linux/drivers/infiniband/hw/bnxt_re/qplib_sp.c
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   1/*
   2 * Broadcom NetXtreme-E RoCE driver.
   3 *
   4 * Copyright (c) 2016 - 2017, Broadcom. All rights reserved.  The term
   5 * Broadcom refers to Broadcom Limited and/or its subsidiaries.
   6 *
   7 * This software is available to you under a choice of one of two
   8 * licenses.  You may choose to be licensed under the terms of the GNU
   9 * General Public License (GPL) Version 2, available from the file
  10 * COPYING in the main directory of this source tree, or the
  11 * BSD license below:
  12 *
  13 * Redistribution and use in source and binary forms, with or without
  14 * modification, are permitted provided that the following conditions
  15 * are met:
  16 *
  17 * 1. Redistributions of source code must retain the above copyright
  18 *    notice, this list of conditions and the following disclaimer.
  19 * 2. Redistributions in binary form must reproduce the above copyright
  20 *    notice, this list of conditions and the following disclaimer in
  21 *    the documentation and/or other materials provided with the
  22 *    distribution.
  23 *
  24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
  25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  26 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  27 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
  28 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  31 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  32 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
  33 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
  34 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  35 *
  36 * Description: Slow Path Operators
  37 */
  38
  39#define dev_fmt(fmt) "QPLIB: " fmt
  40
  41#include <linux/interrupt.h>
  42#include <linux/spinlock.h>
  43#include <linux/sched.h>
  44#include <linux/pci.h>
  45
  46#include "roce_hsi.h"
  47
  48#include "qplib_res.h"
  49#include "qplib_rcfw.h"
  50#include "qplib_sp.h"
  51
  52const struct bnxt_qplib_gid bnxt_qplib_gid_zero = {{ 0, 0, 0, 0, 0, 0, 0, 0,
  53                                                     0, 0, 0, 0, 0, 0, 0, 0 } };
  54
  55/* Device */
  56
  57static bool bnxt_qplib_is_atomic_cap(struct bnxt_qplib_rcfw *rcfw)
  58{
  59        u16 pcie_ctl2 = 0;
  60
  61        if (!bnxt_qplib_is_chip_gen_p5(rcfw->res->cctx))
  62                return false;
  63
  64        pcie_capability_read_word(rcfw->pdev, PCI_EXP_DEVCTL2, &pcie_ctl2);
  65        return (pcie_ctl2 & PCI_EXP_DEVCTL2_ATOMIC_REQ);
  66}
  67
  68static void bnxt_qplib_query_version(struct bnxt_qplib_rcfw *rcfw,
  69                                     char *fw_ver)
  70{
  71        struct cmdq_query_version req;
  72        struct creq_query_version_resp resp;
  73        u16 cmd_flags = 0;
  74        int rc = 0;
  75
  76        RCFW_CMD_PREP(req, QUERY_VERSION, cmd_flags);
  77
  78        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
  79                                          (void *)&resp, NULL, 0);
  80        if (rc)
  81                return;
  82        fw_ver[0] = resp.fw_maj;
  83        fw_ver[1] = resp.fw_minor;
  84        fw_ver[2] = resp.fw_bld;
  85        fw_ver[3] = resp.fw_rsvd;
  86}
  87
  88int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw,
  89                            struct bnxt_qplib_dev_attr *attr, bool vf)
  90{
  91        struct cmdq_query_func req;
  92        struct creq_query_func_resp resp;
  93        struct bnxt_qplib_rcfw_sbuf *sbuf;
  94        struct creq_query_func_resp_sb *sb;
  95        u16 cmd_flags = 0;
  96        u32 temp;
  97        u8 *tqm_alloc;
  98        int i, rc = 0;
  99
 100        RCFW_CMD_PREP(req, QUERY_FUNC, cmd_flags);
 101
 102        sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb));
 103        if (!sbuf) {
 104                dev_err(&rcfw->pdev->dev,
 105                        "SP: QUERY_FUNC alloc side buffer failed\n");
 106                return -ENOMEM;
 107        }
 108
 109        sb = sbuf->sb;
 110        req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS;
 111        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 112                                          (void *)sbuf, 0);
 113        if (rc)
 114                goto bail;
 115
 116        /* Extract the context from the side buffer */
 117        attr->max_qp = le32_to_cpu(sb->max_qp);
 118        /* max_qp value reported by FW for PF doesn't include the QP1 for PF */
 119        if (!vf)
 120                attr->max_qp += 1;
 121        attr->max_qp_rd_atom =
 122                sb->max_qp_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ?
 123                BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_rd_atom;
 124        attr->max_qp_init_rd_atom =
 125                sb->max_qp_init_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ?
