E1000_CTRL_SLU
ctrl |= E1000_CTRL_SLU;
E1000_CTRL_SLU);
ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FD);
(ctrl & E1000_CTRL_SLU) && (rxcw & E1000_RXCW_C)) {
E1000_WRITE_REG(hw, CTRL, (ctrl & ~E1000_CTRL_SLU));