vhost: fix batch enqueue only handle few packets

After enqueue function finished, packet index has been increased. Batch
enqueue function should retrieve mbuf structure pointed by that index.

Fixes: 0294211bb6dc ("vhost: optimize packed ring enqueue")

Signed-off-by: Marvin Liu <yong.liu@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>

diff --git a/lib/librte_vhost/virtio_net.c b/lib/librte_vhost/virtio_net.c
index cb54ebe..21c3117 100644 (file)
--- a/lib/librte_vhost/virtio_net.c
+++ b/lib/librte_vhost/virtio_net.c
@@ -1159,7 +1159,8 @@ virtio_dev_rx_packed(struct virtio_net *dev,
                rte_prefetch0(&vq->desc_packed[vq->last_avail_idx]);
 
                if (remained >= PACKED_BATCH_SIZE) {
-                       if (!virtio_dev_rx_batch_packed(dev, vq, pkts)) {
+                       if (!virtio_dev_rx_batch_packed(dev, vq,
+                                                       &pkts[pkt_idx])) {
                                pkt_idx += PACKED_BATCH_SIZE;
                                remained -= PACKED_BATCH_SIZE;
                                continue;