From patchwork Fri May 11 12:08:13 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fam Zheng X-Patchwork-Id: 911965 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 40j86B5jN9z9s31 for ; Fri, 11 May 2018 22:09:38 +1000 (AEST) Received: from localhost ([::1]:39816 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fH6rf-0002Ki-75 for incoming@patchwork.ozlabs.org; Fri, 11 May 2018 08:09:35 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:46546) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fH6qs-0002I6-MB for qemu-devel@nongnu.org; Fri, 11 May 2018 08:08:47 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fH6qr-00032J-Tp for qemu-devel@nongnu.org; Fri, 11 May 2018 08:08:46 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:34546 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fH6qn-0002z1-D3; Fri, 11 May 2018 08:08:41 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id B030840252E9; Fri, 11 May 2018 12:08:39 +0000 (UTC) Received: from lemon.usersys.redhat.com (ovpn-12-175.pek2.redhat.com [10.72.12.175]) by smtp.corp.redhat.com (Postfix) with ESMTP id E0C196B5B6; Fri, 11 May 2018 12:08:29 +0000 (UTC) From: Fam Zheng To: qemu-devel@nongnu.org Date: Fri, 11 May 2018 20:08:13 +0800 Message-Id: <20180511120823.7892-1-famz@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.6]); Fri, 11 May 2018 12:08:39 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.6]); Fri, 11 May 2018 12:08:39 +0000 (UTC) for IP:'10.11.54.5' DOMAIN:'int-mx05.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'famz@redhat.com' RCPT:'' X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 66.187.233.73 Subject: [Qemu-devel] [PATCH v4 00/10] qemu-img convert with copy offloading X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Fam Zheng , Stefan Hajnoczi , qemu-block@nongnu.org, Peter Lieven , Max Reitz , Ronnie Sahlberg , Paolo Bonzini Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" v4: - Fix raw offset and size. [Eric] - iscsi: Drop unnecessary return values and variables in favor of constants. [Stefan] - qcow2: Handle small backing case. [Stefan] - file-posix: Translate ENOSYS to ENOTSUP. [Stefan] - API documentation and commit message. [Stefan] - Add rev-by to patches 3, 5 - 10. [Stefan, Eric] This series introduces block layer API for copy offloading and makes use of it in qemu-img convert. For now we implemented the operation in local file protocol with copy_file_range(2). Besides that it's possible to add similar to iscsi, nfs and potentially more. As far as its usage goes, in addition to qemu-img convert, we can emulate offloading in scsi-disk (handle EXTENDED COPY command), and use the API in block jobs too. Fam Zheng (10): block: Introduce API for copy offloading raw: Check byte range uniformly raw: Implement copy offloading qcow2: Implement copy offloading file-posix: Implement bdrv_co_copy_range iscsi: Query and save device designator when opening iscsi: Create and use iscsi_co_wait_for_task iscsi: Implement copy offloading block-backend: Add blk_co_copy_range qemu-img: Convert with copy offloading block/block-backend.c | 18 +++ block/file-posix.c | 96 ++++++++++++- block/io.c | 96 +++++++++++++ block/iscsi.c | 314 ++++++++++++++++++++++++++++++++++++----- block/qcow2.c | 232 ++++++++++++++++++++++++++---- block/raw-format.c | 95 +++++++++---- include/block/block.h | 32 +++++ include/block/block_int.h | 38 +++++ include/block/raw-aio.h | 10 +- include/scsi/constants.h | 5 + include/sysemu/block-backend.h | 4 + qemu-img.c | 50 ++++++- 12 files changed, 891 insertions(+), 99 deletions(-)