drivers/net/mlx5/mlx5_flow.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright 2016 6WIND S.A.
   5  *   Copyright 2016 Mellanox.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of 6WIND S.A. nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include <sys/queue.h>
  35 #include <string.h>
  36
  37 /* Verbs header. */
  38 /* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */
  39 #ifdef PEDANTIC
  40 #pragma GCC diagnostic ignored "-Wpedantic"
  41 #endif
  42 #include <infiniband/verbs.h>
  43 #ifdef PEDANTIC
  44 #pragma GCC diagnostic error "-Wpedantic"
  45 #endif
  46
  47 #include <rte_ethdev.h>
  48 #include <rte_flow.h>
  49 #include <rte_flow_driver.h>
  50 #include <rte_malloc.h>
  51
  52 #include "mlx5.h"
  53 #include "mlx5_prm.h"
  54
  55 /* Define minimal priority for control plane flows. */
  56 #define MLX5_CTRL_FLOW_PRIORITY 4
  57
  58 /* Internet Protocol versions. */
  59 #define MLX5_IPV4 4
  60 #define MLX5_IPV6 6
  61
  62 #ifndef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT
  63 struct ibv_counter_set_init_attr {
  64         int dummy;
  65 };
  66 struct ibv_flow_spec_counter_action {
  67         int dummy;
  68 };
  69 struct ibv_counter_set {
  70         int dummy;
  71 };
  72
  73 static inline int
  74 ibv_destroy_counter_set(struct ibv_counter_set *cs)
  75 {
  76         (void)cs;
  77         return -ENOTSUP;
  78 }
  79 #endif
  80
  81 /* Dev ops structure defined in mlx5.c */
  82 extern const struct eth_dev_ops mlx5_dev_ops;
  83 extern const struct eth_dev_ops mlx5_dev_ops_isolate;
  84
  85 static int
  86 mlx5_flow_create_eth(const struct rte_flow_item *item,
  87                      const void *default_mask,
  88                      void *data);
  89
  90 static int
  91 mlx5_flow_create_vlan(const struct rte_flow_item *item,
  92                       const void *default_mask,
  93                       void *data);
  94
  95 static int
  96 mlx5_flow_create_ipv4(const struct rte_flow_item *item,
  97                       const void *default_mask,
  98                       void *data);
  99
 100 static int
 101 mlx5_flow_create_ipv6(const struct rte_flow_item *item,
 102                       const void *default_mask,
 103                       void *data);
 104
 105 static int
 106 mlx5_flow_create_udp(const struct rte_flow_item *item,
 107                      const void *default_mask,
 108                      void *data);
 109
 110 static int
 111 mlx5_flow_create_tcp(const struct rte_flow_item *item,
 112                      const void *default_mask,
 113                      void *data);
 114
 115 static int
 116 mlx5_flow_create_vxlan(const struct rte_flow_item *item,
 117                        const void *default_mask,
 118                        void *data);
 119
 120 struct mlx5_flow_parse;
 121
 122 static void
 123 mlx5_flow_create_copy(struct mlx5_flow_parse *parser, void *src,
 124                       unsigned int size);
 125
 126 static int
 127 mlx5_flow_create_flag_mark(struct mlx5_flow_parse *parser, uint32_t mark_id);
 128
 129 static int
 130 mlx5_flow_create_count(struct priv *priv, struct mlx5_flow_parse *parser);
 131
 132 /* Hash RX queue types. */
 133 enum hash_rxq_type {
 134         HASH_RXQ_TCPV4,
 135         HASH_RXQ_UDPV4,
 136         HASH_RXQ_IPV4,
 137         HASH_RXQ_TCPV6,
 138         HASH_RXQ_UDPV6,
 139         HASH_RXQ_IPV6,
 140         HASH_RXQ_ETH,
 141 };
 142
 143 /* Initialization data for hash RX queue. */
 144 struct hash_rxq_init {
 145         uint64_t hash_fields; /* Fields that participate in the hash. */
 146         uint64_t dpdk_rss_hf; /* Matching DPDK RSS hash fields. */
 147         unsigned int flow_priority; /* Flow priority to use. */
 148         unsigned int ip_version; /* Internet protocol. */
 149 };
 150
 151 /* Initialization data for hash RX queues. */
 152 const struct hash_rxq_init hash_rxq_init[] = {
 153         [HASH_RXQ_TCPV4] = {
 154                 .hash_fields = (IBV_RX_HASH_SRC_IPV4 |
 155                                 IBV_RX_HASH_DST_IPV4 |
 156                                 IBV_RX_HASH_SRC_PORT_TCP |
 157                                 IBV_RX_HASH_DST_PORT_TCP),
 158                 .dpdk_rss_hf = ETH_RSS_NONFRAG_IPV4_TCP,
 159                 .flow_priority = 0,
 160                 .ip_version = MLX5_IPV4,
 161         },
 162         [HASH_RXQ_UDPV4] = {
 163                 .hash_fields = (IBV_RX_HASH_SRC_IPV4 |
 164                                 IBV_RX_HASH_DST_IPV4 |
 165                                 IBV_RX_HASH_SRC_PORT_UDP |
 166                                 IBV_RX_HASH_DST_PORT_UDP),
 167                 .dpdk_rss_hf = ETH_RSS_NONFRAG_IPV4_UDP,
 168                 .flow_priority = 0,
 169                 .ip_version = MLX5_IPV4,
 170         },
 171         [HASH_RXQ_IPV4] = {
 172                 .hash_fields = (IBV_RX_HASH_SRC_IPV4 |
 173                                 IBV_RX_HASH_DST_IPV4),
 174                 .dpdk_rss_hf = (ETH_RSS_IPV4 |
 175                                 ETH_RSS_FRAG_IPV4),
 176                 .flow_priority = 1,
 177                 .ip_version = MLX5_IPV4,
 178         },
 179         [HASH_RXQ_TCPV6] = {
 180                 .hash_fields = (IBV_RX_HASH_SRC_IPV6 |
 181                                 IBV_RX_HASH_DST_IPV6 |
 182                                 IBV_RX_HASH_SRC_PORT_TCP |
 183                                 IBV_RX_HASH_DST_PORT_TCP),
 184                 .dpdk_rss_hf = ETH_RSS_NONFRAG_IPV6_TCP,
 185                 .flow_priority = 0,
 186                 .ip_version = MLX5_IPV6,
 187         },
 188         [HASH_RXQ_UDPV6] = {
 189                 .hash_fields = (IBV_RX_HASH_SRC_IPV6 |
 190                                 IBV_RX_HASH_DST_IPV6 |
 191                                 IBV_RX_HASH_SRC_PORT_UDP |
 192                                 IBV_RX_HASH_DST_PORT_UDP),
 193                 .dpdk_rss_hf = ETH_RSS_NONFRAG_IPV6_UDP,
 194                 .flow_priority = 0,
 195                 .ip_version = MLX5_IPV6,
 196         },
 197         [HASH_RXQ_IPV6] = {
 198                 .hash_fields = (IBV_RX_HASH_SRC_IPV6 |
 199                                 IBV_RX_HASH_DST_IPV6),
 200                 .dpdk_rss_hf = (ETH_RSS_IPV6 |
 201                                 ETH_RSS_FRAG_IPV6),
 202                 .flow_priority = 1,
 203                 .ip_version = MLX5_IPV6,
 204         },
 205         [HASH_RXQ_ETH] = {
 206                 .hash_fields = 0,
 207                 .dpdk_rss_hf = 0,
 208                 .flow_priority = 2,
 209         },
 210 };
 211
 212 /* Number of entries in hash_rxq_init[]. */
 213 const unsigned int hash_rxq_init_n = RTE_DIM(hash_rxq_init);
 214
 215 /** Structure for holding counter stats. */
 216 struct mlx5_flow_counter_stats {
 217         uint64_t hits; /**< Number of packets matched by the rule. */
 218         uint64_t bytes; /**< Number of bytes matched by the rule. */
 219 };
 220
 221 /** Structure for Drop queue. */
 222 struct mlx5_hrxq_drop {
 223         struct ibv_rwq_ind_table *ind_table; /**< Indirection table. */
 224         struct ibv_qp *qp; /**< Verbs queue pair. */
 225         struct ibv_wq *wq; /**< Verbs work queue. */
 226         struct ibv_cq *cq; /**< Verbs completion queue. */
 227 };
 228
 229 /* Flows structures. */
 230 struct mlx5_flow {
 231         uint64_t hash_fields; /**< Fields that participate in the hash. */
 232         struct ibv_flow_attr *ibv_attr; /**< Pointer to Verbs attributes. */
 233         struct ibv_flow *ibv_flow; /**< Verbs flow. */
 234         struct mlx5_hrxq *hrxq; /**< Hash Rx queues. */
 235 };
 236
 237 /* Drop flows structures. */
 238 struct mlx5_flow_drop {
 239         struct ibv_flow_attr *ibv_attr; /**< Pointer to Verbs attributes. */
 240         struct ibv_flow *ibv_flow; /**< Verbs flow. */
 241 };
 242
 243 struct rte_flow {
 244         TAILQ_ENTRY(rte_flow) next; /**< Pointer to the next flow structure. */
 245         uint32_t mark:1; /**< Set if the flow is marked. */
 246         uint32_t drop:1; /**< Drop queue. */
 247         uint16_t queues_n; /**< Number of entries in queue[]. */
 248         uint16_t (*queues)[]; /**< Queues indexes to use. */
 249         struct rte_eth_rss_conf rss_conf; /**< RSS configuration */
 250         uint8_t rss_key[40]; /**< copy of the RSS key. */
 251         struct ibv_counter_set *cs; /**< Holds the counters for the rule. */
 252         struct mlx5_flow_counter_stats counter_stats;/**<The counter stats. */
 253         struct mlx5_flow frxq[RTE_DIM(hash_rxq_init)];
 254         /**< Flow with Rx queue. */
 255 };
 256
 257 /** Static initializer for items. */
 258 #define ITEMS(...) \
 259         (const enum rte_flow_item_type []){ \
 260                 __VA_ARGS__, RTE_FLOW_ITEM_TYPE_END, \
 261         }
 262
 263 /** Structure to generate a simple graph of layers supported by the NIC. */
 264 struct mlx5_flow_items {
 265         /** List of possible actions for these items. */
 266         const enum rte_flow_action_type *const actions;
 267         /** Bit-masks corresponding to the possibilities for the item. */
 268         const void *mask;
 269         /**
 270          * Default bit-masks to use when item->mask is not provided. When
 271          * \default_mask is also NULL, the full supported bit-mask (\mask) is
 272          * used instead.
 273          */
 274         const void *default_mask;
 275         /** Bit-masks size in bytes. */
 276         const unsigned int mask_sz;
 277         /**
 278          * Conversion function from rte_flow to NIC specific flow.
 279          *
 280          * @param item
 281          *   rte_flow item to convert.
 282          * @param default_mask
 283          *   Default bit-masks to use when item->mask is not provided.
 284          * @param data
 285          *   Internal structure to store the conversion.
 286          *
 287          * @return
 288          *   0 on success, negative value otherwise.