 126                BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_init_rd_atom;
 127        attr->max_qp_wqes = le16_to_cpu(sb->max_qp_wr);
 128        /*
 129         * 128 WQEs needs to be reserved for the HW (8916). Prevent
 130         * reporting the max number
 131         */
 132        attr->max_qp_wqes -= BNXT_QPLIB_RESERVED_QP_WRS + 1;
 133        attr->max_qp_sges = bnxt_qplib_is_chip_gen_p5(rcfw->res->cctx) ?
 134                            6 : sb->max_sge;
 135        attr->max_cq = le32_to_cpu(sb->max_cq);
 136        attr->max_cq_wqes = le32_to_cpu(sb->max_cqe);
 137        attr->max_cq_sges = attr->max_qp_sges;
 138        attr->max_mr = le32_to_cpu(sb->max_mr);
 139        attr->max_mw = le32_to_cpu(sb->max_mw);
 140
 141        attr->max_mr_size = le64_to_cpu(sb->max_mr_size);
 142        attr->max_pd = 64 * 1024;
 143        attr->max_raw_ethy_qp = le32_to_cpu(sb->max_raw_eth_qp);
 144        attr->max_ah = le32_to_cpu(sb->max_ah);
 145
 146        attr->max_srq = le16_to_cpu(sb->max_srq);
 147        attr->max_srq_wqes = le32_to_cpu(sb->max_srq_wr) - 1;
 148        attr->max_srq_sges = sb->max_srq_sge;
 149        attr->max_pkey = 1;
 150        attr->max_inline_data = le32_to_cpu(sb->max_inline_data);
 151        attr->l2_db_size = (sb->l2_db_space_size + 1) *
 152                            (0x01 << RCFW_DBR_BASE_PAGE_SHIFT);
 153        attr->max_sgid = BNXT_QPLIB_NUM_GIDS_SUPPORTED;
 154        attr->dev_cap_flags = le16_to_cpu(sb->dev_cap_flags);
 155
 156        bnxt_qplib_query_version(rcfw, attr->fw_ver);
 157
 158        for (i = 0; i < MAX_TQM_ALLOC_REQ / 4; i++) {
 159                temp = le32_to_cpu(sb->tqm_alloc_reqs[i]);
 160                tqm_alloc = (u8 *)&temp;
 161                attr->tqm_alloc_reqs[i * 4] = *tqm_alloc;
 162                attr->tqm_alloc_reqs[i * 4 + 1] = *(++tqm_alloc);
 163                attr->tqm_alloc_reqs[i * 4 + 2] = *(++tqm_alloc);
 164                attr->tqm_alloc_reqs[i * 4 + 3] = *(++tqm_alloc);
 165        }
 166
 167        attr->is_atomic = bnxt_qplib_is_atomic_cap(rcfw);
 168bail:
 169        bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
 170        return rc;
 171}
 172
 173int bnxt_qplib_set_func_resources(struct bnxt_qplib_res *res,
 174                                  struct bnxt_qplib_rcfw *rcfw,
 175                                  struct bnxt_qplib_ctx *ctx)
 176{
 177        struct cmdq_set_func_resources req;
 178        struct creq_set_func_resources_resp resp;
 179        u16 cmd_flags = 0;
 180        int rc = 0;
 181
 182        RCFW_CMD_PREP(req, SET_FUNC_RESOURCES, cmd_flags);
 183
 184        req.number_of_qp = cpu_to_le32(ctx->qpc_count);
 185        req.number_of_mrw = cpu_to_le32(ctx->mrw_count);
 186        req.number_of_srq =  cpu_to_le32(ctx->srqc_count);
 187        req.number_of_cq = cpu_to_le32(ctx->cq_count);
 188
 189        req.max_qp_per_vf = cpu_to_le32(ctx->vf_res.max_qp_per_vf);
 190        req.max_mrw_per_vf = cpu_to_le32(ctx->vf_res.max_mrw_per_vf);
 191        req.max_srq_per_vf = cpu_to_le32(ctx->vf_res.max_srq_per_vf);
 192        req.max_cq_per_vf = cpu_to_le32(ctx->vf_res.max_cq_per_vf);
 193        req.max_gid_per_vf = cpu_to_le32(ctx->vf_res.max_gid_per_vf);
 194
 195        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 196                                          (void *)&resp,
 197                                          NULL, 0);
 198        if (rc) {
 199                dev_err(&res->pdev->dev, "Failed to set function resources\n");
 200        }
 201        return rc;
 202}
 203
 204/* SGID */
 205int bnxt_qplib_get_sgid(struct bnxt_qplib_res *res,
 206                        struct bnxt_qplib_sgid_tbl *sgid_tbl, int index,
 207                        struct bnxt_qplib_gid *gid)
 208{
 209        if (index >= sgid_tbl->max) {
 210                dev_err(&res->pdev->dev,
 211                        "Index %d exceeded SGID table max (%d)\n",
 212                        index, sgid_tbl->max);
 213                return -EINVAL;
 214        }
 215        memcpy(gid, &sgid_tbl->tbl[index].gid, sizeof(*gid));
 216        return 0;
 217}
 218
 219int bnxt_qplib_del_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
 220                        struct bnxt_qplib_gid *gid, u16 vlan_id, bool update)
 221{
 222        struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
 223                                                   struct bnxt_qplib_res,
 224                                                   sgid_tbl);
 225        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 226        int index;
 227
 228        if (!sgid_tbl) {
 229                dev_err(&res->pdev->dev, "SGID table not allocated\n");
