drivers/net/ice/ice_generic_flow.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2019 Intel Corporation
   3  */
   4
   5 #include <sys/queue.h>
   6 #include <stdio.h>
   7 #include <errno.h>
   8 #include <stdint.h>
   9 #include <string.h>
  10 #include <unistd.h>
  11 #include <stdarg.h>
  12
  13 #include <rte_ether.h>
  14 #include <rte_ethdev_driver.h>
  15 #include <rte_malloc.h>
  16
  17 #include "ice_ethdev.h"
  18 #include "ice_generic_flow.h"
  19 #include "ice_switch_filter.h"
  20
  21 static int ice_flow_validate(struct rte_eth_dev *dev,
  22                 const struct rte_flow_attr *attr,
  23                 const struct rte_flow_item pattern[],
  24                 const struct rte_flow_action actions[],
  25                 struct rte_flow_error *error);
  26 static struct rte_flow *ice_flow_create(struct rte_eth_dev *dev,
  27                 const struct rte_flow_attr *attr,
  28                 const struct rte_flow_item pattern[],
  29                 const struct rte_flow_action actions[],
  30                 struct rte_flow_error *error);
  31 static int ice_flow_destroy(struct rte_eth_dev *dev,
  32                 struct rte_flow *flow,
  33                 struct rte_flow_error *error);
  34 static int ice_flow_flush(struct rte_eth_dev *dev,
  35                 struct rte_flow_error *error);
  36
  37 const struct rte_flow_ops ice_flow_ops = {
  38         .validate = ice_flow_validate,
  39         .create = ice_flow_create,
  40         .destroy = ice_flow_destroy,
  41         .flush = ice_flow_flush,
  42 };
  43
  44 static int
  45 ice_flow_valid_attr(const struct rte_flow_attr *attr,
  46                      struct rte_flow_error *error)
  47 {
  48         /* Must be input direction */
  49         if (!attr->ingress) {
  50                 rte_flow_error_set(error, EINVAL,
  51                                    RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
  52                                    attr, "Only support ingress.");
  53                 return -rte_errno;
  54         }
  55
  56         /* Not supported */
  57         if (attr->egress) {
  58                 rte_flow_error_set(error, EINVAL,
  59                                    RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
  60                                    attr, "Not support egress.");
  61                 return -rte_errno;
  62         }
  63
  64         /* Not supported */
  65         if (attr->priority) {
  66                 rte_flow_error_set(error, EINVAL,
  67                                    RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
  68                                    attr, "Not support priority.");
  69                 return -rte_errno;
  70         }
  71
  72         /* Not supported */
  73         if (attr->group) {
  74                 rte_flow_error_set(error, EINVAL,
  75                                    RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
  76                                    attr, "Not support group.");
  77                 return -rte_errno;
  78         }
  79
  80         return 0;
  81 }
  82
  83 /* Find the first VOID or non-VOID item pointer */
  84 static const struct rte_flow_item *
  85 ice_find_first_item(const struct rte_flow_item *item, bool is_void)
  86 {
  87         bool is_find;
  88
  89         while (item->type != RTE_FLOW_ITEM_TYPE_END) {
  90                 if (is_void)
  91                         is_find = item->type == RTE_FLOW_ITEM_TYPE_VOID;
  92                 else
  93                         is_find = item->type != RTE_FLOW_ITEM_TYPE_VOID;
  94                 if (is_find)
  95                         break;
  96                 item++;
  97         }
  98         return item;
  99 }
 100
 101 /* Skip all VOID items of the pattern */
 102 static void
 103 ice_pattern_skip_void_item(struct rte_flow_item *items,
 104                             const struct rte_flow_item *pattern)
 105 {
 106         uint32_t cpy_count = 0;
 107         const struct rte_flow_item *pb = pattern, *pe = pattern;
 108
 109         for (;;) {
 110                 /* Find a non-void item first */
 111                 pb = ice_find_first_item(pb, false);
 112                 if (pb->type == RTE_FLOW_ITEM_TYPE_END) {
 113                         pe = pb;
 114                         break;
 115                 }
 116