 289          */
 290         int (*convert)(const struct rte_flow_item *item,
 291                        const void *default_mask,
 292                        void *data);
 293         /** Size in bytes of the destination structure. */
 294         const unsigned int dst_sz;
 295         /** List of possible following items.  */
 296         const enum rte_flow_item_type *const items;
 297 };
 298
 299 /** Valid action for this PMD. */
 300 static const enum rte_flow_action_type valid_actions[] = {
 301         RTE_FLOW_ACTION_TYPE_DROP,
 302         RTE_FLOW_ACTION_TYPE_QUEUE,
 303         RTE_FLOW_ACTION_TYPE_MARK,
 304         RTE_FLOW_ACTION_TYPE_FLAG,
 305 #ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT
 306         RTE_FLOW_ACTION_TYPE_COUNT,
 307 #endif
 308         RTE_FLOW_ACTION_TYPE_END,
 309 };
 310
 311 /** Graph of supported items and associated actions. */
 312 static const struct mlx5_flow_items mlx5_flow_items[] = {
 313         [RTE_FLOW_ITEM_TYPE_END] = {
 314                 .items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH,
 315                                RTE_FLOW_ITEM_TYPE_VXLAN),
 316         },
 317         [RTE_FLOW_ITEM_TYPE_ETH] = {
 318                 .items = ITEMS(RTE_FLOW_ITEM_TYPE_VLAN,
 319                                RTE_FLOW_ITEM_TYPE_IPV4,
 320                                RTE_FLOW_ITEM_TYPE_IPV6),
 321                 .actions = valid_actions,
 322                 .mask = &(const struct rte_flow_item_eth){
 323                         .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
 324                         .src.addr_bytes = "\xff\xff\xff\xff\xff\xff",
 325                         .type = -1,
 326                 },
 327                 .default_mask = &rte_flow_item_eth_mask,
 328                 .mask_sz = sizeof(struct rte_flow_item_eth),
 329                 .convert = mlx5_flow_create_eth,
 330                 .dst_sz = sizeof(struct ibv_flow_spec_eth),
 331         },
 332         [RTE_FLOW_ITEM_TYPE_VLAN] = {
 333                 .items = ITEMS(RTE_FLOW_ITEM_TYPE_IPV4,
 334                                RTE_FLOW_ITEM_TYPE_IPV6),
 335                 .actions = valid_actions,
 336                 .mask = &(const struct rte_flow_item_vlan){
 337                         .tci = -1,
 338                 },
 339                 .default_mask = &rte_flow_item_vlan_mask,
 340                 .mask_sz = sizeof(struct rte_flow_item_vlan),
 341                 .convert = mlx5_flow_create_vlan,
 342                 .dst_sz = 0,
 343         },
 344         [RTE_FLOW_ITEM_TYPE_IPV4] = {
 345                 .items = ITEMS(RTE_FLOW_ITEM_TYPE_UDP,
 346                                RTE_FLOW_ITEM_TYPE_TCP),
 347                 .actions = valid_actions,
 348                 .mask = &(const struct rte_flow_item_ipv4){
 349                         .hdr = {
 350                                 .src_addr = -1,
 351                                 .dst_addr = -1,
 352                                 .type_of_service = -1,
 353                                 .next_proto_id = -1,
 354                         },
 355                 },
 356                 .default_mask = &rte_flow_item_ipv4_mask,
 357                 .mask_sz = sizeof(struct rte_flow_item_ipv4),
 358                 .convert = mlx5_flow_create_ipv4,
 359                 .dst_sz = sizeof(struct ibv_flow_spec_ipv4_ext),
 360         },
 361         [RTE_FLOW_ITEM_TYPE_IPV6] = {
 362                 .items = ITEMS(RTE_FLOW_ITEM_TYPE_UDP,
 363                                RTE_FLOW_ITEM_TYPE_TCP),
 364                 .actions = valid_actions,
 365                 .mask = &(const struct rte_flow_item_ipv6){
 366                         .hdr = {
 367                                 .src_addr = {
 368                                         0xff, 0xff, 0xff, 0xff,
 369                                         0xff, 0xff, 0xff, 0xff,
 370                                         0xff, 0xff, 0xff, 0xff,
 371                                         0xff, 0xff, 0xff, 0xff,
 372                                 },
 373                                 .dst_addr = {
 374                                         0xff, 0xff, 0xff, 0xff,
 375                                         0xff, 0xff, 0xff, 0xff,
 376                                         0xff, 0xff, 0xff, 0xff,
 377                                         0xff, 0xff, 0xff, 0xff,
 378                                 },
 379                                 .vtc_flow = -1,
 380                                 .proto = -1,
 381                                 .hop_limits = -1,
 382                         },
 383                 },
 384                 .default_mask = &rte_flow_item_ipv6_mask,
 385                 .mask_sz = sizeof(struct rte_flow_item_ipv6),
 386                 .convert = mlx5_flow_create_ipv6,
 387                 .dst_sz = sizeof(struct ibv_flow_spec_ipv6),
 388         },
 389         [RTE_FLOW_ITEM_TYPE_UDP] = {
 390                 .items = ITEMS(RTE_FLOW_ITEM_TYPE_VXLAN),
 391                 .actions = valid_actions,
 392                 .mask = &(const struct rte_flow_item_udp){
 393                         .hdr = {
 394                                 .src_port = -1,
 395                                 .dst_port = -1,
 396                         },
 397                 },
 398                 .default_mask = &rte_flow_item_udp_mask,
 399                 .mask_sz = sizeof(struct rte_flow_item_udp),
 400                 .convert = mlx5_flow_create_udp,
 401                 .dst_sz = sizeof(struct ibv_flow_spec_tcp_udp),
 402         },
 403         [RTE_FLOW_ITEM_TYPE_TCP] = {
 404                 .actions = valid_actions,
 405                 .mask = &(const struct rte_flow_item_tcp){
 406                         .hdr = {
 407                                 .src_port = -1,
 408                                 .dst_port = -1,
 409                         },
 410                 },
 411                 .default_mask = &rte_flow_item_tcp_mask,
 412                 .mask_sz = sizeof(struct rte_flow_item_tcp),
 413                 .convert = mlx5_flow_create_tcp,
 414                 .dst_sz = sizeof(struct ibv_flow_spec_tcp_udp),
 415         },
 416         [RTE_FLOW_ITEM_TYPE_VXLAN] = {
 417                 .items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH),
 418                 .actions = valid_actions,
 419                 .mask = &(const struct rte_flow_item_vxlan){
 420                         .vni = "\xff\xff\xff",
 421                 },
 422                 .default_mask = &rte_flow_item_vxlan_mask,
 423                 .mask_sz = sizeof(struct rte_flow_item_vxlan),
 424                 .convert = mlx5_flow_create_vxlan,
 425                 .dst_sz = sizeof(struct ibv_flow_spec_tunnel),
 426         },
 427 };
 428
 429 /** Structure to pass to the conversion function. */
 430 struct mlx5_flow_parse {
 431         uint32_t inner; /**< Set once VXLAN is encountered. */
 432         uint32_t allmulti:1; /**< Set once allmulti dst MAC is encountered. */
 433         uint32_t create:1;
 434         /**< Whether resources should remain after a validate. */
 435         uint32_t drop:1; /**< Target is a drop queue. */
 436         uint32_t mark:1; /**< Mark is present in the flow. */
 437         uint32_t count:1; /**< Count is present in the flow. */
 438         uint32_t mark_id; /**< Mark identifier. */
 439         uint16_t queues[RTE_MAX_QUEUES_PER_PORT]; /**< Queues indexes to use. */
 440         uint16_t queues_n; /**< Number of entries in queue[]. */
 441         struct rte_eth_rss_conf rss_conf; /**< RSS configuration */
 442         uint8_t rss_key[40]; /**< copy of the RSS key. */
 443         enum hash_rxq_type layer; /**< Last pattern layer detected. */
 444         struct ibv_counter_set *cs; /**< Holds the counter set for the rule */
 445         struct {
 446                 struct ibv_flow_attr *ibv_attr;
 447                 /**< Pointer to Verbs attributes. */
 448                 unsigned int offset;
 449                 /**< Current position or total size of the attribute. */
 450         } queue[RTE_DIM(hash_rxq_init)];
 451 };
 452
 453 static const struct rte_flow_ops mlx5_flow_ops = {
 454         .validate = mlx5_flow_validate,
 455         .create = mlx5_flow_create,
 456         .destroy = mlx5_flow_destroy,
 457         .flush = mlx5_flow_flush,
 458 #ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT
 459         .query = mlx5_flow_query,
 460 #else
 461         .query = NULL,
 462 #endif
 463         .isolate = mlx5_flow_isolate,
 464 };
 465
 466 /* Convert FDIR request to Generic flow. */
 467 struct mlx5_fdir {
 468         struct rte_flow_attr attr;
 469         struct rte_flow_action actions[2];
 470         struct rte_flow_item items[4];
 471         struct rte_flow_item_eth l2;
 472         struct rte_flow_item_eth l2_mask;
 473         union {
 474                 struct rte_flow_item_ipv4 ipv4;
 475                 struct rte_flow_item_ipv6 ipv6;
 476         } l3;
 477         union {
 478                 struct rte_flow_item_udp udp;
 479                 struct rte_flow_item_tcp tcp;
 480         } l4;
 481         struct rte_flow_action_queue queue;
 482 };
 483
 484 /* Verbs specification header. */
 485 struct ibv_spec_header {
 486         enum ibv_flow_spec_type type;
 487         uint16_t size;
 488 };
 489
 490 /**
 491  * Check support for a given item.
 492  *
 493  * @param item[in]
 494  *   Item specification.
 495  * @param mask[in]
 496  *   Bit-masks covering supported fields to compare with spec, last and mask in
 497  *   \item.
 498  * @param size
 499  *   Bit-Mask size in bytes.
 500  *
 501  * @return
 502  *   0 on success.
 503  */
 504 static int
 505 mlx5_flow_item_validate(const struct rte_flow_item *item,
 506                         const uint8_t *mask, unsigned int size)
 507 {
 508         int ret = 0;
 509
 510         if (!item->spec && (item->mask || item->last))
 511                 return -1;
 512         if (item->spec && !item->mask) {
 513                 unsigned int i;
 514                 const uint8_t *spec = item->spec;
 515
 516                 for (i = 0; i < size; ++i)
 517                         if ((spec[i] | mask[i]) != mask[i])
 518                                 return -1;
 519         }
 520         if (item->last && !item->mask) {
 521                 unsigned int i;
 522                 const uint8_t *spec = item->last;
 523
 524                 for (i = 0; i < size; ++i)
 525                         if ((spec[i] | mask[i]) != mask[i])
 526                                 return -1;
 527         }
 528         if (item->mask) {
 529                 unsigned int i;
 530                 const uint8_t *spec = item->mask;
 531
 532                 for (i = 0; i < size; ++i)
 533                         if ((spec[i] | mask[i]) != mask[i])
 534                                 return -1;
 535         }
 536         if (item->spec && item->last) {
 537                 uint8_t spec[size];
 538                 uint8_t last[size];
 539                 const uint8_t *apply = mask;
 540                 unsigned int i;
 541
 542                 if (item->mask)
 543                         apply = item->mask;
 544                 for (i = 0; i < size; ++i) {
 545                         spec[i] = ((const uint8_t *)item->spec)[i] & apply[i];
 546                         last[i] = ((const uint8_t *)item->last)[i] & apply[i];
 547                 }
 548                 ret = memcmp(spec, last, size);
 549         }
 550         return ret;
 551 }
 552
 553 /**
 554  * Copy the RSS configuration from the user ones.
 555  *
 556  * @param priv
 557  *   Pointer to private structure.
 558  * @param parser
 559  *   Internal parser structure.
 560  * @param rss_conf
 561  *   User RSS configuration to save.
 562  *
 563  * @return
 564  *   0 on success, errno value on failure.
 565  */
 566 static int
 567 priv_flow_convert_rss_conf(struct priv *priv,
 568                            struct mlx5_flow_parse *parser,
 569                            const struct rte_eth_rss_conf *rss_conf)
 570 {
 571         const struct rte_eth_rss_conf *rss =
 572                 rss_conf ? rss_conf : &priv->rss_conf;
 573
 574         if (rss->rss_key_len > 40)
 575                 return EINVAL;
 576         parser->rss_conf.rss_key_len = rss->rss_key_len;
 577         parser->rss_conf.rss_hf = rss->rss_hf;
 578         memcpy(parser->rss_key, rss->rss_key, rss->rss_key_len);
 579         parser->rss_conf.rss_key = parser->rss_key;
 580         return 0;
 581 }
 582
 583 /**
 584  * Extract attribute to the parser.
 585  *
 586  * @param priv
 587  *   Pointer to private structure.
 588  * @param[in] attr
 589  *   Flow rule attributes.
 590  * @param[out] error
 591  *   Perform verbose error reporting if not NULL.
 592  * @param[in, out] parser
 593  *   Internal parser structure.
 594  *
 595  * @return
 596  *   0 on success, a negative errno value otherwise and rte_errno is set.
 597  */
 598 static int
 599 priv_flow_convert_attributes(struct priv *priv,
 600                              const struct rte_flow_attr *attr,
 601                              struct rte_flow_error *error,
 602                              struct mlx5_flow_parse *parser)
 603 {
 604         (void)priv;
 605         (void)parser;
 606         if (attr->group) {
 607                 rte_flow_error_set(error, ENOTSUP,
 608                                    RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
 609                                    NULL,
 610                                    "groups are not supported");
 611                 return -rte_errno;
 612         }
 613         if (attr->priority && attr->priority != MLX5_CTRL_FLOW_PRIORITY) {
 614                 rte_flow_error_set(error, ENOTSUP,
 615                                    RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
 616                                    NULL,
 617                                    "priorities are not supported");
 618                 return -rte_errno;
 619         }
 620         if (attr->egress) {
 621                 rte_flow_error_set(error, ENOTSUP,
 622                                    RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
 623                                    NULL,
 624                                    "egress is not supported");
 625                 return -rte_errno;
 626         }
 627         if (!attr->ingress) {
 628                 rte_flow_error_set(error, ENOTSUP,
 629                                    RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
 630                                    NULL,
 631                                    "only ingress is supported");
 632                 return -rte_errno;
 633         }
 634         return 0;
 635 }
 636
 637 /**
 638  * Extract actions request to the parser.
 639  *
 640  * @param priv
 641  *   Pointer to private structure.
 642  * @param[in] actions
 643  *   Associated actions (list terminated by the END action).
 644  * @param[out] error
 645  *   Perform verbose error reporting if not NULL.
 646  * @param[in, out] parser
 647  *   Internal parser structure.
 648  *
 649  * @return
 650  *   0 on success, a negative errno value otherwise and rte_errno is set.
 651  */
 652 static int
 653 priv_flow_convert_actions(struct priv *priv,
 654                           const struct rte_flow_action actions[],
 655                           struct rte_flow_error *error,
 656                           struct mlx5_flow_parse *parser)
 657 {
 658         /*
 659          * Add default RSS configuration necessary for Verbs to create QP even
 660          * if no RSS is necessary.
