From 1fc07f3e1541cc49cc159beb3fdefc5013570eda Mon Sep 17 00:00:00 2001 From: Jon Paul Maloy Date: Mon, 11 Jul 2016 16:08:37 -0400 Subject: tipc: reset all unicast links when broadcast send link fails In test situations with many nodes and a heavily stressed system we have observed that the transmission broadcast link may fail due to an excessive number of retransmissions of the same packet. In such situations we need to reset all unicast links to all peers, in order to reset and re-synchronize the broadcast link. In this commit, we add a new function tipc_bearer_reset_all() to be used in such situations. The function scans across all bearers and resets all their pertaining links. Acked-by: Ying Xue Signed-off-by: Jon Maloy Signed-off-by: David S. Miller --- net/tipc/bearer.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'net/tipc/bearer.c') diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c index bf8f05c3eb82..a597708ae381 100644 --- a/net/tipc/bearer.c +++ b/net/tipc/bearer.c @@ -330,6 +330,21 @@ static int tipc_reset_bearer(struct net *net, struct tipc_bearer *b) return 0; } +/* tipc_bearer_reset_all - reset all links on all bearers + */ +void tipc_bearer_reset_all(struct net *net) +{ + struct tipc_net *tn = tipc_net(net); + struct tipc_bearer *b; + int i; + + for (i = 0; i < MAX_BEARERS; i++) { + b = rcu_dereference_rtnl(tn->bearer_list[i]); + if (b) + tipc_reset_bearer(net, b); + } +} + /** * bearer_disable * -- cgit v1.2.3