drivers/net/mlx5/mlx5_flow_verbs.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright 2018 Mellanox Technologies, Ltd
   3  */
   4
   5 #include <netinet/in.h>
   6 #include <sys/queue.h>
   7 #include <stdalign.h>
   8 #include <stdint.h>
   9 #include <string.h>
  10
  11 #include <rte_common.h>
  12 #include <rte_ether.h>
  13 #include <ethdev_driver.h>
  14 #include <rte_flow.h>
  15 #include <rte_flow_driver.h>
  16 #include <rte_malloc.h>
  17 #include <rte_ip.h>
  18
  19 #include <mlx5_glue.h>
  20 #include <mlx5_prm.h>
  21 #include <mlx5_malloc.h>
  22
  23 #include "mlx5_defs.h"
  24 #include "mlx5.h"
  25 #include "mlx5_flow.h"
  26 #include "mlx5_rx.h"
  27
  28 #define VERBS_SPEC_INNER(item_flags) \
  29         (!!((item_flags) & MLX5_FLOW_LAYER_TUNNEL) ? IBV_FLOW_SPEC_INNER : 0)
  30
  31 /* Verbs specification header. */
  32 struct ibv_spec_header {
  33         enum ibv_flow_spec_type type;
  34         uint16_t size;
  35 };
  36
  37 /**
  38  * Discover the maximum number of priority available.
  39  *
  40  * @param[in] dev
  41  *   Pointer to the Ethernet device structure.
  42  * @param[in] vprio
  43  *   Expected result variants.
  44  * @param[in] vprio_n
  45  *   Number of entries in @p vprio array.
  46  * @return
  47  *   Number of supported flow priority on success, a negative errno
  48  *   value otherwise and rte_errno is set.
  49  */
  50 static int
  51 flow_verbs_discover_priorities(struct rte_eth_dev *dev,
  52                                const uint16_t *vprio, int vprio_n)
  53 {
  54         struct mlx5_priv *priv = dev->data->dev_private;
  55         struct {
  56                 struct ibv_flow_attr attr;
  57                 struct ibv_flow_spec_eth eth;
  58                 struct ibv_flow_spec_action_drop drop;
  59         } flow_attr = {
  60                 .attr = {
  61                         .num_of_specs = 2,
  62                         .port = (uint8_t)priv->dev_port,
  63                 },
  64                 .eth = {
  65                         .type = IBV_FLOW_SPEC_ETH,
  66                         .size = sizeof(struct ibv_flow_spec_eth),
  67                 },
  68                 .drop = {
  69                         .size = sizeof(struct ibv_flow_spec_action_drop),
  70                         .type = IBV_FLOW_SPEC_ACTION_DROP,
  71                 },
  72         };
  73         struct ibv_flow *flow;
  74         struct mlx5_hrxq *drop = priv->drop_queue.hrxq;
  75         int i;
  76         int priority = 0;
  77
  78 #if defined(HAVE_MLX5DV_DR_DEVX_PORT) || defined(HAVE_MLX5DV_DR_DEVX_PORT_V35)
  79         /* If DevX supported, driver must support 16 verbs flow priorities. */
  80         priority = 16;
  81         goto out;
  82 #endif
  83         if (!drop->qp) {
  84                 rte_errno = ENOTSUP;
  85                 return -rte_errno;
  86         }
  87         for (i = 0; i != vprio_n; i++) {
  88                 flow_attr.attr.priority = vprio[i] - 1;
  89                 flow = mlx5_glue->create_flow(drop->qp, &flow_attr.attr);
  90                 if (!flow)
  91                         break;
  92                 claim_zero(mlx5_glue->destroy_flow(flow));
  93                 priority = vprio[i];
  94         }
  95 #if defined(HAVE_MLX5DV_DR_DEVX_PORT) || defined(HAVE_MLX5DV_DR_DEVX_PORT_V35)
  96 out:
  97 #endif
  98         DRV_LOG(INFO, "port %u supported flow priorities:"
  99                 " 0-%d for ingress or egress root table,"
 100                 " 0-%d for non-root table or transfer root table.",
 101                 dev->data->port_id, priority - 2,
 102                 MLX5_NON_ROOT_FLOW_MAX_PRIO - 1);
 103         return priority;
 104 }
 105
 106 /**
 107  * Get Verbs flow counter by index.
 108  *
 109  * @param[in] dev
 110  *   Pointer to the Ethernet device structure.
 111  * @param[in] idx
 112  *   mlx5 flow counter index in the container.
 113  * @param[out] ppool
 114  *   mlx5 flow counter pool in the container,
 115  *
 116  * @return
 117  *   A pointer to the counter, NULL otherwise.
 118  */
 119 static struct mlx5_flow_counter *
 120 flow_verbs_counter_get_by_idx(struct rte_eth_dev *dev,
 121                               uint32_t idx,
 122                               struct mlx5_flow_counter_pool **ppool)
 123 {
 124         struct mlx5_priv *priv = dev->data->dev_private;
 125         struct mlx5_flow_counter_mng *cmng = &priv->sh->cmng;
 126         struct mlx5_flow_counter_pool *pool;
 127
 128         idx = (idx - 1) & (MLX5_CNT_SHARED_OFFSET - 1);
 129         pool = cmng->pools[idx / MLX5_COUNTERS_PER_POOL];
 130         MLX5_ASSERT(pool);
 131         if (ppool)
 132                 *ppool = pool;
 133         return MLX5_POOL_GET_CNT(pool, idx % MLX5_COUNTERS_PER_POOL);
 134 }
 135
 136 /**
 137  * Create Verbs flow counter with Verbs library.
 138  *
 139  * @param[in] dev
 140  *   Pointer to the Ethernet device structure.
 141  * @param[in, out] counter
 142  *   mlx5 flow counter object, contains the counter id,
 143  *   handle of created Verbs flow counter is returned
 144  *   in cs field (if counters are supported).
 145  *
 146  * @return
 147  *   0 On success else a negative errno value is returned
 148  *   and rte_errno is set.
 149  */
 150 static int
 151 flow_verbs_counter_create(struct rte_eth_dev *dev,
 152                           struct mlx5_flow_counter *counter)
 153 {
 154 #if defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42)
 155         struct mlx5_priv *priv = dev->data->dev_private;
 156         struct ibv_context *ctx = priv->sh->cdev->ctx;
 157         struct ibv_counter_set_init_attr init = {
 158                          .counter_set_id = counter->shared_info.id};
 159
 160         counter->dcs_when_free = mlx5_glue->create_counter_set(ctx, &init);
 161         if (!counter->dcs_when_free) {
 162                 rte_errno = ENOTSUP;
 163                 return -ENOTSUP;
 164         }
 165         return 0;
 166 #elif defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45)
 167         struct mlx5_priv *priv = dev->data->dev_private;
 168         struct ibv_context *ctx = priv->sh->cdev->ctx;
 169         struct ibv_counters_init_attr init = {0};
 170         struct ibv_counter_attach_attr attach;
 171         int ret;
 172
 173         memset(&attach, 0, sizeof(attach));
 174         counter->dcs_when_free = mlx5_glue->create_counters(ctx, &init);
 175         if (!counter->dcs_when_free) {
 176                 rte_errno = ENOTSUP;
 177                 return -ENOTSUP;
 178         }
 179         attach.counter_desc = IBV_COUNTER_PACKETS;
 180         attach.index = 0;
 181         ret = mlx5_glue->attach_counters(counter->dcs_when_free, &attach, NULL);
 182         if (!ret) {
 183                 attach.counter_desc = IBV_COUNTER_BYTES;
 184                 attach.index = 1;
 185                 ret = mlx5_glue->attach_counters
 186                                         (counter->dcs_when_free, &attach, NULL);
 187         }
 188         if (ret) {
 189                 claim_zero(mlx5_glue->destroy_counters(counter->dcs_when_free));
 190                 counter->dcs_when_free = NULL;
 191                 rte_errno = ret;
 192                 return -ret;
 193         }
 194         return 0;
 195 #else
 196         (void)dev;
 197         (void)counter;
 198         rte_errno = ENOTSUP;
 199         return -ENOTSUP;
 200 #endif
 201 }
 202
 203 /**
 204  * Get a flow counter.
 205  *
 206  * @param[in] dev
 207  *   Pointer to the Ethernet device structure.
 208  * @param[in] id
 209  *   Counter identifier.
 210  *
 211  * @return
 212  *   Index to the counter, 0 otherwise and rte_errno is set.
 213  */
 214 static uint32_t
 215 flow_verbs_counter_new(struct rte_eth_dev *dev, uint32_t id __rte_unused)
 216 {
 217         struct mlx5_priv *priv = dev->data->dev_private;
 218         struct mlx5_flow_counter_mng *cmng = &priv->sh->cmng;
 219         struct mlx5_flow_counter_pool *pool = NULL;
 220         struct mlx5_flow_counter *cnt = NULL;
 221         uint32_t n_valid = cmng->n_valid;
 222         uint32_t pool_idx, cnt_idx;
 223         uint32_t i;
 224         int ret;
 225
 226         for (pool_idx = 0; pool_idx < n_valid; ++pool_idx) {
 227                 pool = cmng->pools[pool_idx];
 228                 if (!pool)
 229                         continue;
 230                 cnt = TAILQ_FIRST(&pool->counters[0]);
 231                 if (cnt)
 232                         break;
 233         }
 234         if (!cnt) {
 235                 struct mlx5_flow_counter_pool **pools;
 236                 uint32_t size;
 237
 238                 if (n_valid == cmng->n) {
 239                         /* Resize the container pool array. */
 240                         size = sizeof(struct mlx5_flow_counter_pool *) *
 241                                      (n_valid + MLX5_CNT_CONTAINER_RESIZE);
 242                         pools = mlx5_malloc(MLX5_MEM_ZERO, size, 0,
 243                                             SOCKET_ID_ANY);
 244                         if (!pools)
 245                                 return 0;
 246                         if (n_valid) {
 247                                 memcpy(pools, cmng->pools,
 248                                        sizeof(struct mlx5_flow_counter_pool *) *
 249                                        n_valid);
 250                                 mlx5_free(cmng->pools);
 251                         }
 252                         cmng->pools = pools;
 253                         cmng->n += MLX5_CNT_CONTAINER_RESIZE;
 254                 }
 255                 /* Allocate memory for new pool*/
 256                 size = sizeof(*pool) + sizeof(*cnt) * MLX5_COUNTERS_PER_POOL;
 257                 pool = mlx5_malloc(MLX5_MEM_ZERO, size, 0, SOCKET_ID_ANY);
 258                 if (!pool)
 259                         return 0;
 260                 for (i = 0; i < MLX5_COUNTERS_PER_POOL; ++i) {
 261                         cnt = MLX5_POOL_GET_CNT(pool, i);
 262                         TAILQ_INSERT_HEAD(&pool->counters[0], cnt, next);
 263                 }
 264                 cnt = MLX5_POOL_GET_CNT(pool, 0);
 265                 cmng->pools[n_valid] = pool;
 266                 pool_idx = n_valid;
 267                 cmng->n_valid++;
 268         }
 269         TAILQ_REMOVE(&pool->counters[0], cnt, next);
 270         i = MLX5_CNT_ARRAY_IDX(pool, cnt);
 271         cnt_idx = MLX5_MAKE_CNT_IDX(pool_idx, i);
 272         /* Create counter with Verbs. */
 273         ret = flow_verbs_counter_create(dev, cnt);
 274         if (!ret) {
 275                 cnt->dcs_when_active = cnt->dcs_when_free;
 276                 cnt->hits = 0;
 277                 cnt->bytes = 0;
 278                 return cnt_idx;
 279         }
 280         TAILQ_INSERT_HEAD(&pool->counters[0], cnt, next);
 281         /* Some error occurred in Verbs library. */
 282         rte_errno = -ret;
 283         return 0;
 284 }
 285
 286 /**
 287  * Release a flow counter.
