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:

quoted

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

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