From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 37C171EEA49; Sun, 20 Apr 2025 07:14:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745133291; cv=none; b=L84JWn20ARDG4FCOXb3XYErDVUTXF3IqaSIVNFgccv2BTUaB8i3w0053HnPrRVz90N7+xYnv7McnrhcRwde3BRpXqH7QXdx5kaBmk0uS/tPsH6tNNLf3JwjRtZY6JTK4tSXbMG4tGSWdqF2G6nBAeAHbG9aRqIiAarqxGEFLaK8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745133291; c=relaxed/simple; bh=SpNXshGC4uEadiZ9mic8rX/qeMHOKG3enirsdDCvXf0=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=LzNpRyd/M8rladr6YKym5WHYbrmN9JfulukOBBRk6uD7GxPPTj8yiPkM+Azk2gM1J7AvXyRneHaC0Nwluj3dPaFwx0+2VQTLHJ1TvvbS+/0VHp4enSEqzHxJltbFDYXecLBaO2nGxMvL3EJYy5TeeA8T6Kwf9bdFWkXqeGqgoW0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=N9hnRRtm; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="N9hnRRtm" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D2E37C4CEE2; Sun, 20 Apr 2025 07:14:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1745133290; bh=SpNXshGC4uEadiZ9mic8rX/qeMHOKG3enirsdDCvXf0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=N9hnRRtmNHfnuM6gp/E+KrJvokqSb71oYMhBqMYRZgnnOGfewaBmv+VxsqSvw2mx7 2fUdjbY/H46G3VKGRBnVwSy+Gjl4Z6RSMWeY14FJU6YmfQyL7kYGD5MBt7GIedAPYf WshWPr5dJTN9Wmr96QKS9Qodv+qsrhzEMuJXAU6Bd5tnDEQoGrprjYI9sbQ8XZCPzs 8+caVRnyAL4BM9TX5W2rx5tKmtonDo4tGbYQ3BgJlrPC3GoZ4wZDsnfOB4NIgP2BY7 tY3+8mvVofskwTyS6lS/IiWKwTGTcxkr24eh0/y5LbaD9SKuEGZVJwz5YEwht/9f63 yZpV0FW9cb2BA== Date: Sun, 20 Apr 2025 10:14:46 +0300 From: Leon Romanovsky To: Jens Axboe Cc: Marek Szyprowski , 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 , =?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 Subject: Re: [PATCH v8 00/24] Provide a new two step DMA mapping API Message-ID: <20250420071446.GB10635@unreal> References: <93ef8629-4040-4773-beac-03c62f848727@kernel.dk> 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: <93ef8629-4040-4773-beac-03c62f848727@kernel.dk> On Fri, Apr 18, 2025 at 06:18:00AM -0600, Jens Axboe wrote: > On 4/18/25 12:47 AM, Leon Romanovsky wrote: > > 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/20250320111328.2841690-1-mcgrof@kernel.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. > > Since I previously complained about performance regressions from this > series, I re-tested the current code. I no longer see a performance > regression on a AMD EPYC 9754 256 core box, nor on AMD EPYC 7763 128 > core box. > > Tested-by: Jens Axboe Thanks a lot. > > -- > Jens Axboe >