drivers/infiniband/hw/bnxt_re/qplib_sp.c

   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
  52 const 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
  57 static 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
  68 static 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
  88 int 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);
 168 bail:
 169         bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
 170         return rc;
 171 }
 172
 173 int 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 */
 205 int 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
 219 int 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
 279 int 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
 370 int 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 */
 408 int 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
 451 void 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 */
 469 int 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
 505 int 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
 540 int 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
 567 int 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
 637 fail:
 638         if (mr->hwq.max_elements)
 639                 bnxt_qplib_free_hwq(res, &mr->hwq);
 640         return rc;
 641 }
 642
 643 int 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
 675 int 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
 682 int 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
 697 int 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
 772 bail:
 773         bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
 774         return rc;
 775 }
 776
 777 int 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
 822 bail:
 823         bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
 824         return rc;
 825 }