lib/librte_ethdev/rte_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 <errno.h>
   7 #include <stddef.h>
   8 #include <stdint.h>
   9 #include <string.h>
  10
  11 #include <rte_common.h>
  12 #include <rte_errno.h>
  13 #include <rte_branch_prediction.h>
  14 #include <rte_string_fns.h>
  15 #include <rte_mbuf.h>
  16 #include <rte_mbuf_dyn.h>
  17 #include "rte_ethdev.h"
  18 #include "rte_flow_driver.h"
  19 #include "rte_flow.h"
  20
  21 /* Mbuf dynamic field name for metadata. */
  22 int32_t rte_flow_dynf_metadata_offs = -1;
  23
  24 /* Mbuf dynamic field flag bit number for metadata. */
  25 uint64_t rte_flow_dynf_metadata_mask;
  26
  27 /**
  28  * Flow elements description tables.
  29  */
  30 struct rte_flow_desc_data {
  31         const char *name;
  32         size_t size;
  33 };
  34
  35 /** Generate flow_item[] entry. */
  36 #define MK_FLOW_ITEM(t, s) \
  37         [RTE_FLOW_ITEM_TYPE_ ## t] = { \
  38                 .name = # t, \
  39                 .size = s, \
  40         }
  41
  42 /** Information about known flow pattern items. */
  43 static const struct rte_flow_desc_data rte_flow_desc_item[] = {
  44         MK_FLOW_ITEM(END, 0),
  45         MK_FLOW_ITEM(VOID, 0),
  46         MK_FLOW_ITEM(INVERT, 0),
  47         MK_FLOW_ITEM(ANY, sizeof(struct rte_flow_item_any)),
  48         MK_FLOW_ITEM(PF, 0),
  49         MK_FLOW_ITEM(VF, sizeof(struct rte_flow_item_vf)),
  50         MK_FLOW_ITEM(PHY_PORT, sizeof(struct rte_flow_item_phy_port)),
  51         MK_FLOW_ITEM(PORT_ID, sizeof(struct rte_flow_item_port_id)),
  52         MK_FLOW_ITEM(RAW, sizeof(struct rte_flow_item_raw)),
  53         MK_FLOW_ITEM(ETH, sizeof(struct rte_flow_item_eth)),
  54         MK_FLOW_ITEM(VLAN, sizeof(struct rte_flow_item_vlan)),
  55         MK_FLOW_ITEM(IPV4, sizeof(struct rte_flow_item_ipv4)),
  56         MK_FLOW_ITEM(IPV6, sizeof(struct rte_flow_item_ipv6)),
  57         MK_FLOW_ITEM(ICMP, sizeof(struct rte_flow_item_icmp)),
  58         MK_FLOW_ITEM(UDP, sizeof(struct rte_flow_item_udp)),
  59         MK_FLOW_ITEM(TCP, sizeof(struct rte_flow_item_tcp)),
  60         MK_FLOW_ITEM(SCTP, sizeof(struct rte_flow_item_sctp)),
  61         MK_FLOW_ITEM(VXLAN, sizeof(struct rte_flow_item_vxlan)),
  62         MK_FLOW_ITEM(E_TAG, sizeof(struct rte_flow_item_e_tag)),
  63         MK_FLOW_ITEM(NVGRE, sizeof(struct rte_flow_item_nvgre)),
  64         MK_FLOW_ITEM(MPLS, sizeof(struct rte_flow_item_mpls)),
  65         MK_FLOW_ITEM(GRE, sizeof(struct rte_flow_item_gre)),
  66         MK_FLOW_ITEM(FUZZY, sizeof(struct rte_flow_item_fuzzy)),
  67         MK_FLOW_ITEM(GTP, sizeof(struct rte_flow_item_gtp)),
  68         MK_FLOW_ITEM(GTPC, sizeof(struct rte_flow_item_gtp)),
  69         MK_FLOW_ITEM(GTPU, sizeof(struct rte_flow_item_gtp)),
  70         MK_FLOW_ITEM(ESP, sizeof(struct rte_flow_item_esp)),
  71         MK_FLOW_ITEM(GENEVE, sizeof(struct rte_flow_item_geneve)),
  72         MK_FLOW_ITEM(VXLAN_GPE, sizeof(struct rte_flow_item_vxlan_gpe)),
  73         MK_FLOW_ITEM(ARP_ETH_IPV4, sizeof(struct rte_flow_item_arp_eth_ipv4)),
  74         MK_FLOW_ITEM(IPV6_EXT, sizeof(struct rte_flow_item_ipv6_ext)),
  75         MK_FLOW_ITEM(IPV6_FRAG_EXT, sizeof(struct rte_flow_item_ipv6_frag_ext)),
  76         MK_FLOW_ITEM(ICMP6, sizeof(struct rte_flow_item_icmp6)),
  77         MK_FLOW_ITEM(ICMP6_ND_NS, sizeof(struct rte_flow_item_icmp6_nd_ns)),
  78         MK_FLOW_ITEM(ICMP6_ND_NA, sizeof(struct rte_flow_item_icmp6_nd_na)),
  79         MK_FLOW_ITEM(ICMP6_ND_OPT, sizeof(struct rte_flow_item_icmp6_nd_opt)),
  80         MK_FLOW_ITEM(ICMP6_ND_OPT_SLA_ETH,
  81                      sizeof(struct rte_flow_item_icmp6_nd_opt_sla_eth)),
  82         MK_FLOW_ITEM(ICMP6_ND_OPT_TLA_ETH,
  83                      sizeof(struct rte_flow_item_icmp6_nd_opt_tla_eth)),
  84         MK_FLOW_ITEM(MARK, sizeof(struct rte_flow_item_mark)),
  85         MK_FLOW_ITEM(META, sizeof(struct rte_flow_item_meta)),
  86         MK_FLOW_ITEM(TAG, sizeof(struct rte_flow_item_tag)),
  87         MK_FLOW_ITEM(GRE_KEY, sizeof(rte_be32_t)),
  88         MK_FLOW_ITEM(GTP_PSC, sizeof(struct rte_flow_item_gtp_psc)),
  89         MK_FLOW_ITEM(PPPOES, sizeof(struct rte_flow_item_pppoe)),
  90         MK_FLOW_ITEM(PPPOED, sizeof(struct rte_flow_item_pppoe)),
  91         MK_FLOW_ITEM(PPPOE_PROTO_ID,
  92                         sizeof(struct rte_flow_item_pppoe_proto_id)),
  93         MK_FLOW_ITEM(NSH, sizeof(struct rte_flow_item_nsh)),
  94         MK_FLOW_ITEM(IGMP, sizeof(struct rte_flow_item_igmp)),
  95         MK_FLOW_ITEM(AH, sizeof(struct rte_flow_item_ah)),
  96         MK_FLOW_ITEM(HIGIG2, sizeof(struct rte_flow_item_higig2_hdr)),
  97         MK_FLOW_ITEM(L2TPV3OIP, sizeof(struct rte_flow_item_l2tpv3oip)),
  98         MK_FLOW_ITEM(PFCP, sizeof(struct rte_flow_item_pfcp)),
