Re: [PATCH] PCI: pciehp: Do not turn off slot if presence comes up after link

From: Alex_Gagniuc
Date: Thu Feb 14 2019 - 14:26:53 EST

On 2/14/19 1:01 AM, Lukas Wunner wrote:
> On Wed, Feb 13, 2019 at 06:55:46PM +0000, Alex_Gagniuc@xxxxxxxxxxxx wrote:
>> On 2/13/19 2:36 AM, Lukas Wunner wrote:
>>>> (*) A bit hypothetical: There is no hardware yet implementing the ECN.
>>> Hm, this contradicts Austin Bolen's e-mail of Jan 25 that "Yes, this
>>> platform disables in-band presence" (when asked whether your host
>>> controller already adheres to the ECN).
>> Both statements are true. The hardware does indeed disable in-band
>> presence, in a rudimentary way that is not compliant with the ECN -- it
>> doesn't implement the bits required by the ECN.
> Ugh, can a BIOS update make those machines compliant to the ECN

No, that is not possible, I'm told.

> or do we need a quirk specifically for them?

We might have to.

> It should match the spec, which I have no access to.

I am as irritated as you that the spec is not readily available for
public viewing.