drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c

   1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
   2 /*
   3  * Copyright (c) 2018 Synopsys, Inc. and/or its affiliates.
   4  * stmmac TC Handling (HW only)
   5  */
   6
   7 #include <net/pkt_cls.h>
   8 #include <net/tc_act/tc_gact.h>
   9 #include "common.h"
  10 #include "dwmac4.h"
  11 #include "dwmac5.h"
  12 #include "stmmac.h"
  13
  14 static void tc_fill_all_pass_entry(struct stmmac_tc_entry *entry)
  15 {
  16         memset(entry, 0, sizeof(*entry));
  17         entry->in_use = true;
  18         entry->is_last = true;
  19         entry->is_frag = false;
  20         entry->prio = ~0x0;
  21         entry->handle = 0;
  22         entry->val.match_data = 0x0;
  23         entry->val.match_en = 0x0;
  24         entry->val.af = 1;
  25         entry->val.dma_ch_no = 0x0;
  26 }
  27
  28 static struct stmmac_tc_entry *tc_find_entry(struct stmmac_priv *priv,
  29                                              struct tc_cls_u32_offload *cls,
  30                                              bool free)
  31 {
  32         struct stmmac_tc_entry *entry, *first = NULL, *dup = NULL;
  33         u32 loc = cls->knode.handle;
  34         int i;
  35
  36         for (i = 0; i < priv->tc_entries_max; i++) {
  37                 entry = &priv->tc_entries[i];
  38                 if (!entry->in_use && !first && free)
  39                         first = entry;
  40                 if ((entry->handle == loc) && !free && !entry->is_frag)
  41                         dup = entry;
  42         }
  43
  44         if (dup)
  45                 return dup;
  46         if (first) {
  47                 first->handle = loc;
  48                 first->in_use = true;
  49
  50                 /* Reset HW values */
  51                 memset(&first->val, 0, sizeof(first->val));
  52         }
  53
  54         return first;
  55 }
  56
  57 static int tc_fill_actions(struct stmmac_tc_entry *entry,
  58                            struct stmmac_tc_entry *frag,
  59                            struct tc_cls_u32_offload *cls)
  60 {
  61         struct stmmac_tc_entry *action_entry = entry;
  62         const struct tc_action *act;
  63         struct tcf_exts *exts;
  64         int i;
  65
  66         exts = cls->knode.exts;
  67         if (!tcf_exts_has_actions(exts))
  68                 return -EINVAL;
  69         if (frag)
  70                 action_entry = frag;
  71
  72         tcf_exts_for_each_action(i, act, exts) {
  73                 /* Accept */
  74                 if (is_tcf_gact_ok(act)) {
  75                         action_entry->val.af = 1;
  76                         break;
  77                 }
  78                 /* Drop */
  79                 if (is_tcf_gact_shot(act)) {
  80                         action_entry->val.rf = 1;
  81                         break;
  82                 }
  83
  84                 /* Unsupported */
  85                 return -EINVAL;
  86         }
  87
  88         return 0;
  89 }
  90
  91 static int tc_fill_entry(struct stmmac_priv *priv,
  92                          struct tc_cls_u32_offload *cls)
  93 {
  94         struct stmmac_tc_entry *entry, *frag = NULL;
  95         struct tc_u32_sel *sel = cls->knode.sel;
  96         u32 off, data, mask, real_off, rem;
  97         u32 prio = cls->common.prio << 16;
  98         int ret;
  99
 100         /* Only 1 match per entry */
 101         if (sel->nkeys <= 0 || sel->nkeys > 1)
 102                 return -EINVAL;
 103
 104         off = sel->keys[0].off << sel->offshift;
 105         data = sel->keys[0].val;
 106         mask = sel->keys[0].mask;
 107
 108         switch (ntohs(cls->common.protocol)) {
 109         case ETH_P_ALL:
 110                 break;
 111         case ETH_P_IP:
 112                 off += ETH_HLEN;
 113                 break;
 114         default:
