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From: Andrew Rybchenko <arybchenko@solarflare.com>
To: Stephen Hemminger <stephen@networkplumber.org>,
	Qi Zhang <qi.z.zhang@intel.com>,
	Thomas Monjalon <thomas@monjalon.net>,
	Ferruh Yigit <ferruh.yigit@intel.com>
Cc: <jingjing.wu@intel.com>, <wenzhuo.lu@intel.com>, <dev@dpdk.org>,
	<stable@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH] net/iavf: fix Rx bytes stats
Date: Mon, 5 Aug 2019 13:52:06 +0300	[thread overview]
Message-ID: <120cd9d5-117a-0de7-b6b4-25736540cc96@solarflare.com> (raw)
In-Reply-To: <20190716215537.60762ee6@hermes.lan>

On 7/17/19 7:55 AM, Stephen Hemminger wrote:
> On Wed, 17 Jul 2019 12:31:00 +0800
> Qi Zhang <qi.z.zhang@intel.com> wrote:
>
>> Exclude 4 bytes CRC for rx bytes stats.
>> This also aligned Rx stats calculation with PF.
>>
>> Fixes: f4a41a6953af ("net/avf: support stats")
>> Cc: stable@dpdk.org
>>
>> Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
>> ---
>>   drivers/net/iavf/iavf_ethdev.c | 1 +
>>   1 file changed, 1 insertion(+)
>>
>> diff --git a/drivers/net/iavf/iavf_ethdev.c b/drivers/net/iavf/iavf_ethdev.c
>> index 53dc05c78..fe75e86ab 100644
>> --- a/drivers/net/iavf/iavf_ethdev.c
>> +++ b/drivers/net/iavf/iavf_ethdev.c
>> @@ -1047,6 +1047,7 @@ iavf_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
>>   		stats->imissed = pstats->rx_discards;
>>   		stats->oerrors = pstats->tx_errors + pstats->tx_discards;
>>   		stats->ibytes = pstats->rx_bytes;
>> +		stats->ibytes -= stats->ipackets * RTE_ETHER_CRC_LEN;
>>   		stats->obytes = pstats->tx_bytes;
>>   	} else {
>>   		PMD_DRV_LOG(ERR, "Get statistics failed");
> Correct, DPDK statistics should not include CRC.

Stephen, Thomas, Ferruh,

is it documented somewhere? May be we should update fields
description and rte_eth_stats_get() which mentions these fields
as well to highlight it?

Thanks,
Andrew.

      parent reply	other threads:[~2019-08-05 10:52 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-17  4:31 Qi Zhang
2019-07-17  4:55 ` Stephen Hemminger
2019-07-19  0:17   ` Zhang, Qi Z
2019-08-05 10:52   ` Andrew Rybchenko [this message]

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