netdev - Re: [PATCH] bonding: allow TSO being set on bonding master

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Message-ID: <CAHXqBFLnPQnd2a17B4_UKpiL70BzkFMWzocM-4mr88TYoG6Jcw@mail.gmail.com>
Date:	Thu, 16 May 2013 07:45:05 +0200
From:	Michał Mirosław <mirqus@...il.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	David Miller <davem@...emloft.net>,
	netdev <netdev@...r.kernel.org>, Jay Vosburgh <fubar@...ibm.com>,
	Maciej Żenczykowski <maze@...gle.com>,
	Andy Gospodarek <andy@...yhouse.net>,
	Tom Herbert <therbert@...gle.com>,
	Neal Cardwell <ncardwell@...gle.com>,
	Yuchung Cheng <ycheng@...gle.com>
Subject: Re: [PATCH] bonding: allow TSO being set on bonding master

2013/5/16 Eric Dumazet <eric.dumazet@...il.com>:
> On Wed, 2013-05-15 at 16:18 -0700, Eric Dumazet wrote:
>> On Thu, 2013-05-16 at 00:55 +0200, Michał Mirosław wrote:
>>
>> > Have you tried adding it to NETIF_F_ONE_FOR_ALL set? 'Team' and bridge
>> > could then also use it.
>>
>> Good point, I am testing this, thanks !
> Hmm, this doesnt work.
>
> # ethtool -k bond0 | grep tcp-segmentation-offload
> tcp-segmentation-offload: off
> # ethtool -K bond0 tso on
> # ethtool -k bond0 | grep tcp-segmentation-offload
> tcp-segmentation-offload: off
>
> Do you have something different in mind ?

This should enable GSO if at least one slave has it on. What features
(tx-tcp*) the slaves have?

Best Regards,
Michał Mirosław
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