lib/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         MK_FLOW_ITEM(GENEVE_OPT, sizeof(struct rte_flow_item_geneve_opt)),
 101 };
 102
 103 /** Generate flow_action[] entry. */
 104 #define MK_FLOW_ACTION(t, s) \
 105         [RTE_FLOW_ACTION_TYPE_ ## t] = { \
 106                 .name = # t, \
 107                 .size = s, \
 108         }
 109
 110 /** Information about known flow actions. */
 111 static const struct rte_flow_desc_data rte_flow_desc_action[] = {
 112         MK_FLOW_ACTION(END, 0),
 113         MK_FLOW_ACTION(VOID, 0),
 114         MK_FLOW_ACTION(PASSTHRU, 0),
 115         MK_FLOW_ACTION(JUMP, sizeof(struct rte_flow_action_jump)),
 116         MK_FLOW_ACTION(MARK, sizeof(struct rte_flow_action_mark)),
 117         MK_FLOW_ACTION(FLAG, 0),
 118         MK_FLOW_ACTION(QUEUE, sizeof(struct rte_flow_action_queue)),
 119         MK_FLOW_ACTION(DROP, 0),
 120         MK_FLOW_ACTION(COUNT, sizeof(struct rte_flow_action_count)),
 121         MK_FLOW_ACTION(RSS, sizeof(struct rte_flow_action_rss)),
 122         MK_FLOW_ACTION(PF, 0),
 123         MK_FLOW_ACTION(VF, sizeof(struct rte_flow_action_vf)),
 124         MK_FLOW_ACTION(PHY_PORT, sizeof(struct rte_flow_action_phy_port)),
 125         MK_FLOW_ACTION(PORT_ID, sizeof(struct rte_flow_action_port_id)),
 126         MK_FLOW_ACTION(METER, sizeof(struct rte_flow_action_meter)),
 127         MK_FLOW_ACTION(SECURITY, sizeof(struct rte_flow_action_security)),
 128         MK_FLOW_ACTION(OF_SET_MPLS_TTL,
 129                        sizeof(struct rte_flow_action_of_set_mpls_ttl)),
 130         MK_FLOW_ACTION(OF_DEC_MPLS_TTL, 0),
 131         MK_FLOW_ACTION(OF_SET_NW_TTL,
 132                        sizeof(struct rte_flow_action_of_set_nw_ttl)),
 133         MK_FLOW_ACTION(OF_DEC_NW_TTL, 0),
 134         MK_FLOW_ACTION(OF_COPY_TTL_OUT, 0),
 135         MK_FLOW_ACTION(OF_COPY_TTL_IN, 0),
 136         MK_FLOW_ACTION(OF_POP_VLAN, 0),
 137         MK_FLOW_ACTION(OF_PUSH_VLAN,
 138                        sizeof(struct rte_flow_action_of_push_vlan)),
 139         MK_FLOW_ACTION(OF_SET_VLAN_VID,
 140                        sizeof(struct rte_flow_action_of_set_vlan_vid)),
 141         MK_FLOW_ACTION(OF_SET_VLAN_PCP,
 142                        sizeof(struct rte_flow_action_of_set_vlan_pcp)),
 143         MK_FLOW_ACTION(OF_POP_MPLS,
 144                        sizeof(struct rte_flow_action_of_pop_mpls)),
 145         MK_FLOW_ACTION(OF_PUSH_MPLS,
 146                        sizeof(struct rte_flow_action_of_push_mpls)),
 147         MK_FLOW_ACTION(VXLAN_ENCAP, sizeof(struct rte_flow_action_vxlan_encap)),
 148         MK_FLOW_ACTION(VXLAN_DECAP, 0),
 149         MK_FLOW_ACTION(NVGRE_ENCAP, sizeof(struct rte_flow_action_vxlan_encap)),
 150         MK_FLOW_ACTION(NVGRE_DECAP, 0),
 151         MK_FLOW_ACTION(RAW_ENCAP, sizeof(struct rte_flow_action_raw_encap)),
 152         MK_FLOW_ACTION(RAW_DECAP, sizeof(struct rte_flow_action_raw_decap)),
 153         MK_FLOW_ACTION(SET_IPV4_SRC,
 154                        sizeof(struct rte_flow_action_set_ipv4)),
 155         MK_FLOW_ACTION(SET_IPV4_DST,
 156                        sizeof(struct rte_flow_action_set_ipv4)),
 157         MK_FLOW_ACTION(SET_IPV6_SRC,
 158                        sizeof(struct rte_flow_action_set_ipv6)),
 159         MK_FLOW_ACTION(SET_IPV6_DST,
 160                        sizeof(struct rte_flow_action_set_ipv6)),
 161         MK_FLOW_ACTION(SET_TP_SRC,
 162                        sizeof(struct rte_flow_action_set_tp)),
 163         MK_FLOW_ACTION(SET_TP_DST,
 164                        sizeof(struct rte_flow_action_set_tp)),
 165         MK_FLOW_ACTION(MAC_SWAP, 0),
 166         MK_FLOW_ACTION(DEC_TTL, 0),
 167         MK_FLOW_ACTION(SET_TTL, sizeof(struct rte_flow_action_set_ttl)),
 168         MK_FLOW_ACTION(SET_MAC_SRC, sizeof(struct rte_flow_action_set_mac)),
 169         MK_FLOW_ACTION(SET_MAC_DST, sizeof(struct rte_flow_action_set_mac)),
 170         MK_FLOW_ACTION(INC_TCP_SEQ, sizeof(rte_be32_t)),
 171         MK_FLOW_ACTION(DEC_TCP_SEQ, sizeof(rte_be32_t)),
 172         MK_FLOW_ACTION(INC_TCP_ACK, sizeof(rte_be32_t)),
 173         MK_FLOW_ACTION(DEC_TCP_ACK, sizeof(rte_be32_t)),
 174         MK_FLOW_ACTION(SET_TAG, sizeof(struct rte_flow_action_set_tag)),
 175         MK_FLOW_ACTION(SET_META, sizeof(struct rte_flow_action_set_meta)),
 176         MK_FLOW_ACTION(SET_IPV4_DSCP, sizeof(struct rte_flow_action_set_dscp)),
 177         MK_FLOW_ACTION(SET_IPV6_DSCP, sizeof(struct rte_flow_action_set_dscp)),
 178         MK_FLOW_ACTION(AGE, sizeof(struct rte_flow_action_age)),
 179         MK_FLOW_ACTION(SAMPLE, sizeof(struct rte_flow_action_sample)),
 180         MK_FLOW_ACTION(MODIFY_FIELD,
 181                        sizeof(struct rte_flow_action_modify_field)),
 182         /**
 183          * Shared action represented as handle of type
 184          * (struct rte_flow_shared action *) stored in conf field (see
 185          * struct rte_flow_action); no need for additional structure to * store
 186          * shared action handle.
