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Date:	Thu, 07 Jun 2007 09:35:52 -0700
From:	Ben Greear <greearb@...delatech.com>
To:	Pavel Emelianov <xemul@...nvz.org>
CC:	David Miller <davem@...emloft.net>,
	Linux Netdev List <netdev@...r.kernel.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Patrick McHardy <kaber@...sh.net>,
	Daniel Lezcano <dlezcano@...ibm.com>,
	Stephen Hemminger <shemminger@...ux-foundation.org>,
	Kirill Korotaev <dev@...nvz.org>,
	Linux Containers <containers@...ts.osdl.org>
Subject: Re: [PATCH] Virtual ethernet tunnel (v.2)

Pavel Emelianov wrote:

> Hmm... The loopback must be doing bad things then. It first calls
> eth_type_trans and then accounts for the new skb->len.

Perhaps it should be changed.  e100 calculates the entire
frame as far as I can tell, and e1000 and tg3 do it in hardware
(not sure what all they are counting, but I *think* it includes
the header...)

VLANs calculate before pulling it's header, though the ethernet
header has already been pulled by the time VLAN sees the skb.

Thanks,
Ben

-- 
Ben Greear <greearb@...delatech.com>
Candela Technologies Inc  http://www.candelatech.com

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