Route-table implementation for (Free)BSD

[openvswitch] / lib / cfm.c

diff --git a/lib/cfm.c b/lib/cfm.c
index 38de68f79ce0d94aecb3a1bbda04daa7335b48c1..670f03710f0c6f37de43a4bb680f796b03794658 100644 (file)
--- a/lib/cfm.c
+++ b/lib/cfm.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2010, 2011, 2012 Nicira Networks.
+ * Copyright (c) 2010, 2011, 2012 Nicira, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -62,19 +62,19 @@ static const uint8_t eth_addr_ccm_x[6] = {
 #define CCM_RDI_MASK 0x80
 #define CFM_HEALTH_INTERVAL 6
 struct ccm {
-    uint8_t  mdlevel_version; /* MD Level and Version */
-    uint8_t  opcode;
-    uint8_t  flags;
-    uint8_t  tlv_offset;
+    uint8_t mdlevel_version; /* MD Level and Version */
+    uint8_t opcode;
+    uint8_t flags;
+    uint8_t tlv_offset;
     ovs_be32 seq;
     ovs_be16 mpid;
-    uint8_t  maid[CCM_MAID_LEN];
+    uint8_t maid[CCM_MAID_LEN];
 
     /* Defined by ITU-T Y.1731 should be zero */
     ovs_be16 interval_ms_x;      /* Transmission interval in ms. */
     ovs_be64 mpid64;             /* MPID in extended mode. */
     uint8_t opdown;              /* Operationally down. */
-    uint8_t  zero[5];
+    uint8_t zero[5];
 
     /* TLV space. */
     uint8_t end_tlv;
@@ -118,7 +118,7 @@ struct cfm {
                                  received. */
     int health_interval;      /* Number of fault_intervals since health was
                                  recomputed. */
-
+    long long int last_tx;    /* Last CCM transmission time. */
 };
 
 /* Remote MPs represent foreign network entities that are configured to have
@@ -299,6 +299,7 @@ cfm_create(const char *name)
     cfm->remote_opup = true;
     cfm->fault_override = -1;
     cfm->health = -1;
+    cfm->last_tx = 0;
     return cfm;
 }
 
@@ -404,6 +405,7 @@ cfm_run(struct cfm *cfm)
         }
 
         timer_set_duration(&cfm->fault_timer, interval);
+        VLOG_DBG("%s: new fault interval", cfm->name);
     }
 }
 
@@ -465,6 +467,16 @@ cfm_compose_ccm(struct cfm *cfm, struct ofpbuf *packet,
     if (hmap_is_empty(&cfm->remote_mps)) {
         ccm->flags |= CCM_RDI_MASK;
     }
+
+    if (cfm->last_tx) {
+        long long int delay = time_msec() - cfm->last_tx;
+        if (delay > (cfm->ccm_interval_ms * 3 / 2)) {
+            VLOG_WARN("%s: long delay of %lldms (expected %dms) sending CCM"
+                      " seq %"PRIu32, cfm->name, delay, cfm->ccm_interval_ms,
+                      cfm->seq);
+        }
+    }
+    cfm->last_tx = time_msec();
 }
 
 void
@@ -606,7 +618,7 @@ cfm_process_heartbeat(struct cfm *cfm, const struct ofpbuf *p)
         if (ccm_rdi) {
             cfm_fault |= CFM_FAULT_RDI;
             VLOG_DBG("%s: RDI bit flagged from RMP %"PRIu64, cfm->name,
-                     rmp->mpid);
+                     ccm_mpid);
         }
 
         VLOG_DBG("%s: received CCM (seq %"PRIu32") (mpid %"PRIu64")"