IXGBE_FCRTH_FCEN
fcrth = (hw->fc.high_water[i] << 10) | IXGBE_FCRTH_FCEN;
fcrth = (hw->fc.high_water[i] << 10) | IXGBE_FCRTH_FCEN;
reg = (hw->fc.high_water[i] << 10) | IXGBE_FCRTH_FCEN;
reg = (hw->fc.high_water[i] << 10) | IXGBE_FCRTH_FCEN;