diff --git a/src/vnet/devices/virtio/virtio.h b/src/vnet/devices/virtio/virtio.h
index b00e1ec..acefc38 100644
--- a/src/vnet/devices/virtio/virtio.h
+++ b/src/vnet/devices/virtio/virtio.h
@@ -20,6 +20,7 @@
 
 #include <vnet/devices/virtio/virtio_std.h>
 #include <vnet/devices/virtio/vhost_std.h>
+#include <vnet/devices/virtio/virtio_buffering.h>
 #include <vnet/gso/gro.h>
 
 #define foreach_virtio_if_flag		\
@@ -76,6 +77,7 @@
   u16 last_used_idx;
   u16 last_kick_avail_idx;
   u32 call_file_index;
+  virtio_vring_buffering_t *buffering;
   gro_flow_table_t *flow_table;
 } virtio_vring_t;
 
@@ -123,6 +125,7 @@
 
     CLIB_CACHE_LINE_ALIGN_MARK (cacheline1);
   int packet_coalesce;
+  int packet_buffering;
   u32 dev_instance;
   u32 numa_node;
   u64 remote_features;
@@ -203,6 +206,7 @@
 extern void virtio_show (vlib_main_t * vm, u32 * hw_if_indices, u8 show_descr,
 			 u32 type);
 extern void virtio_set_packet_coalesce (virtio_if_t * vif);
+clib_error_t *virtio_set_packet_buffering (virtio_if_t * vif, u16 size);
 extern void virtio_pci_legacy_notify_queue (vlib_main_t * vm,
 					    virtio_if_t * vif, u16 queue_id);
 extern void virtio_pci_modern_notify_queue (vlib_main_t * vm,