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#define dev_fmt(fmt) "QPLIB: " fmt
  40
  41#include <linux/interrupt.h>
  42#include <linux/spinlock.h>
  43#include <linux/sched.h>
  44#include <linux/pci.h>
  45
  46#include "roce_hsi.h"
  47
  48#include "qplib_res.h"
  49#include "qplib_rcfw.h"
  50#include "qplib_sp.h"
  51
  52const struct bnxt_qplib_gid bnxt_qplib_gid_zero = {{ 0, 0, 0, 0, 0, 0, 0, 0,
  53                                                     0, 0, 0, 0, 0, 0, 0, 0 } };
  54
  55/* Device */
  56
  57static void bnxt_qplib_query_version(struct bnxt_qplib_rcfw *rcfw,
  58                                     char *fw_ver)
  59{
  60        struct cmdq_query_version req;
  61        struct creq_query_version_resp resp;
  62        u16 cmd_flags = 0;
  63        int rc = 0;
  64
  65        RCFW_CMD_PREP(req, QUERY_VERSION, cmd_flags);
  66
  67        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
  68                                          (void *)&resp, NULL, 0);
  69        if (rc)
  70                return;
  71        fw_ver[0] = resp.fw_maj;
  72        fw_ver[1] = resp.fw_minor;
  73        fw_ver[2] = resp.fw_bld;
  74        fw_ver[3] = resp.fw_rsvd;
  75}
  76
  77int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw,
  78                            struct bnxt_qplib_dev_attr *attr, bool vf)
  79{
  80        struct cmdq_query_func req;
  81        struct creq_query_func_resp resp;
  82        struct bnxt_qplib_rcfw_sbuf *sbuf;
  83        struct creq_query_func_resp_sb *sb;
  84        u16 cmd_flags = 0;
  85        u32 temp;
  86        u8 *tqm_alloc;
  87        int i, rc = 0;
  88
  89        RCFW_CMD_PREP(req, QUERY_FUNC, cmd_flags);
  90
  91        sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb));
  92        if (!sbuf) {
  93                dev_err(&rcfw->pdev->dev,
  94                        "SP: QUERY_FUNC alloc side buffer failed\n");
  95                return -ENOMEM;
  96        }
  97
  98        sb = sbuf->sb;
  99        req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS;
 100        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 101                                          (void *)sbuf, 0);
 102        if (rc)
 103                goto bail;
 104
 105        /* Extract the context from the side buffer */
 106        attr->max_qp = le32_to_cpu(sb->max_qp);
 107        /* max_qp value reported by FW for PF doesn't include the QP1 for PF */
 108        if (!vf)
 109                attr->max_qp += 1;
 110        attr->max_qp_rd_atom =
 111                sb->max_qp_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ?
 112                BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_rd_atom;
 113        attr->max_qp_init_rd_atom =
 114                sb->max_qp_init_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ?
 115                BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_init_rd_atom;
 116        attr->max_qp_wqes = le16_to_cpu(sb->max_qp_wr);
 117        /*
 118         * 128 WQEs needs to be reserved for the HW (8916). Prevent
 119         * reporting the max number
 120         */
 121        attr->max_qp_wqes -= BNXT_QPLIB_RESERVED_QP_WRS + 1;
 122        attr->max_qp_sges = bnxt_qplib_is_chip_gen_p5(rcfw->res->cctx) ?
 123                            6 : sb->max_sge;
 124        attr->max_cq = le32_to_cpu(sb->max_cq);
 125        attr->max_cq_wqes = le32_to_cpu(sb->max_cqe);
 126        attr->max_cq_sges = attr->max_qp_sges;
 127        attr->max_mr = le32_to_cpu(sb->max_mr);
 128        attr->max_mw = le32_to_cpu(sb->max_mw);
 129
 130        attr->max_mr_size = le64_to_cpu(sb->max_mr_size);
 131        attr->max_pd = 64 * 1024;
 132        attr->max_raw_ethy_qp = le32_to_cpu(sb->max_raw_eth_qp);
 133        attr->max_ah = le32_to_cpu(sb->max_ah);
 134
 135        attr->max_srq = le16_to_cpu(sb->max_srq);
 136        attr->max_srq_wqes = le32_to_cpu(sb->max_srq_wr) - 1;
 137        attr->max_srq_sges = sb->max_srq_sge;
 138        attr->max_pkey = le32_to_cpu(sb->max_pkeys);
 139        /*
 140         * Some versions of FW reports more than 0xFFFF.
