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_ethdev_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_assign_entity_mport(struct sfc_adapter *sa,
  37                             efx_mport_sel_t *mportp)
  38 {
  39         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
  40         int rc = 0;
  41
  42         if (encp->enc_mae_admin) {
  43                 /*
  44                  * This ethdev sits on MAE admin PF. The represented
  45                  * entity is the network port assigned to that PF.
  46                  */
  47                 rc = efx_mae_mport_by_phy_port(encp->enc_assigned_port, mportp);
  48         } else {
  49                 /*
  50                  * This ethdev sits on unprivileged PF / VF. The entity
  51                  * represented by the ethdev can change dynamically
  52                  * as MAE admin changes default traffic rules.
  53                  *
  54                  * For the sake of simplicity, do not fill in the m-port
  55                  * and assume that flow rules should not be allowed to
  56                  * reference the entity represented by this ethdev.
  57                  */
  58                 efx_mae_mport_invalid(mportp);
  59         }
  60
  61         return rc;
  62 }
  63
  64 static int
  65 sfc_mae_counter_registry_init(struct sfc_mae_counter_registry *registry,
  66                               uint32_t nb_counters_max)
  67 {
  68         return sfc_mae_counters_init(&registry->counters, nb_counters_max);
  69 }
  70
  71 static void
  72 sfc_mae_counter_registry_fini(struct sfc_mae_counter_registry *registry)
  73 {
  74         sfc_mae_counters_fini(&registry->counters);
  75 }
  76
  77 static int
  78 sfc_mae_internal_rule_find_empty_slot(struct sfc_adapter *sa,
  79                                       struct sfc_mae_rule **rule)
  80 {
  81         struct sfc_mae *mae = &sa->mae;
  82         struct sfc_mae_internal_rules *internal_rules = &mae->internal_rules;
  83         unsigned int entry;
  84         int rc;
  85
  86         for (entry = 0; entry < SFC_MAE_NB_RULES_MAX; entry++) {
  87                 if (internal_rules->rules[entry].spec == NULL)
  88                         break;
  89         }
  90
  91         if (entry == SFC_MAE_NB_RULES_MAX) {
  92                 rc = ENOSPC;
  93                 sfc_err(sa, "failed too many rules (%u rules used)", entry);
  94                 goto fail_too_many_rules;
  95         }
  96
  97         *rule = &internal_rules->rules[entry];
  98
  99         return 0;
 100
 101 fail_too_many_rules:
 102         return rc;
 103 }
 104
 105 int
 106 sfc_mae_rule_add_mport_match_deliver(struct sfc_adapter *sa,
 107                                      const efx_mport_sel_t *mport_match,
 108                                      const efx_mport_sel_t *mport_deliver,
 109                                      int prio, struct sfc_mae_rule **rulep)
 110 {
 111         struct sfc_mae *mae = &sa->mae;
 112         struct sfc_mae_rule *rule;
 113         int rc;
 114
 115         sfc_log_init(sa, "entry");
 116
 117         if (prio > 0 && (unsigned int)prio >= mae->nb_action_rule_prios_max) {
 118                 rc = EINVAL;
 119                 sfc_err(sa, "failed: invalid priority %d (max %u)", prio,
 120                         mae->nb_action_rule_prios_max);
 121                 goto fail_invalid_prio;
 122         }
 123         if (prio < 0)
 124                 prio = mae->nb_action_rule_prios_max - 1;
 125
 126         rc = sfc_mae_internal_rule_find_empty_slot(sa, &rule);
 127         if (rc != 0)
 128                 goto fail_find_empty_slot;
 129
 130         sfc_log_init(sa, "init MAE match spec");
 131         rc = efx_mae_match_spec_init(sa->nic, EFX_MAE_RULE_ACTION,
 132                                      (uint32_t)prio, &rule->spec);
 133         if (rc != 0) {
 134                 sfc_err(sa, "failed to init MAE match spec");
 135                 goto fail_match_init;
 136         }
 137
 138         rc = efx_mae_match_spec_mport_set(rule->spec, mport_match, NULL);
 139         if (rc != 0) {
 140                 sfc_err(sa, "failed to get MAE match mport selector");
 141                 goto fail_mport_set;
 142         }
 143
 144         rc = efx_mae_action_set_spec_init(sa->nic, &rule->actions);
 145         if (rc != 0) {
 146                 sfc_err(sa, "failed to init MAE action set");
 147                 goto fail_action_init;
 148         }
 149
 150         rc = efx_mae_action_set_populate_deliver(rule->actions,
 151                                                  mport_deliver);
 152         if (rc != 0) {
 153                 sfc_err(sa, "failed to populate deliver action");
 154                 goto fail_populate_deliver;
 155         }
 156
 157         rc = efx_mae_action_set_alloc(sa->nic, rule->actions,
 158                                       &rule->action_set);
 159         if (rc != 0) {
 160                 sfc_err(sa, "failed to allocate action set");
 161                 goto fail_action_set_alloc;
 162         }
 163
 164         rc = efx_mae_action_rule_insert(sa->nic, rule->spec, NULL,
 165                                         &rule->action_set,
 166                                         &rule->rule_id);
 167         if (rc != 0) {
 168                 sfc_err(sa, "failed to insert action rule");
 169                 goto fail_rule_insert;
 170         }
 171
 172         *rulep = rule;
 173
 174         sfc_log_init(sa, "done");
 175
 176         return 0;
 177
 178 fail_rule_insert:
 179         efx_mae_action_set_free(sa->nic, &rule->action_set);
 180
 181 fail_action_set_alloc:
 182 fail_populate_deliver:
 183         efx_mae_action_set_spec_fini(sa->nic, rule->actions);
 184
 185 fail_action_init:
 186 fail_mport_set:
 187         efx_mae_match_spec_fini(sa->nic, rule->spec);
 188
 189 fail_match_init:
 190 fail_find_empty_slot:
 191 fail_invalid_prio:
 192         sfc_log_init(sa, "failed: %s", rte_strerror(rc));
 193         return rc;
 194 }
 195
 196 void
 197 sfc_mae_rule_del(struct sfc_adapter *sa, struct sfc_mae_rule *rule)
 198 {
 199         if (rule == NULL || rule->spec == NULL)
 200                 return;
 201
 202         efx_mae_action_rule_remove(sa->nic, &rule->rule_id);
 203         efx_mae_action_set_free(sa->nic, &rule->action_set);
 204         efx_mae_action_set_spec_fini(sa->nic, rule->actions);
 205         efx_mae_match_spec_fini(sa->nic, rule->spec);
 206
 207         rule->spec = NULL;
 208 }
 209
 210 int
 211 sfc_mae_attach(struct sfc_adapter *sa)
 212 {
 213         struct sfc_adapter_shared * const sas = sfc_sa2shared(sa);
 214         struct sfc_mae_switch_port_request switch_port_request = {0};
 215         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 216         efx_mport_sel_t ethdev_mport;
 217         efx_mport_sel_t entity_mport;
 218         struct sfc_mae *mae = &sa->mae;
 219         struct sfc_mae_bounce_eh *bounce_eh = &mae->bounce_eh;
 220         efx_mae_limits_t limits;
 221         int rc;
 222
 223         sfc_log_init(sa, "entry");
 224
 225         if (!encp->enc_mae_supported) {
 226                 mae->status = SFC_MAE_STATUS_UNSUPPORTED;
 227                 return 0;
 228         }
 229
 230         if (encp->enc_mae_admin) {
 231                 sfc_log_init(sa, "init MAE");
 232                 rc = efx_mae_init(sa->nic);
 233                 if (rc != 0)
 234                         goto fail_mae_init;
 235
 236                 sfc_log_init(sa, "get MAE limits");
 237                 rc = efx_mae_get_limits(sa->nic, &limits);
 238                 if (rc != 0)
 239                         goto fail_mae_get_limits;
 240
 241                 sfc_log_init(sa, "init MAE counter registry");
 242                 rc = sfc_mae_counter_registry_init(&mae->counter_registry,
 243                                                    limits.eml_max_n_counters);
 244                 if (rc != 0) {
 245                         sfc_err(sa, "failed to init MAE counters registry for %u entries: %s",
 246                                 limits.eml_max_n_counters, rte_strerror(rc));
 247                         goto fail_counter_registry_init;
 248                 }
 249         }
 250
 251         sfc_log_init(sa, "assign ethdev MPORT");
 252         rc = sfc_mae_assign_ethdev_mport(sa, &ethdev_mport);
 253         if (rc != 0)
 254                 goto fail_mae_assign_ethdev_mport;
 255
 256         sfc_log_init(sa, "assign entity MPORT");
 257         rc = sfc_mae_assign_entity_mport(sa, &entity_mport);
 258         if (rc != 0)
 259                 goto fail_mae_assign_entity_mport;
 260
 261         sfc_log_init(sa, "assign RTE switch domain");
 262         rc = sfc_mae_assign_switch_domain(sa, &mae->switch_domain_id);
 263         if (rc != 0)
 264                 goto fail_mae_assign_switch_domain;
 265
 266         sfc_log_init(sa, "assign RTE switch port");
 267         switch_port_request.type = SFC_MAE_SWITCH_PORT_INDEPENDENT;
 268         switch_port_request.ethdev_mportp = &ethdev_mport;
 269         switch_port_request.entity_mportp = &entity_mport;
 270         switch_port_request.ethdev_port_id = sas->port_id;
 271         switch_port_request.port_data.indep.mae_admin =
 272                 encp->enc_mae_admin == B_TRUE;
 273         rc = sfc_mae_assign_switch_port(mae->switch_domain_id,
 274                                         &switch_port_request,
 275                                         &mae->switch_port_id);
 276         if (rc != 0)
 277                 goto fail_mae_assign_switch_port;
 278
 279         if (encp->enc_mae_admin) {
 280                 sfc_log_init(sa, "allocate encap. header bounce buffer");
 281                 bounce_eh->buf_size = limits.eml_encap_header_size_limit;
 282                 bounce_eh->buf = rte_malloc("sfc_mae_bounce_eh",
 283                                             bounce_eh->buf_size, 0);
 284                 if (bounce_eh->buf == NULL)
 285                         goto fail_mae_alloc_bounce_eh;
 286
 287                 mae->nb_outer_rule_prios_max = limits.eml_max_n_outer_prios;
 288                 mae->nb_action_rule_prios_max = limits.eml_max_n_action_prios;
 289                 mae->encap_types_supported = limits.eml_encap_types_supported;
 290         }
 291
 292         TAILQ_INIT(&mae->outer_rules);
 293         TAILQ_INIT(&mae->mac_addrs);
 294         TAILQ_INIT(&mae->encap_headers);
 295         TAILQ_INIT(&mae->action_sets);
 296
 297         if (encp->enc_mae_admin)
 298                 mae->status = SFC_MAE_STATUS_ADMIN;
 299         else
 300                 mae->status = SFC_MAE_STATUS_SUPPORTED;
 301
 302         sfc_log_init(sa, "done");
 303
 304         return 0;
 305
 306 fail_mae_alloc_bounce_eh:
 307 fail_mae_assign_switch_port:
 308 fail_mae_assign_switch_domain:
 309 fail_mae_assign_entity_mport:
 310 fail_mae_assign_ethdev_mport:
 311         if (encp->enc_mae_admin)
 312                 sfc_mae_counter_registry_fini(&mae->counter_registry);
 313
 314 fail_counter_registry_init:
 315 fail_mae_get_limits:
 316         if (encp->enc_mae_admin)
 317                 efx_mae_fini(sa->nic);
 318
 319 fail_mae_init:
 320         sfc_log_init(sa, "failed %d", rc);
 321
 322         return rc;
 323 }
 324
 325 void
 326 sfc_mae_detach(struct sfc_adapter *sa)
 327 {
 328         struct sfc_mae *mae = &sa->mae;
 329         enum sfc_mae_status status_prev = mae->status;
 330
 331         sfc_log_init(sa, "entry");
 332
 333         mae->nb_action_rule_prios_max = 0;
 334         mae->status = SFC_MAE_STATUS_UNKNOWN;
 335
 336         if (status_prev != SFC_MAE_STATUS_ADMIN)
 337                 return;
 338
 339         rte_free(mae->bounce_eh.buf);
 340         sfc_mae_counter_registry_fini(&mae->counter_registry);
 341
 342         efx_mae_fini(sa->nic);
 343
 344         sfc_log_init(sa, "done");
 345 }
 346
 347 static struct sfc_mae_outer_rule *
 348 sfc_mae_outer_rule_attach(struct sfc_adapter *sa,
 349                           const efx_mae_match_spec_t *match_spec,
 350                           efx_tunnel_protocol_t encap_type)
 351 {
 352         struct sfc_mae_outer_rule *rule;
 353         struct sfc_mae *mae = &sa->mae;
 354
 355         SFC_ASSERT(sfc_adapter_is_locked(sa));
 356
 357         TAILQ_FOREACH(rule, &mae->outer_rules, entries) {
 358                 if (efx_mae_match_specs_equal(rule->match_spec, match_spec) &&
 359                     rule->encap_type == encap_type) {
 360                         sfc_dbg(sa, "attaching to outer_rule=%p", rule);
 361                         ++(rule->refcnt);
 362                         return rule;
 363                 }
 364         }
 365
 366         return NULL;
 367 }
 368
 369 static int
 370 sfc_mae_outer_rule_add(struct sfc_adapter *sa,
 371                        efx_mae_match_spec_t *match_spec,
 372                        efx_tunnel_protocol_t encap_type,
 373                        struct sfc_mae_outer_rule **rulep)
 374 {
 375         struct sfc_mae_outer_rule *rule;
 376         struct sfc_mae *mae = &sa->mae;
 377
 378         SFC_ASSERT(sfc_adapter_is_locked(sa));
 379
 380         rule = rte_zmalloc("sfc_mae_outer_rule", sizeof(*rule), 0);
 381         if (rule == NULL)
 382                 return ENOMEM;
 383
 384         rule->refcnt = 1;
 385         rule->match_spec = match_spec;
 386         rule->encap_type = encap_type;
 387
 388         rule->fw_rsrc.rule_id.id = EFX_MAE_RSRC_ID_INVALID;
 389
 390         TAILQ_INSERT_TAIL(&mae->outer_rules, rule, entries);
 391
 392         *rulep = rule;
 393
 394         sfc_dbg(sa, "added outer_rule=%p", rule);
 395
 396         return 0;
 397 }
 398
 399 static void
 400 sfc_mae_outer_rule_del(struct sfc_adapter *sa,
 401                        struct sfc_mae_outer_rule *rule)
 402 {
 403         struct sfc_mae *mae = &sa->mae;
 404
 405         SFC_ASSERT(sfc_adapter_is_locked(sa));
 406         SFC_ASSERT(rule->refcnt != 0);
 407
 408         --(rule->refcnt);
 409
 410         if (rule->refcnt != 0)
 411                 return;
 412
 413         if (rule->fw_rsrc.rule_id.id != EFX_MAE_RSRC_ID_INVALID ||
 414             rule->fw_rsrc.refcnt != 0) {
 415                 sfc_err(sa, "deleting outer_rule=%p abandons its FW resource: OR_ID=0x%08x, refcnt=%u",
 416                         rule, rule->fw_rsrc.rule_id.id, rule->fw_rsrc.refcnt);
 417         }
 418
 419         efx_mae_match_spec_fini(sa->nic, rule->match_spec);
 420
 421         TAILQ_REMOVE(&mae->outer_rules, rule, entries);
 422         rte_free(rule);
 423
 424         sfc_dbg(sa, "deleted outer_rule=%p", rule);
 425 }
 426
 427 static int
 428 sfc_mae_outer_rule_enable(struct sfc_adapter *sa,
 429                           struct sfc_mae_outer_rule *rule,
 430                           efx_mae_match_spec_t *match_spec_action)
 431 {
 432         struct sfc_mae_fw_rsrc *fw_rsrc = &rule->fw_rsrc;
 433         int rc;
 434
 435         SFC_ASSERT(sfc_adapter_is_locked(sa));
 436
 437         if (fw_rsrc->refcnt == 0) {
 438                 SFC_ASSERT(fw_rsrc->rule_id.id == EFX_MAE_RSRC_ID_INVALID);
 439                 SFC_ASSERT(rule->match_spec != NULL);
 440
 441                 rc = efx_mae_outer_rule_insert(sa->nic, rule->match_spec,
 442                                                rule->encap_type,
 443                                                &fw_rsrc->rule_id);
 444                 if (rc != 0) {
 445                         sfc_err(sa, "failed to enable outer_rule=%p: %s",
 446                                 rule, strerror(rc));
 447                         return rc;
 448                 }
 449         }
 450
 451         if (match_spec_action == NULL)
 452                 goto skip_action_rule;
 453
 454         rc = efx_mae_match_spec_outer_rule_id_set(match_spec_action,
 455                                                   &fw_rsrc->rule_id);
 456         if (rc != 0) {
 457                 if (fw_rsrc->refcnt == 0) {
 458                         (void)efx_mae_outer_rule_remove(sa->nic,
 459                                                         &fw_rsrc->rule_id);
 460                         fw_rsrc->rule_id.id = EFX_MAE_RSRC_ID_INVALID;
 461                 }
 462
 463                 sfc_err(sa, "can't match on outer rule ID: %s", strerror(rc));
 464
 465                 return rc;
 466         }
 467
 468 skip_action_rule:
 469         if (fw_rsrc->refcnt == 0) {
 470                 sfc_dbg(sa, "enabled outer_rule=%p: OR_ID=0x%08x",
 471                         rule, fw_rsrc->rule_id.id);
 472         }
 473
 474         ++(fw_rsrc->refcnt);
 475
 476         return 0;
 477 }
 478
 479 static void
 480 sfc_mae_outer_rule_disable(struct sfc_adapter *sa,
 481                            struct sfc_mae_outer_rule *rule)
 482 {
 483         struct sfc_mae_fw_rsrc *fw_rsrc = &rule->fw_rsrc;
 484         int rc;
 485
 486         SFC_ASSERT(sfc_adapter_is_locked(sa));
 487
 488         if (fw_rsrc->rule_id.id == EFX_MAE_RSRC_ID_INVALID ||
 489             fw_rsrc->refcnt == 0) {
 490                 sfc_err(sa, "failed to disable outer_rule=%p: already disabled; OR_ID=0x%08x, refcnt=%u",
 491                         rule, fw_rsrc->rule_id.id, fw_rsrc->refcnt);
 492                 return;
 493         }
 494
 495         if (fw_rsrc->refcnt == 1) {
 496                 rc = efx_mae_outer_rule_remove(sa->nic, &fw_rsrc->rule_id);
 497                 if (rc == 0) {
 498                         sfc_dbg(sa, "disabled outer_rule=%p with OR_ID=0x%08x",
 499                                 rule, fw_rsrc->rule_id.id);
 500                 } else {
 501                         sfc_err(sa, "failed to disable outer_rule=%p with OR_ID=0x%08x: %s",
 502                                 rule, fw_rsrc->rule_id.id, strerror(rc));
 503                 }
 504                 fw_rsrc->rule_id.id = EFX_MAE_RSRC_ID_INVALID;
 505         }
 506
 507         --(fw_rsrc->refcnt);
 508 }
 509
 510 static struct sfc_mae_mac_addr *
 511 sfc_mae_mac_addr_attach(struct sfc_adapter *sa,
 512                         const uint8_t addr_bytes[EFX_MAC_ADDR_LEN])
 513 {
 514         struct sfc_mae_mac_addr *mac_addr;
 515         struct sfc_mae *mae = &sa->mae;
 516
 517         SFC_ASSERT(sfc_adapter_is_locked(sa));
 518
 519         TAILQ_FOREACH(mac_addr, &mae->mac_addrs, entries) {
 520                 if (memcmp(mac_addr->addr_bytes, addr_bytes,
 521                            EFX_MAC_ADDR_LEN) == 0) {
 522                         sfc_dbg(sa, "attaching to mac_addr=%p", mac_addr);
 523                         ++(mac_addr->refcnt);
 524                         return mac_addr;
 525                 }
 526         }
 527
 528         return NULL;
 529 }
 530
 531 static int
 532 sfc_mae_mac_addr_add(struct sfc_adapter *sa,
 533                      const uint8_t addr_bytes[EFX_MAC_ADDR_LEN],
 534                      struct sfc_mae_mac_addr **mac_addrp)
 535 {
 536         struct sfc_mae_mac_addr *mac_addr;
 537         struct sfc_mae *mae = &sa->mae;
 538
 539         SFC_ASSERT(sfc_adapter_is_locked(sa));
 540
 541         mac_addr = rte_zmalloc("sfc_mae_mac_addr", sizeof(*mac_addr), 0);
 542         if (mac_addr == NULL)
 543                 return ENOMEM;
 544
 545         rte_memcpy(mac_addr->addr_bytes, addr_bytes, EFX_MAC_ADDR_LEN);
 546
 547         mac_addr->refcnt = 1;
 548         mac_addr->fw_rsrc.mac_id.id = EFX_MAE_RSRC_ID_INVALID;
 549
 550         TAILQ_INSERT_TAIL(&mae->mac_addrs, mac_addr, entries);
 551
 552         *mac_addrp = mac_addr;
 553
 554         sfc_dbg(sa, "added mac_addr=%p", mac_addr);
 555
 556         return 0;
 557 }
 558
 559 static void
 560 sfc_mae_mac_addr_del(struct sfc_adapter *sa, struct sfc_mae_mac_addr *mac_addr)
 561 {
 562         struct sfc_mae *mae = &sa->mae;
 563
 564         if (mac_addr == NULL)
 565                 return;
 566
 567         SFC_ASSERT(sfc_adapter_is_locked(sa));
 568         SFC_ASSERT(mac_addr->refcnt != 0);
 569
 570         --(mac_addr->refcnt);
 571
 572         if (mac_addr->refcnt != 0)
 573                 return;
 574
 575         if (mac_addr->fw_rsrc.mac_id.id != EFX_MAE_RSRC_ID_INVALID ||
 576             mac_addr->fw_rsrc.refcnt != 0) {
 577                 sfc_err(sa, "deleting mac_addr=%p abandons its FW resource: MAC_ID=0x%08x, refcnt=%u",
 578                         mac_addr, mac_addr->fw_rsrc.mac_id.id,
 579                         mac_addr->fw_rsrc.refcnt);
 580         }
 581
 582         TAILQ_REMOVE(&mae->mac_addrs, mac_addr, entries);
 583         rte_free(mac_addr);
 584
 585         sfc_dbg(sa, "deleted mac_addr=%p", mac_addr);
 586 }
 587
 588 enum sfc_mae_mac_addr_type {
 589         SFC_MAE_MAC_ADDR_DST,
 590         SFC_MAE_MAC_ADDR_SRC
 591 };
 592
 593 static int
 594 sfc_mae_mac_addr_enable(struct sfc_adapter *sa,
 595                         struct sfc_mae_mac_addr *mac_addr,
 596                         enum sfc_mae_mac_addr_type type,
 597                         efx_mae_actions_t *aset_spec)
 598 {
 599         struct sfc_mae_fw_rsrc *fw_rsrc;
 600         int rc = 0;
 601
 602         if (mac_addr == NULL)
 603                 return 0;
 604
 605         SFC_ASSERT(sfc_adapter_is_locked(sa));
 606
 607         fw_rsrc = &mac_addr->fw_rsrc;
 608
 609         if (fw_rsrc->refcnt == 0) {
 610                 SFC_ASSERT(fw_rsrc->mac_id.id == EFX_MAE_RSRC_ID_INVALID);
 611
 612                 rc = efx_mae_mac_addr_alloc(sa->nic, mac_addr->addr_bytes,
 613                                             &fw_rsrc->mac_id);
 614                 if (rc != 0) {
 615                         sfc_err(sa, "failed to enable mac_addr=%p: %s",
 616                                 mac_addr, strerror(rc));
 617                         return rc;
 618                 }
 619         }
 620
 621         switch (type) {
 622         case SFC_MAE_MAC_ADDR_DST:
 623                 rc = efx_mae_action_set_fill_in_dst_mac_id(aset_spec,
 624                                                            &fw_rsrc->mac_id);
 625                 break;
 626         case SFC_MAE_MAC_ADDR_SRC:
 627                 rc = efx_mae_action_set_fill_in_src_mac_id(aset_spec,
 628                                                            &fw_rsrc->mac_id);
 629                 break;
 630         default:
 631                 rc = EINVAL;
 632                 break;
 633         }
 634
 635         if (rc != 0) {
 636                 if (fw_rsrc->refcnt == 0) {
 637                         (void)efx_mae_mac_addr_free(sa->nic, &fw_rsrc->mac_id);
 638                         fw_rsrc->mac_id.id = EFX_MAE_RSRC_ID_INVALID;
 639                 }
 640
 641                 sfc_err(sa, "cannot fill in MAC address entry ID: %s",
 642                         strerror(rc));
 643
 644                 return rc;
 645         }
 646
 647         if (fw_rsrc->refcnt == 0) {
 648                 sfc_dbg(sa, "enabled mac_addr=%p: MAC_ID=0x%08x",
 649                         mac_addr, fw_rsrc->mac_id.id);
 650         }
 651
 652         ++(fw_rsrc->refcnt);
 653
 654         return 0;
 655 }
 656
 657 static void
 658 sfc_mae_mac_addr_disable(struct sfc_adapter *sa,
 659                          struct sfc_mae_mac_addr *mac_addr)
 660 {
 661         struct sfc_mae_fw_rsrc *fw_rsrc;
 662         int rc;
 663
 664         if (mac_addr == NULL)
 665                 return;
 666
 667         SFC_ASSERT(sfc_adapter_is_locked(sa));
 668
 669         fw_rsrc = &mac_addr->fw_rsrc;
 670
 671         if (fw_rsrc->mac_id.id == EFX_MAE_RSRC_ID_INVALID ||
 672             fw_rsrc->refcnt == 0) {
