vhost: add flag for built-in virtio driver

[dpdk.git] / lib / librte_vhost / virtio_net.c

diff --git a/lib/librte_vhost/virtio_net.c b/lib/librte_vhost/virtio_net.c
index edfab3b..700aca7 100644 (file)
--- a/lib/librte_vhost/virtio_net.c
+++ b/lib/librte_vhost/virtio_net.c
@@ -703,6 +703,13 @@ rte_vhost_enqueue_burst(int vid, uint16_t queue_id,
        if (!dev)
                return 0;
 
+       if (unlikely(!(dev->flags & VIRTIO_DEV_BUILTIN_VIRTIO_NET))) {
+               RTE_LOG(ERR, VHOST_DATA,
+                       "(%d) %s: built-in vhost net backend is disabled.\n",
+                       dev->vid, __func__);
+               return 0;
+       }
+
        if (dev->features & (1 << VIRTIO_NET_F_MRG_RXBUF))
                return virtio_dev_merge_rx(dev, queue_id, pkts, count);
        else
@@ -1128,6 +1135,13 @@ rte_vhost_dequeue_burst(int vid, uint16_t queue_id,
        if (!dev)
                return 0;
 
+       if (unlikely(!(dev->flags & VIRTIO_DEV_BUILTIN_VIRTIO_NET))) {
+               RTE_LOG(ERR, VHOST_DATA,
+                       "(%d) %s: built-in vhost net backend is disabled.\n",
+                       dev->vid, __func__);
+               return 0;
+       }
+
        if (unlikely(!is_valid_virt_queue_idx(queue_id, 1, dev->nr_vring))) {
                RTE_LOG(ERR, VHOST_DATA, "(%d) %s: invalid virtqueue idx %d.\n",
                        dev->vid, __func__, queue_id);