linux-kernel - Re: [PATCH net-next 08/30] net: dsa: mt7530: change p{5,6}_interface to p{5,6}

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Message-ID: <20230603122731.bmo2r4jlwtwpcv3k@skbuf>
Date:   Sat, 3 Jun 2023 15:27:31 +0300
From:   Vladimir Oltean <olteanv@...il.com>
To:     Arınç ÜNAL <arinc.unal@...nc9.com>
Cc:     Sean Wang <sean.wang@...iatek.com>,
        Landen Chao <Landen.Chao@...iatek.com>,
        DENG Qingfang <dqfext@...il.com>,
        Daniel Golle <daniel@...rotopia.org>,
        Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...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>,
        Russell King <linux@...linux.org.uk>,
        Richard van Schagen <richard@...terhints.com>,
        Richard van Schagen <vschagen@...com>,
        Frank Wunderlich <frank-w@...lic-files.de>,
        Bartel Eerdekens <bartel.eerdekens@...stell8.be>,
        erkin.bozoglu@...ont.com, mithat.guner@...ont.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH net-next 08/30] net: dsa: mt7530: change p{5,6}_interface
 to p{5,6}_configured

On Sat, Jun 03, 2023 at 03:15:52PM +0300, Arınç ÜNAL wrote:
> On 26.05.2023 16:01, Vladimir Oltean wrote:
> > Ok, but given the premise of this patch set, that phylink is always available,
> > does it make sense for mt7531_cpu_port_config() and mt7988_cpu_port_config()
> > to manually call phylink methods?
> 
> All I know is that that's how the implementation of phylink's PCS support in
> this driver works. It expects the MAC to be set up before calling
> mt753x_phylink_pcs_link_up() and mt753x_phylink_mac_link_up().

No, but I mean, won't phylink call mt7531_mac_config(), mt753x_phylink_pcs_link_up()
and mt753x_phylink_mac_link_up() automatically and in the expected order already,
and if not, what prevents that from happening? I just don't understand why the
cpu_port_config() methods of MT7531 and MT7988 call phylink methods manually
from the driver.