 673                 sfc_err(sa, "failed to disable mac_addr=%p: already disabled; MAC_ID=0x%08x, refcnt=%u",
 674                         mac_addr, fw_rsrc->mac_id.id, fw_rsrc->refcnt);
 675                 return;
 676         }
 677
 678         if (fw_rsrc->refcnt == 1) {
 679                 rc = efx_mae_mac_addr_free(sa->nic, &fw_rsrc->mac_id);
 680                 if (rc == 0) {
 681                         sfc_dbg(sa, "disabled mac_addr=%p with MAC_ID=0x%08x",
 682                                 mac_addr, fw_rsrc->mac_id.id);
 683                 } else {
 684                         sfc_err(sa, "failed to disable mac_addr=%p with MAC_ID=0x%08x: %s",
 685                                 mac_addr, fw_rsrc->mac_id.id, strerror(rc));
 686                 }
 687                 fw_rsrc->mac_id.id = EFX_MAE_RSRC_ID_INVALID;
 688         }
 689
 690         --(fw_rsrc->refcnt);
 691 }
 692
 693 static struct sfc_mae_encap_header *
 694 sfc_mae_encap_header_attach(struct sfc_adapter *sa,
 695                             const struct sfc_mae_bounce_eh *bounce_eh)
 696 {
 697         struct sfc_mae_encap_header *encap_header;
 698         struct sfc_mae *mae = &sa->mae;
 699
 700         SFC_ASSERT(sfc_adapter_is_locked(sa));
 701
 702         TAILQ_FOREACH(encap_header, &mae->encap_headers, entries) {
 703                 if (encap_header->size == bounce_eh->size &&
 704                     memcmp(encap_header->buf, bounce_eh->buf,
 705                            bounce_eh->size) == 0) {
 706                         sfc_dbg(sa, "attaching to encap_header=%p",
 707                                 encap_header);
 708                         ++(encap_header->refcnt);
 709                         return encap_header;
 710                 }
 711         }
 712
 713         return NULL;
 714 }
 715
 716 static int
 717 sfc_mae_encap_header_add(struct sfc_adapter *sa,
 718                          const struct sfc_mae_bounce_eh *bounce_eh,
 719                          struct sfc_mae_encap_header **encap_headerp)
 720 {
 721         struct sfc_mae_encap_header *encap_header;
 722         struct sfc_mae *mae = &sa->mae;
 723
 724         SFC_ASSERT(sfc_adapter_is_locked(sa));
 725
 726         encap_header = rte_zmalloc("sfc_mae_encap_header",
 727                                    sizeof(*encap_header), 0);
 728         if (encap_header == NULL)
 729                 return ENOMEM;
 730
 731         encap_header->size = bounce_eh->size;
 732
 733         encap_header->buf = rte_malloc("sfc_mae_encap_header_buf",
 734                                        encap_header->size, 0);
 735         if (encap_header->buf == NULL) {
 736                 rte_free(encap_header);
 737                 return ENOMEM;
 738         }
 739
 740         rte_memcpy(encap_header->buf, bounce_eh->buf, bounce_eh->size);
 741
 742         encap_header->refcnt = 1;
 743         encap_header->type = bounce_eh->type;
 744         encap_header->fw_rsrc.eh_id.id = EFX_MAE_RSRC_ID_INVALID;
 745
 746         TAILQ_INSERT_TAIL(&mae->encap_headers, encap_header, entries);
 747
 748         *encap_headerp = encap_header;
 749
 750         sfc_dbg(sa, "added encap_header=%p", encap_header);
 751
 752         return 0;
 753 }
 754
 755 static void
 756 sfc_mae_encap_header_del(struct sfc_adapter *sa,
 757                        struct sfc_mae_encap_header *encap_header)
 758 {
 759         struct sfc_mae *mae = &sa->mae;
 760
 761         if (encap_header == NULL)
 762                 return;
 763
 764         SFC_ASSERT(sfc_adapter_is_locked(sa));
 765         SFC_ASSERT(encap_header->refcnt != 0);
 766
 767         --(encap_header->refcnt);
 768
 769         if (encap_header->refcnt != 0)
 770                 return;
 771
 772         if (encap_header->fw_rsrc.eh_id.id != EFX_MAE_RSRC_ID_INVALID ||
 773             encap_header->fw_rsrc.refcnt != 0) {
 774                 sfc_err(sa, "deleting encap_header=%p abandons its FW resource: EH_ID=0x%08x, refcnt=%u",
 775                         encap_header, encap_header->fw_rsrc.eh_id.id,
 776                         encap_header->fw_rsrc.refcnt);
 777         }
 778
 779         TAILQ_REMOVE(&mae->encap_headers, encap_header, entries);
 780         rte_free(encap_header->buf);
 781         rte_free(encap_header);
 782
 783         sfc_dbg(sa, "deleted encap_header=%p", encap_header);
 784 }
 785
 786 static int
 787 sfc_mae_encap_header_enable(struct sfc_adapter *sa,
 788                             struct sfc_mae_encap_header *encap_header,
 789                             efx_mae_actions_t *action_set_spec)
 790 {
 791         struct sfc_mae_fw_rsrc *fw_rsrc;
 792         int rc;
 793
 794         if (encap_header == NULL)
 795                 return 0;
 796
 797         SFC_ASSERT(sfc_adapter_is_locked(sa));
 798
 799         fw_rsrc = &encap_header->fw_rsrc;
 800
 801         if (fw_rsrc->refcnt == 0) {
 802                 SFC_ASSERT(fw_rsrc->eh_id.id == EFX_MAE_RSRC_ID_INVALID);
 803                 SFC_ASSERT(encap_header->buf != NULL);
 804                 SFC_ASSERT(encap_header->size != 0);
 805
 806                 rc = efx_mae_encap_header_alloc(sa->nic, encap_header->type,
 807                                                 encap_header->buf,
 808                                                 encap_header->size,
 809                                                 &fw_rsrc->eh_id);
 810                 if (rc != 0) {
 811                         sfc_err(sa, "failed to enable encap_header=%p: %s",
 812                                 encap_header, strerror(rc));
 813                         return rc;
 814                 }
 815         }
 816
 817         rc = efx_mae_action_set_fill_in_eh_id(action_set_spec,
 818                                               &fw_rsrc->eh_id);
 819         if (rc != 0) {
 820                 if (fw_rsrc->refcnt == 0) {
 821                         (void)efx_mae_encap_header_free(sa->nic,
 822                                                         &fw_rsrc->eh_id);
 823                         fw_rsrc->eh_id.id = EFX_MAE_RSRC_ID_INVALID;
 824                 }
 825
 826                 sfc_err(sa, "can't fill in encap. header ID: %s", strerror(rc));
 827
 828                 return rc;
 829         }
 830
 831         if (fw_rsrc->refcnt == 0) {
 832                 sfc_dbg(sa, "enabled encap_header=%p: EH_ID=0x%08x",
 833                         encap_header, fw_rsrc->eh_id.id);
 834         }
 835
 836         ++(fw_rsrc->refcnt);
 837
 838         return 0;
 839 }
 840
 841 static void
 842 sfc_mae_encap_header_disable(struct sfc_adapter *sa,
 843                              struct sfc_mae_encap_header *encap_header)
 844 {
 845         struct sfc_mae_fw_rsrc *fw_rsrc;
 846         int rc;
 847
 848         if (encap_header == NULL)
 849                 return;
 850
 851         SFC_ASSERT(sfc_adapter_is_locked(sa));
 852
 853         fw_rsrc = &encap_header->fw_rsrc;
 854
 855         if (fw_rsrc->eh_id.id == EFX_MAE_RSRC_ID_INVALID ||
 856             fw_rsrc->refcnt == 0) {
 857                 sfc_err(sa, "failed to disable encap_header=%p: already disabled; EH_ID=0x%08x, refcnt=%u",
 858                         encap_header, fw_rsrc->eh_id.id, fw_rsrc->refcnt);
 859                 return;
 860         }
 861
 862         if (fw_rsrc->refcnt == 1) {
 863                 rc = efx_mae_encap_header_free(sa->nic, &fw_rsrc->eh_id);
 864                 if (rc == 0) {
 865                         sfc_dbg(sa, "disabled encap_header=%p with EH_ID=0x%08x",
 866                                 encap_header, fw_rsrc->eh_id.id);
 867                 } else {
 868                         sfc_err(sa, "failed to disable encap_header=%p with EH_ID=0x%08x: %s",
 869                                 encap_header, fw_rsrc->eh_id.id, strerror(rc));
 870                 }
 871                 fw_rsrc->eh_id.id = EFX_MAE_RSRC_ID_INVALID;
 872         }
 873
 874         --(fw_rsrc->refcnt);
 875 }
 876
 877 static int
 878 sfc_mae_counters_enable(struct sfc_adapter *sa,
 879                         struct sfc_mae_counter_id *counters,
 880                         unsigned int n_counters,
 881                         efx_mae_actions_t *action_set_spec)
 882 {
 883         int rc;
 884
 885         sfc_log_init(sa, "entry");
 886
 887         if (n_counters == 0) {
 888                 sfc_log_init(sa, "no counters - skip");
 889                 return 0;
 890         }
 891
 892         SFC_ASSERT(sfc_adapter_is_locked(sa));
 893         SFC_ASSERT(n_counters == 1);
 894
 895         rc = sfc_mae_counter_enable(sa, &counters[0]);
 896         if (rc != 0) {
 897                 sfc_err(sa, "failed to enable MAE counter %u: %s",
 898                         counters[0].mae_id.id, rte_strerror(rc));
 899                 goto fail_counter_add;
 900         }
 901
 902         rc = efx_mae_action_set_fill_in_counter_id(action_set_spec,
 903                                                    &counters[0].mae_id);
 904         if (rc != 0) {
 905                 sfc_err(sa, "failed to fill in MAE counter %u in action set: %s",
 906                         counters[0].mae_id.id, rte_strerror(rc));
 907                 goto fail_fill_in_id;
 908         }
 909
 910         return 0;
 911
 912 fail_fill_in_id:
 913         (void)sfc_mae_counter_disable(sa, &counters[0]);
 914
 915 fail_counter_add:
 916         sfc_log_init(sa, "failed: %s", rte_strerror(rc));
 917         return rc;
 918 }
 919
 920 static int
 921 sfc_mae_counters_disable(struct sfc_adapter *sa,
 922                          struct sfc_mae_counter_id *counters,
 923                          unsigned int n_counters)
 924 {
 925         if (n_counters == 0)
 926                 return 0;
 927
 928         SFC_ASSERT(sfc_adapter_is_locked(sa));
 929         SFC_ASSERT(n_counters == 1);
 930
 931         if (counters[0].mae_id.id == EFX_MAE_RSRC_ID_INVALID) {
 932                 sfc_err(sa, "failed to disable: already disabled");
 933                 return EALREADY;
 934         }
 935
 936         return sfc_mae_counter_disable(sa, &counters[0]);
 937 }
 938
 939 struct sfc_mae_aset_ctx {
 940         uint64_t                        *ft_group_hit_counter;
 941         struct sfc_mae_encap_header     *encap_header;
 942         struct sfc_flow_tunnel          *counter_ft;
 943         unsigned int                    n_counters;
 944         struct sfc_mae_mac_addr         *dst_mac;
 945         struct sfc_mae_mac_addr         *src_mac;
 946
 947         efx_mae_actions_t               *spec;
 948 };
 949
 950 static struct sfc_mae_action_set *
 951 sfc_mae_action_set_attach(struct sfc_adapter *sa,
 952                           const struct sfc_mae_aset_ctx *ctx)
 953 {
 954         struct sfc_mae_action_set *action_set;
 955         struct sfc_mae *mae = &sa->mae;
 956
 957         SFC_ASSERT(sfc_adapter_is_locked(sa));
 958
 959         /*
 960          * Shared counters are not supported, hence, action
 961          * sets with counters are not attachable.
 962          */
 963         if (ctx->n_counters != 0)
 964                 return NULL;
 965
 966         TAILQ_FOREACH(action_set, &mae->action_sets, entries) {
 967                 if (action_set->encap_header == ctx->encap_header &&
 968                     action_set->dst_mac_addr == ctx->dst_mac &&
 969                     action_set->src_mac_addr == ctx->src_mac &&
 970                     efx_mae_action_set_specs_equal(action_set->spec,
 971                                                    ctx->spec)) {
 972                         sfc_dbg(sa, "attaching to action_set=%p", action_set);
 973                         ++(action_set->refcnt);
 974                         return action_set;
 975                 }
 976         }
 977
 978         return NULL;
 979 }
 980
 981 static int
 982 sfc_mae_action_set_add(struct sfc_adapter *sa,
 983                        const struct rte_flow_action actions[],
 984                        const struct sfc_mae_aset_ctx *ctx,
 985                        struct sfc_mae_action_set **action_setp)
 986 {
 987         struct sfc_mae_action_set *action_set;
 988         struct sfc_mae *mae = &sa->mae;
 989         unsigned int i;
 990
 991         SFC_ASSERT(sfc_adapter_is_locked(sa));
 992
 993         action_set = rte_zmalloc("sfc_mae_action_set", sizeof(*action_set), 0);
 994         if (action_set == NULL) {
 995                 sfc_err(sa, "failed to alloc action set");
 996                 return ENOMEM;
 997         }
 998
 999         if (ctx->n_counters > 0) {
1000                 const struct rte_flow_action *action;
1001
1002                 action_set->counters = rte_malloc("sfc_mae_counter_ids",
1003                         sizeof(action_set->counters[0]) * ctx->n_counters, 0);
1004                 if (action_set->counters == NULL) {
1005                         rte_free(action_set);
1006                         sfc_err(sa, "failed to alloc counters");
1007                         return ENOMEM;
1008                 }
1009
1010                 for (i = 0; i < ctx->n_counters; ++i) {
1011                         action_set->counters[i].rte_id_valid = B_FALSE;
1012                         action_set->counters[i].mae_id.id =
1013                                 EFX_MAE_RSRC_ID_INVALID;
1014
1015                         action_set->counters[i].ft_group_hit_counter =
1016                                 ctx->ft_group_hit_counter;
1017                         action_set->counters[i].ft = ctx->counter_ft;
1018                 }
1019
1020                 for (action = actions, i = 0;
1021                      action->type != RTE_FLOW_ACTION_TYPE_END &&
1022                      i < ctx->n_counters; ++action) {
1023                         const struct rte_flow_action_count *conf;
1024
1025                         if (action->type != RTE_FLOW_ACTION_TYPE_COUNT)
1026                                 continue;
1027
1028                         conf = action->conf;
1029
1030                         action_set->counters[i].rte_id_valid = B_TRUE;
1031                         action_set->counters[i].rte_id = conf->id;
1032                         i++;
1033                 }
1034                 action_set->n_counters = ctx->n_counters;
1035         }
1036
1037         action_set->refcnt = 1;
1038         action_set->spec = ctx->spec;
1039         action_set->encap_header = ctx->encap_header;
1040         action_set->dst_mac_addr = ctx->dst_mac;
1041         action_set->src_mac_addr = ctx->src_mac;
1042
1043         action_set->fw_rsrc.aset_id.id = EFX_MAE_RSRC_ID_INVALID;
1044
1045         TAILQ_INSERT_TAIL(&mae->action_sets, action_set, entries);
1046
1047         *action_setp = action_set;
1048
1049         sfc_dbg(sa, "added action_set=%p", action_set);
1050
1051         return 0;
1052 }
1053
1054 static void
1055 sfc_mae_action_set_del(struct sfc_adapter *sa,
1056                        struct sfc_mae_action_set *action_set)
1057 {
1058         struct sfc_mae *mae = &sa->mae;
1059
1060         SFC_ASSERT(sfc_adapter_is_locked(sa));
1061         SFC_ASSERT(action_set->refcnt != 0);
1062
1063         --(action_set->refcnt);
1064
1065         if (action_set->refcnt != 0)
1066                 return;
1067
1068         if (action_set->fw_rsrc.aset_id.id != EFX_MAE_RSRC_ID_INVALID ||
1069             action_set->fw_rsrc.refcnt != 0) {
1070                 sfc_err(sa, "deleting action_set=%p abandons its FW resource: AS_ID=0x%08x, refcnt=%u",
1071                         action_set, action_set->fw_rsrc.aset_id.id,
1072                         action_set->fw_rsrc.refcnt);
1073         }
1074
1075         efx_mae_action_set_spec_fini(sa->nic, action_set->spec);
1076         sfc_mae_encap_header_del(sa, action_set->encap_header);
1077         sfc_mae_mac_addr_del(sa, action_set->dst_mac_addr);
1078         sfc_mae_mac_addr_del(sa, action_set->src_mac_addr);
1079         if (action_set->n_counters > 0) {
1080                 SFC_ASSERT(action_set->n_counters == 1);
1081                 SFC_ASSERT(action_set->counters[0].mae_id.id ==
1082                            EFX_MAE_RSRC_ID_INVALID);
1083                 rte_free(action_set->counters);
1084         }
1085         TAILQ_REMOVE(&mae->action_sets, action_set, entries);
1086         rte_free(action_set);
1087
1088         sfc_dbg(sa, "deleted action_set=%p", action_set);
1089 }
1090
1091 static int
1092 sfc_mae_action_set_enable(struct sfc_adapter *sa,
1093                           struct sfc_mae_action_set *action_set)
1094 {
1095         struct sfc_mae_encap_header *encap_header = action_set->encap_header;
1096         struct sfc_mae_mac_addr *dst_mac_addr = action_set->dst_mac_addr;
1097         struct sfc_mae_mac_addr *src_mac_addr = action_set->src_mac_addr;
1098         struct sfc_mae_counter_id *counters = action_set->counters;
1099         struct sfc_mae_fw_rsrc *fw_rsrc = &action_set->fw_rsrc;
1100         int rc;
1101
1102         SFC_ASSERT(sfc_adapter_is_locked(sa));
1103
1104         if (fw_rsrc->refcnt == 0) {
1105                 SFC_ASSERT(fw_rsrc->aset_id.id == EFX_MAE_RSRC_ID_INVALID);
1106                 SFC_ASSERT(action_set->spec != NULL);
1107
1108                 rc = sfc_mae_mac_addr_enable(sa, dst_mac_addr,
1109                                              SFC_MAE_MAC_ADDR_DST,
1110                                              action_set->spec);
1111                 if (rc != 0)
1112                         return rc;
1113
1114                 rc = sfc_mae_mac_addr_enable(sa, src_mac_addr,
1115                                              SFC_MAE_MAC_ADDR_SRC,
1116                                              action_set->spec);
1117                 if (rc != 0) {
1118                         sfc_mae_mac_addr_disable(sa, dst_mac_addr);
1119                         return rc;
1120                 }
1121
1122                 rc = sfc_mae_encap_header_enable(sa, encap_header,
1123                                                  action_set->spec);
1124                 if (rc != 0) {
1125                         sfc_mae_mac_addr_disable(sa, src_mac_addr);
1126                         sfc_mae_mac_addr_disable(sa, dst_mac_addr);
1127                         return rc;
1128                 }
1129
1130                 rc = sfc_mae_counters_enable(sa, counters,
1131                                              action_set->n_counters,
1132                                              action_set->spec);
1133                 if (rc != 0) {
1134                         sfc_err(sa, "failed to enable %u MAE counters: %s",
1135                                 action_set->n_counters, rte_strerror(rc));
1136
1137                         sfc_mae_encap_header_disable(sa, encap_header);
1138                         sfc_mae_mac_addr_disable(sa, src_mac_addr);
1139                         sfc_mae_mac_addr_disable(sa, dst_mac_addr);
1140                         return rc;
1141                 }
1142
1143                 rc = efx_mae_action_set_alloc(sa->nic, action_set->spec,
1144                                               &fw_rsrc->aset_id);
1145                 if (rc != 0) {
1146                         sfc_err(sa, "failed to enable action_set=%p: %s",
1147                                 action_set, strerror(rc));
1148
1149                         (void)sfc_mae_counters_disable(sa, counters,
1150                                                        action_set->n_counters);
1151                         sfc_mae_encap_header_disable(sa, encap_header);
1152                         sfc_mae_mac_addr_disable(sa, src_mac_addr);
1153                         sfc_mae_mac_addr_disable(sa, dst_mac_addr);
1154                         return rc;
1155                 }
1156
1157                 sfc_dbg(sa, "enabled action_set=%p: AS_ID=0x%08x",
1158                         action_set, fw_rsrc->aset_id.id);
1159         }
1160
1161         ++(fw_rsrc->refcnt);
1162
1163         return 0;
1164 }
1165
1166 static void
1167 sfc_mae_action_set_disable(struct sfc_adapter *sa,
1168                            struct sfc_mae_action_set *action_set)
1169 {
1170         struct sfc_mae_fw_rsrc *fw_rsrc = &action_set->fw_rsrc;
1171         int rc;
1172
1173         SFC_ASSERT(sfc_adapter_is_locked(sa));
1174
1175         if (fw_rsrc->aset_id.id == EFX_MAE_RSRC_ID_INVALID ||
1176             fw_rsrc->refcnt == 0) {
1177                 sfc_err(sa, "failed to disable action_set=%p: already disabled; AS_ID=0x%08x, refcnt=%u",
1178                         action_set, fw_rsrc->aset_id.id, fw_rsrc->refcnt);
1179                 return;
1180         }
1181
1182         if (fw_rsrc->refcnt == 1) {
1183                 rc = efx_mae_action_set_free(sa->nic, &fw_rsrc->aset_id);
1184                 if (rc == 0) {
1185                         sfc_dbg(sa, "disabled action_set=%p with AS_ID=0x%08x",
1186                                 action_set, fw_rsrc->aset_id.id);
1187                 } else {
1188                         sfc_err(sa, "failed to disable action_set=%p with AS_ID=0x%08x: %s",
1189                                 action_set, fw_rsrc->aset_id.id, strerror(rc));
1190                 }
1191                 fw_rsrc->aset_id.id = EFX_MAE_RSRC_ID_INVALID;
1192
1193                 rc = sfc_mae_counters_disable(sa, action_set->counters,
1194                                               action_set->n_counters);
1195                 if (rc != 0) {
1196                         sfc_err(sa, "failed to disable %u MAE counters: %s",
1197                                 action_set->n_counters, rte_strerror(rc));
1198                 }
1199
1200                 sfc_mae_encap_header_disable(sa, action_set->encap_header);
1201                 sfc_mae_mac_addr_disable(sa, action_set->src_mac_addr);
1202                 sfc_mae_mac_addr_disable(sa, action_set->dst_mac_addr);
1203         }
1204
1205         --(fw_rsrc->refcnt);
1206 }
1207
1208 void
1209 sfc_mae_flow_cleanup(struct sfc_adapter *sa,
1210                      struct rte_flow *flow)
1211 {
1212         struct sfc_flow_spec_mae *spec_mae;
1213
1214         if (flow == NULL)
1215                 return;
1216
1217         spec_mae = &flow->spec.mae;
1218
1219         if (spec_mae->ft != NULL) {
1220                 if (spec_mae->ft_rule_type == SFC_FT_RULE_JUMP)
1221                         spec_mae->ft->jump_rule_is_set = B_FALSE;
1222
1223                 SFC_ASSERT(spec_mae->ft->refcnt != 0);
1224                 --(spec_mae->ft->refcnt);
1225         }
1226
1227         SFC_ASSERT(spec_mae->rule_id.id == EFX_MAE_RSRC_ID_INVALID);
1228
1229         if (spec_mae->outer_rule != NULL)
1230                 sfc_mae_outer_rule_del(sa, spec_mae->outer_rule);
1231
1232         if (spec_mae->action_set != NULL)
1233                 sfc_mae_action_set_del(sa, spec_mae->action_set);
1234
1235         if (spec_mae->match_spec != NULL)
1236                 efx_mae_match_spec_fini(sa->nic, spec_mae->match_spec);
1237 }
1238
1239 static int
1240 sfc_mae_set_ethertypes(struct sfc_mae_parse_ctx *ctx)
1241 {
1242         struct sfc_mae_pattern_data *pdata = &ctx->pattern_data;
1243         const efx_mae_field_id_t *fremap = ctx->field_ids_remap;
1244         const efx_mae_field_id_t field_ids[] = {
1245                 EFX_MAE_FIELD_VLAN0_PROTO_BE,
1246                 EFX_MAE_FIELD_VLAN1_PROTO_BE,
1247         };
1248         const struct sfc_mae_ethertype *et;
1249         unsigned int i;
1250         int rc;
1251
1252         /*
1253          * In accordance with RTE flow API convention, the innermost L2
1254          * item's "type" ("inner_type") is a L3 EtherType. If there is
1255          * no L3 item, it's 0x0000/0x0000.
