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charset="utf-8" X-Sendblock-Type: REQ_APPROVE CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20230814112617epcas5p1bc094e9cf29da5dd7d1706e3f509ac28 References: <20230814112539.70453-1-sriranjani.p@samsung.com> <20230814112539.70453-4-sriranjani.p@samsung.com> <323e6d03-f205-4078-a722-dd67c66e7805@lunn.ch> <000001dab7f2$18a499a0$49edcce0$@samsung.com> <14887409-4c5e-4589-b188-564df42924c8@lunn.ch> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240729_015708_287341_607789A4 X-CRM114-Status: GOOD ( 23.73 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org > -----Original Message----- > From: Andrew Lunn > Sent: 06 June 2024 18:53 > To: Swathi K S > Cc: davem@davemloft.net; edumazet@google.com; kuba@kernel.org; > pabeni@redhat.com; robh+dt@kernel.org; krzysztof.kozlowski+dt@linaro.org; > conor+dt@kernel.org; richardcochran@gmail.com; > alexandre.torgue@foss.st.com; joabreu@synopsys.com; > mcoquelin.stm32@gmail.com; alim.akhtar@samsung.com; linux- > fsd@tesla.com; pankaj.dubey@samsung.com; ravi.patel@samsung.com; > netdev@vger.kernel.org; devicetree@vger.kernel.org; linux- > kernel@vger.kernel.org; linux-samsung-soc@vger.kernel.org; linux-arm- > kernel@lists.infradead.org; 'Jayati Sahu' ; Siddharth > Vadapalli > 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