Lines Matching refs:l
230 static int link_is_up(struct tipc_link *l) in link_is_up() argument
232 return l->state & (LINK_ESTABLISHED | LINK_SYNCHING); in link_is_up()
235 static int tipc_link_proto_rcv(struct tipc_link *l, struct sk_buff *skb,
237 static void tipc_link_build_proto_msg(struct tipc_link *l, int mtyp, bool probe,
241 static void link_print(struct tipc_link *l, const char *str);
242 static int tipc_link_build_nack_msg(struct tipc_link *l,
244 static void tipc_link_build_bc_init_msg(struct tipc_link *l,
246 static bool tipc_link_release_pkts(struct tipc_link *l, u16 to);
247 static u16 tipc_build_gap_ack_blks(struct tipc_link *l, void *data);
248 static int tipc_link_advance_transmq(struct tipc_link *l, u16 acked, u16 gap,
255 bool tipc_link_is_up(struct tipc_link *l) in tipc_link_is_up() argument
257 return link_is_up(l); in tipc_link_is_up()
260 bool tipc_link_peer_is_down(struct tipc_link *l) in tipc_link_peer_is_down() argument
262 return l->state == LINK_PEER_RESET; in tipc_link_peer_is_down()
265 bool tipc_link_is_reset(struct tipc_link *l) in tipc_link_is_reset() argument
267 return l->state & (LINK_RESET | LINK_FAILINGOVER | LINK_ESTABLISHING); in tipc_link_is_reset()
270 bool tipc_link_is_establishing(struct tipc_link *l) in tipc_link_is_establishing() argument
272 return l->state == LINK_ESTABLISHING; in tipc_link_is_establishing()
275 bool tipc_link_is_synching(struct tipc_link *l) in tipc_link_is_synching() argument
277 return l->state == LINK_SYNCHING; in tipc_link_is_synching()
280 bool tipc_link_is_failingover(struct tipc_link *l) in tipc_link_is_failingover() argument
282 return l->state == LINK_FAILINGOVER; in tipc_link_is_failingover()
285 bool tipc_link_is_blocked(struct tipc_link *l) in tipc_link_is_blocked() argument
287 return l->state & (LINK_RESETTING | LINK_PEER_RESET | LINK_FAILINGOVER); in tipc_link_is_blocked()
290 static bool link_is_bc_sndlink(struct tipc_link *l) in link_is_bc_sndlink() argument
292 return !l->bc_sndlink; in link_is_bc_sndlink()
295 static bool link_is_bc_rcvlink(struct tipc_link *l) in link_is_bc_rcvlink() argument
297 return ((l->bc_rcvlink == l) && !link_is_bc_sndlink(l)); in link_is_bc_rcvlink()
300 void tipc_link_set_active(struct tipc_link *l, bool active) in tipc_link_set_active() argument
302 l->active = active; in tipc_link_set_active()
305 u32 tipc_link_id(struct tipc_link *l) in tipc_link_id() argument
307 return l->peer_bearer_id << 16 | l->bearer_id; in tipc_link_id()
310 int tipc_link_window(struct tipc_link *l) in tipc_link_window() argument
312 return l->window; in tipc_link_window()
315 int tipc_link_prio(struct tipc_link *l) in tipc_link_prio() argument
317 return l->priority; in tipc_link_prio()
320 unsigned long tipc_link_tolerance(struct tipc_link *l) in tipc_link_tolerance() argument
322 return l->tolerance; in tipc_link_tolerance()
325 struct sk_buff_head *tipc_link_inputq(struct tipc_link *l) in tipc_link_inputq() argument
327 return l->inputq; in tipc_link_inputq()
330 char tipc_link_plane(struct tipc_link *l) in tipc_link_plane() argument
332 return l->net_plane; in tipc_link_plane()
335 void tipc_link_update_caps(struct tipc_link *l, u16 capabilities) in tipc_link_update_caps() argument
337 l->peer_caps = capabilities; in tipc_link_update_caps()
373 int tipc_link_bc_peers(struct tipc_link *l) in tipc_link_bc_peers() argument
375 return l->ackers; in tipc_link_bc_peers()
378 static u16 link_bc_rcv_gap(struct tipc_link *l) in link_bc_rcv_gap() argument
380 struct sk_buff *skb = skb_peek(&l->deferdq); in link_bc_rcv_gap()
383 if (more(l->snd_nxt, l->rcv_nxt)) in link_bc_rcv_gap()
384 gap = l->snd_nxt - l->rcv_nxt; in link_bc_rcv_gap()
386 gap = buf_seqno(skb) - l->rcv_nxt; in link_bc_rcv_gap()
390 void tipc_link_set_mtu(struct tipc_link *l, int mtu) in tipc_link_set_mtu() argument
392 l->mtu = mtu; in tipc_link_set_mtu()
395 int tipc_link_mtu(struct tipc_link *l) in tipc_link_mtu() argument
397 return l->mtu; in tipc_link_mtu()
400 u16 tipc_link_rcv_nxt(struct tipc_link *l) in tipc_link_rcv_nxt() argument
402 return l->rcv_nxt; in tipc_link_rcv_nxt()
405 u16 tipc_link_acked(struct tipc_link *l) in tipc_link_acked() argument
407 return l->acked; in tipc_link_acked()
410 char *tipc_link_name(struct tipc_link *l) in tipc_link_name() argument
412 return l->name; in tipc_link_name()
415 u32 tipc_link_state(struct tipc_link *l) in tipc_link_state() argument
417 return l->state; in tipc_link_state()
454 struct tipc_link *l; in tipc_link_create() local
456 l = kzalloc(sizeof(*l), GFP_ATOMIC); in tipc_link_create()
457 if (!l) in tipc_link_create()
459 *link = l; in tipc_link_create()
460 l->session = session; in tipc_link_create()
472 snprintf(l->name, sizeof(l->name), "%s:%s-%s:unknown", in tipc_link_create()
475 strcpy(l->if_name, if_name); in tipc_link_create()
476 l->addr = peer; in tipc_link_create()
477 l->peer_caps = peer_caps; in tipc_link_create()
478 l->net = net; in tipc_link_create()
