BMAC_RXBUFS
sc->sc_rxcmd = dbdma_alloc((BMAC_RXBUFS + 1) * sizeof(dbdma_command_t),
sc->sc_rxbuf = malloc(BMAC_BUFLEN * BMAC_RXBUFS, M_DEVBUF, M_WAITOK);
memset(sc->sc_rxcmd, 0, (BMAC_RXBUFS + 1) * sizeof(dbdma_command_t));
for (i = 0; i < BMAC_RXBUFS; i++) {
for (n = 0; n < BMAC_RXBUFS; n++, i++) {
if (i == BMAC_RXBUFS)