git.rot13.org Git - linux/blob - 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         /* max_qp value reported by FW for PF doesn't include the QP1 for PF */
  85         attr->max_qp += 1;
  86         attr->max_qp_rd_atom =
  87                 sb->max_qp_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ?
  88                 BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_rd_atom;
  89         attr->max_qp_init_rd_atom =
  90                 sb->max_qp_init_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ?
  91                 BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_init_rd_atom;
  92         attr->max_qp_wqes = le16_to_cpu(sb->max_qp_wr);
  93         /*
  94          * 128 WQEs needs to be reserved for the HW (8916). Prevent
  95          * reporting the max number
  96          */
  97         attr->max_qp_wqes -= BNXT_QPLIB_RESERVED_QP_WRS;
  98         attr->max_qp_sges = sb->max_sge;
  99         attr->max_cq = le32_to_cpu(sb->max_cq);
 100         attr->max_cq_wqes = le32_to_cpu(sb->max_cqe);
 101         attr->max_cq_sges = attr->max_qp_sges;
 102         attr->max_mr = le32_to_cpu(sb->max_mr);
 103         attr->max_mw = le32_to_cpu(sb->max_mw);
 104
 105         attr->max_mr_size = le64_to_cpu(sb->max_mr_size);
 106         attr->max_pd = 64 * 1024;
 107         attr->max_raw_ethy_qp = le32_to_cpu(sb->max_raw_eth_qp);
 108         attr->max_ah = le32_to_cpu(sb->max_ah);
 109
 110         attr->max_fmr = le32_to_cpu(sb->max_fmr);
 111         attr->max_map_per_fmr = sb->max_map_per_fmr;
 112
 113         attr->max_srq = le16_to_cpu(sb->max_srq);
 114         attr->max_srq_wqes = le32_to_cpu(sb->max_srq_wr) - 1;
 115         attr->max_srq_sges = sb->max_srq_sge;
 116         /* Bono only reports 1 PKEY for now, but it can support > 1 */
 117         attr->max_pkey = le32_to_cpu(sb->max_pkeys);
 118
 119         attr->max_inline_data = le32_to_cpu(sb->max_inline_data);
 120         attr->l2_db_size = (sb->l2_db_space_size + 1) * PAGE_SIZE;
 121         attr->max_sgid = le32_to_cpu(sb->max_gid);
 122
 123         strlcpy(attr->fw_ver, "20.6.28.0", sizeof(attr->fw_ver));
 124
 125         for (i = 0; i < MAX_TQM_ALLOC_REQ / 4; i++) {
 126                 temp = le32_to_cpu(sb->tqm_alloc_reqs[i]);
 127                 tqm_alloc = (u8 *)&temp;
 128                 attr->tqm_alloc_reqs[i * 4] = *tqm_alloc;
 129                 attr->tqm_alloc_reqs[i * 4 + 1] = *(++tqm_alloc);
 130                 attr->tqm_alloc_reqs[i * 4 + 2] = *(++tqm_alloc);
 131                 attr->tqm_alloc_reqs[i * 4 + 3] = *(++tqm_alloc);
 132         }
 133
 134 bail:
 135         bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
 136         return rc;
 137 }
 138
 139 /* SGID */
 140 int bnxt_qplib_get_sgid(struct bnxt_qplib_res *res,
 141                         struct bnxt_qplib_sgid_tbl *sgid_tbl, int index,
 142                         struct bnxt_qplib_gid *gid)
 143 {
 144         if (index > sgid_tbl->max) {
 145                 dev_err(&res->pdev->dev,
 146                         "QPLIB: Index %d exceeded SGID table max (%d)",
 147                         index, sgid_tbl->max);
 148                 return -EINVAL;
 149         }
 150         memcpy(gid, &sgid_tbl->tbl[index], sizeof(*gid));
 151         return 0;
 152 }
 153
 154 int bnxt_qplib_del_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
 155                         struct bnxt_qplib_gid *gid, bool update)
 156 {
 157         struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
 158                                                    struct bnxt_qplib_res,
 159                                                    sgid_tbl);
 160         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 161         int index;
 162
 163         if (!sgid_tbl) {
 164                 dev_err(&res->pdev->dev, "QPLIB: SGID table not allocated");
 165                 return -EINVAL;
 166         }
 167         /* Do we need a sgid_lock here? */
 168         if (!sgid_tbl->active) {
 169                 dev_err(&res->pdev->dev,
 170                         "QPLIB: SGID table has no active entries");
