+struct mlx4_mgm {
+ __be32 next_gid_index;
+ __be32 members_count;
+ u32 reserved[2];
+ u8 gid[16];
+ __be32 qp[MLX4_QP_PER_MGM];
+};
+struct mlx4_cmd {
+ struct pci_pool *pool;
+ void __iomem *hcr;
+ struct mutex hcr_mutex;
+ struct semaphore poll_sem;
+ struct semaphore event_sem;
+ int max_cmds;
+ spinlock_t context_lock;
+ int free_head;
+ struct mlx4_cmd_context *context;
+ u16 token_mask;
+ u8 use_events;
+ u8 toggle;
+};
+
+struct mlx4_uar_table {
+ struct mlx4_bitmap bitmap;
+};
+
+struct mlx4_mr_table {
+ struct mlx4_bitmap mpt_bitmap;
+ struct mlx4_buddy mtt_buddy;
+ u64 mtt_base;
+ u64 mpt_base;
+ struct mlx4_icm_table mtt_table;
+ struct mlx4_icm_table dmpt_table;
+};
+
+struct mlx4_cq_table {
+ struct mlx4_bitmap bitmap;
+ spinlock_t lock;
+ struct radix_tree_root tree;
+ struct mlx4_icm_table table;
+ struct mlx4_icm_table cmpt_table;
+};
+
+struct mlx4_eq_table {
+ struct mlx4_bitmap bitmap;
+ char *irq_names;
+ void __iomem *clr_int;
+ void __iomem **uar_map;
+ u32 clr_mask;
+ struct mlx4_eq *eq;
+ struct mlx4_icm_table table;
+ struct mlx4_icm_table cmpt_table;
+ int have_irq;
+ u8 inta_pin;
+};
+
+struct mlx4_srq_table {
+ struct mlx4_bitmap bitmap;
+ spinlock_t lock;
+ struct radix_tree_root tree;
+ struct mlx4_icm_table table;
+ struct mlx4_icm_table cmpt_table;
+};
+
+struct mlx4_qp_table {
+ struct mlx4_bitmap bitmap;
+ u32 rdmarc_base;
+ int rdmarc_shift;
+ spinlock_t lock;
+ struct mlx4_icm_table qp_table;
+ struct mlx4_icm_table auxc_table;
+ struct mlx4_icm_table altc_table;
+ struct mlx4_icm_table rdmarc_table;
+ struct mlx4_icm_table cmpt_table;
+};
+
+struct mlx4_mcg_table {
+ struct mutex mutex;
+ struct mlx4_bitmap bitmap;
+ struct mlx4_icm_table table;
+};
+
+struct mlx4_catas_err {
+ u32 __iomem *map;
+ struct timer_list timer;
+ struct list_head list;
+};
+
+#define MLX4_MAX_MAC_NUM 128
+#define MLX4_MAC_TABLE_SIZE (MLX4_MAX_MAC_NUM << 3)
+
+struct mlx4_mac_table {
+ __be64 entries[MLX4_MAX_MAC_NUM];
+ int refs[MLX4_MAX_MAC_NUM];
+ struct mutex mutex;
+ int total;
+ int max;
+};
+
+#define MLX4_MAX_VLAN_NUM 128
+#define MLX4_VLAN_TABLE_SIZE (MLX4_MAX_VLAN_NUM << 2)
+
+struct mlx4_vlan_table {
+ __be32 entries[MLX4_MAX_VLAN_NUM];
+ int refs[MLX4_MAX_VLAN_NUM];
+ struct mutex mutex;
+ int total;
+ int max;
+};
+
+struct mlx4_mac_entry {
+ u64 mac;
+};
+
+struct mlx4_port_info {
+ struct mlx4_dev *dev;
+ int port;
+ char dev_name[16];
+ struct device_attribute port_attr;
+ enum mlx4_port_type tmp_type;
+ struct mlx4_mac_table mac_table;
+ struct radix_tree_root mac_tree;
+ struct mlx4_vlan_table vlan_table;
+ int base_qpn;
+};
+
+struct mlx4_sense {
+ struct mlx4_dev *dev;
+ u8 do_sense_port[MLX4_MAX_PORTS + 1];
+ u8 sense_allowed[MLX4_MAX_PORTS + 1];
+ struct delayed_work sense_poll;
+};
+
+struct mlx4_msix_ctl {
+ u64 pool_bm;
+ spinlock_t pool_lock;
+};
+
+struct mlx4_steer {
+ struct list_head promisc_qps[MLX4_NUM_STEERS];
+ struct list_head steer_entries[MLX4_NUM_STEERS];
+ struct list_head high_prios;
+};
+
+struct mlx4_priv {
+ struct mlx4_dev dev;
+
+ struct list_head dev_list;
+ struct list_head ctx_list;
+ spinlock_t ctx_lock;
+
+ struct list_head pgdir_list;
+ struct mutex pgdir_mutex;
+
+ struct mlx4_fw fw;
+ struct mlx4_cmd cmd;
+
+ struct mlx4_bitmap pd_bitmap;
+ struct mlx4_uar_table uar_table;
+ struct mlx4_mr_table mr_table;
+ struct mlx4_cq_table cq_table;
+ struct mlx4_eq_table eq_table;
+ struct mlx4_srq_table srq_table;
+ struct mlx4_qp_table qp_table;
+ struct mlx4_mcg_table mcg_table;
+ struct mlx4_bitmap counters_bitmap;
+
+ struct mlx4_catas_err catas_err;
+
+ void __iomem *clr_base;
+
+ struct mlx4_uar driver_uar;
+ void __iomem *kar;
+ struct mlx4_port_info port[MLX4_MAX_PORTS + 1];
+ struct mlx4_sense sense;
+ struct mutex port_mutex;
+ struct mlx4_msix_ctl msix_ctl;
+ struct mlx4_steer *steer;
+ struct list_head bf_list;
+ struct mutex bf_mutex;
+ struct io_mapping *bf_mapping;
+};
+
+static inline struct mlx4_priv *mlx4_priv(struct mlx4_dev *dev)
+{
+ return container_of(dev, struct mlx4_priv, dev);
+}
+
+#define MLX4_SENSE_RANGE (HZ * 3)
+
+extern struct workqueue_struct *mlx4_wq;
+
+u32 mlx4_bitmap_alloc(struct mlx4_bitmap *bitmap);
+void mlx4_bitmap_free(struct mlx4_bitmap *bitmap, u32 obj);
+u32 mlx4_bitmap_alloc_range(struct mlx4_bitmap *bitmap, int cnt, int align);
+void mlx4_bitmap_free_range(struct mlx4_bitmap *bitmap, u32 obj, int cnt);
+u32 mlx4_bitmap_avail(struct mlx4_bitmap *bitmap);
+int mlx4_bitmap_init(struct mlx4_bitmap *bitmap, u32 num, u32 mask,
+ u32 reserved_bot, u32 resetrved_top);
+void mlx4_bitmap_cleanup(struct mlx4_bitmap *bitmap);
+
+int mlx4_reset(struct mlx4_dev *dev);
+
+int mlx4_alloc_eq_table(struct mlx4_dev *dev);
+void mlx4_free_eq_table(struct mlx4_dev *dev);
+
+int mlx4_init_pd_table(struct mlx4_dev *dev);
+int mlx4_init_uar_table(struct mlx4_dev *dev);
+int mlx4_init_mr_table(struct mlx4_dev *dev);
+int mlx4_init_eq_table(struct mlx4_dev *dev);
+int mlx4_init_cq_table(struct mlx4_dev *dev);
+int mlx4_init_qp_table(struct mlx4_dev *dev);
+int mlx4_init_srq_table(struct mlx4_dev *dev);
+int mlx4_init_mcg_table(struct mlx4_dev *dev);
+
+void mlx4_cleanup_pd_table(struct mlx4_dev *dev);
+void mlx4_cleanup_uar_table(struct mlx4_dev *dev);
+void mlx4_cleanup_mr_table(struct mlx4_dev *dev);
+void mlx4_cleanup_eq_table(struct mlx4_dev *dev);
+void mlx4_cleanup_cq_table(struct mlx4_dev *dev);
+void mlx4_cleanup_qp_table(struct mlx4_dev *dev);
+void mlx4_cleanup_srq_table(struct mlx4_dev *dev);
+void mlx4_cleanup_mcg_table(struct mlx4_dev *dev);
+
+void mlx4_start_catas_poll(struct mlx4_dev *dev);
+void mlx4_stop_catas_poll(struct mlx4_dev *dev);
+void mlx4_catas_init(void);
+int mlx4_restart_one(struct pci_dev *pdev);
+int mlx4_register_device(struct mlx4_dev *dev);
+void mlx4_unregister_device(struct mlx4_dev *dev);
+void mlx4_dispatch_event(struct mlx4_dev *dev, enum mlx4_dev_event type, int port);
+
+struct mlx4_dev_cap;
+struct mlx4_init_hca_param;
+
+u64 mlx4_make_profile(struct mlx4_dev *dev,
+ struct mlx4_profile *request,
+ struct mlx4_dev_cap *dev_cap,
+ struct mlx4_init_hca_param *init_hca);
+
+int mlx4_cmd_init(struct mlx4_dev *dev);
+void mlx4_cmd_cleanup(struct mlx4_dev *dev);
+void mlx4_cmd_event(struct mlx4_dev *dev, u16 token, u8 status, u64 out_param);
+int mlx4_cmd_use_events(struct mlx4_dev *dev);
+void mlx4_cmd_use_polling(struct mlx4_dev *dev);
+
+void mlx4_cq_completion(struct mlx4_dev *dev, u32 cqn);
+void mlx4_cq_event(struct mlx4_dev *dev, u32 cqn, int event_type);
+
+void mlx4_qp_event(struct mlx4_dev *dev, u32 qpn, int event_type);
+
+void mlx4_srq_event(struct mlx4_dev *dev, u32 srqn, int event_type);
+
+void mlx4_handle_catas_err(struct mlx4_dev *dev);
+
+int mlx4_SENSE_PORT(struct mlx4_dev *dev, int port,
+ enum mlx4_port_type *type);
+void mlx4_do_sense_ports(struct mlx4_dev *dev,
+ enum mlx4_port_type *stype,
+ enum mlx4_port_type *defaults);
+void mlx4_start_sense(struct mlx4_dev *dev);
+void mlx4_stop_sense(struct mlx4_dev *dev);
+void mlx4_sense_init(struct mlx4_dev *dev);
+int mlx4_check_port_params(struct mlx4_dev *dev,
+ enum mlx4_port_type *port_type);
+int mlx4_change_port_types(struct mlx4_dev *dev,
+ enum mlx4_port_type *port_types);
+
+void mlx4_init_mac_table(struct mlx4_dev *dev, struct mlx4_mac_table *table);
+void mlx4_init_vlan_table(struct mlx4_dev *dev, struct mlx4_vlan_table *table);
+
+int mlx4_SET_PORT(struct mlx4_dev *dev, u8 port);
+int mlx4_get_port_ib_caps(struct mlx4_dev *dev, u8 port, __be32 *caps);
+
+int mlx4_qp_detach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
+ enum mlx4_protocol prot, enum mlx4_steer_type steer);
+int mlx4_qp_attach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
+ int block_mcast_loopback, enum mlx4_protocol prot,
+ enum mlx4_steer_type steer);
+#endif /* MLX4_H */
--- /dev/null
+/*
+ * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#ifndef _MLX4_EN_H_
+#define _MLX4_EN_H_
+
+#include <linux/bitops.h>
+#include <linux/compiler.h>
+#include <linux/list.h>
+#include <linux/mutex.h>
+#include <linux/netdevice.h>
+#include <linux/if_vlan.h>
+
+#include <linux/mlx4/device.h>
+#include <linux/mlx4/qp.h>
+#include <linux/mlx4/cq.h>
+#include <linux/mlx4/srq.h>
+#include <linux/mlx4/doorbell.h>
+#include <linux/mlx4/cmd.h>
+
+#include "en_port.h"
+
+#define DRV_NAME "mlx4_en"
+#define DRV_VERSION "1.5.4.1"
+#define DRV_RELDATE "March 2011"
+
+#define MLX4_EN_MSG_LEVEL (NETIF_MSG_LINK | NETIF_MSG_IFDOWN)
+
+/*
+ * Device constants
+ */
+
+
+#define MLX4_EN_PAGE_SHIFT 12
+#define MLX4_EN_PAGE_SIZE (1 << MLX4_EN_PAGE_SHIFT)
+#define MAX_RX_RINGS 16
+#define MIN_RX_RINGS 4
+#define TXBB_SIZE 64
+#define HEADROOM (2048 / TXBB_SIZE + 1)
+#define STAMP_STRIDE 64
+#define STAMP_DWORDS (STAMP_STRIDE / 4)
+#define STAMP_SHIFT 31
+#define STAMP_VAL 0x7fffffff
+#define STATS_DELAY (HZ / 4)
+
+/* Typical TSO descriptor with 16 gather entries is 352 bytes... */
+#define MAX_DESC_SIZE 512
+#define MAX_DESC_TXBBS (MAX_DESC_SIZE / TXBB_SIZE)
+
+/*
+ * OS related constants and tunables
+ */
+
+#define MLX4_EN_WATCHDOG_TIMEOUT (15 * HZ)
+
+#define MLX4_EN_ALLOC_ORDER 2
+#define MLX4_EN_ALLOC_SIZE (PAGE_SIZE << MLX4_EN_ALLOC_ORDER)
+
+#define MLX4_EN_MAX_LRO_DESCRIPTORS 32
+
+/* Receive fragment sizes; we use at most 4 fragments (for 9600 byte MTU
+ * and 4K allocations) */
+enum {
+ FRAG_SZ0 = 512 - NET_IP_ALIGN,
+ FRAG_SZ1 = 1024,
+ FRAG_SZ2 = 4096,
+ FRAG_SZ3 = MLX4_EN_ALLOC_SIZE
+};
+#define MLX4_EN_MAX_RX_FRAGS 4
+
+/* Maximum ring sizes */
+#define MLX4_EN_MAX_TX_SIZE 8192
+#define MLX4_EN_MAX_RX_SIZE 8192
+
+/* Minimum ring size for our page-allocation sceme to work */
+#define MLX4_EN_MIN_RX_SIZE (MLX4_EN_ALLOC_SIZE / SMP_CACHE_BYTES)
+#define MLX4_EN_MIN_TX_SIZE (4096 / TXBB_SIZE)
+
+#define MLX4_EN_SMALL_PKT_SIZE 64
+#define MLX4_EN_NUM_TX_RINGS 8
+#define MLX4_EN_NUM_PPP_RINGS 8
+#define MAX_TX_RINGS (MLX4_EN_NUM_TX_RINGS + MLX4_EN_NUM_PPP_RINGS)
+#define MLX4_EN_DEF_TX_RING_SIZE 512
+#define MLX4_EN_DEF_RX_RING_SIZE 1024
+
+/* Target number of packets to coalesce with interrupt moderation */
+#define MLX4_EN_RX_COAL_TARGET 44
+#define MLX4_EN_RX_COAL_TIME 0x10
+
+#define MLX4_EN_TX_COAL_PKTS 5
+#define MLX4_EN_TX_COAL_TIME 0x80
+
+#define MLX4_EN_RX_RATE_LOW 400000
+#define MLX4_EN_RX_COAL_TIME_LOW 0
+#define MLX4_EN_RX_RATE_HIGH 450000
+#define MLX4_EN_RX_COAL_TIME_HIGH 128
+#define MLX4_EN_RX_SIZE_THRESH 1024
+#define MLX4_EN_RX_RATE_THRESH (1000000 / MLX4_EN_RX_COAL_TIME_HIGH)
+#define MLX4_EN_SAMPLE_INTERVAL 0
+#define MLX4_EN_AVG_PKT_SMALL 256
+
+#define MLX4_EN_AUTO_CONF 0xffff
+
+#define MLX4_EN_DEF_RX_PAUSE 1
+#define MLX4_EN_DEF_TX_PAUSE 1
+
+/* Interval between successive polls in the Tx routine when polling is used
+ instead of interrupts (in per-core Tx rings) - should be power of 2 */
+#define MLX4_EN_TX_POLL_MODER 16
+#define MLX4_EN_TX_POLL_TIMEOUT (HZ / 4)
+
+#define ETH_LLC_SNAP_SIZE 8
+
+#define SMALL_PACKET_SIZE (256 - NET_IP_ALIGN)
+#define HEADER_COPY_SIZE (128 - NET_IP_ALIGN)
+#define MLX4_LOOPBACK_TEST_PAYLOAD (HEADER_COPY_SIZE - ETH_HLEN)
+
+#define MLX4_EN_MIN_MTU 46
+#define ETH_BCAST 0xffffffffffffULL
+
+#define MLX4_EN_LOOPBACK_RETRIES 5
+#define MLX4_EN_LOOPBACK_TIMEOUT 100
+
+#ifdef MLX4_EN_PERF_STAT
+/* Number of samples to 'average' */
+#define AVG_SIZE 128
+#define AVG_FACTOR 1024
+#define NUM_PERF_STATS NUM_PERF_COUNTERS
+
+#define INC_PERF_COUNTER(cnt) (++(cnt))
+#define ADD_PERF_COUNTER(cnt, add) ((cnt) += (add))
+#define AVG_PERF_COUNTER(cnt, sample) \
+ ((cnt) = ((cnt) * (AVG_SIZE - 1) + (sample) * AVG_FACTOR) / AVG_SIZE)
+#define GET_PERF_COUNTER(cnt) (cnt)
+#define GET_AVG_PERF_COUNTER(cnt) ((cnt) / AVG_FACTOR)
+
+#else
+
+#define NUM_PERF_STATS 0
+#define INC_PERF_COUNTER(cnt) do {} while (0)
+#define ADD_PERF_COUNTER(cnt, add) do {} while (0)
+#define AVG_PERF_COUNTER(cnt, sample) do {} while (0)
+#define GET_PERF_COUNTER(cnt) (0)
+#define GET_AVG_PERF_COUNTER(cnt) (0)
+#endif /* MLX4_EN_PERF_STAT */
+
+/*
+ * Configurables
+ */
+
+enum cq_type {
+ RX = 0,
+ TX = 1,
+};
+
+
+/*
+ * Useful macros
+ */
+#define ROUNDUP_LOG2(x) ilog2(roundup_pow_of_two(x))
+#define XNOR(x, y) (!(x) == !(y))
+#define ILLEGAL_MAC(addr) (addr == 0xffffffffffffULL || addr == 0x0)
+
+
+struct mlx4_en_tx_info {
+ struct sk_buff *skb;
+ u32 nr_txbb;
+ u8 linear;
+ u8 data_offset;
+ u8 inl;
+};
+
+
+#define MLX4_EN_BIT_DESC_OWN 0x80000000
+#define CTRL_SIZE sizeof(struct mlx4_wqe_ctrl_seg)
+#define MLX4_EN_MEMTYPE_PAD 0x100
+#define DS_SIZE sizeof(struct mlx4_wqe_data_seg)
+
+
+struct mlx4_en_tx_desc {
+ struct mlx4_wqe_ctrl_seg ctrl;
+ union {
+ struct mlx4_wqe_data_seg data; /* at least one data segment */
+ struct mlx4_wqe_lso_seg lso;
+ struct mlx4_wqe_inline_seg inl;
+ };
+};
+
+#define MLX4_EN_USE_SRQ 0x01000000
+
+#define MLX4_EN_CX3_LOW_ID 0x1000
+#define MLX4_EN_CX3_HIGH_ID 0x1005
+
+struct mlx4_en_rx_alloc {
+ struct page *page;
+ u16 offset;
+};
+
+struct mlx4_en_tx_ring {
+ struct mlx4_hwq_resources wqres;
+ u32 size ; /* number of TXBBs */
+ u32 size_mask;
+ u16 stride;
+ u16 cqn; /* index of port CQ associated with this ring */
+ u32 prod;
+ u32 cons;
+ u32 buf_size;
+ u32 doorbell_qpn;
+ void *buf;
+ u16 poll_cnt;
+ int blocked;
+ struct mlx4_en_tx_info *tx_info;
+ u8 *bounce_buf;
+ u32 last_nr_txbb;
+ struct mlx4_qp qp;
+ struct mlx4_qp_context context;
+ int qpn;
+ enum mlx4_qp_state qp_state;
+ struct mlx4_srq dummy;
+ unsigned long bytes;
+ unsigned long packets;
+ spinlock_t comp_lock;
+ struct mlx4_bf bf;
+ bool bf_enabled;
+};
+
+struct mlx4_en_rx_desc {
+ /* actual number of entries depends on rx ring stride */
+ struct mlx4_wqe_data_seg data[0];
+};
+
+struct mlx4_en_rx_ring {
+ struct mlx4_hwq_resources wqres;
+ struct mlx4_en_rx_alloc page_alloc[MLX4_EN_MAX_RX_FRAGS];
+ u32 size ; /* number of Rx descs*/
+ u32 actual_size;
+ u32 size_mask;
+ u16 stride;
+ u16 log_stride;
+ u16 cqn; /* index of port CQ associated with this ring */
+ u32 prod;
+ u32 cons;
+ u32 buf_size;
+ void *buf;
+ void *rx_info;
+ unsigned long bytes;
+ unsigned long packets;
+};
+
+
+static inline int mlx4_en_can_lro(__be16 status)
+{
+ return (status & cpu_to_be16(MLX4_CQE_STATUS_IPV4 |
+ MLX4_CQE_STATUS_IPV4F |
+ MLX4_CQE_STATUS_IPV6 |
+ MLX4_CQE_STATUS_IPV4OPT |
+ MLX4_CQE_STATUS_TCP |
+ MLX4_CQE_STATUS_UDP |
+ MLX4_CQE_STATUS_IPOK)) ==
+ cpu_to_be16(MLX4_CQE_STATUS_IPV4 |
+ MLX4_CQE_STATUS_IPOK |
+ MLX4_CQE_STATUS_TCP);
+}
+
+struct mlx4_en_cq {
+ struct mlx4_cq mcq;
+ struct mlx4_hwq_resources wqres;
+ int ring;
+ spinlock_t lock;
+ struct net_device *dev;
+ struct napi_struct napi;
+ /* Per-core Tx cq processing support */
+ struct timer_list timer;
+ int size;
+ int buf_size;
+ unsigned vector;
+ enum cq_type is_tx;
+ u16 moder_time;
+ u16 moder_cnt;
+ struct mlx4_cqe *buf;
+#define MLX4_EN_OPCODE_ERROR 0x1e
+};
+
+struct mlx4_en_port_profile {
+ u32 flags;
+ u32 tx_ring_num;
+ u32 rx_ring_num;
+ u32 tx_ring_size;
+ u32 rx_ring_size;
+ u8 rx_pause;
+ u8 rx_ppp;
+ u8 tx_pause;
+ u8 tx_ppp;
+};
+
+struct mlx4_en_profile {
+ int rss_xor;
+ int tcp_rss;
+ int udp_rss;
+ u8 rss_mask;
+ u32 active_ports;
+ u32 small_pkt_int;
+ u8 no_reset;
+ struct mlx4_en_port_profile prof[MLX4_MAX_PORTS + 1];
+};
+
+struct mlx4_en_dev {
+ struct mlx4_dev *dev;
+ struct pci_dev *pdev;
+ struct mutex state_lock;
+ struct net_device *pndev[MLX4_MAX_PORTS + 1];
+ u32 port_cnt;
+ bool device_up;
+ struct mlx4_en_profile profile;
+ u32 LSO_support;
+ struct workqueue_struct *workqueue;
+ struct device *dma_device;
+ void __iomem *uar_map;
+ struct mlx4_uar priv_uar;
+ struct mlx4_mr mr;
+ u32 priv_pdn;
+ spinlock_t uar_lock;
+ u8 mac_removed[MLX4_MAX_PORTS + 1];
+};
+
+
+struct mlx4_en_rss_map {
+ int base_qpn;
+ struct mlx4_qp qps[MAX_RX_RINGS];
+ enum mlx4_qp_state state[MAX_RX_RINGS];
+ struct mlx4_qp indir_qp;
+ enum mlx4_qp_state indir_state;
+};
+
+struct mlx4_en_rss_context {
+ __be32 base_qpn;
+ __be32 default_qpn;
+ u16 reserved;
+ u8 hash_fn;
+ u8 flags;
+ __be32 rss_key[10];
+ __be32 base_qpn_udp;
+};
+
+struct mlx4_en_port_state {
+ int link_state;
+ int link_speed;
+ int transciver;
+};
+
+struct mlx4_en_pkt_stats {
+ unsigned long broadcast;
+ unsigned long rx_prio[8];
+ unsigned long tx_prio[8];
+#define NUM_PKT_STATS 17
+};
+
+struct mlx4_en_port_stats {
+ unsigned long tso_packets;
+ unsigned long queue_stopped;
+ unsigned long wake_queue;
+ unsigned long tx_timeout;
+ unsigned long rx_alloc_failed;
+ unsigned long rx_chksum_good;
+ unsigned long rx_chksum_none;
+ unsigned long tx_chksum_offload;
+#define NUM_PORT_STATS 8
+};
+
+struct mlx4_en_perf_stats {
+ u32 tx_poll;
+ u64 tx_pktsz_avg;
+ u32 inflight_avg;
+ u16 tx_coal_avg;
+ u16 rx_coal_avg;
+ u32 napi_quota;
+#define NUM_PERF_COUNTERS 6
+};
+
+struct mlx4_en_frag_info {
+ u16 frag_size;
+ u16 frag_prefix_size;
+ u16 frag_stride;
+ u16 frag_align;
+ u16 last_offset;
+
+};
+
+struct mlx4_en_priv {
+ struct mlx4_en_dev *mdev;
+ struct mlx4_en_port_profile *prof;
+ struct net_device *dev;
+ unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
+ struct net_device_stats stats;
+ struct net_device_stats ret_stats;
+ struct mlx4_en_port_state port_state;
+ spinlock_t stats_lock;
+
+ unsigned long last_moder_packets;
+ unsigned long last_moder_tx_packets;
+ unsigned long last_moder_bytes;
+ unsigned long last_moder_jiffies;
+ int last_moder_time;
+ u16 rx_usecs;
+ u16 rx_frames;
+ u16 tx_usecs;
+ u16 tx_frames;
+ u32 pkt_rate_low;
+ u16 rx_usecs_low;
+ u32 pkt_rate_high;
+ u16 rx_usecs_high;
+ u16 sample_interval;
+ u16 adaptive_rx_coal;
+ u32 msg_enable;
+ u32 loopback_ok;
+ u32 validate_loopback;
+
+ struct mlx4_hwq_resources res;
+ int link_state;
+ int last_link_state;
+ bool port_up;
+ int port;
+ int registered;
+ int allocated;
+ int stride;
+ u64 mac;
+ int mac_index;
+ unsigned max_mtu;
+ int base_qpn;
+
+ struct mlx4_en_rss_map rss_map;
+ u32 flags;
+#define MLX4_EN_FLAG_PROMISC 0x1
+#define MLX4_EN_FLAG_MC_PROMISC 0x2
+ u32 tx_ring_num;
+ u32 rx_ring_num;
+ u32 rx_skb_size;
+ struct mlx4_en_frag_info frag_info[MLX4_EN_MAX_RX_FRAGS];
+ u16 num_frags;
+ u16 log_rx_info;
+
+ struct mlx4_en_tx_ring tx_ring[MAX_TX_RINGS];
+ int tx_vector;
+ struct mlx4_en_rx_ring rx_ring[MAX_RX_RINGS];
+ struct mlx4_en_cq tx_cq[MAX_TX_RINGS];
+ struct mlx4_en_cq rx_cq[MAX_RX_RINGS];
+ struct work_struct mcast_task;
+ struct work_struct mac_task;
+ struct work_struct watchdog_task;
+ struct work_struct linkstate_task;
+ struct delayed_work stats_task;
+ struct mlx4_en_perf_stats pstats;
+ struct mlx4_en_pkt_stats pkstats;
+ struct mlx4_en_port_stats port_stats;
+ char *mc_addrs;
+ int mc_addrs_cnt;
+ struct mlx4_en_stat_out_mbox hw_stats;
+ int vids[128];
+ bool wol;
+};
+
+enum mlx4_en_wol {
+ MLX4_EN_WOL_MAGIC = (1ULL << 61),
+ MLX4_EN_WOL_ENABLED = (1ULL << 62),
+ MLX4_EN_WOL_DO_MODIFY = (1ULL << 63),
+};
+
+
+void mlx4_en_destroy_netdev(struct net_device *dev);
+int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
+ struct mlx4_en_port_profile *prof);
+
+int mlx4_en_start_port(struct net_device *dev);
+void mlx4_en_stop_port(struct net_device *dev);
+
+void mlx4_en_free_resources(struct mlx4_en_priv *priv, bool reserve_vectors);
+int mlx4_en_alloc_resources(struct mlx4_en_priv *priv);
+
+int mlx4_en_create_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq,
+ int entries, int ring, enum cq_type mode);
+void mlx4_en_destroy_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq,
+ bool reserve_vectors);
+int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);
+void mlx4_en_deactivate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);
+int mlx4_en_set_cq_moder(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);
+int mlx4_en_arm_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);
+
+void mlx4_en_poll_tx_cq(unsigned long data);
+void mlx4_en_tx_irq(struct mlx4_cq *mcq);
+u16 mlx4_en_select_queue(struct net_device *dev, struct sk_buff *skb);
+netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev);
+
+int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv, struct mlx4_en_tx_ring *ring,
+ int qpn, u32 size, u16 stride);
+void mlx4_en_destroy_tx_ring(struct mlx4_en_priv *priv, struct mlx4_en_tx_ring *ring);
+int mlx4_en_activate_tx_ring(struct mlx4_en_priv *priv,
+ struct mlx4_en_tx_ring *ring,
+ int cq);
+void mlx4_en_deactivate_tx_ring(struct mlx4_en_priv *priv,
+ struct mlx4_en_tx_ring *ring);
+
+int mlx4_en_create_rx_ring(struct mlx4_en_priv *priv,
+ struct mlx4_en_rx_ring *ring,
+ u32 size, u16 stride);
+void mlx4_en_destroy_rx_ring(struct mlx4_en_priv *priv,
+ struct mlx4_en_rx_ring *ring);
+int mlx4_en_activate_rx_rings(struct mlx4_en_priv *priv);
+void mlx4_en_deactivate_rx_ring(struct mlx4_en_priv *priv,
+ struct mlx4_en_rx_ring *ring);
+int mlx4_en_process_rx_cq(struct net_device *dev,
+ struct mlx4_en_cq *cq,
+ int budget);
+int mlx4_en_poll_rx_cq(struct napi_struct *napi, int budget);
+void mlx4_en_fill_qp_context(struct mlx4_en_priv *priv, int size, int stride,
+ int is_tx, int rss, int qpn, int cqn,
+ struct mlx4_qp_context *context);
+void mlx4_en_sqp_event(struct mlx4_qp *qp, enum mlx4_event event);
+int mlx4_en_map_buffer(struct mlx4_buf *buf);
+void mlx4_en_unmap_buffer(struct mlx4_buf *buf);
+
+void mlx4_en_calc_rx_buf(struct net_device *dev);
+int mlx4_en_config_rss_steer(struct mlx4_en_priv *priv);
+void mlx4_en_release_rss_steer(struct mlx4_en_priv *priv);
+int mlx4_en_free_tx_buf(struct net_device *dev, struct mlx4_en_tx_ring *ring);
+void mlx4_en_rx_irq(struct mlx4_cq *mcq);
+
+int mlx4_SET_MCAST_FLTR(struct mlx4_dev *dev, u8 port, u64 mac, u64 clear, u8 mode);
+int mlx4_SET_VLAN_FLTR(struct mlx4_dev *dev, struct mlx4_en_priv *priv);
+int mlx4_SET_PORT_general(struct mlx4_dev *dev, u8 port, int mtu,
+ u8 pptx, u8 pfctx, u8 pprx, u8 pfcrx);
+int mlx4_SET_PORT_qpn_calc(struct mlx4_dev *dev, u8 port, u32 base_qpn,
+ u8 promisc);
+
+int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset);
+int mlx4_en_QUERY_PORT(struct mlx4_en_dev *mdev, u8 port);
+
+#define MLX4_EN_NUM_SELF_TEST 5
+void mlx4_en_ex_selftest(struct net_device *dev, u32 *flags, u64 *buf);
+u64 mlx4_en_mac_to_u64(u8 *addr);
+
+/*
+ * Globals
+ */
+extern const struct ethtool_ops mlx4_en_ethtool_ops;
+
+
+
+/*
+ * printk / logging functions
+ */
+
+int en_print(const char *level, const struct mlx4_en_priv *priv,
+ const char *format, ...) __attribute__ ((format (printf, 3, 4)));
+
+#define en_dbg(mlevel, priv, format, arg...) \
+do { \
+ if (NETIF_MSG_##mlevel & priv->msg_enable) \
+ en_print(KERN_DEBUG, priv, format, ##arg); \
+} while (0)
+#define en_warn(priv, format, arg...) \
+ en_print(KERN_WARNING, priv, format, ##arg)
+#define en_err(priv, format, arg...) \
+ en_print(KERN_ERR, priv, format, ##arg)
+#define en_info(priv, format, arg...) \
+ en_print(KERN_INFO, priv, format, ## arg)
+
+#define mlx4_err(mdev, format, arg...) \
+ pr_err("%s %s: " format, DRV_NAME, \
+ dev_name(&mdev->pdev->dev), ##arg)
+#define mlx4_info(mdev, format, arg...) \
+ pr_info("%s %s: " format, DRV_NAME, \
+ dev_name(&mdev->pdev->dev), ##arg)
+#define mlx4_warn(mdev, format, arg...) \
+ pr_warning("%s %s: " format, DRV_NAME, \
+ dev_name(&mdev->pdev->dev), ##arg)
+
+#endif
--- /dev/null
+/*
+ * Copyright (c) 2004 Topspin Communications. All rights reserved.
+ * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/errno.h>
+#include <linux/slab.h>
+
+#include <linux/mlx4/cmd.h>
+
+#include "mlx4.h"
+#include "icm.h"
+
+/*
+ * Must be packed because mtt_seg is 64 bits but only aligned to 32 bits.
+ */
+struct mlx4_mpt_entry {
+ __be32 flags;
+ __be32 qpn;
+ __be32 key;
+ __be32 pd_flags;
+ __be64 start;
+ __be64 length;
+ __be32 lkey;
+ __be32 win_cnt;
+ u8 reserved1[3];
+ u8 mtt_rep;
+ __be64 mtt_seg;
+ __be32 mtt_sz;
+ __be32 entity_size;
+ __be32 first_byte_offset;
+} __packed;
+
+#define MLX4_MPT_FLAG_SW_OWNS (0xfUL << 28)
+#define MLX4_MPT_FLAG_FREE (0x3UL << 28)
+#define MLX4_MPT_FLAG_MIO (1 << 17)
+#define MLX4_MPT_FLAG_BIND_ENABLE (1 << 15)
+#define MLX4_MPT_FLAG_PHYSICAL (1 << 9)
+#define MLX4_MPT_FLAG_REGION (1 << 8)
+
+#define MLX4_MPT_PD_FLAG_FAST_REG (1 << 27)
+#define MLX4_MPT_PD_FLAG_RAE (1 << 28)
+#define MLX4_MPT_PD_FLAG_EN_INV (3 << 24)
+
+#define MLX4_MPT_STATUS_SW 0xF0
+#define MLX4_MPT_STATUS_HW 0x00
+
+static u32 mlx4_buddy_alloc(struct mlx4_buddy *buddy, int order)
+{
+ int o;
+ int m;
+ u32 seg;
+
+ spin_lock(&buddy->lock);
+
+ for (o = order; o <= buddy->max_order; ++o)
+ if (buddy->num_free[o]) {
+ m = 1 << (buddy->max_order - o);
+ seg = find_first_bit(buddy->bits[o], m);
+ if (seg < m)
+ goto found;
+ }
+
+ spin_unlock(&buddy->lock);
+ return -1;
+
+ found:
+ clear_bit(seg, buddy->bits[o]);
+ --buddy->num_free[o];
+
+ while (o > order) {
+ --o;
+ seg <<= 1;
+ set_bit(seg ^ 1, buddy->bits[o]);
+ ++buddy->num_free[o];
+ }
+
+ spin_unlock(&buddy->lock);
+
+ seg <<= order;
+
+ return seg;
+}
+
+static void mlx4_buddy_free(struct mlx4_buddy *buddy, u32 seg, int order)
+{
+ seg >>= order;
+
+ spin_lock(&buddy->lock);
+
+ while (test_bit(seg ^ 1, buddy->bits[order])) {
+ clear_bit(seg ^ 1, buddy->bits[order]);
+ --buddy->num_free[order];
+ seg >>= 1;
+ ++order;
+ }
+
+ set_bit(seg, buddy->bits[order]);
+ ++buddy->num_free[order];
+
+ spin_unlock(&buddy->lock);
+}
+
+static int mlx4_buddy_init(struct mlx4_buddy *buddy, int max_order)
+{
+ int i, s;
+
+ buddy->max_order = max_order;
+ spin_lock_init(&buddy->lock);
+
+ buddy->bits = kzalloc((buddy->max_order + 1) * sizeof (long *),
+ GFP_KERNEL);
+ buddy->num_free = kzalloc((buddy->max_order + 1) * sizeof (int *),
+ GFP_KERNEL);
+ if (!buddy->bits || !buddy->num_free)
+ goto err_out;
+
+ for (i = 0; i <= buddy->max_order; ++i) {
+ s = BITS_TO_LONGS(1 << (buddy->max_order - i));
+ buddy->bits[i] = kmalloc(s * sizeof (long), GFP_KERNEL);
+ if (!buddy->bits[i])
+ goto err_out_free;
+ bitmap_zero(buddy->bits[i], 1 << (buddy->max_order - i));
+ }
+
+ set_bit(0, buddy->bits[buddy->max_order]);
+ buddy->num_free[buddy->max_order] = 1;
+
+ return 0;
+
+err_out_free:
+ for (i = 0; i <= buddy->max_order; ++i)
+ kfree(buddy->bits[i]);
+
+err_out:
+ kfree(buddy->bits);
+ kfree(buddy->num_free);
+
+ return -ENOMEM;
+}
+
+static void mlx4_buddy_cleanup(struct mlx4_buddy *buddy)
+{
+ int i;
+
+ for (i = 0; i <= buddy->max_order; ++i)
+ kfree(buddy->bits[i]);
+
+ kfree(buddy->bits);
+ kfree(buddy->num_free);
+}
+
+static u32 mlx4_alloc_mtt_range(struct mlx4_dev *dev, int order)
+{
+ struct mlx4_mr_table *mr_table = &mlx4_priv(dev)->mr_table;
+ u32 seg;
+
+ seg = mlx4_buddy_alloc(&mr_table->mtt_buddy, order);
+ if (seg == -1)
+ return -1;
+
+ if (mlx4_table_get_range(dev, &mr_table->mtt_table, seg,
+ seg + (1 << order) - 1)) {
+ mlx4_buddy_free(&mr_table->mtt_buddy, seg, order);
+ return -1;
+ }
+
+ return seg;
+}
+
+int mlx4_mtt_init(struct mlx4_dev *dev, int npages, int page_shift,
+ struct mlx4_mtt *mtt)
+{
+ int i;
+
+ if (!npages) {
+ mtt->order = -1;
+ mtt->page_shift = MLX4_ICM_PAGE_SHIFT;
+ return 0;
+ } else
+ mtt->page_shift = page_shift;
+
+ for (mtt->order = 0, i = dev->caps.mtts_per_seg; i < npages; i <<= 1)
+ ++mtt->order;
+
+ mtt->first_seg = mlx4_alloc_mtt_range(dev, mtt->order);
+ if (mtt->first_seg == -1)
+ return -ENOMEM;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mlx4_mtt_init);
+
+void mlx4_mtt_cleanup(struct mlx4_dev *dev, struct mlx4_mtt *mtt)
+{
+ struct mlx4_mr_table *mr_table = &mlx4_priv(dev)->mr_table;
+
+ if (mtt->order < 0)
+ return;
+
+ mlx4_buddy_free(&mr_table->mtt_buddy, mtt->first_seg, mtt->order);
+ mlx4_table_put_range(dev, &mr_table->mtt_table, mtt->first_seg,
+ mtt->first_seg + (1 << mtt->order) - 1);
+}
+EXPORT_SYMBOL_GPL(mlx4_mtt_cleanup);
+
+u64 mlx4_mtt_addr(struct mlx4_dev *dev, struct mlx4_mtt *mtt)
+{
+ return (u64) mtt->first_seg * dev->caps.mtt_entry_sz;
+}
+EXPORT_SYMBOL_GPL(mlx4_mtt_addr);
+
+static u32 hw_index_to_key(u32 ind)
+{
+ return (ind >> 24) | (ind << 8);
+}
+
+static u32 key_to_hw_index(u32 key)
+{
+ return (key << 24) | (key >> 8);
+}
+
+static int mlx4_SW2HW_MPT(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
+ int mpt_index)
+{
+ return mlx4_cmd(dev, mailbox->dma, mpt_index, 0, MLX4_CMD_SW2HW_MPT,
+ MLX4_CMD_TIME_CLASS_B);
+}
+
+static int mlx4_HW2SW_MPT(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
+ int mpt_index)
+{
+ return mlx4_cmd_box(dev, 0, mailbox ? mailbox->dma : 0, mpt_index,
+ !mailbox, MLX4_CMD_HW2SW_MPT, MLX4_CMD_TIME_CLASS_B);
+}
+
+int mlx4_mr_alloc(struct mlx4_dev *dev, u32 pd, u64 iova, u64 size, u32 access,
+ int npages, int page_shift, struct mlx4_mr *mr)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ u32 index;
+ int err;
+
+ index = mlx4_bitmap_alloc(&priv->mr_table.mpt_bitmap);
+ if (index == -1)
+ return -ENOMEM;
+
+ mr->iova = iova;
+ mr->size = size;
+ mr->pd = pd;
+ mr->access = access;
+ mr->enabled = 0;
+ mr->key = hw_index_to_key(index);
+
+ err = mlx4_mtt_init(dev, npages, page_shift, &mr->mtt);
+ if (err)
+ mlx4_bitmap_free(&priv->mr_table.mpt_bitmap, index);
+
+ return err;
+}
+EXPORT_SYMBOL_GPL(mlx4_mr_alloc);
+
+void mlx4_mr_free(struct mlx4_dev *dev, struct mlx4_mr *mr)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ int err;
+
+ if (mr->enabled) {
+ err = mlx4_HW2SW_MPT(dev, NULL,
+ key_to_hw_index(mr->key) &
+ (dev->caps.num_mpts - 1));
+ if (err)
+ mlx4_warn(dev, "HW2SW_MPT failed (%d)\n", err);
+ }
+
+ mlx4_mtt_cleanup(dev, &mr->mtt);
+ mlx4_bitmap_free(&priv->mr_table.mpt_bitmap, key_to_hw_index(mr->key));
+}
+EXPORT_SYMBOL_GPL(mlx4_mr_free);
+
+int mlx4_mr_enable(struct mlx4_dev *dev, struct mlx4_mr *mr)
+{
+ struct mlx4_mr_table *mr_table = &mlx4_priv(dev)->mr_table;
+ struct mlx4_cmd_mailbox *mailbox;
+ struct mlx4_mpt_entry *mpt_entry;
+ int err;
+
+ err = mlx4_table_get(dev, &mr_table->dmpt_table, key_to_hw_index(mr->key));
+ if (err)
+ return err;
+
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox)) {
+ err = PTR_ERR(mailbox);
+ goto err_table;
+ }
+ mpt_entry = mailbox->buf;
+
+ memset(mpt_entry, 0, sizeof *mpt_entry);
+
+ mpt_entry->flags = cpu_to_be32(MLX4_MPT_FLAG_MIO |
+ MLX4_MPT_FLAG_REGION |
+ mr->access);
+
+ mpt_entry->key = cpu_to_be32(key_to_hw_index(mr->key));
+ mpt_entry->pd_flags = cpu_to_be32(mr->pd | MLX4_MPT_PD_FLAG_EN_INV);
+ mpt_entry->start = cpu_to_be64(mr->iova);
+ mpt_entry->length = cpu_to_be64(mr->size);
+ mpt_entry->entity_size = cpu_to_be32(mr->mtt.page_shift);
+
+ if (mr->mtt.order < 0) {
+ mpt_entry->flags |= cpu_to_be32(MLX4_MPT_FLAG_PHYSICAL);
+ mpt_entry->mtt_seg = 0;
+ } else {
+ mpt_entry->mtt_seg = cpu_to_be64(mlx4_mtt_addr(dev, &mr->mtt));
+ }
+
+ if (mr->mtt.order >= 0 && mr->mtt.page_shift == 0) {
+ /* fast register MR in free state */
+ mpt_entry->flags |= cpu_to_be32(MLX4_MPT_FLAG_FREE);
+ mpt_entry->pd_flags |= cpu_to_be32(MLX4_MPT_PD_FLAG_FAST_REG |
+ MLX4_MPT_PD_FLAG_RAE);
+ mpt_entry->mtt_sz = cpu_to_be32((1 << mr->mtt.order) *
+ dev->caps.mtts_per_seg);
+ } else {
+ mpt_entry->flags |= cpu_to_be32(MLX4_MPT_FLAG_SW_OWNS);
+ }
+
+ err = mlx4_SW2HW_MPT(dev, mailbox,
+ key_to_hw_index(mr->key) & (dev->caps.num_mpts - 1));
+ if (err) {
+ mlx4_warn(dev, "SW2HW_MPT failed (%d)\n", err);
+ goto err_cmd;
+ }
+
+ mr->enabled = 1;
+
+ mlx4_free_cmd_mailbox(dev, mailbox);
+
+ return 0;
+
+err_cmd:
+ mlx4_free_cmd_mailbox(dev, mailbox);
+
+err_table:
+ mlx4_table_put(dev, &mr_table->dmpt_table, key_to_hw_index(mr->key));
+ return err;
+}
+EXPORT_SYMBOL_GPL(mlx4_mr_enable);
+
+static int mlx4_write_mtt_chunk(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
+ int start_index, int npages, u64 *page_list)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ __be64 *mtts;
+ dma_addr_t dma_handle;
+ int i;
+ int s = start_index * sizeof (u64);
+
+ /* All MTTs must fit in the same page */
+ if (start_index / (PAGE_SIZE / sizeof (u64)) !=
+ (start_index + npages - 1) / (PAGE_SIZE / sizeof (u64)))
+ return -EINVAL;
+
+ if (start_index & (dev->caps.mtts_per_seg - 1))
+ return -EINVAL;
+
+ mtts = mlx4_table_find(&priv->mr_table.mtt_table, mtt->first_seg +
+ s / dev->caps.mtt_entry_sz, &dma_handle);
+ if (!mtts)
+ return -ENOMEM;
+
+ dma_sync_single_for_cpu(&dev->pdev->dev, dma_handle,
+ npages * sizeof (u64), DMA_TO_DEVICE);
+
+ for (i = 0; i < npages; ++i)
+ mtts[i] = cpu_to_be64(page_list[i] | MLX4_MTT_FLAG_PRESENT);
+
+ dma_sync_single_for_device(&dev->pdev->dev, dma_handle,
+ npages * sizeof (u64), DMA_TO_DEVICE);
+
+ return 0;
+}
+
+int mlx4_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
+ int start_index, int npages, u64 *page_list)
+{
+ int chunk;
+ int err;
+
+ if (mtt->order < 0)
+ return -EINVAL;
+
+ while (npages > 0) {
+ chunk = min_t(int, PAGE_SIZE / sizeof(u64), npages);
+ err = mlx4_write_mtt_chunk(dev, mtt, start_index, chunk, page_list);
+ if (err)
+ return err;
+
+ npages -= chunk;
+ start_index += chunk;
+ page_list += chunk;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mlx4_write_mtt);
+
+int mlx4_buf_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
+ struct mlx4_buf *buf)
+{
+ u64 *page_list;
+ int err;
+ int i;
+
+ page_list = kmalloc(buf->npages * sizeof *page_list, GFP_KERNEL);
+ if (!page_list)
+ return -ENOMEM;
+
+ for (i = 0; i < buf->npages; ++i)
+ if (buf->nbufs == 1)
+ page_list[i] = buf->direct.map + (i << buf->page_shift);
+ else
+ page_list[i] = buf->page_list[i].map;
+
+ err = mlx4_write_mtt(dev, mtt, 0, buf->npages, page_list);
+
+ kfree(page_list);
+ return err;
+}
+EXPORT_SYMBOL_GPL(mlx4_buf_write_mtt);
+
+int mlx4_init_mr_table(struct mlx4_dev *dev)
+{
+ struct mlx4_mr_table *mr_table = &mlx4_priv(dev)->mr_table;
+ int err;
+
+ err = mlx4_bitmap_init(&mr_table->mpt_bitmap, dev->caps.num_mpts,
+ ~0, dev->caps.reserved_mrws, 0);
+ if (err)
+ return err;
+
+ err = mlx4_buddy_init(&mr_table->mtt_buddy,
+ ilog2(dev->caps.num_mtt_segs));
+ if (err)
+ goto err_buddy;
+
+ if (dev->caps.reserved_mtts) {
+ if (mlx4_alloc_mtt_range(dev, fls(dev->caps.reserved_mtts - 1)) == -1) {
+ mlx4_warn(dev, "MTT table of order %d is too small.\n",
+ mr_table->mtt_buddy.max_order);
+ err = -ENOMEM;
+ goto err_reserve_mtts;
+ }
+ }
+
+ return 0;
+
+err_reserve_mtts:
+ mlx4_buddy_cleanup(&mr_table->mtt_buddy);
+
+err_buddy:
+ mlx4_bitmap_cleanup(&mr_table->mpt_bitmap);
+
+ return err;
+}
+
+void mlx4_cleanup_mr_table(struct mlx4_dev *dev)
+{
+ struct mlx4_mr_table *mr_table = &mlx4_priv(dev)->mr_table;
+
+ mlx4_buddy_cleanup(&mr_table->mtt_buddy);
+ mlx4_bitmap_cleanup(&mr_table->mpt_bitmap);
+}
+
+static inline int mlx4_check_fmr(struct mlx4_fmr *fmr, u64 *page_list,
+ int npages, u64 iova)
+{
+ int i, page_mask;
+
+ if (npages > fmr->max_pages)
+ return -EINVAL;
+
+ page_mask = (1 << fmr->page_shift) - 1;
+
+ /* We are getting page lists, so va must be page aligned. */
+ if (iova & page_mask)
+ return -EINVAL;
+
+ /* Trust the user not to pass misaligned data in page_list */
+ if (0)
+ for (i = 0; i < npages; ++i) {
+ if (page_list[i] & ~page_mask)
+ return -EINVAL;
+ }
+
+ if (fmr->maps >= fmr->max_maps)
+ return -EINVAL;
+
+ return 0;
+}
+
+int mlx4_map_phys_fmr(struct mlx4_dev *dev, struct mlx4_fmr *fmr, u64 *page_list,
+ int npages, u64 iova, u32 *lkey, u32 *rkey)
+{
+ u32 key;
+ int i, err;
+
+ err = mlx4_check_fmr(fmr, page_list, npages, iova);
+ if (err)
+ return err;
+
+ ++fmr->maps;
+
+ key = key_to_hw_index(fmr->mr.key);
+ key += dev->caps.num_mpts;
+ *lkey = *rkey = fmr->mr.key = hw_index_to_key(key);
+
+ *(u8 *) fmr->mpt = MLX4_MPT_STATUS_SW;
+
+ /* Make sure MPT status is visible before writing MTT entries */
+ wmb();
+
+ dma_sync_single_for_cpu(&dev->pdev->dev, fmr->dma_handle,
+ npages * sizeof(u64), DMA_TO_DEVICE);
+
+ for (i = 0; i < npages; ++i)
+ fmr->mtts[i] = cpu_to_be64(page_list[i] | MLX4_MTT_FLAG_PRESENT);
+
+ dma_sync_single_for_device(&dev->pdev->dev, fmr->dma_handle,
+ npages * sizeof(u64), DMA_TO_DEVICE);
+
+ fmr->mpt->key = cpu_to_be32(key);
+ fmr->mpt->lkey = cpu_to_be32(key);
+ fmr->mpt->length = cpu_to_be64(npages * (1ull << fmr->page_shift));
+ fmr->mpt->start = cpu_to_be64(iova);
+
+ /* Make MTT entries are visible before setting MPT status */
+ wmb();
+
+ *(u8 *) fmr->mpt = MLX4_MPT_STATUS_HW;
+
+ /* Make sure MPT status is visible before consumer can use FMR */
+ wmb();
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mlx4_map_phys_fmr);
+
+int mlx4_fmr_alloc(struct mlx4_dev *dev, u32 pd, u32 access, int max_pages,
+ int max_maps, u8 page_shift, struct mlx4_fmr *fmr)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ u64 mtt_seg;
+ int err = -ENOMEM;
+
+ if (page_shift < (ffs(dev->caps.page_size_cap) - 1) || page_shift >= 32)
+ return -EINVAL;
+
+ /* All MTTs must fit in the same page */
+ if (max_pages * sizeof *fmr->mtts > PAGE_SIZE)
+ return -EINVAL;
+
+ fmr->page_shift = page_shift;
+ fmr->max_pages = max_pages;
+ fmr->max_maps = max_maps;
+ fmr->maps = 0;
+
+ err = mlx4_mr_alloc(dev, pd, 0, 0, access, max_pages,
+ page_shift, &fmr->mr);
+ if (err)
+ return err;
+
+ mtt_seg = fmr->mr.mtt.first_seg * dev->caps.mtt_entry_sz;
+
+ fmr->mtts = mlx4_table_find(&priv->mr_table.mtt_table,
+ fmr->mr.mtt.first_seg,
+ &fmr->dma_handle);
+ if (!fmr->mtts) {
+ err = -ENOMEM;
+ goto err_free;
+ }
+
+ return 0;
+
+err_free:
+ mlx4_mr_free(dev, &fmr->mr);
+ return err;
+}
+EXPORT_SYMBOL_GPL(mlx4_fmr_alloc);
+
+int mlx4_fmr_enable(struct mlx4_dev *dev, struct mlx4_fmr *fmr)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ int err;
+
+ err = mlx4_mr_enable(dev, &fmr->mr);
+ if (err)
+ return err;
+
+ fmr->mpt = mlx4_table_find(&priv->mr_table.dmpt_table,
+ key_to_hw_index(fmr->mr.key), NULL);
+ if (!fmr->mpt)
+ return -ENOMEM;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mlx4_fmr_enable);
+
+void mlx4_fmr_unmap(struct mlx4_dev *dev, struct mlx4_fmr *fmr,
+ u32 *lkey, u32 *rkey)
+{
+ if (!fmr->maps)
+ return;
+
+ fmr->maps = 0;
+
+ *(u8 *) fmr->mpt = MLX4_MPT_STATUS_SW;
+}
+EXPORT_SYMBOL_GPL(mlx4_fmr_unmap);
+
+int mlx4_fmr_free(struct mlx4_dev *dev, struct mlx4_fmr *fmr)
+{
+ if (fmr->maps)
+ return -EBUSY;
+
+ fmr->mr.enabled = 0;
+ mlx4_mr_free(dev, &fmr->mr);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mlx4_fmr_free);
+
+int mlx4_SYNC_TPT(struct mlx4_dev *dev)
+{
+ return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_SYNC_TPT, 1000);
+}
+EXPORT_SYMBOL_GPL(mlx4_SYNC_TPT);
--- /dev/null
+/*
+ * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
+ * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/errno.h>
+#include <linux/io-mapping.h>
+
+#include <asm/page.h>
+
+#include "mlx4.h"
+#include "icm.h"
+
+enum {
+ MLX4_NUM_RESERVED_UARS = 8
+};
+
+int mlx4_pd_alloc(struct mlx4_dev *dev, u32 *pdn)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+
+ *pdn = mlx4_bitmap_alloc(&priv->pd_bitmap);
+ if (*pdn == -1)
+ return -ENOMEM;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mlx4_pd_alloc);
+
+void mlx4_pd_free(struct mlx4_dev *dev, u32 pdn)
+{
+ mlx4_bitmap_free(&mlx4_priv(dev)->pd_bitmap, pdn);
+}
+EXPORT_SYMBOL_GPL(mlx4_pd_free);
+
+int mlx4_init_pd_table(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+
+ return mlx4_bitmap_init(&priv->pd_bitmap, dev->caps.num_pds,
+ (1 << 24) - 1, dev->caps.reserved_pds, 0);
+}
+
+void mlx4_cleanup_pd_table(struct mlx4_dev *dev)
+{
+ mlx4_bitmap_cleanup(&mlx4_priv(dev)->pd_bitmap);
+}
+
+
+int mlx4_uar_alloc(struct mlx4_dev *dev, struct mlx4_uar *uar)
+{
+ uar->index = mlx4_bitmap_alloc(&mlx4_priv(dev)->uar_table.bitmap);
+ if (uar->index == -1)
+ return -ENOMEM;
+
+ uar->pfn = (pci_resource_start(dev->pdev, 2) >> PAGE_SHIFT) + uar->index;
+ uar->map = NULL;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mlx4_uar_alloc);
+
+void mlx4_uar_free(struct mlx4_dev *dev, struct mlx4_uar *uar)
+{
+ mlx4_bitmap_free(&mlx4_priv(dev)->uar_table.bitmap, uar->index);
+}
+EXPORT_SYMBOL_GPL(mlx4_uar_free);
+
+int mlx4_bf_alloc(struct mlx4_dev *dev, struct mlx4_bf *bf)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ struct mlx4_uar *uar;
+ int err = 0;
+ int idx;
+
+ if (!priv->bf_mapping)
+ return -ENOMEM;
+
+ mutex_lock(&priv->bf_mutex);
+ if (!list_empty(&priv->bf_list))
+ uar = list_entry(priv->bf_list.next, struct mlx4_uar, bf_list);
+ else {
+ if (mlx4_bitmap_avail(&priv->uar_table.bitmap) < MLX4_NUM_RESERVED_UARS) {
+ err = -ENOMEM;
+ goto out;
+ }
+ uar = kmalloc(sizeof *uar, GFP_KERNEL);
+ if (!uar) {
+ err = -ENOMEM;
+ goto out;
+ }
+ err = mlx4_uar_alloc(dev, uar);
+ if (err)
+ goto free_kmalloc;
+
+ uar->map = ioremap(uar->pfn << PAGE_SHIFT, PAGE_SIZE);
+ if (!uar->map) {
+ err = -ENOMEM;
+ goto free_uar;
+ }
+
+ uar->bf_map = io_mapping_map_wc(priv->bf_mapping, uar->index << PAGE_SHIFT);
+ if (!uar->bf_map) {
+ err = -ENOMEM;
+ goto unamp_uar;
+ }
+ uar->free_bf_bmap = 0;
+ list_add(&uar->bf_list, &priv->bf_list);
+ }
+
+ bf->uar = uar;
+ idx = ffz(uar->free_bf_bmap);
+ uar->free_bf_bmap |= 1 << idx;
+ bf->uar = uar;
+ bf->offset = 0;
+ bf->buf_size = dev->caps.bf_reg_size / 2;
+ bf->reg = uar->bf_map + idx * dev->caps.bf_reg_size;
+ if (uar->free_bf_bmap == (1 << dev->caps.bf_regs_per_page) - 1)
+ list_del_init(&uar->bf_list);
+
+ goto out;
+
+unamp_uar:
+ bf->uar = NULL;
+ iounmap(uar->map);
+
+free_uar:
+ mlx4_uar_free(dev, uar);
+
+free_kmalloc:
+ kfree(uar);
+
+out:
+ mutex_unlock(&priv->bf_mutex);
+ return err;
+}
+EXPORT_SYMBOL_GPL(mlx4_bf_alloc);
+
+void mlx4_bf_free(struct mlx4_dev *dev, struct mlx4_bf *bf)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ int idx;
+
+ if (!bf->uar || !bf->uar->bf_map)
+ return;
+
+ mutex_lock(&priv->bf_mutex);
+ idx = (bf->reg - bf->uar->bf_map) / dev->caps.bf_reg_size;
+ bf->uar->free_bf_bmap &= ~(1 << idx);
+ if (!bf->uar->free_bf_bmap) {
+ if (!list_empty(&bf->uar->bf_list))
+ list_del(&bf->uar->bf_list);
+
+ io_mapping_unmap(bf->uar->bf_map);
+ iounmap(bf->uar->map);
+ mlx4_uar_free(dev, bf->uar);
+ kfree(bf->uar);
+ } else if (list_empty(&bf->uar->bf_list))
+ list_add(&bf->uar->bf_list, &priv->bf_list);
+
+ mutex_unlock(&priv->bf_mutex);
+}
+EXPORT_SYMBOL_GPL(mlx4_bf_free);
+
+int mlx4_init_uar_table(struct mlx4_dev *dev)
+{
+ if (dev->caps.num_uars <= 128) {
+ mlx4_err(dev, "Only %d UAR pages (need more than 128)\n",
+ dev->caps.num_uars);
+ mlx4_err(dev, "Increase firmware log2_uar_bar_megabytes?\n");
+ return -ENODEV;
+ }
+
+ return mlx4_bitmap_init(&mlx4_priv(dev)->uar_table.bitmap,
+ dev->caps.num_uars, dev->caps.num_uars - 1,
+ max(128, dev->caps.reserved_uars), 0);
+}
+
+void mlx4_cleanup_uar_table(struct mlx4_dev *dev)
+{
+ mlx4_bitmap_cleanup(&mlx4_priv(dev)->uar_table.bitmap);
+}
--- /dev/null
+/*
+ * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/errno.h>
+#include <linux/if_ether.h>
+
+#include <linux/mlx4/cmd.h>
+
+#include "mlx4.h"
+
+#define MLX4_MAC_VALID (1ull << 63)
+#define MLX4_MAC_MASK 0xffffffffffffULL
+
+#define MLX4_VLAN_VALID (1u << 31)
+#define MLX4_VLAN_MASK 0xfff
+
+void mlx4_init_mac_table(struct mlx4_dev *dev, struct mlx4_mac_table *table)
+{
+ int i;
+
+ mutex_init(&table->mutex);
+ for (i = 0; i < MLX4_MAX_MAC_NUM; i++) {
+ table->entries[i] = 0;
+ table->refs[i] = 0;
+ }
+ table->max = 1 << dev->caps.log_num_macs;
+ table->total = 0;
+}
+
+void mlx4_init_vlan_table(struct mlx4_dev *dev, struct mlx4_vlan_table *table)
+{
+ int i;
+
+ mutex_init(&table->mutex);
+ for (i = 0; i < MLX4_MAX_VLAN_NUM; i++) {
+ table->entries[i] = 0;
+ table->refs[i] = 0;
+ }
+ table->max = 1 << dev->caps.log_num_vlans;
+ table->total = 0;
+}
+
+static int mlx4_set_port_mac_table(struct mlx4_dev *dev, u8 port,
+ __be64 *entries)
+{
+ struct mlx4_cmd_mailbox *mailbox;
+ u32 in_mod;
+ int err;
+
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox))
+ return PTR_ERR(mailbox);
+
+ memcpy(mailbox->buf, entries, MLX4_MAC_TABLE_SIZE);
+
+ in_mod = MLX4_SET_PORT_MAC_TABLE << 8 | port;
+ err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT,
+ MLX4_CMD_TIME_CLASS_B);
+
+ mlx4_free_cmd_mailbox(dev, mailbox);
+ return err;
+}
+
+static int mlx4_uc_steer_add(struct mlx4_dev *dev, u8 port,
+ u64 mac, int *qpn, u8 reserve)
+{
+ struct mlx4_qp qp;
+ u8 gid[16] = {0};
+ int err;
+
+ if (reserve) {
+ err = mlx4_qp_reserve_range(dev, 1, 1, qpn);
+ if (err) {
+ mlx4_err(dev, "Failed to reserve qp for mac registration\n");
+ return err;
+ }
+ }
+ qp.qpn = *qpn;
+
+ mac &= 0xffffffffffffULL;
+ mac = cpu_to_be64(mac << 16);
+ memcpy(&gid[10], &mac, ETH_ALEN);
+ gid[5] = port;
+ gid[7] = MLX4_UC_STEER << 1;
+
+ err = mlx4_qp_attach_common(dev, &qp, gid, 0,
+ MLX4_PROT_ETH, MLX4_UC_STEER);
+ if (err && reserve)
+ mlx4_qp_release_range(dev, *qpn, 1);
+
+ return err;
+}
+
+static void mlx4_uc_steer_release(struct mlx4_dev *dev, u8 port,
+ u64 mac, int qpn, u8 free)
+{
+ struct mlx4_qp qp;
+ u8 gid[16] = {0};
+
+ qp.qpn = qpn;
+ mac &= 0xffffffffffffULL;
+ mac = cpu_to_be64(mac << 16);
+ memcpy(&gid[10], &mac, ETH_ALEN);
+ gid[5] = port;
+ gid[7] = MLX4_UC_STEER << 1;
+
+ mlx4_qp_detach_common(dev, &qp, gid, MLX4_PROT_ETH, MLX4_UC_STEER);
+ if (free)
+ mlx4_qp_release_range(dev, qpn, 1);
+}
+
+int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac, int *qpn, u8 wrap)
+{
+ struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
+ struct mlx4_mac_table *table = &info->mac_table;
+ struct mlx4_mac_entry *entry;
+ int i, err = 0;
+ int free = -1;
+
+ if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER) {
+ err = mlx4_uc_steer_add(dev, port, mac, qpn, 1);
+ if (!err) {
+ entry = kmalloc(sizeof *entry, GFP_KERNEL);
+ if (!entry) {
+ mlx4_uc_steer_release(dev, port, mac, *qpn, 1);
+ return -ENOMEM;
+ }
+ entry->mac = mac;
+ err = radix_tree_insert(&info->mac_tree, *qpn, entry);
+ if (err) {
+ mlx4_uc_steer_release(dev, port, mac, *qpn, 1);
+ return err;
+ }
+ } else
+ return err;
+ }
+ mlx4_dbg(dev, "Registering MAC: 0x%llx\n", (unsigned long long) mac);
+ mutex_lock(&table->mutex);
+ for (i = 0; i < MLX4_MAX_MAC_NUM - 1; i++) {
+ if (free < 0 && !table->refs[i]) {
+ free = i;
+ continue;
+ }
+
+ if (mac == (MLX4_MAC_MASK & be64_to_cpu(table->entries[i]))) {
+ /* MAC already registered, increase references count */
+ ++table->refs[i];
+ goto out;
+ }
+ }
+
+ if (free < 0) {
+ err = -ENOMEM;
+ goto out;
+ }
+
+ mlx4_dbg(dev, "Free MAC index is %d\n", free);
+
+ if (table->total == table->max) {
+ /* No free mac entries */
+ err = -ENOSPC;
+ goto out;
+ }
+
+ /* Register new MAC */
+ table->refs[free] = 1;
+ table->entries[free] = cpu_to_be64(mac | MLX4_MAC_VALID);
+
+ err = mlx4_set_port_mac_table(dev, port, table->entries);
+ if (unlikely(err)) {
+ mlx4_err(dev, "Failed adding MAC: 0x%llx\n", (unsigned long long) mac);
+ table->refs[free] = 0;
+ table->entries[free] = 0;
+ goto out;
+ }
+
+ if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER))
+ *qpn = info->base_qpn + free;
+ ++table->total;
+out:
+ mutex_unlock(&table->mutex);
+ return err;
+}
+EXPORT_SYMBOL_GPL(mlx4_register_mac);
+
+static int validate_index(struct mlx4_dev *dev,
+ struct mlx4_mac_table *table, int index)
+{
+ int err = 0;
+
+ if (index < 0 || index >= table->max || !table->entries[index]) {
+ mlx4_warn(dev, "No valid Mac entry for the given index\n");
+ err = -EINVAL;
+ }
+ return err;
+}
+
+static int find_index(struct mlx4_dev *dev,
+ struct mlx4_mac_table *table, u64 mac)
+{
+ int i;
+ for (i = 0; i < MLX4_MAX_MAC_NUM; i++) {
+ if (mac == (MLX4_MAC_MASK & be64_to_cpu(table->entries[i])))
+ return i;
+ }
+ /* Mac not found */
+ return -EINVAL;
+}
+
+void mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, int qpn)
+{
+ struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
+ struct mlx4_mac_table *table = &info->mac_table;
+ int index = qpn - info->base_qpn;
+ struct mlx4_mac_entry *entry;
+
+ if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER) {
+ entry = radix_tree_lookup(&info->mac_tree, qpn);
+ if (entry) {
+ mlx4_uc_steer_release(dev, port, entry->mac, qpn, 1);
+ radix_tree_delete(&info->mac_tree, qpn);
+ index = find_index(dev, table, entry->mac);
+ kfree(entry);
+ }
+ }
+
+ mutex_lock(&table->mutex);
+
+ if (validate_index(dev, table, index))
+ goto out;
+
+ /* Check whether this address has reference count */
+ if (!(--table->refs[index])) {
+ table->entries[index] = 0;
+ mlx4_set_port_mac_table(dev, port, table->entries);
+ --table->total;
+ }
+out:
+ mutex_unlock(&table->mutex);
+}
+EXPORT_SYMBOL_GPL(mlx4_unregister_mac);
+
+int mlx4_replace_mac(struct mlx4_dev *dev, u8 port, int qpn, u64 new_mac, u8 wrap)
+{
+ struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
+ struct mlx4_mac_table *table = &info->mac_table;
+ int index = qpn - info->base_qpn;
+ struct mlx4_mac_entry *entry;
+ int err;
+
+ if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER) {
+ entry = radix_tree_lookup(&info->mac_tree, qpn);
+ if (!entry)
+ return -EINVAL;
+ index = find_index(dev, table, entry->mac);
+ mlx4_uc_steer_release(dev, port, entry->mac, qpn, 0);
+ entry->mac = new_mac;
+ err = mlx4_uc_steer_add(dev, port, entry->mac, &qpn, 0);
+ if (err || index < 0)
+ return err;
+ }
+
+ mutex_lock(&table->mutex);
+
+ err = validate_index(dev, table, index);
+ if (err)
+ goto out;
+
+ table->entries[index] = cpu_to_be64(new_mac | MLX4_MAC_VALID);
+
+ err = mlx4_set_port_mac_table(dev, port, table->entries);
+ if (unlikely(err)) {
+ mlx4_err(dev, "Failed adding MAC: 0x%llx\n", (unsigned long long) new_mac);
+ table->entries[index] = 0;
+ }
+out:
+ mutex_unlock(&table->mutex);
+ return err;
+}
+EXPORT_SYMBOL_GPL(mlx4_replace_mac);
+static int mlx4_set_port_vlan_table(struct mlx4_dev *dev, u8 port,
+ __be32 *entries)
+{
+ struct mlx4_cmd_mailbox *mailbox;
+ u32 in_mod;
+ int err;
+
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox))
+ return PTR_ERR(mailbox);
+
+ memcpy(mailbox->buf, entries, MLX4_VLAN_TABLE_SIZE);
+ in_mod = MLX4_SET_PORT_VLAN_TABLE << 8 | port;
+ err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT,
+ MLX4_CMD_TIME_CLASS_B);
+
+ mlx4_free_cmd_mailbox(dev, mailbox);
+
+ return err;
+}
+
+int mlx4_find_cached_vlan(struct mlx4_dev *dev, u8 port, u16 vid, int *idx)
+{
+ struct mlx4_vlan_table *table = &mlx4_priv(dev)->port[port].vlan_table;
+ int i;
+
+ for (i = 0; i < MLX4_MAX_VLAN_NUM; ++i) {
+ if (table->refs[i] &&
+ (vid == (MLX4_VLAN_MASK &
+ be32_to_cpu(table->entries[i])))) {
+ /* VLAN already registered, increase reference count */
+ *idx = i;
+ return 0;
+ }
+ }
+
+ return -ENOENT;
+}
+EXPORT_SYMBOL_GPL(mlx4_find_cached_vlan);
+
+int mlx4_register_vlan(struct mlx4_dev *dev, u8 port, u16 vlan, int *index)
+{
+ struct mlx4_vlan_table *table = &mlx4_priv(dev)->port[port].vlan_table;
+ int i, err = 0;
+ int free = -1;
+
+ mutex_lock(&table->mutex);
+ for (i = MLX4_VLAN_REGULAR; i < MLX4_MAX_VLAN_NUM; i++) {
+ if (free < 0 && (table->refs[i] == 0)) {
+ free = i;
+ continue;
+ }
+
+ if (table->refs[i] &&
+ (vlan == (MLX4_VLAN_MASK &
+ be32_to_cpu(table->entries[i])))) {
+ /* Vlan already registered, increase references count */
+ *index = i;
+ ++table->refs[i];
+ goto out;
+ }
+ }
+
+ if (free < 0) {
+ err = -ENOMEM;
+ goto out;
+ }
+
+ if (table->total == table->max) {
+ /* No free vlan entries */
+ err = -ENOSPC;
+ goto out;
+ }
+
+ /* Register new MAC */
+ table->refs[free] = 1;
+ table->entries[free] = cpu_to_be32(vlan | MLX4_VLAN_VALID);
+
+ err = mlx4_set_port_vlan_table(dev, port, table->entries);
+ if (unlikely(err)) {
+ mlx4_warn(dev, "Failed adding vlan: %u\n", vlan);
+ table->refs[free] = 0;
+ table->entries[free] = 0;
+ goto out;
+ }
+
+ *index = free;
+ ++table->total;
+out:
+ mutex_unlock(&table->mutex);
+ return err;
+}
+EXPORT_SYMBOL_GPL(mlx4_register_vlan);
+
+void mlx4_unregister_vlan(struct mlx4_dev *dev, u8 port, int index)
+{
+ struct mlx4_vlan_table *table = &mlx4_priv(dev)->port[port].vlan_table;
+
+ if (index < MLX4_VLAN_REGULAR) {
+ mlx4_warn(dev, "Trying to free special vlan index %d\n", index);
+ return;
+ }
+
+ mutex_lock(&table->mutex);
+ if (!table->refs[index]) {
+ mlx4_warn(dev, "No vlan entry for index %d\n", index);
+ goto out;
+ }
+ if (--table->refs[index]) {
+ mlx4_dbg(dev, "Have more references for index %d,"
+ "no need to modify vlan table\n", index);
+ goto out;
+ }
+ table->entries[index] = 0;
+ mlx4_set_port_vlan_table(dev, port, table->entries);
+ --table->total;
+out:
+ mutex_unlock(&table->mutex);
+}
+EXPORT_SYMBOL_GPL(mlx4_unregister_vlan);
+
+int mlx4_get_port_ib_caps(struct mlx4_dev *dev, u8 port, __be32 *caps)
+{
+ struct mlx4_cmd_mailbox *inmailbox, *outmailbox;
+ u8 *inbuf, *outbuf;
+ int err;
+
+ inmailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(inmailbox))
+ return PTR_ERR(inmailbox);
+
+ outmailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(outmailbox)) {
+ mlx4_free_cmd_mailbox(dev, inmailbox);
+ return PTR_ERR(outmailbox);
+ }
+
+ inbuf = inmailbox->buf;
+ outbuf = outmailbox->buf;
+ memset(inbuf, 0, 256);
+ memset(outbuf, 0, 256);
+ inbuf[0] = 1;
+ inbuf[1] = 1;
+ inbuf[2] = 1;
+ inbuf[3] = 1;
+ *(__be16 *) (&inbuf[16]) = cpu_to_be16(0x0015);
+ *(__be32 *) (&inbuf[20]) = cpu_to_be32(port);
+
+ err = mlx4_cmd_box(dev, inmailbox->dma, outmailbox->dma, port, 3,
+ MLX4_CMD_MAD_IFC, MLX4_CMD_TIME_CLASS_C);
+ if (!err)
+ *caps = *(__be32 *) (outbuf + 84);
+ mlx4_free_cmd_mailbox(dev, inmailbox);
+ mlx4_free_cmd_mailbox(dev, outmailbox);
+ return err;
+}
+
+int mlx4_SET_PORT(struct mlx4_dev *dev, u8 port)
+{
+ struct mlx4_cmd_mailbox *mailbox;
+ int err;
+
+ if (dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH)
+ return 0;
+
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox))
+ return PTR_ERR(mailbox);
+
+ memset(mailbox->buf, 0, 256);
+
+ ((__be32 *) mailbox->buf)[1] = dev->caps.ib_port_def_cap[port];
+ err = mlx4_cmd(dev, mailbox->dma, port, 0, MLX4_CMD_SET_PORT,
+ MLX4_CMD_TIME_CLASS_B);
+
+ mlx4_free_cmd_mailbox(dev, mailbox);
+ return err;
+}
--- /dev/null
+/*
+ * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
+ * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/slab.h>
+
+#include "mlx4.h"
+#include "fw.h"
+
+enum {
+ MLX4_RES_QP,
+ MLX4_RES_RDMARC,
+ MLX4_RES_ALTC,
+ MLX4_RES_AUXC,
+ MLX4_RES_SRQ,
+ MLX4_RES_CQ,
+ MLX4_RES_EQ,
+ MLX4_RES_DMPT,
+ MLX4_RES_CMPT,
+ MLX4_RES_MTT,
+ MLX4_RES_MCG,
+ MLX4_RES_NUM
+};
+
+static const char *res_name[] = {
+ [MLX4_RES_QP] = "QP",
+ [MLX4_RES_RDMARC] = "RDMARC",
+ [MLX4_RES_ALTC] = "ALTC",
+ [MLX4_RES_AUXC] = "AUXC",
+ [MLX4_RES_SRQ] = "SRQ",
+ [MLX4_RES_CQ] = "CQ",
+ [MLX4_RES_EQ] = "EQ",
+ [MLX4_RES_DMPT] = "DMPT",
+ [MLX4_RES_CMPT] = "CMPT",
+ [MLX4_RES_MTT] = "MTT",
+ [MLX4_RES_MCG] = "MCG",
+};
+
+u64 mlx4_make_profile(struct mlx4_dev *dev,
+ struct mlx4_profile *request,
+ struct mlx4_dev_cap *dev_cap,
+ struct mlx4_init_hca_param *init_hca)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ struct mlx4_resource {
+ u64 size;
+ u64 start;
+ int type;
+ int num;
+ int log_num;
+ };
+
+ u64 total_size = 0;
+ struct mlx4_resource *profile;
+ struct mlx4_resource tmp;
+ int i, j;
+
+ profile = kcalloc(MLX4_RES_NUM, sizeof(*profile), GFP_KERNEL);
+ if (!profile)
+ return -ENOMEM;
+
+ profile[MLX4_RES_QP].size = dev_cap->qpc_entry_sz;
+ profile[MLX4_RES_RDMARC].size = dev_cap->rdmarc_entry_sz;
+ profile[MLX4_RES_ALTC].size = dev_cap->altc_entry_sz;
+ profile[MLX4_RES_AUXC].size = dev_cap->aux_entry_sz;
+ profile[MLX4_RES_SRQ].size = dev_cap->srq_entry_sz;
+ profile[MLX4_RES_CQ].size = dev_cap->cqc_entry_sz;
+ profile[MLX4_RES_EQ].size = dev_cap->eqc_entry_sz;
+ profile[MLX4_RES_DMPT].size = dev_cap->dmpt_entry_sz;
+ profile[MLX4_RES_CMPT].size = dev_cap->cmpt_entry_sz;
+ profile[MLX4_RES_MTT].size = dev->caps.mtts_per_seg * dev_cap->mtt_entry_sz;
+ profile[MLX4_RES_MCG].size = MLX4_MGM_ENTRY_SIZE;
+
+ profile[MLX4_RES_QP].num = request->num_qp;
+ profile[MLX4_RES_RDMARC].num = request->num_qp * request->rdmarc_per_qp;
+ profile[MLX4_RES_ALTC].num = request->num_qp;
+ profile[MLX4_RES_AUXC].num = request->num_qp;
+ profile[MLX4_RES_SRQ].num = request->num_srq;
+ profile[MLX4_RES_CQ].num = request->num_cq;
+ profile[MLX4_RES_EQ].num = min_t(unsigned, dev_cap->max_eqs, MAX_MSIX);
+ profile[MLX4_RES_DMPT].num = request->num_mpt;
+ profile[MLX4_RES_CMPT].num = MLX4_NUM_CMPTS;
+ profile[MLX4_RES_MTT].num = request->num_mtt;
+ profile[MLX4_RES_MCG].num = request->num_mcg;
+
+ for (i = 0; i < MLX4_RES_NUM; ++i) {
+ profile[i].type = i;
+ profile[i].num = roundup_pow_of_two(profile[i].num);
+ profile[i].log_num = ilog2(profile[i].num);
+ profile[i].size *= profile[i].num;
+ profile[i].size = max(profile[i].size, (u64) PAGE_SIZE);
+ }
+
+ /*
+ * Sort the resources in decreasing order of size. Since they
+ * all have sizes that are powers of 2, we'll be able to keep
+ * resources aligned to their size and pack them without gaps
+ * using the sorted order.
