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 void bnxt_qplib_query_version(struct bnxt_qplib_rcfw *rcfw,
  58                                      char *fw_ver)
  59 {
  60         struct cmdq_query_version req;
  61         struct creq_query_version_resp resp;
  62         u16 cmd_flags = 0;
  63         int rc = 0;
  64
  65         RCFW_CMD_PREP(req, QUERY_VERSION, cmd_flags);
  66
  67         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
  68                                           (void *)&resp, NULL, 0);
  69         if (rc)
  70                 return;
  71         fw_ver[0] = resp.fw_maj;
  72         fw_ver[1] = resp.fw_minor;
  73         fw_ver[2] = resp.fw_bld;
  74         fw_ver[3] = resp.fw_rsvd;
  75 }
  76
  77 int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw,
  78                             struct bnxt_qplib_dev_attr *attr, bool vf)
  79 {
  80         struct cmdq_query_func req;
  81         struct creq_query_func_resp resp;
  82         struct bnxt_qplib_rcfw_sbuf *sbuf;
  83         struct creq_query_func_resp_sb *sb;
  84         u16 cmd_flags = 0;
  85         u32 temp;
  86         u8 *tqm_alloc;
  87         int i, rc = 0;
  88
  89         RCFW_CMD_PREP(req, QUERY_FUNC, cmd_flags);
  90
  91         sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb));
  92         if (!sbuf) {
  93                 dev_err(&rcfw->pdev->dev,
  94                         "SP: QUERY_FUNC alloc side buffer failed\n");
  95                 return -ENOMEM;
  96         }
  97
  98         sb = sbuf->sb;
  99         req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS;
 100         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 101                                           (void *)sbuf, 0);
 102         if (rc)
 103                 goto bail;
 104
 105         /* Extract the context from the side buffer */
 106         attr->max_qp = le32_to_cpu(sb->max_qp);
 107         /* max_qp value reported by FW for PF doesn't include the QP1 for PF */
 108         if (!vf)
 109                 attr->max_qp += 1;
 110         attr->max_qp_rd_atom =
 111                 sb->max_qp_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ?
 112                 BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_rd_atom;
 113         attr->max_qp_init_rd_atom =
 114                 sb->max_qp_init_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ?
 115                 BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_init_rd_atom;
 116         attr->max_qp_wqes = le16_to_cpu(sb->max_qp_wr);
 117         /*
 118          * 128 WQEs needs to be reserved for the HW (8916). Prevent
 119          * reporting the max number
 120          */
 121         attr->max_qp_wqes -= BNXT_QPLIB_RESERVED_QP_WRS;
 122         attr->max_qp_sges = bnxt_qplib_is_chip_gen_p5(rcfw->res->cctx) ?
 123                             6 : sb->max_sge;
 124         attr->max_cq = le32_to_cpu(sb->max_cq);
 125         attr->max_cq_wqes = le32_to_cpu(sb->max_cqe);
 126         attr->max_cq_sges = attr->max_qp_sges;
 127         attr->max_mr = le32_to_cpu(sb->max_mr);
 128         attr->max_mw = le32_to_cpu(sb->max_mw);
 129
 130         attr->max_mr_size = le64_to_cpu(sb->max_mr_size);
 131         attr->max_pd = 64 * 1024;
 132         attr->max_raw_ethy_qp = le32_to_cpu(sb->max_raw_eth_qp);
 133         attr->max_ah = le32_to_cpu(sb->max_ah);
 134
 135         attr->max_srq = le16_to_cpu(sb->max_srq);
 136         attr->max_srq_wqes = le32_to_cpu(sb->max_srq_wr) - 1;
 137         attr->max_srq_sges = sb->max_srq_sge;
 138         attr->max_pkey = le32_to_cpu(sb->max_pkeys);
 139         /*
 140          * Some versions of FW reports more than 0xFFFF.
 141          * Restrict it for now to 0xFFFF to avoid
 142          * reporting trucated value
 143          */
 144         if (attr->max_pkey > 0xFFFF) {
 145                 /* ib_port_attr::pkey_tbl_len is u16 */
 146                 attr->max_pkey = 0xFFFF;
 147         }
 148
 149         attr->max_inline_data = le32_to_cpu(sb->max_inline_data);
 150         attr->l2_db_size = (sb->l2_db_space_size + 1) *
 151                             (0x01 << RCFW_DBR_BASE_PAGE_SHIFT);
 152         attr->max_sgid = le32_to_cpu(sb->max_gid);
 153
 154         bnxt_qplib_query_version(rcfw, attr->fw_ver);
 155
 156         for (i = 0; i < MAX_TQM_ALLOC_REQ / 4; i++) {
 157                 temp = le32_to_cpu(sb->tqm_alloc_reqs[i]);
 158                 tqm_alloc = (u8 *)&temp;
 159                 attr->tqm_alloc_reqs[i * 4] = *tqm_alloc;
 160                 attr->tqm_alloc_reqs[i * 4 + 1] = *(++tqm_alloc);
 161                 attr->tqm_alloc_reqs[i * 4 + 2] = *(++tqm_alloc);
 162                 attr->tqm_alloc_reqs[i * 4 + 3] = *(++tqm_alloc);
 163         }
 164
 165         attr->is_atomic = false;
 166 bail:
 167         bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
 168         return rc;
 169 }
 170
 171 int bnxt_qplib_set_func_resources(struct bnxt_qplib_res *res,
 172                                   struct bnxt_qplib_rcfw *rcfw,
 173                                   struct bnxt_qplib_ctx *ctx)
 174 {
 175         struct cmdq_set_func_resources req;
 176         struct creq_set_func_resources_resp resp;
 177         u16 cmd_flags = 0;
 178         int rc = 0;
 179
 180         RCFW_CMD_PREP(req, SET_FUNC_RESOURCES, cmd_flags);
 181
 182         req.number_of_qp = cpu_to_le32(ctx->qpc_count);
 183         req.number_of_mrw = cpu_to_le32(ctx->mrw_count);
 184         req.number_of_srq =  cpu_to_le32(ctx->srqc_count);
 185         req.number_of_cq = cpu_to_le32(ctx->cq_count);
 186
 187         req.max_qp_per_vf = cpu_to_le32(ctx->vf_res.max_qp_per_vf);
 188         req.max_mrw_per_vf = cpu_to_le32(ctx->vf_res.max_mrw_per_vf);
 189         req.max_srq_per_vf = cpu_to_le32(ctx->vf_res.max_srq_per_vf);
 190         req.max_cq_per_vf = cpu_to_le32(ctx->vf_res.max_cq_per_vf);
 191         req.max_gid_per_vf = cpu_to_le32(ctx->vf_res.max_gid_per_vf);
 192
 193         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 194                                           (void *)&resp,
 195                                           NULL, 0);
 196         if (rc) {
 197                 dev_err(&res->pdev->dev, "Failed to set function resources\n");
 198         }
 199         return rc;
 200 }
 201
 202 /* SGID */
 203 int bnxt_qplib_get_sgid(struct bnxt_qplib_res *res,
 204                         struct bnxt_qplib_sgid_tbl *sgid_tbl, int index,
 205                         struct bnxt_qplib_gid *gid)
 206 {
 207         if (index >= sgid_tbl->max) {
 208                 dev_err(&res->pdev->dev,
 209                         "Index %d exceeded SGID table max (%d)\n",
 210                         index, sgid_tbl->max);
 211                 return -EINVAL;
 212         }
 213         memcpy(gid, &sgid_tbl->tbl[index].gid, sizeof(*gid));
 214         return 0;
 215 }
 216
 217 int bnxt_qplib_del_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
 218                         struct bnxt_qplib_gid *gid, u16 vlan_id, bool update)
 219 {
 220         struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
 221                                                    struct bnxt_qplib_res,
 222                                                    sgid_tbl);
 223         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 224         int index;
 225
 226         if (!sgid_tbl) {
 227                 dev_err(&res->pdev->dev, "SGID table not allocated\n");
 228                 return -EINVAL;
 229         }
 230         /* Do we need a sgid_lock here? */
 231         if (!sgid_tbl->active) {
 232                 dev_err(&res->pdev->dev, "SGID table has no active entries\n");
 233                 return -ENOMEM;
 234         }
 235         for (index = 0; index < sgid_tbl->max; index++) {
 236                 if (!memcmp(&sgid_tbl->tbl[index].gid, gid, sizeof(*gid)) &&
 237                     vlan_id == sgid_tbl->tbl[index].vlan_id)
 238                         break;
