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 /* Verbs header. */
  12 /* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */
  13 #ifdef PEDANTIC
  14 #pragma GCC diagnostic ignored "-Wpedantic"
  15 #endif
  16 #include <infiniband/verbs.h>
  17 #ifdef PEDANTIC
  18 #pragma GCC diagnostic error "-Wpedantic"
  19 #endif
  20
  21 #include <rte_common.h>
  22 #include <rte_ether.h>
  23 #include <rte_ethdev_driver.h>
  24 #include <rte_flow.h>
  25 #include <rte_flow_driver.h>
  26 #include <rte_malloc.h>
  27 #include <rte_ip.h>
  28
  29 #include <mlx5_glue.h>
  30 #include <mlx5_prm.h>
  31
  32 #include "mlx5_defs.h"
  33 #include "mlx5.h"
  34 #include "mlx5_flow.h"
  35 #include "mlx5_rxtx.h"
  36
  37 #define VERBS_SPEC_INNER(item_flags) \
  38         (!!((item_flags) & MLX5_FLOW_LAYER_TUNNEL) ? IBV_FLOW_SPEC_INNER : 0)
  39
  40 /**
  41  * Get Verbs flow counter by index.
  42  *
  43  * @param[in] dev
  44  *   Pointer to the Ethernet device structure.
  45  * @param[in] idx
  46  *   mlx5 flow counter index in the container.
  47  * @param[out] ppool
  48  *   mlx5 flow counter pool in the container,
  49  *
  50  * @return
  51  *   A pointer to the counter, NULL otherwise.
  52  */
  53 static struct mlx5_flow_counter *
  54 flow_verbs_counter_get_by_idx(struct rte_eth_dev *dev,
  55                               uint32_t idx,
  56                               struct mlx5_flow_counter_pool **ppool)
  57 {
  58         struct mlx5_priv *priv = dev->data->dev_private;
  59         struct mlx5_pools_container *cont = MLX5_CNT_CONTAINER(priv->sh, 0, 0);
  60         struct mlx5_flow_counter_pool *pool;
  61
  62         idx--;
  63         pool = cont->pools[idx / MLX5_COUNTERS_PER_POOL];
  64         MLX5_ASSERT(pool);
  65         if (ppool)
  66                 *ppool = pool;
  67         return MLX5_POOL_GET_CNT(pool, idx % MLX5_COUNTERS_PER_POOL);
  68 }
  69
  70 /**
  71  * Create Verbs flow counter with Verbs library.
  72  *
  73  * @param[in] dev
  74  *   Pointer to the Ethernet device structure.
  75  * @param[in, out] counter
  76  *   mlx5 flow counter object, contains the counter id,
  77  *   handle of created Verbs flow counter is returned
  78  *   in cs field (if counters are supported).
  79  *
  80  * @return
  81  *   0 On success else a negative errno value is returned
  82  *   and rte_errno is set.
  83  */
  84 static int
  85 flow_verbs_counter_create(struct rte_eth_dev *dev,
  86                           struct mlx5_flow_counter_ext *counter)
  87 {
  88 #if defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42)
  89         struct mlx5_priv *priv = dev->data->dev_private;
  90         struct ibv_context *ctx = priv->sh->ctx;
  91         struct ibv_counter_set_init_attr init = {
  92                          .counter_set_id = counter->id};
  93
  94         counter->cs = mlx5_glue->create_counter_set(ctx, &init);
  95         if (!counter->cs) {
  96                 rte_errno = ENOTSUP;
  97                 return -ENOTSUP;
  98         }
  99         return 0;
 100 #elif defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45)
 101         struct mlx5_priv *priv = dev->data->dev_private;
 102         struct ibv_context *ctx = priv->sh->ctx;
 103         struct ibv_counters_init_attr init = {0};
 104         struct ibv_counter_attach_attr attach;
 105         int ret;
 106
 107         memset(&attach, 0, sizeof(attach));
 108         counter->cs = mlx5_glue->create_counters(ctx, &init);
 109         if (!counter->cs) {
 110                 rte_errno = ENOTSUP;
 111                 return -ENOTSUP;
 112         }
 113         attach.counter_desc = IBV_COUNTER_PACKETS;
 114         attach.index = 0;
 115         ret = mlx5_glue->attach_counters(counter->cs, &attach, NULL);
 116         if (!ret) {
 117                 attach.counter_desc = IBV_COUNTER_BYTES;
 118                 attach.index = 1;
 119                 ret = mlx5_glue->attach_counters
 120                                         (counter->cs, &attach, NULL);
 121         }
 122         if (ret) {
 123                 claim_zero(mlx5_glue->destroy_counters(counter->cs));
 124                 counter->cs = NULL;
 125                 rte_errno = ret;
 126                 return -ret;
 127         }
 128         return 0;
 129 #else
 130         (void)dev;
 131         (void)counter;
 132         rte_errno = ENOTSUP;
 133         return -ENOTSUP;
 134 #endif
 135 }
 136
 137 /**
 138  * Get a flow counter.
 139  *
 140  * @param[in] dev
 141  *   Pointer to the Ethernet device structure.
 142  * @param[in] shared
 143  *   Indicate if this counter is shared with other flows.
 144  * @param[in] id
 145  *   Counter identifier.
 146  *
 147  * @return
 148  *   Index to the counter, 0 otherwise and rte_errno is set.
 149  */
 150 static uint32_t
 151 flow_verbs_counter_new(struct rte_eth_dev *dev, uint32_t shared, uint32_t id)
 152 {
 153         struct mlx5_priv *priv = dev->data->dev_private;
 154         struct mlx5_pools_container *cont = MLX5_CNT_CONTAINER(priv->sh, 0, 0);
 155         struct mlx5_flow_counter_pool *pool = NULL;
 156         struct mlx5_flow_counter_ext *cnt_ext = NULL;
 157         struct mlx5_flow_counter *cnt = NULL;
 158         uint32_t n_valid = rte_atomic16_read(&cont->n_valid);
 159         uint32_t pool_idx;
 160         uint32_t i;
 161         int ret;
 162
 163         if (shared) {
 164                 for (pool_idx = 0; pool_idx < n_valid; ++pool_idx) {
 165                         pool = cont->pools[pool_idx];
 166                         for (i = 0; i < MLX5_COUNTERS_PER_POOL; ++i) {
 167                                 cnt_ext = MLX5_GET_POOL_CNT_EXT(pool, i);
 168                                 if (cnt_ext->shared && cnt_ext->id == id) {
 169                                         cnt_ext->ref_cnt++;
 170                                         return MLX5_MAKE_CNT_IDX(pool_idx, i);
 171                                 }
 172                         }
 173                 }
 174         }
 175         for (pool_idx = 0; pool_idx < n_valid; ++pool_idx) {
 176                 pool = cont->pools[pool_idx];
 177                 if (!pool)
 178                         continue;
 179                 cnt = TAILQ_FIRST(&pool->counters);
 180                 if (cnt)
 181                         break;
 182         }
 183         if (!cnt) {
 184                 struct mlx5_flow_counter_pool **pools;
 185                 uint32_t size;
 186
 187                 if (n_valid == cont->n) {
 188                         /* Resize the container pool array. */
 189                         size = sizeof(struct mlx5_flow_counter_pool *) *
 190                                      (n_valid + MLX5_CNT_CONTAINER_RESIZE);
 191                         pools = rte_zmalloc(__func__, size, 0);
 192                         if (!pools)
 193                                 return 0;
 194                         if (n_valid) {
 195                                 memcpy(pools, cont->pools,
 196                                        sizeof(struct mlx5_flow_counter_pool *) *
 197                                        n_valid);
 198                                 rte_free(cont->pools);
 199                         }
 200                         cont->pools = pools;
 201                         cont->n += MLX5_CNT_CONTAINER_RESIZE;
 202                 }
 203                 /* Allocate memory for new pool*/
 204                 size = sizeof(*pool) + (sizeof(*cnt_ext) + sizeof(*cnt)) *
 205                        MLX5_COUNTERS_PER_POOL;
 206                 pool = rte_calloc(__func__, 1, size, 0);
 207                 if (!pool)
 208                         return 0;
 209                 pool->type |= CNT_POOL_TYPE_EXT;
 210                 for (i = 0; i < MLX5_COUNTERS_PER_POOL; ++i) {
 211                         cnt = MLX5_POOL_GET_CNT(pool, i);
 212                         TAILQ_INSERT_HEAD(&pool->counters, cnt, next);
 213                 }
 214                 cnt = MLX5_POOL_GET_CNT(pool, 0);
 215                 cont->pools[n_valid] = pool;
 216                 pool_idx = n_valid;
 217                 rte_atomic16_add(&cont->n_valid, 1);
 218                 TAILQ_INSERT_HEAD(&cont->pool_list, pool, next);
 219         }
 220         i = MLX5_CNT_ARRAY_IDX(pool, cnt);
 221         cnt_ext = MLX5_GET_POOL_CNT_EXT(pool, i);
 222         cnt_ext->id = id;
 223         cnt_ext->shared = shared;
 224         cnt_ext->ref_cnt = 1;
 225         cnt->hits = 0;
 226         cnt->bytes = 0;
 227         /* Create counter with Verbs. */
 228         ret = flow_verbs_counter_create(dev, cnt_ext);
 229         if (!ret) {
 230                 TAILQ_REMOVE(&pool->counters, cnt, next);
 231                 return MLX5_MAKE_CNT_IDX(pool_idx, i);
 232         }
 233         /* Some error occurred in Verbs library. */
 234         rte_errno = -ret;
 235         return 0;
 236 }
 237
 238 /**
 239  * Release a flow counter.
 240  *
 241  * @param[in] dev
 242  *   Pointer to the Ethernet device structure.
 243  * @param[in] counter
 244  *   Index to the counter handler.
 245  */
 246 static void
 247 flow_verbs_counter_release(struct rte_eth_dev *dev, uint32_t counter)
 248 {
 249         struct mlx5_flow_counter_pool *pool;
 250         struct mlx5_flow_counter *cnt;
 251         struct mlx5_flow_counter_ext *cnt_ext;
 252
 253         cnt = flow_verbs_counter_get_by_idx(dev, counter,
 254                                             &pool);
 255         cnt_ext = MLX5_CNT_TO_CNT_EXT(pool, cnt);
 256         if (--cnt_ext->ref_cnt == 0) {
 257 #if defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42)
 258                 claim_zero(mlx5_glue->destroy_counter_set(cnt_ext->cs));
 259                 cnt_ext->cs = NULL;
 260 #elif defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45)
 261                 claim_zero(mlx5_glue->destroy_counters(cnt_ext->cs));
 262                 cnt_ext->cs = NULL;
 263 #endif
 264                 TAILQ_INSERT_HEAD(&pool->counters, cnt, next);
 265         }
 266 }
 267
 268 /**
 269  * Query a flow counter via Verbs library call.
