drivers/net/ethernet/intel/idpf/idpf_mem.h

File Facts

System

Linux kernel

Corpus path

drivers/net/ethernet/intel/idpf/idpf_mem.h

Extension

.h

Size

528 bytes

Lines

21

Domain

Driver Families

Bucket

drivers/net

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

• linux/io.h

Detected Declarations

• struct idpf_dma_mem

Annotated Snippet

struct idpf_dma_mem {
	void *va;
	dma_addr_t pa;
	size_t size;
};

#define idpf_mbx_wr32(a, reg, value)	writel((value), ((a)->mbx.vaddr + (reg)))
#define idpf_mbx_rd32(a, reg)		readl((a)->mbx.vaddr + (reg))
#define idpf_mbx_wr64(a, reg, value)	writeq((value), ((a)->mbx.vaddr + (reg)))
#define idpf_mbx_rd64(a, reg)		readq((a)->mbx.vaddr + (reg))

#endif /* _IDPF_MEM_H_ */

Annotation

• Immediate include surface: `linux/io.h`.
• Detected declarations: `struct idpf_dma_mem`.
• Atlas domain: Driver Families / drivers/net.
• 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.