drivers/net/sfc/sfc_mae.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  *
   3  * Copyright(c) 2019-2021 Xilinx, Inc.
   4  * Copyright(c) 2019 Solarflare Communications Inc.
   5  *
   6  * This software was jointly developed between OKTET Labs (under contract
   7  * for Solarflare) and Solarflare Communications, Inc.
   8  */
   9
  10 #include <stdbool.h>
  11
  12 #include <rte_bitops.h>
  13 #include <rte_common.h>
  14 #include <rte_vxlan.h>
  15
  16 #include "efx.h"
  17
  18 #include "sfc.h"
  19 #include "sfc_flow_tunnel.h"
  20 #include "sfc_mae_counter.h"
  21 #include "sfc_log.h"
  22 #include "sfc_switch.h"
  23 #include "sfc_service.h"
  24
  25 static int
  26 sfc_mae_assign_entity_mport(struct sfc_adapter *sa,
  27                             efx_mport_sel_t *mportp)
  28 {
  29         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
  30
  31         return efx_mae_mport_by_pcie_function(encp->enc_pf, encp->enc_vf,
  32                                               mportp);
  33 }
  34
  35 static int
  36 sfc_mae_counter_registry_init(struct sfc_mae_counter_registry *registry,
  37                               uint32_t nb_counters_max)
  38 {
  39         return sfc_mae_counters_init(&registry->counters, nb_counters_max);
  40 }
  41
  42 static void
  43 sfc_mae_counter_registry_fini(struct sfc_mae_counter_registry *registry)
  44 {
  45         sfc_mae_counters_fini(&registry->counters);
  46 }
  47
  48 static int
  49 sfc_mae_internal_rule_find_empty_slot(struct sfc_adapter *sa,
  50                                       struct sfc_mae_rule **rule)
  51 {
  52         struct sfc_mae *mae = &sa->mae;
  53         struct sfc_mae_internal_rules *internal_rules = &mae->internal_rules;
  54         unsigned int entry;
  55         int rc;
  56
  57         for (entry = 0; entry < SFC_MAE_NB_RULES_MAX; entry++) {
  58                 if (internal_rules->rules[entry].spec == NULL)
  59                         break;
  60         }
  61
  62         if (entry == SFC_MAE_NB_RULES_MAX) {
  63                 rc = ENOSPC;
  64                 sfc_err(sa, "failed too many rules (%u rules used)", entry);
  65                 goto fail_too_many_rules;
  66         }
  67
  68         *rule = &internal_rules->rules[entry];
  69
  70         return 0;
  71
  72 fail_too_many_rules:
  73         return rc;
  74 }
  75
  76 int
  77 sfc_mae_rule_add_mport_match_deliver(struct sfc_adapter *sa,
  78                                      const efx_mport_sel_t *mport_match,
  79                                      const efx_mport_sel_t *mport_deliver,
  80                                      int prio, struct sfc_mae_rule **rulep)
  81 {
  82         struct sfc_mae *mae = &sa->mae;
  83         struct sfc_mae_rule *rule;
  84         int rc;
  85
  86         sfc_log_init(sa, "entry");
  87
  88         if (prio > 0 && (unsigned int)prio >= mae->nb_action_rule_prios_max) {
  89                 rc = EINVAL;
  90                 sfc_err(sa, "failed: invalid priority %d (max %u)", prio,
  91                         mae->nb_action_rule_prios_max);
  92                 goto fail_invalid_prio;
  93         }
  94         if (prio < 0)
  95                 prio = mae->nb_action_rule_prios_max - 1;
  96
  97         rc = sfc_mae_internal_rule_find_empty_slot(sa, &rule);
  98         if (rc != 0)
  99                 goto fail_find_empty_slot;
 100
 101         sfc_log_init(sa, "init MAE match spec");
 102         rc = efx_mae_match_spec_init(sa->nic, EFX_MAE_RULE_ACTION,
 103                                      (uint32_t)prio, &rule->spec);
 104         if (rc != 0) {
 105                 sfc_err(sa, "failed to init MAE match spec");
 106                 goto fail_match_init;
 107         }
 108
 109         rc = efx_mae_match_spec_mport_set(rule->spec, mport_match, NULL);
 110         if (rc != 0) {
 111                 sfc_err(sa, "failed to get MAE match mport selector");
 112                 goto fail_mport_set;
 113         }
 114
 115         rc = efx_mae_action_set_spec_init(sa->nic, &rule->actions);
 116         if (rc != 0) {
 117                 sfc_err(sa, "failed to init MAE action set");
 118                 goto fail_action_init;
 119         }
 120
 121         rc = efx_mae_action_set_populate_deliver(rule->actions,
 122                                                  mport_deliver);
 123         if (rc != 0) {
 124                 sfc_err(sa, "failed to populate deliver action");
 125                 goto fail_populate_deliver;
 126         }
 127
 128         rc = efx_mae_action_set_alloc(sa->nic, rule->actions,
 129                                       &rule->action_set);
 130         if (rc != 0) {
 131                 sfc_err(sa, "failed to allocate action set");
 132                 goto fail_action_set_alloc;
 133         }
 134
 135         rc = efx_mae_action_rule_insert(sa->nic, rule->spec, NULL,
 136                                         &rule->action_set,
 137                                         &rule->rule_id);
 138         if (rc != 0) {
 139                 sfc_err(sa, "failed to insert action rule");
 140                 goto fail_rule_insert;
 141         }
 142
 143         *rulep = rule;
 144
 145         sfc_log_init(sa, "done");
 146
 147         return 0;
 148
 149 fail_rule_insert:
 150         efx_mae_action_set_free(sa->nic, &rule->action_set);
 151
 152 fail_action_set_alloc:
 153 fail_populate_deliver:
 154         efx_mae_action_set_spec_fini(sa->nic, rule->actions);
 155
 156 fail_action_init:
 157 fail_mport_set:
 158         efx_mae_match_spec_fini(sa->nic, rule->spec);
 159
 160 fail_match_init:
 161 fail_find_empty_slot:
 162 fail_invalid_prio:
 163         sfc_log_init(sa, "failed: %s", rte_strerror(rc));
 164         return rc;
 165 }
 166
 167 void
 168 sfc_mae_rule_del(struct sfc_adapter *sa, struct sfc_mae_rule *rule)
 169 {
 170         if (rule == NULL || rule->spec == NULL)
 171                 return;
 172
 173         efx_mae_action_rule_remove(sa->nic, &rule->rule_id);
 174         efx_mae_action_set_free(sa->nic, &rule->action_set);
 175         efx_mae_action_set_spec_fini(sa->nic, rule->actions);
 176         efx_mae_match_spec_fini(sa->nic, rule->spec);
 177
 178         rule->spec = NULL;
 179 }
 180
 181 int
 182 sfc_mae_attach(struct sfc_adapter *sa)
 183 {
 184         struct sfc_adapter_shared * const sas = sfc_sa2shared(sa);
 185         struct sfc_mae_switch_port_request switch_port_request = {0};
 186         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 187         efx_mport_sel_t entity_mport;
 188         struct sfc_mae *mae = &sa->mae;
 189         struct sfc_mae_bounce_eh *bounce_eh = &mae->bounce_eh;
 190         efx_mae_limits_t limits;
 191         int rc;
 192
 193         sfc_log_init(sa, "entry");
 194
 195         if (!encp->enc_mae_supported) {
 196                 mae->status = SFC_MAE_STATUS_UNSUPPORTED;
 197                 return 0;
 198         }
 199
 200         sfc_log_init(sa, "init MAE");
 201         rc = efx_mae_init(sa->nic);
 202         if (rc != 0)
 203                 goto fail_mae_init;
 204
 205         sfc_log_init(sa, "get MAE limits");
 206         rc = efx_mae_get_limits(sa->nic, &limits);
 207         if (rc != 0)
 208                 goto fail_mae_get_limits;
 209
 210         sfc_log_init(sa, "init MAE counter registry");
 211         rc = sfc_mae_counter_registry_init(&mae->counter_registry,
 212                                            limits.eml_max_n_counters);
 213         if (rc != 0) {
 214                 sfc_err(sa, "failed to init MAE counters registry for %u entries: %s",
 215                         limits.eml_max_n_counters, rte_strerror(rc));
 216                 goto fail_counter_registry_init;
 217         }
 218
 219         sfc_log_init(sa, "assign entity MPORT");
 220         rc = sfc_mae_assign_entity_mport(sa, &entity_mport);
 221         if (rc != 0)
 222                 goto fail_mae_assign_entity_mport;
 223
 224         sfc_log_init(sa, "assign RTE switch domain");
 225         rc = sfc_mae_assign_switch_domain(sa, &mae->switch_domain_id);
 226         if (rc != 0)
 227                 goto fail_mae_assign_switch_domain;
 228
 229         sfc_log_init(sa, "assign RTE switch port");
 230         switch_port_request.type = SFC_MAE_SWITCH_PORT_INDEPENDENT;
 231         switch_port_request.entity_mportp = &entity_mport;
 232         /* RTE ethdev MPORT matches that of the entity for independent ports. */
 233         switch_port_request.ethdev_mportp = &entity_mport;
 234         switch_port_request.ethdev_port_id = sas->port_id;
 235         rc = sfc_mae_assign_switch_port(mae->switch_domain_id,
 236                                         &switch_port_request,
 237                                         &mae->switch_port_id);
 238         if (rc != 0)
 239                 goto fail_mae_assign_switch_port;
 240
 241         sfc_log_init(sa, "allocate encap. header bounce buffer");
 242         bounce_eh->buf_size = limits.eml_encap_header_size_limit;
 243         bounce_eh->buf = rte_malloc("sfc_mae_bounce_eh",
 244                                     bounce_eh->buf_size, 0);
 245         if (bounce_eh->buf == NULL)
 246                 goto fail_mae_alloc_bounce_eh;
 247
 248         mae->status = SFC_MAE_STATUS_SUPPORTED;
 249         mae->nb_outer_rule_prios_max = limits.eml_max_n_outer_prios;
 250         mae->nb_action_rule_prios_max = limits.eml_max_n_action_prios;
 251         mae->encap_types_supported = limits.eml_encap_types_supported;
 252         TAILQ_INIT(&mae->outer_rules);
 253         TAILQ_INIT(&mae->encap_headers);
 254         TAILQ_INIT(&mae->action_sets);
 255
 256         sfc_log_init(sa, "done");
 257
 258         return 0;
 259
 260 fail_mae_alloc_bounce_eh:
 261 fail_mae_assign_switch_port:
 262 fail_mae_assign_switch_domain:
 263 fail_mae_assign_entity_mport:
 264         sfc_mae_counter_registry_fini(&mae->counter_registry);
 265
 266 fail_counter_registry_init:
 267 fail_mae_get_limits:
 268         efx_mae_fini(sa->nic);
 269
 270 fail_mae_init:
 271         sfc_log_init(sa, "failed %d", rc);
 272
 273         return rc;
 274 }
 275
 276 void
 277 sfc_mae_detach(struct sfc_adapter *sa)
 278 {
 279         struct sfc_mae *mae = &sa->mae;
 280         enum sfc_mae_status status_prev = mae->status;
 281
 282         sfc_log_init(sa, "entry");
 283
 284         mae->nb_action_rule_prios_max = 0;
 285         mae->status = SFC_MAE_STATUS_UNKNOWN;
 286
 287         if (status_prev != SFC_MAE_STATUS_SUPPORTED)
 288                 return;
 289
 290         rte_free(mae->bounce_eh.buf);
 291         sfc_mae_counter_registry_fini(&mae->counter_registry);
 292
 293         efx_mae_fini(sa->nic);
 294
 295         sfc_log_init(sa, "done");
 296 }
 297
 298 static struct sfc_mae_outer_rule *
 299 sfc_mae_outer_rule_attach(struct sfc_adapter *sa,
 300                           const efx_mae_match_spec_t *match_spec,
 301                           efx_tunnel_protocol_t encap_type)
 302 {
 303         struct sfc_mae_outer_rule *rule;
 304         struct sfc_mae *mae = &sa->mae;
 305
 306         SFC_ASSERT(sfc_adapter_is_locked(sa));
 307
 308         TAILQ_FOREACH(rule, &mae->outer_rules, entries) {
 309                 if (efx_mae_match_specs_equal(rule->match_spec, match_spec) &&
 310                     rule->encap_type == encap_type) {
 311                         sfc_dbg(sa, "attaching to outer_rule=%p", rule);
 312                         ++(rule->refcnt);
 313                         return rule;
 314                 }
 315         }
 316
 317         return NULL;
 318 }
 319
 320 static int
 321 sfc_mae_outer_rule_add(struct sfc_adapter *sa,
 322                        efx_mae_match_spec_t *match_spec,
 323                        efx_tunnel_protocol_t encap_type,
 324                        struct sfc_mae_outer_rule **rulep)
 325 {
 326         struct sfc_mae_outer_rule *rule;
 327         struct sfc_mae *mae = &sa->mae;
 328
 329         SFC_ASSERT(sfc_adapter_is_locked(sa));
 330
 331         rule = rte_zmalloc("sfc_mae_outer_rule", sizeof(*rule), 0);
 332         if (rule == NULL)
 333                 return ENOMEM;
 334
 335         rule->refcnt = 1;
 336         rule->match_spec = match_spec;
 337         rule->encap_type = encap_type;
 338
 339         rule->fw_rsrc.rule_id.id = EFX_MAE_RSRC_ID_INVALID;
 340
 341         TAILQ_INSERT_TAIL(&mae->outer_rules, rule, entries);
 342
 343         *rulep = rule;
 344
 345         sfc_dbg(sa, "added outer_rule=%p", rule);
 346
 347         return 0;
 348 }
 349
 350 static void
 351 sfc_mae_outer_rule_del(struct sfc_adapter *sa,
 352                        struct sfc_mae_outer_rule *rule)
 353 {
 354         struct sfc_mae *mae = &sa->mae;
 355
 356         SFC_ASSERT(sfc_adapter_is_locked(sa));
 357         SFC_ASSERT(rule->refcnt != 0);
 358
 359         --(rule->refcnt);
 360
 361         if (rule->refcnt != 0)
 362                 return;
 363
 364         if (rule->fw_rsrc.rule_id.id != EFX_MAE_RSRC_ID_INVALID ||
 365             rule->fw_rsrc.refcnt != 0) {
 366                 sfc_err(sa, "deleting outer_rule=%p abandons its FW resource: OR_ID=0x%08x, refcnt=%u",
 367                         rule, rule->fw_rsrc.rule_id.id, rule->fw_rsrc.refcnt);
 368         }
 369
 370         efx_mae_match_spec_fini(sa->nic, rule->match_spec);
 371
 372         TAILQ_REMOVE(&mae->outer_rules, rule, entries);
 373         rte_free(rule);
 374
 375         sfc_dbg(sa, "deleted outer_rule=%p", rule);
 376 }
 377
 378 static int
 379 sfc_mae_outer_rule_enable(struct sfc_adapter *sa,
 380                           struct sfc_mae_outer_rule *rule,
 381                           efx_mae_match_spec_t *match_spec_action)
 382 {
 383         struct sfc_mae_fw_rsrc *fw_rsrc = &rule->fw_rsrc;
 384         int rc;
 385
 386         SFC_ASSERT(sfc_adapter_is_locked(sa));
 387
 388         if (fw_rsrc->refcnt == 0) {
 389                 SFC_ASSERT(fw_rsrc->rule_id.id == EFX_MAE_RSRC_ID_INVALID);
 390                 SFC_ASSERT(rule->match_spec != NULL);
 391
 392                 rc = efx_mae_outer_rule_insert(sa->nic, rule->match_spec,
 393                                                rule->encap_type,
 394                                                &fw_rsrc->rule_id);
 395                 if (rc != 0) {
 396                         sfc_err(sa, "failed to enable outer_rule=%p: %s",
 397                                 rule, strerror(rc));
 398                         return rc;
 399                 }
 400         }
 401
 402         if (match_spec_action == NULL)
 403                 goto skip_action_rule;
 404
 405         rc = efx_mae_match_spec_outer_rule_id_set(match_spec_action,
 406                                                   &fw_rsrc->rule_id);
 407         if (rc != 0) {
 408                 if (fw_rsrc->refcnt == 0) {
 409                         (void)efx_mae_outer_rule_remove(sa->nic,
 410                                                         &fw_rsrc->rule_id);
 411                         fw_rsrc->rule_id.id = EFX_MAE_RSRC_ID_INVALID;
 412                 }
 413
 414                 sfc_err(sa, "can't match on outer rule ID: %s", strerror(rc));
 415
 416                 return rc;
 417         }
 418
 419 skip_action_rule:
 420         if (fw_rsrc->refcnt == 0) {
 421                 sfc_dbg(sa, "enabled outer_rule=%p: OR_ID=0x%08x",
 422                         rule, fw_rsrc->rule_id.id);
 423         }
 424
 425         ++(fw_rsrc->refcnt);
 426
 427         return 0;
 428 }
 429
 430 static void
 431 sfc_mae_outer_rule_disable(struct sfc_adapter *sa,
 432                            struct sfc_mae_outer_rule *rule)
 433 {
 434         struct sfc_mae_fw_rsrc *fw_rsrc = &rule->fw_rsrc;
 435         int rc;
 436
 437         SFC_ASSERT(sfc_adapter_is_locked(sa));
 438
 439         if (fw_rsrc->rule_id.id == EFX_MAE_RSRC_ID_INVALID ||
 440             fw_rsrc->refcnt == 0) {
 441                 sfc_err(sa, "failed to disable outer_rule=%p: already disabled; OR_ID=0x%08x, refcnt=%u",
 442                         rule, fw_rsrc->rule_id.id, fw_rsrc->refcnt);
 443                 return;
 444         }
 445
 446         if (fw_rsrc->refcnt == 1) {
 447                 rc = efx_mae_outer_rule_remove(sa->nic, &fw_rsrc->rule_id);
 448                 if (rc == 0) {
 449                         sfc_dbg(sa, "disabled outer_rule=%p with OR_ID=0x%08x",
 450                                 rule, fw_rsrc->rule_id.id);
 451                 } else {
 452                         sfc_err(sa, "failed to disable outer_rule=%p with OR_ID=0x%08x: %s",
 453                                 rule, fw_rsrc->rule_id.id, strerror(rc));
 454                 }
 455                 fw_rsrc->rule_id.id = EFX_MAE_RSRC_ID_INVALID;
 456         }
 457
 458         --(fw_rsrc->refcnt);
 459 }
 460
 461 static struct sfc_mae_encap_header *
 462 sfc_mae_encap_header_attach(struct sfc_adapter *sa,
 463                             const struct sfc_mae_bounce_eh *bounce_eh)
 464 {
 465         struct sfc_mae_encap_header *encap_header;
 466         struct sfc_mae *mae = &sa->mae;
 467
 468         SFC_ASSERT(sfc_adapter_is_locked(sa));
 469
 470         TAILQ_FOREACH(encap_header, &mae->encap_headers, entries) {
 471                 if (encap_header->size == bounce_eh->size &&
 472                     memcmp(encap_header->buf, bounce_eh->buf,
 473                            bounce_eh->size) == 0) {
 474                         sfc_dbg(sa, "attaching to encap_header=%p",
 475                                 encap_header);
 476                         ++(encap_header->refcnt);
 477                         return encap_header;
 478                 }
 479         }
 480
 481         return NULL;
 482 }
 483
 484 static int
 485 sfc_mae_encap_header_add(struct sfc_adapter *sa,
 486                          const struct sfc_mae_bounce_eh *bounce_eh,
 487                          struct sfc_mae_encap_header **encap_headerp)
 488 {
 489         struct sfc_mae_encap_header *encap_header;
 490         struct sfc_mae *mae = &sa->mae;
 491
 492         SFC_ASSERT(sfc_adapter_is_locked(sa));
 493
 494         encap_header = rte_zmalloc("sfc_mae_encap_header",
 495                                    sizeof(*encap_header), 0);
 496         if (encap_header == NULL)
 497                 return ENOMEM;
 498
 499         encap_header->size = bounce_eh->size;
 500
 501         encap_header->buf = rte_malloc("sfc_mae_encap_header_buf",
 502                                        encap_header->size, 0);
 503         if (encap_header->buf == NULL) {
 504                 rte_free(encap_header);
 505                 return ENOMEM;
 506         }
 507
 508         rte_memcpy(encap_header->buf, bounce_eh->buf, bounce_eh->size);
 509
 510         encap_header->refcnt = 1;
 511         encap_header->type = bounce_eh->type;
 512         encap_header->fw_rsrc.eh_id.id = EFX_MAE_RSRC_ID_INVALID;
 513
 514         TAILQ_INSERT_TAIL(&mae->encap_headers, encap_header, entries);
 515
 516         *encap_headerp = encap_header;
 517
 518         sfc_dbg(sa, "added encap_header=%p", encap_header);
 519
 520         return 0;
 521 }
 522
 523 static void
 524 sfc_mae_encap_header_del(struct sfc_adapter *sa,
 525                        struct sfc_mae_encap_header *encap_header)
 526 {
 527         struct sfc_mae *mae = &sa->mae;
 528
 529         if (encap_header == NULL)
 530                 return;
 531
 532         SFC_ASSERT(sfc_adapter_is_locked(sa));
 533         SFC_ASSERT(encap_header->refcnt != 0);
 534
 535         --(encap_header->refcnt);
 536
 537         if (encap_header->refcnt != 0)
 538                 return;
 539
 540         if (encap_header->fw_rsrc.eh_id.id != EFX_MAE_RSRC_ID_INVALID ||
 541             encap_header->fw_rsrc.refcnt != 0) {
 542                 sfc_err(sa, "deleting encap_header=%p abandons its FW resource: EH_ID=0x%08x, refcnt=%u",
 543                         encap_header, encap_header->fw_rsrc.eh_id.id,
 544                         encap_header->fw_rsrc.refcnt);
 545         }
 546
 547         TAILQ_REMOVE(&mae->encap_headers, encap_header, entries);
 548         rte_free(encap_header->buf);
 549         rte_free(encap_header);
 550
 551         sfc_dbg(sa, "deleted encap_header=%p", encap_header);
 552 }
 553
