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Message-ID: <11fede06-0481-511a-f9d0-7393339b05d1@intel.com>
Date:   Mon, 5 Dec 2022 09:19:46 -0800
From:   Reinette Chatre <reinette.chatre@...el.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        LKML <linux-kernel@...r.kernel.org>
CC:     <x86@...nel.org>, Joerg Roedel <joro@...tes.org>,
        Will Deacon <will@...nel.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>,
        Dave Jiang <dave.jiang@...el.com>,
        "Alex Williamson" <alex.williamson@...hat.com>,
        Kevin Tian <kevin.tian@...el.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Logan Gunthorpe <logang@...tatee.com>,
        Ashok Raj <ashok.raj@...el.com>, Jon Mason <jdmason@...zu.us>,
        Allen Hubbe <allenbh@...il.com>,
        "Ahmed S. Darwish" <darwi@...utronix.de>
Subject: Re: [patch 33/33] irqchip: Add IDXD Interrupt Message Store driver

Hi Thomas,

On 12/5/2022 7:20 AM, Thomas Gleixner wrote:
> On Fri, Dec 02 2022 at 20:51, Thomas Gleixner wrote:
>> On Fri, Dec 02 2022 at 09:55, Reinette Chatre wrote:
>>> With the first change I am able to test IMS on the host using devmsi-v2-part3
>>> of the development branch. I did try to update to the most recent development
>>> to confirm all is well but version devmsi-v3.1-part3 behaves differently
>>> in that pci_ims_alloc_irq() returns successfully but the returned
>>> virq is 0. This triggers a problem when request_threaded_irq() runs and
>>> reports:
>>> genirq: Flags mismatch irq 0. 00000000 (idxd-portal) vs. 00015a00 (timer)
>>
>> Bah. Let me figure out what I fat-fingered there.
> 
> tag devmsi-v3.2-part3 works again.

Thank you very much.

This tag is not yet available but I can confirm that the current tip of
devmsi, 6bd4ee6cb126 ("irqchip: Add IDXD Interrupt Message Store driver"),
combined with the earlier irqchip driver delta snippet passes the "dedicated
kernel work queue using host IMS" tests.

Reinette

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