Re: [PATCH v2] PCI: Increase maximum PCIe physical function number to 7 for non-ARI devices

[Bjorn Helgaas]

On Fri, Feb 16, 2024 at 02:26:47PM -0800, Kuppuswamy Sathyanarayanan wrote:
> 
> On 2/16/24 11:01 AM, Bean Huo wrote:
> > From: Bean Huo <beanhuo@xxxxxxxxxx>
> >
> > The PCIe specification allows up to 8 Physical Functions (PFs) per endpoint
> > when ARI (Alternative Routing-ID Interpretation) is not supported. Previously,
> > our implementation erroneously limited the maximum number of PFs to 7 for
> > endpoints without ARI support.
> I would quote specification reference here, like below:
> 
> As per PCIe specification r6.2, sec titled "Alternative Routing-ID
> Interpretation (ARI)", up to 8 [fn # 0..7] functions are allowed in
> an non ARI capable device.

That's fine, just know that I silently convert citations like that
to "PCIe r6.2, sec 6.13" because I don't like having to grep for the
text ;)

Bjorn