linux-kernel - Re: [PATCH v3 1/5] PCI/ACPI: Add _OSC based negotiation support for DPC

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Message-ID: <20190531130336.GO28250@google.com>
Date:   Fri, 31 May 2019 08:03:36 -0500
From:   Bjorn Helgaas <helgaas@...nel.org>
To:     sathyanarayanan.kuppuswamy@...ux.intel.com
Cc:     linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
        ashok.raj@...el.com, keith.busch@...el.com
Subject: Re: [PATCH v3 1/5] PCI/ACPI: Add _OSC based negotiation support for
 DPC

On Tue, May 14, 2019 at 03:18:13PM -0700, sathyanarayanan.kuppuswamy@...ux.intel.com wrote:
> From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@...ux.intel.com>
> 
> As per PCI Firmware Specification, r3.2 ECN
> (https://members.pcisig.com/wg/PCI-SIG/document/12614), OS can use
> bit 7 of _OSC Control Field to negotiate control over Downstream Port
> Containment (DPC) configuration of PCIe port.

I think this citation should reference the "Downstream Port
Containment Related Enhancements ECN", i.e., it should include the
title of the ECN.  I first thought you were citing the PCI Firmware
Spec, r3.2, but of course it's not in there.

Bjorn