DC_RX_LIST_SZ
BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL, DC_RX_LIST_SZ, 1,
DC_RX_LIST_SZ, 0, NULL, NULL, &sc->dc_rx_ltag);
sc->dc_ldata.dc_rx_list, DC_RX_LIST_SZ, dc_dma_map_addr,
bzero(ld->dc_rx_list, DC_RX_LIST_SZ);