netdev - Re: [ovs-dev] [RFC: add openvswitch actions using BPF 9/9] ofproto-dpif-xlate: generate BPF output action (Hack)

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Message-ID: <20150205142959.GE5546@pox.localdomain>
Date:	Thu, 5 Feb 2015 15:29:59 +0100
From:	Thomas Graf <tgraf@...ronetworks.com>
To:	Andy Zhou <azhou@...ira.com>
Cc:	dev@...nvswitch.com, netdev@...r.kernel.org
Subject: Re: [ovs-dev] [RFC: add openvswitch actions using BPF 9/9]
 ofproto-dpif-xlate: generate BPF output action (Hack)

On 02/04/15 at 02:49pm, Andy Zhou wrote:
> This is a hack in xlate code to always generate both BPF output
> and the original output action. Since the currnet BPF output 'action'
> simply generate a kenrel log message about the output port number.
> 
> With this patch, Every time datapath output a packet, it also generate
> log about the port number in the kernel log.

This sounds great. Having the possibility the overwrite existing
datapath actions with BPF programs sounds like an excellent first
step towards BPF usage in the datapath.
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