linux-kernel - Re: [PATCH 0/2] PCI: Fix ACS enablement for Root Ports in DT platforms

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Message-ID: <20250924125555.GJ2547959@ziepe.ca>
Date: Wed, 24 Sep 2025 09:55:55 -0300
From: Jason Gunthorpe <jgg@...pe.ca>
To: Manivannan Sadhasivam <mani@...nel.org>
Cc: Manivannan Sadhasivam <manivannan.sadhasivam@....qualcomm.com>,
	Bjorn Helgaas <bhelgaas@...gle.com>, Joerg Roedel <joro@...tes.org>,
	Will Deacon <will@...nel.org>, Robin Murphy <robin.murphy@....com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
	Joerg Roedel <jroedel@...e.de>, iommu@...ts.linux.dev,
	Anders Roxell <anders.roxell@...aro.org>,
	Naresh Kamboju <naresh.kamboju@...aro.org>,
	Pavankumar Kondeti <quic_pkondeti@...cinc.com>,
	Xingang Wang <wangxingang5@...wei.com>,
	Marek Szyprowski <m.szyprowski@...sung.com>, stable@...r.kernel.org
Subject: Re: [PATCH 0/2] PCI: Fix ACS enablement for Root Ports in DT
 platforms

On Wed, Sep 24, 2025 at 01:51:23PM +0530, Manivannan Sadhasivam wrote:

> This device is not spec conformant in many areas tbh. But my
> suggestion would be to follow the vendor suggested erratum until any
> reported issues.

I mean the ethernet chip retaining it's SBR after a FLR or link up/down
is probably not a spec requirement..

Jason