 239         }
 240         if (index == sgid_tbl->max) {
 241                 dev_warn(&res->pdev->dev, "GID not found in the SGID table\n");
 242                 return 0;
 243         }
 244         /* Remove GID from the SGID table */
 245         if (update) {
 246                 struct cmdq_delete_gid req;
 247                 struct creq_delete_gid_resp resp;
 248                 u16 cmd_flags = 0;
 249                 int rc;
 250
 251                 RCFW_CMD_PREP(req, DELETE_GID, cmd_flags);
 252                 if (sgid_tbl->hw_id[index] == 0xFFFF) {
 253                         dev_err(&res->pdev->dev,
 254                                 "GID entry contains an invalid HW id\n");
 255                         return -EINVAL;
 256                 }
 257                 req.gid_index = cpu_to_le16(sgid_tbl->hw_id[index]);
 258                 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 259                                                   (void *)&resp, NULL, 0);
 260                 if (rc)
 261                         return rc;
 262         }
 263         memcpy(&sgid_tbl->tbl[index].gid, &bnxt_qplib_gid_zero,
 264                sizeof(bnxt_qplib_gid_zero));
 265         sgid_tbl->tbl[index].vlan_id = 0xFFFF;
 266         sgid_tbl->vlan[index] = 0;
 267         sgid_tbl->active--;
 268         dev_dbg(&res->pdev->dev,
 269                 "SGID deleted hw_id[0x%x] = 0x%x active = 0x%x\n",
 270                  index, sgid_tbl->hw_id[index], sgid_tbl->active);
 271         sgid_tbl->hw_id[index] = (u16)-1;
 272
 273         /* unlock */
 274         return 0;
 275 }
 276
 277 int bnxt_qplib_add_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
 278                         struct bnxt_qplib_gid *gid, u8 *smac, u16 vlan_id,
 279                         bool update, u32 *index)
 280 {
 281         struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
 282                                                    struct bnxt_qplib_res,
 283                                                    sgid_tbl);
 284         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 285         int i, free_idx;
 286
 287         if (!sgid_tbl) {
 288                 dev_err(&res->pdev->dev, "SGID table not allocated\n");
 289                 return -EINVAL;
 290         }
 291         /* Do we need a sgid_lock here? */
 292         if (sgid_tbl->active == sgid_tbl->max) {
 293                 dev_err(&res->pdev->dev, "SGID table is full\n");
 294                 return -ENOMEM;
 295         }
 296         free_idx = sgid_tbl->max;
 297         for (i = 0; i < sgid_tbl->max; i++) {
 298                 if (!memcmp(&sgid_tbl->tbl[i], gid, sizeof(*gid)) &&
 299                     sgid_tbl->tbl[i].vlan_id == vlan_id) {
 300                         dev_dbg(&res->pdev->dev,
 301                                 "SGID entry already exist in entry %d!\n", i);
 302                         *index = i;
 303                         return -EALREADY;
 304                 } else if (!memcmp(&sgid_tbl->tbl[i], &bnxt_qplib_gid_zero,
 305                                    sizeof(bnxt_qplib_gid_zero)) &&
 306                            free_idx == sgid_tbl->max) {
 307                         free_idx = i;
 308                 }
 309         }
 310         if (free_idx == sgid_tbl->max) {
 311                 dev_err(&res->pdev->dev,
 312                         "SGID table is FULL but count is not MAX??\n");
 313                 return -ENOMEM;
 314         }
 315         if (update) {
 316                 struct cmdq_add_gid req;
 317                 struct creq_add_gid_resp resp;
 318                 u16 cmd_flags = 0;
 319                 int rc;
 320
 321                 RCFW_CMD_PREP(req, ADD_GID, cmd_flags);
 322
 323                 req.gid[0] = cpu_to_be32(((u32 *)gid->data)[3]);
 324                 req.gid[1] = cpu_to_be32(((u32 *)gid->data)[2]);
 325                 req.gid[2] = cpu_to_be32(((u32 *)gid->data)[1]);
 326                 req.gid[3] = cpu_to_be32(((u32 *)gid->data)[0]);
 327                 /*
 328                  * driver should ensure that all RoCE traffic is always VLAN
 329                  * tagged if RoCE traffic is running on non-zero VLAN ID or
 330                  * RoCE traffic is running on non-zero Priority.
