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 #include <rte_tailq.h>
  17
  18 #include "ice_ethdev.h"
  19 #include "ice_generic_flow.h"
  20 #include "ice_switch_filter.h"
  21
  22 static int ice_flow_validate(struct rte_eth_dev *dev,
  23                 const struct rte_flow_attr *attr,
  24                 const struct rte_flow_item pattern[],
  25                 const struct rte_flow_action actions[],
  26                 struct rte_flow_error *error);
  27 static struct rte_flow *ice_flow_create(struct rte_eth_dev *dev,
  28                 const struct rte_flow_attr *attr,
  29                 const struct rte_flow_item pattern[],
  30                 const struct rte_flow_action actions[],
  31                 struct rte_flow_error *error);
  32 static int ice_flow_destroy(struct rte_eth_dev *dev,
  33                 struct rte_flow *flow,
  34                 struct rte_flow_error *error);
  35 static int ice_flow_flush(struct rte_eth_dev *dev,
  36                 struct rte_flow_error *error);
  37
  38 const struct rte_flow_ops ice_flow_ops = {
  39         .validate = ice_flow_validate,
  40         .create = ice_flow_create,
  41         .destroy = ice_flow_destroy,
  42         .flush = ice_flow_flush,
  43 };
  44
  45 static int
  46 ice_flow_valid_attr(const struct rte_flow_attr *attr,
  47                 struct rte_flow_error *error)
  48 {
  49         /* Must be input direction */
  50         if (!attr->ingress) {
  51                 rte_flow_error_set(error, EINVAL,
  52                                 RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
  53                                 attr, "Only support ingress.");
  54                 return -rte_errno;
  55         }
  56
  57         /* Not supported */
  58         if (attr->egress) {
  59                 rte_flow_error_set(error, EINVAL,
  60                                 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
  61                                 attr, "Not support egress.");
  62                 return -rte_errno;
  63         }
  64
  65         /* Not supported */
  66         if (attr->priority) {
  67                 rte_flow_error_set(error, EINVAL,
  68                                    RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
  69                                    attr, "Not support priority.");
  70                 return -rte_errno;
  71         }
  72
  73         /* Not supported */
  74         if (attr->group) {
  75                 rte_flow_error_set(error, EINVAL,
  76                                 RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
  77                                 attr, "Not support group.");
  78                 return -rte_errno;
  79         }
  80
  81         return 0;
  82 }
  83
  84 /* Find the first VOID or non-VOID item pointer */
  85 static const struct rte_flow_item *
  86 ice_find_first_item(const struct rte_flow_item *item, bool is_void)
  87 {
  88         bool is_find;
  89
  90         while (item->type != RTE_FLOW_ITEM_TYPE_END) {
  91                 if (is_void)
  92                         is_find = item->type == RTE_FLOW_ITEM_TYPE_VOID;
  93                 else
  94                         is_find = item->type != RTE_FLOW_ITEM_TYPE_VOID;
  95                 if (is_find)
  96                         break;
  97                 item++;
  98         }
  99         return item;
 100 }
 101
 102 /* Skip all VOID items of the pattern */
 103 static void
 104 ice_pattern_skip_void_item(struct rte_flow_item *items,
 105                         const struct rte_flow_item *pattern)
 106 {
 107         uint32_t cpy_count = 0;
 108         const struct rte_flow_item *pb = pattern, *pe = pattern;
 109
 110         for (;;) {
 111                 /* Find a non-void item first */
 112                 pb = ice_find_first_item(pb, false);
 113                 if (pb->type == RTE_FLOW_ITEM_TYPE_END) {
 114                         pe = pb;
 115                         break;
 116                 }
 117
 118                 /* Find a void item */
 119                 pe = ice_find_first_item(pb + 1, true);
 120
 121                 cpy_count = pe - pb;
 122                 rte_memcpy(items, pb, sizeof(struct rte_flow_item) * cpy_count);
 123
 124                 items += cpy_count;
 125
 126                 if (pe->type == RTE_FLOW_ITEM_TYPE_END) {
 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                                 rte_flow_error_set(error, EINVAL,
 287                                            RTE_FLOW_ERROR_TYPE_ITEM,
 288                                            item,
 289                                            "Invalid IPv6 mask");
 290                                 return 0;
