include/uapi/rdma/mthca-abi.h

File Facts

System

Linux kernel

Corpus path

include/uapi/rdma/mthca-abi.h

Extension

.h

Size

3055 bytes

Lines

113

Domain

Repository Root And Misc

Bucket

include

Inferred role

Repository Root And Misc: implementation source

Status

source implementation candidate

Why This File Exists

Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.

• Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/types.h

Detected Declarations

• struct mthca_alloc_ucontext_resp
• struct mthca_alloc_pd_resp
• struct mthca_reg_mr
• struct mthca_create_cq
• struct mthca_create_cq_resp
• struct mthca_resize_cq
• struct mthca_create_srq
• struct mthca_create_srq_resp
• struct mthca_create_qp

Annotated Snippet

struct mthca_alloc_ucontext_resp {
	__u32 qp_tab_size;
	__u32 uarc_size;
};

struct mthca_alloc_pd_resp {
	__u32 pdn;
	__u32 reserved;
};

/*
 * Mark the memory region with a DMA attribute that causes
 * in-flight DMA to be flushed when the region is written to:
 */
#define MTHCA_MR_DMASYNC	0x1

struct mthca_reg_mr {
	__u32 mr_attrs;
	__u32 reserved;
};

struct mthca_create_cq {
	__u32 lkey;
	__u32 pdn;
	__aligned_u64 arm_db_page;
	__aligned_u64 set_db_page;
	__u32 arm_db_index;
	__u32 set_db_index;
};

struct mthca_create_cq_resp {
	__u32 cqn;
	__u32 reserved;
};

struct mthca_resize_cq {
	__u32 lkey;
	__u32 reserved;
};

struct mthca_create_srq {
	__u32 lkey;
	__u32 db_index;
	__aligned_u64 db_page;
};

struct mthca_create_srq_resp {
	__u32 srqn;
	__u32 reserved;
};

struct mthca_create_qp {
	__u32 lkey;
	__u32 reserved;
	__aligned_u64 sq_db_page;
	__aligned_u64 rq_db_page;
	__u32 sq_db_index;
	__u32 rq_db_index;
};
#endif /* MTHCA_ABI_USER_H */

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct mthca_alloc_ucontext_resp`, `struct mthca_alloc_pd_resp`, `struct mthca_reg_mr`, `struct mthca_create_cq`, `struct mthca_create_cq_resp`, `struct mthca_resize_cq`, `struct mthca_create_srq`, `struct mthca_create_srq_resp`, `struct mthca_create_qp`.
• Atlas domain: Repository Root And Misc / include.
• Implementation status: source implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.