479 l->in_session = false; in tipc_link_create()
480 l->bearer_id = bearer_id; in tipc_link_create()
481 l->tolerance = tolerance; in tipc_link_create()
484 l->net_plane = net_plane; in tipc_link_create()
485 l->advertised_mtu = mtu; in tipc_link_create()
486 l->mtu = mtu; in tipc_link_create()
487 l->priority = priority; in tipc_link_create()
488 tipc_link_set_queue_limits(l, window); in tipc_link_create()
489 l->ackers = 1; in tipc_link_create()
490 l->bc_sndlink = bc_sndlink; in tipc_link_create()
491 l->bc_rcvlink = bc_rcvlink; in tipc_link_create()
492 l->inputq = inputq; in tipc_link_create()
493 l->namedq = namedq; in tipc_link_create()
494 l->state = LINK_RESETTING; in tipc_link_create()
495 __skb_queue_head_init(&l->transmq); in tipc_link_create()
496 __skb_queue_head_init(&l->backlogq); in tipc_link_create()
497 __skb_queue_head_init(&l->deferdq); in tipc_link_create()
498 __skb_queue_head_init(&l->failover_deferdq); in tipc_link_create()
499 skb_queue_head_init(&l->wakeupq); in tipc_link_create()
500 skb_queue_head_init(l->inputq); in tipc_link_create()
522 struct tipc_link *l; in tipc_link_bc_create() local
529 l = *link; in tipc_link_bc_create()
530 strcpy(l->name, tipc_bclink_name); in tipc_link_bc_create()
531 trace_tipc_link_reset(l, TIPC_DUMP_ALL, "bclink created!"); in tipc_link_bc_create()
532 tipc_link_reset(l); in tipc_link_bc_create()
533 l->state = LINK_RESET; in tipc_link_bc_create()
534 l->ackers = 0; in tipc_link_bc_create()
535 l->bc_rcvlink = l; in tipc_link_bc_create()
538 if (link_is_bc_sndlink(l)) in tipc_link_bc_create()
539 l->state = LINK_ESTABLISHED; in tipc_link_bc_create()
542 if (link_is_bc_rcvlink(l) && !(peer_caps & TIPC_BCAST_RCAST)) in tipc_link_bc_create()
553 int tipc_link_fsm_evt(struct tipc_link *l, int evt) in tipc_link_fsm_evt() argument
556 int old_state = l->state; in tipc_link_fsm_evt()
558 switch (l->state) { in tipc_link_fsm_evt()
562 l->state = LINK_PEER_RESET; in tipc_link_fsm_evt()
565 l->state = LINK_RESET; in tipc_link_fsm_evt()
580 l->state = LINK_ESTABLISHING; in tipc_link_fsm_evt()
583 l->state = LINK_FAILINGOVER; in tipc_link_fsm_evt()
598 l->state = LINK_ESTABLISHING; in tipc_link_fsm_evt()
615 l->state = LINK_RESET; in tipc_link_fsm_evt()
632 l->state = LINK_ESTABLISHED; in tipc_link_fsm_evt()
635 l->state = LINK_FAILINGOVER; in tipc_link_fsm_evt()
638 l->state = LINK_RESET; in tipc_link_fsm_evt()
653 l->state = LINK_PEER_RESET; in tipc_link_fsm_evt()
657 l->state = LINK_RESETTING; in tipc_link_fsm_evt()
661 l->state = LINK_RESET; in tipc_link_fsm_evt()
667 l->state = LINK_SYNCHING; in tipc_link_fsm_evt()
678 l->state = LINK_PEER_RESET; in tipc_link_fsm_evt()
682 l->state = LINK_RESETTING; in tipc_link_fsm_evt()
686 l->state = LINK_RESET; in tipc_link_fsm_evt()
692 l->state = LINK_ESTABLISHED; in tipc_link_fsm_evt()
701 pr_err("Unknown FSM state %x in %s\n", l->state, l->name); in tipc_link_fsm_evt()
703 trace_tipc_link_fsm(l->name, old_state, l->state, evt); in tipc_link_fsm_evt()
707 evt, l->state, l->name); in tipc_link_fsm_evt()
708 trace_tipc_link_fsm(l->name, old_state, l->state, evt); in tipc_link_fsm_evt()
714 static void link_profile_stats(struct tipc_link *l) in link_profile_stats() argument
721 l->stats.accu_queue_sz += skb_queue_len(&l->transmq); in link_profile_stats()
722 l->stats.queue_sz_counts++; in link_profile_stats()
724 skb = skb_peek(&l->transmq); in link_profile_stats()
735 l->stats.msg_lengths_total += length; in link_profile_stats()
736 l->stats.msg_length_counts++; in link_profile_stats()
738 l->stats.msg_length_profile[0]++; in link_profile_stats()
740 l->stats.msg_length_profile[1]++; in link_profile_stats()
742 l->stats.msg_length_profile[2]++; in link_profile_stats()
744 l->stats.msg_length_profile[3]++; in link_profile_stats()
746 l->stats.msg_length_profile[4]++; in link_profile_stats()
748 l->stats.msg_length_profile[5]++; in link_profile_stats()
750 l->stats.msg_length_profile[6]++; in link_profile_stats()
760 bool tipc_link_too_silent(struct tipc_link *l) in tipc_link_too_silent() argument
762 return (l->silent_intv_cnt + 2 > l->abort_limit); in tipc_link_too_silent()
767 int tipc_link_timeout(struct tipc_link *l, struct sk_buff_head *xmitq) in tipc_link_timeout() argument
774 u16 bc_snt = l->bc_sndlink->snd_nxt - 1; in tipc_link_timeout()
775 u16 bc_acked = l->bc_rcvlink->acked; in tipc_link_timeout()
776 struct tipc_mon_state *mstate = &l->mon_state; in tipc_link_timeout()
778 trace_tipc_link_timeout(l, TIPC_DUMP_NONE, " "); in tipc_link_timeout()
779 trace_tipc_link_too_silent(l, TIPC_DUMP_ALL, " "); in tipc_link_timeout()
780 switch (l->state) { in tipc_link_timeout()
784 link_profile_stats(l); in tipc_link_timeout()
785 tipc_mon_get_state(l->net, l->addr, mstate, l->bearer_id); in tipc_link_timeout()
786 if (mstate->reset || (l->silent_intv_cnt > l->abort_limit)) in tipc_link_timeout()
787 return tipc_link_fsm_evt(l, LINK_FAILURE_EVT); in tipc_link_timeout()