 187          */
 188         MK_FLOW_ACTION(SHARED, 0),
 189 };
 190
 191 int
 192 rte_flow_dynf_metadata_register(void)
 193 {
 194         int offset;
 195         int flag;
 196
 197         static const struct rte_mbuf_dynfield desc_offs = {
 198                 .name = RTE_MBUF_DYNFIELD_METADATA_NAME,
 199                 .size = sizeof(uint32_t),
 200                 .align = __alignof__(uint32_t),
 201         };
 202         static const struct rte_mbuf_dynflag desc_flag = {
 203                 .name = RTE_MBUF_DYNFLAG_METADATA_NAME,
 204         };
 205
 206         offset = rte_mbuf_dynfield_register(&desc_offs);
 207         if (offset < 0)
 208                 goto error;
 209         flag = rte_mbuf_dynflag_register(&desc_flag);
 210         if (flag < 0)
 211                 goto error;
 212         rte_flow_dynf_metadata_offs = offset;
 213         rte_flow_dynf_metadata_mask = (1ULL << flag);
 214         return 0;
 215
 216 error:
 217         rte_flow_dynf_metadata_offs = -1;
 218         rte_flow_dynf_metadata_mask = 0ULL;
 219         return -rte_errno;
 220 }
 221
 222 static inline void
 223 fts_enter(struct rte_eth_dev *dev)
 224 {
 225         if (!(dev->data->dev_flags & RTE_ETH_DEV_FLOW_OPS_THREAD_SAFE))
 226                 pthread_mutex_lock(&dev->data->flow_ops_mutex);
 227 }
 228
 229 static inline void
 230 fts_exit(struct rte_eth_dev *dev)
 231 {
 232         if (!(dev->data->dev_flags & RTE_ETH_DEV_FLOW_OPS_THREAD_SAFE))
 233                 pthread_mutex_unlock(&dev->data->flow_ops_mutex);
 234 }
 235
 236 static int
 237 flow_err(uint16_t port_id, int ret, struct rte_flow_error *error)
 238 {
 239         if (ret == 0)
 240                 return 0;
 241         if (rte_eth_dev_is_removed(port_id))
 242                 return rte_flow_error_set(error, EIO,
 243                                           RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 244                                           NULL, rte_strerror(EIO));
 245         return ret;
 246 }
 247
 248 /* Get generic flow operations structure from a port. */
 249 const struct rte_flow_ops *
 250 rte_flow_ops_get(uint16_t port_id, struct rte_flow_error *error)
 251 {
 252         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
 253         const struct rte_flow_ops *ops;
 254         int code;
 255
 256         if (unlikely(!rte_eth_dev_is_valid_port(port_id)))
 257                 code = ENODEV;
 258         else if (unlikely(dev->dev_ops->flow_ops_get == NULL))
 259                 /* flow API not supported with this driver dev_ops */
 260                 code = ENOSYS;
 261         else
 262                 code = dev->dev_ops->flow_ops_get(dev, &ops);
 263         if (code == 0 && ops == NULL)
 264                 /* flow API not supported with this device */
 265                 code = ENOSYS;
 266
 267         if (code != 0) {
 268                 rte_flow_error_set(error, code, RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 269                                    NULL, rte_strerror(code));
 270                 return NULL;
 271         }
 272         return ops;
 273 }
 274
 275 /* Check whether a flow rule can be created on a given port. */
 276 int
 277 rte_flow_validate(uint16_t port_id,
 278                   const struct rte_flow_attr *attr,
 279                   const struct rte_flow_item pattern[],
 280                   const struct rte_flow_action actions[],
 281                   struct rte_flow_error *error)
 282 {
 283         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
 284         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
 285         int ret;
 286
 287         if (unlikely(!ops))
 288                 return -rte_errno;
 289         if (likely(!!ops->validate)) {
 290                 fts_enter(dev);
 291                 ret = ops->validate(dev, attr, pattern, actions, error);
 292                 fts_exit(dev);
 293                 return flow_err(port_id, ret, error);
 294         }
 295         return rte_flow_error_set(error, ENOSYS,
 296                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 297                                   NULL, rte_strerror(ENOSYS));
 298 }
 299
 300 /* Create a flow rule on a given port. */
 301 struct rte_flow *
 302 rte_flow_create(uint16_t port_id,
 303                 const struct rte_flow_attr *attr,
 304                 const struct rte_flow_item pattern[],
 305                 const struct rte_flow_action actions[],
 306                 struct rte_flow_error *error)
 307 {
 308         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
 309         struct rte_flow *flow;
 310         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
 311
 312         if (unlikely(!ops))
 313                 return NULL;
 314         if (likely(!!ops->create)) {
 315                 fts_enter(dev);
 316                 flow = ops->create(dev, attr, pattern, actions, error);
 317                 fts_exit(dev);
 318                 if (flow == NULL)
 319                         flow_err(port_id, -rte_errno, error);
 320                 return flow;
 321         }
 322         rte_flow_error_set(error, ENOSYS, RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 323                            NULL, rte_strerror(ENOSYS));
 324         return NULL;
 325 }
 326
 327 /* Destroy a flow rule on a given port. */
 328 int
 329 rte_flow_destroy(uint16_t port_id,
 330                  struct rte_flow *flow,
 331                  struct rte_flow_error *error)
 332 {
 333         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
 334         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
 335         int ret;
 336
 337         if (unlikely(!ops))
 338                 return -rte_errno;
 339         if (likely(!!ops->destroy)) {
 340                 fts_enter(dev);
 341                 ret = ops->destroy(dev, flow, error);
 342                 fts_exit(dev);
 343                 return flow_err(port_id, ret, error);
 344         }
 345         return rte_flow_error_set(error, ENOSYS,
 346                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 347                                   NULL, rte_strerror(ENOSYS));
 348 }
 349
 350 /* Destroy all flow rules associated with a port. */
 351 int
 352 rte_flow_flush(uint16_t port_id,
 353                struct rte_flow_error *error)
 354 {
 355         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
 356         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
 357         int ret;
 358
 359         if (unlikely(!ops))
 360                 return -rte_errno;
 361         if (likely(!!ops->flush)) {
 362                 fts_enter(dev);
 363                 ret = ops->flush(dev, error);
 364                 fts_exit(dev);
