netdev - Re: [net-next PATCH 1/4] net: sched: consolidate offload decision in cls

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Date:	Wed, 24 Feb 2016 09:49:01 +0100
From:	Jiri Pirko <jiri@...nulli.us>
To:	John Fastabend <john.fastabend@...il.com>
Cc:	daniel@...earbox.net, netdev@...r.kernel.org,
	alexei.starovoitov@...il.com, davem@...emloft.net, jhs@...atatu.com
Subject: Re: [net-next PATCH 1/4] net: sched: consolidate offload decision in
 cls_u32

Tue, Feb 23, 2016 at 08:02:33PM CET, john.fastabend@...il.com wrote:
>The offload decision was originally very basic and tied to if the dev
>implemented the appropriate ndo op hook. The next step is to allow
>the user to more flexibly define if any paticular rule should be
>offloaded or not. In order to have this logic in one function lift
>the current check into a helper routine tc_should_offload().
>
>Signed-off-by: John Fastabend <john.r.fastabend@...el.com>
>---
> net/sched/cls_u32.c |   13 +++++++++----
> 1 file changed, 9 insertions(+), 4 deletions(-)
>
>diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c
>index d54bc94..1f31929 100644
>--- a/net/sched/cls_u32.c
>+++ b/net/sched/cls_u32.c
>@@ -425,6 +425,11 @@ static int u32_delete_key(struct tcf_proto *tp, struct tc_u_knode *key)
> 	return 0;
> }
> 
>+static bool u32_should_offload(struct net_device *dev)
>+{
>+	return dev->netdev_ops->ndo_setup_tc;
>+}
>+

This should be done in generic "dev_should_offload_tc" helper