 270  *
 271  * @see rte_flow_query()
 272  * @see rte_flow_ops
 273  */
 274 static int
 275 flow_verbs_counter_query(struct rte_eth_dev *dev __rte_unused,
 276                          struct rte_flow *flow, void *data,
 277                          struct rte_flow_error *error)
 278 {
 279 #if defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42) || \
 280         defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45)
 281         if (flow->counter) {
 282                 struct mlx5_flow_counter_pool *pool;
 283                 struct mlx5_flow_counter *cnt = flow_verbs_counter_get_by_idx
 284                                                 (dev, flow->counter, &pool);
 285                 struct mlx5_flow_counter_ext *cnt_ext = MLX5_CNT_TO_CNT_EXT
 286                                                 (pool, cnt);
 287                 struct rte_flow_query_count *qc = data;
 288                 uint64_t counters[2] = {0, 0};
 289 #if defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42)
 290                 struct ibv_query_counter_set_attr query_cs_attr = {
 291                         .cs = cnt_ext->cs,
 292                         .query_flags = IBV_COUNTER_SET_FORCE_UPDATE,
 293                 };
 294                 struct ibv_counter_set_data query_out = {
 295                         .out = counters,
 296                         .outlen = 2 * sizeof(uint64_t),
 297                 };
 298                 int err = mlx5_glue->query_counter_set(&query_cs_attr,
 299                                                        &query_out);
 300 #elif defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45)
 301                 int err = mlx5_glue->query_counters
 302                                (cnt_ext->cs, counters,
 303                                 RTE_DIM(counters),
 304                                 IBV_READ_COUNTERS_ATTR_PREFER_CACHED);
 305 #endif
 306                 if (err)
 307                         return rte_flow_error_set
 308                                 (error, err,
 309                                  RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 310                                  NULL,
 311                                  "cannot read counter");
 312                 qc->hits_set = 1;
 313                 qc->bytes_set = 1;
 314                 qc->hits = counters[0] - cnt->hits;
 315                 qc->bytes = counters[1] - cnt->bytes;
 316                 if (qc->reset) {
 317                         cnt->hits = counters[0];
 318                         cnt->bytes = counters[1];
 319                 }
 320                 return 0;
 321         }
 322         return rte_flow_error_set(error, EINVAL,
 323                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 324                                   NULL,
 325                                   "flow does not have counter");
 326 #else
 327         (void)flow;
 328         (void)data;
 329         return rte_flow_error_set(error, ENOTSUP,
 330                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 331                                   NULL,
 332                                   "counters are not available");
 333 #endif
 334 }
 335
 336 /**
 337  * Add a verbs item specification into @p verbs.
 338  *
 339  * @param[out] verbs
 340  *   Pointer to verbs structure.
 341  * @param[in] src
 342  *   Create specification.
 343  * @param[in] size
 344  *   Size in bytes of the specification to copy.
 345  */
 346 static void
 347 flow_verbs_spec_add(struct mlx5_flow_verbs_workspace *verbs,
 348                     void *src, unsigned int size)
 349 {
 350         void *dst;
 351
 352         if (!verbs)
 353                 return;
 354         MLX5_ASSERT(verbs->specs);
 355         dst = (void *)(verbs->specs + verbs->size);
 356         memcpy(dst, src, size);
 357         ++verbs->attr.num_of_specs;
 358         verbs->size += size;
 359 }
 360
 361 /**
 362  * Convert the @p item into a Verbs specification. This function assumes that
 363  * the input is valid and that there is space to insert the requested item
 364  * into the flow.
 365  *
 366  * @param[in, out] dev_flow
 367  *   Pointer to dev_flow structure.
 368  * @param[in] item
 369  *   Item specification.
 370  * @param[in] item_flags
 371  *   Parsed item flags.
 372  */
 373 static void
 374 flow_verbs_translate_item_eth(struct mlx5_flow *dev_flow,
 375                               const struct rte_flow_item *item,
 376                               uint64_t item_flags)
 377 {
 378         const struct rte_flow_item_eth *spec = item->spec;
 379         const struct rte_flow_item_eth *mask = item->mask;
 380         const unsigned int size = sizeof(struct ibv_flow_spec_eth);
 381         struct ibv_flow_spec_eth eth = {
 382                 .type = IBV_FLOW_SPEC_ETH | VERBS_SPEC_INNER(item_flags),
 383                 .size = size,
 384         };
 385
 386         if (!mask)
 387                 mask = &rte_flow_item_eth_mask;
 388         if (spec) {
 389                 unsigned int i;
 390
 391                 memcpy(&eth.val.dst_mac, spec->dst.addr_bytes,
 392                         RTE_ETHER_ADDR_LEN);
 393                 memcpy(&eth.val.src_mac, spec->src.addr_bytes,
 394                         RTE_ETHER_ADDR_LEN);
 395                 eth.val.ether_type = spec->type;
 396                 memcpy(&eth.mask.dst_mac, mask->dst.addr_bytes,
 397                         RTE_ETHER_ADDR_LEN);
 398                 memcpy(&eth.mask.src_mac, mask->src.addr_bytes,
 399                         RTE_ETHER_ADDR_LEN);
 400                 eth.mask.ether_type = mask->type;
 401                 /* Remove unwanted bits from values. */
 402                 for (i = 0; i < RTE_ETHER_ADDR_LEN; ++i) {
 403                         eth.val.dst_mac[i] &= eth.mask.dst_mac[i];
 404                         eth.val.src_mac[i] &= eth.mask.src_mac[i];
 405                 }
 406                 eth.val.ether_type &= eth.mask.ether_type;
 407         }
 408         flow_verbs_spec_add(&dev_flow->verbs, &eth, size);
 409 }
 410
 411 /**
 412  * Update the VLAN tag in the Verbs Ethernet specification.
 413  * This function assumes that the input is valid and there is space to add
 414  * the requested item.
 415  *
 416  * @param[in, out] attr
 417  *   Pointer to Verbs attributes structure.
 418  * @param[in] eth
 419  *   Verbs structure containing the VLAN information to copy.
 420  */
 421 static void
 422 flow_verbs_item_vlan_update(struct ibv_flow_attr *attr,
 423                             struct ibv_flow_spec_eth *eth)
 424 {
 425         unsigned int i;
 426         const enum ibv_flow_spec_type search = eth->type;
 427         struct ibv_spec_header *hdr = (struct ibv_spec_header *)
 428                 ((uint8_t *)attr + sizeof(struct ibv_flow_attr));
 429
 430         for (i = 0; i != attr->num_of_specs; ++i) {
 431                 if (hdr->type == search) {
 432                         struct ibv_flow_spec_eth *e =
 433                                 (struct ibv_flow_spec_eth *)hdr;
 434
 435                         e->val.vlan_tag = eth->val.vlan_tag;
 436                         e->mask.vlan_tag = eth->mask.vlan_tag;
 437                         e->val.ether_type = eth->val.ether_type;
 438                         e->mask.ether_type = eth->mask.ether_type;
 439                         break;
 440                 }
 441                 hdr = (struct ibv_spec_header *)((uint8_t *)hdr + hdr->size);
 442         }
 443 }
 444
 445 /**
 446  * Convert the @p item into a Verbs specification. This function assumes that
 447  * the input is valid and that there is space to insert the requested item
 448  * into the flow.
 449  *
 450  * @param[in, out] dev_flow
 451  *   Pointer to dev_flow structure.
 452  * @param[in] item
 453  *   Item specification.
 454  * @param[in] item_flags
 455  *   Parsed item flags.
 456  */
 457 static void
 458 flow_verbs_translate_item_vlan(struct mlx5_flow *dev_flow,
 459                                const struct rte_flow_item *item,
 460                                uint64_t item_flags)
 461 {
 462         const struct rte_flow_item_vlan *spec = item->spec;
 463         const struct rte_flow_item_vlan *mask = item->mask;
 464         unsigned int size = sizeof(struct ibv_flow_spec_eth);
 465         const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
 466         struct ibv_flow_spec_eth eth = {
 467                 .type = IBV_FLOW_SPEC_ETH | VERBS_SPEC_INNER(item_flags),
 468                 .size = size,
 469         };
 470         const uint32_t l2m = tunnel ? MLX5_FLOW_LAYER_INNER_L2 :
 471                                       MLX5_FLOW_LAYER_OUTER_L2;
 472
 473         if (!mask)
 474                 mask = &rte_flow_item_vlan_mask;
 475         if (spec) {
 476                 eth.val.vlan_tag = spec->tci;
 477                 eth.mask.vlan_tag = mask->tci;
 478                 eth.val.vlan_tag &= eth.mask.vlan_tag;
 479                 eth.val.ether_type = spec->inner_type;
 480                 eth.mask.ether_type = mask->inner_type;
 481                 eth.val.ether_type &= eth.mask.ether_type;
 482         }
 483         if (!(item_flags & l2m))
 484                 flow_verbs_spec_add(&dev_flow->verbs, &eth, size);
 485         else
 486                 flow_verbs_item_vlan_update(&dev_flow->verbs.attr, &eth);
 487         if (!tunnel)
 488                 dev_flow->handle->vf_vlan.tag =
 489                         rte_be_to_cpu_16(spec->tci) & 0x0fff;
 490 }
 491
 492 /**
 493  * Convert the @p item into a Verbs specification. This function assumes that
 494  * the input is valid and that there is space to insert the requested item
 495  * into the flow.
 496  *
 497  * @param[in, out] dev_flow
 498  *   Pointer to dev_flow structure.
 499  * @param[in] item
 500  *   Item specification.
 501  * @param[in] item_flags
 502  *   Parsed item flags.