1256          */
1257         et = &pdata->ethertypes[pdata->nb_vlan_tags];
1258         rc = efx_mae_match_spec_field_set(ctx->match_spec,
1259                                           fremap[EFX_MAE_FIELD_ETHER_TYPE_BE],
1260                                           sizeof(et->value),
1261                                           (const uint8_t *)&et->value,
1262                                           sizeof(et->mask),
1263                                           (const uint8_t *)&et->mask);
1264         if (rc != 0)
1265                 return rc;
1266
1267         /*
1268          * sfc_mae_rule_parse_item_vlan() has already made sure
1269          * that pdata->nb_vlan_tags does not exceed this figure.
1270          */
1271         RTE_BUILD_BUG_ON(SFC_MAE_MATCH_VLAN_MAX_NTAGS != 2);
1272
1273         for (i = 0; i < pdata->nb_vlan_tags; ++i) {
1274                 et = &pdata->ethertypes[i];
1275
1276                 rc = efx_mae_match_spec_field_set(ctx->match_spec,
1277                                                   fremap[field_ids[i]],
1278                                                   sizeof(et->value),
1279                                                   (const uint8_t *)&et->value,
1280                                                   sizeof(et->mask),
1281                                                   (const uint8_t *)&et->mask);
1282                 if (rc != 0)
1283                         return rc;
1284         }
1285
1286         return 0;
1287 }
1288
1289 static int
1290 sfc_mae_rule_process_pattern_data(struct sfc_mae_parse_ctx *ctx,
1291                                   struct rte_flow_error *error)
1292 {
1293         const efx_mae_field_id_t *fremap = ctx->field_ids_remap;
1294         struct sfc_mae_pattern_data *pdata = &ctx->pattern_data;
1295         struct sfc_mae_ethertype *ethertypes = pdata->ethertypes;
1296         const rte_be16_t supported_tpids[] = {
1297                 /* VLAN standard TPID (always the first element) */
1298                 RTE_BE16(RTE_ETHER_TYPE_VLAN),
1299
1300                 /* Double-tagging TPIDs */
1301                 RTE_BE16(RTE_ETHER_TYPE_QINQ),
1302                 RTE_BE16(RTE_ETHER_TYPE_QINQ1),
1303                 RTE_BE16(RTE_ETHER_TYPE_QINQ2),
1304                 RTE_BE16(RTE_ETHER_TYPE_QINQ3),
1305         };
1306         bool enforce_tag_presence[SFC_MAE_MATCH_VLAN_MAX_NTAGS] = {0};
1307         unsigned int nb_supported_tpids = RTE_DIM(supported_tpids);
1308         unsigned int ethertype_idx;
1309         const uint8_t *valuep;
1310         const uint8_t *maskp;
1311         int rc;
1312
1313         if (pdata->innermost_ethertype_restriction.mask != 0 &&
1314             pdata->nb_vlan_tags < SFC_MAE_MATCH_VLAN_MAX_NTAGS) {
1315                 /*
1316                  * If a single item VLAN is followed by a L3 item, value
1317                  * of "type" in item ETH can't be a double-tagging TPID.
1318                  */
1319                 nb_supported_tpids = 1;
1320         }
1321
1322         /*
1323          * sfc_mae_rule_parse_item_vlan() has already made sure
1324          * that pdata->nb_vlan_tags does not exceed this figure.
1325          */
1326         RTE_BUILD_BUG_ON(SFC_MAE_MATCH_VLAN_MAX_NTAGS != 2);
1327
1328         for (ethertype_idx = 0;
1329              ethertype_idx < pdata->nb_vlan_tags; ++ethertype_idx) {
1330                 rte_be16_t tpid_v = ethertypes[ethertype_idx].value;
1331                 rte_be16_t tpid_m = ethertypes[ethertype_idx].mask;
1332                 unsigned int tpid_idx;
1333
1334                 /*
1335                  * This loop can have only two iterations. On the second one,
1336                  * drop outer tag presence enforcement bit because the inner
1337                  * tag presence automatically assumes that for the outer tag.
1338                  */
1339                 enforce_tag_presence[0] = B_FALSE;
1340
1341                 if (tpid_m == RTE_BE16(0)) {
1342                         if (pdata->tci_masks[ethertype_idx] == RTE_BE16(0))
1343                                 enforce_tag_presence[ethertype_idx] = B_TRUE;
1344
1345                         /* No match on this field, and no value check. */
1346                         nb_supported_tpids = 1;
1347                         continue;
1348                 }
1349
1350                 /* Exact match is supported only. */
1351                 if (tpid_m != RTE_BE16(0xffff)) {
1352                         sfc_err(ctx->sa, "TPID mask must be 0x0 or 0xffff; got 0x%04x",
1353                                 rte_be_to_cpu_16(tpid_m));
1354                         rc = EINVAL;
1355                         goto fail;
1356                 }
1357
1358                 for (tpid_idx = pdata->nb_vlan_tags - ethertype_idx - 1;
1359                      tpid_idx < nb_supported_tpids; ++tpid_idx) {
1360                         if (tpid_v == supported_tpids[tpid_idx])
1361                                 break;
1362                 }
1363
1364                 if (tpid_idx == nb_supported_tpids) {
1365                         sfc_err(ctx->sa, "TPID 0x%04x is unsupported",
1366                                 rte_be_to_cpu_16(tpid_v));
1367                         rc = EINVAL;
1368                         goto fail;
1369                 }
1370
1371                 nb_supported_tpids = 1;
1372         }
1373
1374         if (pdata->innermost_ethertype_restriction.mask == RTE_BE16(0xffff)) {
1375                 struct sfc_mae_ethertype *et = &ethertypes[ethertype_idx];
1376                 rte_be16_t enforced_et;
1377
1378                 enforced_et = pdata->innermost_ethertype_restriction.value;
1379
1380                 if (et->mask == 0) {
1381                         et->mask = RTE_BE16(0xffff);
1382                         et->value = enforced_et;
1383                 } else if (et->mask != RTE_BE16(0xffff) ||
1384                            et->value != enforced_et) {
1385                         sfc_err(ctx->sa, "L3 EtherType must be 0x0/0x0 or 0x%04x/0xffff; got 0x%04x/0x%04x",
1386                                 rte_be_to_cpu_16(enforced_et),
1387                                 rte_be_to_cpu_16(et->value),
1388                                 rte_be_to_cpu_16(et->mask));
1389                         rc = EINVAL;
1390                         goto fail;
1391                 }
1392         }
1393
1394         /*
1395          * Now, when the number of VLAN tags is known, set fields
1396          * ETHER_TYPE, VLAN0_PROTO and VLAN1_PROTO so that the first
1397          * one is either a valid L3 EtherType (or 0x0000/0x0000),
1398          * and the last two are valid TPIDs (or 0x0000/0x0000).
1399          */
1400         rc = sfc_mae_set_ethertypes(ctx);
1401         if (rc != 0)
1402                 goto fail;
1403
1404         if (pdata->l3_next_proto_restriction_mask == 0xff) {
1405                 if (pdata->l3_next_proto_mask == 0) {
1406                         pdata->l3_next_proto_mask = 0xff;
1407                         pdata->l3_next_proto_value =
1408                                 pdata->l3_next_proto_restriction_value;
1409                 } else if (pdata->l3_next_proto_mask != 0xff ||
1410                            pdata->l3_next_proto_value !=
1411                            pdata->l3_next_proto_restriction_value) {
1412                         sfc_err(ctx->sa, "L3 next protocol must be 0x0/0x0 or 0x%02x/0xff; got 0x%02x/0x%02x",
1413                                 pdata->l3_next_proto_restriction_value,
1414                                 pdata->l3_next_proto_value,
1415                                 pdata->l3_next_proto_mask);
1416                         rc = EINVAL;
1417                         goto fail;
1418                 }
1419         }
1420
1421         if (enforce_tag_presence[0] || pdata->has_ovlan_mask) {
1422                 rc = efx_mae_match_spec_bit_set(ctx->match_spec,
1423                                                 fremap[EFX_MAE_FIELD_HAS_OVLAN],
1424                                                 enforce_tag_presence[0] ||
1425                                                 pdata->has_ovlan_value);
1426                 if (rc != 0)
1427                         goto fail;
1428         }
1429
1430         if (enforce_tag_presence[1] || pdata->has_ivlan_mask) {
1431                 rc = efx_mae_match_spec_bit_set(ctx->match_spec,
1432                                                 fremap[EFX_MAE_FIELD_HAS_IVLAN],
1433                                                 enforce_tag_presence[1] ||
1434                                                 pdata->has_ivlan_value);
1435                 if (rc != 0)
1436                         goto fail;
1437         }
1438
1439         valuep = (const uint8_t *)&pdata->l3_next_proto_value;
1440         maskp = (const uint8_t *)&pdata->l3_next_proto_mask;
1441         rc = efx_mae_match_spec_field_set(ctx->match_spec,
1442                                           fremap[EFX_MAE_FIELD_IP_PROTO],
1443                                           sizeof(pdata->l3_next_proto_value),
1444                                           valuep,
1445                                           sizeof(pdata->l3_next_proto_mask),
1446                                           maskp);
1447         if (rc != 0)
1448                 goto fail;
1449
1450         return 0;
1451
1452 fail:
1453         return rte_flow_error_set(error, rc, RTE_FLOW_ERROR_TYPE_ITEM, NULL,
1454                                   "Failed to process pattern data");
1455 }
1456
1457 static int
1458 sfc_mae_rule_parse_item_mark(const struct rte_flow_item *item,
1459                              struct sfc_flow_parse_ctx *ctx,
1460                              struct rte_flow_error *error)
1461 {
1462         const struct rte_flow_item_mark *spec = item->spec;
1463         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
1464
1465         if (spec == NULL) {
1466                 return rte_flow_error_set(error, EINVAL,
1467                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1468                                 "NULL spec in item MARK");
1469         }
1470
1471         /*
1472          * This item is used in tunnel offload support only.
1473          * It must go before any network header items. This
1474          * way, sfc_mae_rule_preparse_item_mark() must have
1475          * already parsed it. Only one item MARK is allowed.
1476          */
1477         if (ctx_mae->ft_rule_type != SFC_FT_RULE_GROUP ||
1478             spec->id != (uint32_t)SFC_FT_ID_TO_MARK(ctx_mae->ft->id)) {
1479                 return rte_flow_error_set(error, EINVAL,
1480                                           RTE_FLOW_ERROR_TYPE_ITEM,
1481                                           item, "invalid item MARK");
1482         }
1483
1484         return 0;
1485 }
1486
1487 static int
1488 sfc_mae_rule_parse_item_port_id(const struct rte_flow_item *item,
1489                                 struct sfc_flow_parse_ctx *ctx,
1490                                 struct rte_flow_error *error)
1491 {
1492         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
1493         const struct rte_flow_item_port_id supp_mask = {
1494                 .id = 0xffffffff,
1495         };
1496         const void *def_mask = &rte_flow_item_port_id_mask;
1497         const struct rte_flow_item_port_id *spec = NULL;
1498         const struct rte_flow_item_port_id *mask = NULL;
1499         efx_mport_sel_t mport_sel;
1500         int rc;
1501
1502         if (ctx_mae->match_mport_set) {
1503                 return rte_flow_error_set(error, ENOTSUP,
1504                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1505                                 "Can't handle multiple traffic source items");
1506         }
1507
1508         rc = sfc_flow_parse_init(item,
1509                                  (const void **)&spec, (const void **)&mask,
1510                                  (const void *)&supp_mask, def_mask,
1511                                  sizeof(struct rte_flow_item_port_id), error);
1512         if (rc != 0)
1513                 return rc;
1514
1515         if (mask->id != supp_mask.id) {
1516                 return rte_flow_error_set(error, EINVAL,
1517                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1518                                 "Bad mask in the PORT_ID pattern item");
1519         }
1520
1521         /* If "spec" is not set, could be any port ID */
1522         if (spec == NULL)
1523                 return 0;
1524
1525         if (spec->id > UINT16_MAX) {
1526                 return rte_flow_error_set(error, EOVERFLOW,
1527                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
1528                                           "The port ID is too large");
1529         }
1530
1531         rc = sfc_mae_switch_get_ethdev_mport(ctx_mae->sa->mae.switch_domain_id,
1532                                              spec->id, &mport_sel);
1533         if (rc != 0) {
1534                 return rte_flow_error_set(error, rc,
1535                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1536                                 "Can't get m-port for the given ethdev");
1537         }
1538
1539         rc = efx_mae_match_spec_mport_set(ctx_mae->match_spec,
1540                                           &mport_sel, NULL);
1541         if (rc != 0) {
1542                 return rte_flow_error_set(error, rc,
1543                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1544                                 "Failed to set MPORT for the port ID");
1545         }
1546
1547         ctx_mae->match_mport_set = B_TRUE;
1548
1549         return 0;
1550 }
1551
1552 static int
1553 sfc_mae_rule_parse_item_ethdev_based(const struct rte_flow_item *item,
1554                                      struct sfc_flow_parse_ctx *ctx,
1555                                      struct rte_flow_error *error)
1556 {
1557         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
1558         const struct rte_flow_item_ethdev supp_mask = {
1559                 .port_id = 0xffff,
1560         };
1561         const void *def_mask = &rte_flow_item_ethdev_mask;
1562         const struct rte_flow_item_ethdev *spec = NULL;
1563         const struct rte_flow_item_ethdev *mask = NULL;
1564         efx_mport_sel_t mport_sel;
1565         int rc;
1566
1567         if (ctx_mae->match_mport_set) {
1568                 return rte_flow_error_set(error, ENOTSUP,
1569                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1570                                 "Can't handle multiple traffic source items");
1571         }
1572
1573         rc = sfc_flow_parse_init(item,
1574                                  (const void **)&spec, (const void **)&mask,
1575                                  (const void *)&supp_mask, def_mask,
1576                                  sizeof(struct rte_flow_item_ethdev), error);
1577         if (rc != 0)
1578                 return rc;
1579
1580         if (mask->port_id != supp_mask.port_id) {
1581                 return rte_flow_error_set(error, EINVAL,
1582                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1583                                 "Bad mask in the ethdev-based pattern item");
1584         }
1585
1586         /* If "spec" is not set, could be any port ID */
1587         if (spec == NULL)
1588                 return 0;
1589
1590         switch (item->type) {
1591         case RTE_FLOW_ITEM_TYPE_PORT_REPRESENTOR:
1592                 rc = sfc_mae_switch_get_ethdev_mport(
1593                                 ctx_mae->sa->mae.switch_domain_id,
1594                                 spec->port_id, &mport_sel);
1595                 if (rc != 0) {
1596                         return rte_flow_error_set(error, rc,
1597                                         RTE_FLOW_ERROR_TYPE_ITEM, item,
1598                                         "Can't get m-port for the given ethdev");
1599                 }
1600                 break;
1601         case RTE_FLOW_ITEM_TYPE_REPRESENTED_PORT:
1602                 rc = sfc_mae_switch_get_entity_mport(
1603                                 ctx_mae->sa->mae.switch_domain_id,
1604                                 spec->port_id, &mport_sel);
1605                 if (rc != 0) {
1606                         return rte_flow_error_set(error, rc,
1607                                         RTE_FLOW_ERROR_TYPE_ITEM, item,
1608                                         "Can't get m-port for the given ethdev");
1609                 }
1610                 break;
1611         default:
1612                 return rte_flow_error_set(error, EINVAL,
1613                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1614                                 "Unsupported ethdev-based flow item");
1615         }
1616
1617         rc = efx_mae_match_spec_mport_set(ctx_mae->match_spec,
1618                                           &mport_sel, NULL);
1619         if (rc != 0) {
1620                 return rte_flow_error_set(error, rc,
1621                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1622                                 "Failed to set MPORT for the port ID");
1623         }
1624
1625         ctx_mae->match_mport_set = B_TRUE;
1626
1627         return 0;
1628 }
1629
1630 static int
1631 sfc_mae_rule_parse_item_phy_port(const struct rte_flow_item *item,
1632                                  struct sfc_flow_parse_ctx *ctx,
1633                                  struct rte_flow_error *error)
1634 {
1635         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
1636         const struct rte_flow_item_phy_port supp_mask = {
1637                 .index = 0xffffffff,
1638         };
1639         const void *def_mask = &rte_flow_item_phy_port_mask;
1640         const struct rte_flow_item_phy_port *spec = NULL;
1641         const struct rte_flow_item_phy_port *mask = NULL;
1642         efx_mport_sel_t mport_v;
1643         int rc;
1644
1645         if (ctx_mae->match_mport_set) {
1646                 return rte_flow_error_set(error, ENOTSUP,
1647                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1648                                 "Can't handle multiple traffic source items");
1649         }
1650
1651         rc = sfc_flow_parse_init(item,
1652                                  (const void **)&spec, (const void **)&mask,
1653                                  (const void *)&supp_mask, def_mask,
1654                                  sizeof(struct rte_flow_item_phy_port), error);
1655         if (rc != 0)
1656                 return rc;
1657
1658         if (mask->index != supp_mask.index) {
1659                 return rte_flow_error_set(error, EINVAL,
1660                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1661                                 "Bad mask in the PHY_PORT pattern item");
1662         }
1663
1664         /* If "spec" is not set, could be any physical port */
1665         if (spec == NULL)
1666                 return 0;
1667
1668         rc = efx_mae_mport_by_phy_port(spec->index, &mport_v);
1669         if (rc != 0) {
1670                 return rte_flow_error_set(error, rc,
1671                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1672                                 "Failed to convert the PHY_PORT index");
1673         }
1674
1675         rc = efx_mae_match_spec_mport_set(ctx_mae->match_spec, &mport_v, NULL);
1676         if (rc != 0) {
1677                 return rte_flow_error_set(error, rc,
1678                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1679                                 "Failed to set MPORT for the PHY_PORT");
1680         }
1681
1682         ctx_mae->match_mport_set = B_TRUE;
1683
1684         return 0;
1685 }
1686
1687 static int
1688 sfc_mae_rule_parse_item_pf(const struct rte_flow_item *item,
1689                            struct sfc_flow_parse_ctx *ctx,
1690                            struct rte_flow_error *error)
1691 {
1692         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
1693         const efx_nic_cfg_t *encp = efx_nic_cfg_get(ctx_mae->sa->nic);
1694         efx_mport_sel_t mport_v;
1695         int rc;
1696
1697         if (ctx_mae->match_mport_set) {
1698                 return rte_flow_error_set(error, ENOTSUP,
1699                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1700                                 "Can't handle multiple traffic source items");
1701         }
1702
1703         rc = efx_mae_mport_by_pcie_function(encp->enc_pf, EFX_PCI_VF_INVALID,
1704                                             &mport_v);
1705         if (rc != 0) {
1706                 return rte_flow_error_set(error, rc,
1707                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1708                                 "Failed to convert the PF ID");
1709         }
1710
1711         rc = efx_mae_match_spec_mport_set(ctx_mae->match_spec, &mport_v, NULL);
1712         if (rc != 0) {
1713                 return rte_flow_error_set(error, rc,
1714                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1715                                 "Failed to set MPORT for the PF");
1716         }
1717
1718         ctx_mae->match_mport_set = B_TRUE;
1719
1720         return 0;
1721 }
1722
1723 static int
1724 sfc_mae_rule_parse_item_vf(const struct rte_flow_item *item,
1725                            struct sfc_flow_parse_ctx *ctx,
1726                            struct rte_flow_error *error)
1727 {
1728         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
1729         const efx_nic_cfg_t *encp = efx_nic_cfg_get(ctx_mae->sa->nic);
1730         const struct rte_flow_item_vf supp_mask = {
1731                 .id = 0xffffffff,
1732         };
1733         const void *def_mask = &rte_flow_item_vf_mask;
1734         const struct rte_flow_item_vf *spec = NULL;
1735         const struct rte_flow_item_vf *mask = NULL;
1736         efx_mport_sel_t mport_v;
1737         int rc;
1738
1739         if (ctx_mae->match_mport_set) {
1740                 return rte_flow_error_set(error, ENOTSUP,
1741                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1742                                 "Can't handle multiple traffic source items");
1743         }
1744
1745         rc = sfc_flow_parse_init(item,
1746                                  (const void **)&spec, (const void **)&mask,
1747                                  (const void *)&supp_mask, def_mask,
1748                                  sizeof(struct rte_flow_item_vf), error);
1749         if (rc != 0)
1750                 return rc;
1751
1752         if (mask->id != supp_mask.id) {
1753                 return rte_flow_error_set(error, EINVAL,
1754                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1755                                 "Bad mask in the VF pattern item");
1756         }
1757
1758         /*
1759          * If "spec" is not set, the item requests any VF related to the
1760          * PF of the current DPDK port (but not the PF itself).
1761          * Reject this match criterion as unsupported.
1762          */
1763         if (spec == NULL) {
1764                 return rte_flow_error_set(error, EINVAL,
1765                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1766                                 "Bad spec in the VF pattern item");
1767         }
1768
1769         rc = efx_mae_mport_by_pcie_function(encp->enc_pf, spec->id, &mport_v);
1770         if (rc != 0) {
1771                 return rte_flow_error_set(error, rc,
1772                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1773                                 "Failed to convert the PF + VF IDs");
1774         }
1775
1776         rc = efx_mae_match_spec_mport_set(ctx_mae->match_spec, &mport_v, NULL);
1777         if (rc != 0) {
1778                 return rte_flow_error_set(error, rc,
1779                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
1780                                 "Failed to set MPORT for the PF + VF");
1781         }
1782
1783         ctx_mae->match_mport_set = B_TRUE;
1784
1785         return 0;
1786 }
1787
1788 /*
1789  * Having this field ID in a field locator means that this
1790  * locator cannot be used to actually set the field at the
1791  * time when the corresponding item gets encountered. Such
1792  * fields get stashed in the parsing context instead. This
1793  * is required to resolve dependencies between the stashed
1794  * fields. See sfc_mae_rule_process_pattern_data().
