qdev: Convert uses of qdev_set_parent_bus() with Coccinelle
[qemu.git] / hw / virtio / vhost-user-blk-pci.c
1 /*
2 * Vhost user blk PCI Bindings
3 *
4 * Copyright(C) 2017 Intel Corporation.
5 *
6 * Authors:
7 * Changpeng Liu <changpeng.liu@intel.com>
8 *
9 * Largely based on the "vhost-user-scsi.c" and "vhost-scsi.c" implemented by:
10 * Felipe Franciosi <felipe@nutanix.com>
11 * Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
12 * Nicholas Bellinger <nab@risingtidesystems.com>
13 *
14 * This work is licensed under the terms of the GNU LGPL, version 2 or later.
15 * See the COPYING.LIB file in the top-level directory.
16 *
17 */
18
19 #include "qemu/osdep.h"
20
21 #include "standard-headers/linux/virtio_pci.h"
22 #include "hw/virtio/virtio.h"
23 #include "hw/virtio/vhost-user-blk.h"
24 #include "hw/pci/pci.h"
25 #include "hw/qdev-properties.h"
26 #include "qapi/error.h"
27 #include "qemu/error-report.h"
28 #include "qemu/module.h"
29 #include "virtio-pci.h"
30
31 typedef struct VHostUserBlkPCI VHostUserBlkPCI;
32
33 /*
34 * vhost-user-blk-pci: This extends VirtioPCIProxy.
35 */
36 #define TYPE_VHOST_USER_BLK_PCI "vhost-user-blk-pci-base"
37 #define VHOST_USER_BLK_PCI(obj) \
38 OBJECT_CHECK(VHostUserBlkPCI, (obj), TYPE_VHOST_USER_BLK_PCI)
39
40 struct VHostUserBlkPCI {
41 VirtIOPCIProxy parent_obj;
42 VHostUserBlk vdev;
43 };
44
45 static Property vhost_user_blk_pci_properties[] = {
46 DEFINE_PROP_UINT32("class", VirtIOPCIProxy, class_code, 0),
47 DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors,
48 DEV_NVECTORS_UNSPECIFIED),
49 DEFINE_PROP_END_OF_LIST(),
50 };
51
52 static void vhost_user_blk_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
53 {
54 VHostUserBlkPCI *dev = VHOST_USER_BLK_PCI(vpci_dev);
55 DeviceState *vdev = DEVICE(&dev->vdev);
56
57 if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) {
58 vpci_dev->nvectors = dev->vdev.num_queues + 1;
59 }
60
61 qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
62 }
63
64 static void vhost_user_blk_pci_class_init(ObjectClass *klass, void *data)
65 {
66 DeviceClass *dc = DEVICE_CLASS(klass);
67 VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
68 PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
69
70 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
71 device_class_set_props(dc, vhost_user_blk_pci_properties);
72 k->realize = vhost_user_blk_pci_realize;
73 pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
74 pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_BLOCK;
75 pcidev_k->revision = VIRTIO_PCI_ABI_VERSION;
76 pcidev_k->class_id = PCI_CLASS_STORAGE_SCSI;
77 }
78
79 static void vhost_user_blk_pci_instance_init(Object *obj)
80 {
81 VHostUserBlkPCI *dev = VHOST_USER_BLK_PCI(obj);
82
83 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
84 TYPE_VHOST_USER_BLK);
85 object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
86 "bootindex");
87 }
88
89 static const VirtioPCIDeviceTypeInfo vhost_user_blk_pci_info = {
90 .base_name = TYPE_VHOST_USER_BLK_PCI,
91 .generic_name = "vhost-user-blk-pci",
92 .transitional_name = "vhost-user-blk-pci-transitional",
93 .non_transitional_name = "vhost-user-blk-pci-non-transitional",
94 .instance_size = sizeof(VHostUserBlkPCI),
95 .instance_init = vhost_user_blk_pci_instance_init,
96 .class_init = vhost_user_blk_pci_class_init,
97 };
98
99 static void vhost_user_blk_pci_register(void)
100 {
101 virtio_pci_types_register(&vhost_user_blk_pci_info);
102 }
103
104 type_init(vhost_user_blk_pci_register)