smsc_dbg_printf
smsc_dbg_printf(sc, "xfer status total_len %d\n", total_len);
smsc_dbg_printf(sc, "total_len %d < sizeof(rxhdr) %d\n",
smsc_dbg_printf(sc, "rx error (hdr 0x%08x)\n", rxhdr);
smsc_dbg_printf(sc, "rxeof total_len %d pktlen %d rxhdr "
smsc_dbg_printf(sc, "pktlen %d > total_len %d\n",
smsc_dbg_printf(sc, "m_devget returned NULL\n");
smsc_dbg_printf(sc, "link flag not set\n");
smsc_dbg_printf(sc, "full duplex operation\n");
smsc_dbg_printf(sc, "half duplex operation\n");
smsc_dbg_printf(sc, "receive all multicast enabled\n");
smsc_dbg_printf(sc, "receive select group of macs\n");
smsc_dbg_printf(sc, "setting mac address to "