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

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Message-ID: <20201020232713.vyu3afhnhicf6xn2@skbuf>
Date:   Tue, 20 Oct 2020 23:27:14 +0000
From:   Vladimir Oltean <vladimir.oltean@....com>
To:     Xiaoliang Yang <xiaoliang.yang_1@....com>
CC:     "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>,
        "joergen.andreasen@...rochip.com" <joergen.andreasen@...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

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?