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 #include <linux/interrupt.h>
  40 #include <linux/spinlock.h>
  41 #include <linux/sched.h>
  42 #include <linux/pci.h>
  43
  44 #include "roce_hsi.h"
  45
  46 #include "qplib_res.h"
  47 #include "qplib_rcfw.h"
  48 #include "qplib_sp.h"
  49
  50 const struct bnxt_qplib_gid bnxt_qplib_gid_zero = {{ 0, 0, 0, 0, 0, 0, 0, 0,
  51                                                      0, 0, 0, 0, 0, 0, 0, 0 } };
  52
  53 /* Device */
  54 int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw,
  55                             struct bnxt_qplib_dev_attr *attr)
  56 {
  57         struct cmdq_query_func req;
  58         struct creq_query_func_resp resp;
  59         struct bnxt_qplib_rcfw_sbuf *sbuf;
  60         struct creq_query_func_resp_sb *sb;
  61         u16 cmd_flags = 0;
  62         u32 temp;
  63         u8 *tqm_alloc;
  64         int i, rc = 0;
  65
  66         RCFW_CMD_PREP(req, QUERY_FUNC, cmd_flags);
  67
  68         sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb));
  69         if (!sbuf) {
  70                 dev_err(&rcfw->pdev->dev,
  71                         "QPLIB: SP: QUERY_FUNC alloc side buffer failed");
  72                 return -ENOMEM;
  73         }
  74
  75         sb = sbuf->sb;
  76         req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS;
  77         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
  78                                           (void *)sbuf, 0);
  79         if (rc)
  80                 goto bail;
  81
  82         /* Extract the context from the side buffer */
  83         attr->max_qp = le32_to_cpu(sb->max_qp);
  84         attr->max_qp_rd_atom =
  85                 sb->max_qp_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ?
  86                 BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_rd_atom;
  87         attr->max_qp_init_rd_atom =
  88                 sb->max_qp_init_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ?
  89                 BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_init_rd_atom;
  90         attr->max_qp_wqes = le16_to_cpu(sb->max_qp_wr);
  91         attr->max_qp_sges = sb->max_sge;
  92         attr->max_cq = le32_to_cpu(sb->max_cq);
  93         attr->max_cq_wqes = le32_to_cpu(sb->max_cqe);
  94         attr->max_cq_sges = attr->max_qp_sges;
  95         attr->max_mr = le32_to_cpu(sb->max_mr);
  96         attr->max_mw = le32_to_cpu(sb->max_mw);
  97
  98         attr->max_mr_size = le64_to_cpu(sb->max_mr_size);
  99         attr->max_pd = 64 * 1024;
 100         attr->max_raw_ethy_qp = le32_to_cpu(sb->max_raw_eth_qp);
 101         attr->max_ah = le32_to_cpu(sb->max_ah);
 102
 103         attr->max_fmr = le32_to_cpu(sb->max_fmr);
 104         attr->max_map_per_fmr = sb->max_map_per_fmr;
 105
 106         attr->max_srq = le16_to_cpu(sb->max_srq);
 107         attr->max_srq_wqes = le32_to_cpu(sb->max_srq_wr) - 1;
 108         attr->max_srq_sges = sb->max_srq_sge;
 109         /* Bono only reports 1 PKEY for now, but it can support > 1 */
 110         attr->max_pkey = le32_to_cpu(sb->max_pkeys);
 111
 112         attr->max_inline_data = le32_to_cpu(sb->max_inline_data);
 113         attr->l2_db_size = (sb->l2_db_space_size + 1) * PAGE_SIZE;
 114         attr->max_sgid = le32_to_cpu(sb->max_gid);
 115
 116         strlcpy(attr->fw_ver, "20.6.28.0", sizeof(attr->fw_ver));
 117
 118         for (i = 0; i < MAX_TQM_ALLOC_REQ / 4; i++) {
 119                 temp = le32_to_cpu(sb->tqm_alloc_reqs[i]);
 120                 tqm_alloc = (u8 *)&temp;
 121                 attr->tqm_alloc_reqs[i * 4] = *tqm_alloc;
 122                 attr->tqm_alloc_reqs[i * 4 + 1] = *(++tqm_alloc);
 123                 attr->tqm_alloc_reqs[i * 4 + 2] = *(++tqm_alloc);
 124                 attr->tqm_alloc_reqs[i * 4 + 3] = *(++tqm_alloc);
 125         }
 126
 127 bail:
 128         bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
 129         return rc;
 130 }
 131
 132 /* SGID */
 133 int bnxt_qplib_get_sgid(struct bnxt_qplib_res *res,
 134                         struct bnxt_qplib_sgid_tbl *sgid_tbl, int index,
 135                         struct bnxt_qplib_gid *gid)
 136 {
 137         if (index > sgid_tbl->max) {
 138                 dev_err(&res->pdev->dev,
 139                         "QPLIB: Index %d exceeded SGID table max (%d)",
