linux/drivers/infiniband/hw/bnxt_re/qplib_sp.c
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   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
  50const 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
  55static void bnxt_qplib_query_version(struct bnxt_qplib_rcfw *rcfw,
  56                                     char *fw_ver)
  57{
  58        struct cmdq_query_version req;
  59        struct creq_query_version_resp resp;
  60        u16 cmd_flags = 0;
  61        int rc = 0;
  62
  63        RCFW_CMD_PREP(req, QUERY_VERSION, cmd_flags);
  64
  65        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
  66                                          (void *)&resp, NULL, 0);
  67        if (rc)
  68                return;
  69        fw_ver[0] = resp.fw_maj;
  70        fw_ver[1] = resp.fw_minor;
  71        fw_ver[2] = resp.fw_bld;
  72        fw_ver[3] = resp.fw_rsvd;
  73}
  74
  75int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw,
  76                            struct bnxt_qplib_dev_attr *attr, bool vf)
  77{
  78        struct cmdq_query_func req;
  79        struct creq_query_func_resp resp;
  80        struct bnxt_qplib_rcfw_sbuf *sbuf;
  81        struct creq_query_func_resp_sb *sb;
  82        u16 cmd_flags = 0;
  83        u32 temp;
  84        u8 *tqm_alloc;
  85        int i, rc = 0;
  86
  87        RCFW_CMD_PREP(req, QUERY_FUNC, cmd_flags);
  88
  89        sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb));
  90        if (!sbuf) {
  91                dev_err(&rcfw->pdev->dev,
  92                        "QPLIB: SP: QUERY_FUNC alloc side buffer failed");
  93                return -ENOMEM;
  94        }
  95
  96        sb = sbuf->sb;
  97        req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS;
  98        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
  99                                          (void *)sbuf, 0);
 100        if (rc)
 101                goto bail;
 102
 103        /* Extract the context from the side buffer */
 104        attr->max_qp = le32_to_cpu(sb->max_qp);
 105        /* max_qp value reported by FW for PF doesn't include the QP1 for PF */
 106        if (!vf)
 107                attr->max_qp += 1;
 108        attr->max_qp_rd_atom =
 109                sb->max_qp_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ?
 110                BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_rd_atom;
 111        attr->max_qp_init_rd_atom =
 112                sb->max_qp_init_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ?
 113                BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_init_rd_atom;
 114        attr->max_qp_wqes = le16_to_cpu(sb->max_qp_wr);
 115        /*
 116         * 128 WQEs needs to be reserved for the HW (8916). Prevent
 117         * reporting the max number
 118         */
 119        attr->max_qp_wqes -= BNXT_QPLIB_RESERVED_QP_WRS;
 120        attr->max_qp_sges = sb->max_sge;
 121        attr->max_cq = le32_to_cpu(sb->max_cq);
 122        attr->max_cq_wqes = le32_to_cpu(sb->max_cqe);
 123        attr->max_cq_sges = attr->max_qp_sges;
 124        attr->max_mr = le32_to_cpu(sb->max_mr);
 125        attr->max_mw = le32_to_cpu(sb->max_mw);
 126
 127        attr->max_mr_size = le64_to_cpu(sb->max_mr_size);
 128        attr->max_pd = 64 * 1024;
 129        attr->max_raw_ethy_qp = le32_to_cpu(sb->max_raw_eth_qp);
 130        attr->max_ah = le32_to_cpu(sb->max_ah);
 131
 132        attr->max_fmr = le32_to_cpu(sb->max_fmr);
 133        attr->max_map_per_fmr = sb->max_map_per_fmr;
 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        /* Bono only reports 1 PKEY for now, but it can support > 1 */
 139        attr->max_pkey = le32_to_cpu(sb->max_pkeys);
 140
 141        attr->max_inline_data = le32_to_cpu(sb->max_inline_data);
 142        attr->l2_db_size = (sb->l2_db_space_size + 1) *
 143                            (0x01 << RCFW_DBR_BASE_PAGE_SHIFT);
