drivers/net/mlx5/mlx5_flow.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright 2016 6WIND S.A.
   3  * Copyright 2016 Mellanox.
   4  */
   5
   6 #include <sys/queue.h>
   7 #include <string.h>
   8
   9 /* Verbs header. */
  10 /* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */
  11 #ifdef PEDANTIC
  12 #pragma GCC diagnostic ignored "-Wpedantic"
  13 #endif
  14 #include <infiniband/verbs.h>
  15 #ifdef PEDANTIC
  16 #pragma GCC diagnostic error "-Wpedantic"
  17 #endif
  18
  19 #include <rte_ethdev_driver.h>
  20 #include <rte_flow.h>
  21 #include <rte_flow_driver.h>
  22 #include <rte_malloc.h>
  23 #include <rte_ip.h>
  24
  25 #include "mlx5.h"
  26 #include "mlx5_defs.h"
  27 #include "mlx5_prm.h"
  28 #include "mlx5_glue.h"
  29
  30 /* Define minimal priority for control plane flows. */
  31 #define MLX5_CTRL_FLOW_PRIORITY 4
  32
  33 /* Internet Protocol versions. */
  34 #define MLX5_IPV4 4
  35 #define MLX5_IPV6 6
  36
  37 #ifndef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT
  38 struct ibv_flow_spec_counter_action {
  39         int dummy;
  40 };
  41 #endif
  42
  43 /* Dev ops structure defined in mlx5.c */
  44 extern const struct eth_dev_ops mlx5_dev_ops;
  45 extern const struct eth_dev_ops mlx5_dev_ops_isolate;
  46
  47 static int
  48 mlx5_flow_create_eth(const struct rte_flow_item *item,
  49                      const void *default_mask,
  50                      void *data);
  51
  52 static int
  53 mlx5_flow_create_vlan(const struct rte_flow_item *item,
  54                       const void *default_mask,
  55                       void *data);
  56
  57 static int
  58 mlx5_flow_create_ipv4(const struct rte_flow_item *item,
  59                       const void *default_mask,
  60                       void *data);
  61
  62 static int
  63 mlx5_flow_create_ipv6(const struct rte_flow_item *item,
  64                       const void *default_mask,
  65                       void *data);
  66
  67 static int
  68 mlx5_flow_create_udp(const struct rte_flow_item *item,
  69                      const void *default_mask,
  70                      void *data);
  71
  72 static int
  73 mlx5_flow_create_tcp(const struct rte_flow_item *item,
  74                      const void *default_mask,
  75                      void *data);
  76
  77 static int
  78 mlx5_flow_create_vxlan(const struct rte_flow_item *item,
  79                        const void *default_mask,
  80                        void *data);
  81
  82 struct mlx5_flow_parse;
  83
  84 static void
  85 mlx5_flow_create_copy(struct mlx5_flow_parse *parser, void *src,
  86                       unsigned int size);
  87
  88 static int
  89 mlx5_flow_create_flag_mark(struct mlx5_flow_parse *parser, uint32_t mark_id);
  90
  91 static int
  92 mlx5_flow_create_count(struct priv *priv, struct mlx5_flow_parse *parser);
  93
  94 /* Hash RX queue types. */
  95 enum hash_rxq_type {
  96         HASH_RXQ_TCPV4,
  97         HASH_RXQ_UDPV4,
  98         HASH_RXQ_IPV4,
  99         HASH_RXQ_TCPV6,
 100         HASH_RXQ_UDPV6,
 101         HASH_RXQ_IPV6,
 102         HASH_RXQ_ETH,
 103 };
 104
 105 /* Initialization data for hash RX queue. */
 106 struct hash_rxq_init {
 107         uint64_t hash_fields; /* Fields that participate in the hash. */
 108         uint64_t dpdk_rss_hf; /* Matching DPDK RSS hash fields. */
 109         unsigned int flow_priority; /* Flow priority to use. */
 110         unsigned int ip_version; /* Internet protocol. */
 111 };
 112
 113 /* Initialization data for hash RX queues. */
 114 const struct hash_rxq_init hash_rxq_init[] = {
 115         [HASH_RXQ_TCPV4] = {
 116                 .hash_fields = (IBV_RX_HASH_SRC_IPV4 |
 117                                 IBV_RX_HASH_DST_IPV4 |
 118                                 IBV_RX_HASH_SRC_PORT_TCP |
 119                                 IBV_RX_HASH_DST_PORT_TCP),
 120                 .dpdk_rss_hf = ETH_RSS_NONFRAG_IPV4_TCP,
 121                 .flow_priority = 0,
 122                 .ip_version = MLX5_IPV4,
 123         },
 124         [HASH_RXQ_UDPV4] = {
 125                 .hash_fields = (IBV_RX_HASH_SRC_IPV4 |
 126                                 IBV_RX_HASH_DST_IPV4 |
 127                                 IBV_RX_HASH_SRC_PORT_UDP |
 128                                 IBV_RX_HASH_DST_PORT_UDP),
 129                 .dpdk_rss_hf = ETH_RSS_NONFRAG_IPV4_UDP,
 130                 .flow_priority = 0,
 131                 .ip_version = MLX5_IPV4,
 132         },
 133         [HASH_RXQ_IPV4] = {
 134                 .hash_fields = (IBV_RX_HASH_SRC_IPV4 |
 135                                 IBV_RX_HASH_DST_IPV4),
 136                 .dpdk_rss_hf = (ETH_RSS_IPV4 |
 137                                 ETH_RSS_FRAG_IPV4),
 138                 .flow_priority = 1,
 139                 .ip_version = MLX5_IPV4,
 140         },
 141         [HASH_RXQ_TCPV6] = {
 142                 .hash_fields = (IBV_RX_HASH_SRC_IPV6 |
 143                                 IBV_RX_HASH_DST_IPV6 |
 144                                 IBV_RX_HASH_SRC_PORT_TCP |
 145                                 IBV_RX_HASH_DST_PORT_TCP),
 146                 .dpdk_rss_hf = ETH_RSS_NONFRAG_IPV6_TCP,
 147                 .flow_priority = 0,
 148                 .ip_version = MLX5_IPV6,
 149         },
 150         [HASH_RXQ_UDPV6] = {
 151                 .hash_fields = (IBV_RX_HASH_SRC_IPV6 |
 152                                 IBV_RX_HASH_DST_IPV6 |
 153                                 IBV_RX_HASH_SRC_PORT_UDP |
 154                                 IBV_RX_HASH_DST_PORT_UDP),
 155                 .dpdk_rss_hf = ETH_RSS_NONFRAG_IPV6_UDP,
 156                 .flow_priority = 0,
 157                 .ip_version = MLX5_IPV6,
 158         },
 159         [HASH_RXQ_IPV6] = {
 160                 .hash_fields = (IBV_RX_HASH_SRC_IPV6 |
 161                                 IBV_RX_HASH_DST_IPV6),
 162                 .dpdk_rss_hf = (ETH_RSS_IPV6 |
 163                                 ETH_RSS_FRAG_IPV6),
 164                 .flow_priority = 1,
 165                 .ip_version = MLX5_IPV6,
 166         },
 167         [HASH_RXQ_ETH] = {
 168                 .hash_fields = 0,
 169                 .dpdk_rss_hf = 0,
 170                 .flow_priority = 2,
 171         },
 172 };
 173
 174 /* Number of entries in hash_rxq_init[]. */
 175 const unsigned int hash_rxq_init_n = RTE_DIM(hash_rxq_init);
 176
 177 /** Structure for holding counter stats. */
 178 struct mlx5_flow_counter_stats {
 179         uint64_t hits; /**< Number of packets matched by the rule. */
 180         uint64_t bytes; /**< Number of bytes matched by the rule. */
 181 };
 182
 183 /** Structure for Drop queue. */
 184 struct mlx5_hrxq_drop {
 185         struct ibv_rwq_ind_table *ind_table; /**< Indirection table. */
 186         struct ibv_qp *qp; /**< Verbs queue pair. */
 187         struct ibv_wq *wq; /**< Verbs work queue. */
 188         struct ibv_cq *cq; /**< Verbs completion queue. */
 189 };
 190
 191 /* Flows structures. */
 192 struct mlx5_flow {
 193         uint64_t hash_fields; /**< Fields that participate in the hash. */
 194         struct ibv_flow_attr *ibv_attr; /**< Pointer to Verbs attributes. */
 195         struct ibv_flow *ibv_flow; /**< Verbs flow. */
 196         struct mlx5_hrxq *hrxq; /**< Hash Rx queues. */
 197 };
 198
 199 /* Drop flows structures. */
 200 struct mlx5_flow_drop {
 201         struct ibv_flow_attr *ibv_attr; /**< Pointer to Verbs attributes. */
 202         struct ibv_flow *ibv_flow; /**< Verbs flow. */
 203 };
 204
 205 struct rte_flow {
 206         TAILQ_ENTRY(rte_flow) next; /**< Pointer to the next flow structure. */
 207         uint32_t mark:1; /**< Set if the flow is marked. */
 208         uint32_t drop:1; /**< Drop queue. */
 209         uint16_t queues_n; /**< Number of entries in queue[]. */
 210         uint16_t (*queues)[]; /**< Queues indexes to use. */
 211         struct rte_eth_rss_conf rss_conf; /**< RSS configuration */
 212         uint8_t rss_key[40]; /**< copy of the RSS key. */
 213         struct ibv_counter_set *cs; /**< Holds the counters for the rule. */
 214         struct mlx5_flow_counter_stats counter_stats;/**<The counter stats. */
 215         struct mlx5_flow frxq[RTE_DIM(hash_rxq_init)];
 216         /**< Flow with Rx queue. */
 217 };
 218
 219 /** Static initializer for items. */
 220 #define ITEMS(...) \
 221         (const enum rte_flow_item_type []){ \
 222                 __VA_ARGS__, RTE_FLOW_ITEM_TYPE_END, \
 223         }
 224
 225 /** Structure to generate a simple graph of layers supported by the NIC. */
 226 struct mlx5_flow_items {
 227         /** List of possible actions for these items. */
 228         const enum rte_flow_action_type *const actions;
 229         /** Bit-masks corresponding to the possibilities for the item. */
 230         const void *mask;
 231         /**
 232          * Default bit-masks to use when item->mask is not provided. When
 233          * \default_mask is also NULL, the full supported bit-mask (\mask) is
 234          * used instead.
 235          */
 236         const void *default_mask;
 237         /** Bit-masks size in bytes. */
 238         const unsigned int mask_sz;
 239         /**
 240          * Conversion function from rte_flow to NIC specific flow.
 241          *
 242          * @param item
 243          *   rte_flow item to convert.
 244          * @param default_mask
 245          *   Default bit-masks to use when item->mask is not provided.
 246          * @param data
 247          *   Internal structure to store the conversion.
 248          *
 249          * @return
 250          *   0 on success, negative value otherwise.
