netdev - Re: Re: [PATCH net-next v12 08/18] net: ethernet: mtk_eth

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Message-ID: <ZAzk71mTxgV/pRxC@shell.armlinux.org.uk>
Date:   Sat, 11 Mar 2023 20:30:39 +0000
From:   "Russell King (Oracle)" <linux@...linux.org.uk>
To:     Frank Wunderlich <frank-w@...lic-files.de>
Cc:     Daniel Golle <daniel@...rotopia.org>,
        Vladimir Oltean <vladimir.oltean@....com>,
        netdev@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Heiner Kallweit <hkallweit1@...il.com>,
        Lorenzo Bianconi <lorenzo@...nel.org>,
        Mark Lee <Mark-MC.Lee@...iatek.com>,
        John Crispin <john@...ozen.org>, Felix Fietkau <nbd@....name>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        DENG Qingfang <dqfext@...il.com>,
        Landen Chao <Landen.Chao@...iatek.com>,
        Sean Wang <sean.wang@...iatek.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        "David S. Miller" <davem@...emloft.net>,
        Vladimir Oltean <olteanv@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Jianhui Zhao <zhaojh329@...il.com>,
        Bjørn Mork <bjorn@...k.no>,
        Alexander Couzens <lynxis@...0.eu>
Subject: Re: Re: [PATCH net-next v12 08/18] net: ethernet: mtk_eth_soc: fix
 1000Base-X and 2500Base-X modes

On Sat, Mar 11, 2023 at 09:21:47PM +0100, Frank Wunderlich wrote:
> Am 11. März 2023 21:00:20 MEZ schrieb "Russell King (Oracle)" <linux@...linux.org.uk>:
> >On Sat, Mar 11, 2023 at 01:05:37PM +0100, Frank Wunderlich wrote:
> 
> >> i got the 2.5G copper sfps, and tried them...they work well with the v12 (including this patch), but not in v13... 
> 
> >> how can we add a quirk to support this?
> >
> >Why does it need a quirk?
> 
> To disable the inband-mode for this 2.5g copper
> sfp. But have not found a way to set a flag which i
> can grab in phylink.

We could make sfp_parse_support() set Autoneg, Pause, and Asym_Pause
in "modes" at the top of that function, and then use the SFP modes
quirk to clear the Autoneg bit for this SFP. Would that work for you?

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