From: "Lluís Batlle i Rossell" <viric@viric.name>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
"Carles Pagès" <page@cubata.homelinux.net>,
linux-arm-kernel@lists.infradead.org
Subject: Re: Regarding tx-nocache-copy in the Sheevaplug
Date: Mon, 13 Oct 2014 14:32:17 +0200 [thread overview]
Message-ID: <20141013123217.GF1972@vicerveza.homeunix.net> (raw)
In-Reply-To: <1413203171.9362.81.camel@edumazet-glaptop2.roam.corp.google.com>
On Mon, Oct 13, 2014 at 05:26:11AM -0700, Eric Dumazet wrote:
> On Mon, 2014-10-13 at 12:52 +0200, Lluís Batlle i Rossell wrote:
> > Hello,
> >
> > on the 7th of January 2014 ths patch was applied:
> > https://lkml.org/lkml/2014/1/7/307
> >
> > [PATCH v2] net: Do not enable tx-nocache-copy by default
> >
> > In the Sheevaplug (ARM Feroceon 88FR131 from Marvell) this made packets to be
> > sent corrupted. I think this machine has something special about the cache.
> >
> > Enabling back this tx-nocache-copy (as it used to be before the patch) the
> > transfers work fine again. I think that most people, encountering this problem,
> > completely disable the tx offload instead of enabling back this setting.
> >
> > Is this an ARM kernel problem regarding this platform?
>
> Which NIC and driver is this exactly ?
According to dmesg in 3.10.1:
[ 7.858872] mv643xx_eth: MV-643xx 10/100/1000 ethernet driver version 1.4
[ 7.866001] mv643xx_eth_port mv643xx_eth_port.0 eth0: port 0 with MAC address 00:50:43:01:d1:bb
Regards,
Lluís.
next prev parent reply other threads:[~2014-10-13 12:32 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-13 10:52 Regarding tx-nocache-copy in the Sheevaplug Lluís Batlle i Rossell
2014-10-13 12:26 ` Eric Dumazet
2014-10-13 12:32 ` Lluís Batlle i Rossell [this message]
2014-10-13 14:21 ` Andrew Lunn
2014-10-13 14:31 ` Lluís Batlle i Rossell
2014-10-13 14:49 ` Eric Dumazet
2014-10-13 15:48 ` Lluís Batlle i Rossell
2014-10-15 21:57 ` Benjamin Poirier
2014-10-15 22:45 ` Eric Dumazet
2014-10-16 17:34 ` Benjamin Poirier
2014-10-16 17:46 ` Lluís Batlle i Rossell
2014-10-17 20:55 ` Benjamin Poirier
2014-10-16 17:48 ` Eric Dumazet
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