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);
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);
31#else
32static inline int mlx5_ib_devx_create(struct mlx5_ib_dev *dev, bool is_user)
33{
34 return -EOPNOTSUPP;
35}
36static inline void mlx5_ib_devx_destroy(struct mlx5_ib_dev *dev, u16 uid) {}
37static inline int mlx5_ib_devx_init(struct mlx5_ib_dev *dev)
38{
39 return 0;
40}
41static inline void mlx5_ib_devx_cleanup(struct mlx5_ib_dev *dev)
42{
43}
44#endif
45#endif /* _MLX5_IB_DEVX_H */
46

source code of linux/drivers/infiniband/hw/mlx5/devx.h