 140                         index, sgid_tbl->max);
 141                 return -EINVAL;
 142         }
 143         memcpy(gid, &sgid_tbl->tbl[index], sizeof(*gid));
 144         return 0;
 145 }
 146
 147 int bnxt_qplib_del_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
 148                         struct bnxt_qplib_gid *gid, bool update)
 149 {
 150         struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
 151                                                    struct bnxt_qplib_res,
 152                                                    sgid_tbl);
 153         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 154         int index;
 155
 156         if (!sgid_tbl) {
 157                 dev_err(&res->pdev->dev, "QPLIB: SGID table not allocated");
 158                 return -EINVAL;
 159         }
 160         /* Do we need a sgid_lock here? */
 161         if (!sgid_tbl->active) {
 162                 dev_err(&res->pdev->dev,
 163                         "QPLIB: SGID table has no active entries");
 164                 return -ENOMEM;
 165         }
 166         for (index = 0; index < sgid_tbl->max; index++) {
 167                 if (!memcmp(&sgid_tbl->tbl[index], gid, sizeof(*gid)))
 168                         break;
 169         }
 170         if (index == sgid_tbl->max) {
 171                 dev_warn(&res->pdev->dev, "GID not found in the SGID table");
 172                 return 0;
 173         }
 174         /* Remove GID from the SGID table */
 175         if (update) {
 176                 struct cmdq_delete_gid req;
 177                 struct creq_delete_gid_resp resp;
 178                 u16 cmd_flags = 0;
 179                 int rc;
 180
 181                 RCFW_CMD_PREP(req, DELETE_GID, cmd_flags);
 182                 if (sgid_tbl->hw_id[index] == 0xFFFF) {
 183                         dev_err(&res->pdev->dev,
 184                                 "QPLIB: GID entry contains an invalid HW id");
 185                         return -EINVAL;
 186                 }
 187                 req.gid_index = cpu_to_le16(sgid_tbl->hw_id[index]);
 188                 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 189                                                   (void *)&resp, NULL, 0);
 190                 if (rc)
 191                         return rc;
 192         }
 193         memcpy(&sgid_tbl->tbl[index], &bnxt_qplib_gid_zero,
 194                sizeof(bnxt_qplib_gid_zero));
 195         sgid_tbl->active--;
 196         dev_dbg(&res->pdev->dev,
 197                 "QPLIB: SGID deleted hw_id[0x%x] = 0x%x active = 0x%x",
 198                  index, sgid_tbl->hw_id[index], sgid_tbl->active);
 199         sgid_tbl->hw_id[index] = (u16)-1;
 200
 201         /* unlock */
 202         return 0;
 203 }
 204
 205 int bnxt_qplib_add_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
 206                         struct bnxt_qplib_gid *gid, u8 *smac, u16 vlan_id,
 207                         bool update, u32 *index)
 208 {
 209         struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
 210                                                    struct bnxt_qplib_res,
 211                                                    sgid_tbl);
 212         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 213         int i, free_idx;
 214
 215         if (!sgid_tbl) {
 216                 dev_err(&res->pdev->dev, "QPLIB: SGID table not allocated");
 217                 return -EINVAL;
 218         }
 219         /* Do we need a sgid_lock here? */
 220         if (sgid_tbl->active == sgid_tbl->max) {
 221                 dev_err(&res->pdev->dev, "QPLIB: SGID table is full");
 222                 return -ENOMEM;
 223         }
 224         free_idx = sgid_tbl->max;
 225         for (i = 0; i < sgid_tbl->max; i++) {
 226                 if (!memcmp(&sgid_tbl->tbl[i], gid, sizeof(*gid))) {
 227                         dev_dbg(&res->pdev->dev,
 228                                 "QPLIB: SGID entry already exist in entry %d!",
 229                                 i);
 230                         *index = i;
 231                         return -EALREADY;
 232                 } else if (!memcmp(&sgid_tbl->tbl[i], &bnxt_qplib_gid_zero,
 233                                    sizeof(bnxt_qplib_gid_zero)) &&