  99         MK_FLOW_ITEM(ECPRI, sizeof(struct rte_flow_item_ecpri)),
 100 };
 101
 102 /** Generate flow_action[] entry. */
 103 #define MK_FLOW_ACTION(t, s) \
 104         [RTE_FLOW_ACTION_TYPE_ ## t] = { \
 105                 .name = # t, \
 106                 .size = s, \
 107         }
 108
 109 /** Information about known flow actions. */
 110 static const struct rte_flow_desc_data rte_flow_desc_action[] = {
 111         MK_FLOW_ACTION(END, 0),
 112         MK_FLOW_ACTION(VOID, 0),
 113         MK_FLOW_ACTION(PASSTHRU, 0),
 114         MK_FLOW_ACTION(JUMP, sizeof(struct rte_flow_action_jump)),
 115         MK_FLOW_ACTION(MARK, sizeof(struct rte_flow_action_mark)),
 116         MK_FLOW_ACTION(FLAG, 0),
 117         MK_FLOW_ACTION(QUEUE, sizeof(struct rte_flow_action_queue)),
 118         MK_FLOW_ACTION(DROP, 0),
 119         MK_FLOW_ACTION(COUNT, sizeof(struct rte_flow_action_count)),
 120         MK_FLOW_ACTION(RSS, sizeof(struct rte_flow_action_rss)),
 121         MK_FLOW_ACTION(PF, 0),
 122         MK_FLOW_ACTION(VF, sizeof(struct rte_flow_action_vf)),
 123         MK_FLOW_ACTION(PHY_PORT, sizeof(struct rte_flow_action_phy_port)),
 124         MK_FLOW_ACTION(PORT_ID, sizeof(struct rte_flow_action_port_id)),
 125         MK_FLOW_ACTION(METER, sizeof(struct rte_flow_action_meter)),
 126         MK_FLOW_ACTION(SECURITY, sizeof(struct rte_flow_action_security)),
 127         MK_FLOW_ACTION(OF_SET_MPLS_TTL,
 128                        sizeof(struct rte_flow_action_of_set_mpls_ttl)),
 129         MK_FLOW_ACTION(OF_DEC_MPLS_TTL, 0),
 130         MK_FLOW_ACTION(OF_SET_NW_TTL,
 131                        sizeof(struct rte_flow_action_of_set_nw_ttl)),
 132         MK_FLOW_ACTION(OF_DEC_NW_TTL, 0),
 133         MK_FLOW_ACTION(OF_COPY_TTL_OUT, 0),
 134         MK_FLOW_ACTION(OF_COPY_TTL_IN, 0),
 135         MK_FLOW_ACTION(OF_POP_VLAN, 0),
 136         MK_FLOW_ACTION(OF_PUSH_VLAN,
 137                        sizeof(struct rte_flow_action_of_push_vlan)),
 138         MK_FLOW_ACTION(OF_SET_VLAN_VID,
 139                        sizeof(struct rte_flow_action_of_set_vlan_vid)),
 140         MK_FLOW_ACTION(OF_SET_VLAN_PCP,
 141                        sizeof(struct rte_flow_action_of_set_vlan_pcp)),
 142         MK_FLOW_ACTION(OF_POP_MPLS,
 143                        sizeof(struct rte_flow_action_of_pop_mpls)),
 144         MK_FLOW_ACTION(OF_PUSH_MPLS,
 145                        sizeof(struct rte_flow_action_of_push_mpls)),
 146         MK_FLOW_ACTION(VXLAN_ENCAP, sizeof(struct rte_flow_action_vxlan_encap)),
 147         MK_FLOW_ACTION(VXLAN_DECAP, 0),
 148         MK_FLOW_ACTION(NVGRE_ENCAP, sizeof(struct rte_flow_action_vxlan_encap)),
 149         MK_FLOW_ACTION(NVGRE_DECAP, 0),
 150         MK_FLOW_ACTION(RAW_ENCAP, sizeof(struct rte_flow_action_raw_encap)),
 151         MK_FLOW_ACTION(RAW_DECAP, sizeof(struct rte_flow_action_raw_decap)),
 152         MK_FLOW_ACTION(SET_IPV4_SRC,
 153                        sizeof(struct rte_flow_action_set_ipv4)),
 154         MK_FLOW_ACTION(SET_IPV4_DST,
 155                        sizeof(struct rte_flow_action_set_ipv4)),
 156         MK_FLOW_ACTION(SET_IPV6_SRC,
 157                        sizeof(struct rte_flow_action_set_ipv6)),
 158         MK_FLOW_ACTION(SET_IPV6_DST,
 159                        sizeof(struct rte_flow_action_set_ipv6)),
 160         MK_FLOW_ACTION(SET_TP_SRC,
 161                        sizeof(struct rte_flow_action_set_tp)),
 162         MK_FLOW_ACTION(SET_TP_DST,
 163                        sizeof(struct rte_flow_action_set_tp)),
 164         MK_FLOW_ACTION(MAC_SWAP, 0),
 165         MK_FLOW_ACTION(DEC_TTL, 0),
 166         MK_FLOW_ACTION(SET_TTL, sizeof(struct rte_flow_action_set_ttl)),
 167         MK_FLOW_ACTION(SET_MAC_SRC, sizeof(struct rte_flow_action_set_mac)),
 168         MK_FLOW_ACTION(SET_MAC_DST, sizeof(struct rte_flow_action_set_mac)),
 169         MK_FLOW_ACTION(INC_TCP_SEQ, sizeof(rte_be32_t)),
 170         MK_FLOW_ACTION(DEC_TCP_SEQ, sizeof(rte_be32_t)),
 171         MK_FLOW_ACTION(INC_TCP_ACK, sizeof(rte_be32_t)),
 172         MK_FLOW_ACTION(DEC_TCP_ACK, sizeof(rte_be32_t)),
 173         MK_FLOW_ACTION(SET_TAG, sizeof(struct rte_flow_action_set_tag)),
 174         MK_FLOW_ACTION(SET_META, sizeof(struct rte_flow_action_set_meta)),
 175         MK_FLOW_ACTION(SET_IPV4_DSCP, sizeof(struct rte_flow_action_set_dscp)),
 176         MK_FLOW_ACTION(SET_IPV6_DSCP, sizeof(struct rte_flow_action_set_dscp)),
 177         MK_FLOW_ACTION(AGE, sizeof(struct rte_flow_action_age)),
 178         MK_FLOW_ACTION(SAMPLE, sizeof(struct rte_flow_action_sample)),
 179         /**
 180          * Shared action represented as handle of type
 181          * (struct rte_flow_shared action *) stored in conf field (see
 182          * struct rte_flow_action); no need for additional structure to * store
 183          * shared action handle.
