inet/ip/ip_output.c

140 	dce_t		*dce;
149 	ASSERT(ixa->ixa_dce != NULL);	/* Could be default dce */
280 	 * any change to the per-destination dce (including it becoming
283 	dce = ixa->ixa_dce;
289 	if (dce->dce_flags & DCEF_PMTU) {
292 		if ((TICK_TO_SEC(now) - dce->dce_last_change_time >
298 			 * dce verification code in conn_ip_output.
300 			mutex_enter(&dce->dce_lock);
301 			dce->dce_flags &= ~(DCEF_PMTU|DCEF_TOO_SMALL_PMTU);
302 			dce->dce_last_change_time = TICK_TO_SEC(now);
303 			mutex_exit(&dce->dce_lock);
304 			dce_increment_generation(dce);
308 	if (dce->dce_generation != ixa->ixa_dce_generation) {
311 			ip_drop_output("ipIfStatsOutDiscards - verify dce",
315 		dce = ixa->ixa_dce;
319 		 * new dce's generation number change.
375 	return ((ire->ire_sendfn)(ire, mp, mp->b_rptr, ixa, &dce->dce_ident));
596 	dce_t		*dce;
600 	dce = dce_lookup_pkt(mp, ixa, &gen);
601 	ASSERT(dce != NULL);
605 	dce_refhold_notr(dce);
606 	dce_refrele(dce);
608 	ixa->ixa_dce = dce;
611 	/* Extract the (path) mtu from the dce, ncec_ill etc */
739  * the hold on the ire. Ditto for the nce and dce.
812 	dce_t		*dce = NULL;
870 		/* No dce yet; use default one */
927 	dce = dce_lookup_v4(dst, ipst, NULL);
928 	ASSERT(dce != NULL);
932 	} else if (dce->dce_flags & DCEF_PMTU) {
938 		if (TICK_TO_SEC(now) - dce->dce_last_change_time >
943 			mutex_enter(&dce->dce_lock);
944 			dce->dce_flags &= ~(DCEF_PMTU|DCEF_TOO_SMALL_PMTU);
945 			dce->dce_last_change_time = TICK_TO_SEC(now);
946 			mutex_exit(&dce->dce_lock);
947 			dce_increment_generation(dce);
953 			if (fragsize > dce->dce_pmtu)
954 				fragsize = dce->dce_pmtu;
1045 	error = (ire->ire_sendfn)(ire, mp, ipha, ixa, &dce->dce_ident);
1048 	if (dce != NULL)
1049 		dce_refrele(dce);