linux-kernel - Re: expected behavior of PF_PACKET on NETIF_F_HW_VLAN

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Date:	Thu, 01 Nov 2007 14:35:35 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	greearb@...delatech.com
Cc:	shemminger@...ux-foundation.org,
	djohnson+linux-kernel@...starentnetworks.com,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	bguo@...starentnetworks.com
Subject: Re: expected behavior of PF_PACKET on NETIF_F_HW_VLAN_RX device?

From: Ben Greear <greearb@...delatech.com>
Date: Thu, 01 Nov 2007 08:04:31 -0700

> David Miller wrote:
> > The hardware has stripped the VLAN header completely and has not
> > provided it to us at all.
> >   
> Do the NICs not save the QoS bits in the VLAN header anywhere that we could
> use to reconstitute the header?

You get the 16-bit VLAN tag.
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