 331                  */
 332                 if ((vlan_id != 0xFFFF) || res->prio) {
 333                         if (vlan_id != 0xFFFF)
 334                                 req.vlan = cpu_to_le16
 335                                 (vlan_id & CMDQ_ADD_GID_VLAN_VLAN_ID_MASK);
 336                         req.vlan |= cpu_to_le16
 337                                         (CMDQ_ADD_GID_VLAN_TPID_TPID_8100 |
 338                                          CMDQ_ADD_GID_VLAN_VLAN_EN);
 339                 }
 340
 341                 /* MAC in network format */
 342                 req.src_mac[0] = cpu_to_be16(((u16 *)smac)[0]);
 343                 req.src_mac[1] = cpu_to_be16(((u16 *)smac)[1]);
 344                 req.src_mac[2] = cpu_to_be16(((u16 *)smac)[2]);
 345
 346                 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 347                                                   (void *)&resp, NULL, 0);
 348                 if (rc)
 349                         return rc;
 350                 sgid_tbl->hw_id[free_idx] = le32_to_cpu(resp.xid);
 351         }
 352         /* Add GID to the sgid_tbl */
 353         memcpy(&sgid_tbl->tbl[free_idx], gid, sizeof(*gid));
 354         sgid_tbl->tbl[free_idx].vlan_id = vlan_id;
 355         sgid_tbl->active++;
 356         if (vlan_id != 0xFFFF)
 357                 sgid_tbl->vlan[free_idx] = 1;
 358
 359         dev_dbg(&res->pdev->dev,
 360                 "SGID added hw_id[0x%x] = 0x%x active = 0x%x\n",
 361                  free_idx, sgid_tbl->hw_id[free_idx], sgid_tbl->active);
 362
 363         *index = free_idx;
 364         /* unlock */
 365         return 0;
 366 }
 367
 368 int bnxt_qplib_update_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
 369                            struct bnxt_qplib_gid *gid, u16 gid_idx,
 370                            u8 *smac)
 371 {
 372         struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
 373                                                    struct bnxt_qplib_res,
 374                                                    sgid_tbl);
 375         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 376         struct creq_modify_gid_resp resp;
 377         struct cmdq_modify_gid req;
 378         int rc;
 379         u16 cmd_flags = 0;
 380
 381         RCFW_CMD_PREP(req, MODIFY_GID, cmd_flags);
 382
 383         req.gid[0] = cpu_to_be32(((u32 *)gid->data)[3]);
 384         req.gid[1] = cpu_to_be32(((u32 *)gid->data)[2]);
 385         req.gid[2] = cpu_to_be32(((u32 *)gid->data)[1]);
 386         req.gid[3] = cpu_to_be32(((u32 *)gid->data)[0]);
 387         if (res->prio) {
 388                 req.vlan |= cpu_to_le16
 389                         (CMDQ_ADD_GID_VLAN_TPID_TPID_8100 |
 390                          CMDQ_ADD_GID_VLAN_VLAN_EN);
 391         }
 392
 393         /* MAC in network format */
 394         req.src_mac[0] = cpu_to_be16(((u16 *)smac)[0]);
 395         req.src_mac[1] = cpu_to_be16(((u16 *)smac)[1]);
 396         req.src_mac[2] = cpu_to_be16(((u16 *)smac)[2]);
 397
 398         req.gid_index = cpu_to_le16(gid_idx);
 399
 400         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 401                                           (void *)&resp, NULL, 0);
 402         return rc;
 403 }
 404
 405 /* pkeys */
 406 int bnxt_qplib_get_pkey(struct bnxt_qplib_res *res,
 407                         struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 index,
 408                         u16 *pkey)
 409 {
 410         if (index == 0xFFFF) {
 411                 *pkey = 0xFFFF;
 412                 return 0;
 413         }
 414         if (index >= pkey_tbl->max) {
 415                 dev_err(&res->pdev->dev,
 416                         "Index %d exceeded PKEY table max (%d)\n",
 417                         index, pkey_tbl->max);
 418                 return -EINVAL;
 419         }
 420         memcpy(pkey, &pkey_tbl->tbl[index], sizeof(*pkey));
 421         return 0;
 422 }
 423
 424 int bnxt_qplib_del_pkey(struct bnxt_qplib_res *res,
 425                         struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey,
 426                         bool update)
 427 {
 428         int i, rc = 0;
 429
 430         if (!pkey_tbl) {
 431                 dev_err(&res->pdev->dev, "PKEY table not allocated\n");
 432                 return -EINVAL;
 433         }
 434
 435         /* Do we need a pkey_lock here? */
 436         if (!pkey_tbl->active) {
 437                 dev_err(&res->pdev->dev, "PKEY table has no active entries\n");
 438                 return -ENOMEM;
 439         }
 440         for (i = 0; i < pkey_tbl->max; i++) {
 441                 if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey)))
