Re: [PATCH 03/13] PCI/P2PDMA: Document the Address Type assumption
Logan Gunthorpe <[email protected]>
| Newsgroups | org.kernel.vger.linux-kernel,org.kernel.vger.linux-doc,org.kernel.vger.linux-pci |
|---|---|
| Message-ID | <[email protected]> |
On 2026-08-02 09:09, Leon Romanovsky wrote: > 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 Request > carrying a Translated address directly to the peer whenever ACS Direct > Translated P2P is enabled, regardless of P2P Request Redirect and P2P > Egress Control. > > An ATS capable client can therefore reach the peer on the direct path > whichever mapping is selected. Record that assumption. > > Signed-off-by: Leon Romanovsky <[email protected]> LGTM Reviewed-by: Logan Gunthorpe <[email protected]>