IEE_NTBD
sc->sc_tbd_sz * IEE_NTBD * IEE_NCB) {
sc->sc_tbd_sz * IEE_NTBD * IEE_NCB,
sc->sc_shmem_sz = sc->sc_tbd_off + sc->sc_tbd_sz * IEE_NTBD * IEE_NCB;
MCLBYTES, IEE_NTBD, MCLBYTES, 0, BUS_DMA_NOWAIT,