xl_stats
struct xl_stats xl_stats;
bzero(&xl_stats, sizeof(struct xl_stats));
p = (u_int8_t *)&xl_stats;
ifp->if_ierrors += xl_stats.xl_rx_overrun;
ifp->if_collisions += xl_stats.xl_tx_multi_collision +
xl_stats.xl_tx_single_collision +
xl_stats.xl_tx_late_collision;