 144        attr->max_sgid = le32_to_cpu(sb->max_gid);
 145
 146        bnxt_qplib_query_version(rcfw, attr->fw_ver);
 147
 148        for (i = 0; i < MAX_TQM_ALLOC_REQ / 4; i++) {
 149                temp = le32_to_cpu(sb->tqm_alloc_reqs[i]);
 150                tqm_alloc = (u8 *)&temp;
 151                attr->tqm_alloc_reqs[i * 4] = *tqm_alloc;
 152                attr->tqm_alloc_reqs[i * 4 + 1] = *(++tqm_alloc);
 153                attr->tqm_alloc_reqs[i * 4 + 2] = *(++tqm_alloc);
 154                attr->tqm_alloc_reqs[i * 4 + 3] = *(++tqm_alloc);
 155        }
 156
 157        attr->is_atomic = 0;
 158bail:
 159        bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
 160        return rc;
 161}
 162
 163int bnxt_qplib_set_func_resources(struct bnxt_qplib_res *res,
 164                                  struct bnxt_qplib_rcfw *rcfw,
 165                                  struct bnxt_qplib_ctx *ctx)
 166{
 167        struct cmdq_set_func_resources req;
 168        struct creq_set_func_resources_resp resp;
 169        u16 cmd_flags = 0;
 170        int rc = 0;
 171
 172        RCFW_CMD_PREP(req, SET_FUNC_RESOURCES, cmd_flags);
 173
 174        req.number_of_qp = cpu_to_le32(ctx->qpc_count);
 175        req.number_of_mrw = cpu_to_le32(ctx->mrw_count);
 176        req.number_of_srq =  cpu_to_le32(ctx->srqc_count);
 177        req.number_of_cq = cpu_to_le32(ctx->cq_count);
 178
 179        req.max_qp_per_vf = cpu_to_le32(ctx->vf_res.max_qp_per_vf);
 180        req.max_mrw_per_vf = cpu_to_le32(ctx->vf_res.max_mrw_per_vf);
 181        req.max_srq_per_vf = cpu_to_le32(ctx->vf_res.max_srq_per_vf);
 182        req.max_cq_per_vf = cpu_to_le32(ctx->vf_res.max_cq_per_vf);
 183        req.max_gid_per_vf = cpu_to_le32(ctx->vf_res.max_gid_per_vf);
 184
 185        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 186                                          (void *)&resp,
 187                                          NULL, 0);
 188        if (rc) {
 189                dev_err(&res->pdev->dev,
 190                        "QPLIB: Failed to set function resources");
 191        }
 192        return rc;
 193}
 194
 195/* SGID */
 196int bnxt_qplib_get_sgid(struct bnxt_qplib_res *res,
 197                        struct bnxt_qplib_sgid_tbl *sgid_tbl, int index,
 198                        struct bnxt_qplib_gid *gid)
 199{
 200        if (index > sgid_tbl->max) {
 201                dev_err(&res->pdev->dev,
 202                        "QPLIB: Index %d exceeded SGID table max (%d)",
 203                        index, sgid_tbl->max);
 204                return -EINVAL;
 205        }
 206        memcpy(gid, &sgid_tbl->tbl[index], sizeof(*gid));
 207        return 0;
 208}
 209
 210int bnxt_qplib_del_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
 211                        struct bnxt_qplib_gid *gid, bool update)
 212{
 213        struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
 214                                                   struct bnxt_qplib_res,
 215                                                   sgid_tbl);
 216        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 217        int index;
 218
 219        if (!sgid_tbl) {
 220                dev_err(&res->pdev->dev, "QPLIB: SGID table not allocated");
 221                return -EINVAL;
 222        }
 223        /* Do we need a sgid_lock here? */
 224        if (!sgid_tbl->active) {
 225                dev_err(&res->pdev->dev,
 226                        "QPLIB: SGID table has no active entries");
 227                return -ENOMEM;
 228        }
 229        for (index = 0; index < sgid_tbl->max; index++) {
 230                if (!memcmp(&sgid_tbl->tbl[index], gid, sizeof(*gid)))
 231                        break;
 232        }
 233        if (index == sgid_tbl->max) {
 234                dev_warn(&res->pdev->dev, "GID not found in the SGID table");
 235                return 0;
 236        }
 237        /* Remove GID from the SGID table */
