linux-kernel - RE: [patch V2 27/33] genirq/msi: Provide constants for PCI/IMS support

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Date:   Thu, 24 Nov 2022 10:10:05 +0100
From:   Thomas Gleixner <tglx@...utronix.de>
To:     "Tian, Kevin" <kevin.tian@...el.com>,
        LKML <linux-kernel@...r.kernel.org>
Cc:     "x86@...nel.org" <x86@...nel.org>, Joerg Roedel <joro@...tes.org>,
        Will Deacon <will@...nel.org>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Marc Zyngier <maz@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jason Gunthorpe <jgg@...lanox.com>,
        "Jiang, Dave" <dave.jiang@...el.com>,
        Alex Williamson <alex.williamson@...hat.com>,
        "Williams, Dan J" <dan.j.williams@...el.com>,
        Logan Gunthorpe <logang@...tatee.com>,
        "Raj, Ashok" <ashok.raj@...el.com>, Jon Mason <jdmason@...zu.us>,
        Allen Hubbe <allenbh@...il.com>
Subject: RE: [patch V2 27/33] genirq/msi: Provide constants for PCI/IMS support

On Thu, Nov 24 2022 at 03:01, Kevin Tian wrote:
>> From: Thomas Gleixner <tglx@...utronix.de>
>> @@ -15,6 +15,7 @@ struct device;
>>   */
>>  enum msi_domain_ids {
>>  	MSI_DEFAULT_DOMAIN,
>> +	MSI_SECONDARY_DOMAIN,
>>  	MSI_MAX_DEVICE_IRQDOMAINS,
>
> SECONDARY or be explicit IMS? Are we envisioning non-IMS usages to
> occupy this slot in the future?

I'm not really decided on that. Whatever the name or use-case for a
secondary domain is. Not, that this is not restricted to PCI.

Thanks,

        tglx