netdev - Re: Choose a default DSA CPU port

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Date: Wed, 17 May 2023 19:14:01 +0300
From: Arınç ÜNAL <arinc.unal@...nc9.com>
To: Vladimir Oltean <olteanv@...il.com>
Cc: Frank Wunderlich <frank-w@...lic-files.de>, Felix Fietkau <nbd@....name>,
 netdev <netdev@...r.kernel.org>, erkin.bozoglu@...ont.com,
 Andrew Lunn <andrew@...n.ch>, Florian Fainelli <f.fainelli@...il.com>,
 John Crispin <john@...ozen.org>, Mark Lee <Mark-MC.Lee@...iatek.com>,
 Lorenzo Bianconi <lorenzo@...nel.org>,
 Matthias Brugger <matthias.bgg@...il.com>,
 Landen Chao <Landen.Chao@...iatek.com>, Sean Wang <sean.wang@...iatek.com>,
 DENG Qingfang <dqfext@...il.com>
Subject: Re: Choose a default DSA CPU port

On 17.05.2023 19:10, Vladimir Oltean wrote:
> On Tue, May 16, 2023 at 10:29:27PM +0300, Arınç ÜNAL wrote:
>> For MT7530, the port to trap the frames to is fixed since CPU_PORT is only
>> of 3 bits so only one CPU port can be defined. This means that, in case of
>> multiple ports used as CPU ports, any frames set for trapping to CPU port
>> will be trapped to the numerically greatest CPU port.
> 
> *that is up

Yes, the DSA conduit interface of the CPU port must be up. Otherwise, 
these frames won't appear anywhere. I should mention this on my patch, 
thanks.

Arınç