 141         * Restrict it for now to 0xFFFF to avoid
 142         * reporting trucated value
 143         */
 144        if (attr->max_pkey > 0xFFFF) {
 145                /* ib_port_attr::pkey_tbl_len is u16 */
 146                attr->max_pkey = 0xFFFF;
 147        }
 148
 149        attr->max_inline_data = le32_to_cpu(sb->max_inline_data);
 150        attr->l2_db_size = (sb->l2_db_space_size + 1) *
 151                            (0x01 << RCFW_DBR_BASE_PAGE_SHIFT);
 152        attr->max_sgid = BNXT_QPLIB_NUM_GIDS_SUPPORTED;
 153
 154        bnxt_qplib_query_version(rcfw, attr->fw_ver);
 155
 156        for (i = 0; i < MAX_TQM_ALLOC_REQ / 4; i++) {
 157                temp = le32_to_cpu(sb->tqm_alloc_reqs[i]);
 158                tqm_alloc = (u8 *)&temp;
 159                attr->tqm_alloc_reqs[i * 4] = *tqm_alloc;
 160                attr->tqm_alloc_reqs[i * 4 + 1] = *(++tqm_alloc);
 161                attr->tqm_alloc_reqs[i * 4 + 2] = *(++tqm_alloc);
 162                attr->tqm_alloc_reqs[i * 4 + 3] = *(++tqm_alloc);
 163        }
 164
 165        attr->is_atomic = false;
 166bail:
 167        bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
 168        return rc;
 169}
 170
 171int bnxt_qplib_set_func_resources(struct bnxt_qplib_res *res,
 172                                  struct bnxt_qplib_rcfw *rcfw,
 173                                  struct bnxt_qplib_ctx *ctx)
 174{
 175        struct cmdq_set_func_resources req;
 176        struct creq_set_func_resources_resp resp;
 177        u16 cmd_flags = 0;
 178        int rc = 0;
 179
 180        RCFW_CMD_PREP(req, SET_FUNC_RESOURCES, cmd_flags);
 181
 182        req.number_of_qp = cpu_to_le32(ctx->qpc_count);
 183        req.number_of_mrw = cpu_to_le32(ctx->mrw_count);
 184        req.number_of_srq =  cpu_to_le32(ctx->srqc_count);
 185        req.number_of_cq = cpu_to_le32(ctx->cq_count);
 186
 187        req.max_qp_per_vf = cpu_to_le32(ctx->vf_res.max_qp_per_vf);
 188        req.max_mrw_per_vf = cpu_to_le32(ctx->vf_res.max_mrw_per_vf);
 189        req.max_srq_per_vf = cpu_to_le32(ctx->vf_res.max_srq_per_vf);
 190        req.max_cq_per_vf = cpu_to_le32(ctx->vf_res.max_cq_per_vf);
 191        req.max_gid_per_vf = cpu_to_le32(ctx->vf_res.max_gid_per_vf);
 192
 193        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 194                                          (void *)&resp,
 195                                          NULL, 0);
 196        if (rc) {
 197                dev_err(&res->pdev->dev, "Failed to set function resources\n");
 198        }
 199        return rc;
 200}
 201
 202/* SGID */
 203int bnxt_qplib_get_sgid(struct bnxt_qplib_res *res,
 204                        struct bnxt_qplib_sgid_tbl *sgid_tbl, int index,
 205                        struct bnxt_qplib_gid *gid)
 206{
 207        if (index >= sgid_tbl->max) {
 208                dev_err(&res->pdev->dev,
 209                        "Index %d exceeded SGID table max (%d)\n",
 210                        index, sgid_tbl->max);
 211                return -EINVAL;
 212        }
 213        memcpy(gid, &sgid_tbl->tbl[index].gid, sizeof(*gid));
 214        return 0;
 215}
 216
 217int bnxt_qplib_del_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
 218                        struct bnxt_qplib_gid *gid, u16 vlan_id, bool update)
 219{
 220        struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
 221                                                   struct bnxt_qplib_res,
 222                                                   sgid_tbl);
 223        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 224        int index;
 225
 226        if (!sgid_tbl) {
 227                dev_err(&res->pdev->dev, "SGID table not allocated\n");
 228                return -EINVAL;
 229        }
 230        /* Do we need a sgid_lock here? */
 231        if (!sgid_tbl->active) {
 232                dev_err(&res->pdev->dev, "SGID table has no active entries\n");
 233                return -ENOMEM;
 234        }
 235        for (index = 0; index < sgid_tbl->max; index++) {
 236                if (!memcmp(&sgid_tbl->tbl[index].gid, gid, sizeof(*gid)) &&
 237                    vlan_id == sgid_tbl->tbl[index].vlan_id)
 238                        break;
