commit da1f2c7cffb0de4ef05a48ffd107214eb11fa45f
author John Lo <loj@cisco.com> Fri Mar 24 20:11:15 2017 -0400
committer Damjan Marion <dmarion.lists@gmail.com> Tue Mar 28 12:29:10 2017 +0000
tree 56267e11122a2de325d204b8ad5fb49884eec93c
parent 6792ec059696a358b6c98d8d86e9740b34c01e24

Implement MAC Flush for BD or Interface from the L2FIB

Allow non-static MACs in the L2FIB which is associated with an
interface or a bridge domain (BD) be flushed. MAC flush are
initiated automatically when an interface is removed from a BD
or when a BD is deleted. MAC flush can also be invoked manually
via the following CLI:
 l2fib mac-flush interface <if-name>
 l2fib mac-flush bridge-domain <bd-id>

Change-Id: Ie33243622834810a765f48ebcd22bdb8e8fc87a4
Signed-off-by: John Lo <loj@cisco.com>

src/vnet/l2/l2_learn.c

diff --git a/src/vnet/l2/l2_learn.c b/src/vnet/l2/l2_learn.c
index afe7f47..faed0d6 100644
--- a/src/vnet/l2/l2_learn.c
+++ b/src/vnet/l2/l2_learn.c
@@ -140,7 +140,11 @@
       counter_base[L2LEARN_ERROR_HIT] += 1;
       if (PREDICT_FALSE (result0->fields.timestamp != timestamp))
 	result0->fields.timestamp = timestamp;
-
+      if (PREDICT_FALSE
+	  (result0->fields.int_sn != vnet_buffer (b0)->l2.int_sn))
+	result0->fields.int_sn = vnet_buffer (b0)->l2.int_sn;
+      if (PREDICT_FALSE (result0->fields.bd_sn != vnet_buffer (b0)->l2.bd_sn))
+	result0->fields.bd_sn = vnet_buffer (b0)->l2.bd_sn;
     }
   else if (result0->raw == ~0)
     {
@@ -167,6 +171,8 @@
 	  result0->raw = 0;	/* clear all fields */
 	  result0->fields.sw_if_index = sw_if_index0;
 	  result0->fields.timestamp = timestamp;
+	  result0->fields.bd_sn = vnet_buffer (b0)->l2.bd_sn;
+	  result0->fields.int_sn = vnet_buffer (b0)->l2.int_sn;
 	  kv.key = key0->raw;
 	  kv.value = result0->raw;
 
@@ -204,6 +210,8 @@
 	  result0->raw = 0;	/* clear all fields */
 	  result0->fields.sw_if_index = sw_if_index0;
 	  result0->fields.timestamp = timestamp;
+	  result0->fields.bd_sn = vnet_buffer (b0)->l2.bd_sn;
+	  result0->fields.int_sn = vnet_buffer (b0)->l2.int_sn;
 
 	  kv.key = key0->raw;
 	  kv.value = result0->raw;