 230                return -EINVAL;
 231        }
 232        /* Do we need a sgid_lock here? */
 233        if (!sgid_tbl->active) {
 234                dev_err(&res->pdev->dev, "SGID table has no active entries\n");
 235                return -ENOMEM;
 236        }
 237        for (index = 0; index < sgid_tbl->max; index++) {
 238                if (!memcmp(&sgid_tbl->tbl[index].gid, gid, sizeof(*gid)) &&
 239                    vlan_id == sgid_tbl->tbl[index].vlan_id)
 240                        break;
 241        }
 242        if (index == sgid_tbl->max) {
 243                dev_warn(&res->pdev->dev, "GID not found in the SGID table\n");
 244                return 0;
 245        }
 246        /* Remove GID from the SGID table */
 247        if (update) {
 248                struct cmdq_delete_gid req;
 249                struct creq_delete_gid_resp resp;
 250                u16 cmd_flags = 0;
 251                int rc;
 252
 253                RCFW_CMD_PREP(req, DELETE_GID, cmd_flags);
 254                if (sgid_tbl->hw_id[index] == 0xFFFF) {
 255                        dev_err(&res->pdev->dev,
 256                                "GID entry contains an invalid HW id\n");
 257                        return -EINVAL;
 258                }
 259                req.gid_index = cpu_to_le16(sgid_tbl->hw_id[index]);
 260                rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 261                                                  (void *)&resp, NULL, 0);
 262                if (rc)
 263                        return rc;
 264        }
 265        memcpy(&sgid_tbl->tbl[index].gid, &bnxt_qplib_gid_zero,
 266               sizeof(bnxt_qplib_gid_zero));
 267        sgid_tbl->tbl[index].vlan_id = 0xFFFF;
 268        sgid_tbl->vlan[index] = 0;
 269        sgid_tbl->active--;
 270        dev_dbg(&res->pdev->dev,
 271                "SGID deleted hw_id[0x%x] = 0x%x active = 0x%x\n",
 272                 index, sgid_tbl->hw_id[index], sgid_tbl->active);
 273        sgid_tbl->hw_id[index] = (u16)-1;
 274
 275        /* unlock */
 276        return 0;
 277}
 278
 279int bnxt_qplib_add_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
 280                        struct bnxt_qplib_gid *gid, const u8 *smac,
 281                        u16 vlan_id, bool update, u32 *index)
 282{
 283        struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
 284                                                   struct bnxt_qplib_res,
 285                                                   sgid_tbl);
 286        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 287        int i, free_idx;
 288
 289        if (!sgid_tbl) {
 290                dev_err(&res->pdev->dev, "SGID table not allocated\n");
 291                return -EINVAL;
 292        }
 293        /* Do we need a sgid_lock here? */
 294        if (sgid_tbl->active == sgid_tbl->max) {
 295                dev_err(&res->pdev->dev, "SGID table is full\n");
 296                return -ENOMEM;
 297        }
 298        free_idx = sgid_tbl->max;
 299        for (i = 0; i < sgid_tbl->max; i++) {
 300                if (!memcmp(&sgid_tbl->tbl[i], gid, sizeof(*gid)) &&
 301                    sgid_tbl->tbl[i].vlan_id == vlan_id) {
 302                        dev_dbg(&res->pdev->dev,
 303                                "SGID entry already exist in entry %d!\n", i);
 304                        *index = i;
 305                        return -EALREADY;
 306                } else if (!memcmp(&sgid_tbl->tbl[i], &bnxt_qplib_gid_zero,
 307                                   sizeof(bnxt_qplib_gid_zero)) &&
 308                           free_idx == sgid_tbl->max) {
 309                        free_idx = i;
 310                }
 311        }
 312        if (free_idx == sgid_tbl->max) {
 313                dev_err(&res->pdev->dev,
 314                        "SGID table is FULL but count is not MAX??\n");
 315                return -ENOMEM;
 316        }
 317        if (update) {
 318                struct cmdq_add_gid req;
 319                struct creq_add_gid_resp resp;
 320                u16 cmd_flags = 0;
 321                int rc;
 322
 323                RCFW_CMD_PREP(req, ADD_GID, cmd_flags);
 324
 325                req.gid[0] = cpu_to_be32(((u32 *)gid->data)[3]);
 326                req.gid[1] = cpu_to_be32(((u32 *)gid->data)[2]);
 327                req.gid[2] = cpu_to_be32(((u32 *)gid->data)[1]);
 328                req.gid[3] = cpu_to_be32(((u32 *)gid->data)[0]);
 329                /*
 330                 * driver should ensure that all RoCE traffic is always VLAN
 331                 * tagged if RoCE traffic is running on non-zero VLAN ID or
 332                 * RoCE traffic is running on non-zero Priority.
