TPD_EOP_SHIFT
tpd->word1 |= cpu_to_le32(1 << TPD_EOP_SHIFT);
use_tpd->word1 |= 1 << TPD_EOP_SHIFT;
use_tpd->word3 |= 1 << TPD_EOP_SHIFT;
tpd->word3 |= 1 << TPD_EOP_SHIFT;