netdev - Re: [PATCH] vlan: allow TSO setting on vlan interfaces

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Message-ID: <1278571587.2543.9.camel@edumazet-laptop>
Date:	Thu, 08 Jul 2010 08:46:27 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Ben Hutchings <bhutchings@...arflare.com>
Cc:	David Miller <davem@...emloft.net>,
	netdev <netdev@...r.kernel.org>,
	Patrick McHardy <kaber@...sh.net>
Subject: Re: [PATCH] vlan: allow TSO setting on vlan interfaces

Le mercredi 07 juillet 2010 à 18:25 +0100, Ben Hutchings a écrit :
> On Wed, 2010-07-07 at 19:14 +0200, Eric Dumazet wrote:
> > When we need to shape traffic with low speeds, we need to disable tso on
> > network interface :
> > 
> > ethtool -K eth0.2240 tso off
> > 
> > It seems vlan interfaces miss the set_tso() ethtool method.
> > Propagating tso changes from lower device is not always wanted, some
> > vlan want TSO on, other want TSO off.
> 
> But it should not be possible to enable TSO if the underlying device
> doesn't support it.

Yes indeed, I'll provide a more generic patch, thanks !


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