diff options
Diffstat (limited to 'drivers/infiniband/hw/bnxt_re/qplib_sp.c')
| -rw-r--r-- | drivers/infiniband/hw/bnxt_re/qplib_sp.c | 869 |
1 files changed, 869 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_sp.c b/drivers/infiniband/hw/bnxt_re/qplib_sp.c new file mode 100644 index 000000000..f53d94c81 --- /dev/null +++ b/drivers/infiniband/hw/bnxt_re/qplib_sp.c @@ -0,0 +1,869 @@ +/* + * Broadcom NetXtreme-E RoCE driver. + * + * Copyright (c) 2016 - 2017, Broadcom. All rights reserved. The term + * Broadcom refers to Broadcom Limited and/or its subsidiaries. + * + * 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 + * BSD license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Description: Slow Path Operators + */ + +#define dev_fmt(fmt) "QPLIB: " fmt + +#include <linux/interrupt.h> +#include <linux/spinlock.h> +#include <linux/sched.h> +#include <linux/pci.h> + +#include "roce_hsi.h" + +#include "qplib_res.h" +#include "qplib_rcfw.h" +#include "qplib_sp.h" + +const struct bnxt_qplib_gid bnxt_qplib_gid_zero = {{ 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0 } }; + +/* Device */ + +static void bnxt_qplib_query_version(struct bnxt_qplib_rcfw *rcfw, + char *fw_ver) +{ + struct cmdq_query_version req; + struct creq_query_version_resp resp; + u16 cmd_flags = 0; + int rc = 0; + + RCFW_CMD_PREP(req, QUERY_VERSION, cmd_flags); + + rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, + (void *)&resp, NULL, 0); + if (rc) + return; + fw_ver[0] = resp.fw_maj; + fw_ver[1] = resp.fw_minor; + fw_ver[2] = resp.fw_bld; + fw_ver[3] = resp.fw_rsvd; +} + +int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw, + struct bnxt_qplib_dev_attr *attr, bool vf) +{ + struct cmdq_query_func req; + struct creq_query_func_resp resp; + struct bnxt_qplib_rcfw_sbuf *sbuf; + struct creq_query_func_resp_sb *sb; + u16 cmd_flags = 0; + u32 temp; + u8 *tqm_alloc; + int i, rc = 0; + + RCFW_CMD_PREP(req, QUERY_FUNC, cmd_flags); + + sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb)); + if (!sbuf) { + dev_err(&rcfw->pdev->dev, + "SP: QUERY_FUNC alloc side buffer failed\n"); + return -ENOMEM; + } + + sb = sbuf->sb; + req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS; + rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, + (void *)sbuf, 0); + if (rc) + goto bail; + + /* Extract the context from the side buffer */ + attr->max_qp = le32_to_cpu(sb->max_qp); + /* max_qp value reported by FW for PF doesn't include the QP1 for PF */ + if (!vf) + attr->max_qp += 1; + attr->max_qp_rd_atom = + sb->max_qp_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ? + BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_rd_atom; + attr->max_qp_init_rd_atom = + sb->max_qp_init_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ? + BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_init_rd_atom; + attr->max_qp_wqes = le16_to_cpu(sb->max_qp_wr); + /* + * 128 WQEs needs to be reserved for the HW (8916). Prevent + * reporting the max number + */ + attr->max_qp_wqes -= BNXT_QPLIB_RESERVED_QP_WRS; + attr->max_qp_sges = bnxt_qplib_is_chip_gen_p5(rcfw->res->cctx) ? + 6 : sb->max_sge; + attr->max_cq = le32_to_cpu(sb->max_cq); + attr->max_cq_wqes = le32_to_cpu(sb->max_cqe); + attr->max_cq_sges = attr->max_qp_sges; + attr->max_mr = le32_to_cpu(sb->max_mr); + attr->max_mw = le32_to_cpu(sb->max_mw); + + attr->max_mr_size = le64_to_cpu(sb->max_mr_size); + attr->max_pd = 64 * 1024; + attr->max_raw_ethy_qp = le32_to_cpu(sb->max_raw_eth_qp); + attr->max_ah = le32_to_cpu(sb->max_ah); + + attr->max_srq = le16_to_cpu(sb->max_srq); + attr->max_srq_wqes = le32_to_cpu(sb->max_srq_wr) - 1; + attr->max_srq_sges = sb->max_srq_sge; + attr->max_pkey = le32_to_cpu(sb->max_pkeys); + /* + * Some versions of FW reports more than 0xFFFF. + * Restrict it for now to 0xFFFF to avoid + * reporting trucated value + */ + if (attr->max_pkey > 0xFFFF) { + /* ib_port_attr::pkey_tbl_len is u16 */ + attr->max_pkey = 0xFFFF; + } + + attr->max_inline_data = le32_to_cpu(sb->max_inline_data); + attr->l2_db_size = (sb->l2_db_space_size + 1) * + (0x01 << RCFW_DBR_BASE_PAGE_SHIFT); + attr->max_sgid = BNXT_QPLIB_NUM_GIDS_SUPPORTED; + + bnxt_qplib_query_version(rcfw, attr->fw_ver); + + for (i = 0; i < MAX_TQM_ALLOC_REQ / 4; i++) { + temp = le32_to_cpu(sb->tqm_alloc_reqs[i]); + tqm_alloc = (u8 *)&temp; + attr->tqm_alloc_reqs[i * 4] = *tqm_alloc; + attr->tqm_alloc_reqs[i * 4 + 1] = *(++tqm_alloc); + attr->tqm_alloc_reqs[i * 4 + 2] = *(++tqm_alloc); + attr->tqm_alloc_reqs[i * 4 + 3] = *(++tqm_alloc); + } + + attr->is_atomic = false; +bail: + bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf); + return rc; +} + +int bnxt_qplib_set_func_resources(struct bnxt_qplib_res *res, + struct bnxt_qplib_rcfw *rcfw, + struct bnxt_qplib_ctx *ctx) +{ + struct cmdq_set_func_resources req; + struct creq_set_func_resources_resp resp; + u16 cmd_flags = 0; + int rc = 0; + + RCFW_CMD_PREP(req, SET_FUNC_RESOURCES, cmd_flags); + + req.number_of_qp = cpu_to_le32(ctx->qpc_count); + req.number_of_mrw = cpu_to_le32(ctx->mrw_count); + req.number_of_srq = cpu_to_le32(ctx->srqc_count); + req.number_of_cq = cpu_to_le32(ctx->cq_count); + + req.max_qp_per_vf = cpu_to_le32(ctx->vf_res.max_qp_per_vf); + req.max_mrw_per_vf = cpu_to_le32(ctx->vf_res.max_mrw_per_vf); + req.max_srq_per_vf = cpu_to_le32(ctx->vf_res.max_srq_per_vf); + req.max_cq_per_vf = cpu_to_le32(ctx->vf_res.max_cq_per_vf); + req.max_gid_per_vf = cpu_to_le32(ctx->vf_res.max_gid_per_vf); + + rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, + (void *)&resp, + NULL, 0); + if (rc) { + dev_err(&res->pdev->dev, "Failed to set function resources\n"); + } + return rc; +} + +/* SGID */ +int bnxt_qplib_get_sgid(struct bnxt_qplib_res *res, + struct bnxt_qplib_sgid_tbl *sgid_tbl, int index, + struct bnxt_qplib_gid *gid) +{ + if (index >= sgid_tbl->max) { + dev_err(&res->pdev->dev, + "Index %d exceeded SGID table max (%d)\n", + index, sgid_tbl->max); + return -EINVAL; + } + memcpy(gid, &sgid_tbl->tbl[index].gid, sizeof(*gid)); + return 0; +} + +int bnxt_qplib_del_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl, + struct bnxt_qplib_gid *gid, u16 vlan_id, bool update) +{ + struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl, + struct bnxt_qplib_res, + sgid_tbl); + struct bnxt_qplib_rcfw *rcfw = res->rcfw; + int index; + + if (!sgid_tbl) { + dev_err(&res->pdev->dev, "SGID table not allocated\n"); + return -EINVAL; + } + /* Do we need a sgid_lock here? */ + if (!sgid_tbl->active) { + dev_err(&res->pdev->dev, "SGID table has no active entries\n"); + return -ENOMEM; + } + for (index = 0; index < sgid_tbl->max; index++) { + if (!memcmp(&sgid_tbl->tbl[index].gid, gid, sizeof(*gid)) && + vlan_id == sgid_tbl->tbl[index].vlan_id) + break; + } + if (index == sgid_tbl->max) { + dev_warn(&res->pdev->dev, "GID not found in the SGID table\n"); + return 0; + } + /* Remove GID from the SGID table */ + if (update) { + struct cmdq_delete_gid req; + struct creq_delete_gid_resp resp; + u16 cmd_flags = 0; + int rc; + + RCFW_CMD_PREP(req, DELETE_GID, cmd_flags); + if (sgid_tbl->hw_id[index] == 0xFFFF) { + dev_err(&res->pdev->dev, + "GID entry contains an invalid HW id\n"); + return -EINVAL; + } + req.gid_index = cpu_to_le16(sgid_tbl->hw_id[index]); + rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, + (void *)&resp, NULL, 0); + if (rc) + return rc; + } + memcpy(&sgid_tbl->tbl[index].gid, &bnxt_qplib_gid_zero, + sizeof(bnxt_qplib_gid_zero)); + sgid_tbl->tbl[index].vlan_id = 0xFFFF; + sgid_tbl->vlan[index] = 0; + sgid_tbl->active--; + dev_dbg(&res->pdev->dev, + "SGID deleted hw_id[0x%x] = 0x%x active = 0x%x\n", + index, sgid_tbl->hw_id[index], sgid_tbl->active); + sgid_tbl->hw_id[index] = (u16)-1; + + /* unlock */ + return 0; +} + +int bnxt_qplib_add_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl, + struct bnxt_qplib_gid *gid, u8 *smac, u16 vlan_id, + bool update, u32 *index) +{ + struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl, + struct bnxt_qplib_res, + sgid_tbl); + struct bnxt_qplib_rcfw *rcfw = res->rcfw; + int i, free_idx; + + if (!sgid_tbl) { + dev_err(&res->pdev->dev, "SGID table not allocated\n"); + return -EINVAL; + } + /* Do we need a sgid_lock here? */ + if (sgid_tbl->active == sgid_tbl->max) { + dev_err(&res->pdev->dev, "SGID table is full\n"); + return -ENOMEM; + } + free_idx = sgid_tbl->max; + for (i = 0; i < sgid_tbl->max; i++) { + if (!memcmp(&sgid_tbl->tbl[i], gid, sizeof(*gid)) && + sgid_tbl->tbl[i].vlan_id == vlan_id) { + dev_dbg(&res->pdev->dev, + "SGID entry already exist in entry %d!\n", i); + *index = i; + return -EALREADY; + } else if (!memcmp(&sgid_tbl->tbl[i], &bnxt_qplib_gid_zero, + sizeof(bnxt_qplib_gid_zero)) && + free_idx == sgid_tbl->max) { + free_idx = i; + } + } + if (free_idx == sgid_tbl->max) { + dev_err(&res->pdev->dev, + "SGID table is FULL but count is not MAX??\n"); + return -ENOMEM; + } + if (update) { + struct cmdq_add_gid req; + struct creq_add_gid_resp resp; + u16 cmd_flags = 0; + int rc; + + RCFW_CMD_PREP(req, ADD_GID, cmd_flags); + + req.gid[0] = cpu_to_be32(((u32 *)gid->data)[3]); + req.gid[1] = cpu_to_be32(((u32 *)gid->data)[2]); + req.gid[2] = cpu_to_be32(((u32 *)gid->data)[1]); + req.gid[3] = cpu_to_be32(((u32 *)gid->data)[0]); + /* + * driver should ensure that all RoCE traffic is always VLAN + * tagged if RoCE traffic is running on non-zero VLAN ID or + * RoCE traffic is running on non-zero Priority. + */ + if ((vlan_id != 0xFFFF) || res->prio) { + if (vlan_id != 0xFFFF) + req.vlan = cpu_to_le16 + (vlan_id & CMDQ_ADD_GID_VLAN_VLAN_ID_MASK); + req.vlan |= cpu_to_le16 + (CMDQ_ADD_GID_VLAN_TPID_TPID_8100 | + CMDQ_ADD_GID_VLAN_VLAN_EN); + } + + /* MAC in network format */ + req.src_mac[0] = cpu_to_be16(((u16 *)smac)[0]); + req.src_mac[1] = cpu_to_be16(((u16 *)smac)[1]); + req.src_mac[2] = cpu_to_be16(((u16 *)smac)[2]); + + rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, + (void *)&resp, NULL, 0); + if (rc) + return rc; + sgid_tbl->hw_id[free_idx] = le32_to_cpu(resp.xid); + } + /* Add GID to the sgid_tbl */ + memcpy(&sgid_tbl->tbl[free_idx], gid, sizeof(*gid)); + sgid_tbl->tbl[free_idx].vlan_id = vlan_id; + sgid_tbl->active++; + if (vlan_id != 0xFFFF) + sgid_tbl->vlan[free_idx] = 1; + + dev_dbg(&res->pdev->dev, + "SGID added hw_id[0x%x] = 0x%x active = 0x%x\n", + free_idx, sgid_tbl->hw_id[free_idx], sgid_tbl->active); + + *index = free_idx; + /* unlock */ + return 0; +} + +int bnxt_qplib_update_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl, + struct bnxt_qplib_gid *gid, u16 gid_idx, + u8 *smac) +{ + struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl, + struct bnxt_qplib_res, + sgid_tbl); + struct bnxt_qplib_rcfw *rcfw = res->rcfw; + struct creq_modify_gid_resp resp; + struct cmdq_modify_gid req; + int rc; + u16 cmd_flags = 0; + + RCFW_CMD_PREP(req, MODIFY_GID, cmd_flags); + + req.gid[0] = cpu_to_be32(((u32 *)gid->data)[3]); + req.gid[1] = cpu_to_be32(((u32 *)gid->data)[2]); + req.gid[2] = cpu_to_be32(((u32 *)gid->data)[1]); + req.gid[3] = cpu_to_be32(((u32 *)gid->data)[0]); + if (res->prio) { + req.vlan |= cpu_to_le16 + (CMDQ_ADD_GID_VLAN_TPID_TPID_8100 | + CMDQ_ADD_GID_VLAN_VLAN_EN); + } + + /* MAC in network format */ + req.src_mac[0] = cpu_to_be16(((u16 *)smac)[0]); + req.src_mac[1] = cpu_to_be16(((u16 *)smac)[1]); + req.src_mac[2] = cpu_to_be16(((u16 *)smac)[2]); + + req.gid_index = cpu_to_le16(gid_idx); + + rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, + (void *)&resp, NULL, 0); + return rc; +} + +/* pkeys */ +int bnxt_qplib_get_pkey(struct bnxt_qplib_res *res, + struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 index, + u16 *pkey) +{ + if (index == 0xFFFF) { + *pkey = 0xFFFF; + return 0; + } + if (index >= pkey_tbl->max) { + dev_err(&res->pdev->dev, + "Index %d exceeded PKEY table max (%d)\n", + index, pkey_tbl->max); + return -EINVAL; + } + memcpy(pkey, &pkey_tbl->tbl[index], sizeof(*pkey)); + return 0; +} + +int bnxt_qplib_del_pkey(struct bnxt_qplib_res *res, + struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey, + bool update) +{ + int i, rc = 0; + + if (!pkey_tbl) { + dev_err(&res->pdev->dev, "PKEY table not allocated\n"); + return -EINVAL; + } + + /* Do we need a pkey_lock here? */ + if (!pkey_tbl->active) { + dev_err(&res->pdev->dev, "PKEY table has no active entries\n"); + return -ENOMEM; + } + for (i = 0; i < pkey_tbl->max; i++) { + if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey))) + break; + } + if (i == pkey_tbl->max) { + dev_err(&res->pdev->dev, + "PKEY 0x%04x not found in the pkey table\n", *pkey); + return -ENOMEM; + } + memset(&pkey_tbl->tbl[i], 0, sizeof(*pkey)); + pkey_tbl->active--; + + /* unlock */ + return rc; +} + +int