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