PAUSE_FLOW_CTRL
if (hw->overrides & PAUSE_FLOW_CTRL)
!(hw->overrides & PAUSE_FLOW_CTRL)) {
hw->overrides |= PAUSE_FLOW_CTRL;
pause->autoneg = (hw->overrides & PAUSE_FLOW_CTRL) ? 0 : 1;
hw->overrides &= ~PAUSE_FLOW_CTRL;
hw->overrides |= PAUSE_FLOW_CTRL;