+ */
+ for (i = MLX4_RES_NUM; i > 0; --i)
+ for (j = 1; j < i; ++j) {
+ if (profile[j].size > profile[j - 1].size) {
+ tmp = profile[j];
+ profile[j] = profile[j - 1];
+ profile[j - 1] = tmp;
+ }
+ }
+
+ for (i = 0; i < MLX4_RES_NUM; ++i) {
+ if (profile[i].size) {
+ profile[i].start = total_size;
+ total_size += profile[i].size;
+ }
+
+ if (total_size > dev_cap->max_icm_sz) {
+ mlx4_err(dev, "Profile requires 0x%llx bytes; "
+ "won't fit in 0x%llx bytes of context memory.\n",
+ (unsigned long long) total_size,
+ (unsigned long long) dev_cap->max_icm_sz);
+ kfree(profile);
+ return -ENOMEM;
+ }
+
+ if (profile[i].size)
+ mlx4_dbg(dev, " profile[%2d] (%6s): 2^%02d entries @ 0x%10llx, "
+ "size 0x%10llx\n",
+ i, res_name[profile[i].type], profile[i].log_num,
+ (unsigned long long) profile[i].start,
+ (unsigned long long) profile[i].size);
+ }
+
+ mlx4_dbg(dev, "HCA context memory: reserving %d KB\n",
+ (int) (total_size >> 10));
+
+ for (i = 0; i < MLX4_RES_NUM; ++i) {
+ switch (profile[i].type) {
+ case MLX4_RES_QP:
+ dev->caps.num_qps = profile[i].num;
+ init_hca->qpc_base = profile[i].start;
+ init_hca->log_num_qps = profile[i].log_num;
+ break;
+ case MLX4_RES_RDMARC:
+ for (priv->qp_table.rdmarc_shift = 0;
+ request->num_qp << priv->qp_table.rdmarc_shift < profile[i].num;
+ ++priv->qp_table.rdmarc_shift)
+ ; /* nothing */
+ dev->caps.max_qp_dest_rdma = 1 << priv->qp_table.rdmarc_shift;
+ priv->qp_table.rdmarc_base = (u32) profile[i].start;
+ init_hca->rdmarc_base = profile[i].start;
+ init_hca->log_rd_per_qp = priv->qp_table.rdmarc_shift;
+ break;
+ case MLX4_RES_ALTC:
+ init_hca->altc_base = profile[i].start;
+ break;
+ case MLX4_RES_AUXC:
+ init_hca->auxc_base = profile[i].start;
+ break;
+ case MLX4_RES_SRQ:
+ dev->caps.num_srqs = profile[i].num;
+ init_hca->srqc_base = profile[i].start;
+ init_hca->log_num_srqs = profile[i].log_num;
+ break;
+ case MLX4_RES_CQ:
+ dev->caps.num_cqs = profile[i].num;
+ init_hca->cqc_base = profile[i].start;
+ init_hca->log_num_cqs = profile[i].log_num;
+ break;
+ case MLX4_RES_EQ:
+ dev->caps.num_eqs = profile[i].num;
+ init_hca->eqc_base = profile[i].start;
+ init_hca->log_num_eqs = profile[i].log_num;
+ break;
+ case MLX4_RES_DMPT:
+ dev->caps.num_mpts = profile[i].num;
+ priv->mr_table.mpt_base = profile[i].start;
+ init_hca->dmpt_base = profile[i].start;
+ init_hca->log_mpt_sz = profile[i].log_num;
+ break;
+ case MLX4_RES_CMPT:
+ init_hca->cmpt_base = profile[i].start;
+ break;
+ case MLX4_RES_MTT:
+ dev->caps.num_mtt_segs = profile[i].num;
+ priv->mr_table.mtt_base = profile[i].start;
+ init_hca->mtt_base = profile[i].start;
+ break;
+ case MLX4_RES_MCG:
+ dev->caps.num_mgms = profile[i].num >> 1;
+ dev->caps.num_amgms = profile[i].num >> 1;
+ init_hca->mc_base = profile[i].start;
+ init_hca->log_mc_entry_sz = ilog2(MLX4_MGM_ENTRY_SIZE);
+ init_hca->log_mc_table_sz = profile[i].log_num;
+ init_hca->log_mc_hash_sz = profile[i].log_num - 1;
+ break;
+ default:
+ break;
+ }
+ }
+
+ /*
+ * PDs don't take any HCA memory, but we assign them as part
+ * of the HCA profile anyway.
+ */
+ dev->caps.num_pds = MLX4_NUM_PDS;
+
+ kfree(profile);
+ return total_size;
+}
--- /dev/null
+/*
+ * Copyright (c) 2004 Topspin Communications. All rights reserved.
+ * Copyright (c) 2005, 2006, 2007 Cisco Systems, Inc. All rights reserved.
+ * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2004 Voltaire, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/gfp.h>
+#include <linux/mlx4/cmd.h>
+#include <linux/mlx4/qp.h>
+
+#include "mlx4.h"
+#include "icm.h"
+
+void mlx4_qp_event(struct mlx4_dev *dev, u32 qpn, int event_type)
+{
+ struct mlx4_qp_table *qp_table = &mlx4_priv(dev)->qp_table;
+ struct mlx4_qp *qp;
+
+ spin_lock(&qp_table->lock);
+
+ qp = __mlx4_qp_lookup(dev, qpn);
+ if (qp)
+ atomic_inc(&qp->refcount);
+
+ spin_unlock(&qp_table->lock);
+
+ if (!qp) {
+ mlx4_warn(dev, "Async event for bogus QP %08x\n", qpn);
+ return;
+ }
+
+ qp->event(qp, event_type);
+
+ if (atomic_dec_and_test(&qp->refcount))
+ complete(&qp->free);
+}
+
+int mlx4_qp_modify(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
+ enum mlx4_qp_state cur_state, enum mlx4_qp_state new_state,
+ struct mlx4_qp_context *context, enum mlx4_qp_optpar optpar,
+ int sqd_event, struct mlx4_qp *qp)
+{
+ static const u16 op[MLX4_QP_NUM_STATE][MLX4_QP_NUM_STATE] = {
+ [MLX4_QP_STATE_RST] = {
+ [MLX4_QP_STATE_RST] = MLX4_CMD_2RST_QP,
+ [MLX4_QP_STATE_ERR] = MLX4_CMD_2ERR_QP,
+ [MLX4_QP_STATE_INIT] = MLX4_CMD_RST2INIT_QP,
+ },
+ [MLX4_QP_STATE_INIT] = {
+ [MLX4_QP_STATE_RST] = MLX4_CMD_2RST_QP,
+ [MLX4_QP_STATE_ERR] = MLX4_CMD_2ERR_QP,
+ [MLX4_QP_STATE_INIT] = MLX4_CMD_INIT2INIT_QP,
+ [MLX4_QP_STATE_RTR] = MLX4_CMD_INIT2RTR_QP,
+ },
+ [MLX4_QP_STATE_RTR] = {
+ [MLX4_QP_STATE_RST] = MLX4_CMD_2RST_QP,
+ [MLX4_QP_STATE_ERR] = MLX4_CMD_2ERR_QP,
+ [MLX4_QP_STATE_RTS] = MLX4_CMD_RTR2RTS_QP,
+ },
+ [MLX4_QP_STATE_RTS] = {
+ [MLX4_QP_STATE_RST] = MLX4_CMD_2RST_QP,
+ [MLX4_QP_STATE_ERR] = MLX4_CMD_2ERR_QP,
+ [MLX4_QP_STATE_RTS] = MLX4_CMD_RTS2RTS_QP,
+ [MLX4_QP_STATE_SQD] = MLX4_CMD_RTS2SQD_QP,
+ },
+ [MLX4_QP_STATE_SQD] = {
+ [MLX4_QP_STATE_RST] = MLX4_CMD_2RST_QP,
+ [MLX4_QP_STATE_ERR] = MLX4_CMD_2ERR_QP,
+ [MLX4_QP_STATE_RTS] = MLX4_CMD_SQD2RTS_QP,
+ [MLX4_QP_STATE_SQD] = MLX4_CMD_SQD2SQD_QP,
+ },
+ [MLX4_QP_STATE_SQER] = {
+ [MLX4_QP_STATE_RST] = MLX4_CMD_2RST_QP,
+ [MLX4_QP_STATE_ERR] = MLX4_CMD_2ERR_QP,
+ [MLX4_QP_STATE_RTS] = MLX4_CMD_SQERR2RTS_QP,
+ },
+ [MLX4_QP_STATE_ERR] = {
+ [MLX4_QP_STATE_RST] = MLX4_CMD_2RST_QP,
+ [MLX4_QP_STATE_ERR] = MLX4_CMD_2ERR_QP,
+ }
+ };
+
+ struct mlx4_cmd_mailbox *mailbox;
+ int ret = 0;
+
+ if (cur_state >= MLX4_QP_NUM_STATE || new_state >= MLX4_QP_NUM_STATE ||
+ !op[cur_state][new_state])
+ return -EINVAL;
+
+ if (op[cur_state][new_state] == MLX4_CMD_2RST_QP)
+ return mlx4_cmd(dev, 0, qp->qpn, 2,
+ MLX4_CMD_2RST_QP, MLX4_CMD_TIME_CLASS_A);
+
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox))
+ return PTR_ERR(mailbox);
+
+ if (cur_state == MLX4_QP_STATE_RST && new_state == MLX4_QP_STATE_INIT) {
+ u64 mtt_addr = mlx4_mtt_addr(dev, mtt);
+ context->mtt_base_addr_h = mtt_addr >> 32;
+ context->mtt_base_addr_l = cpu_to_be32(mtt_addr & 0xffffffff);
+ context->log_page_size = mtt->page_shift - MLX4_ICM_PAGE_SHIFT;
+ }
+
+ *(__be32 *) mailbox->buf = cpu_to_be32(optpar);
+ memcpy(mailbox->buf + 8, context, sizeof *context);
+
+ ((struct mlx4_qp_context *) (mailbox->buf + 8))->local_qpn =
+ cpu_to_be32(qp->qpn);
+
+ ret = mlx4_cmd(dev, mailbox->dma, qp->qpn | (!!sqd_event << 31),
+ new_state == MLX4_QP_STATE_RST ? 2 : 0,
+ op[cur_state][new_state], MLX4_CMD_TIME_CLASS_C);
+
+ mlx4_free_cmd_mailbox(dev, mailbox);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(mlx4_qp_modify);
+
+int mlx4_qp_reserve_range(struct mlx4_dev *dev, int cnt, int align, int *base)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ struct mlx4_qp_table *qp_table = &priv->qp_table;
+ int qpn;
+
+ qpn = mlx4_bitmap_alloc_range(&qp_table->bitmap, cnt, align);
+ if (qpn == -1)
+ return -ENOMEM;
+
+ *base = qpn;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mlx4_qp_reserve_range);
+
+void mlx4_qp_release_range(struct mlx4_dev *dev, int base_qpn, int cnt)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ struct mlx4_qp_table *qp_table = &priv->qp_table;
+ if (base_qpn < dev->caps.sqp_start + 8)
+ return;
+
+ mlx4_bitmap_free_range(&qp_table->bitmap, base_qpn, cnt);
+}
+EXPORT_SYMBOL_GPL(mlx4_qp_release_range);
+
+int mlx4_qp_alloc(struct mlx4_dev *dev, int qpn, struct mlx4_qp *qp)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ struct mlx4_qp_table *qp_table = &priv->qp_table;
+ int err;
+
+ if (!qpn)
+ return -EINVAL;
+
+ qp->qpn = qpn;
+
+ err = mlx4_table_get(dev, &qp_table->qp_table, qp->qpn);
+ if (err)
+ goto err_out;
+
+ err = mlx4_table_get(dev, &qp_table->auxc_table, qp->qpn);
+ if (err)
+ goto err_put_qp;
+
+ err = mlx4_table_get(dev, &qp_table->altc_table, qp->qpn);
+ if (err)
+ goto err_put_auxc;
+
+ err = mlx4_table_get(dev, &qp_table->rdmarc_table, qp->qpn);
+ if (err)
+ goto err_put_altc;
+
+ err = mlx4_table_get(dev, &qp_table->cmpt_table, qp->qpn);
+ if (err)
+ goto err_put_rdmarc;
+
+ spin_lock_irq(&qp_table->lock);
+ err = radix_tree_insert(&dev->qp_table_tree, qp->qpn & (dev->caps.num_qps - 1), qp);
+ spin_unlock_irq(&qp_table->lock);
+ if (err)
+ goto err_put_cmpt;
+
+ atomic_set(&qp->refcount, 1);
+ init_completion(&qp->free);
+
+ return 0;
+
+err_put_cmpt:
+ mlx4_table_put(dev, &qp_table->cmpt_table, qp->qpn);
+
+err_put_rdmarc:
+ mlx4_table_put(dev, &qp_table->rdmarc_table, qp->qpn);
+
+err_put_altc:
+ mlx4_table_put(dev, &qp_table->altc_table, qp->qpn);
+
+err_put_auxc:
+ mlx4_table_put(dev, &qp_table->auxc_table, qp->qpn);
+
+err_put_qp:
+ mlx4_table_put(dev, &qp_table->qp_table, qp->qpn);
+
+err_out:
+ return err;
+}
+EXPORT_SYMBOL_GPL(mlx4_qp_alloc);
+
+void mlx4_qp_remove(struct mlx4_dev *dev, struct mlx4_qp *qp)
+{
+ struct mlx4_qp_table *qp_table = &mlx4_priv(dev)->qp_table;
+ unsigned long flags;
+
+ spin_lock_irqsave(&qp_table->lock, flags);
+ radix_tree_delete(&dev->qp_table_tree, qp->qpn & (dev->caps.num_qps - 1));
+ spin_unlock_irqrestore(&qp_table->lock, flags);
+}
+EXPORT_SYMBOL_GPL(mlx4_qp_remove);
+
+void mlx4_qp_free(struct mlx4_dev *dev, struct mlx4_qp *qp)
+{
+ struct mlx4_qp_table *qp_table = &mlx4_priv(dev)->qp_table;
+
+ if (atomic_dec_and_test(&qp->refcount))
+ complete(&qp->free);
+ wait_for_completion(&qp->free);
+
+ mlx4_table_put(dev, &qp_table->cmpt_table, qp->qpn);
+ mlx4_table_put(dev, &qp_table->rdmarc_table, qp->qpn);
+ mlx4_table_put(dev, &qp_table->altc_table, qp->qpn);
+ mlx4_table_put(dev, &qp_table->auxc_table, qp->qpn);
+ mlx4_table_put(dev, &qp_table->qp_table, qp->qpn);
+}
+EXPORT_SYMBOL_GPL(mlx4_qp_free);
+
+static int mlx4_CONF_SPECIAL_QP(struct mlx4_dev *dev, u32 base_qpn)
+{
+ return mlx4_cmd(dev, 0, base_qpn, 0, MLX4_CMD_CONF_SPECIAL_QP,
+ MLX4_CMD_TIME_CLASS_B);
+}
+
+int mlx4_init_qp_table(struct mlx4_dev *dev)
+{
+ struct mlx4_qp_table *qp_table = &mlx4_priv(dev)->qp_table;
+ int err;
+ int reserved_from_top = 0;
+
+ spin_lock_init(&qp_table->lock);
+ INIT_RADIX_TREE(&dev->qp_table_tree, GFP_ATOMIC);
+
+ /*
+ * We reserve 2 extra QPs per port for the special QPs. The
+ * block of special QPs must be aligned to a multiple of 8, so
+ * round up.
+ */
+ dev->caps.sqp_start =
+ ALIGN(dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW], 8);
+
+ {
+ int sort[MLX4_NUM_QP_REGION];
+ int i, j, tmp;
+ int last_base = dev->caps.num_qps;
+
+ for (i = 1; i < MLX4_NUM_QP_REGION; ++i)
+ sort[i] = i;
+
+ for (i = MLX4_NUM_QP_REGION; i > 0; --i) {
+ for (j = 2; j < i; ++j) {
+ if (dev->caps.reserved_qps_cnt[sort[j]] >
+ dev->caps.reserved_qps_cnt[sort[j - 1]]) {
+ tmp = sort[j];
+ sort[j] = sort[j - 1];
+ sort[j - 1] = tmp;
+ }
+ }
+ }
+
+ for (i = 1; i < MLX4_NUM_QP_REGION; ++i) {
+ last_base -= dev->caps.reserved_qps_cnt[sort[i]];
+ dev->caps.reserved_qps_base[sort[i]] = last_base;
+ reserved_from_top +=
+ dev->caps.reserved_qps_cnt[sort[i]];
+ }
+
+ }
+
+ err = mlx4_bitmap_init(&qp_table->bitmap, dev->caps.num_qps,
+ (1 << 23) - 1, dev->caps.sqp_start + 8,
+ reserved_from_top);
+ if (err)
+ return err;
+
+ return mlx4_CONF_SPECIAL_QP(dev, dev->caps.sqp_start);
+}
+
+void mlx4_cleanup_qp_table(struct mlx4_dev *dev)
+{
+ mlx4_CONF_SPECIAL_QP(dev, 0);
+ mlx4_bitmap_cleanup(&mlx4_priv(dev)->qp_table.bitmap);
+}
+
+int mlx4_qp_query(struct mlx4_dev *dev, struct mlx4_qp *qp,
+ struct mlx4_qp_context *context)
+{
+ struct mlx4_cmd_mailbox *mailbox;
+ int err;
+
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox))
+ return PTR_ERR(mailbox);
+
+ err = mlx4_cmd_box(dev, 0, mailbox->dma, qp->qpn, 0,
+ MLX4_CMD_QUERY_QP, MLX4_CMD_TIME_CLASS_A);
+ if (!err)
+ memcpy(context, mailbox->buf + 8, sizeof *context);
+
+ mlx4_free_cmd_mailbox(dev, mailbox);
+ return err;
+}
+EXPORT_SYMBOL_GPL(mlx4_qp_query);
+
+int mlx4_qp_to_ready(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
+ struct mlx4_qp_context *context,
+ struct mlx4_qp *qp, enum mlx4_qp_state *qp_state)
+{
+ int err;
+ int i;
+ enum mlx4_qp_state states[] = {
+ MLX4_QP_STATE_RST,
+ MLX4_QP_STATE_INIT,
+ MLX4_QP_STATE_RTR,
+ MLX4_QP_STATE_RTS
+ };
+
+ for (i = 0; i < ARRAY_SIZE(states) - 1; i++) {
+ context->flags &= cpu_to_be32(~(0xf << 28));
+ context->flags |= cpu_to_be32(states[i + 1] << 28);
+ err = mlx4_qp_modify(dev, mtt, states[i], states[i + 1],
+ context, 0, 0, qp);
+ if (err) {
+ mlx4_err(dev, "Failed to bring QP to state: "
+ "%d with error: %d\n",
+ states[i + 1], err);
+ return err;
+ }
+
+ *qp_state = states[i + 1];
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mlx4_qp_to_ready);
--- /dev/null
+/*
+ * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
+ * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/errno.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+
+#include "mlx4.h"
+
+int mlx4_reset(struct mlx4_dev *dev)
+{
+ void __iomem *reset;
+ u32 *hca_header = NULL;
+ int pcie_cap;
+ u16 devctl;
+ u16 linkctl;
+ u16 vendor;
+ unsigned long end;
+ u32 sem;
+ int i;
+ int err = 0;
+
+#define MLX4_RESET_BASE 0xf0000
+#define MLX4_RESET_SIZE 0x400
+#define MLX4_SEM_OFFSET 0x3fc
+#define MLX4_RESET_OFFSET 0x10
+#define MLX4_RESET_VALUE swab32(1)
+
+#define MLX4_SEM_TIMEOUT_JIFFIES (10 * HZ)
+#define MLX4_RESET_TIMEOUT_JIFFIES (2 * HZ)
+
+ /*
+ * Reset the chip. This is somewhat ugly because we have to
+ * save off the PCI header before reset and then restore it
+ * after the chip reboots. We skip config space offsets 22
+ * and 23 since those have a special meaning.
+ */
+
+ /* Do we need to save off the full 4K PCI Express header?? */
+ hca_header = kmalloc(256, GFP_KERNEL);
+ if (!hca_header) {
+ err = -ENOMEM;
+ mlx4_err(dev, "Couldn't allocate memory to save HCA "
+ "PCI header, aborting.\n");
+ goto out;
+ }
+
+ pcie_cap = pci_pcie_cap(dev->pdev);
+
+ for (i = 0; i < 64; ++i) {
+ if (i == 22 || i == 23)
+ continue;
+ if (pci_read_config_dword(dev->pdev, i * 4, hca_header + i)) {
+ err = -ENODEV;
+ mlx4_err(dev, "Couldn't save HCA "
+ "PCI header, aborting.\n");
+ goto out;
+ }
+ }
+
+ reset = ioremap(pci_resource_start(dev->pdev, 0) + MLX4_RESET_BASE,
+ MLX4_RESET_SIZE);
+ if (!reset) {
+ err = -ENOMEM;
+ mlx4_err(dev, "Couldn't map HCA reset register, aborting.\n");
+ goto out;
+ }
+
+ /* grab HW semaphore to lock out flash updates */
+ end = jiffies + MLX4_SEM_TIMEOUT_JIFFIES;
+ do {
+ sem = readl(reset + MLX4_SEM_OFFSET);
+ if (!sem)
+ break;
+
+ msleep(1);
+ } while (time_before(jiffies, end));
+
+ if (sem) {
+ mlx4_err(dev, "Failed to obtain HW semaphore, aborting\n");
+ err = -EAGAIN;
+ iounmap(reset);
+ goto out;
+ }
+
+ /* actually hit reset */
+ writel(MLX4_RESET_VALUE, reset + MLX4_RESET_OFFSET);
+ iounmap(reset);
+
+ /* Docs say to wait one second before accessing device */
+ msleep(1000);
+
+ end = jiffies + MLX4_RESET_TIMEOUT_JIFFIES;
+ do {
+ if (!pci_read_config_word(dev->pdev, PCI_VENDOR_ID, &vendor) &&
+ vendor != 0xffff)
+ break;
+
+ msleep(1);
+ } while (time_before(jiffies, end));
+
+ if (vendor == 0xffff) {
+ err = -ENODEV;
+ mlx4_err(dev, "PCI device did not come back after reset, "
+ "aborting.\n");
+ goto out;
+ }
+
+ /* Now restore the PCI headers */
+ if (pcie_cap) {
+ devctl = hca_header[(pcie_cap + PCI_EXP_DEVCTL) / 4];
+ if (pci_write_config_word(dev->pdev, pcie_cap + PCI_EXP_DEVCTL,
+ devctl)) {
+ err = -ENODEV;
+ mlx4_err(dev, "Couldn't restore HCA PCI Express "
+ "Device Control register, aborting.\n");
+ goto out;
+ }
+ linkctl = hca_header[(pcie_cap + PCI_EXP_LNKCTL) / 4];
+ if (pci_write_config_word(dev->pdev, pcie_cap + PCI_EXP_LNKCTL,
+ linkctl)) {
+ err = -ENODEV;
+ mlx4_err(dev, "Couldn't restore HCA PCI Express "
+ "Link control register, aborting.\n");
+ goto out;
+ }
+ }
+
+ for (i = 0; i < 16; ++i) {
+ if (i * 4 == PCI_COMMAND)
+ continue;
+
+ if (pci_write_config_dword(dev->pdev, i * 4, hca_header[i])) {
+ err = -ENODEV;
+ mlx4_err(dev, "Couldn't restore HCA reg %x, "
+ "aborting.\n", i);
+ goto out;
+ }
+ }
+
+ if (pci_write_config_dword(dev->pdev, PCI_COMMAND,
+ hca_header[PCI_COMMAND / 4])) {
+ err = -ENODEV;
+ mlx4_err(dev, "Couldn't restore HCA COMMAND, "
+ "aborting.\n");
+ goto out;
+ }
+
+out:
+ kfree(hca_header);
+
+ return err;
+}
--- /dev/null
+/*
+ * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#include <linux/errno.h>
+#include <linux/if_ether.h>
+
+#include <linux/mlx4/cmd.h>
+
+#include "mlx4.h"
+
+int mlx4_SENSE_PORT(struct mlx4_dev *dev, int port,
+ enum mlx4_port_type *type)
+{
+ u64 out_param;
+ int err = 0;
+
+ err = mlx4_cmd_imm(dev, 0, &out_param, port, 0,
+ MLX4_CMD_SENSE_PORT, MLX4_CMD_TIME_CLASS_B);
+ if (err) {
+ mlx4_err(dev, "Sense command failed for port: %d\n", port);
+ return err;
+ }
+
+ if (out_param > 2) {
+ mlx4_err(dev, "Sense returned illegal value: 0x%llx\n", out_param);
+ return -EINVAL;
+ }
+
+ *type = out_param;
+ return 0;
+}
+
+void mlx4_do_sense_ports(struct mlx4_dev *dev,
+ enum mlx4_port_type *stype,
+ enum mlx4_port_type *defaults)
+{
+ struct mlx4_sense *sense = &mlx4_priv(dev)->sense;
+ int err;
+ int i;
+
+ for (i = 1; i <= dev->caps.num_ports; i++) {
+ stype[i - 1] = 0;
+ if (sense->do_sense_port[i] && sense->sense_allowed[i] &&
+ dev->caps.possible_type[i] == MLX4_PORT_TYPE_AUTO) {
+ err = mlx4_SENSE_PORT(dev, i, &stype[i - 1]);
+ if (err)
+ stype[i - 1] = defaults[i - 1];
+ } else
+ stype[i - 1] = defaults[i - 1];
+ }
+
+ /*
+ * Adjust port configuration:
+ * If port 1 sensed nothing and port 2 is IB, set both as IB
+ * If port 2 sensed nothing and port 1 is Eth, set both as Eth
+ */
+ if (stype[0] == MLX4_PORT_TYPE_ETH) {
+ for (i = 1; i < dev->caps.num_ports; i++)
+ stype[i] = stype[i] ? stype[i] : MLX4_PORT_TYPE_ETH;
+ }
+ if (stype[dev->caps.num_ports - 1] == MLX4_PORT_TYPE_IB) {
+ for (i = 0; i < dev->caps.num_ports - 1; i++)
+ stype[i] = stype[i] ? stype[i] : MLX4_PORT_TYPE_IB;
+ }
+
+ /*
+ * If sensed nothing, remain in current configuration.
+ */
+ for (i = 0; i < dev->caps.num_ports; i++)
+ stype[i] = stype[i] ? stype[i] : defaults[i];
+
+}
+
+static void mlx4_sense_port(struct work_struct *work)
+{
+ struct delayed_work *delay = to_delayed_work(work);
+ struct mlx4_sense *sense = container_of(delay, struct mlx4_sense,
+ sense_poll);
+ struct mlx4_dev *dev = sense->dev;
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ enum mlx4_port_type stype[MLX4_MAX_PORTS];
+
+ mutex_lock(&priv->port_mutex);
+ mlx4_do_sense_ports(dev, stype, &dev->caps.port_type[1]);
+
+ if (mlx4_check_port_params(dev, stype))
+ goto sense_again;
+
+ if (mlx4_change_port_types(dev, stype))
+ mlx4_err(dev, "Failed to change port_types\n");
+
+sense_again:
+ mutex_unlock(&priv->port_mutex);
+ queue_delayed_work(mlx4_wq , &sense->sense_poll,
+ round_jiffies_relative(MLX4_SENSE_RANGE));
+}
+
+void mlx4_start_sense(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ struct mlx4_sense *sense = &priv->sense;
+
+ if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP))
+ return;
+
+ queue_delayed_work(mlx4_wq , &sense->sense_poll,
+ round_jiffies_relative(MLX4_SENSE_RANGE));
+}
+
+void mlx4_stop_sense(struct mlx4_dev *dev)
+{
+ cancel_delayed_work_sync(&mlx4_priv(dev)->sense.sense_poll);
+}
+
+void mlx4_sense_init(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ struct mlx4_sense *sense = &priv->sense;
+ int port;
+
+ sense->dev = dev;
+ for (port = 1; port <= dev->caps.num_ports; port++)
+ sense->do_sense_port[port] = 1;
+
+ INIT_DELAYED_WORK_DEFERRABLE(&sense->sense_poll, mlx4_sense_port);
+}
--- /dev/null
+/*
+ * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
+ * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/mlx4/cmd.h>
+#include <linux/gfp.h>
+
+#include "mlx4.h"
+#include "icm.h"
+
+struct mlx4_srq_context {
+ __be32 state_logsize_srqn;
+ u8 logstride;
+ u8 reserved1[3];
+ u8 pg_offset;
+ u8 reserved2[3];
+ u32 reserved3;
+ u8 log_page_size;
+ u8 reserved4[2];
+ u8 mtt_base_addr_h;
+ __be32 mtt_base_addr_l;
+ __be32 pd;
+ __be16 limit_watermark;
+ __be16 wqe_cnt;
+ u16 reserved5;
+ __be16 wqe_counter;
+ u32 reserved6;
+ __be64 db_rec_addr;
+};
+
+void mlx4_srq_event(struct mlx4_dev *dev, u32 srqn, int event_type)
+{
+ struct mlx4_srq_table *srq_table = &mlx4_priv(dev)->srq_table;
+ struct mlx4_srq *srq;
+
+ spin_lock(&srq_table->lock);
+
+ srq = radix_tree_lookup(&srq_table->tree, srqn & (dev->caps.num_srqs - 1));
+ if (srq)
+ atomic_inc(&srq->refcount);
+
+ spin_unlock(&srq_table->lock);
+
+ if (!srq) {
+ mlx4_warn(dev, "Async event for bogus SRQ %08x\n", srqn);
+ return;
+ }
+
+ srq->event(srq, event_type);
+
+ if (atomic_dec_and_test(&srq->refcount))
+ complete(&srq->free);
+}
+
+static int mlx4_SW2HW_SRQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
+ int srq_num)
+{
+ return mlx4_cmd(dev, mailbox->dma, srq_num, 0, MLX4_CMD_SW2HW_SRQ,
+ MLX4_CMD_TIME_CLASS_A);
+}
+
+static int mlx4_HW2SW_SRQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
+ int srq_num)
+{
+ return mlx4_cmd_box(dev, 0, mailbox ? mailbox->dma : 0, srq_num,
+ mailbox ? 0 : 1, MLX4_CMD_HW2SW_SRQ,
+ MLX4_CMD_TIME_CLASS_A);
+}
+
+static int mlx4_ARM_SRQ(struct mlx4_dev *dev, int srq_num, int limit_watermark)
+{
+ return mlx4_cmd(dev, limit_watermark, srq_num, 0, MLX4_CMD_ARM_SRQ,
+ MLX4_CMD_TIME_CLASS_B);
+}
+
+static int mlx4_QUERY_SRQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
+ int srq_num)
+{
+ return mlx4_cmd_box(dev, 0, mailbox->dma, srq_num, 0, MLX4_CMD_QUERY_SRQ,
+ MLX4_CMD_TIME_CLASS_A);
+}
+
+int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, struct mlx4_mtt *mtt,
+ u64 db_rec, struct mlx4_srq *srq)
+{
+ struct mlx4_srq_table *srq_table = &mlx4_priv(dev)->srq_table;
+ struct mlx4_cmd_mailbox *mailbox;
+ struct mlx4_srq_context *srq_context;
+ u64 mtt_addr;
+ int err;
+
+ srq->srqn = mlx4_bitmap_alloc(&srq_table->bitmap);
+ if (srq->srqn == -1)
+ return -ENOMEM;
+
+ err = mlx4_table_get(dev, &srq_table->table, srq->srqn);
+ if (err)
+ goto err_out;
+
+ err = mlx4_table_get(dev, &srq_table->cmpt_table, srq->srqn);
+ if (err)
+ goto err_put;
+
+ spin_lock_irq(&srq_table->lock);
+ err = radix_tree_insert(&srq_table->tree, srq->srqn, srq);
+ spin_unlock_irq(&srq_table->lock);
+ if (err)
+ goto err_cmpt_put;
+
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox)) {
+ err = PTR_ERR(mailbox);
+ goto err_radix;
+ }
+
+ srq_context = mailbox->buf;
+ memset(srq_context, 0, sizeof *srq_context);
+
+ srq_context->state_logsize_srqn = cpu_to_be32((ilog2(srq->max) << 24) |
+ srq->srqn);
+ srq_context->logstride = srq->wqe_shift - 4;
+ srq_context->log_page_size = mtt->page_shift - MLX4_ICM_PAGE_SHIFT;
+
+ mtt_addr = mlx4_mtt_addr(dev, mtt);
+ srq_context->mtt_base_addr_h = mtt_addr >> 32;
+ srq_context->mtt_base_addr_l = cpu_to_be32(mtt_addr & 0xffffffff);
+ srq_context->pd = cpu_to_be32(pdn);
+ srq_context->db_rec_addr = cpu_to_be64(db_rec);
+
+ err = mlx4_SW2HW_SRQ(dev, mailbox, srq->srqn);
+ mlx4_free_cmd_mailbox(dev, mailbox);
+ if (err)
+ goto err_radix;
+
+ atomic_set(&srq->refcount, 1);
+ init_completion(&srq->free);
+
+ return 0;
+
+err_radix:
+ spin_lock_irq(&srq_table->lock);
+ radix_tree_delete(&srq_table->tree, srq->srqn);
+ spin_unlock_irq(&srq_table->lock);
+
+err_cmpt_put:
+ mlx4_table_put(dev, &srq_table->cmpt_table, srq->srqn);
+
+err_put:
+ mlx4_table_put(dev, &srq_table->table, srq->srqn);
+
+err_out:
+ mlx4_bitmap_free(&srq_table->bitmap, srq->srqn);
+
+ return err;
+}
+EXPORT_SYMBOL_GPL(mlx4_srq_alloc);
+
+void mlx4_srq_free(struct mlx4_dev *dev, struct mlx4_srq *srq)
+{
+ struct mlx4_srq_table *srq_table = &mlx4_priv(dev)->srq_table;
+ int err;
+
+ err = mlx4_HW2SW_SRQ(dev, NULL, srq->srqn);
+ if (err)
+ mlx4_warn(dev, "HW2SW_SRQ failed (%d) for SRQN %06x\n", err, srq->srqn);
+
+ spin_lock_irq(&srq_table->lock);
+ radix_tree_delete(&srq_table->tree, srq->srqn);
+ spin_unlock_irq(&srq_table->lock);
+
+ if (atomic_dec_and_test(&srq->refcount))
+ complete(&srq->free);
+ wait_for_completion(&srq->free);
+
+ mlx4_table_put(dev, &srq_table->table, srq->srqn);
+ mlx4_bitmap_free(&srq_table->bitmap, srq->srqn);
+}
+EXPORT_SYMBOL_GPL(mlx4_srq_free);
+
+int mlx4_srq_arm(struct mlx4_dev *dev, struct mlx4_srq *srq, int limit_watermark)
+{
+ return mlx4_ARM_SRQ(dev, srq->srqn, limit_watermark);
+}
+EXPORT_SYMBOL_GPL(mlx4_srq_arm);
+
+int mlx4_srq_query(struct mlx4_dev *dev, struct mlx4_srq *srq, int *limit_watermark)
+{
+ struct mlx4_cmd_mailbox *mailbox;
+ struct mlx4_srq_context *srq_context;
+ int err;
+
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox))
+ return PTR_ERR(mailbox);
+
+ srq_context = mailbox->buf;
+
+ err = mlx4_QUERY_SRQ(dev, mailbox, srq->srqn);
+ if (err)
+ goto err_out;
+ *limit_watermark = be16_to_cpu(srq_context->limit_watermark);
+
+err_out:
+ mlx4_free_cmd_mailbox(dev, mailbox);
+ return err;
+}
+EXPORT_SYMBOL_GPL(mlx4_srq_query);
+
+int mlx4_init_srq_table(struct mlx4_dev *dev)
+{
+ struct mlx4_srq_table *srq_table = &mlx4_priv(dev)->srq_table;
+ int err;
+
+ spin_lock_init(&srq_table->lock);
+ INIT_RADIX_TREE(&srq_table->tree, GFP_ATOMIC);
+
+ err = mlx4_bitmap_init(&srq_table->bitmap, dev->caps.num_srqs,
+ dev->caps.num_srqs - 1, dev->caps.reserved_srqs, 0);
+ if (err)
+ return err;
+
+ return 0;
+}
+
+void mlx4_cleanup_srq_table(struct mlx4_dev *dev)
+{
+ mlx4_bitmap_cleanup(&mlx4_priv(dev)->srq_table.bitmap);
+}
+++ /dev/null
-obj-$(CONFIG_MLX4_CORE) += mlx4_core.o
-
-mlx4_core-y := alloc.o catas.o cmd.o cq.o eq.o fw.o icm.o intf.o main.o mcg.o \
- mr.o pd.o port.o profile.o qp.o reset.o sense.o srq.o
-
-obj-$(CONFIG_MLX4_EN) += mlx4_en.o
-
-mlx4_en-y := en_main.o en_tx.o en_rx.o en_ethtool.o en_port.o en_cq.o \
- en_resources.o en_netdev.o en_selftest.o
+++ /dev/null
-/*
- * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
- * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include <linux/errno.h>
-#include <linux/slab.h>
-#include <linux/mm.h>
-#include <linux/bitmap.h>
-#include <linux/dma-mapping.h>
-#include <linux/vmalloc.h>
-
-#include "mlx4.h"
-
-u32 mlx4_bitmap_alloc(struct mlx4_bitmap *bitmap)
-{
- u32 obj;
-
- spin_lock(&bitmap->lock);
-
- obj = find_next_zero_bit(bitmap->table, bitmap->max, bitmap->last);
- if (obj >= bitmap->max) {
- bitmap->top = (bitmap->top + bitmap->max + bitmap->reserved_top)
- & bitmap->mask;
- obj = find_first_zero_bit(bitmap->table, bitmap->max);
- }
-
- if (obj < bitmap->max) {
- set_bit(obj, bitmap->table);
- bitmap->last = (obj + 1);
- if (bitmap->last == bitmap->max)
- bitmap->last = 0;
- obj |= bitmap->top;
- } else
- obj = -1;
-
- if (obj != -1)
- --bitmap->avail;
-
- spin_unlock(&bitmap->lock);
-
- return obj;
-}
-
-void mlx4_bitmap_free(struct mlx4_bitmap *bitmap, u32 obj)
-{
- mlx4_bitmap_free_range(bitmap, obj, 1);
-}
-
-u32 mlx4_bitmap_alloc_range(struct mlx4_bitmap *bitmap, int cnt, int align)
-{
- u32 obj;
-
- if (likely(cnt == 1 && align == 1))
- return mlx4_bitmap_alloc(bitmap);
-
- spin_lock(&bitmap->lock);
-
- obj = bitmap_find_next_zero_area(bitmap->table, bitmap->max,
- bitmap->last, cnt, align - 1);
- if (obj >= bitmap->max) {
- bitmap->top = (bitmap->top + bitmap->max + bitmap->reserved_top)
- & bitmap->mask;
- obj = bitmap_find_next_zero_area(bitmap->table, bitmap->max,
- 0, cnt, align - 1);
- }
-
- if (obj < bitmap->max) {
- bitmap_set(bitmap->table, obj, cnt);
- if (obj == bitmap->last) {
- bitmap->last = (obj + cnt);
- if (bitmap->last >= bitmap->max)
- bitmap->last = 0;
- }
- obj |= bitmap->top;
- } else
- obj = -1;
-
- if (obj != -1)
- bitmap->avail -= cnt;
-
- spin_unlock(&bitmap->lock);
-
- return obj;
-}
-
-u32 mlx4_bitmap_avail(struct mlx4_bitmap *bitmap)
-{
- return bitmap->avail;
-}
-
-void mlx4_bitmap_free_range(struct mlx4_bitmap *bitmap, u32 obj, int cnt)
-{
- obj &= bitmap->max + bitmap->reserved_top - 1;
-
- spin_lock(&bitmap->lock);
- bitmap_clear(bitmap->table, obj, cnt);
- bitmap->last = min(bitmap->last, obj);
- bitmap->top = (bitmap->top + bitmap->max + bitmap->reserved_top)
- & bitmap->mask;
- bitmap->avail += cnt;
- spin_unlock(&bitmap->lock);
-}
-
-int mlx4_bitmap_init(struct mlx4_bitmap *bitmap, u32 num, u32 mask,
- u32 reserved_bot, u32 reserved_top)
-{
- /* num must be a power of 2 */
- if (num != roundup_pow_of_two(num))
- return -EINVAL;
-
- bitmap->last = 0;
- bitmap->top = 0;
- bitmap->max = num - reserved_top;
- bitmap->mask = mask;
- bitmap->reserved_top = reserved_top;
- bitmap->avail = num - reserved_top - reserved_bot;
- spin_lock_init(&bitmap->lock);
- bitmap->table = kzalloc(BITS_TO_LONGS(bitmap->max) *
- sizeof (long), GFP_KERNEL);
- if (!bitmap->table)
- return -ENOMEM;
-
- bitmap_set(bitmap->table, 0, reserved_bot);
-
- return 0;
-}
-
-void mlx4_bitmap_cleanup(struct mlx4_bitmap *bitmap)
-{
- kfree(bitmap->table);
-}
-
-/*
- * Handling for queue buffers -- we allocate a bunch of memory and
- * register it in a memory region at HCA virtual address 0. If the
- * requested size is > max_direct, we split the allocation into
- * multiple pages, so we don't require too much contiguous memory.
- */
-
-int mlx4_buf_alloc(struct mlx4_dev *dev, int size, int max_direct,
- struct mlx4_buf *buf)
-{
- dma_addr_t t;
-
- if (size <= max_direct) {
- buf->nbufs = 1;
- buf->npages = 1;
- buf->page_shift = get_order(size) + PAGE_SHIFT;
- buf->direct.buf = dma_alloc_coherent(&dev->pdev->dev,
- size, &t, GFP_KERNEL);
- if (!buf->direct.buf)
- return -ENOMEM;
-
- buf->direct.map = t;
-
- while (t & ((1 << buf->page_shift) - 1)) {
- --buf->page_shift;
- buf->npages *= 2;
- }
-
- memset(buf->direct.buf, 0, size);
- } else {
- int i;
-
- buf->direct.buf = NULL;
- buf->nbufs = (size + PAGE_SIZE - 1) / PAGE_SIZE;
- buf->npages = buf->nbufs;
- buf->page_shift = PAGE_SHIFT;
- buf->page_list = kcalloc(buf->nbufs, sizeof(*buf->page_list),
- GFP_KERNEL);
- if (!buf->page_list)
- return -ENOMEM;
-
- for (i = 0; i < buf->nbufs; ++i) {
- buf->page_list[i].buf =
- dma_alloc_coherent(&dev->pdev->dev, PAGE_SIZE,
- &t, GFP_KERNEL);
- if (!buf->page_list[i].buf)
- goto err_free;
-
- buf->page_list[i].map = t;
-
- memset(buf->page_list[i].buf, 0, PAGE_SIZE);
- }
-
- if (BITS_PER_LONG == 64) {
- struct page **pages;
- pages = kmalloc(sizeof *pages * buf->nbufs, GFP_KERNEL);
- if (!pages)
- goto err_free;
- for (i = 0; i < buf->nbufs; ++i)
- pages[i] = virt_to_page(buf->page_list[i].buf);
- buf->direct.buf = vmap(pages, buf->nbufs, VM_MAP, PAGE_KERNEL);
- kfree(pages);
- if (!buf->direct.buf)
- goto err_free;
- }
- }
-
- return 0;
-
-err_free:
- mlx4_buf_free(dev, size, buf);
-
- return -ENOMEM;
-}
-EXPORT_SYMBOL_GPL(mlx4_buf_alloc);
-
-void mlx4_buf_free(struct mlx4_dev *dev, int size, struct mlx4_buf *buf)
-{
- int i;
-
- if (buf->nbufs == 1)
- dma_free_coherent(&dev->pdev->dev, size, buf->direct.buf,
- buf->direct.map);
- else {
- if (BITS_PER_LONG == 64 && buf->direct.buf)
- vunmap(buf->direct.buf);
-
- for (i = 0; i < buf->nbufs; ++i)
- if (buf->page_list[i].buf)
- dma_free_coherent(&dev->pdev->dev, PAGE_SIZE,
- buf->page_list[i].buf,
- buf->page_list[i].map);
- kfree(buf->page_list);
- }
-}
-EXPORT_SYMBOL_GPL(mlx4_buf_free);
-
-static struct mlx4_db_pgdir *mlx4_alloc_db_pgdir(struct device *dma_device)
-{
- struct mlx4_db_pgdir *pgdir;
-
- pgdir = kzalloc(sizeof *pgdir, GFP_KERNEL);
- if (!pgdir)
- return NULL;
-
- bitmap_fill(pgdir->order1, MLX4_DB_PER_PAGE / 2);
- pgdir->bits[0] = pgdir->order0;
- pgdir->bits[1] = pgdir->order1;
- pgdir->db_page = dma_alloc_coherent(dma_device, PAGE_SIZE,
- &pgdir->db_dma, GFP_KERNEL);
- if (!pgdir->db_page) {
- kfree(pgdir);
- return NULL;
- }
-
- return pgdir;
-}
-
-static int mlx4_alloc_db_from_pgdir(struct mlx4_db_pgdir *pgdir,
- struct mlx4_db *db, int order)
-{
- int o;
- int i;
-
- for (o = order; o <= 1; ++o) {
- i = find_first_bit(pgdir->bits[o], MLX4_DB_PER_PAGE >> o);
- if (i < MLX4_DB_PER_PAGE >> o)
- goto found;
- }
-
- return -ENOMEM;
-
-found:
- clear_bit(i, pgdir->bits[o]);
-
- i <<= o;
-
- if (o > order)
- set_bit(i ^ 1, pgdir->bits[order]);
-
- db->u.pgdir = pgdir;
- db->index = i;
- db->db = pgdir->db_page + db->index;
- db->dma = pgdir->db_dma + db->index * 4;
- db->order = order;
-
- return 0;
-}
-
-int mlx4_db_alloc(struct mlx4_dev *dev, struct mlx4_db *db, int order)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- struct mlx4_db_pgdir *pgdir;
- int ret = 0;
-
- mutex_lock(&priv->pgdir_mutex);
-
- list_for_each_entry(pgdir, &priv->pgdir_list, list)
- if (!mlx4_alloc_db_from_pgdir(pgdir, db, order))
- goto out;
-
- pgdir = mlx4_alloc_db_pgdir(&(dev->pdev->dev));
- if (!pgdir) {
- ret = -ENOMEM;
- goto out;
- }
-
- list_add(&pgdir->list, &priv->pgdir_list);
-
- /* This should never fail -- we just allocated an empty page: */
- WARN_ON(mlx4_alloc_db_from_pgdir(pgdir, db, order));
-
-out:
- mutex_unlock(&priv->pgdir_mutex);
-
- return ret;
-}
-EXPORT_SYMBOL_GPL(mlx4_db_alloc);
-
-void mlx4_db_free(struct mlx4_dev *dev, struct mlx4_db *db)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- int o;
- int i;
-
- mutex_lock(&priv->pgdir_mutex);
-
- o = db->order;
- i = db->index;
-
- if (db->order == 0 && test_bit(i ^ 1, db->u.pgdir->order0)) {
- clear_bit(i ^ 1, db->u.pgdir->order0);
- ++o;
- }
- i >>= o;
- set_bit(i, db->u.pgdir->bits[o]);
-
- if (bitmap_full(db->u.pgdir->order1, MLX4_DB_PER_PAGE / 2)) {
- dma_free_coherent(&(dev->pdev->dev), PAGE_SIZE,
- db->u.pgdir->db_page, db->u.pgdir->db_dma);
- list_del(&db->u.pgdir->list);
- kfree(db->u.pgdir);
- }
-
- mutex_unlock(&priv->pgdir_mutex);
-}
-EXPORT_SYMBOL_GPL(mlx4_db_free);
-
-int mlx4_alloc_hwq_res(struct mlx4_dev *dev, struct mlx4_hwq_resources *wqres,
- int size, int max_direct)
-{
- int err;
-
- err = mlx4_db_alloc(dev, &wqres->db, 1);
- if (err)
- return err;
-
- *wqres->db.db = 0;
-
- err = mlx4_buf_alloc(dev, size, max_direct, &wqres->buf);
- if (err)
- goto err_db;
-
- err = mlx4_mtt_init(dev, wqres->buf.npages, wqres->buf.page_shift,
- &wqres->mtt);
- if (err)
- goto err_buf;
-
- err = mlx4_buf_write_mtt(dev, &wqres->mtt, &wqres->buf);
- if (err)
- goto err_mtt;
-
- return 0;
-
-err_mtt:
- mlx4_mtt_cleanup(dev, &wqres->mtt);
-err_buf:
- mlx4_buf_free(dev, size, &wqres->buf);
-err_db:
- mlx4_db_free(dev, &wqres->db);
-
- return err;
-}
-EXPORT_SYMBOL_GPL(mlx4_alloc_hwq_res);
-
-void mlx4_free_hwq_res(struct mlx4_dev *dev, struct mlx4_hwq_resources *wqres,
- int size)
-{
- mlx4_mtt_cleanup(dev, &wqres->mtt);
- mlx4_buf_free(dev, size, &wqres->buf);
- mlx4_db_free(dev, &wqres->db);
-}
-EXPORT_SYMBOL_GPL(mlx4_free_hwq_res);
+++ /dev/null
-/*
- * Copyright (c) 2007 Cisco Systems, Inc. All rights reserved.
- * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include <linux/workqueue.h>
-
-#include "mlx4.h"
-
-enum {
- MLX4_CATAS_POLL_INTERVAL = 5 * HZ,
-};
-
-static DEFINE_SPINLOCK(catas_lock);
-
-static LIST_HEAD(catas_list);
-static struct work_struct catas_work;
-
-static int internal_err_reset = 1;
-module_param(internal_err_reset, int, 0644);
-MODULE_PARM_DESC(internal_err_reset,
- "Reset device on internal errors if non-zero (default 1)");
-
-static void dump_err_buf(struct mlx4_dev *dev)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
-
- int i;
-
- mlx4_err(dev, "Internal error detected:\n");
- for (i = 0; i < priv->fw.catas_size; ++i)
- mlx4_err(dev, " buf[%02x]: %08x\n",
- i, swab32(readl(priv->catas_err.map + i)));
-}
-
-static void poll_catas(unsigned long dev_ptr)
-{
- struct mlx4_dev *dev = (struct mlx4_dev *) dev_ptr;
- struct mlx4_priv *priv = mlx4_priv(dev);
-
- if (readl(priv->catas_err.map)) {
- dump_err_buf(dev);
-
- mlx4_dispatch_event(dev, MLX4_DEV_EVENT_CATASTROPHIC_ERROR, 0);
-
- if (internal_err_reset) {
- spin_lock(&catas_lock);
- list_add(&priv->catas_err.list, &catas_list);
- spin_unlock(&catas_lock);
-
- queue_work(mlx4_wq, &catas_work);
- }
- } else
- mod_timer(&priv->catas_err.timer,
- round_jiffies(jiffies + MLX4_CATAS_POLL_INTERVAL));
-}
-
-static void catas_reset(struct work_struct *work)
-{
- struct mlx4_priv *priv, *tmppriv;
- struct mlx4_dev *dev;
-
- LIST_HEAD(tlist);
- int ret;
-
- spin_lock_irq(&catas_lock);
- list_splice_init(&catas_list, &tlist);
- spin_unlock_irq(&catas_lock);
-
- list_for_each_entry_safe(priv, tmppriv, &tlist, catas_err.list) {
- struct pci_dev *pdev = priv->dev.pdev;
-
- ret = mlx4_restart_one(priv->dev.pdev);
- /* 'priv' now is not valid */
- if (ret)
- pr_err("mlx4 %s: Reset failed (%d)\n",
- pci_name(pdev), ret);
- else {
- dev = pci_get_drvdata(pdev);
- mlx4_dbg(dev, "Reset succeeded\n");
- }
- }
-}
-
-void mlx4_start_catas_poll(struct mlx4_dev *dev)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- phys_addr_t addr;
-
- INIT_LIST_HEAD(&priv->catas_err.list);
- init_timer(&priv->catas_err.timer);
- priv->catas_err.map = NULL;
-
- addr = pci_resource_start(dev->pdev, priv->fw.catas_bar) +
- priv->fw.catas_offset;
-
- priv->catas_err.map = ioremap(addr, priv->fw.catas_size * 4);
- if (!priv->catas_err.map) {
- mlx4_warn(dev, "Failed to map internal error buffer at 0x%llx\n",
- (unsigned long long) addr);
- return;
- }
-
- priv->catas_err.timer.data = (unsigned long) dev;
- priv->catas_err.timer.function = poll_catas;
- priv->catas_err.timer.expires =
- round_jiffies(jiffies + MLX4_CATAS_POLL_INTERVAL);
- add_timer(&priv->catas_err.timer);
-}
-
-void mlx4_stop_catas_poll(struct mlx4_dev *dev)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
-
- del_timer_sync(&priv->catas_err.timer);
-
- if (priv->catas_err.map)
- iounmap(priv->catas_err.map);
-
- spin_lock_irq(&catas_lock);
- list_del(&priv->catas_err.list);
- spin_unlock_irq(&catas_lock);
-}
-
-void __init mlx4_catas_init(void)
-{
- INIT_WORK(&catas_work, catas_reset);
-}
+++ /dev/null
-/*
- * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
- * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
- * Copyright (c) 2005, 2006, 2007 Cisco Systems, Inc. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/pci.h>
-#include <linux/errno.h>
-
-#include <linux/mlx4/cmd.h>
-
-#include <asm/io.h>
-
-#include "mlx4.h"
-
-#define CMD_POLL_TOKEN 0xffff
-
-enum {
- /* command completed successfully: */
- CMD_STAT_OK = 0x00,
- /* Internal error (such as a bus error) occurred while processing command: */
- CMD_STAT_INTERNAL_ERR = 0x01,
- /* Operation/command not supported or opcode modifier not supported: */
- CMD_STAT_BAD_OP = 0x02,
- /* Parameter not supported or parameter out of range: */
- CMD_STAT_BAD_PARAM = 0x03,
- /* System not enabled or bad system state: */
- CMD_STAT_BAD_SYS_STATE = 0x04,
- /* Attempt to access reserved or unallocaterd resource: */
- CMD_STAT_BAD_RESOURCE = 0x05,
- /* Requested resource is currently executing a command, or is otherwise busy: */
- CMD_STAT_RESOURCE_BUSY = 0x06,
- /* Required capability exceeds device limits: */
- CMD_STAT_EXCEED_LIM = 0x08,
- /* Resource is not in the appropriate state or ownership: */
- CMD_STAT_BAD_RES_STATE = 0x09,
- /* Index out of range: */
- CMD_STAT_BAD_INDEX = 0x0a,
- /* FW image corrupted: */
- CMD_STAT_BAD_NVMEM = 0x0b,
- /* Error in ICM mapping (e.g. not enough auxiliary ICM pages to execute command): */
- CMD_STAT_ICM_ERROR = 0x0c,
- /* Attempt to modify a QP/EE which is not in the presumed state: */
- CMD_STAT_BAD_QP_STATE = 0x10,
- /* Bad segment parameters (Address/Size): */
- CMD_STAT_BAD_SEG_PARAM = 0x20,
- /* Memory Region has Memory Windows bound to: */
- CMD_STAT_REG_BOUND = 0x21,
- /* HCA local attached memory not present: */
- CMD_STAT_LAM_NOT_PRE = 0x22,
- /* Bad management packet (silently discarded): */
- CMD_STAT_BAD_PKT = 0x30,
- /* More outstanding CQEs in CQ than new CQ size: */
- CMD_STAT_BAD_SIZE = 0x40,
- /* Multi Function device support required: */
- CMD_STAT_MULTI_FUNC_REQ = 0x50,
-};
-
-enum {
- HCR_IN_PARAM_OFFSET = 0x00,
- HCR_IN_MODIFIER_OFFSET = 0x08,
- HCR_OUT_PARAM_OFFSET = 0x0c,
- HCR_TOKEN_OFFSET = 0x14,
- HCR_STATUS_OFFSET = 0x18,
-
- HCR_OPMOD_SHIFT = 12,
- HCR_T_BIT = 21,
- HCR_E_BIT = 22,
- HCR_GO_BIT = 23
-};
-
-enum {
- GO_BIT_TIMEOUT_MSECS = 10000
-};
-
-struct mlx4_cmd_context {
- struct completion done;
- int result;
- int next;
- u64 out_param;
- u16 token;
-};
-
-static int mlx4_status_to_errno(u8 status)
-{
- static const int trans_table[] = {
- [CMD_STAT_INTERNAL_ERR] = -EIO,
- [CMD_STAT_BAD_OP] = -EPERM,
- [CMD_STAT_BAD_PARAM] = -EINVAL,
- [CMD_STAT_BAD_SYS_STATE] = -ENXIO,
- [CMD_STAT_BAD_RESOURCE] = -EBADF,
- [CMD_STAT_RESOURCE_BUSY] = -EBUSY,
- [CMD_STAT_EXCEED_LIM] = -ENOMEM,
- [CMD_STAT_BAD_RES_STATE] = -EBADF,
- [CMD_STAT_BAD_INDEX] = -EBADF,
- [CMD_STAT_BAD_NVMEM] = -EFAULT,
- [CMD_STAT_ICM_ERROR] = -ENFILE,
- [CMD_STAT_BAD_QP_STATE] = -EINVAL,
- [CMD_STAT_BAD_SEG_PARAM] = -EFAULT,
- [CMD_STAT_REG_BOUND] = -EBUSY,
- [CMD_STAT_LAM_NOT_PRE] = -EAGAIN,
- [CMD_STAT_BAD_PKT] = -EINVAL,
- [CMD_STAT_BAD_SIZE] = -ENOMEM,
- [CMD_STAT_MULTI_FUNC_REQ] = -EACCES,
- };
-
- if (status >= ARRAY_SIZE(trans_table) ||
- (status != CMD_STAT_OK && trans_table[status] == 0))
- return -EIO;
-
- return trans_table[status];
-}
-
-static int cmd_pending(struct mlx4_dev *dev)
-{
- u32 status = readl(mlx4_priv(dev)->cmd.hcr + HCR_STATUS_OFFSET);
-
- return (status & swab32(1 << HCR_GO_BIT)) ||
- (mlx4_priv(dev)->cmd.toggle ==
- !!(status & swab32(1 << HCR_T_BIT)));
-}
-
-static int mlx4_cmd_post(struct mlx4_dev *dev, u64 in_param, u64 out_param,
- u32 in_modifier, u8 op_modifier, u16 op, u16 token,
- int event)
-{
- struct mlx4_cmd *cmd = &mlx4_priv(dev)->cmd;
- u32 __iomem *hcr = cmd->hcr;
- int ret = -EAGAIN;
- unsigned long end;
-
- mutex_lock(&cmd->hcr_mutex);
-
- end = jiffies;
- if (event)
- end += msecs_to_jiffies(GO_BIT_TIMEOUT_MSECS);
-
- while (cmd_pending(dev)) {
- if (time_after_eq(jiffies, end))
- goto out;
- cond_resched();
- }
-
- /*
- * We use writel (instead of something like memcpy_toio)
- * because writes of less than 32 bits to the HCR don't work
- * (and some architectures such as ia64 implement memcpy_toio
- * in terms of writeb).
- */
- __raw_writel((__force u32) cpu_to_be32(in_param >> 32), hcr + 0);
- __raw_writel((__force u32) cpu_to_be32(in_param & 0xfffffffful), hcr + 1);
- __raw_writel((__force u32) cpu_to_be32(in_modifier), hcr + 2);
- __raw_writel((__force u32) cpu_to_be32(out_param >> 32), hcr + 3);
- __raw_writel((__force u32) cpu_to_be32(out_param & 0xfffffffful), hcr + 4);
- __raw_writel((__force u32) cpu_to_be32(token << 16), hcr + 5);
-
- /* __raw_writel may not order writes. */
- wmb();
-
- __raw_writel((__force u32) cpu_to_be32((1 << HCR_GO_BIT) |
- (cmd->toggle << HCR_T_BIT) |
- (event ? (1 << HCR_E_BIT) : 0) |
- (op_modifier << HCR_OPMOD_SHIFT) |
- op), hcr + 6);
-
- /*
- * Make sure that our HCR writes don't get mixed in with
- * writes from another CPU starting a FW command.
- */
- mmiowb();
-
- cmd->toggle = cmd->toggle ^ 1;
-
- ret = 0;
-
-out:
- mutex_unlock(&cmd->hcr_mutex);
- return ret;
-}
-
-static int mlx4_cmd_poll(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
- int out_is_imm, u32 in_modifier, u8 op_modifier,
- u16 op, unsigned long timeout)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- void __iomem *hcr = priv->cmd.hcr;
- int err = 0;
- unsigned long end;
-
- down(&priv->cmd.poll_sem);
-
- err = mlx4_cmd_post(dev, in_param, out_param ? *out_param : 0,
- in_modifier, op_modifier, op, CMD_POLL_TOKEN, 0);
- if (err)
- goto out;
-
- end = msecs_to_jiffies(timeout) + jiffies;
- while (cmd_pending(dev) && time_before(jiffies, end))
- cond_resched();
-
- if (cmd_pending(dev)) {
- err = -ETIMEDOUT;
- goto out;
- }
-
- if (out_is_imm)
- *out_param =
- (u64) be32_to_cpu((__force __be32)
- __raw_readl(hcr + HCR_OUT_PARAM_OFFSET)) << 32 |
- (u64) be32_to_cpu((__force __be32)
- __raw_readl(hcr + HCR_OUT_PARAM_OFFSET + 4));
-
- err = mlx4_status_to_errno(be32_to_cpu((__force __be32)
- __raw_readl(hcr + HCR_STATUS_OFFSET)) >> 24);
-
-out:
- up(&priv->cmd.poll_sem);
- return err;
-}
-
-void mlx4_cmd_event(struct mlx4_dev *dev, u16 token, u8 status, u64 out_param)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- struct mlx4_cmd_context *context =
- &priv->cmd.context[token & priv->cmd.token_mask];
-
- /* previously timed out command completing at long last */
- if (token != context->token)
- return;
-
- context->result = mlx4_status_to_errno(status);
- context->out_param = out_param;
-
- complete(&context->done);
-}
-
-static int mlx4_cmd_wait(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
- int out_is_imm, u32 in_modifier, u8 op_modifier,
- u16 op, unsigned long timeout)
-{
- struct mlx4_cmd *cmd = &mlx4_priv(dev)->cmd;
- struct mlx4_cmd_context *context;
- int err = 0;
-
- down(&cmd->event_sem);
-
- spin_lock(&cmd->context_lock);
- BUG_ON(cmd->free_head < 0);
- context = &cmd->context[cmd->free_head];
- context->token += cmd->token_mask + 1;
- cmd->free_head = context->next;
- spin_unlock(&cmd->context_lock);
-
- init_completion(&context->done);
-
- mlx4_cmd_post(dev, in_param, out_param ? *out_param : 0,
- in_modifier, op_modifier, op, context->token, 1);
-
- if (!wait_for_completion_timeout(&context->done, msecs_to_jiffies(timeout))) {
- err = -EBUSY;
- goto out;
- }
-
- err = context->result;
- if (err)
- goto out;
-
- if (out_is_imm)
- *out_param = context->out_param;
-
-out:
- spin_lock(&cmd->context_lock);
- context->next = cmd->free_head;
- cmd->free_head = context - cmd->context;
- spin_unlock(&cmd->context_lock);
-
- up(&cmd->event_sem);
- return err;
-}
-
-int __mlx4_cmd(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
- int out_is_imm, u32 in_modifier, u8 op_modifier,
- u16 op, unsigned long timeout)
-{
- if (mlx4_priv(dev)->cmd.use_events)
- return mlx4_cmd_wait(dev, in_param, out_param, out_is_imm,
- in_modifier, op_modifier, op, timeout);
- else
- return mlx4_cmd_poll(dev, in_param, out_param, out_is_imm,
- in_modifier, op_modifier, op, timeout);
-}
-EXPORT_SYMBOL_GPL(__mlx4_cmd);
-
-int mlx4_cmd_init(struct mlx4_dev *dev)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
-
- mutex_init(&priv->cmd.hcr_mutex);
- sema_init(&priv->cmd.poll_sem, 1);
- priv->cmd.use_events = 0;
- priv->cmd.toggle = 1;
-
- priv->cmd.hcr = ioremap(pci_resource_start(dev->pdev, 0) + MLX4_HCR_BASE,
- MLX4_HCR_SIZE);
- if (!priv->cmd.hcr) {
- mlx4_err(dev, "Couldn't map command register.");
- return -ENOMEM;
- }
-
- priv->cmd.pool = pci_pool_create("mlx4_cmd", dev->pdev,
- MLX4_MAILBOX_SIZE,
- MLX4_MAILBOX_SIZE, 0);
- if (!priv->cmd.pool) {
- iounmap(priv->cmd.hcr);
- return -ENOMEM;
- }
-
- return 0;
-}
-
-void mlx4_cmd_cleanup(struct mlx4_dev *dev)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
-
- pci_pool_destroy(priv->cmd.pool);
- iounmap(priv->cmd.hcr);
-}
-
-/*
- * Switch to using events to issue FW commands (can only be called
- * after event queue for command events has been initialized).
- */
-int mlx4_cmd_use_events(struct mlx4_dev *dev)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- int i;
-
- priv->cmd.context = kmalloc(priv->cmd.max_cmds *
- sizeof (struct mlx4_cmd_context),
- GFP_KERNEL);
- if (!priv->cmd.context)
- return -ENOMEM;
-
- for (i = 0; i < priv->cmd.max_cmds; ++i) {
- priv->cmd.context[i].token = i;
- priv->cmd.context[i].next = i + 1;
- }
-
- priv->cmd.context[priv->cmd.max_cmds - 1].next = -1;
- priv->cmd.free_head = 0;
-
- sema_init(&priv->cmd.event_sem, priv->cmd.max_cmds);
- spin_lock_init(&priv->cmd.context_lock);
-
- for (priv->cmd.token_mask = 1;
- priv->cmd.token_mask < priv->cmd.max_cmds;
- priv->cmd.token_mask <<= 1)
- ; /* nothing */
- --priv->cmd.token_mask;
-
- priv->cmd.use_events = 1;
-
- down(&priv->cmd.poll_sem);
-
- return 0;
-}
-
-/*
- * Switch back to polling (used when shutting down the device)
- */
-void mlx4_cmd_use_polling(struct mlx4_dev *dev)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- int i;
-
- priv->cmd.use_events = 0;
-
- for (i = 0; i < priv->cmd.max_cmds; ++i)
- down(&priv->cmd.event_sem);
-
- kfree(priv->cmd.context);
-
- up(&priv->cmd.poll_sem);
-}
-
-struct mlx4_cmd_mailbox *mlx4_alloc_cmd_mailbox(struct mlx4_dev *dev)
-{
- struct mlx4_cmd_mailbox *mailbox;
-
- mailbox = kmalloc(sizeof *mailbox, GFP_KERNEL);
- if (!mailbox)
- return ERR_PTR(-ENOMEM);
-
- mailbox->buf = pci_pool_alloc(mlx4_priv(dev)->cmd.pool, GFP_KERNEL,
- &mailbox->dma);
- if (!mailbox->buf) {
- kfree(mailbox);
- return ERR_PTR(-ENOMEM);
- }
-
- return mailbox;
-}
-EXPORT_SYMBOL_GPL(mlx4_alloc_cmd_mailbox);
-
-void mlx4_free_cmd_mailbox(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox)
-{
- if (!mailbox)
- return;
-
- pci_pool_free(mlx4_priv(dev)->cmd.pool, mailbox->buf, mailbox->dma);
- kfree(mailbox);
-}
-EXPORT_SYMBOL_GPL(mlx4_free_cmd_mailbox);
+++ /dev/null
-/*
- * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
- * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
- * Copyright (c) 2005, 2006, 2007 Cisco Systems, Inc. All rights reserved.
- * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
- * Copyright (c) 2004 Voltaire, Inc. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include <linux/hardirq.h>
-#include <linux/gfp.h>
-
-#include <linux/mlx4/cmd.h>
-#include <linux/mlx4/cq.h>
-
-#include "mlx4.h"
-#include "icm.h"
-
-struct mlx4_cq_context {
- __be32 flags;
- u16 reserved1[3];
- __be16 page_offset;
- __be32 logsize_usrpage;
- __be16 cq_period;
- __be16 cq_max_count;
- u8 reserved2[3];
- u8 comp_eqn;
- u8 log_page_size;
- u8 reserved3[2];
- u8 mtt_base_addr_h;
- __be32 mtt_base_addr_l;
- __be32 last_notified_index;
- __be32 solicit_producer_index;
- __be32 consumer_index;
- __be32 producer_index;
- u32 reserved4[2];
- __be64 db_rec_addr;
-};
-
-#define MLX4_CQ_STATUS_OK ( 0 << 28)
-#define MLX4_CQ_STATUS_OVERFLOW ( 9 << 28)
-#define MLX4_CQ_STATUS_WRITE_FAIL (10 << 28)
-#define MLX4_CQ_FLAG_CC ( 1 << 18)
-#define MLX4_CQ_FLAG_OI ( 1 << 17)
-#define MLX4_CQ_STATE_ARMED ( 9 << 8)
-#define MLX4_CQ_STATE_ARMED_SOL ( 6 << 8)
-#define MLX4_EQ_STATE_FIRED (10 << 8)
-
-void mlx4_cq_completion(struct mlx4_dev *dev, u32 cqn)
-{
- struct mlx4_cq *cq;
-
- cq = radix_tree_lookup(&mlx4_priv(dev)->cq_table.tree,
- cqn & (dev->caps.num_cqs - 1));
- if (!cq) {
- mlx4_warn(dev, "Completion event for bogus CQ %08x\n", cqn);
- return;
- }
-
- ++cq->arm_sn;
-
- cq->comp(cq);
-}
-
-void mlx4_cq_event(struct mlx4_dev *dev, u32 cqn, int event_type)
-{
- struct mlx4_cq_table *cq_table = &mlx4_priv(dev)->cq_table;
- struct mlx4_cq *cq;
-
- spin_lock(&cq_table->lock);
-
- cq = radix_tree_lookup(&cq_table->tree, cqn & (dev->caps.num_cqs - 1));
- if (cq)
- atomic_inc(&cq->refcount);
-
- spin_unlock(&cq_table->lock);
-
- if (!cq) {
- mlx4_warn(dev, "Async event for bogus CQ %08x\n", cqn);
- return;
- }
-
- cq->event(cq, event_type);
-
- if (atomic_dec_and_test(&cq->refcount))
- complete(&cq->free);
-}
-
-static int mlx4_SW2HW_CQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
- int cq_num)
-{
- return mlx4_cmd(dev, mailbox->dma, cq_num, 0, MLX4_CMD_SW2HW_CQ,
- MLX4_CMD_TIME_CLASS_A);
-}
-
-static int mlx4_MODIFY_CQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
- int cq_num, u32 opmod)
-{
- return mlx4_cmd(dev, mailbox->dma, cq_num, opmod, MLX4_CMD_MODIFY_CQ,
- MLX4_CMD_TIME_CLASS_A);
-}
-
-static int mlx4_HW2SW_CQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
- int cq_num)
-{
- return mlx4_cmd_box(dev, 0, mailbox ? mailbox->dma : 0, cq_num,
- mailbox ? 0 : 1, MLX4_CMD_HW2SW_CQ,
- MLX4_CMD_TIME_CLASS_A);
-}
-
-int mlx4_cq_modify(struct mlx4_dev *dev, struct mlx4_cq *cq,
- u16 count, u16 period)
-{
- struct mlx4_cmd_mailbox *mailbox;
- struct mlx4_cq_context *cq_context;
- int err;
-
- mailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(mailbox))
- return PTR_ERR(mailbox);
-
- cq_context = mailbox->buf;
- memset(cq_context, 0, sizeof *cq_context);
-
- cq_context->cq_max_count = cpu_to_be16(count);
- cq_context->cq_period = cpu_to_be16(period);
-
- err = mlx4_MODIFY_CQ(dev, mailbox, cq->cqn, 1);
-
- mlx4_free_cmd_mailbox(dev, mailbox);
- return err;
-}
-EXPORT_SYMBOL_GPL(mlx4_cq_modify);
-
-int mlx4_cq_resize(struct mlx4_dev *dev, struct mlx4_cq *cq,
- int entries, struct mlx4_mtt *mtt)
-{
- struct mlx4_cmd_mailbox *mailbox;
- struct mlx4_cq_context *cq_context;
- u64 mtt_addr;
- int err;
-
- mailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(mailbox))
- return PTR_ERR(mailbox);
-
- cq_context = mailbox->buf;
- memset(cq_context, 0, sizeof *cq_context);
-
- cq_context->logsize_usrpage = cpu_to_be32(ilog2(entries) << 24);
- cq_context->log_page_size = mtt->page_shift - 12;
- mtt_addr = mlx4_mtt_addr(dev, mtt);
- cq_context->mtt_base_addr_h = mtt_addr >> 32;
- cq_context->mtt_base_addr_l = cpu_to_be32(mtt_addr & 0xffffffff);
-
- err = mlx4_MODIFY_CQ(dev, mailbox, cq->cqn, 0);
-
- mlx4_free_cmd_mailbox(dev, mailbox);
- return err;
-}
-EXPORT_SYMBOL_GPL(mlx4_cq_resize);
-
-int mlx4_cq_alloc(struct mlx4_dev *dev, int nent, struct mlx4_mtt *mtt,
- struct mlx4_uar *uar, u64 db_rec, struct mlx4_cq *cq,
- unsigned vector, int collapsed)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- struct mlx4_cq_table *cq_table = &priv->cq_table;
- struct mlx4_cmd_mailbox *mailbox;
- struct mlx4_cq_context *cq_context;
- u64 mtt_addr;
- int err;
-
- if (vector > dev->caps.num_comp_vectors + dev->caps.comp_pool)
- return -EINVAL;
-
- cq->vector = vector;
-
- cq->cqn = mlx4_bitmap_alloc(&cq_table->bitmap);
- if (cq->cqn == -1)
- return -ENOMEM;
-
- err = mlx4_table_get(dev, &cq_table->table, cq->cqn);
- if (err)
- goto err_out;
-
- err = mlx4_table_get(dev, &cq_table->cmpt_table, cq->cqn);
- if (err)
- goto err_put;
-
- spin_lock_irq(&cq_table->lock);
- err = radix_tree_insert(&cq_table->tree, cq->cqn, cq);
- spin_unlock_irq(&cq_table->lock);
- if (err)
- goto err_cmpt_put;
-
- mailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(mailbox)) {
- err = PTR_ERR(mailbox);
- goto err_radix;
- }
-
- cq_context = mailbox->buf;
- memset(cq_context, 0, sizeof *cq_context);
-
- cq_context->flags = cpu_to_be32(!!collapsed << 18);
- cq_context->logsize_usrpage = cpu_to_be32((ilog2(nent) << 24) | uar->index);
- cq_context->comp_eqn = priv->eq_table.eq[vector].eqn;
- cq_context->log_page_size = mtt->page_shift - MLX4_ICM_PAGE_SHIFT;
-
- mtt_addr = mlx4_mtt_addr(dev, mtt);
- cq_context->mtt_base_addr_h = mtt_addr >> 32;
- cq_context->mtt_base_addr_l = cpu_to_be32(mtt_addr & 0xffffffff);
- cq_context->db_rec_addr = cpu_to_be64(db_rec);
-
- err = mlx4_SW2HW_CQ(dev, mailbox, cq->cqn);
- mlx4_free_cmd_mailbox(dev, mailbox);
- if (err)
- goto err_radix;
-
- cq->cons_index = 0;
- cq->arm_sn = 1;
- cq->uar = uar;
- atomic_set(&cq->refcount, 1);
- init_completion(&cq->free);
-
- return 0;
-
-err_radix:
- spin_lock_irq(&cq_table->lock);
- radix_tree_delete(&cq_table->tree, cq->cqn);
- spin_unlock_irq(&cq_table->lock);
-
-err_cmpt_put:
- mlx4_table_put(dev, &cq_table->cmpt_table, cq->cqn);
-
-err_put:
- mlx4_table_put(dev, &cq_table->table, cq->cqn);
-
-err_out:
- mlx4_bitmap_free(&cq_table->bitmap, cq->cqn);
-
- return err;
-}
-EXPORT_SYMBOL_GPL(mlx4_cq_alloc);
-
-void mlx4_cq_free(struct mlx4_dev *dev, struct mlx4_cq *cq)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- struct mlx4_cq_table *cq_table = &priv->cq_table;
- int err;
-
- err = mlx4_HW2SW_CQ(dev, NULL, cq->cqn);
- if (err)
- mlx4_warn(dev, "HW2SW_CQ failed (%d) for CQN %06x\n", err, cq->cqn);
-
- synchronize_irq(priv->eq_table.eq[cq->vector].irq);
-
- spin_lock_irq(&cq_table->lock);
- radix_tree_delete(&cq_table->tree, cq->cqn);
- spin_unlock_irq(&cq_table->lock);
-
- if (atomic_dec_and_test(&cq->refcount))
- complete(&cq->free);
- wait_for_completion(&cq->free);
-
- mlx4_table_put(dev, &cq_table->table, cq->cqn);
- mlx4_bitmap_free(&cq_table->bitmap, cq->cqn);
-}
-EXPORT_SYMBOL_GPL(mlx4_cq_free);
-
-int mlx4_init_cq_table(struct mlx4_dev *dev)
-{
- struct mlx4_cq_table *cq_table = &mlx4_priv(dev)->cq_table;
- int err;
-
- spin_lock_init(&cq_table->lock);
- INIT_RADIX_TREE(&cq_table->tree, GFP_ATOMIC);
-
- err = mlx4_bitmap_init(&cq_table->bitmap, dev->caps.num_cqs,
- dev->caps.num_cqs - 1, dev->caps.reserved_cqs, 0);
- if (err)
- return err;
-
- return 0;
-}
-
-void mlx4_cleanup_cq_table(struct mlx4_dev *dev)
-{
- /* Nothing to do to clean up radix_tree */
- mlx4_bitmap_cleanup(&mlx4_priv(dev)->cq_table.bitmap);
-}
+++ /dev/null
-/*
- * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- *
- */
-
-#include <linux/mlx4/cq.h>
-#include <linux/mlx4/qp.h>
-#include <linux/mlx4/cmd.h>
-
-#include "mlx4_en.h"
-
-static void mlx4_en_cq_event(struct mlx4_cq *cq, enum mlx4_event event)
-{
- return;
-}
-
-
-int mlx4_en_create_cq(struct mlx4_en_priv *priv,
- struct mlx4_en_cq *cq,
- int entries, int ring, enum cq_type mode)
-{
- struct mlx4_en_dev *mdev = priv->mdev;
- int err;
-
- cq->size = entries;
- if (mode == RX)
- cq->buf_size = cq->size * sizeof(struct mlx4_cqe);
- else
- cq->buf_size = sizeof(struct mlx4_cqe);
-
- cq->ring = ring;
- cq->is_tx = mode;
- spin_lock_init(&cq->lock);
-
- err = mlx4_alloc_hwq_res(mdev->dev, &cq->wqres,
- cq->buf_size, 2 * PAGE_SIZE);
- if (err)
- return err;
-
- err = mlx4_en_map_buffer(&cq->wqres.buf);
- if (err)
- mlx4_free_hwq_res(mdev->dev, &cq->wqres, cq->buf_size);
- else
- cq->buf = (struct mlx4_cqe *) cq->wqres.buf.direct.buf;
-
- return err;
-}
-
-int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq)
-{
- struct mlx4_en_dev *mdev = priv->mdev;
- int err = 0;
- char name[25];
-
- cq->dev = mdev->pndev[priv->port];
- cq->mcq.set_ci_db = cq->wqres.db.db;
- cq->mcq.arm_db = cq->wqres.db.db + 1;
- *cq->mcq.set_ci_db = 0;
- *cq->mcq.arm_db = 0;
- memset(cq->buf, 0, cq->buf_size);
-
- if (cq->is_tx == RX) {
- if (mdev->dev->caps.comp_pool) {
- if (!cq->vector) {
- sprintf(name , "%s-rx-%d", priv->dev->name, cq->ring);
- if (mlx4_assign_eq(mdev->dev, name, &cq->vector)) {
- cq->vector = (cq->ring + 1 + priv->port) %
- mdev->dev->caps.num_comp_vectors;
- mlx4_warn(mdev, "Failed Assigning an EQ to "
- "%s_rx-%d ,Falling back to legacy EQ's\n",
- priv->dev->name, cq->ring);
- }
- }
- } else {
- cq->vector = (cq->ring + 1 + priv->port) %
- mdev->dev->caps.num_comp_vectors;
- }
- } else {
- if (!cq->vector || !mdev->dev->caps.comp_pool) {
- /*Fallback to legacy pool in case of error*/
- cq->vector = 0;
- }
- }
-
- if (!cq->is_tx)
- cq->size = priv->rx_ring[cq->ring].actual_size;
-
- err = mlx4_cq_alloc(mdev->dev, cq->size, &cq->wqres.mtt, &mdev->priv_uar,
- cq->wqres.db.dma, &cq->mcq, cq->vector, cq->is_tx);
- if (err)
- return err;
-
- cq->mcq.comp = cq->is_tx ? mlx4_en_tx_irq : mlx4_en_rx_irq;
- cq->mcq.event = mlx4_en_cq_event;
-
- if (cq->is_tx) {
- init_timer(&cq->timer);
- cq->timer.function = mlx4_en_poll_tx_cq;
- cq->timer.data = (unsigned long) cq;
- } else {
- netif_napi_add(cq->dev, &cq->napi, mlx4_en_poll_rx_cq, 64);
- napi_enable(&cq->napi);
- }
-
- return 0;
-}
-
-void mlx4_en_destroy_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq,
- bool reserve_vectors)
-{
- struct mlx4_en_dev *mdev = priv->mdev;
-
- mlx4_en_unmap_buffer(&cq->wqres.buf);
- mlx4_free_hwq_res(mdev->dev, &cq->wqres, cq->buf_size);
- if (priv->mdev->dev->caps.comp_pool && cq->vector && !reserve_vectors)
- mlx4_release_eq(priv->mdev->dev, cq->vector);
- cq->buf_size = 0;
- cq->buf = NULL;
-}
-
-void mlx4_en_deactivate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq)
-{
- struct mlx4_en_dev *mdev = priv->mdev;
-
- if (cq->is_tx)
- del_timer(&cq->timer);
- else {
- napi_disable(&cq->napi);
- netif_napi_del(&cq->napi);
- }
-
- mlx4_cq_free(mdev->dev, &cq->mcq);
-}
-
-/* Set rx cq moderation parameters */
-int mlx4_en_set_cq_moder(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq)
-{
- return mlx4_cq_modify(priv->mdev->dev, &cq->mcq,
- cq->moder_cnt, cq->moder_time);
-}
-
-int mlx4_en_arm_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq)
-{
- mlx4_cq_arm(&cq->mcq, MLX4_CQ_DB_REQ_NOT, priv->mdev->uar_map,
- &priv->mdev->uar_lock);
-
- return 0;
-}
-
-
+++ /dev/null
-/*
- * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/ethtool.h>
-#include <linux/netdevice.h>
-
-#include "mlx4_en.h"
-#include "en_port.h"
-
-
-static void
-mlx4_en_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
- struct mlx4_en_dev *mdev = priv->mdev;
-
- strncpy(drvinfo->driver, DRV_NAME, 32);
- strncpy(drvinfo->version, DRV_VERSION " (" DRV_RELDATE ")", 32);
- sprintf(drvinfo->fw_version, "%d.%d.%d",
- (u16) (mdev->dev->caps.fw_ver >> 32),
- (u16) ((mdev->dev->caps.fw_ver >> 16) & 0xffff),
- (u16) (mdev->dev->caps.fw_ver & 0xffff));
- strncpy(drvinfo->bus_info, pci_name(mdev->dev->pdev), 32);
- drvinfo->n_stats = 0;
- drvinfo->regdump_len = 0;
- drvinfo->eedump_len = 0;
-}
-
-static const char main_strings[][ETH_GSTRING_LEN] = {
- "rx_packets", "tx_packets", "rx_bytes", "tx_bytes", "rx_errors",
- "tx_errors", "rx_dropped", "tx_dropped", "multicast", "collisions",
- "rx_length_errors", "rx_over_errors", "rx_crc_errors",
- "rx_frame_errors", "rx_fifo_errors", "rx_missed_errors",
- "tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors",
- "tx_heartbeat_errors", "tx_window_errors",
-
- /* port statistics */
- "tso_packets",
- "queue_stopped", "wake_queue", "tx_timeout", "rx_alloc_failed",
- "rx_csum_good", "rx_csum_none", "tx_chksum_offload",
-
- /* packet statistics */
- "broadcast", "rx_prio_0", "rx_prio_1", "rx_prio_2", "rx_prio_3",
- "rx_prio_4", "rx_prio_5", "rx_prio_6", "rx_prio_7", "tx_prio_0",
- "tx_prio_1", "tx_prio_2", "tx_prio_3", "tx_prio_4", "tx_prio_5",
- "tx_prio_6", "tx_prio_7",
-};
-#define NUM_MAIN_STATS 21
-#define NUM_ALL_STATS (NUM_MAIN_STATS + NUM_PORT_STATS + NUM_PKT_STATS + NUM_PERF_STATS)
-
-static const char mlx4_en_test_names[][ETH_GSTRING_LEN]= {
- "Interupt Test",
- "Link Test",
- "Speed Test",
- "Register Test",
- "Loopback Test",
-};
-
-static u32 mlx4_en_get_msglevel(struct net_device *dev)
-{
- return ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable;
-}
-
-static void mlx4_en_set_msglevel(struct net_device *dev, u32 val)
-{
- ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable = val;
-}
-
-static void mlx4_en_get_wol(struct net_device *netdev,
- struct ethtool_wolinfo *wol)
-{
- struct mlx4_en_priv *priv = netdev_priv(netdev);
- int err = 0;
- u64 config = 0;
-
- if (!(priv->mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_WOL)) {
- wol->supported = 0;
- wol->wolopts = 0;
- return;
- }
-
- err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
- if (err) {
- en_err(priv, "Failed to get WoL information\n");
- return;
- }
-
- if (config & MLX4_EN_WOL_MAGIC)
- wol->supported = WAKE_MAGIC;
- else
- wol->supported = 0;
-
- if (config & MLX4_EN_WOL_ENABLED)
- wol->wolopts = WAKE_MAGIC;
- else
- wol->wolopts = 0;
-}
-
-static int mlx4_en_set_wol(struct net_device *netdev,
- struct ethtool_wolinfo *wol)
-{
- struct mlx4_en_priv *priv = netdev_priv(netdev);
- u64 config = 0;
- int err = 0;
-
- if (!(priv->mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_WOL))
- return -EOPNOTSUPP;
-
- if (wol->supported & ~WAKE_MAGIC)
- return -EINVAL;
-
- err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
- if (err) {
- en_err(priv, "Failed to get WoL info, unable to modify\n");
- return err;
- }
-
- if (wol->wolopts & WAKE_MAGIC) {
- config |= MLX4_EN_WOL_DO_MODIFY | MLX4_EN_WOL_ENABLED |
- MLX4_EN_WOL_MAGIC;
- } else {
- config &= ~(MLX4_EN_WOL_ENABLED | MLX4_EN_WOL_MAGIC);
- config |= MLX4_EN_WOL_DO_MODIFY;
- }
-
- err = mlx4_wol_write(priv->mdev->dev, config, priv->port);
- if (err)
- en_err(priv, "Failed to set WoL information\n");
-
- return err;
-}
-
-static int mlx4_en_get_sset_count(struct net_device *dev, int sset)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
-
- switch (sset) {
- case ETH_SS_STATS:
- return NUM_ALL_STATS +
- (priv->tx_ring_num + priv->rx_ring_num) * 2;
- case ETH_SS_TEST:
- return MLX4_EN_NUM_SELF_TEST - !(priv->mdev->dev->caps.flags
- & MLX4_DEV_CAP_FLAG_UC_LOOPBACK) * 2;
- default:
- return -EOPNOTSUPP;
- }
-}
-
-static void mlx4_en_get_ethtool_stats(struct net_device *dev,
- struct ethtool_stats *stats, uint64_t *data)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
- int index = 0;
- int i;
-
- spin_lock_bh(&priv->stats_lock);
-
- for (i = 0; i < NUM_MAIN_STATS; i++)
- data[index++] = ((unsigned long *) &priv->stats)[i];
- for (i = 0; i < NUM_PORT_STATS; i++)
- data[index++] = ((unsigned long *) &priv->port_stats)[i];
- for (i = 0; i < priv->tx_ring_num; i++) {
- data[index++] = priv->tx_ring[i].packets;
- data[index++] = priv->tx_ring[i].bytes;
- }
- for (i = 0; i < priv->rx_ring_num; i++) {
- data[index++] = priv->rx_ring[i].packets;
- data[index++] = priv->rx_ring[i].bytes;
- }
- for (i = 0; i < NUM_PKT_STATS; i++)
- data[index++] = ((unsigned long *) &priv->pkstats)[i];
- spin_unlock_bh(&priv->stats_lock);
-
-}
-
-static void mlx4_en_self_test(struct net_device *dev,
- struct ethtool_test *etest, u64 *buf)
-{
- mlx4_en_ex_selftest(dev, &etest->flags, buf);
-}
-
-static void mlx4_en_get_strings(struct net_device *dev,
- uint32_t stringset, uint8_t *data)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
- int index = 0;
- int i;
-
- switch (stringset) {
- case ETH_SS_TEST:
- for (i = 0; i < MLX4_EN_NUM_SELF_TEST - 2; i++)
- strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
- if (priv->mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UC_LOOPBACK)
- for (; i < MLX4_EN_NUM_SELF_TEST; i++)
- strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
- break;
-
- case ETH_SS_STATS:
- /* Add main counters */
- for (i = 0; i < NUM_MAIN_STATS; i++)
- strcpy(data + (index++) * ETH_GSTRING_LEN, main_strings[i]);
- for (i = 0; i< NUM_PORT_STATS; i++)
- strcpy(data + (index++) * ETH_GSTRING_LEN,
- main_strings[i + NUM_MAIN_STATS]);
- for (i = 0; i < priv->tx_ring_num; i++) {
- sprintf(data + (index++) * ETH_GSTRING_LEN,
- "tx%d_packets", i);
- sprintf(data + (index++) * ETH_GSTRING_LEN,
- "tx%d_bytes", i);
- }
- for (i = 0; i < priv->rx_ring_num; i++) {
- sprintf(data + (index++) * ETH_GSTRING_LEN,
- "rx%d_packets", i);
- sprintf(data + (index++) * ETH_GSTRING_LEN,
- "rx%d_bytes", i);
- }
- for (i = 0; i< NUM_PKT_STATS; i++)
- strcpy(data + (index++) * ETH_GSTRING_LEN,
- main_strings[i + NUM_MAIN_STATS + NUM_PORT_STATS]);
- break;
- }
-}
-
-static int mlx4_en_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
- int trans_type;
-
- cmd->autoneg = AUTONEG_DISABLE;
- cmd->supported = SUPPORTED_10000baseT_Full;
- cmd->advertising = ADVERTISED_10000baseT_Full;
-
- if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
- return -ENOMEM;
-
- trans_type = priv->port_state.transciver;
- if (netif_carrier_ok(dev)) {
- ethtool_cmd_speed_set(cmd, priv->port_state.link_speed);
- cmd->duplex = DUPLEX_FULL;
- } else {
- ethtool_cmd_speed_set(cmd, -1);
- cmd->duplex = -1;
- }
-
- if (trans_type > 0 && trans_type <= 0xC) {
- cmd->port = PORT_FIBRE;
- cmd->transceiver = XCVR_EXTERNAL;
- cmd->supported |= SUPPORTED_FIBRE;
- cmd->advertising |= ADVERTISED_FIBRE;
- } else if (trans_type == 0x80 || trans_type == 0) {
- cmd->port = PORT_TP;
- cmd->transceiver = XCVR_INTERNAL;
- cmd->supported |= SUPPORTED_TP;
- cmd->advertising |= ADVERTISED_TP;
- } else {
- cmd->port = -1;
- cmd->transceiver = -1;
- }
- return 0;
-}
-
-static int mlx4_en_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
- if ((cmd->autoneg == AUTONEG_ENABLE) ||
- (ethtool_cmd_speed(cmd) != SPEED_10000) ||
- (cmd->duplex != DUPLEX_FULL))
- return -EINVAL;
-
- /* Nothing to change */
- return 0;
-}
-
-static int mlx4_en_get_coalesce(struct net_device *dev,
- struct ethtool_coalesce *coal)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
-
- coal->tx_coalesce_usecs = 0;
- coal->tx_max_coalesced_frames = 0;
- coal->rx_coalesce_usecs = priv->rx_usecs;
- coal->rx_max_coalesced_frames = priv->rx_frames;
-
- coal->pkt_rate_low = priv->pkt_rate_low;
- coal->rx_coalesce_usecs_low = priv->rx_usecs_low;
- coal->pkt_rate_high = priv->pkt_rate_high;
- coal->rx_coalesce_usecs_high = priv->rx_usecs_high;
- coal->rate_sample_interval = priv->sample_interval;
- coal->use_adaptive_rx_coalesce = priv->adaptive_rx_coal;
- return 0;
-}
-
-static int mlx4_en_set_coalesce(struct net_device *dev,
- struct ethtool_coalesce *coal)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
- int err, i;
-
- priv->rx_frames = (coal->rx_max_coalesced_frames ==
- MLX4_EN_AUTO_CONF) ?
- MLX4_EN_RX_COAL_TARGET :
- coal->rx_max_coalesced_frames;
- priv->rx_usecs = (coal->rx_coalesce_usecs ==
- MLX4_EN_AUTO_CONF) ?
- MLX4_EN_RX_COAL_TIME :
- coal->rx_coalesce_usecs;
-
- /* Set adaptive coalescing params */
- priv->pkt_rate_low = coal->pkt_rate_low;
- priv->rx_usecs_low = coal->rx_coalesce_usecs_low;
- priv->pkt_rate_high = coal->pkt_rate_high;
- priv->rx_usecs_high = coal->rx_coalesce_usecs_high;
- priv->sample_interval = coal->rate_sample_interval;
- priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce;
- priv->last_moder_time = MLX4_EN_AUTO_CONF;
- if (priv->adaptive_rx_coal)
- return 0;
-
- for (i = 0; i < priv->rx_ring_num; i++) {
- priv->rx_cq[i].moder_cnt = priv->rx_frames;
- priv->rx_cq[i].moder_time = priv->rx_usecs;
- err = mlx4_en_set_cq_moder(priv, &priv->rx_cq[i]);
- if (err)
- return err;
- }
- return 0;
-}
-
-static int mlx4_en_set_pauseparam(struct net_device *dev,
- struct ethtool_pauseparam *pause)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
- struct mlx4_en_dev *mdev = priv->mdev;
- int err;
-
- priv->prof->tx_pause = pause->tx_pause != 0;
- priv->prof->rx_pause = pause->rx_pause != 0;
- err = mlx4_SET_PORT_general(mdev->dev, priv->port,
- priv->rx_skb_size + ETH_FCS_LEN,
- priv->prof->tx_pause,
- priv->prof->tx_ppp,
- priv->prof->rx_pause,
- priv->prof->rx_ppp);
- if (err)
- en_err(priv, "Failed setting pause params\n");
-
- return err;
-}
-
-static void mlx4_en_get_pauseparam(struct net_device *dev,
- struct ethtool_pauseparam *pause)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
-
- pause->tx_pause = priv->prof->tx_pause;
- pause->rx_pause = priv->prof->rx_pause;
-}
-
-static int mlx4_en_set_ringparam(struct net_device *dev,
- struct ethtool_ringparam *param)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
- struct mlx4_en_dev *mdev = priv->mdev;
- u32 rx_size, tx_size;
- int port_up = 0;
- int err = 0;
-
- if (param->rx_jumbo_pending || param->rx_mini_pending)
- return -EINVAL;
-
- rx_size = roundup_pow_of_two(param->rx_pending);
- rx_size = max_t(u32, rx_size, MLX4_EN_MIN_RX_SIZE);
- rx_size = min_t(u32, rx_size, MLX4_EN_MAX_RX_SIZE);
- tx_size = roundup_pow_of_two(param->tx_pending);
- tx_size = max_t(u32, tx_size, MLX4_EN_MIN_TX_SIZE);
- tx_size = min_t(u32, tx_size, MLX4_EN_MAX_TX_SIZE);
-
- if (rx_size == (priv->port_up ? priv->rx_ring[0].actual_size :
- priv->rx_ring[0].size) &&
- tx_size == priv->tx_ring[0].size)
- return 0;
-
- mutex_lock(&mdev->state_lock);
- if (priv->port_up) {
- port_up = 1;
- mlx4_en_stop_port(dev);
- }
-
- mlx4_en_free_resources(priv, true);
-
- priv->prof->tx_ring_size = tx_size;
- priv->prof->rx_ring_size = rx_size;
-
- err = mlx4_en_alloc_resources(priv);
- if (err) {
- en_err(priv, "Failed reallocating port resources\n");
- goto out;
- }
- if (port_up) {
- err = mlx4_en_start_port(dev);
- if (err)
- en_err(priv, "Failed starting port\n");
- }
-
-out:
- mutex_unlock(&mdev->state_lock);
- return err;
-}
-
-static void mlx4_en_get_ringparam(struct net_device *dev,
- struct ethtool_ringparam *param)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
-
- memset(param, 0, sizeof(*param));
- param->rx_max_pending = MLX4_EN_MAX_RX_SIZE;
- param->tx_max_pending = MLX4_EN_MAX_TX_SIZE;
- param->rx_pending = priv->port_up ?
- priv->rx_ring[0].actual_size : priv->rx_ring[0].size;
- param->tx_pending = priv->tx_ring[0].size;
-}
-
-const struct ethtool_ops mlx4_en_ethtool_ops = {
- .get_drvinfo = mlx4_en_get_drvinfo,
- .get_settings = mlx4_en_get_settings,
- .set_settings = mlx4_en_set_settings,
- .get_link = ethtool_op_get_link,
- .get_strings = mlx4_en_get_strings,
- .get_sset_count = mlx4_en_get_sset_count,
- .get_ethtool_stats = mlx4_en_get_ethtool_stats,
- .self_test = mlx4_en_self_test,
- .get_wol = mlx4_en_get_wol,
- .set_wol = mlx4_en_set_wol,
- .get_msglevel = mlx4_en_get_msglevel,
- .set_msglevel = mlx4_en_set_msglevel,
- .get_coalesce = mlx4_en_get_coalesce,
- .set_coalesce = mlx4_en_set_coalesce,
- .get_pauseparam = mlx4_en_get_pauseparam,
- .set_pauseparam = mlx4_en_set_pauseparam,
- .get_ringparam = mlx4_en_get_ringparam,
- .set_ringparam = mlx4_en_set_ringparam,
-};
-
-
-
-
-
+++ /dev/null
-/*
- * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- *
- */
-
-#include <linux/cpumask.h>
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/netdevice.h>
-#include <linux/slab.h>
-
-#include <linux/mlx4/driver.h>
-#include <linux/mlx4/device.h>
-#include <linux/mlx4/cmd.h>
-
-#include "mlx4_en.h"
-
-MODULE_AUTHOR("Liran Liss, Yevgeny Petrilin");
-MODULE_DESCRIPTION("Mellanox ConnectX HCA Ethernet driver");
-MODULE_LICENSE("Dual BSD/GPL");
-MODULE_VERSION(DRV_VERSION " ("DRV_RELDATE")");
-
-static const char mlx4_en_version[] =
- DRV_NAME ": Mellanox ConnectX HCA Ethernet driver v"
- DRV_VERSION " (" DRV_RELDATE ")\n";
-
-#define MLX4_EN_PARM_INT(X, def_val, desc) \
- static unsigned int X = def_val;\
- module_param(X , uint, 0444); \
- MODULE_PARM_DESC(X, desc);
-
-
-/*
- * Device scope module parameters
- */
-
-
-/* Enable RSS TCP traffic */
-MLX4_EN_PARM_INT(tcp_rss, 1,
- "Enable RSS for incomming TCP traffic or disabled (0)");
-/* Enable RSS UDP traffic */
-MLX4_EN_PARM_INT(udp_rss, 1,
- "Enable RSS for incomming UDP traffic or disabled (0)");
-
-/* Priority pausing */
-MLX4_EN_PARM_INT(pfctx, 0, "Priority based Flow Control policy on TX[7:0]."
- " Per priority bit mask");
-MLX4_EN_PARM_INT(pfcrx, 0, "Priority based Flow Control policy on RX[7:0]."
- " Per priority bit mask");
-
-int en_print(const char *level, const struct mlx4_en_priv *priv,
- const char *format, ...)
-{
- va_list args;
- struct va_format vaf;
- int i;
-
- va_start(args, format);
-
- vaf.fmt = format;
- vaf.va = &args;
- if (priv->registered)
- i = printk("%s%s: %s: %pV",
- level, DRV_NAME, priv->dev->name, &vaf);
- else
- i = printk("%s%s: %s: Port %d: %pV",
- level, DRV_NAME, dev_name(&priv->mdev->pdev->dev),
- priv->port, &vaf);
- va_end(args);
-
- return i;
-}
-
-static int mlx4_en_get_profile(struct mlx4_en_dev *mdev)
-{
- struct mlx4_en_profile *params = &mdev->profile;
- int i;
-
- params->tcp_rss = tcp_rss;
- params->udp_rss = udp_rss;
- if (params->udp_rss && !(mdev->dev->caps.flags
- & MLX4_DEV_CAP_FLAG_UDP_RSS)) {
- mlx4_warn(mdev, "UDP RSS is not supported on this device.\n");
- params->udp_rss = 0;
- }
- for (i = 1; i <= MLX4_MAX_PORTS; i++) {
- params->prof[i].rx_pause = 1;
- params->prof[i].rx_ppp = pfcrx;
- params->prof[i].tx_pause = 1;
- params->prof[i].tx_ppp = pfctx;
- params->prof[i].tx_ring_size = MLX4_EN_DEF_TX_RING_SIZE;
- params->prof[i].rx_ring_size = MLX4_EN_DEF_RX_RING_SIZE;
- params->prof[i].tx_ring_num = MLX4_EN_NUM_TX_RINGS +
- (!!pfcrx) * MLX4_EN_NUM_PPP_RINGS;
- }
-
- return 0;
-}
-
-static void *mlx4_en_get_netdev(struct mlx4_dev *dev, void *ctx, u8 port)
-{
- struct mlx4_en_dev *endev = ctx;
-
- return endev->pndev[port];
-}
-
-static void mlx4_en_event(struct mlx4_dev *dev, void *endev_ptr,
- enum mlx4_dev_event event, int port)
-{
- struct mlx4_en_dev *mdev = (struct mlx4_en_dev *) endev_ptr;
- struct mlx4_en_priv *priv;
-
- if (!mdev->pndev[port])
- return;
-
- priv = netdev_priv(mdev->pndev[port]);
- switch (event) {
- case MLX4_DEV_EVENT_PORT_UP:
- case MLX4_DEV_EVENT_PORT_DOWN:
- /* To prevent races, we poll the link state in a separate
- task rather than changing it here */
- priv->link_state = event;
- queue_work(mdev->workqueue, &priv->linkstate_task);
- break;
-
- case MLX4_DEV_EVENT_CATASTROPHIC_ERROR:
- mlx4_err(mdev, "Internal error detected, restarting device\n");
- break;
-
- default:
- mlx4_warn(mdev, "Unhandled event: %d\n", event);
- }
-}
-
-static void mlx4_en_remove(struct mlx4_dev *dev, void *endev_ptr)
-{
- struct mlx4_en_dev *mdev = endev_ptr;
- int i;
-
- mutex_lock(&mdev->state_lock);
- mdev->device_up = false;
- mutex_unlock(&mdev->state_lock);
-
- mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH)
- if (mdev->pndev[i])
- mlx4_en_destroy_netdev(mdev->pndev[i]);
-
- flush_workqueue(mdev->workqueue);
- destroy_workqueue(mdev->workqueue);
- mlx4_mr_free(dev, &mdev->mr);
- mlx4_uar_free(dev, &mdev->priv_uar);
- mlx4_pd_free(dev, mdev->priv_pdn);
- kfree(mdev);
-}
-
-static void *mlx4_en_add(struct mlx4_dev *dev)
-{
- struct mlx4_en_dev *mdev;
- int i;
- int err;
-
- printk_once(KERN_INFO "%s", mlx4_en_version);
-
- mdev = kzalloc(sizeof *mdev, GFP_KERNEL);
- if (!mdev) {
- dev_err(&dev->pdev->dev, "Device struct alloc failed, "
- "aborting.\n");
- err = -ENOMEM;
- goto err_free_res;
- }
-
- if (mlx4_pd_alloc(dev, &mdev->priv_pdn))
- goto err_free_dev;
-
- if (mlx4_uar_alloc(dev, &mdev->priv_uar))
- goto err_pd;
-
- mdev->uar_map = ioremap((phys_addr_t) mdev->priv_uar.pfn << PAGE_SHIFT,
- PAGE_SIZE);
- if (!mdev->uar_map)
- goto err_uar;
- spin_lock_init(&mdev->uar_lock);
-
- mdev->dev = dev;
- mdev->dma_device = &(dev->pdev->dev);
- mdev->pdev = dev->pdev;
- mdev->device_up = false;
-
- mdev->LSO_support = !!(dev->caps.flags & (1 << 15));
- if (!mdev->LSO_support)
- mlx4_warn(mdev, "LSO not supported, please upgrade to later "
- "FW version to enable LSO\n");
-
- if (mlx4_mr_alloc(mdev->dev, mdev->priv_pdn, 0, ~0ull,
- MLX4_PERM_LOCAL_WRITE | MLX4_PERM_LOCAL_READ,
- 0, 0, &mdev->mr)) {
- mlx4_err(mdev, "Failed allocating memory region\n");
- goto err_uar;
- }
- if (mlx4_mr_enable(mdev->dev, &mdev->mr)) {
- mlx4_err(mdev, "Failed enabling memory region\n");
- goto err_mr;
- }
-
- /* Build device profile according to supplied module parameters */
- err = mlx4_en_get_profile(mdev);
- if (err) {
- mlx4_err(mdev, "Bad module parameters, aborting.\n");
- goto err_mr;
- }
-
- /* Configure which ports to start according to module parameters */
- mdev->port_cnt = 0;
- mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH)
- mdev->port_cnt++;
-
- mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH) {
- if (!dev->caps.comp_pool) {
- mdev->profile.prof[i].rx_ring_num =
- rounddown_pow_of_two(max_t(int, MIN_RX_RINGS,
- min_t(int,
- dev->caps.num_comp_vectors,
- MAX_RX_RINGS)));
- } else {
- mdev->profile.prof[i].rx_ring_num = rounddown_pow_of_two(
- min_t(int, dev->caps.comp_pool/
- dev->caps.num_ports - 1 , MAX_MSIX_P_PORT - 1));
- }
- }
-
- /* Create our own workqueue for reset/multicast tasks
- * Note: we cannot use the shared workqueue because of deadlocks caused
- * by the rtnl lock */
- mdev->workqueue = create_singlethread_workqueue("mlx4_en");
- if (!mdev->workqueue) {
- err = -ENOMEM;
- goto err_mr;
- }
-
- /* At this stage all non-port specific tasks are complete:
- * mark the card state as up */
- mutex_init(&mdev->state_lock);
- mdev->device_up = true;
-
- /* Setup ports */
-
- /* Create a netdev for each port */
- mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH) {
- mlx4_info(mdev, "Activating port:%d\n", i);
- if (mlx4_en_init_netdev(mdev, i, &mdev->profile.prof[i]))
- mdev->pndev[i] = NULL;
- }
- return mdev;
-
-err_mr:
- mlx4_mr_free(dev, &mdev->mr);
-err_uar:
- mlx4_uar_free(dev, &mdev->priv_uar);
-err_pd:
- mlx4_pd_free(dev, mdev->priv_pdn);
-err_free_dev:
- kfree(mdev);
-err_free_res:
- return NULL;
-}
-
-static struct mlx4_interface mlx4_en_interface = {
- .add = mlx4_en_add,
- .remove = mlx4_en_remove,
- .event = mlx4_en_event,
- .get_dev = mlx4_en_get_netdev,
- .protocol = MLX4_PROT_ETH,
-};
-
-static int __init mlx4_en_init(void)
-{
- return mlx4_register_interface(&mlx4_en_interface);
-}
-
-static void __exit mlx4_en_cleanup(void)
-{
- mlx4_unregister_interface(&mlx4_en_interface);
-}
-
-module_init(mlx4_en_init);
-module_exit(mlx4_en_cleanup);
-
+++ /dev/null
-/*
- * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- *
- */
-
-#include <linux/etherdevice.h>
-#include <linux/tcp.h>
-#include <linux/if_vlan.h>
-#include <linux/delay.h>
-#include <linux/slab.h>
-
-#include <linux/mlx4/driver.h>
-#include <linux/mlx4/device.h>
-#include <linux/mlx4/cmd.h>
-#include <linux/mlx4/cq.h>
-
-#include "mlx4_en.h"
-#include "en_port.h"
-
-static void mlx4_en_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
- struct mlx4_en_dev *mdev = priv->mdev;
- int err;
- int idx;
-
- en_dbg(HW, priv, "adding VLAN:%d\n", vid);
-
- set_bit(vid, priv->active_vlans);
-
- /* Add VID to port VLAN filter */
- mutex_lock(&mdev->state_lock);
- if (mdev->device_up && priv->port_up) {
- err = mlx4_SET_VLAN_FLTR(mdev->dev, priv);
- if (err)
- en_err(priv, "Failed configuring VLAN filter\n");
- }
- if (mlx4_register_vlan(mdev->dev, priv->port, vid, &idx))
- en_err(priv, "failed adding vlan %d\n", vid);
- mutex_unlock(&mdev->state_lock);
-
-}
-
-static void mlx4_en_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
- struct mlx4_en_dev *mdev = priv->mdev;
- int err;
- int idx;
-
- en_dbg(HW, priv, "Killing VID:%d\n", vid);
-
- clear_bit(vid, priv->active_vlans);
-
- /* Remove VID from port VLAN filter */
- mutex_lock(&mdev->state_lock);
- if (!mlx4_find_cached_vlan(mdev->dev, priv->port, vid, &idx))
- mlx4_unregister_vlan(mdev->dev, priv->port, idx);
- else
- en_err(priv, "could not find vid %d in cache\n", vid);
-
- if (mdev->device_up && priv->port_up) {
- err = mlx4_SET_VLAN_FLTR(mdev->dev, priv);
- if (err)
- en_err(priv, "Failed configuring VLAN filter\n");
- }
- mutex_unlock(&mdev->state_lock);
-}
-
-u64 mlx4_en_mac_to_u64(u8 *addr)
-{
- u64 mac = 0;
- int i;
-
- for (i = 0; i < ETH_ALEN; i++) {
- mac <<= 8;
- mac |= addr[i];
- }
- return mac;
-}
-
-static int mlx4_en_set_mac(struct net_device *dev, void *addr)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
- struct mlx4_en_dev *mdev = priv->mdev;
- struct sockaddr *saddr = addr;
-
- if (!is_valid_ether_addr(saddr->sa_data))
- return -EADDRNOTAVAIL;
-
- memcpy(dev->dev_addr, saddr->sa_data, ETH_ALEN);
- priv->mac = mlx4_en_mac_to_u64(dev->dev_addr);
- queue_work(mdev->workqueue, &priv->mac_task);
- return 0;
-}
-
-static void mlx4_en_do_set_mac(struct work_struct *work)
-{
- struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
- mac_task);
- struct mlx4_en_dev *mdev = priv->mdev;
- int err = 0;
-
- mutex_lock(&mdev->state_lock);
- if (priv->port_up) {
- /* Remove old MAC and insert the new one */
- err = mlx4_replace_mac(mdev->dev, priv->port,
- priv->base_qpn, priv->mac, 0);
- if (err)
- en_err(priv, "Failed changing HW MAC address\n");
- } else
- en_dbg(HW, priv, "Port is down while "
- "registering mac, exiting...\n");
-
- mutex_unlock(&mdev->state_lock);
-}
-
-static void mlx4_en_clear_list(struct net_device *dev)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
-
- kfree(priv->mc_addrs);
- priv->mc_addrs_cnt = 0;
-}
-
-static void mlx4_en_cache_mclist(struct net_device *dev)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
- struct netdev_hw_addr *ha;
- char *mc_addrs;
- int mc_addrs_cnt = netdev_mc_count(dev);
- int i;
-
- mc_addrs = kmalloc(mc_addrs_cnt * ETH_ALEN, GFP_ATOMIC);
- if (!mc_addrs) {
- en_err(priv, "failed to allocate multicast list\n");
- return;
- }
- i = 0;
- netdev_for_each_mc_addr(ha, dev)
- memcpy(mc_addrs + i++ * ETH_ALEN, ha->addr, ETH_ALEN);
- priv->mc_addrs = mc_addrs;
- priv->mc_addrs_cnt = mc_addrs_cnt;
-}
-
-
-static void mlx4_en_set_multicast(struct net_device *dev)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
-
- if (!priv->port_up)
- return;
-
- queue_work(priv->mdev->workqueue, &priv->mcast_task);
-}
-
-static void mlx4_en_do_set_multicast(struct work_struct *work)
-{
- struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
- mcast_task);
- struct mlx4_en_dev *mdev = priv->mdev;
- struct net_device *dev = priv->dev;
- u64 mcast_addr = 0;
- u8 mc_list[16] = {0};
- int err;
-
- mutex_lock(&mdev->state_lock);
- if (!mdev->device_up) {
- en_dbg(HW, priv, "Card is not up, "
- "ignoring multicast change.\n");
- goto out;
- }
- if (!priv->port_up) {
- en_dbg(HW, priv, "Port is down, "
- "ignoring multicast change.\n");
- goto out;
- }
-
- /*
- * Promsicuous mode: disable all filters
- */
-
- if (dev->flags & IFF_PROMISC) {
- if (!(priv->flags & MLX4_EN_FLAG_PROMISC)) {
- if (netif_msg_rx_status(priv))
- en_warn(priv, "Entering promiscuous mode\n");
- priv->flags |= MLX4_EN_FLAG_PROMISC;
-
- /* Enable promiscouos mode */
- if (!(mdev->dev->caps.flags &
- MLX4_DEV_CAP_FLAG_VEP_UC_STEER))
- err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port,
- priv->base_qpn, 1);
- else
- err = mlx4_unicast_promisc_add(mdev->dev, priv->base_qpn,
- priv->port);
- if (err)
- en_err(priv, "Failed enabling "
- "promiscuous mode\n");
-
- /* Disable port multicast filter (unconditionally) */
- err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
- 0, MLX4_MCAST_DISABLE);
- if (err)
- en_err(priv, "Failed disabling "
- "multicast filter\n");
-
- /* Add the default qp number as multicast promisc */
- if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) {
- err = mlx4_multicast_promisc_add(mdev->dev, priv->base_qpn,
- priv->port);
- if (err)
- en_err(priv, "Failed entering multicast promisc mode\n");
- priv->flags |= MLX4_EN_FLAG_MC_PROMISC;
- }
-
- /* Disable port VLAN filter */
- err = mlx4_SET_VLAN_FLTR(mdev->dev, priv);
- if (err)
- en_err(priv, "Failed disabling VLAN filter\n");
- }
- goto out;
- }
-
- /*
- * Not in promiscuous mode
- */
-
- if (priv->flags & MLX4_EN_FLAG_PROMISC) {
- if (netif_msg_rx_status(priv))
- en_warn(priv, "Leaving promiscuous mode\n");
- priv->flags &= ~MLX4_EN_FLAG_PROMISC;
-
- /* Disable promiscouos mode */
- if (!(mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER))
- err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port,
- priv->base_qpn, 0);
- else
- err = mlx4_unicast_promisc_remove(mdev->dev, priv->base_qpn,
- priv->port);
- if (err)
- en_err(priv, "Failed disabling promiscuous mode\n");
-
- /* Disable Multicast promisc */
- if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) {
- err = mlx4_multicast_promisc_remove(mdev->dev, priv->base_qpn,
- priv->port);
- if (err)
- en_err(priv, "Failed disabling multicast promiscuous mode\n");
- priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC;
- }
-
- /* Enable port VLAN filter */
- err = mlx4_SET_VLAN_FLTR(mdev->dev, priv);
- if (err)
- en_err(priv, "Failed enabling VLAN filter\n");
- }
-
- /* Enable/disable the multicast filter according to IFF_ALLMULTI */
- if (dev->flags & IFF_ALLMULTI) {
- err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
- 0, MLX4_MCAST_DISABLE);
- if (err)
- en_err(priv, "Failed disabling multicast filter\n");
-
- /* Add the default qp number as multicast promisc */
- if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) {
- err = mlx4_multicast_promisc_add(mdev->dev, priv->base_qpn,
- priv->port);
- if (err)
- en_err(priv, "Failed entering multicast promisc mode\n");
- priv->flags |= MLX4_EN_FLAG_MC_PROMISC;
- }
- } else {
- int i;
- /* Disable Multicast promisc */
- if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) {
- err = mlx4_multicast_promisc_remove(mdev->dev, priv->base_qpn,
- priv->port);
- if (err)
- en_err(priv, "Failed disabling multicast promiscuous mode\n");
- priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC;
- }
-
- err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
- 0, MLX4_MCAST_DISABLE);
- if (err)
- en_err(priv, "Failed disabling multicast filter\n");
-
- /* Detach our qp from all the multicast addresses */
- for (i = 0; i < priv->mc_addrs_cnt; i++) {
- memcpy(&mc_list[10], priv->mc_addrs + i * ETH_ALEN, ETH_ALEN);
- mc_list[5] = priv->port;
- mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp,
- mc_list, MLX4_PROT_ETH);
- }
- /* Flush mcast filter and init it with broadcast address */
- mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, ETH_BCAST,
- 1, MLX4_MCAST_CONFIG);
-
- /* Update multicast list - we cache all addresses so they won't
- * change while HW is updated holding the command semaphor */
- netif_tx_lock_bh(dev);
- mlx4_en_cache_mclist(dev);
- netif_tx_unlock_bh(dev);
- for (i = 0; i < priv->mc_addrs_cnt; i++) {
- mcast_addr =
- mlx4_en_mac_to_u64(priv->mc_addrs + i * ETH_ALEN);
- memcpy(&mc_list[10], priv->mc_addrs + i * ETH_ALEN, ETH_ALEN);
- mc_list[5] = priv->port;
- mlx4_multicast_attach(mdev->dev, &priv->rss_map.indir_qp,
- mc_list, 0, MLX4_PROT_ETH);
- mlx4_SET_MCAST_FLTR(mdev->dev, priv->port,
- mcast_addr, 0, MLX4_MCAST_CONFIG);
- }
- err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
- 0, MLX4_MCAST_ENABLE);
- if (err)
- en_err(priv, "Failed enabling multicast filter\n");
- }
-out:
- mutex_unlock(&mdev->state_lock);
-}
-
-#ifdef CONFIG_NET_POLL_CONTROLLER
-static void mlx4_en_netpoll(struct net_device *dev)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
- struct mlx4_en_cq *cq;
- unsigned long flags;
- int i;
-
- for (i = 0; i < priv->rx_ring_num; i++) {
- cq = &priv->rx_cq[i];
- spin_lock_irqsave(&cq->lock, flags);
- napi_synchronize(&cq->napi);
- mlx4_en_process_rx_cq(dev, cq, 0);
- spin_unlock_irqrestore(&cq->lock, flags);
- }
-}
-#endif
-
-static void mlx4_en_tx_timeout(struct net_device *dev)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
- struct mlx4_en_dev *mdev = priv->mdev;
-
- if (netif_msg_timer(priv))
- en_warn(priv, "Tx timeout called on port:%d\n", priv->port);
-
- priv->port_stats.tx_timeout++;
- en_dbg(DRV, priv, "Scheduling watchdog\n");
- queue_work(mdev->workqueue, &priv->watchdog_task);
-}
-
-
-static struct net_device_stats *mlx4_en_get_stats(struct net_device *dev)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
-
- spin_lock_bh(&priv->stats_lock);
- memcpy(&priv->ret_stats, &priv->stats, sizeof(priv->stats));
- spin_unlock_bh(&priv->stats_lock);
-
- return &priv->ret_stats;
-}
-
-static void mlx4_en_set_default_moderation(struct mlx4_en_priv *priv)
-{
- struct mlx4_en_cq *cq;
- int i;
-
- /* If we haven't received a specific coalescing setting
- * (module param), we set the moderation parameters as follows:
- * - moder_cnt is set to the number of mtu sized packets to
- * satisfy our coelsing target.
- * - moder_time is set to a fixed value.
- */
- priv->rx_frames = MLX4_EN_RX_COAL_TARGET;
- priv->rx_usecs = MLX4_EN_RX_COAL_TIME;
- en_dbg(INTR, priv, "Default coalesing params for mtu:%d - "
- "rx_frames:%d rx_usecs:%d\n",
- priv->dev->mtu, priv->rx_frames, priv->rx_usecs);
-
- /* Setup cq moderation params */
- for (i = 0; i < priv->rx_ring_num; i++) {
- cq = &priv->rx_cq[i];
- cq->moder_cnt = priv->rx_frames;
- cq->moder_time = priv->rx_usecs;
- }
-
- for (i = 0; i < priv->tx_ring_num; i++) {
- cq = &priv->tx_cq[i];
- cq->moder_cnt = MLX4_EN_TX_COAL_PKTS;
- cq->moder_time = MLX4_EN_TX_COAL_TIME;
- }
-
- /* Reset auto-moderation params */
- priv->pkt_rate_low = MLX4_EN_RX_RATE_LOW;
- priv->rx_usecs_low = MLX4_EN_RX_COAL_TIME_LOW;
- priv->pkt_rate_high = MLX4_EN_RX_RATE_HIGH;
- priv->rx_usecs_high = MLX4_EN_RX_COAL_TIME_HIGH;
- priv->sample_interval = MLX4_EN_SAMPLE_INTERVAL;
- priv->adaptive_rx_coal = 1;
- priv->last_moder_time = MLX4_EN_AUTO_CONF;
- priv->last_moder_jiffies = 0;
- priv->last_moder_packets = 0;
- priv->last_moder_tx_packets = 0;
- priv->last_moder_bytes = 0;
-}
-
-static void mlx4_en_auto_moderation(struct mlx4_en_priv *priv)
-{
- unsigned long period = (unsigned long) (jiffies - priv->last_moder_jiffies);
- struct mlx4_en_cq *cq;
- unsigned long packets;
- unsigned long rate;
- unsigned long avg_pkt_size;
- unsigned long rx_packets;
- unsigned long rx_bytes;
- unsigned long tx_packets;
- unsigned long tx_pkt_diff;
- unsigned long rx_pkt_diff;
- int moder_time;
- int i, err;
-
- if (!priv->adaptive_rx_coal || period < priv->sample_interval * HZ)
- return;
-
- spin_lock_bh(&priv->stats_lock);
- rx_packets = priv->stats.rx_packets;
- rx_bytes = priv->stats.rx_bytes;
- tx_packets = priv->stats.tx_packets;
- spin_unlock_bh(&priv->stats_lock);
-
- if (!priv->last_moder_jiffies || !period)
- goto out;
-
- tx_pkt_diff = ((unsigned long) (tx_packets -
- priv->last_moder_tx_packets));
- rx_pkt_diff = ((unsigned long) (rx_packets -
- priv->last_moder_packets));
- packets = max(tx_pkt_diff, rx_pkt_diff);
- rate = packets * HZ / period;
- avg_pkt_size = packets ? ((unsigned long) (rx_bytes -
- priv->last_moder_bytes)) / packets : 0;
-
- /* Apply auto-moderation only when packet rate exceeds a rate that
- * it matters */
- if (rate > MLX4_EN_RX_RATE_THRESH && avg_pkt_size > MLX4_EN_AVG_PKT_SMALL) {
- /* If tx and rx packet rates are not balanced, assume that
- * traffic is mainly BW bound and apply maximum moderation.
- * Otherwise, moderate according to packet rate */
- if (2 * tx_pkt_diff > 3 * rx_pkt_diff ||
- 2 * rx_pkt_diff > 3 * tx_pkt_diff) {
- moder_time = priv->rx_usecs_high;
- } else {
- if (rate < priv->pkt_rate_low)
- moder_time = priv->rx_usecs_low;
- else if (rate > priv->pkt_rate_high)
- moder_time = priv->rx_usecs_high;
- else
- moder_time = (rate - priv->pkt_rate_low) *
- (priv->rx_usecs_high - priv->rx_usecs_low) /
- (priv->pkt_rate_high - priv->pkt_rate_low) +
- priv->rx_usecs_low;
- }
- } else {
- moder_time = priv->rx_usecs_low;
- }
-
- en_dbg(INTR, priv, "tx rate:%lu rx_rate:%lu\n",
- tx_pkt_diff * HZ / period, rx_pkt_diff * HZ / period);
-
- en_dbg(INTR, priv, "Rx moder_time changed from:%d to %d period:%lu "
- "[jiff] packets:%lu avg_pkt_size:%lu rate:%lu [p/s])\n",
- priv->last_moder_time, moder_time, period, packets,
- avg_pkt_size, rate);
-
- if (moder_time != priv->last_moder_time) {
- priv->last_moder_time = moder_time;
- for (i = 0; i < priv->rx_ring_num; i++) {
- cq = &priv->rx_cq[i];
- cq->moder_time = moder_time;
- err = mlx4_en_set_cq_moder(priv, cq);
- if (err) {
- en_err(priv, "Failed modifying moderation for cq:%d\n", i);
- break;
- }
- }
- }
-
-out:
- priv->last_moder_packets = rx_packets;
- priv->last_moder_tx_packets = tx_packets;
- priv->last_moder_bytes = rx_bytes;
- priv->last_moder_jiffies = jiffies;
-}
-
-static void mlx4_en_do_get_stats(struct work_struct *work)
-{
- struct delayed_work *delay = to_delayed_work(work);
- struct mlx4_en_priv *priv = container_of(delay, struct mlx4_en_priv,
- stats_task);
- struct mlx4_en_dev *mdev = priv->mdev;
- int err;
-
- err = mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 0);
- if (err)
- en_dbg(HW, priv, "Could not update stats\n");
-
- mutex_lock(&mdev->state_lock);
- if (mdev->device_up) {
- if (priv->port_up)
- mlx4_en_auto_moderation(priv);
-
- queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY);
- }
- if (mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port]) {
- queue_work(mdev->workqueue, &priv->mac_task);
- mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port] = 0;
- }
- mutex_unlock(&mdev->state_lock);
-}
-
-static void mlx4_en_linkstate(struct work_struct *work)
-{
- struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
- linkstate_task);
- struct mlx4_en_dev *mdev = priv->mdev;
- int linkstate = priv->link_state;
-
- mutex_lock(&mdev->state_lock);
- /* If observable port state changed set carrier state and
- * report to system log */
- if (priv->last_link_state != linkstate) {
- if (linkstate == MLX4_DEV_EVENT_PORT_DOWN) {
- en_info(priv, "Link Down\n");
- netif_carrier_off(priv->dev);
- } else {
- en_info(priv, "Link Up\n");
- netif_carrier_on(priv->dev);
- }
- }
- priv->last_link_state = linkstate;
- mutex_unlock(&mdev->state_lock);
-}
-
-
-int mlx4_en_start_port(struct net_device *dev)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
- struct mlx4_en_dev *mdev = priv->mdev;
- struct mlx4_en_cq *cq;
- struct mlx4_en_tx_ring *tx_ring;
- int rx_index = 0;
- int tx_index = 0;
- int err = 0;
- int i;
- int j;
- u8 mc_list[16] = {0};
- char name[32];
-
- if (priv->port_up) {
- en_dbg(DRV, priv, "start port called while port already up\n");
- return 0;
- }
-
- /* Calculate Rx buf size */
- dev->mtu = min(dev->mtu, priv->max_mtu);
- mlx4_en_calc_rx_buf(dev);
- en_dbg(DRV, priv, "Rx buf size:%d\n", priv->rx_skb_size);
-
- /* Configure rx cq's and rings */
- err = mlx4_en_activate_rx_rings(priv);
- if (err) {
- en_err(priv, "Failed to activate RX rings\n");
- return err;
- }
- for (i = 0; i < priv->rx_ring_num; i++) {
- cq = &priv->rx_cq[i];
-
- err = mlx4_en_activate_cq(priv, cq);
- if (err) {
- en_err(priv, "Failed activating Rx CQ\n");
- goto cq_err;
- }
- for (j = 0; j < cq->size; j++)
- cq->buf[j].owner_sr_opcode = MLX4_CQE_OWNER_MASK;
- err = mlx4_en_set_cq_moder(priv, cq);
- if (err) {
- en_err(priv, "Failed setting cq moderation parameters");
- mlx4_en_deactivate_cq(priv, cq);
- goto cq_err;
- }
- mlx4_en_arm_cq(priv, cq);
- priv->rx_ring[i].cqn = cq->mcq.cqn;
- ++rx_index;
- }
-
- /* Set port mac number */
- en_dbg(DRV, priv, "Setting mac for port %d\n", priv->port);
- err = mlx4_register_mac(mdev->dev, priv->port,
- priv->mac, &priv->base_qpn, 0);
- if (err) {
- en_err(priv, "Failed setting port mac\n");
- goto cq_err;
- }
- mdev->mac_removed[priv->port] = 0;
-
- err = mlx4_en_config_rss_steer(priv);
- if (err) {
- en_err(priv, "Failed configuring rss steering\n");
- goto mac_err;
- }
-
- if (mdev->dev->caps.comp_pool && !priv->tx_vector) {
- sprintf(name , "%s-tx", priv->dev->name);
- if (mlx4_assign_eq(mdev->dev , name, &priv->tx_vector)) {
- mlx4_warn(mdev, "Failed Assigning an EQ to "
- "%s_tx ,Falling back to legacy "
- "EQ's\n", priv->dev->name);
- }
- }
- /* Configure tx cq's and rings */
- for (i = 0; i < priv->tx_ring_num; i++) {
- /* Configure cq */
- cq = &priv->tx_cq[i];
- cq->vector = priv->tx_vector;
- err = mlx4_en_activate_cq(priv, cq);
- if (err) {
- en_err(priv, "Failed allocating Tx CQ\n");
- goto tx_err;
- }
- err = mlx4_en_set_cq_moder(priv, cq);
- if (err) {
- en_err(priv, "Failed setting cq moderation parameters");
- mlx4_en_deactivate_cq(priv, cq);
- goto tx_err;
- }
- en_dbg(DRV, priv, "Resetting index of collapsed CQ:%d to -1\n", i);
- cq->buf->wqe_index = cpu_to_be16(0xffff);
-
- /* Configure ring */
- tx_ring = &priv->tx_ring[i];
- err = mlx4_en_activate_tx_ring(priv, tx_ring, cq->mcq.cqn);
- if (err) {
- en_err(priv, "Failed allocating Tx ring\n");
- mlx4_en_deactivate_cq(priv, cq);
- goto tx_err;
- }
- /* Set initial ownership of all Tx TXBBs to SW (1) */
- for (j = 0; j < tx_ring->buf_size; j += STAMP_STRIDE)
- *((u32 *) (tx_ring->buf + j)) = 0xffffffff;
- ++tx_index;
- }
-
- /* Configure port */
- err = mlx4_SET_PORT_general(mdev->dev, priv->port,
- priv->rx_skb_size + ETH_FCS_LEN,
- priv->prof->tx_pause,
- priv->prof->tx_ppp,
- priv->prof->rx_pause,
- priv->prof->rx_ppp);
- if (err) {
- en_err(priv, "Failed setting port general configurations "
- "for port %d, with error %d\n", priv->port, err);
- goto tx_err;
- }
- /* Set default qp number */
- err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, priv->base_qpn, 0);
- if (err) {
- en_err(priv, "Failed setting default qp numbers\n");
- goto tx_err;
- }
-
- /* Init port */
- en_dbg(HW, priv, "Initializing port\n");
- err = mlx4_INIT_PORT(mdev->dev, priv->port);
- if (err) {
- en_err(priv, "Failed Initializing port\n");
- goto tx_err;
- }
-
- /* Attach rx QP to bradcast address */
- memset(&mc_list[10], 0xff, ETH_ALEN);
- mc_list[5] = priv->port;
- if (mlx4_multicast_attach(mdev->dev, &priv->rss_map.indir_qp, mc_list,
- 0, MLX4_PROT_ETH))
- mlx4_warn(mdev, "Failed Attaching Broadcast\n");
-
- /* Must redo promiscuous mode setup. */
- priv->flags &= ~(MLX4_EN_FLAG_PROMISC | MLX4_EN_FLAG_MC_PROMISC);
-
- /* Schedule multicast task to populate multicast list */
- queue_work(mdev->workqueue, &priv->mcast_task);
-
- priv->port_up = true;
- netif_tx_start_all_queues(dev);
- return 0;
-
-tx_err:
- while (tx_index--) {
- mlx4_en_deactivate_tx_ring(priv, &priv->tx_ring[tx_index]);
- mlx4_en_deactivate_cq(priv, &priv->tx_cq[tx_index]);
- }
-
- mlx4_en_release_rss_steer(priv);
-mac_err:
- mlx4_unregister_mac(mdev->dev, priv->port, priv->base_qpn);
-cq_err:
- while (rx_index--)
- mlx4_en_deactivate_cq(priv, &priv->rx_cq[rx_index]);
- for (i = 0; i < priv->rx_ring_num; i++)
- mlx4_en_deactivate_rx_ring(priv, &priv->rx_ring[i]);
-
- return err; /* need to close devices */
-}
-
-
-void mlx4_en_stop_port(struct net_device *dev)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
- struct mlx4_en_dev *mdev = priv->mdev;
- int i;
- u8 mc_list[16] = {0};
-
- if (!priv->port_up) {
- en_dbg(DRV, priv, "stop port called while port already down\n");
- return;
- }
-
- /* Synchronize with tx routine */
- netif_tx_lock_bh(dev);
- netif_tx_stop_all_queues(dev);
- netif_tx_unlock_bh(dev);
-
- /* Set port as not active */
- priv->port_up = false;
-
- /* Detach All multicasts */
- memset(&mc_list[10], 0xff, ETH_ALEN);
- mc_list[5] = priv->port;
- mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp, mc_list,
- MLX4_PROT_ETH);
- for (i = 0; i < priv->mc_addrs_cnt; i++) {
- memcpy(&mc_list[10], priv->mc_addrs + i * ETH_ALEN, ETH_ALEN);
- mc_list[5] = priv->port;
- mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp,
- mc_list, MLX4_PROT_ETH);
- }
- mlx4_en_clear_list(dev);
- /* Flush multicast filter */
- mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 1, MLX4_MCAST_CONFIG);
-
- /* Unregister Mac address for the port */
- mlx4_unregister_mac(mdev->dev, priv->port, priv->base_qpn);
- mdev->mac_removed[priv->port] = 1;
-
- /* Free TX Rings */
- for (i = 0; i < priv->tx_ring_num; i++) {
- mlx4_en_deactivate_tx_ring(priv, &priv->tx_ring[i]);
- mlx4_en_deactivate_cq(priv, &priv->tx_cq[i]);
- }
- msleep(10);
-
- for (i = 0; i < priv->tx_ring_num; i++)
- mlx4_en_free_tx_buf(dev, &priv->tx_ring[i]);
-
- /* Free RSS qps */
- mlx4_en_release_rss_steer(priv);
-
- /* Free RX Rings */
- for (i = 0; i < priv->rx_ring_num; i++) {
- mlx4_en_deactivate_rx_ring(priv, &priv->rx_ring[i]);
- while (test_bit(NAPI_STATE_SCHED, &priv->rx_cq[i].napi.state))
- msleep(1);
- mlx4_en_deactivate_cq(priv, &priv->rx_cq[i]);
- }
-
- /* close port*/
- mlx4_CLOSE_PORT(mdev->dev, priv->port);
-}
-
-static void mlx4_en_restart(struct work_struct *work)
-{
- struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
- watchdog_task);
- struct mlx4_en_dev *mdev = priv->mdev;
- struct net_device *dev = priv->dev;
-
- en_dbg(DRV, priv, "Watchdog task called for port %d\n", priv->port);
-
- mutex_lock(&mdev->state_lock);
- if (priv->port_up) {
- mlx4_en_stop_port(dev);
- if (mlx4_en_start_port(dev))
- en_err(priv, "Failed restarting port %d\n", priv->port);
- }
- mutex_unlock(&mdev->state_lock);
-}
-
-
-static int mlx4_en_open(struct net_device *dev)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
- struct mlx4_en_dev *mdev = priv->mdev;
- int i;
- int err = 0;
-
- mutex_lock(&mdev->state_lock);
-
- if (!mdev->device_up) {
- en_err(priv, "Cannot open - device down/disabled\n");
- err = -EBUSY;
- goto out;
- }
-
- /* Reset HW statistics and performance counters */
- if (mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 1))
- en_dbg(HW, priv, "Failed dumping statistics\n");
-
- memset(&priv->stats, 0, sizeof(priv->stats));
- memset(&priv->pstats, 0, sizeof(priv->pstats));
-
- for (i = 0; i < priv->tx_ring_num; i++) {
- priv->tx_ring[i].bytes = 0;
- priv->tx_ring[i].packets = 0;
- }
- for (i = 0; i < priv->rx_ring_num; i++) {
- priv->rx_ring[i].bytes = 0;
- priv->rx_ring[i].packets = 0;
- }
-
- err = mlx4_en_start_port(dev);
- if (err)
- en_err(priv, "Failed starting port:%d\n", priv->port);
-
-out:
- mutex_unlock(&mdev->state_lock);
- return err;
-}
-
-
-static int mlx4_en_close(struct net_device *dev)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
- struct mlx4_en_dev *mdev = priv->mdev;
-
- en_dbg(IFDOWN, priv, "Close port called\n");
-
- mutex_lock(&mdev->state_lock);
-
- mlx4_en_stop_port(dev);
- netif_carrier_off(dev);
-
- mutex_unlock(&mdev->state_lock);
- return 0;
-}
-
-void mlx4_en_free_resources(struct mlx4_en_priv *priv, bool reserve_vectors)
-{
- int i;
-
- for (i = 0; i < priv->tx_ring_num; i++) {
- if (priv->tx_ring[i].tx_info)
- mlx4_en_destroy_tx_ring(priv, &priv->tx_ring[i]);
- if (priv->tx_cq[i].buf)
- mlx4_en_destroy_cq(priv, &priv->tx_cq[i], reserve_vectors);
- }
-
- for (i = 0; i < priv->rx_ring_num; i++) {
- if (priv->rx_ring[i].rx_info)
- mlx4_en_destroy_rx_ring(priv, &priv->rx_ring[i]);
- if (priv->rx_cq[i].buf)
- mlx4_en_destroy_cq(priv, &priv->rx_cq[i], reserve_vectors);
- }
-}
-
-int mlx4_en_alloc_resources(struct mlx4_en_priv *priv)
-{
- struct mlx4_en_port_profile *prof = priv->prof;
- int i;
- int base_tx_qpn, err;
-
- err = mlx4_qp_reserve_range(priv->mdev->dev, priv->tx_ring_num, 256, &base_tx_qpn);
- if (err) {
- en_err(priv, "failed reserving range for TX rings\n");
- return err;
- }
-
- /* Create tx Rings */
- for (i = 0; i < priv->tx_ring_num; i++) {
- if (mlx4_en_create_cq(priv, &priv->tx_cq[i],
- prof->tx_ring_size, i, TX))
- goto err;
-
- if (mlx4_en_create_tx_ring(priv, &priv->tx_ring[i], base_tx_qpn + i,
- prof->tx_ring_size, TXBB_SIZE))
- goto err;
- }
-
- /* Create rx Rings */
- for (i = 0; i < priv->rx_ring_num; i++) {
- if (mlx4_en_create_cq(priv, &priv->rx_cq[i],
- prof->rx_ring_size, i, RX))
- goto err;
-
- if (mlx4_en_create_rx_ring(priv, &priv->rx_ring[i],
- prof->rx_ring_size, priv->stride))
- goto err;
- }
-
- return 0;
-
-err:
- en_err(priv, "Failed to allocate NIC resources\n");
- mlx4_qp_release_range(priv->mdev->dev, base_tx_qpn, priv->tx_ring_num);
- return -ENOMEM;
-}
-
-
-void mlx4_en_destroy_netdev(struct net_device *dev)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
- struct mlx4_en_dev *mdev = priv->mdev;
-
- en_dbg(DRV, priv, "Destroying netdev on port:%d\n", priv->port);
-
- /* Unregister device - this will close the port if it was up */
- if (priv->registered)
- unregister_netdev(dev);
-
- if (priv->allocated)
- mlx4_free_hwq_res(mdev->dev, &priv->res, MLX4_EN_PAGE_SIZE);
-
- cancel_delayed_work(&priv->stats_task);
- /* flush any pending task for this netdev */
- flush_workqueue(mdev->workqueue);
-
- /* Detach the netdev so tasks would not attempt to access it */
- mutex_lock(&mdev->state_lock);
- mdev->pndev[priv->port] = NULL;
- mutex_unlock(&mdev->state_lock);
-
- mlx4_en_free_resources(priv, false);
- free_netdev(dev);
-}
-
-static int mlx4_en_change_mtu(struct net_device *dev, int new_mtu)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
- struct mlx4_en_dev *mdev = priv->mdev;
- int err = 0;
-
- en_dbg(DRV, priv, "Change MTU called - current:%d new:%d\n",
- dev->mtu, new_mtu);
-
- if ((new_mtu < MLX4_EN_MIN_MTU) || (new_mtu > priv->max_mtu)) {
- en_err(priv, "Bad MTU size:%d.\n", new_mtu);
- return -EPERM;
- }
- dev->mtu = new_mtu;
-
- if (netif_running(dev)) {
- mutex_lock(&mdev->state_lock);
- if (!mdev->device_up) {
- /* NIC is probably restarting - let watchdog task reset
- * the port */
- en_dbg(DRV, priv, "Change MTU called with card down!?\n");
- } else {
- mlx4_en_stop_port(dev);
- err = mlx4_en_start_port(dev);
- if (err) {
- en_err(priv, "Failed restarting port:%d\n",
- priv->port);
- queue_work(mdev->workqueue, &priv->watchdog_task);
- }
- }
- mutex_unlock(&mdev->state_lock);
- }
- return 0;
-}
-
-static const struct net_device_ops mlx4_netdev_ops = {
- .ndo_open = mlx4_en_open,
- .ndo_stop = mlx4_en_close,
- .ndo_start_xmit = mlx4_en_xmit,
- .ndo_select_queue = mlx4_en_select_queue,
- .ndo_get_stats = mlx4_en_get_stats,
- .ndo_set_multicast_list = mlx4_en_set_multicast,
- .ndo_set_mac_address = mlx4_en_set_mac,
- .ndo_validate_addr = eth_validate_addr,
- .ndo_change_mtu = mlx4_en_change_mtu,
- .ndo_tx_timeout = mlx4_en_tx_timeout,
- .ndo_vlan_rx_add_vid = mlx4_en_vlan_rx_add_vid,
- .ndo_vlan_rx_kill_vid = mlx4_en_vlan_rx_kill_vid,
-#ifdef CONFIG_NET_POLL_CONTROLLER
- .ndo_poll_controller = mlx4_en_netpoll,
-#endif
-};
-
-int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
- struct mlx4_en_port_profile *prof)
-{
- struct net_device *dev;
- struct mlx4_en_priv *priv;
- int i;
- int err;
-
- dev = alloc_etherdev_mqs(sizeof(struct mlx4_en_priv),
- prof->tx_ring_num, prof->rx_ring_num);
- if (dev == NULL) {
- mlx4_err(mdev, "Net device allocation failed\n");
- return -ENOMEM;
- }
-
- SET_NETDEV_DEV(dev, &mdev->dev->pdev->dev);
- dev->dev_id = port - 1;
-
- /*
- * Initialize driver private data
- */
-
- priv = netdev_priv(dev);
- memset(priv, 0, sizeof(struct mlx4_en_priv));
- priv->dev = dev;
- priv->mdev = mdev;
- priv->prof = prof;
- priv->port = port;
- priv->port_up = false;
- priv->flags = prof->flags;
- priv->tx_ring_num = prof->tx_ring_num;
- priv->rx_ring_num = prof->rx_ring_num;
- priv->mac_index = -1;
- priv->msg_enable = MLX4_EN_MSG_LEVEL;
- spin_lock_init(&priv->stats_lock);
- INIT_WORK(&priv->mcast_task, mlx4_en_do_set_multicast);
- INIT_WORK(&priv->mac_task, mlx4_en_do_set_mac);
- INIT_WORK(&priv->watchdog_task, mlx4_en_restart);
- INIT_WORK(&priv->linkstate_task, mlx4_en_linkstate);
- INIT_DELAYED_WORK(&priv->stats_task, mlx4_en_do_get_stats);
-
- /* Query for default mac and max mtu */
- priv->max_mtu = mdev->dev->caps.eth_mtu_cap[priv->port];
- priv->mac = mdev->dev->caps.def_mac[priv->port];
- if (ILLEGAL_MAC(priv->mac)) {
- en_err(priv, "Port: %d, invalid mac burned: 0x%llx, quiting\n",
- priv->port, priv->mac);
- err = -EINVAL;
- goto out;
- }
-
- priv->stride = roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc) +
- DS_SIZE * MLX4_EN_MAX_RX_FRAGS);
- err = mlx4_en_alloc_resources(priv);
- if (err)
- goto out;
-
- /* Allocate page for receive rings */
- err = mlx4_alloc_hwq_res(mdev->dev, &priv->res,
- MLX4_EN_PAGE_SIZE, MLX4_EN_PAGE_SIZE);
- if (err) {
- en_err(priv, "Failed to allocate page for rx qps\n");
- goto out;
- }
- priv->allocated = 1;
-
- /*
- * Initialize netdev entry points
- */
- dev->netdev_ops = &mlx4_netdev_ops;
- dev->watchdog_timeo = MLX4_EN_WATCHDOG_TIMEOUT;
- netif_set_real_num_tx_queues(dev, priv->tx_ring_num);
- netif_set_real_num_rx_queues(dev, priv->rx_ring_num);
-
- SET_ETHTOOL_OPS(dev, &mlx4_en_ethtool_ops);
-
- /* Set defualt MAC */
- dev->addr_len = ETH_ALEN;
- for (i = 0; i < ETH_ALEN; i++) {
- dev->dev_addr[ETH_ALEN - 1 - i] = (u8) (priv->mac >> (8 * i));
- dev->perm_addr[ETH_ALEN - 1 - i] = (u8) (priv->mac >> (8 * i));
- }
-
- /*
- * Set driver features
- */
- dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
- if (mdev->LSO_support)
- dev->hw_features |= NETIF_F_TSO | NETIF_F_TSO6;
-
- dev->vlan_features = dev->hw_features;
-
- dev->hw_features |= NETIF_F_RXCSUM;
- dev->features = dev->hw_features | NETIF_F_HIGHDMA |
- NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX |
- NETIF_F_HW_VLAN_FILTER;
-
- mdev->pndev[port] = dev;
-
- netif_carrier_off(dev);
- err = register_netdev(dev);
- if (err) {
- en_err(priv, "Netdev registration failed for port %d\n", port);
- goto out;
- }
-
- en_warn(priv, "Using %d TX rings\n", prof->tx_ring_num);
- en_warn(priv, "Using %d RX rings\n", prof->rx_ring_num);
-
- /* Configure port */
- err = mlx4_SET_PORT_general(mdev->dev, priv->port,
- MLX4_EN_MIN_MTU,
- 0, 0, 0, 0);
- if (err) {
- en_err(priv, "Failed setting port general configurations "
- "for port %d, with error %d\n", priv->port, err);
- goto out;
- }
-
- /* Init port */
- en_warn(priv, "Initializing port\n");
- err = mlx4_INIT_PORT(mdev->dev, priv->port);
- if (err) {
- en_err(priv, "Failed Initializing port\n");
- goto out;
- }
- priv->registered = 1;
- mlx4_en_set_default_moderation(priv);
- queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY);
- return 0;
-
-out:
- mlx4_en_destroy_netdev(dev);
- return err;
-}
-
+++ /dev/null
-/*
- * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- *
- */
-
-
-#include <linux/if_vlan.h>
-
-#include <linux/mlx4/device.h>
-#include <linux/mlx4/cmd.h>
-
-#include "en_port.h"
-#include "mlx4_en.h"
-
-
-int mlx4_SET_MCAST_FLTR(struct mlx4_dev *dev, u8 port,
- u64 mac, u64 clear, u8 mode)
-{
- return mlx4_cmd(dev, (mac | (clear << 63)), port, mode,
- MLX4_CMD_SET_MCAST_FLTR, MLX4_CMD_TIME_CLASS_B);
-}
-
-int mlx4_SET_VLAN_FLTR(struct mlx4_dev *dev, struct mlx4_en_priv *priv)
-{
- struct mlx4_cmd_mailbox *mailbox;
- struct mlx4_set_vlan_fltr_mbox *filter;
- int i;
- int j;
- int index = 0;
- u32 entry;
- int err = 0;
-
- mailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(mailbox))
- return PTR_ERR(mailbox);
-
- filter = mailbox->buf;
- memset(filter, 0, sizeof(*filter));
- for (i = VLAN_FLTR_SIZE - 1; i >= 0; i--) {
- entry = 0;
- for (j = 0; j < 32; j++)
- if (test_bit(index++, priv->active_vlans))
- entry |= 1 << j;
- filter->entry[i] = cpu_to_be32(entry);
- }
- err = mlx4_cmd(dev, mailbox->dma, priv->port, 0, MLX4_CMD_SET_VLAN_FLTR,
- MLX4_CMD_TIME_CLASS_B);
- mlx4_free_cmd_mailbox(dev, mailbox);
- return err;
-}
-
-
-int mlx4_SET_PORT_general(struct mlx4_dev *dev, u8 port, int mtu,
- u8 pptx, u8 pfctx, u8 pprx, u8 pfcrx)
-{
- struct mlx4_cmd_mailbox *mailbox;
- struct mlx4_set_port_general_context *context;
- int err;
- u32 in_mod;
-
- mailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(mailbox))
- return PTR_ERR(mailbox);
- context = mailbox->buf;
- memset(context, 0, sizeof *context);
-
- context->flags = SET_PORT_GEN_ALL_VALID;
- context->mtu = cpu_to_be16(mtu);
- context->pptx = (pptx * (!pfctx)) << 7;
- context->pfctx = pfctx;
- context->pprx = (pprx * (!pfcrx)) << 7;
- context->pfcrx = pfcrx;
-
- in_mod = MLX4_SET_PORT_GENERAL << 8 | port;
- err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT,
- MLX4_CMD_TIME_CLASS_B);
-
- mlx4_free_cmd_mailbox(dev, mailbox);
- return err;
-}
-
-int mlx4_SET_PORT_qpn_calc(struct mlx4_dev *dev, u8 port, u32 base_qpn,
- u8 promisc)
-{
- struct mlx4_cmd_mailbox *mailbox;
- struct mlx4_set_port_rqp_calc_context *context;
- int err;
- u32 in_mod;
- u32 m_promisc = (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER) ?