 115                 return -EINVAL;
 116         }
 117
 118         if (off > priv->tc_off_max)
 119                 return -EINVAL;
 120
 121         real_off = off / 4;
 122         rem = off % 4;
 123
 124         entry = tc_find_entry(priv, cls, true);
 125         if (!entry)
 126                 return -EINVAL;
 127
 128         if (rem) {
 129                 frag = tc_find_entry(priv, cls, true);
 130                 if (!frag) {
 131                         ret = -EINVAL;
 132                         goto err_unuse;
 133                 }
 134
 135                 entry->frag_ptr = frag;
 136                 entry->val.match_en = (mask << (rem * 8)) &
 137                         GENMASK(31, rem * 8);
 138                 entry->val.match_data = (data << (rem * 8)) &
 139                         GENMASK(31, rem * 8);
 140                 entry->val.frame_offset = real_off;
 141                 entry->prio = prio;
 142
 143                 frag->val.match_en = (mask >> (rem * 8)) &
 144                         GENMASK(rem * 8 - 1, 0);
 145                 frag->val.match_data = (data >> (rem * 8)) &
 146                         GENMASK(rem * 8 - 1, 0);
 147                 frag->val.frame_offset = real_off + 1;
 148                 frag->prio = prio;
 149                 frag->is_frag = true;
 150         } else {
 151                 entry->frag_ptr = NULL;
 152                 entry->val.match_en = mask;
 153                 entry->val.match_data = data;
 154                 entry->val.frame_offset = real_off;
 155                 entry->prio = prio;
 156         }
 157
 158         ret = tc_fill_actions(entry, frag, cls);
 159         if (ret)
 160                 goto err_unuse;
 161
 162         return 0;
 163
 164 err_unuse:
 165         if (frag)
 166                 frag->in_use = false;
 167         entry->in_use = false;
 168         return ret;
 169 }
 170
 171 static void tc_unfill_entry(struct stmmac_priv *priv,
 172                             struct tc_cls_u32_offload *cls)
 173 {
 174         struct stmmac_tc_entry *entry;
 175
 176         entry = tc_find_entry(priv, cls, false);
 177         if (!entry)
 178                 return;
 179
 180         entry->in_use = false;
 181         if (entry->frag_ptr) {
 182                 entry = entry->frag_ptr;
 183                 entry->is_frag = false;
 184                 entry->in_use = false;
 185         }
 186 }
 187
 188 static int tc_config_knode(struct stmmac_priv *priv,
 189                            struct tc_cls_u32_offload *cls)
 190 {
 191         int ret;
 192
 193         ret = tc_fill_entry(priv, cls);
 194         if (ret)
 195                 return ret;
 196
 197         ret = stmmac_rxp_config(priv, priv->hw->pcsr, priv->tc_entries,
 198                         priv->tc_entries_max);
 199         if (ret)
 200                 goto err_unfill;
 201
 202         return 0;
 203
 204 err_unfill:
 205         tc_unfill_entry(priv, cls);
 206         return ret;
 207 }
 208
 209 static int tc_delete_knode(struct stmmac_priv *priv,
 210                            struct tc_cls_u32_offload *cls)
 211 {
 212         /* Set entry and fragments as not used */
 213         tc_unfill_entry(priv, cls);
 214
 215         return stmmac_rxp_config(priv, priv->hw->pcsr, priv->tc_entries,
 216                                  priv->tc_entries_max);
 217 }
 218
 219 static int tc_setup_cls_u32(struct stmmac_priv *priv,
 220                             struct tc_cls_u32_offload *cls)
 221 {
 222         switch (cls->command) {
 223         case TC_CLSU32_REPLACE_KNODE:
 224                 tc_unfill_entry(priv, cls);
 225                 fallthrough;
 226         case TC_CLSU32_NEW_KNODE:
 227                 return tc_config_knode(priv, cls);
 228         case TC_CLSU32_DELETE_KNODE:
 229                 return tc_delete_knode(priv, cls);
 230         default:
 231                 return -EOPNOTSUPP;
