drivers/net/ethernet/intel/ice/ice_adapter.h

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/intel/ice/ice_adapter.h

File Facts

System
Linux kernel
Corpus path
drivers/net/ethernet/intel/ice/ice_adapter.h
Extension
.h
Size
1801 bytes
Lines
61
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 ice_port_list {
	struct list_head ports;
	/* To synchronize the ports list operations */
	struct mutex lock;
};

/**
 * struct ice_adapter - PCI adapter resources shared across PFs
 * @refcount: Reference count. struct ice_pf objects hold the references.
 * @ptp_gltsyn_time_lock: Spinlock protecting access to the GLTSYN_TIME
 *                        register of the PTP clock.
 * @txq_ctx_lock: Spinlock protecting access to the GLCOMM_QTX_CNTX_CTL register
 * @cpi_phy_lock: Per-PHY mutex serializing CPI REQ/ACK transactions.
 *               Index 0 = PHY0, index 1 = PHY1. Used on E825C devices.
 * @ctrl_pf: Control PF of the adapter
 * @ports: Ports list
 * @index: 64-bit index cached for collision detection on 32bit systems
 */
struct ice_adapter {
	refcount_t refcount;
	/* For access to the GLTSYN_TIME register */
	spinlock_t ptp_gltsyn_time_lock;
	/* For access to GLCOMM_QTX_CNTX_CTL register */
	spinlock_t txq_ctx_lock;
	/* Serialize CPI REQ/ACK transactions per PHY (E825C only) */
	struct mutex cpi_phy_lock[ICE_E825_MAX_PHYS];

	struct ice_pf *ctrl_pf;
	struct ice_port_list ports;
	u64 index;
};

struct ice_adapter *ice_adapter_get(struct pci_dev *pdev);
void ice_adapter_put(struct pci_dev *pdev);

#endif /* _ICE_ADAPTER_H */

Annotation

Implementation Notes