drivers/net/mlx5/mlx5_flow.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright 2016 6WIND S.A.
   3  * Copyright 2016 Mellanox Technologies, Ltd
   4  */
   5
   6 #include <stdalign.h>
   7 #include <stdint.h>
   8 #include <string.h>
   9 #include <stdbool.h>
  10 #include <sys/queue.h>
  11
  12 #include <rte_common.h>
  13 #include <rte_ether.h>
  14 #include <ethdev_driver.h>
  15 #include <rte_eal_paging.h>
  16 #include <rte_flow.h>
  17 #include <rte_cycles.h>
  18 #include <rte_flow_driver.h>
  19 #include <rte_malloc.h>
  20 #include <rte_ip.h>
  21
  22 #include <mlx5_glue.h>
  23 #include <mlx5_devx_cmds.h>
  24 #include <mlx5_prm.h>
  25 #include <mlx5_malloc.h>
  26
  27 #include "mlx5_defs.h"
  28 #include "mlx5.h"
  29 #include "mlx5_flow.h"
  30 #include "mlx5_flow_os.h"
  31 #include "mlx5_rx.h"
  32 #include "mlx5_tx.h"
  33 #include "mlx5_common_os.h"
  34 #include "rte_pmd_mlx5.h"
  35
  36 struct tunnel_default_miss_ctx {
  37         uint16_t *queue;
  38         __extension__
  39         union {
  40                 struct rte_flow_action_rss action_rss;
  41                 struct rte_flow_action_queue miss_queue;
  42                 struct rte_flow_action_jump miss_jump;
  43                 uint8_t raw[0];
  44         };
  45 };
  46
  47 static int
  48 flow_tunnel_add_default_miss(struct rte_eth_dev *dev,
  49                              struct rte_flow *flow,
  50                              const struct rte_flow_attr *attr,
  51                              const struct rte_flow_action *app_actions,
  52                              uint32_t flow_idx,
  53                              const struct mlx5_flow_tunnel *tunnel,
  54                              struct tunnel_default_miss_ctx *ctx,
  55                              struct rte_flow_error *error);
  56 static struct mlx5_flow_tunnel *
  57 mlx5_find_tunnel_id(struct rte_eth_dev *dev, uint32_t id);
  58 static void
  59 mlx5_flow_tunnel_free(struct rte_eth_dev *dev, struct mlx5_flow_tunnel *tunnel);
  60 static uint32_t
  61 tunnel_flow_group_to_flow_table(struct rte_eth_dev *dev,
  62                                 const struct mlx5_flow_tunnel *tunnel,
  63                                 uint32_t group, uint32_t *table,
  64                                 struct rte_flow_error *error);
  65
  66 static struct mlx5_flow_workspace *mlx5_flow_push_thread_workspace(void);
  67 static void mlx5_flow_pop_thread_workspace(void);
  68
  69
  70 /** Device flow drivers. */
  71 extern const struct mlx5_flow_driver_ops mlx5_flow_verbs_drv_ops;
  72
  73 const struct mlx5_flow_driver_ops mlx5_flow_null_drv_ops;
  74
  75 const struct mlx5_flow_driver_ops *flow_drv_ops[] = {
  76         [MLX5_FLOW_TYPE_MIN] = &mlx5_flow_null_drv_ops,
  77 #if defined(HAVE_IBV_FLOW_DV_SUPPORT) || !defined(HAVE_INFINIBAND_VERBS_H)
  78         [MLX5_FLOW_TYPE_DV] = &mlx5_flow_dv_drv_ops,
  79 #endif
  80         [MLX5_FLOW_TYPE_VERBS] = &mlx5_flow_verbs_drv_ops,
  81         [MLX5_FLOW_TYPE_MAX] = &mlx5_flow_null_drv_ops
  82 };
  83
  84 /** Helper macro to build input graph for mlx5_flow_expand_rss(). */
  85 #define MLX5_FLOW_EXPAND_RSS_NEXT(...) \
  86         (const int []){ \
  87                 __VA_ARGS__, 0, \
  88         }
  89
  90 /** Node object of input graph for mlx5_flow_expand_rss(). */
  91 struct mlx5_flow_expand_node {
  92         const int *const next;
  93         /**<
  94          * List of next node indexes. Index 0 is interpreted as a terminator.
  95          */
  96         const enum rte_flow_item_type type;
  97         /**< Pattern item type of current node. */
  98         uint64_t rss_types;
  99         /**<
 100          * RSS types bit-field associated with this node
 101          * (see RTE_ETH_RSS_* definitions).
 102          */
 103         uint64_t node_flags;
 104         /**<
 105          *  Bit-fields that define how the node is used in the expansion.
 106          * (see MLX5_EXPANSION_NODE_* definitions).
 107          */
 108 };
 109
 110 /* Optional expand field. The expansion alg will not go deeper. */
 111 #define MLX5_EXPANSION_NODE_OPTIONAL (UINT64_C(1) << 0)
 112
 113 /* The node is not added implicitly as expansion to the flow pattern.
 114  * If the node type does not match the flow pattern item type, the
 115  * expansion alg will go deeper to its next items.
 116  * In the current implementation, the list of next nodes indexes can
 117  * have up to one node with this flag set and it has to be the last
 118  * node index (before the list terminator).
 119  */
 120 #define MLX5_EXPANSION_NODE_EXPLICIT (UINT64_C(1) << 1)
 121
 122 /** Object returned by mlx5_flow_expand_rss(). */
 123 struct mlx5_flow_expand_rss {
 124         uint32_t entries;
 125         /**< Number of entries @p patterns and @p priorities. */
 126         struct {
 127                 struct rte_flow_item *pattern; /**< Expanded pattern array. */
 128                 uint32_t priority; /**< Priority offset for each expansion. */
 129         } entry[];
 130 };
 131
 132 static void
 133 mlx5_dbg__print_pattern(const struct rte_flow_item *item);
 134
 135 static const struct mlx5_flow_expand_node *
 136 mlx5_flow_expand_rss_adjust_node(const struct rte_flow_item *pattern,
 137                 unsigned int item_idx,
 138                 const struct mlx5_flow_expand_node graph[],
 139                 const struct mlx5_flow_expand_node *node);
 140
 141 static bool
 142 mlx5_flow_is_rss_expandable_item(const struct rte_flow_item *item)
 143 {
 144         switch (item->type) {
 145         case RTE_FLOW_ITEM_TYPE_ETH:
 146         case RTE_FLOW_ITEM_TYPE_VLAN:
 147         case RTE_FLOW_ITEM_TYPE_IPV4:
 148         case RTE_FLOW_ITEM_TYPE_IPV6:
 149         case RTE_FLOW_ITEM_TYPE_UDP:
 150         case RTE_FLOW_ITEM_TYPE_TCP:
 151         case RTE_FLOW_ITEM_TYPE_VXLAN:
 152         case RTE_FLOW_ITEM_TYPE_NVGRE:
 153         case RTE_FLOW_ITEM_TYPE_GRE:
 154         case RTE_FLOW_ITEM_TYPE_GENEVE:
 155         case RTE_FLOW_ITEM_TYPE_MPLS:
 156         case RTE_FLOW_ITEM_TYPE_VXLAN_GPE:
 157         case RTE_FLOW_ITEM_TYPE_GRE_KEY:
 158         case RTE_FLOW_ITEM_TYPE_IPV6_FRAG_EXT:
 159         case RTE_FLOW_ITEM_TYPE_GTP:
 160                 return true;
 161         default:
 162                 break;
 163         }
 164         return false;
 165 }
 166
 167 /**
 168  * Network Service Header (NSH) and its next protocol values
 169  * are described in RFC-8393.
 170  */
 171 static enum rte_flow_item_type
 172 mlx5_nsh_proto_to_item_type(uint8_t proto_spec, uint8_t proto_mask)
 173 {
 174         enum rte_flow_item_type type;
 175
 176         switch (proto_mask & proto_spec) {
 177         case RTE_VXLAN_GPE_TYPE_IPV4:
 178                 type = RTE_FLOW_ITEM_TYPE_IPV4;
 179                 break;
 180         case RTE_VXLAN_GPE_TYPE_IPV6:
 181                 type = RTE_VXLAN_GPE_TYPE_IPV6;
 182                 break;
 183         case RTE_VXLAN_GPE_TYPE_ETH:
 184                 type = RTE_FLOW_ITEM_TYPE_ETH;
 185                 break;
 186         default:
 187                 type = RTE_FLOW_ITEM_TYPE_END;
 188         }
 189         return type;
 190 }
 191
 192 static enum rte_flow_item_type
 193 mlx5_inet_proto_to_item_type(uint8_t proto_spec, uint8_t proto_mask)
 194 {
 195         enum rte_flow_item_type type;
 196
 197         switch (proto_mask & proto_spec) {
 198         case IPPROTO_UDP:
 199                 type = RTE_FLOW_ITEM_TYPE_UDP;
 200                 break;
 201         case IPPROTO_TCP:
 202                 type = RTE_FLOW_ITEM_TYPE_TCP;
 203                 break;
 204         case IPPROTO_IP:
 205                 type = RTE_FLOW_ITEM_TYPE_IPV4;
 206                 break;
 207         case IPPROTO_IPV6:
 208                 type = RTE_FLOW_ITEM_TYPE_IPV6;
 209                 break;
 210         default:
 211                 type = RTE_FLOW_ITEM_TYPE_END;
 212         }
 213         return type;
 214 }
 215
 216 static enum rte_flow_item_type
 217 mlx5_ethertype_to_item_type(rte_be16_t type_spec,
 218                             rte_be16_t type_mask, bool is_tunnel)
 219 {
 220         enum rte_flow_item_type type;
 221
 222         switch (rte_be_to_cpu_16(type_spec & type_mask)) {
 223         case RTE_ETHER_TYPE_TEB:
 224                 type = is_tunnel ?
 225                        RTE_FLOW_ITEM_TYPE_ETH : RTE_FLOW_ITEM_TYPE_END;
 226                 break;
 227         case RTE_ETHER_TYPE_VLAN:
 228                 type = !is_tunnel ?
 229                        RTE_FLOW_ITEM_TYPE_VLAN : RTE_FLOW_ITEM_TYPE_END;
 230                 break;
 231         case RTE_ETHER_TYPE_IPV4:
 232                 type = RTE_FLOW_ITEM_TYPE_IPV4;
 233                 break;
 234         case RTE_ETHER_TYPE_IPV6:
 235                 type = RTE_FLOW_ITEM_TYPE_IPV6;
 236                 break;
 237         default:
 238                 type = RTE_FLOW_ITEM_TYPE_END;
 239         }
 240         return type;
 241 }
 242
 243 static enum rte_flow_item_type
 244 mlx5_flow_expand_rss_item_complete(const struct rte_flow_item *item)
 245 {
 246 #define MLX5_XSET_ITEM_MASK_SPEC(type, fld)                              \
 247         do {                                                             \
 248                 const void *m = item->mask;                              \
 249                 const void *s = item->spec;                              \
 250                 mask = m ?                                               \
 251                         ((const struct rte_flow_item_##type *)m)->fld :  \
 252                         rte_flow_item_##type##_mask.fld;                 \
 253                 spec = ((const struct rte_flow_item_##type *)s)->fld;    \
 254         } while (0)
 255
 256         enum rte_flow_item_type ret;
 257         uint16_t spec, mask;
 258
 259         if (item == NULL || item->spec == NULL)
 260                 return RTE_FLOW_ITEM_TYPE_VOID;
 261         switch (item->type) {
 262         case RTE_FLOW_ITEM_TYPE_ETH:
 263                 MLX5_XSET_ITEM_MASK_SPEC(eth, type);
 264                 if (!mask)
 265                         return RTE_FLOW_ITEM_TYPE_VOID;
 266                 ret = mlx5_ethertype_to_item_type(spec, mask, false);
 267                 break;
 268         case RTE_FLOW_ITEM_TYPE_VLAN:
 269                 MLX5_XSET_ITEM_MASK_SPEC(vlan, inner_type);
 270                 if (!mask)
 271                         return RTE_FLOW_ITEM_TYPE_VOID;
 272                 ret = mlx5_ethertype_to_item_type(spec, mask, false);
 273                 break;
 274         case RTE_FLOW_ITEM_TYPE_IPV4:
 275                 MLX5_XSET_ITEM_MASK_SPEC(ipv4, hdr.next_proto_id);
 276                 if (!mask)
 277                         return RTE_FLOW_ITEM_TYPE_VOID;
 278                 ret = mlx5_inet_proto_to_item_type(spec, mask);
 279                 break;
 280         case RTE_FLOW_ITEM_TYPE_IPV6:
 281                 MLX5_XSET_ITEM_MASK_SPEC(ipv6, hdr.proto);
 282                 if (!mask)
 283                         return RTE_FLOW_ITEM_TYPE_VOID;
 284                 ret = mlx5_inet_proto_to_item_type(spec, mask);
 285                 break;
 286         case RTE_FLOW_ITEM_TYPE_GENEVE:
 287                 MLX5_XSET_ITEM_MASK_SPEC(geneve, protocol);
 288                 ret = mlx5_ethertype_to_item_type(spec, mask, true);
 289                 break;
 290         case RTE_FLOW_ITEM_TYPE_GRE:
 291                 MLX5_XSET_ITEM_MASK_SPEC(gre, protocol);
 292                 ret = mlx5_ethertype_to_item_type(spec, mask, true);
 293                 break;
 294         case RTE_FLOW_ITEM_TYPE_VXLAN_GPE:
 295                 MLX5_XSET_ITEM_MASK_SPEC(vxlan_gpe, protocol);
 296                 ret = mlx5_nsh_proto_to_item_type(spec, mask);
 297                 break;
 298         default:
 299                 ret = RTE_FLOW_ITEM_TYPE_VOID;
 300                 break;
 301         }
 302         return ret;
 303 #undef MLX5_XSET_ITEM_MASK_SPEC
 304 }
 305
 306 static const int *
 307 mlx5_flow_expand_rss_skip_explicit(const struct mlx5_flow_expand_node graph[],
 308                 const int *next_node)
 309 {
 310         const struct mlx5_flow_expand_node *node = NULL;
 311         const int *next = next_node;
 312
 313         while (next && *next) {
 314                 /*
 315                  * Skip the nodes with the MLX5_EXPANSION_NODE_EXPLICIT
 316                  * flag set, because they were not found in the flow pattern.
 317                  */
 318                 node = &graph[*next];
 319                 if (!(node->node_flags & MLX5_EXPANSION_NODE_EXPLICIT))
 320                         break;
 321                 next = node->next;
 322         }
 323         return next;
 324 }
 325
 326 #define MLX5_RSS_EXP_ELT_N 16
 327
 328 /**
 329  * Expand RSS flows into several possible flows according to the RSS hash
 330  * fields requested and the driver capabilities.
 331  *
 332  * @param[out] buf
 333  *   Buffer to store the result expansion.
 334  * @param[in] size
 335  *   Buffer size in bytes. If 0, @p buf can be NULL.
 336  * @param[in] pattern
 337  *   User flow pattern.
 338  * @param[in] types
 339  *   RSS types to expand (see RTE_ETH_RSS_* definitions).
 340  * @param[in] graph
 341  *   Input graph to expand @p pattern according to @p types.
 342  * @param[in] graph_root_index
 343  *   Index of root node in @p graph, typically 0.
 344  *
 345  * @return
 346  *   A positive value representing the size of @p buf in bytes regardless of
 347  *   @p size on success, a negative errno value otherwise and rte_errno is
 348  *   set, the following errors are defined:
 349  *
 350  *   -E2BIG: graph-depth @p graph is too deep.
 351  *   -EINVAL: @p size has not enough space for expanded pattern.
 352  */
 353 static int
 354 mlx5_flow_expand_rss(struct mlx5_flow_expand_rss *buf, size_t size,
 355                      const struct rte_flow_item *pattern, uint64_t types,
 356                      const struct mlx5_flow_expand_node graph[],
 357                      int graph_root_index)
 358 {
 359         const struct rte_flow_item *item;
 360         const struct mlx5_flow_expand_node *node = &graph[graph_root_index];
 361         const int *next_node;
 362         const int *stack[MLX5_RSS_EXP_ELT_N];
 363         int stack_pos = 0;
 364         struct rte_flow_item flow_items[MLX5_RSS_EXP_ELT_N];
 365         unsigned int i, item_idx, last_expand_item_idx = 0;
 366         size_t lsize;
 367         size_t user_pattern_size = 0;
 368         void *addr = NULL;
 369         const struct mlx5_flow_expand_node *next = NULL;
 370         struct rte_flow_item missed_item;
 371         int missed = 0;
 372         int elt = 0;
 373         const struct rte_flow_item *last_expand_item = NULL;
 374
 375         memset(&missed_item, 0, sizeof(missed_item));
 376         lsize = offsetof(struct mlx5_flow_expand_rss, entry) +
 377                 MLX5_RSS_EXP_ELT_N * sizeof(buf->entry[0]);
 378         if (lsize > size)
 379                 return -EINVAL;
 380         buf->entry[0].priority = 0;
 381         buf->entry[0].pattern = (void *)&buf->entry[MLX5_RSS_EXP_ELT_N];
 382         buf->entries = 0;
 383         addr = buf->entry[0].pattern;
 384         for (item = pattern, item_idx = 0;
 385                         item->type != RTE_FLOW_ITEM_TYPE_END;
 386                         item++, item_idx++) {
 387                 if (!mlx5_flow_is_rss_expandable_item(item)) {
 388                         user_pattern_size += sizeof(*item);
 389                         continue;
 390                 }
 391                 last_expand_item = item;
 392                 last_expand_item_idx = item_idx;
 393                 i = 0;
 394                 while (node->next && node->next[i]) {
 395                         next = &graph[node->next[i]];
 396                         if (next->type == item->type)
 397                                 break;
 398                         if (next->node_flags & MLX5_EXPANSION_NODE_EXPLICIT) {
 399                                 node = next;
 400                                 i = 0;
 401                         } else {
 402                                 ++i;
 403                         }
 404                 }
 405                 if (next)
 406                         node = next;
 407                 user_pattern_size += sizeof(*item);
 408         }
 409         user_pattern_size += sizeof(*item); /* Handle END item. */
 410         lsize += user_pattern_size;
 411         if (lsize > size)
 412                 return -EINVAL;
 413         /* Copy the user pattern in the first entry of the buffer. */
 414         rte_memcpy(addr, pattern, user_pattern_size);
 415         addr = (void *)(((uintptr_t)addr) + user_pattern_size);
 416         buf->entries = 1;
 417         /* Start expanding. */
 418         memset(flow_items, 0, sizeof(flow_items));
 419         user_pattern_size -= sizeof(*item);
 420         /*
 421          * Check if the last valid item has spec set, need complete pattern,
 422          * and the pattern can be used for expansion.
 423          */
 424         missed_item.type = mlx5_flow_expand_rss_item_complete(last_expand_item);
 425         if (missed_item.type == RTE_FLOW_ITEM_TYPE_END) {
 426                 /* Item type END indicates expansion is not required. */
 427                 return lsize;
 428         }
 429         if (missed_item.type != RTE_FLOW_ITEM_TYPE_VOID) {
 430                 next = NULL;
 431                 missed = 1;
 432                 i = 0;
 433                 while (node->next && node->next[i]) {
 434                         next = &graph[node->next[i]];
 435                         if (next->type == missed_item.type) {
 436                                 flow_items[0].type = missed_item.type;
 437                                 flow_items[1].type = RTE_FLOW_ITEM_TYPE_END;
 438                                 break;
 439                         }
 440                         if (next->node_flags & MLX5_EXPANSION_NODE_EXPLICIT) {
 441                                 node = next;
 442                                 i = 0;
 443                         } else {
 444                                 ++i;
 445                         }
 446                         next = NULL;
 447                 }
 448         }
 449         if (next && missed) {
 450                 elt = 2; /* missed item + item end. */
 451                 node = next;
 452                 lsize += elt * sizeof(*item) + user_pattern_size;
 453                 if (lsize > size)
 454                         return -EINVAL;
 455                 if (node->rss_types & types) {
 456                         buf->entry[buf->entries].priority = 1;
 457                         buf->entry[buf->entries].pattern = addr;
 458                         buf->entries++;
 459                         rte_memcpy(addr, buf->entry[0].pattern,
 460                                    user_pattern_size);
 461                         addr = (void *)(((uintptr_t)addr) + user_pattern_size);
 462                         rte_memcpy(addr, flow_items, elt * sizeof(*item));
 463                         addr = (void *)(((uintptr_t)addr) +
 464                                         elt * sizeof(*item));
 465                 }
 466         } else if (last_expand_item != NULL) {
 467                 node = mlx5_flow_expand_rss_adjust_node(pattern,
 468                                 last_expand_item_idx, graph, node);
 469         }
 470         memset(flow_items, 0, sizeof(flow_items));
 471         next_node = mlx5_flow_expand_rss_skip_explicit(graph,
 472                         node->next);
 473         stack[stack_pos] = next_node;
 474         node = next_node ? &graph[*next_node] : NULL;
 475         while (node) {
 476                 flow_items[stack_pos].type = node->type;
 477                 if (node->rss_types & types) {
 478                         size_t n;
 479                         /*
 480                          * compute the number of items to copy from the
 481                          * expansion and copy it.
 482                          * When the stack_pos is 0, there are 1 element in it,
 483                          * plus the addition END item.
 484                          */
 485                         elt = stack_pos + 2;
 486                         flow_items[stack_pos + 1].type = RTE_FLOW_ITEM_TYPE_END;
 487                         lsize += elt * sizeof(*item) + user_pattern_size;
 488                         if (lsize > size)
 489                                 return -EINVAL;
 490                         n = elt * sizeof(*item);
 491                         buf->entry[buf->entries].priority =
 492                                 stack_pos + 1 + missed;
 493                         buf->entry[buf->entries].pattern = addr;
 494                         buf->entries++;
 495                         rte_memcpy(addr, buf->entry[0].pattern,
 496                                    user_pattern_size);
 497                         addr = (void *)(((uintptr_t)addr) +
 498                                         user_pattern_size);
 499                         rte_memcpy(addr, &missed_item,
 500                                    missed * sizeof(*item));
 501                         addr = (void *)(((uintptr_t)addr) +
 502                                 missed * sizeof(*item));
 503                         rte_memcpy(addr, flow_items, n);
 504                         addr = (void *)(((uintptr_t)addr) + n);
 505                 }
 506                 /* Go deeper. */
 507                 if (!(node->node_flags & MLX5_EXPANSION_NODE_OPTIONAL) &&
 508                                 node->next) {
 509                         next_node = mlx5_flow_expand_rss_skip_explicit(graph,
 510                                         node->next);
 511                         if (stack_pos++ == MLX5_RSS_EXP_ELT_N) {
 512                                 rte_errno = E2BIG;
 513                                 return -rte_errno;
 514                         }
 515                         stack[stack_pos] = next_node;
 516                 } else if (*(next_node + 1)) {
 517                         /* Follow up with the next possibility. */
 518                         next_node = mlx5_flow_expand_rss_skip_explicit(graph,
 519                                         ++next_node);
 520                 } else if (!stack_pos) {
 521                         /*
 522                          * Completing the traverse over the different paths.
 523                          * The next_node is advanced to the terminator.
 524                          */
 525                         ++next_node;
 526                 } else {
 527                         /* Move to the next path. */
 528                         while (stack_pos) {
 529                                 next_node = stack[--stack_pos];
 530                                 next_node++;
 531                                 if (*next_node)
 532                                         break;
 533                         }
 534                         next_node = mlx5_flow_expand_rss_skip_explicit(graph,
 535                                         next_node);
 536                         stack[stack_pos] = next_node;
 537                 }
 538                 node = next_node && *next_node ? &graph[*next_node] : NULL;
 539         };
 540         return lsize;
 541 }
 542
 543 enum mlx5_expansion {
 544         MLX5_EXPANSION_ROOT,
 545         MLX5_EXPANSION_ROOT_OUTER,
 546         MLX5_EXPANSION_OUTER_ETH,
 547         MLX5_EXPANSION_OUTER_VLAN,
 548         MLX5_EXPANSION_OUTER_IPV4,
 549         MLX5_EXPANSION_OUTER_IPV4_UDP,
 550         MLX5_EXPANSION_OUTER_IPV4_TCP,
 551         MLX5_EXPANSION_OUTER_IPV6,
 552         MLX5_EXPANSION_OUTER_IPV6_UDP,
 553         MLX5_EXPANSION_OUTER_IPV6_TCP,
 554         MLX5_EXPANSION_VXLAN,
 555         MLX5_EXPANSION_STD_VXLAN,
 556         MLX5_EXPANSION_L3_VXLAN,
 557         MLX5_EXPANSION_VXLAN_GPE,
 558         MLX5_EXPANSION_GRE,
 559         MLX5_EXPANSION_NVGRE,
 560         MLX5_EXPANSION_GRE_KEY,
 561         MLX5_EXPANSION_MPLS,
 562         MLX5_EXPANSION_ETH,
 563         MLX5_EXPANSION_VLAN,
 564         MLX5_EXPANSION_IPV4,
 565         MLX5_EXPANSION_IPV4_UDP,
 566         MLX5_EXPANSION_IPV4_TCP,
 567         MLX5_EXPANSION_IPV6,
 568         MLX5_EXPANSION_IPV6_UDP,
 569         MLX5_EXPANSION_IPV6_TCP,
 570         MLX5_EXPANSION_IPV6_FRAG_EXT,
 571         MLX5_EXPANSION_GTP,
 572         MLX5_EXPANSION_GENEVE,
 573 };
 574
 575 /** Supported expansion of items. */
 576 static const struct mlx5_flow_expand_node mlx5_support_expansion[] = {
 577         [MLX5_EXPANSION_ROOT] = {
 578                 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH,
 579                                                   MLX5_EXPANSION_IPV4,
 580                                                   MLX5_EXPANSION_IPV6),
 581                 .type = RTE_FLOW_ITEM_TYPE_END,
 582         },
 583         [MLX5_EXPANSION_ROOT_OUTER] = {
 584                 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_ETH,
 585                                                   MLX5_EXPANSION_OUTER_IPV4,
 586                                                   MLX5_EXPANSION_OUTER_IPV6),
 587                 .type = RTE_FLOW_ITEM_TYPE_END,
 588         },
 589         [MLX5_EXPANSION_OUTER_ETH] = {
 590                 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_VLAN),
 591                 .type = RTE_FLOW_ITEM_TYPE_ETH,
 592                 .rss_types = 0,
 593         },
 594         [MLX5_EXPANSION_OUTER_VLAN] = {
 595                 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_IPV4,
 596                                                   MLX5_EXPANSION_OUTER_IPV6),
 597                 .type = RTE_FLOW_ITEM_TYPE_VLAN,
 598                 .node_flags = MLX5_EXPANSION_NODE_EXPLICIT,
 599         },
 600         [MLX5_EXPANSION_OUTER_IPV4] = {
 601                 .next = MLX5_FLOW_EXPAND_RSS_NEXT
 602                         (MLX5_EXPANSION_OUTER_IPV4_UDP,
 603                          MLX5_EXPANSION_OUTER_IPV4_TCP,
 604                          MLX5_EXPANSION_GRE,
 605                          MLX5_EXPANSION_NVGRE,
 606                          MLX5_EXPANSION_IPV4,
 607                          MLX5_EXPANSION_IPV6),
 608                 .type = RTE_FLOW_ITEM_TYPE_IPV4,
 609                 .rss_types = RTE_ETH_RSS_IPV4 | RTE_ETH_RSS_FRAG_IPV4 |
 610                         RTE_ETH_RSS_NONFRAG_IPV4_OTHER,
 611         },
 612         [MLX5_EXPANSION_OUTER_IPV4_UDP] = {
 613                 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_VXLAN,
 614                                                   MLX5_EXPANSION_VXLAN_GPE,
 615                                                   MLX5_EXPANSION_MPLS,
 616                                                   MLX5_EXPANSION_GENEVE,
 617                                                   MLX5_EXPANSION_GTP),
 618                 .type = RTE_FLOW_ITEM_TYPE_UDP,
 619                 .rss_types = RTE_ETH_RSS_NONFRAG_IPV4_UDP,
 620         },
 621         [MLX5_EXPANSION_OUTER_IPV4_TCP] = {
 622                 .type = RTE_FLOW_ITEM_TYPE_TCP,
 623                 .rss_types = RTE_ETH_RSS_NONFRAG_IPV4_TCP,
 624         },
 625         [MLX5_EXPANSION_OUTER_IPV6] = {
 626                 .next = MLX5_FLOW_EXPAND_RSS_NEXT
 627                         (MLX5_EXPANSION_OUTER_IPV6_UDP,
 628                          MLX5_EXPANSION_OUTER_IPV6_TCP,
 629                          MLX5_EXPANSION_IPV4,
 630                          MLX5_EXPANSION_IPV6,
 631                          MLX5_EXPANSION_GRE,
 632                          MLX5_EXPANSION_NVGRE),
 633                 .type = RTE_FLOW_ITEM_TYPE_IPV6,
 634                 .rss_types = RTE_ETH_RSS_IPV6 | RTE_ETH_RSS_FRAG_IPV6 |
 635                         RTE_ETH_RSS_NONFRAG_IPV6_OTHER,
 636         },
 637         [MLX5_EXPANSION_OUTER_IPV6_UDP] = {
 638                 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_VXLAN,
 639                                                   MLX5_EXPANSION_VXLAN_GPE,
 640                                                   MLX5_EXPANSION_MPLS,
 641                                                   MLX5_EXPANSION_GENEVE,
 642                                                   MLX5_EXPANSION_GTP),
 643                 .type = RTE_FLOW_ITEM_TYPE_UDP,
 644                 .rss_types = RTE_ETH_RSS_NONFRAG_IPV6_UDP,
 645         },
 646         [MLX5_EXPANSION_OUTER_IPV6_TCP] = {
 647                 .type = RTE_FLOW_ITEM_TYPE_TCP,
 648                 .rss_types = RTE_ETH_RSS_NONFRAG_IPV6_TCP,
 649         },
 650         [MLX5_EXPANSION_VXLAN] = {
 651                 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH,
 652                                                   MLX5_EXPANSION_IPV4,
 653                                                   MLX5_EXPANSION_IPV6),
 654                 .type = RTE_FLOW_ITEM_TYPE_VXLAN,
 655         },
 656         [MLX5_EXPANSION_STD_VXLAN] = {
 657                         .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH),
 658                                         .type = RTE_FLOW_ITEM_TYPE_VXLAN,
 659         },
 660         [MLX5_EXPANSION_L3_VXLAN] = {
 661                         .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4,
 662                                         MLX5_EXPANSION_IPV6),
 663                                         .type = RTE_FLOW_ITEM_TYPE_VXLAN,
 664         },
 665         [MLX5_EXPANSION_VXLAN_GPE] = {
 666                 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH,
 667                                                   MLX5_EXPANSION_IPV4,
 668                                                   MLX5_EXPANSION_IPV6),
 669                 .type = RTE_FLOW_ITEM_TYPE_VXLAN_GPE,
 670         },
 671         [MLX5_EXPANSION_GRE] = {
 672                 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH,
 673                                                   MLX5_EXPANSION_IPV4,
 674                                                   MLX5_EXPANSION_IPV6,
 675                                                   MLX5_EXPANSION_GRE_KEY,
 676                                                   MLX5_EXPANSION_MPLS),
 677                 .type = RTE_FLOW_ITEM_TYPE_GRE,
 678         },
 679         [MLX5_EXPANSION_GRE_KEY] = {
 680                 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4,
 681                                                   MLX5_EXPANSION_IPV6,
 682                                                   MLX5_EXPANSION_MPLS),
 683                 .type = RTE_FLOW_ITEM_TYPE_GRE_KEY,
 684                 .node_flags = MLX5_EXPANSION_NODE_OPTIONAL,
 685         },
 686         [MLX5_EXPANSION_NVGRE] = {
 687                 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH),
 688                 .type = RTE_FLOW_ITEM_TYPE_NVGRE,
 689         },
 690         [MLX5_EXPANSION_MPLS] = {
 691                 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4,
 692                                                   MLX5_EXPANSION_IPV6,
 693                                                   MLX5_EXPANSION_ETH),
 694                 .type = RTE_FLOW_ITEM_TYPE_MPLS,
 695                 .node_flags = MLX5_EXPANSION_NODE_OPTIONAL,
 696         },
 697         [MLX5_EXPANSION_ETH] = {
 698                 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_VLAN),
 699                 .type = RTE_FLOW_ITEM_TYPE_ETH,
 700         },
 701         [MLX5_EXPANSION_VLAN] = {
 702                 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4,
 703                                                   MLX5_EXPANSION_IPV6),
 704                 .type = RTE_FLOW_ITEM_TYPE_VLAN,
 705                 .node_flags = MLX5_EXPANSION_NODE_EXPLICIT,
 706         },
 707         [MLX5_EXPANSION_IPV4] = {
 708                 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4_UDP,
 709                                                   MLX5_EXPANSION_IPV4_TCP),
 710                 .type = RTE_FLOW_ITEM_TYPE_IPV4,
 711                 .rss_types = RTE_ETH_RSS_IPV4 | RTE_ETH_RSS_FRAG_IPV4 |
 712                         RTE_ETH_RSS_NONFRAG_IPV4_OTHER,
 713         },
 714         [MLX5_EXPANSION_IPV4_UDP] = {
 715                 .type = RTE_FLOW_ITEM_TYPE_UDP,
 716                 .rss_types = RTE_ETH_RSS_NONFRAG_IPV4_UDP,
 717         },
 718         [MLX5_EXPANSION_IPV4_TCP] = {
 719                 .type = RTE_FLOW_ITEM_TYPE_TCP,
 720                 .rss_types = RTE_ETH_RSS_NONFRAG_IPV4_TCP,
 721         },
 722         [MLX5_EXPANSION_IPV6] = {
 723                 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV6_UDP,
 724                                                   MLX5_EXPANSION_IPV6_TCP,
 725                                                   MLX5_EXPANSION_IPV6_FRAG_EXT),
 726                 .type = RTE_FLOW_ITEM_TYPE_IPV6,
 727                 .rss_types = RTE_ETH_RSS_IPV6 | RTE_ETH_RSS_FRAG_IPV6 |
 728                         RTE_ETH_RSS_NONFRAG_IPV6_OTHER,
 729         },
 730         [MLX5_EXPANSION_IPV6_UDP] = {
 731                 .type = RTE_FLOW_ITEM_TYPE_UDP,
 732                 .rss_types = RTE_ETH_RSS_NONFRAG_IPV6_UDP,
 733         },
 734         [MLX5_EXPANSION_IPV6_TCP] = {
 735                 .type = RTE_FLOW_ITEM_TYPE_TCP,
 736                 .rss_types = RTE_ETH_RSS_NONFRAG_IPV6_TCP,
 737         },
 738         [MLX5_EXPANSION_IPV6_FRAG_EXT] = {
 739                 .type = RTE_FLOW_ITEM_TYPE_IPV6_FRAG_EXT,
 740         },
 741         [MLX5_EXPANSION_GTP] = {
 742                 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4,
 743                                                   MLX5_EXPANSION_IPV6),
 744                 .type = RTE_FLOW_ITEM_TYPE_GTP,
 745         },
 746         [MLX5_EXPANSION_GENEVE] = {
 747                 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH,
 748                                                   MLX5_EXPANSION_IPV4,
 749                                                   MLX5_EXPANSION_IPV6),
 750                 .type = RTE_FLOW_ITEM_TYPE_GENEVE,
 751         },
 752 };
 753
 754 static struct rte_flow_action_handle *
 755 mlx5_action_handle_create(struct rte_eth_dev *dev,
 756                           const struct rte_flow_indir_action_conf *conf,
 757                           const struct rte_flow_action *action,
 758                           struct rte_flow_error *error);
 759 static int mlx5_action_handle_destroy
 760                                 (struct rte_eth_dev *dev,
 761                                  struct rte_flow_action_handle *handle,
 762                                  struct rte_flow_error *error);
 763 static int mlx5_action_handle_update
 764                                 (struct rte_eth_dev *dev,
 765                                  struct rte_flow_action_handle *handle,
 766                                  const void *update,
 767                                  struct rte_flow_error *error);
 768 static int mlx5_action_handle_query
 769                                 (struct rte_eth_dev *dev,
 770                                  const struct rte_flow_action_handle *handle,
 771                                  void *data,
 772                                  struct rte_flow_error *error);
 773 static int
 774 mlx5_flow_tunnel_decap_set(struct rte_eth_dev *dev,
 775                     struct rte_flow_tunnel *app_tunnel,
 776                     struct rte_flow_action **actions,
 777                     uint32_t *num_of_actions,
 778                     struct rte_flow_error *error);
 779 static int
 780 mlx5_flow_tunnel_match(struct rte_eth_dev *dev,
 781                        struct rte_flow_tunnel *app_tunnel,
 782                        struct rte_flow_item **items,
 783                        uint32_t *num_of_items,
 784                        struct rte_flow_error *error);
 785 static int
 786 mlx5_flow_tunnel_item_release(struct rte_eth_dev *dev,
 787                               struct rte_flow_item *pmd_items,
 788                               uint32_t num_items, struct rte_flow_error *err);
 789 static int
 790 mlx5_flow_tunnel_action_release(struct rte_eth_dev *dev,
 791                                 struct rte_flow_action *pmd_actions,
 792                                 uint32_t num_actions,
 793                                 struct rte_flow_error *err);
 794 static int
 795 mlx5_flow_tunnel_get_restore_info(struct rte_eth_dev *dev,
 796                                   struct rte_mbuf *m,
 797                                   struct rte_flow_restore_info *info,
 798                                   struct rte_flow_error *err);
 799 static struct rte_flow_item_flex_handle *
 800 mlx5_flow_flex_item_create(struct rte_eth_dev *dev,
 801                            const struct rte_flow_item_flex_conf *conf,
 802                            struct rte_flow_error *error);
 803 static int
 804 mlx5_flow_flex_item_release(struct rte_eth_dev *dev,
 805                             const struct rte_flow_item_flex_handle *handle,
 806                             struct rte_flow_error *error);
 807
 808 static const struct rte_flow_ops mlx5_flow_ops = {
 809         .validate = mlx5_flow_validate,
 810         .create = mlx5_flow_create,
 811         .destroy = mlx5_flow_destroy,
 812         .flush = mlx5_flow_flush,
 813         .isolate = mlx5_flow_isolate,
 814         .query = mlx5_flow_query,
 815         .dev_dump = mlx5_flow_dev_dump,
 816         .get_aged_flows = mlx5_flow_get_aged_flows,
 817         .action_handle_create = mlx5_action_handle_create,
 818         .action_handle_destroy = mlx5_action_handle_destroy,
 819         .action_handle_update = mlx5_action_handle_update,
 820         .action_handle_query = mlx5_action_handle_query,
 821         .tunnel_decap_set = mlx5_flow_tunnel_decap_set,
 822         .tunnel_match = mlx5_flow_tunnel_match,
 823         .tunnel_action_decap_release = mlx5_flow_tunnel_action_release,
 824         .tunnel_item_release = mlx5_flow_tunnel_item_release,
 825         .get_restore_info = mlx5_flow_tunnel_get_restore_info,
 826         .flex_item_create = mlx5_flow_flex_item_create,
 827         .flex_item_release = mlx5_flow_flex_item_release,
 828 };
 829
 830 /* Tunnel information. */
 831 struct mlx5_flow_tunnel_info {
 832         uint64_t tunnel; /**< Tunnel bit (see MLX5_FLOW_*). */
 833         uint32_t ptype; /**< Tunnel Ptype (see RTE_PTYPE_*). */
 834 };
 835
 836 static struct mlx5_flow_tunnel_info tunnels_info[] = {
 837         {
 838                 .tunnel = MLX5_FLOW_LAYER_VXLAN,
 839                 .ptype = RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_L4_UDP,
 840         },
 841         {
 842                 .tunnel = MLX5_FLOW_LAYER_GENEVE,
 843                 .ptype = RTE_PTYPE_TUNNEL_GENEVE | RTE_PTYPE_L4_UDP,
 844         },
 845         {
 846                 .tunnel = MLX5_FLOW_LAYER_VXLAN_GPE,
 847                 .ptype = RTE_PTYPE_TUNNEL_VXLAN_GPE | RTE_PTYPE_L4_UDP,
 848         },
 849         {
 850                 .tunnel = MLX5_FLOW_LAYER_GRE,
 851                 .ptype = RTE_PTYPE_TUNNEL_GRE,
 852         },
 853         {
 854                 .tunnel = MLX5_FLOW_LAYER_MPLS | MLX5_FLOW_LAYER_OUTER_L4_UDP,
 855                 .ptype = RTE_PTYPE_TUNNEL_MPLS_IN_UDP | RTE_PTYPE_L4_UDP,
 856         },
 857         {
 858                 .tunnel = MLX5_FLOW_LAYER_MPLS,
 859                 .ptype = RTE_PTYPE_TUNNEL_MPLS_IN_GRE,
 860         },
 861         {
 862                 .tunnel = MLX5_FLOW_LAYER_NVGRE,
 863                 .ptype = RTE_PTYPE_TUNNEL_NVGRE,
 864         },
 865         {
 866                 .tunnel = MLX5_FLOW_LAYER_IPIP,
 867                 .ptype = RTE_PTYPE_TUNNEL_IP,
 868         },
 869         {
 870                 .tunnel = MLX5_FLOW_LAYER_IPV6_ENCAP,
 871                 .ptype = RTE_PTYPE_TUNNEL_IP,
 872         },
 873         {
 874                 .tunnel = MLX5_FLOW_LAYER_GTP,
 875                 .ptype = RTE_PTYPE_TUNNEL_GTPU,
 876         },
 877 };
 878
 879
 880
 881 /**
 882  * Translate tag ID to register.
 883  *
 884  * @param[in] dev
 885  *   Pointer to the Ethernet device structure.
 886  * @param[in] feature
 887  *   The feature that request the register.
 888  * @param[in] id
 889  *   The request register ID.
 890  * @param[out] error
 891  *   Error description in case of any.
 892  *
 893  * @return
 894  *   The request register on success, a negative errno
 895  *   value otherwise and rte_errno is set.
 896  */
 897 int
 898 mlx5_flow_get_reg_id(struct rte_eth_dev *dev,
 899                      enum mlx5_feature_name feature,
 900                      uint32_t id,
 901                      struct rte_flow_error *error)
 902 {
 903         struct mlx5_priv *priv = dev->data->dev_private;
 904         struct mlx5_dev_config *config = &priv->config;
 905         enum modify_reg start_reg;
 906         bool skip_mtr_reg = false;
 907
 908         switch (feature) {
 909         case MLX5_HAIRPIN_RX:
 910                 return REG_B;
 911         case MLX5_HAIRPIN_TX:
 912                 return REG_A;
 913         case MLX5_METADATA_RX:
 914                 switch (config->dv_xmeta_en) {
 915                 case MLX5_XMETA_MODE_LEGACY:
 916                         return REG_B;
 917                 case MLX5_XMETA_MODE_META16:
 918                         return REG_C_0;
 919                 case MLX5_XMETA_MODE_META32:
 920                         return REG_C_1;
 921                 }
 922                 break;
 923         case MLX5_METADATA_TX:
 924                 return REG_A;
 925         case MLX5_METADATA_FDB:
 926                 switch (config->dv_xmeta_en) {
 927                 case MLX5_XMETA_MODE_LEGACY:
 928                         return REG_NON;
 929                 case MLX5_XMETA_MODE_META16:
 930                         return REG_C_0;
 931                 case MLX5_XMETA_MODE_META32:
 932                         return REG_C_1;
 933                 }
 934                 break;
 935         case MLX5_FLOW_MARK:
 936                 switch (config->dv_xmeta_en) {
 937                 case MLX5_XMETA_MODE_LEGACY:
 938                         return REG_NON;
 939                 case MLX5_XMETA_MODE_META16:
 940                         return REG_C_1;
 941                 case MLX5_XMETA_MODE_META32:
 942                         return REG_C_0;
 943                 }
 944                 break;
 945         case MLX5_MTR_ID:
 946                 /*
 947                  * If meter color and meter id share one register, flow match
 948                  * should use the meter color register for match.
 949                  */
 950                 if (priv->mtr_reg_share)
 951                         return priv->mtr_color_reg;
 952                 else
 953                         return priv->mtr_color_reg != REG_C_2 ? REG_C_2 :
 954                                REG_C_3;
 955         case MLX5_MTR_COLOR:
 956         case MLX5_ASO_FLOW_HIT:
 957         case MLX5_ASO_CONNTRACK:
 958         case MLX5_SAMPLE_ID:
 959                 /* All features use the same REG_C. */
 960                 MLX5_ASSERT(priv->mtr_color_reg != REG_NON);
 961                 return priv->mtr_color_reg;
 962         case MLX5_COPY_MARK:
 963                 /*
 964                  * Metadata COPY_MARK register using is in meter suffix sub
 965                  * flow while with meter. It's safe to share the same register.
 966                  */
 967                 return priv->mtr_color_reg != REG_C_2 ? REG_C_2 : REG_C_3;
 968         case MLX5_APP_TAG:
 969                 /*
 970                  * If meter is enable, it will engage the register for color
 971                  * match and flow match. If meter color match is not using the
 972                  * REG_C_2, need to skip the REG_C_x be used by meter color
 973                  * match.
 974                  * If meter is disable, free to use all available registers.
 975                  */
 976                 start_reg = priv->mtr_color_reg != REG_C_2 ? REG_C_2 :
 977                             (priv->mtr_reg_share ? REG_C_3 : REG_C_4);
 978                 skip_mtr_reg = !!(priv->mtr_en && start_reg == REG_C_2);
 979                 if (id > (uint32_t)(REG_C_7 - start_reg))
 980                         return rte_flow_error_set(error, EINVAL,
 981                                                   RTE_FLOW_ERROR_TYPE_ITEM,
 982                                                   NULL, "invalid tag id");
 983                 if (priv->sh->flow_mreg_c[id + start_reg - REG_C_0] == REG_NON)
 984                         return rte_flow_error_set(error, ENOTSUP,
 985                                                   RTE_FLOW_ERROR_TYPE_ITEM,
 986                                                   NULL, "unsupported tag id");
 987                 /*
 988                  * This case means meter is using the REG_C_x great than 2.
 989                  * Take care not to conflict with meter color REG_C_x.
 990                  * If the available index REG_C_y >= REG_C_x, skip the
 991                  * color register.
 992                  */
 993                 if (skip_mtr_reg && priv->sh->flow_mreg_c
 994                     [id + start_reg - REG_C_0] >= priv->mtr_color_reg) {
 995                         if (id >= (uint32_t)(REG_C_7 - start_reg))
 996                                 return rte_flow_error_set(error, EINVAL,
 997                                                        RTE_FLOW_ERROR_TYPE_ITEM,
 998                                                         NULL, "invalid tag id");
 999                         if (priv->sh->flow_mreg_c
1000                             [id + 1 + start_reg - REG_C_0] != REG_NON)
1001                                 return priv->sh->flow_mreg_c
1002                                                [id + 1 + start_reg - REG_C_0];
1003                         return rte_flow_error_set(error, ENOTSUP,
1004                                                   RTE_FLOW_ERROR_TYPE_ITEM,
1005                                                   NULL, "unsupported tag id");
1006                 }
1007                 return priv->sh->flow_mreg_c[id + start_reg - REG_C_0];
1008         }
1009         MLX5_ASSERT(false);
1010         return rte_flow_error_set(error, EINVAL,
1011                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1012                                   NULL, "invalid feature name");
1013 }
1014
1015 /**
1016  * Check extensive flow metadata register support.
1017  *
1018  * @param dev
1019  *   Pointer to rte_eth_dev structure.
1020  *
1021  * @return
1022  *   True if device supports extensive flow metadata register, otherwise false.
1023  */
1024 bool
1025 mlx5_flow_ext_mreg_supported(struct rte_eth_dev *dev)
1026 {
1027         struct mlx5_priv *priv = dev->data->dev_private;
1028
1029         /*
1030          * Having available reg_c can be regarded inclusively as supporting
1031          * extensive flow metadata register, which could mean,
1032          * - metadata register copy action by modify header.
1033          * - 16 modify header actions is supported.
1034          * - reg_c's are preserved across different domain (FDB and NIC) on
1035          *   packet loopback by flow lookup miss.
1036          */
1037         return priv->sh->flow_mreg_c[2] != REG_NON;
1038 }
1039
1040 /**
1041  * Get the lowest priority.
1042  *
1043  * @param[in] dev
1044  *   Pointer to the Ethernet device structure.
1045  * @param[in] attributes
1046  *   Pointer to device flow rule attributes.
1047  *
1048  * @return
1049  *   The value of lowest priority of flow.
1050  */
1051 uint32_t
1052 mlx5_get_lowest_priority(struct rte_eth_dev *dev,
1053                           const struct rte_flow_attr *attr)
1054 {
1055         struct mlx5_priv *priv = dev->data->dev_private;
1056
1057         if (!attr->group && !attr->transfer)
1058                 return priv->sh->flow_max_priority - 2;
1059         return MLX5_NON_ROOT_FLOW_MAX_PRIO - 1;
1060 }
1061
1062 /**
1063  * Calculate matcher priority of the flow.
1064  *
1065  * @param[in] dev
1066  *   Pointer to the Ethernet device structure.
1067  * @param[in] attr
1068  *   Pointer to device flow rule attributes.
1069  * @param[in] subpriority
1070  *   The priority based on the items.
1071  * @param[in] external
1072  *   Flow is user flow.
1073  * @return
1074  *   The matcher priority of the flow.
1075  */
1076 uint16_t
1077 mlx5_get_matcher_priority(struct rte_eth_dev *dev,
1078                           const struct rte_flow_attr *attr,
1079                           uint32_t subpriority, bool external)
1080 {
1081         uint16_t priority = (uint16_t)attr->priority;
1082         struct mlx5_priv *priv = dev->data->dev_private;
1083
1084         if (!attr->group && !attr->transfer) {
1085                 if (attr->priority == MLX5_FLOW_LOWEST_PRIO_INDICATOR)
1086                         priority = priv->sh->flow_max_priority - 1;
1087                 return mlx5_os_flow_adjust_priority(dev, priority, subpriority);
1088         } else if (!external && attr->transfer && attr->group == 0 &&
1089                    attr->priority == MLX5_FLOW_LOWEST_PRIO_INDICATOR) {
1090                 return (priv->sh->flow_max_priority - 1) * 3;
1091         }
1092         if (attr->priority == MLX5_FLOW_LOWEST_PRIO_INDICATOR)
1093                 priority = MLX5_NON_ROOT_FLOW_MAX_PRIO;
1094         return priority * 3 + subpriority;
1095 }
1096
1097 /**
1098  * Verify the @p item specifications (spec, last, mask) are compatible with the
1099  * NIC capabilities.
1100  *
1101  * @param[in] item
1102  *   Item specification.
1103  * @param[in] mask
1104  *   @p item->mask or flow default bit-masks.
1105  * @param[in] nic_mask
1106  *   Bit-masks covering supported fields by the NIC to compare with user mask.
1107  * @param[in] size
1108  *   Bit-masks size in bytes.
1109  * @param[in] range_accepted
1110  *   True if range of values is accepted for specific fields, false otherwise.
1111  * @param[out] error
1112  *   Pointer to error structure.
1113  *
1114  * @return
1115  *   0 on success, a negative errno value otherwise and rte_errno is set.