 232         }
 233 }
 234
 235 static int tc_init(struct stmmac_priv *priv)
 236 {
 237         struct dma_features *dma_cap = &priv->dma_cap;
 238         unsigned int count;
 239         int i;
 240
 241         if (dma_cap->l3l4fnum) {
 242                 priv->flow_entries_max = dma_cap->l3l4fnum;
 243                 priv->flow_entries = devm_kcalloc(priv->device,
 244                                                   dma_cap->l3l4fnum,
 245                                                   sizeof(*priv->flow_entries),
 246                                                   GFP_KERNEL);
 247                 if (!priv->flow_entries)
 248                         return -ENOMEM;
 249
 250                 for (i = 0; i < priv->flow_entries_max; i++)
 251                         priv->flow_entries[i].idx = i;
 252
 253                 dev_info(priv->device, "Enabled Flow TC (entries=%d)\n",
 254                          priv->flow_entries_max);
 255         }
 256
 257         /* Fail silently as we can still use remaining features, e.g. CBS */
 258         if (!dma_cap->frpsel)
 259                 return 0;
 260
 261         switch (dma_cap->frpbs) {
 262         case 0x0:
 263                 priv->tc_off_max = 64;
 264                 break;
 265         case 0x1:
 266                 priv->tc_off_max = 128;
 267                 break;
 268         case 0x2:
 269                 priv->tc_off_max = 256;
 270                 break;
 271         default:
 272                 return -EINVAL;
 273         }
 274
 275         switch (dma_cap->frpes) {
 276         case 0x0:
 277                 count = 64;
 278                 break;
 279         case 0x1:
 280                 count = 128;
 281                 break;
 282         case 0x2:
 283                 count = 256;
 284                 break;
 285         default:
 286                 return -EINVAL;
 287         }
 288
 289         /* Reserve one last filter which lets all pass */
 290         priv->tc_entries_max = count;
 291         priv->tc_entries = devm_kcalloc(priv->device,
 292                         count, sizeof(*priv->tc_entries), GFP_KERNEL);
 293         if (!priv->tc_entries)
 294                 return -ENOMEM;
 295
 296         tc_fill_all_pass_entry(&priv->tc_entries[count - 1]);
 297
 298         dev_info(priv->device, "Enabling HW TC (entries=%d, max_off=%d)\n",
 299                         priv->tc_entries_max, priv->tc_off_max);
 300         return 0;
 301 }
 302
 303 static int tc_setup_cbs(struct stmmac_priv *priv,
 304                         struct tc_cbs_qopt_offload *qopt)
 305 {
 306         u32 tx_queues_count = priv->plat->tx_queues_to_use;
 307         u32 queue = qopt->queue;
 308         u32 ptr, speed_div;
 309         u32 mode_to_use;
 310         u64 value;
 311         int ret;
 312
 313         /* Queue 0 is not AVB capable */
 314         if (queue <= 0 || queue >= tx_queues_count)
 315                 return -EINVAL;
 316         if (!priv->dma_cap.av)
 317                 return -EOPNOTSUPP;
 318
 319         mode_to_use = priv->plat->tx_queues_cfg[queue].mode_to_use;
 320         if (mode_to_use == MTL_QUEUE_DCB && qopt->enable) {
 321                 ret = stmmac_dma_qmode(priv, priv->ioaddr, queue, MTL_QUEUE_AVB);
 322                 if (ret)
 323                         return ret;
 324
 325                 priv->plat->tx_queues_cfg[queue].mode_to_use = MTL_QUEUE_AVB;
 326         } else if (!qopt->enable) {
 327                 return stmmac_dma_qmode(priv, priv->ioaddr, queue, MTL_QUEUE_DCB);
 328         }
 329
 330         /* Port Transmit Rate and Speed Divider */
 331         ptr = (priv->speed == SPEED_100) ? 4 : 8;
 332         speed_div = (priv->speed == SPEED_100) ? 100000 : 1000000;
 333
 334         /* Final adjustments for HW */
 335         value = div_s64(qopt->idleslope * 1024ll * ptr, speed_div);
 336         priv->plat->tx_queues_cfg[queue].idle_slope = value & GENMASK(31, 0);
