APPLIED [OEM-5.6] Re: [SRU] [F/G/Unstable/OEM-5.6] [PATCH v2 0/1] Fix non-working Intel NVMe after S3

[Timo Aaltonen]

On 22.10.2020 8.51, Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/1900847
> 
> [Impact]
> Intel NVMe has a 10% chance to stop working after S3.
> 
> [Fix]
> Enable ACS quirk on all Intel CML root ports.
> 
> [Test]
> With the patch applied, Intel NVMe mostly works after S3. There's still a
> 1/1000 chance the issue happens. Intel is investigating the root cause.
> 
> [Regression Potential]
> ACS works at hardware level, so I can't really assess the risk of
> regression. Since Intel confirmed CML also needs ACS quirk, we can only
> trust them until they devise a real fix.
> 
> Kai-Heng Feng (1):
>    UBUNTU: SAUCE: PCI: Enable ACS quirk on all CML root ports
> 
>   drivers/pci/quirks.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 

applied to oem-5.6, thanks

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