netdev - Re: [PATCH] Virtual ethernet device (v2.1)

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Date:	Wed, 11 Jul 2007 17:32:22 +0400
From:	Pavel Emelianov <xemul@...nvz.org>
To:	Patrick McHardy <kaber@...sh.net>
CC:	David Miller <davem@...emloft.net>,
	Linux Netdev List <netdev@...r.kernel.org>,
	Daniel Lezcano <dlezcano@...ibm.com>,
	Ben Greear <greearb@...delatech.com>, devel@...nvz.org,
	Kirill Korotaev <dev@...nvz.org>
Subject: Re: [PATCH] Virtual ethernet device (v2.1)

Patrick McHardy wrote:
> Pavel Emelianov wrote:
>> Patrick McHardy wrote:
>>
>>> Mhh doing it later means dealing with compatibility issues, which
>>> is why I'm asking now. We currently support IFLA_NAME, IFLA_MTU,
>>
>> Oh, I see.
>>
>>
>>> IFLA_TXQLEN, IFLA_WEIGTH, IFLA_OPERSTATE and IFLA_LINKMODE, and
>>> with my patch additionally IFLA_ADDRESS and IFLA_BROADCAST.
>>> AFAICT they are all applicable for the partner link as well.
>>
>> Agree. Maybe it is better to make some generic routine to create the
>> device with the parameters specified in the netlink packet. Then the
>> generic code creates one end of a tunnel and calls ->new_link callback.
>> This callback extracts the PARTNER packet part and calls this generic
>> routine to create the second pair.
> 
> 
> Something like that. Moving the part between NLM_F_CREATE and the
> ops->newlink call of rtnl_newlink to a new function should work.
> 
> For now you could even parse the IFLA_PARTNER attribute and nested
> IFLA_NAME/IFLA_ADDRESS attributes yourself and ignore the rest,
> this will at least leave us the option of handling it generically
> later.

OK. I'll try to make the generic call. Could you please send me the
patches with IFLA_ADDRESS support for booth kernel and ip utility.

Thanks,
Pavel

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