Re: [PATCH v4 10/18] PCI: Account for ACS egress control in isolation checks

[Jason Gunthorpe]

> pci_acs_enabled() treats P2P Request Redirect as effective whenever its
> control bit is set. PCIe r7.0, sec 6.12.3, table 6-11 lets an enabled
> Egress Control Vector override it: a clear vector bit routes the request
> directly.

This may well all be correct, but I'd prefer not to touch grouping in
this series working on p2pdma.. The grouping logic is already not
doing a good job with the spec and we can't change it because it
creates regression.

-- 
Jason