 239        }
 240        if (index == sgid_tbl->max) {
 241                dev_warn(&res->pdev->dev, "GID not found in the SGID table\n");
 242                return 0;
 243        }
 244        /* Remove GID from the SGID table */
 245        if (update) {
 246                struct cmdq_delete_gid req;
 247                struct creq_delete_gid_resp resp;
 248                u16 cmd_flags = 0;
 249                int rc;
 250
 251                RCFW_CMD_PREP(req, DELETE_GID, cmd_flags);
 252                if (sgid_tbl->hw_id[index] == 0xFFFF) {
 253                        dev_err(&res->pdev->dev,
 254                                "GID entry contains an invalid HW id\n");
 255                        return -EINVAL;
 256                }
 257                req.gid_index = cpu_to_le16(sgid_tbl->hw_id[index]);
 258                rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 259                                                  (void *)&resp, NULL, 0);
 260                if (rc)
 261                        return rc;
 262        }
 263        memcpy(&sgid_tbl->tbl[index].gid, &bnxt_qplib_gid_zero,
 264               sizeof(bnxt_qplib_gid_zero));
 265        sgid_tbl->tbl[index].vlan_id = 0xFFFF;
 266        sgid_tbl->vlan[index] = 0;
 267        sgid_tbl->active--;
 268        dev_dbg(&res->pdev->dev,
 269                "SGID deleted hw_id[0x%x] = 0x%x active = 0x%x\n",
 270                 index, sgid_tbl->hw_id[index], sgid_tbl->active);
 271        sgid_tbl->hw_id[index] = (u16)-1;
 272
 273        /* unlock */
 274        return 0;
 275}
 276
 277int bnxt_qplib_add_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
 278                        struct bnxt_qplib_gid *gid, u8 *smac, u16 vlan_id,
 279                        bool update, u32 *index)
 280{
 281        struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
 282                                                   struct bnxt_qplib_res,
 283                                                   sgid_tbl);
 284        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 285        int i, free_idx;
 286
 287        if (!sgid_tbl) {
 288                dev_err(&res->pdev->dev, "SGID table not allocated\n");
 289                return -EINVAL;
 290        }
 291        /* Do we need a sgid_lock here? */
 292        if (sgid_tbl->active == sgid_tbl->max) {
 293                dev_err(&res->pdev->dev, "SGID table is full\n");
 294                return -ENOMEM;
 295        }
 296        free_idx = sgid_tbl->max;
 297        for (i = 0; i < sgid_tbl->max; i++) {
 298                if (!memcmp(&sgid_tbl->tbl[i], gid, sizeof(*gid)) &&
 299                    sgid_tbl->tbl[i].vlan_id == vlan_id) {
 300                        dev_dbg(&res->pdev->dev,
 301                                "SGID entry already exist in entry %d!\n", i);
 302                        *index = i;
 303                        return -EALREADY;
 304                } else if (!memcmp(&sgid_tbl->tbl[i], &bnxt_qplib_gid_zero,
 305                                   sizeof(bnxt_qplib_gid_zero)) &&
 306                           free_idx == sgid_tbl->max) {
 307                        free_idx = i;
 308                }
 309        }
 310        if (free_idx == sgid_tbl->max) {
 311                dev_err(&res->pdev->dev,
 312                        "SGID table is FULL but count is not MAX??\n");
 313                return -ENOMEM;
 314        }
 315        if (update) {
 316                struct cmdq_add_gid req;
 317                struct creq_add_gid_resp resp;
 318                u16 cmd_flags = 0;
 319                int rc;
 320
 321                RCFW_CMD_PREP(req, ADD_GID, cmd_flags);
 322
 323                req.gid[0] = cpu_to_be32(((u32 *)gid->data)[3]);
 324                req.gid[1] = cpu_to_be32(((u32 *)gid->data)[2]);
 325                req.gid[2] = cpu_to_be32(((u32 *)gid->data)[1]);
 326                req.gid[3] = cpu_to_be32(((u32 *)gid->data)[0]);
 327                /*
 328                 * driver should ensure that all RoCE traffic is always VLAN
 329                 * tagged if RoCE traffic is running on non-zero VLAN ID or
 330                 * RoCE traffic is running on non-zero Priority.
