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         MK_FLOW_ITEM(CONNTRACK, sizeof(uint32_t)),
 102 };
 103
 104 /** Generate flow_action[] entry. */
 105 #define MK_FLOW_ACTION(t, s) \
 106         [RTE_FLOW_ACTION_TYPE_ ## t] = { \
 107                 .name = # t, \
 108                 .size = s, \
 109         }
 110
 111 /** Information about known flow actions. */
 112 static const struct rte_flow_desc_data rte_flow_desc_action[] = {
 113         MK_FLOW_ACTION(END, 0),
 114         MK_FLOW_ACTION(VOID, 0),
 115         MK_FLOW_ACTION(PASSTHRU, 0),
 116         MK_FLOW_ACTION(JUMP, sizeof(struct rte_flow_action_jump)),
 117         MK_FLOW_ACTION(MARK, sizeof(struct rte_flow_action_mark)),
 118         MK_FLOW_ACTION(FLAG, 0),
 119         MK_FLOW_ACTION(QUEUE, sizeof(struct rte_flow_action_queue)),
 120         MK_FLOW_ACTION(DROP, 0),
 121         MK_FLOW_ACTION(COUNT, sizeof(struct rte_flow_action_count)),
 122         MK_FLOW_ACTION(RSS, sizeof(struct rte_flow_action_rss)),
 123         MK_FLOW_ACTION(PF, 0),
 124         MK_FLOW_ACTION(VF, sizeof(struct rte_flow_action_vf)),
 125         MK_FLOW_ACTION(PHY_PORT, sizeof(struct rte_flow_action_phy_port)),
 126         MK_FLOW_ACTION(PORT_ID, sizeof(struct rte_flow_action_port_id)),
 127         MK_FLOW_ACTION(METER, sizeof(struct rte_flow_action_meter)),
 128         MK_FLOW_ACTION(SECURITY, sizeof(struct rte_flow_action_security)),
 129         MK_FLOW_ACTION(OF_SET_MPLS_TTL,
 130                        sizeof(struct rte_flow_action_of_set_mpls_ttl)),
 131         MK_FLOW_ACTION(OF_DEC_MPLS_TTL, 0),
 132         MK_FLOW_ACTION(OF_SET_NW_TTL,
 133                        sizeof(struct rte_flow_action_of_set_nw_ttl)),
 134         MK_FLOW_ACTION(OF_DEC_NW_TTL, 0),
 135         MK_FLOW_ACTION(OF_COPY_TTL_OUT, 0),
 136         MK_FLOW_ACTION(OF_COPY_TTL_IN, 0),
 137         MK_FLOW_ACTION(OF_POP_VLAN, 0),
 138         MK_FLOW_ACTION(OF_PUSH_VLAN,
 139                        sizeof(struct rte_flow_action_of_push_vlan)),
 140         MK_FLOW_ACTION(OF_SET_VLAN_VID,
 141                        sizeof(struct rte_flow_action_of_set_vlan_vid)),
 142         MK_FLOW_ACTION(OF_SET_VLAN_PCP,
 143                        sizeof(struct rte_flow_action_of_set_vlan_pcp)),
 144         MK_FLOW_ACTION(OF_POP_MPLS,
 145                        sizeof(struct rte_flow_action_of_pop_mpls)),
 146         MK_FLOW_ACTION(OF_PUSH_MPLS,
 147                        sizeof(struct rte_flow_action_of_push_mpls)),
 148         MK_FLOW_ACTION(VXLAN_ENCAP, sizeof(struct rte_flow_action_vxlan_encap)),
 149         MK_FLOW_ACTION(VXLAN_DECAP, 0),
 150         MK_FLOW_ACTION(NVGRE_ENCAP, sizeof(struct rte_flow_action_vxlan_encap)),
 151         MK_FLOW_ACTION(NVGRE_DECAP, 0),
 152         MK_FLOW_ACTION(RAW_ENCAP, sizeof(struct rte_flow_action_raw_encap)),
 153         MK_FLOW_ACTION(RAW_DECAP, sizeof(struct rte_flow_action_raw_decap)),
 154         MK_FLOW_ACTION(SET_IPV4_SRC,
 155                        sizeof(struct rte_flow_action_set_ipv4)),
 156         MK_FLOW_ACTION(SET_IPV4_DST,
 157                        sizeof(struct rte_flow_action_set_ipv4)),
 158         MK_FLOW_ACTION(SET_IPV6_SRC,
 159                        sizeof(struct rte_flow_action_set_ipv6)),
 160         MK_FLOW_ACTION(SET_IPV6_DST,
 161                        sizeof(struct rte_flow_action_set_ipv6)),
 162         MK_FLOW_ACTION(SET_TP_SRC,
 163                        sizeof(struct rte_flow_action_set_tp)),
 164         MK_FLOW_ACTION(SET_TP_DST,
 165                        sizeof(struct rte_flow_action_set_tp)),
 166         MK_FLOW_ACTION(MAC_SWAP, 0),
 167         MK_FLOW_ACTION(DEC_TTL, 0),
 168         MK_FLOW_ACTION(SET_TTL, sizeof(struct rte_flow_action_set_ttl)),
 169         MK_FLOW_ACTION(SET_MAC_SRC, sizeof(struct rte_flow_action_set_mac)),
 170         MK_FLOW_ACTION(SET_MAC_DST, sizeof(struct rte_flow_action_set_mac)),
 171         MK_FLOW_ACTION(INC_TCP_SEQ, sizeof(rte_be32_t)),
 172         MK_FLOW_ACTION(DEC_TCP_SEQ, sizeof(rte_be32_t)),
 173         MK_FLOW_ACTION(INC_TCP_ACK, sizeof(rte_be32_t)),
 174         MK_FLOW_ACTION(DEC_TCP_ACK, sizeof(rte_be32_t)),
 175         MK_FLOW_ACTION(SET_TAG, sizeof(struct rte_flow_action_set_tag)),
 176         MK_FLOW_ACTION(SET_META, sizeof(struct rte_flow_action_set_meta)),
 177         MK_FLOW_ACTION(SET_IPV4_DSCP, sizeof(struct rte_flow_action_set_dscp)),
 178         MK_FLOW_ACTION(SET_IPV6_DSCP, sizeof(struct rte_flow_action_set_dscp)),
 179         MK_FLOW_ACTION(AGE, sizeof(struct rte_flow_action_age)),
 180         MK_FLOW_ACTION(SAMPLE, sizeof(struct rte_flow_action_sample)),
 181         MK_FLOW_ACTION(MODIFY_FIELD,
 182                        sizeof(struct rte_flow_action_modify_field)),
 183         /**
 184          * Indirect action represented as handle of type
 185          * (struct rte_flow_action_handle *) stored in conf field (see
 186          * struct rte_flow_action); no need for additional structure to * store
 187          * indirect action handle.