 184          */
 185         MK_FLOW_ACTION(SHARED, 0),
 186 };
 187
 188 int
 189 rte_flow_dynf_metadata_register(void)
 190 {
 191         int offset;
 192         int flag;
 193
 194         static const struct rte_mbuf_dynfield desc_offs = {
 195                 .name = RTE_MBUF_DYNFIELD_METADATA_NAME,
 196                 .size = sizeof(uint32_t),
 197                 .align = __alignof__(uint32_t),
 198         };
 199         static const struct rte_mbuf_dynflag desc_flag = {
 200                 .name = RTE_MBUF_DYNFLAG_METADATA_NAME,
 201         };
 202
 203         offset = rte_mbuf_dynfield_register(&desc_offs);
 204         if (offset < 0)
 205                 goto error;
 206         flag = rte_mbuf_dynflag_register(&desc_flag);
 207         if (flag < 0)
 208                 goto error;
 209         rte_flow_dynf_metadata_offs = offset;
 210         rte_flow_dynf_metadata_mask = (1ULL << flag);
 211         return 0;
 212
 213 error:
 214         rte_flow_dynf_metadata_offs = -1;
 215         rte_flow_dynf_metadata_mask = 0ULL;
 216         return -rte_errno;
 217 }
 218
 219 static inline void
 220 fts_enter(struct rte_eth_dev *dev)
 221 {
 222         if (!(dev->data->dev_flags & RTE_ETH_DEV_FLOW_OPS_THREAD_SAFE))
 223                 pthread_mutex_lock(&dev->data->flow_ops_mutex);
 224 }
 225
 226 static inline void
 227 fts_exit(struct rte_eth_dev *dev)
 228 {
 229         if (!(dev->data->dev_flags & RTE_ETH_DEV_FLOW_OPS_THREAD_SAFE))
 230                 pthread_mutex_unlock(&dev->data->flow_ops_mutex);
 231 }
 232
 233 static int
 234 flow_err(uint16_t port_id, int ret, struct rte_flow_error *error)
 235 {
 236         if (ret == 0)
 237                 return 0;
 238         if (rte_eth_dev_is_removed(port_id))
 239                 return rte_flow_error_set(error, EIO,
 240                                           RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 241                                           NULL, rte_strerror(EIO));
 242         return ret;
 243 }
 244
 245 /* Get generic flow operations structure from a port. */
 246 const struct rte_flow_ops *
 247 rte_flow_ops_get(uint16_t port_id, struct rte_flow_error *error)
 248 {
 249         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
 250         const struct rte_flow_ops *ops;
 251         int code;
 252
 253         if (unlikely(!rte_eth_dev_is_valid_port(port_id)))
 254                 code = ENODEV;
 255         else if (unlikely(!dev->dev_ops->filter_ctrl ||
 256                           dev->dev_ops->filter_ctrl(dev,
 257                                                     RTE_ETH_FILTER_GENERIC,
 258                                                     RTE_ETH_FILTER_GET,
 259                                                     &ops) ||
 260                           !ops))
 261                 code = ENOSYS;
 262         else
 263                 return ops;
 264         rte_flow_error_set(error, code, RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 265                            NULL, rte_strerror(code));
 266         return NULL;
 267 }
 268
 269 /* Check whether a flow rule can be created on a given port. */
 270 int
 271 rte_flow_validate(uint16_t port_id,
 272                   const struct rte_flow_attr *attr,
 273                   const struct rte_flow_item pattern[],
 274                   const struct rte_flow_action actions[],
 275                   struct rte_flow_error *error)
 276 {
 277         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
 278         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
 279         int ret;
 280
 281         if (unlikely(!ops))
 282                 return -rte_errno;
 283         if (likely(!!ops->validate)) {
 284                 fts_enter(dev);
 285                 ret = ops->validate(dev, attr, pattern, actions, error);
 286                 fts_exit(dev);
 287                 return flow_err(port_id, ret, error);
 288         }
 289         return rte_flow_error_set(error, ENOSYS,
 290                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 291                                   NULL, rte_strerror(ENOSYS));
 292 }
 293
 294 /* Create a flow rule on a given port. */
 295 struct rte_flow *
 296 rte_flow_create(uint16_t port_id,
 297                 const struct rte_flow_attr *attr,
 298                 const struct rte_flow_item pattern[],
 299                 const struct rte_flow_action actions[],
 300                 struct rte_flow_error *error)
 301 {
 302         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
 303         struct rte_flow *flow;
 304         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
 305
 306         if (unlikely(!ops))
 307                 return NULL;
 308         if (likely(!!ops->create)) {
 309                 fts_enter(dev);
 310                 flow = ops->create(dev, attr, pattern, actions, error);
 311                 fts_exit(dev);
 312                 if (flow == NULL)
 313                         flow_err(port_id, -rte_errno, error);
 314                 return flow;
 315         }
 316         rte_flow_error_set(error, ENOSYS, RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 317                            NULL, rte_strerror(ENOSYS));
 318         return NULL;
 319 }
 320
 321 /* Destroy a flow rule on a given port. */
 322 int
 323 rte_flow_destroy(uint16_t port_id,
 324                  struct rte_flow *flow,
 325                  struct rte_flow_error *error)
 326 {
 327         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
 328         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
 329         int ret;
 330
 331         if (unlikely(!ops))
 332                 return -rte_errno;
 333         if (likely(!!ops->destroy)) {
 334                 fts_enter(dev);
 335                 ret = ops->destroy(dev, flow, error);
 336                 fts_exit(dev);
 337                 return flow_err(port_id, ret, error);
 338         }
 339         return rte_flow_error_set(error, ENOSYS,
 340                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 341                                   NULL, rte_strerror(ENOSYS));
 342 }
 343
 344 /* Destroy all flow rules associated with a port. */
 345 int
 346 rte_flow_flush(uint16_t port_id,
 347                struct rte_flow_error *error)
 348 {
 349         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
 350         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
 351         int ret;
 352
 353         if (unlikely(!ops))
 354                 return -rte_errno;
 355         if (likely(!!ops->flush)) {
 356                 fts_enter(dev);
 357                 ret = ops->flush(dev, error);
 358                 fts_exit(dev);
 359                 return flow_err(port_id, ret, error);
 360         }
 361         return rte_flow_error_set(error, ENOSYS,
 362                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 363                                   NULL, rte_strerror(ENOSYS));
 364 }
 365
 366 /* Query an existing flow rule. */
 367 int