 337
 338         value = div_s64(-qopt->sendslope * 1024ll * ptr, speed_div);
 339         priv->plat->tx_queues_cfg[queue].send_slope = value & GENMASK(31, 0);
 340
 341         value = qopt->hicredit * 1024ll * 8;
 342         priv->plat->tx_queues_cfg[queue].high_credit = value & GENMASK(31, 0);
 343
 344         value = qopt->locredit * 1024ll * 8;
 345         priv->plat->tx_queues_cfg[queue].low_credit = value & GENMASK(31, 0);
 346
 347         ret = stmmac_config_cbs(priv, priv->hw,
 348                                 priv->plat->tx_queues_cfg[queue].send_slope,
 349                                 priv->plat->tx_queues_cfg[queue].idle_slope,
 350                                 priv->plat->tx_queues_cfg[queue].high_credit,
 351                                 priv->plat->tx_queues_cfg[queue].low_credit,
 352                                 queue);
 353         if (ret)
 354                 return ret;
 355
 356         dev_info(priv->device, "CBS queue %d: send %d, idle %d, hi %d, lo %d\n",
 357                         queue, qopt->sendslope, qopt->idleslope,
 358                         qopt->hicredit, qopt->locredit);
 359         return 0;
 360 }
 361
 362 static int tc_parse_flow_actions(struct stmmac_priv *priv,
 363                                  struct flow_action *action,
 364                                  struct stmmac_flow_entry *entry,
 365                                  struct netlink_ext_ack *extack)
 366 {
 367         struct flow_action_entry *act;
 368         int i;
 369
 370         if (!flow_action_has_entries(action))
 371                 return -EINVAL;
 372
 373         if (!flow_action_basic_hw_stats_check(action, extack))
 374                 return -EOPNOTSUPP;
 375
 376         flow_action_for_each(i, act, action) {
 377                 switch (act->id) {
 378                 case FLOW_ACTION_DROP:
 379                         entry->action |= STMMAC_FLOW_ACTION_DROP;
 380                         return 0;
 381                 default:
 382                         break;
 383                 }
 384         }
 385
 386         /* Nothing to do, maybe inverse filter ? */
 387         return 0;
 388 }
 389
 390 static int tc_add_basic_flow(struct stmmac_priv *priv,
 391                              struct flow_cls_offload *cls,
 392                              struct stmmac_flow_entry *entry)
 393 {
 394         struct flow_rule *rule = flow_cls_offload_flow_rule(cls);
 395         struct flow_dissector *dissector = rule->match.dissector;
 396         struct flow_match_basic match;
 397
 398         /* Nothing to do here */
 399         if (!dissector_uses_key(dissector, FLOW_DISSECTOR_KEY_BASIC))
 400                 return -EINVAL;
 401
 402         flow_rule_match_basic(rule, &match);
 403         entry->ip_proto = match.key->ip_proto;
 404         return 0;
 405 }
 406
 407 static int tc_add_ip4_flow(struct stmmac_priv *priv,
 408                            struct flow_cls_offload *cls,
 409                            struct stmmac_flow_entry *entry)
 410 {
 411         struct flow_rule *rule = flow_cls_offload_flow_rule(cls);
 412         struct flow_dissector *dissector = rule->match.dissector;
 413         bool inv = entry->action & STMMAC_FLOW_ACTION_DROP;
 414         struct flow_match_ipv4_addrs match;
 415         u32 hw_match;
 416         int ret;
 417
 418         /* Nothing to do here */
 419         if (!dissector_uses_key(dissector, FLOW_DISSECTOR_KEY_IPV4_ADDRS))
 420                 return -EINVAL;
 421
 422         flow_rule_match_ipv4_addrs(rule, &match);
 423         hw_match = ntohl(match.key->src) & ntohl(match.mask->src);
 424         if (hw_match) {
 425                 ret = stmmac_config_l3_filter(priv, priv->hw, entry->idx, true,
 426                                               false, true, inv, hw_match);
 427                 if (ret)
 428                         return ret;