 117                 /* Find a void item */
 118                 pe = ice_find_first_item(pb + 1, true);
 119
 120                 cpy_count = pe - pb;
 121                 rte_memcpy(items, pb, sizeof(struct rte_flow_item) * cpy_count);
 122
 123                 items += cpy_count;
 124
 125                 if (pe->type == RTE_FLOW_ITEM_TYPE_END) {
 126                         pb = pe;
 127                         break;
 128                 }
 129
 130                 pb = pe + 1;
 131         }
 132         /* Copy the END item. */
 133         rte_memcpy(items, pe, sizeof(struct rte_flow_item));
 134 }
 135
 136 /* Check if the pattern matches a supported item type array */
 137 static bool
 138 ice_match_pattern(enum rte_flow_item_type *item_array,
 139                 const struct rte_flow_item *pattern)
 140 {
 141         const struct rte_flow_item *item = pattern;
 142
 143         while ((*item_array == item->type) &&
 144                (*item_array != RTE_FLOW_ITEM_TYPE_END)) {
 145                 item_array++;
 146                 item++;
 147         }
 148
 149         return (*item_array == RTE_FLOW_ITEM_TYPE_END &&
 150                 item->type == RTE_FLOW_ITEM_TYPE_END);
 151 }
 152
 153 static uint64_t ice_flow_valid_pattern(const struct rte_flow_item pattern[],
 154                 struct rte_flow_error *error)
 155 {
 156         uint16_t i = 0;
 157         uint64_t inset;
 158         struct rte_flow_item *items; /* used for pattern without VOID items */
 159         uint32_t item_num = 0; /* non-void item number */
 160
 161         /* Get the non-void item number of pattern */
 162         while ((pattern + i)->type != RTE_FLOW_ITEM_TYPE_END) {
 163                 if ((pattern + i)->type != RTE_FLOW_ITEM_TYPE_VOID)
 164                         item_num++;
 165                 i++;
 166         }
 167         item_num++;
 168
 169         items = rte_zmalloc("ice_pattern",
 170                             item_num * sizeof(struct rte_flow_item), 0);
 171         if (!items) {
 172                 rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_ITEM_NUM,
 173                                    NULL, "No memory for PMD internal items.");
 174                 return -ENOMEM;
 175         }
 176
 177         ice_pattern_skip_void_item(items, pattern);
 178
 179         for (i = 0; i < RTE_DIM(ice_supported_patterns); i++)
 180                 if (ice_match_pattern(ice_supported_patterns[i].items,
 181                                       items)) {
 182                         inset = ice_supported_patterns[i].sw_fields;
 183                         rte_free(items);
 184                         return inset;
 185                 }
 186         rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM,
 187                            pattern, "Unsupported pattern");
 188
 189         rte_free(items);
 190         return 0;
 191 }
 192
 193 static uint64_t ice_get_flow_field(const struct rte_flow_item pattern[],
 194                         struct rte_flow_error *error)
 195 {
 196         const struct rte_flow_item *item = pattern;
 197         const struct rte_flow_item_eth *eth_spec, *eth_mask;
 198         const struct rte_flow_item_ipv4 *ipv4_spec, *ipv4_mask;
 199         const struct rte_flow_item_ipv6 *ipv6_spec, *ipv6_mask;
 200         const struct rte_flow_item_tcp *tcp_spec, *tcp_mask;
 201         const struct rte_flow_item_udp *udp_spec, *udp_mask;
 202         const struct rte_flow_item_sctp *sctp_spec, *sctp_mask;
 203         const struct rte_flow_item_icmp *icmp_mask;
 204         const struct rte_flow_item_icmp6 *icmp6_mask;
 205         const struct rte_flow_item_vxlan *vxlan_spec, *vxlan_mask;
 206         const struct rte_flow_item_nvgre *nvgre_spec, *nvgre_mask;
 207         enum rte_flow_item_type item_type;
 208         uint8_t  ipv6_addr_mask[16] = {
 209                 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
 210                 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
 211         uint64_t input_set = ICE_INSET_NONE;
 212         bool is_tunnel = false;
 213
 214         for (; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
 215                 if (item->last) {
 216                         rte_flow_error_set(error, EINVAL,
 217                                            RTE_FLOW_ERROR_TYPE_ITEM,
 218                                            item,