 554 static int
 555 sfc_mae_encap_header_enable(struct sfc_adapter *sa,
 556                             struct sfc_mae_encap_header *encap_header,
 557                             efx_mae_actions_t *action_set_spec)
 558 {
 559         struct sfc_mae_fw_rsrc *fw_rsrc;
 560         int rc;
 561
 562         if (encap_header == NULL)
 563                 return 0;
 564
 565         SFC_ASSERT(sfc_adapter_is_locked(sa));
 566
 567         fw_rsrc = &encap_header->fw_rsrc;
 568
 569         if (fw_rsrc->refcnt == 0) {
 570                 SFC_ASSERT(fw_rsrc->eh_id.id == EFX_MAE_RSRC_ID_INVALID);
 571                 SFC_ASSERT(encap_header->buf != NULL);
 572                 SFC_ASSERT(encap_header->size != 0);
 573
 574                 rc = efx_mae_encap_header_alloc(sa->nic, encap_header->type,
 575                                                 encap_header->buf,
 576                                                 encap_header->size,
 577                                                 &fw_rsrc->eh_id);
 578                 if (rc != 0) {
 579                         sfc_err(sa, "failed to enable encap_header=%p: %s",
 580                                 encap_header, strerror(rc));
 581                         return rc;
 582                 }
 583         }
 584
 585         rc = efx_mae_action_set_fill_in_eh_id(action_set_spec,
 586                                               &fw_rsrc->eh_id);
 587         if (rc != 0) {
 588                 if (fw_rsrc->refcnt == 0) {
 589                         (void)efx_mae_encap_header_free(sa->nic,
 590                                                         &fw_rsrc->eh_id);
 591                         fw_rsrc->eh_id.id = EFX_MAE_RSRC_ID_INVALID;
 592                 }
 593
 594                 sfc_err(sa, "can't fill in encap. header ID: %s", strerror(rc));
 595
 596                 return rc;
 597         }
 598
 599         if (fw_rsrc->refcnt == 0) {
 600                 sfc_dbg(sa, "enabled encap_header=%p: EH_ID=0x%08x",
 601                         encap_header, fw_rsrc->eh_id.id);
 602         }
 603
 604         ++(fw_rsrc->refcnt);
 605
 606         return 0;
 607 }
 608
 609 static void
 610 sfc_mae_encap_header_disable(struct sfc_adapter *sa,
 611                              struct sfc_mae_encap_header *encap_header)
 612 {
 613         struct sfc_mae_fw_rsrc *fw_rsrc;
 614         int rc;
 615
 616         if (encap_header == NULL)
 617                 return;
 618
 619         SFC_ASSERT(sfc_adapter_is_locked(sa));
 620
 621         fw_rsrc = &encap_header->fw_rsrc;
 622
 623         if (fw_rsrc->eh_id.id == EFX_MAE_RSRC_ID_INVALID ||
 624             fw_rsrc->refcnt == 0) {
 625                 sfc_err(sa, "failed to disable encap_header=%p: already disabled; EH_ID=0x%08x, refcnt=%u",
 626                         encap_header, fw_rsrc->eh_id.id, fw_rsrc->refcnt);
 627                 return;
 628         }
 629
 630         if (fw_rsrc->refcnt == 1) {
 631                 rc = efx_mae_encap_header_free(sa->nic, &fw_rsrc->eh_id);
 632                 if (rc == 0) {
 633                         sfc_dbg(sa, "disabled encap_header=%p with EH_ID=0x%08x",
 634                                 encap_header, fw_rsrc->eh_id.id);
 635                 } else {
 636                         sfc_err(sa, "failed to disable encap_header=%p with EH_ID=0x%08x: %s",
 637                                 encap_header, fw_rsrc->eh_id.id, strerror(rc));
 638                 }
 639                 fw_rsrc->eh_id.id = EFX_MAE_RSRC_ID_INVALID;
 640         }
 641
 642         --(fw_rsrc->refcnt);
 643 }
 644
 645 static int
 646 sfc_mae_counters_enable(struct sfc_adapter *sa,
 647                         struct sfc_mae_counter_id *counters,
 648                         unsigned int n_counters,
 649                         efx_mae_actions_t *action_set_spec)
 650 {
 651         int rc;
 652
 653         sfc_log_init(sa, "entry");
 654
 655         if (n_counters == 0) {
 656                 sfc_log_init(sa, "no counters - skip");
 657                 return 0;
 658         }
 659
 660         SFC_ASSERT(sfc_adapter_is_locked(sa));
 661         SFC_ASSERT(n_counters == 1);
 662
 663         rc = sfc_mae_counter_enable(sa, &counters[0]);
 664         if (rc != 0) {
 665                 sfc_err(sa, "failed to enable MAE counter %u: %s",
 666                         counters[0].mae_id.id, rte_strerror(rc));
 667                 goto fail_counter_add;
 668         }
 669
 670         rc = efx_mae_action_set_fill_in_counter_id(action_set_spec,
 671                                                    &counters[0].mae_id);
 672         if (rc != 0) {
 673                 sfc_err(sa, "failed to fill in MAE counter %u in action set: %s",
 674                         counters[0].mae_id.id, rte_strerror(rc));
 675                 goto fail_fill_in_id;
 676         }
 677
 678         return 0;
 679
 680 fail_fill_in_id:
 681         (void)sfc_mae_counter_disable(sa, &counters[0]);
 682
 683 fail_counter_add:
 684         sfc_log_init(sa, "failed: %s", rte_strerror(rc));
 685         return rc;
 686 }
 687
 688 static int
 689 sfc_mae_counters_disable(struct sfc_adapter *sa,
 690                          struct sfc_mae_counter_id *counters,
 691                          unsigned int n_counters)
 692 {
 693         if (n_counters == 0)
 694                 return 0;
 695
 696         SFC_ASSERT(sfc_adapter_is_locked(sa));
 697         SFC_ASSERT(n_counters == 1);
 698
 699         if (counters[0].mae_id.id == EFX_MAE_RSRC_ID_INVALID) {
 700                 sfc_err(sa, "failed to disable: already disabled");
 701                 return EALREADY;
 702         }
 703
 704         return sfc_mae_counter_disable(sa, &counters[0]);
 705 }
 706
 707 static struct sfc_mae_action_set *
 708 sfc_mae_action_set_attach(struct sfc_adapter *sa,
 709                           const struct sfc_mae_encap_header *encap_header,
 710                           unsigned int n_count,
 711                           const efx_mae_actions_t *spec)
 712 {
 713         struct sfc_mae_action_set *action_set;
 714         struct sfc_mae *mae = &sa->mae;
 715
 716         SFC_ASSERT(sfc_adapter_is_locked(sa));
 717
 718         TAILQ_FOREACH(action_set, &mae->action_sets, entries) {
 719                 /*
 720                  * Shared counters are not supported, hence action sets with
 721                  * COUNT are not attachable.
 722                  */
 723                 if (action_set->encap_header == encap_header &&
 724                     n_count == 0 &&
 725                     efx_mae_action_set_specs_equal(action_set->spec, spec)) {
 726                         sfc_dbg(sa, "attaching to action_set=%p", action_set);
 727                         ++(action_set->refcnt);
 728                         return action_set;
 729                 }
 730         }
 731
 732         return NULL;
 733 }
 734
 735 static int
 736 sfc_mae_action_set_add(struct sfc_adapter *sa,
 737                        const struct rte_flow_action actions[],
 738                        efx_mae_actions_t *spec,
 739                        struct sfc_mae_encap_header *encap_header,
 740                        uint64_t *ft_group_hit_counter,
 741                        struct sfc_flow_tunnel *ft,
 742                        unsigned int n_counters,
 743                        struct sfc_mae_action_set **action_setp)
 744 {
 745         struct sfc_mae_action_set *action_set;
 746         struct sfc_mae *mae = &sa->mae;
 747         unsigned int i;
 748
 749         SFC_ASSERT(sfc_adapter_is_locked(sa));
 750
 751         action_set = rte_zmalloc("sfc_mae_action_set", sizeof(*action_set), 0);
 752         if (action_set == NULL) {
 753                 sfc_err(sa, "failed to alloc action set");
 754                 return ENOMEM;
 755         }
 756
 757         if (n_counters > 0) {
 758                 const struct rte_flow_action *action;
 759
 760                 action_set->counters = rte_malloc("sfc_mae_counter_ids",
 761                         sizeof(action_set->counters[0]) * n_counters, 0);
 762                 if (action_set->counters == NULL) {
 763                         rte_free(action_set);
 764                         sfc_err(sa, "failed to alloc counters");
 765                         return ENOMEM;
 766                 }
 767
 768                 for (i = 0; i < n_counters; ++i) {
 769                         action_set->counters[i].rte_id_valid = B_FALSE;
 770                         action_set->counters[i].mae_id.id =
 771                                 EFX_MAE_RSRC_ID_INVALID;
 772
 773                         action_set->counters[i].ft_group_hit_counter =
 774                                 ft_group_hit_counter;
 775                         action_set->counters[i].ft = ft;
 776                 }
 777
 778                 for (action = actions, i = 0;
 779                      action->type != RTE_FLOW_ACTION_TYPE_END && i < n_counters;
 780                      ++action) {
 781                         const struct rte_flow_action_count *conf;
 782
 783                         if (action->type != RTE_FLOW_ACTION_TYPE_COUNT)
 784                                 continue;
 785
 786                         conf = action->conf;
 787
 788                         action_set->counters[i].rte_id_valid = B_TRUE;
 789                         action_set->counters[i].rte_id = conf->id;
 790                         i++;
 791                 }
 792                 action_set->n_counters = n_counters;
 793         }
 794
 795         action_set->refcnt = 1;
 796         action_set->spec = spec;
 797         action_set->encap_header = encap_header;
 798
 799         action_set->fw_rsrc.aset_id.id = EFX_MAE_RSRC_ID_INVALID;
 800
 801         TAILQ_INSERT_TAIL(&mae->action_sets, action_set, entries);
 802
 803         *action_setp = action_set;
 804
 805         sfc_dbg(sa, "added action_set=%p", action_set);
 806
 807         return 0;
 808 }
 809
 810 static void
 811 sfc_mae_action_set_del(struct sfc_adapter *sa,
 812                        struct sfc_mae_action_set *action_set)
 813 {
 814         struct sfc_mae *mae = &sa->mae;
 815
 816         SFC_ASSERT(sfc_adapter_is_locked(sa));
 817         SFC_ASSERT(action_set->refcnt != 0);
 818
 819         --(action_set->refcnt);
 820
 821         if (action_set->refcnt != 0)
 822                 return;
 823
 824         if (action_set->fw_rsrc.aset_id.id != EFX_MAE_RSRC_ID_INVALID ||
 825             action_set->fw_rsrc.refcnt != 0) {
 826                 sfc_err(sa, "deleting action_set=%p abandons its FW resource: AS_ID=0x%08x, refcnt=%u",
 827                         action_set, action_set->fw_rsrc.aset_id.id,
 828                         action_set->fw_rsrc.refcnt);
 829         }
 830
 831         efx_mae_action_set_spec_fini(sa->nic, action_set->spec);
 832         sfc_mae_encap_header_del(sa, action_set->encap_header);
 833         if (action_set->n_counters > 0) {
 834                 SFC_ASSERT(action_set->n_counters == 1);
 835                 SFC_ASSERT(action_set->counters[0].mae_id.id ==
 836                            EFX_MAE_RSRC_ID_INVALID);
 837                 rte_free(action_set->counters);
 838         }
 839         TAILQ_REMOVE(&mae->action_sets, action_set, entries);
 840         rte_free(action_set);
 841
 842         sfc_dbg(sa, "deleted action_set=%p", action_set);
 843 }
 844
 845 static int
 846 sfc_mae_action_set_enable(struct sfc_adapter *sa,
 847                           struct sfc_mae_action_set *action_set)
 848 {
 849         struct sfc_mae_encap_header *encap_header = action_set->encap_header;
 850         struct sfc_mae_counter_id *counters = action_set->counters;
 851         struct sfc_mae_fw_rsrc *fw_rsrc = &action_set->fw_rsrc;
 852         int rc;
 853
 854         SFC_ASSERT(sfc_adapter_is_locked(sa));
 855
 856         if (fw_rsrc->refcnt == 0) {
 857                 SFC_ASSERT(fw_rsrc->aset_id.id == EFX_MAE_RSRC_ID_INVALID);
 858                 SFC_ASSERT(action_set->spec != NULL);
 859
 860                 rc = sfc_mae_encap_header_enable(sa, encap_header,
 861                                                  action_set->spec);
 862                 if (rc != 0)
 863                         return rc;
 864
 865                 rc = sfc_mae_counters_enable(sa, counters,
 866                                              action_set->n_counters,
 867                                              action_set->spec);
 868                 if (rc != 0) {
 869                         sfc_err(sa, "failed to enable %u MAE counters: %s",
 870                                 action_set->n_counters, rte_strerror(rc));
 871
 872                         sfc_mae_encap_header_disable(sa, encap_header);
 873                         return rc;
 874                 }
 875
 876                 rc = efx_mae_action_set_alloc(sa->nic, action_set->spec,
 877                                               &fw_rsrc->aset_id);
 878                 if (rc != 0) {
 879                         sfc_err(sa, "failed to enable action_set=%p: %s",
 880                                 action_set, strerror(rc));
 881
 882                         (void)sfc_mae_counters_disable(sa, counters,
 883                                                        action_set->n_counters);
 884                         sfc_mae_encap_header_disable(sa, encap_header);
 885                         return rc;
 886                 }
 887
 888                 sfc_dbg(sa, "enabled action_set=%p: AS_ID=0x%08x",
 889                         action_set, fw_rsrc->aset_id.id);
 890         }
 891
 892         ++(fw_rsrc->refcnt);
 893
 894         return 0;
 895 }
 896
 897 static void
 898 sfc_mae_action_set_disable(struct sfc_adapter *sa,
 899                            struct sfc_mae_action_set *action_set)
 900 {
 901         struct sfc_mae_fw_rsrc *fw_rsrc = &action_set->fw_rsrc;
 902         int rc;
 903
 904         SFC_ASSERT(sfc_adapter_is_locked(sa));
 905
 906         if (fw_rsrc->aset_id.id == EFX_MAE_RSRC_ID_INVALID ||
 907             fw_rsrc->refcnt == 0) {
 908                 sfc_err(sa, "failed to disable action_set=%p: already disabled; AS_ID=0x%08x, refcnt=%u",
 909                         action_set, fw_rsrc->aset_id.id, fw_rsrc->refcnt);
 910                 return;
 911         }
 912
 913         if (fw_rsrc->refcnt == 1) {
 914                 rc = efx_mae_action_set_free(sa->nic, &fw_rsrc->aset_id);
 915                 if (rc == 0) {
 916                         sfc_dbg(sa, "disabled action_set=%p with AS_ID=0x%08x",
 917                                 action_set, fw_rsrc->aset_id.id);
 918                 } else {
 919                         sfc_err(sa, "failed to disable action_set=%p with AS_ID=0x%08x: %s",
 920                                 action_set, fw_rsrc->aset_id.id, strerror(rc));
 921                 }
 922                 fw_rsrc->aset_id.id = EFX_MAE_RSRC_ID_INVALID;
 923
 924                 rc = sfc_mae_counters_disable(sa, action_set->counters,
 925                                               action_set->n_counters);
 926                 if (rc != 0) {
 927                         sfc_err(sa, "failed to disable %u MAE counters: %s",
 928                                 action_set->n_counters, rte_strerror(rc));
 929                 }
 930
 931                 sfc_mae_encap_header_disable(sa, action_set->encap_header);
 932         }
 933
 934         --(fw_rsrc->refcnt);
 935 }
 936
 937 void
 938 sfc_mae_flow_cleanup(struct sfc_adapter *sa,
 939                      struct rte_flow *flow)
 940 {
 941         struct sfc_flow_spec *spec;
 942         struct sfc_flow_spec_mae *spec_mae;
 943
 944         if (flow == NULL)
 945                 return;
 946
 947         spec = &flow->spec;
 948
 949         if (spec == NULL)
 950                 return;
 951
 952         spec_mae = &spec->mae;
 953
 954         if (spec_mae->ft != NULL) {
 955                 if (spec_mae->ft_rule_type == SFC_FT_RULE_JUMP)
 956                         spec_mae->ft->jump_rule_is_set = B_FALSE;
 957
 958                 SFC_ASSERT(spec_mae->ft->refcnt != 0);
 959                 --(spec_mae->ft->refcnt);
 960         }
 961
 962         SFC_ASSERT(spec_mae->rule_id.id == EFX_MAE_RSRC_ID_INVALID);
 963
 964         if (spec_mae->outer_rule != NULL)
 965                 sfc_mae_outer_rule_del(sa, spec_mae->outer_rule);
 966
 967         if (spec_mae->action_set != NULL)
 968                 sfc_mae_action_set_del(sa, spec_mae->action_set);
 969
 970         if (spec_mae->match_spec != NULL)
 971                 efx_mae_match_spec_fini(sa->nic, spec_mae->match_spec);
 972 }
 973
 974 static int
 975 sfc_mae_set_ethertypes(struct sfc_mae_parse_ctx *ctx)
 976 {
 977         struct sfc_mae_pattern_data *pdata = &ctx->pattern_data;
 978         const efx_mae_field_id_t *fremap = ctx->field_ids_remap;
 979         const efx_mae_field_id_t field_ids[] = {
 980                 EFX_MAE_FIELD_VLAN0_PROTO_BE,
 981                 EFX_MAE_FIELD_VLAN1_PROTO_BE,
 982         };
 983         const struct sfc_mae_ethertype *et;
 984         unsigned int i;
 985         int rc;
 986
 987         /*
 988          * In accordance with RTE flow API convention, the innermost L2
 989          * item's "type" ("inner_type") is a L3 EtherType. If there is
 990          * no L3 item, it's 0x0000/0x0000.
 991          */
 992         et = &pdata->ethertypes[pdata->nb_vlan_tags];
 993         rc = efx_mae_match_spec_field_set(ctx->match_spec,
 994                                           fremap[EFX_MAE_FIELD_ETHER_TYPE_BE],
 995                                           sizeof(et->value),
 996                                           (const uint8_t *)&et->value,
 997                                           sizeof(et->mask),
 998                                           (const uint8_t *)&et->mask);
 999         if (rc != 0)
1000                 return rc;
1001
1002         /*
1003          * sfc_mae_rule_parse_item_vlan() has already made sure
1004          * that pdata->nb_vlan_tags does not exceed this figure.
1005          */
1006         RTE_BUILD_BUG_ON(SFC_MAE_MATCH_VLAN_MAX_NTAGS != 2);
1007
1008         for (i = 0; i < pdata->nb_vlan_tags; ++i) {
1009                 et = &pdata->ethertypes[i];
1010
1011                 rc = efx_mae_match_spec_field_set(ctx->match_spec,
1012                                                   fremap[field_ids[i]],
1013                                                   sizeof(et->value),
1014                                                   (const uint8_t *)&et->value,
1015                                                   sizeof(et->mask),
1016                                                   (const uint8_t *)&et->mask);
1017                 if (rc != 0)
1018                         return rc;
1019         }
1020
1021         return 0;
1022 }
1023
1024 static int
1025 sfc_mae_rule_process_pattern_data(struct sfc_mae_parse_ctx *ctx,
1026                                   struct rte_flow_error *error)
1027 {
1028         const efx_mae_field_id_t *fremap = ctx->field_ids_remap;
1029         struct sfc_mae_pattern_data *pdata = &ctx->pattern_data;
1030         struct sfc_mae_ethertype *ethertypes = pdata->ethertypes;
1031         const rte_be16_t supported_tpids[] = {
1032                 /* VLAN standard TPID (always the first element) */
1033                 RTE_BE16(RTE_ETHER_TYPE_VLAN),
1034
1035                 /* Double-tagging TPIDs */
1036                 RTE_BE16(RTE_ETHER_TYPE_QINQ),
1037                 RTE_BE16(RTE_ETHER_TYPE_QINQ1),
1038                 RTE_BE16(RTE_ETHER_TYPE_QINQ2),
1039                 RTE_BE16(RTE_ETHER_TYPE_QINQ3),
1040         };
1041         bool enforce_tag_presence[SFC_MAE_MATCH_VLAN_MAX_NTAGS] = {0};
1042         unsigned int nb_supported_tpids = RTE_DIM(supported_tpids);
1043         unsigned int ethertype_idx;
1044         const uint8_t *valuep;
1045         const uint8_t *maskp;
1046         int rc;
1047
1048         if (pdata->innermost_ethertype_restriction.mask != 0 &&
1049             pdata->nb_vlan_tags < SFC_MAE_MATCH_VLAN_MAX_NTAGS) {
1050                 /*
1051                  * If a single item VLAN is followed by a L3 item, value
1052                  * of "type" in item ETH can't be a double-tagging TPID.
