drivers/net/ethernet/intel/igb/e1000_82575.c

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/intel/igb/e1000_82575.c

File Facts

System
Linux kernel
Corpus path
drivers/net/ethernet/intel/igb/e1000_82575.c
Extension
.c
Size
79168 bytes
Lines
2921
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

switch (hw->mac.type) {
		case e1000_82580:
		case e1000_i350:
		case e1000_i354:
		case e1000_i210:
		case e1000_i211:
			phy->ops.read_reg = igb_read_phy_reg_82580;
			phy->ops.write_reg = igb_write_phy_reg_82580;
			break;
		default:
			phy->ops.read_reg = igb_read_phy_reg_igp;
			phy->ops.write_reg = igb_write_phy_reg_igp;
		}
	}

	/* set lan id */
	hw->bus.func = FIELD_GET(E1000_STATUS_FUNC_MASK, rd32(E1000_STATUS));

	/* Set phy->phy_addr and phy->id. */
	ret_val = igb_get_phy_id_82575(hw);
	if (ret_val)
		return ret_val;

	/* Verify phy id and set remaining function pointers */
	switch (phy->id) {
	case M88E1543_E_PHY_ID:
	case M88E1512_E_PHY_ID:
	case I347AT4_E_PHY_ID:
	case M88E1112_E_PHY_ID:
	case M88E1111_I_PHY_ID:
		phy->type		= e1000_phy_m88;
		phy->ops.check_polarity	= igb_check_polarity_m88;
		phy->ops.get_phy_info	= igb_get_phy_info_m88;
		if (phy->id != M88E1111_I_PHY_ID)
			phy->ops.get_cable_length =
					 igb_get_cable_length_m88_gen2;
		else
			phy->ops.get_cable_length = igb_get_cable_length_m88;
		phy->ops.force_speed_duplex = igb_phy_force_speed_duplex_m88;
		/* Check if this PHY is configured for media swap. */
		if (phy->id == M88E1112_E_PHY_ID) {
			u16 data;

			ret_val = phy->ops.write_reg(hw,
						     E1000_M88E1112_PAGE_ADDR,
						     2);
			if (ret_val)
				goto out;

			ret_val = phy->ops.read_reg(hw,
						    E1000_M88E1112_MAC_CTRL_1,
						    &data);
			if (ret_val)
				goto out;

			data = FIELD_GET(E1000_M88E1112_MAC_CTRL_1_MODE_MASK,
					 data);
			if (data == E1000_M88E1112_AUTO_COPPER_SGMII ||
			    data == E1000_M88E1112_AUTO_COPPER_BASEX)
				hw->mac.ops.check_for_link =
						igb_check_for_link_media_swap;
		}
		if (phy->id == M88E1512_E_PHY_ID) {
			ret_val = igb_initialize_M88E1512_phy(hw);
			if (ret_val)
				goto out;
		}
		if (phy->id == M88E1543_E_PHY_ID) {
			ret_val = igb_initialize_M88E1543_phy(hw);
			if (ret_val)
				goto out;
		}
		break;
	case IGP03E1000_E_PHY_ID:
		phy->type = e1000_phy_igp_3;
		phy->ops.get_phy_info = igb_get_phy_info_igp;
		phy->ops.get_cable_length = igb_get_cable_length_igp_2;
		phy->ops.force_speed_duplex = igb_phy_force_speed_duplex_igp;
		phy->ops.set_d0_lplu_state = igb_set_d0_lplu_state_82575;
		phy->ops.set_d3_lplu_state = igb_set_d3_lplu_state;
		break;
	case I82580_I_PHY_ID:
	case I350_I_PHY_ID:
		phy->type = e1000_phy_82580;
		phy->ops.force_speed_duplex =
					 igb_phy_force_speed_duplex_82580;
		phy->ops.get_cable_length = igb_get_cable_length_82580;
		phy->ops.get_phy_info = igb_get_phy_info_82580;
		phy->ops.set_d0_lplu_state = igb_set_d0_lplu_state_82580;
		phy->ops.set_d3_lplu_state = igb_set_d3_lplu_state_82580;

Annotation

Implementation Notes