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;
 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_fmr = le32_to_cpu(sb->max_fmr);
 136        attr->max_map_per_fmr = sb->max_map_per_fmr;
 137
 138        attr->max_srq = le16_to_cpu(sb->max_srq);
 139        attr->max_srq_wqes = le32_to_cpu(sb->max_srq_wr) - 1;
 140        attr->max_srq_sges = sb->max_srq_sge;
 141        attr->max_pkey = le32_to_cpu(sb->max_pkeys);
 142        /*
 143         * Some versions of FW reports more than 0xFFFF.
 144         * Restrict it for now to 0xFFFF to avoid
 145         * reporting trucated value
 146         */
 147        if (attr->max_pkey > 0xFFFF) {
 148                /* ib_port_attr::pkey_tbl_len is u16 */
 149                attr->max_pkey = 0xFFFF;
 150        }
 151
 152        attr->max_inline_data = le32_to_cpu(sb->max_inline_data);
 153        attr->l2_db_size = (sb->l2_db_space_size + 1) *
 154                            (0x01 << RCFW_DBR_BASE_PAGE_SHIFT);
 155        attr->max_sgid = le32_to_cpu(sb->max_gid);
 156
 157        bnxt_qplib_query_version(rcfw, attr->fw_ver);
 158
 159        for (i = 0; i < MAX_TQM_ALLOC_REQ / 4; i++) {
 160                temp = le32_to_cpu(sb->tqm_alloc_reqs[i]);
 161                tqm_alloc = (u8 *)&temp;
 162                attr->tqm_alloc_reqs[i * 4] = *tqm_alloc;
 163                attr->tqm_alloc_reqs[i * 4 + 1] = *(++tqm_alloc);
 164                attr->tqm_alloc_reqs[i * 4 + 2] = *(++tqm_alloc);
 165                attr->tqm_alloc_reqs[i * 4 + 3] = *(++tqm_alloc);
 166        }
 167
 168        attr->is_atomic = false;
 169bail:
 170        bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
 171        return rc;
 172}
 173
 174int bnxt_qplib_set_func_resources(struct bnxt_qplib_res *res,
 175                                  struct bnxt_qplib_rcfw *rcfw,
 176                                  struct bnxt_qplib_ctx *ctx)
 177{
 178        struct cmdq_set_func_resources req;
 179        struct creq_set_func_resources_resp resp;
 180        u16 cmd_flags = 0;
 181        int rc = 0;
 182
 183        RCFW_CMD_PREP(req, SET_FUNC_RESOURCES, cmd_flags);
 184
 185        req.number_of_qp = cpu_to_le32(ctx->qpc_count);
 186        req.number_of_mrw = cpu_to_le32(ctx->mrw_count);
 187        req.number_of_srq =  cpu_to_le32(ctx->srqc_count);
 188        req.number_of_cq = cpu_to_le32(ctx->cq_count);
 189
 190        req.max_qp_per_vf = cpu_to_le32(ctx->vf_res.max_qp_per_vf);
 191        req.max_mrw_per_vf = cpu_to_le32(ctx->vf_res.max_mrw_per_vf);
 192        req.max_srq_per_vf = cpu_to_le32(ctx->vf_res.max_srq_per_vf);
 193        req.max_cq_per_vf = cpu_to_le32(ctx->vf_res.max_cq_per_vf);
 194        req.max_gid_per_vf = cpu_to_le32(ctx->vf_res.max_gid_per_vf);
 195
 196        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 197                                          (void *)&resp,
 198                                          NULL, 0);
 199        if (rc) {
 200                dev_err(&res->pdev->dev, "Failed to set function resources\n");
 201        }
 202        return rc;
 203}
 204
 205/* SGID */
 206int bnxt_qplib_get_sgid(struct bnxt_qplib_res *res,
 207                        struct bnxt_qplib_sgid_tbl *sgid_tbl, int index,
 208                        struct bnxt_qplib_gid *gid)
 209{
 210        if (index >= sgid_tbl->max) {
 211                dev_err(&res->pdev->dev,
 212                        "Index %d exceeded SGID table max (%d)\n",
 213                        index, sgid_tbl->max);
 214                return -EINVAL;
 215        }
 216        memcpy(gid, &sgid_tbl->tbl[index].gid, sizeof(*gid));
 217        return 0;
 218}
 219
 220int bnxt_qplib_del_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
 221                        struct bnxt_qplib_gid *gid, u16 vlan_id, bool update)
 222{
 223        struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
 224                                                   struct bnxt_qplib_res,
 225                                                   sgid_tbl);
 226        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 227        int index;
 228
 229        if (!sgid_tbl) {
 230                dev_err(&res->pdev->dev, "SGID table not allocated\n");
 231                return -EINVAL;
 232        }
 233        /* Do we need a sgid_lock here? */
 234        if (!sgid_tbl->active) {
 235                dev_err(&res->pdev->dev, "SGID table has no active entries\n");
 236                return -ENOMEM;
