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