1053                  */
1054                 nb_supported_tpids = 1;
1055         }
1056
1057         /*
1058          * sfc_mae_rule_parse_item_vlan() has already made sure
1059          * that pdata->nb_vlan_tags does not exceed this figure.
1060          */
1061         RTE_BUILD_BUG_ON(SFC_MAE_MATCH_VLAN_MAX_NTAGS != 2);
1062
1063         for (ethertype_idx = 0;
1064              ethertype_idx < pdata->nb_vlan_tags; ++ethertype_idx) {
1065                 rte_be16_t tpid_v = ethertypes[ethertype_idx].value;
1066                 rte_be16_t tpid_m = ethertypes[ethertype_idx].mask;
1067                 unsigned int tpid_idx;
1068
1069                 /*
1070                  * This loop can have only two iterations. On the second one,
1071                  * drop outer tag presence enforcement bit because the inner
1072                  * tag presence automatically assumes that for the outer tag.
1073                  */
1074                 enforce_tag_presence[0] = B_FALSE;
1075
1076                 if (tpid_m == RTE_BE16(0)) {
1077                         if (pdata->tci_masks[ethertype_idx] == RTE_BE16(0))
1078                                 enforce_tag_presence[ethertype_idx] = B_TRUE;
1079
1080                         /* No match on this field, and no value check. */
1081                         nb_supported_tpids = 1;
1082                         continue;
1083                 }
1084
1085                 /* Exact match is supported only. */
1086                 if (tpid_m != RTE_BE16(0xffff)) {
1087                         sfc_err(ctx->sa, "TPID mask must be 0x0 or 0xffff; got 0x%04x",
1088                                 rte_be_to_cpu_16(tpid_m));
1089                         rc = EINVAL;
1090                         goto fail;
1091                 }
1092
1093                 for (tpid_idx = pdata->nb_vlan_tags - ethertype_idx - 1;
1094                      tpid_idx < nb_supported_tpids; ++tpid_idx) {
1095                         if (tpid_v == supported_tpids[tpid_idx])
1096                                 break;
1097                 }
1098
1099                 if (tpid_idx == nb_supported_tpids) {
1100                         sfc_err(ctx->sa, "TPID 0x%04x is unsupported",
1101                                 rte_be_to_cpu_16(tpid_v));
1102                         rc = EINVAL;
1103                         goto fail;
1104                 }
1105
1106                 nb_supported_tpids = 1;
1107         }
1108
1109         if (pdata->innermost_ethertype_restriction.mask == RTE_BE16(0xffff)) {
1110                 struct sfc_mae_ethertype *et = &ethertypes[ethertype_idx];
1111                 rte_be16_t enforced_et;
1112
1113                 enforced_et = pdata->innermost_ethertype_restriction.value;
1114
1115                 if (et->mask == 0) {
1116                         et->mask = RTE_BE16(0xffff);
1117                         et->value = enforced_et;
1118                 } else if (et->mask != RTE_BE16(0xffff) ||
1119                            et->value != enforced_et) {
1120                         sfc_err(ctx->sa, "L3 EtherType must be 0x0/0x0 or 0x%04x/0xffff; got 0x%04x/0x%04x",
1121                                 rte_be_to_cpu_16(enforced_et),
1122                                 rte_be_to_cpu_16(et->value),
1123                                 rte_be_to_cpu_16(et->mask));
1124                         rc = EINVAL;
1125                         goto fail;
1126                 }
1127         }
1128
1129         /*
1130          * Now, when the number of VLAN tags is known, set fields
1131          * ETHER_TYPE, VLAN0_PROTO and VLAN1_PROTO so that the first
1132          * one is either a valid L3 EtherType (or 0x0000/0x0000),
1133          * and the last two are valid TPIDs (or 0x0000/0x0000).
1134          */
1135         rc = sfc_mae_set_ethertypes(ctx);
1136         if (rc != 0)
1137                 goto fail;
1138
1139         if (pdata->l3_next_proto_restriction_mask == 0xff) {
1140                 if (pdata->l3_next_proto_mask == 0) {
1141                         pdata->l3_next_proto_mask = 0xff;
1142                         pdata->l3_next_proto_value =
1143                                 pdata->l3_next_proto_restriction_value;
1144                 } else if (pdata->l3_next_proto_mask != 0xff ||
1145                            pdata->l3_next_proto_value !=
1146                            pdata->l3_next_proto_restriction_value) {
1147                         sfc_err(ctx->sa, "L3 next protocol must be 0x0/0x0 or 0x%02x/0xff; got 0x%02x/0x%02x",
1148                                 pdata->l3_next_proto_restriction_value,
1149                                 pdata->l3_next_proto_value,
1150                                 pdata->l3_next_proto_mask);
1151                         rc = EINVAL;
1152                         goto fail;
1153                 }
1154         }
1155
1156         if (enforce_tag_presence[0] || pdata->has_ovlan_mask) {
1157                 rc = efx_mae_match_spec_bit_set(ctx->match_spec,
1158                                                 fremap[EFX_MAE_FIELD_HAS_OVLAN],
1159                                                 enforce_tag_presence[0] ||
1160                                                 pdata->has_ovlan_value);
1161                 if (rc != 0)
1162                         goto fail;
1163         }
1164
1165         if (enforce_tag_presence[1] || pdata->has_ivlan_mask) {
1166                 rc = efx_mae_match_spec_bit_set(ctx->match_spec,
1167                                                 fremap[EFX_MAE_FIELD_HAS_IVLAN],
1168                                                 enforce_tag_presence[1] ||
1169                                                 pdata->has_ivlan_value);
1170                 if (rc != 0)
1171                         goto fail;
1172         }
1173
1174         valuep = (const uint8_t *)&pdata->l3_next_proto_value;
1175         maskp = (const uint8_t *)&pdata->l3_next_proto_mask;
1176         rc = efx_mae_match_spec_field_set(ctx->match_spec,
1177                                           fremap[EFX_MAE_FIELD_IP_PROTO],
1178                                           sizeof(pdata->l3_next_proto_value),
1179                                           valuep,
1180                                           sizeof(pdata->l3_next_proto_mask),
1181                                           maskp);
1182         if (rc != 0)
1183                 goto fail;
1184
1185         return 0;
1186
1187 fail:
1188         return rte_flow_error_set(error, rc, RTE_FLOW_ERROR_TYPE_ITEM, NULL,
1189                                   "Failed to process pattern data");
1190 }
1191
1192 static int
1193 sfc_mae_rule_parse_item_mark(const struct rte_flow_item *item,
1194                              struct sfc_flow_parse_ctx *ctx,
1195                              struct rte_flow_error *error)
1196 {
1197         const struct rte_flow_item_mark *spec = item->spec;
1198         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
1199
1200         if (spec == NULL) {
1201                 return rte_flow_error_set(error, EINVAL,
1202                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1203                                 "NULL spec in item MARK");
1204         }
1205
1206         /*
1207          * This item is used in tunnel offload support only.
1208          * It must go before any network header items. This
1209          * way, sfc_mae_rule_preparse_item_mark() must have
1210          * already parsed it. Only one item MARK is allowed.
1211          */
1212         if (ctx_mae->ft_rule_type != SFC_FT_RULE_GROUP ||
1213             spec->id != (uint32_t)SFC_FT_ID_TO_MARK(ctx_mae->ft->id)) {
1214                 return rte_flow_error_set(error, EINVAL,
1215                                           RTE_FLOW_ERROR_TYPE_ITEM,
1216                                           item, "invalid item MARK");
1217         }
1218
1219         return 0;
1220 }
1221
1222 static int
1223 sfc_mae_rule_parse_item_port_id(const struct rte_flow_item *item,
1224                                 struct sfc_flow_parse_ctx *ctx,
1225                                 struct rte_flow_error *error)
1226 {
1227         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
1228         const struct rte_flow_item_port_id supp_mask = {
1229                 .id = 0xffffffff,
1230         };
1231         const void *def_mask = &rte_flow_item_port_id_mask;
1232         const struct rte_flow_item_port_id *spec = NULL;
1233         const struct rte_flow_item_port_id *mask = NULL;
1234         efx_mport_sel_t mport_sel;
1235         int rc;
1236
1237         if (ctx_mae->match_mport_set) {
1238                 return rte_flow_error_set(error, ENOTSUP,
1239                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1240                                 "Can't handle multiple traffic source items");
1241         }
1242
1243         rc = sfc_flow_parse_init(item,
1244                                  (const void **)&spec, (const void **)&mask,
1245                                  (const void *)&supp_mask, def_mask,
1246                                  sizeof(struct rte_flow_item_port_id), error);
1247         if (rc != 0)
1248                 return rc;
1249
1250         if (mask->id != supp_mask.id) {
1251                 return rte_flow_error_set(error, EINVAL,
1252                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1253                                 "Bad mask in the PORT_ID pattern item");
1254         }
1255
1256         /* If "spec" is not set, could be any port ID */
1257         if (spec == NULL)
1258                 return 0;
1259
1260         if (spec->id > UINT16_MAX) {
1261                 return rte_flow_error_set(error, EOVERFLOW,
1262                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
1263                                           "The port ID is too large");
1264         }
1265
1266         rc = sfc_mae_switch_port_by_ethdev(ctx_mae->sa->mae.switch_domain_id,
1267                                            spec->id, &mport_sel);
1268         if (rc != 0) {
1269                 return rte_flow_error_set(error, rc,
1270                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1271                                 "Can't find RTE ethdev by the port ID");
1272         }
1273
1274         rc = efx_mae_match_spec_mport_set(ctx_mae->match_spec,
1275                                           &mport_sel, NULL);
1276         if (rc != 0) {
1277                 return rte_flow_error_set(error, rc,
1278                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1279                                 "Failed to set MPORT for the port ID");
1280         }
1281
1282         ctx_mae->match_mport_set = B_TRUE;
1283
1284         return 0;
1285 }
1286
1287 static int
1288 sfc_mae_rule_parse_item_phy_port(const struct rte_flow_item *item,
1289                                  struct sfc_flow_parse_ctx *ctx,
1290                                  struct rte_flow_error *error)
1291 {
1292         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
1293         const struct rte_flow_item_phy_port supp_mask = {
1294                 .index = 0xffffffff,
1295         };
1296         const void *def_mask = &rte_flow_item_phy_port_mask;
1297         const struct rte_flow_item_phy_port *spec = NULL;
1298         const struct rte_flow_item_phy_port *mask = NULL;
1299         efx_mport_sel_t mport_v;
1300         int rc;
1301
1302         if (ctx_mae->match_mport_set) {
1303                 return rte_flow_error_set(error, ENOTSUP,
1304                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1305                                 "Can't handle multiple traffic source items");
1306         }
1307
1308         rc = sfc_flow_parse_init(item,
1309                                  (const void **)&spec, (const void **)&mask,
1310                                  (const void *)&supp_mask, def_mask,
1311                                  sizeof(struct rte_flow_item_phy_port), error);
1312         if (rc != 0)
1313                 return rc;
1314
1315         if (mask->index != supp_mask.index) {
1316                 return rte_flow_error_set(error, EINVAL,
1317                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1318                                 "Bad mask in the PHY_PORT pattern item");
1319         }
1320
1321         /* If "spec" is not set, could be any physical port */
1322         if (spec == NULL)
1323                 return 0;
1324
1325         rc = efx_mae_mport_by_phy_port(spec->index, &mport_v);
1326         if (rc != 0) {
1327                 return rte_flow_error_set(error, rc,
1328                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1329                                 "Failed to convert the PHY_PORT index");
1330         }
1331
1332         rc = efx_mae_match_spec_mport_set(ctx_mae->match_spec, &mport_v, NULL);
1333         if (rc != 0) {
1334                 return rte_flow_error_set(error, rc,
1335                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1336                                 "Failed to set MPORT for the PHY_PORT");
1337         }
1338
1339         ctx_mae->match_mport_set = B_TRUE;
1340
1341         return 0;
1342 }
1343
1344 static int
1345 sfc_mae_rule_parse_item_pf(const struct rte_flow_item *item,
1346                            struct sfc_flow_parse_ctx *ctx,
1347                            struct rte_flow_error *error)
1348 {
1349         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
1350         const efx_nic_cfg_t *encp = efx_nic_cfg_get(ctx_mae->sa->nic);
1351         efx_mport_sel_t mport_v;
1352         int rc;
1353
1354         if (ctx_mae->match_mport_set) {
1355                 return rte_flow_error_set(error, ENOTSUP,
1356                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1357                                 "Can't handle multiple traffic source items");
1358         }
1359
1360         rc = efx_mae_mport_by_pcie_function(encp->enc_pf, EFX_PCI_VF_INVALID,
1361                                             &mport_v);
1362         if (rc != 0) {
1363                 return rte_flow_error_set(error, rc,
1364                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1365                                 "Failed to convert the PF ID");
1366         }
1367
1368         rc = efx_mae_match_spec_mport_set(ctx_mae->match_spec, &mport_v, NULL);
1369         if (rc != 0) {
1370                 return rte_flow_error_set(error, rc,
1371                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1372                                 "Failed to set MPORT for the PF");
1373         }
1374
1375         ctx_mae->match_mport_set = B_TRUE;
1376
1377         return 0;
1378 }
1379
1380 static int
1381 sfc_mae_rule_parse_item_vf(const struct rte_flow_item *item,
1382                            struct sfc_flow_parse_ctx *ctx,
1383                            struct rte_flow_error *error)
1384 {
1385         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
1386         const efx_nic_cfg_t *encp = efx_nic_cfg_get(ctx_mae->sa->nic);
1387         const struct rte_flow_item_vf supp_mask = {
1388                 .id = 0xffffffff,
1389         };
1390         const void *def_mask = &rte_flow_item_vf_mask;
1391         const struct rte_flow_item_vf *spec = NULL;
1392         const struct rte_flow_item_vf *mask = NULL;
1393         efx_mport_sel_t mport_v;
1394         int rc;
1395
1396         if (ctx_mae->match_mport_set) {
1397                 return rte_flow_error_set(error, ENOTSUP,
1398                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1399                                 "Can't handle multiple traffic source items");
1400         }
1401
1402         rc = sfc_flow_parse_init(item,
1403                                  (const void **)&spec, (const void **)&mask,
1404                                  (const void *)&supp_mask, def_mask,
1405                                  sizeof(struct rte_flow_item_vf), error);
1406         if (rc != 0)
1407                 return rc;
1408
1409         if (mask->id != supp_mask.id) {
1410                 return rte_flow_error_set(error, EINVAL,
1411                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1412                                 "Bad mask in the VF pattern item");
1413         }
1414
1415         /*
1416          * If "spec" is not set, the item requests any VF related to the
1417          * PF of the current DPDK port (but not the PF itself).
1418          * Reject this match criterion as unsupported.
1419          */
1420         if (spec == NULL) {
1421                 return rte_flow_error_set(error, EINVAL,
1422                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1423                                 "Bad spec in the VF pattern item");
1424         }
1425
1426         rc = efx_mae_mport_by_pcie_function(encp->enc_pf, spec->id, &mport_v);
1427         if (rc != 0) {
1428                 return rte_flow_error_set(error, rc,
1429                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1430                                 "Failed to convert the PF + VF IDs");
1431         }
1432
1433         rc = efx_mae_match_spec_mport_set(ctx_mae->match_spec, &mport_v, NULL);
1434         if (rc != 0) {
1435                 return rte_flow_error_set(error, rc,
1436                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1437                                 "Failed to set MPORT for the PF + VF");
1438         }
1439
1440         ctx_mae->match_mport_set = B_TRUE;
1441
1442         return 0;
1443 }
1444
1445 /*
1446  * Having this field ID in a field locator means that this
1447  * locator cannot be used to actually set the field at the
1448  * time when the corresponding item gets encountered. Such
1449  * fields get stashed in the parsing context instead. This
1450  * is required to resolve dependencies between the stashed
1451  * fields. See sfc_mae_rule_process_pattern_data().
1452  */
1453 #define SFC_MAE_FIELD_HANDLING_DEFERRED EFX_MAE_FIELD_NIDS
1454
1455 struct sfc_mae_field_locator {
1456         efx_mae_field_id_t              field_id;
1457         size_t                          size;
1458         /* Field offset in the corresponding rte_flow_item_ struct */
1459         size_t                          ofst;
1460 };
1461
1462 static void
1463 sfc_mae_item_build_supp_mask(const struct sfc_mae_field_locator *field_locators,
1464                              unsigned int nb_field_locators, void *mask_ptr,
1465                              size_t mask_size)
1466 {
1467         unsigned int i;
1468
1469         memset(mask_ptr, 0, mask_size);
1470
1471         for (i = 0; i < nb_field_locators; ++i) {
1472                 const struct sfc_mae_field_locator *fl = &field_locators[i];
1473
1474                 SFC_ASSERT(fl->ofst + fl->size <= mask_size);
1475                 memset(RTE_PTR_ADD(mask_ptr, fl->ofst), 0xff, fl->size);
1476         }
1477 }
1478
1479 static int
1480 sfc_mae_parse_item(const struct sfc_mae_field_locator *field_locators,
1481                    unsigned int nb_field_locators, const uint8_t *spec,
1482                    const uint8_t *mask, struct sfc_mae_parse_ctx *ctx,
1483                    struct rte_flow_error *error)
1484 {
1485         const efx_mae_field_id_t *fremap = ctx->field_ids_remap;
1486         unsigned int i;
1487         int rc = 0;
1488
1489         for (i = 0; i < nb_field_locators; ++i) {
1490                 const struct sfc_mae_field_locator *fl = &field_locators[i];
1491
1492                 if (fl->field_id == SFC_MAE_FIELD_HANDLING_DEFERRED)
1493                         continue;
1494
1495                 rc = efx_mae_match_spec_field_set(ctx->match_spec,
1496                                                   fremap[fl->field_id],
1497                                                   fl->size, spec + fl->ofst,
1498                                                   fl->size, mask + fl->ofst);
1499                 if (rc != 0)
1500                         break;
1501         }
1502
1503         if (rc != 0) {
1504                 rc = rte_flow_error_set(error, rc, RTE_FLOW_ERROR_TYPE_ITEM,
1505                                 NULL, "Failed to process item fields");
1506         }
1507
1508         return rc;
1509 }
1510
1511 static const struct sfc_mae_field_locator flocs_eth[] = {
1512         {
1513                 /*
1514                  * This locator is used only for building supported fields mask.
1515                  * The field is handled by sfc_mae_rule_process_pattern_data().
1516                  */
1517                 SFC_MAE_FIELD_HANDLING_DEFERRED,
1518                 RTE_SIZEOF_FIELD(struct rte_flow_item_eth, type),
1519                 offsetof(struct rte_flow_item_eth, type),
1520         },
1521         {
1522                 EFX_MAE_FIELD_ETH_DADDR_BE,
1523                 RTE_SIZEOF_FIELD(struct rte_flow_item_eth, dst),
1524                 offsetof(struct rte_flow_item_eth, dst),
1525         },
1526         {
1527                 EFX_MAE_FIELD_ETH_SADDR_BE,
1528                 RTE_SIZEOF_FIELD(struct rte_flow_item_eth, src),
1529                 offsetof(struct rte_flow_item_eth, src),
1530         },
1531 };
1532
1533 static int
1534 sfc_mae_rule_parse_item_eth(const struct rte_flow_item *item,
1535                             struct sfc_flow_parse_ctx *ctx,
1536                             struct rte_flow_error *error)
1537 {
1538         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
1539         struct rte_flow_item_eth override_mask;
1540         struct rte_flow_item_eth supp_mask;
1541         const uint8_t *spec = NULL;
1542         const uint8_t *mask = NULL;
1543         int rc;
1544
1545         sfc_mae_item_build_supp_mask(flocs_eth, RTE_DIM(flocs_eth),
1546                                      &supp_mask, sizeof(supp_mask));
1547         supp_mask.has_vlan = 1;
1548
1549         rc = sfc_flow_parse_init(item,
1550                                  (const void **)&spec, (const void **)&mask,
1551                                  (const void *)&supp_mask,
1552                                  &rte_flow_item_eth_mask,
1553                                  sizeof(struct rte_flow_item_eth), error);
1554         if (rc != 0)
1555                 return rc;
1556
1557         if (ctx_mae->ft_rule_type == SFC_FT_RULE_JUMP && mask != NULL) {
1558                 /*
1559                  * The HW/FW hasn't got support for match on MAC addresses in
1560                  * outer rules yet (this will change). Match on VLAN presence
1561                  * isn't supported either. Ignore these match criteria.
1562                  */
1563                 memcpy(&override_mask, mask, sizeof(override_mask));
1564                 memset(&override_mask.hdr.dst_addr, 0,
1565                        sizeof(override_mask.hdr.dst_addr));
1566                 memset(&override_mask.hdr.src_addr, 0,
1567                        sizeof(override_mask.hdr.src_addr));
1568                 override_mask.has_vlan = 0;
1569
1570                 mask = (const uint8_t *)&override_mask;
1571         }
1572
1573         if (spec != NULL) {
1574                 struct sfc_mae_pattern_data *pdata = &ctx_mae->pattern_data;
1575                 struct sfc_mae_ethertype *ethertypes = pdata->ethertypes;
1576                 const struct rte_flow_item_eth *item_spec;
1577                 const struct rte_flow_item_eth *item_mask;
1578
1579                 item_spec = (const struct rte_flow_item_eth *)spec;
1580                 item_mask = (const struct rte_flow_item_eth *)mask;
1581
1582                 /*
1583                  * Remember various match criteria in the parsing context.
