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

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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.


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