1/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
 2/*
 3 * Copyright (c) 2021, Mellanox Technologies inc. All rights reserved.
 4 */
 5
 6#ifndef _MLX5_IB_DM_H
 7#define _MLX5_IB_DM_H
 8
 9#include "mlx5_ib.h"
10
11extern const struct ib_device_ops mlx5_ib_dev_dm_ops;
12extern const struct uapi_definition mlx5_ib_dm_defs[];
13
14struct mlx5_ib_dm {
15	struct ib_dm		ibdm;
16	u32			type;
17	phys_addr_t		dev_addr;
18	size_t			size;
19};
20
21struct mlx5_ib_dm_op_entry {
22	struct mlx5_user_mmap_entry	mentry;
23	phys_addr_t			op_addr;
24	struct mlx5_ib_dm_memic		*dm;
25	u8				op;
26};
27
28struct mlx5_ib_dm_memic {
29	struct mlx5_ib_dm           base;
30	struct mlx5_user_mmap_entry mentry;
31	struct xarray               ops;
32	struct mutex                ops_xa_lock;
33	struct kref                 ref;
34	size_t                      req_length;
35};
36
37struct mlx5_ib_dm_icm {
38	struct mlx5_ib_dm      base;
39	u32                    obj_id;
40};
41
42static inline struct mlx5_ib_dm *to_mdm(struct ib_dm *ibdm)
43{
44	return container_of(ibdm, struct mlx5_ib_dm, ibdm);
45}
46
47static inline struct mlx5_ib_dm_memic *to_memic(struct ib_dm *ibdm)
48{
49	return container_of(ibdm, struct mlx5_ib_dm_memic, base.ibdm);
50}
51
52static inline struct mlx5_ib_dm_icm *to_icm(struct ib_dm *ibdm)
53{
54	return container_of(ibdm, struct mlx5_ib_dm_icm, base.ibdm);
55}
56
57struct ib_dm *mlx5_ib_alloc_dm(struct ib_device *ibdev,
58			       struct ib_ucontext *context,
59			       struct ib_dm_alloc_attr *attr,
60			       struct uverbs_attr_bundle *attrs);
61void mlx5_ib_dm_mmap_free(struct mlx5_ib_dev *dev,
62			  struct mlx5_user_mmap_entry *mentry);
63void mlx5_cmd_dealloc_memic(struct mlx5_dm *dm, phys_addr_t addr,
64			    u64 length);
65void mlx5_cmd_dealloc_memic_op(struct mlx5_dm *dm, phys_addr_t addr,
66			       u8 operation);
67
68#endif /* _MLX5_IB_DM_H */