netdev - Re: [PATCH net-next] net/sched: cls_flower: Add user specified data

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Date:   Wed, 18 Jan 2017 06:06:59 -0500
From:   Jamal Hadi Salim <jhs@...atatu.com>
To:     Paul Blakey <paulb@...lanox.com>, Jiri Pirko <jiri@...nulli.us>
Cc:     John Fastabend <john.fastabend@...il.com>,
        "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
        Jiri Pirko <jiri@...lanox.com>,
        Hadar Hen Zion <hadarh@...lanox.com>,
        Or Gerlitz <ogerlitz@...lanox.com>,
        Roi Dayan <roid@...lanox.com>, Roman Mashak <mrv@...atatu.com>
Subject: Re: [PATCH net-next] net/sched: cls_flower: Add user specified data

On 17-01-17 06:53 AM, Paul Blakey wrote:
>
>

>>
>> Should be "trivial" like my patch.
>> Add a new TLV type in TCA_XXX enum in rtnetlink.h
>> in  tc_ctl_tfilter look for it and memcpy it
>> in tcf_fill_node set it on the new TCA_XXX if the cls struct
>> has it present.
>>
>
> That's exactly what I did before I realized it won't work per internal
> element (per handle), which is what I want. see my example.
>
> So I'll probably implement it like actions dumping/init works -
> tcf_exts_init, tcf_exts_dump (calling a generic functions on all
> classifiers who want this).
> I'll add something like get_cookie, dump_cookie. which get/set the
> TCA_COOKIE.
>

Yes, that makes more sense.

cheers,
jamal