IXGB_WRITE_REG(hw, FCRTL, 0);
IXGB_WRITE_REG(hw, FCRTH, 0);
} else {
/* We need to set up the Receive Threshold high and low water
* marks as well as (optionally) enabling the transmission of XON
* frames. */
IXGB_WRITE_REG(hw, FCRTL, 0);
IXGB_WRITE_REG(hw, FCRTH, 0);
} else {
/* We need to set up the Receive Threshold high and low water
* marks as well as (optionally) enabling the transmission of XON
* frames. */