- MCAST_DIRECT : MCAST_DEFAULT;
-
- if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER &&
- dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER)
- return 0;
-
- mailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(mailbox))
- return PTR_ERR(mailbox);
- context = mailbox->buf;
- memset(context, 0, sizeof *context);
-
- context->base_qpn = cpu_to_be32(base_qpn);
- context->n_mac = 0x2;
- context->promisc = cpu_to_be32(promisc << SET_PORT_PROMISC_SHIFT |
- base_qpn);
- context->mcast = cpu_to_be32(m_promisc << SET_PORT_MC_PROMISC_SHIFT |
- base_qpn);
- context->intra_no_vlan = 0;
- context->no_vlan = MLX4_NO_VLAN_IDX;
- context->intra_vlan_miss = 0;
- context->vlan_miss = MLX4_VLAN_MISS_IDX;
-
- in_mod = MLX4_SET_PORT_RQP_CALC << 8 | port;
- err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT,
- MLX4_CMD_TIME_CLASS_B);
-
- mlx4_free_cmd_mailbox(dev, mailbox);
- return err;
-}
-
-int mlx4_en_QUERY_PORT(struct mlx4_en_dev *mdev, u8 port)
-{
- struct mlx4_en_query_port_context *qport_context;
- struct mlx4_en_priv *priv = netdev_priv(mdev->pndev[port]);
- struct mlx4_en_port_state *state = &priv->port_state;
- struct mlx4_cmd_mailbox *mailbox;
- int err;
-
- mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
- if (IS_ERR(mailbox))
- return PTR_ERR(mailbox);
- memset(mailbox->buf, 0, sizeof(*qport_context));
- err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, port, 0,
- MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B);
- if (err)
- goto out;
- qport_context = mailbox->buf;
-
- /* This command is always accessed from Ethtool context
- * already synchronized, no need in locking */
- state->link_state = !!(qport_context->link_up & MLX4_EN_LINK_UP_MASK);
- if ((qport_context->link_speed & MLX4_EN_SPEED_MASK) ==
- MLX4_EN_1G_SPEED)
- state->link_speed = 1000;
- else
- state->link_speed = 10000;
- state->transciver = qport_context->transceiver;
-
-out:
- mlx4_free_cmd_mailbox(mdev->dev, mailbox);
- return err;
-}
-
-int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset)
-{
- struct mlx4_en_stat_out_mbox *mlx4_en_stats;
- struct mlx4_en_priv *priv = netdev_priv(mdev->pndev[port]);
- struct net_device_stats *stats = &priv->stats;
- struct mlx4_cmd_mailbox *mailbox;
- u64 in_mod = reset << 8 | port;
- int err;
- int i;
-
- mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
- if (IS_ERR(mailbox))
- return PTR_ERR(mailbox);
- memset(mailbox->buf, 0, sizeof(*mlx4_en_stats));
- err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, in_mod, 0,
- MLX4_CMD_DUMP_ETH_STATS, MLX4_CMD_TIME_CLASS_B);
- if (err)
- goto out;
-
- mlx4_en_stats = mailbox->buf;
-
- spin_lock_bh(&priv->stats_lock);
-
- stats->rx_packets = 0;
- stats->rx_bytes = 0;
- for (i = 0; i < priv->rx_ring_num; i++) {
- stats->rx_packets += priv->rx_ring[i].packets;
- stats->rx_bytes += priv->rx_ring[i].bytes;
- }
- stats->tx_packets = 0;
- stats->tx_bytes = 0;
- for (i = 0; i < priv->tx_ring_num; i++) {
- stats->tx_packets += priv->tx_ring[i].packets;
- stats->tx_bytes += priv->tx_ring[i].bytes;
- }
-
- stats->rx_errors = be64_to_cpu(mlx4_en_stats->PCS) +
- be32_to_cpu(mlx4_en_stats->RdropLength) +
- be32_to_cpu(mlx4_en_stats->RJBBR) +
- be32_to_cpu(mlx4_en_stats->RCRC) +
- be32_to_cpu(mlx4_en_stats->RRUNT);
- stats->tx_errors = be32_to_cpu(mlx4_en_stats->TDROP);
- stats->multicast = be64_to_cpu(mlx4_en_stats->MCAST_prio_0) +
- be64_to_cpu(mlx4_en_stats->MCAST_prio_1) +
- be64_to_cpu(mlx4_en_stats->MCAST_prio_2) +
- be64_to_cpu(mlx4_en_stats->MCAST_prio_3) +
- be64_to_cpu(mlx4_en_stats->MCAST_prio_4) +
- be64_to_cpu(mlx4_en_stats->MCAST_prio_5) +
- be64_to_cpu(mlx4_en_stats->MCAST_prio_6) +
- be64_to_cpu(mlx4_en_stats->MCAST_prio_7) +
- be64_to_cpu(mlx4_en_stats->MCAST_novlan);
- stats->collisions = 0;
- stats->rx_length_errors = be32_to_cpu(mlx4_en_stats->RdropLength);
- stats->rx_over_errors = be32_to_cpu(mlx4_en_stats->RdropOvflw);
- stats->rx_crc_errors = be32_to_cpu(mlx4_en_stats->RCRC);
- stats->rx_frame_errors = 0;
- stats->rx_fifo_errors = be32_to_cpu(mlx4_en_stats->RdropOvflw);
- stats->rx_missed_errors = be32_to_cpu(mlx4_en_stats->RdropOvflw);
- stats->tx_aborted_errors = 0;
- stats->tx_carrier_errors = 0;
- stats->tx_fifo_errors = 0;
- stats->tx_heartbeat_errors = 0;
- stats->tx_window_errors = 0;
-
- priv->pkstats.broadcast =
- be64_to_cpu(mlx4_en_stats->RBCAST_prio_0) +
- be64_to_cpu(mlx4_en_stats->RBCAST_prio_1) +
- be64_to_cpu(mlx4_en_stats->RBCAST_prio_2) +
- be64_to_cpu(mlx4_en_stats->RBCAST_prio_3) +
- be64_to_cpu(mlx4_en_stats->RBCAST_prio_4) +
- be64_to_cpu(mlx4_en_stats->RBCAST_prio_5) +
- be64_to_cpu(mlx4_en_stats->RBCAST_prio_6) +
- be64_to_cpu(mlx4_en_stats->RBCAST_prio_7) +
- be64_to_cpu(mlx4_en_stats->RBCAST_novlan);
- priv->pkstats.rx_prio[0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_0);
- priv->pkstats.rx_prio[1] = be64_to_cpu(mlx4_en_stats->RTOT_prio_1);
- priv->pkstats.rx_prio[2] = be64_to_cpu(mlx4_en_stats->RTOT_prio_2);
- priv->pkstats.rx_prio[3] = be64_to_cpu(mlx4_en_stats->RTOT_prio_3);
- priv->pkstats.rx_prio[4] = be64_to_cpu(mlx4_en_stats->RTOT_prio_4);
- priv->pkstats.rx_prio[5] = be64_to_cpu(mlx4_en_stats->RTOT_prio_5);
- priv->pkstats.rx_prio[6] = be64_to_cpu(mlx4_en_stats->RTOT_prio_6);
- priv->pkstats.rx_prio[7] = be64_to_cpu(mlx4_en_stats->RTOT_prio_7);
- priv->pkstats.tx_prio[0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_0);
- priv->pkstats.tx_prio[1] = be64_to_cpu(mlx4_en_stats->TTOT_prio_1);
- priv->pkstats.tx_prio[2] = be64_to_cpu(mlx4_en_stats->TTOT_prio_2);
- priv->pkstats.tx_prio[3] = be64_to_cpu(mlx4_en_stats->TTOT_prio_3);
- priv->pkstats.tx_prio[4] = be64_to_cpu(mlx4_en_stats->TTOT_prio_4);
- priv->pkstats.tx_prio[5] = be64_to_cpu(mlx4_en_stats->TTOT_prio_5);
- priv->pkstats.tx_prio[6] = be64_to_cpu(mlx4_en_stats->TTOT_prio_6);
- priv->pkstats.tx_prio[7] = be64_to_cpu(mlx4_en_stats->TTOT_prio_7);
- spin_unlock_bh(&priv->stats_lock);
-
-out:
- mlx4_free_cmd_mailbox(mdev->dev, mailbox);
- return err;
-}
-
+++ /dev/null
-/*
- * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- *
- */
-
-#ifndef _MLX4_EN_PORT_H_
-#define _MLX4_EN_PORT_H_
-
-
-#define SET_PORT_GEN_ALL_VALID 0x7
-#define SET_PORT_PROMISC_SHIFT 31
-#define SET_PORT_MC_PROMISC_SHIFT 30
-
-enum {
- MLX4_CMD_SET_VLAN_FLTR = 0x47,
- MLX4_CMD_SET_MCAST_FLTR = 0x48,
- MLX4_CMD_DUMP_ETH_STATS = 0x49,
-};
-
-enum {
- MCAST_DIRECT_ONLY = 0,
- MCAST_DIRECT = 1,
- MCAST_DEFAULT = 2
-};
-
-struct mlx4_set_port_general_context {
- u8 reserved[3];
- u8 flags;
- u16 reserved2;
- __be16 mtu;
- u8 pptx;
- u8 pfctx;
- u16 reserved3;
- u8 pprx;
- u8 pfcrx;
- u16 reserved4;
-};
-
-struct mlx4_set_port_rqp_calc_context {
- __be32 base_qpn;
- u8 rererved;
- u8 n_mac;
- u8 n_vlan;
- u8 n_prio;
- u8 reserved2[3];
- u8 mac_miss;
- u8 intra_no_vlan;
- u8 no_vlan;
- u8 intra_vlan_miss;
- u8 vlan_miss;
- u8 reserved3[3];
- u8 no_vlan_prio;
- __be32 promisc;
- __be32 mcast;
-};
-
-#define VLAN_FLTR_SIZE 128
-struct mlx4_set_vlan_fltr_mbox {
- __be32 entry[VLAN_FLTR_SIZE];
-};
-
-
-enum {
- MLX4_MCAST_CONFIG = 0,
- MLX4_MCAST_DISABLE = 1,
- MLX4_MCAST_ENABLE = 2,
-};
-
-struct mlx4_en_query_port_context {
- u8 link_up;
-#define MLX4_EN_LINK_UP_MASK 0x80
- u8 reserved;
- __be16 mtu;
- u8 reserved2;
- u8 link_speed;
-#define MLX4_EN_SPEED_MASK 0x3
-#define MLX4_EN_1G_SPEED 0x2
- u16 reserved3[5];
- __be64 mac;
- u8 transceiver;
-};
-
-
-struct mlx4_en_stat_out_mbox {
- /* Received frames with a length of 64 octets */
- __be64 R64_prio_0;
- __be64 R64_prio_1;
- __be64 R64_prio_2;
- __be64 R64_prio_3;
- __be64 R64_prio_4;
- __be64 R64_prio_5;
- __be64 R64_prio_6;
- __be64 R64_prio_7;
- __be64 R64_novlan;
- /* Received frames with a length of 127 octets */
- __be64 R127_prio_0;
- __be64 R127_prio_1;
- __be64 R127_prio_2;
- __be64 R127_prio_3;
- __be64 R127_prio_4;
- __be64 R127_prio_5;
- __be64 R127_prio_6;
- __be64 R127_prio_7;
- __be64 R127_novlan;
- /* Received frames with a length of 255 octets */
- __be64 R255_prio_0;
- __be64 R255_prio_1;
- __be64 R255_prio_2;
- __be64 R255_prio_3;
- __be64 R255_prio_4;
- __be64 R255_prio_5;
- __be64 R255_prio_6;
- __be64 R255_prio_7;
- __be64 R255_novlan;
- /* Received frames with a length of 511 octets */
- __be64 R511_prio_0;
- __be64 R511_prio_1;
- __be64 R511_prio_2;
- __be64 R511_prio_3;
- __be64 R511_prio_4;
- __be64 R511_prio_5;
- __be64 R511_prio_6;
- __be64 R511_prio_7;
- __be64 R511_novlan;
- /* Received frames with a length of 1023 octets */
- __be64 R1023_prio_0;
- __be64 R1023_prio_1;
- __be64 R1023_prio_2;
- __be64 R1023_prio_3;
- __be64 R1023_prio_4;
- __be64 R1023_prio_5;
- __be64 R1023_prio_6;
- __be64 R1023_prio_7;
- __be64 R1023_novlan;
- /* Received frames with a length of 1518 octets */
- __be64 R1518_prio_0;
- __be64 R1518_prio_1;
- __be64 R1518_prio_2;
- __be64 R1518_prio_3;
- __be64 R1518_prio_4;
- __be64 R1518_prio_5;
- __be64 R1518_prio_6;
- __be64 R1518_prio_7;
- __be64 R1518_novlan;
- /* Received frames with a length of 1522 octets */
- __be64 R1522_prio_0;
- __be64 R1522_prio_1;
- __be64 R1522_prio_2;
- __be64 R1522_prio_3;
- __be64 R1522_prio_4;
- __be64 R1522_prio_5;
- __be64 R1522_prio_6;
- __be64 R1522_prio_7;
- __be64 R1522_novlan;
- /* Received frames with a length of 1548 octets */
- __be64 R1548_prio_0;
- __be64 R1548_prio_1;
- __be64 R1548_prio_2;
- __be64 R1548_prio_3;
- __be64 R1548_prio_4;
- __be64 R1548_prio_5;
- __be64 R1548_prio_6;
- __be64 R1548_prio_7;
- __be64 R1548_novlan;
- /* Received frames with a length of 1548 < octets < MTU */
- __be64 R2MTU_prio_0;
- __be64 R2MTU_prio_1;
- __be64 R2MTU_prio_2;
- __be64 R2MTU_prio_3;
- __be64 R2MTU_prio_4;
- __be64 R2MTU_prio_5;
- __be64 R2MTU_prio_6;
- __be64 R2MTU_prio_7;
- __be64 R2MTU_novlan;
- /* Received frames with a length of MTU< octets and good CRC */
- __be64 RGIANT_prio_0;
- __be64 RGIANT_prio_1;
- __be64 RGIANT_prio_2;
- __be64 RGIANT_prio_3;
- __be64 RGIANT_prio_4;
- __be64 RGIANT_prio_5;
- __be64 RGIANT_prio_6;
- __be64 RGIANT_prio_7;
- __be64 RGIANT_novlan;
- /* Received broadcast frames with good CRC */
- __be64 RBCAST_prio_0;
- __be64 RBCAST_prio_1;
- __be64 RBCAST_prio_2;
- __be64 RBCAST_prio_3;
- __be64 RBCAST_prio_4;
- __be64 RBCAST_prio_5;
- __be64 RBCAST_prio_6;
- __be64 RBCAST_prio_7;
- __be64 RBCAST_novlan;
- /* Received multicast frames with good CRC */
- __be64 MCAST_prio_0;
- __be64 MCAST_prio_1;
- __be64 MCAST_prio_2;
- __be64 MCAST_prio_3;
- __be64 MCAST_prio_4;
- __be64 MCAST_prio_5;
- __be64 MCAST_prio_6;
- __be64 MCAST_prio_7;
- __be64 MCAST_novlan;
- /* Received unicast not short or GIANT frames with good CRC */
- __be64 RTOTG_prio_0;
- __be64 RTOTG_prio_1;
- __be64 RTOTG_prio_2;
- __be64 RTOTG_prio_3;
- __be64 RTOTG_prio_4;
- __be64 RTOTG_prio_5;
- __be64 RTOTG_prio_6;
- __be64 RTOTG_prio_7;
- __be64 RTOTG_novlan;
-
- /* Count of total octets of received frames, includes framing characters */
- __be64 RTTLOCT_prio_0;
- /* Count of total octets of received frames, not including framing
- characters */
- __be64 RTTLOCT_NOFRM_prio_0;
- /* Count of Total number of octets received
- (only for frames without errors) */
- __be64 ROCT_prio_0;
-
- __be64 RTTLOCT_prio_1;
- __be64 RTTLOCT_NOFRM_prio_1;
- __be64 ROCT_prio_1;
-
- __be64 RTTLOCT_prio_2;
- __be64 RTTLOCT_NOFRM_prio_2;
- __be64 ROCT_prio_2;
-
- __be64 RTTLOCT_prio_3;
- __be64 RTTLOCT_NOFRM_prio_3;
- __be64 ROCT_prio_3;
-
- __be64 RTTLOCT_prio_4;
- __be64 RTTLOCT_NOFRM_prio_4;
- __be64 ROCT_prio_4;
-
- __be64 RTTLOCT_prio_5;
- __be64 RTTLOCT_NOFRM_prio_5;
- __be64 ROCT_prio_5;
-
- __be64 RTTLOCT_prio_6;
- __be64 RTTLOCT_NOFRM_prio_6;
- __be64 ROCT_prio_6;
-
- __be64 RTTLOCT_prio_7;
- __be64 RTTLOCT_NOFRM_prio_7;
- __be64 ROCT_prio_7;
-
- __be64 RTTLOCT_novlan;
- __be64 RTTLOCT_NOFRM_novlan;
- __be64 ROCT_novlan;
-
- /* Count of Total received frames including bad frames */
- __be64 RTOT_prio_0;
- /* Count of Total number of received frames with 802.1Q encapsulation */
- __be64 R1Q_prio_0;
- __be64 reserved1;
-
- __be64 RTOT_prio_1;
- __be64 R1Q_prio_1;
- __be64 reserved2;
-
- __be64 RTOT_prio_2;
- __be64 R1Q_prio_2;
- __be64 reserved3;
-
- __be64 RTOT_prio_3;
- __be64 R1Q_prio_3;
- __be64 reserved4;
-
- __be64 RTOT_prio_4;
- __be64 R1Q_prio_4;
- __be64 reserved5;
-
- __be64 RTOT_prio_5;
- __be64 R1Q_prio_5;
- __be64 reserved6;
-
- __be64 RTOT_prio_6;
- __be64 R1Q_prio_6;
- __be64 reserved7;
-
- __be64 RTOT_prio_7;
- __be64 R1Q_prio_7;
- __be64 reserved8;
-
- __be64 RTOT_novlan;
- __be64 R1Q_novlan;
- __be64 reserved9;
-
- /* Total number of Successfully Received Control Frames */
- __be64 RCNTL;
- __be64 reserved10;
- __be64 reserved11;
- __be64 reserved12;
- /* Count of received frames with a length/type field value between 46
- (42 for VLANtagged frames) and 1500 (also 1500 for VLAN-tagged frames),
- inclusive */
- __be64 RInRangeLengthErr;
- /* Count of received frames with length/type field between 1501 and 1535
- decimal, inclusive */
- __be64 ROutRangeLengthErr;
- /* Count of received frames that are longer than max allowed size for
- 802.3 frames (1518/1522) */
- __be64 RFrmTooLong;
- /* Count frames received with PCS error */
- __be64 PCS;
-
- /* Transmit frames with a length of 64 octets */
- __be64 T64_prio_0;
- __be64 T64_prio_1;
- __be64 T64_prio_2;
- __be64 T64_prio_3;
- __be64 T64_prio_4;
- __be64 T64_prio_5;
- __be64 T64_prio_6;
- __be64 T64_prio_7;
- __be64 T64_novlan;
- __be64 T64_loopbk;
- /* Transmit frames with a length of 65 to 127 octets. */
- __be64 T127_prio_0;
- __be64 T127_prio_1;
- __be64 T127_prio_2;
- __be64 T127_prio_3;
- __be64 T127_prio_4;
- __be64 T127_prio_5;
- __be64 T127_prio_6;
- __be64 T127_prio_7;
- __be64 T127_novlan;
- __be64 T127_loopbk;
- /* Transmit frames with a length of 128 to 255 octets */
- __be64 T255_prio_0;
- __be64 T255_prio_1;
- __be64 T255_prio_2;
- __be64 T255_prio_3;
- __be64 T255_prio_4;
- __be64 T255_prio_5;
- __be64 T255_prio_6;
- __be64 T255_prio_7;
- __be64 T255_novlan;
- __be64 T255_loopbk;
- /* Transmit frames with a length of 256 to 511 octets */
- __be64 T511_prio_0;
- __be64 T511_prio_1;
- __be64 T511_prio_2;
- __be64 T511_prio_3;
- __be64 T511_prio_4;
- __be64 T511_prio_5;
- __be64 T511_prio_6;
- __be64 T511_prio_7;
- __be64 T511_novlan;
- __be64 T511_loopbk;
- /* Transmit frames with a length of 512 to 1023 octets */
- __be64 T1023_prio_0;
- __be64 T1023_prio_1;
- __be64 T1023_prio_2;
- __be64 T1023_prio_3;
- __be64 T1023_prio_4;
- __be64 T1023_prio_5;
- __be64 T1023_prio_6;
- __be64 T1023_prio_7;
- __be64 T1023_novlan;
- __be64 T1023_loopbk;
- /* Transmit frames with a length of 1024 to 1518 octets */
- __be64 T1518_prio_0;
- __be64 T1518_prio_1;
- __be64 T1518_prio_2;
- __be64 T1518_prio_3;
- __be64 T1518_prio_4;
- __be64 T1518_prio_5;
- __be64 T1518_prio_6;
- __be64 T1518_prio_7;
- __be64 T1518_novlan;
- __be64 T1518_loopbk;
- /* Counts transmit frames with a length of 1519 to 1522 bytes */
- __be64 T1522_prio_0;
- __be64 T1522_prio_1;
- __be64 T1522_prio_2;
- __be64 T1522_prio_3;
- __be64 T1522_prio_4;
- __be64 T1522_prio_5;
- __be64 T1522_prio_6;
- __be64 T1522_prio_7;
- __be64 T1522_novlan;
- __be64 T1522_loopbk;
- /* Transmit frames with a length of 1523 to 1548 octets */
- __be64 T1548_prio_0;
- __be64 T1548_prio_1;
- __be64 T1548_prio_2;
- __be64 T1548_prio_3;
- __be64 T1548_prio_4;
- __be64 T1548_prio_5;
- __be64 T1548_prio_6;
- __be64 T1548_prio_7;
- __be64 T1548_novlan;
- __be64 T1548_loopbk;
- /* Counts transmit frames with a length of 1549 to MTU bytes */
- __be64 T2MTU_prio_0;
- __be64 T2MTU_prio_1;
- __be64 T2MTU_prio_2;
- __be64 T2MTU_prio_3;
- __be64 T2MTU_prio_4;
- __be64 T2MTU_prio_5;
- __be64 T2MTU_prio_6;
- __be64 T2MTU_prio_7;
- __be64 T2MTU_novlan;
- __be64 T2MTU_loopbk;
- /* Transmit frames with a length greater than MTU octets and a good CRC. */
- __be64 TGIANT_prio_0;
- __be64 TGIANT_prio_1;
- __be64 TGIANT_prio_2;
- __be64 TGIANT_prio_3;
- __be64 TGIANT_prio_4;
- __be64 TGIANT_prio_5;
- __be64 TGIANT_prio_6;
- __be64 TGIANT_prio_7;
- __be64 TGIANT_novlan;
- __be64 TGIANT_loopbk;
- /* Transmit broadcast frames with a good CRC */
- __be64 TBCAST_prio_0;
- __be64 TBCAST_prio_1;
- __be64 TBCAST_prio_2;
- __be64 TBCAST_prio_3;
- __be64 TBCAST_prio_4;
- __be64 TBCAST_prio_5;
- __be64 TBCAST_prio_6;
- __be64 TBCAST_prio_7;
- __be64 TBCAST_novlan;
- __be64 TBCAST_loopbk;
- /* Transmit multicast frames with a good CRC */
- __be64 TMCAST_prio_0;
- __be64 TMCAST_prio_1;
- __be64 TMCAST_prio_2;
- __be64 TMCAST_prio_3;
- __be64 TMCAST_prio_4;
- __be64 TMCAST_prio_5;
- __be64 TMCAST_prio_6;
- __be64 TMCAST_prio_7;
- __be64 TMCAST_novlan;
- __be64 TMCAST_loopbk;
- /* Transmit good frames that are neither broadcast nor multicast */
- __be64 TTOTG_prio_0;
- __be64 TTOTG_prio_1;
- __be64 TTOTG_prio_2;
- __be64 TTOTG_prio_3;
- __be64 TTOTG_prio_4;
- __be64 TTOTG_prio_5;
- __be64 TTOTG_prio_6;
- __be64 TTOTG_prio_7;
- __be64 TTOTG_novlan;
- __be64 TTOTG_loopbk;
-
- /* total octets of transmitted frames, including framing characters */
- __be64 TTTLOCT_prio_0;
- /* total octets of transmitted frames, not including framing characters */
- __be64 TTTLOCT_NOFRM_prio_0;
- /* ifOutOctets */
- __be64 TOCT_prio_0;
-
- __be64 TTTLOCT_prio_1;
- __be64 TTTLOCT_NOFRM_prio_1;
- __be64 TOCT_prio_1;
-
- __be64 TTTLOCT_prio_2;
- __be64 TTTLOCT_NOFRM_prio_2;
- __be64 TOCT_prio_2;
-
- __be64 TTTLOCT_prio_3;
- __be64 TTTLOCT_NOFRM_prio_3;
- __be64 TOCT_prio_3;
-
- __be64 TTTLOCT_prio_4;
- __be64 TTTLOCT_NOFRM_prio_4;
- __be64 TOCT_prio_4;
-
- __be64 TTTLOCT_prio_5;
- __be64 TTTLOCT_NOFRM_prio_5;
- __be64 TOCT_prio_5;
-
- __be64 TTTLOCT_prio_6;
- __be64 TTTLOCT_NOFRM_prio_6;
- __be64 TOCT_prio_6;
-
- __be64 TTTLOCT_prio_7;
- __be64 TTTLOCT_NOFRM_prio_7;
- __be64 TOCT_prio_7;
-
- __be64 TTTLOCT_novlan;
- __be64 TTTLOCT_NOFRM_novlan;
- __be64 TOCT_novlan;
-
- __be64 TTTLOCT_loopbk;
- __be64 TTTLOCT_NOFRM_loopbk;
- __be64 TOCT_loopbk;
-
- /* Total frames transmitted with a good CRC that are not aborted */
- __be64 TTOT_prio_0;
- /* Total number of frames transmitted with 802.1Q encapsulation */
- __be64 T1Q_prio_0;
- __be64 reserved13;
-
- __be64 TTOT_prio_1;
- __be64 T1Q_prio_1;
- __be64 reserved14;
-
- __be64 TTOT_prio_2;
- __be64 T1Q_prio_2;
- __be64 reserved15;
-
- __be64 TTOT_prio_3;
- __be64 T1Q_prio_3;
- __be64 reserved16;
-
- __be64 TTOT_prio_4;
- __be64 T1Q_prio_4;
- __be64 reserved17;
-
- __be64 TTOT_prio_5;
- __be64 T1Q_prio_5;
- __be64 reserved18;
-
- __be64 TTOT_prio_6;
- __be64 T1Q_prio_6;
- __be64 reserved19;
-
- __be64 TTOT_prio_7;
- __be64 T1Q_prio_7;
- __be64 reserved20;
-
- __be64 TTOT_novlan;
- __be64 T1Q_novlan;
- __be64 reserved21;
-
- __be64 TTOT_loopbk;
- __be64 T1Q_loopbk;
- __be64 reserved22;
-
- /* Received frames with a length greater than MTU octets and a bad CRC */
- __be32 RJBBR;
- /* Received frames with a bad CRC that are not runts, jabbers,
- or alignment errors */
- __be32 RCRC;
- /* Received frames with SFD with a length of less than 64 octets and a
- bad CRC */
- __be32 RRUNT;
- /* Received frames with a length less than 64 octets and a good CRC */
- __be32 RSHORT;
- /* Total Number of Received Packets Dropped */
- __be32 RDROP;
- /* Drop due to overflow */
- __be32 RdropOvflw;
- /* Drop due to overflow */
- __be32 RdropLength;
- /* Total of good frames. Does not include frames received with
- frame-too-long, FCS, or length errors */
- __be32 RTOTFRMS;
- /* Total dropped Xmited packets */
- __be32 TDROP;
-};
-
-
-#endif
+++ /dev/null
-/*
- * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- *
- */
-
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/mlx4/qp.h>
-
-#include "mlx4_en.h"
-
-void mlx4_en_fill_qp_context(struct mlx4_en_priv *priv, int size, int stride,
- int is_tx, int rss, int qpn, int cqn,
- struct mlx4_qp_context *context)
-{
- struct mlx4_en_dev *mdev = priv->mdev;
-
- memset(context, 0, sizeof *context);
- context->flags = cpu_to_be32(7 << 16 | rss << 13);
- context->pd = cpu_to_be32(mdev->priv_pdn);
- context->mtu_msgmax = 0xff;
- if (!is_tx && !rss)
- context->rq_size_stride = ilog2(size) << 3 | (ilog2(stride) - 4);
- if (is_tx)
- context->sq_size_stride = ilog2(size) << 3 | (ilog2(stride) - 4);
- else
- context->sq_size_stride = ilog2(TXBB_SIZE) - 4;
- context->usr_page = cpu_to_be32(mdev->priv_uar.index);
- context->local_qpn = cpu_to_be32(qpn);
- context->pri_path.ackto = 1 & 0x07;
- context->pri_path.sched_queue = 0x83 | (priv->port - 1) << 6;
- context->pri_path.counter_index = 0xff;
- context->cqn_send = cpu_to_be32(cqn);
- context->cqn_recv = cpu_to_be32(cqn);
- context->db_rec_addr = cpu_to_be64(priv->res.db.dma << 2);
-}
-
-
-int mlx4_en_map_buffer(struct mlx4_buf *buf)
-{
- struct page **pages;
- int i;
-
- if (BITS_PER_LONG == 64 || buf->nbufs == 1)
- return 0;
-
- pages = kmalloc(sizeof *pages * buf->nbufs, GFP_KERNEL);
- if (!pages)
- return -ENOMEM;
-
- for (i = 0; i < buf->nbufs; ++i)
- pages[i] = virt_to_page(buf->page_list[i].buf);
-
- buf->direct.buf = vmap(pages, buf->nbufs, VM_MAP, PAGE_KERNEL);
- kfree(pages);
- if (!buf->direct.buf)
- return -ENOMEM;
-
- return 0;
-}
-
-void mlx4_en_unmap_buffer(struct mlx4_buf *buf)
-{
- if (BITS_PER_LONG == 64 || buf->nbufs == 1)
- return;
-
- vunmap(buf->direct.buf);
-}
-
-void mlx4_en_sqp_event(struct mlx4_qp *qp, enum mlx4_event event)
-{
- return;
-}
-
+++ /dev/null
-/*
- * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- *
- */
-
-#include <linux/mlx4/cq.h>
-#include <linux/slab.h>
-#include <linux/mlx4/qp.h>
-#include <linux/skbuff.h>
-#include <linux/if_ether.h>
-#include <linux/if_vlan.h>
-#include <linux/vmalloc.h>
-
-#include "mlx4_en.h"
-
-
-static int mlx4_en_alloc_frag(struct mlx4_en_priv *priv,
- struct mlx4_en_rx_desc *rx_desc,
- struct skb_frag_struct *skb_frags,
- struct mlx4_en_rx_alloc *ring_alloc,
- int i)
-{
- struct mlx4_en_dev *mdev = priv->mdev;
- struct mlx4_en_frag_info *frag_info = &priv->frag_info[i];
- struct mlx4_en_rx_alloc *page_alloc = &ring_alloc[i];
- struct page *page;
- dma_addr_t dma;
-
- if (page_alloc->offset == frag_info->last_offset) {
- /* Allocate new page */
- page = alloc_pages(GFP_ATOMIC | __GFP_COMP, MLX4_EN_ALLOC_ORDER);
- if (!page)
- return -ENOMEM;
-
- skb_frags[i].page = page_alloc->page;
- skb_frags[i].page_offset = page_alloc->offset;
- page_alloc->page = page;
- page_alloc->offset = frag_info->frag_align;
- } else {
- page = page_alloc->page;
- get_page(page);
-
- skb_frags[i].page = page;
- skb_frags[i].page_offset = page_alloc->offset;
- page_alloc->offset += frag_info->frag_stride;
- }
- dma = pci_map_single(mdev->pdev, page_address(skb_frags[i].page) +
- skb_frags[i].page_offset, frag_info->frag_size,
- PCI_DMA_FROMDEVICE);
- rx_desc->data[i].addr = cpu_to_be64(dma);
- return 0;
-}
-
-static int mlx4_en_init_allocator(struct mlx4_en_priv *priv,
- struct mlx4_en_rx_ring *ring)
-{
- struct mlx4_en_rx_alloc *page_alloc;
- int i;
-
- for (i = 0; i < priv->num_frags; i++) {
- page_alloc = &ring->page_alloc[i];
- page_alloc->page = alloc_pages(GFP_ATOMIC | __GFP_COMP,
- MLX4_EN_ALLOC_ORDER);
- if (!page_alloc->page)
- goto out;
-
- page_alloc->offset = priv->frag_info[i].frag_align;
- en_dbg(DRV, priv, "Initialized allocator:%d with page:%p\n",
- i, page_alloc->page);
- }
- return 0;
-
-out:
- while (i--) {
- page_alloc = &ring->page_alloc[i];
- put_page(page_alloc->page);
- page_alloc->page = NULL;
- }
- return -ENOMEM;
-}
-
-static void mlx4_en_destroy_allocator(struct mlx4_en_priv *priv,
- struct mlx4_en_rx_ring *ring)
-{
- struct mlx4_en_rx_alloc *page_alloc;
- int i;
-
- for (i = 0; i < priv->num_frags; i++) {
- page_alloc = &ring->page_alloc[i];
- en_dbg(DRV, priv, "Freeing allocator:%d count:%d\n",
- i, page_count(page_alloc->page));
-
- put_page(page_alloc->page);
- page_alloc->page = NULL;
- }
-}
-
-
-static void mlx4_en_init_rx_desc(struct mlx4_en_priv *priv,
- struct mlx4_en_rx_ring *ring, int index)
-{
- struct mlx4_en_rx_desc *rx_desc = ring->buf + ring->stride * index;
- struct skb_frag_struct *skb_frags = ring->rx_info +
- (index << priv->log_rx_info);
- int possible_frags;
- int i;
-
- /* Set size and memtype fields */
- for (i = 0; i < priv->num_frags; i++) {
- skb_frags[i].size = priv->frag_info[i].frag_size;
- rx_desc->data[i].byte_count =
- cpu_to_be32(priv->frag_info[i].frag_size);
- rx_desc->data[i].lkey = cpu_to_be32(priv->mdev->mr.key);
- }
-
- /* If the number of used fragments does not fill up the ring stride,
- * remaining (unused) fragments must be padded with null address/size
- * and a special memory key */
- possible_frags = (ring->stride - sizeof(struct mlx4_en_rx_desc)) / DS_SIZE;
- for (i = priv->num_frags; i < possible_frags; i++) {
- rx_desc->data[i].byte_count = 0;
- rx_desc->data[i].lkey = cpu_to_be32(MLX4_EN_MEMTYPE_PAD);
- rx_desc->data[i].addr = 0;
- }
-}
-
-
-static int mlx4_en_prepare_rx_desc(struct mlx4_en_priv *priv,
- struct mlx4_en_rx_ring *ring, int index)
-{
- struct mlx4_en_rx_desc *rx_desc = ring->buf + (index * ring->stride);
- struct skb_frag_struct *skb_frags = ring->rx_info +
- (index << priv->log_rx_info);
- int i;
-
- for (i = 0; i < priv->num_frags; i++)
- if (mlx4_en_alloc_frag(priv, rx_desc, skb_frags, ring->page_alloc, i))
- goto err;
-
- return 0;
-
-err:
- while (i--)
- put_page(skb_frags[i].page);
- return -ENOMEM;
-}
-
-static inline void mlx4_en_update_rx_prod_db(struct mlx4_en_rx_ring *ring)
-{
- *ring->wqres.db.db = cpu_to_be32(ring->prod & 0xffff);
-}
-
-static void mlx4_en_free_rx_desc(struct mlx4_en_priv *priv,
- struct mlx4_en_rx_ring *ring,
- int index)
-{
- struct mlx4_en_dev *mdev = priv->mdev;
- struct skb_frag_struct *skb_frags;
- struct mlx4_en_rx_desc *rx_desc = ring->buf + (index << ring->log_stride);
- dma_addr_t dma;
- int nr;
-
- skb_frags = ring->rx_info + (index << priv->log_rx_info);
- for (nr = 0; nr < priv->num_frags; nr++) {
- en_dbg(DRV, priv, "Freeing fragment:%d\n", nr);
- dma = be64_to_cpu(rx_desc->data[nr].addr);
-
- en_dbg(DRV, priv, "Unmapping buffer at dma:0x%llx\n", (u64) dma);
- pci_unmap_single(mdev->pdev, dma, skb_frags[nr].size,
- PCI_DMA_FROMDEVICE);
- put_page(skb_frags[nr].page);
- }
-}
-
-static int mlx4_en_fill_rx_buffers(struct mlx4_en_priv *priv)
-{
- struct mlx4_en_rx_ring *ring;
- int ring_ind;
- int buf_ind;
- int new_size;
-
- for (buf_ind = 0; buf_ind < priv->prof->rx_ring_size; buf_ind++) {
- for (ring_ind = 0; ring_ind < priv->rx_ring_num; ring_ind++) {
- ring = &priv->rx_ring[ring_ind];
-
- if (mlx4_en_prepare_rx_desc(priv, ring,
- ring->actual_size)) {
- if (ring->actual_size < MLX4_EN_MIN_RX_SIZE) {
- en_err(priv, "Failed to allocate "
- "enough rx buffers\n");
- return -ENOMEM;
- } else {
- new_size = rounddown_pow_of_two(ring->actual_size);
- en_warn(priv, "Only %d buffers allocated "
- "reducing ring size to %d",
- ring->actual_size, new_size);
- goto reduce_rings;
- }
- }
- ring->actual_size++;
- ring->prod++;
- }
- }
- return 0;
-
-reduce_rings:
- for (ring_ind = 0; ring_ind < priv->rx_ring_num; ring_ind++) {
- ring = &priv->rx_ring[ring_ind];
- while (ring->actual_size > new_size) {
- ring->actual_size--;
- ring->prod--;
- mlx4_en_free_rx_desc(priv, ring, ring->actual_size);
- }
- }
-
- return 0;
-}
-
-static void mlx4_en_free_rx_buf(struct mlx4_en_priv *priv,
- struct mlx4_en_rx_ring *ring)
-{
- int index;
-
- en_dbg(DRV, priv, "Freeing Rx buf - cons:%d prod:%d\n",
- ring->cons, ring->prod);
-
- /* Unmap and free Rx buffers */
- BUG_ON((u32) (ring->prod - ring->cons) > ring->actual_size);
- while (ring->cons != ring->prod) {
- index = ring->cons & ring->size_mask;
- en_dbg(DRV, priv, "Processing descriptor:%d\n", index);
- mlx4_en_free_rx_desc(priv, ring, index);
- ++ring->cons;
- }
-}
-
-int mlx4_en_create_rx_ring(struct mlx4_en_priv *priv,
- struct mlx4_en_rx_ring *ring, u32 size, u16 stride)
-{
- struct mlx4_en_dev *mdev = priv->mdev;
- int err;
- int tmp;
-
-
- ring->prod = 0;
- ring->cons = 0;
- ring->size = size;
- ring->size_mask = size - 1;
- ring->stride = stride;
- ring->log_stride = ffs(ring->stride) - 1;
- ring->buf_size = ring->size * ring->stride + TXBB_SIZE;
-
- tmp = size * roundup_pow_of_two(MLX4_EN_MAX_RX_FRAGS *
- sizeof(struct skb_frag_struct));
- ring->rx_info = vmalloc(tmp);
- if (!ring->rx_info) {
- en_err(priv, "Failed allocating rx_info ring\n");
- return -ENOMEM;
- }
- en_dbg(DRV, priv, "Allocated rx_info ring at addr:%p size:%d\n",
- ring->rx_info, tmp);
-
- err = mlx4_alloc_hwq_res(mdev->dev, &ring->wqres,
- ring->buf_size, 2 * PAGE_SIZE);
- if (err)
- goto err_ring;
-
- err = mlx4_en_map_buffer(&ring->wqres.buf);
- if (err) {
- en_err(priv, "Failed to map RX buffer\n");
- goto err_hwq;
- }
- ring->buf = ring->wqres.buf.direct.buf;
-
- return 0;
-
-err_hwq:
- mlx4_free_hwq_res(mdev->dev, &ring->wqres, ring->buf_size);
-err_ring:
- vfree(ring->rx_info);
- ring->rx_info = NULL;
- return err;
-}
-
-int mlx4_en_activate_rx_rings(struct mlx4_en_priv *priv)
-{
- struct mlx4_en_rx_ring *ring;
- int i;
- int ring_ind;
- int err;
- int stride = roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc) +
- DS_SIZE * priv->num_frags);
-
- for (ring_ind = 0; ring_ind < priv->rx_ring_num; ring_ind++) {
- ring = &priv->rx_ring[ring_ind];
-
- ring->prod = 0;
- ring->cons = 0;
- ring->actual_size = 0;
- ring->cqn = priv->rx_cq[ring_ind].mcq.cqn;
-
- ring->stride = stride;
- if (ring->stride <= TXBB_SIZE)
- ring->buf += TXBB_SIZE;
-
- ring->log_stride = ffs(ring->stride) - 1;
- ring->buf_size = ring->size * ring->stride;
-
- memset(ring->buf, 0, ring->buf_size);
- mlx4_en_update_rx_prod_db(ring);
-
- /* Initailize all descriptors */
- for (i = 0; i < ring->size; i++)
- mlx4_en_init_rx_desc(priv, ring, i);
-
- /* Initialize page allocators */
- err = mlx4_en_init_allocator(priv, ring);
- if (err) {
- en_err(priv, "Failed initializing ring allocator\n");
- if (ring->stride <= TXBB_SIZE)
- ring->buf -= TXBB_SIZE;
- ring_ind--;
- goto err_allocator;
- }
- }
- err = mlx4_en_fill_rx_buffers(priv);
- if (err)
- goto err_buffers;
-
- for (ring_ind = 0; ring_ind < priv->rx_ring_num; ring_ind++) {
- ring = &priv->rx_ring[ring_ind];
-
- ring->size_mask = ring->actual_size - 1;
- mlx4_en_update_rx_prod_db(ring);
- }
-
- return 0;
-
-err_buffers:
- for (ring_ind = 0; ring_ind < priv->rx_ring_num; ring_ind++)
- mlx4_en_free_rx_buf(priv, &priv->rx_ring[ring_ind]);
-
- ring_ind = priv->rx_ring_num - 1;
-err_allocator:
- while (ring_ind >= 0) {
- if (priv->rx_ring[ring_ind].stride <= TXBB_SIZE)
- priv->rx_ring[ring_ind].buf -= TXBB_SIZE;
- mlx4_en_destroy_allocator(priv, &priv->rx_ring[ring_ind]);
- ring_ind--;
- }
- return err;
-}
-
-void mlx4_en_destroy_rx_ring(struct mlx4_en_priv *priv,
- struct mlx4_en_rx_ring *ring)
-{
- struct mlx4_en_dev *mdev = priv->mdev;
-
- mlx4_en_unmap_buffer(&ring->wqres.buf);
- mlx4_free_hwq_res(mdev->dev, &ring->wqres, ring->buf_size + TXBB_SIZE);
- vfree(ring->rx_info);
- ring->rx_info = NULL;
-}
-
-void mlx4_en_deactivate_rx_ring(struct mlx4_en_priv *priv,
- struct mlx4_en_rx_ring *ring)
-{
- mlx4_en_free_rx_buf(priv, ring);
- if (ring->stride <= TXBB_SIZE)
- ring->buf -= TXBB_SIZE;
- mlx4_en_destroy_allocator(priv, ring);
-}
-
-
-/* Unmap a completed descriptor and free unused pages */
-static int mlx4_en_complete_rx_desc(struct mlx4_en_priv *priv,
- struct mlx4_en_rx_desc *rx_desc,
- struct skb_frag_struct *skb_frags,
- struct skb_frag_struct *skb_frags_rx,
- struct mlx4_en_rx_alloc *page_alloc,
- int length)
-{
- struct mlx4_en_dev *mdev = priv->mdev;
- struct mlx4_en_frag_info *frag_info;
- int nr;
- dma_addr_t dma;
-
- /* Collect used fragments while replacing them in the HW descirptors */
- for (nr = 0; nr < priv->num_frags; nr++) {
- frag_info = &priv->frag_info[nr];
- if (length <= frag_info->frag_prefix_size)
- break;
-
- /* Save page reference in skb */
- skb_frags_rx[nr].page = skb_frags[nr].page;
- skb_frags_rx[nr].size = skb_frags[nr].size;
- skb_frags_rx[nr].page_offset = skb_frags[nr].page_offset;
- dma = be64_to_cpu(rx_desc->data[nr].addr);
-
- /* Allocate a replacement page */
- if (mlx4_en_alloc_frag(priv, rx_desc, skb_frags, page_alloc, nr))
- goto fail;
-
- /* Unmap buffer */
- pci_unmap_single(mdev->pdev, dma, skb_frags_rx[nr].size,
- PCI_DMA_FROMDEVICE);
- }
- /* Adjust size of last fragment to match actual length */
- if (nr > 0)
- skb_frags_rx[nr - 1].size = length -
- priv->frag_info[nr - 1].frag_prefix_size;
- return nr;
-
-fail:
- /* Drop all accumulated fragments (which have already been replaced in
- * the descriptor) of this packet; remaining fragments are reused... */
- while (nr > 0) {
- nr--;
- put_page(skb_frags_rx[nr].page);
- }
- return 0;
-}
-
-
-static struct sk_buff *mlx4_en_rx_skb(struct mlx4_en_priv *priv,
- struct mlx4_en_rx_desc *rx_desc,
- struct skb_frag_struct *skb_frags,
- struct mlx4_en_rx_alloc *page_alloc,
- unsigned int length)
-{
- struct mlx4_en_dev *mdev = priv->mdev;
- struct sk_buff *skb;
- void *va;
- int used_frags;
- dma_addr_t dma;
-
- skb = dev_alloc_skb(SMALL_PACKET_SIZE + NET_IP_ALIGN);
- if (!skb) {
- en_dbg(RX_ERR, priv, "Failed allocating skb\n");
- return NULL;
- }
- skb->dev = priv->dev;
- skb_reserve(skb, NET_IP_ALIGN);
- skb->len = length;
- skb->truesize = length + sizeof(struct sk_buff);
-
- /* Get pointer to first fragment so we could copy the headers into the
- * (linear part of the) skb */
- va = page_address(skb_frags[0].page) + skb_frags[0].page_offset;
-
- if (length <= SMALL_PACKET_SIZE) {
- /* We are copying all relevant data to the skb - temporarily
- * synch buffers for the copy */
- dma = be64_to_cpu(rx_desc->data[0].addr);
- dma_sync_single_for_cpu(&mdev->pdev->dev, dma, length,
- DMA_FROM_DEVICE);
- skb_copy_to_linear_data(skb, va, length);
- dma_sync_single_for_device(&mdev->pdev->dev, dma, length,
- DMA_FROM_DEVICE);
- skb->tail += length;
- } else {
-
- /* Move relevant fragments to skb */
- used_frags = mlx4_en_complete_rx_desc(priv, rx_desc, skb_frags,
- skb_shinfo(skb)->frags,
- page_alloc, length);
- if (unlikely(!used_frags)) {
- kfree_skb(skb);
- return NULL;
- }
- skb_shinfo(skb)->nr_frags = used_frags;
-
- /* Copy headers into the skb linear buffer */
- memcpy(skb->data, va, HEADER_COPY_SIZE);
- skb->tail += HEADER_COPY_SIZE;
-
- /* Skip headers in first fragment */
- skb_shinfo(skb)->frags[0].page_offset += HEADER_COPY_SIZE;
-
- /* Adjust size of first fragment */
- skb_shinfo(skb)->frags[0].size -= HEADER_COPY_SIZE;
- skb->data_len = length - HEADER_COPY_SIZE;
- }
- return skb;
-}
-
-static void validate_loopback(struct mlx4_en_priv *priv, struct sk_buff *skb)
-{
- int i;
- int offset = ETH_HLEN;
-
- for (i = 0; i < MLX4_LOOPBACK_TEST_PAYLOAD; i++, offset++) {
- if (*(skb->data + offset) != (unsigned char) (i & 0xff))
- goto out_loopback;
- }
- /* Loopback found */
- priv->loopback_ok = 1;
-
-out_loopback:
- dev_kfree_skb_any(skb);
-}
-
-int mlx4_en_process_rx_cq(struct net_device *dev, struct mlx4_en_cq *cq, int budget)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
- struct mlx4_cqe *cqe;
- struct mlx4_en_rx_ring *ring = &priv->rx_ring[cq->ring];
- struct skb_frag_struct *skb_frags;
- struct mlx4_en_rx_desc *rx_desc;
- struct sk_buff *skb;
- int index;
- int nr;
- unsigned int length;
- int polled = 0;
- int ip_summed;
-
- if (!priv->port_up)
- return 0;
-
- /* We assume a 1:1 mapping between CQEs and Rx descriptors, so Rx
- * descriptor offset can be deduced from the CQE index instead of
- * reading 'cqe->index' */
- index = cq->mcq.cons_index & ring->size_mask;
- cqe = &cq->buf[index];
-
- /* Process all completed CQEs */
- while (XNOR(cqe->owner_sr_opcode & MLX4_CQE_OWNER_MASK,
- cq->mcq.cons_index & cq->size)) {
-
- skb_frags = ring->rx_info + (index << priv->log_rx_info);
- rx_desc = ring->buf + (index << ring->log_stride);
-
- /*
- * make sure we read the CQE after we read the ownership bit
- */
- rmb();
-
- /* Drop packet on bad receive or bad checksum */
- if (unlikely((cqe->owner_sr_opcode & MLX4_CQE_OPCODE_MASK) ==
- MLX4_CQE_OPCODE_ERROR)) {
- en_err(priv, "CQE completed in error - vendor "
- "syndrom:%d syndrom:%d\n",
- ((struct mlx4_err_cqe *) cqe)->vendor_err_syndrome,
- ((struct mlx4_err_cqe *) cqe)->syndrome);
- goto next;
- }
- if (unlikely(cqe->badfcs_enc & MLX4_CQE_BAD_FCS)) {
- en_dbg(RX_ERR, priv, "Accepted frame with bad FCS\n");
- goto next;
- }
-
- /*
- * Packet is OK - process it.
- */
- length = be32_to_cpu(cqe->byte_cnt);
- ring->bytes += length;
- ring->packets++;
-
- if (likely(dev->features & NETIF_F_RXCSUM)) {
- if ((cqe->status & cpu_to_be16(MLX4_CQE_STATUS_IPOK)) &&
- (cqe->checksum == cpu_to_be16(0xffff))) {
- priv->port_stats.rx_chksum_good++;
- /* This packet is eligible for LRO if it is:
- * - DIX Ethernet (type interpretation)
- * - TCP/IP (v4)
- * - without IP options
- * - not an IP fragment */
- if (dev->features & NETIF_F_GRO) {
- struct sk_buff *gro_skb = napi_get_frags(&cq->napi);
- if (!gro_skb)
- goto next;
-
- nr = mlx4_en_complete_rx_desc(
- priv, rx_desc,
- skb_frags, skb_shinfo(gro_skb)->frags,
- ring->page_alloc, length);
- if (!nr)
- goto next;
-
- skb_shinfo(gro_skb)->nr_frags = nr;
- gro_skb->len = length;
- gro_skb->data_len = length;
- gro_skb->truesize += length;
- gro_skb->ip_summed = CHECKSUM_UNNECESSARY;
-
- if (cqe->vlan_my_qpn &
- cpu_to_be32(MLX4_CQE_VLAN_PRESENT_MASK)) {
- u16 vid = be16_to_cpu(cqe->sl_vid);
-
- __vlan_hwaccel_put_tag(gro_skb, vid);
- }
-
- napi_gro_frags(&cq->napi);
-
- goto next;
- }
-
- /* LRO not possible, complete processing here */
- ip_summed = CHECKSUM_UNNECESSARY;
- } else {
- ip_summed = CHECKSUM_NONE;
- priv->port_stats.rx_chksum_none++;
- }
- } else {
- ip_summed = CHECKSUM_NONE;
- priv->port_stats.rx_chksum_none++;
- }
-
- skb = mlx4_en_rx_skb(priv, rx_desc, skb_frags,
- ring->page_alloc, length);
- if (!skb) {
- priv->stats.rx_dropped++;
- goto next;
- }
-
- if (unlikely(priv->validate_loopback)) {
- validate_loopback(priv, skb);
- goto next;
- }
-
- skb->ip_summed = ip_summed;
- skb->protocol = eth_type_trans(skb, dev);
- skb_record_rx_queue(skb, cq->ring);
-
- if (be32_to_cpu(cqe->vlan_my_qpn) &
- MLX4_CQE_VLAN_PRESENT_MASK)
- __vlan_hwaccel_put_tag(skb, be16_to_cpu(cqe->sl_vid));
-
- /* Push it up the stack */
- netif_receive_skb(skb);
-
-next:
- ++cq->mcq.cons_index;
- index = (cq->mcq.cons_index) & ring->size_mask;
- cqe = &cq->buf[index];
- if (++polled == budget) {
- /* We are here because we reached the NAPI budget -
- * flush only pending LRO sessions */
- goto out;
- }
- }
-
-out:
- AVG_PERF_COUNTER(priv->pstats.rx_coal_avg, polled);
- mlx4_cq_set_ci(&cq->mcq);
- wmb(); /* ensure HW sees CQ consumer before we post new buffers */
- ring->cons = cq->mcq.cons_index;
- ring->prod += polled; /* Polled descriptors were realocated in place */
- mlx4_en_update_rx_prod_db(ring);
- return polled;
-}
-
-
-void mlx4_en_rx_irq(struct mlx4_cq *mcq)
-{
- struct mlx4_en_cq *cq = container_of(mcq, struct mlx4_en_cq, mcq);
- struct mlx4_en_priv *priv = netdev_priv(cq->dev);
-
- if (priv->port_up)
- napi_schedule(&cq->napi);
- else
- mlx4_en_arm_cq(priv, cq);
-}
-
-/* Rx CQ polling - called by NAPI */
-int mlx4_en_poll_rx_cq(struct napi_struct *napi, int budget)
-{
- struct mlx4_en_cq *cq = container_of(napi, struct mlx4_en_cq, napi);
- struct net_device *dev = cq->dev;
- struct mlx4_en_priv *priv = netdev_priv(dev);
- int done;
-
- done = mlx4_en_process_rx_cq(dev, cq, budget);
-
- /* If we used up all the quota - we're probably not done yet... */
- if (done == budget)
- INC_PERF_COUNTER(priv->pstats.napi_quota);
- else {
- /* Done for now */
- napi_complete(napi);
- mlx4_en_arm_cq(priv, cq);
- }
- return done;
-}
-
-
-/* Calculate the last offset position that accommodates a full fragment
- * (assuming fagment size = stride-align) */
-static int mlx4_en_last_alloc_offset(struct mlx4_en_priv *priv, u16 stride, u16 align)
-{
- u16 res = MLX4_EN_ALLOC_SIZE % stride;
- u16 offset = MLX4_EN_ALLOC_SIZE - stride - res + align;
-
- en_dbg(DRV, priv, "Calculated last offset for stride:%d align:%d "
- "res:%d offset:%d\n", stride, align, res, offset);
- return offset;
-}
-
-
-static int frag_sizes[] = {
- FRAG_SZ0,
- FRAG_SZ1,
- FRAG_SZ2,
- FRAG_SZ3
-};
-
-void mlx4_en_calc_rx_buf(struct net_device *dev)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
- int eff_mtu = dev->mtu + ETH_HLEN + VLAN_HLEN + ETH_LLC_SNAP_SIZE;
- int buf_size = 0;
- int i = 0;
-
- while (buf_size < eff_mtu) {
- priv->frag_info[i].frag_size =
- (eff_mtu > buf_size + frag_sizes[i]) ?
- frag_sizes[i] : eff_mtu - buf_size;
- priv->frag_info[i].frag_prefix_size = buf_size;
- if (!i) {
- priv->frag_info[i].frag_align = NET_IP_ALIGN;
- priv->frag_info[i].frag_stride =
- ALIGN(frag_sizes[i] + NET_IP_ALIGN, SMP_CACHE_BYTES);
- } else {
- priv->frag_info[i].frag_align = 0;
- priv->frag_info[i].frag_stride =
- ALIGN(frag_sizes[i], SMP_CACHE_BYTES);
- }
- priv->frag_info[i].last_offset = mlx4_en_last_alloc_offset(
- priv, priv->frag_info[i].frag_stride,
- priv->frag_info[i].frag_align);
- buf_size += priv->frag_info[i].frag_size;
- i++;
- }
-
- priv->num_frags = i;
- priv->rx_skb_size = eff_mtu;
- priv->log_rx_info = ROUNDUP_LOG2(i * sizeof(struct skb_frag_struct));
-
- en_dbg(DRV, priv, "Rx buffer scatter-list (effective-mtu:%d "
- "num_frags:%d):\n", eff_mtu, priv->num_frags);
- for (i = 0; i < priv->num_frags; i++) {
- en_dbg(DRV, priv, " frag:%d - size:%d prefix:%d align:%d "
- "stride:%d last_offset:%d\n", i,
- priv->frag_info[i].frag_size,
- priv->frag_info[i].frag_prefix_size,
- priv->frag_info[i].frag_align,
- priv->frag_info[i].frag_stride,
- priv->frag_info[i].last_offset);
- }
-}
-
-/* RSS related functions */
-
-static int mlx4_en_config_rss_qp(struct mlx4_en_priv *priv, int qpn,
- struct mlx4_en_rx_ring *ring,
- enum mlx4_qp_state *state,
- struct mlx4_qp *qp)
-{
- struct mlx4_en_dev *mdev = priv->mdev;
- struct mlx4_qp_context *context;
- int err = 0;
-
- context = kmalloc(sizeof *context , GFP_KERNEL);
- if (!context) {
- en_err(priv, "Failed to allocate qp context\n");
- return -ENOMEM;
- }
-
- err = mlx4_qp_alloc(mdev->dev, qpn, qp);
- if (err) {
- en_err(priv, "Failed to allocate qp #%x\n", qpn);
- goto out;
- }
- qp->event = mlx4_en_sqp_event;
-
- memset(context, 0, sizeof *context);
- mlx4_en_fill_qp_context(priv, ring->actual_size, ring->stride, 0, 0,
- qpn, ring->cqn, context);
- context->db_rec_addr = cpu_to_be64(ring->wqres.db.dma);
-
- err = mlx4_qp_to_ready(mdev->dev, &ring->wqres.mtt, context, qp, state);
- if (err) {
- mlx4_qp_remove(mdev->dev, qp);
- mlx4_qp_free(mdev->dev, qp);
- }
- mlx4_en_update_rx_prod_db(ring);
-out:
- kfree(context);
- return err;
-}
-
-/* Allocate rx qp's and configure them according to rss map */
-int mlx4_en_config_rss_steer(struct mlx4_en_priv *priv)
-{
- struct mlx4_en_dev *mdev = priv->mdev;
- struct mlx4_en_rss_map *rss_map = &priv->rss_map;
- struct mlx4_qp_context context;
- struct mlx4_en_rss_context *rss_context;
- void *ptr;
- u8 rss_mask = 0x3f;
- int i, qpn;
- int err = 0;
- int good_qps = 0;
-
- en_dbg(DRV, priv, "Configuring rss steering\n");
- err = mlx4_qp_reserve_range(mdev->dev, priv->rx_ring_num,
- priv->rx_ring_num,
- &rss_map->base_qpn);
- if (err) {
- en_err(priv, "Failed reserving %d qps\n", priv->rx_ring_num);
- return err;
- }
-
- for (i = 0; i < priv->rx_ring_num; i++) {
- qpn = rss_map->base_qpn + i;
- err = mlx4_en_config_rss_qp(priv, qpn, &priv->rx_ring[i],
- &rss_map->state[i],
- &rss_map->qps[i]);
- if (err)
- goto rss_err;
-
- ++good_qps;
- }
-
- /* Configure RSS indirection qp */
- err = mlx4_qp_alloc(mdev->dev, priv->base_qpn, &rss_map->indir_qp);
- if (err) {
- en_err(priv, "Failed to allocate RSS indirection QP\n");
- goto rss_err;
- }
- rss_map->indir_qp.event = mlx4_en_sqp_event;
- mlx4_en_fill_qp_context(priv, 0, 0, 0, 1, priv->base_qpn,
- priv->rx_ring[0].cqn, &context);
-
- ptr = ((void *) &context) + 0x3c;
- rss_context = ptr;
- rss_context->base_qpn = cpu_to_be32(ilog2(priv->rx_ring_num) << 24 |
- (rss_map->base_qpn));
- rss_context->default_qpn = cpu_to_be32(rss_map->base_qpn);
- rss_context->flags = rss_mask;
-
- if (priv->mdev->profile.udp_rss)
- rss_context->base_qpn_udp = rss_context->default_qpn;
- err = mlx4_qp_to_ready(mdev->dev, &priv->res.mtt, &context,
- &rss_map->indir_qp, &rss_map->indir_state);
- if (err)
- goto indir_err;
-
- return 0;
-
-indir_err:
- mlx4_qp_modify(mdev->dev, NULL, rss_map->indir_state,
- MLX4_QP_STATE_RST, NULL, 0, 0, &rss_map->indir_qp);
- mlx4_qp_remove(mdev->dev, &rss_map->indir_qp);
- mlx4_qp_free(mdev->dev, &rss_map->indir_qp);
-rss_err:
- for (i = 0; i < good_qps; i++) {
- mlx4_qp_modify(mdev->dev, NULL, rss_map->state[i],
- MLX4_QP_STATE_RST, NULL, 0, 0, &rss_map->qps[i]);
- mlx4_qp_remove(mdev->dev, &rss_map->qps[i]);
- mlx4_qp_free(mdev->dev, &rss_map->qps[i]);
- }
- mlx4_qp_release_range(mdev->dev, rss_map->base_qpn, priv->rx_ring_num);
- return err;
-}
-
-void mlx4_en_release_rss_steer(struct mlx4_en_priv *priv)
-{
- struct mlx4_en_dev *mdev = priv->mdev;
- struct mlx4_en_rss_map *rss_map = &priv->rss_map;
- int i;
-
- mlx4_qp_modify(mdev->dev, NULL, rss_map->indir_state,
- MLX4_QP_STATE_RST, NULL, 0, 0, &rss_map->indir_qp);
- mlx4_qp_remove(mdev->dev, &rss_map->indir_qp);
- mlx4_qp_free(mdev->dev, &rss_map->indir_qp);
-
- for (i = 0; i < priv->rx_ring_num; i++) {
- mlx4_qp_modify(mdev->dev, NULL, rss_map->state[i],
- MLX4_QP_STATE_RST, NULL, 0, 0, &rss_map->qps[i]);
- mlx4_qp_remove(mdev->dev, &rss_map->qps[i]);
- mlx4_qp_free(mdev->dev, &rss_map->qps[i]);
- }
- mlx4_qp_release_range(mdev->dev, rss_map->base_qpn, priv->rx_ring_num);
-}
-
-
-
-
-
+++ /dev/null
-/*
- * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/ethtool.h>
-#include <linux/netdevice.h>
-#include <linux/delay.h>
-#include <linux/mlx4/driver.h>
-
-#include "mlx4_en.h"
-
-
-static int mlx4_en_test_registers(struct mlx4_en_priv *priv)
-{
- return mlx4_cmd(priv->mdev->dev, 0, 0, 0, MLX4_CMD_HW_HEALTH_CHECK,
- MLX4_CMD_TIME_CLASS_A);
-}
-
-static int mlx4_en_test_loopback_xmit(struct mlx4_en_priv *priv)
-{
- struct sk_buff *skb;
- struct ethhdr *ethh;
- unsigned char *packet;
- unsigned int packet_size = MLX4_LOOPBACK_TEST_PAYLOAD;
- unsigned int i;
- int err;
-
-
- /* build the pkt before xmit */
- skb = netdev_alloc_skb(priv->dev, MLX4_LOOPBACK_TEST_PAYLOAD + ETH_HLEN + NET_IP_ALIGN);
- if (!skb) {
- en_err(priv, "-LOOPBACK_TEST_XMIT- failed to create skb for xmit\n");
- return -ENOMEM;
- }
- skb_reserve(skb, NET_IP_ALIGN);
-
- ethh = (struct ethhdr *)skb_put(skb, sizeof(struct ethhdr));
- packet = (unsigned char *)skb_put(skb, packet_size);
- memcpy(ethh->h_dest, priv->dev->dev_addr, ETH_ALEN);
- memset(ethh->h_source, 0, ETH_ALEN);
- ethh->h_proto = htons(ETH_P_ARP);
- skb_set_mac_header(skb, 0);
- for (i = 0; i < packet_size; ++i) /* fill our packet */
- packet[i] = (unsigned char)(i & 0xff);
-
- /* xmit the pkt */
- err = mlx4_en_xmit(skb, priv->dev);
- return err;
-}
-
-static int mlx4_en_test_loopback(struct mlx4_en_priv *priv)
-{
- u32 loopback_ok = 0;
- int i;
-
-
- priv->loopback_ok = 0;
- priv->validate_loopback = 1;
-
- /* xmit */
- if (mlx4_en_test_loopback_xmit(priv)) {
- en_err(priv, "Transmitting loopback packet failed\n");
- goto mlx4_en_test_loopback_exit;
- }
-
- /* polling for result */
- for (i = 0; i < MLX4_EN_LOOPBACK_RETRIES; ++i) {
- msleep(MLX4_EN_LOOPBACK_TIMEOUT);
- if (priv->loopback_ok) {
- loopback_ok = 1;
- break;
- }
- }
- if (!loopback_ok)
- en_err(priv, "Loopback packet didn't arrive\n");
-
-mlx4_en_test_loopback_exit:
-
- priv->validate_loopback = 0;
- return !loopback_ok;
-}
-
-
-static int mlx4_en_test_link(struct mlx4_en_priv *priv)
-{
- if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
- return -ENOMEM;
- if (priv->port_state.link_state == 1)
- return 0;
- else
- return 1;
-}
-
-static int mlx4_en_test_speed(struct mlx4_en_priv *priv)
-{
-
- if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
- return -ENOMEM;
-
- /* The device currently only supports 10G speed */
- if (priv->port_state.link_speed != SPEED_10000)
- return priv->port_state.link_speed;
- return 0;
-}
-
-
-void mlx4_en_ex_selftest(struct net_device *dev, u32 *flags, u64 *buf)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
- struct mlx4_en_dev *mdev = priv->mdev;
- struct mlx4_en_tx_ring *tx_ring;
- int i, carrier_ok;
-
- memset(buf, 0, sizeof(u64) * MLX4_EN_NUM_SELF_TEST);
-
- if (*flags & ETH_TEST_FL_OFFLINE) {
- /* disable the interface */
- carrier_ok = netif_carrier_ok(dev);
-
- netif_carrier_off(dev);
-retry_tx:
- /* Wait until all tx queues are empty.
- * there should not be any additional incoming traffic
- * since we turned the carrier off */
- msleep(200);
- for (i = 0; i < priv->tx_ring_num && carrier_ok; i++) {
- tx_ring = &priv->tx_ring[i];
- if (tx_ring->prod != (tx_ring->cons + tx_ring->last_nr_txbb))
- goto retry_tx;
- }
-
- if (priv->mdev->dev->caps.flags &
- MLX4_DEV_CAP_FLAG_UC_LOOPBACK) {
- buf[3] = mlx4_en_test_registers(priv);
- buf[4] = mlx4_en_test_loopback(priv);
- }
-
- if (carrier_ok)
- netif_carrier_on(dev);
-
- }
- buf[0] = mlx4_test_interrupts(mdev->dev);
- buf[1] = mlx4_en_test_link(priv);
- buf[2] = mlx4_en_test_speed(priv);
-
- for (i = 0; i < MLX4_EN_NUM_SELF_TEST; i++) {
- if (buf[i])
- *flags |= ETH_TEST_FL_FAILED;
- }
-}
+++ /dev/null
-/*
- * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- *
- */
-
-#include <asm/page.h>
-#include <linux/mlx4/cq.h>
-#include <linux/slab.h>
-#include <linux/mlx4/qp.h>
-#include <linux/skbuff.h>
-#include <linux/if_vlan.h>
-#include <linux/vmalloc.h>
-#include <linux/tcp.h>
-
-#include "mlx4_en.h"
-
-enum {
- MAX_INLINE = 104, /* 128 - 16 - 4 - 4 */
- MAX_BF = 256,
-};
-
-static int inline_thold __read_mostly = MAX_INLINE;
-
-module_param_named(inline_thold, inline_thold, int, 0444);
-MODULE_PARM_DESC(inline_thold, "threshold for using inline data");
-
-int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv,
- struct mlx4_en_tx_ring *ring, int qpn, u32 size,
- u16 stride)
-{
- struct mlx4_en_dev *mdev = priv->mdev;
- int tmp;
- int err;
-
- ring->size = size;
- ring->size_mask = size - 1;
- ring->stride = stride;
-
- inline_thold = min(inline_thold, MAX_INLINE);
-
- spin_lock_init(&ring->comp_lock);
-
- tmp = size * sizeof(struct mlx4_en_tx_info);
- ring->tx_info = vmalloc(tmp);
- if (!ring->tx_info) {
- en_err(priv, "Failed allocating tx_info ring\n");
- return -ENOMEM;
- }
- en_dbg(DRV, priv, "Allocated tx_info ring at addr:%p size:%d\n",
- ring->tx_info, tmp);
-
- ring->bounce_buf = kmalloc(MAX_DESC_SIZE, GFP_KERNEL);
- if (!ring->bounce_buf) {
- en_err(priv, "Failed allocating bounce buffer\n");
- err = -ENOMEM;
- goto err_tx;
- }
- ring->buf_size = ALIGN(size * ring->stride, MLX4_EN_PAGE_SIZE);
-
- err = mlx4_alloc_hwq_res(mdev->dev, &ring->wqres, ring->buf_size,
- 2 * PAGE_SIZE);
- if (err) {
- en_err(priv, "Failed allocating hwq resources\n");
- goto err_bounce;
- }
-
- err = mlx4_en_map_buffer(&ring->wqres.buf);
- if (err) {
- en_err(priv, "Failed to map TX buffer\n");
- goto err_hwq_res;
- }
-
- ring->buf = ring->wqres.buf.direct.buf;
-
- en_dbg(DRV, priv, "Allocated TX ring (addr:%p) - buf:%p size:%d "
- "buf_size:%d dma:%llx\n", ring, ring->buf, ring->size,
- ring->buf_size, (unsigned long long) ring->wqres.buf.direct.map);
-
- ring->qpn = qpn;
- err = mlx4_qp_alloc(mdev->dev, ring->qpn, &ring->qp);
- if (err) {
- en_err(priv, "Failed allocating qp %d\n", ring->qpn);
- goto err_map;
- }
- ring->qp.event = mlx4_en_sqp_event;
-
- err = mlx4_bf_alloc(mdev->dev, &ring->bf);
- if (err) {
- en_dbg(DRV, priv, "working without blueflame (%d)", err);
- ring->bf.uar = &mdev->priv_uar;
- ring->bf.uar->map = mdev->uar_map;
- ring->bf_enabled = false;
- } else
- ring->bf_enabled = true;
-
- return 0;
-
-err_map:
- mlx4_en_unmap_buffer(&ring->wqres.buf);
-err_hwq_res:
- mlx4_free_hwq_res(mdev->dev, &ring->wqres, ring->buf_size);
-err_bounce:
- kfree(ring->bounce_buf);
- ring->bounce_buf = NULL;
-err_tx:
- vfree(ring->tx_info);
- ring->tx_info = NULL;
- return err;
-}
-
-void mlx4_en_destroy_tx_ring(struct mlx4_en_priv *priv,
- struct mlx4_en_tx_ring *ring)
-{
- struct mlx4_en_dev *mdev = priv->mdev;
- en_dbg(DRV, priv, "Destroying tx ring, qpn: %d\n", ring->qpn);
-
- if (ring->bf_enabled)
- mlx4_bf_free(mdev->dev, &ring->bf);
- mlx4_qp_remove(mdev->dev, &ring->qp);
- mlx4_qp_free(mdev->dev, &ring->qp);
- mlx4_qp_release_range(mdev->dev, ring->qpn, 1);
- mlx4_en_unmap_buffer(&ring->wqres.buf);
- mlx4_free_hwq_res(mdev->dev, &ring->wqres, ring->buf_size);
- kfree(ring->bounce_buf);
- ring->bounce_buf = NULL;
- vfree(ring->tx_info);
- ring->tx_info = NULL;
-}
-
-int mlx4_en_activate_tx_ring(struct mlx4_en_priv *priv,
- struct mlx4_en_tx_ring *ring,
- int cq)
-{
- struct mlx4_en_dev *mdev = priv->mdev;
- int err;
-
- ring->cqn = cq;
- ring->prod = 0;
- ring->cons = 0xffffffff;
- ring->last_nr_txbb = 1;
- ring->poll_cnt = 0;
- ring->blocked = 0;
- memset(ring->tx_info, 0, ring->size * sizeof(struct mlx4_en_tx_info));
- memset(ring->buf, 0, ring->buf_size);
-
- ring->qp_state = MLX4_QP_STATE_RST;
- ring->doorbell_qpn = swab32(ring->qp.qpn << 8);
-
- mlx4_en_fill_qp_context(priv, ring->size, ring->stride, 1, 0, ring->qpn,
- ring->cqn, &ring->context);
- if (ring->bf_enabled)
- ring->context.usr_page = cpu_to_be32(ring->bf.uar->index);
-
- err = mlx4_qp_to_ready(mdev->dev, &ring->wqres.mtt, &ring->context,
- &ring->qp, &ring->qp_state);
-
- return err;
-}
-
-void mlx4_en_deactivate_tx_ring(struct mlx4_en_priv *priv,
- struct mlx4_en_tx_ring *ring)
-{
- struct mlx4_en_dev *mdev = priv->mdev;
-
- mlx4_qp_modify(mdev->dev, NULL, ring->qp_state,
- MLX4_QP_STATE_RST, NULL, 0, 0, &ring->qp);
-}
-
-
-static u32 mlx4_en_free_tx_desc(struct mlx4_en_priv *priv,
- struct mlx4_en_tx_ring *ring,
- int index, u8 owner)
-{
- struct mlx4_en_dev *mdev = priv->mdev;
- struct mlx4_en_tx_info *tx_info = &ring->tx_info[index];
- struct mlx4_en_tx_desc *tx_desc = ring->buf + index * TXBB_SIZE;
- struct mlx4_wqe_data_seg *data = (void *) tx_desc + tx_info->data_offset;
- struct sk_buff *skb = tx_info->skb;
- struct skb_frag_struct *frag;
- void *end = ring->buf + ring->buf_size;
- int frags = skb_shinfo(skb)->nr_frags;
- int i;
- __be32 *ptr = (__be32 *)tx_desc;
- __be32 stamp = cpu_to_be32(STAMP_VAL | (!!owner << STAMP_SHIFT));
-
- /* Optimize the common case when there are no wraparounds */
- if (likely((void *) tx_desc + tx_info->nr_txbb * TXBB_SIZE <= end)) {
- if (!tx_info->inl) {
- if (tx_info->linear) {
- pci_unmap_single(mdev->pdev,
- (dma_addr_t) be64_to_cpu(data->addr),
- be32_to_cpu(data->byte_count),
- PCI_DMA_TODEVICE);
- ++data;
- }
-
- for (i = 0; i < frags; i++) {
- frag = &skb_shinfo(skb)->frags[i];
- pci_unmap_page(mdev->pdev,
- (dma_addr_t) be64_to_cpu(data[i].addr),
- frag->size, PCI_DMA_TODEVICE);
- }
- }
- /* Stamp the freed descriptor */
- for (i = 0; i < tx_info->nr_txbb * TXBB_SIZE; i += STAMP_STRIDE) {
- *ptr = stamp;
- ptr += STAMP_DWORDS;
- }
-
- } else {
- if (!tx_info->inl) {
- if ((void *) data >= end) {
- data = ring->buf + ((void *)data - end);
- }
-
- if (tx_info->linear) {
- pci_unmap_single(mdev->pdev,
- (dma_addr_t) be64_to_cpu(data->addr),
- be32_to_cpu(data->byte_count),
- PCI_DMA_TODEVICE);
- ++data;
- }
-
- for (i = 0; i < frags; i++) {
- /* Check for wraparound before unmapping */
- if ((void *) data >= end)
- data = ring->buf;
- frag = &skb_shinfo(skb)->frags[i];
- pci_unmap_page(mdev->pdev,
- (dma_addr_t) be64_to_cpu(data->addr),
- frag->size, PCI_DMA_TODEVICE);
- ++data;
- }
- }
- /* Stamp the freed descriptor */
- for (i = 0; i < tx_info->nr_txbb * TXBB_SIZE; i += STAMP_STRIDE) {
- *ptr = stamp;
- ptr += STAMP_DWORDS;
- if ((void *) ptr >= end) {
- ptr = ring->buf;
- stamp ^= cpu_to_be32(0x80000000);
- }
- }
-
- }
- dev_kfree_skb_any(skb);
- return tx_info->nr_txbb;
-}
-
-
-int mlx4_en_free_tx_buf(struct net_device *dev, struct mlx4_en_tx_ring *ring)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
- int cnt = 0;
-
- /* Skip last polled descriptor */
- ring->cons += ring->last_nr_txbb;
- en_dbg(DRV, priv, "Freeing Tx buf - cons:0x%x prod:0x%x\n",
- ring->cons, ring->prod);
-
- if ((u32) (ring->prod - ring->cons) > ring->size) {
- if (netif_msg_tx_err(priv))
- en_warn(priv, "Tx consumer passed producer!\n");
- return 0;
- }
-
- while (ring->cons != ring->prod) {
- ring->last_nr_txbb = mlx4_en_free_tx_desc(priv, ring,
- ring->cons & ring->size_mask,
- !!(ring->cons & ring->size));
- ring->cons += ring->last_nr_txbb;
- cnt++;
- }
-
- if (cnt)
- en_dbg(DRV, priv, "Freed %d uncompleted tx descriptors\n", cnt);
-
- return cnt;
-}
-
-
-static void mlx4_en_process_tx_cq(struct net_device *dev, struct mlx4_en_cq *cq)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
- struct mlx4_cq *mcq = &cq->mcq;
- struct mlx4_en_tx_ring *ring = &priv->tx_ring[cq->ring];
- struct mlx4_cqe *cqe = cq->buf;
- u16 index;
- u16 new_index;
- u32 txbbs_skipped = 0;
- u32 cq_last_sav;
-
- /* index always points to the first TXBB of the last polled descriptor */
- index = ring->cons & ring->size_mask;
- new_index = be16_to_cpu(cqe->wqe_index) & ring->size_mask;
- if (index == new_index)
- return;
-
- if (!priv->port_up)
- return;
-
- /*
- * We use a two-stage loop:
- * - the first samples the HW-updated CQE
- * - the second frees TXBBs until the last sample
- * This lets us amortize CQE cache misses, while still polling the CQ
- * until is quiescent.
- */
- cq_last_sav = mcq->cons_index;
- do {
- do {
- /* Skip over last polled CQE */
- index = (index + ring->last_nr_txbb) & ring->size_mask;
- txbbs_skipped += ring->last_nr_txbb;
-
- /* Poll next CQE */
- ring->last_nr_txbb = mlx4_en_free_tx_desc(
- priv, ring, index,
- !!((ring->cons + txbbs_skipped) &
- ring->size));
- ++mcq->cons_index;
-
- } while (index != new_index);
-
- new_index = be16_to_cpu(cqe->wqe_index) & ring->size_mask;
- } while (index != new_index);
- AVG_PERF_COUNTER(priv->pstats.tx_coal_avg,
- (u32) (mcq->cons_index - cq_last_sav));
-
- /*
- * To prevent CQ overflow we first update CQ consumer and only then
- * the ring consumer.
