si_event_arg_t
kmem_zalloc(sizeof (si_event_arg_t), KM_SLEEP);
kmem_free(si_portp->siport_event_args, sizeof (si_event_arg_t));
si_event_arg_t *args;
si_event_arg_t *args;
si_event_arg_t *args;
si_event_arg_t *args;
si_event_arg_t *siport_event_args;