 331                 */
 332                if ((vlan_id != 0xFFFF) || res->prio) {
 333                        if (vlan_id != 0xFFFF)
 334                                req.vlan = cpu_to_le16
 335                                (vlan_id & CMDQ_ADD_GID_VLAN_VLAN_ID_MASK);
 336                        req.vlan |= cpu_to_le16
 337                                        (CMDQ_ADD_GID_VLAN_TPID_TPID_8100 |
 338                                         CMDQ_ADD_GID_VLAN_VLAN_EN);
 339                }
 340
 341                /* MAC in network format */
 342                req.src_mac[0] = cpu_to_be16(((u16 *)smac)[0]);
 343                req.src_mac[1] = cpu_to_be16(((u16 *)smac)[1]);
 344                req.src_mac[2] = cpu_to_be16(((u16 *)smac)[2]);
 345
 346                rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 347                                                  (void *)&resp, NULL, 0);
 348                if (rc)
 349                        return rc;
 350                sgid_tbl->hw_id[free_idx] = le32_to_cpu(resp.xid);
 351        }
 352        /* Add GID to the sgid_tbl */
 353        memcpy(&sgid_tbl->tbl[free_idx], gid, sizeof(*gid));
 354        sgid_tbl->tbl[free_idx].vlan_id = vlan_id;
 355        sgid_tbl->active++;
 356        if (vlan_id != 0xFFFF)
 357                sgid_tbl->vlan[free_idx] = 1;
 358
 359        dev_dbg(&res->pdev->dev,
 360                "SGID added hw_id[0x%x] = 0x%x active = 0x%x\n",
 361                 free_idx, sgid_tbl->hw_id[free_idx], sgid_tbl->active);
 362
 363        *index = free_idx;
 364        /* unlock */
 365        return 0;
 366}
 367
 368int bnxt_qplib_update_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
 369                           struct bnxt_qplib_gid *gid, u16 gid_idx,
 370                           u8 *smac)
 371{
 372        struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
 373                                                   struct bnxt_qplib_res,
 374                                                   sgid_tbl);
 375        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 376        struct creq_modify_gid_resp resp;
 377        struct cmdq_modify_gid req;
 378        int rc;
 379        u16 cmd_flags = 0;
 380
 381        RCFW_CMD_PREP(req, MODIFY_GID, cmd_flags);
 382
 383        req.gid[0] = cpu_to_be32(((u32 *)gid->data)[3]);
 384        req.gid[1] = cpu_to_be32(((u32 *)gid->data)[2]);
 385        req.gid[2] = cpu_to_be32(((u32 *)gid->data)[1]);
 386        req.gid[3] = cpu_to_be32(((u32 *)gid->data)[0]);
 387        if (res->prio) {
 388                req.vlan |= cpu_to_le16
 389                        (CMDQ_ADD_GID_VLAN_TPID_TPID_8100 |
 390                         CMDQ_ADD_GID_VLAN_VLAN_EN);
 391        }
 392
 393        /* MAC in network format */
 394        req.src_mac[0] = cpu_to_be16(((u16 *)smac)[0]);
 395        req.src_mac[1] = cpu_to_be16(((u16 *)smac)[1]);
 396        req.src_mac[2] = cpu_to_be16(((u16 *)smac)[2]);
 397
 398        req.gid_index = cpu_to_le16(gid_idx);
 399
 400        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 401                                          (void *)&resp, NULL, 0);
 402        return rc;
 403}
 404
 405/* pkeys */
 406int bnxt_qplib_get_pkey(struct bnxt_qplib_res *res,
 407                        struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 index,
 408                        u16 *pkey)
 409{
 410        if (index == 0xFFFF) {
 411                *pkey = 0xFFFF;
 412                return 0;
 413        }
 414        if (index >= pkey_tbl->max) {
 415                dev_err(&res->pdev->dev,
 416                        "Index %d exceeded PKEY table max (%d)\n",
 417                        index, pkey_tbl->max);
 418                return -EINVAL;
 419        }
 420        memcpy(pkey, &pkey_tbl->tbl[index], sizeof(*pkey));
 421        return 0;
 422}
 423
 424int bnxt_qplib_del_pkey(struct bnxt_qplib_res *res,
 425                        struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey,
 426                        bool update)
 427{
 428        int i, rc = 0;
 429
 430        if (!pkey_tbl) {
 431                dev_err(&res->pdev->dev, "PKEY table not allocated\n");
 432                return -EINVAL;
 433        }
 434
 435        /* Do we need a pkey_lock here? */
 436        if (!pkey_tbl->active) {