 442                         break;
 443         }
 444         if (i == pkey_tbl->max) {
 445                 dev_err(&res->pdev->dev,
 446                         "PKEY 0x%04x not found in the pkey table\n", *pkey);
 447                 return -ENOMEM;
 448         }
 449         memset(&pkey_tbl->tbl[i], 0, sizeof(*pkey));
 450         pkey_tbl->active--;
 451
 452         /* unlock */
 453         return rc;
 454 }
 455
 456 int bnxt_qplib_add_pkey(struct bnxt_qplib_res *res,
 457                         struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey,
 458                         bool update)
 459 {
 460         int i, free_idx, rc = 0;
 461
 462         if (!pkey_tbl) {
 463                 dev_err(&res->pdev->dev, "PKEY table not allocated\n");
 464                 return -EINVAL;
 465         }
 466
 467         /* Do we need a pkey_lock here? */
 468         if (pkey_tbl->active == pkey_tbl->max) {
 469                 dev_err(&res->pdev->dev, "PKEY table is full\n");
 470                 return -ENOMEM;
 471         }
 472         free_idx = pkey_tbl->max;
 473         for (i = 0; i < pkey_tbl->max; i++) {
 474                 if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey)))
 475                         return -EALREADY;
 476                 else if (!pkey_tbl->tbl[i] && free_idx == pkey_tbl->max)
 477                         free_idx = i;
 478         }
 479         if (free_idx == pkey_tbl->max) {
 480                 dev_err(&res->pdev->dev,
 481                         "PKEY table is FULL but count is not MAX??\n");
 482                 return -ENOMEM;
 483         }
 484         /* Add PKEY to the pkey_tbl */
 485         memcpy(&pkey_tbl->tbl[free_idx], pkey, sizeof(*pkey));
 486         pkey_tbl->active++;
 487
 488         /* unlock */
 489         return rc;
 490 }
 491
 492 /* AH */
 493 int bnxt_qplib_create_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah,
 494                          bool block)
 495 {
 496         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 497         struct cmdq_create_ah req;
 498         struct creq_create_ah_resp resp;
 499         u16 cmd_flags = 0;
 500         u32 temp32[4];
 501         u16 temp16[3];
 502         int rc;
 503
 504         RCFW_CMD_PREP(req, CREATE_AH, cmd_flags);
 505
 506         memcpy(temp32, ah->dgid.data, sizeof(struct bnxt_qplib_gid));
 507         req.dgid[0] = cpu_to_le32(temp32[0]);
 508         req.dgid[1] = cpu_to_le32(temp32[1]);
 509         req.dgid[2] = cpu_to_le32(temp32[2]);
 510         req.dgid[3] = cpu_to_le32(temp32[3]);
 511
 512         req.type = ah->nw_type;
 513         req.hop_limit = ah->hop_limit;
 514         req.sgid_index = cpu_to_le16(res->sgid_tbl.hw_id[ah->sgid_index]);
 515         req.dest_vlan_id_flow_label = cpu_to_le32((ah->flow_label &
 516                                         CMDQ_CREATE_AH_FLOW_LABEL_MASK) |
 517                                         CMDQ_CREATE_AH_DEST_VLAN_ID_MASK);
 518         req.pd_id = cpu_to_le32(ah->pd->id);
 519         req.traffic_class = ah->traffic_class;
 520
 521         /* MAC in network format */
 522         memcpy(temp16, ah->dmac, 6);
 523         req.dest_mac[0] = cpu_to_le16(temp16[0]);
 524         req.dest_mac[1] = cpu_to_le16(temp16[1]);
 525         req.dest_mac[2] = cpu_to_le16(temp16[2]);
 526
 527         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 528                                           NULL, block);
 529         if (rc)
 530                 return rc;
 531
 532         ah->id = le32_to_cpu(resp.xid);
 533         return 0;
 534 }
 535
 536 void bnxt_qplib_destroy_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah,
 537                            bool block)
 538 {
 539         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 540         struct cmdq_destroy_ah req;
 541         struct creq_destroy_ah_resp resp;
 542         u16 cmd_flags = 0;
 543
 544         /* Clean up the AH table in the device */
 545         RCFW_CMD_PREP(req, DESTROY_AH, cmd_flags);
 546
 547         req.ah_cid = cpu_to_le32(ah->id);
 548
 549         bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, NULL,
 550                                      block);
 551 }
 552
 553 /* MRW */
 554 int bnxt_qplib_free_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw)
 555 {
 556         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 557         struct cmdq_deallocate_key req;
 558         struct creq_deallocate_key_resp resp;
 559         u16 cmd_flags = 0;
 560         int rc;
 561
 562         if (mrw->lkey == 0xFFFFFFFF) {
 563                 dev_info(&res->pdev->dev, "SP: Free a reserved lkey MRW\n");