- */
- mlx4_cq_set_ci(mcq);
- wmb();
- ring->cons += txbbs_skipped;
-
- /* Wakeup Tx queue if this ring stopped it */
- if (unlikely(ring->blocked)) {
- if ((u32) (ring->prod - ring->cons) <=
- ring->size - HEADROOM - MAX_DESC_TXBBS) {
- ring->blocked = 0;
- netif_tx_wake_queue(netdev_get_tx_queue(dev, cq->ring));
- priv->port_stats.wake_queue++;
- }
- }
-}
-
-void mlx4_en_tx_irq(struct mlx4_cq *mcq)
-{
- struct mlx4_en_cq *cq = container_of(mcq, struct mlx4_en_cq, mcq);
- struct mlx4_en_priv *priv = netdev_priv(cq->dev);
- struct mlx4_en_tx_ring *ring = &priv->tx_ring[cq->ring];
-
- if (!spin_trylock(&ring->comp_lock))
- return;
- mlx4_en_process_tx_cq(cq->dev, cq);
- mod_timer(&cq->timer, jiffies + 1);
- spin_unlock(&ring->comp_lock);
-}
-
-
-void mlx4_en_poll_tx_cq(unsigned long data)
-{
- struct mlx4_en_cq *cq = (struct mlx4_en_cq *) data;
- struct mlx4_en_priv *priv = netdev_priv(cq->dev);
- struct mlx4_en_tx_ring *ring = &priv->tx_ring[cq->ring];
- u32 inflight;
-
- INC_PERF_COUNTER(priv->pstats.tx_poll);
-
- if (!spin_trylock_irq(&ring->comp_lock)) {
- mod_timer(&cq->timer, jiffies + MLX4_EN_TX_POLL_TIMEOUT);
- return;
- }
- mlx4_en_process_tx_cq(cq->dev, cq);
- inflight = (u32) (ring->prod - ring->cons - ring->last_nr_txbb);
-
- /* If there are still packets in flight and the timer has not already
- * been scheduled by the Tx routine then schedule it here to guarantee
- * completion processing of these packets */
- if (inflight && priv->port_up)
- mod_timer(&cq->timer, jiffies + MLX4_EN_TX_POLL_TIMEOUT);
-
- spin_unlock_irq(&ring->comp_lock);
-}
-
-static struct mlx4_en_tx_desc *mlx4_en_bounce_to_desc(struct mlx4_en_priv *priv,
- struct mlx4_en_tx_ring *ring,
- u32 index,
- unsigned int desc_size)
-{
- u32 copy = (ring->size - index) * TXBB_SIZE;
- int i;
-
- for (i = desc_size - copy - 4; i >= 0; i -= 4) {
- if ((i & (TXBB_SIZE - 1)) == 0)
- wmb();
-
- *((u32 *) (ring->buf + i)) =
- *((u32 *) (ring->bounce_buf + copy + i));
- }
-
- for (i = copy - 4; i >= 4 ; i -= 4) {
- if ((i & (TXBB_SIZE - 1)) == 0)
- wmb();
-
- *((u32 *) (ring->buf + index * TXBB_SIZE + i)) =
- *((u32 *) (ring->bounce_buf + i));
- }
-
- /* Return real descriptor location */
- return ring->buf + index * TXBB_SIZE;
-}
-
-static inline void mlx4_en_xmit_poll(struct mlx4_en_priv *priv, int tx_ind)
-{
- struct mlx4_en_cq *cq = &priv->tx_cq[tx_ind];
- struct mlx4_en_tx_ring *ring = &priv->tx_ring[tx_ind];
- unsigned long flags;
-
- /* If we don't have a pending timer, set one up to catch our recent
- post in case the interface becomes idle */
- if (!timer_pending(&cq->timer))
- mod_timer(&cq->timer, jiffies + MLX4_EN_TX_POLL_TIMEOUT);
-
- /* Poll the CQ every mlx4_en_TX_MODER_POLL packets */
- if ((++ring->poll_cnt & (MLX4_EN_TX_POLL_MODER - 1)) == 0)
- if (spin_trylock_irqsave(&ring->comp_lock, flags)) {
- mlx4_en_process_tx_cq(priv->dev, cq);
- spin_unlock_irqrestore(&ring->comp_lock, flags);
- }
-}
-
-static void *get_frag_ptr(struct sk_buff *skb)
-{
- struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[0];
- struct page *page = frag->page;
- void *ptr;
-
- ptr = page_address(page);
- if (unlikely(!ptr))
- return NULL;
-
- return ptr + frag->page_offset;
-}
-
-static int is_inline(struct sk_buff *skb, void **pfrag)
-{
- void *ptr;
-
- if (inline_thold && !skb_is_gso(skb) && skb->len <= inline_thold) {
- if (skb_shinfo(skb)->nr_frags == 1) {
- ptr = get_frag_ptr(skb);
- if (unlikely(!ptr))
- return 0;
-
- if (pfrag)
- *pfrag = ptr;
-
- return 1;
- } else if (unlikely(skb_shinfo(skb)->nr_frags))
- return 0;
- else
- return 1;
- }
-
- return 0;
-}
-
-static int inline_size(struct sk_buff *skb)
-{
- if (skb->len + CTRL_SIZE + sizeof(struct mlx4_wqe_inline_seg)
- <= MLX4_INLINE_ALIGN)
- return ALIGN(skb->len + CTRL_SIZE +
- sizeof(struct mlx4_wqe_inline_seg), 16);
- else
- return ALIGN(skb->len + CTRL_SIZE + 2 *
- sizeof(struct mlx4_wqe_inline_seg), 16);
-}
-
-static int get_real_size(struct sk_buff *skb, struct net_device *dev,
- int *lso_header_size)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
- int real_size;
-
- if (skb_is_gso(skb)) {
- *lso_header_size = skb_transport_offset(skb) + tcp_hdrlen(skb);
- real_size = CTRL_SIZE + skb_shinfo(skb)->nr_frags * DS_SIZE +
- ALIGN(*lso_header_size + 4, DS_SIZE);
- if (unlikely(*lso_header_size != skb_headlen(skb))) {
- /* We add a segment for the skb linear buffer only if
- * it contains data */
- if (*lso_header_size < skb_headlen(skb))
- real_size += DS_SIZE;
- else {
- if (netif_msg_tx_err(priv))
- en_warn(priv, "Non-linear headers\n");
- return 0;
- }
- }
- } else {
- *lso_header_size = 0;
- if (!is_inline(skb, NULL))
- real_size = CTRL_SIZE + (skb_shinfo(skb)->nr_frags + 1) * DS_SIZE;
- else
- real_size = inline_size(skb);
- }
-
- return real_size;
-}
-
-static void build_inline_wqe(struct mlx4_en_tx_desc *tx_desc, struct sk_buff *skb,
- int real_size, u16 *vlan_tag, int tx_ind, void *fragptr)
-{
- struct mlx4_wqe_inline_seg *inl = &tx_desc->inl;
- int spc = MLX4_INLINE_ALIGN - CTRL_SIZE - sizeof *inl;
-
- if (skb->len <= spc) {
- inl->byte_count = cpu_to_be32(1 << 31 | skb->len);
- skb_copy_from_linear_data(skb, inl + 1, skb_headlen(skb));
- if (skb_shinfo(skb)->nr_frags)
- memcpy(((void *)(inl + 1)) + skb_headlen(skb), fragptr,
- skb_shinfo(skb)->frags[0].size);
-
- } else {
- inl->byte_count = cpu_to_be32(1 << 31 | spc);
- if (skb_headlen(skb) <= spc) {
- skb_copy_from_linear_data(skb, inl + 1, skb_headlen(skb));
- if (skb_headlen(skb) < spc) {
- memcpy(((void *)(inl + 1)) + skb_headlen(skb),
- fragptr, spc - skb_headlen(skb));
- fragptr += spc - skb_headlen(skb);
- }
- inl = (void *) (inl + 1) + spc;
- memcpy(((void *)(inl + 1)), fragptr, skb->len - spc);
- } else {
- skb_copy_from_linear_data(skb, inl + 1, spc);
- inl = (void *) (inl + 1) + spc;
- skb_copy_from_linear_data_offset(skb, spc, inl + 1,
- skb_headlen(skb) - spc);
- if (skb_shinfo(skb)->nr_frags)
- memcpy(((void *)(inl + 1)) + skb_headlen(skb) - spc,
- fragptr, skb_shinfo(skb)->frags[0].size);
- }
-
- wmb();
- inl->byte_count = cpu_to_be32(1 << 31 | (skb->len - spc));
- }
- tx_desc->ctrl.vlan_tag = cpu_to_be16(*vlan_tag);
- tx_desc->ctrl.ins_vlan = MLX4_WQE_CTRL_INS_VLAN * !!(*vlan_tag);
- tx_desc->ctrl.fence_size = (real_size / 16) & 0x3f;
-}
-
-u16 mlx4_en_select_queue(struct net_device *dev, struct sk_buff *skb)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
- u16 vlan_tag = 0;
-
- /* If we support per priority flow control and the packet contains
- * a vlan tag, send the packet to the TX ring assigned to that priority
- */
- if (priv->prof->rx_ppp && vlan_tx_tag_present(skb)) {
- vlan_tag = vlan_tx_tag_get(skb);
- return MLX4_EN_NUM_TX_RINGS + (vlan_tag >> 13);
- }
-
- return skb_tx_hash(dev, skb);
-}
-
-static void mlx4_bf_copy(unsigned long *dst, unsigned long *src, unsigned bytecnt)
-{
- __iowrite64_copy(dst, src, bytecnt / 8);
-}
-
-netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
- struct mlx4_en_dev *mdev = priv->mdev;
- struct mlx4_en_tx_ring *ring;
- struct mlx4_en_cq *cq;
- struct mlx4_en_tx_desc *tx_desc;
- struct mlx4_wqe_data_seg *data;
- struct skb_frag_struct *frag;
- struct mlx4_en_tx_info *tx_info;
- struct ethhdr *ethh;
- u64 mac;
- u32 mac_l, mac_h;
- int tx_ind = 0;
- int nr_txbb;
- int desc_size;
- int real_size;
- dma_addr_t dma;
- u32 index, bf_index;
- __be32 op_own;
- u16 vlan_tag = 0;
- int i;
- int lso_header_size;
- void *fragptr;
- bool bounce = false;
-
- if (!priv->port_up)
- goto tx_drop;
-
- real_size = get_real_size(skb, dev, &lso_header_size);
- if (unlikely(!real_size))
- goto tx_drop;
-
- /* Align descriptor to TXBB size */
- desc_size = ALIGN(real_size, TXBB_SIZE);
- nr_txbb = desc_size / TXBB_SIZE;
- if (unlikely(nr_txbb > MAX_DESC_TXBBS)) {
- if (netif_msg_tx_err(priv))
- en_warn(priv, "Oversized header or SG list\n");
- goto tx_drop;
- }
-
- tx_ind = skb->queue_mapping;
- ring = &priv->tx_ring[tx_ind];
- if (vlan_tx_tag_present(skb))
- vlan_tag = vlan_tx_tag_get(skb);
-
- /* Check available TXBBs And 2K spare for prefetch */
- if (unlikely(((int)(ring->prod - ring->cons)) >
- ring->size - HEADROOM - MAX_DESC_TXBBS)) {
- /* every full Tx ring stops queue */
- netif_tx_stop_queue(netdev_get_tx_queue(dev, tx_ind));
- ring->blocked = 1;
- priv->port_stats.queue_stopped++;
-
- /* Use interrupts to find out when queue opened */
- cq = &priv->tx_cq[tx_ind];
- mlx4_en_arm_cq(priv, cq);
- return NETDEV_TX_BUSY;
- }
-
- /* Track current inflight packets for performance analysis */
- AVG_PERF_COUNTER(priv->pstats.inflight_avg,
- (u32) (ring->prod - ring->cons - 1));
-
- /* Packet is good - grab an index and transmit it */
- index = ring->prod & ring->size_mask;
- bf_index = ring->prod;
-
- /* See if we have enough space for whole descriptor TXBB for setting
- * SW ownership on next descriptor; if not, use a bounce buffer. */
- if (likely(index + nr_txbb <= ring->size))
- tx_desc = ring->buf + index * TXBB_SIZE;
- else {
- tx_desc = (struct mlx4_en_tx_desc *) ring->bounce_buf;
- bounce = true;
- }
-
- /* Save skb in tx_info ring */
- tx_info = &ring->tx_info[index];
- tx_info->skb = skb;
- tx_info->nr_txbb = nr_txbb;
-
- /* Prepare ctrl segement apart opcode+ownership, which depends on
- * whether LSO is used */
- tx_desc->ctrl.vlan_tag = cpu_to_be16(vlan_tag);
- tx_desc->ctrl.ins_vlan = MLX4_WQE_CTRL_INS_VLAN * !!vlan_tag;
- tx_desc->ctrl.fence_size = (real_size / 16) & 0x3f;
- tx_desc->ctrl.srcrb_flags = cpu_to_be32(MLX4_WQE_CTRL_CQ_UPDATE |
- MLX4_WQE_CTRL_SOLICITED);
- if (likely(skb->ip_summed == CHECKSUM_PARTIAL)) {
- tx_desc->ctrl.srcrb_flags |= cpu_to_be32(MLX4_WQE_CTRL_IP_CSUM |
- MLX4_WQE_CTRL_TCP_UDP_CSUM);
- priv->port_stats.tx_chksum_offload++;
- }
-
- if (unlikely(priv->validate_loopback)) {
- /* Copy dst mac address to wqe */
- skb_reset_mac_header(skb);
- ethh = eth_hdr(skb);
- if (ethh && ethh->h_dest) {
- mac = mlx4_en_mac_to_u64(ethh->h_dest);
- mac_h = (u32) ((mac & 0xffff00000000ULL) >> 16);
- mac_l = (u32) (mac & 0xffffffff);
- tx_desc->ctrl.srcrb_flags |= cpu_to_be32(mac_h);
- tx_desc->ctrl.imm = cpu_to_be32(mac_l);
- }
- }
-
- /* Handle LSO (TSO) packets */
- if (lso_header_size) {
- /* Mark opcode as LSO */
- op_own = cpu_to_be32(MLX4_OPCODE_LSO | (1 << 6)) |
- ((ring->prod & ring->size) ?
- cpu_to_be32(MLX4_EN_BIT_DESC_OWN) : 0);
-
- /* Fill in the LSO prefix */
- tx_desc->lso.mss_hdr_size = cpu_to_be32(
- skb_shinfo(skb)->gso_size << 16 | lso_header_size);
-
- /* Copy headers;
- * note that we already verified that it is linear */
- memcpy(tx_desc->lso.header, skb->data, lso_header_size);
- data = ((void *) &tx_desc->lso +
- ALIGN(lso_header_size + 4, DS_SIZE));
-
- priv->port_stats.tso_packets++;
- i = ((skb->len - lso_header_size) / skb_shinfo(skb)->gso_size) +
- !!((skb->len - lso_header_size) % skb_shinfo(skb)->gso_size);
- ring->bytes += skb->len + (i - 1) * lso_header_size;
- ring->packets += i;
- } else {
- /* Normal (Non LSO) packet */
- op_own = cpu_to_be32(MLX4_OPCODE_SEND) |
- ((ring->prod & ring->size) ?
- cpu_to_be32(MLX4_EN_BIT_DESC_OWN) : 0);
- data = &tx_desc->data;
- ring->bytes += max(skb->len, (unsigned int) ETH_ZLEN);
- ring->packets++;
-
- }
- AVG_PERF_COUNTER(priv->pstats.tx_pktsz_avg, skb->len);
-
-
- /* valid only for none inline segments */
- tx_info->data_offset = (void *) data - (void *) tx_desc;
-
- tx_info->linear = (lso_header_size < skb_headlen(skb) && !is_inline(skb, NULL)) ? 1 : 0;
- data += skb_shinfo(skb)->nr_frags + tx_info->linear - 1;
-
- if (!is_inline(skb, &fragptr)) {
- /* Map fragments */
- for (i = skb_shinfo(skb)->nr_frags - 1; i >= 0; i--) {
- frag = &skb_shinfo(skb)->frags[i];
- dma = pci_map_page(mdev->dev->pdev, frag->page, frag->page_offset,
- frag->size, PCI_DMA_TODEVICE);
- data->addr = cpu_to_be64(dma);
- data->lkey = cpu_to_be32(mdev->mr.key);
- wmb();
- data->byte_count = cpu_to_be32(frag->size);
- --data;
- }
-
- /* Map linear part */
- if (tx_info->linear) {
- dma = pci_map_single(mdev->dev->pdev, skb->data + lso_header_size,
- skb_headlen(skb) - lso_header_size, PCI_DMA_TODEVICE);
- data->addr = cpu_to_be64(dma);
- data->lkey = cpu_to_be32(mdev->mr.key);
- wmb();
- data->byte_count = cpu_to_be32(skb_headlen(skb) - lso_header_size);
- }
- tx_info->inl = 0;
- } else {
- build_inline_wqe(tx_desc, skb, real_size, &vlan_tag, tx_ind, fragptr);
- tx_info->inl = 1;
- }
-
- ring->prod += nr_txbb;
-
- /* If we used a bounce buffer then copy descriptor back into place */
- if (bounce)
- tx_desc = mlx4_en_bounce_to_desc(priv, ring, index, desc_size);
-
- /* Run destructor before passing skb to HW */
- if (likely(!skb_shared(skb)))
- skb_orphan(skb);
-
- if (ring->bf_enabled && desc_size <= MAX_BF && !bounce && !vlan_tag) {
- *(u32 *) (&tx_desc->ctrl.vlan_tag) |= ring->doorbell_qpn;
- op_own |= htonl((bf_index & 0xffff) << 8);
- /* Ensure new descirptor hits memory
- * before setting ownership of this descriptor to HW */
- wmb();
- tx_desc->ctrl.owner_opcode = op_own;
-
- wmb();
-
- mlx4_bf_copy(ring->bf.reg + ring->bf.offset, (unsigned long *) &tx_desc->ctrl,
- desc_size);
-
- wmb();
-
- ring->bf.offset ^= ring->bf.buf_size;
- } else {
- /* Ensure new descirptor hits memory
- * before setting ownership of this descriptor to HW */
- wmb();
- tx_desc->ctrl.owner_opcode = op_own;
- wmb();
- writel(ring->doorbell_qpn, ring->bf.uar->map + MLX4_SEND_DOORBELL);
- }
-
- /* Poll CQ here */
- mlx4_en_xmit_poll(priv, tx_ind);
-
- return NETDEV_TX_OK;
-
-tx_drop:
- dev_kfree_skb_any(skb);
- priv->stats.tx_dropped++;
- return NETDEV_TX_OK;
-}
-
+++ /dev/null
-/*
- * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
- * Copyright (c) 2005, 2006, 2007 Cisco Systems, Inc. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include <linux/interrupt.h>
-#include <linux/slab.h>
-#include <linux/mm.h>
-#include <linux/dma-mapping.h>
-
-#include <linux/mlx4/cmd.h>
-
-#include "mlx4.h"
-#include "fw.h"
-
-enum {
- MLX4_IRQNAME_SIZE = 32
-};
-
-enum {
- MLX4_NUM_ASYNC_EQE = 0x100,
- MLX4_NUM_SPARE_EQE = 0x80,
- MLX4_EQ_ENTRY_SIZE = 0x20
-};
-
-/*
- * Must be packed because start is 64 bits but only aligned to 32 bits.
- */
-struct mlx4_eq_context {
- __be32 flags;
- u16 reserved1[3];
- __be16 page_offset;
- u8 log_eq_size;
- u8 reserved2[4];
- u8 eq_period;
- u8 reserved3;
- u8 eq_max_count;
- u8 reserved4[3];
- u8 intr;
- u8 log_page_size;
- u8 reserved5[2];
- u8 mtt_base_addr_h;
- __be32 mtt_base_addr_l;
- u32 reserved6[2];
- __be32 consumer_index;
- __be32 producer_index;
- u32 reserved7[4];
-};
-
-#define MLX4_EQ_STATUS_OK ( 0 << 28)
-#define MLX4_EQ_STATUS_WRITE_FAIL (10 << 28)
-#define MLX4_EQ_OWNER_SW ( 0 << 24)
-#define MLX4_EQ_OWNER_HW ( 1 << 24)
-#define MLX4_EQ_FLAG_EC ( 1 << 18)
-#define MLX4_EQ_FLAG_OI ( 1 << 17)
-#define MLX4_EQ_STATE_ARMED ( 9 << 8)
-#define MLX4_EQ_STATE_FIRED (10 << 8)
-#define MLX4_EQ_STATE_ALWAYS_ARMED (11 << 8)
-
-#define MLX4_ASYNC_EVENT_MASK ((1ull << MLX4_EVENT_TYPE_PATH_MIG) | \
- (1ull << MLX4_EVENT_TYPE_COMM_EST) | \
- (1ull << MLX4_EVENT_TYPE_SQ_DRAINED) | \
- (1ull << MLX4_EVENT_TYPE_CQ_ERROR) | \
- (1ull << MLX4_EVENT_TYPE_WQ_CATAS_ERROR) | \
- (1ull << MLX4_EVENT_TYPE_EEC_CATAS_ERROR) | \
- (1ull << MLX4_EVENT_TYPE_PATH_MIG_FAILED) | \
- (1ull << MLX4_EVENT_TYPE_WQ_INVAL_REQ_ERROR) | \
- (1ull << MLX4_EVENT_TYPE_WQ_ACCESS_ERROR) | \
- (1ull << MLX4_EVENT_TYPE_PORT_CHANGE) | \
- (1ull << MLX4_EVENT_TYPE_ECC_DETECT) | \
- (1ull << MLX4_EVENT_TYPE_SRQ_CATAS_ERROR) | \
- (1ull << MLX4_EVENT_TYPE_SRQ_QP_LAST_WQE) | \
- (1ull << MLX4_EVENT_TYPE_SRQ_LIMIT) | \
- (1ull << MLX4_EVENT_TYPE_CMD))
-
-struct mlx4_eqe {
- u8 reserved1;
- u8 type;
- u8 reserved2;
- u8 subtype;
- union {
- u32 raw[6];
- struct {
- __be32 cqn;
- } __packed comp;
- struct {
- u16 reserved1;
- __be16 token;
- u32 reserved2;
- u8 reserved3[3];
- u8 status;
- __be64 out_param;
- } __packed cmd;
- struct {
- __be32 qpn;
- } __packed qp;
- struct {
- __be32 srqn;
- } __packed srq;
- struct {
- __be32 cqn;
- u32 reserved1;
- u8 reserved2[3];
- u8 syndrome;
- } __packed cq_err;
- struct {
- u32 reserved1[2];
- __be32 port;
- } __packed port_change;
- } event;
- u8 reserved3[3];
- u8 owner;
-} __packed;
-
-static void eq_set_ci(struct mlx4_eq *eq, int req_not)
-{
- __raw_writel((__force u32) cpu_to_be32((eq->cons_index & 0xffffff) |
- req_not << 31),
- eq->doorbell);
- /* We still want ordering, just not swabbing, so add a barrier */
- mb();
-}
-
-static struct mlx4_eqe *get_eqe(struct mlx4_eq *eq, u32 entry)
-{
- unsigned long off = (entry & (eq->nent - 1)) * MLX4_EQ_ENTRY_SIZE;
- return eq->page_list[off / PAGE_SIZE].buf + off % PAGE_SIZE;
-}
-
-static struct mlx4_eqe *next_eqe_sw(struct mlx4_eq *eq)
-{
- struct mlx4_eqe *eqe = get_eqe(eq, eq->cons_index);
- return !!(eqe->owner & 0x80) ^ !!(eq->cons_index & eq->nent) ? NULL : eqe;
-}
-
-static int mlx4_eq_int(struct mlx4_dev *dev, struct mlx4_eq *eq)
-{
- struct mlx4_eqe *eqe;
- int cqn;
- int eqes_found = 0;
- int set_ci = 0;
- int port;
-
- while ((eqe = next_eqe_sw(eq))) {
- /*
- * Make sure we read EQ entry contents after we've
- * checked the ownership bit.
- */
- rmb();
-
- switch (eqe->type) {
- case MLX4_EVENT_TYPE_COMP:
- cqn = be32_to_cpu(eqe->event.comp.cqn) & 0xffffff;
- mlx4_cq_completion(dev, cqn);
- break;
-
- case MLX4_EVENT_TYPE_PATH_MIG:
- case MLX4_EVENT_TYPE_COMM_EST:
- case MLX4_EVENT_TYPE_SQ_DRAINED:
- case MLX4_EVENT_TYPE_SRQ_QP_LAST_WQE:
- case MLX4_EVENT_TYPE_WQ_CATAS_ERROR:
- case MLX4_EVENT_TYPE_PATH_MIG_FAILED:
- case MLX4_EVENT_TYPE_WQ_INVAL_REQ_ERROR:
- case MLX4_EVENT_TYPE_WQ_ACCESS_ERROR:
- mlx4_qp_event(dev, be32_to_cpu(eqe->event.qp.qpn) & 0xffffff,
- eqe->type);
- break;
-
- case MLX4_EVENT_TYPE_SRQ_LIMIT:
- case MLX4_EVENT_TYPE_SRQ_CATAS_ERROR:
- mlx4_srq_event(dev, be32_to_cpu(eqe->event.srq.srqn) & 0xffffff,
- eqe->type);
- break;
-
- case MLX4_EVENT_TYPE_CMD:
- mlx4_cmd_event(dev,
- be16_to_cpu(eqe->event.cmd.token),
- eqe->event.cmd.status,
- be64_to_cpu(eqe->event.cmd.out_param));
- break;
-
- case MLX4_EVENT_TYPE_PORT_CHANGE:
- port = be32_to_cpu(eqe->event.port_change.port) >> 28;
- if (eqe->subtype == MLX4_PORT_CHANGE_SUBTYPE_DOWN) {
- mlx4_dispatch_event(dev, MLX4_DEV_EVENT_PORT_DOWN,
- port);
- mlx4_priv(dev)->sense.do_sense_port[port] = 1;
- } else {
- mlx4_dispatch_event(dev, MLX4_DEV_EVENT_PORT_UP,
- port);
- mlx4_priv(dev)->sense.do_sense_port[port] = 0;
- }
- break;
-
- case MLX4_EVENT_TYPE_CQ_ERROR:
- mlx4_warn(dev, "CQ %s on CQN %06x\n",
- eqe->event.cq_err.syndrome == 1 ?
- "overrun" : "access violation",
- be32_to_cpu(eqe->event.cq_err.cqn) & 0xffffff);
- mlx4_cq_event(dev, be32_to_cpu(eqe->event.cq_err.cqn),
- eqe->type);
- break;
-
- case MLX4_EVENT_TYPE_EQ_OVERFLOW:
- mlx4_warn(dev, "EQ overrun on EQN %d\n", eq->eqn);
- break;
-
- case MLX4_EVENT_TYPE_EEC_CATAS_ERROR:
- case MLX4_EVENT_TYPE_ECC_DETECT:
- default:
- mlx4_warn(dev, "Unhandled event %02x(%02x) on EQ %d at index %u\n",
- eqe->type, eqe->subtype, eq->eqn, eq->cons_index);
- break;
- }
-
- ++eq->cons_index;
- eqes_found = 1;
- ++set_ci;
-
- /*
- * The HCA will think the queue has overflowed if we
- * don't tell it we've been processing events. We
- * create our EQs with MLX4_NUM_SPARE_EQE extra
- * entries, so we must update our consumer index at
- * least that often.
- */
- if (unlikely(set_ci >= MLX4_NUM_SPARE_EQE)) {
- eq_set_ci(eq, 0);
- set_ci = 0;
- }
- }
-
- eq_set_ci(eq, 1);
-
- return eqes_found;
-}
-
-static irqreturn_t mlx4_interrupt(int irq, void *dev_ptr)
-{
- struct mlx4_dev *dev = dev_ptr;
- struct mlx4_priv *priv = mlx4_priv(dev);
- int work = 0;
- int i;
-
- writel(priv->eq_table.clr_mask, priv->eq_table.clr_int);
-
- for (i = 0; i < dev->caps.num_comp_vectors + 1; ++i)
- work |= mlx4_eq_int(dev, &priv->eq_table.eq[i]);
-
- return IRQ_RETVAL(work);
-}
-
-static irqreturn_t mlx4_msi_x_interrupt(int irq, void *eq_ptr)
-{
- struct mlx4_eq *eq = eq_ptr;
- struct mlx4_dev *dev = eq->dev;
-
- mlx4_eq_int(dev, eq);
-
- /* MSI-X vectors always belong to us */
- return IRQ_HANDLED;
-}
-
-static int mlx4_MAP_EQ(struct mlx4_dev *dev, u64 event_mask, int unmap,
- int eq_num)
-{
- return mlx4_cmd(dev, event_mask, (unmap << 31) | eq_num,
- 0, MLX4_CMD_MAP_EQ, MLX4_CMD_TIME_CLASS_B);
-}
-
-static int mlx4_SW2HW_EQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
- int eq_num)
-{
- return mlx4_cmd(dev, mailbox->dma, eq_num, 0, MLX4_CMD_SW2HW_EQ,
- MLX4_CMD_TIME_CLASS_A);
-}
-
-static int mlx4_HW2SW_EQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
- int eq_num)
-{
- return mlx4_cmd_box(dev, 0, mailbox->dma, eq_num, 0, MLX4_CMD_HW2SW_EQ,
- MLX4_CMD_TIME_CLASS_A);
-}
-
-static int mlx4_num_eq_uar(struct mlx4_dev *dev)
-{
- /*
- * Each UAR holds 4 EQ doorbells. To figure out how many UARs
- * we need to map, take the difference of highest index and
- * the lowest index we'll use and add 1.
- */
- return (dev->caps.num_comp_vectors + 1 + dev->caps.reserved_eqs +
- dev->caps.comp_pool)/4 - dev->caps.reserved_eqs/4 + 1;
-}
-
-static void __iomem *mlx4_get_eq_uar(struct mlx4_dev *dev, struct mlx4_eq *eq)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- int index;
-
- index = eq->eqn / 4 - dev->caps.reserved_eqs / 4;
-
- if (!priv->eq_table.uar_map[index]) {
- priv->eq_table.uar_map[index] =
- ioremap(pci_resource_start(dev->pdev, 2) +
- ((eq->eqn / 4) << PAGE_SHIFT),
- PAGE_SIZE);
- if (!priv->eq_table.uar_map[index]) {
- mlx4_err(dev, "Couldn't map EQ doorbell for EQN 0x%06x\n",
- eq->eqn);
- return NULL;
- }
- }
-
- return priv->eq_table.uar_map[index] + 0x800 + 8 * (eq->eqn % 4);
-}
-
-static int mlx4_create_eq(struct mlx4_dev *dev, int nent,
- u8 intr, struct mlx4_eq *eq)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- struct mlx4_cmd_mailbox *mailbox;
- struct mlx4_eq_context *eq_context;
- int npages;
- u64 *dma_list = NULL;
- dma_addr_t t;
- u64 mtt_addr;
- int err = -ENOMEM;
- int i;
-
- eq->dev = dev;
- eq->nent = roundup_pow_of_two(max(nent, 2));
- npages = PAGE_ALIGN(eq->nent * MLX4_EQ_ENTRY_SIZE) / PAGE_SIZE;
-
- eq->page_list = kmalloc(npages * sizeof *eq->page_list,
- GFP_KERNEL);
- if (!eq->page_list)
- goto err_out;
-
- for (i = 0; i < npages; ++i)
- eq->page_list[i].buf = NULL;
-
- dma_list = kmalloc(npages * sizeof *dma_list, GFP_KERNEL);
- if (!dma_list)
- goto err_out_free;
-
- mailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(mailbox))
- goto err_out_free;
- eq_context = mailbox->buf;
-
- for (i = 0; i < npages; ++i) {
- eq->page_list[i].buf = dma_alloc_coherent(&dev->pdev->dev,
- PAGE_SIZE, &t, GFP_KERNEL);
- if (!eq->page_list[i].buf)
- goto err_out_free_pages;
-
- dma_list[i] = t;
- eq->page_list[i].map = t;
-
- memset(eq->page_list[i].buf, 0, PAGE_SIZE);
- }
-
- eq->eqn = mlx4_bitmap_alloc(&priv->eq_table.bitmap);
- if (eq->eqn == -1)
- goto err_out_free_pages;
-
- eq->doorbell = mlx4_get_eq_uar(dev, eq);
- if (!eq->doorbell) {
- err = -ENOMEM;
- goto err_out_free_eq;
- }
-
- err = mlx4_mtt_init(dev, npages, PAGE_SHIFT, &eq->mtt);
- if (err)
- goto err_out_free_eq;
-
- err = mlx4_write_mtt(dev, &eq->mtt, 0, npages, dma_list);
- if (err)
- goto err_out_free_mtt;
-
- memset(eq_context, 0, sizeof *eq_context);
- eq_context->flags = cpu_to_be32(MLX4_EQ_STATUS_OK |
- MLX4_EQ_STATE_ARMED);
- eq_context->log_eq_size = ilog2(eq->nent);
- eq_context->intr = intr;
- eq_context->log_page_size = PAGE_SHIFT - MLX4_ICM_PAGE_SHIFT;
-
- mtt_addr = mlx4_mtt_addr(dev, &eq->mtt);
- eq_context->mtt_base_addr_h = mtt_addr >> 32;
- eq_context->mtt_base_addr_l = cpu_to_be32(mtt_addr & 0xffffffff);
-
- err = mlx4_SW2HW_EQ(dev, mailbox, eq->eqn);
- if (err) {
- mlx4_warn(dev, "SW2HW_EQ failed (%d)\n", err);
- goto err_out_free_mtt;
- }
-
- kfree(dma_list);
- mlx4_free_cmd_mailbox(dev, mailbox);
-
- eq->cons_index = 0;
-
- return err;
-
-err_out_free_mtt:
- mlx4_mtt_cleanup(dev, &eq->mtt);
-
-err_out_free_eq:
- mlx4_bitmap_free(&priv->eq_table.bitmap, eq->eqn);
-
-err_out_free_pages:
- for (i = 0; i < npages; ++i)
- if (eq->page_list[i].buf)
- dma_free_coherent(&dev->pdev->dev, PAGE_SIZE,
- eq->page_list[i].buf,
- eq->page_list[i].map);
-
- mlx4_free_cmd_mailbox(dev, mailbox);
-
-err_out_free:
- kfree(eq->page_list);
- kfree(dma_list);
-
-err_out:
- return err;
-}
-
-static void mlx4_free_eq(struct mlx4_dev *dev,
- struct mlx4_eq *eq)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- struct mlx4_cmd_mailbox *mailbox;
- int err;
- int npages = PAGE_ALIGN(MLX4_EQ_ENTRY_SIZE * eq->nent) / PAGE_SIZE;
- int i;
-
- mailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(mailbox))
- return;
-
- err = mlx4_HW2SW_EQ(dev, mailbox, eq->eqn);
- if (err)
- mlx4_warn(dev, "HW2SW_EQ failed (%d)\n", err);
-
- if (0) {
- mlx4_dbg(dev, "Dumping EQ context %02x:\n", eq->eqn);
- for (i = 0; i < sizeof (struct mlx4_eq_context) / 4; ++i) {
- if (i % 4 == 0)
- pr_cont("[%02x] ", i * 4);
- pr_cont(" %08x", be32_to_cpup(mailbox->buf + i * 4));
- if ((i + 1) % 4 == 0)
- pr_cont("\n");
- }
- }
-
- mlx4_mtt_cleanup(dev, &eq->mtt);
- for (i = 0; i < npages; ++i)
- pci_free_consistent(dev->pdev, PAGE_SIZE,
- eq->page_list[i].buf,
- eq->page_list[i].map);
-
- kfree(eq->page_list);
- mlx4_bitmap_free(&priv->eq_table.bitmap, eq->eqn);
- mlx4_free_cmd_mailbox(dev, mailbox);
-}
-
-static void mlx4_free_irqs(struct mlx4_dev *dev)
-{
- struct mlx4_eq_table *eq_table = &mlx4_priv(dev)->eq_table;
- struct mlx4_priv *priv = mlx4_priv(dev);
- int i, vec;
-
- if (eq_table->have_irq)
- free_irq(dev->pdev->irq, dev);
-
- for (i = 0; i < dev->caps.num_comp_vectors + 1; ++i)
- if (eq_table->eq[i].have_irq) {
- free_irq(eq_table->eq[i].irq, eq_table->eq + i);
- eq_table->eq[i].have_irq = 0;
- }
-
- for (i = 0; i < dev->caps.comp_pool; i++) {
- /*
- * Freeing the assigned irq's
- * all bits should be 0, but we need to validate
- */
- if (priv->msix_ctl.pool_bm & 1ULL << i) {
- /* NO need protecting*/
- vec = dev->caps.num_comp_vectors + 1 + i;
- free_irq(priv->eq_table.eq[vec].irq,
- &priv->eq_table.eq[vec]);
- }
- }
-
-
- kfree(eq_table->irq_names);
-}
-
-static int mlx4_map_clr_int(struct mlx4_dev *dev)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
-
- priv->clr_base = ioremap(pci_resource_start(dev->pdev, priv->fw.clr_int_bar) +
- priv->fw.clr_int_base, MLX4_CLR_INT_SIZE);
- if (!priv->clr_base) {
- mlx4_err(dev, "Couldn't map interrupt clear register, aborting.\n");
- return -ENOMEM;
- }
-
- return 0;
-}
-
-static void mlx4_unmap_clr_int(struct mlx4_dev *dev)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
-
- iounmap(priv->clr_base);
-}
-
-int mlx4_alloc_eq_table(struct mlx4_dev *dev)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
-
- priv->eq_table.eq = kcalloc(dev->caps.num_eqs - dev->caps.reserved_eqs,
- sizeof *priv->eq_table.eq, GFP_KERNEL);
- if (!priv->eq_table.eq)
- return -ENOMEM;
-
- return 0;
-}
-
-void mlx4_free_eq_table(struct mlx4_dev *dev)
-{
- kfree(mlx4_priv(dev)->eq_table.eq);
-}
-
-int mlx4_init_eq_table(struct mlx4_dev *dev)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- int err;
- int i;
-
- priv->eq_table.uar_map = kcalloc(sizeof *priv->eq_table.uar_map,
- mlx4_num_eq_uar(dev), GFP_KERNEL);
- if (!priv->eq_table.uar_map) {
- err = -ENOMEM;
- goto err_out_free;
- }
-
- err = mlx4_bitmap_init(&priv->eq_table.bitmap, dev->caps.num_eqs,
- dev->caps.num_eqs - 1, dev->caps.reserved_eqs, 0);
- if (err)
- goto err_out_free;
-
- for (i = 0; i < mlx4_num_eq_uar(dev); ++i)
- priv->eq_table.uar_map[i] = NULL;
-
- err = mlx4_map_clr_int(dev);
- if (err)
- goto err_out_bitmap;
-
- priv->eq_table.clr_mask =
- swab32(1 << (priv->eq_table.inta_pin & 31));
- priv->eq_table.clr_int = priv->clr_base +
- (priv->eq_table.inta_pin < 32 ? 4 : 0);
-
- priv->eq_table.irq_names =
- kmalloc(MLX4_IRQNAME_SIZE * (dev->caps.num_comp_vectors + 1 +
- dev->caps.comp_pool),
- GFP_KERNEL);
- if (!priv->eq_table.irq_names) {
- err = -ENOMEM;
- goto err_out_bitmap;
- }
-
- for (i = 0; i < dev->caps.num_comp_vectors; ++i) {
- err = mlx4_create_eq(dev, dev->caps.num_cqs -
- dev->caps.reserved_cqs +
- MLX4_NUM_SPARE_EQE,
- (dev->flags & MLX4_FLAG_MSI_X) ? i : 0,
- &priv->eq_table.eq[i]);
- if (err) {
- --i;
- goto err_out_unmap;
- }
- }
-
- err = mlx4_create_eq(dev, MLX4_NUM_ASYNC_EQE + MLX4_NUM_SPARE_EQE,
- (dev->flags & MLX4_FLAG_MSI_X) ? dev->caps.num_comp_vectors : 0,
- &priv->eq_table.eq[dev->caps.num_comp_vectors]);
- if (err)
- goto err_out_comp;
-
- /*if additional completion vectors poolsize is 0 this loop will not run*/
- for (i = dev->caps.num_comp_vectors + 1;
- i < dev->caps.num_comp_vectors + dev->caps.comp_pool + 1; ++i) {
-
- err = mlx4_create_eq(dev, dev->caps.num_cqs -
- dev->caps.reserved_cqs +
- MLX4_NUM_SPARE_EQE,
- (dev->flags & MLX4_FLAG_MSI_X) ? i : 0,
- &priv->eq_table.eq[i]);
- if (err) {
- --i;
- goto err_out_unmap;
- }
- }
-
-
- if (dev->flags & MLX4_FLAG_MSI_X) {
- const char *eq_name;
-
- for (i = 0; i < dev->caps.num_comp_vectors + 1; ++i) {
- if (i < dev->caps.num_comp_vectors) {
- snprintf(priv->eq_table.irq_names +
- i * MLX4_IRQNAME_SIZE,
- MLX4_IRQNAME_SIZE,
- "mlx4-comp-%d@pci:%s", i,
- pci_name(dev->pdev));
- } else {
- snprintf(priv->eq_table.irq_names +
- i * MLX4_IRQNAME_SIZE,
- MLX4_IRQNAME_SIZE,
- "mlx4-async@pci:%s",
- pci_name(dev->pdev));
- }
-
- eq_name = priv->eq_table.irq_names +
- i * MLX4_IRQNAME_SIZE;
- err = request_irq(priv->eq_table.eq[i].irq,
- mlx4_msi_x_interrupt, 0, eq_name,
- priv->eq_table.eq + i);
- if (err)
- goto err_out_async;
-
- priv->eq_table.eq[i].have_irq = 1;
- }
- } else {
- snprintf(priv->eq_table.irq_names,
- MLX4_IRQNAME_SIZE,
- DRV_NAME "@pci:%s",
- pci_name(dev->pdev));
- err = request_irq(dev->pdev->irq, mlx4_interrupt,
- IRQF_SHARED, priv->eq_table.irq_names, dev);
- if (err)
- goto err_out_async;
-
- priv->eq_table.have_irq = 1;
- }
-
- err = mlx4_MAP_EQ(dev, MLX4_ASYNC_EVENT_MASK, 0,
- priv->eq_table.eq[dev->caps.num_comp_vectors].eqn);
- if (err)
- mlx4_warn(dev, "MAP_EQ for async EQ %d failed (%d)\n",
- priv->eq_table.eq[dev->caps.num_comp_vectors].eqn, err);
-
- for (i = 0; i < dev->caps.num_comp_vectors + 1; ++i)
- eq_set_ci(&priv->eq_table.eq[i], 1);
-
- return 0;
-
-err_out_async:
- mlx4_free_eq(dev, &priv->eq_table.eq[dev->caps.num_comp_vectors]);
-
-err_out_comp:
- i = dev->caps.num_comp_vectors - 1;
-
-err_out_unmap:
- while (i >= 0) {
- mlx4_free_eq(dev, &priv->eq_table.eq[i]);
- --i;
- }
- mlx4_unmap_clr_int(dev);
- mlx4_free_irqs(dev);
-
-err_out_bitmap:
- mlx4_bitmap_cleanup(&priv->eq_table.bitmap);
-
-err_out_free:
- kfree(priv->eq_table.uar_map);
-
- return err;
-}
-
-void mlx4_cleanup_eq_table(struct mlx4_dev *dev)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- int i;
-
- mlx4_MAP_EQ(dev, MLX4_ASYNC_EVENT_MASK, 1,
- priv->eq_table.eq[dev->caps.num_comp_vectors].eqn);
-
- mlx4_free_irqs(dev);
-
- for (i = 0; i < dev->caps.num_comp_vectors + dev->caps.comp_pool + 1; ++i)
- mlx4_free_eq(dev, &priv->eq_table.eq[i]);
-
- mlx4_unmap_clr_int(dev);
-
- for (i = 0; i < mlx4_num_eq_uar(dev); ++i)
- if (priv->eq_table.uar_map[i])
- iounmap(priv->eq_table.uar_map[i]);
-
- mlx4_bitmap_cleanup(&priv->eq_table.bitmap);
-
- kfree(priv->eq_table.uar_map);
-}
-
-/* A test that verifies that we can accept interrupts on all
- * the irq vectors of the device.
- * Interrupts are checked using the NOP command.
- */
-int mlx4_test_interrupts(struct mlx4_dev *dev)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- int i;
- int err;
-
- err = mlx4_NOP(dev);
- /* When not in MSI_X, there is only one irq to check */
- if (!(dev->flags & MLX4_FLAG_MSI_X))
- return err;
-
- /* A loop over all completion vectors, for each vector we will check
- * whether it works by mapping command completions to that vector
- * and performing a NOP command
- */
- for(i = 0; !err && (i < dev->caps.num_comp_vectors); ++i) {
- /* Temporary use polling for command completions */
- mlx4_cmd_use_polling(dev);
-
- /* Map the new eq to handle all asyncronous events */
- err = mlx4_MAP_EQ(dev, MLX4_ASYNC_EVENT_MASK, 0,
- priv->eq_table.eq[i].eqn);
- if (err) {
- mlx4_warn(dev, "Failed mapping eq for interrupt test\n");
- mlx4_cmd_use_events(dev);
- break;
- }
-
- /* Go back to using events */
- mlx4_cmd_use_events(dev);
- err = mlx4_NOP(dev);
- }
-
- /* Return to default */
- mlx4_MAP_EQ(dev, MLX4_ASYNC_EVENT_MASK, 0,
- priv->eq_table.eq[dev->caps.num_comp_vectors].eqn);
- return err;
-}
-EXPORT_SYMBOL(mlx4_test_interrupts);
-
-int mlx4_assign_eq(struct mlx4_dev *dev, char* name, int * vector)
-{
-
- struct mlx4_priv *priv = mlx4_priv(dev);
- int vec = 0, err = 0, i;
-
- spin_lock(&priv->msix_ctl.pool_lock);
- for (i = 0; !vec && i < dev->caps.comp_pool; i++) {
- if (~priv->msix_ctl.pool_bm & 1ULL << i) {
- priv->msix_ctl.pool_bm |= 1ULL << i;
- vec = dev->caps.num_comp_vectors + 1 + i;
- snprintf(priv->eq_table.irq_names +
- vec * MLX4_IRQNAME_SIZE,
- MLX4_IRQNAME_SIZE, "%s", name);
- err = request_irq(priv->eq_table.eq[vec].irq,
- mlx4_msi_x_interrupt, 0,
- &priv->eq_table.irq_names[vec<<5],
- priv->eq_table.eq + vec);
- if (err) {
- /*zero out bit by fliping it*/
- priv->msix_ctl.pool_bm ^= 1 << i;
- vec = 0;
- continue;
- /*we dont want to break here*/
- }
- eq_set_ci(&priv->eq_table.eq[vec], 1);
- }
- }
- spin_unlock(&priv->msix_ctl.pool_lock);
-
- if (vec) {
- *vector = vec;
- } else {
- *vector = 0;
- err = (i == dev->caps.comp_pool) ? -ENOSPC : err;
- }
- return err;
-}
-EXPORT_SYMBOL(mlx4_assign_eq);
-
-void mlx4_release_eq(struct mlx4_dev *dev, int vec)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- /*bm index*/
- int i = vec - dev->caps.num_comp_vectors - 1;
-
- if (likely(i >= 0)) {
- /*sanity check , making sure were not trying to free irq's
- Belonging to a legacy EQ*/
- spin_lock(&priv->msix_ctl.pool_lock);
- if (priv->msix_ctl.pool_bm & 1ULL << i) {
- free_irq(priv->eq_table.eq[vec].irq,
- &priv->eq_table.eq[vec]);
- priv->msix_ctl.pool_bm &= ~(1ULL << i);
- }
- spin_unlock(&priv->msix_ctl.pool_lock);
- }
-
-}
-EXPORT_SYMBOL(mlx4_release_eq);
-
+++ /dev/null
-/*
- * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
- * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
- * Copyright (c) 2005, 2006, 2007 Cisco Systems, Inc. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include <linux/mlx4/cmd.h>
-#include <linux/cache.h>
-
-#include "fw.h"
-#include "icm.h"
-
-enum {
- MLX4_COMMAND_INTERFACE_MIN_REV = 2,
- MLX4_COMMAND_INTERFACE_MAX_REV = 3,
- MLX4_COMMAND_INTERFACE_NEW_PORT_CMDS = 3,
-};
-
-extern void __buggy_use_of_MLX4_GET(void);
-extern void __buggy_use_of_MLX4_PUT(void);
-
-static int enable_qos;
-module_param(enable_qos, bool, 0444);
-MODULE_PARM_DESC(enable_qos, "Enable Quality of Service support in the HCA (default: off)");
-
-#define MLX4_GET(dest, source, offset) \
- do { \
- void *__p = (char *) (source) + (offset); \
- switch (sizeof (dest)) { \
- case 1: (dest) = *(u8 *) __p; break; \
- case 2: (dest) = be16_to_cpup(__p); break; \
- case 4: (dest) = be32_to_cpup(__p); break; \
- case 8: (dest) = be64_to_cpup(__p); break; \
- default: __buggy_use_of_MLX4_GET(); \
- } \
- } while (0)
-
-#define MLX4_PUT(dest, source, offset) \
- do { \
- void *__d = ((char *) (dest) + (offset)); \
- switch (sizeof(source)) { \
- case 1: *(u8 *) __d = (source); break; \
- case 2: *(__be16 *) __d = cpu_to_be16(source); break; \
- case 4: *(__be32 *) __d = cpu_to_be32(source); break; \
- case 8: *(__be64 *) __d = cpu_to_be64(source); break; \
- default: __buggy_use_of_MLX4_PUT(); \
- } \
- } while (0)
-
-static void dump_dev_cap_flags(struct mlx4_dev *dev, u64 flags)
-{
- static const char *fname[] = {
- [ 0] = "RC transport",
- [ 1] = "UC transport",
- [ 2] = "UD transport",
- [ 3] = "XRC transport",
- [ 4] = "reliable multicast",
- [ 5] = "FCoIB support",
- [ 6] = "SRQ support",
- [ 7] = "IPoIB checksum offload",
- [ 8] = "P_Key violation counter",
- [ 9] = "Q_Key violation counter",
- [10] = "VMM",
- [12] = "DPDP",
- [15] = "Big LSO headers",
- [16] = "MW support",
- [17] = "APM support",
- [18] = "Atomic ops support",
- [19] = "Raw multicast support",
- [20] = "Address vector port checking support",
- [21] = "UD multicast support",
- [24] = "Demand paging support",
- [25] = "Router support",
- [30] = "IBoE support",
- [32] = "Unicast loopback support",
- [38] = "Wake On LAN support",
- [40] = "UDP RSS support",
- [41] = "Unicast VEP steering support",
- [42] = "Multicast VEP steering support",
- [48] = "Counters support",
- };
- int i;
-
- mlx4_dbg(dev, "DEV_CAP flags:\n");
- for (i = 0; i < ARRAY_SIZE(fname); ++i)
- if (fname[i] && (flags & (1LL << i)))
- mlx4_dbg(dev, " %s\n", fname[i]);
-}
-
-int mlx4_MOD_STAT_CFG(struct mlx4_dev *dev, struct mlx4_mod_stat_cfg *cfg)
-{
- struct mlx4_cmd_mailbox *mailbox;
- u32 *inbox;
- int err = 0;
-
-#define MOD_STAT_CFG_IN_SIZE 0x100
-
-#define MOD_STAT_CFG_PG_SZ_M_OFFSET 0x002
-#define MOD_STAT_CFG_PG_SZ_OFFSET 0x003
-
- mailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(mailbox))
- return PTR_ERR(mailbox);
- inbox = mailbox->buf;
-
- memset(inbox, 0, MOD_STAT_CFG_IN_SIZE);
-
- MLX4_PUT(inbox, cfg->log_pg_sz, MOD_STAT_CFG_PG_SZ_OFFSET);
- MLX4_PUT(inbox, cfg->log_pg_sz_m, MOD_STAT_CFG_PG_SZ_M_OFFSET);
-
- err = mlx4_cmd(dev, mailbox->dma, 0, 0, MLX4_CMD_MOD_STAT_CFG,
- MLX4_CMD_TIME_CLASS_A);
-
- mlx4_free_cmd_mailbox(dev, mailbox);
- return err;
-}
-
-int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
-{
- struct mlx4_cmd_mailbox *mailbox;
- u32 *outbox;
- u8 field;
- u32 field32, flags, ext_flags;
- u16 size;
- u16 stat_rate;
- int err;
- int i;
-
-#define QUERY_DEV_CAP_OUT_SIZE 0x100
-#define QUERY_DEV_CAP_MAX_SRQ_SZ_OFFSET 0x10
-#define QUERY_DEV_CAP_MAX_QP_SZ_OFFSET 0x11
-#define QUERY_DEV_CAP_RSVD_QP_OFFSET 0x12
-#define QUERY_DEV_CAP_MAX_QP_OFFSET 0x13
-#define QUERY_DEV_CAP_RSVD_SRQ_OFFSET 0x14
-#define QUERY_DEV_CAP_MAX_SRQ_OFFSET 0x15
-#define QUERY_DEV_CAP_RSVD_EEC_OFFSET 0x16
-#define QUERY_DEV_CAP_MAX_EEC_OFFSET 0x17
-#define QUERY_DEV_CAP_MAX_CQ_SZ_OFFSET 0x19
-#define QUERY_DEV_CAP_RSVD_CQ_OFFSET 0x1a
-#define QUERY_DEV_CAP_MAX_CQ_OFFSET 0x1b
-#define QUERY_DEV_CAP_MAX_MPT_OFFSET 0x1d
-#define QUERY_DEV_CAP_RSVD_EQ_OFFSET 0x1e
-#define QUERY_DEV_CAP_MAX_EQ_OFFSET 0x1f
-#define QUERY_DEV_CAP_RSVD_MTT_OFFSET 0x20
-#define QUERY_DEV_CAP_MAX_MRW_SZ_OFFSET 0x21
-#define QUERY_DEV_CAP_RSVD_MRW_OFFSET 0x22
-#define QUERY_DEV_CAP_MAX_MTT_SEG_OFFSET 0x23
-#define QUERY_DEV_CAP_MAX_AV_OFFSET 0x27
-#define QUERY_DEV_CAP_MAX_REQ_QP_OFFSET 0x29
-#define QUERY_DEV_CAP_MAX_RES_QP_OFFSET 0x2b
-#define QUERY_DEV_CAP_MAX_GSO_OFFSET 0x2d
-#define QUERY_DEV_CAP_MAX_RDMA_OFFSET 0x2f
-#define QUERY_DEV_CAP_RSZ_SRQ_OFFSET 0x33
-#define QUERY_DEV_CAP_ACK_DELAY_OFFSET 0x35
-#define QUERY_DEV_CAP_MTU_WIDTH_OFFSET 0x36
-#define QUERY_DEV_CAP_VL_PORT_OFFSET 0x37
-#define QUERY_DEV_CAP_MAX_MSG_SZ_OFFSET 0x38
-#define QUERY_DEV_CAP_MAX_GID_OFFSET 0x3b
-#define QUERY_DEV_CAP_RATE_SUPPORT_OFFSET 0x3c
-#define QUERY_DEV_CAP_MAX_PKEY_OFFSET 0x3f
-#define QUERY_DEV_CAP_EXT_FLAGS_OFFSET 0x40
-#define QUERY_DEV_CAP_FLAGS_OFFSET 0x44
-#define QUERY_DEV_CAP_RSVD_UAR_OFFSET 0x48
-#define QUERY_DEV_CAP_UAR_SZ_OFFSET 0x49
-#define QUERY_DEV_CAP_PAGE_SZ_OFFSET 0x4b
-#define QUERY_DEV_CAP_BF_OFFSET 0x4c
-#define QUERY_DEV_CAP_LOG_BF_REG_SZ_OFFSET 0x4d
-#define QUERY_DEV_CAP_LOG_MAX_BF_REGS_PER_PAGE_OFFSET 0x4e
-#define QUERY_DEV_CAP_LOG_MAX_BF_PAGES_OFFSET 0x4f
-#define QUERY_DEV_CAP_MAX_SG_SQ_OFFSET 0x51
-#define QUERY_DEV_CAP_MAX_DESC_SZ_SQ_OFFSET 0x52
-#define QUERY_DEV_CAP_MAX_SG_RQ_OFFSET 0x55
-#define QUERY_DEV_CAP_MAX_DESC_SZ_RQ_OFFSET 0x56
-#define QUERY_DEV_CAP_MAX_QP_MCG_OFFSET 0x61
-#define QUERY_DEV_CAP_RSVD_MCG_OFFSET 0x62
-#define QUERY_DEV_CAP_MAX_MCG_OFFSET 0x63
-#define QUERY_DEV_CAP_RSVD_PD_OFFSET 0x64
-#define QUERY_DEV_CAP_MAX_PD_OFFSET 0x65
-#define QUERY_DEV_CAP_MAX_COUNTERS_OFFSET 0x68
-#define QUERY_DEV_CAP_RDMARC_ENTRY_SZ_OFFSET 0x80
-#define QUERY_DEV_CAP_QPC_ENTRY_SZ_OFFSET 0x82
-#define QUERY_DEV_CAP_AUX_ENTRY_SZ_OFFSET 0x84
-#define QUERY_DEV_CAP_ALTC_ENTRY_SZ_OFFSET 0x86
-#define QUERY_DEV_CAP_EQC_ENTRY_SZ_OFFSET 0x88
-#define QUERY_DEV_CAP_CQC_ENTRY_SZ_OFFSET 0x8a
-#define QUERY_DEV_CAP_SRQ_ENTRY_SZ_OFFSET 0x8c
-#define QUERY_DEV_CAP_C_MPT_ENTRY_SZ_OFFSET 0x8e
-#define QUERY_DEV_CAP_MTT_ENTRY_SZ_OFFSET 0x90
-#define QUERY_DEV_CAP_D_MPT_ENTRY_SZ_OFFSET 0x92
-#define QUERY_DEV_CAP_BMME_FLAGS_OFFSET 0x94
-#define QUERY_DEV_CAP_RSVD_LKEY_OFFSET 0x98
-#define QUERY_DEV_CAP_MAX_ICM_SZ_OFFSET 0xa0
-
- mailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(mailbox))
- return PTR_ERR(mailbox);
- outbox = mailbox->buf;
-
- err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_DEV_CAP,
- MLX4_CMD_TIME_CLASS_A);
- if (err)
- goto out;
-
- MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_QP_OFFSET);
- dev_cap->reserved_qps = 1 << (field & 0xf);
- MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_QP_OFFSET);
- dev_cap->max_qps = 1 << (field & 0x1f);
- MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_SRQ_OFFSET);
- dev_cap->reserved_srqs = 1 << (field >> 4);
- MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SRQ_OFFSET);
- dev_cap->max_srqs = 1 << (field & 0x1f);
- MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_CQ_SZ_OFFSET);
- dev_cap->max_cq_sz = 1 << field;
- MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_CQ_OFFSET);
- dev_cap->reserved_cqs = 1 << (field & 0xf);
- MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_CQ_OFFSET);
- dev_cap->max_cqs = 1 << (field & 0x1f);
- MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MPT_OFFSET);
- dev_cap->max_mpts = 1 << (field & 0x3f);
- MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_EQ_OFFSET);
- dev_cap->reserved_eqs = field & 0xf;
- MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_EQ_OFFSET);
- dev_cap->max_eqs = 1 << (field & 0xf);
- MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_MTT_OFFSET);
- dev_cap->reserved_mtts = 1 << (field >> 4);
- MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MRW_SZ_OFFSET);
- dev_cap->max_mrw_sz = 1 << field;
- MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_MRW_OFFSET);
- dev_cap->reserved_mrws = 1 << (field & 0xf);
- MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MTT_SEG_OFFSET);
- dev_cap->max_mtt_seg = 1 << (field & 0x3f);
- MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_REQ_QP_OFFSET);
- dev_cap->max_requester_per_qp = 1 << (field & 0x3f);
- MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_RES_QP_OFFSET);
- dev_cap->max_responder_per_qp = 1 << (field & 0x3f);
- MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_GSO_OFFSET);
- field &= 0x1f;
- if (!field)
- dev_cap->max_gso_sz = 0;
- else
- dev_cap->max_gso_sz = 1 << field;
-
- MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_RDMA_OFFSET);
- dev_cap->max_rdma_global = 1 << (field & 0x3f);
- MLX4_GET(field, outbox, QUERY_DEV_CAP_ACK_DELAY_OFFSET);
- dev_cap->local_ca_ack_delay = field & 0x1f;
- MLX4_GET(field, outbox, QUERY_DEV_CAP_VL_PORT_OFFSET);
- dev_cap->num_ports = field & 0xf;
- MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MSG_SZ_OFFSET);
- dev_cap->max_msg_sz = 1 << (field & 0x1f);
- MLX4_GET(stat_rate, outbox, QUERY_DEV_CAP_RATE_SUPPORT_OFFSET);
- dev_cap->stat_rate_support = stat_rate;
- MLX4_GET(ext_flags, outbox, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);
- MLX4_GET(flags, outbox, QUERY_DEV_CAP_FLAGS_OFFSET);
- dev_cap->flags = flags | (u64)ext_flags << 32;
- MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_UAR_OFFSET);
- dev_cap->reserved_uars = field >> 4;
- MLX4_GET(field, outbox, QUERY_DEV_CAP_UAR_SZ_OFFSET);
- dev_cap->uar_size = 1 << ((field & 0x3f) + 20);
- MLX4_GET(field, outbox, QUERY_DEV_CAP_PAGE_SZ_OFFSET);
- dev_cap->min_page_sz = 1 << field;
-
- MLX4_GET(field, outbox, QUERY_DEV_CAP_BF_OFFSET);
- if (field & 0x80) {
- MLX4_GET(field, outbox, QUERY_DEV_CAP_LOG_BF_REG_SZ_OFFSET);
- dev_cap->bf_reg_size = 1 << (field & 0x1f);
- MLX4_GET(field, outbox, QUERY_DEV_CAP_LOG_MAX_BF_REGS_PER_PAGE_OFFSET);
- if ((1 << (field & 0x3f)) > (PAGE_SIZE / dev_cap->bf_reg_size))
- field = 3;
- dev_cap->bf_regs_per_page = 1 << (field & 0x3f);
- mlx4_dbg(dev, "BlueFlame available (reg size %d, regs/page %d)\n",
- dev_cap->bf_reg_size, dev_cap->bf_regs_per_page);
- } else {
- dev_cap->bf_reg_size = 0;
- mlx4_dbg(dev, "BlueFlame not available\n");
- }
-
- MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SG_SQ_OFFSET);
- dev_cap->max_sq_sg = field;
- MLX4_GET(size, outbox, QUERY_DEV_CAP_MAX_DESC_SZ_SQ_OFFSET);
- dev_cap->max_sq_desc_sz = size;
-
- MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_QP_MCG_OFFSET);
- dev_cap->max_qp_per_mcg = 1 << field;
- MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_MCG_OFFSET);
- dev_cap->reserved_mgms = field & 0xf;
- MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MCG_OFFSET);
- dev_cap->max_mcgs = 1 << field;
- MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_PD_OFFSET);
- dev_cap->reserved_pds = field >> 4;
- MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_PD_OFFSET);
- dev_cap->max_pds = 1 << (field & 0x3f);
-
- MLX4_GET(size, outbox, QUERY_DEV_CAP_RDMARC_ENTRY_SZ_OFFSET);
- dev_cap->rdmarc_entry_sz = size;
- MLX4_GET(size, outbox, QUERY_DEV_CAP_QPC_ENTRY_SZ_OFFSET);
- dev_cap->qpc_entry_sz = size;
- MLX4_GET(size, outbox, QUERY_DEV_CAP_AUX_ENTRY_SZ_OFFSET);
- dev_cap->aux_entry_sz = size;
- MLX4_GET(size, outbox, QUERY_DEV_CAP_ALTC_ENTRY_SZ_OFFSET);
- dev_cap->altc_entry_sz = size;
- MLX4_GET(size, outbox, QUERY_DEV_CAP_EQC_ENTRY_SZ_OFFSET);
- dev_cap->eqc_entry_sz = size;
- MLX4_GET(size, outbox, QUERY_DEV_CAP_CQC_ENTRY_SZ_OFFSET);
- dev_cap->cqc_entry_sz = size;
- MLX4_GET(size, outbox, QUERY_DEV_CAP_SRQ_ENTRY_SZ_OFFSET);
- dev_cap->srq_entry_sz = size;
- MLX4_GET(size, outbox, QUERY_DEV_CAP_C_MPT_ENTRY_SZ_OFFSET);
- dev_cap->cmpt_entry_sz = size;
- MLX4_GET(size, outbox, QUERY_DEV_CAP_MTT_ENTRY_SZ_OFFSET);
- dev_cap->mtt_entry_sz = size;
- MLX4_GET(size, outbox, QUERY_DEV_CAP_D_MPT_ENTRY_SZ_OFFSET);
- dev_cap->dmpt_entry_sz = size;
-
- MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SRQ_SZ_OFFSET);
- dev_cap->max_srq_sz = 1 << field;
- MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_QP_SZ_OFFSET);
- dev_cap->max_qp_sz = 1 << field;
- MLX4_GET(field, outbox, QUERY_DEV_CAP_RSZ_SRQ_OFFSET);
- dev_cap->resize_srq = field & 1;
- MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SG_RQ_OFFSET);
- dev_cap->max_rq_sg = field;
- MLX4_GET(size, outbox, QUERY_DEV_CAP_MAX_DESC_SZ_RQ_OFFSET);
- dev_cap->max_rq_desc_sz = size;
-
- MLX4_GET(dev_cap->bmme_flags, outbox,
- QUERY_DEV_CAP_BMME_FLAGS_OFFSET);
- MLX4_GET(dev_cap->reserved_lkey, outbox,
- QUERY_DEV_CAP_RSVD_LKEY_OFFSET);
- MLX4_GET(dev_cap->max_icm_sz, outbox,
- QUERY_DEV_CAP_MAX_ICM_SZ_OFFSET);
- if (dev_cap->flags & MLX4_DEV_CAP_FLAG_COUNTERS)
- MLX4_GET(dev_cap->max_counters, outbox,
- QUERY_DEV_CAP_MAX_COUNTERS_OFFSET);
-
- if (dev->flags & MLX4_FLAG_OLD_PORT_CMDS) {
- for (i = 1; i <= dev_cap->num_ports; ++i) {
- MLX4_GET(field, outbox, QUERY_DEV_CAP_VL_PORT_OFFSET);
- dev_cap->max_vl[i] = field >> 4;
- MLX4_GET(field, outbox, QUERY_DEV_CAP_MTU_WIDTH_OFFSET);
- dev_cap->ib_mtu[i] = field >> 4;
- dev_cap->max_port_width[i] = field & 0xf;
- MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_GID_OFFSET);
- dev_cap->max_gids[i] = 1 << (field & 0xf);
- MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_PKEY_OFFSET);
- dev_cap->max_pkeys[i] = 1 << (field & 0xf);
- }
- } else {
-#define QUERY_PORT_SUPPORTED_TYPE_OFFSET 0x00
-#define QUERY_PORT_MTU_OFFSET 0x01
-#define QUERY_PORT_ETH_MTU_OFFSET 0x02
-#define QUERY_PORT_WIDTH_OFFSET 0x06
-#define QUERY_PORT_MAX_GID_PKEY_OFFSET 0x07
-#define QUERY_PORT_MAX_MACVLAN_OFFSET 0x0a
-#define QUERY_PORT_MAX_VL_OFFSET 0x0b
-#define QUERY_PORT_MAC_OFFSET 0x10
-#define QUERY_PORT_TRANS_VENDOR_OFFSET 0x18
-#define QUERY_PORT_WAVELENGTH_OFFSET 0x1c
-#define QUERY_PORT_TRANS_CODE_OFFSET 0x20
-
- for (i = 1; i <= dev_cap->num_ports; ++i) {
- err = mlx4_cmd_box(dev, 0, mailbox->dma, i, 0, MLX4_CMD_QUERY_PORT,
- MLX4_CMD_TIME_CLASS_B);
- if (err)
- goto out;
-
- MLX4_GET(field, outbox, QUERY_PORT_SUPPORTED_TYPE_OFFSET);
- dev_cap->supported_port_types[i] = field & 3;
- MLX4_GET(field, outbox, QUERY_PORT_MTU_OFFSET);
- dev_cap->ib_mtu[i] = field & 0xf;
- MLX4_GET(field, outbox, QUERY_PORT_WIDTH_OFFSET);
- dev_cap->max_port_width[i] = field & 0xf;
- MLX4_GET(field, outbox, QUERY_PORT_MAX_GID_PKEY_OFFSET);
- dev_cap->max_gids[i] = 1 << (field >> 4);
- dev_cap->max_pkeys[i] = 1 << (field & 0xf);
- MLX4_GET(field, outbox, QUERY_PORT_MAX_VL_OFFSET);
- dev_cap->max_vl[i] = field & 0xf;
- MLX4_GET(field, outbox, QUERY_PORT_MAX_MACVLAN_OFFSET);
- dev_cap->log_max_macs[i] = field & 0xf;
- dev_cap->log_max_vlans[i] = field >> 4;
- MLX4_GET(dev_cap->eth_mtu[i], outbox, QUERY_PORT_ETH_MTU_OFFSET);
- MLX4_GET(dev_cap->def_mac[i], outbox, QUERY_PORT_MAC_OFFSET);
- MLX4_GET(field32, outbox, QUERY_PORT_TRANS_VENDOR_OFFSET);
- dev_cap->trans_type[i] = field32 >> 24;
- dev_cap->vendor_oui[i] = field32 & 0xffffff;
- MLX4_GET(dev_cap->wavelength[i], outbox, QUERY_PORT_WAVELENGTH_OFFSET);
- MLX4_GET(dev_cap->trans_code[i], outbox, QUERY_PORT_TRANS_CODE_OFFSET);
- }
- }
-
- mlx4_dbg(dev, "Base MM extensions: flags %08x, rsvd L_Key %08x\n",
- dev_cap->bmme_flags, dev_cap->reserved_lkey);
-
- /*
- * Each UAR has 4 EQ doorbells; so if a UAR is reserved, then
- * we can't use any EQs whose doorbell falls on that page,
- * even if the EQ itself isn't reserved.
- */
- dev_cap->reserved_eqs = max(dev_cap->reserved_uars * 4,
- dev_cap->reserved_eqs);
-
- mlx4_dbg(dev, "Max ICM size %lld MB\n",
- (unsigned long long) dev_cap->max_icm_sz >> 20);
- mlx4_dbg(dev, "Max QPs: %d, reserved QPs: %d, entry size: %d\n",
- dev_cap->max_qps, dev_cap->reserved_qps, dev_cap->qpc_entry_sz);
- mlx4_dbg(dev, "Max SRQs: %d, reserved SRQs: %d, entry size: %d\n",
- dev_cap->max_srqs, dev_cap->reserved_srqs, dev_cap->srq_entry_sz);
- mlx4_dbg(dev, "Max CQs: %d, reserved CQs: %d, entry size: %d\n",
- dev_cap->max_cqs, dev_cap->reserved_cqs, dev_cap->cqc_entry_sz);
- mlx4_dbg(dev, "Max EQs: %d, reserved EQs: %d, entry size: %d\n",
- dev_cap->max_eqs, dev_cap->reserved_eqs, dev_cap->eqc_entry_sz);
- mlx4_dbg(dev, "reserved MPTs: %d, reserved MTTs: %d\n",
- dev_cap->reserved_mrws, dev_cap->reserved_mtts);
- mlx4_dbg(dev, "Max PDs: %d, reserved PDs: %d, reserved UARs: %d\n",
- dev_cap->max_pds, dev_cap->reserved_pds, dev_cap->reserved_uars);
- mlx4_dbg(dev, "Max QP/MCG: %d, reserved MGMs: %d\n",
- dev_cap->max_pds, dev_cap->reserved_mgms);
- mlx4_dbg(dev, "Max CQEs: %d, max WQEs: %d, max SRQ WQEs: %d\n",
- dev_cap->max_cq_sz, dev_cap->max_qp_sz, dev_cap->max_srq_sz);
- mlx4_dbg(dev, "Local CA ACK delay: %d, max MTU: %d, port width cap: %d\n",
- dev_cap->local_ca_ack_delay, 128 << dev_cap->ib_mtu[1],
- dev_cap->max_port_width[1]);
- mlx4_dbg(dev, "Max SQ desc size: %d, max SQ S/G: %d\n",
- dev_cap->max_sq_desc_sz, dev_cap->max_sq_sg);
- mlx4_dbg(dev, "Max RQ desc size: %d, max RQ S/G: %d\n",
- dev_cap->max_rq_desc_sz, dev_cap->max_rq_sg);
- mlx4_dbg(dev, "Max GSO size: %d\n", dev_cap->max_gso_sz);
- mlx4_dbg(dev, "Max counters: %d\n", dev_cap->max_counters);
-
- dump_dev_cap_flags(dev, dev_cap->flags);
-
-out:
- mlx4_free_cmd_mailbox(dev, mailbox);
- return err;
-}
-
-int mlx4_map_cmd(struct mlx4_dev *dev, u16 op, struct mlx4_icm *icm, u64 virt)
-{
- struct mlx4_cmd_mailbox *mailbox;
- struct mlx4_icm_iter iter;
- __be64 *pages;
- int lg;
- int nent = 0;
- int i;
- int err = 0;
- int ts = 0, tc = 0;
-
- mailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(mailbox))
- return PTR_ERR(mailbox);
- memset(mailbox->buf, 0, MLX4_MAILBOX_SIZE);
- pages = mailbox->buf;
-
- for (mlx4_icm_first(icm, &iter);
- !mlx4_icm_last(&iter);
- mlx4_icm_next(&iter)) {
- /*
- * We have to pass pages that are aligned to their
- * size, so find the least significant 1 in the
- * address or size and use that as our log2 size.
- */
- lg = ffs(mlx4_icm_addr(&iter) | mlx4_icm_size(&iter)) - 1;
- if (lg < MLX4_ICM_PAGE_SHIFT) {
- mlx4_warn(dev, "Got FW area not aligned to %d (%llx/%lx).\n",
- MLX4_ICM_PAGE_SIZE,
- (unsigned long long) mlx4_icm_addr(&iter),
- mlx4_icm_size(&iter));
- err = -EINVAL;
- goto out;
- }
-
- for (i = 0; i < mlx4_icm_size(&iter) >> lg; ++i) {
- if (virt != -1) {
- pages[nent * 2] = cpu_to_be64(virt);
- virt += 1 << lg;
- }
-
- pages[nent * 2 + 1] =
- cpu_to_be64((mlx4_icm_addr(&iter) + (i << lg)) |
- (lg - MLX4_ICM_PAGE_SHIFT));
- ts += 1 << (lg - 10);
- ++tc;
-
- if (++nent == MLX4_MAILBOX_SIZE / 16) {
- err = mlx4_cmd(dev, mailbox->dma, nent, 0, op,
- MLX4_CMD_TIME_CLASS_B);
- if (err)
- goto out;
- nent = 0;
- }
- }
- }
-
- if (nent)
- err = mlx4_cmd(dev, mailbox->dma, nent, 0, op, MLX4_CMD_TIME_CLASS_B);
- if (err)
- goto out;
-
- switch (op) {
- case MLX4_CMD_MAP_FA:
- mlx4_dbg(dev, "Mapped %d chunks/%d KB for FW.\n", tc, ts);
- break;
- case MLX4_CMD_MAP_ICM_AUX:
- mlx4_dbg(dev, "Mapped %d chunks/%d KB for ICM aux.\n", tc, ts);
- break;
- case MLX4_CMD_MAP_ICM:
- mlx4_dbg(dev, "Mapped %d chunks/%d KB at %llx for ICM.\n",
- tc, ts, (unsigned long long) virt - (ts << 10));
- break;
- }
-
-out:
- mlx4_free_cmd_mailbox(dev, mailbox);
- return err;
-}
-
-int mlx4_MAP_FA(struct mlx4_dev *dev, struct mlx4_icm *icm)
-{
- return mlx4_map_cmd(dev, MLX4_CMD_MAP_FA, icm, -1);
-}
-
-int mlx4_UNMAP_FA(struct mlx4_dev *dev)
-{
- return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_UNMAP_FA, MLX4_CMD_TIME_CLASS_B);
-}
-
-
-int mlx4_RUN_FW(struct mlx4_dev *dev)
-{
- return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_RUN_FW, MLX4_CMD_TIME_CLASS_A);
-}
-
-int mlx4_QUERY_FW(struct mlx4_dev *dev)
-{
- struct mlx4_fw *fw = &mlx4_priv(dev)->fw;
- struct mlx4_cmd *cmd = &mlx4_priv(dev)->cmd;
- struct mlx4_cmd_mailbox *mailbox;
- u32 *outbox;
- int err = 0;
- u64 fw_ver;
- u16 cmd_if_rev;
- u8 lg;
-
-#define QUERY_FW_OUT_SIZE 0x100
-#define QUERY_FW_VER_OFFSET 0x00
-#define QUERY_FW_CMD_IF_REV_OFFSET 0x0a
-#define QUERY_FW_MAX_CMD_OFFSET 0x0f
-#define QUERY_FW_ERR_START_OFFSET 0x30
-#define QUERY_FW_ERR_SIZE_OFFSET 0x38
-#define QUERY_FW_ERR_BAR_OFFSET 0x3c
-
-#define QUERY_FW_SIZE_OFFSET 0x00
-#define QUERY_FW_CLR_INT_BASE_OFFSET 0x20
-#define QUERY_FW_CLR_INT_BAR_OFFSET 0x28
-
- mailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(mailbox))
- return PTR_ERR(mailbox);
- outbox = mailbox->buf;
-
- err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_FW,
- MLX4_CMD_TIME_CLASS_A);
- if (err)
- goto out;
-
- MLX4_GET(fw_ver, outbox, QUERY_FW_VER_OFFSET);
- /*
- * FW subminor version is at more significant bits than minor
- * version, so swap here.
- */
- dev->caps.fw_ver = (fw_ver & 0xffff00000000ull) |
- ((fw_ver & 0xffff0000ull) >> 16) |
- ((fw_ver & 0x0000ffffull) << 16);
-
- MLX4_GET(cmd_if_rev, outbox, QUERY_FW_CMD_IF_REV_OFFSET);
- if (cmd_if_rev < MLX4_COMMAND_INTERFACE_MIN_REV ||
- cmd_if_rev > MLX4_COMMAND_INTERFACE_MAX_REV) {
- mlx4_err(dev, "Installed FW has unsupported "
- "command interface revision %d.\n",
- cmd_if_rev);
- mlx4_err(dev, "(Installed FW version is %d.%d.%03d)\n",
- (int) (dev->caps.fw_ver >> 32),
- (int) (dev->caps.fw_ver >> 16) & 0xffff,
- (int) dev->caps.fw_ver & 0xffff);
- mlx4_err(dev, "This driver version supports only revisions %d to %d.\n",
- MLX4_COMMAND_INTERFACE_MIN_REV, MLX4_COMMAND_INTERFACE_MAX_REV);
- err = -ENODEV;
- goto out;
- }
-
- if (cmd_if_rev < MLX4_COMMAND_INTERFACE_NEW_PORT_CMDS)
- dev->flags |= MLX4_FLAG_OLD_PORT_CMDS;
-
- MLX4_GET(lg, outbox, QUERY_FW_MAX_CMD_OFFSET);
- cmd->max_cmds = 1 << lg;
-
- mlx4_dbg(dev, "FW version %d.%d.%03d (cmd intf rev %d), max commands %d\n",
- (int) (dev->caps.fw_ver >> 32),
- (int) (dev->caps.fw_ver >> 16) & 0xffff,
- (int) dev->caps.fw_ver & 0xffff,
- cmd_if_rev, cmd->max_cmds);
-
- MLX4_GET(fw->catas_offset, outbox, QUERY_FW_ERR_START_OFFSET);
- MLX4_GET(fw->catas_size, outbox, QUERY_FW_ERR_SIZE_OFFSET);
- MLX4_GET(fw->catas_bar, outbox, QUERY_FW_ERR_BAR_OFFSET);
- fw->catas_bar = (fw->catas_bar >> 6) * 2;
-
- mlx4_dbg(dev, "Catastrophic error buffer at 0x%llx, size 0x%x, BAR %d\n",
- (unsigned long long) fw->catas_offset, fw->catas_size, fw->catas_bar);
-
- MLX4_GET(fw->fw_pages, outbox, QUERY_FW_SIZE_OFFSET);
- MLX4_GET(fw->clr_int_base, outbox, QUERY_FW_CLR_INT_BASE_OFFSET);
- MLX4_GET(fw->clr_int_bar, outbox, QUERY_FW_CLR_INT_BAR_OFFSET);
- fw->clr_int_bar = (fw->clr_int_bar >> 6) * 2;
-
- mlx4_dbg(dev, "FW size %d KB\n", fw->fw_pages >> 2);
-
- /*
- * Round up number of system pages needed in case
- * MLX4_ICM_PAGE_SIZE < PAGE_SIZE.
- */
- fw->fw_pages =
- ALIGN(fw->fw_pages, PAGE_SIZE / MLX4_ICM_PAGE_SIZE) >>
- (PAGE_SHIFT - MLX4_ICM_PAGE_SHIFT);
-
- mlx4_dbg(dev, "Clear int @ %llx, BAR %d\n",
- (unsigned long long) fw->clr_int_base, fw->clr_int_bar);
-
-out:
- mlx4_free_cmd_mailbox(dev, mailbox);
- return err;
-}
-
-static void get_board_id(void *vsd, char *board_id)
-{
- int i;
-
-#define VSD_OFFSET_SIG1 0x00
-#define VSD_OFFSET_SIG2 0xde
-#define VSD_OFFSET_MLX_BOARD_ID 0xd0
-#define VSD_OFFSET_TS_BOARD_ID 0x20
-
-#define VSD_SIGNATURE_TOPSPIN 0x5ad
-
- memset(board_id, 0, MLX4_BOARD_ID_LEN);
-
- if (be16_to_cpup(vsd + VSD_OFFSET_SIG1) == VSD_SIGNATURE_TOPSPIN &&
- be16_to_cpup(vsd + VSD_OFFSET_SIG2) == VSD_SIGNATURE_TOPSPIN) {
- strlcpy(board_id, vsd + VSD_OFFSET_TS_BOARD_ID, MLX4_BOARD_ID_LEN);
- } else {
- /*
- * The board ID is a string but the firmware byte
- * swaps each 4-byte word before passing it back to
- * us. Therefore we need to swab it before printing.
