linux-kernel - Re: problem with IPoA (CLIP), NAT, and VLANS

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Message-ID: <499AAD5B.8060706@trash.net>
Date:	Tue, 17 Feb 2009 13:28:11 +0100
From:	Patrick McHardy <kaber@...sh.net>
To:	Karl Hiramoto <karl@...amoto.org>
CC:	Jarek Poplawski <jarkao2@...il.com>, netdev@...r.kernel.org,
	netfilter@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: problem with IPoA (CLIP),  NAT, and VLANS

Karl Hiramoto wrote:
> What Patrick,  said may be the case,  that the underlaying atm driver is
> not specifying the headroom.   The driver is ported to 2.6.28 from
> 2.6.11 based on the BSD licensed intel libaries:
> http://www.intel.com/design/network/products/npfamily/download_ixp400.htm

If those are the ones I think they are, I'm not too surprised ...

> Where underneath a bunch of layers the skb is allocated with kmalloc like:
> 
> size = PAGE_ALIGN (size + CACHE_LINE_SIZE);
> order = get_order (size);
> page = alloc_pages (GFP_KERNEL, order);

How does it initialize the netdev struct?

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