Thanks Hans On 14/12/2020 13:31, Mark Pearson wrote: > > > ------------------------------------------------------------------------ > *From:* Hans de Goede <[email protected]> > *Sent:* December 14, 2020 13:24 > *To:* Mario Limonciello <[email protected]>; Jeff Kirsher > <[email protected]>; Tony Nguyen <[email protected]>; > [email protected] <[email protected]>; > David Miller <[email protected]>; Aaron Ma <[email protected]>; > Mark Pearson <[email protected]> > *Cc:* [email protected] <[email protected]>; > Netdev <[email protected]>; Alexander Duyck > <[email protected]>; Jakub Kicinski <[email protected]>; Sasha > Netfin <[email protected]>; Aaron Brown <[email protected]>; > Stefan Assmann <[email protected]>; [email protected] > <[email protected]>; [email protected] <[email protected]>; > [email protected] <[email protected]>; [email protected] > <[email protected]> > *Subject:* [External] Re: [PATCH v4 0/4] Improve s0ix flows for systems > i219LM > > Hi All, > <snip> > > ### > > I've added Mark Pearson from Lenovo to the Cc so that Lenovo > can investigate this issue further. > > Mark, this thread is about an issue with enabling S0ix support for > e1000e (i219lm) controllers. This was enabled in the kernel a > while ago, but then got disabled again on vPro / AMT enabled > systems because on some systems (Lenovo X1C7 and now also X1C8) > this lead to suspend/resume issues. > > When AMT is active then there is a handover handshake for the > OS to get access to the ethernet controller from the ME. The > Intel folks have checked and the Windows driver is using a timeout > of 1 second for this handshake, yet on Lenovo systems this is > taking 2 seconds. This likely has something to do with the > ME firmware on these Lenovo models, can you get the firmware > team at Lenovo to investigate this further ? Absolutely - I'll ask them to look into this again.
We did try to make progress with this previously - but it got a bit stuck and hence the need for these patches....but I believe things may have changed a bit so it's worth trying again Mark
