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From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH v2] vlan: allow TSO setting on vlan interfaces
Date: Thu, 08 Jul 2010 23:10:14 -0700 (PDT)
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From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 08 Jul 2010 11:39:31 +0200

> 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
> vlans want TSO on, others want TSO off.
> 
> Before enabling TSO, we must check real device supports it.
> 
> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>

Applied to net-next-2.6, thanks Eric.