 503  */
 504 static void
 505 flow_verbs_translate_item_ipv4(struct mlx5_flow *dev_flow,
 506                                const struct rte_flow_item *item,
 507                                uint64_t item_flags)
 508 {
 509         const struct rte_flow_item_ipv4 *spec = item->spec;
 510         const struct rte_flow_item_ipv4 *mask = item->mask;
 511         unsigned int size = sizeof(struct ibv_flow_spec_ipv4_ext);
 512         struct ibv_flow_spec_ipv4_ext ipv4 = {
 513                 .type = IBV_FLOW_SPEC_IPV4_EXT | VERBS_SPEC_INNER(item_flags),
 514                 .size = size,
 515         };
 516
 517         if (!mask)
 518                 mask = &rte_flow_item_ipv4_mask;
 519         if (spec) {
 520                 ipv4.val = (struct ibv_flow_ipv4_ext_filter){
 521                         .src_ip = spec->hdr.src_addr,
 522                         .dst_ip = spec->hdr.dst_addr,
 523                         .proto = spec->hdr.next_proto_id,
 524                         .tos = spec->hdr.type_of_service,
 525                 };
 526                 ipv4.mask = (struct ibv_flow_ipv4_ext_filter){
 527                         .src_ip = mask->hdr.src_addr,
 528                         .dst_ip = mask->hdr.dst_addr,
 529                         .proto = mask->hdr.next_proto_id,
 530                         .tos = mask->hdr.type_of_service,
 531                 };
 532                 /* Remove unwanted bits from values. */
 533                 ipv4.val.src_ip &= ipv4.mask.src_ip;
 534                 ipv4.val.dst_ip &= ipv4.mask.dst_ip;
 535                 ipv4.val.proto &= ipv4.mask.proto;
 536                 ipv4.val.tos &= ipv4.mask.tos;
 537         }
 538         flow_verbs_spec_add(&dev_flow->verbs, &ipv4, size);
 539 }
 540
 541 /**
 542  * Convert the @p item into a Verbs specification. This function assumes that
 543  * the input is valid and that there is space to insert the requested item
 544  * into the flow.
 545  *
 546  * @param[in, out] dev_flow
 547  *   Pointer to dev_flow structure.
 548  * @param[in] item
 549  *   Item specification.
 550  * @param[in] item_flags
 551  *   Parsed item flags.
 552  */
 553 static void
 554 flow_verbs_translate_item_ipv6(struct mlx5_flow *dev_flow,
 555                                const struct rte_flow_item *item,
 556                                uint64_t item_flags)
 557 {
 558         const struct rte_flow_item_ipv6 *spec = item->spec;
 559         const struct rte_flow_item_ipv6 *mask = item->mask;
 560         unsigned int size = sizeof(struct ibv_flow_spec_ipv6);
 561         struct ibv_flow_spec_ipv6 ipv6 = {
 562                 .type = IBV_FLOW_SPEC_IPV6 | VERBS_SPEC_INNER(item_flags),
 563                 .size = size,
 564         };
 565
 566         if (!mask)
 567                 mask = &rte_flow_item_ipv6_mask;
 568         if (spec) {
 569                 unsigned int i;
 570                 uint32_t vtc_flow_val;
 571                 uint32_t vtc_flow_mask;
 572
 573                 memcpy(&ipv6.val.src_ip, spec->hdr.src_addr,
 574                        RTE_DIM(ipv6.val.src_ip));
 575                 memcpy(&ipv6.val.dst_ip, spec->hdr.dst_addr,
 576                        RTE_DIM(ipv6.val.dst_ip));
 577                 memcpy(&ipv6.mask.src_ip, mask->hdr.src_addr,
 578                        RTE_DIM(ipv6.mask.src_ip));
 579                 memcpy(&ipv6.mask.dst_ip, mask->hdr.dst_addr,
 580                        RTE_DIM(ipv6.mask.dst_ip));
 581                 vtc_flow_val = rte_be_to_cpu_32(spec->hdr.vtc_flow);
 582                 vtc_flow_mask = rte_be_to_cpu_32(mask->hdr.vtc_flow);
 583                 ipv6.val.flow_label =
 584                         rte_cpu_to_be_32((vtc_flow_val & RTE_IPV6_HDR_FL_MASK) >>
 585                                          RTE_IPV6_HDR_FL_SHIFT);
 586                 ipv6.val.traffic_class = (vtc_flow_val & RTE_IPV6_HDR_TC_MASK) >>
 587                                          RTE_IPV6_HDR_TC_SHIFT;
 588                 ipv6.val.next_hdr = spec->hdr.proto;
 589                 ipv6.mask.flow_label =
 590                         rte_cpu_to_be_32((vtc_flow_mask & RTE_IPV6_HDR_FL_MASK) >>
 591                                          RTE_IPV6_HDR_FL_SHIFT);
 592                 ipv6.mask.traffic_class = (vtc_flow_mask & RTE_IPV6_HDR_TC_MASK) >>
 593                                           RTE_IPV6_HDR_TC_SHIFT;
 594                 ipv6.mask.next_hdr = mask->hdr.proto;
 595                 /* Remove unwanted bits from values. */
 596                 for (i = 0; i < RTE_DIM(ipv6.val.src_ip); ++i) {
 597                         ipv6.val.src_ip[i] &= ipv6.mask.src_ip[i];
 598                         ipv6.val.dst_ip[i] &= ipv6.mask.dst_ip[i];
 599                 }
 600                 ipv6.val.flow_label &= ipv6.mask.flow_label;
 601                 ipv6.val.traffic_class &= ipv6.mask.traffic_class;
 602                 ipv6.val.next_hdr &= ipv6.mask.next_hdr;
 603         }
 604         flow_verbs_spec_add(&dev_flow->verbs, &ipv6, size);
 605 }
 606
 607 /**
 608  * Convert the @p item into a Verbs specification. This function assumes that
 609  * the input is valid and that there is space to insert the requested item
 610  * into the flow.
 611  *
 612  * @param[in, out] dev_flow
 613  *   Pointer to dev_flow structure.
 614  * @param[in] item
 615  *   Item specification.
 616  * @param[in] item_flags
 617  *   Parsed item flags.
 618  */
 619 static void
 620 flow_verbs_translate_item_tcp(struct mlx5_flow *dev_flow,
 621                               const struct rte_flow_item *item,
 622                               uint64_t item_flags __rte_unused)
 623 {
 624         const struct rte_flow_item_tcp *spec = item->spec;
 625         const struct rte_flow_item_tcp *mask = item->mask;
 626         unsigned int size = sizeof(struct ibv_flow_spec_tcp_udp);
 627         struct ibv_flow_spec_tcp_udp tcp = {
 628                 .type = IBV_FLOW_SPEC_TCP | VERBS_SPEC_INNER(item_flags),
 629                 .size = size,
 630         };
 631
 632         if (!mask)
 633                 mask = &rte_flow_item_tcp_mask;
 634         if (spec) {
 635                 tcp.val.dst_port = spec->hdr.dst_port;
 636                 tcp.val.src_port = spec->hdr.src_port;
 637                 tcp.mask.dst_port = mask->hdr.dst_port;
 638                 tcp.mask.src_port = mask->hdr.src_port;
 639                 /* Remove unwanted bits from values. */
 640                 tcp.val.src_port &= tcp.mask.src_port;
 641                 tcp.val.dst_port &= tcp.mask.dst_port;
 642         }
 643         flow_verbs_spec_add(&dev_flow->verbs, &tcp, size);
 644 }
 645
 646 /**
 647  * Convert the @p item into a Verbs specification. This function assumes that
 648  * the input is valid and that there is space to insert the requested item
 649  * into the flow.
 650  *
 651  * @param[in, out] dev_flow
 652  *   Pointer to dev_flow structure.
 653  * @param[in] item
 654  *   Item specification.
 655  * @param[in] item_flags
 656  *   Parsed item flags.
 657  */
 658 static void
 659 flow_verbs_translate_item_udp(struct mlx5_flow *dev_flow,
 660                               const struct rte_flow_item *item,
 661                               uint64_t item_flags __rte_unused)
 662 {
 663         const struct rte_flow_item_udp *spec = item->spec;
 664         const struct rte_flow_item_udp *mask = item->mask;
 665         unsigned int size = sizeof(struct ibv_flow_spec_tcp_udp);
 666         struct ibv_flow_spec_tcp_udp udp = {
 667                 .type = IBV_FLOW_SPEC_UDP | VERBS_SPEC_INNER(item_flags),
 668                 .size = size,
 669         };
 670
 671         if (!mask)
 672                 mask = &rte_flow_item_udp_mask;
 673         if (spec) {
 674                 udp.val.dst_port = spec->hdr.dst_port;
 675                 udp.val.src_port = spec->hdr.src_port;
 676                 udp.mask.dst_port = mask->hdr.dst_port;
 677                 udp.mask.src_port = mask->hdr.src_port;
 678                 /* Remove unwanted bits from values. */
 679                 udp.val.src_port &= udp.mask.src_port;
 680                 udp.val.dst_port &= udp.mask.dst_port;
 681         }
 682         item++;
 683         while (item->type == RTE_FLOW_ITEM_TYPE_VOID)
 684                 item++;
 685         if (!(udp.val.dst_port & udp.mask.dst_port)) {
 686                 switch ((item)->type) {
 687                 case RTE_FLOW_ITEM_TYPE_VXLAN:
 688                         udp.val.dst_port = htons(MLX5_UDP_PORT_VXLAN);
 689                         udp.mask.dst_port = 0xffff;
 690                         break;
 691                 case RTE_FLOW_ITEM_TYPE_VXLAN_GPE:
 692                         udp.val.dst_port = htons(MLX5_UDP_PORT_VXLAN_GPE);
 693                         udp.mask.dst_port = 0xffff;
 694                         break;
 695                 case RTE_FLOW_ITEM_TYPE_MPLS:
 696                         udp.val.dst_port = htons(MLX5_UDP_PORT_MPLS);
 697                         udp.mask.dst_port = 0xffff;
 698                         break;
 699                 default:
 700                         break;
 701                 }
 702         }
 703
 704         flow_verbs_spec_add(&dev_flow->verbs, &udp, size);
 705 }
 706
 707 /**
 708  * Convert the @p item into a Verbs specification. This function assumes that
 709  * the input is valid and that there is space to insert the requested item
 710  * into the flow.
 711  *
 712  * @param[in, out] dev_flow
 713  *   Pointer to dev_flow structure.
 714  * @param[in] item
 715  *   Item specification.
 716  * @param[in] item_flags
 717  *   Parsed item flags.