 237        }
 238        for (index = 0; index < sgid_tbl->max; index++) {
 239                if (!memcmp(&sgid_tbl->tbl[index].gid, gid, sizeof(*gid)) &&
 240                    vlan_id == sgid_tbl->tbl[index].vlan_id)
 241                        break;
 242        }
 243        if (index == sgid_tbl->max) {
 244                dev_warn(&res->pdev->dev, "GID not found in the SGID table\n");
 245                return 0;
 246        }
 247        /* Remove GID from the SGID table */
 248        if (update) {
 249                struct cmdq_delete_gid req;
 250                struct creq_delete_gid_resp resp;
 251                u16 cmd_flags = 0;
 252                int rc;
 253
 254                RCFW_CMD_PREP(req, DELETE_GID, cmd_flags);
 255                if (sgid_tbl->hw_id[index] == 0xFFFF) {
 256                        dev_err(&res->pdev->dev,
 257                                "GID entry contains an invalid HW id\n");
 258                        return -EINVAL;
 259                }
 260                req.gid_index = cpu_to_le16(sgid_tbl->hw_id[index]);
 261                rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 262                                                  (void *)&resp, NULL, 0);
 263                if (rc)
 264                        return rc;
 265        }
 266        memcpy(&sgid_tbl->tbl[index].gid, &bnxt_qplib_gid_zero,
 267               sizeof(bnxt_qplib_gid_zero));
 268        sgid_tbl->tbl[index].vlan_id = 0xFFFF;
 269        sgid_tbl->vlan[index] = 0;
 270        sgid_tbl->active--;
 271        dev_dbg(&res->pdev->dev,
 272                "SGID deleted hw_id[0x%x] = 0x%x active = 0x%x\n",
 273                 index, sgid_tbl->hw_id[index], sgid_tbl->active);
 274        sgid_tbl->hw_id[index] = (u16)-1;
 275
 276        /* unlock */
 277        return 0;
 278}
 279
 280int bnxt_qplib_add_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
 281                        struct bnxt_qplib_gid *gid, u8 *smac, u16 vlan_id,
 282                        bool update, u32 *index)
 283{
 284        struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
 285                                                   struct bnxt_qplib_res,
 286                                                   sgid_tbl);
 287        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 288        int i, free_idx;
 289
 290        if (!sgid_tbl) {
 291                dev_err(&res->pdev->dev, "SGID table not allocated\n");
 292                return -EINVAL;
 293        }
 294        /* Do we need a sgid_lock here? */
 295        if (sgid_tbl->active == sgid_tbl->max) {
 296                dev_err(&res->pdev->dev, "SGID table is full\n");
 297                return -ENOMEM;
 298        }
 299        free_idx = sgid_tbl->max;
 300        for (i = 0; i < sgid_tbl->max; i++) {
 301                if (!memcmp(&sgid_tbl->tbl[i], gid, sizeof(*gid)) &&
 302                    sgid_tbl->tbl[i].vlan_id == vlan_id) {
 303                        dev_dbg(&res->pdev->dev,
 304                                "SGID entry already exist in entry %d!\n", i);
 305                        *index = i;
 306                        return -EALREADY;
 307                } else if (!memcmp(&sgid_tbl->tbl[i], &bnxt_qplib_gid_zero,
 308                                   sizeof(bnxt_qplib_gid_zero)) &&
 309                           free_idx == sgid_tbl->max) {
 310                        free_idx = i;
 311                }
 312        }
 313        if (free_idx == sgid_tbl->max) {
 314                dev_err(&res->pdev->dev,
 315                        "SGID table is FULL but count is not MAX??\n");
 316                return -ENOMEM;
 317        }
 318        if (update) {
 319                struct cmdq_add_gid req;
 320                struct creq_add_gid_resp resp;
 321                u16 cmd_flags = 0;
 322                int rc;
 323
 324                RCFW_CMD_PREP(req, ADD_GID, cmd_flags);
 325
 326                req.gid[0] = cpu_to_be32(((u32 *)gid->data)[3]);
 327                req.gid[1] = cpu_to_be32(((u32 *)gid->data)[2]);
 328                req.gid[2] = cpu_to_be32(((u32 *)gid->data)[1]);
 329                req.gid[3] = cpu_to_be32(((u32 *)gid->data)[0]);
 330                /*
 331                 * driver should ensure that all RoCE traffic is always VLAN
 332                 * tagged if RoCE traffic is running on non-zero VLAN ID or
 333                 * RoCE traffic is running on non-zero Priority.