789 state |= l->bc_rcvlink->rcv_unacked; in tipc_link_timeout()
790 state |= l->rcv_unacked; in tipc_link_timeout()
791 state |= !skb_queue_empty(&l->transmq); in tipc_link_timeout()
792 state |= !skb_queue_empty(&l->deferdq); in tipc_link_timeout()
794 probe |= l->silent_intv_cnt; in tipc_link_timeout()
796 l->silent_intv_cnt++; in tipc_link_timeout()
799 setup = l->rst_cnt++ <= 4; in tipc_link_timeout()
800 setup |= !(l->rst_cnt % 16); in tipc_link_timeout()
816 tipc_link_build_proto_msg(l, mtyp, probe, 0, 0, 0, 0, xmitq); in tipc_link_timeout()
827 static int link_schedule_user(struct tipc_link *l, struct tipc_msg *hdr) in link_schedule_user() argument
829 u32 dnode = tipc_own_addr(l->net); in link_schedule_user()
835 dnode, l->addr, dport, 0, 0); in link_schedule_user()
840 skb_queue_tail(&l->wakeupq, skb); in link_schedule_user()
841 l->stats.link_congs++; in link_schedule_user()
842 trace_tipc_link_conges(l, TIPC_DUMP_ALL, "wakeup scheduled!"); in link_schedule_user()
852 static void link_prepare_wakeup(struct tipc_link *l) in link_prepare_wakeup() argument
854 struct sk_buff_head *wakeupq = &l->wakeupq; in link_prepare_wakeup()
855 struct sk_buff_head *inputq = l->inputq; in link_prepare_wakeup()
864 avail[imp] = l->backlog[imp].limit - l->backlog[imp].len; in link_prepare_wakeup()
881 void tipc_link_reset(struct tipc_link *l) in tipc_link_reset() argument
888 l->in_session = false; in tipc_link_reset()
890 l->peer_session--; in tipc_link_reset()
891 l->session++; in tipc_link_reset()
892 l->mtu = l->advertised_mtu; in tipc_link_reset()
894 spin_lock_bh(&l->wakeupq.lock); in tipc_link_reset()
895 skb_queue_splice_init(&l->wakeupq, &list); in tipc_link_reset()
896 spin_unlock_bh(&l->wakeupq.lock); in tipc_link_reset()
898 spin_lock_bh(&l->inputq->lock); in tipc_link_reset()
899 skb_queue_splice_init(&list, l->inputq); in tipc_link_reset()
900 spin_unlock_bh(&l->inputq->lock); in tipc_link_reset()
902 __skb_queue_purge(&l->transmq); in tipc_link_reset()
903 __skb_queue_purge(&l->deferdq); in tipc_link_reset()
904 __skb_queue_purge(&l->backlogq); in tipc_link_reset()
905 __skb_queue_purge(&l->failover_deferdq); in tipc_link_reset()
907 l->backlog[imp].len = 0; in tipc_link_reset()
908 l->backlog[imp].target_bskb = NULL; in tipc_link_reset()
910 kfree_skb(l->reasm_buf); in tipc_link_reset()
911 kfree_skb(l->reasm_tnlmsg); in tipc_link_reset()
912 kfree_skb(l->failover_reasm_skb); in tipc_link_reset()
913 l->reasm_buf = NULL; in tipc_link_reset()
914 l->reasm_tnlmsg = NULL; in tipc_link_reset()
915 l->failover_reasm_skb = NULL; in tipc_link_reset()
916 l->rcv_unacked = 0; in tipc_link_reset()
917 l->snd_nxt = 1; in tipc_link_reset()
918 l->rcv_nxt = 1; in tipc_link_reset()
919 l->snd_nxt_state = 1; in tipc_link_reset()
920 l->rcv_nxt_state = 1; in tipc_link_reset()
921 l->acked = 0; in tipc_link_reset()
922 l->silent_intv_cnt = 0; in tipc_link_reset()
923 l->rst_cnt = 0; in tipc_link_reset()
924 l->bc_peer_is_up = false; in tipc_link_reset()
925 memset(&l->mon_state, 0, sizeof(l->mon_state)); in tipc_link_reset()
926 tipc_link_reset_stats(l); in tipc_link_reset()
939 int tipc_link_xmit(struct tipc_link *l, struct sk_buff_head *list, in tipc_link_xmit() argument
942 unsigned int maxwin = l->window; in tipc_link_xmit()
943 unsigned int mtu = l->mtu; in tipc_link_xmit()
944 u16 ack = l->rcv_nxt - 1; in tipc_link_xmit()
945 u16 seqno = l->snd_nxt; in tipc_link_xmit()
946 u16 bc_ack = l->bc_rcvlink->rcv_nxt - 1; in tipc_link_xmit()
947 struct sk_buff_head *transmq = &l->transmq; in tipc_link_xmit()
948 struct sk_buff_head *backlogq = &l->backlogq; in tipc_link_xmit()
969 if (unlikely(l->backlog[imp].len >= l->backlog[imp].limit)) { in tipc_link_xmit()
971 pr_warn("%s<%s>, link overflow", link_rst_msg, l->name); in tipc_link_xmit()
974 rc = link_schedule_user(l, hdr); in tipc_link_xmit()
978 l->stats.sent_fragmented++; in tipc_link_xmit()
979 l->stats.sent_fragments += pkt_cnt; in tipc_link_xmit()
999 if (link_is_bc_sndlink(l)) in tipc_link_xmit()
1002 TIPC_SKB_CB(skb)->ackers = l->ackers; in tipc_link_xmit()
1003 l->rcv_unacked = 0; in tipc_link_xmit()
1004 l->stats.sent_pkts++; in tipc_link_xmit()
1008 tskb = &l->backlog[imp].target_bskb; in tipc_link_xmit()
1011 l->stats.sent_bundled++; in tipc_link_xmit()
1014 if (tipc_msg_make_bundle(tskb, hdr, mtu, l->addr)) { in tipc_link_xmit()
1017 l->backlog[imp].len++; in tipc_link_xmit()
1018 l->stats.sent_bundled++; in tipc_link_xmit()
1019 l->stats.sent_bundles++; in tipc_link_xmit()
1022 l->backlog[imp].target_bskb = NULL; in tipc_link_xmit()
1023 l->backlog[imp].len += skb_queue_len(list); in tipc_link_xmit()
1026 l->snd_nxt = seqno; in tipc_link_xmit()
1030 static void tipc_link_advance_backlog(struct tipc_link *l, in tipc_link_advance_backlog() argument
1035 u16 seqno = l->snd_nxt; in tipc_link_advance_backlog()
1036 u16 ack = l->rcv_nxt - 1; in tipc_link_advance_backlog()