 718  */
 719 static void
 720 flow_verbs_translate_item_vxlan(struct mlx5_flow *dev_flow,
 721                                 const struct rte_flow_item *item,
 722                                 uint64_t item_flags __rte_unused)
 723 {
 724         const struct rte_flow_item_vxlan *spec = item->spec;
 725         const struct rte_flow_item_vxlan *mask = item->mask;
 726         unsigned int size = sizeof(struct ibv_flow_spec_tunnel);
 727         struct ibv_flow_spec_tunnel vxlan = {
 728                 .type = IBV_FLOW_SPEC_VXLAN_TUNNEL,
 729                 .size = size,
 730         };
 731         union vni {
 732                 uint32_t vlan_id;
 733                 uint8_t vni[4];
 734         } id = { .vlan_id = 0, };
 735
 736         if (!mask)
 737                 mask = &rte_flow_item_vxlan_mask;
 738         if (spec) {
 739                 memcpy(&id.vni[1], spec->vni, 3);
 740                 vxlan.val.tunnel_id = id.vlan_id;
 741                 memcpy(&id.vni[1], mask->vni, 3);
 742                 vxlan.mask.tunnel_id = id.vlan_id;
 743                 /* Remove unwanted bits from values. */
 744                 vxlan.val.tunnel_id &= vxlan.mask.tunnel_id;
 745         }
 746         flow_verbs_spec_add(&dev_flow->verbs, &vxlan, 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_gpe(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_gpe *spec = item->spec;
 767         const struct rte_flow_item_vxlan_gpe *mask = item->mask;
 768         unsigned int size = sizeof(struct ibv_flow_spec_tunnel);
 769         struct ibv_flow_spec_tunnel vxlan_gpe = {
 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_gpe_mask;
 780         if (spec) {
 781                 memcpy(&id.vni[1], spec->vni, 3);
 782                 vxlan_gpe.val.tunnel_id = id.vlan_id;
 783                 memcpy(&id.vni[1], mask->vni, 3);
 784                 vxlan_gpe.mask.tunnel_id = id.vlan_id;
 785                 /* Remove unwanted bits from values. */
 786                 vxlan_gpe.val.tunnel_id &= vxlan_gpe.mask.tunnel_id;
 787         }
 788         flow_verbs_spec_add(&dev_flow->verbs, &vxlan_gpe, size);
 789 }
 790
 791 /**
 792  * Update the protocol in Verbs IPv4/IPv6 spec.
 793  *
 794  * @param[in, out] attr
 795  *   Pointer to Verbs attributes structure.
 796  * @param[in] search
 797  *   Specification type to search in order to update the IP protocol.
 798  * @param[in] protocol
 799  *   Protocol value to set if none is present in the specification.
 800  */
 801 static void
 802 flow_verbs_item_gre_ip_protocol_update(struct ibv_flow_attr *attr,
 803                                        enum ibv_flow_spec_type search,
 804                                        uint8_t protocol)
 805 {
 806         unsigned int i;
 807         struct ibv_spec_header *hdr = (struct ibv_spec_header *)
 808                 ((uint8_t *)attr + sizeof(struct ibv_flow_attr));
 809
 810         if (!attr)
 811                 return;
 812         for (i = 0; i != attr->num_of_specs; ++i) {
 813                 if (hdr->type == search) {
 814                         union {
 815                                 struct ibv_flow_spec_ipv4_ext *ipv4;
 816                                 struct ibv_flow_spec_ipv6 *ipv6;
 817                         } ip;
 818
 819                         switch (search) {
 820                         case IBV_FLOW_SPEC_IPV4_EXT:
 821                                 ip.ipv4 = (struct ibv_flow_spec_ipv4_ext *)hdr;
 822                                 if (!ip.ipv4->val.proto) {
 823                                         ip.ipv4->val.proto = protocol;
 824                                         ip.ipv4->mask.proto = 0xff;
 825                                 }
 826                                 break;
 827                         case IBV_FLOW_SPEC_IPV6:
 828                                 ip.ipv6 = (struct ibv_flow_spec_ipv6 *)hdr;
 829                                 if (!ip.ipv6->val.next_hdr) {
 830                                         ip.ipv6->val.next_hdr = protocol;
 831                                         ip.ipv6->mask.next_hdr = 0xff;
 832                                 }
 833                                 break;
 834                         default:
 835                                 break;
 836                         }
 837                         break;
 838                 }
 839                 hdr = (struct ibv_spec_header *)((uint8_t *)hdr + hdr->size);
 840         }
 841 }
 842
 843 /**
 844  * Convert the @p item into a Verbs specification. This function assumes that
 845  * the input is valid and that there is space to insert the requested item
 846  * into the flow.
 847  *
 848  * @param[in, out] dev_flow
 849  *   Pointer to dev_flow structure.
 850  * @param[in] item
 851  *   Item specification.
 852  * @param[in] item_flags
 853  *   Parsed item flags.
 854  */
 855 static void
 856 flow_verbs_translate_item_gre(struct mlx5_flow *dev_flow,
 857                               const struct rte_flow_item *item __rte_unused,
 858                               uint64_t item_flags)
 859 {
 860         struct mlx5_flow_verbs_workspace *verbs = &dev_flow->verbs;
 861 #ifndef HAVE_IBV_DEVICE_MPLS_SUPPORT
 862         unsigned int size = sizeof(struct ibv_flow_spec_tunnel);
 863         struct ibv_flow_spec_tunnel tunnel = {
 864                 .type = IBV_FLOW_SPEC_VXLAN_TUNNEL,
 865                 .size = size,
 866         };
 867 #else
 868         const struct rte_flow_item_gre *spec = item->spec;
 869         const struct rte_flow_item_gre *mask = item->mask;
 870         unsigned int size = sizeof(struct ibv_flow_spec_gre);
 871         struct ibv_flow_spec_gre tunnel = {
 872                 .type = IBV_FLOW_SPEC_GRE,
 873                 .size = size,
 874         };
 875
 876         if (!mask)
 877                 mask = &rte_flow_item_gre_mask;
 878         if (spec) {
 879                 tunnel.val.c_ks_res0_ver = spec->c_rsvd0_ver;
 880                 tunnel.val.protocol = spec->protocol;
 881                 tunnel.mask.c_ks_res0_ver = mask->c_rsvd0_ver;
 882                 tunnel.mask.protocol = mask->protocol;
 883                 /* Remove unwanted bits from values. */
 884                 tunnel.val.c_ks_res0_ver &= tunnel.mask.c_ks_res0_ver;
 885                 tunnel.val.protocol &= tunnel.mask.protocol;
 886                 tunnel.val.key &= tunnel.mask.key;
 887         }
 888 #endif
 889         if (item_flags & MLX5_FLOW_LAYER_OUTER_L3_IPV4)
 890                 flow_verbs_item_gre_ip_protocol_update(&verbs->attr,
 891                                                        IBV_FLOW_SPEC_IPV4_EXT,
 892                                                        IPPROTO_GRE);
 893         else
 894                 flow_verbs_item_gre_ip_protocol_update(&verbs->attr,
 895                                                        IBV_FLOW_SPEC_IPV6,
 896                                                        IPPROTO_GRE);
 897         flow_verbs_spec_add(verbs, &tunnel, size);
 898 }
 899
 900 /**
 901  * Convert the @p action into a Verbs specification. This function assumes that
 902  * the input is valid and that there is space to insert the requested action
 903  * into the flow. This function also return the action that was added.
 904  *
 905  * @param[in, out] dev_flow
 906  *   Pointer to dev_flow structure.
 907  * @param[in] item
 908  *   Item specification.
 909  * @param[in] item_flags
 910  *   Parsed item flags.
 911  */
 912 static void
 913 flow_verbs_translate_item_mpls(struct mlx5_flow *dev_flow __rte_unused,
 914                                const struct rte_flow_item *item __rte_unused,
 915                                uint64_t item_flags __rte_unused)
 916 {
 917 #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT
 918         const struct rte_flow_item_mpls *spec = item->spec;
 919         const struct rte_flow_item_mpls *mask = item->mask;
 920         unsigned int size = sizeof(struct ibv_flow_spec_mpls);
 921         struct ibv_flow_spec_mpls mpls = {
 922                 .type = IBV_FLOW_SPEC_MPLS,
 923                 .size = size,
 924         };
 925
 926         if (!mask)
 927                 mask = &rte_flow_item_mpls_mask;
 928         if (spec) {
 929                 memcpy(&mpls.val.label, spec, sizeof(mpls.val.label));
 930                 memcpy(&mpls.mask.label, mask, sizeof(mpls.mask.label));
 931                 /* Remove unwanted bits from values.  */
 932                 mpls.val.label &= mpls.mask.label;
 933         }
 934         flow_verbs_spec_add(&dev_flow->verbs, &mpls, size);
 935 #endif
 936 }
 937
 938 /**
 939  * Convert the @p action into a Verbs specification. This function assumes that
 940  * the input is valid and that there is space to insert the requested action
 941  * into the flow.
 942  *
 943  * @param[in] dev_flow
 944  *   Pointer to mlx5_flow.
 945  * @param[in] action
 946  *   Action configuration.
 947  */
 948 static void
 949 flow_verbs_translate_action_drop
 950         (struct mlx5_flow *dev_flow,
 951          const struct rte_flow_action *action __rte_unused)
 952 {
 953         unsigned int size = sizeof(struct ibv_flow_spec_action_drop);
 954         struct ibv_flow_spec_action_drop drop = {
 955                         .type = IBV_FLOW_SPEC_ACTION_DROP,
 956                         .size = size,
 957         };
 958
 959         flow_verbs_spec_add(&dev_flow->verbs, &drop, size);
 960 }
 961
 962 /**
 963  * Convert the @p action into a Verbs specification. This function assumes that
 964  * the input is valid and that there is space to insert the requested action
 965  * into the flow.
 966  *
 967  * @param[in] rss_desc
 968  *   Pointer to mlx5_flow_rss_desc.
 969  * @param[in] action
 970  *   Action configuration.
 971  */
 972 static void
 973 flow_verbs_translate_action_queue(struct mlx5_flow_rss_desc *rss_desc,
 974                                   const struct rte_flow_action *action)
 975 {
 976         const struct rte_flow_action_queue *queue = action->conf;
 977
 978         rss_desc->queue[0] = queue->index;
 979         rss_desc->queue_num = 1;
 980 }
 981
 982 /**
 983  * Convert the @p action into a Verbs specification. This function assumes that
 984  * the input is valid and that there is space to insert the requested action
 985  * into the flow.
 986  *
 987  * @param[in] rss_desc
 988  *   Pointer to mlx5_flow_rss_desc.
 989  * @param[in] action
 990  *   Action configuration.
 991  */
 992 static void
 993 flow_verbs_translate_action_rss(struct mlx5_flow_rss_desc *rss_desc,
 994                                 const struct rte_flow_action *action)
 995 {
 996         const struct rte_flow_action_rss *rss = action->conf;
 997         const uint8_t *rss_key;
 998
 999         memcpy(rss_desc->queue, rss->queue, rss->queue_num * sizeof(uint16_t));
1000         rss_desc->queue_num = rss->queue_num;
1001         /* NULL RSS key indicates default RSS key. */
1002         rss_key = !rss->key ? rss_hash_default_key : rss->key;
1003         memcpy(rss_desc->key, rss_key, MLX5_RSS_HASH_KEY_LEN);
1004         /*
1005          * rss->level and rss.types should be set in advance when expanding
1006          * items for RSS.
