AMIMEM_DVA
cmd->acc_io.aio_data = am ? htole32(AMIMEM_DVA(am)) : 0;
ccb->ccb_ptpa = htole32(AMIMEM_DVA(sc->sc_ccbmem_am) +
ccb->ccb_sglistpa = htole32(AMIMEM_DVA(sc->sc_ccbmem_am) +
pa = htole32(AMIMEM_DVA(am));
sc->sc_mbox_pa = htole32(AMIMEM_DVA(sc->sc_mbox_am));