1795  */
1796 #define SFC_MAE_FIELD_HANDLING_DEFERRED EFX_MAE_FIELD_NIDS
1797
1798 struct sfc_mae_field_locator {
1799         efx_mae_field_id_t              field_id;
1800         size_t                          size;
1801         /* Field offset in the corresponding rte_flow_item_ struct */
1802         size_t                          ofst;
1803 };
1804
1805 static void
1806 sfc_mae_item_build_supp_mask(const struct sfc_mae_field_locator *field_locators,
1807                              unsigned int nb_field_locators, void *mask_ptr,
1808                              size_t mask_size)
1809 {
1810         unsigned int i;
1811
1812         memset(mask_ptr, 0, mask_size);
1813
1814         for (i = 0; i < nb_field_locators; ++i) {
1815                 const struct sfc_mae_field_locator *fl = &field_locators[i];
1816
1817                 SFC_ASSERT(fl->ofst + fl->size <= mask_size);
1818                 memset(RTE_PTR_ADD(mask_ptr, fl->ofst), 0xff, fl->size);
1819         }
1820 }
1821
1822 static int
1823 sfc_mae_parse_item(const struct sfc_mae_field_locator *field_locators,
1824                    unsigned int nb_field_locators, const uint8_t *spec,
1825                    const uint8_t *mask, struct sfc_mae_parse_ctx *ctx,
1826                    struct rte_flow_error *error)
1827 {
1828         const efx_mae_field_id_t *fremap = ctx->field_ids_remap;
1829         unsigned int i;
1830         int rc = 0;
1831
1832         for (i = 0; i < nb_field_locators; ++i) {
1833                 const struct sfc_mae_field_locator *fl = &field_locators[i];
1834
1835                 if (fl->field_id == SFC_MAE_FIELD_HANDLING_DEFERRED)
1836                         continue;
1837
1838                 rc = efx_mae_match_spec_field_set(ctx->match_spec,
1839                                                   fremap[fl->field_id],
1840                                                   fl->size, spec + fl->ofst,
1841                                                   fl->size, mask + fl->ofst);
1842                 if (rc != 0)
1843                         break;
1844         }
1845
1846         if (rc != 0) {
1847                 rc = rte_flow_error_set(error, rc, RTE_FLOW_ERROR_TYPE_ITEM,
1848                                 NULL, "Failed to process item fields");
1849         }
1850
1851         return rc;
1852 }
1853
1854 static const struct sfc_mae_field_locator flocs_eth[] = {
1855         {
1856                 /*
1857                  * This locator is used only for building supported fields mask.
1858                  * The field is handled by sfc_mae_rule_process_pattern_data().
1859                  */
1860                 SFC_MAE_FIELD_HANDLING_DEFERRED,
1861                 RTE_SIZEOF_FIELD(struct rte_flow_item_eth, type),
1862                 offsetof(struct rte_flow_item_eth, type),
1863         },
1864         {
1865                 EFX_MAE_FIELD_ETH_DADDR_BE,
1866                 RTE_SIZEOF_FIELD(struct rte_flow_item_eth, dst),
1867                 offsetof(struct rte_flow_item_eth, dst),
1868         },
1869         {
1870                 EFX_MAE_FIELD_ETH_SADDR_BE,
1871                 RTE_SIZEOF_FIELD(struct rte_flow_item_eth, src),
1872                 offsetof(struct rte_flow_item_eth, src),
1873         },
1874 };
1875
1876 static int
1877 sfc_mae_rule_parse_item_eth(const struct rte_flow_item *item,
1878                             struct sfc_flow_parse_ctx *ctx,
1879                             struct rte_flow_error *error)
1880 {
1881         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
1882         struct rte_flow_item_eth override_mask;
1883         struct rte_flow_item_eth supp_mask;
1884         const uint8_t *spec = NULL;
1885         const uint8_t *mask = NULL;
1886         int rc;
1887
1888         sfc_mae_item_build_supp_mask(flocs_eth, RTE_DIM(flocs_eth),
1889                                      &supp_mask, sizeof(supp_mask));
1890         supp_mask.has_vlan = 1;
1891
1892         rc = sfc_flow_parse_init(item,
1893                                  (const void **)&spec, (const void **)&mask,
1894                                  (const void *)&supp_mask,
1895                                  &rte_flow_item_eth_mask,
1896                                  sizeof(struct rte_flow_item_eth), error);
1897         if (rc != 0)
1898                 return rc;
1899
1900         if (ctx_mae->ft_rule_type == SFC_FT_RULE_JUMP && mask != NULL) {
1901                 /*
1902                  * The HW/FW hasn't got support for match on MAC addresses in
1903                  * outer rules yet (this will change). Match on VLAN presence
1904                  * isn't supported either. Ignore these match criteria.
1905                  */
1906                 memcpy(&override_mask, mask, sizeof(override_mask));
1907                 memset(&override_mask.hdr.dst_addr, 0,
1908                        sizeof(override_mask.hdr.dst_addr));
1909                 memset(&override_mask.hdr.src_addr, 0,
1910                        sizeof(override_mask.hdr.src_addr));
1911                 override_mask.has_vlan = 0;
1912
1913                 mask = (const uint8_t *)&override_mask;
1914         }
1915
1916         if (spec != NULL) {
1917                 struct sfc_mae_pattern_data *pdata = &ctx_mae->pattern_data;
1918                 struct sfc_mae_ethertype *ethertypes = pdata->ethertypes;
1919                 const struct rte_flow_item_eth *item_spec;
1920                 const struct rte_flow_item_eth *item_mask;
1921
1922                 item_spec = (const struct rte_flow_item_eth *)spec;
1923                 item_mask = (const struct rte_flow_item_eth *)mask;
1924
1925                 /*
1926                  * Remember various match criteria in the parsing context.
1927                  * sfc_mae_rule_process_pattern_data() will consider them
1928                  * altogether when the rest of the items have been parsed.
1929                  */
1930                 ethertypes[0].value = item_spec->type;
1931                 ethertypes[0].mask = item_mask->type;
1932                 if (item_mask->has_vlan) {
1933                         pdata->has_ovlan_mask = B_TRUE;
1934                         if (item_spec->has_vlan)
1935                                 pdata->has_ovlan_value = B_TRUE;
1936                 }
1937         } else {
1938                 /*
1939                  * The specification is empty. The overall pattern
1940                  * validity will be enforced at the end of parsing.
1941                  * See sfc_mae_rule_process_pattern_data().
1942                  */
1943                 return 0;
1944         }
1945
1946         return sfc_mae_parse_item(flocs_eth, RTE_DIM(flocs_eth), spec, mask,
1947                                   ctx_mae, error);
1948 }
1949
1950 static const struct sfc_mae_field_locator flocs_vlan[] = {
1951         /* Outermost tag */
1952         {
1953                 EFX_MAE_FIELD_VLAN0_TCI_BE,
1954                 RTE_SIZEOF_FIELD(struct rte_flow_item_vlan, tci),
1955                 offsetof(struct rte_flow_item_vlan, tci),
1956         },
1957         {
1958                 /*
1959                  * This locator is used only for building supported fields mask.
1960                  * The field is handled by sfc_mae_rule_process_pattern_data().
1961                  */
1962                 SFC_MAE_FIELD_HANDLING_DEFERRED,
1963                 RTE_SIZEOF_FIELD(struct rte_flow_item_vlan, inner_type),
1964                 offsetof(struct rte_flow_item_vlan, inner_type),
1965         },
1966
1967         /* Innermost tag */
1968         {
1969                 EFX_MAE_FIELD_VLAN1_TCI_BE,
1970                 RTE_SIZEOF_FIELD(struct rte_flow_item_vlan, tci),
1971                 offsetof(struct rte_flow_item_vlan, tci),
1972         },
1973         {
1974                 /*
1975                  * This locator is used only for building supported fields mask.
1976                  * The field is handled by sfc_mae_rule_process_pattern_data().
1977                  */
1978                 SFC_MAE_FIELD_HANDLING_DEFERRED,
1979                 RTE_SIZEOF_FIELD(struct rte_flow_item_vlan, inner_type),
1980                 offsetof(struct rte_flow_item_vlan, inner_type),
1981         },
1982 };
1983
1984 static int
1985 sfc_mae_rule_parse_item_vlan(const struct rte_flow_item *item,
1986                              struct sfc_flow_parse_ctx *ctx,
1987                              struct rte_flow_error *error)
1988 {
1989         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
1990         struct sfc_mae_pattern_data *pdata = &ctx_mae->pattern_data;
1991         boolean_t *has_vlan_mp_by_nb_tags[SFC_MAE_MATCH_VLAN_MAX_NTAGS] = {
1992                 &pdata->has_ovlan_mask,
1993                 &pdata->has_ivlan_mask,
1994         };
1995         boolean_t *has_vlan_vp_by_nb_tags[SFC_MAE_MATCH_VLAN_MAX_NTAGS] = {
1996                 &pdata->has_ovlan_value,
1997                 &pdata->has_ivlan_value,
1998         };
1999         boolean_t *cur_tag_presence_bit_mp;
2000         boolean_t *cur_tag_presence_bit_vp;
2001         const struct sfc_mae_field_locator *flocs;
2002         struct rte_flow_item_vlan supp_mask;
2003         const uint8_t *spec = NULL;
2004         const uint8_t *mask = NULL;
2005         unsigned int nb_flocs;
2006         int rc;
2007
2008         RTE_BUILD_BUG_ON(SFC_MAE_MATCH_VLAN_MAX_NTAGS != 2);
2009
2010         if (pdata->nb_vlan_tags == SFC_MAE_MATCH_VLAN_MAX_NTAGS) {
2011                 return rte_flow_error_set(error, ENOTSUP,
2012                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
2013                                 "Can't match that many VLAN tags");
2014         }
2015
2016         cur_tag_presence_bit_mp = has_vlan_mp_by_nb_tags[pdata->nb_vlan_tags];
2017         cur_tag_presence_bit_vp = has_vlan_vp_by_nb_tags[pdata->nb_vlan_tags];
2018
2019         if (*cur_tag_presence_bit_mp == B_TRUE &&
2020             *cur_tag_presence_bit_vp == B_FALSE) {
2021                 return rte_flow_error_set(error, EINVAL,
2022                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
2023                                 "The previous item enforces no (more) VLAN, "
2024                                 "so the current item (VLAN) must not exist");
2025         }
2026
2027         nb_flocs = RTE_DIM(flocs_vlan) / SFC_MAE_MATCH_VLAN_MAX_NTAGS;
2028         flocs = flocs_vlan + pdata->nb_vlan_tags * nb_flocs;
2029
2030         sfc_mae_item_build_supp_mask(flocs, nb_flocs,
2031                                      &supp_mask, sizeof(supp_mask));
2032         /*
2033          * This only means that the field is supported by the driver and libefx.
2034          * Support on NIC level will be checked when all items have been parsed.
2035          */
2036         supp_mask.has_more_vlan = 1;
2037
2038         rc = sfc_flow_parse_init(item,
2039                                  (const void **)&spec, (const void **)&mask,
2040                                  (const void *)&supp_mask,
2041                                  &rte_flow_item_vlan_mask,
2042                                  sizeof(struct rte_flow_item_vlan), error);
2043         if (rc != 0)
2044                 return rc;
2045
2046         if (spec != NULL) {
2047                 struct sfc_mae_ethertype *et = pdata->ethertypes;
2048                 const struct rte_flow_item_vlan *item_spec;
2049                 const struct rte_flow_item_vlan *item_mask;
2050
2051                 item_spec = (const struct rte_flow_item_vlan *)spec;
2052                 item_mask = (const struct rte_flow_item_vlan *)mask;
2053
2054                 /*
2055                  * Remember various match criteria in the parsing context.
2056                  * sfc_mae_rule_process_pattern_data() will consider them
2057                  * altogether when the rest of the items have been parsed.
2058                  */
2059                 et[pdata->nb_vlan_tags + 1].value = item_spec->inner_type;
2060                 et[pdata->nb_vlan_tags + 1].mask = item_mask->inner_type;
2061                 pdata->tci_masks[pdata->nb_vlan_tags] = item_mask->tci;
2062                 if (item_mask->has_more_vlan) {
2063                         if (pdata->nb_vlan_tags ==
2064                             SFC_MAE_MATCH_VLAN_MAX_NTAGS) {
2065                                 return rte_flow_error_set(error, ENOTSUP,
2066                                         RTE_FLOW_ERROR_TYPE_ITEM, item,
2067                                         "Can't use 'has_more_vlan' in "
2068                                         "the second item VLAN");
2069                         }
2070                         pdata->has_ivlan_mask = B_TRUE;
2071                         if (item_spec->has_more_vlan)
2072                                 pdata->has_ivlan_value = B_TRUE;
2073                 }
2074
2075                 /* Convert TCI to MAE representation right now. */
2076                 rc = sfc_mae_parse_item(flocs, nb_flocs, spec, mask,
2077                                         ctx_mae, error);
2078                 if (rc != 0)
2079                         return rc;
2080         }
2081
2082         ++(pdata->nb_vlan_tags);
2083
2084         return 0;
2085 }
2086
2087 static const struct sfc_mae_field_locator flocs_ipv4[] = {
2088         {
2089                 EFX_MAE_FIELD_SRC_IP4_BE,
2090                 RTE_SIZEOF_FIELD(struct rte_flow_item_ipv4, hdr.src_addr),
2091                 offsetof(struct rte_flow_item_ipv4, hdr.src_addr),
2092         },
2093         {
2094                 EFX_MAE_FIELD_DST_IP4_BE,
2095                 RTE_SIZEOF_FIELD(struct rte_flow_item_ipv4, hdr.dst_addr),
2096                 offsetof(struct rte_flow_item_ipv4, hdr.dst_addr),
2097         },
2098         {
2099                 /*
2100                  * This locator is used only for building supported fields mask.
2101                  * The field is handled by sfc_mae_rule_process_pattern_data().
2102                  */
2103                 SFC_MAE_FIELD_HANDLING_DEFERRED,
2104                 RTE_SIZEOF_FIELD(struct rte_flow_item_ipv4, hdr.next_proto_id),
2105                 offsetof(struct rte_flow_item_ipv4, hdr.next_proto_id),
2106         },
2107         {
2108                 EFX_MAE_FIELD_IP_TOS,
2109                 RTE_SIZEOF_FIELD(struct rte_flow_item_ipv4,
2110                                  hdr.type_of_service),
2111                 offsetof(struct rte_flow_item_ipv4, hdr.type_of_service),
2112         },
2113         {
2114                 EFX_MAE_FIELD_IP_TTL,
2115                 RTE_SIZEOF_FIELD(struct rte_flow_item_ipv4, hdr.time_to_live),
2116                 offsetof(struct rte_flow_item_ipv4, hdr.time_to_live),
2117         },
2118 };
2119
2120 static int
2121 sfc_mae_rule_parse_item_ipv4(const struct rte_flow_item *item,
2122                              struct sfc_flow_parse_ctx *ctx,
2123                              struct rte_flow_error *error)
2124 {
2125         rte_be16_t ethertype_ipv4_be = RTE_BE16(RTE_ETHER_TYPE_IPV4);
2126         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
2127         struct sfc_mae_pattern_data *pdata = &ctx_mae->pattern_data;
2128         struct rte_flow_item_ipv4 supp_mask;
2129         const uint8_t *spec = NULL;
2130         const uint8_t *mask = NULL;
2131         int rc;
2132
2133         sfc_mae_item_build_supp_mask(flocs_ipv4, RTE_DIM(flocs_ipv4),
2134                                      &supp_mask, sizeof(supp_mask));
2135
2136         rc = sfc_flow_parse_init(item,
2137                                  (const void **)&spec, (const void **)&mask,
2138                                  (const void *)&supp_mask,
2139                                  &rte_flow_item_ipv4_mask,
2140                                  sizeof(struct rte_flow_item_ipv4), error);
2141         if (rc != 0)
2142                 return rc;
2143
2144         pdata->innermost_ethertype_restriction.value = ethertype_ipv4_be;
2145         pdata->innermost_ethertype_restriction.mask = RTE_BE16(0xffff);
2146
2147         if (spec != NULL) {
2148                 const struct rte_flow_item_ipv4 *item_spec;
2149                 const struct rte_flow_item_ipv4 *item_mask;
2150
2151                 item_spec = (const struct rte_flow_item_ipv4 *)spec;
2152                 item_mask = (const struct rte_flow_item_ipv4 *)mask;
2153
2154                 pdata->l3_next_proto_value = item_spec->hdr.next_proto_id;
2155                 pdata->l3_next_proto_mask = item_mask->hdr.next_proto_id;
2156         } else {
2157                 return 0;
2158         }
2159
2160         return sfc_mae_parse_item(flocs_ipv4, RTE_DIM(flocs_ipv4), spec, mask,
2161                                   ctx_mae, error);
2162 }
2163
2164 static const struct sfc_mae_field_locator flocs_ipv6[] = {
2165         {
2166                 EFX_MAE_FIELD_SRC_IP6_BE,
2167                 RTE_SIZEOF_FIELD(struct rte_flow_item_ipv6, hdr.src_addr),
2168                 offsetof(struct rte_flow_item_ipv6, hdr.src_addr),
2169         },
2170         {
2171                 EFX_MAE_FIELD_DST_IP6_BE,
2172                 RTE_SIZEOF_FIELD(struct rte_flow_item_ipv6, hdr.dst_addr),
2173                 offsetof(struct rte_flow_item_ipv6, hdr.dst_addr),
2174         },
2175         {
2176                 /*
2177                  * This locator is used only for building supported fields mask.
2178                  * The field is handled by sfc_mae_rule_process_pattern_data().
2179                  */
2180                 SFC_MAE_FIELD_HANDLING_DEFERRED,
2181                 RTE_SIZEOF_FIELD(struct rte_flow_item_ipv6, hdr.proto),
2182                 offsetof(struct rte_flow_item_ipv6, hdr.proto),
2183         },
2184         {
2185                 EFX_MAE_FIELD_IP_TTL,
2186                 RTE_SIZEOF_FIELD(struct rte_flow_item_ipv6, hdr.hop_limits),
2187                 offsetof(struct rte_flow_item_ipv6, hdr.hop_limits),
2188         },
2189 };
2190
2191 static int
2192 sfc_mae_rule_parse_item_ipv6(const struct rte_flow_item *item,
2193                              struct sfc_flow_parse_ctx *ctx,
2194                              struct rte_flow_error *error)
2195 {
2196         rte_be16_t ethertype_ipv6_be = RTE_BE16(RTE_ETHER_TYPE_IPV6);
2197         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
2198         const efx_mae_field_id_t *fremap = ctx_mae->field_ids_remap;
2199         struct sfc_mae_pattern_data *pdata = &ctx_mae->pattern_data;
2200         struct rte_flow_item_ipv6 supp_mask;
2201         const uint8_t *spec = NULL;
2202         const uint8_t *mask = NULL;
2203         rte_be32_t vtc_flow_be;
2204         uint32_t vtc_flow;
2205         uint8_t tc_value;
2206         uint8_t tc_mask;
2207         int rc;
2208
2209         sfc_mae_item_build_supp_mask(flocs_ipv6, RTE_DIM(flocs_ipv6),
2210                                      &supp_mask, sizeof(supp_mask));
2211
2212         vtc_flow_be = RTE_BE32(RTE_IPV6_HDR_TC_MASK);
2213         memcpy(&supp_mask, &vtc_flow_be, sizeof(vtc_flow_be));
2214
2215         rc = sfc_flow_parse_init(item,
2216                                  (const void **)&spec, (const void **)&mask,
2217                                  (const void *)&supp_mask,
2218                                  &rte_flow_item_ipv6_mask,
2219                                  sizeof(struct rte_flow_item_ipv6), error);
2220         if (rc != 0)
2221                 return rc;
2222
2223         pdata->innermost_ethertype_restriction.value = ethertype_ipv6_be;
2224         pdata->innermost_ethertype_restriction.mask = RTE_BE16(0xffff);
2225
2226         if (spec != NULL) {
2227                 const struct rte_flow_item_ipv6 *item_spec;
2228                 const struct rte_flow_item_ipv6 *item_mask;
2229
2230                 item_spec = (const struct rte_flow_item_ipv6 *)spec;
2231                 item_mask = (const struct rte_flow_item_ipv6 *)mask;
2232
2233                 pdata->l3_next_proto_value = item_spec->hdr.proto;
2234                 pdata->l3_next_proto_mask = item_mask->hdr.proto;
2235         } else {
2236                 return 0;
2237         }
2238
2239         rc = sfc_mae_parse_item(flocs_ipv6, RTE_DIM(flocs_ipv6), spec, mask,
2240                                 ctx_mae, error);
2241         if (rc != 0)
2242                 return rc;
2243
2244         memcpy(&vtc_flow_be, spec, sizeof(vtc_flow_be));
2245         vtc_flow = rte_be_to_cpu_32(vtc_flow_be);
2246         tc_value = (vtc_flow & RTE_IPV6_HDR_TC_MASK) >> RTE_IPV6_HDR_TC_SHIFT;
2247
2248         memcpy(&vtc_flow_be, mask, sizeof(vtc_flow_be));
2249         vtc_flow = rte_be_to_cpu_32(vtc_flow_be);
2250         tc_mask = (vtc_flow & RTE_IPV6_HDR_TC_MASK) >> RTE_IPV6_HDR_TC_SHIFT;
2251
2252         rc = efx_mae_match_spec_field_set(ctx_mae->match_spec,
2253                                           fremap[EFX_MAE_FIELD_IP_TOS],
2254                                           sizeof(tc_value), &tc_value,
2255                                           sizeof(tc_mask), &tc_mask);
2256         if (rc != 0) {
2257                 return rte_flow_error_set(error, rc, RTE_FLOW_ERROR_TYPE_ITEM,
2258                                 NULL, "Failed to process item fields");
2259         }
2260
2261         return 0;
2262 }
2263
2264 static const struct sfc_mae_field_locator flocs_tcp[] = {
2265         {
2266                 EFX_MAE_FIELD_L4_SPORT_BE,
2267                 RTE_SIZEOF_FIELD(struct rte_flow_item_tcp, hdr.src_port),
2268                 offsetof(struct rte_flow_item_tcp, hdr.src_port),
2269         },
2270         {
2271                 EFX_MAE_FIELD_L4_DPORT_BE,
2272                 RTE_SIZEOF_FIELD(struct rte_flow_item_tcp, hdr.dst_port),
2273                 offsetof(struct rte_flow_item_tcp, hdr.dst_port),
2274         },
2275         {
2276                 EFX_MAE_FIELD_TCP_FLAGS_BE,
2277                 /*
2278                  * The values have been picked intentionally since the
2279                  * target MAE field is oversize (16 bit). This mapping
2280                  * relies on the fact that the MAE field is big-endian.
2281                  */
2282                 RTE_SIZEOF_FIELD(struct rte_flow_item_tcp, hdr.data_off) +
2283                 RTE_SIZEOF_FIELD(struct rte_flow_item_tcp, hdr.tcp_flags),
2284                 offsetof(struct rte_flow_item_tcp, hdr.data_off),
2285         },
2286 };
2287
2288 static int
2289 sfc_mae_rule_parse_item_tcp(const struct rte_flow_item *item,
2290                             struct sfc_flow_parse_ctx *ctx,
2291                             struct rte_flow_error *error)
2292 {
2293         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
2294         struct sfc_mae_pattern_data *pdata = &ctx_mae->pattern_data;
2295         struct rte_flow_item_tcp supp_mask;
2296         const uint8_t *spec = NULL;
2297         const uint8_t *mask = NULL;
2298         int rc;
2299
2300         /*
2301          * When encountered among outermost items, item TCP is invalid.
2302          * Check which match specification is being constructed now.