 564                 return 0;
 565         }
 566
 567         RCFW_CMD_PREP(req, DEALLOCATE_KEY, cmd_flags);
 568
 569         req.mrw_flags = mrw->type;
 570
 571         if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1)  ||
 572             (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) ||
 573             (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B))
 574                 req.key = cpu_to_le32(mrw->rkey);
 575         else
 576                 req.key = cpu_to_le32(mrw->lkey);
 577
 578         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 579                                           NULL, 0);
 580         if (rc)
 581                 return rc;
 582
 583         /* Free the qplib's MRW memory */
 584         if (mrw->hwq.max_elements)
 585                 bnxt_qplib_free_hwq(res, &mrw->hwq);
 586
 587         return 0;
 588 }
 589
 590 int bnxt_qplib_alloc_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw)
 591 {
 592         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 593         struct cmdq_allocate_mrw req;
 594         struct creq_allocate_mrw_resp resp;
 595         u16 cmd_flags = 0;
 596         unsigned long tmp;
 597         int rc;
 598
 599         RCFW_CMD_PREP(req, ALLOCATE_MRW, cmd_flags);
 600
 601         req.pd_id = cpu_to_le32(mrw->pd->id);
 602         req.mrw_flags = mrw->type;
 603         if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_PMR &&
 604              mrw->flags & BNXT_QPLIB_FR_PMR) ||
 605             mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A ||
 606             mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B)
 607                 req.access = CMDQ_ALLOCATE_MRW_ACCESS_CONSUMER_OWNED_KEY;
 608         tmp = (unsigned long)mrw;
 609         req.mrw_handle = cpu_to_le64(tmp);
 610
 611         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 612                                           (void *)&resp, NULL, 0);
 613         if (rc)
 614                 return rc;
 615
 616         if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1)  ||
 617             (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) ||
 618             (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B))
 619                 mrw->rkey = le32_to_cpu(resp.xid);
 620         else
 621                 mrw->lkey = le32_to_cpu(resp.xid);
 622         return 0;
 623 }
 624
 625 int bnxt_qplib_dereg_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw,
 626                          bool block)
 627 {
 628         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 629         struct cmdq_deregister_mr req;
 630         struct creq_deregister_mr_resp resp;
 631         u16 cmd_flags = 0;
 632         int rc;
 633
 634         RCFW_CMD_PREP(req, DEREGISTER_MR, cmd_flags);
 635
 636         req.lkey = cpu_to_le32(mrw->lkey);
 637         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 638                                           (void *)&resp, NULL, block);
 639         if (rc)
 640                 return rc;
 641
 642         /* Free the qplib's MR memory */
 643         if (mrw->hwq.max_elements) {
 644                 mrw->va = 0;
 645                 mrw->total_size = 0;
 646                 bnxt_qplib_free_hwq(res, &mrw->hwq);
 647         }
 648
 649         return 0;
 650 }
 651
 652 int bnxt_qplib_reg_mr(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mr,
 653                       u64 *pbl_tbl, int num_pbls, bool block, u32 buf_pg_size)
 654 {
 655         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 656         struct bnxt_qplib_hwq_attr hwq_attr = {};
 657         struct bnxt_qplib_sg_info sginfo = {};
 658         struct creq_register_mr_resp resp;
 659         struct cmdq_register_mr req;
 660         int pg_ptrs, pages, i, rc;
 661         u16 cmd_flags = 0, level;
 662         dma_addr_t **pbl_ptr;
 663         u32 pg_size;
 664
 665         if (num_pbls) {
 666                 /* Allocate memory for the non-leaf pages to store buf ptrs.
 667                  * Non-leaf pages always uses system PAGE_SIZE
 668                  */
 669                 pg_ptrs = roundup_pow_of_two(num_pbls);
 670                 pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT;
 671                 if (!pages)
 672                         pages++;
 673
 674                 if (pages > MAX_PBL_LVL_1_PGS) {
 675                         dev_err(&res->pdev->dev,
 676                                 "SP: Reg MR: pages requested (0x%x) exceeded max (0x%x)\n",
 677                                 pages, MAX_PBL_LVL_1_PGS);
 678                         return -ENOMEM;
 679                 }
