1 /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */ 2 /* Copyright (c) 2018 Mellanox Technologies */ 3 4 #ifndef __LIB_MLX5_DEVCOM_H__ 5 #define __LIB_MLX5_DEVCOM_H__ 6 7 #include <linux/mlx5/driver.h> 8 9 enum mlx5_devom_match_flags { 10 MLX5_DEVCOM_MATCH_FLAGS_NS = BIT(0), 11 }; 12 13 #define MLX5_DEVCOM_MATCH_KEY_MAX 32 14 union mlx5_devcom_match_key { 15 u64 val; 16 u8 buf[MLX5_DEVCOM_MATCH_KEY_MAX]; 17 }; 18 19 struct mlx5_devcom_match_attr { 20 u32 flags; 21 union mlx5_devcom_match_key key; 22 struct net *net; 23 }; 24 25 enum mlx5_devcom_component { 26 MLX5_DEVCOM_ESW_OFFLOADS, 27 MLX5_DEVCOM_MPV, 28 MLX5_DEVCOM_HCA_PORTS, 29 MLX5_DEVCOM_SD_GROUP, 30 MLX5_DEVCOM_SHARED_CLOCK, 31 MLX5_DEVCOM_NUM_COMPONENTS, 32 }; 33 34 typedef int (*mlx5_devcom_event_handler_t)(int event, 35 void *my_data, 36 void *event_data); 37 38 struct mlx5_devcom_dev *mlx5_devcom_register_device(struct mlx5_core_dev *dev); 39 void mlx5_devcom_unregister_device(struct mlx5_devcom_dev *devc); 40 41 struct mlx5_devcom_comp_dev * 42 mlx5_devcom_register_component(struct mlx5_devcom_dev *devc, 43 enum mlx5_devcom_component id, 44 const struct mlx5_devcom_match_attr *attr, 45 mlx5_devcom_event_handler_t handler, 46 void *data); 47 void mlx5_devcom_unregister_component(struct mlx5_devcom_comp_dev *devcom); 48 49 int mlx5_devcom_send_event(struct mlx5_devcom_comp_dev *devcom, 50 int event, int rollback_event, 51 void *event_data); 52 int mlx5_devcom_comp_get_size(struct mlx5_devcom_comp_dev *devcom); 53 54 void mlx5_devcom_comp_set_ready(struct mlx5_devcom_comp_dev *devcom, bool ready); 55 bool mlx5_devcom_comp_is_ready(struct mlx5_devcom_comp_dev *devcom); 56 57 bool mlx5_devcom_for_each_peer_begin(struct mlx5_devcom_comp_dev *devcom); 58 void mlx5_devcom_for_each_peer_end(struct mlx5_devcom_comp_dev *devcom); 59 void *mlx5_devcom_get_next_peer_data(struct mlx5_devcom_comp_dev *devcom, 60 struct mlx5_devcom_comp_dev **pos); 61 62 #define mlx5_devcom_for_each_peer_entry(devcom, data, pos) \ 63 for (pos = NULL, data = mlx5_devcom_get_next_peer_data(devcom, &pos); \ 64 data; \ 65 data = mlx5_devcom_get_next_peer_data(devcom, &pos)) 66 67 void *mlx5_devcom_get_next_peer_data_rcu(struct mlx5_devcom_comp_dev *devcom, 68 struct mlx5_devcom_comp_dev **pos); 69 70 #define mlx5_devcom_for_each_peer_entry_rcu(devcom, data, pos) \ 71 for (pos = NULL, data = mlx5_devcom_get_next_peer_data_rcu(devcom, &pos); \ 72 data; \ 73 data = mlx5_devcom_get_next_peer_data_rcu(devcom, &pos)) 74 75 void mlx5_devcom_comp_lock(struct mlx5_devcom_comp_dev *devcom); 76 void mlx5_devcom_comp_unlock(struct mlx5_devcom_comp_dev *devcom); 77 int mlx5_devcom_comp_trylock(struct mlx5_devcom_comp_dev *devcom); 78 79 #endif /* __LIB_MLX5_DEVCOM_H__ */ 80