[PATCH v3 3/4] arm64: dts: fsd: Add Ethernet support for FSYS0 Block of FSD SoC

[Swathi K S]

> -----Original Message-----
> From: Andrew Lunn <andrew at lunn.ch>
> Sent: 06 June 2024 18:53
> To: Swathi K S <swathi.ks at samsung.com>
> Cc: davem at davemloft.net; edumazet at google.com; kuba at kernel.org;
> pabeni at redhat.com; robh+dt at kernel.org; krzysztof.kozlowski+dt at linaro.org;
> conor+dt at kernel.org; richardcochran at gmail.com;
> alexandre.torgue at foss.st.com; joabreu at synopsys.com;
> mcoquelin.stm32 at gmail.com; alim.akhtar at samsung.com; linux-
> fsd at tesla.com; pankaj.dubey at samsung.com; ravi.patel at samsung.com;
> netdev at vger.kernel.org; devicetree at vger.kernel.org; linux-
> kernel at vger.kernel.org; linux-samsung-soc at vger.kernel.org; linux-arm-
> kernel at lists.infradead.org; 'Jayati Sahu' <jayati.sahu at samsung.com>;
Siddharth
> Vadapalli <s-vadapalli at ti.com>
> Subject: Re: [PATCH v3 3/4] arm64: dts: fsd: Add Ethernet support for
FSYS0
> Block of FSD SoC
> 
> > > > +&ethernet_0 {
> > > > +	status = "okay";
> > > > +
> > > > +	fixed-link {
> > > > +		speed = <1000>;
> > > > +		full-duplex;
> > > > +	};
> > > > +};
> > >
> > > A fixed link on its own is pretty unusual. Normally it is combined
> > > with an Ethernet switch. What is the link peer here?
> >
> > It is a direct connection to the Ethernet switch managed by an
> > external management unit.
> 
> Ah, interesting. This is the third example of this in about a month. Take
a look at
> the Realtek and TI work in this area.
> 
> So, i will ask the same questions i put to Realtek and TI. Does Linux know
about
> the switch in any way? Can it manage the switch, other than SNMP, HTTP
from
> user space? Does it know about the state of the ports, etc?
> 
> If you say this is just a colocated management switch, which Linux is not
> managing in any way, that is O.K. If you have Linux involved in some way,
please
> join the discussion with TI about adding a new model for semi-autonomous
> switches.

Thanks for letting us know about the ongoing discussion.
But in this case, the switch is not managed by Linux.

> 
>    Andrew

Thanks,
Swathi