1584                  * sfc_mae_rule_process_pattern_data() will consider them
1585                  * altogether when the rest of the items have been parsed.
1586                  */
1587                 ethertypes[0].value = item_spec->type;
1588                 ethertypes[0].mask = item_mask->type;
1589                 if (item_mask->has_vlan) {
1590                         pdata->has_ovlan_mask = B_TRUE;
1591                         if (item_spec->has_vlan)
1592                                 pdata->has_ovlan_value = B_TRUE;
1593                 }
1594         } else {
1595                 /*
1596                  * The specification is empty. The overall pattern
1597                  * validity will be enforced at the end of parsing.
1598                  * See sfc_mae_rule_process_pattern_data().
1599                  */
1600                 return 0;
1601         }
1602
1603         return sfc_mae_parse_item(flocs_eth, RTE_DIM(flocs_eth), spec, mask,
1604                                   ctx_mae, error);
1605 }
1606
1607 static const struct sfc_mae_field_locator flocs_vlan[] = {
1608         /* Outermost tag */
1609         {
1610                 EFX_MAE_FIELD_VLAN0_TCI_BE,
1611                 RTE_SIZEOF_FIELD(struct rte_flow_item_vlan, tci),
1612                 offsetof(struct rte_flow_item_vlan, tci),
1613         },
1614         {
1615                 /*
1616                  * This locator is used only for building supported fields mask.
1617                  * The field is handled by sfc_mae_rule_process_pattern_data().
1618                  */
1619                 SFC_MAE_FIELD_HANDLING_DEFERRED,
1620                 RTE_SIZEOF_FIELD(struct rte_flow_item_vlan, inner_type),
1621                 offsetof(struct rte_flow_item_vlan, inner_type),
1622         },
1623
1624         /* Innermost tag */
1625         {
1626                 EFX_MAE_FIELD_VLAN1_TCI_BE,
1627                 RTE_SIZEOF_FIELD(struct rte_flow_item_vlan, tci),
1628                 offsetof(struct rte_flow_item_vlan, tci),
1629         },
1630         {
1631                 /*
1632                  * This locator is used only for building supported fields mask.
1633                  * The field is handled by sfc_mae_rule_process_pattern_data().
1634                  */
1635                 SFC_MAE_FIELD_HANDLING_DEFERRED,
1636                 RTE_SIZEOF_FIELD(struct rte_flow_item_vlan, inner_type),
1637                 offsetof(struct rte_flow_item_vlan, inner_type),
1638         },
1639 };
1640
1641 static int
1642 sfc_mae_rule_parse_item_vlan(const struct rte_flow_item *item,
1643                              struct sfc_flow_parse_ctx *ctx,
1644                              struct rte_flow_error *error)
1645 {
1646         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
1647         struct sfc_mae_pattern_data *pdata = &ctx_mae->pattern_data;
1648         boolean_t *has_vlan_mp_by_nb_tags[SFC_MAE_MATCH_VLAN_MAX_NTAGS] = {
1649                 &pdata->has_ovlan_mask,
1650                 &pdata->has_ivlan_mask,
1651         };
1652         boolean_t *has_vlan_vp_by_nb_tags[SFC_MAE_MATCH_VLAN_MAX_NTAGS] = {
1653                 &pdata->has_ovlan_value,
1654                 &pdata->has_ivlan_value,
1655         };
1656         boolean_t *cur_tag_presence_bit_mp;
1657         boolean_t *cur_tag_presence_bit_vp;
1658         const struct sfc_mae_field_locator *flocs;
1659         struct rte_flow_item_vlan supp_mask;
1660         const uint8_t *spec = NULL;
1661         const uint8_t *mask = NULL;
1662         unsigned int nb_flocs;
1663         int rc;
1664
1665         RTE_BUILD_BUG_ON(SFC_MAE_MATCH_VLAN_MAX_NTAGS != 2);
1666
1667         if (pdata->nb_vlan_tags == SFC_MAE_MATCH_VLAN_MAX_NTAGS) {
1668                 return rte_flow_error_set(error, ENOTSUP,
1669                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1670                                 "Can't match that many VLAN tags");
1671         }
1672
1673         cur_tag_presence_bit_mp = has_vlan_mp_by_nb_tags[pdata->nb_vlan_tags];
1674         cur_tag_presence_bit_vp = has_vlan_vp_by_nb_tags[pdata->nb_vlan_tags];
1675
1676         if (*cur_tag_presence_bit_mp == B_TRUE &&
1677             *cur_tag_presence_bit_vp == B_FALSE) {
1678                 return rte_flow_error_set(error, EINVAL,
1679                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1680                                 "The previous item enforces no (more) VLAN, "
1681                                 "so the current item (VLAN) must not exist");
1682         }
1683
1684         nb_flocs = RTE_DIM(flocs_vlan) / SFC_MAE_MATCH_VLAN_MAX_NTAGS;
1685         flocs = flocs_vlan + pdata->nb_vlan_tags * nb_flocs;
1686
1687         sfc_mae_item_build_supp_mask(flocs, nb_flocs,
1688                                      &supp_mask, sizeof(supp_mask));
1689         /*
1690          * This only means that the field is supported by the driver and libefx.
1691          * Support on NIC level will be checked when all items have been parsed.
1692          */
1693         supp_mask.has_more_vlan = 1;
1694
1695         rc = sfc_flow_parse_init(item,
1696                                  (const void **)&spec, (const void **)&mask,
1697                                  (const void *)&supp_mask,
1698                                  &rte_flow_item_vlan_mask,
1699                                  sizeof(struct rte_flow_item_vlan), error);
1700         if (rc != 0)
1701                 return rc;
1702
1703         if (spec != NULL) {
1704                 struct sfc_mae_ethertype *et = pdata->ethertypes;
1705                 const struct rte_flow_item_vlan *item_spec;
1706                 const struct rte_flow_item_vlan *item_mask;
1707
1708                 item_spec = (const struct rte_flow_item_vlan *)spec;
1709                 item_mask = (const struct rte_flow_item_vlan *)mask;
1710
1711                 /*
1712                  * Remember various match criteria in the parsing context.
1713                  * sfc_mae_rule_process_pattern_data() will consider them
1714                  * altogether when the rest of the items have been parsed.
1715                  */
1716                 et[pdata->nb_vlan_tags + 1].value = item_spec->inner_type;
1717                 et[pdata->nb_vlan_tags + 1].mask = item_mask->inner_type;
1718                 pdata->tci_masks[pdata->nb_vlan_tags] = item_mask->tci;
1719                 if (item_mask->has_more_vlan) {
1720                         if (pdata->nb_vlan_tags ==
1721                             SFC_MAE_MATCH_VLAN_MAX_NTAGS) {
1722                                 return rte_flow_error_set(error, ENOTSUP,
1723                                         RTE_FLOW_ERROR_TYPE_ITEM, item,
1724                                         "Can't use 'has_more_vlan' in "
1725                                         "the second item VLAN");
1726                         }
1727                         pdata->has_ivlan_mask = B_TRUE;
1728                         if (item_spec->has_more_vlan)
1729                                 pdata->has_ivlan_value = B_TRUE;
1730                 }
1731
1732                 /* Convert TCI to MAE representation right now. */
1733                 rc = sfc_mae_parse_item(flocs, nb_flocs, spec, mask,
1734                                         ctx_mae, error);
1735                 if (rc != 0)
1736                         return rc;
1737         }
1738
1739         ++(pdata->nb_vlan_tags);
1740
1741         return 0;
1742 }
1743
1744 static const struct sfc_mae_field_locator flocs_ipv4[] = {
1745         {
1746                 EFX_MAE_FIELD_SRC_IP4_BE,
1747                 RTE_SIZEOF_FIELD(struct rte_flow_item_ipv4, hdr.src_addr),
1748                 offsetof(struct rte_flow_item_ipv4, hdr.src_addr),
1749         },
1750         {
1751                 EFX_MAE_FIELD_DST_IP4_BE,
1752                 RTE_SIZEOF_FIELD(struct rte_flow_item_ipv4, hdr.dst_addr),
1753                 offsetof(struct rte_flow_item_ipv4, hdr.dst_addr),
1754         },
1755         {
1756                 /*
1757                  * This locator is used only for building supported fields mask.
1758                  * The field is handled by sfc_mae_rule_process_pattern_data().
1759                  */
1760                 SFC_MAE_FIELD_HANDLING_DEFERRED,
1761                 RTE_SIZEOF_FIELD(struct rte_flow_item_ipv4, hdr.next_proto_id),
1762                 offsetof(struct rte_flow_item_ipv4, hdr.next_proto_id),
1763         },
1764         {
1765                 EFX_MAE_FIELD_IP_TOS,
1766                 RTE_SIZEOF_FIELD(struct rte_flow_item_ipv4,
1767                                  hdr.type_of_service),
1768                 offsetof(struct rte_flow_item_ipv4, hdr.type_of_service),
1769         },
1770         {
1771                 EFX_MAE_FIELD_IP_TTL,
1772                 RTE_SIZEOF_FIELD(struct rte_flow_item_ipv4, hdr.time_to_live),
1773                 offsetof(struct rte_flow_item_ipv4, hdr.time_to_live),
1774         },
1775 };
1776
1777 static int
1778 sfc_mae_rule_parse_item_ipv4(const struct rte_flow_item *item,
1779                              struct sfc_flow_parse_ctx *ctx,
1780                              struct rte_flow_error *error)
1781 {
1782         rte_be16_t ethertype_ipv4_be = RTE_BE16(RTE_ETHER_TYPE_IPV4);
1783         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
1784         struct sfc_mae_pattern_data *pdata = &ctx_mae->pattern_data;
1785         struct rte_flow_item_ipv4 supp_mask;
1786         const uint8_t *spec = NULL;
1787         const uint8_t *mask = NULL;
1788         int rc;
1789
1790         sfc_mae_item_build_supp_mask(flocs_ipv4, RTE_DIM(flocs_ipv4),
1791                                      &supp_mask, sizeof(supp_mask));
1792
1793         rc = sfc_flow_parse_init(item,
1794                                  (const void **)&spec, (const void **)&mask,
1795                                  (const void *)&supp_mask,
1796                                  &rte_flow_item_ipv4_mask,
1797                                  sizeof(struct rte_flow_item_ipv4), error);
1798         if (rc != 0)
1799                 return rc;
1800
1801         pdata->innermost_ethertype_restriction.value = ethertype_ipv4_be;
1802         pdata->innermost_ethertype_restriction.mask = RTE_BE16(0xffff);
1803
1804         if (spec != NULL) {
1805                 const struct rte_flow_item_ipv4 *item_spec;
1806                 const struct rte_flow_item_ipv4 *item_mask;
1807
1808                 item_spec = (const struct rte_flow_item_ipv4 *)spec;
1809                 item_mask = (const struct rte_flow_item_ipv4 *)mask;
1810
1811                 pdata->l3_next_proto_value = item_spec->hdr.next_proto_id;
1812                 pdata->l3_next_proto_mask = item_mask->hdr.next_proto_id;
1813         } else {
1814                 return 0;
1815         }
1816
1817         return sfc_mae_parse_item(flocs_ipv4, RTE_DIM(flocs_ipv4), spec, mask,
1818                                   ctx_mae, error);
1819 }
1820
1821 static const struct sfc_mae_field_locator flocs_ipv6[] = {
1822         {
1823                 EFX_MAE_FIELD_SRC_IP6_BE,
1824                 RTE_SIZEOF_FIELD(struct rte_flow_item_ipv6, hdr.src_addr),
1825                 offsetof(struct rte_flow_item_ipv6, hdr.src_addr),
1826         },
1827         {
1828                 EFX_MAE_FIELD_DST_IP6_BE,
1829                 RTE_SIZEOF_FIELD(struct rte_flow_item_ipv6, hdr.dst_addr),
1830                 offsetof(struct rte_flow_item_ipv6, hdr.dst_addr),
1831         },
1832         {
1833                 /*
1834                  * This locator is used only for building supported fields mask.
1835                  * The field is handled by sfc_mae_rule_process_pattern_data().
1836                  */
1837                 SFC_MAE_FIELD_HANDLING_DEFERRED,
1838                 RTE_SIZEOF_FIELD(struct rte_flow_item_ipv6, hdr.proto),
1839                 offsetof(struct rte_flow_item_ipv6, hdr.proto),
1840         },
1841         {
1842                 EFX_MAE_FIELD_IP_TTL,
1843                 RTE_SIZEOF_FIELD(struct rte_flow_item_ipv6, hdr.hop_limits),
1844                 offsetof(struct rte_flow_item_ipv6, hdr.hop_limits),
1845         },
1846 };
1847
1848 static int
1849 sfc_mae_rule_parse_item_ipv6(const struct rte_flow_item *item,
1850                              struct sfc_flow_parse_ctx *ctx,
1851                              struct rte_flow_error *error)
1852 {
1853         rte_be16_t ethertype_ipv6_be = RTE_BE16(RTE_ETHER_TYPE_IPV6);
1854         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
1855         const efx_mae_field_id_t *fremap = ctx_mae->field_ids_remap;
1856         struct sfc_mae_pattern_data *pdata = &ctx_mae->pattern_data;
1857         struct rte_flow_item_ipv6 supp_mask;
1858         const uint8_t *spec = NULL;
1859         const uint8_t *mask = NULL;
1860         rte_be32_t vtc_flow_be;
1861         uint32_t vtc_flow;
1862         uint8_t tc_value;
1863         uint8_t tc_mask;
1864         int rc;
1865
1866         sfc_mae_item_build_supp_mask(flocs_ipv6, RTE_DIM(flocs_ipv6),
1867                                      &supp_mask, sizeof(supp_mask));
1868
1869         vtc_flow_be = RTE_BE32(RTE_IPV6_HDR_TC_MASK);
1870         memcpy(&supp_mask, &vtc_flow_be, sizeof(vtc_flow_be));
1871
1872         rc = sfc_flow_parse_init(item,
1873                                  (const void **)&spec, (const void **)&mask,
1874                                  (const void *)&supp_mask,
1875                                  &rte_flow_item_ipv6_mask,
1876                                  sizeof(struct rte_flow_item_ipv6), error);
1877         if (rc != 0)
1878                 return rc;
1879
1880         pdata->innermost_ethertype_restriction.value = ethertype_ipv6_be;
1881         pdata->innermost_ethertype_restriction.mask = RTE_BE16(0xffff);
1882
1883         if (spec != NULL) {
1884                 const struct rte_flow_item_ipv6 *item_spec;
1885                 const struct rte_flow_item_ipv6 *item_mask;
1886
1887                 item_spec = (const struct rte_flow_item_ipv6 *)spec;
1888                 item_mask = (const struct rte_flow_item_ipv6 *)mask;
1889
1890                 pdata->l3_next_proto_value = item_spec->hdr.proto;
1891                 pdata->l3_next_proto_mask = item_mask->hdr.proto;
1892         } else {
1893                 return 0;
1894         }
1895
1896         rc = sfc_mae_parse_item(flocs_ipv6, RTE_DIM(flocs_ipv6), spec, mask,
1897                                 ctx_mae, error);
1898         if (rc != 0)
1899                 return rc;
1900
1901         memcpy(&vtc_flow_be, spec, sizeof(vtc_flow_be));
1902         vtc_flow = rte_be_to_cpu_32(vtc_flow_be);
1903         tc_value = (vtc_flow & RTE_IPV6_HDR_TC_MASK) >> RTE_IPV6_HDR_TC_SHIFT;
1904
1905         memcpy(&vtc_flow_be, mask, sizeof(vtc_flow_be));
1906         vtc_flow = rte_be_to_cpu_32(vtc_flow_be);
1907         tc_mask = (vtc_flow & RTE_IPV6_HDR_TC_MASK) >> RTE_IPV6_HDR_TC_SHIFT;
1908
1909         rc = efx_mae_match_spec_field_set(ctx_mae->match_spec,
1910                                           fremap[EFX_MAE_FIELD_IP_TOS],
1911                                           sizeof(tc_value), &tc_value,
1912                                           sizeof(tc_mask), &tc_mask);
1913         if (rc != 0) {
1914                 return rte_flow_error_set(error, rc, RTE_FLOW_ERROR_TYPE_ITEM,
1915                                 NULL, "Failed to process item fields");
1916         }
1917
1918         return 0;
1919 }
1920
1921 static const struct sfc_mae_field_locator flocs_tcp[] = {
1922         {
1923                 EFX_MAE_FIELD_L4_SPORT_BE,
1924                 RTE_SIZEOF_FIELD(struct rte_flow_item_tcp, hdr.src_port),
1925                 offsetof(struct rte_flow_item_tcp, hdr.src_port),
1926         },
1927         {
1928                 EFX_MAE_FIELD_L4_DPORT_BE,
1929                 RTE_SIZEOF_FIELD(struct rte_flow_item_tcp, hdr.dst_port),
1930                 offsetof(struct rte_flow_item_tcp, hdr.dst_port),
1931         },
1932         {
1933                 EFX_MAE_FIELD_TCP_FLAGS_BE,
1934                 /*
1935                  * The values have been picked intentionally since the
1936                  * target MAE field is oversize (16 bit). This mapping
1937                  * relies on the fact that the MAE field is big-endian.
1938                  */
1939                 RTE_SIZEOF_FIELD(struct rte_flow_item_tcp, hdr.data_off) +
1940                 RTE_SIZEOF_FIELD(struct rte_flow_item_tcp, hdr.tcp_flags),
1941                 offsetof(struct rte_flow_item_tcp, hdr.data_off),
1942         },
1943 };
1944
1945 static int
1946 sfc_mae_rule_parse_item_tcp(const struct rte_flow_item *item,
1947                             struct sfc_flow_parse_ctx *ctx,
1948                             struct rte_flow_error *error)
1949 {
1950         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
1951         struct sfc_mae_pattern_data *pdata = &ctx_mae->pattern_data;
1952         struct rte_flow_item_tcp supp_mask;
1953         const uint8_t *spec = NULL;
1954         const uint8_t *mask = NULL;
1955         int rc;
1956
1957         /*
1958          * When encountered among outermost items, item TCP is invalid.
1959          * Check which match specification is being constructed now.
1960          */
1961         if (ctx_mae->match_spec != ctx_mae->match_spec_action) {
1962                 return rte_flow_error_set(error, EINVAL,
1963                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
1964                                           "TCP in outer frame is invalid");
1965         }
1966
1967         sfc_mae_item_build_supp_mask(flocs_tcp, RTE_DIM(flocs_tcp),
1968                                      &supp_mask, sizeof(supp_mask));
1969
1970         rc = sfc_flow_parse_init(item,
1971                                  (const void **)&spec, (const void **)&mask,
1972                                  (const void *)&supp_mask,
1973                                  &rte_flow_item_tcp_mask,
1974                                  sizeof(struct rte_flow_item_tcp), error);
1975         if (rc != 0)
1976                 return rc;
1977
1978         pdata->l3_next_proto_restriction_value = IPPROTO_TCP;
1979         pdata->l3_next_proto_restriction_mask = 0xff;
1980
1981         if (spec == NULL)
1982                 return 0;
1983
1984         return sfc_mae_parse_item(flocs_tcp, RTE_DIM(flocs_tcp), spec, mask,
1985                                   ctx_mae, error);
1986 }
1987
1988 static const struct sfc_mae_field_locator flocs_udp[] = {
1989         {
1990                 EFX_MAE_FIELD_L4_SPORT_BE,
1991                 RTE_SIZEOF_FIELD(struct rte_flow_item_udp, hdr.src_port),
1992                 offsetof(struct rte_flow_item_udp, hdr.src_port),
1993         },
1994         {
1995                 EFX_MAE_FIELD_L4_DPORT_BE,
1996                 RTE_SIZEOF_FIELD(struct rte_flow_item_udp, hdr.dst_port),
1997                 offsetof(struct rte_flow_item_udp, hdr.dst_port),
1998         },
1999 };
2000
2001 static int
2002 sfc_mae_rule_parse_item_udp(const struct rte_flow_item *item,
2003                             struct sfc_flow_parse_ctx *ctx,
2004                             struct rte_flow_error *error)
2005 {
2006         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
2007         struct sfc_mae_pattern_data *pdata = &ctx_mae->pattern_data;
2008         struct rte_flow_item_udp supp_mask;
2009         const uint8_t *spec = NULL;
2010         const uint8_t *mask = NULL;
2011         int rc;
2012
2013         sfc_mae_item_build_supp_mask(flocs_udp, RTE_DIM(flocs_udp),
2014                                      &supp_mask, sizeof(supp_mask));
2015
2016         rc = sfc_flow_parse_init(item,
2017                                  (const void **)&spec, (const void **)&mask,
2018                                  (const void *)&supp_mask,
2019                                  &rte_flow_item_udp_mask,
2020                                  sizeof(struct rte_flow_item_udp), error);
2021         if (rc != 0)
2022                 return rc;
2023
2024         pdata->l3_next_proto_restriction_value = IPPROTO_UDP;
2025         pdata->l3_next_proto_restriction_mask = 0xff;
2026
2027         if (spec == NULL)
2028                 return 0;
2029
2030         return sfc_mae_parse_item(flocs_udp, RTE_DIM(flocs_udp), spec, mask,
2031                                   ctx_mae, error);
2032 }
2033
2034 static const struct sfc_mae_field_locator flocs_tunnel[] = {
2035         {
2036                 /*
2037                  * The size and offset values are relevant
2038                  * for Geneve and NVGRE, too.
