From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH net-next v3] filter: introduce SKF_AD_VLAN_TPID BPF
 extension
Date: Tue, 24 Mar 2015 15:26:41 -0400 (EDT)
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From: Michal Sekletar <msekleta@redhat.com>
Date: Tue, 24 Mar 2015 14:48:41 +0100

> If vlan offloading takes place then vlan header is removed from frame
> and its contents, both vlan_tci and vlan_proto, is available to user
> space via TPACKET interface. However, only vlan_tci can be used in BPF
> filters.
> 
> This commit introduces a new BPF extension. It makes possible to load
> the value of vlan_proto (vlan TPID) to register A. Support for classic
> BPF and eBPF is being added, analogous to skb->protocol.
> 
> Cc: Daniel Borkmann <daniel@iogearbox.net>
> Cc: Alexei Starovoitov <ast@plumgrid.com>
> Cc: Jiri Pirko <jpirko@redhat.com>
> 
> Signed-off-by: Michal Sekletar <msekleta@redhat.com>

Applied.