 661          */
 662         priv_flow_convert_rss_conf(priv, parser,
 663                                    (const struct rte_eth_rss_conf *)
 664                                    &priv->rss_conf);
 665         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; ++actions) {
 666                 if (actions->type == RTE_FLOW_ACTION_TYPE_VOID) {
 667                         continue;
 668                 } else if (actions->type == RTE_FLOW_ACTION_TYPE_DROP) {
 669                         parser->drop = 1;
 670                 } else if (actions->type == RTE_FLOW_ACTION_TYPE_QUEUE) {
 671                         const struct rte_flow_action_queue *queue =
 672                                 (const struct rte_flow_action_queue *)
 673                                 actions->conf;
 674                         uint16_t n;
 675                         uint16_t found = 0;
 676
 677                         if (!queue || (queue->index > (priv->rxqs_n - 1)))
 678                                 goto exit_action_not_supported;
 679                         for (n = 0; n < parser->queues_n; ++n) {
 680                                 if (parser->queues[n] == queue->index) {
 681                                         found = 1;
 682                                         break;
 683                                 }
 684                         }
 685                         if (parser->queues_n > 1 && !found) {
 686                                 rte_flow_error_set(error, ENOTSUP,
 687                                            RTE_FLOW_ERROR_TYPE_ACTION,
 688                                            actions,
 689                                            "queue action not in RSS queues");
 690                                 return -rte_errno;
 691                         }
 692                         if (!found) {
 693                                 parser->queues_n = 1;
 694                                 parser->queues[0] = queue->index;
 695                         }
 696                 } else if (actions->type == RTE_FLOW_ACTION_TYPE_RSS) {
 697                         const struct rte_flow_action_rss *rss =
 698                                 (const struct rte_flow_action_rss *)
 699                                 actions->conf;
 700                         uint16_t n;
 701
 702                         if (!rss || !rss->num) {
 703                                 rte_flow_error_set(error, EINVAL,
 704                                                    RTE_FLOW_ERROR_TYPE_ACTION,
 705                                                    actions,
 706                                                    "no valid queues");
 707                                 return -rte_errno;
 708                         }
 709                         if (parser->queues_n == 1) {
 710                                 uint16_t found = 0;
 711
 712                                 assert(parser->queues_n);
 713                                 for (n = 0; n < rss->num; ++n) {
 714                                         if (parser->queues[0] ==
 715                                             rss->queue[n]) {
 716                                                 found = 1;
 717                                                 break;
 718                                         }
 719                                 }
 720                                 if (!found) {
 721                                         rte_flow_error_set(error, ENOTSUP,
 722                                                    RTE_FLOW_ERROR_TYPE_ACTION,
 723                                                    actions,
 724                                                    "queue action not in RSS"
 725                                                    " queues");
 726                                         return -rte_errno;
 727                                 }
 728                         }
 729                         for (n = 0; n < rss->num; ++n) {
 730                                 if (rss->queue[n] >= priv->rxqs_n) {
 731                                         rte_flow_error_set(error, EINVAL,
 732                                                    RTE_FLOW_ERROR_TYPE_ACTION,
 733                                                    actions,
 734                                                    "queue id > number of"
 735                                                    " queues");
 736                                         return -rte_errno;
 737                                 }
 738                         }
 739                         for (n = 0; n < rss->num; ++n)
 740                                 parser->queues[n] = rss->queue[n];
 741                         parser->queues_n = rss->num;
 742                         if (priv_flow_convert_rss_conf(priv, parser,
 743                                                        rss->rss_conf)) {
 744                                 rte_flow_error_set(error, EINVAL,
 745                                                    RTE_FLOW_ERROR_TYPE_ACTION,
 746                                                    actions,
 747                                                    "wrong RSS configuration");
 748                                 return -rte_errno;
 749                         }
 750                 } else if (actions->type == RTE_FLOW_ACTION_TYPE_MARK) {
 751                         const struct rte_flow_action_mark *mark =
 752                                 (const struct rte_flow_action_mark *)
 753                                 actions->conf;
 754
 755                         if (!mark) {
 756                                 rte_flow_error_set(error, EINVAL,
 757                                                    RTE_FLOW_ERROR_TYPE_ACTION,
 758                                                    actions,
 759                                                    "mark must be defined");
 760                                 return -rte_errno;
 761                         } else if (mark->id >= MLX5_FLOW_MARK_MAX) {
 762                                 rte_flow_error_set(error, ENOTSUP,
 763                                                    RTE_FLOW_ERROR_TYPE_ACTION,
 764                                                    actions,
 765                                                    "mark must be between 0"
 766                                                    " and 16777199");
 767                                 return -rte_errno;
 768                         }
 769                         parser->mark = 1;
 770                         parser->mark_id = mark->id;
 771                 } else if (actions->type == RTE_FLOW_ACTION_TYPE_FLAG) {
 772                         parser->mark = 1;
 773                 } else if (actions->type == RTE_FLOW_ACTION_TYPE_COUNT &&
 774                            priv->counter_set_supported) {
 775                         parser->count = 1;
 776                 } else {
 777                         goto exit_action_not_supported;
 778                 }
 779         }
 780         if (parser->drop && parser->mark)
 781                 parser->mark = 0;
 782         if (!parser->queues_n && !parser->drop) {
 783                 rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_HANDLE,
 784                                    NULL, "no valid action");
 785                 return -rte_errno;
 786         }
 787         return 0;
 788 exit_action_not_supported:
 789         rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION,
 790                            actions, "action not supported");
 791         return -rte_errno;
 792 }
 793
 794 /**
 795  * Validate items.
 796  *
 797  * @param priv
 798  *   Pointer to private structure.
 799  * @param[in] items
 800  *   Pattern specification (list terminated by the END pattern item).
 801  * @param[out] error
 802  *   Perform verbose error reporting if not NULL.
 803  * @param[in, out] parser
 804  *   Internal parser structure.
 805  *
 806  * @return
 807  *   0 on success, a negative errno value otherwise and rte_errno is set.
 808  */
 809 static int
 810 priv_flow_convert_items_validate(struct priv *priv,
 811                                  const struct rte_flow_item items[],
 812                                  struct rte_flow_error *error,
 813                                  struct mlx5_flow_parse *parser)
 814 {
 815         const struct mlx5_flow_items *cur_item = mlx5_flow_items;
 816         unsigned int i;
 817
 818         (void)priv;
 819         /* Initialise the offsets to start after verbs attribute. */
 820         for (i = 0; i != hash_rxq_init_n; ++i)
 821                 parser->queue[i].offset = sizeof(struct ibv_flow_attr);
 822         for (; items->type != RTE_FLOW_ITEM_TYPE_END; ++items) {
 823                 const struct mlx5_flow_items *token = NULL;
 824                 unsigned int n;
 825                 int err;
 826
 827                 if (items->type == RTE_FLOW_ITEM_TYPE_VOID)
 828                         continue;
 829                 for (i = 0;
 830                      cur_item->items &&
 831                      cur_item->items[i] != RTE_FLOW_ITEM_TYPE_END;
 832                      ++i) {
 833                         if (cur_item->items[i] == items->type) {
 834                                 token = &mlx5_flow_items[items->type];
 835                                 break;
 836                         }
 837                 }
 838                 if (!token)
 839                         goto exit_item_not_supported;
 840                 cur_item = token;
 841                 err = mlx5_flow_item_validate(items,
 842                                               (const uint8_t *)cur_item->mask,
 843                                               cur_item->mask_sz);
 844                 if (err)
 845                         goto exit_item_not_supported;
 846                 if (items->type == RTE_FLOW_ITEM_TYPE_VXLAN) {
 847                         if (parser->inner) {
 848                                 rte_flow_error_set(error, ENOTSUP,
 849                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 850                                                    items,
 851                                                    "cannot recognize multiple"
 852                                                    " VXLAN encapsulations");
 853                                 return -rte_errno;
 854                         }
 855                         parser->inner = IBV_FLOW_SPEC_INNER;
 856                 }
 857                 if (parser->drop || parser->queues_n == 1) {
 858                         parser->queue[HASH_RXQ_ETH].offset += cur_item->dst_sz;
 859                 } else {
 860                         for (n = 0; n != hash_rxq_init_n; ++n)
 861                                 parser->queue[n].offset += cur_item->dst_sz;
 862                 }
 863         }
 864         if (parser->mark) {
 865                 for (i = 0; i != hash_rxq_init_n; ++i)
 866                         parser->queue[i].offset +=
 867                                 sizeof(struct ibv_flow_spec_action_tag);
 868         }
 869         if (parser->count) {
 870                 unsigned int size = sizeof(struct ibv_flow_spec_counter_action);
 871
 872                 for (i = 0; i != hash_rxq_init_n; ++i)
 873                         parser->queue[i].offset += size;
 874         }
 875         return 0;
 876 exit_item_not_supported:
 877         rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM,
 878                            items, "item not supported");
 879         return -rte_errno;
 880 }
 881
 882 /**
 883  * Allocate memory space to store verbs flow attributes.
 884  *
 885  * @param priv
 886  *   Pointer to private structure.
 887  * @param[in] priority
 888  *   Flow priority.
 889  * @param[in] size
 890  *   Amount of byte to allocate.
 891  * @param[out] error
 892  *   Perform verbose error reporting if not NULL.
 893  *
 894  * @return
 895  *   A verbs flow attribute on success, NULL otherwise.
 896  */
 897 static struct ibv_flow_attr*
 898 priv_flow_convert_allocate(struct priv *priv,
 899                            unsigned int priority,
 900                            unsigned int size,
 901                            struct rte_flow_error *error)
 902 {
 903         struct ibv_flow_attr *ibv_attr;
 904
 905         (void)priv;
 906         ibv_attr = rte_calloc(__func__, 1, size, 0);
 907         if (!ibv_attr) {
 908                 rte_flow_error_set(error, ENOMEM,
 909                                    RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 910                                    NULL,
 911                                    "cannot allocate verbs spec attributes.");
 912                 return NULL;
 913         }
 914         ibv_attr->priority = priority;
 915         return ibv_attr;
 916 }
 917
 918 /**
 919  * Finalise verbs flow attributes.
 920  *
 921  * @param priv
 922  *   Pointer to private structure.
 923  * @param[in, out] parser
 924  *   Internal parser structure.
 925  */
 926 static void
 927 priv_flow_convert_finalise(struct priv *priv, struct mlx5_flow_parse *parser)
 928 {
 929         const unsigned int ipv4 =
 930                 hash_rxq_init[parser->layer].ip_version == MLX5_IPV4;
 931         const enum hash_rxq_type hmin = ipv4 ? HASH_RXQ_TCPV4 : HASH_RXQ_TCPV6;
 932         const enum hash_rxq_type hmax = ipv4 ? HASH_RXQ_IPV4 : HASH_RXQ_IPV6;
 933         const enum hash_rxq_type ohmin = ipv4 ? HASH_RXQ_TCPV6 : HASH_RXQ_TCPV4;
 934         const enum hash_rxq_type ohmax = ipv4 ? HASH_RXQ_IPV6 : HASH_RXQ_IPV4;
 935         const enum hash_rxq_type ip = ipv4 ? HASH_RXQ_IPV4 : HASH_RXQ_IPV6;
 936         unsigned int i;
 937
 938         (void)priv;
 939         if (parser->layer == HASH_RXQ_ETH) {
 940                 goto fill;
 941         } else {
 942                 /*
 943                  * This layer becomes useless as the pattern define under
 944                  * layers.
 945                  */
 946                 rte_free(parser->queue[HASH_RXQ_ETH].ibv_attr);
 947                 parser->queue[HASH_RXQ_ETH].ibv_attr = NULL;
 948         }
 949         /* Remove opposite kind of layer e.g. IPv6 if the pattern is IPv4. */
 950         for (i = ohmin; i != (ohmax + 1); ++i) {
 951                 if (!parser->queue[i].ibv_attr)
 952                         continue;
 953                 rte_free(parser->queue[i].ibv_attr);
 954                 parser->queue[i].ibv_attr = NULL;
 955         }
 956         /* Remove impossible flow according to the RSS configuration. */
 957         if (hash_rxq_init[parser->layer].dpdk_rss_hf &
 958             parser->rss_conf.rss_hf) {
 959                 /* Remove any other flow. */
 960                 for (i = hmin; i != (hmax + 1); ++i) {
 961                         if ((i == parser->layer) ||
 962                              (!parser->queue[i].ibv_attr))
 963                                 continue;
 964                         rte_free(parser->queue[i].ibv_attr);
 965                         parser->queue[i].ibv_attr = NULL;
 966                 }
 967         } else  if (!parser->queue[ip].ibv_attr) {
 968                 /* no RSS possible with the current configuration. */
 969                 parser->queues_n = 1;
 970                 return;
 971         }
 972 fill:
 973         /*
 974          * Fill missing layers in verbs specifications, or compute the correct
 975          * offset to allocate the memory space for the attributes and
 976          * specifications.
 977          */
 978         for (i = 0; i != hash_rxq_init_n - 1; ++i) {
 979                 union {
 980                         struct ibv_flow_spec_ipv4_ext ipv4;
 981                         struct ibv_flow_spec_ipv6 ipv6;
 982                         struct ibv_flow_spec_tcp_udp udp_tcp;
 983                 } specs;
 984                 void *dst;
 985                 uint16_t size;
 986
 987                 if (i == parser->layer)
 988                         continue;
 989                 if (parser->layer == HASH_RXQ_ETH) {
 990                         if (hash_rxq_init[i].ip_version == MLX5_IPV4) {
 991                                 size = sizeof(struct ibv_flow_spec_ipv4_ext);
 992                                 specs.ipv4 = (struct ibv_flow_spec_ipv4_ext){
 993                                         .type = IBV_FLOW_SPEC_IPV4_EXT,
 994                                         .size = size,
 995                                 };
 996                         } else {
 997                                 size = sizeof(struct ibv_flow_spec_ipv6);
 998                                 specs.ipv6 = (struct ibv_flow_spec_ipv6){
 999                                         .type = IBV_FLOW_SPEC_IPV6,
1000                                         .size = size,
1001                                 };
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                 if ((i == HASH_RXQ_UDPV4) || (i == HASH_RXQ_TCPV4) ||
1013                     (i == HASH_RXQ_UDPV6) || (i == HASH_RXQ_TCPV6)) {
1014                         size = sizeof(struct ibv_flow_spec_tcp_udp);
1015                         specs.udp_tcp = (struct ibv_flow_spec_tcp_udp) {
1016                                 .type = ((i == HASH_RXQ_UDPV4 ||
1017                                           i == HASH_RXQ_UDPV6) ?
1018                                          IBV_FLOW_SPEC_UDP :
1019                                          IBV_FLOW_SPEC_TCP),
1020                                 .size = size,
1021                         };
1022                         if (parser->queue[i].ibv_attr) {
1023                                 dst = (void *)((uintptr_t)
1024                                                parser->queue[i].ibv_attr +
1025                                                parser->queue[i].offset);
1026                                 memcpy(dst, &specs, size);
1027                                 ++parser->queue[i].ibv_attr->num_of_specs;
1028                         }
1029                         parser->queue[i].offset += size;
1030                 }
1031         }
1032 }
1033
1034 /**
1035  * Validate and convert a flow supported by the NIC.
1036  *
1037  * @param priv
1038  *   Pointer to private structure.
1039  * @param[in] attr
1040  *   Flow rule attributes.
1041  * @param[in] pattern
1042  *   Pattern specification (list terminated by the END pattern item).
1043  * @param[in] actions
1044  *   Associated actions (list terminated by the END action).
1045  * @param[out] error
1046  *   Perform verbose error reporting if not NULL.
1047  * @param[in, out] parser
1048  *   Internal parser structure.
1049  *
1050  * @return
1051  *   0 on success, a negative errno value otherwise and rte_errno is set.