 251          */
 252         int (*convert)(const struct rte_flow_item *item,
 253                        const void *default_mask,
 254                        void *data);
 255         /** Size in bytes of the destination structure. */
 256         const unsigned int dst_sz;
 257         /** List of possible following items.  */
 258         const enum rte_flow_item_type *const items;
 259 };
 260
 261 /** Valid action for this PMD. */
 262 static const enum rte_flow_action_type valid_actions[] = {
 263         RTE_FLOW_ACTION_TYPE_DROP,
 264         RTE_FLOW_ACTION_TYPE_QUEUE,
 265         RTE_FLOW_ACTION_TYPE_MARK,
 266         RTE_FLOW_ACTION_TYPE_FLAG,
 267 #ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT
 268         RTE_FLOW_ACTION_TYPE_COUNT,
 269 #endif
 270         RTE_FLOW_ACTION_TYPE_END,
 271 };
 272
 273 /** Graph of supported items and associated actions. */
 274 static const struct mlx5_flow_items mlx5_flow_items[] = {
 275         [RTE_FLOW_ITEM_TYPE_END] = {
 276                 .items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH,
 277                                RTE_FLOW_ITEM_TYPE_VXLAN),
 278         },
 279         [RTE_FLOW_ITEM_TYPE_ETH] = {
 280                 .items = ITEMS(RTE_FLOW_ITEM_TYPE_VLAN,
 281                                RTE_FLOW_ITEM_TYPE_IPV4,
 282                                RTE_FLOW_ITEM_TYPE_IPV6),
 283                 .actions = valid_actions,
 284                 .mask = &(const struct rte_flow_item_eth){
 285                         .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
 286                         .src.addr_bytes = "\xff\xff\xff\xff\xff\xff",
 287                         .type = -1,
 288                 },
 289                 .default_mask = &rte_flow_item_eth_mask,
 290                 .mask_sz = sizeof(struct rte_flow_item_eth),
 291                 .convert = mlx5_flow_create_eth,
 292                 .dst_sz = sizeof(struct ibv_flow_spec_eth),
 293         },
 294         [RTE_FLOW_ITEM_TYPE_VLAN] = {
 295                 .items = ITEMS(RTE_FLOW_ITEM_TYPE_IPV4,
 296                                RTE_FLOW_ITEM_TYPE_IPV6),
 297                 .actions = valid_actions,
 298                 .mask = &(const struct rte_flow_item_vlan){
 299                         .tci = -1,
 300                 },
 301                 .default_mask = &rte_flow_item_vlan_mask,
 302                 .mask_sz = sizeof(struct rte_flow_item_vlan),
 303                 .convert = mlx5_flow_create_vlan,
 304                 .dst_sz = 0,
 305         },
 306         [RTE_FLOW_ITEM_TYPE_IPV4] = {
 307                 .items = ITEMS(RTE_FLOW_ITEM_TYPE_UDP,
 308                                RTE_FLOW_ITEM_TYPE_TCP),
 309                 .actions = valid_actions,
 310                 .mask = &(const struct rte_flow_item_ipv4){
 311                         .hdr = {
 312                                 .src_addr = -1,
 313                                 .dst_addr = -1,
 314                                 .type_of_service = -1,
 315                                 .next_proto_id = -1,
 316                         },
 317                 },
 318                 .default_mask = &rte_flow_item_ipv4_mask,
 319                 .mask_sz = sizeof(struct rte_flow_item_ipv4),
 320                 .convert = mlx5_flow_create_ipv4,
 321                 .dst_sz = sizeof(struct ibv_flow_spec_ipv4_ext),
 322         },
 323         [RTE_FLOW_ITEM_TYPE_IPV6] = {
 324                 .items = ITEMS(RTE_FLOW_ITEM_TYPE_UDP,
 325                                RTE_FLOW_ITEM_TYPE_TCP),
 326                 .actions = valid_actions,
 327                 .mask = &(const struct rte_flow_item_ipv6){
 328                         .hdr = {
 329                                 .src_addr = {
 330                                         0xff, 0xff, 0xff, 0xff,
 331                                         0xff, 0xff, 0xff, 0xff,
 332                                         0xff, 0xff, 0xff, 0xff,
 333                                         0xff, 0xff, 0xff, 0xff,
 334                                 },
 335                                 .dst_addr = {
 336                                         0xff, 0xff, 0xff, 0xff,
 337                                         0xff, 0xff, 0xff, 0xff,
 338                                         0xff, 0xff, 0xff, 0xff,
 339                                         0xff, 0xff, 0xff, 0xff,
 340                                 },
 341                                 .vtc_flow = -1,
 342                                 .proto = -1,
 343                                 .hop_limits = -1,
 344                         },
 345                 },
 346                 .default_mask = &rte_flow_item_ipv6_mask,
 347                 .mask_sz = sizeof(struct rte_flow_item_ipv6),
 348                 .convert = mlx5_flow_create_ipv6,
 349                 .dst_sz = sizeof(struct ibv_flow_spec_ipv6),
 350         },
 351         [RTE_FLOW_ITEM_TYPE_UDP] = {
 352                 .items = ITEMS(RTE_FLOW_ITEM_TYPE_VXLAN),
 353                 .actions = valid_actions,
 354                 .mask = &(const struct rte_flow_item_udp){
 355                         .hdr = {
 356                                 .src_port = -1,
 357                                 .dst_port = -1,
 358                         },
 359                 },
 360                 .default_mask = &rte_flow_item_udp_mask,
 361                 .mask_sz = sizeof(struct rte_flow_item_udp),
 362                 .convert = mlx5_flow_create_udp,
 363                 .dst_sz = sizeof(struct ibv_flow_spec_tcp_udp),
 364         },
 365         [RTE_FLOW_ITEM_TYPE_TCP] = {
 366                 .actions = valid_actions,
 367                 .mask = &(const struct rte_flow_item_tcp){
 368                         .hdr = {
 369                                 .src_port = -1,
 370                                 .dst_port = -1,
 371                         },
 372                 },
 373                 .default_mask = &rte_flow_item_tcp_mask,
 374                 .mask_sz = sizeof(struct rte_flow_item_tcp),
 375                 .convert = mlx5_flow_create_tcp,
 376                 .dst_sz = sizeof(struct ibv_flow_spec_tcp_udp),
 377         },
 378         [RTE_FLOW_ITEM_TYPE_VXLAN] = {
 379                 .items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH),
 380                 .actions = valid_actions,
 381                 .mask = &(const struct rte_flow_item_vxlan){
 382                         .vni = "\xff\xff\xff",
 383                 },
 384                 .default_mask = &rte_flow_item_vxlan_mask,
 385                 .mask_sz = sizeof(struct rte_flow_item_vxlan),
 386                 .convert = mlx5_flow_create_vxlan,
 387                 .dst_sz = sizeof(struct ibv_flow_spec_tunnel),
 388         },
 389 };
 390
 391 /** Structure to pass to the conversion function. */
 392 struct mlx5_flow_parse {
 393         uint32_t inner; /**< Set once VXLAN is encountered. */
 394         uint32_t create:1;
 395         /**< Whether resources should remain after a validate. */
 396         uint32_t drop:1; /**< Target is a drop queue. */
 397         uint32_t mark:1; /**< Mark is present in the flow. */
 398         uint32_t count:1; /**< Count is present in the flow. */
 399         uint32_t mark_id; /**< Mark identifier. */
 400         uint16_t queues[RTE_MAX_QUEUES_PER_PORT]; /**< Queues indexes to use. */
 401         uint16_t queues_n; /**< Number of entries in queue[]. */
 402         struct rte_eth_rss_conf rss_conf; /**< RSS configuration */
 403         uint8_t rss_key[40]; /**< copy of the RSS key. */
 404         enum hash_rxq_type layer; /**< Last pattern layer detected. */
 405         struct ibv_counter_set *cs; /**< Holds the counter set for the rule */
 406         struct {
 407                 struct ibv_flow_attr *ibv_attr;
 408                 /**< Pointer to Verbs attributes. */
 409                 unsigned int offset;
 410                 /**< Current position or total size of the attribute. */
 411         } queue[RTE_DIM(hash_rxq_init)];
 412 };
 413
 414 static const struct rte_flow_ops mlx5_flow_ops = {
 415         .validate = mlx5_flow_validate,
 416         .create = mlx5_flow_create,
 417         .destroy = mlx5_flow_destroy,
 418         .flush = mlx5_flow_flush,
 419 #ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT
 420         .query = mlx5_flow_query,
 421 #else
 422         .query = NULL,
 423 #endif
 424         .isolate = mlx5_flow_isolate,
 425 };
 426
 427 /* Convert FDIR request to Generic flow. */
 428 struct mlx5_fdir {
 429         struct rte_flow_attr attr;
 430         struct rte_flow_action actions[2];
 431         struct rte_flow_item items[4];
 432         struct rte_flow_item_eth l2;
 433         struct rte_flow_item_eth l2_mask;
 434         union {
 435                 struct rte_flow_item_ipv4 ipv4;
 436                 struct rte_flow_item_ipv6 ipv6;
 437         } l3;
 438         union {
 439                 struct rte_flow_item_udp udp;
 440                 struct rte_flow_item_tcp tcp;
 441         } l4;
 442         struct rte_flow_action_queue queue;
 443 };
 444
 445 /* Verbs specification header. */
 446 struct ibv_spec_header {
 447         enum ibv_flow_spec_type type;
 448         uint16_t size;
 449 };
 450
 451 /**
 452  * Check support for a given item.
 453  *
 454  * @param item[in]
 455  *   Item specification.
 456  * @param mask[in]
 457  *   Bit-masks covering supported fields to compare with spec, last and mask in
 458  *   \item.
 459  * @param size
 460  *   Bit-Mask size in bytes.
 461  *
 462  * @return
 463  *   0 on success.
 464  */
 465 static int
 466 mlx5_flow_item_validate(const struct rte_flow_item *item,
 467                         const uint8_t *mask, unsigned int size)
 468 {
 469         int ret = 0;
 470
 471         if (!item->spec && (item->mask || item->last))
 472                 return -1;
 473         if (item->spec && !item->mask) {
 474                 unsigned int i;
 475                 const uint8_t *spec = item->spec;
 476
 477                 for (i = 0; i < size; ++i)
 478                         if ((spec[i] | mask[i]) != mask[i])
 479                                 return -1;
 480         }
 481         if (item->last && !item->mask) {
 482                 unsigned int i;
 483                 const uint8_t *spec = item->last;
 484
 485                 for (i = 0; i < size; ++i)
 486                         if ((spec[i] | mask[i]) != mask[i])
 487                                 return -1;
 488         }
 489         if (item->mask) {
 490                 unsigned int i;
 491                 const uint8_t *spec = item->spec;
 492
 493                 for (i = 0; i < size; ++i)
 494                         if ((spec[i] | mask[i]) != mask[i])
 495                                 return -1;
 496         }
 497         if (item->spec && item->last) {
 498                 uint8_t spec[size];
 499                 uint8_t last[size];
 500                 const uint8_t *apply = mask;
 501                 unsigned int i;
 502
 503                 if (item->mask)
 504                         apply = item->mask;
 505                 for (i = 0; i < size; ++i) {
 506                         spec[i] = ((const uint8_t *)item->spec)[i] & apply[i];
 507                         last[i] = ((const uint8_t *)item->last)[i] & apply[i];
 508                 }
 509                 ret = memcmp(spec, last, size);
 510         }
 511         return ret;
 512 }
 513
 514 /**
 515  * Copy the RSS configuration from the user ones, of the rss_conf is null,
 516  * uses the driver one.
 517  *
 518  * @param priv
 519  *   Pointer to private structure.
 520  * @param parser
 521  *   Internal parser structure.
 522  * @param rss_conf
 523  *   User RSS configuration to save.
 524  *
 525  * @return
 526  *   0 on success, errno value on failure.
 527  */
 528 static int
 529 priv_flow_convert_rss_conf(struct priv *priv __rte_unused,
 530                            struct mlx5_flow_parse *parser,
 531                            const struct rte_eth_rss_conf *rss_conf)
 532 {
 533         /*
 534          * This function is also called at the beginning of
 535          * priv_flow_convert_actions() to initialize the parser with the
 536          * device default RSS configuration.
 537          */
 538         if (rss_conf) {
 539                 if (rss_conf->rss_hf & MLX5_RSS_HF_MASK)
 540                         return EINVAL;
 541                 if (rss_conf->rss_key_len != 40)
 542                         return EINVAL;
 543                 if (rss_conf->rss_key_len && rss_conf->rss_key) {
 544                         parser->rss_conf.rss_key_len = rss_conf->rss_key_len;
 545                         memcpy(parser->rss_key, rss_conf->rss_key,
 546                                rss_conf->rss_key_len);
 547                         parser->rss_conf.rss_key = parser->rss_key;
 548                 }
 549                 parser->rss_conf.rss_hf = rss_conf->rss_hf;
 550         }
 551         return 0;
 552 }
 553
 554 /**
 555  * Extract attribute to the parser.
 556  *
 557  * @param priv
 558  *   Pointer to private structure.
 559  * @param[in] attr
 560  *   Flow rule attributes.
 561  * @param[out] error
 562  *   Perform verbose error reporting if not NULL.
 563  * @param[in, out] parser
 564  *   Internal parser structure.
 565  *
 566  * @return
 567  *   0 on success, a negative errno value otherwise and rte_errno is set.
 568  */
 569 static int
 570 priv_flow_convert_attributes(struct priv *priv __rte_unused,
 571                              const struct rte_flow_attr *attr,
 572                              struct rte_flow_error *error,
 573                              struct mlx5_flow_parse *parser __rte_unused)
 574 {
 575         if (attr->group) {
 576                 rte_flow_error_set(error, ENOTSUP,
 577                                    RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
 578                                    NULL,
 579                                    "groups are not supported");
 580                 return -rte_errno;
 581         }
 582         if (attr->priority && attr->priority != MLX5_CTRL_FLOW_PRIORITY) {
 583                 rte_flow_error_set(error, ENOTSUP,
 584                                    RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
 585                                    NULL,
 586                                    "priorities are not supported");
 587                 return -rte_errno;
 588         }
 589         if (attr->egress) {
 590                 rte_flow_error_set(error, ENOTSUP,
 591                                    RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
 592                                    NULL,
 593                                    "egress is not supported");
 594                 return -rte_errno;
 595         }
 596         if (!attr->ingress) {
 597                 rte_flow_error_set(error, ENOTSUP,
 598                                    RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
 599                                    NULL,
 600                                    "only ingress is supported");
 601                 return -rte_errno;
 602         }
 603         return 0;
 604 }
 605
 606 /**
 607  * Extract actions request to the parser.
 608  *
 609  * @param priv
 610  *   Pointer to private structure.
 611  * @param[in] actions
 612  *   Associated actions (list terminated by the END action).
 613  * @param[out] error
 614  *   Perform verbose error reporting if not NULL.
 615  * @param[in, out] parser
 616  *   Internal parser structure.
 617  *
 618  * @return
 619  *   0 on success, a negative errno value otherwise and rte_errno is set.
 620  */
 621 static int
 622 priv_flow_convert_actions(struct priv *priv,
 623                           const struct rte_flow_action actions[],
 624                           struct rte_flow_error *error,
 625                           struct mlx5_flow_parse *parser)
 626 {
 627         /*
 628          * Add default RSS configuration necessary for Verbs to create QP even
 629          * if no RSS is necessary.
 630          */
 631         priv_flow_convert_rss_conf(priv, parser,
 632                                    (const struct rte_eth_rss_conf *)
 633                                    &priv->rss_conf);
 634         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; ++actions) {
 635                 if (actions->type == RTE_FLOW_ACTION_TYPE_VOID) {
 636                         continue;
 637                 } else if (actions->type == RTE_FLOW_ACTION_TYPE_DROP) {
 638                         parser->drop = 1;
 639                 } else if (actions->type == RTE_FLOW_ACTION_TYPE_QUEUE) {
 640                         const struct rte_flow_action_queue *queue =
 641                                 (const struct rte_flow_action_queue *)
 642                                 actions->conf;
 643                         uint16_t n;
 644                         uint16_t found = 0;
 645
 646                         if (!queue || (queue->index > (priv->rxqs_n - 1)))
 647                                 goto exit_action_not_supported;
 648                         for (n = 0; n < parser->queues_n; ++n) {
 649                                 if (parser->queues[n] == queue->index) {
 650                                         found = 1;
 651                                         break;
 652                                 }
 653                         }
 654                         if (parser->queues_n > 1 && !found) {
 655                                 rte_flow_error_set(error, ENOTSUP,
 656                                            RTE_FLOW_ERROR_TYPE_ACTION,
 657                                            actions,
 658                                            "queue action not in RSS queues");
 659                                 return -rte_errno;
 660                         }
 661                         if (!found) {
 662                                 parser->queues_n = 1;
 663                                 parser->queues[0] = queue->index;
 664                         }
 665                 } else if (actions->type == RTE_FLOW_ACTION_TYPE_RSS) {
 666                         const struct rte_flow_action_rss *rss =
 667                                 (const struct rte_flow_action_rss *)
 668                                 actions->conf;
 669                         uint16_t n;
 670
 671                         if (!rss || !rss->num) {
 672                                 rte_flow_error_set(error, EINVAL,
 673                                                    RTE_FLOW_ERROR_TYPE_ACTION,
 674                                                    actions,
 675                                                    "no valid queues");
 676                                 return -rte_errno;
 677                         }
 678                         if (parser->queues_n == 1) {
 679                                 uint16_t found = 0;
 680
 681                                 assert(parser->queues_n);
 682                                 for (n = 0; n < rss->num; ++n) {
 683                                         if (parser->queues[0] ==
 684                                             rss->queue[n]) {
 685                                                 found = 1;
 686                                                 break;
 687                                         }
 688                                 }
 689                                 if (!found) {
 690                                         rte_flow_error_set(error, ENOTSUP,
 691                                                    RTE_FLOW_ERROR_TYPE_ACTION,
 692                                                    actions,
 693                                                    "queue action not in RSS"
 694                                                    " queues");
 695                                         return -rte_errno;
 696                                 }
 697                         }
 698                         for (n = 0; n < rss->num; ++n) {
 699                                 if (rss->queue[n] >= priv->rxqs_n) {
 700                                         rte_flow_error_set(error, EINVAL,
 701                                                    RTE_FLOW_ERROR_TYPE_ACTION,
 702                                                    actions,
 703                                                    "queue id > number of"
 704                                                    " queues");
 705                                         return -rte_errno;
 706                                 }
 707                         }
 708                         for (n = 0; n < rss->num; ++n)
 709                                 parser->queues[n] = rss->queue[n];
 710                         parser->queues_n = rss->num;
 711                         if (priv_flow_convert_rss_conf(priv, parser,
 712                                                        rss->rss_conf)) {
 713                                 rte_flow_error_set(error, EINVAL,
 714                                                    RTE_FLOW_ERROR_TYPE_ACTION,
 715                                                    actions,
 716                                                    "wrong RSS configuration");
 717                                 return -rte_errno;
 718                         }
 719                 } else if (actions->type == RTE_FLOW_ACTION_TYPE_MARK) {
 720                         const struct rte_flow_action_mark *mark =
 721                                 (const struct rte_flow_action_mark *)
 722                                 actions->conf;
 723
 724                         if (!mark) {
 725                                 rte_flow_error_set(error, EINVAL,
 726                                                    RTE_FLOW_ERROR_TYPE_ACTION,
 727                                                    actions,
 728                                                    "mark must be defined");
 729                                 return -rte_errno;
 730                         } else if (mark->id >= MLX5_FLOW_MARK_MAX) {
 731                                 rte_flow_error_set(error, ENOTSUP,
 732                                                    RTE_FLOW_ERROR_TYPE_ACTION,
 733                                                    actions,
 734                                                    "mark must be between 0"
 735                                                    " and 16777199");
 736                                 return -rte_errno;
 737                         }
 738                         parser->mark = 1;
 739                         parser->mark_id = mark->id;
 740                 } else if (actions->type == RTE_FLOW_ACTION_TYPE_FLAG) {
 741                         parser->mark = 1;
 742                 } else if (actions->type == RTE_FLOW_ACTION_TYPE_COUNT &&
 743                            priv->config.flow_counter_en) {
 744                         parser->count = 1;
 745                 } else {
 746                         goto exit_action_not_supported;
 747                 }
 748         }
 749         if (parser->drop && parser->mark)
 750                 parser->mark = 0;
 751         if (!parser->queues_n && !parser->drop) {
 752                 rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_HANDLE,
 753                                    NULL, "no valid action");
 754                 return -rte_errno;
 755         }
 756         return 0;
 757 exit_action_not_supported:
 758         rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION,
 759                            actions, "action not supported");
 760         return -rte_errno;
 761 }
 762
 763 /**
 764  * Validate items.
