fs_chains.h

  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	int fs_base_prio;
 21	int fs_base_level;
 22	u32 flags;
 23	u32 max_grp_num;
 24	struct mlx5_flow_table *default_ft;
 25	struct mapping_ctx *mapping;
 26};
 27
 28#if IS_ENABLED(CONFIG_MLX5_CLS_ACT)
 29
 30bool
 31mlx5_chains_prios_supported(struct mlx5_fs_chains *chains);
 32bool mlx5_chains_ignore_flow_level_supported(struct mlx5_fs_chains *chains);
 33bool
 34mlx5_chains_backwards_supported(struct mlx5_fs_chains *chains);
 35u32
 36mlx5_chains_get_prio_range(struct mlx5_fs_chains *chains);
 37u32
 38mlx5_chains_get_chain_range(struct mlx5_fs_chains *chains);
 39u32
 40mlx5_chains_get_nf_ft_chain(struct mlx5_fs_chains *chains);
 41
 42struct mlx5_flow_table *
 43mlx5_chains_get_table(struct mlx5_fs_chains *chains, u32 chain, u32 prio,
 44		      u32 level);
 45void
 46mlx5_chains_put_table(struct mlx5_fs_chains *chains, u32 chain, u32 prio,
 47		      u32 level);
 48
 49struct mlx5_flow_table *
 50mlx5_chains_get_tc_end_ft(struct mlx5_fs_chains *chains);
 51
 52struct mlx5_flow_table *
 53mlx5_chains_create_global_table(struct mlx5_fs_chains *chains);
 54void
 55mlx5_chains_destroy_global_table(struct mlx5_fs_chains *chains,
 56				 struct mlx5_flow_table *ft);
 57
 58int
 59mlx5_chains_get_chain_mapping(struct mlx5_fs_chains *chains, u32 chain,
 60			      u32 *chain_mapping);
 61int
 62mlx5_chains_put_chain_mapping(struct mlx5_fs_chains *chains,
 63			      u32 chain_mapping);
 64
 65struct mlx5_fs_chains *
 66mlx5_chains_create(struct mlx5_core_dev *dev, struct mlx5_chains_attr *attr);
 67void mlx5_chains_destroy(struct mlx5_fs_chains *chains);
 68
 69void
 70mlx5_chains_set_end_ft(struct mlx5_fs_chains *chains,
 71		       struct mlx5_flow_table *ft);
 72void
 73mlx5_chains_print_info(struct mlx5_fs_chains *chains);
 74
 75#else /* CONFIG_MLX5_CLS_ACT */
 76
 77static inline bool
 78mlx5_chains_ignore_flow_level_supported(struct mlx5_fs_chains *chains)
 79{ return false; }
 80
 81static inline struct mlx5_flow_table *
 82mlx5_chains_get_table(struct mlx5_fs_chains *chains, u32 chain, u32 prio,
 83		      u32 level) { return ERR_PTR(-EOPNOTSUPP); }
 84static inline void
 85mlx5_chains_put_table(struct mlx5_fs_chains *chains, u32 chain, u32 prio,
 86		      u32 level) {};
 87
 88static inline struct mlx5_flow_table *
 89mlx5_chains_get_tc_end_ft(struct mlx5_fs_chains *chains) { return ERR_PTR(-EOPNOTSUPP); }
 90
 91static inline struct mlx5_fs_chains *
 92mlx5_chains_create(struct mlx5_core_dev *dev, struct mlx5_chains_attr *attr)
 93{ return NULL; }
 94static inline void
 95mlx5_chains_destroy(struct mlx5_fs_chains *chains) {}
 96static inline void
 97mlx5_chains_print_info(struct mlx5_fs_chains *chains) {}
 98
 99#endif /* CONFIG_MLX5_CLS_ACT */
100
101#endif /* __ML5_ESW_CHAINS_H__ */