From patchwork Sat Mar 19 07:20:05 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Denis V. Lunev\" via" X-Patchwork-Id: 12786113 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 38DE7C4332F for ; Sat, 19 Mar 2022 07:22:12 +0000 (UTC) Received: from localhost ([::1]:52838 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nVTPf-00053u-3i for qemu-devel@archiver.kernel.org; Sat, 19 Mar 2022 03:22:11 -0400 Received: from eggs.gnu.org ([209.51.188.92]:45192) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nVTO5-0002FG-Cf for qemu-devel@nongnu.org; Sat, 19 Mar 2022 03:20:33 -0400 Received: from szxga08-in.huawei.com ([45.249.212.255]:3858) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nVTO2-0005E6-4X for qemu-devel@nongnu.org; Sat, 19 Mar 2022 03:20:32 -0400 Received: from dggpeml500022.china.huawei.com (unknown [172.30.72.53]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4KLC2S2lZcz13VdT; Sat, 19 Mar 2022 15:20:16 +0800 (CST) Received: from dggpeml100016.china.huawei.com (7.185.36.216) by dggpeml500022.china.huawei.com (7.185.36.66) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Sat, 19 Mar 2022 15:20:19 +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 15.1.2308.21; Sat, 19 Mar 2022 15:20:18 +0800 To: , , , CC: , , , , , Longpeng Subject: [PATCH v3 03/10] vdpa: add the infrastructure of vdpa-dev Date: Sat, 19 Mar 2022 15:20:05 +0800 Message-ID: <20220319072012.525-4-longpeng2@huawei.com> X-Mailer: git-send-email 2.25.0.windows.1 In-Reply-To: <20220319072012.525-1-longpeng2@huawei.com> References: <20220319072012.525-1-longpeng2@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.174.148.223] X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To dggpeml100016.china.huawei.com (7.185.36.216) X-CFilter-Loop: Reflected Received-SPF: pass client-ip=45.249.212.255; envelope-from=longpeng2@huawei.com; helo=szxga08-in.huawei.com X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham 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: "Denis V. Lunev\" via" From: Longpeng Add the infrastructure of vdpa-dev (the generic vDPA device), we can add a generic vDPA device as follow: -device vhost-vdpa-device-pci,vdpa-dev=/dev/vhost-vdpa-X Signed-off-by: Longpeng --- hw/virtio/Kconfig | 5 +++ hw/virtio/meson.build | 2 ++ hw/virtio/vdpa-dev-pci.c | 65 ++++++++++++++++++++++++++++++++++++ hw/virtio/vdpa-dev.c | 55 ++++++++++++++++++++++++++++++ include/hw/virtio/vdpa-dev.h | 30 +++++++++++++++++ 5 files changed, 157 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 diff --git a/hw/virtio/Kconfig b/hw/virtio/Kconfig index c144d42f9b..2723283382 100644 --- a/hw/virtio/Kconfig +++ b/hw/virtio/Kconfig @@ -68,3 +68,8 @@ config VHOST_USER_RNG bool default y depends on VIRTIO && VHOST_USER + +config VHOST_VDPA_DEV + bool + default y if VIRTIO_PCI + depends on VIRTIO && VHOST_VDPA && LINUX diff --git a/hw/virtio/meson.build b/hw/virtio/meson.build index 521f7d64a8..8e8943e20b 100644 --- a/hw/virtio/meson.build +++ b/hw/virtio/meson.build @@ -29,6 +29,7 @@ virtio_ss.add(when: 'CONFIG_VHOST_USER_I2C', if_true: files('vhost-user-i2c.c')) virtio_ss.add(when: ['CONFIG_VIRTIO_PCI', 'CONFIG_VHOST_USER_I2C'], if_true: files('vhost-user-i2c-pci.c')) virtio_ss.add(when: 'CONFIG_VHOST_USER_RNG', if_true: files('vhost-user-rng.c')) virtio_ss.add(when: ['CONFIG_VHOST_USER_RNG', 'CONFIG_VIRTIO_PCI'], if_true: files('vhost-user-rng-pci.c')) +virtio_ss.add(when: 'CONFIG_VHOST_VDPA_DEV', if_true: files('vdpa-dev.c')) virtio_pci_ss = ss.source_set() virtio_pci_ss.add(when: 'CONFIG_VHOST_VSOCK', if_true: files('vhost-vsock-pci.c')) @@ -49,6 +50,7 @@ virtio_pci_ss.add(when: 'CONFIG_VIRTIO_SERIAL', if_true: files('virtio-serial-pc virtio_pci_ss.add(when: 'CONFIG_VIRTIO_PMEM', if_true: files('virtio-pmem-pci.c')) virtio_pci_ss.add(when: 'CONFIG_VIRTIO_IOMMU', if_true: files('virtio-iommu-pci.c')) virtio_pci_ss.add(when: 'CONFIG_VIRTIO_MEM', if_true: files('virtio-mem-pci.c')) +virtio_pci_ss.add(when: 'CONFIG_VHOST_VDPA_DEV', if_true: files('vdpa-dev-pci.c')) virtio_ss.add_all(when: 'CONFIG_VIRTIO_PCI', if_true: virtio_pci_ss) diff --git a/hw/virtio/vdpa-dev-pci.c b/hw/virtio/vdpa-dev-pci.c new file mode 100644 index 0000000000..9c0f25a02d --- /dev/null +++ b/hw/virtio/vdpa-dev-pci.c @@ -0,0 +1,65 @@ +/* + * Vhost Vdpa Device PCI Bindings + * + * Copyright (c) Huawei Technologies Co., Ltd. 2022. All Rights Reserved. + * + * Authors: + * Longpeng + * + * Largely based on the "vhost-user-blk-pci.c" and "vhost-user-blk.c" implemented by: + * Changpeng Liu + * + * This work is licensed under the terms of the GNU LGPL, version 2 or later. + * See the COPYING.LIB file in the top-level directory. + */ +#include "qemu/osdep.h" +#include +#include +#include "hw/virtio/virtio.h" +#include "hw/virtio/vdpa-dev.h" +#include "hw/pci/pci.h" +#include "hw/qdev-properties.h" +#include "qapi/error.h" +#include "qemu/error-report.h" +#include "qemu/module.h" +#include "virtio-pci.h" +#include "qom/object.h" + + +typedef struct VhostVdpaDevicePCI VhostVdpaDevicePCI; + +#define TYPE_VHOST_VDPA_DEVICE_PCI "vhost-vdpa-device-pci-base" +DECLARE_INSTANCE_CHECKER(VhostVdpaDevicePCI, VHOST_VDPA_DEVICE_PCI, + TYPE_VHOST_VDPA_DEVICE_PCI) + +struct VhostVdpaDevicePCI { + VirtIOPCIProxy parent_obj; + VhostVdpaDevice vdev; +}; + +static void vhost_vdpa_device_pci_instance_init(Object *obj) +{ + return; +} + +static void vhost_vdpa_device_pci_class_init(ObjectClass *klass, void *data) +{ + return; +} + +static const VirtioPCIDeviceTypeInfo vhost_vdpa_device_pci_info = { + .base_name = TYPE_VHOST_VDPA_DEVICE_PCI, + .generic_name = "vhost-vdpa-device-pci", + .transitional_name = "vhost-vdpa-device-pci-transitional", + .non_transitional_name = "vhost-vdpa-device-pci-non-transitional", + .instance_size = sizeof(VhostVdpaDevicePCI), + .instance_init = vhost_vdpa_device_pci_instance_init, + .class_init = vhost_vdpa_device_pci_class_init, +}; + +static void vhost_vdpa_device_pci_register(void) +{ + virtio_pci_types_register(&vhost_vdpa_device_pci_info); +} + +type_init(vhost_vdpa_device_pci_register); diff --git a/hw/virtio/vdpa-dev.c b/hw/virtio/vdpa-dev.c new file mode 100644 index 0000000000..5c506ff304 --- /dev/null +++ b/hw/virtio/vdpa-dev.c @@ -0,0 +1,55 @@ +/* + * Vhost Vdpa Device + * + * Copyright (c) Huawei Technologies Co., Ltd. 2022. All Rights Reserved. + * + * Authors: + * Longpeng + * + * Largely based on the "vhost-user-blk-pci.c" and "vhost-user-blk.c" implemented by: + * Changpeng Liu + * + * This work is licensed under the terms of the GNU LGPL, version 2 or later. + * See the COPYING.LIB file in the top-level directory. + */ +#include "qemu/osdep.h" +#include +#include +#include "qapi/error.h" +#include "qemu/error-report.h" +#include "qemu/cutils.h" +#include "hw/qdev-core.h" +#include "hw/qdev-properties.h" +#include "hw/qdev-properties-system.h" +#include "hw/virtio/vhost.h" +#include "hw/virtio/virtio.h" +#include "hw/virtio/virtio-bus.h" +#include "hw/virtio/virtio-access.h" +#include "hw/virtio/vdpa-dev.h" +#include "sysemu/sysemu.h" +#include "sysemu/runstate.h" + +static void vhost_vdpa_device_class_init(ObjectClass *klass, void *data) +{ + return; +} + +static void vhost_vdpa_device_instance_init(Object *obj) +{ + return; +} + +static const TypeInfo vhost_vdpa_device_info = { + .name = TYPE_VHOST_VDPA_DEVICE, + .parent = TYPE_VIRTIO_DEVICE, + .instance_size = sizeof(VhostVdpaDevice), + .class_init = vhost_vdpa_device_class_init, + .instance_init = vhost_vdpa_device_instance_init, +}; + +static void register_vhost_vdpa_device_type(void) +{ + type_register_static(&vhost_vdpa_device_info); +} + +type_init(register_vhost_vdpa_device_type); diff --git a/include/hw/virtio/vdpa-dev.h b/include/hw/virtio/vdpa-dev.h new file mode 100644 index 0000000000..bd60367793 --- /dev/null +++ b/include/hw/virtio/vdpa-dev.h @@ -0,0 +1,30 @@ +/* + * Vhost Vdpa Device + * + * Copyright (c) Huawei Technologies Co., Ltd. 2022. All Rights Reserved. + * + * Authors: + * Longpeng + * + * Largely based on the "vhost-user-blk.h" implemented by: + * Changpeng Liu + * + * This work is licensed under the terms of the GNU LGPL, version 2 or later. + * See the COPYING.LIB file in the top-level directory. + */ +#ifndef _VHOST_VDPA_DEVICE_H +#define _VHOST_VDPA_DEVICE_H + +#include "hw/virtio/vhost.h" +#include "hw/virtio/vhost-vdpa.h" +#include "qom/object.h" + + +#define TYPE_VHOST_VDPA_DEVICE "vhost-vdpa-device" +OBJECT_DECLARE_SIMPLE_TYPE(VhostVdpaDevice, VHOST_VDPA_DEVICE) + +struct VhostVdpaDevice { + VirtIODevice parent_obj; +}; + +#endif