1116  */
1117 int
1118 mlx5_flow_item_acceptable(const struct rte_flow_item *item,
1119                           const uint8_t *mask,
1120                           const uint8_t *nic_mask,
1121                           unsigned int size,
1122                           bool range_accepted,
1123                           struct rte_flow_error *error)
1124 {
1125         unsigned int i;
1126
1127         MLX5_ASSERT(nic_mask);
1128         for (i = 0; i < size; ++i)
1129                 if ((nic_mask[i] | mask[i]) != nic_mask[i])
1130                         return rte_flow_error_set(error, ENOTSUP,
1131                                                   RTE_FLOW_ERROR_TYPE_ITEM,
1132                                                   item,
1133                                                   "mask enables non supported"
1134                                                   " bits");
1135         if (!item->spec && (item->mask || item->last))
1136                 return rte_flow_error_set(error, EINVAL,
1137                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
1138                                           "mask/last without a spec is not"
1139                                           " supported");
1140         if (item->spec && item->last && !range_accepted) {
1141                 uint8_t spec[size];
1142                 uint8_t last[size];
1143                 unsigned int i;
1144                 int ret;
1145
1146                 for (i = 0; i < size; ++i) {
1147                         spec[i] = ((const uint8_t *)item->spec)[i] & mask[i];
1148                         last[i] = ((const uint8_t *)item->last)[i] & mask[i];
1149                 }
1150                 ret = memcmp(spec, last, size);
1151                 if (ret != 0)
1152                         return rte_flow_error_set(error, EINVAL,
1153                                                   RTE_FLOW_ERROR_TYPE_ITEM,
1154                                                   item,
1155                                                   "range is not valid");
1156         }
1157         return 0;
1158 }
1159
1160 /**
1161  * Adjust the hash fields according to the @p flow information.
1162  *
1163  * @param[in] dev_flow.
1164  *   Pointer to the mlx5_flow.
1165  * @param[in] tunnel
1166  *   1 when the hash field is for a tunnel item.
1167  * @param[in] layer_types
1168  *   RTE_ETH_RSS_* types.
1169  * @param[in] hash_fields
1170  *   Item hash fields.
1171  *
1172  * @return
1173  *   The hash fields that should be used.
1174  */
1175 uint64_t
1176 mlx5_flow_hashfields_adjust(struct mlx5_flow_rss_desc *rss_desc,
1177                             int tunnel __rte_unused, uint64_t layer_types,
1178                             uint64_t hash_fields)
1179 {
1180 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
1181         int rss_request_inner = rss_desc->level >= 2;
1182
1183         /* Check RSS hash level for tunnel. */
1184         if (tunnel && rss_request_inner)
1185                 hash_fields |= IBV_RX_HASH_INNER;
1186         else if (tunnel || rss_request_inner)
1187                 return 0;
1188 #endif
1189         /* Check if requested layer matches RSS hash fields. */
1190         if (!(rss_desc->types & layer_types))
1191                 return 0;
1192         return hash_fields;
1193 }
1194
1195 /**
1196  * Lookup and set the ptype in the data Rx part.  A single Ptype can be used,
1197  * if several tunnel rules are used on this queue, the tunnel ptype will be
1198  * cleared.
1199  *
1200  * @param rxq_ctrl
1201  *   Rx queue to update.
1202  */
1203 static void
1204 flow_rxq_tunnel_ptype_update(struct mlx5_rxq_ctrl *rxq_ctrl)
1205 {
1206         unsigned int i;
1207         uint32_t tunnel_ptype = 0;
1208
1209         /* Look up for the ptype to use. */
1210         for (i = 0; i != MLX5_FLOW_TUNNEL; ++i) {
1211                 if (!rxq_ctrl->flow_tunnels_n[i])
1212                         continue;
1213                 if (!tunnel_ptype) {
1214                         tunnel_ptype = tunnels_info[i].ptype;
1215                 } else {
1216                         tunnel_ptype = 0;
1217                         break;
1218                 }
1219         }
1220         rxq_ctrl->rxq.tunnel = tunnel_ptype;
1221 }
1222
1223 /**
1224  * Set the Rx queue flags (Mark/Flag and Tunnel Ptypes) according to the device
1225  * flow.
1226  *
1227  * @param[in] dev
1228  *   Pointer to the Ethernet device structure.
1229  * @param[in] dev_handle
1230  *   Pointer to device flow handle structure.
1231  */
1232 void
1233 flow_drv_rxq_flags_set(struct rte_eth_dev *dev,
1234                        struct mlx5_flow_handle *dev_handle)
1235 {
1236         struct mlx5_priv *priv = dev->data->dev_private;
1237         const int tunnel = !!(dev_handle->layers & MLX5_FLOW_LAYER_TUNNEL);
1238         struct mlx5_ind_table_obj *ind_tbl = NULL;
1239         unsigned int i;
1240
1241         if (dev_handle->fate_action == MLX5_FLOW_FATE_QUEUE) {
1242                 struct mlx5_hrxq *hrxq;
1243
1244                 hrxq = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_HRXQ],
1245                               dev_handle->rix_hrxq);
1246                 if (hrxq)
1247                         ind_tbl = hrxq->ind_table;
1248         } else if (dev_handle->fate_action == MLX5_FLOW_FATE_SHARED_RSS) {
1249                 struct mlx5_shared_action_rss *shared_rss;
1250
1251                 shared_rss = mlx5_ipool_get
1252                         (priv->sh->ipool[MLX5_IPOOL_RSS_SHARED_ACTIONS],
1253                          dev_handle->rix_srss);
1254                 if (shared_rss)
1255                         ind_tbl = shared_rss->ind_tbl;
1256         }
1257         if (!ind_tbl)
1258                 return;
1259         for (i = 0; i != ind_tbl->queues_n; ++i) {
1260                 int idx = ind_tbl->queues[i];
1261                 struct mlx5_rxq_ctrl *rxq_ctrl = mlx5_rxq_ctrl_get(dev, idx);
1262
1263                 MLX5_ASSERT(rxq_ctrl != NULL);
1264                 if (rxq_ctrl == NULL)
1265                         continue;
1266                 /*
1267                  * To support metadata register copy on Tx loopback,
1268                  * this must be always enabled (metadata may arive
1269                  * from other port - not from local flows only.
1270                  */
1271                 if (tunnel) {
1272                         unsigned int j;
1273
1274                         /* Increase the counter matching the flow. */
1275                         for (j = 0; j != MLX5_FLOW_TUNNEL; ++j) {
1276                                 if ((tunnels_info[j].tunnel &
1277                                      dev_handle->layers) ==
1278                                     tunnels_info[j].tunnel) {
1279                                         rxq_ctrl->flow_tunnels_n[j]++;
1280                                         break;
1281                                 }
1282                         }
1283                         flow_rxq_tunnel_ptype_update(rxq_ctrl);
1284                 }
1285         }
1286 }
1287
1288 static void
1289 flow_rxq_mark_flag_set(struct rte_eth_dev *dev)
1290 {
1291         struct mlx5_priv *priv = dev->data->dev_private;
1292         struct mlx5_rxq_ctrl *rxq_ctrl;
1293
1294         if (priv->mark_enabled)
1295                 return;
1296         LIST_FOREACH(rxq_ctrl, &priv->rxqsctrl, next) {
1297                 rxq_ctrl->rxq.mark = 1;
1298         }
1299         priv->mark_enabled = 1;
1300 }
1301
1302 /**
1303  * Set the Rx queue flags (Mark/Flag and Tunnel Ptypes) for a flow
1304  *
1305  * @param[in] dev
1306  *   Pointer to the Ethernet device structure.
1307  * @param[in] flow
1308  *   Pointer to flow structure.
1309  */
1310 static void
1311 flow_rxq_flags_set(struct rte_eth_dev *dev, struct rte_flow *flow)
1312 {
1313         struct mlx5_priv *priv = dev->data->dev_private;
1314         uint32_t handle_idx;
1315         struct mlx5_flow_handle *dev_handle;
1316         struct mlx5_flow_workspace *wks = mlx5_flow_get_thread_workspace();
1317
1318         MLX5_ASSERT(wks);
1319         if (wks->mark)
1320                 flow_rxq_mark_flag_set(dev);
1321         SILIST_FOREACH(priv->sh->ipool[MLX5_IPOOL_MLX5_FLOW], flow->dev_handles,
1322                        handle_idx, dev_handle, next)
1323                 flow_drv_rxq_flags_set(dev, dev_handle);
1324 }
1325
1326 /**
1327  * Clear the Rx queue flags (Mark/Flag and Tunnel Ptype) associated with the
1328  * device flow if no other flow uses it with the same kind of request.
1329  *
1330  * @param dev
1331  *   Pointer to Ethernet device.
1332  * @param[in] dev_handle
1333  *   Pointer to the device flow handle structure.
1334  */
1335 static void
1336 flow_drv_rxq_flags_trim(struct rte_eth_dev *dev,
1337                         struct mlx5_flow_handle *dev_handle)
1338 {
1339         struct mlx5_priv *priv = dev->data->dev_private;
1340         const int tunnel = !!(dev_handle->layers & MLX5_FLOW_LAYER_TUNNEL);
1341         struct mlx5_ind_table_obj *ind_tbl = NULL;
1342         unsigned int i;
1343
1344         if (dev_handle->fate_action == MLX5_FLOW_FATE_QUEUE) {
1345                 struct mlx5_hrxq *hrxq;
1346
1347                 hrxq = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_HRXQ],
1348                               dev_handle->rix_hrxq);
1349                 if (hrxq)
1350                         ind_tbl = hrxq->ind_table;
1351         } else if (dev_handle->fate_action == MLX5_FLOW_FATE_SHARED_RSS) {
1352                 struct mlx5_shared_action_rss *shared_rss;
1353
1354                 shared_rss = mlx5_ipool_get
1355                         (priv->sh->ipool[MLX5_IPOOL_RSS_SHARED_ACTIONS],
1356                          dev_handle->rix_srss);
1357                 if (shared_rss)
1358                         ind_tbl = shared_rss->ind_tbl;
1359         }
1360         if (!ind_tbl)
1361                 return;
1362         MLX5_ASSERT(dev->data->dev_started);
1363         for (i = 0; i != ind_tbl->queues_n; ++i) {
1364                 int idx = ind_tbl->queues[i];
1365                 struct mlx5_rxq_ctrl *rxq_ctrl = mlx5_rxq_ctrl_get(dev, idx);
1366
1367                 MLX5_ASSERT(rxq_ctrl != NULL);
1368                 if (rxq_ctrl == NULL)
1369                         continue;
1370                 if (tunnel) {
1371                         unsigned int j;
1372
1373                         /* Decrease the counter matching the flow. */
1374                         for (j = 0; j != MLX5_FLOW_TUNNEL; ++j) {
1375                                 if ((tunnels_info[j].tunnel &
1376                                      dev_handle->layers) ==
1377                                     tunnels_info[j].tunnel) {
1378                                         rxq_ctrl->flow_tunnels_n[j]--;
1379                                         break;
1380                                 }
1381                         }
1382                         flow_rxq_tunnel_ptype_update(rxq_ctrl);
1383                 }
1384         }
1385 }
1386
1387 /**
1388  * Clear the Rx queue flags (Mark/Flag and Tunnel Ptype) associated with the
1389  * @p flow if no other flow uses it with the same kind of request.
1390  *
1391  * @param dev
1392  *   Pointer to Ethernet device.
1393  * @param[in] flow
1394  *   Pointer to the flow.
1395  */
1396 static void
1397 flow_rxq_flags_trim(struct rte_eth_dev *dev, struct rte_flow *flow)
1398 {
1399         struct mlx5_priv *priv = dev->data->dev_private;
1400         uint32_t handle_idx;
1401         struct mlx5_flow_handle *dev_handle;
1402
1403         SILIST_FOREACH(priv->sh->ipool[MLX5_IPOOL_MLX5_FLOW], flow->dev_handles,
1404                        handle_idx, dev_handle, next)
1405                 flow_drv_rxq_flags_trim(dev, dev_handle);
1406 }
1407
1408 /**
1409  * Clear the Mark/Flag and Tunnel ptype information in all Rx queues.
1410  *
1411  * @param dev
1412  *   Pointer to Ethernet device.
1413  */
1414 static void
1415 flow_rxq_flags_clear(struct rte_eth_dev *dev)
1416 {
1417         struct mlx5_priv *priv = dev->data->dev_private;
1418         unsigned int i;
1419
1420         for (i = 0; i != priv->rxqs_n; ++i) {
1421                 struct mlx5_rxq_priv *rxq = mlx5_rxq_get(dev, i);
1422                 unsigned int j;
1423
1424                 if (rxq == NULL || rxq->ctrl == NULL)
1425                         continue;
1426                 rxq->ctrl->rxq.mark = 0;
1427                 for (j = 0; j != MLX5_FLOW_TUNNEL; ++j)
1428                         rxq->ctrl->flow_tunnels_n[j] = 0;
1429                 rxq->ctrl->rxq.tunnel = 0;
1430         }
1431         priv->mark_enabled = 0;
1432 }
1433
1434 /**
1435  * Set the Rx queue dynamic metadata (mask and offset) for a flow
1436  *
1437  * @param[in] dev
1438  *   Pointer to the Ethernet device structure.
1439  */
1440 void
1441 mlx5_flow_rxq_dynf_metadata_set(struct rte_eth_dev *dev)
1442 {
1443         struct mlx5_priv *priv = dev->data->dev_private;
1444         unsigned int i;
1445
1446         for (i = 0; i != priv->rxqs_n; ++i) {
1447                 struct mlx5_rxq_priv *rxq = mlx5_rxq_get(dev, i);
1448                 struct mlx5_rxq_data *data;
1449
1450                 if (rxq == NULL || rxq->ctrl == NULL)
1451                         continue;
1452                 data = &rxq->ctrl->rxq;
1453                 if (!rte_flow_dynf_metadata_avail()) {
1454                         data->dynf_meta = 0;
1455                         data->flow_meta_mask = 0;
1456                         data->flow_meta_offset = -1;
1457                         data->flow_meta_port_mask = 0;
1458                 } else {
1459                         data->dynf_meta = 1;
1460                         data->flow_meta_mask = rte_flow_dynf_metadata_mask;
1461                         data->flow_meta_offset = rte_flow_dynf_metadata_offs;
1462                         data->flow_meta_port_mask = priv->sh->dv_meta_mask;
1463                 }
1464         }
1465 }
1466
1467 /*
1468  * return a pointer to the desired action in the list of actions.
1469  *
1470  * @param[in] actions
1471  *   The list of actions to search the action in.
1472  * @param[in] action
1473  *   The action to find.
1474  *
1475  * @return
1476  *   Pointer to the action in the list, if found. NULL otherwise.
1477  */
1478 const struct rte_flow_action *
1479 mlx5_flow_find_action(const struct rte_flow_action *actions,
1480                       enum rte_flow_action_type action)
1481 {
1482         if (actions == NULL)
1483                 return NULL;
1484         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++)
1485                 if (actions->type == action)
1486                         return actions;
1487         return NULL;
1488 }
1489
1490 /*
1491  * Validate the flag action.
1492  *
1493  * @param[in] action_flags
1494  *   Bit-fields that holds the actions detected until now.
1495  * @param[in] attr
1496  *   Attributes of flow that includes this action.
1497  * @param[out] error
1498  *   Pointer to error structure.
1499  *
1500  * @return
1501  *   0 on success, a negative errno value otherwise and rte_errno is set.
1502  */
1503 int
1504 mlx5_flow_validate_action_flag(uint64_t action_flags,
1505                                const struct rte_flow_attr *attr,
1506                                struct rte_flow_error *error)
1507 {
1508         if (action_flags & MLX5_FLOW_ACTION_MARK)
1509                 return rte_flow_error_set(error, EINVAL,
1510                                           RTE_FLOW_ERROR_TYPE_ACTION, NULL,
1511                                           "can't mark and flag in same flow");
1512         if (action_flags & MLX5_FLOW_ACTION_FLAG)
1513                 return rte_flow_error_set(error, EINVAL,
1514                                           RTE_FLOW_ERROR_TYPE_ACTION, NULL,
1515                                           "can't have 2 flag"
1516                                           " actions in same flow");
1517         if (attr->egress)
1518                 return rte_flow_error_set(error, ENOTSUP,
1519                                           RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1520                                           "flag action not supported for "
1521                                           "egress");
1522         return 0;
1523 }
1524
1525 /*
1526  * Validate the mark action.
1527  *
1528  * @param[in] action
1529  *   Pointer to the queue action.
1530  * @param[in] action_flags
1531  *   Bit-fields that holds the actions detected until now.
1532  * @param[in] attr
1533  *   Attributes of flow that includes this action.
1534  * @param[out] error
1535  *   Pointer to error structure.
1536  *
1537  * @return
1538  *   0 on success, a negative errno value otherwise and rte_errno is set.
1539  */
1540 int
1541 mlx5_flow_validate_action_mark(const struct rte_flow_action *action,
1542                                uint64_t action_flags,
1543                                const struct rte_flow_attr *attr,
1544                                struct rte_flow_error *error)
1545 {
1546         const struct rte_flow_action_mark *mark = action->conf;
1547
1548         if (!mark)
1549                 return rte_flow_error_set(error, EINVAL,
1550                                           RTE_FLOW_ERROR_TYPE_ACTION,
1551                                           action,
1552                                           "configuration cannot be null");
1553         if (mark->id >= MLX5_FLOW_MARK_MAX)
1554                 return rte_flow_error_set(error, EINVAL,
1555                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1556                                           &mark->id,
1557                                           "mark id must in 0 <= id < "
1558                                           RTE_STR(MLX5_FLOW_MARK_MAX));
1559         if (action_flags & MLX5_FLOW_ACTION_FLAG)
1560                 return rte_flow_error_set(error, EINVAL,
1561                                           RTE_FLOW_ERROR_TYPE_ACTION, NULL,
1562                                           "can't flag and mark in same flow");
1563         if (action_flags & MLX5_FLOW_ACTION_MARK)
1564                 return rte_flow_error_set(error, EINVAL,
1565                                           RTE_FLOW_ERROR_TYPE_ACTION, NULL,
1566                                           "can't have 2 mark actions in same"
1567                                           " flow");
1568         if (attr->egress)
1569                 return rte_flow_error_set(error, ENOTSUP,
1570                                           RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1571                                           "mark action not supported for "
1572                                           "egress");
1573         return 0;
1574 }
1575
1576 /*
1577  * Validate the drop action.
1578  *
1579  * @param[in] action_flags
1580  *   Bit-fields that holds the actions detected until now.
1581  * @param[in] attr
1582  *   Attributes of flow that includes this action.
1583  * @param[out] error
1584  *   Pointer to error structure.
1585  *
1586  * @return
1587  *   0 on success, a negative errno value otherwise and rte_errno is set.
1588  */
1589 int
1590 mlx5_flow_validate_action_drop(uint64_t action_flags __rte_unused,
1591                                const struct rte_flow_attr *attr,
1592                                struct rte_flow_error *error)
1593 {
1594         if (attr->egress)
1595                 return rte_flow_error_set(error, ENOTSUP,
1596                                           RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1597                                           "drop action not supported for "
1598                                           "egress");
1599         return 0;
1600 }
1601
1602 /*
1603  * Validate the queue action.
1604  *
1605  * @param[in] action
1606  *   Pointer to the queue action.
1607  * @param[in] action_flags
1608  *   Bit-fields that holds the actions detected until now.
1609  * @param[in] dev
1610  *   Pointer to the Ethernet device structure.
1611  * @param[in] attr
1612  *   Attributes of flow that includes this action.
1613  * @param[out] error
1614  *   Pointer to error structure.
1615  *
1616  * @return
1617  *   0 on success, a negative errno value otherwise and rte_errno is set.
1618  */
1619 int
1620 mlx5_flow_validate_action_queue(const struct rte_flow_action *action,
1621                                 uint64_t action_flags,
1622                                 struct rte_eth_dev *dev,
1623                                 const struct rte_flow_attr *attr,
1624                                 struct rte_flow_error *error)
1625 {
1626         struct mlx5_priv *priv = dev->data->dev_private;
1627         const struct rte_flow_action_queue *queue = action->conf;
1628
1629         if (action_flags & MLX5_FLOW_FATE_ACTIONS)
1630                 return rte_flow_error_set(error, EINVAL,
1631                                           RTE_FLOW_ERROR_TYPE_ACTION, NULL,
1632                                           "can't have 2 fate actions in"
1633                                           " same flow");
1634         if (!priv->rxqs_n)
1635                 return rte_flow_error_set(error, EINVAL,
1636                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1637                                           NULL, "No Rx queues configured");
1638         if (queue->index >= priv->rxqs_n)
1639                 return rte_flow_error_set(error, EINVAL,
1640                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1641                                           &queue->index,
1642                                           "queue index out of range");
1643         if (mlx5_rxq_get(dev, queue->index) == NULL)
1644                 return rte_flow_error_set(error, EINVAL,
1645                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1646                                           &queue->index,
1647                                           "queue is not configured");
1648         if (attr->egress)
1649                 return rte_flow_error_set(error, ENOTSUP,
1650                                           RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1651                                           "queue action not supported for "
1652                                           "egress");
1653         return 0;
1654 }
1655
1656 /**
1657  * Validate queue numbers for device RSS.
1658  *
1659  * @param[in] dev
1660  *   Configured device.
1661  * @param[in] queues
1662  *   Array of queue numbers.
1663  * @param[in] queues_n
1664  *   Size of the @p queues array.
1665  * @param[out] error
1666  *   On error, filled with a textual error description.
1667  * @param[out] queue
1668  *   On error, filled with an offending queue index in @p queues array.
1669  *
1670  * @return
1671  *   0 on success, a negative errno code on error.
1672  */
1673 static int
1674 mlx5_validate_rss_queues(struct rte_eth_dev *dev,
1675                          const uint16_t *queues, uint32_t queues_n,
1676                          const char **error, uint32_t *queue_idx)
1677 {
1678         const struct mlx5_priv *priv = dev->data->dev_private;
1679         enum mlx5_rxq_type rxq_type = MLX5_RXQ_TYPE_UNDEFINED;
1680         uint32_t i;
1681
1682         for (i = 0; i != queues_n; ++i) {
1683                 struct mlx5_rxq_ctrl *rxq_ctrl = mlx5_rxq_ctrl_get(dev,
1684                                                                    queues[i]);
1685
1686                 if (queues[i] >= priv->rxqs_n) {
1687                         *error = "queue index out of range";
1688                         *queue_idx = i;
1689                         return -EINVAL;
1690                 }
1691                 if (rxq_ctrl == NULL) {
1692                         *error =  "queue is not configured";
1693                         *queue_idx = i;
1694                         return -EINVAL;
1695                 }
1696                 if (i == 0)
1697                         rxq_type = rxq_ctrl->type;
1698                 if (rxq_type != rxq_ctrl->type) {
1699                         *error = "combining hairpin and regular RSS queues is not supported";
1700                         *queue_idx = i;
1701                         return -ENOTSUP;
1702                 }
1703         }
1704         return 0;
1705 }
1706
1707 /*
1708  * Validate the rss action.
1709  *
1710  * @param[in] dev
1711  *   Pointer to the Ethernet device structure.
1712  * @param[in] action
1713  *   Pointer to the queue action.
1714  * @param[out] error
1715  *   Pointer to error structure.
1716  *
1717  * @return
1718  *   0 on success, a negative errno value otherwise and rte_errno is set.
1719  */
1720 int
1721 mlx5_validate_action_rss(struct rte_eth_dev *dev,
1722                          const struct rte_flow_action *action,
1723                          struct rte_flow_error *error)
1724 {
1725         struct mlx5_priv *priv = dev->data->dev_private;
1726         const struct rte_flow_action_rss *rss = action->conf;
1727         int ret;
1728         const char *message;
1729         uint32_t queue_idx;
1730
1731         if (rss->func != RTE_ETH_HASH_FUNCTION_DEFAULT &&
1732             rss->func != RTE_ETH_HASH_FUNCTION_TOEPLITZ)
1733                 return rte_flow_error_set(error, ENOTSUP,
1734                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1735                                           &rss->func,
1736                                           "RSS hash function not supported");
1737 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
1738         if (rss->level > 2)
1739 #else
1740         if (rss->level > 1)
1741 #endif
1742                 return rte_flow_error_set(error, ENOTSUP,
1743                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1744                                           &rss->level,
1745                                           "tunnel RSS is not supported");
1746         /* allow RSS key_len 0 in case of NULL (default) RSS key. */
1747         if (rss->key_len == 0 && rss->key != NULL)
1748                 return rte_flow_error_set(error, ENOTSUP,
1749                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1750                                           &rss->key_len,
1751                                           "RSS hash key length 0");
1752         if (rss->key_len > 0 && rss->key_len < MLX5_RSS_HASH_KEY_LEN)
1753                 return rte_flow_error_set(error, ENOTSUP,
1754                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1755                                           &rss->key_len,
1756                                           "RSS hash key too small");
1757         if (rss->key_len > MLX5_RSS_HASH_KEY_LEN)
1758                 return rte_flow_error_set(error, ENOTSUP,
1759                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1760                                           &rss->key_len,
1761                                           "RSS hash key too large");
1762         if (rss->queue_num > priv->config.ind_table_max_size)
1763                 return rte_flow_error_set(error, ENOTSUP,
1764                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1765                                           &rss->queue_num,
1766                                           "number of queues too large");
1767         if (rss->types & MLX5_RSS_HF_MASK)
1768                 return rte_flow_error_set(error, ENOTSUP,
1769                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1770                                           &rss->types,
1771                                           "some RSS protocols are not"
1772                                           " supported");
1773         if ((rss->types & (RTE_ETH_RSS_L3_SRC_ONLY | RTE_ETH_RSS_L3_DST_ONLY)) &&
1774             !(rss->types & RTE_ETH_RSS_IP))
1775                 return rte_flow_error_set(error, EINVAL,
1776                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
1777                                           "L3 partial RSS requested but L3 RSS"
1778                                           " type not specified");
1779         if ((rss->types & (RTE_ETH_RSS_L4_SRC_ONLY | RTE_ETH_RSS_L4_DST_ONLY)) &&
1780             !(rss->types & (RTE_ETH_RSS_UDP | RTE_ETH_RSS_TCP)))
1781                 return rte_flow_error_set(error, EINVAL,
1782                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
1783                                           "L4 partial RSS requested but L4 RSS"
1784                                           " type not specified");
1785         if (!priv->rxqs_n)
1786                 return rte_flow_error_set(error, EINVAL,
1787                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1788                                           NULL, "No Rx queues configured");
1789         if (!rss->queue_num)
1790                 return rte_flow_error_set(error, EINVAL,
1791                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1792                                           NULL, "No queues configured");
1793         ret = mlx5_validate_rss_queues(dev, rss->queue, rss->queue_num,
1794                                        &message, &queue_idx);
1795         if (ret != 0) {
1796                 return rte_flow_error_set(error, -ret,
1797                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1798                                           &rss->queue[queue_idx], message);
1799         }
1800         return 0;
1801 }
1802
1803 /*
1804  * Validate the rss action.
1805  *
1806  * @param[in] action
1807  *   Pointer to the queue action.
1808  * @param[in] action_flags
1809  *   Bit-fields that holds the actions detected until now.
1810  * @param[in] dev
1811  *   Pointer to the Ethernet device structure.
1812  * @param[in] attr
1813  *   Attributes of flow that includes this action.
1814  * @param[in] item_flags
1815  *   Items that were detected.
1816  * @param[out] error
1817  *   Pointer to error structure.
1818  *
1819  * @return
1820  *   0 on success, a negative errno value otherwise and rte_errno is set.
1821  */
1822 int
1823 mlx5_flow_validate_action_rss(const struct rte_flow_action *action,
1824                               uint64_t action_flags,
1825                               struct rte_eth_dev *dev,
1826                               const struct rte_flow_attr *attr,
1827                               uint64_t item_flags,
1828                               struct rte_flow_error *error)
1829 {
1830         const struct rte_flow_action_rss *rss = action->conf;
1831         int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1832         int ret;
1833
1834         if (action_flags & MLX5_FLOW_FATE_ACTIONS)
1835                 return rte_flow_error_set(error, EINVAL,
1836                                           RTE_FLOW_ERROR_TYPE_ACTION, NULL,
1837                                           "can't have 2 fate actions"
1838                                           " in same flow");
1839         ret = mlx5_validate_action_rss(dev, action, error);
1840         if (ret)
1841                 return ret;
1842         if (attr->egress)
1843                 return rte_flow_error_set(error, ENOTSUP,
1844                                           RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1845                                           "rss action not supported for "
1846                                           "egress");
1847         if (rss->level > 1 && !tunnel)
1848                 return rte_flow_error_set(error, EINVAL,
1849                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
1850                                           "inner RSS is not supported for "
1851                                           "non-tunnel flows");
1852         if ((item_flags & MLX5_FLOW_LAYER_ECPRI) &&
1853             !(item_flags & MLX5_FLOW_LAYER_INNER_L4_UDP)) {
1854                 return rte_flow_error_set(error, EINVAL,
1855                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
1856                                           "RSS on eCPRI is not supported now");
1857         }
1858         if ((item_flags & MLX5_FLOW_LAYER_MPLS) &&
1859             !(item_flags &
1860               (MLX5_FLOW_LAYER_INNER_L2 | MLX5_FLOW_LAYER_INNER_L3)) &&
1861             rss->level > 1)
1862                 return rte_flow_error_set(error, EINVAL,
1863                                           RTE_FLOW_ERROR_TYPE_ITEM, NULL,
1864                                           "MPLS inner RSS needs to specify inner L2/L3 items after MPLS in pattern");
1865         return 0;
1866 }
1867
1868 /*
1869  * Validate the default miss action.
1870  *
1871  * @param[in] action_flags
1872  *   Bit-fields that holds the actions detected until now.
1873  * @param[out] error
1874  *   Pointer to error structure.
1875  *
1876  * @return
1877  *   0 on success, a negative errno value otherwise and rte_errno is set.
1878  */
1879 int
1880 mlx5_flow_validate_action_default_miss(uint64_t action_flags,
1881                                 const struct rte_flow_attr *attr,
1882                                 struct rte_flow_error *error)
1883 {
1884         if (action_flags & MLX5_FLOW_FATE_ACTIONS)
1885                 return rte_flow_error_set(error, EINVAL,
1886                                           RTE_FLOW_ERROR_TYPE_ACTION, NULL,
1887                                           "can't have 2 fate actions in"
1888                                           " same flow");
1889         if (attr->egress)
1890                 return rte_flow_error_set(error, ENOTSUP,
1891                                           RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1892                                           "default miss action not supported "
1893                                           "for egress");
1894         if (attr->group)
1895                 return rte_flow_error_set(error, ENOTSUP,
1896                                           RTE_FLOW_ERROR_TYPE_ATTR_GROUP, NULL,
1897                                           "only group 0 is supported");
1898         if (attr->transfer)
1899                 return rte_flow_error_set(error, ENOTSUP,
1900                                           RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER,
1901                                           NULL, "transfer is not supported");
1902         return 0;
1903 }
1904
1905 /*
1906  * Validate the count action.
1907  *
1908  * @param[in] dev
1909  *   Pointer to the Ethernet device structure.
1910  * @param[in] attr
1911  *   Attributes of flow that includes this action.
1912  * @param[out] error
1913  *   Pointer to error structure.
1914  *
1915  * @return
1916  *   0 on success, a negative errno value otherwise and rte_errno is set.
1917  */
1918 int
1919 mlx5_flow_validate_action_count(struct rte_eth_dev *dev __rte_unused,
1920                                 const struct rte_flow_attr *attr,
1921                                 struct rte_flow_error *error)
1922 {
1923         if (attr->egress)
1924                 return rte_flow_error_set(error, ENOTSUP,
1925                                           RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1926                                           "count action not supported for "
1927                                           "egress");
1928         return 0;
1929 }
1930
1931 /*
1932  * Validate the ASO CT action.
1933  *
1934  * @param[in] dev
1935  *   Pointer to the Ethernet device structure.
1936  * @param[in] conntrack
1937  *   Pointer to the CT action profile.
1938  * @param[out] error
1939  *   Pointer to error structure.
1940  *
1941  * @return
1942  *   0 on success, a negative errno value otherwise and rte_errno is set.
1943  */
1944 int
1945 mlx5_validate_action_ct(struct rte_eth_dev *dev,
1946                         const struct rte_flow_action_conntrack *conntrack,
1947                         struct rte_flow_error *error)
1948 {
1949         RTE_SET_USED(dev);
1950
1951         if (conntrack->state > RTE_FLOW_CONNTRACK_STATE_TIME_WAIT)
1952                 return rte_flow_error_set(error, EINVAL,
1953                                           RTE_FLOW_ERROR_TYPE_ACTION, NULL,
1954                                           "Invalid CT state");
1955         if (conntrack->last_index > RTE_FLOW_CONNTRACK_FLAG_RST)
1956                 return rte_flow_error_set(error, EINVAL,
1957                                           RTE_FLOW_ERROR_TYPE_ACTION, NULL,
1958                                           "Invalid last TCP packet flag");
1959         return 0;
1960 }
1961
1962 /**
1963  * Verify the @p attributes will be correctly understood by the NIC and store
1964  * them in the @p flow if everything is correct.
1965  *
1966  * @param[in] dev
1967  *   Pointer to the Ethernet device structure.
1968  * @param[in] attributes
1969  *   Pointer to flow attributes
1970  * @param[out] error
1971  *   Pointer to error structure.
1972  *
1973  * @return
1974  *   0 on success, a negative errno value otherwise and rte_errno is set.
1975  */
1976 int
1977 mlx5_flow_validate_attributes(struct rte_eth_dev *dev,
1978                               const struct rte_flow_attr *attributes,
1979                               struct rte_flow_error *error)
1980 {
1981         struct mlx5_priv *priv = dev->data->dev_private;
1982         uint32_t priority_max = priv->sh->flow_max_priority - 1;
1983
1984         if (attributes->group)
1985                 return rte_flow_error_set(error, ENOTSUP,
1986                                           RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
1987                                           NULL, "groups is not supported");
1988         if (attributes->priority != MLX5_FLOW_LOWEST_PRIO_INDICATOR &&
1989             attributes->priority >= priority_max)
1990                 return rte_flow_error_set(error, ENOTSUP,
1991                                           RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
1992                                           NULL, "priority out of range");
1993         if (attributes->egress)
1994                 return rte_flow_error_set(error, ENOTSUP,
1995                                           RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1996                                           "egress is not supported");
1997         if (attributes->transfer && !priv->config.dv_esw_en)
1998                 return rte_flow_error_set(error, ENOTSUP,
1999                                           RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER,
2000                                           NULL, "transfer is not supported");
2001         if (!attributes->ingress)
2002                 return rte_flow_error_set(error, EINVAL,
2003                                           RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
2004                                           NULL,
2005                                           "ingress attribute is mandatory");
2006         return 0;
2007 }
2008
2009 /**
2010  * Validate ICMP6 item.
2011  *
2012  * @param[in] item
2013  *   Item specification.
2014  * @param[in] item_flags
2015  *   Bit-fields that holds the items detected until now.
2016  * @param[in] ext_vlan_sup
2017  *   Whether extended VLAN features are supported or not.
2018  * @param[out] error
2019  *   Pointer to error structure.
2020  *
2021  * @return
2022  *   0 on success, a negative errno value otherwise and rte_errno is set.
2023  */
2024 int
2025 mlx5_flow_validate_item_icmp6(const struct rte_flow_item *item,
2026                                uint64_t item_flags,
2027                                uint8_t target_protocol,
2028                                struct rte_flow_error *error)
2029 {
2030         const struct rte_flow_item_icmp6 *mask = item->mask;
2031         const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
2032         const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV6 :
2033                                       MLX5_FLOW_LAYER_OUTER_L3_IPV6;
2034         const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
2035                                       MLX5_FLOW_LAYER_OUTER_L4;
2036         int ret;
2037
2038         if (target_protocol != 0xFF && target_protocol != IPPROTO_ICMPV6)
2039                 return rte_flow_error_set(error, EINVAL,
2040                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2041                                           "protocol filtering not compatible"
2042                                           " with ICMP6 layer");
2043         if (!(item_flags & l3m))
2044                 return rte_flow_error_set(error, EINVAL,
2045                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2046                                           "IPv6 is mandatory to filter on"
2047                                           " ICMP6");
2048         if (item_flags & l4m)
2049                 return rte_flow_error_set(error, EINVAL,
2050                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2051                                           "multiple L4 layers not supported");
2052         if (!mask)
2053                 mask = &rte_flow_item_icmp6_mask;
2054         ret = mlx5_flow_item_acceptable
2055                 (item, (const uint8_t *)mask,
2056                  (const uint8_t *)&rte_flow_item_icmp6_mask,
2057                  sizeof(struct rte_flow_item_icmp6),
2058                  MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
2059         if (ret < 0)
2060                 return ret;
2061         return 0;
2062 }
2063
2064 /**
2065  * Validate ICMP item.
2066  *
2067  * @param[in] item
2068  *   Item specification.
2069  * @param[in] item_flags
2070  *   Bit-fields that holds the items detected until now.
2071  * @param[out] error
2072  *   Pointer to error structure.
2073  *
2074  * @return
2075  *   0 on success, a negative errno value otherwise and rte_errno is set.
2076  */
2077 int
2078 mlx5_flow_validate_item_icmp(const struct rte_flow_item *item,
2079                              uint64_t item_flags,
2080                              uint8_t target_protocol,
2081                              struct rte_flow_error *error)
2082 {
2083         const struct rte_flow_item_icmp *mask = item->mask;
2084         const struct rte_flow_item_icmp nic_mask = {
2085                 .hdr.icmp_type = 0xff,
2086                 .hdr.icmp_code = 0xff,
2087                 .hdr.icmp_ident = RTE_BE16(0xffff),
2088                 .hdr.icmp_seq_nb = RTE_BE16(0xffff),
2089         };
2090         const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
2091         const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV4 :
2092                                       MLX5_FLOW_LAYER_OUTER_L3_IPV4;
2093         const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
2094                                       MLX5_FLOW_LAYER_OUTER_L4;
2095         int ret;
2096
2097         if (target_protocol != 0xFF && target_protocol != IPPROTO_ICMP)
2098                 return rte_flow_error_set(error, EINVAL,
2099                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2100                                           "protocol filtering not compatible"
2101                                           " with ICMP layer");
2102         if (!(item_flags & l3m))
2103                 return rte_flow_error_set(error, EINVAL,
2104                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2105                                           "IPv4 is mandatory to filter"
2106                                           " on ICMP");
2107         if (item_flags & l4m)
2108                 return rte_flow_error_set(error, EINVAL,
2109                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2110                                           "multiple L4 layers not supported");
2111         if (!mask)
2112                 mask = &nic_mask;
2113         ret = mlx5_flow_item_acceptable
2114                 (item, (const uint8_t *)mask,
2115                  (const uint8_t *)&nic_mask,
2116                  sizeof(struct rte_flow_item_icmp),
2117                  MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
2118         if (ret < 0)
2119                 return ret;
2120         return 0;
2121 }
2122
2123 /**
2124  * Validate Ethernet item.
2125  *
2126  * @param[in] item
2127  *   Item specification.
2128  * @param[in] item_flags
2129  *   Bit-fields that holds the items detected until now.
2130  * @param[out] error
2131  *   Pointer to error structure.
2132  *
2133  * @return
2134  *   0 on success, a negative errno value otherwise and rte_errno is set.
2135  */
2136 int
2137 mlx5_flow_validate_item_eth(const struct rte_flow_item *item,
2138                             uint64_t item_flags, bool ext_vlan_sup,
2139                             struct rte_flow_error *error)
2140 {
2141         const struct rte_flow_item_eth *mask = item->mask;
2142         const struct rte_flow_item_eth nic_mask = {
2143                 .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
2144                 .src.addr_bytes = "\xff\xff\xff\xff\xff\xff",
2145                 .type = RTE_BE16(0xffff),
2146                 .has_vlan = ext_vlan_sup ? 1 : 0,
2147         };
2148         int ret;
2149         int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
2150         const uint64_t ethm = tunnel ? MLX5_FLOW_LAYER_INNER_L2 :
2151                                        MLX5_FLOW_LAYER_OUTER_L2;
2152
2153         if (item_flags & ethm)
2154                 return rte_flow_error_set(error, ENOTSUP,
2155                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2156                                           "multiple L2 layers not supported");
2157         if ((!tunnel && (item_flags & MLX5_FLOW_LAYER_OUTER_L3)) ||
2158             (tunnel && (item_flags & MLX5_FLOW_LAYER_INNER_L3)))
2159                 return rte_flow_error_set(error, EINVAL,
2160                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2161                                           "L2 layer should not follow "
2162                                           "L3 layers");
2163         if ((!tunnel && (item_flags & MLX5_FLOW_LAYER_OUTER_VLAN)) ||
2164             (tunnel && (item_flags & MLX5_FLOW_LAYER_INNER_VLAN)))
2165                 return rte_flow_error_set(error, EINVAL,
2166                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2167                                           "L2 layer should not follow VLAN");
2168         if (item_flags & MLX5_FLOW_LAYER_GTP)
2169                 return rte_flow_error_set(error, EINVAL,
2170                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2171                                           "L2 layer should not follow GTP");
2172         if (!mask)
2173                 mask = &rte_flow_item_eth_mask;
2174         ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
2175                                         (const uint8_t *)&nic_mask,
2176                                         sizeof(struct rte_flow_item_eth),
2177                                         MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
2178         return ret;
2179 }
2180
2181 /**
2182  * Validate VLAN item.
2183  *
2184  * @param[in] item
2185  *   Item specification.
2186  * @param[in] item_flags
2187  *   Bit-fields that holds the items detected until now.
2188  * @param[in] dev
2189  *   Ethernet device flow is being created on.
2190  * @param[out] error
2191  *   Pointer to error structure.
2192  *
2193  * @return
2194  *   0 on success, a negative errno value otherwise and rte_errno is set.
2195  */
2196 int
2197 mlx5_flow_validate_item_vlan(const struct rte_flow_item *item,
2198                              uint64_t item_flags,
2199                              struct rte_eth_dev *dev,
2200                              struct rte_flow_error *error)
2201 {
2202         const struct rte_flow_item_vlan *spec = item->spec;
2203         const struct rte_flow_item_vlan *mask = item->mask;
2204         const struct rte_flow_item_vlan nic_mask = {
2205                 .tci = RTE_BE16(UINT16_MAX),
2206                 .inner_type = RTE_BE16(UINT16_MAX),
2207         };
2208         uint16_t vlan_tag = 0;
2209         const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
2210         int ret;
2211         const uint64_t l34m = tunnel ? (MLX5_FLOW_LAYER_INNER_L3 |
2212                                         MLX5_FLOW_LAYER_INNER_L4) :
2213                                        (MLX5_FLOW_LAYER_OUTER_L3 |
2214                                         MLX5_FLOW_LAYER_OUTER_L4);
2215         const uint64_t vlanm = tunnel ? MLX5_FLOW_LAYER_INNER_VLAN :
2216                                         MLX5_FLOW_LAYER_OUTER_VLAN;
2217
2218         if (item_flags & vlanm)
2219                 return rte_flow_error_set(error, EINVAL,
2220                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2221                                           "multiple VLAN layers not supported");
2222         else if ((item_flags & l34m) != 0)
2223                 return rte_flow_error_set(error, EINVAL,
2224                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2225                                           "VLAN cannot follow L3/L4 layer");
2226         if (!mask)
2227                 mask = &rte_flow_item_vlan_mask;
2228         ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
2229                                         (const uint8_t *)&nic_mask,
2230                                         sizeof(struct rte_flow_item_vlan),
2231                                         MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
2232         if (ret)
2233                 return ret;
2234         if (!tunnel && mask->tci != RTE_BE16(0x0fff)) {
2235                 struct mlx5_priv *priv = dev->data->dev_private;
2236
2237                 if (priv->vmwa_context) {
2238                         /*
2239                          * Non-NULL context means we have a virtual machine
2240                          * and SR-IOV enabled, we have to create VLAN interface
2241                          * to make hypervisor to setup E-Switch vport
2242                          * context correctly. We avoid creating the multiple
2243                          * VLAN interfaces, so we cannot support VLAN tag mask.
2244                          */
2245                         return rte_flow_error_set(error, EINVAL,
2246                                                   RTE_FLOW_ERROR_TYPE_ITEM,
2247                                                   item,
2248                                                   "VLAN tag mask is not"
2249                                                   " supported in virtual"
2250                                                   " environment");
2251                 }
2252         }
2253         if (spec) {
2254                 vlan_tag = spec->tci;
2255                 vlan_tag &= mask->tci;
2256         }
2257         /*
2258          * From verbs perspective an empty VLAN is equivalent
2259          * to a packet without VLAN layer.
2260          */
2261         if (!vlan_tag)
2262                 return rte_flow_error_set(error, EINVAL,
2263                                           RTE_FLOW_ERROR_TYPE_ITEM_SPEC,
2264                                           item->spec,
2265                                           "VLAN cannot be empty");
2266         return 0;
2267 }
2268
2269 /**
2270  * Validate IPV4 item.
2271  *
2272  * @param[in] item
2273  *   Item specification.
2274  * @param[in] item_flags
2275  *   Bit-fields that holds the items detected until now.
2276  * @param[in] last_item
2277  *   Previous validated item in the pattern items.
2278  * @param[in] ether_type
2279  *   Type in the ethernet layer header (including dot1q).
2280  * @param[in] acc_mask
2281  *   Acceptable mask, if NULL default internal default mask
2282  *   will be used to check whether item fields are supported.
2283  * @param[in] range_accepted
2284  *   True if range of values is accepted for specific fields, false otherwise.
2285  * @param[out] error
2286  *   Pointer to error structure.
2287  *
2288  * @return
2289  *   0 on success, a negative errno value otherwise and rte_errno is set.
2290  */
2291 int
2292 mlx5_flow_validate_item_ipv4(const struct rte_flow_item *item,
2293                              uint64_t item_flags,
2294                              uint64_t last_item,
2295                              uint16_t ether_type,
2296                              const struct rte_flow_item_ipv4 *acc_mask,
2297                              bool range_accepted,
2298                              struct rte_flow_error *error)
2299 {
2300         const struct rte_flow_item_ipv4 *mask = item->mask;
2301         const struct rte_flow_item_ipv4 *spec = item->spec;
2302         const struct rte_flow_item_ipv4 nic_mask = {
2303                 .hdr = {
2304                         .src_addr = RTE_BE32(0xffffffff),
2305                         .dst_addr = RTE_BE32(0xffffffff),
2306                         .type_of_service = 0xff,
2307                         .next_proto_id = 0xff,
2308                 },
2309         };
2310         const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
2311         const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
2312                                       MLX5_FLOW_LAYER_OUTER_L3;
2313         const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
2314                                       MLX5_FLOW_LAYER_OUTER_L4;
2315         int ret;
2316         uint8_t next_proto = 0xFF;
2317         const uint64_t l2_vlan = (MLX5_FLOW_LAYER_L2 |
2318                                   MLX5_FLOW_LAYER_OUTER_VLAN |
2319                                   MLX5_FLOW_LAYER_INNER_VLAN);
2320
2321         if ((last_item & l2_vlan) && ether_type &&
2322             ether_type != RTE_ETHER_TYPE_IPV4)
2323                 return rte_flow_error_set(error, EINVAL,
2324                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2325                                           "IPv4 cannot follow L2/VLAN layer "
2326                                           "which ether type is not IPv4");
2327         if (item_flags & MLX5_FLOW_LAYER_TUNNEL) {
2328                 if (mask && spec)
2329                         next_proto = mask->hdr.next_proto_id &
2330                                      spec->hdr.next_proto_id;
2331                 if (next_proto == IPPROTO_IPIP || next_proto == IPPROTO_IPV6)
2332                         return rte_flow_error_set(error, EINVAL,
2333                                                   RTE_FLOW_ERROR_TYPE_ITEM,
2334                                                   item,
2335                                                   "multiple tunnel "
2336                                                   "not supported");
2337         }
2338         if (item_flags & MLX5_FLOW_LAYER_IPV6_ENCAP)
2339                 return rte_flow_error_set(error, EINVAL,
2340                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2341                                           "wrong tunnel type - IPv6 specified "
2342                                           "but IPv4 item provided");
2343         if (item_flags & l3m)
2344                 return rte_flow_error_set(error, ENOTSUP,
2345                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2346                                           "multiple L3 layers not supported");
2347         else if (item_flags & l4m)
2348                 return rte_flow_error_set(error, EINVAL,
2349                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2350                                           "L3 cannot follow an L4 layer.");
2351         else if ((item_flags & MLX5_FLOW_LAYER_NVGRE) &&
2352                   !(item_flags & MLX5_FLOW_LAYER_INNER_L2))
2353                 return rte_flow_error_set(error, EINVAL,
2354                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2355                                           "L3 cannot follow an NVGRE layer.");
2356         if (!mask)
2357                 mask = &rte_flow_item_ipv4_mask;
2358         else if (mask->hdr.next_proto_id != 0 &&
2359                  mask->hdr.next_proto_id != 0xff)
2360                 return rte_flow_error_set(error, EINVAL,
2361                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
2362                                           "partial mask is not supported"
2363                                           " for protocol");
2364         ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
2365                                         acc_mask ? (const uint8_t *)acc_mask
2366                                                  : (const uint8_t *)&nic_mask,
2367                                         sizeof(struct rte_flow_item_ipv4),
2368                                         range_accepted, error);
2369         if (ret < 0)
2370                 return ret;
2371         return 0;
2372 }
2373
2374 /**
2375  * Validate IPV6 item.
2376  *
2377  * @param[in] item
2378  *   Item specification.
2379  * @param[in] item_flags
2380  *   Bit-fields that holds the items detected until now.
2381  * @param[in] last_item
2382  *   Previous validated item in the pattern items.
2383  * @param[in] ether_type
2384  *   Type in the ethernet layer header (including dot1q).
2385  * @param[in] acc_mask
2386  *   Acceptable mask, if NULL default internal default mask
2387  *   will be used to check whether item fields are supported.
2388  * @param[out] error
2389  *   Pointer to error structure.
2390  *
2391  * @return
2392  *   0 on success, a negative errno value otherwise and rte_errno is set.
2393  */
2394 int
2395 mlx5_flow_validate_item_ipv6(const struct rte_flow_item *item,
2396                              uint64_t item_flags,
2397                              uint64_t last_item,
2398                              uint16_t ether_type,
2399                              const struct rte_flow_item_ipv6 *acc_mask,
2400                              struct rte_flow_error *error)
2401 {
2402         const struct rte_flow_item_ipv6 *mask = item->mask;
2403         const struct rte_flow_item_ipv6 *spec = item->spec;
2404         const struct rte_flow_item_ipv6 nic_mask = {
2405                 .hdr = {
2406                         .src_addr =
2407                                 "\xff\xff\xff\xff\xff\xff\xff\xff"
2408                                 "\xff\xff\xff\xff\xff\xff\xff\xff",
2409                         .dst_addr =
2410                                 "\xff\xff\xff\xff\xff\xff\xff\xff"
2411                                 "\xff\xff\xff\xff\xff\xff\xff\xff",
2412                         .vtc_flow = RTE_BE32(0xffffffff),
2413                         .proto = 0xff,
2414                 },
2415         };
2416         const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
2417         const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
2418                                       MLX5_FLOW_LAYER_OUTER_L3;
2419         const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
2420                                       MLX5_FLOW_LAYER_OUTER_L4;
2421         int ret;
2422         uint8_t next_proto = 0xFF;
2423         const uint64_t l2_vlan = (MLX5_FLOW_LAYER_L2 |
2424                                   MLX5_FLOW_LAYER_OUTER_VLAN |
2425                                   MLX5_FLOW_LAYER_INNER_VLAN);
2426
2427         if ((last_item & l2_vlan) && ether_type &&
2428             ether_type != RTE_ETHER_TYPE_IPV6)
2429                 return rte_flow_error_set(error, EINVAL,
2430                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2431                                           "IPv6 cannot follow L2/VLAN layer "
2432                                           "which ether type is not IPv6");
2433         if (mask && mask->hdr.proto == UINT8_MAX && spec)
2434                 next_proto = spec->hdr.proto;
2435         if (item_flags & MLX5_FLOW_LAYER_TUNNEL) {
2436                 if (next_proto == IPPROTO_IPIP || next_proto == IPPROTO_IPV6)
2437                         return rte_flow_error_set(error, EINVAL,
2438                                                   RTE_FLOW_ERROR_TYPE_ITEM,
2439                                                   item,
2440                                                   "multiple tunnel "
2441                                                   "not supported");
2442         }
2443         if (next_proto == IPPROTO_HOPOPTS  ||
2444             next_proto == IPPROTO_ROUTING  ||
2445             next_proto == IPPROTO_FRAGMENT ||
2446             next_proto == IPPROTO_ESP      ||
2447             next_proto == IPPROTO_AH       ||
2448             next_proto == IPPROTO_DSTOPTS)
2449                 return rte_flow_error_set(error, EINVAL,
2450                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2451                                           "IPv6 proto (next header) should "
2452                                           "not be set as extension header");
2453         if (item_flags & MLX5_FLOW_LAYER_IPIP)
2454                 return rte_flow_error_set(error, EINVAL,
2455                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2456                                           "wrong tunnel type - IPv4 specified "
2457                                           "but IPv6 item provided");
2458         if (item_flags & l3m)
2459                 return rte_flow_error_set(error, ENOTSUP,
2460                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2461                                           "multiple L3 layers not supported");
2462         else if (item_flags & l4m)
2463                 return rte_flow_error_set(error, EINVAL,
2464                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2465                                           "L3 cannot follow an L4 layer.");
2466         else if ((item_flags & MLX5_FLOW_LAYER_NVGRE) &&
2467                   !(item_flags & MLX5_FLOW_LAYER_INNER_L2))
2468                 return rte_flow_error_set(error, EINVAL,
2469                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2470                                           "L3 cannot follow an NVGRE layer.");
2471         if (!mask)
2472                 mask = &rte_flow_item_ipv6_mask;
2473         ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
2474                                         acc_mask ? (const uint8_t *)acc_mask
2475                                                  : (const uint8_t *)&nic_mask,
2476                                         sizeof(struct rte_flow_item_ipv6),
2477                                         MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
2478         if (ret < 0)
2479                 return ret;
2480         return 0;
2481 }
2482
2483 /**
2484  * Validate UDP item.
