From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) (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 F3B4F296D05; Wed, 23 Apr 2025 15:47:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.95.11.211 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745423240; cv=none; b=DfVx9em+BQayu6b50vimGdhj2TQJ1ahPDRW4GMRrahnaAOCSZ4yNg6m0QIdKcC3fkfFL3TD50PRL1035cNKmli4q2S5YRDrNfod0w5lIhe7fPeEmjCZmZN5LU5HfHCfbwrF6mZVINusEXsV67p/z6OmeQ+7hopalwX2piOmh/xI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745423240; c=relaxed/simple; bh=d0E+HtNmdn/LhlxxF/h1C5SJbuFpS6D0hMGAOAoU4xM=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=rrkh6bFRR5ynbbwrsgCDcgOccElvNR8M494sc0lAf50mG07s1SBBKdBzPdNA3agjI5YSvJsplYRxi8XG/de6A9LeX7Tbx2LfkgNQejx1LwnSKI1BjlNDW6yeMns++hORZ0Vy/gCq+2vf05xB9esRKM4FpKDhkB5FqU6N0CBij8Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lst.de; spf=pass smtp.mailfrom=lst.de; arc=none smtp.client-ip=213.95.11.211 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lst.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=lst.de 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> Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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) 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.