linux-kernel - Re: [PATCH net v4 2/7] net: dsa: mt7530: fix trapping frames with multiple CPU ports on MT7530

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Date:   Mon, 12 Jun 2023 22:11:58 +0100
From:   "Russell King (Oracle)" <linux@...linux.org.uk>
To:     arinc9.unal@...il.com
Cc:     Arınç ÜNAL <arinc.unal@...nc9.com>,
        Daniel Golle <daniel@...rotopia.org>,
        Landen Chao <Landen.Chao@...iatek.com>,
        DENG Qingfang <dqfext@...il.com>,
        Sean Wang <sean.wang@...iatek.com>,
        Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Frank Wunderlich <frank-w@...lic-files.de>,
        Bartel Eerdekens <bartel.eerdekens@...stell8.be>,
        mithat.guner@...ont.com, erkin.bozoglu@...ont.com,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH net v4 2/7] net: dsa: mt7530: fix trapping frames with
 multiple CPU ports on MT7530

On Mon, Jun 12, 2023 at 10:09:45PM +0100, Russell King (Oracle) wrote:
> On Mon, Jun 12, 2023 at 10:59:40AM +0300, arinc9.unal@...il.com wrote:
> > From: Arınç ÜNAL <arinc.unal@...nc9.com>
> > 
> > The CPU_PORT bits represent the CPU port to trap frames to for the MT7530
> > switch. This switch traps frames received from a user port to the CPU port
> > set on the CPU_PORT bits, regardless of the affinity of the user port from
> > which the frames are received.
> 
> I think:
> 
> "On the MT7530, the CPU_PORT() field indicates which CPU port to trap
> frames to, regardless of the affinity of the inbound user port."

also, is it really the MT7530, or is it MT7621? The code only does
something for the MT7621.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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