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Date: Thu, 2 Feb 2017 13:34:27 +0100
From: Markus Trippelsdorf <markus@...ppelsdorf.de>
To: Eric Dumazet <eric.dumazet@...il.com>
Cc: netdev@...r.kernel.org,
Marcelo Ricardo Leitner <marcelo.leitner@...il.com>
Subject: Re: "TCP: eth0: Driver has suspect GRO implementation, TCP
performance may be compromised." message with "ethtool -K eth0 gro off"
On 2017.02.02 at 04:32 -0800, Eric Dumazet wrote:
> On Thu, 2017-02-02 at 12:52 +0100, Markus Trippelsdorf wrote:
> > Hi,
> >
> > from time to time I see the following warning in my kernel log:
> >
> > TCP: eth0: Driver has suspect GRO implementation, TCP performance may be compromised.
> >
> > This happens although I run "/usr/sbin/ethtool -K eth0 gro off" in my
> > local boot script.
> > What is the warning trying to tell me?
> >
>
> Please report
>
> ethtool -i eth0
driver: ATL1E
version: 1.0.0.7-NAPI
firmware-version: L1e
expansion-rom-version:
bus-info: 0000:02:00.0
supports-statistics: no
supports-test: no
supports-eeprom-access: no
supports-register-dump: yes
supports-priv-flags: no
--
Markus
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