 238        if (update) {
 239                struct cmdq_delete_gid req;
 240                struct creq_delete_gid_resp resp;
 241                u16 cmd_flags = 0;
 242                int rc;
 243
 244                RCFW_CMD_PREP(req, DELETE_GID, cmd_flags);
 245                if (sgid_tbl->hw_id[index] == 0xFFFF) {
 246                        dev_err(&res->pdev->dev,
 247                                "QPLIB: GID entry contains an invalid HW id");
 248                        return -EINVAL;
 249                }
 250                req.gid_index = cpu_to_le16(sgid_tbl->hw_id[index]);
 251                rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 252                                                  (void *)&resp, NULL, 0);
 253                if (rc)
 254                        return rc;
 255        }
 256        memcpy(&sgid_tbl->tbl[index], &bnxt_qplib_gid_zero,
 257               sizeof(bnxt_qplib_gid_zero));
 258        sgid_tbl->vlan[index] = 0;
 259        sgid_tbl->active--;
 260        dev_dbg(&res->pdev->dev,
 261                "QPLIB: SGID deleted hw_id[0x%x] = 0x%x active = 0x%x",
 262                 index, sgid_tbl->hw_id[index], sgid_tbl->active);
 263        sgid_tbl->hw_id[index] = (u16)-1;
 264
 265        /* unlock */
 266        return 0;
 267}
 268
 269int bnxt_qplib_add_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
 270                        struct bnxt_qplib_gid *gid, u8 *smac, u16 vlan_id,
 271                        bool update, u32 *index)
 272{
 273        struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
 274                                                   struct bnxt_qplib_res,
 275                                                   sgid_tbl);
 276        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 277        int i, free_idx;
 278
 279        if (!sgid_tbl) {
 280                dev_err(&res->pdev->dev, "QPLIB: SGID table not allocated");
 281                return -EINVAL;
 282        }
 283        /* Do we need a sgid_lock here? */
 284        if (sgid_tbl->active == sgid_tbl->max) {
 285                dev_err(&res->pdev->dev, "QPLIB: SGID table is full");
 286                return -ENOMEM;
 287        }
 288        free_idx = sgid_tbl->max;
 289        for (i = 0; i < sgid_tbl->max; i++) {
 290                if (!memcmp(&sgid_tbl->tbl[i], gid, sizeof(*gid))) {
 291                        dev_dbg(&res->pdev->dev,
 292                                "QPLIB: SGID entry already exist in entry %d!",
 293                                i);
 294                        *index = i;
 295                        return -EALREADY;
 296                } else if (!memcmp(&sgid_tbl->tbl[i], &bnxt_qplib_gid_zero,
 297                                   sizeof(bnxt_qplib_gid_zero)) &&
 298                           free_idx == sgid_tbl->max) {
 299                        free_idx = i;
 300                }
 301        }
 302        if (free_idx == sgid_tbl->max) {
 303                dev_err(&res->pdev->dev,
 304                        "QPLIB: SGID table is FULL but count is not MAX??");
 305                return -ENOMEM;
 306        }
 307        if (update) {
 308                struct cmdq_add_gid req;
 309                struct creq_add_gid_resp resp;
 310                u16 cmd_flags = 0;
 311                int rc;
 312
 313                RCFW_CMD_PREP(req, ADD_GID, cmd_flags);
 314
 315                req.gid[0] = cpu_to_be32(((u32 *)gid->data)[3]);
 316                req.gid[1] = cpu_to_be32(((u32 *)gid->data)[2]);
 317                req.gid[2] = cpu_to_be32(((u32 *)gid->data)[1]);
 318                req.gid[3] = cpu_to_be32(((u32 *)gid->data)[0]);
 319                /*
 320                 * driver should ensure that all RoCE traffic is always VLAN
 321                 * tagged if RoCE traffic is running on non-zero VLAN ID or
 322                 * RoCE traffic is running on non-zero Priority.