2303          */
2304         if (ctx_mae->match_spec != ctx_mae->match_spec_action) {
2305                 return rte_flow_error_set(error, EINVAL,
2306                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2307                                           "TCP in outer frame is invalid");
2308         }
2309
2310         sfc_mae_item_build_supp_mask(flocs_tcp, RTE_DIM(flocs_tcp),
2311                                      &supp_mask, sizeof(supp_mask));
2312
2313         rc = sfc_flow_parse_init(item,
2314                                  (const void **)&spec, (const void **)&mask,
2315                                  (const void *)&supp_mask,
2316                                  &rte_flow_item_tcp_mask,
2317                                  sizeof(struct rte_flow_item_tcp), error);
2318         if (rc != 0)
2319                 return rc;
2320
2321         pdata->l3_next_proto_restriction_value = IPPROTO_TCP;
2322         pdata->l3_next_proto_restriction_mask = 0xff;
2323
2324         if (spec == NULL)
2325                 return 0;
2326
2327         return sfc_mae_parse_item(flocs_tcp, RTE_DIM(flocs_tcp), spec, mask,
2328                                   ctx_mae, error);
2329 }
2330
2331 static const struct sfc_mae_field_locator flocs_udp[] = {
2332         {
2333                 EFX_MAE_FIELD_L4_SPORT_BE,
2334                 RTE_SIZEOF_FIELD(struct rte_flow_item_udp, hdr.src_port),
2335                 offsetof(struct rte_flow_item_udp, hdr.src_port),
2336         },
2337         {
2338                 EFX_MAE_FIELD_L4_DPORT_BE,
2339                 RTE_SIZEOF_FIELD(struct rte_flow_item_udp, hdr.dst_port),
2340                 offsetof(struct rte_flow_item_udp, hdr.dst_port),
2341         },
2342 };
2343
2344 static int
2345 sfc_mae_rule_parse_item_udp(const struct rte_flow_item *item,
2346                             struct sfc_flow_parse_ctx *ctx,
2347                             struct rte_flow_error *error)
2348 {
2349         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
2350         struct sfc_mae_pattern_data *pdata = &ctx_mae->pattern_data;
2351         struct rte_flow_item_udp supp_mask;
2352         const uint8_t *spec = NULL;
2353         const uint8_t *mask = NULL;
2354         int rc;
2355
2356         sfc_mae_item_build_supp_mask(flocs_udp, RTE_DIM(flocs_udp),
2357                                      &supp_mask, sizeof(supp_mask));
2358
2359         rc = sfc_flow_parse_init(item,
2360                                  (const void **)&spec, (const void **)&mask,
2361                                  (const void *)&supp_mask,
2362                                  &rte_flow_item_udp_mask,
2363                                  sizeof(struct rte_flow_item_udp), error);
2364         if (rc != 0)
2365                 return rc;
2366
2367         pdata->l3_next_proto_restriction_value = IPPROTO_UDP;
2368         pdata->l3_next_proto_restriction_mask = 0xff;
2369
2370         if (spec == NULL)
2371                 return 0;
2372
2373         return sfc_mae_parse_item(flocs_udp, RTE_DIM(flocs_udp), spec, mask,
2374                                   ctx_mae, error);
2375 }
2376
2377 static const struct sfc_mae_field_locator flocs_tunnel[] = {
2378         {
2379                 /*
2380                  * The size and offset values are relevant
2381                  * for Geneve and NVGRE, too.
2382                  */
2383                 .size = RTE_SIZEOF_FIELD(struct rte_flow_item_vxlan, vni),
2384                 .ofst = offsetof(struct rte_flow_item_vxlan, vni),
2385         },
2386 };
2387
2388 /*
2389  * An auxiliary registry which allows using non-encap. field IDs
2390  * directly when building a match specification of type ACTION.
2391  *
2392  * See sfc_mae_rule_parse_pattern() and sfc_mae_rule_parse_item_tunnel().
2393  */
2394 static const efx_mae_field_id_t field_ids_no_remap[] = {
2395 #define FIELD_ID_NO_REMAP(_field) \
2396         [EFX_MAE_FIELD_##_field] = EFX_MAE_FIELD_##_field
2397
2398         FIELD_ID_NO_REMAP(ETHER_TYPE_BE),
2399         FIELD_ID_NO_REMAP(ETH_SADDR_BE),
2400         FIELD_ID_NO_REMAP(ETH_DADDR_BE),
2401         FIELD_ID_NO_REMAP(VLAN0_TCI_BE),
2402         FIELD_ID_NO_REMAP(VLAN0_PROTO_BE),
2403         FIELD_ID_NO_REMAP(VLAN1_TCI_BE),
2404         FIELD_ID_NO_REMAP(VLAN1_PROTO_BE),
2405         FIELD_ID_NO_REMAP(SRC_IP4_BE),
2406         FIELD_ID_NO_REMAP(DST_IP4_BE),
2407         FIELD_ID_NO_REMAP(IP_PROTO),
2408         FIELD_ID_NO_REMAP(IP_TOS),
2409         FIELD_ID_NO_REMAP(IP_TTL),
2410         FIELD_ID_NO_REMAP(SRC_IP6_BE),
2411         FIELD_ID_NO_REMAP(DST_IP6_BE),
2412         FIELD_ID_NO_REMAP(L4_SPORT_BE),
2413         FIELD_ID_NO_REMAP(L4_DPORT_BE),
2414         FIELD_ID_NO_REMAP(TCP_FLAGS_BE),
2415         FIELD_ID_NO_REMAP(HAS_OVLAN),
2416         FIELD_ID_NO_REMAP(HAS_IVLAN),
2417
2418 #undef FIELD_ID_NO_REMAP
2419 };
2420
2421 /*
2422  * An auxiliary registry which allows using "ENC" field IDs
2423  * when building a match specification of type OUTER.
2424  *
2425  * See sfc_mae_rule_encap_parse_init().
2426  */
2427 static const efx_mae_field_id_t field_ids_remap_to_encap[] = {
2428 #define FIELD_ID_REMAP_TO_ENCAP(_field) \
2429         [EFX_MAE_FIELD_##_field] = EFX_MAE_FIELD_ENC_##_field
2430
2431         FIELD_ID_REMAP_TO_ENCAP(ETHER_TYPE_BE),
2432         FIELD_ID_REMAP_TO_ENCAP(ETH_SADDR_BE),
2433         FIELD_ID_REMAP_TO_ENCAP(ETH_DADDR_BE),
2434         FIELD_ID_REMAP_TO_ENCAP(VLAN0_TCI_BE),
2435         FIELD_ID_REMAP_TO_ENCAP(VLAN0_PROTO_BE),
2436         FIELD_ID_REMAP_TO_ENCAP(VLAN1_TCI_BE),
2437         FIELD_ID_REMAP_TO_ENCAP(VLAN1_PROTO_BE),
2438         FIELD_ID_REMAP_TO_ENCAP(SRC_IP4_BE),
2439         FIELD_ID_REMAP_TO_ENCAP(DST_IP4_BE),
2440         FIELD_ID_REMAP_TO_ENCAP(IP_PROTO),
2441         FIELD_ID_REMAP_TO_ENCAP(IP_TOS),
2442         FIELD_ID_REMAP_TO_ENCAP(IP_TTL),
2443         FIELD_ID_REMAP_TO_ENCAP(SRC_IP6_BE),
2444         FIELD_ID_REMAP_TO_ENCAP(DST_IP6_BE),
2445         FIELD_ID_REMAP_TO_ENCAP(L4_SPORT_BE),
2446         FIELD_ID_REMAP_TO_ENCAP(L4_DPORT_BE),
2447         FIELD_ID_REMAP_TO_ENCAP(HAS_OVLAN),
2448         FIELD_ID_REMAP_TO_ENCAP(HAS_IVLAN),
2449
2450 #undef FIELD_ID_REMAP_TO_ENCAP
2451 };
2452
2453 static int
2454 sfc_mae_rule_parse_item_tunnel(const struct rte_flow_item *item,
2455                                struct sfc_flow_parse_ctx *ctx,
2456                                struct rte_flow_error *error)
2457 {
2458         struct sfc_mae_parse_ctx *ctx_mae = ctx->mae;
2459         uint8_t vnet_id_v[sizeof(uint32_t)] = {0};
2460         uint8_t vnet_id_m[sizeof(uint32_t)] = {0};
2461         const struct rte_flow_item_vxlan *vxp;
2462         uint8_t supp_mask[sizeof(uint64_t)];
2463         const uint8_t *spec = NULL;
2464         const uint8_t *mask = NULL;
2465         int rc;
2466
2467         if (ctx_mae->ft_rule_type == SFC_FT_RULE_GROUP) {
2468                 /*
2469                  * As a workaround, pattern processing has started from
2470                  * this (tunnel) item. No pattern data to process yet.
2471                  */
2472         } else {
2473                 /*
2474                  * We're about to start processing inner frame items.
2475                  * Process pattern data that has been deferred so far
2476                  * and reset pattern data storage.
2477                  */
2478                 rc = sfc_mae_rule_process_pattern_data(ctx_mae, error);
2479                 if (rc != 0)
2480                         return rc;
2481         }
2482
2483         memset(&ctx_mae->pattern_data, 0, sizeof(ctx_mae->pattern_data));
2484
2485         sfc_mae_item_build_supp_mask(flocs_tunnel, RTE_DIM(flocs_tunnel),
2486                                      &supp_mask, sizeof(supp_mask));
2487
2488         /*
2489          * This tunnel item was preliminarily detected by
2490          * sfc_mae_rule_encap_parse_init(). Default mask
2491          * was also picked by that helper. Use it here.
2492          */
2493         rc = sfc_flow_parse_init(item,
2494                                  (const void **)&spec, (const void **)&mask,
2495                                  (const void *)&supp_mask,
2496                                  ctx_mae->tunnel_def_mask,
2497                                  ctx_mae->tunnel_def_mask_size,  error);
2498         if (rc != 0)
2499                 return rc;
2500
2501         /*
2502          * This item and later ones comprise a
2503          * match specification of type ACTION.
2504          */
2505         ctx_mae->match_spec = ctx_mae->match_spec_action;
2506
2507         /* This item and later ones use non-encap. EFX MAE field IDs. */
2508         ctx_mae->field_ids_remap = field_ids_no_remap;
2509
2510         if (spec == NULL)
2511                 return 0;
2512
2513         /*
2514          * Field EFX_MAE_FIELD_ENC_VNET_ID_BE is a 32-bit one.
2515          * Copy 24-bit VNI, which is BE, at offset 1 in it.
2516          * The extra byte is 0 both in the mask and in the value.
2517          */
2518         vxp = (const struct rte_flow_item_vxlan *)spec;
2519         memcpy(vnet_id_v + 1, &vxp->vni, sizeof(vxp->vni));
2520
2521         vxp = (const struct rte_flow_item_vxlan *)mask;
2522         memcpy(vnet_id_m + 1, &vxp->vni, sizeof(vxp->vni));
2523
2524         rc = efx_mae_match_spec_field_set(ctx_mae->match_spec,
2525                                           EFX_MAE_FIELD_ENC_VNET_ID_BE,
2526                                           sizeof(vnet_id_v), vnet_id_v,
2527                                           sizeof(vnet_id_m), vnet_id_m);
2528         if (rc != 0) {
2529                 rc = rte_flow_error_set(error, rc, RTE_FLOW_ERROR_TYPE_ITEM,
2530                                         item, "Failed to set VXLAN VNI");
2531         }
2532
2533         return rc;
2534 }
2535
2536 static const struct sfc_flow_item sfc_flow_items[] = {
2537         {
2538                 .type = RTE_FLOW_ITEM_TYPE_MARK,
2539                 .name = "MARK",
2540                 .prev_layer = SFC_FLOW_ITEM_ANY_LAYER,
2541                 .layer = SFC_FLOW_ITEM_ANY_LAYER,
2542                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2543                 .parse = sfc_mae_rule_parse_item_mark,
2544         },
2545         {
2546                 .type = RTE_FLOW_ITEM_TYPE_PORT_ID,
2547                 .name = "PORT_ID",
2548                 /*
2549                  * In terms of RTE flow, this item is a META one,
2550                  * and its position in the pattern is don't care.
2551                  */
2552                 .prev_layer = SFC_FLOW_ITEM_ANY_LAYER,
2553                 .layer = SFC_FLOW_ITEM_ANY_LAYER,
2554                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2555                 .parse = sfc_mae_rule_parse_item_port_id,
2556         },
2557         {
2558                 .type = RTE_FLOW_ITEM_TYPE_PORT_REPRESENTOR,
2559                 .name = "PORT_REPRESENTOR",
2560                 /*
2561                  * In terms of RTE flow, this item is a META one,
2562                  * and its position in the pattern is don't care.
2563                  */
2564                 .prev_layer = SFC_FLOW_ITEM_ANY_LAYER,
2565                 .layer = SFC_FLOW_ITEM_ANY_LAYER,
2566                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2567                 .parse = sfc_mae_rule_parse_item_ethdev_based,
2568         },
2569         {
2570                 .type = RTE_FLOW_ITEM_TYPE_REPRESENTED_PORT,
2571                 .name = "REPRESENTED_PORT",
2572                 /*
2573                  * In terms of RTE flow, this item is a META one,
2574                  * and its position in the pattern is don't care.
2575                  */
2576                 .prev_layer = SFC_FLOW_ITEM_ANY_LAYER,
2577                 .layer = SFC_FLOW_ITEM_ANY_LAYER,
2578                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2579                 .parse = sfc_mae_rule_parse_item_ethdev_based,
2580         },
2581         {
2582                 .type = RTE_FLOW_ITEM_TYPE_PHY_PORT,
2583                 .name = "PHY_PORT",
2584                 /*
2585                  * In terms of RTE flow, this item is a META one,
2586                  * and its position in the pattern is don't care.
2587                  */
2588                 .prev_layer = SFC_FLOW_ITEM_ANY_LAYER,
2589                 .layer = SFC_FLOW_ITEM_ANY_LAYER,
2590                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2591                 .parse = sfc_mae_rule_parse_item_phy_port,
2592         },
2593         {
2594                 .type = RTE_FLOW_ITEM_TYPE_PF,
2595                 .name = "PF",
2596                 /*
2597                  * In terms of RTE flow, this item is a META one,
2598                  * and its position in the pattern is don't care.
2599                  */
2600                 .prev_layer = SFC_FLOW_ITEM_ANY_LAYER,
2601                 .layer = SFC_FLOW_ITEM_ANY_LAYER,
2602                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2603                 .parse = sfc_mae_rule_parse_item_pf,
2604         },
2605         {
2606                 .type = RTE_FLOW_ITEM_TYPE_VF,
2607                 .name = "VF",
2608                 /*
2609                  * In terms of RTE flow, this item is a META one,
2610                  * and its position in the pattern is don't care.
2611                  */
2612                 .prev_layer = SFC_FLOW_ITEM_ANY_LAYER,
2613                 .layer = SFC_FLOW_ITEM_ANY_LAYER,
2614                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2615                 .parse = sfc_mae_rule_parse_item_vf,
2616         },
2617         {
2618                 .type = RTE_FLOW_ITEM_TYPE_ETH,
2619                 .name = "ETH",
2620                 .prev_layer = SFC_FLOW_ITEM_START_LAYER,
2621                 .layer = SFC_FLOW_ITEM_L2,
2622                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2623                 .parse = sfc_mae_rule_parse_item_eth,
2624         },
2625         {
2626                 .type = RTE_FLOW_ITEM_TYPE_VLAN,
2627                 .name = "VLAN",
2628                 .prev_layer = SFC_FLOW_ITEM_L2,
2629                 .layer = SFC_FLOW_ITEM_L2,
2630                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2631                 .parse = sfc_mae_rule_parse_item_vlan,
2632         },
2633         {
2634                 .type = RTE_FLOW_ITEM_TYPE_IPV4,
2635                 .name = "IPV4",
2636                 .prev_layer = SFC_FLOW_ITEM_L2,
2637                 .layer = SFC_FLOW_ITEM_L3,
2638                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2639                 .parse = sfc_mae_rule_parse_item_ipv4,
2640         },
2641         {
2642                 .type = RTE_FLOW_ITEM_TYPE_IPV6,
2643                 .name = "IPV6",
2644                 .prev_layer = SFC_FLOW_ITEM_L2,
2645                 .layer = SFC_FLOW_ITEM_L3,
2646                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2647                 .parse = sfc_mae_rule_parse_item_ipv6,
2648         },
2649         {
2650                 .type = RTE_FLOW_ITEM_TYPE_TCP,
2651                 .name = "TCP",
2652                 .prev_layer = SFC_FLOW_ITEM_L3,
2653                 .layer = SFC_FLOW_ITEM_L4,
2654                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2655                 .parse = sfc_mae_rule_parse_item_tcp,
2656         },
2657         {
2658                 .type = RTE_FLOW_ITEM_TYPE_UDP,
2659                 .name = "UDP",
2660                 .prev_layer = SFC_FLOW_ITEM_L3,
2661                 .layer = SFC_FLOW_ITEM_L4,
2662                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2663                 .parse = sfc_mae_rule_parse_item_udp,
2664         },
2665         {
2666                 .type = RTE_FLOW_ITEM_TYPE_VXLAN,
2667                 .name = "VXLAN",
2668                 .prev_layer = SFC_FLOW_ITEM_L4,
2669                 .layer = SFC_FLOW_ITEM_START_LAYER,
2670                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2671                 .parse = sfc_mae_rule_parse_item_tunnel,
2672         },
2673         {
2674                 .type = RTE_FLOW_ITEM_TYPE_GENEVE,
2675                 .name = "GENEVE",
2676                 .prev_layer = SFC_FLOW_ITEM_L4,
2677                 .layer = SFC_FLOW_ITEM_START_LAYER,
2678                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2679                 .parse = sfc_mae_rule_parse_item_tunnel,
2680         },
2681         {
2682                 .type = RTE_FLOW_ITEM_TYPE_NVGRE,
2683                 .name = "NVGRE",
2684                 .prev_layer = SFC_FLOW_ITEM_L3,
2685                 .layer = SFC_FLOW_ITEM_START_LAYER,
2686                 .ctx_type = SFC_FLOW_PARSE_CTX_MAE,
2687                 .parse = sfc_mae_rule_parse_item_tunnel,
2688         },
2689 };
2690
2691 static int
2692 sfc_mae_rule_process_outer(struct sfc_adapter *sa,
2693                            struct sfc_mae_parse_ctx *ctx,
2694                            struct sfc_mae_outer_rule **rulep,
2695                            struct rte_flow_error *error)
2696 {
2697         efx_mae_rule_id_t invalid_rule_id = { .id = EFX_MAE_RSRC_ID_INVALID };
2698         int rc;
2699
2700         if (ctx->encap_type == EFX_TUNNEL_PROTOCOL_NONE) {
2701                 *rulep = NULL;
2702                 goto no_or_id;
2703         }
2704
2705         SFC_ASSERT(ctx->match_spec_outer != NULL);
2706
2707         if (!efx_mae_match_spec_is_valid(sa->nic, ctx->match_spec_outer)) {
2708                 return rte_flow_error_set(error, ENOTSUP,
2709                                           RTE_FLOW_ERROR_TYPE_ITEM, NULL,
2710                                           "Inconsistent pattern (outer)");
2711         }
2712
2713         *rulep = sfc_mae_outer_rule_attach(sa, ctx->match_spec_outer,
2714                                            ctx->encap_type);
2715         if (*rulep != NULL) {
2716                 efx_mae_match_spec_fini(sa->nic, ctx->match_spec_outer);
2717         } else {
2718                 rc = sfc_mae_outer_rule_add(sa, ctx->match_spec_outer,
2719                                             ctx->encap_type, rulep);
2720                 if (rc != 0) {
2721                         return rte_flow_error_set(error, rc,
2722                                         RTE_FLOW_ERROR_TYPE_ITEM, NULL,
2723                                         "Failed to process the pattern");
2724                 }
2725         }
2726
2727         /* The spec has now been tracked by the outer rule entry. */
2728         ctx->match_spec_outer = NULL;
2729
2730 no_or_id:
2731         switch (ctx->ft_rule_type) {
2732         case SFC_FT_RULE_NONE:
2733                 break;
2734         case SFC_FT_RULE_JUMP:
2735                 /* No action rule */
2736                 return 0;
2737         case SFC_FT_RULE_GROUP:
2738                 /*
2739                  * Match on recirculation ID rather than
2740                  * on the outer rule allocation handle.
2741                  */
2742                 rc = efx_mae_match_spec_recirc_id_set(ctx->match_spec_action,
2743                                         SFC_FT_ID_TO_TUNNEL_MARK(ctx->ft->id));
2744                 if (rc != 0) {
2745                         return rte_flow_error_set(error, rc,
2746                                         RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
2747                                         "tunnel offload: GROUP: AR: failed to request match on RECIRC_ID");
2748                 }
2749                 return 0;
2750         default:
2751                 SFC_ASSERT(B_FALSE);
2752         }
2753
2754         /*
2755          * In MAE, lookup sequence comprises outer parse, outer rule lookup,
2756          * inner parse (when some outer rule is hit) and action rule lookup.
2757          * If the currently processed flow does not come with an outer rule,
2758          * its action rule must be available only for packets which miss in
2759          * outer rule table. Set OR_ID match field to 0xffffffff/0xffffffff
2760          * in the action rule specification; this ensures correct behaviour.
2761          *
2762          * If, on the other hand, this flow does have an outer rule, its ID
2763          * may be unknown at the moment (not yet allocated), but OR_ID mask
2764          * has to be set to 0xffffffff anyway for correct class comparisons.
2765          * When the outer rule has been allocated, this match field will be
2766          * overridden by sfc_mae_outer_rule_enable() to use the right value.
