From f1372ee11901336d287a4032fabe433d33586753 Mon Sep 17 00:00:00 2001 From: "Kalderon, Michal" Date: Wed, 21 Jun 2017 16:22:44 +0300 Subject: [PATCH] qed: Duplicate qed_roce.[ch] to qed_rdma.[ch] This patch adds files that will contain common code for RoCE/iWARP. The files are currently identical to qed_roce.c / qed_roce.h and intentionally not added to the makefile. The next patch in the series will modify the files so that roce specific code is left in qed_roce and common roce/iwarp code will be placed in qed_rdma This patch is the result of a simple cp qed_rdma.c qed_roce.c cp qed_rdma.h qed_roce.h Signed-off-by: Michal Kalderon Signed-off-by: Yuval Mintz Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qed/qed_rdma.c | 2805 ++++++++++++++++++++ drivers/net/ethernet/qlogic/qed/qed_rdma.h | 178 ++ 2 files changed, 2983 insertions(+) create mode 100644 drivers/net/ethernet/qlogic/qed/qed_rdma.c create mode 100644 drivers/net/ethernet/qlogic/qed/qed_rdma.h diff --git a/drivers/net/ethernet/qlogic/qed/qed_rdma.c b/drivers/net/ethernet/qlogic/qed/qed_rdma.c new file mode 100644 index 000000000000..9dc41a899ef2 --- /dev/null +++ b/drivers/net/ethernet/qlogic/qed/qed_rdma.c @@ -0,0 +1,2805 @@ +/* QLogic qed NIC Driver + * Copyright (c) 2015-2017 QLogic Corporation + * + * 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 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "qed.h" +#include "qed_cxt.h" +#include "qed_hsi.h" +#include "qed_hw.h" +#include "qed_init_ops.h" +#include "qed_int.h" +#include "qed_ll2.h" +#include "qed_mcp.h" +#include "qed_reg_addr.h" +#include "qed_roce.h" +#include +#include "qed_sp.h" + +static void qed_roce_free_real_icid(struct qed_hwfn *p_hwfn, u16 icid); + +static int +qed_roce_async_event(struct qed_hwfn *p_hwfn, + u8 fw_event_code, + u16 echo, union event_ring_data *data, u8 fw_return_code) +{ + if (fw_event_code == ROCE_ASYNC_EVENT_DESTROY_QP_DONE) { + u16 icid = + (u16)le32_to_cpu(data->rdma_data.rdma_destroy_qp_data.cid); + + /* icid release in this async event can occur only if the icid + * was offloaded to the FW. In case it wasn't offloaded this is + * handled in qed_roce_sp_destroy_qp. + */ + qed_roce_free_real_icid(p_hwfn, icid); + } else { + struct qed_rdma_events *events = &p_hwfn->p_rdma_info->events; + + events->affiliated_event(p_hwfn->p_rdma_info->events.context, + fw_event_code, + (void *)&data->rdma_data.async_handle); + } + + return 0; +} + +static int qed_rdma_bmap_alloc(struct qed_hwfn *p_hwfn, + struct qed_bmap *bmap, u32 max_count, char *name) +{ + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "max_count = %08x\n", max_count); + + bmap->max_count = max_count; + + bmap->bitmap = kcalloc(BITS_TO_LONGS(max_count), sizeof(long), + GFP_KERNEL); + if (!bmap->bitmap) + return -ENOMEM; + + snprintf(bmap->name, QED_RDMA_MAX_BMAP_NAME, "%s", name); + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "0\n"); + return 0; +} + +static int qed_rdma_bmap_alloc_id(struct qed_hwfn *p_hwfn, + struct qed_bmap *bmap, u32 *id_num) +{ + *id_num = find_first_zero_bit(bmap->bitmap, bmap->max_count); + if (*id_num >= bmap->max_count) + return -EINVAL; + + __set_bit(*id_num, bmap->bitmap); + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "%s bitmap: allocated id %d\n", + bmap->name, *id_num); + + return 0; +} + +static void qed_bmap_set_id(struct qed_hwfn *p_hwfn, + struct qed_bmap *bmap, u32 id_num) +{ + if (id_num >= bmap->max_count) + return; + + __set_bit(id_num, bmap->bitmap); +} + +static void qed_bmap_release_id(struct qed_hwfn *p_hwfn, + struct qed_bmap *bmap, u32 id_num) +{ + bool b_acquired; + + if (id_num >= bmap->max_count) + return; + + b_acquired = test_and_clear_bit(id_num, bmap->bitmap); + if (!b_acquired) { + DP_NOTICE(p_hwfn, "%s bitmap: id %d already released\n", + bmap->name, id_num); + return; + } + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "%s bitmap: released id %d\n", + bmap->name, id_num); +} + +static int qed_bmap_test_id(struct qed_hwfn *p_hwfn, + struct qed_bmap *bmap, u32 id_num) +{ + if (id_num >= bmap->max_count) + return -1; + + return test_bit(id_num, bmap->bitmap); +} + +static bool qed_bmap_is_empty(struct qed_bmap *bmap) +{ + return bmap->max_count == find_first_bit(bmap->bitmap, bmap->max_count); +} + +static u32 qed_rdma_get_sb_id(void *p_hwfn, u32 rel_sb_id) +{ + /* First sb id for RoCE is after all the l2 sb */ + return FEAT_NUM((struct qed_hwfn *)p_hwfn, QED_PF_L2_QUE) + rel_sb_id; +} + +static int qed_rdma_alloc(struct qed_hwfn *p_hwfn, + struct qed_ptt *p_ptt, + struct qed_rdma_start_in_params *params) +{ + struct qed_rdma_info *p_rdma_info; + u32 num_cons, num_tasks; + int rc = -ENOMEM; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Allocating RDMA\n"); + + /* Allocate a struct with current pf rdma info */ + p_rdma_info = kzalloc(sizeof(*p_rdma_info), GFP_KERNEL); + if (!p_rdma_info) + return rc; + + p_hwfn->p_rdma_info = p_rdma_info; + p_rdma_info->proto = PROTOCOLID_ROCE; + + num_cons = qed_cxt_get_proto_cid_count(p_hwfn, p_rdma_info->proto, + NULL); + + p_rdma_info->num_qps = num_cons / 2; + + num_tasks = qed_cxt_get_proto_tid_count(p_hwfn, PROTOCOLID_ROCE); + + /* Each MR uses a single task */ + p_rdma_info->num_mrs = num_tasks; + + /* Queue zone lines are shared between RoCE and L2 in such a way that + * they can be used by each without obstructing the other. + */ + p_rdma_info->queue_zone_base = (u16)RESC_START(p_hwfn, QED_L2_QUEUE); + p_rdma_info->max_queue_zones = (u16)RESC_NUM(p_hwfn, QED_L2_QUEUE); + + /* Allocate a struct with device params and fill it */ + p_rdma_info->dev = kzalloc(sizeof(*p_rdma_info->dev), GFP_KERNEL); + if (!p_rdma_info->dev) + goto free_rdma_info; + + /* Allocate a struct with port params and fill it */ + p_rdma_info->port = kzalloc(sizeof(*p_rdma_info->port), GFP_KERNEL); + if (!p_rdma_info->port) + goto free_rdma_dev; + + /* Allocate bit map for pd's */ + rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->pd_map, RDMA_MAX_PDS, + "PD"); + if (rc) { + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, + "Failed to allocate pd_map, rc = %d\n", + rc); + goto free_rdma_port; + } + + /* Allocate DPI bitmap */ + rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->dpi_map, + p_hwfn->dpi_count, "DPI"); + if (rc) { + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, + "Failed to allocate DPI bitmap, rc = %d\n", rc); + goto free_pd_map; + } + + /* Allocate bitmap for cq's. The maximum number of CQs is bounded to + * twice the number of QPs. + */ + rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->cq_map, + p_rdma_info->num_qps * 2, "CQ"); + if (rc) { + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, + "Failed to allocate cq bitmap, rc = %d\n", rc); + goto free_dpi_map; + } + + /* Allocate bitmap for toggle bit for cq icids + * We toggle the bit every time we create or resize cq for a given icid. + * The maximum number of CQs is bounded to twice the number of QPs. + */ + rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->toggle_bits, + p_rdma_info->num_qps * 2, "Toggle"); + if (rc) { + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, + "Failed to allocate toogle bits, rc = %d\n", rc); + goto free_cq_map; + } + + /* Allocate bitmap for itids */ + rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->tid_map, + p_rdma_info->num_mrs, "MR"); + if (rc) { + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, + "Failed to allocate itids bitmaps, rc = %d\n", rc); + goto free_toggle_map; + } + + /* Allocate bitmap for cids used for qps. */ + rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->cid_map, num_cons, + "CID"); + if (rc) { + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, + "Failed to allocate cid bitmap, rc = %d\n", rc); + goto free_tid_map; + } + + /* Allocate bitmap for cids used for responders/requesters. */ + rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->real_cid_map, num_cons, + "REAL_CID"); + if (rc) { + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, + "Failed to allocate real cid bitmap, rc = %d\n", rc); + goto free_cid_map; + } + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Allocation successful\n"); + return 0; + +free_cid_map: + kfree(p_rdma_info->cid_map.bitmap); +free_tid_map: + kfree(p_rdma_info->tid_map.bitmap); +free_toggle_map: + kfree(p_rdma_info->toggle_bits.bitmap); +free_cq_map: + kfree(p_rdma_info->cq_map.bitmap); +free_dpi_map: + kfree(p_rdma_info->dpi_map.bitmap); +free_pd_map: + kfree(p_rdma_info->pd_map.bitmap); +free_rdma_port: + kfree(p_rdma_info->port); +free_rdma_dev: + kfree(p_rdma_info->dev); +free_rdma_info: + kfree(p_rdma_info); + + return rc; +} + +static void qed_rdma_bmap_free(struct qed_hwfn *p_hwfn, + struct qed_bmap *bmap, bool check) +{ + int weight = bitmap_weight(bmap->bitmap, bmap->max_count); + int last_line = bmap->max_count / (64 * 8); + int last_item = last_line * 8 + + DIV_ROUND_UP(bmap->max_count % (64 * 8), 64); + u64 *pmap = (u64 *)bmap->bitmap; + int line, item, offset; + u8 str_last_line[200] = { 0 }; + + if (!weight || !check) + goto end; + + DP_NOTICE(p_hwfn, + "%s bitmap not free - size=%d, weight=%d, 512 bits per line\n", + bmap->name, bmap->max_count, weight); + + /* print aligned non-zero lines, if any */ + for (item = 0, line = 0; line < last_line; line++, item += 8) + if (bitmap_weight((unsigned long *)&pmap[item], 64 * 8)) + DP_NOTICE(p_hwfn, + "line 0x%04x: 0x%016llx 0x%016llx 0x%016llx 0x%016llx 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n", + line, + pmap[item], + pmap[item + 1], + pmap[item + 2], + pmap[item + 3], + pmap[item + 4], + pmap[item + 5], + pmap[item + 6], pmap[item + 7]); + + /* print last unaligned non-zero line, if any */ + if ((bmap->max_count % (64 * 8)) && + (bitmap_weight((unsigned long *)&pmap[item], + bmap->max_count - item * 64))) { + offset = sprintf(str_last_line, "line 0x%04x: ", line); + for (; item < last_item; item++) + offset += sprintf(str_last_line + offset, + "0x%016llx ", pmap[item]); + DP_NOTICE(p_hwfn, "%s\n", str_last_line); + } + +end: + kfree(bmap->bitmap); + bmap->bitmap = NULL; +} + +static void qed_rdma_resc_free(struct qed_hwfn *p_hwfn) +{ + struct qed_rdma_info *p_rdma_info = p_hwfn->p_rdma_info; + + qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->cid_map, 1); + qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->pd_map, 1); + qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->dpi_map, 1); + qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->cq_map, 1); + qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->toggle_bits, 0); + qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->tid_map, 1); + + kfree(p_rdma_info->port); + kfree(p_rdma_info->dev); + + kfree(p_rdma_info); +} + +static void qed_rdma_free(struct qed_hwfn *p_hwfn) +{ + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Freeing RDMA\n"); + + qed_rdma_resc_free(p_hwfn); +} + +static void