 171                 return -ENOMEM;
 172         }
 173         for (index = 0; index < sgid_tbl->max; index++) {
 174                 if (!memcmp(&sgid_tbl->tbl[index], gid, sizeof(*gid)))
 175                         break;
 176         }
 177         if (index == sgid_tbl->max) {
 178                 dev_warn(&res->pdev->dev, "GID not found in the SGID table");
 179                 return 0;
 180         }
 181         /* Remove GID from the SGID table */
 182         if (update) {
 183                 struct cmdq_delete_gid req;
 184                 struct creq_delete_gid_resp resp;
 185                 u16 cmd_flags = 0;
 186                 int rc;
 187
 188                 RCFW_CMD_PREP(req, DELETE_GID, cmd_flags);
 189                 if (sgid_tbl->hw_id[index] == 0xFFFF) {
 190                         dev_err(&res->pdev->dev,
 191                                 "QPLIB: GID entry contains an invalid HW id");
 192                         return -EINVAL;
 193                 }
 194                 req.gid_index = cpu_to_le16(sgid_tbl->hw_id[index]);
 195                 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 196                                                   (void *)&resp, NULL, 0);
 197                 if (rc)
 198                         return rc;
 199         }
 200         memcpy(&sgid_tbl->tbl[index], &bnxt_qplib_gid_zero,
 201                sizeof(bnxt_qplib_gid_zero));
 202         sgid_tbl->active--;
 203         dev_dbg(&res->pdev->dev,
 204                 "QPLIB: SGID deleted hw_id[0x%x] = 0x%x active = 0x%x",
 205                  index, sgid_tbl->hw_id[index], sgid_tbl->active);
 206         sgid_tbl->hw_id[index] = (u16)-1;
 207
 208         /* unlock */
 209         return 0;
 210 }
 211
 212 int bnxt_qplib_add_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
 213                         struct bnxt_qplib_gid *gid, u8 *smac, u16 vlan_id,
 214                         bool update, u32 *index)
 215 {
 216         struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
 217                                                    struct bnxt_qplib_res,
 218                                                    sgid_tbl);
 219         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 220         int i, free_idx;
 221
 222         if (!sgid_tbl) {
 223                 dev_err(&res->pdev->dev, "QPLIB: SGID table not allocated");
 224                 return -EINVAL;
 225         }
 226         /* Do we need a sgid_lock here? */
 227         if (sgid_tbl->active == sgid_tbl->max) {
 228                 dev_err(&res->pdev->dev, "QPLIB: SGID table is full");
 229                 return -ENOMEM;
 230         }
 231         free_idx = sgid_tbl->max;
 232         for (i = 0; i < sgid_tbl->max; i++) {
 233                 if (!memcmp(&sgid_tbl->tbl[i], gid, sizeof(*gid))) {
 234                         dev_dbg(&res->pdev->dev,
 235                                 "QPLIB: SGID entry already exist in entry %d!",
 236                                 i);
 237                         *index = i;
 238                         return -EALREADY;
 239                 } else if (!memcmp(&sgid_tbl->tbl[i], &bnxt_qplib_gid_zero,
 240                                    sizeof(bnxt_qplib_gid_zero)) &&
 241                            free_idx == sgid_tbl->max) {
 242                         free_idx = i;
 243                 }
 244         }
 245         if (free_idx == sgid_tbl->max) {
 246                 dev_err(&res->pdev->dev,
 247                         "QPLIB: SGID table is FULL but count is not MAX??");
 248                 return -ENOMEM;
 249         }
 250         if (update) {
 251                 struct cmdq_add_gid req;
 252                 struct creq_add_gid_resp resp;
 253                 u16 cmd_flags = 0;
 254                 u32 temp32[4];
 255                 u16 temp16[3];
 256                 int rc;
 257
 258                 RCFW_CMD_PREP(req, ADD_GID, cmd_flags);
 259
 260                 memcpy(temp32, gid->data, sizeof(struct bnxt_qplib_gid));
 261                 req.gid[0] = cpu_to_be32(temp32[3]);