 333                 */
 334                if ((vlan_id != 0xFFFF) || res->prio) {
 335                        if (vlan_id != 0xFFFF)
 336                                req.vlan = cpu_to_le16
 337                                (vlan_id & CMDQ_ADD_GID_VLAN_VLAN_ID_MASK);
 338                        req.vlan |= cpu_to_le16
 339                                        (CMDQ_ADD_GID_VLAN_TPID_TPID_8100 |
 340                                         CMDQ_ADD_GID_VLAN_VLAN_EN);
 341                }
 342
 343                /* MAC in network format */
 344                req.src_mac[0] = cpu_to_be16(((u16 *)smac)[0]);
 345                req.src_mac[1] = cpu_to_be16(((u16 *)smac)[1]);
 346                req.src_mac[2] = cpu_to_be16(((u16 *)smac)[2]);
 347
 348                rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 349                                                  (void *)&resp, NULL, 0);
 350                if (rc)
 351                        return rc;
 352                sgid_tbl->hw_id[free_idx] = le32_to_cpu(resp.xid);
 353        }
 354        /* Add GID to the sgid_tbl */
 355        memcpy(&sgid_tbl->tbl[free_idx], gid, sizeof(*gid));
 356        sgid_tbl->tbl[free_idx].vlan_id = vlan_id;
 357        sgid_tbl->active++;
 358        if (vlan_id != 0xFFFF)
 359                sgid_tbl->vlan[free_idx] = 1;
 360
 361        dev_dbg(&res->pdev->dev,
 362                "SGID added hw_id[0x%x] = 0x%x active = 0x%x\n",
 363                 free_idx, sgid_tbl->hw_id[free_idx], sgid_tbl->active);
 364
 365        *index = free_idx;
 366        /* unlock */
 367        return 0;
 368}
 369
 370int bnxt_qplib_update_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
 371                           struct bnxt_qplib_gid *gid, u16 gid_idx,
 372                           const u8 *smac)
 373{
 374        struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
 375                                                   struct bnxt_qplib_res,
 376                                                   sgid_tbl);
 377        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 378        struct creq_modify_gid_resp resp;
 379        struct cmdq_modify_gid req;
 380        int rc;
 381        u16 cmd_flags = 0;
 382
 383        RCFW_CMD_PREP(req, MODIFY_GID, cmd_flags);
 384
 385        req.gid[0] = cpu_to_be32(((u32 *)gid->data)[3]);
 386        req.gid[1] = cpu_to_be32(((u32 *)gid->data)[2]);
 387        req.gid[2] = cpu_to_be32(((u32 *)gid->data)[1]);
 388        req.gid[3] = cpu_to_be32(((u32 *)gid->data)[0]);
 389        if (res->prio) {
 390                req.vlan |= cpu_to_le16
 391                        (CMDQ_ADD_GID_VLAN_TPID_TPID_8100 |
 392                         CMDQ_ADD_GID_VLAN_VLAN_EN);
 393        }
 394
 395        /* MAC in network format */
 396        req.src_mac[0] = cpu_to_be16(((u16 *)smac)[0]);
 397        req.src_mac[1] = cpu_to_be16(((u16 *)smac)[1]);
 398        req.src_mac[2] = cpu_to_be16(((u16 *)smac)[2]);
 399
 400        req.gid_index = cpu_to_le16(gid_idx);
 401
 402        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 403                                          (void *)&resp, NULL, 0);
 404        return rc;
 405}
 406
 407/* AH */
 408int bnxt_qplib_create_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah,
 409                         bool block)
 410{
 411        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 412        struct cmdq_create_ah req;
 413        struct creq_create_ah_resp resp;
 414        u16 cmd_flags = 0;
 415        u32 temp32[4];
 416        u16 temp16[3];
 417        int rc;
 418
 419        RCFW_CMD_PREP(req, CREATE_AH, cmd_flags);
 420
 421        memcpy(temp32, ah->dgid.data, sizeof(struct bnxt_qplib_gid));
 422        req.dgid[0] = cpu_to_le32(temp32[0]);
 423        req.dgid[1] = cpu_to_le32(temp32[1]);
 424        req.dgid[2] = cpu_to_le32(temp32[2]);
 425        req.dgid[3] = cpu_to_le32(temp32[3]);
 426
 427        req.type = ah->nw_type;
 428        req.hop_limit = ah->hop_limit;
 429        req.sgid_index = cpu_to_le16(res->sgid_tbl.hw_id[ah->sgid_index]);
 430        req.dest_vlan_id_flow_label = cpu_to_le32((ah->flow_label &
 431                                        CMDQ_CREATE_AH_FLOW_LABEL_MASK) |
 432                                        CMDQ_CREATE_AH_DEST_VLAN_ID_MASK);
 433        req.pd_id = cpu_to_le32(ah->pd->id);
 434        req.traffic_class = ah->traffic_class;
 435
 436        /* MAC in network format */
 437        memcpy(temp16, ah->dmac, 6);
 438        req.dest_mac[0] = cpu_to_le16(temp16[0]);
 439        req.dest_mac[1] = cpu_to_le16(temp16[1]);
 440        req.dest_mac[2] = cpu_to_le16(temp16[2]);
 441
 442        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 443                                          NULL, block);
 444        if (rc)
 445                return rc;
 446
 447        ah->id = le32_to_cpu(resp.xid);
 448        return 0;
 449}
 450
