linux-kernel - [PATCH v3] PCI/portdrv: Allow AER service only for Root Ports & RCECs

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Message-Id: <20231214214540.4542-1-mattc@purestorage.com>
Date: Thu, 14 Dec 2023 14:45:40 -0700
From: Matthew W Carlis <mattc@...estorage.com>
To: helgaas@...nel.org
Cc: bhelgaas@...gle.com,
	linux-kernel@...r.kernel.org,
	linux-pci@...r.kernel.org,
	mattc@...estorage.com,
	mika.westerberg@...ux.intel.com,
	sathyanarayanan.kuppuswamy@...ux.intel.com
Subject: [PATCH v3] PCI/portdrv: Allow AER service only for Root Ports & RCECs

Hi Bjorn.

Thank you for the quick response, it looks correct that this is first in v6.2.
My thinking is that the kernel should use DPC on a switch port if it would
use it on a root port when dpc-native is not set. I would be happy to post a
formal patch for this. Maybe using host->native_aer is the correct way to
ensure that the kernel in this system will be using AER, maybe not on this
device but it will on some device. Then, can proceed to use DPC on the device.

I will submit something in the next few days here. Also, sorry if you
received this email twice.. Mistake on my part.

Cheers!
-Matt