 765  *
 766  * @param priv
 767  *   Pointer to private structure.
 768  * @param[in] items
 769  *   Pattern specification (list terminated by the END pattern item).
 770  * @param[out] error
 771  *   Perform verbose error reporting if not NULL.
 772  * @param[in, out] parser
 773  *   Internal parser structure.
 774  *
 775  * @return
 776  *   0 on success, a negative errno value otherwise and rte_errno is set.
 777  */
 778 static int
 779 priv_flow_convert_items_validate(struct priv *priv __rte_unused,
 780                                  const struct rte_flow_item items[],
 781                                  struct rte_flow_error *error,
 782                                  struct mlx5_flow_parse *parser)
 783 {
 784         const struct mlx5_flow_items *cur_item = mlx5_flow_items;
 785         unsigned int i;
 786
 787         /* Initialise the offsets to start after verbs attribute. */
 788         for (i = 0; i != hash_rxq_init_n; ++i)
 789                 parser->queue[i].offset = sizeof(struct ibv_flow_attr);
 790         for (; items->type != RTE_FLOW_ITEM_TYPE_END; ++items) {
 791                 const struct mlx5_flow_items *token = NULL;
 792                 unsigned int n;
 793                 int err;
 794
 795                 if (items->type == RTE_FLOW_ITEM_TYPE_VOID)
 796                         continue;
 797                 for (i = 0;
 798                      cur_item->items &&
 799                      cur_item->items[i] != RTE_FLOW_ITEM_TYPE_END;
 800                      ++i) {
 801                         if (cur_item->items[i] == items->type) {
 802                                 token = &mlx5_flow_items[items->type];
 803                                 break;
 804                         }
 805                 }
 806                 if (!token)
 807                         goto exit_item_not_supported;
 808                 cur_item = token;
 809                 err = mlx5_flow_item_validate(items,
 810                                               (const uint8_t *)cur_item->mask,
 811                                               cur_item->mask_sz);
 812                 if (err)
 813                         goto exit_item_not_supported;
 814                 if (items->type == RTE_FLOW_ITEM_TYPE_VXLAN) {
 815                         if (parser->inner) {
 816                                 rte_flow_error_set(error, ENOTSUP,
 817                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 818                                                    items,
 819                                                    "cannot recognize multiple"
 820                                                    " VXLAN encapsulations");
 821                                 return -rte_errno;
 822                         }
 823                         parser->inner = IBV_FLOW_SPEC_INNER;
 824                 }
 825                 if (parser->drop) {
 826                         parser->queue[HASH_RXQ_ETH].offset += cur_item->dst_sz;
 827                 } else {
 828                         for (n = 0; n != hash_rxq_init_n; ++n)
 829                                 parser->queue[n].offset += cur_item->dst_sz;
 830                 }
 831         }
 832         if (parser->drop) {
 833                 parser->queue[HASH_RXQ_ETH].offset +=
 834                         sizeof(struct ibv_flow_spec_action_drop);
 835         }
 836         if (parser->mark) {
 837                 for (i = 0; i != hash_rxq_init_n; ++i)
 838                         parser->queue[i].offset +=
 839                                 sizeof(struct ibv_flow_spec_action_tag);
 840         }
 841         if (parser->count) {
 842                 unsigned int size = sizeof(struct ibv_flow_spec_counter_action);
 843
 844                 for (i = 0; i != hash_rxq_init_n; ++i)
 845                         parser->queue[i].offset += size;
 846         }
 847         return 0;
 848 exit_item_not_supported:
 849         rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM,
 850                            items, "item not supported");
 851         return -rte_errno;
 852 }
 853
 854 /**
 855  * Allocate memory space to store verbs flow attributes.
 856  *
 857  * @param priv
 858  *   Pointer to private structure.
 859  * @param[in] priority
 860  *   Flow priority.
 861  * @param[in] size
 862  *   Amount of byte to allocate.
 863  * @param[out] error
 864  *   Perform verbose error reporting if not NULL.
 865  *
 866  * @return
 867  *   A verbs flow attribute on success, NULL otherwise.
 868  */
 869 static struct ibv_flow_attr *
 870 priv_flow_convert_allocate(struct priv *priv __rte_unused,
 871                            unsigned int priority,
 872                            unsigned int size,
 873                            struct rte_flow_error *error)
 874 {
 875         struct ibv_flow_attr *ibv_attr;
 876
 877         ibv_attr = rte_calloc(__func__, 1, size, 0);
 878         if (!ibv_attr) {
 879                 rte_flow_error_set(error, ENOMEM,
 880                                    RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 881                                    NULL,
 882                                    "cannot allocate verbs spec attributes.");
 883                 return NULL;
 884         }
 885         ibv_attr->priority = priority;
 886         return ibv_attr;
 887 }
 888
 889 /**
 890  * Finalise verbs flow attributes.
 891  *
 892  * @param priv
 893  *   Pointer to private structure.
 894  * @param[in, out] parser
 895  *   Internal parser structure.
 896  */
 897 static void
 898 priv_flow_convert_finalise(struct priv *priv __rte_unused,
 899                            struct mlx5_flow_parse *parser)
 900 {
 901         const unsigned int ipv4 =
 902                 hash_rxq_init[parser->layer].ip_version == MLX5_IPV4;
 903         const enum hash_rxq_type hmin = ipv4 ? HASH_RXQ_TCPV4 : HASH_RXQ_TCPV6;
 904         const enum hash_rxq_type hmax = ipv4 ? HASH_RXQ_IPV4 : HASH_RXQ_IPV6;
 905         const enum hash_rxq_type ohmin = ipv4 ? HASH_RXQ_TCPV6 : HASH_RXQ_TCPV4;
 906         const enum hash_rxq_type ohmax = ipv4 ? HASH_RXQ_IPV6 : HASH_RXQ_IPV4;
 907         const enum hash_rxq_type ip = ipv4 ? HASH_RXQ_IPV4 : HASH_RXQ_IPV6;
 908         unsigned int i;
 909
 910         /* Remove any other flow not matching the pattern. */
 911         if (parser->queues_n == 1) {
 912                 for (i = 0; i != hash_rxq_init_n; ++i) {
 913                         if (i == HASH_RXQ_ETH)
 914                                 continue;
 915                         rte_free(parser->queue[i].ibv_attr);
 916                         parser->queue[i].ibv_attr = NULL;
 917                 }
 918                 return;
 919         }
 920         if (parser->layer == HASH_RXQ_ETH) {
 921                 goto fill;
 922         } else {
 923                 /*
 924                  * This layer becomes useless as the pattern define under
 925                  * layers.
 926                  */
 927                 rte_free(parser->queue[HASH_RXQ_ETH].ibv_attr);
 928                 parser->queue[HASH_RXQ_ETH].ibv_attr = NULL;
 929         }
 930         /* Remove opposite kind of layer e.g. IPv6 if the pattern is IPv4. */
 931         for (i = ohmin; i != (ohmax + 1); ++i) {
 932                 if (!parser->queue[i].ibv_attr)
 933                         continue;
 934                 rte_free(parser->queue[i].ibv_attr);
 935                 parser->queue[i].ibv_attr = NULL;
 936         }
 937         /* Remove impossible flow according to the RSS configuration. */
 938         if (hash_rxq_init[parser->layer].dpdk_rss_hf &
 939             parser->rss_conf.rss_hf) {
 940                 /* Remove any other flow. */
 941                 for (i = hmin; i != (hmax + 1); ++i) {
 942                         if ((i == parser->layer) ||
 943                              (!parser->queue[i].ibv_attr))
 944                                 continue;
 945                         rte_free(parser->queue[i].ibv_attr);
 946                         parser->queue[i].ibv_attr = NULL;
 947                 }
 948         } else  if (!parser->queue[ip].ibv_attr) {
 949                 /* no RSS possible with the current configuration. */
 950                 parser->queues_n = 1;
 951                 return;
 952         }
 953 fill:
 954         /*
 955          * Fill missing layers in verbs specifications, or compute the correct
 956          * offset to allocate the memory space for the attributes and
 957          * specifications.
 958          */
 959         for (i = 0; i != hash_rxq_init_n - 1; ++i) {
 960                 union {
 961                         struct ibv_flow_spec_ipv4_ext ipv4;
 962                         struct ibv_flow_spec_ipv6 ipv6;
 963                         struct ibv_flow_spec_tcp_udp udp_tcp;
 964                 } specs;
 965                 void *dst;
 966                 uint16_t size;
 967
 968                 if (i == parser->layer)
 969                         continue;
 970                 if (parser->layer == HASH_RXQ_ETH) {
 971                         if (hash_rxq_init[i].ip_version == MLX5_IPV4) {
 972                                 size = sizeof(struct ibv_flow_spec_ipv4_ext);
 973                                 specs.ipv4 = (struct ibv_flow_spec_ipv4_ext){
 974                                         .type = IBV_FLOW_SPEC_IPV4_EXT,
 975                                         .size = size,
 976                                 };
 977                         } else {
 978                                 size = sizeof(struct ibv_flow_spec_ipv6);
 979                                 specs.ipv6 = (struct ibv_flow_spec_ipv6){
 980                                         .type = IBV_FLOW_SPEC_IPV6,
 981                                         .size = size,
 982                                 };
 983                         }
 984                         if (parser->queue[i].ibv_attr) {
 985                                 dst = (void *)((uintptr_t)
 986                                                parser->queue[i].ibv_attr +
 987                                                parser->queue[i].offset);
 988                                 memcpy(dst, &specs, size);
 989                                 ++parser->queue[i].ibv_attr->num_of_specs;
 990                         }
 991                         parser->queue[i].offset += size;
 992                 }
 993                 if ((i == HASH_RXQ_UDPV4) || (i == HASH_RXQ_TCPV4) ||
 994                     (i == HASH_RXQ_UDPV6) || (i == HASH_RXQ_TCPV6)) {
 995                         size = sizeof(struct ibv_flow_spec_tcp_udp);
 996                         specs.udp_tcp = (struct ibv_flow_spec_tcp_udp) {
 997                                 .type = ((i == HASH_RXQ_UDPV4 ||
 998                                           i == HASH_RXQ_UDPV6) ?
 999                                          IBV_FLOW_SPEC_UDP :
1000                                          IBV_FLOW_SPEC_TCP),
1001                                 .size = size,
1002                         };
1003                         if (parser->queue[i].ibv_attr) {
1004                                 dst = (void *)((uintptr_t)
1005                                                parser->queue[i].ibv_attr +
1006                                                parser->queue[i].offset);
1007                                 memcpy(dst, &specs, size);
1008                                 ++parser->queue[i].ibv_attr->num_of_specs;
1009                         }
1010                         parser->queue[i].offset += size;
1011                 }
1012         }
1013 }
1014
1015 /**
1016  * Validate and convert a flow supported by the NIC.
1017  *
1018  * @param priv
1019  *   Pointer to private structure.
1020  * @param[in] attr
1021  *   Flow rule attributes.
1022  * @param[in] pattern
1023  *   Pattern specification (list terminated by the END pattern item).
1024  * @param[in] actions
1025  *   Associated actions (list terminated by the END action).
1026  * @param[out] error
1027  *   Perform verbose error reporting if not NULL.
1028  * @param[in, out] parser
1029  *   Internal parser structure.
1030  *
1031  * @return
1032  *   0 on success, a negative errno value otherwise and rte_errno is set.
1033  */
1034 static int
1035 priv_flow_convert(struct priv *priv,
1036                   const struct rte_flow_attr *attr,
1037                   const struct rte_flow_item items[],
1038                   const struct rte_flow_action actions[],
1039                   struct rte_flow_error *error,
1040                   struct mlx5_flow_parse *parser)
1041 {
1042         const struct mlx5_flow_items *cur_item = mlx5_flow_items;
1043         unsigned int i;
1044         int ret;
1045
1046         /* First step. Validate the attributes, items and actions. */
1047         *parser = (struct mlx5_flow_parse){
1048                 .create = parser->create,
1049                 .layer = HASH_RXQ_ETH,
1050                 .mark_id = MLX5_FLOW_MARK_DEFAULT,
1051         };
1052         ret = priv_flow_convert_attributes(priv, attr, error, parser);
1053         if (ret)
1054                 return ret;
1055         ret = priv_flow_convert_actions(priv, actions, error, parser);
1056         if (ret)
1057                 return ret;
1058         ret = priv_flow_convert_items_validate(priv, items, error, parser);
1059         if (ret)
1060                 return ret;
1061         priv_flow_convert_finalise(priv, parser);
1062         /*
1063          * Second step.
1064          * Allocate the memory space to store verbs specifications.
1065          */
1066         if (parser->drop) {
1067                 unsigned int priority =
1068                         attr->priority +
1069                         hash_rxq_init[HASH_RXQ_ETH].flow_priority;
1070                 unsigned int offset = parser->queue[HASH_RXQ_ETH].offset;
1071
1072                 parser->queue[HASH_RXQ_ETH].ibv_attr =
1073                         priv_flow_convert_allocate(priv, priority,
1074                                                    offset, error);
1075                 if (!parser->queue[HASH_RXQ_ETH].ibv_attr)
1076                         return ENOMEM;
1077                 parser->queue[HASH_RXQ_ETH].offset =
1078                         sizeof(struct ibv_flow_attr);
1079         } else {
1080                 for (i = 0; i != hash_rxq_init_n; ++i) {
1081                         unsigned int priority =
1082                                 attr->priority +
1083                                 hash_rxq_init[i].flow_priority;
1084                         unsigned int offset;
1085
1086                         if (!(parser->rss_conf.rss_hf &
1087                               hash_rxq_init[i].dpdk_rss_hf) &&
1088                             (i != HASH_RXQ_ETH))
1089                                 continue;
1090                         offset = parser->queue[i].offset;
1091                         parser->queue[i].ibv_attr =
1092                                 priv_flow_convert_allocate(priv, priority,
1093                                                            offset, error);
1094                         if (!parser->queue[i].ibv_attr)
1095                                 goto exit_enomem;
1096                         parser->queue[i].offset = sizeof(struct ibv_flow_attr);
1097                 }
1098         }
1099         /* Third step. Conversion parse, fill the specifications. */
1100         parser->inner = 0;
1101         for (; items->type != RTE_FLOW_ITEM_TYPE_END; ++items) {
1102                 if (items->type == RTE_FLOW_ITEM_TYPE_VOID)
1103                         continue;
1104                 cur_item = &mlx5_flow_items[items->type];
1105                 ret = cur_item->convert(items,
1106                                         (cur_item->default_mask ?
