BWN_PIO8_RXDATA
prq->prq_base + BWN_PIO8_RXDATA, (void *)&rxhdr,
prq->prq_base + BWN_PIO8_RXDATA, (void *)mp, (totlen & ~3));
v32 = bwn_pio_rx_read_4(prq, BWN_PIO8_RXDATA);