 288  *
 289  * @param[in] dev
 290  *   Pointer to the Ethernet device structure.
 291  * @param[in] counter
 292  *   Index to the counter handler.
 293  */
 294 static void
 295 flow_verbs_counter_release(struct rte_eth_dev *dev, uint32_t counter)
 296 {
 297         struct mlx5_flow_counter_pool *pool;
 298         struct mlx5_flow_counter *cnt;
 299
 300         cnt = flow_verbs_counter_get_by_idx(dev, counter, &pool);
 301 #if defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42)
 302         claim_zero(mlx5_glue->destroy_counter_set
 303                         ((struct ibv_counter_set *)cnt->dcs_when_active));
 304 #elif defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45)
 305         claim_zero(mlx5_glue->destroy_counters
 306                                 ((struct ibv_counters *)cnt->dcs_when_active));
 307 #endif
 308         TAILQ_INSERT_HEAD(&pool->counters[0], cnt, next);
 309 }
 310
 311 /**
 312  * Query a flow counter via Verbs library call.
 313  *
 314  * @see rte_flow_query()
 315  * @see rte_flow_ops
 316  */
 317 static int
 318 flow_verbs_counter_query(struct rte_eth_dev *dev __rte_unused,
 319                          struct rte_flow *flow, void *data,
 320                          struct rte_flow_error *error)
 321 {
 322 #if defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42) || \
 323         defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45)
 324         if (flow->counter) {
 325                 struct mlx5_flow_counter_pool *pool;
 326                 struct mlx5_flow_counter *cnt = flow_verbs_counter_get_by_idx
 327                                                 (dev, flow->counter, &pool);
 328                 struct rte_flow_query_count *qc = data;
 329                 uint64_t counters[2] = {0, 0};
 330 #if defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42)
 331                 struct ibv_query_counter_set_attr query_cs_attr = {
 332                         .dcs_when_free = (struct ibv_counter_set *)
 333                                                 cnt->dcs_when_active,
 334                         .query_flags = IBV_COUNTER_SET_FORCE_UPDATE,
 335                 };
 336                 struct ibv_counter_set_data query_out = {
 337                         .out = counters,
 338                         .outlen = 2 * sizeof(uint64_t),
 339                 };
 340                 int err = mlx5_glue->query_counter_set(&query_cs_attr,
 341                                                        &query_out);
 342 #elif defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45)
 343                 int err = mlx5_glue->query_counters
 344                         ((struct ibv_counters *)cnt->dcs_when_active, counters,
 345                                 RTE_DIM(counters),
 346                                 IBV_READ_COUNTERS_ATTR_PREFER_CACHED);
 347 #endif
 348                 if (err)
 349                         return rte_flow_error_set
 350                                 (error, err,
 351                                  RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 352                                  NULL,
 353                                  "cannot read counter");
 354                 qc->hits_set = 1;
 355                 qc->bytes_set = 1;
 356                 qc->hits = counters[0] - cnt->hits;
 357                 qc->bytes = counters[1] - cnt->bytes;
 358                 if (qc->reset) {
 359                         cnt->hits = counters[0];
 360                         cnt->bytes = counters[1];
 361                 }
 362                 return 0;
 363         }
 364         return rte_flow_error_set(error, EINVAL,
 365                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 366                                   NULL,
 367                                   "flow does not have counter");
 368 #else
 369         (void)flow;
 370         (void)data;
 371         return rte_flow_error_set(error, ENOTSUP,
 372                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 373                                   NULL,
 374                                   "counters are not available");
 375 #endif
 376 }
 377
 378 /**
 379  * Add a verbs item specification into @p verbs.
 380  *
 381  * @param[out] verbs
 382  *   Pointer to verbs structure.
 383  * @param[in] src
 384  *   Create specification.
 385  * @param[in] size
 386  *   Size in bytes of the specification to copy.
 387  */
 388 static void
 389 flow_verbs_spec_add(struct mlx5_flow_verbs_workspace *verbs,
 390                     void *src, unsigned int size)
 391 {
 392         void *dst;
 393
 394         if (!verbs)
 395                 return;
 396         MLX5_ASSERT(verbs->specs);
 397         dst = (void *)(verbs->specs + verbs->size);
 398         memcpy(dst, src, size);
 399         ++verbs->attr.num_of_specs;
 400         verbs->size += size;
 401 }
 402
 403 /**
 404  * Convert the @p item into a Verbs specification. This function assumes that
 405  * the input is valid and that there is space to insert the requested item
 406  * into the flow.
 407  *
 408  * @param[in, out] dev_flow
 409  *   Pointer to dev_flow structure.
 410  * @param[in] item
 411  *   Item specification.
 412  * @param[in] item_flags
 413  *   Parsed item flags.
 414  */
 415 static void
 416 flow_verbs_translate_item_eth(struct mlx5_flow *dev_flow,
 417                               const struct rte_flow_item *item,
 418                               uint64_t item_flags)
 419 {
 420         const struct rte_flow_item_eth *spec = item->spec;
 421         const struct rte_flow_item_eth *mask = item->mask;
 422         const unsigned int size = sizeof(struct ibv_flow_spec_eth);
 423         struct ibv_flow_spec_eth eth = {
 424                 .type = IBV_FLOW_SPEC_ETH | VERBS_SPEC_INNER(item_flags),
 425                 .size = size,
 426         };
 427
 428         if (!mask)
 429                 mask = &rte_flow_item_eth_mask;
 430         if (spec) {
 431                 unsigned int i;
 432
 433                 memcpy(&eth.val.dst_mac, spec->dst.addr_bytes,
 434                         RTE_ETHER_ADDR_LEN);
 435                 memcpy(&eth.val.src_mac, spec->src.addr_bytes,
 436                         RTE_ETHER_ADDR_LEN);
 437                 eth.val.ether_type = spec->type;
 438                 memcpy(&eth.mask.dst_mac, mask->dst.addr_bytes,
 439                         RTE_ETHER_ADDR_LEN);
 440                 memcpy(&eth.mask.src_mac, mask->src.addr_bytes,
 441                         RTE_ETHER_ADDR_LEN);
 442                 eth.mask.ether_type = mask->type;
 443                 /* Remove unwanted bits from values. */
 444                 for (i = 0; i < RTE_ETHER_ADDR_LEN; ++i) {
 445                         eth.val.dst_mac[i] &= eth.mask.dst_mac[i];
 446                         eth.val.src_mac[i] &= eth.mask.src_mac[i];
 447                 }
 448                 eth.val.ether_type &= eth.mask.ether_type;
 449         }
 450         flow_verbs_spec_add(&dev_flow->verbs, &eth, size);
 451 }
 452
 453 /**
 454  * Update the VLAN tag in the Verbs Ethernet specification.
 455  * This function assumes that the input is valid and there is space to add
 456  * the requested item.
 457  *
 458  * @param[in, out] attr
 459  *   Pointer to Verbs attributes structure.
 460  * @param[in] eth
 461  *   Verbs structure containing the VLAN information to copy.
 462  */
 463 static void
 464 flow_verbs_item_vlan_update(struct ibv_flow_attr *attr,
 465                             struct ibv_flow_spec_eth *eth)
 466 {
 467         unsigned int i;
 468         const enum ibv_flow_spec_type search = eth->type;
 469         struct ibv_spec_header *hdr = (struct ibv_spec_header *)
 470                 ((uint8_t *)attr + sizeof(struct ibv_flow_attr));
 471
 472         for (i = 0; i != attr->num_of_specs; ++i) {
 473                 if (hdr->type == search) {
 474                         struct ibv_flow_spec_eth *e =
 475                                 (struct ibv_flow_spec_eth *)hdr;
 476
 477                         e->val.vlan_tag = eth->val.vlan_tag;
 478                         e->mask.vlan_tag = eth->mask.vlan_tag;
 479                         e->val.ether_type = eth->val.ether_type;
 480                         e->mask.ether_type = eth->mask.ether_type;
 481                         break;
 482                 }
 483                 hdr = (struct ibv_spec_header *)((uint8_t *)hdr + hdr->size);
 484         }
 485 }
 486
 487 /**
 488  * Convert the @p item into a Verbs specification. This function assumes that
 489  * the input is valid and that there is space to insert the requested item
 490  * into the flow.
 491  *
 492  * @param[in, out] dev_flow
 493  *   Pointer to dev_flow structure.
 494  * @param[in] item
 495  *   Item specification.
 496  * @param[in] item_flags
 497  *   Parsed item flags.
 498  */
 499 static void
 500 flow_verbs_translate_item_vlan(struct mlx5_flow *dev_flow,
 501                                const struct rte_flow_item *item,
 502                                uint64_t item_flags)
 503 {
 504         const struct rte_flow_item_vlan *spec = item->spec;
 505         const struct rte_flow_item_vlan *mask = item->mask;
 506         unsigned int size = sizeof(struct ibv_flow_spec_eth);
 507         const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
 508         struct ibv_flow_spec_eth eth = {
 509                 .type = IBV_FLOW_SPEC_ETH | VERBS_SPEC_INNER(item_flags),
 510                 .size = size,
 511         };
 512         const uint32_t l2m = tunnel ? MLX5_FLOW_LAYER_INNER_L2 :
 513                                       MLX5_FLOW_LAYER_OUTER_L2;
 514
 515         if (!mask)
 516                 mask = &rte_flow_item_vlan_mask;
 517         if (spec) {
 518                 eth.val.vlan_tag = spec->tci;
 519                 eth.mask.vlan_tag = mask->tci;
 520                 eth.val.vlan_tag &= eth.mask.vlan_tag;
 521                 eth.val.ether_type = spec->inner_type;
 522                 eth.mask.ether_type = mask->inner_type;
 523                 eth.val.ether_type &= eth.mask.ether_type;
 524         }
 525         if (!(item_flags & l2m))
 526                 flow_verbs_spec_add(&dev_flow->verbs, &eth, size);
 527         else
 528                 flow_verbs_item_vlan_update(&dev_flow->verbs.attr, &eth);
 529         if (!tunnel)
 530                 dev_flow->handle->vf_vlan.tag =
 531                         rte_be_to_cpu_16(spec->tci) & 0x0fff;
 532 }
 533
 534 /**
 535  * Convert the @p item into a Verbs specification. This function assumes that
 536  * the input is valid and that there is space to insert the requested item
 537  * into the flow.