1007          */
1008 }
1009
1010 /**
1011  * Convert the @p action into a Verbs specification. This function assumes that
1012  * the input is valid and that there is space to insert the requested action
1013  * into the flow.
1014  *
1015  * @param[in] dev_flow
1016  *   Pointer to mlx5_flow.
1017  * @param[in] action
1018  *   Action configuration.
1019  */
1020 static void
1021 flow_verbs_translate_action_flag
1022         (struct mlx5_flow *dev_flow,
1023          const struct rte_flow_action *action __rte_unused)
1024 {
1025         unsigned int size = sizeof(struct ibv_flow_spec_action_tag);
1026         struct ibv_flow_spec_action_tag tag = {
1027                 .type = IBV_FLOW_SPEC_ACTION_TAG,
1028                 .size = size,
1029                 .tag_id = mlx5_flow_mark_set(MLX5_FLOW_MARK_DEFAULT),
1030         };
1031
1032         flow_verbs_spec_add(&dev_flow->verbs, &tag, size);
1033 }
1034
1035 /**
1036  * Convert the @p action into a Verbs specification. This function assumes that
1037  * the input is valid and that there is space to insert the requested action
1038  * into the flow.
1039  *
1040  * @param[in] dev_flow
1041  *   Pointer to mlx5_flow.
1042  * @param[in] action
1043  *   Action configuration.
1044  */
1045 static void
1046 flow_verbs_translate_action_mark(struct mlx5_flow *dev_flow,
1047                                  const struct rte_flow_action *action)
1048 {
1049         const struct rte_flow_action_mark *mark = action->conf;
1050         unsigned int size = sizeof(struct ibv_flow_spec_action_tag);
1051         struct ibv_flow_spec_action_tag tag = {
1052                 .type = IBV_FLOW_SPEC_ACTION_TAG,
1053                 .size = size,
1054                 .tag_id = mlx5_flow_mark_set(mark->id),
1055         };
1056
1057         flow_verbs_spec_add(&dev_flow->verbs, &tag, size);
1058 }
1059
1060 /**
1061  * Convert the @p action into a Verbs specification. This function assumes that
1062  * the input is valid and that there is space to insert the requested action
1063  * into the flow.
1064  *
1065  * @param[in] dev
1066  *   Pointer to the Ethernet device structure.
1067  * @param[in] action
1068  *   Action configuration.
1069  * @param[in] dev_flow
1070  *   Pointer to mlx5_flow.
1071  * @param[out] error
1072  *   Pointer to error structure.
1073  *
1074  * @return
1075  *   0 On success else a negative errno value is returned and rte_errno is set.
1076  */
1077 static int
1078 flow_verbs_translate_action_count(struct mlx5_flow *dev_flow,
1079                                   const struct rte_flow_action *action,
1080                                   struct rte_eth_dev *dev,
1081                                   struct rte_flow_error *error)
1082 {
1083         const struct rte_flow_action_count *count = action->conf;
1084         struct rte_flow *flow = dev_flow->flow;
1085 #if defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42) || \
1086         defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45)
1087         struct mlx5_flow_counter_pool *pool;
1088         struct mlx5_flow_counter *cnt = NULL;
1089         struct mlx5_flow_counter_ext *cnt_ext;
1090         unsigned int size = sizeof(struct ibv_flow_spec_counter_action);
1091         struct ibv_flow_spec_counter_action counter = {
1092                 .type = IBV_FLOW_SPEC_ACTION_COUNT,
1093                 .size = size,
1094         };
1095 #endif
1096
1097         if (!flow->counter) {
1098                 flow->counter = flow_verbs_counter_new(dev, count->shared,
1099                                                        count->id);
1100                 if (!flow->counter)
1101                         return rte_flow_error_set(error, rte_errno,
1102                                                   RTE_FLOW_ERROR_TYPE_ACTION,
1103                                                   action,
1104                                                   "cannot get counter"
1105                                                   " context.");
1106         }
1107 #if defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42)
1108         cnt = flow_verbs_counter_get_by_idx(dev, flow->counter, &pool);
1109         cnt_ext = MLX5_CNT_TO_CNT_EXT(pool, cnt);
1110         counter.counter_set_handle = cnt_ext->cs->handle;
1111         flow_verbs_spec_add(&dev_flow->verbs, &counter, size);
1112 #elif defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45)
1113         cnt = flow_verbs_counter_get_by_idx(dev, flow->counter, &pool);
1114         cnt_ext = MLX5_CNT_TO_CNT_EXT(pool, cnt);
1115         counter.counters = cnt_ext->cs;
1116         flow_verbs_spec_add(&dev_flow->verbs, &counter, size);
1117 #endif
1118         return 0;
1119 }
1120
1121 /**
1122  * Internal validation function. For validating both actions and items.
1123  *
1124  * @param[in] dev
1125  *   Pointer to the Ethernet device structure.
1126  * @param[in] attr
1127  *   Pointer to the flow attributes.
1128  * @param[in] items
1129  *   Pointer to the list of items.
1130  * @param[in] actions
1131  *   Pointer to the list of actions.
1132  * @param[in] external
1133  *   This flow rule is created by request external to PMD.
1134  * @param[in] hairpin
1135  *   Number of hairpin TX actions, 0 means classic flow.
1136  * @param[out] error
1137  *   Pointer to the error structure.
1138  *
1139  * @return
1140  *   0 on success, a negative errno value otherwise and rte_errno is set.
1141  */
1142 static int
1143 flow_verbs_validate(struct rte_eth_dev *dev,
1144                     const struct rte_flow_attr *attr,
1145                     const struct rte_flow_item items[],
1146                     const struct rte_flow_action actions[],
1147                     bool external __rte_unused,
1148                     int hairpin __rte_unused,
1149                     struct rte_flow_error *error)
1150 {
1151         int ret;
1152         uint64_t action_flags = 0;
1153         uint64_t item_flags = 0;
1154         uint64_t last_item = 0;
1155         uint8_t next_protocol = 0xff;
1156         uint16_t ether_type = 0;
1157
1158         if (items == NULL)
1159                 return -1;
1160         ret = mlx5_flow_validate_attributes(dev, attr, error);
1161         if (ret < 0)
1162                 return ret;
1163         for (; items->type != RTE_FLOW_ITEM_TYPE_END; items++) {
1164                 int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1165                 int ret = 0;
1166
1167                 switch (items->type) {
1168                 case RTE_FLOW_ITEM_TYPE_VOID:
1169                         break;
1170                 case RTE_FLOW_ITEM_TYPE_ETH:
1171                         ret = mlx5_flow_validate_item_eth(items, item_flags,
1172                                                           error);
1173                         if (ret < 0)
1174                                 return ret;
1175                         last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L2 :
1176                                              MLX5_FLOW_LAYER_OUTER_L2;
1177                         if (items->mask != NULL && items->spec != NULL) {
1178                                 ether_type =
1179                                         ((const struct rte_flow_item_eth *)
1180                                          items->spec)->type;
1181                                 ether_type &=
1182                                         ((const struct rte_flow_item_eth *)
1183                                          items->mask)->type;
1184                                 ether_type = rte_be_to_cpu_16(ether_type);
1185                         } else {
1186                                 ether_type = 0;
1187                         }
1188                         break;
1189                 case RTE_FLOW_ITEM_TYPE_VLAN:
1190                         ret = mlx5_flow_validate_item_vlan(items, item_flags,
1191                                                            dev, error);
1192                         if (ret < 0)
1193                                 return ret;
1194                         last_item = tunnel ? (MLX5_FLOW_LAYER_INNER_L2 |
1195                                               MLX5_FLOW_LAYER_INNER_VLAN) :
1196                                              (MLX5_FLOW_LAYER_OUTER_L2 |
1197                                               MLX5_FLOW_LAYER_OUTER_VLAN);
1198                         if (items->mask != NULL && items->spec != NULL) {
1199                                 ether_type =
1200                                         ((const struct rte_flow_item_vlan *)
1201                                          items->spec)->inner_type;
1202                                 ether_type &=
1203                                         ((const struct rte_flow_item_vlan *)
1204                                          items->mask)->inner_type;
1205                                 ether_type = rte_be_to_cpu_16(ether_type);
1206                         } else {
1207                                 ether_type = 0;
1208                         }
1209                         break;
1210                 case RTE_FLOW_ITEM_TYPE_IPV4:
1211                         ret = mlx5_flow_validate_item_ipv4(items, item_flags,
1212                                                            last_item,
1213                                                            ether_type, NULL,
1214                                                            error);
1215                         if (ret < 0)
1216                                 return ret;
1217                         last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV4 :
1218                                              MLX5_FLOW_LAYER_OUTER_L3_IPV4;
1219                         if (items->mask != NULL &&
1220                             ((const struct rte_flow_item_ipv4 *)
1221                              items->mask)->hdr.next_proto_id) {
1222                                 next_protocol =
1223                                         ((const struct rte_flow_item_ipv4 *)
1224                                          (items->spec))->hdr.next_proto_id;
1225                                 next_protocol &=
1226                                         ((const struct rte_flow_item_ipv4 *)
1227                                          (items->mask))->hdr.next_proto_id;
1228                         } else {
1229                                 /* Reset for inner layer. */
1230                                 next_protocol = 0xff;
1231                         }
1232                         break;
1233                 case RTE_FLOW_ITEM_TYPE_IPV6:
1234                         ret = mlx5_flow_validate_item_ipv6(items, item_flags,
1235                                                            last_item,
1236                                                            ether_type, NULL,
1237                                                            error);
1238                         if (ret < 0)
1239                                 return ret;
1240                         last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV6 :
1241                                              MLX5_FLOW_LAYER_OUTER_L3_IPV6;
1242                         if (items->mask != NULL &&
1243                             ((const struct rte_flow_item_ipv6 *)
1244                              items->mask)->hdr.proto) {
1245                                 next_protocol =
1246                                         ((const struct rte_flow_item_ipv6 *)
1247                                          items->spec)->hdr.proto;
1248                                 next_protocol &=
1249                                         ((const struct rte_flow_item_ipv6 *)
1250                                          items->mask)->hdr.proto;
1251                         } else {
1252                                 /* Reset for inner layer. */
1253                                 next_protocol = 0xff;
1254                         }
1255                         break;
1256                 case RTE_FLOW_ITEM_TYPE_UDP:
1257                         ret = mlx5_flow_validate_item_udp(items, item_flags,
1258                                                           next_protocol,
1259                                                           error);
1260                         if (ret < 0)
1261                                 return ret;
1262                         last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L4_UDP :
