JME_SSB_SIZE
bzero(rd->jme_ssb_block, JME_SSB_SIZE);
error = bus_dmamap_create(sc->sc_dmat, JME_SSB_SIZE, 1,
JME_SSB_SIZE, 0, BUS_DMA_NOWAIT, &sc->jme_cdata.jme_ssb_map);
error = bus_dmamem_alloc(sc->sc_dmat, JME_SSB_SIZE, 1, 0,
nsegs, JME_SSB_SIZE, (caddr_t *)&sc->jme_rdata.jme_ssb_block,
JME_SSB_SIZE, NULL, BUS_DMA_NOWAIT);