TX_NEXT
htole32(sc->tx.desc_ring_paddr + DESC_OFF(TX_NEXT(i)));
cur = TX_NEXT(cur);
for (i = sc->tx.next; sc->tx.queued > 0; i = TX_NEXT(i)) {
cur = TX_NEXT(cur);
i = TX_NEXT(i);
for (i = sc->sc_tx.next; sc->sc_tx.queued > 0; i = TX_NEXT(i)) {
cur = TX_NEXT(cur);
sc->sc_txq.t_cur = TX_NEXT(sc->sc_txq.t_cur);
for (i = sc->sc_txq.t_next; sc->sc_txq.t_queued > 0; i = TX_NEXT(i)) {
* TX_NEXT(i));