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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 301C1C54798 for ; Tue, 27 Feb 2024 11:30:16 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 490966B00CE; Tue, 27 Feb 2024 06:30:15 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 3F1056B00CF; Tue, 27 Feb 2024 06:30:15 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 269AD6B00D0; Tue, 27 Feb 2024 06:30:15 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id 0DCC76B00CE for ; Tue, 27 Feb 2024 06:30:15 -0500 (EST) Received: from smtpin29.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay07.hostedemail.com (Postfix) with ESMTP id D8630160B74 for ; Tue, 27 Feb 2024 11:30:14 +0000 (UTC) X-FDA: 81837365148.29.F4D7D75 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by imf18.hostedemail.com (Postfix) with ESMTP id 5F9CB1C000F for ; Tue, 27 Feb 2024 11:30:13 +0000 (UTC) Authentication-Results: imf18.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=NHOX5rpX; spf=pass (imf18.hostedemail.com: domain of leon@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=leon@kernel.org; dmarc=pass (policy=none) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1709033413; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=af7x+9XyGriFG11mPuKrh/48BPo5FaZITyInpvbr7W4=; b=LIOrrkNpQkHE4IrSXL0PBQY9CF1O8UXFOxXtr57GQ0pwO5//69u0yyJqjFLo5Ml99hy8Z6 b/f74phAfBAJ4EaspHo3zgvCNhiwDSEfARD5sLKKLN4VyMbvFeTmJZzTyDydEFB/BSImue IapXoyrnFJv8zZsOgLVPxKJLlQlc6+o= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1709033413; a=rsa-sha256; cv=none; b=vPzl/NKe1lli+/iMpOHR0tvLg5oMQB/b9g62UtNnO5meOr9XlUKG9M6AUOdSocAakSzudR 1uqg32pQX37uTPb/xJc1AYd3BINwojcsmJqbfvUve9WbMuMAHUSueviFN4xkWzwkoHfwv/ EA+8WdZtzdSuqlvinu7LY7cPqwovcUc= ARC-Authentication-Results: i=1; imf18.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=NHOX5rpX; spf=pass (imf18.hostedemail.com: domain of leon@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=leon@kernel.org; dmarc=pass (policy=none) header.from=kernel.org Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 5943861482; Tue, 27 Feb 2024 11:30:12 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4D62BC433F1; Tue, 27 Feb 2024 11:30:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1709033412; bh=kdrZaX0aMKIkA+JGeMkKBVsvA05i0ftiJZuPnMvGgP4=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=NHOX5rpX6BtMKfbOHHkQRkSOBZi6bLMMy0wao6khQStgIZm1d1qkcj1x7f+WTuxf2 t43rqIOoAYCXZXM+0z28Q5aPOzeDTgrDf9auFw17UX/gJPb0dNe+sW7vEtU+Bd2lCR sUIzylUAVVqEdhvwpWRcUZ3y4swv8UWZVcbLz7ksl4blN9rGrURxyv44peMxBrf5FO V8THu/sFza5RyopfTx/5+7sw2YjmKOR+/jdtWjQ+9WjUl4FnyIEOhk5DkrVl0WKV/H LLJ89HcJ0hcwesqoGZqet+1jKymjr/gArdqFGkoz5ckIpfFcBNbSNwTkfUZQsiX0t6 MH2MMNrhR9Mog== Date: Tue, 27 Feb 2024 13:30:07 +0200 From: Leon Romanovsky To: Chaitanya Kulkarni Cc: "lsf-pc@lists.linux-foundation.org" , "linux-block@vger.kernel.org" , "linux-nvme@lists.infradead.org" , "iommu@lists.linux.dev" , linux-rdma , "linux-mm@kvack.org" , Jens Axboe , Bart Van Assche , "kbusch@kernel.org" , Damien Le Moal , Amir Goldstein , "josef@toxicpanda.com" , "Martin K. Petersen" , "daniel@iogearbox.net" , Christoph Hellwig , Dan Williams , "jack@suse.com" , Jason Gunthorpe , Chuck Lever Subject: Re: [LSF/MM/BPF TOPIC] [LSF/MM/BPF ATTEND] : Two stage IOMMU DMA mapping operations Message-ID: <20240227113007.GD1842804@unreal> References: <97f385db-42c9-4c04-8fba-9b1ba8ffc525@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <97f385db-42c9-4c04-8fba-9b1ba8ffc525@nvidia.com> X-Rspamd-Queue-Id: 5F9CB1C000F X-Rspam-User: X-Stat-Signature: txw3xjbn5djffofnmwo4g4e8s6nooctj X-Rspamd-Server: rspam03 X-HE-Tag: 1709033413-137595 X-HE-Meta: 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Tue, Feb 27, 2024 at 08:17:27AM +0000, Chaitanya Kulkarni wrote: > Hi, <...> > In order to create a good platform for a concrete and meaningful > discussion at LSFMM 24, we plan to post an RFC within the next two weeks. The code can be found here https://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma.git/log/?h=dma-split Thanks > > Required Attendees list :- > > Christoph Hellwig > Jason Gunthorpe > Jens Axboe > Chuck Lever > David Howells > Keith Busch > Bart Van Assche > Damien Le Moal > Martin Petersen > > -ck > > [1] > https://lore.kernel.org/all/169772852492.5232.17148564580779995849.stgit@klimt.1015granger.net > [2] https://lore.kernel.org/linux-iommu/20200708065014.GA5694@lst.de/ > > >