1107                                          cur_item->default_mask :
1108                                          cur_item->mask),
1109                                         parser);
1110                 if (ret) {
1111                         rte_flow_error_set(error, ret,
1112                                            RTE_FLOW_ERROR_TYPE_ITEM,
1113                                            items, "item not supported");
1114                         goto exit_free;
1115                 }
1116         }
1117         if (parser->mark)
1118                 mlx5_flow_create_flag_mark(parser, parser->mark_id);
1119         if (parser->count && parser->create) {
1120                 mlx5_flow_create_count(priv, parser);
1121                 if (!parser->cs)
1122                         goto exit_count_error;
1123         }
1124         /*
1125          * Last step. Complete missing specification to reach the RSS
1126          * configuration.
1127          */
1128         if (!parser->drop) {
1129                 priv_flow_convert_finalise(priv, parser);
1130         } else {
1131                 parser->queue[HASH_RXQ_ETH].ibv_attr->priority =
1132                         attr->priority +
1133                         hash_rxq_init[parser->layer].flow_priority;
1134         }
1135 exit_free:
1136         /* Only verification is expected, all resources should be released. */
1137         if (!parser->create) {
1138                 for (i = 0; i != hash_rxq_init_n; ++i) {
1139                         if (parser->queue[i].ibv_attr) {
1140                                 rte_free(parser->queue[i].ibv_attr);
1141                                 parser->queue[i].ibv_attr = NULL;
1142                         }
1143                 }
1144         }
1145         return ret;
1146 exit_enomem:
1147         for (i = 0; i != hash_rxq_init_n; ++i) {
1148                 if (parser->queue[i].ibv_attr) {
1149                         rte_free(parser->queue[i].ibv_attr);
1150                         parser->queue[i].ibv_attr = NULL;
1151                 }
1152         }
1153         rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1154                            NULL, "cannot allocate verbs spec attributes.");
1155         return ret;
1156 exit_count_error:
1157         rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1158                            NULL, "cannot create counter.");
1159         return rte_errno;
1160 }
1161
1162 /**
1163  * Copy the specification created into the flow.
1164  *
1165  * @param parser
1166  *   Internal parser structure.
1167  * @param src
1168  *   Create specification.
1169  * @param size
1170  *   Size in bytes of the specification to copy.
1171  */
1172 static void
1173 mlx5_flow_create_copy(struct mlx5_flow_parse *parser, void *src,
1174                       unsigned int size)
1175 {
1176         unsigned int i;
1177         void *dst;
1178
1179         for (i = 0; i != hash_rxq_init_n; ++i) {
1180                 if (!parser->queue[i].ibv_attr)
1181                         continue;
1182                 /* Specification must be the same l3 type or none. */
1183                 if (parser->layer == HASH_RXQ_ETH ||
1184                     (hash_rxq_init[parser->layer].ip_version ==
1185                      hash_rxq_init[i].ip_version) ||
1186                     (hash_rxq_init[i].ip_version == 0)) {
1187                         dst = (void *)((uintptr_t)parser->queue[i].ibv_attr +
1188                                         parser->queue[i].offset);
1189                         memcpy(dst, src, size);
1190                         ++parser->queue[i].ibv_attr->num_of_specs;
1191                         parser->queue[i].offset += size;
1192                 }
1193         }
1194 }
1195
1196 /**
1197  * Convert Ethernet item to Verbs specification.
1198  *
1199  * @param item[in]
1200  *   Item specification.
1201  * @param default_mask[in]
1202  *   Default bit-masks to use when item->mask is not provided.
1203  * @param data[in, out]
1204  *   User structure.
1205  */
1206 static int
1207 mlx5_flow_create_eth(const struct rte_flow_item *item,
1208                      const void *default_mask,
1209                      void *data)
1210 {
1211         const struct rte_flow_item_eth *spec = item->spec;
1212         const struct rte_flow_item_eth *mask = item->mask;
1213         struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data;
1214         const unsigned int eth_size = sizeof(struct ibv_flow_spec_eth);
1215         struct ibv_flow_spec_eth eth = {
1216                 .type = parser->inner | IBV_FLOW_SPEC_ETH,
1217                 .size = eth_size,
1218         };
1219
1220         /* Don't update layer for the inner pattern. */
1221         if (!parser->inner)
1222                 parser->layer = HASH_RXQ_ETH;
1223         if (spec) {
1224                 unsigned int i;
1225
1226                 if (!mask)
1227                         mask = default_mask;
1228                 memcpy(&eth.val.dst_mac, spec->dst.addr_bytes, ETHER_ADDR_LEN);
1229                 memcpy(&eth.val.src_mac, spec->src.addr_bytes, ETHER_ADDR_LEN);
1230                 eth.val.ether_type = spec->type;
1231                 memcpy(&eth.mask.dst_mac, mask->dst.addr_bytes, ETHER_ADDR_LEN);
1232                 memcpy(&eth.mask.src_mac, mask->src.addr_bytes, ETHER_ADDR_LEN);
1233                 eth.mask.ether_type = mask->type;
1234                 /* Remove unwanted bits from values. */
1235                 for (i = 0; i < ETHER_ADDR_LEN; ++i) {
1236                         eth.val.dst_mac[i] &= eth.mask.dst_mac[i];
1237                         eth.val.src_mac[i] &= eth.mask.src_mac[i];
1238                 }
1239                 eth.val.ether_type &= eth.mask.ether_type;
1240         }
1241         mlx5_flow_create_copy(parser, &eth, eth_size);
1242         return 0;
1243 }
1244
1245 /**
1246  * Convert VLAN item to Verbs specification.
1247  *
1248  * @param item[in]
1249  *   Item specification.
1250  * @param default_mask[in]
1251  *   Default bit-masks to use when item->mask is not provided.
1252  * @param data[in, out]
1253  *   User structure.
1254  */
1255 static int
1256 mlx5_flow_create_vlan(const struct rte_flow_item *item,
1257                       const void *default_mask,
1258                       void *data)
1259 {
1260         const struct rte_flow_item_vlan *spec = item->spec;
1261         const struct rte_flow_item_vlan *mask = item->mask;
1262         struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data;
1263         struct ibv_flow_spec_eth *eth;
1264         const unsigned int eth_size = sizeof(struct ibv_flow_spec_eth);
1265
1266         if (spec) {
1267                 unsigned int i;
1268                 if (!mask)
1269                         mask = default_mask;
1270
1271                 for (i = 0; i != hash_rxq_init_n; ++i) {
1272                         if (!parser->queue[i].ibv_attr)
1273                                 continue;
1274
1275                         eth = (void *)((uintptr_t)parser->queue[i].ibv_attr +
1276                                        parser->queue[i].offset - eth_size);
1277                         eth->val.vlan_tag = spec->tci;
1278                         eth->mask.vlan_tag = mask->tci;
1279                         eth->val.vlan_tag &= eth->mask.vlan_tag;
1280                 }
1281         }
1282         return 0;
1283 }
1284
1285 /**
1286  * Convert IPv4 item to Verbs specification.
1287  *
1288  * @param item[in]
1289  *   Item specification.
1290  * @param default_mask[in]
1291  *   Default bit-masks to use when item->mask is not provided.
1292  * @param data[in, out]
1293  *   User structure.
1294  */
1295 static int
1296 mlx5_flow_create_ipv4(const struct rte_flow_item *item,
1297                       const void *default_mask,
1298                       void *data)
1299 {
1300         const struct rte_flow_item_ipv4 *spec = item->spec;
1301         const struct rte_flow_item_ipv4 *mask = item->mask;
1302         struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data;
1303         unsigned int ipv4_size = sizeof(struct ibv_flow_spec_ipv4_ext);
1304         struct ibv_flow_spec_ipv4_ext ipv4 = {
1305                 .type = parser->inner | IBV_FLOW_SPEC_IPV4_EXT,
1306                 .size = ipv4_size,
1307         };
1308
1309         /* Don't update layer for the inner pattern. */
1310         if (!parser->inner)
1311                 parser->layer = HASH_RXQ_IPV4;
1312         if (spec) {
1313                 if (!mask)
1314                         mask = default_mask;
1315                 ipv4.val = (struct ibv_flow_ipv4_ext_filter){
1316                         .src_ip = spec->hdr.src_addr,
1317                         .dst_ip = spec->hdr.dst_addr,
1318                         .proto = spec->hdr.next_proto_id,
1319                         .tos = spec->hdr.type_of_service,
1320                 };
1321                 ipv4.mask = (struct ibv_flow_ipv4_ext_filter){
1322                         .src_ip = mask->hdr.src_addr,
1323                         .dst_ip = mask->hdr.dst_addr,
1324                         .proto = mask->hdr.next_proto_id,
1325                         .tos = mask->hdr.type_of_service,
1326                 };
1327                 /* Remove unwanted bits from values. */
1328                 ipv4.val.src_ip &= ipv4.mask.src_ip;
1329                 ipv4.val.dst_ip &= ipv4.mask.dst_ip;
1330                 ipv4.val.proto &= ipv4.mask.proto;
1331                 ipv4.val.tos &= ipv4.mask.tos;
1332         }
1333         mlx5_flow_create_copy(parser, &ipv4, ipv4_size);
1334         return 0;
1335 }
1336
1337 /**
1338  * Convert IPv6 item to Verbs specification.
1339  *
1340  * @param item[in]
1341  *   Item specification.
1342  * @param default_mask[in]
1343  *   Default bit-masks to use when item->mask is not provided.
1344  * @param data[in, out]
1345  *   User structure.
1346  */
1347 static int
1348 mlx5_flow_create_ipv6(const struct rte_flow_item *item,
1349                       const void *default_mask,
1350                       void *data)
1351 {
1352         const struct rte_flow_item_ipv6 *spec = item->spec;
1353         const struct rte_flow_item_ipv6 *mask = item->mask;
1354         struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data;
1355         unsigned int ipv6_size = sizeof(struct ibv_flow_spec_ipv6);
1356         struct ibv_flow_spec_ipv6 ipv6 = {
1357                 .type = parser->inner | IBV_FLOW_SPEC_IPV6,
1358                 .size = ipv6_size,
1359         };
1360
1361         /* Don't update layer for the inner pattern. */
1362         if (!parser->inner)
1363                 parser->layer = HASH_RXQ_IPV6;
1364         if (spec) {
1365                 unsigned int i;
1366                 uint32_t vtc_flow_val;
1367                 uint32_t vtc_flow_mask;
1368
1369                 if (!mask)
1370                         mask = default_mask;
1371                 memcpy(&ipv6.val.src_ip, spec->hdr.src_addr,
1372                        RTE_DIM(ipv6.val.src_ip));
1373                 memcpy(&ipv6.val.dst_ip, spec->hdr.dst_addr,
1374                        RTE_DIM(ipv6.val.dst_ip));
1375                 memcpy(&ipv6.mask.src_ip, mask->hdr.src_addr,
1376                        RTE_DIM(ipv6.mask.src_ip));
1377                 memcpy(&ipv6.mask.dst_ip, mask->hdr.dst_addr,
1378                        RTE_DIM(ipv6.mask.dst_ip));
1379                 vtc_flow_val = rte_be_to_cpu_32(spec->hdr.vtc_flow);
1380                 vtc_flow_mask = rte_be_to_cpu_32(mask->hdr.vtc_flow);
1381                 ipv6.val.flow_label =
1382                         rte_cpu_to_be_32((vtc_flow_val & IPV6_HDR_FL_MASK) >>
1383                                          IPV6_HDR_FL_SHIFT);
1384                 ipv6.val.traffic_class = (vtc_flow_val & IPV6_HDR_TC_MASK) >>
1385                                          IPV6_HDR_TC_SHIFT;
1386                 ipv6.val.next_hdr = spec->hdr.proto;
1387                 ipv6.val.hop_limit = spec->hdr.hop_limits;
1388                 ipv6.mask.flow_label =
1389                         rte_cpu_to_be_32((vtc_flow_mask & IPV6_HDR_FL_MASK) >>
1390                                          IPV6_HDR_FL_SHIFT);
1391                 ipv6.mask.traffic_class = (vtc_flow_mask & IPV6_HDR_TC_MASK) >>
1392                                           IPV6_HDR_TC_SHIFT;
1393                 ipv6.mask.next_hdr = mask->hdr.proto;
1394                 ipv6.mask.hop_limit = mask->hdr.hop_limits;
1395                 /* Remove unwanted bits from values. */
1396                 for (i = 0; i < RTE_DIM(ipv6.val.src_ip); ++i) {
1397                         ipv6.val.src_ip[i] &= ipv6.mask.src_ip[i];
1398                         ipv6.val.dst_ip[i] &= ipv6.mask.dst_ip[i];
1399                 }
1400                 ipv6.val.flow_label &= ipv6.mask.flow_label;
1401                 ipv6.val.traffic_class &= ipv6.mask.traffic_class;
1402                 ipv6.val.next_hdr &= ipv6.mask.next_hdr;
1403                 ipv6.val.hop_limit &= ipv6.mask.hop_limit;
1404         }
1405         mlx5_flow_create_copy(parser, &ipv6, ipv6_size);
1406         return 0;
1407 }
1408
1409 /**
1410  * Convert UDP item to Verbs specification.
1411  *
1412  * @param item[in]
1413  *   Item specification.
1414  * @param default_mask[in]
1415  *   Default bit-masks to use when item->mask is not provided.
1416  * @param data[in, out]
1417  *   User structure.
1418  */
1419 static int
1420 mlx5_flow_create_udp(const struct rte_flow_item *item,
1421                      const void *default_mask,
1422                      void *data)
1423 {
1424         const struct rte_flow_item_udp *spec = item->spec;
1425         const struct rte_flow_item_udp *mask = item->mask;
1426         struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data;
1427         unsigned int udp_size = sizeof(struct ibv_flow_spec_tcp_udp);
1428         struct ibv_flow_spec_tcp_udp udp = {
1429                 .type = parser->inner | IBV_FLOW_SPEC_UDP,
1430                 .size = udp_size,
1431         };
1432
1433         /* Don't update layer for the inner pattern. */
1434         if (!parser->inner) {
1435                 if (parser->layer == HASH_RXQ_IPV4)
1436                         parser->layer = HASH_RXQ_UDPV4;
1437                 else
1438                         parser->layer = HASH_RXQ_UDPV6;
1439         }
1440         if (spec) {
1441                 if (!mask)
1442                         mask = default_mask;
1443                 udp.val.dst_port = spec->hdr.dst_port;
1444                 udp.val.src_port = spec->hdr.src_port;
1445                 udp.mask.dst_port = mask->hdr.dst_port;
1446                 udp.mask.src_port = mask->hdr.src_port;
1447                 /* Remove unwanted bits from values. */
1448                 udp.val.src_port &= udp.mask.src_port;
1449                 udp.val.dst_port &= udp.mask.dst_port;
1450         }
1451         mlx5_flow_create_copy(parser, &udp, udp_size);
1452         return 0;
1453 }
1454
1455 /**
1456  * Convert TCP item to Verbs specification.
1457  *
1458  * @param item[in]
1459  *   Item specification.
1460  * @param default_mask[in]
1461  *   Default bit-masks to use when item->mask is not provided.
1462  * @param data[in, out]
1463  *   User structure.
