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From: "Zhang, Qi Z" <qi.z.zhang@intel.com>
To: "Zhang, AlvinX" <alvinx.zhang@intel.com>,
	"Xing, Beilei" <beilei.xing@intel.com>,
	"Guo, Junfeng" <junfeng.guo@intel.com>,
	"ktraynor@redhat.com" <ktraynor@redhat.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>, "stable@dpdk.org" <stable@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH v3] net/i40e: fix Rx packet statistics
Date: Fri, 8 Oct 2021 06:17:36 +0000	[thread overview]
Message-ID: <1fef42b9d2ab4d8d829f010013dd957b@intel.com> (raw)
In-Reply-To: <20210930051957.12628-1-alvinx.zhang@intel.com>



> -----Original Message-----
> From: Zhang, AlvinX <alvinx.zhang@intel.com>
> Sent: Thursday, September 30, 2021 1:20 PM
> To: Xing, Beilei <beilei.xing@intel.com>; Guo, Junfeng
> <junfeng.guo@intel.com>; ktraynor@redhat.com; Zhang, Qi Z
> <qi.z.zhang@intel.com>
> Cc: dev@dpdk.org; Zhang, AlvinX <alvinx.zhang@intel.com>; stable@dpdk.org
> Subject: [PATCH v3] net/i40e: fix Rx packet statistics
> 
> Some packets are discarded by the NIC because they are larger than the MTU,
> these packets should be counted as "RX error" instead of "RX packet", for
> example:
> 
>   pkt1 = Ether()/IP()/Raw('x' * 1400)
>   pkt2 = Ether()/IP()/Raw('x' * 1500)
> 
>   ---------------- Forward statistics for port 0 -----------------
>   RX-packets: 2 RX-dropped: 0 RX-total: 2
>   TX-packets: 1 TX-dropped: 0 TX-total: 1
>   ----------------------------------------------------------------
> 
>   Here the packet pkt2 has been discarded, but still was counted
>   by "RX-packets"
> 
> The register 'GL_RXERR1' can count above discarded packets.
> This patch adds reading and calculation of the 'GL_RXERR1' counter when
> reporting DPDK statistics.
> 
> Fixes: f4a91c38b4ad ("i40e: add extended stats")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Alvin Zhang <alvinx.zhang@intel.com>

Acked-by: Qi Zhang <qi.z.zhang@intel.com>

Applied to dpdk-next-net-intel.

Thanks
Qi


      reply	other threads:[~2021-10-08  6:17 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-26  7:57 [dpdk-dev] [PATCH] " Alvin Zhang
2021-09-27 16:00 ` Kevin Traynor
2021-09-28  2:12   ` Zhang, AlvinX
2021-09-28  8:53     ` Kevin Traynor
2021-09-28  3:22 ` [dpdk-dev] [PATCH v2] " Alvin Zhang
2021-09-28 11:16   ` Zhang, Qi Z
2021-09-29  1:33     ` Zhang, AlvinX
2021-09-30  5:19   ` [dpdk-dev] [PATCH v3] " Alvin Zhang
2021-10-08  6:17     ` Zhang, Qi Z [this message]

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