drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 // Copyright (c) 2016-2017 Hisilicon Limited.
   3
   4 #include "hclge_main.h"
   5 #include "hclge_dcb.h"
   6 #include "hclge_tm.h"
   7 #include "hnae3.h"
   8
   9 #define BW_PERCENT      100
  10
  11 static int hclge_ieee_ets_to_tm_info(struct hclge_dev *hdev,
  12                                      struct ieee_ets *ets)
  13 {
  14         u8 i;
  15
  16         for (i = 0; i < HNAE3_MAX_TC; i++) {
  17                 switch (ets->tc_tsa[i]) {
  18                 case IEEE_8021QAZ_TSA_STRICT:
  19                         hdev->tm_info.tc_info[i].tc_sch_mode =
  20                                 HCLGE_SCH_MODE_SP;
  21                         hdev->tm_info.pg_info[0].tc_dwrr[i] = 0;
  22                         break;
  23                 case IEEE_8021QAZ_TSA_ETS:
  24                         hdev->tm_info.tc_info[i].tc_sch_mode =
  25                                 HCLGE_SCH_MODE_DWRR;
  26                         hdev->tm_info.pg_info[0].tc_dwrr[i] =
  27                                 ets->tc_tx_bw[i];
  28                         break;
  29                 default:
  30                         /* Hardware only supports SP (strict priority)
  31                          * or ETS (enhanced transmission selection)
  32                          * algorithms, if we receive some other value
  33                          * from dcbnl, then throw an error.
  34                          */
  35                         return -EINVAL;
  36                 }
  37         }
  38
  39         hclge_tm_prio_tc_info_update(hdev, ets->prio_tc);
  40
  41         return 0;
  42 }
  43
  44 static void hclge_tm_info_to_ieee_ets(struct hclge_dev *hdev,
  45                                       struct ieee_ets *ets)
  46 {
  47         u32 i;
  48
  49         memset(ets, 0, sizeof(*ets));
  50         ets->willing = 1;
  51         ets->ets_cap = hdev->tc_max;
  52
  53         for (i = 0; i < HNAE3_MAX_TC; i++) {
  54                 ets->prio_tc[i] = hdev->tm_info.prio_tc[i];
  55                 if (i < hdev->tm_info.num_tc)
  56                         ets->tc_tx_bw[i] = hdev->tm_info.pg_info[0].tc_dwrr[i];
  57                 else
  58                         ets->tc_tx_bw[i] = 0;
  59
  60                 if (hdev->tm_info.tc_info[i].tc_sch_mode ==
  61                     HCLGE_SCH_MODE_SP)
  62                         ets->tc_tsa[i] = IEEE_8021QAZ_TSA_STRICT;
  63                 else
  64                         ets->tc_tsa[i] = IEEE_8021QAZ_TSA_ETS;
  65         }
  66 }
  67
  68 /* IEEE std */
  69 static int hclge_ieee_getets(struct hnae3_handle *h, struct ieee_ets *ets)
  70 {
  71         struct hclge_vport *vport = hclge_get_vport(h);
  72         struct hclge_dev *hdev = vport->back;
  73
  74         hclge_tm_info_to_ieee_ets(hdev, ets);
  75
  76         return 0;
  77 }
  78
  79 static int hclge_dcb_common_validate(struct hclge_dev *hdev, u8 num_tc,
  80                                      u8 *prio_tc)
  81 {
  82         int i;
  83
  84         if (num_tc > hdev->tc_max) {
  85                 dev_err(&hdev->pdev->dev,
  86                         "tc num checking failed, %u > tc_max(%u)\n",
  87                         num_tc, hdev->tc_max);
  88                 return -EINVAL;
  89         }
  90
  91         for (i = 0; i < HNAE3_MAX_USER_PRIO; i++) {
  92                 if (prio_tc[i] >= num_tc) {
  93                         dev_err(&hdev->pdev->dev,
  94                                 "prio_tc[%d] checking failed, %u >= num_tc(%u)\n",
  95                                 i, prio_tc[i], num_tc);
