drivers/net/sfc/sfc_flow_tunnel.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  *
   3  * Copyright(c) 2021 Xilinx, Inc.
   4  */
   5
   6 #ifndef _SFC_FLOW_TUNNEL_H
   7 #define _SFC_FLOW_TUNNEL_H
   8
   9 #include <limits.h>
  10 #include <stdbool.h>
  11 #include <stdint.h>
  12
  13 #include <rte_flow.h>
  14
  15 #include "efx.h"
  16
  17 #ifdef __cplusplus
  18 extern "C" {
  19 #endif
  20
  21 /** Flow Tunnel (FT) SW entry ID */
  22 typedef uint8_t sfc_ft_id_t;
  23
  24 #define SFC_FT_TUNNEL_MARK_BITS \
  25         (sizeof(sfc_ft_id_t) * CHAR_BIT)
  26
  27 #define SFC_FT_USER_MARK_BITS \
  28         (sizeof(uint32_t) * CHAR_BIT - SFC_FT_TUNNEL_MARK_BITS)
  29
  30 #define SFC_FT_USER_MARK_MASK \
  31         RTE_LEN2MASK(SFC_FT_USER_MARK_BITS, uint32_t)
  32
  33 #define SFC_FT_GET_TUNNEL_MARK(_mark) \
  34         ((_mark) >> SFC_FT_USER_MARK_BITS)
  35
  36 #define SFC_FT_TUNNEL_MARK_INVALID      (0)
  37
  38 #define SFC_FT_TUNNEL_MARK_TO_ID(_tunnel_mark) \
  39         ((_tunnel_mark) - 1)
  40
  41 #define SFC_FT_ID_TO_TUNNEL_MARK(_id) \
  42         ((_id) + 1)
  43
  44 #define SFC_FT_ID_TO_MARK(_id) \
  45         (SFC_FT_ID_TO_TUNNEL_MARK(_id) << SFC_FT_USER_MARK_BITS)
  46
  47 #define SFC_FT_GET_USER_MARK(_mark) \
  48         ((_mark) & SFC_FT_USER_MARK_MASK)
  49
  50 #define SFC_FT_MAX_NTUNNELS \
  51         (RTE_LEN2MASK(SFC_FT_TUNNEL_MARK_BITS, uint8_t) - 1)
  52
  53 struct sfc_flow_tunnel {
  54         bool                            jump_rule_is_set;
  55         efx_tunnel_protocol_t           encap_type;
  56         struct rte_flow_tunnel          rte_tunnel;
  57         unsigned int                    refcnt;
  58         sfc_ft_id_t                     id;
  59
  60         struct rte_flow_action_mark     action_mark;
  61         struct rte_flow_action          action;
  62
  63         struct rte_flow_item_mark       item_mark_v;
  64         struct rte_flow_item_mark       item_mark_m;
  65         struct rte_flow_item            item;
  66
  67         uint64_t                        reset_jump_hit_counter;
  68         uint64_t                        group_hit_counter;
  69 };
  70
  71 struct sfc_adapter;
  72
  73 bool sfc_flow_tunnel_is_supported(struct sfc_adapter *sa);
  74
  75 bool sfc_flow_tunnel_is_active(struct sfc_adapter *sa);
  76
  77 struct sfc_flow_tunnel *sfc_flow_tunnel_pick(struct sfc_adapter *sa,
  78                                              uint32_t ft_mark);
  79
  80 int sfc_flow_tunnel_detect_jump_rule(struct sfc_adapter *sa,
  81                                      const struct rte_flow_action *actions,
  82                                      struct sfc_flow_spec_mae *spec,
  83                                      struct rte_flow_error *error);
  84
  85 int sfc_flow_tunnel_decap_set(struct rte_eth_dev *dev,
  86                               struct rte_flow_tunnel *tunnel,
  87                               struct rte_flow_action **pmd_actions,
  88                               uint32_t *num_of_actions,
  89                               struct rte_flow_error *err);
  90
  91 int sfc_flow_tunnel_match(struct rte_eth_dev *dev,
  92                           struct rte_flow_tunnel *tunnel,
  93                           struct rte_flow_item **pmd_items,
  94                           uint32_t *num_of_items,
  95                           struct rte_flow_error *err);
  96
  97 int sfc_flow_tunnel_item_release(struct rte_eth_dev *dev,
  98                                  struct rte_flow_item *pmd_items,
  99                                  uint32_t num_items,
 100                                  struct rte_flow_error *err);
 101
 102 int sfc_flow_tunnel_action_decap_release(struct rte_eth_dev *dev,
 103                                          struct rte_flow_action *pmd_actions,
 104                                          uint32_t num_actions,
 105                                          struct rte_flow_error *err);
 106
 107 int sfc_flow_tunnel_get_restore_info(struct rte_eth_dev *dev,
 108                                      struct rte_mbuf *m,
 109                                      struct rte_flow_restore_info *info,
 110                                      struct rte_flow_error *err);
 111
 112 void sfc_flow_tunnel_reset_hit_counters(struct sfc_adapter *sa);
 113
 114 #ifdef __cplusplus
 115 }
 116 #endif
 117 #endif /* _SFC_FLOW_TUNNEL_H */