tart a virtual machine with its backend tap device attached to a brought up
linux bridge.
If we delete the linux bridge when vm is still running, we'll get the following
error when
trying to create a ovs bridge with the same name.
The reason is that ovs-router subsystem add the linux bridge into netdev_shash,
but does
not remove it when the bridge is deleted in the situation. When the bridge is
deleted, ovs
will receive a RTM_DELLINK msg, take this chance to remove the bridge in
netdev_shash.
ovs-vsctl: Error detected while setting up 'br-eth'. See ovs-vswitchd log for
details.
ovs-vswitchd log:
2017-05-11T03:45:25.293Z|00026|ofproto_dpif|INFO|system@ovs-system: Datapath
supports recirculation
2017-05-11T03:45:25.293Z|00027|ofproto_dpif|INFO|system@ovs-system: MPLS label
stack length probed as 1
2017-05-11T03:45:25.293Z|00028|ofproto_dpif|INFO|system@ovs-system: Datapath
supports unique flow ids
2017-05-11T03:45:25.293Z|00029|ofproto_dpif|INFO|system@ovs-system: Datapath
supports ct_state
2017-05-11T03:45:25.293Z|00030|ofproto_dpif|INFO|system@ovs-system: Datapath
supports ct_zone
2017-05-11T03:45:25.293Z|00031|ofproto_dpif|INFO|system@ovs-system: Datapath
supports ct_mark
2017-05-11T03:45:25.293Z|00032|ofproto_dpif|INFO|system@ovs-system: Datapath
supports ct_label
2017-05-11T03:45:25.364Z|00001|ofproto_dpif_upcall(handler226)|INFO|received
packet on unassociated datapath port 0
2017-05-11T03:45:25.368Z|00033|netdev_linux|WARN|ethtool command ETHTOOL_GFLAGS
on network device br-eth failed: No such device
2017-05-11T03:45:25.368Z|00034|dpif|WARN|system@ovs-system: failed to add
br-eth as port: No such device
2017-05-11T03:45:25.368Z|00035|bridge|INFO|bridge br-eth: using datapath ID
00002a51cf9f2841
2017-05-11T03:45:25.368Z|00036|connmgr|INFO|br-eth: added service controller
"punix:/var/run/openvswitch/br-eth.mgmt"
Signed-off-by: fukaige <fuka...@huawei.com>
---
lib/tnl-ports.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/lib/tnl-ports.c b/lib/tnl-ports.c
index 4a07dcb..5f5791c 100644
--- a/lib/tnl-ports.c
+++ b/lib/tnl-ports.c
@@ -21,6 +21,7 @@
#include <stddef.h>
#include <stdint.h>
#include <string.h>
+#include <linux/rtnetlink.h>
#include "classifier.h"
#include "openvswitch/dynamic-string.h"
@@ -33,6 +34,7 @@
#include "ovs-thread.h"
#include "unixctl.h"
#include "util.h"
+#include "rtnetlink.h"
static struct ovs_mutex mutex = OVS_MUTEX_INITIALIZER;
static struct classifier cls; /* Tunnel ports. */
@@ -499,11 +501,19 @@ tnl_port_map_run(void)
ovs_mutex_unlock(&mutex);
}
+static void
+rtnetlink_del_cb(const struct rtnetlink_change *change, void *aux OVS_UNUSED)
+{
+ if(change->nlmsg_type == RTM_DELLINK)
+ tnl_port_map_delete_ipdev(change->ifname);
+}
+
void
tnl_port_map_init(void)
{
classifier_init(&cls, flow_segment_u64s);
ovs_list_init(&addr_list);
ovs_list_init(&port_list);
+ rtnetlink_notifier_create(rtnetlink_del_cb, NULL);
unixctl_command_register("tnl/ports/show", "-v", 0, 1, tnl_port_show,
NULL);
}
--
1.8.3.1
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