2485  *
2486  * @param[in] item
2487  *   Item specification.
2488  * @param[in] item_flags
2489  *   Bit-fields that holds the items detected until now.
2490  * @param[in] target_protocol
2491  *   The next protocol in the previous item.
2492  * @param[in] flow_mask
2493  *   mlx5 flow-specific (DV, verbs, etc.) supported header fields mask.
2494  * @param[out] error
2495  *   Pointer to error structure.
2496  *
2497  * @return
2498  *   0 on success, a negative errno value otherwise and rte_errno is set.
2499  */
2500 int
2501 mlx5_flow_validate_item_udp(const struct rte_flow_item *item,
2502                             uint64_t item_flags,
2503                             uint8_t target_protocol,
2504                             struct rte_flow_error *error)
2505 {
2506         const struct rte_flow_item_udp *mask = item->mask;
2507         const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
2508         const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
2509                                       MLX5_FLOW_LAYER_OUTER_L3;
2510         const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
2511                                       MLX5_FLOW_LAYER_OUTER_L4;
2512         int ret;
2513
2514         if (target_protocol != 0xff && target_protocol != IPPROTO_UDP)
2515                 return rte_flow_error_set(error, EINVAL,
2516                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2517                                           "protocol filtering not compatible"
2518                                           " with UDP layer");
2519         if (!(item_flags & l3m))
2520                 return rte_flow_error_set(error, EINVAL,
2521                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2522                                           "L3 is mandatory to filter on L4");
2523         if (item_flags & l4m)
2524                 return rte_flow_error_set(error, EINVAL,
2525                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2526                                           "multiple L4 layers not supported");
2527         if (!mask)
2528                 mask = &rte_flow_item_udp_mask;
2529         ret = mlx5_flow_item_acceptable
2530                 (item, (const uint8_t *)mask,
2531                  (const uint8_t *)&rte_flow_item_udp_mask,
2532                  sizeof(struct rte_flow_item_udp), MLX5_ITEM_RANGE_NOT_ACCEPTED,
2533                  error);
2534         if (ret < 0)
2535                 return ret;
2536         return 0;
2537 }
2538
2539 /**
2540  * Validate TCP item.
2541  *
2542  * @param[in] item
2543  *   Item specification.
2544  * @param[in] item_flags
2545  *   Bit-fields that holds the items detected until now.
2546  * @param[in] target_protocol
2547  *   The next protocol in the previous item.
2548  * @param[out] error
2549  *   Pointer to error structure.
2550  *
2551  * @return
2552  *   0 on success, a negative errno value otherwise and rte_errno is set.
2553  */
2554 int
2555 mlx5_flow_validate_item_tcp(const struct rte_flow_item *item,
2556                             uint64_t item_flags,
2557                             uint8_t target_protocol,
2558                             const struct rte_flow_item_tcp *flow_mask,
2559                             struct rte_flow_error *error)
2560 {
2561         const struct rte_flow_item_tcp *mask = item->mask;
2562         const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
2563         const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
2564                                       MLX5_FLOW_LAYER_OUTER_L3;
2565         const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
2566                                       MLX5_FLOW_LAYER_OUTER_L4;
2567         int ret;
2568
2569         MLX5_ASSERT(flow_mask);
2570         if (target_protocol != 0xff && target_protocol != IPPROTO_TCP)
2571                 return rte_flow_error_set(error, EINVAL,
2572                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2573                                           "protocol filtering not compatible"
2574                                           " with TCP layer");
2575         if (!(item_flags & l3m))
2576                 return rte_flow_error_set(error, EINVAL,
2577                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2578                                           "L3 is mandatory to filter on L4");
2579         if (item_flags & l4m)
2580                 return rte_flow_error_set(error, EINVAL,
2581                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2582                                           "multiple L4 layers not supported");
2583         if (!mask)
2584                 mask = &rte_flow_item_tcp_mask;
2585         ret = mlx5_flow_item_acceptable
2586                 (item, (const uint8_t *)mask,
2587                  (const uint8_t *)flow_mask,
2588                  sizeof(struct rte_flow_item_tcp), MLX5_ITEM_RANGE_NOT_ACCEPTED,
2589                  error);
2590         if (ret < 0)
2591                 return ret;
2592         return 0;
2593 }
2594
2595 /**
2596  * Validate VXLAN item.
2597  *
2598  * @param[in] dev
2599  *   Pointer to the Ethernet device structure.
2600  * @param[in] udp_dport
2601  *   UDP destination port
2602  * @param[in] item
2603  *   Item specification.
2604  * @param[in] item_flags
2605  *   Bit-fields that holds the items detected until now.
2606  * @param[in] attr
2607  *   Flow rule attributes.
2608  * @param[out] error
2609  *   Pointer to error structure.
2610  *
2611  * @return
2612  *   0 on success, a negative errno value otherwise and rte_errno is set.
2613  */
2614 int
2615 mlx5_flow_validate_item_vxlan(struct rte_eth_dev *dev,
2616                               uint16_t udp_dport,
2617                               const struct rte_flow_item *item,
2618                               uint64_t item_flags,
2619                               const struct rte_flow_attr *attr,
2620                               struct rte_flow_error *error)
2621 {
2622         const struct rte_flow_item_vxlan *spec = item->spec;
2623         const struct rte_flow_item_vxlan *mask = item->mask;
2624         int ret;
2625         struct mlx5_priv *priv = dev->data->dev_private;
2626         union vni {
2627                 uint32_t vlan_id;
2628                 uint8_t vni[4];
2629         } id = { .vlan_id = 0, };
2630         const struct rte_flow_item_vxlan nic_mask = {
2631                 .vni = "\xff\xff\xff",
2632                 .rsvd1 = 0xff,
2633         };
2634         const struct rte_flow_item_vxlan *valid_mask;
2635
2636         if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
2637                 return rte_flow_error_set(error, ENOTSUP,
2638                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2639                                           "multiple tunnel layers not"
2640                                           " supported");
2641         valid_mask = &rte_flow_item_vxlan_mask;
2642         /*
2643          * Verify only UDPv4 is present as defined in
2644          * https://tools.ietf.org/html/rfc7348
2645          */
2646         if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP))
2647                 return rte_flow_error_set(error, EINVAL,
2648                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2649                                           "no outer UDP layer found");
2650         if (!mask)
2651                 mask = &rte_flow_item_vxlan_mask;
2652
2653         if (priv->sh->steering_format_version !=
2654             MLX5_STEERING_LOGIC_FORMAT_CONNECTX_5 ||
2655             !udp_dport || udp_dport == MLX5_UDP_PORT_VXLAN) {
2656                 /* FDB domain & NIC domain non-zero group */
2657                 if ((attr->transfer || attr->group) && priv->sh->misc5_cap)
2658                         valid_mask = &nic_mask;
2659                 /* Group zero in NIC domain */
2660                 if (!attr->group && !attr->transfer &&
2661                     priv->sh->tunnel_header_0_1)
2662                         valid_mask = &nic_mask;
2663         }
2664         ret = mlx5_flow_item_acceptable
2665                 (item, (const uint8_t *)mask,
2666                  (const uint8_t *)valid_mask,
2667                  sizeof(struct rte_flow_item_vxlan),
2668                  MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
2669         if (ret < 0)
2670                 return ret;
2671         if (spec) {
2672                 memcpy(&id.vni[1], spec->vni, 3);
2673                 memcpy(&id.vni[1], mask->vni, 3);
2674         }
2675         if (!(item_flags & MLX5_FLOW_LAYER_OUTER))
2676                 return rte_flow_error_set(error, ENOTSUP,
2677                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2678                                           "VXLAN tunnel must be fully defined");
2679         return 0;
2680 }
2681
2682 /**
2683  * Validate VXLAN_GPE item.
2684  *
2685  * @param[in] item
2686  *   Item specification.
2687  * @param[in] item_flags
2688  *   Bit-fields that holds the items detected until now.
2689  * @param[in] priv
2690  *   Pointer to the private data structure.
2691  * @param[in] target_protocol
2692  *   The next protocol in the previous item.
2693  * @param[out] error
2694  *   Pointer to error structure.
2695  *
2696  * @return
2697  *   0 on success, a negative errno value otherwise and rte_errno is set.
2698  */
2699 int
2700 mlx5_flow_validate_item_vxlan_gpe(const struct rte_flow_item *item,
2701                                   uint64_t item_flags,
2702                                   struct rte_eth_dev *dev,
2703                                   struct rte_flow_error *error)
2704 {
2705         struct mlx5_priv *priv = dev->data->dev_private;
2706         const struct rte_flow_item_vxlan_gpe *spec = item->spec;
2707         const struct rte_flow_item_vxlan_gpe *mask = item->mask;
2708         int ret;
2709         union vni {
2710                 uint32_t vlan_id;
2711                 uint8_t vni[4];
2712         } id = { .vlan_id = 0, };
2713
2714         if (!priv->config.l3_vxlan_en)
2715                 return rte_flow_error_set(error, ENOTSUP,
2716                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2717                                           "L3 VXLAN is not enabled by device"
2718                                           " parameter and/or not configured in"
2719                                           " firmware");
2720         if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
2721                 return rte_flow_error_set(error, ENOTSUP,
2722                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2723                                           "multiple tunnel layers not"
2724                                           " supported");
2725         /*
2726          * Verify only UDPv4 is present as defined in
2727          * https://tools.ietf.org/html/rfc7348
2728          */
2729         if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP))
2730                 return rte_flow_error_set(error, EINVAL,
2731                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2732                                           "no outer UDP layer found");
2733         if (!mask)
2734                 mask = &rte_flow_item_vxlan_gpe_mask;
2735         ret = mlx5_flow_item_acceptable
2736                 (item, (const uint8_t *)mask,
2737                  (const uint8_t *)&rte_flow_item_vxlan_gpe_mask,
2738                  sizeof(struct rte_flow_item_vxlan_gpe),
2739                  MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
2740         if (ret < 0)
2741                 return ret;
2742         if (spec) {
2743                 if (spec->protocol)
2744                         return rte_flow_error_set(error, ENOTSUP,
2745                                                   RTE_FLOW_ERROR_TYPE_ITEM,
2746                                                   item,
2747                                                   "VxLAN-GPE protocol"
2748                                                   " not supported");
2749                 memcpy(&id.vni[1], spec->vni, 3);
2750                 memcpy(&id.vni[1], mask->vni, 3);
2751         }
2752         if (!(item_flags & MLX5_FLOW_LAYER_OUTER))
2753                 return rte_flow_error_set(error, ENOTSUP,
2754                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2755                                           "VXLAN-GPE tunnel must be fully"
2756                                           " defined");
2757         return 0;
2758 }
2759 /**
2760  * Validate GRE Key item.
2761  *
2762  * @param[in] item
2763  *   Item specification.
2764  * @param[in] item_flags
2765  *   Bit flags to mark detected items.
2766  * @param[in] gre_item
2767  *   Pointer to gre_item
2768  * @param[out] error
2769  *   Pointer to error structure.
2770  *
2771  * @return
2772  *   0 on success, a negative errno value otherwise and rte_errno is set.
2773  */
2774 int
2775 mlx5_flow_validate_item_gre_key(const struct rte_flow_item *item,
2776                                 uint64_t item_flags,
2777                                 const struct rte_flow_item *gre_item,
2778                                 struct rte_flow_error *error)
2779 {
2780         const rte_be32_t *mask = item->mask;
2781         int ret = 0;
2782         rte_be32_t gre_key_default_mask = RTE_BE32(UINT32_MAX);
2783         const struct rte_flow_item_gre *gre_spec;
2784         const struct rte_flow_item_gre *gre_mask;
2785
2786         if (item_flags & MLX5_FLOW_LAYER_GRE_KEY)
2787                 return rte_flow_error_set(error, ENOTSUP,
2788                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2789                                           "Multiple GRE key not support");
2790         if (!(item_flags & MLX5_FLOW_LAYER_GRE))
2791                 return rte_flow_error_set(error, ENOTSUP,
2792                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2793                                           "No preceding GRE header");
2794         if (item_flags & MLX5_FLOW_LAYER_INNER)
2795                 return rte_flow_error_set(error, ENOTSUP,
2796                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2797                                           "GRE key following a wrong item");
2798         gre_mask = gre_item->mask;
2799         if (!gre_mask)
2800                 gre_mask = &rte_flow_item_gre_mask;
2801         gre_spec = gre_item->spec;
2802         if (gre_spec && (gre_mask->c_rsvd0_ver & RTE_BE16(0x2000)) &&
2803                          !(gre_spec->c_rsvd0_ver & RTE_BE16(0x2000)))
2804                 return rte_flow_error_set(error, EINVAL,
2805                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2806                                           "Key bit must be on");
2807
2808         if (!mask)
2809                 mask = &gre_key_default_mask;
2810         ret = mlx5_flow_item_acceptable
2811                 (item, (const uint8_t *)mask,
2812                  (const uint8_t *)&gre_key_default_mask,
2813                  sizeof(rte_be32_t), MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
2814         return ret;
2815 }
2816
2817 /**
2818  * Validate GRE item.
2819  *
2820  * @param[in] item
2821  *   Item specification.
2822  * @param[in] item_flags
2823  *   Bit flags to mark detected items.
2824  * @param[in] target_protocol
2825  *   The next protocol in the previous item.
2826  * @param[out] error
2827  *   Pointer to error structure.
2828  *
2829  * @return
2830  *   0 on success, a negative errno value otherwise and rte_errno is set.
2831  */
2832 int
2833 mlx5_flow_validate_item_gre(const struct rte_flow_item *item,
2834                             uint64_t item_flags,
2835                             uint8_t target_protocol,
2836                             struct rte_flow_error *error)
2837 {
2838         const struct rte_flow_item_gre *spec __rte_unused = item->spec;
2839         const struct rte_flow_item_gre *mask = item->mask;
2840         int ret;
2841         const struct rte_flow_item_gre nic_mask = {
2842                 .c_rsvd0_ver = RTE_BE16(0xB000),
2843                 .protocol = RTE_BE16(UINT16_MAX),
2844         };
2845
2846         if (target_protocol != 0xff && target_protocol != IPPROTO_GRE)
2847                 return rte_flow_error_set(error, EINVAL,
2848                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2849                                           "protocol filtering not compatible"
2850                                           " with this GRE layer");
2851         if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
2852                 return rte_flow_error_set(error, ENOTSUP,
2853                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2854                                           "multiple tunnel layers not"
2855                                           " supported");
2856         if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L3))
2857                 return rte_flow_error_set(error, ENOTSUP,
2858                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2859                                           "L3 Layer is missing");
2860         if (!mask)
2861                 mask = &rte_flow_item_gre_mask;
2862         ret = mlx5_flow_item_acceptable
2863                 (item, (const uint8_t *)mask,
2864                  (const uint8_t *)&nic_mask,
2865                  sizeof(struct rte_flow_item_gre), MLX5_ITEM_RANGE_NOT_ACCEPTED,
2866                  error);
2867         if (ret < 0)
2868                 return ret;
2869 #ifndef HAVE_MLX5DV_DR
2870 #ifndef HAVE_IBV_DEVICE_MPLS_SUPPORT
2871         if (spec && (spec->protocol & mask->protocol))
2872                 return rte_flow_error_set(error, ENOTSUP,
2873                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2874                                           "without MPLS support the"
2875                                           " specification cannot be used for"
2876                                           " filtering");
2877 #endif
2878 #endif
2879         return 0;
2880 }
2881
2882 /**
2883  * Validate Geneve item.
2884  *
2885  * @param[in] item
2886  *   Item specification.
2887  * @param[in] itemFlags
2888  *   Bit-fields that holds the items detected until now.
2889  * @param[in] enPriv
2890  *   Pointer to the private data structure.
2891  * @param[out] error
2892  *   Pointer to error structure.
2893  *
2894  * @return
2895  *   0 on success, a negative errno value otherwise and rte_errno is set.
2896  */
2897
2898 int
2899 mlx5_flow_validate_item_geneve(const struct rte_flow_item *item,
2900                                uint64_t item_flags,
2901                                struct rte_eth_dev *dev,
2902                                struct rte_flow_error *error)
2903 {
2904         struct mlx5_priv *priv = dev->data->dev_private;
2905         const struct rte_flow_item_geneve *spec = item->spec;
2906         const struct rte_flow_item_geneve *mask = item->mask;
2907         int ret;
2908         uint16_t gbhdr;
2909         uint8_t opt_len = priv->config.hca_attr.geneve_max_opt_len ?
2910                           MLX5_GENEVE_OPT_LEN_1 : MLX5_GENEVE_OPT_LEN_0;
2911         const struct rte_flow_item_geneve nic_mask = {
2912                 .ver_opt_len_o_c_rsvd0 = RTE_BE16(0x3f80),
2913                 .vni = "\xff\xff\xff",
2914                 .protocol = RTE_BE16(UINT16_MAX),
2915         };
2916
2917         if (!priv->config.hca_attr.tunnel_stateless_geneve_rx)
2918                 return rte_flow_error_set(error, ENOTSUP,
2919                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2920                                           "L3 Geneve is not enabled by device"
2921                                           " parameter and/or not configured in"
2922                                           " firmware");
2923         if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
2924                 return rte_flow_error_set(error, ENOTSUP,
2925                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2926                                           "multiple tunnel layers not"
2927                                           " supported");
2928         /*
2929          * Verify only UDPv4 is present as defined in
2930          * https://tools.ietf.org/html/rfc7348
2931          */
2932         if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP))
2933                 return rte_flow_error_set(error, EINVAL,
2934                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
2935                                           "no outer UDP layer found");
2936         if (!mask)
2937                 mask = &rte_flow_item_geneve_mask;
2938         ret = mlx5_flow_item_acceptable
2939                                   (item, (const uint8_t *)mask,
2940                                    (const uint8_t *)&nic_mask,
2941                                    sizeof(struct rte_flow_item_geneve),
2942                                    MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
2943         if (ret)
2944                 return ret;
2945         if (spec) {
2946                 gbhdr = rte_be_to_cpu_16(spec->ver_opt_len_o_c_rsvd0);
2947                 if (MLX5_GENEVE_VER_VAL(gbhdr) ||
2948                      MLX5_GENEVE_CRITO_VAL(gbhdr) ||
2949                      MLX5_GENEVE_RSVD_VAL(gbhdr) || spec->rsvd1)
2950                         return rte_flow_error_set(error, ENOTSUP,
2951                                                   RTE_FLOW_ERROR_TYPE_ITEM,
2952                                                   item,
2953                                                   "Geneve protocol unsupported"
2954                                                   " fields are being used");
2955                 if (MLX5_GENEVE_OPTLEN_VAL(gbhdr) > opt_len)
2956                         return rte_flow_error_set
2957                                         (error, ENOTSUP,
2958                                          RTE_FLOW_ERROR_TYPE_ITEM,
2959                                          item,
2960                                          "Unsupported Geneve options length");
2961         }
2962         if (!(item_flags & MLX5_FLOW_LAYER_OUTER))
2963                 return rte_flow_error_set
2964                                     (error, ENOTSUP,
2965                                      RTE_FLOW_ERROR_TYPE_ITEM, item,
2966                                      "Geneve tunnel must be fully defined");
2967         return 0;
2968 }
2969
2970 /**
2971  * Validate Geneve TLV option item.
2972  *
2973  * @param[in] item
2974  *   Item specification.
2975  * @param[in] last_item
2976  *   Previous validated item in the pattern items.
2977  * @param[in] geneve_item
2978  *   Previous GENEVE item specification.
2979  * @param[in] dev
2980  *   Pointer to the rte_eth_dev structure.
2981  * @param[out] error
2982  *   Pointer to error structure.
2983  *
2984  * @return
2985  *   0 on success, a negative errno value otherwise and rte_errno is set.
2986  */
2987 int
2988 mlx5_flow_validate_item_geneve_opt(const struct rte_flow_item *item,
2989                                    uint64_t last_item,
2990                                    const struct rte_flow_item *geneve_item,
2991                                    struct rte_eth_dev *dev,
2992                                    struct rte_flow_error *error)
2993 {
2994         struct mlx5_priv *priv = dev->data->dev_private;
2995         struct mlx5_dev_ctx_shared *sh = priv->sh;
2996         struct mlx5_geneve_tlv_option_resource *geneve_opt_resource;
2997         struct mlx5_hca_attr *hca_attr = &priv->config.hca_attr;
2998         uint8_t data_max_supported =
2999                         hca_attr->max_geneve_tlv_option_data_len * 4;
3000         struct mlx5_dev_config *config = &priv->config;
3001         const struct rte_flow_item_geneve *geneve_spec;
3002         const struct rte_flow_item_geneve *geneve_mask;
3003         const struct rte_flow_item_geneve_opt *spec = item->spec;
3004         const struct rte_flow_item_geneve_opt *mask = item->mask;
3005         unsigned int i;
3006         unsigned int data_len;
3007         uint8_t tlv_option_len;
3008         uint16_t optlen_m, optlen_v;
3009         const struct rte_flow_item_geneve_opt full_mask = {
3010                 .option_class = RTE_BE16(0xffff),
3011                 .option_type = 0xff,
3012                 .option_len = 0x1f,
3013         };
3014
3015         if (!mask)
3016                 mask = &rte_flow_item_geneve_opt_mask;
3017         if (!spec)
3018                 return rte_flow_error_set
3019                         (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item,
3020                         "Geneve TLV opt class/type/length must be specified");
3021         if ((uint32_t)spec->option_len > MLX5_GENEVE_OPTLEN_MASK)
3022                 return rte_flow_error_set
3023                         (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item,
3024                         "Geneve TLV opt length exceeds the limit (31)");
3025         /* Check if class type and length masks are full. */
3026         if (full_mask.option_class != mask->option_class ||
3027             full_mask.option_type != mask->option_type ||
3028             full_mask.option_len != (mask->option_len & full_mask.option_len))
3029                 return rte_flow_error_set
3030                         (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item,
3031                         "Geneve TLV opt class/type/length masks must be full");
3032         /* Check if length is supported */
3033         if ((uint32_t)spec->option_len >
3034                         config->hca_attr.max_geneve_tlv_option_data_len)
3035                 return rte_flow_error_set
3036                         (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item,
3037                         "Geneve TLV opt length not supported");
3038         if (config->hca_attr.max_geneve_tlv_options > 1)
3039                 DRV_LOG(DEBUG,
3040                         "max_geneve_tlv_options supports more than 1 option");
3041         /* Check GENEVE item preceding. */
3042         if (!geneve_item || !(last_item & MLX5_FLOW_LAYER_GENEVE))
3043                 return rte_flow_error_set
3044                         (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item,
3045                         "Geneve opt item must be preceded with Geneve item");
3046         geneve_spec = geneve_item->spec;
3047         geneve_mask = geneve_item->mask ? geneve_item->mask :
3048                                           &rte_flow_item_geneve_mask;
3049         /* Check if GENEVE TLV option size doesn't exceed option length */
3050         if (geneve_spec && (geneve_mask->ver_opt_len_o_c_rsvd0 ||
3051                             geneve_spec->ver_opt_len_o_c_rsvd0)) {
3052                 tlv_option_len = spec->option_len & mask->option_len;
3053                 optlen_v = rte_be_to_cpu_16(geneve_spec->ver_opt_len_o_c_rsvd0);
3054                 optlen_v = MLX5_GENEVE_OPTLEN_VAL(optlen_v);
3055                 optlen_m = rte_be_to_cpu_16(geneve_mask->ver_opt_len_o_c_rsvd0);
3056                 optlen_m = MLX5_GENEVE_OPTLEN_VAL(optlen_m);
3057                 if ((optlen_v & optlen_m) <= tlv_option_len)
3058                         return rte_flow_error_set
3059                                 (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item,
3060                                  "GENEVE TLV option length exceeds optlen");
3061         }
3062         /* Check if length is 0 or data is 0. */
3063         if (spec->data == NULL || spec->option_len == 0)
3064                 return rte_flow_error_set
3065                         (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item,
3066                         "Geneve TLV opt with zero data/length not supported");
3067         /* Check not all data & mask are 0. */
3068         data_len = spec->option_len * 4;
3069         if (mask->data == NULL) {
3070                 for (i = 0; i < data_len; i++)
3071                         if (spec->data[i])
3072                                 break;
3073                 if (i == data_len)
3074                         return rte_flow_error_set(error, ENOTSUP,
3075                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
3076                                 "Can't match on Geneve option data 0");
3077         } else {
3078                 for (i = 0; i < data_len; i++)
3079                         if (spec->data[i] & mask->data[i])
3080                                 break;
3081                 if (i == data_len)
3082                         return rte_flow_error_set(error, ENOTSUP,
3083                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
3084                                 "Can't match on Geneve option data and mask 0");
3085                 /* Check data mask supported. */
3086                 for (i = data_max_supported; i < data_len ; i++)
3087                         if (mask->data[i])
3088                                 return rte_flow_error_set(error, ENOTSUP,
3089                                         RTE_FLOW_ERROR_TYPE_ITEM, item,
3090                                         "Data mask is of unsupported size");
3091         }
3092         /* Check GENEVE option is supported in NIC. */
3093         if (!config->hca_attr.geneve_tlv_opt)
3094                 return rte_flow_error_set
3095                         (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item,
3096                         "Geneve TLV opt not supported");
3097         /* Check if we already have geneve option with different type/class. */
3098         rte_spinlock_lock(&sh->geneve_tlv_opt_sl);
3099         geneve_opt_resource = sh->geneve_tlv_option_resource;
3100         if (geneve_opt_resource != NULL)
3101                 if (geneve_opt_resource->option_class != spec->option_class ||
3102                     geneve_opt_resource->option_type != spec->option_type ||
3103                     geneve_opt_resource->length != spec->option_len) {
3104                         rte_spinlock_unlock(&sh->geneve_tlv_opt_sl);
3105                         return rte_flow_error_set(error, ENOTSUP,
3106                                 RTE_FLOW_ERROR_TYPE_ITEM, item,
3107                                 "Only one Geneve TLV option supported");
3108                 }
3109         rte_spinlock_unlock(&sh->geneve_tlv_opt_sl);
3110         return 0;
3111 }
3112
3113 /**
3114  * Validate MPLS item.
3115  *
3116  * @param[in] dev
3117  *   Pointer to the rte_eth_dev structure.
3118  * @param[in] item
3119  *   Item specification.
3120  * @param[in] item_flags
3121  *   Bit-fields that holds the items detected until now.
3122  * @param[in] prev_layer
3123  *   The protocol layer indicated in previous item.
3124  * @param[out] error
3125  *   Pointer to error structure.
3126  *
3127  * @return
3128  *   0 on success, a negative errno value otherwise and rte_errno is set.
3129  */
3130 int
3131 mlx5_flow_validate_item_mpls(struct rte_eth_dev *dev __rte_unused,
3132                              const struct rte_flow_item *item __rte_unused,
3133                              uint64_t item_flags __rte_unused,
3134                              uint64_t prev_layer __rte_unused,
3135                              struct rte_flow_error *error)
3136 {
3137 #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT
3138         const struct rte_flow_item_mpls *mask = item->mask;
3139         struct mlx5_priv *priv = dev->data->dev_private;
3140         int ret;
3141
3142         if (!priv->config.mpls_en)
3143                 return rte_flow_error_set(error, ENOTSUP,
3144                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
3145                                           "MPLS not supported or"
3146                                           " disabled in firmware"
3147                                           " configuration.");
3148         /* MPLS over UDP, GRE is allowed */
3149         if (!(prev_layer & (MLX5_FLOW_LAYER_OUTER_L4_UDP |
3150                             MLX5_FLOW_LAYER_GRE |
3151                             MLX5_FLOW_LAYER_GRE_KEY)))
3152                 return rte_flow_error_set(error, EINVAL,
3153                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
3154                                           "protocol filtering not compatible"
3155                                           " with MPLS layer");
3156         /* Multi-tunnel isn't allowed but MPLS over GRE is an exception. */
3157         if ((item_flags & MLX5_FLOW_LAYER_TUNNEL) &&
3158             !(item_flags & MLX5_FLOW_LAYER_GRE))
3159                 return rte_flow_error_set(error, ENOTSUP,
3160                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
3161                                           "multiple tunnel layers not"
3162                                           " supported");
3163         if (!mask)
3164                 mask = &rte_flow_item_mpls_mask;
3165         ret = mlx5_flow_item_acceptable
3166                 (item, (const uint8_t *)mask,
3167                  (const uint8_t *)&rte_flow_item_mpls_mask,
3168                  sizeof(struct rte_flow_item_mpls),
3169                  MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
3170         if (ret < 0)
3171                 return ret;
3172         return 0;
3173 #else
3174         return rte_flow_error_set(error, ENOTSUP,
3175                                   RTE_FLOW_ERROR_TYPE_ITEM, item,
3176                                   "MPLS is not supported by Verbs, please"
3177                                   " update.");
3178 #endif
3179 }
3180
3181 /**
3182  * Validate NVGRE item.
3183  *
3184  * @param[in] item
3185  *   Item specification.
3186  * @param[in] item_flags
3187  *   Bit flags to mark detected items.
3188  * @param[in] target_protocol
3189  *   The next protocol in the previous item.
3190  * @param[out] error
3191  *   Pointer to error structure.
3192  *
3193  * @return
3194  *   0 on success, a negative errno value otherwise and rte_errno is set.
3195  */
3196 int
3197 mlx5_flow_validate_item_nvgre(const struct rte_flow_item *item,
3198                               uint64_t item_flags,
3199                               uint8_t target_protocol,
3200                               struct rte_flow_error *error)
3201 {
3202         const struct rte_flow_item_nvgre *mask = item->mask;
3203         int ret;
3204
3205         if (target_protocol != 0xff && target_protocol != IPPROTO_GRE)
3206                 return rte_flow_error_set(error, EINVAL,
3207                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
3208                                           "protocol filtering not compatible"
3209                                           " with this GRE layer");
3210         if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
3211                 return rte_flow_error_set(error, ENOTSUP,
3212                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
3213                                           "multiple tunnel layers not"
3214                                           " supported");
3215         if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L3))
3216                 return rte_flow_error_set(error, ENOTSUP,
3217                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
3218                                           "L3 Layer is missing");
3219         if (!mask)
3220                 mask = &rte_flow_item_nvgre_mask;
3221         ret = mlx5_flow_item_acceptable
3222                 (item, (const uint8_t *)mask,
3223                  (const uint8_t *)&rte_flow_item_nvgre_mask,
3224                  sizeof(struct rte_flow_item_nvgre),
3225                  MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
3226         if (ret < 0)
3227                 return ret;
3228         return 0;
3229 }
3230
3231 /**
3232  * Validate eCPRI item.
3233  *
3234  * @param[in] item
3235  *   Item specification.
3236  * @param[in] item_flags
3237  *   Bit-fields that holds the items detected until now.
3238  * @param[in] last_item
3239  *   Previous validated item in the pattern items.
3240  * @param[in] ether_type
3241  *   Type in the ethernet layer header (including dot1q).
3242  * @param[in] acc_mask
3243  *   Acceptable mask, if NULL default internal default mask
3244  *   will be used to check whether item fields are supported.
3245  * @param[out] error
3246  *   Pointer to error structure.
3247  *
3248  * @return
3249  *   0 on success, a negative errno value otherwise and rte_errno is set.
3250  */
3251 int
3252 mlx5_flow_validate_item_ecpri(const struct rte_flow_item *item,
3253                               uint64_t item_flags,
3254                               uint64_t last_item,
3255                               uint16_t ether_type,
3256                               const struct rte_flow_item_ecpri *acc_mask,
3257                               struct rte_flow_error *error)
3258 {
3259         const struct rte_flow_item_ecpri *mask = item->mask;
3260         const struct rte_flow_item_ecpri nic_mask = {
3261                 .hdr = {
3262                         .common = {
3263                                 .u32 =
3264                                 RTE_BE32(((const struct rte_ecpri_common_hdr) {
3265                                         .type = 0xFF,
3266                                         }).u32),
3267                         },
3268                         .dummy[0] = 0xFFFFFFFF,
3269                 },
3270         };
3271         const uint64_t outer_l2_vlan = (MLX5_FLOW_LAYER_OUTER_L2 |
3272                                         MLX5_FLOW_LAYER_OUTER_VLAN);
3273         struct rte_flow_item_ecpri mask_lo;
3274
3275         if (!(last_item & outer_l2_vlan) &&
3276             last_item != MLX5_FLOW_LAYER_OUTER_L4_UDP)
3277                 return rte_flow_error_set(error, EINVAL,
3278                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
3279                                           "eCPRI can only follow L2/VLAN layer or UDP layer");
3280         if ((last_item & outer_l2_vlan) && ether_type &&
3281             ether_type != RTE_ETHER_TYPE_ECPRI)
3282                 return rte_flow_error_set(error, EINVAL,
3283                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
3284                                           "eCPRI cannot follow L2/VLAN layer which ether type is not 0xAEFE");
3285         if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
3286                 return rte_flow_error_set(error, EINVAL,
3287                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
3288                                           "eCPRI with tunnel is not supported right now");
3289         if (item_flags & MLX5_FLOW_LAYER_OUTER_L3)
3290                 return rte_flow_error_set(error, ENOTSUP,
3291                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
3292                                           "multiple L3 layers not supported");
3293         else if (item_flags & MLX5_FLOW_LAYER_OUTER_L4_TCP)
3294                 return rte_flow_error_set(error, EINVAL,
3295                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
3296                                           "eCPRI cannot coexist with a TCP layer");
3297         /* In specification, eCPRI could be over UDP layer. */
3298         else if (item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP)
3299                 return rte_flow_error_set(error, EINVAL,
3300                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
3301                                           "eCPRI over UDP layer is not yet supported right now");
3302         /* Mask for type field in common header could be zero. */
3303         if (!mask)
3304                 mask = &rte_flow_item_ecpri_mask;
3305         mask_lo.hdr.common.u32 = rte_be_to_cpu_32(mask->hdr.common.u32);
3306         /* Input mask is in big-endian format. */
3307         if (mask_lo.hdr.common.type != 0 && mask_lo.hdr.common.type != 0xff)
3308                 return rte_flow_error_set(error, EINVAL,
3309                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
3310                                           "partial mask is not supported for protocol");
3311         else if (mask_lo.hdr.common.type == 0 && mask->hdr.dummy[0] != 0)
3312                 return rte_flow_error_set(error, EINVAL,
3313                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
3314                                           "message header mask must be after a type mask");
3315         return mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
3316                                          acc_mask ? (const uint8_t *)acc_mask
3317                                                   : (const uint8_t *)&nic_mask,
3318                                          sizeof(struct rte_flow_item_ecpri),
3319                                          MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
3320 }
3321
3322 static int
3323 flow_null_validate(struct rte_eth_dev *dev __rte_unused,
3324                    const struct rte_flow_attr *attr __rte_unused,
3325                    const struct rte_flow_item items[] __rte_unused,
3326                    const struct rte_flow_action actions[] __rte_unused,
3327                    bool external __rte_unused,
3328                    int hairpin __rte_unused,
3329                    struct rte_flow_error *error)
3330 {
3331         return rte_flow_error_set(error, ENOTSUP,
3332                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
3333 }
3334
3335 static struct mlx5_flow *
3336 flow_null_prepare(struct rte_eth_dev *dev __rte_unused,
3337                   const struct rte_flow_attr *attr __rte_unused,
3338                   const struct rte_flow_item items[] __rte_unused,
3339                   const struct rte_flow_action actions[] __rte_unused,
3340                   struct rte_flow_error *error)
3341 {
3342         rte_flow_error_set(error, ENOTSUP,
3343                            RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
3344         return NULL;
3345 }
3346
3347 static int
3348 flow_null_translate(struct rte_eth_dev *dev __rte_unused,
3349                     struct mlx5_flow *dev_flow __rte_unused,
3350                     const struct rte_flow_attr *attr __rte_unused,
3351                     const struct rte_flow_item items[] __rte_unused,
3352                     const struct rte_flow_action actions[] __rte_unused,
3353                     struct rte_flow_error *error)
3354 {
3355         return rte_flow_error_set(error, ENOTSUP,
3356                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
3357 }
3358
3359 static int
3360 flow_null_apply(struct rte_eth_dev *dev __rte_unused,
3361                 struct rte_flow *flow __rte_unused,
3362                 struct rte_flow_error *error)
3363 {
3364         return rte_flow_error_set(error, ENOTSUP,
3365                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
3366 }
3367
3368 static void
3369 flow_null_remove(struct rte_eth_dev *dev __rte_unused,
3370                  struct rte_flow *flow __rte_unused)
3371 {
3372 }
3373
3374 static void
3375 flow_null_destroy(struct rte_eth_dev *dev __rte_unused,
3376                   struct rte_flow *flow __rte_unused)
3377 {
3378 }
3379
3380 static int
3381 flow_null_query(struct rte_eth_dev *dev __rte_unused,
3382                 struct rte_flow *flow __rte_unused,
3383                 const struct rte_flow_action *actions __rte_unused,
3384                 void *data __rte_unused,
3385                 struct rte_flow_error *error)
3386 {
3387         return rte_flow_error_set(error, ENOTSUP,
3388                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
3389 }
3390
3391 static int
3392 flow_null_sync_domain(struct rte_eth_dev *dev __rte_unused,
3393                       uint32_t domains __rte_unused,
3394                       uint32_t flags __rte_unused)
3395 {
3396         return 0;
3397 }
3398
3399 /* Void driver to protect from null pointer reference. */
3400 const struct mlx5_flow_driver_ops mlx5_flow_null_drv_ops = {
3401         .validate = flow_null_validate,
3402         .prepare = flow_null_prepare,
3403         .translate = flow_null_translate,
3404         .apply = flow_null_apply,
3405         .remove = flow_null_remove,
3406         .destroy = flow_null_destroy,
3407         .query = flow_null_query,
3408         .sync_domain = flow_null_sync_domain,
3409 };
3410
3411 /**
3412  * Select flow driver type according to flow attributes and device
3413  * configuration.
3414  *
3415  * @param[in] dev
3416  *   Pointer to the dev structure.
3417  * @param[in] attr
3418  *   Pointer to the flow attributes.
3419  *
3420  * @return
3421  *   flow driver type, MLX5_FLOW_TYPE_MAX otherwise.
3422  */
3423 static enum mlx5_flow_drv_type
3424 flow_get_drv_type(struct rte_eth_dev *dev, const struct rte_flow_attr *attr)
3425 {
3426         struct mlx5_priv *priv = dev->data->dev_private;
3427         /* The OS can determine first a specific flow type (DV, VERBS) */
3428         enum mlx5_flow_drv_type type = mlx5_flow_os_get_type();
3429
3430         if (type != MLX5_FLOW_TYPE_MAX)
3431                 return type;
3432         /* If no OS specific type - continue with DV/VERBS selection */
3433         if (attr->transfer && priv->config.dv_esw_en)
3434                 type = MLX5_FLOW_TYPE_DV;
3435         if (!attr->transfer)
3436                 type = priv->config.dv_flow_en ? MLX5_FLOW_TYPE_DV :
3437                                                  MLX5_FLOW_TYPE_VERBS;
3438         return type;
3439 }
3440
3441 #define flow_get_drv_ops(type) flow_drv_ops[type]
3442
3443 /**
3444  * Flow driver validation API. This abstracts calling driver specific functions.
3445  * The type of flow driver is determined according to flow attributes.
3446  *
3447  * @param[in] dev
3448  *   Pointer to the dev structure.
3449  * @param[in] attr
3450  *   Pointer to the flow attributes.
3451  * @param[in] items
3452  *   Pointer to the list of items.
3453  * @param[in] actions
3454  *   Pointer to the list of actions.
3455  * @param[in] external
3456  *   This flow rule is created by request external to PMD.
3457  * @param[in] hairpin
3458  *   Number of hairpin TX actions, 0 means classic flow.
3459  * @param[out] error
3460  *   Pointer to the error structure.
3461  *
3462  * @return
3463  *   0 on success, a negative errno value otherwise and rte_errno is set.
3464  */
3465 static inline int
3466 flow_drv_validate(struct rte_eth_dev *dev,
3467                   const struct rte_flow_attr *attr,
3468                   const struct rte_flow_item items[],
3469                   const struct rte_flow_action actions[],
3470                   bool external, int hairpin, struct rte_flow_error *error)
3471 {
3472         const struct mlx5_flow_driver_ops *fops;
3473         enum mlx5_flow_drv_type type = flow_get_drv_type(dev, attr);
3474
3475         fops = flow_get_drv_ops(type);
3476         return fops->validate(dev, attr, items, actions, external,
3477                               hairpin, error);
3478 }
3479
3480 /**
3481  * Flow driver preparation API. This abstracts calling driver specific
3482  * functions. Parent flow (rte_flow) should have driver type (drv_type). It
3483  * calculates the size of memory required for device flow, allocates the memory,
3484  * initializes the device flow and returns the pointer.
3485  *
3486  * @note
3487  *   This function initializes device flow structure such as dv or verbs in
3488  *   struct mlx5_flow. However, it is caller's responsibility to initialize the
3489  *   rest. For example, adding returning device flow to flow->dev_flow list and
3490  *   setting backward reference to the flow should be done out of this function.
3491  *   layers field is not filled either.
3492  *
3493  * @param[in] dev
3494  *   Pointer to the dev structure.
3495  * @param[in] attr
3496  *   Pointer to the flow attributes.
3497  * @param[in] items
3498  *   Pointer to the list of items.
3499  * @param[in] actions
3500  *   Pointer to the list of actions.
3501  * @param[in] flow_idx
3502  *   This memory pool index to the flow.
3503  * @param[out] error
3504  *   Pointer to the error structure.
3505  *
3506  * @return
3507  *   Pointer to device flow on success, otherwise NULL and rte_errno is set.
3508  */
3509 static inline struct mlx5_flow *
3510 flow_drv_prepare(struct rte_eth_dev *dev,
3511                  const struct rte_flow *flow,
3512                  const struct rte_flow_attr *attr,
3513                  const struct rte_flow_item items[],
3514                  const struct rte_flow_action actions[],
3515                  uint32_t flow_idx,
3516                  struct rte_flow_error *error)
3517 {
3518         const struct mlx5_flow_driver_ops *fops;
3519         enum mlx5_flow_drv_type type = flow->drv_type;
3520         struct mlx5_flow *mlx5_flow = NULL;
3521
3522         MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
3523         fops = flow_get_drv_ops(type);
3524         mlx5_flow = fops->prepare(dev, attr, items, actions, error);
3525         if (mlx5_flow)
3526                 mlx5_flow->flow_idx = flow_idx;
3527         return mlx5_flow;
3528 }
3529
3530 /**
3531  * Flow driver translation API. This abstracts calling driver specific
3532  * functions. Parent flow (rte_flow) should have driver type (drv_type). It
3533  * translates a generic flow into a driver flow. flow_drv_prepare() must
3534  * precede.
3535  *
3536  * @note
3537  *   dev_flow->layers could be filled as a result of parsing during translation
3538  *   if needed by flow_drv_apply(). dev_flow->flow->actions can also be filled
3539  *   if necessary. As a flow can have multiple dev_flows by RSS flow expansion,
3540  *   flow->actions could be overwritten even though all the expanded dev_flows
3541  *   have the same actions.
3542  *
3543  * @param[in] dev
3544  *   Pointer to the rte dev structure.
3545  * @param[in, out] dev_flow
3546  *   Pointer to the mlx5 flow.
3547  * @param[in] attr
3548  *   Pointer to the flow attributes.
3549  * @param[in] items
3550  *   Pointer to the list of items.
3551  * @param[in] actions
3552  *   Pointer to the list of actions.
3553  * @param[out] error
3554  *   Pointer to the error structure.
3555  *
3556  * @return
3557  *   0 on success, a negative errno value otherwise and rte_errno is set.
3558  */
3559 static inline int
3560 flow_drv_translate(struct rte_eth_dev *dev, struct mlx5_flow *dev_flow,
3561                    const struct rte_flow_attr *attr,
3562                    const struct rte_flow_item items[],
3563                    const struct rte_flow_action actions[],
3564                    struct rte_flow_error *error)
3565 {
3566         const struct mlx5_flow_driver_ops *fops;
3567         enum mlx5_flow_drv_type type = dev_flow->flow->drv_type;
3568
3569         MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
3570         fops = flow_get_drv_ops(type);
3571         return fops->translate(dev, dev_flow, attr, items, actions, error);
3572 }
3573
3574 /**
3575  * Flow driver apply API. This abstracts calling driver specific functions.
3576  * Parent flow (rte_flow) should have driver type (drv_type). It applies
3577  * translated driver flows on to device. flow_drv_translate() must precede.
3578  *
3579  * @param[in] dev
3580  *   Pointer to Ethernet device structure.
3581  * @param[in, out] flow
3582  *   Pointer to flow structure.
3583  * @param[out] error
3584  *   Pointer to error structure.
3585  *
3586  * @return
3587  *   0 on success, a negative errno value otherwise and rte_errno is set.
3588  */
3589 static inline int
3590 flow_drv_apply(struct rte_eth_dev *dev, struct rte_flow *flow,
3591                struct rte_flow_error *error)
3592 {
3593         const struct mlx5_flow_driver_ops *fops;
3594         enum mlx5_flow_drv_type type = flow->drv_type;
3595
3596         MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
3597         fops = flow_get_drv_ops(type);
3598         return fops->apply(dev, flow, error);
3599 }
3600
3601 /**
3602  * Flow driver destroy API. This abstracts calling driver specific functions.
3603  * Parent flow (rte_flow) should have driver type (drv_type). It removes a flow
3604  * on device and releases resources of the flow.
3605  *
3606  * @param[in] dev
3607  *   Pointer to Ethernet device.
3608  * @param[in, out] flow
3609  *   Pointer to flow structure.
3610  */
3611 static inline void
3612 flow_drv_destroy(struct rte_eth_dev *dev, struct rte_flow *flow)
3613 {
3614         const struct mlx5_flow_driver_ops *fops;
3615         enum mlx5_flow_drv_type type = flow->drv_type;
3616
3617         MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
3618         fops = flow_get_drv_ops(type);
3619         fops->destroy(dev, flow);
3620 }
3621
3622 /**
3623  * Flow driver find RSS policy tbl API. This abstracts calling driver
3624  * specific functions. Parent flow (rte_flow) should have driver
3625  * type (drv_type). It will find the RSS policy table that has the rss_desc.
3626  *
3627  * @param[in] dev
3628  *   Pointer to Ethernet device.
3629  * @param[in, out] flow
3630  *   Pointer to flow structure.
3631  * @param[in] policy
3632  *   Pointer to meter policy table.
3633  * @param[in] rss_desc
3634  *   Pointer to rss_desc
3635  */
3636 static struct mlx5_flow_meter_sub_policy *
3637 flow_drv_meter_sub_policy_rss_prepare(struct rte_eth_dev *dev,
3638                 struct rte_flow *flow,
3639                 struct mlx5_flow_meter_policy *policy,
3640                 struct mlx5_flow_rss_desc *rss_desc[MLX5_MTR_RTE_COLORS])
3641 {
3642         const struct mlx5_flow_driver_ops *fops;
3643         enum mlx5_flow_drv_type type = flow->drv_type;
3644
3645         MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
3646         fops = flow_get_drv_ops(type);
3647         return fops->meter_sub_policy_rss_prepare(dev, policy, rss_desc);
3648 }
3649
3650 /**
3651  * Flow driver color tag rule API. This abstracts calling driver
3652  * specific functions. Parent flow (rte_flow) should have driver
3653  * type (drv_type). It will create the color tag rules in hierarchy meter.
3654  *
3655  * @param[in] dev
3656  *   Pointer to Ethernet device.
3657  * @param[in, out] flow
3658  *   Pointer to flow structure.
3659  * @param[in] fm
3660  *   Pointer to flow meter structure.
3661  * @param[in] src_port
3662  *   The src port this extra rule should use.
3663  * @param[in] item
3664  *   The src port id match item.
3665  * @param[out] error
3666  *   Pointer to error structure.
3667  */
3668 static int
3669 flow_drv_mtr_hierarchy_rule_create(struct rte_eth_dev *dev,
3670                 struct rte_flow *flow,
3671                 struct mlx5_flow_meter_info *fm,
3672                 int32_t src_port,
3673                 const struct rte_flow_item *item,
3674                 struct rte_flow_error *error)
3675 {
3676         const struct mlx5_flow_driver_ops *fops;
3677         enum mlx5_flow_drv_type type = flow->drv_type;
3678
3679         MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
3680         fops = flow_get_drv_ops(type);
3681         return fops->meter_hierarchy_rule_create(dev, fm,
3682                                                 src_port, item, error);
3683 }
3684
3685 /**
3686  * Get RSS action from the action list.
3687  *
3688  * @param[in] dev
3689  *   Pointer to Ethernet device.
3690  * @param[in] actions
3691  *   Pointer to the list of actions.
3692  * @param[in] flow
3693  *   Parent flow structure pointer.
3694  *
3695  * @return
3696  *   Pointer to the RSS action if exist, else return NULL.