 262                 req.gid[1] = cpu_to_be32(temp32[2]);
 263                 req.gid[2] = cpu_to_be32(temp32[1]);
 264                 req.gid[3] = cpu_to_be32(temp32[0]);
 265                 if (vlan_id != 0xFFFF)
 266                         req.vlan = cpu_to_le16((vlan_id &
 267                                         CMDQ_ADD_GID_VLAN_VLAN_ID_MASK) |
 268                                         CMDQ_ADD_GID_VLAN_TPID_TPID_8100 |
 269                                         CMDQ_ADD_GID_VLAN_VLAN_EN);
 270
 271                 /* MAC in network format */
 272                 memcpy(temp16, smac, 6);
 273                 req.src_mac[0] = cpu_to_be16(temp16[0]);
 274                 req.src_mac[1] = cpu_to_be16(temp16[1]);
 275                 req.src_mac[2] = cpu_to_be16(temp16[2]);
 276
 277                 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 278                                                   (void *)&resp, NULL, 0);
 279                 if (rc)
 280                         return rc;
 281                 sgid_tbl->hw_id[free_idx] = le32_to_cpu(resp.xid);
 282         }
 283         /* Add GID to the sgid_tbl */
 284         memcpy(&sgid_tbl->tbl[free_idx], gid, sizeof(*gid));
 285         sgid_tbl->active++;
 286         dev_dbg(&res->pdev->dev,
 287                 "QPLIB: SGID added hw_id[0x%x] = 0x%x active = 0x%x",
 288                  free_idx, sgid_tbl->hw_id[free_idx], sgid_tbl->active);
 289
 290         *index = free_idx;
 291         /* unlock */
 292         return 0;
 293 }
 294
 295 /* pkeys */
 296 int bnxt_qplib_get_pkey(struct bnxt_qplib_res *res,
 297                         struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 index,
 298                         u16 *pkey)
 299 {
 300         if (index == 0xFFFF) {
 301                 *pkey = 0xFFFF;
 302                 return 0;
 303         }
 304         if (index > pkey_tbl->max) {
 305                 dev_err(&res->pdev->dev,
 306                         "QPLIB: Index %d exceeded PKEY table max (%d)",
 307                         index, pkey_tbl->max);
 308                 return -EINVAL;
 309         }
 310         memcpy(pkey, &pkey_tbl->tbl[index], sizeof(*pkey));
 311         return 0;
 312 }
 313
 314 int bnxt_qplib_del_pkey(struct bnxt_qplib_res *res,
 315                         struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey,
 316                         bool update)
 317 {
 318         int i, rc = 0;
 319
 320         if (!pkey_tbl) {
 321                 dev_err(&res->pdev->dev, "QPLIB: PKEY table not allocated");
 322                 return -EINVAL;
 323         }
 324
 325         /* Do we need a pkey_lock here? */
 326         if (!pkey_tbl->active) {
 327                 dev_err(&res->pdev->dev,
 328                         "QPLIB: PKEY table has no active entries");
 329                 return -ENOMEM;
 330         }
 331         for (i = 0; i < pkey_tbl->max; i++) {
 332                 if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey)))
 333                         break;
 334         }
 335         if (i == pkey_tbl->max) {
 336                 dev_err(&res->pdev->dev,
 337                         "QPLIB: PKEY 0x%04x not found in the pkey table",
 338                         *pkey);
 339                 return -ENOMEM;
 340         }
 341         memset(&pkey_tbl->tbl[i], 0, sizeof(*pkey));
 342         pkey_tbl->active--;
 343
 344         /* unlock */
 345         return rc;
 346 }
 347
 348 int bnxt_qplib_add_pkey(struct bnxt_qplib_res *res,
 349                         struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey,
 350                         bool update)
 351 {
 352         int i, free_idx, rc = 0;
 353
 354         if (!pkey_tbl) {
 355                 dev_err(&res->pdev->dev, "QPLIB: PKEY table not allocated");
 356                 return -EINVAL;
 357         }
 358
 359         /* Do we need a pkey_lock here? */
 360         if (pkey_tbl->active == pkey_tbl->max) {
 361                 dev_err(&res->pdev->dev, "QPLIB: PKEY table is full");
 362                 return -ENOMEM;
 363         }
 364         free_idx = pkey_tbl->max;