1052  */
1053 static int
1054 priv_flow_convert(struct priv *priv,
1055                   const struct rte_flow_attr *attr,
1056                   const struct rte_flow_item items[],
1057                   const struct rte_flow_action actions[],
1058                   struct rte_flow_error *error,
1059                   struct mlx5_flow_parse *parser)
1060 {
1061         const struct mlx5_flow_items *cur_item = mlx5_flow_items;
1062         unsigned int i;
1063         int ret;
1064
1065         /* First step. Validate the attributes, items and actions. */
1066         *parser = (struct mlx5_flow_parse){
1067                 .create = parser->create,
1068                 .layer = HASH_RXQ_ETH,
1069                 .mark_id = MLX5_FLOW_MARK_DEFAULT,
1070         };
1071         ret = priv_flow_convert_attributes(priv, attr, error, parser);
1072         if (ret)
1073                 return ret;
1074         ret = priv_flow_convert_actions(priv, actions, error, parser);
1075         if (ret)
1076                 return ret;
1077         ret = priv_flow_convert_items_validate(priv, items, error, parser);
1078         if (ret)
1079                 return ret;
1080         priv_flow_convert_finalise(priv, parser);
1081         /*
1082          * Second step.
1083          * Allocate the memory space to store verbs specifications.
1084          */
1085         if (parser->drop || parser->queues_n == 1) {
1086                 unsigned int priority =
1087                         attr->priority +
1088                         hash_rxq_init[HASH_RXQ_ETH].flow_priority;
1089                 unsigned int offset = parser->queue[HASH_RXQ_ETH].offset;
1090
1091                 parser->queue[HASH_RXQ_ETH].ibv_attr =
1092                         priv_flow_convert_allocate(priv, priority,
1093                                                    offset, error);
1094                 if (!parser->queue[HASH_RXQ_ETH].ibv_attr)
1095                         return ENOMEM;
1096                 parser->queue[HASH_RXQ_ETH].offset =
1097                         sizeof(struct ibv_flow_attr);
1098         } else {
1099                 for (i = 0; i != hash_rxq_init_n; ++i) {
1100                         unsigned int priority =
1101                                 attr->priority +
1102                                 hash_rxq_init[i].flow_priority;
1103                         unsigned int offset;
1104
1105                         if (!(parser->rss_conf.rss_hf &
1106                               hash_rxq_init[i].dpdk_rss_hf) &&
1107                             (i != HASH_RXQ_ETH))
1108                                 continue;
1109                         offset = parser->queue[i].offset;
1110                         parser->queue[i].ibv_attr =
1111                                 priv_flow_convert_allocate(priv, priority,
1112                                                            offset, error);
1113                         if (!parser->queue[i].ibv_attr)
1114                                 goto exit_enomem;
1115                         parser->queue[i].offset = sizeof(struct ibv_flow_attr);
1116                 }
1117         }
1118         /* Third step. Conversion parse, fill the specifications. */
1119         parser->inner = 0;
1120         for (; items->type != RTE_FLOW_ITEM_TYPE_END; ++items) {
1121                 if (items->type == RTE_FLOW_ITEM_TYPE_VOID)
1122                         continue;
1123                 cur_item = &mlx5_flow_items[items->type];
1124                 ret = cur_item->convert(items,
1125                                         (cur_item->default_mask ?
1126                                          cur_item->default_mask :
1127                                          cur_item->mask),
1128                                         parser);
1129                 if (ret) {
1130                         rte_flow_error_set(error, ret,
1131                                            RTE_FLOW_ERROR_TYPE_ITEM,
1132                                            items, "item not supported");
1133                         goto exit_free;
1134                 }
1135         }
1136         if (parser->mark)
1137                 mlx5_flow_create_flag_mark(parser, parser->mark_id);
1138         if (parser->count && parser->create) {
1139                 mlx5_flow_create_count(priv, parser);
1140                 if (!parser->cs)
1141                         goto exit_count_error;
1142         }
1143         /*
1144          * Last step. Complete missing specification to reach the RSS
1145          * configuration.
1146          */
1147         if (parser->queues_n > 1) {
1148                 priv_flow_convert_finalise(priv, parser);
1149         } else {
1150                 /*
1151                  * Action queue have their priority overridden with
1152                  * Ethernet priority, this priority needs to be adjusted to
1153                  * their most specific layer priority.
1154                  */
1155                 parser->queue[HASH_RXQ_ETH].ibv_attr->priority =
1156                         attr->priority +
1157                         hash_rxq_init[parser->layer].flow_priority;
1158         }
1159 exit_free:
1160         /* Only verification is expected, all resources should be released. */
1161         if (!parser->create) {
1162                 for (i = 0; i != hash_rxq_init_n; ++i) {
1163                         if (parser->queue[i].ibv_attr) {
1164                                 rte_free(parser->queue[i].ibv_attr);
1165                                 parser->queue[i].ibv_attr = NULL;
1166                         }
1167                 }
1168         }
1169         if (parser->allmulti &&
1170             parser->layer == HASH_RXQ_ETH) {
1171                 for (i = 0; i != hash_rxq_init_n; ++i) {
1172                         if (!parser->queue[i].ibv_attr)
1173                                 continue;
1174                         if (parser->queue[i].ibv_attr->num_of_specs != 1)
1175                                 break;
1176                         parser->queue[i].ibv_attr->type =
1177                                                 IBV_FLOW_ATTR_MC_DEFAULT;
1178                 }
1179         }
1180         return ret;
1181 exit_enomem:
1182         for (i = 0; i != hash_rxq_init_n; ++i) {
1183                 if (parser->queue[i].ibv_attr) {
1184                         rte_free(parser->queue[i].ibv_attr);
1185                         parser->queue[i].ibv_attr = NULL;
1186                 }
1187         }
1188         rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1189                            NULL, "cannot allocate verbs spec attributes.");
1190         return ret;
1191 exit_count_error:
1192         rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1193                            NULL, "cannot create counter.");
1194         return rte_errno;
1195 }
1196
1197 /**
1198  * Copy the specification created into the flow.
1199  *
1200  * @param parser
1201  *   Internal parser structure.
1202  * @param src
1203  *   Create specification.
1204  * @param size
1205  *   Size in bytes of the specification to copy.
1206  */
1207 static void
1208 mlx5_flow_create_copy(struct mlx5_flow_parse *parser, void *src,
1209                       unsigned int size)
1210 {
1211         unsigned int i;
1212         void *dst;
1213
1214         for (i = 0; i != hash_rxq_init_n; ++i) {
1215                 if (!parser->queue[i].ibv_attr)
1216                         continue;
1217                 /* Specification must be the same l3 type or none. */
1218                 if (parser->layer == HASH_RXQ_ETH ||
1219                     (hash_rxq_init[parser->layer].ip_version ==
1220                      hash_rxq_init[i].ip_version) ||
1221                     (hash_rxq_init[i].ip_version == 0)) {
1222                         dst = (void *)((uintptr_t)parser->queue[i].ibv_attr +
1223                                         parser->queue[i].offset);
1224                         memcpy(dst, src, size);
1225                         ++parser->queue[i].ibv_attr->num_of_specs;
1226                         parser->queue[i].offset += size;
1227                 }
1228         }
1229 }
1230
1231 /**
1232  * Convert Ethernet item to Verbs specification.
1233  *
1234  * @param item[in]
1235  *   Item specification.
1236  * @param default_mask[in]
1237  *   Default bit-masks to use when item->mask is not provided.
1238  * @param data[in, out]
1239  *   User structure.
1240  */
1241 static int
1242 mlx5_flow_create_eth(const struct rte_flow_item *item,
1243                      const void *default_mask,
1244                      void *data)
1245 {
1246         const struct rte_flow_item_eth *spec = item->spec;
1247         const struct rte_flow_item_eth *mask = item->mask;
1248         struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data;
1249         const unsigned int eth_size = sizeof(struct ibv_flow_spec_eth);
1250         struct ibv_flow_spec_eth eth = {
1251                 .type = parser->inner | IBV_FLOW_SPEC_ETH,
1252                 .size = eth_size,
1253         };
1254
1255         /* Don't update layer for the inner pattern. */
1256         if (!parser->inner)
1257                 parser->layer = HASH_RXQ_ETH;
1258         if (spec) {
1259                 unsigned int i;
1260
1261                 if (!mask)
1262                         mask = default_mask;
1263                 memcpy(&eth.val.dst_mac, spec->dst.addr_bytes, ETHER_ADDR_LEN);
1264                 memcpy(&eth.val.src_mac, spec->src.addr_bytes, ETHER_ADDR_LEN);
1265                 eth.val.ether_type = spec->type;
1266                 memcpy(&eth.mask.dst_mac, mask->dst.addr_bytes, ETHER_ADDR_LEN);
1267                 memcpy(&eth.mask.src_mac, mask->src.addr_bytes, ETHER_ADDR_LEN);
1268                 eth.mask.ether_type = mask->type;
1269                 /* Remove unwanted bits from values. */
1270                 for (i = 0; i < ETHER_ADDR_LEN; ++i) {
1271                         eth.val.dst_mac[i] &= eth.mask.dst_mac[i];
1272                         eth.val.src_mac[i] &= eth.mask.src_mac[i];
1273                 }
1274                 eth.val.ether_type &= eth.mask.ether_type;
1275         }
1276         mlx5_flow_create_copy(parser, &eth, eth_size);
1277         parser->allmulti = eth.val.dst_mac[0] & 1;
1278         return 0;
1279 }
1280
1281 /**
1282  * Convert VLAN item to Verbs specification.
1283  *
1284  * @param item[in]
1285  *   Item specification.
1286  * @param default_mask[in]
1287  *   Default bit-masks to use when item->mask is not provided.
1288  * @param data[in, out]
1289  *   User structure.
1290  */
1291 static int
1292 mlx5_flow_create_vlan(const struct rte_flow_item *item,
1293                       const void *default_mask,
1294                       void *data)
1295 {
1296         const struct rte_flow_item_vlan *spec = item->spec;
1297         const struct rte_flow_item_vlan *mask = item->mask;
1298         struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data;
1299         struct ibv_flow_spec_eth *eth;
1300         const unsigned int eth_size = sizeof(struct ibv_flow_spec_eth);
1301
1302         if (spec) {
1303                 unsigned int i;
1304                 if (!mask)
1305                         mask = default_mask;
1306
1307                 for (i = 0; i != hash_rxq_init_n; ++i) {
1308                         if (!parser->queue[i].ibv_attr)
1309                                 continue;
1310
1311                         eth = (void *)((uintptr_t)parser->queue[i].ibv_attr +
1312                                        parser->queue[i].offset - eth_size);
1313                         eth->val.vlan_tag = spec->tci;
1314                         eth->mask.vlan_tag = mask->tci;
1315                         eth->val.vlan_tag &= eth->mask.vlan_tag;
1316                 }
1317         }
1318         return 0;
1319 }
1320
1321 /**
1322  * Convert IPv4 item to Verbs specification.
1323  *
1324  * @param item[in]
1325  *   Item specification.
1326  * @param default_mask[in]
1327  *   Default bit-masks to use when item->mask is not provided.
1328  * @param data[in, out]
1329  *   User structure.
1330  */
1331 static int
1332 mlx5_flow_create_ipv4(const struct rte_flow_item *item,
1333                       const void *default_mask,
1334                       void *data)
1335 {
1336         const struct rte_flow_item_ipv4 *spec = item->spec;
1337         const struct rte_flow_item_ipv4 *mask = item->mask;
1338         struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data;
1339         unsigned int ipv4_size = sizeof(struct ibv_flow_spec_ipv4_ext);
1340         struct ibv_flow_spec_ipv4_ext ipv4 = {
1341                 .type = parser->inner | IBV_FLOW_SPEC_IPV4_EXT,
1342                 .size = ipv4_size,
1343         };
1344
1345         /* Don't update layer for the inner pattern. */
1346         if (!parser->inner)
1347                 parser->layer = HASH_RXQ_IPV4;
1348         if (spec) {
1349                 if (!mask)
1350                         mask = default_mask;
1351                 ipv4.val = (struct ibv_flow_ipv4_ext_filter){
1352                         .src_ip = spec->hdr.src_addr,
1353                         .dst_ip = spec->hdr.dst_addr,
1354                         .proto = spec->hdr.next_proto_id,
1355                         .tos = spec->hdr.type_of_service,
1356                 };
1357                 ipv4.mask = (struct ibv_flow_ipv4_ext_filter){
1358                         .src_ip = mask->hdr.src_addr,
1359                         .dst_ip = mask->hdr.dst_addr,
1360                         .proto = mask->hdr.next_proto_id,
1361                         .tos = mask->hdr.type_of_service,
1362                 };
1363                 /* Remove unwanted bits from values. */
1364                 ipv4.val.src_ip &= ipv4.mask.src_ip;
1365                 ipv4.val.dst_ip &= ipv4.mask.dst_ip;
1366                 ipv4.val.proto &= ipv4.mask.proto;
1367                 ipv4.val.tos &= ipv4.mask.tos;
1368         }
1369         mlx5_flow_create_copy(parser, &ipv4, ipv4_size);
1370         return 0;
1371 }
1372
1373 /**
1374  * Convert IPv6 item to Verbs specification.
1375  *
1376  * @param item[in]
1377  *   Item specification.
1378  * @param default_mask[in]
1379  *   Default bit-masks to use when item->mask is not provided.
1380  * @param data[in, out]
1381  *   User structure.
