netdev - Re: [PATCH 4/4] lguest: Use GSO/IFF_VNET

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Date:	Thu, 26 Jun 2008 01:45:18 +1000
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	virtualization@...ts.linux-foundation.org
Cc:	Max Krasnyansky <maxk@...lcomm.com>, markmc@...hat.com,
	netdev@...r.kernel.org, Herbert Xu <herbert@...dor.apana.org.au>
Subject: Re: [PATCH 4/4] lguest: Use GSO/IFF_VNET_HDR extensions on tun/tap

On Thursday 26 June 2008 00:32:12 Rusty Russell wrote:
> (Might not apply cleanly to current Linus, there are other lguest things
>  going on, but this gives you the idea at least).
...
> +	if (ioctl(netfd, TUNSETFEATURES,
> +		  TUN_F_CSUM|TUN_F_TSO4|TUN_F_TSO6|TUN_F_TSO_ECN) != 0)
> +		err(1, "Could not set features for tun device");

This should be TUNSETOFFLOAD of course.  I renamed it at the last minute, 
because TUNSETFEATURES implies symmetry with TUNGETFEATURES, which is 
completely different.

Cheers,
Rusty.
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