 323                 */
 324                if ((vlan_id != 0xFFFF) || res->prio) {
 325                        if (vlan_id != 0xFFFF)
 326                                req.vlan = cpu_to_le16
 327                                (vlan_id & CMDQ_ADD_GID_VLAN_VLAN_ID_MASK);
 328                        req.vlan |= cpu_to_le16
 329                                        (CMDQ_ADD_GID_VLAN_TPID_TPID_8100 |
 330                                         CMDQ_ADD_GID_VLAN_VLAN_EN);
 331                }
 332
 333                /* MAC in network format */
 334                req.src_mac[0] = cpu_to_be16(((u16 *)smac)[0]);
 335                req.src_mac[1] = cpu_to_be16(((u16 *)smac)[1]);
 336                req.src_mac[2] = cpu_to_be16(((u16 *)smac)[2]);
 337
 338                rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 339                                                  (void *)&resp, NULL, 0);
 340                if (rc)
 341                        return rc;
 342                sgid_tbl->hw_id[free_idx] = le32_to_cpu(resp.xid);
 343        }
 344        /* Add GID to the sgid_tbl */
 345        memcpy(&sgid_tbl->tbl[free_idx], gid, sizeof(*gid));
 346        sgid_tbl->active++;
 347        if (vlan_id != 0xFFFF)
 348                sgid_tbl->vlan[free_idx] = 1;
 349
 350        dev_dbg(&res->pdev->dev,
 351                "QPLIB: SGID added hw_id[0x%x] = 0x%x active = 0x%x",
 352                 free_idx, sgid_tbl->hw_id[free_idx], sgid_tbl->active);
 353
 354        *index = free_idx;
 355        /* unlock */
 356        return 0;
 357}
 358
 359int bnxt_qplib_update_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
 360                           struct bnxt_qplib_gid *gid, u16 gid_idx,
 361                           u8 *smac)
 362{
 363        struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
 364                                                   struct bnxt_qplib_res,
 365                                                   sgid_tbl);
 366        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 367        struct creq_modify_gid_resp resp;
 368        struct cmdq_modify_gid req;
 369        int rc;
 370        u16 cmd_flags = 0;
 371
 372        RCFW_CMD_PREP(req, MODIFY_GID, cmd_flags);
 373
 374        req.gid[0] = cpu_to_be32(((u32 *)gid->data)[3]);
 375        req.gid[1] = cpu_to_be32(((u32 *)gid->data)[2]);
 376        req.gid[2] = cpu_to_be32(((u32 *)gid->data)[1]);
 377        req.gid[3] = cpu_to_be32(((u32 *)gid->data)[0]);
 378        if (res->prio) {
 379                req.vlan |= cpu_to_le16
 380                        (CMDQ_ADD_GID_VLAN_TPID_TPID_8100 |
 381                         CMDQ_ADD_GID_VLAN_VLAN_EN);
 382        }
 383
 384        /* MAC in network format */
 385        req.src_mac[0] = cpu_to_be16(((u16 *)smac)[0]);
 386        req.src_mac[1] = cpu_to_be16(((u16 *)smac)[1]);
 387        req.src_mac[2] = cpu_to_be16(((u16 *)smac)[2]);
 388
 389        req.gid_index = cpu_to_le16(gid_idx);
 390
 391        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 392                                          (void *)&resp, NULL, 0);
 393        return rc;
 394}
 395
 396/* pkeys */
 397int bnxt_qplib_get_pkey(struct bnxt_qplib_res *res,
 398                        struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 index,
 399                        u16 *pkey)
 400{
 401        if (index == 0xFFFF) {
 402                *pkey = 0xFFFF;
 403                return 0;
 404        }
 405        if (index > pkey_tbl->max) {
 406                dev_err(&res->pdev->dev,
 407                        "QPLIB: Index %d exceeded PKEY table max (%d)",
 408                        index, pkey_tbl->max);
 409                return -EINVAL;
 410        }
 411        memcpy(pkey, &pkey_tbl->tbl[index], sizeof(*pkey));
 412        return 0;
 413}
 414
 415int bnxt_qplib_del_pkey(struct bnxt_qplib_res *res,
 416                        struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey,
 417                        bool update)
 418{
 419        int i, rc = 0;
 420
 421        if (!pkey_tbl) {
 422                dev_err(&res->pdev->dev, "QPLIB: PKEY table not allocated");
 423                return -EINVAL;
 424        }
 425
 426        /* Do we need a pkey_lock here? */
 427        if (!pkey_tbl->active) {
 428                dev_err(&res->pdev->dev,
 429                        "QPLIB: PKEY table has no active entries");
 430                return -ENOMEM;