2039                  */
2040                 .size = RTE_SIZEOF_FIELD(struct rte_flow_item_vxlan, vni),
2041                 .ofst = offsetof(struct rte_flow_item_vxlan, vni),
2042         },
2043 };
2044
2045 /*
2046  * An auxiliary registry which allows using non-encap. field IDs
2047  * directly when building a match specification of type ACTION.
2048  *
2049  * See sfc_mae_rule_parse_pattern() and sfc_mae_rule_parse_item_tunnel().
2050  */
2051 static const efx_mae_field_id_t field_ids_no_remap[] = {
2052 #define FIELD_ID_NO_REMAP(_field) \
2053         [EFX_MAE_FIELD_##_field] = EFX_MAE_FIELD_##_field
2054
2055         FIELD_ID_NO_REMAP(ETHER_TYPE_BE),
2056         FIELD_ID_NO_REMAP(ETH_SADDR_BE),
2057         FIELD_ID_NO_REMAP(ETH_DADDR_BE),
2058         FIELD_ID_NO_REMAP(VLAN0_TCI_BE),
2059         FIELD_ID_NO_REMAP(VLAN0_PROTO_BE),
2060         FIELD_ID_NO_REMAP(VLAN1_TCI_BE),
2061         FIELD_ID_NO_REMAP(VLAN1_PROTO_BE),
2062         FIELD_ID_NO_REMAP(SRC_IP4_BE),
2063         FIELD_ID_NO_REMAP(DST_IP4_BE),
2064         FIELD_ID_NO_REMAP(IP_PROTO),
2065         FIELD_ID_NO_REMAP(IP_TOS),
2066         FIELD_ID_NO_REMAP(IP_TTL),
2067         FIELD_ID_NO_REMAP(SRC_IP6_BE),
2068         FIELD_ID_NO_REMAP(DST_IP6_BE),
2069         FIELD_ID_NO_REMAP(L4_SPORT_BE),
2070         FIELD_ID_NO_REMAP(L4_DPORT_BE),
2071         FIELD_ID_NO_REMAP(TCP_FLAGS_BE),
2072         FIELD_ID_NO_REMAP(HAS_OVLAN),
2073         FIELD_ID_NO_REMAP(HAS_IVLAN),
2074
2075 #undef FIELD_ID_NO_REMAP
2076 };
2077
2078 /*
2079  * An auxiliary registry which allows using "ENC" field IDs
2080  * when building a match specification of type OUTER.
2081  *
2082  * See sfc_mae_rule_encap_parse_init().
2083  */
2084 static const efx_mae_field_id_t field_ids_remap_to_encap[] = {
2085 #define FIELD_ID_REMAP_TO_ENCAP(_field) \
2086         [EFX_MAE_FIELD_##_field] = EFX_MAE_FIELD_ENC_##_field
2087
2088         FIELD_ID_REMAP_TO_ENCAP(ETHER_TYPE_BE),
2089         FIELD_ID_REMAP_TO_ENCAP(ETH_SADDR_BE),
2090         FIELD_ID_REMAP_TO_ENCAP(ETH_DADDR_BE),
2091         FIELD_ID_REMAP_TO_ENCAP(VLAN0_TCI_BE),
2092         FIELD_ID_REMAP_TO_ENCAP(VLAN0_PROTO_BE),
2093         FIELD_ID_REMAP_TO_ENCAP(VLAN1_TCI_BE),
2094         FIELD_ID_REMAP_TO_ENCAP(VLAN1_PROTO_BE),
2095         FIELD_ID_REMAP_TO_ENCAP(SRC_IP4_BE),
2096         FIELD_ID_REMAP_TO_ENCAP(DST_IP4_BE),
2097         FIELD_ID_REMAP_TO_ENCAP(IP_PROTO),
2098         FIELD_ID_REMAP_TO_ENCAP(IP_TOS),
2099         FIELD_ID_REMAP_TO_ENCAP(IP_TTL),
2100         FIELD_ID_REMAP_TO_ENCAP(SRC_IP6_BE),
2101         FIELD_ID_REMAP_TO_ENCAP(DST_IP6_BE),
2102         FIELD_ID_REMAP_TO_ENCAP(L4_SPORT_BE),
2103         FIELD_ID_REMAP_TO_ENCAP(L4_DPORT_BE),
2104         FIELD_ID_REMAP_TO_ENCAP(HAS_OVLAN),
2105         FIELD_ID_REMAP_TO_ENCAP(HAS_IVLAN),
2106
2107 #undef FIELD_ID_REMAP_TO_ENCAP
2108 };
2109
2110 static int
2111 sfc_mae_rule_parse_item_tunnel(const struct rte_flow_item *item,
2112                                struct sfc_flow_parse_ctx *ctx,
2113                                struct rte_flow_error *error)
2114 {
2115         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
2116         uint8_t vnet_id_v[sizeof(uint32_t)] = {0};
2117         uint8_t vnet_id_m[sizeof(uint32_t)] = {0};
2118         const struct rte_flow_item_vxlan *vxp;
2119         uint8_t supp_mask[sizeof(uint64_t)];
2120         const uint8_t *spec = NULL;
2121         const uint8_t *mask = NULL;
2122         int rc;
2123
2124         if (ctx_mae->ft_rule_type == SFC_FT_RULE_GROUP) {
2125                 /*
2126                  * As a workaround, pattern processing has started from
2127                  * this (tunnel) item. No pattern data to process yet.
2128                  */
2129         } else {
2130                 /*
2131                  * We're about to start processing inner frame items.
2132                  * Process pattern data that has been deferred so far
2133                  * and reset pattern data storage.
2134                  */
2135                 rc = sfc_mae_rule_process_pattern_data(ctx_mae, error);
2136                 if (rc != 0)
2137                         return rc;
2138         }
2139
2140         memset(&ctx_mae->pattern_data, 0, sizeof(ctx_mae->pattern_data));
2141
2142         sfc_mae_item_build_supp_mask(flocs_tunnel, RTE_DIM(flocs_tunnel),
2143                                      &supp_mask, sizeof(supp_mask));
2144
2145         /*
2146          * This tunnel item was preliminarily detected by
2147          * sfc_mae_rule_encap_parse_init(). Default mask
2148          * was also picked by that helper. Use it here.
2149          */
2150         rc = sfc_flow_parse_init(item,
2151                                  (const void **)&spec, (const void **)&mask,
2152                                  (const void *)&supp_mask,
2153                                  ctx_mae->tunnel_def_mask,
2154                                  ctx_mae->tunnel_def_mask_size,  error);
2155         if (rc != 0)
2156                 return rc;
2157
2158         /*
2159          * This item and later ones comprise a
2160          * match specification of type ACTION.
2161          */
2162         ctx_mae->match_spec = ctx_mae->match_spec_action;
2163
2164         /* This item and later ones use non-encap. EFX MAE field IDs. */
2165         ctx_mae->field_ids_remap = field_ids_no_remap;
2166
2167         if (spec == NULL)
2168                 return 0;
2169
2170         /*
2171          * Field EFX_MAE_FIELD_ENC_VNET_ID_BE is a 32-bit one.
2172          * Copy 24-bit VNI, which is BE, at offset 1 in it.
2173          * The extra byte is 0 both in the mask and in the value.
2174          */
2175         vxp = (const struct rte_flow_item_vxlan *)spec;
2176         memcpy(vnet_id_v + 1, &vxp->vni, sizeof(vxp->vni));
2177
2178         vxp = (const struct rte_flow_item_vxlan *)mask;
2179         memcpy(vnet_id_m + 1, &vxp->vni, sizeof(vxp->vni));
2180
2181         rc = efx_mae_match_spec_field_set(ctx_mae->match_spec,
2182                                           EFX_MAE_FIELD_ENC_VNET_ID_BE,
2183                                           sizeof(vnet_id_v), vnet_id_v,
2184                                           sizeof(vnet_id_m), vnet_id_m);
2185         if (rc != 0) {
2186                 rc = rte_flow_error_set(error, rc, RTE_FLOW_ERROR_TYPE_ITEM,
2187                                         item, "Failed to set VXLAN VNI");
2188         }
2189
2190         return rc;
2191 }
2192
2193 static const struct sfc_flow_item sfc_flow_items[] = {
2194         {
2195                 .type = RTE_FLOW_ITEM_TYPE_MARK,
2196                 .name = "MARK",
2197                 .prev_layer = SFC_FLOW_ITEM_ANY_LAYER,
2198                 .layer = SFC_FLOW_ITEM_ANY_LAYER,
2199                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2200                 .parse = sfc_mae_rule_parse_item_mark,
2201         },
2202         {
2203                 .type = RTE_FLOW_ITEM_TYPE_PORT_ID,
2204                 .name = "PORT_ID",
2205                 /*
2206                  * In terms of RTE flow, this item is a META one,
2207                  * and its position in the pattern is don't care.
2208                  */
2209                 .prev_layer = SFC_FLOW_ITEM_ANY_LAYER,
2210                 .layer = SFC_FLOW_ITEM_ANY_LAYER,
2211                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2212                 .parse = sfc_mae_rule_parse_item_port_id,
2213         },
2214         {
2215                 .type = RTE_FLOW_ITEM_TYPE_PHY_PORT,
2216                 .name = "PHY_PORT",
2217                 /*
2218                  * In terms of RTE flow, this item is a META one,
2219                  * and its position in the pattern is don't care.
2220                  */
2221                 .prev_layer = SFC_FLOW_ITEM_ANY_LAYER,
2222                 .layer = SFC_FLOW_ITEM_ANY_LAYER,
2223                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2224                 .parse = sfc_mae_rule_parse_item_phy_port,
2225         },
2226         {
2227                 .type = RTE_FLOW_ITEM_TYPE_PF,
2228                 .name = "PF",
2229                 /*
2230                  * In terms of RTE flow, this item is a META one,
2231                  * and its position in the pattern is don't care.
2232                  */
2233                 .prev_layer = SFC_FLOW_ITEM_ANY_LAYER,
2234                 .layer = SFC_FLOW_ITEM_ANY_LAYER,
2235                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2236                 .parse = sfc_mae_rule_parse_item_pf,
2237         },
2238         {
2239                 .type = RTE_FLOW_ITEM_TYPE_VF,
2240                 .name = "VF",
2241                 /*
2242                  * In terms of RTE flow, this item is a META one,
2243                  * and its position in the pattern is don't care.
2244                  */
2245                 .prev_layer = SFC_FLOW_ITEM_ANY_LAYER,
2246                 .layer = SFC_FLOW_ITEM_ANY_LAYER,
2247                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2248                 .parse = sfc_mae_rule_parse_item_vf,
2249         },
2250         {
2251                 .type = RTE_FLOW_ITEM_TYPE_ETH,
2252                 .name = "ETH",
2253                 .prev_layer = SFC_FLOW_ITEM_START_LAYER,
2254                 .layer = SFC_FLOW_ITEM_L2,
2255                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2256                 .parse = sfc_mae_rule_parse_item_eth,
2257         },
2258         {
2259                 .type = RTE_FLOW_ITEM_TYPE_VLAN,
2260                 .name = "VLAN",
2261                 .prev_layer = SFC_FLOW_ITEM_L2,
2262                 .layer = SFC_FLOW_ITEM_L2,
2263                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2264                 .parse = sfc_mae_rule_parse_item_vlan,
2265         },
2266         {
2267                 .type = RTE_FLOW_ITEM_TYPE_IPV4,
2268                 .name = "IPV4",
2269                 .prev_layer = SFC_FLOW_ITEM_L2,
2270                 .layer = SFC_FLOW_ITEM_L3,
2271                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2272                 .parse = sfc_mae_rule_parse_item_ipv4,
2273         },
2274         {
2275                 .type = RTE_FLOW_ITEM_TYPE_IPV6,
2276                 .name = "IPV6",
2277                 .prev_layer = SFC_FLOW_ITEM_L2,
2278                 .layer = SFC_FLOW_ITEM_L3,
2279                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2280                 .parse = sfc_mae_rule_parse_item_ipv6,
2281         },
2282         {
2283                 .type = RTE_FLOW_ITEM_TYPE_TCP,
2284                 .name = "TCP",
2285                 .prev_layer = SFC_FLOW_ITEM_L3,
2286                 .layer = SFC_FLOW_ITEM_L4,
2287                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2288                 .parse = sfc_mae_rule_parse_item_tcp,
2289         },
2290         {
2291                 .type = RTE_FLOW_ITEM_TYPE_UDP,
2292                 .name = "UDP",
2293                 .prev_layer = SFC_FLOW_ITEM_L3,
2294                 .layer = SFC_FLOW_ITEM_L4,
2295                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2296                 .parse = sfc_mae_rule_parse_item_udp,
2297         },
2298         {
2299                 .type = RTE_FLOW_ITEM_TYPE_VXLAN,
2300                 .name = "VXLAN",
2301                 .prev_layer = SFC_FLOW_ITEM_L4,
2302                 .layer = SFC_FLOW_ITEM_START_LAYER,
2303                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2304                 .parse = sfc_mae_rule_parse_item_tunnel,
2305         },
2306         {
2307                 .type = RTE_FLOW_ITEM_TYPE_GENEVE,
2308                 .name = "GENEVE",
2309                 .prev_layer = SFC_FLOW_ITEM_L4,
2310                 .layer = SFC_FLOW_ITEM_START_LAYER,
2311                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2312                 .parse = sfc_mae_rule_parse_item_tunnel,
2313         },
2314         {
2315                 .type = RTE_FLOW_ITEM_TYPE_NVGRE,
2316                 .name = "NVGRE",
2317                 .prev_layer = SFC_FLOW_ITEM_L3,
2318                 .layer = SFC_FLOW_ITEM_START_LAYER,
2319                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2320                 .parse = sfc_mae_rule_parse_item_tunnel,
2321         },
2322 };
2323
2324 static int
2325 sfc_mae_rule_process_outer(struct sfc_adapter *sa,
2326                            struct sfc_mae_parse_ctx *ctx,
2327                            struct sfc_mae_outer_rule **rulep,
2328                            struct rte_flow_error *error)
2329 {
2330         efx_mae_rule_id_t invalid_rule_id = { .id = EFX_MAE_RSRC_ID_INVALID };
2331         int rc;
2332
2333         if (ctx->encap_type == EFX_TUNNEL_PROTOCOL_NONE) {
2334                 *rulep = NULL;
2335                 goto no_or_id;
2336         }
2337
2338         SFC_ASSERT(ctx->match_spec_outer != NULL);
2339
2340         if (!efx_mae_match_spec_is_valid(sa->nic, ctx->match_spec_outer)) {
2341                 return rte_flow_error_set(error, ENOTSUP,
2342                                           RTE_FLOW_ERROR_TYPE_ITEM, NULL,
2343                                           "Inconsistent pattern (outer)");
2344         }
2345
2346         *rulep = sfc_mae_outer_rule_attach(sa, ctx->match_spec_outer,
2347                                            ctx->encap_type);
2348         if (*rulep != NULL) {
2349                 efx_mae_match_spec_fini(sa->nic, ctx->match_spec_outer);
2350         } else {
2351                 rc = sfc_mae_outer_rule_add(sa, ctx->match_spec_outer,
2352                                             ctx->encap_type, rulep);
2353                 if (rc != 0) {
2354                         return rte_flow_error_set(error, rc,
2355                                         RTE_FLOW_ERROR_TYPE_ITEM, NULL,
2356                                         "Failed to process the pattern");
2357                 }
2358         }
2359
2360         /* The spec has now been tracked by the outer rule entry. */
2361         ctx->match_spec_outer = NULL;
2362
2363 no_or_id:
2364         switch (ctx->ft_rule_type) {
2365         case SFC_FT_RULE_NONE:
2366                 break;
2367         case SFC_FT_RULE_JUMP:
2368                 /* No action rule */
2369                 return 0;
2370         case SFC_FT_RULE_GROUP:
2371                 /*
2372                  * Match on recirculation ID rather than
2373                  * on the outer rule allocation handle.
2374                  */
2375                 rc = efx_mae_match_spec_recirc_id_set(ctx->match_spec_action,
2376                                         SFC_FT_ID_TO_TUNNEL_MARK(ctx->ft->id));
2377                 if (rc != 0) {
2378                         return rte_flow_error_set(error, rc,
2379                                         RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
2380                                         "tunnel offload: GROUP: AR: failed to request match on RECIRC_ID");
2381                 }
2382                 return 0;
2383         default:
2384                 SFC_ASSERT(B_FALSE);
2385         }
2386
2387         /*
2388          * In MAE, lookup sequence comprises outer parse, outer rule lookup,
2389          * inner parse (when some outer rule is hit) and action rule lookup.
2390          * If the currently processed flow does not come with an outer rule,
2391          * its action rule must be available only for packets which miss in
2392          * outer rule table. Set OR_ID match field to 0xffffffff/0xffffffff
2393          * in the action rule specification; this ensures correct behaviour.
2394          *
2395          * If, on the other hand, this flow does have an outer rule, its ID
2396          * may be unknown at the moment (not yet allocated), but OR_ID mask
2397          * has to be set to 0xffffffff anyway for correct class comparisons.
2398          * When the outer rule has been allocated, this match field will be
2399          * overridden by sfc_mae_outer_rule_enable() to use the right value.
2400          */
2401         rc = efx_mae_match_spec_outer_rule_id_set(ctx->match_spec_action,
2402                                                   &invalid_rule_id);
2403         if (rc != 0) {
2404                 if (*rulep != NULL)
2405                         sfc_mae_outer_rule_del(sa, *rulep);
2406
2407                 *rulep = NULL;
2408
2409                 return rte_flow_error_set(error, rc,
2410                                           RTE_FLOW_ERROR_TYPE_ITEM, NULL,
2411                                           "Failed to process the pattern");
2412         }
2413
2414         return 0;
2415 }
2416
2417 static int
2418 sfc_mae_rule_preparse_item_mark(const struct rte_flow_item_mark *spec,
2419                                 struct sfc_mae_parse_ctx *ctx)
2420 {
2421         struct sfc_flow_tunnel *ft;
2422         uint32_t user_mark;
2423
2424         if (spec == NULL) {
2425                 sfc_err(ctx->sa, "tunnel offload: GROUP: NULL spec in item MARK");
2426                 return EINVAL;
2427         }
2428
2429         ft = sfc_flow_tunnel_pick(ctx->sa, spec->id);
2430         if (ft == NULL) {
2431                 sfc_err(ctx->sa, "tunnel offload: GROUP: invalid tunnel");
2432                 return EINVAL;
2433         }
2434
2435         if (ft->refcnt == 0) {
2436                 sfc_err(ctx->sa, "tunnel offload: GROUP: tunnel=%u does not exist",
2437                         ft->id);
2438                 return ENOENT;
2439         }
2440
2441         user_mark = SFC_FT_GET_USER_MARK(spec->id);
2442         if (user_mark != 0) {
2443                 sfc_err(ctx->sa, "tunnel offload: GROUP: invalid item MARK");
2444                 return EINVAL;
2445         }
2446
2447         sfc_dbg(ctx->sa, "tunnel offload: GROUP: detected");
2448
2449         ctx->ft_rule_type = SFC_FT_RULE_GROUP;
2450         ctx->ft = ft;
2451
2452         return 0;
2453 }
2454
2455 static int
2456 sfc_mae_rule_encap_parse_init(struct sfc_adapter *sa,
2457                               struct sfc_mae_parse_ctx *ctx,
2458                               struct rte_flow_error *error)
2459 {
2460         const struct rte_flow_item *pattern = ctx->pattern;
2461         struct sfc_mae *mae = &sa->mae;
2462         uint8_t recirc_id = 0;
2463         int rc;
2464
2465         if (pattern == NULL) {
2466                 rte_flow_error_set(error, EINVAL,
2467                                    RTE_FLOW_ERROR_TYPE_ITEM_NUM, NULL,
2468                                    "NULL pattern");
2469                 return -rte_errno;
2470         }
2471
2472         for (;;) {
2473                 switch (pattern->type) {
2474                 case RTE_FLOW_ITEM_TYPE_MARK:
2475                         rc = sfc_mae_rule_preparse_item_mark(pattern->spec,
2476                                                              ctx);
2477                         if (rc != 0) {
2478                                 return rte_flow_error_set(error, rc,
2479                                                   RTE_FLOW_ERROR_TYPE_ITEM,
2480                                                   pattern, "tunnel offload: GROUP: invalid item MARK");
2481                         }
2482                         ++pattern;
2483                         continue;
2484                 case RTE_FLOW_ITEM_TYPE_VXLAN:
2485                         ctx->encap_type = EFX_TUNNEL_PROTOCOL_VXLAN;
2486                         ctx->tunnel_def_mask = &rte_flow_item_vxlan_mask;
2487                         ctx->tunnel_def_mask_size =
2488                                 sizeof(rte_flow_item_vxlan_mask);
2489                         break;
2490                 case RTE_FLOW_ITEM_TYPE_GENEVE:
2491                         ctx->encap_type = EFX_TUNNEL_PROTOCOL_GENEVE;
2492                         ctx->tunnel_def_mask = &rte_flow_item_geneve_mask;
2493                         ctx->tunnel_def_mask_size =
2494                                 sizeof(rte_flow_item_geneve_mask);
2495                         break;
2496                 case RTE_FLOW_ITEM_TYPE_NVGRE:
2497                         ctx->encap_type = EFX_TUNNEL_PROTOCOL_NVGRE;
2498                         ctx->tunnel_def_mask = &rte_flow_item_nvgre_mask;
2499                         ctx->tunnel_def_mask_size =
2500                                 sizeof(rte_flow_item_nvgre_mask);
2501                         break;
2502                 case RTE_FLOW_ITEM_TYPE_END:
2503                         break;
2504                 default:
2505                         ++pattern;
2506                         continue;
2507                 };
2508
2509                 break;
2510         }
2511
2512         switch (ctx->ft_rule_type) {
2513         case SFC_FT_RULE_NONE:
2514                 if (pattern->type == RTE_FLOW_ITEM_TYPE_END)
2515                         return 0;
2516                 break;
2517         case SFC_FT_RULE_JUMP:
2518                 if (pattern->type != RTE_FLOW_ITEM_TYPE_END) {
2519                         return rte_flow_error_set(error, ENOTSUP,
2520                                                   RTE_FLOW_ERROR_TYPE_ITEM,
2521                                                   pattern, "tunnel offload: JUMP: invalid item");
2522                 }
2523                 ctx->encap_type = ctx->ft->encap_type;
2524                 break;
2525         case SFC_FT_RULE_GROUP:
2526                 if (pattern->type == RTE_FLOW_ITEM_TYPE_END) {
2527                         return rte_flow_error_set(error, EINVAL,
2528                                                   RTE_FLOW_ERROR_TYPE_ITEM,
2529                                                   NULL, "tunnel offload: GROUP: missing tunnel item");
2530                 } else if (ctx->encap_type != ctx->ft->encap_type) {
2531                         return rte_flow_error_set(error, EINVAL,
2532                                                   RTE_FLOW_ERROR_TYPE_ITEM,
2533                                                   pattern, "tunnel offload: GROUP: tunnel type mismatch");
2534                 }
2535
2536                 /*
2537                  * The HW/FW hasn't got support for the use of "ENC" fields in
2538                  * action rules (except the VNET_ID one) yet. As a workaround,
2539                  * start parsing the pattern from the tunnel item.
