drivers/infiniband/hw/qedr/qedr_roce_cm.h

File Facts

System

Linux kernel

Corpus path

drivers/infiniband/hw/qedr/qedr_roce_cm.h

Extension

.h

Size

2401 bytes

Lines

60

Domain

Driver Families

Bucket

drivers/infiniband

Inferred role

Driver Families: implementation source

Status

source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• function Copyright

Annotated Snippet

#ifndef LINUX_QEDR_CM_H_
#define LINUX_QEDR_CM_H_

#define QEDR_GSI_MAX_RECV_WR	(4096)
#define QEDR_GSI_MAX_SEND_WR	(4096)

#define QEDR_GSI_MAX_RECV_SGE	(1)	/* LL2 FW limitation */

#define QEDR_ROCE_V2_UDP_SPORT	(0000)

static inline u32 qedr_get_ipv4_from_gid(const u8 *gid)
{
	return *(u32 *)(void *)&gid[12];
}

/* RDMA CM */
int qedr_gsi_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
int qedr_gsi_post_recv(struct ib_qp *ibqp, const struct ib_recv_wr *wr,
		       const struct ib_recv_wr **bad_wr);
int qedr_gsi_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr,
		       const struct ib_send_wr **bad_wr);
int qedr_create_gsi_qp(struct qedr_dev *dev, struct ib_qp_init_attr *attrs,
		       struct qedr_qp *qp);
void qedr_store_gsi_qp_cq(struct qedr_dev *dev,
			  struct qedr_qp *qp, struct ib_qp_init_attr *attrs);
int qedr_destroy_gsi_qp(struct qedr_dev *dev);
void qedr_inc_sw_gsi_cons(struct qedr_qp_hwq_info *info);
#endif

Annotation

• Detected declarations: `function Copyright`.
• Atlas domain: Driver Families / drivers/infiniband.
• 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.