 291                         }
 292
 293                         if (is_tunnel) {
 294                                 if (!memcmp(ipv6_mask->hdr.src_addr,
 295                                             ipv6_addr_mask,
 296                                             RTE_DIM(ipv6_mask->hdr.src_addr)))
 297                                         input_set |= ICE_INSET_TUN_IPV6_SRC;
 298                                 if (!memcmp(ipv6_mask->hdr.dst_addr,
 299                                             ipv6_addr_mask,
 300                                             RTE_DIM(ipv6_mask->hdr.dst_addr)))
 301                                         input_set |= ICE_INSET_TUN_IPV6_DST;
 302                                 if (ipv6_mask->hdr.proto == UINT8_MAX)
 303                                         input_set |= ICE_INSET_TUN_IPV6_PROTO;
 304                                 if (ipv6_mask->hdr.hop_limits == UINT8_MAX)
 305                                         input_set |= ICE_INSET_TUN_IPV6_TTL;
 306                         } else {
 307                                 if (!memcmp(ipv6_mask->hdr.src_addr,
 308                                             ipv6_addr_mask,
 309                                             RTE_DIM(ipv6_mask->hdr.src_addr)))
 310                                         input_set |= ICE_INSET_IPV6_SRC;
 311                                 if (!memcmp(ipv6_mask->hdr.dst_addr,
 312                                             ipv6_addr_mask,
 313                                             RTE_DIM(ipv6_mask->hdr.dst_addr)))
 314                                         input_set |= ICE_INSET_IPV6_DST;
 315                                 if (ipv6_mask->hdr.proto == UINT8_MAX)
 316                                         input_set |= ICE_INSET_IPV6_PROTO;
 317                                 if (ipv6_mask->hdr.hop_limits == UINT8_MAX)
 318                                         input_set |= ICE_INSET_IPV6_HOP_LIMIT;
 319                                 if ((ipv6_mask->hdr.vtc_flow &
 320                                         rte_cpu_to_be_32(RTE_IPV6_HDR_TC_MASK))
 321                                                 == rte_cpu_to_be_32
 322                                                 (RTE_IPV6_HDR_TC_MASK))
 323                                         input_set |= ICE_INSET_IPV6_TOS;
 324                         }
 325
 326                         break;
 327                 case RTE_FLOW_ITEM_TYPE_UDP:
 328                         udp_spec = item->spec;
 329                         udp_mask = item->mask;
 330
 331                         if (!(udp_spec && udp_mask))
 332                                 break;
 333
 334                         /* Check UDP mask and update input set*/
 335                         if (udp_mask->hdr.dgram_len ||
 336                             udp_mask->hdr.dgram_cksum) {
 337                                 rte_flow_error_set(error, EINVAL,
 338                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 339                                                    item,
 340                                                    "Invalid UDP mask");
 341                                 return 0;
 342                         }
 343
 344                         if (is_tunnel) {
 345                                 if (udp_mask->hdr.src_port == UINT16_MAX)
 346                                         input_set |= ICE_INSET_TUN_SRC_PORT;
 347                                 if (udp_mask->hdr.dst_port == UINT16_MAX)
 348                                         input_set |= ICE_INSET_TUN_DST_PORT;
 349                         } else {
 350                                 if (udp_mask->hdr.src_port == UINT16_MAX)
 351                                         input_set |= ICE_INSET_SRC_PORT;
 352                                 if (udp_mask->hdr.dst_port == UINT16_MAX)
 353                                         input_set |= ICE_INSET_DST_PORT;
 354                         }
 355
 356                         break;
 357                 case RTE_FLOW_ITEM_TYPE_TCP:
 358                         tcp_spec = item->spec;
 359                         tcp_mask = item->mask;
 360
 361                         if (!(tcp_spec && tcp_mask))
 362                                 break;
 363
 364                         /* Check TCP mask and update input set */
 365                         if (tcp_mask->hdr.sent_seq ||
 366                             tcp_mask->hdr.recv_ack ||
 367                             tcp_mask->hdr.data_off ||
 368                             tcp_mask->hdr.tcp_flags ||
 369                             tcp_mask->hdr.rx_win ||
 370                             tcp_mask->hdr.cksum ||
 371                             tcp_mask->hdr.tcp_urp) {
