SGE_RX_RING_SZ
bzero(sc->sge_ldata.sge_rx_ring, SGE_RX_RING_SZ);
SGE_RX_RING_SZ, 1, /* maxsize,nsegments */
SGE_RX_RING_SZ, /* maxsegsize */
ld->sge_rx_ring, SGE_RX_RING_SZ, sge_dma_map_addr,