 368 rte_flow_query(uint16_t port_id,
 369                struct rte_flow *flow,
 370                const struct rte_flow_action *action,
 371                void *data,
 372                struct rte_flow_error *error)
 373 {
 374         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
 375         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
 376         int ret;
 377
 378         if (!ops)
 379                 return -rte_errno;
 380         if (likely(!!ops->query)) {
 381                 fts_enter(dev);
 382                 ret = ops->query(dev, flow, action, data, error);
 383                 fts_exit(dev);
 384                 return flow_err(port_id, ret, error);
 385         }
 386         return rte_flow_error_set(error, ENOSYS,
 387                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 388                                   NULL, rte_strerror(ENOSYS));
 389 }
 390
 391 /* Restrict ingress traffic to the defined flow rules. */
 392 int
 393 rte_flow_isolate(uint16_t port_id,
 394                  int set,
 395                  struct rte_flow_error *error)
 396 {
 397         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
 398         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
 399         int ret;
 400
 401         if (!ops)
 402                 return -rte_errno;
 403         if (likely(!!ops->isolate)) {
 404                 fts_enter(dev);
 405                 ret = ops->isolate(dev, set, error);
 406                 fts_exit(dev);
 407                 return flow_err(port_id, ret, error);
 408         }
 409         return rte_flow_error_set(error, ENOSYS,
 410                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 411                                   NULL, rte_strerror(ENOSYS));
 412 }
 413
 414 /* Initialize flow error structure. */
 415 int
 416 rte_flow_error_set(struct rte_flow_error *error,
 417                    int code,
 418                    enum rte_flow_error_type type,
 419                    const void *cause,
 420                    const char *message)
 421 {
 422         if (error) {
 423                 *error = (struct rte_flow_error){
 424                         .type = type,
 425                         .cause = cause,
 426                         .message = message,
 427                 };
 428         }
 429         rte_errno = code;
 430         return -code;
 431 }
 432
 433 /** Pattern item specification types. */
 434 enum rte_flow_conv_item_spec_type {
 435         RTE_FLOW_CONV_ITEM_SPEC,
 436         RTE_FLOW_CONV_ITEM_LAST,
 437         RTE_FLOW_CONV_ITEM_MASK,
 438 };
 439
 440 /**
 441  * Copy pattern item specification.
 442  *
 443  * @param[out] buf
 444  *   Output buffer. Can be NULL if @p size is zero.
 445  * @param size
 446  *   Size of @p buf in bytes.
 447  * @param[in] item
 448  *   Pattern item to copy specification from.
 449  * @param type
 450  *   Specification selector for either @p spec, @p last or @p mask.
 451  *
 452  * @return
 453  *   Number of bytes needed to store pattern item specification regardless
 454  *   of @p size. @p buf contents are truncated to @p size if not large
 455  *   enough.
 456  */
 457 static size_t
 458 rte_flow_conv_item_spec(void *buf, const size_t size,
 459                         const struct rte_flow_item *item,
 460                         enum rte_flow_conv_item_spec_type type)
 461 {
 462         size_t off;
 463         const void *data =
 464                 type == RTE_FLOW_CONV_ITEM_SPEC ? item->spec :
 465                 type == RTE_FLOW_CONV_ITEM_LAST ? item->last :
 466                 type == RTE_FLOW_CONV_ITEM_MASK ? item->mask :
 467                 NULL;
 468
 469         switch (item->type) {
 470                 union {
 471                         const struct rte_flow_item_raw *raw;
 472                 } spec;
 473                 union {
 474                         const struct rte_flow_item_raw *raw;
 475                 } last;
 476                 union {
 477                         const struct rte_flow_item_raw *raw;
 478                 } mask;
 479                 union {
 480                         const struct rte_flow_item_raw *raw;
 481                 } src;
 482                 union {
 483                         struct rte_flow_item_raw *raw;
 484                 } dst;
 485                 size_t tmp;
 486
 487         case RTE_FLOW_ITEM_TYPE_RAW:
 488                 spec.raw = item->spec;
 489                 last.raw = item->last ? item->last : item->spec;
 490                 mask.raw = item->mask ? item->mask : &rte_flow_item_raw_mask;
 491                 src.raw = data;
 492                 dst.raw = buf;
 493                 rte_memcpy(dst.raw,
 494                            (&(struct rte_flow_item_raw){
 495                                 .relative = src.raw->relative,
 496                                 .search = src.raw->search,
 497                                 .reserved = src.raw->reserved,
 498                                 .offset = src.raw->offset,
 499                                 .limit = src.raw->limit,
 500                                 .length = src.raw->length,
 501                            }),
 502                            size > sizeof(*dst.raw) ? sizeof(*dst.raw) : size);
 503                 off = sizeof(*dst.raw);
 504                 if (type == RTE_FLOW_CONV_ITEM_SPEC ||
 505                     (type == RTE_FLOW_CONV_ITEM_MASK &&
 506                      ((spec.raw->length & mask.raw->length) >=
 507                       (last.raw->length & mask.raw->length))))
 508                         tmp = spec.raw->length & mask.raw->length;
 509                 else
 510                         tmp = last.raw->length & mask.raw->length;
 511                 if (tmp) {
 512                         off = RTE_ALIGN_CEIL(off, sizeof(*dst.raw->pattern));
 513                         if (size >= off + tmp)
 514                                 dst.raw->pattern = rte_memcpy
 515                                         ((void *)((uintptr_t)dst.raw + off),
 516                                          src.raw->pattern, tmp);
 517                         off += tmp;
 518                 }
 519                 break;
 520         default:
 521                 /**
 522                  * allow PMD private flow item
 523                  */
 524                 off = (int)item->type >= 0 ?
 525                       rte_flow_desc_item[item->type].size : sizeof(void *);
 526                 rte_memcpy(buf, data, (size > off ? off : size));
 527                 break;
 528         }
 529         return off;
 530 }
 531
 532 /**
 533  * Copy action configuration.
 534  *
 535  * @param[out] buf
 536  *   Output buffer. Can be NULL if @p size is zero.
 537  * @param size
 538  *   Size of @p buf in bytes.
 539  * @param[in] action
 540  *   Action to copy configuration from.
 541  *
 542  * @return
 543  *   Number of bytes needed to store pattern item specification regardless
 544  *   of @p size. @p buf contents are truncated to @p size if not large
 545  *   enough.