 538  *
 539  * @param[in, out] dev_flow
 540  *   Pointer to dev_flow structure.
 541  * @param[in] item
 542  *   Item specification.
 543  * @param[in] item_flags
 544  *   Parsed item flags.
 545  */
 546 static void
 547 flow_verbs_translate_item_ipv4(struct mlx5_flow *dev_flow,
 548                                const struct rte_flow_item *item,
 549                                uint64_t item_flags)
 550 {
 551         const struct rte_flow_item_ipv4 *spec = item->spec;
 552         const struct rte_flow_item_ipv4 *mask = item->mask;
 553         unsigned int size = sizeof(struct ibv_flow_spec_ipv4_ext);
 554         struct ibv_flow_spec_ipv4_ext ipv4 = {
 555                 .type = IBV_FLOW_SPEC_IPV4_EXT | VERBS_SPEC_INNER(item_flags),
 556                 .size = size,
 557         };
 558
 559         if (!mask)
 560                 mask = &rte_flow_item_ipv4_mask;
 561         if (spec) {
 562                 ipv4.val = (struct ibv_flow_ipv4_ext_filter){
 563                         .src_ip = spec->hdr.src_addr,
 564                         .dst_ip = spec->hdr.dst_addr,
 565                         .proto = spec->hdr.next_proto_id,
 566                         .tos = spec->hdr.type_of_service,
 567                 };
 568                 ipv4.mask = (struct ibv_flow_ipv4_ext_filter){
 569                         .src_ip = mask->hdr.src_addr,
 570                         .dst_ip = mask->hdr.dst_addr,
 571                         .proto = mask->hdr.next_proto_id,
 572                         .tos = mask->hdr.type_of_service,
 573                 };
 574                 /* Remove unwanted bits from values. */
 575                 ipv4.val.src_ip &= ipv4.mask.src_ip;
 576                 ipv4.val.dst_ip &= ipv4.mask.dst_ip;
 577                 ipv4.val.proto &= ipv4.mask.proto;
 578                 ipv4.val.tos &= ipv4.mask.tos;
 579         }
 580         flow_verbs_spec_add(&dev_flow->verbs, &ipv4, size);
 581 }
 582
 583 /**
 584  * Convert the @p item into a Verbs specification. This function assumes that
 585  * the input is valid and that there is space to insert the requested item
 586  * into the flow.
 587  *
 588  * @param[in, out] dev_flow
 589  *   Pointer to dev_flow structure.
 590  * @param[in] item
 591  *   Item specification.
 592  * @param[in] item_flags
 593  *   Parsed item flags.
 594  */
 595 static void
 596 flow_verbs_translate_item_ipv6(struct mlx5_flow *dev_flow,
 597                                const struct rte_flow_item *item,
 598                                uint64_t item_flags)
 599 {
 600         const struct rte_flow_item_ipv6 *spec = item->spec;
 601         const struct rte_flow_item_ipv6 *mask = item->mask;
 602         unsigned int size = sizeof(struct ibv_flow_spec_ipv6);
 603         struct ibv_flow_spec_ipv6 ipv6 = {
 604                 .type = IBV_FLOW_SPEC_IPV6 | VERBS_SPEC_INNER(item_flags),
 605                 .size = size,
 606         };
 607
 608         if (!mask)
 609                 mask = &rte_flow_item_ipv6_mask;
 610         if (spec) {
 611                 unsigned int i;
 612                 uint32_t vtc_flow_val;
 613                 uint32_t vtc_flow_mask;
 614
 615                 memcpy(&ipv6.val.src_ip, spec->hdr.src_addr,
 616                        RTE_DIM(ipv6.val.src_ip));
 617                 memcpy(&ipv6.val.dst_ip, spec->hdr.dst_addr,
 618                        RTE_DIM(ipv6.val.dst_ip));
 619                 memcpy(&ipv6.mask.src_ip, mask->hdr.src_addr,
 620                        RTE_DIM(ipv6.mask.src_ip));
 621                 memcpy(&ipv6.mask.dst_ip, mask->hdr.dst_addr,
 622                        RTE_DIM(ipv6.mask.dst_ip));
 623                 vtc_flow_val = rte_be_to_cpu_32(spec->hdr.vtc_flow);
 624                 vtc_flow_mask = rte_be_to_cpu_32(mask->hdr.vtc_flow);
 625                 ipv6.val.flow_label =
 626                         rte_cpu_to_be_32((vtc_flow_val & RTE_IPV6_HDR_FL_MASK) >>
 627                                          RTE_IPV6_HDR_FL_SHIFT);
 628                 ipv6.val.traffic_class = (vtc_flow_val & RTE_IPV6_HDR_TC_MASK) >>
 629                                          RTE_IPV6_HDR_TC_SHIFT;
 630                 ipv6.val.next_hdr = spec->hdr.proto;
 631                 ipv6.mask.flow_label =
 632                         rte_cpu_to_be_32((vtc_flow_mask & RTE_IPV6_HDR_FL_MASK) >>
 633                                          RTE_IPV6_HDR_FL_SHIFT);
 634                 ipv6.mask.traffic_class = (vtc_flow_mask & RTE_IPV6_HDR_TC_MASK) >>
 635                                           RTE_IPV6_HDR_TC_SHIFT;
 636                 ipv6.mask.next_hdr = mask->hdr.proto;
 637                 /* Remove unwanted bits from values. */
 638                 for (i = 0; i < RTE_DIM(ipv6.val.src_ip); ++i) {
 639                         ipv6.val.src_ip[i] &= ipv6.mask.src_ip[i];
 640                         ipv6.val.dst_ip[i] &= ipv6.mask.dst_ip[i];
 641                 }
 642                 ipv6.val.flow_label &= ipv6.mask.flow_label;
 643                 ipv6.val.traffic_class &= ipv6.mask.traffic_class;
 644                 ipv6.val.next_hdr &= ipv6.mask.next_hdr;
 645         }
 646         flow_verbs_spec_add(&dev_flow->verbs, &ipv6, size);
 647 }
 648
 649 /**
 650  * Convert the @p item into a Verbs specification. This function assumes that
 651  * the input is valid and that there is space to insert the requested item
 652  * into the flow.
 653  *
 654  * @param[in, out] dev_flow
 655  *   Pointer to dev_flow structure.
 656  * @param[in] item
 657  *   Item specification.
 658  * @param[in] item_flags
 659  *   Parsed item flags.
 660  */
 661 static void
 662 flow_verbs_translate_item_tcp(struct mlx5_flow *dev_flow,
 663                               const struct rte_flow_item *item,
 664                               uint64_t item_flags __rte_unused)
 665 {
 666         const struct rte_flow_item_tcp *spec = item->spec;
 667         const struct rte_flow_item_tcp *mask = item->mask;
 668         unsigned int size = sizeof(struct ibv_flow_spec_tcp_udp);
 669         struct ibv_flow_spec_tcp_udp tcp = {
 670                 .type = IBV_FLOW_SPEC_TCP | VERBS_SPEC_INNER(item_flags),
 671                 .size = size,
 672         };
 673
 674         if (!mask)
 675                 mask = &rte_flow_item_tcp_mask;
 676         if (spec) {
 677                 tcp.val.dst_port = spec->hdr.dst_port;
 678                 tcp.val.src_port = spec->hdr.src_port;
 679                 tcp.mask.dst_port = mask->hdr.dst_port;
 680                 tcp.mask.src_port = mask->hdr.src_port;
 681                 /* Remove unwanted bits from values. */
 682                 tcp.val.src_port &= tcp.mask.src_port;
 683                 tcp.val.dst_port &= tcp.mask.dst_port;
 684         }
 685         flow_verbs_spec_add(&dev_flow->verbs, &tcp, size);
 686 }
 687
 688 /**
 689  * Convert the @p item into a Verbs specification. This function assumes that
 690  * the input is valid and that there is space to insert the requested item
 691  * into the flow.
 692  *
 693  * @param[in, out] dev_flow
 694  *   Pointer to dev_flow structure.
 695  * @param[in] item
 696  *   Item specification.
 697  * @param[in] item_flags
 698  *   Parsed item flags.
 699  */
 700 static void
 701 flow_verbs_translate_item_udp(struct mlx5_flow *dev_flow,
 702                               const struct rte_flow_item *item,
 703                               uint64_t item_flags __rte_unused)
 704 {
 705         const struct rte_flow_item_udp *spec = item->spec;
 706         const struct rte_flow_item_udp *mask = item->mask;
 707         unsigned int size = sizeof(struct ibv_flow_spec_tcp_udp);
 708         struct ibv_flow_spec_tcp_udp udp = {
 709                 .type = IBV_FLOW_SPEC_UDP | VERBS_SPEC_INNER(item_flags),
 710                 .size = size,
 711         };
 712
 713         if (!mask)
 714                 mask = &rte_flow_item_udp_mask;
 715         if (spec) {
 716                 udp.val.dst_port = spec->hdr.dst_port;
 717                 udp.val.src_port = spec->hdr.src_port;
 718                 udp.mask.dst_port = mask->hdr.dst_port;
 719                 udp.mask.src_port = mask->hdr.src_port;
 720                 /* Remove unwanted bits from values. */
 721                 udp.val.src_port &= udp.mask.src_port;
 722                 udp.val.dst_port &= udp.mask.dst_port;
 723         }
 724         item++;
 725         while (item->type == RTE_FLOW_ITEM_TYPE_VOID)
 726                 item++;
 727         if (!(udp.val.dst_port & udp.mask.dst_port)) {
 728                 switch ((item)->type) {
 729                 case RTE_FLOW_ITEM_TYPE_VXLAN:
 730                         udp.val.dst_port = htons(MLX5_UDP_PORT_VXLAN);
 731                         udp.mask.dst_port = 0xffff;
 732                         break;
 733                 case RTE_FLOW_ITEM_TYPE_VXLAN_GPE:
 734                         udp.val.dst_port = htons(MLX5_UDP_PORT_VXLAN_GPE);
 735                         udp.mask.dst_port = 0xffff;
 736                         break;
 737                 case RTE_FLOW_ITEM_TYPE_MPLS:
 738                         udp.val.dst_port = htons(MLX5_UDP_PORT_MPLS);
 739                         udp.mask.dst_port = 0xffff;
 740                         break;
 741                 default:
 742                         break;
 743                 }
 744         }
 745
 746         flow_verbs_spec_add(&dev_flow->verbs, &udp, size);
 747 }
 748
 749 /**
 750  * Convert the @p item into a Verbs specification. This function assumes that
 751  * the input is valid and that there is space to insert the requested item
 752  * into the flow.
 753  *
 754  * @param[in, out] dev_flow
 755  *   Pointer to dev_flow structure.
 756  * @param[in] item
 757  *   Item specification.
 758  * @param[in] item_flags
 759  *   Parsed item flags.
