lib/ethdev/rte_flow_driver.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright 2016 6WIND S.A.
   3  * Copyright 2016 Mellanox Technologies, Ltd
   4  */
   5
   6 #ifndef RTE_FLOW_DRIVER_H_
   7 #define RTE_FLOW_DRIVER_H_
   8
   9 /**
  10  * @file
  11  * RTE generic flow API (driver side)
  12  *
  13  * This file provides implementation helpers for internal use by PMDs, they
  14  * are not intended to be exposed to applications and are not subject to ABI
  15  * versioning.
  16  */
  17
  18 #include <stdint.h>
  19
  20 #include "rte_ethdev.h"
  21 #include "ethdev_driver.h"
  22 #include "rte_flow.h"
  23
  24 #ifdef __cplusplus
  25 extern "C" {
  26 #endif
  27
  28 /**
  29  * Generic flow operations structure implemented and returned by PMDs.
  30  *
  31  * These callback functions are not supposed to be used by applications
  32  * directly, which must rely on the API defined in rte_flow.h.
  33  *
  34  * Public-facing wrapper functions perform a few consistency checks so that
  35  * unimplemented (i.e. NULL) callbacks simply return -ENOTSUP. These
  36  * callbacks otherwise only differ by their first argument (with port ID
  37  * already resolved to a pointer to struct rte_eth_dev).
  38  */
  39 struct rte_flow_ops {
  40         /** See rte_flow_validate(). */
  41         int (*validate)
  42                 (struct rte_eth_dev *,
  43                  const struct rte_flow_attr *,
  44                  const struct rte_flow_item [],
  45                  const struct rte_flow_action [],
  46                  struct rte_flow_error *);
  47         /** See rte_flow_create(). */
  48         struct rte_flow *(*create)
  49                 (struct rte_eth_dev *,
  50                  const struct rte_flow_attr *,
  51                  const struct rte_flow_item [],
  52                  const struct rte_flow_action [],
  53                  struct rte_flow_error *);
  54         /** See rte_flow_destroy(). */
  55         int (*destroy)
  56                 (struct rte_eth_dev *,
  57                  struct rte_flow *,
  58                  struct rte_flow_error *);
  59         /** See rte_flow_flush(). */
  60         int (*flush)
  61                 (struct rte_eth_dev *,
  62                  struct rte_flow_error *);
  63         /** See rte_flow_query(). */
  64         int (*query)
  65                 (struct rte_eth_dev *,
  66                  struct rte_flow *,
  67                  const struct rte_flow_action *,
  68                  void *,
  69                  struct rte_flow_error *);
  70         /** See rte_flow_isolate(). */
  71         int (*isolate)
  72                 (struct rte_eth_dev *,
  73                  int,
  74                  struct rte_flow_error *);
  75         /** See rte_flow_dev_dump(). */
  76         int (*dev_dump)
  77                 (struct rte_eth_dev *dev,
  78                  struct rte_flow *flow,
  79                  FILE *file,
  80                  struct rte_flow_error *error);
  81         /** See rte_flow_get_aged_flows() */
  82         int (*get_aged_flows)
  83                 (struct rte_eth_dev *dev,
  84                  void **context,
  85                  uint32_t nb_contexts,
  86                  struct rte_flow_error *err);
  87         /** See rte_flow_action_handle_create() */
  88         struct rte_flow_action_handle *(*action_handle_create)
  89                 (struct rte_eth_dev *dev,
  90                  const struct rte_flow_indir_action_conf *conf,
  91                  const struct rte_flow_action *action,
  92                  struct rte_flow_error *error);
  93         /** See rte_flow_action_handle_destroy() */
  94         int (*action_handle_destroy)
  95                 (struct rte_eth_dev *dev,
  96                  struct rte_flow_action_handle *handle,
  97                  struct rte_flow_error *error);
  98         /** See rte_flow_action_handle_update() */
  99         int (*action_handle_update)
 100                 (struct rte_eth_dev *dev,
 101                  struct rte_flow_action_handle *handle,
 102                  const void *update,
 103                  struct rte_flow_error *error);
 104         /** See rte_flow_action_handle_query() */
 105         int (*action_handle_query)
 106                 (struct rte_eth_dev *dev,
 107                  const struct rte_flow_action_handle *handle,
 108                  void *data,
 109                  struct rte_flow_error *error);
 110         /** See rte_flow_tunnel_decap_set() */
 111         int (*tunnel_decap_set)
 112                 (struct rte_eth_dev *dev,
 113                  struct rte_flow_tunnel *tunnel,
 114                  struct rte_flow_action **pmd_actions,
 115                  uint32_t *num_of_actions,
 116                  struct rte_flow_error *err);
 117         /** See rte_flow_tunnel_match() */
 118         int (*tunnel_match)
 119                 (struct rte_eth_dev *dev,
 120                  struct rte_flow_tunnel *tunnel,
 121                  struct rte_flow_item **pmd_items,
 122                  uint32_t *num_of_items,
 123                  struct rte_flow_error *err);
 124         /** See rte_flow_get_rte_flow_restore_info() */
 125         int (*get_restore_info)
 126                 (struct rte_eth_dev *dev,
 127                  struct rte_mbuf *m,
 128                  struct rte_flow_restore_info *info,
 129                  struct rte_flow_error *err);
 130         /** See rte_flow_action_tunnel_decap_release() */
 131         int (*tunnel_action_decap_release)
 132                 (struct rte_eth_dev *dev,
 133                  struct rte_flow_action *pmd_actions,
 134                  uint32_t num_of_actions,
 135                  struct rte_flow_error *err);
 136         /** See rte_flow_item_release() */
 137         int (*tunnel_item_release)
 138                 (struct rte_eth_dev *dev,
 139                  struct rte_flow_item *pmd_items,
 140                  uint32_t num_of_items,
 141                  struct rte_flow_error *err);
 142 };
 143
 144 /**
 145  * Get generic flow operations structure from a port.
 146  *
 147  * @param port_id
 148  *   Port identifier to query.
 149  * @param[out] error
 150  *   Pointer to flow error structure.
 151  *
 152  * @return
 153  *   The flow operations structure associated with port_id, NULL in case of
 154  *   error, in which case rte_errno is set and the error structure contains
 155  *   additional details.
 156  */
 157 const struct rte_flow_ops *
 158 rte_flow_ops_get(uint16_t port_id, struct rte_flow_error *error);
 159
 160 #ifdef __cplusplus
 161 }
 162 #endif
 163
 164 #endif /* RTE_FLOW_DRIVER_H_ */