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

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To: Niklas Schnelle <schnelle@xxxxxxxxxxxxx>
Subject: Re: [PATCH v12 0/6] iommu/dma: s390 DMA API conversion and optimized IOTLB flushing
From: Joerg Roedel <joro@xxxxxxxxxx>
Date: Wed, 27 Sep 2023 11:55:22 +0200
Cc: Jason Gunthorpe <jgg@xxxxxxxx>, Matthew Rosato <mjrosato@xxxxxxxxxxxxx>, Will Deacon <will@xxxxxxxxxx>, Wenjia Zhang <wenjia@xxxxxxxxxxxxx>, Robin Murphy <robin.murphy@xxxxxxx>, Gerd Bayer <gbayer@xxxxxxxxxxxxx>, Julian Ruess <julianr@xxxxxxxxxxxxx>, Pierre Morel <pmorel@xxxxxxxxxxxxx>, Alexandra Winter <wintera@xxxxxxxxxxxxx>, Heiko Carstens <hca@xxxxxxxxxxxxx>, Vasily Gorbik <gor@xxxxxxxxxxxxx>, Alexander Gordeev <agordeev@xxxxxxxxxxxxx>, Christian Borntraeger <borntraeger@xxxxxxxxxxxxx>, Sven Schnelle <svens@xxxxxxxxxxxxx>, Suravee Suthikulpanit <suravee.suthikulpanit@xxxxxxx>, Hector Martin <marcan@xxxxxxxxx>, Sven Peter <sven@xxxxxxxxxxxxx>, Alyssa Rosenzweig <alyssa@xxxxxxxxxxxxx>, David Woodhouse <dwmw2@xxxxxxxxxxxxx>, Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>, Andy Gross <agross@xxxxxxxxxx>, Bjorn Andersson <andersson@xxxxxxxxxx>, Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>, Yong Wu <yong.wu@xxxxxxxxxxxx>, Matthias Brugger <matthias.bgg@xxxxxxxxx>, AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>, Gerald Schaefer <gerald.schaefer@xxxxxxxxxxxxx>, Orson Zhai <orsonzhai@xxxxxxxxx>, Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx>, Chunyan Zhang <zhang.lyra@xxxxxxxxx>, Chen-Yu Tsai <wens@xxxxxxxx>, Jernej Skrabec <jernej.skrabec@xxxxxxxxx>, Samuel Holland <samuel@xxxxxxxxxxxx>, Thierry Reding <thierry.reding@xxxxxxxxx>, Krishna Reddy <vdumpa@xxxxxxxxxx>, Jonathan Hunter <jonathanh@xxxxxxxxxx>, Jonathan Corbet <corbet@xxxxxxx>, linux-s390@xxxxxxxxxxxxxxx, netdev@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, iommu@xxxxxxxxxxxxxxx, asahi@xxxxxxxxxxxxxxx, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, linux-arm-msm@xxxxxxxxxxxxxxx, linux-mediatek@xxxxxxxxxxxxxxxxxxx, linux-sunxi@xxxxxxxxxxxxxxx, linux-tegra@xxxxxxxxxxxxxxx, linux-doc@xxxxxxxxxxxxxxx
In-reply-to: <cfc9e9128ed5571d2e36421e347301057662a09e.camel@linux.ibm.com>
References: <20230825-dma_iommu-v12-0-4134455994a7@linux.ibm.com> <ZRLy_AaJiXxZ2AfK@8bytes.org> <20230926160832.GM13795@ziepe.ca> <cfc9e9128ed5571d2e36421e347301057662a09e.camel@linux.ibm.com>

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

Follow-Ups:
- Re: [PATCH v12 0/6] iommu/dma: s390 DMA API conversion and optimized IOTLB flushing
  - From: Niklas Schnelle

References:
- [PATCH v12 0/6] iommu/dma: s390 DMA API conversion and optimized IOTLB flushing
  - From: Niklas Schnelle
- Re: [PATCH v12 0/6] iommu/dma: s390 DMA API conversion and optimized IOTLB flushing
  - From: Joerg Roedel
- Re: [PATCH v12 0/6] iommu/dma: s390 DMA API conversion and optimized IOTLB flushing
  - From: Jason Gunthorpe
- Re: [PATCH v12 0/6] iommu/dma: s390 DMA API conversion and optimized IOTLB flushing
  - From: Niklas Schnelle

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