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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" | |
18 | ||
19 | struct VHostUserFSPCI { | |
20 | VirtIOPCIProxy parent_obj; | |
21 | VHostUserFS vdev; | |
22 | }; | |
23 | ||
24 | typedef struct VHostUserFSPCI VHostUserFSPCI; | |
25 | ||
26 | #define TYPE_VHOST_USER_FS_PCI "vhost-user-fs-pci-base" | |
27 | ||
28 | #define VHOST_USER_FS_PCI(obj) \ | |
29 | OBJECT_CHECK(VHostUserFSPCI, (obj), TYPE_VHOST_USER_FS_PCI) | |
30 | ||
31 | static Property vhost_user_fs_pci_properties[] = { | |
32 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, | |
33 | DEV_NVECTORS_UNSPECIFIED), | |
34 | DEFINE_PROP_END_OF_LIST(), | |
35 | }; | |
36 | ||
37 | static void vhost_user_fs_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) | |
38 | { | |
39 | VHostUserFSPCI *dev = VHOST_USER_FS_PCI(vpci_dev); | |
40 | DeviceState *vdev = DEVICE(&dev->vdev); | |
41 | ||
42 | if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) { | |
366844f3 SH |
43 | /* Also reserve config change and hiprio queue vectors */ |
44 | vpci_dev->nvectors = dev->vdev.conf.num_request_queues + 2; | |
9d59bed1 DDAG |
45 | } |
46 | ||
99ba777e | 47 | qdev_realize(vdev, BUS(&vpci_dev->bus), errp); |
9d59bed1 DDAG |
48 | } |
49 | ||
50 | static void vhost_user_fs_pci_class_init(ObjectClass *klass, void *data) | |
51 | { | |
52 | DeviceClass *dc = DEVICE_CLASS(klass); | |
53 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | |
54 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
55 | k->realize = vhost_user_fs_pci_realize; | |
56 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); | |
4f67d30b | 57 | device_class_set_props(dc, vhost_user_fs_pci_properties); |
9d59bed1 DDAG |
58 | pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; |
59 | pcidev_k->device_id = 0; /* Set by virtio-pci based on virtio id */ | |
60 | pcidev_k->revision = 0x00; | |
61 | pcidev_k->class_id = PCI_CLASS_STORAGE_OTHER; | |
62 | } | |
63 | ||
64 | static void vhost_user_fs_pci_instance_init(Object *obj) | |
65 | { | |
66 | VHostUserFSPCI *dev = VHOST_USER_FS_PCI(obj); | |
67 | ||
68 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
69 | TYPE_VHOST_USER_FS); | |
70 | } | |
71 | ||
72 | static const VirtioPCIDeviceTypeInfo vhost_user_fs_pci_info = { | |
73 | .base_name = TYPE_VHOST_USER_FS_PCI, | |
74 | .non_transitional_name = "vhost-user-fs-pci", | |
75 | .instance_size = sizeof(VHostUserFSPCI), | |
76 | .instance_init = vhost_user_fs_pci_instance_init, | |
77 | .class_init = vhost_user_fs_pci_class_init, | |
78 | }; | |
79 | ||
80 | static void vhost_user_fs_pci_register(void) | |
81 | { | |
82 | virtio_pci_types_register(&vhost_user_fs_pci_info); | |
83 | } | |
84 | ||
85 | type_init(vhost_user_fs_pci_register); |