 546  */
 547 static size_t
 548 rte_flow_conv_action_conf(void *buf, const size_t size,
 549                           const struct rte_flow_action *action)
 550 {
 551         size_t off;
 552
 553         switch (action->type) {
 554                 union {
 555                         const struct rte_flow_action_rss *rss;
 556                         const struct rte_flow_action_vxlan_encap *vxlan_encap;
 557                         const struct rte_flow_action_nvgre_encap *nvgre_encap;
 558                 } src;
 559                 union {
 560                         struct rte_flow_action_rss *rss;
 561                         struct rte_flow_action_vxlan_encap *vxlan_encap;
 562                         struct rte_flow_action_nvgre_encap *nvgre_encap;
 563                 } dst;
 564                 size_t tmp;
 565                 int ret;
 566
 567         case RTE_FLOW_ACTION_TYPE_RSS:
 568                 src.rss = action->conf;
 569                 dst.rss = buf;
 570                 rte_memcpy(dst.rss,
 571                            (&(struct rte_flow_action_rss){
 572                                 .func = src.rss->func,
 573                                 .level = src.rss->level,
 574                                 .types = src.rss->types,
 575                                 .key_len = src.rss->key_len,
 576                                 .queue_num = src.rss->queue_num,
 577                            }),
 578                            size > sizeof(*dst.rss) ? sizeof(*dst.rss) : size);
 579                 off = sizeof(*dst.rss);
 580                 if (src.rss->key_len && src.rss->key) {
 581                         off = RTE_ALIGN_CEIL(off, sizeof(*dst.rss->key));
 582                         tmp = sizeof(*src.rss->key) * src.rss->key_len;
 583                         if (size >= off + tmp)
 584                                 dst.rss->key = rte_memcpy
 585                                         ((void *)((uintptr_t)dst.rss + off),
 586                                          src.rss->key, tmp);
 587                         off += tmp;
 588                 }
 589                 if (src.rss->queue_num) {
 590                         off = RTE_ALIGN_CEIL(off, sizeof(*dst.rss->queue));
 591                         tmp = sizeof(*src.rss->queue) * src.rss->queue_num;
 592                         if (size >= off + tmp)
 593                                 dst.rss->queue = rte_memcpy
 594                                         ((void *)((uintptr_t)dst.rss + off),
 595                                          src.rss->queue, tmp);
 596                         off += tmp;
 597                 }
 598                 break;
 599         case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
 600         case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP:
 601                 src.vxlan_encap = action->conf;
 602                 dst.vxlan_encap = buf;
 603                 RTE_BUILD_BUG_ON(sizeof(*src.vxlan_encap) !=
 604                                  sizeof(*src.nvgre_encap) ||
 605                                  offsetof(struct rte_flow_action_vxlan_encap,
 606                                           definition) !=
 607                                  offsetof(struct rte_flow_action_nvgre_encap,
 608                                           definition));
 609                 off = sizeof(*dst.vxlan_encap);
 610                 if (src.vxlan_encap->definition) {
 611                         off = RTE_ALIGN_CEIL
 612                                 (off, sizeof(*dst.vxlan_encap->definition));
 613                         ret = rte_flow_conv
 614                                 (RTE_FLOW_CONV_OP_PATTERN,
 615                                  (void *)((uintptr_t)dst.vxlan_encap + off),
 616                                  size > off ? size - off : 0,
 617                                  src.vxlan_encap->definition, NULL);
 618                         if (ret < 0)
 619                                 return 0;
 620                         if (size >= off + ret)
 621                                 dst.vxlan_encap->definition =
 622                                         (void *)((uintptr_t)dst.vxlan_encap +
 623                                                  off);
 624                         off += ret;
 625                 }
 626                 break;
 627         default:
 628                 /**
 629                  * allow PMD private flow action
 630                  */
 631                 off = (int)action->type >= 0 ?
 632                       rte_flow_desc_action[action->type].size : sizeof(void *);
 633                 rte_memcpy(buf, action->conf, (size > off ? off : size));
 634                 break;
 635         }
 636         return off;
 637 }
 638
 639 /**
 640  * Copy a list of pattern items.
 641  *
 642  * @param[out] dst
 643  *   Destination buffer. Can be NULL if @p size is zero.
 644  * @param size
 645  *   Size of @p dst in bytes.
 646  * @param[in] src
 647  *   Source pattern items.
 648  * @param num
 649  *   Maximum number of pattern items to process from @p src or 0 to process
 650  *   the entire list. In both cases, processing stops after
 651  *   RTE_FLOW_ITEM_TYPE_END is encountered.
 652  * @param[out] error
 653  *   Perform verbose error reporting if not NULL.
 654  *
 655  * @return
 656  *   A positive value representing the number of bytes needed to store
 657  *   pattern items regardless of @p size on success (@p buf contents are
 658  *   truncated to @p size if not large enough), a negative errno value
 659  *   otherwise and rte_errno is set.
 660  */
 661 static int
 662 rte_flow_conv_pattern(struct rte_flow_item *dst,
 663                       const size_t size,
 664                       const struct rte_flow_item *src,
 665                       unsigned int num,
 666                       struct rte_flow_error *error)
 667 {
 668         uintptr_t data = (uintptr_t)dst;
 669         size_t off;
 670         size_t ret;
 671         unsigned int i;
 672
 673         for (i = 0, off = 0; !num || i != num; ++i, ++src, ++dst) {
 674                 /**
 675                  * allow PMD private flow item
 676                  */
 677                 if (((int)src->type >= 0) &&
 678                         ((size_t)src->type >= RTE_DIM(rte_flow_desc_item) ||
 679                     !rte_flow_desc_item[src->type].name))
 680                         return rte_flow_error_set
 681                                 (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, src,
 682                                  "cannot convert unknown item type");
 683                 if (size >= off + sizeof(*dst))
 684                         *dst = (struct rte_flow_item){
 685                                 .type = src->type,
 686                         };
 687                 off += sizeof(*dst);
 688                 if (!src->type)
 689                         num = i + 1;
 690         }
 691         num = i;
 692         src -= num;
 693         dst -= num;
 694         do {
 695                 if (src->spec) {
 696                         off = RTE_ALIGN_CEIL(off, sizeof(double));
 697                         ret = rte_flow_conv_item_spec
 698                                 ((void *)(data + off),
 699                                  size > off ? size - off : 0, src,
 700                                  RTE_FLOW_CONV_ITEM_SPEC);
 701                         if (size && size >= off + ret)
 702                                 dst->spec = (void *)(data + off);
 703                         off += ret;
 704
 705                 }
 706                 if (src->last) {
 707                         off = RTE_ALIGN_CEIL(off, sizeof(double));
 708                         ret = rte_flow_conv_item_spec
 709                                 ((void *)(data + off),
 710                                  size > off ? size - off : 0, src,
 711                                  RTE_FLOW_CONV_ITEM_LAST);
 712                         if (size && size >= off + ret)
 713                                 dst->last = (void *)(data + off);
 714                         off += ret;
 715                 }
 716                 if (src->mask) {
 717                         off = RTE_ALIGN_CEIL(off, sizeof(double));
 718                         ret = rte_flow_conv_item_spec
 719                                 ((void *)(data + off),
 720                                  size > off ? size - off : 0, src,
 721                                  RTE_FLOW_CONV_ITEM_MASK);
 722                         if (size && size >= off + ret)
 723                                 dst->mask = (void *)(data + off);
 724                         off += ret;
 725                 }
 726                 ++src;
 727                 ++dst;
 728         } while (--num);
 729         return off;
 730 }
 731
 732 /**
 733  * Copy a list of actions.
