drivers/net/ethernet/intel/i40e/i40e_io.h

File Facts

System

Linux kernel

Corpus path

drivers/net/ethernet/intel/i40e/i40e_io.h

Extension

.h

Size

499 bytes

Lines

17

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.

Dependency Surface

• linux/io-64-nonatomic-lo-hi.h

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef _I40E_IO_H_
#define _I40E_IO_H_

/* get readq/writeq support for 32 bit kernels, use the low-first version */
#include <linux/io-64-nonatomic-lo-hi.h>

#define wr32(a, reg, value)	writel((value), ((a)->hw_addr + (reg)))
#define rd32(a, reg)		readl((a)->hw_addr + (reg))

#define rd64(a, reg)		readq((a)->hw_addr + (reg))
#define i40e_flush(a)		readl((a)->hw_addr + I40E_GLGEN_STAT)

#endif /* _I40E_IO_H_ */

Annotation

• Immediate include surface: `linux/io-64-nonatomic-lo-hi.h`.
• 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.