netdev - Re: Open vSwitch Design

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Message-Id: <20111125.012517.2221372383643417980.davem@davemloft.net>
Date:	Fri, 25 Nov 2011 01:25:17 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	shemminger@...tta.com, jhs@...atatu.com, hadi@...erus.ca,
	jesse@...ira.com, netdev@...r.kernel.org, dev@...nvswitch.org,
	chrisw@...hat.com, herbert@...dor.hengli.com.au,
	john.r.fastabend@...el.com, jpettit@...ira.com
Subject: Re: Open vSwitch Design

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Fri, 25 Nov 2011 07:18:03 +0100

> Le jeudi 24 novembre 2011 à 21:20 -0800, Stephen Hemminger a écrit :
> 
>> The problem is that there are two flow classifiers, one in OpenVswitch
>> in the kernel, and the other in the user space flow manager. I think the
>> issue is that the two have different code.
> 
> We have kind of same duplication in kernel already :)
> 
> __skb_get_rxhash() and net/sched/cls_flow.c contain roughly the same
> logic...
> 
> Maybe its time to factorize the thing, eventually use it in a third
> component (Open vSwitch...)

Yes.
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