 431        }
 432        for (i = 0; i < pkey_tbl->max; i++) {
 433                if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey)))
 434                        break;
 435        }
 436        if (i == pkey_tbl->max) {
 437                dev_err(&res->pdev->dev,
 438                        "QPLIB: PKEY 0x%04x not found in the pkey table",
 439                        *pkey);
 440                return -ENOMEM;
 441        }
 442        memset(&pkey_tbl->tbl[i], 0, sizeof(*pkey));
 443        pkey_tbl->active--;
 444
 445        /* unlock */
 446        return rc;
 447}
 448
 449int bnxt_qplib_add_pkey(struct bnxt_qplib_res *res,
 450                        struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey,
 451                        bool update)
 452{
 453        int i, free_idx, rc = 0;
 454
 455        if (!pkey_tbl) {
 456                dev_err(&res->pdev->dev, "QPLIB: PKEY table not allocated");
 457                return -EINVAL;
 458        }
 459
 460        /* Do we need a pkey_lock here? */
 461        if (pkey_tbl->active == pkey_tbl->max) {
 462                dev_err(&res->pdev->dev, "QPLIB: PKEY table is full");
 463                return -ENOMEM;
 464        }
 465        free_idx = pkey_tbl->max;
 466        for (i = 0; i < pkey_tbl->max; i++) {
 467                if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey)))
 468                        return -EALREADY;
 469                else if (!pkey_tbl->tbl[i] && free_idx == pkey_tbl->max)
 470                        free_idx = i;
 471        }
 472        if (free_idx == pkey_tbl->max) {
 473                dev_err(&res->pdev->dev,
 474                        "QPLIB: PKEY table is FULL but count is not MAX??");
 475                return -ENOMEM;
 476        }
 477        /* Add PKEY to the pkey_tbl */
 478        memcpy(&pkey_tbl->tbl[free_idx], pkey, sizeof(*pkey));
 479        pkey_tbl->active++;
 480
 481        /* unlock */
 482        return rc;
 483}
 484
 485/* AH */
 486int bnxt_qplib_create_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah)
 487{
 488        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 489        struct cmdq_create_ah req;
 490        struct creq_create_ah_resp resp;
 491        u16 cmd_flags = 0;
 492        u32 temp32[4];
 493        u16 temp16[3];
 494        int rc;
 495
 496        RCFW_CMD_PREP(req, CREATE_AH, cmd_flags);
 497
 498        memcpy(temp32, ah->dgid.data, sizeof(struct bnxt_qplib_gid));
 499        req.dgid[0] = cpu_to_le32(temp32[0]);
 500        req.dgid[1] = cpu_to_le32(temp32[1]);
 501        req.dgid[2] = cpu_to_le32(temp32[2]);
 502        req.dgid[3] = cpu_to_le32(temp32[3]);
 503
 504        req.type = ah->nw_type;
 505        req.hop_limit = ah->hop_limit;
 506        req.sgid_index = cpu_to_le16(res->sgid_tbl.hw_id[ah->sgid_index]);
 507        req.dest_vlan_id_flow_label = cpu_to_le32((ah->flow_label &
 508                                        CMDQ_CREATE_AH_FLOW_LABEL_MASK) |
 509                                        CMDQ_CREATE_AH_DEST_VLAN_ID_MASK);
 510        req.pd_id = cpu_to_le32(ah->pd->id);
 511        req.traffic_class = ah->traffic_class;
 512
 513        /* MAC in network format */
 514        memcpy(temp16, ah->dmac, 6);
 515        req.dest_mac[0] = cpu_to_le16(temp16[0]);
 516        req.dest_mac[1] = cpu_to_le16(temp16[1]);
 517        req.dest_mac[2] = cpu_to_le16(temp16[2]);
 518
 519        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 520                                          NULL, 1);
 521        if (rc)
 522                return rc;
 523
 524        ah->id = le32_to_cpu(resp.xid);
 525        return 0;
 526}
 527
 528int bnxt_qplib_destroy_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah)
 529{
 530        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 531        struct cmdq_destroy_ah req;
 532        struct creq_destroy_ah_resp resp;
 533        u16 cmd_flags = 0;
 534        int rc;
 535
 536        /* Clean up the AH table in the device */
 537        RCFW_CMD_PREP(req, DESTROY_AH, cmd_flags);
 538
 539        req.ah_cid = cpu_to_le32(ah->id);
 540
 541        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 542                                          NULL, 1);
 543        if (rc)
 544                return rc;
 545        return 0;
 546}
 547
 548/* MRW */
 549int bnxt_qplib_free_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw)
 550{