2767          */
2768         rc = efx_mae_match_spec_outer_rule_id_set(ctx->match_spec_action,
2769                                                   &invalid_rule_id);
2770         if (rc != 0) {
2771                 if (*rulep != NULL)
2772                         sfc_mae_outer_rule_del(sa, *rulep);
2773
2774                 *rulep = NULL;
2775
2776                 return rte_flow_error_set(error, rc,
2777                                           RTE_FLOW_ERROR_TYPE_ITEM, NULL,
2778                                           "Failed to process the pattern");
2779         }
2780
2781         return 0;
2782 }
2783
2784 static int
2785 sfc_mae_rule_preparse_item_mark(const struct rte_flow_item_mark *spec,
2786                                 struct sfc_mae_parse_ctx *ctx)
2787 {
2788         struct sfc_flow_tunnel *ft;
2789         uint32_t user_mark;
2790
2791         if (spec == NULL) {
2792                 sfc_err(ctx->sa, "tunnel offload: GROUP: NULL spec in item MARK");
2793                 return EINVAL;
2794         }
2795
2796         ft = sfc_flow_tunnel_pick(ctx->sa, spec->id);
2797         if (ft == NULL) {
2798                 sfc_err(ctx->sa, "tunnel offload: GROUP: invalid tunnel");
2799                 return EINVAL;
2800         }
2801
2802         if (ft->refcnt == 0) {
2803                 sfc_err(ctx->sa, "tunnel offload: GROUP: tunnel=%u does not exist",
2804                         ft->id);
2805                 return ENOENT;
2806         }
2807
2808         user_mark = SFC_FT_GET_USER_MARK(spec->id);
2809         if (user_mark != 0) {
2810                 sfc_err(ctx->sa, "tunnel offload: GROUP: invalid item MARK");
2811                 return EINVAL;
2812         }
2813
2814         sfc_dbg(ctx->sa, "tunnel offload: GROUP: detected");
2815
2816         ctx->ft_rule_type = SFC_FT_RULE_GROUP;
2817         ctx->ft = ft;
2818
2819         return 0;
2820 }
2821
2822 static int
2823 sfc_mae_rule_encap_parse_init(struct sfc_adapter *sa,
2824                               struct sfc_mae_parse_ctx *ctx,
2825                               struct rte_flow_error *error)
2826 {
2827         const struct rte_flow_item *pattern = ctx->pattern;
2828         struct sfc_mae *mae = &sa->mae;
2829         uint8_t recirc_id = 0;
2830         int rc;
2831
2832         if (pattern == NULL) {
2833                 rte_flow_error_set(error, EINVAL,
2834                                    RTE_FLOW_ERROR_TYPE_ITEM_NUM, NULL,
2835                                    "NULL pattern");
2836                 return -rte_errno;
2837         }
2838
2839         for (;;) {
2840                 switch (pattern->type) {
2841                 case RTE_FLOW_ITEM_TYPE_MARK:
2842                         rc = sfc_mae_rule_preparse_item_mark(pattern->spec,
2843                                                              ctx);
2844                         if (rc != 0) {
2845                                 return rte_flow_error_set(error, rc,
2846                                                   RTE_FLOW_ERROR_TYPE_ITEM,
2847                                                   pattern, "tunnel offload: GROUP: invalid item MARK");
2848                         }
2849                         ++pattern;
2850                         continue;
2851                 case RTE_FLOW_ITEM_TYPE_VXLAN:
2852                         ctx->encap_type = EFX_TUNNEL_PROTOCOL_VXLAN;
2853                         ctx->tunnel_def_mask = &rte_flow_item_vxlan_mask;
2854                         ctx->tunnel_def_mask_size =
2855                                 sizeof(rte_flow_item_vxlan_mask);
2856                         break;
2857                 case RTE_FLOW_ITEM_TYPE_GENEVE:
2858                         ctx->encap_type = EFX_TUNNEL_PROTOCOL_GENEVE;
2859                         ctx->tunnel_def_mask = &rte_flow_item_geneve_mask;
2860                         ctx->tunnel_def_mask_size =
2861                                 sizeof(rte_flow_item_geneve_mask);
2862                         break;
2863                 case RTE_FLOW_ITEM_TYPE_NVGRE:
2864                         ctx->encap_type = EFX_TUNNEL_PROTOCOL_NVGRE;
2865                         ctx->tunnel_def_mask = &rte_flow_item_nvgre_mask;
2866                         ctx->tunnel_def_mask_size =
2867                                 sizeof(rte_flow_item_nvgre_mask);
2868                         break;
2869                 case RTE_FLOW_ITEM_TYPE_END:
2870                         break;
2871                 default:
2872                         ++pattern;
2873                         continue;
2874                 };
2875
2876                 break;
2877         }
2878
2879         switch (ctx->ft_rule_type) {
2880         case SFC_FT_RULE_NONE:
2881                 if (pattern->type == RTE_FLOW_ITEM_TYPE_END)
2882                         return 0;
2883                 break;
2884         case SFC_FT_RULE_JUMP:
2885                 if (pattern->type != RTE_FLOW_ITEM_TYPE_END) {
2886                         return rte_flow_error_set(error, ENOTSUP,
2887                                                   RTE_FLOW_ERROR_TYPE_ITEM,
2888                                                   pattern, "tunnel offload: JUMP: invalid item");
2889                 }
2890                 ctx->encap_type = ctx->ft->encap_type;
2891                 break;
2892         case SFC_FT_RULE_GROUP:
2893                 if (pattern->type == RTE_FLOW_ITEM_TYPE_END) {
2894                         return rte_flow_error_set(error, EINVAL,
2895                                                   RTE_FLOW_ERROR_TYPE_ITEM,
2896                                                   NULL, "tunnel offload: GROUP: missing tunnel item");
2897                 } else if (ctx->encap_type != ctx->ft->encap_type) {
2898                         return rte_flow_error_set(error, EINVAL,
2899                                                   RTE_FLOW_ERROR_TYPE_ITEM,
2900                                                   pattern, "tunnel offload: GROUP: tunnel type mismatch");
2901                 }
2902
2903                 /*
2904                  * The HW/FW hasn't got support for the use of "ENC" fields in
2905                  * action rules (except the VNET_ID one) yet. As a workaround,
2906                  * start parsing the pattern from the tunnel item.
2907                  */
2908                 ctx->pattern = pattern;
2909                 break;
2910         default:
2911                 SFC_ASSERT(B_FALSE);
2912                 break;
2913         }
2914
2915         if ((mae->encap_types_supported & (1U << ctx->encap_type)) == 0) {
2916                 return rte_flow_error_set(error, ENOTSUP,
2917                                           RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
2918                                           "OR: unsupported tunnel type");
2919         }
2920
2921         switch (ctx->ft_rule_type) {
2922         case SFC_FT_RULE_JUMP:
2923                 recirc_id = SFC_FT_ID_TO_TUNNEL_MARK(ctx->ft->id);
2924                 /* FALLTHROUGH */
2925         case SFC_FT_RULE_NONE:
2926                 if (ctx->priority >= mae->nb_outer_rule_prios_max) {
2927                         return rte_flow_error_set(error, ENOTSUP,
2928                                         RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
2929                                         NULL, "OR: unsupported priority level");
2930                 }
2931
2932                 rc = efx_mae_match_spec_init(sa->nic,
2933                                              EFX_MAE_RULE_OUTER, ctx->priority,
2934                                              &ctx->match_spec_outer);
2935                 if (rc != 0) {
2936                         return rte_flow_error_set(error, rc,
2937                                 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
2938                                 "OR: failed to initialise the match specification");
2939                 }
2940
2941                 /*
2942                  * Outermost items comprise a match
2943                  * specification of type OUTER.
2944                  */
2945                 ctx->match_spec = ctx->match_spec_outer;
2946
2947                 /* Outermost items use "ENC" EFX MAE field IDs. */
2948                 ctx->field_ids_remap = field_ids_remap_to_encap;
2949
2950                 rc = efx_mae_outer_rule_recirc_id_set(ctx->match_spec,
2951                                                       recirc_id);
2952                 if (rc != 0) {
2953                         return rte_flow_error_set(error, rc,
2954                                         RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
2955                                         "OR: failed to initialise RECIRC_ID");
2956                 }
2957                 break;
2958         case SFC_FT_RULE_GROUP:
2959                 /* Outermost items -> "ENC" match fields in the action rule. */
2960                 ctx->field_ids_remap = field_ids_remap_to_encap;
2961                 ctx->match_spec = ctx->match_spec_action;
2962
2963                 /* No own outer rule; match on JUMP OR's RECIRC_ID is used. */
2964                 ctx->encap_type = EFX_TUNNEL_PROTOCOL_NONE;
2965                 break;
2966         default:
2967                 SFC_ASSERT(B_FALSE);
2968                 break;
2969         }
2970
2971         return 0;
2972 }
2973
2974 static void
2975 sfc_mae_rule_encap_parse_fini(struct sfc_adapter *sa,
2976                               struct sfc_mae_parse_ctx *ctx)
2977 {
2978         if (ctx->encap_type == EFX_TUNNEL_PROTOCOL_NONE)
2979                 return;
2980
2981         if (ctx->match_spec_outer != NULL)
2982                 efx_mae_match_spec_fini(sa->nic, ctx->match_spec_outer);
2983 }
2984
2985 int
2986 sfc_mae_rule_parse_pattern(struct sfc_adapter *sa,
2987                            const struct rte_flow_item pattern[],
2988                            struct sfc_flow_spec_mae *spec,
2989                            struct rte_flow_error *error)
2990 {
2991         struct sfc_mae_parse_ctx ctx_mae;
2992         unsigned int priority_shift = 0;
2993         struct sfc_flow_parse_ctx ctx;
2994         int rc;
2995
2996         memset(&ctx_mae, 0, sizeof(ctx_mae));
2997         ctx_mae.ft_rule_type = spec->ft_rule_type;
2998         ctx_mae.priority = spec->priority;
2999         ctx_mae.ft = spec->ft;
3000         ctx_mae.sa = sa;
3001
3002         switch (ctx_mae.ft_rule_type) {
3003         case SFC_FT_RULE_JUMP:
3004                 /*
3005                  * By design, this flow should be represented solely by the
3006                  * outer rule. But the HW/FW hasn't got support for setting
3007                  * Rx mark from RECIRC_ID on outer rule lookup yet. Neither
3008                  * does it support outer rule counters. As a workaround, an
3009                  * action rule of lower priority is used to do the job.
3010                  */
3011                 priority_shift = 1;
3012
3013                 /* FALLTHROUGH */
3014         case SFC_FT_RULE_GROUP:
3015                 if (ctx_mae.priority != 0) {
3016                         /*
3017                          * Because of the above workaround, deny the
3018                          * use of priorities to JUMP and GROUP rules.
3019                          */
3020                         rc = rte_flow_error_set(error, ENOTSUP,
3021                                 RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY, NULL,
3022                                 "tunnel offload: priorities are not supported");
3023                         goto fail_priority_check;
3024                 }
3025
3026                 /* FALLTHROUGH */
3027         case SFC_FT_RULE_NONE:
3028                 rc = efx_mae_match_spec_init(sa->nic, EFX_MAE_RULE_ACTION,
3029                                              spec->priority + priority_shift,
3030                                              &ctx_mae.match_spec_action);
3031                 if (rc != 0) {
3032                         rc = rte_flow_error_set(error, rc,
3033                                 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
3034                                 "AR: failed to initialise the match specification");
3035                         goto fail_init_match_spec_action;
3036                 }
3037                 break;
3038         default:
3039                 SFC_ASSERT(B_FALSE);
3040                 break;
3041         }
3042
3043         /*
3044          * As a preliminary setting, assume that there is no encapsulation
3045          * in the pattern. That is, pattern items are about to comprise a
3046          * match specification of type ACTION and use non-encap. field IDs.
3047          *
3048          * sfc_mae_rule_encap_parse_init() below may override this.
3049          */
3050         ctx_mae.encap_type = EFX_TUNNEL_PROTOCOL_NONE;
3051         ctx_mae.match_spec = ctx_mae.match_spec_action;
3052         ctx_mae.field_ids_remap = field_ids_no_remap;
3053         ctx_mae.pattern = pattern;
3054
3055         ctx.type = SFC_FLOW_PARSE_CTX_MAE;
3056         ctx.mae = &ctx_mae;
3057
3058         rc = sfc_mae_rule_encap_parse_init(sa, &ctx_mae, error);
3059         if (rc != 0)
3060                 goto fail_encap_parse_init;
3061
3062         /*
3063          * sfc_mae_rule_encap_parse_init() may have detected tunnel offload
3064          * GROUP rule. Remember its properties for later use.
3065          */
3066         spec->ft_rule_type = ctx_mae.ft_rule_type;
3067         spec->ft = ctx_mae.ft;
3068
3069         rc = sfc_flow_parse_pattern(sa, sfc_flow_items, RTE_DIM(sfc_flow_items),
3070                                     ctx_mae.pattern, &ctx, error);
3071         if (rc != 0)
3072                 goto fail_parse_pattern;
3073
3074         rc = sfc_mae_rule_process_pattern_data(&ctx_mae, error);
3075         if (rc != 0)
3076                 goto fail_process_pattern_data;
3077
3078         rc = sfc_mae_rule_process_outer(sa, &ctx_mae, &spec->outer_rule, error);
3079         if (rc != 0)
3080                 goto fail_process_outer;
3081
3082         if (ctx_mae.match_spec_action != NULL &&
3083             !efx_mae_match_spec_is_valid(sa->nic, ctx_mae.match_spec_action)) {
3084                 rc = rte_flow_error_set(error, ENOTSUP,
3085                                         RTE_FLOW_ERROR_TYPE_ITEM, NULL,
3086                                         "Inconsistent pattern");
3087                 goto fail_validate_match_spec_action;
3088         }
3089
3090         spec->match_spec = ctx_mae.match_spec_action;
3091
3092         return 0;
3093
3094 fail_validate_match_spec_action:
3095 fail_process_outer:
3096 fail_process_pattern_data:
3097 fail_parse_pattern:
3098         sfc_mae_rule_encap_parse_fini(sa, &ctx_mae);
3099
3100 fail_encap_parse_init:
3101         if (ctx_mae.match_spec_action != NULL)
3102                 efx_mae_match_spec_fini(sa->nic, ctx_mae.match_spec_action);
3103
3104 fail_init_match_spec_action:
3105 fail_priority_check:
3106         return rc;
3107 }
3108
3109 static int
3110 sfc_mae_rule_parse_action_set_mac(struct sfc_adapter *sa,
3111                                   enum sfc_mae_mac_addr_type type,
3112                                   const struct rte_flow_action_set_mac *conf,
3113                                   struct sfc_mae_aset_ctx *ctx,
3114                                   struct rte_flow_error *error)
3115 {
3116         struct sfc_mae_mac_addr **mac_addrp;
3117         int rc;
3118
3119         if (conf == NULL) {
3120                 return rte_flow_error_set(error, EINVAL,
3121                                 RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
3122                                 "the MAC address entry definition is NULL");
3123         }
3124
3125         switch (type) {
3126         case SFC_MAE_MAC_ADDR_DST:
3127                 rc = efx_mae_action_set_populate_set_dst_mac(ctx->spec);
3128                 mac_addrp = &ctx->dst_mac;
3129                 break;
3130         case SFC_MAE_MAC_ADDR_SRC:
3131                 rc = efx_mae_action_set_populate_set_src_mac(ctx->spec);
3132                 mac_addrp = &ctx->src_mac;
3133                 break;
3134         default:
3135                 rc = EINVAL;
3136                 break;
3137         }
3138
3139         if (rc != 0)
3140                 goto error;
3141
3142         *mac_addrp = sfc_mae_mac_addr_attach(sa, conf->mac_addr);
3143         if (*mac_addrp != NULL)
3144                 return 0;
3145
3146         rc = sfc_mae_mac_addr_add(sa, conf->mac_addr, mac_addrp);
3147         if (rc != 0)
3148                 goto error;
3149
3150         return 0;
3151
3152 error:
3153         return rte_flow_error_set(error, rc, RTE_FLOW_ERROR_TYPE_ACTION,
3154                                   NULL, "failed to request set MAC action");
3155 }
3156
3157 /*
3158  * An action supported by MAE may correspond to a bundle of RTE flow actions,
3159  * in example, VLAN_PUSH = OF_PUSH_VLAN + OF_VLAN_SET_VID + OF_VLAN_SET_PCP.
3160  * That is, related RTE flow actions need to be tracked as parts of a whole
3161  * so that they can be combined into a single action and submitted to MAE
3162  * representation of a given rule's action set.
3163  *
3164  * Each RTE flow action provided by an application gets classified as
3165  * one belonging to some bundle type. If an action is not supposed to
3166  * belong to any bundle, or if this action is END, it is described as
3167  * one belonging to a dummy bundle of type EMPTY.
3168  *
3169  * A currently tracked bundle will be submitted if a repeating
3170  * action or an action of different bundle type follows.
3171  */
3172
3173 enum sfc_mae_actions_bundle_type {
3174         SFC_MAE_ACTIONS_BUNDLE_EMPTY = 0,
3175         SFC_MAE_ACTIONS_BUNDLE_VLAN_PUSH,
3176 };
3177
3178 struct sfc_mae_actions_bundle {
3179         enum sfc_mae_actions_bundle_type        type;
3180
3181         /* Indicates actions already tracked by the current bundle */
3182         uint64_t                                actions_mask;
3183
3184         /* Parameters used by SFC_MAE_ACTIONS_BUNDLE_VLAN_PUSH */
3185         rte_be16_t                              vlan_push_tpid;
3186         rte_be16_t                              vlan_push_tci;
3187 };
3188
3189 /*
3190  * Combine configuration of RTE flow actions tracked by the bundle into a
3191  * single action and submit the result to MAE action set specification.
3192  * Do nothing in the case of dummy action bundle.
3193  */
3194 static int
3195 sfc_mae_actions_bundle_submit(const struct sfc_mae_actions_bundle *bundle,
3196                               efx_mae_actions_t *spec)
3197 {
3198         int rc = 0;
3199
3200         switch (bundle->type) {
3201         case SFC_MAE_ACTIONS_BUNDLE_EMPTY:
3202                 break;
3203         case SFC_MAE_ACTIONS_BUNDLE_VLAN_PUSH:
3204                 rc = efx_mae_action_set_populate_vlan_push(
3205                         spec, bundle->vlan_push_tpid, bundle->vlan_push_tci);
3206                 break;
3207         default:
3208                 SFC_ASSERT(B_FALSE);
3209                 break;
3210         }
3211
3212         return rc;
3213 }
3214
3215 /*
3216  * Given the type of the next RTE flow action in the line, decide
3217  * whether a new bundle is about to start, and, if this is the case,
3218  * submit and reset the current bundle.
3219  */
3220 static int
3221 sfc_mae_actions_bundle_sync(const struct rte_flow_action *action,
3222                             struct sfc_mae_actions_bundle *bundle,
3223                             efx_mae_actions_t *spec,
3224                             struct rte_flow_error *error)
3225 {
3226         enum sfc_mae_actions_bundle_type bundle_type_new;
3227         int rc;
3228
3229         switch (action->type) {
3230         case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN:
3231         case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID:
3232         case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP:
3233                 bundle_type_new = SFC_MAE_ACTIONS_BUNDLE_VLAN_PUSH;
3234                 break;
3235         default:
3236                 /*
3237                  * Self-sufficient actions, including END, are handled in this
3238                  * case. No checks for unsupported actions are needed here
3239                  * because parsing doesn't occur at this point.
3240                  */
3241                 bundle_type_new = SFC_MAE_ACTIONS_BUNDLE_EMPTY;
3242                 break;
3243         }
3244
3245         if (bundle_type_new != bundle->type ||
3246             (bundle->actions_mask & (1ULL << action->type)) != 0) {
3247                 rc = sfc_mae_actions_bundle_submit(bundle, spec);
3248                 if (rc != 0)
3249                         goto fail_submit;
3250
3251                 memset(bundle, 0, sizeof(*bundle));
3252         }
3253
3254         bundle->type = bundle_type_new;
3255
3256         return 0;
3257
3258 fail_submit:
3259         return rte_flow_error_set(error, rc,
3260                         RTE_FLOW_ERROR_TYPE_ACTION, NULL,
3261                         "Failed to request the (group of) action(s)");
3262 }
3263
3264 static void
3265 sfc_mae_rule_parse_action_of_push_vlan(
3266                             const struct rte_flow_action_of_push_vlan *conf,
3267                             struct sfc_mae_actions_bundle *bundle)
3268 {
3269         bundle->vlan_push_tpid = conf->ethertype;
3270 }
3271
3272 static void
3273 sfc_mae_rule_parse_action_of_set_vlan_vid(
3274                             const struct rte_flow_action_of_set_vlan_vid *conf,
3275                             struct sfc_mae_actions_bundle *bundle)
3276 {
3277         bundle->vlan_push_tci |= (conf->vlan_vid &
3278                                   rte_cpu_to_be_16(RTE_LEN2MASK(12, uint16_t)));
3279 }
3280
3281 static void
3282 sfc_mae_rule_parse_action_of_set_vlan_pcp(
3283                             const struct rte_flow_action_of_set_vlan_pcp *conf,
3284                             struct sfc_mae_actions_bundle *bundle)
3285 {
3286         uint16_t vlan_tci_pcp = (uint16_t)(conf->vlan_pcp &
3287                                            RTE_LEN2MASK(3, uint8_t)) << 13;
3288
3289         bundle->vlan_push_tci |= rte_cpu_to_be_16(vlan_tci_pcp);
3290 }
3291
3292 struct sfc_mae_parsed_item {
3293         const struct rte_flow_item      *item;
3294         size_t                          proto_header_ofst;
3295         size_t                          proto_header_size;
3296 };
3297
3298 /*
3299  * For each 16-bit word of the given header, override
3300  * bits enforced by the corresponding 16-bit mask.
3301  */
3302 static void
3303 sfc_mae_header_force_item_masks(uint8_t *header_buf,
3304                                 const struct sfc_mae_parsed_item *parsed_items,
3305                                 unsigned int nb_parsed_items)
3306 {
3307         unsigned int item_idx;
3308
3309         for (item_idx = 0; item_idx < nb_parsed_items; ++item_idx) {
3310                 const struct sfc_mae_parsed_item *parsed_item;
3311                 const struct rte_flow_item *item;
3312                 size_t proto_header_size;
3313                 size_t ofst;
3314
3315                 parsed_item = &parsed_items[item_idx];
3316                 proto_header_size = parsed_item->proto_header_size;
3317                 item = parsed_item->item;
3318
3319                 for (ofst = 0; ofst < proto_header_size;
3320                      ofst += sizeof(rte_be16_t)) {
3321                         rte_be16_t *wp = RTE_PTR_ADD(header_buf, ofst);
3322                         const rte_be16_t *w_maskp;
3323                         const rte_be16_t *w_specp;
3324
3325                         w_maskp = RTE_PTR_ADD(item->mask, ofst);
3326                         w_specp = RTE_PTR_ADD(item->spec, ofst);
3327
3328                         *wp &= ~(*w_maskp);
3329                         *wp |= (*w_specp & *w_maskp);
3330                 }
3331
3332                 header_buf += proto_header_size;
3333         }
3334 }
3335
3336 #define SFC_IPV4_TTL_DEF        0x40
3337 #define SFC_IPV6_VTC_FLOW_DEF   0x60000000
3338 #define SFC_IPV6_HOP_LIMITS_DEF 0xff
3339 #define SFC_VXLAN_FLAGS_DEF     0x08000000
3340
3341 static int
3342 sfc_mae_rule_parse_action_vxlan_encap(
3343                             struct sfc_mae *mae,
3344                             const struct rte_flow_action_vxlan_encap *conf,
3345                             efx_mae_actions_t *spec,
3346                             struct rte_flow_error *error)
3347 {
3348         struct sfc_mae_bounce_eh *bounce_eh = &mae->bounce_eh;
3349         struct rte_flow_item *pattern = conf->definition;
3350         uint8_t *buf = bounce_eh->buf;
3351
3352         /* This array will keep track of non-VOID pattern items. */
3353         struct sfc_mae_parsed_item parsed_items[1 /* Ethernet */ +
3354                                                 2 /* VLAN tags */ +
3355                                                 1 /* IPv4 or IPv6 */ +
3356                                                 1 /* UDP */ +
3357                                                 1 /* VXLAN */];
3358         unsigned int nb_parsed_items = 0;
3359
3360         size_t eth_ethertype_ofst = offsetof(struct rte_ether_hdr, ether_type);
3361         uint8_t dummy_buf[RTE_MAX(sizeof(struct rte_ipv4_hdr),
3362                                   sizeof(struct rte_ipv6_hdr))];
3363         struct rte_ipv4_hdr *ipv4 = (void *)dummy_buf;
3364         struct rte_ipv6_hdr *ipv6 = (void *)dummy_buf;
3365         struct rte_vxlan_hdr *vxlan = NULL;
3366         struct rte_udp_hdr *udp = NULL;
3367         unsigned int nb_vlan_tags = 0;
3368         size_t next_proto_ofst = 0;
3369         size_t ethertype_ofst = 0;
3370         uint64_t exp_items;
3371         int rc;
3372
3373         if (pattern == NULL) {
3374                 return rte_flow_error_set(error, EINVAL,
3375                                 RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
3376                                 "The encap. header definition is NULL");
3377         }
3378
3379         bounce_eh->type = EFX_TUNNEL_PROTOCOL_VXLAN;
3380         bounce_eh->size = 0;
3381
3382         /*
3383          * Process pattern items and remember non-VOID ones.
3384          * Defer applying masks until after the complete header
3385          * has been built from the pattern items.
