1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
/*
* Vhost-user filesystem virtio device PCI glue
*
* Copyright 2018-2019 Red Hat, Inc.
*
* Authors:
* Dr. David Alan Gilbert <dgilbert@redhat.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or
* (at your option) any later version. See the COPYING file in the
* top-level directory.
*/
#include "qemu/osdep.h"
#include "hw/qdev-properties.h"
#include "hw/virtio/vhost-user-fs.h"
#include "virtio-pci.h"
struct VHostUserFSPCI {
VirtIOPCIProxy parent_obj;
VHostUserFS vdev;
};
typedef struct VHostUserFSPCI VHostUserFSPCI;
#define TYPE_VHOST_USER_FS_PCI "vhost-user-fs-pci-base"
#define VHOST_USER_FS_PCI(obj) \
OBJECT_CHECK(VHostUserFSPCI, (obj), TYPE_VHOST_USER_FS_PCI)
static Property vhost_user_fs_pci_properties[] = {
DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors,
DEV_NVECTORS_UNSPECIFIED),
DEFINE_PROP_END_OF_LIST(),
};
static void vhost_user_fs_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
{
VHostUserFSPCI *dev = VHOST_USER_FS_PCI(vpci_dev);
DeviceState *vdev = DEVICE(&dev->vdev);
if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) {
/* Also reserve config change and hiprio queue vectors */
vpci_dev->nvectors = dev->vdev.conf.num_request_queues + 2;
}
qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
object_property_set_bool(OBJECT(vdev), true, "realized", errp);
}
static void vhost_user_fs_pci_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
k->realize = vhost_user_fs_pci_realize;
set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
dc->props = vhost_user_fs_pci_properties;
pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
pcidev_k->device_id = 0; /* Set by virtio-pci based on virtio id */
pcidev_k->revision = 0x00;
pcidev_k->class_id = PCI_CLASS_STORAGE_OTHER;
}
static void vhost_user_fs_pci_instance_init(Object *obj)
{
VHostUserFSPCI *dev = VHOST_USER_FS_PCI(obj);
virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
TYPE_VHOST_USER_FS);
}
static const VirtioPCIDeviceTypeInfo vhost_user_fs_pci_info = {
.base_name = TYPE_VHOST_USER_FS_PCI,
.non_transitional_name = "vhost-user-fs-pci",
.instance_size = sizeof(VHostUserFSPCI),
.instance_init = vhost_user_fs_pci_instance_init,
.class_init = vhost_user_fs_pci_class_init,
};
static void vhost_user_fs_pci_register(void)
{
virtio_pci_types_register(&vhost_user_fs_pci_info);
}
type_init(vhost_user_fs_pci_register);
|
