drivers/net/wireless/broadcom/brcm80211/brcmsmac/scb.h

File Facts

System

Linux kernel

Corpus path

drivers/net/wireless/broadcom/brcm80211/brcmsmac/scb.h

Extension

.h

Size

2282 bytes

Lines

68

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/if_ether.h
• brcmu_utils.h
• defs.h
• types.h

Detected Declarations

• struct scb_ampdu_tid_ini
• struct scb_ampdu
• struct scb

Annotated Snippet

struct scb_ampdu_tid_ini {
	/* tx retry count; indexed by seq modulo */
	u8 txretry[AMPDU_TX_BA_MAX_WSIZE];
};

struct scb_ampdu {
	u8 max_pdu;		/* max pdus allowed in ampdu */
	u8 release;		/* # of mpdus released at a time */
	u32 max_rx_ampdu_bytes;	/* max ampdu rcv length; 8k, 16k, 32k, 64k */

	/*
	 * This could easily be a ini[] pointer and we keep this info in wl
	 * itself instead of having mac80211 hold it for us. Also could be made
	 * dynamic per tid instead of static.
	 */
	/* initiator info - per tid (NUMPRIO): */
	struct scb_ampdu_tid_ini ini[AMPDU_MAX_SCB_TID];
};

/* station control block - one per remote MAC address */
struct scb {
	u32 magic;
	u32 flags;	/* various bit flags as defined below */
	u16 seqctl[NUMPRIO];	/* seqctl of last received frame (for dups) */
	u16 seqnum[NUMPRIO];/* WME: driver maintained sw seqnum per priority */

	struct scb_ampdu scb_ampdu;	/* AMPDU state including per tid info */
};

#endif				/* _BRCM_SCB_H_ */

Annotation

• Immediate include surface: `linux/if_ether.h`, `brcmu_utils.h`, `defs.h`, `types.h`.
• Detected declarations: `struct scb_ampdu_tid_ini`, `struct scb_ampdu`, `struct scb`.
• 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.