 188          */
 189         MK_FLOW_ACTION(INDIRECT, 0),
 190         MK_FLOW_ACTION(CONNTRACK, sizeof(struct rte_flow_action_conntrack)),
 191 };
 192
 193 int
 194 rte_flow_dynf_metadata_register(void)
 195 {
 196         int offset;
 197         int flag;
 198
 199         static const struct rte_mbuf_dynfield desc_offs = {
 200                 .name = RTE_MBUF_DYNFIELD_METADATA_NAME,
 201                 .size = sizeof(uint32_t),
 202                 .align = __alignof__(uint32_t),
 203         };
 204         static const struct rte_mbuf_dynflag desc_flag = {
 205                 .name = RTE_MBUF_DYNFLAG_METADATA_NAME,
 206         };
 207
 208         offset = rte_mbuf_dynfield_register(&desc_offs);
 209         if (offset < 0)
 210                 goto error;
 211         flag = rte_mbuf_dynflag_register(&desc_flag);
 212         if (flag < 0)
 213                 goto error;
 214         rte_flow_dynf_metadata_offs = offset;
 215         rte_flow_dynf_metadata_mask = (1ULL << flag);
 216         return 0;
 217
 218 error:
 219         rte_flow_dynf_metadata_offs = -1;
 220         rte_flow_dynf_metadata_mask = 0ULL;
 221         return -rte_errno;
 222 }
 223
 224 static inline void
 225 fts_enter(struct rte_eth_dev *dev)
 226 {
 227         if (!(dev->data->dev_flags & RTE_ETH_DEV_FLOW_OPS_THREAD_SAFE))
 228                 pthread_mutex_lock(&dev->data->flow_ops_mutex);
 229 }
 230
 231 static inline void
 232 fts_exit(struct rte_eth_dev *dev)
 233 {
 234         if (!(dev->data->dev_flags & RTE_ETH_DEV_FLOW_OPS_THREAD_SAFE))
 235                 pthread_mutex_unlock(&dev->data->flow_ops_mutex);
 236 }
 237
 238 static int
 239 flow_err(uint16_t port_id, int ret, struct rte_flow_error *error)
 240 {
 241         if (ret == 0)
 242                 return 0;
 243         if (rte_eth_dev_is_removed(port_id))
 244                 return rte_flow_error_set(error, EIO,
 245                                           RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 246                                           NULL, rte_strerror(EIO));
 247         return ret;
 248 }
 249
 250 /* Get generic flow operations structure from a port. */
 251 const struct rte_flow_ops *
 252 rte_flow_ops_get(uint16_t port_id, struct rte_flow_error *error)
 253 {
 254         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
 255         const struct rte_flow_ops *ops;
 256         int code;
 257
 258         if (unlikely(!rte_eth_dev_is_valid_port(port_id)))
 259                 code = ENODEV;
 260         else if (unlikely(dev->dev_ops->flow_ops_get == NULL))
 261                 /* flow API not supported with this driver dev_ops */
 262                 code = ENOSYS;
 263         else
 264                 code = dev->dev_ops->flow_ops_get(dev, &ops);
 265         if (code == 0 && ops == NULL)
 266                 /* flow API not supported with this device */
 267                 code = ENOSYS;
 268
 269         if (code != 0) {
 270                 rte_flow_error_set(error, code, RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 271                                    NULL, rte_strerror(code));
 272                 return NULL;
 273         }
 274         return ops;
 275 }
 276
 277 /* Check whether a flow rule can be created on a given port. */
 278 int
 279 rte_flow_validate(uint16_t port_id,
 280                   const struct rte_flow_attr *attr,
 281                   const struct rte_flow_item pattern[],
 282                   const struct rte_flow_action actions[],
 283                   struct rte_flow_error *error)
 284 {
 285         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
 286         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
 287         int ret;
 288
 289         if (unlikely(!ops))
 290                 return -rte_errno;
 291         if (likely(!!ops->validate)) {
 292                 fts_enter(dev);
 293                 ret = ops->validate(dev, attr, pattern, actions, error);
 294                 fts_exit(dev);
 295                 return flow_err(port_id, ret, error);
 296         }
 297         return rte_flow_error_set(error, ENOSYS,
 298                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 299                                   NULL, rte_strerror(ENOSYS));
 300 }
 301
 302 /* Create a flow rule on a given port. */
 303 struct rte_flow *
 304 rte_flow_create(uint16_t port_id,
 305                 const struct rte_flow_attr *attr,
 306                 const struct rte_flow_item pattern[],
 307                 const struct rte_flow_action actions[],
 308                 struct rte_flow_error *error)
 309 {
 310         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
 311         struct rte_flow *flow;
 312         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
 313
 314         if (unlikely(!ops))
 315                 return NULL;
 316         if (likely(!!ops->create)) {
 317                 fts_enter(dev);
 318                 flow = ops->create(dev, attr, pattern, actions, error);
 319                 fts_exit(dev);
 320                 if (flow == NULL)
 321                         flow_err(port_id, -rte_errno, error);
 322                 return flow;
 323         }
 324         rte_flow_error_set(error, ENOSYS, RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 325                            NULL, rte_strerror(ENOSYS));
 326         return NULL;
 327 }
 328
 329 /* Destroy a flow rule on a given port. */
 330 int
 331 rte_flow_destroy(uint16_t port_id,
 332                  struct rte_flow *flow,
 333                  struct rte_flow_error *error)
 334 {
 335         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
 336         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
 337         int ret;
 338
 339         if (unlikely(!ops))
 340                 return -rte_errno;
 341         if (likely(!!ops->destroy)) {
 342                 fts_enter(dev);
 343                 ret = ops->destroy(dev, flow, error);
 344                 fts_exit(dev);
 345                 return flow_err(port_id, ret, error);
 346         }
 347         return rte_flow_error_set(error, ENOSYS,
 348                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 349                                   NULL, rte_strerror(ENOSYS));
 350 }
 351
 352 /* Destroy all flow rules associated with a port. */
 353 int
 354 rte_flow_flush(uint16_t port_id,
 355                struct rte_flow_error *error)
 356 {
 357         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
 358         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
 359         int ret;
 360
 361         if (unlikely(!ops))
 362                 return -rte_errno;
 363         if (likely(!!ops->flush)) {
 364                 fts_enter(dev);
 365                 ret = ops->flush(dev, error);