2540                  */
2541                 ctx->pattern = pattern;
2542                 break;
2543         default:
2544                 SFC_ASSERT(B_FALSE);
2545                 break;
2546         }
2547
2548         if ((mae->encap_types_supported & (1U << ctx->encap_type)) == 0) {
2549                 return rte_flow_error_set(error, ENOTSUP,
2550                                           RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
2551                                           "OR: unsupported tunnel type");
2552         }
2553
2554         switch (ctx->ft_rule_type) {
2555         case SFC_FT_RULE_JUMP:
2556                 recirc_id = SFC_FT_ID_TO_TUNNEL_MARK(ctx->ft->id);
2557                 /* FALLTHROUGH */
2558         case SFC_FT_RULE_NONE:
2559                 if (ctx->priority >= mae->nb_outer_rule_prios_max) {
2560                         return rte_flow_error_set(error, ENOTSUP,
2561                                         RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
2562                                         NULL, "OR: unsupported priority level");
2563                 }
2564
2565                 rc = efx_mae_match_spec_init(sa->nic,
2566                                              EFX_MAE_RULE_OUTER, ctx->priority,
2567                                              &ctx->match_spec_outer);
2568                 if (rc != 0) {
2569                         return rte_flow_error_set(error, rc,
2570                                 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
2571                                 "OR: failed to initialise the match specification");
2572                 }
2573
2574                 /*
2575                  * Outermost items comprise a match
2576                  * specification of type OUTER.
2577                  */
2578                 ctx->match_spec = ctx->match_spec_outer;
2579
2580                 /* Outermost items use "ENC" EFX MAE field IDs. */
2581                 ctx->field_ids_remap = field_ids_remap_to_encap;
2582
2583                 rc = efx_mae_outer_rule_recirc_id_set(ctx->match_spec,
2584                                                       recirc_id);
2585                 if (rc != 0) {
2586                         return rte_flow_error_set(error, rc,
2587                                         RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
2588                                         "OR: failed to initialise RECIRC_ID");
2589                 }
2590                 break;
2591         case SFC_FT_RULE_GROUP:
2592                 /* Outermost items -> "ENC" match fields in the action rule. */
2593                 ctx->field_ids_remap = field_ids_remap_to_encap;
2594                 ctx->match_spec = ctx->match_spec_action;
2595
2596                 /* No own outer rule; match on JUMP OR's RECIRC_ID is used. */
2597                 ctx->encap_type = EFX_TUNNEL_PROTOCOL_NONE;
2598                 break;
2599         default:
2600                 SFC_ASSERT(B_FALSE);
2601                 break;
2602         }
2603
2604         return 0;
2605 }
2606
2607 static void
2608 sfc_mae_rule_encap_parse_fini(struct sfc_adapter *sa,
2609                               struct sfc_mae_parse_ctx *ctx)
2610 {
2611         if (ctx->encap_type == EFX_TUNNEL_PROTOCOL_NONE)
2612                 return;
2613
2614         if (ctx->match_spec_outer != NULL)
2615                 efx_mae_match_spec_fini(sa->nic, ctx->match_spec_outer);
2616 }
2617
2618 int
2619 sfc_mae_rule_parse_pattern(struct sfc_adapter *sa,
2620                            const struct rte_flow_item pattern[],
2621                            struct sfc_flow_spec_mae *spec,
2622                            struct rte_flow_error *error)
2623 {
2624         struct sfc_mae_parse_ctx ctx_mae;
2625         unsigned int priority_shift = 0;
2626         struct sfc_flow_parse_ctx ctx;
2627         int rc;
2628
2629         memset(&ctx_mae, 0, sizeof(ctx_mae));
2630         ctx_mae.ft_rule_type = spec->ft_rule_type;
2631         ctx_mae.priority = spec->priority;
2632         ctx_mae.ft = spec->ft;
2633         ctx_mae.sa = sa;
2634
2635         switch (ctx_mae.ft_rule_type) {
2636         case SFC_FT_RULE_JUMP:
2637                 /*
2638                  * By design, this flow should be represented solely by the
2639                  * outer rule. But the HW/FW hasn't got support for setting
2640                  * Rx mark from RECIRC_ID on outer rule lookup yet. Neither
2641                  * does it support outer rule counters. As a workaround, an
2642                  * action rule of lower priority is used to do the job.
2643                  */
2644                 priority_shift = 1;
2645
2646                 /* FALLTHROUGH */
2647         case SFC_FT_RULE_GROUP:
2648                 if (ctx_mae.priority != 0) {
2649                         /*
2650                          * Because of the above workaround, deny the
2651                          * use of priorities to JUMP and GROUP rules.
2652                          */
2653                         rc = rte_flow_error_set(error, ENOTSUP,
2654                                 RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY, NULL,
2655                                 "tunnel offload: priorities are not supported");
2656                         goto fail_priority_check;
2657                 }
2658
2659                 /* FALLTHROUGH */
2660         case SFC_FT_RULE_NONE:
2661                 rc = efx_mae_match_spec_init(sa->nic, EFX_MAE_RULE_ACTION,
2662                                              spec->priority + priority_shift,
2663                                              &ctx_mae.match_spec_action);
2664                 if (rc != 0) {
2665                         rc = rte_flow_error_set(error, rc,
2666                                 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
2667                                 "AR: failed to initialise the match specification");
2668                         goto fail_init_match_spec_action;
2669                 }
2670                 break;
2671         default:
2672                 SFC_ASSERT(B_FALSE);
2673                 break;
2674         }
2675
2676         /*
2677          * As a preliminary setting, assume that there is no encapsulation
2678          * in the pattern. That is, pattern items are about to comprise a
2679          * match specification of type ACTION and use non-encap. field IDs.
2680          *
2681          * sfc_mae_rule_encap_parse_init() below may override this.
2682          */
2683         ctx_mae.encap_type = EFX_TUNNEL_PROTOCOL_NONE;
2684         ctx_mae.match_spec = ctx_mae.match_spec_action;
2685         ctx_mae.field_ids_remap = field_ids_no_remap;
2686         ctx_mae.pattern = pattern;
2687
2688         ctx.type = SFC_FLOW_PARSE_CTX_MAE;
2689         ctx.mae = &ctx_mae;
2690
2691         rc = sfc_mae_rule_encap_parse_init(sa, &ctx_mae, error);
2692         if (rc != 0)
2693                 goto fail_encap_parse_init;
2694
2695         /*
2696          * sfc_mae_rule_encap_parse_init() may have detected tunnel offload
2697          * GROUP rule. Remember its properties for later use.
2698          */
2699         spec->ft_rule_type = ctx_mae.ft_rule_type;
2700         spec->ft = ctx_mae.ft;
2701
2702         rc = sfc_flow_parse_pattern(sa, sfc_flow_items, RTE_DIM(sfc_flow_items),
2703                                     ctx_mae.pattern, &ctx, error);
2704         if (rc != 0)
2705                 goto fail_parse_pattern;
2706
2707         rc = sfc_mae_rule_process_pattern_data(&ctx_mae, error);
2708         if (rc != 0)
2709                 goto fail_process_pattern_data;
2710
2711         rc = sfc_mae_rule_process_outer(sa, &ctx_mae, &spec->outer_rule, error);
2712         if (rc != 0)
2713                 goto fail_process_outer;
2714
2715         if (ctx_mae.match_spec_action != NULL &&
2716             !efx_mae_match_spec_is_valid(sa->nic, ctx_mae.match_spec_action)) {
2717                 rc = rte_flow_error_set(error, ENOTSUP,
2718                                         RTE_FLOW_ERROR_TYPE_ITEM, NULL,
2719                                         "Inconsistent pattern");
2720                 goto fail_validate_match_spec_action;
2721         }
2722
2723         spec->match_spec = ctx_mae.match_spec_action;
2724
2725         return 0;
2726
2727 fail_validate_match_spec_action:
2728 fail_process_outer:
2729 fail_process_pattern_data:
2730 fail_parse_pattern:
2731         sfc_mae_rule_encap_parse_fini(sa, &ctx_mae);
2732
2733 fail_encap_parse_init:
2734         if (ctx_mae.match_spec_action != NULL)
2735                 efx_mae_match_spec_fini(sa->nic, ctx_mae.match_spec_action);
2736
2737 fail_init_match_spec_action:
2738 fail_priority_check:
2739         return rc;
2740 }
2741
2742 /*
2743  * An action supported by MAE may correspond to a bundle of RTE flow actions,
2744  * in example, VLAN_PUSH = OF_PUSH_VLAN + OF_VLAN_SET_VID + OF_VLAN_SET_PCP.
2745  * That is, related RTE flow actions need to be tracked as parts of a whole
2746  * so that they can be combined into a single action and submitted to MAE
2747  * representation of a given rule's action set.
2748  *
2749  * Each RTE flow action provided by an application gets classified as
2750  * one belonging to some bundle type. If an action is not supposed to
2751  * belong to any bundle, or if this action is END, it is described as
2752  * one belonging to a dummy bundle of type EMPTY.
2753  *
2754  * A currently tracked bundle will be submitted if a repeating
2755  * action or an action of different bundle type follows.
2756  */
2757
2758 enum sfc_mae_actions_bundle_type {
2759         SFC_MAE_ACTIONS_BUNDLE_EMPTY = 0,
2760         SFC_MAE_ACTIONS_BUNDLE_VLAN_PUSH,
2761 };
2762
2763 struct sfc_mae_actions_bundle {
2764         enum sfc_mae_actions_bundle_type        type;
2765
2766         /* Indicates actions already tracked by the current bundle */
2767         uint64_t                                actions_mask;
2768
2769         /* Parameters used by SFC_MAE_ACTIONS_BUNDLE_VLAN_PUSH */
2770         rte_be16_t                              vlan_push_tpid;
2771         rte_be16_t                              vlan_push_tci;
2772 };
2773
2774 /*
2775  * Combine configuration of RTE flow actions tracked by the bundle into a
2776  * single action and submit the result to MAE action set specification.
2777  * Do nothing in the case of dummy action bundle.
2778  */
2779 static int
2780 sfc_mae_actions_bundle_submit(const struct sfc_mae_actions_bundle *bundle,
2781                               efx_mae_actions_t *spec)
2782 {
2783         int rc = 0;
2784
2785         switch (bundle->type) {
2786         case SFC_MAE_ACTIONS_BUNDLE_EMPTY:
2787                 break;
2788         case SFC_MAE_ACTIONS_BUNDLE_VLAN_PUSH:
2789                 rc = efx_mae_action_set_populate_vlan_push(
2790                         spec, bundle->vlan_push_tpid, bundle->vlan_push_tci);
2791                 break;
2792         default:
2793                 SFC_ASSERT(B_FALSE);
2794                 break;
2795         }
2796
2797         return rc;
2798 }
2799
2800 /*
2801  * Given the type of the next RTE flow action in the line, decide
2802  * whether a new bundle is about to start, and, if this is the case,
2803  * submit and reset the current bundle.
2804  */
2805 static int
2806 sfc_mae_actions_bundle_sync(const struct rte_flow_action *action,
2807                             struct sfc_mae_actions_bundle *bundle,
2808                             efx_mae_actions_t *spec,
2809                             struct rte_flow_error *error)
2810 {
2811         enum sfc_mae_actions_bundle_type bundle_type_new;
2812         int rc;
2813
2814         switch (action->type) {
2815         case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN:
2816         case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID:
2817         case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP:
2818                 bundle_type_new = SFC_MAE_ACTIONS_BUNDLE_VLAN_PUSH;
2819                 break;
2820         default:
2821                 /*
2822                  * Self-sufficient actions, including END, are handled in this
2823                  * case. No checks for unsupported actions are needed here
2824                  * because parsing doesn't occur at this point.
2825                  */
2826                 bundle_type_new = SFC_MAE_ACTIONS_BUNDLE_EMPTY;
2827                 break;
2828         }
2829
2830         if (bundle_type_new != bundle->type ||
2831             (bundle->actions_mask & (1ULL << action->type)) != 0) {
2832                 rc = sfc_mae_actions_bundle_submit(bundle, spec);
2833                 if (rc != 0)
2834                         goto fail_submit;
2835
2836                 memset(bundle, 0, sizeof(*bundle));
2837         }
2838
2839         bundle->type = bundle_type_new;
2840
2841         return 0;
2842
2843 fail_submit:
2844         return rte_flow_error_set(error, rc,
2845                         RTE_FLOW_ERROR_TYPE_ACTION, NULL,
2846                         "Failed to request the (group of) action(s)");
2847 }
2848
2849 static void
2850 sfc_mae_rule_parse_action_of_push_vlan(
2851                             const struct rte_flow_action_of_push_vlan *conf,
2852                             struct sfc_mae_actions_bundle *bundle)
2853 {
2854         bundle->vlan_push_tpid = conf->ethertype;
2855 }
2856
2857 static void
2858 sfc_mae_rule_parse_action_of_set_vlan_vid(
2859                             const struct rte_flow_action_of_set_vlan_vid *conf,
2860                             struct sfc_mae_actions_bundle *bundle)
2861 {
2862         bundle->vlan_push_tci |= (conf->vlan_vid &
2863                                   rte_cpu_to_be_16(RTE_LEN2MASK(12, uint16_t)));
2864 }
2865
2866 static void
2867 sfc_mae_rule_parse_action_of_set_vlan_pcp(
2868                             const struct rte_flow_action_of_set_vlan_pcp *conf,
2869                             struct sfc_mae_actions_bundle *bundle)
2870 {
2871         uint16_t vlan_tci_pcp = (uint16_t)(conf->vlan_pcp &
2872                                            RTE_LEN2MASK(3, uint8_t)) << 13;
2873
2874         bundle->vlan_push_tci |= rte_cpu_to_be_16(vlan_tci_pcp);
2875 }
2876
2877 struct sfc_mae_parsed_item {
2878         const struct rte_flow_item      *item;
2879         size_t                          proto_header_ofst;
2880         size_t                          proto_header_size;
2881 };
2882
2883 /*
2884  * For each 16-bit word of the given header, override
2885  * bits enforced by the corresponding 16-bit mask.
2886  */
2887 static void
2888 sfc_mae_header_force_item_masks(uint8_t *header_buf,
2889                                 const struct sfc_mae_parsed_item *parsed_items,
2890                                 unsigned int nb_parsed_items)
2891 {
2892         unsigned int item_idx;
2893
2894         for (item_idx = 0; item_idx < nb_parsed_items; ++item_idx) {
2895                 const struct sfc_mae_parsed_item *parsed_item;
2896                 const struct rte_flow_item *item;
2897                 size_t proto_header_size;
2898                 size_t ofst;
2899
2900                 parsed_item = &parsed_items[item_idx];
2901                 proto_header_size = parsed_item->proto_header_size;
2902                 item = parsed_item->item;
2903
2904                 for (ofst = 0; ofst < proto_header_size;
2905                      ofst += sizeof(rte_be16_t)) {
2906                         rte_be16_t *wp = RTE_PTR_ADD(header_buf, ofst);
2907                         const rte_be16_t *w_maskp;
2908                         const rte_be16_t *w_specp;
2909
2910                         w_maskp = RTE_PTR_ADD(item->mask, ofst);
2911                         w_specp = RTE_PTR_ADD(item->spec, ofst);
2912
2913                         *wp &= ~(*w_maskp);
2914                         *wp |= (*w_specp & *w_maskp);
2915                 }
2916
2917                 header_buf += proto_header_size;
2918         }
2919 }
2920
2921 #define SFC_IPV4_TTL_DEF        0x40
2922 #define SFC_IPV6_VTC_FLOW_DEF   0x60000000
2923 #define SFC_IPV6_HOP_LIMITS_DEF 0xff
2924 #define SFC_VXLAN_FLAGS_DEF     0x08000000
2925
2926 static int
2927 sfc_mae_rule_parse_action_vxlan_encap(
2928                             struct sfc_mae *mae,
2929                             const struct rte_flow_action_vxlan_encap *conf,
2930                             efx_mae_actions_t *spec,
2931                             struct rte_flow_error *error)
2932 {
2933         struct sfc_mae_bounce_eh *bounce_eh = &mae->bounce_eh;
2934         struct rte_flow_item *pattern = conf->definition;
2935         uint8_t *buf = bounce_eh->buf;
2936
2937         /* This array will keep track of non-VOID pattern items. */
2938         struct sfc_mae_parsed_item parsed_items[1 /* Ethernet */ +
2939                                                 2 /* VLAN tags */ +
2940                                                 1 /* IPv4 or IPv6 */ +
2941                                                 1 /* UDP */ +
2942                                                 1 /* VXLAN */];
2943         unsigned int nb_parsed_items = 0;
2944
2945         size_t eth_ethertype_ofst = offsetof(struct rte_ether_hdr, ether_type);
2946         uint8_t dummy_buf[RTE_MAX(sizeof(struct rte_ipv4_hdr),
2947                                   sizeof(struct rte_ipv6_hdr))];
2948         struct rte_ipv4_hdr *ipv4 = (void *)dummy_buf;
2949         struct rte_ipv6_hdr *ipv6 = (void *)dummy_buf;
2950         struct rte_vxlan_hdr *vxlan = NULL;
2951         struct rte_udp_hdr *udp = NULL;
2952         unsigned int nb_vlan_tags = 0;
2953         size_t next_proto_ofst = 0;
2954         size_t ethertype_ofst = 0;
2955         uint64_t exp_items;
2956         int rc;
2957
2958         if (pattern == NULL) {
2959                 return rte_flow_error_set(error, EINVAL,
2960                                 RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
2961                                 "The encap. header definition is NULL");
2962         }
2963
2964         bounce_eh->type = EFX_TUNNEL_PROTOCOL_VXLAN;
2965         bounce_eh->size = 0;
2966
2967         /*
2968          * Process pattern items and remember non-VOID ones.
2969          * Defer applying masks until after the complete header
2970          * has been built from the pattern items.