 372                                 rte_flow_error_set(error, EINVAL,
 373                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 374                                                    item,
 375                                                    "Invalid TCP mask");
 376                                 return 0;
 377                         }
 378
 379                         if (is_tunnel) {
 380                                 if (tcp_mask->hdr.src_port == UINT16_MAX)
 381                                         input_set |= ICE_INSET_TUN_SRC_PORT;
 382                                 if (tcp_mask->hdr.dst_port == UINT16_MAX)
 383                                         input_set |= ICE_INSET_TUN_DST_PORT;
 384                         } else {
 385                                 if (tcp_mask->hdr.src_port == UINT16_MAX)
 386                                         input_set |= ICE_INSET_SRC_PORT;
 387                                 if (tcp_mask->hdr.dst_port == UINT16_MAX)
 388                                         input_set |= ICE_INSET_DST_PORT;
 389                         }
 390
 391                         break;
 392                 case RTE_FLOW_ITEM_TYPE_SCTP:
 393                         sctp_spec = item->spec;
 394                         sctp_mask = item->mask;
 395
 396                         if (!(sctp_spec && sctp_mask))
 397                                 break;
 398
 399                         /* Check SCTP mask and update input set */
 400                         if (sctp_mask->hdr.cksum) {
 401                                 rte_flow_error_set(error, EINVAL,
 402                                            RTE_FLOW_ERROR_TYPE_ITEM,
 403                                            item,
 404                                            "Invalid SCTP mask");
 405                                 return 0;
 406                         }
 407
 408                         if (is_tunnel) {
 409                                 if (sctp_mask->hdr.src_port == UINT16_MAX)
 410                                         input_set |= ICE_INSET_TUN_SRC_PORT;
 411                                 if (sctp_mask->hdr.dst_port == UINT16_MAX)
 412                                         input_set |= ICE_INSET_TUN_DST_PORT;
 413                         } else {
 414                                 if (sctp_mask->hdr.src_port == UINT16_MAX)
 415                                         input_set |= ICE_INSET_SRC_PORT;
 416                                 if (sctp_mask->hdr.dst_port == UINT16_MAX)
 417                                         input_set |= ICE_INSET_DST_PORT;
 418                         }
 419
 420                         break;
 421                 case RTE_FLOW_ITEM_TYPE_ICMP:
 422                         icmp_mask = item->mask;
 423                         if (icmp_mask->hdr.icmp_code ||
 424                             icmp_mask->hdr.icmp_cksum ||
 425                             icmp_mask->hdr.icmp_ident ||
 426                             icmp_mask->hdr.icmp_seq_nb) {
 427                                 rte_flow_error_set(error, EINVAL,
 428                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 429                                                    item,
 430                                                    "Invalid ICMP mask");
 431                                 return 0;
 432                         }
 433
 434                         if (icmp_mask->hdr.icmp_type == UINT8_MAX)
 435                                 input_set |= ICE_INSET_ICMP;
 436                         break;
 437                 case RTE_FLOW_ITEM_TYPE_ICMP6:
 438                         icmp6_mask = item->mask;
 439                         if (icmp6_mask->code ||
 440                             icmp6_mask->checksum) {
 441                                 rte_flow_error_set(error, EINVAL,
 442                                                    RTE_FLOW_ERROR_TYPE_ITEM,
 443                                                    item,
 444                                                    "Invalid ICMP6 mask");
 445                                 return 0;
 446                         }
 447
 448                         if (icmp6_mask->type == UINT8_MAX)
 449                                 input_set |= ICE_INSET_ICMP6;
 450                         break;
 451                 case RTE_FLOW_ITEM_TYPE_VXLAN:
 452                         vxlan_spec = item->spec;
 453                         vxlan_mask = item->mask;
 454                         /* Check if VXLAN item is used to describe protocol.
 455                          * If yes, both spec and mask should be NULL.
 456                          * If no, both spec and mask shouldn't be NULL.
