virtio: add packet buffering on tx

[vpp.git] / src / vnet / devices / virtio / pci.c

diff --git a/src/vnet/devices/virtio/pci.c b/src/vnet/devices/virtio/pci.c
index df8e2bd..71d813a 100644 (file)
--- a/src/vnet/devices/virtio/pci.c
+++ b/src/vnet/devices/virtio/pci.c
@@ -1154,6 +1154,19 @@ virtio_pci_create_if (vlib_main_t * vm, virtio_pci_create_if_args_t * args)
 
   vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, vif->hw_if_index);
   hw->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_INT_MODE;
+
+  if (args->virtio_flags & VIRTIO_FLAG_BUFFERING)
+    {
+      error = virtio_set_packet_buffering (vif, args->buffering_size);
+      if (error)
+       {
+         args->rv = VNET_API_ERROR_INIT_FAILED;
+         virtio_log_error (vif,
+                           "error encountered during packet buffering init");
+         goto error;
+       }
+    }
+
   vnet_hw_interface_set_input_node (vnm, vif->hw_if_index,
                                    virtio_input_node.index);
   u32 i = 0;