The current implementation is not standards compliant and inferior to
BFD in every way. This patch marks it as deprecated so it may be
removed in the future.
Signed-off-by: Ethan Jackson <et...@nicira.com>
---
lib/cfm.c | 7 +++++++
vswitchd/vswitch.xml | 4 ++++
2 files changed, 11 insertions(+)
diff --git a/lib/cfm.c b/lib/cfm.c
index 23c1c6f..ce3636c 100644
--- a/lib/cfm.c
+++ b/lib/cfm.c
@@ -347,8 +347,15 @@ cfm_status_changed(struct cfm *cfm) OVS_REQUIRES(mutex)
struct cfm *
cfm_create(const struct netdev *netdev) OVS_EXCLUDED(mutex)
{
+ static struct ovsthread_once once = OVSTHREAD_ONCE_INITIALIZER;
struct cfm *cfm;
+ if (ovsthread_once_start(&once)) {
+ VLOG_WARN("CFM is deprecated and will likely be removed in future"
+ " releases. Consider switching to BFD");
+ ovsthread_once_done(&once);
+ }
+
cfm = xzalloc(sizeof *cfm);
cfm->netdev = netdev_ref(netdev);
cfm->name = netdev_get_name(cfm->netdev);
diff --git a/vswitchd/vswitch.xml b/vswitchd/vswitch.xml
index 37a33a6..f3dc0af 100644
--- a/vswitchd/vswitch.xml
+++ b/vswitchd/vswitch.xml
@@ -2387,6 +2387,10 @@
<group title="Connectivity Fault Management">
<p>
+ This feature is deprecated and may be removed in future releases.
+ </p>
+
+ <p>
802.1ag Connectivity Fault Management (CFM) allows a group of
Maintenance Points (MPs) called a Maintenance Association (MA) to
detect connectivity problems with each other. MPs within a MA should
--
1.9.1
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