DWXE_NTXDESC
DWXE_NTXDESC * sizeof(struct dwxe_desc), 8);
sc->sc_txbuf = malloc(sizeof(struct dwxe_buf) * DWXE_NTXDESC,
for (i = 0; i < DWXE_NTXDESC; i++) {
((i+1) % DWXE_NTXDESC) * sizeof(struct dwxe_desc);
for (i = 0; i < DWXE_NTXDESC; i++) {
if (frag == (DWXE_NTXDESC - 1)) {
ifq_init_maxlen(&ifp->if_snd, DWXE_NTXDESC - 1);
left += DWXE_NTXDESC;
KASSERT(idx < DWXE_NTXDESC);
if (sc->sc_tx_cons == (DWXE_NTXDESC - 1))