 234                            free_idx == sgid_tbl->max) {
 235                         free_idx = i;
 236                 }
 237         }
 238         if (free_idx == sgid_tbl->max) {
 239                 dev_err(&res->pdev->dev,
 240                         "QPLIB: SGID table is FULL but count is not MAX??");
 241                 return -ENOMEM;
 242         }
 243         if (update) {
 244                 struct cmdq_add_gid req;
 245                 struct creq_add_gid_resp resp;
 246                 u16 cmd_flags = 0;
 247                 u32 temp32[4];
 248                 u16 temp16[3];
 249                 int rc;
 250
 251                 RCFW_CMD_PREP(req, ADD_GID, cmd_flags);
 252
 253                 memcpy(temp32, gid->data, sizeof(struct bnxt_qplib_gid));
 254                 req.gid[0] = cpu_to_be32(temp32[3]);
 255                 req.gid[1] = cpu_to_be32(temp32[2]);
 256                 req.gid[2] = cpu_to_be32(temp32[1]);
 257                 req.gid[3] = cpu_to_be32(temp32[0]);
 258                 if (vlan_id != 0xFFFF)
 259                         req.vlan = cpu_to_le16((vlan_id &
 260                                         CMDQ_ADD_GID_VLAN_VLAN_ID_MASK) |
 261                                         CMDQ_ADD_GID_VLAN_TPID_TPID_8100 |
 262                                         CMDQ_ADD_GID_VLAN_VLAN_EN);
 263
 264                 /* MAC in network format */
 265                 memcpy(temp16, smac, 6);
 266                 req.src_mac[0] = cpu_to_be16(temp16[0]);
 267                 req.src_mac[1] = cpu_to_be16(temp16[1]);
 268                 req.src_mac[2] = cpu_to_be16(temp16[2]);
 269
 270                 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 271                                                   (void *)&resp, NULL, 0);
 272                 if (rc)
 273                         return rc;
 274                 sgid_tbl->hw_id[free_idx] = le32_to_cpu(resp.xid);
 275         }
 276         /* Add GID to the sgid_tbl */
 277         memcpy(&sgid_tbl->tbl[free_idx], gid, sizeof(*gid));
 278         sgid_tbl->active++;
 279         dev_dbg(&res->pdev->dev,
 280                 "QPLIB: SGID added hw_id[0x%x] = 0x%x active = 0x%x",
 281                  free_idx, sgid_tbl->hw_id[free_idx], sgid_tbl->active);
 282
 283         *index = free_idx;
 284         /* unlock */
 285         return 0;
 286 }
 287
 288 /* pkeys */
 289 int bnxt_qplib_get_pkey(struct bnxt_qplib_res *res,
 290                         struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 index,
 291                         u16 *pkey)
 292 {
 293         if (index == 0xFFFF) {
 294                 *pkey = 0xFFFF;
 295                 return 0;
 296         }
 297         if (index > pkey_tbl->max) {
 298                 dev_err(&res->pdev->dev,
 299                         "QPLIB: Index %d exceeded PKEY table max (%d)",
 300                         index, pkey_tbl->max);
 301                 return -EINVAL;
 302         }
 303         memcpy(pkey, &pkey_tbl->tbl[index], sizeof(*pkey));
 304         return 0;
 305 }
 306
 307 int bnxt_qplib_del_pkey(struct bnxt_qplib_res *res,
 308                         struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey,
 309                         bool update)
 310 {
 311         int i, rc = 0;
 312
 313         if (!pkey_tbl) {
 314                 dev_err(&res->pdev->dev, "QPLIB: PKEY table not allocated");
 315                 return -EINVAL;
 316         }
 317
 318         /* Do we need a pkey_lock here? */
 319         if (!pkey_tbl->active) {
 320                 dev_err(&res->pdev->dev,
 321                         "QPLIB: PKEY table has no active entries");
 322                 return -ENOMEM;
 323         }
 324         for (i = 0; i < pkey_tbl->max; i++) {
 325                 if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey)))
 326                         break;
 327         }
 328         if (i == pkey_tbl->max) {
 329                 dev_err(&res->pdev->dev,
 330                         "QPLIB: PKEY 0x%04x not found in the pkey table",
 331                         *pkey);
 332                 return -ENOMEM;
 333         }
 334         memset(&pkey_tbl->tbl[i], 0, sizeof(*pkey));
 335         pkey_tbl->active--;
 336
 337         /* unlock */
 338         return rc;
 339 }
 340
