q80_set_max_mtu_t
q80_set_max_mtu_t *max_mtu;
max_mtu = (q80_set_max_mtu_t *)ha->hw.mbox;
bzero(max_mtu, (sizeof (q80_set_max_mtu_t)));
max_mtu->count_version = (sizeof (q80_set_max_mtu_t) >> 2);
(sizeof (q80_set_max_mtu_t) >> 2),