[PATCH v2] net/virtio: fixed missing next flag when sending packets in packed mode

[Maxime Coquelin]

Hi,

On 10/10/23 09:12, Maxime Coquelin wrote:
> Hi,
> 
> Thanks for investigating the issue and proposing a fix!
> 
> On 10/10/23 04:08, liufengjiang.0426 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
>>
>>>> Fix the warning that a single line of commit log exceeds 75 chars
> 
> The changelog should not be part of the commit message.
> 
>>
>> Bugzilla ID: 1295
>> Fixes: 892dc798fa9c ("net/virtio: implement Tx path for packed queues")
>>
>> Signed-off-by: liufengjiang.0426 <liufengjiang.0426 at bytedance.com>
> 
> Could you please sign-off with your full name?

Gentle reminder. No need to resubmit, just reply here with your full
name.

Thanks!
Maxime

> 
> 
>> ---
> 
> The changelog should be placed here.
> 
>>   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) {
> 
> Otherwise, the fix look good to me.
> With above small changes, it will be good for me.
> 
> Thanks,
> Maxime