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Message-ID: <8adbd20c-6de0-49ab-aabe-faf845d9a5d9@lunn.ch> Date: Sat, 6 May 2023 03:05:10 +0200 From: Andrew Lunn <andrew@...n.ch> To: Lorenz Brun <lorenz@...n.one> Cc: netdev@...r.kernel.org, Russell King <rmk+kernel@...linux.org.uk> Subject: Re: Quirks for exotic SFP module > I tested and I got a bunch of addresses showing up on i2c master connected > to the module. 1b, 30, 31, 34, 35, 36, 50 and 53. But I'm still not sure why > we'd want to talk MDIO with this module. AFAIK MDIO is an Ethernet thing, > the module is talking G.fast to the outside which is a completely different > protocol from a completely different family of protocols. It has its own > management protocol which runs over Ethernet. One reason you might want to talk to the PHY is to correct is configuration. 1000Base-X includes inband signalling. There are some Copper SFP which have the inband signalling disabled. And that can make the host unhappy, it fails to link up. It varies from host to host. Some work, some don't. > OT but my messages to Russell King cannot be delivered > mx0.armlinux.org.uk: <lorenz@...n.one> is locally blocked. If this is > incorrect, please contact the postmaster. > > I haven't knowingly sent any messages to him before so I have no idea why > I'd be blocked. My sender IP isn't on any public blacklist MultiRBL knows > about. My DKIM/DMARC setup is also working. Russell, what do your mail logs say? Andrew
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