 451void bnxt_qplib_destroy_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah,
 452                           bool block)
 453{
 454        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 455        struct cmdq_destroy_ah req;
 456        struct creq_destroy_ah_resp resp;
 457        u16 cmd_flags = 0;
 458
 459        /* Clean up the AH table in the device */
 460        RCFW_CMD_PREP(req, DESTROY_AH, cmd_flags);
 461
 462        req.ah_cid = cpu_to_le32(ah->id);
 463
 464        bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, NULL,
 465                                     block);
 466}
 467
 468/* MRW */
 469int bnxt_qplib_free_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw)
 470{
 471        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 472        struct cmdq_deallocate_key req;
 473        struct creq_deallocate_key_resp resp;
 474        u16 cmd_flags = 0;
 475        int rc;
 476
 477        if (mrw->lkey == 0xFFFFFFFF) {
 478                dev_info(&res->pdev->dev, "SP: Free a reserved lkey MRW\n");
 479                return 0;
 480        }
 481
 482        RCFW_CMD_PREP(req, DEALLOCATE_KEY, cmd_flags);
 483
 484        req.mrw_flags = mrw->type;
 485
 486        if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1)  ||
 487            (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) ||
 488            (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B))
 489                req.key = cpu_to_le32(mrw->rkey);
 490        else
 491                req.key = cpu_to_le32(mrw->lkey);
 492
 493        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 494                                          NULL, 0);
 495        if (rc)
 496                return rc;
 497
 498        /* Free the qplib's MRW memory */
 499        if (mrw->hwq.max_elements)
 500                bnxt_qplib_free_hwq(res, &mrw->hwq);
 501
 502        return 0;
 503}
 504
 505int bnxt_qplib_alloc_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw)
 506{
 507        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 508        struct cmdq_allocate_mrw req;
 509        struct creq_allocate_mrw_resp resp;
 510        u16 cmd_flags = 0;
 511        unsigned long tmp;
 512        int rc;
 513
 514        RCFW_CMD_PREP(req, ALLOCATE_MRW, cmd_flags);
 515
 516        req.pd_id = cpu_to_le32(mrw->pd->id);
 517        req.mrw_flags = mrw->type;
 518        if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_PMR &&
 519             mrw->flags & BNXT_QPLIB_FR_PMR) ||
 520            mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A ||
 521            mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B)
 522                req.access = CMDQ_ALLOCATE_MRW_ACCESS_CONSUMER_OWNED_KEY;
 523        tmp = (unsigned long)mrw;
 524        req.mrw_handle = cpu_to_le64(tmp);
 525
 526        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 527                                          (void *)&resp, NULL, 0);
 528        if (rc)
 529                return rc;
 530
 531        if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1)  ||
 532            (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) ||
 533            (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B))
 534                mrw->rkey = le32_to_cpu(resp.xid);
 535        else
 536                mrw->lkey = le32_to_cpu(resp.xid);
 537        return 0;
 538}
 539
 540int bnxt_qplib_dereg_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw,
 541                         bool block)
 542{
 543        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 544        struct cmdq_deregister_mr req;
 545        struct creq_deregister_mr_resp resp;
 546        u16 cmd_flags = 0;
 547        int rc;
 548
 549        RCFW_CMD_PREP(req, DEREGISTER_MR, cmd_flags);
 550
 551        req.lkey = cpu_to_le32(mrw->lkey);
 552        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 553                                          (void *)&resp, NULL, block);
 554        if (rc)
 555                return rc;
 556
 557        /* Free the qplib's MR memory */
 558        if (mrw->hwq.max_elements) {
 559                mrw->va = 0;
 560                mrw->total_size = 0;
 561                bnxt_qplib_free_hwq(res, &mrw->hwq);
 562        }
 563
 564        return 0;
 565}
 566
 567int bnxt_qplib_reg_mr(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mr,
 568                      struct ib_umem *umem, int num_pbls, u32 buf_pg_size)
 569{
 570        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 571        struct bnxt_qplib_hwq_attr hwq_attr = {};
 572        struct bnxt_qplib_sg_info sginfo = {};
 573        struct creq_register_mr_resp resp;
 574        struct cmdq_register_mr req;
 575        u16 cmd_flags = 0, level;
 576        int pages, rc;
 577        u32 pg_size;
 578
 579        if (num_pbls) {
 580                pages = roundup_pow_of_two(num_pbls);
 581                /* Allocate memory for the non-leaf pages to store buf ptrs.
