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Wed, 27 Sep 2023 11:24:04 GMT Received: from smtpav05.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 080D320043; Wed, 27 Sep 2023 11:24:04 +0000 (GMT) Received: from smtpav05.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 7A7BC2004B; Wed, 27 Sep 2023 11:24:03 +0000 (GMT) Received: from [9.152.212.236] (unknown [9.152.212.236]) by smtpav05.fra02v.mail.ibm.com (Postfix) with ESMTP; Wed, 27 Sep 2023 11:24:03 +0000 (GMT) Message-ID: Subject: Re: [PATCH v12 0/6] iommu/dma: s390 DMA API conversion and optimized IOTLB flushing From: Niklas Schnelle To: Joerg Roedel Cc: Jason Gunthorpe , Matthew Rosato , Will Deacon , Wenjia Zhang , Robin Murphy , Gerd Bayer , Julian Ruess , Pierre Morel , Alexandra Winter , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Suravee Suthikulpanit , Hector Martin , Sven Peter , Alyssa Rosenzweig , David Woodhouse , Lu Baolu , Andy Gross , Bjorn Andersson , Konrad Dybcio , Yong Wu , Matthias Brugger , AngeloGioacchino Del Regno , Gerald Schaefer , Orson Zhai , Baolin Wang , Chunyan Zhang , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Thierry Reding , Krishna Reddy , Jonathan Hunter , Jonathan Corbet , linux-s390@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, iommu@lists.linux.dev, asahi@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-tegra@vger.kernel.org, linux-doc@vger.kernel.org Date: Wed, 27 Sep 2023 13:24:03 +0200 In-Reply-To: References: <20230825-dma_iommu-v12-0-4134455994a7@linux.ibm.com> <20230926160832.GM13795@ziepe.ca> User-Agent: Evolution 3.48.4 (3.48.4-1.fc38) MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: bLtkRXrEY3SfXBdyvYi4Yk-ISraKqz9W X-Proofpoint-ORIG-GUID: 0_s5ZArBvU0BtJm2m4rsOO0oeH2MXCgb X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.980,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-09-27_06,2023-09-27_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 phishscore=0 spamscore=0 mlxlogscore=646 priorityscore=1501 clxscore=1015 lowpriorityscore=0 impostorscore=0 suspectscore=0 malwarescore=0 mlxscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2309180000 definitions=main-2309270092 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230927_042433_038683_D8DC5BEB X-CRM114-Status: GOOD ( 22.68 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel