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

[Maxime Coquelin]

On 10/17/23 09:26, Fengjiang Liu wrote:

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.0...@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) {

Applied to next-virtio/for-next-net

Thanks,
Maxime