Re: [PATCH v4 07/18] PCI/P2PDMA: Document the Address Type assumption
| Newsgroups | org.kernel.vger.linux-pci |
|---|---|
| Message-ID | <[email protected]> |
> From: Leon Romanovsky <[email protected]> > > P2PDMA selects a mapping from the ACS controls that govern Requests > carrying an Untranslated address. PCIe r7.0, sec 6.12.3 routes a > Translated Request directly to the peer when ACS Direct Translated P2P is > enabled, regardless of P2P Request Redirect and P2P Egress Control. > Translation Blocking takes precedence and prevents that direct route. > > Document this assumption because an ATS capable client can otherwise > reach the peer directly whichever mapping P2PDMA selects. > > Tested-by: Tushar Dave <[email protected]> > Reviewed-by: Logan Gunthorpe <[email protected]> > Signed-off-by: Leon Romanovsky <[email protected]> Sashiko has reviewed this patch and found no issues. It looks great! -- Sashiko AI review · https://sashiko.dev/#/patchset/[email protected]?part=7