 429         }
 430
 431         hw_match = ntohl(match.key->dst) & ntohl(match.mask->dst);
 432         if (hw_match) {
 433                 ret = stmmac_config_l3_filter(priv, priv->hw, entry->idx, true,
 434                                               false, false, inv, hw_match);
 435                 if (ret)
 436                         return ret;
 437         }
 438
 439         return 0;
 440 }
 441
 442 static int tc_add_ports_flow(struct stmmac_priv *priv,
 443                              struct flow_cls_offload *cls,
 444                              struct stmmac_flow_entry *entry)
 445 {
 446         struct flow_rule *rule = flow_cls_offload_flow_rule(cls);
 447         struct flow_dissector *dissector = rule->match.dissector;
 448         bool inv = entry->action & STMMAC_FLOW_ACTION_DROP;
 449         struct flow_match_ports match;
 450         u32 hw_match;
 451         bool is_udp;
 452         int ret;
 453
 454         /* Nothing to do here */
 455         if (!dissector_uses_key(dissector, FLOW_DISSECTOR_KEY_PORTS))
 456                 return -EINVAL;
 457
 458         switch (entry->ip_proto) {
 459         case IPPROTO_TCP:
 460                 is_udp = false;
 461                 break;
 462         case IPPROTO_UDP:
 463                 is_udp = true;
 464                 break;
 465         default:
 466                 return -EINVAL;
 467         }
 468
 469         flow_rule_match_ports(rule, &match);
 470
 471         hw_match = ntohs(match.key->src) & ntohs(match.mask->src);
 472         if (hw_match) {
 473                 ret = stmmac_config_l4_filter(priv, priv->hw, entry->idx, true,
 474                                               is_udp, true, inv, hw_match);
 475                 if (ret)
 476                         return ret;
 477         }
 478
 479         hw_match = ntohs(match.key->dst) & ntohs(match.mask->dst);
 480         if (hw_match) {
 481                 ret = stmmac_config_l4_filter(priv, priv->hw, entry->idx, true,
 482                                               is_udp, false, inv, hw_match);
 483                 if (ret)
 484                         return ret;
 485         }
 486
 487         entry->is_l4 = true;
 488         return 0;
 489 }
 490
 491 static struct stmmac_flow_entry *tc_find_flow(struct stmmac_priv *priv,
 492                                               struct flow_cls_offload *cls,
 493                                               bool get_free)
 494 {
 495         int i;
 496
 497         for (i = 0; i < priv->flow_entries_max; i++) {
 498                 struct stmmac_flow_entry *entry = &priv->flow_entries[i];
 499
 500                 if (entry->cookie == cls->cookie)
 501                         return entry;
 502                 if (get_free && (entry->in_use == false))
 503                         return entry;
 504         }
 505
 506         return NULL;
 507 }
 508
 509 static struct {
 510         int (*fn)(struct stmmac_priv *priv, struct flow_cls_offload *cls,
 511                   struct stmmac_flow_entry *entry);
 512 } tc_flow_parsers[] = {
 513         { .fn = tc_add_basic_flow },
 514         { .fn = tc_add_ip4_flow },
 515         { .fn = tc_add_ports_flow },
 516 };
 517
 518 static int tc_add_flow(struct stmmac_priv *priv,
 519                        struct flow_cls_offload *cls)
 520 {
 521         struct stmmac_flow_entry *entry = tc_find_flow(priv, cls, false);
 522         struct flow_rule *rule = flow_cls_offload_flow_rule(cls);
 523         int i, ret;
 524
 525         if (!entry) {
 526                 entry = tc_find_flow(priv, cls, true);
 527                 if (!entry)
 528                         return -ENOENT;
 529         }
 530
 531         ret = tc_parse_flow_actions(priv, &rule->action, entry,
 532                                     cls->common.extack);
 533         if (ret)
 534                 return ret;
 535