1464  */
1465 static int
1466 mlx5_flow_create_tcp(const struct rte_flow_item *item,
1467                      const void *default_mask,
1468                      void *data)
1469 {
1470         const struct rte_flow_item_tcp *spec = item->spec;
1471         const struct rte_flow_item_tcp *mask = item->mask;
1472         struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data;
1473         unsigned int tcp_size = sizeof(struct ibv_flow_spec_tcp_udp);
1474         struct ibv_flow_spec_tcp_udp tcp = {
1475                 .type = parser->inner | IBV_FLOW_SPEC_TCP,
1476                 .size = tcp_size,
1477         };
1478
1479         /* Don't update layer for the inner pattern. */
1480         if (!parser->inner) {
1481                 if (parser->layer == HASH_RXQ_IPV4)
1482                         parser->layer = HASH_RXQ_TCPV4;
1483                 else
1484                         parser->layer = HASH_RXQ_TCPV6;
1485         }
1486         if (spec) {
1487                 if (!mask)
1488                         mask = default_mask;
1489                 tcp.val.dst_port = spec->hdr.dst_port;
1490                 tcp.val.src_port = spec->hdr.src_port;
1491                 tcp.mask.dst_port = mask->hdr.dst_port;
1492                 tcp.mask.src_port = mask->hdr.src_port;
1493                 /* Remove unwanted bits from values. */
1494                 tcp.val.src_port &= tcp.mask.src_port;
1495                 tcp.val.dst_port &= tcp.mask.dst_port;
1496         }
1497         mlx5_flow_create_copy(parser, &tcp, tcp_size);
1498         return 0;
1499 }
1500
1501 /**
1502  * Convert VXLAN item to Verbs specification.
1503  *
1504  * @param item[in]
1505  *   Item specification.
1506  * @param default_mask[in]
1507  *   Default bit-masks to use when item->mask is not provided.
1508  * @param data[in, out]
1509  *   User structure.
1510  */
1511 static int
1512 mlx5_flow_create_vxlan(const struct rte_flow_item *item,
1513                        const void *default_mask,
1514                        void *data)
1515 {
1516         const struct rte_flow_item_vxlan *spec = item->spec;
1517         const struct rte_flow_item_vxlan *mask = item->mask;
1518         struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data;
1519         unsigned int size = sizeof(struct ibv_flow_spec_tunnel);
1520         struct ibv_flow_spec_tunnel vxlan = {
1521                 .type = parser->inner | IBV_FLOW_SPEC_VXLAN_TUNNEL,
1522                 .size = size,
1523         };
1524         union vni {
1525                 uint32_t vlan_id;
1526                 uint8_t vni[4];
1527         } id;
1528
1529         id.vni[0] = 0;
1530         parser->inner = IBV_FLOW_SPEC_INNER;
1531         if (spec) {
1532                 if (!mask)
1533                         mask = default_mask;
1534                 memcpy(&id.vni[1], spec->vni, 3);
1535                 vxlan.val.tunnel_id = id.vlan_id;
1536                 memcpy(&id.vni[1], mask->vni, 3);
1537                 vxlan.mask.tunnel_id = id.vlan_id;
1538                 /* Remove unwanted bits from values. */
1539                 vxlan.val.tunnel_id &= vxlan.mask.tunnel_id;
1540         }
1541         /*
1542          * Tunnel id 0 is equivalent as not adding a VXLAN layer, if only this
1543          * layer is defined in the Verbs specification it is interpreted as
1544          * wildcard and all packets will match this rule, if it follows a full
1545          * stack layer (ex: eth / ipv4 / udp), all packets matching the layers
1546          * before will also match this rule.
1547          * To avoid such situation, VNI 0 is currently refused.
1548          */
1549         if (!vxlan.val.tunnel_id)
1550                 return EINVAL;
1551         mlx5_flow_create_copy(parser, &vxlan, size);
1552         return 0;
1553 }
1554
1555 /**
1556  * Convert mark/flag action to Verbs specification.
1557  *
1558  * @param parser
1559  *   Internal parser structure.
1560  * @param mark_id
1561  *   Mark identifier.
1562  */
1563 static int
1564 mlx5_flow_create_flag_mark(struct mlx5_flow_parse *parser, uint32_t mark_id)
1565 {
1566         unsigned int size = sizeof(struct ibv_flow_spec_action_tag);
1567         struct ibv_flow_spec_action_tag tag = {
1568                 .type = IBV_FLOW_SPEC_ACTION_TAG,
1569                 .size = size,
1570                 .tag_id = mlx5_flow_mark_set(mark_id),
1571         };
1572
1573         assert(parser->mark);
1574         mlx5_flow_create_copy(parser, &tag, size);
1575         return 0;
1576 }
1577
1578 /**
1579  * Convert count action to Verbs specification.
1580  *
1581  * @param priv
1582  *   Pointer to private structure.
1583  * @param parser
1584  *   Pointer to MLX5 flow parser structure.
1585  *
1586  * @return
1587  *   0 on success, errno value on failure.
1588  */
1589 static int
1590 mlx5_flow_create_count(struct priv *priv __rte_unused,
1591                        struct mlx5_flow_parse *parser __rte_unused)
1592 {
1593 #ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT
1594         unsigned int size = sizeof(struct ibv_flow_spec_counter_action);
1595         struct ibv_counter_set_init_attr init_attr = {0};
1596         struct ibv_flow_spec_counter_action counter = {
1597                 .type = IBV_FLOW_SPEC_ACTION_COUNT,
1598                 .size = size,
1599                 .counter_set_handle = 0,
1600         };
1601
1602         init_attr.counter_set_id = 0;
1603         parser->cs = mlx5_glue->create_counter_set(priv->ctx, &init_attr);
1604         if (!parser->cs)
1605                 return EINVAL;
1606         counter.counter_set_handle = parser->cs->handle;
1607         mlx5_flow_create_copy(parser, &counter, size);
1608 #endif
1609         return 0;
1610 }
1611
1612 /**
1613  * Complete flow rule creation with a drop queue.
1614  *
1615  * @param priv
1616  *   Pointer to private structure.
1617  * @param parser
1618  *   Internal parser structure.
1619  * @param flow
1620  *   Pointer to the rte_flow.
1621  * @param[out] error
1622  *   Perform verbose error reporting if not NULL.
1623  *
1624  * @return
1625  *   0 on success, errno value on failure.
1626  */
1627 static int
1628 priv_flow_create_action_queue_drop(struct priv *priv,
1629                                    struct mlx5_flow_parse *parser,
1630                                    struct rte_flow *flow,
1631                                    struct rte_flow_error *error)
1632 {
1633         struct ibv_flow_spec_action_drop *drop;
1634         unsigned int size = sizeof(struct ibv_flow_spec_action_drop);
1635         int err = 0;
1636
1637         assert(priv->pd);
1638         assert(priv->ctx);
1639         flow->drop = 1;
1640         drop = (void *)((uintptr_t)parser->queue[HASH_RXQ_ETH].ibv_attr +
1641                         parser->queue[HASH_RXQ_ETH].offset);
1642         *drop = (struct ibv_flow_spec_action_drop){
1643                         .type = IBV_FLOW_SPEC_ACTION_DROP,
1644                         .size = size,
1645         };
1646         ++parser->queue[HASH_RXQ_ETH].ibv_attr->num_of_specs;
1647         parser->queue[HASH_RXQ_ETH].offset += size;
1648         flow->frxq[HASH_RXQ_ETH].ibv_attr =
1649                 parser->queue[HASH_RXQ_ETH].ibv_attr;
1650         if (parser->count)
1651                 flow->cs = parser->cs;
1652         if (!priv->dev->data->dev_started)
1653                 return 0;
1654         parser->queue[HASH_RXQ_ETH].ibv_attr = NULL;
1655         flow->frxq[HASH_RXQ_ETH].ibv_flow =
1656                 mlx5_glue->create_flow(priv->flow_drop_queue->qp,
1657                                        flow->frxq[HASH_RXQ_ETH].ibv_attr);
1658         if (!flow->frxq[HASH_RXQ_ETH].ibv_flow) {
1659                 rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE,
1660                                    NULL, "flow rule creation failure");
1661                 err = ENOMEM;
1662                 goto error;
1663         }
1664         return 0;
1665 error:
1666         assert(flow);
1667         if (flow->frxq[HASH_RXQ_ETH].ibv_flow) {
1668                 claim_zero(mlx5_glue->destroy_flow
1669                            (flow->frxq[HASH_RXQ_ETH].ibv_flow));
1670                 flow->frxq[HASH_RXQ_ETH].ibv_flow = NULL;
1671         }
1672         if (flow->frxq[HASH_RXQ_ETH].ibv_attr) {
1673                 rte_free(flow->frxq[HASH_RXQ_ETH].ibv_attr);
1674                 flow->frxq[HASH_RXQ_ETH].ibv_attr = NULL;
1675         }
1676         if (flow->cs) {
1677                 claim_zero(mlx5_glue->destroy_counter_set(flow->cs));
1678                 flow->cs = NULL;
1679                 parser->cs = NULL;
1680         }
1681         return err;
1682 }
1683
1684 /**
1685  * Create hash Rx queues when RSS is enabled.
1686  *
1687  * @param priv
1688  *   Pointer to private structure.
1689  * @param parser
1690  *   Internal parser structure.
1691  * @param flow
1692  *   Pointer to the rte_flow.
1693  * @param[out] error
1694  *   Perform verbose error reporting if not NULL.
1695  *
1696  * @return
1697  *   0 on success, a errno value otherwise and rte_errno is set.
1698  */
1699 static int
1700 priv_flow_create_action_queue_rss(struct priv *priv,
1701                                   struct mlx5_flow_parse *parser,
1702                                   struct rte_flow *flow,
1703                                   struct rte_flow_error *error)
1704 {
1705         unsigned int i;
1706
1707         for (i = 0; i != hash_rxq_init_n; ++i) {
1708                 uint64_t hash_fields;
1709
1710                 if (!parser->queue[i].ibv_attr)
1711                         continue;
1712                 flow->frxq[i].ibv_attr = parser->queue[i].ibv_attr;
1713                 parser->queue[i].ibv_attr = NULL;
1714                 hash_fields = hash_rxq_init[i].hash_fields;
1715                 if (!priv->dev->data->dev_started)
1716                         continue;
1717                 flow->frxq[i].hrxq =
1718                         mlx5_priv_hrxq_get(priv,
1719                                            parser->rss_conf.rss_key,
1720                                            parser->rss_conf.rss_key_len,
1721                                            hash_fields,
1722                                            parser->queues,
1723                                            parser->queues_n);
1724                 if (flow->frxq[i].hrxq)
1725                         continue;
1726                 flow->frxq[i].hrxq =
1727                         mlx5_priv_hrxq_new(priv,
1728                                            parser->rss_conf.rss_key,
1729                                            parser->rss_conf.rss_key_len,
1730                                            hash_fields,
1731                                            parser->queues,
1732                                            parser->queues_n);
1733                 if (!flow->frxq[i].hrxq) {
1734                         rte_flow_error_set(error, ENOMEM,
1735                                            RTE_FLOW_ERROR_TYPE_HANDLE,
1736                                            NULL, "cannot create hash rxq");
1737                         return ENOMEM;
1738                 }
1739         }
1740         return 0;
1741 }
1742
1743 /**
1744  * Complete flow rule creation.
1745  *
1746  * @param priv
1747  *   Pointer to private structure.
1748  * @param parser
1749  *   Internal parser structure.
1750  * @param flow
1751  *   Pointer to the rte_flow.
1752  * @param[out] error
1753  *   Perform verbose error reporting if not NULL.
1754  *
1755  * @return
1756  *   0 on success, a errno value otherwise and rte_errno is set.
1757  */
1758 static int
1759 priv_flow_create_action_queue(struct priv *priv,
1760                               struct mlx5_flow_parse *parser,
1761                               struct rte_flow *flow,
1762                               struct rte_flow_error *error)
1763 {
1764         int err = 0;
1765         unsigned int i;
1766         unsigned int flows_n = 0;
1767
1768         assert(priv->pd);
1769         assert(priv->ctx);
1770         assert(!parser->drop);
1771         err = priv_flow_create_action_queue_rss(priv, parser, flow, error);
1772         if (err)
1773                 goto error;
1774         if (parser->count)
1775                 flow->cs = parser->cs;
1776         if (!priv->dev->data->dev_started)
1777                 return 0;
1778         for (i = 0; i != hash_rxq_init_n; ++i) {
1779                 if (!flow->frxq[i].hrxq)
1780                         continue;
1781                 flow->frxq[i].ibv_flow =
1782                         mlx5_glue->create_flow(flow->frxq[i].hrxq->qp,
1783                                                flow->frxq[i].ibv_attr);
1784                 if (!flow->frxq[i].ibv_flow) {
1785                         rte_flow_error_set(error, ENOMEM,
1786                                            RTE_FLOW_ERROR_TYPE_HANDLE,
1787                                            NULL, "flow rule creation failure");
1788                         err = ENOMEM;
1789                         goto error;
1790                 }
1791                 ++flows_n;
1792                 DEBUG("%p type %d QP %p ibv_flow %p",
1793                       (void *)flow, i,
1794                       (void *)flow->frxq[i].hrxq,
1795                       (void *)flow->frxq[i].ibv_flow);
1796         }
1797         if (!flows_n) {
1798                 rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_HANDLE,
1799                                    NULL, "internal error in flow creation");
1800                 goto error;
1801         }
1802         for (i = 0; i != parser->queues_n; ++i) {
1803                 struct mlx5_rxq_data *q =
1804                         (*priv->rxqs)[parser->queues[i]];
1805
1806                 q->mark |= parser->mark;
1807         }
1808         return 0;
1809 error:
1810         assert(flow);
1811         for (i = 0; i != hash_rxq_init_n; ++i) {
1812                 if (flow->frxq[i].ibv_flow) {
1813                         struct ibv_flow *ibv_flow = flow->frxq[i].ibv_flow;
1814
1815                         claim_zero(mlx5_glue->destroy_flow(ibv_flow));
1816                 }
1817                 if (flow->frxq[i].hrxq)
1818                         mlx5_priv_hrxq_release(priv, flow->frxq[i].hrxq);
1819                 if (flow->frxq[i].ibv_attr)
1820                         rte_free(flow->frxq[i].ibv_attr);
1821         }
1822         if (flow->cs) {
1823                 claim_zero(mlx5_glue->destroy_counter_set(flow->cs));
1824                 flow->cs = NULL;
1825                 parser->cs = NULL;
1826         }
1827         return err;
1828 }
1829
1830 /**
1831  * Convert a flow.
1832  *
1833  * @param priv
1834  *   Pointer to private structure.
1835  * @param list
1836  *   Pointer to a TAILQ flow list.
1837  * @param[in] attr
1838  *   Flow rule attributes.
1839  * @param[in] pattern
1840  *   Pattern specification (list terminated by the END pattern item).
1841  * @param[in] actions
1842  *   Associated actions (list terminated by the END action).
1843  * @param[out] error
1844  *   Perform verbose error reporting if not NULL.
1845  *
1846  * @return
1847  *   A flow on success, NULL otherwise.