1263                                              MLX5_FLOW_LAYER_OUTER_L4_UDP;
1264                         break;
1265                 case RTE_FLOW_ITEM_TYPE_TCP:
1266                         ret = mlx5_flow_validate_item_tcp
1267                                                 (items, item_flags,
1268                                                  next_protocol,
1269                                                  &rte_flow_item_tcp_mask,
1270                                                  error);
1271                         if (ret < 0)
1272                                 return ret;
1273                         last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L4_TCP :
1274                                              MLX5_FLOW_LAYER_OUTER_L4_TCP;
1275                         break;
1276                 case RTE_FLOW_ITEM_TYPE_VXLAN:
1277                         ret = mlx5_flow_validate_item_vxlan(items, item_flags,
1278                                                             error);
1279                         if (ret < 0)
1280                                 return ret;
1281                         last_item = MLX5_FLOW_LAYER_VXLAN;
1282                         break;
1283                 case RTE_FLOW_ITEM_TYPE_VXLAN_GPE:
1284                         ret = mlx5_flow_validate_item_vxlan_gpe(items,
1285                                                                 item_flags,
1286                                                                 dev, error);
1287                         if (ret < 0)
1288                                 return ret;
1289                         last_item = MLX5_FLOW_LAYER_VXLAN_GPE;
1290                         break;
1291                 case RTE_FLOW_ITEM_TYPE_GRE:
1292                         ret = mlx5_flow_validate_item_gre(items, item_flags,
1293                                                           next_protocol, error);
1294                         if (ret < 0)
1295                                 return ret;
1296                         last_item = MLX5_FLOW_LAYER_GRE;
1297                         break;
1298                 case RTE_FLOW_ITEM_TYPE_MPLS:
1299                         ret = mlx5_flow_validate_item_mpls(dev, items,
1300                                                            item_flags,
1301                                                            last_item, error);
1302                         if (ret < 0)
1303                                 return ret;
1304                         last_item = MLX5_FLOW_LAYER_MPLS;
1305                         break;
1306                 default:
1307                         return rte_flow_error_set(error, ENOTSUP,
1308                                                   RTE_FLOW_ERROR_TYPE_ITEM,
1309                                                   NULL, "item not supported");
1310                 }
1311                 item_flags |= last_item;
1312         }
1313         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
1314                 switch (actions->type) {
1315                 case RTE_FLOW_ACTION_TYPE_VOID:
1316                         break;
1317                 case RTE_FLOW_ACTION_TYPE_FLAG:
1318                         ret = mlx5_flow_validate_action_flag(action_flags,
1319                                                              attr,
1320                                                              error);
1321                         if (ret < 0)
1322                                 return ret;
1323                         action_flags |= MLX5_FLOW_ACTION_FLAG;
1324                         break;
1325                 case RTE_FLOW_ACTION_TYPE_MARK:
1326                         ret = mlx5_flow_validate_action_mark(actions,
1327                                                              action_flags,
1328                                                              attr,
1329                                                              error);
1330                         if (ret < 0)
1331                                 return ret;
1332                         action_flags |= MLX5_FLOW_ACTION_MARK;
1333                         break;
1334                 case RTE_FLOW_ACTION_TYPE_DROP:
1335                         ret = mlx5_flow_validate_action_drop(action_flags,
1336                                                              attr,
1337                                                              error);
1338                         if (ret < 0)
1339                                 return ret;
1340                         action_flags |= MLX5_FLOW_ACTION_DROP;
1341                         break;
1342                 case RTE_FLOW_ACTION_TYPE_QUEUE:
1343                         ret = mlx5_flow_validate_action_queue(actions,
1344                                                               action_flags, dev,
1345                                                               attr,
1346                                                               error);
1347                         if (ret < 0)
1348                                 return ret;
1349                         action_flags |= MLX5_FLOW_ACTION_QUEUE;
1350                         break;
1351                 case RTE_FLOW_ACTION_TYPE_RSS:
1352                         ret = mlx5_flow_validate_action_rss(actions,
1353                                                             action_flags, dev,
1354                                                             attr, item_flags,
1355                                                             error);
1356                         if (ret < 0)
1357                                 return ret;
1358                         action_flags |= MLX5_FLOW_ACTION_RSS;
1359                         break;
1360                 case RTE_FLOW_ACTION_TYPE_COUNT:
1361                         ret = mlx5_flow_validate_action_count(dev, attr, error);
1362                         if (ret < 0)
1363                                 return ret;
1364                         action_flags |= MLX5_FLOW_ACTION_COUNT;
1365                         break;
1366                 default:
1367                         return rte_flow_error_set(error, ENOTSUP,
1368                                                   RTE_FLOW_ERROR_TYPE_ACTION,
1369                                                   actions,
1370                                                   "action not supported");
1371                 }
1372         }
1373         /*
1374          * Validate the drop action mutual exclusion with other actions.
1375          * Drop action is mutually-exclusive with any other action, except for
1376          * Count action.
1377          */
1378         if ((action_flags & MLX5_FLOW_ACTION_DROP) &&
1379             (action_flags & ~(MLX5_FLOW_ACTION_DROP | MLX5_FLOW_ACTION_COUNT)))
1380                 return rte_flow_error_set(error, EINVAL,
1381                                           RTE_FLOW_ERROR_TYPE_ACTION, NULL,
1382                                           "Drop action is mutually-exclusive "
1383                                           "with any other action, except for "
1384                                           "Count action");
1385         if (!(action_flags & MLX5_FLOW_FATE_ACTIONS))
1386                 return rte_flow_error_set(error, EINVAL,
1387                                           RTE_FLOW_ERROR_TYPE_ACTION, actions,
1388                                           "no fate action is found");
1389         return 0;
1390 }
1391
1392 /**
1393  * Calculate the required bytes that are needed for the action part of the verbs
1394  * flow.
1395  *
1396  * @param[in] actions
1397  *   Pointer to the list of actions.
1398  *
1399  * @return
1400  *   The size of the memory needed for all actions.
1401  */
1402 static int
1403 flow_verbs_get_actions_size(const struct rte_flow_action actions[])
1404 {
1405         int size = 0;
1406
1407         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
1408                 switch (actions->type) {
1409                 case RTE_FLOW_ACTION_TYPE_VOID:
1410                         break;
1411                 case RTE_FLOW_ACTION_TYPE_FLAG:
1412                         size += sizeof(struct ibv_flow_spec_action_tag);
1413                         break;
1414                 case RTE_FLOW_ACTION_TYPE_MARK:
1415                         size += sizeof(struct ibv_flow_spec_action_tag);
1416                         break;
1417                 case RTE_FLOW_ACTION_TYPE_DROP:
1418                         size += sizeof(struct ibv_flow_spec_action_drop);
1419                         break;
1420                 case RTE_FLOW_ACTION_TYPE_QUEUE:
1421                         break;
1422                 case RTE_FLOW_ACTION_TYPE_RSS:
1423                         break;
1424                 case RTE_FLOW_ACTION_TYPE_COUNT:
1425 #if defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42) || \
1426         defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45)
1427                         size += sizeof(struct ibv_flow_spec_counter_action);
1428 #endif
1429                         break;
1430                 default:
1431                         break;
1432                 }
1433         }
1434         return size;
1435 }
1436
1437 /**
1438  * Calculate the required bytes that are needed for the item part of the verbs
1439  * flow.
1440  *
1441  * @param[in] items
1442  *   Pointer to the list of items.
1443  *
1444  * @return
1445  *   The size of the memory needed for all items.
1446  */
1447 static int
1448 flow_verbs_get_items_size(const struct rte_flow_item items[])
1449 {
1450         int size = 0;
1451
1452         for (; items->type != RTE_FLOW_ITEM_TYPE_END; items++) {
1453                 switch (items->type) {
1454                 case RTE_FLOW_ITEM_TYPE_VOID:
1455                         break;
1456                 case RTE_FLOW_ITEM_TYPE_ETH:
1457                         size += sizeof(struct ibv_flow_spec_eth);
1458                         break;
1459                 case RTE_FLOW_ITEM_TYPE_VLAN:
1460                         size += sizeof(struct ibv_flow_spec_eth);
1461                         break;
1462                 case RTE_FLOW_ITEM_TYPE_IPV4:
1463                         size += sizeof(struct ibv_flow_spec_ipv4_ext);
1464                         break;
1465                 case RTE_FLOW_ITEM_TYPE_IPV6:
1466                         size += sizeof(struct ibv_flow_spec_ipv6);
1467                         break;
1468                 case RTE_FLOW_ITEM_TYPE_UDP:
1469                         size += sizeof(struct ibv_flow_spec_tcp_udp);
1470                         break;
1471                 case RTE_FLOW_ITEM_TYPE_TCP:
1472                         size += sizeof(struct ibv_flow_spec_tcp_udp);
1473                         break;
1474                 case RTE_FLOW_ITEM_TYPE_VXLAN:
1475                         size += sizeof(struct ibv_flow_spec_tunnel);
1476                         break;
1477                 case RTE_FLOW_ITEM_TYPE_VXLAN_GPE:
1478                         size += sizeof(struct ibv_flow_spec_tunnel);
1479                         break;
1480 #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT
1481                 case RTE_FLOW_ITEM_TYPE_GRE:
1482                         size += sizeof(struct ibv_flow_spec_gre);
1483                         break;
1484                 case RTE_FLOW_ITEM_TYPE_MPLS:
1485                         size += sizeof(struct ibv_flow_spec_mpls);
1486                         break;
1487 #else
1488                 case RTE_FLOW_ITEM_TYPE_GRE:
1489                         size += sizeof(struct ibv_flow_spec_tunnel);
1490                         break;
1491 #endif
1492                 default:
1493                         break;
1494                 }
1495         }
1496         return size;
1497 }
1498
1499 /**
1500  * Internal preparation function. Allocate mlx5_flow with the required size.
1501  * The required size is calculate based on the actions and items. This function
1502  * also returns the detected actions and items for later use.
1503  *
1504  * @param[in] dev
1505  *   Pointer to Ethernet device.
1506  * @param[in] attr
1507  *   Pointer to the flow attributes.
1508  * @param[in] items
1509  *   Pointer to the list of items.
1510  * @param[in] actions
1511  *   Pointer to the list of actions.
1512  * @param[out] error
1513  *   Pointer to the error structure.
1514  *
1515  * @return
1516  *   Pointer to mlx5_flow object on success, otherwise NULL and rte_errno
1517  *   is set.