1037 u16 bc_ack = l->bc_rcvlink->rcv_nxt - 1; in tipc_link_advance_backlog()
1040 while (skb_queue_len(&l->transmq) < l->window) { in tipc_link_advance_backlog()
1041 skb = skb_peek(&l->backlogq); in tipc_link_advance_backlog()
1047 __skb_dequeue(&l->backlogq); in tipc_link_advance_backlog()
1050 l->backlog[imp].len--; in tipc_link_advance_backlog()
1051 if (unlikely(skb == l->backlog[imp].target_bskb)) in tipc_link_advance_backlog()
1052 l->backlog[imp].target_bskb = NULL; in tipc_link_advance_backlog()
1053 __skb_queue_tail(&l->transmq, skb); in tipc_link_advance_backlog()
1055 if (link_is_bc_sndlink(l)) in tipc_link_advance_backlog()
1059 TIPC_SKB_CB(skb)->ackers = l->ackers; in tipc_link_advance_backlog()
1063 l->rcv_unacked = 0; in tipc_link_advance_backlog()
1064 l->stats.sent_pkts++; in tipc_link_advance_backlog()
1067 l->snd_nxt = seqno; in tipc_link_advance_backlog()
1079 static bool link_retransmit_failure(struct tipc_link *l, struct tipc_link *r, in link_retransmit_failure() argument
1082 struct sk_buff *skb = skb_peek(&l->transmq); in link_retransmit_failure()
1096 if (link_is_bc_sndlink(l) && !less(r->acked, msg_seqno(hdr))) in link_retransmit_failure()
1099 pr_warn("Retransmission failure on link <%s>\n", l->name); in link_retransmit_failure()
1100 link_print(l, "State of link "); in link_retransmit_failure()
1109 trace_tipc_list_dump(&l->transmq, true, "retrans failure!"); in link_retransmit_failure()
1110 trace_tipc_link_dump(l, TIPC_DUMP_NONE, "retrans failure!"); in link_retransmit_failure()
1113 if (link_is_bc_sndlink(l)) { in link_retransmit_failure()
1117 *rc = tipc_link_fsm_evt(l, LINK_FAILURE_EVT); in link_retransmit_failure()
1130 static int tipc_link_bc_retrans(struct tipc_link *l, struct tipc_link *r, in tipc_link_bc_retrans() argument
1133 struct sk_buff *_skb, *skb = skb_peek(&l->transmq); in tipc_link_bc_retrans()
1134 u16 bc_ack = l->bc_rcvlink->rcv_nxt - 1; in tipc_link_bc_retrans()
1135 u16 ack = l->rcv_nxt - 1; in tipc_link_bc_retrans()
1144 trace_tipc_link_retrans(r, from, to, &l->transmq); in tipc_link_bc_retrans()
1146 if (link_retransmit_failure(l, r, &rc)) in tipc_link_bc_retrans()
1149 skb_queue_walk(&l->transmq, skb) { in tipc_link_bc_retrans()
1167 l->stats.retransmitted++; in tipc_link_bc_retrans()
1181 static bool tipc_data_input(struct tipc_link *l, struct sk_buff *skb, in tipc_data_input() argument
1184 struct sk_buff_head *mc_inputq = l->bc_rcvlink->inputq; in tipc_data_input()
1204 l->bc_rcvlink->state = LINK_ESTABLISHED; in tipc_data_input()
1205 skb_queue_tail(l->namedq, skb); in tipc_data_input()
1223 static int tipc_link_input(struct tipc_link *l, struct sk_buff *skb, in tipc_link_input() argument
1235 l->stats.recv_bundles++; in tipc_link_input()
1236 l->stats.recv_bundled += msg_msgcnt(hdr); in tipc_link_input()
1238 tipc_data_input(l, iskb, &tmpq); in tipc_link_input()
1242 l->stats.recv_fragments++; in tipc_link_input()
1244 l->stats.recv_fragmented++; in tipc_link_input()
1245 tipc_data_input(l, skb, inputq); in tipc_link_input()
1246 } else if (!*reasm_skb && !link_is_bc_rcvlink(l)) { in tipc_link_input()
1248 return tipc_link_fsm_evt(l, LINK_FAILURE_EVT); in tipc_link_input()
1252 tipc_bcast_lock(l->net); in tipc_link_input()
1253 tipc_link_bc_init_rcv(l->bc_rcvlink, hdr); in tipc_link_input()
1254 tipc_bcast_unlock(l->net); in tipc_link_input()
1268 static int tipc_link_tnl_rcv(struct tipc_link *l, struct sk_buff *skb, in tipc_link_tnl_rcv() argument
1271 struct sk_buff **reasm_skb = &l->failover_reasm_skb; in tipc_link_tnl_rcv()
1272 struct sk_buff **reasm_tnlmsg = &l->reasm_tnlmsg; in tipc_link_tnl_rcv()
1273 struct sk_buff_head *fdefq = &l->failover_deferdq; in tipc_link_tnl_rcv()
1304 if (*reasm_tnlmsg || link_is_bc_rcvlink(l)) in tipc_link_tnl_rcv()
1307 return tipc_link_fsm_evt(l, LINK_FAILURE_EVT); in tipc_link_tnl_rcv()
1314 if (unlikely(less(seqno, l->drop_point))) { in tipc_link_tnl_rcv()
1318 if (unlikely(seqno != l->drop_point)) { in tipc_link_tnl_rcv()
1323 l->drop_point++; in tipc_link_tnl_rcv()
1324 if (!tipc_data_input(l, iskb, inputq)) in tipc_link_tnl_rcv()
1325 rc |= tipc_link_input(l, iskb, inputq, reasm_skb); in tipc_link_tnl_rcv()
1328 } while ((iskb = __tipc_skb_dequeue(fdefq, l->drop_point))); in tipc_link_tnl_rcv()
1333 static bool tipc_link_release_pkts(struct tipc_link *l, u16 acked) in tipc_link_release_pkts() argument
1338 skb_queue_walk_safe(&l->transmq, skb, tmp) { in tipc_link_release_pkts()
1341 __skb_unlink(skb, &l->transmq); in tipc_link_release_pkts()
1354 static u16 tipc_build_gap_ack_blks(struct tipc_link *l, void *data) in tipc_build_gap_ack_blks() argument
1356 struct sk_buff *skb = skb_peek(&l->deferdq); in tipc_build_gap_ack_blks()
1365 skb_queue_walk(&l->deferdq, skb) { in tipc_build_gap_ack_blks()
1405 static int tipc_link_advance_transmq(struct tipc_link *l, u16 acked, u16 gap, in tipc_link_advance_transmq() argument
1411 u16 bc_ack = l->bc_rcvlink->rcv_nxt - 1; in tipc_link_advance_transmq()
