Re: [PATCH 09/13] PCI/P2PDMA: Document ACS egress control handling

[email protected] Sun, 02 Aug 2026 15:51:18 +0000
Newsgroups org.kernel.vger.linux-pci
Message-ID <[email protected]>
> From: Leon Romanovsky <[email protected]>
> 
> Document the ACS P2P Egress Control outcomes used by P2PDMA: a clear
> target vector bit permits direct routing, a set bit with Request Redirect
> enabled sends the request upstream, and a set bit with Request Redirect
> disabled causes an ACS Violation that P2PDMA rejects.
> 
> Also record that pci=disable_acs_redir= clears P2P Request Redirect,
> Completion Redirect, and Egress Control.
> 
> Signed-off-by: Leon Romanovsky <[email protected]>

Sashiko has reviewed this patch and found no issues. It looks great!

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