The admin can choose whether or not to delete flows from datapaths when
they stop ovs-vswitchd. The goal of not deleting flows it to allow
existing traffic to continue being forwarded until ovs-vswitchd is
restarted. Until now, regardless of this choice, ovs-vswitchd has
always deleted tunnel ports from the datapath. When flows are not
deleted, this nevertheless prevents tunnel traffic from being forwarded.
With this patch, ovs-vswitchd no longer deletes tunnel ports in the
case where it does not delete flows, allowing tunnel traffic to continue
being forwarded.
Reported-by: Antonin Bas <abas@vmware.com>
Tested-by: Antonin Bas <abas@vmware.com>
Tested-by: txfh2007 <txfh2007@aliyun.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>
udpif_destroy(backer->udpif);
- SIMAP_FOR_EACH (node, &backer->tnl_backers) {
- dpif_port_del(backer->dpif, u32_to_odp(node->data), false);
+ if (del) {
+ SIMAP_FOR_EACH (node, &backer->tnl_backers) {
+ dpif_port_del(backer->dpif, u32_to_odp(node->data), false);
+ }
}
simap_destroy(&backer->tnl_backers);
ovs_rwlock_destroy(&backer->odp_to_ofport_lock);