 582                 * Non-leaf pages always uses system PAGE_SIZE
 583                 */
 584                /* Free the hwq if it already exist, must be a rereg */
 585                if (mr->hwq.max_elements)
 586                        bnxt_qplib_free_hwq(res, &mr->hwq);
 587                /* Use system PAGE_SIZE */
 588                hwq_attr.res = res;
 589                hwq_attr.depth = pages;
 590                hwq_attr.stride = buf_pg_size;
 591                hwq_attr.type = HWQ_TYPE_MR;
 592                hwq_attr.sginfo = &sginfo;
 593                hwq_attr.sginfo->umem = umem;
 594                hwq_attr.sginfo->npages = pages;
 595                hwq_attr.sginfo->pgsize = PAGE_SIZE;
 596                hwq_attr.sginfo->pgshft = PAGE_SHIFT;
 597                rc = bnxt_qplib_alloc_init_hwq(&mr->hwq, &hwq_attr);
 598                if (rc) {
 599                        dev_err(&res->pdev->dev,
 600                                "SP: Reg MR memory allocation failed\n");
 601                        return -ENOMEM;
 602                }
 603        }
 604
 605        RCFW_CMD_PREP(req, REGISTER_MR, cmd_flags);
 606
 607        /* Configure the request */
 608        if (mr->hwq.level == PBL_LVL_MAX) {
 609                /* No PBL provided, just use system PAGE_SIZE */
 610                level = 0;
 611                req.pbl = 0;
 612                pg_size = PAGE_SIZE;
 613        } else {
 614                level = mr->hwq.level;
 615                req.pbl = cpu_to_le64(mr->hwq.pbl[PBL_LVL_0].pg_map_arr[0]);
 616        }
 617        pg_size = buf_pg_size ? buf_pg_size : PAGE_SIZE;
 618        req.log2_pg_size_lvl = (level << CMDQ_REGISTER_MR_LVL_SFT) |
 619                               ((ilog2(pg_size) <<
 620                                 CMDQ_REGISTER_MR_LOG2_PG_SIZE_SFT) &
 621                                CMDQ_REGISTER_MR_LOG2_PG_SIZE_MASK);
 622        req.log2_pbl_pg_size = cpu_to_le16(((ilog2(PAGE_SIZE) <<
 623                                 CMDQ_REGISTER_MR_LOG2_PBL_PG_SIZE_SFT) &
 624                                CMDQ_REGISTER_MR_LOG2_PBL_PG_SIZE_MASK));
 625        req.access = (mr->flags & 0xFFFF);
 626        req.va = cpu_to_le64(mr->va);
 627        req.key = cpu_to_le32(mr->lkey);
 628        req.mr_size = cpu_to_le64(mr->total_size);
 629
 630        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 631                                          (void *)&resp, NULL, false);
 632        if (rc)
 633                goto fail;
 634
 635        return 0;
 636
 637fail:
 638        if (mr->hwq.max_elements)
 639                bnxt_qplib_free_hwq(res, &mr->hwq);
 640        return rc;
 641}
 642
 643int bnxt_qplib_alloc_fast_reg_page_list(struct bnxt_qplib_res *res,
 644                                        struct bnxt_qplib_frpl *frpl,
 645                                        int max_pg_ptrs)
 646{
 647        struct bnxt_qplib_hwq_attr hwq_attr = {};
 648        struct bnxt_qplib_sg_info sginfo = {};
 649        int pg_ptrs, pages, rc;
 650
 651        /* Re-calculate the max to fit the HWQ allocation model */
 652        pg_ptrs = roundup_pow_of_two(max_pg_ptrs);
 653        pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT;
 654        if (!pages)
 655                pages++;
 656
 657        if (pages > MAX_PBL_LVL_1_PGS)
 658                return -ENOMEM;
 659
 660        sginfo.pgsize = PAGE_SIZE;
 661        sginfo.nopte = true;
 662
 663        hwq_attr.res = res;
 664        hwq_attr.depth = pg_ptrs;
 665        hwq_attr.stride = PAGE_SIZE;
 666        hwq_attr.sginfo = &sginfo;
 667        hwq_attr.type = HWQ_TYPE_CTX;
 668        rc = bnxt_qplib_alloc_init_hwq(&frpl->hwq, &hwq_attr);
 669        if (!rc)
 670                frpl->max_pg_ptrs = pg_ptrs;
 671
 672        return rc;
 673}