1412 u16 ack = l->rcv_nxt - 1; in tipc_link_advance_transmq()
1417 skb_queue_walk_safe(&l->transmq, skb, tmp) { in tipc_link_advance_transmq()
1423 __skb_unlink(skb, &l->transmq); in tipc_link_advance_transmq()
1427 if (!passed && link_retransmit_failure(l, l, &rc)) in tipc_link_advance_transmq()
1444 l->stats.retransmitted++; in tipc_link_advance_transmq()
1468 int tipc_link_build_state_msg(struct tipc_link *l, struct sk_buff_head *xmitq) in tipc_link_build_state_msg() argument
1470 if (!l) in tipc_link_build_state_msg()
1474 if (link_is_bc_rcvlink(l)) { in tipc_link_build_state_msg()
1475 if (((l->rcv_nxt ^ tipc_own_addr(l->net)) & 0xf) != 0xf) in tipc_link_build_state_msg()
1477 l->rcv_unacked = 0; in tipc_link_build_state_msg()
1480 l->snd_nxt = l->rcv_nxt; in tipc_link_build_state_msg()
1485 l->rcv_unacked = 0; in tipc_link_build_state_msg()
1486 l->stats.sent_acks++; in tipc_link_build_state_msg()
1487 tipc_link_build_proto_msg(l, STATE_MSG, 0, 0, 0, 0, 0, xmitq); in tipc_link_build_state_msg()
1493 void tipc_link_build_reset_msg(struct tipc_link *l, struct sk_buff_head *xmitq) in tipc_link_build_reset_msg() argument
1498 if (l->state == LINK_ESTABLISHING) in tipc_link_build_reset_msg()
1501 tipc_link_build_proto_msg(l, mtyp, 0, 0, 0, 0, 0, xmitq); in tipc_link_build_reset_msg()
1505 if (skb && (l->state == LINK_RESET)) in tipc_link_build_reset_msg()
1513 static int tipc_link_build_nack_msg(struct tipc_link *l, in tipc_link_build_nack_msg() argument
1516 u32 def_cnt = ++l->stats.deferred_recv; in tipc_link_build_nack_msg()
1517 u32 defq_len = skb_queue_len(&l->deferdq); in tipc_link_build_nack_msg()
1520 if (link_is_bc_rcvlink(l)) { in tipc_link_build_nack_msg()
1522 match2 = tipc_own_addr(l->net) & 0xf; in tipc_link_build_nack_msg()
1529 tipc_link_build_proto_msg(l, STATE_MSG, 0, 0, 0, 0, 0, xmitq); in tipc_link_build_nack_msg()
1538 int tipc_link_rcv(struct tipc_link *l, struct sk_buff *skb, in tipc_link_rcv() argument
1541 struct sk_buff_head *defq = &l->deferdq; in tipc_link_rcv()
1548 return tipc_link_proto_rcv(l, skb, xmitq); in tipc_link_rcv()
1551 l->silent_intv_cnt = 0; in tipc_link_rcv()
1556 rcv_nxt = l->rcv_nxt; in tipc_link_rcv()
1559 if (unlikely(!link_is_up(l))) { in tipc_link_rcv()
1560 if (l->state == LINK_ESTABLISHING) in tipc_link_rcv()
1567 l->stats.duplicates++; in tipc_link_rcv()
1572 if (likely(tipc_link_release_pkts(l, msg_ack(hdr)))) { in tipc_link_rcv()
1573 tipc_link_advance_backlog(l, xmitq); in tipc_link_rcv()
1574 if (unlikely(!skb_queue_empty(&l->wakeupq))) in tipc_link_rcv()
1575 link_prepare_wakeup(l); in tipc_link_rcv()
1581 rc |= tipc_link_build_nack_msg(l, xmitq); in tipc_link_rcv()
1586 l->rcv_nxt++; in tipc_link_rcv()
1587 l->stats.recv_pkts++; in tipc_link_rcv()
1590 rc |= tipc_link_tnl_rcv(l, skb, l->inputq); in tipc_link_rcv()
1591 else if (!tipc_data_input(l, skb, l->inputq)) in tipc_link_rcv()
1592 rc |= tipc_link_input(l, skb, l->inputq, &l->reasm_buf); in tipc_link_rcv()
1593 if (unlikely(++l->rcv_unacked >= TIPC_MIN_LINK_WIN)) in tipc_link_rcv()
1594 rc |= tipc_link_build_state_msg(l, xmitq); in tipc_link_rcv()
1597 } while ((skb = __tipc_skb_dequeue(defq, l->rcv_nxt))); in tipc_link_rcv()
1605 static void tipc_link_build_proto_msg(struct tipc_link *l, int mtyp, bool probe, in tipc_link_build_proto_msg() argument
1610 struct tipc_link *bcl = l->bc_rcvlink; in tipc_link_build_proto_msg()
1613 struct sk_buff_head *dfq = &l->deferdq; in tipc_link_build_proto_msg()
1615 struct tipc_mon_state *mstate = &l->mon_state; in tipc_link_build_proto_msg()
1621 if (tipc_link_is_blocked(l)) in tipc_link_build_proto_msg()
1624 if (!tipc_link_is_up(l) && (mtyp == STATE_MSG)) in tipc_link_build_proto_msg()
1628 rcvgap = buf_seqno(skb_peek(dfq)) - l->rcv_nxt; in tipc_link_build_proto_msg()
1632 l->addr, tipc_own_addr(l->net), 0, 0, 0); in tipc_link_build_proto_msg()
1638 msg_set_session(hdr, l->session); in tipc_link_build_proto_msg()
1639 msg_set_bearer_id(hdr, l->bearer_id); in tipc_link_build_proto_msg()
1640 msg_set_net_plane(hdr, l->net_plane); in tipc_link_build_proto_msg()
1641 msg_set_next_sent(hdr, l->snd_nxt); in tipc_link_build_proto_msg()
1642 msg_set_ack(hdr, l->rcv_nxt - 1); in tipc_link_build_proto_msg()
1645 msg_set_last_bcast(hdr, l->bc_sndlink->snd_nxt - 1); in tipc_link_build_proto_msg()
1650 msg_set_seqno(hdr, l->snd_nxt + U16_MAX / 2); in tipc_link_build_proto_msg()
1653 if (l->peer_caps & TIPC_LINK_PROTO_SEQNO) in tipc_link_build_proto_msg()
1654 msg_set_seqno(hdr, l->snd_nxt_state++); in tipc_link_build_proto_msg()
1659 if (l->peer_caps & TIPC_GAP_ACK_BLOCK) in tipc_link_build_proto_msg()
1660 glen = tipc_build_gap_ack_blks(l, data); in tipc_link_build_proto_msg()
1661 tipc_mon_prep(l->net, data + glen, &dlen, mstate, l->bearer_id); in tipc_link_build_proto_msg()
1664 l->stats.sent_states++; in tipc_link_build_proto_msg()
1665 l->rcv_unacked = 0; in tipc_link_build_proto_msg()
