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-rw-r--r--vnet/vnet/unix/tuntap.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/vnet/vnet/unix/tuntap.c b/vnet/vnet/unix/tuntap.c
index b3fbc7f32e7..48d5dc2387d 100644
--- a/vnet/vnet/unix/tuntap.c
+++ b/vnet/vnet/unix/tuntap.c
@@ -141,6 +141,9 @@ tuntap_tx (vlib_main_t * vm,
u32 * buffers = vlib_frame_args (frame);
uword n_packets = frame->n_vectors;
tuntap_main_t * tm = &tuntap_main;
+ vnet_main_t *vnm = vnet_get_main ();
+ vnet_interface_main_t *im = &vnm->interface_main;
+ u32 n_bytes = 0;
int i;
for (i = 0; i < n_packets; i++)
@@ -181,8 +184,17 @@ tuntap_tx (vlib_main_t * vm,
if (writev (tm->dev_net_tun_fd, tm->iovecs, vec_len (tm->iovecs)) < l)
clib_unix_warning ("writev");
+
+ n_bytes += l;
}
+ /* Update tuntap interface output stats. */
+ vlib_increment_combined_counter (im->combined_sw_if_counters
+ + VNET_INTERFACE_COUNTER_TX,
+ vm->cpu_index,
+ tm->sw_if_index, n_packets, n_bytes);
+
+
/** The normal interface path flattens the buffer chain */
if (tm->have_normal_interface)
vlib_buffer_free_no_next (vm, buffers, n_packets);