netdev - Re: crash with bridge and inconsistent handling of NETDEV_TX

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Date:	Tue, 20 Apr 2010 21:21:36 -0400 (EDT)
From:	Mikulas Patocka <mpatocka@...hat.com>
To:	David Miller <davem@...emloft.net>
cc:	netdev@...r.kernel.org, kaber@...sh.net
Subject: Re: crash with bridge and inconsistent handling of NETDEV_TX_OK



On Tue, 20 Apr 2010, David Miller wrote:

> From: David Miller <davem@...emloft.net>
> Date: Tue, 20 Apr 2010 18:14:34 -0700 (PDT)
> 
> > From: Mikulas Patocka <mpatocka@...hat.com>
> > Date: Tue, 20 Apr 2010 21:10:04 -0400 (EDT)
> > 
> >> I see, but GRO is turned off on my interfaces, according to ethtool.
> > 
> > GRO is just a flag bit, so it's possible that if your kernel is too
> > old ethtool will always show that it's off.
> 
> Actually, looking back at your original report, are you confusing
> "large-receive-offload" as reported by ethtool with GRO?
> 
> They are completely seperate things.
> 
> "large-receive-offload" is LRO, whereas GRO is something done
> in software and something entirely different.

Posting once more. Both LRO and GRO are off. And it is default.

Mikulas

Offload parameters for eth0:
rx-checksumming: on
tx-checksumming: on
scatter-gather: on
tcp-segmentation-offload: off
udp-fragmentation-offload: off
generic-segmentation-offload: on
generic-receive-offload: off
large-receive-offload: off

Offload parameters for eth1:
rx-checksumming: on
tx-checksumming: on
scatter-gather: on
tcp-segmentation-offload: off
udp-fragmentation-offload: off
generic-segmentation-offload: on
generic-receive-offload: off
large-receive-offload: off

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