[PATCH] net/virtio: fixed missing next flag when sending packets in packed mode

[Fengjiang Liu]

From: "liufengjiang.0426" <liufengjiang.0426 at bytedance.com>

When the packets is sent in packed mode, and the packets data and
virtio-header are divided into two desc, set the next flag of
virtio-header desc

Bugzilla ID: 1295
Fixes: 892dc798fa9c ("net/virtio: implement Tx path for packed queues")

Signed-off-by: Fengjiang Liu <liufengjiang.0426 at bytedance.com>
---
 drivers/net/virtio/virtqueue.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/virtio/virtqueue.h b/drivers/net/virtio/virtqueue.h
index 9d4aba11a3..4e9f2d0358 100644
--- a/drivers/net/virtio/virtqueue.h
+++ b/drivers/net/virtio/virtqueue.h
@@ -672,6 +672,7 @@ virtqueue_enqueue_xmit_packed(struct virtnet_tx *txvq, struct rte_mbuf *cookie,
 		 */
 		start_dp[idx].addr = txvq->hdr_mem + RTE_PTR_DIFF(&txr[idx].tx_hdr, txr);
 		start_dp[idx].len = vq->hw->vtnet_hdr_size;
+		head_flags |= VRING_DESC_F_NEXT;
 		hdr = (struct virtio_net_hdr *)&txr[idx].tx_hdr;
 		idx++;
 		if (idx >= vq->vq_nentries) {
-- 
2.37.0.windows.1