3386          */
3387         exp_items = RTE_BIT64(RTE_FLOW_ITEM_TYPE_ETH);
3388
3389         for (; pattern->type != RTE_FLOW_ITEM_TYPE_END; ++pattern) {
3390                 struct sfc_mae_parsed_item *parsed_item;
3391                 const uint64_t exp_items_extra_vlan[] = {
3392                         RTE_BIT64(RTE_FLOW_ITEM_TYPE_VLAN), 0
3393                 };
3394                 size_t proto_header_size;
3395                 rte_be16_t *ethertypep;
3396                 uint8_t *next_protop;
3397                 uint8_t *buf_cur;
3398
3399                 if (pattern->spec == NULL) {
3400                         return rte_flow_error_set(error, EINVAL,
3401                                         RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
3402                                         "NULL item spec in the encap. header");
3403                 }
3404
3405                 if (pattern->mask == NULL) {
3406                         return rte_flow_error_set(error, EINVAL,
3407                                         RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
3408                                         "NULL item mask in the encap. header");
3409                 }
3410
3411                 if (pattern->last != NULL) {
3412                         /* This is not a match pattern, so disallow range. */
3413                         return rte_flow_error_set(error, EINVAL,
3414                                         RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
3415                                         "Range item in the encap. header");
3416                 }
3417
3418                 if (pattern->type == RTE_FLOW_ITEM_TYPE_VOID) {
3419                         /* Handle VOID separately, for clarity. */
3420                         continue;
3421                 }
3422
3423                 if ((exp_items & RTE_BIT64(pattern->type)) == 0) {
3424                         return rte_flow_error_set(error, ENOTSUP,
3425                                         RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
3426                                         "Unexpected item in the encap. header");
3427                 }
3428
3429                 parsed_item = &parsed_items[nb_parsed_items];
3430                 buf_cur = buf + bounce_eh->size;
3431
3432                 switch (pattern->type) {
3433                 case RTE_FLOW_ITEM_TYPE_ETH:
3434                         SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ITEM_TYPE_ETH,
3435                                                exp_items);
3436                         RTE_BUILD_BUG_ON(offsetof(struct rte_flow_item_eth,
3437                                                   hdr) != 0);
3438
3439                         proto_header_size = sizeof(struct rte_ether_hdr);
3440
3441                         ethertype_ofst = eth_ethertype_ofst;
3442
3443                         exp_items = RTE_BIT64(RTE_FLOW_ITEM_TYPE_VLAN) |
3444                                     RTE_BIT64(RTE_FLOW_ITEM_TYPE_IPV4) |
3445                                     RTE_BIT64(RTE_FLOW_ITEM_TYPE_IPV6);
3446                         break;
3447                 case RTE_FLOW_ITEM_TYPE_VLAN:
3448                         SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ITEM_TYPE_VLAN,
3449                                                exp_items);
3450                         RTE_BUILD_BUG_ON(offsetof(struct rte_flow_item_vlan,
3451                                                   hdr) != 0);
3452
3453                         proto_header_size = sizeof(struct rte_vlan_hdr);
3454
3455                         ethertypep = RTE_PTR_ADD(buf, eth_ethertype_ofst);
3456                         *ethertypep = RTE_BE16(RTE_ETHER_TYPE_QINQ);
3457
3458                         ethertypep = RTE_PTR_ADD(buf, ethertype_ofst);
3459                         *ethertypep = RTE_BE16(RTE_ETHER_TYPE_VLAN);
3460
3461                         ethertype_ofst =
3462                             bounce_eh->size +
3463                             offsetof(struct rte_vlan_hdr, eth_proto);
3464
3465                         exp_items = RTE_BIT64(RTE_FLOW_ITEM_TYPE_IPV4) |
3466                                     RTE_BIT64(RTE_FLOW_ITEM_TYPE_IPV6);
3467                         exp_items |= exp_items_extra_vlan[nb_vlan_tags];
3468
3469                         ++nb_vlan_tags;
3470                         break;
3471                 case RTE_FLOW_ITEM_TYPE_IPV4:
3472                         SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ITEM_TYPE_IPV4,
3473                                                exp_items);
3474                         RTE_BUILD_BUG_ON(offsetof(struct rte_flow_item_ipv4,
3475                                                   hdr) != 0);
3476
3477                         proto_header_size = sizeof(struct rte_ipv4_hdr);
3478
3479                         ethertypep = RTE_PTR_ADD(buf, ethertype_ofst);
3480                         *ethertypep = RTE_BE16(RTE_ETHER_TYPE_IPV4);
3481
3482                         next_proto_ofst =
3483                             bounce_eh->size +
3484                             offsetof(struct rte_ipv4_hdr, next_proto_id);
3485
3486                         ipv4 = (struct rte_ipv4_hdr *)buf_cur;
3487
3488                         exp_items = RTE_BIT64(RTE_FLOW_ITEM_TYPE_UDP);
3489                         break;
3490                 case RTE_FLOW_ITEM_TYPE_IPV6:
3491                         SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ITEM_TYPE_IPV6,
3492                                                exp_items);
3493                         RTE_BUILD_BUG_ON(offsetof(struct rte_flow_item_ipv6,
3494                                                   hdr) != 0);
3495
3496                         proto_header_size = sizeof(struct rte_ipv6_hdr);
3497
3498                         ethertypep = RTE_PTR_ADD(buf, ethertype_ofst);
3499                         *ethertypep = RTE_BE16(RTE_ETHER_TYPE_IPV6);
3500
3501                         next_proto_ofst = bounce_eh->size +
3502                                           offsetof(struct rte_ipv6_hdr, proto);
3503
3504                         ipv6 = (struct rte_ipv6_hdr *)buf_cur;
3505
3506                         exp_items = RTE_BIT64(RTE_FLOW_ITEM_TYPE_UDP);
3507                         break;
3508                 case RTE_FLOW_ITEM_TYPE_UDP:
3509                         SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ITEM_TYPE_UDP,
3510                                                exp_items);
3511                         RTE_BUILD_BUG_ON(offsetof(struct rte_flow_item_udp,
3512                                                   hdr) != 0);
3513
3514                         proto_header_size = sizeof(struct rte_udp_hdr);
3515
3516                         next_protop = RTE_PTR_ADD(buf, next_proto_ofst);
3517                         *next_protop = IPPROTO_UDP;
3518
3519                         udp = (struct rte_udp_hdr *)buf_cur;
3520
3521                         exp_items = RTE_BIT64(RTE_FLOW_ITEM_TYPE_VXLAN);
3522                         break;
3523                 case RTE_FLOW_ITEM_TYPE_VXLAN:
3524                         SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ITEM_TYPE_VXLAN,
3525                                                exp_items);
3526                         RTE_BUILD_BUG_ON(offsetof(struct rte_flow_item_vxlan,
3527                                                   hdr) != 0);
3528
3529                         proto_header_size = sizeof(struct rte_vxlan_hdr);
3530
3531                         vxlan = (struct rte_vxlan_hdr *)buf_cur;
3532
3533                         udp->dst_port = RTE_BE16(RTE_VXLAN_DEFAULT_PORT);
3534                         udp->dgram_len = RTE_BE16(sizeof(*udp) +
3535                                                   sizeof(*vxlan));
3536                         udp->dgram_cksum = 0;
3537
3538                         exp_items = 0;
3539                         break;
3540                 default:
3541                         return rte_flow_error_set(error, ENOTSUP,
3542                                         RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
3543                                         "Unknown item in the encap. header");
3544                 }
3545
3546                 if (bounce_eh->size + proto_header_size > bounce_eh->buf_size) {
3547                         return rte_flow_error_set(error, E2BIG,
3548                                         RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
3549                                         "The encap. header is too big");
3550                 }
3551
3552                 if ((proto_header_size & 1) != 0) {
3553                         return rte_flow_error_set(error, EINVAL,
3554                                         RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
3555                                         "Odd layer size in the encap. header");
3556                 }
3557
3558                 rte_memcpy(buf_cur, pattern->spec, proto_header_size);
3559                 bounce_eh->size += proto_header_size;
3560
3561                 parsed_item->item = pattern;
3562                 parsed_item->proto_header_size = proto_header_size;
3563                 ++nb_parsed_items;
3564         }
3565
3566         if (exp_items != 0) {
3567                 /* Parsing item VXLAN would have reset exp_items to 0. */
3568                 return rte_flow_error_set(error, ENOTSUP,
3569                                         RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
3570                                         "No item VXLAN in the encap. header");
3571         }
3572
3573         /* One of the pointers (ipv4, ipv6) refers to a dummy area. */
3574         ipv4->version_ihl = RTE_IPV4_VHL_DEF;
3575         ipv4->time_to_live = SFC_IPV4_TTL_DEF;
3576         ipv4->total_length = RTE_BE16(sizeof(*ipv4) + sizeof(*udp) +
3577                                       sizeof(*vxlan));
3578         /* The HW cannot compute this checksum. */
3579         ipv4->hdr_checksum = 0;
3580         ipv4->hdr_checksum = rte_ipv4_cksum(ipv4);
3581
3582         ipv6->vtc_flow = RTE_BE32(SFC_IPV6_VTC_FLOW_DEF);
3583         ipv6->hop_limits = SFC_IPV6_HOP_LIMITS_DEF;
3584         ipv6->payload_len = udp->dgram_len;
3585
3586         vxlan->vx_flags = RTE_BE32(SFC_VXLAN_FLAGS_DEF);
3587
3588         /* Take care of the masks. */
3589         sfc_mae_header_force_item_masks(buf, parsed_items, nb_parsed_items);
3590
3591         rc = efx_mae_action_set_populate_encap(spec);
3592         if (rc != 0) {
3593                 rc = rte_flow_error_set(error, rc, RTE_FLOW_ERROR_TYPE_ACTION,
3594                                 NULL, "failed to request action ENCAP");
3595         }
3596
3597         return rc;
3598 }
3599
3600 static int
3601 sfc_mae_rule_parse_action_mark(struct sfc_adapter *sa,
3602                                const struct rte_flow_action_mark *conf,
3603                                const struct sfc_flow_spec_mae *spec_mae,
3604                                efx_mae_actions_t *spec)
3605 {
3606         int rc;
3607
3608         if (spec_mae->ft_rule_type == SFC_FT_RULE_JUMP) {
3609                 /* Workaround. See sfc_flow_parse_rte_to_mae() */
3610         } else if (conf->id > SFC_FT_USER_MARK_MASK) {
3611                 sfc_err(sa, "the mark value is too large");
3612                 return EINVAL;
3613         }
3614
3615         rc = efx_mae_action_set_populate_mark(spec, conf->id);
3616         if (rc != 0)
3617                 sfc_err(sa, "failed to request action MARK: %s", strerror(rc));
3618
3619         return rc;
3620 }
3621
3622 static int
3623 sfc_mae_rule_parse_action_count(struct sfc_adapter *sa,
3624                                 const struct rte_flow_action_count *conf
3625                                         __rte_unused,
3626                                 efx_mae_actions_t *spec)
3627 {
3628         int rc;
3629
3630         if ((sa->counter_rxq.state & SFC_COUNTER_RXQ_INITIALIZED) == 0) {
3631                 sfc_err(sa,
3632                         "counter queue is not configured for COUNT action");
3633                 rc = EINVAL;
3634                 goto fail_counter_queue_uninit;
3635         }
3636
3637         if (sfc_get_service_lcore(SOCKET_ID_ANY) == RTE_MAX_LCORE) {
3638                 rc = EINVAL;
3639                 goto fail_no_service_core;
3640         }
3641
3642         rc = efx_mae_action_set_populate_count(spec);
3643         if (rc != 0) {
3644                 sfc_err(sa,
3645                         "failed to populate counters in MAE action set: %s",
3646                         rte_strerror(rc));
3647                 goto fail_populate_count;
3648         }
3649
3650         return 0;
3651
3652 fail_populate_count:
3653 fail_no_service_core:
3654 fail_counter_queue_uninit:
3655
3656         return rc;
3657 }
3658
3659 static int
3660 sfc_mae_rule_parse_action_phy_port(struct sfc_adapter *sa,
3661                                    const struct rte_flow_action_phy_port *conf,
3662                                    efx_mae_actions_t *spec)
3663 {
3664         efx_mport_sel_t mport;
3665         uint32_t phy_port;
3666         int rc;
3667
3668         if (conf->original != 0)
3669                 phy_port = efx_nic_cfg_get(sa->nic)->enc_assigned_port;
3670         else
3671                 phy_port = conf->index;
3672
3673         rc = efx_mae_mport_by_phy_port(phy_port, &mport);
3674         if (rc != 0) {
3675                 sfc_err(sa, "failed to convert phys. port ID %u to m-port selector: %s",
3676                         phy_port, strerror(rc));
3677                 return rc;
3678         }
3679
3680         rc = efx_mae_action_set_populate_deliver(spec, &mport);
3681         if (rc != 0) {
3682                 sfc_err(sa, "failed to request action DELIVER with m-port selector 0x%08x: %s",
3683                         mport.sel, strerror(rc));
3684         }
3685
3686         return rc;
3687 }
3688
3689 static int
3690 sfc_mae_rule_parse_action_pf_vf(struct sfc_adapter *sa,
3691                                 const struct rte_flow_action_vf *vf_conf,
3692                                 efx_mae_actions_t *spec)
3693 {
3694         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
3695         efx_mport_sel_t mport;
3696         uint32_t vf;
3697         int rc;
3698
3699         if (vf_conf == NULL)
3700                 vf = EFX_PCI_VF_INVALID;
3701         else if (vf_conf->original != 0)
3702                 vf = encp->enc_vf;
3703         else
3704                 vf = vf_conf->id;
3705
3706         rc = efx_mae_mport_by_pcie_function(encp->enc_pf, vf, &mport);
3707         if (rc != 0) {
3708                 sfc_err(sa, "failed to convert PF %u VF %d to m-port: %s",
3709                         encp->enc_pf, (vf != EFX_PCI_VF_INVALID) ? (int)vf : -1,
3710                         strerror(rc));
3711                 return rc;
3712         }
3713
3714         rc = efx_mae_action_set_populate_deliver(spec, &mport);
3715         if (rc != 0) {
3716                 sfc_err(sa, "failed to request action DELIVER with m-port selector 0x%08x: %s",
3717                         mport.sel, strerror(rc));
3718         }
3719
3720         return rc;
3721 }
3722
3723 static int
3724 sfc_mae_rule_parse_action_port_id(struct sfc_adapter *sa,
3725                                   const struct rte_flow_action_port_id *conf,
3726                                   efx_mae_actions_t *spec)
3727 {
3728         struct sfc_adapter_shared * const sas = sfc_sa2shared(sa);
3729         struct sfc_mae *mae = &sa->mae;
3730         efx_mport_sel_t mport;
3731         uint16_t port_id;
3732         int rc;
3733
3734         if (conf->id > UINT16_MAX)
3735                 return EOVERFLOW;
3736
3737         port_id = (conf->original != 0) ? sas->port_id : conf->id;
3738
3739         rc = sfc_mae_switch_get_ethdev_mport(mae->switch_domain_id,
3740                                              port_id, &mport);
3741         if (rc != 0) {
3742                 sfc_err(sa, "failed to get m-port for the given ethdev (port_id=%u): %s",
3743                         port_id, strerror(rc));
3744                 return rc;
3745         }
3746
3747         rc = efx_mae_action_set_populate_deliver(spec, &mport);
3748         if (rc != 0) {
3749                 sfc_err(sa, "failed to request action DELIVER with m-port selector 0x%08x: %s",
3750                         mport.sel, strerror(rc));
3751         }
3752
3753         return rc;
3754 }
3755
3756 static int
3757 sfc_mae_rule_parse_action_port_representor(struct sfc_adapter *sa,
3758                 const struct rte_flow_action_ethdev *conf,
3759                 efx_mae_actions_t *spec)
3760 {
3761         struct sfc_mae *mae = &sa->mae;
3762         efx_mport_sel_t mport;
3763         int rc;
3764
3765         rc = sfc_mae_switch_get_ethdev_mport(mae->switch_domain_id,
3766                                              conf->port_id, &mport);
3767         if (rc != 0) {
3768                 sfc_err(sa, "failed to get m-port for the given ethdev (port_id=%u): %s",
3769                         conf->port_id, strerror(rc));
3770                 return rc;
3771         }
3772
3773         rc = efx_mae_action_set_populate_deliver(spec, &mport);
3774         if (rc != 0) {
3775                 sfc_err(sa, "failed to request action DELIVER with m-port selector 0x%08x: %s",
3776                         mport.sel, strerror(rc));
3777         }
3778
3779         return rc;
3780 }
3781
3782 static int
3783 sfc_mae_rule_parse_action_represented_port(struct sfc_adapter *sa,
3784                 const struct rte_flow_action_ethdev *conf,
3785                 efx_mae_actions_t *spec)
3786 {
3787         struct sfc_mae *mae = &sa->mae;
3788         efx_mport_sel_t mport;
3789         int rc;
3790
3791         rc = sfc_mae_switch_get_entity_mport(mae->switch_domain_id,
3792                                              conf->port_id, &mport);
3793         if (rc != 0) {
3794                 sfc_err(sa, "failed to get m-port for the given ethdev (port_id=%u): %s",
3795                         conf->port_id, strerror(rc));
3796                 return rc;
3797         }
3798
3799         rc = efx_mae_action_set_populate_deliver(spec, &mport);
3800         if (rc != 0) {
3801                 sfc_err(sa, "failed to request action DELIVER with m-port selector 0x%08x: %s",
3802                         mport.sel, strerror(rc));
3803         }
3804
3805         return rc;
3806 }
3807
3808 static const char * const action_names[] = {
3809         [RTE_FLOW_ACTION_TYPE_VXLAN_DECAP] = "VXLAN_DECAP",
3810         [RTE_FLOW_ACTION_TYPE_OF_POP_VLAN] = "OF_POP_VLAN",
3811         [RTE_FLOW_ACTION_TYPE_SET_MAC_DST] = "SET_MAC_DST",
3812         [RTE_FLOW_ACTION_TYPE_SET_MAC_SRC] = "SET_MAC_SRC",
3813         [RTE_FLOW_ACTION_TYPE_OF_DEC_NW_TTL] = "OF_DEC_NW_TTL",
3814         [RTE_FLOW_ACTION_TYPE_DEC_TTL] = "DEC_TTL",
3815         [RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN] = "OF_PUSH_VLAN",
3816         [RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID] = "OF_SET_VLAN_VID",
3817         [RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP] = "OF_SET_VLAN_PCP",
3818         [RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP] = "VXLAN_ENCAP",
3819         [RTE_FLOW_ACTION_TYPE_COUNT] = "COUNT",
3820         [RTE_FLOW_ACTION_TYPE_FLAG] = "FLAG",
3821         [RTE_FLOW_ACTION_TYPE_MARK] = "MARK",
3822         [RTE_FLOW_ACTION_TYPE_PHY_PORT] = "PHY_PORT",
3823         [RTE_FLOW_ACTION_TYPE_PF] = "PF",
3824         [RTE_FLOW_ACTION_TYPE_VF] = "VF",
3825         [RTE_FLOW_ACTION_TYPE_PORT_ID] = "PORT_ID",
3826         [RTE_FLOW_ACTION_TYPE_PORT_REPRESENTOR] = "PORT_REPRESENTOR",
3827         [RTE_FLOW_ACTION_TYPE_REPRESENTED_PORT] = "REPRESENTED_PORT",
3828         [RTE_FLOW_ACTION_TYPE_DROP] = "DROP",
3829         [RTE_FLOW_ACTION_TYPE_JUMP] = "JUMP",
3830 };
3831
3832 static int
3833 sfc_mae_rule_parse_action(struct sfc_adapter *sa,
3834                           const struct rte_flow_action *action,
3835                           const struct sfc_flow_spec_mae *spec_mae,
3836                           struct sfc_mae_actions_bundle *bundle,
3837                           struct sfc_mae_aset_ctx *ctx,
3838                           struct rte_flow_error *error)
3839 {
3840         const struct sfc_mae_outer_rule *outer_rule = spec_mae->outer_rule;
3841         const uint64_t rx_metadata = sa->negotiated_rx_metadata;
3842         efx_mae_actions_t *spec = ctx->spec;
3843         bool custom_error = B_FALSE;
3844         int rc = 0;
3845
3846         switch (action->type) {
3847         case RTE_FLOW_ACTION_TYPE_VXLAN_DECAP:
3848                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_VXLAN_DECAP,
3849                                        bundle->actions_mask);
3850                 if (outer_rule == NULL ||
3851                     outer_rule->encap_type != EFX_TUNNEL_PROTOCOL_VXLAN)
3852                         rc = EINVAL;
3853                 else
3854                         rc = efx_mae_action_set_populate_decap(spec);
3855                 break;
3856         case RTE_FLOW_ACTION_TYPE_OF_POP_VLAN:
3857                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_OF_POP_VLAN,
3858                                        bundle->actions_mask);
3859                 rc = efx_mae_action_set_populate_vlan_pop(spec);
3860                 break;
3861         case RTE_FLOW_ACTION_TYPE_SET_MAC_DST:
3862                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_SET_MAC_DST,
3863                                        bundle->actions_mask);
3864                 rc = sfc_mae_rule_parse_action_set_mac(sa, SFC_MAE_MAC_ADDR_DST,
3865                                                        action->conf, ctx,
3866                                                        error);
3867                 custom_error = B_TRUE;
3868                 break;
3869         case RTE_FLOW_ACTION_TYPE_SET_MAC_SRC:
3870                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_SET_MAC_SRC,
3871                                        bundle->actions_mask);
3872                 rc = sfc_mae_rule_parse_action_set_mac(sa, SFC_MAE_MAC_ADDR_SRC,
3873                                                        action->conf, ctx,
3874                                                        error);
3875                 custom_error = B_TRUE;
3876                 break;
3877         case RTE_FLOW_ACTION_TYPE_OF_DEC_NW_TTL:
3878         case RTE_FLOW_ACTION_TYPE_DEC_TTL:
3879                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_OF_DEC_NW_TTL,
3880                                        bundle->actions_mask);
3881                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_DEC_TTL,
3882                                        bundle->actions_mask);
3883                 rc = efx_mae_action_set_populate_decr_ip_ttl(spec);
3884                 break;
3885         case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN:
3886                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN,
3887                                        bundle->actions_mask);
3888                 sfc_mae_rule_parse_action_of_push_vlan(action->conf, bundle);
3889                 break;
3890         case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID:
3891                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID,
3892                                        bundle->actions_mask);
3893                 sfc_mae_rule_parse_action_of_set_vlan_vid(action->conf, bundle);
3894                 break;
3895         case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP:
3896                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP,
3897                                        bundle->actions_mask);
3898                 sfc_mae_rule_parse_action_of_set_vlan_pcp(action->conf, bundle);
3899                 break;
3900         case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
3901                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP,
3902                                        bundle->actions_mask);
3903                 rc = sfc_mae_rule_parse_action_vxlan_encap(&sa->mae,
3904                                                            action->conf,
3905                                                            spec, error);
3906                 custom_error = B_TRUE;
3907                 break;
3908         case RTE_FLOW_ACTION_TYPE_COUNT:
3909                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_COUNT,
3910                                        bundle->actions_mask);
3911                 rc = sfc_mae_rule_parse_action_count(sa, action->conf, spec);
3912                 break;
3913         case RTE_FLOW_ACTION_TYPE_FLAG:
3914                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_FLAG,
3915                                        bundle->actions_mask);
3916                 if ((rx_metadata & RTE_ETH_RX_METADATA_USER_FLAG) != 0) {
3917                         rc = efx_mae_action_set_populate_flag(spec);
3918                 } else {
3919                         rc = rte_flow_error_set(error, ENOTSUP,
3920                                                 RTE_FLOW_ERROR_TYPE_ACTION,
3921                                                 action,
3922                                                 "flag delivery has not been negotiated");
3923                         custom_error = B_TRUE;
3924                 }
3925                 break;
3926         case RTE_FLOW_ACTION_TYPE_MARK:
3927                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_MARK,
3928                                        bundle->actions_mask);
3929                 if ((rx_metadata & RTE_ETH_RX_METADATA_USER_MARK) != 0 ||
3930                     spec_mae->ft_rule_type == SFC_FT_RULE_JUMP) {
3931                         rc = sfc_mae_rule_parse_action_mark(sa, action->conf,
3932                                                             spec_mae, spec);
3933                 } else {
3934                         rc = rte_flow_error_set(error, ENOTSUP,
3935                                                 RTE_FLOW_ERROR_TYPE_ACTION,
3936                                                 action,
3937                                                 "mark delivery has not been negotiated");
3938                         custom_error = B_TRUE;
3939                 }
3940                 break;
3941         case RTE_FLOW_ACTION_TYPE_PHY_PORT:
3942                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_PHY_PORT,
3943                                        bundle->actions_mask);
3944                 rc = sfc_mae_rule_parse_action_phy_port(sa, action->conf, spec);
3945                 break;
3946         case RTE_FLOW_ACTION_TYPE_PF:
3947                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_PF,
3948                                        bundle->actions_mask);
3949                 rc = sfc_mae_rule_parse_action_pf_vf(sa, NULL, spec);
3950                 break;
3951         case RTE_FLOW_ACTION_TYPE_VF:
3952                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_VF,
3953                                        bundle->actions_mask);
3954                 rc = sfc_mae_rule_parse_action_pf_vf(sa, action->conf, spec);
3955                 break;
3956         case RTE_FLOW_ACTION_TYPE_PORT_ID:
3957                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_PORT_ID,
3958                                        bundle->actions_mask);
3959                 rc = sfc_mae_rule_parse_action_port_id(sa, action->conf, spec);
3960                 break;
3961         case RTE_FLOW_ACTION_TYPE_PORT_REPRESENTOR:
3962                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_PORT_REPRESENTOR,
3963                                        bundle->actions_mask);
3964                 rc = sfc_mae_rule_parse_action_port_representor(sa,
3965                                 action->conf, spec);
3966                 break;
3967         case RTE_FLOW_ACTION_TYPE_REPRESENTED_PORT:
3968                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_REPRESENTED_PORT,
3969                                        bundle->actions_mask);
3970                 rc = sfc_mae_rule_parse_action_represented_port(sa,
3971                                 action->conf, spec);
3972                 break;
3973         case RTE_FLOW_ACTION_TYPE_DROP:
3974                 SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_DROP,
3975                                        bundle->actions_mask);
3976                 rc = efx_mae_action_set_populate_drop(spec);
3977                 break;
3978         case RTE_FLOW_ACTION_TYPE_JUMP:
3979                 if (spec_mae->ft_rule_type == SFC_FT_RULE_JUMP) {
3980                         /* Workaround. See sfc_flow_parse_rte_to_mae() */
3981                         break;
3982                 }
3983                 /* FALLTHROUGH */
3984         default:
3985                 return rte_flow_error_set(error, ENOTSUP,
3986                                 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
3987                                 "Unsupported action");
3988         }
3989
3990         if (rc == 0) {
3991                 bundle->actions_mask |= (1ULL << action->type);
3992         } else if (!custom_error) {
3993                 if (action->type < RTE_DIM(action_names)) {
3994                         const char *action_name = action_names[action->type];
3995
3996                         if (action_name != NULL) {
3997                                 sfc_err(sa, "action %s was rejected: %s",
3998                                         action_name, strerror(rc));
3999                         }
4000                 }
4001                 rc = rte_flow_error_set(error, rc, RTE_FLOW_ERROR_TYPE_ACTION,
4002                                 NULL, "Failed to request the action");
4003         }
4004
4005         return rc;
4006 }
4007
4008 static void
4009 sfc_mae_bounce_eh_invalidate(struct sfc_mae_bounce_eh *bounce_eh)
4010 {
4011         bounce_eh->type = EFX_TUNNEL_PROTOCOL_NONE;
4012 }
4013
4014 static int
4015 sfc_mae_process_encap_header(struct sfc_adapter *sa,
4016                              const struct sfc_mae_bounce_eh *bounce_eh,
4017                              struct sfc_mae_encap_header **encap_headerp)
4018 {
4019         if (bounce_eh->type == EFX_TUNNEL_PROTOCOL_NONE) {
4020                 encap_headerp = NULL;
4021                 return 0;
4022         }
4023
4024         *encap_headerp = sfc_mae_encap_header_attach(sa, bounce_eh);
4025         if (*encap_headerp != NULL)
4026                 return 0;
4027
4028         return sfc_mae_encap_header_add(sa, bounce_eh, encap_headerp);
4029 }
4030
4031 int
4032 sfc_mae_rule_parse_actions(struct sfc_adapter *sa,
4033                            const struct rte_flow_action actions[],
4034                            struct sfc_flow_spec_mae *spec_mae,
4035                            struct rte_flow_error *error)
4036 {
4037         struct sfc_mae_actions_bundle bundle = {0};
4038         const struct rte_flow_action *action;
4039         struct sfc_mae_aset_ctx ctx = {0};
4040         struct sfc_mae *mae = &sa->mae;
4041         int rc;
4042
4043         rte_errno = 0;
4044
4045         if (actions == NULL) {
4046                 return rte_flow_error_set(error, EINVAL,
4047                                 RTE_FLOW_ERROR_TYPE_ACTION_NUM, NULL,
4048                                 "NULL actions");
4049         }
4050
4051         rc = efx_mae_action_set_spec_init(sa->nic, &ctx.spec);
4052         if (rc != 0)
4053                 goto fail_action_set_spec_init;
4054
4055         for (action = actions;
4056              action->type != RTE_FLOW_ACTION_TYPE_END; ++action) {
4057                 if (action->type == RTE_FLOW_ACTION_TYPE_COUNT)
4058                         ++(ctx.n_counters);
4059         }
4060
4061         if (spec_mae->ft_rule_type == SFC_FT_RULE_GROUP) {
4062                 /* JUMP rules don't decapsulate packets. GROUP rules do. */
4063                 rc = efx_mae_action_set_populate_decap(ctx.spec);
4064                 if (rc != 0)
4065                         goto fail_enforce_ft_decap;
4066
4067                 if (ctx.n_counters == 0 &&
4068                     sfc_mae_counter_stream_enabled(sa)) {
4069                         /*
4070                          * The user opted not to use action COUNT in this rule,
4071                          * but the counter should be enabled implicitly because
4072                          * packets hitting this rule contribute to the tunnel's
4073                          * total number of hits. See sfc_mae_counter_get().