 734  *
 735  * @param[out] dst
 736  *   Destination buffer. Can be NULL if @p size is zero.
 737  * @param size
 738  *   Size of @p dst in bytes.
 739  * @param[in] src
 740  *   Source actions.
 741  * @param num
 742  *   Maximum number of actions to process from @p src or 0 to process the
 743  *   entire list. In both cases, processing stops after
 744  *   RTE_FLOW_ACTION_TYPE_END is encountered.
 745  * @param[out] error
 746  *   Perform verbose error reporting if not NULL.
 747  *
 748  * @return
 749  *   A positive value representing the number of bytes needed to store
 750  *   actions regardless of @p size on success (@p buf contents are truncated
 751  *   to @p size if not large enough), a negative errno value otherwise and
 752  *   rte_errno is set.
 753  */
 754 static int
 755 rte_flow_conv_actions(struct rte_flow_action *dst,
 756                       const size_t size,
 757                       const struct rte_flow_action *src,
 758                       unsigned int num,
 759                       struct rte_flow_error *error)
 760 {
 761         uintptr_t data = (uintptr_t)dst;
 762         size_t off;
 763         size_t ret;
 764         unsigned int i;
 765
 766         for (i = 0, off = 0; !num || i != num; ++i, ++src, ++dst) {
 767                 /**
 768                  * allow PMD private flow action
 769                  */
 770                 if (((int)src->type >= 0) &&
 771                     ((size_t)src->type >= RTE_DIM(rte_flow_desc_action) ||
 772                     !rte_flow_desc_action[src->type].name))
 773                         return rte_flow_error_set
 774                                 (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION,
 775                                  src, "cannot convert unknown action type");
 776                 if (size >= off + sizeof(*dst))
 777                         *dst = (struct rte_flow_action){
 778                                 .type = src->type,
 779                         };
 780                 off += sizeof(*dst);
 781                 if (!src->type)
 782                         num = i + 1;
 783         }
 784         num = i;
 785         src -= num;
 786         dst -= num;
 787         do {
 788                 if (src->conf) {
 789                         off = RTE_ALIGN_CEIL(off, sizeof(double));
 790                         ret = rte_flow_conv_action_conf
 791                                 ((void *)(data + off),
 792                                  size > off ? size - off : 0, src);
 793                         if (size && size >= off + ret)
 794                                 dst->conf = (void *)(data + off);
 795                         off += ret;
 796                 }
 797                 ++src;
 798                 ++dst;
 799         } while (--num);
 800         return off;
 801 }
 802
 803 /**
 804  * Copy flow rule components.
 805  *
 806  * This comprises the flow rule descriptor itself, attributes, pattern and
 807  * actions list. NULL components in @p src are skipped.
 808  *
 809  * @param[out] dst
 810  *   Destination buffer. Can be NULL if @p size is zero.
 811  * @param size
 812  *   Size of @p dst in bytes.
 813  * @param[in] src
 814  *   Source flow rule descriptor.
 815  * @param[out] error
 816  *   Perform verbose error reporting if not NULL.
 817  *
 818  * @return
 819  *   A positive value representing the number of bytes needed to store all
 820  *   components including the descriptor regardless of @p size on success
 821  *   (@p buf contents are truncated to @p size if not large enough), a
 822  *   negative errno value otherwise and rte_errno is set.
 823  */
 824 static int
 825 rte_flow_conv_rule(struct rte_flow_conv_rule *dst,
 826                    const size_t size,
 827                    const struct rte_flow_conv_rule *src,
 828                    struct rte_flow_error *error)
 829 {
 830         size_t off;
 831         int ret;
 832
 833         rte_memcpy(dst,
 834                    (&(struct rte_flow_conv_rule){
 835                         .attr = NULL,
 836                         .pattern = NULL,
 837                         .actions = NULL,
 838                    }),
 839                    size > sizeof(*dst) ? sizeof(*dst) : size);
 840         off = sizeof(*dst);
 841         if (src->attr_ro) {
 842                 off = RTE_ALIGN_CEIL(off, sizeof(double));
 843                 if (size && size >= off + sizeof(*dst->attr))
 844                         dst->attr = rte_memcpy
 845                                 ((void *)((uintptr_t)dst + off),
 846                                  src->attr_ro, sizeof(*dst->attr));
 847                 off += sizeof(*dst->attr);
 848         }
 849         if (src->pattern_ro) {
 850                 off = RTE_ALIGN_CEIL(off, sizeof(double));
 851                 ret = rte_flow_conv_pattern((void *)((uintptr_t)dst + off),
 852                                             size > off ? size - off : 0,
 853                                             src->pattern_ro, 0, error);
 854                 if (ret < 0)
 855                         return ret;
 856                 if (size && size >= off + (size_t)ret)
 857                         dst->pattern = (void *)((uintptr_t)dst + off);
 858                 off += ret;
 859         }
 860         if (src->actions_ro) {
 861                 off = RTE_ALIGN_CEIL(off, sizeof(double));
 862                 ret = rte_flow_conv_actions((void *)((uintptr_t)dst + off),
 863                                             size > off ? size - off : 0,
 864                                             src->actions_ro, 0, error);
 865                 if (ret < 0)
 866                         return ret;
 867                 if (size >= off + (size_t)ret)
 868                         dst->actions = (void *)((uintptr_t)dst + off);
 869                 off += ret;
 870         }
 871         return off;
 872 }
 873
 874 /**
 875  * Retrieve the name of a pattern item/action type.
 876  *
 877  * @param is_action
 878  *   Nonzero when @p src represents an action type instead of a pattern item
 879  *   type.
 880  * @param is_ptr
 881  *   Nonzero to write string address instead of contents into @p dst.
 882  * @param[out] dst
 883  *   Destination buffer. Can be NULL if @p size is zero.
 884  * @param size
 885  *   Size of @p dst in bytes.
 886  * @param[in] src
 887  *   Depending on @p is_action, source pattern item or action type cast as a
 888  *   pointer.
 889  * @param[out] error
 890  *   Perform verbose error reporting if not NULL.
 891  *
 892  * @return
 893  *   A positive value representing the number of bytes needed to store the
 894  *   name or its address regardless of @p size on success (@p buf contents
 895  *   are truncated to @p size if not large enough), a negative errno value
 896  *   otherwise and rte_errno is set.