qed_rdma_get_guid(struct qed_hwfn *p_hwfn, u8 *guid) +{ + guid[0] = p_hwfn->hw_info.hw_mac_addr[0] ^ 2; + guid[1] = p_hwfn->hw_info.hw_mac_addr[1]; + guid[2] = p_hwfn->hw_info.hw_mac_addr[2]; + guid[3] = 0xff; + guid[4] = 0xfe; + guid[5] = p_hwfn->hw_info.hw_mac_addr[3]; + guid[6] = p_hwfn->hw_info.hw_mac_addr[4]; + guid[7] = p_hwfn->hw_info.hw_mac_addr[5]; +} + +static void qed_rdma_init_events(struct qed_hwfn *p_hwfn, + struct qed_rdma_start_in_params *params) +{ + struct qed_rdma_events *events; + + events = &p_hwfn->p_rdma_info->events; + + events->unaffiliated_event = params->events->unaffiliated_event; + events->affiliated_event = params->events->affiliated_event; + events->context = params->events->context; +} + +static void qed_rdma_init_devinfo(struct qed_hwfn *p_hwfn, + struct qed_rdma_start_in_params *params) +{ + struct qed_rdma_device *dev = p_hwfn->p_rdma_info->dev; + struct qed_dev *cdev = p_hwfn->cdev; + u32 pci_status_control; + u32 num_qps; + + /* Vendor specific information */ + dev->vendor_id = cdev->vendor_id; + dev->vendor_part_id = cdev->device_id; + dev->hw_ver = 0; + dev->fw_ver = (FW_MAJOR_VERSION << 24) | (FW_MINOR_VERSION << 16) | + (FW_REVISION_VERSION << 8) | (FW_ENGINEERING_VERSION); + + qed_rdma_get_guid(p_hwfn, (u8 *)&dev->sys_image_guid); + dev->node_guid = dev->sys_image_guid; + + dev->max_sge = min_t(u32, RDMA_MAX_SGE_PER_SQ_WQE, + RDMA_MAX_SGE_PER_RQ_WQE); + + if (cdev->rdma_max_sge) + dev->max_sge = min_t(u32, cdev->rdma_max_sge, dev->max_sge); + + dev->max_inline = ROCE_REQ_MAX_INLINE_DATA_SIZE; + + dev->max_inline = (cdev->rdma_max_inline) ? + min_t(u32, cdev->rdma_max_inline, dev->max_inline) : + dev->max_inline; + + dev->max_wqe = QED_RDMA_MAX_WQE; + dev->max_cnq = (u8)FEAT_NUM(p_hwfn, QED_RDMA_CNQ); + + /* The number of QPs may be higher than QED_ROCE_MAX_QPS, because + * it is up-aligned to 16 and then to ILT page size within qed cxt. + * This is OK in terms of ILT but we don't want to configure the FW + * above its abilities + */ + num_qps = ROCE_MAX_QPS; + num_qps = min_t(u64, num_qps, p_hwfn->p_rdma_info->num_qps); + dev->max_qp = num_qps; + + /* CQs uses the same icids that QPs use hence they are limited by the + * number of icids. There are two icids per QP. + */ + dev->max_cq = num_qps * 2; + + /* The number of mrs is smaller by 1 since the first is reserved */ + dev->max_mr = p_hwfn->p_rdma_info->num_mrs - 1; + dev->max_mr_size = QED_RDMA_MAX_MR_SIZE; + + /* The maximum CQE capacity per CQ supported. + * max number of cqes will be in two layer pbl, + * 8 is the pointer size in bytes + * 32 is the size of cq element in bytes + */ + if (params->cq_mode == QED_RDMA_CQ_MODE_32_BITS) + dev->max_cqe = QED_RDMA_MAX_CQE_32_BIT; + else + dev->max_cqe = QED_RDMA_MAX_CQE_16_BIT; + + dev->max_mw = 0; + dev->max_fmr = QED_RDMA_MAX_FMR; + dev->max_mr_mw_fmr_pbl = (PAGE_SIZE / 8) * (PAGE_SIZE / 8); + dev->max_mr_mw_fmr_size = dev->max_mr_mw_fmr_pbl * PAGE_SIZE; + dev->max_pkey = QED_RDMA_MAX_P_KEY; + + dev->max_qp_resp_rd_atomic_resc = RDMA_RING_PAGE_SIZE / + (RDMA_RESP_RD_ATOMIC_ELM_SIZE * 2); + dev->max_qp_req_rd_atomic_resc = RDMA_RING_PAGE_SIZE / + RDMA_REQ_RD_ATOMIC_ELM_SIZE; + dev->max_dev_resp_rd_atomic_resc = dev->max_qp_resp_rd_atomic_resc * + p_hwfn->p_rdma_info->num_qps; + dev->page_size_caps = QED_RDMA_PAGE_SIZE_CAPS; + dev->dev_ack_delay = QED_RDMA_ACK_DELAY; + dev->max_pd = RDMA_MAX_PDS; + dev->max_ah = p_hwfn->p_rdma_info->num_qps; + dev->max_stats_queues = (u8)RESC_NUM(p_hwfn, QED_RDMA_STATS_QUEUE); + + /* Set capablities */ + dev->dev_caps = 0; + SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_RNR_NAK, 1); + SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_PORT_ACTIVE_EVENT, 1); + SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_PORT_CHANGE_EVENT, 1); + SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_RESIZE_CQ, 1); + SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_BASE_MEMORY_EXT, 1); + SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_BASE_QUEUE_EXT, 1); + SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_ZBVA, 1); + SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_LOCAL_INV_FENCE, 1); + + /* Check atomic operations support in PCI configuration space. */ + pci_read_config_dword(cdev->pdev, + cdev->pdev->pcie_cap + PCI_EXP_DEVCTL2, + &pci_status_control); + + if (pci_status_control & PCI_EXP_DEVCTL2_LTR_EN) + SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_ATOMIC_OP, 1); +} + +static void qed_rdma_init_port(struct qed_hwfn *p_hwfn) +{ + struct qed_rdma_port *port = p_hwfn->p_rdma_info->port; + struct qed_rdma_device *dev = p_hwfn->p_rdma_info->dev; + + port->port_state = p_hwfn->mcp_info->link_output.link_up ? + QED_RDMA_PORT_UP : QED_RDMA_PORT_DOWN; + + port->max_msg_size = min_t(u64, + (dev->max_mr_mw_fmr_size * + p_hwfn->cdev->rdma_max_sge), + BIT(31)); + + port->pkey_bad_counter = 0; +} + +static int qed_rdma_init_hw(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) +{ + u32 ll2_ethertype_en; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Initializing HW\n"); + p_hwfn->b_rdma_enabled_in_prs = false; + + qed_wr(p_hwfn, p_ptt, PRS_REG_ROCE_DEST_QP_MAX_PF, 0); + + p_hwfn->rdma_prs_search_reg = PRS_REG_SEARCH_ROCE; + + /* We delay writing to this reg until first cid is allocated. See + * qed_cxt_dynamic_ilt_alloc function for more details + */ + ll2_ethertype_en = qed_rd(p_hwfn, p_ptt, PRS_REG_LIGHT_L2_ETHERTYPE_EN); + qed_wr(p_hwfn, p_ptt, PRS_REG_LIGHT_L2_ETHERTYPE_EN, + (ll2_ethertype_en | 0x01)); + + if (qed_cxt_get_proto_cid_start(p_hwfn, PROTOCOLID_ROCE) % 2) { + DP_NOTICE(p_hwfn, "The first RoCE's cid should be even\n"); + return -EINVAL; + } + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Initializing HW - Done\n"); + return 0; +} + +static int qed_rdma_start_fw(struct qed_hwfn *p_hwfn, + struct qed_rdma_start_in_params *params, + struct qed_ptt *p_ptt) +{ + struct rdma_init_func_ramrod_data *p_ramrod; + struct qed_rdma_cnq_params *p_cnq_pbl_list; + struct rdma_init_func_hdr *p_params_header; + struct rdma_cnq_params *p_cnq_params; + struct qed_sp_init_data init_data; + struct qed_spq_entry *p_ent; + u32 cnq_id, sb_id; + u16 igu_sb_id; + int rc; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Starting FW\n"); + + /* Save the number of cnqs for the function close ramrod */ + p_hwfn->p_rdma_info->num_cnqs = params->desired_cnq; + + /* Get SPQ entry */ + memset(&init_data, 0, sizeof(init_data)); + init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; + init_data.comp_mode = QED_SPQ_MODE_EBLOCK; + + rc = qed_sp_init_request(p_hwfn, &p_ent, RDMA_RAMROD_FUNC_INIT, + p_hwfn->p_rdma_info->proto, &init_data); + if (rc) + return rc; + + p_ramrod = &p_ent->ramrod.roce_init_func.rdma; + + p_params_header = &p_ramrod->params_header; + p_params_header->cnq_start_offset = (u8)RESC_START(p_hwfn, + QED_RDMA_CNQ_RAM); + p_params_header->num_cnqs = params->desired_cnq; + + if (params->cq_mode == QED_RDMA_CQ_MODE_16_BITS) + p_params_header->cq_ring_mode = 1; + else + p_params_header->cq_ring_mode = 0; + + for (cnq_id = 0; cnq_id < params->desired_cnq; cnq_id++) { + sb_id = qed_rdma_get_sb_id(p_hwfn, cnq_id); + igu_sb_id = qed_get_igu_sb_id(p_hwfn, sb_id); + p_ramrod->cnq_params[cnq_id].sb_num = cpu_to_le16(igu_sb_id); + p_cnq_params = &p_ramrod->cnq_params[cnq_id]; + p_cnq_pbl_list = ¶ms->cnq_pbl_list[cnq_id]; + + p_cnq_params->sb_index = p_hwfn->pf_params.rdma_pf_params.gl_pi; + p_cnq_params->num_pbl_pages = p_cnq_pbl_list->num_pbl_pages; + + DMA_REGPAIR_LE(p_cnq_params->pbl_base_addr, + p_cnq_pbl_list->pbl_ptr); + + /* we assume here that cnq_id and qz_offset are the same */ + p_cnq_params->queue_zone_num = + cpu_to_le16(p_hwfn->p_rdma_info->queue_zone_base + + cnq_id); + } + + return qed_spq_post(p_hwfn, p_ent, NULL); +} + +static int qed_rdma_alloc_tid(void *rdma_cxt, u32 *itid) +{ + struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; + int rc; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Allocate TID\n"); + + spin_lock_bh(&p_hwfn->p_rdma_info->lock); + rc = qed_rdma_bmap_alloc_id(p_hwfn, + &p_hwfn->p_rdma_info->tid_map, itid); + spin_unlock_bh(&p_hwfn->p_rdma_info->lock); + if (rc) + goto out; + + rc = qed_cxt_dynamic_ilt_alloc(p_hwfn, QED_ELEM_TASK, *itid); +out: + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Allocate TID - done, rc = %d\n", rc); + return rc; +} + +static int qed_rdma_reserve_lkey(struct qed_hwfn *p_hwfn) +{ + struct qed_rdma_device *dev = p_hwfn->p_rdma_info->dev; + + /* The first DPI is reserved for the Kernel */ + __set_bit(0, p_hwfn->p_rdma_info->dpi_map.bitmap); + + /* Tid 0 will be used as the key for "reserved MR". + * The driver should allocate memory for it so it can be loaded but no + * ramrod should be passed on it. + */ + qed_rdma_alloc_tid(p_hwfn, &dev->reserved_lkey); + if (dev->reserved_lkey != RDMA_RESERVED_LKEY) { + DP_NOTICE(p_hwfn, + "Reserved lkey should be equal to RDMA_RESERVED_LKEY\n"); + return -EINVAL; + } + + return 0; +} + +static int qed_rdma_setup(struct qed_hwfn *p_hwfn, + struct qed_ptt *p_ptt, + struct qed_rdma_start_in_params *params) +{ + int rc; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "RDMA setup\n"); + + spin_lock_init(&p_hwfn->p_rdma_info->lock); + + qed_rdma_init_devinfo(p_hwfn, params); + qed_rdma_init_port(p_hwfn); + qed_rdma_init_events(p_hwfn, params); + + rc = qed_rdma_reserve_lkey(p_hwfn); + if (rc) + return rc; + + rc = qed_rdma_init_hw(p_hwfn, p_ptt); + if (rc) + return rc; + + qed_spq_register_async_cb(p_hwfn, PROTOCOLID_ROCE, + qed_roce_async_event); + + return qed_rdma_start_fw(p_hwfn, params, p_ptt); +} + +void qed_roce_stop(struct qed_hwfn *p_hwfn) +{ + struct qed_bmap *rcid_map = &p_hwfn->p_rdma_info->real_cid_map; + int wait_count = 0; + + /* when destroying a_RoCE QP the control is returned to the user after + * the synchronous part. The asynchronous part may take a little longer. + * We delay for a short while if an async destroy QP is still expected. + * Beyond the added delay we clear the bitmap anyway. + */ + while (bitmap_weight(rcid_map->bitmap, rcid_map->max_count)) { + msleep(100); + if (wait_count++ > 20) { + DP_NOTICE(p_hwfn, "cid bitmap wait timed out\n"); + break; + } + } + qed_spq_unregister_async_cb(p_hwfn, PROTOCOLID_ROCE); +} + +static int qed_rdma_stop(void *rdma_cxt) +{ + struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; + struct rdma_close_func_ramrod_data *p_ramrod; + struct qed_sp_init_data init_data; + struct qed_spq_entry *p_ent; + struct qed_ptt *p_ptt; + u32 ll2_ethertype_en; + int rc = -EBUSY; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "RDMA stop\n"); + + p_ptt = qed_ptt_acquire(p_hwfn); + if (!p_ptt) { + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Failed to acquire PTT\n"); + return rc; + } + + /* Disable RoCE search */ + qed_wr(p_hwfn, p_ptt, p_hwfn->rdma_prs_search_reg, 0); + p_hwfn->b_rdma_enabled_in_prs = false; + + qed_wr(p_hwfn, p_ptt, PRS_REG_ROCE_DEST_QP_MAX_PF, 0); + + ll2_ethertype_en = qed_rd(p_hwfn, p_ptt, PRS_REG_LIGHT_L2_ETHERTYPE_EN); + + qed_wr(p_hwfn, p_ptt, PRS_REG_LIGHT_L2_ETHERTYPE_EN, + (ll2_ethertype_en & 0xFFFE)); + + qed_roce_stop(p_hwfn); + qed_ptt_release(p_hwfn, p_ptt); + + /* Get SPQ entry */ + memset(&init_data, 0, sizeof(init_data)); + init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; + init_data.comp_mode = QED_SPQ_MODE_EBLOCK; + + /* Stop RoCE */ + rc = qed_sp_init_request(p_hwfn, &p_ent, RDMA_RAMROD_FUNC_CLOSE, + p_hwfn->p_rdma_info->proto, &init_data); + if (rc) + goto out; + + p_ramrod = &p_ent->ramrod.rdma_close_func; + + p_ramrod->num_cnqs = p_hwfn->p_rdma_info->num_cnqs; + p_ramrod->cnq_start_offset = (u8)RESC_START(p_hwfn, QED_RDMA_CNQ_RAM); + + rc = qed_spq_post(p_hwfn, p_ent, NULL); + +out: + qed_rdma_free(p_hwfn); + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "RDMA stop done, rc = %d\n", rc); + return rc; +} + +static int qed_rdma_add_user(void *rdma_cxt, + struct qed_rdma_add_user_out_params *out_params) +{ + struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; + u32 dpi_start_offset; + u32 returned_id = 0; + int rc; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Adding User\n"); + + /* Allocate DPI */ + spin_lock_bh(&p_hwfn->p_rdma_info->lock); + rc = qed_rdma_bmap_alloc_id(p_hwfn, &p_hwfn->p_rdma_info->dpi_map, + &returned_id); + spin_unlock_bh(&p_hwfn->p_rdma_info->lock); + + out_params->dpi = (u16)returned_id; + + /* Calculate the corresponding DPI address */ + dpi_start_offset = p_hwfn->dpi_start_offset; + + out_params->dpi_addr = (u64)((u8 __iomem *)p_hwfn->doorbells + + dpi_start_offset + + ((out_params->dpi) * p_hwfn->dpi_size)); + + out_params->dpi_phys_addr = p_hwfn->cdev->db_phys_addr + + dpi_start_offset + + ((out_params->dpi) * p_hwfn->dpi_size); + + out_params->dpi_size = p_hwfn->dpi_size; + out_params->wid_count = p_hwfn->wid_count; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Adding user - done, rc = %d\n", rc); + return rc; +} + +static struct qed_rdma_port *qed_rdma_query_port(void *rdma_cxt) +{ + struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; + struct qed_rdma_port *p_port = p_hwfn->p_rdma_info->port; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "RDMA Query port\n"); + + /* Link may have changed */ + p_port->port_state = p_hwfn->mcp_info->link_output.link_up ? + QED_RDMA_PORT_UP : QED_RDMA_PORT_DOWN; + + p_port->link_speed = p_hwfn->mcp_info->link_output.speed; + + p_port->max_msg_size = RDMA_MAX_DATA_SIZE_IN_WQE; + + return p_port; +} + +static struct qed_rdma_device *qed_rdma_query_device(void *rdma_cxt) +{ + struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Query device\n"); + + /* Return struct with device parameters */ + return p_hwfn->p_rdma_info->dev; +} + +static void qed_rdma_free_tid(void *rdma_cxt, u32 itid) +{ + struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "itid = %08x\n", itid); + + spin_lock_bh(&p_hwfn->p_rdma_info->lock); + qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->tid_map, itid); + spin_unlock_bh(&p_hwfn->p_rdma_info->lock); +} + +static void qed_rdma_cnq_prod_update(void *rdma_cxt, u8 qz_offset, u16 prod) +{ + struct qed_hwfn *p_hwfn; + u16 qz_num; + u32 addr; + + p_hwfn = (struct qed_hwfn *)rdma_cxt; + + if (qz_offset > p_hwfn->p_rdma_info->max_queue_zones) { + DP_NOTICE(p_hwfn, + "queue zone offset %d is too large (max is %d)\n", + qz_offset, p_hwfn->p_rdma_info->max_queue_zones); + return; + } + + qz_num = p_hwfn->p_rdma_info->queue_zone_base + qz_offset; + addr = GTT_BAR0_MAP_REG_USDM_RAM + + USTORM_COMMON_QUEUE_CONS_OFFSET(qz_num); + + REG_WR16(p_hwfn, addr, prod); + + /* keep prod updates ordered */ + wmb(); +} + +static int qed_fill_rdma_dev_info(struct qed_dev *cdev, + struct qed_dev_rdma_info *info) +{ + struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev); + + memset(info, 0, sizeof(*info)); + + info->rdma_type = QED_RDMA_TYPE_ROCE; + info->user_dpm_enabled = (p_hwfn->db_bar_no_edpm == 0); + + qed_fill_dev_info(cdev, &info->common); + + return 0; +} + +static int qed_rdma_get_sb_start(struct qed_dev *cdev) +{ + int feat_num; + + if (cdev->num_hwfns > 1) + feat_num = FEAT_NUM(QED_LEADING_HWFN(cdev), QED_PF_L2_QUE); + else + feat_num = FEAT_NUM(QED_LEADING_HWFN(cdev), QED_PF_L2_QUE) * + cdev->num_hwfns; + + return feat_num; +} + +static int qed_rdma_get_min_cnq_msix(struct qed_dev *cdev) +{ + int n_cnq = FEAT_NUM(QED_LEADING_HWFN(cdev), QED_RDMA_CNQ); + int n_msix = cdev->int_params.rdma_msix_cnt; + + return min_t(int, n_cnq, n_msix); +} + +static int qed_rdma_set_int(struct qed_dev *cdev, u16 cnt) +{ + int limit = 0; + + /* Mark the fastpath as free/used */ + cdev->int_params.fp_initialized = cnt ? true : false; + + if (cdev->int_params.out.int_mode != QED_INT_MODE_MSIX) { + DP_ERR(cdev, + "qed roce supports only MSI-X interrupts (detected %d).\n", + cdev->int_params.out.int_mode); + return -EINVAL; + } else if (cdev->int_params.fp_msix_cnt) { + limit = cdev->int_params.rdma_msix_cnt; + } + + if (!limit) + return -ENOMEM; + + return min_t(int, cnt, limit); +} + +static int qed_rdma_get_int(struct qed_dev *cdev, struct qed_int_info *info) +{ + memset(info, 0, sizeof(*info)); + + if (!cdev->int_params.fp_initialized) { + DP_INFO(cdev, + "Protocol driver requested interrupt information, but its support is not yet configured\n"); + return -EINVAL; + } + + if (cdev->int_params.out.int_mode == QED_INT_MODE_MSIX) { + int msix_base = cdev->int_params.rdma_msix_base; + + info->msix_cnt = cdev->int_params.rdma_msix_cnt; + info->msix = &cdev->int_params.msix_table[msix_base]; + + DP_VERBOSE(cdev, QED_MSG_RDMA, "msix_cnt = %d msix_base=%d\n", + info->msix_cnt, msix_base); + } + + return 0; +} + +static int qed_rdma_alloc_pd(void *rdma_cxt, u16 *pd) +{ + struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; + u32 returned_id; + int rc; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Alloc PD\n"); + + /* Allocates an unused protection domain */ + spin_lock_bh(&p_hwfn->p_rdma_info->lock); + rc = qed_rdma_bmap_alloc_id(p_hwfn, + &p_hwfn->p_rdma_info->pd_map, &returned_id); + spin_unlock_bh(&p_hwfn->p_rdma_info->lock); + + *pd = (u16)returned_id; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Alloc PD - done, rc = %d\n", rc); + return rc; +} + +static void qed_rdma_free_pd(void *rdma_cxt, u16 pd) +{ + struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "pd = %08x\n", pd); + + /* Returns a previously allocated protection domain for reuse */ + spin_lock_bh(&p_hwfn->p_rdma_info->lock); + qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->pd_map, pd); + spin_unlock_bh(&p_hwfn->p_rdma_info->lock); +} + +static enum qed_rdma_toggle_bit +qed_rdma_toggle_bit_create_resize_cq(struct qed_hwfn *p_hwfn, u16 icid) +{ + struct qed_rdma_info *p_info = p_hwfn->p_rdma_info; + enum qed_rdma_toggle_bit toggle_bit; + u32 bmap_id; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", icid); + + /* the function toggle the bit that is related to a given icid + * and returns the new toggle bit's value + */ + bmap_id = icid - qed_cxt_get_proto_cid_start(p_hwfn, p_info->proto); + + spin_lock_bh(&p_info->lock); + toggle_bit = !test_and_change_bit(bmap_id, + p_info->toggle_bits.bitmap); + spin_unlock_bh(&p_info->lock); + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QED_RDMA_TOGGLE_BIT_= %d\n", + toggle_bit); + + return toggle_bit; +} + +static int qed_rdma_create_cq(void *rdma_cxt, + struct qed_rdma_create_cq_in_params *params, + u16 *icid) +{ + struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; + struct qed_rdma_info *p_info = p_hwfn->p_rdma_info; + struct rdma_create_cq_ramrod_data *p_ramrod; + enum qed_rdma_toggle_bit toggle_bit; + struct qed_sp_init_data init_data; + struct qed_spq_entry *p_ent; + u32 returned_id, start_cid; + int rc; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "cq_handle = %08x%08x\n", + params->cq_handle_hi, params->cq_handle_lo); + + /* Allocate icid */ + spin_lock_bh(&p_info->lock); + rc = qed_rdma_bmap_alloc_id(p_hwfn, &p_info->cq_map, &returned_id); + spin_unlock_bh(&p_info->lock); + + if (rc) { + DP_NOTICE(p_hwfn, "Can't create CQ, rc = %d\n", rc); + return rc; + } + + start_cid = qed_cxt_get_proto_cid_start(p_hwfn, + p_info->proto); + *icid = returned_id + start_cid; + + /* Check if icid requires a page allocation */ + rc = qed_cxt_dynamic_ilt_alloc(p_hwfn, QED_ELEM_CXT, *icid); + if (rc) + goto err; + + /* Get SPQ entry */ + memset(&init_data, 0, sizeof(init_data)); + init_data.cid = *icid; + init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; + init_data.comp_mode = QED_SPQ_MODE_EBLOCK; + + /* Send create CQ ramrod */ + rc = qed_sp_init_request(p_hwfn, &p_ent, + RDMA_RAMROD_CREATE_CQ, + p_info->proto, &init_data); + if (rc) + goto err; + + p_ramrod = &p_ent->ramrod.rdma_create_cq; + + p_ramrod->cq_handle.hi = cpu_to_le32(params->cq_handle_hi); + p_ramrod->cq_handle.lo = cpu_to_le32(params->cq_handle_lo); + p_ramrod->dpi = cpu_to_le16(params->dpi); + p_ramrod->is_two_level_pbl = params->pbl_two_level; + p_ramrod->max_cqes = cpu_to_le32(params->cq_size); + DMA_REGPAIR_LE(p_ramrod->pbl_addr, params->pbl_ptr); + p_ramrod->pbl_num_pages = cpu_to_le16(params->pbl_num_pages); + p_ramrod->cnq_id = (u8)RESC_START(p_hwfn, QED_RDMA_CNQ_RAM) + + params->cnq_id; + p_ramrod->int_timeout = params->int_timeout; + + /* toggle the bit for every resize or create cq for a given icid */ + toggle_bit = qed_rdma_toggle_bit_create_resize_cq(p_hwfn, *icid); + + p_ramrod->toggle_bit = toggle_bit; + + rc = qed_spq_post(p_hwfn, p_ent, NULL); + if (rc) { + /* restore toggle bit */ + qed_rdma_toggle_bit_create_resize_cq(p_hwfn, *icid); + goto err; + } + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Created CQ, rc = %d\n", rc); + return rc; + +err: + /* release allocated icid */ + spin_lock_bh(&p_info->lock); + qed_bmap_release_id(p_hwfn, &p_info->cq_map, returned_id); + spin_unlock_bh(&p_info->lock); + DP_NOTICE(p_hwfn, "Create CQ failed, rc = %d\n", rc); + + return rc; +} + +static int +qed_rdma_destroy_cq(void *rdma_cxt, + struct qed_rdma_destroy_cq_in_params *in_params, + struct qed_rdma_destroy_cq_out_params *out_params) +{ + struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; + struct rdma_destroy_cq_output_params *p_ramrod_res; + struct rdma_destroy_cq_ramrod_data *p_ramrod; + struct qed_sp_init_data init_data; + struct qed_spq_entry *p_ent; + dma_addr_t ramrod_res_phys; + enum protocol_type proto; + int rc = -ENOMEM; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", in_params->icid); + + p_ramrod_res = + (struct rdma_destroy_cq_output_params *) + dma_alloc_coherent(&p_hwfn->cdev->pdev->dev, + sizeof(struct rdma_destroy_cq_output_params), + &ramrod_res_phys, GFP_KERNEL); + if (!p_ramrod_res) { + DP_NOTICE(p_hwfn, + "qed destroy cq failed: cannot allocate memory (ramrod)\n"); + return rc; + } + + /* Get SPQ entry */ + memset(&init_data, 0, sizeof(init_data)); + init_data.cid = in_params->icid; + init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; + init_data.comp_mode = QED_SPQ_MODE_EBLOCK; + proto = p_hwfn->p_rdma_info->proto; + /* Send destroy CQ ramrod */ + rc = qed_sp_init_request(p_hwfn, &p_ent, + RDMA_RAMROD_DESTROY_CQ, + proto, &init_data); + if (rc) + goto err; + + p_ramrod = &p_ent->ramrod.rdma_destroy_cq; + DMA_REGPAIR_LE(p_ramrod->output_params_addr, ramrod_res_phys); + + rc = qed_spq_post(p_hwfn, p_ent, NULL); + if (rc) + goto err; + + out_params->num_cq_notif = le16_to_cpu(p_ramrod_res->cnq_num); + + dma_free_coherent(&p_hwfn->cdev->pdev->dev, + sizeof(struct rdma_destroy_cq_output_params), + p_ramrod_res, ramrod_res_phys); + + /* Free icid */ + spin_lock_bh(&p_hwfn->p_rdma_info->lock); + + qed_bmap_release_id(p_hwfn, + &p_hwfn->p_rdma_info->cq_map, + (in_params->icid - + qed_cxt_get_proto_cid_start(p_hwfn, proto))); + + spin_unlock_bh(&p_hwfn->p_rdma_info->lock); + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Destroyed CQ, rc = %d\n", rc); + return rc; + +err: dma_free_coherent(&p_hwfn->cdev->pdev->dev, + sizeof(struct rdma_destroy_cq_output_params), + p_ramrod_res, ramrod_res_phys); + + return rc; +} + +static void qed_rdma_set_fw_mac(u16 *p_fw_mac, u8 *p_qed_mac) +{ + p_fw_mac[0] = cpu_to_le16((p_qed_mac[0] << 8) + p_qed_mac[1]); + p_fw_mac[1] = cpu_to_le16((p_qed_mac[2] << 8) + p_qed_mac[3]); + p_fw_mac[2] = cpu_to_le16((p_qed_mac[4] << 8) + p_qed_mac[5]); +} + +static void qed_rdma_copy_gids(struct qed_rdma_qp *qp, __le32 *src_gid, + __le32 *dst_gid) +{ + u32 i; + + if (qp->roce_mode == ROCE_V2_IPV4) { + /* The IPv4 addresses shall be aligned to the highest word. + * The lower words must be zero. + */ + memset(src_gid, 0, sizeof(union qed_gid)); + memset(dst_gid, 0, sizeof(union qed_gid)); + src_gid[3] = cpu_to_le32(qp->sgid.ipv4_addr); + dst_gid[3] = cpu_to_le32(qp->dgid.ipv4_addr); + } else { + /* GIDs and IPv6 addresses coincide in location and size */ + for (i = 0; i < ARRAY_SIZE(qp->sgid.dwords); i++) { + src_gid[i] = cpu_to_le32(qp->sgid.dwords[i]); + dst_gid[i] = cpu_to_le32(qp->dgid.dwords[i]); + } + } +} + +static enum roce_flavor qed_roce_mode_to_flavor(enum roce_mode roce_mode) +{ + enum roce_flavor flavor; + + switch (roce_mode) { + case ROCE_V1: + flavor = PLAIN_ROCE; + break; + case ROCE_V2_IPV4: + flavor = RROCE_IPV4; + break; + case ROCE_V2_IPV6: + flavor = ROCE_V2_IPV6; + break; + default: + flavor = MAX_ROCE_MODE; + break; + } + return flavor; +} + +void qed_roce_free_cid_pair(struct qed_hwfn *p_hwfn, u16 cid) +{ + spin_lock_bh(&p_hwfn->p_rdma_info->lock); + qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->cid_map, cid); + qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->cid_map, cid + 1); + spin_unlock_bh(&p_hwfn->p_rdma_info->lock); +} + +static int qed_roce_alloc_cid(struct qed_hwfn *p_hwfn, u16 *cid) +{ + struct qed_rdma_info *p_rdma_info = p_hwfn->p_rdma_info; + u32 responder_icid; + u32 requester_icid; + int rc; + + spin_lock_bh(&p_hwfn->p_rdma_info->lock); + rc = qed_rdma_bmap_alloc_id(p_hwfn, &p_rdma_info->cid_map, + &responder_icid); + if (rc) { + spin_unlock_bh(&p_rdma_info->lock); + return rc; + } + + rc = qed_rdma_bmap_alloc_id(p_hwfn, &p_rdma_info->cid_map, + &requester_icid); + + spin_unlock_bh(&p_rdma_info->lock); + if (rc) + goto err; + + /* the two icid's should be adjacent */ + if ((requester_icid - responder_icid) != 1) { + DP_NOTICE(p_hwfn, "Failed to allocate two adjacent qp's'\n"); + rc = -EINVAL; + goto err; + } + + responder_icid += qed_cxt_get_proto_cid_start(p_hwfn, + p_rdma_info->proto); + requester_icid += qed_cxt_get_proto_cid_start(p_hwfn, + p_rdma_info->proto); + + /* If these icids require a new ILT line allocate DMA-able context for + * an ILT page + */ + rc = qed_cxt_dynamic_ilt_alloc(p_hwfn, QED_ELEM_CXT, responder_icid); + if (rc) + goto err; + + rc = qed_cxt_dynamic_ilt_alloc(p_hwfn, QED_ELEM_CXT, requester_icid); + if (rc) + goto err; + + *cid = (u16)responder_icid; + return rc; + +err: + spin_lock_bh(&p_rdma_info->lock); + qed_bmap_release_id(p_hwfn, &p_rdma_info->cid_map, responder_icid); + qed_bmap_release_id(p_hwfn, &p_rdma_info->cid_map, requester_icid); + + spin_unlock_bh(&p_rdma_info->lock); + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, + "Allocate CID - failed, rc = %d\n", rc); + return rc; +} + +static void qed_roce_set_real_cid(struct qed_hwfn *p_hwfn, u32 cid) +{ + spin_lock_bh(&p_hwfn->p_rdma_info->lock); + qed_bmap_set_id(p_hwfn, &p_hwfn->p_rdma_info->real_cid_map, cid); + spin_unlock_bh(&p_hwfn->p_rdma_info->lock); +} + +static int qed_roce_sp_create_responder(struct qed_hwfn *p_hwfn, + struct qed_rdma_qp *qp) +{ + struct roce_create_qp_resp_ramrod_data *p_ramrod; + struct qed_sp_init_data init_data; + enum roce_flavor roce_flavor; + struct qed_spq_entry *p_ent; + u16 regular_latency_queue; + enum protocol_type proto; + int rc; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid); + + /* Allocate DMA-able memory for IRQ */ + qp->irq_num_pages = 1; + qp->irq = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev, + RDMA_RING_PAGE_SIZE, + &qp->irq_phys_addr, GFP_KERNEL); + if (!qp->irq) { + rc = -ENOMEM; + DP_NOTICE(p_hwfn, + "qed create responder failed: cannot allocate memory (irq). rc = %d\n", + rc); + return rc; + } + + /* Get SPQ entry */ + memset(&init_data, 0, sizeof(init_data)); + init_data.cid = qp->icid; + init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; + init_data.comp_mode = QED_SPQ_MODE_EBLOCK; + + rc = qed_sp_init_request(p_hwfn, &p_ent, ROCE_RAMROD_CREATE_QP, + PROTOCOLID_ROCE, &init_data); + if (rc) + goto err; + + p_ramrod = &p_ent->ramrod.roce_create_qp_resp; + + p_ramrod->flags = 0; + + roce_flavor = qed_roce_mode_to_flavor(qp->roce_mode); + SET_FIELD(p_ramrod->flags, + ROCE_CREATE_QP_RESP_RAMROD_DATA_ROCE_FLAVOR, roce_flavor); + + SET_FIELD(p_ramrod->flags, + ROCE_CREATE_QP_RESP_RAMROD_DATA_RDMA_RD_EN, + qp->incoming_rdma_read_en); + + SET_FIELD(p_ramrod->flags, + ROCE_CREATE_QP_RESP_RAMROD_DATA_RDMA_WR_EN, + qp->incoming_rdma_write_en); + + SET_FIELD(p_ramrod->flags, + ROCE_CREATE_QP_RESP_RAMROD_DATA_ATOMIC_EN, + qp->incoming_atomic_en); + + SET_FIELD(p_ramrod->flags, + ROCE_CREATE_QP_RESP_RAMROD_DATA_E2E_FLOW_CONTROL_EN, + qp->e2e_flow_control_en); + + SET_FIELD(p_ramrod->flags, + ROCE_CREATE_QP_RESP_RAMROD_DATA_SRQ_FLG, qp->use_srq); + + SET_FIELD(p_ramrod->flags, + ROCE_CREATE_QP_RESP_RAMROD_DATA_RESERVED_KEY_EN, + qp->fmr_and_reserved_lkey); + + SET_FIELD(p_ramrod->flags, + ROCE_CREATE_QP_RESP_RAMROD_DATA_MIN_RNR_NAK_TIMER, + qp->min_rnr_nak_timer); + + p_ramrod->max_ird = qp->max_rd_atomic_resp; + p_ramrod->traffic_class = qp->traffic_class_tos; + p_ramrod->hop_limit = qp->hop_limit_ttl; + p_ramrod->irq_num_pages = qp->irq_num_pages; + p_ramrod->p_key = cpu_to_le16(qp->pkey); + p_ramrod->flow_label = cpu_to_le32(qp->flow_label); + p_ramrod->dst_qp_id = cpu_to_le32(qp->dest_qp); + p_ramrod->mtu = cpu_to_le16(qp->mtu); + p_ramrod->initial_psn = cpu_to_le32(qp->rq_psn); + p_ramrod->pd = cpu_to_le16(qp->pd); + p_ramrod->rq_num_pages = cpu_to_le16(qp->rq_num_pages); + DMA_REGPAIR_LE(p_ramrod->rq_pbl_addr, qp->rq_pbl_ptr); + DMA_REGPAIR_LE(p_ramrod->irq_pbl_addr, qp->irq_phys_addr); + qed_rdma_copy_gids(qp, p_ramrod->src_gid, p_ramrod->dst_gid); + p_ramrod->qp_handle_for_async.hi = cpu_to_le32(qp->qp_handle_async.hi); + p_ramrod->qp_handle_for_async.lo = cpu_to_le32(qp->qp_handle_async.lo); + p_ramrod->qp_handle_for_cqe.hi = cpu_to_le32(qp->qp_handle.hi); + p_ramrod->qp_handle_for_cqe.lo = cpu_to_le32(qp->qp_handle.lo); + p_ramrod->cq_cid = cpu_to_le32((p_hwfn->hw_info.opaque_fid << 16) | + qp->rq_cq_id); + + regular_latency_queue = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_OFLD); + + p_ramrod->regular_latency_phy_queue = + cpu_to_le16(regular_latency_queue); + p_ramrod->low_latency_phy_queue = + cpu_to_le16(regular_latency_queue); + + p_ramrod->dpi = cpu_to_le16(qp->dpi); + + qed_rdma_set_fw_mac(p_ramrod->remote_mac_addr, qp->remote_mac_addr); + qed_rdma_set_fw_mac(p_ramrod->local_mac_addr, qp->local_mac_addr); + + p_ramrod->udp_src_port = qp->udp_src_port; + p_ramrod->vlan_id = cpu_to_le16(qp->vlan_id); + p_ramrod->srq_id.srq_idx = cpu_to_le16(qp->srq_id); + p_ramrod->srq_id.opaque_fid = cpu_to_le16(p_hwfn->hw_info.opaque_fid); + + p_ramrod->stats_counter_id = RESC_START(p_hwfn, QED_RDMA_STATS_QUEUE) + + qp->stats_queue; + + rc = qed_spq_post(p_hwfn, p_ent, NULL); + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, + "rc = %d regular physical queue = 0x%x\n", rc, + regular_latency_queue); + + if (rc) + goto err; + + qp->resp_offloaded = true; + qp->cq_prod = 0; + + proto = p_hwfn->p_rdma_info->proto; + qed_roce_set_real_cid(p_hwfn, qp->icid - + qed_cxt_get_proto_cid_start(p_hwfn, proto)); + + return rc; + +err: + DP_NOTICE(p_hwfn, "create responder - failed, rc = %d\n", rc); + dma_free_coherent(&p_hwfn->cdev->pdev->dev, + qp->irq_num_pages * RDMA_RING_PAGE_SIZE, + qp->irq, qp->irq_phys_addr); + + return rc; +} + +static int qed_roce_sp_create_requester(struct qed_hwfn *p_hwfn, + struct qed_rdma_qp *qp) +{ + struct roce_create_qp_req_ramrod_data *p_ramrod; + struct qed_sp_init_data init_data; + enum roce_flavor roce_flavor; + struct qed_spq_entry *p_ent; + u16 regular_latency_queue; + enum protocol_type proto; + int rc; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid); + + /* Allocate DMA-able memory for ORQ */ + qp->orq_num_pages = 1; + qp->orq = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev, + RDMA_RING_PAGE_SIZE, + &qp->orq_phys_addr, GFP_KERNEL); + if (!qp->orq) { + rc = -ENOMEM; + DP_NOTICE(p_hwfn, + "qed create requester failed: cannot allocate memory (orq). rc = %d\n", + rc); + return rc; + } + + /* Get SPQ entry */ + memset(&init_data, 0, sizeof(init_data)); + init_data.cid = qp->icid + 1; + init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; + init_data.comp_mode = QED_SPQ_MODE_EBLOCK; + + rc = qed_sp_init_request(p_hwfn, &p_ent, + ROCE_RAMROD_CREATE_QP, + PROTOCOLID_ROCE, &init_data); + if (rc) + goto err; + + p_ramrod = &p_ent->ramrod.roce_create_qp_req; + + p_ramrod->flags = 0; + + roce_flavor = qed_roce_mode_to_flavor(qp->roce_mode); + SET_FIELD(p_ramrod->flags, + ROCE_CREATE_QP_REQ_RAMROD_DATA_ROCE_FLAVOR, roce_flavor); + + SET_FIELD(p_ramrod->flags, + ROCE_CREATE_QP_REQ_RAMROD_DATA_FMR_AND_RESERVED_EN, + qp->fmr_and_reserved_lkey); + + SET_FIELD(p_ramrod->flags, + ROCE_CREATE_QP_REQ_RAMROD_DATA_SIGNALED_COMP, qp->signal_all); + + SET_FIELD(p_ramrod->flags, + ROCE_CREATE_QP_REQ_RAMROD_DATA_ERR_RETRY_CNT, qp->retry_cnt); + + SET_FIELD(p_ramrod->flags, + ROCE_CREATE_QP_REQ_RAMROD_DATA_RNR_NAK_CNT, + qp->rnr_retry_cnt); + + p_ramrod->max_ord = qp->max_rd_atomic_req; + p_ramrod->traffic_class = qp->traffic_class_tos; + p_ramrod->hop_limit = qp->hop_limit_ttl; + p_ramrod->orq_num_pages = qp->orq_num_pages; + p_ramrod->p_key = cpu_to_le16(qp->pkey); + p_ramrod->flow_label = cpu_to_le32(qp->flow_label); + p_ramrod->dst_qp_id = cpu_to_le32(qp->dest_qp); + p_ramrod->ack_timeout_val = cpu_to_le32(qp->ack_timeout); + p_ramrod->mtu = cpu_to_le16(qp->mtu); + p_ramrod->initial_psn = cpu_to_le32(qp->sq_psn); + p_ramrod->pd = cpu_to_le16(qp->pd); + p_ramrod->sq_num_pages = cpu_to_le16(qp->sq_num_pages); + DMA_REGPAIR_LE(p_ramrod->sq_pbl_addr, qp->sq_pbl_ptr); + DMA_REGPAIR_LE(p_ramrod->orq_pbl_addr, qp->orq_phys_addr); + qed_rdma_copy_gids(qp, p_ramrod->src_gid, p_ramrod->dst_gid); + p_ramrod->qp_handle_for_async.hi = cpu_to_le32(qp->qp_handle_async.hi); + p_ramrod->qp_handle_for_async.lo = cpu_to_le32(qp->qp_handle_async.lo); + p_ramrod->qp_handle_for_cqe.hi = cpu_to_le32(qp->qp_handle.hi); + p_ramrod->qp_handle_for_cqe.lo = cpu_to_le32(qp->qp_handle.lo); + p_ramrod->cq_cid = + cpu_to_le32((p_hwfn->hw_info.opaque_fid << 16) | qp->sq_cq_id); + + regular_latency_queue = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_OFLD); + + p_ramrod->regular_latency_phy_queue = + cpu_to_le16(regular_latency_queue); + p_ramrod->low_latency_phy_queue = + cpu_to_le16(regular_latency_queue); + + p_ramrod->dpi = cpu_to_le16(qp->dpi); + + qed_rdma_set_fw_mac(p_ramrod->remote_mac_addr, qp->remote_mac_addr); + qed_rdma_set_fw_mac(p_ramrod->local_mac_addr, qp->local_mac_addr); + + p_ramrod->udp_src_port = qp->udp_src_port; + p_ramrod->vlan_id = cpu_to_le16(qp->vlan_id); + p_ramrod->stats_counter_id = RESC_START(p_hwfn, QED_RDMA_STATS_QUEUE) + + qp->stats_queue; + + rc = qed_spq_post(p_hwfn, p_ent, NULL); + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "rc = %d\n", rc); + + if (rc) + goto err; + + qp->req_offloaded = true; + proto = p_hwfn->p_rdma_info->proto; + qed_roce_set_real_cid(p_hwfn, + qp->icid + 1 - + qed_cxt_get_proto_cid_start(p_hwfn, proto)); + + return rc; + +err: + DP_NOTICE(p_hwfn, "Create requested - failed, rc = %d\n", rc); + dma_free_coherent(&p_hwfn->cdev->pdev->dev, + qp->orq_num_pages * RDMA_RING_PAGE_SIZE, + qp->orq, qp->orq_phys_addr); + return rc; +} + +static int qed_roce_sp_modify_responder(struct qed_hwfn *p_hwfn, + struct qed_rdma_qp *qp, + bool move_to_err, u32 modify_flags) +{ + struct roce_modify_qp_resp_ramrod_data *p_ramrod; + struct qed_sp_init_data init_data; + struct qed_spq_entry *p_ent; + int rc; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid); + + if (move_to_err && !qp->resp_offloaded) + return 0; + + /* Get SPQ entry */ + memset(&init_data, 0, sizeof(init_data)); + init_data.cid = qp->icid; + init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; + init_data.comp_mode = QED_SPQ_MODE_EBLOCK; + + rc = qed_sp_init_request(p_hwfn, &p_ent, + ROCE_EVENT_MODIFY_QP, + PROTOCOLID_ROCE, &init_data); + if (rc) { + DP_NOTICE(p_hwfn, "rc = %d\n", rc); + return rc; + } + + p_ramrod = &p_ent->ramrod.roce_modify_qp_resp; + + p_ramrod->flags = 0; + + SET_FIELD(p_ramrod->flags, + ROCE_MODIFY_QP_RESP_RAMROD_DATA_MOVE_TO_ERR_FLG, move_to_err); + + SET_FIELD(p_ramrod->flags, + ROCE_MODIFY_QP_RESP_RAMROD_DATA_RDMA_RD_EN, + qp->incoming_rdma_read_en); + + SET_FIELD(p_ramrod->flags, + ROCE_MODIFY_QP_RESP_RAMROD_DATA_RDMA_WR_EN, + qp->incoming_rdma_write_en); + + SET_FIELD(p_ramrod->flags, + ROCE_MODIFY_QP_RESP_RAMROD_DATA_ATOMIC_EN, + qp->incoming_atomic_en); + + SET_FIELD(p_ramrod->flags, + ROCE_CREATE_QP_RESP_RAMROD_DATA_E2E_FLOW_CONTROL_EN, + qp->e2e_flow_control_en); + + SET_FIELD(p_ramrod->flags, + ROCE_MODIFY_QP_RESP_RAMROD_DATA_RDMA_OPS_EN_FLG, + GET_FIELD(modify_flags, + QED_RDMA_MODIFY_QP_VALID_RDMA_OPS_EN)); + + SET_FIELD(p_ramrod->flags, + ROCE_MODIFY_QP_RESP_RAMROD_DATA_P_KEY_FLG, + GET_FIELD(modify_flags, QED_ROCE_MODIFY_QP_VALID_PKEY)); + + SET_FIELD(p_ramrod->flags, + ROCE_MODIFY_QP_RESP_RAMROD_DATA_ADDRESS_VECTOR_FLG, + GET_FIELD(modify_flags, + QED_ROCE_MODIFY_QP_VALID_ADDRESS_VECTOR)); + + SET_FIELD(p_ramrod->flags, + ROCE_MODIFY_QP_RESP_RAMROD_DATA_MAX_IRD_FLG, + GET_FIELD(modify_flags, + QED_RDMA_MODIFY_QP_VALID_MAX_RD_ATOMIC_RESP)); + + SET_FIELD(p_ramrod->flags, + ROCE_MODIFY_QP_RESP_RAMROD_DATA_MIN_RNR_NAK_TIMER_FLG, + GET_FIELD(modify_flags, + QED_ROCE_MODIFY_QP_VALID_MIN_RNR_NAK_TIMER)); + + p_ramrod->fields = 0; + SET_FIELD(p_ramrod->fields, + ROCE_MODIFY_QP_RESP_RAMROD_DATA_MIN_RNR_NAK_TIMER, + qp->min_rnr_nak_timer); + + p_ramrod->max_ird = qp->max_rd_atomic_resp; + p_ramrod->traffic_class = qp->traffic_class_tos; + p_ramrod->hop_limit = qp->hop_limit_ttl; + p_ramrod->p_key = cpu_to_le16(qp->pkey); + p_ramrod->flow_label = cpu_to_le32(qp->flow_label); + p_ramrod->mtu = cpu_to_le16(qp->mtu); + qed_rdma_copy_gids(qp, p_ramrod->src_gid, p_ramrod->dst_gid); + rc = qed_spq_post(p_hwfn, p_ent, NULL); + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Modify responder, rc = %d\n", rc); + return rc; +} + +static int qed_roce_sp_modify_requester(struct qed_hwfn *p_hwfn, + struct qed_rdma_qp *qp, + bool move_to_sqd, + bool move_to_err, u32 modify_flags) +{ + struct roce_modify_qp_req_ramrod_data *p_ramrod; + struct qed_sp_init_data init_data; + struct qed_spq_entry *p_ent; + int rc; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid); + + if (move_to_err && !(qp->req_offloaded)) + return 0; + + /* Get SPQ entry */ + memset(&init_data, 0, sizeof(init_data)); + init_data.cid = qp->icid + 1; + init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; + init_data.comp_mode = QED_SPQ_MODE_EBLOCK; + + rc = qed_sp_init_request(p_hwfn, &p_ent, + ROCE_EVENT_MODIFY_QP, + PROTOCOLID_ROCE, &init_data); + if (rc) { + DP_NOTICE(p_hwfn, "rc = %d\n", rc); + return rc; + } + + p_ramrod = &p_ent->ramrod.roce_modify_qp_req; + + p_ramrod->flags = 0; + + SET_FIELD(p_ramrod->flags, + ROCE_MODIFY_QP_REQ_RAMROD_DATA_MOVE_TO_ERR_FLG, move_to_err); + + SET_FIELD(p_ramrod->flags, + ROCE_MODIFY_QP_REQ_RAMROD_DATA_MOVE_TO_SQD_FLG, move_to_sqd); + + SET_FIELD(p_ramrod->flags, + ROCE_MODIFY_QP_REQ_RAMROD_DATA_EN_SQD_ASYNC_NOTIFY, + qp->sqd_async); + + SET_FIELD(p_ramrod->flags, + ROCE_MODIFY_QP_REQ_RAMROD_DATA_P_KEY_FLG, + GET_FIELD(modify_flags, QED_ROCE_MODIFY_QP_VALID_PKEY)); + + SET_FIELD(p_ramrod->flags, + ROCE_MODIFY_QP_REQ_RAMROD_DATA_ADDRESS_VECTOR_FLG, + GET_FIELD(modify_flags, + QED_ROCE_MODIFY_QP_VALID_ADDRESS_VECTOR)); + + SET_FIELD(p_ramrod->flags, + ROCE_MODIFY_QP_REQ_RAMROD_DATA_MAX_ORD_FLG, + GET_FIELD(modify_flags, + QED_RDMA_MODIFY_QP_VALID_MAX_RD_ATOMIC_REQ)); + + SET_FIELD(p_ramrod->flags, + ROCE_MODIFY_QP_REQ_RAMROD_DATA_RNR_NAK_CNT_FLG, + GET_FIELD(modify_flags, + QED_ROCE_MODIFY_QP_VALID_RNR_RETRY_CNT)); + + SET_FIELD(p_ramrod->flags, + ROCE_MODIFY_QP_REQ_RAMROD_DATA_ERR_RETRY_CNT_FLG, + GET_FIELD(modify_flags, QED_ROCE_MODIFY_QP_VALID_RETRY_CNT)); + + SET_FIELD(p_ramrod->flags, + ROCE_MODIFY_QP_REQ_RAMROD_DATA_ACK_TIMEOUT_FLG, + GET_FIELD(modify_flags, + QED_ROCE_MODIFY_QP_VALID_ACK_TIMEOUT)); + + p_ramrod->fields = 0; + SET_FIELD(p_ramrod->fields, + ROCE_MODIFY_QP_REQ_RAMROD_DATA_ERR_RETRY_CNT, qp->retry_cnt); + + SET_FIELD(p_ramrod->fields, + ROCE_MODIFY_QP_REQ_RAMROD_DATA_RNR_NAK_CNT, + qp->rnr_retry_cnt); + + p_ramrod->max_ord = qp->max_rd_atomic_req; + p_ramrod->traffic_class = qp->traffic_class_tos; + p_ramrod->hop_limit = qp->hop_limit_ttl; + p_ramrod->p_key = cpu_to_le16(qp->pkey); + p_ramrod->flow_label = cpu_to_le32(qp->flow_label); + p_ramrod->ack_timeout_val = cpu_to_le32(qp->ack_timeout); + p_ramrod->mtu = cpu_to_le16(qp->mtu); + qed_rdma_copy_gids(qp, p_ramrod->src_gid, p_ramrod->dst_gid); + rc = qed_spq_post(p_hwfn, p_ent, NULL); + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Modify requester, rc = %d\n", rc); + return rc; +} + +static int qed_roce_sp_destroy_qp_responder(struct qed_hwfn *p_hwfn, + struct qed_rdma_qp *qp, + u32 *num_invalidated_mw, + u32 *cq_prod) +{ + struct roce_destroy_qp_resp_output_params *p_ramrod_res; + struct roce_destroy_qp_resp_ramrod_data *p_ramrod; + struct qed_sp_init_data init_data; + struct qed_spq_entry *p_ent; + dma_addr_t ramrod_res_phys; + int rc; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid); + + *num_invalidated_mw = 0; + *cq_prod = qp->cq_prod; + + if (!qp->resp_offloaded) { + /* If a responder was never offload, we need to free the cids + * allocated in create_qp as a FW async event will never arrive + */ + u32 cid; + + cid = qp->icid - + qed_cxt_get_proto_cid_start(p_hwfn, + p_hwfn->p_rdma_info->proto); + qed_roce_free_cid_pair(p_hwfn, (u16)cid); + + return 0; + } + + /* Get SPQ entry */ + memset(&init_data, 0, sizeof(init_data)); + init_data.cid = qp->icid; + init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; + init_data.comp_mode = QED_SPQ_MODE_EBLOCK; + + rc = qed_sp_init_request(p_hwfn, &p_ent, + ROCE_RAMROD_DESTROY_QP, + PROTOCOLID_ROCE, &init_data); + if (rc) + return rc; + + p_ramrod = &p_ent->ramrod.roce_destroy_qp_resp; + + p_ramrod_res = (struct roce_destroy_qp_resp_output_params *) + dma_alloc_coherent(&p_hwfn->cdev->pdev->dev, sizeof(*p_ramrod_res), + &ramrod_res_phys, GFP_KERNEL); + + if (!p_ramrod_res) { + rc = -ENOMEM; + DP_NOTICE(p_hwfn, + "qed destroy responder failed: cannot allocate memory (ramrod). rc = %d\n", + rc); + return rc; + } + + DMA_REGPAIR_LE(p_ramrod->output_params_addr, ramrod_res_phys); + + rc = qed_spq_post(p_hwfn, p_ent, NULL); + if (rc) + goto err; + + *num_invalidated_mw = le32_to_cpu(p_ramrod_res->num_invalidated_mw); + *cq_prod = le32_to_cpu(p_ramrod_res->cq_prod); + qp->cq_prod = *cq_prod; + + /* Free IRQ - only if ramrod succeeded, in case FW is still using it */ + dma_free_coherent(&p_hwfn->cdev->pdev->dev, + qp->irq_num_pages * RDMA_RING_PAGE_SIZE, + qp->irq, qp->irq_phys_addr); + + qp->resp_offloaded = false; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Destroy responder, rc = %d\n", rc); + +err: + dma_free_coherent(&p_hwfn->cdev->pdev->dev, + sizeof(struct roce_destroy_qp_resp_output_params), + p_ramrod_res, ramrod_res_phys); + + return rc; +} + +static int qed_roce_sp_destroy_qp_requester(struct qed_hwfn *p_hwfn, + struct qed_rdma_qp *qp, + u32 *num_bound_mw) +{ + struct roce_destroy_qp_req_output_params *p_ramrod_res; + struct roce_destroy_qp_req_ramrod_data *p_ramrod; + struct qed_sp_init_data init_data; + struct qed_spq_entry *p_ent; + dma_addr_t ramrod_res_phys; + int rc = -ENOMEM; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid); + + if (!qp->req_offloaded) + return 0; + + p_ramrod_res = (struct roce_destroy_qp_req_output_params *) + dma_alloc_coherent(&p_hwfn->cdev->pdev->dev, + sizeof(*p_ramrod_res), + &ramrod_res_phys, GFP_KERNEL); + if (!p_ramrod_res) { + DP_NOTICE(p_hwfn, + "qed destroy requester failed: cannot allocate memory (ramrod)\n"); + return rc; + } + + /* Get SPQ entry */ + memset(&init_data, 0, sizeof(init_data)); + init_data.cid = qp->icid + 1; + init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; + init_data.comp_mode = QED_SPQ_MODE_EBLOCK; + + rc = qed_sp_init_request(p_hwfn, &p_ent, ROCE_RAMROD_DESTROY_QP, + PROTOCOLID_ROCE, &init_data); + if (rc) + goto err; + + p_ramrod = &p_ent->ramrod.roce_destroy_qp_req; + DMA_REGPAIR_LE(p_ramrod->output_params_addr, ramrod_res_phys); + + rc = qed_spq_post(p_hwfn, p_ent, NULL); + if (rc) + goto err; + + *num_bound_mw = le32_to_cpu(p_ramrod_res->num_bound_mw); + + /* Free ORQ - only if ramrod succeeded, in case FW is still using it */ + dma_free_coherent(&p_hwfn->cdev->pdev->dev, + qp->orq_num_pages * RDMA_RING_PAGE_SIZE, + qp->orq, qp->orq_phys_addr); + + qp->req_offloaded = false; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Destroy requester, rc = %d\n", rc); + +err: + dma_free_coherent(&p_hwfn->cdev->pdev->dev, sizeof(*p_ramrod_res), + p_ramrod_res, ramrod_res_phys); + + return rc; +} + +static int qed_roce_query_qp(struct qed_hwfn *p_hwfn, + struct qed_rdma_qp *qp, + struct qed_rdma_query_qp_out_params *out_params) +{ + struct roce_query_qp_resp_output_params *p_resp_ramrod_res; + struct roce_query_qp_req_output_params *p_req_ramrod_res; + struct roce_query_qp_resp_ramrod_data *p_resp_ramrod; + struct roce_query_qp_req_ramrod_data *p_req_ramrod; + struct qed_sp_init_data init_data; + dma_addr_t resp_ramrod_res_phys; + dma_addr_t req_ramrod_res_phys; + struct qed_spq_entry *p_ent; + bool rq_err_state; + bool sq_err_state; + bool sq_draining; + int rc = -ENOMEM; + + if ((!