linux-kernel - Re: [patch 33/33] irqchip: Add IDXD Interrupt Message Store driver

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Date:   Mon, 05 Dec 2022 16:20:31 +0100
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Reinette Chatre <reinette.chatre@...el.com>,
        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

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.