include/uapi/rdma/irdma-abi.h

File Facts

System

Linux kernel

Corpus path

include/uapi/rdma/irdma-abi.h

Extension

.h

Size

2681 bytes

Lines

135

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.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/types.h

Detected Declarations

• struct irdma_alloc_ucontext_req
• struct irdma_alloc_ucontext_resp
• struct irdma_alloc_pd_resp
• struct irdma_resize_cq_req
• struct irdma_create_cq_req
• struct irdma_create_srq_req
• struct irdma_create_srq_resp
• struct irdma_create_qp_req
• struct irdma_mem_reg_req
• struct irdma_modify_qp_req
• struct irdma_create_cq_resp
• struct irdma_create_qp_resp
• struct irdma_modify_qp_resp
• struct irdma_create_ah_resp
• enum irdma_memreg_type

Annotated Snippet

struct irdma_alloc_ucontext_req {
	__u32 rsvd32;
	__u8 userspace_ver;
	__u8 rsvd8[3];
	__aligned_u64 comp_mask;
};

struct irdma_alloc_ucontext_resp {
	__u32 max_pds;
	__u32 max_qps;
	__u32 wq_size; /* size of the WQs (SQ+RQ) in the mmaped area */
	__u8 kernel_ver;
	__u8 rsvd[3];
	__aligned_u64 feature_flags;
	__aligned_u64 db_mmap_key;
	__u32 max_hw_wq_frags;
	__u32 max_hw_read_sges;
	__u32 max_hw_inline;
	__u32 max_hw_rq_quanta;
	__u32 max_hw_wq_quanta;
	__u32 min_hw_cq_size;
	__u32 max_hw_cq_size;
	__u16 max_hw_sq_chunk;
	__u8 hw_rev;
	__u8 rsvd2;
	__aligned_u64 comp_mask;
	__u16 min_hw_wq_size;
	__u8 revd3[2];
	__u32 max_hw_srq_quanta;
};

struct irdma_alloc_pd_resp {
	__u32 pd_id;
	__u8 rsvd[4];
};

struct irdma_resize_cq_req {
	__aligned_u64 user_cq_buffer;
};

struct irdma_create_cq_req {
	__aligned_u64 user_cq_buf;
	__aligned_u64 user_shadow_area;
};

struct irdma_create_srq_req {
	__aligned_u64 user_srq_buf;
	__aligned_u64 user_shadow_area;
};

struct irdma_create_srq_resp {
	__u32 srq_id;
	__u32 srq_size;
};

struct irdma_create_qp_req {
	__aligned_u64 user_wqe_bufs;
	__aligned_u64 user_compl_ctx;
};

struct irdma_mem_reg_req {
	__u16 reg_type; /* enum irdma_memreg_type */
	__u16 cq_pages;
	__u16 rq_pages;
	__u16 sq_pages;
};

struct irdma_modify_qp_req {
	__u8 sq_flush;
	__u8 rq_flush;
	__u8 rsvd[6];
};

struct irdma_create_cq_resp {
	__u32 cq_id;
	__u32 cq_size;
};

struct irdma_create_qp_resp {
	__u32 qp_id;
	__u32 actual_sq_size;
	__u32 actual_rq_size;
	__u32 irdma_drv_opt;
	__u16 push_idx;
	__u8 lsmm;
	__u8 rsvd;
	__u32 qp_caps;
};

struct irdma_modify_qp_resp {

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct irdma_alloc_ucontext_req`, `struct irdma_alloc_ucontext_resp`, `struct irdma_alloc_pd_resp`, `struct irdma_resize_cq_req`, `struct irdma_create_cq_req`, `struct irdma_create_srq_req`, `struct irdma_create_srq_resp`, `struct irdma_create_qp_req`, `struct irdma_mem_reg_req`, `struct irdma_modify_qp_req`.
• Atlas domain: Repository Root And Misc / include.
• Implementation status: source implementation candidate.
• IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

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.