--- /dev/null
+/*
+ * Copyright (c) 2005 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.
+ *
+ * $Id$
+ */
+
+#include "mthca_dev.h"
+
+enum {
+ MTHCA_CATAS_POLL_INTERVAL = 5 * HZ,
+
+ MTHCA_CATAS_TYPE_INTERNAL = 0,
+ MTHCA_CATAS_TYPE_UPLINK = 3,
+ MTHCA_CATAS_TYPE_DDR = 4,
+ MTHCA_CATAS_TYPE_PARITY = 5,
+};
+
+static DEFINE_SPINLOCK(catas_lock);
+
+static void handle_catas(struct mthca_dev *dev)
+{
+ struct ib_event event;
+ const char *type;
+ int i;
+
+ event.device = &dev->ib_dev;
+ event.event = IB_EVENT_DEVICE_FATAL;
+ event.element.port_num = 0;
+
+ ib_dispatch_event(&event);
+
+ switch (swab32(readl(dev->catas_err.map)) >> 24) {
+ case MTHCA_CATAS_TYPE_INTERNAL:
+ type = "internal error";
+ break;
+ case MTHCA_CATAS_TYPE_UPLINK:
+ type = "uplink bus error";
+ break;
+ case MTHCA_CATAS_TYPE_DDR:
+ type = "DDR data error";
+ break;
+ case MTHCA_CATAS_TYPE_PARITY:
+ type = "internal parity error";
+ break;
+ default:
+ type = "unknown error";
+ break;
+ }
+
+ mthca_err(dev, "Catastrophic error detected: %s\n", type);
+ for (i = 0; i < dev->catas_err.size; ++i)
+ mthca_err(dev, " buf[%02x]: %08x\n",
+ i, swab32(readl(dev->catas_err.map + i)));
+}
+
+static void poll_catas(unsigned long dev_ptr)
+{
+ struct mthca_dev *dev = (struct mthca_dev *) dev_ptr;
+ unsigned long flags;
+ int i;
+
+ for (i = 0; i < dev->catas_err.size; ++i)
+ if (readl(dev->catas_err.map + i)) {
+ handle_catas(dev);
+ return;
+ }
+
+ spin_lock_irqsave(&catas_lock, flags);
+ if (dev->catas_err.stop)
+ mod_timer(&dev->catas_err.timer,
+ jiffies + MTHCA_CATAS_POLL_INTERVAL);
+ spin_unlock_irqrestore(&catas_lock, flags);
+
+ return;
+}
+
+void mthca_start_catas_poll(struct mthca_dev *dev)
+{
+ unsigned long addr;
+
+ init_timer(&dev->catas_err.timer);
+ dev->catas_err.stop = 0;
+ dev->catas_err.map = NULL;
+
+ addr = pci_resource_start(dev->pdev, 0) +
+ ((pci_resource_len(dev->pdev, 0) - 1) &
+ dev->catas_err.addr);
+
+ if (!request_mem_region(addr, dev->catas_err.size * 4,
+ DRV_NAME)) {
+ mthca_warn(dev, "couldn't request catastrophic error region "
+ "at 0x%lx/0x%x\n", addr, dev->catas_err.size * 4);
+ return;
+ }
+
+ dev->catas_err.map = ioremap(addr, dev->catas_err.size * 4);
+ if (!dev->catas_err.map) {
+ mthca_warn(dev, "couldn't map catastrophic error region "
+ "at 0x%lx/0x%x\n", addr, dev->catas_err.size * 4);
+ release_mem_region(addr, dev->catas_err.size * 4);
+ return;
+ }
+
+ dev->catas_err.timer.data = (unsigned long) dev;
+ dev->catas_err.timer.function = poll_catas;
+ dev->catas_err.timer.expires = jiffies + MTHCA_CATAS_POLL_INTERVAL;
+ add_timer(&dev->catas_err.timer);
+}
+
+void mthca_stop_catas_poll(struct mthca_dev *dev)
+{
+ spin_lock_irq(&catas_lock);
+ dev->catas_err.stop = 1;
+ spin_unlock_irq(&catas_lock);
+
+ del_timer_sync(&dev->catas_err.timer);
+
+ if (dev->catas_err.map) {
+ iounmap(dev->catas_err.map);
+ release_mem_region(pci_resource_start(dev->pdev, 0) +
+ ((pci_resource_len(dev->pdev, 0) - 1) &
+ dev->catas_err.addr),
+ dev->catas_err.size * 4);
+ }
+}
/*
* Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
* Copyright (c) 2005 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2005 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
MTHCA_GET(lg, outbox, QUERY_FW_MAX_CMD_OFFSET);
dev->cmd.max_cmds = 1 << lg;
+ MTHCA_GET(dev->catas_err.addr, outbox, QUERY_FW_ERR_START_OFFSET);
+ MTHCA_GET(dev->catas_err.size, outbox, QUERY_FW_ERR_SIZE_OFFSET);
mthca_dbg(dev, "FW version %012llx, max commands %d\n",
(unsigned long long) dev->fw_ver, dev->cmd.max_cmds);
+ mthca_dbg(dev, "Catastrophic error buffer at 0x%llx, size 0x%x\n",
+ (unsigned long long) dev->catas_err.addr, dev->catas_err.size);
if (mthca_is_memfree(dev)) {
MTHCA_GET(dev->fw.arbel.fw_pages, outbox, QUERY_FW_SIZE_OFFSET);
projects / GitHub / LineageOS / android_kernel_motorola_exynos9610.git / commitdiff