From mboxrd@z Thu Jan 1 00:00:00 1970 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 From: Fam Zheng Date: Fri, 11 May 2018 20:08:13 +0800 Message-Id: <20180511120823.7892-1-famz@redhat.com> Subject: [Qemu-devel] [PATCH v4 00/10] qemu-img convert with copy offloading List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Paolo Bonzini , Ronnie Sahlberg , qemu-block@nongnu.org, Peter Lieven , Fam Zheng , Kevin Wolf , Max Reitz , Stefan Hajnoczi , eblake@redhat.com 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(-) -- 2.14.3