 437                dev_err(&res->pdev->dev, "PKEY table has no active entries\n");
 438                return -ENOMEM;
 439        }
 440        for (i = 0; i < pkey_tbl->max; i++) {
 441                if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey)))
 442                        break;
 443        }
 444        if (i == pkey_tbl->max) {
 445                dev_err(&res->pdev->dev,
 446                        "PKEY 0x%04x not found in the pkey table\n", *pkey);
 447                return -ENOMEM;
 448        }
 449        memset(&pkey_tbl->tbl[i], 0, sizeof(*pkey));
 450        pkey_tbl->active--;
 451
 452        /* unlock */
 453        return rc;
 454}
 455
 456int bnxt_qplib_add_pkey(struct bnxt_qplib_res *res,
 457                        struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey,
 458                        bool update)
 459{
 460        int i, free_idx, rc = 0;
 461
 462        if (!pkey_tbl) {
 463                dev_err(&res->pdev->dev, "PKEY table not allocated\n");
 464                return -EINVAL;
 465        }
 466
 467        /* Do we need a pkey_lock here? */
 468        if (pkey_tbl->active == pkey_tbl->max) {
 469                dev_err(&res->pdev->dev, "PKEY table is full\n");
 470                return -ENOMEM;
 471        }
 472        free_idx = pkey_tbl->max;
 473        for (i = 0; i < pkey_tbl->max; i++) {
 474                if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey)))
 475                        return -EALREADY;
 476                else if (!pkey_tbl->tbl[i] && free_idx == pkey_tbl->max)
 477                        free_idx = i;
 478        }
 479        if (free_idx == pkey_tbl->max) {
 480                dev_err(&res->pdev->dev,
 481                        "PKEY table is FULL but count is not MAX??\n");
 482                return -ENOMEM;
 483        }
 484        /* Add PKEY to the pkey_tbl */
 485        memcpy(&pkey_tbl->tbl[free_idx], pkey, sizeof(*pkey));
 486        pkey_tbl->active++;
 487
 488        /* unlock */
 489        return rc;
 490}
 491
 492/* AH */
 493int bnxt_qplib_create_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah,
 494                         bool block)
 495{
 496        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 497        struct cmdq_create_ah req;
 498        struct creq_create_ah_resp resp;
 499        u16 cmd_flags = 0;
 500        u32 temp32[4];
 501        u16 temp16[3];
 502        int rc;
 503
 504        RCFW_CMD_PREP(req, CREATE_AH, cmd_flags);
 505
 506        memcpy(temp32, ah->dgid.data, sizeof(struct bnxt_qplib_gid));
 507        req.dgid[0] = cpu_to_le32(temp32[0]);
 508        req.dgid[1] = cpu_to_le32(temp32[1]);
 509        req.dgid[2] = cpu_to_le32(temp32[2]);
 510        req.dgid[3] = cpu_to_le32(temp32[3]);
 511
 512        req.type = ah->nw_type;
 513        req.hop_limit = ah->hop_limit;
 514        req.sgid_index = cpu_to_le16(res->sgid_tbl.hw_id[ah->sgid_index]);
 515        req.dest_vlan_id_flow_label = cpu_to_le32((ah->flow_label &
 516                                        CMDQ_CREATE_AH_FLOW_LABEL_MASK) |
 517                                        CMDQ_CREATE_AH_DEST_VLAN_ID_MASK);
 518        req.pd_id = cpu_to_le32(ah->pd->id);
 519        req.traffic_class = ah->traffic_class;
 520
 521        /* MAC in network format */
 522        memcpy(temp16, ah->dmac, 6);
 523        req.dest_mac[0] = cpu_to_le16(temp16[0]);
 524        req.dest_mac[1] = cpu_to_le16(temp16[1]);
 525        req.dest_mac[2] = cpu_to_le16(temp16[2]);
 526
 527        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 528                                          NULL, block);
 529        if (rc)
 530                return rc;
 531
 532        ah->id = le32_to_cpu(resp.xid);
 533        return 0;
 534}
 535
 536void bnxt_qplib_destroy_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah,
 537                           bool block)
 538{
 539        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 540        struct cmdq_destroy_ah req;
 541        struct creq_destroy_ah_resp resp;
 542        u16 cmd_flags = 0;
 543
 544        /* Clean up the AH table in the device */
 545        RCFW_CMD_PREP(req, DESTROY_AH, cmd_flags);
 546
 547        req.ah_cid = cpu_to_le32(ah->id);
 548
 549        bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, NULL,
 550                                     block);
 551}
 552
 553/* MRW */
