netdev - Re: [patch net-next v3 04/17] net: introduce generic switch devices support

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Message-ID: <20141125215402.GA3912@casper.infradead.org>
Date:	Tue, 25 Nov 2014 21:54:02 +0000
From:	Thomas Graf <tgraf@...g.ch>
To:	Jamal Hadi Salim <jhs@...atatu.com>
Cc:	Jiri Pirko <jiri@...nulli.us>, netdev@...r.kernel.org,
	davem@...emloft.net, nhorman@...driver.com, andy@...yhouse.net,
	dborkman@...hat.com, ogerlitz@...lanox.com, jesse@...ira.com,
	pshelar@...ira.com, azhou@...ira.com, ben@...adent.org.uk,
	stephen@...workplumber.org, jeffrey.t.kirsher@...el.com,
	vyasevic@...hat.com, xiyou.wangcong@...il.com,
	john.r.fastabend@...el.com, edumazet@...gle.com, sfeldma@...il.com,
	f.fainelli@...il.com, roopa@...ulusnetworks.com,
	linville@...driver.com, jasowang@...hat.com, ebiederm@...ssion.com,
	nicolas.dichtel@...nd.com, ryazanov.s.a@...il.com,
	buytenh@...tstofly.org, aviadr@...lanox.com, nbd@...nwrt.org,
	alexei.starovoitov@...il.com, Neil.Jerram@...aswitch.com,
	ronye@...lanox.com, simon.horman@...ronome.com,
	alexander.h.duyck@...hat.com, john.ronciak@...el.com,
	mleitner@...hat.com, shrijeet@...il.com, gospo@...ulusnetworks.com,
	bcrl@...ck.org
Subject: Re: [patch net-next v3 04/17] net: introduce generic switch devices
 support

On 11/25/14 at 12:08pm, Jamal Hadi Salim wrote:
> On 11/25/14 11:49, Jiri Pirko wrote:
> 
> >
> >What does it do? "L3 switching"?
> >
> 
> Absolutely not - that is too easy;-> Why not just a mellanox
> chip for that? (Testing if Aviad is awake). But flows and associated
> constructs apply.

It would definitely help if you could expose some more details on the
"some network processor" you have. We're all very eager ;-)

> I think this interface is usable for example to offload to user space
> ala DPDK and friends just as it would be for ASICs or standard NIC
> offload (which we already have with fdb offload).
> I dont know what a good name is - but switch looks incorrect.

I'm with Jiri but I agree it's not a perfect fit. I doubt there is but
if you can come up with something that fits better I'm open to it.

I considered "dataplane" or "dp" for a bit but it's quite generic as
well.
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