diff options
Diffstat (limited to 'drivers/infiniband/hw/mlx5/dm.h')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/dm.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx5/dm.h b/drivers/infiniband/hw/mlx5/dm.h new file mode 100644 index 000000000000..9674a80d8d70 --- /dev/null +++ b/drivers/infiniband/hw/mlx5/dm.h @@ -0,0 +1,68 @@ +/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */ +/* + * Copyright (c) 2021, Mellanox Technologies inc. All rights reserved. + */ + +#ifndef _MLX5_IB_DM_H +#define _MLX5_IB_DM_H + +#include "mlx5_ib.h" + +extern const struct ib_device_ops mlx5_ib_dev_dm_ops; +extern const struct uapi_definition mlx5_ib_dm_defs[]; + +struct mlx5_ib_dm { + struct ib_dm ibdm; + u32 type; + phys_addr_t dev_addr; + size_t size; +}; + +struct mlx5_ib_dm_op_entry { + struct mlx5_user_mmap_entry mentry; + phys_addr_t op_addr; + struct mlx5_ib_dm_memic *dm; + u8 op; +}; + +struct mlx5_ib_dm_memic { + struct mlx5_ib_dm base; + struct mlx5_user_mmap_entry mentry; + struct xarray ops; + struct mutex ops_xa_lock; + struct kref ref; + size_t req_length; +}; + +struct mlx5_ib_dm_icm { + struct mlx5_ib_dm base; + u32 obj_id; +}; + +static inline struct mlx5_ib_dm *to_mdm(struct ib_dm *ibdm) +{ + return container_of(ibdm, struct mlx5_ib_dm, ibdm); +} + +static inline struct mlx5_ib_dm_memic *to_memic(struct ib_dm *ibdm) +{ + return container_of(ibdm, struct mlx5_ib_dm_memic, base.ibdm); +} + +static inline struct mlx5_ib_dm_icm *to_icm(struct ib_dm *ibdm) +{ + return container_of(ibdm, struct mlx5_ib_dm_icm, base.ibdm); +} + +struct ib_dm *mlx5_ib_alloc_dm(struct ib_device *ibdev, + struct ib_ucontext *context, + struct ib_dm_alloc_attr *attr, + struct uverbs_attr_bundle *attrs); +void mlx5_ib_dm_mmap_free(struct mlx5_ib_dev *dev, + struct mlx5_user_mmap_entry *mentry); +void mlx5_cmd_dealloc_memic(struct mlx5_dm *dm, phys_addr_t addr, + u64 length); +void mlx5_cmd_dealloc_memic_op(struct mlx5_dm *dm, phys_addr_t addr, + u8 operation); + +#endif /* _MLX5_IB_DM_H */ |