[dpdk-dev] [PATCH v4 2/5] app/testpmd: add Rx buffer size display in queue info query

[Ferruh Yigit]

On 9/5/2020 10:07 AM, Chengchang Tang wrote:
> Add Rx buffer size to queue info querry cmd so that the user can get the
> buffer length used by HW queue for receiving packets.
> 
> Signed-off-by: Chengchang Tang <tangchengchang at huawei.com>
> Reviewed-by: Wei Hu (Xavier) <xavier.huwei at huawei.com>
> ---
>   app/test-pmd/config.c | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c
> index 30bee33..b432ac6 100644
> --- a/app/test-pmd/config.c
> +++ b/app/test-pmd/config.c
> @@ -452,6 +452,7 @@ rx_queue_infos_display(portid_t port_id, uint16_t queue_id)
>   		(qinfo.conf.rx_deferred_start != 0) ? "on" : "off");
>   	printf("\nRX scattered packets: %s",
>   		(qinfo.scattered_rx != 0) ? "on" : "off");
> +	printf("\nRX buffer size: %hu", qinfo.rx_buf_size);

Since this field is optional for PMD to fill, it may be confusing to 
display buffer size as "0".
What do you think print this value when "qinfo.rx_buf_size != 0"?