3697  */
3698 static const struct rte_flow_action_rss*
3699 flow_get_rss_action(struct rte_eth_dev *dev,
3700                     const struct rte_flow_action actions[])
3701 {
3702         struct mlx5_priv *priv = dev->data->dev_private;
3703         const struct rte_flow_action_rss *rss = NULL;
3704         struct mlx5_meter_policy_action_container *acg;
3705         struct mlx5_meter_policy_action_container *acy;
3706
3707         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
3708                 switch (actions->type) {
3709                 case RTE_FLOW_ACTION_TYPE_RSS:
3710                         rss = actions->conf;
3711                         break;
3712                 case RTE_FLOW_ACTION_TYPE_SAMPLE:
3713                 {
3714                         const struct rte_flow_action_sample *sample =
3715                                                                 actions->conf;
3716                         const struct rte_flow_action *act = sample->actions;
3717                         for (; act->type != RTE_FLOW_ACTION_TYPE_END; act++)
3718                                 if (act->type == RTE_FLOW_ACTION_TYPE_RSS)
3719                                         rss = act->conf;
3720                         break;
3721                 }
3722                 case RTE_FLOW_ACTION_TYPE_METER:
3723                 {
3724                         uint32_t mtr_idx;
3725                         struct mlx5_flow_meter_info *fm;
3726                         struct mlx5_flow_meter_policy *policy;
3727                         const struct rte_flow_action_meter *mtr = actions->conf;
3728
3729                         fm = mlx5_flow_meter_find(priv, mtr->mtr_id, &mtr_idx);
3730                         if (fm && !fm->def_policy) {
3731                                 policy = mlx5_flow_meter_policy_find(dev,
3732                                                 fm->policy_id, NULL);
3733                                 MLX5_ASSERT(policy);
3734                                 if (policy->is_hierarchy) {
3735                                         policy =
3736                                 mlx5_flow_meter_hierarchy_get_final_policy(dev,
3737                                                                         policy);
3738                                         if (!policy)
3739                                                 return NULL;
3740                                 }
3741                                 if (policy->is_rss) {
3742                                         acg =
3743                                         &policy->act_cnt[RTE_COLOR_GREEN];
3744                                         acy =
3745                                         &policy->act_cnt[RTE_COLOR_YELLOW];
3746                                         if (acg->fate_action ==
3747                                             MLX5_FLOW_FATE_SHARED_RSS)
3748                                                 rss = acg->rss->conf;
3749                                         else if (acy->fate_action ==
3750                                                  MLX5_FLOW_FATE_SHARED_RSS)
3751                                                 rss = acy->rss->conf;
3752                                 }
3753                         }
3754                         break;
3755                 }
3756                 default:
3757                         break;
3758                 }
3759         }
3760         return rss;
3761 }
3762
3763 /**
3764  * Get ASO age action by index.
3765  *
3766  * @param[in] dev
3767  *   Pointer to the Ethernet device structure.
3768  * @param[in] age_idx
3769  *   Index to the ASO age action.
3770  *
3771  * @return
3772  *   The specified ASO age action.
3773  */
3774 struct mlx5_aso_age_action*
3775 flow_aso_age_get_by_idx(struct rte_eth_dev *dev, uint32_t age_idx)
3776 {
3777         uint16_t pool_idx = age_idx & UINT16_MAX;
3778         uint16_t offset = (age_idx >> 16) & UINT16_MAX;
3779         struct mlx5_priv *priv = dev->data->dev_private;
3780         struct mlx5_aso_age_mng *mng = priv->sh->aso_age_mng;
3781         struct mlx5_aso_age_pool *pool;
3782
3783         rte_rwlock_read_lock(&mng->resize_rwl);
3784         pool = mng->pools[pool_idx];
3785         rte_rwlock_read_unlock(&mng->resize_rwl);
3786         return &pool->actions[offset - 1];
3787 }
3788
3789 /* maps indirect action to translated direct in some actions array */
3790 struct mlx5_translated_action_handle {
3791         struct rte_flow_action_handle *action; /**< Indirect action handle. */
3792         int index; /**< Index in related array of rte_flow_action. */
3793 };
3794
3795 /**
3796  * Translates actions of type RTE_FLOW_ACTION_TYPE_INDIRECT to related
3797  * direct action if translation possible.
3798  * This functionality used to run same execution path for both direct and
3799  * indirect actions on flow create. All necessary preparations for indirect
3800  * action handling should be performed on *handle* actions list returned
3801  * from this call.
3802  *
3803  * @param[in] dev
3804  *   Pointer to Ethernet device.
3805  * @param[in] actions
3806  *   List of actions to translate.
3807  * @param[out] handle
3808  *   List to store translated indirect action object handles.
3809  * @param[in, out] indir_n
3810  *   Size of *handle* array. On return should be updated with number of
3811  *   indirect actions retrieved from the *actions* list.
3812  * @param[out] translated_actions
3813  *   List of actions where all indirect actions were translated to direct
3814  *   if possible. NULL if no translation took place.
3815  * @param[out] error
3816  *   Pointer to the error structure.
3817  *
3818  * @return
3819  *   0 on success, a negative errno value otherwise and rte_errno is set.
3820  */
3821 static int
3822 flow_action_handles_translate(struct rte_eth_dev *dev,
3823                               const struct rte_flow_action actions[],
3824                               struct mlx5_translated_action_handle *handle,
3825                               int *indir_n,
3826                               struct rte_flow_action **translated_actions,
3827                               struct rte_flow_error *error)
3828 {
3829         struct mlx5_priv *priv = dev->data->dev_private;
3830         struct rte_flow_action *translated = NULL;
3831         size_t actions_size;
3832         int n;
3833         int copied_n = 0;
3834         struct mlx5_translated_action_handle *handle_end = NULL;
3835
3836         for (n = 0; actions[n].type != RTE_FLOW_ACTION_TYPE_END; n++) {
3837                 if (actions[n].type != RTE_FLOW_ACTION_TYPE_INDIRECT)
3838                         continue;
3839                 if (copied_n == *indir_n) {
3840                         return rte_flow_error_set
3841                                 (error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION_NUM,
3842                                  NULL, "too many shared actions");
3843                 }
3844                 rte_memcpy(&handle[copied_n].action, &actions[n].conf,
3845                            sizeof(actions[n].conf));
3846                 handle[copied_n].index = n;
3847                 copied_n++;
3848         }
3849         n++;
3850         *indir_n = copied_n;
3851         if (!copied_n)
3852                 return 0;
3853         actions_size = sizeof(struct rte_flow_action) * n;
3854         translated = mlx5_malloc(MLX5_MEM_ZERO, actions_size, 0, SOCKET_ID_ANY);
3855         if (!translated) {
3856                 rte_errno = ENOMEM;
3857                 return -ENOMEM;
3858         }
3859         memcpy(translated, actions, actions_size);
3860         for (handle_end = handle + copied_n; handle < handle_end; handle++) {
3861                 struct mlx5_shared_action_rss *shared_rss;
3862                 uint32_t act_idx = (uint32_t)(uintptr_t)handle->action;
3863                 uint32_t type = act_idx >> MLX5_INDIRECT_ACTION_TYPE_OFFSET;
3864                 uint32_t idx = act_idx &
3865                                ((1u << MLX5_INDIRECT_ACTION_TYPE_OFFSET) - 1);
3866
3867                 switch (type) {
3868                 case MLX5_INDIRECT_ACTION_TYPE_RSS:
3869                         shared_rss = mlx5_ipool_get
3870                           (priv->sh->ipool[MLX5_IPOOL_RSS_SHARED_ACTIONS], idx);
3871                         translated[handle->index].type =
3872                                 RTE_FLOW_ACTION_TYPE_RSS;
3873                         translated[handle->index].conf =
3874                                 &shared_rss->origin;
3875                         break;
3876                 case MLX5_INDIRECT_ACTION_TYPE_COUNT:
3877                         translated[handle->index].type =
3878                                                 (enum rte_flow_action_type)
3879                                                 MLX5_RTE_FLOW_ACTION_TYPE_COUNT;
3880                         translated[handle->index].conf = (void *)(uintptr_t)idx;
3881                         break;
3882                 case MLX5_INDIRECT_ACTION_TYPE_AGE:
3883                         if (priv->sh->flow_hit_aso_en) {
3884                                 translated[handle->index].type =
3885                                         (enum rte_flow_action_type)
3886                                         MLX5_RTE_FLOW_ACTION_TYPE_AGE;
3887                                 translated[handle->index].conf =
3888                                                          (void *)(uintptr_t)idx;
3889                                 break;
3890                         }
3891                         /* Fall-through */
3892                 case MLX5_INDIRECT_ACTION_TYPE_CT:
3893                         if (priv->sh->ct_aso_en) {
3894                                 translated[handle->index].type =
3895                                         RTE_FLOW_ACTION_TYPE_CONNTRACK;
3896                                 translated[handle->index].conf =
3897                                                          (void *)(uintptr_t)idx;
3898                                 break;
3899                         }
3900                         /* Fall-through */
3901                 default:
3902                         mlx5_free(translated);
3903                         return rte_flow_error_set
3904                                 (error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION,
3905                                  NULL, "invalid indirect action type");
3906                 }
3907         }
3908         *translated_actions = translated;
3909         return 0;
3910 }
3911
3912 /**
3913  * Get Shared RSS action from the action list.
3914  *
3915  * @param[in] dev
3916  *   Pointer to Ethernet device.
3917  * @param[in] shared
3918  *   Pointer to the list of actions.
3919  * @param[in] shared_n
3920  *   Actions list length.
3921  *
3922  * @return
3923  *   The MLX5 RSS action ID if exists, otherwise return 0.
3924  */
3925 static uint32_t
3926 flow_get_shared_rss_action(struct rte_eth_dev *dev,
3927                            struct mlx5_translated_action_handle *handle,
3928                            int shared_n)
3929 {
3930         struct mlx5_translated_action_handle *handle_end;
3931         struct mlx5_priv *priv = dev->data->dev_private;
3932         struct mlx5_shared_action_rss *shared_rss;
3933
3934
3935         for (handle_end = handle + shared_n; handle < handle_end; handle++) {
3936                 uint32_t act_idx = (uint32_t)(uintptr_t)handle->action;
3937                 uint32_t type = act_idx >> MLX5_INDIRECT_ACTION_TYPE_OFFSET;
3938                 uint32_t idx = act_idx &
3939                                ((1u << MLX5_INDIRECT_ACTION_TYPE_OFFSET) - 1);
3940                 switch (type) {
3941                 case MLX5_INDIRECT_ACTION_TYPE_RSS:
3942                         shared_rss = mlx5_ipool_get
3943                                 (priv->sh->ipool[MLX5_IPOOL_RSS_SHARED_ACTIONS],
3944                                                                            idx);
3945                         __atomic_add_fetch(&shared_rss->refcnt, 1,
3946                                            __ATOMIC_RELAXED);
3947                         return idx;
3948                 default:
3949                         break;
3950                 }
3951         }
3952         return 0;
3953 }
3954
3955 static unsigned int
3956 find_graph_root(uint32_t rss_level)
3957 {
3958         return rss_level < 2 ? MLX5_EXPANSION_ROOT :
3959                                MLX5_EXPANSION_ROOT_OUTER;
3960 }
3961
3962 /**
3963  *  Get layer flags from the prefix flow.
3964  *
3965  *  Some flows may be split to several subflows, the prefix subflow gets the
3966  *  match items and the suffix sub flow gets the actions.
3967  *  Some actions need the user defined match item flags to get the detail for
3968  *  the action.
3969  *  This function helps the suffix flow to get the item layer flags from prefix
3970  *  subflow.
3971  *
3972  * @param[in] dev_flow
3973  *   Pointer the created prefix subflow.
3974  *
3975  * @return
3976  *   The layers get from prefix subflow.
3977  */
3978 static inline uint64_t
3979 flow_get_prefix_layer_flags(struct mlx5_flow *dev_flow)
3980 {
3981         uint64_t layers = 0;
3982
3983         /*
3984          * Layers bits could be localization, but usually the compiler will
3985          * help to do the optimization work for source code.
3986          * If no decap actions, use the layers directly.
3987          */
3988         if (!(dev_flow->act_flags & MLX5_FLOW_ACTION_DECAP))
3989                 return dev_flow->handle->layers;
3990         /* Convert L3 layers with decap action. */
3991         if (dev_flow->handle->layers & MLX5_FLOW_LAYER_INNER_L3_IPV4)
3992                 layers |= MLX5_FLOW_LAYER_OUTER_L3_IPV4;
3993         else if (dev_flow->handle->layers & MLX5_FLOW_LAYER_INNER_L3_IPV6)
3994                 layers |= MLX5_FLOW_LAYER_OUTER_L3_IPV6;
3995         /* Convert L4 layers with decap action.  */
3996         if (dev_flow->handle->layers & MLX5_FLOW_LAYER_INNER_L4_TCP)
3997                 layers |= MLX5_FLOW_LAYER_OUTER_L4_TCP;
3998         else if (dev_flow->handle->layers & MLX5_FLOW_LAYER_INNER_L4_UDP)
3999                 layers |= MLX5_FLOW_LAYER_OUTER_L4_UDP;
4000         return layers;
4001 }
4002
4003 /**
4004  * Get metadata split action information.
4005  *
4006  * @param[in] actions
4007  *   Pointer to the list of actions.
4008  * @param[out] qrss
4009  *   Pointer to the return pointer.
4010  * @param[out] qrss_type
4011  *   Pointer to the action type to return. RTE_FLOW_ACTION_TYPE_END is returned
4012  *   if no QUEUE/RSS is found.
4013  * @param[out] encap_idx
4014  *   Pointer to the index of the encap action if exists, otherwise the last
4015  *   action index.
4016  *
4017  * @return
4018  *   Total number of actions.
4019  */
4020 static int
4021 flow_parse_metadata_split_actions_info(const struct rte_flow_action actions[],
4022                                        const struct rte_flow_action **qrss,
4023                                        int *encap_idx)
4024 {
4025         const struct rte_flow_action_raw_encap *raw_encap;
4026         int actions_n = 0;
4027         int raw_decap_idx = -1;
4028
4029         *encap_idx = -1;
4030         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
4031                 switch (actions->type) {
4032                 case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
4033                 case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP:
4034                         *encap_idx = actions_n;
4035                         break;
4036                 case RTE_FLOW_ACTION_TYPE_RAW_DECAP:
4037                         raw_decap_idx = actions_n;
4038                         break;
4039                 case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
4040                         raw_encap = actions->conf;
4041                         if (raw_encap->size > MLX5_ENCAPSULATION_DECISION_SIZE)
4042                                 *encap_idx = raw_decap_idx != -1 ?
4043                                                       raw_decap_idx : actions_n;
4044                         break;
4045                 case RTE_FLOW_ACTION_TYPE_QUEUE:
4046                 case RTE_FLOW_ACTION_TYPE_RSS:
4047                         *qrss = actions;
4048                         break;
4049                 default:
4050                         break;
4051                 }
4052                 actions_n++;
4053         }
4054         if (*encap_idx == -1)
4055                 *encap_idx = actions_n;
4056         /* Count RTE_FLOW_ACTION_TYPE_END. */
4057         return actions_n + 1;
4058 }
4059
4060 /**
4061  * Check if the action will change packet.
4062  *
4063  * @param dev
4064  *   Pointer to Ethernet device.
4065  * @param[in] type
4066  *   action type.
4067  *
4068  * @return
4069  *   true if action will change packet, false otherwise.
4070  */
4071 static bool flow_check_modify_action_type(struct rte_eth_dev *dev,
4072                                           enum rte_flow_action_type type)
4073 {
4074         struct mlx5_priv *priv = dev->data->dev_private;
4075
4076         switch (type) {
4077         case RTE_FLOW_ACTION_TYPE_SET_MAC_SRC:
4078         case RTE_FLOW_ACTION_TYPE_SET_MAC_DST:
4079         case RTE_FLOW_ACTION_TYPE_SET_IPV4_SRC:
4080         case RTE_FLOW_ACTION_TYPE_SET_IPV4_DST:
4081         case RTE_FLOW_ACTION_TYPE_SET_IPV6_SRC:
4082         case RTE_FLOW_ACTION_TYPE_SET_IPV6_DST:
4083         case RTE_FLOW_ACTION_TYPE_SET_TP_SRC:
4084         case RTE_FLOW_ACTION_TYPE_SET_TP_DST:
4085         case RTE_FLOW_ACTION_TYPE_DEC_TTL:
4086         case RTE_FLOW_ACTION_TYPE_SET_TTL:
4087         case RTE_FLOW_ACTION_TYPE_INC_TCP_SEQ:
4088         case RTE_FLOW_ACTION_TYPE_DEC_TCP_SEQ:
4089         case RTE_FLOW_ACTION_TYPE_INC_TCP_ACK:
4090         case RTE_FLOW_ACTION_TYPE_DEC_TCP_ACK:
4091         case RTE_FLOW_ACTION_TYPE_SET_IPV4_DSCP:
4092         case RTE_FLOW_ACTION_TYPE_SET_IPV6_DSCP:
4093         case RTE_FLOW_ACTION_TYPE_SET_META:
4094         case RTE_FLOW_ACTION_TYPE_SET_TAG:
4095         case RTE_FLOW_ACTION_TYPE_OF_POP_VLAN:
4096         case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN:
4097         case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID:
4098         case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP:
4099         case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
4100         case RTE_FLOW_ACTION_TYPE_VXLAN_DECAP:
4101         case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP:
4102         case RTE_FLOW_ACTION_TYPE_NVGRE_DECAP:
4103         case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
4104         case RTE_FLOW_ACTION_TYPE_RAW_DECAP:
4105         case RTE_FLOW_ACTION_TYPE_MODIFY_FIELD:
4106                 return true;
4107         case RTE_FLOW_ACTION_TYPE_FLAG:
4108         case RTE_FLOW_ACTION_TYPE_MARK:
4109                 if (priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY)
4110                         return true;
4111                 else
4112                         return false;
4113         default:
4114                 return false;
4115         }
4116 }
4117
4118 /**
4119  * Check meter action from the action list.
4120  *
4121  * @param dev
4122  *   Pointer to Ethernet device.
4123  * @param[in] actions
4124  *   Pointer to the list of actions.
4125  * @param[out] has_mtr
4126  *   Pointer to the meter exist flag.
4127  * @param[out] has_modify
4128  *   Pointer to the flag showing there's packet change action.
4129  * @param[out] meter_id
4130  *   Pointer to the meter id.
4131  *
4132  * @return
4133  *   Total number of actions.
4134  */
4135 static int
4136 flow_check_meter_action(struct rte_eth_dev *dev,
4137                         const struct rte_flow_action actions[],
4138                         bool *has_mtr, bool *has_modify, uint32_t *meter_id)
4139 {
4140         const struct rte_flow_action_meter *mtr = NULL;
4141         int actions_n = 0;
4142
4143         MLX5_ASSERT(has_mtr);
4144         *has_mtr = false;
4145         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
4146                 switch (actions->type) {
4147                 case RTE_FLOW_ACTION_TYPE_METER:
4148                         mtr = actions->conf;
4149                         *meter_id = mtr->mtr_id;
4150                         *has_mtr = true;
4151                         break;
4152                 default:
4153                         break;
4154                 }
4155                 if (!*has_mtr)
4156                         *has_modify |= flow_check_modify_action_type(dev,
4157                                                                 actions->type);
4158                 actions_n++;
4159         }
4160         /* Count RTE_FLOW_ACTION_TYPE_END. */
4161         return actions_n + 1;
4162 }
4163
4164 /**
4165  * Check if the flow should be split due to hairpin.
4166  * The reason for the split is that in current HW we can't
4167  * support encap and push-vlan on Rx, so if a flow contains
4168  * these actions we move it to Tx.
4169  *
4170  * @param dev
4171  *   Pointer to Ethernet device.
4172  * @param[in] attr
4173  *   Flow rule attributes.
4174  * @param[in] actions
4175  *   Associated actions (list terminated by the END action).
4176  *
4177  * @return
4178  *   > 0 the number of actions and the flow should be split,
4179  *   0 when no split required.
4180  */
4181 static int
4182 flow_check_hairpin_split(struct rte_eth_dev *dev,
4183                          const struct rte_flow_attr *attr,
4184                          const struct rte_flow_action actions[])
4185 {
4186         int queue_action = 0;
4187         int action_n = 0;
4188         int split = 0;
4189         const struct rte_flow_action_queue *queue;
4190         const struct rte_flow_action_rss *rss;
4191         const struct rte_flow_action_raw_encap *raw_encap;
4192         const struct rte_eth_hairpin_conf *conf;
4193
4194         if (!attr->ingress)
4195                 return 0;
4196         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
4197                 switch (actions->type) {
4198                 case RTE_FLOW_ACTION_TYPE_QUEUE:
4199                         queue = actions->conf;
4200                         if (queue == NULL)
4201                                 return 0;
4202                         conf = mlx5_rxq_get_hairpin_conf(dev, queue->index);
4203                         if (conf == NULL || conf->tx_explicit != 0)
4204                                 return 0;
4205                         queue_action = 1;
4206                         action_n++;
4207                         break;
4208                 case RTE_FLOW_ACTION_TYPE_RSS:
4209                         rss = actions->conf;
4210                         if (rss == NULL || rss->queue_num == 0)
4211                                 return 0;
4212                         conf = mlx5_rxq_get_hairpin_conf(dev, rss->queue[0]);
4213                         if (conf == NULL || conf->tx_explicit != 0)
4214                                 return 0;
4215                         queue_action = 1;
4216                         action_n++;
4217                         break;
4218                 case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
4219                 case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP:
4220                 case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN:
4221                 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID:
4222                 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP:
4223                         split++;
4224                         action_n++;
4225                         break;
4226                 case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
4227                         raw_encap = actions->conf;
4228                         if (raw_encap->size > MLX5_ENCAPSULATION_DECISION_SIZE)
4229                                 split++;
4230                         action_n++;
4231                         break;
4232                 default:
4233                         action_n++;
4234                         break;
4235                 }
4236         }
4237         if (split && queue_action)
4238                 return action_n;
4239         return 0;
4240 }
4241
4242 /* Declare flow create/destroy prototype in advance. */
4243 static uint32_t
4244 flow_list_create(struct rte_eth_dev *dev, enum mlx5_flow_type type,
4245                  const struct rte_flow_attr *attr,
4246                  const struct rte_flow_item items[],
4247                  const struct rte_flow_action actions[],
4248                  bool external, struct rte_flow_error *error);
4249
4250 static void
4251 flow_list_destroy(struct rte_eth_dev *dev, enum mlx5_flow_type type,
4252                   uint32_t flow_idx);
4253
4254 int
4255 flow_dv_mreg_match_cb(void *tool_ctx __rte_unused,
4256                       struct mlx5_list_entry *entry, void *cb_ctx)
4257 {
4258         struct mlx5_flow_cb_ctx *ctx = cb_ctx;
4259         struct mlx5_flow_mreg_copy_resource *mcp_res =
4260                                container_of(entry, typeof(*mcp_res), hlist_ent);
4261
4262         return mcp_res->mark_id != *(uint32_t *)(ctx->data);
4263 }
4264
4265 struct mlx5_list_entry *
4266 flow_dv_mreg_create_cb(void *tool_ctx, void *cb_ctx)
4267 {
4268         struct rte_eth_dev *dev = tool_ctx;
4269         struct mlx5_priv *priv = dev->data->dev_private;
4270         struct mlx5_flow_cb_ctx *ctx = cb_ctx;
4271         struct mlx5_flow_mreg_copy_resource *mcp_res;
4272         struct rte_flow_error *error = ctx->error;
4273         uint32_t idx = 0;
4274         int ret;
4275         uint32_t mark_id = *(uint32_t *)(ctx->data);
4276         struct rte_flow_attr attr = {
4277                 .group = MLX5_FLOW_MREG_CP_TABLE_GROUP,
4278                 .ingress = 1,
4279         };
4280         struct mlx5_rte_flow_item_tag tag_spec = {
4281                 .data = mark_id,
4282         };
4283         struct rte_flow_item items[] = {
4284                 [1] = { .type = RTE_FLOW_ITEM_TYPE_END, },
4285         };
4286         struct rte_flow_action_mark ftag = {
4287                 .id = mark_id,
4288         };
4289         struct mlx5_flow_action_copy_mreg cp_mreg = {
4290                 .dst = REG_B,
4291                 .src = REG_NON,
4292         };
4293         struct rte_flow_action_jump jump = {
4294                 .group = MLX5_FLOW_MREG_ACT_TABLE_GROUP,
4295         };
4296         struct rte_flow_action actions[] = {
4297                 [3] = { .type = RTE_FLOW_ACTION_TYPE_END, },
4298         };
4299
4300         /* Fill the register fields in the flow. */
4301         ret = mlx5_flow_get_reg_id(dev, MLX5_FLOW_MARK, 0, error);
4302         if (ret < 0)
4303                 return NULL;
4304         tag_spec.id = ret;
4305         ret = mlx5_flow_get_reg_id(dev, MLX5_METADATA_RX, 0, error);
4306         if (ret < 0)
4307                 return NULL;
4308         cp_mreg.src = ret;
4309         /* Provide the full width of FLAG specific value. */
4310         if (mark_id == (priv->sh->dv_regc0_mask & MLX5_FLOW_MARK_DEFAULT))
4311                 tag_spec.data = MLX5_FLOW_MARK_DEFAULT;
4312         /* Build a new flow. */
4313         if (mark_id != MLX5_DEFAULT_COPY_ID) {
4314                 items[0] = (struct rte_flow_item){
4315                         .type = (enum rte_flow_item_type)
4316                                 MLX5_RTE_FLOW_ITEM_TYPE_TAG,
4317                         .spec = &tag_spec,
4318                 };
4319                 items[1] = (struct rte_flow_item){
4320                         .type = RTE_FLOW_ITEM_TYPE_END,
4321                 };
4322                 actions[0] = (struct rte_flow_action){
4323                         .type = (enum rte_flow_action_type)
4324                                 MLX5_RTE_FLOW_ACTION_TYPE_MARK,
4325                         .conf = &ftag,
4326                 };
4327                 actions[1] = (struct rte_flow_action){
4328                         .type = (enum rte_flow_action_type)
4329                                 MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
4330                         .conf = &cp_mreg,
4331                 };
4332                 actions[2] = (struct rte_flow_action){
4333                         .type = RTE_FLOW_ACTION_TYPE_JUMP,
4334                         .conf = &jump,
4335                 };
4336                 actions[3] = (struct rte_flow_action){
4337                         .type = RTE_FLOW_ACTION_TYPE_END,
4338                 };
4339         } else {
4340                 /* Default rule, wildcard match. */
4341                 attr.priority = MLX5_FLOW_LOWEST_PRIO_INDICATOR;
4342                 items[0] = (struct rte_flow_item){
4343                         .type = RTE_FLOW_ITEM_TYPE_END,
4344                 };
4345                 actions[0] = (struct rte_flow_action){
4346                         .type = (enum rte_flow_action_type)
4347                                 MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
4348                         .conf = &cp_mreg,
4349                 };
4350                 actions[1] = (struct rte_flow_action){
4351                         .type = RTE_FLOW_ACTION_TYPE_JUMP,
4352                         .conf = &jump,
4353                 };
4354                 actions[2] = (struct rte_flow_action){
4355                         .type = RTE_FLOW_ACTION_TYPE_END,
4356                 };
4357         }
4358         /* Build a new entry. */
4359         mcp_res = mlx5_ipool_zmalloc(priv->sh->ipool[MLX5_IPOOL_MCP], &idx);
4360         if (!mcp_res) {
4361                 rte_errno = ENOMEM;
4362                 return NULL;
4363         }
4364         mcp_res->idx = idx;
4365         mcp_res->mark_id = mark_id;
4366         /*
4367          * The copy Flows are not included in any list. There
4368          * ones are referenced from other Flows and can not
4369          * be applied, removed, deleted in arbitrary order
4370          * by list traversing.
4371          */
4372         mcp_res->rix_flow = flow_list_create(dev, MLX5_FLOW_TYPE_MCP,
4373                                         &attr, items, actions, false, error);
4374         if (!mcp_res->rix_flow) {
4375                 mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_MCP], idx);
4376                 return NULL;
4377         }
4378         return &mcp_res->hlist_ent;
4379 }
4380
4381 struct mlx5_list_entry *
4382 flow_dv_mreg_clone_cb(void *tool_ctx, struct mlx5_list_entry *oentry,
4383                       void *cb_ctx __rte_unused)
4384 {
4385         struct rte_eth_dev *dev = tool_ctx;
4386         struct mlx5_priv *priv = dev->data->dev_private;
4387         struct mlx5_flow_mreg_copy_resource *mcp_res;
4388         uint32_t idx = 0;
4389
4390         mcp_res = mlx5_ipool_malloc(priv->sh->ipool[MLX5_IPOOL_MCP], &idx);
4391         if (!mcp_res) {
4392                 rte_errno = ENOMEM;
4393                 return NULL;
4394         }
4395         memcpy(mcp_res, oentry, sizeof(*mcp_res));
4396         mcp_res->idx = idx;
4397         return &mcp_res->hlist_ent;
4398 }
4399
4400 void
4401 flow_dv_mreg_clone_free_cb(void *tool_ctx, struct mlx5_list_entry *entry)
4402 {
4403         struct mlx5_flow_mreg_copy_resource *mcp_res =
4404                                container_of(entry, typeof(*mcp_res), hlist_ent);
4405         struct rte_eth_dev *dev = tool_ctx;
4406         struct mlx5_priv *priv = dev->data->dev_private;
4407
4408         mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_MCP], mcp_res->idx);
4409 }
4410
4411 /**
4412  * Add a flow of copying flow metadata registers in RX_CP_TBL.
4413  *
4414  * As mark_id is unique, if there's already a registered flow for the mark_id,
4415  * return by increasing the reference counter of the resource. Otherwise, create
4416  * the resource (mcp_res) and flow.
4417  *
4418  * Flow looks like,
4419  *   - If ingress port is ANY and reg_c[1] is mark_id,
4420  *     flow_tag := mark_id, reg_b := reg_c[0] and jump to RX_ACT_TBL.
4421  *
4422  * For default flow (zero mark_id), flow is like,
4423  *   - If ingress port is ANY,
4424  *     reg_b := reg_c[0] and jump to RX_ACT_TBL.
4425  *
4426  * @param dev
4427  *   Pointer to Ethernet device.
4428  * @param mark_id
4429  *   ID of MARK action, zero means default flow for META.
4430  * @param[out] error
4431  *   Perform verbose error reporting if not NULL.
4432  *
4433  * @return
4434  *   Associated resource on success, NULL otherwise and rte_errno is set.
4435  */
4436 static struct mlx5_flow_mreg_copy_resource *
4437 flow_mreg_add_copy_action(struct rte_eth_dev *dev, uint32_t mark_id,
4438                           struct rte_flow_error *error)
4439 {
4440         struct mlx5_priv *priv = dev->data->dev_private;
4441         struct mlx5_list_entry *entry;
4442         struct mlx5_flow_cb_ctx ctx = {
4443                 .dev = dev,
4444                 .error = error,
4445                 .data = &mark_id,
4446         };
4447
4448         /* Check if already registered. */
4449         MLX5_ASSERT(priv->mreg_cp_tbl);
4450         entry = mlx5_hlist_register(priv->mreg_cp_tbl, mark_id, &ctx);
4451         if (!entry)
4452                 return NULL;
4453         return container_of(entry, struct mlx5_flow_mreg_copy_resource,
4454                             hlist_ent);
4455 }
4456
4457 void
4458 flow_dv_mreg_remove_cb(void *tool_ctx, struct mlx5_list_entry *entry)
4459 {
4460         struct mlx5_flow_mreg_copy_resource *mcp_res =
4461                                container_of(entry, typeof(*mcp_res), hlist_ent);
4462         struct rte_eth_dev *dev = tool_ctx;
4463         struct mlx5_priv *priv = dev->data->dev_private;
4464
4465         MLX5_ASSERT(mcp_res->rix_flow);
4466         flow_list_destroy(dev, MLX5_FLOW_TYPE_MCP, mcp_res->rix_flow);
4467         mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_MCP], mcp_res->idx);
4468 }
4469
4470 /**
4471  * Release flow in RX_CP_TBL.
4472  *
4473  * @param dev
4474  *   Pointer to Ethernet device.
4475  * @flow
4476  *   Parent flow for wich copying is provided.
4477  */
4478 static void
4479 flow_mreg_del_copy_action(struct rte_eth_dev *dev,
4480                           struct rte_flow *flow)
4481 {
4482         struct mlx5_flow_mreg_copy_resource *mcp_res;
4483         struct mlx5_priv *priv = dev->data->dev_private;
4484
4485         if (!flow->rix_mreg_copy)
4486                 return;
4487         mcp_res = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_MCP],
4488                                  flow->rix_mreg_copy);
4489         if (!mcp_res || !priv->mreg_cp_tbl)
4490                 return;
4491         MLX5_ASSERT(mcp_res->rix_flow);
4492         mlx5_hlist_unregister(priv->mreg_cp_tbl, &mcp_res->hlist_ent);
4493         flow->rix_mreg_copy = 0;
4494 }
4495
4496 /**
4497  * Remove the default copy action from RX_CP_TBL.
4498  *
4499  * This functions is called in the mlx5_dev_start(). No thread safe
4500  * is guaranteed.
4501  *
4502  * @param dev
4503  *   Pointer to Ethernet device.
4504  */
4505 static void
4506 flow_mreg_del_default_copy_action(struct rte_eth_dev *dev)
4507 {
4508         struct mlx5_list_entry *entry;
4509         struct mlx5_priv *priv = dev->data->dev_private;
4510         struct mlx5_flow_cb_ctx ctx;
4511         uint32_t mark_id;
4512
4513         /* Check if default flow is registered. */
4514         if (!priv->mreg_cp_tbl)
4515                 return;
4516         mark_id = MLX5_DEFAULT_COPY_ID;
4517         ctx.data = &mark_id;
4518         entry = mlx5_hlist_lookup(priv->mreg_cp_tbl, mark_id, &ctx);
4519         if (!entry)
4520                 return;
4521         mlx5_hlist_unregister(priv->mreg_cp_tbl, entry);
4522 }
4523
4524 /**
4525  * Add the default copy action in in RX_CP_TBL.
4526  *
4527  * This functions is called in the mlx5_dev_start(). No thread safe
4528  * is guaranteed.
4529  *
4530  * @param dev
4531  *   Pointer to Ethernet device.
4532  * @param[out] error
4533  *   Perform verbose error reporting if not NULL.
4534  *
4535  * @return
4536  *   0 for success, negative value otherwise and rte_errno is set.
4537  */
4538 static int
4539 flow_mreg_add_default_copy_action(struct rte_eth_dev *dev,
4540                                   struct rte_flow_error *error)
4541 {
4542         struct mlx5_priv *priv = dev->data->dev_private;
4543         struct mlx5_flow_mreg_copy_resource *mcp_res;
4544         struct mlx5_flow_cb_ctx ctx;
4545         uint32_t mark_id;
4546
4547         /* Check whether extensive metadata feature is engaged. */
4548         if (!priv->config.dv_flow_en ||
4549             priv->config.dv_xmeta_en == MLX5_XMETA_MODE_LEGACY ||
4550             !mlx5_flow_ext_mreg_supported(dev) ||
4551             !priv->sh->dv_regc0_mask)
4552                 return 0;
4553         /*
4554          * Add default mreg copy flow may be called multiple time, but
4555          * only be called once in stop. Avoid register it twice.
4556          */
4557         mark_id = MLX5_DEFAULT_COPY_ID;
4558         ctx.data = &mark_id;
4559         if (mlx5_hlist_lookup(priv->mreg_cp_tbl, mark_id, &ctx))
4560                 return 0;
4561         mcp_res = flow_mreg_add_copy_action(dev, mark_id, error);
4562         if (!mcp_res)
4563                 return -rte_errno;
4564         return 0;
4565 }
4566
4567 /**
4568  * Add a flow of copying flow metadata registers in RX_CP_TBL.
4569  *
4570  * All the flow having Q/RSS action should be split by
4571  * flow_mreg_split_qrss_prep() to pass by RX_CP_TBL. A flow in the RX_CP_TBL
4572  * performs the following,
4573  *   - CQE->flow_tag := reg_c[1] (MARK)
4574  *   - CQE->flow_table_metadata (reg_b) := reg_c[0] (META)
4575  * As CQE's flow_tag is not a register, it can't be simply copied from reg_c[1]
4576  * but there should be a flow per each MARK ID set by MARK action.
4577  *
4578  * For the aforementioned reason, if there's a MARK action in flow's action
4579  * list, a corresponding flow should be added to the RX_CP_TBL in order to copy
4580  * the MARK ID to CQE's flow_tag like,
4581  *   - If reg_c[1] is mark_id,
4582  *     flow_tag := mark_id, reg_b := reg_c[0] and jump to RX_ACT_TBL.
4583  *
4584  * For SET_META action which stores value in reg_c[0], as the destination is
4585  * also a flow metadata register (reg_b), adding a default flow is enough. Zero
4586  * MARK ID means the default flow. The default flow looks like,
4587  *   - For all flow, reg_b := reg_c[0] and jump to RX_ACT_TBL.
4588  *
4589  * @param dev
4590  *   Pointer to Ethernet device.
4591  * @param flow
4592  *   Pointer to flow structure.
4593  * @param[in] actions
4594  *   Pointer to the list of actions.
4595  * @param[out] error
4596  *   Perform verbose error reporting if not NULL.
4597  *
4598  * @return
4599  *   0 on success, negative value otherwise and rte_errno is set.
4600  */
4601 static int
4602 flow_mreg_update_copy_table(struct rte_eth_dev *dev,
4603                             struct rte_flow *flow,
4604                             const struct rte_flow_action *actions,
4605                             struct rte_flow_error *error)
4606 {
4607         struct mlx5_priv *priv = dev->data->dev_private;
4608         struct mlx5_dev_config *config = &priv->config;
4609         struct mlx5_flow_mreg_copy_resource *mcp_res;
4610         const struct rte_flow_action_mark *mark;
4611
4612         /* Check whether extensive metadata feature is engaged. */
4613         if (!config->dv_flow_en ||
4614             config->dv_xmeta_en == MLX5_XMETA_MODE_LEGACY ||
4615             !mlx5_flow_ext_mreg_supported(dev) ||
4616             !priv->sh->dv_regc0_mask)
4617                 return 0;
4618         /* Find MARK action. */
4619         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
4620                 switch (actions->type) {
4621                 case RTE_FLOW_ACTION_TYPE_FLAG:
4622                         mcp_res = flow_mreg_add_copy_action
4623                                 (dev, MLX5_FLOW_MARK_DEFAULT, error);
4624                         if (!mcp_res)
4625                                 return -rte_errno;
4626                         flow->rix_mreg_copy = mcp_res->idx;
4627                         return 0;
4628                 case RTE_FLOW_ACTION_TYPE_MARK:
4629                         mark = (const struct rte_flow_action_mark *)
4630                                 actions->conf;
4631                         mcp_res =
4632                                 flow_mreg_add_copy_action(dev, mark->id, error);
4633                         if (!mcp_res)
4634                                 return -rte_errno;
4635                         flow->rix_mreg_copy = mcp_res->idx;
4636                         return 0;
4637                 default:
4638                         break;
4639                 }
4640         }
4641         return 0;
4642 }
4643
4644 #define MLX5_MAX_SPLIT_ACTIONS 24
4645 #define MLX5_MAX_SPLIT_ITEMS 24
4646
4647 /**
4648  * Split the hairpin flow.
4649  * Since HW can't support encap and push-vlan on Rx, we move these
4650  * actions to Tx.
4651  * If the count action is after the encap then we also
4652  * move the count action. in this case the count will also measure
4653  * the outer bytes.
4654  *
4655  * @param dev
4656  *   Pointer to Ethernet device.
4657  * @param[in] actions
4658  *   Associated actions (list terminated by the END action).
4659  * @param[out] actions_rx
4660  *   Rx flow actions.
4661  * @param[out] actions_tx
4662  *   Tx flow actions..
4663  * @param[out] pattern_tx
4664  *   The pattern items for the Tx flow.
4665  * @param[out] flow_id
4666  *   The flow ID connected to this flow.
4667  *
4668  * @return
4669  *   0 on success.
4670  */
4671 static int
4672 flow_hairpin_split(struct rte_eth_dev *dev,
4673                    const struct rte_flow_action actions[],
4674                    struct rte_flow_action actions_rx[],
4675                    struct rte_flow_action actions_tx[],
4676                    struct rte_flow_item pattern_tx[],
4677                    uint32_t flow_id)
4678 {
4679         const struct rte_flow_action_raw_encap *raw_encap;
4680         const struct rte_flow_action_raw_decap *raw_decap;
4681         struct mlx5_rte_flow_action_set_tag *set_tag;
4682         struct rte_flow_action *tag_action;
4683         struct mlx5_rte_flow_item_tag *tag_item;
4684         struct rte_flow_item *item;
4685         char *addr;
4686         int encap = 0;
4687
4688         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
4689                 switch (actions->type) {
4690                 case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
4691                 case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP:
4692                 case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN:
4693                 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID:
4694                 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP:
4695                         rte_memcpy(actions_tx, actions,
4696                                sizeof(struct rte_flow_action));
4697                         actions_tx++;
4698                         break;
4699                 case RTE_FLOW_ACTION_TYPE_COUNT:
4700                         if (encap) {
4701                                 rte_memcpy(actions_tx, actions,
4702                                            sizeof(struct rte_flow_action));
4703                                 actions_tx++;
4704                         } else {
4705                                 rte_memcpy(actions_rx, actions,
4706                                            sizeof(struct rte_flow_action));
4707                                 actions_rx++;
4708                         }
4709                         break;
4710                 case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
4711                         raw_encap = actions->conf;
4712                         if (raw_encap->size > MLX5_ENCAPSULATION_DECISION_SIZE) {
4713                                 memcpy(actions_tx, actions,
4714                                        sizeof(struct rte_flow_action));
4715                                 actions_tx++;
4716                                 encap = 1;
4717                         } else {
4718                                 rte_memcpy(actions_rx, actions,
4719                                            sizeof(struct rte_flow_action));
4720                                 actions_rx++;
4721                         }
4722                         break;
4723                 case RTE_FLOW_ACTION_TYPE_RAW_DECAP:
4724                         raw_decap = actions->conf;
4725                         if (raw_decap->size < MLX5_ENCAPSULATION_DECISION_SIZE) {
4726                                 memcpy(actions_tx, actions,
4727                                        sizeof(struct rte_flow_action));
4728                                 actions_tx++;
4729                         } else {
4730                                 rte_memcpy(actions_rx, actions,
4731                                            sizeof(struct rte_flow_action));
4732                                 actions_rx++;
4733                         }
4734                         break;
4735                 default:
4736                         rte_memcpy(actions_rx, actions,
4737                                    sizeof(struct rte_flow_action));
4738                         actions_rx++;
4739                         break;
4740                 }
4741         }
4742         /* Add set meta action and end action for the Rx flow. */
4743         tag_action = actions_rx;
4744         tag_action->type = (enum rte_flow_action_type)
4745                            MLX5_RTE_FLOW_ACTION_TYPE_TAG;
4746         actions_rx++;
4747         rte_memcpy(actions_rx, actions, sizeof(struct rte_flow_action));
4748         actions_rx++;
4749         set_tag = (void *)actions_rx;
4750         *set_tag = (struct mlx5_rte_flow_action_set_tag) {
4751                 .id = mlx5_flow_get_reg_id(dev, MLX5_HAIRPIN_RX, 0, NULL),
4752                 .data = flow_id,
4753         };
4754         MLX5_ASSERT(set_tag->id > REG_NON);
4755         tag_action->conf = set_tag;
4756         /* Create Tx item list. */
4757         rte_memcpy(actions_tx, actions, sizeof(struct rte_flow_action));
4758         addr = (void *)&pattern_tx[2];
4759         item = pattern_tx;
4760         item->type = (enum rte_flow_item_type)
4761                      MLX5_RTE_FLOW_ITEM_TYPE_TAG;
4762         tag_item = (void *)addr;
4763         tag_item->data = flow_id;
4764         tag_item->id = mlx5_flow_get_reg_id(dev, MLX5_HAIRPIN_TX, 0, NULL);
4765         MLX5_ASSERT(set_tag->id > REG_NON);
4766         item->spec = tag_item;
4767         addr += sizeof(struct mlx5_rte_flow_item_tag);
4768         tag_item = (void *)addr;
4769         tag_item->data = UINT32_MAX;
4770         tag_item->id = UINT16_MAX;
4771         item->mask = tag_item;
4772         item->last = NULL;
4773         item++;
4774         item->type = RTE_FLOW_ITEM_TYPE_END;
4775         return 0;
4776 }
4777
4778 /**
4779  * The last stage of splitting chain, just creates the subflow
4780  * without any modification.
4781  *
4782  * @param[in] dev
4783  *   Pointer to Ethernet device.
4784  * @param[in] flow
4785  *   Parent flow structure pointer.
4786  * @param[in, out] sub_flow
4787  *   Pointer to return the created subflow, may be NULL.
4788  * @param[in] attr
4789  *   Flow rule attributes.
4790  * @param[in] items
4791  *   Pattern specification (list terminated by the END pattern item).
4792  * @param[in] actions
4793  *   Associated actions (list terminated by the END action).
4794  * @param[in] flow_split_info
4795  *   Pointer to flow split info structure.
4796  * @param[out] error
4797  *   Perform verbose error reporting if not NULL.
4798  * @return
4799  *   0 on success, negative value otherwise
4800  */
4801 static int
4802 flow_create_split_inner(struct rte_eth_dev *dev,
4803                         struct rte_flow *flow,
4804                         struct mlx5_flow **sub_flow,
4805                         const struct rte_flow_attr *attr,
4806                         const struct rte_flow_item items[],
4807                         const struct rte_flow_action actions[],
4808                         struct mlx5_flow_split_info *flow_split_info,
4809                         struct rte_flow_error *error)
4810 {
4811         struct mlx5_flow *dev_flow;
4812         struct mlx5_flow_workspace *wks = mlx5_flow_get_thread_workspace();
4813
4814         dev_flow = flow_drv_prepare(dev, flow, attr, items, actions,
4815                                     flow_split_info->flow_idx, error);
4816         if (!dev_flow)
4817                 return -rte_errno;
4818         dev_flow->flow = flow;
4819         dev_flow->external = flow_split_info->external;
4820         dev_flow->skip_scale = flow_split_info->skip_scale;
4821         /* Subflow object was created, we must include one in the list. */
4822         SILIST_INSERT(&flow->dev_handles, dev_flow->handle_idx,
4823                       dev_flow->handle, next);
4824         /*
4825          * If dev_flow is as one of the suffix flow, some actions in suffix
4826          * flow may need some user defined item layer flags, and pass the
4827          * Metadata rxq mark flag to suffix flow as well.
4828          */
4829         if (flow_split_info->prefix_layers)
4830                 dev_flow->handle->layers = flow_split_info->prefix_layers;
4831         if (flow_split_info->prefix_mark) {
4832                 MLX5_ASSERT(wks);
4833                 wks->mark = 1;
4834         }
4835         if (sub_flow)
4836                 *sub_flow = dev_flow;
4837 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
4838         dev_flow->dv.table_id = flow_split_info->table_id;
4839 #endif
4840         return flow_drv_translate(dev, dev_flow, attr, items, actions, error);
4841 }
4842
4843 /**
4844  * Get the sub policy of a meter.
4845  *
4846  * @param[in] dev
4847  *   Pointer to Ethernet device.
4848  * @param[in] flow
4849  *   Parent flow structure pointer.
4850  * @param wks
4851  *   Pointer to thread flow work space.
4852  * @param[in] attr
4853  *   Flow rule attributes.
4854  * @param[in] items
4855  *   Pattern specification (list terminated by the END pattern item).
4856  * @param[out] error
4857  *   Perform verbose error reporting if not NULL.
4858  *
4859  * @return
4860  *   Pointer to the meter sub policy, NULL otherwise and rte_errno is set.
4861  */
4862 static struct mlx5_flow_meter_sub_policy *
4863 get_meter_sub_policy(struct rte_eth_dev *dev,
4864                      struct rte_flow *flow,
4865                      struct mlx5_flow_workspace *wks,
4866                      const struct rte_flow_attr *attr,
4867                      const struct rte_flow_item items[],
4868                      struct rte_flow_error *error)
4869 {
4870         struct mlx5_flow_meter_policy *policy;
4871         struct mlx5_flow_meter_policy *final_policy;
4872         struct mlx5_flow_meter_sub_policy *sub_policy = NULL;
4873
4874         policy = wks->policy;
4875         final_policy = policy->is_hierarchy ? wks->final_policy : policy;
4876         if (final_policy->is_rss || final_policy->is_queue) {
4877                 struct mlx5_flow_rss_desc rss_desc_v[MLX5_MTR_RTE_COLORS];
4878                 struct mlx5_flow_rss_desc *rss_desc[MLX5_MTR_RTE_COLORS] = {0};
4879                 uint32_t i;
4880
4881                 /*
4882                  * This is a tmp dev_flow,
4883                  * no need to register any matcher for it in translate.
4884                  */
4885                 wks->skip_matcher_reg = 1;
4886                 for (i = 0; i < MLX5_MTR_RTE_COLORS; i++) {
4887                         struct mlx5_flow dev_flow = {0};
4888                         struct mlx5_flow_handle dev_handle = { {0} };
4889                         uint8_t fate = final_policy->act_cnt[i].fate_action;
4890
4891                         if (fate == MLX5_FLOW_FATE_SHARED_RSS) {
4892                                 const struct rte_flow_action_rss *rss_act =
4893                                         final_policy->act_cnt[i].rss->conf;
4894                                 struct rte_flow_action rss_actions[2] = {
4895                                         [0] = {
4896                                         .type = RTE_FLOW_ACTION_TYPE_RSS,
4897                                         .conf = rss_act,
4898                                         },
4899                                         [1] = {
4900                                         .type = RTE_FLOW_ACTION_TYPE_END,
4901                                         .conf = NULL,
4902                                         }
4903                                 };
4904
4905                                 dev_flow.handle = &dev_handle;
4906                                 dev_flow.ingress = attr->ingress;
4907                                 dev_flow.flow = flow;
4908                                 dev_flow.external = 0;
4909 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
4910                                 dev_flow.dv.transfer = attr->transfer;
4911 #endif
4912                                 /**
4913                                  * Translate RSS action to get rss hash fields.
4914                                  */
4915                                 if (flow_drv_translate(dev, &dev_flow, attr,
4916                                                 items, rss_actions, error))
4917                                         goto exit;
4918                                 rss_desc_v[i] = wks->rss_desc;
4919                                 rss_desc_v[i].key_len = MLX5_RSS_HASH_KEY_LEN;
4920                                 rss_desc_v[i].hash_fields =
4921                                                 dev_flow.hash_fields;
4922                                 rss_desc_v[i].queue_num =
4923                                                 rss_desc_v[i].hash_fields ?
4924                                                 rss_desc_v[i].queue_num : 1;
4925                                 rss_desc_v[i].tunnel =
4926                                                 !!(dev_flow.handle->layers &
4927                                                    MLX5_FLOW_LAYER_TUNNEL);
4928                                 /* Use the RSS queues in the containers. */
4929                                 rss_desc_v[i].queue =
4930                                         (uint16_t *)(uintptr_t)rss_act->queue;
4931                                 rss_desc[i] = &rss_desc_v[i];
4932                         } else if (fate == MLX5_FLOW_FATE_QUEUE) {
4933                                 /* This is queue action. */
4934                                 rss_desc_v[i] = wks->rss_desc;
4935                                 rss_desc_v[i].key_len = 0;
4936                                 rss_desc_v[i].hash_fields = 0;
4937                                 rss_desc_v[i].queue =
4938                                         &final_policy->act_cnt[i].queue;
4939                                 rss_desc_v[i].queue_num = 1;
4940                                 rss_desc[i] = &rss_desc_v[i];
4941                         } else {
4942                                 rss_desc[i] = NULL;
4943                         }
4944                 }
4945                 sub_policy = flow_drv_meter_sub_policy_rss_prepare(dev,
4946                                                 flow, policy, rss_desc);
4947         } else {
4948                 enum mlx5_meter_domain mtr_domain =
4949                         attr->transfer ? MLX5_MTR_DOMAIN_TRANSFER :
4950                                 (attr->egress ? MLX5_MTR_DOMAIN_EGRESS :
4951                                                 MLX5_MTR_DOMAIN_INGRESS);
4952                 sub_policy = policy->sub_policys[mtr_domain][0];
4953         }
4954         if (!sub_policy)
4955                 rte_flow_error_set(error, EINVAL,
4956                                    RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
4957                                    "Failed to get meter sub-policy.");
4958 exit:
4959         return sub_policy;
4960 }
4961
4962 /**
4963  * Split the meter flow.
4964  *
4965  * As meter flow will split to three sub flow, other than meter
4966  * action, the other actions make sense to only meter accepts
4967  * the packet. If it need to be dropped, no other additional
4968  * actions should be take.
4969  *
4970  * One kind of special action which decapsulates the L3 tunnel
4971  * header will be in the prefix sub flow, as not to take the
4972  * L3 tunnel header into account.