  96                         return -EINVAL;
  97                 }
  98         }
  99
 100         if (num_tc > hdev->vport[0].alloc_tqps) {
 101                 dev_err(&hdev->pdev->dev,
 102                         "allocated tqp checking failed, %u > tqp(%u)\n",
 103                         num_tc, hdev->vport[0].alloc_tqps);
 104                 return -EINVAL;
 105         }
 106
 107         return 0;
 108 }
 109
 110 static u8 hclge_ets_tc_changed(struct hclge_dev *hdev, struct ieee_ets *ets,
 111                                bool *changed)
 112 {
 113         u8 max_tc_id = 0;
 114         u8 i;
 115
 116         for (i = 0; i < HNAE3_MAX_USER_PRIO; i++) {
 117                 if (ets->prio_tc[i] != hdev->tm_info.prio_tc[i])
 118                         *changed = true;
 119
 120                 if (ets->prio_tc[i] > max_tc_id)
 121                         max_tc_id = ets->prio_tc[i];
 122         }
 123
 124         /* return max tc number, max tc id need to plus 1 */
 125         return max_tc_id + 1;
 126 }
 127
 128 static int hclge_ets_sch_mode_validate(struct hclge_dev *hdev,
 129                                        struct ieee_ets *ets, bool *changed,
 130                                        u8 tc_num)
 131 {
 132         bool has_ets_tc = false;
 133         u32 total_ets_bw = 0;
 134         u8 i;
 135
 136         for (i = 0; i < HNAE3_MAX_TC; i++) {
 137                 switch (ets->tc_tsa[i]) {
 138                 case IEEE_8021QAZ_TSA_STRICT:
 139                         if (hdev->tm_info.tc_info[i].tc_sch_mode !=
 140                                 HCLGE_SCH_MODE_SP)
 141                                 *changed = true;
 142                         break;
 143                 case IEEE_8021QAZ_TSA_ETS:
 144                         if (i >= tc_num) {
 145                                 dev_err(&hdev->pdev->dev,
 146                                         "tc%u is disabled, cannot set ets bw\n",
 147                                         i);
 148                                 return -EINVAL;
 149                         }
 150
 151                         /* The hardware will switch to sp mode if bandwidth is
 152                          * 0, so limit ets bandwidth must be greater than 0.
 153                          */
 154                         if (!ets->tc_tx_bw[i]) {
 155                                 dev_err(&hdev->pdev->dev,
 156                                         "tc%u ets bw cannot be 0\n", i);
 157                                 return -EINVAL;
 158                         }
 159
 160                         if (hdev->tm_info.tc_info[i].tc_sch_mode !=
 161                                 HCLGE_SCH_MODE_DWRR)
 162                                 *changed = true;
 163
 164                         total_ets_bw += ets->tc_tx_bw[i];
 165                         has_ets_tc = true;
 166                         break;
 167                 default:
 168                         return -EINVAL;
 169                 }
 170         }
 171
 172         if (has_ets_tc && total_ets_bw != BW_PERCENT)
 173                 return -EINVAL;
 174
 175         return 0;
 176 }
 177
 178 static int hclge_ets_validate(struct hclge_dev *hdev, struct ieee_ets *ets,
 179                               u8 *tc, bool *changed)
 180 {
 181         u8 tc_num;
 182         int ret;
 183
 184         tc_num = hclge_ets_tc_changed(hdev, ets, changed);
 185
 186         ret = hclge_dcb_common_validate(hdev, tc_num, ets->prio_tc);
 187         if (ret)
 188                 return ret;
 189
 190         ret = hclge_ets_sch_mode_validate(hdev, ets, changed, tc_num);
 191         if (ret)
 192                 return ret;