1382  */
1383 static int
1384 mlx5_flow_create_ipv6(const struct rte_flow_item *item,
1385                       const void *default_mask,
1386                       void *data)
1387 {
1388         const struct rte_flow_item_ipv6 *spec = item->spec;
1389         const struct rte_flow_item_ipv6 *mask = item->mask;
1390         struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data;
1391         unsigned int ipv6_size = sizeof(struct ibv_flow_spec_ipv6);
1392         struct ibv_flow_spec_ipv6 ipv6 = {
1393                 .type = parser->inner | IBV_FLOW_SPEC_IPV6,
1394                 .size = ipv6_size,
1395         };
1396
1397         /* Don't update layer for the inner pattern. */
1398         if (!parser->inner)
1399                 parser->layer = HASH_RXQ_IPV6;
1400         if (spec) {
1401                 unsigned int i;
1402
1403                 if (!mask)
1404                         mask = default_mask;
1405                 memcpy(&ipv6.val.src_ip, spec->hdr.src_addr,
1406                        RTE_DIM(ipv6.val.src_ip));
1407                 memcpy(&ipv6.val.dst_ip, spec->hdr.dst_addr,
1408                        RTE_DIM(ipv6.val.dst_ip));
1409                 memcpy(&ipv6.mask.src_ip, mask->hdr.src_addr,
1410                        RTE_DIM(ipv6.mask.src_ip));
1411                 memcpy(&ipv6.mask.dst_ip, mask->hdr.dst_addr,
1412                        RTE_DIM(ipv6.mask.dst_ip));
1413                 ipv6.mask.flow_label = mask->hdr.vtc_flow;
1414                 ipv6.mask.next_hdr = mask->hdr.proto;
1415                 ipv6.mask.hop_limit = mask->hdr.hop_limits;
1416                 /* Remove unwanted bits from values. */
1417                 for (i = 0; i < RTE_DIM(ipv6.val.src_ip); ++i) {
1418                         ipv6.val.src_ip[i] &= ipv6.mask.src_ip[i];
1419                         ipv6.val.dst_ip[i] &= ipv6.mask.dst_ip[i];
1420                 }
1421                 ipv6.val.flow_label &= ipv6.mask.flow_label;
1422                 ipv6.val.next_hdr &= ipv6.mask.next_hdr;
1423                 ipv6.val.hop_limit &= ipv6.mask.hop_limit;
1424         }
1425         mlx5_flow_create_copy(parser, &ipv6, ipv6_size);
1426         return 0;
1427 }
1428
1429 /**
1430  * Convert UDP item to Verbs specification.
1431  *
1432  * @param item[in]
1433  *   Item specification.
1434  * @param default_mask[in]
1435  *   Default bit-masks to use when item->mask is not provided.
1436  * @param data[in, out]
1437  *   User structure.
1438  */
1439 static int
1440 mlx5_flow_create_udp(const struct rte_flow_item *item,
1441                      const void *default_mask,
1442                      void *data)
1443 {
1444         const struct rte_flow_item_udp *spec = item->spec;
1445         const struct rte_flow_item_udp *mask = item->mask;
1446         struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data;
1447         unsigned int udp_size = sizeof(struct ibv_flow_spec_tcp_udp);
1448         struct ibv_flow_spec_tcp_udp udp = {
1449                 .type = parser->inner | IBV_FLOW_SPEC_UDP,
1450                 .size = udp_size,
1451         };
1452
1453         /* Don't update layer for the inner pattern. */
1454         if (!parser->inner) {
1455                 if (parser->layer == HASH_RXQ_IPV4)
1456                         parser->layer = HASH_RXQ_UDPV4;
1457                 else
1458                         parser->layer = HASH_RXQ_UDPV6;
1459         }
1460         if (spec) {
1461                 if (!mask)
1462                         mask = default_mask;
1463                 udp.val.dst_port = spec->hdr.dst_port;
1464                 udp.val.src_port = spec->hdr.src_port;
1465                 udp.mask.dst_port = mask->hdr.dst_port;
1466                 udp.mask.src_port = mask->hdr.src_port;
1467                 /* Remove unwanted bits from values. */
1468                 udp.val.src_port &= udp.mask.src_port;
1469                 udp.val.dst_port &= udp.mask.dst_port;
1470         }
1471         mlx5_flow_create_copy(parser, &udp, udp_size);
1472         return 0;
1473 }
1474
1475 /**
1476  * Convert TCP item to Verbs specification.
1477  *
1478  * @param item[in]
1479  *   Item specification.
1480  * @param default_mask[in]
1481  *   Default bit-masks to use when item->mask is not provided.
1482  * @param data[in, out]
1483  *   User structure.
1484  */
1485 static int
1486 mlx5_flow_create_tcp(const struct rte_flow_item *item,
1487                      const void *default_mask,
1488                      void *data)
1489 {
1490         const struct rte_flow_item_tcp *spec = item->spec;
1491         const struct rte_flow_item_tcp *mask = item->mask;
1492         struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data;
1493         unsigned int tcp_size = sizeof(struct ibv_flow_spec_tcp_udp);
1494         struct ibv_flow_spec_tcp_udp tcp = {
1495                 .type = parser->inner | IBV_FLOW_SPEC_TCP,
1496                 .size = tcp_size,
1497         };
1498
1499         /* Don't update layer for the inner pattern. */
1500         if (!parser->inner) {
1501                 if (parser->layer == HASH_RXQ_IPV4)
1502                         parser->layer = HASH_RXQ_TCPV4;
1503                 else
1504                         parser->layer = HASH_RXQ_TCPV6;
1505         }
1506         if (spec) {
1507                 if (!mask)
1508                         mask = default_mask;
1509                 tcp.val.dst_port = spec->hdr.dst_port;
1510                 tcp.val.src_port = spec->hdr.src_port;
1511                 tcp.mask.dst_port = mask->hdr.dst_port;
1512                 tcp.mask.src_port = mask->hdr.src_port;
1513                 /* Remove unwanted bits from values. */
1514                 tcp.val.src_port &= tcp.mask.src_port;
1515                 tcp.val.dst_port &= tcp.mask.dst_port;
1516         }
1517         mlx5_flow_create_copy(parser, &tcp, tcp_size);
1518         return 0;
1519 }
1520
1521 /**
1522  * Convert VXLAN item to Verbs specification.
1523  *
1524  * @param item[in]
1525  *   Item specification.
1526  * @param default_mask[in]
1527  *   Default bit-masks to use when item->mask is not provided.
1528  * @param data[in, out]
1529  *   User structure.
1530  */
1531 static int
1532 mlx5_flow_create_vxlan(const struct rte_flow_item *item,
1533                        const void *default_mask,
1534                        void *data)
1535 {
1536         const struct rte_flow_item_vxlan *spec = item->spec;
1537         const struct rte_flow_item_vxlan *mask = item->mask;
1538         struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data;
1539         unsigned int size = sizeof(struct ibv_flow_spec_tunnel);
1540         struct ibv_flow_spec_tunnel vxlan = {
1541                 .type = parser->inner | IBV_FLOW_SPEC_VXLAN_TUNNEL,
1542                 .size = size,
1543         };
1544         union vni {
1545                 uint32_t vlan_id;
1546                 uint8_t vni[4];
1547         } id;
1548
1549         id.vni[0] = 0;
1550         parser->inner = IBV_FLOW_SPEC_INNER;
1551         if (spec) {
1552                 if (!mask)
1553                         mask = default_mask;
1554                 memcpy(&id.vni[1], spec->vni, 3);
1555                 vxlan.val.tunnel_id = id.vlan_id;
1556                 memcpy(&id.vni[1], mask->vni, 3);
1557                 vxlan.mask.tunnel_id = id.vlan_id;
1558                 /* Remove unwanted bits from values. */
1559                 vxlan.val.tunnel_id &= vxlan.mask.tunnel_id;
1560         }
1561         /*
1562          * Tunnel id 0 is equivalent as not adding a VXLAN layer, if only this
1563          * layer is defined in the Verbs specification it is interpreted as
1564          * wildcard and all packets will match this rule, if it follows a full
1565          * stack layer (ex: eth / ipv4 / udp), all packets matching the layers
1566          * before will also match this rule.
1567          * To avoid such situation, VNI 0 is currently refused.
1568          */
1569         if (!vxlan.val.tunnel_id)
1570                 return EINVAL;
1571         mlx5_flow_create_copy(parser, &vxlan, size);
1572         return 0;
1573 }
1574
1575 /**
1576  * Convert mark/flag action to Verbs specification.
1577  *
1578  * @param parser
1579  *   Internal parser structure.
1580  * @param mark_id
1581  *   Mark identifier.
1582  */
1583 static int
1584 mlx5_flow_create_flag_mark(struct mlx5_flow_parse *parser, uint32_t mark_id)
1585 {
1586         unsigned int size = sizeof(struct ibv_flow_spec_action_tag);
1587         struct ibv_flow_spec_action_tag tag = {
1588                 .type = IBV_FLOW_SPEC_ACTION_TAG,
1589                 .size = size,
1590                 .tag_id = mlx5_flow_mark_set(mark_id),
1591         };
1592
1593         assert(parser->mark);
1594         mlx5_flow_create_copy(parser, &tag, size);
1595         return 0;
1596 }
1597
1598 /**
1599  * Convert count action to Verbs specification.
1600  *
1601  * @param priv
1602  *   Pointer to private structure.
1603  * @param parser
1604  *   Pointer to MLX5 flow parser structure.
1605  *
1606  * @return
1607  *   0 on success, errno value on failure.
1608  */
1609 static int
1610 mlx5_flow_create_count(struct priv *priv __rte_unused,
1611                        struct mlx5_flow_parse *parser __rte_unused)
1612 {
1613 #ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT
1614         unsigned int size = sizeof(struct ibv_flow_spec_counter_action);
1615         struct ibv_counter_set_init_attr init_attr = {0};
1616         struct ibv_flow_spec_counter_action counter = {
1617                 .type = IBV_FLOW_SPEC_ACTION_COUNT,
1618                 .size = size,
1619                 .counter_set_handle = 0,
1620         };
1621
1622         init_attr.counter_set_id = 0;
1623         parser->cs = ibv_create_counter_set(priv->ctx, &init_attr);
1624         if (!parser->cs)
1625                 return EINVAL;
1626         counter.counter_set_handle = parser->cs->handle;
1627         mlx5_flow_create_copy(parser, &counter, size);
1628 #endif
1629         return 0;
1630 }
1631
1632 /**
1633  * Complete flow rule creation with a drop queue.
1634  *
1635  * @param priv
1636  *   Pointer to private structure.
1637  * @param parser
1638  *   Internal parser structure.
1639  * @param flow
1640  *   Pointer to the rte_flow.
1641  * @param[out] error
1642  *   Perform verbose error reporting if not NULL.
1643  *
1644  * @return
1645  *   0 on success, errno value on failure.
1646  */
1647 static int
1648 priv_flow_create_action_queue_drop(struct priv *priv,
1649                                    struct mlx5_flow_parse *parser,
1650                                    struct rte_flow *flow,
1651                                    struct rte_flow_error *error)
1652 {
1653         struct ibv_flow_spec_action_drop *drop;
1654         unsigned int size = sizeof(struct ibv_flow_spec_action_drop);
1655         int err = 0;
1656
1657         assert(priv->pd);
1658         assert(priv->ctx);
1659         flow->drop = 1;
1660         drop = (void *)((uintptr_t)parser->queue[HASH_RXQ_ETH].ibv_attr +
1661                         parser->queue[HASH_RXQ_ETH].offset);
1662         *drop = (struct ibv_flow_spec_action_drop){
1663                         .type = IBV_FLOW_SPEC_ACTION_DROP,
1664                         .size = size,
1665         };
1666         ++parser->queue[HASH_RXQ_ETH].ibv_attr->num_of_specs;
1667         parser->queue[HASH_RXQ_ETH].offset += size;
1668         flow->frxq[HASH_RXQ_ETH].ibv_attr =
1669                 parser->queue[HASH_RXQ_ETH].ibv_attr;
1670         if (parser->count)
1671                 flow->cs = parser->cs;
1672         if (!priv->dev->data->dev_started)
1673                 return 0;
1674         parser->queue[HASH_RXQ_ETH].ibv_attr = NULL;
1675         flow->frxq[HASH_RXQ_ETH].ibv_flow =
1676                 ibv_create_flow(priv->flow_drop_queue->qp,
1677                                 flow->frxq[HASH_RXQ_ETH].ibv_attr);
1678         if (!flow->frxq[HASH_RXQ_ETH].ibv_flow) {
1679                 rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE,
1680                                    NULL, "flow rule creation failure");
1681                 err = ENOMEM;
1682                 goto error;
1683         }
1684         return 0;
1685 error:
1686         assert(flow);
1687         if (flow->frxq[HASH_RXQ_ETH].ibv_flow) {
1688                 claim_zero(ibv_destroy_flow(flow->frxq[HASH_RXQ_ETH].ibv_flow));
1689                 flow->frxq[HASH_RXQ_ETH].ibv_flow = NULL;
1690         }
1691         if (flow->frxq[HASH_RXQ_ETH].ibv_attr) {
1692                 rte_free(flow->frxq[HASH_RXQ_ETH].ibv_attr);
1693                 flow->frxq[HASH_RXQ_ETH].ibv_attr = NULL;
1694         }
1695         if (flow->cs) {
1696                 claim_zero(ibv_destroy_counter_set(flow->cs));
1697                 flow->cs = NULL;
1698                 parser->cs = NULL;
1699         }
1700         return err;
1701 }
1702
1703 /**
1704  * Create hash Rx queues when RSS is enabled.
1705  *
1706  * @param priv
1707  *   Pointer to private structure.
1708  * @param parser
1709  *   Internal parser structure.
1710  * @param flow
1711  *   Pointer to the rte_flow.
1712  * @param[out] error
1713  *   Perform verbose error reporting if not NULL.
1714  *
1715  * @return
1716  *   0 on success, a errno value otherwise and rte_errno is set.
1717  */
1718 static int
1719 priv_flow_create_action_queue_rss(struct priv *priv,
1720                                   struct mlx5_flow_parse *parser,
1721                                   struct rte_flow *flow,
1722                                   struct rte_flow_error *error)
1723 {
1724         unsigned int i;
1725
1726         for (i = 0; i != hash_rxq_init_n; ++i) {
1727                 uint64_t hash_fields;
1728
1729                 if (!parser->queue[i].ibv_attr)
1730                         continue;
1731                 flow->frxq[i].ibv_attr = parser->queue[i].ibv_attr;
1732                 parser->queue[i].ibv_attr = NULL;
1733                 hash_fields = hash_rxq_init[i].hash_fields;
1734                 if (!priv->dev->data->dev_started)
1735                         continue;
1736                 flow->frxq[i].hrxq =
1737                         mlx5_priv_hrxq_get(priv,
1738                                            parser->rss_conf.rss_key,
1739                                            parser->rss_conf.rss_key_len,
1740                                            hash_fields,
1741                                            parser->queues,
1742                                            parser->queues_n);
1743                 if (flow->frxq[i].hrxq)
1744                         continue;
1745                 flow->frxq[i].hrxq =
1746                         mlx5_priv_hrxq_new(priv,
1747                                            parser->rss_conf.rss_key,
1748                                            parser->rss_conf.rss_key_len,
1749                                            hash_fields,
1750                                            parser->queues,
1751                                            parser->queues_n);
1752                 if (!flow->frxq[i].hrxq) {
1753                         rte_flow_error_set(error, ENOMEM,
1754                                            RTE_FLOW_ERROR_TYPE_HANDLE,
1755                                            NULL, "cannot create hash rxq");
1756                         return ENOMEM;
1757                 }
1758         }
1759         return 0;
1760 }
1761
1762 /**
1763  * Complete flow rule creation.
