APPLIED: [PATCH v2] UBUNTU: SAUCE: PCI: Enable ACS quirk on all CML root ports

Ian May ian.may at canonical.com
Thu Oct 22 18:28:14 UTC 2020


Applied to Focal/master-next

Also adjusted Buglink on patch to 1900847

Thanks,
Ian

On 2020-10-22 13:51:46 , Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/1895718
> 
> In addition to KIOXIA NVMe, Intel NVMe under another root port also has
> the same ACS violation issue.
> 
> According to Intel, all CML root ports need this workaround, so add all
> root ports from [1] to existing quirk.
> 
> [1] IntelĀ® 400 Series Chipset Family Platform Controller Hub (PCH) Datasheet, Volume 1 of 2, Content ID: 620854	Version: 002
> 
> Signed-off-by: Kai-Heng Feng <kai.heng.feng at canonical.com>
> ---
>  drivers/pci/quirks.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
> index cfa7387a12b9..706f27a86a8e 100644
> --- a/drivers/pci/quirks.c
> +++ b/drivers/pci/quirks.c
> @@ -4665,7 +4665,7 @@ static bool pci_quirk_intel_spt_pch_acs_match(struct pci_dev *dev)
>  		return false;
>  
>  	switch (dev->device) {
> -	case 0x06ac: /* Comet Lake */
> +	case 0x06ac ... 0x06c3: /* Comet Lake */
>  	case 0xa110 ... 0xa11f: case 0xa167 ... 0xa16a: /* Sunrise Point */
>  	case 0xa290 ... 0xa29f: case 0xa2e7 ... 0xa2ee: /* Union Point */
>  	case 0x9d10 ... 0x9d1b: /* 7th & 8th Gen Mobile */
> -- 
> 2.17.1
> 
> 
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