netdev - Re: Integration of Open vSwitch

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Message-ID: <1322658716.2243.12.camel@mojatatu>
Date:	Wed, 30 Nov 2011 08:11:56 -0500
From:	jamal <hadi@...erus.ca>
To:	Jesse Gross <jesse@...ira.com>
Cc:	Herbert Xu <herbert@...dor.apana.org.au>,
	netdev <netdev@...r.kernel.org>, dev@...nvswitch.org,
	David Miller <davem@...emloft.net>,
	Stephen Hemminger <shemminger@...tta.com>,
	Chris Wright <chrisw@...hat.com>,
	John Fastabend <john.r.fastabend@...el.com>,
	Eric Dumazet <eric.dumazet@...il.com>
Subject: Re: Integration of Open vSwitch

On Tue, 2011-11-29 at 22:25 -0800, Jesse Gross wrote:
> Hi Herbert and Jamal (and everyone else),
> 
> Sorry about starting yet another thread but the other one went in so
> many directions that I think a lot of things got lost in it.  

Good idea ;->

> As I
> mentioned before, I'd like to have a bit of a design discussion of
> what it would look like if Open vSwitch were to use some of the
> existing components (and really focus on just that).  There were a
> number of suggestions made about using parts of the bridge, tc,
> netfilter, etc. and some of them overlap or conflict so I don't quite
> have a coherent solution in mind.  Would you guys mind walking through
> what each of you envision it looking like?

I'll try my TL;DR version:
My opinion is the classifier action code needs refactoring. I have no
doubt that it goes in as is it will eventually look like the one
we already have. From the evolution of that code i can already see 
that is where it is going. I really dont see need to have two competing
interfaces in that aspect. If you decide to go that way I will be
happy to help review and make suggestions.

My !TL;DR version will include details on other things like:
- bridging, the scalability of kernel->user packet redirect etc.
But youve seen some of those views.

cheers,
jamal

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