 193
 194         *tc = tc_num;
 195         if (*tc != hdev->tm_info.num_tc)
 196                 *changed = true;
 197
 198         return 0;
 199 }
 200
 201 static int hclge_map_update(struct hclge_dev *hdev)
 202 {
 203         int ret;
 204
 205         ret = hclge_tm_schd_setup_hw(hdev);
 206         if (ret)
 207                 return ret;
 208
 209         ret = hclge_pause_setup_hw(hdev, false);
 210         if (ret)
 211                 return ret;
 212
 213         ret = hclge_buffer_alloc(hdev);
 214         if (ret)
 215                 return ret;
 216
 217         hclge_comm_rss_indir_init_cfg(hdev->ae_dev, &hdev->rss_cfg);
 218
 219         return hclge_rss_init_hw(hdev);
 220 }
 221
 222 static int hclge_notify_down_uinit(struct hclge_dev *hdev)
 223 {
 224         int ret;
 225
 226         ret = hclge_notify_client(hdev, HNAE3_DOWN_CLIENT);
 227         if (ret)
 228                 return ret;
 229
 230         ret = hclge_tm_flush_cfg(hdev, true);
 231         if (ret)
 232                 return ret;
 233
 234         return hclge_notify_client(hdev, HNAE3_UNINIT_CLIENT);
 235 }
 236
 237 static int hclge_notify_init_up(struct hclge_dev *hdev)
 238 {
 239         int ret;
 240
 241         ret = hclge_notify_client(hdev, HNAE3_INIT_CLIENT);
 242         if (ret)
 243                 return ret;
 244
 245         ret = hclge_tm_flush_cfg(hdev, false);
 246         if (ret)
 247                 return ret;
 248
 249         return hclge_notify_client(hdev, HNAE3_UP_CLIENT);
 250 }
 251
 252 static int hclge_ieee_setets(struct hnae3_handle *h, struct ieee_ets *ets)
 253 {
 254         struct hclge_vport *vport = hclge_get_vport(h);
 255         struct net_device *netdev = h->kinfo.netdev;
 256         struct hclge_dev *hdev = vport->back;
 257         bool map_changed = false;
 258         u8 num_tc = 0;
 259         int ret;
 260
 261         if (!(hdev->dcbx_cap & DCB_CAP_DCBX_VER_IEEE) ||
 262             h->kinfo.tc_info.mqprio_active)
 263                 return -EINVAL;
 264
 265         ret = hclge_ets_validate(hdev, ets, &num_tc, &map_changed);
 266         if (ret)
 267                 return ret;
 268
 269         if (map_changed) {
 270                 netif_dbg(h, drv, netdev, "set ets\n");
 271
 272                 ret = hclge_notify_down_uinit(hdev);
 273                 if (ret)
 274                         return ret;
 275         }
 276
 277         hclge_tm_schd_info_update(hdev, num_tc);
 278         h->kinfo.tc_info.dcb_ets_active = num_tc > 1;
 279
 280         ret = hclge_ieee_ets_to_tm_info(hdev, ets);
 281         if (ret)
 282                 goto err_out;
 283
 284         if (map_changed) {
 285                 ret = hclge_map_update(hdev);
 286                 if (ret)
 287                         goto err_out;
 288
 289                 return hclge_notify_init_up(hdev);
 290         }
 291
 292         return hclge_tm_dwrr_cfg(hdev);
 293
 294 err_out:
 295         if (!map_changed)
 296                 return ret;
 297
 298         hclge_notify_init_up(hdev);
 299
 300         return ret;
 301 }
 302
 303 static int hclge_ieee_getpfc(struct hnae3_handle *h, struct ieee_pfc *pfc)
 304 {
 305         struct hclge_vport *vport = hclge_get_vport(h);
 306         struct hclge_dev *hdev = vport->back;
 307         int ret;
 308
 309         memset(pfc, 0, sizeof(*pfc));
 310         pfc->pfc_cap = hdev->pfc_max;
 311         pfc->pfc_en = hdev->tm_info.pfc_en;
 312
 313         ret = hclge_mac_update_stats(hdev);
 314         if (ret) {
 315                 dev_err(&hdev->pdev->dev,
 316                         "failed to update MAC stats, ret = %d.\n", ret);