1670 msg_set_dest_session(hdr, l->peer_session); in tipc_link_build_proto_msg()
1672 msg_set_max_pkt(hdr, l->advertised_mtu); in tipc_link_build_proto_msg()
1673 strcpy(data, l->if_name); in tipc_link_build_proto_msg()
1678 l->stats.sent_probes++; in tipc_link_build_proto_msg()
1680 l->stats.sent_nacks++; in tipc_link_build_proto_msg()
1683 trace_tipc_proto_build(skb, false, l->name); in tipc_link_build_proto_msg()
1686 void tipc_link_create_dummy_tnl_msg(struct tipc_link *l, in tipc_link_create_dummy_tnl_msg() argument
1689 u32 onode = tipc_own_addr(l->net); in tipc_link_create_dummy_tnl_msg()
1693 u32 dnode = l->addr; in tipc_link_create_dummy_tnl_msg()
1706 msg_set_bearer_id(hdr, l->peer_bearer_id); in tipc_link_create_dummy_tnl_msg()
1713 tipc_link_xmit(l, &tnlq, xmitq); in tipc_link_create_dummy_tnl_msg()
1719 void tipc_link_tnl_prepare(struct tipc_link *l, struct tipc_link *tnl, in tipc_link_tnl_prepare() argument
1725 struct sk_buff_head *queue = &l->transmq; in tipc_link_tnl_prepare()
1727 u16 pktlen, pktcnt, seqno = l->snd_nxt; in tipc_link_tnl_prepare()
1741 BASIC_H_SIZE, 0, l->addr, tipc_own_addr(l->net), in tipc_link_tnl_prepare()
1748 tipc_link_xmit(l, &tnlq, &tmpxq); in tipc_link_tnl_prepare()
1758 INT_H_SIZE, 0, l->addr, in tipc_link_tnl_prepare()
1759 tipc_own_addr(l->net), in tipc_link_tnl_prepare()
1768 syncpt = l->snd_nxt + skb_queue_len(&l->backlogq) - 1; in tipc_link_tnl_prepare()
1770 msg_set_bearer_id(hdr, l->peer_bearer_id); in tipc_link_tnl_prepare()
1777 tipc_msg_init(tipc_own_addr(l->net), &tnlhdr, TUNNEL_PROTOCOL, in tipc_link_tnl_prepare()
1778 mtyp, INT_H_SIZE, l->addr); in tipc_link_tnl_prepare()
1780 pktcnt = l->snd_nxt - buf_seqno(skb_peek(&l->transmq)); in tipc_link_tnl_prepare()
1782 pktcnt = skb_queue_len(&l->transmq); in tipc_link_tnl_prepare()
1783 pktcnt += skb_queue_len(&l->backlogq); in tipc_link_tnl_prepare()
1785 msg_set_bearer_id(&tnlhdr, l->peer_bearer_id); in tipc_link_tnl_prepare()
1790 if (queue == &l->backlogq) in tipc_link_tnl_prepare()
1836 if (queue != &l->backlogq) { in tipc_link_tnl_prepare()
1837 queue = &l->backlogq; in tipc_link_tnl_prepare()
1850 tnl->drop_point = l->rcv_nxt; in tipc_link_tnl_prepare()
1851 tnl->failover_reasm_skb = l->reasm_buf; in tipc_link_tnl_prepare()
1852 l->reasm_buf = NULL; in tipc_link_tnl_prepare()
1860 skb_queue_splice_init(&l->deferdq, fdefq); in tipc_link_tnl_prepare()
1874 void tipc_link_failover_prepare(struct tipc_link *l, struct tipc_link *tnl, in tipc_link_failover_prepare() argument
1901 bool tipc_link_validate_msg(struct tipc_link *l, struct tipc_msg *hdr) in tipc_link_validate_msg() argument
1903 u16 curr_session = l->peer_session; in tipc_link_validate_msg()
1912 if (!l->in_session) in tipc_link_validate_msg()
1917 if (!l->in_session) in tipc_link_validate_msg()
1923 if (!l->in_session) in tipc_link_validate_msg()
1928 if (!link_is_up(l) && msg_ack(hdr)) in tipc_link_validate_msg()
1930 if (!(l->peer_caps & TIPC_LINK_PROTO_SEQNO)) in tipc_link_validate_msg()
1933 return !less(msg_seqno(hdr), l->rcv_nxt_state); in tipc_link_validate_msg()
1944 static int tipc_link_proto_rcv(struct tipc_link *l, struct sk_buff *skb, in tipc_link_proto_rcv() argument
1955 u16 rcv_nxt = l->rcv_nxt; in tipc_link_proto_rcv()
1963 trace_tipc_proto_rcv(skb, false, l->name); in tipc_link_proto_rcv()
1968 if (tipc_link_is_blocked(l) || !xmitq) in tipc_link_proto_rcv()
1971 if (tipc_own_addr(l->net) > msg_prevnode(hdr)) in tipc_link_proto_rcv()
1972 l->net_plane = msg_net_plane(hdr); in tipc_link_proto_rcv()
1980 if (!tipc_link_validate_msg(l, hdr)) { in tipc_link_proto_rcv()
1982 trace_tipc_link_dump(l, TIPC_DUMP_NONE, "PROTO invalid (1)!"); in tipc_link_proto_rcv()
1990 if_name = strrchr(l->name, ':') + 1; in tipc_link_proto_rcv()
1991 if (sizeof(l->name) - (if_name - l->name) <= TIPC_MAX_IF_NAME) in tipc_link_proto_rcv()
1999 l->tolerance = peers_tol; in tipc_link_proto_rcv()
2000 l->bc_rcvlink->tolerance = peers_tol; in tipc_link_proto_rcv()
2003 if (in_range(peers_prio, l->priority + 1, TIPC_MAX_LINK_PRI)) in tipc_link_proto_rcv()
2004 l->priority = peers_prio; in tipc_link_proto_rcv()
2008 rc = tipc_link_fsm_evt(l, LINK_FAILURE_EVT); in tipc_link_proto_rcv()
2016 l->session != msg_dest_session(hdr)) { in tipc_link_proto_rcv()
2017 if (less(l->session, msg_dest_session(hdr))) in tipc_link_proto_rcv()
2018 l->session = msg_dest_session(hdr) + 1; in tipc_link_proto_rcv()
2023 if (mtyp == RESET_MSG || !link_is_up(l)) in tipc_link_proto_rcv()
2024 rc = tipc_link_fsm_evt(l, LINK_PEER_RESET_EVT); in tipc_link_proto_rcv()
2027 if (mtyp == ACTIVATE_MSG && l->state == LINK_ESTABLISHING) in tipc_link_proto_rcv()
2030 l->peer_session = msg_session(hdr); in tipc_link_proto_rcv()
2031 l->in_session = true; in tipc_link_proto_rcv()
2032 l->peer_bearer_id = msg_bearer_id(hdr); in tipc_link_proto_rcv()
2033 if (l->mtu > msg_max_pkt(hdr)) in tipc_link_proto_rcv()
2034 l->mtu = msg_max_pkt(hdr); in tipc_link_proto_rcv()