1518  */
1519 static struct mlx5_flow *
1520 flow_verbs_prepare(struct rte_eth_dev *dev,
1521                    const struct rte_flow_attr *attr __rte_unused,
1522                    const struct rte_flow_item items[],
1523                    const struct rte_flow_action actions[],
1524                    struct rte_flow_error *error)
1525 {
1526         size_t size = 0;
1527         uint32_t handle_idx = 0;
1528         struct mlx5_flow *dev_flow;
1529         struct mlx5_flow_handle *dev_handle;
1530         struct mlx5_priv *priv = dev->data->dev_private;
1531
1532         size += flow_verbs_get_actions_size(actions);
1533         size += flow_verbs_get_items_size(items);
1534         if (size > MLX5_VERBS_MAX_SPEC_ACT_SIZE) {
1535                 rte_flow_error_set(error, E2BIG,
1536                                    RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
1537                                    "Verbs spec/action size too large");
1538                 return NULL;
1539         }
1540         /* In case of corrupting the memory. */
1541         if (priv->flow_idx >= MLX5_NUM_MAX_DEV_FLOWS) {
1542                 rte_flow_error_set(error, ENOSPC,
1543                                    RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
1544                                    "not free temporary device flow");
1545                 return NULL;
1546         }
1547         dev_handle = mlx5_ipool_zmalloc(priv->sh->ipool[MLX5_IPOOL_MLX5_FLOW],
1548                                    &handle_idx);
1549         if (!dev_handle) {
1550                 rte_flow_error_set(error, ENOMEM,
1551                                    RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
1552                                    "not enough memory to create flow handle");
1553                 return NULL;
1554         }
1555         /* No multi-thread supporting. */
1556         dev_flow = &((struct mlx5_flow *)priv->inter_flows)[priv->flow_idx++];
1557         dev_flow->handle = dev_handle;
1558         dev_flow->handle_idx = handle_idx;
1559         /* Memcpy is used, only size needs to be cleared to 0. */
1560         dev_flow->verbs.size = 0;
1561         dev_flow->verbs.attr.num_of_specs = 0;
1562         dev_flow->ingress = attr->ingress;
1563         dev_flow->hash_fields = 0;
1564         /* Need to set transfer attribute: not supported in Verbs mode. */
1565         return dev_flow;
1566 }
1567
1568 /**
1569  * Fill the flow with verb spec.
1570  *
1571  * @param[in] dev
1572  *   Pointer to Ethernet device.
1573  * @param[in, out] dev_flow
1574  *   Pointer to the mlx5 flow.
1575  * @param[in] attr
1576  *   Pointer to the flow attributes.
1577  * @param[in] items
1578  *   Pointer to the list of items.
1579  * @param[in] actions
1580  *   Pointer to the list of actions.
1581  * @param[out] error
1582  *   Pointer to the error structure.
1583  *
1584  * @return
1585  *   0 on success, else a negative errno value otherwise and rte_errno is set.
1586  */
1587 static int
1588 flow_verbs_translate(struct rte_eth_dev *dev,
1589                      struct mlx5_flow *dev_flow,
1590                      const struct rte_flow_attr *attr,
1591                      const struct rte_flow_item items[],
1592                      const struct rte_flow_action actions[],
1593                      struct rte_flow_error *error)
1594 {
1595         uint64_t item_flags = 0;
1596         uint64_t action_flags = 0;
1597         uint64_t priority = attr->priority;
1598         uint32_t subpriority = 0;
1599         struct mlx5_priv *priv = dev->data->dev_private;
1600         struct mlx5_flow_rss_desc *rss_desc = &((struct mlx5_flow_rss_desc *)
1601                                               priv->rss_desc)
1602                                               [!!priv->flow_nested_idx];
1603
1604         if (priority == MLX5_FLOW_PRIO_RSVD)
1605                 priority = priv->config.flow_prio - 1;
1606         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
1607                 int ret;
1608
1609                 switch (actions->type) {
1610                 case RTE_FLOW_ACTION_TYPE_VOID:
1611                         break;
1612                 case RTE_FLOW_ACTION_TYPE_FLAG:
1613                         flow_verbs_translate_action_flag(dev_flow, actions);
1614                         action_flags |= MLX5_FLOW_ACTION_FLAG;
1615                         dev_flow->handle->mark = 1;
1616                         break;
1617                 case RTE_FLOW_ACTION_TYPE_MARK:
1618                         flow_verbs_translate_action_mark(dev_flow, actions);
1619                         action_flags |= MLX5_FLOW_ACTION_MARK;
1620                         dev_flow->handle->mark = 1;
1621                         break;
1622                 case RTE_FLOW_ACTION_TYPE_DROP:
1623                         flow_verbs_translate_action_drop(dev_flow, actions);
1624                         action_flags |= MLX5_FLOW_ACTION_DROP;
1625                         dev_flow->handle->fate_action = MLX5_FLOW_FATE_DROP;
1626                         break;
1627                 case RTE_FLOW_ACTION_TYPE_QUEUE:
1628                         flow_verbs_translate_action_queue(rss_desc, actions);
1629                         action_flags |= MLX5_FLOW_ACTION_QUEUE;
1630                         dev_flow->handle->fate_action = MLX5_FLOW_FATE_QUEUE;
1631                         break;
1632                 case RTE_FLOW_ACTION_TYPE_RSS:
1633                         flow_verbs_translate_action_rss(rss_desc, actions);
1634                         action_flags |= MLX5_FLOW_ACTION_RSS;
1635                         dev_flow->handle->fate_action = MLX5_FLOW_FATE_QUEUE;
1636                         break;
1637                 case RTE_FLOW_ACTION_TYPE_COUNT:
1638                         ret = flow_verbs_translate_action_count(dev_flow,
1639                                                                 actions,
1640                                                                 dev, error);
1641                         if (ret < 0)
1642                                 return ret;
1643                         action_flags |= MLX5_FLOW_ACTION_COUNT;
1644                         break;
1645                 default:
1646                         return rte_flow_error_set(error, ENOTSUP,
1647                                                   RTE_FLOW_ERROR_TYPE_ACTION,
1648                                                   actions,
1649                                                   "action not supported");
1650                 }
1651         }
1652         dev_flow->act_flags = action_flags;
1653         for (; items->type != RTE_FLOW_ITEM_TYPE_END; items++) {
1654                 int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1655
1656                 switch (items->type) {
1657                 case RTE_FLOW_ITEM_TYPE_VOID:
1658                         break;
1659                 case RTE_FLOW_ITEM_TYPE_ETH:
1660                         flow_verbs_translate_item_eth(dev_flow, items,
1661                                                       item_flags);
1662                         subpriority = MLX5_PRIORITY_MAP_L2;
1663                         item_flags |= tunnel ? MLX5_FLOW_LAYER_INNER_L2 :
1664                                                MLX5_FLOW_LAYER_OUTER_L2;
1665                         break;
1666                 case RTE_FLOW_ITEM_TYPE_VLAN:
1667                         flow_verbs_translate_item_vlan(dev_flow, items,
1668                                                        item_flags);
1669                         subpriority = MLX5_PRIORITY_MAP_L2;
1670                         item_flags |= tunnel ? (MLX5_FLOW_LAYER_INNER_L2 |
1671                                                 MLX5_FLOW_LAYER_INNER_VLAN) :
1672                                                (MLX5_FLOW_LAYER_OUTER_L2 |
1673                                                 MLX5_FLOW_LAYER_OUTER_VLAN);
1674                         break;
1675                 case RTE_FLOW_ITEM_TYPE_IPV4:
1676                         flow_verbs_translate_item_ipv4(dev_flow, items,
1677                                                        item_flags);
1678                         subpriority = MLX5_PRIORITY_MAP_L3;
1679                         dev_flow->hash_fields |=
1680                                 mlx5_flow_hashfields_adjust
1681                                         (rss_desc, tunnel,
1682                                          MLX5_IPV4_LAYER_TYPES,
1683                                          MLX5_IPV4_IBV_RX_HASH);
1684                         item_flags |= tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV4 :
1685                                                MLX5_FLOW_LAYER_OUTER_L3_IPV4;
1686                         break;
1687                 case RTE_FLOW_ITEM_TYPE_IPV6:
1688                         flow_verbs_translate_item_ipv6(dev_flow, items,
1689                                                        item_flags);
1690                         subpriority = MLX5_PRIORITY_MAP_L3;
1691                         dev_flow->hash_fields |=
1692                                 mlx5_flow_hashfields_adjust
1693                                         (rss_desc, tunnel,
1694                                          MLX5_IPV6_LAYER_TYPES,
1695                                          MLX5_IPV6_IBV_RX_HASH);
1696                         item_flags |= tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV6 :
1697                                                MLX5_FLOW_LAYER_OUTER_L3_IPV6;
1698                         break;
1699                 case RTE_FLOW_ITEM_TYPE_TCP:
1700                         flow_verbs_translate_item_tcp(dev_flow, items,
1701                                                       item_flags);
1702                         subpriority = MLX5_PRIORITY_MAP_L4;
1703                         dev_flow->hash_fields |=
1704                                 mlx5_flow_hashfields_adjust
1705                                         (rss_desc, tunnel, ETH_RSS_TCP,
1706                                          (IBV_RX_HASH_SRC_PORT_TCP |
1707                                           IBV_RX_HASH_DST_PORT_TCP));
1708                         item_flags |= tunnel ? MLX5_FLOW_LAYER_INNER_L4_TCP :
1709                                                MLX5_FLOW_LAYER_OUTER_L4_TCP;
1710                         break;
1711                 case RTE_FLOW_ITEM_TYPE_UDP:
1712                         flow_verbs_translate_item_udp(dev_flow, items,
1713                                                       item_flags);
1714                         subpriority = MLX5_PRIORITY_MAP_L4;
1715                         dev_flow->hash_fields |=
1716                                 mlx5_flow_hashfields_adjust
1717                                         (rss_desc, tunnel, ETH_RSS_UDP,
1718                                          (IBV_RX_HASH_SRC_PORT_UDP |
1719                                           IBV_RX_HASH_DST_PORT_UDP));
1720                         item_flags |= tunnel ? MLX5_FLOW_LAYER_INNER_L4_UDP :
1721                                                MLX5_FLOW_LAYER_OUTER_L4_UDP;
1722                         break;
1723                 case RTE_FLOW_ITEM_TYPE_VXLAN:
1724                         flow_verbs_translate_item_vxlan(dev_flow, items,
1725                                                         item_flags);
1726                         subpriority = MLX5_PRIORITY_MAP_L2;
1727                         item_flags |= MLX5_FLOW_LAYER_VXLAN;
1728                         break;
1729                 case RTE_FLOW_ITEM_TYPE_VXLAN_GPE:
1730                         flow_verbs_translate_item_vxlan_gpe(dev_flow, items,
1731                                                             item_flags);
1732                         subpriority = MLX5_PRIORITY_MAP_L2;
1733                         item_flags |= MLX5_FLOW_LAYER_VXLAN_GPE;
1734                         break;
1735                 case RTE_FLOW_ITEM_TYPE_GRE:
1736                         flow_verbs_translate_item_gre(dev_flow, items,
1737                                                       item_flags);
1738                         subpriority = MLX5_PRIORITY_MAP_L2;
1739                         item_flags |= MLX5_FLOW_LAYER_GRE;
1740                         break;
1741                 case RTE_FLOW_ITEM_TYPE_MPLS:
1742                         flow_verbs_translate_item_mpls(dev_flow, items,
1743                                                        item_flags);
1744                         subpriority = MLX5_PRIORITY_MAP_L2;
1745                         item_flags |= MLX5_FLOW_LAYER_MPLS;
1746                         break;
1747                 default:
1748                         return rte_flow_error_set(error, ENOTSUP,
1749                                                   RTE_FLOW_ERROR_TYPE_ITEM,
1750                                                   NULL,
1751                                                   "item not supported");
1752                 }
1753         }
1754         dev_flow->handle->layers = item_flags;
1755         /* Other members of attr will be ignored. */
1756         dev_flow->verbs.attr.priority =
1757                 mlx5_flow_adjust_priority(dev, priority, subpriority);
1758         dev_flow->verbs.attr.port = (uint8_t)priv->dev_port;
1759         return 0;
1760 }
1761
1762 /**
1763  * Remove the flow from the NIC but keeps it in memory.