 317                 return ret;
 318         }
 319
 320         hclge_pfc_tx_stats_get(hdev, pfc->requests);
 321         hclge_pfc_rx_stats_get(hdev, pfc->indications);
 322
 323         return 0;
 324 }
 325
 326 static int hclge_ieee_setpfc(struct hnae3_handle *h, struct ieee_pfc *pfc)
 327 {
 328         struct hclge_vport *vport = hclge_get_vport(h);
 329         struct net_device *netdev = h->kinfo.netdev;
 330         struct hclge_dev *hdev = vport->back;
 331         u8 i, j, pfc_map, *prio_tc;
 332         int last_bad_ret = 0;
 333         int ret;
 334
 335         if (!(hdev->dcbx_cap & DCB_CAP_DCBX_VER_IEEE))
 336                 return -EINVAL;
 337
 338         if (pfc->pfc_en == hdev->tm_info.pfc_en)
 339                 return 0;
 340
 341         prio_tc = hdev->tm_info.prio_tc;
 342         pfc_map = 0;
 343
 344         for (i = 0; i < hdev->tm_info.num_tc; i++) {
 345                 for (j = 0; j < HNAE3_MAX_USER_PRIO; j++) {
 346                         if ((prio_tc[j] == i) && (pfc->pfc_en & BIT(j))) {
 347                                 pfc_map |= BIT(i);
 348                                 break;
 349                         }
 350                 }
 351         }
 352
 353         hdev->tm_info.hw_pfc_map = pfc_map;
 354         hdev->tm_info.pfc_en = pfc->pfc_en;
 355
 356         netif_dbg(h, drv, netdev,
 357                   "set pfc: pfc_en=%x, pfc_map=%x, num_tc=%u\n",
 358                   pfc->pfc_en, pfc_map, hdev->tm_info.num_tc);
 359
 360         hclge_tm_pfc_info_update(hdev);
 361
 362         ret = hclge_pause_setup_hw(hdev, false);
 363         if (ret)
 364                 return ret;
 365
 366         ret = hclge_notify_client(hdev, HNAE3_DOWN_CLIENT);
 367         if (ret)
 368                 return ret;
 369
 370         ret = hclge_tm_flush_cfg(hdev, true);
 371         if (ret)
 372                 return ret;
 373
 374         /* No matter whether the following operations are performed
 375          * successfully or not, disabling the tm flush and notify
 376          * the network status to up are necessary.
 377          * Do not return immediately.
 378          */
 379         ret = hclge_buffer_alloc(hdev);
 380         if (ret)
 381                 last_bad_ret = ret;
 382
 383         ret = hclge_tm_flush_cfg(hdev, false);
 384         if (ret)
 385                 last_bad_ret = ret;
 386
 387         ret = hclge_notify_client(hdev, HNAE3_UP_CLIENT);
 388         if (ret)
 389                 last_bad_ret = ret;
 390
 391         return last_bad_ret;
 392 }
 393
 394 static int hclge_ieee_setapp(struct hnae3_handle *h, struct dcb_app *app)
 395 {
 396         struct hclge_vport *vport = hclge_get_vport(h);
 397         struct net_device *netdev = h->kinfo.netdev;
 398         struct hclge_dev *hdev = vport->back;
 399         struct dcb_app old_app;
 400         int ret;
 401
 402         if (app->selector != IEEE_8021QAZ_APP_SEL_DSCP ||
 403             app->protocol >= HNAE3_MAX_DSCP ||
 404             app->priority >= HNAE3_MAX_USER_PRIO)
 405                 return -EINVAL;
 406
 407         dev_info(&hdev->pdev->dev, "setapp dscp=%u priority=%u\n",
 408                  app->protocol, app->priority);
 409
 410         if (app->priority == h->kinfo.dscp_prio[app->protocol])
 411                 return 0;
 412
 413         ret = dcb_ieee_setapp(netdev, app);
 414         if (ret)
 415                 return ret;
 416
 417         old_app.selector = IEEE_8021QAZ_APP_SEL_DSCP;
 418         old_app.protocol = app->protocol;
 419         old_app.priority = h->kinfo.dscp_prio[app->protocol];
 420
