drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c

File Facts

System
Linux kernel
Corpus path
drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c
Extension
.c
Size
98546 bytes
Lines
3766
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 xgbe_sfp_eeprom {
	u8 base[64];
	u8 extd[32];
	u8 vendor[32];
};

#define XGBE_SFP_DIAGS_SUPPORTED(_x)			\
	((_x)->extd[XGBE_SFP_EXTD_SFF_8472] &&		\
	 !((_x)->extd[XGBE_SFP_EXTD_DIAG] & XGBE_SFP_EXTD_DIAG_ADDR_CHANGE))

#define XGBE_SFP_EEPROM_BASE_LEN	256
#define XGBE_SFP_EEPROM_DIAG_LEN	256
#define XGBE_SFP_EEPROM_MAX		(XGBE_SFP_EEPROM_BASE_LEN +	\
					 XGBE_SFP_EEPROM_DIAG_LEN)

#define XGBE_BEL_FUSE_VENDOR	"BEL-FUSE        "
#define XGBE_BEL_FUSE_PARTNO	"1GBT-SFP06      "

#define XGBE_MOLEX_VENDOR	"Molex Inc.      "

struct xgbe_sfp_ascii {
	union {
		char vendor[XGBE_SFP_BASE_VENDOR_NAME_LEN + 1];
		char partno[XGBE_SFP_BASE_VENDOR_PN_LEN + 1];
		char rev[XGBE_SFP_BASE_VENDOR_REV_LEN + 1];
		char serno[XGBE_SFP_BASE_VENDOR_SN_LEN + 1];
	} u;
};

/* MDIO PHY reset types */
enum xgbe_mdio_reset {
	XGBE_MDIO_RESET_NONE = 0,
	XGBE_MDIO_RESET_I2C_GPIO,
	XGBE_MDIO_RESET_INT_GPIO,
	XGBE_MDIO_RESET_MAX,
};

/* Re-driver related definitions */
enum xgbe_phy_redrv_if {
	XGBE_PHY_REDRV_IF_MDIO = 0,
	XGBE_PHY_REDRV_IF_I2C,
	XGBE_PHY_REDRV_IF_MAX,
};

enum xgbe_phy_redrv_model {
	XGBE_PHY_REDRV_MODEL_4223 = 0,
	XGBE_PHY_REDRV_MODEL_4227,
	XGBE_PHY_REDRV_MODEL_MAX,
};

enum xgbe_phy_redrv_mode {
	XGBE_PHY_REDRV_MODE_CX = 5,
	XGBE_PHY_REDRV_MODE_SR = 9,
};

#define XGBE_PHY_REDRV_MODE_REG	0x12b0

/* PHY related configuration information */
struct xgbe_phy_data {
	enum xgbe_port_mode port_mode;

	unsigned int port_id;

	unsigned int port_speeds;

	enum xgbe_conn_type conn_type;

	enum xgbe_mode cur_mode;
	enum xgbe_mode start_mode;

	unsigned int rrc_count;

	unsigned int mdio_addr;

	/* SFP Support */
	enum xgbe_sfp_comm sfp_comm;
	unsigned int sfp_mux_address;
	unsigned int sfp_mux_channel;

	unsigned int sfp_gpio_address;
	unsigned int sfp_gpio_mask;
	unsigned int sfp_gpio_inputs;
	unsigned int sfp_gpio_rx_los;
	unsigned int sfp_gpio_tx_fault;
	unsigned int sfp_gpio_mod_absent;
	unsigned int sfp_gpio_rate_select;

	unsigned int sfp_rx_los;
	unsigned int sfp_tx_fault;
	unsigned int sfp_mod_absent;

Annotation

Implementation Notes