XNF_TX_DESC
for (i = 0; i < XNF_TX_DESC; i++) {
sc->sc_tx_avail = XNF_TX_DESC;
for (i = 0; i < XNF_TX_DESC; i++) {
sc->sc_tx_avail = XNF_TX_DESC;
union xnf_tx_desc txr_desc[XNF_TX_DESC];
struct xnf_tx_buf sc_tx_buf[XNF_TX_DESC];
ifq_init_maxlen(&ifp->if_snd, XNF_TX_DESC - 1);
if (((XNF_TX_DESC - (prod - sc->sc_tx_cons)) <
i = *prod & (XNF_TX_DESC - 1);
id = sc->sc_tx_next++ & (XNF_TX_DESC - 1);
i = *prod & (XNF_TX_DESC - 1);
i = (*prod - 1) & (XNF_TX_DESC - 1);
i = cons & (XNF_TX_DESC - 1);
KASSERT(id < XNF_TX_DESC);