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 11 extern const struct ib_device_ops mlx5_ib_dev_dm_ops; 12 extern const struct uapi_definition mlx5_ib_dm_defs[]; 13 14 struct mlx5_ib_dm { 15 struct ib_dm ibdm; 16 u32 type; 17 phys_addr_t dev_addr; 18 size_t size; 19 }; 20 21 struct 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 28 struct 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 37 struct mlx5_ib_dm_icm { 38 struct mlx5_ib_dm base; 39 u32 obj_id; 40 }; 41 42 static inline struct mlx5_ib_dm *to_mdm(struct ib_dm *ibdm) 43 { 44 return container_of(ibdm, struct mlx5_ib_dm, ibdm); 45 } 46 47 static 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 52 static 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 57 struct 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); 61 void mlx5_ib_dm_mmap_free(struct mlx5_ib_dev *dev, 62 struct mlx5_user_mmap_entry *mentry); 63 void mlx5_cmd_dealloc_memic(struct mlx5_dm *dm, phys_addr_t addr, 64 u64 length); 65 void mlx5_cmd_dealloc_memic_op(struct mlx5_dm *dm, phys_addr_t addr, 66 u8 operation); 67 68 #endif /* _MLX5_IB_DM_H */ 69