E1000_CTRL_FRCDPX
ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
ctrl |= (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
ctrl |= (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
E1000_CTRL_FD | E1000_CTRL_FRCDPX;
ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
ctrl |= (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);