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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on howler.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (howler.vger.email [0.0.0.0]); Tue, 31 Oct 2023 12:02:49 -0700 (PDT) On Tue, Oct 31, 2023 at 5:34=E2=80=AFPM Vladimir Oltean = wrote: > Ok, so we don't have a confirmation of breakage with other conduit > interface than the Gemini driver, either. So a problem there is still > not off the table. True! > So on the gemini-dlink-dir-685.dts platform, you can also use &gmac1 as > a plain Ethernet port, right? As a port it exist on the SoC yes but it is not connected physically to anything. &gmac0 is connected to the switch, and the switch has all the PHYs. (I don't know if I misunderstand the question...) > If possible, could you set up dsa_loop (enable CONFIG_NET_DSA_LOOP, repla= ce > "eth0" in dsa_loop_pdata with the netdev name of &gmac1, replace DSA_TAG_= PROTO_NONE > in dsa_loop_get_protocol() with your tagging protocol) and put a tcpdump > on the remote end of the gmac1 port, to see if the issue isn't, in fact, > somewhere else, maybe gmac_start_xmit()? If you by remote end mean the end of a physical cable there is no way I can do that, as I have no PHY on gmac1. But I have other Gemini platforms, so I will try to do it on one of them! Let's see if I can do this thing.... Yours, Linus Walleij