281 	struct llinfo_arp *la = zalloc_flags(llinfo_arp_zone, how | Z_ZERO);  in arp_llinfo_alloc()  local
283 	if (la) {  in arp_llinfo_alloc()
289 		_qinit(&la->la_holdq, Q_DROPHEAD, (arp_maxhold == 0) ?  in arp_llinfo_alloc()
292 	return la;  in arp_llinfo_alloc()
298 	struct llinfo_arp *la = arg;  in arp_llinfo_free()  local
300 	if (la->la_le.le_next != NULL || la->la_le.le_prev != NULL) {  in arp_llinfo_free()
301 		panic("%s: trying to free %p when it is in use", __func__, la);  in arp_llinfo_free()
306 	(void) arp_llinfo_flushq(la);  in arp_llinfo_free()
309 	VERIFY(la->la_rt->rt_llinfo == la);  in arp_llinfo_free()
310 	if (la->la_rt->rt_llinfo_purge != NULL) {  in arp_llinfo_free()
311 		la->la_rt->rt_llinfo_purge(la->la_rt);  in arp_llinfo_free()
314 	zfree(llinfo_arp_zone, la);  in arp_llinfo_free()
318 arp_llinfo_addq(struct llinfo_arp *la, struct mbuf *m)  in arp_llinfo_addq()  argument
332 	if (qlen(&la->la_holdq) >= qlimit(&la->la_holdq)) {  in arp_llinfo_addq()
335 		_getq_scidx_lt(&la->la_holdq, &pkt, SCIDX_CTL);  in arp_llinfo_addq()
338 			_getq(&la->la_holdq, &pkt);  in arp_llinfo_addq()
351 	_addq(&la->la_holdq, &pkt);  in arp_llinfo_addq()
356 		    qlen(&la->la_holdq));  in arp_llinfo_addq()
363 arp_llinfo_flushq(struct llinfo_arp *la)  in arp_llinfo_flushq()  argument
365 	uint32_t held = qlen(&la->la_holdq);  in arp_llinfo_flushq()
370 		_flushq(&la->la_holdq);  in arp_llinfo_flushq()
372 	la->la_prbreq_cnt = 0;  in arp_llinfo_flushq()
373 	VERIFY(qempty(&la->la_holdq));  in arp_llinfo_flushq()
380 	struct llinfo_arp *la = rt->rt_llinfo;  in arp_llinfo_purge()  local
383 	VERIFY(rt->rt_llinfo_purge == arp_llinfo_purge && la != NULL);  in arp_llinfo_purge()
385 	if (la->la_llreach != NULL) {  in arp_llinfo_purge()
387 		ifnet_llreach_free(la->la_llreach);  in arp_llinfo_purge()
388 		la->la_llreach = NULL;  in arp_llinfo_purge()
390 	la->la_lastused = 0;  in arp_llinfo_purge()
396 	struct llinfo_arp *la = rt->rt_llinfo;  in arp_llinfo_get_ri()  local
397 	struct if_llreach *lr = la->la_llreach;  in arp_llinfo_get_ri()
410 		    ifnet_llreach_up2calexp(lr, la->la_lastused);  in arp_llinfo_get_ri()
418 	struct llinfo_arp *la = rt->rt_llinfo;  in arp_llinfo_get_iflri()  local
419 	struct if_llreach *lr = la->la_llreach;  in arp_llinfo_get_iflri()
432 		    ifnet_llreach_up2upexp(lr, la->la_lastused);  in arp_llinfo_get_iflri()
470 arp_llreach_use(struct llinfo_arp *la)  in arp_llreach_use()  argument
472 	if (la->la_llreach != NULL) {  in arp_llreach_use()
473 		la->la_lastused = net_uptime();  in arp_llreach_use()
478 arp_llreach_reachable(struct llinfo_arp *la)  in arp_llreach_reachable()  argument
488 	if ((lr = la->la_llreach) == NULL) {  in arp_llreach_reachable()
505 		if (la->la_lastused == 0) {  in arp_llreach_reachable()
506 			VERIFY(la->la_llreach != NULL);  in arp_llreach_reachable()
507 			arp_llreach_use(la);  in arp_llreach_reachable()
518 		if (ifnet_llreach_reachable_delta(lr, la->la_lastused)) {  in arp_llreach_reachable()
534 		    &SIN(rt_key(la->la_rt))->sin_addr, tmp, sizeof(tmp)), why,  in arp_llreach_reachable()
535 		    (la->la_lastused ? (int64_t)(now - la->la_lastused) : -1),  in arp_llreach_reachable()
557 		struct llinfo_arp *la = rt->rt_llinfo;  in arp_llreach_alloc()  local
564 		if ((lr = la->la_llreach) != NULL) {  in arp_llreach_alloc()
599 			lr = la->la_llreach = ifnet_llreach_alloc(ifp,  in arp_llreach_alloc()
635 arptfree(struct llinfo_arp *la, void *arg)  in arptfree()  argument
638 	struct rtentry *rt = la->la_rt;  in arptfree()
653 	if (ap->probing && (la->la_flags & LLINFO_PROBING) &&  in arptfree()
654 	    la->la_probeexp <= timenow) {  in arptfree()
659 		(void) arp_llinfo_flushq(la);  in arptfree()
674 	ap->qlen += qlen(&la->la_holdq);  in arptfree()
675 	ap->qlen += la->la_prbreq_cnt;  in arptfree()
676 	ap->qsize += qsize(&la->la_holdq);  in arptfree()
705 			la->la_asked = 0;  in arptfree()
732 	struct llinfo_arp *la, *ola;  in in_arpdrain()  local
740 	la = llinfo_arp.lh_first;  in in_arpdrain()
743 	while ((ola = la) != NULL) {  in in_arpdrain()
744 		la = la->la_le.le_next;  in in_arpdrain()
763 	struct llinfo_arp *la, *ola;  in arp_timeout()  local
768 	la = llinfo_arp.lh_first;  in arp_timeout()
770 	while ((ola = la) != NULL) {  in arp_timeout()
771 		la = la->la_le.le_next;  in arp_timeout()
832 	struct llinfo_arp *la, *ola;  in arp_probe()  local
837 	la = llinfo_arp.lh_first;  in arp_probe()
840 	while ((ola = la) != NULL) {  in arp_probe()
841 		la = la->la_le.le_next;  in arp_probe()
903 	struct llinfo_arp *la = rt->rt_llinfo;  in arp_rtrequest()  local
948 			if (la != NULL) {  in arp_rtrequest()
949 				arp_llreach_use(la); /* Mark use timestamp */  in arp_rtrequest()
973 		if (la != NULL) {  in arp_rtrequest()
980 		rt->rt_llinfo = la = arp_llinfo_alloc(Z_WAITOK);  in arp_rtrequest()
988 		la->la_rt = rt;  in arp_rtrequest()
989 		LIST_INSERT_HEAD(&llinfo_arp, la, la_le);  in arp_rtrequest()
1028 		la->la_maxtries = arp_maxtries;  in arp_rtrequest()
1083 		if (la == NULL) {  in arp_rtrequest()
1092 		LIST_REMOVE(la, la_le);  in arp_rtrequest()
1093 		la->la_le.le_next = NULL;  in arp_rtrequest()
1094 		la->la_le.le_prev = NULL;  in arp_rtrequest()
1105 		(void) arp_llinfo_flushq(la);  in arp_rtrequest()