E1000_PHY_CTRL_GBE_DISABLE
if (mac_reg & E1000_PHY_CTRL_GBE_DISABLE)
if (mac_reg & (E1000_PHY_CTRL_GBE_DISABLE |
E1000_WRITE_REG(hw, PHY_CTRL, reg | E1000_PHY_CTRL_GBE_DISABLE