 421         h->kinfo.dscp_prio[app->protocol] = app->priority;
 422         ret = hclge_dscp_to_tc_map(hdev);
 423         if (ret) {
 424                 dev_err(&hdev->pdev->dev,
 425                         "failed to set dscp to tc map, ret = %d\n", ret);
 426                 h->kinfo.dscp_prio[app->protocol] = old_app.priority;
 427                 (void)dcb_ieee_delapp(netdev, app);
 428                 return ret;
 429         }
 430
 431         vport->nic.kinfo.tc_map_mode = HNAE3_TC_MAP_MODE_DSCP;
 432         if (old_app.priority == HNAE3_PRIO_ID_INVALID)
 433                 h->kinfo.dscp_app_cnt++;
 434         else
 435                 ret = dcb_ieee_delapp(netdev, &old_app);
 436
 437         return ret;
 438 }
 439
 440 static int hclge_ieee_delapp(struct hnae3_handle *h, struct dcb_app *app)
 441 {
 442         struct hclge_vport *vport = hclge_get_vport(h);
 443         struct net_device *netdev = h->kinfo.netdev;
 444         struct hclge_dev *hdev = vport->back;
 445         int ret;
 446
 447         if (app->selector != IEEE_8021QAZ_APP_SEL_DSCP ||
 448             app->protocol >= HNAE3_MAX_DSCP ||
 449             app->priority >= HNAE3_MAX_USER_PRIO ||
 450             app->priority != h->kinfo.dscp_prio[app->protocol])
 451                 return -EINVAL;
 452
 453         dev_info(&hdev->pdev->dev, "delapp dscp=%u priority=%u\n",
 454                  app->protocol, app->priority);
 455
 456         ret = dcb_ieee_delapp(netdev, app);
 457         if (ret)
 458                 return ret;
 459
 460         h->kinfo.dscp_prio[app->protocol] = HNAE3_PRIO_ID_INVALID;
 461         ret = hclge_dscp_to_tc_map(hdev);
 462         if (ret) {
 463                 dev_err(&hdev->pdev->dev,
 464                         "failed to del dscp to tc map, ret = %d\n", ret);
 465                 h->kinfo.dscp_prio[app->protocol] = app->priority;
 466                 (void)dcb_ieee_setapp(netdev, app);
 467                 return ret;
 468         }
 469
 470         if (h->kinfo.dscp_app_cnt)
 471                 h->kinfo.dscp_app_cnt--;
 472
 473         if (!h->kinfo.dscp_app_cnt) {
 474                 vport->nic.kinfo.tc_map_mode = HNAE3_TC_MAP_MODE_PRIO;
 475                 ret = hclge_up_to_tc_map(hdev);
 476         }
 477
 478         return ret;
 479 }
 480
 481 /* DCBX configuration */
 482 static u8 hclge_getdcbx(struct hnae3_handle *h)
 483 {
 484         struct hclge_vport *vport = hclge_get_vport(h);
 485         struct hclge_dev *hdev = vport->back;
 486
 487         if (h->kinfo.tc_info.mqprio_active)
 488                 return 0;
 489
 490         return hdev->dcbx_cap;
 491 }
 492
 493 static u8 hclge_setdcbx(struct hnae3_handle *h, u8 mode)
 494 {
 495         struct hclge_vport *vport = hclge_get_vport(h);
 496         struct net_device *netdev = h->kinfo.netdev;
 497         struct hclge_dev *hdev = vport->back;
 498
 499         netif_dbg(h, drv, netdev, "set dcbx: mode=%u\n", mode);
 500
 501         /* No support for LLD_MANAGED modes or CEE */
 502         if ((mode & DCB_CAP_DCBX_LLD_MANAGED) ||
 503             (mode & DCB_CAP_DCBX_VER_CEE) ||
 504             !(mode & DCB_CAP_DCBX_HOST))
 505                 return 1;
 506
 507         hdev->dcbx_cap = mode;
 508
 509         return 0;
 510 }
 511
 512 static int hclge_mqprio_qopt_check(struct hclge_dev *hdev,
 513                                    struct tc_mqprio_qopt_offload *mqprio_qopt)
 514 {
 515         u16 queue_sum = 0;
 516         int ret;
 517         int i;
 518
 519         if (!mqprio_qopt->qopt.num_tc) {
 520                 mqprio_qopt->qopt.num_tc = 1;
 521                 return 0;
 522         }
 523
