[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <5669c185-db96-4ac2-81d5-2198060ae77d@lunn.ch>
Date: Fri, 10 May 2024 14:32:22 +0200
From: Andrew Lunn <andrew@...n.ch>
To: Sasha Neftin <sasha.neftin@...el.com>
Cc: "Ruinskiy, Dima" <dima.ruinskiy@...el.com>,
Ricky Wu <en-wei.wu@...onical.com>, netdev@...r.kernel.org,
rickywu0421@...il.com, linux-kernel@...r.kernel.org,
edumazet@...gle.com, intel-wired-lan@...ts.osuosl.org,
kuba@...nel.org, anthony.l.nguyen@...el.com, pabeni@...hat.com,
davem@...emloft.net, "Lifshits, Vitaly" <vitaly.lifshits@...el.com>,
"naamax.meir" <naamax.meir@...ux.intel.com>,
"Avivi, Amir" <amir.avivi@...el.com>,
"Keller, Jacob E" <jacob.e.keller@...el.com>
Subject: Re: [Intel-wired-lan] [PATCH v2 2/2] e1000e: fix link fluctuations
problem
> > It would be interesting to see what the link partner sees. What does
> > it think the I219-LM is advertising? Is it advertising 1000BaseT_Half?
>
> i219 parts come with LSI PHY. 1000BASE-T half-duplex is not supported.
> 1000BASET half-duplex not advertised in IEEE 1000BASE-T Control Register 9.
That is the theory. But in practice? What does the link partner really
see? I've come across systems which get advertisement wrong. However,
in that case, i suspect it is the software above the PHY, not the PHY
itself which was wrong.
Andrew
Powered by blists - more mailing lists