drivers/net/pcs/pcs-xpcs.h

File Facts

System

Linux kernel

Corpus path

drivers/net/pcs/pcs-xpcs.h

Extension

.h

Size

4150 bytes

Lines

128

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

• linux/bits.h
• linux/pcs/pcs-xpcs.h

Detected Declarations

• struct dw_xpcs_desc
• struct dw_xpcs
• enum dw_xpcs_clock

Annotated Snippet

struct dw_xpcs {
	struct dw_xpcs_info info;
	const struct dw_xpcs_desc *desc;
	struct mdio_device *mdiodev;
	struct clk_bulk_data clks[DW_XPCS_NUM_CLKS];
	struct phylink_pcs pcs;
	phy_interface_t interface;
	bool need_reset;
	u8 eee_mult_fact;
};

int xpcs_read(struct dw_xpcs *xpcs, int dev, u32 reg);
int xpcs_write(struct dw_xpcs *xpcs, int dev, u32 reg, u16 val);
int xpcs_modify(struct dw_xpcs *xpcs, int dev, u32 reg, u16 mask, u16 set);
int xpcs_read_vpcs(struct dw_xpcs *xpcs, int reg);
int xpcs_write_vpcs(struct dw_xpcs *xpcs, int reg, u16 val);
int nxp_sja1105_sgmii_pma_config(struct dw_xpcs *xpcs);
int nxp_sja1110_sgmii_pma_config(struct dw_xpcs *xpcs);
int nxp_sja1110_2500basex_pma_config(struct dw_xpcs *xpcs);
int txgbe_xpcs_switch_mode(struct dw_xpcs *xpcs, phy_interface_t interface);

Annotation

• Immediate include surface: `linux/bits.h`, `linux/pcs/pcs-xpcs.h`.
• Detected declarations: `struct dw_xpcs_desc`, `struct dw_xpcs`, `enum dw_xpcs_clock`.
• 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.