 760  */
 761 static void
 762 flow_verbs_translate_item_vxlan(struct mlx5_flow *dev_flow,
 763                                 const struct rte_flow_item *item,
 764                                 uint64_t item_flags __rte_unused)
 765 {
 766         const struct rte_flow_item_vxlan *spec = item->spec;
 767         const struct rte_flow_item_vxlan *mask = item->mask;
 768         unsigned int size = sizeof(struct ibv_flow_spec_tunnel);
 769         struct ibv_flow_spec_tunnel vxlan = {
 770                 .type = IBV_FLOW_SPEC_VXLAN_TUNNEL,
 771                 .size = size,
 772         };
 773         union vni {
 774                 uint32_t vlan_id;
 775                 uint8_t vni[4];
 776         } id = { .vlan_id = 0, };
 777
 778         if (!mask)
 779                 mask = &rte_flow_item_vxlan_mask;
 780         if (spec) {
 781                 memcpy(&id.vni[1], spec->vni, 3);
 782                 vxlan.val.tunnel_id = id.vlan_id;
 783                 memcpy(&id.vni[1], mask->vni, 3);
 784                 vxlan.mask.tunnel_id = id.vlan_id;
 785                 /* Remove unwanted bits from values. */
 786                 vxlan.val.tunnel_id &= vxlan.mask.tunnel_id;
 787         }
 788         flow_verbs_spec_add(&dev_flow->verbs, &vxlan, size);
 789 }
 790
 791 /**
 792  * Convert the @p item into a Verbs specification. This function assumes that
 793  * the input is valid and that there is space to insert the requested item
 794  * into the flow.
 795  *
 796  * @param[in, out] dev_flow
 797  *   Pointer to dev_flow structure.
 798  * @param[in] item
 799  *   Item specification.
 800  * @param[in] item_flags
 801  *   Parsed item flags.
 802  */
 803 static void
 804 flow_verbs_translate_item_vxlan_gpe(struct mlx5_flow *dev_flow,
 805                                     const struct rte_flow_item *item,
 806                                     uint64_t item_flags __rte_unused)
 807 {
 808         const struct rte_flow_item_vxlan_gpe *spec = item->spec;
 809         const struct rte_flow_item_vxlan_gpe *mask = item->mask;
 810         unsigned int size = sizeof(struct ibv_flow_spec_tunnel);
 811         struct ibv_flow_spec_tunnel vxlan_gpe = {
 812                 .type = IBV_FLOW_SPEC_VXLAN_TUNNEL,
 813                 .size = size,
 814         };
 815         union vni {
 816                 uint32_t vlan_id;
 817                 uint8_t vni[4];
 818         } id = { .vlan_id = 0, };
 819
 820         if (!mask)
 821                 mask = &rte_flow_item_vxlan_gpe_mask;
 822         if (spec) {
 823                 memcpy(&id.vni[1], spec->vni, 3);
 824                 vxlan_gpe.val.tunnel_id = id.vlan_id;
 825                 memcpy(&id.vni[1], mask->vni, 3);
 826                 vxlan_gpe.mask.tunnel_id = id.vlan_id;
 827                 /* Remove unwanted bits from values. */
 828                 vxlan_gpe.val.tunnel_id &= vxlan_gpe.mask.tunnel_id;
 829         }
 830         flow_verbs_spec_add(&dev_flow->verbs, &vxlan_gpe, size);
 831 }
 832
 833 /**
 834  * Update the protocol in Verbs IPv4/IPv6 spec.
 835  *
 836  * @param[in, out] attr
 837  *   Pointer to Verbs attributes structure.
 838  * @param[in] search
 839  *   Specification type to search in order to update the IP protocol.
 840  * @param[in] protocol
 841  *   Protocol value to set if none is present in the specification.
 842  */
 843 static void
 844 flow_verbs_item_gre_ip_protocol_update(struct ibv_flow_attr *attr,
 845                                        enum ibv_flow_spec_type search,
 846                                        uint8_t protocol)
 847 {
 848         unsigned int i;
 849         struct ibv_spec_header *hdr = (struct ibv_spec_header *)
 850                 ((uint8_t *)attr + sizeof(struct ibv_flow_attr));
 851
 852         if (!attr)
 853                 return;
 854         for (i = 0; i != attr->num_of_specs; ++i) {
 855                 if (hdr->type == search) {
 856                         union {
 857                                 struct ibv_flow_spec_ipv4_ext *ipv4;
 858                                 struct ibv_flow_spec_ipv6 *ipv6;
 859                         } ip;
 860
 861                         switch (search) {
 862                         case IBV_FLOW_SPEC_IPV4_EXT:
 863                                 ip.ipv4 = (struct ibv_flow_spec_ipv4_ext *)hdr;
 864                                 if (!ip.ipv4->val.proto) {
 865                                         ip.ipv4->val.proto = protocol;
 866                                         ip.ipv4->mask.proto = 0xff;
 867                                 }
 868                                 break;
 869                         case IBV_FLOW_SPEC_IPV6:
 870                                 ip.ipv6 = (struct ibv_flow_spec_ipv6 *)hdr;
 871                                 if (!ip.ipv6->val.next_hdr) {
 872                                         ip.ipv6->val.next_hdr = protocol;
 873                                         ip.ipv6->mask.next_hdr = 0xff;
 874                                 }
 875                                 break;
 876                         default:
 877                                 break;
 878                         }
 879                         break;
 880                 }
 881                 hdr = (struct ibv_spec_header *)((uint8_t *)hdr + hdr->size);
 882         }
 883 }
 884
 885 /**
 886  * Convert the @p item into a Verbs specification. This function assumes that
 887  * the input is valid and that there is space to insert the requested item
 888  * into the flow.
 889  *
 890  * @param[in, out] dev_flow
 891  *   Pointer to dev_flow structure.
 892  * @param[in] item
 893  *   Item specification.
 894  * @param[in] item_flags
 895  *   Parsed item flags.
 896  */
 897 static void
 898 flow_verbs_translate_item_gre(struct mlx5_flow *dev_flow,
 899                               const struct rte_flow_item *item __rte_unused,
 900                               uint64_t item_flags)
 901 {
 902         struct mlx5_flow_verbs_workspace *verbs = &dev_flow->verbs;
 903 #ifndef HAVE_IBV_DEVICE_MPLS_SUPPORT
 904         unsigned int size = sizeof(struct ibv_flow_spec_tunnel);
 905         struct ibv_flow_spec_tunnel tunnel = {
 906                 .type = IBV_FLOW_SPEC_VXLAN_TUNNEL,
 907                 .size = size,
 908         };
 909 #else
 910         const struct rte_flow_item_gre *spec = item->spec;
 911         const struct rte_flow_item_gre *mask = item->mask;
 912         unsigned int size = sizeof(struct ibv_flow_spec_gre);
 913         struct ibv_flow_spec_gre tunnel = {
 914                 .type = IBV_FLOW_SPEC_GRE,
 915                 .size = size,
 916         };
 917
 918         if (!mask)
 919                 mask = &rte_flow_item_gre_mask;
 920         if (spec) {
 921                 tunnel.val.c_ks_res0_ver = spec->c_rsvd0_ver;
 922                 tunnel.val.protocol = spec->protocol;
 923                 tunnel.mask.c_ks_res0_ver = mask->c_rsvd0_ver;
 924                 tunnel.mask.protocol = mask->protocol;
 925                 /* Remove unwanted bits from values. */
 926                 tunnel.val.c_ks_res0_ver &= tunnel.mask.c_ks_res0_ver;
 927                 tunnel.val.protocol &= tunnel.mask.protocol;
 928                 tunnel.val.key &= tunnel.mask.key;
 929         }
 930 #endif
 931         if (item_flags & MLX5_FLOW_LAYER_OUTER_L3_IPV4)
 932                 flow_verbs_item_gre_ip_protocol_update(&verbs->attr,
 933                                                        IBV_FLOW_SPEC_IPV4_EXT,
 934                                                        IPPROTO_GRE);
 935         else
 936                 flow_verbs_item_gre_ip_protocol_update(&verbs->attr,
 937                                                        IBV_FLOW_SPEC_IPV6,
 938                                                        IPPROTO_GRE);
 939         flow_verbs_spec_add(verbs, &tunnel, size);
 940 }
 941
 942 /**
 943  * Convert the @p action into a Verbs specification. This function assumes that
 944  * the input is valid and that there is space to insert the requested action
 945  * into the flow. This function also return the action that was added.
 946  *
 947  * @param[in, out] dev_flow
 948  *   Pointer to dev_flow structure.
 949  * @param[in] item
 950  *   Item specification.
 951  * @param[in] item_flags
 952  *   Parsed item flags.
 953  */
 954 static void
 955 flow_verbs_translate_item_mpls(struct mlx5_flow *dev_flow __rte_unused,
 956                                const struct rte_flow_item *item __rte_unused,
 957                                uint64_t item_flags __rte_unused)
 958 {
 959 #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT
 960         const struct rte_flow_item_mpls *spec = item->spec;
 961         const struct rte_flow_item_mpls *mask = item->mask;
 962         unsigned int size = sizeof(struct ibv_flow_spec_mpls);
 963         struct ibv_flow_spec_mpls mpls = {
 964                 .type = IBV_FLOW_SPEC_MPLS,
 965                 .size = size,
 966         };
 967
 968         if (!mask)
 969                 mask = &rte_flow_item_mpls_mask;
 970         if (spec) {
 971                 memcpy(&mpls.val.label, spec, sizeof(mpls.val.label));
 972                 memcpy(&mpls.mask.label, mask, sizeof(mpls.mask.label));
 973                 /* Remove unwanted bits from values.  */
 974                 mpls.val.label &= mpls.mask.label;
 975         }
 976         flow_verbs_spec_add(&dev_flow->verbs, &mpls, size);
 977 #endif
 978 }
 979
 980 /**
 981  * Convert the @p action into a Verbs specification. This function assumes that
 982  * the input is valid and that there is space to insert the requested action
 983  * into the flow.
 984  *
 985  * @param[in] dev_flow
 986  *   Pointer to mlx5_flow.
 987  * @param[in] action
 988  *   Action configuration.
 989  */
 990 static void
 991 flow_verbs_translate_action_drop
 992         (struct mlx5_flow *dev_flow,
 993          const struct rte_flow_action *action __rte_unused)
 994 {
 995         unsigned int size = sizeof(struct ibv_flow_spec_action_drop);
 996         struct ibv_flow_spec_action_drop drop = {
 997                         .type = IBV_FLOW_SPEC_ACTION_DROP,
 998                         .size = size,
 999         };
1000
1001         flow_verbs_spec_add(&dev_flow->verbs, &drop, size);
1002 }
1003
1004 /**
1005  * Convert the @p action into a Verbs specification. This function assumes that
1006  * the input is valid and that there is space to insert the requested action
1007  * into the flow.
1008  *
1009  * @param[in] rss_desc
1010  *   Pointer to mlx5_flow_rss_desc.
1011  * @param[in] action
1012  *   Action configuration.
1013  */
1014 static void
1015 flow_verbs_translate_action_queue(struct mlx5_flow_rss_desc *rss_desc,
1016                                   const struct rte_flow_action *action)
1017 {
1018         const struct rte_flow_action_queue *queue = action->conf;
1019
1020         rss_desc->queue[0] = queue->index;
1021         rss_desc->queue_num = 1;
1022 }
1023
1024 /**
1025  * Convert the @p action into a Verbs specification. This function assumes that
1026  * the input is valid and that there is space to insert the requested action
1027  * into the flow.
