On 2022/8/18 06:48, Jason Gunthorpe wrote:
On Wed, Aug 17, 2022 at 04:17:43PM -0500, Bjorn Helgaas wrote:
Does the PCIe spec really allow TLPs with PASID to be routed anywhere
except upstream?
I think yes:
2.2.10.2 End-End TLP Prefix Processing:
The presence of an End-End TLP Prefix does not alter the routing of a
TLP. TLPs are routed based on the routing rules covered in Section
2.2.4 .
Which I read as saying that routing is done after stripping all the
prefixes. PASID is a prefix.
Lu, you may want to quote the spec in the commit message to make it
clear.
Yes. Sure thing. Thank you!
Best regards,
baolu