4973  *
4974  * @param[in] dev
4975  *   Pointer to Ethernet device.
4976  * @param[in] flow
4977  *   Parent flow structure pointer.
4978  * @param wks
4979  *   Pointer to thread flow work space.
4980  * @param[in] attr
4981  *   Flow rule attributes.
4982  * @param[in] items
4983  *   Pattern specification (list terminated by the END pattern item).
4984  * @param[out] sfx_items
4985  *   Suffix flow match items (list terminated by the END pattern item).
4986  * @param[in] actions
4987  *   Associated actions (list terminated by the END action).
4988  * @param[out] actions_sfx
4989  *   Suffix flow actions.
4990  * @param[out] actions_pre
4991  *   Prefix flow actions.
4992  * @param[out] mtr_flow_id
4993  *   Pointer to meter flow id.
4994  * @param[out] error
4995  *   Perform verbose error reporting if not NULL.
4996  *
4997  * @return
4998  *   0 on success, a negative errno value otherwise and rte_errno is set.
4999  */
5000 static int
5001 flow_meter_split_prep(struct rte_eth_dev *dev,
5002                       struct rte_flow *flow,
5003                       struct mlx5_flow_workspace *wks,
5004                       const struct rte_flow_attr *attr,
5005                       const struct rte_flow_item items[],
5006                       struct rte_flow_item sfx_items[],
5007                       const struct rte_flow_action actions[],
5008                       struct rte_flow_action actions_sfx[],
5009                       struct rte_flow_action actions_pre[],
5010                       uint32_t *mtr_flow_id,
5011                       struct rte_flow_error *error)
5012 {
5013         struct mlx5_priv *priv = dev->data->dev_private;
5014         struct mlx5_flow_meter_info *fm = wks->fm;
5015         struct rte_flow_action *tag_action = NULL;
5016         struct rte_flow_item *tag_item;
5017         struct mlx5_rte_flow_action_set_tag *set_tag;
5018         const struct rte_flow_action_raw_encap *raw_encap;
5019         const struct rte_flow_action_raw_decap *raw_decap;
5020         struct mlx5_rte_flow_item_tag *tag_item_spec;
5021         struct mlx5_rte_flow_item_tag *tag_item_mask;
5022         uint32_t tag_id = 0;
5023         struct rte_flow_item *vlan_item_dst = NULL;
5024         const struct rte_flow_item *vlan_item_src = NULL;
5025         struct rte_flow_action *hw_mtr_action;
5026         struct rte_flow_action *action_pre_head = NULL;
5027         int32_t flow_src_port = priv->representor_id;
5028         bool mtr_first;
5029         uint8_t mtr_id_offset = priv->mtr_reg_share ? MLX5_MTR_COLOR_BITS : 0;
5030         uint8_t mtr_reg_bits = priv->mtr_reg_share ?
5031                                 MLX5_MTR_IDLE_BITS_IN_COLOR_REG : MLX5_REG_BITS;
5032         uint32_t flow_id = 0;
5033         uint32_t flow_id_reversed = 0;
5034         uint8_t flow_id_bits = 0;
5035         int shift;
5036
5037         /* Prepare the suffix subflow items. */
5038         tag_item = sfx_items++;
5039         for (; items->type != RTE_FLOW_ITEM_TYPE_END; items++) {
5040                 struct mlx5_priv *port_priv;
5041                 const struct rte_flow_item_port_id *pid_v;
5042                 int item_type = items->type;
5043
5044                 switch (item_type) {
5045                 case RTE_FLOW_ITEM_TYPE_PORT_ID:
5046                         pid_v = items->spec;
5047                         MLX5_ASSERT(pid_v);
5048                         port_priv = mlx5_port_to_eswitch_info(pid_v->id, false);
5049                         if (!port_priv)
5050                                 return rte_flow_error_set(error,
5051                                                 rte_errno,
5052                                                 RTE_FLOW_ERROR_TYPE_ITEM_SPEC,
5053                                                 pid_v,
5054                                                 "Failed to get port info.");
5055                         flow_src_port = port_priv->representor_id;
5056                         if (!fm->def_policy && wks->policy->is_hierarchy &&
5057                             flow_src_port != priv->representor_id) {
5058                                 if (flow_drv_mtr_hierarchy_rule_create(dev,
5059                                                                 flow, fm,
5060                                                                 flow_src_port,
5061                                                                 items,
5062                                                                 error))
5063                                         return -rte_errno;
5064                         }
5065                         memcpy(sfx_items, items, sizeof(*sfx_items));
5066                         sfx_items++;
5067                         break;
5068                 case RTE_FLOW_ITEM_TYPE_VLAN:
5069                         /* Determine if copy vlan item below. */
5070                         vlan_item_src = items;
5071                         vlan_item_dst = sfx_items++;
5072                         vlan_item_dst->type = RTE_FLOW_ITEM_TYPE_VOID;
5073                         break;
5074                 default:
5075                         break;
5076                 }
5077         }
5078         sfx_items->type = RTE_FLOW_ITEM_TYPE_END;
5079         sfx_items++;
5080         mtr_first = priv->sh->meter_aso_en &&
5081                 (attr->egress || (attr->transfer && flow_src_port != UINT16_MAX));
5082         /* For ASO meter, meter must be before tag in TX direction. */
5083         if (mtr_first) {
5084                 action_pre_head = actions_pre++;
5085                 /* Leave space for tag action. */
5086                 tag_action = actions_pre++;
5087         }
5088         /* Prepare the actions for prefix and suffix flow. */
5089         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
5090                 struct rte_flow_action *action_cur = NULL;
5091
5092                 switch (actions->type) {
5093                 case RTE_FLOW_ACTION_TYPE_METER:
5094                         if (mtr_first) {
5095                                 action_cur = action_pre_head;
5096                         } else {
5097                                 /* Leave space for tag action. */
5098                                 tag_action = actions_pre++;
5099                                 action_cur = actions_pre++;
5100                         }
5101                         break;
5102                 case RTE_FLOW_ACTION_TYPE_VXLAN_DECAP:
5103                 case RTE_FLOW_ACTION_TYPE_NVGRE_DECAP:
5104                         action_cur = actions_pre++;
5105                         break;
5106                 case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
5107                         raw_encap = actions->conf;
5108                         if (raw_encap->size < MLX5_ENCAPSULATION_DECISION_SIZE)
5109                                 action_cur = actions_pre++;
5110                         break;
5111                 case RTE_FLOW_ACTION_TYPE_RAW_DECAP:
5112                         raw_decap = actions->conf;
5113                         if (raw_decap->size > MLX5_ENCAPSULATION_DECISION_SIZE)
5114                                 action_cur = actions_pre++;
5115                         break;
5116                 case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN:
5117                 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID:
5118                         if (vlan_item_dst && vlan_item_src) {
5119                                 memcpy(vlan_item_dst, vlan_item_src,
5120                                         sizeof(*vlan_item_dst));
5121                                 /*
5122                                  * Convert to internal match item, it is used
5123                                  * for vlan push and set vid.
5124                                  */
5125                                 vlan_item_dst->type = (enum rte_flow_item_type)
5126                                                 MLX5_RTE_FLOW_ITEM_TYPE_VLAN;
5127                         }
5128                         break;
5129                 default:
5130                         break;
5131                 }
5132                 if (!action_cur)
5133                         action_cur = (fm->def_policy) ?
5134                                         actions_sfx++ : actions_pre++;
5135                 memcpy(action_cur, actions, sizeof(struct rte_flow_action));
5136         }
5137         /* Add end action to the actions. */
5138         actions_sfx->type = RTE_FLOW_ACTION_TYPE_END;
5139         if (priv->sh->meter_aso_en) {
5140                 /**
5141                  * For ASO meter, need to add an extra jump action explicitly,
5142                  * to jump from meter to policer table.
5143                  */
5144                 struct mlx5_flow_meter_sub_policy *sub_policy;
5145                 struct mlx5_flow_tbl_data_entry *tbl_data;
5146
5147                 if (!fm->def_policy) {
5148                         sub_policy = get_meter_sub_policy(dev, flow, wks,
5149                                                           attr, items, error);
5150                         if (!sub_policy)
5151                                 return -rte_errno;
5152                 } else {
5153                         enum mlx5_meter_domain mtr_domain =
5154                         attr->transfer ? MLX5_MTR_DOMAIN_TRANSFER :
5155                                 (attr->egress ? MLX5_MTR_DOMAIN_EGRESS :
5156                                                 MLX5_MTR_DOMAIN_INGRESS);
5157
5158                         sub_policy =
5159                         &priv->sh->mtrmng->def_policy[mtr_domain]->sub_policy;
5160                 }
5161                 tbl_data = container_of(sub_policy->tbl_rsc,
5162                                         struct mlx5_flow_tbl_data_entry, tbl);
5163                 hw_mtr_action = actions_pre++;
5164                 hw_mtr_action->type = (enum rte_flow_action_type)
5165                                       MLX5_RTE_FLOW_ACTION_TYPE_JUMP;
5166                 hw_mtr_action->conf = tbl_data->jump.action;
5167         }
5168         actions_pre->type = RTE_FLOW_ACTION_TYPE_END;
5169         actions_pre++;
5170         if (!tag_action)
5171                 return rte_flow_error_set(error, ENOMEM,
5172                                           RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
5173                                           NULL, "No tag action space.");
5174         if (!mtr_flow_id) {
5175                 tag_action->type = RTE_FLOW_ACTION_TYPE_VOID;
5176                 goto exit;
5177         }
5178         /* Only default-policy Meter creates mtr flow id. */
5179         if (fm->def_policy) {
5180                 mlx5_ipool_malloc(fm->flow_ipool, &tag_id);
5181                 if (!tag_id)
5182                         return rte_flow_error_set(error, ENOMEM,
5183                                         RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
5184                                         "Failed to allocate meter flow id.");
5185                 flow_id = tag_id - 1;
5186                 flow_id_bits = (!flow_id) ? 1 :
5187                                 (MLX5_REG_BITS - __builtin_clz(flow_id));
5188                 if ((flow_id_bits + priv->sh->mtrmng->max_mtr_bits) >
5189                     mtr_reg_bits) {
5190                         mlx5_ipool_free(fm->flow_ipool, tag_id);
5191                         return rte_flow_error_set(error, EINVAL,
5192                                         RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
5193                                         "Meter flow id exceeds max limit.");
5194                 }
5195                 if (flow_id_bits > priv->sh->mtrmng->max_mtr_flow_bits)
5196                         priv->sh->mtrmng->max_mtr_flow_bits = flow_id_bits;
5197         }
5198         /* Build tag actions and items for meter_id/meter flow_id. */
5199         set_tag = (struct mlx5_rte_flow_action_set_tag *)actions_pre;
5200         tag_item_spec = (struct mlx5_rte_flow_item_tag *)sfx_items;
5201         tag_item_mask = tag_item_spec + 1;
5202         /* Both flow_id and meter_id share the same register. */
5203         *set_tag = (struct mlx5_rte_flow_action_set_tag) {
5204                 .id = (enum modify_reg)mlx5_flow_get_reg_id(dev, MLX5_MTR_ID,
5205                                                             0, error),
5206                 .offset = mtr_id_offset,
5207                 .length = mtr_reg_bits,
5208                 .data = flow->meter,
5209         };
5210         /*
5211          * The color Reg bits used by flow_id are growing from
5212          * msb to lsb, so must do bit reverse for flow_id val in RegC.
5213          */
5214         for (shift = 0; shift < flow_id_bits; shift++)
5215                 flow_id_reversed = (flow_id_reversed << 1) |
5216                                 ((flow_id >> shift) & 0x1);
5217         set_tag->data |=
5218                 flow_id_reversed << (mtr_reg_bits - flow_id_bits);
5219         tag_item_spec->id = set_tag->id;
5220         tag_item_spec->data = set_tag->data << mtr_id_offset;
5221         tag_item_mask->data = UINT32_MAX << mtr_id_offset;
5222         tag_action->type = (enum rte_flow_action_type)
5223                                 MLX5_RTE_FLOW_ACTION_TYPE_TAG;
5224         tag_action->conf = set_tag;
5225         tag_item->type = (enum rte_flow_item_type)
5226                                 MLX5_RTE_FLOW_ITEM_TYPE_TAG;
5227         tag_item->spec = tag_item_spec;
5228         tag_item->last = NULL;
5229         tag_item->mask = tag_item_mask;
5230 exit:
5231         if (mtr_flow_id)
5232                 *mtr_flow_id = tag_id;
5233         return 0;
5234 }
5235
5236 /**
5237  * Split action list having QUEUE/RSS for metadata register copy.
5238  *
5239  * Once Q/RSS action is detected in user's action list, the flow action
5240  * should be split in order to copy metadata registers, which will happen in
5241  * RX_CP_TBL like,
5242  *   - CQE->flow_tag := reg_c[1] (MARK)
5243  *   - CQE->flow_table_metadata (reg_b) := reg_c[0] (META)
5244  * The Q/RSS action will be performed on RX_ACT_TBL after passing by RX_CP_TBL.
5245  * This is because the last action of each flow must be a terminal action
5246  * (QUEUE, RSS or DROP).
5247  *
5248  * Flow ID must be allocated to identify actions in the RX_ACT_TBL and it is
5249  * stored and kept in the mlx5_flow structure per each sub_flow.
5250  *
5251  * The Q/RSS action is replaced with,
5252  *   - SET_TAG, setting the allocated flow ID to reg_c[2].
5253  * And the following JUMP action is added at the end,
5254  *   - JUMP, to RX_CP_TBL.
5255  *
5256  * A flow to perform remained Q/RSS action will be created in RX_ACT_TBL by
5257  * flow_create_split_metadata() routine. The flow will look like,
5258  *   - If flow ID matches (reg_c[2]), perform Q/RSS.
5259  *
5260  * @param dev
5261  *   Pointer to Ethernet device.
5262  * @param[out] split_actions
5263  *   Pointer to store split actions to jump to CP_TBL.
5264  * @param[in] actions
5265  *   Pointer to the list of original flow actions.
5266  * @param[in] qrss
5267  *   Pointer to the Q/RSS action.
5268  * @param[in] actions_n
5269  *   Number of original actions.
5270  * @param[in] mtr_sfx
5271  *   Check if it is in meter suffix table.
5272  * @param[out] error
5273  *   Perform verbose error reporting if not NULL.
5274  *
5275  * @return
5276  *   non-zero unique flow_id on success, otherwise 0 and
5277  *   error/rte_error are set.
5278  */
5279 static uint32_t
5280 flow_mreg_split_qrss_prep(struct rte_eth_dev *dev,
5281                           struct rte_flow_action *split_actions,
5282                           const struct rte_flow_action *actions,
5283                           const struct rte_flow_action *qrss,
5284                           int actions_n, int mtr_sfx,
5285                           struct rte_flow_error *error)
5286 {
5287         struct mlx5_priv *priv = dev->data->dev_private;
5288         struct mlx5_rte_flow_action_set_tag *set_tag;
5289         struct rte_flow_action_jump *jump;
5290         const int qrss_idx = qrss - actions;
5291         uint32_t flow_id = 0;
5292         int ret = 0;
5293
5294         /*
5295          * Given actions will be split
5296          * - Replace QUEUE/RSS action with SET_TAG to set flow ID.
5297          * - Add jump to mreg CP_TBL.
5298          * As a result, there will be one more action.
5299          */
5300         memcpy(split_actions, actions, sizeof(*split_actions) * actions_n);
5301         /* Count MLX5_RTE_FLOW_ACTION_TYPE_TAG. */
5302         ++actions_n;
5303         set_tag = (void *)(split_actions + actions_n);
5304         /*
5305          * If we are not the meter suffix flow, add the tag action.
5306          * Since meter suffix flow already has the tag added.
5307          */
5308         if (!mtr_sfx) {
5309                 /*
5310                  * Allocate the new subflow ID. This one is unique within
5311                  * device and not shared with representors. Otherwise,
5312                  * we would have to resolve multi-thread access synch
5313                  * issue. Each flow on the shared device is appended
5314                  * with source vport identifier, so the resulting
5315                  * flows will be unique in the shared (by master and
5316                  * representors) domain even if they have coinciding
5317                  * IDs.
5318                  */
5319                 mlx5_ipool_malloc(priv->sh->ipool
5320                                   [MLX5_IPOOL_RSS_EXPANTION_FLOW_ID], &flow_id);
5321                 if (!flow_id)
5322                         return rte_flow_error_set(error, ENOMEM,
5323                                                   RTE_FLOW_ERROR_TYPE_ACTION,
5324                                                   NULL, "can't allocate id "
5325                                                   "for split Q/RSS subflow");
5326                 /* Internal SET_TAG action to set flow ID. */
5327                 *set_tag = (struct mlx5_rte_flow_action_set_tag){
5328                         .data = flow_id,
5329                 };
5330                 ret = mlx5_flow_get_reg_id(dev, MLX5_COPY_MARK, 0, error);
5331                 if (ret < 0)
5332                         return ret;
5333                 set_tag->id = ret;
5334                 /* Construct new actions array. */
5335                 /* Replace QUEUE/RSS action. */
5336                 split_actions[qrss_idx] = (struct rte_flow_action){
5337                         .type = (enum rte_flow_action_type)
5338                                 MLX5_RTE_FLOW_ACTION_TYPE_TAG,
5339                         .conf = set_tag,
5340                 };
5341         } else {
5342                 /*
5343                  * If we are the suffix flow of meter, tag already exist.
5344                  * Set the QUEUE/RSS action to void.
5345                  */
5346                 split_actions[qrss_idx].type = RTE_FLOW_ACTION_TYPE_VOID;
5347         }
5348         /* JUMP action to jump to mreg copy table (CP_TBL). */
5349         jump = (void *)(set_tag + 1);
5350         *jump = (struct rte_flow_action_jump){
5351                 .group = MLX5_FLOW_MREG_CP_TABLE_GROUP,
5352         };
5353         split_actions[actions_n - 2] = (struct rte_flow_action){
5354                 .type = RTE_FLOW_ACTION_TYPE_JUMP,
5355                 .conf = jump,
5356         };
5357         split_actions[actions_n - 1] = (struct rte_flow_action){
5358                 .type = RTE_FLOW_ACTION_TYPE_END,
5359         };
5360         return flow_id;
5361 }
5362
5363 /**
5364  * Extend the given action list for Tx metadata copy.
5365  *
5366  * Copy the given action list to the ext_actions and add flow metadata register
5367  * copy action in order to copy reg_a set by WQE to reg_c[0].
5368  *
5369  * @param[out] ext_actions
5370  *   Pointer to the extended action list.
5371  * @param[in] actions
5372  *   Pointer to the list of actions.
5373  * @param[in] actions_n
5374  *   Number of actions in the list.
5375  * @param[out] error
5376  *   Perform verbose error reporting if not NULL.
5377  * @param[in] encap_idx
5378  *   The encap action index.
5379  *
5380  * @return
5381  *   0 on success, negative value otherwise
5382  */
5383 static int
5384 flow_mreg_tx_copy_prep(struct rte_eth_dev *dev,
5385                        struct rte_flow_action *ext_actions,
5386                        const struct rte_flow_action *actions,
5387                        int actions_n, struct rte_flow_error *error,
5388                        int encap_idx)
5389 {
5390         struct mlx5_flow_action_copy_mreg *cp_mreg =
5391                 (struct mlx5_flow_action_copy_mreg *)
5392                         (ext_actions + actions_n + 1);
5393         int ret;
5394
5395         ret = mlx5_flow_get_reg_id(dev, MLX5_METADATA_RX, 0, error);
5396         if (ret < 0)
5397                 return ret;
5398         cp_mreg->dst = ret;
5399         ret = mlx5_flow_get_reg_id(dev, MLX5_METADATA_TX, 0, error);
5400         if (ret < 0)
5401                 return ret;
5402         cp_mreg->src = ret;
5403         if (encap_idx != 0)
5404                 memcpy(ext_actions, actions, sizeof(*ext_actions) * encap_idx);
5405         if (encap_idx == actions_n - 1) {
5406                 ext_actions[actions_n - 1] = (struct rte_flow_action){
5407                         .type = (enum rte_flow_action_type)
5408                                 MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
5409                         .conf = cp_mreg,
5410                 };
5411                 ext_actions[actions_n] = (struct rte_flow_action){
5412                         .type = RTE_FLOW_ACTION_TYPE_END,
5413                 };
5414         } else {
5415                 ext_actions[encap_idx] = (struct rte_flow_action){
5416                         .type = (enum rte_flow_action_type)
5417                                 MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
5418                         .conf = cp_mreg,
5419                 };
5420                 memcpy(ext_actions + encap_idx + 1, actions + encap_idx,
5421                                 sizeof(*ext_actions) * (actions_n - encap_idx));
5422         }
5423         return 0;
5424 }
5425
5426 /**
5427  * Check the match action from the action list.
5428  *
5429  * @param[in] actions
5430  *   Pointer to the list of actions.
5431  * @param[in] attr
5432  *   Flow rule attributes.
5433  * @param[in] action
5434  *   The action to be check if exist.
5435  * @param[out] match_action_pos
5436  *   Pointer to the position of the matched action if exists, otherwise is -1.
5437  * @param[out] qrss_action_pos
5438  *   Pointer to the position of the Queue/RSS action if exists, otherwise is -1.
5439  * @param[out] modify_after_mirror
5440  *   Pointer to the flag of modify action after FDB mirroring.
5441  *
5442  * @return
5443  *   > 0 the total number of actions.
5444  *   0 if not found match action in action list.
5445  */
5446 static int
5447 flow_check_match_action(const struct rte_flow_action actions[],
5448                         const struct rte_flow_attr *attr,
5449                         enum rte_flow_action_type action,
5450                         int *match_action_pos, int *qrss_action_pos,
5451                         int *modify_after_mirror)
5452 {
5453         const struct rte_flow_action_sample *sample;
5454         const struct rte_flow_action_raw_decap *decap;
5455         int actions_n = 0;
5456         uint32_t ratio = 0;
5457         int sub_type = 0;
5458         int flag = 0;
5459         int fdb_mirror = 0;
5460
5461         *match_action_pos = -1;
5462         *qrss_action_pos = -1;
5463         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
5464                 if (actions->type == action) {
5465                         flag = 1;
5466                         *match_action_pos = actions_n;
5467                 }
5468                 switch (actions->type) {
5469                 case RTE_FLOW_ACTION_TYPE_QUEUE:
5470                 case RTE_FLOW_ACTION_TYPE_RSS:
5471                         *qrss_action_pos = actions_n;
5472                         break;
5473                 case RTE_FLOW_ACTION_TYPE_SAMPLE:
5474                         sample = actions->conf;
5475                         ratio = sample->ratio;
5476                         sub_type = ((const struct rte_flow_action *)
5477                                         (sample->actions))->type;
5478                         if (ratio == 1 && attr->transfer)
5479                                 fdb_mirror = 1;
5480                         break;
5481                 case RTE_FLOW_ACTION_TYPE_SET_MAC_SRC:
5482                 case RTE_FLOW_ACTION_TYPE_SET_MAC_DST:
5483                 case RTE_FLOW_ACTION_TYPE_SET_IPV4_SRC:
5484                 case RTE_FLOW_ACTION_TYPE_SET_IPV4_DST:
5485                 case RTE_FLOW_ACTION_TYPE_SET_IPV6_SRC:
5486                 case RTE_FLOW_ACTION_TYPE_SET_IPV6_DST:
5487                 case RTE_FLOW_ACTION_TYPE_SET_TP_SRC:
5488                 case RTE_FLOW_ACTION_TYPE_SET_TP_DST:
5489                 case RTE_FLOW_ACTION_TYPE_DEC_TTL:
5490                 case RTE_FLOW_ACTION_TYPE_SET_TTL:
5491                 case RTE_FLOW_ACTION_TYPE_INC_TCP_SEQ:
5492                 case RTE_FLOW_ACTION_TYPE_DEC_TCP_SEQ:
5493                 case RTE_FLOW_ACTION_TYPE_INC_TCP_ACK:
5494                 case RTE_FLOW_ACTION_TYPE_DEC_TCP_ACK:
5495                 case RTE_FLOW_ACTION_TYPE_SET_IPV4_DSCP:
5496                 case RTE_FLOW_ACTION_TYPE_SET_IPV6_DSCP:
5497                 case RTE_FLOW_ACTION_TYPE_FLAG:
5498                 case RTE_FLOW_ACTION_TYPE_MARK:
5499                 case RTE_FLOW_ACTION_TYPE_SET_META:
5500                 case RTE_FLOW_ACTION_TYPE_SET_TAG:
5501                 case RTE_FLOW_ACTION_TYPE_OF_POP_VLAN:
5502                 case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN:
5503                 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID:
5504                 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP:
5505                 case RTE_FLOW_ACTION_TYPE_VXLAN_DECAP:
5506                 case RTE_FLOW_ACTION_TYPE_NVGRE_DECAP:
5507                 case RTE_FLOW_ACTION_TYPE_MODIFY_FIELD:
5508                 case RTE_FLOW_ACTION_TYPE_METER:
5509                         if (fdb_mirror)
5510                                 *modify_after_mirror = 1;
5511                         break;
5512                 case RTE_FLOW_ACTION_TYPE_RAW_DECAP:
5513                         decap = actions->conf;
5514                         while ((++actions)->type == RTE_FLOW_ACTION_TYPE_VOID)
5515                                 ;
5516                         actions_n++;
5517                         if (actions->type == RTE_FLOW_ACTION_TYPE_RAW_ENCAP) {
5518                                 const struct rte_flow_action_raw_encap *encap =
5519                                                                 actions->conf;
5520                                 if (decap->size <=
5521                                         MLX5_ENCAPSULATION_DECISION_SIZE &&
5522                                     encap->size >
5523                                         MLX5_ENCAPSULATION_DECISION_SIZE)
5524                                         /* L3 encap. */
5525                                         break;
5526                         }
5527                         if (fdb_mirror)
5528                                 *modify_after_mirror = 1;
5529                         break;
5530                 default:
5531                         break;
5532                 }
5533                 actions_n++;
5534         }
5535         if (flag && fdb_mirror && !*modify_after_mirror) {
5536                 /* FDB mirroring uses the destination array to implement
5537                  * instead of FLOW_SAMPLER object.
5538                  */
5539                 if (sub_type != RTE_FLOW_ACTION_TYPE_END)
5540                         flag = 0;
5541         }
5542         /* Count RTE_FLOW_ACTION_TYPE_END. */
5543         return flag ? actions_n + 1 : 0;
5544 }
5545
5546 #define SAMPLE_SUFFIX_ITEM 2
5547
5548 /**
5549  * Split the sample flow.
5550  *
5551  * As sample flow will split to two sub flow, sample flow with
5552  * sample action, the other actions will move to new suffix flow.
5553  *
5554  * Also add unique tag id with tag action in the sample flow,
5555  * the same tag id will be as match in the suffix flow.
5556  *
5557  * @param dev
5558  *   Pointer to Ethernet device.
5559  * @param[in] add_tag
5560  *   Add extra tag action flag.
5561  * @param[out] sfx_items
5562  *   Suffix flow match items (list terminated by the END pattern item).
5563  * @param[in] actions
5564  *   Associated actions (list terminated by the END action).
5565  * @param[out] actions_sfx
5566  *   Suffix flow actions.
5567  * @param[out] actions_pre
5568  *   Prefix flow actions.
5569  * @param[in] actions_n
5570  *  The total number of actions.
5571  * @param[in] sample_action_pos
5572  *   The sample action position.
5573  * @param[in] qrss_action_pos
5574  *   The Queue/RSS action position.
5575  * @param[in] jump_table
5576  *   Add extra jump action flag.
5577  * @param[out] error
5578  *   Perform verbose error reporting if not NULL.
5579  *
5580  * @return
5581  *   0 on success, or unique flow_id, a negative errno value
5582  *   otherwise and rte_errno is set.
5583  */
5584 static int
5585 flow_sample_split_prep(struct rte_eth_dev *dev,
5586                        int add_tag,
5587                        struct rte_flow_item sfx_items[],
5588                        const struct rte_flow_action actions[],
5589                        struct rte_flow_action actions_sfx[],
5590                        struct rte_flow_action actions_pre[],
5591                        int actions_n,
5592                        int sample_action_pos,
5593                        int qrss_action_pos,
5594                        int jump_table,
5595                        struct rte_flow_error *error)
5596 {
5597         struct mlx5_priv *priv = dev->data->dev_private;
5598         struct mlx5_rte_flow_action_set_tag *set_tag;
5599         struct mlx5_rte_flow_item_tag *tag_spec;
5600         struct mlx5_rte_flow_item_tag *tag_mask;
5601         struct rte_flow_action_jump *jump_action;
5602         uint32_t tag_id = 0;
5603         int index;
5604         int append_index = 0;
5605         int ret;
5606
5607         if (sample_action_pos < 0)
5608                 return rte_flow_error_set(error, EINVAL,
5609                                           RTE_FLOW_ERROR_TYPE_ACTION,
5610                                           NULL, "invalid position of sample "
5611                                           "action in list");
5612         /* Prepare the actions for prefix and suffix flow. */
5613         if (qrss_action_pos >= 0 && qrss_action_pos < sample_action_pos) {
5614                 index = qrss_action_pos;
5615                 /* Put the preceding the Queue/RSS action into prefix flow. */
5616                 if (index != 0)
5617                         memcpy(actions_pre, actions,
5618                                sizeof(struct rte_flow_action) * index);
5619                 /* Put others preceding the sample action into prefix flow. */
5620                 if (sample_action_pos > index + 1)
5621                         memcpy(actions_pre + index, actions + index + 1,
5622                                sizeof(struct rte_flow_action) *
5623                                (sample_action_pos - index - 1));
5624                 index = sample_action_pos - 1;
5625                 /* Put Queue/RSS action into Suffix flow. */
5626                 memcpy(actions_sfx, actions + qrss_action_pos,
5627                        sizeof(struct rte_flow_action));
5628                 actions_sfx++;
5629         } else {
5630                 index = sample_action_pos;
5631                 if (index != 0)
5632                         memcpy(actions_pre, actions,
5633                                sizeof(struct rte_flow_action) * index);
5634         }
5635         /* For CX5, add an extra tag action for NIC-RX and E-Switch ingress.
5636          * For CX6DX and above, metadata registers Cx preserve their value,
5637          * add an extra tag action for NIC-RX and E-Switch Domain.
5638          */
5639         if (add_tag) {
5640                 /* Prepare the prefix tag action. */
5641                 append_index++;
5642                 set_tag = (void *)(actions_pre + actions_n + append_index);
5643                 ret = mlx5_flow_get_reg_id(dev, MLX5_SAMPLE_ID, 0, error);
5644                 if (ret < 0)
5645                         return ret;
5646                 mlx5_ipool_malloc(priv->sh->ipool
5647                                   [MLX5_IPOOL_RSS_EXPANTION_FLOW_ID], &tag_id);
5648                 *set_tag = (struct mlx5_rte_flow_action_set_tag) {
5649                         .id = ret,
5650                         .data = tag_id,
5651                 };
5652                 /* Prepare the suffix subflow items. */
5653                 tag_spec = (void *)(sfx_items + SAMPLE_SUFFIX_ITEM);
5654                 tag_spec->data = tag_id;
5655                 tag_spec->id = set_tag->id;
5656                 tag_mask = tag_spec + 1;
5657                 tag_mask->data = UINT32_MAX;
5658                 sfx_items[0] = (struct rte_flow_item){
5659                         .type = (enum rte_flow_item_type)
5660                                 MLX5_RTE_FLOW_ITEM_TYPE_TAG,
5661                         .spec = tag_spec,
5662                         .last = NULL,
5663                         .mask = tag_mask,
5664                 };
5665                 sfx_items[1] = (struct rte_flow_item){
5666                         .type = (enum rte_flow_item_type)
5667                                 RTE_FLOW_ITEM_TYPE_END,
5668                 };
5669                 /* Prepare the tag action in prefix subflow. */
5670                 actions_pre[index++] =
5671                         (struct rte_flow_action){
5672                         .type = (enum rte_flow_action_type)
5673                                 MLX5_RTE_FLOW_ACTION_TYPE_TAG,
5674                         .conf = set_tag,
5675                 };
5676         }
5677         memcpy(actions_pre + index, actions + sample_action_pos,
5678                sizeof(struct rte_flow_action));
5679         index += 1;
5680         /* For the modify action after the sample action in E-Switch mirroring,
5681          * Add the extra jump action in prefix subflow and jump into the next
5682          * table, then do the modify action in the new table.
5683          */
5684         if (jump_table) {
5685                 /* Prepare the prefix jump action. */
5686                 append_index++;
5687                 jump_action = (void *)(actions_pre + actions_n + append_index);
5688                 jump_action->group = jump_table;
5689                 actions_pre[index++] =
5690                         (struct rte_flow_action){
5691                         .type = (enum rte_flow_action_type)
5692                                 RTE_FLOW_ACTION_TYPE_JUMP,
5693                         .conf = jump_action,
5694                 };
5695         }
5696         actions_pre[index] = (struct rte_flow_action){
5697                 .type = (enum rte_flow_action_type)
5698                         RTE_FLOW_ACTION_TYPE_END,
5699         };
5700         /* Put the actions after sample into Suffix flow. */
5701         memcpy(actions_sfx, actions + sample_action_pos + 1,
5702                sizeof(struct rte_flow_action) *
5703                (actions_n - sample_action_pos - 1));
5704         return tag_id;
5705 }
5706
5707 /**
5708  * The splitting for metadata feature.
5709  *
5710  * - Q/RSS action on NIC Rx should be split in order to pass by
5711  *   the mreg copy table (RX_CP_TBL) and then it jumps to the
5712  *   action table (RX_ACT_TBL) which has the split Q/RSS action.
5713  *
5714  * - All the actions on NIC Tx should have a mreg copy action to
5715  *   copy reg_a from WQE to reg_c[0].
5716  *
5717  * @param dev
5718  *   Pointer to Ethernet device.
5719  * @param[in] flow
5720  *   Parent flow structure pointer.
5721  * @param[in] attr
5722  *   Flow rule attributes.
5723  * @param[in] items
5724  *   Pattern specification (list terminated by the END pattern item).
5725  * @param[in] actions
5726  *   Associated actions (list terminated by the END action).
5727  * @param[in] flow_split_info
5728  *   Pointer to flow split info structure.
5729  * @param[out] error
5730  *   Perform verbose error reporting if not NULL.
5731  * @return
5732  *   0 on success, negative value otherwise
5733  */
5734 static int
5735 flow_create_split_metadata(struct rte_eth_dev *dev,
5736                            struct rte_flow *flow,
5737                            const struct rte_flow_attr *attr,
5738                            const struct rte_flow_item items[],
5739                            const struct rte_flow_action actions[],
5740                            struct mlx5_flow_split_info *flow_split_info,
5741                            struct rte_flow_error *error)
5742 {
5743         struct mlx5_priv *priv = dev->data->dev_private;
5744         struct mlx5_dev_config *config = &priv->config;
5745         const struct rte_flow_action *qrss = NULL;
5746         struct rte_flow_action *ext_actions = NULL;
5747         struct mlx5_flow *dev_flow = NULL;
5748         uint32_t qrss_id = 0;
5749         int mtr_sfx = 0;
5750         size_t act_size;
5751         int actions_n;
5752         int encap_idx;
5753         int ret;
5754
5755         /* Check whether extensive metadata feature is engaged. */
5756         if (!config->dv_flow_en ||
5757             config->dv_xmeta_en == MLX5_XMETA_MODE_LEGACY ||
5758             !mlx5_flow_ext_mreg_supported(dev))
5759                 return flow_create_split_inner(dev, flow, NULL, attr, items,
5760                                                actions, flow_split_info, error);
5761         actions_n = flow_parse_metadata_split_actions_info(actions, &qrss,
5762                                                            &encap_idx);
5763         if (qrss) {
5764                 /* Exclude hairpin flows from splitting. */
5765                 if (qrss->type == RTE_FLOW_ACTION_TYPE_QUEUE) {
5766                         const struct rte_flow_action_queue *queue;
5767
5768                         queue = qrss->conf;
5769                         if (mlx5_rxq_get_type(dev, queue->index) ==
5770                             MLX5_RXQ_TYPE_HAIRPIN)
5771                                 qrss = NULL;
5772                 } else if (qrss->type == RTE_FLOW_ACTION_TYPE_RSS) {
5773                         const struct rte_flow_action_rss *rss;
5774
5775                         rss = qrss->conf;
5776                         if (mlx5_rxq_get_type(dev, rss->queue[0]) ==
5777                             MLX5_RXQ_TYPE_HAIRPIN)
5778                                 qrss = NULL;
5779                 }
5780         }
5781         if (qrss) {
5782                 /* Check if it is in meter suffix table. */
5783                 mtr_sfx = attr->group == (attr->transfer ?
5784                           (MLX5_FLOW_TABLE_LEVEL_METER - 1) :
5785                           MLX5_FLOW_TABLE_LEVEL_METER);
5786                 /*
5787                  * Q/RSS action on NIC Rx should be split in order to pass by
5788                  * the mreg copy table (RX_CP_TBL) and then it jumps to the
5789                  * action table (RX_ACT_TBL) which has the split Q/RSS action.
5790                  */
5791                 act_size = sizeof(struct rte_flow_action) * (actions_n + 1) +
5792                            sizeof(struct rte_flow_action_set_tag) +
5793                            sizeof(struct rte_flow_action_jump);
5794                 ext_actions = mlx5_malloc(MLX5_MEM_ZERO, act_size, 0,
5795                                           SOCKET_ID_ANY);
5796                 if (!ext_actions)
5797                         return rte_flow_error_set(error, ENOMEM,
5798                                                   RTE_FLOW_ERROR_TYPE_ACTION,
5799                                                   NULL, "no memory to split "
5800                                                   "metadata flow");
5801                 /*
5802                  * Create the new actions list with removed Q/RSS action
5803                  * and appended set tag and jump to register copy table
5804                  * (RX_CP_TBL). We should preallocate unique tag ID here
5805                  * in advance, because it is needed for set tag action.
5806                  */
5807                 qrss_id = flow_mreg_split_qrss_prep(dev, ext_actions, actions,
5808                                                     qrss, actions_n,
5809                                                     mtr_sfx, error);
5810                 if (!mtr_sfx && !qrss_id) {
5811                         ret = -rte_errno;
5812                         goto exit;
5813                 }
5814         } else if (attr->egress && !attr->transfer) {
5815                 /*
5816                  * All the actions on NIC Tx should have a metadata register
5817                  * copy action to copy reg_a from WQE to reg_c[meta]
5818                  */
5819                 act_size = sizeof(struct rte_flow_action) * (actions_n + 1) +
5820                            sizeof(struct mlx5_flow_action_copy_mreg);
5821                 ext_actions = mlx5_malloc(MLX5_MEM_ZERO, act_size, 0,
5822                                           SOCKET_ID_ANY);
5823                 if (!ext_actions)
5824                         return rte_flow_error_set(error, ENOMEM,
5825                                                   RTE_FLOW_ERROR_TYPE_ACTION,
5826                                                   NULL, "no memory to split "
5827                                                   "metadata flow");
5828                 /* Create the action list appended with copy register. */
5829                 ret = flow_mreg_tx_copy_prep(dev, ext_actions, actions,
5830                                              actions_n, error, encap_idx);
5831                 if (ret < 0)
5832                         goto exit;
5833         }
5834         /* Add the unmodified original or prefix subflow. */
5835         ret = flow_create_split_inner(dev, flow, &dev_flow, attr,
5836                                       items, ext_actions ? ext_actions :
5837                                       actions, flow_split_info, error);
5838         if (ret < 0)
5839                 goto exit;
5840         MLX5_ASSERT(dev_flow);
5841         if (qrss) {
5842                 const struct rte_flow_attr q_attr = {
5843                         .group = MLX5_FLOW_MREG_ACT_TABLE_GROUP,
5844                         .ingress = 1,
5845                 };
5846                 /* Internal PMD action to set register. */
5847                 struct mlx5_rte_flow_item_tag q_tag_spec = {
5848                         .data = qrss_id,
5849                         .id = REG_NON,
5850                 };
5851                 struct rte_flow_item q_items[] = {
5852                         {
5853                                 .type = (enum rte_flow_item_type)
5854                                         MLX5_RTE_FLOW_ITEM_TYPE_TAG,
5855                                 .spec = &q_tag_spec,
5856                                 .last = NULL,
5857                                 .mask = NULL,
5858                         },
5859                         {
5860                                 .type = RTE_FLOW_ITEM_TYPE_END,
5861                         },
5862                 };
5863                 struct rte_flow_action q_actions[] = {
5864                         {
5865                                 .type = qrss->type,
5866                                 .conf = qrss->conf,
5867                         },
5868                         {
5869                                 .type = RTE_FLOW_ACTION_TYPE_END,
5870                         },
5871                 };
5872                 uint64_t layers = flow_get_prefix_layer_flags(dev_flow);
5873
5874                 /*
5875                  * Configure the tag item only if there is no meter subflow.
5876                  * Since tag is already marked in the meter suffix subflow
5877                  * we can just use the meter suffix items as is.
5878                  */
5879                 if (qrss_id) {
5880                         /* Not meter subflow. */
5881                         MLX5_ASSERT(!mtr_sfx);
5882                         /*
5883                          * Put unique id in prefix flow due to it is destroyed
5884                          * after suffix flow and id will be freed after there
5885                          * is no actual flows with this id and identifier
5886                          * reallocation becomes possible (for example, for
5887                          * other flows in other threads).
5888                          */
5889                         dev_flow->handle->split_flow_id = qrss_id;
5890                         ret = mlx5_flow_get_reg_id(dev, MLX5_COPY_MARK, 0,
5891                                                    error);
5892                         if (ret < 0)
5893                                 goto exit;
5894                         q_tag_spec.id = ret;
5895                 }
5896                 dev_flow = NULL;
5897                 /* Add suffix subflow to execute Q/RSS. */
5898                 flow_split_info->prefix_layers = layers;
5899                 flow_split_info->prefix_mark = 0;
5900                 flow_split_info->table_id = 0;
5901                 ret = flow_create_split_inner(dev, flow, &dev_flow,
5902                                               &q_attr, mtr_sfx ? items :
5903                                               q_items, q_actions,
5904                                               flow_split_info, error);
5905                 if (ret < 0)
5906                         goto exit;
5907                 /* qrss ID should be freed if failed. */
5908                 qrss_id = 0;
5909                 MLX5_ASSERT(dev_flow);
5910         }
5911
5912 exit:
5913         /*
5914          * We do not destroy the partially created sub_flows in case of error.
5915          * These ones are included into parent flow list and will be destroyed
5916          * by flow_drv_destroy.
5917          */
5918         mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_RSS_EXPANTION_FLOW_ID],
5919                         qrss_id);
5920         mlx5_free(ext_actions);
5921         return ret;
5922 }
5923
5924 /**
5925  * Create meter internal drop flow with the original pattern.
5926  *
5927  * @param dev
5928  *   Pointer to Ethernet device.
5929  * @param[in] flow
5930  *   Parent flow structure pointer.
5931  * @param[in] attr
5932  *   Flow rule attributes.
5933  * @param[in] items
5934  *   Pattern specification (list terminated by the END pattern item).
5935  * @param[in] flow_split_info
5936  *   Pointer to flow split info structure.
5937  * @param[in] fm
5938  *   Pointer to flow meter structure.
5939  * @param[out] error
5940  *   Perform verbose error reporting if not NULL.
5941  * @return
5942  *   0 on success, negative value otherwise
5943  */
5944 static uint32_t
5945 flow_meter_create_drop_flow_with_org_pattern(struct rte_eth_dev *dev,
5946                         struct rte_flow *flow,
5947                         const struct rte_flow_attr *attr,
5948                         const struct rte_flow_item items[],
5949                         struct mlx5_flow_split_info *flow_split_info,
5950                         struct mlx5_flow_meter_info *fm,
5951                         struct rte_flow_error *error)
5952 {
5953         struct mlx5_flow *dev_flow = NULL;
5954         struct rte_flow_attr drop_attr = *attr;
5955         struct rte_flow_action drop_actions[3];
5956         struct mlx5_flow_split_info drop_split_info = *flow_split_info;
5957
5958         MLX5_ASSERT(fm->drop_cnt);
5959         drop_actions[0].type =
5960                 (enum rte_flow_action_type)MLX5_RTE_FLOW_ACTION_TYPE_COUNT;
5961         drop_actions[0].conf = (void *)(uintptr_t)fm->drop_cnt;
5962         drop_actions[1].type = RTE_FLOW_ACTION_TYPE_DROP;
5963         drop_actions[1].conf = NULL;
5964         drop_actions[2].type = RTE_FLOW_ACTION_TYPE_END;
5965         drop_actions[2].conf = NULL;
5966         drop_split_info.external = false;
5967         drop_split_info.skip_scale |= 1 << MLX5_SCALE_FLOW_GROUP_BIT;
5968         drop_split_info.table_id = MLX5_MTR_TABLE_ID_DROP;
5969         drop_attr.group = MLX5_FLOW_TABLE_LEVEL_METER;
5970         return flow_create_split_inner(dev, flow, &dev_flow,
5971                                 &drop_attr, items, drop_actions,
5972                                 &drop_split_info, error);
5973 }
5974
5975 /**
5976  * The splitting for meter feature.
5977  *
5978  * - The meter flow will be split to two flows as prefix and
5979  *   suffix flow. The packets make sense only it pass the prefix
5980  *   meter action.
5981  *
5982  * - Reg_C_5 is used for the packet to match betweend prefix and
5983  *   suffix flow.
5984  *
5985  * @param dev
5986  *   Pointer to Ethernet device.
5987  * @param[in] flow
5988  *   Parent flow structure pointer.
5989  * @param[in] attr
5990  *   Flow rule attributes.
5991  * @param[in] items
5992  *   Pattern specification (list terminated by the END pattern item).
5993  * @param[in] actions
5994  *   Associated actions (list terminated by the END action).
5995  * @param[in] flow_split_info
5996  *   Pointer to flow split info structure.
5997  * @param[out] error
5998  *   Perform verbose error reporting if not NULL.
5999  * @return
6000  *   0 on success, negative value otherwise
6001  */
6002 static int
6003 flow_create_split_meter(struct rte_eth_dev *dev,
6004                         struct rte_flow *flow,
6005                         const struct rte_flow_attr *attr,
6006                         const struct rte_flow_item items[],
6007                         const struct rte_flow_action actions[],
6008                         struct mlx5_flow_split_info *flow_split_info,
6009                         struct rte_flow_error *error)
6010 {
6011         struct mlx5_priv *priv = dev->data->dev_private;
6012         struct mlx5_flow_workspace *wks = mlx5_flow_get_thread_workspace();
6013         struct rte_flow_action *sfx_actions = NULL;
6014         struct rte_flow_action *pre_actions = NULL;
6015         struct rte_flow_item *sfx_items = NULL;
6016         struct mlx5_flow *dev_flow = NULL;
6017         struct rte_flow_attr sfx_attr = *attr;
6018         struct mlx5_flow_meter_info *fm = NULL;
6019         uint8_t skip_scale_restore;
6020         bool has_mtr = false;
6021         bool has_modify = false;
6022         bool set_mtr_reg = true;
6023         bool is_mtr_hierarchy = false;
6024         uint32_t meter_id = 0;
6025         uint32_t mtr_idx = 0;
6026         uint32_t mtr_flow_id = 0;
6027         size_t act_size;
6028         size_t item_size;
6029         int actions_n = 0;
6030         int ret = 0;
6031
6032         if (priv->mtr_en)
6033                 actions_n = flow_check_meter_action(dev, actions, &has_mtr,
6034                                                     &has_modify, &meter_id);
6035         if (has_mtr) {
6036                 if (flow->meter) {
6037                         fm = flow_dv_meter_find_by_idx(priv, flow->meter);
6038                         if (!fm)
6039                                 return rte_flow_error_set(error, EINVAL,
6040                                                 RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
6041                                                 NULL, "Meter not found.");
6042                 } else {
6043                         fm = mlx5_flow_meter_find(priv, meter_id, &mtr_idx);
6044                         if (!fm)
6045                                 return rte_flow_error_set(error, EINVAL,
6046                                                 RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
6047                                                 NULL, "Meter not found.");
6048                         ret = mlx5_flow_meter_attach(priv, fm,
6049                                                      &sfx_attr, error);
6050                         if (ret)
6051                                 return -rte_errno;
6052                         flow->meter = mtr_idx;
6053                 }
6054                 MLX5_ASSERT(wks);
6055                 wks->fm = fm;
6056                 if (!fm->def_policy) {
6057                         wks->policy = mlx5_flow_meter_policy_find(dev,
6058                                                                   fm->policy_id,
6059                                                                   NULL);
6060                         MLX5_ASSERT(wks->policy);
6061                         if (wks->policy->is_hierarchy) {
6062                                 wks->final_policy =
6063                                 mlx5_flow_meter_hierarchy_get_final_policy(dev,
6064                                                                 wks->policy);
6065                                 if (!wks->final_policy)
6066                                         return rte_flow_error_set(error,
6067                                         EINVAL,
6068                                         RTE_FLOW_ERROR_TYPE_ACTION, NULL,
6069                                 "Failed to find terminal policy of hierarchy.");
6070                                 is_mtr_hierarchy = true;
6071                         }
6072                 }
6073                 /*
6074                  * If it isn't default-policy Meter, and
6075                  * 1. There's no action in flow to change
6076                  *    packet (modify/encap/decap etc.), OR
6077                  * 2. No drop count needed for this meter.
6078                  * 3. It's not meter hierarchy.
6079                  * Then no need to use regC to save meter id anymore.
6080                  */
6081                 if (!fm->def_policy && !is_mtr_hierarchy &&
6082                     (!has_modify || !fm->drop_cnt))
6083                         set_mtr_reg = false;
6084                 /* Prefix actions: meter, decap, encap, tag, jump, end. */
6085                 act_size = sizeof(struct rte_flow_action) * (actions_n + 6) +
6086                            sizeof(struct mlx5_rte_flow_action_set_tag);
6087                 /* Suffix items: tag, vlan, port id, end. */
6088 #define METER_SUFFIX_ITEM 4
6089                 item_size = sizeof(struct rte_flow_item) * METER_SUFFIX_ITEM +
6090                             sizeof(struct mlx5_rte_flow_item_tag) * 2;
6091                 sfx_actions = mlx5_malloc(MLX5_MEM_ZERO, (act_size + item_size),
6092                                           0, SOCKET_ID_ANY);
6093                 if (!sfx_actions)
6094                         return rte_flow_error_set(error, ENOMEM,
6095                                                   RTE_FLOW_ERROR_TYPE_ACTION,
6096                                                   NULL, "no memory to split "
6097                                                   "meter flow");
6098                 sfx_items = (struct rte_flow_item *)((char *)sfx_actions +
6099                              act_size);
6100                 /* There's no suffix flow for meter of non-default policy. */
6101                 if (!fm->def_policy)
6102                         pre_actions = sfx_actions + 1;
6103                 else
6104                         pre_actions = sfx_actions + actions_n;
6105                 ret = flow_meter_split_prep(dev, flow, wks, &sfx_attr,
6106                                             items, sfx_items, actions,
6107                                             sfx_actions, pre_actions,
6108                                             (set_mtr_reg ? &mtr_flow_id : NULL),
6109                                             error);
6110                 if (ret) {
6111                         ret = -rte_errno;
6112                         goto exit;
6113                 }
6114                 /* Add the prefix subflow. */
6115                 skip_scale_restore = flow_split_info->skip_scale;
6116                 flow_split_info->skip_scale |=
6117                         1 << MLX5_SCALE_JUMP_FLOW_GROUP_BIT;
6118                 ret = flow_create_split_inner(dev, flow, &dev_flow,
6119                                               attr, items, pre_actions,
6120                                               flow_split_info, error);
6121                 flow_split_info->skip_scale = skip_scale_restore;
6122                 if (ret) {
6123                         if (mtr_flow_id)
6124                                 mlx5_ipool_free(fm->flow_ipool, mtr_flow_id);
6125                         ret = -rte_errno;
6126                         goto exit;
6127                 }
6128                 if (mtr_flow_id) {
6129                         dev_flow->handle->split_flow_id = mtr_flow_id;
6130                         dev_flow->handle->is_meter_flow_id = 1;
6131                 }
6132                 if (!fm->def_policy) {
6133                         if (!set_mtr_reg && fm->drop_cnt)
6134                                 ret =
6135                         flow_meter_create_drop_flow_with_org_pattern(dev, flow,
6136                                                         &sfx_attr, items,
6137                                                         flow_split_info,
6138                                                         fm, error);
6139                         goto exit;
6140                 }
6141                 /* Setting the sfx group atrr. */
6142                 sfx_attr.group = sfx_attr.transfer ?
