netdev - Re: [PATCH] r8169: fix offloaded tx checksum for small packets.

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Message-ID: <519564D6.8050409@cogentembedded.com>
Date:	Fri, 17 May 2013 02:59:34 +0400
From:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:	Francois Romieu <romieu@...zoreil.com>
CC:	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
	Hayes Wang <hayeswang@...ltek.com>,
	Stefan Bader <stefan.bader@...onical.com>,
	Holger Hoffstätte 
	<holger.hoffstaette@...glemail.com>
Subject: Re: [PATCH] r8169: fix offloaded tx checksum for small packets.

Hello.

On 05/17/2013 02:38 AM, Francois Romieu wrote:

> 8168evl offloaded checksums are wrong since
> e5195c1f31f399289347e043d6abf3ffa80f0005

     Please, also specify that commit's summary line in parens.

> pads small packets to
> 60 bytes (without ethernet checksum). Observed UDP checksums are
> typically wrong by the count of added bytes.
>
> It isn't worth compensating. Let's checksum by hand, then pad.
>
> Signed-off-by: Francois Romieu <romieu@...zoreil.com>
> Cc: Hayes Wang <hayeswang@...ltek.com>
> Tested-by: Holger Hoffstätte <holger.hoffstaette@...glemail.com>

WBR, Sergei

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