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