2039 if (l->peer_caps & TIPC_GAP_ACK_BLOCK) { in tipc_link_proto_rcv()
2049 l->rcv_nxt_state = msg_seqno(hdr) + 1; in tipc_link_proto_rcv()
2053 l->tolerance = peers_tol; in tipc_link_proto_rcv()
2054 l->bc_rcvlink->tolerance = peers_tol; in tipc_link_proto_rcv()
2057 if ((peers_prio != l->priority) && in tipc_link_proto_rcv()
2059 l->priority = peers_prio; in tipc_link_proto_rcv()
2060 rc = tipc_link_fsm_evt(l, LINK_FAILURE_EVT); in tipc_link_proto_rcv()
2063 l->silent_intv_cnt = 0; in tipc_link_proto_rcv()
2064 l->stats.recv_states++; in tipc_link_proto_rcv()
2066 l->stats.recv_probes++; in tipc_link_proto_rcv()
2068 if (!link_is_up(l)) { in tipc_link_proto_rcv()
2069 if (l->state == LINK_ESTABLISHING) in tipc_link_proto_rcv()
2074 tipc_mon_rcv(l->net, data + glen, dlen - glen, l->addr, in tipc_link_proto_rcv()
2075 &l->mon_state, l->bearer_id); in tipc_link_proto_rcv()
2078 if (more(peers_snd_nxt, rcv_nxt) && !tipc_link_is_synching(l)) in tipc_link_proto_rcv()
2079 rcvgap = peers_snd_nxt - l->rcv_nxt; in tipc_link_proto_rcv()
2081 tipc_link_build_proto_msg(l, STATE_MSG, 0, reply, in tipc_link_proto_rcv()
2084 rc |= tipc_link_advance_transmq(l, ack, gap, ga, xmitq); in tipc_link_proto_rcv()
2088 l->stats.recv_nacks++; in tipc_link_proto_rcv()
2090 tipc_link_advance_backlog(l, xmitq); in tipc_link_proto_rcv()
2091 if (unlikely(!skb_queue_empty(&l->wakeupq))) in tipc_link_proto_rcv()
2092 link_prepare_wakeup(l); in tipc_link_proto_rcv()
2101 static bool tipc_link_build_bc_proto_msg(struct tipc_link *l, bool bcast, in tipc_link_build_bc_proto_msg() argument
2107 struct sk_buff *dfrd_skb = skb_peek(&l->deferdq); in tipc_link_build_bc_proto_msg()
2108 u16 ack = l->rcv_nxt - 1; in tipc_link_build_bc_proto_msg()
2112 0, l->addr, tipc_own_addr(l->net), 0, 0, 0); in tipc_link_build_bc_proto_msg()
2116 msg_set_last_bcast(hdr, l->bc_sndlink->snd_nxt - 1); in tipc_link_build_bc_proto_msg()
2132 static void tipc_link_build_bc_init_msg(struct tipc_link *l, in tipc_link_build_bc_init_msg() argument
2138 if (!tipc_link_build_bc_proto_msg(l->bc_rcvlink, false, 0, &list)) in tipc_link_build_bc_init_msg()
2141 tipc_link_xmit(l, &list, xmitq); in tipc_link_build_bc_init_msg()
2146 void tipc_link_bc_init_rcv(struct tipc_link *l, struct tipc_msg *hdr) in tipc_link_bc_init_rcv() argument
2151 if (link_is_up(l)) in tipc_link_bc_init_rcv()
2155 l->rcv_nxt = peers_snd_nxt; in tipc_link_bc_init_rcv()
2156 l->state = LINK_ESTABLISHED; in tipc_link_bc_init_rcv()
2160 if (l->peer_caps & TIPC_BCAST_SYNCH) in tipc_link_bc_init_rcv()
2168 l->rcv_nxt = peers_snd_nxt; in tipc_link_bc_init_rcv()
2173 int tipc_link_bc_sync_rcv(struct tipc_link *l, struct tipc_msg *hdr, in tipc_link_bc_sync_rcv() argument
2176 struct tipc_link *snd_l = l->bc_sndlink; in tipc_link_bc_sync_rcv()
2182 if (!link_is_up(l)) in tipc_link_bc_sync_rcv()
2190 l->bc_peer_is_up = true; in tipc_link_bc_sync_rcv()
2192 if (!l->bc_peer_is_up) in tipc_link_bc_sync_rcv()
2195 l->stats.recv_nacks++; in tipc_link_bc_sync_rcv()
2198 if (more(peers_snd_nxt, l->rcv_nxt + l->window)) in tipc_link_bc_sync_rcv()
2201 rc = tipc_link_bc_retrans(snd_l, l, from, to, xmitq); in tipc_link_bc_sync_rcv()
2203 l->snd_nxt = peers_snd_nxt; in tipc_link_bc_sync_rcv()
2204 if (link_bc_rcv_gap(l)) in tipc_link_bc_sync_rcv()
2208 if (l->peer_caps & TIPC_BCAST_STATE_NACK) in tipc_link_bc_sync_rcv()
2213 if (!more(peers_snd_nxt, l->rcv_nxt)) { in tipc_link_bc_sync_rcv()
2214 l->nack_state = BC_NACK_SND_CONDITIONAL; in tipc_link_bc_sync_rcv()
2219 if (l->nack_state == BC_NACK_SND_SUPPRESS) { in tipc_link_bc_sync_rcv()
2220 l->nack_state = BC_NACK_SND_UNCONDITIONAL; in tipc_link_bc_sync_rcv()
2225 if (l->nack_state == BC_NACK_SND_CONDITIONAL) { in tipc_link_bc_sync_rcv()
2226 l->nack_state = BC_NACK_SND_UNCONDITIONAL; in tipc_link_bc_sync_rcv()
2227 if ((peers_snd_nxt - l->rcv_nxt) < TIPC_MIN_LINK_WIN) in tipc_link_bc_sync_rcv()
2232 tipc_link_build_bc_proto_msg(l, true, peers_snd_nxt, xmitq); in tipc_link_bc_sync_rcv()
2233 l->nack_state = BC_NACK_SND_SUPPRESS; in tipc_link_bc_sync_rcv()
2237 void tipc_link_bc_ack_rcv(struct tipc_link *l, u16 acked, in tipc_link_bc_ack_rcv() argument
2241 struct tipc_link *snd_l = l->bc_sndlink; in tipc_link_bc_ack_rcv()
2243 if (!link_is_up(l) || !l->bc_peer_is_up) in tipc_link_bc_ack_rcv()
2246 if (!more(acked, l->acked)) in tipc_link_bc_ack_rcv()
2249 trace_tipc_link_bc_ack(l, l->acked, acked, &snd_l->transmq); in tipc_link_bc_ack_rcv()
2252 if (more(buf_seqno(skb), l->acked)) in tipc_link_bc_ack_rcv()
2265 l->acked = acked; in tipc_link_bc_ack_rcv()
2275 int tipc_link_bc_nack_rcv(struct tipc_link *l, struct sk_buff *skb, in tipc_link_bc_nack_rcv() argument
2289 if (!tipc_link_is_up(l) || !l->bc_peer_is_up) in tipc_link_bc_nack_rcv()
2295 if (dnode == tipc_own_addr(l->net)) { in tipc_link_bc_nack_rcv()
2296 tipc_link_bc_ack_rcv(l, acked, xmitq); in tipc_link_bc_nack_rcv()
2297 rc = tipc_link_bc_retrans(l->bc_sndlink, l, from, to, xmitq); in tipc_link_bc_nack_rcv()