6143                                 (MLX5_FLOW_TABLE_LEVEL_METER - 1) :
6144                                  MLX5_FLOW_TABLE_LEVEL_METER;
6145                 flow_split_info->prefix_layers =
6146                                 flow_get_prefix_layer_flags(dev_flow);
6147                 flow_split_info->prefix_mark |= wks->mark;
6148                 flow_split_info->table_id = MLX5_MTR_TABLE_ID_SUFFIX;
6149         }
6150         /* Add the prefix subflow. */
6151         ret = flow_create_split_metadata(dev, flow,
6152                                          &sfx_attr, sfx_items ?
6153                                          sfx_items : items,
6154                                          sfx_actions ? sfx_actions : actions,
6155                                          flow_split_info, error);
6156 exit:
6157         if (sfx_actions)
6158                 mlx5_free(sfx_actions);
6159         return ret;
6160 }
6161
6162 /**
6163  * The splitting for sample feature.
6164  *
6165  * Once Sample action is detected in the action list, the flow actions should
6166  * be split into prefix sub flow and suffix sub flow.
6167  *
6168  * The original items remain in the prefix sub flow, all actions preceding the
6169  * sample action and the sample action itself will be copied to the prefix
6170  * sub flow, the actions following the sample action will be copied to the
6171  * suffix sub flow, Queue action always be located in the suffix sub flow.
6172  *
6173  * In order to make the packet from prefix sub flow matches with suffix sub
6174  * flow, an extra tag action be added into prefix sub flow, and the suffix sub
6175  * flow uses tag item with the unique flow id.
6176  *
6177  * @param dev
6178  *   Pointer to Ethernet device.
6179  * @param[in] flow
6180  *   Parent flow structure pointer.
6181  * @param[in] attr
6182  *   Flow rule attributes.
6183  * @param[in] items
6184  *   Pattern specification (list terminated by the END pattern item).
6185  * @param[in] actions
6186  *   Associated actions (list terminated by the END action).
6187  * @param[in] flow_split_info
6188  *   Pointer to flow split info structure.
6189  * @param[out] error
6190  *   Perform verbose error reporting if not NULL.
6191  * @return
6192  *   0 on success, negative value otherwise
6193  */
6194 static int
6195 flow_create_split_sample(struct rte_eth_dev *dev,
6196                          struct rte_flow *flow,
6197                          const struct rte_flow_attr *attr,
6198                          const struct rte_flow_item items[],
6199                          const struct rte_flow_action actions[],
6200                          struct mlx5_flow_split_info *flow_split_info,
6201                          struct rte_flow_error *error)
6202 {
6203         struct mlx5_priv *priv = dev->data->dev_private;
6204         struct rte_flow_action *sfx_actions = NULL;
6205         struct rte_flow_action *pre_actions = NULL;
6206         struct rte_flow_item *sfx_items = NULL;
6207         struct mlx5_flow *dev_flow = NULL;
6208         struct rte_flow_attr sfx_attr = *attr;
6209 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
6210         struct mlx5_flow_dv_sample_resource *sample_res;
6211         struct mlx5_flow_tbl_data_entry *sfx_tbl_data;
6212         struct mlx5_flow_tbl_resource *sfx_tbl;
6213         struct mlx5_flow_workspace *wks = mlx5_flow_get_thread_workspace();
6214 #endif
6215         size_t act_size;
6216         size_t item_size;
6217         uint32_t fdb_tx = 0;
6218         int32_t tag_id = 0;
6219         int actions_n = 0;
6220         int sample_action_pos;
6221         int qrss_action_pos;
6222         int add_tag = 0;
6223         int modify_after_mirror = 0;
6224         uint16_t jump_table = 0;
6225         const uint32_t next_ft_step = 1;
6226         int ret = 0;
6227
6228         if (priv->sampler_en)
6229                 actions_n = flow_check_match_action(actions, attr,
6230                                         RTE_FLOW_ACTION_TYPE_SAMPLE,
6231                                         &sample_action_pos, &qrss_action_pos,
6232                                         &modify_after_mirror);
6233         if (actions_n) {
6234                 /* The prefix actions must includes sample, tag, end. */
6235                 act_size = sizeof(struct rte_flow_action) * (actions_n * 2 + 1)
6236                            + sizeof(struct mlx5_rte_flow_action_set_tag);
6237                 item_size = sizeof(struct rte_flow_item) * SAMPLE_SUFFIX_ITEM +
6238                             sizeof(struct mlx5_rte_flow_item_tag) * 2;
6239                 sfx_actions = mlx5_malloc(MLX5_MEM_ZERO, (act_size +
6240                                           item_size), 0, SOCKET_ID_ANY);
6241                 if (!sfx_actions)
6242                         return rte_flow_error_set(error, ENOMEM,
6243                                                   RTE_FLOW_ERROR_TYPE_ACTION,
6244                                                   NULL, "no memory to split "
6245                                                   "sample flow");
6246                 /* The representor_id is UINT16_MAX for uplink. */
6247                 fdb_tx = (attr->transfer && priv->representor_id != UINT16_MAX);
6248                 /*
6249                  * When reg_c_preserve is set, metadata registers Cx preserve
6250                  * their value even through packet duplication.
6251                  */
6252                 add_tag = (!fdb_tx || priv->config.hca_attr.reg_c_preserve);
6253                 if (add_tag)
6254                         sfx_items = (struct rte_flow_item *)((char *)sfx_actions
6255                                         + act_size);
6256                 if (modify_after_mirror)
6257                         jump_table = attr->group * MLX5_FLOW_TABLE_FACTOR +
6258                                      next_ft_step;
6259                 pre_actions = sfx_actions + actions_n;
6260                 tag_id = flow_sample_split_prep(dev, add_tag, sfx_items,
6261                                                 actions, sfx_actions,
6262                                                 pre_actions, actions_n,
6263                                                 sample_action_pos,
6264                                                 qrss_action_pos, jump_table,
6265                                                 error);
6266                 if (tag_id < 0 || (add_tag && !tag_id)) {
6267                         ret = -rte_errno;
6268                         goto exit;
6269                 }
6270                 if (modify_after_mirror)
6271                         flow_split_info->skip_scale =
6272                                         1 << MLX5_SCALE_JUMP_FLOW_GROUP_BIT;
6273                 /* Add the prefix subflow. */
6274                 ret = flow_create_split_inner(dev, flow, &dev_flow, attr,
6275                                               items, pre_actions,
6276                                               flow_split_info, error);
6277                 if (ret) {
6278                         ret = -rte_errno;
6279                         goto exit;
6280                 }
6281                 dev_flow->handle->split_flow_id = tag_id;
6282 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
6283                 if (!modify_after_mirror) {
6284                         /* Set the sfx group attr. */
6285                         sample_res = (struct mlx5_flow_dv_sample_resource *)
6286                                                 dev_flow->dv.sample_res;
6287                         sfx_tbl = (struct mlx5_flow_tbl_resource *)
6288                                                 sample_res->normal_path_tbl;
6289                         sfx_tbl_data = container_of(sfx_tbl,
6290                                                 struct mlx5_flow_tbl_data_entry,
6291                                                 tbl);
6292                         sfx_attr.group = sfx_attr.transfer ?
6293                         (sfx_tbl_data->level - 1) : sfx_tbl_data->level;
6294                 } else {
6295                         MLX5_ASSERT(attr->transfer);
6296                         sfx_attr.group = jump_table;
6297                 }
6298                 flow_split_info->prefix_layers =
6299                                 flow_get_prefix_layer_flags(dev_flow);
6300                 MLX5_ASSERT(wks);
6301                 flow_split_info->prefix_mark |= wks->mark;
6302                 /* Suffix group level already be scaled with factor, set
6303                  * MLX5_SCALE_FLOW_GROUP_BIT of skip_scale to 1 to avoid scale
6304                  * again in translation.
6305                  */
6306                 flow_split_info->skip_scale = 1 << MLX5_SCALE_FLOW_GROUP_BIT;
6307 #endif
6308         }
6309         /* Add the suffix subflow. */
6310         ret = flow_create_split_meter(dev, flow, &sfx_attr,
6311                                       sfx_items ? sfx_items : items,
6312                                       sfx_actions ? sfx_actions : actions,
6313                                       flow_split_info, error);
6314 exit:
6315         if (sfx_actions)
6316                 mlx5_free(sfx_actions);
6317         return ret;
6318 }
6319
6320 /**
6321  * Split the flow to subflow set. The splitters might be linked
6322  * in the chain, like this:
6323  * flow_create_split_outer() calls:
6324  *   flow_create_split_meter() calls:
6325  *     flow_create_split_metadata(meter_subflow_0) calls:
6326  *       flow_create_split_inner(metadata_subflow_0)
6327  *       flow_create_split_inner(metadata_subflow_1)
6328  *       flow_create_split_inner(metadata_subflow_2)
6329  *     flow_create_split_metadata(meter_subflow_1) calls:
6330  *       flow_create_split_inner(metadata_subflow_0)
6331  *       flow_create_split_inner(metadata_subflow_1)
6332  *       flow_create_split_inner(metadata_subflow_2)
6333  *
6334  * This provide flexible way to add new levels of flow splitting.
6335  * The all of successfully created subflows are included to the
6336  * parent flow dev_flow list.
6337  *
6338  * @param dev
6339  *   Pointer to Ethernet device.
6340  * @param[in] flow
6341  *   Parent flow structure pointer.
6342  * @param[in] attr
6343  *   Flow rule attributes.
6344  * @param[in] items
6345  *   Pattern specification (list terminated by the END pattern item).
6346  * @param[in] actions
6347  *   Associated actions (list terminated by the END action).
6348  * @param[in] flow_split_info
6349  *   Pointer to flow split info structure.
6350  * @param[out] error
6351  *   Perform verbose error reporting if not NULL.
6352  * @return
6353  *   0 on success, negative value otherwise
6354  */
6355 static int
6356 flow_create_split_outer(struct rte_eth_dev *dev,
6357                         struct rte_flow *flow,
6358                         const struct rte_flow_attr *attr,
6359                         const struct rte_flow_item items[],
6360                         const struct rte_flow_action actions[],
6361                         struct mlx5_flow_split_info *flow_split_info,
6362                         struct rte_flow_error *error)
6363 {
6364         int ret;
6365
6366         ret = flow_create_split_sample(dev, flow, attr, items,
6367                                        actions, flow_split_info, error);
6368         MLX5_ASSERT(ret <= 0);
6369         return ret;
6370 }
6371
6372 static inline struct mlx5_flow_tunnel *
6373 flow_tunnel_from_rule(const struct mlx5_flow *flow)
6374 {
6375         struct mlx5_flow_tunnel *tunnel;
6376
6377 #pragma GCC diagnostic push
6378 #pragma GCC diagnostic ignored "-Wcast-qual"
6379         tunnel = (typeof(tunnel))flow->tunnel;
6380 #pragma GCC diagnostic pop
6381
6382         return tunnel;
6383 }
6384
6385 /**
6386  * Adjust flow RSS workspace if needed.
6387  *
6388  * @param wks
6389  *   Pointer to thread flow work space.
6390  * @param rss_desc
6391  *   Pointer to RSS descriptor.
6392  * @param[in] nrssq_num
6393  *   New RSS queue number.
6394  *
6395  * @return
6396  *   0 on success, -1 otherwise and rte_errno is set.
6397  */
6398 static int
6399 flow_rss_workspace_adjust(struct mlx5_flow_workspace *wks,
6400                           struct mlx5_flow_rss_desc *rss_desc,
6401                           uint32_t nrssq_num)
6402 {
6403         if (likely(nrssq_num <= wks->rssq_num))
6404                 return 0;
6405         rss_desc->queue = realloc(rss_desc->queue,
6406                           sizeof(*rss_desc->queue) * RTE_ALIGN(nrssq_num, 2));
6407         if (!rss_desc->queue) {
6408                 rte_errno = ENOMEM;
6409                 return -1;
6410         }
6411         wks->rssq_num = RTE_ALIGN(nrssq_num, 2);
6412         return 0;
6413 }
6414
6415 /**
6416  * Create a flow and add it to @p list.
6417  *
6418  * @param dev
6419  *   Pointer to Ethernet device.
6420  * @param list
6421  *   Pointer to a TAILQ flow list. If this parameter NULL,
6422  *   no list insertion occurred, flow is just created,
6423  *   this is caller's responsibility to track the
6424  *   created flow.
6425  * @param[in] attr
6426  *   Flow rule attributes.
6427  * @param[in] items
6428  *   Pattern specification (list terminated by the END pattern item).
6429  * @param[in] actions
6430  *   Associated actions (list terminated by the END action).
6431  * @param[in] external
6432  *   This flow rule is created by request external to PMD.
6433  * @param[out] error
6434  *   Perform verbose error reporting if not NULL.
6435  *
6436  * @return
6437  *   A flow index on success, 0 otherwise and rte_errno is set.
6438  */
6439 static uint32_t
6440 flow_list_create(struct rte_eth_dev *dev, enum mlx5_flow_type type,
6441                  const struct rte_flow_attr *attr,
6442                  const struct rte_flow_item items[],
6443                  const struct rte_flow_action original_actions[],
6444                  bool external, struct rte_flow_error *error)
6445 {
6446         struct mlx5_priv *priv = dev->data->dev_private;
6447         struct rte_flow *flow = NULL;
6448         struct mlx5_flow *dev_flow;
6449         const struct rte_flow_action_rss *rss = NULL;
6450         struct mlx5_translated_action_handle
6451                 indir_actions[MLX5_MAX_INDIRECT_ACTIONS];
6452         int indir_actions_n = MLX5_MAX_INDIRECT_ACTIONS;
6453         union {
6454                 struct mlx5_flow_expand_rss buf;
6455                 uint8_t buffer[4096];
6456         } expand_buffer;
6457         union {
6458                 struct rte_flow_action actions[MLX5_MAX_SPLIT_ACTIONS];
6459                 uint8_t buffer[2048];
6460         } actions_rx;
6461         union {
6462                 struct rte_flow_action actions[MLX5_MAX_SPLIT_ACTIONS];
6463                 uint8_t buffer[2048];
6464         } actions_hairpin_tx;
6465         union {
6466                 struct rte_flow_item items[MLX5_MAX_SPLIT_ITEMS];
6467                 uint8_t buffer[2048];
6468         } items_tx;
6469         struct mlx5_flow_expand_rss *buf = &expand_buffer.buf;
6470         struct mlx5_flow_rss_desc *rss_desc;
6471         const struct rte_flow_action *p_actions_rx;
6472         uint32_t i;
6473         uint32_t idx = 0;
6474         int hairpin_flow;
6475         struct rte_flow_attr attr_tx = { .priority = 0 };
6476         const struct rte_flow_action *actions;
6477         struct rte_flow_action *translated_actions = NULL;
6478         struct mlx5_flow_tunnel *tunnel;
6479         struct tunnel_default_miss_ctx default_miss_ctx = { 0, };
6480         struct mlx5_flow_workspace *wks = mlx5_flow_push_thread_workspace();
6481         struct mlx5_flow_split_info flow_split_info = {
6482                 .external = !!external,
6483                 .skip_scale = 0,
6484                 .flow_idx = 0,
6485                 .prefix_mark = 0,
6486                 .prefix_layers = 0,
6487                 .table_id = 0
6488         };
6489         int ret;
6490
6491         MLX5_ASSERT(wks);
6492         rss_desc = &wks->rss_desc;
6493         ret = flow_action_handles_translate(dev, original_actions,
6494                                             indir_actions,
6495                                             &indir_actions_n,
6496                                             &translated_actions, error);
6497         if (ret < 0) {
6498                 MLX5_ASSERT(translated_actions == NULL);
6499                 return 0;
6500         }
6501         actions = translated_actions ? translated_actions : original_actions;
6502         p_actions_rx = actions;
6503         hairpin_flow = flow_check_hairpin_split(dev, attr, actions);
6504         ret = flow_drv_validate(dev, attr, items, p_actions_rx,
6505                                 external, hairpin_flow, error);
6506         if (ret < 0)
6507                 goto error_before_hairpin_split;
6508         flow = mlx5_ipool_zmalloc(priv->flows[type], &idx);
6509         if (!flow) {
6510                 rte_errno = ENOMEM;
6511                 goto error_before_hairpin_split;
6512         }
6513         if (hairpin_flow > 0) {
6514                 if (hairpin_flow > MLX5_MAX_SPLIT_ACTIONS) {
6515                         rte_errno = EINVAL;
6516                         goto error_before_hairpin_split;
6517                 }
6518                 flow_hairpin_split(dev, actions, actions_rx.actions,
6519                                    actions_hairpin_tx.actions, items_tx.items,
6520                                    idx);
6521                 p_actions_rx = actions_rx.actions;
6522         }
6523         flow_split_info.flow_idx = idx;
6524         flow->drv_type = flow_get_drv_type(dev, attr);
6525         MLX5_ASSERT(flow->drv_type > MLX5_FLOW_TYPE_MIN &&
6526                     flow->drv_type < MLX5_FLOW_TYPE_MAX);
6527         memset(rss_desc, 0, offsetof(struct mlx5_flow_rss_desc, queue));
6528         /* RSS Action only works on NIC RX domain */
6529         if (attr->ingress && !attr->transfer)
6530                 rss = flow_get_rss_action(dev, p_actions_rx);
6531         if (rss) {
6532                 if (flow_rss_workspace_adjust(wks, rss_desc, rss->queue_num))
6533                         return 0;
6534                 /*
6535                  * The following information is required by
6536                  * mlx5_flow_hashfields_adjust() in advance.
6537                  */
6538                 rss_desc->level = rss->level;
6539                 /* RSS type 0 indicates default RSS type (RTE_ETH_RSS_IP). */
6540                 rss_desc->types = !rss->types ? RTE_ETH_RSS_IP : rss->types;
6541         }
6542         flow->dev_handles = 0;
6543         if (rss && rss->types) {
6544                 unsigned int graph_root;
6545
6546                 graph_root = find_graph_root(rss->level);
6547                 ret = mlx5_flow_expand_rss(buf, sizeof(expand_buffer.buffer),
6548                                            items, rss->types,
6549                                            mlx5_support_expansion, graph_root);
6550                 MLX5_ASSERT(ret > 0 &&
6551                        (unsigned int)ret < sizeof(expand_buffer.buffer));
6552                 if (rte_log_can_log(mlx5_logtype, RTE_LOG_DEBUG)) {
6553                         for (i = 0; i < buf->entries; ++i)
6554                                 mlx5_dbg__print_pattern(buf->entry[i].pattern);
6555                 }
6556         } else {
6557                 buf->entries = 1;
6558                 buf->entry[0].pattern = (void *)(uintptr_t)items;
6559         }
6560         rss_desc->shared_rss = flow_get_shared_rss_action(dev, indir_actions,
6561                                                       indir_actions_n);
6562         for (i = 0; i < buf->entries; ++i) {
6563                 /* Initialize flow split data. */
6564                 flow_split_info.prefix_layers = 0;
6565                 flow_split_info.prefix_mark = 0;
6566                 flow_split_info.skip_scale = 0;
6567                 /*
6568                  * The splitter may create multiple dev_flows,
6569                  * depending on configuration. In the simplest
6570                  * case it just creates unmodified original flow.
6571                  */
6572                 ret = flow_create_split_outer(dev, flow, attr,
6573                                               buf->entry[i].pattern,
6574                                               p_actions_rx, &flow_split_info,
6575                                               error);
6576                 if (ret < 0)
6577                         goto error;
6578                 if (is_flow_tunnel_steer_rule(wks->flows[0].tof_type)) {
6579                         ret = flow_tunnel_add_default_miss(dev, flow, attr,
6580                                                            p_actions_rx,
6581                                                            idx,
6582                                                            wks->flows[0].tunnel,
6583                                                            &default_miss_ctx,
6584                                                            error);
6585                         if (ret < 0) {
6586                                 mlx5_free(default_miss_ctx.queue);
6587                                 goto error;
6588                         }
6589                 }
6590         }
6591         /* Create the tx flow. */
6592         if (hairpin_flow) {
6593                 attr_tx.group = MLX5_HAIRPIN_TX_TABLE;
6594                 attr_tx.ingress = 0;
6595                 attr_tx.egress = 1;
6596                 dev_flow = flow_drv_prepare(dev, flow, &attr_tx, items_tx.items,
6597                                          actions_hairpin_tx.actions,
6598                                          idx, error);
6599                 if (!dev_flow)
6600                         goto error;
6601                 dev_flow->flow = flow;
6602                 dev_flow->external = 0;
6603                 SILIST_INSERT(&flow->dev_handles, dev_flow->handle_idx,
6604                               dev_flow->handle, next);
6605                 ret = flow_drv_translate(dev, dev_flow, &attr_tx,
6606                                          items_tx.items,
6607                                          actions_hairpin_tx.actions, error);
6608                 if (ret < 0)
6609                         goto error;
6610         }
6611         /*
6612          * Update the metadata register copy table. If extensive
6613          * metadata feature is enabled and registers are supported
6614          * we might create the extra rte_flow for each unique
6615          * MARK/FLAG action ID.
6616          *
6617          * The table is updated for ingress Flows only, because
6618          * the egress Flows belong to the different device and
6619          * copy table should be updated in peer NIC Rx domain.
6620          */
6621         if (attr->ingress &&
6622             (external || attr->group != MLX5_FLOW_MREG_CP_TABLE_GROUP)) {
6623                 ret = flow_mreg_update_copy_table(dev, flow, actions, error);
6624                 if (ret)
6625                         goto error;
6626         }
6627         /*
6628          * If the flow is external (from application) OR device is started,
6629          * OR mreg discover, then apply immediately.
6630          */
6631         if (external || dev->data->dev_started ||
6632             (attr->group == MLX5_FLOW_MREG_CP_TABLE_GROUP &&
6633              attr->priority == MLX5_FLOW_LOWEST_PRIO_INDICATOR)) {
6634                 ret = flow_drv_apply(dev, flow, error);
6635                 if (ret < 0)
6636                         goto error;
6637         }
6638         flow->type = type;
6639         flow_rxq_flags_set(dev, flow);
6640         rte_free(translated_actions);
6641         tunnel = flow_tunnel_from_rule(wks->flows);
6642         if (tunnel) {
6643                 flow->tunnel = 1;
6644                 flow->tunnel_id = tunnel->tunnel_id;
6645                 __atomic_add_fetch(&tunnel->refctn, 1, __ATOMIC_RELAXED);
6646                 mlx5_free(default_miss_ctx.queue);
6647         }
6648         mlx5_flow_pop_thread_workspace();
6649         return idx;
6650 error:
6651         MLX5_ASSERT(flow);
6652         ret = rte_errno; /* Save rte_errno before cleanup. */
6653         flow_mreg_del_copy_action(dev, flow);
6654         flow_drv_destroy(dev, flow);
6655         if (rss_desc->shared_rss)
6656                 __atomic_sub_fetch(&((struct mlx5_shared_action_rss *)
6657                         mlx5_ipool_get
6658                         (priv->sh->ipool[MLX5_IPOOL_RSS_SHARED_ACTIONS],
6659                         rss_desc->shared_rss))->refcnt, 1, __ATOMIC_RELAXED);
6660         mlx5_ipool_free(priv->flows[type], idx);
6661         rte_errno = ret; /* Restore rte_errno. */
6662         ret = rte_errno;
6663         rte_errno = ret;
6664         mlx5_flow_pop_thread_workspace();
6665 error_before_hairpin_split:
6666         rte_free(translated_actions);
6667         return 0;
6668 }
6669
6670 /**
6671  * Create a dedicated flow rule on e-switch table 0 (root table), to direct all
6672  * incoming packets to table 1.
6673  *
6674  * Other flow rules, requested for group n, will be created in
6675  * e-switch table n+1.
6676  * Jump action to e-switch group n will be created to group n+1.
6677  *
6678  * Used when working in switchdev mode, to utilise advantages of table 1
6679  * and above.
6680  *
6681  * @param dev
6682  *   Pointer to Ethernet device.
6683  *
6684  * @return
6685  *   Pointer to flow on success, NULL otherwise and rte_errno is set.
6686  */
6687 struct rte_flow *
6688 mlx5_flow_create_esw_table_zero_flow(struct rte_eth_dev *dev)
6689 {
6690         const struct rte_flow_attr attr = {
6691                 .group = 0,
6692                 .priority = 0,
6693                 .ingress = 1,
6694                 .egress = 0,
6695                 .transfer = 1,
6696         };
6697         const struct rte_flow_item pattern = {
6698                 .type = RTE_FLOW_ITEM_TYPE_END,
6699         };
6700         struct rte_flow_action_jump jump = {
6701                 .group = 1,
6702         };
6703         const struct rte_flow_action actions[] = {
6704                 {
6705                         .type = RTE_FLOW_ACTION_TYPE_JUMP,
6706                         .conf = &jump,
6707                 },
6708                 {
6709                         .type = RTE_FLOW_ACTION_TYPE_END,
6710                 },
6711         };
6712         struct rte_flow_error error;
6713
6714         return (void *)(uintptr_t)flow_list_create(dev, MLX5_FLOW_TYPE_CTL,
6715                                                    &attr, &pattern,
6716                                                    actions, false, &error);
6717 }
6718
6719 /**
6720  * Create a dedicated flow rule on e-switch table 1, matches ESW manager
6721  * and sq number, directs all packets to peer vport.
6722  *
6723  * @param dev
6724  *   Pointer to Ethernet device.
6725  * @param txq
6726  *   Txq index.
6727  *
6728  * @return
6729  *   Flow ID on success, 0 otherwise and rte_errno is set.
6730  */
6731 uint32_t
6732 mlx5_flow_create_devx_sq_miss_flow(struct rte_eth_dev *dev, uint32_t txq)
6733 {
6734         struct rte_flow_attr attr = {
6735                 .group = 0,
6736                 .priority = MLX5_FLOW_LOWEST_PRIO_INDICATOR,
6737                 .ingress = 1,
6738                 .egress = 0,
6739                 .transfer = 1,
6740         };
6741         struct rte_flow_item_port_id port_spec = {
6742                 .id = MLX5_PORT_ESW_MGR,
6743         };
6744         struct mlx5_rte_flow_item_tx_queue txq_spec = {
6745                 .queue = txq,
6746         };
6747         struct rte_flow_item pattern[] = {
6748                 {
6749                         .type = RTE_FLOW_ITEM_TYPE_PORT_ID,
6750                         .spec = &port_spec,
6751                 },
6752                 {
6753                         .type = (enum rte_flow_item_type)
6754                                 MLX5_RTE_FLOW_ITEM_TYPE_TX_QUEUE,
6755                         .spec = &txq_spec,
6756                 },
6757                 {
6758                         .type = RTE_FLOW_ITEM_TYPE_END,
6759                 },
6760         };
6761         struct rte_flow_action_jump jump = {
6762                 .group = 1,
6763         };
6764         struct rte_flow_action_port_id port = {
6765                 .id = dev->data->port_id,
6766         };
6767         struct rte_flow_action actions[] = {
6768                 {
6769                         .type = RTE_FLOW_ACTION_TYPE_JUMP,
6770                         .conf = &jump,
6771                 },
6772                 {
6773                         .type = RTE_FLOW_ACTION_TYPE_END,
6774                 },
6775         };
6776         struct rte_flow_error error;
6777
6778         /*
6779          * Creates group 0, highest priority jump flow.
6780          * Matches txq to bypass kernel packets.
6781          */
6782         if (flow_list_create(dev, MLX5_FLOW_TYPE_CTL, &attr, pattern, actions,
6783                              false, &error) == 0)
6784                 return 0;
6785         /* Create group 1, lowest priority redirect flow for txq. */
6786         attr.group = 1;
6787         actions[0].conf = &port;
6788         actions[0].type = RTE_FLOW_ACTION_TYPE_PORT_ID;
6789         return flow_list_create(dev, MLX5_FLOW_TYPE_CTL, &attr, pattern,
6790                                 actions, false, &error);
6791 }
6792
6793 /**
6794  * Validate a flow supported by the NIC.
6795  *
6796  * @see rte_flow_validate()
6797  * @see rte_flow_ops
6798  */
6799 int
6800 mlx5_flow_validate(struct rte_eth_dev *dev,
6801                    const struct rte_flow_attr *attr,
6802                    const struct rte_flow_item items[],
6803                    const struct rte_flow_action original_actions[],
6804                    struct rte_flow_error *error)
6805 {
6806         int hairpin_flow;
6807         struct mlx5_translated_action_handle
6808                 indir_actions[MLX5_MAX_INDIRECT_ACTIONS];
6809         int indir_actions_n = MLX5_MAX_INDIRECT_ACTIONS;
6810         const struct rte_flow_action *actions;
6811         struct rte_flow_action *translated_actions = NULL;
6812         int ret = flow_action_handles_translate(dev, original_actions,
6813                                                 indir_actions,
6814                                                 &indir_actions_n,
6815                                                 &translated_actions, error);
6816
6817         if (ret)
6818                 return ret;
6819         actions = translated_actions ? translated_actions : original_actions;
6820         hairpin_flow = flow_check_hairpin_split(dev, attr, actions);
6821         ret = flow_drv_validate(dev, attr, items, actions,
6822                                 true, hairpin_flow, error);
6823         rte_free(translated_actions);
6824         return ret;
6825 }
6826
6827 /**
6828  * Create a flow.
6829  *
6830  * @see rte_flow_create()
6831  * @see rte_flow_ops
6832  */
6833 struct rte_flow *
6834 mlx5_flow_create(struct rte_eth_dev *dev,
6835                  const struct rte_flow_attr *attr,
6836                  const struct rte_flow_item items[],
6837                  const struct rte_flow_action actions[],
6838                  struct rte_flow_error *error)
6839 {
6840         /*
6841          * If the device is not started yet, it is not allowed to created a
6842          * flow from application. PMD default flows and traffic control flows
6843          * are not affected.
6844          */
6845         if (unlikely(!dev->data->dev_started)) {
6846                 DRV_LOG(DEBUG, "port %u is not started when "
6847                         "inserting a flow", dev->data->port_id);
6848                 rte_flow_error_set(error, ENODEV,
6849                                    RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
6850                                    NULL,
6851                                    "port not started");
6852                 return NULL;
6853         }
6854
6855         return (void *)(uintptr_t)flow_list_create(dev, MLX5_FLOW_TYPE_GEN,
6856                                                    attr, items, actions,
6857                                                    true, error);
6858 }
6859
6860 /**
6861  * Destroy a flow in a list.
6862  *
6863  * @param dev
6864  *   Pointer to Ethernet device.
6865  * @param[in] flow_idx
6866  *   Index of flow to destroy.
6867  */
6868 static void
6869 flow_list_destroy(struct rte_eth_dev *dev, enum mlx5_flow_type type,
6870                   uint32_t flow_idx)
6871 {
6872         struct mlx5_priv *priv = dev->data->dev_private;
6873         struct rte_flow *flow = mlx5_ipool_get(priv->flows[type], flow_idx);
6874
6875         if (!flow)
6876                 return;
6877         MLX5_ASSERT(flow->type == type);
6878         /*
6879          * Update RX queue flags only if port is started, otherwise it is
6880          * already clean.
6881          */
6882         if (dev->data->dev_started)
6883                 flow_rxq_flags_trim(dev, flow);
6884         flow_drv_destroy(dev, flow);
6885         if (flow->tunnel) {
6886                 struct mlx5_flow_tunnel *tunnel;
6887
6888                 tunnel = mlx5_find_tunnel_id(dev, flow->tunnel_id);
6889                 RTE_VERIFY(tunnel);
6890                 if (!__atomic_sub_fetch(&tunnel->refctn, 1, __ATOMIC_RELAXED))
6891                         mlx5_flow_tunnel_free(dev, tunnel);
6892         }
6893         flow_mreg_del_copy_action(dev, flow);
6894         mlx5_ipool_free(priv->flows[type], flow_idx);
6895 }
6896
6897 /**
6898  * Destroy all flows.
6899  *
6900  * @param dev
6901  *   Pointer to Ethernet device.
6902  * @param type
6903  *   Flow type to be flushed.
6904  * @param active
6905  *   If flushing is called actively.
6906  */
6907 void
6908 mlx5_flow_list_flush(struct rte_eth_dev *dev, enum mlx5_flow_type type,
6909                      bool active)
6910 {
6911         struct mlx5_priv *priv = dev->data->dev_private;
6912         uint32_t num_flushed = 0, fidx = 1;
6913         struct rte_flow *flow;
6914
6915         MLX5_IPOOL_FOREACH(priv->flows[type], fidx, flow) {
6916                 flow_list_destroy(dev, type, fidx);
6917                 num_flushed++;
6918         }
6919         if (active) {
6920                 DRV_LOG(INFO, "port %u: %u flows flushed before stopping",
6921                         dev->data->port_id, num_flushed);
6922         }
6923 }
6924
6925 /**
6926  * Stop all default actions for flows.
6927  *
6928  * @param dev
6929  *   Pointer to Ethernet device.
6930  */
6931 void
6932 mlx5_flow_stop_default(struct rte_eth_dev *dev)
6933 {
6934         flow_mreg_del_default_copy_action(dev);
6935         flow_rxq_flags_clear(dev);
6936 }
6937
6938 /**
6939  * Start all default actions for flows.
6940  *
6941  * @param dev
6942  *   Pointer to Ethernet device.
6943  * @return
6944  *   0 on success, a negative errno value otherwise and rte_errno is set.
6945  */
6946 int
6947 mlx5_flow_start_default(struct rte_eth_dev *dev)
6948 {
6949         struct rte_flow_error error;
6950
6951         /* Make sure default copy action (reg_c[0] -> reg_b) is created. */
6952         return flow_mreg_add_default_copy_action(dev, &error);
6953 }
6954
6955 /**
6956  * Release key of thread specific flow workspace data.
6957  */
6958 void
6959 flow_release_workspace(void *data)
6960 {
6961         struct mlx5_flow_workspace *wks = data;
6962         struct mlx5_flow_workspace *next;
6963
6964         while (wks) {
6965                 next = wks->next;
6966                 free(wks->rss_desc.queue);
6967                 free(wks);
6968                 wks = next;
6969         }
6970 }
6971
6972 /**
6973  * Get thread specific current flow workspace.
6974  *
6975  * @return pointer to thread specific flow workspace data, NULL on error.
6976  */
6977 struct mlx5_flow_workspace*
6978 mlx5_flow_get_thread_workspace(void)
6979 {
6980         struct mlx5_flow_workspace *data;
6981
6982         data = mlx5_flow_os_get_specific_workspace();
6983         MLX5_ASSERT(data && data->inuse);
6984         if (!data || !data->inuse)
6985                 DRV_LOG(ERR, "flow workspace not initialized.");
6986         return data;
6987 }
6988
6989 /**
6990  * Allocate and init new flow workspace.
6991  *
6992  * @return pointer to flow workspace data, NULL on error.
6993  */
6994 static struct mlx5_flow_workspace*
6995 flow_alloc_thread_workspace(void)
6996 {
6997         struct mlx5_flow_workspace *data = calloc(1, sizeof(*data));
6998
6999         if (!data) {
7000                 DRV_LOG(ERR, "Failed to allocate flow workspace "
7001                         "memory.");
7002                 return NULL;
7003         }
7004         data->rss_desc.queue = calloc(1,
7005                         sizeof(uint16_t) * MLX5_RSSQ_DEFAULT_NUM);
7006         if (!data->rss_desc.queue)
7007                 goto err;
7008         data->rssq_num = MLX5_RSSQ_DEFAULT_NUM;
7009         return data;
7010 err:
7011         free(data->rss_desc.queue);
7012         free(data);
7013         return NULL;
7014 }
7015
7016 /**
7017  * Get new thread specific flow workspace.
7018  *
7019  * If current workspace inuse, create new one and set as current.
7020  *
7021  * @return pointer to thread specific flow workspace data, NULL on error.
7022  */
7023 static struct mlx5_flow_workspace*
7024 mlx5_flow_push_thread_workspace(void)
7025 {
7026         struct mlx5_flow_workspace *curr;
7027         struct mlx5_flow_workspace *data;
7028
7029         curr = mlx5_flow_os_get_specific_workspace();
7030         if (!curr) {
7031                 data = flow_alloc_thread_workspace();
7032                 if (!data)
7033                         return NULL;
7034         } else if (!curr->inuse) {
7035                 data = curr;
7036         } else if (curr->next) {
7037                 data = curr->next;
7038         } else {
7039                 data = flow_alloc_thread_workspace();
7040                 if (!data)
7041                         return NULL;
7042                 curr->next = data;
7043                 data->prev = curr;
7044         }
7045         data->inuse = 1;
7046         data->flow_idx = 0;
7047         /* Set as current workspace */
7048         if (mlx5_flow_os_set_specific_workspace(data))
7049                 DRV_LOG(ERR, "Failed to set flow workspace to thread.");
7050         return data;
7051 }
7052
7053 /**
7054  * Close current thread specific flow workspace.
7055  *
7056  * If previous workspace available, set it as current.
7057  *
7058  * @return pointer to thread specific flow workspace data, NULL on error.
7059  */
7060 static void
7061 mlx5_flow_pop_thread_workspace(void)
7062 {
7063         struct mlx5_flow_workspace *data = mlx5_flow_get_thread_workspace();
7064
7065         if (!data)
7066                 return;
7067         if (!data->inuse) {
7068                 DRV_LOG(ERR, "Failed to close unused flow workspace.");
7069                 return;
7070         }
7071         data->inuse = 0;
7072         if (!data->prev)
7073                 return;
7074         if (mlx5_flow_os_set_specific_workspace(data->prev))
7075                 DRV_LOG(ERR, "Failed to set flow workspace to thread.");
7076 }
7077
7078 /**
7079  * Verify the flow list is empty
7080  *
7081  * @param dev
7082  *  Pointer to Ethernet device.
7083  *
7084  * @return the number of flows not released.
7085  */
7086 int
7087 mlx5_flow_verify(struct rte_eth_dev *dev __rte_unused)
7088 {
7089         struct mlx5_priv *priv = dev->data->dev_private;
7090         struct rte_flow *flow;
7091         uint32_t idx = 0;
7092         int ret = 0, i;
7093
7094         for (i = 0; i < MLX5_FLOW_TYPE_MAXI; i++) {
7095                 MLX5_IPOOL_FOREACH(priv->flows[i], idx, flow) {
7096                         DRV_LOG(DEBUG, "port %u flow %p still referenced",
7097                                 dev->data->port_id, (void *)flow);
7098                         ret++;
7099                 }
7100         }
7101         return ret;
7102 }
7103
7104 /**
7105  * Enable default hairpin egress flow.
7106  *
7107  * @param dev
7108  *   Pointer to Ethernet device.
7109  * @param queue
7110  *   The queue index.
7111  *
7112  * @return
7113  *   0 on success, a negative errno value otherwise and rte_errno is set.
7114  */
7115 int
7116 mlx5_ctrl_flow_source_queue(struct rte_eth_dev *dev,
7117                             uint32_t queue)
7118 {
7119         const struct rte_flow_attr attr = {
7120                 .egress = 1,
7121                 .priority = 0,
7122         };
7123         struct mlx5_rte_flow_item_tx_queue queue_spec = {
7124                 .queue = queue,
7125         };
7126         struct mlx5_rte_flow_item_tx_queue queue_mask = {
7127                 .queue = UINT32_MAX,
7128         };
7129         struct rte_flow_item items[] = {
7130                 {
7131                         .type = (enum rte_flow_item_type)
7132                                 MLX5_RTE_FLOW_ITEM_TYPE_TX_QUEUE,
7133                         .spec = &queue_spec,
7134                         .last = NULL,
7135                         .mask = &queue_mask,
7136                 },
7137                 {
7138                         .type = RTE_FLOW_ITEM_TYPE_END,
7139                 },
7140         };
7141         struct rte_flow_action_jump jump = {
7142                 .group = MLX5_HAIRPIN_TX_TABLE,
7143         };
7144         struct rte_flow_action actions[2];
7145         uint32_t flow_idx;
7146         struct rte_flow_error error;
7147
7148         actions[0].type = RTE_FLOW_ACTION_TYPE_JUMP;
7149         actions[0].conf = &jump;
7150         actions[1].type = RTE_FLOW_ACTION_TYPE_END;
7151         flow_idx = flow_list_create(dev, MLX5_FLOW_TYPE_CTL,
7152                                     &attr, items, actions, false, &error);
7153         if (!flow_idx) {
7154                 DRV_LOG(DEBUG,
7155                         "Failed to create ctrl flow: rte_errno(%d),"
7156                         " type(%d), message(%s)",
7157                         rte_errno, error.type,
7158                         error.message ? error.message : " (no stated reason)");
7159                 return -rte_errno;
7160         }
7161         return 0;
7162 }
7163
7164 /**
7165  * Enable a control flow configured from the control plane.
7166  *
7167  * @param dev
7168  *   Pointer to Ethernet device.
7169  * @param eth_spec
7170  *   An Ethernet flow spec to apply.
7171  * @param eth_mask
7172  *   An Ethernet flow mask to apply.
7173  * @param vlan_spec
7174  *   A VLAN flow spec to apply.
7175  * @param vlan_mask
7176  *   A VLAN flow mask to apply.
7177  *
7178  * @return
7179  *   0 on success, a negative errno value otherwise and rte_errno is set.
7180  */
7181 int
7182 mlx5_ctrl_flow_vlan(struct rte_eth_dev *dev,
7183                     struct rte_flow_item_eth *eth_spec,
7184                     struct rte_flow_item_eth *eth_mask,
7185                     struct rte_flow_item_vlan *vlan_spec,
7186                     struct rte_flow_item_vlan *vlan_mask)
7187 {
7188         struct mlx5_priv *priv = dev->data->dev_private;
7189         const struct rte_flow_attr attr = {
7190                 .ingress = 1,
7191                 .priority = MLX5_FLOW_LOWEST_PRIO_INDICATOR,
7192         };
7193         struct rte_flow_item items[] = {
7194                 {
7195                         .type = RTE_FLOW_ITEM_TYPE_ETH,
7196                         .spec = eth_spec,
7197                         .last = NULL,
7198                         .mask = eth_mask,
7199                 },
7200                 {
7201                         .type = (vlan_spec) ? RTE_FLOW_ITEM_TYPE_VLAN :
7202                                               RTE_FLOW_ITEM_TYPE_END,
7203                         .spec = vlan_spec,
7204                         .last = NULL,
7205                         .mask = vlan_mask,
7206                 },
7207                 {
7208                         .type = RTE_FLOW_ITEM_TYPE_END,
7209                 },
7210         };
7211         uint16_t queue[priv->reta_idx_n];
7212         struct rte_flow_action_rss action_rss = {
7213                 .func = RTE_ETH_HASH_FUNCTION_DEFAULT,
7214                 .level = 0,
7215                 .types = priv->rss_conf.rss_hf,
7216                 .key_len = priv->rss_conf.rss_key_len,
7217                 .queue_num = priv->reta_idx_n,
7218                 .key = priv->rss_conf.rss_key,
7219                 .queue = queue,
7220         };
7221         struct rte_flow_action actions[] = {
7222                 {
7223                         .type = RTE_FLOW_ACTION_TYPE_RSS,
7224                         .conf = &action_rss,
7225                 },
7226                 {
7227                         .type = RTE_FLOW_ACTION_TYPE_END,
7228                 },
7229         };
7230         uint32_t flow_idx;
7231         struct rte_flow_error error;
7232         unsigned int i;
7233
7234         if (!priv->reta_idx_n || !priv->rxqs_n) {
7235                 return 0;
7236         }
7237         if (!(dev->data->dev_conf.rxmode.mq_mode & RTE_ETH_MQ_RX_RSS_FLAG))
7238                 action_rss.types = 0;
7239         for (i = 0; i != priv->reta_idx_n; ++i)
7240                 queue[i] = (*priv->reta_idx)[i];
7241         flow_idx = flow_list_create(dev, MLX5_FLOW_TYPE_CTL,
7242                                     &attr, items, actions, false, &error);
7243         if (!flow_idx)
7244                 return -rte_errno;
7245         return 0;
7246 }
7247
7248 /**
7249  * Enable a flow control configured from the control plane.
7250  *
7251  * @param dev
7252  *   Pointer to Ethernet device.
7253  * @param eth_spec
7254  *   An Ethernet flow spec to apply.
7255  * @param eth_mask
7256  *   An Ethernet flow mask to apply.
7257  *
7258  * @return
7259  *   0 on success, a negative errno value otherwise and rte_errno is set.
7260  */
7261 int
7262 mlx5_ctrl_flow(struct rte_eth_dev *dev,
7263                struct rte_flow_item_eth *eth_spec,
7264                struct rte_flow_item_eth *eth_mask)
7265 {
7266         return mlx5_ctrl_flow_vlan(dev, eth_spec, eth_mask, NULL, NULL);
7267 }
7268
7269 /**
7270  * Create default miss flow rule matching lacp traffic
7271  *
7272  * @param dev
7273  *   Pointer to Ethernet device.
7274  * @param eth_spec
7275  *   An Ethernet flow spec to apply.
7276  *
7277  * @return
7278  *   0 on success, a negative errno value otherwise and rte_errno is set.
7279  */
7280 int
7281 mlx5_flow_lacp_miss(struct rte_eth_dev *dev)
7282 {
7283         /*
7284          * The LACP matching is done by only using ether type since using
7285          * a multicast dst mac causes kernel to give low priority to this flow.
7286          */
7287         static const struct rte_flow_item_eth lacp_spec = {
7288                 .type = RTE_BE16(0x8809),
7289         };
7290         static const struct rte_flow_item_eth lacp_mask = {
7291                 .type = 0xffff,
7292         };
7293         const struct rte_flow_attr attr = {
7294                 .ingress = 1,
7295         };
7296         struct rte_flow_item items[] = {
7297                 {
7298                         .type = RTE_FLOW_ITEM_TYPE_ETH,
7299                         .spec = &lacp_spec,
7300                         .mask = &lacp_mask,
7301                 },
7302                 {
7303                         .type = RTE_FLOW_ITEM_TYPE_END,
7304                 },
7305         };
7306         struct rte_flow_action actions[] = {
7307                 {
7308                         .type = (enum rte_flow_action_type)
7309                                 MLX5_RTE_FLOW_ACTION_TYPE_DEFAULT_MISS,
7310                 },
7311                 {
7312                         .type = RTE_FLOW_ACTION_TYPE_END,
7313                 },
7314         };
7315         struct rte_flow_error error;
7316         uint32_t flow_idx = flow_list_create(dev, MLX5_FLOW_TYPE_CTL,
7317                                         &attr, items, actions,
7318                                         false, &error);
7319
7320         if (!flow_idx)
7321                 return -rte_errno;
7322         return 0;
7323 }
7324
7325 /**
7326  * Destroy a flow.
7327  *
7328  * @see rte_flow_destroy()
7329  * @see rte_flow_ops
7330  */
7331 int
7332 mlx5_flow_destroy(struct rte_eth_dev *dev,
7333                   struct rte_flow *flow,
7334                   struct rte_flow_error *error __rte_unused)
7335 {
7336         flow_list_destroy(dev, MLX5_FLOW_TYPE_GEN,
7337                                 (uintptr_t)(void *)flow);
7338         return 0;
7339 }
7340
7341 /**
7342  * Destroy all flows.
7343  *
7344  * @see rte_flow_flush()
7345  * @see rte_flow_ops
7346  */
7347 int
7348 mlx5_flow_flush(struct rte_eth_dev *dev,
7349                 struct rte_flow_error *error __rte_unused)
7350 {
7351         mlx5_flow_list_flush(dev, MLX5_FLOW_TYPE_GEN, false);
7352         return 0;
7353 }
7354
7355 /**
7356  * Isolated mode.
7357  *
7358  * @see rte_flow_isolate()
7359  * @see rte_flow_ops
7360  */
7361 int
7362 mlx5_flow_isolate(struct rte_eth_dev *dev,
7363                   int enable,
7364                   struct rte_flow_error *error)
7365 {
7366         struct mlx5_priv *priv = dev->data->dev_private;
7367
7368         if (dev->data->dev_started) {
7369                 rte_flow_error_set(error, EBUSY,
7370                                    RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
7371                                    NULL,
7372                                    "port must be stopped first");
7373                 return -rte_errno;
7374         }
7375         priv->isolated = !!enable;
7376         if (enable)
7377                 dev->dev_ops = &mlx5_dev_ops_isolate;
7378         else
7379                 dev->dev_ops = &mlx5_dev_ops;
7380
7381         dev->rx_descriptor_status = mlx5_rx_descriptor_status;
7382         dev->tx_descriptor_status = mlx5_tx_descriptor_status;
7383
7384         return 0;
7385 }
7386
7387 /**
7388  * Query a flow.
7389  *
7390  * @see rte_flow_query()
7391  * @see rte_flow_ops
7392  */
7393 static int
7394 flow_drv_query(struct rte_eth_dev *dev,
7395                uint32_t flow_idx,
7396                const struct rte_flow_action *actions,
7397                void *data,
7398                struct rte_flow_error *error)
7399 {
7400         struct mlx5_priv *priv = dev->data->dev_private;
7401         const struct mlx5_flow_driver_ops *fops;
7402         struct rte_flow *flow = mlx5_ipool_get(priv->flows[MLX5_FLOW_TYPE_GEN],
7403                                                flow_idx);
7404         enum mlx5_flow_drv_type ftype;
7405
7406         if (!flow) {
7407                 return rte_flow_error_set(error, ENOENT,
7408                           RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
7409                           NULL,
7410                           "invalid flow handle");
7411         }
7412         ftype = flow->drv_type;
7413         MLX5_ASSERT(ftype > MLX5_FLOW_TYPE_MIN && ftype < MLX5_FLOW_TYPE_MAX);
7414         fops = flow_get_drv_ops(ftype);
7415
7416         return fops->query(dev, flow, actions, data, error);
7417 }
7418
7419 /**
7420  * Query a flow.
7421  *
7422  * @see rte_flow_query()
7423  * @see rte_flow_ops
7424  */
7425 int
7426 mlx5_flow_query(struct rte_eth_dev *dev,
7427                 struct rte_flow *flow,
7428                 const struct rte_flow_action *actions,
7429                 void *data,
7430                 struct rte_flow_error *error)
7431 {
7432         int ret;
7433
7434         ret = flow_drv_query(dev, (uintptr_t)(void *)flow, actions, data,
7435                              error);
7436         if (ret < 0)
7437                 return ret;
7438         return 0;
7439 }
7440
7441 /**
7442  * Get rte_flow callbacks.
7443  *
7444  * @param dev
7445  *   Pointer to Ethernet device structure.
7446  * @param ops
7447  *   Pointer to operation-specific structure.
7448  *
7449  * @return 0
7450  */
7451 int
7452 mlx5_flow_ops_get(struct rte_eth_dev *dev __rte_unused,
7453                   const struct rte_flow_ops **ops)
7454 {
7455         *ops = &mlx5_flow_ops;
7456         return 0;
7457 }
7458
7459 /**
7460  * Validate meter policy actions.
7461  * Dispatcher for action type specific validation.
7462  *
7463  * @param[in] dev
7464  *   Pointer to the Ethernet device structure.
7465  * @param[in] action
7466  *   The meter policy action object to validate.
7467  * @param[in] attr
7468  *   Attributes of flow to determine steering domain.
