linux-kernel - Re: [PATCH v13 0/6] iommu/dma: s390 DMA API conversion and optimized IOTLB flushing

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Message-ID: <dec2767815f6f765c452a025ccec1ce6d3635cdd.camel@linux.ibm.com>
Date:   Wed, 04 Oct 2023 10:54:58 +0200
From:   Niklas Schnelle <schnelle@...ux.ibm.com>
To:     Joerg Roedel <joro@...tes.org>
Cc:     Matthew Rosato <mjrosato@...ux.ibm.com>,
        Will Deacon <will@...nel.org>,
        Wenjia Zhang <wenjia@...ux.ibm.com>,
        Robin Murphy <robin.murphy@....com>,
        Jason Gunthorpe <jgg@...pe.ca>,
        Gerd Bayer <gbayer@...ux.ibm.com>,
        Julian Ruess <julianr@...ux.ibm.com>,
        Pierre Morel <pmorel@...ux.ibm.com>,
        Alexandra Winter <wintera@...ux.ibm.com>,
        Heiko Carstens <hca@...ux.ibm.com>,
        Vasily Gorbik <gor@...ux.ibm.com>,
        Alexander Gordeev <agordeev@...ux.ibm.com>,
        Christian Borntraeger <borntraeger@...ux.ibm.com>,
        Sven Schnelle <svens@...ux.ibm.com>,
        Suravee Suthikulpanit <suravee.suthikulpanit@....com>,
        Hector Martin <marcan@...can.st>,
        Sven Peter <sven@...npeter.dev>,
        Alyssa Rosenzweig <alyssa@...enzweig.io>,
        David Woodhouse <dwmw2@...radead.org>,
        Lu Baolu <baolu.lu@...ux.intel.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Yong Wu <yong.wu@...iatek.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Gerald Schaefer <gerald.schaefer@...ux.ibm.com>,
        Orson Zhai <orsonzhai@...il.com>,
        Baolin Wang <baolin.wang@...ux.alibaba.com>,
        Chunyan Zhang <zhang.lyra@...il.com>,
        Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Samuel Holland <samuel@...lland.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Krishna Reddy <vdumpa@...dia.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Jonathan Corbet <corbet@....net>, linux-s390@...r.kernel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        iommu@...ts.linux.dev, asahi@...ts.linux.dev,
        linux-arm-kernel@...ts.infradead.org,
        linux-arm-msm@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        linux-sunxi@...ts.linux.dev, linux-tegra@...r.kernel.org,
        linux-doc@...r.kernel.org
Subject: Re: [PATCH v13 0/6] iommu/dma: s390 DMA API conversion and
 optimized IOTLB flushing

On Mon, 2023-10-02 at 08:59 +0200, Joerg Roedel wrote:
> On Thu, Sep 28, 2023 at 04:31:34PM +0200, Niklas Schnelle wrote:
> > Niklas Schnelle (6):
> >       iommu: Allow .iotlb_sync_map to fail and handle s390's -ENOMEM return
> >       s390/pci: prepare is_passed_through() for dma-iommu
> >       s390/pci: Use dma-iommu layer
> >       iommu/s390: Disable deferred flush for ISM devices
> >       iommu/dma: Allow a single FQ in addition to per-CPU FQs
> >       iommu/dma: Use a large flush queue and timeout for shadow_on_flush
> 
> Applied, thanks Niklas.
> 

Thank you Joerg. During some more testing I've found a minor issue
where resetting the debug statistics still used the now obsolete
counters that should have been removed. So I'll send a follow up patch,
sorry for not noticing this sooner.

Thanks,
Niklas