IP Multicast FIB (mfib)

[vpp.git] / src / vnet / ip / ip6_input.c

diff --git a/src/vnet/ip/ip6_input.c b/src/vnet/ip/ip6_input.c
index bbc2ceb..2030608 100644 (file)
--- a/src/vnet/ip/ip6_input.c
+++ b/src/vnet/ip/ip6_input.c
@@ -64,6 +64,7 @@ typedef enum
 {
   IP6_INPUT_NEXT_DROP,
   IP6_INPUT_NEXT_LOOKUP,
+  IP6_INPUT_NEXT_LOOKUP_MULTICAST,
   IP6_INPUT_NEXT_ICMP_ERROR,
   IP6_INPUT_N_NEXT,
 } ip6_input_next_t;
@@ -142,12 +143,27 @@ ip6_input (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
          sw_if_index0 = vnet_buffer (p0)->sw_if_index[VLIB_RX];
          sw_if_index1 = vnet_buffer (p1)->sw_if_index[VLIB_RX];
 
-         arc0 =
-           ip6_address_is_multicast (&ip0->dst_address) ?
-           lm->mcast_feature_arc_index : lm->ucast_feature_arc_index;
-         arc1 =
-           ip6_address_is_multicast (&ip1->dst_address) ?
-           lm->mcast_feature_arc_index : lm->ucast_feature_arc_index;
+         if (PREDICT_FALSE (ip6_address_is_multicast (&ip0->dst_address)))
+           {
+             arc0 = lm->mcast_feature_arc_index;
+             next0 = IP6_INPUT_NEXT_LOOKUP_MULTICAST;
+           }
+         else
+           {
+             arc0 = lm->ucast_feature_arc_index;
+             next0 = IP6_INPUT_NEXT_LOOKUP;
+           }
+
+         if (PREDICT_FALSE (ip6_address_is_multicast (&ip1->dst_address)))
+           {
+             arc1 = lm->mcast_feature_arc_index;
+             next1 = IP6_INPUT_NEXT_LOOKUP_MULTICAST;
+           }
+         else
+           {
+             arc1 = lm->ucast_feature_arc_index;
+             next1 = IP6_INPUT_NEXT_LOOKUP;
+           }
 
          vnet_buffer (p0)->ip.adj_index[VLIB_RX] = ~0;
          vnet_buffer (p1)->ip.adj_index[VLIB_RX] = ~0;
@@ -240,9 +256,17 @@ ip6_input (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
          ip0 = vlib_buffer_get_current (p0);
 
          sw_if_index0 = vnet_buffer (p0)->sw_if_index[VLIB_RX];
-         arc0 =
-           ip6_address_is_multicast (&ip0->dst_address) ?
-           lm->mcast_feature_arc_index : lm->ucast_feature_arc_index;
+         if (PREDICT_FALSE (ip6_address_is_multicast (&ip0->dst_address)))
+           {
+             arc0 = lm->mcast_feature_arc_index;
+             next0 = IP6_INPUT_NEXT_LOOKUP_MULTICAST;
+           }
+         else
+           {
+             arc0 = lm->ucast_feature_arc_index;
+             next0 = IP6_INPUT_NEXT_LOOKUP;
+           }
+
          vnet_buffer (p0)->ip.adj_index[VLIB_RX] = ~0;
          vnet_feature_arc_start (arc0, sw_if_index0, &next0, p0);
 
@@ -313,6 +337,7 @@ VLIB_REGISTER_NODE (ip6_input_node) = {
     [IP6_INPUT_NEXT_DROP] = "error-drop",
     [IP6_INPUT_NEXT_LOOKUP] = "ip6-lookup",
     [IP6_INPUT_NEXT_ICMP_ERROR] = "ip6-icmp-error",
+    [IP6_INPUT_NEXT_LOOKUP_MULTICAST] = "ip6-mfib-forward-lookup",
   },
 
   .format_buffer = format_ip6_header,