1848  */
1849 static struct rte_flow *
1850 priv_flow_create(struct priv *priv,
1851                  struct mlx5_flows *list,
1852                  const struct rte_flow_attr *attr,
1853                  const struct rte_flow_item items[],
1854                  const struct rte_flow_action actions[],
1855                  struct rte_flow_error *error)
1856 {
1857         struct mlx5_flow_parse parser = { .create = 1, };
1858         struct rte_flow *flow = NULL;
1859         unsigned int i;
1860         int err;
1861
1862         err = priv_flow_convert(priv, attr, items, actions, error, &parser);
1863         if (err)
1864                 goto exit;
1865         flow = rte_calloc(__func__, 1,
1866                           sizeof(*flow) + parser.queues_n * sizeof(uint16_t),
1867                           0);
1868         if (!flow) {
1869                 rte_flow_error_set(error, ENOMEM,
1870                                    RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1871                                    NULL,
1872                                    "cannot allocate flow memory");
1873                 return NULL;
1874         }
1875         /* Copy queues configuration. */
1876         flow->queues = (uint16_t (*)[])(flow + 1);
1877         memcpy(flow->queues, parser.queues, parser.queues_n * sizeof(uint16_t));
1878         flow->queues_n = parser.queues_n;
1879         flow->mark = parser.mark;
1880         /* Copy RSS configuration. */
1881         flow->rss_conf = parser.rss_conf;
1882         flow->rss_conf.rss_key = flow->rss_key;
1883         memcpy(flow->rss_key, parser.rss_key, parser.rss_conf.rss_key_len);
1884         /* finalise the flow. */
1885         if (parser.drop)
1886                 err = priv_flow_create_action_queue_drop(priv, &parser, flow,
1887                                                          error);
1888         else
1889                 err = priv_flow_create_action_queue(priv, &parser, flow, error);
1890         if (err)
1891                 goto exit;
1892         TAILQ_INSERT_TAIL(list, flow, next);
1893         DEBUG("Flow created %p", (void *)flow);
1894         return flow;
1895 exit:
1896         ERROR("flow creation error: %s", error->message);
1897         for (i = 0; i != hash_rxq_init_n; ++i) {
1898                 if (parser.queue[i].ibv_attr)
1899                         rte_free(parser.queue[i].ibv_attr);
1900         }
1901         rte_free(flow);
1902         return NULL;
1903 }
1904
1905 /**
1906  * Validate a flow supported by the NIC.
1907  *
1908  * @see rte_flow_validate()
1909  * @see rte_flow_ops
1910  */
1911 int
1912 mlx5_flow_validate(struct rte_eth_dev *dev,
1913                    const struct rte_flow_attr *attr,
1914                    const struct rte_flow_item items[],
1915                    const struct rte_flow_action actions[],
1916                    struct rte_flow_error *error)
1917 {
1918         struct priv *priv = dev->data->dev_private;
1919         int ret;
1920         struct mlx5_flow_parse parser = { .create = 0, };
1921
1922         ret = priv_flow_convert(priv, attr, items, actions, error, &parser);
1923         return ret;
1924 }
1925
1926 /**
1927  * Create a flow.
1928  *
1929  * @see rte_flow_create()
1930  * @see rte_flow_ops
1931  */
1932 struct rte_flow *
1933 mlx5_flow_create(struct rte_eth_dev *dev,
1934                  const struct rte_flow_attr *attr,
1935                  const struct rte_flow_item items[],
1936                  const struct rte_flow_action actions[],
1937                  struct rte_flow_error *error)
1938 {
1939         struct priv *priv = dev->data->dev_private;
1940         struct rte_flow *flow;
1941
1942         flow = priv_flow_create(priv, &priv->flows, attr, items, actions,
1943                                 error);
1944         return flow;
1945 }
1946
1947 /**
1948  * Destroy a flow.
1949  *
1950  * @param priv
1951  *   Pointer to private structure.
1952  * @param list
1953  *   Pointer to a TAILQ flow list.
1954  * @param[in] flow
1955  *   Flow to destroy.
1956  */
1957 static void
1958 priv_flow_destroy(struct priv *priv,
1959                   struct mlx5_flows *list,
1960                   struct rte_flow *flow)
1961 {
1962         unsigned int i;
1963
1964         if (flow->drop || !flow->mark)
1965                 goto free;
1966         for (i = 0; i != flow->queues_n; ++i) {
1967                 struct rte_flow *tmp;
1968                 int mark = 0;
1969
1970                 /*
1971                  * To remove the mark from the queue, the queue must not be
1972                  * present in any other marked flow (RSS or not).
1973                  */
1974                 TAILQ_FOREACH(tmp, list, next) {
1975                         unsigned int j;
1976                         uint16_t *tqs = NULL;
1977                         uint16_t tq_n = 0;
1978
1979                         if (!tmp->mark)
1980                                 continue;
1981                         for (j = 0; j != hash_rxq_init_n; ++j) {
1982                                 if (!tmp->frxq[j].hrxq)
1983                                         continue;
1984                                 tqs = tmp->frxq[j].hrxq->ind_table->queues;
1985                                 tq_n = tmp->frxq[j].hrxq->ind_table->queues_n;
1986                         }
1987                         if (!tq_n)
1988                                 continue;
1989                         for (j = 0; (j != tq_n) && !mark; j++)
1990                                 if (tqs[j] == (*flow->queues)[i])
1991                                         mark = 1;
1992                 }
1993                 (*priv->rxqs)[(*flow->queues)[i]]->mark = mark;
1994         }
1995 free:
1996         if (flow->drop) {
1997                 if (flow->frxq[HASH_RXQ_ETH].ibv_flow)
1998                         claim_zero(mlx5_glue->destroy_flow
1999                                    (flow->frxq[HASH_RXQ_ETH].ibv_flow));
2000                 rte_free(flow->frxq[HASH_RXQ_ETH].ibv_attr);
2001         } else {
2002                 for (i = 0; i != hash_rxq_init_n; ++i) {
2003                         struct mlx5_flow *frxq = &flow->frxq[i];
2004
2005                         if (frxq->ibv_flow)
2006                                 claim_zero(mlx5_glue->destroy_flow
2007                                            (frxq->ibv_flow));
2008                         if (frxq->hrxq)
2009                                 mlx5_priv_hrxq_release(priv, frxq->hrxq);
2010                         if (frxq->ibv_attr)
2011                                 rte_free(frxq->ibv_attr);
2012                 }
2013         }
2014         if (flow->cs) {
2015                 claim_zero(mlx5_glue->destroy_counter_set(flow->cs));
2016                 flow->cs = NULL;
2017         }
2018         TAILQ_REMOVE(list, flow, next);
2019         DEBUG("Flow destroyed %p", (void *)flow);
2020         rte_free(flow);
2021 }
2022
2023 /**
2024  * Destroy all flows.
2025  *
2026  * @param priv
2027  *   Pointer to private structure.
2028  * @param list
2029  *   Pointer to a TAILQ flow list.
2030  */
2031 void
2032 priv_flow_flush(struct priv *priv, struct mlx5_flows *list)
2033 {
2034         while (!TAILQ_EMPTY(list)) {
2035                 struct rte_flow *flow;
2036
2037                 flow = TAILQ_FIRST(list);
2038                 priv_flow_destroy(priv, list, flow);
2039         }
2040 }
2041
2042 /**
2043  * Create drop queue.
2044  *
2045  * @param priv
2046  *   Pointer to private structure.
2047  *
2048  * @return
2049  *   0 on success.
2050  */
2051 int
2052 priv_flow_create_drop_queue(struct priv *priv)
2053 {
2054         struct mlx5_hrxq_drop *fdq = NULL;
2055
2056         assert(priv->pd);
2057         assert(priv->ctx);
2058         fdq = rte_calloc(__func__, 1, sizeof(*fdq), 0);
2059         if (!fdq) {
2060                 WARN("cannot allocate memory for drop queue");
2061                 goto error;
2062         }
2063         fdq->cq = mlx5_glue->create_cq(priv->ctx, 1, NULL, NULL, 0);
2064         if (!fdq->cq) {
2065                 WARN("cannot allocate CQ for drop queue");
2066                 goto error;
2067         }
2068         fdq->wq = mlx5_glue->create_wq
2069                 (priv->ctx,
2070                  &(struct ibv_wq_init_attr){
2071                         .wq_type = IBV_WQT_RQ,
2072                         .max_wr = 1,
2073                         .max_sge = 1,
2074                         .pd = priv->pd,
2075                         .cq = fdq->cq,
2076                  });
2077         if (!fdq->wq) {
2078                 WARN("cannot allocate WQ for drop queue");
2079                 goto error;
2080         }
2081         fdq->ind_table = mlx5_glue->create_rwq_ind_table
2082                 (priv->ctx,
2083                  &(struct ibv_rwq_ind_table_init_attr){
2084                         .log_ind_tbl_size = 0,
2085                         .ind_tbl = &fdq->wq,
2086                         .comp_mask = 0,
2087                  });
2088         if (!fdq->ind_table) {
2089                 WARN("cannot allocate indirection table for drop queue");
2090                 goto error;
2091         }
2092         fdq->qp = mlx5_glue->create_qp_ex
2093                 (priv->ctx,
2094                  &(struct ibv_qp_init_attr_ex){
2095                         .qp_type = IBV_QPT_RAW_PACKET,
2096                         .comp_mask =
2097                                 IBV_QP_INIT_ATTR_PD |
2098                                 IBV_QP_INIT_ATTR_IND_TABLE |
2099                                 IBV_QP_INIT_ATTR_RX_HASH,
2100                         .rx_hash_conf = (struct ibv_rx_hash_conf){
2101                                 .rx_hash_function =
2102                                         IBV_RX_HASH_FUNC_TOEPLITZ,
2103                                 .rx_hash_key_len = rss_hash_default_key_len,
2104                                 .rx_hash_key = rss_hash_default_key,
2105                                 .rx_hash_fields_mask = 0,
2106                                 },
2107                         .rwq_ind_tbl = fdq->ind_table,
2108                         .pd = priv->pd
2109                  });
2110         if (!fdq->qp) {
2111                 WARN("cannot allocate QP for drop queue");
2112                 goto error;
2113         }
2114         priv->flow_drop_queue = fdq;
2115         return 0;
2116 error:
2117         if (fdq->qp)
2118                 claim_zero(mlx5_glue->destroy_qp(fdq->qp));
2119         if (fdq->ind_table)
2120                 claim_zero(mlx5_glue->destroy_rwq_ind_table(fdq->ind_table));
2121         if (fdq->wq)
2122                 claim_zero(mlx5_glue->destroy_wq(fdq->wq));
2123         if (fdq->cq)
2124                 claim_zero(mlx5_glue->destroy_cq(fdq->cq));
2125         if (fdq)
2126                 rte_free(fdq);
2127         priv->flow_drop_queue = NULL;
2128         return -1;
2129 }
2130
2131 /**
2132  * Delete drop queue.
2133  *
2134  * @param priv
2135  *   Pointer to private structure.
2136  */
2137 void
2138 priv_flow_delete_drop_queue(struct priv *priv)
2139 {
2140         struct mlx5_hrxq_drop *fdq = priv->flow_drop_queue;
2141
2142         if (!fdq)
2143                 return;
2144         if (fdq->qp)
2145                 claim_zero(mlx5_glue->destroy_qp(fdq->qp));
2146         if (fdq->ind_table)
2147                 claim_zero(mlx5_glue->destroy_rwq_ind_table(fdq->ind_table));
2148         if (fdq->wq)
2149                 claim_zero(mlx5_glue->destroy_wq(fdq->wq));
2150         if (fdq->cq)
2151                 claim_zero(mlx5_glue->destroy_cq(fdq->cq));
2152         rte_free(fdq);
2153         priv->flow_drop_queue = NULL;
2154 }
2155
2156 /**
2157  * Remove all flows.
2158  *
2159  * @param priv
2160  *   Pointer to private structure.
2161  * @param list
2162  *   Pointer to a TAILQ flow list.
2163  */
2164 void
2165 priv_flow_stop(struct priv *priv, struct mlx5_flows *list)
2166 {
2167         struct rte_flow *flow;
2168
2169         TAILQ_FOREACH_REVERSE(flow, list, mlx5_flows, next) {
2170                 unsigned int i;
2171                 struct mlx5_ind_table_ibv *ind_tbl = NULL;
2172
2173                 if (flow->drop) {
2174                         if (!flow->frxq[HASH_RXQ_ETH].ibv_flow)
2175                                 continue;
2176                         claim_zero(mlx5_glue->destroy_flow
2177                                    (flow->frxq[HASH_RXQ_ETH].ibv_flow));
2178                         flow->frxq[HASH_RXQ_ETH].ibv_flow = NULL;
2179                         DEBUG("Flow %p removed", (void *)flow);
2180                         /* Next flow. */
2181                         continue;
2182                 }
2183                 /* Verify the flow has not already been cleaned. */
2184                 for (i = 0; i != hash_rxq_init_n; ++i) {
2185                         if (!flow->frxq[i].ibv_flow)
2186                                 continue;
2187                         /*
2188                          * Indirection table may be necessary to remove the
2189                          * flags in the Rx queues.
2190                          * This helps to speed-up the process by avoiding
2191                          * another loop.
2192                          */
2193                         ind_tbl = flow->frxq[i].hrxq->ind_table;
2194                         break;
2195                 }
2196                 if (i == hash_rxq_init_n)
2197                         return;
2198                 if (flow->mark) {
2199                         assert(ind_tbl);
2200                         for (i = 0; i != ind_tbl->queues_n; ++i)
2201                                 (*priv->rxqs)[ind_tbl->queues[i]]->mark = 0;
2202                 }
2203                 for (i = 0; i != hash_rxq_init_n; ++i) {
2204                         if (!flow->frxq[i].ibv_flow)
2205                                 continue;
2206                         claim_zero(mlx5_glue->destroy_flow
2207                                    (flow->frxq[i].ibv_flow));
2208                         flow->frxq[i].ibv_flow = NULL;
2209                         mlx5_priv_hrxq_release(priv, flow->frxq[i].hrxq);
2210                         flow->frxq[i].hrxq = NULL;
2211                 }
2212                 DEBUG("Flow %p removed", (void *)flow);
2213         }
2214 }
2215
2216 /**
2217  * Add all flows.
2218  *
2219  * @param priv
2220  *   Pointer to private structure.
2221  * @param list
2222  *   Pointer to a TAILQ flow list.
2223  *
2224  * @return
2225  *   0 on success, a errno value otherwise and rte_errno is set.