(qp->resp_offloaded)) && (!(qp->req_offloaded))) { + /* We can't send ramrod to the fw since this qp wasn't offloaded + * to the fw yet + */ + out_params->draining = false; + out_params->rq_psn = qp->rq_psn; + out_params->sq_psn = qp->sq_psn; + out_params->state = qp->cur_state; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "No QPs as no offload\n"); + return 0; + } + + if (!(qp->resp_offloaded)) { + DP_NOTICE(p_hwfn, + "The responder's qp should be offloded before requester's\n"); + return -EINVAL; + } + + /* Send a query responder ramrod to FW to get RQ-PSN and state */ + p_resp_ramrod_res = (struct roce_query_qp_resp_output_params *) + dma_alloc_coherent(&p_hwfn->cdev->pdev->dev, + sizeof(*p_resp_ramrod_res), + &resp_ramrod_res_phys, GFP_KERNEL); + if (!p_resp_ramrod_res) { + DP_NOTICE(p_hwfn, + "qed query qp failed: cannot allocate memory (ramrod)\n"); + return rc; + } + + /* Get SPQ entry */ + memset(&init_data, 0, sizeof(init_data)); + init_data.cid = qp->icid; + init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; + init_data.comp_mode = QED_SPQ_MODE_EBLOCK; + rc = qed_sp_init_request(p_hwfn, &p_ent, ROCE_RAMROD_QUERY_QP, + PROTOCOLID_ROCE, &init_data); + if (rc) + goto err_resp; + + p_resp_ramrod = &p_ent->ramrod.roce_query_qp_resp; + DMA_REGPAIR_LE(p_resp_ramrod->output_params_addr, resp_ramrod_res_phys); + + rc = qed_spq_post(p_hwfn, p_ent, NULL); + if (rc) + goto err_resp; + + out_params->rq_psn = le32_to_cpu(p_resp_ramrod_res->psn); + rq_err_state = GET_FIELD(le32_to_cpu(p_resp_ramrod_res->err_flag), + ROCE_QUERY_QP_RESP_OUTPUT_PARAMS_ERROR_FLG); + + dma_free_coherent(&p_hwfn->cdev->pdev->dev, sizeof(*p_resp_ramrod_res), + p_resp_ramrod_res, resp_ramrod_res_phys); + + if (!(qp->req_offloaded)) { + /* Don't send query qp for the requester */ + out_params->sq_psn = qp->sq_psn; + out_params->draining = false; + + if (rq_err_state) + qp->cur_state = QED_ROCE_QP_STATE_ERR; + + out_params->state = qp->cur_state; + + return 0; + } + + /* Send a query requester ramrod to FW to get SQ-PSN and state */ + p_req_ramrod_res = (struct roce_query_qp_req_output_params *) + dma_alloc_coherent(&p_hwfn->cdev->pdev->dev, + sizeof(*p_req_ramrod_res), + &req_ramrod_res_phys, + GFP_KERNEL); + if (!p_req_ramrod_res) { + rc = -ENOMEM; + DP_NOTICE(p_hwfn, + "qed query qp failed: cannot allocate memory (ramrod)\n"); + return rc; + } + + /* Get SPQ entry */ + init_data.cid = qp->icid + 1; + rc = qed_sp_init_request(p_hwfn, &p_ent, ROCE_RAMROD_QUERY_QP, + PROTOCOLID_ROCE, &init_data); + if (rc) + goto err_req; + + p_req_ramrod = &p_ent->ramrod.roce_query_qp_req; + DMA_REGPAIR_LE(p_req_ramrod->output_params_addr, req_ramrod_res_phys); + + rc = qed_spq_post(p_hwfn, p_ent, NULL); + if (rc) + goto err_req; + + out_params->sq_psn = le32_to_cpu(p_req_ramrod_res->psn); + sq_err_state = GET_FIELD(le32_to_cpu(p_req_ramrod_res->flags), + ROCE_QUERY_QP_REQ_OUTPUT_PARAMS_ERR_FLG); + sq_draining = + GET_FIELD(le32_to_cpu(p_req_ramrod_res->flags), + ROCE_QUERY_QP_REQ_OUTPUT_PARAMS_SQ_DRAINING_FLG); + + dma_free_coherent(&p_hwfn->cdev->pdev->dev, sizeof(*p_req_ramrod_res), + p_req_ramrod_res, req_ramrod_res_phys); + + out_params->draining = false; + + if (rq_err_state || sq_err_state) + qp->cur_state = QED_ROCE_QP_STATE_ERR; + else if (sq_draining) + out_params->draining = true; + out_params->state = qp->cur_state; + + return 0; + +err_req: + dma_free_coherent(&p_hwfn->cdev->pdev->dev, sizeof(*p_req_ramrod_res), + p_req_ramrod_res, req_ramrod_res_phys); + return rc; +err_resp: + dma_free_coherent(&p_hwfn->cdev->pdev->dev, sizeof(*p_resp_ramrod_res), + p_resp_ramrod_res, resp_ramrod_res_phys); + return rc; +} + +static int qed_roce_destroy_qp(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp) +{ + u32 num_invalidated_mw = 0; + u32 num_bound_mw = 0; + u32 cq_prod; + int rc; + + /* Destroys the specified QP */ + if ((qp->cur_state != QED_ROCE_QP_STATE_RESET) && + (qp->cur_state != QED_ROCE_QP_STATE_ERR) && + (qp->cur_state != QED_ROCE_QP_STATE_INIT)) { + DP_NOTICE(p_hwfn, + "QP must be in error, reset or init state before destroying it\n"); + return -EINVAL; + } + + if (qp->cur_state != QED_ROCE_QP_STATE_RESET) { + rc = qed_roce_sp_destroy_qp_responder(p_hwfn, qp, + &num_invalidated_mw, + &cq_prod); + if (rc) + return rc; + + /* Send destroy requester ramrod */ + rc = qed_roce_sp_destroy_qp_requester(p_hwfn, qp, + &num_bound_mw); + if (rc) + return rc; + + if (num_invalidated_mw != num_bound_mw) { + DP_NOTICE(p_hwfn, + "number of invalidate memory windows is different from bounded ones\n"); + return -EINVAL; + } + } + + return 0; +} + +static int qed_rdma_query_qp(void *rdma_cxt, + struct qed_rdma_qp *qp, + struct qed_rdma_query_qp_out_params *out_params) +{ + struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; + int rc; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid); + + /* The following fields are filled in from qp and not FW as they can't + * be modified by FW + */ + out_params->mtu = qp->mtu; + out_params->dest_qp = qp->dest_qp; + out_params->incoming_atomic_en = qp->incoming_atomic_en; + out_params->e2e_flow_control_en = qp->e2e_flow_control_en; + out_params->incoming_rdma_read_en = qp->incoming_rdma_read_en; + out_params->incoming_rdma_write_en = qp->incoming_rdma_write_en; + out_params->dgid = qp->dgid; + out_params->flow_label = qp->flow_label; + out_params->hop_limit_ttl = qp->hop_limit_ttl; + out_params->traffic_class_tos = qp->traffic_class_tos; + out_params->timeout = qp->ack_timeout; + out_params->rnr_retry = qp->rnr_retry_cnt; + out_params->retry_cnt = qp->retry_cnt; + out_params->min_rnr_nak_timer = qp->min_rnr_nak_timer; + out_params->pkey_index = 0; + out_params->max_rd_atomic = qp->max_rd_atomic_req; + out_params->max_dest_rd_atomic = qp->max_rd_atomic_resp; + out_params->sqd_async = qp->sqd_async; + + rc = qed_roce_query_qp(p_hwfn, qp, out_params); + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Query QP, rc = %d\n", rc); + return rc; +} + +static int qed_rdma_destroy_qp(void *rdma_cxt, struct qed_rdma_qp *qp) +{ + struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; + int rc = 0; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid); + + rc = qed_roce_destroy_qp(p_hwfn, qp); + + /* free qp params struct */ + kfree(qp); + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QP destroyed\n"); + return rc; +} + +static struct qed_rdma_qp * +qed_rdma_create_qp(void *rdma_cxt, + struct qed_rdma_create_qp_in_params *in_params, + struct qed_rdma_create_qp_out_params *out_params) +{ + struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; + struct qed_rdma_qp *qp; + u8 max_stats_queues; + int rc; + + if (!rdma_cxt || !in_params || !out_params || !p_hwfn->p_rdma_info) { + DP_ERR(p_hwfn->cdev, + "qed roce create qp failed due to NULL entry (rdma_cxt=%p, in=%p, out=%p, roce_info=?\n", + rdma_cxt, in_params, out_params); + return NULL; + } + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, + "qed rdma create qp called with qp_handle = %08x%08x\n", + in_params->qp_handle_hi, in_params->qp_handle_lo); + + /* Some sanity checks... */ + max_stats_queues = p_hwfn->p_rdma_info->dev->max_stats_queues; + if (in_params->stats_queue >= max_stats_queues) { + DP_ERR(p_hwfn->cdev, + "qed rdma create qp failed due to invalid statistics queue %d. maximum is %d\n", + in_params->stats_queue, max_stats_queues); + return NULL; + } + + qp = kzalloc(sizeof(*qp), GFP_KERNEL); + if (!qp) + return NULL; + + rc = qed_roce_alloc_cid(p_hwfn, &qp->icid); + qp->qpid = ((0xFF << 16) | qp->icid); + + DP_INFO(p_hwfn, "ROCE qpid=%x\n", qp->qpid); + + if (rc) { + kfree(qp); + return NULL; + } + + qp->cur_state = QED_ROCE_QP_STATE_RESET; + qp->qp_handle.hi = cpu_to_le32(in_params->qp_handle_hi); + qp->qp_handle.lo = cpu_to_le32(in_params->qp_handle_lo); + qp->qp_handle_async.hi = cpu_to_le32(in_params->qp_handle_async_hi); + qp->qp_handle_async.lo = cpu_to_le32(in_params->qp_handle_async_lo); + qp->use_srq = in_params->use_srq; + qp->signal_all = in_params->signal_all; + qp->fmr_and_reserved_lkey = in_params->fmr_and_reserved_lkey; + qp->pd = in_params->pd; + qp->dpi = in_params->dpi; + qp->sq_cq_id = in_params->sq_cq_id; + qp->sq_num_pages = in_params->sq_num_pages; + qp->sq_pbl_ptr = in_params->sq_pbl_ptr; + qp->rq_cq_id = in_params->rq_cq_id; + qp->rq_num_pages = in_params->rq_num_pages; + qp->rq_pbl_ptr = in_params->rq_pbl_ptr; + qp->srq_id = in_params->srq_id; + qp->req_offloaded = false; + qp->resp_offloaded = false; + qp->e2e_flow_control_en = qp->use_srq ? false : true; + qp->stats_queue = in_params->stats_queue; + + out_params->icid = qp->icid; + out_params->qp_id = qp->qpid; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Create QP, rc = %d\n", rc); + return qp; +} + +static int qed_roce_modify_qp(struct qed_hwfn *p_hwfn, + struct qed_rdma_qp *qp, + enum qed_roce_qp_state prev_state, + struct qed_rdma_modify_qp_in_params *params) +{ + u32 num_invalidated_mw = 0, num_bound_mw = 0; + int rc = 0; + + /* Perform additional operations according to the current state and the + * next state + */ + if (((prev_state == QED_ROCE_QP_STATE_INIT) || + (prev_state == QED_ROCE_QP_STATE_RESET)) && + (qp->cur_state == QED_ROCE_QP_STATE_RTR)) { + /* Init->RTR or Reset->RTR */ + rc = qed_roce_sp_create_responder(p_hwfn, qp); + return rc; + } else if ((prev_state == QED_ROCE_QP_STATE_RTR) && + (qp->cur_state == QED_ROCE_QP_STATE_RTS)) { + /* RTR-> RTS */ + rc = qed_roce_sp_create_requester(p_hwfn, qp); + if (rc) + return rc; + + /* Send modify responder ramrod */ + rc = qed_roce_sp_modify_responder(p_hwfn, qp, false, + params->modify_flags); + return rc; + } else if ((prev_state == QED_ROCE_QP_STATE_RTS) && + (qp->cur_state == QED_ROCE_QP_STATE_RTS)) { + /* RTS->RTS */ + rc = qed_roce_sp_modify_responder(p_hwfn, qp, false, + params->modify_flags); + if (rc) + return rc; + + rc = qed_roce_sp_modify_requester(p_hwfn, qp, false, false, + params->modify_flags); + return rc; + } else if ((prev_state == QED_ROCE_QP_STATE_RTS) && + (qp->cur_state == QED_ROCE_QP_STATE_SQD)) { + /* RTS->SQD */ + rc = qed_roce_sp_modify_requester(p_hwfn, qp, true, false, + params->modify_flags); + return rc; + } else if ((prev_state == QED_ROCE_QP_STATE_SQD) && + (qp->cur_state == QED_ROCE_QP_STATE_SQD)) { + /* SQD->SQD */ + rc = qed_roce_sp_modify_responder(p_hwfn, qp, false, + params->modify_flags); + if (rc) + return rc; + + rc = qed_roce_sp_modify_requester(p_hwfn, qp, false, false, + params->modify_flags); + return rc; + } else if ((prev_state == QED_ROCE_QP_STATE_SQD) && + (qp->cur_state == QED_ROCE_QP_STATE_RTS)) { + /* SQD->RTS */ + rc = qed_roce_sp_modify_responder(p_hwfn, qp, false, + params->modify_flags); + if (rc) + return rc; + + rc = qed_roce_sp_modify_requester(p_hwfn, qp, false, false, + params->modify_flags); + + return rc; + } else if (qp->cur_state == QED_ROCE_QP_STATE_ERR) { + /* ->ERR */ + rc = qed_roce_sp_modify_responder(p_hwfn, qp, true, + params->modify_flags); + if (rc) + return rc; + + rc = qed_roce_sp_modify_requester(p_hwfn, qp, false, true, + params->modify_flags); + return rc; + } else if (qp->cur_state == QED_ROCE_QP_STATE_RESET) { + /* Any state -> RESET */ + u32 cq_prod; + + /* Send destroy responder ramrod */ + rc = qed_roce_sp_destroy_qp_responder(p_hwfn, + qp, + &num_invalidated_mw, + &cq_prod); + + if (rc) + return rc; + + qp->cq_prod = cq_prod; + + rc = qed_roce_sp_destroy_qp_requester(p_hwfn, qp, + &num_bound_mw); + + if (num_invalidated_mw != num_bound_mw) { + DP_NOTICE(p_hwfn, + "number of invalidate memory windows is different from bounded ones\n"); + return -EINVAL; + } + } else { + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "0\n"); + } + + return rc; +} + +static int qed_rdma_modify_qp(void *rdma_cxt, + struct qed_rdma_qp *qp, + struct qed_rdma_modify_qp_in_params *params) +{ + struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; + enum qed_roce_qp_state prev_state; + int rc = 0; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x params->new_state=%d\n", + qp->icid, params->new_state); + + if (rc) { + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "rc = %d\n", rc); + return rc; + } + + if (GET_FIELD(params->modify_flags, + QED_RDMA_MODIFY_QP_VALID_RDMA_OPS_EN)) { + qp->incoming_rdma_read_en = params->incoming_rdma_read_en; + qp->incoming_rdma_write_en = params->incoming_rdma_write_en; + qp->incoming_atomic_en = params->incoming_atomic_en; + } + + /* Update QP structure with the updated values */ + if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_ROCE_MODE)) + qp->roce_mode = params->roce_mode; + if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_PKEY)) + qp->pkey = params->pkey; + if (GET_FIELD(params->modify_flags, + QED_ROCE_MODIFY_QP_VALID_E2E_FLOW_CONTROL_EN)) + qp->e2e_flow_control_en = params->e2e_flow_control_en; + if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_DEST_QP)) + qp->dest_qp = params->dest_qp; + if (GET_FIELD(params->modify_flags, + QED_ROCE_MODIFY_QP_VALID_ADDRESS_VECTOR)) { + /* Indicates that the following parameters have changed: + * Traffic class, flow label, hop limit, source GID, + * destination GID, loopback indicator + */ + qp->traffic_class_tos = params->traffic_class_tos; + qp->flow_label = params->flow_label; + qp->hop_limit_ttl = params->hop_limit_ttl; + + qp->sgid = params->sgid; + qp->dgid = params->dgid; + qp->udp_src_port = 0; + qp->vlan_id = params->vlan_id; + qp->mtu = params->mtu; + qp->lb_indication = params->lb_indication; + memcpy((u8 *)&qp->remote_mac_addr[0], + (u8 *)¶ms->remote_mac_addr[0], ETH_ALEN); + if (params->use_local_mac) { + memcpy((u8 *)&qp->local_mac_addr[0], + (u8 *)¶ms->local_mac_addr[0], ETH_ALEN); + } else { + memcpy((u8 *)&qp->local_mac_addr[0], + (u8 *)&p_hwfn->hw_info.hw_mac_addr, ETH_ALEN); + } + } + if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_RQ_PSN)) + qp->rq_psn = params->rq_psn; + if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_SQ_PSN)) + qp->sq_psn = params->sq_psn; + if (GET_FIELD(params->modify_flags, + QED_RDMA_MODIFY_QP_VALID_MAX_RD_ATOMIC_REQ)) + qp->max_rd_atomic_req = params->max_rd_atomic_req; + if (GET_FIELD(params->modify_flags, + QED_RDMA_MODIFY_QP_VALID_MAX_RD_ATOMIC_RESP)) + qp->max_rd_atomic_resp = params->max_rd_atomic_resp; + if (GET_FIELD(params->modify_flags, + QED_ROCE_MODIFY_QP_VALID_ACK_TIMEOUT)) + qp->ack_timeout = params->ack_timeout; + if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_RETRY_CNT)) + qp->retry_cnt = params->retry_cnt; + if (GET_FIELD(params->modify_flags, + QED_ROCE_MODIFY_QP_VALID_RNR_RETRY_CNT)) + qp->rnr_retry_cnt = params->rnr_retry_cnt; + if (GET_FIELD(params->modify_flags, + QED_ROCE_MODIFY_QP_VALID_MIN_RNR_NAK_TIMER)) + qp->min_rnr_nak_timer = params->min_rnr_nak_timer; + + qp->sqd_async = params->sqd_async; + + prev_state = qp->cur_state; + if (GET_FIELD(params->modify_flags, + QED_RDMA_MODIFY_QP_VALID_NEW_STATE)) { + qp->cur_state = params->new_state; + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "qp->cur_state=%d\n", + qp->cur_state); + } + + rc = qed_roce_modify_qp(p_hwfn, qp, prev_state, params); + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Modify QP, rc = %d\n", rc); + return rc; +} + +static int +qed_rdma_register_tid(void *rdma_cxt, + struct qed_rdma_register_tid_in_params *params) +{ + struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; + struct rdma_register_tid_ramrod_data *p_ramrod; + struct qed_sp_init_data init_data; + struct qed_spq_entry *p_ent; + enum rdma_tid_type tid_type; + u8 fw_return_code; + int rc; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "itid = %08x\n", params->itid); + + /* Get SPQ entry */ + memset(&init_data, 0, sizeof(init_data)); + init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; + init_data.comp_mode = QED_SPQ_MODE_EBLOCK; + + rc = qed_sp_init_request(p_hwfn, &p_ent, RDMA_RAMROD_REGISTER_MR, + p_hwfn->p_rdma_info->proto, &init_data); + if (rc) { + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "rc = %d\n", rc); + return rc; + } + + if (p_hwfn->p_rdma_info->last_tid < params->itid) + p_hwfn->p_rdma_info->last_tid = params->itid; + + p_ramrod = &p_ent->ramrod.rdma_register_tid; + + p_ramrod->flags = 0; + SET_FIELD(p_ramrod->flags, + RDMA_REGISTER_TID_RAMROD_DATA_TWO_LEVEL_PBL, + params->pbl_two_level); + + SET_FIELD(p_ramrod->flags, + RDMA_REGISTER_TID_RAMROD_DATA_ZERO_BASED, params->zbva); + + SET_FIELD(p_ramrod->flags, + RDMA_REGISTER_TID_RAMROD_DATA_PHY_MR, params->phy_mr); + + /* Don't initialize D/C field, as it may override other bits. */ + if (!(params->tid_type == QED_RDMA_TID_FMR) && !(params->dma_mr)) + SET_FIELD(p_ramrod->flags, + RDMA_REGISTER_TID_RAMROD_DATA_PAGE_SIZE_LOG, + params->page_size_log - 12); + + SET_FIELD(p_ramrod->flags, + RDMA_REGISTER_TID_RAMROD_DATA_REMOTE_READ, + params->remote_read); + + SET_FIELD(p_ramrod->flags, + RDMA_REGISTER_TID_RAMROD_DATA_REMOTE_WRITE, + params->remote_write); + + SET_FIELD(p_ramrod->flags, + RDMA_REGISTER_TID_RAMROD_DATA_REMOTE_ATOMIC, + params->remote_atomic); + + SET_FIELD(p_ramrod->flags, + RDMA_REGISTER_TID_RAMROD_DATA_LOCAL_WRITE, + params->local_write); + + SET_FIELD(p_ramrod->flags, + RDMA_REGISTER_TID_RAMROD_DATA_LOCAL_READ, params->local_read); + + SET_FIELD(p_ramrod->flags, + RDMA_REGISTER_TID_RAMROD_DATA_ENABLE_MW_BIND, + params->mw_bind); + + SET_FIELD(p_ramrod->flags1, + RDMA_REGISTER_TID_RAMROD_DATA_PBL_PAGE_SIZE_LOG, + params->pbl_page_size_log - 12); + + SET_FIELD(p_ramrod->flags2, + RDMA_REGISTER_TID_RAMROD_DATA_DMA_MR, params->dma_mr); + + switch (params->tid_type) { + case QED_RDMA_TID_REGISTERED_MR: + tid_type = RDMA_TID_REGISTERED_MR; + break; + case QED_RDMA_TID_FMR: + tid_type = RDMA_TID_FMR; + break; + case QED_RDMA_TID_MW_TYPE1: + tid_type = RDMA_TID_MW_TYPE1; + break; + case QED_RDMA_TID_MW_TYPE2A: + tid_type = RDMA_TID_MW_TYPE2A; + break; + default: + rc = -EINVAL; + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "rc = %d\n", rc); + return rc; + } + SET_FIELD(p_ramrod->flags1, + RDMA_REGISTER_TID_RAMROD_DATA_TID_TYPE, tid_type); + + p_ramrod->itid = cpu_to_le32(params->itid); + p_ramrod->key = params->key; + p_ramrod->pd = cpu_to_le16(params->pd); + p_ramrod->length_hi = (u8)(params->length >> 32); + p_ramrod->length_lo = DMA_LO_LE(params->length); + if (params->zbva) { + /* Lower 32 bits of the registered MR address. + * In case of zero based MR, will hold FBO + */ + p_ramrod->va.hi = 0; + p_ramrod->va.lo = cpu_to_le32(params->fbo); + } else { + DMA_REGPAIR_LE(p_ramrod->va, params->vaddr); + } + DMA_REGPAIR_LE(p_ramrod->pbl_base, params->pbl_ptr); + + /* DIF */ + if (params->dif_enabled) { + SET_FIELD(p_ramrod->flags2, + RDMA_REGISTER_TID_RAMROD_DATA_DIF_ON_HOST_FLG, 1); + DMA_REGPAIR_LE(p_ramrod->dif_error_addr, + params->dif_error_addr); + DMA_REGPAIR_LE(p_ramrod->dif_runt_addr, params->dif_runt_addr); + } + + rc = qed_spq_post(p_hwfn, p_ent, &fw_return_code); + if (rc) + return rc; + + if (fw_return_code != RDMA_RETURN_OK) { + DP_NOTICE(p_hwfn, "fw_return_code = %d\n", fw_return_code); + return -EINVAL; + } + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Register TID, rc = %d\n", rc); + return rc; +} + +static int qed_rdma_deregister_tid(void *rdma_cxt, u32 itid) +{ + struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; + struct rdma_deregister_tid_ramrod_data *p_ramrod; + struct qed_sp_init_data init_data; + struct qed_spq_entry *p_ent; + struct qed_ptt *p_ptt; + u8 fw_return_code; + int rc; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "itid = %08x\n", itid); + + /* Get SPQ entry */ + memset(&init_data, 0, sizeof(init_data)); + init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; + init_data.comp_mode = QED_SPQ_MODE_EBLOCK; + + rc = qed_sp_init_request(p_hwfn, &p_ent, RDMA_RAMROD_DEREGISTER_MR, + p_hwfn->p_rdma_info->proto, &init_data); + if (rc) { + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "rc = %d\n", rc); + return rc; + } + + p_ramrod = &p_ent->ramrod.rdma_deregister_tid; + p_ramrod->itid = cpu_to_le32(itid); + + rc = qed_spq_post(p_hwfn, p_ent, &fw_return_code); + if (rc) { + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "rc = %d\n", rc); + return rc; + } + + if (fw_return_code == RDMA_RETURN_DEREGISTER_MR_BAD_STATE_ERR) { + DP_NOTICE(p_hwfn, "fw_return_code = %d\n", fw_return_code); + return -EINVAL; + } else if (fw_return_code == RDMA_RETURN_NIG_DRAIN_REQ) { + /* Bit indicating that the TID is in use and a nig drain is + * required before sending the ramrod again + */ + p_ptt = qed_ptt_acquire(p_hwfn); + if (!p_ptt) { + rc = -EBUSY; + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, + "Failed to acquire PTT\n"); + return rc; + } + + rc = qed_mcp_drain(p_hwfn, p_ptt); + if (rc) { + qed_ptt_release(p_hwfn, p_ptt); + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, + "Drain failed\n"); + return rc; + } + + qed_ptt_release(p_hwfn, p_ptt); + + /* Resend the ramrod */ + rc = qed_sp_init_request(p_hwfn, &p_ent, + RDMA_RAMROD_DEREGISTER_MR, + p_hwfn->p_rdma_info->proto, + &init_data); + if (rc) { + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, + "Failed to init sp-element\n"); + return rc; + } + + rc = qed_spq_post(p_hwfn, p_ent, &fw_return_code); + if (rc) { + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, + "Ramrod failed\n"); + return rc; + } + + if (fw_return_code != RDMA_RETURN_OK) { + DP_NOTICE(p_hwfn, "fw_return_code = %d\n", + fw_return_code); + return rc; + } + } + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "De-registered TID, rc = %d\n", rc); + return rc; +} + +static void qed_roce_free_real_icid(struct qed_hwfn *p_hwfn, u16 icid) +{ + struct qed_rdma_info *p_rdma_info = p_hwfn->p_rdma_info; + u32 start_cid, cid, xcid; + + /* an even icid belongs to a responder while an odd icid belongs to a + * requester. The 'cid' received as an input can be either. We calculate + * the "partner" icid and call it xcid. Only if both are free then the + * "cid" map can be cleared. + */ + start_cid = qed_cxt_get_proto_cid_start(p_hwfn, p_rdma_info->proto); + cid = icid - start_cid; + xcid = cid ^ 1; + + spin_lock_bh(&p_rdma_info->lock); + + qed_bmap_release_id(p_hwfn, &p_rdma_info->real_cid_map, cid); + if (qed_bmap_test_id(p_hwfn, &p_rdma_info->real_cid_map, xcid) == 0) { + qed_bmap_release_id(p_hwfn, &p_rdma_info->cid_map, cid); + qed_bmap_release_id(p_hwfn, &p_rdma_info->cid_map, xcid); + } + + spin_unlock_bh(&p_hwfn->p_rdma_info->lock); +} + +static void *qed_rdma_get_rdma_ctx(struct qed_dev *cdev) +{ + return QED_LEADING_HWFN(cdev); +} + +static bool qed_rdma_allocated_qps(struct qed_hwfn *p_hwfn) +{ + bool result; + + /* if rdma info has not been allocated, naturally there are no qps */ + if (!p_hwfn->p_rdma_info) + return false; + + spin_lock_bh(&p_hwfn->p_rdma_info->lock); + if (!p_hwfn->p_rdma_info->cid_map.bitmap) + result = false; + else + result = !qed_bmap_is_empty(&p_hwfn->p_rdma_info->cid_map); + spin_unlock_bh(&p_hwfn->p_rdma_info->lock); + return result; +} + +static void qed_rdma_dpm_conf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) +{ + u32 val; + + val = (p_hwfn->dcbx_no_edpm || p_hwfn->db_bar_no_edpm) ? 0 : 1; + + qed_wr(p_hwfn, p_ptt, DORQ_REG_PF_DPM_ENABLE, val); + DP_VERBOSE(p_hwfn, (QED_MSG_DCB | QED_MSG_RDMA), + "Changing DPM_EN state to %d (DCBX=%d, DB_BAR=%d)\n", + val, p_hwfn->dcbx_no_edpm, p_hwfn->db_bar_no_edpm); +} + +void qed_roce_dpm_dcbx(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) +{ + u8 val; + + /* if any QPs are already active, we want to disable DPM, since their + * context information contains information from before the latest DCBx + * update. Otherwise enable it. + */ + val = qed_rdma_allocated_qps(p_hwfn) ? true : false; + p_hwfn->dcbx_no_edpm = (u8)val; + + qed_rdma_dpm_conf(p_hwfn, p_ptt); +} + +void qed_rdma_dpm_bar(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) +{ + p_hwfn->db_bar_no_edpm = true; + + qed_rdma_dpm_conf(p_hwfn, p_ptt); +} + +static int qed_rdma_start(void *rdma_cxt, + struct qed_rdma_start_in_params *params) +{ + struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; + struct qed_ptt *p_ptt; + int rc = -EBUSY; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, + "desired_cnq = %08x\n", params->desired_cnq); + + p_ptt = qed_ptt_acquire(p_hwfn); + if (!p_ptt) + goto err; + + rc = qed_rdma_alloc(p_hwfn, p_ptt, params); + if (rc) + goto err1; + + rc = qed_rdma_setup(p_hwfn, p_ptt, params); + if (rc) + goto err2; + + qed_ptt_release(p_hwfn, p_ptt); + + return rc; + +err2: + qed_rdma_free(p_hwfn); +err1: + qed_ptt_release(p_hwfn, p_ptt); +err: + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "RDMA start - error, rc = %d\n", rc); + return rc; +} + +static int qed_rdma_init(struct qed_dev *cdev, + struct qed_rdma_start_in_params *params) +{ + return qed_rdma_start(QED_LEADING_HWFN(cdev), params); +} + +static void qed_rdma_remove_user(void *rdma_cxt, u16 dpi) +{ + struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; + + DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "dpi = %08x\n", dpi); + + spin_lock_bh(&p_hwfn->p_rdma_info->lock); + qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->dpi_map, dpi); + spin_unlock_bh(&p_hwfn->p_rdma_info->lock); +} + +static int qed_roce_ll2_set_mac_filter(struct qed_dev *cdev, + u8 *old_mac_address, + u8 *new_mac_address) +{ + struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev); + struct qed_ptt *p_ptt; + int rc = 0; + + p_ptt = qed_ptt_acquire(p_hwfn); + if (!p_ptt) { + DP_ERR(cdev, + "qed roce ll2 mac filter set: failed to acquire PTT\n"); + return -EINVAL; + } + + if (old_mac_address) + qed_llh_remove_mac_filter(p_hwfn, p_ptt, old_mac_address); + if (new_mac_address) + rc = qed_llh_add_mac_filter(p_hwfn, p_ptt, new_mac_address); + + qed_ptt_release(p_hwfn, p_ptt); + + if (rc) + DP_ERR(cdev, + "qed roce ll2 mac filter set: failed to add MAC filter\n"); + + return rc; +} + +static const struct qed_rdma_ops qed_rdma_ops_pass = { + .common = &qed_common_ops_pass, + .fill_dev_info = &qed_fill_rdma_dev_info, + .rdma_get_rdma_ctx = &qed_rdma_get_rdma_ctx, + .rdma_init = &qed_rdma_init, + .rdma_add_user = &qed_rdma_add_user, + .rdma_remove_user = &qed_rdma_remove_user, + .rdma_stop = &qed_rdma_stop, + .rdma_query_port = &qed_rdma_query_port, + .rdma_query_device = &qed_rdma_query_device, + .rdma_get_start_sb = &qed_rdma_get_sb_start, + .rdma_get_rdma_int = &qed_rdma_get_int, + .rdma_set_rdma_int = &qed_rdma_set_int, + .rdma_get_min_cnq_msix = &qed_rdma_get_min_cnq_msix, + .rdma_cnq_prod_update = &qed_rdma_cnq_prod_update, + .rdma_alloc_pd = &qed_rdma_alloc_pd, + .rdma_dealloc_pd = &qed_rdma_free_pd, + .rdma_create_cq = &qed_rdma_create_cq, + .rdma_destroy_cq = &qed_rdma_destroy_cq, + .rdma_create_qp = &qed_rdma_create_qp, + .rdma_modify_qp = &qed_rdma_modify_qp, + .rdma_query_qp = &qed_rdma_query_qp, + .rdma_destroy_qp = &qed_rdma_destroy_qp, + .rdma_alloc_tid = &qed_rdma_alloc_tid, + .rdma_free_tid = &qed_rdma_free_tid, + .rdma_register_tid = &qed_rdma_register_tid, + .rdma_deregister_tid = &qed_rdma_deregister_tid, + .ll2_acquire_connection = &qed_ll2_acquire_connection, + .ll2_establish_connection = &qed_ll2_establish_connection, + .ll2_terminate_connection = &qed_ll2_terminate_connection, + .ll2_release_connection = &qed_ll2_release_connection, + .ll2_post_rx_buffer = &qed_ll2_post_rx_buffer, + .ll2_prepare_tx_packet = &qed_ll2_prepare_tx_packet, + .ll2_set_fragment_of_tx_packet = &qed_ll2_set_fragment_of_tx_packet, + .ll2_set_mac_filter = &qed_roce_ll2_set_mac_filter, + .ll2_get_stats = &qed_ll2_get_stats, +}; + +const struct qed_rdma_ops *qed_get_rdma_ops(void) +{ + return &qed_rdma_ops_pass; +} +EXPORT_SYMBOL(qed_get_rdma_ops); diff --git a/drivers/net/ethernet/qlogic/qed/qed_rdma.h b/drivers/net/ethernet/qlogic/qed/qed_rdma.h new file mode 100644 index 000000000000..b178d9994a45 --- /dev/null +++ b/drivers/net/ethernet/qlogic/qed/qed_rdma.h @@ -0,0 +1,178 @@ +/* QLogic qed NIC Driver + * Copyright (c) 2015-2017 QLogic Corporation + * + * 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 _QED_ROCE_H +#define _QED_ROCE_H +#include +#include +#include +#include +#include +#include +#include +#include +#include "qed.h" +#include "qed_dev_api.h" +#include "qed_hsi.h" +#include "qed_ll2.h" + +#define QED_RDMA_MAX_FMR (RDMA_MAX_TIDS) +#define QED_RDMA_MAX_P_KEY (1) +#define QED_RDMA_MAX_WQE (0x7FFF) +#define QED_RDMA_MAX_SRQ_WQE_ELEM (0x7FFF) +#define QED_RDMA_PAGE_SIZE_CAPS (0xFFFFF000) +#define QED_RDMA_ACK_DELAY (15) +#define QED_RDMA_MAX_MR_SIZE (0x10000000000ULL) +#define QED_RDMA_MAX_CQS (RDMA_MAX_CQS) +#define QED_RDMA_MAX_MRS (RDMA_MAX_TIDS) +/* Add 1 for header element */ +#define QED_RDMA_MAX_SRQ_ELEM_PER_WQE (RDMA_MAX_SGE_PER_RQ_WQE + 1) +#define QED_RDMA_MAX_SGE_PER_SRQ_WQE (RDMA_MAX_SGE_PER_RQ_WQE) +#define QED_RDMA_SRQ_WQE_ELEM_SIZE (16) +#define QED_RDMA_MAX_SRQS (32 * 1024) + +#define QED_RDMA_MAX_CQE_32_BIT (0x7FFFFFFF - 1) +#define QED_RDMA_MAX_CQE_16_BIT (0x7FFF - 1) + +enum qed_rdma_toggle_bit { + QED_RDMA_TOGGLE_BIT_CLEAR = 0, + QED_RDMA_TOGGLE_BIT_SET = 1 +}; + +#define QED_RDMA_MAX_BMAP_NAME (10) +struct qed_bmap { + unsigned long *bitmap; + u32 max_count; + char name[QED_RDMA_MAX_BMAP_NAME]; +}; + +struct qed_rdma_info { + /* spin lock to protect bitmaps */ + spinlock_t lock; + + struct qed_bmap cq_map; + struct qed_bmap pd_map; + struct qed_bmap tid_map; + struct qed_bmap qp_map; + struct qed_bmap srq_map; + struct qed_bmap cid_map; + struct qed_bmap real_cid_map; + struct qed_bmap dpi_map; + struct qed_bmap toggle_bits; + struct qed_rdma_events events; + struct qed_rdma_device *dev; + struct qed_rdma_port *port; + u32 last_tid; + u8 num_cnqs; + u32 num_qps; + u32 num_mrs; + u16 queue_zone_base; + u16 max_queue_zones; + enum protocol_type proto; +}; + +struct qed_rdma_qp { + struct regpair qp_handle; + struct regpair qp_handle_async; + u32 qpid; + u16 icid; + enum qed_roce_qp_state cur_state; + bool use_srq; + bool signal_all; + bool fmr_and_reserved_lkey; + + bool incoming_rdma_read_en; + bool incoming_rdma_write_en; + bool incoming_atomic_en; + bool e2e_flow_control_en; + + u16 pd; + u16 pkey; + u32 dest_qp; + u16 mtu; + u16 srq_id; + u8 traffic_class_tos; + u8 hop_limit_ttl; + u16 dpi; + u32 flow_label; + bool lb_indication; + u16 vlan_id; + u32 ack_timeout; + u8 retry_cnt; + u8 rnr_retry_cnt; + u8 min_rnr_nak_timer; + bool sqd_async; + union qed_gid sgid; + union qed_gid dgid; + enum roce_mode roce_mode; + u16 udp_src_port; + u8 stats_queue; + + /* requeseter */ + u8 max_rd_atomic_req; + u32 sq_psn; + u16 sq_cq_id; + u16 sq_num_pages; + dma_addr_t sq_pbl_ptr; + void *orq; + dma_addr_t orq_phys_addr; + u8 orq_num_pages; + bool req_offloaded; + + /* responder */ + u8 max_rd_atomic_resp; + u32 rq_psn; + u16 rq_cq_id; + u16 rq_num_pages; + dma_addr_t rq_pbl_ptr; + void *irq; + dma_addr_t irq_phys_addr; + u8 irq_num_pages; + bool resp_offloaded; + u32 cq_prod; + + u8 remote_mac_addr[6]; + u8 local_mac_addr[6]; + + void *shared_queue; + dma_addr_t shared_queue_phys_addr; +}; + +#if IS_ENABLED(CONFIG_QED_RDMA) +void qed_rdma_dpm_bar(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt); +void qed_roce_dpm_dcbx(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt); +#else +static inline void qed_rdma_dpm_bar(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) {} + +static inline void qed_roce_dpm_dcbx(struct qed_hwfn *p_hwfn, + struct qed_ptt *p_ptt) {} +#endif +#endif -- 2.20.1