include/uapi/rdma/rdma_user_cm.h

File Facts

System

Linux kernel

Corpus path

include/uapi/rdma/rdma_user_cm.h

Extension

.h

Size

7961 bytes

Lines

382

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/socket.h
• linux/in6.h
• rdma/ib_user_verbs.h
• rdma/ib_user_sa.h

Detected Declarations

• struct rdma_ucm_cmd_hdr
• struct rdma_ucm_create_id
• struct rdma_ucm_create_id_resp
• struct rdma_ucm_destroy_id
• struct rdma_ucm_destroy_id_resp
• struct rdma_ucm_bind_ip
• struct rdma_ucm_bind
• struct rdma_ucm_resolve_ip
• struct rdma_ucm_resolve_addr
• struct rdma_ucm_resolve_route
• struct rdma_ucm_query
• struct rdma_ucm_query_route_resp
• struct rdma_ucm_query_addr_resp
• struct rdma_ucm_query_path_resp
• struct rdma_ucm_query_ib_service_resp
• struct rdma_ucm_conn_param
• struct rdma_ucm_ud_param
• struct rdma_ucm_ece
• struct rdma_ucm_connect
• struct rdma_ucm_listen
• struct rdma_ucm_accept
• struct rdma_ucm_reject
• struct rdma_ucm_disconnect
• struct rdma_ucm_init_qp_attr
• struct rdma_ucm_notify
• struct rdma_ucm_join_ip_mcast
• struct rdma_ucm_join_mcast
• struct rdma_ucm_get_event
• struct rdma_ucm_event_resp
• struct rdma_ucm_set_option
• struct rdma_ucm_migrate_id
• struct rdma_ucm_migrate_resp
• struct rdma_ucm_ib_service
• struct rdma_ucm_resolve_ib_service
• struct rdma_ucm_write_cm_event
• enum rdma_ucm_port_space

Annotated Snippet

struct rdma_ucm_cmd_hdr {
	__u32 cmd;
	__u16 in;
	__u16 out;
};

struct rdma_ucm_create_id {
	__aligned_u64 uid;
	__aligned_u64 response;
	__u16 ps;                  /* use enum rdma_ucm_port_space */
	__u8  qp_type;
	__u8  reserved[5];
};

struct rdma_ucm_create_id_resp {
	__u32 id;
};

struct rdma_ucm_destroy_id {
	__aligned_u64 response;
	__u32 id;
	__u32 reserved;
};

struct rdma_ucm_destroy_id_resp {
	__u32 events_reported;
};

struct rdma_ucm_bind_ip {
	__aligned_u64 response;
	struct sockaddr_in6 addr;
	__u32 id;
};

struct rdma_ucm_bind {
	__u32 id;
	__u16 addr_size;
	__u16 reserved;
	struct __kernel_sockaddr_storage addr;
};

struct rdma_ucm_resolve_ip {
	struct sockaddr_in6 src_addr;
	struct sockaddr_in6 dst_addr;
	__u32 id;
	__u32 timeout_ms;
};

struct rdma_ucm_resolve_addr {
	__u32 id;
	__u32 timeout_ms;
	__u16 src_size;
	__u16 dst_size;
	__u32 reserved;
	struct __kernel_sockaddr_storage src_addr;
	struct __kernel_sockaddr_storage dst_addr;
};

struct rdma_ucm_resolve_route {
	__u32 id;
	__u32 timeout_ms;
};

enum {
	RDMA_USER_CM_QUERY_ADDR,
	RDMA_USER_CM_QUERY_PATH,
	RDMA_USER_CM_QUERY_GID,
	RDMA_USER_CM_QUERY_IB_SERVICE
};

struct rdma_ucm_query {
	__aligned_u64 response;
	__u32 id;
	__u32 option;
};

struct rdma_ucm_query_route_resp {
	__aligned_u64 node_guid;
	struct ib_user_path_rec ib_route[2];
	struct sockaddr_in6 src_addr;
	struct sockaddr_in6 dst_addr;
	__u32 num_paths;
	__u8 port_num;
	__u8 reserved[3];
	__u32 ibdev_index;
	__u32 reserved1;
};

struct rdma_ucm_query_addr_resp {
	__aligned_u64 node_guid;

Annotation

• Immediate include surface: `linux/types.h`, `linux/socket.h`, `linux/in6.h`, `rdma/ib_user_verbs.h`, `rdma/ib_user_sa.h`.
• Detected declarations: `struct rdma_ucm_cmd_hdr`, `struct rdma_ucm_create_id`, `struct rdma_ucm_create_id_resp`, `struct rdma_ucm_destroy_id`, `struct rdma_ucm_destroy_id_resp`, `struct rdma_ucm_bind_ip`, `struct rdma_ucm_bind`, `struct rdma_ucm_resolve_ip`, `struct rdma_ucm_resolve_addr`, `struct rdma_ucm_resolve_route`.
• 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.