IXGBE_RTTDQSEL
IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, i);
IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, queue_index);
IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, reg_idx);