 457                          */
 458                         if ((!vxlan_spec && vxlan_mask) ||
 459                             (vxlan_spec && !vxlan_mask)) {
 460                                 rte_flow_error_set(error, EINVAL,
 461                                            RTE_FLOW_ERROR_TYPE_ITEM,
 462                                            item,
 463                                            "Invalid VXLAN item");
 464                                 return 0;
 465                         }
 466                         if (vxlan_mask && vxlan_mask->vni[0] == UINT8_MAX &&
 467                                         vxlan_mask->vni[1] == UINT8_MAX &&
 468                                         vxlan_mask->vni[2] == UINT8_MAX)
 469                                 input_set |= ICE_INSET_TUN_ID;
 470                         is_tunnel = 1;
 471
 472                         break;
 473                 case RTE_FLOW_ITEM_TYPE_NVGRE:
 474                         nvgre_spec = item->spec;
 475                         nvgre_mask = item->mask;
 476                         /* Check if NVGRE item is used to describe protocol.
 477                          * If yes, both spec and mask should be NULL.
 478                          * If no, both spec and mask shouldn't be NULL.
 479                          */
 480                         if ((!nvgre_spec && nvgre_mask) ||
 481                             (nvgre_spec && !nvgre_mask)) {
 482                                 rte_flow_error_set(error, EINVAL,
 483                                            RTE_FLOW_ERROR_TYPE_ITEM,
 484                                            item,
 485                                            "Invalid NVGRE item");
 486                                 return 0;
 487                         }
 488                         if (nvgre_mask && nvgre_mask->tni[0] == UINT8_MAX &&
 489                                         nvgre_mask->tni[1] == UINT8_MAX &&
 490                                         nvgre_mask->tni[2] == UINT8_MAX)
 491                                 input_set |= ICE_INSET_TUN_ID;
 492                         is_tunnel = 1;
 493
 494                         break;
 495                 case RTE_FLOW_ITEM_TYPE_VOID:
 496                         break;
 497                 default:
 498                         rte_flow_error_set(error, EINVAL,
 499                                            RTE_FLOW_ERROR_TYPE_ITEM,
 500                                            item,
 501                                            "Invalid pattern");
 502                         break;
 503                 }
 504         }
 505         return input_set;
 506 }
 507
 508 static int ice_flow_valid_inset(const struct rte_flow_item pattern[],
 509                         uint64_t inset, struct rte_flow_error *error)
 510 {
 511         uint64_t fields;
 512
 513         /* get valid field */
 514         fields = ice_get_flow_field(pattern, error);
 515         if (!fields || fields & (~inset)) {
 516                 rte_flow_error_set(error, EINVAL,
 517                                    RTE_FLOW_ERROR_TYPE_ITEM_SPEC,
 518                                    pattern,
 519                                    "Invalid input set");
 520                 return -rte_errno;
 521         }
 522
 523         return 0;
 524 }
 525
 526 static int ice_flow_valid_action(struct rte_eth_dev *dev,
 527                                 const struct rte_flow_action *actions,
 528                                 struct rte_flow_error *error)
 529 {
 530         const struct rte_flow_action_queue *act_q;
 531         uint16_t queue;
 532         const struct rte_flow_action *action;
 533         for (action = actions; action->type !=
 534                         RTE_FLOW_ACTION_TYPE_END; action++) {
 535                 switch (action->type) {
 536                 case RTE_FLOW_ACTION_TYPE_QUEUE:
 537                         act_q = action->conf;
 538                         queue = act_q->index;
 539                         if (queue >= dev->data->nb_rx_queues) {
 540                                 rte_flow_error_set(error, EINVAL,
 541                                                 RTE_FLOW_ERROR_TYPE_ACTION,
 542                                                 actions, "Invalid queue ID for"
 543                                                 " switch filter.");
 544                                 return -rte_errno;
 545                         }
 546                         break;
 547                 case RTE_FLOW_ACTION_TYPE_DROP:
 548                 case RTE_FLOW_ACTION_TYPE_VOID:
 549                         break;
 550                 default:
 551                         rte_flow_error_set(error, EINVAL,
 552                                            RTE_FLOW_ERROR_TYPE_ACTION, actions,