1764  *
1765  * @param priv
1766  *   Pointer to private structure.
1767  * @param parser
1768  *   Internal parser structure.
1769  * @param flow
1770  *   Pointer to the rte_flow.
1771  * @param[out] error
1772  *   Perform verbose error reporting if not NULL.
1773  *
1774  * @return
1775  *   0 on success, a errno value otherwise and rte_errno is set.
1776  */
1777 static int
1778 priv_flow_create_action_queue(struct priv *priv,
1779                               struct mlx5_flow_parse *parser,
1780                               struct rte_flow *flow,
1781                               struct rte_flow_error *error)
1782 {
1783         int err = 0;
1784         unsigned int i;
1785
1786         assert(priv->pd);
1787         assert(priv->ctx);
1788         assert(!parser->drop);
1789         err = priv_flow_create_action_queue_rss(priv, parser, flow, error);
1790         if (err)
1791                 goto error;
1792         if (parser->count)
1793                 flow->cs = parser->cs;
1794         if (!priv->dev->data->dev_started)
1795                 return 0;
1796         for (i = 0; i != hash_rxq_init_n; ++i) {
1797                 if (!flow->frxq[i].hrxq)
1798                         continue;
1799                 flow->frxq[i].ibv_flow =
1800                         ibv_create_flow(flow->frxq[i].hrxq->qp,
1801                                         flow->frxq[i].ibv_attr);
1802                 if (!flow->frxq[i].ibv_flow) {
1803                         rte_flow_error_set(error, ENOMEM,
1804                                            RTE_FLOW_ERROR_TYPE_HANDLE,
1805                                            NULL, "flow rule creation failure");
1806                         err = ENOMEM;
1807                         goto error;
1808                 }
1809                 DEBUG("%p type %d QP %p ibv_flow %p",
1810                       (void *)flow, i,
1811                       (void *)flow->frxq[i].hrxq,
1812                       (void *)flow->frxq[i].ibv_flow);
1813         }
1814         for (i = 0; i != parser->queues_n; ++i) {
1815                 struct mlx5_rxq_data *q =
1816                         (*priv->rxqs)[parser->queues[i]];
1817
1818                 q->mark |= parser->mark;
1819         }
1820         return 0;
1821 error:
1822         assert(flow);
1823         for (i = 0; i != hash_rxq_init_n; ++i) {
1824                 if (flow->frxq[i].ibv_flow) {
1825                         struct ibv_flow *ibv_flow = flow->frxq[i].ibv_flow;
1826
1827                         claim_zero(ibv_destroy_flow(ibv_flow));
1828                 }
1829                 if (flow->frxq[i].hrxq)
1830                         mlx5_priv_hrxq_release(priv, flow->frxq[i].hrxq);
1831                 if (flow->frxq[i].ibv_attr)
1832                         rte_free(flow->frxq[i].ibv_attr);
1833         }
1834         if (flow->cs) {
1835                 claim_zero(ibv_destroy_counter_set(flow->cs));
1836                 flow->cs = NULL;
1837                 parser->cs = NULL;
1838         }
1839         return err;
1840 }
1841
1842 /**
1843  * Convert a flow.
1844  *
1845  * @param priv
1846  *   Pointer to private structure.
1847  * @param list
1848  *   Pointer to a TAILQ flow list.
1849  * @param[in] attr
1850  *   Flow rule attributes.
1851  * @param[in] pattern
1852  *   Pattern specification (list terminated by the END pattern item).
1853  * @param[in] actions
1854  *   Associated actions (list terminated by the END action).
1855  * @param[out] error
1856  *   Perform verbose error reporting if not NULL.
1857  *
1858  * @return
1859  *   A flow on success, NULL otherwise.
1860  */
1861 static struct rte_flow *
1862 priv_flow_create(struct priv *priv,
1863                  struct mlx5_flows *list,
1864                  const struct rte_flow_attr *attr,
1865                  const struct rte_flow_item items[],
1866                  const struct rte_flow_action actions[],
1867                  struct rte_flow_error *error)
1868 {
1869         struct mlx5_flow_parse parser = { .create = 1, };
1870         struct rte_flow *flow = NULL;
1871         unsigned int i;
1872         int err;
1873
1874         err = priv_flow_convert(priv, attr, items, actions, error, &parser);
1875         if (err)
1876                 goto exit;
1877         flow = rte_calloc(__func__, 1,
1878                           sizeof(*flow) + parser.queues_n * sizeof(uint16_t),
1879                           0);
1880         if (!flow) {
1881                 rte_flow_error_set(error, ENOMEM,
1882                                    RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1883                                    NULL,
1884                                    "cannot allocate flow memory");
1885                 return NULL;
1886         }
1887         /* Copy queues configuration. */
1888         flow->queues = (uint16_t (*)[])(flow + 1);
1889         memcpy(flow->queues, parser.queues, parser.queues_n * sizeof(uint16_t));
1890         flow->queues_n = parser.queues_n;
1891         flow->mark = parser.mark;
1892         /* Copy RSS configuration. */
1893         flow->rss_conf = parser.rss_conf;
1894         flow->rss_conf.rss_key = flow->rss_key;
1895         memcpy(flow->rss_key, parser.rss_key, parser.rss_conf.rss_key_len);
1896         /* finalise the flow. */
1897         if (parser.drop)
1898                 err = priv_flow_create_action_queue_drop(priv, &parser, flow,
1899                                                          error);
1900         else
1901                 err = priv_flow_create_action_queue(priv, &parser, flow, error);
1902         if (err)
1903                 goto exit;
1904         TAILQ_INSERT_TAIL(list, flow, next);
1905         DEBUG("Flow created %p", (void *)flow);
1906         return flow;
1907 exit:
1908         for (i = 0; i != hash_rxq_init_n; ++i) {
1909                 if (parser.queue[i].ibv_attr)
1910                         rte_free(parser.queue[i].ibv_attr);
1911         }
1912         rte_free(flow);
1913         return NULL;
1914 }
1915
1916 /**
1917  * Validate a flow supported by the NIC.
1918  *
1919  * @see rte_flow_validate()
1920  * @see rte_flow_ops
1921  */
1922 int
1923 mlx5_flow_validate(struct rte_eth_dev *dev,
1924                    const struct rte_flow_attr *attr,
1925                    const struct rte_flow_item items[],
1926                    const struct rte_flow_action actions[],
1927                    struct rte_flow_error *error)
1928 {
1929         struct priv *priv = dev->data->dev_private;
1930         int ret;
1931         struct mlx5_flow_parse parser = { .create = 0, };
1932
1933         priv_lock(priv);
1934         ret = priv_flow_convert(priv, attr, items, actions, error, &parser);
1935         priv_unlock(priv);
1936         return ret;
1937 }
1938
1939 /**
1940  * Create a flow.
1941  *
1942  * @see rte_flow_create()
1943  * @see rte_flow_ops
1944  */
1945 struct rte_flow *
1946 mlx5_flow_create(struct rte_eth_dev *dev,
1947                  const struct rte_flow_attr *attr,
1948                  const struct rte_flow_item items[],
1949                  const struct rte_flow_action actions[],
1950                  struct rte_flow_error *error)
1951 {
1952         struct priv *priv = dev->data->dev_private;
1953         struct rte_flow *flow;
1954
1955         priv_lock(priv);
1956         flow = priv_flow_create(priv, &priv->flows, attr, items, actions,
1957                                 error);
1958         priv_unlock(priv);
1959         return flow;
1960 }
1961
1962 /**
1963  * Destroy a flow.
1964  *
1965  * @param priv
1966  *   Pointer to private structure.
1967  * @param list
1968  *   Pointer to a TAILQ flow list.
1969  * @param[in] flow
1970  *   Flow to destroy.
1971  */
1972 static void
1973 priv_flow_destroy(struct priv *priv,
1974                   struct mlx5_flows *list,
1975                   struct rte_flow *flow)
1976 {
1977         unsigned int i;
1978
1979         if (flow->drop || !flow->mark)
1980                 goto free;
1981         for (i = 0; i != flow->queues_n; ++i) {
1982                 struct rte_flow *tmp;
1983                 int mark = 0;
1984
1985                 /*
1986                  * To remove the mark from the queue, the queue must not be
1987                  * present in any other marked flow (RSS or not).
1988                  */
1989                 TAILQ_FOREACH(tmp, list, next) {
1990                         unsigned int j;
1991                         uint16_t *tqs = NULL;
1992                         uint16_t tq_n = 0;
1993
1994                         if (!tmp->mark)
1995                                 continue;
1996                         for (j = 0; j != hash_rxq_init_n; ++j) {
1997                                 if (!tmp->frxq[j].hrxq)
1998                                         continue;
1999                                 tqs = tmp->frxq[j].hrxq->ind_table->queues;
2000                                 tq_n = tmp->frxq[j].hrxq->ind_table->queues_n;
2001                         }
2002                         if (!tq_n)
2003                                 continue;
2004                         for (j = 0; (j != tq_n) && !mark; j++)
2005                                 if (tqs[j] == (*flow->queues)[i])
2006                                         mark = 1;
2007                 }
2008                 (*priv->rxqs)[(*flow->queues)[i]]->mark = mark;
2009         }
2010 free:
2011         if (flow->drop) {
2012                 if (flow->frxq[HASH_RXQ_ETH].ibv_flow)
2013                         claim_zero(ibv_destroy_flow
2014                                    (flow->frxq[HASH_RXQ_ETH].ibv_flow));
2015                 rte_free(flow->frxq[HASH_RXQ_ETH].ibv_attr);
2016         } else {
2017                 for (i = 0; i != hash_rxq_init_n; ++i) {
2018                         struct mlx5_flow *frxq = &flow->frxq[i];
2019
2020                         if (frxq->ibv_flow)
2021                                 claim_zero(ibv_destroy_flow(frxq->ibv_flow));
2022                         if (frxq->hrxq)
2023                                 mlx5_priv_hrxq_release(priv, frxq->hrxq);
2024                         if (frxq->ibv_attr)
2025                                 rte_free(frxq->ibv_attr);
2026                 }
2027         }
2028         if (flow->cs) {
2029                 claim_zero(ibv_destroy_counter_set(flow->cs));
2030                 flow->cs = NULL;
2031         }
2032         TAILQ_REMOVE(list, flow, next);
2033         DEBUG("Flow destroyed %p", (void *)flow);
2034         rte_free(flow);
2035 }
2036
2037 /**
2038  * Destroy all flows.
2039  *
2040  * @param priv
2041  *   Pointer to private structure.
2042  * @param list
2043  *   Pointer to a TAILQ flow list.
2044  */
2045 void
2046 priv_flow_flush(struct priv *priv, struct mlx5_flows *list)
2047 {
2048         while (!TAILQ_EMPTY(list)) {
2049                 struct rte_flow *flow;
2050
2051                 flow = TAILQ_FIRST(list);
2052                 priv_flow_destroy(priv, list, flow);
2053         }
2054 }
2055
2056 /**
2057  * Create drop queue.
2058  *
2059  * @param priv
2060  *   Pointer to private structure.
2061  *
2062  * @return
2063  *   0 on success.
2064  */
2065 int
2066 priv_flow_create_drop_queue(struct priv *priv)
2067 {
2068         struct mlx5_hrxq_drop *fdq = NULL;
2069
2070         assert(priv->pd);
2071         assert(priv->ctx);
2072         fdq = rte_calloc(__func__, 1, sizeof(*fdq), 0);
2073         if (!fdq) {
2074                 WARN("cannot allocate memory for drop queue");
2075                 goto error;
2076         }
2077         fdq->cq = ibv_create_cq(priv->ctx, 1, NULL, NULL, 0);
2078         if (!fdq->cq) {
2079                 WARN("cannot allocate CQ for drop queue");
2080                 goto error;
2081         }
2082         fdq->wq = ibv_create_wq(priv->ctx,
2083                         &(struct ibv_wq_init_attr){
2084                         .wq_type = IBV_WQT_RQ,
2085                         .max_wr = 1,
2086                         .max_sge = 1,
2087                         .pd = priv->pd,
2088                         .cq = fdq->cq,
2089                         });
2090         if (!fdq->wq) {
2091                 WARN("cannot allocate WQ for drop queue");
2092                 goto error;
2093         }
2094         fdq->ind_table = ibv_create_rwq_ind_table(priv->ctx,
2095                         &(struct ibv_rwq_ind_table_init_attr){
2096                         .log_ind_tbl_size = 0,
2097                         .ind_tbl = &fdq->wq,
2098                         .comp_mask = 0,
2099                         });
2100         if (!fdq->ind_table) {
2101                 WARN("cannot allocate indirection table for drop queue");
2102                 goto error;
2103         }
2104         fdq->qp = ibv_create_qp_ex(priv->ctx,
2105                 &(struct ibv_qp_init_attr_ex){
2106                         .qp_type = IBV_QPT_RAW_PACKET,
2107                         .comp_mask =
2108                                 IBV_QP_INIT_ATTR_PD |
2109                                 IBV_QP_INIT_ATTR_IND_TABLE |
2110                                 IBV_QP_INIT_ATTR_RX_HASH,
2111                         .rx_hash_conf = (struct ibv_rx_hash_conf){
2112                                 .rx_hash_function =
2113                                         IBV_RX_HASH_FUNC_TOEPLITZ,
2114                                 .rx_hash_key_len = rss_hash_default_key_len,
2115                                 .rx_hash_key = rss_hash_default_key,
2116                                 .rx_hash_fields_mask = 0,
2117                                 },
2118                         .rwq_ind_tbl = fdq->ind_table,
2119                         .pd = priv->pd
2120                 });
2121         if (!fdq->qp) {
2122                 WARN("cannot allocate QP for drop queue");
2123                 goto error;
2124         }
2125         priv->flow_drop_queue = fdq;
2126         return 0;
2127 error:
2128         if (fdq->qp)
2129                 claim_zero(ibv_destroy_qp(fdq->qp));
2130         if (fdq->ind_table)
2131                 claim_zero(ibv_destroy_rwq_ind_table(fdq->ind_table));
2132         if (fdq->wq)
2133                 claim_zero(ibv_destroy_wq(fdq->wq));
2134         if (fdq->cq)
2135                 claim_zero(ibv_destroy_cq(fdq->cq));
2136         if (fdq)
2137                 rte_free(fdq);
2138         priv->flow_drop_queue = NULL;
2139         return -1;
2140 }
2141
2142 /**
2143  * Delete drop queue.