 680                 /* Free the hwq if it already exist, must be a rereg */
 681                 if (mr->hwq.max_elements)
 682                         bnxt_qplib_free_hwq(res, &mr->hwq);
 683                 /* Use system PAGE_SIZE */
 684                 hwq_attr.res = res;
 685                 hwq_attr.depth = pages;
 686                 hwq_attr.stride = PAGE_SIZE;
 687                 hwq_attr.type = HWQ_TYPE_MR;
 688                 hwq_attr.sginfo = &sginfo;
 689                 hwq_attr.sginfo->npages = pages;
 690                 hwq_attr.sginfo->pgsize = PAGE_SIZE;
 691                 hwq_attr.sginfo->pgshft = PAGE_SHIFT;
 692                 rc = bnxt_qplib_alloc_init_hwq(&mr->hwq, &hwq_attr);
 693                 if (rc) {
 694                         dev_err(&res->pdev->dev,
 695                                 "SP: Reg MR memory allocation failed\n");
 696                         return -ENOMEM;
 697                 }
 698                 /* Write to the hwq */
 699                 pbl_ptr = (dma_addr_t **)mr->hwq.pbl_ptr;
 700                 for (i = 0; i < num_pbls; i++)
 701                         pbl_ptr[PTR_PG(i)][PTR_IDX(i)] =
 702                                 (pbl_tbl[i] & PAGE_MASK) | PTU_PTE_VALID;
 703         }
 704
 705         RCFW_CMD_PREP(req, REGISTER_MR, cmd_flags);
 706
 707         /* Configure the request */
 708         if (mr->hwq.level == PBL_LVL_MAX) {
 709                 /* No PBL provided, just use system PAGE_SIZE */
 710                 level = 0;
 711                 req.pbl = 0;
 712                 pg_size = PAGE_SIZE;
 713         } else {
 714                 level = mr->hwq.level + 1;
 715                 req.pbl = cpu_to_le64(mr->hwq.pbl[PBL_LVL_0].pg_map_arr[0]);
 716         }
 717         pg_size = buf_pg_size ? buf_pg_size : PAGE_SIZE;
 718         req.log2_pg_size_lvl = (level << CMDQ_REGISTER_MR_LVL_SFT) |
 719                                ((ilog2(pg_size) <<
 720                                  CMDQ_REGISTER_MR_LOG2_PG_SIZE_SFT) &
 721                                 CMDQ_REGISTER_MR_LOG2_PG_SIZE_MASK);
 722         req.log2_pbl_pg_size = cpu_to_le16(((ilog2(PAGE_SIZE) <<
 723                                  CMDQ_REGISTER_MR_LOG2_PBL_PG_SIZE_SFT) &
 724                                 CMDQ_REGISTER_MR_LOG2_PBL_PG_SIZE_MASK));
 725         req.access = (mr->flags & 0xFFFF);
 726         req.va = cpu_to_le64(mr->va);
 727         req.key = cpu_to_le32(mr->lkey);
 728         req.mr_size = cpu_to_le64(mr->total_size);
 729
 730         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 731                                           (void *)&resp, NULL, block);
 732         if (rc)
 733                 goto fail;
 734
 735         return 0;
 736
 737 fail:
 738         if (mr->hwq.max_elements)
 739                 bnxt_qplib_free_hwq(res, &mr->hwq);
 740         return rc;
 741 }
 742
 743 int bnxt_qplib_alloc_fast_reg_page_list(struct bnxt_qplib_res *res,
 744                                         struct bnxt_qplib_frpl *frpl,
 745                                         int max_pg_ptrs)
 746 {
 747         struct bnxt_qplib_hwq_attr hwq_attr = {};
 748         struct bnxt_qplib_sg_info sginfo = {};
 749         int pg_ptrs, pages, rc;
 750
 751         /* Re-calculate the max to fit the HWQ allocation model */
 752         pg_ptrs = roundup_pow_of_two(max_pg_ptrs);
 753         pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT;
 754         if (!pages)
 755                 pages++;
 756
 757         if (pages > MAX_PBL_LVL_1_PGS)
 758                 return -ENOMEM;
 759
 760         sginfo.pgsize = PAGE_SIZE;
 761         sginfo.nopte = true;
 762
 763         hwq_attr.res = res;
 764         hwq_attr.depth = pg_ptrs;
 765         hwq_attr.stride = PAGE_SIZE;
 766         hwq_attr.sginfo = &sginfo;
 767         hwq_attr.type = HWQ_TYPE_CTX;
 768         rc = bnxt_qplib_alloc_init_hwq(&frpl->hwq, &hwq_attr);
 769         if (!rc)
 770                 frpl->max_pg_ptrs = pg_ptrs;
 771
 772         return rc;
 773 }
 774
 775 int bnxt_qplib_free_fast_reg_page_list(struct bnxt_qplib_res *res,
 776                                        struct bnxt_qplib_frpl *frpl)
 777 {
 778         bnxt_qplib_free_hwq(res, &frpl->hwq);
 779         return 0;
 780 }
 781
 782 int bnxt_qplib_map_tc2cos(struct bnxt_qplib_res *res, u16 *cids)
 783 {
 784         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 785         struct cmdq_map_tc_to_cos req;
 786         struct creq_map_tc_to_cos_resp resp;
 787         u16 cmd_flags = 0;
 788
 789         RCFW_CMD_PREP(req, MAP_TC_TO_COS, cmd_flags);
 790         req.cos0 = cpu_to_le16(cids[0]);
 791         req.cos1 = cpu_to_le16(cids[1]);
