drivers/net/wireless/silabs/wfx/queue.h

File Facts

System

Linux kernel

Corpus path

drivers/net/wireless/silabs/wfx/queue.h

Extension

.h

Size

1488 bytes

Lines

46

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.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/skbuff.h
• linux/atomic.h

Detected Declarations

• struct wfx_dev
• struct wfx_vif
• struct wfx_queue

Annotated Snippet

struct wfx_queue {
	struct sk_buff_head normal;
	struct sk_buff_head cab; /* Content After (DTIM) Beacon */
	struct sk_buff_head offchan;
	atomic_t            pending_frames;
	int                 priority;
};

void wfx_tx_lock(struct wfx_dev *wdev);
void wfx_tx_unlock(struct wfx_dev *wdev);
void wfx_tx_flush(struct wfx_dev *wdev);
void wfx_tx_lock_flush(struct wfx_dev *wdev);

void wfx_tx_queues_init(struct wfx_vif *wvif);
void wfx_tx_queues_check_empty(struct wfx_vif *wvif);
bool wfx_tx_queues_has_cab(struct wfx_vif *wvif);
void wfx_tx_queues_put(struct wfx_vif *wvif, struct sk_buff *skb);
struct wfx_hif_msg *wfx_tx_queues_get(struct wfx_dev *wdev);

bool wfx_tx_queue_empty(struct wfx_vif *wvif, struct wfx_queue *queue);
void wfx_tx_queue_drop(struct wfx_vif *wvif, struct wfx_queue *queue,
		       struct sk_buff_head *dropped);

struct sk_buff *wfx_pending_get(struct wfx_dev *wdev, u32 packet_id);
void wfx_pending_drop(struct wfx_dev *wdev, struct sk_buff_head *dropped);
unsigned int wfx_pending_get_pkt_us_delay(struct wfx_dev *wdev, struct sk_buff *skb);
void wfx_pending_dump_old_frames(struct wfx_dev *wdev, unsigned int limit_ms);

#endif

Annotation

• Immediate include surface: `linux/skbuff.h`, `linux/atomic.h`.
• Detected declarations: `struct wfx_dev`, `struct wfx_vif`, `struct wfx_queue`.
• Atlas domain: Driver Families / drivers/net.
• Implementation status: source implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

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.