 524         ret = hclge_dcb_common_validate(hdev, mqprio_qopt->qopt.num_tc,
 525                                         mqprio_qopt->qopt.prio_tc_map);
 526         if (ret)
 527                 return ret;
 528
 529         for (i = 0; i < mqprio_qopt->qopt.num_tc; i++) {
 530                 if (!is_power_of_2(mqprio_qopt->qopt.count[i])) {
 531                         dev_err(&hdev->pdev->dev,
 532                                 "qopt queue count must be power of 2\n");
 533                         return -EINVAL;
 534                 }
 535
 536                 if (mqprio_qopt->qopt.count[i] > hdev->pf_rss_size_max) {
 537                         dev_err(&hdev->pdev->dev,
 538                                 "qopt queue count should be no more than %u\n",
 539                                 hdev->pf_rss_size_max);
 540                         return -EINVAL;
 541                 }
 542
 543                 if (mqprio_qopt->qopt.offset[i] != queue_sum) {
 544                         dev_err(&hdev->pdev->dev,
 545                                 "qopt queue offset must start from 0, and being continuous\n");
 546                         return -EINVAL;
 547                 }
 548
 549                 if (mqprio_qopt->min_rate[i] || mqprio_qopt->max_rate[i]) {
 550                         dev_err(&hdev->pdev->dev,
 551                                 "qopt tx_rate is not supported\n");
 552                         return -EOPNOTSUPP;
 553                 }
 554
 555                 queue_sum = mqprio_qopt->qopt.offset[i];
 556                 queue_sum += mqprio_qopt->qopt.count[i];
 557         }
 558         if (hdev->vport[0].alloc_tqps < queue_sum) {
 559                 dev_err(&hdev->pdev->dev,
 560                         "qopt queue count sum should be less than %u\n",
 561                         hdev->vport[0].alloc_tqps);
 562                 return -EINVAL;
 563         }
 564
 565         return 0;
 566 }
 567
 568 static void hclge_sync_mqprio_qopt(struct hnae3_tc_info *tc_info,
 569                                    struct tc_mqprio_qopt_offload *mqprio_qopt)
 570 {
 571         memset(tc_info, 0, sizeof(*tc_info));
 572         tc_info->num_tc = mqprio_qopt->qopt.num_tc;
 573         memcpy(tc_info->prio_tc, mqprio_qopt->qopt.prio_tc_map,
 574                sizeof_field(struct hnae3_tc_info, prio_tc));
 575         memcpy(tc_info->tqp_count, mqprio_qopt->qopt.count,
 576                sizeof_field(struct hnae3_tc_info, tqp_count));
 577         memcpy(tc_info->tqp_offset, mqprio_qopt->qopt.offset,
 578                sizeof_field(struct hnae3_tc_info, tqp_offset));
 579 }
 580
 581 static int hclge_config_tc(struct hclge_dev *hdev,
 582                            struct hnae3_tc_info *tc_info)
 583 {
 584         int i;
 585
 586         hclge_tm_schd_info_update(hdev, tc_info->num_tc);
 587         for (i = 0; i < HNAE3_MAX_USER_PRIO; i++)
 588                 hdev->tm_info.prio_tc[i] = tc_info->prio_tc[i];
 589
 590         return hclge_map_update(hdev);
 591 }
 592
 593 /* Set up TC for hardware offloaded mqprio in channel mode */
 594 static int hclge_setup_tc(struct hnae3_handle *h,
 595                           struct tc_mqprio_qopt_offload *mqprio_qopt)
 596 {
 597         struct hclge_vport *vport = hclge_get_vport(h);
 598         struct hnae3_knic_private_info *kinfo;
 599         struct hclge_dev *hdev = vport->back;
 600         struct hnae3_tc_info old_tc_info;
 601         u8 tc = mqprio_qopt->qopt.num_tc;
 602         int ret;
 603
 604         /* if client unregistered, it's not allowed to change
 605          * mqprio configuration, which may cause uninit ring
 606          * fail.
