[Intel-wired-lan] [Regression] "e1000e: Add support for S0ix" breaks s2idle on Lenovo X1 Carbon 7th

Neftin, Sasha sasha.neftin at intel.com
Wed Mar 18 13:31:28 UTC 2020


On 3/18/2020 14:21, Kai-Heng Feng wrote:
> Hi Sasha,
> 
>> On Mar 18, 2020, at 16:50, Neftin, Sasha <sasha.neftin at intel.com> wrote:
> 
> [snipped]
> 
>> ok, let's understand where is PHY location.
> 
> Lenovo confirmed the PHY is inside the laptop.
> 
>> Since no docking connected why driver should run?
> 
> Because the SoC in the laptop has an I219 device?
> 
>> There is no RJ45 port on laptop.
> 
> The Lenovo ethernet dongle wires the RJ45 to the I219 device.
> 
>> S0ix flow same (I got confirmation from our architecture team) and should haven't impact on Sx.
>> if PHY located externally... during S0ix flow we try access to the PHY and it can be problem. Since laptop have no RJ45 connector driver not expected to run I though.
> 
> But the I219 device is always on the PCI bus so e1000e should bind to it?
> 
ok. Need to debug this system. We will escalate this problem to our PAE.
> Kai-Heng
> 



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