drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.h

File Facts

System

Linux kernel

Corpus path

drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.h

Extension

.h

Size

1108 bytes

Lines

38

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

• No C-style include directives detected by the generator.

Detected Declarations

• enum xgene_phy_speed

Annotated Snippet

#ifndef __XGENE_ENET_SGMAC_H__
#define __XGENE_ENET_SGMAC_H__

#define PHY_ADDR(src)		(((src)<<8) & GENMASK(12, 8))
#define REG_ADDR(src)		((src) & GENMASK(4, 0))
#define PHY_CONTROL(src)	((src) & GENMASK(15, 0))
#define LINK_SPEED(src)		(((src) & GENMASK(11, 10)) >> 10)
#define INT_PHY_ADDR			0x1e
#define SGMII_TBI_CONTROL_ADDR		0x44
#define SGMII_CONTROL_ADDR		0x00
#define SGMII_STATUS_ADDR		0x04
#define SGMII_BASE_PAGE_ABILITY_ADDR	0x14
#define AUTO_NEG_COMPLETE		BIT(5)
#define LINK_STATUS			BIT(2)
#define LINK_UP				BIT(15)
#define MPA_IDLE_WITH_QMI_EMPTY		BIT(12)
#define SG_RX_DV_GATE_REG_0_ADDR	0x05fc
#define SGMII_EN			0x1

enum xgene_phy_speed {
	PHY_SPEED_10,
	PHY_SPEED_100,
	PHY_SPEED_1000
};

extern const struct xgene_mac_ops xgene_sgmac_ops;
extern const struct xgene_port_ops xgene_sgport_ops;

#endif  /* __XGENE_ENET_SGMAC_H__ */

Annotation

• Detected declarations: `enum xgene_phy_speed`.
• 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.