IXGBE_VFTDH
IXGBE_WRITE_REG(hw, IXGBE_VFTDH(i), 0);
IXGBE_WRITE_REG(&sc->hw, IXGBE_VFTDH(j), 0);
val = IXGBE_READ_REG(&txr->sc->hw, IXGBE_VFTDH(txr->me));