 334                 */
 335                if ((vlan_id != 0xFFFF) || res->prio) {
 336                        if (vlan_id != 0xFFFF)
 337                                req.vlan = cpu_to_le16
 338                                (vlan_id & CMDQ_ADD_GID_VLAN_VLAN_ID_MASK);
 339                        req.vlan |= cpu_to_le16
 340                                        (CMDQ_ADD_GID_VLAN_TPID_TPID_8100 |
 341                                         CMDQ_ADD_GID_VLAN_VLAN_EN);
 342                }
 343
 344                /* MAC in network format */
 345                req.src_mac[0] = cpu_to_be16(((u16 *)smac)[0]);
 346                req.src_mac[1] = cpu_to_be16(((u16 *)smac)[1]);
 347                req.src_mac[2] = cpu_to_be16(((u16 *)smac)[2]);
 348
 349                rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 350                                                  (void *)&resp, NULL, 0);
 351                if (rc)
 352                        return rc;
 353                sgid_tbl->hw_id[free_idx] = le32_to_cpu(resp.xid);
 354        }
 355        /* Add GID to the sgid_tbl */
 356        memcpy(&sgid_tbl->tbl[free_idx], gid, sizeof(*gid));
 357        sgid_tbl->tbl[free_idx].vlan_id = vlan_id;
 358        sgid_tbl->active++;
 359        if (vlan_id != 0xFFFF)
 360                sgid_tbl->vlan[free_idx] = 1;
 361
 362        dev_dbg(&res->pdev->dev,
 363                "SGID added hw_id[0x%x] = 0x%x active = 0x%x\n",
 364                 free_idx, sgid_tbl->hw_id[free_idx], sgid_tbl->active);
 365
 366        *index = free_idx;
 367        /* unlock */
 368        return 0;
 369}
 370
 371int bnxt_qplib_update_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
 372                           struct bnxt_qplib_gid *gid, u16 gid_idx,
 373                           u8 *smac)
 374{
 375        struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
 376                                                   struct bnxt_qplib_res,
 377                                                   sgid_tbl);
 378        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 379        struct creq_modify_gid_resp resp;
 380        struct cmdq_modify_gid req;
 381        int rc;
 382        u16 cmd_flags = 0;
 383
 384        RCFW_CMD_PREP(req, MODIFY_GID, cmd_flags);
 385
 386        req.gid[0] = cpu_to_be32(((u32 *)gid->data)[3]);
 387        req.gid[1] = cpu_to_be32(((u32 *)gid->data)[2]);
 388        req.gid[2] = cpu_to_be32(((u32 *)gid->data)[1]);
 389        req.gid[3] = cpu_to_be32(((u32 *)gid->data)[0]);
 390        if (res->prio) {
 391                req.vlan |= cpu_to_le16
 392                        (CMDQ_ADD_GID_VLAN_TPID_TPID_8100 |
 393                         CMDQ_ADD_GID_VLAN_VLAN_EN);
 394        }
 395
 396        /* MAC in network format */
 397        req.src_mac[0] = cpu_to_be16(((u16 *)smac)[0]);
 398        req.src_mac[1] = cpu_to_be16(((u16 *)smac)[1]);
 399        req.src_mac[2] = cpu_to_be16(((u16 *)smac)[2]);
 400
 401        req.gid_index = cpu_to_le16(gid_idx);
 402
 403        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 404                                          (void *)&resp, NULL, 0);
 405        return rc;
 406}
 407
 408/* pkeys */
 409int bnxt_qplib_get_pkey(struct bnxt_qplib_res *res,
 410                        struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 index,
 411                        u16 *pkey)
 412{
 413        if (index == 0xFFFF) {
 414                *pkey = 0xFFFF;
 415                return 0;
 416        }
 417        if (index >= pkey_tbl->max) {
 418                dev_err(&res->pdev->dev,
 419                        "Index %d exceeded PKEY table max (%d)\n",
 420                        index, pkey_tbl->max);
 421                return -EINVAL;