 341 int bnxt_qplib_add_pkey(struct bnxt_qplib_res *res,
 342                         struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey,
 343                         bool update)
 344 {
 345         int i, free_idx, rc = 0;
 346
 347         if (!pkey_tbl) {
 348                 dev_err(&res->pdev->dev, "QPLIB: PKEY table not allocated");
 349                 return -EINVAL;
 350         }
 351
 352         /* Do we need a pkey_lock here? */
 353         if (pkey_tbl->active == pkey_tbl->max) {
 354                 dev_err(&res->pdev->dev, "QPLIB: PKEY table is full");
 355                 return -ENOMEM;
 356         }
 357         free_idx = pkey_tbl->max;
 358         for (i = 0; i < pkey_tbl->max; i++) {
 359                 if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey)))
 360                         return -EALREADY;
 361                 else if (!pkey_tbl->tbl[i] && free_idx == pkey_tbl->max)
 362                         free_idx = i;
 363         }
 364         if (free_idx == pkey_tbl->max) {
 365                 dev_err(&res->pdev->dev,
 366                         "QPLIB: PKEY table is FULL but count is not MAX??");
 367                 return -ENOMEM;
 368         }
 369         /* Add PKEY to the pkey_tbl */
 370         memcpy(&pkey_tbl->tbl[free_idx], pkey, sizeof(*pkey));
 371         pkey_tbl->active++;
 372
 373         /* unlock */
 374         return rc;
 375 }
 376
 377 /* AH */
 378 int bnxt_qplib_create_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah)
 379 {
 380         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 381         struct cmdq_create_ah req;
 382         struct creq_create_ah_resp resp;
 383         u16 cmd_flags = 0;
 384         u32 temp32[4];
 385         u16 temp16[3];
 386         int rc;
 387
 388         RCFW_CMD_PREP(req, CREATE_AH, cmd_flags);
 389
 390         memcpy(temp32, ah->dgid.data, sizeof(struct bnxt_qplib_gid));
 391         req.dgid[0] = cpu_to_le32(temp32[0]);
 392         req.dgid[1] = cpu_to_le32(temp32[1]);
 393         req.dgid[2] = cpu_to_le32(temp32[2]);
 394         req.dgid[3] = cpu_to_le32(temp32[3]);
 395
 396         req.type = ah->nw_type;
 397         req.hop_limit = ah->hop_limit;
 398         req.sgid_index = cpu_to_le16(res->sgid_tbl.hw_id[ah->sgid_index]);
 399         req.dest_vlan_id_flow_label = cpu_to_le32((ah->flow_label &
 400                                         CMDQ_CREATE_AH_FLOW_LABEL_MASK) |
 401                                         CMDQ_CREATE_AH_DEST_VLAN_ID_MASK);
 402         req.pd_id = cpu_to_le32(ah->pd->id);
 403         req.traffic_class = ah->traffic_class;
 404
 405         /* MAC in network format */
 406         memcpy(temp16, ah->dmac, 6);
 407         req.dest_mac[0] = cpu_to_le16(temp16[0]);
 408         req.dest_mac[1] = cpu_to_le16(temp16[1]);
 409         req.dest_mac[2] = cpu_to_le16(temp16[2]);
 410
 411         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 412                                           NULL, 1);
 413         if (rc)
 414                 return rc;
 415
 416         ah->id = le32_to_cpu(resp.xid);
 417         return 0;
 418 }
 419
 420 int bnxt_qplib_destroy_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah)
 421 {
 422         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 423         struct cmdq_destroy_ah req;
 424         struct creq_destroy_ah_resp resp;
 425         u16 cmd_flags = 0;
 426         int rc;
 427
 428         /* Clean up the AH table in the device */
 429         RCFW_CMD_PREP(req, DESTROY_AH, cmd_flags);
 430
 431         req.ah_cid = cpu_to_le32(ah->id);
 432
 433         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 434                                           NULL, 1);
 435         if (rc)
 436                 return rc;
 437         return 0;
 438 }
 439
 440 /* MRW */
 441 int bnxt_qplib_free_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw)
 442 {
 443         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 444         struct cmdq_deallocate_key req;
 445         struct creq_deallocate_key_resp resp;
 446         u16 cmd_flags = 0;
 447         int rc;
 448
 449         if (mrw->lkey == 0xFFFFFFFF) {
 450                 dev_info(&res->pdev->dev,
 451                          "QPLIB: SP: Free a reserved lkey MRW");
 452                 return 0;
 453         }
 454