- */
- for (i = 0; i < 4; ++i)
- ((u32 *) board_id)[i] =
- swab32(*(u32 *) (vsd + VSD_OFFSET_MLX_BOARD_ID + i * 4));
- }
-}
-
-int mlx4_QUERY_ADAPTER(struct mlx4_dev *dev, struct mlx4_adapter *adapter)
-{
- struct mlx4_cmd_mailbox *mailbox;
- u32 *outbox;
- int err;
-
-#define QUERY_ADAPTER_OUT_SIZE 0x100
-#define QUERY_ADAPTER_INTA_PIN_OFFSET 0x10
-#define QUERY_ADAPTER_VSD_OFFSET 0x20
-
- mailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(mailbox))
- return PTR_ERR(mailbox);
- outbox = mailbox->buf;
-
- err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_ADAPTER,
- MLX4_CMD_TIME_CLASS_A);
- if (err)
- goto out;
-
- MLX4_GET(adapter->inta_pin, outbox, QUERY_ADAPTER_INTA_PIN_OFFSET);
-
- get_board_id(outbox + QUERY_ADAPTER_VSD_OFFSET / 4,
- adapter->board_id);
-
-out:
- mlx4_free_cmd_mailbox(dev, mailbox);
- return err;
-}
-
-int mlx4_INIT_HCA(struct mlx4_dev *dev, struct mlx4_init_hca_param *param)
-{
- struct mlx4_cmd_mailbox *mailbox;
- __be32 *inbox;
- int err;
-
-#define INIT_HCA_IN_SIZE 0x200
-#define INIT_HCA_VERSION_OFFSET 0x000
-#define INIT_HCA_VERSION 2
-#define INIT_HCA_CACHELINE_SZ_OFFSET 0x0e
-#define INIT_HCA_FLAGS_OFFSET 0x014
-#define INIT_HCA_QPC_OFFSET 0x020
-#define INIT_HCA_QPC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x10)
-#define INIT_HCA_LOG_QP_OFFSET (INIT_HCA_QPC_OFFSET + 0x17)
-#define INIT_HCA_SRQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x28)
-#define INIT_HCA_LOG_SRQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x2f)
-#define INIT_HCA_CQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x30)
-#define INIT_HCA_LOG_CQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x37)
-#define INIT_HCA_ALTC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x40)
-#define INIT_HCA_AUXC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x50)
-#define INIT_HCA_EQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x60)
-#define INIT_HCA_LOG_EQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x67)
-#define INIT_HCA_RDMARC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x70)
-#define INIT_HCA_LOG_RD_OFFSET (INIT_HCA_QPC_OFFSET + 0x77)
-#define INIT_HCA_MCAST_OFFSET 0x0c0
-#define INIT_HCA_MC_BASE_OFFSET (INIT_HCA_MCAST_OFFSET + 0x00)
-#define INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x12)
-#define INIT_HCA_LOG_MC_HASH_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x16)
-#define INIT_HCA_UC_STEERING_OFFSET (INIT_HCA_MCAST_OFFSET + 0x18)
-#define INIT_HCA_LOG_MC_TABLE_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x1b)
-#define INIT_HCA_TPT_OFFSET 0x0f0
-#define INIT_HCA_DMPT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x00)
-#define INIT_HCA_LOG_MPT_SZ_OFFSET (INIT_HCA_TPT_OFFSET + 0x0b)
-#define INIT_HCA_MTT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x10)
-#define INIT_HCA_CMPT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x18)
-#define INIT_HCA_UAR_OFFSET 0x120
-#define INIT_HCA_LOG_UAR_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x0a)
-#define INIT_HCA_UAR_PAGE_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x0b)
-
- mailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(mailbox))
- return PTR_ERR(mailbox);
- inbox = mailbox->buf;
-
- memset(inbox, 0, INIT_HCA_IN_SIZE);
-
- *((u8 *) mailbox->buf + INIT_HCA_VERSION_OFFSET) = INIT_HCA_VERSION;
-
- *((u8 *) mailbox->buf + INIT_HCA_CACHELINE_SZ_OFFSET) =
- (ilog2(cache_line_size()) - 4) << 5;
-
-#if defined(__LITTLE_ENDIAN)
- *(inbox + INIT_HCA_FLAGS_OFFSET / 4) &= ~cpu_to_be32(1 << 1);
-#elif defined(__BIG_ENDIAN)
- *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 1);
-#else
-#error Host endianness not defined
-#endif
- /* Check port for UD address vector: */
- *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1);
-
- /* Enable IPoIB checksumming if we can: */
- if (dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM)
- *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 3);
-
- /* Enable QoS support if module parameter set */
- if (enable_qos)
- *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 2);
-
- /* enable counters */
- if (dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS)
- *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 4);
-
- /* QPC/EEC/CQC/EQC/RDMARC attributes */
-
- MLX4_PUT(inbox, param->qpc_base, INIT_HCA_QPC_BASE_OFFSET);
- MLX4_PUT(inbox, param->log_num_qps, INIT_HCA_LOG_QP_OFFSET);
- MLX4_PUT(inbox, param->srqc_base, INIT_HCA_SRQC_BASE_OFFSET);
- MLX4_PUT(inbox, param->log_num_srqs, INIT_HCA_LOG_SRQ_OFFSET);
- MLX4_PUT(inbox, param->cqc_base, INIT_HCA_CQC_BASE_OFFSET);
- MLX4_PUT(inbox, param->log_num_cqs, INIT_HCA_LOG_CQ_OFFSET);
- MLX4_PUT(inbox, param->altc_base, INIT_HCA_ALTC_BASE_OFFSET);
- MLX4_PUT(inbox, param->auxc_base, INIT_HCA_AUXC_BASE_OFFSET);
- MLX4_PUT(inbox, param->eqc_base, INIT_HCA_EQC_BASE_OFFSET);
- MLX4_PUT(inbox, param->log_num_eqs, INIT_HCA_LOG_EQ_OFFSET);
- MLX4_PUT(inbox, param->rdmarc_base, INIT_HCA_RDMARC_BASE_OFFSET);
- MLX4_PUT(inbox, param->log_rd_per_qp, INIT_HCA_LOG_RD_OFFSET);
-
- /* multicast attributes */
-
- MLX4_PUT(inbox, param->mc_base, INIT_HCA_MC_BASE_OFFSET);
- MLX4_PUT(inbox, param->log_mc_entry_sz, INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET);
- MLX4_PUT(inbox, param->log_mc_hash_sz, INIT_HCA_LOG_MC_HASH_SZ_OFFSET);
- if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER)
- MLX4_PUT(inbox, (u8) (1 << 3), INIT_HCA_UC_STEERING_OFFSET);
- MLX4_PUT(inbox, param->log_mc_table_sz, INIT_HCA_LOG_MC_TABLE_SZ_OFFSET);
-
- /* TPT attributes */
-
- MLX4_PUT(inbox, param->dmpt_base, INIT_HCA_DMPT_BASE_OFFSET);
- MLX4_PUT(inbox, param->log_mpt_sz, INIT_HCA_LOG_MPT_SZ_OFFSET);
- MLX4_PUT(inbox, param->mtt_base, INIT_HCA_MTT_BASE_OFFSET);
- MLX4_PUT(inbox, param->cmpt_base, INIT_HCA_CMPT_BASE_OFFSET);
-
- /* UAR attributes */
-
- MLX4_PUT(inbox, (u8) (PAGE_SHIFT - 12), INIT_HCA_UAR_PAGE_SZ_OFFSET);
- MLX4_PUT(inbox, param->log_uar_sz, INIT_HCA_LOG_UAR_SZ_OFFSET);
-
- err = mlx4_cmd(dev, mailbox->dma, 0, 0, MLX4_CMD_INIT_HCA, 10000);
-
- if (err)
- mlx4_err(dev, "INIT_HCA returns %d\n", err);
-
- mlx4_free_cmd_mailbox(dev, mailbox);
- return err;
-}
-
-int mlx4_INIT_PORT(struct mlx4_dev *dev, int port)
-{
- struct mlx4_cmd_mailbox *mailbox;
- u32 *inbox;
- int err;
- u32 flags;
- u16 field;
-
- if (dev->flags & MLX4_FLAG_OLD_PORT_CMDS) {
-#define INIT_PORT_IN_SIZE 256
-#define INIT_PORT_FLAGS_OFFSET 0x00
-#define INIT_PORT_FLAG_SIG (1 << 18)
-#define INIT_PORT_FLAG_NG (1 << 17)
-#define INIT_PORT_FLAG_G0 (1 << 16)
-#define INIT_PORT_VL_SHIFT 4
-#define INIT_PORT_PORT_WIDTH_SHIFT 8
-#define INIT_PORT_MTU_OFFSET 0x04
-#define INIT_PORT_MAX_GID_OFFSET 0x06
-#define INIT_PORT_MAX_PKEY_OFFSET 0x0a
-#define INIT_PORT_GUID0_OFFSET 0x10
-#define INIT_PORT_NODE_GUID_OFFSET 0x18
-#define INIT_PORT_SI_GUID_OFFSET 0x20
-
- mailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(mailbox))
- return PTR_ERR(mailbox);
- inbox = mailbox->buf;
-
- memset(inbox, 0, INIT_PORT_IN_SIZE);
-
- flags = 0;
- flags |= (dev->caps.vl_cap[port] & 0xf) << INIT_PORT_VL_SHIFT;
- flags |= (dev->caps.port_width_cap[port] & 0xf) << INIT_PORT_PORT_WIDTH_SHIFT;
- MLX4_PUT(inbox, flags, INIT_PORT_FLAGS_OFFSET);
-
- field = 128 << dev->caps.ib_mtu_cap[port];
- MLX4_PUT(inbox, field, INIT_PORT_MTU_OFFSET);
- field = dev->caps.gid_table_len[port];
- MLX4_PUT(inbox, field, INIT_PORT_MAX_GID_OFFSET);
- field = dev->caps.pkey_table_len[port];
- MLX4_PUT(inbox, field, INIT_PORT_MAX_PKEY_OFFSET);
-
- err = mlx4_cmd(dev, mailbox->dma, port, 0, MLX4_CMD_INIT_PORT,
- MLX4_CMD_TIME_CLASS_A);
-
- mlx4_free_cmd_mailbox(dev, mailbox);
- } else
- err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_INIT_PORT,
- MLX4_CMD_TIME_CLASS_A);
-
- return err;
-}
-EXPORT_SYMBOL_GPL(mlx4_INIT_PORT);
-
-int mlx4_CLOSE_PORT(struct mlx4_dev *dev, int port)
-{
- return mlx4_cmd(dev, 0, port, 0, MLX4_CMD_CLOSE_PORT, 1000);
-}
-EXPORT_SYMBOL_GPL(mlx4_CLOSE_PORT);
-
-int mlx4_CLOSE_HCA(struct mlx4_dev *dev, int panic)
-{
- return mlx4_cmd(dev, 0, 0, panic, MLX4_CMD_CLOSE_HCA, 1000);
-}
-
-int mlx4_SET_ICM_SIZE(struct mlx4_dev *dev, u64 icm_size, u64 *aux_pages)
-{
- int ret = mlx4_cmd_imm(dev, icm_size, aux_pages, 0, 0,
- MLX4_CMD_SET_ICM_SIZE,
- MLX4_CMD_TIME_CLASS_A);
- if (ret)
- return ret;
-
- /*
- * Round up number of system pages needed in case
- * MLX4_ICM_PAGE_SIZE < PAGE_SIZE.
- */
- *aux_pages = ALIGN(*aux_pages, PAGE_SIZE / MLX4_ICM_PAGE_SIZE) >>
- (PAGE_SHIFT - MLX4_ICM_PAGE_SHIFT);
-
- return 0;
-}
-
-int mlx4_NOP(struct mlx4_dev *dev)
-{
- /* Input modifier of 0x1f means "finish as soon as possible." */
- return mlx4_cmd(dev, 0, 0x1f, 0, MLX4_CMD_NOP, 100);
-}
-
-#define MLX4_WOL_SETUP_MODE (5 << 28)
-int mlx4_wol_read(struct mlx4_dev *dev, u64 *config, int port)
-{
- u32 in_mod = MLX4_WOL_SETUP_MODE | port << 8;
-
- return mlx4_cmd_imm(dev, 0, config, in_mod, 0x3,
- MLX4_CMD_MOD_STAT_CFG, MLX4_CMD_TIME_CLASS_A);
-}
-EXPORT_SYMBOL_GPL(mlx4_wol_read);
-
-int mlx4_wol_write(struct mlx4_dev *dev, u64 config, int port)
-{
- u32 in_mod = MLX4_WOL_SETUP_MODE | port << 8;
-
- return mlx4_cmd(dev, config, in_mod, 0x1, MLX4_CMD_MOD_STAT_CFG,
- MLX4_CMD_TIME_CLASS_A);
-}
-EXPORT_SYMBOL_GPL(mlx4_wol_write);
+++ /dev/null
-/*
- * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
- * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
- * Copyright (c) 2006, 2007 Cisco Systems. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#ifndef MLX4_FW_H
-#define MLX4_FW_H
-
-#include "mlx4.h"
-#include "icm.h"
-
-struct mlx4_mod_stat_cfg {
- u8 log_pg_sz;
- u8 log_pg_sz_m;
-};
-
-struct mlx4_dev_cap {
- int max_srq_sz;
- int max_qp_sz;
- int reserved_qps;
- int max_qps;
- int reserved_srqs;
- int max_srqs;
- int max_cq_sz;
- int reserved_cqs;
- int max_cqs;
- int max_mpts;
- int reserved_eqs;
- int max_eqs;
- int reserved_mtts;
- int max_mrw_sz;
- int reserved_mrws;
- int max_mtt_seg;
- int max_requester_per_qp;
- int max_responder_per_qp;
- int max_rdma_global;
- int local_ca_ack_delay;
- int num_ports;
- u32 max_msg_sz;
- int ib_mtu[MLX4_MAX_PORTS + 1];
- int max_port_width[MLX4_MAX_PORTS + 1];
- int max_vl[MLX4_MAX_PORTS + 1];
- int max_gids[MLX4_MAX_PORTS + 1];
- int max_pkeys[MLX4_MAX_PORTS + 1];
- u64 def_mac[MLX4_MAX_PORTS + 1];
- u16 eth_mtu[MLX4_MAX_PORTS + 1];
- int trans_type[MLX4_MAX_PORTS + 1];
- int vendor_oui[MLX4_MAX_PORTS + 1];
- u16 wavelength[MLX4_MAX_PORTS + 1];
- u64 trans_code[MLX4_MAX_PORTS + 1];
- u16 stat_rate_support;
- u64 flags;
- int reserved_uars;
- int uar_size;
- int min_page_sz;
- int bf_reg_size;
- int bf_regs_per_page;
- int max_sq_sg;
- int max_sq_desc_sz;
- int max_rq_sg;
- int max_rq_desc_sz;
- int max_qp_per_mcg;
- int reserved_mgms;
- int max_mcgs;
- int reserved_pds;
- int max_pds;
- int qpc_entry_sz;
- int rdmarc_entry_sz;
- int altc_entry_sz;
- int aux_entry_sz;
- int srq_entry_sz;
- int cqc_entry_sz;
- int eqc_entry_sz;
- int dmpt_entry_sz;
- int cmpt_entry_sz;
- int mtt_entry_sz;
- int resize_srq;
- u32 bmme_flags;
- u32 reserved_lkey;
- u64 max_icm_sz;
- int max_gso_sz;
- u8 supported_port_types[MLX4_MAX_PORTS + 1];
- u8 log_max_macs[MLX4_MAX_PORTS + 1];
- u8 log_max_vlans[MLX4_MAX_PORTS + 1];
- u32 max_counters;
-};
-
-struct mlx4_adapter {
- char board_id[MLX4_BOARD_ID_LEN];
- u8 inta_pin;
-};
-
-struct mlx4_init_hca_param {
- u64 qpc_base;
- u64 rdmarc_base;
- u64 auxc_base;
- u64 altc_base;
- u64 srqc_base;
- u64 cqc_base;
- u64 eqc_base;
- u64 mc_base;
- u64 dmpt_base;
- u64 cmpt_base;
- u64 mtt_base;
- u16 log_mc_entry_sz;
- u16 log_mc_hash_sz;
- u8 log_num_qps;
- u8 log_num_srqs;
- u8 log_num_cqs;
- u8 log_num_eqs;
- u8 log_rd_per_qp;
- u8 log_mc_table_sz;
- u8 log_mpt_sz;
- u8 log_uar_sz;
-};
-
-struct mlx4_init_ib_param {
- int port_width;
- int vl_cap;
- int mtu_cap;
- u16 gid_cap;
- u16 pkey_cap;
- int set_guid0;
- u64 guid0;
- int set_node_guid;
- u64 node_guid;
- int set_si_guid;
- u64 si_guid;
-};
-
-struct mlx4_set_ib_param {
- int set_si_guid;
- int reset_qkey_viol;
- u64 si_guid;
- u32 cap_mask;
-};
-
-int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap);
-int mlx4_MAP_FA(struct mlx4_dev *dev, struct mlx4_icm *icm);
-int mlx4_UNMAP_FA(struct mlx4_dev *dev);
-int mlx4_RUN_FW(struct mlx4_dev *dev);
-int mlx4_QUERY_FW(struct mlx4_dev *dev);
-int mlx4_QUERY_ADAPTER(struct mlx4_dev *dev, struct mlx4_adapter *adapter);
-int mlx4_INIT_HCA(struct mlx4_dev *dev, struct mlx4_init_hca_param *param);
-int mlx4_CLOSE_HCA(struct mlx4_dev *dev, int panic);
-int mlx4_map_cmd(struct mlx4_dev *dev, u16 op, struct mlx4_icm *icm, u64 virt);
-int mlx4_SET_ICM_SIZE(struct mlx4_dev *dev, u64 icm_size, u64 *aux_pages);
-int mlx4_MAP_ICM_AUX(struct mlx4_dev *dev, struct mlx4_icm *icm);
-int mlx4_UNMAP_ICM_AUX(struct mlx4_dev *dev);
-int mlx4_NOP(struct mlx4_dev *dev);
-int mlx4_MOD_STAT_CFG(struct mlx4_dev *dev, struct mlx4_mod_stat_cfg *cfg);
-
-#endif /* MLX4_FW_H */
+++ /dev/null
-/*
- * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
- * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include <linux/errno.h>
-#include <linux/mm.h>
-#include <linux/scatterlist.h>
-#include <linux/slab.h>
-
-#include <linux/mlx4/cmd.h>
-
-#include "mlx4.h"
-#include "icm.h"
-#include "fw.h"
-
-/*
- * We allocate in as big chunks as we can, up to a maximum of 256 KB
- * per chunk.
- */
-enum {
- MLX4_ICM_ALLOC_SIZE = 1 << 18,
- MLX4_TABLE_CHUNK_SIZE = 1 << 18
-};
-
-static void mlx4_free_icm_pages(struct mlx4_dev *dev, struct mlx4_icm_chunk *chunk)
-{
- int i;
-
- if (chunk->nsg > 0)
- pci_unmap_sg(dev->pdev, chunk->mem, chunk->npages,
- PCI_DMA_BIDIRECTIONAL);
-
- for (i = 0; i < chunk->npages; ++i)
- __free_pages(sg_page(&chunk->mem[i]),
- get_order(chunk->mem[i].length));
-}
-
-static void mlx4_free_icm_coherent(struct mlx4_dev *dev, struct mlx4_icm_chunk *chunk)
-{
- int i;
-
- for (i = 0; i < chunk->npages; ++i)
- dma_free_coherent(&dev->pdev->dev, chunk->mem[i].length,
- lowmem_page_address(sg_page(&chunk->mem[i])),
- sg_dma_address(&chunk->mem[i]));
-}
-
-void mlx4_free_icm(struct mlx4_dev *dev, struct mlx4_icm *icm, int coherent)
-{
- struct mlx4_icm_chunk *chunk, *tmp;
-
- if (!icm)
- return;
-
- list_for_each_entry_safe(chunk, tmp, &icm->chunk_list, list) {
- if (coherent)
- mlx4_free_icm_coherent(dev, chunk);
- else
- mlx4_free_icm_pages(dev, chunk);
-
- kfree(chunk);
- }
-
- kfree(icm);
-}
-
-static int mlx4_alloc_icm_pages(struct scatterlist *mem, int order, gfp_t gfp_mask)
-{
- struct page *page;
-
- page = alloc_pages(gfp_mask, order);
- if (!page)
- return -ENOMEM;
-
- sg_set_page(mem, page, PAGE_SIZE << order, 0);
- return 0;
-}
-
-static int mlx4_alloc_icm_coherent(struct device *dev, struct scatterlist *mem,
- int order, gfp_t gfp_mask)
-{
- void *buf = dma_alloc_coherent(dev, PAGE_SIZE << order,
- &sg_dma_address(mem), gfp_mask);
- if (!buf)
- return -ENOMEM;
-
- sg_set_buf(mem, buf, PAGE_SIZE << order);
- BUG_ON(mem->offset);
- sg_dma_len(mem) = PAGE_SIZE << order;
- return 0;
-}
-
-struct mlx4_icm *mlx4_alloc_icm(struct mlx4_dev *dev, int npages,
- gfp_t gfp_mask, int coherent)
-{
- struct mlx4_icm *icm;
- struct mlx4_icm_chunk *chunk = NULL;
- int cur_order;
- int ret;
-
- /* We use sg_set_buf for coherent allocs, which assumes low memory */
- BUG_ON(coherent && (gfp_mask & __GFP_HIGHMEM));
-
- icm = kmalloc(sizeof *icm, gfp_mask & ~(__GFP_HIGHMEM | __GFP_NOWARN));
- if (!icm)
- return NULL;
-
- icm->refcount = 0;
- INIT_LIST_HEAD(&icm->chunk_list);
-
- cur_order = get_order(MLX4_ICM_ALLOC_SIZE);
-
- while (npages > 0) {
- if (!chunk) {
- chunk = kmalloc(sizeof *chunk,
- gfp_mask & ~(__GFP_HIGHMEM | __GFP_NOWARN));
- if (!chunk)
- goto fail;
-
- sg_init_table(chunk->mem, MLX4_ICM_CHUNK_LEN);
- chunk->npages = 0;
- chunk->nsg = 0;
- list_add_tail(&chunk->list, &icm->chunk_list);
- }
-
- while (1 << cur_order > npages)
- --cur_order;
-
- if (coherent)
- ret = mlx4_alloc_icm_coherent(&dev->pdev->dev,
- &chunk->mem[chunk->npages],
- cur_order, gfp_mask);
- else
- ret = mlx4_alloc_icm_pages(&chunk->mem[chunk->npages],
- cur_order, gfp_mask);
-
- if (ret) {
- if (--cur_order < 0)
- goto fail;
- else
- continue;
- }
-
- ++chunk->npages;
-
- if (coherent)
- ++chunk->nsg;
- else if (chunk->npages == MLX4_ICM_CHUNK_LEN) {
- chunk->nsg = pci_map_sg(dev->pdev, chunk->mem,
- chunk->npages,
- PCI_DMA_BIDIRECTIONAL);
-
- if (chunk->nsg <= 0)
- goto fail;
- }
-
- if (chunk->npages == MLX4_ICM_CHUNK_LEN)
- chunk = NULL;
-
- npages -= 1 << cur_order;
- }
-
- if (!coherent && chunk) {
- chunk->nsg = pci_map_sg(dev->pdev, chunk->mem,
- chunk->npages,
- PCI_DMA_BIDIRECTIONAL);
-
- if (chunk->nsg <= 0)
- goto fail;
- }
-
- return icm;
-
-fail:
- mlx4_free_icm(dev, icm, coherent);
- return NULL;
-}
-
-static int mlx4_MAP_ICM(struct mlx4_dev *dev, struct mlx4_icm *icm, u64 virt)
-{
- return mlx4_map_cmd(dev, MLX4_CMD_MAP_ICM, icm, virt);
-}
-
-static int mlx4_UNMAP_ICM(struct mlx4_dev *dev, u64 virt, u32 page_count)
-{
- return mlx4_cmd(dev, virt, page_count, 0, MLX4_CMD_UNMAP_ICM,
- MLX4_CMD_TIME_CLASS_B);
-}
-
-int mlx4_MAP_ICM_AUX(struct mlx4_dev *dev, struct mlx4_icm *icm)
-{
- return mlx4_map_cmd(dev, MLX4_CMD_MAP_ICM_AUX, icm, -1);
-}
-
-int mlx4_UNMAP_ICM_AUX(struct mlx4_dev *dev)
-{
- return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_UNMAP_ICM_AUX, MLX4_CMD_TIME_CLASS_B);
-}
-
-int mlx4_table_get(struct mlx4_dev *dev, struct mlx4_icm_table *table, int obj)
-{
- int i = (obj & (table->num_obj - 1)) / (MLX4_TABLE_CHUNK_SIZE / table->obj_size);
- int ret = 0;
-
- mutex_lock(&table->mutex);
-
- if (table->icm[i]) {
- ++table->icm[i]->refcount;
- goto out;
- }
-
- table->icm[i] = mlx4_alloc_icm(dev, MLX4_TABLE_CHUNK_SIZE >> PAGE_SHIFT,
- (table->lowmem ? GFP_KERNEL : GFP_HIGHUSER) |
- __GFP_NOWARN, table->coherent);
- if (!table->icm[i]) {
- ret = -ENOMEM;
- goto out;
- }
-
- if (mlx4_MAP_ICM(dev, table->icm[i], table->virt +
- (u64) i * MLX4_TABLE_CHUNK_SIZE)) {
- mlx4_free_icm(dev, table->icm[i], table->coherent);
- table->icm[i] = NULL;
- ret = -ENOMEM;
- goto out;
- }
-
- ++table->icm[i]->refcount;
-
-out:
- mutex_unlock(&table->mutex);
- return ret;
-}
-
-void mlx4_table_put(struct mlx4_dev *dev, struct mlx4_icm_table *table, int obj)
-{
- int i;
-
- i = (obj & (table->num_obj - 1)) / (MLX4_TABLE_CHUNK_SIZE / table->obj_size);
-
- mutex_lock(&table->mutex);
-
- if (--table->icm[i]->refcount == 0) {
- mlx4_UNMAP_ICM(dev, table->virt + i * MLX4_TABLE_CHUNK_SIZE,
- MLX4_TABLE_CHUNK_SIZE / MLX4_ICM_PAGE_SIZE);
- mlx4_free_icm(dev, table->icm[i], table->coherent);
- table->icm[i] = NULL;
- }
-
- mutex_unlock(&table->mutex);
-}
-
-void *mlx4_table_find(struct mlx4_icm_table *table, int obj, dma_addr_t *dma_handle)
-{
- int idx, offset, dma_offset, i;
- struct mlx4_icm_chunk *chunk;
- struct mlx4_icm *icm;
- struct page *page = NULL;
-
- if (!table->lowmem)
- return NULL;
-
- mutex_lock(&table->mutex);
-
- idx = (obj & (table->num_obj - 1)) * table->obj_size;
- icm = table->icm[idx / MLX4_TABLE_CHUNK_SIZE];
- dma_offset = offset = idx % MLX4_TABLE_CHUNK_SIZE;
-
- if (!icm)
- goto out;
-
- list_for_each_entry(chunk, &icm->chunk_list, list) {
- for (i = 0; i < chunk->npages; ++i) {
- if (dma_handle && dma_offset >= 0) {
- if (sg_dma_len(&chunk->mem[i]) > dma_offset)
- *dma_handle = sg_dma_address(&chunk->mem[i]) +
- dma_offset;
- dma_offset -= sg_dma_len(&chunk->mem[i]);
- }
- /*
- * DMA mapping can merge pages but not split them,
- * so if we found the page, dma_handle has already
- * been assigned to.
- */
- if (chunk->mem[i].length > offset) {
- page = sg_page(&chunk->mem[i]);
- goto out;
- }
- offset -= chunk->mem[i].length;
- }
- }
-
-out:
- mutex_unlock(&table->mutex);
- return page ? lowmem_page_address(page) + offset : NULL;
-}
-
-int mlx4_table_get_range(struct mlx4_dev *dev, struct mlx4_icm_table *table,
- int start, int end)
-{
- int inc = MLX4_TABLE_CHUNK_SIZE / table->obj_size;
- int i, err;
-
- for (i = start; i <= end; i += inc) {
- err = mlx4_table_get(dev, table, i);
- if (err)
- goto fail;
- }
-
- return 0;
-
-fail:
- while (i > start) {
- i -= inc;
- mlx4_table_put(dev, table, i);
- }
-
- return err;
-}
-
-void mlx4_table_put_range(struct mlx4_dev *dev, struct mlx4_icm_table *table,
- int start, int end)
-{
- int i;
-
- for (i = start; i <= end; i += MLX4_TABLE_CHUNK_SIZE / table->obj_size)
- mlx4_table_put(dev, table, i);
-}
-
-int mlx4_init_icm_table(struct mlx4_dev *dev, struct mlx4_icm_table *table,
- u64 virt, int obj_size, int nobj, int reserved,
- int use_lowmem, int use_coherent)
-{
- int obj_per_chunk;
- int num_icm;
- unsigned chunk_size;
- int i;
-
- obj_per_chunk = MLX4_TABLE_CHUNK_SIZE / obj_size;
- num_icm = (nobj + obj_per_chunk - 1) / obj_per_chunk;
-
- table->icm = kcalloc(num_icm, sizeof *table->icm, GFP_KERNEL);
- if (!table->icm)
- return -ENOMEM;
- table->virt = virt;
- table->num_icm = num_icm;
- table->num_obj = nobj;
- table->obj_size = obj_size;
- table->lowmem = use_lowmem;
- table->coherent = use_coherent;
- mutex_init(&table->mutex);
-
- for (i = 0; i * MLX4_TABLE_CHUNK_SIZE < reserved * obj_size; ++i) {
- chunk_size = MLX4_TABLE_CHUNK_SIZE;
- if ((i + 1) * MLX4_TABLE_CHUNK_SIZE > nobj * obj_size)
- chunk_size = PAGE_ALIGN(nobj * obj_size - i * MLX4_TABLE_CHUNK_SIZE);
-
- table->icm[i] = mlx4_alloc_icm(dev, chunk_size >> PAGE_SHIFT,
- (use_lowmem ? GFP_KERNEL : GFP_HIGHUSER) |
- __GFP_NOWARN, use_coherent);
- if (!table->icm[i])
- goto err;
- if (mlx4_MAP_ICM(dev, table->icm[i], virt + i * MLX4_TABLE_CHUNK_SIZE)) {
- mlx4_free_icm(dev, table->icm[i], use_coherent);
- table->icm[i] = NULL;
- goto err;
- }
-
- /*
- * Add a reference to this ICM chunk so that it never
- * gets freed (since it contains reserved firmware objects).
- */
- ++table->icm[i]->refcount;
- }
-
- return 0;
-
-err:
- for (i = 0; i < num_icm; ++i)
- if (table->icm[i]) {
- mlx4_UNMAP_ICM(dev, virt + i * MLX4_TABLE_CHUNK_SIZE,
- MLX4_TABLE_CHUNK_SIZE / MLX4_ICM_PAGE_SIZE);
- mlx4_free_icm(dev, table->icm[i], use_coherent);
- }
-
- return -ENOMEM;
-}
-
-void mlx4_cleanup_icm_table(struct mlx4_dev *dev, struct mlx4_icm_table *table)
-{
- int i;
-
- for (i = 0; i < table->num_icm; ++i)
- if (table->icm[i]) {
- mlx4_UNMAP_ICM(dev, table->virt + i * MLX4_TABLE_CHUNK_SIZE,
- MLX4_TABLE_CHUNK_SIZE / MLX4_ICM_PAGE_SIZE);
- mlx4_free_icm(dev, table->icm[i], table->coherent);
- }
-
- kfree(table->icm);
-}
+++ /dev/null
-/*
- * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
- * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#ifndef MLX4_ICM_H
-#define MLX4_ICM_H
-
-#include <linux/list.h>
-#include <linux/pci.h>
-#include <linux/mutex.h>
-
-#define MLX4_ICM_CHUNK_LEN \
- ((256 - sizeof (struct list_head) - 2 * sizeof (int)) / \
- (sizeof (struct scatterlist)))
-
-enum {
- MLX4_ICM_PAGE_SHIFT = 12,
- MLX4_ICM_PAGE_SIZE = 1 << MLX4_ICM_PAGE_SHIFT,
-};
-
-struct mlx4_icm_chunk {
- struct list_head list;
- int npages;
- int nsg;
- struct scatterlist mem[MLX4_ICM_CHUNK_LEN];
-};
-
-struct mlx4_icm {
- struct list_head chunk_list;
- int refcount;
-};
-
-struct mlx4_icm_iter {
- struct mlx4_icm *icm;
- struct mlx4_icm_chunk *chunk;
- int page_idx;
-};
-
-struct mlx4_dev;
-
-struct mlx4_icm *mlx4_alloc_icm(struct mlx4_dev *dev, int npages,
- gfp_t gfp_mask, int coherent);
-void mlx4_free_icm(struct mlx4_dev *dev, struct mlx4_icm *icm, int coherent);
-
-int mlx4_table_get(struct mlx4_dev *dev, struct mlx4_icm_table *table, int obj);
-void mlx4_table_put(struct mlx4_dev *dev, struct mlx4_icm_table *table, int obj);
-int mlx4_table_get_range(struct mlx4_dev *dev, struct mlx4_icm_table *table,
- int start, int end);
-void mlx4_table_put_range(struct mlx4_dev *dev, struct mlx4_icm_table *table,
- int start, int end);
-int mlx4_init_icm_table(struct mlx4_dev *dev, struct mlx4_icm_table *table,
- u64 virt, int obj_size, int nobj, int reserved,
- int use_lowmem, int use_coherent);
-void mlx4_cleanup_icm_table(struct mlx4_dev *dev, struct mlx4_icm_table *table);
-int mlx4_table_get(struct mlx4_dev *dev, struct mlx4_icm_table *table, int obj);
-void mlx4_table_put(struct mlx4_dev *dev, struct mlx4_icm_table *table, int obj);
-void *mlx4_table_find(struct mlx4_icm_table *table, int obj, dma_addr_t *dma_handle);
-int mlx4_table_get_range(struct mlx4_dev *dev, struct mlx4_icm_table *table,
- int start, int end);
-void mlx4_table_put_range(struct mlx4_dev *dev, struct mlx4_icm_table *table,
- int start, int end);
-
-static inline void mlx4_icm_first(struct mlx4_icm *icm,
- struct mlx4_icm_iter *iter)
-{
- iter->icm = icm;
- iter->chunk = list_empty(&icm->chunk_list) ?
- NULL : list_entry(icm->chunk_list.next,
- struct mlx4_icm_chunk, list);
- iter->page_idx = 0;
-}
-
-static inline int mlx4_icm_last(struct mlx4_icm_iter *iter)
-{
- return !iter->chunk;
-}
-
-static inline void mlx4_icm_next(struct mlx4_icm_iter *iter)
-{
- if (++iter->page_idx >= iter->chunk->nsg) {
- if (iter->chunk->list.next == &iter->icm->chunk_list) {
- iter->chunk = NULL;
- return;
- }
-
- iter->chunk = list_entry(iter->chunk->list.next,
- struct mlx4_icm_chunk, list);
- iter->page_idx = 0;
- }
-}
-
-static inline dma_addr_t mlx4_icm_addr(struct mlx4_icm_iter *iter)
-{
- return sg_dma_address(&iter->chunk->mem[iter->page_idx]);
-}
-
-static inline unsigned long mlx4_icm_size(struct mlx4_icm_iter *iter)
-{
- return sg_dma_len(&iter->chunk->mem[iter->page_idx]);
-}
-
-int mlx4_MAP_ICM_AUX(struct mlx4_dev *dev, struct mlx4_icm *icm);
-int mlx4_UNMAP_ICM_AUX(struct mlx4_dev *dev);
-
-#endif /* MLX4_ICM_H */
+++ /dev/null
-/*
- * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
- * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include <linux/slab.h>
-
-#include "mlx4.h"
-
-struct mlx4_device_context {
- struct list_head list;
- struct mlx4_interface *intf;
- void *context;
-};
-
-static LIST_HEAD(intf_list);
-static LIST_HEAD(dev_list);
-static DEFINE_MUTEX(intf_mutex);
-
-static void mlx4_add_device(struct mlx4_interface *intf, struct mlx4_priv *priv)
-{
- struct mlx4_device_context *dev_ctx;
-
- dev_ctx = kmalloc(sizeof *dev_ctx, GFP_KERNEL);
- if (!dev_ctx)
- return;
-
- dev_ctx->intf = intf;
- dev_ctx->context = intf->add(&priv->dev);
-
- if (dev_ctx->context) {
- spin_lock_irq(&priv->ctx_lock);
- list_add_tail(&dev_ctx->list, &priv->ctx_list);
- spin_unlock_irq(&priv->ctx_lock);
- } else
- kfree(dev_ctx);
-}
-
-static void mlx4_remove_device(struct mlx4_interface *intf, struct mlx4_priv *priv)
-{
- struct mlx4_device_context *dev_ctx;
-
- list_for_each_entry(dev_ctx, &priv->ctx_list, list)
- if (dev_ctx->intf == intf) {
- spin_lock_irq(&priv->ctx_lock);
- list_del(&dev_ctx->list);
- spin_unlock_irq(&priv->ctx_lock);
-
- intf->remove(&priv->dev, dev_ctx->context);
- kfree(dev_ctx);
- return;
- }
-}
-
-int mlx4_register_interface(struct mlx4_interface *intf)
-{
- struct mlx4_priv *priv;
-
- if (!intf->add || !intf->remove)
- return -EINVAL;
-
- mutex_lock(&intf_mutex);
-
- list_add_tail(&intf->list, &intf_list);
- list_for_each_entry(priv, &dev_list, dev_list)
- mlx4_add_device(intf, priv);
-
- mutex_unlock(&intf_mutex);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(mlx4_register_interface);
-
-void mlx4_unregister_interface(struct mlx4_interface *intf)
-{
- struct mlx4_priv *priv;
-
- mutex_lock(&intf_mutex);
-
- list_for_each_entry(priv, &dev_list, dev_list)
- mlx4_remove_device(intf, priv);
-
- list_del(&intf->list);
-
- mutex_unlock(&intf_mutex);
-}
-EXPORT_SYMBOL_GPL(mlx4_unregister_interface);
-
-void mlx4_dispatch_event(struct mlx4_dev *dev, enum mlx4_dev_event type, int port)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- struct mlx4_device_context *dev_ctx;
- unsigned long flags;
-
- spin_lock_irqsave(&priv->ctx_lock, flags);
-
- list_for_each_entry(dev_ctx, &priv->ctx_list, list)
- if (dev_ctx->intf->event)
- dev_ctx->intf->event(dev, dev_ctx->context, type, port);
-
- spin_unlock_irqrestore(&priv->ctx_lock, flags);
-}
-
-int mlx4_register_device(struct mlx4_dev *dev)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- struct mlx4_interface *intf;
-
- mutex_lock(&intf_mutex);
-
- list_add_tail(&priv->dev_list, &dev_list);
- list_for_each_entry(intf, &intf_list, list)
- mlx4_add_device(intf, priv);
-
- mutex_unlock(&intf_mutex);
- mlx4_start_catas_poll(dev);
-
- return 0;
-}
-
-void mlx4_unregister_device(struct mlx4_dev *dev)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- struct mlx4_interface *intf;
-
- mlx4_stop_catas_poll(dev);
- mutex_lock(&intf_mutex);
-
- list_for_each_entry(intf, &intf_list, list)
- mlx4_remove_device(intf, priv);
-
- list_del(&priv->dev_list);
-
- mutex_unlock(&intf_mutex);
-}
-
-void *mlx4_get_protocol_dev(struct mlx4_dev *dev, enum mlx4_protocol proto, int port)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- struct mlx4_device_context *dev_ctx;
- unsigned long flags;
- void *result = NULL;
-
- spin_lock_irqsave(&priv->ctx_lock, flags);
-
- list_for_each_entry(dev_ctx, &priv->ctx_list, list)
- if (dev_ctx->intf->protocol == proto && dev_ctx->intf->get_dev) {
- result = dev_ctx->intf->get_dev(dev, dev_ctx->context, port);
- break;
- }
-
- spin_unlock_irqrestore(&priv->ctx_lock, flags);
-
- return result;
-}
-EXPORT_SYMBOL_GPL(mlx4_get_protocol_dev);
+++ /dev/null
-/*
- * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
- * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
- * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
- * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/errno.h>
-#include <linux/pci.h>
-#include <linux/dma-mapping.h>
-#include <linux/slab.h>
-#include <linux/io-mapping.h>
-
-#include <linux/mlx4/device.h>
-#include <linux/mlx4/doorbell.h>
-
-#include "mlx4.h"
-#include "fw.h"
-#include "icm.h"
-
-MODULE_AUTHOR("Roland Dreier");
-MODULE_DESCRIPTION("Mellanox ConnectX HCA low-level driver");
-MODULE_LICENSE("Dual BSD/GPL");
-MODULE_VERSION(DRV_VERSION);
-
-struct workqueue_struct *mlx4_wq;
-
-#ifdef CONFIG_MLX4_DEBUG
-
-int mlx4_debug_level = 0;
-module_param_named(debug_level, mlx4_debug_level, int, 0644);
-MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0");
-
-#endif /* CONFIG_MLX4_DEBUG */
-
-#ifdef CONFIG_PCI_MSI
-
-static int msi_x = 1;
-module_param(msi_x, int, 0444);
-MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero");
-
-#else /* CONFIG_PCI_MSI */
-
-#define msi_x (0)
-
-#endif /* CONFIG_PCI_MSI */
-
-static char mlx4_version[] __devinitdata =
- DRV_NAME ": Mellanox ConnectX core driver v"
- DRV_VERSION " (" DRV_RELDATE ")\n";
-
-static struct mlx4_profile default_profile = {
- .num_qp = 1 << 17,
- .num_srq = 1 << 16,
- .rdmarc_per_qp = 1 << 4,
- .num_cq = 1 << 16,
- .num_mcg = 1 << 13,
- .num_mpt = 1 << 17,
- .num_mtt = 1 << 20,
-};
-
-static int log_num_mac = 2;
-module_param_named(log_num_mac, log_num_mac, int, 0444);
-MODULE_PARM_DESC(log_num_mac, "Log2 max number of MACs per ETH port (1-7)");
-
-static int log_num_vlan;
-module_param_named(log_num_vlan, log_num_vlan, int, 0444);
-MODULE_PARM_DESC(log_num_vlan, "Log2 max number of VLANs per ETH port (0-7)");
-
-static int use_prio;
-module_param_named(use_prio, use_prio, bool, 0444);
-MODULE_PARM_DESC(use_prio, "Enable steering by VLAN priority on ETH ports "
- "(0/1, default 0)");
-
-static int log_mtts_per_seg = ilog2(MLX4_MTT_ENTRY_PER_SEG);
-module_param_named(log_mtts_per_seg, log_mtts_per_seg, int, 0444);
-MODULE_PARM_DESC(log_mtts_per_seg, "Log2 number of MTT entries per segment (1-7)");
-
-int mlx4_check_port_params(struct mlx4_dev *dev,
- enum mlx4_port_type *port_type)
-{
- int i;
-
- for (i = 0; i < dev->caps.num_ports - 1; i++) {
- if (port_type[i] != port_type[i + 1]) {
- if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP)) {
- mlx4_err(dev, "Only same port types supported "
- "on this HCA, aborting.\n");
- return -EINVAL;
- }
- if (port_type[i] == MLX4_PORT_TYPE_ETH &&
- port_type[i + 1] == MLX4_PORT_TYPE_IB)
- return -EINVAL;
- }
- }
-
- for (i = 0; i < dev->caps.num_ports; i++) {
- if (!(port_type[i] & dev->caps.supported_type[i+1])) {
- mlx4_err(dev, "Requested port type for port %d is not "
- "supported on this HCA\n", i + 1);
- return -EINVAL;
- }
- }
- return 0;
-}
-
-static void mlx4_set_port_mask(struct mlx4_dev *dev)
-{
- int i;
-
- dev->caps.port_mask = 0;
- for (i = 1; i <= dev->caps.num_ports; ++i)
- if (dev->caps.port_type[i] == MLX4_PORT_TYPE_IB)
- dev->caps.port_mask |= 1 << (i - 1);
-}
-
-static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
-{
- int err;
- int i;
-
- err = mlx4_QUERY_DEV_CAP(dev, dev_cap);
- if (err) {
- mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
- return err;
- }
-
- if (dev_cap->min_page_sz > PAGE_SIZE) {
- mlx4_err(dev, "HCA minimum page size of %d bigger than "
- "kernel PAGE_SIZE of %ld, aborting.\n",
- dev_cap->min_page_sz, PAGE_SIZE);
- return -ENODEV;
- }
- if (dev_cap->num_ports > MLX4_MAX_PORTS) {
- mlx4_err(dev, "HCA has %d ports, but we only support %d, "
- "aborting.\n",
- dev_cap->num_ports, MLX4_MAX_PORTS);
- return -ENODEV;
- }
-
- if (dev_cap->uar_size > pci_resource_len(dev->pdev, 2)) {
- mlx4_err(dev, "HCA reported UAR size of 0x%x bigger than "
- "PCI resource 2 size of 0x%llx, aborting.\n",
- dev_cap->uar_size,
- (unsigned long long) pci_resource_len(dev->pdev, 2));
- return -ENODEV;
- }
-
- dev->caps.num_ports = dev_cap->num_ports;
- for (i = 1; i <= dev->caps.num_ports; ++i) {
- dev->caps.vl_cap[i] = dev_cap->max_vl[i];
- dev->caps.ib_mtu_cap[i] = dev_cap->ib_mtu[i];
- dev->caps.gid_table_len[i] = dev_cap->max_gids[i];
- dev->caps.pkey_table_len[i] = dev_cap->max_pkeys[i];
- dev->caps.port_width_cap[i] = dev_cap->max_port_width[i];
- dev->caps.eth_mtu_cap[i] = dev_cap->eth_mtu[i];
- dev->caps.def_mac[i] = dev_cap->def_mac[i];
- dev->caps.supported_type[i] = dev_cap->supported_port_types[i];
- dev->caps.trans_type[i] = dev_cap->trans_type[i];
- dev->caps.vendor_oui[i] = dev_cap->vendor_oui[i];
- dev->caps.wavelength[i] = dev_cap->wavelength[i];
- dev->caps.trans_code[i] = dev_cap->trans_code[i];
- }
-
- dev->caps.num_uars = dev_cap->uar_size / PAGE_SIZE;
- dev->caps.local_ca_ack_delay = dev_cap->local_ca_ack_delay;
- dev->caps.bf_reg_size = dev_cap->bf_reg_size;
- dev->caps.bf_regs_per_page = dev_cap->bf_regs_per_page;
- dev->caps.max_sq_sg = dev_cap->max_sq_sg;
- dev->caps.max_rq_sg = dev_cap->max_rq_sg;
- dev->caps.max_wqes = dev_cap->max_qp_sz;
- dev->caps.max_qp_init_rdma = dev_cap->max_requester_per_qp;
- dev->caps.max_srq_wqes = dev_cap->max_srq_sz;
- dev->caps.max_srq_sge = dev_cap->max_rq_sg - 1;
- dev->caps.reserved_srqs = dev_cap->reserved_srqs;
- dev->caps.max_sq_desc_sz = dev_cap->max_sq_desc_sz;
- dev->caps.max_rq_desc_sz = dev_cap->max_rq_desc_sz;
- dev->caps.num_qp_per_mgm = MLX4_QP_PER_MGM;
- /*
- * Subtract 1 from the limit because we need to allocate a
- * spare CQE so the HCA HW can tell the difference between an
- * empty CQ and a full CQ.
- */
- dev->caps.max_cqes = dev_cap->max_cq_sz - 1;
- dev->caps.reserved_cqs = dev_cap->reserved_cqs;
- dev->caps.reserved_eqs = dev_cap->reserved_eqs;
- dev->caps.mtts_per_seg = 1 << log_mtts_per_seg;
- dev->caps.reserved_mtts = DIV_ROUND_UP(dev_cap->reserved_mtts,
- dev->caps.mtts_per_seg);
- dev->caps.reserved_mrws = dev_cap->reserved_mrws;
- dev->caps.reserved_uars = dev_cap->reserved_uars;
- dev->caps.reserved_pds = dev_cap->reserved_pds;
- dev->caps.mtt_entry_sz = dev->caps.mtts_per_seg * dev_cap->mtt_entry_sz;
- dev->caps.max_msg_sz = dev_cap->max_msg_sz;
- dev->caps.page_size_cap = ~(u32) (dev_cap->min_page_sz - 1);
- dev->caps.flags = dev_cap->flags;
- dev->caps.bmme_flags = dev_cap->bmme_flags;
- dev->caps.reserved_lkey = dev_cap->reserved_lkey;
- dev->caps.stat_rate_support = dev_cap->stat_rate_support;
- dev->caps.max_gso_sz = dev_cap->max_gso_sz;
-
- dev->caps.log_num_macs = log_num_mac;
- dev->caps.log_num_vlans = log_num_vlan;
- dev->caps.log_num_prios = use_prio ? 3 : 0;
-
- for (i = 1; i <= dev->caps.num_ports; ++i) {
- if (dev->caps.supported_type[i] != MLX4_PORT_TYPE_ETH)
- dev->caps.port_type[i] = MLX4_PORT_TYPE_IB;
- else
- dev->caps.port_type[i] = MLX4_PORT_TYPE_ETH;
- dev->caps.possible_type[i] = dev->caps.port_type[i];
- mlx4_priv(dev)->sense.sense_allowed[i] =
- dev->caps.supported_type[i] == MLX4_PORT_TYPE_AUTO;
-
- if (dev->caps.log_num_macs > dev_cap->log_max_macs[i]) {
- dev->caps.log_num_macs = dev_cap->log_max_macs[i];
- mlx4_warn(dev, "Requested number of MACs is too much "
- "for port %d, reducing to %d.\n",
- i, 1 << dev->caps.log_num_macs);
- }
- if (dev->caps.log_num_vlans > dev_cap->log_max_vlans[i]) {
- dev->caps.log_num_vlans = dev_cap->log_max_vlans[i];
- mlx4_warn(dev, "Requested number of VLANs is too much "
- "for port %d, reducing to %d.\n",
- i, 1 << dev->caps.log_num_vlans);
- }
- }
-
- mlx4_set_port_mask(dev);
-
- dev->caps.max_counters = 1 << ilog2(dev_cap->max_counters);
-
- dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] = dev_cap->reserved_qps;
- dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] =
- dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] =
- (1 << dev->caps.log_num_macs) *
- (1 << dev->caps.log_num_vlans) *
- (1 << dev->caps.log_num_prios) *
- dev->caps.num_ports;
- dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH] = MLX4_NUM_FEXCH;
-
- dev->caps.reserved_qps = dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] +
- dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] +
- dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] +
- dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH];
-
- return 0;
-}
-
-/*
- * Change the port configuration of the device.
- * Every user of this function must hold the port mutex.
- */
-int mlx4_change_port_types(struct mlx4_dev *dev,
- enum mlx4_port_type *port_types)
-{
- int err = 0;
- int change = 0;
- int port;
-
- for (port = 0; port < dev->caps.num_ports; port++) {
- /* Change the port type only if the new type is different
- * from the current, and not set to Auto */
- if (port_types[port] != dev->caps.port_type[port + 1]) {
- change = 1;
- dev->caps.port_type[port + 1] = port_types[port];
- }
- }
- if (change) {
- mlx4_unregister_device(dev);
- for (port = 1; port <= dev->caps.num_ports; port++) {
- mlx4_CLOSE_PORT(dev, port);
- err = mlx4_SET_PORT(dev, port);
- if (err) {
- mlx4_err(dev, "Failed to set port %d, "
- "aborting\n", port);
- goto out;
- }
- }
- mlx4_set_port_mask(dev);
- err = mlx4_register_device(dev);
- }
-
-out:
- return err;
-}
-
-static ssize_t show_port_type(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
- port_attr);
- struct mlx4_dev *mdev = info->dev;
- char type[8];
-
- sprintf(type, "%s",
- (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_IB) ?
- "ib" : "eth");
- if (mdev->caps.possible_type[info->port] == MLX4_PORT_TYPE_AUTO)
- sprintf(buf, "auto (%s)\n", type);
- else
- sprintf(buf, "%s\n", type);
-
- return strlen(buf);
-}
-
-static ssize_t set_port_type(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
- port_attr);
- struct mlx4_dev *mdev = info->dev;
- struct mlx4_priv *priv = mlx4_priv(mdev);
- enum mlx4_port_type types[MLX4_MAX_PORTS];
- enum mlx4_port_type new_types[MLX4_MAX_PORTS];
- int i;
- int err = 0;
-
- if (!strcmp(buf, "ib\n"))
- info->tmp_type = MLX4_PORT_TYPE_IB;
- else if (!strcmp(buf, "eth\n"))
- info->tmp_type = MLX4_PORT_TYPE_ETH;
- else if (!strcmp(buf, "auto\n"))
- info->tmp_type = MLX4_PORT_TYPE_AUTO;
- else {
- mlx4_err(mdev, "%s is not supported port type\n", buf);
- return -EINVAL;
- }
-
- mlx4_stop_sense(mdev);
- mutex_lock(&priv->port_mutex);
- /* Possible type is always the one that was delivered */
- mdev->caps.possible_type[info->port] = info->tmp_type;
-
- for (i = 0; i < mdev->caps.num_ports; i++) {
- types[i] = priv->port[i+1].tmp_type ? priv->port[i+1].tmp_type :
- mdev->caps.possible_type[i+1];
- if (types[i] == MLX4_PORT_TYPE_AUTO)
- types[i] = mdev->caps.port_type[i+1];
- }
-
- if (!(mdev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP)) {
- for (i = 1; i <= mdev->caps.num_ports; i++) {
- if (mdev->caps.possible_type[i] == MLX4_PORT_TYPE_AUTO) {
- mdev->caps.possible_type[i] = mdev->caps.port_type[i];
- err = -EINVAL;
- }
- }
- }
- if (err) {
- mlx4_err(mdev, "Auto sensing is not supported on this HCA. "
- "Set only 'eth' or 'ib' for both ports "
- "(should be the same)\n");
- goto out;
- }
-
- mlx4_do_sense_ports(mdev, new_types, types);
-
- err = mlx4_check_port_params(mdev, new_types);
- if (err)
- goto out;
-
- /* We are about to apply the changes after the configuration
- * was verified, no need to remember the temporary types
- * any more */
- for (i = 0; i < mdev->caps.num_ports; i++)
- priv->port[i + 1].tmp_type = 0;
-
- err = mlx4_change_port_types(mdev, new_types);
-
-out:
- mlx4_start_sense(mdev);
- mutex_unlock(&priv->port_mutex);
- return err ? err : count;
-}
-
-static int mlx4_load_fw(struct mlx4_dev *dev)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- int err;
-
- priv->fw.fw_icm = mlx4_alloc_icm(dev, priv->fw.fw_pages,
- GFP_HIGHUSER | __GFP_NOWARN, 0);
- if (!priv->fw.fw_icm) {
- mlx4_err(dev, "Couldn't allocate FW area, aborting.\n");
- return -ENOMEM;
- }
-
- err = mlx4_MAP_FA(dev, priv->fw.fw_icm);
- if (err) {
- mlx4_err(dev, "MAP_FA command failed, aborting.\n");
- goto err_free;
- }
-
- err = mlx4_RUN_FW(dev);
- if (err) {
- mlx4_err(dev, "RUN_FW command failed, aborting.\n");
- goto err_unmap_fa;
- }
-
- return 0;
-
-err_unmap_fa:
- mlx4_UNMAP_FA(dev);
-
-err_free:
- mlx4_free_icm(dev, priv->fw.fw_icm, 0);
- return err;
-}
-
-static int mlx4_init_cmpt_table(struct mlx4_dev *dev, u64 cmpt_base,
- int cmpt_entry_sz)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- int err;
-
- err = mlx4_init_icm_table(dev, &priv->qp_table.cmpt_table,
- cmpt_base +
- ((u64) (MLX4_CMPT_TYPE_QP *
- cmpt_entry_sz) << MLX4_CMPT_SHIFT),
- cmpt_entry_sz, dev->caps.num_qps,
- dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
- 0, 0);
- if (err)
- goto err;
-
- err = mlx4_init_icm_table(dev, &priv->srq_table.cmpt_table,
- cmpt_base +
- ((u64) (MLX4_CMPT_TYPE_SRQ *
- cmpt_entry_sz) << MLX4_CMPT_SHIFT),
- cmpt_entry_sz, dev->caps.num_srqs,
- dev->caps.reserved_srqs, 0, 0);
- if (err)
- goto err_qp;
-
- err = mlx4_init_icm_table(dev, &priv->cq_table.cmpt_table,
- cmpt_base +
- ((u64) (MLX4_CMPT_TYPE_CQ *
- cmpt_entry_sz) << MLX4_CMPT_SHIFT),
- cmpt_entry_sz, dev->caps.num_cqs,
- dev->caps.reserved_cqs, 0, 0);
- if (err)
- goto err_srq;
-
- err = mlx4_init_icm_table(dev, &priv->eq_table.cmpt_table,
- cmpt_base +
- ((u64) (MLX4_CMPT_TYPE_EQ *
- cmpt_entry_sz) << MLX4_CMPT_SHIFT),
- cmpt_entry_sz,
- dev->caps.num_eqs, dev->caps.num_eqs, 0, 0);
- if (err)
- goto err_cq;
-
- return 0;
-
-err_cq:
- mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
-
-err_srq:
- mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
-
-err_qp:
- mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
-
-err:
- return err;
-}
-
-static int mlx4_init_icm(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap,
- struct mlx4_init_hca_param *init_hca, u64 icm_size)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- u64 aux_pages;
- int err;
-
- err = mlx4_SET_ICM_SIZE(dev, icm_size, &aux_pages);
- if (err) {
- mlx4_err(dev, "SET_ICM_SIZE command failed, aborting.\n");
- return err;
- }
-
- mlx4_dbg(dev, "%lld KB of HCA context requires %lld KB aux memory.\n",
- (unsigned long long) icm_size >> 10,
- (unsigned long long) aux_pages << 2);
-
- priv->fw.aux_icm = mlx4_alloc_icm(dev, aux_pages,
- GFP_HIGHUSER | __GFP_NOWARN, 0);
- if (!priv->fw.aux_icm) {
- mlx4_err(dev, "Couldn't allocate aux memory, aborting.\n");
- return -ENOMEM;
- }
-
- err = mlx4_MAP_ICM_AUX(dev, priv->fw.aux_icm);
- if (err) {
- mlx4_err(dev, "MAP_ICM_AUX command failed, aborting.\n");
- goto err_free_aux;
- }
-
- err = mlx4_init_cmpt_table(dev, init_hca->cmpt_base, dev_cap->cmpt_entry_sz);
- if (err) {
- mlx4_err(dev, "Failed to map cMPT context memory, aborting.\n");
- goto err_unmap_aux;
- }
-
- err = mlx4_init_icm_table(dev, &priv->eq_table.table,
- init_hca->eqc_base, dev_cap->eqc_entry_sz,
- dev->caps.num_eqs, dev->caps.num_eqs,
- 0, 0);
- if (err) {
- mlx4_err(dev, "Failed to map EQ context memory, aborting.\n");
- goto err_unmap_cmpt;
- }
-
- /*
- * Reserved MTT entries must be aligned up to a cacheline
- * boundary, since the FW will write to them, while the driver
- * writes to all other MTT entries. (The variable
- * dev->caps.mtt_entry_sz below is really the MTT segment
- * size, not the raw entry size)
- */
- dev->caps.reserved_mtts =
- ALIGN(dev->caps.reserved_mtts * dev->caps.mtt_entry_sz,
- dma_get_cache_alignment()) / dev->caps.mtt_entry_sz;
-
- err = mlx4_init_icm_table(dev, &priv->mr_table.mtt_table,
- init_hca->mtt_base,
- dev->caps.mtt_entry_sz,
- dev->caps.num_mtt_segs,
- dev->caps.reserved_mtts, 1, 0);
- if (err) {
- mlx4_err(dev, "Failed to map MTT context memory, aborting.\n");
- goto err_unmap_eq;
- }
-
- err = mlx4_init_icm_table(dev, &priv->mr_table.dmpt_table,
- init_hca->dmpt_base,
- dev_cap->dmpt_entry_sz,
- dev->caps.num_mpts,
- dev->caps.reserved_mrws, 1, 1);
- if (err) {
- mlx4_err(dev, "Failed to map dMPT context memory, aborting.\n");
- goto err_unmap_mtt;
- }
-
- err = mlx4_init_icm_table(dev, &priv->qp_table.qp_table,
- init_hca->qpc_base,
- dev_cap->qpc_entry_sz,
- dev->caps.num_qps,
- dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
- 0, 0);
- if (err) {
- mlx4_err(dev, "Failed to map QP context memory, aborting.\n");
- goto err_unmap_dmpt;
- }
-
- err = mlx4_init_icm_table(dev, &priv->qp_table.auxc_table,
- init_hca->auxc_base,
- dev_cap->aux_entry_sz,
- dev->caps.num_qps,
- dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
- 0, 0);
- if (err) {
- mlx4_err(dev, "Failed to map AUXC context memory, aborting.\n");
- goto err_unmap_qp;
- }
-
- err = mlx4_init_icm_table(dev, &priv->qp_table.altc_table,
- init_hca->altc_base,
- dev_cap->altc_entry_sz,
- dev->caps.num_qps,
- dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
- 0, 0);
- if (err) {
- mlx4_err(dev, "Failed to map ALTC context memory, aborting.\n");
- goto err_unmap_auxc;
- }
-
- err = mlx4_init_icm_table(dev, &priv->qp_table.rdmarc_table,
- init_hca->rdmarc_base,
- dev_cap->rdmarc_entry_sz << priv->qp_table.rdmarc_shift,
- dev->caps.num_qps,
- dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
- 0, 0);
- if (err) {
- mlx4_err(dev, "Failed to map RDMARC context memory, aborting\n");
- goto err_unmap_altc;
- }
-
- err = mlx4_init_icm_table(dev, &priv->cq_table.table,
- init_hca->cqc_base,
- dev_cap->cqc_entry_sz,
- dev->caps.num_cqs,
- dev->caps.reserved_cqs, 0, 0);
- if (err) {
- mlx4_err(dev, "Failed to map CQ context memory, aborting.\n");
- goto err_unmap_rdmarc;
- }
-
- err = mlx4_init_icm_table(dev, &priv->srq_table.table,
- init_hca->srqc_base,
- dev_cap->srq_entry_sz,
- dev->caps.num_srqs,
- dev->caps.reserved_srqs, 0, 0);
- if (err) {
- mlx4_err(dev, "Failed to map SRQ context memory, aborting.\n");
- goto err_unmap_cq;
- }
-
- /*
- * It's not strictly required, but for simplicity just map the
- * whole multicast group table now. The table isn't very big
- * and it's a lot easier than trying to track ref counts.
- */
- err = mlx4_init_icm_table(dev, &priv->mcg_table.table,
- init_hca->mc_base, MLX4_MGM_ENTRY_SIZE,
- dev->caps.num_mgms + dev->caps.num_amgms,
- dev->caps.num_mgms + dev->caps.num_amgms,
- 0, 0);
- if (err) {
- mlx4_err(dev, "Failed to map MCG context memory, aborting.\n");
- goto err_unmap_srq;
- }
-
- return 0;
-
-err_unmap_srq:
- mlx4_cleanup_icm_table(dev, &priv->srq_table.table);
-
-err_unmap_cq:
- mlx4_cleanup_icm_table(dev, &priv->cq_table.table);
-
-err_unmap_rdmarc:
- mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table);
-
-err_unmap_altc:
- mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table);
-
-err_unmap_auxc:
- mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table);
-
-err_unmap_qp:
- mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
-
-err_unmap_dmpt:
- mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
-
-err_unmap_mtt:
- mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
-
-err_unmap_eq:
- mlx4_cleanup_icm_table(dev, &priv->eq_table.table);
-
-err_unmap_cmpt:
- mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
- mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
- mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
- mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
-
-err_unmap_aux:
- mlx4_UNMAP_ICM_AUX(dev);
-
-err_free_aux:
- mlx4_free_icm(dev, priv->fw.aux_icm, 0);
-
- return err;
-}
-
-static void mlx4_free_icms(struct mlx4_dev *dev)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
-
- mlx4_cleanup_icm_table(dev, &priv->mcg_table.table);
- mlx4_cleanup_icm_table(dev, &priv->srq_table.table);
- mlx4_cleanup_icm_table(dev, &priv->cq_table.table);
- mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table);
- mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table);
- mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table);
- mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
- mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
- mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
- mlx4_cleanup_icm_table(dev, &priv->eq_table.table);
- mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
- mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
- mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
- mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
-
- mlx4_UNMAP_ICM_AUX(dev);
- mlx4_free_icm(dev, priv->fw.aux_icm, 0);
-}
-
-static int map_bf_area(struct mlx4_dev *dev)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- resource_size_t bf_start;
- resource_size_t bf_len;
- int err = 0;
-
- bf_start = pci_resource_start(dev->pdev, 2) + (dev->caps.num_uars << PAGE_SHIFT);
- bf_len = pci_resource_len(dev->pdev, 2) - (dev->caps.num_uars << PAGE_SHIFT);
- priv->bf_mapping = io_mapping_create_wc(bf_start, bf_len);
- if (!priv->bf_mapping)
- err = -ENOMEM;
-
- return err;
-}
-
-static void unmap_bf_area(struct mlx4_dev *dev)
-{
- if (mlx4_priv(dev)->bf_mapping)
- io_mapping_free(mlx4_priv(dev)->bf_mapping);
-}
-
-static void mlx4_close_hca(struct mlx4_dev *dev)
-{
- unmap_bf_area(dev);
- mlx4_CLOSE_HCA(dev, 0);
- mlx4_free_icms(dev);
- mlx4_UNMAP_FA(dev);
- mlx4_free_icm(dev, mlx4_priv(dev)->fw.fw_icm, 0);
-}
-
-static int mlx4_init_hca(struct mlx4_dev *dev)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- struct mlx4_adapter adapter;
- struct mlx4_dev_cap dev_cap;
- struct mlx4_mod_stat_cfg mlx4_cfg;
- struct mlx4_profile profile;
- struct mlx4_init_hca_param init_hca;
- u64 icm_size;
- int err;
-
- err = mlx4_QUERY_FW(dev);
- if (err) {
- if (err == -EACCES)
- mlx4_info(dev, "non-primary physical function, skipping.\n");
- else
- mlx4_err(dev, "QUERY_FW command failed, aborting.\n");
- return err;
- }
-
- err = mlx4_load_fw(dev);
- if (err) {
- mlx4_err(dev, "Failed to start FW, aborting.\n");
- return err;
- }
-
- mlx4_cfg.log_pg_sz_m = 1;
- mlx4_cfg.log_pg_sz = 0;
- err = mlx4_MOD_STAT_CFG(dev, &mlx4_cfg);
- if (err)
- mlx4_warn(dev, "Failed to override log_pg_sz parameter\n");
-
- err = mlx4_dev_cap(dev, &dev_cap);
- if (err) {
- mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
- goto err_stop_fw;
- }
-
- profile = default_profile;
-
- icm_size = mlx4_make_profile(dev, &profile, &dev_cap, &init_hca);
- if ((long long) icm_size < 0) {
- err = icm_size;
- goto err_stop_fw;
- }
-
- if (map_bf_area(dev))
- mlx4_dbg(dev, "Failed to map blue flame area\n");
-
- init_hca.log_uar_sz = ilog2(dev->caps.num_uars);
-
- err = mlx4_init_icm(dev, &dev_cap, &init_hca, icm_size);
- if (err)
- goto err_stop_fw;
-
- err = mlx4_INIT_HCA(dev, &init_hca);
- if (err) {
- mlx4_err(dev, "INIT_HCA command failed, aborting.\n");
- goto err_free_icm;
- }
-
- err = mlx4_QUERY_ADAPTER(dev, &adapter);
- if (err) {
- mlx4_err(dev, "QUERY_ADAPTER command failed, aborting.\n");
- goto err_close;
- }
-
- priv->eq_table.inta_pin = adapter.inta_pin;
- memcpy(dev->board_id, adapter.board_id, sizeof dev->board_id);
-
- return 0;
-
-err_close:
- mlx4_CLOSE_HCA(dev, 0);
-
-err_free_icm:
- mlx4_free_icms(dev);
-
-err_stop_fw:
- unmap_bf_area(dev);
- mlx4_UNMAP_FA(dev);
- mlx4_free_icm(dev, priv->fw.fw_icm, 0);
-
- return err;
-}
-
-static int mlx4_init_counters_table(struct mlx4_dev *dev)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- int nent;
-
- if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS))
- return -ENOENT;
-
- nent = dev->caps.max_counters;
- return mlx4_bitmap_init(&priv->counters_bitmap, nent, nent - 1, 0, 0);
-}
-
-static void mlx4_cleanup_counters_table(struct mlx4_dev *dev)
-{
- mlx4_bitmap_cleanup(&mlx4_priv(dev)->counters_bitmap);
-}
-
-int mlx4_counter_alloc(struct mlx4_dev *dev, u32 *idx)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
-
- if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS))
- return -ENOENT;
-
- *idx = mlx4_bitmap_alloc(&priv->counters_bitmap);
- if (*idx == -1)
- return -ENOMEM;
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(mlx4_counter_alloc);
-
-void mlx4_counter_free(struct mlx4_dev *dev, u32 idx)
-{
- mlx4_bitmap_free(&mlx4_priv(dev)->counters_bitmap, idx);
- return;
-}
-EXPORT_SYMBOL_GPL(mlx4_counter_free);
-
-static int mlx4_setup_hca(struct mlx4_dev *dev)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- int err;
- int port;
- __be32 ib_port_default_caps;
-
- err = mlx4_init_uar_table(dev);
- if (err) {
- mlx4_err(dev, "Failed to initialize "
- "user access region table, aborting.\n");
- return err;
- }
-
- err = mlx4_uar_alloc(dev, &priv->driver_uar);
- if (err) {
- mlx4_err(dev, "Failed to allocate driver access region, "
- "aborting.\n");
- goto err_uar_table_free;
- }
-
- priv->kar = ioremap((phys_addr_t) priv->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
- if (!priv->kar) {
- mlx4_err(dev, "Couldn't map kernel access region, "
- "aborting.\n");
- err = -ENOMEM;
- goto err_uar_free;
- }
-
- err = mlx4_init_pd_table(dev);
- if (err) {
- mlx4_err(dev, "Failed to initialize "
- "protection domain table, aborting.\n");
- goto err_kar_unmap;
- }
-
- err = mlx4_init_mr_table(dev);
- if (err) {
- mlx4_err(dev, "Failed to initialize "
- "memory region table, aborting.\n");
- goto err_pd_table_free;
- }
-
- err = mlx4_init_eq_table(dev);
- if (err) {
- mlx4_err(dev, "Failed to initialize "
- "event queue table, aborting.\n");
- goto err_mr_table_free;
- }
-
- err = mlx4_cmd_use_events(dev);
- if (err) {
- mlx4_err(dev, "Failed to switch to event-driven "
- "firmware commands, aborting.\n");
- goto err_eq_table_free;
- }
-
- err = mlx4_NOP(dev);
- if (err) {
- if (dev->flags & MLX4_FLAG_MSI_X) {
- mlx4_warn(dev, "NOP command failed to generate MSI-X "
- "interrupt IRQ %d).\n",
- priv->eq_table.eq[dev->caps.num_comp_vectors].irq);
- mlx4_warn(dev, "Trying again without MSI-X.\n");
- } else {
- mlx4_err(dev, "NOP command failed to generate interrupt "
- "(IRQ %d), aborting.\n",
- priv->eq_table.eq[dev->caps.num_comp_vectors].irq);
- mlx4_err(dev, "BIOS or ACPI interrupt routing problem?\n");
- }
-
- goto err_cmd_poll;
- }
-
- mlx4_dbg(dev, "NOP command IRQ test passed\n");
-
- err = mlx4_init_cq_table(dev);
- if (err) {
- mlx4_err(dev, "Failed to initialize "
- "completion queue table, aborting.\n");
- goto err_cmd_poll;
- }
-
- err = mlx4_init_srq_table(dev);
- if (err) {
- mlx4_err(dev, "Failed to initialize "
- "shared receive queue table, aborting.\n");
- goto err_cq_table_free;
- }
-
- err = mlx4_init_qp_table(dev);
- if (err) {
- mlx4_err(dev, "Failed to initialize "
- "queue pair table, aborting.\n");
- goto err_srq_table_free;
- }
-
- err = mlx4_init_mcg_table(dev);
- if (err) {
- mlx4_err(dev, "Failed to initialize "
- "multicast group table, aborting.\n");
- goto err_qp_table_free;
- }
-
- err = mlx4_init_counters_table(dev);
- if (err && err != -ENOENT) {
- mlx4_err(dev, "Failed to initialize counters table, aborting.\n");
- goto err_counters_table_free;
- }
-
- for (port = 1; port <= dev->caps.num_ports; port++) {
- enum mlx4_port_type port_type = 0;
- mlx4_SENSE_PORT(dev, port, &port_type);
- if (port_type)
- dev->caps.port_type[port] = port_type;
- ib_port_default_caps = 0;
- err = mlx4_get_port_ib_caps(dev, port, &ib_port_default_caps);
- if (err)
- mlx4_warn(dev, "failed to get port %d default "
- "ib capabilities (%d). Continuing with "
- "caps = 0\n", port, err);
- dev->caps.ib_port_def_cap[port] = ib_port_default_caps;
- err = mlx4_SET_PORT(dev, port);
- if (err) {
- mlx4_err(dev, "Failed to set port %d, aborting\n",
- port);
- goto err_mcg_table_free;
- }
- }
- mlx4_set_port_mask(dev);
-
- return 0;
-
-err_mcg_table_free:
- mlx4_cleanup_mcg_table(dev);
-
-err_counters_table_free:
- mlx4_cleanup_counters_table(dev);
-
-err_qp_table_free:
- mlx4_cleanup_qp_table(dev);
-
-err_srq_table_free:
- mlx4_cleanup_srq_table(dev);
-
-err_cq_table_free:
- mlx4_cleanup_cq_table(dev);
-
-err_cmd_poll:
- mlx4_cmd_use_polling(dev);
-
-err_eq_table_free:
- mlx4_cleanup_eq_table(dev);
-
-err_mr_table_free:
- mlx4_cleanup_mr_table(dev);
-
-err_pd_table_free:
- mlx4_cleanup_pd_table(dev);
-
-err_kar_unmap:
- iounmap(priv->kar);
-
-err_uar_free:
- mlx4_uar_free(dev, &priv->driver_uar);
-
-err_uar_table_free:
- mlx4_cleanup_uar_table(dev);
- return err;
-}
-
-static void mlx4_enable_msi_x(struct mlx4_dev *dev)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- struct msix_entry *entries;
- int nreq = min_t(int, dev->caps.num_ports *
- min_t(int, num_online_cpus() + 1, MAX_MSIX_P_PORT)
- + MSIX_LEGACY_SZ, MAX_MSIX);
- int err;
- int i;
-
- if (msi_x) {
- nreq = min_t(int, dev->caps.num_eqs - dev->caps.reserved_eqs,
- nreq);
- entries = kcalloc(nreq, sizeof *entries, GFP_KERNEL);
- if (!entries)
- goto no_msi;
-
- for (i = 0; i < nreq; ++i)
- entries[i].entry = i;
-
- retry:
- err = pci_enable_msix(dev->pdev, entries, nreq);
- if (err) {
- /* Try again if at least 2 vectors are available */
- if (err > 1) {
- mlx4_info(dev, "Requested %d vectors, "
- "but only %d MSI-X vectors available, "
- "trying again\n", nreq, err);
- nreq = err;
- goto retry;
- }
- kfree(entries);
- goto no_msi;
- }
-
- if (nreq <
- MSIX_LEGACY_SZ + dev->caps.num_ports * MIN_MSIX_P_PORT) {
- /*Working in legacy mode , all EQ's shared*/
- dev->caps.comp_pool = 0;
- dev->caps.num_comp_vectors = nreq - 1;
- } else {
- dev->caps.comp_pool = nreq - MSIX_LEGACY_SZ;
- dev->caps.num_comp_vectors = MSIX_LEGACY_SZ - 1;
- }
- for (i = 0; i < nreq; ++i)
- priv->eq_table.eq[i].irq = entries[i].vector;
-
- dev->flags |= MLX4_FLAG_MSI_X;
-
- kfree(entries);
- return;
- }
-
-no_msi:
- dev->caps.num_comp_vectors = 1;
- dev->caps.comp_pool = 0;
-
- for (i = 0; i < 2; ++i)
- priv->eq_table.eq[i].irq = dev->pdev->irq;
-}
-
-static int mlx4_init_port_info(struct mlx4_dev *dev, int port)
-{
- struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
- int err = 0;
-
- info->dev = dev;
- info->port = port;
- mlx4_init_mac_table(dev, &info->mac_table);
- mlx4_init_vlan_table(dev, &info->vlan_table);
- info->base_qpn = dev->caps.reserved_qps_base[MLX4_QP_REGION_ETH_ADDR] +
- (port - 1) * (1 << log_num_mac);
-
- sprintf(info->dev_name, "mlx4_port%d", port);
- info->port_attr.attr.name = info->dev_name;
- info->port_attr.attr.mode = S_IRUGO | S_IWUSR;
- info->port_attr.show = show_port_type;
- info->port_attr.store = set_port_type;
- sysfs_attr_init(&info->port_attr.attr);
-
- err = device_create_file(&dev->pdev->dev, &info->port_attr);
- if (err) {
- mlx4_err(dev, "Failed to create file for port %d\n", port);
- info->port = -1;
- }
-
- return err;
-}
-
-static void mlx4_cleanup_port_info(struct mlx4_port_info *info)
-{
- if (info->port < 0)
- return;
-
- device_remove_file(&info->dev->pdev->dev, &info->port_attr);
-}
-
-static int mlx4_init_steering(struct mlx4_dev *dev)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- int num_entries = dev->caps.num_ports;
- int i, j;
-
- priv->steer = kzalloc(sizeof(struct mlx4_steer) * num_entries, GFP_KERNEL);
- if (!priv->steer)
- return -ENOMEM;
-
- for (i = 0; i < num_entries; i++) {
- for (j = 0; j < MLX4_NUM_STEERS; j++) {
- INIT_LIST_HEAD(&priv->steer[i].promisc_qps[j]);
- INIT_LIST_HEAD(&priv->steer[i].steer_entries[j]);
- }
- INIT_LIST_HEAD(&priv->steer[i].high_prios);
- }
- return 0;
-}
-
-static void mlx4_clear_steering(struct mlx4_dev *dev)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- struct mlx4_steer_index *entry, *tmp_entry;
- struct mlx4_promisc_qp *pqp, *tmp_pqp;
- int num_entries = dev->caps.num_ports;
- int i, j;
-
- for (i = 0; i < num_entries; i++) {
- for (j = 0; j < MLX4_NUM_STEERS; j++) {
- list_for_each_entry_safe(pqp, tmp_pqp,
- &priv->steer[i].promisc_qps[j],
- list) {
- list_del(&pqp->list);
- kfree(pqp);
- }
- list_for_each_entry_safe(entry, tmp_entry,
- &priv->steer[i].steer_entries[j],
- list) {
- list_del(&entry->list);
- list_for_each_entry_safe(pqp, tmp_pqp,
- &entry->duplicates,
- list) {
- list_del(&pqp->list);
- kfree(pqp);
- }
- kfree(entry);
- }
- }
- }
- kfree(priv->steer);
-}
-
-static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
-{
- struct mlx4_priv *priv;
- struct mlx4_dev *dev;
- int err;
- int port;
-
- pr_info(DRV_NAME ": Initializing %s\n", pci_name(pdev));
-
- err = pci_enable_device(pdev);
- if (err) {
- dev_err(&pdev->dev, "Cannot enable PCI device, "
- "aborting.\n");
- return err;
- }
-
- /*
- * Check for BARs. We expect 0: 1MB
- */
- if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
- pci_resource_len(pdev, 0) != 1 << 20) {
- dev_err(&pdev->dev, "Missing DCS, aborting.\n");
- err = -ENODEV;
- goto err_disable_pdev;
- }
- if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
- dev_err(&pdev->dev, "Missing UAR, aborting.\n");
- err = -ENODEV;
- goto err_disable_pdev;
- }
-
- err = pci_request_regions(pdev, DRV_NAME);
- if (err) {
- dev_err(&pdev->dev, "Couldn't get PCI resources, aborting\n");
- goto err_disable_pdev;
- }
-
- pci_set_master(pdev);
-
- err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
- if (err) {
- dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
- err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
- if (err) {
- dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
- goto err_release_regions;
- }
- }
- err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
- if (err) {
- dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
- "consistent PCI DMA mask.\n");
- err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
- if (err) {
- dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
- "aborting.\n");
- goto err_release_regions;
- }
- }
-
- /* Allow large DMA segments, up to the firmware limit of 1 GB */
- dma_set_max_seg_size(&pdev->dev, 1024 * 1024 * 1024);
-
- priv = kzalloc(sizeof *priv, GFP_KERNEL);
- if (!priv) {
- dev_err(&pdev->dev, "Device struct alloc failed, "
- "aborting.\n");
- err = -ENOMEM;
- goto err_release_regions;
- }
-
- dev = &priv->dev;
- dev->pdev = pdev;
- INIT_LIST_HEAD(&priv->ctx_list);
- spin_lock_init(&priv->ctx_lock);
-
- mutex_init(&priv->port_mutex);
-
- INIT_LIST_HEAD(&priv->pgdir_list);
- mutex_init(&priv->pgdir_mutex);
-
- INIT_LIST_HEAD(&priv->bf_list);
- mutex_init(&priv->bf_mutex);
-
- dev->rev_id = pdev->revision;
-
- /*
- * Now reset the HCA before we touch the PCI capabilities or
- * attempt a firmware command, since a boot ROM may have left
- * the HCA in an undefined state.