 365         for (i = 0; i < pkey_tbl->max; i++) {
 366                 if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey)))
 367                         return -EALREADY;
 368                 else if (!pkey_tbl->tbl[i] && free_idx == pkey_tbl->max)
 369                         free_idx = i;
 370         }
 371         if (free_idx == pkey_tbl->max) {
 372                 dev_err(&res->pdev->dev,
 373                         "QPLIB: PKEY table is FULL but count is not MAX??");
 374                 return -ENOMEM;
 375         }
 376         /* Add PKEY to the pkey_tbl */
 377         memcpy(&pkey_tbl->tbl[free_idx], pkey, sizeof(*pkey));
 378         pkey_tbl->active++;
 379
 380         /* unlock */
 381         return rc;
 382 }
 383
 384 /* AH */
 385 int bnxt_qplib_create_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah)
 386 {
 387         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 388         struct cmdq_create_ah req;
 389         struct creq_create_ah_resp resp;
 390         u16 cmd_flags = 0;
 391         u32 temp32[4];
 392         u16 temp16[3];
 393         int rc;
 394
 395         RCFW_CMD_PREP(req, CREATE_AH, cmd_flags);
 396
 397         memcpy(temp32, ah->dgid.data, sizeof(struct bnxt_qplib_gid));
 398         req.dgid[0] = cpu_to_le32(temp32[0]);
 399         req.dgid[1] = cpu_to_le32(temp32[1]);
 400         req.dgid[2] = cpu_to_le32(temp32[2]);
 401         req.dgid[3] = cpu_to_le32(temp32[3]);
 402
 403         req.type = ah->nw_type;
 404         req.hop_limit = ah->hop_limit;
 405         req.sgid_index = cpu_to_le16(res->sgid_tbl.hw_id[ah->sgid_index]);
 406         req.dest_vlan_id_flow_label = cpu_to_le32((ah->flow_label &
 407                                         CMDQ_CREATE_AH_FLOW_LABEL_MASK) |
 408                                         CMDQ_CREATE_AH_DEST_VLAN_ID_MASK);
 409         req.pd_id = cpu_to_le32(ah->pd->id);
 410         req.traffic_class = ah->traffic_class;
 411
 412         /* MAC in network format */
 413         memcpy(temp16, ah->dmac, 6);
 414         req.dest_mac[0] = cpu_to_le16(temp16[0]);
 415         req.dest_mac[1] = cpu_to_le16(temp16[1]);
 416         req.dest_mac[2] = cpu_to_le16(temp16[2]);
 417
 418         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 419                                           NULL, 1);
 420         if (rc)
 421                 return rc;
 422
 423         ah->id = le32_to_cpu(resp.xid);
 424         return 0;
 425 }
 426
 427 int bnxt_qplib_destroy_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah)
 428 {
 429         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 430         struct cmdq_destroy_ah req;
 431         struct creq_destroy_ah_resp resp;
 432         u16 cmd_flags = 0;
 433         int rc;
 434
 435         /* Clean up the AH table in the device */
 436         RCFW_CMD_PREP(req, DESTROY_AH, cmd_flags);
 437
 438         req.ah_cid = cpu_to_le32(ah->id);
 439
 440         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 441                                           NULL, 1);
 442         if (rc)
 443                 return rc;
 444         return 0;
 445 }
 446
 447 /* MRW */
 448 int bnxt_qplib_free_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw)
 449 {
 450         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 451         struct cmdq_deallocate_key req;
 452         struct creq_deallocate_key_resp resp;
 453         u16 cmd_flags = 0;
 454         int rc;
 455
 456         if (mrw->lkey == 0xFFFFFFFF) {
 457                 dev_info(&res->pdev->dev,
 458                          "QPLIB: SP: Free a reserved lkey MRW");
 459                 return 0;
 460         }
 461
 462         RCFW_CMD_PREP(req, DEALLOCATE_KEY, cmd_flags);
 463
 464         req.mrw_flags = mrw->type;
 465
 466         if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1)  ||
 467             (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) ||
 468             (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B))
 469                 req.key = cpu_to_le32(mrw->rkey);
 470         else
