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From: Simon Guinot <simon.guinot@sequanux.org>
To: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Andrew Lunn <andrew@lunn.ch>, Jason Cooper <jason@lakedaemon.net>,
	netdev@vger.kernel.org, Vincent Donnefort <vdonnefort@gmail.com>,
	Gregory Clement <gregory.clement@free-electrons.com>,
	linux-arm-kernel@lists.infradead.org,
	Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Subject: Re: [PATCH v2 0/3] Fix Ethernet jumbo frames support for Armada 370 and 38x
Date: Wed, 17 Jun 2015 19:22:17 +0200	[thread overview]
Message-ID: <20150617172217.GY4853@kw.sim.vm.gnt> (raw)
In-Reply-To: <20150617172458.3e373b8a@free-electrons.com>

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On Wed, Jun 17, 2015 at 05:24:58PM +0200, Thomas Petazzoni wrote:
> Dear Simon Guinot,
> 
> On Wed, 17 Jun 2015 15:19:19 +0200, Simon Guinot wrote:
> 
> > This patch series fixes the Ethernet jumbo frames support for the SoCs
> > Armada 370, 380 and 385. Unlike Armada XP, the Ethernet controller for
> > this SoCs don't support TCP/IP checksumming with a frame size larger
> > than 1600 bytes.
> > 
> > This patches should be applied to the -stable kernels 3.8 and onwards.
> 
> You should add a Fixes: tag to each commit to indicate which commit is
> being fixed by your patches.
> 
> Also, I was a bit surprised by your statement that Armada 38x is also
> affected by the problem, since Armada 38x is more recent than Armada
> XP. but indeed, according to the Armada 38x datasheet:
> 
>   IPv4 and TCP/UDP over IPv4/IPv6 checksum generation on transmit
>   frames for standard Ethernet packet size
> 
> While the Armada XP datasheet says:
> 
>   Long frames transmission (including jumbo frames), with
>   IPv4/v6/TCP/UDP checksum generation
> 
> So it seems like you're right about this!

At first, I though this was an error in the Armada 38x datasheet (maybe
a sloppy copy/paster). Therefore I have checked on an DB-88F6820-GP
board and then I can confirm that the Armada 38x is also affected.

Simon

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WARNING: multiple messages have this Message-ID (diff)
From: simon.guinot@sequanux.org (Simon Guinot)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 0/3] Fix Ethernet jumbo frames support for Armada 370 and 38x
Date: Wed, 17 Jun 2015 19:22:17 +0200	[thread overview]
Message-ID: <20150617172217.GY4853@kw.sim.vm.gnt> (raw)
In-Reply-To: <20150617172458.3e373b8a@free-electrons.com>

On Wed, Jun 17, 2015 at 05:24:58PM +0200, Thomas Petazzoni wrote:
> Dear Simon Guinot,
> 
> On Wed, 17 Jun 2015 15:19:19 +0200, Simon Guinot wrote:
> 
> > This patch series fixes the Ethernet jumbo frames support for the SoCs
> > Armada 370, 380 and 385. Unlike Armada XP, the Ethernet controller for
> > this SoCs don't support TCP/IP checksumming with a frame size larger
> > than 1600 bytes.
> > 
> > This patches should be applied to the -stable kernels 3.8 and onwards.
> 
> You should add a Fixes: tag to each commit to indicate which commit is
> being fixed by your patches.
> 
> Also, I was a bit surprised by your statement that Armada 38x is also
> affected by the problem, since Armada 38x is more recent than Armada
> XP. but indeed, according to the Armada 38x datasheet:
> 
>   IPv4 and TCP/UDP over IPv4/IPv6 checksum generation on transmit
>   frames for standard Ethernet packet size
> 
> While the Armada XP datasheet says:
> 
>   Long frames transmission (including jumbo frames), with
>   IPv4/v6/TCP/UDP checksum generation
> 
> So it seems like you're right about this!

At first, I though this was an error in the Armada 38x datasheet (maybe
a sloppy copy/paster). Therefore I have checked on an DB-88F6820-GP
board and then I can confirm that the Armada 38x is also affected.

Simon
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  reply	other threads:[~2015-06-17 17:22 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-06-17 13:19 [PATCH v2 0/3] Fix Ethernet jumbo frames support for Armada 370 and 38x Simon Guinot
2015-06-17 13:19 ` Simon Guinot
2015-06-17 13:19 ` [PATCH v2 1/3] net: mvneta: introduce compatible string "marvell,armada-xp-neta" Simon Guinot
2015-06-17 13:19   ` [PATCH v2 1/3] net: mvneta: introduce compatible string "marvell, armada-xp-neta" Simon Guinot
2015-06-17 15:12   ` [PATCH v2 1/3] net: mvneta: introduce compatible string "marvell,armada-xp-neta" Gregory CLEMENT
2015-06-17 15:12     ` [PATCH v2 1/3] net: mvneta: introduce compatible string "marvell, armada-xp-neta" Gregory CLEMENT
2015-06-17 15:15     ` Gregory CLEMENT
2015-06-17 15:15       ` Gregory CLEMENT
2015-06-17 17:01       ` Jason Cooper
2015-06-17 17:01         ` Jason Cooper
2015-06-17 20:43         ` Thomas Petazzoni
2015-06-17 20:43           ` Thomas Petazzoni
2015-06-17 21:39           ` Jason Cooper
2015-06-17 21:39             ` Jason Cooper
2015-06-17 21:39             ` Jason Cooper
2015-06-18  7:31             ` Thomas Petazzoni
2015-06-18  7:31               ` Thomas Petazzoni
2015-06-19 12:32         ` Simon Guinot
2015-06-19 12:32           ` Simon Guinot
2015-06-25  9:13           ` Simon Guinot
2015-06-25  9:13             ` Simon Guinot
2015-06-25 13:20             ` Jason Cooper
2015-06-25 13:20               ` Jason Cooper
2015-06-29 13:03               ` Gregory CLEMENT
2015-06-29 13:03                 ` Gregory CLEMENT
2015-06-29 13:03   ` [PATCH v2 1/3] net: mvneta: introduce compatible string "marvell,armada-xp-neta" Gregory CLEMENT
2015-06-29 13:03     ` [PATCH v2 1/3] net: mvneta: introduce compatible string "marvell, armada-xp-neta" Gregory CLEMENT
2015-06-17 13:19 ` [PATCH v2 2/3] ARM: mvebu: update Ethernet compatible string for Armada XP Simon Guinot
2015-06-17 13:19   ` Simon Guinot
2015-06-29 13:04   ` Gregory CLEMENT
2015-06-29 13:04     ` Gregory CLEMENT
2015-06-17 13:19 ` [PATCH v2 3/3] ARM: mvebu: disable IP checksum with jumbo frames for Armada 370 Simon Guinot
2015-06-17 13:19   ` Simon Guinot
2015-06-17 15:24 ` [PATCH v2 0/3] Fix Ethernet jumbo frames support for Armada 370 and 38x Thomas Petazzoni
2015-06-17 15:24   ` Thomas Petazzoni
2015-06-17 17:22   ` Simon Guinot [this message]
2015-06-17 17:22     ` Simon Guinot
2015-06-17 20:43     ` Thomas Petazzoni
2015-06-17 20:43       ` Thomas Petazzoni

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