 365                 return flow_err(port_id, ret, error);
 366         }
 367         return rte_flow_error_set(error, ENOSYS,
 368                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 369                                   NULL, rte_strerror(ENOSYS));
 370 }
 371
 372 /* Query an existing flow rule. */
 373 int
 374 rte_flow_query(uint16_t port_id,
 375                struct rte_flow *flow,
 376                const struct rte_flow_action *action,
 377                void *data,
 378                struct rte_flow_error *error)
 379 {
 380         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
 381         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
 382         int ret;
 383
 384         if (!ops)
 385                 return -rte_errno;
 386         if (likely(!!ops->query)) {
 387                 fts_enter(dev);
 388                 ret = ops->query(dev, flow, action, data, error);
 389                 fts_exit(dev);
 390                 return flow_err(port_id, ret, error);
 391         }
 392         return rte_flow_error_set(error, ENOSYS,
 393                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 394                                   NULL, rte_strerror(ENOSYS));
 395 }
 396
 397 /* Restrict ingress traffic to the defined flow rules. */
 398 int
 399 rte_flow_isolate(uint16_t port_id,
 400                  int set,
 401                  struct rte_flow_error *error)
 402 {
 403         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
 404         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
 405         int ret;
 406
 407         if (!ops)
 408                 return -rte_errno;
 409         if (likely(!!ops->isolate)) {
 410                 fts_enter(dev);
 411                 ret = ops->isolate(dev, set, error);
 412                 fts_exit(dev);
 413                 return flow_err(port_id, ret, error);
 414         }
 415         return rte_flow_error_set(error, ENOSYS,
 416                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 417                                   NULL, rte_strerror(ENOSYS));
 418 }
 419
 420 /* Initialize flow error structure. */
 421 int
 422 rte_flow_error_set(struct rte_flow_error *error,
 423                    int code,
 424                    enum rte_flow_error_type type,
 425                    const void *cause,
 426                    const char *message)
 427 {
 428         if (error) {
 429                 *error = (struct rte_flow_error){
 430                         .type = type,
 431                         .cause = cause,
 432                         .message = message,
 433                 };
 434         }
 435         rte_errno = code;
 436         return -code;
 437 }
 438
 439 /** Pattern item specification types. */
 440 enum rte_flow_conv_item_spec_type {
 441         RTE_FLOW_CONV_ITEM_SPEC,
 442         RTE_FLOW_CONV_ITEM_LAST,
 443         RTE_FLOW_CONV_ITEM_MASK,
 444 };
 445
 446 /**
 447  * Copy pattern item specification.
 448  *
 449  * @param[out] buf
 450  *   Output buffer. Can be NULL if @p size is zero.
 451  * @param size
 452  *   Size of @p buf in bytes.
 453  * @param[in] item
 454  *   Pattern item to copy specification from.
 455  * @param type
 456  *   Specification selector for either @p spec, @p last or @p mask.
 457  *
 458  * @return
 459  *   Number of bytes needed to store pattern item specification regardless
 460  *   of @p size. @p buf contents are truncated to @p size if not large
 461  *   enough.
 462  */
 463 static size_t
 464 rte_flow_conv_item_spec(void *buf, const size_t size,
 465                         const struct rte_flow_item *item,
 466                         enum rte_flow_conv_item_spec_type type)
 467 {
 468         size_t off;
 469         const void *data =
 470                 type == RTE_FLOW_CONV_ITEM_SPEC ? item->spec :
 471                 type == RTE_FLOW_CONV_ITEM_LAST ? item->last :
 472                 type == RTE_FLOW_CONV_ITEM_MASK ? item->mask :
 473                 NULL;
 474
 475         switch (item->type) {
 476                 union {
 477                         const struct rte_flow_item_raw *raw;
 478                 } spec;
 479                 union {
 480                         const struct rte_flow_item_raw *raw;
 481                 } last;
 482                 union {
 483                         const struct rte_flow_item_raw *raw;
 484                 } mask;
 485                 union {
 486                         const struct rte_flow_item_raw *raw;
 487                 } src;
 488                 union {
 489                         struct rte_flow_item_raw *raw;
 490                 } dst;
 491                 size_t tmp;
 492
 493         case RTE_FLOW_ITEM_TYPE_RAW:
 494                 spec.raw = item->spec;
 495                 last.raw = item->last ? item->last : item->spec;
 496                 mask.raw = item->mask ? item->mask : &rte_flow_item_raw_mask;
 497                 src.raw = data;
 498                 dst.raw = buf;
 499                 rte_memcpy(dst.raw,
 500                            (&(struct rte_flow_item_raw){
 501                                 .relative = src.raw->relative,
 502                                 .search = src.raw->search,
 503                                 .reserved = src.raw->reserved,
 504                                 .offset = src.raw->offset,
 505                                 .limit = src.raw->limit,
 506                                 .length = src.raw->length,
 507                            }),
 508                            size > sizeof(*dst.raw) ? sizeof(*dst.raw) : size);
 509                 off = sizeof(*dst.raw);
 510                 if (type == RTE_FLOW_CONV_ITEM_SPEC ||
 511                     (type == RTE_FLOW_CONV_ITEM_MASK &&
 512                      ((spec.raw->length & mask.raw->length) >=
 513                       (last.raw->length & mask.raw->length))))
 514                         tmp = spec.raw->length & mask.raw->length;
 515                 else
 516                         tmp = last.raw->length & mask.raw->length;
 517                 if (tmp) {
 518                         off = RTE_ALIGN_CEIL(off, sizeof(*dst.raw->pattern));
 519                         if (size >= off + tmp)
 520                                 dst.raw->pattern = rte_memcpy
 521                                         ((void *)((uintptr_t)dst.raw + off),
 522                                          src.raw->pattern, tmp);
 523                         off += tmp;
 524                 }
 525                 break;
 526         default:
 527                 /**
 528                  * allow PMD private flow item
 529                  */
 530                 off = (int)item->type >= 0 ?
