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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5F84BC4332F for ; Tue, 7 Dec 2021 17:14:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239858AbhLGRSZ (ORCPT ); Tue, 7 Dec 2021 12:18:25 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57020 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234054AbhLGRSY (ORCPT ); Tue, 7 Dec 2021 12:18:24 -0500 Received: from mail-qv1-xf30.google.com (mail-qv1-xf30.google.com [IPv6:2607:f8b0:4864:20::f30]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DF6E5C061748 for ; Tue, 7 Dec 2021 09:14:53 -0800 (PST) Received: by mail-qv1-xf30.google.com with SMTP id jo22so13687092qvb.13 for ; Tue, 07 Dec 2021 09:14:53 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ziepe.ca; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=wVc8LSPwSI3Fgta6L7kEkmdc/aDqjUxriE82WBGtIW0=; b=Rfja9PD8xnDksY1HYbcjkWT4ttEpzcj1mkWQRYEdiFZjxlZutjCEU3l+TzKeZAWZA/ R3Hgi5Or/0X0d8myLQpzwZQAnhxm/OcfYbG+5B/66ZNNo8nbFHqD9DYlNSXtBgkDujdj GS0HSG3F4O5HKNUn9sTmGvZtZoUDvBg3FelKkCyTF22wHUt+fuZxsll/djq0gwdp9UES rKe7Ww/zz2n88os5/TA3xAj0fxq+mkd+U3+5eLTUO9k3l8BCEoBS1Bzv7RwiFY3K03FM XvX2OC7NgTOQWukgIns3VlWwdovpkxoyJF0F7548j2+41xs1nJaH080SGXg30oO09e0f Lkgg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=wVc8LSPwSI3Fgta6L7kEkmdc/aDqjUxriE82WBGtIW0=; b=1rkChBJKh2hotnUQ6i3INI9xZNkcTL6BvSxzZGiQ0WBNZwnOSJUH2CJbAuXI5nM9SZ M2LM1TuVZAoKMf8rnDsQTvyxkK83p+mhpk/Nxy6WEl6nKYK62UtwNKK8bAVV678xO6a4 xx2WCueRFtUQjf6XOsJW6TWB7sdbS6vw0lwYceNoAwGBmr3H7XAGD01Oaoa8mvxaufvf /2S9fEMAdVL2L8+fsUyNUXVpfxqSXnULAiNKXdkXjkCCC2o2Qv0on6Y5aZiB8MswepPM Xd1hhVFRyWnHMdV1QWkw4nYAgcMMbfwz4E23Gx7Oq0e/RrNSeFJhUjVOlujz59LYiXle zYpA== X-Gm-Message-State: AOAM530MuUQ5WPPEZAjIs6CpDdBfGVTnytWm192bndozMgUqL/fB+/LT nx4y6XtHIELtDhBG3xmWYBbOjg== X-Google-Smtp-Source: ABdhPJw0PP90ueBnYWFUDjF76i2hMme/rVXQvmtZfOsQkyWewKl1qaIvxAAjfaYW0kFwWOh6hBhAtQ== X-Received: by 2002:a05:6214:e65:: with SMTP id jz5mr300169qvb.103.1638897293016; Tue, 07 Dec 2021 09:14:53 -0800 (PST) Received: from ziepe.ca (hlfxns017vw-142-162-113-129.dhcp-dynamic.fibreop.ns.bellaliant.net. [142.162.113.129]) by smtp.gmail.com with ESMTPSA id n13sm138629qkp.19.2021.12.07.09.14.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Dec 2021 09:14:50 -0800 (PST) Received: from jgg by mlx with local (Exim 4.94) (envelope-from ) id 1mue3D-0005cs-LC; Tue, 07 Dec 2021 13:14:47 -0400 Date: Tue, 7 Dec 2021 13:14:47 -0400 From: Jason Gunthorpe To: Shunsuke Mie Cc: Zhu Yanjun , Christian =?utf-8?B?S8O2bmln?= , Alex Deucher , Daniel Vetter , Doug Ledford , Jianxin Xiong , Leon Romanovsky , Maor Gottlieb , Sean Hefty , Sumit Semwal , dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, linux-media@vger.kernel.org, Linux Kernel Mailing List , linux-rdma , Damian Hobson-Garcia , Takanari Hayama , Tomohito Esaki Subject: Re: [RFC PATCH v4 0/2] RDMA/rxe: Add dma-buf support Message-ID: <20211207171447.GA6467@ziepe.ca> References: <20211122110817.33319-1-mie@igel.co.jp> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Dec 03, 2021 at 12:51:44PM +0900, Shunsuke Mie wrote: > Hi maintainers, > > Could you please review this patch series? Why is it RFC? I'm confused why this is useful? This can't do copy from MMIO memory, so it shouldn't be compatible with things like Gaudi - does something prevent this? Jason