 551        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 552        struct cmdq_deallocate_key req;
 553        struct creq_deallocate_key_resp resp;
 554        u16 cmd_flags = 0;
 555        int rc;
 556
 557        if (mrw->lkey == 0xFFFFFFFF) {
 558                dev_info(&res->pdev->dev,
 559                         "QPLIB: SP: Free a reserved lkey MRW");
 560                return 0;
 561        }
 562
 563        RCFW_CMD_PREP(req, DEALLOCATE_KEY, cmd_flags);
 564
 565        req.mrw_flags = mrw->type;
 566
 567        if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1)  ||
 568            (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) ||
 569            (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B))
 570                req.key = cpu_to_le32(mrw->rkey);
 571        else
 572                req.key = cpu_to_le32(mrw->lkey);
 573
 574        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 575                                          NULL, 0);
 576        if (rc)
 577                return rc;
 578
 579        /* Free the qplib's MRW memory */
 580        if (mrw->hwq.max_elements)
 581                bnxt_qplib_free_hwq(res->pdev, &mrw->hwq);
 582
 583        return 0;
 584}
 585
 586int bnxt_qplib_alloc_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw)
 587{
 588        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 589        struct cmdq_allocate_mrw req;
 590        struct creq_allocate_mrw_resp resp;
 591        u16 cmd_flags = 0;
 592        unsigned long tmp;
 593        int rc;
 594
 595        RCFW_CMD_PREP(req, ALLOCATE_MRW, cmd_flags);
 596
 597        req.pd_id = cpu_to_le32(mrw->pd->id);
 598        req.mrw_flags = mrw->type;
 599        if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_PMR &&
 600             mrw->flags & BNXT_QPLIB_FR_PMR) ||
 601            mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A ||
 602            mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B)
 603                req.access = CMDQ_ALLOCATE_MRW_ACCESS_CONSUMER_OWNED_KEY;
 604        tmp = (unsigned long)mrw;
 605        req.mrw_handle = cpu_to_le64(tmp);
 606
 607        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 608                                          (void *)&resp, NULL, 0);
 609        if (rc)
 610                return rc;
 611
 612        if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1)  ||
 613            (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) ||
 614            (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B))
 615                mrw->rkey = le32_to_cpu(resp.xid);
 616        else
 617                mrw->lkey = le32_to_cpu(resp.xid);
 618        return 0;
 619}
 620
 621int bnxt_qplib_dereg_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw,
 622                         bool block)
 623{
 624        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 625        struct cmdq_deregister_mr req;
 626        struct creq_deregister_mr_resp resp;
 627        u16 cmd_flags = 0;
 628        int rc;
 629
 630        RCFW_CMD_PREP(req, DEREGISTER_MR, cmd_flags);
 631
 632        req.lkey = cpu_to_le32(mrw->lkey);
 633        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 634                                          (void *)&resp, NULL, block);
 635        if (rc)
 636                return rc;
 637
 638        /* Free the qplib's MR memory */
 639        if (mrw->hwq.max_elements) {
 640                mrw->va = 0;
 641                mrw->total_size = 0;
 642                bnxt_qplib_free_hwq(res->pdev, &mrw->hwq);
 643        }
 644
 645        return 0;
 646}
 647
 648int bnxt_qplib_reg_mr(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mr,
 649                      u64 *pbl_tbl, int num_pbls, bool block, u32 buf_pg_size)
 650{
 651        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 652        struct cmdq_register_mr req;
 653        struct creq_register_mr_resp resp;
 654        u16 cmd_flags = 0, level;
 655        int pg_ptrs, pages, i, rc;
 656        dma_addr_t **pbl_ptr;
 657        u32 pg_size;
 658
 659        if (num_pbls) {
 660                /* Allocate memory for the non-leaf pages to store buf ptrs.
 661                 * Non-leaf pages always uses system PAGE_SIZE
 662                 */
 663                pg_ptrs = roundup_pow_of_two(num_pbls);
 664                pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT;
 665                if (!pages)
