netdev - RE: SFP+ support for 8168fp/8117

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Message-ID: <1252a766545b48aeafdff9702566565c@realtek.com>
Date:   Fri, 6 Mar 2020 15:34:47 +0000
From:   Hau <hau@...ltek.com>
To:     Andrew Lunn <andrew@...n.ch>
CC:     Kai-Heng Feng <kai.heng.feng@...onical.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Linux Netdev List <netdev@...r.kernel.org>,
        "Kernel development list" <linux-kernel@...r.kernel.org>,
        Anthony Wong <anthony.wong@...onical.com>,
        Jason Yen <jason.yen@...onical.com>
Subject: RE: SFP+ support for 8168fp/8117

> 
> > > Hi Kai-Heng,
> > >
> > > For adding SFP+ support for rtl8168fp, 1.Some power saving features
> > > must be disabled, like APDLS/EEE/EEEPLUS...
> > > 2.PHY capability must be set to auto-negation.
> > >
> > > I am kind of busy this week. I will try to add support for this chip
> > > into
> > upstream next week.
> >
> > Is it possible to access the I2C bus? The GPIO lines from the SFP
> > socket like LOS, TX Disable?
> >

This chip can get fiber info through I2C. It also can detect LOS or control TX Disable via GPIO.

Thanks,
Hau
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