- */
- err = mlx4_reset(dev);
- if (err) {
- mlx4_err(dev, "Failed to reset HCA, aborting.\n");
- goto err_free_dev;
- }
-
- if (mlx4_cmd_init(dev)) {
- mlx4_err(dev, "Failed to init command interface, aborting.\n");
- goto err_free_dev;
- }
-
- err = mlx4_init_hca(dev);
- if (err)
- goto err_cmd;
-
- err = mlx4_alloc_eq_table(dev);
- if (err)
- goto err_close;
-
- priv->msix_ctl.pool_bm = 0;
- spin_lock_init(&priv->msix_ctl.pool_lock);
-
- mlx4_enable_msi_x(dev);
-
- err = mlx4_init_steering(dev);
- if (err)
- goto err_free_eq;
-
- err = mlx4_setup_hca(dev);
- if (err == -EBUSY && (dev->flags & MLX4_FLAG_MSI_X)) {
- dev->flags &= ~MLX4_FLAG_MSI_X;
- pci_disable_msix(pdev);
- err = mlx4_setup_hca(dev);
- }
-
- if (err)
- goto err_steer;
-
- for (port = 1; port <= dev->caps.num_ports; port++) {
- err = mlx4_init_port_info(dev, port);
- if (err)
- goto err_port;
- }
-
- err = mlx4_register_device(dev);
- if (err)
- goto err_port;
-
- mlx4_sense_init(dev);
- mlx4_start_sense(dev);
-
- pci_set_drvdata(pdev, dev);
-
- return 0;
-
-err_port:
- for (--port; port >= 1; --port)
- mlx4_cleanup_port_info(&priv->port[port]);
-
- mlx4_cleanup_counters_table(dev);
- mlx4_cleanup_mcg_table(dev);
- mlx4_cleanup_qp_table(dev);
- mlx4_cleanup_srq_table(dev);
- mlx4_cleanup_cq_table(dev);
- mlx4_cmd_use_polling(dev);
- mlx4_cleanup_eq_table(dev);
- mlx4_cleanup_mr_table(dev);
- mlx4_cleanup_pd_table(dev);
- mlx4_cleanup_uar_table(dev);
-
-err_steer:
- mlx4_clear_steering(dev);
-
-err_free_eq:
- mlx4_free_eq_table(dev);
-
-err_close:
- if (dev->flags & MLX4_FLAG_MSI_X)
- pci_disable_msix(pdev);
-
- mlx4_close_hca(dev);
-
-err_cmd:
- mlx4_cmd_cleanup(dev);
-
-err_free_dev:
- kfree(priv);
-
-err_release_regions:
- pci_release_regions(pdev);
-
-err_disable_pdev:
- pci_disable_device(pdev);
- pci_set_drvdata(pdev, NULL);
- return err;
-}
-
-static int __devinit mlx4_init_one(struct pci_dev *pdev,
- const struct pci_device_id *id)
-{
- printk_once(KERN_INFO "%s", mlx4_version);
-
- return __mlx4_init_one(pdev, id);
-}
-
-static void mlx4_remove_one(struct pci_dev *pdev)
-{
- struct mlx4_dev *dev = pci_get_drvdata(pdev);
- struct mlx4_priv *priv = mlx4_priv(dev);
- int p;
-
- if (dev) {
- mlx4_stop_sense(dev);
- mlx4_unregister_device(dev);
-
- for (p = 1; p <= dev->caps.num_ports; p++) {
- mlx4_cleanup_port_info(&priv->port[p]);
- mlx4_CLOSE_PORT(dev, p);
- }
-
- mlx4_cleanup_counters_table(dev);
- mlx4_cleanup_mcg_table(dev);
- mlx4_cleanup_qp_table(dev);
- mlx4_cleanup_srq_table(dev);
- mlx4_cleanup_cq_table(dev);
- mlx4_cmd_use_polling(dev);
- mlx4_cleanup_eq_table(dev);
- mlx4_cleanup_mr_table(dev);
- mlx4_cleanup_pd_table(dev);
-
- iounmap(priv->kar);
- mlx4_uar_free(dev, &priv->driver_uar);
- mlx4_cleanup_uar_table(dev);
- mlx4_clear_steering(dev);
- mlx4_free_eq_table(dev);
- mlx4_close_hca(dev);
- mlx4_cmd_cleanup(dev);
-
- if (dev->flags & MLX4_FLAG_MSI_X)
- pci_disable_msix(pdev);
-
- kfree(priv);
- pci_release_regions(pdev);
- pci_disable_device(pdev);
- pci_set_drvdata(pdev, NULL);
- }
-}
-
-int mlx4_restart_one(struct pci_dev *pdev)
-{
- mlx4_remove_one(pdev);
- return __mlx4_init_one(pdev, NULL);
-}
-
-static DEFINE_PCI_DEVICE_TABLE(mlx4_pci_table) = {
- { PCI_VDEVICE(MELLANOX, 0x6340) }, /* MT25408 "Hermon" SDR */
- { PCI_VDEVICE(MELLANOX, 0x634a) }, /* MT25408 "Hermon" DDR */
- { PCI_VDEVICE(MELLANOX, 0x6354) }, /* MT25408 "Hermon" QDR */
- { PCI_VDEVICE(MELLANOX, 0x6732) }, /* MT25408 "Hermon" DDR PCIe gen2 */
- { PCI_VDEVICE(MELLANOX, 0x673c) }, /* MT25408 "Hermon" QDR PCIe gen2 */
- { PCI_VDEVICE(MELLANOX, 0x6368) }, /* MT25408 "Hermon" EN 10GigE */
- { PCI_VDEVICE(MELLANOX, 0x6750) }, /* MT25408 "Hermon" EN 10GigE PCIe gen2 */
- { PCI_VDEVICE(MELLANOX, 0x6372) }, /* MT25458 ConnectX EN 10GBASE-T 10GigE */
- { PCI_VDEVICE(MELLANOX, 0x675a) }, /* MT25458 ConnectX EN 10GBASE-T+Gen2 10GigE */
- { PCI_VDEVICE(MELLANOX, 0x6764) }, /* MT26468 ConnectX EN 10GigE PCIe gen2*/
- { PCI_VDEVICE(MELLANOX, 0x6746) }, /* MT26438 ConnectX EN 40GigE PCIe gen2 5GT/s */
- { PCI_VDEVICE(MELLANOX, 0x676e) }, /* MT26478 ConnectX2 40GigE PCIe gen2 */
- { PCI_VDEVICE(MELLANOX, 0x1002) }, /* MT25400 Family [ConnectX-2 Virtual Function] */
- { PCI_VDEVICE(MELLANOX, 0x1003) }, /* MT27500 Family [ConnectX-3] */
- { PCI_VDEVICE(MELLANOX, 0x1004) }, /* MT27500 Family [ConnectX-3 Virtual Function] */
- { PCI_VDEVICE(MELLANOX, 0x1005) }, /* MT27510 Family */
- { PCI_VDEVICE(MELLANOX, 0x1006) }, /* MT27511 Family */
- { PCI_VDEVICE(MELLANOX, 0x1007) }, /* MT27520 Family */
- { PCI_VDEVICE(MELLANOX, 0x1008) }, /* MT27521 Family */
- { PCI_VDEVICE(MELLANOX, 0x1009) }, /* MT27530 Family */
- { PCI_VDEVICE(MELLANOX, 0x100a) }, /* MT27531 Family */
- { PCI_VDEVICE(MELLANOX, 0x100b) }, /* MT27540 Family */
- { PCI_VDEVICE(MELLANOX, 0x100c) }, /* MT27541 Family */
- { PCI_VDEVICE(MELLANOX, 0x100d) }, /* MT27550 Family */
- { PCI_VDEVICE(MELLANOX, 0x100e) }, /* MT27551 Family */
- { PCI_VDEVICE(MELLANOX, 0x100f) }, /* MT27560 Family */
- { PCI_VDEVICE(MELLANOX, 0x1010) }, /* MT27561 Family */
- { 0, }
-};
-
-MODULE_DEVICE_TABLE(pci, mlx4_pci_table);
-
-static struct pci_driver mlx4_driver = {
- .name = DRV_NAME,
- .id_table = mlx4_pci_table,
- .probe = mlx4_init_one,
- .remove = __devexit_p(mlx4_remove_one)
-};
-
-static int __init mlx4_verify_params(void)
-{
- if ((log_num_mac < 0) || (log_num_mac > 7)) {
- pr_warning("mlx4_core: bad num_mac: %d\n", log_num_mac);
- return -1;
- }
-
- if ((log_num_vlan < 0) || (log_num_vlan > 7)) {
- pr_warning("mlx4_core: bad num_vlan: %d\n", log_num_vlan);
- return -1;
- }
-
- if ((log_mtts_per_seg < 1) || (log_mtts_per_seg > 7)) {
- pr_warning("mlx4_core: bad log_mtts_per_seg: %d\n", log_mtts_per_seg);
- return -1;
- }
-
- return 0;
-}
-
-static int __init mlx4_init(void)
-{
- int ret;
-
- if (mlx4_verify_params())
- return -EINVAL;
-
- mlx4_catas_init();
-
- mlx4_wq = create_singlethread_workqueue("mlx4");
- if (!mlx4_wq)
- return -ENOMEM;
-
- ret = pci_register_driver(&mlx4_driver);
- return ret < 0 ? ret : 0;
-}
-
-static void __exit mlx4_cleanup(void)
-{
- pci_unregister_driver(&mlx4_driver);
- destroy_workqueue(mlx4_wq);
-}
-
-module_init(mlx4_init);
-module_exit(mlx4_cleanup);
+++ /dev/null
-/*
- * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
- * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include <linux/string.h>
-#include <linux/etherdevice.h>
-
-#include <linux/mlx4/cmd.h>
-
-#include "mlx4.h"
-
-#define MGM_QPN_MASK 0x00FFFFFF
-#define MGM_BLCK_LB_BIT 30
-
-static const u8 zero_gid[16]; /* automatically initialized to 0 */
-
-static int mlx4_READ_ENTRY(struct mlx4_dev *dev, int index,
- struct mlx4_cmd_mailbox *mailbox)
-{
- return mlx4_cmd_box(dev, 0, mailbox->dma, index, 0, MLX4_CMD_READ_MCG,
- MLX4_CMD_TIME_CLASS_A);
-}
-
-static int mlx4_WRITE_ENTRY(struct mlx4_dev *dev, int index,
- struct mlx4_cmd_mailbox *mailbox)
-{
- return mlx4_cmd(dev, mailbox->dma, index, 0, MLX4_CMD_WRITE_MCG,
- MLX4_CMD_TIME_CLASS_A);
-}
-
-static int mlx4_WRITE_PROMISC(struct mlx4_dev *dev, u8 vep_num, u8 port, u8 steer,
- struct mlx4_cmd_mailbox *mailbox)
-{
- u32 in_mod;
-
- in_mod = (u32) vep_num << 24 | (u32) port << 16 | steer << 1;
- return mlx4_cmd(dev, mailbox->dma, in_mod, 0x1,
- MLX4_CMD_WRITE_MCG, MLX4_CMD_TIME_CLASS_A);
-}
-
-static int mlx4_GID_HASH(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
- u16 *hash, u8 op_mod)
-{
- u64 imm;
- int err;
-
- err = mlx4_cmd_imm(dev, mailbox->dma, &imm, 0, op_mod,
- MLX4_CMD_MGID_HASH, MLX4_CMD_TIME_CLASS_A);
-
- if (!err)
- *hash = imm;
-
- return err;
-}
-
-static struct mlx4_promisc_qp *get_promisc_qp(struct mlx4_dev *dev, u8 pf_num,
- enum mlx4_steer_type steer,
- u32 qpn)
-{
- struct mlx4_steer *s_steer = &mlx4_priv(dev)->steer[pf_num];
- struct mlx4_promisc_qp *pqp;
-
- list_for_each_entry(pqp, &s_steer->promisc_qps[steer], list) {
- if (pqp->qpn == qpn)
- return pqp;
- }
- /* not found */
- return NULL;
-}
-
-/*
- * Add new entry to steering data structure.
- * All promisc QPs should be added as well
- */
-static int new_steering_entry(struct mlx4_dev *dev, u8 vep_num, u8 port,
- enum mlx4_steer_type steer,
- unsigned int index, u32 qpn)
-{
- struct mlx4_steer *s_steer;
- struct mlx4_cmd_mailbox *mailbox;
- struct mlx4_mgm *mgm;
- u32 members_count;
- struct mlx4_steer_index *new_entry;
- struct mlx4_promisc_qp *pqp;
- struct mlx4_promisc_qp *dqp = NULL;
- u32 prot;
- int err;
- u8 pf_num;
-
- pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1);
- s_steer = &mlx4_priv(dev)->steer[pf_num];
- new_entry = kzalloc(sizeof *new_entry, GFP_KERNEL);
- if (!new_entry)
- return -ENOMEM;
-
- INIT_LIST_HEAD(&new_entry->duplicates);
- new_entry->index = index;
- list_add_tail(&new_entry->list, &s_steer->steer_entries[steer]);
-
- /* If the given qpn is also a promisc qp,
- * it should be inserted to duplicates list
- */
- pqp = get_promisc_qp(dev, pf_num, steer, qpn);
- if (pqp) {
- dqp = kmalloc(sizeof *dqp, GFP_KERNEL);
- if (!dqp) {
- err = -ENOMEM;
- goto out_alloc;
- }
- dqp->qpn = qpn;
- list_add_tail(&dqp->list, &new_entry->duplicates);
- }
-
- /* if no promisc qps for this vep, we are done */
- if (list_empty(&s_steer->promisc_qps[steer]))
- return 0;
-
- /* now need to add all the promisc qps to the new
- * steering entry, as they should also receive the packets
- * destined to this address */
- mailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(mailbox)) {
- err = -ENOMEM;
- goto out_alloc;
- }
- mgm = mailbox->buf;
-
- err = mlx4_READ_ENTRY(dev, index, mailbox);
- if (err)
- goto out_mailbox;
-
- members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
- prot = be32_to_cpu(mgm->members_count) >> 30;
- list_for_each_entry(pqp, &s_steer->promisc_qps[steer], list) {
- /* don't add already existing qpn */
- if (pqp->qpn == qpn)
- continue;
- if (members_count == MLX4_QP_PER_MGM) {
- /* out of space */
- err = -ENOMEM;
- goto out_mailbox;
- }
-
- /* add the qpn */
- mgm->qp[members_count++] = cpu_to_be32(pqp->qpn & MGM_QPN_MASK);
- }
- /* update the qps count and update the entry with all the promisc qps*/
- mgm->members_count = cpu_to_be32(members_count | (prot << 30));
- err = mlx4_WRITE_ENTRY(dev, index, mailbox);
-
-out_mailbox:
- mlx4_free_cmd_mailbox(dev, mailbox);
- if (!err)
- return 0;
-out_alloc:
- if (dqp) {
- list_del(&dqp->list);
- kfree(dqp);
- }
- list_del(&new_entry->list);
- kfree(new_entry);
- return err;
-}
-
-/* update the data structures with existing steering entry */
-static int existing_steering_entry(struct mlx4_dev *dev, u8 vep_num, u8 port,
- enum mlx4_steer_type steer,
- unsigned int index, u32 qpn)
-{
- struct mlx4_steer *s_steer;
- struct mlx4_steer_index *tmp_entry, *entry = NULL;
- struct mlx4_promisc_qp *pqp;
- struct mlx4_promisc_qp *dqp;
- u8 pf_num;
-
- pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1);
- s_steer = &mlx4_priv(dev)->steer[pf_num];
-
- pqp = get_promisc_qp(dev, pf_num, steer, qpn);
- if (!pqp)
- return 0; /* nothing to do */
-
- list_for_each_entry(tmp_entry, &s_steer->steer_entries[steer], list) {
- if (tmp_entry->index == index) {
- entry = tmp_entry;
- break;
- }
- }
- if (unlikely(!entry)) {
- mlx4_warn(dev, "Steering entry at index %x is not registered\n", index);
- return -EINVAL;
- }
-
- /* the given qpn is listed as a promisc qpn
- * we need to add it as a duplicate to this entry
- * for future references */
- list_for_each_entry(dqp, &entry->duplicates, list) {
- if (qpn == dqp->qpn)
- return 0; /* qp is already duplicated */
- }
-
- /* add the qp as a duplicate on this index */
- dqp = kmalloc(sizeof *dqp, GFP_KERNEL);
- if (!dqp)
- return -ENOMEM;
- dqp->qpn = qpn;
- list_add_tail(&dqp->list, &entry->duplicates);
-
- return 0;
-}
-
-/* Check whether a qpn is a duplicate on steering entry
- * If so, it should not be removed from mgm */
-static bool check_duplicate_entry(struct mlx4_dev *dev, u8 vep_num, u8 port,
- enum mlx4_steer_type steer,
- unsigned int index, u32 qpn)
-{
- struct mlx4_steer *s_steer;
- struct mlx4_steer_index *tmp_entry, *entry = NULL;
- struct mlx4_promisc_qp *dqp, *tmp_dqp;
- u8 pf_num;
-
- pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1);
- s_steer = &mlx4_priv(dev)->steer[pf_num];
-
- /* if qp is not promisc, it cannot be duplicated */
- if (!get_promisc_qp(dev, pf_num, steer, qpn))
- return false;
-
- /* The qp is promisc qp so it is a duplicate on this index
- * Find the index entry, and remove the duplicate */
- list_for_each_entry(tmp_entry, &s_steer->steer_entries[steer], list) {
- if (tmp_entry->index == index) {
- entry = tmp_entry;
- break;
- }
- }
- if (unlikely(!entry)) {
- mlx4_warn(dev, "Steering entry for index %x is not registered\n", index);
- return false;
- }
- list_for_each_entry_safe(dqp, tmp_dqp, &entry->duplicates, list) {
- if (dqp->qpn == qpn) {
- list_del(&dqp->list);
- kfree(dqp);
- }
- }
- return true;
-}
-
-/* I a steering entry contains only promisc QPs, it can be removed. */
-static bool can_remove_steering_entry(struct mlx4_dev *dev, u8 vep_num, u8 port,
- enum mlx4_steer_type steer,
- unsigned int index, u32 tqpn)
-{
- struct mlx4_steer *s_steer;
- struct mlx4_cmd_mailbox *mailbox;
- struct mlx4_mgm *mgm;
- struct mlx4_steer_index *entry = NULL, *tmp_entry;
- u32 qpn;
- u32 members_count;
- bool ret = false;
- int i;
- u8 pf_num;
-
- pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1);
- s_steer = &mlx4_priv(dev)->steer[pf_num];
-
- mailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(mailbox))
- return false;
- mgm = mailbox->buf;
-
- if (mlx4_READ_ENTRY(dev, index, mailbox))
- goto out;
- members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
- for (i = 0; i < members_count; i++) {
- qpn = be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK;
- if (!get_promisc_qp(dev, pf_num, steer, qpn) && qpn != tqpn) {
- /* the qp is not promisc, the entry can't be removed */
- goto out;
- }
- }
- /* All the qps currently registered for this entry are promiscuous,
- * Checking for duplicates */
- ret = true;
- list_for_each_entry_safe(entry, tmp_entry, &s_steer->steer_entries[steer], list) {
- if (entry->index == index) {
- if (list_empty(&entry->duplicates)) {
- list_del(&entry->list);
- kfree(entry);
- } else {
- /* This entry contains duplicates so it shouldn't be removed */
- ret = false;
- goto out;
- }
- }
- }
-
-out:
- mlx4_free_cmd_mailbox(dev, mailbox);
- return ret;
-}
-
-static int add_promisc_qp(struct mlx4_dev *dev, u8 vep_num, u8 port,
- enum mlx4_steer_type steer, u32 qpn)
-{
- struct mlx4_steer *s_steer;
- struct mlx4_cmd_mailbox *mailbox;
- struct mlx4_mgm *mgm;
- struct mlx4_steer_index *entry;
- struct mlx4_promisc_qp *pqp;
- struct mlx4_promisc_qp *dqp;
- u32 members_count;
- u32 prot;
- int i;
- bool found;
- int last_index;
- int err;
- u8 pf_num;
- struct mlx4_priv *priv = mlx4_priv(dev);
- pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1);
- s_steer = &mlx4_priv(dev)->steer[pf_num];
-
- mutex_lock(&priv->mcg_table.mutex);
-
- if (get_promisc_qp(dev, pf_num, steer, qpn)) {
- err = 0; /* Noting to do, already exists */
- goto out_mutex;
- }
-
- pqp = kmalloc(sizeof *pqp, GFP_KERNEL);
- if (!pqp) {
- err = -ENOMEM;
- goto out_mutex;
- }
- pqp->qpn = qpn;
-
- mailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(mailbox)) {
- err = -ENOMEM;
- goto out_alloc;
- }
- mgm = mailbox->buf;
-
- /* the promisc qp needs to be added for each one of the steering
- * entries, if it already exists, needs to be added as a duplicate
- * for this entry */
- list_for_each_entry(entry, &s_steer->steer_entries[steer], list) {
- err = mlx4_READ_ENTRY(dev, entry->index, mailbox);
- if (err)
- goto out_mailbox;
-
- members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
- prot = be32_to_cpu(mgm->members_count) >> 30;
- found = false;
- for (i = 0; i < members_count; i++) {
- if ((be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK) == qpn) {
- /* Entry already exists, add to duplicates */
- dqp = kmalloc(sizeof *dqp, GFP_KERNEL);
- if (!dqp)
- goto out_mailbox;
- dqp->qpn = qpn;
- list_add_tail(&dqp->list, &entry->duplicates);
- found = true;
- }
- }
- if (!found) {
- /* Need to add the qpn to mgm */
- if (members_count == MLX4_QP_PER_MGM) {
- /* entry is full */
- err = -ENOMEM;
- goto out_mailbox;
- }
- mgm->qp[members_count++] = cpu_to_be32(qpn & MGM_QPN_MASK);
- mgm->members_count = cpu_to_be32(members_count | (prot << 30));
- err = mlx4_WRITE_ENTRY(dev, entry->index, mailbox);
- if (err)
- goto out_mailbox;
- }
- last_index = entry->index;
- }
-
- /* add the new qpn to list of promisc qps */
- list_add_tail(&pqp->list, &s_steer->promisc_qps[steer]);
- /* now need to add all the promisc qps to default entry */
- memset(mgm, 0, sizeof *mgm);
- members_count = 0;
- list_for_each_entry(dqp, &s_steer->promisc_qps[steer], list)
- mgm->qp[members_count++] = cpu_to_be32(dqp->qpn & MGM_QPN_MASK);
- mgm->members_count = cpu_to_be32(members_count | MLX4_PROT_ETH << 30);
-
- err = mlx4_WRITE_PROMISC(dev, vep_num, port, steer, mailbox);
- if (err)
- goto out_list;
-
- mlx4_free_cmd_mailbox(dev, mailbox);
- mutex_unlock(&priv->mcg_table.mutex);
- return 0;
-
-out_list:
- list_del(&pqp->list);
-out_mailbox:
- mlx4_free_cmd_mailbox(dev, mailbox);
-out_alloc:
- kfree(pqp);
-out_mutex:
- mutex_unlock(&priv->mcg_table.mutex);
- return err;
-}
-
-static int remove_promisc_qp(struct mlx4_dev *dev, u8 vep_num, u8 port,
- enum mlx4_steer_type steer, u32 qpn)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- struct mlx4_steer *s_steer;
- struct mlx4_cmd_mailbox *mailbox;
- struct mlx4_mgm *mgm;
- struct mlx4_steer_index *entry;
- struct mlx4_promisc_qp *pqp;
- struct mlx4_promisc_qp *dqp;
- u32 members_count;
- bool found;
- bool back_to_list = false;
- int loc, i;
- int err;
- u8 pf_num;
-
- pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1);
- s_steer = &mlx4_priv(dev)->steer[pf_num];
- mutex_lock(&priv->mcg_table.mutex);
-
- pqp = get_promisc_qp(dev, pf_num, steer, qpn);
- if (unlikely(!pqp)) {
- mlx4_warn(dev, "QP %x is not promiscuous QP\n", qpn);
- /* nothing to do */
- err = 0;
- goto out_mutex;
- }
-
- /*remove from list of promisc qps */
- list_del(&pqp->list);
-
- /* set the default entry not to include the removed one */
- mailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(mailbox)) {
- err = -ENOMEM;
- back_to_list = true;
- goto out_list;
- }
- mgm = mailbox->buf;
- members_count = 0;
- list_for_each_entry(dqp, &s_steer->promisc_qps[steer], list)
- mgm->qp[members_count++] = cpu_to_be32(dqp->qpn & MGM_QPN_MASK);
- mgm->members_count = cpu_to_be32(members_count | MLX4_PROT_ETH << 30);
-
- err = mlx4_WRITE_PROMISC(dev, vep_num, port, steer, mailbox);
- if (err)
- goto out_mailbox;
-
- /* remove the qp from all the steering entries*/
- list_for_each_entry(entry, &s_steer->steer_entries[steer], list) {
- found = false;
- list_for_each_entry(dqp, &entry->duplicates, list) {
- if (dqp->qpn == qpn) {
- found = true;
- break;
- }
- }
- if (found) {
- /* a duplicate, no need to change the mgm,
- * only update the duplicates list */
- list_del(&dqp->list);
- kfree(dqp);
- } else {
- err = mlx4_READ_ENTRY(dev, entry->index, mailbox);
- if (err)
- goto out_mailbox;
- members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
- for (loc = -1, i = 0; i < members_count; ++i)
- if ((be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK) == qpn)
- loc = i;
-
- mgm->members_count = cpu_to_be32(--members_count |
- (MLX4_PROT_ETH << 30));
- mgm->qp[loc] = mgm->qp[i - 1];
- mgm->qp[i - 1] = 0;
-
- err = mlx4_WRITE_ENTRY(dev, entry->index, mailbox);
- if (err)
- goto out_mailbox;
- }
-
- }
-
-out_mailbox:
- mlx4_free_cmd_mailbox(dev, mailbox);
-out_list:
- if (back_to_list)
- list_add_tail(&pqp->list, &s_steer->promisc_qps[steer]);
- else
- kfree(pqp);
-out_mutex:
- mutex_unlock(&priv->mcg_table.mutex);
- return err;
-}
-
-/*
- * Caller must hold MCG table semaphore. gid and mgm parameters must
- * be properly aligned for command interface.
- *
- * Returns 0 unless a firmware command error occurs.
- *
- * If GID is found in MGM or MGM is empty, *index = *hash, *prev = -1
- * and *mgm holds MGM entry.
- *
- * if GID is found in AMGM, *index = index in AMGM, *prev = index of
- * previous entry in hash chain and *mgm holds AMGM entry.
- *
- * If no AMGM exists for given gid, *index = -1, *prev = index of last
- * entry in hash chain and *mgm holds end of hash chain.
- */
-static int find_entry(struct mlx4_dev *dev, u8 port,
- u8 *gid, enum mlx4_protocol prot,
- enum mlx4_steer_type steer,
- struct mlx4_cmd_mailbox *mgm_mailbox,
- u16 *hash, int *prev, int *index)
-{
- struct mlx4_cmd_mailbox *mailbox;
- struct mlx4_mgm *mgm = mgm_mailbox->buf;
- u8 *mgid;
- int err;
- u8 op_mod = (prot == MLX4_PROT_ETH) ?
- !!(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER) : 0;
-
- mailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(mailbox))
- return -ENOMEM;
- mgid = mailbox->buf;
-
- memcpy(mgid, gid, 16);
-
- err = mlx4_GID_HASH(dev, mailbox, hash, op_mod);
- mlx4_free_cmd_mailbox(dev, mailbox);
- if (err)
- return err;
-
- if (0)
- mlx4_dbg(dev, "Hash for %pI6 is %04x\n", gid, *hash);
-
- *index = *hash;
- *prev = -1;
-
- do {
- err = mlx4_READ_ENTRY(dev, *index, mgm_mailbox);
- if (err)
- return err;
-
- if (!(be32_to_cpu(mgm->members_count) & 0xffffff)) {
- if (*index != *hash) {
- mlx4_err(dev, "Found zero MGID in AMGM.\n");
- err = -EINVAL;
- }
- return err;
- }
-
- if (!memcmp(mgm->gid, gid, 16) &&
- be32_to_cpu(mgm->members_count) >> 30 == prot)
- return err;
-
- *prev = *index;
- *index = be32_to_cpu(mgm->next_gid_index) >> 6;
- } while (*index);
-
- *index = -1;
- return err;
-}
-
-int mlx4_qp_attach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
- int block_mcast_loopback, enum mlx4_protocol prot,
- enum mlx4_steer_type steer)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- struct mlx4_cmd_mailbox *mailbox;
- struct mlx4_mgm *mgm;
- u32 members_count;
- u16 hash;
- int index, prev;
- int link = 0;
- int i;
- int err;
- u8 port = gid[5];
- u8 new_entry = 0;
-
- mailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(mailbox))
- return PTR_ERR(mailbox);
- mgm = mailbox->buf;
-
- mutex_lock(&priv->mcg_table.mutex);
- err = find_entry(dev, port, gid, prot, steer,
- mailbox, &hash, &prev, &index);
- if (err)
- goto out;
-
- if (index != -1) {
- if (!(be32_to_cpu(mgm->members_count) & 0xffffff)) {
- new_entry = 1;
- memcpy(mgm->gid, gid, 16);
- }
- } else {
- link = 1;
-
- index = mlx4_bitmap_alloc(&priv->mcg_table.bitmap);
- if (index == -1) {
- mlx4_err(dev, "No AMGM entries left\n");
- err = -ENOMEM;
- goto out;
- }
- index += dev->caps.num_mgms;
-
- memset(mgm, 0, sizeof *mgm);
- memcpy(mgm->gid, gid, 16);
- }
-
- members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
- if (members_count == MLX4_QP_PER_MGM) {
- mlx4_err(dev, "MGM at index %x is full.\n", index);
- err = -ENOMEM;
- goto out;
- }
-
- for (i = 0; i < members_count; ++i)
- if ((be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK) == qp->qpn) {
- mlx4_dbg(dev, "QP %06x already a member of MGM\n", qp->qpn);
- err = 0;
- goto out;
- }
-
- if (block_mcast_loopback)
- mgm->qp[members_count++] = cpu_to_be32((qp->qpn & MGM_QPN_MASK) |
- (1U << MGM_BLCK_LB_BIT));
- else
- mgm->qp[members_count++] = cpu_to_be32(qp->qpn & MGM_QPN_MASK);
-
- mgm->members_count = cpu_to_be32(members_count | (u32) prot << 30);
-
- err = mlx4_WRITE_ENTRY(dev, index, mailbox);
- if (err)
- goto out;
-
- if (!link)
- goto out;
-
- err = mlx4_READ_ENTRY(dev, prev, mailbox);
- if (err)
- goto out;
-
- mgm->next_gid_index = cpu_to_be32(index << 6);
-
- err = mlx4_WRITE_ENTRY(dev, prev, mailbox);
- if (err)
- goto out;
-
-out:
- if (prot == MLX4_PROT_ETH) {
- /* manage the steering entry for promisc mode */
- if (new_entry)
- new_steering_entry(dev, 0, port, steer, index, qp->qpn);
- else
- existing_steering_entry(dev, 0, port, steer,
- index, qp->qpn);
- }
- if (err && link && index != -1) {
- if (index < dev->caps.num_mgms)
- mlx4_warn(dev, "Got AMGM index %d < %d",
- index, dev->caps.num_mgms);
- else
- mlx4_bitmap_free(&priv->mcg_table.bitmap,
- index - dev->caps.num_mgms);
- }
- mutex_unlock(&priv->mcg_table.mutex);
-
- mlx4_free_cmd_mailbox(dev, mailbox);
- return err;
-}
-
-int mlx4_qp_detach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
- enum mlx4_protocol prot, enum mlx4_steer_type steer)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- struct mlx4_cmd_mailbox *mailbox;
- struct mlx4_mgm *mgm;
- u32 members_count;
- u16 hash;
- int prev, index;
- int i, loc;
- int err;
- u8 port = gid[5];
- bool removed_entry = false;
-
- mailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(mailbox))
- return PTR_ERR(mailbox);
- mgm = mailbox->buf;
-
- mutex_lock(&priv->mcg_table.mutex);
-
- err = find_entry(dev, port, gid, prot, steer,
- mailbox, &hash, &prev, &index);
- if (err)
- goto out;
-
- if (index == -1) {
- mlx4_err(dev, "MGID %pI6 not found\n", gid);
- err = -EINVAL;
- goto out;
- }
-
- /* if this pq is also a promisc qp, it shouldn't be removed */
- if (prot == MLX4_PROT_ETH &&
- check_duplicate_entry(dev, 0, port, steer, index, qp->qpn))
- goto out;
-
- members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
- for (loc = -1, i = 0; i < members_count; ++i)
- if ((be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK) == qp->qpn)
- loc = i;
-
- if (loc == -1) {
- mlx4_err(dev, "QP %06x not found in MGM\n", qp->qpn);
- err = -EINVAL;
- goto out;
- }
-
-
- mgm->members_count = cpu_to_be32(--members_count | (u32) prot << 30);
- mgm->qp[loc] = mgm->qp[i - 1];
- mgm->qp[i - 1] = 0;
-
- if (prot == MLX4_PROT_ETH)
- removed_entry = can_remove_steering_entry(dev, 0, port, steer, index, qp->qpn);
- if (i != 1 && (prot != MLX4_PROT_ETH || !removed_entry)) {
- err = mlx4_WRITE_ENTRY(dev, index, mailbox);
- goto out;
- }
-
- /* We are going to delete the entry, members count should be 0 */
- mgm->members_count = cpu_to_be32((u32) prot << 30);
-
- if (prev == -1) {
- /* Remove entry from MGM */
- int amgm_index = be32_to_cpu(mgm->next_gid_index) >> 6;
- if (amgm_index) {
- err = mlx4_READ_ENTRY(dev, amgm_index, mailbox);
- if (err)
- goto out;
- } else
- memset(mgm->gid, 0, 16);
-
- err = mlx4_WRITE_ENTRY(dev, index, mailbox);
- if (err)
- goto out;
-
- if (amgm_index) {
- if (amgm_index < dev->caps.num_mgms)
- mlx4_warn(dev, "MGM entry %d had AMGM index %d < %d",
- index, amgm_index, dev->caps.num_mgms);
- else
- mlx4_bitmap_free(&priv->mcg_table.bitmap,
- amgm_index - dev->caps.num_mgms);
- }
- } else {
- /* Remove entry from AMGM */
- int cur_next_index = be32_to_cpu(mgm->next_gid_index) >> 6;
- err = mlx4_READ_ENTRY(dev, prev, mailbox);
- if (err)
- goto out;
-
- mgm->next_gid_index = cpu_to_be32(cur_next_index << 6);
-
- err = mlx4_WRITE_ENTRY(dev, prev, mailbox);
- if (err)
- goto out;
-
- if (index < dev->caps.num_mgms)
- mlx4_warn(dev, "entry %d had next AMGM index %d < %d",
- prev, index, dev->caps.num_mgms);
- else
- mlx4_bitmap_free(&priv->mcg_table.bitmap,
- index - dev->caps.num_mgms);
- }
-
-out:
- mutex_unlock(&priv->mcg_table.mutex);
-
- mlx4_free_cmd_mailbox(dev, mailbox);
- return err;
-}
-
-
-int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
- int block_mcast_loopback, enum mlx4_protocol prot)
-{
- enum mlx4_steer_type steer;
-
- steer = (is_valid_ether_addr(&gid[10])) ? MLX4_UC_STEER : MLX4_MC_STEER;
-
- if (prot == MLX4_PROT_ETH &&
- !(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER))
- return 0;
-
- if (prot == MLX4_PROT_ETH)
- gid[7] |= (steer << 1);
-
- return mlx4_qp_attach_common(dev, qp, gid,
- block_mcast_loopback, prot,
- steer);
-}
-EXPORT_SYMBOL_GPL(mlx4_multicast_attach);
-
-int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
- enum mlx4_protocol prot)
-{
- enum mlx4_steer_type steer;
-
- steer = (is_valid_ether_addr(&gid[10])) ? MLX4_UC_STEER : MLX4_MC_STEER;
-
- if (prot == MLX4_PROT_ETH &&
- !(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER))
- return 0;
-
- if (prot == MLX4_PROT_ETH) {
- gid[7] |= (steer << 1);
- }
-
- return mlx4_qp_detach_common(dev, qp, gid, prot, steer);
-}
-EXPORT_SYMBOL_GPL(mlx4_multicast_detach);
-
-
-int mlx4_multicast_promisc_add(struct mlx4_dev *dev, u32 qpn, u8 port)
-{
- if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER))
- return 0;
-
-
- return add_promisc_qp(dev, 0, port, MLX4_MC_STEER, qpn);
-}
-EXPORT_SYMBOL_GPL(mlx4_multicast_promisc_add);
-
-int mlx4_multicast_promisc_remove(struct mlx4_dev *dev, u32 qpn, u8 port)
-{
- if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER))
- return 0;
-
-
- return remove_promisc_qp(dev, 0, port, MLX4_MC_STEER, qpn);
-}
-EXPORT_SYMBOL_GPL(mlx4_multicast_promisc_remove);
-
-int mlx4_unicast_promisc_add(struct mlx4_dev *dev, u32 qpn, u8 port)
-{
- if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER))
- return 0;
-
-
- return add_promisc_qp(dev, 0, port, MLX4_UC_STEER, qpn);
-}
-EXPORT_SYMBOL_GPL(mlx4_unicast_promisc_add);
-
-int mlx4_unicast_promisc_remove(struct mlx4_dev *dev, u32 qpn, u8 port)
-{
- if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER))
- return 0;
-
- return remove_promisc_qp(dev, 0, port, MLX4_UC_STEER, qpn);
-}
-EXPORT_SYMBOL_GPL(mlx4_unicast_promisc_remove);
-
-int mlx4_init_mcg_table(struct mlx4_dev *dev)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- int err;
-
- err = mlx4_bitmap_init(&priv->mcg_table.bitmap, dev->caps.num_amgms,
- dev->caps.num_amgms - 1, 0, 0);
- if (err)
- return err;
-
- mutex_init(&priv->mcg_table.mutex);
-
- return 0;
-}
-
-void mlx4_cleanup_mcg_table(struct mlx4_dev *dev)
-{
- mlx4_bitmap_cleanup(&mlx4_priv(dev)->mcg_table.bitmap);
-}
+++ /dev/null
-/*
- * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
- * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
- * Copyright (c) 2005, 2006, 2007 Cisco Systems. All rights reserved.
- * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
- * Copyright (c) 2004 Voltaire, Inc. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#ifndef MLX4_H
-#define MLX4_H
-
-#include <linux/mutex.h>
-#include <linux/radix-tree.h>
-#include <linux/timer.h>
-#include <linux/semaphore.h>
-#include <linux/workqueue.h>
-
-#include <linux/mlx4/device.h>
-#include <linux/mlx4/driver.h>
-#include <linux/mlx4/doorbell.h>
-
-#define DRV_NAME "mlx4_core"
-#define DRV_VERSION "1.0"
-#define DRV_RELDATE "July 14, 2011"
-
-enum {
- MLX4_HCR_BASE = 0x80680,
- MLX4_HCR_SIZE = 0x0001c,
- MLX4_CLR_INT_SIZE = 0x00008
-};
-
-enum {
- MLX4_MGM_ENTRY_SIZE = 0x100,
- MLX4_QP_PER_MGM = 4 * (MLX4_MGM_ENTRY_SIZE / 16 - 2),
- MLX4_MTT_ENTRY_PER_SEG = 8
-};
-
-enum {
- MLX4_NUM_PDS = 1 << 15
-};
-
-enum {
- MLX4_CMPT_TYPE_QP = 0,
- MLX4_CMPT_TYPE_SRQ = 1,
- MLX4_CMPT_TYPE_CQ = 2,
- MLX4_CMPT_TYPE_EQ = 3,
- MLX4_CMPT_NUM_TYPE
-};
-
-enum {
- MLX4_CMPT_SHIFT = 24,
- MLX4_NUM_CMPTS = MLX4_CMPT_NUM_TYPE << MLX4_CMPT_SHIFT
-};
-
-#ifdef CONFIG_MLX4_DEBUG
-extern int mlx4_debug_level;
-#else /* CONFIG_MLX4_DEBUG */
-#define mlx4_debug_level (0)
-#endif /* CONFIG_MLX4_DEBUG */
-
-#define mlx4_dbg(mdev, format, arg...) \
-do { \
- if (mlx4_debug_level) \
- dev_printk(KERN_DEBUG, &mdev->pdev->dev, format, ##arg); \
-} while (0)
-
-#define mlx4_err(mdev, format, arg...) \
- dev_err(&mdev->pdev->dev, format, ##arg)
-#define mlx4_info(mdev, format, arg...) \
- dev_info(&mdev->pdev->dev, format, ##arg)
-#define mlx4_warn(mdev, format, arg...) \
- dev_warn(&mdev->pdev->dev, format, ##arg)
-
-struct mlx4_bitmap {
- u32 last;
- u32 top;
- u32 max;
- u32 reserved_top;
- u32 mask;
- u32 avail;
- spinlock_t lock;
- unsigned long *table;
-};
-
-struct mlx4_buddy {
- unsigned long **bits;
- unsigned int *num_free;
- int max_order;
- spinlock_t lock;
-};
-
-struct mlx4_icm;
-
-struct mlx4_icm_table {
- u64 virt;
- int num_icm;
- int num_obj;
- int obj_size;
- int lowmem;
- int coherent;
- struct mutex mutex;
- struct mlx4_icm **icm;
-};
-
-struct mlx4_eq {
- struct mlx4_dev *dev;
- void __iomem *doorbell;
- int eqn;
- u32 cons_index;
- u16 irq;
- u16 have_irq;
- int nent;
- struct mlx4_buf_list *page_list;
- struct mlx4_mtt mtt;
-};
-
-struct mlx4_profile {
- int num_qp;
- int rdmarc_per_qp;
- int num_srq;
- int num_cq;
- int num_mcg;
- int num_mpt;
- int num_mtt;
-};
-
-struct mlx4_fw {
- u64 clr_int_base;
- u64 catas_offset;
- struct mlx4_icm *fw_icm;
- struct mlx4_icm *aux_icm;
- u32 catas_size;
- u16 fw_pages;
- u8 clr_int_bar;
- u8 catas_bar;
-};
-
-#define MGM_QPN_MASK 0x00FFFFFF
-#define MGM_BLCK_LB_BIT 30
-
-struct mlx4_promisc_qp {
- struct list_head list;
- u32 qpn;
-};
-
-struct mlx4_steer_index {
- struct list_head list;
- unsigned int index;
- struct list_head duplicates;
-};
-
-struct mlx4_mgm {
- __be32 next_gid_index;
- __be32 members_count;
- u32 reserved[2];
- u8 gid[16];
- __be32 qp[MLX4_QP_PER_MGM];
-};
-struct mlx4_cmd {
- struct pci_pool *pool;
- void __iomem *hcr;
- struct mutex hcr_mutex;
- struct semaphore poll_sem;
- struct semaphore event_sem;
- int max_cmds;
- spinlock_t context_lock;
- int free_head;
- struct mlx4_cmd_context *context;
- u16 token_mask;
- u8 use_events;
- u8 toggle;
-};
-
-struct mlx4_uar_table {
- struct mlx4_bitmap bitmap;
-};
-
-struct mlx4_mr_table {
- struct mlx4_bitmap mpt_bitmap;
- struct mlx4_buddy mtt_buddy;
- u64 mtt_base;
- u64 mpt_base;
- struct mlx4_icm_table mtt_table;
- struct mlx4_icm_table dmpt_table;
-};
-
-struct mlx4_cq_table {
- struct mlx4_bitmap bitmap;
- spinlock_t lock;
- struct radix_tree_root tree;
- struct mlx4_icm_table table;
- struct mlx4_icm_table cmpt_table;
-};
-
-struct mlx4_eq_table {
- struct mlx4_bitmap bitmap;
- char *irq_names;
- void __iomem *clr_int;
- void __iomem **uar_map;
- u32 clr_mask;
- struct mlx4_eq *eq;
- struct mlx4_icm_table table;
- struct mlx4_icm_table cmpt_table;
- int have_irq;
- u8 inta_pin;
-};
-
-struct mlx4_srq_table {
- struct mlx4_bitmap bitmap;
- spinlock_t lock;
- struct radix_tree_root tree;
- struct mlx4_icm_table table;
- struct mlx4_icm_table cmpt_table;
-};
-
-struct mlx4_qp_table {
- struct mlx4_bitmap bitmap;
- u32 rdmarc_base;
- int rdmarc_shift;
- spinlock_t lock;
- struct mlx4_icm_table qp_table;
- struct mlx4_icm_table auxc_table;
- struct mlx4_icm_table altc_table;
- struct mlx4_icm_table rdmarc_table;
- struct mlx4_icm_table cmpt_table;
-};
-
-struct mlx4_mcg_table {
- struct mutex mutex;
- struct mlx4_bitmap bitmap;
- struct mlx4_icm_table table;
-};
-
-struct mlx4_catas_err {
- u32 __iomem *map;
- struct timer_list timer;
- struct list_head list;
-};
-
-#define MLX4_MAX_MAC_NUM 128
-#define MLX4_MAC_TABLE_SIZE (MLX4_MAX_MAC_NUM << 3)
-
-struct mlx4_mac_table {
- __be64 entries[MLX4_MAX_MAC_NUM];
- int refs[MLX4_MAX_MAC_NUM];
- struct mutex mutex;
- int total;
- int max;
-};
-
-#define MLX4_MAX_VLAN_NUM 128
-#define MLX4_VLAN_TABLE_SIZE (MLX4_MAX_VLAN_NUM << 2)
-
-struct mlx4_vlan_table {
- __be32 entries[MLX4_MAX_VLAN_NUM];
- int refs[MLX4_MAX_VLAN_NUM];
- struct mutex mutex;
- int total;
- int max;
-};
-
-struct mlx4_mac_entry {
- u64 mac;
-};
-
-struct mlx4_port_info {
- struct mlx4_dev *dev;
- int port;
- char dev_name[16];
- struct device_attribute port_attr;
- enum mlx4_port_type tmp_type;
- struct mlx4_mac_table mac_table;
- struct radix_tree_root mac_tree;
- struct mlx4_vlan_table vlan_table;
- int base_qpn;
-};
-
-struct mlx4_sense {
- struct mlx4_dev *dev;
- u8 do_sense_port[MLX4_MAX_PORTS + 1];
- u8 sense_allowed[MLX4_MAX_PORTS + 1];
- struct delayed_work sense_poll;
-};
-
-struct mlx4_msix_ctl {
- u64 pool_bm;
- spinlock_t pool_lock;
-};
-
-struct mlx4_steer {
- struct list_head promisc_qps[MLX4_NUM_STEERS];
- struct list_head steer_entries[MLX4_NUM_STEERS];
- struct list_head high_prios;
-};
-
-struct mlx4_priv {
- struct mlx4_dev dev;
-
- struct list_head dev_list;
- struct list_head ctx_list;
- spinlock_t ctx_lock;
-
- struct list_head pgdir_list;
- struct mutex pgdir_mutex;
-
- struct mlx4_fw fw;
- struct mlx4_cmd cmd;
-
- struct mlx4_bitmap pd_bitmap;
- struct mlx4_uar_table uar_table;
- struct mlx4_mr_table mr_table;
- struct mlx4_cq_table cq_table;
- struct mlx4_eq_table eq_table;
- struct mlx4_srq_table srq_table;
- struct mlx4_qp_table qp_table;
- struct mlx4_mcg_table mcg_table;
- struct mlx4_bitmap counters_bitmap;
-
- struct mlx4_catas_err catas_err;
-
- void __iomem *clr_base;
-
- struct mlx4_uar driver_uar;
- void __iomem *kar;
- struct mlx4_port_info port[MLX4_MAX_PORTS + 1];
- struct mlx4_sense sense;
- struct mutex port_mutex;
- struct mlx4_msix_ctl msix_ctl;
- struct mlx4_steer *steer;
- struct list_head bf_list;
- struct mutex bf_mutex;
- struct io_mapping *bf_mapping;
-};
-
-static inline struct mlx4_priv *mlx4_priv(struct mlx4_dev *dev)
-{
- return container_of(dev, struct mlx4_priv, dev);
-}
-
-#define MLX4_SENSE_RANGE (HZ * 3)
-
-extern struct workqueue_struct *mlx4_wq;
-
-u32 mlx4_bitmap_alloc(struct mlx4_bitmap *bitmap);
-void mlx4_bitmap_free(struct mlx4_bitmap *bitmap, u32 obj);
-u32 mlx4_bitmap_alloc_range(struct mlx4_bitmap *bitmap, int cnt, int align);
-void mlx4_bitmap_free_range(struct mlx4_bitmap *bitmap, u32 obj, int cnt);
-u32 mlx4_bitmap_avail(struct mlx4_bitmap *bitmap);
-int mlx4_bitmap_init(struct mlx4_bitmap *bitmap, u32 num, u32 mask,
- u32 reserved_bot, u32 resetrved_top);
-void mlx4_bitmap_cleanup(struct mlx4_bitmap *bitmap);
-
-int mlx4_reset(struct mlx4_dev *dev);
-
-int mlx4_alloc_eq_table(struct mlx4_dev *dev);
-void mlx4_free_eq_table(struct mlx4_dev *dev);
-
-int mlx4_init_pd_table(struct mlx4_dev *dev);
-int mlx4_init_uar_table(struct mlx4_dev *dev);
-int mlx4_init_mr_table(struct mlx4_dev *dev);
-int mlx4_init_eq_table(struct mlx4_dev *dev);
-int mlx4_init_cq_table(struct mlx4_dev *dev);
-int mlx4_init_qp_table(struct mlx4_dev *dev);
-int mlx4_init_srq_table(struct mlx4_dev *dev);
-int mlx4_init_mcg_table(struct mlx4_dev *dev);
-
-void mlx4_cleanup_pd_table(struct mlx4_dev *dev);
-void mlx4_cleanup_uar_table(struct mlx4_dev *dev);
-void mlx4_cleanup_mr_table(struct mlx4_dev *dev);
-void mlx4_cleanup_eq_table(struct mlx4_dev *dev);
-void mlx4_cleanup_cq_table(struct mlx4_dev *dev);
-void mlx4_cleanup_qp_table(struct mlx4_dev *dev);
-void mlx4_cleanup_srq_table(struct mlx4_dev *dev);
-void mlx4_cleanup_mcg_table(struct mlx4_dev *dev);
-
-void mlx4_start_catas_poll(struct mlx4_dev *dev);
-void mlx4_stop_catas_poll(struct mlx4_dev *dev);
-void mlx4_catas_init(void);
-int mlx4_restart_one(struct pci_dev *pdev);
-int mlx4_register_device(struct mlx4_dev *dev);
-void mlx4_unregister_device(struct mlx4_dev *dev);
-void mlx4_dispatch_event(struct mlx4_dev *dev, enum mlx4_dev_event type, int port);
-
-struct mlx4_dev_cap;
-struct mlx4_init_hca_param;
-
-u64 mlx4_make_profile(struct mlx4_dev *dev,
- struct mlx4_profile *request,
- struct mlx4_dev_cap *dev_cap,
- struct mlx4_init_hca_param *init_hca);
-
-int mlx4_cmd_init(struct mlx4_dev *dev);
-void mlx4_cmd_cleanup(struct mlx4_dev *dev);
-void mlx4_cmd_event(struct mlx4_dev *dev, u16 token, u8 status, u64 out_param);
-int mlx4_cmd_use_events(struct mlx4_dev *dev);
-void mlx4_cmd_use_polling(struct mlx4_dev *dev);
-
-void mlx4_cq_completion(struct mlx4_dev *dev, u32 cqn);
-void mlx4_cq_event(struct mlx4_dev *dev, u32 cqn, int event_type);
-
-void mlx4_qp_event(struct mlx4_dev *dev, u32 qpn, int event_type);
-
-void mlx4_srq_event(struct mlx4_dev *dev, u32 srqn, int event_type);
-
-void mlx4_handle_catas_err(struct mlx4_dev *dev);
-
-int mlx4_SENSE_PORT(struct mlx4_dev *dev, int port,
- enum mlx4_port_type *type);
-void mlx4_do_sense_ports(struct mlx4_dev *dev,
- enum mlx4_port_type *stype,
- enum mlx4_port_type *defaults);
-void mlx4_start_sense(struct mlx4_dev *dev);
-void mlx4_stop_sense(struct mlx4_dev *dev);
-void mlx4_sense_init(struct mlx4_dev *dev);
-int mlx4_check_port_params(struct mlx4_dev *dev,
- enum mlx4_port_type *port_type);
-int mlx4_change_port_types(struct mlx4_dev *dev,
- enum mlx4_port_type *port_types);
-
-void mlx4_init_mac_table(struct mlx4_dev *dev, struct mlx4_mac_table *table);
-void mlx4_init_vlan_table(struct mlx4_dev *dev, struct mlx4_vlan_table *table);
-
-int mlx4_SET_PORT(struct mlx4_dev *dev, u8 port);
-int mlx4_get_port_ib_caps(struct mlx4_dev *dev, u8 port, __be32 *caps);
-
-int mlx4_qp_detach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
- enum mlx4_protocol prot, enum mlx4_steer_type steer);
-int mlx4_qp_attach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
- int block_mcast_loopback, enum mlx4_protocol prot,
- enum mlx4_steer_type steer);
-#endif /* MLX4_H */
+++ /dev/null
-/*
- * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- *
- */
-
-#ifndef _MLX4_EN_H_
-#define _MLX4_EN_H_
-
-#include <linux/bitops.h>
-#include <linux/compiler.h>
-#include <linux/list.h>
-#include <linux/mutex.h>
-#include <linux/netdevice.h>
-#include <linux/if_vlan.h>
-
-#include <linux/mlx4/device.h>
-#include <linux/mlx4/qp.h>
-#include <linux/mlx4/cq.h>
-#include <linux/mlx4/srq.h>
-#include <linux/mlx4/doorbell.h>
-#include <linux/mlx4/cmd.h>
-
-#include "en_port.h"
-
-#define DRV_NAME "mlx4_en"
-#define DRV_VERSION "1.5.4.1"
-#define DRV_RELDATE "March 2011"
-
-#define MLX4_EN_MSG_LEVEL (NETIF_MSG_LINK | NETIF_MSG_IFDOWN)
-
-/*
- * Device constants
- */
-
-
-#define MLX4_EN_PAGE_SHIFT 12
-#define MLX4_EN_PAGE_SIZE (1 << MLX4_EN_PAGE_SHIFT)
-#define MAX_RX_RINGS 16
-#define MIN_RX_RINGS 4
-#define TXBB_SIZE 64
-#define HEADROOM (2048 / TXBB_SIZE + 1)
-#define STAMP_STRIDE 64
-#define STAMP_DWORDS (STAMP_STRIDE / 4)
-#define STAMP_SHIFT 31
-#define STAMP_VAL 0x7fffffff
-#define STATS_DELAY (HZ / 4)
-
-/* Typical TSO descriptor with 16 gather entries is 352 bytes... */
-#define MAX_DESC_SIZE 512
-#define MAX_DESC_TXBBS (MAX_DESC_SIZE / TXBB_SIZE)
-
-/*
- * OS related constants and tunables
- */
-
-#define MLX4_EN_WATCHDOG_TIMEOUT (15 * HZ)
-
-#define MLX4_EN_ALLOC_ORDER 2
-#define MLX4_EN_ALLOC_SIZE (PAGE_SIZE << MLX4_EN_ALLOC_ORDER)
-
-#define MLX4_EN_MAX_LRO_DESCRIPTORS 32
-
-/* Receive fragment sizes; we use at most 4 fragments (for 9600 byte MTU
- * and 4K allocations) */
-enum {
- FRAG_SZ0 = 512 - NET_IP_ALIGN,
- FRAG_SZ1 = 1024,
- FRAG_SZ2 = 4096,
- FRAG_SZ3 = MLX4_EN_ALLOC_SIZE
-};
-#define MLX4_EN_MAX_RX_FRAGS 4
-
-/* Maximum ring sizes */
-#define MLX4_EN_MAX_TX_SIZE 8192
-#define MLX4_EN_MAX_RX_SIZE 8192
-
-/* Minimum ring size for our page-allocation sceme to work */
-#define MLX4_EN_MIN_RX_SIZE (MLX4_EN_ALLOC_SIZE / SMP_CACHE_BYTES)
-#define MLX4_EN_MIN_TX_SIZE (4096 / TXBB_SIZE)
-
-#define MLX4_EN_SMALL_PKT_SIZE 64
-#define MLX4_EN_NUM_TX_RINGS 8
-#define MLX4_EN_NUM_PPP_RINGS 8
-#define MAX_TX_RINGS (MLX4_EN_NUM_TX_RINGS + MLX4_EN_NUM_PPP_RINGS)
-#define MLX4_EN_DEF_TX_RING_SIZE 512
-#define MLX4_EN_DEF_RX_RING_SIZE 1024
-
-/* Target number of packets to coalesce with interrupt moderation */
-#define MLX4_EN_RX_COAL_TARGET 44
-#define MLX4_EN_RX_COAL_TIME 0x10
-
-#define MLX4_EN_TX_COAL_PKTS 5
-#define MLX4_EN_TX_COAL_TIME 0x80
-
-#define MLX4_EN_RX_RATE_LOW 400000
-#define MLX4_EN_RX_COAL_TIME_LOW 0
-#define MLX4_EN_RX_RATE_HIGH 450000
-#define MLX4_EN_RX_COAL_TIME_HIGH 128
-#define MLX4_EN_RX_SIZE_THRESH 1024
-#define MLX4_EN_RX_RATE_THRESH (1000000 / MLX4_EN_RX_COAL_TIME_HIGH)
-#define MLX4_EN_SAMPLE_INTERVAL 0
-#define MLX4_EN_AVG_PKT_SMALL 256
-
-#define MLX4_EN_AUTO_CONF 0xffff
-
-#define MLX4_EN_DEF_RX_PAUSE 1
-#define MLX4_EN_DEF_TX_PAUSE 1
-
-/* Interval between successive polls in the Tx routine when polling is used
- instead of interrupts (in per-core Tx rings) - should be power of 2 */
-#define MLX4_EN_TX_POLL_MODER 16
-#define MLX4_EN_TX_POLL_TIMEOUT (HZ / 4)
-
-#define ETH_LLC_SNAP_SIZE 8
-
-#define SMALL_PACKET_SIZE (256 - NET_IP_ALIGN)
-#define HEADER_COPY_SIZE (128 - NET_IP_ALIGN)
-#define MLX4_LOOPBACK_TEST_PAYLOAD (HEADER_COPY_SIZE - ETH_HLEN)
-
-#define MLX4_EN_MIN_MTU 46
-#define ETH_BCAST 0xffffffffffffULL
-
-#define MLX4_EN_LOOPBACK_RETRIES 5
-#define MLX4_EN_LOOPBACK_TIMEOUT 100
-
-#ifdef MLX4_EN_PERF_STAT
-/* Number of samples to 'average' */
-#define AVG_SIZE 128
-#define AVG_FACTOR 1024
-#define NUM_PERF_STATS NUM_PERF_COUNTERS
-
-#define INC_PERF_COUNTER(cnt) (++(cnt))
-#define ADD_PERF_COUNTER(cnt, add) ((cnt) += (add))
-#define AVG_PERF_COUNTER(cnt, sample) \
- ((cnt) = ((cnt) * (AVG_SIZE - 1) + (sample) * AVG_FACTOR) / AVG_SIZE)
-#define GET_PERF_COUNTER(cnt) (cnt)
-#define GET_AVG_PERF_COUNTER(cnt) ((cnt) / AVG_FACTOR)
-
-#else
-
-#define NUM_PERF_STATS 0
-#define INC_PERF_COUNTER(cnt) do {} while (0)
-#define ADD_PERF_COUNTER(cnt, add) do {} while (0)
-#define AVG_PERF_COUNTER(cnt, sample) do {} while (0)
-#define GET_PERF_COUNTER(cnt) (0)
-#define GET_AVG_PERF_COUNTER(cnt) (0)
-#endif /* MLX4_EN_PERF_STAT */
-
-/*
- * Configurables
- */
-
-enum cq_type {
- RX = 0,
- TX = 1,
-};
-
-
-/*
- * Useful macros
- */
-#define ROUNDUP_LOG2(x) ilog2(roundup_pow_of_two(x))
-#define XNOR(x, y) (!(x) == !(y))
-#define ILLEGAL_MAC(addr) (addr == 0xffffffffffffULL || addr == 0x0)
-
-
-struct mlx4_en_tx_info {
- struct sk_buff *skb;
- u32 nr_txbb;
- u8 linear;
- u8 data_offset;
- u8 inl;
-};
-
-
-#define MLX4_EN_BIT_DESC_OWN 0x80000000
-#define CTRL_SIZE sizeof(struct mlx4_wqe_ctrl_seg)
-#define MLX4_EN_MEMTYPE_PAD 0x100
-#define DS_SIZE sizeof(struct mlx4_wqe_data_seg)
-
-
-struct mlx4_en_tx_desc {
- struct mlx4_wqe_ctrl_seg ctrl;
- union {
- struct mlx4_wqe_data_seg data; /* at least one data segment */
- struct mlx4_wqe_lso_seg lso;
- struct mlx4_wqe_inline_seg inl;
- };
-};
-
-#define MLX4_EN_USE_SRQ 0x01000000
-
-#define MLX4_EN_CX3_LOW_ID 0x1000
-#define MLX4_EN_CX3_HIGH_ID 0x1005
-
-struct mlx4_en_rx_alloc {
- struct page *page;
- u16 offset;
-};
-
-struct mlx4_en_tx_ring {
- struct mlx4_hwq_resources wqres;
- u32 size ; /* number of TXBBs */
- u32 size_mask;
- u16 stride;
- u16 cqn; /* index of port CQ associated with this ring */
- u32 prod;
- u32 cons;
- u32 buf_size;
- u32 doorbell_qpn;
- void *buf;
- u16 poll_cnt;
- int blocked;
- struct mlx4_en_tx_info *tx_info;
- u8 *bounce_buf;
- u32 last_nr_txbb;
- struct mlx4_qp qp;
- struct mlx4_qp_context context;
- int qpn;
- enum mlx4_qp_state qp_state;
- struct mlx4_srq dummy;
- unsigned long bytes;
- unsigned long packets;
- spinlock_t comp_lock;
- struct mlx4_bf bf;
- bool bf_enabled;
-};
-
-struct mlx4_en_rx_desc {
- /* actual number of entries depends on rx ring stride */
- struct mlx4_wqe_data_seg data[0];
-};
-
-struct mlx4_en_rx_ring {
- struct mlx4_hwq_resources wqres;
- struct mlx4_en_rx_alloc page_alloc[MLX4_EN_MAX_RX_FRAGS];
- u32 size ; /* number of Rx descs*/
- u32 actual_size;
- u32 size_mask;
- u16 stride;
- u16 log_stride;
- u16 cqn; /* index of port CQ associated with this ring */
- u32 prod;
- u32 cons;
- u32 buf_size;
- void *buf;
- void *rx_info;
- unsigned long bytes;
- unsigned long packets;
-};
-
-
-static inline int mlx4_en_can_lro(__be16 status)
-{
- return (status & cpu_to_be16(MLX4_CQE_STATUS_IPV4 |
- MLX4_CQE_STATUS_IPV4F |
- MLX4_CQE_STATUS_IPV6 |
- MLX4_CQE_STATUS_IPV4OPT |
- MLX4_CQE_STATUS_TCP |
- MLX4_CQE_STATUS_UDP |
- MLX4_CQE_STATUS_IPOK)) ==
- cpu_to_be16(MLX4_CQE_STATUS_IPV4 |
- MLX4_CQE_STATUS_IPOK |
- MLX4_CQE_STATUS_TCP);
-}
-
-struct mlx4_en_cq {
- struct mlx4_cq mcq;
- struct mlx4_hwq_resources wqres;
- int ring;
- spinlock_t lock;
- struct net_device *dev;
- struct napi_struct napi;
- /* Per-core Tx cq processing support */
- struct timer_list timer;
- int size;
- int buf_size;
- unsigned vector;
- enum cq_type is_tx;
- u16 moder_time;
- u16 moder_cnt;
- struct mlx4_cqe *buf;
-#define MLX4_EN_OPCODE_ERROR 0x1e
-};
-
-struct mlx4_en_port_profile {
- u32 flags;
- u32 tx_ring_num;
- u32 rx_ring_num;
- u32 tx_ring_size;
- u32 rx_ring_size;
- u8 rx_pause;
- u8 rx_ppp;
- u8 tx_pause;
- u8 tx_ppp;
-};
-
-struct mlx4_en_profile {
- int rss_xor;
- int tcp_rss;
- int udp_rss;
- u8 rss_mask;
- u32 active_ports;
- u32 small_pkt_int;
- u8 no_reset;
- struct mlx4_en_port_profile prof[MLX4_MAX_PORTS + 1];
-};
-
-struct mlx4_en_dev {
- struct mlx4_dev *dev;
- struct pci_dev *pdev;
- struct mutex state_lock;
- struct net_device *pndev[MLX4_MAX_PORTS + 1];
- u32 port_cnt;
- bool device_up;
- struct mlx4_en_profile profile;
- u32 LSO_support;
- struct workqueue_struct *workqueue;
- struct device *dma_device;
- void __iomem *uar_map;
- struct mlx4_uar priv_uar;
- struct mlx4_mr mr;
- u32 priv_pdn;
- spinlock_t uar_lock;
- u8 mac_removed[MLX4_MAX_PORTS + 1];
-};
-
-
-struct mlx4_en_rss_map {
- int base_qpn;
- struct mlx4_qp qps[MAX_RX_RINGS];
- enum mlx4_qp_state state[MAX_RX_RINGS];
- struct mlx4_qp indir_qp;
- enum mlx4_qp_state indir_state;
-};
-
-struct mlx4_en_rss_context {
- __be32 base_qpn;
- __be32 default_qpn;
- u16 reserved;
- u8 hash_fn;
- u8 flags;
- __be32 rss_key[10];
- __be32 base_qpn_udp;
-};
-
-struct mlx4_en_port_state {
- int link_state;
- int link_speed;
- int transciver;
-};
-
-struct mlx4_en_pkt_stats {
- unsigned long broadcast;
- unsigned long rx_prio[8];
- unsigned long tx_prio[8];
-#define NUM_PKT_STATS 17
-};
-
-struct mlx4_en_port_stats {
- unsigned long tso_packets;
- unsigned long queue_stopped;
- unsigned long wake_queue;
- unsigned long tx_timeout;
- unsigned long rx_alloc_failed;
- unsigned long rx_chksum_good;
- unsigned long rx_chksum_none;
- unsigned long tx_chksum_offload;
-#define NUM_PORT_STATS 8
-};
-
-struct mlx4_en_perf_stats {
- u32 tx_poll;
- u64 tx_pktsz_avg;
- u32 inflight_avg;
- u16 tx_coal_avg;
- u16 rx_coal_avg;
- u32 napi_quota;
-#define NUM_PERF_COUNTERS 6
-};
-
-struct mlx4_en_frag_info {
- u16 frag_size;
- u16 frag_prefix_size;
- u16 frag_stride;
- u16 frag_align;
- u16 last_offset;
-
-};
-
-struct mlx4_en_priv {
- struct mlx4_en_dev *mdev;
- struct mlx4_en_port_profile *prof;
- struct net_device *dev;
- unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
- struct net_device_stats stats;
- struct net_device_stats ret_stats;
- struct mlx4_en_port_state port_state;
- spinlock_t stats_lock;
-
- unsigned long last_moder_packets;
- unsigned long last_moder_tx_packets;
- unsigned long last_moder_bytes;
- unsigned long last_moder_jiffies;
- int last_moder_time;
- u16 rx_usecs;
- u16 rx_frames;
- u16 tx_usecs;
- u16 tx_frames;
- u32 pkt_rate_low;
- u16 rx_usecs_low;
- u32 pkt_rate_high;
- u16 rx_usecs_high;
- u16 sample_interval;
- u16 adaptive_rx_coal;
- u32 msg_enable;
- u32 loopback_ok;
- u32 validate_loopback;
-
- struct mlx4_hwq_resources res;
- int link_state;
- int last_link_state;
- bool port_up;
- int port;
- int registered;
- int allocated;
- int stride;
- u64 mac;
- int mac_index;
- unsigned max_mtu;
- int base_qpn;
-
- struct mlx4_en_rss_map rss_map;
- u32 flags;
-#define MLX4_EN_FLAG_PROMISC 0x1
-#define MLX4_EN_FLAG_MC_PROMISC 0x2
- u32 tx_ring_num;
- u32 rx_ring_num;
- u32 rx_skb_size;
- struct mlx4_en_frag_info frag_info[MLX4_EN_MAX_RX_FRAGS];
- u16 num_frags;
- u16 log_rx_info;
-
- struct mlx4_en_tx_ring tx_ring[MAX_TX_RINGS];
- int tx_vector;
- struct mlx4_en_rx_ring rx_ring[MAX_RX_RINGS];
- struct mlx4_en_cq tx_cq[MAX_TX_RINGS];
- struct mlx4_en_cq rx_cq[MAX_RX_RINGS];
- struct work_struct mcast_task;
- struct work_struct mac_task;
- struct work_struct watchdog_task;
- struct work_struct linkstate_task;
- struct delayed_work stats_task;
- struct mlx4_en_perf_stats pstats;
- struct mlx4_en_pkt_stats pkstats;
- struct mlx4_en_port_stats port_stats;
- char *mc_addrs;
- int mc_addrs_cnt;
- struct mlx4_en_stat_out_mbox hw_stats;
- int vids[128];
- bool wol;
-};
-
-enum mlx4_en_wol {
- MLX4_EN_WOL_MAGIC = (1ULL << 61),
- MLX4_EN_WOL_ENABLED = (1ULL << 62),
- MLX4_EN_WOL_DO_MODIFY = (1ULL << 63),
-};
-
-
-void mlx4_en_destroy_netdev(struct net_device *dev);
-int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
- struct mlx4_en_port_profile *prof);
-
-int mlx4_en_start_port(struct net_device *dev);
-void mlx4_en_stop_port(struct net_device *dev);
-
-void mlx4_en_free_resources(struct mlx4_en_priv *priv, bool reserve_vectors);
-int mlx4_en_alloc_resources(struct mlx4_en_priv *priv);
-
-int mlx4_en_create_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq,
- int entries, int ring, enum cq_type mode);
-void mlx4_en_destroy_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq,
- bool reserve_vectors);
-int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);
-void mlx4_en_deactivate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);
-int mlx4_en_set_cq_moder(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);
-int mlx4_en_arm_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);
-
-void mlx4_en_poll_tx_cq(unsigned long data);
-void mlx4_en_tx_irq(struct mlx4_cq *mcq);
-u16 mlx4_en_select_queue(struct net_device *dev, struct sk_buff *skb);
-netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev);
-
-int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv, struct mlx4_en_tx_ring *ring,
- int qpn, u32 size, u16 stride);
-void mlx4_en_destroy_tx_ring(struct mlx4_en_priv *priv, struct mlx4_en_tx_ring *ring);
-int mlx4_en_activate_tx_ring(struct mlx4_en_priv *priv,
- struct mlx4_en_tx_ring *ring,
- int cq);
-void mlx4_en_deactivate_tx_ring(struct mlx4_en_priv *priv,
- struct mlx4_en_tx_ring *ring);
-
-int mlx4_en_create_rx_ring(struct mlx4_en_priv *priv,
- struct mlx4_en_rx_ring *ring,
- u32 size, u16 stride);
-void mlx4_en_destroy_rx_ring(struct mlx4_en_priv *priv,
- struct mlx4_en_rx_ring *ring);
-int mlx4_en_activate_rx_rings(struct mlx4_en_priv *priv);
-void mlx4_en_deactivate_rx_ring(struct mlx4_en_priv *priv,
- struct mlx4_en_rx_ring *ring);
-int mlx4_en_process_rx_cq(struct net_device *dev,
- struct mlx4_en_cq *cq,
- int budget);
-int mlx4_en_poll_rx_cq(struct napi_struct *napi, int budget);
-void mlx4_en_fill_qp_context(struct mlx4_en_priv *priv, int size, int stride,
- int is_tx, int rss, int qpn, int cqn,
- struct mlx4_qp_context *context);
-void mlx4_en_sqp_event(struct mlx4_qp *qp, enum mlx4_event event);
-int mlx4_en_map_buffer(struct mlx4_buf *buf);
-void mlx4_en_unmap_buffer(struct mlx4_buf *buf);
-
-void mlx4_en_calc_rx_buf(struct net_device *dev);
-int mlx4_en_config_rss_steer(struct mlx4_en_priv *priv);
-void mlx4_en_release_rss_steer(struct mlx4_en_priv *priv);
-int mlx4_en_free_tx_buf(struct net_device *dev, struct mlx4_en_tx_ring *ring);
-void mlx4_en_rx_irq(struct mlx4_cq *mcq);
-
-int mlx4_SET_MCAST_FLTR(struct mlx4_dev *dev, u8 port, u64 mac, u64 clear, u8 mode);
-int mlx4_SET_VLAN_FLTR(struct mlx4_dev *dev, struct mlx4_en_priv *priv);
-int mlx4_SET_PORT_general(struct mlx4_dev *dev, u8 port, int mtu,
- u8 pptx, u8 pfctx, u8 pprx, u8 pfcrx);
-int mlx4_SET_PORT_qpn_calc(struct mlx4_dev *dev, u8 port, u32 base_qpn,
- u8 promisc);
-
-int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset);
-int mlx4_en_QUERY_PORT(struct mlx4_en_dev *mdev, u8 port);
-
-#define MLX4_EN_NUM_SELF_TEST 5
-void mlx4_en_ex_selftest(struct net_device *dev, u32 *flags, u64 *buf);
-u64 mlx4_en_mac_to_u64(u8 *addr);
-
-/*
- * Globals
- */
-extern const struct ethtool_ops mlx4_en_ethtool_ops;
-
-
-
-/*
- * printk / logging functions
- */
-
-int en_print(const char *level, const struct mlx4_en_priv *priv,
- const char *format, ...) __attribute__ ((format (printf, 3, 4)));
-
-#define en_dbg(mlevel, priv, format, arg...) \
-do { \
- if (NETIF_MSG_##mlevel & priv->msg_enable) \
- en_print(KERN_DEBUG, priv, format, ##arg); \
-} while (0)
-#define en_warn(priv, format, arg...) \
- en_print(KERN_WARNING, priv, format, ##arg)
-#define en_err(priv, format, arg...) \
- en_print(KERN_ERR, priv, format, ##arg)
-#define en_info(priv, format, arg...) \
- en_print(KERN_INFO, priv, format, ## arg)
-
-#define mlx4_err(mdev, format, arg...) \
- pr_err("%s %s: " format, DRV_NAME, \
- dev_name(&mdev->pdev->dev), ##arg)
-#define mlx4_info(mdev, format, arg...) \
- pr_info("%s %s: " format, DRV_NAME, \
- dev_name(&mdev->pdev->dev), ##arg)
-#define mlx4_warn(mdev, format, arg...) \
- pr_warning("%s %s: " format, DRV_NAME, \
- dev_name(&mdev->pdev->dev), ##arg)
-
-#endif
+++ /dev/null
-/*
- * Copyright (c) 2004 Topspin Communications. All rights reserved.
- * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
- * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include <linux/errno.h>
-#include <linux/slab.h>
-
-#include <linux/mlx4/cmd.h>
-
-#include "mlx4.h"
-#include "icm.h"
-
-/*
- * Must be packed because mtt_seg is 64 bits but only aligned to 32 bits.