 219                                            "Not support range");
 220                         return 0;
 221                 }
 222                 item_type = item->type;
 223                 switch (item_type) {
 224                 case RTE_FLOW_ITEM_TYPE_ETH:
 225                         eth_spec = item->spec;
 226                         eth_mask = item->mask;
 227
 228                         if (eth_spec && eth_mask) {
 229                                 if (rte_is_broadcast_ether_addr(&eth_mask->src))
 230                                         input_set |= ICE_INSET_SMAC;
 231                                 if (rte_is_broadcast_ether_addr(&eth_mask->dst))
 232                                         input_set |= ICE_INSET_DMAC;
 233                                 if (eth_mask->type == RTE_BE16(0xffff))
 234                                         input_set |= ICE_INSET_ETHERTYPE;
 235                         }
 236                         break;
 237                 case RTE_FLOW_ITEM_TYPE_IPV4:
 238                         ipv4_spec = item->spec;
 239                         ipv4_mask = item->mask;
 240
 241                         if (!(ipv4_spec && ipv4_mask))
 242                                 break;
 243
 244                         /* Check IPv4 mask and update input set */
 245                         if (ipv4_mask->hdr.version_ihl ||
 246                             ipv4_mask->hdr.total_length ||
 247                             ipv4_mask->hdr.packet_id ||
 248                             ipv4_mask->hdr.hdr_checksum) {
 249                                 rte_flow_error_set(error, EINVAL,
 250                                            RTE_FLOW_ERROR_TYPE_ITEM,
 251                                            item,
 252                                            "Invalid IPv4 mask.");
 253                                 return 0;
 254                         }
 255
 256                         if (is_tunnel) {
 257                                 if (ipv4_mask->hdr.src_addr == UINT32_MAX)
 258                                         input_set |= ICE_INSET_TUN_IPV4_SRC;
 259                                 if (ipv4_mask->hdr.dst_addr == UINT32_MAX)
 260                                         input_set |= ICE_INSET_TUN_IPV4_DST;
 261                                 if (ipv4_mask->hdr.time_to_live == UINT8_MAX)
 262                                         input_set |= ICE_INSET_TUN_IPV4_TTL;
 263                                 if (ipv4_mask->hdr.next_proto_id == UINT8_MAX)
 264                                         input_set |= ICE_INSET_TUN_IPV4_PROTO;
 265                         } else {
 266                                 if (ipv4_mask->hdr.src_addr == UINT32_MAX)
 267                                         input_set |= ICE_INSET_IPV4_SRC;
 268                                 if (ipv4_mask->hdr.dst_addr == UINT32_MAX)
 269                                         input_set |= ICE_INSET_IPV4_DST;
 270                                 if (ipv4_mask->hdr.time_to_live == UINT8_MAX)
 271                                         input_set |= ICE_INSET_IPV4_TTL;
 272                                 if (ipv4_mask->hdr.next_proto_id == UINT8_MAX)
 273                                         input_set |= ICE_INSET_IPV4_PROTO;
 274                                 if (ipv4_mask->hdr.type_of_service == UINT8_MAX)
 275                                         input_set |= ICE_INSET_IPV4_TOS;
 276                         }
 277                         break;
 278                 case RTE_FLOW_ITEM_TYPE_IPV6:
 279                         ipv6_spec = item->spec;
 280                         ipv6_mask = item->mask;
 281
 282                         if (!(ipv6_spec && ipv6_mask))
 283                                 break;
 284
 285                         if (ipv6_mask->hdr.payload_len ||
 286                             ipv6_mask->hdr.vtc_flow) {
 287                                 rte_flow_error_set(error, EINVAL,
 288                                            RTE_FLOW_ERROR_TYPE_ITEM,
 289                                            item,
 290                                            "Invalid IPv6 mask");
 291                                 return 0;
 292                         }
 293
 294                         if (is_tunnel) {
 295                                 if (!memcmp(ipv6_mask->hdr.src_addr,