 455         RCFW_CMD_PREP(req, DEALLOCATE_KEY, cmd_flags);
 456
 457         req.mrw_flags = mrw->type;
 458
 459         if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1)  ||
 460             (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) ||
 461             (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B))
 462                 req.key = cpu_to_le32(mrw->rkey);
 463         else
 464                 req.key = cpu_to_le32(mrw->lkey);
 465
 466         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 467                                           NULL, 0);
 468         if (rc)
 469                 return rc;
 470
 471         /* Free the qplib's MRW memory */
 472         if (mrw->hwq.max_elements)
 473                 bnxt_qplib_free_hwq(res->pdev, &mrw->hwq);
 474
 475         return 0;
 476 }
 477
 478 int bnxt_qplib_alloc_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw)
 479 {
 480         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 481         struct cmdq_allocate_mrw req;
 482         struct creq_allocate_mrw_resp resp;
 483         u16 cmd_flags = 0;
 484         unsigned long tmp;
 485         int rc;
 486
 487         RCFW_CMD_PREP(req, ALLOCATE_MRW, cmd_flags);
 488
 489         req.pd_id = cpu_to_le32(mrw->pd->id);
 490         req.mrw_flags = mrw->type;
 491         if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_PMR &&
 492              mrw->flags & BNXT_QPLIB_FR_PMR) ||
 493             mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A ||
 494             mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B)
 495                 req.access = CMDQ_ALLOCATE_MRW_ACCESS_CONSUMER_OWNED_KEY;
 496         tmp = (unsigned long)mrw;
 497         req.mrw_handle = cpu_to_le64(tmp);
 498
 499         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 500                                           (void *)&resp, NULL, 0);
 501         if (rc)
 502                 return rc;
 503
 504         if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1)  ||
 505             (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) ||
 506             (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B))
 507                 mrw->rkey = le32_to_cpu(resp.xid);
 508         else
 509                 mrw->lkey = le32_to_cpu(resp.xid);
 510         return 0;
 511 }
 512
 513 int bnxt_qplib_dereg_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw,
 514                          bool block)
 515 {
 516         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 517         struct cmdq_deregister_mr req;
 518         struct creq_deregister_mr_resp resp;
 519         u16 cmd_flags = 0;
 520         int rc;
 521
 522         RCFW_CMD_PREP(req, DEREGISTER_MR, cmd_flags);
 523
 524         req.lkey = cpu_to_le32(mrw->lkey);
 525         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 526                                           (void *)&resp, NULL, block);
 527         if (rc)
 528                 return rc;
 529
 530         /* Free the qplib's MR memory */
 531         if (mrw->hwq.max_elements) {
 532                 mrw->va = 0;
 533                 mrw->total_size = 0;
 534                 bnxt_qplib_free_hwq(res->pdev, &mrw->hwq);
 535         }
 536
 537         return 0;
 538 }
 539
 540 int bnxt_qplib_reg_mr(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mr,
 541                       u64 *pbl_tbl, int num_pbls, bool block)
 542 {
 543         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 544         struct cmdq_register_mr req;
 545         struct creq_register_mr_resp resp;
 546         u16 cmd_flags = 0, level;
 547         int pg_ptrs, pages, i, rc;
 548         dma_addr_t **pbl_ptr;
 549         u32 pg_size;
 550
 551         if (num_pbls) {
 552                 pg_ptrs = roundup_pow_of_two(num_pbls);
 553                 pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT;
 554                 if (!pages)
 555                         pages++;
 556
 557                 if (pages > MAX_PBL_LVL_1_PGS) {
 558                         dev_err(&res->pdev->dev, "QPLIB: SP: Reg MR pages ");
 559                         dev_err(&res->pdev->dev,
 560                                 "requested (0x%x) exceeded max (0x%x)",
 561                                 pages, MAX_PBL_LVL_1_PGS);
