[dpdk-stable] [PATCH 7/8] net/ring: do not count unsent packets as errors

[Ferruh Yigit]

On 7/25/2019 10:14 AM, David Marchand wrote:
> err_pkts reflects the number of packets that the driver did not manage
> to send.
> This is a temporary situation, those packets are not freed and the
> application can still retry to send them later.
> Hence, we can't count them as transmit failed.
> 
> Fixes: e1e4017751f1 ("ring: add new driver")
> Cc: stable at dpdk.org
> 
> Signed-off-by: David Marchand <david.marchand at redhat.com>
> ---
>  drivers/net/ring/rte_eth_ring.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/drivers/net/ring/rte_eth_ring.c b/drivers/net/ring/rte_eth_ring.c
> index eb347bc..eef7606 100644
> --- a/drivers/net/ring/rte_eth_ring.c
> +++ b/drivers/net/ring/rte_eth_ring.c
> @@ -172,7 +172,7 @@ static int
>  eth_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
>  {
>  	unsigned int i;
> -	unsigned long rx_total = 0, tx_total = 0, tx_err_total = 0;
> +	unsigned long rx_total = 0, tx_total = 0;
>  	const struct pmd_internals *internal = dev->data->dev_private;
>  
>  	for (i = 0; i < RTE_ETHDEV_QUEUE_STAT_CNTRS &&
> @@ -185,12 +185,10 @@ eth_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
>  			i < dev->data->nb_tx_queues; i++) {
>  		stats->q_opackets[i] = internal->tx_ring_queues[i].tx_pkts.cnt;
>  		tx_total += stats->q_opackets[i];
> -		tx_err_total += internal->tx_ring_queues[i].err_pkts.cnt;

Can we remove 'err_pkts' completely, it seems already calculated wrong?

>  	}
>  
>  	stats->ipackets = rx_total;
>  	stats->opackets = tx_total;
> -	stats->oerrors = tx_err_total;
>  
>  	return 0;
>  }
>