From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 56A86C369CB for ; Wed, 23 Apr 2025 17:59:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=l8sRLC6UVSm24vNkdQycXdmY0wx1+hh4Raw1PMph5OE=; b=drsMBChGcH2zTwyabOMS5AkWhO TR5K321aHOSDk4rmwKtOc4hhsR9a7QmvxVJEzukiaMFI5Bzsoct0nA8BHnP4ka5F5Vq0nJuhU7j/m nkywwIc75QQ82351w86dcw5Ko/lnDdS3Wx9yr5GN9KScBwT3WV3BEHVXUxwWf7TYosWN2H/0hDu8Y syCjX5rz9v0gFqGEwU1VYVnSTS5eUfHw/iRTdatvqf12hJ2OANJsLcvhjW6jXUA/nendPPLnHOnXJ SPe/4+bGB+m4F8SktGJRENETq64fzG/1Gh5NqYDpCE4tFIosiqdZ2Wz6Vymr/aKtJwXHa4auJ75xz PS3xfaLg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1u7eN9-0000000BRy8-0VRC; Wed, 23 Apr 2025 17:58:59 +0000 Received: from verein.lst.de ([213.95.11.211]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1u7cJj-0000000B11b-3wrk for linux-nvme@lists.infradead.org; Wed, 23 Apr 2025 15:47:22 +0000 Received: by verein.lst.de (Postfix, from userid 2407) id 8A79D68C4E; Wed, 23 Apr 2025 17:47:12 +0200 (CEST) Date: Wed, 23 Apr 2025 17:47:12 +0200 From: Christoph Hellwig To: Leon Romanovsky Cc: Christoph Hellwig , Keith Busch , Marek Szyprowski , Jens Axboe , 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 , =?iso-8859-1?B?Suly9G1l?= Glisse , 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 , Nitesh Shetty Subject: Re: [PATCH v9 23/24] nvme-pci: convert to blk_rq_dma_map Message-ID: <20250423154712.GA32009@lst.de> References: <7c5c5267cba2c03f6650444d4879ba0d13004584.1745394536.git.leon@kernel.org> <20250423092437.GA1895@lst.de> <20250423100314.GH48485@unreal> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250423100314.GH48485@unreal> User-Agent: Mutt/1.5.17 (2007-11-01) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250423_084720_134903_28C1E44D X-CRM114-Status: GOOD ( 17.32 ) X-Mailman-Approved-At: Wed, 23 Apr 2025 10:47:25 -0700 X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org On Wed, Apr 23, 2025 at 01:03:14PM +0300, Leon Romanovsky wrote: > On Wed, Apr 23, 2025 at 11:24:37AM +0200, Christoph Hellwig wrote: > > I don't think the meta SGL handling is quite right yet, and the > > single segment data handling also regressed. Totally untested > > patch below, I'll try to allocate some testing time later today. > > Christoph, > > Can we please progress with the DMA patches and leave NVMe for later? > NVMe is one the users for new DMA API, let's merge API first. We'll need to merge the block/nvme patches through the block tree anyway to avoid merges from hell, so yes.