 531                       rte_flow_desc_item[item->type].size : sizeof(void *);
 532                 rte_memcpy(buf, data, (size > off ? off : size));
 533                 break;
 534         }
 535         return off;
 536 }
 537
 538 /**
 539  * Copy action configuration.
 540  *
 541  * @param[out] buf
 542  *   Output buffer. Can be NULL if @p size is zero.
 543  * @param size
 544  *   Size of @p buf in bytes.
 545  * @param[in] action
 546  *   Action to copy configuration from.
 547  *
 548  * @return
 549  *   Number of bytes needed to store pattern item specification regardless
 550  *   of @p size. @p buf contents are truncated to @p size if not large
 551  *   enough.
 552  */
 553 static size_t
 554 rte_flow_conv_action_conf(void *buf, const size_t size,
 555                           const struct rte_flow_action *action)
 556 {
 557         size_t off;
 558
 559         switch (action->type) {
 560                 union {
 561                         const struct rte_flow_action_rss *rss;
 562                         const struct rte_flow_action_vxlan_encap *vxlan_encap;
 563                         const struct rte_flow_action_nvgre_encap *nvgre_encap;
 564                 } src;
 565                 union {
 566                         struct rte_flow_action_rss *rss;
 567                         struct rte_flow_action_vxlan_encap *vxlan_encap;
 568                         struct rte_flow_action_nvgre_encap *nvgre_encap;
 569                 } dst;
 570                 size_t tmp;
 571                 int ret;
 572
 573         case RTE_FLOW_ACTION_TYPE_RSS:
 574                 src.rss = action->conf;
 575                 dst.rss = buf;
 576                 rte_memcpy(dst.rss,
 577                            (&(struct rte_flow_action_rss){
 578                                 .func = src.rss->func,
 579                                 .level = src.rss->level,
 580                                 .types = src.rss->types,
 581                                 .key_len = src.rss->key_len,
 582                                 .queue_num = src.rss->queue_num,
 583                            }),
 584                            size > sizeof(*dst.rss) ? sizeof(*dst.rss) : size);
 585                 off = sizeof(*dst.rss);
 586                 if (src.rss->key_len && src.rss->key) {
 587                         off = RTE_ALIGN_CEIL(off, sizeof(*dst.rss->key));
 588                         tmp = sizeof(*src.rss->key) * src.rss->key_len;
 589                         if (size >= off + tmp)
 590                                 dst.rss->key = rte_memcpy
 591                                         ((void *)((uintptr_t)dst.rss + off),
 592                                          src.rss->key, tmp);
 593                         off += tmp;
 594                 }
 595                 if (src.rss->queue_num) {
 596                         off = RTE_ALIGN_CEIL(off, sizeof(*dst.rss->queue));
 597                         tmp = sizeof(*src.rss->queue) * src.rss->queue_num;
 598                         if (size >= off + tmp)
 599                                 dst.rss->queue = rte_memcpy
 600                                         ((void *)((uintptr_t)dst.rss + off),
 601                                          src.rss->queue, tmp);
 602                         off += tmp;
 603                 }
 604                 break;
 605         case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
 606         case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP:
 607                 src.vxlan_encap = action->conf;
 608                 dst.vxlan_encap = buf;
 609                 RTE_BUILD_BUG_ON(sizeof(*src.vxlan_encap) !=
 610                                  sizeof(*src.nvgre_encap) ||
 611                                  offsetof(struct rte_flow_action_vxlan_encap,
 612                                           definition) !=
 613                                  offsetof(struct rte_flow_action_nvgre_encap,
 614                                           definition));
 615                 off = sizeof(*dst.vxlan_encap);
 616                 if (src.vxlan_encap->definition) {
 617                         off = RTE_ALIGN_CEIL
 618                                 (off, sizeof(*dst.vxlan_encap->definition));
 619                         ret = rte_flow_conv
 620                                 (RTE_FLOW_CONV_OP_PATTERN,
 621                                  (void *)((uintptr_t)dst.vxlan_encap + off),
 622                                  size > off ? size - off : 0,
 623                                  src.vxlan_encap->definition, NULL);
 624                         if (ret < 0)
 625                                 return 0;
 626                         if (size >= off + ret)
 627                                 dst.vxlan_encap->definition =
 628                                         (void *)((uintptr_t)dst.vxlan_encap +
 629                                                  off);
 630                         off += ret;
 631                 }
 632                 break;
 633         default:
 634                 /**
 635                  * allow PMD private flow action
 636                  */
 637                 off = (int)action->type >= 0 ?
