linux-kernel - RE: [EXT] Re: [PATCH net-next] net: dsa: tag_ocelot: use traffic class to map priority on injected header

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Date:   Thu, 23 Dec 2021 04:27:29 +0000
From:   Xiaoliang Yang <xiaoliang.yang_1@....com>
To:     Jakub Kicinski <kuba@...nel.org>
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>,
        "UNGLinuxDriver@...rochip.com" <UNGLinuxDriver@...rochip.com>,
        Vladimir Oltean <vladimir.oltean@....com>,
        Claudiu Manoil <claudiu.manoil@....com>,
        "alexandre.belloni@...tlin.com" <alexandre.belloni@...tlin.com>,
        "f.fainelli@...il.com" <f.fainelli@...il.com>,
        "andrew@...n.ch" <andrew@...n.ch>,
        "vivien.didelot@...il.com" <vivien.didelot@...il.com>,
        Marouen Ghodhbane <marouen.ghodhbane@....com>
Subject: RE: [EXT] Re: [PATCH net-next] net: dsa: tag_ocelot: use traffic
 class to map priority on injected header


On Wed, 23 Dec 2021 06:24 Jakub Kicinski wrote:
> > For Ocelot switches, the CPU injected frames have an injection header
> > where it can specify the QoS class of the packet and the DSA tag, now
> > it uses the SKB priority to set that. If a traffic class to priority
> > mapping is configured on the netdevice (with mqprio for example ...),
> > it won't be considered for CPU injected headers. This patch make the
> > QoS class aligned to the priority to traffic class mapping if it exists.
> >
> > Signed-off-by: Xiaoliang Yang <xiaoliang.yang_1@....com>
> > Signed-off-by: Marouen Ghodhbane <marouen.ghodhbane@....com>
> 
> Is this a fix? Looks like one.
Yes, It can be seen as a fix, I will add fix tag and resend to net, thanks.