2226  */
2227 int
2228 priv_flow_start(struct priv *priv, struct mlx5_flows *list)
2229 {
2230         struct rte_flow *flow;
2231
2232         TAILQ_FOREACH(flow, list, next) {
2233                 unsigned int i;
2234
2235                 if (flow->drop) {
2236                         flow->frxq[HASH_RXQ_ETH].ibv_flow =
2237                                 mlx5_glue->create_flow
2238                                 (priv->flow_drop_queue->qp,
2239                                  flow->frxq[HASH_RXQ_ETH].ibv_attr);
2240                         if (!flow->frxq[HASH_RXQ_ETH].ibv_flow) {
2241                                 DEBUG("Flow %p cannot be applied",
2242                                       (void *)flow);
2243                                 rte_errno = EINVAL;
2244                                 return rte_errno;
2245                         }
2246                         DEBUG("Flow %p applied", (void *)flow);
2247                         /* Next flow. */
2248                         continue;
2249                 }
2250                 for (i = 0; i != hash_rxq_init_n; ++i) {
2251                         if (!flow->frxq[i].ibv_attr)
2252                                 continue;
2253                         flow->frxq[i].hrxq =
2254                                 mlx5_priv_hrxq_get(priv, flow->rss_conf.rss_key,
2255                                                    flow->rss_conf.rss_key_len,
2256                                                    hash_rxq_init[i].hash_fields,
2257                                                    (*flow->queues),
2258                                                    flow->queues_n);
2259                         if (flow->frxq[i].hrxq)
2260                                 goto flow_create;
2261                         flow->frxq[i].hrxq =
2262                                 mlx5_priv_hrxq_new(priv, flow->rss_conf.rss_key,
2263                                                    flow->rss_conf.rss_key_len,
2264                                                    hash_rxq_init[i].hash_fields,
2265                                                    (*flow->queues),
2266                                                    flow->queues_n);
2267                         if (!flow->frxq[i].hrxq) {
2268                                 DEBUG("Flow %p cannot be applied",
2269                                       (void *)flow);
2270                                 rte_errno = EINVAL;
2271                                 return rte_errno;
2272                         }
2273 flow_create:
2274                         flow->frxq[i].ibv_flow =
2275                                 mlx5_glue->create_flow(flow->frxq[i].hrxq->qp,
2276                                                        flow->frxq[i].ibv_attr);
2277                         if (!flow->frxq[i].ibv_flow) {
2278                                 DEBUG("Flow %p cannot be applied",
2279                                       (void *)flow);
2280                                 rte_errno = EINVAL;
2281                                 return rte_errno;
2282                         }
2283                         DEBUG("Flow %p applied", (void *)flow);
2284                 }
2285                 if (!flow->mark)
2286                         continue;
2287                 for (i = 0; i != flow->queues_n; ++i)
2288                         (*priv->rxqs)[(*flow->queues)[i]]->mark = 1;
2289         }
2290         return 0;
2291 }
2292
2293 /**
2294  * Verify the flow list is empty
2295  *
2296  * @param priv
2297  *  Pointer to private structure.
2298  *
2299  * @return the number of flows not released.
2300  */
2301 int
2302 priv_flow_verify(struct priv *priv)
2303 {
2304         struct rte_flow *flow;
2305         int ret = 0;
2306
2307         TAILQ_FOREACH(flow, &priv->flows, next) {
2308                 DEBUG("%p: flow %p still referenced", (void *)priv,
2309                       (void *)flow);
2310                 ++ret;
2311         }
2312         return ret;
2313 }
2314
2315 /**
2316  * Enable a control flow configured from the control plane.
2317  *
2318  * @param dev
2319  *   Pointer to Ethernet device.
2320  * @param eth_spec
2321  *   An Ethernet flow spec to apply.
2322  * @param eth_mask
2323  *   An Ethernet flow mask to apply.
2324  * @param vlan_spec
2325  *   A VLAN flow spec to apply.
2326  * @param vlan_mask
2327  *   A VLAN flow mask to apply.
2328  *
2329  * @return
2330  *   0 on success.
2331  */
2332 int
2333 mlx5_ctrl_flow_vlan(struct rte_eth_dev *dev,
2334                     struct rte_flow_item_eth *eth_spec,
2335                     struct rte_flow_item_eth *eth_mask,
2336                     struct rte_flow_item_vlan *vlan_spec,
2337                     struct rte_flow_item_vlan *vlan_mask)
2338 {
2339         struct priv *priv = dev->data->dev_private;
2340         const struct rte_flow_attr attr = {
2341                 .ingress = 1,
2342                 .priority = MLX5_CTRL_FLOW_PRIORITY,
2343         };
2344         struct rte_flow_item items[] = {
2345                 {
2346                         .type = RTE_FLOW_ITEM_TYPE_ETH,
2347                         .spec = eth_spec,
2348                         .last = NULL,
2349                         .mask = eth_mask,
2350                 },
2351                 {
2352                         .type = (vlan_spec) ? RTE_FLOW_ITEM_TYPE_VLAN :
2353                                 RTE_FLOW_ITEM_TYPE_END,
2354                         .spec = vlan_spec,
2355                         .last = NULL,
2356                         .mask = vlan_mask,
2357                 },
2358                 {
2359                         .type = RTE_FLOW_ITEM_TYPE_END,
2360                 },
2361         };
2362         struct rte_flow_action actions[] = {
2363                 {
2364                         .type = RTE_FLOW_ACTION_TYPE_RSS,
2365                 },
2366                 {
2367                         .type = RTE_FLOW_ACTION_TYPE_END,
2368                 },
2369         };
2370         struct rte_flow *flow;
2371         struct rte_flow_error error;
2372         unsigned int i;
2373         union {
2374                 struct rte_flow_action_rss rss;
2375                 struct {
2376                         const struct rte_eth_rss_conf *rss_conf;
2377                         uint16_t num;
2378                         uint16_t queue[RTE_MAX_QUEUES_PER_PORT];
2379                 } local;
2380         } action_rss;
2381
2382         if (!priv->reta_idx_n)
2383                 return EINVAL;
2384         for (i = 0; i != priv->reta_idx_n; ++i)
2385                 action_rss.local.queue[i] = (*priv->reta_idx)[i];
2386         action_rss.local.rss_conf = &priv->rss_conf;
2387         action_rss.local.num = priv->reta_idx_n;
2388         actions[0].conf = (const void *)&action_rss.rss;
2389         flow = priv_flow_create(priv, &priv->ctrl_flows, &attr, items, actions,
2390                                 &error);
2391         if (!flow)
2392                 return rte_errno;
2393         return 0;
2394 }
2395
2396 /**
2397  * Enable a flow control configured from the control plane.
2398  *
2399  * @param dev
2400  *   Pointer to Ethernet device.
2401  * @param eth_spec
2402  *   An Ethernet flow spec to apply.
2403  * @param eth_mask
2404  *   An Ethernet flow mask to apply.
2405  *
2406  * @return
2407  *   0 on success.
2408  */
2409 int
2410 mlx5_ctrl_flow(struct rte_eth_dev *dev,
2411                struct rte_flow_item_eth *eth_spec,
2412                struct rte_flow_item_eth *eth_mask)
2413 {
2414         return mlx5_ctrl_flow_vlan(dev, eth_spec, eth_mask, NULL, NULL);
2415 }
2416
2417 /**
2418  * Destroy a flow.
2419  *
2420  * @see rte_flow_destroy()
2421  * @see rte_flow_ops
2422  */
2423 int
2424 mlx5_flow_destroy(struct rte_eth_dev *dev,
2425                   struct rte_flow *flow,
2426                   struct rte_flow_error *error __rte_unused)
2427 {
2428         struct priv *priv = dev->data->dev_private;
2429
2430         priv_flow_destroy(priv, &priv->flows, flow);
2431         return 0;
2432 }
2433
2434 /**
2435  * Destroy all flows.
2436  *
2437  * @see rte_flow_flush()
2438  * @see rte_flow_ops
2439  */
2440 int
2441 mlx5_flow_flush(struct rte_eth_dev *dev,
2442                 struct rte_flow_error *error __rte_unused)
2443 {
2444         struct priv *priv = dev->data->dev_private;
2445
2446         priv_flow_flush(priv, &priv->flows);
2447         return 0;
2448 }
2449
2450 #ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT
2451 /**
2452  * Query flow counter.
2453  *
2454  * @param cs
2455  *   the counter set.
2456  * @param counter_value
2457  *   returned data from the counter.
2458  *
2459  * @return
2460  *   0 on success, a errno value otherwise and rte_errno is set.
2461  */
2462 static int
2463 priv_flow_query_count(struct ibv_counter_set *cs,
2464                       struct mlx5_flow_counter_stats *counter_stats,
2465                       struct rte_flow_query_count *query_count,
2466                       struct rte_flow_error *error)
2467 {
2468         uint64_t counters[2];
2469         struct ibv_query_counter_set_attr query_cs_attr = {
2470                 .cs = cs,
2471                 .query_flags = IBV_COUNTER_SET_FORCE_UPDATE,
2472         };
2473         struct ibv_counter_set_data query_out = {
2474                 .out = counters,
2475                 .outlen = 2 * sizeof(uint64_t),
2476         };
2477         int res = mlx5_glue->query_counter_set(&query_cs_attr, &query_out);
2478
2479         if (res) {
2480                 rte_flow_error_set(error, -res,
2481                                    RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
2482                                    NULL,
2483                                    "cannot read counter");
2484                 return -res;
2485         }
2486         query_count->hits_set = 1;
2487         query_count->bytes_set = 1;
2488         query_count->hits = counters[0] - counter_stats->hits;
2489         query_count->bytes = counters[1] - counter_stats->bytes;
2490         if (query_count->reset) {
2491                 counter_stats->hits = counters[0];
2492                 counter_stats->bytes = counters[1];
2493         }
2494         return 0;
2495 }
2496
2497 /**
2498  * Query a flows.
2499  *
2500  * @see rte_flow_query()
2501  * @see rte_flow_ops
2502  */
2503 int
2504 mlx5_flow_query(struct rte_eth_dev *dev __rte_unused,
2505                 struct rte_flow *flow,
2506                 enum rte_flow_action_type action __rte_unused,
2507                 void *data,
2508                 struct rte_flow_error *error)
2509 {
2510         int res = EINVAL;
2511
2512         if (flow->cs) {
2513                 res = priv_flow_query_count(flow->cs,
2514                                         &flow->counter_stats,
2515                                         (struct rte_flow_query_count *)data,
2516                                         error);
2517         } else {
2518                 rte_flow_error_set(error, res,
2519                                    RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
2520                                    NULL,
2521                                    "no counter found for flow");
2522         }
2523         return -res;
2524 }
2525 #endif
2526
2527 /**
2528  * Isolated mode.
2529  *
2530  * @see rte_flow_isolate()
2531  * @see rte_flow_ops
2532  */
2533 int
2534 mlx5_flow_isolate(struct rte_eth_dev *dev,
2535                   int enable,
2536                   struct rte_flow_error *error)
2537 {
2538         struct priv *priv = dev->data->dev_private;
2539
2540         if (dev->data->dev_started) {
2541                 rte_flow_error_set(error, EBUSY,
2542                                    RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
2543                                    NULL,
2544                                    "port must be stopped first");
2545                 return -rte_errno;
2546         }
2547         priv->isolated = !!enable;
2548         if (enable)
2549                 priv->dev->dev_ops = &mlx5_dev_ops_isolate;
2550         else
2551                 priv->dev->dev_ops = &mlx5_dev_ops;
2552         return 0;
2553 }
2554
2555 /**
2556  * Convert a flow director filter to a generic flow.
2557  *
2558  * @param priv
2559  *   Private structure.
2560  * @param fdir_filter
2561  *   Flow director filter to add.
2562  * @param attributes
2563  *   Generic flow parameters structure.
2564  *
2565  * @return
2566  *  0 on success, errno value on error.
2567  */
2568 static int
2569 priv_fdir_filter_convert(struct priv *priv,
2570                          const struct rte_eth_fdir_filter *fdir_filter,
2571                          struct mlx5_fdir *attributes)
2572 {
2573         const struct rte_eth_fdir_input *input = &fdir_filter->input;
2574
2575         /* Validate queue number. */
2576         if (fdir_filter->action.rx_queue >= priv->rxqs_n) {
2577                 ERROR("invalid queue number %d", fdir_filter->action.rx_queue);
2578                 return EINVAL;
2579         }
2580         attributes->attr.ingress = 1;
2581         attributes->items[0] = (struct rte_flow_item) {
2582                 .type = RTE_FLOW_ITEM_TYPE_ETH,
2583                 .spec = &attributes->l2,
2584                 .mask = &attributes->l2_mask,
2585         };
2586         switch (fdir_filter->action.behavior) {
2587         case RTE_ETH_FDIR_ACCEPT:
2588                 attributes->actions[0] = (struct rte_flow_action){
2589                         .type = RTE_FLOW_ACTION_TYPE_QUEUE,
2590                         .conf = &attributes->queue,
2591                 };
2592                 break;
2593         case RTE_ETH_FDIR_REJECT:
2594                 attributes->actions[0] = (struct rte_flow_action){
2595                         .type = RTE_FLOW_ACTION_TYPE_DROP,
2596                 };
2597                 break;
2598         default:
2599                 ERROR("invalid behavior %d", fdir_filter->action.behavior);
2600                 return ENOTSUP;
2601         }
2602         attributes->queue.index = fdir_filter->action.rx_queue;
2603         switch (fdir_filter->input.flow_type) {
2604         case RTE_ETH_FLOW_NONFRAG_IPV4_UDP:
2605                 attributes->l3.ipv4.hdr = (struct ipv4_hdr){
2606                         .src_addr = input->flow.udp4_flow.ip.src_ip,
2607                         .dst_addr = input->flow.udp4_flow.ip.dst_ip,
2608                         .time_to_live = input->flow.udp4_flow.ip.ttl,
2609                         .type_of_service = input->flow.udp4_flow.ip.tos,
2610                         .next_proto_id = input->flow.udp4_flow.ip.proto,
2611                 };
2612                 attributes->l4.udp.hdr = (struct udp_hdr){
2613                         .src_port = input->flow.udp4_flow.src_port,
2614                         .dst_port = input->flow.udp4_flow.dst_port,
2615                 };
2616                 attributes->items[1] = (struct rte_flow_item){
2617                         .type = RTE_FLOW_ITEM_TYPE_IPV4,
2618                         .spec = &attributes->l3,
2619                         .mask = &attributes->l3,
2620                 };
2621                 attributes->items[2] = (struct rte_flow_item){
2622                         .type = RTE_FLOW_ITEM_TYPE_UDP,
2623                         .spec = &attributes->l4,
2624                         .mask = &attributes->l4,
2625                 };
2626                 break;
2627         case RTE_ETH_FLOW_NONFRAG_IPV4_TCP:
2628                 attributes->l3.ipv4.hdr = (struct ipv4_hdr){
2629                         .src_addr = input->flow.tcp4_flow.ip.src_ip,
2630                         .dst_addr = input->flow.tcp4_flow.ip.dst_ip,
2631                         .time_to_live = input->flow.tcp4_flow.ip.ttl,
2632                         .type_of_service = input->flow.tcp4_flow.ip.tos,
2633                         .next_proto_id = input->flow.tcp4_flow.ip.proto,
2634                 };
2635                 attributes->l4.tcp.hdr = (struct tcp_hdr){
2636                         .src_port = input->flow.tcp4_flow.src_port,
2637                         .dst_port = input->flow.tcp4_flow.dst_port,
2638                 };
2639                 attributes->items[1] = (struct rte_flow_item){
2640                         .type = RTE_FLOW_ITEM_TYPE_IPV4,
2641                         .spec = &attributes->l3,
2642                         .mask = &attributes->l3,
2643                 };
2644                 attributes->items[2] = (struct rte_flow_item){
2645                         .type = RTE_FLOW_ITEM_TYPE_TCP,
2646                         .spec = &attributes->l4,
2647                         .mask = &attributes->l4,
2648                 };
2649                 break;
2650         case RTE_ETH_FLOW_NONFRAG_IPV4_OTHER:
2651                 attributes->l3.ipv4.hdr = (struct ipv4_hdr){
2652                         .src_addr = input->flow.ip4_flow.src_ip,
2653                         .dst_addr = input->flow.ip4_flow.dst_ip,
2654                         .time_to_live = input->flow.ip4_flow.ttl,
2655                         .type_of_service = input->flow.ip4_flow.tos,
2656                         .next_proto_id = input->flow.ip4_flow.proto,
2657                 };
2658                 attributes->items[1] = (struct rte_flow_item){
2659                         .type = RTE_FLOW_ITEM_TYPE_IPV4,
2660                         .spec = &attributes->l3,
2661                         .mask = &attributes->l3,
2662                 };
2663                 break;
2664         case RTE_ETH_FLOW_NONFRAG_IPV6_UDP:
2665                 attributes->l3.ipv6.hdr = (struct ipv6_hdr){
2666                         .hop_limits = input->flow.udp6_flow.ip.hop_limits,
2667                         .proto = input->flow.udp6_flow.ip.proto,
2668                 };
2669                 memcpy(attributes->l3.ipv6.hdr.src_addr,
2670                        input->flow.udp6_flow.ip.src_ip,
2671                        RTE_DIM(attributes->l3.ipv6.hdr.src_addr));
2672                 memcpy(attributes->l3.ipv6.hdr.dst_addr,
2673                        input->flow.udp6_flow.ip.dst_ip,
2674                        RTE_DIM(attributes->l3.ipv6.hdr.src_addr));
2675                 attributes->l4.udp.hdr = (struct udp_hdr){
2676                         .src_port = input->flow.udp6_flow.src_port,
2677                         .dst_port = input->flow.udp6_flow.dst_port,
2678                 };
2679                 attributes->items[1] = (struct rte_flow_item){
2680                         .type = RTE_FLOW_ITEM_TYPE_IPV6,
2681                         .spec = &attributes->l3,
2682                         .mask = &attributes->l3,
2683                 };
2684                 attributes->items[2] = (struct rte_flow_item){
2685                         .type = RTE_FLOW_ITEM_TYPE_UDP,
2686                         .spec = &attributes->l4,
2687                         .mask = &attributes->l4,
2688                 };
2689                 break;
2690         case RTE_ETH_FLOW_NONFRAG_IPV6_TCP:
2691                 attributes->l3.ipv6.hdr = (struct ipv6_hdr){
2692                         .hop_limits = input->flow.tcp6_flow.ip.hop_limits,
2693                         .proto = input->flow.tcp6_flow.ip.proto,
2694                 };
2695                 memcpy(attributes->l3.ipv6.hdr.src_addr,
2696                        input->flow.tcp6_flow.ip.src_ip,
2697                        RTE_DIM(attributes->l3.ipv6.hdr.src_addr));
2698                 memcpy(attributes->l3.ipv6.hdr.dst_addr,
2699                        input->flow.tcp6_flow.ip.dst_ip,
2700                        RTE_DIM(attributes->l3.ipv6.hdr.src_addr));
2701                 attributes->l4.tcp.hdr = (struct tcp_hdr){
2702                         .src_port = input->flow.tcp6_flow.src_port,
2703                         .dst_port = input->flow.tcp6_flow.dst_port,
2704                 };
2705                 attributes->items[1] = (struct rte_flow_item){
2706                         .type = RTE_FLOW_ITEM_TYPE_IPV6,
2707                         .spec = &attributes->l3,
2708                         .mask = &attributes->l3,
2709                 };
2710                 attributes->items[2] = (struct rte_flow_item){
2711                         .type = RTE_FLOW_ITEM_TYPE_TCP,
2712                         .spec = &attributes->l4,
2713                         .mask = &attributes->l4,
2714                 };
2715                 break;
2716         case RTE_ETH_FLOW_NONFRAG_IPV6_OTHER:
2717                 attributes->l3.ipv6.hdr = (struct ipv6_hdr){
2718                         .hop_limits = input->flow.ipv6_flow.hop_limits,
2719                         .proto = input->flow.ipv6_flow.proto,
2720                 };
2721                 memcpy(attributes->l3.ipv6.hdr.src_addr,
2722                        input->flow.ipv6_flow.src_ip,
2723                        RTE_DIM(attributes->l3.ipv6.hdr.src_addr));
2724                 memcpy(attributes->l3.ipv6.hdr.dst_addr,
2725                        input->flow.ipv6_flow.dst_ip,
2726                        RTE_DIM(attributes->l3.ipv6.hdr.src_addr));
2727                 attributes->items[1] = (struct rte_flow_item){
2728                         .type = RTE_FLOW_ITEM_TYPE_IPV6,
2729                         .spec = &attributes->l3,
2730                         .mask = &attributes->l3,
2731                 };
2732                 break;
2733         default:
2734                 ERROR("invalid flow type%d",
2735                       fdir_filter->input.flow_type);
2736                 return ENOTSUP;
2737         }
2738         return 0;
2739 }
2740
2741 /**
2742  * Add new flow director filter and store it in list.
