drivers/net/ethernet/chelsio/cxgb/sge.h

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/chelsio/cxgb/sge.h

File Facts

System
Linux kernel
Corpus path
drivers/net/ethernet/chelsio/cxgb/sge.h
Extension
.h
Size
4345 bytes
Lines
86
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 sge_intr_counts {
	unsigned int rx_drops;        /* # of packets dropped due to no mem */
	unsigned int pure_rsps;        /* # of non-payload responses */
	unsigned int unhandled_irqs;   /* # of unhandled interrupts */
	unsigned int respQ_empty;      /* # times respQ empty */
	unsigned int respQ_overflow;   /* # respQ overflow (fatal) */
	unsigned int freelistQ_empty;  /* # times freelist empty */
	unsigned int pkt_too_big;      /* packet too large (fatal) */
	unsigned int pkt_mismatch;
	unsigned int cmdQ_full[3];     /* not HW IRQ, host cmdQ[] full */
	unsigned int cmdQ_restarted[3];/* # of times cmdQ X was restarted */
};

struct sge_port_stats {
	u64 rx_cso_good;     /* # of successful RX csum offloads */
	u64 tx_cso;          /* # of TX checksum offloads */
	u64 tx_tso;          /* # of TSO requests */
	u64 vlan_xtract;     /* # of VLAN tag extractions */
	u64 vlan_insert;     /* # of VLAN tag insertions */
	u64 tx_need_hdrroom; /* # of TX skbs in need of more header room */
};

struct sk_buff;
struct net_device;
struct adapter;
struct sge_params;
struct sge;

struct sge *t1_sge_create(struct adapter *, struct sge_params *);
int t1_sge_configure(struct sge *, struct sge_params *);
int t1_sge_set_coalesce_params(struct sge *, struct sge_params *);
void t1_sge_destroy(struct sge *);
irqreturn_t t1_interrupt_thread(int irq, void *data);
irqreturn_t t1_interrupt(int irq, void *cookie);
int t1_poll(struct napi_struct *, int);

netdev_tx_t t1_start_xmit(struct sk_buff *skb, struct net_device *dev);
void t1_vlan_mode(struct adapter *adapter, netdev_features_t features);
void t1_sge_start(struct sge *);
void t1_sge_stop(struct sge *);
bool t1_sge_intr_error_handler(struct sge *sge);
void t1_sge_intr_enable(struct sge *);
void t1_sge_intr_disable(struct sge *);
void t1_sge_intr_clear(struct sge *);
const struct sge_intr_counts *t1_sge_get_intr_counts(const struct sge *sge);
void t1_sge_get_port_stats(const struct sge *sge, int port, struct sge_port_stats *);
unsigned int t1_sched_update_parms(struct sge *, unsigned int, unsigned int,
			   unsigned int);

#endif /* _CXGB_SGE_H_ */

Annotation

Implementation Notes