Re: [GIT PULL] PCI fixes for v4.10

From: Lukas Wunner
Date: Mon May 01 2017 - 21:53:35 EST

Hi Ashok,

sorry for the delay, I was swamped with work in the first quarter and am
in the process of slowly going through my backlog...

On Thu, Feb 09, 2017 at 10:46:13AM -0800, Raj, Ashok wrote:
> I did a lspci and captured after a fresh reboot on the slot before
> attempting a power off via sysfs.
> lspci-at-poweron - values after a cold reset poweron.
> lspci-aft-poweroff - values after a echo 0 > power
> lspci-aft-poweron - values after a echo 1 > power
> i would expect most or all of those values to stay same between poweron
> and after the next sysfs managed poweron. Would be worth taking a look and see
> if we have any escapes.

(a) Correctable error (Receiver Error) after powering off => harmless.

(b) ASPM L1 enabled on boot, but disabled after powering off and back on
=> I believe Sinan is working on this (+cc).

(c) Autonomous Bandwidth Status is set after powering back on, but the
speed and width is the same as on boot => harmless.

(d) PME Status is set after powering off and stays set after powering on.
Weird. Could you retry with the new pciehp runtime PM series I sent
out a few hours ago?