 471                 req.key = cpu_to_le32(mrw->lkey);
 472
 473         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 474                                           NULL, 0);
 475         if (rc)
 476                 return rc;
 477
 478         /* Free the qplib's MRW memory */
 479         if (mrw->hwq.max_elements)
 480                 bnxt_qplib_free_hwq(res->pdev, &mrw->hwq);
 481
 482         return 0;
 483 }
 484
 485 int bnxt_qplib_alloc_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw)
 486 {
 487         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 488         struct cmdq_allocate_mrw req;
 489         struct creq_allocate_mrw_resp resp;
 490         u16 cmd_flags = 0;
 491         unsigned long tmp;
 492         int rc;
 493
 494         RCFW_CMD_PREP(req, ALLOCATE_MRW, cmd_flags);
 495
 496         req.pd_id = cpu_to_le32(mrw->pd->id);
 497         req.mrw_flags = mrw->type;
 498         if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_PMR &&
 499              mrw->flags & BNXT_QPLIB_FR_PMR) ||
 500             mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A ||
 501             mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B)
 502                 req.access = CMDQ_ALLOCATE_MRW_ACCESS_CONSUMER_OWNED_KEY;
 503         tmp = (unsigned long)mrw;
 504         req.mrw_handle = cpu_to_le64(tmp);
 505
 506         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 507                                           (void *)&resp, NULL, 0);
 508         if (rc)
 509                 return rc;
 510
 511         if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1)  ||
 512             (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) ||
 513             (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B))
 514                 mrw->rkey = le32_to_cpu(resp.xid);
 515         else
 516                 mrw->lkey = le32_to_cpu(resp.xid);
 517         return 0;
 518 }
 519
 520 int bnxt_qplib_dereg_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw,
 521                          bool block)
 522 {
 523         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 524         struct cmdq_deregister_mr req;
 525         struct creq_deregister_mr_resp resp;
 526         u16 cmd_flags = 0;
 527         int rc;
 528
 529         RCFW_CMD_PREP(req, DEREGISTER_MR, cmd_flags);
 530
 531         req.lkey = cpu_to_le32(mrw->lkey);
 532         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 533                                           (void *)&resp, NULL, block);
 534         if (rc)
 535                 return rc;
 536
 537         /* Free the qplib's MR memory */
 538         if (mrw->hwq.max_elements) {
 539                 mrw->va = 0;
 540                 mrw->total_size = 0;
 541                 bnxt_qplib_free_hwq(res->pdev, &mrw->hwq);
 542         }
 543
 544         return 0;
 545 }
 546
 547 int bnxt_qplib_reg_mr(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mr,
 548                       u64 *pbl_tbl, int num_pbls, bool block)
 549 {
 550         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 551         struct cmdq_register_mr req;
 552         struct creq_register_mr_resp resp;
 553         u16 cmd_flags = 0, level;
 554         int pg_ptrs, pages, i, rc;
 555         dma_addr_t **pbl_ptr;
 556         u32 pg_size;
 557
 558         if (num_pbls) {
 559                 pg_ptrs = roundup_pow_of_two(num_pbls);
 560                 pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT;
 561                 if (!pages)
 562                         pages++;
 563
 564                 if (pages > MAX_PBL_LVL_1_PGS) {
 565                         dev_err(&res->pdev->dev, "QPLIB: SP: Reg MR pages ");
 566                         dev_err(&res->pdev->dev,
 567                                 "requested (0x%x) exceeded max (0x%x)",
 568                                 pages, MAX_PBL_LVL_1_PGS);
 569                         return -ENOMEM;
 570                 }
 571                 /* Free the hwq if it already exist, must be a rereg */
 572                 if (mr->hwq.max_elements)
