netdev - Re: [PATCH v12 0/6] iommu/dma: s390 DMA API conversion and optimized IOTLB flushing

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <b06a14de270a63050b0d027c24b333dba25001a4.camel@linux.ibm.com>
Date: Wed, 27 Sep 2023 13:24:03 +0200
From: Niklas Schnelle <schnelle@...ux.ibm.com>
To: Joerg Roedel <joro@...tes.org>
Cc: Jason Gunthorpe <jgg@...pe.ca>, Matthew Rosato <mjrosato@...ux.ibm.com>,
        Will Deacon <will@...nel.org>, Wenjia Zhang <wenjia@...ux.ibm.com>,
        Robin
 Murphy <robin.murphy@....com>,
        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 v12 0/6] iommu/dma: s390 DMA API conversion and
 optimized IOTLB flushing

On Wed, 2023-09-27 at 11:55 +0200, Joerg Roedel wrote:
> Hi Niklas,
> 
> On Wed, Sep 27, 2023 at 10:55:23AM +0200, Niklas Schnelle wrote:
> > The problem is that something seems to  be broken in the iommu/core
> > branch. Regardless of whether I have my DMA API conversion on top or
> > with the base iommu/core branch I can not use ConnectX-4 VFs.
> 
> Have you already tried to bisect the issue in the iommu/core branch?
> The result might sched some light on the issue.
> 
> Regards,
> 
> 	Joerg

Hi Joerg,

Working on it, somehow I must have messed up earlier. It now looks like
it might in fact be caused by my DMA API conversion rebase and the
"s390/pci: Use dma-iommu layer" commit. Maybe there is some interaction
with Jason's patches that I haven't thought about. So sorry for any
wrong blame.

Thanks,
Niklas