 366                 fts_exit(dev);
 367                 return flow_err(port_id, ret, error);
 368         }
 369         return rte_flow_error_set(error, ENOSYS,
 370                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 371                                   NULL, rte_strerror(ENOSYS));
 372 }
 373
 374 /* Query an existing flow rule. */
 375 int
 376 rte_flow_query(uint16_t port_id,
 377                struct rte_flow *flow,
 378                const struct rte_flow_action *action,
 379                void *data,
 380                struct rte_flow_error *error)
 381 {
 382         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
 383         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
 384         int ret;
 385
 386         if (!ops)
 387                 return -rte_errno;
 388         if (likely(!!ops->query)) {
 389                 fts_enter(dev);
 390                 ret = ops->query(dev, flow, action, data, error);
 391                 fts_exit(dev);
 392                 return flow_err(port_id, ret, error);
 393         }
 394         return rte_flow_error_set(error, ENOSYS,
 395                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 396                                   NULL, rte_strerror(ENOSYS));
 397 }
 398
 399 /* Restrict ingress traffic to the defined flow rules. */
 400 int
 401 rte_flow_isolate(uint16_t port_id,
 402                  int set,
 403                  struct rte_flow_error *error)
 404 {
 405         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
 406         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
 407         int ret;
 408
 409         if (!ops)
 410                 return -rte_errno;
 411         if (likely(!!ops->isolate)) {
 412                 fts_enter(dev);
 413                 ret = ops->isolate(dev, set, error);
 414                 fts_exit(dev);
 415                 return flow_err(port_id, ret, error);
 416         }
 417         return rte_flow_error_set(error, ENOSYS,
 418                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 419                                   NULL, rte_strerror(ENOSYS));
 420 }
 421
 422 /* Initialize flow error structure. */
 423 int
 424 rte_flow_error_set(struct rte_flow_error *error,
 425                    int code,
 426                    enum rte_flow_error_type type,
 427                    const void *cause,
 428                    const char *message)
 429 {
 430         if (error) {
 431                 *error = (struct rte_flow_error){
 432                         .type = type,
 433                         .cause = cause,
 434                         .message = message,
 435                 };
 436         }
 437         rte_errno = code;
 438         return -code;
 439 }
 440
 441 /** Pattern item specification types. */
 442 enum rte_flow_conv_item_spec_type {
 443         RTE_FLOW_CONV_ITEM_SPEC,
 444         RTE_FLOW_CONV_ITEM_LAST,
 445         RTE_FLOW_CONV_ITEM_MASK,
 446 };
 447
 448 /**
 449  * Copy pattern item specification.
 450  *
 451  * @param[out] buf
 452  *   Output buffer. Can be NULL if @p size is zero.
 453  * @param size
 454  *   Size of @p buf in bytes.
 455  * @param[in] item
 456  *   Pattern item to copy specification from.
 457  * @param type
 458  *   Specification selector for either @p spec, @p last or @p mask.
 459  *
 460  * @return
 461  *   Number of bytes needed to store pattern item specification regardless
 462  *   of @p size. @p buf contents are truncated to @p size if not large
 463  *   enough.
 464  */
 465 static size_t
 466 rte_flow_conv_item_spec(void *buf, const size_t size,
 467                         const struct rte_flow_item *item,
 468                         enum rte_flow_conv_item_spec_type type)
 469 {
 470         size_t off;
 471         const void *data =
 472                 type == RTE_FLOW_CONV_ITEM_SPEC ? item->spec :
 473                 type == RTE_FLOW_CONV_ITEM_LAST ? item->last :
 474                 type == RTE_FLOW_CONV_ITEM_MASK ? item->mask :
 475                 NULL;
 476
 477         switch (item->type) {
 478                 union {
 479                         const struct rte_flow_item_raw *raw;
 480                 } spec;
 481                 union {
 482                         const struct rte_flow_item_raw *raw;
 483                 } last;
 484                 union {
 485                         const struct rte_flow_item_raw *raw;
 486                 } mask;
 487                 union {
 488                         const struct rte_flow_item_raw *raw;
 489                 } src;
 490                 union {
 491                         struct rte_flow_item_raw *raw;
 492                 } dst;
 493                 size_t tmp;
 494
 495         case RTE_FLOW_ITEM_TYPE_RAW:
 496                 spec.raw = item->spec;
 497                 last.raw = item->last ? item->last : item->spec;
 498                 mask.raw = item->mask ? item->mask : &rte_flow_item_raw_mask;
 499                 src.raw = data;
 500                 dst.raw = buf;
 501                 rte_memcpy(dst.raw,
 502                            (&(struct rte_flow_item_raw){
 503                                 .relative = src.raw->relative,
 504                                 .search = src.raw->search,
 505                                 .reserved = src.raw->reserved,
 506                                 .offset = src.raw->offset,
 507                                 .limit = src.raw->limit,
 508                                 .length = src.raw->length,
 509                            }),
 510                            size > sizeof(*dst.raw) ? sizeof(*dst.raw) : size);
 511                 off = sizeof(*dst.raw);
 512                 if (type == RTE_FLOW_CONV_ITEM_SPEC ||
 513                     (type == RTE_FLOW_CONV_ITEM_MASK &&
 514                      ((spec.raw->length & mask.raw->length) >=
 515                       (last.raw->length & mask.raw->length))))
 516                         tmp = spec.raw->length & mask.raw->length;
 517                 else
 518                         tmp = last.raw->length & mask.raw->length;
 519                 if (tmp) {
 520                         off = RTE_ALIGN_CEIL(off, sizeof(*dst.raw->pattern));
 521                         if (size >= off + tmp)
 522                                 dst.raw->pattern = rte_memcpy
 523                                         ((void *)((uintptr_t)dst.raw + off),
 524                                          src.raw->pattern, tmp);
 525                         off += tmp;
 526                 }
 527                 break;
 528         default:
 529                 /**
 530                  * allow PMD private flow item
 531                  */
 532                 off = (int)item->type >= 0 ?