 573                         bnxt_qplib_free_hwq(res->pdev, &mr->hwq);
 574
 575                 mr->hwq.max_elements = pages;
 576                 rc = bnxt_qplib_alloc_init_hwq(res->pdev, &mr->hwq, NULL, 0,
 577                                                &mr->hwq.max_elements,
 578                                                PAGE_SIZE, 0, PAGE_SIZE,
 579                                                HWQ_TYPE_CTX);
 580                 if (rc) {
 581                         dev_err(&res->pdev->dev,
 582                                 "SP: Reg MR memory allocation failed");
 583                         return -ENOMEM;
 584                 }
 585                 /* Write to the hwq */
 586                 pbl_ptr = (dma_addr_t **)mr->hwq.pbl_ptr;
 587                 for (i = 0; i < num_pbls; i++)
 588                         pbl_ptr[PTR_PG(i)][PTR_IDX(i)] =
 589                                 (pbl_tbl[i] & PAGE_MASK) | PTU_PTE_VALID;
 590         }
 591
 592         RCFW_CMD_PREP(req, REGISTER_MR, cmd_flags);
 593
 594         /* Configure the request */
 595         if (mr->hwq.level == PBL_LVL_MAX) {
 596                 level = 0;
 597                 req.pbl = 0;
 598                 pg_size = PAGE_SIZE;
 599         } else {
 600                 level = mr->hwq.level + 1;
 601                 req.pbl = cpu_to_le64(mr->hwq.pbl[PBL_LVL_0].pg_map_arr[0]);
 602                 pg_size = mr->hwq.pbl[PBL_LVL_0].pg_size;
 603         }
 604         req.log2_pg_size_lvl = (level << CMDQ_REGISTER_MR_LVL_SFT) |
 605                                ((ilog2(pg_size) <<
 606                                  CMDQ_REGISTER_MR_LOG2_PG_SIZE_SFT) &
 607                                 CMDQ_REGISTER_MR_LOG2_PG_SIZE_MASK);
 608         req.access = (mr->flags & 0xFFFF);
 609         req.va = cpu_to_le64(mr->va);
 610         req.key = cpu_to_le32(mr->lkey);
 611         req.mr_size = cpu_to_le64(mr->total_size);
 612
 613         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 614                                           (void *)&resp, NULL, block);
 615         if (rc)
 616                 goto fail;
 617
 618         return 0;
 619
 620 fail:
 621         if (mr->hwq.max_elements)
 622                 bnxt_qplib_free_hwq(res->pdev, &mr->hwq);
 623         return rc;
 624 }
 625
 626 int bnxt_qplib_alloc_fast_reg_page_list(struct bnxt_qplib_res *res,
 627                                         struct bnxt_qplib_frpl *frpl,
 628                                         int max_pg_ptrs)
 629 {
 630         int pg_ptrs, pages, rc;
 631
 632         /* Re-calculate the max to fit the HWQ allocation model */
 633         pg_ptrs = roundup_pow_of_two(max_pg_ptrs);
 634         pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT;
 635         if (!pages)
 636                 pages++;
 637
 638         if (pages > MAX_PBL_LVL_1_PGS)
 639                 return -ENOMEM;
 640
 641         frpl->hwq.max_elements = pages;
 642         rc = bnxt_qplib_alloc_init_hwq(res->pdev, &frpl->hwq, NULL, 0,
 643                                        &frpl->hwq.max_elements, PAGE_SIZE, 0,
 644                                        PAGE_SIZE, HWQ_TYPE_CTX);
 645         if (!rc)
 646                 frpl->max_pg_ptrs = pg_ptrs;
 647
 648         return rc;
 649 }
 650
 651 int bnxt_qplib_free_fast_reg_page_list(struct bnxt_qplib_res *res,
 652                                        struct bnxt_qplib_frpl *frpl)
 653 {
 654         bnxt_qplib_free_hwq(res->pdev, &frpl->hwq);
 655         return 0;
 656 }
 657
 658 int bnxt_qplib_map_tc2cos(struct bnxt_qplib_res *res, u16 *cids)
 659 {
 660         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 661         struct cmdq_map_tc_to_cos req;
 662         struct creq_map_tc_to_cos_resp resp;
 663         u16 cmd_flags = 0;
 664         int rc = 0;
 665
 666         RCFW_CMD_PREP(req, MAP_TC_TO_COS, cmd_flags);
 667         req.cos0 = cpu_to_le16(cids[0]);
 668         req.cos1 = cpu_to_le16(cids[1]);
 669
 670         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 671                                           (void *)&resp, NULL, 0);
 672         return 0;
 673 }