2298 l->stats.recv_nacks++; in tipc_link_bc_nack_rcv()
2303 if (more(peers_snd_nxt, l->rcv_nxt) && !less(l->rcv_nxt, from)) in tipc_link_bc_nack_rcv()
2304 l->nack_state = BC_NACK_SND_SUPPRESS; in tipc_link_bc_nack_rcv()
2309 void tipc_link_set_queue_limits(struct tipc_link *l, u32 win) in tipc_link_set_queue_limits() argument
2311 int max_bulk = TIPC_MAX_PUBL / (l->mtu / ITEM_SIZE); in tipc_link_set_queue_limits()
2313 l->window = win; in tipc_link_set_queue_limits()
2314 l->backlog[TIPC_LOW_IMPORTANCE].limit = max_t(u16, 50, win); in tipc_link_set_queue_limits()
2315 l->backlog[TIPC_MEDIUM_IMPORTANCE].limit = max_t(u16, 100, win * 2); in tipc_link_set_queue_limits()
2316 l->backlog[TIPC_HIGH_IMPORTANCE].limit = max_t(u16, 150, win * 3); in tipc_link_set_queue_limits()
2317 l->backlog[TIPC_CRITICAL_IMPORTANCE].limit = max_t(u16, 200, win * 4); in tipc_link_set_queue_limits()
2318 l->backlog[TIPC_SYSTEM_IMPORTANCE].limit = max_bulk; in tipc_link_set_queue_limits()
2325 void tipc_link_reset_stats(struct tipc_link *l) in tipc_link_reset_stats() argument
2327 memset(&l->stats, 0, sizeof(l->stats)); in tipc_link_reset_stats()
2330 static void link_print(struct tipc_link *l, const char *str) in link_print() argument
2332 struct sk_buff *hskb = skb_peek(&l->transmq); in link_print()
2333 u16 head = hskb ? msg_seqno(buf_msg(hskb)) : l->snd_nxt - 1; in link_print()
2334 u16 tail = l->snd_nxt - 1; in link_print()
2336 pr_info("%s Link <%s> state %x\n", str, l->name, l->state); in link_print()
2338 skb_queue_len(&l->transmq), head, tail, in link_print()
2339 skb_queue_len(&l->backlogq), l->snd_nxt, l->rcv_nxt); in link_print()
2640 void tipc_link_set_tolerance(struct tipc_link *l, u32 tol, in tipc_link_set_tolerance() argument
2643 l->tolerance = tol; in tipc_link_set_tolerance()
2644 if (l->bc_rcvlink) in tipc_link_set_tolerance()
2645 l->bc_rcvlink->tolerance = tol; in tipc_link_set_tolerance()
2646 if (link_is_up(l)) in tipc_link_set_tolerance()
2647 tipc_link_build_proto_msg(l, STATE_MSG, 0, 0, 0, tol, 0, xmitq); in tipc_link_set_tolerance()
2650 void tipc_link_set_prio(struct tipc_link *l, u32 prio, in tipc_link_set_prio() argument
2653 l->priority = prio; in tipc_link_set_prio()
2654 tipc_link_build_proto_msg(l, STATE_MSG, 0, 0, 0, 0, prio, xmitq); in tipc_link_set_prio()
2657 void tipc_link_set_abort_limit(struct tipc_link *l, u32 limit) in tipc_link_set_abort_limit() argument
2659 l->abort_limit = limit; in tipc_link_set_abort_limit()
2662 char *tipc_link_name_ext(struct tipc_link *l, char *buf) in tipc_link_name_ext() argument
2664 if (!l) in tipc_link_name_ext()
2666 else if (link_is_bc_sndlink(l)) in tipc_link_name_ext()
2668 else if (link_is_bc_rcvlink(l)) in tipc_link_name_ext()
2670 "broadcast-receiver, peer %x", l->addr); in tipc_link_name_ext()
2672 memcpy(buf, l->name, TIPC_MAX_LINK_NAME); in tipc_link_name_ext()
2690 int tipc_link_dump(struct tipc_link *l, u16 dqueues, char *buf) in tipc_link_dump() argument
2698 if (!l) { in tipc_link_dump()
2703 i += scnprintf(buf, sz, "link data: %x", l->addr); in tipc_link_dump()
2704 i += scnprintf(buf + i, sz - i, " %x", l->state); in tipc_link_dump()
2705 i += scnprintf(buf + i, sz - i, " %u", l->in_session); in tipc_link_dump()
2706 i += scnprintf(buf + i, sz - i, " %u", l->session); in tipc_link_dump()
2707 i += scnprintf(buf + i, sz - i, " %u", l->peer_session); in tipc_link_dump()
2708 i += scnprintf(buf + i, sz - i, " %u", l->snd_nxt); in tipc_link_dump()
2709 i += scnprintf(buf + i, sz - i, " %u", l->rcv_nxt); in tipc_link_dump()
2710 i += scnprintf(buf + i, sz - i, " %u", l->snd_nxt_state); in tipc_link_dump()
2711 i += scnprintf(buf + i, sz - i, " %u", l->rcv_nxt_state); in tipc_link_dump()
2712 i += scnprintf(buf + i, sz - i, " %x", l->peer_caps); in tipc_link_dump()
2713 i += scnprintf(buf + i, sz - i, " %u", l->silent_intv_cnt); in tipc_link_dump()
2714 i += scnprintf(buf + i, sz - i, " %u", l->rst_cnt); in tipc_link_dump()
2717 i += scnprintf(buf + i, sz - i, " %u", l->acked); in tipc_link_dump()
2719 list = &l->transmq; in tipc_link_dump()
2727 list = &l->deferdq; in tipc_link_dump()
2735 list = &l->backlogq; in tipc_link_dump()
2743 list = l->inputq; in tipc_link_dump()
2753 i += tipc_list_dump(&l->transmq, false, buf + i); in tipc_link_dump()
2758 l->backlog[TIPC_LOW_IMPORTANCE].len, in tipc_link_dump()
2759 l->backlog[TIPC_MEDIUM_IMPORTANCE].len, in tipc_link_dump()
2760 l->backlog[TIPC_HIGH_IMPORTANCE].len, in tipc_link_dump()
2761 l->backlog[TIPC_CRITICAL_IMPORTANCE].len, in tipc_link_dump()
2762 l->backlog[TIPC_SYSTEM_IMPORTANCE].len); in tipc_link_dump()
2763 i += tipc_list_dump(&l->backlogq, false, buf + i); in tipc_link_dump()
2767 i += tipc_list_dump(&l->deferdq, false, buf + i); in tipc_link_dump()
2771 i += tipc_list_dump(l->inputq, false, buf + i); in tipc_link_dump()
2775 i += tipc_list_dump(&l->wakeupq, false, buf + i); in tipc_link_dump()