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1 | /* |
2 | * Vhost-user filesystem virtio device PCI glue | |
3 | * | |
4 | * Copyright 2018-2019 Red Hat, Inc. | |
5 | * | |
6 | * Authors: | |
7 | * Dr. David Alan Gilbert <dgilbert@redhat.com> | |
8 | * | |
9 | * This work is licensed under the terms of the GNU GPL, version 2 or | |
10 | * (at your option) any later version. See the COPYING file in the | |
11 | * top-level directory. | |
12 | */ | |
13 | ||
14 | #include "qemu/osdep.h" | |
15 | #include "hw/qdev-properties.h" | |
16 | #include "hw/virtio/vhost-user-fs.h" | |
17 | #include "virtio-pci.h" | |
db1015e9 | 18 | #include "qom/object.h" |
9d59bed1 DDAG |
19 | |
20 | struct VHostUserFSPCI { | |
21 | VirtIOPCIProxy parent_obj; | |
22 | VHostUserFS vdev; | |
23 | }; | |
24 | ||
25 | typedef struct VHostUserFSPCI VHostUserFSPCI; | |
26 | ||
27 | #define TYPE_VHOST_USER_FS_PCI "vhost-user-fs-pci-base" | |
28 | ||
8110fa1d EH |
29 | DECLARE_INSTANCE_CHECKER(VHostUserFSPCI, VHOST_USER_FS_PCI, |
30 | TYPE_VHOST_USER_FS_PCI) | |
9d59bed1 DDAG |
31 | |
32 | static Property vhost_user_fs_pci_properties[] = { | |
33 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, | |
34 | DEV_NVECTORS_UNSPECIFIED), | |
35 | DEFINE_PROP_END_OF_LIST(), | |
36 | }; | |
37 | ||
38 | static void vhost_user_fs_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) | |
39 | { | |
40 | VHostUserFSPCI *dev = VHOST_USER_FS_PCI(vpci_dev); | |
41 | DeviceState *vdev = DEVICE(&dev->vdev); | |
42 | ||
43 | if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) { | |
366844f3 SH |
44 | /* Also reserve config change and hiprio queue vectors */ |
45 | vpci_dev->nvectors = dev->vdev.conf.num_request_queues + 2; | |
9d59bed1 DDAG |
46 | } |
47 | ||
99ba777e | 48 | qdev_realize(vdev, BUS(&vpci_dev->bus), errp); |
9d59bed1 DDAG |
49 | } |
50 | ||
51 | static void vhost_user_fs_pci_class_init(ObjectClass *klass, void *data) | |
52 | { | |
53 | DeviceClass *dc = DEVICE_CLASS(klass); | |
54 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | |
55 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
56 | k->realize = vhost_user_fs_pci_realize; | |
57 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); | |
4f67d30b | 58 | device_class_set_props(dc, vhost_user_fs_pci_properties); |
9d59bed1 DDAG |
59 | pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; |
60 | pcidev_k->device_id = 0; /* Set by virtio-pci based on virtio id */ | |
61 | pcidev_k->revision = 0x00; | |
62 | pcidev_k->class_id = PCI_CLASS_STORAGE_OTHER; | |
63 | } | |
64 | ||
65 | static void vhost_user_fs_pci_instance_init(Object *obj) | |
66 | { | |
67 | VHostUserFSPCI *dev = VHOST_USER_FS_PCI(obj); | |
68 | ||
69 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
70 | TYPE_VHOST_USER_FS); | |
71 | } | |
72 | ||
73 | static const VirtioPCIDeviceTypeInfo vhost_user_fs_pci_info = { | |
74 | .base_name = TYPE_VHOST_USER_FS_PCI, | |
75 | .non_transitional_name = "vhost-user-fs-pci", | |
76 | .instance_size = sizeof(VHostUserFSPCI), | |
77 | .instance_init = vhost_user_fs_pci_instance_init, | |
78 | .class_init = vhost_user_fs_pci_class_init, | |
79 | }; | |
80 | ||
81 | static void vhost_user_fs_pci_register(void) | |
82 | { | |
83 | virtio_pci_types_register(&vhost_user_fs_pci_info); | |
84 | } | |
85 | ||
86 | type_init(vhost_user_fs_pci_register); |