netdev - Re: [RFC net-next 6/9] net/cls_flower: Introduce hardware offloading

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Message-ID: <56af360f.034cc20a.78f42.3c3c@mx.google.com>
Date:	Mon, 1 Feb 2016 12:43:08 +0200
From:	Amir Vadai <amir@...ai.me>
To:	John Fastabend <john.fastabend@...il.com>
Cc:	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
	John Fastabend <john.r.fastabend@...el.com>,
	Or Gerlitz <ogerlitz@...lanox.com>,
	Hadar Har-Zion <hadarh@...lanox.com>,
	Jiri Pirko <jiri@...lanox.com>,
	Jamal Hadi Salim <jhs@...atatu.com>
Subject: Re: [RFC net-next 6/9] net/cls_flower: Introduce hardware offloading

On Mon, Feb 01, 2016 at 01:31:17AM -0800, John Fastabend wrote:
> On 16-02-01 12:34 AM, Amir Vadai wrote:
> > During initialization, tcf_exts_offload_init() is called to initialize
> > the list of actions description. later on, the classifier description
> > is prepared and sent to the switchdev using switchdev_port_flow_add().
> > 
> > When offloaded, fl_classify() is a NOP - already done in hardware.
> > 
> > Signed-off-by: Amir Vadai <amir@...ai.me>
> > ---
> 
> You need to account for where the classifier is being loaded
> by passing the handle as I did in my patch set. Otherwise you may
> be offloading on egress/ingress or even some qdisc multiple layers
> down in the hierarchy.
Right. Will fix it.

> 
> .John
>