 638                       rte_flow_desc_action[action->type].size : sizeof(void *);
 639                 rte_memcpy(buf, action->conf, (size > off ? off : size));
 640                 break;
 641         }
 642         return off;
 643 }
 644
 645 /**
 646  * Copy a list of pattern items.
 647  *
 648  * @param[out] dst
 649  *   Destination buffer. Can be NULL if @p size is zero.
 650  * @param size
 651  *   Size of @p dst in bytes.
 652  * @param[in] src
 653  *   Source pattern items.
 654  * @param num
 655  *   Maximum number of pattern items to process from @p src or 0 to process
 656  *   the entire list. In both cases, processing stops after
 657  *   RTE_FLOW_ITEM_TYPE_END is encountered.
 658  * @param[out] error
 659  *   Perform verbose error reporting if not NULL.
 660  *
 661  * @return
 662  *   A positive value representing the number of bytes needed to store
 663  *   pattern items regardless of @p size on success (@p buf contents are
 664  *   truncated to @p size if not large enough), a negative errno value
 665  *   otherwise and rte_errno is set.
 666  */
 667 static int
 668 rte_flow_conv_pattern(struct rte_flow_item *dst,
 669                       const size_t size,
 670                       const struct rte_flow_item *src,
 671                       unsigned int num,
 672                       struct rte_flow_error *error)
 673 {
 674         uintptr_t data = (uintptr_t)dst;
 675         size_t off;
 676         size_t ret;
 677         unsigned int i;
 678
 679         for (i = 0, off = 0; !num || i != num; ++i, ++src, ++dst) {
 680                 /**
 681                  * allow PMD private flow item
 682                  */
 683                 if (((int)src->type >= 0) &&
 684                         ((size_t)src->type >= RTE_DIM(rte_flow_desc_item) ||
 685                     !rte_flow_desc_item[src->type].name))
 686                         return rte_flow_error_set
 687                                 (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, src,
 688                                  "cannot convert unknown item type");
 689                 if (size >= off + sizeof(*dst))
 690                         *dst = (struct rte_flow_item){
 691                                 .type = src->type,
 692                         };
 693                 off += sizeof(*dst);
 694                 if (!src->type)
 695                         num = i + 1;
 696         }
 697         num = i;
 698         src -= num;
 699         dst -= num;
 700         do {
 701                 if (src->spec) {
 702                         off = RTE_ALIGN_CEIL(off, sizeof(double));
 703                         ret = rte_flow_conv_item_spec
 704                                 ((void *)(data + off),
 705                                  size > off ? size - off : 0, src,
 706                                  RTE_FLOW_CONV_ITEM_SPEC);
 707                         if (size && size >= off + ret)
 708                                 dst->spec = (void *)(data + off);
 709                         off += ret;
 710
 711                 }
 712                 if (src->last) {
 713                         off = RTE_ALIGN_CEIL(off, sizeof(double));
 714                         ret = rte_flow_conv_item_spec
 715                                 ((void *)(data + off),
 716                                  size > off ? size - off : 0, src,
 717                                  RTE_FLOW_CONV_ITEM_LAST);
 718                         if (size && size >= off + ret)
 719                                 dst->last = (void *)(data + off);
 720                         off += ret;
 721                 }
 722                 if (src->mask) {
 723                         off = RTE_ALIGN_CEIL(off, sizeof(double));
 724                         ret = rte_flow_conv_item_spec
 725                                 ((void *)(data + off),
 726                                  size > off ? size - off : 0, src,
 727                                  RTE_FLOW_CONV_ITEM_MASK);
 728                         if (size && size >= off + ret)
 729                                 dst->mask = (void *)(data + off);
 730                         off += ret;
 731                 }
 732                 ++src;
 733                 ++dst;
 734         } while (--num);
 735         return off;
 736 }
 737
 738 /**
 739  * Copy a list of actions.
 740  *
 741  * @param[out] dst
 742  *   Destination buffer. Can be NULL if @p size is zero.
 743  * @param size
 744  *   Size of @p dst in bytes.
 745  * @param[in] src
 746  *   Source actions.
 747  * @param num
 748  *   Maximum number of actions to process from @p src or 0 to process the
 749  *   entire list. In both cases, processing stops after
 750  *   RTE_FLOW_ACTION_TYPE_END is encountered.
 751  * @param[out] error
 752  *   Perform verbose error reporting if not NULL.
 753  *
 754  * @return
 755  *   A positive value representing the number of bytes needed to store
 756  *   actions regardless of @p size on success (@p buf contents are truncated
 757  *   to @p size if not large enough), a negative errno value otherwise and
 758  *   rte_errno is set.
 759  */
 760 static int
 761 rte_flow_conv_actions(struct rte_flow_action *dst,
 762                       const size_t size,
 763                       const struct rte_flow_action *src,
 764                       unsigned int num,
 765                       struct rte_flow_error *error)
 766 {
 767         uintptr_t data = (uintptr_t)dst;
 768         size_t off;
 769         size_t ret;
 770         unsigned int i;
 771
 772         for (i = 0, off = 0; !num || i != num; ++i, ++src, ++dst) {
 773                 /**
 774                  * allow PMD private flow action
 775                  */
 776                 if (((int)src->type >= 0) &&
 777                     ((size_t)src->type >= RTE_DIM(rte_flow_desc_action) ||
 778                     !rte_flow_desc_action[src->type].name))
 779                         return rte_flow_error_set
 780                                 (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION,
 781                                  src, "cannot convert unknown action type");
 782                 if (size >= off + sizeof(*dst))
 783                         *dst = (struct rte_flow_action){
 784                                 .type = src->type,
 785                         };
 786                 off += sizeof(*dst);
 787                 if (!src->type)
 788                         num = i + 1;
 789         }
 790         num = i;
 791         src -= num;
 792         dst -= num;
 793         do {
 794                 if (src->conf) {
 795                         off = RTE_ALIGN_CEIL(off, sizeof(double));
 796                         ret = rte_flow_conv_action_conf
 797                                 ((void *)(data + off),
 798                                  size > off ? size - off : 0, src);
 799                         if (size && size >= off + ret)
 800                                 dst->conf = (void *)(data + off);
 801                         off += ret;
 802                 }
 803                 ++src;
 804                 ++dst;
 805         } while (--num);
 806         return off;
 807 }
 808
 809 /**
 810  * Copy flow rule components.
 811  *
 812  * This comprises the flow rule descriptor itself, attributes, pattern and
 813  * actions list. NULL components in @p src are skipped.
 814  *
 815  * @param[out] dst
 816  *   Destination buffer. Can be NULL if @p size is zero.
 817  * @param size
 818  *   Size of @p dst in bytes.
 819  * @param[in] src
 820  *   Source flow rule descriptor.
 821  * @param[out] error
 822  *   Perform verbose error reporting if not NULL.
 823  *
 824  * @return
 825  *   A positive value representing the number of bytes needed to store all
 826  *   components including the descriptor regardless of @p size on success
 827  *   (@p buf contents are truncated to @p size if not large enough), a
 828  *   negative errno value otherwise and rte_errno is set.
 829  */
 830 static int
 831 rte_flow_conv_rule(struct rte_flow_conv_rule *dst,
 832                    const size_t size,
 833                    const struct rte_flow_conv_rule *src,
 834                    struct rte_flow_error *error)
 835 {
 836         size_t off;
 837         int ret;
 838
 839         rte_memcpy(dst,
 840                    (&(struct rte_flow_conv_rule){
 841                         .attr = NULL,
 842                         .pattern = NULL,
 843                         .actions = NULL,
 844                    }),
 845                    size > sizeof(*dst) ? sizeof(*dst) : size);
 846         off = sizeof(*dst);
 847         if (src->attr_ro) {
 848                 off = RTE_ALIGN_CEIL(off, sizeof(double));
 849                 if (size && size >= off + sizeof(*dst->attr))
 850                         dst->attr = rte_memcpy
 851                                 ((void *)((uintptr_t)dst + off),
 852                                  src->attr_ro, sizeof(*dst->attr));
 853                 off += sizeof(*dst->attr);
 854         }
 855         if (src->pattern_ro) {
 856                 off = RTE_ALIGN_CEIL(off, sizeof(double));
 857                 ret = rte_flow_conv_pattern((void *)((uintptr_t)dst + off),
 858                                             size > off ? size - off : 0,
 859                                             src->pattern_ro, 0, error);
 860                 if (ret < 0)
 861                         return ret;
 862                 if (size && size >= off + (size_t)ret)
 863                         dst->pattern = (void *)((uintptr_t)dst + off);
 864                 off += ret;
 865         }
 866         if (src->actions_ro) {
 867                 off = RTE_ALIGN_CEIL(off, sizeof(double));
 868                 ret = rte_flow_conv_actions((void *)((uintptr_t)dst + off),
 869                                             size > off ? size - off : 0,
 870                                             src->actions_ro, 0, error);
 871                 if (ret < 0)
 872                         return ret;
 873                 if (size >= off + (size_t)ret)
 874                         dst->actions = (void *)((uintptr_t)dst + off);
 875                 off += ret;
 876         }
 877         return off;
 878 }
 879
 880 /**
 881  * Retrieve the name of a pattern item/action type.
 882  *
 883  * @param is_action
 884  *   Nonzero when @p src represents an action type instead of a pattern item
 885  *   type.
 886  * @param is_ptr
 887  *   Nonzero to write string address instead of contents into @p dst.
 888  * @param[out] dst
 889  *   Destination buffer. Can be NULL if @p size is zero.
 890  * @param size
 891  *   Size of @p dst in bytes.
 892  * @param[in] src
 893  *   Depending on @p is_action, source pattern item or action type cast as a
 894  *   pointer.
 895  * @param[out] error
 896  *   Perform verbose error reporting if not NULL.
 897  *
 898  * @return
 899  *   A positive value representing the number of bytes needed to store the
 900  *   name or its address regardless of @p size on success (@p buf contents
 901  *   are truncated to @p size if not large enough), a negative errno value
 902  *   otherwise and rte_errno is set.