 296                                             ipv6_addr_mask,
 297                                             RTE_DIM(ipv6_mask->hdr.src_addr)))
 298                                         input_set |= ICE_INSET_TUN_IPV6_SRC;
 299                                 if (!memcmp(ipv6_mask->hdr.dst_addr,
 300                                             ipv6_addr_mask,
 301                                             RTE_DIM(ipv6_mask->hdr.dst_addr)))
 302                                         input_set |= ICE_INSET_TUN_IPV6_DST;
 303                                 if (ipv6_mask->hdr.proto == UINT8_MAX)
 304                                         input_set |= ICE_INSET_TUN_IPV6_PROTO;
 305                                 if (ipv6_mask->hdr.hop_limits == UINT8_MAX)
 306                                         input_set |= ICE_INSET_TUN_IPV6_TTL;
 307                         } else {
 308                                 if (!memcmp(ipv6_mask->hdr.src_addr,
 309                                             ipv6_addr_mask,
 310                                             RTE_DIM(ipv6_mask->hdr.src_addr)))
 311                                         input_set |= ICE_INSET_IPV6_SRC;
 312                                 if (!memcmp(ipv6_mask->hdr.dst_addr,
 313                                             ipv6_addr_mask,
 314                                             RTE_DIM(ipv6_mask->hdr.dst_addr)))
 315                                         input_set |= ICE_INSET_IPV6_DST;
 316                                 if (ipv6_mask->hdr.proto == UINT8_MAX)
 317                                         input_set |= ICE_INSET_IPV6_PROTO;
 318                                 if (ipv6_mask->hdr.hop_limits == UINT8_MAX)
 319                                         input_set |= ICE_INSET_IPV6_HOP_LIMIT;
 320                         }
 321
 322                         break;
 323                 case RTE_FLOW_ITEM_TYPE_UDP:
 324                         udp_spec = item->spec;
 325                         udp_mask = item->mask;
 326
 327                         if (!(udp_spec && udp_mask))
 328                                 break;
 329
 330                         /* Check UDP mask and update input set*/
 331                         if (udp_mask->hdr.dgram_len ||
 332                             udp_mask->hdr.dgram_cksum) {
 333                                 rte_flow_error_set(error, EINVAL,
 334                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 335                                                    item,
 336                                                    "Invalid UDP mask");
 337                                 return 0;
 338                         }
 339
 340                         if (is_tunnel) {
 341                                 if (udp_mask->hdr.src_port == UINT16_MAX)
 342                                         input_set |= ICE_INSET_TUN_SRC_PORT;
 343                                 if (udp_mask->hdr.dst_port == UINT16_MAX)
 344                                         input_set |= ICE_INSET_TUN_DST_PORT;
 345                         } else {
 346                                 if (udp_mask->hdr.src_port == UINT16_MAX)
 347                                         input_set |= ICE_INSET_SRC_PORT;
 348                                 if (udp_mask->hdr.dst_port == UINT16_MAX)
 349                                         input_set |= ICE_INSET_DST_PORT;
 350                         }
 351
 352                         break;
 353                 case RTE_FLOW_ITEM_TYPE_TCP:
 354                         tcp_spec = item->spec;
 355                         tcp_mask = item->mask;
 356
 357                         if (!(tcp_spec && tcp_mask))
 358                                 break;
 359
 360                         /* Check TCP mask and update input set */
 361                         if (tcp_mask->hdr.sent_seq ||
 362                             tcp_mask->hdr.recv_ack ||
 363                             tcp_mask->hdr.data_off ||
 364                             tcp_mask->hdr.tcp_flags ||
 365                             tcp_mask->hdr.rx_win ||
 366                             tcp_mask->hdr.cksum ||
 367                             tcp_mask->hdr.tcp_urp) {
 368                                 rte_flow_error_set(error, EINVAL,
 369                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 370                                                    item,