 792
 793         return bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 794                                                 NULL, 0);
 795 }
 796
 797 int bnxt_qplib_get_roce_stats(struct bnxt_qplib_rcfw *rcfw,
 798                               struct bnxt_qplib_roce_stats *stats)
 799 {
 800         struct cmdq_query_roce_stats req;
 801         struct creq_query_roce_stats_resp resp;
 802         struct bnxt_qplib_rcfw_sbuf *sbuf;
 803         struct creq_query_roce_stats_resp_sb *sb;
 804         u16 cmd_flags = 0;
 805         int rc = 0;
 806
 807         RCFW_CMD_PREP(req, QUERY_ROCE_STATS, cmd_flags);
 808
 809         sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb));
 810         if (!sbuf) {
 811                 dev_err(&rcfw->pdev->dev,
 812                         "SP: QUERY_ROCE_STATS alloc side buffer failed\n");
 813                 return -ENOMEM;
 814         }
 815
 816         sb = sbuf->sb;
 817         req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS;
 818         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 819                                           (void *)sbuf, 0);
 820         if (rc)
 821                 goto bail;
 822         /* Extract the context from the side buffer */
 823         stats->to_retransmits = le64_to_cpu(sb->to_retransmits);
 824         stats->seq_err_naks_rcvd = le64_to_cpu(sb->seq_err_naks_rcvd);
 825         stats->max_retry_exceeded = le64_to_cpu(sb->max_retry_exceeded);
 826         stats->rnr_naks_rcvd = le64_to_cpu(sb->rnr_naks_rcvd);
 827         stats->missing_resp = le64_to_cpu(sb->missing_resp);
 828         stats->unrecoverable_err = le64_to_cpu(sb->unrecoverable_err);
 829         stats->bad_resp_err = le64_to_cpu(sb->bad_resp_err);
 830         stats->local_qp_op_err = le64_to_cpu(sb->local_qp_op_err);
 831         stats->local_protection_err = le64_to_cpu(sb->local_protection_err);
 832         stats->mem_mgmt_op_err = le64_to_cpu(sb->mem_mgmt_op_err);
 833         stats->remote_invalid_req_err = le64_to_cpu(sb->remote_invalid_req_err);
 834         stats->remote_access_err = le64_to_cpu(sb->remote_access_err);
 835         stats->remote_op_err = le64_to_cpu(sb->remote_op_err);
 836         stats->dup_req = le64_to_cpu(sb->dup_req);
 837         stats->res_exceed_max = le64_to_cpu(sb->res_exceed_max);
 838         stats->res_length_mismatch = le64_to_cpu(sb->res_length_mismatch);
 839         stats->res_exceeds_wqe = le64_to_cpu(sb->res_exceeds_wqe);
 840         stats->res_opcode_err = le64_to_cpu(sb->res_opcode_err);
 841         stats->res_rx_invalid_rkey = le64_to_cpu(sb->res_rx_invalid_rkey);
 842         stats->res_rx_domain_err = le64_to_cpu(sb->res_rx_domain_err);
 843         stats->res_rx_no_perm = le64_to_cpu(sb->res_rx_no_perm);
 844         stats->res_rx_range_err = le64_to_cpu(sb->res_rx_range_err);
 845         stats->res_tx_invalid_rkey = le64_to_cpu(sb->res_tx_invalid_rkey);
 846         stats->res_tx_domain_err = le64_to_cpu(sb->res_tx_domain_err);
 847         stats->res_tx_no_perm = le64_to_cpu(sb->res_tx_no_perm);
 848         stats->res_tx_range_err = le64_to_cpu(sb->res_tx_range_err);
 849         stats->res_irrq_oflow = le64_to_cpu(sb->res_irrq_oflow);
 850         stats->res_unsup_opcode = le64_to_cpu(sb->res_unsup_opcode);
 851         stats->res_unaligned_atomic = le64_to_cpu(sb->res_unaligned_atomic);
 852         stats->res_rem_inv_err = le64_to_cpu(sb->res_rem_inv_err);
 853         stats->res_mem_error = le64_to_cpu(sb->res_mem_error);
 854         stats->res_srq_err = le64_to_cpu(sb->res_srq_err);
 855         stats->res_cmp_err = le64_to_cpu(sb->res_cmp_err);
 856         stats->res_invalid_dup_rkey = le64_to_cpu(sb->res_invalid_dup_rkey);
 857         stats->res_wqe_format_err = le64_to_cpu(sb->res_wqe_format_err);
 858         stats->res_cq_load_err = le64_to_cpu(sb->res_cq_load_err);
 859         stats->res_srq_load_err = le64_to_cpu(sb->res_srq_load_err);
 860         stats->res_tx_pci_err = le64_to_cpu(sb->res_tx_pci_err);
 861         stats->res_rx_pci_err = le64_to_cpu(sb->res_rx_pci_err);
 862         if (!rcfw->init_oos_stats) {
 863                 rcfw->oos_prev = le64_to_cpu(sb->res_oos_drop_count);
 864                 rcfw->init_oos_stats = 1;
 865         } else {
 866                 stats->res_oos_drop_count +=
 867                                 (le64_to_cpu(sb->res_oos_drop_count) -
 868                                  rcfw->oos_prev) & BNXT_QPLIB_OOS_COUNT_MASK;
 869                 rcfw->oos_prev = le64_to_cpu(sb->res_oos_drop_count);
 870         }
 871
 872 bail:
 873         bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
 874         return rc;
 875 }