 666                        pages++;
 667
 668                if (pages > MAX_PBL_LVL_1_PGS) {
 669                        dev_err(&res->pdev->dev, "QPLIB: SP: Reg MR pages ");
 670                        dev_err(&res->pdev->dev,
 671                                "requested (0x%x) exceeded max (0x%x)",
 672                                pages, MAX_PBL_LVL_1_PGS);
 673                        return -ENOMEM;
 674                }
 675                /* Free the hwq if it already exist, must be a rereg */
 676                if (mr->hwq.max_elements)
 677                        bnxt_qplib_free_hwq(res->pdev, &mr->hwq);
 678
 679                mr->hwq.max_elements = pages;
 680                /* Use system PAGE_SIZE */
 681                rc = bnxt_qplib_alloc_init_hwq(res->pdev, &mr->hwq, NULL, 0,
 682                                               &mr->hwq.max_elements,
 683                                               PAGE_SIZE, 0, PAGE_SIZE,
 684                                               HWQ_TYPE_CTX);
 685                if (rc) {
 686                        dev_err(&res->pdev->dev,
 687                                "SP: Reg MR memory allocation failed");
 688                        return -ENOMEM;
 689                }
 690                /* Write to the hwq */
 691                pbl_ptr = (dma_addr_t **)mr->hwq.pbl_ptr;
 692                for (i = 0; i < num_pbls; i++)
 693                        pbl_ptr[PTR_PG(i)][PTR_IDX(i)] =
 694                                (pbl_tbl[i] & PAGE_MASK) | PTU_PTE_VALID;
 695        }
 696
 697        RCFW_CMD_PREP(req, REGISTER_MR, cmd_flags);
 698
 699        /* Configure the request */
 700        if (mr->hwq.level == PBL_LVL_MAX) {
 701                /* No PBL provided, just use system PAGE_SIZE */
 702                level = 0;
 703                req.pbl = 0;
 704                pg_size = PAGE_SIZE;
 705        } else {
 706                level = mr->hwq.level + 1;
 707                req.pbl = cpu_to_le64(mr->hwq.pbl[PBL_LVL_0].pg_map_arr[0]);
 708        }
 709        pg_size = buf_pg_size ? buf_pg_size : PAGE_SIZE;
 710        req.log2_pg_size_lvl = (level << CMDQ_REGISTER_MR_LVL_SFT) |
 711                               ((ilog2(pg_size) <<
 712                                 CMDQ_REGISTER_MR_LOG2_PG_SIZE_SFT) &
 713                                CMDQ_REGISTER_MR_LOG2_PG_SIZE_MASK);
 714        req.log2_pbl_pg_size = cpu_to_le16(((ilog2(PAGE_SIZE) <<
 715                                 CMDQ_REGISTER_MR_LOG2_PBL_PG_SIZE_SFT) &
 716                                CMDQ_REGISTER_MR_LOG2_PBL_PG_SIZE_MASK));
 717        req.access = (mr->flags & 0xFFFF);
 718        req.va = cpu_to_le64(mr->va);
 719        req.key = cpu_to_le32(mr->lkey);
 720        req.mr_size = cpu_to_le64(mr->total_size);
 721
 722        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 723                                          (void *)&resp, NULL, block);
 724        if (rc)
 725                goto fail;
 726
 727        return 0;
 728
 729fail:
 730        if (mr->hwq.max_elements)
 731                bnxt_qplib_free_hwq(res->pdev, &mr->hwq);
 732        return rc;
 733}
 734
 735int bnxt_qplib_alloc_fast_reg_page_list(struct bnxt_qplib_res *res,
 736                                        struct bnxt_qplib_frpl *frpl,
 737                                        int max_pg_ptrs)
 738{
 739        int pg_ptrs, pages, rc;
 740
 741        /* Re-calculate the max to fit the HWQ allocation model */
 742        pg_ptrs = roundup_pow_of_two(max_pg_ptrs);
 743        pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT;
 744        if (!pages)
 745                pages++;
 746
 747        if (pages > MAX_PBL_LVL_1_PGS)
 748                return -ENOMEM;
 749
 750        frpl->hwq.max_elements = pages;
 751        rc = bnxt_qplib_alloc_init_hwq(res->pdev, &frpl->hwq, NULL, 0,
 752                                       &frpl->hwq.max_elements, PAGE_SIZE, 0,
 753                                       PAGE_SIZE, HWQ_TYPE_CTX);
 754        if (!rc)
 755                frpl->max_pg_ptrs = pg_ptrs;
 756
 757        return rc;
 758}
 759
 760int bnxt_qplib_free_fast_reg_page_list(struct bnxt_qplib_res *res,
 761                                       struct bnxt_qplib_frpl *frpl)
 762{
 763        bnxt_qplib_free_hwq(res->pdev, &frpl->hwq);
 764        return 0;
 765}
 766
 767int bnxt_qplib_map_tc2cos(struct bnxt_qplib_res *res, u16 *cids)
 768{