 422        }
 423        memcpy(pkey, &pkey_tbl->tbl[index], sizeof(*pkey));
 424        return 0;
 425}
 426
 427int bnxt_qplib_del_pkey(struct bnxt_qplib_res *res,
 428                        struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey,
 429                        bool update)
 430{
 431        int i, rc = 0;
 432
 433        if (!pkey_tbl) {
 434                dev_err(&res->pdev->dev, "PKEY table not allocated\n");
 435                return -EINVAL;
 436        }
 437
 438        /* Do we need a pkey_lock here? */
 439        if (!pkey_tbl->active) {
 440                dev_err(&res->pdev->dev, "PKEY table has no active entries\n");
 441                return -ENOMEM;
 442        }
 443        for (i = 0; i < pkey_tbl->max; i++) {
 444                if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey)))
 445                        break;
 446        }
 447        if (i == pkey_tbl->max) {
 448                dev_err(&res->pdev->dev,
 449                        "PKEY 0x%04x not found in the pkey table\n", *pkey);
 450                return -ENOMEM;
 451        }
 452        memset(&pkey_tbl->tbl[i], 0, sizeof(*pkey));
 453        pkey_tbl->active--;
 454
 455        /* unlock */
 456        return rc;
 457}
 458
 459int bnxt_qplib_add_pkey(struct bnxt_qplib_res *res,
 460                        struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey,
 461                        bool update)
 462{
 463        int i, free_idx, rc = 0;
 464
 465        if (!pkey_tbl) {
 466                dev_err(&res->pdev->dev, "PKEY table not allocated\n");
 467                return -EINVAL;
 468        }
 469
 470        /* Do we need a pkey_lock here? */
 471        if (pkey_tbl->active == pkey_tbl->max) {
 472                dev_err(&res->pdev->dev, "PKEY table is full\n");
 473                return -ENOMEM;
 474        }
 475        free_idx = pkey_tbl->max;
 476        for (i = 0; i < pkey_tbl->max; i++) {
 477                if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey)))
 478                        return -EALREADY;
 479                else if (!pkey_tbl->tbl[i] && free_idx == pkey_tbl->max)
 480                        free_idx = i;
 481        }
 482        if (free_idx == pkey_tbl->max) {
 483                dev_err(&res->pdev->dev,
 484                        "PKEY table is FULL but count is not MAX??\n");
 485                return -ENOMEM;
 486        }
 487        /* Add PKEY to the pkey_tbl */
 488        memcpy(&pkey_tbl->tbl[free_idx], pkey, sizeof(*pkey));
 489        pkey_tbl->active++;
 490
 491        /* unlock */
 492        return rc;
 493}
 494
 495/* AH */
 496int bnxt_qplib_create_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah,
 497                         bool block)
 498{
 499        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 500        struct cmdq_create_ah req;
 501        struct creq_create_ah_resp resp;
 502        u16 cmd_flags = 0;
 503        u32 temp32[4];
 504        u16 temp16[3];
 505        int rc;
 506
 507        RCFW_CMD_PREP(req, CREATE_AH, cmd_flags);
 508
 509        memcpy(temp32, ah->dgid.data, sizeof(struct bnxt_qplib_gid));
 510        req.dgid[0] = cpu_to_le32(temp32[0]);
 511        req.dgid[1] = cpu_to_le32(temp32[1]);
 512        req.dgid[2] = cpu_to_le32(temp32[2]);
 513        req.dgid[3] = cpu_to_le32(temp32[3]);
 514
 515        req.type = ah->nw_type;
 516        req.hop_limit = ah->hop_limit;
 517        req.sgid_index = cpu_to_le16(res->sgid_tbl.hw_id[ah->sgid_index]);
 518        req.dest_vlan_id_flow_label = cpu_to_le32((ah->flow_label &
 519                                        CMDQ_CREATE_AH_FLOW_LABEL_MASK) |
 520                                        CMDQ_CREATE_AH_DEST_VLAN_ID_MASK);
