[dpdk-stable] [PATCH 1/5] net/virtio: fix Tx desc cleanup for packed ring

[Maxime Coquelin]

On 2/19/19 11:59 AM, Tiwei Bie wrote:
> We should try to cleanup at least the 'need' number of descs.
> 
> Fixes: 892dc798fa9c ("net/virtio: implement Tx path for packed queues")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Tiwei Bie <tiwei.bie at intel.com>
> ---
>   drivers/net/virtio/virtio_rxtx.c | 1 -
>   1 file changed, 1 deletion(-)
> 
> diff --git a/drivers/net/virtio/virtio_rxtx.c b/drivers/net/virtio/virtio_rxtx.c
> index 4c701c514..b07ceac6d 100644
> --- a/drivers/net/virtio/virtio_rxtx.c
> +++ b/drivers/net/virtio/virtio_rxtx.c
> @@ -1943,7 +1943,6 @@ virtio_xmit_pkts_packed(void *tx_queue, struct rte_mbuf **tx_pkts,
>   
>   		/* Positive value indicates it need free vring descriptors */
>   		if (unlikely(need > 0)) {
> -			need = RTE_MIN(need, (int)nb_pkts);
>   			virtio_xmit_cleanup_packed(vq, need);
>   			need = slots - vq->vq_free_cnt;
>   			if (unlikely(need > 0)) {
> 

Reviewed-by: Maxime Coquelin <maxime.coquelin at redhat.com>

Thanks,
Maxime