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 X-Spam-Level: X-Spam-Status: No, score=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 92F19C63697 for ; Mon, 23 Nov 2020 18:02:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4CC89206B2 for ; Mon, 23 Nov 2020 18:02:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=ziepe.ca header.i=@ziepe.ca header.b="BkTjg7eO" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390695AbgKWSCB (ORCPT ); Mon, 23 Nov 2020 13:02:01 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50768 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731340AbgKWSCB (ORCPT ); Mon, 23 Nov 2020 13:02:01 -0500 Received: from mail-qk1-x741.google.com (mail-qk1-x741.google.com [IPv6:2607:f8b0:4864:20::741]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E3FD7C0613CF for ; Mon, 23 Nov 2020 10:02:00 -0800 (PST) Received: by mail-qk1-x741.google.com with SMTP id u184so3226497qkf.3 for ; Mon, 23 Nov 2020 10:02:00 -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=7+lSYUi+lYvreoUQbQeklZ4cRIMv/oTw7seJhFROrZ8=; b=BkTjg7eOzOEGq3pVj6UyISuMoQUhg8+ZOG9QgsbJuwsFycaebbXZuf2rCN5PP26DXc OA7g8KmqVRR4PhjlGutP9XIraLdFgBeN0aoWfEAljXN2JwKB3KTemdHEj5Ak96V3glx1 Od5jJq6tFeSDLRAtXYCaV+dOe2dcqJlIGt+Xs/U7VRTvh3rlam50pfW14c/UJsygTNBt eH0r17lmgdxTAG/gAfI0mW4YSW4eHN0/ULr2NF2fkiONvzfz5ueiM/P/Mb6YRupGp/4q Wm9pqHt2bVUjbhYZaEv/Lbt+ZmvByolqs+yCIc+iOol8C3P0ilCBIsXWnLgeyJU9i9V7 X+pA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=7+lSYUi+lYvreoUQbQeklZ4cRIMv/oTw7seJhFROrZ8=; b=DzvMzzi+uFU0xi01BqyoJEdwGAY7Oi4IBbiiVj1nLgpBHrVyxps2R8PNI1c3Y00EFZ 8Ni4FlCTAIA3qrTDZ//m8dl1T9KfrxbWulwZFW7wLo295/vxf1Mvji0n+eHqKI/OSy71 1A1kDE1qnpxx5/Qn18dc5QiMwfXgLxJTIF/fVU6twAC3m0IvMPpU2okLEHxsFhYVXTtE HlXAV4YaHKyi38qZzzrSrUlDyuV5EbiFDBph4AmgdwQpBWDRlZR7DyRIxXh3N7h3W1ZK lM+as2kJGyX6v8fYQ9BtKvfovaHrbioYhGh8a//lEc1fxhm4MH/EoPDiTraX8ud9Rwyp V65A== X-Gm-Message-State: AOAM532mHHoJwDasvgRJfUg0spA8LNknxXVJVMk9jCMrVJUWIlc8Pcwx eyqo94AgSX9MzVF/l96ug3eUAg== X-Google-Smtp-Source: ABdhPJwFkRrCXup4ypaFSlMFJADjuBv1Ideil3Uminq6+V0Q/qol9nWL7qaeLeNPSR4LzpVE5Yiexg== X-Received: by 2002:a37:64d4:: with SMTP id y203mr693429qkb.150.1606154520246; Mon, 23 Nov 2020 10:02:00 -0800 (PST) Received: from ziepe.ca (hlfxns017vw-156-34-48-30.dhcp-dynamic.fibreop.ns.bellaliant.net. [156.34.48.30]) by smtp.gmail.com with ESMTPSA id b33sm9695443qta.62.2020.11.23.10.01.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 23 Nov 2020 10:01:59 -0800 (PST) Received: from jgg by mlx with local (Exim 4.94) (envelope-from ) id 1khGA2-00AETC-SE; Mon, 23 Nov 2020 14:01:58 -0400 Date: Mon, 23 Nov 2020 14:01:58 -0400 From: Jason Gunthorpe To: Jianxin Xiong Cc: linux-rdma@vger.kernel.org, dri-devel@lists.freedesktop.org, Doug Ledford , Leon Romanovsky , Sumit Semwal , Christian Koenig , Daniel Vetter Subject: Re: [PATCH rdma-core 2/5] mlx5: Support dma-buf based memory region Message-ID: <20201123180158.GZ244516@ziepe.ca> References: <1606153984-104583-1-git-send-email-jianxin.xiong@intel.com> <1606153984-104583-3-git-send-email-jianxin.xiong@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1606153984-104583-3-git-send-email-jianxin.xiong@intel.com> Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org On Mon, Nov 23, 2020 at 09:53:01AM -0800, Jianxin Xiong wrote: > +struct ibv_mr *mlx5_reg_dmabuf_mr(struct ibv_pd *pd, uint64_t offset, size_t length, > + uint64_t iova, int fd, int acc) > +{ > + struct mlx5_mr *mr; > + int ret; > + enum ibv_access_flags access = (enum ibv_access_flags)acc; Why? Jason