1028  *
1029  * @param[in] rss_desc
1030  *   Pointer to mlx5_flow_rss_desc.
1031  * @param[in] action
1032  *   Action configuration.
1033  */
1034 static void
1035 flow_verbs_translate_action_rss(struct mlx5_flow_rss_desc *rss_desc,
1036                                 const struct rte_flow_action *action)
1037 {
1038         const struct rte_flow_action_rss *rss = action->conf;
1039         const uint8_t *rss_key;
1040
1041         memcpy(rss_desc->queue, rss->queue, rss->queue_num * sizeof(uint16_t));
1042         rss_desc->queue_num = rss->queue_num;
1043         /* NULL RSS key indicates default RSS key. */
1044         rss_key = !rss->key ? rss_hash_default_key : rss->key;
1045         memcpy(rss_desc->key, rss_key, MLX5_RSS_HASH_KEY_LEN);
1046         /*
1047          * rss->level and rss.types should be set in advance when expanding
1048          * items for RSS.
1049          */
1050 }
1051
1052 /**
1053  * Convert the @p action into a Verbs specification. This function assumes that
1054  * the input is valid and that there is space to insert the requested action
1055  * into the flow.
1056  *
1057  * @param[in] dev_flow
1058  *   Pointer to mlx5_flow.
1059  * @param[in] action
1060  *   Action configuration.
1061  */
1062 static void
1063 flow_verbs_translate_action_flag
1064         (struct mlx5_flow *dev_flow,
1065          const struct rte_flow_action *action __rte_unused)
1066 {
1067         unsigned int size = sizeof(struct ibv_flow_spec_action_tag);
1068         struct ibv_flow_spec_action_tag tag = {
1069                 .type = IBV_FLOW_SPEC_ACTION_TAG,
1070                 .size = size,
1071                 .tag_id = mlx5_flow_mark_set(MLX5_FLOW_MARK_DEFAULT),
1072         };
1073
1074         flow_verbs_spec_add(&dev_flow->verbs, &tag, size);
1075 }
1076
1077 /**
1078  * Convert the @p action into a Verbs specification. This function assumes that
1079  * the input is valid and that there is space to insert the requested action
1080  * into the flow.
1081  *
1082  * @param[in] dev_flow
1083  *   Pointer to mlx5_flow.
1084  * @param[in] action
1085  *   Action configuration.
1086  */
1087 static void
1088 flow_verbs_translate_action_mark(struct mlx5_flow *dev_flow,
1089                                  const struct rte_flow_action *action)
1090 {
1091         const struct rte_flow_action_mark *mark = action->conf;
1092         unsigned int size = sizeof(struct ibv_flow_spec_action_tag);
1093         struct ibv_flow_spec_action_tag tag = {
1094                 .type = IBV_FLOW_SPEC_ACTION_TAG,
1095                 .size = size,
1096                 .tag_id = mlx5_flow_mark_set(mark->id),
1097         };
1098
1099         flow_verbs_spec_add(&dev_flow->verbs, &tag, size);
1100 }
1101
1102 /**
1103  * Convert the @p action into a Verbs specification. This function assumes that
1104  * the input is valid and that there is space to insert the requested action
1105  * into the flow.
1106  *
1107  * @param[in] dev
1108  *   Pointer to the Ethernet device structure.
1109  * @param[in] action
1110  *   Action configuration.
1111  * @param[in] dev_flow
1112  *   Pointer to mlx5_flow.
1113  * @param[out] error
1114  *   Pointer to error structure.
1115  *
1116  * @return
1117  *   0 On success else a negative errno value is returned and rte_errno is set.
1118  */
1119 static int
1120 flow_verbs_translate_action_count(struct mlx5_flow *dev_flow,
1121                                   const struct rte_flow_action *action,
1122                                   struct rte_eth_dev *dev,
1123                                   struct rte_flow_error *error)
1124 {
1125         const struct rte_flow_action_count *count = action->conf;
1126         struct rte_flow *flow = dev_flow->flow;
1127 #if defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42) || \
1128         defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45)
1129         struct mlx5_flow_counter_pool *pool;
1130         struct mlx5_flow_counter *cnt = NULL;
1131         unsigned int size = sizeof(struct ibv_flow_spec_counter_action);
1132         struct ibv_flow_spec_counter_action counter = {
1133                 .type = IBV_FLOW_SPEC_ACTION_COUNT,
1134                 .size = size,
1135         };
1136 #endif
1137
1138         if (!flow->counter) {
1139                 flow->counter = flow_verbs_counter_new(dev, count->id);
1140                 if (!flow->counter)
1141                         return rte_flow_error_set(error, rte_errno,
1142                                                   RTE_FLOW_ERROR_TYPE_ACTION,
1143                                                   action,
1144                                                   "cannot get counter"
1145                                                   " context.");
1146         }
1147 #if defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42)
1148         cnt = flow_verbs_counter_get_by_idx(dev, flow->counter, &pool);
1149         counter.counter_set_handle =
1150                 ((struct ibv_counter_set *)cnt->dcs_when_active)->handle;
1151         flow_verbs_spec_add(&dev_flow->verbs, &counter, size);
1152 #elif defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45)
1153         cnt = flow_verbs_counter_get_by_idx(dev, flow->counter, &pool);
1154         counter.counters = (struct ibv_counters *)cnt->dcs_when_active;
1155         flow_verbs_spec_add(&dev_flow->verbs, &counter, size);
1156 #endif
1157         return 0;
1158 }
1159
1160 /**
1161  * Internal validation function. For validating both actions and items.
1162  *
1163  * @param[in] dev
1164  *   Pointer to the Ethernet device structure.
1165  * @param[in] attr
1166  *   Pointer to the flow attributes.
1167  * @param[in] items
1168  *   Pointer to the list of items.
1169  * @param[in] actions
1170  *   Pointer to the list of actions.
1171  * @param[in] external
1172  *   This flow rule is created by request external to PMD.
1173  * @param[in] hairpin
1174  *   Number of hairpin TX actions, 0 means classic flow.
1175  * @param[out] error
1176  *   Pointer to the error structure.
1177  *
1178  * @return
1179  *   0 on success, a negative errno value otherwise and rte_errno is set.
1180  */
1181 static int
1182 flow_verbs_validate(struct rte_eth_dev *dev,
1183                     const struct rte_flow_attr *attr,
1184                     const struct rte_flow_item items[],
1185                     const struct rte_flow_action actions[],
1186                     bool external __rte_unused,
1187                     int hairpin __rte_unused,
1188                     struct rte_flow_error *error)
1189 {
1190         int ret;
1191         uint64_t action_flags = 0;
1192         uint64_t item_flags = 0;
1193         uint64_t last_item = 0;
1194         uint8_t next_protocol = 0xff;
1195         uint16_t ether_type = 0;
1196         bool is_empty_vlan = false;
1197         uint16_t udp_dport = 0;
1198
1199         if (items == NULL)
1200                 return -1;
1201         ret = mlx5_flow_validate_attributes(dev, attr, error);
1202         if (ret < 0)
1203                 return ret;
1204         for (; items->type != RTE_FLOW_ITEM_TYPE_END; items++) {
1205                 int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1206                 int ret = 0;
1207
1208                 switch (items->type) {
1209                 case RTE_FLOW_ITEM_TYPE_VOID:
1210                         break;
1211                 case RTE_FLOW_ITEM_TYPE_ETH:
1212                         ret = mlx5_flow_validate_item_eth(items, item_flags,
1213                                                           false, error);
1214                         if (ret < 0)
1215                                 return ret;
1216                         last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L2 :
1217                                              MLX5_FLOW_LAYER_OUTER_L2;
1218                         if (items->mask != NULL && items->spec != NULL) {
1219                                 ether_type =
1220                                         ((const struct rte_flow_item_eth *)
1221                                          items->spec)->type;
1222                                 ether_type &=
1223                                         ((const struct rte_flow_item_eth *)
1224                                          items->mask)->type;
1225                                 if (ether_type == RTE_BE16(RTE_ETHER_TYPE_VLAN))
1226                                         is_empty_vlan = true;
1227                                 ether_type = rte_be_to_cpu_16(ether_type);
1228                         } else {
1229                                 ether_type = 0;
1230                         }
1231                         break;
1232                 case RTE_FLOW_ITEM_TYPE_VLAN:
1233                         ret = mlx5_flow_validate_item_vlan(items, item_flags,
1234                                                            dev, error);
1235                         if (ret < 0)
1236                                 return ret;
1237                         last_item = tunnel ? (MLX5_FLOW_LAYER_INNER_L2 |
1238                                               MLX5_FLOW_LAYER_INNER_VLAN) :
1239                                              (MLX5_FLOW_LAYER_OUTER_L2 |
1240                                               MLX5_FLOW_LAYER_OUTER_VLAN);
1241                         if (items->mask != NULL && items->spec != NULL) {
1242                                 ether_type =
1243                                         ((const struct rte_flow_item_vlan *)
1244                                          items->spec)->inner_type;
1245                                 ether_type &=
1246                                         ((const struct rte_flow_item_vlan *)
1247                                          items->mask)->inner_type;
1248                                 ether_type = rte_be_to_cpu_16(ether_type);
1249                         } else {
1250                                 ether_type = 0;
1251                         }
1252                         is_empty_vlan = false;
1253                         break;
1254                 case RTE_FLOW_ITEM_TYPE_IPV4:
1255                         ret = mlx5_flow_validate_item_ipv4
1256                                                 (items, item_flags,
1257                                                  last_item, ether_type, NULL,
1258                                                  MLX5_ITEM_RANGE_NOT_ACCEPTED,
1259                                                  error);
1260                         if (ret < 0)
1261                                 return ret;
1262                         last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV4 :
1263                                              MLX5_FLOW_LAYER_OUTER_L3_IPV4;
1264                         if (items->mask != NULL &&
1265                             ((const struct rte_flow_item_ipv4 *)
1266                              items->mask)->hdr.next_proto_id) {
1267                                 next_protocol =
1268                                         ((const struct rte_flow_item_ipv4 *)
1269                                          (items->spec))->hdr.next_proto_id;
1270                                 next_protocol &=
1271                                         ((const struct rte_flow_item_ipv4 *)
1272                                          (items->mask))->hdr.next_proto_id;
1273                         } else {
1274                                 /* Reset for inner layer. */
1275                                 next_protocol = 0xff;
1276                         }
1277                         break;
1278                 case RTE_FLOW_ITEM_TYPE_IPV6:
1279                         ret = mlx5_flow_validate_item_ipv6(items, item_flags,
1280                                                            last_item,
1281                                                            ether_type, NULL,
1282                                                            error);
1283                         if (ret < 0)
1284                                 return ret;
1285                         last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV6 :
1286                                              MLX5_FLOW_LAYER_OUTER_L3_IPV6;
1287                         if (items->mask != NULL &&
1288                             ((const struct rte_flow_item_ipv6 *)
1289                              items->mask)->hdr.proto) {
1290                                 next_protocol =
1291                                         ((const struct rte_flow_item_ipv6 *)
1292                                          items->spec)->hdr.proto;
1293                                 next_protocol &=
1294                                         ((const struct rte_flow_item_ipv6 *)
1295                                          items->mask)->hdr.proto;
1296                         } else {
1297                                 /* Reset for inner layer. */
1298                                 next_protocol = 0xff;
1299                         }
1300                         break;
1301                 case RTE_FLOW_ITEM_TYPE_UDP:
1302                         ret = mlx5_flow_validate_item_udp(items, item_flags,
1303                                                           next_protocol,
1304                                                           error);
