netdev - Re: [PATCH v8 0/6] iommu/dma: s390 DMA API conversion and optimized IOTLB flushing

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Message-ID: <ZF5NRls92rhmzV7B@infradead.org>
Date: Fri, 12 May 2023 07:29:26 -0700
From: Christoph Hellwig <hch@...radead.org>
To: Niklas Schnelle <schnelle@...ux.ibm.com>
Cc: Joerg Roedel <joro@...tes.org>, 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 v8 0/6] iommu/dma: s390 DMA API conversion and optimized
 IOTLB flushing

On Fri, Mar 10, 2023 at 05:07:45PM +0100, Niklas Schnelle wrote:
> Hi All,
> 
> This patch series converts s390's PCI support from its platform specific DMA
> API implementation in arch/s390/pci/pci_dma.c to the common DMA IOMMU layer.
> The conversion itself is done in patches 3-4 with patch 2 providing the final
> necessary IOMMU driver improvement to handle s390's special IOTLB flush
> out-of-resource indication in virtualized environments. Patches 1-2 may be
> applied independently. The conversion itself only touches the s390 IOMMU driver
> and s390 arch code moving over remaining functions from the s390 DMA API
> implementation. No changes to common code are necessary.

It looks like this still hasn't made it upstream as of 6.4-rc1.  What's
holding this series up?