LXR linux/drivers/net/ethernet/mellanox/mlx5/core/lib/fs

   1/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
   2/* Copyright (c) 2020 Mellanox Technologies. */
   3
   4#ifndef __ML5_ESW_CHAINS_H__
   5#define __ML5_ESW_CHAINS_H__
   6
   7#include <linux/mlx5/fs.h>
   8
   9struct mlx5_fs_chains;
  10struct mlx5_mapped_obj;
  11
  12enum mlx5_chains_flags {
  13        MLX5_CHAINS_AND_PRIOS_SUPPORTED = BIT(0),
  14        MLX5_CHAINS_IGNORE_FLOW_LEVEL_SUPPORTED = BIT(1),
  15        MLX5_CHAINS_FT_TUNNEL_SUPPORTED = BIT(2),
  16};
  17
  18struct mlx5_chains_attr {
  19        enum mlx5_flow_namespace_type ns;
  20        u32 flags;
  21        u32 max_ft_sz;
  22        u32 max_grp_num;
  23        struct mlx5_flow_table *default_ft;
  24        struct mapping_ctx *mapping;
  25};
  26
  27#if IS_ENABLED(CONFIG_MLX5_CLS_ACT)
  28
  29bool
  30mlx5_chains_prios_supported(struct mlx5_fs_chains *chains);
  31bool mlx5_chains_ignore_flow_level_supported(struct mlx5_fs_chains *chains);
  32bool
  33mlx5_chains_backwards_supported(struct mlx5_fs_chains *chains);
  34u32
  35mlx5_chains_get_prio_range(struct mlx5_fs_chains *chains);
  36u32
  37mlx5_chains_get_chain_range(struct mlx5_fs_chains *chains);
  38u32
  39mlx5_chains_get_nf_ft_chain(struct mlx5_fs_chains *chains);
  40
  41struct mlx5_flow_table *
  42mlx5_chains_get_table(struct mlx5_fs_chains *chains, u32 chain, u32 prio,
  43                      u32 level);
  44void
  45mlx5_chains_put_table(struct mlx5_fs_chains *chains, u32 chain, u32 prio,
  46                      u32 level);
  47
  48struct mlx5_flow_table *
  49mlx5_chains_get_tc_end_ft(struct mlx5_fs_chains *chains);
  50
  51struct mlx5_flow_table *
  52mlx5_chains_create_global_table(struct mlx5_fs_chains *chains);
  53void
  54mlx5_chains_destroy_global_table(struct mlx5_fs_chains *chains,
  55                                 struct mlx5_flow_table *ft);
  56
  57int
  58mlx5_chains_get_chain_mapping(struct mlx5_fs_chains *chains, u32 chain,
  59                              u32 *chain_mapping);
  60int
  61mlx5_chains_put_chain_mapping(struct mlx5_fs_chains *chains,
  62                              u32 chain_mapping);
  63
  64struct mlx5_fs_chains *
  65mlx5_chains_create(struct mlx5_core_dev *dev, struct mlx5_chains_attr *attr);
  66void mlx5_chains_destroy(struct mlx5_fs_chains *chains);
  67
  68void
  69mlx5_chains_set_end_ft(struct mlx5_fs_chains *chains,
  70                       struct mlx5_flow_table *ft);
  71
  72#else /* CONFIG_MLX5_CLS_ACT */
  73
  74static inline bool
  75mlx5_chains_ignore_flow_level_supported(struct mlx5_fs_chains *chains)
  76{ return false; }
  77
  78static inline struct mlx5_flow_table *
  79mlx5_chains_get_table(struct mlx5_fs_chains *chains, u32 chain, u32 prio,
  80                      u32 level) { return ERR_PTR(-EOPNOTSUPP); }
  81static inline void
  82mlx5_chains_put_table(struct mlx5_fs_chains *chains, u32 chain, u32 prio,
  83                      u32 level) {};
  84
  85static inline struct mlx5_flow_table *
  86mlx5_chains_get_tc_end_ft(struct mlx5_fs_chains *chains) { return ERR_PTR(-EOPNOTSUPP); }
  87
  88static inline struct mlx5_fs_chains *
  89mlx5_chains_create(struct mlx5_core_dev *dev, struct mlx5_chains_attr *attr)
  90{ return NULL; }
  91static inline void
  92mlx5_chains_destroy(struct mlx5_fs_chains *chains) {};
  93
  94#endif /* CONFIG_MLX5_CLS_ACT */
  95
  96#endif /* __ML5_ESW_CHAINS_H__ */
  97