| 1 | /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */ |
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| 2 | /* |
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| 3 | * Copyright (c) 2021, Mellanox Technologies inc. All rights reserved. |
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| 4 | */ |
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| 5 | |
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| 6 | #ifndef _MLX5_IB_DM_H |
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| 7 | #define _MLX5_IB_DM_H |
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| 8 | |
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| 9 | #include "mlx5_ib.h" |
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| 10 | |
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| 11 | extern const struct ib_device_ops mlx5_ib_dev_dm_ops; |
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| 12 | extern const struct uapi_definition mlx5_ib_dm_defs[]; |
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| 13 | |
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| 14 | struct mlx5_ib_dm { |
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| 15 | struct ib_dm ibdm; |
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| 16 | u32 type; |
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| 17 | phys_addr_t dev_addr; |
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| 18 | size_t size; |
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| 19 | }; |
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| 20 | |
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| 21 | struct mlx5_ib_dm_op_entry { |
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| 22 | struct mlx5_user_mmap_entry mentry; |
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| 23 | phys_addr_t op_addr; |
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| 24 | struct mlx5_ib_dm_memic *dm; |
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| 25 | u8 op; |
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| 26 | }; |
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| 27 | |
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| 28 | struct mlx5_ib_dm_memic { |
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| 29 | struct mlx5_ib_dm base; |
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| 30 | struct mlx5_user_mmap_entry mentry; |
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| 31 | struct xarray ops; |
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| 32 | struct mutex ops_xa_lock; |
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| 33 | struct kref ref; |
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| 34 | size_t req_length; |
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| 35 | }; |
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| 36 | |
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| 37 | struct mlx5_ib_dm_icm { |
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| 38 | struct mlx5_ib_dm base; |
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| 39 | u32 obj_id; |
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| 40 | }; |
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| 41 | |
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| 42 | static inline struct mlx5_ib_dm *to_mdm(struct ib_dm *ibdm) |
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| 43 | { |
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| 44 | return container_of(ibdm, struct mlx5_ib_dm, ibdm); |
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| 45 | } |
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| 46 | |
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| 47 | static inline struct mlx5_ib_dm_memic *to_memic(struct ib_dm *ibdm) |
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| 48 | { |
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| 49 | return container_of(ibdm, struct mlx5_ib_dm_memic, base.ibdm); |
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| 50 | } |
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| 51 | |
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| 52 | static inline struct mlx5_ib_dm_icm *to_icm(struct ib_dm *ibdm) |
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| 53 | { |
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| 54 | return container_of(ibdm, struct mlx5_ib_dm_icm, base.ibdm); |
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| 55 | } |
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| 56 | |
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| 57 | struct ib_dm *mlx5_ib_alloc_dm(struct ib_device *ibdev, |
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| 58 | struct ib_ucontext *context, |
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| 59 | struct ib_dm_alloc_attr *attr, |
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| 60 | struct uverbs_attr_bundle *attrs); |
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| 61 | void mlx5_ib_dm_mmap_free(struct mlx5_ib_dev *dev, |
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| 62 | struct mlx5_user_mmap_entry *mentry); |
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| 63 | void mlx5_cmd_dealloc_memic(struct mlx5_dm *dm, phys_addr_t addr, |
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| 64 | u64 length); |
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| 65 | void mlx5_cmd_dealloc_memic_op(struct mlx5_dm *dm, phys_addr_t addr, |
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| 66 | u8 operation); |
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| 67 | |
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| 68 | #endif /* _MLX5_IB_DM_H */ |
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| 69 | |
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