 554int bnxt_qplib_free_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw)
 555{
 556        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 557        struct cmdq_deallocate_key req;
 558        struct creq_deallocate_key_resp resp;
 559        u16 cmd_flags = 0;
 560        int rc;
 561
 562        if (mrw->lkey == 0xFFFFFFFF) {
 563                dev_info(&res->pdev->dev, "SP: Free a reserved lkey MRW\n");
 564                return 0;
 565        }
 566
 567        RCFW_CMD_PREP(req, DEALLOCATE_KEY, cmd_flags);
 568
 569        req.mrw_flags = mrw->type;
 570
 571        if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1)  ||
 572            (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) ||
 573            (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B))
 574                req.key = cpu_to_le32(mrw->rkey);
 575        else
 576                req.key = cpu_to_le32(mrw->lkey);
 577
 578        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 579                                          NULL, 0);
 580        if (rc)
 581                return rc;
 582
 583        /* Free the qplib's MRW memory */
 584        if (mrw->hwq.max_elements)
 585                bnxt_qplib_free_hwq(res, &mrw->hwq);
 586
 587        return 0;
 588}
 589
 590int bnxt_qplib_alloc_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw)
 591{
 592        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 593        struct cmdq_allocate_mrw req;
 594        struct creq_allocate_mrw_resp resp;
 595        u16 cmd_flags = 0;
 596        unsigned long tmp;
 597        int rc;
 598
 599        RCFW_CMD_PREP(req, ALLOCATE_MRW, cmd_flags);
 600
 601        req.pd_id = cpu_to_le32(mrw->pd->id);
 602        req.mrw_flags = mrw->type;
 603        if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_PMR &&
 604             mrw->flags & BNXT_QPLIB_FR_PMR) ||
 605            mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A ||
 606            mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B)
 607                req.access = CMDQ_ALLOCATE_MRW_ACCESS_CONSUMER_OWNED_KEY;
 608        tmp = (unsigned long)mrw;
 609        req.mrw_handle = cpu_to_le64(tmp);
 610
 611        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 612                                          (void *)&resp, NULL, 0);
 613        if (rc)
 614                return rc;
 615
 616        if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1)  ||
 617            (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) ||
 618            (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B))
 619                mrw->rkey = le32_to_cpu(resp.xid);
 620        else
 621                mrw->lkey = le32_to_cpu(resp.xid);
 622        return 0;
 623}
 624
 625int bnxt_qplib_dereg_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw,
 626                         bool block)
 627{
 628        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 629        struct cmdq_deregister_mr req;
 630        struct creq_deregister_mr_resp resp;
 631        u16 cmd_flags = 0;
 632        int rc;
 633
 634        RCFW_CMD_PREP(req, DEREGISTER_MR, cmd_flags);
 635
 636        req.lkey = cpu_to_le32(mrw->lkey);
 637        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 638                                          (void *)&resp, NULL, block);
 639        if (rc)
 640                return rc;
 641
 642        /* Free the qplib's MR memory */
 643        if (mrw->hwq.max_elements) {
 644                mrw->va = 0;
 645                mrw->total_size = 0;
 646                bnxt_qplib_free_hwq(res, &mrw->hwq);
 647        }
 648
 649        return 0;
 650}
 651
 652int bnxt_qplib_reg_mr(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mr,
 653                      struct ib_umem *umem, int num_pbls, u32 buf_pg_size)
 654{
 655        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 656        struct bnxt_qplib_hwq_attr hwq_attr = {};
 657        struct bnxt_qplib_sg_info sginfo = {};
 658        struct creq_register_mr_resp resp;
 659        struct cmdq_register_mr req;
 660        u16 cmd_flags = 0, level;
 661        int pages, rc;
 662        u32 pg_size;
 663
 664        if (num_pbls) {
 665                pages = roundup_pow_of_two(num_pbls);
 666                /* Allocate memory for the non-leaf pages to store buf ptrs.
