> -----Original Message----- > From: Andrew Lunn <andrew@xxxxxxx> > Sent: 06 June 2024 18:53 > To: Swathi K S <swathi.ks@xxxxxxxxxxx> > Cc: davem@xxxxxxxxxxxxx; edumazet@xxxxxxxxxx; kuba@xxxxxxxxxx; > pabeni@xxxxxxxxxx; robh+dt@xxxxxxxxxx; krzysztof.kozlowski+dt@xxxxxxxxxx; > conor+dt@xxxxxxxxxx; richardcochran@xxxxxxxxx; > alexandre.torgue@xxxxxxxxxxx; joabreu@xxxxxxxxxxxx; > mcoquelin.stm32@xxxxxxxxx; alim.akhtar@xxxxxxxxxxx; linux- > fsd@xxxxxxxxx; pankaj.dubey@xxxxxxxxxxx; ravi.patel@xxxxxxxxxxx; > netdev@xxxxxxxxxxxxxxx; devicetree@xxxxxxxxxxxxxxx; linux- > kernel@xxxxxxxxxxxxxxx; linux-samsung-soc@xxxxxxxxxxxxxxx; linux-arm- > kernel@xxxxxxxxxxxxxxxxxxx; 'Jayati Sahu' <jayati.sahu@xxxxxxxxxxx>; Siddharth > Vadapalli <s-vadapalli@xxxxxx> > Subject: Re: [PATCH v3 3/4] arm64: dts: fsd: Add Ethernet support for FSYS0 > Block of FSD SoC > > > > > +ðernet_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