 533                       rte_flow_desc_item[item->type].size : sizeof(void *);
 534                 rte_memcpy(buf, data, (size > off ? off : size));
 535                 break;
 536         }
 537         return off;
 538 }
 539
 540 /**
 541  * Copy action configuration.
 542  *
 543  * @param[out] buf
 544  *   Output buffer. Can be NULL if @p size is zero.
 545  * @param size
 546  *   Size of @p buf in bytes.
 547  * @param[in] action
 548  *   Action to copy configuration from.
 549  *
 550  * @return
 551  *   Number of bytes needed to store pattern item specification regardless
 552  *   of @p size. @p buf contents are truncated to @p size if not large
 553  *   enough.
 554  */
 555 static size_t
 556 rte_flow_conv_action_conf(void *buf, const size_t size,
 557                           const struct rte_flow_action *action)
 558 {
 559         size_t off;
 560
 561         switch (action->type) {
 562                 union {
 563                         const struct rte_flow_action_rss *rss;
 564                         const struct rte_flow_action_vxlan_encap *vxlan_encap;
 565                         const struct rte_flow_action_nvgre_encap *nvgre_encap;
 566                 } src;
 567                 union {
 568                         struct rte_flow_action_rss *rss;
 569                         struct rte_flow_action_vxlan_encap *vxlan_encap;
 570                         struct rte_flow_action_nvgre_encap *nvgre_encap;
 571                 } dst;
 572                 size_t tmp;
 573                 int ret;
 574
 575         case RTE_FLOW_ACTION_TYPE_RSS:
 576                 src.rss = action->conf;
 577                 dst.rss = buf;
 578                 rte_memcpy(dst.rss,
 579                            (&(struct rte_flow_action_rss){
 580                                 .func = src.rss->func,
 581                                 .level = src.rss->level,
 582                                 .types = src.rss->types,
 583                                 .key_len = src.rss->key_len,
 584                                 .queue_num = src.rss->queue_num,
 585                            }),
 586                            size > sizeof(*dst.rss) ? sizeof(*dst.rss) : size);
 587                 off = sizeof(*dst.rss);
 588                 if (src.rss->key_len && src.rss->key) {
 589                         off = RTE_ALIGN_CEIL(off, sizeof(*dst.rss->key));
 590                         tmp = sizeof(*src.rss->key) * src.rss->key_len;
 591                         if (size >= off + tmp)
 592                                 dst.rss->key = rte_memcpy
 593                                         ((void *)((uintptr_t)dst.rss + off),
 594                                          src.rss->key, tmp);
 595                         off += tmp;
 596                 }
 597                 if (src.rss->queue_num) {
 598                         off = RTE_ALIGN_CEIL(off, sizeof(*dst.rss->queue));
 599                         tmp = sizeof(*src.rss->queue) * src.rss->queue_num;
 600                         if (size >= off + tmp)
 601                                 dst.rss->queue = rte_memcpy
 602                                         ((void *)((uintptr_t)dst.rss + off),
 603                                          src.rss->queue, tmp);
 604                         off += tmp;
 605                 }
 606                 break;
 607         case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
 608         case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP:
 609                 src.vxlan_encap = action->conf;
 610                 dst.vxlan_encap = buf;
 611                 RTE_BUILD_BUG_ON(sizeof(*src.vxlan_encap) !=
 612                                  sizeof(*src.nvgre_encap) ||
 613                                  offsetof(struct rte_flow_action_vxlan_encap,
 614                                           definition) !=
 615                                  offsetof(struct rte_flow_action_nvgre_encap,
 616                                           definition));
 617                 off = sizeof(*dst.vxlan_encap);
 618                 if (src.vxlan_encap->definition) {
 619                         off = RTE_ALIGN_CEIL
 620                                 (off, sizeof(*dst.vxlan_encap->definition));
 621                         ret = rte_flow_conv
 622                                 (RTE_FLOW_CONV_OP_PATTERN,
 623                                  (void *)((uintptr_t)dst.vxlan_encap + off),
 624                                  size > off ? size - off : 0,
 625                                  src.vxlan_encap->definition, NULL);
 626                         if (ret < 0)
 627                                 return 0;
 628                         if (size >= off + ret)
 629                                 dst.vxlan_encap->definition =
 630                                         (void *)((uintptr_t)dst.vxlan_encap +
 631                                                  off);
 632                         off += ret;
 633                 }
 634                 break;
 635         default:
 636                 /**
 637                  * allow PMD private flow action
 638                  */
 639                 off = (int)action->type >= 0 ?