 667                 * Non-leaf pages always uses system PAGE_SIZE
 668                 */
 669                /* Free the hwq if it already exist, must be a rereg */
 670                if (mr->hwq.max_elements)
 671                        bnxt_qplib_free_hwq(res, &mr->hwq);
 672                /* Use system PAGE_SIZE */
 673                hwq_attr.res = res;
 674                hwq_attr.depth = pages;
 675                hwq_attr.stride = buf_pg_size;
 676                hwq_attr.type = HWQ_TYPE_MR;
 677                hwq_attr.sginfo = &sginfo;
 678                hwq_attr.sginfo->umem = umem;
 679                hwq_attr.sginfo->npages = pages;
 680                hwq_attr.sginfo->pgsize = PAGE_SIZE;
 681                hwq_attr.sginfo->pgshft = PAGE_SHIFT;
 682                rc = bnxt_qplib_alloc_init_hwq(&mr->hwq, &hwq_attr);
 683                if (rc) {
 684                        dev_err(&res->pdev->dev,
 685                                "SP: Reg MR memory allocation failed\n");
 686                        return -ENOMEM;
 687                }
 688        }
 689
 690        RCFW_CMD_PREP(req, REGISTER_MR, cmd_flags);
 691
 692        /* Configure the request */
 693        if (mr->hwq.level == PBL_LVL_MAX) {
 694                /* No PBL provided, just use system PAGE_SIZE */
 695                level = 0;
 696                req.pbl = 0;
 697                pg_size = PAGE_SIZE;
 698        } else {
 699                level = mr->hwq.level;
 700                req.pbl = cpu_to_le64(mr->hwq.pbl[PBL_LVL_0].pg_map_arr[0]);
 701        }
 702        pg_size = buf_pg_size ? buf_pg_size : PAGE_SIZE;
 703        req.log2_pg_size_lvl = (level << CMDQ_REGISTER_MR_LVL_SFT) |
 704                               ((ilog2(pg_size) <<
 705                                 CMDQ_REGISTER_MR_LOG2_PG_SIZE_SFT) &
 706                                CMDQ_REGISTER_MR_LOG2_PG_SIZE_MASK);
 707        req.log2_pbl_pg_size = cpu_to_le16(((ilog2(PAGE_SIZE) <<
 708                                 CMDQ_REGISTER_MR_LOG2_PBL_PG_SIZE_SFT) &
 709                                CMDQ_REGISTER_MR_LOG2_PBL_PG_SIZE_MASK));
 710        req.access = (mr->flags & 0xFFFF);
 711        req.va = cpu_to_le64(mr->va);
 712        req.key = cpu_to_le32(mr->lkey);
 713        req.mr_size = cpu_to_le64(mr->total_size);
 714
 715        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 716                                          (void *)&resp, NULL, false);
 717        if (rc)
 718                goto fail;
 719
 720        return 0;
 721
 722fail:
 723        if (mr->hwq.max_elements)
 724                bnxt_qplib_free_hwq(res, &mr->hwq);
 725        return rc;
 726}
 727
 728int bnxt_qplib_alloc_fast_reg_page_list(struct bnxt_qplib_res *res,
 729                                        struct bnxt_qplib_frpl *frpl,
 730                                        int max_pg_ptrs)
 731{
 732        struct bnxt_qplib_hwq_attr hwq_attr = {};
 733        struct bnxt_qplib_sg_info sginfo = {};
 734        int pg_ptrs, pages, rc;
 735
 736        /* Re-calculate the max to fit the HWQ allocation model */
 737        pg_ptrs = roundup_pow_of_two(max_pg_ptrs);
 738        pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT;
 739        if (!pages)
 740                pages++;
 741
 742        if (pages > MAX_PBL_LVL_1_PGS)
 743                return -ENOMEM;
 744
 745        sginfo.pgsize = PAGE_SIZE;
 746        sginfo.nopte = true;
 747
 748        hwq_attr.res = res;
 749        hwq_attr.depth = pg_ptrs;
 750        hwq_attr.stride = PAGE_SIZE;
 751        hwq_attr.sginfo = &sginfo;
 752        hwq_attr.type = HWQ_TYPE_CTX;
 753        rc = bnxt_qplib_alloc_init_hwq(&frpl->hwq, &hwq_attr);
 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, &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        return bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 779                                                NULL, 0);
 780}
 781
 782int bnxt_qplib_get_roce_stats(struct bnxt_qplib_rcfw *rcfw,
 783                              struct bnxt_qplib_roce_stats *stats)
 784{
 785        struct cmdq_query_roce_stats req;
 786        struct creq_query_roce_stats_resp resp;
