netdev - Re: [PATCH 3/7] dt-bindings: mv88e6xxx: add ability to set default queue priorities per port

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Date:   Tue, 10 Sep 2019 21:46:34 +0100
From:   Vladimir Oltean <olteanv@...il.com>
To:     Vivien Didelot <vivien.didelot@...il.com>
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        Robert Beckett <bob.beckett@...labora.com>,
        netdev@...r.kernel.org, Andrew Lunn <andrew@...n.ch>,
        "David S. Miller" <davem@...emloft.net>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        devicetree@...r.kernel.org, Jiri Pirko <jiri@...nulli.us>,
        Ido Schimmel <idosch@...lanox.com>
Subject: Re: [PATCH 3/7] dt-bindings: mv88e6xxx: add ability to set default
 queue priorities per port

Hi guys,

On 10/09/2019, Vivien Didelot <vivien.didelot@...il.com> wrote:
> Hi Robert,
>
> On Tue, 10 Sep 2019 09:42:24 -0700, Florian Fainelli <f.fainelli@...il.com>
> wrote:
>> This is a vendor specific driver/property,
>> marvell,default-queue-priority (which be cheapskate on words) would be
>> more readable. But still, I have some more fundamental issues with the
>> general approach, see my response in the cover letter.
>
> As Florian said, the DT is unlikely to welcome vendor specific nodes for
> configuration which may be generic through standard network userspace
> tools.
>
>
> Thanks,
>
> 	Vivien
>

While I do agree that the DT bindings are a big no-no for QoS
settings, the topic is interesting.
What is the user space knob for configuring port-default priority (say
RX queue)?
Something like this maybe? (a very forced "matchall" with rxnfc)
ethtool --config-nfc eth0 flow-type ether src 00:00:00:00:00:00 m
00:00:00:00:00:00 action 5

Regards,
-Vladimir