 640                       rte_flow_desc_action[action->type].size : sizeof(void *);
 641                 rte_memcpy(buf, action->conf, (size > off ? off : size));
 642                 break;
 643         }
 644         return off;
 645 }
 646
 647 /**
 648  * Copy a list of pattern items.
 649  *
 650  * @param[out] dst
 651  *   Destination buffer. Can be NULL if @p size is zero.
 652  * @param size
 653  *   Size of @p dst in bytes.
 654  * @param[in] src
 655  *   Source pattern items.
 656  * @param num
 657  *   Maximum number of pattern items to process from @p src or 0 to process
 658  *   the entire list. In both cases, processing stops after
 659  *   RTE_FLOW_ITEM_TYPE_END is encountered.
 660  * @param[out] error
 661  *   Perform verbose error reporting if not NULL.
 662  *
 663  * @return
 664  *   A positive value representing the number of bytes needed to store
 665  *   pattern items regardless of @p size on success (@p buf contents are
 666  *   truncated to @p size if not large enough), a negative errno value
 667  *   otherwise and rte_errno is set.
 668  */
 669 static int
 670 rte_flow_conv_pattern(struct rte_flow_item *dst,
 671                       const size_t size,
 672                       const struct rte_flow_item *src,
 673                       unsigned int num,
 674                       struct rte_flow_error *error)
 675 {
 676         uintptr_t data = (uintptr_t)dst;
 677         size_t off;
 678         size_t ret;
 679         unsigned int i;
 680
 681         for (i = 0, off = 0; !num || i != num; ++i, ++src, ++dst) {
 682                 /**
 683                  * allow PMD private flow item
 684                  */
 685                 if (((int)src->type >= 0) &&
 686                         ((size_t)src->type >= RTE_DIM(rte_flow_desc_item) ||
 687                     !rte_flow_desc_item[src->type].name))
 688                         return rte_flow_error_set
 689                                 (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, src,
 690                                  "cannot convert unknown item type");
 691                 if (size >= off + sizeof(*dst))
 692                         *dst = (struct rte_flow_item){
 693                                 .type = src->type,
 694                         };
 695                 off += sizeof(*dst);
 696                 if (!src->type)
 697                         num = i + 1;
 698         }
 699         num = i;
 700         src -= num;
 701         dst -= num;
 702         do {
 703                 if (src->spec) {
 704                         off = RTE_ALIGN_CEIL(off, sizeof(double));
 705                         ret = rte_flow_conv_item_spec
 706                                 ((void *)(data + off),
 707                                  size > off ? size - off : 0, src,
 708                                  RTE_FLOW_CONV_ITEM_SPEC);
 709                         if (size && size >= off + ret)
 710                                 dst->spec = (void *)(data + off);
 711                         off += ret;
 712
 713                 }
 714                 if (src->last) {
 715                         off = RTE_ALIGN_CEIL(off, sizeof(double));
 716                         ret = rte_flow_conv_item_spec
 717                                 ((void *)(data + off),
 718                                  size > off ? size - off : 0, src,
 719                                  RTE_FLOW_CONV_ITEM_LAST);
 720                         if (size && size >= off + ret)
 721                                 dst->last = (void *)(data + off);
 722                         off += ret;
 723                 }
 724                 if (src->mask) {
 725                         off = RTE_ALIGN_CEIL(off, sizeof(double));
 726                         ret = rte_flow_conv_item_spec
 727                                 ((void *)(data + off),
 728                                  size > off ? size - off : 0, src,
 729                                  RTE_FLOW_CONV_ITEM_MASK);
 730                         if (size && size >= off + ret)
 731                                 dst->mask = (void *)(data + off);
 732                         off += ret;
 733                 }
 734                 ++src;
 735                 ++dst;
 736         } while (--num);
 737         return off;
 738 }
 739
 740 /**
 741  * Copy a list of actions.
 742  *
 743  * @param[out] dst
 744  *   Destination buffer. Can be NULL if @p size is zero.
 745  * @param size
 746  *   Size of @p dst in bytes.
 747  * @param[in] src
 748  *   Source actions.
 749  * @param num
 750  *   Maximum number of actions to process from @p src or 0 to process the
 751  *   entire list. In both cases, processing stops after
 752  *   RTE_FLOW_ACTION_TYPE_END is encountered.
 753  * @param[out] error
 754  *   Perform verbose error reporting if not NULL.
 755  *
 756  * @return
 757  *   A positive value representing the number of bytes needed to store
 758  *   actions regardless of @p size on success (@p buf contents are truncated
 759  *   to @p size if not large enough), a negative errno value otherwise and
 760  *   rte_errno is set.
 761  */
 762 static int
 763 rte_flow_conv_actions(struct rte_flow_action *dst,
 764                       const size_t size,
 765                       const struct rte_flow_action *src,
 766                       unsigned int num,
 767                       struct rte_flow_error *error)
 768 {
 769         uintptr_t data = (uintptr_t)dst;
 770         size_t off;
 771         size_t ret;
 772         unsigned int i;
 773
 774         for (i = 0, off = 0; !num || i != num; ++i, ++src, ++dst) {
 775                 /**
 776                  * allow PMD private flow action
 777                  */
 778                 if (((int)src->type >= 0) &&
 779                     ((size_t)src->type >= RTE_DIM(rte_flow_desc_action) ||
 780                     !rte_flow_desc_action[src->type].name))
 781                         return rte_flow_error_set
 782                                 (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION,
 783                                  src, "cannot convert unknown action type");
 784                 if (size >= off + sizeof(*dst))
 785                         *dst = (struct rte_flow_action){
 786                                 .type = src->type,
 787                         };
 788                 off += sizeof(*dst);
 789                 if (!src->type)
 790                         num = i + 1;
 791         }
 792         num = i;
 793         src -= num;
 794         dst -= num;
 795         do {
 796                 if (src->conf) {
 797                         off = RTE_ALIGN_CEIL(off, sizeof(double));
 798                         ret = rte_flow_conv_action_conf
 799                                 ((void *)(data + off),
 800                                  size > off ? size - off : 0, src);
 801                         if (size && size >= off + ret)
 802                                 dst->conf = (void *)(data + off);
 803                         off += ret;
 804                 }
 805                 ++src;
 806                 ++dst;
 807         } while (--num);
 808         return off;
 809 }
 810
 811 /**
 812  * Copy flow rule components.