 903  */
 904 static int
 905 rte_flow_conv_name(int is_action,
 906                    int is_ptr,
 907                    char *dst,
 908                    const size_t size,
 909                    const void *src,
 910                    struct rte_flow_error *error)
 911 {
 912         struct desc_info {
 913                 const struct rte_flow_desc_data *data;
 914                 size_t num;
 915         };
 916         static const struct desc_info info_rep[2] = {
 917                 { rte_flow_desc_item, RTE_DIM(rte_flow_desc_item), },
 918                 { rte_flow_desc_action, RTE_DIM(rte_flow_desc_action), },
 919         };
 920         const struct desc_info *const info = &info_rep[!!is_action];
 921         unsigned int type = (uintptr_t)src;
 922
 923         if (type >= info->num)
 924                 return rte_flow_error_set
 925                         (error, EINVAL, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
 926                          "unknown object type to retrieve the name of");
 927         if (!is_ptr)
 928                 return strlcpy(dst, info->data[type].name, size);
 929         if (size >= sizeof(const char **))
 930                 *((const char **)dst) = info->data[type].name;
 931         return sizeof(const char **);
 932 }
 933
 934 /** Helper function to convert flow API objects. */
 935 int
 936 rte_flow_conv(enum rte_flow_conv_op op,
 937               void *dst,
 938               size_t size,
 939               const void *src,
 940               struct rte_flow_error *error)
 941 {
 942         switch (op) {
 943                 const struct rte_flow_attr *attr;
 944
 945         case RTE_FLOW_CONV_OP_NONE:
 946                 return 0;
 947         case RTE_FLOW_CONV_OP_ATTR:
 948                 attr = src;
 949                 if (size > sizeof(*attr))
 950                         size = sizeof(*attr);
 951                 rte_memcpy(dst, attr, size);
 952                 return sizeof(*attr);
 953         case RTE_FLOW_CONV_OP_ITEM:
 954                 return rte_flow_conv_pattern(dst, size, src, 1, error);
 955         case RTE_FLOW_CONV_OP_ACTION:
 956                 return rte_flow_conv_actions(dst, size, src, 1, error);
 957         case RTE_FLOW_CONV_OP_PATTERN:
 958                 return rte_flow_conv_pattern(dst, size, src, 0, error);
 959         case RTE_FLOW_CONV_OP_ACTIONS:
 960                 return rte_flow_conv_actions(dst, size, src, 0, error);
 961         case RTE_FLOW_CONV_OP_RULE:
 962                 return rte_flow_conv_rule(dst, size, src, error);
 963         case RTE_FLOW_CONV_OP_ITEM_NAME:
 964                 return rte_flow_conv_name(0, 0, dst, size, src, error);
 965         case RTE_FLOW_CONV_OP_ACTION_NAME:
 966                 return rte_flow_conv_name(1, 0, dst, size, src, error);
 967         case RTE_FLOW_CONV_OP_ITEM_NAME_PTR:
 968                 return rte_flow_conv_name(0, 1, dst, size, src, error);
 969         case RTE_FLOW_CONV_OP_ACTION_NAME_PTR:
 970                 return rte_flow_conv_name(1, 1, dst, size, src, error);
 971         }
 972         return rte_flow_error_set
 973                 (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
 974                  "unknown object conversion operation");
 975 }
 976
 977 /** Store a full rte_flow description. */
 978 size_t
 979 rte_flow_copy(struct rte_flow_desc *desc, size_t len,
 980               const struct rte_flow_attr *attr,
 981               const struct rte_flow_item *items,
 982               const struct rte_flow_action *actions)
 983 {
 984         /*
 985          * Overlap struct rte_flow_conv with struct rte_flow_desc in order
 986          * to convert the former to the latter without wasting space.
 987          */
 988         struct rte_flow_conv_rule *dst =
 989                 len ?
 990                 (void *)((uintptr_t)desc +
 991                          (offsetof(struct rte_flow_desc, actions) -
 992                           offsetof(struct rte_flow_conv_rule, actions))) :
 993                 NULL;
 994         size_t dst_size =
 995                 len > sizeof(*desc) - sizeof(*dst) ?
 996                 len - (sizeof(*desc) - sizeof(*dst)) :
 997                 0;
 998         struct rte_flow_conv_rule src = {
 999                 .attr_ro = NULL,
1000                 .pattern_ro = items,
1001                 .actions_ro = actions,
1002         };
1003         int ret;
1004
1005         RTE_BUILD_BUG_ON(sizeof(struct rte_flow_desc) <
1006                          sizeof(struct rte_flow_conv_rule));
1007         if (dst_size &&
1008             (&dst->pattern != &desc->items ||
1009              &dst->actions != &desc->actions ||
1010              (uintptr_t)(dst + 1) != (uintptr_t)(desc + 1))) {
1011                 rte_errno = EINVAL;
1012                 return 0;
1013         }
1014         ret = rte_flow_conv(RTE_FLOW_CONV_OP_RULE, dst, dst_size, &src, NULL);
1015         if (ret < 0)
1016                 return 0;
1017         ret += sizeof(*desc) - sizeof(*dst);
1018         rte_memcpy(desc,
1019                    (&(struct rte_flow_desc){
1020                         .size = ret,
1021                         .attr = *attr,
1022                         .items = dst_size ? dst->pattern : NULL,
1023                         .actions = dst_size ? dst->actions : NULL,
1024                    }),
1025                    len > sizeof(*desc) ? sizeof(*desc) : len);
1026         return ret;
1027 }
1028
1029 int
1030 rte_flow_dev_dump(uint16_t port_id, struct rte_flow *flow,
1031                         FILE *file, struct rte_flow_error *error)
1032 {
1033         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
1034         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1035         int ret;
1036
1037         if (unlikely(!ops))
1038                 return -rte_errno;
1039         if (likely(!!ops->dev_dump)) {
1040                 fts_enter(dev);
1041                 ret = ops->dev_dump(dev, flow, file, error);
1042                 fts_exit(dev);
1043                 return flow_err(port_id, ret, error);
1044         }
1045         return rte_flow_error_set(error, ENOSYS,
1046                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1047                                   NULL, rte_strerror(ENOSYS));
1048 }
1049
1050 int
1051 rte_flow_get_aged_flows(uint16_t port_id, void **contexts,
1052                     uint32_t nb_contexts, struct rte_flow_error *error)
1053 {
1054         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
1055         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1056         int ret;
1057
1058         if (unlikely(!ops))
1059                 return -rte_errno;
1060         if (likely(!!ops->get_aged_flows)) {
1061                 fts_enter(dev);
1062                 ret = ops->get_aged_flows(dev, contexts, nb_contexts, error);
1063                 fts_exit(dev);
1064                 return flow_err(port_id, ret, error);
1065         }
1066         return rte_flow_error_set(error, ENOTSUP,
1067                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1068                                   NULL, rte_strerror(ENOTSUP));
1069 }
1070
1071 struct rte_flow_shared_action *
1072 rte_flow_shared_action_create(uint16_t port_id,
1073                               const struct rte_flow_shared_action_conf *conf,
1074                               const struct rte_flow_action *action,
1075                               struct rte_flow_error *error)
1076 {
1077         struct rte_flow_shared_action *shared_action;
1078         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1079
1080         if (unlikely(!ops))
1081                 return NULL;
1082         if (unlikely(!ops->shared_action_create)) {
1083                 rte_flow_error_set(error, ENOSYS,
1084                                    RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
1085                                    rte_strerror(ENOSYS));
1086                 return NULL;
1087         }
1088         shared_action = ops->shared_action_create(&rte_eth_devices[port_id],
