[dpdk-dev] [PATCH] net/virtio-user: do not reset virtqueues for split ring

Maxime Coquelin maxime.coquelin at redhat.com
Wed Feb 5 08:52:17 CET 2020



On 2/5/20 3:11 AM, Tiwei Bie wrote:
> Add missing braces to avoid resetting virtqueues unconditionally
> during reconnection.
> 
> Fixes: 6ebbf4109f35 ("net/virtio-user: fix packed ring server mode")
> 
> Signed-off-by: Tiwei Bie <tiwei.bie at intel.com>
> ---
> Cc: Xuan Ding <xuan.ding at intel.com>
> 
>  drivers/net/virtio/virtio_user_ethdev.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/net/virtio/virtio_user_ethdev.c b/drivers/net/virtio/virtio_user_ethdev.c
> index f3b35d1bd..e61af4068 100644
> --- a/drivers/net/virtio/virtio_user_ethdev.c
> +++ b/drivers/net/virtio/virtio_user_ethdev.c
> @@ -89,10 +89,11 @@ virtio_user_server_reconnect(struct virtio_user_dev *dev)
>  	dev->features &= dev->device_features;
>  
>  	/* For packed ring, resetting queues is required in reconnection. */
> -	if (vtpci_packed_queue(hw))
> +	if (vtpci_packed_queue(hw)) {
>  		PMD_INIT_LOG(NOTICE, "Packets on the fly will be dropped"
>  				" when packed ring reconnecting.");
>  		virtio_user_reset_queues_packed(eth_dev);
> +	}
>  
>  	ret = virtio_user_start_device(dev);
>  	if (ret < 0)
> 

Oops, thank you Tiwei for fixing it!

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

Maxime



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