linux-kernel - Re: [PATCH v2 net 6/6] net: mvneta: enable IP checksum with jumbo frames for Armada 38x on Port0

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Message-ID: <20151126193301.67259f76@free-electrons.com>
Date:	Thu, 26 Nov 2015 19:33:01 +0100
From:	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
To:	Marcin Wojtas <mw@...ihalf.com>
Cc:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	netdev@...r.kernel.org, davem@...emloft.net,
	linux@....linux.org.uk, sebastian.hesselbarth@...il.com,
	andrew@...n.ch, jason@...edaemon.net,
	gregory.clement@...e-electrons.com, simon.guinot@...uanux.org,
	nadavh@...vell.com, alior@...vell.com, xswang@...vell.com,
	myair@...vell.com, nitroshift@...oo.com, jaz@...ihalf.com,
	tn@...ihalf.com, <stable@...r.kernel.org>
Subject: Re: [PATCH v2 net 6/6] net: mvneta: enable IP checksum with jumbo
 frames for Armada 38x on Port0

Marcin,

On Thu, 26 Nov 2015 19:08:13 +0100, Marcin Wojtas wrote:
> The Ethernet controller found in the Armada 38x SoC's family support
> TCP/IP checksumming with frame sizes larger than 1600 bytes, however
> only on port 0.
> 
> This commit enables it by setting 'tx-csum-limit' to 9800B in
> 'ethernet@...00' node.
> 
> Signed-off-by: Marcin Wojtas <mw@...ihalf.com>
> Cc: <stable@...r.kernel.org> # v3.18+

This and the previous patch is not a fix, and has no business going in
stable. It is enabling a better functionality, but it is clearly not a
fix.

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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