 813  *
 814  * This comprises the flow rule descriptor itself, attributes, pattern and
 815  * actions list. NULL components in @p src are skipped.
 816  *
 817  * @param[out] dst
 818  *   Destination buffer. Can be NULL if @p size is zero.
 819  * @param size
 820  *   Size of @p dst in bytes.
 821  * @param[in] src
 822  *   Source flow rule descriptor.
 823  * @param[out] error
 824  *   Perform verbose error reporting if not NULL.
 825  *
 826  * @return
 827  *   A positive value representing the number of bytes needed to store all
 828  *   components including the descriptor regardless of @p size on success
 829  *   (@p buf contents are truncated to @p size if not large enough), a
 830  *   negative errno value otherwise and rte_errno is set.
 831  */
 832 static int
 833 rte_flow_conv_rule(struct rte_flow_conv_rule *dst,
 834                    const size_t size,
 835                    const struct rte_flow_conv_rule *src,
 836                    struct rte_flow_error *error)
 837 {
 838         size_t off;
 839         int ret;
 840
 841         rte_memcpy(dst,
 842                    (&(struct rte_flow_conv_rule){
 843                         .attr = NULL,
 844                         .pattern = NULL,
 845                         .actions = NULL,
 846                    }),
 847                    size > sizeof(*dst) ? sizeof(*dst) : size);
 848         off = sizeof(*dst);
 849         if (src->attr_ro) {
 850                 off = RTE_ALIGN_CEIL(off, sizeof(double));
 851                 if (size && size >= off + sizeof(*dst->attr))
 852                         dst->attr = rte_memcpy
 853                                 ((void *)((uintptr_t)dst + off),
 854                                  src->attr_ro, sizeof(*dst->attr));
 855                 off += sizeof(*dst->attr);
 856         }
 857         if (src->pattern_ro) {
 858                 off = RTE_ALIGN_CEIL(off, sizeof(double));
 859                 ret = rte_flow_conv_pattern((void *)((uintptr_t)dst + off),
 860                                             size > off ? size - off : 0,
 861                                             src->pattern_ro, 0, error);
 862                 if (ret < 0)
 863                         return ret;
 864                 if (size && size >= off + (size_t)ret)
 865                         dst->pattern = (void *)((uintptr_t)dst + off);
 866                 off += ret;
 867         }
 868         if (src->actions_ro) {
 869                 off = RTE_ALIGN_CEIL(off, sizeof(double));
 870                 ret = rte_flow_conv_actions((void *)((uintptr_t)dst + off),
 871                                             size > off ? size - off : 0,
 872                                             src->actions_ro, 0, error);
 873                 if (ret < 0)
 874                         return ret;
 875                 if (size >= off + (size_t)ret)
 876                         dst->actions = (void *)((uintptr_t)dst + off);
 877                 off += ret;
 878         }
 879         return off;
 880 }
 881
 882 /**
 883  * Retrieve the name of a pattern item/action type.
 884  *
 885  * @param is_action
 886  *   Nonzero when @p src represents an action type instead of a pattern item
 887  *   type.
 888  * @param is_ptr
 889  *   Nonzero to write string address instead of contents into @p dst.
 890  * @param[out] dst
 891  *   Destination buffer. Can be NULL if @p size is zero.
 892  * @param size
 893  *   Size of @p dst in bytes.
 894  * @param[in] src
 895  *   Depending on @p is_action, source pattern item or action type cast as a
 896  *   pointer.
 897  * @param[out] error
 898  *   Perform verbose error reporting if not NULL.
 899  *
 900  * @return
 901  *   A positive value representing the number of bytes needed to store the
 902  *   name or its address regardless of @p size on success (@p buf contents
 903  *   are truncated to @p size if not large enough), a negative errno value
 904  *   otherwise and rte_errno is set.
