1 /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
2 /* Copyright (c) 2020 Mellanox Technologies */
3
4 #ifndef __MLX5E_EN_MOD_HDR_H__
5 #define __MLX5E_EN_MOD_HDR_H__
6
7 #include <linux/hashtable.h>
8 #include <linux/mlx5/fs.h>
9
10 #define MLX5_MH_ACT_SZ MLX5_UN_SZ_BYTES(set_add_copy_action_in_auto)
11
12 struct mlx5e_mod_hdr_handle;
13
14 struct mlx5e_tc_mod_hdr_acts {
15 int num_actions;
16 int max_actions;
17 bool is_static;
18 void *actions;
19 };
20
21 #define DECLARE_MOD_HDR_ACTS_ACTIONS(name, len) \
22 u8 name[len][MLX5_MH_ACT_SZ] = {}
23
24 #define DECLARE_MOD_HDR_ACTS(name, acts_arr) \
25 struct mlx5e_tc_mod_hdr_acts name = { \
26 .max_actions = ARRAY_SIZE(acts_arr), \
27 .is_static = true, \
28 .actions = acts_arr, \
29 }
30
31 char *mlx5e_mod_hdr_alloc(struct mlx5_core_dev *mdev, int namespace,
32 struct mlx5e_tc_mod_hdr_acts *mod_hdr_acts);
33 void mlx5e_mod_hdr_dealloc(struct mlx5e_tc_mod_hdr_acts *mod_hdr_acts);
34 char *mlx5e_mod_hdr_get_item(struct mlx5e_tc_mod_hdr_acts *mod_hdr_acts, int pos);
35
36 struct mlx5e_mod_hdr_handle *
37 mlx5e_mod_hdr_attach(struct mlx5_core_dev *mdev,
38 struct mod_hdr_tbl *tbl,
39 enum mlx5_flow_namespace_type namespace,
40 struct mlx5e_tc_mod_hdr_acts *mod_hdr_acts);
41 void mlx5e_mod_hdr_detach(struct mlx5_core_dev *mdev,
42 struct mod_hdr_tbl *tbl,
43 struct mlx5e_mod_hdr_handle *mh);
44 struct mlx5_modify_hdr *mlx5e_mod_hdr_get(struct mlx5e_mod_hdr_handle *mh);
45
46 void mlx5e_mod_hdr_tbl_init(struct mod_hdr_tbl *tbl);
47 void mlx5e_mod_hdr_tbl_destroy(struct mod_hdr_tbl *tbl);
48
mlx5e_mod_hdr_max_actions(struct mlx5_core_dev * mdev,int namespace)49 static inline int mlx5e_mod_hdr_max_actions(struct mlx5_core_dev *mdev, int namespace)
50 {
51 if (namespace == MLX5_FLOW_NAMESPACE_FDB) /* FDB offloading */
52 return MLX5_CAP_ESW_FLOWTABLE_FDB(mdev, max_modify_header_actions);
53 else /* namespace is MLX5_FLOW_NAMESPACE_KERNEL - NIC offloading */
54 return MLX5_CAP_FLOWTABLE_NIC_RX(mdev, max_modify_header_actions);
55 }
56
57 #endif /* __MLX5E_EN_MOD_HDR_H__ */
58