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18731642d4
Expose UAPI to query MEMIC DM, this will let user space application that didn't allocate the DM but has access to by owning the matching command FD to retrieve its information. Link: https://lore.kernel.org/r/20210411122924.60230-8-leon@kernel.org Signed-off-by: Maor Gottlieb <maorg@nvidia.com> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
68 lines
1.7 KiB
C
68 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
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/*
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* Copyright (c) 2021, Mellanox Technologies inc. All rights reserved.
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*/
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#ifndef _MLX5_IB_DM_H
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#define _MLX5_IB_DM_H
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#include "mlx5_ib.h"
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extern const struct ib_device_ops mlx5_ib_dev_dm_ops;
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extern const struct uapi_definition mlx5_ib_dm_defs[];
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struct mlx5_ib_dm {
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struct ib_dm ibdm;
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u32 type;
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phys_addr_t dev_addr;
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size_t size;
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};
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struct mlx5_ib_dm_op_entry {
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struct mlx5_user_mmap_entry mentry;
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phys_addr_t op_addr;
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struct mlx5_ib_dm_memic *dm;
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u8 op;
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};
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struct mlx5_ib_dm_memic {
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struct mlx5_ib_dm base;
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struct mlx5_user_mmap_entry mentry;
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struct xarray ops;
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struct mutex ops_xa_lock;
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struct kref ref;
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size_t req_length;
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};
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struct mlx5_ib_dm_icm {
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struct mlx5_ib_dm base;
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u32 obj_id;
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};
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static inline struct mlx5_ib_dm *to_mdm(struct ib_dm *ibdm)
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{
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return container_of(ibdm, struct mlx5_ib_dm, ibdm);
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}
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static inline struct mlx5_ib_dm_memic *to_memic(struct ib_dm *ibdm)
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{
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return container_of(ibdm, struct mlx5_ib_dm_memic, base.ibdm);
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}
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static inline struct mlx5_ib_dm_icm *to_icm(struct ib_dm *ibdm)
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{
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return container_of(ibdm, struct mlx5_ib_dm_icm, base.ibdm);
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}
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struct ib_dm *mlx5_ib_alloc_dm(struct ib_device *ibdev,
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struct ib_ucontext *context,
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struct ib_dm_alloc_attr *attr,
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struct uverbs_attr_bundle *attrs);
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void mlx5_ib_dm_mmap_free(struct mlx5_ib_dev *dev,
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struct mlx5_user_mmap_entry *mentry);
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void mlx5_cmd_dealloc_memic(struct mlx5_dm *dm, phys_addr_t addr,
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u64 length);
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void mlx5_cmd_dealloc_memic_op(struct mlx5_dm *dm, phys_addr_t addr,
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u8 operation);
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#endif /* _MLX5_IB_DM_H */
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