E1000_CTRL_VME
reg |= E1000_CTRL_VME;
reg &= ~E1000_CTRL_VME;
strip_vlan = (E1000_READ_REG(hw, E1000_CTRL) & E1000_CTRL_VME) != 0;
if ((sc->esc_CTRL & E1000_CTRL_VME) &&