 769        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 770        struct cmdq_map_tc_to_cos req;
 771        struct creq_map_tc_to_cos_resp resp;
 772        u16 cmd_flags = 0;
 773
 774        RCFW_CMD_PREP(req, MAP_TC_TO_COS, cmd_flags);
 775        req.cos0 = cpu_to_le16(cids[0]);
 776        req.cos1 = cpu_to_le16(cids[1]);
 777
 778        bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, NULL,
 779                                     0);
 780        return 0;
 781}
 782
 783int bnxt_qplib_get_roce_stats(struct bnxt_qplib_rcfw *rcfw,
 784                              struct bnxt_qplib_roce_stats *stats)
 785{
 786        struct cmdq_query_roce_stats req;
 787        struct creq_query_roce_stats_resp resp;
 788        struct bnxt_qplib_rcfw_sbuf *sbuf;
 789        struct creq_query_roce_stats_resp_sb *sb;
 790        u16 cmd_flags = 0;
 791        int rc = 0;
 792
 793        RCFW_CMD_PREP(req, QUERY_ROCE_STATS, cmd_flags);
 794
 795        sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb));
 796        if (!sbuf) {
 797                dev_err(&rcfw->pdev->dev,
 798                        "QPLIB: SP: QUERY_ROCE_STATS alloc side buffer failed");
 799                return -ENOMEM;
 800        }
 801
 802        sb = sbuf->sb;
 803        req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS;
 804        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 805                                          (void *)sbuf, 0);
 806        if (rc)
 807                goto bail;
 808        /* Extract the context from the side buffer */
 809        stats->to_retransmits = le64_to_cpu(sb->to_retransmits);
 810        stats->seq_err_naks_rcvd = le64_to_cpu(sb->seq_err_naks_rcvd);
 811        stats->max_retry_exceeded = le64_to_cpu(sb->max_retry_exceeded);
 812        stats->rnr_naks_rcvd = le64_to_cpu(sb->rnr_naks_rcvd);
 813        stats->missing_resp = le64_to_cpu(sb->missing_resp);
 814        stats->unrecoverable_err = le64_to_cpu(sb->unrecoverable_err);
 815        stats->bad_resp_err = le64_to_cpu(sb->bad_resp_err);
 816        stats->local_qp_op_err = le64_to_cpu(sb->local_qp_op_err);
 817        stats->local_protection_err = le64_to_cpu(sb->local_protection_err);
 818        stats->mem_mgmt_op_err = le64_to_cpu(sb->mem_mgmt_op_err);
 819        stats->remote_invalid_req_err = le64_to_cpu(sb->remote_invalid_req_err);
 820        stats->remote_access_err = le64_to_cpu(sb->remote_access_err);
 821        stats->remote_op_err = le64_to_cpu(sb->remote_op_err);
 822        stats->dup_req = le64_to_cpu(sb->dup_req);
 823        stats->res_exceed_max = le64_to_cpu(sb->res_exceed_max);
 824        stats->res_length_mismatch = le64_to_cpu(sb->res_length_mismatch);
 825        stats->res_exceeds_wqe = le64_to_cpu(sb->res_exceeds_wqe);
 826        stats->res_opcode_err = le64_to_cpu(sb->res_opcode_err);
 827        stats->res_rx_invalid_rkey = le64_to_cpu(sb->res_rx_invalid_rkey);
 828        stats->res_rx_domain_err = le64_to_cpu(sb->res_rx_domain_err);
 829        stats->res_rx_no_perm = le64_to_cpu(sb->res_rx_no_perm);
 830        stats->res_rx_range_err = le64_to_cpu(sb->res_rx_range_err);
 831        stats->res_tx_invalid_rkey = le64_to_cpu(sb->res_tx_invalid_rkey);
 832        stats->res_tx_domain_err = le64_to_cpu(sb->res_tx_domain_err);
 833        stats->res_tx_no_perm = le64_to_cpu(sb->res_tx_no_perm);
 834        stats->res_tx_range_err = le64_to_cpu(sb->res_tx_range_err);
 835        stats->res_irrq_oflow = le64_to_cpu(sb->res_irrq_oflow);
 836        stats->res_unsup_opcode = le64_to_cpu(sb->res_unsup_opcode);
 837        stats->res_unaligned_atomic = le64_to_cpu(sb->res_unaligned_atomic);
 838        stats->res_rem_inv_err = le64_to_cpu(sb->res_rem_inv_err);
 839        stats->res_mem_error = le64_to_cpu(sb->res_mem_error);
 840        stats->res_srq_err = le64_to_cpu(sb->res_srq_err);
 841        stats->res_cmp_err = le64_to_cpu(sb->res_cmp_err);
 842        stats->res_invalid_dup_rkey = le64_to_cpu(sb->res_invalid_dup_rkey);
 843        stats->res_wqe_format_err = le64_to_cpu(sb->res_wqe_format_err);
 844        stats->res_cq_load_err = le64_to_cpu(sb->res_cq_load_err);
 845        stats->res_srq_load_err = le64_to_cpu(sb->res_srq_load_err);
 846        stats->res_tx_pci_err = le64_to_cpu(sb->res_tx_pci_err);
 847        stats->res_rx_pci_err = le64_to_cpu(sb->res_rx_pci_err);
 848bail:
 849        bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
 850        return rc;
 851}
 852