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_devcom_component { 10 MLX5_DEVCOM_ESW_OFFLOADS, 11 MLX5_DEVCOM_MPV, 12 MLX5_DEVCOM_HCA_PORTS, 13 MLX5_DEVCOM_NUM_COMPONENTS, 14 }; 15 16 typedef int (*mlx5_devcom_event_handler_t)(int event, 17 void *my_data, 18 void *event_data); 19 20 struct mlx5_devcom_dev *mlx5_devcom_register_device(struct mlx5_core_dev *dev); 21 void mlx5_devcom_unregister_device(struct mlx5_devcom_dev *devc); 22 23 struct mlx5_devcom_comp_dev * 24 mlx5_devcom_register_component(struct mlx5_devcom_dev *devc, 25 enum mlx5_devcom_component id, 26 u64 key, 27 mlx5_devcom_event_handler_t handler, 28 void *data); 29 void mlx5_devcom_unregister_component(struct mlx5_devcom_comp_dev *devcom); 30 31 int mlx5_devcom_send_event(struct mlx5_devcom_comp_dev *devcom, 32 int event, int rollback_event, 33 void *event_data); 34 int mlx5_devcom_comp_get_size(struct mlx5_devcom_comp_dev *devcom); 35 36 void mlx5_devcom_comp_set_ready(struct mlx5_devcom_comp_dev *devcom, bool ready); 37 bool mlx5_devcom_comp_is_ready(struct mlx5_devcom_comp_dev *devcom); 38 39 bool mlx5_devcom_for_each_peer_begin(struct mlx5_devcom_comp_dev *devcom); 40 void mlx5_devcom_for_each_peer_end(struct mlx5_devcom_comp_dev *devcom); 41 void *mlx5_devcom_get_next_peer_data(struct mlx5_devcom_comp_dev *devcom, 42 struct mlx5_devcom_comp_dev **pos); 43 44 #define mlx5_devcom_for_each_peer_entry(devcom, data, pos) \ 45 for (pos = NULL, data = mlx5_devcom_get_next_peer_data(devcom, &pos); \ 46 data; \ 47 data = mlx5_devcom_get_next_peer_data(devcom, &pos)) 48 49 void *mlx5_devcom_get_next_peer_data_rcu(struct mlx5_devcom_comp_dev *devcom, 50 struct mlx5_devcom_comp_dev **pos); 51 52 #define mlx5_devcom_for_each_peer_entry_rcu(devcom, data, pos) \ 53 for (pos = NULL, data = mlx5_devcom_get_next_peer_data_rcu(devcom, &pos); \ 54 data; \ 55 data = mlx5_devcom_get_next_peer_data_rcu(devcom, &pos)) 56 57 void mlx5_devcom_comp_lock(struct mlx5_devcom_comp_dev *devcom); 58 void mlx5_devcom_comp_unlock(struct mlx5_devcom_comp_dev *devcom); 59 int mlx5_devcom_comp_trylock(struct mlx5_devcom_comp_dev *devcom); 60 61 #endif /* __LIB_MLX5_DEVCOM_H__ */ 62