 897  */
 898 static int
 899 rte_flow_conv_name(int is_action,
 900                    int is_ptr,
 901                    char *dst,
 902                    const size_t size,
 903                    const void *src,
 904                    struct rte_flow_error *error)
 905 {
 906         struct desc_info {
 907                 const struct rte_flow_desc_data *data;
 908                 size_t num;
 909         };
 910         static const struct desc_info info_rep[2] = {
 911                 { rte_flow_desc_item, RTE_DIM(rte_flow_desc_item), },
 912                 { rte_flow_desc_action, RTE_DIM(rte_flow_desc_action), },
 913         };
 914         const struct desc_info *const info = &info_rep[!!is_action];
 915         unsigned int type = (uintptr_t)src;
 916
 917         if (type >= info->num)
 918                 return rte_flow_error_set
 919                         (error, EINVAL, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
 920                          "unknown object type to retrieve the name of");
 921         if (!is_ptr)
 922                 return strlcpy(dst, info->data[type].name, size);
 923         if (size >= sizeof(const char **))
 924                 *((const char **)dst) = info->data[type].name;
 925         return sizeof(const char **);
 926 }
 927
 928 /** Helper function to convert flow API objects. */
 929 int
 930 rte_flow_conv(enum rte_flow_conv_op op,
 931               void *dst,
 932               size_t size,
 933               const void *src,
 934               struct rte_flow_error *error)
 935 {
 936         switch (op) {
 937                 const struct rte_flow_attr *attr;
 938
 939         case RTE_FLOW_CONV_OP_NONE:
 940                 return 0;
 941         case RTE_FLOW_CONV_OP_ATTR:
 942                 attr = src;
 943                 if (size > sizeof(*attr))
 944                         size = sizeof(*attr);
 945                 rte_memcpy(dst, attr, size);
 946                 return sizeof(*attr);
 947         case RTE_FLOW_CONV_OP_ITEM:
 948                 return rte_flow_conv_pattern(dst, size, src, 1, error);
 949         case RTE_FLOW_CONV_OP_ACTION:
 950                 return rte_flow_conv_actions(dst, size, src, 1, error);
 951         case RTE_FLOW_CONV_OP_PATTERN:
 952                 return rte_flow_conv_pattern(dst, size, src, 0, error);
 953         case RTE_FLOW_CONV_OP_ACTIONS:
 954                 return rte_flow_conv_actions(dst, size, src, 0, error);
 955         case RTE_FLOW_CONV_OP_RULE:
 956                 return rte_flow_conv_rule(dst, size, src, error);
 957         case RTE_FLOW_CONV_OP_ITEM_NAME:
 958                 return rte_flow_conv_name(0, 0, dst, size, src, error);
 959         case RTE_FLOW_CONV_OP_ACTION_NAME:
 960                 return rte_flow_conv_name(1, 0, dst, size, src, error);
 961         case RTE_FLOW_CONV_OP_ITEM_NAME_PTR:
 962                 return rte_flow_conv_name(0, 1, dst, size, src, error);
 963         case RTE_FLOW_CONV_OP_ACTION_NAME_PTR:
 964                 return rte_flow_conv_name(1, 1, dst, size, src, error);
 965         }
 966         return rte_flow_error_set
 967                 (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
 968                  "unknown object conversion operation");
 969 }
 970
 971 /** Store a full rte_flow description. */
 972 size_t
 973 rte_flow_copy(struct rte_flow_desc *desc, size_t len,
 974               const struct rte_flow_attr *attr,
 975               const struct rte_flow_item *items,
 976               const struct rte_flow_action *actions)
 977 {
 978         /*
 979          * Overlap struct rte_flow_conv with struct rte_flow_desc in order
 980          * to convert the former to the latter without wasting space.
 981          */
 982         struct rte_flow_conv_rule *dst =
 983                 len ?
 984                 (void *)((uintptr_t)desc +
 985                          (offsetof(struct rte_flow_desc, actions) -
 986                           offsetof(struct rte_flow_conv_rule, actions))) :
 987                 NULL;
 988         size_t dst_size =
 989                 len > sizeof(*desc) - sizeof(*dst) ?
 990                 len - (sizeof(*desc) - sizeof(*dst)) :
 991                 0;
 992         struct rte_flow_conv_rule src = {
 993                 .attr_ro = NULL,
 994                 .pattern_ro = items,
 995                 .actions_ro = actions,
 996         };
 997         int ret;
 998
 999         RTE_BUILD_BUG_ON(sizeof(struct rte_flow_desc) <
1000                          sizeof(struct rte_flow_conv_rule));
1001         if (dst_size &&
1002             (&dst->pattern != &desc->items ||
1003              &dst->actions != &desc->actions ||
1004              (uintptr_t)(dst + 1) != (uintptr_t)(desc + 1))) {
1005                 rte_errno = EINVAL;
1006                 return 0;
1007         }
1008         ret = rte_flow_conv(RTE_FLOW_CONV_OP_RULE, dst, dst_size, &src, NULL);
1009         if (ret < 0)
1010                 return 0;
1011         ret += sizeof(*desc) - sizeof(*dst);
1012         rte_memcpy(desc,
1013                    (&(struct rte_flow_desc){
1014                         .size = ret,
1015                         .attr = *attr,
1016                         .items = dst_size ? dst->pattern : NULL,
1017                         .actions = dst_size ? dst->actions : NULL,
1018                    }),
1019                    len > sizeof(*desc) ? sizeof(*desc) : len);
1020         return ret;
1021 }
1022
1023 int
1024 rte_flow_dev_dump(uint16_t port_id, FILE *file, struct rte_flow_error *error)
1025 {
1026         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
1027         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1028         int ret;
1029
1030         if (unlikely(!ops))
1031                 return -rte_errno;
1032         if (likely(!!ops->dev_dump)) {
1033                 fts_enter(dev);
1034                 ret = ops->dev_dump(dev, file, error);
1035                 fts_exit(dev);
1036                 return flow_err(port_id, ret, error);
1037         }
1038         return rte_flow_error_set(error, ENOSYS,
1039                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1040                                   NULL, rte_strerror(ENOSYS));
1041 }
1042
1043 int
1044 rte_flow_get_aged_flows(uint16_t port_id, void **contexts,
1045                     uint32_t nb_contexts, struct rte_flow_error *error)
1046 {
1047         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
1048         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1049         int ret;
1050
1051         if (unlikely(!ops))
1052                 return -rte_errno;
1053         if (likely(!!ops->get_aged_flows)) {
1054                 fts_enter(dev);
1055                 ret = ops->get_aged_flows(dev, contexts, nb_contexts, error);
1056                 fts_exit(dev);
1057                 return flow_err(port_id, ret, error);
1058         }
1059         return rte_flow_error_set(error, ENOTSUP,
1060                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1061                                   NULL, rte_strerror(ENOTSUP));
1062 }
1063
1064 struct rte_flow_shared_action *
1065 rte_flow_shared_action_create(uint16_t port_id,
1066                               const struct rte_flow_shared_action_conf *conf,
1067                               const struct rte_flow_action *action,
1068                               struct rte_flow_error *error)
1069 {
1070         struct rte_flow_shared_action *shared_action;
1071         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1072
1073         if (unlikely(!ops))
1074                 return NULL;
1075         if (unlikely(!ops->shared_action_create)) {
1076                 rte_flow_error_set(error, ENOSYS,
1077                                    RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
1078                                    rte_strerror(ENOSYS));
1079                 return NULL;
1080         }
1081         shared_action = ops->shared_action_create(&rte_eth_devices[port_id],
