drivers/net/ethernet/airoha/airoha_regs.h

File Facts

System

Linux kernel

Corpus path

drivers/net/ethernet/airoha/airoha_regs.h

Extension

.h

Size

34535 bytes

Lines

920

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/types.h

Detected Declarations

• struct airoha_qdma_desc
• struct airoha_qdma_fwd_desc

Annotated Snippet

struct airoha_qdma_desc {
	__le32 rsv;
	__le32 ctrl;
	__le32 addr;
	__le32 data;
	__le32 msg0;
	__le32 msg1;
	__le32 msg2;
	__le32 msg3;
};

/* CTRL0 */
#define QDMA_FWD_DESC_CTX_MASK		BIT(31)
#define QDMA_FWD_DESC_RING_MASK		GENMASK(30, 28)
#define QDMA_FWD_DESC_IDX_MASK		GENMASK(27, 16)
#define QDMA_FWD_DESC_LEN_MASK		GENMASK(15, 0)
/* CTRL1 */
#define QDMA_FWD_DESC_FIRST_IDX_MASK	GENMASK(15, 0)
/* CTRL2 */
#define QDMA_FWD_DESC_MORE_PKT_NUM_MASK	GENMASK(2, 0)

struct airoha_qdma_fwd_desc {
	__le32 addr;
	__le32 ctrl0;
	__le32 ctrl1;
	__le32 ctrl2;
	__le32 msg0;
	__le32 msg1;
	__le32 rsv0;
	__le32 rsv1;
};

#endif /* AIROHA_REGS_H */

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct airoha_qdma_desc`, `struct airoha_qdma_fwd_desc`.
• 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.