 521        req.pd_id = cpu_to_le32(ah->pd->id);
 522        req.traffic_class = ah->traffic_class;
 523
 524        /* MAC in network format */
 525        memcpy(temp16, ah->dmac, 6);
 526        req.dest_mac[0] = cpu_to_le16(temp16[0]);
 527        req.dest_mac[1] = cpu_to_le16(temp16[1]);
 528        req.dest_mac[2] = cpu_to_le16(temp16[2]);
 529
 530        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 531                                          NULL, block);
 532        if (rc)
 533                return rc;
 534
 535        ah->id = le32_to_cpu(resp.xid);
 536        return 0;
 537}
 538
 539void bnxt_qplib_destroy_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah,
 540                           bool block)
 541{
 542        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 543        struct cmdq_destroy_ah req;
 544        struct creq_destroy_ah_resp resp;
 545        u16 cmd_flags = 0;
 546
 547        /* Clean up the AH table in the device */
 548        RCFW_CMD_PREP(req, DESTROY_AH, cmd_flags);
 549
 550        req.ah_cid = cpu_to_le32(ah->id);
 551
 552        bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, NULL,
 553                                     block);
 554}
 555
 556/* MRW */
 557int bnxt_qplib_free_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw)
 558{
 559        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 560        struct cmdq_deallocate_key req;
 561        struct creq_deallocate_key_resp resp;
 562        u16 cmd_flags = 0;
 563        int rc;
 564
 565        if (mrw->lkey == 0xFFFFFFFF) {
 566                dev_info(&res->pdev->dev, "SP: Free a reserved lkey MRW\n");
 567                return 0;
 568        }
 569
 570        RCFW_CMD_PREP(req, DEALLOCATE_KEY, cmd_flags);
 571
 572        req.mrw_flags = mrw->type;
 573
 574        if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1)  ||
 575            (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) ||
 576            (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B))
 577                req.key = cpu_to_le32(mrw->rkey);
 578        else
 579                req.key = cpu_to_le32(mrw->lkey);
 580
 581        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 582                                          NULL, 0);
 583        if (rc)
 584                return rc;
 585
 586        /* Free the qplib's MRW memory */
 587        if (mrw->hwq.max_elements)
 588                bnxt_qplib_free_hwq(res->pdev, &mrw->hwq);
 589
 590        return 0;
 591}
 592
 593int bnxt_qplib_alloc_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw)
 594{
 595        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 596        struct cmdq_allocate_mrw req;
 597        struct creq_allocate_mrw_resp resp;
 598        u16 cmd_flags = 0;
 599        unsigned long tmp;
 600        int rc;
 601
 602        RCFW_CMD_PREP(req, ALLOCATE_MRW, cmd_flags);
 603
 604        req.pd_id = cpu_to_le32(mrw->pd->id);
 605        req.mrw_flags = mrw->type;
 606        if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_PMR &&
 607             mrw->flags & BNXT_QPLIB_FR_PMR) ||
 608            mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A ||
 609            mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B)
 610                req.access = CMDQ_ALLOCATE_MRW_ACCESS_CONSUMER_OWNED_KEY;
 611        tmp = (unsigned long)mrw;
 612        req.mrw_handle = cpu_to_le64(tmp);
 613
 614        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 615                                          (void *)&resp, NULL, 0);
 616        if (rc)
 617                return rc;
 618
 619        if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1)  ||
 620            (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) ||
