Format vnet_buffer_t l2 feature bitmap

Change-Id: Iad3120ab6466b77875efc89ccb49f6d22e36e62a
Signed-off-by: Dave Barach <dave@barachs.net>
diff --git a/src/vnet/interface_format.c b/src/vnet/interface_format.c
index 98be872..5b20866 100644
--- a/src/vnet/interface_format.c
+++ b/src/vnet/interface_format.c
@@ -39,6 +39,8 @@
 
 #include <vnet/vnet.h>
 #include <vppinfra/bitmap.h>
+#include <vnet/l2/l2_input.h>
+#include <vnet/l2/l2_output.h>
 
 u8 *
 format_vnet_sw_interface_flags (u8 * s, va_list * args)
@@ -464,6 +466,12 @@
   vec_add1 (s, '\n');
 
   s = format (s,
+	      "l2.feature_bitmap_input: %U, L2.feature_bitmap_output: %U",
+	      format_l2_input_features, o->l2.feature_bitmap, 0,
+	      format_l2_output_features, o->l2.feature_bitmap, 0);
+  vec_add1 (s, '\n');
+
+  s = format (s,
 	      "l2t.next_index: %d, l2t.session_index: %d",
 	      (u32) (o->l2t.next_index), o->l2t.session_index);
   vec_add1 (s, '\n');