 674
 675int bnxt_qplib_free_fast_reg_page_list(struct bnxt_qplib_res *res,
 676                                       struct bnxt_qplib_frpl *frpl)
 677{
 678        bnxt_qplib_free_hwq(res, &frpl->hwq);
 679        return 0;
 680}
 681
 682int bnxt_qplib_map_tc2cos(struct bnxt_qplib_res *res, u16 *cids)
 683{
 684        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 685        struct cmdq_map_tc_to_cos req;
 686        struct creq_map_tc_to_cos_resp resp;
 687        u16 cmd_flags = 0;
 688
 689        RCFW_CMD_PREP(req, MAP_TC_TO_COS, cmd_flags);
 690        req.cos0 = cpu_to_le16(cids[0]);
 691        req.cos1 = cpu_to_le16(cids[1]);
 692
 693        return bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 694                                                NULL, 0);
 695}
 696
 697int bnxt_qplib_get_roce_stats(struct bnxt_qplib_rcfw *rcfw,
 698                              struct bnxt_qplib_roce_stats *stats)
 699{
 700        struct cmdq_query_roce_stats req;
 701        struct creq_query_roce_stats_resp resp;
 702        struct bnxt_qplib_rcfw_sbuf *sbuf;
 703        struct creq_query_roce_stats_resp_sb *sb;
 704        u16 cmd_flags = 0;
 705        int rc = 0;
 706
 707        RCFW_CMD_PREP(req, QUERY_ROCE_STATS, cmd_flags);
 708
 709        sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb));
 710        if (!sbuf) {
 711                dev_err(&rcfw->pdev->dev,
 712                        "SP: QUERY_ROCE_STATS alloc side buffer failed\n");
 713                return -ENOMEM;
 714        }
 715
 716        sb = sbuf->sb;
 717        req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS;
 718        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 719                                          (void *)sbuf, 0);
 720        if (rc)
 721                goto bail;
 722        /* Extract the context from the side buffer */
 723        stats->to_retransmits = le64_to_cpu(sb->to_retransmits);
 724        stats->seq_err_naks_rcvd = le64_to_cpu(sb->seq_err_naks_rcvd);
 725        stats->max_retry_exceeded = le64_to_cpu(sb->max_retry_exceeded);
 726        stats->rnr_naks_rcvd = le64_to_cpu(sb->rnr_naks_rcvd);
 727        stats->missing_resp = le64_to_cpu(sb->missing_resp);
 728        stats->unrecoverable_err = le64_to_cpu(sb->unrecoverable_err);
 729        stats->bad_resp_err = le64_to_cpu(sb->bad_resp_err);
 730        stats->local_qp_op_err = le64_to_cpu(sb->local_qp_op_err);
 731        stats->local_protection_err = le64_to_cpu(sb->local_protection_err);
 732        stats->mem_mgmt_op_err = le64_to_cpu(sb->mem_mgmt_op_err);
 733        stats->remote_invalid_req_err = le64_to_cpu(sb->remote_invalid_req_err);
 734        stats->remote_access_err = le64_to_cpu(sb->remote_access_err);
 735        stats->remote_op_err = le64_to_cpu(sb->remote_op_err);
 736        stats->dup_req = le64_to_cpu(sb->dup_req);
 737        stats->res_exceed_max = le64_to_cpu(sb->res_exceed_max);
 738        stats->res_length_mismatch = le64_to_cpu(sb->res_length_mismatch);
 739        stats->res_exceeds_wqe = le64_to_cpu(sb->res_exceeds_wqe);
 740        stats->res_opcode_err = le64_to_cpu(sb->res_opcode_err);
 741        stats->res_rx_invalid_rkey = le64_to_cpu(sb->res_rx_invalid_rkey);
 742        stats->res_rx_domain_err = le64_to_cpu(sb->res_rx_domain_err);
 743        stats->res_rx_no_perm = le64_to_cpu(sb->res_rx_no_perm);
 744        stats->res_rx_range_err = le64_to_cpu(sb->res_rx_range_err);
 745        stats->res_tx_invalid_rkey = le64_to_cpu(sb->res_tx_invalid_rkey);
 746        stats->res_tx_domain_err = le64_to_cpu(sb->res_tx_domain_err);
 747        stats->res_tx_no_perm = le64_to_cpu(sb->res_tx_no_perm);
 748        stats->res_tx_range_err = le64_to_cpu(sb->res_tx_range_err);
 749        stats->res_irrq_oflow = le64_to_cpu(sb->res_irrq_oflow);
