RT2661_RX_DESC_SIZE
sc->rxq.cur * RT2661_RX_DESC_SIZE, RT2661_RX_DESC_SIZE,
sc->rxq.cur * RT2661_RX_DESC_SIZE, RT2661_RX_DESC_SIZE,
error = bus_dmamap_create(sc->sc_dmat, count * RT2661_RX_DESC_SIZE, 1,
count * RT2661_RX_DESC_SIZE, 0, BUS_DMA_NOWAIT, &ring->map);
error = bus_dmamem_alloc(sc->sc_dmat, count * RT2661_RX_DESC_SIZE,
count * RT2661_RX_DESC_SIZE, (caddr_t *)&ring->desc,
count * RT2661_RX_DESC_SIZE, NULL, BUS_DMA_NOWAIT);
ring->count * RT2661_RX_DESC_SIZE);
#define RT2661_RX_DESC_WSIZE (RT2661_RX_DESC_SIZE / 4)