1305                         const struct rte_flow_item_udp *spec = items->spec;
1306                         const struct rte_flow_item_udp *mask = items->mask;
1307                         if (!mask)
1308                                 mask = &rte_flow_item_udp_mask;
1309                         if (spec != NULL)
1310                                 udp_dport = rte_be_to_cpu_16
1311                                                 (spec->hdr.dst_port &
1312                                                  mask->hdr.dst_port);
1313
1314                         if (ret < 0)
1315                                 return ret;
1316                         last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L4_UDP :
1317                                              MLX5_FLOW_LAYER_OUTER_L4_UDP;
1318                         break;
1319                 case RTE_FLOW_ITEM_TYPE_TCP:
1320                         ret = mlx5_flow_validate_item_tcp
1321                                                 (items, item_flags,
1322                                                  next_protocol,
1323                                                  &rte_flow_item_tcp_mask,
1324                                                  error);
1325                         if (ret < 0)
1326                                 return ret;
1327                         last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L4_TCP :
1328                                              MLX5_FLOW_LAYER_OUTER_L4_TCP;
1329                         break;
1330                 case RTE_FLOW_ITEM_TYPE_VXLAN:
1331                         ret = mlx5_flow_validate_item_vxlan(dev, udp_dport,
1332                                                             items, item_flags,
1333                                                             attr, error);
1334                         if (ret < 0)
1335                                 return ret;
1336                         last_item = MLX5_FLOW_LAYER_VXLAN;
1337                         break;
1338                 case RTE_FLOW_ITEM_TYPE_VXLAN_GPE:
1339                         ret = mlx5_flow_validate_item_vxlan_gpe(items,
1340                                                                 item_flags,
1341                                                                 dev, error);
1342                         if (ret < 0)
1343                                 return ret;
1344                         last_item = MLX5_FLOW_LAYER_VXLAN_GPE;
1345                         break;
1346                 case RTE_FLOW_ITEM_TYPE_GRE:
1347                         ret = mlx5_flow_validate_item_gre(items, item_flags,
1348                                                           next_protocol, error);
1349                         if (ret < 0)
1350                                 return ret;
1351                         last_item = MLX5_FLOW_LAYER_GRE;
1352                         break;
1353                 case RTE_FLOW_ITEM_TYPE_MPLS:
1354                         ret = mlx5_flow_validate_item_mpls(dev, items,
1355                                                            item_flags,
1356                                                            last_item, error);
1357                         if (ret < 0)
1358                                 return ret;
1359                         last_item = MLX5_FLOW_LAYER_MPLS;
1360                         break;
1361                 case RTE_FLOW_ITEM_TYPE_ICMP:
1362                 case RTE_FLOW_ITEM_TYPE_ICMP6:
1363                         return rte_flow_error_set(error, ENOTSUP,
1364                                                   RTE_FLOW_ERROR_TYPE_ITEM,
1365                                                   NULL, "ICMP/ICMP6 "
1366                                                   "item not supported");
1367                 default:
1368                         return rte_flow_error_set(error, ENOTSUP,
1369                                                   RTE_FLOW_ERROR_TYPE_ITEM,
1370                                                   NULL, "item not supported");
1371                 }
1372                 item_flags |= last_item;
1373         }
1374         if (is_empty_vlan)
1375                 return rte_flow_error_set(error, ENOTSUP,
1376                                                  RTE_FLOW_ERROR_TYPE_ITEM, NULL,
1377                     "VLAN matching without vid specification is not supported");
1378         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
1379                 switch (actions->type) {
1380                 case RTE_FLOW_ACTION_TYPE_VOID:
1381                         break;
1382                 case RTE_FLOW_ACTION_TYPE_FLAG:
1383                         ret = mlx5_flow_validate_action_flag(action_flags,
1384                                                              attr,
1385                                                              error);
1386                         if (ret < 0)
1387                                 return ret;
1388                         action_flags |= MLX5_FLOW_ACTION_FLAG;
1389                         break;
1390                 case RTE_FLOW_ACTION_TYPE_MARK:
1391                         ret = mlx5_flow_validate_action_mark(actions,
1392                                                              action_flags,
1393                                                              attr,
1394                                                              error);
1395                         if (ret < 0)
1396                                 return ret;
1397                         action_flags |= MLX5_FLOW_ACTION_MARK;
1398                         break;
1399                 case RTE_FLOW_ACTION_TYPE_DROP:
1400                         ret = mlx5_flow_validate_action_drop(action_flags,
1401                                                              attr,
1402                                                              error);
1403                         if (ret < 0)
1404                                 return ret;
1405                         action_flags |= MLX5_FLOW_ACTION_DROP;
1406                         break;
1407                 case RTE_FLOW_ACTION_TYPE_QUEUE:
1408                         ret = mlx5_flow_validate_action_queue(actions,
1409                                                               action_flags, dev,
1410                                                               attr,
1411                                                               error);
1412                         if (ret < 0)
1413                                 return ret;
1414                         action_flags |= MLX5_FLOW_ACTION_QUEUE;
1415                         break;
1416                 case RTE_FLOW_ACTION_TYPE_RSS:
1417                         ret = mlx5_flow_validate_action_rss(actions,
1418                                                             action_flags, dev,
1419                                                             attr, item_flags,
1420                                                             error);
1421                         if (ret < 0)
1422                                 return ret;
1423                         action_flags |= MLX5_FLOW_ACTION_RSS;
1424                         break;
1425                 case RTE_FLOW_ACTION_TYPE_COUNT:
1426                         ret = mlx5_flow_validate_action_count(dev, attr, error);
1427                         if (ret < 0)
1428                                 return ret;
1429                         action_flags |= MLX5_FLOW_ACTION_COUNT;
1430                         break;
1431                 default:
1432                         return rte_flow_error_set(error, ENOTSUP,
1433                                                   RTE_FLOW_ERROR_TYPE_ACTION,
1434                                                   actions,
1435                                                   "action not supported");
1436                 }
1437         }
1438         /*
1439          * Validate the drop action mutual exclusion with other actions.
1440          * Drop action is mutually-exclusive with any other action, except for
1441          * Count action.
1442          */
1443         if ((action_flags & MLX5_FLOW_ACTION_DROP) &&
1444             (action_flags & ~(MLX5_FLOW_ACTION_DROP | MLX5_FLOW_ACTION_COUNT)))
1445                 return rte_flow_error_set(error, EINVAL,
1446                                           RTE_FLOW_ERROR_TYPE_ACTION, NULL,
1447                                           "Drop action is mutually-exclusive "
1448                                           "with any other action, except for "
1449                                           "Count action");
1450         if (!(action_flags & MLX5_FLOW_FATE_ACTIONS))
1451                 return rte_flow_error_set(error, EINVAL,
1452                                           RTE_FLOW_ERROR_TYPE_ACTION, actions,
1453                                           "no fate action is found");
1454         return 0;
1455 }
1456
1457 /**
1458  * Calculate the required bytes that are needed for the action part of the verbs
1459  * flow.
1460  *
1461  * @param[in] actions
1462  *   Pointer to the list of actions.
1463  *
1464  * @return
1465  *   The size of the memory needed for all actions.
1466  */
1467 static int
1468 flow_verbs_get_actions_size(const struct rte_flow_action actions[])
1469 {
1470         int size = 0;
1471
1472         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
1473                 switch (actions->type) {
1474                 case RTE_FLOW_ACTION_TYPE_VOID:
1475                         break;
1476                 case RTE_FLOW_ACTION_TYPE_FLAG:
1477                         size += sizeof(struct ibv_flow_spec_action_tag);
1478                         break;
1479                 case RTE_FLOW_ACTION_TYPE_MARK:
1480                         size += sizeof(struct ibv_flow_spec_action_tag);
1481                         break;
1482                 case RTE_FLOW_ACTION_TYPE_DROP:
1483                         size += sizeof(struct ibv_flow_spec_action_drop);
1484                         break;
1485                 case RTE_FLOW_ACTION_TYPE_QUEUE:
1486                         break;
1487                 case RTE_FLOW_ACTION_TYPE_RSS:
1488                         break;
1489                 case RTE_FLOW_ACTION_TYPE_COUNT:
1490 #if defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42) || \
1491         defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45)
1492                         size += sizeof(struct ibv_flow_spec_counter_action);
1493 #endif
1494                         break;
1495                 default:
1496                         break;
1497                 }
1498         }
1499         return size;
1500 }
1501
1502 /**
1503  * Calculate the required bytes that are needed for the item part of the verbs
1504  * flow.
1505  *
1506  * @param[in] items
1507  *   Pointer to the list of items.
1508  *
1509  * @return
1510  *   The size of the memory needed for all items.
1511  */
1512 static int
1513 flow_verbs_get_items_size(const struct rte_flow_item items[])
1514 {
1515         int size = 0;
1516
1517         for (; items->type != RTE_FLOW_ITEM_TYPE_END; items++) {
1518                 switch (items->type) {
1519                 case RTE_FLOW_ITEM_TYPE_VOID:
1520                         break;
1521                 case RTE_FLOW_ITEM_TYPE_ETH:
1522                         size += sizeof(struct ibv_flow_spec_eth);
1523                         break;
1524                 case RTE_FLOW_ITEM_TYPE_VLAN:
1525                         size += sizeof(struct ibv_flow_spec_eth);
1526                         break;
1527                 case RTE_FLOW_ITEM_TYPE_IPV4:
1528                         size += sizeof(struct ibv_flow_spec_ipv4_ext);
1529                         break;
1530                 case RTE_FLOW_ITEM_TYPE_IPV6:
1531                         size += sizeof(struct ibv_flow_spec_ipv6);
1532                         break;
1533                 case RTE_FLOW_ITEM_TYPE_UDP:
1534                         size += sizeof(struct ibv_flow_spec_tcp_udp);
1535                         break;
1536                 case RTE_FLOW_ITEM_TYPE_TCP:
1537                         size += sizeof(struct ibv_flow_spec_tcp_udp);
1538                         break;
1539                 case RTE_FLOW_ITEM_TYPE_VXLAN:
1540                         size += sizeof(struct ibv_flow_spec_tunnel);
1541                         break;
1542                 case RTE_FLOW_ITEM_TYPE_VXLAN_GPE:
1543                         size += sizeof(struct ibv_flow_spec_tunnel);
1544                         break;
1545 #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT
1546                 case RTE_FLOW_ITEM_TYPE_GRE:
1547                         size += sizeof(struct ibv_flow_spec_gre);
1548                         break;
1549                 case RTE_FLOW_ITEM_TYPE_MPLS:
1550                         size += sizeof(struct ibv_flow_spec_mpls);
1551                         break;
1552 #else
1553                 case RTE_FLOW_ITEM_TYPE_GRE:
1554                         size += sizeof(struct ibv_flow_spec_tunnel);
1555                         break;
1556 #endif
1557                 default:
1558                         break;
1559                 }
1560         }
1561         return size;
1562 }
1563
1564 /**
1565  * Internal preparation function. Allocate mlx5_flow with the required size.