 371                                                    "Invalid TCP mask");
 372                                 return 0;
 373                         }
 374
 375                         if (is_tunnel) {
 376                                 if (tcp_mask->hdr.src_port == UINT16_MAX)
 377                                         input_set |= ICE_INSET_TUN_SRC_PORT;
 378                                 if (tcp_mask->hdr.dst_port == UINT16_MAX)
 379                                         input_set |= ICE_INSET_TUN_DST_PORT;
 380                         } else {
 381                                 if (tcp_mask->hdr.src_port == UINT16_MAX)
 382                                         input_set |= ICE_INSET_SRC_PORT;
 383                                 if (tcp_mask->hdr.dst_port == UINT16_MAX)
 384                                         input_set |= ICE_INSET_DST_PORT;
 385                         }
 386
 387                         break;
 388                 case RTE_FLOW_ITEM_TYPE_SCTP:
 389                         sctp_spec = item->spec;
 390                         sctp_mask = item->mask;
 391
 392                         if (!(sctp_spec && sctp_mask))
 393                                 break;
 394
 395                         /* Check SCTP mask and update input set */
 396                         if (sctp_mask->hdr.cksum) {
 397                                 rte_flow_error_set(error, EINVAL,
 398                                            RTE_FLOW_ERROR_TYPE_ITEM,
 399                                            item,
 400                                            "Invalid SCTP mask");
 401                                 return 0;
 402                         }
 403
 404                         if (is_tunnel) {
 405                                 if (sctp_mask->hdr.src_port == UINT16_MAX)
 406                                         input_set |= ICE_INSET_TUN_SRC_PORT;
 407                                 if (sctp_mask->hdr.dst_port == UINT16_MAX)
 408                                         input_set |= ICE_INSET_TUN_DST_PORT;
 409                         } else {
 410                                 if (sctp_mask->hdr.src_port == UINT16_MAX)
 411                                         input_set |= ICE_INSET_SRC_PORT;
 412                                 if (sctp_mask->hdr.dst_port == UINT16_MAX)
 413                                         input_set |= ICE_INSET_DST_PORT;
 414                         }
 415
 416                         break;
 417                 case RTE_FLOW_ITEM_TYPE_ICMP:
 418                         icmp_mask = item->mask;
 419                         if (icmp_mask->hdr.icmp_code ||
 420                             icmp_mask->hdr.icmp_cksum ||
 421                             icmp_mask->hdr.icmp_ident ||
 422                             icmp_mask->hdr.icmp_seq_nb) {
 423                                 rte_flow_error_set(error, EINVAL,
 424                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 425                                                    item,
 426                                                    "Invalid ICMP mask");
 427                                 return 0;
 428                         }
 429
 430                         if (icmp_mask->hdr.icmp_type == UINT8_MAX)
 431                                 input_set |= ICE_INSET_ICMP;
 432                         break;
 433                 case RTE_FLOW_ITEM_TYPE_ICMP6:
 434                         icmp6_mask = item->mask;
 435                         if (icmp6_mask->code ||
 436                             icmp6_mask->checksum) {
 437                                 rte_flow_error_set(error, EINVAL,
 438                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 439                                                    item,
 440                                                    "Invalid ICMP6 mask");
 441                                 return 0;
 442                         }
 443
 444                         if (icmp6_mask->type == UINT8_MAX)
 445                                 input_set |= ICE_INSET_ICMP6;
 446                         break;
 447                 case RTE_FLOW_ITEM_TYPE_VXLAN:
 448                         vxlan_spec = item->spec;
 449                         vxlan_mask = item->mask;
 450                         /* Check if VXLAN item is used to describe protocol.
