drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_mqprio.h

File Facts

System

Linux kernel

Corpus path

drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_mqprio.h

Extension

.h

Size

1461 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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• net/pkt_sched.h

Detected Declarations

• struct cxgb4_tc_port_mqprio
• struct cxgb4_tc_mqprio
• enum cxgb4_mqprio_state

Annotated Snippet

struct cxgb4_tc_port_mqprio {
	enum cxgb4_mqprio_state state; /* Current MQPRIO offload state */
	struct tc_mqprio_qopt_offload mqprio; /* MQPRIO offload params */
	struct sge_eosw_txq *eosw_txq; /* Netdev SW Tx queue array */
	u8 tc_hwtc_map[TC_QOPT_MAX_QUEUE]; /* MQPRIO tc to hardware tc map */
};

struct cxgb4_tc_mqprio {
	refcount_t refcnt; /* Refcount for adapter-wide resources */
	struct mutex mqprio_mutex; /* Lock for accessing MQPRIO info */
	struct cxgb4_tc_port_mqprio *port_mqprio; /* Per port MQPRIO info */
};

int cxgb4_setup_tc_mqprio(struct net_device *dev,
			  struct tc_mqprio_qopt_offload *mqprio);
void cxgb4_mqprio_stop_offload(struct adapter *adap);
int cxgb4_init_tc_mqprio(struct adapter *adap);
void cxgb4_cleanup_tc_mqprio(struct adapter *adap);
#endif /* __CXGB4_TC_MQPRIO_H__ */

Annotation

• Immediate include surface: `net/pkt_sched.h`.
• Detected declarations: `struct cxgb4_tc_port_mqprio`, `struct cxgb4_tc_mqprio`, `enum cxgb4_mqprio_state`.
• 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.