bnxt_qplib_add_pkey(struct bnxt_qplib_res *res, + struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey, + bool update) +{ + int i, free_idx, rc = 0; + + if (!pkey_tbl) { + dev_err(&res->pdev->dev, "PKEY table not allocated\n"); + return -EINVAL; + } + + /* Do we need a pkey_lock here? */ + if (pkey_tbl->active == pkey_tbl->max) { + dev_err(&res->pdev->dev, "PKEY table is full\n"); + return -ENOMEM; + } + free_idx = pkey_tbl->max; + for (i = 0; i < pkey_tbl->max; i++) { + if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey))) + return -EALREADY; + else if (!pkey_tbl->tbl[i] && free_idx == pkey_tbl->max) + free_idx = i; + } + if (free_idx == pkey_tbl->max) { + dev_err(&res->pdev->dev, + "PKEY table is FULL but count is not MAX??\n"); + return -ENOMEM; + } + /* Add PKEY to the pkey_tbl */ + memcpy(&pkey_tbl->tbl[free_idx], pkey, sizeof(*pkey)); + pkey_tbl->active++; + + /* unlock */ + return rc; +} + +/* AH */ +int bnxt_qplib_create_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah, + bool block) +{ + struct bnxt_qplib_rcfw *rcfw = res->rcfw; + struct cmdq_create_ah req; + struct creq_create_ah_resp resp; + u16 cmd_flags = 0; + u32 temp32[4]; + u16 temp16[3]; + int rc; + + RCFW_CMD_PREP(req, CREATE_AH, cmd_flags); + + memcpy(temp32, ah->dgid.data, sizeof(struct bnxt_qplib_gid)); + req.dgid[0] = cpu_to_le32(temp32[0]); + req.dgid[1] = cpu_to_le32(temp32[1]); + req.dgid[2] = cpu_to_le32(temp32[2]); + req.dgid[3] = cpu_to_le32(temp32[3]); + + req.type = ah->nw_type; + req.hop_limit = ah->hop_limit; + req.sgid_index = cpu_to_le16(res->sgid_tbl.hw_id[ah->sgid_index]); + req.dest_vlan_id_flow_label = cpu_to_le32((ah->flow_label & + CMDQ_CREATE_AH_FLOW_LABEL_MASK) | + CMDQ_CREATE_AH_DEST_VLAN_ID_MASK); + req.pd_id = cpu_to_le32(ah->pd->id); + req.traffic_class = ah->traffic_class; + + /* MAC in network format */ + memcpy(temp16, ah->dmac, 6); + req.dest_mac[0] = cpu_to_le16(temp16[0]); + req.dest_mac[1] = cpu_to_le16(temp16[1]); + req.dest_mac[2] = cpu_to_le16(temp16[2]); + + rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, + NULL, block); + if (rc) + return rc; + + ah->id = le32_to_cpu(resp.xid); + return 0; +} + +void bnxt_qplib_destroy_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah, + bool block) +{ + struct bnxt_qplib_rcfw *rcfw = res->rcfw; + struct cmdq_destroy_ah req; + struct creq_destroy_ah_resp resp; + u16 cmd_flags = 0; + + /* Clean up the AH table in the device */ + RCFW_CMD_PREP(req, DESTROY_AH, cmd_flags); + + req.ah_cid = cpu_to_le32(ah->id); + + bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, NULL, + block); +} + +/* MRW */ +int bnxt_qplib_free_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw) +{ + struct bnxt_qplib_rcfw *rcfw = res->rcfw; + struct cmdq_deallocate_key req; + struct creq_deallocate_key_resp resp; + u16 cmd_flags = 0; + int rc; + + if (mrw->lkey == 0xFFFFFFFF) { + dev_info(&res->pdev->dev, "SP: Free a reserved lkey MRW\n"); + return 0; + } + + RCFW_CMD_PREP(req, DEALLOCATE_KEY, cmd_flags); + + req.mrw_flags = mrw->type; + + if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1) || + (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) || + (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B)) + req.key = cpu_to_le32(mrw->rkey); + else + req.key = cpu_to_le32(mrw->lkey); + + rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, + NULL, 0); + if (rc) + return rc; + + /* Free the qplib's MRW memory */ + if (mrw->hwq.max_elements) + bnxt_qplib_free_hwq(res, &mrw->hwq); + + return 0; +} + +int bnxt_qplib_alloc_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw) +{ + struct bnxt_qplib_rcfw *rcfw = res->rcfw; + struct cmdq_allocate_mrw req; + struct creq_allocate_mrw_resp resp; + u16 cmd_flags = 0; + unsigned long tmp; + int rc; + + RCFW_CMD_PREP(req, ALLOCATE_MRW, cmd_flags); + + req.pd_id = cpu_to_le32(mrw->pd->id); + req.mrw_flags = mrw->type; + if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_PMR && + mrw->flags & BNXT_QPLIB_FR_PMR) || + mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A || + mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B) + req.access = CMDQ_ALLOCATE_MRW_ACCESS_CONSUMER_OWNED_KEY; + tmp = (unsigned long)mrw; + req.mrw_handle = cpu_to_le64(tmp); + + rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, + (void *)&resp, NULL, 0); + if (rc) + return rc; + + if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1) || + (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) || + (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B)) + mrw->rkey = le32_to_cpu(resp.xid); + else + mrw->lkey = le32_to_cpu(resp.xid); + return 0; +} + +int bnxt_qplib_dereg_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw, + bool block) +{ + struct bnxt_qplib_rcfw *rcfw = res->rcfw; + struct cmdq_deregister_mr req; + struct creq_deregister_mr_resp resp; + u16 cmd_flags = 0; + int rc; + + RCFW_CMD_PREP(req, DEREGISTER_MR, cmd_flags); + + req.lkey = cpu_to_le32(mrw->lkey); + rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, + (void *)&resp, NULL, block); + if (rc) + return rc; + + /* Free the qplib's MR memory */ + if (mrw->hwq.max_elements) { + mrw->va = 0; + mrw->total_size = 0; + bnxt_qplib_free_hwq(res, &mrw->hwq); + } + + return 0; +} + +int bnxt_qplib_reg_mr(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mr, + struct ib_umem *umem, int num_pbls, u32 buf_pg_size) +{ + struct bnxt_qplib_rcfw *rcfw = res->rcfw; + struct bnxt_qplib_hwq_attr hwq_attr = {}; + struct bnxt_qplib_sg_info sginfo = {}; + struct creq_register_mr_resp resp; + struct cmdq_register_mr req; + u16 cmd_flags = 0, level; + int pages, rc, pg_ptrs; + u32 pg_size; + + if (num_pbls) { + /* Allocate memory for the non-leaf pages to store buf ptrs. + * Non-leaf pages always uses system PAGE_SIZE + */ + pg_ptrs = roundup_pow_of_two(num_pbls); + pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT; + if (!pages) + pages++; + + if (pages > MAX_PBL_LVL_1_PGS) { + dev_err(&res->pdev->dev, + "SP: Reg MR: pages requested (0x%x) exceeded max (0x%x)\n", + pages, MAX_PBL_LVL_1_PGS); + return -ENOMEM; + } + /* Free the hwq if it already exist, must be a rereg */ + if (mr->hwq.max_elements) + bnxt_qplib_free_hwq(res, &mr->hwq); + hwq_attr.res = res; + hwq_attr.depth = pages; + hwq_attr.stride = sizeof(dma_addr_t); + hwq_attr.type = HWQ_TYPE_MR; + hwq_attr.sginfo = &sginfo; + hwq_attr.sginfo->umem = umem; + hwq_attr.sginfo->npages = pages; + hwq_attr.sginfo->pgsize = buf_pg_size; + hwq_attr.sginfo->pgshft = ilog2(buf_pg_size); + rc = bnxt_qplib_alloc_init_hwq(&mr->hwq, &hwq_attr); + if (rc) { + dev_err(&res->pdev->dev, + "SP: Reg MR memory allocation failed\n"); + return -ENOMEM; + } + } + + RCFW_CMD_PREP(req, REGISTER_MR, cmd_flags); + + /* Configure the request */ + if (mr->hwq.level == PBL_LVL_MAX) { + /* No PBL provided, just use system PAGE_SIZE */ + level = 0; + req.pbl = 0; + pg_size = PAGE_SIZE; + } else { + level = mr->hwq.level; + req.pbl = cpu_to_le64(mr->hwq.pbl[PBL_LVL_0].pg_map_arr[0]); + } + pg_size = buf_pg_size ? buf_pg_size : PAGE_SIZE; + req.log2_pg_size_lvl = (level << CMDQ_REGISTER_MR_LVL_SFT) | + ((ilog2(pg_size) << + CMDQ_REGISTER_MR_LOG2_PG_SIZE_SFT) & + CMDQ_REGISTER_MR_LOG2_PG_SIZE_MASK); + req.log2_pbl_pg_size = cpu_to_le16(((ilog2(PAGE_SIZE) << + CMDQ_REGISTER_MR_LOG2_PBL_PG_SIZE_SFT) & + CMDQ_REGISTER_MR_LOG2_PBL_PG_SIZE_MASK)); + req.access = (mr->flags & 0xFFFF); + req.va = cpu_to_le64(mr->va); + req.key = cpu_to_le32(mr->lkey); + req.mr_size = cpu_to_le64(mr->total_size); + + rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, + (void *)&resp, NULL, false); + if (rc) + goto fail; + + return 0; + +fail: + if (mr->hwq.max_elements) + bnxt_qplib_free_hwq(res, &mr->hwq); + return rc; +} + +int bnxt_qplib_alloc_fast_reg_page_list(struct bnxt_qplib_res *res, + struct bnxt_qplib_frpl *frpl, + int max_pg_ptrs) +{ + struct bnxt_qplib_hwq_attr hwq_attr = {}; + struct bnxt_qplib_sg_info sginfo = {}; + int pg_ptrs, pages, rc; + + /* Re-calculate the max to fit the HWQ allocation model */ + pg_ptrs = roundup_pow_of_two(max_pg_ptrs); + pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT; + if (!pages) + pages++; + + if (pages > MAX_PBL_LVL_1_PGS) + return -ENOMEM; + + sginfo.pgsize = PAGE_SIZE; + sginfo.nopte = true; + + hwq_attr.res = res; + hwq_attr.depth = pg_ptrs; + hwq_attr.stride = PAGE_SIZE; + hwq_attr.sginfo = &sginfo; + hwq_attr.type = HWQ_TYPE_CTX; + rc = bnxt_qplib_alloc_init_hwq(&frpl->hwq, &hwq_attr); + if (!rc) + frpl->max_pg_ptrs = pg_ptrs; + + return rc; +} + +int bnxt_qplib_free_fast_reg_page_list(struct bnxt_qplib_res *res, + struct bnxt_qplib_frpl *frpl) +{ + bnxt_qplib_free_hwq(res, &frpl->hwq); + return 0; +} + +int bnxt_qplib_map_tc2cos(struct bnxt_qplib_res *res, u16 *cids) +{ + struct bnxt_qplib_rcfw *rcfw = res->rcfw; + struct cmdq_map_tc_to_cos req; + struct creq_map_tc_to_cos_resp resp; + u16 cmd_flags = 0; + + RCFW_CMD_PREP(req, MAP_TC_TO_COS, cmd_flags); + req.cos0 = cpu_to_le16(cids[0]); + req.cos1 = cpu_to_le16(cids[1]); + + return bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, + NULL, 0); +} + +int bnxt_qplib_get_roce_stats(struct bnxt_qplib_rcfw *rcfw, + struct bnxt_qplib_roce_stats *stats) +{ + struct cmdq_query_roce_stats req; + struct creq_query_roce_stats_resp resp; + struct bnxt_qplib_rcfw_sbuf *sbuf; + struct creq_query_roce_stats_resp_sb *sb; + u16 cmd_flags = 0; + int rc = 0; + + RCFW_CMD_PREP(req, QUERY_ROCE_STATS, cmd_flags); + + sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb)); + if (!sbuf) { + dev_err(&rcfw->pdev->dev, + "SP: QUERY_ROCE_STATS alloc side buffer failed\n"); + return -ENOMEM; + } + + sb = sbuf->sb; + req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS; + rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, + (void *)sbuf, 0); + if (rc) + goto bail; + /* Extract the context from the side buffer */ + stats->to_retransmits = le64_to_cpu(sb->to_retransmits); + stats->seq_err_naks_rcvd = le64_to_cpu(sb->seq_err_naks_rcvd); + stats->max_retry_exceeded = le64_to_cpu(sb->max_retry_exceeded); + stats->rnr_naks_rcvd = le64_to_cpu(sb->rnr_naks_rcvd); + stats->missing_resp = le64_to_cpu(sb->missing_resp); + stats->unrecoverable_err = le64_to_cpu(sb->unrecoverable_err); + stats->bad_resp_err = le64_to_cpu(sb->bad_resp_err); + stats->local_qp_op_err = le64_to_cpu(sb->local_qp_op_err); + stats->local_protection_err = le64_to_cpu(sb->local_protection_err); + stats->mem_mgmt_op_err = le64_to_cpu(sb->mem_mgmt_op_err); + stats->remote_invalid_req_err = le64_to_cpu(sb->remote_invalid_req_err); + stats->remote_access_err = le64_to_cpu(sb->remote_access_err); + stats->remote_op_err = le64_to_cpu(sb->remote_op_err); + stats->dup_req = le64_to_cpu(sb->dup_req); + stats->res_exceed_max = le64_to_cpu(sb->res_exceed_max); + stats->res_length_mismatch = le64_to_cpu(sb->res_length_mismatch); + stats->res_exceeds_wqe = le64_to_cpu(sb->res_exceeds_wqe); + stats->res_opcode_err = le64_to_cpu(sb->res_opcode_err); + stats->res_rx_invalid_rkey = le64_to_cpu(sb->res_rx_invalid_rkey); + stats->res_rx_domain_err = le64_to_cpu(sb->res_rx_domain_err); + stats->res_rx_no_perm = le64_to_cpu(sb->res_rx_no_perm); + stats->res_rx_range_err = le64_to_cpu(sb->res_rx_range_err); + stats->res_tx_invalid_rkey = le64_to_cpu(sb->res_tx_invalid_rkey); + stats->res_tx_domain_err = le64_to_cpu(sb->res_tx_domain_err); + stats->res_tx_no_perm = le64_to_cpu(sb->res_tx_no_perm); + stats->res_tx_range_err = le64_to_cpu(sb->res_tx_range_err); + stats->res_irrq_oflow = le64_to_cpu(sb->res_irrq_oflow); + stats->res_unsup_opcode = le64_to_cpu(sb->res_unsup_opcode); + stats->res_unaligned_atomic = le64_to_cpu(sb->res_unaligned_atomic); + stats->res_rem_inv_err = le64_to_cpu(sb->res_rem_inv_err); + stats->res_mem_error = le64_to_cpu(sb->res_mem_error); + stats->res_srq_err = le64_to_cpu(sb->res_srq_err); + stats->res_cmp_err = le64_to_cpu(sb->res_cmp_err); + stats->res_invalid_dup_rkey = le64_to_cpu(sb->res_invalid_dup_rkey); + stats->res_wqe_format_err = le64_to_cpu(sb->res_wqe_format_err); + stats->res_cq_load_err = le64_to_cpu(sb->res_cq_load_err); + stats->res_srq_load_err = le64_to_cpu(sb->res_srq_load_err); + stats->res_tx_pci_err = le64_to_cpu(sb->res_tx_pci_err); + stats->res_rx_pci_err = le64_to_cpu(sb->res_rx_pci_err); + if (!rcfw->init_oos_stats) { + rcfw->oos_prev = le64_to_cpu(sb->res_oos_drop_count); + rcfw->init_oos_stats = 1; + } else { + stats->res_oos_drop_count += + (le64_to_cpu(sb->res_oos_drop_count) - + rcfw->oos_prev) & BNXT_QPLIB_OOS_COUNT_MASK; + rcfw->oos_prev = le64_to_cpu(sb->res_oos_drop_count); + } + +bail: + bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf); + return rc; +} |