drivers/net/wireless/broadcom/brcm80211/brcmfmac/flowring.h

Source file repositories/reference/linux-study-clean/drivers/net/wireless/broadcom/brcm80211/brcmfmac/flowring.h

File Facts

System
Linux kernel
Corpus path
drivers/net/wireless/broadcom/brcm80211/brcmfmac/flowring.h
Extension
.h
Size
2230 bytes
Lines
75
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.

Dependency Surface

Detected Declarations

Annotated Snippet

struct brcmf_flowring_hash {
	u8 mac[ETH_ALEN];
	u8 fifo;
	u8 ifidx;
	u16 flowid;
};

enum ring_status {
	RING_CLOSED,
	RING_CLOSING,
	RING_OPEN
};

struct brcmf_flowring_ring {
	u16 hash_id;
	bool blocked;
	enum ring_status status;
	struct sk_buff_head skblist;
};

struct brcmf_flowring_tdls_entry {
	u8 mac[ETH_ALEN];
	struct brcmf_flowring_tdls_entry *next;
};

struct brcmf_flowring {
	struct device *dev;
	struct brcmf_flowring_hash hash[BRCMF_FLOWRING_HASHSIZE];
	spinlock_t block_lock;
	enum proto_addr_mode addr_mode[BRCMF_MAX_IFS];
	u16 nrofrings;
	bool tdls_active;
	struct brcmf_flowring_tdls_entry *tdls_entry;
	struct brcmf_flowring_ring *rings[] __counted_by(nrofrings);
};


u32 brcmf_flowring_lookup(struct brcmf_flowring *flow, u8 da[ETH_ALEN],
			  u8 prio, u8 ifidx);
u32 brcmf_flowring_create(struct brcmf_flowring *flow, u8 da[ETH_ALEN],
			  u8 prio, u8 ifidx);
void brcmf_flowring_delete(struct brcmf_flowring *flow, u16 flowid);
void brcmf_flowring_open(struct brcmf_flowring *flow, u16 flowid);
u8 brcmf_flowring_tid(struct brcmf_flowring *flow, u16 flowid);
u32 brcmf_flowring_enqueue(struct brcmf_flowring *flow, u16 flowid,
			   struct sk_buff *skb);
struct sk_buff *brcmf_flowring_dequeue(struct brcmf_flowring *flow, u16 flowid);
void brcmf_flowring_reinsert(struct brcmf_flowring *flow, u16 flowid,
			     struct sk_buff *skb);
u32 brcmf_flowring_qlen(struct brcmf_flowring *flow, u16 flowid);
u8 brcmf_flowring_ifidx_get(struct brcmf_flowring *flow, u16 flowid);
struct brcmf_flowring *brcmf_flowring_attach(struct device *dev, u16 nrofrings);
void brcmf_flowring_detach(struct brcmf_flowring *flow);
void brcmf_flowring_configure_addr_mode(struct brcmf_flowring *flow, int ifidx,
					enum proto_addr_mode addr_mode);
void brcmf_flowring_delete_peer(struct brcmf_flowring *flow, int ifidx,
				u8 peer[ETH_ALEN]);
void brcmf_flowring_add_tdls_peer(struct brcmf_flowring *flow, int ifidx,
				  u8 peer[ETH_ALEN]);


#endif /* BRCMFMAC_FLOWRING_H */

Annotation

Implementation Notes