1089                                                   conf, action, error);
1090         if (shared_action == NULL)
1091                 flow_err(port_id, -rte_errno, error);
1092         return shared_action;
1093 }
1094
1095 int
1096 rte_flow_shared_action_destroy(uint16_t port_id,
1097                               struct rte_flow_shared_action *action,
1098                               struct rte_flow_error *error)
1099 {
1100         int ret;
1101         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1102
1103         if (unlikely(!ops))
1104                 return -rte_errno;
1105         if (unlikely(!ops->shared_action_destroy))
1106                 return rte_flow_error_set(error, ENOSYS,
1107                                           RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1108                                           NULL, rte_strerror(ENOSYS));
1109         ret = ops->shared_action_destroy(&rte_eth_devices[port_id], action,
1110                                          error);
1111         return flow_err(port_id, ret, error);
1112 }
1113
1114 int
1115 rte_flow_shared_action_update(uint16_t port_id,
1116                               struct rte_flow_shared_action *action,
1117                               const struct rte_flow_action *update,
1118                               struct rte_flow_error *error)
1119 {
1120         int ret;
1121         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1122
1123         if (unlikely(!ops))
1124                 return -rte_errno;
1125         if (unlikely(!ops->shared_action_update))
1126                 return rte_flow_error_set(error, ENOSYS,
1127                                           RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1128                                           NULL, rte_strerror(ENOSYS));
1129         ret = ops->shared_action_update(&rte_eth_devices[port_id], action,
1130                                         update, error);
1131         return flow_err(port_id, ret, error);
1132 }
1133
1134 int
1135 rte_flow_shared_action_query(uint16_t port_id,
1136                              const struct rte_flow_shared_action *action,
1137                              void *data,
1138                              struct rte_flow_error *error)
1139 {
1140         int ret;
1141         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1142
1143         if (unlikely(!ops))
1144                 return -rte_errno;
1145         if (unlikely(!ops->shared_action_query))
1146                 return rte_flow_error_set(error, ENOSYS,
1147                                           RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1148                                           NULL, rte_strerror(ENOSYS));
1149         ret = ops->shared_action_query(&rte_eth_devices[port_id], action,
1150                                        data, error);
1151         return flow_err(port_id, ret, error);
1152 }
1153
1154 int
1155 rte_flow_tunnel_decap_set(uint16_t port_id,
1156                           struct rte_flow_tunnel *tunnel,
1157                           struct rte_flow_action **actions,
1158                           uint32_t *num_of_actions,
1159                           struct rte_flow_error *error)
1160 {
1161         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
1162         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1163
1164         if (unlikely(!ops))
1165                 return -rte_errno;
1166         if (likely(!!ops->tunnel_decap_set)) {
1167                 return flow_err(port_id,
1168                                 ops->tunnel_decap_set(dev, tunnel, actions,
1169                                                       num_of_actions, error),
1170                                 error);
1171         }
1172         return rte_flow_error_set(error, ENOTSUP,
1173                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1174                                   NULL, rte_strerror(ENOTSUP));
1175 }
1176
1177 int
1178 rte_flow_tunnel_match(uint16_t port_id,
1179                       struct rte_flow_tunnel *tunnel,
1180                       struct rte_flow_item **items,
1181                       uint32_t *num_of_items,
1182                       struct rte_flow_error *error)
1183 {
1184         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
1185         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1186
1187         if (unlikely(!ops))
1188                 return -rte_errno;
1189         if (likely(!!ops->tunnel_match)) {
1190                 return flow_err(port_id,
1191                                 ops->tunnel_match(dev, tunnel, items,
1192                                                   num_of_items, error),
1193                                 error);
1194         }
1195         return rte_flow_error_set(error, ENOTSUP,
1196                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1197                                   NULL, rte_strerror(ENOTSUP));
1198 }
1199
1200 int
1201 rte_flow_get_restore_info(uint16_t port_id,
1202                           struct rte_mbuf *m,
1203                           struct rte_flow_restore_info *restore_info,
1204                           struct rte_flow_error *error)
1205 {
1206         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
1207         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1208
1209         if (unlikely(!ops))
1210                 return -rte_errno;
1211         if (likely(!!ops->get_restore_info)) {
1212                 return flow_err(port_id,
1213                                 ops->get_restore_info(dev, m, restore_info,
1214                                                       error),
1215                                 error);
1216         }
1217         return rte_flow_error_set(error, ENOTSUP,
1218                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1219                                   NULL, rte_strerror(ENOTSUP));
1220 }
1221
1222 int
1223 rte_flow_tunnel_action_decap_release(uint16_t port_id,
1224                                      struct rte_flow_action *actions,
1225                                      uint32_t num_of_actions,
1226                                      struct rte_flow_error *error)
1227 {
1228         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
1229         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1230
1231         if (unlikely(!ops))
1232                 return -rte_errno;
1233         if (likely(!!ops->tunnel_action_decap_release)) {
1234                 return flow_err(port_id,
1235                                 ops->tunnel_action_decap_release(dev, actions,
1236                                                                  num_of_actions,
1237                                                                  error),
1238                                 error);
1239         }
1240         return rte_flow_error_set(error, ENOTSUP,
1241                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1242                                   NULL, rte_strerror(ENOTSUP));
1243 }
1244
1245 int
1246 rte_flow_tunnel_item_release(uint16_t port_id,
1247                              struct rte_flow_item *items,
1248                              uint32_t num_of_items,
1249                              struct rte_flow_error *error)
1250 {
1251         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
1252         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1253
1254         if (unlikely(!ops))
1255                 return -rte_errno;
1256         if (likely(!!ops->tunnel_item_release)) {
1257                 return flow_err(port_id,
1258                                 ops->tunnel_item_release(dev, items,
1259                                                          num_of_items, error),
1260                                 error);
1261         }
1262         return rte_flow_error_set(error, ENOTSUP,
1263                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1264                                   NULL, rte_strerror(ENOTSUP));
1265 }