vhost: fix dequeue offload support

[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 b75c93c..3c6f1a5 100644 (file)
--- a/lib/librte_vhost/virtio_net.c
+++ b/lib/librte_vhost/virtio_net.c
@@ -987,7 +987,8 @@ copy_desc_to_mbuf(struct virtio_net *dev, struct vhost_virtqueue *vq,
                        mbuf_avail = cpy_len;
                } else {
                        if (likely(cpy_len > MAX_BATCH_LEN ||
-                                  copy_nb >= vq->size)) {
+                                  copy_nb >= vq->size ||
+                                  (hdr && cur == m))) {
                                rte_memcpy(rte_pktmbuf_mtod_offset(cur, void *,
                                                                   mbuf_offset),
                                           (void *)((uintptr_t)(desc_addr +