netdev - Re: [patch net-next RFC 10/12] openvswitch: add support for datapath hardware offload

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Message-ID: <20140826152217.GA1843@nanopsycho.lan>
Date:	Tue, 26 Aug 2014 17:22:17 +0200
From:	Jiri Pirko <jiri@...nulli.us>
To:	Jamal Hadi Salim <jhs@...atatu.com>
Cc:	Roopa Prabhu <roopa@...ulusnetworks.com>,
	Thomas Graf <tgraf@...g.ch>,
	John Fastabend <john.fastabend@...il.com>,
	Scott Feldman <sfeldma@...ulusnetworks.com>,
	netdev <netdev@...r.kernel.org>,
	David Miller <davem@...emloft.net>,
	Neil Horman <nhorman@...driver.com>,
	Andy Gospodarek <andy@...yhouse.net>,
	dborkman <dborkman@...hat.com>, ogerlitz <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, f.fainelli@...il.com, linville@...driver.com,
	dev@...nvswitch.org, 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, Shrijeet Mukherjee <shm@...ulusnetworks.com>
Subject: Re: [patch net-next RFC 10/12] openvswitch: add support for datapath
 hardware offload

Tue, Aug 26, 2014 at 04:58:54PM CEST, jhs@...atatu.com wrote:
>On 08/26/14 10:06, Jiri Pirko wrote:
>
>>Yes. Flows are phase one. The api will be extended in for whatever is
>>needed for l2/l3 as you said. Also I see a possibility to implement the
>>l2/l3 use case with flows as well.
>
>And as a note: This is where i have the disagreement.
>It is good there is acknowledgement you are handling flows for now.
>Or whatever tuples you defined as "flow". I dont think L2 or 3 fit
>in that. If thats not what you are saying then we are in agreement.

I do not think that really matters. Phase one is flows. After that we
can focus on l2/l3. If we would be able to fit in in flows (some drivers
may), then ok. If not, we extend the api with couple of more l2/l3
related ndos. I see no problem there.

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