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__ */
102