2971          */
2972         exp_items = RTE_BIT64(RTE_FLOW_ITEM_TYPE_ETH);
2973
2974         for (; pattern->type != RTE_FLOW_ITEM_TYPE_END; ++pattern) {
2975                 struct sfc_mae_parsed_item *parsed_item;
2976                 const uint64_t exp_items_extra_vlan[] = {
2977                         RTE_BIT64(RTE_FLOW_ITEM_TYPE_VLAN), 0
2978                 };
2979                 size_t proto_header_size;
2980                 rte_be16_t *ethertypep;
2981                 uint8_t *next_protop;
2982                 uint8_t *buf_cur;
2983
2984                 if (pattern->spec == NULL) {
2985                         return rte_flow_error_set(error, EINVAL,
2986                                         RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
2987                                         "NULL item spec in the encap. header");
2988                 }
2989
2990                 if (pattern->mask == NULL) {
2991                         return rte_flow_error_set(error, EINVAL,
2992                                         RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
2993                                         "NULL item mask in the encap. header");
2994                 }
2995
2996                 if (pattern->last != NULL) {
2997                         /* This is not a match pattern, so disallow range. */
2998                         return rte_flow_error_set(error, EINVAL,
2999                                         RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
3000                                         "Range item in the encap. header");
3001                 }
3002
3003                 if (pattern->type == RTE_FLOW_ITEM_TYPE_VOID) {
3004                         /* Handle VOID separately, for clarity. */
3005                         continue;
3006                 }
3007
3008                 if ((exp_items & RTE_BIT64(pattern->type)) == 0) {
3009                         return rte_flow_error_set(error, ENOTSUP,
3010                                         RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
3011                                         "Unexpected item in the encap. header");
3012                 }
3013
3014                 parsed_item = &parsed_items[nb_parsed_items];
3015                 buf_cur = buf + bounce_eh->size;
3016
3017                 switch (pattern->type) {
3018                 case RTE_FLOW_ITEM_TYPE_ETH:
3019                         SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ITEM_TYPE_ETH,
3020                                                exp_items);
3021                         RTE_BUILD_BUG_ON(offsetof(struct rte_flow_item_eth,
3022                                                   hdr) != 0);
3023
3024                         proto_header_size = sizeof(struct rte_ether_hdr);
3025
3026                         ethertype_ofst = eth_ethertype_ofst;
3027
3028                         exp_items = RTE_BIT64(RTE_FLOW_ITEM_TYPE_VLAN) |
3029                                     RTE_BIT64(RTE_FLOW_ITEM_TYPE_IPV4) |
3030                                     RTE_BIT64(RTE_FLOW_ITEM_TYPE_IPV6);
3031                         break;
3032                 case RTE_FLOW_ITEM_TYPE_VLAN:
3033                         SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ITEM_TYPE_VLAN,
3034                                                exp_items);
3035                         RTE_BUILD_BUG_ON(offsetof(struct rte_flow_item_vlan,
3036                                                   hdr) != 0);
3037
3038                         proto_header_size = sizeof(struct rte_vlan_hdr);
3039
3040                         ethertypep = RTE_PTR_ADD(buf, eth_ethertype_ofst);
3041                         *ethertypep = RTE_BE16(RTE_ETHER_TYPE_QINQ);
3042
3043                         ethertypep = RTE_PTR_ADD(buf, ethertype_ofst);
3044                         *ethertypep = RTE_BE16(RTE_ETHER_TYPE_VLAN);
3045
3046                         ethertype_ofst =
3047                             bounce_eh->size +
3048                             offsetof(struct rte_vlan_hdr, eth_proto);
3049
3050                         exp_items = RTE_BIT64(RTE_FLOW_ITEM_TYPE_IPV4) |
3051                                     RTE_BIT64(RTE_FLOW_ITEM_TYPE_IPV6);
3052                         exp_items |= exp_items_extra_vlan[nb_vlan_tags];
3053
3054                         ++nb_vlan_tags;
3055                         break;
3056                 case RTE_FLOW_ITEM_TYPE_IPV4:
3057                         SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ITEM_TYPE_IPV4,
3058                                                exp_items);
3059                         RTE_BUILD_BUG_ON(offsetof(struct rte_flow_item_ipv4,
3060                                                   hdr) != 0);
3061
3062                         proto_header_size = sizeof(struct rte_ipv4_hdr);
3063
3064                         ethertypep = RTE_PTR_ADD(buf, ethertype_ofst);
3065                         *ethertypep = RTE_BE16(RTE_ETHER_TYPE_IPV4);
3066
3067                         next_proto_ofst =
3068                             bounce_eh->size +
3069                             offsetof(struct rte_ipv4_hdr, next_proto_id);
3070
3071                         ipv4 = (struct rte_ipv4_hdr *)buf_cur;
3072
3073                         exp_items = RTE_BIT64(RTE_FLOW_ITEM_TYPE_UDP);
3074                         break;
3075                 case RTE_FLOW_ITEM_TYPE_IPV6:
3076                         SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ITEM_TYPE_IPV6,
3077                                                exp_items);
3078                         RTE_BUILD_BUG_ON(offsetof(struct rte_flow_item_ipv6,
3079                                                   hdr) != 0);
3080
3081                         proto_header_size = sizeof(struct rte_ipv6_hdr);
3082
3083                         ethertypep = RTE_PTR_ADD(buf, ethertype_ofst);
3084                         *ethertypep = RTE_BE16(RTE_ETHER_TYPE_IPV6);
3085
3086                         next_proto_ofst = bounce_eh->size +
3087                                           offsetof(struct rte_ipv6_hdr, proto);
3088
3089                         ipv6 = (struct rte_ipv6_hdr *)buf_cur;
3090
3091                         exp_items = RTE_BIT64(RTE_FLOW_ITEM_TYPE_UDP);
3092                         break;
3093                 case RTE_FLOW_ITEM_TYPE_UDP:
3094                         SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ITEM_TYPE_UDP,
3095                                                exp_items);
3096                         RTE_BUILD_BUG_ON(offsetof(struct rte_flow_item_udp,
3097                                                   hdr) != 0);
3098
3099                         proto_header_size = sizeof(struct rte_udp_hdr);
3100
3101                         next_protop = RTE_PTR_ADD(buf, next_proto_ofst);
3102                         *next_protop = IPPROTO_UDP;
3103
3104                         udp = (struct rte_udp_hdr *)buf_cur;
3105
3106                         exp_items = RTE_BIT64(RTE_FLOW_ITEM_TYPE_VXLAN);
3107                         break;
3108                 case RTE_FLOW_ITEM_TYPE_VXLAN:
3109                         SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ITEM_TYPE_VXLAN,
3110                                                exp_items);
3111                         RTE_BUILD_BUG_ON(offsetof(struct rte_flow_item_vxlan,
3112                                                   hdr) != 0);
3113
3114                         proto_header_size = sizeof(struct rte_vxlan_hdr);
3115
3116                         vxlan = (struct rte_vxlan_hdr *)buf_cur;
3117
3118                         udp->dst_port = RTE_BE16(RTE_VXLAN_DEFAULT_PORT);
3119                         udp->dgram_len = RTE_BE16(sizeof(*udp) +
3120                                                   sizeof(*vxlan));
3121                         udp->dgram_cksum = 0;
3122
3123                         exp_items = 0;
3124                         break;
3125                 default:
3126                         return rte_flow_error_set(error, ENOTSUP,
3127                                         RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
3128                                         "Unknown item in the encap. header");
3129                 }
3130
3131                 if (bounce_eh->size + proto_header_size > bounce_eh->buf_size) {
3132                         return rte_flow_error_set(error, E2BIG,
3133                                         RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
3134                                         "The encap. header is too big");
3135                 }
3136
3137                 if ((proto_header_size & 1) != 0) {
3138                         return rte_flow_error_set(error, EINVAL,
3139                                         RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
3140                                         "Odd layer size in the encap. header");
3141                 }
3142
3143                 rte_memcpy(buf_cur, pattern->spec, proto_header_size);
3144                 bounce_eh->size += proto_header_size;
3145
3146                 parsed_item->item = pattern;
3147                 parsed_item->proto_header_size = proto_header_size;
3148                 ++nb_parsed_items;
3149         }
3150
3151         if (exp_items != 0) {
3152                 /* Parsing item VXLAN would have reset exp_items to 0. */
3153                 return rte_flow_error_set(error, ENOTSUP,
3154                                         RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
3155                                         "No item VXLAN in the encap. header");
3156         }
3157
3158         /* One of the pointers (ipv4, ipv6) refers to a dummy area. */
3159         ipv4->version_ihl = RTE_IPV4_VHL_DEF;
3160         ipv4->time_to_live = SFC_IPV4_TTL_DEF;
3161         ipv4->total_length = RTE_BE16(sizeof(*ipv4) + sizeof(*udp) +
3162                                       sizeof(*vxlan));
3163         /* The HW cannot compute this checksum. */
3164         ipv4->hdr_checksum = 0;
3165         ipv4->hdr_checksum = rte_ipv4_cksum(ipv4);
3166
3167         ipv6->vtc_flow = RTE_BE32(SFC_IPV6_VTC_FLOW_DEF);
3168         ipv6->hop_limits = SFC_IPV6_HOP_LIMITS_DEF;
3169         ipv6->payload_len = udp->dgram_len;
3170
3171         vxlan->vx_flags = RTE_BE32(SFC_VXLAN_FLAGS_DEF);
3172
3173         /* Take care of the masks. */
3174         sfc_mae_header_force_item_masks(buf, parsed_items, nb_parsed_items);
3175
3176         rc = efx_mae_action_set_populate_encap(spec);
3177         if (rc != 0) {
3178                 rc = rte_flow_error_set(error, rc, RTE_FLOW_ERROR_TYPE_ACTION,
3179                                 NULL, "failed to request action ENCAP");
3180         }
3181
3182         return rc;
3183 }
3184
3185 static int
3186 sfc_mae_rule_parse_action_mark(struct sfc_adapter *sa,
3187                                const struct rte_flow_action_mark *conf,
3188                                const struct sfc_flow_spec_mae *spec_mae,
3189                                efx_mae_actions_t *spec)
3190 {
3191         int rc;
3192
3193         if (spec_mae->ft_rule_type == SFC_FT_RULE_JUMP) {
3194                 /* Workaround. See sfc_flow_parse_rte_to_mae() */
3195         } else if (conf->id > SFC_FT_USER_MARK_MASK) {
3196                 sfc_err(sa, "the mark value is too large");
3197                 return EINVAL;
3198         }
3199
3200         rc = efx_mae_action_set_populate_mark(spec, conf->id);
3201         if (rc != 0)
3202                 sfc_err(sa, "failed to request action MARK: %s", strerror(rc));
3203
3204         return rc;
3205 }
3206
3207 static int
3208 sfc_mae_rule_parse_action_count(struct sfc_adapter *sa,
3209                                 const struct rte_flow_action_count *conf
3210                                         __rte_unused,
3211                                 efx_mae_actions_t *spec)
3212 {
3213         int rc;
3214
3215         if ((sa->counter_rxq.state & SFC_COUNTER_RXQ_INITIALIZED) == 0) {
3216                 sfc_err(sa,
3217                         "counter queue is not configured for COUNT action");
3218                 rc = EINVAL;
3219                 goto fail_counter_queue_uninit;
3220         }
3221
3222         if (sfc_get_service_lcore(SOCKET_ID_ANY) == RTE_MAX_LCORE) {
3223                 rc = EINVAL;
3224                 goto fail_no_service_core;
3225         }
3226
3227         rc = efx_mae_action_set_populate_count(spec);
3228         if (rc != 0) {
3229                 sfc_err(sa,
3230                         "failed to populate counters in MAE action set: %s",
3231                         rte_strerror(rc));
3232                 goto fail_populate_count;
3233         }
3234
3235         return 0;
3236
3237 fail_populate_count:
3238 fail_no_service_core:
3239 fail_counter_queue_uninit:
3240
3241         return rc;
3242 }
3243
3244 static int
3245 sfc_mae_rule_parse_action_phy_port(struct sfc_adapter *sa,
3246                                    const struct rte_flow_action_phy_port *conf,
3247                                    efx_mae_actions_t *spec)
3248 {
3249         efx_mport_sel_t mport;
3250         uint32_t phy_port;
3251         int rc;
3252
3253         if (conf->original != 0)
3254                 phy_port = efx_nic_cfg_get(sa->nic)->enc_assigned_port;
3255         else
3256                 phy_port = conf->index;
3257
3258         rc = efx_mae_mport_by_phy_port(phy_port, &mport);
3259         if (rc != 0) {
3260                 sfc_err(sa, "failed to convert phys. port ID %u to m-port selector: %s",
3261                         phy_port, strerror(rc));
3262                 return rc;
3263         }
3264
3265         rc = efx_mae_action_set_populate_deliver(spec, &mport);
3266         if (rc != 0) {
3267                 sfc_err(sa, "failed to request action DELIVER with m-port selector 0x%08x: %s",
3268                         mport.sel, strerror(rc));
3269         }
3270
3271         return rc;
3272 }
3273
3274 static int
3275 sfc_mae_rule_parse_action_pf_vf(struct sfc_adapter *sa,
3276                                 const struct rte_flow_action_vf *vf_conf,
3277                                 efx_mae_actions_t *spec)
3278 {
3279         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
3280         efx_mport_sel_t mport;
3281         uint32_t vf;
3282         int rc;
3283
3284         if (vf_conf == NULL)
3285                 vf = EFX_PCI_VF_INVALID;
3286         else if (vf_conf->original != 0)
3287                 vf = encp->enc_vf;
3288         else
3289                 vf = vf_conf->id;
3290
3291         rc = efx_mae_mport_by_pcie_function(encp->enc_pf, vf, &mport);
3292         if (rc != 0) {
3293                 sfc_err(sa, "failed to convert PF %u VF %d to m-port: %s",
3294                         encp->enc_pf, (vf != EFX_PCI_VF_INVALID) ? (int)vf : -1,
3295                         strerror(rc));
3296                 return rc;
3297         }
3298
3299         rc = efx_mae_action_set_populate_deliver(spec, &mport);
3300         if (rc != 0) {
3301                 sfc_err(sa, "failed to request action DELIVER with m-port selector 0x%08x: %s",
3302                         mport.sel, strerror(rc));
3303         }
3304
3305         return rc;
3306 }
3307
3308 static int
3309 sfc_mae_rule_parse_action_port_id(struct sfc_adapter *sa,
3310                                   const struct rte_flow_action_port_id *conf,
3311                                   efx_mae_actions_t *spec)
3312 {
3313         struct sfc_adapter_shared * const sas = sfc_sa2shared(sa);
3314         struct sfc_mae *mae = &sa->mae;
3315         efx_mport_sel_t mport;
3316         uint16_t port_id;
3317         int rc;
3318
3319         if (conf->id > UINT16_MAX)
3320                 return EOVERFLOW;
3321
3322         port_id = (conf->original != 0) ? sas->port_id : conf->id;
3323
3324         rc = sfc_mae_switch_port_by_ethdev(mae->switch_domain_id,
3325                                            port_id, &mport);
3326         if (rc != 0) {
3327                 sfc_err(sa, "failed to find MAE switch port SW entry for RTE ethdev port %u: %s",
3328                         port_id, strerror(rc));
3329                 return rc;
3330         }
3331
3332         rc = efx_mae_action_set_populate_deliver(spec, &mport);
3333         if (rc != 0) {
3334                 sfc_err(sa, "failed to request action DELIVER with m-port selector 0x%08x: %s",
3335                         mport.sel, strerror(rc));
3336         }
3337
3338         return rc;
3339 }
3340
3341 static const char * const action_names[] = {
3342         [RTE_FLOW_ACTION_TYPE_VXLAN_DECAP] = "VXLAN_DECAP",
3343         [RTE_FLOW_ACTION_TYPE_OF_POP_VLAN] = "OF_POP_VLAN",
3344         [RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN] = "OF_PUSH_VLAN",
3345         [RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID] = "OF_SET_VLAN_VID",
3346         [RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP] = "OF_SET_VLAN_PCP",
3347         [RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP] = "VXLAN_ENCAP",
3348         [RTE_FLOW_ACTION_TYPE_FLAG] = "FLAG",
3349         [RTE_FLOW_ACTION_TYPE_MARK] = "MARK",
3350         [RTE_FLOW_ACTION_TYPE_PHY_PORT] = "PHY_PORT",
3351         [RTE_FLOW_ACTION_TYPE_PF] = "PF",
3352         [RTE_FLOW_ACTION_TYPE_VF] = "VF",
3353         [RTE_FLOW_ACTION_TYPE_PORT_ID] = "PORT_ID",
3354         [RTE_FLOW_ACTION_TYPE_DROP] = "DROP",
3355         [RTE_FLOW_ACTION_TYPE_JUMP] = "JUMP",
3356 };
3357
3358 static int
3359 sfc_mae_rule_parse_action(struct sfc_adapter *sa,
3360                           const struct rte_flow_action *action,
3361                           const struct sfc_flow_spec_mae *spec_mae,
3362                           struct sfc_mae_actions_bundle *bundle,
3363                           efx_mae_actions_t *spec,
3364                           struct rte_flow_error *error)
3365 {
3366         const struct sfc_mae_outer_rule *outer_rule = spec_mae->outer_rule;
3367         const uint64_t rx_metadata = sa->negotiated_rx_metadata;
3368         bool custom_error = B_FALSE;
3369         int rc = 0;
3370
3371         switch (action->type) {
3372         case RTE_FLOW_ACTION_TYPE_VXLAN_DECAP:
3373                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_VXLAN_DECAP,
3374                                        bundle->actions_mask);
3375                 if (outer_rule == NULL ||
3376                     outer_rule->encap_type != EFX_TUNNEL_PROTOCOL_VXLAN)
3377                         rc = EINVAL;
3378                 else
3379                         rc = efx_mae_action_set_populate_decap(spec);
3380                 break;
3381         case RTE_FLOW_ACTION_TYPE_OF_POP_VLAN:
3382                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_OF_POP_VLAN,
3383                                        bundle->actions_mask);
3384                 rc = efx_mae_action_set_populate_vlan_pop(spec);
3385                 break;
3386         case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN:
3387                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN,
3388                                        bundle->actions_mask);
3389                 sfc_mae_rule_parse_action_of_push_vlan(action->conf, bundle);
3390                 break;
3391         case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID:
3392                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID,
3393                                        bundle->actions_mask);
3394                 sfc_mae_rule_parse_action_of_set_vlan_vid(action->conf, bundle);
3395                 break;
3396         case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP:
3397                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP,
3398                                        bundle->actions_mask);
3399                 sfc_mae_rule_parse_action_of_set_vlan_pcp(action->conf, bundle);
3400                 break;
3401         case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
3402                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP,
3403                                        bundle->actions_mask);
3404                 rc = sfc_mae_rule_parse_action_vxlan_encap(&sa->mae,
3405                                                            action->conf,
3406                                                            spec, error);
3407                 custom_error = B_TRUE;
3408                 break;
3409         case RTE_FLOW_ACTION_TYPE_COUNT:
3410                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_COUNT,
3411                                        bundle->actions_mask);
3412                 rc = sfc_mae_rule_parse_action_count(sa, action->conf, spec);
3413                 break;
3414         case RTE_FLOW_ACTION_TYPE_FLAG:
3415                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_FLAG,
3416                                        bundle->actions_mask);
3417                 if ((rx_metadata & RTE_ETH_RX_METADATA_USER_FLAG) != 0) {
3418                         rc = efx_mae_action_set_populate_flag(spec);
3419                 } else {
3420                         rc = rte_flow_error_set(error, ENOTSUP,
3421                                                 RTE_FLOW_ERROR_TYPE_ACTION,
3422                                                 action,
3423                                                 "flag delivery has not been negotiated");
3424                         custom_error = B_TRUE;
3425                 }
3426                 break;
3427         case RTE_FLOW_ACTION_TYPE_MARK:
3428                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_MARK,
3429                                        bundle->actions_mask);
3430                 if ((rx_metadata & RTE_ETH_RX_METADATA_USER_MARK) != 0 ||
3431                     spec_mae->ft_rule_type == SFC_FT_RULE_JUMP) {
3432                         rc = sfc_mae_rule_parse_action_mark(sa, action->conf,
3433                                                             spec_mae, spec);
3434                 } else {
3435                         rc = rte_flow_error_set(error, ENOTSUP,
3436                                                 RTE_FLOW_ERROR_TYPE_ACTION,
3437                                                 action,
3438                                                 "mark delivery has not been negotiated");
3439                         custom_error = B_TRUE;
3440                 }
3441                 break;
3442         case RTE_FLOW_ACTION_TYPE_PHY_PORT:
3443                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_PHY_PORT,
3444                                        bundle->actions_mask);
3445                 rc = sfc_mae_rule_parse_action_phy_port(sa, action->conf, spec);
3446                 break;
3447         case RTE_FLOW_ACTION_TYPE_PF:
3448                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_PF,
3449                                        bundle->actions_mask);
3450                 rc = sfc_mae_rule_parse_action_pf_vf(sa, NULL, spec);
3451                 break;
3452         case RTE_FLOW_ACTION_TYPE_VF:
3453                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_VF,
3454                                        bundle->actions_mask);
3455                 rc = sfc_mae_rule_parse_action_pf_vf(sa, action->conf, spec);
3456                 break;
3457         case RTE_FLOW_ACTION_TYPE_PORT_ID:
3458                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_PORT_ID,
3459                                        bundle->actions_mask);
3460                 rc = sfc_mae_rule_parse_action_port_id(sa, action->conf, spec);
3461                 break;
3462         case RTE_FLOW_ACTION_TYPE_DROP:
3463                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_DROP,
3464                                        bundle->actions_mask);
3465                 rc = efx_mae_action_set_populate_drop(spec);
3466                 break;
3467         case RTE_FLOW_ACTION_TYPE_JUMP:
3468                 if (spec_mae->ft_rule_type == SFC_FT_RULE_JUMP) {
3469                         /* Workaround. See sfc_flow_parse_rte_to_mae() */
3470                         break;
3471                 }
3472                 /* FALLTHROUGH */
3473         default:
3474                 return rte_flow_error_set(error, ENOTSUP,
3475                                 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
3476                                 "Unsupported action");
3477         }
3478
3479         if (rc == 0) {
3480                 bundle->actions_mask |= (1ULL << action->type);
3481         } else if (!custom_error) {
3482                 if (action->type < RTE_DIM(action_names)) {
3483                         const char *action_name = action_names[action->type];
3484
3485                         if (action_name != NULL) {
3486                                 sfc_err(sa, "action %s was rejected: %s",
3487                                         action_name, strerror(rc));
3488                         }
3489                 }
3490                 rc = rte_flow_error_set(error, rc, RTE_FLOW_ERROR_TYPE_ACTION,
3491                                 NULL, "Failed to request the action");
3492         }
3493
3494         return rc;
3495 }
3496
3497 static void
3498 sfc_mae_bounce_eh_invalidate(struct sfc_mae_bounce_eh *bounce_eh)
3499 {
3500         bounce_eh->type = EFX_TUNNEL_PROTOCOL_NONE;
3501 }
3502
3503 static int
3504 sfc_mae_process_encap_header(struct sfc_adapter *sa,
3505                              const struct sfc_mae_bounce_eh *bounce_eh,
3506                              struct sfc_mae_encap_header **encap_headerp)
3507 {
3508         if (bounce_eh->type == EFX_TUNNEL_PROTOCOL_NONE) {
3509                 encap_headerp = NULL;
3510                 return 0;
3511         }
3512
3513         *encap_headerp = sfc_mae_encap_header_attach(sa, bounce_eh);
3514         if (*encap_headerp != NULL)
3515                 return 0;
3516
3517         return sfc_mae_encap_header_add(sa, bounce_eh, encap_headerp);
3518 }
3519
3520 int
3521 sfc_mae_rule_parse_actions(struct sfc_adapter *sa,
3522                            const struct rte_flow_action actions[],
3523                            struct sfc_flow_spec_mae *spec_mae,
3524                            struct rte_flow_error *error)
3525 {
3526         struct sfc_mae_encap_header *encap_header = NULL;
3527         struct sfc_mae_actions_bundle bundle = {0};
3528         struct sfc_flow_tunnel *counter_ft = NULL;
3529         uint64_t *ft_group_hit_counter = NULL;
3530         const struct rte_flow_action *action;
3531         struct sfc_mae *mae = &sa->mae;
3532         unsigned int n_count = 0;
3533         efx_mae_actions_t *spec;
3534         int rc;
3535
3536         rte_errno = 0;
3537
3538         if (actions == NULL) {
3539                 return rte_flow_error_set(error, EINVAL,
3540                                 RTE_FLOW_ERROR_TYPE_ACTION_NUM, NULL,
3541                                 "NULL actions");
3542         }
3543
3544         rc = efx_mae_action_set_spec_init(sa->nic, &spec);
3545         if (rc != 0)
3546                 goto fail_action_set_spec_init;
3547
3548         for (action = actions;
3549              action->type != RTE_FLOW_ACTION_TYPE_END; ++action) {
3550                 if (action->type == RTE_FLOW_ACTION_TYPE_COUNT)
3551                         ++n_count;
3552         }
3553
3554         if (spec_mae->ft_rule_type == SFC_FT_RULE_GROUP) {
3555                 /* JUMP rules don't decapsulate packets. GROUP rules do. */
3556                 rc = efx_mae_action_set_populate_decap(spec);
3557                 if (rc != 0)
3558                         goto fail_enforce_ft_decap;
3559
3560                 if (n_count == 0 && sfc_mae_counter_stream_enabled(sa)) {
3561                         /*
3562                          * The user opted not to use action COUNT in this rule,
3563                          * but the counter should be enabled implicitly because
3564                          * packets hitting this rule contribute to the tunnel's
3565                          * total number of hits. See sfc_mae_counter_get().