 750        stats->res_unsup_opcode = le64_to_cpu(sb->res_unsup_opcode);
 751        stats->res_unaligned_atomic = le64_to_cpu(sb->res_unaligned_atomic);
 752        stats->res_rem_inv_err = le64_to_cpu(sb->res_rem_inv_err);
 753        stats->res_mem_error = le64_to_cpu(sb->res_mem_error);
 754        stats->res_srq_err = le64_to_cpu(sb->res_srq_err);
 755        stats->res_cmp_err = le64_to_cpu(sb->res_cmp_err);
 756        stats->res_invalid_dup_rkey = le64_to_cpu(sb->res_invalid_dup_rkey);
 757        stats->res_wqe_format_err = le64_to_cpu(sb->res_wqe_format_err);
 758        stats->res_cq_load_err = le64_to_cpu(sb->res_cq_load_err);
 759        stats->res_srq_load_err = le64_to_cpu(sb->res_srq_load_err);
 760        stats->res_tx_pci_err = le64_to_cpu(sb->res_tx_pci_err);
 761        stats->res_rx_pci_err = le64_to_cpu(sb->res_rx_pci_err);
 762        if (!rcfw->init_oos_stats) {
 763                rcfw->oos_prev = le64_to_cpu(sb->res_oos_drop_count);
 764                rcfw->init_oos_stats = 1;
 765        } else {
 766                stats->res_oos_drop_count +=
 767                                (le64_to_cpu(sb->res_oos_drop_count) -
 768                                 rcfw->oos_prev) & BNXT_QPLIB_OOS_COUNT_MASK;
 769                rcfw->oos_prev = le64_to_cpu(sb->res_oos_drop_count);
 770        }
 771
 772bail:
 773        bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
 774        return rc;
 775}
 776
 777int bnxt_qplib_qext_stat(struct bnxt_qplib_rcfw *rcfw, u32 fid,
 778                         struct bnxt_qplib_ext_stat *estat)
 779{
 780        struct creq_query_roce_stats_ext_resp resp = {};
 781        struct creq_query_roce_stats_ext_resp_sb *sb;
 782        struct cmdq_query_roce_stats_ext req = {};
 783        struct bnxt_qplib_rcfw_sbuf *sbuf;
 784        u16 cmd_flags = 0;
 785        int rc;
 786
 787        sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb));
 788        if (!sbuf) {
 789                dev_err(&rcfw->pdev->dev,
 790                        "SP: QUERY_ROCE_STATS_EXT alloc sb failed");
 791                return -ENOMEM;
 792        }
 793
 794        RCFW_CMD_PREP(req, QUERY_ROCE_STATS_EXT, cmd_flags);
 795
 796        req.resp_size = ALIGN(sizeof(*sb), BNXT_QPLIB_CMDQE_UNITS);
 797        req.resp_addr = cpu_to_le64(sbuf->dma_addr);
 798        req.function_id = cpu_to_le32(fid);
 799        req.flags = cpu_to_le16(CMDQ_QUERY_ROCE_STATS_EXT_FLAGS_FUNCTION_ID);
 800
 801        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 802                                          (void *)&resp, (void *)sbuf, 0);
 803        if (rc)
 804                goto bail;
 805
 806        sb = sbuf->sb;
 807        estat->tx_atomic_req = le64_to_cpu(sb->tx_atomic_req_pkts);
 808        estat->tx_read_req = le64_to_cpu(sb->tx_read_req_pkts);
 809        estat->tx_read_res = le64_to_cpu(sb->tx_read_res_pkts);
 810        estat->tx_write_req = le64_to_cpu(sb->tx_write_req_pkts);
 811        estat->tx_send_req = le64_to_cpu(sb->tx_send_req_pkts);
 812        estat->rx_atomic_req = le64_to_cpu(sb->rx_atomic_req_pkts);
 813        estat->rx_read_req = le64_to_cpu(sb->rx_read_req_pkts);
 814        estat->rx_read_res = le64_to_cpu(sb->rx_read_res_pkts);
 815        estat->rx_write_req = le64_to_cpu(sb->rx_write_req_pkts);
 816        estat->rx_send_req = le64_to_cpu(sb->rx_send_req_pkts);
 817        estat->rx_roce_good_pkts = le64_to_cpu(sb->rx_roce_good_pkts);
 818        estat->rx_roce_good_bytes = le64_to_cpu(sb->rx_roce_good_bytes);
 819        estat->rx_out_of_buffer = le64_to_cpu(sb->rx_out_of_buffer_pkts);
 820        estat->rx_out_of_sequence = le64_to_cpu(sb->rx_out_of_sequence_pkts);
 821
 822bail:
 823        bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
 824        return rc;
 825}
 826