2743  *
2744  * @param priv
2745  *   Private structure.
2746  * @param fdir_filter
2747  *   Flow director filter to add.
2748  *
2749  * @return
2750  *   0 on success, errno value on failure.
2751  */
2752 static int
2753 priv_fdir_filter_add(struct priv *priv,
2754                      const struct rte_eth_fdir_filter *fdir_filter)
2755 {
2756         struct mlx5_fdir attributes = {
2757                 .attr.group = 0,
2758                 .l2_mask = {
2759                         .dst.addr_bytes = "\x00\x00\x00\x00\x00\x00",
2760                         .src.addr_bytes = "\x00\x00\x00\x00\x00\x00",
2761                         .type = 0,
2762                 },
2763         };
2764         struct mlx5_flow_parse parser = {
2765                 .layer = HASH_RXQ_ETH,
2766         };
2767         struct rte_flow_error error;
2768         struct rte_flow *flow;
2769         int ret;
2770
2771         ret = priv_fdir_filter_convert(priv, fdir_filter, &attributes);
2772         if (ret)
2773                 return -ret;
2774         ret = priv_flow_convert(priv, &attributes.attr, attributes.items,
2775                                 attributes.actions, &error, &parser);
2776         if (ret)
2777                 return -ret;
2778         flow = priv_flow_create(priv,
2779                                 &priv->flows,
2780                                 &attributes.attr,
2781                                 attributes.items,
2782                                 attributes.actions,
2783                                 &error);
2784         if (flow) {
2785                 DEBUG("FDIR created %p", (void *)flow);
2786                 return 0;
2787         }
2788         return ENOTSUP;
2789 }
2790
2791 /**
2792  * Delete specific filter.
2793  *
2794  * @param priv
2795  *   Private structure.
2796  * @param fdir_filter
2797  *   Filter to be deleted.
2798  *
2799  * @return
2800  *   0 on success, errno value on failure.
2801  */
2802 static int
2803 priv_fdir_filter_delete(struct priv *priv,
2804                         const struct rte_eth_fdir_filter *fdir_filter)
2805 {
2806         struct mlx5_fdir attributes = {
2807                 .attr.group = 0,
2808         };
2809         struct mlx5_flow_parse parser = {
2810                 .create = 1,
2811                 .layer = HASH_RXQ_ETH,
2812         };
2813         struct rte_flow_error error;
2814         struct rte_flow *flow;
2815         unsigned int i;
2816         int ret;
2817
2818         ret = priv_fdir_filter_convert(priv, fdir_filter, &attributes);
2819         if (ret)
2820                 return -ret;
2821         ret = priv_flow_convert(priv, &attributes.attr, attributes.items,
2822                                 attributes.actions, &error, &parser);
2823         if (ret)
2824                 goto exit;
2825         /*
2826          * Special case for drop action which is only set in the
2827          * specifications when the flow is created.  In this situation the
2828          * drop specification is missing.
2829          */
2830         if (parser.drop) {
2831                 struct ibv_flow_spec_action_drop *drop;
2832
2833                 drop = (void *)((uintptr_t)parser.queue[HASH_RXQ_ETH].ibv_attr +
2834                                 parser.queue[HASH_RXQ_ETH].offset);
2835                 *drop = (struct ibv_flow_spec_action_drop){
2836                         .type = IBV_FLOW_SPEC_ACTION_DROP,
2837                         .size = sizeof(struct ibv_flow_spec_action_drop),
2838                 };
2839                 parser.queue[HASH_RXQ_ETH].ibv_attr->num_of_specs++;
2840         }
2841         TAILQ_FOREACH(flow, &priv->flows, next) {
2842                 struct ibv_flow_attr *attr;
2843                 struct ibv_spec_header *attr_h;
2844                 void *spec;
2845                 struct ibv_flow_attr *flow_attr;
2846                 struct ibv_spec_header *flow_h;
2847                 void *flow_spec;
2848                 unsigned int specs_n;
2849
2850                 attr = parser.queue[HASH_RXQ_ETH].ibv_attr;
2851                 flow_attr = flow->frxq[HASH_RXQ_ETH].ibv_attr;
2852                 /* Compare first the attributes. */
2853                 if (memcmp(attr, flow_attr, sizeof(struct ibv_flow_attr)))
2854                         continue;
2855                 if (attr->num_of_specs == 0)
2856                         continue;
2857                 spec = (void *)((uintptr_t)attr +
2858                                 sizeof(struct ibv_flow_attr));
2859                 flow_spec = (void *)((uintptr_t)flow_attr +
2860                                      sizeof(struct ibv_flow_attr));
2861                 specs_n = RTE_MIN(attr->num_of_specs, flow_attr->num_of_specs);
2862                 for (i = 0; i != specs_n; ++i) {
2863                         attr_h = spec;
2864                         flow_h = flow_spec;
2865                         if (memcmp(spec, flow_spec,
2866                                    RTE_MIN(attr_h->size, flow_h->size)))
2867                                 goto wrong_flow;
2868                         spec = (void *)((uintptr_t)spec + attr_h->size);
2869                         flow_spec = (void *)((uintptr_t)flow_spec +
2870                                              flow_h->size);
2871                 }
2872                 /* At this point, the flow match. */
2873                 break;
2874 wrong_flow:
2875                 /* The flow does not match. */
2876                 continue;
2877         }
2878         if (flow)
2879                 priv_flow_destroy(priv, &priv->flows, flow);
2880 exit:
2881         for (i = 0; i != hash_rxq_init_n; ++i) {
2882                 if (parser.queue[i].ibv_attr)
2883                         rte_free(parser.queue[i].ibv_attr);
2884         }
2885         return -ret;
2886 }
2887
2888 /**
2889  * Update queue for specific filter.
2890  *
2891  * @param priv
2892  *   Private structure.
2893  * @param fdir_filter
2894  *   Filter to be updated.
2895  *
2896  * @return
2897  *   0 on success, errno value on failure.
2898  */
2899 static int
2900 priv_fdir_filter_update(struct priv *priv,
2901                         const struct rte_eth_fdir_filter *fdir_filter)
2902 {
2903         int ret;
2904
2905         ret = priv_fdir_filter_delete(priv, fdir_filter);
2906         if (ret)
2907                 return ret;
2908         ret = priv_fdir_filter_add(priv, fdir_filter);
2909         return ret;
2910 }
2911
2912 /**
2913  * Flush all filters.
2914  *
2915  * @param priv
2916  *   Private structure.
2917  */
2918 static void
2919 priv_fdir_filter_flush(struct priv *priv)
2920 {
2921         priv_flow_flush(priv, &priv->flows);
2922 }
2923
2924 /**
2925  * Get flow director information.
2926  *
2927  * @param priv
2928  *   Private structure.
2929  * @param[out] fdir_info
2930  *   Resulting flow director information.
2931  */
2932 static void
2933 priv_fdir_info_get(struct priv *priv, struct rte_eth_fdir_info *fdir_info)
2934 {
2935         struct rte_eth_fdir_masks *mask =
2936                 &priv->dev->data->dev_conf.fdir_conf.mask;
2937
2938         fdir_info->mode = priv->dev->data->dev_conf.fdir_conf.mode;
2939         fdir_info->guarant_spc = 0;
2940         rte_memcpy(&fdir_info->mask, mask, sizeof(fdir_info->mask));
2941         fdir_info->max_flexpayload = 0;
2942         fdir_info->flow_types_mask[0] = 0;
2943         fdir_info->flex_payload_unit = 0;
2944         fdir_info->max_flex_payload_segment_num = 0;
2945         fdir_info->flex_payload_limit = 0;
2946         memset(&fdir_info->flex_conf, 0, sizeof(fdir_info->flex_conf));
2947 }
2948
2949 /**
2950  * Deal with flow director operations.
2951  *
2952  * @param priv
2953  *   Pointer to private structure.
2954  * @param filter_op
2955  *   Operation to perform.
2956  * @param arg
2957  *   Pointer to operation-specific structure.
2958  *
2959  * @return
2960  *   0 on success, errno value on failure.
2961  */
2962 static int
2963 priv_fdir_ctrl_func(struct priv *priv, enum rte_filter_op filter_op, void *arg)
2964 {
2965         enum rte_fdir_mode fdir_mode =
2966                 priv->dev->data->dev_conf.fdir_conf.mode;
2967         int ret = 0;
2968
2969         if (filter_op == RTE_ETH_FILTER_NOP)
2970                 return 0;
2971         if (fdir_mode != RTE_FDIR_MODE_PERFECT &&
2972             fdir_mode != RTE_FDIR_MODE_PERFECT_MAC_VLAN) {
2973                 ERROR("%p: flow director mode %d not supported",
2974                       (void *)priv, fdir_mode);
2975                 return EINVAL;
2976         }
2977         switch (filter_op) {
2978         case RTE_ETH_FILTER_ADD:
2979                 ret = priv_fdir_filter_add(priv, arg);
2980                 break;
2981         case RTE_ETH_FILTER_UPDATE:
2982                 ret = priv_fdir_filter_update(priv, arg);
2983                 break;
2984         case RTE_ETH_FILTER_DELETE:
2985                 ret = priv_fdir_filter_delete(priv, arg);
2986                 break;
2987         case RTE_ETH_FILTER_FLUSH:
2988                 priv_fdir_filter_flush(priv);
2989                 break;
2990         case RTE_ETH_FILTER_INFO:
2991                 priv_fdir_info_get(priv, arg);
2992                 break;
2993         default:
2994                 DEBUG("%p: unknown operation %u", (void *)priv,
2995                       filter_op);
2996                 ret = EINVAL;
2997                 break;
2998         }
2999         return ret;
3000 }
3001
3002 /**
3003  * Manage filter operations.
3004  *
3005  * @param dev
3006  *   Pointer to Ethernet device structure.
3007  * @param filter_type
3008  *   Filter type.
3009  * @param filter_op
3010  *   Operation to perform.
3011  * @param arg
3012  *   Pointer to operation-specific structure.
3013  *
3014  * @return
3015  *   0 on success, negative errno value on failure.
3016  */
3017 int
3018 mlx5_dev_filter_ctrl(struct rte_eth_dev *dev,
3019                      enum rte_filter_type filter_type,
3020                      enum rte_filter_op filter_op,
3021                      void *arg)
3022 {
3023         int ret = EINVAL;
3024         struct priv *priv = dev->data->dev_private;
3025
3026         switch (filter_type) {
3027         case RTE_ETH_FILTER_GENERIC:
3028                 if (filter_op != RTE_ETH_FILTER_GET)
3029                         return -EINVAL;
3030                 *(const void **)arg = &mlx5_flow_ops;
3031                 return 0;
3032         case RTE_ETH_FILTER_FDIR:
3033                 ret = priv_fdir_ctrl_func(priv, filter_op, arg);
3034                 break;
3035         default:
3036                 ERROR("%p: filter type (%d) not supported",
3037                       (void *)dev, filter_type);
3038                 break;
3039         }
3040         return -ret;
3041 }