1566  * The required size is calculate based on the actions and items. This function
1567  * also returns the detected actions and items for later use.
1568  *
1569  * @param[in] dev
1570  *   Pointer to Ethernet device.
1571  * @param[in] attr
1572  *   Pointer to the flow attributes.
1573  * @param[in] items
1574  *   Pointer to the list of items.
1575  * @param[in] actions
1576  *   Pointer to the list of actions.
1577  * @param[out] error
1578  *   Pointer to the error structure.
1579  *
1580  * @return
1581  *   Pointer to mlx5_flow object on success, otherwise NULL and rte_errno
1582  *   is set.
1583  */
1584 static struct mlx5_flow *
1585 flow_verbs_prepare(struct rte_eth_dev *dev,
1586                    const struct rte_flow_attr *attr __rte_unused,
1587                    const struct rte_flow_item items[],
1588                    const struct rte_flow_action actions[],
1589                    struct rte_flow_error *error)
1590 {
1591         size_t size = 0;
1592         uint32_t handle_idx = 0;
1593         struct mlx5_flow *dev_flow;
1594         struct mlx5_flow_handle *dev_handle;
1595         struct mlx5_priv *priv = dev->data->dev_private;
1596         struct mlx5_flow_workspace *wks = mlx5_flow_get_thread_workspace();
1597
1598         MLX5_ASSERT(wks);
1599         size += flow_verbs_get_actions_size(actions);
1600         size += flow_verbs_get_items_size(items);
1601         if (size > MLX5_VERBS_MAX_SPEC_ACT_SIZE) {
1602                 rte_flow_error_set(error, E2BIG,
1603                                    RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
1604                                    "Verbs spec/action size too large");
1605                 return NULL;
1606         }
1607         /* In case of corrupting the memory. */
1608         if (wks->flow_idx >= MLX5_NUM_MAX_DEV_FLOWS) {
1609                 rte_flow_error_set(error, ENOSPC,
1610                                    RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
1611                                    "not free temporary device flow");
1612                 return NULL;
1613         }
1614         dev_handle = mlx5_ipool_zmalloc(priv->sh->ipool[MLX5_IPOOL_MLX5_FLOW],
1615                                    &handle_idx);
1616         if (!dev_handle) {
1617                 rte_flow_error_set(error, ENOMEM,
1618                                    RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
1619                                    "not enough memory to create flow handle");
1620                 return NULL;
1621         }
1622         MLX5_ASSERT(wks->flow_idx + 1 < RTE_DIM(wks->flows));
1623         dev_flow = &wks->flows[wks->flow_idx++];
1624         dev_flow->handle = dev_handle;
1625         dev_flow->handle_idx = handle_idx;
1626         /* Memcpy is used, only size needs to be cleared to 0. */
1627         dev_flow->verbs.size = 0;
1628         dev_flow->verbs.attr.num_of_specs = 0;
1629         dev_flow->ingress = attr->ingress;
1630         dev_flow->hash_fields = 0;
1631         /* Need to set transfer attribute: not supported in Verbs mode. */
1632         return dev_flow;
1633 }
1634
1635 /**
1636  * Fill the flow with verb spec.
1637  *
1638  * @param[in] dev
1639  *   Pointer to Ethernet device.
1640  * @param[in, out] dev_flow
1641  *   Pointer to the mlx5 flow.
1642  * @param[in] attr
1643  *   Pointer to the flow attributes.
1644  * @param[in] items
1645  *   Pointer to the list of items.
1646  * @param[in] actions
1647  *   Pointer to the list of actions.
1648  * @param[out] error
1649  *   Pointer to the error structure.
1650  *
1651  * @return
1652  *   0 on success, else a negative errno value otherwise and rte_errno is set.
1653  */
1654 static int
1655 flow_verbs_translate(struct rte_eth_dev *dev,
1656                      struct mlx5_flow *dev_flow,
1657                      const struct rte_flow_attr *attr,
1658                      const struct rte_flow_item items[],
1659                      const struct rte_flow_action actions[],
1660                      struct rte_flow_error *error)
1661 {
1662         uint64_t item_flags = 0;
1663         uint64_t action_flags = 0;
1664         uint64_t priority = attr->priority;
1665         uint32_t subpriority = 0;
1666         struct mlx5_priv *priv = dev->data->dev_private;
1667         struct mlx5_flow_workspace *wks = mlx5_flow_get_thread_workspace();
1668         struct mlx5_flow_rss_desc *rss_desc;
1669
1670         MLX5_ASSERT(wks);
1671         rss_desc = &wks->rss_desc;
1672         if (priority == MLX5_FLOW_LOWEST_PRIO_INDICATOR)
1673                 priority = priv->sh->flow_max_priority - 1;
1674         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
1675                 int ret;
1676
1677                 switch (actions->type) {
1678                 case RTE_FLOW_ACTION_TYPE_VOID:
1679                         break;
1680                 case RTE_FLOW_ACTION_TYPE_FLAG:
1681                         flow_verbs_translate_action_flag(dev_flow, actions);
1682                         action_flags |= MLX5_FLOW_ACTION_FLAG;
1683                         dev_flow->handle->mark = 1;
1684                         break;
1685                 case RTE_FLOW_ACTION_TYPE_MARK:
1686                         flow_verbs_translate_action_mark(dev_flow, actions);
1687                         action_flags |= MLX5_FLOW_ACTION_MARK;
1688                         dev_flow->handle->mark = 1;
1689                         break;
1690                 case RTE_FLOW_ACTION_TYPE_DROP:
1691                         flow_verbs_translate_action_drop(dev_flow, actions);
1692                         action_flags |= MLX5_FLOW_ACTION_DROP;
1693                         dev_flow->handle->fate_action = MLX5_FLOW_FATE_DROP;
1694                         break;
1695                 case RTE_FLOW_ACTION_TYPE_QUEUE:
1696                         flow_verbs_translate_action_queue(rss_desc, actions);
1697                         action_flags |= MLX5_FLOW_ACTION_QUEUE;
1698                         dev_flow->handle->fate_action = MLX5_FLOW_FATE_QUEUE;
1699                         break;
1700                 case RTE_FLOW_ACTION_TYPE_RSS:
1701                         flow_verbs_translate_action_rss(rss_desc, actions);
1702                         action_flags |= MLX5_FLOW_ACTION_RSS;
1703                         dev_flow->handle->fate_action = MLX5_FLOW_FATE_QUEUE;
1704                         break;
1705                 case RTE_FLOW_ACTION_TYPE_COUNT:
1706                         ret = flow_verbs_translate_action_count(dev_flow,
1707                                                                 actions,
1708                                                                 dev, error);
1709                         if (ret < 0)
1710                                 return ret;
1711                         action_flags |= MLX5_FLOW_ACTION_COUNT;
1712                         break;
1713                 default:
1714                         return rte_flow_error_set(error, ENOTSUP,
1715                                                   RTE_FLOW_ERROR_TYPE_ACTION,
1716                                                   actions,
1717                                                   "action not supported");
1718                 }
1719         }
1720         dev_flow->act_flags = action_flags;
1721         for (; items->type != RTE_FLOW_ITEM_TYPE_END; items++) {
1722                 int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1723
1724                 switch (items->type) {
1725                 case RTE_FLOW_ITEM_TYPE_VOID:
1726                         break;
1727                 case RTE_FLOW_ITEM_TYPE_ETH:
1728                         flow_verbs_translate_item_eth(dev_flow, items,
1729                                                       item_flags);
1730                         subpriority = MLX5_PRIORITY_MAP_L2;
1731                         item_flags |= tunnel ? MLX5_FLOW_LAYER_INNER_L2 :
1732                                                MLX5_FLOW_LAYER_OUTER_L2;
1733                         break;
1734                 case RTE_FLOW_ITEM_TYPE_VLAN:
1735                         flow_verbs_translate_item_vlan(dev_flow, items,
1736                                                        item_flags);
1737                         subpriority = MLX5_PRIORITY_MAP_L2;
1738                         item_flags |= tunnel ? (MLX5_FLOW_LAYER_INNER_L2 |
1739                                                 MLX5_FLOW_LAYER_INNER_VLAN) :
1740                                                (MLX5_FLOW_LAYER_OUTER_L2 |
1741                                                 MLX5_FLOW_LAYER_OUTER_VLAN);
1742                         break;
1743                 case RTE_FLOW_ITEM_TYPE_IPV4:
1744                         flow_verbs_translate_item_ipv4(dev_flow, items,
1745                                                        item_flags);
1746                         subpriority = MLX5_PRIORITY_MAP_L3;
1747                         dev_flow->hash_fields |=
1748                                 mlx5_flow_hashfields_adjust
1749                                         (rss_desc, tunnel,
1750                                          MLX5_IPV4_LAYER_TYPES,
1751                                          MLX5_IPV4_IBV_RX_HASH);
1752                         item_flags |= tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV4 :
1753                                                MLX5_FLOW_LAYER_OUTER_L3_IPV4;
1754                         break;
1755                 case RTE_FLOW_ITEM_TYPE_IPV6:
1756                         flow_verbs_translate_item_ipv6(dev_flow, items,
1757                                                        item_flags);
1758                         subpriority = MLX5_PRIORITY_MAP_L3;
1759                         dev_flow->hash_fields |=
1760                                 mlx5_flow_hashfields_adjust
1761                                         (rss_desc, tunnel,
1762                                          MLX5_IPV6_LAYER_TYPES,
1763                                          MLX5_IPV6_IBV_RX_HASH);
1764                         item_flags |= tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV6 :
1765                                                MLX5_FLOW_LAYER_OUTER_L3_IPV6;
1766                         break;
1767                 case RTE_FLOW_ITEM_TYPE_TCP:
1768                         flow_verbs_translate_item_tcp(dev_flow, items,
1769                                                       item_flags);
1770                         subpriority = MLX5_PRIORITY_MAP_L4;
1771                         if (dev_flow->hash_fields != 0)
1772                                 dev_flow->hash_fields |=
1773                                         mlx5_flow_hashfields_adjust
1774                                         (rss_desc, tunnel, RTE_ETH_RSS_TCP,
1775                                          (IBV_RX_HASH_SRC_PORT_TCP |
1776                                           IBV_RX_HASH_DST_PORT_TCP));
1777                         item_flags |= tunnel ? MLX5_FLOW_LAYER_INNER_L4_TCP :
1778                                                MLX5_FLOW_LAYER_OUTER_L4_TCP;
1779                         break;
1780                 case RTE_FLOW_ITEM_TYPE_UDP:
1781                         flow_verbs_translate_item_udp(dev_flow, items,
1782                                                       item_flags);
1783                         subpriority = MLX5_PRIORITY_MAP_L4;
1784                         if (dev_flow->hash_fields != 0)
1785                                 dev_flow->hash_fields |=
1786                                         mlx5_flow_hashfields_adjust
1787                                         (rss_desc, tunnel, RTE_ETH_RSS_UDP,
1788                                          (IBV_RX_HASH_SRC_PORT_UDP |
1789                                           IBV_RX_HASH_DST_PORT_UDP));
1790                         item_flags |= tunnel ? MLX5_FLOW_LAYER_INNER_L4_UDP :
1791                                                MLX5_FLOW_LAYER_OUTER_L4_UDP;
1792                         break;
1793                 case RTE_FLOW_ITEM_TYPE_VXLAN:
1794                         flow_verbs_translate_item_vxlan(dev_flow, items,
1795                                                         item_flags);
1796                         subpriority = MLX5_TUNNEL_PRIO_GET(rss_desc);
1797                         item_flags |= MLX5_FLOW_LAYER_VXLAN;
1798                         break;
1799                 case RTE_FLOW_ITEM_TYPE_VXLAN_GPE:
1800                         flow_verbs_translate_item_vxlan_gpe(dev_flow, items,
1801                                                             item_flags);
1802                         subpriority = MLX5_TUNNEL_PRIO_GET(rss_desc);
1803                         item_flags |= MLX5_FLOW_LAYER_VXLAN_GPE;
1804                         break;
1805                 case RTE_FLOW_ITEM_TYPE_GRE:
1806                         flow_verbs_translate_item_gre(dev_flow, items,
1807                                                       item_flags);
1808                         subpriority = MLX5_TUNNEL_PRIO_GET(rss_desc);
1809                         item_flags |= MLX5_FLOW_LAYER_GRE;
1810                         break;
1811                 case RTE_FLOW_ITEM_TYPE_MPLS:
1812                         flow_verbs_translate_item_mpls(dev_flow, items,
1813                                                        item_flags);
1814                         subpriority = MLX5_TUNNEL_PRIO_GET(rss_desc);
1815                         item_flags |= MLX5_FLOW_LAYER_MPLS;
1816                         break;
1817                 default:
1818                         return rte_flow_error_set(error, ENOTSUP,
1819                                                   RTE_FLOW_ERROR_TYPE_ITEM,
1820                                                   NULL, "item not supported");
1821                 }
1822         }
1823         dev_flow->handle->layers = item_flags;
1824         /* Other members of attr will be ignored. */
1825         dev_flow->verbs.attr.priority =
1826                 mlx5_flow_adjust_priority(dev, priority, subpriority);
1827         dev_flow->verbs.attr.port = (uint8_t)priv->dev_port;
1828         return 0;
1829 }
1830
1831 /**
1832  * Remove the flow from the NIC but keeps it in memory.
