1 | /* |
2 | * virtio ccw scsi implementation |
3 | * |
4 | * Copyright 2012, 2015 IBM Corp. |
5 | * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com> |
6 | * |
7 | * This work is licensed under the terms of the GNU GPL, version 2 or (at |
8 | * your option) any later version. See the COPYING file in the top-level |
9 | * directory. |
10 | */ |
11 | |
12 | #include "qemu/osdep.h" |
13 | #include "hw/qdev-properties.h" |
14 | #include "hw/virtio/virtio.h" |
15 | #include "qapi/error.h" |
16 | #include "qemu/module.h" |
17 | #include "virtio-ccw.h" |
18 | |
19 | static void virtio_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
20 | { |
21 | VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(ccw_dev); |
22 | DeviceState *vdev = DEVICE(&dev->vdev); |
23 | DeviceState *qdev = DEVICE(ccw_dev); |
24 | char *bus_name; |
25 | |
26 | /* |
27 | * For command line compatibility, this sets the virtio-scsi-device bus |
28 | * name as before. |
29 | */ |
30 | if (qdev->id) { |
31 | bus_name = g_strdup_printf("%s.0" , qdev->id); |
32 | virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name); |
33 | g_free(bus_name); |
34 | } |
35 | |
36 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); |
37 | object_property_set_bool(OBJECT(vdev), true, "realized" , errp); |
38 | } |
39 | |
40 | static void virtio_ccw_scsi_instance_init(Object *obj) |
41 | { |
42 | VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(obj); |
43 | |
44 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), |
45 | TYPE_VIRTIO_SCSI); |
46 | } |
47 | |
48 | static Property virtio_ccw_scsi_properties[] = { |
49 | DEFINE_PROP_BIT("ioeventfd" , VirtioCcwDevice, flags, |
50 | VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), |
51 | DEFINE_PROP_UINT32("max_revision" , VirtioCcwDevice, max_rev, |
52 | VIRTIO_CCW_MAX_REV), |
53 | DEFINE_PROP_END_OF_LIST(), |
54 | }; |
55 | |
56 | static void virtio_ccw_scsi_class_init(ObjectClass *klass, void *data) |
57 | { |
58 | DeviceClass *dc = DEVICE_CLASS(klass); |
59 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); |
60 | |
61 | k->realize = virtio_ccw_scsi_realize; |
62 | dc->props = virtio_ccw_scsi_properties; |
63 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
64 | } |
65 | |
66 | static const TypeInfo virtio_ccw_scsi = { |
67 | .name = TYPE_VIRTIO_SCSI_CCW, |
68 | .parent = TYPE_VIRTIO_CCW_DEVICE, |
69 | .instance_size = sizeof(VirtIOSCSICcw), |
70 | .instance_init = virtio_ccw_scsi_instance_init, |
71 | .class_init = virtio_ccw_scsi_class_init, |
72 | }; |
73 | |
74 | #ifdef CONFIG_VHOST_SCSI |
75 | |
76 | static void vhost_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
77 | { |
78 | VHostSCSICcw *dev = VHOST_SCSI_CCW(ccw_dev); |
79 | DeviceState *vdev = DEVICE(&dev->vdev); |
80 | |
81 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); |
82 | object_property_set_bool(OBJECT(vdev), true, "realized" , errp); |
83 | } |
84 | |
85 | static void vhost_ccw_scsi_instance_init(Object *obj) |
86 | { |
87 | VHostSCSICcw *dev = VHOST_SCSI_CCW(obj); |
88 | |
89 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), |
90 | TYPE_VHOST_SCSI); |
91 | } |
92 | |
93 | static Property vhost_ccw_scsi_properties[] = { |
94 | DEFINE_PROP_UINT32("max_revision" , VirtioCcwDevice, max_rev, |
95 | VIRTIO_CCW_MAX_REV), |
96 | DEFINE_PROP_END_OF_LIST(), |
97 | }; |
98 | |
99 | static void vhost_ccw_scsi_class_init(ObjectClass *klass, void *data) |
100 | { |
101 | DeviceClass *dc = DEVICE_CLASS(klass); |
102 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); |
103 | |
104 | k->realize = vhost_ccw_scsi_realize; |
105 | dc->props = vhost_ccw_scsi_properties; |
106 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
107 | } |
108 | |
109 | static const TypeInfo vhost_ccw_scsi = { |
110 | .name = TYPE_VHOST_SCSI_CCW, |
111 | .parent = TYPE_VIRTIO_CCW_DEVICE, |
112 | .instance_size = sizeof(VHostSCSICcw), |
113 | .instance_init = vhost_ccw_scsi_instance_init, |
114 | .class_init = vhost_ccw_scsi_class_init, |
115 | }; |
116 | |
117 | #endif |
118 | |
119 | static void virtio_ccw_scsi_register(void) |
120 | { |
121 | type_register_static(&virtio_ccw_scsi); |
122 | #ifdef CONFIG_VHOST_SCSI |
123 | type_register_static(&vhost_ccw_scsi); |
124 | #endif |
125 | } |
126 | |
127 | type_init(virtio_ccw_scsi_register) |
128 | |