- */
-struct mlx4_mpt_entry {
- __be32 flags;
- __be32 qpn;
- __be32 key;
- __be32 pd_flags;
- __be64 start;
- __be64 length;
- __be32 lkey;
- __be32 win_cnt;
- u8 reserved1[3];
- u8 mtt_rep;
- __be64 mtt_seg;
- __be32 mtt_sz;
- __be32 entity_size;
- __be32 first_byte_offset;
-} __packed;
-
-#define MLX4_MPT_FLAG_SW_OWNS (0xfUL << 28)
-#define MLX4_MPT_FLAG_FREE (0x3UL << 28)
-#define MLX4_MPT_FLAG_MIO (1 << 17)
-#define MLX4_MPT_FLAG_BIND_ENABLE (1 << 15)
-#define MLX4_MPT_FLAG_PHYSICAL (1 << 9)
-#define MLX4_MPT_FLAG_REGION (1 << 8)
-
-#define MLX4_MPT_PD_FLAG_FAST_REG (1 << 27)
-#define MLX4_MPT_PD_FLAG_RAE (1 << 28)
-#define MLX4_MPT_PD_FLAG_EN_INV (3 << 24)
-
-#define MLX4_MPT_STATUS_SW 0xF0
-#define MLX4_MPT_STATUS_HW 0x00
-
-static u32 mlx4_buddy_alloc(struct mlx4_buddy *buddy, int order)
-{
- int o;
- int m;
- u32 seg;
-
- spin_lock(&buddy->lock);
-
- for (o = order; o <= buddy->max_order; ++o)
- if (buddy->num_free[o]) {
- m = 1 << (buddy->max_order - o);
- seg = find_first_bit(buddy->bits[o], m);
- if (seg < m)
- goto found;
- }
-
- spin_unlock(&buddy->lock);
- return -1;
-
- found:
- clear_bit(seg, buddy->bits[o]);
- --buddy->num_free[o];
-
- while (o > order) {
- --o;
- seg <<= 1;
- set_bit(seg ^ 1, buddy->bits[o]);
- ++buddy->num_free[o];
- }
-
- spin_unlock(&buddy->lock);
-
- seg <<= order;
-
- return seg;
-}
-
-static void mlx4_buddy_free(struct mlx4_buddy *buddy, u32 seg, int order)
-{
- seg >>= order;
-
- spin_lock(&buddy->lock);
-
- while (test_bit(seg ^ 1, buddy->bits[order])) {
- clear_bit(seg ^ 1, buddy->bits[order]);
- --buddy->num_free[order];
- seg >>= 1;
- ++order;
- }
-
- set_bit(seg, buddy->bits[order]);
- ++buddy->num_free[order];
-
- spin_unlock(&buddy->lock);
-}
-
-static int mlx4_buddy_init(struct mlx4_buddy *buddy, int max_order)
-{
- int i, s;
-
- buddy->max_order = max_order;
- spin_lock_init(&buddy->lock);
-
- buddy->bits = kzalloc((buddy->max_order + 1) * sizeof (long *),
- GFP_KERNEL);
- buddy->num_free = kzalloc((buddy->max_order + 1) * sizeof (int *),
- GFP_KERNEL);
- if (!buddy->bits || !buddy->num_free)
- goto err_out;
-
- for (i = 0; i <= buddy->max_order; ++i) {
- s = BITS_TO_LONGS(1 << (buddy->max_order - i));
- buddy->bits[i] = kmalloc(s * sizeof (long), GFP_KERNEL);
- if (!buddy->bits[i])
- goto err_out_free;
- bitmap_zero(buddy->bits[i], 1 << (buddy->max_order - i));
- }
-
- set_bit(0, buddy->bits[buddy->max_order]);
- buddy->num_free[buddy->max_order] = 1;
-
- return 0;
-
-err_out_free:
- for (i = 0; i <= buddy->max_order; ++i)
- kfree(buddy->bits[i]);
-
-err_out:
- kfree(buddy->bits);
- kfree(buddy->num_free);
-
- return -ENOMEM;
-}
-
-static void mlx4_buddy_cleanup(struct mlx4_buddy *buddy)
-{
- int i;
-
- for (i = 0; i <= buddy->max_order; ++i)
- kfree(buddy->bits[i]);
-
- kfree(buddy->bits);
- kfree(buddy->num_free);
-}
-
-static u32 mlx4_alloc_mtt_range(struct mlx4_dev *dev, int order)
-{
- struct mlx4_mr_table *mr_table = &mlx4_priv(dev)->mr_table;
- u32 seg;
-
- seg = mlx4_buddy_alloc(&mr_table->mtt_buddy, order);
- if (seg == -1)
- return -1;
-
- if (mlx4_table_get_range(dev, &mr_table->mtt_table, seg,
- seg + (1 << order) - 1)) {
- mlx4_buddy_free(&mr_table->mtt_buddy, seg, order);
- return -1;
- }
-
- return seg;
-}
-
-int mlx4_mtt_init(struct mlx4_dev *dev, int npages, int page_shift,
- struct mlx4_mtt *mtt)
-{
- int i;
-
- if (!npages) {
- mtt->order = -1;
- mtt->page_shift = MLX4_ICM_PAGE_SHIFT;
- return 0;
- } else
- mtt->page_shift = page_shift;
-
- for (mtt->order = 0, i = dev->caps.mtts_per_seg; i < npages; i <<= 1)
- ++mtt->order;
-
- mtt->first_seg = mlx4_alloc_mtt_range(dev, mtt->order);
- if (mtt->first_seg == -1)
- return -ENOMEM;
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(mlx4_mtt_init);
-
-void mlx4_mtt_cleanup(struct mlx4_dev *dev, struct mlx4_mtt *mtt)
-{
- struct mlx4_mr_table *mr_table = &mlx4_priv(dev)->mr_table;
-
- if (mtt->order < 0)
- return;
-
- mlx4_buddy_free(&mr_table->mtt_buddy, mtt->first_seg, mtt->order);
- mlx4_table_put_range(dev, &mr_table->mtt_table, mtt->first_seg,
- mtt->first_seg + (1 << mtt->order) - 1);
-}
-EXPORT_SYMBOL_GPL(mlx4_mtt_cleanup);
-
-u64 mlx4_mtt_addr(struct mlx4_dev *dev, struct mlx4_mtt *mtt)
-{
- return (u64) mtt->first_seg * dev->caps.mtt_entry_sz;
-}
-EXPORT_SYMBOL_GPL(mlx4_mtt_addr);
-
-static u32 hw_index_to_key(u32 ind)
-{
- return (ind >> 24) | (ind << 8);
-}
-
-static u32 key_to_hw_index(u32 key)
-{
- return (key << 24) | (key >> 8);
-}
-
-static int mlx4_SW2HW_MPT(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
- int mpt_index)
-{
- return mlx4_cmd(dev, mailbox->dma, mpt_index, 0, MLX4_CMD_SW2HW_MPT,
- MLX4_CMD_TIME_CLASS_B);
-}
-
-static int mlx4_HW2SW_MPT(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
- int mpt_index)
-{
- return mlx4_cmd_box(dev, 0, mailbox ? mailbox->dma : 0, mpt_index,
- !mailbox, MLX4_CMD_HW2SW_MPT, MLX4_CMD_TIME_CLASS_B);
-}
-
-int mlx4_mr_alloc(struct mlx4_dev *dev, u32 pd, u64 iova, u64 size, u32 access,
- int npages, int page_shift, struct mlx4_mr *mr)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- u32 index;
- int err;
-
- index = mlx4_bitmap_alloc(&priv->mr_table.mpt_bitmap);
- if (index == -1)
- return -ENOMEM;
-
- mr->iova = iova;
- mr->size = size;
- mr->pd = pd;
- mr->access = access;
- mr->enabled = 0;
- mr->key = hw_index_to_key(index);
-
- err = mlx4_mtt_init(dev, npages, page_shift, &mr->mtt);
- if (err)
- mlx4_bitmap_free(&priv->mr_table.mpt_bitmap, index);
-
- return err;
-}
-EXPORT_SYMBOL_GPL(mlx4_mr_alloc);
-
-void mlx4_mr_free(struct mlx4_dev *dev, struct mlx4_mr *mr)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- int err;
-
- if (mr->enabled) {
- err = mlx4_HW2SW_MPT(dev, NULL,
- key_to_hw_index(mr->key) &
- (dev->caps.num_mpts - 1));
- if (err)
- mlx4_warn(dev, "HW2SW_MPT failed (%d)\n", err);
- }
-
- mlx4_mtt_cleanup(dev, &mr->mtt);
- mlx4_bitmap_free(&priv->mr_table.mpt_bitmap, key_to_hw_index(mr->key));
-}
-EXPORT_SYMBOL_GPL(mlx4_mr_free);
-
-int mlx4_mr_enable(struct mlx4_dev *dev, struct mlx4_mr *mr)
-{
- struct mlx4_mr_table *mr_table = &mlx4_priv(dev)->mr_table;
- struct mlx4_cmd_mailbox *mailbox;
- struct mlx4_mpt_entry *mpt_entry;
- int err;
-
- err = mlx4_table_get(dev, &mr_table->dmpt_table, key_to_hw_index(mr->key));
- if (err)
- return err;
-
- mailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(mailbox)) {
- err = PTR_ERR(mailbox);
- goto err_table;
- }
- mpt_entry = mailbox->buf;
-
- memset(mpt_entry, 0, sizeof *mpt_entry);
-
- mpt_entry->flags = cpu_to_be32(MLX4_MPT_FLAG_MIO |
- MLX4_MPT_FLAG_REGION |
- mr->access);
-
- mpt_entry->key = cpu_to_be32(key_to_hw_index(mr->key));
- mpt_entry->pd_flags = cpu_to_be32(mr->pd | MLX4_MPT_PD_FLAG_EN_INV);
- mpt_entry->start = cpu_to_be64(mr->iova);
- mpt_entry->length = cpu_to_be64(mr->size);
- mpt_entry->entity_size = cpu_to_be32(mr->mtt.page_shift);
-
- if (mr->mtt.order < 0) {
- mpt_entry->flags |= cpu_to_be32(MLX4_MPT_FLAG_PHYSICAL);
- mpt_entry->mtt_seg = 0;
- } else {
- mpt_entry->mtt_seg = cpu_to_be64(mlx4_mtt_addr(dev, &mr->mtt));
- }
-
- if (mr->mtt.order >= 0 && mr->mtt.page_shift == 0) {
- /* fast register MR in free state */
- mpt_entry->flags |= cpu_to_be32(MLX4_MPT_FLAG_FREE);
- mpt_entry->pd_flags |= cpu_to_be32(MLX4_MPT_PD_FLAG_FAST_REG |
- MLX4_MPT_PD_FLAG_RAE);
- mpt_entry->mtt_sz = cpu_to_be32((1 << mr->mtt.order) *
- dev->caps.mtts_per_seg);
- } else {
- mpt_entry->flags |= cpu_to_be32(MLX4_MPT_FLAG_SW_OWNS);
- }
-
- err = mlx4_SW2HW_MPT(dev, mailbox,
- key_to_hw_index(mr->key) & (dev->caps.num_mpts - 1));
- if (err) {
- mlx4_warn(dev, "SW2HW_MPT failed (%d)\n", err);
- goto err_cmd;
- }
-
- mr->enabled = 1;
-
- mlx4_free_cmd_mailbox(dev, mailbox);
-
- return 0;
-
-err_cmd:
- mlx4_free_cmd_mailbox(dev, mailbox);
-
-err_table:
- mlx4_table_put(dev, &mr_table->dmpt_table, key_to_hw_index(mr->key));
- return err;
-}
-EXPORT_SYMBOL_GPL(mlx4_mr_enable);
-
-static int mlx4_write_mtt_chunk(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
- int start_index, int npages, u64 *page_list)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- __be64 *mtts;
- dma_addr_t dma_handle;
- int i;
- int s = start_index * sizeof (u64);
-
- /* All MTTs must fit in the same page */
- if (start_index / (PAGE_SIZE / sizeof (u64)) !=
- (start_index + npages - 1) / (PAGE_SIZE / sizeof (u64)))
- return -EINVAL;
-
- if (start_index & (dev->caps.mtts_per_seg - 1))
- return -EINVAL;
-
- mtts = mlx4_table_find(&priv->mr_table.mtt_table, mtt->first_seg +
- s / dev->caps.mtt_entry_sz, &dma_handle);
- if (!mtts)
- return -ENOMEM;
-
- dma_sync_single_for_cpu(&dev->pdev->dev, dma_handle,
- npages * sizeof (u64), DMA_TO_DEVICE);
-
- for (i = 0; i < npages; ++i)
- mtts[i] = cpu_to_be64(page_list[i] | MLX4_MTT_FLAG_PRESENT);
-
- dma_sync_single_for_device(&dev->pdev->dev, dma_handle,
- npages * sizeof (u64), DMA_TO_DEVICE);
-
- return 0;
-}
-
-int mlx4_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
- int start_index, int npages, u64 *page_list)
-{
- int chunk;
- int err;
-
- if (mtt->order < 0)
- return -EINVAL;
-
- while (npages > 0) {
- chunk = min_t(int, PAGE_SIZE / sizeof(u64), npages);
- err = mlx4_write_mtt_chunk(dev, mtt, start_index, chunk, page_list);
- if (err)
- return err;
-
- npages -= chunk;
- start_index += chunk;
- page_list += chunk;
- }
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(mlx4_write_mtt);
-
-int mlx4_buf_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
- struct mlx4_buf *buf)
-{
- u64 *page_list;
- int err;
- int i;
-
- page_list = kmalloc(buf->npages * sizeof *page_list, GFP_KERNEL);
- if (!page_list)
- return -ENOMEM;
-
- for (i = 0; i < buf->npages; ++i)
- if (buf->nbufs == 1)
- page_list[i] = buf->direct.map + (i << buf->page_shift);
- else
- page_list[i] = buf->page_list[i].map;
-
- err = mlx4_write_mtt(dev, mtt, 0, buf->npages, page_list);
-
- kfree(page_list);
- return err;
-}
-EXPORT_SYMBOL_GPL(mlx4_buf_write_mtt);
-
-int mlx4_init_mr_table(struct mlx4_dev *dev)
-{
- struct mlx4_mr_table *mr_table = &mlx4_priv(dev)->mr_table;
- int err;
-
- err = mlx4_bitmap_init(&mr_table->mpt_bitmap, dev->caps.num_mpts,
- ~0, dev->caps.reserved_mrws, 0);
- if (err)
- return err;
-
- err = mlx4_buddy_init(&mr_table->mtt_buddy,
- ilog2(dev->caps.num_mtt_segs));
- if (err)
- goto err_buddy;
-
- if (dev->caps.reserved_mtts) {
- if (mlx4_alloc_mtt_range(dev, fls(dev->caps.reserved_mtts - 1)) == -1) {
- mlx4_warn(dev, "MTT table of order %d is too small.\n",
- mr_table->mtt_buddy.max_order);
- err = -ENOMEM;
- goto err_reserve_mtts;
- }
- }
-
- return 0;
-
-err_reserve_mtts:
- mlx4_buddy_cleanup(&mr_table->mtt_buddy);
-
-err_buddy:
- mlx4_bitmap_cleanup(&mr_table->mpt_bitmap);
-
- return err;
-}
-
-void mlx4_cleanup_mr_table(struct mlx4_dev *dev)
-{
- struct mlx4_mr_table *mr_table = &mlx4_priv(dev)->mr_table;
-
- mlx4_buddy_cleanup(&mr_table->mtt_buddy);
- mlx4_bitmap_cleanup(&mr_table->mpt_bitmap);
-}
-
-static inline int mlx4_check_fmr(struct mlx4_fmr *fmr, u64 *page_list,
- int npages, u64 iova)
-{
- int i, page_mask;
-
- if (npages > fmr->max_pages)
- return -EINVAL;
-
- page_mask = (1 << fmr->page_shift) - 1;
-
- /* We are getting page lists, so va must be page aligned. */
- if (iova & page_mask)
- return -EINVAL;
-
- /* Trust the user not to pass misaligned data in page_list */
- if (0)
- for (i = 0; i < npages; ++i) {
- if (page_list[i] & ~page_mask)
- return -EINVAL;
- }
-
- if (fmr->maps >= fmr->max_maps)
- return -EINVAL;
-
- return 0;
-}
-
-int mlx4_map_phys_fmr(struct mlx4_dev *dev, struct mlx4_fmr *fmr, u64 *page_list,
- int npages, u64 iova, u32 *lkey, u32 *rkey)
-{
- u32 key;
- int i, err;
-
- err = mlx4_check_fmr(fmr, page_list, npages, iova);
- if (err)
- return err;
-
- ++fmr->maps;
-
- key = key_to_hw_index(fmr->mr.key);
- key += dev->caps.num_mpts;
- *lkey = *rkey = fmr->mr.key = hw_index_to_key(key);
-
- *(u8 *) fmr->mpt = MLX4_MPT_STATUS_SW;
-
- /* Make sure MPT status is visible before writing MTT entries */
- wmb();
-
- dma_sync_single_for_cpu(&dev->pdev->dev, fmr->dma_handle,
- npages * sizeof(u64), DMA_TO_DEVICE);
-
- for (i = 0; i < npages; ++i)
- fmr->mtts[i] = cpu_to_be64(page_list[i] | MLX4_MTT_FLAG_PRESENT);
-
- dma_sync_single_for_device(&dev->pdev->dev, fmr->dma_handle,
- npages * sizeof(u64), DMA_TO_DEVICE);
-
- fmr->mpt->key = cpu_to_be32(key);
- fmr->mpt->lkey = cpu_to_be32(key);
- fmr->mpt->length = cpu_to_be64(npages * (1ull << fmr->page_shift));
- fmr->mpt->start = cpu_to_be64(iova);
-
- /* Make MTT entries are visible before setting MPT status */
- wmb();
-
- *(u8 *) fmr->mpt = MLX4_MPT_STATUS_HW;
-
- /* Make sure MPT status is visible before consumer can use FMR */
- wmb();
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(mlx4_map_phys_fmr);
-
-int mlx4_fmr_alloc(struct mlx4_dev *dev, u32 pd, u32 access, int max_pages,
- int max_maps, u8 page_shift, struct mlx4_fmr *fmr)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- u64 mtt_seg;
- int err = -ENOMEM;
-
- if (page_shift < (ffs(dev->caps.page_size_cap) - 1) || page_shift >= 32)
- return -EINVAL;
-
- /* All MTTs must fit in the same page */
- if (max_pages * sizeof *fmr->mtts > PAGE_SIZE)
- return -EINVAL;
-
- fmr->page_shift = page_shift;
- fmr->max_pages = max_pages;
- fmr->max_maps = max_maps;
- fmr->maps = 0;
-
- err = mlx4_mr_alloc(dev, pd, 0, 0, access, max_pages,
- page_shift, &fmr->mr);
- if (err)
- return err;
-
- mtt_seg = fmr->mr.mtt.first_seg * dev->caps.mtt_entry_sz;
-
- fmr->mtts = mlx4_table_find(&priv->mr_table.mtt_table,
- fmr->mr.mtt.first_seg,
- &fmr->dma_handle);
- if (!fmr->mtts) {
- err = -ENOMEM;
- goto err_free;
- }
-
- return 0;
-
-err_free:
- mlx4_mr_free(dev, &fmr->mr);
- return err;
-}
-EXPORT_SYMBOL_GPL(mlx4_fmr_alloc);
-
-int mlx4_fmr_enable(struct mlx4_dev *dev, struct mlx4_fmr *fmr)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- int err;
-
- err = mlx4_mr_enable(dev, &fmr->mr);
- if (err)
- return err;
-
- fmr->mpt = mlx4_table_find(&priv->mr_table.dmpt_table,
- key_to_hw_index(fmr->mr.key), NULL);
- if (!fmr->mpt)
- return -ENOMEM;
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(mlx4_fmr_enable);
-
-void mlx4_fmr_unmap(struct mlx4_dev *dev, struct mlx4_fmr *fmr,
- u32 *lkey, u32 *rkey)
-{
- if (!fmr->maps)
- return;
-
- fmr->maps = 0;
-
- *(u8 *) fmr->mpt = MLX4_MPT_STATUS_SW;
-}
-EXPORT_SYMBOL_GPL(mlx4_fmr_unmap);
-
-int mlx4_fmr_free(struct mlx4_dev *dev, struct mlx4_fmr *fmr)
-{
- if (fmr->maps)
- return -EBUSY;
-
- fmr->mr.enabled = 0;
- mlx4_mr_free(dev, &fmr->mr);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(mlx4_fmr_free);
-
-int mlx4_SYNC_TPT(struct mlx4_dev *dev)
-{
- return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_SYNC_TPT, 1000);
-}
-EXPORT_SYMBOL_GPL(mlx4_SYNC_TPT);
+++ /dev/null
-/*
- * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
- * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include <linux/errno.h>
-#include <linux/io-mapping.h>
-
-#include <asm/page.h>
-
-#include "mlx4.h"
-#include "icm.h"
-
-enum {
- MLX4_NUM_RESERVED_UARS = 8
-};
-
-int mlx4_pd_alloc(struct mlx4_dev *dev, u32 *pdn)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
-
- *pdn = mlx4_bitmap_alloc(&priv->pd_bitmap);
- if (*pdn == -1)
- return -ENOMEM;
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(mlx4_pd_alloc);
-
-void mlx4_pd_free(struct mlx4_dev *dev, u32 pdn)
-{
- mlx4_bitmap_free(&mlx4_priv(dev)->pd_bitmap, pdn);
-}
-EXPORT_SYMBOL_GPL(mlx4_pd_free);
-
-int mlx4_init_pd_table(struct mlx4_dev *dev)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
-
- return mlx4_bitmap_init(&priv->pd_bitmap, dev->caps.num_pds,
- (1 << 24) - 1, dev->caps.reserved_pds, 0);
-}
-
-void mlx4_cleanup_pd_table(struct mlx4_dev *dev)
-{
- mlx4_bitmap_cleanup(&mlx4_priv(dev)->pd_bitmap);
-}
-
-
-int mlx4_uar_alloc(struct mlx4_dev *dev, struct mlx4_uar *uar)
-{
- uar->index = mlx4_bitmap_alloc(&mlx4_priv(dev)->uar_table.bitmap);
- if (uar->index == -1)
- return -ENOMEM;
-
- uar->pfn = (pci_resource_start(dev->pdev, 2) >> PAGE_SHIFT) + uar->index;
- uar->map = NULL;
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(mlx4_uar_alloc);
-
-void mlx4_uar_free(struct mlx4_dev *dev, struct mlx4_uar *uar)
-{
- mlx4_bitmap_free(&mlx4_priv(dev)->uar_table.bitmap, uar->index);
-}
-EXPORT_SYMBOL_GPL(mlx4_uar_free);
-
-int mlx4_bf_alloc(struct mlx4_dev *dev, struct mlx4_bf *bf)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- struct mlx4_uar *uar;
- int err = 0;
- int idx;
-
- if (!priv->bf_mapping)
- return -ENOMEM;
-
- mutex_lock(&priv->bf_mutex);
- if (!list_empty(&priv->bf_list))
- uar = list_entry(priv->bf_list.next, struct mlx4_uar, bf_list);
- else {
- if (mlx4_bitmap_avail(&priv->uar_table.bitmap) < MLX4_NUM_RESERVED_UARS) {
- err = -ENOMEM;
- goto out;
- }
- uar = kmalloc(sizeof *uar, GFP_KERNEL);
- if (!uar) {
- err = -ENOMEM;
- goto out;
- }
- err = mlx4_uar_alloc(dev, uar);
- if (err)
- goto free_kmalloc;
-
- uar->map = ioremap(uar->pfn << PAGE_SHIFT, PAGE_SIZE);
- if (!uar->map) {
- err = -ENOMEM;
- goto free_uar;
- }
-
- uar->bf_map = io_mapping_map_wc(priv->bf_mapping, uar->index << PAGE_SHIFT);
- if (!uar->bf_map) {
- err = -ENOMEM;
- goto unamp_uar;
- }
- uar->free_bf_bmap = 0;
- list_add(&uar->bf_list, &priv->bf_list);
- }
-
- bf->uar = uar;
- idx = ffz(uar->free_bf_bmap);
- uar->free_bf_bmap |= 1 << idx;
- bf->uar = uar;
- bf->offset = 0;
- bf->buf_size = dev->caps.bf_reg_size / 2;
- bf->reg = uar->bf_map + idx * dev->caps.bf_reg_size;
- if (uar->free_bf_bmap == (1 << dev->caps.bf_regs_per_page) - 1)
- list_del_init(&uar->bf_list);
-
- goto out;
-
-unamp_uar:
- bf->uar = NULL;
- iounmap(uar->map);
-
-free_uar:
- mlx4_uar_free(dev, uar);
-
-free_kmalloc:
- kfree(uar);
-
-out:
- mutex_unlock(&priv->bf_mutex);
- return err;
-}
-EXPORT_SYMBOL_GPL(mlx4_bf_alloc);
-
-void mlx4_bf_free(struct mlx4_dev *dev, struct mlx4_bf *bf)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- int idx;
-
- if (!bf->uar || !bf->uar->bf_map)
- return;
-
- mutex_lock(&priv->bf_mutex);
- idx = (bf->reg - bf->uar->bf_map) / dev->caps.bf_reg_size;
- bf->uar->free_bf_bmap &= ~(1 << idx);
- if (!bf->uar->free_bf_bmap) {
- if (!list_empty(&bf->uar->bf_list))
- list_del(&bf->uar->bf_list);
-
- io_mapping_unmap(bf->uar->bf_map);
- iounmap(bf->uar->map);
- mlx4_uar_free(dev, bf->uar);
- kfree(bf->uar);
- } else if (list_empty(&bf->uar->bf_list))
- list_add(&bf->uar->bf_list, &priv->bf_list);
-
- mutex_unlock(&priv->bf_mutex);
-}
-EXPORT_SYMBOL_GPL(mlx4_bf_free);
-
-int mlx4_init_uar_table(struct mlx4_dev *dev)
-{
- if (dev->caps.num_uars <= 128) {
- mlx4_err(dev, "Only %d UAR pages (need more than 128)\n",
- dev->caps.num_uars);
- mlx4_err(dev, "Increase firmware log2_uar_bar_megabytes?\n");
- return -ENODEV;
- }
-
- return mlx4_bitmap_init(&mlx4_priv(dev)->uar_table.bitmap,
- dev->caps.num_uars, dev->caps.num_uars - 1,
- max(128, dev->caps.reserved_uars), 0);
-}
-
-void mlx4_cleanup_uar_table(struct mlx4_dev *dev)
-{
- mlx4_bitmap_cleanup(&mlx4_priv(dev)->uar_table.bitmap);
-}
+++ /dev/null
-/*
- * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include <linux/errno.h>
-#include <linux/if_ether.h>
-
-#include <linux/mlx4/cmd.h>
-
-#include "mlx4.h"
-
-#define MLX4_MAC_VALID (1ull << 63)
-#define MLX4_MAC_MASK 0xffffffffffffULL
-
-#define MLX4_VLAN_VALID (1u << 31)
-#define MLX4_VLAN_MASK 0xfff
-
-void mlx4_init_mac_table(struct mlx4_dev *dev, struct mlx4_mac_table *table)
-{
- int i;
-
- mutex_init(&table->mutex);
- for (i = 0; i < MLX4_MAX_MAC_NUM; i++) {
- table->entries[i] = 0;
- table->refs[i] = 0;
- }
- table->max = 1 << dev->caps.log_num_macs;
- table->total = 0;
-}
-
-void mlx4_init_vlan_table(struct mlx4_dev *dev, struct mlx4_vlan_table *table)
-{
- int i;
-
- mutex_init(&table->mutex);
- for (i = 0; i < MLX4_MAX_VLAN_NUM; i++) {
- table->entries[i] = 0;
- table->refs[i] = 0;
- }
- table->max = 1 << dev->caps.log_num_vlans;
- table->total = 0;
-}
-
-static int mlx4_set_port_mac_table(struct mlx4_dev *dev, u8 port,
- __be64 *entries)
-{
- struct mlx4_cmd_mailbox *mailbox;
- u32 in_mod;
- int err;
-
- mailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(mailbox))
- return PTR_ERR(mailbox);
-
- memcpy(mailbox->buf, entries, MLX4_MAC_TABLE_SIZE);
-
- in_mod = MLX4_SET_PORT_MAC_TABLE << 8 | port;
- err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT,
- MLX4_CMD_TIME_CLASS_B);
-
- mlx4_free_cmd_mailbox(dev, mailbox);
- return err;
-}
-
-static int mlx4_uc_steer_add(struct mlx4_dev *dev, u8 port,
- u64 mac, int *qpn, u8 reserve)
-{
- struct mlx4_qp qp;
- u8 gid[16] = {0};
- int err;
-
- if (reserve) {
- err = mlx4_qp_reserve_range(dev, 1, 1, qpn);
- if (err) {
- mlx4_err(dev, "Failed to reserve qp for mac registration\n");
- return err;
- }
- }
- qp.qpn = *qpn;
-
- mac &= 0xffffffffffffULL;
- mac = cpu_to_be64(mac << 16);
- memcpy(&gid[10], &mac, ETH_ALEN);
- gid[5] = port;
- gid[7] = MLX4_UC_STEER << 1;
-
- err = mlx4_qp_attach_common(dev, &qp, gid, 0,
- MLX4_PROT_ETH, MLX4_UC_STEER);
- if (err && reserve)
- mlx4_qp_release_range(dev, *qpn, 1);
-
- return err;
-}
-
-static void mlx4_uc_steer_release(struct mlx4_dev *dev, u8 port,
- u64 mac, int qpn, u8 free)
-{
- struct mlx4_qp qp;
- u8 gid[16] = {0};
-
- qp.qpn = qpn;
- mac &= 0xffffffffffffULL;
- mac = cpu_to_be64(mac << 16);
- memcpy(&gid[10], &mac, ETH_ALEN);
- gid[5] = port;
- gid[7] = MLX4_UC_STEER << 1;
-
- mlx4_qp_detach_common(dev, &qp, gid, MLX4_PROT_ETH, MLX4_UC_STEER);
- if (free)
- mlx4_qp_release_range(dev, qpn, 1);
-}
-
-int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac, int *qpn, u8 wrap)
-{
- struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
- struct mlx4_mac_table *table = &info->mac_table;
- struct mlx4_mac_entry *entry;
- int i, err = 0;
- int free = -1;
-
- if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER) {
- err = mlx4_uc_steer_add(dev, port, mac, qpn, 1);
- if (!err) {
- entry = kmalloc(sizeof *entry, GFP_KERNEL);
- if (!entry) {
- mlx4_uc_steer_release(dev, port, mac, *qpn, 1);
- return -ENOMEM;
- }
- entry->mac = mac;
- err = radix_tree_insert(&info->mac_tree, *qpn, entry);
- if (err) {
- mlx4_uc_steer_release(dev, port, mac, *qpn, 1);
- return err;
- }
- } else
- return err;
- }
- mlx4_dbg(dev, "Registering MAC: 0x%llx\n", (unsigned long long) mac);
- mutex_lock(&table->mutex);
- for (i = 0; i < MLX4_MAX_MAC_NUM - 1; i++) {
- if (free < 0 && !table->refs[i]) {
- free = i;
- continue;
- }
-
- if (mac == (MLX4_MAC_MASK & be64_to_cpu(table->entries[i]))) {
- /* MAC already registered, increase references count */
- ++table->refs[i];
- goto out;
- }
- }
-
- if (free < 0) {
- err = -ENOMEM;
- goto out;
- }
-
- mlx4_dbg(dev, "Free MAC index is %d\n", free);
-
- if (table->total == table->max) {
- /* No free mac entries */
- err = -ENOSPC;
- goto out;
- }
-
- /* Register new MAC */
- table->refs[free] = 1;
- table->entries[free] = cpu_to_be64(mac | MLX4_MAC_VALID);
-
- err = mlx4_set_port_mac_table(dev, port, table->entries);
- if (unlikely(err)) {
- mlx4_err(dev, "Failed adding MAC: 0x%llx\n", (unsigned long long) mac);
- table->refs[free] = 0;
- table->entries[free] = 0;
- goto out;
- }
-
- if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER))
- *qpn = info->base_qpn + free;
- ++table->total;
-out:
- mutex_unlock(&table->mutex);
- return err;
-}
-EXPORT_SYMBOL_GPL(mlx4_register_mac);
-
-static int validate_index(struct mlx4_dev *dev,
- struct mlx4_mac_table *table, int index)
-{
- int err = 0;
-
- if (index < 0 || index >= table->max || !table->entries[index]) {
- mlx4_warn(dev, "No valid Mac entry for the given index\n");
- err = -EINVAL;
- }
- return err;
-}
-
-static int find_index(struct mlx4_dev *dev,
- struct mlx4_mac_table *table, u64 mac)
-{
- int i;
- for (i = 0; i < MLX4_MAX_MAC_NUM; i++) {
- if (mac == (MLX4_MAC_MASK & be64_to_cpu(table->entries[i])))
- return i;
- }
- /* Mac not found */
- return -EINVAL;
-}
-
-void mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, int qpn)
-{
- struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
- struct mlx4_mac_table *table = &info->mac_table;
- int index = qpn - info->base_qpn;
- struct mlx4_mac_entry *entry;
-
- if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER) {
- entry = radix_tree_lookup(&info->mac_tree, qpn);
- if (entry) {
- mlx4_uc_steer_release(dev, port, entry->mac, qpn, 1);
- radix_tree_delete(&info->mac_tree, qpn);
- index = find_index(dev, table, entry->mac);
- kfree(entry);
- }
- }
-
- mutex_lock(&table->mutex);
-
- if (validate_index(dev, table, index))
- goto out;
-
- /* Check whether this address has reference count */
- if (!(--table->refs[index])) {
- table->entries[index] = 0;
- mlx4_set_port_mac_table(dev, port, table->entries);
- --table->total;
- }
-out:
- mutex_unlock(&table->mutex);
-}
-EXPORT_SYMBOL_GPL(mlx4_unregister_mac);
-
-int mlx4_replace_mac(struct mlx4_dev *dev, u8 port, int qpn, u64 new_mac, u8 wrap)
-{
- struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
- struct mlx4_mac_table *table = &info->mac_table;
- int index = qpn - info->base_qpn;
- struct mlx4_mac_entry *entry;
- int err;
-
- if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER) {
- entry = radix_tree_lookup(&info->mac_tree, qpn);
- if (!entry)
- return -EINVAL;
- index = find_index(dev, table, entry->mac);
- mlx4_uc_steer_release(dev, port, entry->mac, qpn, 0);
- entry->mac = new_mac;
- err = mlx4_uc_steer_add(dev, port, entry->mac, &qpn, 0);
- if (err || index < 0)
- return err;
- }
-
- mutex_lock(&table->mutex);
-
- err = validate_index(dev, table, index);
- if (err)
- goto out;
-
- table->entries[index] = cpu_to_be64(new_mac | MLX4_MAC_VALID);
-
- err = mlx4_set_port_mac_table(dev, port, table->entries);
- if (unlikely(err)) {
- mlx4_err(dev, "Failed adding MAC: 0x%llx\n", (unsigned long long) new_mac);
- table->entries[index] = 0;
- }
-out:
- mutex_unlock(&table->mutex);
- return err;
-}
-EXPORT_SYMBOL_GPL(mlx4_replace_mac);
-static int mlx4_set_port_vlan_table(struct mlx4_dev *dev, u8 port,
- __be32 *entries)
-{
- struct mlx4_cmd_mailbox *mailbox;
- u32 in_mod;
- int err;
-
- mailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(mailbox))
- return PTR_ERR(mailbox);
-
- memcpy(mailbox->buf, entries, MLX4_VLAN_TABLE_SIZE);
- in_mod = MLX4_SET_PORT_VLAN_TABLE << 8 | port;
- err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT,
- MLX4_CMD_TIME_CLASS_B);
-
- mlx4_free_cmd_mailbox(dev, mailbox);
-
- return err;
-}
-
-int mlx4_find_cached_vlan(struct mlx4_dev *dev, u8 port, u16 vid, int *idx)
-{
- struct mlx4_vlan_table *table = &mlx4_priv(dev)->port[port].vlan_table;
- int i;
-
- for (i = 0; i < MLX4_MAX_VLAN_NUM; ++i) {
- if (table->refs[i] &&
- (vid == (MLX4_VLAN_MASK &
- be32_to_cpu(table->entries[i])))) {
- /* VLAN already registered, increase reference count */
- *idx = i;
- return 0;
- }
- }
-
- return -ENOENT;
-}
-EXPORT_SYMBOL_GPL(mlx4_find_cached_vlan);
-
-int mlx4_register_vlan(struct mlx4_dev *dev, u8 port, u16 vlan, int *index)
-{
- struct mlx4_vlan_table *table = &mlx4_priv(dev)->port[port].vlan_table;
- int i, err = 0;
- int free = -1;
-
- mutex_lock(&table->mutex);
- for (i = MLX4_VLAN_REGULAR; i < MLX4_MAX_VLAN_NUM; i++) {
- if (free < 0 && (table->refs[i] == 0)) {
- free = i;
- continue;
- }
-
- if (table->refs[i] &&
- (vlan == (MLX4_VLAN_MASK &
- be32_to_cpu(table->entries[i])))) {
- /* Vlan already registered, increase references count */
- *index = i;
- ++table->refs[i];
- goto out;
- }
- }
-
- if (free < 0) {
- err = -ENOMEM;
- goto out;
- }
-
- if (table->total == table->max) {
- /* No free vlan entries */
- err = -ENOSPC;
- goto out;
- }
-
- /* Register new MAC */
- table->refs[free] = 1;
- table->entries[free] = cpu_to_be32(vlan | MLX4_VLAN_VALID);
-
- err = mlx4_set_port_vlan_table(dev, port, table->entries);
- if (unlikely(err)) {
- mlx4_warn(dev, "Failed adding vlan: %u\n", vlan);
- table->refs[free] = 0;
- table->entries[free] = 0;
- goto out;
- }
-
- *index = free;
- ++table->total;
-out:
- mutex_unlock(&table->mutex);
- return err;
-}
-EXPORT_SYMBOL_GPL(mlx4_register_vlan);
-
-void mlx4_unregister_vlan(struct mlx4_dev *dev, u8 port, int index)
-{
- struct mlx4_vlan_table *table = &mlx4_priv(dev)->port[port].vlan_table;
-
- if (index < MLX4_VLAN_REGULAR) {
- mlx4_warn(dev, "Trying to free special vlan index %d\n", index);
- return;
- }
-
- mutex_lock(&table->mutex);
- if (!table->refs[index]) {
- mlx4_warn(dev, "No vlan entry for index %d\n", index);
- goto out;
- }
- if (--table->refs[index]) {
- mlx4_dbg(dev, "Have more references for index %d,"
- "no need to modify vlan table\n", index);
- goto out;
- }
- table->entries[index] = 0;
- mlx4_set_port_vlan_table(dev, port, table->entries);
- --table->total;
-out:
- mutex_unlock(&table->mutex);
-}
-EXPORT_SYMBOL_GPL(mlx4_unregister_vlan);
-
-int mlx4_get_port_ib_caps(struct mlx4_dev *dev, u8 port, __be32 *caps)
-{
- struct mlx4_cmd_mailbox *inmailbox, *outmailbox;
- u8 *inbuf, *outbuf;
- int err;
-
- inmailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(inmailbox))
- return PTR_ERR(inmailbox);
-
- outmailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(outmailbox)) {
- mlx4_free_cmd_mailbox(dev, inmailbox);
- return PTR_ERR(outmailbox);
- }
-
- inbuf = inmailbox->buf;
- outbuf = outmailbox->buf;
- memset(inbuf, 0, 256);
- memset(outbuf, 0, 256);
- inbuf[0] = 1;
- inbuf[1] = 1;
- inbuf[2] = 1;
- inbuf[3] = 1;
- *(__be16 *) (&inbuf[16]) = cpu_to_be16(0x0015);
- *(__be32 *) (&inbuf[20]) = cpu_to_be32(port);
-
- err = mlx4_cmd_box(dev, inmailbox->dma, outmailbox->dma, port, 3,
- MLX4_CMD_MAD_IFC, MLX4_CMD_TIME_CLASS_C);
- if (!err)
- *caps = *(__be32 *) (outbuf + 84);
- mlx4_free_cmd_mailbox(dev, inmailbox);
- mlx4_free_cmd_mailbox(dev, outmailbox);
- return err;
-}
-
-int mlx4_SET_PORT(struct mlx4_dev *dev, u8 port)
-{
- struct mlx4_cmd_mailbox *mailbox;
- int err;
-
- if (dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH)
- return 0;
-
- mailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(mailbox))
- return PTR_ERR(mailbox);
-
- memset(mailbox->buf, 0, 256);
-
- ((__be32 *) mailbox->buf)[1] = dev->caps.ib_port_def_cap[port];
- err = mlx4_cmd(dev, mailbox->dma, port, 0, MLX4_CMD_SET_PORT,
- MLX4_CMD_TIME_CLASS_B);
-
- mlx4_free_cmd_mailbox(dev, mailbox);
- return err;
-}
+++ /dev/null
-/*
- * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
- * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
- * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include <linux/slab.h>
-
-#include "mlx4.h"
-#include "fw.h"
-
-enum {
- MLX4_RES_QP,
- MLX4_RES_RDMARC,
- MLX4_RES_ALTC,
- MLX4_RES_AUXC,
- MLX4_RES_SRQ,
- MLX4_RES_CQ,
- MLX4_RES_EQ,
- MLX4_RES_DMPT,
- MLX4_RES_CMPT,
- MLX4_RES_MTT,
- MLX4_RES_MCG,
- MLX4_RES_NUM
-};
-
-static const char *res_name[] = {
- [MLX4_RES_QP] = "QP",
- [MLX4_RES_RDMARC] = "RDMARC",
- [MLX4_RES_ALTC] = "ALTC",
- [MLX4_RES_AUXC] = "AUXC",
- [MLX4_RES_SRQ] = "SRQ",
- [MLX4_RES_CQ] = "CQ",
- [MLX4_RES_EQ] = "EQ",
- [MLX4_RES_DMPT] = "DMPT",
- [MLX4_RES_CMPT] = "CMPT",
- [MLX4_RES_MTT] = "MTT",
- [MLX4_RES_MCG] = "MCG",
-};
-
-u64 mlx4_make_profile(struct mlx4_dev *dev,
- struct mlx4_profile *request,
- struct mlx4_dev_cap *dev_cap,
- struct mlx4_init_hca_param *init_hca)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- struct mlx4_resource {
- u64 size;
- u64 start;
- int type;
- int num;
- int log_num;
- };
-
- u64 total_size = 0;
- struct mlx4_resource *profile;
- struct mlx4_resource tmp;
- int i, j;
-
- profile = kcalloc(MLX4_RES_NUM, sizeof(*profile), GFP_KERNEL);
- if (!profile)
- return -ENOMEM;
-
- profile[MLX4_RES_QP].size = dev_cap->qpc_entry_sz;
- profile[MLX4_RES_RDMARC].size = dev_cap->rdmarc_entry_sz;
- profile[MLX4_RES_ALTC].size = dev_cap->altc_entry_sz;
- profile[MLX4_RES_AUXC].size = dev_cap->aux_entry_sz;
- profile[MLX4_RES_SRQ].size = dev_cap->srq_entry_sz;
- profile[MLX4_RES_CQ].size = dev_cap->cqc_entry_sz;
- profile[MLX4_RES_EQ].size = dev_cap->eqc_entry_sz;
- profile[MLX4_RES_DMPT].size = dev_cap->dmpt_entry_sz;
- profile[MLX4_RES_CMPT].size = dev_cap->cmpt_entry_sz;
- profile[MLX4_RES_MTT].size = dev->caps.mtts_per_seg * dev_cap->mtt_entry_sz;
- profile[MLX4_RES_MCG].size = MLX4_MGM_ENTRY_SIZE;
-
- profile[MLX4_RES_QP].num = request->num_qp;
- profile[MLX4_RES_RDMARC].num = request->num_qp * request->rdmarc_per_qp;
- profile[MLX4_RES_ALTC].num = request->num_qp;
- profile[MLX4_RES_AUXC].num = request->num_qp;
- profile[MLX4_RES_SRQ].num = request->num_srq;
- profile[MLX4_RES_CQ].num = request->num_cq;
- profile[MLX4_RES_EQ].num = min_t(unsigned, dev_cap->max_eqs, MAX_MSIX);
- profile[MLX4_RES_DMPT].num = request->num_mpt;
- profile[MLX4_RES_CMPT].num = MLX4_NUM_CMPTS;
- profile[MLX4_RES_MTT].num = request->num_mtt;
- profile[MLX4_RES_MCG].num = request->num_mcg;
-
- for (i = 0; i < MLX4_RES_NUM; ++i) {
- profile[i].type = i;
- profile[i].num = roundup_pow_of_two(profile[i].num);
- profile[i].log_num = ilog2(profile[i].num);
- profile[i].size *= profile[i].num;
- profile[i].size = max(profile[i].size, (u64) PAGE_SIZE);
- }
-
- /*
- * Sort the resources in decreasing order of size. Since they
- * all have sizes that are powers of 2, we'll be able to keep
- * resources aligned to their size and pack them without gaps
- * using the sorted order.
- */
- for (i = MLX4_RES_NUM; i > 0; --i)
- for (j = 1; j < i; ++j) {
- if (profile[j].size > profile[j - 1].size) {
- tmp = profile[j];
- profile[j] = profile[j - 1];
- profile[j - 1] = tmp;
- }
- }
-
- for (i = 0; i < MLX4_RES_NUM; ++i) {
- if (profile[i].size) {
- profile[i].start = total_size;
- total_size += profile[i].size;
- }
-
- if (total_size > dev_cap->max_icm_sz) {
- mlx4_err(dev, "Profile requires 0x%llx bytes; "
- "won't fit in 0x%llx bytes of context memory.\n",
- (unsigned long long) total_size,
- (unsigned long long) dev_cap->max_icm_sz);
- kfree(profile);
- return -ENOMEM;
- }
-
- if (profile[i].size)
- mlx4_dbg(dev, " profile[%2d] (%6s): 2^%02d entries @ 0x%10llx, "
- "size 0x%10llx\n",
- i, res_name[profile[i].type], profile[i].log_num,
- (unsigned long long) profile[i].start,
- (unsigned long long) profile[i].size);
- }
-
- mlx4_dbg(dev, "HCA context memory: reserving %d KB\n",
- (int) (total_size >> 10));
-
- for (i = 0; i < MLX4_RES_NUM; ++i) {
- switch (profile[i].type) {
- case MLX4_RES_QP:
- dev->caps.num_qps = profile[i].num;
- init_hca->qpc_base = profile[i].start;
- init_hca->log_num_qps = profile[i].log_num;
- break;
- case MLX4_RES_RDMARC:
- for (priv->qp_table.rdmarc_shift = 0;
- request->num_qp << priv->qp_table.rdmarc_shift < profile[i].num;
- ++priv->qp_table.rdmarc_shift)
- ; /* nothing */
- dev->caps.max_qp_dest_rdma = 1 << priv->qp_table.rdmarc_shift;
- priv->qp_table.rdmarc_base = (u32) profile[i].start;
- init_hca->rdmarc_base = profile[i].start;
- init_hca->log_rd_per_qp = priv->qp_table.rdmarc_shift;
- break;
- case MLX4_RES_ALTC:
- init_hca->altc_base = profile[i].start;
- break;
- case MLX4_RES_AUXC:
- init_hca->auxc_base = profile[i].start;
- break;
- case MLX4_RES_SRQ:
- dev->caps.num_srqs = profile[i].num;
- init_hca->srqc_base = profile[i].start;
- init_hca->log_num_srqs = profile[i].log_num;
- break;
- case MLX4_RES_CQ:
- dev->caps.num_cqs = profile[i].num;
- init_hca->cqc_base = profile[i].start;
- init_hca->log_num_cqs = profile[i].log_num;
- break;
- case MLX4_RES_EQ:
- dev->caps.num_eqs = profile[i].num;
- init_hca->eqc_base = profile[i].start;
- init_hca->log_num_eqs = profile[i].log_num;
- break;
- case MLX4_RES_DMPT:
- dev->caps.num_mpts = profile[i].num;
- priv->mr_table.mpt_base = profile[i].start;
- init_hca->dmpt_base = profile[i].start;
- init_hca->log_mpt_sz = profile[i].log_num;
- break;
- case MLX4_RES_CMPT:
- init_hca->cmpt_base = profile[i].start;
- break;
- case MLX4_RES_MTT:
- dev->caps.num_mtt_segs = profile[i].num;
- priv->mr_table.mtt_base = profile[i].start;
- init_hca->mtt_base = profile[i].start;
- break;
- case MLX4_RES_MCG:
- dev->caps.num_mgms = profile[i].num >> 1;
- dev->caps.num_amgms = profile[i].num >> 1;
- init_hca->mc_base = profile[i].start;
- init_hca->log_mc_entry_sz = ilog2(MLX4_MGM_ENTRY_SIZE);
- init_hca->log_mc_table_sz = profile[i].log_num;
- init_hca->log_mc_hash_sz = profile[i].log_num - 1;
- break;
- default:
- break;
- }
- }
-
- /*
- * PDs don't take any HCA memory, but we assign them as part
- * of the HCA profile anyway.
- */
- dev->caps.num_pds = MLX4_NUM_PDS;
-
- kfree(profile);
- return total_size;
-}
+++ /dev/null
-/*
- * Copyright (c) 2004 Topspin Communications. All rights reserved.
- * Copyright (c) 2005, 2006, 2007 Cisco Systems, Inc. All rights reserved.
- * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
- * Copyright (c) 2004 Voltaire, Inc. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include <linux/gfp.h>
-#include <linux/mlx4/cmd.h>
-#include <linux/mlx4/qp.h>
-
-#include "mlx4.h"
-#include "icm.h"
-
-void mlx4_qp_event(struct mlx4_dev *dev, u32 qpn, int event_type)
-{
- struct mlx4_qp_table *qp_table = &mlx4_priv(dev)->qp_table;
- struct mlx4_qp *qp;
-
- spin_lock(&qp_table->lock);
-
- qp = __mlx4_qp_lookup(dev, qpn);
- if (qp)
- atomic_inc(&qp->refcount);
-
- spin_unlock(&qp_table->lock);
-
- if (!qp) {
- mlx4_warn(dev, "Async event for bogus QP %08x\n", qpn);
- return;
- }
-
- qp->event(qp, event_type);
-
- if (atomic_dec_and_test(&qp->refcount))
- complete(&qp->free);
-}
-
-int mlx4_qp_modify(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
- enum mlx4_qp_state cur_state, enum mlx4_qp_state new_state,
- struct mlx4_qp_context *context, enum mlx4_qp_optpar optpar,
- int sqd_event, struct mlx4_qp *qp)
-{
- static const u16 op[MLX4_QP_NUM_STATE][MLX4_QP_NUM_STATE] = {
- [MLX4_QP_STATE_RST] = {
- [MLX4_QP_STATE_RST] = MLX4_CMD_2RST_QP,
- [MLX4_QP_STATE_ERR] = MLX4_CMD_2ERR_QP,
- [MLX4_QP_STATE_INIT] = MLX4_CMD_RST2INIT_QP,
- },
- [MLX4_QP_STATE_INIT] = {
- [MLX4_QP_STATE_RST] = MLX4_CMD_2RST_QP,
- [MLX4_QP_STATE_ERR] = MLX4_CMD_2ERR_QP,
- [MLX4_QP_STATE_INIT] = MLX4_CMD_INIT2INIT_QP,
- [MLX4_QP_STATE_RTR] = MLX4_CMD_INIT2RTR_QP,
- },
- [MLX4_QP_STATE_RTR] = {
- [MLX4_QP_STATE_RST] = MLX4_CMD_2RST_QP,
- [MLX4_QP_STATE_ERR] = MLX4_CMD_2ERR_QP,
- [MLX4_QP_STATE_RTS] = MLX4_CMD_RTR2RTS_QP,
- },
- [MLX4_QP_STATE_RTS] = {
- [MLX4_QP_STATE_RST] = MLX4_CMD_2RST_QP,
- [MLX4_QP_STATE_ERR] = MLX4_CMD_2ERR_QP,
- [MLX4_QP_STATE_RTS] = MLX4_CMD_RTS2RTS_QP,
- [MLX4_QP_STATE_SQD] = MLX4_CMD_RTS2SQD_QP,
- },
- [MLX4_QP_STATE_SQD] = {
- [MLX4_QP_STATE_RST] = MLX4_CMD_2RST_QP,
- [MLX4_QP_STATE_ERR] = MLX4_CMD_2ERR_QP,
- [MLX4_QP_STATE_RTS] = MLX4_CMD_SQD2RTS_QP,
- [MLX4_QP_STATE_SQD] = MLX4_CMD_SQD2SQD_QP,
- },
- [MLX4_QP_STATE_SQER] = {
- [MLX4_QP_STATE_RST] = MLX4_CMD_2RST_QP,
- [MLX4_QP_STATE_ERR] = MLX4_CMD_2ERR_QP,
- [MLX4_QP_STATE_RTS] = MLX4_CMD_SQERR2RTS_QP,
- },
- [MLX4_QP_STATE_ERR] = {
- [MLX4_QP_STATE_RST] = MLX4_CMD_2RST_QP,
- [MLX4_QP_STATE_ERR] = MLX4_CMD_2ERR_QP,
- }
- };
-
- struct mlx4_cmd_mailbox *mailbox;
- int ret = 0;
-
- if (cur_state >= MLX4_QP_NUM_STATE || new_state >= MLX4_QP_NUM_STATE ||
- !op[cur_state][new_state])
- return -EINVAL;
-
- if (op[cur_state][new_state] == MLX4_CMD_2RST_QP)
- return mlx4_cmd(dev, 0, qp->qpn, 2,
- MLX4_CMD_2RST_QP, MLX4_CMD_TIME_CLASS_A);
-
- mailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(mailbox))
- return PTR_ERR(mailbox);
-
- if (cur_state == MLX4_QP_STATE_RST && new_state == MLX4_QP_STATE_INIT) {
- u64 mtt_addr = mlx4_mtt_addr(dev, mtt);
- context->mtt_base_addr_h = mtt_addr >> 32;
- context->mtt_base_addr_l = cpu_to_be32(mtt_addr & 0xffffffff);
- context->log_page_size = mtt->page_shift - MLX4_ICM_PAGE_SHIFT;
- }
-
- *(__be32 *) mailbox->buf = cpu_to_be32(optpar);
- memcpy(mailbox->buf + 8, context, sizeof *context);
-
- ((struct mlx4_qp_context *) (mailbox->buf + 8))->local_qpn =
- cpu_to_be32(qp->qpn);
-
- ret = mlx4_cmd(dev, mailbox->dma, qp->qpn | (!!sqd_event << 31),
- new_state == MLX4_QP_STATE_RST ? 2 : 0,
- op[cur_state][new_state], MLX4_CMD_TIME_CLASS_C);
-
- mlx4_free_cmd_mailbox(dev, mailbox);
- return ret;
-}
-EXPORT_SYMBOL_GPL(mlx4_qp_modify);
-
-int mlx4_qp_reserve_range(struct mlx4_dev *dev, int cnt, int align, int *base)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- struct mlx4_qp_table *qp_table = &priv->qp_table;
- int qpn;
-
- qpn = mlx4_bitmap_alloc_range(&qp_table->bitmap, cnt, align);
- if (qpn == -1)
- return -ENOMEM;
-
- *base = qpn;
- return 0;
-}
-EXPORT_SYMBOL_GPL(mlx4_qp_reserve_range);
-
-void mlx4_qp_release_range(struct mlx4_dev *dev, int base_qpn, int cnt)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- struct mlx4_qp_table *qp_table = &priv->qp_table;
- if (base_qpn < dev->caps.sqp_start + 8)
- return;
-
- mlx4_bitmap_free_range(&qp_table->bitmap, base_qpn, cnt);
-}
-EXPORT_SYMBOL_GPL(mlx4_qp_release_range);
-
-int mlx4_qp_alloc(struct mlx4_dev *dev, int qpn, struct mlx4_qp *qp)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- struct mlx4_qp_table *qp_table = &priv->qp_table;
- int err;
-
- if (!qpn)
- return -EINVAL;
-
- qp->qpn = qpn;
-
- err = mlx4_table_get(dev, &qp_table->qp_table, qp->qpn);
- if (err)
- goto err_out;
-
- err = mlx4_table_get(dev, &qp_table->auxc_table, qp->qpn);
- if (err)
- goto err_put_qp;
-
- err = mlx4_table_get(dev, &qp_table->altc_table, qp->qpn);
- if (err)
- goto err_put_auxc;
-
- err = mlx4_table_get(dev, &qp_table->rdmarc_table, qp->qpn);
- if (err)
- goto err_put_altc;
-
- err = mlx4_table_get(dev, &qp_table->cmpt_table, qp->qpn);
- if (err)
- goto err_put_rdmarc;
-
- spin_lock_irq(&qp_table->lock);
- err = radix_tree_insert(&dev->qp_table_tree, qp->qpn & (dev->caps.num_qps - 1), qp);
- spin_unlock_irq(&qp_table->lock);
- if (err)
- goto err_put_cmpt;
-
- atomic_set(&qp->refcount, 1);
- init_completion(&qp->free);
-
- return 0;
-
-err_put_cmpt:
- mlx4_table_put(dev, &qp_table->cmpt_table, qp->qpn);
-
-err_put_rdmarc:
- mlx4_table_put(dev, &qp_table->rdmarc_table, qp->qpn);
-
-err_put_altc:
- mlx4_table_put(dev, &qp_table->altc_table, qp->qpn);
-
-err_put_auxc:
- mlx4_table_put(dev, &qp_table->auxc_table, qp->qpn);
-
-err_put_qp:
- mlx4_table_put(dev, &qp_table->qp_table, qp->qpn);
-
-err_out:
- return err;
-}
-EXPORT_SYMBOL_GPL(mlx4_qp_alloc);
-
-void mlx4_qp_remove(struct mlx4_dev *dev, struct mlx4_qp *qp)
-{
- struct mlx4_qp_table *qp_table = &mlx4_priv(dev)->qp_table;
- unsigned long flags;
-
- spin_lock_irqsave(&qp_table->lock, flags);
- radix_tree_delete(&dev->qp_table_tree, qp->qpn & (dev->caps.num_qps - 1));
- spin_unlock_irqrestore(&qp_table->lock, flags);
-}
-EXPORT_SYMBOL_GPL(mlx4_qp_remove);
-
-void mlx4_qp_free(struct mlx4_dev *dev, struct mlx4_qp *qp)
-{
- struct mlx4_qp_table *qp_table = &mlx4_priv(dev)->qp_table;
-
- if (atomic_dec_and_test(&qp->refcount))
- complete(&qp->free);
- wait_for_completion(&qp->free);
-
- mlx4_table_put(dev, &qp_table->cmpt_table, qp->qpn);
- mlx4_table_put(dev, &qp_table->rdmarc_table, qp->qpn);
- mlx4_table_put(dev, &qp_table->altc_table, qp->qpn);
- mlx4_table_put(dev, &qp_table->auxc_table, qp->qpn);
- mlx4_table_put(dev, &qp_table->qp_table, qp->qpn);
-}
-EXPORT_SYMBOL_GPL(mlx4_qp_free);
-
-static int mlx4_CONF_SPECIAL_QP(struct mlx4_dev *dev, u32 base_qpn)
-{
- return mlx4_cmd(dev, 0, base_qpn, 0, MLX4_CMD_CONF_SPECIAL_QP,
- MLX4_CMD_TIME_CLASS_B);
-}
-
-int mlx4_init_qp_table(struct mlx4_dev *dev)
-{
- struct mlx4_qp_table *qp_table = &mlx4_priv(dev)->qp_table;
- int err;
- int reserved_from_top = 0;
-
- spin_lock_init(&qp_table->lock);
- INIT_RADIX_TREE(&dev->qp_table_tree, GFP_ATOMIC);
-
- /*
- * We reserve 2 extra QPs per port for the special QPs. The
- * block of special QPs must be aligned to a multiple of 8, so
- * round up.
- */
- dev->caps.sqp_start =
- ALIGN(dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW], 8);
-
- {
- int sort[MLX4_NUM_QP_REGION];
- int i, j, tmp;
- int last_base = dev->caps.num_qps;
-
- for (i = 1; i < MLX4_NUM_QP_REGION; ++i)
- sort[i] = i;
-
- for (i = MLX4_NUM_QP_REGION; i > 0; --i) {
- for (j = 2; j < i; ++j) {
- if (dev->caps.reserved_qps_cnt[sort[j]] >
- dev->caps.reserved_qps_cnt[sort[j - 1]]) {
- tmp = sort[j];
- sort[j] = sort[j - 1];
- sort[j - 1] = tmp;
- }
- }
- }
-
- for (i = 1; i < MLX4_NUM_QP_REGION; ++i) {
- last_base -= dev->caps.reserved_qps_cnt[sort[i]];
- dev->caps.reserved_qps_base[sort[i]] = last_base;
- reserved_from_top +=
- dev->caps.reserved_qps_cnt[sort[i]];
- }
-
- }
-
- err = mlx4_bitmap_init(&qp_table->bitmap, dev->caps.num_qps,
- (1 << 23) - 1, dev->caps.sqp_start + 8,
- reserved_from_top);
- if (err)
- return err;
-
- return mlx4_CONF_SPECIAL_QP(dev, dev->caps.sqp_start);
-}
-
-void mlx4_cleanup_qp_table(struct mlx4_dev *dev)
-{
- mlx4_CONF_SPECIAL_QP(dev, 0);
- mlx4_bitmap_cleanup(&mlx4_priv(dev)->qp_table.bitmap);
-}
-
-int mlx4_qp_query(struct mlx4_dev *dev, struct mlx4_qp *qp,
- struct mlx4_qp_context *context)
-{
- struct mlx4_cmd_mailbox *mailbox;
- int err;
-
- mailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(mailbox))
- return PTR_ERR(mailbox);
-
- err = mlx4_cmd_box(dev, 0, mailbox->dma, qp->qpn, 0,
- MLX4_CMD_QUERY_QP, MLX4_CMD_TIME_CLASS_A);
- if (!err)
- memcpy(context, mailbox->buf + 8, sizeof *context);
-
- mlx4_free_cmd_mailbox(dev, mailbox);
- return err;
-}
-EXPORT_SYMBOL_GPL(mlx4_qp_query);
-
-int mlx4_qp_to_ready(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
- struct mlx4_qp_context *context,
- struct mlx4_qp *qp, enum mlx4_qp_state *qp_state)
-{
- int err;
- int i;
- enum mlx4_qp_state states[] = {
- MLX4_QP_STATE_RST,
- MLX4_QP_STATE_INIT,
- MLX4_QP_STATE_RTR,
- MLX4_QP_STATE_RTS
- };
-
- for (i = 0; i < ARRAY_SIZE(states) - 1; i++) {
- context->flags &= cpu_to_be32(~(0xf << 28));
- context->flags |= cpu_to_be32(states[i + 1] << 28);
- err = mlx4_qp_modify(dev, mtt, states[i], states[i + 1],
- context, 0, 0, qp);
- if (err) {
- mlx4_err(dev, "Failed to bring QP to state: "
- "%d with error: %d\n",
- states[i + 1], err);
- return err;
- }
-
- *qp_state = states[i + 1];
- }
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(mlx4_qp_to_ready);
+++ /dev/null
-/*
- * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
- * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include <linux/errno.h>
-#include <linux/pci.h>
-#include <linux/delay.h>
-#include <linux/slab.h>
-#include <linux/jiffies.h>
-
-#include "mlx4.h"
-
-int mlx4_reset(struct mlx4_dev *dev)
-{
- void __iomem *reset;
- u32 *hca_header = NULL;
- int pcie_cap;
- u16 devctl;
- u16 linkctl;
- u16 vendor;
- unsigned long end;
- u32 sem;
- int i;
- int err = 0;
-
-#define MLX4_RESET_BASE 0xf0000
-#define MLX4_RESET_SIZE 0x400
-#define MLX4_SEM_OFFSET 0x3fc
-#define MLX4_RESET_OFFSET 0x10
-#define MLX4_RESET_VALUE swab32(1)
-
-#define MLX4_SEM_TIMEOUT_JIFFIES (10 * HZ)
-#define MLX4_RESET_TIMEOUT_JIFFIES (2 * HZ)
-
- /*
- * Reset the chip. This is somewhat ugly because we have to
- * save off the PCI header before reset and then restore it
- * after the chip reboots. We skip config space offsets 22
- * and 23 since those have a special meaning.
- */
-
- /* Do we need to save off the full 4K PCI Express header?? */
- hca_header = kmalloc(256, GFP_KERNEL);
- if (!hca_header) {
- err = -ENOMEM;
- mlx4_err(dev, "Couldn't allocate memory to save HCA "
- "PCI header, aborting.\n");
- goto out;
- }
-
- pcie_cap = pci_pcie_cap(dev->pdev);
-
- for (i = 0; i < 64; ++i) {
- if (i == 22 || i == 23)
- continue;
- if (pci_read_config_dword(dev->pdev, i * 4, hca_header + i)) {
- err = -ENODEV;
- mlx4_err(dev, "Couldn't save HCA "
- "PCI header, aborting.\n");
- goto out;
- }
- }
-
- reset = ioremap(pci_resource_start(dev->pdev, 0) + MLX4_RESET_BASE,
- MLX4_RESET_SIZE);
- if (!reset) {
- err = -ENOMEM;
- mlx4_err(dev, "Couldn't map HCA reset register, aborting.\n");
- goto out;
- }
-
- /* grab HW semaphore to lock out flash updates */
- end = jiffies + MLX4_SEM_TIMEOUT_JIFFIES;
- do {
- sem = readl(reset + MLX4_SEM_OFFSET);
- if (!sem)
- break;
-
- msleep(1);
- } while (time_before(jiffies, end));
-
- if (sem) {
- mlx4_err(dev, "Failed to obtain HW semaphore, aborting\n");
- err = -EAGAIN;
- iounmap(reset);
- goto out;
- }
-
- /* actually hit reset */
- writel(MLX4_RESET_VALUE, reset + MLX4_RESET_OFFSET);
- iounmap(reset);
-
- /* Docs say to wait one second before accessing device */
- msleep(1000);
-
- end = jiffies + MLX4_RESET_TIMEOUT_JIFFIES;
- do {
- if (!pci_read_config_word(dev->pdev, PCI_VENDOR_ID, &vendor) &&
- vendor != 0xffff)
- break;
-
- msleep(1);
- } while (time_before(jiffies, end));
-
- if (vendor == 0xffff) {
- err = -ENODEV;
- mlx4_err(dev, "PCI device did not come back after reset, "
- "aborting.\n");
- goto out;
- }
-
- /* Now restore the PCI headers */
- if (pcie_cap) {
- devctl = hca_header[(pcie_cap + PCI_EXP_DEVCTL) / 4];
- if (pci_write_config_word(dev->pdev, pcie_cap + PCI_EXP_DEVCTL,
- devctl)) {
- err = -ENODEV;
- mlx4_err(dev, "Couldn't restore HCA PCI Express "
- "Device Control register, aborting.\n");
- goto out;
- }
- linkctl = hca_header[(pcie_cap + PCI_EXP_LNKCTL) / 4];
- if (pci_write_config_word(dev->pdev, pcie_cap + PCI_EXP_LNKCTL,
- linkctl)) {
- err = -ENODEV;
- mlx4_err(dev, "Couldn't restore HCA PCI Express "
- "Link control register, aborting.\n");
- goto out;
- }
- }
-
- for (i = 0; i < 16; ++i) {
- if (i * 4 == PCI_COMMAND)
- continue;
-
- if (pci_write_config_dword(dev->pdev, i * 4, hca_header[i])) {
- err = -ENODEV;
- mlx4_err(dev, "Couldn't restore HCA reg %x, "
- "aborting.\n", i);
- goto out;
- }
- }
-
- if (pci_write_config_dword(dev->pdev, PCI_COMMAND,
- hca_header[PCI_COMMAND / 4])) {
- err = -ENODEV;
- mlx4_err(dev, "Couldn't restore HCA COMMAND, "
- "aborting.\n");
- goto out;
- }
-
-out:
- kfree(hca_header);
-
- return err;
-}
+++ /dev/null
-/*
- * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- *
- */
-
-#include <linux/errno.h>
-#include <linux/if_ether.h>
-
-#include <linux/mlx4/cmd.h>
-
-#include "mlx4.h"
-
-int mlx4_SENSE_PORT(struct mlx4_dev *dev, int port,
- enum mlx4_port_type *type)
-{
- u64 out_param;
- int err = 0;
-
- err = mlx4_cmd_imm(dev, 0, &out_param, port, 0,
- MLX4_CMD_SENSE_PORT, MLX4_CMD_TIME_CLASS_B);
- if (err) {
- mlx4_err(dev, "Sense command failed for port: %d\n", port);
- return err;
- }
-
- if (out_param > 2) {
- mlx4_err(dev, "Sense returned illegal value: 0x%llx\n", out_param);
- return -EINVAL;
- }
-
- *type = out_param;
- return 0;
-}
-
-void mlx4_do_sense_ports(struct mlx4_dev *dev,
- enum mlx4_port_type *stype,
- enum mlx4_port_type *defaults)
-{
- struct mlx4_sense *sense = &mlx4_priv(dev)->sense;
- int err;
- int i;
-
- for (i = 1; i <= dev->caps.num_ports; i++) {
- stype[i - 1] = 0;
- if (sense->do_sense_port[i] && sense->sense_allowed[i] &&
- dev->caps.possible_type[i] == MLX4_PORT_TYPE_AUTO) {
- err = mlx4_SENSE_PORT(dev, i, &stype[i - 1]);
- if (err)
- stype[i - 1] = defaults[i - 1];
- } else
- stype[i - 1] = defaults[i - 1];
- }
-
- /*
- * Adjust port configuration:
- * If port 1 sensed nothing and port 2 is IB, set both as IB
- * If port 2 sensed nothing and port 1 is Eth, set both as Eth
- */
- if (stype[0] == MLX4_PORT_TYPE_ETH) {
- for (i = 1; i < dev->caps.num_ports; i++)
- stype[i] = stype[i] ? stype[i] : MLX4_PORT_TYPE_ETH;
- }
- if (stype[dev->caps.num_ports - 1] == MLX4_PORT_TYPE_IB) {
- for (i = 0; i < dev->caps.num_ports - 1; i++)
- stype[i] = stype[i] ? stype[i] : MLX4_PORT_TYPE_IB;
- }
-
- /*
- * If sensed nothing, remain in current configuration.
- */
- for (i = 0; i < dev->caps.num_ports; i++)
- stype[i] = stype[i] ? stype[i] : defaults[i];
-
-}
-
-static void mlx4_sense_port(struct work_struct *work)
-{
- struct delayed_work *delay = to_delayed_work(work);
- struct mlx4_sense *sense = container_of(delay, struct mlx4_sense,
- sense_poll);
- struct mlx4_dev *dev = sense->dev;
- struct mlx4_priv *priv = mlx4_priv(dev);
- enum mlx4_port_type stype[MLX4_MAX_PORTS];
-
- mutex_lock(&priv->port_mutex);
- mlx4_do_sense_ports(dev, stype, &dev->caps.port_type[1]);
-
- if (mlx4_check_port_params(dev, stype))
- goto sense_again;
-
- if (mlx4_change_port_types(dev, stype))
- mlx4_err(dev, "Failed to change port_types\n");
-
-sense_again:
- mutex_unlock(&priv->port_mutex);
- queue_delayed_work(mlx4_wq , &sense->sense_poll,
- round_jiffies_relative(MLX4_SENSE_RANGE));
-}
-
-void mlx4_start_sense(struct mlx4_dev *dev)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- struct mlx4_sense *sense = &priv->sense;
-
- if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP))
- return;
-
- queue_delayed_work(mlx4_wq , &sense->sense_poll,
- round_jiffies_relative(MLX4_SENSE_RANGE));
-}
-
-void mlx4_stop_sense(struct mlx4_dev *dev)
-{
- cancel_delayed_work_sync(&mlx4_priv(dev)->sense.sense_poll);
-}
-
-void mlx4_sense_init(struct mlx4_dev *dev)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- struct mlx4_sense *sense = &priv->sense;
- int port;
-
- sense->dev = dev;
- for (port = 1; port <= dev->caps.num_ports; port++)
- sense->do_sense_port[port] = 1;
-
- INIT_DELAYED_WORK_DEFERRABLE(&sense->sense_poll, mlx4_sense_port);
-}
+++ /dev/null
-/*
- * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
- * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include <linux/mlx4/cmd.h>
-#include <linux/gfp.h>
-
-#include "mlx4.h"
-#include "icm.h"
-
-struct mlx4_srq_context {
- __be32 state_logsize_srqn;
- u8 logstride;
- u8 reserved1[3];
- u8 pg_offset;
- u8 reserved2[3];
- u32 reserved3;
- u8 log_page_size;
- u8 reserved4[2];
- u8 mtt_base_addr_h;
- __be32 mtt_base_addr_l;
- __be32 pd;
- __be16 limit_watermark;
- __be16 wqe_cnt;
- u16 reserved5;
- __be16 wqe_counter;
- u32 reserved6;
- __be64 db_rec_addr;
-};
-
-void mlx4_srq_event(struct mlx4_dev *dev, u32 srqn, int event_type)
-{
- struct mlx4_srq_table *srq_table = &mlx4_priv(dev)->srq_table;
- struct mlx4_srq *srq;
-
- spin_lock(&srq_table->lock);
-
- srq = radix_tree_lookup(&srq_table->tree, srqn & (dev->caps.num_srqs - 1));
- if (srq)
- atomic_inc(&srq->refcount);
-
- spin_unlock(&srq_table->lock);
-
- if (!srq) {
- mlx4_warn(dev, "Async event for bogus SRQ %08x\n", srqn);
- return;
- }
-
- srq->event(srq, event_type);
-
- if (atomic_dec_and_test(&srq->refcount))
- complete(&srq->free);
-}
-
-static int mlx4_SW2HW_SRQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
- int srq_num)
-{
- return mlx4_cmd(dev, mailbox->dma, srq_num, 0, MLX4_CMD_SW2HW_SRQ,
- MLX4_CMD_TIME_CLASS_A);
-}
-
-static int mlx4_HW2SW_SRQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
- int srq_num)
-{
- return mlx4_cmd_box(dev, 0, mailbox ? mailbox->dma : 0, srq_num,
- mailbox ? 0 : 1, MLX4_CMD_HW2SW_SRQ,
- MLX4_CMD_TIME_CLASS_A);
-}
-
-static int mlx4_ARM_SRQ(struct mlx4_dev *dev, int srq_num, int limit_watermark)
-{
- return mlx4_cmd(dev, limit_watermark, srq_num, 0, MLX4_CMD_ARM_SRQ,
- MLX4_CMD_TIME_CLASS_B);
-}
-
-static int mlx4_QUERY_SRQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
- int srq_num)
-{
- return mlx4_cmd_box(dev, 0, mailbox->dma, srq_num, 0, MLX4_CMD_QUERY_SRQ,
- MLX4_CMD_TIME_CLASS_A);
-}
-
-int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, struct mlx4_mtt *mtt,
- u64 db_rec, struct mlx4_srq *srq)
-{
- struct mlx4_srq_table *srq_table = &mlx4_priv(dev)->srq_table;
- struct mlx4_cmd_mailbox *mailbox;
- struct mlx4_srq_context *srq_context;
- u64 mtt_addr;
- int err;
-
- srq->srqn = mlx4_bitmap_alloc(&srq_table->bitmap);
- if (srq->srqn == -1)
- return -ENOMEM;
-
- err = mlx4_table_get(dev, &srq_table->table, srq->srqn);
- if (err)
- goto err_out;
-
- err = mlx4_table_get(dev, &srq_table->cmpt_table, srq->srqn);
- if (err)
- goto err_put;
-
- spin_lock_irq(&srq_table->lock);
- err = radix_tree_insert(&srq_table->tree, srq->srqn, srq);
- spin_unlock_irq(&srq_table->lock);
- if (err)
- goto err_cmpt_put;
-
- mailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(mailbox)) {
- err = PTR_ERR(mailbox);
- goto err_radix;
- }
-
- srq_context = mailbox->buf;
- memset(srq_context, 0, sizeof *srq_context);
-
- srq_context->state_logsize_srqn = cpu_to_be32((ilog2(srq->max) << 24) |
- srq->srqn);
- srq_context->logstride = srq->wqe_shift - 4;
- srq_context->log_page_size = mtt->page_shift - MLX4_ICM_PAGE_SHIFT;
-
- mtt_addr = mlx4_mtt_addr(dev, mtt);
- srq_context->mtt_base_addr_h = mtt_addr >> 32;
- srq_context->mtt_base_addr_l = cpu_to_be32(mtt_addr & 0xffffffff);
- srq_context->pd = cpu_to_be32(pdn);
- srq_context->db_rec_addr = cpu_to_be64(db_rec);
-
- err = mlx4_SW2HW_SRQ(dev, mailbox, srq->srqn);
- mlx4_free_cmd_mailbox(dev, mailbox);
- if (err)
- goto err_radix;
-
- atomic_set(&srq->refcount, 1);
- init_completion(&srq->free);
-
- return 0;
-
-err_radix:
- spin_lock_irq(&srq_table->lock);
- radix_tree_delete(&srq_table->tree, srq->srqn);
- spin_unlock_irq(&srq_table->lock);
-
-err_cmpt_put:
- mlx4_table_put(dev, &srq_table->cmpt_table, srq->srqn);
-
-err_put:
- mlx4_table_put(dev, &srq_table->table, srq->srqn);
-
-err_out:
- mlx4_bitmap_free(&srq_table->bitmap, srq->srqn);
-
- return err;
-}
-EXPORT_SYMBOL_GPL(mlx4_srq_alloc);
-
-void mlx4_srq_free(struct mlx4_dev *dev, struct mlx4_srq *srq)
-{
- struct mlx4_srq_table *srq_table = &mlx4_priv(dev)->srq_table;
- int err;
-
- err = mlx4_HW2SW_SRQ(dev, NULL, srq->srqn);
- if (err)
- mlx4_warn(dev, "HW2SW_SRQ failed (%d) for SRQN %06x\n", err, srq->srqn);
-
- spin_lock_irq(&srq_table->lock);
- radix_tree_delete(&srq_table->tree, srq->srqn);
- spin_unlock_irq(&srq_table->lock);
-
- if (atomic_dec_and_test(&srq->refcount))
- complete(&srq->free);
- wait_for_completion(&srq->free);
-
- mlx4_table_put(dev, &srq_table->table, srq->srqn);
- mlx4_bitmap_free(&srq_table->bitmap, srq->srqn);
-}
-EXPORT_SYMBOL_GPL(mlx4_srq_free);
-
-int mlx4_srq_arm(struct mlx4_dev *dev, struct mlx4_srq *srq, int limit_watermark)
-{
- return mlx4_ARM_SRQ(dev, srq->srqn, limit_watermark);
-}
-EXPORT_SYMBOL_GPL(mlx4_srq_arm);
-
-int mlx4_srq_query(struct mlx4_dev *dev, struct mlx4_srq *srq, int *limit_watermark)
-{
- struct mlx4_cmd_mailbox *mailbox;
- struct mlx4_srq_context *srq_context;
- int err;
-
- mailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(mailbox))
- return PTR_ERR(mailbox);
-
- srq_context = mailbox->buf;
-
- err = mlx4_QUERY_SRQ(dev, mailbox, srq->srqn);
- if (err)
- goto err_out;
- *limit_watermark = be16_to_cpu(srq_context->limit_watermark);
-
-err_out:
- mlx4_free_cmd_mailbox(dev, mailbox);
- return err;
-}
-EXPORT_SYMBOL_GPL(mlx4_srq_query);
-
-int mlx4_init_srq_table(struct mlx4_dev *dev)
-{
- struct mlx4_srq_table *srq_table = &mlx4_priv(dev)->srq_table;
- int err;
-
- spin_lock_init(&srq_table->lock);
- INIT_RADIX_TREE(&srq_table->tree, GFP_ATOMIC);
-
- err = mlx4_bitmap_init(&srq_table->bitmap, dev->caps.num_srqs,
- dev->caps.num_srqs - 1, dev->caps.reserved_srqs, 0);
- if (err)
- return err;
-
- return 0;
-}
-
-void mlx4_cleanup_srq_table(struct mlx4_dev *dev)
-{
- mlx4_bitmap_cleanup(&mlx4_priv(dev)->srq_table.bitmap);
-}
projects / GitHub / MotorolaMobilityLLC / kernel-slsi.git / commitdiff