1833  *
1834  * @param[in] dev
1835  *   Pointer to the Ethernet device structure.
1836  * @param[in, out] flow
1837  *   Pointer to flow structure.
1838  */
1839 static void
1840 flow_verbs_remove(struct rte_eth_dev *dev, struct rte_flow *flow)
1841 {
1842         struct mlx5_priv *priv = dev->data->dev_private;
1843         struct mlx5_flow_handle *handle;
1844         uint32_t handle_idx;
1845
1846         if (!flow)
1847                 return;
1848         SILIST_FOREACH(priv->sh->ipool[MLX5_IPOOL_MLX5_FLOW], flow->dev_handles,
1849                        handle_idx, handle, next) {
1850                 if (handle->drv_flow) {
1851                         claim_zero(mlx5_glue->destroy_flow(handle->drv_flow));
1852                         handle->drv_flow = NULL;
1853                 }
1854                 /* hrxq is union, don't touch it only the flag is set. */
1855                 if (handle->rix_hrxq &&
1856                     handle->fate_action == MLX5_FLOW_FATE_QUEUE) {
1857                         mlx5_hrxq_release(dev, handle->rix_hrxq);
1858                         handle->rix_hrxq = 0;
1859                 }
1860                 if (handle->vf_vlan.tag && handle->vf_vlan.created)
1861                         mlx5_vlan_vmwa_release(dev, &handle->vf_vlan);
1862         }
1863 }
1864
1865 /**
1866  * Remove the flow from the NIC and the memory.
1867  *
1868  * @param[in] dev
1869  *   Pointer to the Ethernet device structure.
1870  * @param[in, out] flow
1871  *   Pointer to flow structure.
1872  */
1873 static void
1874 flow_verbs_destroy(struct rte_eth_dev *dev, struct rte_flow *flow)
1875 {
1876         struct mlx5_priv *priv = dev->data->dev_private;
1877         struct mlx5_flow_handle *handle;
1878
1879         if (!flow)
1880                 return;
1881         flow_verbs_remove(dev, flow);
1882         while (flow->dev_handles) {
1883                 uint32_t tmp_idx = flow->dev_handles;
1884
1885                 handle = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_MLX5_FLOW],
1886                                    tmp_idx);
1887                 if (!handle)
1888                         return;
1889                 flow->dev_handles = handle->next.next;
1890                 mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_MLX5_FLOW],
1891                            tmp_idx);
1892         }
1893         if (flow->counter) {
1894                 flow_verbs_counter_release(dev, flow->counter);
1895                 flow->counter = 0;
1896         }
1897 }
1898
1899 /**
1900  * Apply the flow to the NIC.
1901  *
1902  * @param[in] dev
1903  *   Pointer to the Ethernet device structure.
1904  * @param[in, out] flow
1905  *   Pointer to flow structure.
1906  * @param[out] error
1907  *   Pointer to error structure.
1908  *
1909  * @return
1910  *   0 on success, a negative errno value otherwise and rte_errno is set.
1911  */
1912 static int
1913 flow_verbs_apply(struct rte_eth_dev *dev, struct rte_flow *flow,
1914                  struct rte_flow_error *error)
1915 {
1916         struct mlx5_priv *priv = dev->data->dev_private;
1917         struct mlx5_flow_handle *handle;
1918         struct mlx5_flow *dev_flow;
1919         struct mlx5_hrxq *hrxq;
1920         uint32_t dev_handles;
1921         int err;
1922         int idx;
1923         struct mlx5_flow_workspace *wks = mlx5_flow_get_thread_workspace();
1924
1925         MLX5_ASSERT(wks);
1926         for (idx = wks->flow_idx - 1; idx >= 0; idx--) {
1927                 dev_flow = &wks->flows[idx];
1928                 handle = dev_flow->handle;
1929                 if (handle->fate_action == MLX5_FLOW_FATE_DROP) {
1930                         MLX5_ASSERT(priv->drop_queue.hrxq);
1931                         hrxq = priv->drop_queue.hrxq;
1932                 } else {
1933                         uint32_t hrxq_idx;
1934                         struct mlx5_flow_rss_desc *rss_desc = &wks->rss_desc;
1935
1936                         MLX5_ASSERT(rss_desc->queue_num);
1937                         rss_desc->key_len = MLX5_RSS_HASH_KEY_LEN;
1938                         rss_desc->hash_fields = dev_flow->hash_fields;
1939                         rss_desc->tunnel = !!(handle->layers &
1940                                               MLX5_FLOW_LAYER_TUNNEL);
1941                         rss_desc->shared_rss = 0;
1942                         hrxq_idx = mlx5_hrxq_get(dev, rss_desc);
1943                         hrxq = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_HRXQ],
1944                                               hrxq_idx);
1945                         if (!hrxq) {
1946                                 rte_flow_error_set
1947                                         (error, rte_errno,
1948                                          RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
1949                                          "cannot get hash queue");
1950                                 goto error;
1951                         }
1952                         handle->rix_hrxq = hrxq_idx;
1953                 }
1954                 MLX5_ASSERT(hrxq);
1955                 handle->drv_flow = mlx5_glue->create_flow
1956                                         (hrxq->qp, &dev_flow->verbs.attr);
1957                 if (!handle->drv_flow) {
1958                         rte_flow_error_set(error, errno,
1959                                            RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1960                                            NULL,
1961                                            "hardware refuses to create flow");
1962                         goto error;
1963                 }
1964                 if (priv->vmwa_context &&
1965                     handle->vf_vlan.tag && !handle->vf_vlan.created) {
1966                         /*
1967                          * The rule contains the VLAN pattern.
1968                          * For VF we are going to create VLAN
1969                          * interface to make hypervisor set correct
1970                          * e-Switch vport context.
1971                          */
1972                         mlx5_vlan_vmwa_acquire(dev, &handle->vf_vlan);
1973                 }
1974         }
1975         return 0;
1976 error:
1977         err = rte_errno; /* Save rte_errno before cleanup. */
1978         SILIST_FOREACH(priv->sh->ipool[MLX5_IPOOL_MLX5_FLOW], flow->dev_handles,
1979                        dev_handles, handle, next) {
1980                 /* hrxq is union, don't touch it only the flag is set. */
1981                 if (handle->rix_hrxq &&
1982                     handle->fate_action == MLX5_FLOW_FATE_QUEUE) {
1983                         mlx5_hrxq_release(dev, handle->rix_hrxq);
1984                         handle->rix_hrxq = 0;
1985                 }
1986                 if (handle->vf_vlan.tag && handle->vf_vlan.created)
1987                         mlx5_vlan_vmwa_release(dev, &handle->vf_vlan);
1988         }
1989         rte_errno = err; /* Restore rte_errno. */
1990         return -rte_errno;
1991 }
1992
1993 /**
1994  * Query a flow.
1995  *
1996  * @see rte_flow_query()
1997  * @see rte_flow_ops
1998  */
1999 static int
2000 flow_verbs_query(struct rte_eth_dev *dev,
2001                  struct rte_flow *flow,
2002                  const struct rte_flow_action *actions,
2003                  void *data,
2004                  struct rte_flow_error *error)
2005 {
2006         int ret = -EINVAL;
2007
2008         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
2009                 switch (actions->type) {
2010                 case RTE_FLOW_ACTION_TYPE_VOID:
2011                         break;
2012                 case RTE_FLOW_ACTION_TYPE_COUNT:
2013                         ret = flow_verbs_counter_query(dev, flow, data, error);
2014                         break;
2015                 default:
2016                         return rte_flow_error_set(error, ENOTSUP,
2017                                                   RTE_FLOW_ERROR_TYPE_ACTION,
2018                                                   actions,
2019                                                   "action not supported");
2020                 }
2021         }
2022         return ret;
2023 }
2024
2025 static int
2026 flow_verbs_sync_domain(struct rte_eth_dev *dev, uint32_t domains,
2027                        uint32_t flags)
2028 {
2029         RTE_SET_USED(dev);
2030         RTE_SET_USED(domains);
2031         RTE_SET_USED(flags);
2032
2033         return 0;
2034 }
2035
2036 const struct mlx5_flow_driver_ops mlx5_flow_verbs_drv_ops = {
2037         .validate = flow_verbs_validate,
2038         .prepare = flow_verbs_prepare,
2039         .translate = flow_verbs_translate,
2040         .apply = flow_verbs_apply,
2041         .remove = flow_verbs_remove,
2042         .destroy = flow_verbs_destroy,
2043         .query = flow_verbs_query,
2044         .sync_domain = flow_verbs_sync_domain,
2045         .discover_priorities = flow_verbs_discover_priorities,
2046 };