 905  */
 906 static int
 907 rte_flow_conv_name(int is_action,
 908                    int is_ptr,
 909                    char *dst,
 910                    const size_t size,
 911                    const void *src,
 912                    struct rte_flow_error *error)
 913 {
 914         struct desc_info {
 915                 const struct rte_flow_desc_data *data;
 916                 size_t num;
 917         };
 918         static const struct desc_info info_rep[2] = {
 919                 { rte_flow_desc_item, RTE_DIM(rte_flow_desc_item), },
 920                 { rte_flow_desc_action, RTE_DIM(rte_flow_desc_action), },
 921         };
 922         const struct desc_info *const info = &info_rep[!!is_action];
 923         unsigned int type = (uintptr_t)src;
 924
 925         if (type >= info->num)
 926                 return rte_flow_error_set
 927                         (error, EINVAL, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
 928                          "unknown object type to retrieve the name of");
 929         if (!is_ptr)
 930                 return strlcpy(dst, info->data[type].name, size);
 931         if (size >= sizeof(const char **))
 932                 *((const char **)dst) = info->data[type].name;
 933         return sizeof(const char **);
 934 }
 935
 936 /** Helper function to convert flow API objects. */
 937 int
 938 rte_flow_conv(enum rte_flow_conv_op op,
 939               void *dst,
 940               size_t size,
 941               const void *src,
 942               struct rte_flow_error *error)
 943 {
 944         switch (op) {
 945                 const struct rte_flow_attr *attr;
 946
 947         case RTE_FLOW_CONV_OP_NONE:
 948                 return 0;
 949         case RTE_FLOW_CONV_OP_ATTR:
 950                 attr = src;
 951                 if (size > sizeof(*attr))
 952                         size = sizeof(*attr);
 953                 rte_memcpy(dst, attr, size);
 954                 return sizeof(*attr);
 955         case RTE_FLOW_CONV_OP_ITEM:
 956                 return rte_flow_conv_pattern(dst, size, src, 1, error);
 957         case RTE_FLOW_CONV_OP_ACTION:
 958                 return rte_flow_conv_actions(dst, size, src, 1, error);
 959         case RTE_FLOW_CONV_OP_PATTERN:
 960                 return rte_flow_conv_pattern(dst, size, src, 0, error);
 961         case RTE_FLOW_CONV_OP_ACTIONS:
 962                 return rte_flow_conv_actions(dst, size, src, 0, error);
 963         case RTE_FLOW_CONV_OP_RULE:
 964                 return rte_flow_conv_rule(dst, size, src, error);
 965         case RTE_FLOW_CONV_OP_ITEM_NAME:
 966                 return rte_flow_conv_name(0, 0, dst, size, src, error);
 967         case RTE_FLOW_CONV_OP_ACTION_NAME:
 968                 return rte_flow_conv_name(1, 0, dst, size, src, error);
 969         case RTE_FLOW_CONV_OP_ITEM_NAME_PTR:
 970                 return rte_flow_conv_name(0, 1, dst, size, src, error);
 971         case RTE_FLOW_CONV_OP_ACTION_NAME_PTR:
 972                 return rte_flow_conv_name(1, 1, dst, size, src, error);
 973         }
 974         return rte_flow_error_set
 975                 (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
 976                  "unknown object conversion operation");
 977 }
 978
 979 /** Store a full rte_flow description. */
 980 size_t
 981 rte_flow_copy(struct rte_flow_desc *desc, size_t len,
 982               const struct rte_flow_attr *attr,
 983               const struct rte_flow_item *items,
 984               const struct rte_flow_action *actions)
 985 {
 986         /*
 987          * Overlap struct rte_flow_conv with struct rte_flow_desc in order
 988          * to convert the former to the latter without wasting space.
 989          */
 990         struct rte_flow_conv_rule *dst =
 991                 len ?
 992                 (void *)((uintptr_t)desc +
 993                          (offsetof(struct rte_flow_desc, actions) -
 994                           offsetof(struct rte_flow_conv_rule, actions))) :
 995                 NULL;
 996         size_t dst_size =
 997                 len > sizeof(*desc) - sizeof(*dst) ?
 998                 len - (sizeof(*desc) - sizeof(*dst)) :
 999                 0;
1000         struct rte_flow_conv_rule src = {
1001                 .attr_ro = NULL,
1002                 .pattern_ro = items,
1003                 .actions_ro = actions,
1004         };
1005         int ret;
1006
1007         RTE_BUILD_BUG_ON(sizeof(struct rte_flow_desc) <
1008                          sizeof(struct rte_flow_conv_rule));
1009         if (dst_size &&
1010             (&dst->pattern != &desc->items ||
1011              &dst->actions != &desc->actions ||
1012              (uintptr_t)(dst + 1) != (uintptr_t)(desc + 1))) {
1013                 rte_errno = EINVAL;
1014                 return 0;
1015         }
1016         ret = rte_flow_conv(RTE_FLOW_CONV_OP_RULE, dst, dst_size, &src, NULL);
1017         if (ret < 0)
1018                 return 0;
1019         ret += sizeof(*desc) - sizeof(*dst);
1020         rte_memcpy(desc,
1021                    (&(struct rte_flow_desc){
1022                         .size = ret,
1023                         .attr = *attr,
1024                         .items = dst_size ? dst->pattern : NULL,
1025                         .actions = dst_size ? dst->actions : NULL,
1026                    }),
1027                    len > sizeof(*desc) ? sizeof(*desc) : len);
1028         return ret;
1029 }
1030
1031 int
1032 rte_flow_dev_dump(uint16_t port_id, struct rte_flow *flow,
1033                         FILE *file, struct rte_flow_error *error)
1034 {
1035         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
1036         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1037         int ret;
1038
1039         if (unlikely(!ops))
1040                 return -rte_errno;
1041         if (likely(!!ops->dev_dump)) {
1042                 fts_enter(dev);
1043                 ret = ops->dev_dump(dev, flow, file, error);
1044                 fts_exit(dev);
1045                 return flow_err(port_id, ret, error);
1046         }
1047         return rte_flow_error_set(error, ENOSYS,
1048                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1049                                   NULL, rte_strerror(ENOSYS));
1050 }
1051
1052 int
1053 rte_flow_get_aged_flows(uint16_t port_id, void **contexts,
1054                     uint32_t nb_contexts, struct rte_flow_error *error)
1055 {
1056         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
1057         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1058         int ret;
1059
1060         if (unlikely(!ops))
1061                 return -rte_errno;
1062         if (likely(!!ops->get_aged_flows)) {
1063                 fts_enter(dev);
1064                 ret = ops->get_aged_flows(dev, contexts, nb_contexts, error);
1065                 fts_exit(dev);
1066                 return flow_err(port_id, ret, error);
1067         }
1068         return rte_flow_error_set(error, ENOTSUP,
1069                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1070                                   NULL, rte_strerror(ENOTSUP));
1071 }
1072
1073 struct rte_flow_action_handle *
1074 rte_flow_action_handle_create(uint16_t port_id,
1075                               const struct rte_flow_indir_action_conf *conf,
1076                               const struct rte_flow_action *action,
1077                               struct rte_flow_error *error)
1078 {
1079         struct rte_flow_action_handle *handle;
1080         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1081
1082         if (unlikely(!ops))
1083                 return NULL;
1084         if (unlikely(!ops->action_handle_create)) {
1085                 rte_flow_error_set(error, ENOSYS,
1086                                    RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
1087                                    rte_strerror(ENOSYS));
1088                 return NULL;
1089         }
1090         handle = ops->action_handle_create(&rte_eth_devices[port_id],
