RL_ADDR_LO
RL_ADDR_LO(sc->rl_ldata.rl_rx_list_map->dm_segs[0].ds_addr));
RL_ADDR_LO(sc->rl_ldata.rl_tx_list_map->dm_segs[0].ds_addr));
CSR_WRITE_4(sc, RE_DTCCR_LO, RL_ADDR_LO(addr));
CSR_WRITE_4(sc, RE_DTCCR_LO, RL_ADDR_LO(addr) | RE_DTCCR_CMD);