 787        struct bnxt_qplib_rcfw_sbuf *sbuf;
 788        struct creq_query_roce_stats_resp_sb *sb;
 789        u16 cmd_flags = 0;
 790        int rc = 0;
 791
 792        RCFW_CMD_PREP(req, QUERY_ROCE_STATS, cmd_flags);
 793
 794        sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb));
 795        if (!sbuf) {
 796                dev_err(&rcfw->pdev->dev,
 797                        "SP: QUERY_ROCE_STATS alloc side buffer failed\n");
 798                return -ENOMEM;
 799        }
 800
 801        sb = sbuf->sb;
 802        req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS;
 803        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 804                                          (void *)sbuf, 0);
 805        if (rc)
 806                goto bail;
 807        /* Extract the context from the side buffer */
 808        stats->to_retransmits = le64_to_cpu(sb->to_retransmits);
 809        stats->seq_err_naks_rcvd = le64_to_cpu(sb->seq_err_naks_rcvd);
 810        stats->max_retry_exceeded = le64_to_cpu(sb->max_retry_exceeded);
 811        stats->rnr_naks_rcvd = le64_to_cpu(sb->rnr_naks_rcvd);
 812        stats->missing_resp = le64_to_cpu(sb->missing_resp);
 813        stats->unrecoverable_err = le64_to_cpu(sb->unrecoverable_err);
 814        stats->bad_resp_err = le64_to_cpu(sb->bad_resp_err);
 815        stats->local_qp_op_err = le64_to_cpu(sb->local_qp_op_err);
 816        stats->local_protection_err = le64_to_cpu(sb->local_protection_err);
 817        stats->mem_mgmt_op_err = le64_to_cpu(sb->mem_mgmt_op_err);
 818        stats->remote_invalid_req_err = le64_to_cpu(sb->remote_invalid_req_err);
 819        stats->remote_access_err = le64_to_cpu(sb->remote_access_err);
 820        stats->remote_op_err = le64_to_cpu(sb->remote_op_err);
 821        stats->dup_req = le64_to_cpu(sb->dup_req);
 822        stats->res_exceed_max = le64_to_cpu(sb->res_exceed_max);
 823        stats->res_length_mismatch = le64_to_cpu(sb->res_length_mismatch);
 824        stats->res_exceeds_wqe = le64_to_cpu(sb->res_exceeds_wqe);
 825        stats->res_opcode_err = le64_to_cpu(sb->res_opcode_err);
 826        stats->res_rx_invalid_rkey = le64_to_cpu(sb->res_rx_invalid_rkey);
 827        stats->res_rx_domain_err = le64_to_cpu(sb->res_rx_domain_err);
 828        stats->res_rx_no_perm = le64_to_cpu(sb->res_rx_no_perm);
 829        stats->res_rx_range_err = le64_to_cpu(sb->res_rx_range_err);
 830        stats->res_tx_invalid_rkey = le64_to_cpu(sb->res_tx_invalid_rkey);
 831        stats->res_tx_domain_err = le64_to_cpu(sb->res_tx_domain_err);
 832        stats->res_tx_no_perm = le64_to_cpu(sb->res_tx_no_perm);
 833        stats->res_tx_range_err = le64_to_cpu(sb->res_tx_range_err);
 834        stats->res_irrq_oflow = le64_to_cpu(sb->res_irrq_oflow);
 835        stats->res_unsup_opcode = le64_to_cpu(sb->res_unsup_opcode);
 836        stats->res_unaligned_atomic = le64_to_cpu(sb->res_unaligned_atomic);
 837        stats->res_rem_inv_err = le64_to_cpu(sb->res_rem_inv_err);
 838        stats->res_mem_error = le64_to_cpu(sb->res_mem_error);
 839        stats->res_srq_err = le64_to_cpu(sb->res_srq_err);
 840        stats->res_cmp_err = le64_to_cpu(sb->res_cmp_err);
 841        stats->res_invalid_dup_rkey = le64_to_cpu(sb->res_invalid_dup_rkey);
 842        stats->res_wqe_format_err = le64_to_cpu(sb->res_wqe_format_err);
 843        stats->res_cq_load_err = le64_to_cpu(sb->res_cq_load_err);
 844        stats->res_srq_load_err = le64_to_cpu(sb->res_srq_load_err);
 845        stats->res_tx_pci_err = le64_to_cpu(sb->res_tx_pci_err);
 846        stats->res_rx_pci_err = le64_to_cpu(sb->res_rx_pci_err);
 847        if (!rcfw->init_oos_stats) {
 848                rcfw->oos_prev = le64_to_cpu(sb->res_oos_drop_count);
 849                rcfw->init_oos_stats = 1;
 850        } else {
 851                stats->res_oos_drop_count +=
 852                                (le64_to_cpu(sb->res_oos_drop_count) -
 853                                 rcfw->oos_prev) & BNXT_QPLIB_OOS_COUNT_MASK;
 854                rcfw->oos_prev = le64_to_cpu(sb->res_oos_drop_count);
 855        }
 856
 857bail:
 858        bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
 859        return rc;
 860}
 861