7469  * @param[out] is_rss
7470  *   Is RSS or not.
7471  * @param[out] domain_bitmap
7472  *   Domain bitmap.
7473  * @param[out] is_def_policy
7474  *   Is default policy or not.
7475  * @param[out] error
7476  *   Perform verbose error reporting if not NULL. Initialized in case of
7477  *   error only.
7478  *
7479  * @return
7480  *   0 on success, otherwise negative errno value.
7481  */
7482 int
7483 mlx5_flow_validate_mtr_acts(struct rte_eth_dev *dev,
7484                         const struct rte_flow_action *actions[RTE_COLORS],
7485                         struct rte_flow_attr *attr,
7486                         bool *is_rss,
7487                         uint8_t *domain_bitmap,
7488                         uint8_t *policy_mode,
7489                         struct rte_mtr_error *error)
7490 {
7491         const struct mlx5_flow_driver_ops *fops;
7492
7493         fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
7494         return fops->validate_mtr_acts(dev, actions, attr, is_rss,
7495                                        domain_bitmap, policy_mode, error);
7496 }
7497
7498 /**
7499  * Destroy the meter table set.
7500  *
7501  * @param[in] dev
7502  *   Pointer to Ethernet device.
7503  * @param[in] mtr_policy
7504  *   Meter policy struct.
7505  */
7506 void
7507 mlx5_flow_destroy_mtr_acts(struct rte_eth_dev *dev,
7508                       struct mlx5_flow_meter_policy *mtr_policy)
7509 {
7510         const struct mlx5_flow_driver_ops *fops;
7511
7512         fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
7513         fops->destroy_mtr_acts(dev, mtr_policy);
7514 }
7515
7516 /**
7517  * Create policy action, lock free,
7518  * (mutex should be acquired by caller).
7519  * Dispatcher for action type specific call.
7520  *
7521  * @param[in] dev
7522  *   Pointer to the Ethernet device structure.
7523  * @param[in] mtr_policy
7524  *   Meter policy struct.
7525  * @param[in] action
7526  *   Action specification used to create meter actions.
7527  * @param[out] error
7528  *   Perform verbose error reporting if not NULL. Initialized in case of
7529  *   error only.
7530  *
7531  * @return
7532  *   0 on success, otherwise negative errno value.
7533  */
7534 int
7535 mlx5_flow_create_mtr_acts(struct rte_eth_dev *dev,
7536                       struct mlx5_flow_meter_policy *mtr_policy,
7537                       const struct rte_flow_action *actions[RTE_COLORS],
7538                       struct rte_mtr_error *error)
7539 {
7540         const struct mlx5_flow_driver_ops *fops;
7541
7542         fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
7543         return fops->create_mtr_acts(dev, mtr_policy, actions, error);
7544 }
7545
7546 /**
7547  * Create policy rules, lock free,
7548  * (mutex should be acquired by caller).
7549  * Dispatcher for action type specific call.
7550  *
7551  * @param[in] dev
7552  *   Pointer to the Ethernet device structure.
7553  * @param[in] mtr_policy
7554  *   Meter policy struct.
7555  *
7556  * @return
7557  *   0 on success, -1 otherwise.
7558  */
7559 int
7560 mlx5_flow_create_policy_rules(struct rte_eth_dev *dev,
7561                              struct mlx5_flow_meter_policy *mtr_policy)
7562 {
7563         const struct mlx5_flow_driver_ops *fops;
7564
7565         fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
7566         return fops->create_policy_rules(dev, mtr_policy);
7567 }
7568
7569 /**
7570  * Destroy policy rules, lock free,
7571  * (mutex should be acquired by caller).
7572  * Dispatcher for action type specific call.
7573  *
7574  * @param[in] dev
7575  *   Pointer to the Ethernet device structure.
7576  * @param[in] mtr_policy
7577  *   Meter policy struct.
7578  */
7579 void
7580 mlx5_flow_destroy_policy_rules(struct rte_eth_dev *dev,
7581                              struct mlx5_flow_meter_policy *mtr_policy)
7582 {
7583         const struct mlx5_flow_driver_ops *fops;
7584
7585         fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
7586         fops->destroy_policy_rules(dev, mtr_policy);
7587 }
7588
7589 /**
7590  * Destroy the default policy table set.
7591  *
7592  * @param[in] dev
7593  *   Pointer to Ethernet device.
7594  */
7595 void
7596 mlx5_flow_destroy_def_policy(struct rte_eth_dev *dev)
7597 {
7598         const struct mlx5_flow_driver_ops *fops;
7599
7600         fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
7601         fops->destroy_def_policy(dev);
7602 }
7603
7604 /**
7605  * Destroy the default policy table set.
7606  *
7607  * @param[in] dev
7608  *   Pointer to Ethernet device.
7609  *
7610  * @return
7611  *   0 on success, -1 otherwise.
7612  */
7613 int
7614 mlx5_flow_create_def_policy(struct rte_eth_dev *dev)
7615 {
7616         const struct mlx5_flow_driver_ops *fops;
7617
7618         fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
7619         return fops->create_def_policy(dev);
7620 }
7621
7622 /**
7623  * Create the needed meter and suffix tables.
7624  *
7625  * @param[in] dev
7626  *   Pointer to Ethernet device.
7627  *
7628  * @return
7629  *   0 on success, -1 otherwise.
7630  */
7631 int
7632 mlx5_flow_create_mtr_tbls(struct rte_eth_dev *dev,
7633                         struct mlx5_flow_meter_info *fm,
7634                         uint32_t mtr_idx,
7635                         uint8_t domain_bitmap)
7636 {
7637         const struct mlx5_flow_driver_ops *fops;
7638
7639         fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
7640         return fops->create_mtr_tbls(dev, fm, mtr_idx, domain_bitmap);
7641 }
7642
7643 /**
7644  * Destroy the meter table set.
7645  *
7646  * @param[in] dev
7647  *   Pointer to Ethernet device.
7648  * @param[in] tbl
7649  *   Pointer to the meter table set.
7650  */
7651 void
7652 mlx5_flow_destroy_mtr_tbls(struct rte_eth_dev *dev,
7653                            struct mlx5_flow_meter_info *fm)
7654 {
7655         const struct mlx5_flow_driver_ops *fops;
7656
7657         fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
7658         fops->destroy_mtr_tbls(dev, fm);
7659 }
7660
7661 /**
7662  * Destroy the global meter drop table.
7663  *
7664  * @param[in] dev
7665  *   Pointer to Ethernet device.
7666  */
7667 void
7668 mlx5_flow_destroy_mtr_drop_tbls(struct rte_eth_dev *dev)
7669 {
7670         const struct mlx5_flow_driver_ops *fops;
7671
7672         fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
7673         fops->destroy_mtr_drop_tbls(dev);
7674 }
7675
7676 /**
7677  * Destroy the sub policy table with RX queue.
7678  *
7679  * @param[in] dev
7680  *   Pointer to Ethernet device.
7681  * @param[in] mtr_policy
7682  *   Pointer to meter policy table.
7683  */
7684 void
7685 mlx5_flow_destroy_sub_policy_with_rxq(struct rte_eth_dev *dev,
7686                 struct mlx5_flow_meter_policy *mtr_policy)
7687 {
7688         const struct mlx5_flow_driver_ops *fops;
7689
7690         fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
7691         fops->destroy_sub_policy_with_rxq(dev, mtr_policy);
7692 }
7693
7694 /**
7695  * Allocate the needed aso flow meter id.
7696  *
7697  * @param[in] dev
7698  *   Pointer to Ethernet device.
7699  *
7700  * @return
7701  *   Index to aso flow meter on success, NULL otherwise.
7702  */
7703 uint32_t
7704 mlx5_flow_mtr_alloc(struct rte_eth_dev *dev)
7705 {
7706         const struct mlx5_flow_driver_ops *fops;
7707
7708         fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
7709         return fops->create_meter(dev);
7710 }
7711
7712 /**
7713  * Free the aso flow meter id.
7714  *
7715  * @param[in] dev
7716  *   Pointer to Ethernet device.
7717  * @param[in] mtr_idx
7718  *  Index to aso flow meter to be free.
7719  *
7720  * @return
7721  *   0 on success.
7722  */
7723 void
7724 mlx5_flow_mtr_free(struct rte_eth_dev *dev, uint32_t mtr_idx)
7725 {
7726         const struct mlx5_flow_driver_ops *fops;
7727
7728         fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
7729         fops->free_meter(dev, mtr_idx);
7730 }
7731
7732 /**
7733  * Allocate a counter.
7734  *
7735  * @param[in] dev
7736  *   Pointer to Ethernet device structure.
7737  *
7738  * @return
7739  *   Index to allocated counter  on success, 0 otherwise.
7740  */
7741 uint32_t
7742 mlx5_counter_alloc(struct rte_eth_dev *dev)
7743 {
7744         const struct mlx5_flow_driver_ops *fops;
7745         struct rte_flow_attr attr = { .transfer = 0 };
7746
7747         if (flow_get_drv_type(dev, &attr) == MLX5_FLOW_TYPE_DV) {
7748                 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
7749                 return fops->counter_alloc(dev);
7750         }
7751         DRV_LOG(ERR,
7752                 "port %u counter allocate is not supported.",
7753                  dev->data->port_id);
7754         return 0;
7755 }
7756
7757 /**
7758  * Free a counter.
7759  *
7760  * @param[in] dev
7761  *   Pointer to Ethernet device structure.
7762  * @param[in] cnt
7763  *   Index to counter to be free.
7764  */
7765 void
7766 mlx5_counter_free(struct rte_eth_dev *dev, uint32_t cnt)
7767 {
7768         const struct mlx5_flow_driver_ops *fops;
7769         struct rte_flow_attr attr = { .transfer = 0 };
7770
7771         if (flow_get_drv_type(dev, &attr) == MLX5_FLOW_TYPE_DV) {
7772                 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
7773                 fops->counter_free(dev, cnt);
7774                 return;
7775         }
7776         DRV_LOG(ERR,
7777                 "port %u counter free is not supported.",
7778                  dev->data->port_id);
7779 }
7780
7781 /**
7782  * Query counter statistics.
7783  *
7784  * @param[in] dev
7785  *   Pointer to Ethernet device structure.
7786  * @param[in] cnt
7787  *   Index to counter to query.
7788  * @param[in] clear
7789  *   Set to clear counter statistics.
7790  * @param[out] pkts
7791  *   The counter hits packets number to save.
7792  * @param[out] bytes
7793  *   The counter hits bytes number to save.
7794  *
7795  * @return
7796  *   0 on success, a negative errno value otherwise.
7797  */
7798 int
7799 mlx5_counter_query(struct rte_eth_dev *dev, uint32_t cnt,
7800                    bool clear, uint64_t *pkts, uint64_t *bytes)
7801 {
7802         const struct mlx5_flow_driver_ops *fops;
7803         struct rte_flow_attr attr = { .transfer = 0 };
7804
7805         if (flow_get_drv_type(dev, &attr) == MLX5_FLOW_TYPE_DV) {
7806                 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
7807                 return fops->counter_query(dev, cnt, clear, pkts, bytes);
7808         }
7809         DRV_LOG(ERR,
7810                 "port %u counter query is not supported.",
7811                  dev->data->port_id);
7812         return -ENOTSUP;
7813 }
7814
7815 /**
7816  * Allocate a new memory for the counter values wrapped by all the needed
7817  * management.
7818  *
7819  * @param[in] sh
7820  *   Pointer to mlx5_dev_ctx_shared object.
7821  *
7822  * @return
7823  *   0 on success, a negative errno value otherwise.
7824  */
7825 static int
7826 mlx5_flow_create_counter_stat_mem_mng(struct mlx5_dev_ctx_shared *sh)
7827 {
7828         struct mlx5_counter_stats_mem_mng *mem_mng;
7829         volatile struct flow_counter_stats *raw_data;
7830         int raws_n = MLX5_CNT_CONTAINER_RESIZE + MLX5_MAX_PENDING_QUERIES;
7831         int size = (sizeof(struct flow_counter_stats) *
7832                         MLX5_COUNTERS_PER_POOL +
7833                         sizeof(struct mlx5_counter_stats_raw)) * raws_n +
7834                         sizeof(struct mlx5_counter_stats_mem_mng);
7835         size_t pgsize = rte_mem_page_size();
7836         uint8_t *mem;
7837         int ret;
7838         int i;
7839
7840         if (pgsize == (size_t)-1) {
7841                 DRV_LOG(ERR, "Failed to get mem page size");
7842                 rte_errno = ENOMEM;
7843                 return -ENOMEM;
7844         }
7845         mem = mlx5_malloc(MLX5_MEM_ZERO, size, pgsize, SOCKET_ID_ANY);
7846         if (!mem) {
7847                 rte_errno = ENOMEM;
7848                 return -ENOMEM;
7849         }
7850         mem_mng = (struct mlx5_counter_stats_mem_mng *)(mem + size) - 1;
7851         size = sizeof(*raw_data) * MLX5_COUNTERS_PER_POOL * raws_n;
7852         ret = mlx5_os_wrapped_mkey_create(sh->cdev->ctx, sh->cdev->pd,
7853                                           sh->cdev->pdn, mem, size,
7854                                           &mem_mng->wm);
7855         if (ret) {
7856                 rte_errno = errno;
7857                 mlx5_free(mem);
7858                 return -rte_errno;
7859         }
7860         mem_mng->raws = (struct mlx5_counter_stats_raw *)(mem + size);
7861         raw_data = (volatile struct flow_counter_stats *)mem;
7862         for (i = 0; i < raws_n; ++i) {
7863                 mem_mng->raws[i].mem_mng = mem_mng;
7864                 mem_mng->raws[i].data = raw_data + i * MLX5_COUNTERS_PER_POOL;
7865         }
7866         for (i = 0; i < MLX5_MAX_PENDING_QUERIES; ++i)
7867                 LIST_INSERT_HEAD(&sh->cmng.free_stat_raws,
7868                                  mem_mng->raws + MLX5_CNT_CONTAINER_RESIZE + i,
7869                                  next);
7870         LIST_INSERT_HEAD(&sh->cmng.mem_mngs, mem_mng, next);
7871         sh->cmng.mem_mng = mem_mng;
7872         return 0;
7873 }
7874
7875 /**
7876  * Set the statistic memory to the new counter pool.
7877  *
7878  * @param[in] sh
7879  *   Pointer to mlx5_dev_ctx_shared object.
7880  * @param[in] pool
7881  *   Pointer to the pool to set the statistic memory.
7882  *
7883  * @return
7884  *   0 on success, a negative errno value otherwise.
7885  */
7886 static int
7887 mlx5_flow_set_counter_stat_mem(struct mlx5_dev_ctx_shared *sh,
7888                                struct mlx5_flow_counter_pool *pool)
7889 {
7890         struct mlx5_flow_counter_mng *cmng = &sh->cmng;
7891         /* Resize statistic memory once used out. */
7892         if (!(pool->index % MLX5_CNT_CONTAINER_RESIZE) &&
7893             mlx5_flow_create_counter_stat_mem_mng(sh)) {
7894                 DRV_LOG(ERR, "Cannot resize counter stat mem.");
7895                 return -1;
7896         }
7897         rte_spinlock_lock(&pool->sl);
7898         pool->raw = cmng->mem_mng->raws + pool->index %
7899                     MLX5_CNT_CONTAINER_RESIZE;
7900         rte_spinlock_unlock(&pool->sl);
7901         pool->raw_hw = NULL;
7902         return 0;
7903 }
7904
7905 #define MLX5_POOL_QUERY_FREQ_US 1000000
7906
7907 /**
7908  * Set the periodic procedure for triggering asynchronous batch queries for all
7909  * the counter pools.
7910  *
7911  * @param[in] sh
7912  *   Pointer to mlx5_dev_ctx_shared object.
7913  */
7914 void
7915 mlx5_set_query_alarm(struct mlx5_dev_ctx_shared *sh)
7916 {
7917         uint32_t pools_n, us;
7918
7919         pools_n = __atomic_load_n(&sh->cmng.n_valid, __ATOMIC_RELAXED);
7920         us = MLX5_POOL_QUERY_FREQ_US / pools_n;
7921         DRV_LOG(DEBUG, "Set alarm for %u pools each %u us", pools_n, us);
7922         if (rte_eal_alarm_set(us, mlx5_flow_query_alarm, sh)) {
7923                 sh->cmng.query_thread_on = 0;
7924                 DRV_LOG(ERR, "Cannot reinitialize query alarm");
7925         } else {
7926                 sh->cmng.query_thread_on = 1;
7927         }
7928 }
7929
7930 /**
7931  * The periodic procedure for triggering asynchronous batch queries for all the
7932  * counter pools. This function is probably called by the host thread.
7933  *
7934  * @param[in] arg
7935  *   The parameter for the alarm process.
7936  */
7937 void
7938 mlx5_flow_query_alarm(void *arg)
7939 {
7940         struct mlx5_dev_ctx_shared *sh = arg;
7941         int ret;
7942         uint16_t pool_index = sh->cmng.pool_index;
7943         struct mlx5_flow_counter_mng *cmng = &sh->cmng;
7944         struct mlx5_flow_counter_pool *pool;
7945         uint16_t n_valid;
7946
7947         if (sh->cmng.pending_queries >= MLX5_MAX_PENDING_QUERIES)
7948                 goto set_alarm;
7949         rte_spinlock_lock(&cmng->pool_update_sl);
7950         pool = cmng->pools[pool_index];
7951         n_valid = cmng->n_valid;
7952         rte_spinlock_unlock(&cmng->pool_update_sl);
7953         /* Set the statistic memory to the new created pool. */
7954         if ((!pool->raw && mlx5_flow_set_counter_stat_mem(sh, pool)))
7955                 goto set_alarm;
7956         if (pool->raw_hw)
7957                 /* There is a pool query in progress. */
7958                 goto set_alarm;
7959         pool->raw_hw =
7960                 LIST_FIRST(&sh->cmng.free_stat_raws);
7961         if (!pool->raw_hw)
7962                 /* No free counter statistics raw memory. */
7963                 goto set_alarm;
7964         /*
7965          * Identify the counters released between query trigger and query
7966          * handle more efficiently. The counter released in this gap period
7967          * should wait for a new round of query as the new arrived packets
7968          * will not be taken into account.
7969          */
7970         pool->query_gen++;
7971         ret = mlx5_devx_cmd_flow_counter_query(pool->min_dcs, 0,
7972                                                MLX5_COUNTERS_PER_POOL,
7973                                                NULL, NULL,
7974                                                pool->raw_hw->mem_mng->wm.lkey,
7975                                                (void *)(uintptr_t)
7976                                                pool->raw_hw->data,
7977                                                sh->devx_comp,
7978                                                (uint64_t)(uintptr_t)pool);
7979         if (ret) {
7980                 DRV_LOG(ERR, "Failed to trigger asynchronous query for dcs ID"
7981                         " %d", pool->min_dcs->id);
7982                 pool->raw_hw = NULL;
7983                 goto set_alarm;
7984         }
7985         LIST_REMOVE(pool->raw_hw, next);
7986         sh->cmng.pending_queries++;
7987         pool_index++;
7988         if (pool_index >= n_valid)
7989                 pool_index = 0;
7990 set_alarm:
7991         sh->cmng.pool_index = pool_index;
7992         mlx5_set_query_alarm(sh);
7993 }
7994
7995 /**
7996  * Check and callback event for new aged flow in the counter pool
7997  *
7998  * @param[in] sh
7999  *   Pointer to mlx5_dev_ctx_shared object.
8000  * @param[in] pool
8001  *   Pointer to Current counter pool.
8002  */
8003 static void
8004 mlx5_flow_aging_check(struct mlx5_dev_ctx_shared *sh,
8005                    struct mlx5_flow_counter_pool *pool)
8006 {
8007         struct mlx5_priv *priv;
8008         struct mlx5_flow_counter *cnt;
8009         struct mlx5_age_info *age_info;
8010         struct mlx5_age_param *age_param;
8011         struct mlx5_counter_stats_raw *cur = pool->raw_hw;
8012         struct mlx5_counter_stats_raw *prev = pool->raw;
8013         const uint64_t curr_time = MLX5_CURR_TIME_SEC;
8014         const uint32_t time_delta = curr_time - pool->time_of_last_age_check;
8015         uint16_t expected = AGE_CANDIDATE;
8016         uint32_t i;
8017
8018         pool->time_of_last_age_check = curr_time;
8019         for (i = 0; i < MLX5_COUNTERS_PER_POOL; ++i) {
8020                 cnt = MLX5_POOL_GET_CNT(pool, i);
8021                 age_param = MLX5_CNT_TO_AGE(cnt);
8022                 if (__atomic_load_n(&age_param->state,
8023                                     __ATOMIC_RELAXED) != AGE_CANDIDATE)
8024                         continue;
8025                 if (cur->data[i].hits != prev->data[i].hits) {
8026                         __atomic_store_n(&age_param->sec_since_last_hit, 0,
8027                                          __ATOMIC_RELAXED);
8028                         continue;
8029                 }
8030                 if (__atomic_add_fetch(&age_param->sec_since_last_hit,
8031                                        time_delta,
8032                                        __ATOMIC_RELAXED) <= age_param->timeout)
8033                         continue;
8034                 /**
8035                  * Hold the lock first, or if between the
8036                  * state AGE_TMOUT and tailq operation the
8037                  * release happened, the release procedure
8038                  * may delete a non-existent tailq node.
8039                  */
8040                 priv = rte_eth_devices[age_param->port_id].data->dev_private;
8041                 age_info = GET_PORT_AGE_INFO(priv);
8042                 rte_spinlock_lock(&age_info->aged_sl);
8043                 if (__atomic_compare_exchange_n(&age_param->state, &expected,
8044                                                 AGE_TMOUT, false,
8045                                                 __ATOMIC_RELAXED,
8046                                                 __ATOMIC_RELAXED)) {
8047                         TAILQ_INSERT_TAIL(&age_info->aged_counters, cnt, next);
8048                         MLX5_AGE_SET(age_info, MLX5_AGE_EVENT_NEW);
8049                 }
8050                 rte_spinlock_unlock(&age_info->aged_sl);
8051         }
8052         mlx5_age_event_prepare(sh);
8053 }
8054
8055 /**
8056  * Handler for the HW respond about ready values from an asynchronous batch
8057  * query. This function is probably called by the host thread.
8058  *
8059  * @param[in] sh
8060  *   The pointer to the shared device context.
8061  * @param[in] async_id
8062  *   The Devx async ID.
8063  * @param[in] status
8064  *   The status of the completion.
8065  */
8066 void
8067 mlx5_flow_async_pool_query_handle(struct mlx5_dev_ctx_shared *sh,
8068                                   uint64_t async_id, int status)
8069 {
8070         struct mlx5_flow_counter_pool *pool =
8071                 (struct mlx5_flow_counter_pool *)(uintptr_t)async_id;
8072         struct mlx5_counter_stats_raw *raw_to_free;
8073         uint8_t query_gen = pool->query_gen ^ 1;
8074         struct mlx5_flow_counter_mng *cmng = &sh->cmng;
8075         enum mlx5_counter_type cnt_type =
8076                 pool->is_aged ? MLX5_COUNTER_TYPE_AGE :
8077                                 MLX5_COUNTER_TYPE_ORIGIN;
8078
8079         if (unlikely(status)) {
8080                 raw_to_free = pool->raw_hw;
8081         } else {
8082                 raw_to_free = pool->raw;
8083                 if (pool->is_aged)
8084                         mlx5_flow_aging_check(sh, pool);
8085                 rte_spinlock_lock(&pool->sl);
8086                 pool->raw = pool->raw_hw;
8087                 rte_spinlock_unlock(&pool->sl);
8088                 /* Be sure the new raw counters data is updated in memory. */
8089                 rte_io_wmb();
8090                 if (!TAILQ_EMPTY(&pool->counters[query_gen])) {
8091                         rte_spinlock_lock(&cmng->csl[cnt_type]);
8092                         TAILQ_CONCAT(&cmng->counters[cnt_type],
8093                                      &pool->counters[query_gen], next);
8094                         rte_spinlock_unlock(&cmng->csl[cnt_type]);
8095                 }
8096         }
8097         LIST_INSERT_HEAD(&sh->cmng.free_stat_raws, raw_to_free, next);
8098         pool->raw_hw = NULL;
8099         sh->cmng.pending_queries--;
8100 }
8101
8102 static int
8103 flow_group_to_table(uint32_t port_id, uint32_t group, uint32_t *table,
8104                     const struct flow_grp_info *grp_info,
8105                     struct rte_flow_error *error)
8106 {
8107         if (grp_info->transfer && grp_info->external &&
8108             grp_info->fdb_def_rule) {
8109                 if (group == UINT32_MAX)
8110                         return rte_flow_error_set
8111                                                 (error, EINVAL,
8112                                                  RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
8113                                                  NULL,
8114                                                  "group index not supported");
8115                 *table = group + 1;
8116         } else {
8117                 *table = group;
8118         }
8119         DRV_LOG(DEBUG, "port %u group=%#x table=%#x", port_id, group, *table);
8120         return 0;
8121 }
8122
8123 /**
8124  * Translate the rte_flow group index to HW table value.
8125  *
8126  * If tunnel offload is disabled, all group ids converted to flow table
8127  * id using the standard method.
8128  * If tunnel offload is enabled, group id can be converted using the
8129  * standard or tunnel conversion method. Group conversion method
8130  * selection depends on flags in `grp_info` parameter:
8131  * - Internal (grp_info.external == 0) groups conversion uses the
8132  *   standard method.
8133  * - Group ids in JUMP action converted with the tunnel conversion.
8134  * - Group id in rule attribute conversion depends on a rule type and
8135  *   group id value:
8136  *   ** non zero group attributes converted with the tunnel method
8137  *   ** zero group attribute in non-tunnel rule is converted using the
8138  *      standard method - there's only one root table
8139  *   ** zero group attribute in steer tunnel rule is converted with the
8140  *      standard method - single root table
8141  *   ** zero group attribute in match tunnel rule is a special OvS
8142  *      case: that value is used for portability reasons. That group
8143  *      id is converted with the tunnel conversion method.
8144  *
8145  * @param[in] dev
8146  *   Port device
8147  * @param[in] tunnel
8148  *   PMD tunnel offload object
8149  * @param[in] group
8150  *   rte_flow group index value.
8151  * @param[out] table
8152  *   HW table value.
8153  * @param[in] grp_info
8154  *   flags used for conversion
8155  * @param[out] error
8156  *   Pointer to error structure.
8157  *
8158  * @return
8159  *   0 on success, a negative errno value otherwise and rte_errno is set.
8160  */
8161 int
8162 mlx5_flow_group_to_table(struct rte_eth_dev *dev,
8163                          const struct mlx5_flow_tunnel *tunnel,
8164                          uint32_t group, uint32_t *table,
8165                          const struct flow_grp_info *grp_info,
8166                          struct rte_flow_error *error)
8167 {
8168         int ret;
8169         bool standard_translation;
8170
8171         if (!grp_info->skip_scale && grp_info->external &&
8172             group < MLX5_MAX_TABLES_EXTERNAL)
8173                 group *= MLX5_FLOW_TABLE_FACTOR;
8174         if (is_tunnel_offload_active(dev)) {
8175                 standard_translation = !grp_info->external ||
8176                                         grp_info->std_tbl_fix;
8177         } else {
8178                 standard_translation = true;
8179         }
8180         DRV_LOG(DEBUG,
8181                 "port %u group=%u transfer=%d external=%d fdb_def_rule=%d translate=%s",
8182                 dev->data->port_id, group, grp_info->transfer,
8183                 grp_info->external, grp_info->fdb_def_rule,
8184                 standard_translation ? "STANDARD" : "TUNNEL");
8185         if (standard_translation)
8186                 ret = flow_group_to_table(dev->data->port_id, group, table,
8187                                           grp_info, error);
8188         else
8189                 ret = tunnel_flow_group_to_flow_table(dev, tunnel, group,
8190                                                       table, error);
8191
8192         return ret;
8193 }
8194
8195 /**
8196  * Discover availability of metadata reg_c's.
8197  *
8198  * Iteratively use test flows to check availability.
8199  *
8200  * @param[in] dev
8201  *   Pointer to the Ethernet device structure.
8202  *
8203  * @return
8204  *   0 on success, a negative errno value otherwise and rte_errno is set.
8205  */
8206 int
8207 mlx5_flow_discover_mreg_c(struct rte_eth_dev *dev)
8208 {
8209         struct mlx5_priv *priv = dev->data->dev_private;
8210         enum modify_reg idx;
8211         int n = 0;
8212
8213         /* reg_c[0] and reg_c[1] are reserved. */
8214         priv->sh->flow_mreg_c[n++] = REG_C_0;
8215         priv->sh->flow_mreg_c[n++] = REG_C_1;
8216         /* Discover availability of other reg_c's. */
8217         for (idx = REG_C_2; idx <= REG_C_7; ++idx) {
8218                 struct rte_flow_attr attr = {
8219                         .group = MLX5_FLOW_MREG_CP_TABLE_GROUP,
8220                         .priority = MLX5_FLOW_LOWEST_PRIO_INDICATOR,
8221                         .ingress = 1,
8222                 };
8223                 struct rte_flow_item items[] = {
8224                         [0] = {
8225                                 .type = RTE_FLOW_ITEM_TYPE_END,
8226                         },
8227                 };
8228                 struct rte_flow_action actions[] = {
8229                         [0] = {
8230                                 .type = (enum rte_flow_action_type)
8231                                         MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
8232                                 .conf = &(struct mlx5_flow_action_copy_mreg){
8233                                         .src = REG_C_1,
8234                                         .dst = idx,
8235                                 },
8236                         },
8237                         [1] = {
8238                                 .type = RTE_FLOW_ACTION_TYPE_JUMP,
8239                                 .conf = &(struct rte_flow_action_jump){
8240                                         .group = MLX5_FLOW_MREG_ACT_TABLE_GROUP,
8241                                 },
8242                         },
8243                         [2] = {
8244                                 .type = RTE_FLOW_ACTION_TYPE_END,
8245                         },
8246                 };
8247                 uint32_t flow_idx;
8248                 struct rte_flow *flow;
8249                 struct rte_flow_error error;
8250
8251                 if (!priv->config.dv_flow_en)
8252                         break;
8253                 /* Create internal flow, validation skips copy action. */
8254                 flow_idx = flow_list_create(dev, MLX5_FLOW_TYPE_GEN, &attr,
8255                                         items, actions, false, &error);
8256                 flow = mlx5_ipool_get(priv->flows[MLX5_FLOW_TYPE_GEN],
8257                                       flow_idx);
8258                 if (!flow)
8259                         continue;
8260                 priv->sh->flow_mreg_c[n++] = idx;
8261                 flow_list_destroy(dev, MLX5_FLOW_TYPE_GEN, flow_idx);
8262         }
8263         for (; n < MLX5_MREG_C_NUM; ++n)
8264                 priv->sh->flow_mreg_c[n] = REG_NON;
8265         priv->sh->metadata_regc_check_flag = 1;
8266         return 0;
8267 }
8268
8269 int
8270 save_dump_file(const uint8_t *data, uint32_t size,
8271         uint32_t type, uint64_t id, void *arg, FILE *file)
8272 {
8273         char line[BUF_SIZE];
8274         uint32_t out = 0;
8275         uint32_t k;
8276         uint32_t actions_num;
8277         struct rte_flow_query_count *count;
8278
8279         memset(line, 0, BUF_SIZE);
8280         switch (type) {
8281         case DR_DUMP_REC_TYPE_PMD_MODIFY_HDR:
8282                 actions_num = *(uint32_t *)(arg);
8283                 out += snprintf(line + out, BUF_SIZE - out, "%d,0x%" PRIx64 ",%d,",
8284                                 type, id, actions_num);
8285                 break;
8286         case DR_DUMP_REC_TYPE_PMD_PKT_REFORMAT:
8287                 out += snprintf(line + out, BUF_SIZE - out, "%d,0x%" PRIx64 ",",
8288                                 type, id);
8289                 break;
8290         case DR_DUMP_REC_TYPE_PMD_COUNTER:
8291                 count = (struct rte_flow_query_count *)arg;
8292                 fprintf(file,
8293                         "%d,0x%" PRIx64 ",%" PRIu64 ",%" PRIu64 "\n",
8294                         type, id, count->hits, count->bytes);
8295                 return 0;
8296         default:
8297                 return -1;
8298         }
8299
8300         for (k = 0; k < size; k++) {
8301                 /* Make sure we do not overrun the line buffer length. */
8302                 if (out >= BUF_SIZE - 4) {
8303                         line[out] = '\0';
8304                         break;
8305                 }
8306                 out += snprintf(line + out, BUF_SIZE - out, "%02x",
8307                                 (data[k]) & 0xff);
8308         }
8309         fprintf(file, "%s\n", line);
8310         return 0;
8311 }
8312
8313 int
8314 mlx5_flow_query_counter(struct rte_eth_dev *dev, struct rte_flow *flow,
8315         struct rte_flow_query_count *count, struct rte_flow_error *error)
8316 {
8317         struct rte_flow_action action[2];
8318         enum mlx5_flow_drv_type ftype;
8319         const struct mlx5_flow_driver_ops *fops;
8320
8321         if (!flow) {
8322                 return rte_flow_error_set(error, ENOENT,
8323                                 RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
8324                                 NULL,
8325                                 "invalid flow handle");
8326         }
8327         action[0].type = RTE_FLOW_ACTION_TYPE_COUNT;
8328         action[1].type = RTE_FLOW_ACTION_TYPE_END;
8329         if (flow->counter) {
8330                 memset(count, 0, sizeof(struct rte_flow_query_count));
8331                 ftype = (enum mlx5_flow_drv_type)(flow->drv_type);
8332                 MLX5_ASSERT(ftype > MLX5_FLOW_TYPE_MIN &&
8333                                                 ftype < MLX5_FLOW_TYPE_MAX);
8334                 fops = flow_get_drv_ops(ftype);
8335                 return fops->query(dev, flow, action, count, error);
8336         }
8337         return -1;
8338 }
8339
8340 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
8341 /**
8342  * Dump flow ipool data to file
8343  *
8344  * @param[in] dev
8345  *   The pointer to Ethernet device.
8346  * @param[in] file
8347  *   A pointer to a file for output.
8348  * @param[out] error
8349  *   Perform verbose error reporting if not NULL. PMDs initialize this
8350  *   structure in case of error only.
8351  * @return
8352  *   0 on success, a negative value otherwise.
8353  */
8354 int
8355 mlx5_flow_dev_dump_ipool(struct rte_eth_dev *dev,
8356         struct rte_flow *flow, FILE *file,
8357         struct rte_flow_error *error)
8358 {
8359         struct mlx5_priv *priv = dev->data->dev_private;
8360         struct mlx5_flow_dv_modify_hdr_resource  *modify_hdr;
8361         struct mlx5_flow_dv_encap_decap_resource *encap_decap;
8362         uint32_t handle_idx;
8363         struct mlx5_flow_handle *dh;
8364         struct rte_flow_query_count count;
8365         uint32_t actions_num;
8366         const uint8_t *data;
8367         size_t size;
8368         uint64_t id;
8369         uint32_t type;
8370         void *action = NULL;
8371
8372         if (!flow) {
8373                 return rte_flow_error_set(error, ENOENT,
8374                                 RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
8375                                 NULL,
8376                                 "invalid flow handle");
8377         }
8378         handle_idx = flow->dev_handles;
8379         while (handle_idx) {
8380                 dh = mlx5_ipool_get(priv->sh->ipool
8381                                 [MLX5_IPOOL_MLX5_FLOW], handle_idx);
8382                 if (!dh)
8383                         continue;
8384                 handle_idx = dh->next.next;
8385
8386                 /* query counter */
8387                 type = DR_DUMP_REC_TYPE_PMD_COUNTER;
8388                 flow_dv_query_count_ptr(dev, flow->counter,
8389                                                 &action, error);
8390                 if (action) {
8391                         id = (uint64_t)(uintptr_t)action;
8392                         if (!mlx5_flow_query_counter(dev, flow, &count, error))
8393                                 save_dump_file(NULL, 0, type,
8394                                                 id, (void *)&count, file);
8395                 }
8396                 /* Get modify_hdr and encap_decap buf from ipools. */
8397                 encap_decap = NULL;
8398                 modify_hdr = dh->dvh.modify_hdr;
8399
8400                 if (dh->dvh.rix_encap_decap) {
8401                         encap_decap = mlx5_ipool_get(priv->sh->ipool
8402                                                 [MLX5_IPOOL_DECAP_ENCAP],
8403                                                 dh->dvh.rix_encap_decap);
8404                 }
8405                 if (modify_hdr) {
8406                         data = (const uint8_t *)modify_hdr->actions;
8407                         size = (size_t)(modify_hdr->actions_num) * 8;
8408                         id = (uint64_t)(uintptr_t)modify_hdr->action;
8409                         actions_num = modify_hdr->actions_num;
8410                         type = DR_DUMP_REC_TYPE_PMD_MODIFY_HDR;
8411                         save_dump_file(data, size, type, id,
8412                                                 (void *)(&actions_num), file);
8413                 }
8414                 if (encap_decap) {
8415                         data = encap_decap->buf;
8416                         size = encap_decap->size;
8417                         id = (uint64_t)(uintptr_t)encap_decap->action;
8418                         type = DR_DUMP_REC_TYPE_PMD_PKT_REFORMAT;
8419                         save_dump_file(data, size, type,
8420                                                 id, NULL, file);
8421                 }
8422         }
8423         return 0;
8424 }
8425
8426 /**
8427  * Dump all flow's encap_decap/modify_hdr/counter data to file
8428  *
8429  * @param[in] dev
8430  *   The pointer to Ethernet device.
8431  * @param[in] file
8432  *   A pointer to a file for output.
8433  * @param[out] error
8434  *   Perform verbose error reporting if not NULL. PMDs initialize this
8435  *   structure in case of error only.
8436  * @return
8437  *   0 on success, a negative value otherwise.
8438  */
8439 static int
8440 mlx5_flow_dev_dump_sh_all(struct rte_eth_dev *dev,
8441         FILE *file, struct rte_flow_error *error)
8442 {
8443         struct mlx5_priv *priv = dev->data->dev_private;
8444         struct mlx5_dev_ctx_shared *sh = priv->sh;
8445         struct mlx5_hlist *h;
8446         struct mlx5_flow_dv_modify_hdr_resource  *modify_hdr;
8447         struct mlx5_flow_dv_encap_decap_resource *encap_decap;
8448         struct rte_flow_query_count count;
8449         uint32_t actions_num;
8450         const uint8_t *data;
8451         size_t size;
8452         uint64_t id;
8453         uint32_t type;
8454         uint32_t i;
8455         uint32_t j;
8456         struct mlx5_list_inconst *l_inconst;
8457         struct mlx5_list_entry *e;
8458         int lcore_index;
8459         struct mlx5_flow_counter_mng *cmng = &priv->sh->cmng;
8460         uint32_t max;
8461         void *action;
8462
8463         /* encap_decap hlist is lcore_share, get global core cache. */
8464         i = MLX5_LIST_GLOBAL;
8465         h = sh->encaps_decaps;
8466         if (h) {
8467                 for (j = 0; j <= h->mask; j++) {
8468                         l_inconst = &h->buckets[j].l;
8469                         if (!l_inconst || !l_inconst->cache[i])
8470                                 continue;
8471
8472                         e = LIST_FIRST(&l_inconst->cache[i]->h);
8473                         while (e) {
8474                                 encap_decap =
8475                                 (struct mlx5_flow_dv_encap_decap_resource *)e;
8476                                 data = encap_decap->buf;
8477                                 size = encap_decap->size;
8478                                 id = (uint64_t)(uintptr_t)encap_decap->action;
8479                                 type = DR_DUMP_REC_TYPE_PMD_PKT_REFORMAT;
8480                                 save_dump_file(data, size, type,
8481                                         id, NULL, file);
8482                                 e = LIST_NEXT(e, next);
8483                         }
8484                 }
8485         }
8486
8487         /* get modify_hdr */
8488         h = sh->modify_cmds;
8489         if (h) {
8490                 lcore_index = rte_lcore_index(rte_lcore_id());
8491                 if (unlikely(lcore_index == -1)) {
8492                         lcore_index = MLX5_LIST_NLCORE;
8493                         rte_spinlock_lock(&h->l_const.lcore_lock);
8494                 }
8495                 i = lcore_index;
8496
8497                 for (j = 0; j <= h->mask; j++) {
8498                         l_inconst = &h->buckets[j].l;
8499                         if (!l_inconst || !l_inconst->cache[i])
8500                                 continue;
8501
8502                         e = LIST_FIRST(&l_inconst->cache[i]->h);
8503                         while (e) {
8504                                 modify_hdr =
8505                                 (struct mlx5_flow_dv_modify_hdr_resource *)e;
8506                                 data = (const uint8_t *)modify_hdr->actions;
8507                                 size = (size_t)(modify_hdr->actions_num) * 8;
8508                                 actions_num = modify_hdr->actions_num;
8509                                 id = (uint64_t)(uintptr_t)modify_hdr->action;
8510                                 type = DR_DUMP_REC_TYPE_PMD_MODIFY_HDR;
8511                                 save_dump_file(data, size, type, id,
8512                                                 (void *)(&actions_num), file);
8513                                 e = LIST_NEXT(e, next);
8514                         }
8515                 }
8516
8517                 if (unlikely(lcore_index == MLX5_LIST_NLCORE))
8518                         rte_spinlock_unlock(&h->l_const.lcore_lock);
8519         }
8520
8521         /* get counter */
8522         MLX5_ASSERT(cmng->n_valid <= cmng->n);
8523         max = MLX5_COUNTERS_PER_POOL * cmng->n_valid;
8524         for (j = 1; j <= max; j++) {
8525                 action = NULL;
8526                 flow_dv_query_count_ptr(dev, j, &action, error);
8527                 if (action) {
8528                         if (!flow_dv_query_count(dev, j, &count, error)) {
8529                                 type = DR_DUMP_REC_TYPE_PMD_COUNTER;
8530                                 id = (uint64_t)(uintptr_t)action;
8531                                 save_dump_file(NULL, 0, type,
8532                                                 id, (void *)&count, file);
8533                         }
8534                 }
8535         }
8536         return 0;
8537 }
8538 #endif
8539
8540 /**
8541  * Dump flow raw hw data to file
8542  *
8543  * @param[in] dev
8544  *    The pointer to Ethernet device.
8545  * @param[in] file
8546  *   A pointer to a file for output.
8547  * @param[out] error
8548  *   Perform verbose error reporting if not NULL. PMDs initialize this
8549  *   structure in case of error only.
8550  * @return
8551  *   0 on success, a negative value otherwise.
8552  */
8553 int
8554 mlx5_flow_dev_dump(struct rte_eth_dev *dev, struct rte_flow *flow_idx,
8555                    FILE *file,
8556                    struct rte_flow_error *error __rte_unused)
8557 {
8558         struct mlx5_priv *priv = dev->data->dev_private;
8559         struct mlx5_dev_ctx_shared *sh = priv->sh;
8560         uint32_t handle_idx;
8561         int ret;
8562         struct mlx5_flow_handle *dh;
8563         struct rte_flow *flow;
8564
8565         if (!priv->config.dv_flow_en) {
8566                 if (fputs("device dv flow disabled\n", file) <= 0)
8567                         return -errno;
8568                 return -ENOTSUP;
8569         }
8570
8571         /* dump all */
8572         if (!flow_idx) {
8573 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
8574                 if (mlx5_flow_dev_dump_sh_all(dev, file, error))
8575                         return -EINVAL;
8576 #endif
8577                 return mlx5_devx_cmd_flow_dump(sh->fdb_domain,
8578                                         sh->rx_domain,
8579                                         sh->tx_domain, file);
8580         }
8581         /* dump one */
8582         flow = mlx5_ipool_get(priv->flows[MLX5_FLOW_TYPE_GEN],
8583                         (uintptr_t)(void *)flow_idx);
8584         if (!flow)
8585                 return -EINVAL;
8586
8587 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
8588         mlx5_flow_dev_dump_ipool(dev, flow, file, error);
8589 #endif
8590         handle_idx = flow->dev_handles;
8591         while (handle_idx) {
8592                 dh = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_MLX5_FLOW],
8593                                 handle_idx);
8594                 if (!dh)
8595                         return -ENOENT;
8596                 if (dh->drv_flow) {
8597                         ret = mlx5_devx_cmd_flow_single_dump(dh->drv_flow,
8598                                         file);
8599                         if (ret)
8600                                 return -ENOENT;
8601                 }
8602                 handle_idx = dh->next.next;
8603         }
8604         return 0;
8605 }
8606
8607 /**
8608  * Get aged-out flows.
8609  *
8610  * @param[in] dev
8611  *   Pointer to the Ethernet device structure.
8612  * @param[in] context
8613  *   The address of an array of pointers to the aged-out flows contexts.
8614  * @param[in] nb_countexts
8615  *   The length of context array pointers.
8616  * @param[out] error
8617  *   Perform verbose error reporting if not NULL. Initialized in case of
8618  *   error only.
8619  *
8620  * @return
8621  *   how many contexts get in success, otherwise negative errno value.
8622  *   if nb_contexts is 0, return the amount of all aged contexts.
8623  *   if nb_contexts is not 0 , return the amount of aged flows reported
8624  *   in the context array.
8625  */
8626 int
8627 mlx5_flow_get_aged_flows(struct rte_eth_dev *dev, void **contexts,
8628                         uint32_t nb_contexts, struct rte_flow_error *error)
8629 {
8630         const struct mlx5_flow_driver_ops *fops;
8631         struct rte_flow_attr attr = { .transfer = 0 };
8632
8633         if (flow_get_drv_type(dev, &attr) == MLX5_FLOW_TYPE_DV) {
8634                 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
8635                 return fops->get_aged_flows(dev, contexts, nb_contexts,
8636                                                     error);
8637         }
8638         DRV_LOG(ERR,
8639                 "port %u get aged flows is not supported.",
8640                  dev->data->port_id);
8641         return -ENOTSUP;
8642 }
8643
8644 /* Wrapper for driver action_validate op callback */
8645 static int
8646 flow_drv_action_validate(struct rte_eth_dev *dev,
8647                          const struct rte_flow_indir_action_conf *conf,
8648                          const struct rte_flow_action *action,
8649                          const struct mlx5_flow_driver_ops *fops,
8650                          struct rte_flow_error *error)
8651 {
8652         static const char err_msg[] = "indirect action validation unsupported";
8653
8654         if (!fops->action_validate) {
8655                 DRV_LOG(ERR, "port %u %s.", dev->data->port_id, err_msg);
8656                 rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION,
8657                                    NULL, err_msg);
8658                 return -rte_errno;
8659         }
8660         return fops->action_validate(dev, conf, action, error);
8661 }
8662
8663 /**
8664  * Destroys the shared action by handle.
8665  *
8666  * @param dev
8667  *   Pointer to Ethernet device structure.
8668  * @param[in] handle
8669  *   Handle for the indirect action object to be destroyed.
8670  * @param[out] error
8671  *   Perform verbose error reporting if not NULL. PMDs initialize this
8672  *   structure in case of error only.
8673  *
8674  * @return
8675  *   0 on success, a negative errno value otherwise and rte_errno is set.
8676  *
8677  * @note: wrapper for driver action_create op callback.
8678  */
8679 static int
8680 mlx5_action_handle_destroy(struct rte_eth_dev *dev,
8681                            struct rte_flow_action_handle *handle,
8682                            struct rte_flow_error *error)
8683 {
8684         static const char err_msg[] = "indirect action destruction unsupported";
8685         struct rte_flow_attr attr = { .transfer = 0 };
8686         const struct mlx5_flow_driver_ops *fops =
8687                         flow_get_drv_ops(flow_get_drv_type(dev, &attr));
8688
8689         if (!fops->action_destroy) {
8690                 DRV_LOG(ERR, "port %u %s.", dev->data->port_id, err_msg);
8691                 rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION,
8692                                    NULL, err_msg);
8693                 return -rte_errno;
8694         }
8695         return fops->action_destroy(dev, handle, error);
8696 }
8697
8698 /* Wrapper for driver action_destroy op callback */
8699 static int
8700 flow_drv_action_update(struct rte_eth_dev *dev,
8701                        struct rte_flow_action_handle *handle,
8702                        const void *update,
8703                        const struct mlx5_flow_driver_ops *fops,
8704                        struct rte_flow_error *error)
8705 {
8706         static const char err_msg[] = "indirect action update unsupported";
8707
8708         if (!fops->action_update) {
8709                 DRV_LOG(ERR, "port %u %s.", dev->data->port_id, err_msg);
8710                 rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION,
8711                                    NULL, err_msg);
8712                 return -rte_errno;
8713         }
8714         return fops->action_update(dev, handle, update, error);
8715 }
8716
8717 /* Wrapper for driver action_destroy op callback */
8718 static int
8719 flow_drv_action_query(struct rte_eth_dev *dev,
8720                       const struct rte_flow_action_handle *handle,
8721                       void *data,
8722                       const struct mlx5_flow_driver_ops *fops,
8723                       struct rte_flow_error *error)
8724 {
8725         static const char err_msg[] = "indirect action query unsupported";
8726
8727         if (!fops->action_query) {
8728                 DRV_LOG(ERR, "port %u %s.", dev->data->port_id, err_msg);
8729                 rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION,
8730                                    NULL, err_msg);
8731                 return -rte_errno;
8732         }
8733         return fops->action_query(dev, handle, data, error);
8734 }
8735
8736 /**
8737  * Create indirect action for reuse in multiple flow rules.
8738  *
8739  * @param dev
8740  *   Pointer to Ethernet device structure.
8741  * @param conf
8742  *   Pointer to indirect action object configuration.
8743  * @param[in] action
8744  *   Action configuration for indirect action object creation.
8745  * @param[out] error
8746  *   Perform verbose error reporting if not NULL. PMDs initialize this
8747  *   structure in case of error only.
8748  * @return
8749  *   A valid handle in case of success, NULL otherwise and rte_errno is set.
8750  */
8751 static struct rte_flow_action_handle *
8752 mlx5_action_handle_create(struct rte_eth_dev *dev,
8753                           const struct rte_flow_indir_action_conf *conf,
8754                           const struct rte_flow_action *action,
8755                           struct rte_flow_error *error)
8756 {
8757         static const char err_msg[] = "indirect action creation unsupported";
8758         struct rte_flow_attr attr = { .transfer = 0 };
8759         const struct mlx5_flow_driver_ops *fops =
8760                         flow_get_drv_ops(flow_get_drv_type(dev, &attr));
8761
8762         if (flow_drv_action_validate(dev, conf, action, fops, error))
8763                 return NULL;
8764         if (!fops->action_create) {
8765                 DRV_LOG(ERR, "port %u %s.", dev->data->port_id, err_msg);
8766                 rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION,
8767                                    NULL, err_msg);
8768                 return NULL;
8769         }
8770         return fops->action_create(dev, conf, action, error);
8771 }
8772
8773 /**
8774  * Updates inplace the indirect action configuration pointed by *handle*
8775  * with the configuration provided as *update* argument.
8776  * The update of the indirect action configuration effects all flow rules
8777  * reusing the action via handle.
8778  *
8779  * @param dev
8780  *   Pointer to Ethernet device structure.
8781  * @param[in] handle
8782  *   Handle for the indirect action to be updated.
8783  * @param[in] update
8784  *   Action specification used to modify the action pointed by handle.
8785  *   *update* could be of same type with the action pointed by the *handle*
8786  *   handle argument, or some other structures like a wrapper, depending on
8787  *   the indirect action type.
8788  * @param[out] error
8789  *   Perform verbose error reporting if not NULL. PMDs initialize this
8790  *   structure in case of error only.
8791  *
8792  * @return
8793  *   0 on success, a negative errno value otherwise and rte_errno is set.
