include/uapi/rdma/rdma_user_ioctl_cmds.h

File Facts

System

Linux kernel

Corpus path

include/uapi/rdma/rdma_user_ioctl_cmds.h

Extension

.h

Size

2617 bytes

Lines

88

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
• linux/ioctl.h

Detected Declarations

• struct ib_uverbs_attr
• struct ib_uverbs_ioctl_hdr

Annotated Snippet

struct ib_uverbs_attr {
	__u16 attr_id;		/* command specific type attribute */
	__u16 len;		/* only for pointers and IDRs array */
	__u16 flags;		/* combination of UVERBS_ATTR_F_XXXX */
	union {
		struct {
			__u8 elem_id;
			__u8 reserved;
		} enum_data;
		__u16 reserved;
	} attr_data;
	union {
		/*
		 * ptr to command, inline data, idr/fd or
		 * ptr to __u32 array of IDRs
		 */
		__aligned_u64 data;
		/* Used by FD_IN and FD_OUT */
		__s64 data_s64;
	};
};

struct ib_uverbs_ioctl_hdr {
	__u16 length;
	__u16 object_id;
	__u16 method_id;
	__u16 num_attrs;
	__aligned_u64 reserved1;
	__u32 driver_id;
	__u32 reserved2;
	struct ib_uverbs_attr  attrs[];
};

#endif

Annotation

• Immediate include surface: `linux/types.h`, `linux/ioctl.h`.
• Detected declarations: `struct ib_uverbs_attr`, `struct ib_uverbs_ioctl_hdr`.
• 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.