4074                          */
4075                         rc = efx_mae_action_set_populate_count(ctx.spec);
4076                         if (rc != 0)
4077                                 goto fail_enforce_ft_count;
4078
4079                         ctx.n_counters = 1;
4080                 }
4081         }
4082
4083         /* Cleanup after previous encap. header bounce buffer usage. */
4084         sfc_mae_bounce_eh_invalidate(&mae->bounce_eh);
4085
4086         for (action = actions;
4087              action->type != RTE_FLOW_ACTION_TYPE_END; ++action) {
4088                 rc = sfc_mae_actions_bundle_sync(action, &bundle,
4089                                                  ctx.spec, error);
4090                 if (rc != 0)
4091                         goto fail_rule_parse_action;
4092
4093                 rc = sfc_mae_rule_parse_action(sa, action, spec_mae,
4094                                                &bundle, &ctx, error);
4095                 if (rc != 0)
4096                         goto fail_rule_parse_action;
4097         }
4098
4099         rc = sfc_mae_actions_bundle_sync(action, &bundle, ctx.spec, error);
4100         if (rc != 0)
4101                 goto fail_rule_parse_action;
4102
4103         rc = sfc_mae_process_encap_header(sa, &mae->bounce_eh,
4104                                           &ctx.encap_header);
4105         if (rc != 0)
4106                 goto fail_process_encap_header;
4107
4108         if (ctx.n_counters > 1) {
4109                 rc = ENOTSUP;
4110                 sfc_err(sa, "too many count actions requested: %u",
4111                         ctx.n_counters);
4112                 goto fail_nb_count;
4113         }
4114
4115         switch (spec_mae->ft_rule_type) {
4116         case SFC_FT_RULE_NONE:
4117                 break;
4118         case SFC_FT_RULE_JUMP:
4119                 /* Workaround. See sfc_flow_parse_rte_to_mae() */
4120                 rc = sfc_mae_rule_parse_action_pf_vf(sa, NULL, ctx.spec);
4121                 if (rc != 0)
4122                         goto fail_workaround_jump_delivery;
4123
4124                 ctx.counter_ft = spec_mae->ft;
4125                 break;
4126         case SFC_FT_RULE_GROUP:
4127                 /*
4128                  * Packets that go to the rule's AR have FT mark set (from the
4129                  * JUMP rule OR's RECIRC_ID). Remove this mark in matching
4130                  * packets. The user may have provided their own action
4131                  * MARK above, so don't check the return value here.
4132                  */
4133                 (void)efx_mae_action_set_populate_mark(ctx.spec, 0);
4134
4135                 ctx.ft_group_hit_counter = &spec_mae->ft->group_hit_counter;
4136                 break;
4137         default:
4138                 SFC_ASSERT(B_FALSE);
4139         }
4140
4141         spec_mae->action_set = sfc_mae_action_set_attach(sa, &ctx);
4142         if (spec_mae->action_set != NULL) {
4143                 sfc_mae_encap_header_del(sa, ctx.encap_header);
4144                 efx_mae_action_set_spec_fini(sa->nic, ctx.spec);
4145                 return 0;
4146         }
4147
4148         rc = sfc_mae_action_set_add(sa, actions, &ctx, &spec_mae->action_set);
4149         if (rc != 0)
4150                 goto fail_action_set_add;
4151
4152         return 0;
4153
4154 fail_action_set_add:
4155 fail_workaround_jump_delivery:
4156 fail_nb_count:
4157         sfc_mae_encap_header_del(sa, ctx.encap_header);
4158
4159 fail_process_encap_header:
4160 fail_rule_parse_action:
4161         sfc_mae_mac_addr_del(sa, ctx.src_mac);
4162         sfc_mae_mac_addr_del(sa, ctx.dst_mac);
4163         efx_mae_action_set_spec_fini(sa->nic, ctx.spec);
4164
4165 fail_enforce_ft_count:
4166 fail_enforce_ft_decap:
4167 fail_action_set_spec_init:
4168         if (rc > 0 && rte_errno == 0) {
4169                 rc = rte_flow_error_set(error, rc,
4170                         RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
4171                         NULL, "Failed to process the action");
4172         }
4173         return rc;
4174 }
4175
4176 static bool
4177 sfc_mae_rules_class_cmp(struct sfc_adapter *sa,
4178                         const efx_mae_match_spec_t *left,
4179                         const efx_mae_match_spec_t *right)
4180 {
4181         bool have_same_class;
4182         int rc;
4183
4184         rc = efx_mae_match_specs_class_cmp(sa->nic, left, right,
4185                                            &have_same_class);
4186
4187         return (rc == 0) ? have_same_class : false;
4188 }
4189
4190 static int
4191 sfc_mae_outer_rule_class_verify(struct sfc_adapter *sa,
4192                                 struct sfc_mae_outer_rule *rule)
4193 {
4194         struct sfc_mae_fw_rsrc *fw_rsrc = &rule->fw_rsrc;
4195         struct sfc_mae_outer_rule *entry;
4196         struct sfc_mae *mae = &sa->mae;
4197
4198         if (fw_rsrc->rule_id.id != EFX_MAE_RSRC_ID_INVALID) {
4199                 /* An active rule is reused. It's class is wittingly valid. */
4200                 return 0;
4201         }
4202
4203         TAILQ_FOREACH_REVERSE(entry, &mae->outer_rules,
4204                               sfc_mae_outer_rules, entries) {
4205                 const efx_mae_match_spec_t *left = entry->match_spec;
4206                 const efx_mae_match_spec_t *right = rule->match_spec;
4207
4208                 if (entry == rule)
4209                         continue;
4210
4211                 if (sfc_mae_rules_class_cmp(sa, left, right))
4212                         return 0;
4213         }
4214
4215         sfc_info(sa, "for now, the HW doesn't support rule validation, and HW "
4216                  "support for outer frame pattern items is not guaranteed; "
4217                  "other than that, the items are valid from SW standpoint");
4218         return 0;
4219 }
4220
4221 static int
4222 sfc_mae_action_rule_class_verify(struct sfc_adapter *sa,
4223                                  struct sfc_flow_spec_mae *spec)
4224 {
4225         const struct rte_flow *entry;
4226
4227         if (spec->match_spec == NULL)
4228                 return 0;
4229
4230         TAILQ_FOREACH_REVERSE(entry, &sa->flow_list, sfc_flow_list, entries) {
4231                 const struct sfc_flow_spec *entry_spec = &entry->spec;
4232                 const struct sfc_flow_spec_mae *es_mae = &entry_spec->mae;
4233                 const efx_mae_match_spec_t *left = es_mae->match_spec;
4234                 const efx_mae_match_spec_t *right = spec->match_spec;
4235
4236                 switch (entry_spec->type) {
4237                 case SFC_FLOW_SPEC_FILTER:
4238                         /* Ignore VNIC-level flows */
4239                         break;
4240                 case SFC_FLOW_SPEC_MAE:
4241                         if (sfc_mae_rules_class_cmp(sa, left, right))
4242                                 return 0;
4243                         break;
4244                 default:
4245                         SFC_ASSERT(false);
4246                 }
4247         }
4248
4249         sfc_info(sa, "for now, the HW doesn't support rule validation, and HW "
4250                  "support for inner frame pattern items is not guaranteed; "
4251                  "other than that, the items are valid from SW standpoint");
4252         return 0;
4253 }
4254
4255 /**
4256  * Confirm that a given flow can be accepted by the FW.
4257  *
4258  * @param sa
4259  *   Software adapter context
4260  * @param flow
4261  *   Flow to be verified
4262  * @return
4263  *   Zero on success and non-zero in the case of error.
4264  *   A special value of EAGAIN indicates that the adapter is
4265  *   not in started state. This state is compulsory because
4266  *   it only makes sense to compare the rule class of the flow
4267  *   being validated with classes of the active rules.
4268  *   Such classes are wittingly supported by the FW.
4269  */
4270 int
4271 sfc_mae_flow_verify(struct sfc_adapter *sa,
4272                     struct rte_flow *flow)
4273 {
4274         struct sfc_flow_spec *spec = &flow->spec;
4275         struct sfc_flow_spec_mae *spec_mae = &spec->mae;
4276         struct sfc_mae_outer_rule *outer_rule = spec_mae->outer_rule;
4277         int rc;
4278
4279         SFC_ASSERT(sfc_adapter_is_locked(sa));
4280
4281         if (sa->state != SFC_ETHDEV_STARTED)
4282                 return EAGAIN;
4283
4284         if (outer_rule != NULL) {
4285                 rc = sfc_mae_outer_rule_class_verify(sa, outer_rule);
4286                 if (rc != 0)
4287                         return rc;
4288         }
4289
4290         return sfc_mae_action_rule_class_verify(sa, spec_mae);
4291 }
4292
4293 int
4294 sfc_mae_flow_insert(struct sfc_adapter *sa,
4295                     struct rte_flow *flow)
4296 {
4297         struct sfc_flow_spec *spec = &flow->spec;
4298         struct sfc_flow_spec_mae *spec_mae = &spec->mae;
4299         struct sfc_mae_outer_rule *outer_rule = spec_mae->outer_rule;
4300         struct sfc_mae_action_set *action_set = spec_mae->action_set;
4301         struct sfc_mae_fw_rsrc *fw_rsrc;
4302         int rc;
4303
4304         SFC_ASSERT(spec_mae->rule_id.id == EFX_MAE_RSRC_ID_INVALID);
4305
4306         if (outer_rule != NULL) {
4307                 rc = sfc_mae_outer_rule_enable(sa, outer_rule,
4308                                                spec_mae->match_spec);
4309                 if (rc != 0)
4310                         goto fail_outer_rule_enable;
4311         }
4312
4313         if (spec_mae->ft_rule_type == SFC_FT_RULE_JUMP) {
4314                 spec_mae->ft->reset_jump_hit_counter =
4315                         spec_mae->ft->group_hit_counter;
4316         }
4317
4318         if (action_set == NULL) {
4319                 sfc_dbg(sa, "enabled flow=%p (no AR)", flow);
4320                 return 0;
4321         }
4322
4323         rc = sfc_mae_action_set_enable(sa, action_set);
4324         if (rc != 0)
4325                 goto fail_action_set_enable;
4326
4327         if (action_set->n_counters > 0) {
4328                 rc = sfc_mae_counter_start(sa);
4329                 if (rc != 0) {
4330                         sfc_err(sa, "failed to start MAE counters support: %s",
4331                                 rte_strerror(rc));
4332                         goto fail_mae_counter_start;
4333                 }
4334         }
4335
4336         fw_rsrc = &action_set->fw_rsrc;
4337
4338         rc = efx_mae_action_rule_insert(sa->nic, spec_mae->match_spec,
4339                                         NULL, &fw_rsrc->aset_id,
4340                                         &spec_mae->rule_id);
4341         if (rc != 0)
4342                 goto fail_action_rule_insert;
4343
4344         sfc_dbg(sa, "enabled flow=%p: AR_ID=0x%08x",
4345                 flow, spec_mae->rule_id.id);
4346
4347         return 0;
4348
4349 fail_action_rule_insert:
4350 fail_mae_counter_start:
4351         sfc_mae_action_set_disable(sa, action_set);
4352
4353 fail_action_set_enable:
4354         if (outer_rule != NULL)
4355                 sfc_mae_outer_rule_disable(sa, outer_rule);
4356
4357 fail_outer_rule_enable:
4358         return rc;
4359 }
4360
4361 int
4362 sfc_mae_flow_remove(struct sfc_adapter *sa,
4363                     struct rte_flow *flow)
4364 {
4365         struct sfc_flow_spec *spec = &flow->spec;
4366         struct sfc_flow_spec_mae *spec_mae = &spec->mae;
4367         struct sfc_mae_action_set *action_set = spec_mae->action_set;
4368         struct sfc_mae_outer_rule *outer_rule = spec_mae->outer_rule;
4369         int rc;
4370
4371         if (action_set == NULL) {
4372                 sfc_dbg(sa, "disabled flow=%p (no AR)", flow);
4373                 goto skip_action_rule;
4374         }
4375
4376         SFC_ASSERT(spec_mae->rule_id.id != EFX_MAE_RSRC_ID_INVALID);
4377
4378         rc = efx_mae_action_rule_remove(sa->nic, &spec_mae->rule_id);
4379         if (rc != 0) {
4380                 sfc_err(sa, "failed to disable flow=%p with AR_ID=0x%08x: %s",
4381                         flow, spec_mae->rule_id.id, strerror(rc));
4382         }
4383         sfc_dbg(sa, "disabled flow=%p with AR_ID=0x%08x",
4384                 flow, spec_mae->rule_id.id);
4385         spec_mae->rule_id.id = EFX_MAE_RSRC_ID_INVALID;
4386
4387         sfc_mae_action_set_disable(sa, action_set);
4388
4389 skip_action_rule:
4390         if (outer_rule != NULL)
4391                 sfc_mae_outer_rule_disable(sa, outer_rule);
4392
4393         return 0;
4394 }
4395
4396 static int
4397 sfc_mae_query_counter(struct sfc_adapter *sa,
4398                       struct sfc_flow_spec_mae *spec,
4399                       const struct rte_flow_action *action,
4400                       struct rte_flow_query_count *data,
4401                       struct rte_flow_error *error)
4402 {
4403         struct sfc_mae_action_set *action_set = spec->action_set;
4404         const struct rte_flow_action_count *conf = action->conf;
4405         unsigned int i;
4406         int rc;
4407
4408         if (action_set == NULL || action_set->n_counters == 0) {
4409                 return rte_flow_error_set(error, EINVAL,
4410                         RTE_FLOW_ERROR_TYPE_ACTION, action,
4411                         "Queried flow rule does not have count actions");
4412         }
4413
4414         for (i = 0; i < action_set->n_counters; i++) {
4415                 /*
4416                  * Get the first available counter of the flow rule if
4417                  * counter ID is not specified, provided that this
4418                  * counter is not an automatic (implicit) one.
4419                  */
4420                 if (conf != NULL && action_set->counters[i].rte_id != conf->id)
4421                         continue;
4422
4423                 rc = sfc_mae_counter_get(&sa->mae.counter_registry.counters,
4424                                          &action_set->counters[i], data);
4425                 if (rc != 0) {
4426                         return rte_flow_error_set(error, EINVAL,
4427                                 RTE_FLOW_ERROR_TYPE_ACTION, action,
4428                                 "Queried flow rule counter action is invalid");
4429                 }
4430
4431                 return 0;
4432         }
4433
4434         return rte_flow_error_set(error, ENOENT,
4435                                   RTE_FLOW_ERROR_TYPE_ACTION, action,
4436                                   "no such flow rule action or such count ID");
4437 }
4438
4439 int
4440 sfc_mae_flow_query(struct rte_eth_dev *dev,
4441                    struct rte_flow *flow,
4442                    const struct rte_flow_action *action,
4443                    void *data,
4444                    struct rte_flow_error *error)
4445 {
4446         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
4447         struct sfc_flow_spec *spec = &flow->spec;
4448         struct sfc_flow_spec_mae *spec_mae = &spec->mae;
4449
4450         switch (action->type) {
4451         case RTE_FLOW_ACTION_TYPE_COUNT:
4452                 return sfc_mae_query_counter(sa, spec_mae, action,
4453                                              data, error);
4454         default:
4455                 return rte_flow_error_set(error, ENOTSUP,
4456                         RTE_FLOW_ERROR_TYPE_ACTION, NULL,
4457                         "Query for action of this type is not supported");
4458         }
4459 }
4460
4461 int
4462 sfc_mae_switchdev_init(struct sfc_adapter *sa)
4463 {
4464         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
4465         struct sfc_mae *mae = &sa->mae;
4466         efx_mport_sel_t pf;
4467         efx_mport_sel_t phy;
4468         int rc;
4469
4470         sfc_log_init(sa, "entry");
4471
4472         if (!sa->switchdev) {
4473                 sfc_log_init(sa, "switchdev is not enabled - skip");
4474                 return 0;
4475         }
4476
4477         if (mae->status != SFC_MAE_STATUS_ADMIN) {
4478                 rc = ENOTSUP;
4479                 sfc_err(sa, "failed to init switchdev - no admin MAE privilege");
4480                 goto fail_no_mae;
4481         }
4482
4483         rc = efx_mae_mport_by_pcie_function(encp->enc_pf, EFX_PCI_VF_INVALID,
4484                                             &pf);
4485         if (rc != 0) {
4486                 sfc_err(sa, "failed get PF mport");
4487                 goto fail_pf_get;
4488         }
4489
4490         rc = efx_mae_mport_by_phy_port(encp->enc_assigned_port, &phy);
4491         if (rc != 0) {
4492                 sfc_err(sa, "failed get PHY mport");
4493                 goto fail_phy_get;
4494         }
4495
4496         rc = sfc_mae_rule_add_mport_match_deliver(sa, &pf, &phy,
4497                         SFC_MAE_RULE_PRIO_LOWEST,
4498                         &mae->switchdev_rule_pf_to_ext);
4499         if (rc != 0) {
4500                 sfc_err(sa, "failed add MAE rule to forward from PF to PHY");
4501                 goto fail_pf_add;
4502         }
4503
4504         rc = sfc_mae_rule_add_mport_match_deliver(sa, &phy, &pf,
4505                         SFC_MAE_RULE_PRIO_LOWEST,
4506                         &mae->switchdev_rule_ext_to_pf);
4507         if (rc != 0) {
4508                 sfc_err(sa, "failed add MAE rule to forward from PHY to PF");
4509                 goto fail_phy_add;
4510         }
4511
4512         sfc_log_init(sa, "done");
4513
4514         return 0;
4515
4516 fail_phy_add:
4517         sfc_mae_rule_del(sa, mae->switchdev_rule_pf_to_ext);
4518
4519 fail_pf_add:
4520 fail_phy_get:
4521 fail_pf_get:
4522 fail_no_mae:
4523         sfc_log_init(sa, "failed: %s", rte_strerror(rc));
4524         return rc;
4525 }
4526
4527 void
4528 sfc_mae_switchdev_fini(struct sfc_adapter *sa)
4529 {
4530         struct sfc_mae *mae = &sa->mae;
4531
4532         if (!sa->switchdev)
4533                 return;
4534
4535         sfc_mae_rule_del(sa, mae->switchdev_rule_pf_to_ext);
4536         sfc_mae_rule_del(sa, mae->switchdev_rule_ext_to_pf);
4537 }