2144  *
2145  * @param priv
2146  *   Pointer to private structure.
2147  */
2148 void
2149 priv_flow_delete_drop_queue(struct priv *priv)
2150 {
2151         struct mlx5_hrxq_drop *fdq = priv->flow_drop_queue;
2152
2153         if (!fdq)
2154                 return;
2155         if (fdq->qp)
2156                 claim_zero(ibv_destroy_qp(fdq->qp));
2157         if (fdq->ind_table)
2158                 claim_zero(ibv_destroy_rwq_ind_table(fdq->ind_table));
2159         if (fdq->wq)
2160                 claim_zero(ibv_destroy_wq(fdq->wq));
2161         if (fdq->cq)
2162                 claim_zero(ibv_destroy_cq(fdq->cq));
2163         rte_free(fdq);
2164         priv->flow_drop_queue = NULL;
2165 }
2166
2167 /**
2168  * Remove all flows.
2169  *
2170  * @param priv
2171  *   Pointer to private structure.
2172  * @param list
2173  *   Pointer to a TAILQ flow list.
2174  */
2175 void
2176 priv_flow_stop(struct priv *priv, struct mlx5_flows *list)
2177 {
2178         struct rte_flow *flow;
2179
2180         TAILQ_FOREACH_REVERSE(flow, list, mlx5_flows, next) {
2181                 unsigned int i;
2182
2183                 if (flow->drop) {
2184                         if (!flow->frxq[HASH_RXQ_ETH].ibv_flow)
2185                                 continue;
2186                         claim_zero(ibv_destroy_flow
2187                                    (flow->frxq[HASH_RXQ_ETH].ibv_flow));
2188                         flow->frxq[HASH_RXQ_ETH].ibv_flow = NULL;
2189                         /* Next flow. */
2190                         continue;
2191                 }
2192                 if (flow->mark) {
2193                         struct mlx5_ind_table_ibv *ind_tbl = NULL;
2194
2195                         for (i = 0; i != hash_rxq_init_n; ++i) {
2196                                 if (!flow->frxq[i].hrxq)
2197                                         continue;
2198                                 ind_tbl = flow->frxq[i].hrxq->ind_table;
2199                         }
2200                         assert(ind_tbl);
2201                         for (i = 0; i != ind_tbl->queues_n; ++i)
2202                                 (*priv->rxqs)[ind_tbl->queues[i]]->mark = 0;
2203                 }
2204                 for (i = 0; i != hash_rxq_init_n; ++i) {
2205                         if (!flow->frxq[i].ibv_flow)
2206                                 continue;
2207                         claim_zero(ibv_destroy_flow(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                                 ibv_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                                 ibv_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)
2427 {
2428         struct priv *priv = dev->data->dev_private;
2429
2430         (void)error;
2431         priv_lock(priv);
2432         priv_flow_destroy(priv, &priv->flows, flow);
2433         priv_unlock(priv);
2434         return 0;
2435 }
2436
2437 /**
2438  * Destroy all flows.
2439  *
2440  * @see rte_flow_flush()
2441  * @see rte_flow_ops
2442  */
2443 int
2444 mlx5_flow_flush(struct rte_eth_dev *dev,
2445                 struct rte_flow_error *error)
2446 {
2447         struct priv *priv = dev->data->dev_private;
2448
2449         (void)error;
2450         priv_lock(priv);
2451         priv_flow_flush(priv, &priv->flows);
2452         priv_unlock(priv);
2453         return 0;
2454 }
2455
2456 #ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT
2457 /**
2458  * Query flow counter.
2459  *
2460  * @param cs
2461  *   the counter set.
2462  * @param counter_value
2463  *   returned data from the counter.
2464  *
2465  * @return
2466  *   0 on success, a errno value otherwise and rte_errno is set.
2467  */
2468 static int
2469 priv_flow_query_count(struct ibv_counter_set *cs,
2470                       struct mlx5_flow_counter_stats *counter_stats,
2471                       struct rte_flow_query_count *query_count,
2472                       struct rte_flow_error *error)
2473 {
2474         uint64_t counters[2];
2475         struct ibv_query_counter_set_attr query_cs_attr = {
2476                 .cs = cs,
2477                 .query_flags = IBV_COUNTER_SET_FORCE_UPDATE,
2478         };
2479         struct ibv_counter_set_data query_out = {
2480                 .out = counters,
2481                 .outlen = 2 * sizeof(uint64_t),
2482         };
2483         int res = ibv_query_counter_set(&query_cs_attr, &query_out);
2484
2485         if (res) {
2486                 rte_flow_error_set(error, -res,
2487                                    RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
2488                                    NULL,
2489                                    "cannot read counter");
2490                 return -res;
2491         }
2492         query_count->hits_set = 1;
2493         query_count->bytes_set = 1;
2494         query_count->hits = counters[0] - counter_stats->hits;
2495         query_count->bytes = counters[1] - counter_stats->bytes;
2496         if (query_count->reset) {
2497                 counter_stats->hits = counters[0];
2498                 counter_stats->bytes = counters[1];
2499         }
2500         return 0;
2501 }
2502
2503 /**
2504  * Query a flows.
2505  *
2506  * @see rte_flow_query()
2507  * @see rte_flow_ops
2508  */
2509 int
2510 mlx5_flow_query(struct rte_eth_dev *dev,
2511                 struct rte_flow *flow,
2512                 enum rte_flow_action_type action __rte_unused,
2513                 void *data,
2514                 struct rte_flow_error *error)
2515 {
2516         struct priv *priv = dev->data->dev_private;
2517         int res = EINVAL;
2518
2519         priv_lock(priv);
2520         if (flow->cs) {
2521                 res = priv_flow_query_count(flow->cs,
2522                                         &flow->counter_stats,
2523                                         (struct rte_flow_query_count *)data,
2524                                         error);
2525         } else {
2526                 rte_flow_error_set(error, res,
2527                                    RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
2528                                    NULL,
2529                                    "no counter found for flow");
2530         }
2531         priv_unlock(priv);
2532         return -res;
2533 }
2534 #endif
2535
2536 /**
2537  * Isolated mode.
2538  *
2539  * @see rte_flow_isolate()
2540  * @see rte_flow_ops
2541  */
2542 int
2543 mlx5_flow_isolate(struct rte_eth_dev *dev,
2544                   int enable,
2545                   struct rte_flow_error *error)
2546 {
2547         struct priv *priv = dev->data->dev_private;
2548
2549         priv_lock(priv);
2550         if (dev->data->dev_started) {
2551                 rte_flow_error_set(error, EBUSY,
2552                                    RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
2553                                    NULL,
2554                                    "port must be stopped first");
2555                 priv_unlock(priv);
2556                 return -rte_errno;
2557         }
2558         priv->isolated = !!enable;
2559         if (enable)
2560                 priv->dev->dev_ops = &mlx5_dev_ops_isolate;
2561         else
2562                 priv->dev->dev_ops = &mlx5_dev_ops;
2563         priv_unlock(priv);
2564         return 0;
2565 }
2566
2567 /**
2568  * Convert a flow director filter to a generic flow.
2569  *
2570  * @param priv
2571  *   Private structure.
2572  * @param fdir_filter
2573  *   Flow director filter to add.
2574  * @param attributes
2575  *   Generic flow parameters structure.
2576  *
2577  * @return
2578  *  0 on success, errno value on error.
2579  */
2580 static int
2581 priv_fdir_filter_convert(struct priv *priv,
2582                          const struct rte_eth_fdir_filter *fdir_filter,
2583                          struct mlx5_fdir *attributes)
2584 {
2585         const struct rte_eth_fdir_input *input = &fdir_filter->input;
2586
2587         /* Validate queue number. */
2588         if (fdir_filter->action.rx_queue >= priv->rxqs_n) {
2589                 ERROR("invalid queue number %d", fdir_filter->action.rx_queue);
2590                 return EINVAL;
2591         }
2592         attributes->attr.ingress = 1;
2593         attributes->items[0] = (struct rte_flow_item) {
2594                 .type = RTE_FLOW_ITEM_TYPE_ETH,
2595                 .spec = &attributes->l2,
2596                 .mask = &attributes->l2_mask,
2597         };
2598         switch (fdir_filter->action.behavior) {
2599         case RTE_ETH_FDIR_ACCEPT:
2600                 attributes->actions[0] = (struct rte_flow_action){
2601                         .type = RTE_FLOW_ACTION_TYPE_QUEUE,
2602                         .conf = &attributes->queue,
2603                 };
2604                 break;
2605         case RTE_ETH_FDIR_REJECT:
2606                 attributes->actions[0] = (struct rte_flow_action){
2607                         .type = RTE_FLOW_ACTION_TYPE_DROP,
2608                 };
2609                 break;
2610         default:
2611                 ERROR("invalid behavior %d", fdir_filter->action.behavior);
2612                 return ENOTSUP;
2613         }
2614         attributes->queue.index = fdir_filter->action.rx_queue;
2615         switch (fdir_filter->input.flow_type) {
2616         case RTE_ETH_FLOW_NONFRAG_IPV4_UDP:
2617                 attributes->l3.ipv4.hdr = (struct ipv4_hdr){
2618                         .src_addr = input->flow.udp4_flow.ip.src_ip,
2619                         .dst_addr = input->flow.udp4_flow.ip.dst_ip,
2620                         .time_to_live = input->flow.udp4_flow.ip.ttl,
2621                         .type_of_service = input->flow.udp4_flow.ip.tos,
2622                         .next_proto_id = input->flow.udp4_flow.ip.proto,
2623                 };
2624                 attributes->l4.udp.hdr = (struct udp_hdr){
2625                         .src_port = input->flow.udp4_flow.src_port,
2626                         .dst_port = input->flow.udp4_flow.dst_port,
2627                 };
2628                 attributes->items[1] = (struct rte_flow_item){
2629                         .type = RTE_FLOW_ITEM_TYPE_IPV4,
2630                         .spec = &attributes->l3,
2631                 };
2632                 attributes->items[2] = (struct rte_flow_item){
2633                         .type = RTE_FLOW_ITEM_TYPE_UDP,
2634                         .spec = &attributes->l4,
2635                 };
2636                 break;
2637         case RTE_ETH_FLOW_NONFRAG_IPV4_TCP:
2638                 attributes->l3.ipv4.hdr = (struct ipv4_hdr){
2639                         .src_addr = input->flow.tcp4_flow.ip.src_ip,
2640                         .dst_addr = input->flow.tcp4_flow.ip.dst_ip,
2641                         .time_to_live = input->flow.tcp4_flow.ip.ttl,
2642                         .type_of_service = input->flow.tcp4_flow.ip.tos,
2643                         .next_proto_id = input->flow.tcp4_flow.ip.proto,
2644                 };
2645                 attributes->l4.tcp.hdr = (struct tcp_hdr){
2646                         .src_port = input->flow.tcp4_flow.src_port,
2647                         .dst_port = input->flow.tcp4_flow.dst_port,
2648                 };
2649                 attributes->items[1] = (struct rte_flow_item){
2650                         .type = RTE_FLOW_ITEM_TYPE_IPV4,
2651                         .spec = &attributes->l3,
2652                 };
2653                 attributes->items[2] = (struct rte_flow_item){
2654                         .type = RTE_FLOW_ITEM_TYPE_TCP,
2655                         .spec = &attributes->l4,
2656                 };
2657                 break;
2658         case RTE_ETH_FLOW_NONFRAG_IPV4_OTHER:
2659                 attributes->l3.ipv4.hdr = (struct ipv4_hdr){
2660                         .src_addr = input->flow.ip4_flow.src_ip,
2661                         .dst_addr = input->flow.ip4_flow.dst_ip,
2662                         .time_to_live = input->flow.ip4_flow.ttl,
2663                         .type_of_service = input->flow.ip4_flow.tos,
2664                         .next_proto_id = input->flow.ip4_flow.proto,
2665                 };
2666                 attributes->items[1] = (struct rte_flow_item){
2667                         .type = RTE_FLOW_ITEM_TYPE_IPV4,
2668                         .spec = &attributes->l3,
2669                 };
2670                 break;
2671         case RTE_ETH_FLOW_NONFRAG_IPV6_UDP:
2672                 attributes->l3.ipv6.hdr = (struct ipv6_hdr){
2673                         .hop_limits = input->flow.udp6_flow.ip.hop_limits,
2674                         .proto = input->flow.udp6_flow.ip.proto,
2675                 };
2676                 memcpy(attributes->l3.ipv6.hdr.src_addr,
2677                        input->flow.udp6_flow.ip.src_ip,
2678                        RTE_DIM(attributes->l3.ipv6.hdr.src_addr));
2679                 memcpy(attributes->l3.ipv6.hdr.dst_addr,
2680                        input->flow.udp6_flow.ip.dst_ip,
2681                        RTE_DIM(attributes->l3.ipv6.hdr.src_addr));
2682                 attributes->l4.udp.hdr = (struct udp_hdr){
2683                         .src_port = input->flow.udp6_flow.src_port,
2684                         .dst_port = input->flow.udp6_flow.dst_port,
2685                 };
2686                 attributes->items[1] = (struct rte_flow_item){
2687                         .type = RTE_FLOW_ITEM_TYPE_IPV6,
2688                         .spec = &attributes->l3,
2689                 };
2690                 attributes->items[2] = (struct rte_flow_item){
2691                         .type = RTE_FLOW_ITEM_TYPE_UDP,
2692                         .spec = &attributes->l4,
2693                 };
2694                 break;
2695         case RTE_ETH_FLOW_NONFRAG_IPV6_TCP:
2696                 attributes->l3.ipv6.hdr = (struct ipv6_hdr){
2697                         .hop_limits = input->flow.tcp6_flow.ip.hop_limits,
2698                         .proto = input->flow.tcp6_flow.ip.proto,
2699                 };
2700                 memcpy(attributes->l3.ipv6.hdr.src_addr,
2701                        input->flow.tcp6_flow.ip.src_ip,
2702                        RTE_DIM(attributes->l3.ipv6.hdr.src_addr));
2703                 memcpy(attributes->l3.ipv6.hdr.dst_addr,
2704                        input->flow.tcp6_flow.ip.dst_ip,
2705                        RTE_DIM(attributes->l3.ipv6.hdr.src_addr));
2706                 attributes->l4.tcp.hdr = (struct tcp_hdr){
2707                         .src_port = input->flow.tcp6_flow.src_port,
2708                         .dst_port = input->flow.tcp6_flow.dst_port,
2709                 };
2710                 attributes->items[1] = (struct rte_flow_item){
2711                         .type = RTE_FLOW_ITEM_TYPE_IPV6,
2712                         .spec = &attributes->l3,
2713                 };
2714                 attributes->items[2] = (struct rte_flow_item){
2715                         .type = RTE_FLOW_ITEM_TYPE_TCP,
2716                         .spec = &attributes->l4,
2717                 };
2718                 break;
2719         case RTE_ETH_FLOW_NONFRAG_IPV6_OTHER:
2720                 attributes->l3.ipv6.hdr = (struct ipv6_hdr){
2721                         .hop_limits = input->flow.ipv6_flow.hop_limits,
2722                         .proto = input->flow.ipv6_flow.proto,
2723                 };
2724                 memcpy(attributes->l3.ipv6.hdr.src_addr,
2725                        input->flow.ipv6_flow.src_ip,
2726                        RTE_DIM(attributes->l3.ipv6.hdr.src_addr));
2727                 memcpy(attributes->l3.ipv6.hdr.dst_addr,
2728                        input->flow.ipv6_flow.dst_ip,
2729                        RTE_DIM(attributes->l3.ipv6.hdr.src_addr));
2730                 attributes->items[1] = (struct rte_flow_item){
2731                         .type = RTE_FLOW_ITEM_TYPE_IPV6,
2732                         .spec = &attributes->l3,
2733                 };
2734                 break;
2735         default:
2736                 ERROR("invalid flow type%d",
2737                       fdir_filter->input.flow_type);
2738                 return ENOTSUP;
2739         }
2740         return 0;
2741 }
2742
2743 /**
2744  * Add new flow director filter and store it in list.
