netdev - Re: [PATCH net-next 00/13] Control action percpu counters allocation by netlink flag

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Date:   Wed, 23 Oct 2019 13:08:47 +0000
From:   Vlad Buslov <vladbu@...lanox.com>
To:     Jamal Hadi Salim <jhs@...atatu.com>
CC:     Vlad Buslov <vladbu@...lanox.com>, Roman Mashak <mrv@...atatu.com>,
        Marcelo Ricardo Leitner <mleitner@...hat.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "xiyou.wangcong@...il.com" <xiyou.wangcong@...il.com>,
        "jiri@...nulli.us" <jiri@...nulli.us>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "dcaratti@...hat.com" <dcaratti@...hat.com>,
        "pabeni@...hat.com" <pabeni@...hat.com>
Subject: Re: [PATCH net-next 00/13] Control action percpu counters allocation
 by netlink flag


On Wed 23 Oct 2019 at 16:02, Jamal Hadi Salim <jhs@...atatu.com> wrote:
> I shouldve read the thread backward. My earlier email was asking
> similar question to Roman.
>
> On 2019-10-23 2:38 a.m., Vlad Buslov wrote:
>>
>> On Tue 22 Oct 2019 at 21:17, Roman Mashak <mrv@...atatu.com> wrote:
>
>> Hi Roman,
>>
>> I considered it, but didn't find good way to implement my change with
>> TCA_ROOT_FLAGS. I needed some flags to be per-action for following
>> reasons:
>>
>> 1. Not all actions support the flag (only implemented for hw offloaded
>>     actions).
>>
>>
>> 2. TCA_ROOT_FLAGS is act API specific and I need this to work when
>>     actions are created when actions are created with filters through cls
>>     API. I guess I could have changed tcf_action_init_1() to require
>>     having TCA_ROOT_FLAGS before actions attribute and then pass obtained
>>     value to act_ops->init() as additional argument, but it sounds more
>>     complex and ugly.
>
> I really shouldve read the thread backwards;->
> The question is if this uglier than introducing a new TLV for every
> action.

I'm not introducing it for every action, only for minority of them.

>
> cheers,
> jamal