1091                                            conf, action, error);
1092         if (handle == NULL)
1093                 flow_err(port_id, -rte_errno, error);
1094         return handle;
1095 }
1096
1097 int
1098 rte_flow_action_handle_destroy(uint16_t port_id,
1099                                struct rte_flow_action_handle *handle,
1100                                struct rte_flow_error *error)
1101 {
1102         int ret;
1103         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1104
1105         if (unlikely(!ops))
1106                 return -rte_errno;
1107         if (unlikely(!ops->action_handle_destroy))
1108                 return rte_flow_error_set(error, ENOSYS,
1109                                           RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1110                                           NULL, rte_strerror(ENOSYS));
1111         ret = ops->action_handle_destroy(&rte_eth_devices[port_id],
1112                                          handle, error);
1113         return flow_err(port_id, ret, error);
1114 }
1115
1116 int
1117 rte_flow_action_handle_update(uint16_t port_id,
1118                               struct rte_flow_action_handle *handle,
1119                               const void *update,
1120                               struct rte_flow_error *error)
1121 {
1122         int ret;
1123         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1124
1125         if (unlikely(!ops))
1126                 return -rte_errno;
1127         if (unlikely(!ops->action_handle_update))
1128                 return rte_flow_error_set(error, ENOSYS,
1129                                           RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1130                                           NULL, rte_strerror(ENOSYS));
1131         ret = ops->action_handle_update(&rte_eth_devices[port_id], handle,
1132                                         update, error);
1133         return flow_err(port_id, ret, error);
1134 }
1135
1136 int
1137 rte_flow_action_handle_query(uint16_t port_id,
1138                              const struct rte_flow_action_handle *handle,
1139                              void *data,
1140                              struct rte_flow_error *error)
1141 {
1142         int ret;
1143         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1144
1145         if (unlikely(!ops))
1146                 return -rte_errno;
1147         if (unlikely(!ops->action_handle_query))
1148                 return rte_flow_error_set(error, ENOSYS,
1149                                           RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1150                                           NULL, rte_strerror(ENOSYS));
1151         ret = ops->action_handle_query(&rte_eth_devices[port_id], handle,
1152                                        data, error);
1153         return flow_err(port_id, ret, error);
1154 }
1155
1156 int
1157 rte_flow_tunnel_decap_set(uint16_t port_id,
1158                           struct rte_flow_tunnel *tunnel,
1159                           struct rte_flow_action **actions,
1160                           uint32_t *num_of_actions,
1161                           struct rte_flow_error *error)
1162 {
1163         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
1164         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1165
1166         if (unlikely(!ops))
1167                 return -rte_errno;
1168         if (likely(!!ops->tunnel_decap_set)) {
1169                 return flow_err(port_id,
1170                                 ops->tunnel_decap_set(dev, tunnel, actions,
1171                                                       num_of_actions, error),
1172                                 error);
1173         }
1174         return rte_flow_error_set(error, ENOTSUP,
1175                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1176                                   NULL, rte_strerror(ENOTSUP));
1177 }
1178
1179 int
1180 rte_flow_tunnel_match(uint16_t port_id,
1181                       struct rte_flow_tunnel *tunnel,
1182                       struct rte_flow_item **items,
1183                       uint32_t *num_of_items,
1184                       struct rte_flow_error *error)
1185 {
1186         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
1187         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1188
1189         if (unlikely(!ops))
1190                 return -rte_errno;
1191         if (likely(!!ops->tunnel_match)) {
1192                 return flow_err(port_id,
1193                                 ops->tunnel_match(dev, tunnel, items,
1194                                                   num_of_items, error),
1195                                 error);
1196         }
1197         return rte_flow_error_set(error, ENOTSUP,
1198                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1199                                   NULL, rte_strerror(ENOTSUP));
1200 }
1201
1202 int
1203 rte_flow_get_restore_info(uint16_t port_id,
1204                           struct rte_mbuf *m,
1205                           struct rte_flow_restore_info *restore_info,
1206                           struct rte_flow_error *error)
1207 {
1208         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
1209         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1210
1211         if (unlikely(!ops))
1212                 return -rte_errno;
1213         if (likely(!!ops->get_restore_info)) {
1214                 return flow_err(port_id,
1215                                 ops->get_restore_info(dev, m, restore_info,
1216                                                       error),
1217                                 error);
1218         }
1219         return rte_flow_error_set(error, ENOTSUP,
1220                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1221                                   NULL, rte_strerror(ENOTSUP));
1222 }
1223
1224 int
1225 rte_flow_tunnel_action_decap_release(uint16_t port_id,
1226                                      struct rte_flow_action *actions,
1227                                      uint32_t num_of_actions,
1228                                      struct rte_flow_error *error)
1229 {
1230         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
1231         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1232
1233         if (unlikely(!ops))
1234                 return -rte_errno;
1235         if (likely(!!ops->tunnel_action_decap_release)) {
1236                 return flow_err(port_id,
1237                                 ops->tunnel_action_decap_release(dev, actions,
1238                                                                  num_of_actions,
1239                                                                  error),
1240                                 error);
1241         }
1242         return rte_flow_error_set(error, ENOTSUP,
1243                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1244                                   NULL, rte_strerror(ENOTSUP));
1245 }
1246
1247 int
1248 rte_flow_tunnel_item_release(uint16_t port_id,
1249                              struct rte_flow_item *items,
1250                              uint32_t num_of_items,
1251                              struct rte_flow_error *error)
1252 {
1253         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
1254         const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
1255
1256         if (unlikely(!ops))
1257                 return -rte_errno;
1258         if (likely(!!ops->tunnel_item_release)) {
1259                 return flow_err(port_id,
1260                                 ops->tunnel_item_release(dev, items,
1261                                                          num_of_items, error),
1262                                 error);
1263         }
1264         return rte_flow_error_set(error, ENOTSUP,
1265                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1266                                   NULL, rte_strerror(ENOTSUP));
1267 }