 621            (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B))
 622                mrw->rkey = le32_to_cpu(resp.xid);
 623        else
 624                mrw->lkey = le32_to_cpu(resp.xid);
 625        return 0;
 626}
 627
 628int bnxt_qplib_dereg_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw,
 629                         bool block)
 630{
 631        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 632        struct cmdq_deregister_mr req;
 633        struct creq_deregister_mr_resp resp;
 634        u16 cmd_flags = 0;
 635        int rc;
 636
 637        RCFW_CMD_PREP(req, DEREGISTER_MR, cmd_flags);
 638
 639        req.lkey = cpu_to_le32(mrw->lkey);
 640        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 641                                          (void *)&resp, NULL, block);
 642        if (rc)
 643                return rc;
 644
 645        /* Free the qplib's MR memory */
 646        if (mrw->hwq.max_elements) {
 647                mrw->va = 0;
 648                mrw->total_size = 0;
 649                bnxt_qplib_free_hwq(res->pdev, &mrw->hwq);
 650        }
 651
 652        return 0;
 653}
 654
 655int bnxt_qplib_reg_mr(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mr,
 656                      u64 *pbl_tbl, int num_pbls, bool block, u32 buf_pg_size)
 657{
 658        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 659        struct cmdq_register_mr req;
 660        struct creq_register_mr_resp resp;
 661        u16 cmd_flags = 0, level;
 662        int pg_ptrs, pages, i, rc;
 663        dma_addr_t **pbl_ptr;
 664        u32 pg_size;
 665
 666        if (num_pbls) {
 667                /* Allocate memory for the non-leaf pages to store buf ptrs.
 668                 * Non-leaf pages always uses system PAGE_SIZE
 669                 */
 670                pg_ptrs = roundup_pow_of_two(num_pbls);
 671                pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT;
 672                if (!pages)
 673                        pages++;
 674
 675                if (pages > MAX_PBL_LVL_1_PGS) {
 676                        dev_err(&res->pdev->dev,
 677                                "SP: Reg MR pages requested (0x%x) exceeded max (0x%x)\n",
 678                                pages, MAX_PBL_LVL_1_PGS);
 679                        return -ENOMEM;
 680                }
 681                /* Free the hwq if it already exist, must be a rereg */
 682                if (mr->hwq.max_elements)
 683                        bnxt_qplib_free_hwq(res->pdev, &mr->hwq);
 684
 685                mr->hwq.max_elements = pages;
 686                /* Use system PAGE_SIZE */
 687                rc = bnxt_qplib_alloc_init_hwq(res->pdev, &mr->hwq, NULL,
 688                                               &mr->hwq.max_elements,
 689                                               PAGE_SIZE, 0, PAGE_SIZE,
 690                                               HWQ_TYPE_CTX);
 691                if (rc) {
 692                        dev_err(&res->pdev->dev,
 693                                "SP: Reg MR memory allocation failed\n");
 694                        return -ENOMEM;
 695                }
 696                /* Write to the hwq */
 697                pbl_ptr = (dma_addr_t **)mr->hwq.pbl_ptr;
 698                for (i = 0; i < num_pbls; i++)
 699                        pbl_ptr[PTR_PG(i)][PTR_IDX(i)] =
 700                                (pbl_tbl[i] & PAGE_MASK) | PTU_PTE_VALID;
 701        }
 702
 703        RCFW_CMD_PREP(req, REGISTER_MR, cmd_flags);
 704
 705        /* Configure the request */
 706        if (mr->hwq.level == PBL_LVL_MAX) {
 707                /* No PBL provided, just use system PAGE_SIZE */
 708                level = 0;
 709                req.pbl = 0;
