devx.h

 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)
12struct 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)
27int mlx5_ib_devx_create(struct mlx5_ib_dev *dev, bool is_user, u64 req_ucaps);
28void mlx5_ib_devx_destroy(struct mlx5_ib_dev *dev, u16 uid);
29int mlx5_ib_devx_init(struct mlx5_ib_dev *dev);
30void mlx5_ib_devx_cleanup(struct mlx5_ib_dev *dev);
31void mlx5_ib_ufile_hw_cleanup(struct ib_uverbs_file *ufile);
32#else
33static inline int mlx5_ib_devx_create(struct mlx5_ib_dev *dev, bool is_user,
34				      u64 req_ucaps)
35{
36	return -EOPNOTSUPP;
37}
38static inline void mlx5_ib_devx_destroy(struct mlx5_ib_dev *dev, u16 uid) {}
39static inline int mlx5_ib_devx_init(struct mlx5_ib_dev *dev)
40{
41	return 0;
42}
43static inline void mlx5_ib_devx_cleanup(struct mlx5_ib_dev *dev)
44{
45}
46static inline void mlx5_ib_ufile_hw_cleanup(struct ib_uverbs_file *ufile)
47{
48}
49#endif
50#endif /* _MLX5_IB_DEVX_H */