 607          */
 608         if (!test_bit(HCLGE_STATE_NIC_REGISTERED, &hdev->state))
 609                 return -EBUSY;
 610
 611         kinfo = &vport->nic.kinfo;
 612         if (kinfo->tc_info.dcb_ets_active)
 613                 return -EINVAL;
 614
 615         ret = hclge_mqprio_qopt_check(hdev, mqprio_qopt);
 616         if (ret) {
 617                 dev_err(&hdev->pdev->dev,
 618                         "failed to check mqprio qopt params, ret = %d\n", ret);
 619                 return ret;
 620         }
 621
 622         kinfo->tc_info.mqprio_destroy = !tc;
 623
 624         ret = hclge_notify_down_uinit(hdev);
 625         if (ret)
 626                 return ret;
 627
 628         memcpy(&old_tc_info, &kinfo->tc_info, sizeof(old_tc_info));
 629         hclge_sync_mqprio_qopt(&kinfo->tc_info, mqprio_qopt);
 630         kinfo->tc_info.mqprio_active = tc > 0;
 631
 632         ret = hclge_config_tc(hdev, &kinfo->tc_info);
 633         if (ret)
 634                 goto err_out;
 635
 636         return hclge_notify_init_up(hdev);
 637
 638 err_out:
 639         if (!tc) {
 640                 dev_warn(&hdev->pdev->dev,
 641                          "failed to destroy mqprio, will active after reset, ret = %d\n",
 642                          ret);
 643         } else {
 644                 /* roll-back */
 645                 memcpy(&kinfo->tc_info, &old_tc_info, sizeof(old_tc_info));
 646                 if (hclge_config_tc(hdev, &kinfo->tc_info))
 647                         dev_err(&hdev->pdev->dev,
 648                                 "failed to roll back tc configuration\n");
 649         }
 650         hclge_notify_init_up(hdev);
 651
 652         return ret;
 653 }
 654
 655 static const struct hnae3_dcb_ops hns3_dcb_ops = {
 656         .ieee_getets    = hclge_ieee_getets,
 657         .ieee_setets    = hclge_ieee_setets,
 658         .ieee_getpfc    = hclge_ieee_getpfc,
 659         .ieee_setpfc    = hclge_ieee_setpfc,
 660         .ieee_setapp    = hclge_ieee_setapp,
 661         .ieee_delapp    = hclge_ieee_delapp,
 662         .getdcbx        = hclge_getdcbx,
 663         .setdcbx        = hclge_setdcbx,
 664         .setup_tc       = hclge_setup_tc,
 665 };
 666
 667 void hclge_dcb_ops_set(struct hclge_dev *hdev)
 668 {
 669         struct hclge_vport *vport = hdev->vport;
 670         struct hnae3_knic_private_info *kinfo;
 671
 672         /* Hdev does not support DCB or vport is
 673          * not a pf, then dcb_ops is not set.
 674          */
 675         if (!hnae3_dev_dcb_supported(hdev) ||
 676             vport->vport_id != 0)
 677                 return;
 678
 679         kinfo = &vport->nic.kinfo;
 680         kinfo->dcb_ops = &hns3_dcb_ops;
 681         hdev->dcbx_cap = DCB_CAP_DCBX_VER_IEEE | DCB_CAP_DCBX_HOST;
 682 }