 710                pg_size = PAGE_SIZE;
 711        } else {
 712                level = mr->hwq.level + 1;
 713                req.pbl = cpu_to_le64(mr->hwq.pbl[PBL_LVL_0].pg_map_arr[0]);
 714        }
 715        pg_size = buf_pg_size ? buf_pg_size : PAGE_SIZE;
 716        req.log2_pg_size_lvl = (level << CMDQ_REGISTER_MR_LVL_SFT) |
 717                               ((ilog2(pg_size) <<
 718                                 CMDQ_REGISTER_MR_LOG2_PG_SIZE_SFT) &
 719                                CMDQ_REGISTER_MR_LOG2_PG_SIZE_MASK);
 720        req.log2_pbl_pg_size = cpu_to_le16(((ilog2(PAGE_SIZE) <<
 721                                 CMDQ_REGISTER_MR_LOG2_PBL_PG_SIZE_SFT) &
 722                                CMDQ_REGISTER_MR_LOG2_PBL_PG_SIZE_MASK));
 723        req.access = (mr->flags & 0xFFFF);
 724        req.va = cpu_to_le64(mr->va);
 725        req.key = cpu_to_le32(mr->lkey);
 726        req.mr_size = cpu_to_le64(mr->total_size);
 727
 728        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 729                                          (void *)&resp, NULL, block);
 730        if (rc)
 731                goto fail;
 732
 733        return 0;
 734
 735fail:
 736        if (mr->hwq.max_elements)
 737                bnxt_qplib_free_hwq(res->pdev, &mr->hwq);
 738        return rc;
 739}
 740
 741int bnxt_qplib_alloc_fast_reg_page_list(struct bnxt_qplib_res *res,
 742                                        struct bnxt_qplib_frpl *frpl,
 743                                        int max_pg_ptrs)
 744{
 745        int pg_ptrs, pages, rc;
 746
 747        /* Re-calculate the max to fit the HWQ allocation model */
 748        pg_ptrs = roundup_pow_of_two(max_pg_ptrs);
 749        pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT;
 750        if (!pages)
 751                pages++;
 752
 753        if (pages > MAX_PBL_LVL_1_PGS)
 754                return -ENOMEM;
 755
 756        frpl->hwq.max_elements = pages;
 757        rc = bnxt_qplib_alloc_init_hwq(res->pdev, &frpl->hwq, NULL,
 758                                       &frpl->hwq.max_elements, PAGE_SIZE, 0,
 759                                       PAGE_SIZE, HWQ_TYPE_CTX);
 760        if (!rc)
 761                frpl->max_pg_ptrs = pg_ptrs;
 762
 763        return rc;
 764}
 765
 766int bnxt_qplib_free_fast_reg_page_list(struct bnxt_qplib_res *res,
 767                                       struct bnxt_qplib_frpl *frpl)
 768{
 769        bnxt_qplib_free_hwq(res->pdev, &frpl->hwq);
 770        return 0;
 771}
 772
 773int bnxt_qplib_map_tc2cos(struct bnxt_qplib_res *res, u16 *cids)
 774{
 775        struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 776        struct cmdq_map_tc_to_cos req;
 777        struct creq_map_tc_to_cos_resp resp;
 778        u16 cmd_flags = 0;
 779
 780        RCFW_CMD_PREP(req, MAP_TC_TO_COS, cmd_flags);
 781        req.cos0 = cpu_to_le16(cids[0]);
 782        req.cos1 = cpu_to_le16(cids[1]);
 783
 784        return bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 785                                                NULL, 0);
 786}
 787
 788int bnxt_qplib_get_roce_stats(struct bnxt_qplib_rcfw *rcfw,
 789                              struct bnxt_qplib_roce_stats *stats)
 790{
 791        struct cmdq_query_roce_stats req;
 792        struct creq_query_roce_stats_resp resp;
 793        struct bnxt_qplib_rcfw_sbuf *sbuf;
 794        struct creq_query_roce_stats_resp_sb *sb;
 795        u16 cmd_flags = 0;
 796        int rc = 0;
 797
 798        RCFW_CMD_PREP(req, QUERY_ROCE_STATS, cmd_flags);
 799
 800        sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb));
 801        if (!sbuf) {
 802                dev_err(&rcfw->pdev->dev,
 803                        "SP: QUERY_ROCE_STATS alloc side buffer failed\n");