1764  *
1765  * @param[in] dev
1766  *   Pointer to the Ethernet device structure.
1767  * @param[in, out] flow
1768  *   Pointer to flow structure.
1769  */
1770 static void
1771 flow_verbs_remove(struct rte_eth_dev *dev, struct rte_flow *flow)
1772 {
1773         struct mlx5_priv *priv = dev->data->dev_private;
1774         struct mlx5_flow_handle *handle;
1775         uint32_t handle_idx;
1776
1777         if (!flow)
1778                 return;
1779         SILIST_FOREACH(priv->sh->ipool[MLX5_IPOOL_MLX5_FLOW], flow->dev_handles,
1780                        handle_idx, handle, next) {
1781                 if (handle->ib_flow) {
1782                         claim_zero(mlx5_glue->destroy_flow(handle->ib_flow));
1783                         handle->ib_flow = NULL;
1784                 }
1785                 /* hrxq is union, don't touch it only the flag is set. */
1786                 if (handle->rix_hrxq) {
1787                         if (handle->fate_action == MLX5_FLOW_FATE_DROP) {
1788                                 mlx5_hrxq_drop_release(dev);
1789                                 handle->rix_hrxq = 0;
1790                         } else if (handle->fate_action ==
1791                                    MLX5_FLOW_FATE_QUEUE) {
1792                                 mlx5_hrxq_release(dev, handle->rix_hrxq);
1793                                 handle->rix_hrxq = 0;
1794                         }
1795                 }
1796                 if (handle->vf_vlan.tag && handle->vf_vlan.created)
1797                         mlx5_vlan_vmwa_release(dev, &handle->vf_vlan);
1798         }
1799 }
1800
1801 /**
1802  * Remove the flow from the NIC and the memory.
1803  *
1804  * @param[in] dev
1805  *   Pointer to the Ethernet device structure.
1806  * @param[in, out] flow
1807  *   Pointer to flow structure.
1808  */
1809 static void
1810 flow_verbs_destroy(struct rte_eth_dev *dev, struct rte_flow *flow)
1811 {
1812         struct mlx5_priv *priv = dev->data->dev_private;
1813         struct mlx5_flow_handle *handle;
1814
1815         if (!flow)
1816                 return;
1817         flow_verbs_remove(dev, flow);
1818         while (flow->dev_handles) {
1819                 uint32_t tmp_idx = flow->dev_handles;
1820
1821                 handle = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_MLX5_FLOW],
1822                                    tmp_idx);
1823                 if (!handle)
1824                         return;
1825                 flow->dev_handles = handle->next.next;
1826                 mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_MLX5_FLOW],
1827                            tmp_idx);
1828         }
1829         if (flow->counter) {
1830                 flow_verbs_counter_release(dev, flow->counter);
1831                 flow->counter = 0;
1832         }
1833 }
1834
1835 /**
1836  * Apply the flow to the NIC.
1837  *
1838  * @param[in] dev
1839  *   Pointer to the Ethernet device structure.
1840  * @param[in, out] flow
1841  *   Pointer to flow structure.
1842  * @param[out] error
1843  *   Pointer to error structure.
1844  *
1845  * @return
1846  *   0 on success, a negative errno value otherwise and rte_errno is set.
1847  */
1848 static int
1849 flow_verbs_apply(struct rte_eth_dev *dev, struct rte_flow *flow,
1850                  struct rte_flow_error *error)
1851 {
1852         struct mlx5_priv *priv = dev->data->dev_private;
1853         struct mlx5_flow_handle *handle;
1854         struct mlx5_flow *dev_flow;
1855         struct mlx5_hrxq *hrxq;
1856         uint32_t dev_handles;
1857         int err;
1858         int idx;
1859
1860         for (idx = priv->flow_idx - 1; idx >= priv->flow_nested_idx; idx--) {
1861                 dev_flow = &((struct mlx5_flow *)priv->inter_flows)[idx];
1862                 handle = dev_flow->handle;
1863                 if (handle->fate_action == MLX5_FLOW_FATE_DROP) {
1864                         hrxq = mlx5_hrxq_drop_new(dev);
1865                         if (!hrxq) {
1866                                 rte_flow_error_set
1867                                         (error, errno,
1868                                          RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
1869                                          "cannot get drop hash queue");
1870                                 goto error;
1871                         }
1872                 } else {
1873                         uint32_t hrxq_idx;
1874                         struct mlx5_flow_rss_desc *rss_desc =
1875                                 &((struct mlx5_flow_rss_desc *)priv->rss_desc)
1876                                 [!!priv->flow_nested_idx];
1877
1878                         MLX5_ASSERT(rss_desc->queue_num);
1879                         hrxq_idx = mlx5_hrxq_get(dev, rss_desc->key,
1880                                              MLX5_RSS_HASH_KEY_LEN,
1881                                              dev_flow->hash_fields,
1882                                              rss_desc->queue,
1883                                              rss_desc->queue_num);
1884                         if (!hrxq_idx)
1885                                 hrxq_idx = mlx5_hrxq_new(dev, rss_desc->key,
1886                                                 MLX5_RSS_HASH_KEY_LEN,
1887                                                 dev_flow->hash_fields,
1888                                                 rss_desc->queue,
1889                                                 rss_desc->queue_num,
1890                                                 !!(handle->layers &
1891                                                 MLX5_FLOW_LAYER_TUNNEL));
1892                         hrxq = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_HRXQ],
1893                                          hrxq_idx);
1894                         if (!hrxq) {
1895                                 rte_flow_error_set
1896                                         (error, rte_errno,
1897                                          RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
1898                                          "cannot get hash queue");
1899                                 goto error;
1900                         }
1901                         handle->rix_hrxq = hrxq_idx;
1902                 }
1903                 MLX5_ASSERT(hrxq);
1904                 handle->ib_flow = mlx5_glue->create_flow(hrxq->qp,
1905                                                      &dev_flow->verbs.attr);
1906                 if (!handle->ib_flow) {
1907                         rte_flow_error_set(error, errno,
1908                                            RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1909                                            NULL,
1910                                            "hardware refuses to create flow");
1911                         goto error;
1912                 }
1913                 if (priv->vmwa_context &&
1914                     handle->vf_vlan.tag && !handle->vf_vlan.created) {
1915                         /*
1916                          * The rule contains the VLAN pattern.
1917                          * For VF we are going to create VLAN
1918                          * interface to make hypervisor set correct
1919                          * e-Switch vport context.
1920                          */
1921                         mlx5_vlan_vmwa_acquire(dev, &handle->vf_vlan);
1922                 }
1923         }
1924         return 0;
1925 error:
1926         err = rte_errno; /* Save rte_errno before cleanup. */
1927         SILIST_FOREACH(priv->sh->ipool[MLX5_IPOOL_MLX5_FLOW], flow->dev_handles,
1928                        dev_handles, handle, next) {
1929                 /* hrxq is union, don't touch it only the flag is set. */
1930                 if (handle->rix_hrxq) {
1931                         if (handle->fate_action == MLX5_FLOW_FATE_DROP) {
1932                                 mlx5_hrxq_drop_release(dev);
1933                                 handle->rix_hrxq = 0;
1934                         } else if (handle->fate_action ==
1935                                    MLX5_FLOW_FATE_QUEUE) {
1936                                 mlx5_hrxq_release(dev, handle->rix_hrxq);
1937                                 handle->rix_hrxq = 0;
1938                         }
1939                 }
1940                 if (handle->vf_vlan.tag && handle->vf_vlan.created)
1941                         mlx5_vlan_vmwa_release(dev, &handle->vf_vlan);
1942         }
1943         rte_errno = err; /* Restore rte_errno. */
1944         return -rte_errno;
1945 }
1946
1947 /**
1948  * Query a flow.
1949  *
1950  * @see rte_flow_query()
1951  * @see rte_flow_ops
1952  */
1953 static int
1954 flow_verbs_query(struct rte_eth_dev *dev,
1955                  struct rte_flow *flow,
1956                  const struct rte_flow_action *actions,
1957                  void *data,
1958                  struct rte_flow_error *error)
1959 {
1960         int ret = -EINVAL;
1961
1962         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
1963                 switch (actions->type) {
1964                 case RTE_FLOW_ACTION_TYPE_VOID:
1965                         break;
1966                 case RTE_FLOW_ACTION_TYPE_COUNT:
1967                         ret = flow_verbs_counter_query(dev, flow, data, error);
1968                         break;
1969                 default:
1970                         return rte_flow_error_set(error, ENOTSUP,
1971                                                   RTE_FLOW_ERROR_TYPE_ACTION,
1972                                                   actions,
1973                                                   "action not supported");
1974                 }
1975         }
1976         return ret;
1977 }
1978
1979 const struct mlx5_flow_driver_ops mlx5_flow_verbs_drv_ops = {
1980         .validate = flow_verbs_validate,
1981         .prepare = flow_verbs_prepare,
1982         .translate = flow_verbs_translate,
1983         .apply = flow_verbs_apply,
1984         .remove = flow_verbs_remove,
1985         .destroy = flow_verbs_destroy,
1986         .query = flow_verbs_query,
1987 };