 536         for (i = 0; i < ARRAY_SIZE(tc_flow_parsers); i++) {
 537                 ret = tc_flow_parsers[i].fn(priv, cls, entry);
 538                 if (!ret) {
 539                         entry->in_use = true;
 540                         continue;
 541                 }
 542         }
 543
 544         if (!entry->in_use)
 545                 return -EINVAL;
 546
 547         entry->cookie = cls->cookie;
 548         return 0;
 549 }
 550
 551 static int tc_del_flow(struct stmmac_priv *priv,
 552                        struct flow_cls_offload *cls)
 553 {
 554         struct stmmac_flow_entry *entry = tc_find_flow(priv, cls, false);
 555         int ret;
 556
 557         if (!entry || !entry->in_use)
 558                 return -ENOENT;
 559
 560         if (entry->is_l4) {
 561                 ret = stmmac_config_l4_filter(priv, priv->hw, entry->idx, false,
 562                                               false, false, false, 0);
 563         } else {
 564                 ret = stmmac_config_l3_filter(priv, priv->hw, entry->idx, false,
 565                                               false, false, false, 0);
 566         }
 567
 568         entry->in_use = false;
 569         entry->cookie = 0;
 570         entry->is_l4 = false;
 571         return ret;
 572 }
 573
 574 static int tc_setup_cls(struct stmmac_priv *priv,
 575                         struct flow_cls_offload *cls)
 576 {
 577         int ret = 0;
 578
 579         /* When RSS is enabled, the filtering will be bypassed */
 580         if (priv->rss.enable)
 581                 return -EBUSY;
 582
 583         switch (cls->command) {
 584         case FLOW_CLS_REPLACE:
 585                 ret = tc_add_flow(priv, cls);
 586                 break;
 587         case FLOW_CLS_DESTROY:
 588                 ret = tc_del_flow(priv, cls);
 589                 break;
 590         default:
 591                 return -EOPNOTSUPP;
 592         }
 593
 594         return ret;
 595 }
 596
 597 static int tc_setup_taprio(struct stmmac_priv *priv,
 598                            struct tc_taprio_qopt_offload *qopt)
 599 {
 600         u32 size, wid = priv->dma_cap.estwid, dep = priv->dma_cap.estdep;
 601         struct plat_stmmacenet_data *plat = priv->plat;
 602         struct timespec64 time;
 603         bool fpe = false;
 604         int i, ret = 0;
 605         u64 ctr;
 606
 607         if (!priv->dma_cap.estsel)
 608                 return -EOPNOTSUPP;
 609
 610         switch (wid) {
 611         case 0x1:
 612                 wid = 16;
 613                 break;
 614         case 0x2:
 615                 wid = 20;
 616                 break;
 617         case 0x3:
 618                 wid = 24;
 619                 break;
 620         default:
 621                 return -EOPNOTSUPP;
 622         }
 623
 624         switch (dep) {
 625         case 0x1:
 626                 dep = 64;
 627                 break;
 628         case 0x2:
 629                 dep = 128;
 630                 break;
 631         case 0x3:
 632                 dep = 256;
 633                 break;
 634         case 0x4:
 635                 dep = 512;
 636                 break;
 637         case 0x5:
 638                 dep = 1024;
 639                 break;
 640         default:
 641                 return -EOPNOTSUPP;
 642         }
 643
 644         if (!qopt->enable)
 645                 goto disable;
 646         if (qopt->num_entries >= dep)
 647                 return -EINVAL;
 648         if (!qopt->base_time)
 649                 return -ERANGE;
 650         if (!qopt->cycle_time)
 651                 return -ERANGE;
 652
 653         if (!plat->est) {
 654                 plat->est = devm_kzalloc(priv->device, sizeof(*plat->est),
 655                                          GFP_KERNEL);
 656                 if (!plat->est)
 657                         return -ENOMEM;
 658         } else {