 553                                            "Invalid action.");
 554                         return -rte_errno;
 555                 }
 556         }
 557         return 0;
 558 }
 559
 560 static int
 561 ice_flow_validate(struct rte_eth_dev *dev,
 562                 const struct rte_flow_attr *attr,
 563                 const struct rte_flow_item pattern[],
 564                 const struct rte_flow_action actions[],
 565                 struct rte_flow_error *error)
 566 {
 567         uint64_t inset = 0;
 568         int ret = ICE_ERR_NOT_SUPPORTED;
 569
 570         if (!pattern) {
 571                 rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM_NUM,
 572                                    NULL, "NULL pattern.");
 573                 return -rte_errno;
 574         }
 575
 576         if (!actions) {
 577                 rte_flow_error_set(error, EINVAL,
 578                                    RTE_FLOW_ERROR_TYPE_ACTION_NUM,
 579                                    NULL, "NULL action.");
 580                 return -rte_errno;
 581         }
 582
 583         if (!attr) {
 584                 rte_flow_error_set(error, EINVAL,
 585                                    RTE_FLOW_ERROR_TYPE_ATTR,
 586                                    NULL, "NULL attribute.");
 587                 return -rte_errno;
 588         }
 589
 590         ret = ice_flow_valid_attr(attr, error);
 591         if (ret)
 592                 return ret;
 593
 594         inset = ice_flow_valid_pattern(pattern, error);
 595         if (!inset)
 596                 return -rte_errno;
 597
 598         ret = ice_flow_valid_inset(pattern, inset, error);
 599         if (ret)
 600                 return ret;
 601
 602         ret = ice_flow_valid_action(dev, actions, error);
 603         if (ret)
 604                 return ret;
 605
 606         return 0;
 607 }
 608
 609 static struct rte_flow *
 610 ice_flow_create(struct rte_eth_dev *dev,
 611                 const struct rte_flow_attr *attr,
 612                 const struct rte_flow_item pattern[],
 613                 const struct rte_flow_action actions[],
 614                 struct rte_flow_error *error)
 615 {
 616         struct ice_pf *pf = ICE_DEV_PRIVATE_TO_PF(dev->data->dev_private);
 617         struct rte_flow *flow = NULL;
 618         int ret;
 619
 620         flow = rte_zmalloc("ice_flow", sizeof(struct rte_flow), 0);
 621         if (!flow) {
 622                 rte_flow_error_set(error, ENOMEM,
 623                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 624                                    "Failed to allocate memory");
 625                 return flow;
 626         }
 627
 628         ret = ice_flow_validate(dev, attr, pattern, actions, error);
 629         if (ret < 0)
 630                 goto free_flow;
 631
 632         ret = ice_create_switch_filter(pf, pattern, actions, flow, error);
 633         if (ret)
 634                 goto free_flow;
 635
 636         TAILQ_INSERT_TAIL(&pf->flow_list, flow, node);
 637         return flow;
 638
 639 free_flow:
 640         rte_flow_error_set(error, -ret,
 641                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 642                            "Failed to create flow.");
 643         rte_free(flow);
 644         return NULL;
 645 }
 646
 647 static int
 648 ice_flow_destroy(struct rte_eth_dev *dev,
 649                 struct rte_flow *flow,
 650                 struct rte_flow_error *error)
 651 {
 652         struct ice_pf *pf = ICE_DEV_PRIVATE_TO_PF(dev->data->dev_private);
 653         int ret = 0;
 654
 655         ret = ice_destroy_switch_filter(pf, flow, error);
 656
 657         if (!ret) {
 658                 TAILQ_REMOVE(&pf->flow_list, flow, node);
 659                 rte_free(flow);
 660         } else {
 661                 rte_flow_error_set(error, -ret,
 662                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 663                                    "Failed to destroy flow.");
 664         }
 665
 666         return ret;
 667 }
 668
 669 static int
 670 ice_flow_flush(struct rte_eth_dev *dev,
 671                 struct rte_flow_error *error)
 672 {
 673         struct ice_pf *pf = ICE_DEV_PRIVATE_TO_PF(dev->data->dev_private);
 674         struct rte_flow *p_flow;
 675         void *temp;
 676         int ret = 0;
 677
 678         TAILQ_FOREACH_SAFE(p_flow, &pf->flow_list, node, temp) {
 679                 ret = ice_flow_destroy(dev, p_flow, error);
 680                 if (ret) {
 681                         rte_flow_error_set(error, -ret,
 682                                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 683                                            "Failed to flush SW flows.");
 684                         return -rte_errno;
 685                 }
 686         }
 687
 688         return ret;
 689 }