 451                          * If yes, both spec and mask should be NULL.
 452                          * If no, both spec and mask shouldn't be NULL.
 453                          */
 454                         if ((!vxlan_spec && vxlan_mask) ||
 455                             (vxlan_spec && !vxlan_mask)) {
 456                                 rte_flow_error_set(error, EINVAL,
 457                                            RTE_FLOW_ERROR_TYPE_ITEM,
 458                                            item,
 459                                            "Invalid VXLAN item");
 460                                 return 0;
 461                         }
 462                         is_tunnel = 1;
 463
 464                         break;
 465                 case RTE_FLOW_ITEM_TYPE_NVGRE:
 466                         nvgre_spec = item->spec;
 467                         nvgre_mask = item->mask;
 468                         /* Check if VXLAN item is used to describe protocol.
 469                          * If yes, both spec and mask should be NULL.
 470                          * If no, both spec and mask shouldn't be NULL.
 471                          */
 472                         if ((!nvgre_spec && nvgre_mask) ||
 473                             (nvgre_spec && !nvgre_mask)) {
 474                                 rte_flow_error_set(error, EINVAL,
 475                                            RTE_FLOW_ERROR_TYPE_ITEM,
 476                                            item,
 477                                            "Invalid NVGRE item");
 478                                 return 0;
 479                         }
 480                         is_tunnel = 1;
 481
 482                         break;
 483                 default:
 484                         rte_flow_error_set(error, EINVAL,
 485                                            RTE_FLOW_ERROR_TYPE_ITEM,
 486                                            item,
 487                                            "Invalid mask no exist");
 488                         break;
 489                 }
 490         }
 491         return input_set;
 492 }
 493
 494 static int ice_flow_valid_inset(const struct rte_flow_item pattern[],
 495                         uint64_t inset, struct rte_flow_error *error)
 496 {
 497         uint64_t fields;
 498
 499         /* get valid field */
 500         fields = ice_get_flow_field(pattern, error);
 501         if (!fields || fields & (~inset)) {
 502                 rte_flow_error_set(error, EINVAL,
 503                                    RTE_FLOW_ERROR_TYPE_ITEM_SPEC,
 504                                    pattern,
 505                                    "Invalid input set");
 506                 return -rte_errno;
 507         }
 508
 509         return 0;
 510 }
 511
 512 static int ice_flow_valid_action(struct rte_eth_dev *dev,
 513                                 const struct rte_flow_action *actions,
 514                                 struct rte_flow_error *error)
 515 {
 516         const struct rte_flow_action_queue *act_q;
 517         uint16_t queue;
 518
 519         switch (actions->type) {
 520         case RTE_FLOW_ACTION_TYPE_QUEUE:
 521                 act_q = actions->conf;
 522                 queue = act_q->index;
 523                 if (queue >= dev->data->nb_rx_queues) {
 524                         rte_flow_error_set(error, EINVAL,
 525                                            RTE_FLOW_ERROR_TYPE_ACTION,
 526                                            actions, "Invalid queue ID for"
 527                                            " switch filter.");
 528                         return -rte_errno;
 529                 }
 530                 break;
 531         case RTE_FLOW_ACTION_TYPE_DROP:
 532                 break;
 533         default:
 534                 rte_flow_error_set(error, EINVAL,
 535                                    RTE_FLOW_ERROR_TYPE_ACTION, actions,
 536                                    "Invalid action.");
 537                 return -rte_errno;
 538         }
 539
 540         return 0;
 541 }
 542
 543 static int
 544 ice_flow_validate(struct rte_eth_dev *dev,
 545                    const struct rte_flow_attr *attr,
 546                    const struct rte_flow_item pattern[],
 547                    const struct rte_flow_action actions[],
 548                    struct rte_flow_error *error)
