From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailout1.w1.samsung.com (mailout1.w1.samsung.com [210.118.77.11]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 94CFC24C092; Tue, 6 May 2025 08:55:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.118.77.11 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746521737; cv=none; b=LwqjJoH68Tc1jq/Mh6cT5jZd1sHmcR5rLV7/qYYAfNsr6M878NeYOkGwOLQu3NrEWTTxMij5RfcIxO1Z4dUIMZfFRYYJUdtA7RBhtuJLyQ3Y6P03nS6aUD0PDS9BTNyxwTXbQiky90EtGvs6c5OoJ/gjCBPcMn28nXbPymTLJ7s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746521737; c=relaxed/simple; bh=cMDuM3j7k5cTHN/7wO5B3vJg3iC+cUHTDsqOA5STSCA=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:From:In-Reply-To: Content-Type:References; b=T2GuVZsc90OS8yY+yx4aUnj8zBLKF+G5VTCbShliRQuF2LzxSIoJTMZ8xVnJZd5+Y+/WPnuiVlAzJKY/56VZOrC+mHrO2g7NWfRAeUN5CAJhg3TBa5Ye3tCBERsfhlmZ8vJTyBjKKJdpR+13TmAnEInPTg8770S7Xj7d8sGrDfM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=samsung.com; spf=pass smtp.mailfrom=samsung.com; dkim=pass (1024-bit key) header.d=samsung.com header.i=@samsung.com header.b=C21FMLvT; arc=none smtp.client-ip=210.118.77.11 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=samsung.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=samsung.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=samsung.com header.i=@samsung.com header.b="C21FMLvT" Received: from eucas1p2.samsung.com (unknown [182.198.249.207]) by mailout1.w1.samsung.com (KnoxPortal) with ESMTP id 20250506085527euoutp015fca07206c784e5761f1f8a188abe8f5~85EHmujOw3188231882euoutp01i; Tue, 6 May 2025 08:55:27 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout1.w1.samsung.com 20250506085527euoutp015fca07206c784e5761f1f8a188abe8f5~85EHmujOw3188231882euoutp01i DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1746521727; bh=a9nf+a3zOwcPKwqh9B0OLR/Jw+1OSvSECo9idk1FbTE=; h=Date:Subject:To:Cc:From:In-Reply-To:References:From; b=C21FMLvTm2rnAQxHrZ+XjlwShdIolbFmzs5OV92e64+XWXfkvyqlAqyB+SqMI8FWy gzLOR6h8hKT7nwqPnqVkMOQLWo7Bynuo9GrjINMuxW5+0PVvkLxThRfZTzS3j9hgVr q6wpBuza63nwFWaICKN2JQP8BsKq4m32MwuwlaaI= Received: from eusmtip2.samsung.com (unknown [203.254.199.222]) by eucas1p1.samsung.com (KnoxPortal) with ESMTPA id 20250506085526eucas1p1b3eca35ab5da96d65930d05e3de8871f~85EHQg5bx1239412394eucas1p1s; Tue, 6 May 2025 08:55:26 +0000 (GMT) Received: from [106.210.134.192] (unknown [106.210.134.192]) by eusmtip2.samsung.com (KnoxPortal) with ESMTPA id 20250506085524eusmtip25604952270886300d2a204bfc62676fe~85EEuyRQL3058030580eusmtip2d; Tue, 6 May 2025 08:55:24 +0000 (GMT) Message-ID: <2e89d7e2-9146-46c7-86b0-8023483e5e07@samsung.com> Date: Tue, 6 May 2025 10:55:23 +0200 Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v11 0/9] Provide a new two step DMA mapping API To: Leon Romanovsky Cc: Jens Axboe , Christoph Hellwig , Keith Busch , Jake Edge , Jonathan Corbet , Jason Gunthorpe , Zhu Yanjun , Robin Murphy , Joerg Roedel , Will Deacon , Sagi Grimberg , Bjorn Helgaas , Logan Gunthorpe , Yishai Hadas , Shameer Kolothum , Kevin Tian , Alex Williamson , =?UTF-8?B?SsOpcsO0bWUgR2xpc3Nl?= , Andrew Morton , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, linux-rdma@vger.kernel.org, iommu@lists.linux.dev, linux-nvme@lists.infradead.org, linux-pci@vger.kernel.org, kvm@vger.kernel.org, linux-mm@kvack.org, Niklas Schnelle , Chuck Lever , Luis Chamberlain , Matthew Wilcox , Dan Williams , Kanchan Joshi , Chaitanya Kulkarni Content-Language: en-US From: Marek Szyprowski In-Reply-To: Content-Transfer-Encoding: 7bit X-CMS-MailID: 20250506085526eucas1p1b3eca35ab5da96d65930d05e3de8871f X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-RootMTR: 20250505070202eucas1p19aa3caffab7176123323fe5462773c8e X-EPHeader: CA X-CMS-RootMailID: 20250505070202eucas1p19aa3caffab7176123323fe5462773c8e References: On 05.05.2025 09:01, Leon Romanovsky wrote: > Hi Marek, > > These are the DMA/IOMMU patches only, which have not seen functional > changes for a while. They are tested and reviewed and ready to merge. > > We will work with relevant subsystems to merge rest of the conversion > patches. At least some of them will be done in next cycle to reduce > merge conflicts. > > Thanks > > ========================================================================= > Following recent on site LSF/MM 2025 [1] discussion, the overall > response was extremely positive with many people expressed their > desire to see this series merged, so they can base their work on it. > > It includes, but not limited: > * Luis's "nvme-pci: breaking the 512 KiB max IO boundary": > https://lore.kernel.org/all/20250320111328.2841690-1-mcgrof@kernel.org/ > * Chuck's NFS conversion to use one structure (bio_vec) for all types > of RPC transports: > https://lore.kernel.org/all/913df4b4-fc4a-409d-9007-088a3e2c8291@oracle.com > * Matthew's vision for the world without struct page: > https://lore.kernel.org/all/Z-WRQOYEvOWlI34w@casper.infradead.org/ > * Confidential computing roadmap from Dan: > https://lore.kernel.org/all/6801a8e3968da_71fe29411@dwillia2-xfh.jf.intel.com.notmuch > > This series is combination of effort of many people who contributed ideas, > code and testing and I'm gratefully thankful for them. Thanks everyone involved in this contribution. I appreciate the effort of showing that such new API is really needed and will be used by other subsystems. I see benefits from this approach and I hope that any pending issues can be resolved incrementally. I've applied this patchset to dma-mapping-next branch and it will be also available as dma-mapping-for-6.16-two-step-api [1] stable branch for those who wants to base their pending work on it. [1] https://web.git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux.git/log/?h=dma-mapping-for-6.16-two-step-api > ... Best regards -- Marek Szyprowski, PhD Samsung R&D Institute Poland