 804                return -ENOMEM;
 805        }
 806
 807        sb = sbuf->sb;
 808        req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS;
 809        rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 810                                          (void *)sbuf, 0);
 811        if (rc)
 812                goto bail;
 813        /* Extract the context from the side buffer */
 814        stats->to_retransmits = le64_to_cpu(sb->to_retransmits);
 815        stats->seq_err_naks_rcvd = le64_to_cpu(sb->seq_err_naks_rcvd);
 816        stats->max_retry_exceeded = le64_to_cpu(sb->max_retry_exceeded);
 817        stats->rnr_naks_rcvd = le64_to_cpu(sb->rnr_naks_rcvd);
 818        stats->missing_resp = le64_to_cpu(sb->missing_resp);
 819        stats->unrecoverable_err = le64_to_cpu(sb->unrecoverable_err);
 820        stats->bad_resp_err = le64_to_cpu(sb->bad_resp_err);
 821        stats->local_qp_op_err = le64_to_cpu(sb->local_qp_op_err);
 822        stats->local_protection_err = le64_to_cpu(sb->local_protection_err);
 823        stats->mem_mgmt_op_err = le64_to_cpu(sb->mem_mgmt_op_err);
 824        stats->remote_invalid_req_err = le64_to_cpu(sb->remote_invalid_req_err);
 825        stats->remote_access_err = le64_to_cpu(sb->remote_access_err);
 826        stats->remote_op_err = le64_to_cpu(sb->remote_op_err);
 827        stats->dup_req = le64_to_cpu(sb->dup_req);
 828        stats->res_exceed_max = le64_to_cpu(sb->res_exceed_max);
 829        stats->res_length_mismatch = le64_to_cpu(sb->res_length_mismatch);
 830        stats->res_exceeds_wqe = le64_to_cpu(sb->res_exceeds_wqe);
 831        stats->res_opcode_err = le64_to_cpu(sb->res_opcode_err);
 832        stats->res_rx_invalid_rkey = le64_to_cpu(sb->res_rx_invalid_rkey);
 833        stats->res_rx_domain_err = le64_to_cpu(sb->res_rx_domain_err);
 834        stats->res_rx_no_perm = le64_to_cpu(sb->res_rx_no_perm);
 835        stats->res_rx_range_err = le64_to_cpu(sb->res_rx_range_err);
 836        stats->res_tx_invalid_rkey = le64_to_cpu(sb->res_tx_invalid_rkey);
 837        stats->res_tx_domain_err = le64_to_cpu(sb->res_tx_domain_err);
 838        stats->res_tx_no_perm = le64_to_cpu(sb->res_tx_no_perm);
 839        stats->res_tx_range_err = le64_to_cpu(sb->res_tx_range_err);
 840        stats->res_irrq_oflow = le64_to_cpu(sb->res_irrq_oflow);
 841        stats->res_unsup_opcode = le64_to_cpu(sb->res_unsup_opcode);
 842        stats->res_unaligned_atomic = le64_to_cpu(sb->res_unaligned_atomic);
 843        stats->res_rem_inv_err = le64_to_cpu(sb->res_rem_inv_err);
 844        stats->res_mem_error = le64_to_cpu(sb->res_mem_error);
 845        stats->res_srq_err = le64_to_cpu(sb->res_srq_err);
 846        stats->res_cmp_err = le64_to_cpu(sb->res_cmp_err);
 847        stats->res_invalid_dup_rkey = le64_to_cpu(sb->res_invalid_dup_rkey);
 848        stats->res_wqe_format_err = le64_to_cpu(sb->res_wqe_format_err);
 849        stats->res_cq_load_err = le64_to_cpu(sb->res_cq_load_err);
 850        stats->res_srq_load_err = le64_to_cpu(sb->res_srq_load_err);
 851        stats->res_tx_pci_err = le64_to_cpu(sb->res_tx_pci_err);
 852        stats->res_rx_pci_err = le64_to_cpu(sb->res_rx_pci_err);
 853        if (!rcfw->init_oos_stats) {
 854                rcfw->oos_prev = le64_to_cpu(sb->res_oos_drop_count);
 855                rcfw->init_oos_stats = 1;
 856        } else {
 857                stats->res_oos_drop_count +=
 858                                (le64_to_cpu(sb->res_oos_drop_count) -
 859                                 rcfw->oos_prev) & BNXT_QPLIB_OOS_COUNT_MASK;
 860                rcfw->oos_prev = le64_to_cpu(sb->res_oos_drop_count);
 861        }
 862
 863bail:
 864        bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
 865        return rc;
 866}
 867