1082                                                   conf, action, error);
1083         if (shared_action == NULL)
1084                 flow_err(port_id, -rte_errno, error);
1085         return shared_action;
1086 }
1087
1088 int
1089 rte_flow_shared_action_destroy(uint16_t port_id,
1090                               struct rte_flow_shared_action *action,
1091                               struct rte_flow_error *error)
1092 {
1093         int ret;
1094         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1095
1096         if (unlikely(!ops))
1097                 return -rte_errno;
1098         if (unlikely(!ops->shared_action_destroy))
1099                 return rte_flow_error_set(error, ENOSYS,
1100                                           RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1101                                           NULL, rte_strerror(ENOSYS));
1102         ret = ops->shared_action_destroy(&rte_eth_devices[port_id], action,
1103                                          error);
1104         return flow_err(port_id, ret, error);
1105 }
1106
1107 int
1108 rte_flow_shared_action_update(uint16_t port_id,
1109                               struct rte_flow_shared_action *action,
1110                               const struct rte_flow_action *update,
1111                               struct rte_flow_error *error)
1112 {
1113         int ret;
1114         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1115
1116         if (unlikely(!ops))
1117                 return -rte_errno;
1118         if (unlikely(!ops->shared_action_update))
1119                 return rte_flow_error_set(error, ENOSYS,
1120                                           RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1121                                           NULL, rte_strerror(ENOSYS));
1122         ret = ops->shared_action_update(&rte_eth_devices[port_id], action,
1123                                         update, error);
1124         return flow_err(port_id, ret, error);
1125 }
1126
1127 int
1128 rte_flow_shared_action_query(uint16_t port_id,
1129                              const struct rte_flow_shared_action *action,
1130                              void *data,
1131                              struct rte_flow_error *error)
1132 {
1133         int ret;
1134         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1135
1136         if (unlikely(!ops))
1137                 return -rte_errno;
1138         if (unlikely(!ops->shared_action_query))
1139                 return rte_flow_error_set(error, ENOSYS,
1140                                           RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1141                                           NULL, rte_strerror(ENOSYS));
1142         ret = ops->shared_action_query(&rte_eth_devices[port_id], action,
1143                                        data, error);
1144         return flow_err(port_id, ret, error);
1145 }
1146
1147 int
1148 rte_flow_tunnel_decap_set(uint16_t port_id,
1149                           struct rte_flow_tunnel *tunnel,
1150                           struct rte_flow_action **actions,
1151                           uint32_t *num_of_actions,
1152                           struct rte_flow_error *error)
1153 {
1154         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
1155         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1156
1157         if (unlikely(!ops))
1158                 return -rte_errno;
1159         if (likely(!!ops->tunnel_decap_set)) {
1160                 return flow_err(port_id,
1161                                 ops->tunnel_decap_set(dev, tunnel, actions,
1162                                                       num_of_actions, error),
1163                                 error);
1164         }
1165         return rte_flow_error_set(error, ENOTSUP,
1166                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1167                                   NULL, rte_strerror(ENOTSUP));
1168 }
1169
1170 int
1171 rte_flow_tunnel_match(uint16_t port_id,
1172                       struct rte_flow_tunnel *tunnel,
1173                       struct rte_flow_item **items,
1174                       uint32_t *num_of_items,
1175                       struct rte_flow_error *error)
1176 {
1177         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
1178         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1179
1180         if (unlikely(!ops))
1181                 return -rte_errno;
1182         if (likely(!!ops->tunnel_match)) {
1183                 return flow_err(port_id,
1184                                 ops->tunnel_match(dev, tunnel, items,
1185                                                   num_of_items, error),
1186                                 error);
1187         }
1188         return rte_flow_error_set(error, ENOTSUP,
1189                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1190                                   NULL, rte_strerror(ENOTSUP));
1191 }
1192
1193 int
1194 rte_flow_get_restore_info(uint16_t port_id,
1195                           struct rte_mbuf *m,
1196                           struct rte_flow_restore_info *restore_info,
1197                           struct rte_flow_error *error)
1198 {
1199         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
1200         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1201
1202         if (unlikely(!ops))
1203                 return -rte_errno;
1204         if (likely(!!ops->get_restore_info)) {
1205                 return flow_err(port_id,
1206                                 ops->get_restore_info(dev, m, restore_info,
1207                                                       error),
1208                                 error);
1209         }
1210         return rte_flow_error_set(error, ENOTSUP,
1211                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1212                                   NULL, rte_strerror(ENOTSUP));
1213 }
1214
1215 int
1216 rte_flow_tunnel_action_decap_release(uint16_t port_id,
1217                                      struct rte_flow_action *actions,
1218                                      uint32_t num_of_actions,
1219                                      struct rte_flow_error *error)
1220 {
1221         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
1222         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1223
1224         if (unlikely(!ops))
1225                 return -rte_errno;
1226         if (likely(!!ops->tunnel_action_decap_release)) {
1227                 return flow_err(port_id,
1228                                 ops->tunnel_action_decap_release(dev, actions,
1229                                                                  num_of_actions,
1230                                                                  error),
1231                                 error);
1232         }
1233         return rte_flow_error_set(error, ENOTSUP,
1234                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1235                                   NULL, rte_strerror(ENOTSUP));
1236 }
1237
1238 int
1239 rte_flow_tunnel_item_release(uint16_t port_id,
1240                              struct rte_flow_item *items,
1241                              uint32_t num_of_items,
1242                              struct rte_flow_error *error)
1243 {
1244         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
1245         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1246
1247         if (unlikely(!ops))
1248                 return -rte_errno;
1249         if (likely(!!ops->tunnel_item_release)) {
1250                 return flow_err(port_id,
1251                                 ops->tunnel_item_release(dev, items,
1252                                                          num_of_items, error),
1253                                 error);
1254         }
1255         return rte_flow_error_set(error, ENOTSUP,
1256                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1257                                   NULL, rte_strerror(ENOTSUP));
1258 }