drivers/net/ethernet/broadcom/bnge/bnge_db.h

File Facts

System

Linux kernel

Corpus path

drivers/net/ethernet/broadcom/bnge/bnge_db.h

Extension

.h

Size

927 bytes

Lines

35

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

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

Detected Declarations

• struct bnge_db_info

Annotated Snippet

struct bnge_db_info {
	void __iomem		*doorbell;
	u64			db_key64;
	u32			db_ring_mask;
	u32			db_epoch_mask;
	u8			db_epoch_shift;
};

#define DB_EPOCH(db, idx)	(((idx) & (db)->db_epoch_mask) <<	\
				 ((db)->db_epoch_shift))
#define DB_RING_IDX(db, idx)	(((idx) & (db)->db_ring_mask) |		\
				 DB_EPOCH(db, idx))

#endif /* _BNGE_DB_H_ */

Annotation

• Detected declarations: `struct bnge_db_info`.
• 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.