8794  */
8795 static int
8796 mlx5_action_handle_update(struct rte_eth_dev *dev,
8797                 struct rte_flow_action_handle *handle,
8798                 const void *update,
8799                 struct rte_flow_error *error)
8800 {
8801         struct rte_flow_attr attr = { .transfer = 0 };
8802         const struct mlx5_flow_driver_ops *fops =
8803                         flow_get_drv_ops(flow_get_drv_type(dev, &attr));
8804         int ret;
8805
8806         ret = flow_drv_action_validate(dev, NULL,
8807                         (const struct rte_flow_action *)update, fops, error);
8808         if (ret)
8809                 return ret;
8810         return flow_drv_action_update(dev, handle, update, fops,
8811                                       error);
8812 }
8813
8814 /**
8815  * Query the indirect action by handle.
8816  *
8817  * This function allows retrieving action-specific data such as counters.
8818  * Data is gathered by special action which may be present/referenced in
8819  * more than one flow rule definition.
8820  *
8821  * see @RTE_FLOW_ACTION_TYPE_COUNT
8822  *
8823  * @param dev
8824  *   Pointer to Ethernet device structure.
8825  * @param[in] handle
8826  *   Handle for the indirect action to query.
8827  * @param[in, out] data
8828  *   Pointer to storage for the associated query data type.
8829  * @param[out] error
8830  *   Perform verbose error reporting if not NULL. PMDs initialize this
8831  *   structure in case of error only.
8832  *
8833  * @return
8834  *   0 on success, a negative errno value otherwise and rte_errno is set.
8835  */
8836 static int
8837 mlx5_action_handle_query(struct rte_eth_dev *dev,
8838                          const struct rte_flow_action_handle *handle,
8839                          void *data,
8840                          struct rte_flow_error *error)
8841 {
8842         struct rte_flow_attr attr = { .transfer = 0 };
8843         const struct mlx5_flow_driver_ops *fops =
8844                         flow_get_drv_ops(flow_get_drv_type(dev, &attr));
8845
8846         return flow_drv_action_query(dev, handle, data, fops, error);
8847 }
8848
8849 /**
8850  * Destroy all indirect actions (shared RSS).
8851  *
8852  * @param dev
8853  *   Pointer to Ethernet device.
8854  *
8855  * @return
8856  *   0 on success, a negative errno value otherwise and rte_errno is set.
8857  */
8858 int
8859 mlx5_action_handle_flush(struct rte_eth_dev *dev)
8860 {
8861         struct rte_flow_error error;
8862         struct mlx5_priv *priv = dev->data->dev_private;
8863         struct mlx5_shared_action_rss *shared_rss;
8864         int ret = 0;
8865         uint32_t idx;
8866
8867         ILIST_FOREACH(priv->sh->ipool[MLX5_IPOOL_RSS_SHARED_ACTIONS],
8868                       priv->rss_shared_actions, idx, shared_rss, next) {
8869                 ret |= mlx5_action_handle_destroy(dev,
8870                        (struct rte_flow_action_handle *)(uintptr_t)idx, &error);
8871         }
8872         return ret;
8873 }
8874
8875 /**
8876  * Validate existing indirect actions against current device configuration
8877  * and attach them to device resources.
8878  *
8879  * @param dev
8880  *   Pointer to Ethernet device.
8881  *
8882  * @return
8883  *   0 on success, a negative errno value otherwise and rte_errno is set.
8884  */
8885 int
8886 mlx5_action_handle_attach(struct rte_eth_dev *dev)
8887 {
8888         struct mlx5_priv *priv = dev->data->dev_private;
8889         struct mlx5_indexed_pool *ipool =
8890                         priv->sh->ipool[MLX5_IPOOL_RSS_SHARED_ACTIONS];
8891         struct mlx5_shared_action_rss *shared_rss, *shared_rss_last;
8892         int ret = 0;
8893         uint32_t idx;
8894
8895         ILIST_FOREACH(ipool, priv->rss_shared_actions, idx, shared_rss, next) {
8896                 struct mlx5_ind_table_obj *ind_tbl = shared_rss->ind_tbl;
8897                 const char *message;
8898                 uint32_t queue_idx;
8899
8900                 ret = mlx5_validate_rss_queues(dev, ind_tbl->queues,
8901                                                ind_tbl->queues_n,
8902                                                &message, &queue_idx);
8903                 if (ret != 0) {
8904                         DRV_LOG(ERR, "Port %u cannot use queue %u in RSS: %s",
8905                                 dev->data->port_id, ind_tbl->queues[queue_idx],
8906                                 message);
8907                         break;
8908                 }
8909         }
8910         if (ret != 0)
8911                 return ret;
8912         ILIST_FOREACH(ipool, priv->rss_shared_actions, idx, shared_rss, next) {
8913                 struct mlx5_ind_table_obj *ind_tbl = shared_rss->ind_tbl;
8914
8915                 ret = mlx5_ind_table_obj_attach(dev, ind_tbl);
8916                 if (ret != 0) {
8917                         DRV_LOG(ERR, "Port %u could not attach "
8918                                 "indirection table obj %p",
8919                                 dev->data->port_id, (void *)ind_tbl);
8920                         goto error;
8921                 }
8922         }
8923         return 0;
8924 error:
8925         shared_rss_last = shared_rss;
8926         ILIST_FOREACH(ipool, priv->rss_shared_actions, idx, shared_rss, next) {
8927                 struct mlx5_ind_table_obj *ind_tbl = shared_rss->ind_tbl;
8928
8929                 if (shared_rss == shared_rss_last)
8930                         break;
8931                 if (mlx5_ind_table_obj_detach(dev, ind_tbl) != 0)
8932                         DRV_LOG(CRIT, "Port %u could not detach "
8933                                 "indirection table obj %p on rollback",
8934                                 dev->data->port_id, (void *)ind_tbl);
8935         }
8936         return ret;
8937 }
8938
8939 /**
8940  * Detach indirect actions of the device from its resources.
8941  *
8942  * @param dev
8943  *   Pointer to Ethernet device.
8944  *
8945  * @return
8946  *   0 on success, a negative errno value otherwise and rte_errno is set.
8947  */
8948 int
8949 mlx5_action_handle_detach(struct rte_eth_dev *dev)
8950 {
8951         struct mlx5_priv *priv = dev->data->dev_private;
8952         struct mlx5_indexed_pool *ipool =
8953                         priv->sh->ipool[MLX5_IPOOL_RSS_SHARED_ACTIONS];
8954         struct mlx5_shared_action_rss *shared_rss, *shared_rss_last;
8955         int ret = 0;
8956         uint32_t idx;
8957
8958         ILIST_FOREACH(ipool, priv->rss_shared_actions, idx, shared_rss, next) {
8959                 struct mlx5_ind_table_obj *ind_tbl = shared_rss->ind_tbl;
8960
8961                 ret = mlx5_ind_table_obj_detach(dev, ind_tbl);
8962                 if (ret != 0) {
8963                         DRV_LOG(ERR, "Port %u could not detach "
8964                                 "indirection table obj %p",
8965                                 dev->data->port_id, (void *)ind_tbl);
8966                         goto error;
8967                 }
8968         }
8969         return 0;
8970 error:
8971         shared_rss_last = shared_rss;
8972         ILIST_FOREACH(ipool, priv->rss_shared_actions, idx, shared_rss, next) {
8973                 struct mlx5_ind_table_obj *ind_tbl = shared_rss->ind_tbl;
8974
8975                 if (shared_rss == shared_rss_last)
8976                         break;
8977                 if (mlx5_ind_table_obj_attach(dev, ind_tbl) != 0)
8978                         DRV_LOG(CRIT, "Port %u could not attach "
8979                                 "indirection table obj %p on rollback",
8980                                 dev->data->port_id, (void *)ind_tbl);
8981         }
8982         return ret;
8983 }
8984
8985 #ifndef HAVE_MLX5DV_DR
8986 #define MLX5_DOMAIN_SYNC_FLOW ((1 << 0) | (1 << 1))
8987 #else
8988 #define MLX5_DOMAIN_SYNC_FLOW \
8989         (MLX5DV_DR_DOMAIN_SYNC_FLAGS_SW | MLX5DV_DR_DOMAIN_SYNC_FLAGS_HW)
8990 #endif
8991
8992 int rte_pmd_mlx5_sync_flow(uint16_t port_id, uint32_t domains)
8993 {
8994         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
8995         const struct mlx5_flow_driver_ops *fops;
8996         int ret;
8997         struct rte_flow_attr attr = { .transfer = 0 };
8998
8999         fops = flow_get_drv_ops(flow_get_drv_type(dev, &attr));
9000         ret = fops->sync_domain(dev, domains, MLX5_DOMAIN_SYNC_FLOW);
9001         if (ret > 0)
9002                 ret = -ret;
9003         return ret;
9004 }
9005
9006 const struct mlx5_flow_tunnel *
9007 mlx5_get_tof(const struct rte_flow_item *item,
9008              const struct rte_flow_action *action,
9009              enum mlx5_tof_rule_type *rule_type)
9010 {
9011         for (; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
9012                 if (item->type == (typeof(item->type))
9013                                   MLX5_RTE_FLOW_ITEM_TYPE_TUNNEL) {
9014                         *rule_type = MLX5_TUNNEL_OFFLOAD_MATCH_RULE;
9015                         return flow_items_to_tunnel(item);
9016                 }
9017         }
9018         for (; action->conf != RTE_FLOW_ACTION_TYPE_END; action++) {
9019                 if (action->type == (typeof(action->type))
9020                                     MLX5_RTE_FLOW_ACTION_TYPE_TUNNEL_SET) {
9021                         *rule_type = MLX5_TUNNEL_OFFLOAD_SET_RULE;
9022                         return flow_actions_to_tunnel(action);
9023                 }
9024         }
9025         return NULL;
9026 }
9027
9028 /**
9029  * tunnel offload functionality is defined for DV environment only
9030  */
9031 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
9032 __extension__
9033 union tunnel_offload_mark {
9034         uint32_t val;
9035         struct {
9036                 uint32_t app_reserve:8;
9037                 uint32_t table_id:15;
9038                 uint32_t transfer:1;
9039                 uint32_t _unused_:8;
9040         };
9041 };
9042
9043 static bool
9044 mlx5_access_tunnel_offload_db
9045         (struct rte_eth_dev *dev,
9046          bool (*match)(struct rte_eth_dev *,
9047                        struct mlx5_flow_tunnel *, const void *),
9048          void (*hit)(struct rte_eth_dev *, struct mlx5_flow_tunnel *, void *),
9049          void (*miss)(struct rte_eth_dev *, void *),
9050          void *ctx, bool lock_op);
9051
9052 static int
9053 flow_tunnel_add_default_miss(struct rte_eth_dev *dev,
9054                              struct rte_flow *flow,
9055                              const struct rte_flow_attr *attr,
9056                              const struct rte_flow_action *app_actions,
9057                              uint32_t flow_idx,
9058                              const struct mlx5_flow_tunnel *tunnel,
9059                              struct tunnel_default_miss_ctx *ctx,
9060                              struct rte_flow_error *error)
9061 {
9062         struct mlx5_priv *priv = dev->data->dev_private;
9063         struct mlx5_flow *dev_flow;
9064         struct rte_flow_attr miss_attr = *attr;
9065         const struct rte_flow_item miss_items[2] = {
9066                 {
9067                         .type = RTE_FLOW_ITEM_TYPE_ETH,
9068                         .spec = NULL,
9069                         .last = NULL,
9070                         .mask = NULL
9071                 },
9072                 {
9073                         .type = RTE_FLOW_ITEM_TYPE_END,
9074                         .spec = NULL,
9075                         .last = NULL,
9076                         .mask = NULL
9077                 }
9078         };
9079         union tunnel_offload_mark mark_id;
9080         struct rte_flow_action_mark miss_mark;
9081         struct rte_flow_action miss_actions[3] = {
9082                 [0] = { .type = RTE_FLOW_ACTION_TYPE_MARK, .conf = &miss_mark },
9083                 [2] = { .type = RTE_FLOW_ACTION_TYPE_END,  .conf = NULL }
9084         };
9085         const struct rte_flow_action_jump *jump_data;
9086         uint32_t i, flow_table = 0; /* prevent compilation warning */
9087         struct flow_grp_info grp_info = {
9088                 .external = 1,
9089                 .transfer = attr->transfer,
9090                 .fdb_def_rule = !!priv->fdb_def_rule,
9091                 .std_tbl_fix = 0,
9092         };
9093         int ret;
9094
9095         if (!attr->transfer) {
9096                 uint32_t q_size;
9097
9098                 miss_actions[1].type = RTE_FLOW_ACTION_TYPE_RSS;
9099                 q_size = priv->reta_idx_n * sizeof(ctx->queue[0]);
9100                 ctx->queue = mlx5_malloc(MLX5_MEM_SYS | MLX5_MEM_ZERO, q_size,
9101                                          0, SOCKET_ID_ANY);
9102                 if (!ctx->queue)
9103                         return rte_flow_error_set
9104                                 (error, ENOMEM,
9105                                 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
9106                                 NULL, "invalid default miss RSS");
9107                 ctx->action_rss.func = RTE_ETH_HASH_FUNCTION_DEFAULT,
9108                 ctx->action_rss.level = 0,
9109                 ctx->action_rss.types = priv->rss_conf.rss_hf,
9110                 ctx->action_rss.key_len = priv->rss_conf.rss_key_len,
9111                 ctx->action_rss.queue_num = priv->reta_idx_n,
9112                 ctx->action_rss.key = priv->rss_conf.rss_key,
9113                 ctx->action_rss.queue = ctx->queue;
9114                 if (!priv->reta_idx_n || !priv->rxqs_n)
9115                         return rte_flow_error_set
9116                                 (error, EINVAL,
9117                                 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
9118                                 NULL, "invalid port configuration");
9119                 if (!(dev->data->dev_conf.rxmode.mq_mode & RTE_ETH_MQ_RX_RSS_FLAG))
9120                         ctx->action_rss.types = 0;
9121                 for (i = 0; i != priv->reta_idx_n; ++i)
9122                         ctx->queue[i] = (*priv->reta_idx)[i];
9123         } else {
9124                 miss_actions[1].type = RTE_FLOW_ACTION_TYPE_JUMP;
9125                 ctx->miss_jump.group = MLX5_TNL_MISS_FDB_JUMP_GRP;
9126         }
9127         miss_actions[1].conf = (typeof(miss_actions[1].conf))ctx->raw;
9128         for (; app_actions->type != RTE_FLOW_ACTION_TYPE_JUMP; app_actions++);
9129         jump_data = app_actions->conf;
9130         miss_attr.priority = MLX5_TNL_MISS_RULE_PRIORITY;
9131         miss_attr.group = jump_data->group;
9132         ret = mlx5_flow_group_to_table(dev, tunnel, jump_data->group,
9133                                        &flow_table, &grp_info, error);
9134         if (ret)
9135                 return rte_flow_error_set(error, EINVAL,
9136                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
9137                                           NULL, "invalid tunnel id");
9138         mark_id.app_reserve = 0;
9139         mark_id.table_id = tunnel_flow_tbl_to_id(flow_table);
9140         mark_id.transfer = !!attr->transfer;
9141         mark_id._unused_ = 0;
9142         miss_mark.id = mark_id.val;
9143         dev_flow = flow_drv_prepare(dev, flow, &miss_attr,
9144                                     miss_items, miss_actions, flow_idx, error);
9145         if (!dev_flow)
9146                 return -rte_errno;
9147         dev_flow->flow = flow;
9148         dev_flow->external = true;
9149         dev_flow->tunnel = tunnel;
9150         dev_flow->tof_type = MLX5_TUNNEL_OFFLOAD_MISS_RULE;
9151         /* Subflow object was created, we must include one in the list. */
9152         SILIST_INSERT(&flow->dev_handles, dev_flow->handle_idx,
9153                       dev_flow->handle, next);
9154         DRV_LOG(DEBUG,
9155                 "port %u tunnel type=%d id=%u miss rule priority=%u group=%u",
9156                 dev->data->port_id, tunnel->app_tunnel.type,
9157                 tunnel->tunnel_id, miss_attr.priority, miss_attr.group);
9158         ret = flow_drv_translate(dev, dev_flow, &miss_attr, miss_items,
9159                                   miss_actions, error);
9160         if (!ret)
9161                 ret = flow_mreg_update_copy_table(dev, flow, miss_actions,
9162                                                   error);
9163
9164         return ret;
9165 }
9166
9167 static const struct mlx5_flow_tbl_data_entry  *
9168 tunnel_mark_decode(struct rte_eth_dev *dev, uint32_t mark)
9169 {
9170         struct mlx5_priv *priv = dev->data->dev_private;
9171         struct mlx5_dev_ctx_shared *sh = priv->sh;
9172         struct mlx5_list_entry *he;
9173         union tunnel_offload_mark mbits = { .val = mark };
9174         union mlx5_flow_tbl_key table_key = {
9175                 {
9176                         .level = tunnel_id_to_flow_tbl(mbits.table_id),
9177                         .id = 0,
9178                         .reserved = 0,
9179                         .dummy = 0,
9180                         .is_fdb = !!mbits.transfer,
9181                         .is_egress = 0,
9182                 }
9183         };
9184         struct mlx5_flow_cb_ctx ctx = {
9185                 .data = &table_key.v64,
9186         };
9187
9188         he = mlx5_hlist_lookup(sh->flow_tbls, table_key.v64, &ctx);
9189         return he ?
9190                container_of(he, struct mlx5_flow_tbl_data_entry, entry) : NULL;
9191 }
9192
9193 static void
9194 mlx5_flow_tunnel_grp2tbl_remove_cb(void *tool_ctx,
9195                                    struct mlx5_list_entry *entry)
9196 {
9197         struct mlx5_dev_ctx_shared *sh = tool_ctx;
9198         struct tunnel_tbl_entry *tte = container_of(entry, typeof(*tte), hash);
9199
9200         mlx5_ipool_free(sh->ipool[MLX5_IPOOL_TNL_TBL_ID],
9201                         tunnel_flow_tbl_to_id(tte->flow_table));
9202         mlx5_free(tte);
9203 }
9204
9205 static int
9206 mlx5_flow_tunnel_grp2tbl_match_cb(void *tool_ctx __rte_unused,
9207                                   struct mlx5_list_entry *entry, void *cb_ctx)
9208 {
9209         struct mlx5_flow_cb_ctx *ctx = cb_ctx;
9210         union tunnel_tbl_key tbl = {
9211                 .val = *(uint64_t *)(ctx->data),
9212         };
9213         struct tunnel_tbl_entry *tte = container_of(entry, typeof(*tte), hash);
9214
9215         return tbl.tunnel_id != tte->tunnel_id || tbl.group != tte->group;
9216 }
9217
9218 static struct mlx5_list_entry *
9219 mlx5_flow_tunnel_grp2tbl_create_cb(void *tool_ctx, void *cb_ctx)
9220 {
9221         struct mlx5_dev_ctx_shared *sh = tool_ctx;
9222         struct mlx5_flow_cb_ctx *ctx = cb_ctx;
9223         struct tunnel_tbl_entry *tte;
9224         union tunnel_tbl_key tbl = {
9225                 .val = *(uint64_t *)(ctx->data),
9226         };
9227
9228         tte = mlx5_malloc(MLX5_MEM_SYS | MLX5_MEM_ZERO,
9229                           sizeof(*tte), 0,
9230                           SOCKET_ID_ANY);
9231         if (!tte)
9232                 goto err;
9233         mlx5_ipool_malloc(sh->ipool[MLX5_IPOOL_TNL_TBL_ID],
9234                           &tte->flow_table);
9235         if (tte->flow_table >= MLX5_MAX_TABLES) {
9236                 DRV_LOG(ERR, "Tunnel TBL ID %d exceed max limit.",
9237                         tte->flow_table);
9238                 mlx5_ipool_free(sh->ipool[MLX5_IPOOL_TNL_TBL_ID],
9239                                 tte->flow_table);
9240                 goto err;
9241         } else if (!tte->flow_table) {
9242                 goto err;
9243         }
9244         tte->flow_table = tunnel_id_to_flow_tbl(tte->flow_table);
9245         tte->tunnel_id = tbl.tunnel_id;
9246         tte->group = tbl.group;
9247         return &tte->hash;
9248 err:
9249         if (tte)
9250                 mlx5_free(tte);
9251         return NULL;
9252 }
9253
9254 static struct mlx5_list_entry *
9255 mlx5_flow_tunnel_grp2tbl_clone_cb(void *tool_ctx __rte_unused,
9256                                   struct mlx5_list_entry *oentry,
9257                                   void *cb_ctx __rte_unused)
9258 {
9259         struct tunnel_tbl_entry *tte = mlx5_malloc(MLX5_MEM_SYS, sizeof(*tte),
9260                                                    0, SOCKET_ID_ANY);
9261
9262         if (!tte)
9263                 return NULL;
9264         memcpy(tte, oentry, sizeof(*tte));
9265         return &tte->hash;
9266 }
9267
9268 static void
9269 mlx5_flow_tunnel_grp2tbl_clone_free_cb(void *tool_ctx __rte_unused,
9270                                        struct mlx5_list_entry *entry)
9271 {
9272         struct tunnel_tbl_entry *tte = container_of(entry, typeof(*tte), hash);
9273
9274         mlx5_free(tte);
9275 }
9276
9277 static uint32_t
9278 tunnel_flow_group_to_flow_table(struct rte_eth_dev *dev,
9279                                 const struct mlx5_flow_tunnel *tunnel,
9280                                 uint32_t group, uint32_t *table,
9281                                 struct rte_flow_error *error)
9282 {
9283         struct mlx5_list_entry *he;
9284         struct tunnel_tbl_entry *tte;
9285         union tunnel_tbl_key key = {
9286                 .tunnel_id = tunnel ? tunnel->tunnel_id : 0,
9287                 .group = group
9288         };
9289         struct mlx5_flow_tunnel_hub *thub = mlx5_tunnel_hub(dev);
9290         struct mlx5_hlist *group_hash;
9291         struct mlx5_flow_cb_ctx ctx = {
9292                 .data = &key.val,
9293         };
9294
9295         group_hash = tunnel ? tunnel->groups : thub->groups;
9296         he = mlx5_hlist_register(group_hash, key.val, &ctx);
9297         if (!he)
9298                 return rte_flow_error_set(error, EINVAL,
9299                                           RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
9300                                           NULL,
9301                                           "tunnel group index not supported");
9302         tte = container_of(he, typeof(*tte), hash);
9303         *table = tte->flow_table;
9304         DRV_LOG(DEBUG, "port %u tunnel %u group=%#x table=%#x",
9305                 dev->data->port_id, key.tunnel_id, group, *table);
9306         return 0;
9307 }
9308
9309 static void
9310 mlx5_flow_tunnel_free(struct rte_eth_dev *dev,
9311                       struct mlx5_flow_tunnel *tunnel)
9312 {
9313         struct mlx5_priv *priv = dev->data->dev_private;
9314         struct mlx5_indexed_pool *ipool;
9315
9316         DRV_LOG(DEBUG, "port %u release pmd tunnel id=0x%x",
9317                 dev->data->port_id, tunnel->tunnel_id);
9318         LIST_REMOVE(tunnel, chain);
9319         mlx5_hlist_destroy(tunnel->groups);
9320         ipool = priv->sh->ipool[MLX5_IPOOL_TUNNEL_ID];
9321         mlx5_ipool_free(ipool, tunnel->tunnel_id);
9322 }
9323
9324 static bool
9325 mlx5_access_tunnel_offload_db
9326         (struct rte_eth_dev *dev,
9327          bool (*match)(struct rte_eth_dev *,
9328                        struct mlx5_flow_tunnel *, const void *),
9329          void (*hit)(struct rte_eth_dev *, struct mlx5_flow_tunnel *, void *),
9330          void (*miss)(struct rte_eth_dev *, void *),
9331          void *ctx, bool lock_op)
9332 {
9333         bool verdict = false;
9334         struct mlx5_flow_tunnel_hub *thub = mlx5_tunnel_hub(dev);
9335         struct mlx5_flow_tunnel *tunnel;
9336
9337         rte_spinlock_lock(&thub->sl);
9338         LIST_FOREACH(tunnel, &thub->tunnels, chain) {
9339                 verdict = match(dev, tunnel, (const void *)ctx);
9340                 if (verdict)
9341                         break;
9342         }
9343         if (!lock_op)
9344                 rte_spinlock_unlock(&thub->sl);
9345         if (verdict && hit)
9346                 hit(dev, tunnel, ctx);
9347         if (!verdict && miss)
9348                 miss(dev, ctx);
9349         if (lock_op)
9350                 rte_spinlock_unlock(&thub->sl);
9351
9352         return verdict;
9353 }
9354
9355 struct tunnel_db_find_tunnel_id_ctx {
9356         uint32_t tunnel_id;
9357         struct mlx5_flow_tunnel *tunnel;
9358 };
9359
9360 static bool
9361 find_tunnel_id_match(struct rte_eth_dev *dev,
9362                      struct mlx5_flow_tunnel *tunnel, const void *x)
9363 {
9364         const struct tunnel_db_find_tunnel_id_ctx *ctx = x;
9365
9366         RTE_SET_USED(dev);
9367         return tunnel->tunnel_id == ctx->tunnel_id;
9368 }
9369
9370 static void
9371 find_tunnel_id_hit(struct rte_eth_dev *dev,
9372                    struct mlx5_flow_tunnel *tunnel, void *x)
9373 {
9374         struct tunnel_db_find_tunnel_id_ctx *ctx = x;
9375         RTE_SET_USED(dev);
9376         ctx->tunnel = tunnel;
9377 }
9378
9379 static struct mlx5_flow_tunnel *
9380 mlx5_find_tunnel_id(struct rte_eth_dev *dev, uint32_t id)
9381 {
9382         struct tunnel_db_find_tunnel_id_ctx ctx = {
9383                 .tunnel_id = id,
9384         };
9385
9386         mlx5_access_tunnel_offload_db(dev, find_tunnel_id_match,
9387                                       find_tunnel_id_hit, NULL, &ctx, true);
9388
9389         return ctx.tunnel;
9390 }
9391
9392 static struct mlx5_flow_tunnel *
9393 mlx5_flow_tunnel_allocate(struct rte_eth_dev *dev,
9394                           const struct rte_flow_tunnel *app_tunnel)
9395 {
9396         struct mlx5_priv *priv = dev->data->dev_private;
9397         struct mlx5_indexed_pool *ipool;
9398         struct mlx5_flow_tunnel *tunnel;
9399         uint32_t id;
9400
9401         ipool = priv->sh->ipool[MLX5_IPOOL_TUNNEL_ID];
9402         tunnel = mlx5_ipool_zmalloc(ipool, &id);
9403         if (!tunnel)
9404                 return NULL;
9405         if (id >= MLX5_MAX_TUNNELS) {
9406                 mlx5_ipool_free(ipool, id);
9407                 DRV_LOG(ERR, "Tunnel ID %d exceed max limit.", id);
9408                 return NULL;
9409         }
9410         tunnel->groups = mlx5_hlist_create("tunnel groups", 64, false, true,
9411                                            priv->sh,
9412                                            mlx5_flow_tunnel_grp2tbl_create_cb,
9413                                            mlx5_flow_tunnel_grp2tbl_match_cb,
9414                                            mlx5_flow_tunnel_grp2tbl_remove_cb,
9415                                            mlx5_flow_tunnel_grp2tbl_clone_cb,
9416                                         mlx5_flow_tunnel_grp2tbl_clone_free_cb);
9417         if (!tunnel->groups) {
9418                 mlx5_ipool_free(ipool, id);
9419                 return NULL;
9420         }
9421         /* initiate new PMD tunnel */
9422         memcpy(&tunnel->app_tunnel, app_tunnel, sizeof(*app_tunnel));
9423         tunnel->tunnel_id = id;
9424         tunnel->action.type = (typeof(tunnel->action.type))
9425                               MLX5_RTE_FLOW_ACTION_TYPE_TUNNEL_SET;
9426         tunnel->action.conf = tunnel;
9427         tunnel->item.type = (typeof(tunnel->item.type))
9428                             MLX5_RTE_FLOW_ITEM_TYPE_TUNNEL;
9429         tunnel->item.spec = tunnel;
9430         tunnel->item.last = NULL;
9431         tunnel->item.mask = NULL;
9432
9433         DRV_LOG(DEBUG, "port %u new pmd tunnel id=0x%x",
9434                 dev->data->port_id, tunnel->tunnel_id);
9435
9436         return tunnel;
9437 }
9438
9439 struct tunnel_db_get_tunnel_ctx {
9440         const struct rte_flow_tunnel *app_tunnel;
9441         struct mlx5_flow_tunnel *tunnel;
9442 };
9443
9444 static bool get_tunnel_match(struct rte_eth_dev *dev,
9445                              struct mlx5_flow_tunnel *tunnel, const void *x)
9446 {
9447         const struct tunnel_db_get_tunnel_ctx *ctx = x;
9448
9449         RTE_SET_USED(dev);
9450         return !memcmp(ctx->app_tunnel, &tunnel->app_tunnel,
9451                        sizeof(*ctx->app_tunnel));
9452 }
9453
9454 static void get_tunnel_hit(struct rte_eth_dev *dev,
9455                            struct mlx5_flow_tunnel *tunnel, void *x)
9456 {
9457         /* called under tunnel spinlock protection */
9458         struct tunnel_db_get_tunnel_ctx *ctx = x;
9459
9460         RTE_SET_USED(dev);
9461         tunnel->refctn++;
9462         ctx->tunnel = tunnel;
9463 }
9464
9465 static void get_tunnel_miss(struct rte_eth_dev *dev, void *x)
9466 {
9467         /* called under tunnel spinlock protection */
9468         struct mlx5_flow_tunnel_hub *thub = mlx5_tunnel_hub(dev);
9469         struct tunnel_db_get_tunnel_ctx *ctx = x;
9470
9471         rte_spinlock_unlock(&thub->sl);
9472         ctx->tunnel = mlx5_flow_tunnel_allocate(dev, ctx->app_tunnel);
9473         rte_spinlock_lock(&thub->sl);
9474         if (ctx->tunnel) {
9475                 ctx->tunnel->refctn = 1;
9476                 LIST_INSERT_HEAD(&thub->tunnels, ctx->tunnel, chain);
9477         }
9478 }
9479
9480
9481 static int
9482 mlx5_get_flow_tunnel(struct rte_eth_dev *dev,
9483                      const struct rte_flow_tunnel *app_tunnel,
9484                      struct mlx5_flow_tunnel **tunnel)
9485 {
9486         struct tunnel_db_get_tunnel_ctx ctx = {
9487                 .app_tunnel = app_tunnel,
9488         };
9489
9490         mlx5_access_tunnel_offload_db(dev, get_tunnel_match, get_tunnel_hit,
9491                                       get_tunnel_miss, &ctx, true);
9492         *tunnel = ctx.tunnel;
9493         return ctx.tunnel ? 0 : -ENOMEM;
9494 }
9495
9496 void mlx5_release_tunnel_hub(struct mlx5_dev_ctx_shared *sh, uint16_t port_id)
9497 {
9498         struct mlx5_flow_tunnel_hub *thub = sh->tunnel_hub;
9499
9500         if (!thub)
9501                 return;
9502         if (!LIST_EMPTY(&thub->tunnels))
9503                 DRV_LOG(WARNING, "port %u tunnels present", port_id);
9504         mlx5_hlist_destroy(thub->groups);
9505         mlx5_free(thub);
9506 }
9507
9508 int mlx5_alloc_tunnel_hub(struct mlx5_dev_ctx_shared *sh)
9509 {
9510         int err;
9511         struct mlx5_flow_tunnel_hub *thub;
9512
9513         thub = mlx5_malloc(MLX5_MEM_SYS | MLX5_MEM_ZERO, sizeof(*thub),
9514                            0, SOCKET_ID_ANY);
9515         if (!thub)
9516                 return -ENOMEM;
9517         LIST_INIT(&thub->tunnels);
9518         rte_spinlock_init(&thub->sl);
9519         thub->groups = mlx5_hlist_create("flow groups", 64,
9520                                          false, true, sh,
9521                                          mlx5_flow_tunnel_grp2tbl_create_cb,
9522                                          mlx5_flow_tunnel_grp2tbl_match_cb,
9523                                          mlx5_flow_tunnel_grp2tbl_remove_cb,
9524                                          mlx5_flow_tunnel_grp2tbl_clone_cb,
9525                                         mlx5_flow_tunnel_grp2tbl_clone_free_cb);
9526         if (!thub->groups) {
9527                 err = -rte_errno;
9528                 goto err;
9529         }
9530         sh->tunnel_hub = thub;
9531
9532         return 0;
9533
9534 err:
9535         if (thub->groups)
9536                 mlx5_hlist_destroy(thub->groups);
9537         if (thub)
9538                 mlx5_free(thub);
9539         return err;
9540 }
9541
9542 static inline int
9543 mlx5_flow_tunnel_validate(struct rte_eth_dev *dev,
9544                           struct rte_flow_tunnel *tunnel,
9545                           struct rte_flow_error *error)
9546 {
9547         struct mlx5_priv *priv = dev->data->dev_private;
9548
9549         if (!priv->config.dv_flow_en)
9550                 return rte_flow_error_set(error, ENOTSUP,
9551                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
9552                                           "flow DV interface is off");
9553         if (!is_tunnel_offload_active(dev))
9554                 return rte_flow_error_set(error, ENOTSUP,
9555                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
9556                                           "tunnel offload was not activated");
9557         if (!tunnel)
9558                 return rte_flow_error_set(error, EINVAL,
9559                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
9560                                           "no application tunnel");
9561         switch (tunnel->type) {
9562         default:
9563                 return rte_flow_error_set(error, EINVAL,
9564                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
9565                                           "unsupported tunnel type");
9566         case RTE_FLOW_ITEM_TYPE_VXLAN:
9567         case RTE_FLOW_ITEM_TYPE_GRE:
9568         case RTE_FLOW_ITEM_TYPE_NVGRE:
9569         case RTE_FLOW_ITEM_TYPE_GENEVE:
9570                 break;
9571         }
9572         return 0;
9573 }
9574
9575 static int
9576 mlx5_flow_tunnel_decap_set(struct rte_eth_dev *dev,
9577                     struct rte_flow_tunnel *app_tunnel,
9578                     struct rte_flow_action **actions,
9579                     uint32_t *num_of_actions,
9580                     struct rte_flow_error *error)
9581 {
9582         struct mlx5_flow_tunnel *tunnel;
9583         int ret = mlx5_flow_tunnel_validate(dev, app_tunnel, error);
9584
9585         if (ret)
9586                 return ret;
9587         ret = mlx5_get_flow_tunnel(dev, app_tunnel, &tunnel);
9588         if (ret < 0) {
9589                 return rte_flow_error_set(error, ret,
9590                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
9591                                           "failed to initialize pmd tunnel");
9592         }
9593         *actions = &tunnel->action;
9594         *num_of_actions = 1;
9595         return 0;
9596 }
9597
9598 static int
9599 mlx5_flow_tunnel_match(struct rte_eth_dev *dev,
9600                        struct rte_flow_tunnel *app_tunnel,
9601                        struct rte_flow_item **items,
9602                        uint32_t *num_of_items,
9603                        struct rte_flow_error *error)
9604 {
9605         struct mlx5_flow_tunnel *tunnel;
9606         int ret = mlx5_flow_tunnel_validate(dev, app_tunnel, error);
9607
9608         if (ret)
9609                 return ret;
9610         ret = mlx5_get_flow_tunnel(dev, app_tunnel, &tunnel);
9611         if (ret < 0) {
9612                 return rte_flow_error_set(error, ret,
9613                                           RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
9614                                           "failed to initialize pmd tunnel");
9615         }
9616         *items = &tunnel->item;
9617         *num_of_items = 1;
9618         return 0;
9619 }
9620
9621 struct tunnel_db_element_release_ctx {
9622         struct rte_flow_item *items;
9623         struct rte_flow_action *actions;
9624         uint32_t num_elements;
9625         struct rte_flow_error *error;
9626         int ret;
9627 };
9628
9629 static bool
9630 tunnel_element_release_match(struct rte_eth_dev *dev,
9631                              struct mlx5_flow_tunnel *tunnel, const void *x)
9632 {
9633         const struct tunnel_db_element_release_ctx *ctx = x;
9634
9635         RTE_SET_USED(dev);
9636         if (ctx->num_elements != 1)
9637                 return false;
9638         else if (ctx->items)
9639                 return ctx->items == &tunnel->item;
9640         else if (ctx->actions)
9641                 return ctx->actions == &tunnel->action;
9642
9643         return false;
9644 }
9645
9646 static void
9647 tunnel_element_release_hit(struct rte_eth_dev *dev,
9648                            struct mlx5_flow_tunnel *tunnel, void *x)
9649 {
9650         struct tunnel_db_element_release_ctx *ctx = x;
9651         ctx->ret = 0;
9652         if (!__atomic_sub_fetch(&tunnel->refctn, 1, __ATOMIC_RELAXED))
9653                 mlx5_flow_tunnel_free(dev, tunnel);
9654 }
9655
9656 static void
9657 tunnel_element_release_miss(struct rte_eth_dev *dev, void *x)
9658 {
9659         struct tunnel_db_element_release_ctx *ctx = x;
9660         RTE_SET_USED(dev);
9661         ctx->ret = rte_flow_error_set(ctx->error, EINVAL,
9662                                       RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
9663                                       "invalid argument");
9664 }
9665
9666 static int
9667 mlx5_flow_tunnel_item_release(struct rte_eth_dev *dev,
9668                        struct rte_flow_item *pmd_items,
9669                        uint32_t num_items, struct rte_flow_error *err)
9670 {
9671         struct tunnel_db_element_release_ctx ctx = {
9672                 .items = pmd_items,
9673                 .actions = NULL,
9674                 .num_elements = num_items,
9675                 .error = err,
9676         };
9677
9678         mlx5_access_tunnel_offload_db(dev, tunnel_element_release_match,
9679                                       tunnel_element_release_hit,
9680                                       tunnel_element_release_miss, &ctx, false);
9681
9682         return ctx.ret;
9683 }
9684
9685 static int
9686 mlx5_flow_tunnel_action_release(struct rte_eth_dev *dev,
9687                          struct rte_flow_action *pmd_actions,
9688                          uint32_t num_actions, struct rte_flow_error *err)
9689 {
9690         struct tunnel_db_element_release_ctx ctx = {
9691                 .items = NULL,
9692                 .actions = pmd_actions,
9693                 .num_elements = num_actions,
9694                 .error = err,
9695         };
9696
9697         mlx5_access_tunnel_offload_db(dev, tunnel_element_release_match,
9698                                       tunnel_element_release_hit,
9699                                       tunnel_element_release_miss, &ctx, false);
9700
9701         return ctx.ret;
9702 }
9703
9704 static int
9705 mlx5_flow_tunnel_get_restore_info(struct rte_eth_dev *dev,
9706                                   struct rte_mbuf *m,
9707                                   struct rte_flow_restore_info *info,
9708                                   struct rte_flow_error *err)
9709 {
9710         uint64_t ol_flags = m->ol_flags;
9711         const struct mlx5_flow_tbl_data_entry *tble;
9712         const uint64_t mask = RTE_MBUF_F_RX_FDIR | RTE_MBUF_F_RX_FDIR_ID;
9713
9714         if (!is_tunnel_offload_active(dev)) {
9715                 info->flags = 0;
9716                 return 0;
9717         }
9718
9719         if ((ol_flags & mask) != mask)
9720                 goto err;
9721         tble = tunnel_mark_decode(dev, m->hash.fdir.hi);
9722         if (!tble) {
9723                 DRV_LOG(DEBUG, "port %u invalid miss tunnel mark %#x",
9724                         dev->data->port_id, m->hash.fdir.hi);
9725                 goto err;
9726         }
9727         MLX5_ASSERT(tble->tunnel);
9728         memcpy(&info->tunnel, &tble->tunnel->app_tunnel, sizeof(info->tunnel));
9729         info->group_id = tble->group_id;
9730         info->flags = RTE_FLOW_RESTORE_INFO_TUNNEL |
9731                       RTE_FLOW_RESTORE_INFO_GROUP_ID |
9732                       RTE_FLOW_RESTORE_INFO_ENCAPSULATED;
9733
9734         return 0;
9735
9736 err:
9737         return rte_flow_error_set(err, EINVAL,
9738                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
9739                                   "failed to get restore info");
9740 }
9741
9742 #else /* HAVE_IBV_FLOW_DV_SUPPORT */
9743 static int
9744 mlx5_flow_tunnel_decap_set(__rte_unused struct rte_eth_dev *dev,
9745                            __rte_unused struct rte_flow_tunnel *app_tunnel,
9746                            __rte_unused struct rte_flow_action **actions,
9747                            __rte_unused uint32_t *num_of_actions,
9748                            __rte_unused struct rte_flow_error *error)
9749 {
9750         return -ENOTSUP;
9751 }
9752
9753 static int
9754 mlx5_flow_tunnel_match(__rte_unused struct rte_eth_dev *dev,
9755                        __rte_unused struct rte_flow_tunnel *app_tunnel,
9756                        __rte_unused struct rte_flow_item **items,
9757                        __rte_unused uint32_t *num_of_items,
9758                        __rte_unused struct rte_flow_error *error)
9759 {
9760         return -ENOTSUP;
9761 }
9762
9763 static int
9764 mlx5_flow_tunnel_item_release(__rte_unused struct rte_eth_dev *dev,
9765                               __rte_unused struct rte_flow_item *pmd_items,
9766                               __rte_unused uint32_t num_items,
9767                               __rte_unused struct rte_flow_error *err)
9768 {
9769         return -ENOTSUP;
9770 }
9771
9772 static int
9773 mlx5_flow_tunnel_action_release(__rte_unused struct rte_eth_dev *dev,
9774                                 __rte_unused struct rte_flow_action *pmd_action,
9775                                 __rte_unused uint32_t num_actions,
9776                                 __rte_unused struct rte_flow_error *err)
9777 {
9778         return -ENOTSUP;
9779 }
9780
9781 static int
9782 mlx5_flow_tunnel_get_restore_info(__rte_unused struct rte_eth_dev *dev,
9783                                   __rte_unused struct rte_mbuf *m,
9784                                   __rte_unused struct rte_flow_restore_info *i,
9785                                   __rte_unused struct rte_flow_error *err)
9786 {
9787         return -ENOTSUP;
9788 }
9789
9790 static int
9791 flow_tunnel_add_default_miss(__rte_unused struct rte_eth_dev *dev,
9792                              __rte_unused struct rte_flow *flow,
9793                              __rte_unused const struct rte_flow_attr *attr,
9794                              __rte_unused const struct rte_flow_action *actions,
9795                              __rte_unused uint32_t flow_idx,
9796                              __rte_unused const struct mlx5_flow_tunnel *tunnel,
9797                              __rte_unused struct tunnel_default_miss_ctx *ctx,
9798                              __rte_unused struct rte_flow_error *error)
9799 {
9800         return -ENOTSUP;
9801 }
9802
9803 static struct mlx5_flow_tunnel *
9804 mlx5_find_tunnel_id(__rte_unused struct rte_eth_dev *dev,
9805                     __rte_unused uint32_t id)
9806 {
9807         return NULL;
9808 }
9809
9810 static void
9811 mlx5_flow_tunnel_free(__rte_unused struct rte_eth_dev *dev,
9812                       __rte_unused struct mlx5_flow_tunnel *tunnel)
9813 {
9814 }
9815
9816 static uint32_t
9817 tunnel_flow_group_to_flow_table(__rte_unused struct rte_eth_dev *dev,
9818                                 __rte_unused const struct mlx5_flow_tunnel *t,
9819                                 __rte_unused uint32_t group,
9820                                 __rte_unused uint32_t *table,
9821                                 struct rte_flow_error *error)
9822 {
9823         return rte_flow_error_set(error, ENOTSUP,
9824                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
9825                                   "tunnel offload requires DV support");
9826 }
9827
9828 void
9829 mlx5_release_tunnel_hub(__rte_unused struct mlx5_dev_ctx_shared *sh,
9830                         __rte_unused  uint16_t port_id)
9831 {
9832 }
9833 #endif /* HAVE_IBV_FLOW_DV_SUPPORT */
9834
9835 /* Flex flow item API */
9836 static struct rte_flow_item_flex_handle *
9837 mlx5_flow_flex_item_create(struct rte_eth_dev *dev,
9838                            const struct rte_flow_item_flex_conf *conf,
9839                            struct rte_flow_error *error)
9840 {
9841         static const char err_msg[] = "flex item creation unsupported";
9842         struct rte_flow_attr attr = { .transfer = 0 };
9843         const struct mlx5_flow_driver_ops *fops =
9844                         flow_get_drv_ops(flow_get_drv_type(dev, &attr));
9845
9846         if (!fops->item_create) {
9847                 DRV_LOG(ERR, "port %u %s.", dev->data->port_id, err_msg);
9848                 rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION,
9849                                    NULL, err_msg);
9850                 return NULL;
9851         }
9852         return fops->item_create(dev, conf, error);
9853 }
9854
9855 static int
9856 mlx5_flow_flex_item_release(struct rte_eth_dev *dev,
9857                             const struct rte_flow_item_flex_handle *handle,
9858                             struct rte_flow_error *error)
9859 {
9860         static const char err_msg[] = "flex item release unsupported";
9861         struct rte_flow_attr attr = { .transfer = 0 };
9862         const struct mlx5_flow_driver_ops *fops =
9863                         flow_get_drv_ops(flow_get_drv_type(dev, &attr));
9864
9865         if (!fops->item_release) {
9866                 DRV_LOG(ERR, "port %u %s.", dev->data->port_id, err_msg);
9867                 rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION,
9868                                    NULL, err_msg);
9869                 return -rte_errno;
9870         }
9871         return fops->item_release(dev, handle, error);
9872 }
9873
9874 static void
9875 mlx5_dbg__print_pattern(const struct rte_flow_item *item)
9876 {
9877         int ret;
9878         struct rte_flow_error error;
9879
9880         for (; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
9881                 char *item_name;
9882                 ret = rte_flow_conv(RTE_FLOW_CONV_OP_ITEM_NAME_PTR, &item_name,
9883                                     sizeof(item_name),
9884                                     (void *)(uintptr_t)item->type, &error);
9885                 if (ret > 0)
9886                         printf("%s ", item_name);
9887                 else
9888                         printf("%d\n", (int)item->type);
9889         }
9890         printf("END\n");
9891 }
9892
9893 static int
9894 mlx5_flow_is_std_vxlan_port(const struct rte_flow_item *udp_item)
9895 {
9896         const struct rte_flow_item_udp *spec = udp_item->spec;
9897         const struct rte_flow_item_udp *mask = udp_item->mask;
9898         uint16_t udp_dport = 0;
9899
9900         if (spec != NULL) {
9901                 if (!mask)
9902                         mask = &rte_flow_item_udp_mask;
9903                 udp_dport = rte_be_to_cpu_16(spec->hdr.dst_port &
9904                                 mask->hdr.dst_port);
9905         }
9906         return (!udp_dport || udp_dport == MLX5_UDP_PORT_VXLAN);
9907 }
9908
9909 static const struct mlx5_flow_expand_node *
9910 mlx5_flow_expand_rss_adjust_node(const struct rte_flow_item *pattern,
9911                 unsigned int item_idx,
9912                 const struct mlx5_flow_expand_node graph[],
9913                 const struct mlx5_flow_expand_node *node)
9914 {
9915         const struct rte_flow_item *item = pattern + item_idx, *prev_item;
9916
9917         if (item->type == RTE_FLOW_ITEM_TYPE_VXLAN &&
9918                         node != NULL &&
9919                         node->type == RTE_FLOW_ITEM_TYPE_VXLAN) {
9920                 /*
9921                  * The expansion node is VXLAN and it is also the last
9922                  * expandable item in the pattern, so need to continue
9923                  * expansion of the inner tunnel.
9924                  */
9925                 MLX5_ASSERT(item_idx > 0);
9926                 prev_item = pattern + item_idx - 1;
9927                 MLX5_ASSERT(prev_item->type == RTE_FLOW_ITEM_TYPE_UDP);
9928                 if (mlx5_flow_is_std_vxlan_port(prev_item))
9929                         return &graph[MLX5_EXPANSION_STD_VXLAN];
9930                 return &graph[MLX5_EXPANSION_L3_VXLAN];
9931         }
9932         return node;
9933 }
9934
9935 /* Map of Verbs to Flow priority with 8 Verbs priorities. */
9936 static const uint32_t priority_map_3[][MLX5_PRIORITY_MAP_MAX] = {
9937         { 0, 1, 2 }, { 2, 3, 4 }, { 5, 6, 7 },
9938 };
9939
9940 /* Map of Verbs to Flow priority with 16 Verbs priorities. */
9941 static const uint32_t priority_map_5[][MLX5_PRIORITY_MAP_MAX] = {
9942         { 0, 1, 2 }, { 3, 4, 5 }, { 6, 7, 8 },
9943         { 9, 10, 11 }, { 12, 13, 14 },
9944 };
9945
9946 /**
9947  * Discover the number of available flow priorities.
9948  *
9949  * @param dev
9950  *   Ethernet device.
9951  *
9952  * @return
9953  *   On success, number of available flow priorities.
9954  *   On failure, a negative errno-style code and rte_errno is set.
9955  */
9956 int
9957 mlx5_flow_discover_priorities(struct rte_eth_dev *dev)
9958 {
9959         static const uint16_t vprio[] = {8, 16};
9960         const struct mlx5_priv *priv = dev->data->dev_private;
9961         const struct mlx5_flow_driver_ops *fops;
9962         enum mlx5_flow_drv_type type;
9963         int ret;
9964
9965         type = mlx5_flow_os_get_type();
9966         if (type == MLX5_FLOW_TYPE_MAX) {
9967                 type = MLX5_FLOW_TYPE_VERBS;
9968                 if (priv->sh->devx && priv->config.dv_flow_en)
9969                         type = MLX5_FLOW_TYPE_DV;
9970         }
9971         fops = flow_get_drv_ops(type);
9972         if (fops->discover_priorities == NULL) {
9973                 DRV_LOG(ERR, "Priority discovery not supported");
9974                 rte_errno = ENOTSUP;
9975                 return -rte_errno;
9976         }
9977         ret = fops->discover_priorities(dev, vprio, RTE_DIM(vprio));
9978         if (ret < 0)
9979                 return ret;
9980         switch (ret) {
9981         case 8:
9982                 ret = RTE_DIM(priority_map_3);
9983                 break;
9984         case 16:
9985                 ret = RTE_DIM(priority_map_5);
9986                 break;
9987         default:
9988                 rte_errno = ENOTSUP;
9989                 DRV_LOG(ERR,
9990                         "port %u maximum priority: %d expected 8/16",
9991                         dev->data->port_id, ret);
9992                 return -rte_errno;
9993         }
9994         DRV_LOG(INFO, "port %u supported flow priorities:"
9995                 " 0-%d for ingress or egress root table,"
9996                 " 0-%d for non-root table or transfer root table.",
9997                 dev->data->port_id, ret - 2,
9998                 MLX5_NON_ROOT_FLOW_MAX_PRIO - 1);
9999         return ret;
10000 }
10001
10002 /**
10003  * Adjust flow priority based on the highest layer and the request priority.
10004  *
10005  * @param[in] dev
10006  *   Pointer to the Ethernet device structure.
10007  * @param[in] priority
10008  *   The rule base priority.
10009  * @param[in] subpriority
10010  *   The priority based on the items.
10011  *
10012  * @return
10013  *   The new priority.
10014  */
10015 uint32_t
10016 mlx5_flow_adjust_priority(struct rte_eth_dev *dev, int32_t priority,
10017                           uint32_t subpriority)
10018 {
10019         uint32_t res = 0;
10020         struct mlx5_priv *priv = dev->data->dev_private;
10021
10022         switch (priv->sh->flow_max_priority) {
10023         case RTE_DIM(priority_map_3):
10024                 res = priority_map_3[priority][subpriority];
10025                 break;
10026         case RTE_DIM(priority_map_5):
10027                 res = priority_map_5[priority][subpriority];
10028                 break;
10029         }
10030         return  res;
10031 }