drivers/net/ethernet/intel/e1000e/ich8lan.c

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/intel/e1000e/ich8lan.c

File Facts

System
Linux kernel
Corpus path
drivers/net/ethernet/intel/e1000e/ich8lan.c
Extension
.c
Size
173120 bytes
Lines
6240
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 ich8_hsfsts {
		u16 flcdone:1;	/* bit 0 Flash Cycle Done */
		u16 flcerr:1;	/* bit 1 Flash Cycle Error */
		u16 dael:1;	/* bit 2 Direct Access error Log */
		u16 berasesz:2;	/* bit 4:3 Sector Erase Size */
		u16 flcinprog:1;	/* bit 5 flash cycle in Progress */
		u16 reserved1:2;	/* bit 13:6 Reserved */
		u16 reserved2:6;	/* bit 13:6 Reserved */
		u16 fldesvalid:1;	/* bit 14 Flash Descriptor Valid */
		u16 flockdn:1;	/* bit 15 Flash Config Lock-Down */
	} hsf_status;
	u16 regval;
};

/* ICH GbE Flash Hardware Sequencing Flash control Register bit breakdown */
/* Offset 06h FLCTL */
union ich8_hws_flash_ctrl {
	struct ich8_hsflctl {
		u16 flcgo:1;	/* 0 Flash Cycle Go */
		u16 flcycle:2;	/* 2:1 Flash Cycle */
		u16 reserved:5;	/* 7:3 Reserved  */
		u16 fldbcount:2;	/* 9:8 Flash Data Byte Count */
		u16 flockdn:6;	/* 15:10 Reserved */
	} hsf_ctrl;
	u16 regval;
};

/* ICH Flash Region Access Permissions */
union ich8_hws_flash_regacc {
	struct ich8_flracc {
		u32 grra:8;	/* 0:7 GbE region Read Access */
		u32 grwa:8;	/* 8:15 GbE region Write Access */
		u32 gmrag:8;	/* 23:16 GbE Master Read Access Grant */
		u32 gmwag:8;	/* 31:24 GbE Master Write Access Grant */
	} hsf_flregacc;
	u16 regval;
};

/* ICH Flash Protected Region */
union ich8_flash_protected_range {
	struct ich8_pr {
		u32 base:13;	/* 0:12 Protected Range Base */
		u32 reserved1:2;	/* 13:14 Reserved */
		u32 rpe:1;	/* 15 Read Protection Enable */
		u32 limit:13;	/* 16:28 Protected Range Limit */
		u32 reserved2:2;	/* 29:30 Reserved */
		u32 wpe:1;	/* 31 Write Protection Enable */
	} range;
	u32 regval;
};

static void e1000_clear_hw_cntrs_ich8lan(struct e1000_hw *hw);
static void e1000_initialize_hw_bits_ich8lan(struct e1000_hw *hw);
static s32 e1000_erase_flash_bank_ich8lan(struct e1000_hw *hw, u32 bank);
static s32 e1000_retry_write_flash_byte_ich8lan(struct e1000_hw *hw,
						u32 offset, u8 byte);
static s32 e1000_read_flash_byte_ich8lan(struct e1000_hw *hw, u32 offset,
					 u8 *data);
static s32 e1000_read_flash_word_ich8lan(struct e1000_hw *hw, u32 offset,
					 u16 *data);
static s32 e1000_read_flash_data_ich8lan(struct e1000_hw *hw, u32 offset,
					 u8 size, u16 *data);
static s32 e1000_read_flash_data32_ich8lan(struct e1000_hw *hw, u32 offset,
					   u32 *data);
static s32 e1000_read_flash_dword_ich8lan(struct e1000_hw *hw,
					  u32 offset, u32 *data);
static s32 e1000_write_flash_data32_ich8lan(struct e1000_hw *hw,
					    u32 offset, u32 data);
static s32 e1000_retry_write_flash_dword_ich8lan(struct e1000_hw *hw,
						 u32 offset, u32 dword);
static s32 e1000_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw);
static s32 e1000_cleanup_led_ich8lan(struct e1000_hw *hw);
static s32 e1000_led_on_ich8lan(struct e1000_hw *hw);
static s32 e1000_led_off_ich8lan(struct e1000_hw *hw);
static s32 e1000_id_led_init_pchlan(struct e1000_hw *hw);
static s32 e1000_setup_led_pchlan(struct e1000_hw *hw);
static s32 e1000_cleanup_led_pchlan(struct e1000_hw *hw);
static s32 e1000_led_on_pchlan(struct e1000_hw *hw);
static s32 e1000_led_off_pchlan(struct e1000_hw *hw);
static s32 e1000_set_lplu_state_pchlan(struct e1000_hw *hw, bool active);
static void e1000_power_down_phy_copper_ich8lan(struct e1000_hw *hw);
static void e1000_lan_init_done_ich8lan(struct e1000_hw *hw);
static s32 e1000_k1_gig_workaround_hv(struct e1000_hw *hw, bool link);
static s32 e1000_set_mdio_slow_mode_hv(struct e1000_hw *hw);
static bool e1000_check_mng_mode_ich8lan(struct e1000_hw *hw);
static bool e1000_check_mng_mode_pchlan(struct e1000_hw *hw);
static int e1000_rar_set_pch2lan(struct e1000_hw *hw, u8 *addr, u32 index);
static int e1000_rar_set_pch_lpt(struct e1000_hw *hw, u8 *addr, u32 index);
static u32 e1000_rar_get_count_pch_lpt(struct e1000_hw *hw);
static s32 e1000_k1_workaround_lv(struct e1000_hw *hw);

Annotation

Implementation Notes