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SubjectRe: [Intel-wired-lan] [PATCH] e1000e: fix link fluctuations problem
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On 07/05/2024 15:10, Andrew Lunn wrote:
> On Tue, May 07, 2024 at 11:24:05AM +0200, En-Wei WU wrote:
>>> Why PHY is this?
>> It's the Intel I219-LM, and I haven't found any other device having
>> the same issue.
>
> There is no Linux PHY driver for this device, only the code buried in
> the e1000e MAC driver. Sometimes Intel use Marvell PHYs, and there are
> a couple of work arounds in the Marvell PHY driver, which might of
> given you a clue. But not in this case...

In I219-* parts used LSI PHY. This PHY is compliant with the 802.3 IEEE
standard if I recall correctly. Auto-negotiation and link establishment
are processed following the IEEE standard and could vary from platform
to platform but are not violent to the IEEE standard.

En-Wei, My recommendation is not to accept these patches. If you think
there is a HW/PHY problem - open a ticket on Intel PAE.

Sasha

>
> Andrew


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