 562                         return -ENOMEM;
 563                 }
 564                 /* Free the hwq if it already exist, must be a rereg */
 565                 if (mr->hwq.max_elements)
 566                         bnxt_qplib_free_hwq(res->pdev, &mr->hwq);
 567
 568                 mr->hwq.max_elements = pages;
 569                 rc = bnxt_qplib_alloc_init_hwq(res->pdev, &mr->hwq, NULL, 0,
 570                                                &mr->hwq.max_elements,
 571                                                PAGE_SIZE, 0, PAGE_SIZE,
 572                                                HWQ_TYPE_CTX);
 573                 if (rc) {
 574                         dev_err(&res->pdev->dev,
 575                                 "SP: Reg MR memory allocation failed");
 576                         return -ENOMEM;
 577                 }
 578                 /* Write to the hwq */
 579                 pbl_ptr = (dma_addr_t **)mr->hwq.pbl_ptr;
 580                 for (i = 0; i < num_pbls; i++)
 581                         pbl_ptr[PTR_PG(i)][PTR_IDX(i)] =
 582                                 (pbl_tbl[i] & PAGE_MASK) | PTU_PTE_VALID;
 583         }
 584
 585         RCFW_CMD_PREP(req, REGISTER_MR, cmd_flags);
 586
 587         /* Configure the request */
 588         if (mr->hwq.level == PBL_LVL_MAX) {
 589                 level = 0;
 590                 req.pbl = 0;
 591                 pg_size = PAGE_SIZE;
 592         } else {
 593                 level = mr->hwq.level + 1;
 594                 req.pbl = cpu_to_le64(mr->hwq.pbl[PBL_LVL_0].pg_map_arr[0]);
 595                 pg_size = mr->hwq.pbl[PBL_LVL_0].pg_size;
 596         }
 597         req.log2_pg_size_lvl = (level << CMDQ_REGISTER_MR_LVL_SFT) |
 598                                ((ilog2(pg_size) <<
 599                                  CMDQ_REGISTER_MR_LOG2_PG_SIZE_SFT) &
 600                                 CMDQ_REGISTER_MR_LOG2_PG_SIZE_MASK);
 601         req.access = (mr->flags & 0xFFFF);
 602         req.va = cpu_to_le64(mr->va);
 603         req.key = cpu_to_le32(mr->lkey);
 604         req.mr_size = cpu_to_le64(mr->total_size);
 605
 606         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 607                                           (void *)&resp, NULL, block);
 608         if (rc)
 609                 goto fail;
 610
 611         return 0;
 612
 613 fail:
 614         if (mr->hwq.max_elements)
 615                 bnxt_qplib_free_hwq(res->pdev, &mr->hwq);
 616         return rc;
 617 }
 618
 619 int bnxt_qplib_alloc_fast_reg_page_list(struct bnxt_qplib_res *res,
 620                                         struct bnxt_qplib_frpl *frpl,
 621                                         int max_pg_ptrs)
 622 {
 623         int pg_ptrs, pages, rc;
 624
 625         /* Re-calculate the max to fit the HWQ allocation model */
 626         pg_ptrs = roundup_pow_of_two(max_pg_ptrs);
 627         pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT;
 628         if (!pages)
 629                 pages++;
 630
 631         if (pages > MAX_PBL_LVL_1_PGS)
 632                 return -ENOMEM;
 633
 634         frpl->hwq.max_elements = pages;
 635         rc = bnxt_qplib_alloc_init_hwq(res->pdev, &frpl->hwq, NULL, 0,
 636                                        &frpl->hwq.max_elements, PAGE_SIZE, 0,
 637                                        PAGE_SIZE, HWQ_TYPE_CTX);
 638         if (!rc)
 639                 frpl->max_pg_ptrs = pg_ptrs;
 640
 641         return rc;
 642 }
 643
 644 int bnxt_qplib_free_fast_reg_page_list(struct bnxt_qplib_res *res,
 645                                        struct bnxt_qplib_frpl *frpl)
 646 {
 647         bnxt_qplib_free_hwq(res->pdev, &frpl->hwq);
 648         return 0;
 649 }
 650
 651 int bnxt_qplib_map_tc2cos(struct bnxt_qplib_res *res, u16 *cids)
 652 {
 653         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 654         struct cmdq_map_tc_to_cos req;
 655         struct creq_map_tc_to_cos_resp resp;
 656         u16 cmd_flags = 0;
 657         int rc = 0;
 658
 659         RCFW_CMD_PREP(req, MAP_TC_TO_COS, cmd_flags);
 660         req.cos0 = cpu_to_le16(cids[0]);
 661         req.cos1 = cpu_to_le16(cids[1]);
 662
 663         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 664                                           (void *)&resp, NULL, 0);
 665         return 0;
 666 }