Improve tunnel interface creation performance

[vpp.git] / src / vnet / vxlan / vxlan.c

diff --git a/src/vnet/vxlan/vxlan.c b/src/vnet/vxlan/vxlan.c
index 5926062..b0a186e 100644 (file)
--- a/src/vnet/vxlan/vxlan.c
+++ b/src/vnet/vxlan/vxlan.c
@@ -44,15 +44,10 @@ static u8 * format_decap_next (u8 * s, va_list * args)
 {
   u32 next_index = va_arg (*args, u32);
 
-  switch (next_index)
-    {
-    case VXLAN_INPUT_NEXT_DROP:
-      return format (s, "drop");
-    case VXLAN_INPUT_NEXT_L2_INPUT:
-      return format (s, "l2");
-    default:
-      return format (s, "index %d", next_index);
-    }
+  if (next_index == VXLAN_INPUT_NEXT_DROP)
+    return format (s, "drop");
+  else
+    return format (s, "index %d", next_index);
   return s;
 }
 
@@ -61,18 +56,20 @@ u8 * format_vxlan_tunnel (u8 * s, va_list * args)
   vxlan_tunnel_t * t = va_arg (*args, vxlan_tunnel_t *);
   vxlan_main_t * ngm = &vxlan_main;
 
-  s = format (s, "[%d] src %U dst %U vni %d sw_if_index %d ",
+  s = format (s, "[%d] src %U dst %U vni %d fib-idx %d sw-if-idx %d ",
               t - ngm->tunnels,
               format_ip46_address, &t->src, IP46_TYPE_ANY,
               format_ip46_address, &t->dst, IP46_TYPE_ANY,
-              t->vni, t->sw_if_index);
+              t->vni, t->encap_fib_index, t->sw_if_index);
+
+  s = format (s, "encap-dpo-idx %d ", t->next_dpo.dpoi_index);
+
+  if (PREDICT_FALSE (t->decap_next_index != VXLAN_INPUT_NEXT_L2_INPUT))
+    s = format (s, "decap-next-%U ", format_decap_next, t->decap_next_index);
 
-  if (ip46_address_is_multicast (&t->dst))
-    s = format (s, "mcast_sw_if_index %d ", t->mcast_sw_if_index);
+  if (PREDICT_FALSE (ip46_address_is_multicast (&t->dst)))
+    s = format (s, "mcast-sw-if-idx %d ", t->mcast_sw_if_index);
 
-  s = format (s, "encap_fib_index %d fib_entry_index %d decap_next %U\n", 
-             t->encap_fib_index, t->fib_entry_index,
-             format_decap_next, t->decap_next_index);
   return s;
 }
 
@@ -82,14 +79,6 @@ static u8 * format_vxlan_name (u8 * s, va_list * args)
   return format (s, "vxlan_tunnel%d", dev_instance);
 }
 
-static uword dummy_interface_tx (vlib_main_t * vm,
-                                 vlib_node_runtime_t * node,
-                                 vlib_frame_t * frame)
-{
-  clib_warning ("you shouldn't be here, leaking buffers...");
-  return frame->n_vectors;
-}
-
 static clib_error_t *
 vxlan_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
 {
@@ -104,7 +93,6 @@ VNET_DEVICE_CLASS (vxlan_device_class,static) = {
   .name = "VXLAN",
   .format_device_name = format_vxlan_name,
   .format_tx_trace = format_vxlan_encap_trace,
-  .tx_function = dummy_interface_tx,
   .admin_up_down_function = vxlan_interface_admin_up_down,
 };
 
@@ -426,17 +414,22 @@ int vnet_vxlan_add_del_tunnel
            (&im->sw_if_counters[VNET_INTERFACE_COUNTER_DROP], sw_if_index);
          vnet_interface_counter_unlock(im);
         }
-      else 
+      else
         {
           hw_if_index = vnet_register_interface
             (vnm, vxlan_device_class.index, t - vxm->tunnels,
              vxlan_hw_class.index, t - vxm->tunnels);
           hi = vnet_get_hw_interface (vnm, hw_if_index);
         }
-      
+
+      /* Set vxlan tunnel output node */
+      u32 encap_index = !is_ip6 ?
+         vxlan4_encap_node.index : vxlan6_encap_node.index;
+      vnet_set_interface_output_node (vnm, hw_if_index, encap_index);
+
       t->hw_if_index = hw_if_index;
       t->sw_if_index = sw_if_index = hi->sw_if_index;
-      
+
       vec_validate_init_empty (vxm->tunnel_index_by_sw_if_index, sw_if_index, ~0);
       vxm->tunnel_index_by_sw_if_index[sw_if_index] = t - vxm->tunnels;
 
@@ -444,16 +437,14 @@ int vnet_vxlan_add_del_tunnel
       vec_validate (l2im->configs, sw_if_index);
       l2im->configs[sw_if_index].feature_bitmap = L2INPUT_FEAT_DROP;
       l2im->configs[sw_if_index].bd_index = 0;
-      
+
       vnet_sw_interface_t * si = vnet_get_sw_interface (vnm, sw_if_index);
       si->flags &= ~VNET_SW_INTERFACE_FLAG_HIDDEN;
-      vnet_sw_interface_set_flags (vnm, sw_if_index, 
+      vnet_sw_interface_set_flags (vnm, sw_if_index,
                                    VNET_SW_INTERFACE_FLAG_ADMIN_UP);
 
       fib_node_init(&t->node, FIB_NODE_TYPE_VXLAN_TUNNEL);
       fib_prefix_t tun_dst_pfx;
-      u32 encap_index = !is_ip6 ?
-          vxlan4_encap_node.index : vxlan6_encap_node.index;
       vnet_flood_class_t flood_class = VNET_FLOOD_CLASS_TUNNEL_NORMAL;
 
       fib_prefix_from_ip46_addr(&t->dst, &tun_dst_pfx);
@@ -545,9 +536,6 @@ int vnet_vxlan_add_del_tunnel
          flood_class = VNET_FLOOD_CLASS_TUNNEL_MASTER;
        }
 
-      /* Set vxlan tunnel output node */
-      hi->output_node_index = encap_index;
-
       vnet_get_sw_interface (vnet_get_main(), sw_if_index)->flood_class = flood_class;
     }
   else