2745  *
2746  * @param priv
2747  *   Private structure.
2748  * @param fdir_filter
2749  *   Flow director filter to add.
2750  *
2751  * @return
2752  *   0 on success, errno value on failure.
2753  */
2754 static int
2755 priv_fdir_filter_add(struct priv *priv,
2756                      const struct rte_eth_fdir_filter *fdir_filter)
2757 {
2758         struct mlx5_fdir attributes = {
2759                 .attr.group = 0,
2760                 .l2_mask = {
2761                         .dst.addr_bytes = "\x00\x00\x00\x00\x00\x00",
2762                         .src.addr_bytes = "\x00\x00\x00\x00\x00\x00",
2763                         .type = 0,
2764                 },
2765         };
2766         struct mlx5_flow_parse parser = {
2767                 .layer = HASH_RXQ_ETH,
2768         };
2769         struct rte_flow_error error;
2770         struct rte_flow *flow;
2771         int ret;
2772
2773         ret = priv_fdir_filter_convert(priv, fdir_filter, &attributes);
2774         if (ret)
2775                 return -ret;
2776         ret = priv_flow_convert(priv, &attributes.attr, attributes.items,
2777                                 attributes.actions, &error, &parser);
2778         if (ret)
2779                 return -ret;
2780         flow = priv_flow_create(priv,
2781                                 &priv->flows,
2782                                 &attributes.attr,
2783                                 attributes.items,
2784                                 attributes.actions,
2785                                 &error);
2786         if (flow) {
2787                 DEBUG("FDIR created %p", (void *)flow);
2788                 return 0;
2789         }
2790         return ENOTSUP;
2791 }
2792
2793 /**
2794  * Delete specific filter.
2795  *
2796  * @param priv
2797  *   Private structure.
2798  * @param fdir_filter
2799  *   Filter to be deleted.
2800  *
2801  * @return
2802  *   0 on success, errno value on failure.
2803  */
2804 static int
2805 priv_fdir_filter_delete(struct priv *priv,
2806                         const struct rte_eth_fdir_filter *fdir_filter)
2807 {
2808         struct mlx5_fdir attributes = {
2809                 .attr.group = 0,
2810         };
2811         struct mlx5_flow_parse parser = {
2812                 .create = 1,
2813                 .layer = HASH_RXQ_ETH,
2814         };
2815         struct rte_flow_error error;
2816         struct rte_flow *flow;
2817         unsigned int i;
2818         int ret;
2819
2820         ret = priv_fdir_filter_convert(priv, fdir_filter, &attributes);
2821         if (ret)
2822                 return -ret;
2823         ret = priv_flow_convert(priv, &attributes.attr, attributes.items,
2824                                 attributes.actions, &error, &parser);
2825         if (ret)
2826                 goto exit;
2827         /*
2828          * Special case for drop action which is only set in the
2829          * specifications when the flow is created.  In this situation the
2830          * drop specification is missing.
2831          */
2832         if (parser.drop) {
2833                 struct ibv_flow_spec_action_drop *drop;
2834
2835                 drop = (void *)((uintptr_t)parser.queue[HASH_RXQ_ETH].ibv_attr +
2836                                 parser.queue[HASH_RXQ_ETH].offset);
2837                 *drop = (struct ibv_flow_spec_action_drop){
2838                         .type = IBV_FLOW_SPEC_ACTION_DROP,
2839                         .size = sizeof(struct ibv_flow_spec_action_drop),
2840                 };
2841                 parser.queue[HASH_RXQ_ETH].ibv_attr->num_of_specs++;
2842         }
2843         TAILQ_FOREACH(flow, &priv->flows, next) {
2844                 struct ibv_flow_attr *attr;
2845                 struct ibv_spec_header *attr_h;
2846                 void *spec;
2847                 struct ibv_flow_attr *flow_attr;
2848                 struct ibv_spec_header *flow_h;
2849                 void *flow_spec;
2850                 unsigned int specs_n;
2851
2852                 attr = parser.queue[HASH_RXQ_ETH].ibv_attr;
2853                 flow_attr = flow->frxq[HASH_RXQ_ETH].ibv_attr;
2854                 /* Compare first the attributes. */
2855                 if (memcmp(attr, flow_attr, sizeof(struct ibv_flow_attr)))
2856                         continue;
2857                 if (attr->num_of_specs == 0)
2858                         continue;
2859                 spec = (void *)((uintptr_t)attr +
2860                                 sizeof(struct ibv_flow_attr));
2861                 flow_spec = (void *)((uintptr_t)flow_attr +
2862                                      sizeof(struct ibv_flow_attr));
2863                 specs_n = RTE_MIN(attr->num_of_specs, flow_attr->num_of_specs);
2864                 for (i = 0; i != specs_n; ++i) {
2865                         attr_h = spec;
2866                         flow_h = flow_spec;
2867                         if (memcmp(spec, flow_spec,
2868                                    RTE_MIN(attr_h->size, flow_h->size)))
2869                                 goto wrong_flow;
2870                         spec = (void *)((uintptr_t)spec + attr_h->size);
2871                         flow_spec = (void *)((uintptr_t)flow_spec +
2872                                              flow_h->size);
2873                 }
2874                 /* At this point, the flow match. */
2875                 break;
2876 wrong_flow:
2877                 /* The flow does not match. */
2878                 continue;
2879         }
2880         if (flow)
2881                 priv_flow_destroy(priv, &priv->flows, flow);
2882 exit:
2883         for (i = 0; i != hash_rxq_init_n; ++i) {
2884                 if (parser.queue[i].ibv_attr)
2885                         rte_free(parser.queue[i].ibv_attr);
2886         }
2887         return -ret;
2888 }
2889
2890 /**
2891  * Update queue for specific filter.
2892  *
2893  * @param priv
2894  *   Private structure.
2895  * @param fdir_filter
2896  *   Filter to be updated.
2897  *
2898  * @return
2899  *   0 on success, errno value on failure.
2900  */
2901 static int
2902 priv_fdir_filter_update(struct priv *priv,
2903                         const struct rte_eth_fdir_filter *fdir_filter)
2904 {
2905         int ret;
2906
2907         ret = priv_fdir_filter_delete(priv, fdir_filter);
2908         if (ret)
2909                 return ret;
2910         ret = priv_fdir_filter_add(priv, fdir_filter);
2911         return ret;
2912 }
2913
2914 /**
2915  * Flush all filters.
2916  *
2917  * @param priv
2918  *   Private structure.
2919  */
2920 static void
2921 priv_fdir_filter_flush(struct priv *priv)
2922 {
2923         priv_flow_flush(priv, &priv->flows);
2924 }
2925
2926 /**
2927  * Get flow director information.
2928  *
2929  * @param priv
2930  *   Private structure.
2931  * @param[out] fdir_info
2932  *   Resulting flow director information.
2933  */
2934 static void
2935 priv_fdir_info_get(struct priv *priv, struct rte_eth_fdir_info *fdir_info)
2936 {
2937         struct rte_eth_fdir_masks *mask =
2938                 &priv->dev->data->dev_conf.fdir_conf.mask;
2939
2940         fdir_info->mode = priv->dev->data->dev_conf.fdir_conf.mode;
2941         fdir_info->guarant_spc = 0;
2942         rte_memcpy(&fdir_info->mask, mask, sizeof(fdir_info->mask));
2943         fdir_info->max_flexpayload = 0;
2944         fdir_info->flow_types_mask[0] = 0;
2945         fdir_info->flex_payload_unit = 0;
2946         fdir_info->max_flex_payload_segment_num = 0;
2947         fdir_info->flex_payload_limit = 0;
2948         memset(&fdir_info->flex_conf, 0, sizeof(fdir_info->flex_conf));
2949 }
2950
2951 /**
2952  * Deal with flow director operations.
2953  *
2954  * @param priv
2955  *   Pointer to private structure.
2956  * @param filter_op
2957  *   Operation to perform.
2958  * @param arg
2959  *   Pointer to operation-specific structure.
2960  *
2961  * @return
2962  *   0 on success, errno value on failure.
2963  */
2964 static int
2965 priv_fdir_ctrl_func(struct priv *priv, enum rte_filter_op filter_op, void *arg)
2966 {
2967         enum rte_fdir_mode fdir_mode =
2968                 priv->dev->data->dev_conf.fdir_conf.mode;
2969         int ret = 0;
2970
2971         if (filter_op == RTE_ETH_FILTER_NOP)
2972                 return 0;
2973         if (fdir_mode != RTE_FDIR_MODE_PERFECT &&
2974             fdir_mode != RTE_FDIR_MODE_PERFECT_MAC_VLAN) {
2975                 ERROR("%p: flow director mode %d not supported",
2976                       (void *)priv, fdir_mode);
2977                 return EINVAL;
2978         }
2979         switch (filter_op) {
2980         case RTE_ETH_FILTER_ADD:
2981                 ret = priv_fdir_filter_add(priv, arg);
2982                 break;
2983         case RTE_ETH_FILTER_UPDATE:
2984                 ret = priv_fdir_filter_update(priv, arg);
2985                 break;
2986         case RTE_ETH_FILTER_DELETE:
2987                 ret = priv_fdir_filter_delete(priv, arg);
2988                 break;
2989         case RTE_ETH_FILTER_FLUSH:
2990                 priv_fdir_filter_flush(priv);
2991                 break;
2992         case RTE_ETH_FILTER_INFO:
2993                 priv_fdir_info_get(priv, arg);
2994                 break;
2995         default:
2996                 DEBUG("%p: unknown operation %u", (void *)priv,
2997                       filter_op);
2998                 ret = EINVAL;
2999                 break;
3000         }
3001         return ret;
3002 }
3003
3004 /**
3005  * Manage filter operations.
3006  *
3007  * @param dev
3008  *   Pointer to Ethernet device structure.
3009  * @param filter_type
3010  *   Filter type.
3011  * @param filter_op
3012  *   Operation to perform.
3013  * @param arg
3014  *   Pointer to operation-specific structure.
3015  *
3016  * @return
3017  *   0 on success, negative errno value on failure.
3018  */
3019 int
3020 mlx5_dev_filter_ctrl(struct rte_eth_dev *dev,
3021                      enum rte_filter_type filter_type,
3022                      enum rte_filter_op filter_op,
3023                      void *arg)
3024 {
3025         int ret = EINVAL;
3026         struct priv *priv = dev->data->dev_private;
3027
3028         switch (filter_type) {
3029         case RTE_ETH_FILTER_GENERIC:
3030                 if (filter_op != RTE_ETH_FILTER_GET)
3031                         return -EINVAL;
3032                 *(const void **)arg = &mlx5_flow_ops;
3033                 return 0;
3034         case RTE_ETH_FILTER_FDIR:
3035                 priv_lock(priv);
3036                 ret = priv_fdir_ctrl_func(priv, filter_op, arg);
3037                 priv_unlock(priv);
3038                 break;
3039         default:
3040                 ERROR("%p: filter type (%d) not supported",
3041                       (void *)dev, filter_type);
3042                 break;
3043         }
3044         return -ret;
3045 }