From patchwork Wed Jan 5 00:58:50 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Zhijian Li (Fujitsu)\" via" X-Patchwork-Id: 12703934 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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D7FE4C433F5 for ; Wed, 5 Jan 2022 01:01:16 +0000 (UTC) Received: from localhost ([::1]:54422 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1n4ufz-0002CU-9W for qemu-devel@archiver.kernel.org; Tue, 04 Jan 2022 20:01:15 -0500 Received: from eggs.gnu.org ([209.51.188.92]:36604) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n4ue2-0007rP-9X for qemu-devel@nongnu.org; Tue, 04 Jan 2022 19:59:14 -0500 Received: from szxga03-in.huawei.com ([45.249.212.189]:4172) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n4udz-0007uw-Om for qemu-devel@nongnu.org; Tue, 04 Jan 2022 19:59:13 -0500 Received: from dggpeml500020.china.huawei.com (unknown [172.30.72.55]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4JT9zK5dxPz8wFt; Wed, 5 Jan 2022 08:56:29 +0800 (CST) Received: from dggpeml100016.china.huawei.com (7.185.36.216) by dggpeml500020.china.huawei.com (7.185.36.88) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.20; Wed, 5 Jan 2022 08:59:04 +0800 Received: from DESKTOP-27KDQMV.china.huawei.com (10.174.148.223) by dggpeml100016.china.huawei.com (7.185.36.216) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.20; Wed, 5 Jan 2022 08:59:03 +0800 To: , , , CC: , , , , , , Longpeng Subject: [RFC 00/10] add generic vDPA device support Date: Wed, 5 Jan 2022 08:58:50 +0800 Message-ID: <20220105005900.860-1-longpeng2@huawei.com> X-Mailer: git-send-email 2.25.0.windows.1 MIME-Version: 1.0 X-Originating-IP: [10.174.148.223] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To dggpeml100016.china.huawei.com (7.185.36.216) X-CFilter-Loop: Reflected Received-SPF: pass client-ip=45.249.212.189; envelope-from=longpeng2@huawei.com; helo=szxga03-in.huawei.com X-Spam_score_int: -22 X-Spam_score: -2.3 X-Spam_bar: -- X-Spam_report: (-2.3 / 5.0 requ) RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Reply-to: "Longpeng(Mike)" X-Patchwork-Original-From: "Longpeng(Mike)" via From: "Zhijian Li (Fujitsu)\" via" From: Longpeng Hi guys, This patchset tries to support the generic vDPA device, the previous disscussion can be found here [1]. With the generic vDPA device, QEMU won't need to touch the device types any more, such like vfio. We can use the generic vDPA device as follow: -device vhost-vdpa-device-pci,vdpa-dev=/dev/vhost-vdpa-X I've done some simple tests on Huawei's offloading card (net, 0.95) and vdpa_sim_blk (1.0); Note: the kernel part does not send out yet, I'll send it as soon as possible. [1] https://lore.kernel.org/all/20211208052010.1719-1-longpeng2@huawei.com/ Longpeng (Mike) (10): virtio: get class_id and pci device id by the virtio id vhost: add 3 commands for vhost-vdpa vdpa: add the infrastructure of vdpa-dev vdpa-dev: implement the instance_init/class_init interface vdpa-dev: implement the realize interface vdpa-dev: implement the unrealize interface vdpa-dev: implement the get_config/set_config interface vdpa-dev: implement the get_features interface vdpa-dev: implement the set_status interface vdpa-dev: mark the device as unmigratable hw/virtio/Kconfig | 5 + hw/virtio/meson.build | 2 + hw/virtio/vdpa-dev-pci.c | 127 +++++++++++++ hw/virtio/vdpa-dev.c | 355 +++++++++++++++++++++++++++++++++++ hw/virtio/virtio-pci.c | 93 +++++++++ hw/virtio/virtio-pci.h | 4 + include/hw/virtio/vdpa-dev.h | 26 +++ linux-headers/linux/vhost.h | 10 + 8 files changed, 622 insertions(+) create mode 100644 hw/virtio/vdpa-dev-pci.c create mode 100644 hw/virtio/vdpa-dev.c create mode 100644 include/hw/virtio/vdpa-dev.h