ngbe_phy_read_reg
int ngbe_phy_read_reg(struct ngbe_hw *, uint32_t, uint32_t,
phy->ops.read_reg = ngbe_phy_read_reg;
ngbe_phy_read_reg(hw, NGBE_MDI_PHY_ID1_OFFSET, 0, &phy_id_high);
ngbe_phy_read_reg(hw, NGBE_MDI_PHY_ID2_OFFSET, 0, &phy_id_low);
ngbe_phy_read_reg(hw, 29, NGBE_INTERNAL_PHY_PAGE_OFFSET, &val);