netdev - Re: curent state of GSO over IPv6 tunnel

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Message-ID: <1410776054.7106.141.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Mon, 15 Sep 2014 03:14:14 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Yuval Mintz <Yuval.Mintz@...gic.com>
Cc:	netdev <netdev@...r.kernel.org>
Subject: Re: curent state of GSO over IPv6 tunnel

On Mon, 2014-09-15 at 08:55 +0000, Yuval Mintz wrote:
> Hi,
> 
> Tried running simple scenarios using ipv6/ipv6 via gre-tunnel [ip6_gre].
> 
> When I've tried sniffing Tx traffic [tcpdump] I've noticed there were
> no aggregations being set, i.e., only MTU-sized packets reached NIC.
> 
> Looking at output of `ethtool -k', I can see `tx_gre_segmentation' is on.
> 
> What's the current state of the feature? Is it feasible and I'm missing
> some configuration, or is it yet an unsupported feature?

As far as I know, only bnx2x driver currently supports NETIF_F_GSO_GRE


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