netdev - Re: [PATCH v1 net-next 2/5] net: mscc: ocelot: set vcap IS2 chain to goto PSFP chain

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Message-ID: <20201021165911.7aj4ksqqj4cof2tb@soft-dev16>
Date:   Wed, 21 Oct 2020 18:59:11 +0200
From:   "joergen.andreasen@...rochip.com" <joergen.andreasen@...rochip.com>
To:     Vladimir Oltean <vladimir.oltean@....com>
CC:     Xiaoliang Yang <xiaoliang.yang_1@....com>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "allan.nielsen@...rochip.com" <allan.nielsen@...rochip.com>,
        "UNGLinuxDriver@...rochip.com" <UNGLinuxDriver@...rochip.com>,
        "vinicius.gomes@...el.com" <vinicius.gomes@...el.com>,
        "michael.chan@...adcom.com" <michael.chan@...adcom.com>,
        "vishal@...lsio.com" <vishal@...lsio.com>,
        "saeedm@...lanox.com" <saeedm@...lanox.com>,
        "jiri@...lanox.com" <jiri@...lanox.com>,
        "idosch@...lanox.com" <idosch@...lanox.com>,
        "alexandre.belloni@...tlin.com" <alexandre.belloni@...tlin.com>,
        "kuba@...nel.org" <kuba@...nel.org>, Po Liu <po.liu@....com>,
        Claudiu Manoil <claudiu.manoil@....com>,
        "Alexandru Marginean" <alexandru.marginean@....com>,
        Leo Li <leoyang.li@....com>, "Mingkai Hu" <mingkai.hu@....com>
Subject: Re: [PATCH v1 net-next 2/5] net: mscc: ocelot: set vcap IS2 chain to
 goto PSFP chain

The 10/20/2020 23:27, Vladimir Oltean wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
> 
> On Tue, Oct 20, 2020 at 03:23:18PM +0800, Xiaoliang Yang wrote:
> > VSC9959 supports Per-Stream Filtering and Policing(PSFP), which is
> > processing after VCAP blocks. We set this block on chain 30000 and
> > set vcap IS2 chain to goto PSFP chain if hardware support.
> >
> > An example set is:
> >       > tc filter add dev swp0 ingress chain 21000 flower
> >               skip_sw action goto chain 30000
> >
> > Signed-off-by: Xiaoliang Yang <xiaoliang.yang_1@....com>
> > ---
> 
> I will defer to Microchip people whether 30000 is a good chain number
> for TSN offloads. Do you have other ingress VCAPs that you would like to
> number 30000?

We see no problems with using ingress chain 30000 for PSFP.
-- 
Joergen Andreasen, Microchip