3566                          */
3567                         rc = efx_mae_action_set_populate_count(spec);
3568                         if (rc != 0)
3569                                 goto fail_enforce_ft_count;
3570
3571                         n_count = 1;
3572                 }
3573         }
3574
3575         /* Cleanup after previous encap. header bounce buffer usage. */
3576         sfc_mae_bounce_eh_invalidate(&mae->bounce_eh);
3577
3578         for (action = actions;
3579              action->type != RTE_FLOW_ACTION_TYPE_END; ++action) {
3580                 rc = sfc_mae_actions_bundle_sync(action, &bundle, spec, error);
3581                 if (rc != 0)
3582                         goto fail_rule_parse_action;
3583
3584                 rc = sfc_mae_rule_parse_action(sa, action, spec_mae,
3585                                                &bundle, spec, error);
3586                 if (rc != 0)
3587                         goto fail_rule_parse_action;
3588         }
3589
3590         rc = sfc_mae_actions_bundle_sync(action, &bundle, spec, error);
3591         if (rc != 0)
3592                 goto fail_rule_parse_action;
3593
3594         rc = sfc_mae_process_encap_header(sa, &mae->bounce_eh, &encap_header);
3595         if (rc != 0)
3596                 goto fail_process_encap_header;
3597
3598         if (n_count > 1) {
3599                 rc = ENOTSUP;
3600                 sfc_err(sa, "too many count actions requested: %u", n_count);
3601                 goto fail_nb_count;
3602         }
3603
3604         switch (spec_mae->ft_rule_type) {
3605         case SFC_FT_RULE_NONE:
3606                 break;
3607         case SFC_FT_RULE_JUMP:
3608                 /* Workaround. See sfc_flow_parse_rte_to_mae() */
3609                 rc = sfc_mae_rule_parse_action_pf_vf(sa, NULL, spec);
3610                 if (rc != 0)
3611                         goto fail_workaround_jump_delivery;
3612
3613                 counter_ft = spec_mae->ft;
3614                 break;
3615         case SFC_FT_RULE_GROUP:
3616                 /*
3617                  * Packets that go to the rule's AR have FT mark set (from the
3618                  * JUMP rule OR's RECIRC_ID). Remove this mark in matching
3619                  * packets. The user may have provided their own action
3620                  * MARK above, so don't check the return value here.
3621                  */
3622                 (void)efx_mae_action_set_populate_mark(spec, 0);
3623
3624                 ft_group_hit_counter = &spec_mae->ft->group_hit_counter;
3625                 break;
3626         default:
3627                 SFC_ASSERT(B_FALSE);
3628         }
3629
3630         spec_mae->action_set = sfc_mae_action_set_attach(sa, encap_header,
3631                                                          n_count, spec);
3632         if (spec_mae->action_set != NULL) {
3633                 sfc_mae_encap_header_del(sa, encap_header);
3634                 efx_mae_action_set_spec_fini(sa->nic, spec);
3635                 return 0;
3636         }
3637
3638         rc = sfc_mae_action_set_add(sa, actions, spec, encap_header,
3639                                     ft_group_hit_counter, counter_ft, n_count,
3640                                     &spec_mae->action_set);
3641         if (rc != 0)
3642                 goto fail_action_set_add;
3643
3644         return 0;
3645
3646 fail_action_set_add:
3647 fail_workaround_jump_delivery:
3648 fail_nb_count:
3649         sfc_mae_encap_header_del(sa, encap_header);
3650
3651 fail_process_encap_header:
3652 fail_rule_parse_action:
3653         efx_mae_action_set_spec_fini(sa->nic, spec);
3654
3655 fail_enforce_ft_count:
3656 fail_enforce_ft_decap:
3657 fail_action_set_spec_init:
3658         if (rc > 0 && rte_errno == 0) {
3659                 rc = rte_flow_error_set(error, rc,
3660                         RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
3661                         NULL, "Failed to process the action");
3662         }
3663         return rc;
3664 }
3665
3666 static bool
3667 sfc_mae_rules_class_cmp(struct sfc_adapter *sa,
3668                         const efx_mae_match_spec_t *left,
3669                         const efx_mae_match_spec_t *right)
3670 {
3671         bool have_same_class;
3672         int rc;
3673
3674         rc = efx_mae_match_specs_class_cmp(sa->nic, left, right,
3675                                            &have_same_class);
3676
3677         return (rc == 0) ? have_same_class : false;
3678 }
3679
3680 static int
3681 sfc_mae_outer_rule_class_verify(struct sfc_adapter *sa,
3682                                 struct sfc_mae_outer_rule *rule)
3683 {
3684         struct sfc_mae_fw_rsrc *fw_rsrc = &rule->fw_rsrc;
3685         struct sfc_mae_outer_rule *entry;
3686         struct sfc_mae *mae = &sa->mae;
3687
3688         if (fw_rsrc->rule_id.id != EFX_MAE_RSRC_ID_INVALID) {
3689                 /* An active rule is reused. It's class is wittingly valid. */
3690                 return 0;
3691         }
3692
3693         TAILQ_FOREACH_REVERSE(entry, &mae->outer_rules,
3694                               sfc_mae_outer_rules, entries) {
3695                 const efx_mae_match_spec_t *left = entry->match_spec;
3696                 const efx_mae_match_spec_t *right = rule->match_spec;
3697
3698                 if (entry == rule)
3699                         continue;
3700
3701                 if (sfc_mae_rules_class_cmp(sa, left, right))
3702                         return 0;
3703         }
3704
3705         sfc_info(sa, "for now, the HW doesn't support rule validation, and HW "
3706                  "support for outer frame pattern items is not guaranteed; "
3707                  "other than that, the items are valid from SW standpoint");
3708         return 0;
3709 }
3710
3711 static int
3712 sfc_mae_action_rule_class_verify(struct sfc_adapter *sa,
3713                                  struct sfc_flow_spec_mae *spec)
3714 {
3715         const struct rte_flow *entry;
3716
3717         if (spec->match_spec == NULL)
3718                 return 0;
3719
3720         TAILQ_FOREACH_REVERSE(entry, &sa->flow_list, sfc_flow_list, entries) {
3721                 const struct sfc_flow_spec *entry_spec = &entry->spec;
3722                 const struct sfc_flow_spec_mae *es_mae = &entry_spec->mae;
3723                 const efx_mae_match_spec_t *left = es_mae->match_spec;
3724                 const efx_mae_match_spec_t *right = spec->match_spec;
3725
3726                 switch (entry_spec->type) {
3727                 case SFC_FLOW_SPEC_FILTER:
3728                         /* Ignore VNIC-level flows */
3729                         break;
3730                 case SFC_FLOW_SPEC_MAE:
3731                         if (sfc_mae_rules_class_cmp(sa, left, right))
3732                                 return 0;
3733                         break;
3734                 default:
3735                         SFC_ASSERT(false);
3736                 }
3737         }
3738
3739         sfc_info(sa, "for now, the HW doesn't support rule validation, and HW "
3740                  "support for inner frame pattern items is not guaranteed; "
3741                  "other than that, the items are valid from SW standpoint");
3742         return 0;
3743 }
3744
3745 /**
3746  * Confirm that a given flow can be accepted by the FW.
3747  *
3748  * @param sa
3749  *   Software adapter context
3750  * @param flow
3751  *   Flow to be verified
3752  * @return
3753  *   Zero on success and non-zero in the case of error.
3754  *   A special value of EAGAIN indicates that the adapter is
3755  *   not in started state. This state is compulsory because
3756  *   it only makes sense to compare the rule class of the flow
3757  *   being validated with classes of the active rules.
3758  *   Such classes are wittingly supported by the FW.
3759  */
3760 int
3761 sfc_mae_flow_verify(struct sfc_adapter *sa,
3762                     struct rte_flow *flow)
3763 {
3764         struct sfc_flow_spec *spec = &flow->spec;
3765         struct sfc_flow_spec_mae *spec_mae = &spec->mae;
3766         struct sfc_mae_outer_rule *outer_rule = spec_mae->outer_rule;
3767         int rc;
3768
3769         SFC_ASSERT(sfc_adapter_is_locked(sa));
3770
3771         if (sa->state != SFC_ETHDEV_STARTED)
3772                 return EAGAIN;
3773
3774         if (outer_rule != NULL) {
3775                 rc = sfc_mae_outer_rule_class_verify(sa, outer_rule);
3776                 if (rc != 0)
3777                         return rc;
3778         }
3779
3780         return sfc_mae_action_rule_class_verify(sa, spec_mae);
3781 }
3782
3783 int
3784 sfc_mae_flow_insert(struct sfc_adapter *sa,
3785                     struct rte_flow *flow)
3786 {
3787         struct sfc_flow_spec *spec = &flow->spec;
3788         struct sfc_flow_spec_mae *spec_mae = &spec->mae;
3789         struct sfc_mae_outer_rule *outer_rule = spec_mae->outer_rule;
3790         struct sfc_mae_action_set *action_set = spec_mae->action_set;
3791         struct sfc_mae_fw_rsrc *fw_rsrc;
3792         int rc;
3793
3794         SFC_ASSERT(spec_mae->rule_id.id == EFX_MAE_RSRC_ID_INVALID);
3795
3796         if (outer_rule != NULL) {
3797                 rc = sfc_mae_outer_rule_enable(sa, outer_rule,
3798                                                spec_mae->match_spec);
3799                 if (rc != 0)
3800                         goto fail_outer_rule_enable;
3801         }
3802
3803         if (spec_mae->ft_rule_type == SFC_FT_RULE_JUMP) {
3804                 spec_mae->ft->reset_jump_hit_counter =
3805                         spec_mae->ft->group_hit_counter;
3806         }
3807
3808         if (action_set == NULL) {
3809                 sfc_dbg(sa, "enabled flow=%p (no AR)", flow);
3810                 return 0;
3811         }
3812
3813         rc = sfc_mae_action_set_enable(sa, action_set);
3814         if (rc != 0)
3815                 goto fail_action_set_enable;
3816
3817         if (action_set->n_counters > 0) {
3818                 rc = sfc_mae_counter_start(sa);
3819                 if (rc != 0) {
3820                         sfc_err(sa, "failed to start MAE counters support: %s",
3821                                 rte_strerror(rc));
3822                         goto fail_mae_counter_start;
3823                 }
3824         }
3825
3826         fw_rsrc = &action_set->fw_rsrc;
3827
3828         rc = efx_mae_action_rule_insert(sa->nic, spec_mae->match_spec,
3829                                         NULL, &fw_rsrc->aset_id,
3830                                         &spec_mae->rule_id);
3831         if (rc != 0)
3832                 goto fail_action_rule_insert;
3833
3834         sfc_dbg(sa, "enabled flow=%p: AR_ID=0x%08x",
3835                 flow, spec_mae->rule_id.id);
3836
3837         return 0;
3838
3839 fail_action_rule_insert:
3840 fail_mae_counter_start:
3841         sfc_mae_action_set_disable(sa, action_set);
3842
3843 fail_action_set_enable:
3844         if (outer_rule != NULL)
3845                 sfc_mae_outer_rule_disable(sa, outer_rule);
3846
3847 fail_outer_rule_enable:
3848         return rc;
3849 }
3850
3851 int
3852 sfc_mae_flow_remove(struct sfc_adapter *sa,
3853                     struct rte_flow *flow)
3854 {
3855         struct sfc_flow_spec *spec = &flow->spec;
3856         struct sfc_flow_spec_mae *spec_mae = &spec->mae;
3857         struct sfc_mae_action_set *action_set = spec_mae->action_set;
3858         struct sfc_mae_outer_rule *outer_rule = spec_mae->outer_rule;
3859         int rc;
3860
3861         if (action_set == NULL) {
3862                 sfc_dbg(sa, "disabled flow=%p (no AR)", flow);
3863                 goto skip_action_rule;
3864         }
3865
3866         SFC_ASSERT(spec_mae->rule_id.id != EFX_MAE_RSRC_ID_INVALID);
3867
3868         rc = efx_mae_action_rule_remove(sa->nic, &spec_mae->rule_id);
3869         if (rc != 0) {
3870                 sfc_err(sa, "failed to disable flow=%p with AR_ID=0x%08x: %s",
3871                         flow, spec_mae->rule_id.id, strerror(rc));
3872         }
3873         sfc_dbg(sa, "disabled flow=%p with AR_ID=0x%08x",
3874                 flow, spec_mae->rule_id.id);
3875         spec_mae->rule_id.id = EFX_MAE_RSRC_ID_INVALID;
3876
3877         sfc_mae_action_set_disable(sa, action_set);
3878
3879 skip_action_rule:
3880         if (outer_rule != NULL)
3881                 sfc_mae_outer_rule_disable(sa, outer_rule);
3882
3883         return 0;
3884 }
3885
3886 static int
3887 sfc_mae_query_counter(struct sfc_adapter *sa,
3888                       struct sfc_flow_spec_mae *spec,
3889                       const struct rte_flow_action *action,
3890                       struct rte_flow_query_count *data,
3891                       struct rte_flow_error *error)
3892 {
3893         struct sfc_mae_action_set *action_set = spec->action_set;
3894         const struct rte_flow_action_count *conf = action->conf;
3895         unsigned int i;
3896         int rc;
3897
3898         if (action_set == NULL || action_set->n_counters == 0) {
3899                 return rte_flow_error_set(error, EINVAL,
3900                         RTE_FLOW_ERROR_TYPE_ACTION, action,
3901                         "Queried flow rule does not have count actions");
3902         }
3903
3904         for (i = 0; i < action_set->n_counters; i++) {
3905                 /*
3906                  * Get the first available counter of the flow rule if
3907                  * counter ID is not specified, provided that this
3908                  * counter is not an automatic (implicit) one.
3909                  */
3910                 if (conf != NULL && action_set->counters[i].rte_id != conf->id)
3911                         continue;
3912
3913                 rc = sfc_mae_counter_get(&sa->mae.counter_registry.counters,
3914                                          &action_set->counters[i], data);
3915                 if (rc != 0) {
3916                         return rte_flow_error_set(error, EINVAL,
3917                                 RTE_FLOW_ERROR_TYPE_ACTION, action,
3918                                 "Queried flow rule counter action is invalid");
3919                 }
3920
3921                 return 0;
3922         }
3923
3924         return rte_flow_error_set(error, ENOENT,
3925                                   RTE_FLOW_ERROR_TYPE_ACTION, action,
3926                                   "no such flow rule action or such count ID");
3927 }
3928
3929 int
3930 sfc_mae_flow_query(struct rte_eth_dev *dev,
3931                    struct rte_flow *flow,
3932                    const struct rte_flow_action *action,
3933                    void *data,
3934                    struct rte_flow_error *error)
3935 {
3936         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
3937         struct sfc_flow_spec *spec = &flow->spec;
3938         struct sfc_flow_spec_mae *spec_mae = &spec->mae;
3939
3940         switch (action->type) {
3941         case RTE_FLOW_ACTION_TYPE_COUNT:
3942                 return sfc_mae_query_counter(sa, spec_mae, action,
3943                                              data, error);
3944         default:
3945                 return rte_flow_error_set(error, ENOTSUP,
3946                         RTE_FLOW_ERROR_TYPE_ACTION, NULL,
3947                         "Query for action of this type is not supported");
3948         }
3949 }
3950
3951 int
3952 sfc_mae_switchdev_init(struct sfc_adapter *sa)
3953 {
3954         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
3955         struct sfc_mae *mae = &sa->mae;
3956         efx_mport_sel_t pf;
3957         efx_mport_sel_t phy;
3958         int rc;
3959
3960         sfc_log_init(sa, "entry");
3961
3962         if (!sa->switchdev) {
3963                 sfc_log_init(sa, "switchdev is not enabled - skip");
3964                 return 0;
3965         }
3966
3967         if (mae->status != SFC_MAE_STATUS_SUPPORTED) {
3968                 rc = ENOTSUP;
3969                 sfc_err(sa, "failed to init switchdev - no MAE support");
3970                 goto fail_no_mae;
3971         }
3972
3973         rc = efx_mae_mport_by_pcie_function(encp->enc_pf, EFX_PCI_VF_INVALID,
3974                                             &pf);
3975         if (rc != 0) {
3976                 sfc_err(sa, "failed get PF mport");
3977                 goto fail_pf_get;
3978         }
3979
3980         rc = efx_mae_mport_by_phy_port(encp->enc_assigned_port, &phy);
3981         if (rc != 0) {
3982                 sfc_err(sa, "failed get PHY mport");
3983                 goto fail_phy_get;
3984         }
3985
3986         rc = sfc_mae_rule_add_mport_match_deliver(sa, &pf, &phy,
3987                         SFC_MAE_RULE_PRIO_LOWEST,
3988                         &mae->switchdev_rule_pf_to_ext);
3989         if (rc != 0) {
3990                 sfc_err(sa, "failed add MAE rule to forward from PF to PHY");
3991                 goto fail_pf_add;
3992         }
3993
3994         rc = sfc_mae_rule_add_mport_match_deliver(sa, &phy, &pf,
3995                         SFC_MAE_RULE_PRIO_LOWEST,
3996                         &mae->switchdev_rule_ext_to_pf);
3997         if (rc != 0) {
3998                 sfc_err(sa, "failed add MAE rule to forward from PHY to PF");
3999                 goto fail_phy_add;
4000         }
4001
4002         sfc_log_init(sa, "done");
4003
4004         return 0;
4005
4006 fail_phy_add:
4007         sfc_mae_rule_del(sa, mae->switchdev_rule_pf_to_ext);
4008
4009 fail_pf_add:
4010 fail_phy_get:
4011 fail_pf_get:
4012 fail_no_mae:
4013         sfc_log_init(sa, "failed: %s", rte_strerror(rc));
4014         return rc;
4015 }
4016
4017 void
4018 sfc_mae_switchdev_fini(struct sfc_adapter *sa)
4019 {
4020         struct sfc_mae *mae = &sa->mae;
4021
4022         if (!sa->switchdev)
4023                 return;
4024
4025         sfc_mae_rule_del(sa, mae->switchdev_rule_pf_to_ext);
4026         sfc_mae_rule_del(sa, mae->switchdev_rule_ext_to_pf);
4027 }