 659                 memset(plat->est, 0, sizeof(*plat->est));
 660         }
 661
 662         size = qopt->num_entries;
 663
 664         priv->plat->est->gcl_size = size;
 665         priv->plat->est->enable = qopt->enable;
 666
 667         for (i = 0; i < size; i++) {
 668                 s64 delta_ns = qopt->entries[i].interval;
 669                 u32 gates = qopt->entries[i].gate_mask;
 670
 671                 if (delta_ns > GENMASK(wid, 0))
 672                         return -ERANGE;
 673                 if (gates > GENMASK(31 - wid, 0))
 674                         return -ERANGE;
 675
 676                 switch (qopt->entries[i].command) {
 677                 case TC_TAPRIO_CMD_SET_GATES:
 678                         if (fpe)
 679                                 return -EINVAL;
 680                         break;
 681                 case TC_TAPRIO_CMD_SET_AND_HOLD:
 682                         gates |= BIT(0);
 683                         fpe = true;
 684                         break;
 685                 case TC_TAPRIO_CMD_SET_AND_RELEASE:
 686                         gates &= ~BIT(0);
 687                         fpe = true;
 688                         break;
 689                 default:
 690                         return -EOPNOTSUPP;
 691                 }
 692
 693                 priv->plat->est->gcl[i] = delta_ns | (gates << wid);
 694         }
 695
 696         /* Adjust for real system time */
 697         time = ktime_to_timespec64(qopt->base_time);
 698         priv->plat->est->btr[0] = (u32)time.tv_nsec;
 699         priv->plat->est->btr[1] = (u32)time.tv_sec;
 700
 701         ctr = qopt->cycle_time;
 702         priv->plat->est->ctr[0] = do_div(ctr, NSEC_PER_SEC);
 703         priv->plat->est->ctr[1] = (u32)ctr;
 704
 705         if (fpe && !priv->dma_cap.fpesel)
 706                 return -EOPNOTSUPP;
 707
 708         ret = stmmac_fpe_configure(priv, priv->ioaddr,
 709                                    priv->plat->tx_queues_to_use,
 710                                    priv->plat->rx_queues_to_use, fpe);
 711         if (ret && fpe) {
 712                 netdev_err(priv->dev, "failed to enable Frame Preemption\n");
 713                 return ret;
 714         }
 715
 716         ret = stmmac_est_configure(priv, priv->ioaddr, priv->plat->est,
 717                                    priv->plat->clk_ptp_rate);
 718         if (ret) {
 719                 netdev_err(priv->dev, "failed to configure EST\n");
 720                 goto disable;
 721         }
 722
 723         netdev_info(priv->dev, "configured EST\n");
 724         return 0;
 725
 726 disable:
 727         priv->plat->est->enable = false;
 728         stmmac_est_configure(priv, priv->ioaddr, priv->plat->est,
 729                              priv->plat->clk_ptp_rate);
 730         return ret;
 731 }
 732
 733 static int tc_setup_etf(struct stmmac_priv *priv,
 734                         struct tc_etf_qopt_offload *qopt)
 735 {
 736         if (!priv->dma_cap.tbssel)
 737                 return -EOPNOTSUPP;
 738         if (qopt->queue >= priv->plat->tx_queues_to_use)
 739                 return -EINVAL;
 740         if (!(priv->tx_queue[qopt->queue].tbs & STMMAC_TBS_AVAIL))
 741                 return -EINVAL;
 742
 743         if (qopt->enable)
 744                 priv->tx_queue[qopt->queue].tbs |= STMMAC_TBS_EN;
 745         else
 746                 priv->tx_queue[qopt->queue].tbs &= ~STMMAC_TBS_EN;
 747
 748         netdev_info(priv->dev, "%s ETF for Queue %d\n",
 749                     qopt->enable ? "enabled" : "disabled", qopt->queue);
 750         return 0;
 751 }
 752
 753 const struct stmmac_tc_ops dwmac510_tc_ops = {
 754         .init = tc_init,
 755         .setup_cls_u32 = tc_setup_cls_u32,
 756         .setup_cbs = tc_setup_cbs,
 757         .setup_cls = tc_setup_cls,
 758         .setup_taprio = tc_setup_taprio,
 759         .setup_etf = tc_setup_etf,
 760 };