1 /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
2 /*
3  * Copyright (c) 2019-2020, Mellanox Technologies inc. All rights reserved.
4  */
5 
6 #ifndef _MLX5_IB_DEVX_H
7 #define _MLX5_IB_DEVX_H
8 
9 #include "mlx5_ib.h"
10 
11 #define MLX5_MAX_DESTROY_INBOX_SIZE_DW MLX5_ST_SZ_DW(delete_fte_in)
12 struct devx_obj {
13 	struct mlx5_ib_dev	*ib_dev;
14 	u64			obj_id;
15 	u32			dinlen; /* destroy inbox length */
16 	u32			dinbox[MLX5_MAX_DESTROY_INBOX_SIZE_DW];
17 	u32			flags;
18 	union {
19 		struct mlx5_ib_mkey	mkey;
20 		struct mlx5_core_dct	core_dct;
21 		struct mlx5_core_cq	core_cq;
22 		u32			flow_counter_bulk_size;
23 	};
24 	struct list_head event_sub; /* holds devx_event_subscription entries */
25 };
26 #if IS_ENABLED(CONFIG_INFINIBAND_USER_ACCESS)
27 int mlx5_ib_devx_create(struct mlx5_ib_dev *dev, bool is_user);
28 void mlx5_ib_devx_destroy(struct mlx5_ib_dev *dev, u16 uid);
29 int mlx5_ib_devx_init(struct mlx5_ib_dev *dev);
30 void mlx5_ib_devx_cleanup(struct mlx5_ib_dev *dev);
31 #else
mlx5_ib_devx_create(struct mlx5_ib_dev * dev,bool is_user)32 static inline int mlx5_ib_devx_create(struct mlx5_ib_dev *dev, bool is_user)
33 {
34 	return -EOPNOTSUPP;
35 }
mlx5_ib_devx_destroy(struct mlx5_ib_dev * dev,u16 uid)36 static inline void mlx5_ib_devx_destroy(struct mlx5_ib_dev *dev, u16 uid) {}
mlx5_ib_devx_init(struct mlx5_ib_dev * dev)37 static inline int mlx5_ib_devx_init(struct mlx5_ib_dev *dev)
38 {
39 	return 0;
40 }
mlx5_ib_devx_cleanup(struct mlx5_ib_dev * dev)41 static inline void mlx5_ib_devx_cleanup(struct mlx5_ib_dev *dev)
42 {
43 }
44 #endif
45 #endif /* _MLX5_IB_DEVX_H */
46