 549 {
 550         uint64_t inset = 0;
 551         int ret = ICE_ERR_NOT_SUPPORTED;
 552
 553         if (!pattern) {
 554                 rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM_NUM,
 555                                    NULL, "NULL pattern.");
 556                 return -rte_errno;
 557         }
 558
 559         if (!actions) {
 560                 rte_flow_error_set(error, EINVAL,
 561                                    RTE_FLOW_ERROR_TYPE_ACTION_NUM,
 562                                    NULL, "NULL action.");
 563                 return -rte_errno;
 564         }
 565
 566         if (!attr) {
 567                 rte_flow_error_set(error, EINVAL,
 568                                    RTE_FLOW_ERROR_TYPE_ATTR,
 569                                    NULL, "NULL attribute.");
 570                 return -rte_errno;
 571         }
 572
 573         ret = ice_flow_valid_attr(attr, error);
 574         if (ret)
 575                 return ret;
 576
 577         inset = ice_flow_valid_pattern(pattern, error);
 578         if (!inset)
 579                 return -rte_errno;
 580
 581         ret = ice_flow_valid_inset(pattern, inset, error);
 582         if (ret)
 583                 return ret;
 584
 585         ret = ice_flow_valid_action(dev, actions, error);
 586         if (ret)
 587                 return ret;
 588
 589         return 0;
 590 }
 591
 592 static struct rte_flow *
 593 ice_flow_create(struct rte_eth_dev *dev,
 594                  const struct rte_flow_attr *attr,
 595                  const struct rte_flow_item pattern[],
 596                  const struct rte_flow_action actions[],
 597                  struct rte_flow_error *error)
 598 {
 599         struct ice_pf *pf = ICE_DEV_PRIVATE_TO_PF(dev->data->dev_private);
 600         struct rte_flow *flow = NULL;
 601         int ret;
 602
 603         flow = rte_zmalloc("ice_flow", sizeof(struct rte_flow), 0);
 604         if (!flow) {
 605                 rte_flow_error_set(error, ENOMEM,
 606                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 607                                    "Failed to allocate memory");
 608                 return flow;
 609         }
 610
 611         ret = ice_flow_validate(dev, attr, pattern, actions, error);
 612         if (ret < 0)
 613                 goto free_flow;
 614
 615         ret = ice_create_switch_filter(pf, pattern, actions, flow, error);
 616         if (ret)
 617                 goto free_flow;
 618
 619         TAILQ_INSERT_TAIL(&pf->flow_list, flow, node);
 620         return flow;
 621
 622 free_flow:
 623         rte_flow_error_set(error, -ret,
 624                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 625                            "Failed to create flow.");
 626         rte_free(flow);
 627         return NULL;
 628 }
 629
 630 static int
 631 ice_flow_destroy(struct rte_eth_dev *dev,
 632                  struct rte_flow *flow,
 633                  struct rte_flow_error *error)
 634 {
 635         struct ice_pf *pf = ICE_DEV_PRIVATE_TO_PF(dev->data->dev_private);
 636         int ret = 0;
 637
 638         ret = ice_destroy_switch_filter(pf, flow, error);
 639
 640         if (!ret) {
 641                 TAILQ_REMOVE(&pf->flow_list, flow, node);
 642                 rte_free(flow);
 643         } else {
 644                 rte_flow_error_set(error, -ret,
 645                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 646                                    "Failed to destroy flow.");
 647         }
 648
 649         return ret;
 650 }
 651
 652 static int
 653 ice_flow_flush(struct rte_eth_dev *dev,
 654                struct rte_flow_error *error)
 655 {
 656         struct ice_pf *pf = ICE_DEV_PRIVATE_TO_PF(dev->data->dev_private);
 657         struct rte_flow *p_flow;
 658         int ret = 0;
 659
 660         TAILQ_FOREACH(p_flow, &pf->flow_list, node) {
 661                 ret = ice_flow_destroy(dev, p_flow, error);
 662                 if (ret) {
 663                         rte_flow_error_set(error, -ret,
 664                                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 665                                            "Failed to flush SW flows.");
 666                         return -rte_errno;
 667                 }
 668         }
 669
 670         return ret;
 671 }