DMA_DMAADDR
dmaaddr = DMA_DMAADDR(&st->st_data);
if (dmaaddr >= DMA_DMAADDR(&st->st_data) + dmasize) {
dmaaddr = DMA_DMAADDR(&st->st_bdl);
corblbase = (uint32_t)DMA_DMAADDR(&sc->sc_corb);
corbubase = (uint32_t)(((uint64_t)DMA_DMAADDR(&sc->sc_corb)) >> 32);
rirblbase = (uint32_t)DMA_DMAADDR(&sc->sc_rirb);
rirbubase = (uint32_t)(((uint64_t)DMA_DMAADDR(&sc->sc_rirb)) >> 32);