xref: /openbmc/qemu/hw/s390x/vhost-scsi-ccw.c (revision 6fdc5bc1)
1 /*
2  * vhost 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 #include "hw/virtio/vhost-scsi.h"
19 
20 #define TYPE_VHOST_SCSI_CCW "vhost-scsi-ccw"
21 OBJECT_DECLARE_SIMPLE_TYPE(VHostSCSICcw, VHOST_SCSI_CCW)
22 
23 struct VHostSCSICcw {
24     VirtioCcwDevice parent_obj;
25     VHostSCSI vdev;
26 };
27 
28 static void vhost_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp)
29 {
30     VHostSCSICcw *dev = VHOST_SCSI_CCW(ccw_dev);
31     DeviceState *vdev = DEVICE(&dev->vdev);
32 
33     qdev_realize(vdev, BUS(&ccw_dev->bus), errp);
34 }
35 
36 static void vhost_ccw_scsi_instance_init(Object *obj)
37 {
38     VHostSCSICcw *dev = VHOST_SCSI_CCW(obj);
39 
40     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
41                                 TYPE_VHOST_SCSI);
42 }
43 
44 static Property vhost_ccw_scsi_properties[] = {
45     DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
46                        VIRTIO_CCW_MAX_REV),
47     DEFINE_PROP_END_OF_LIST(),
48 };
49 
50 static void vhost_ccw_scsi_class_init(ObjectClass *klass, void *data)
51 {
52     DeviceClass *dc = DEVICE_CLASS(klass);
53     VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
54 
55     k->realize = vhost_ccw_scsi_realize;
56     device_class_set_props(dc, vhost_ccw_scsi_properties);
57     set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
58 }
59 
60 static const TypeInfo vhost_ccw_scsi = {
61     .name          = TYPE_VHOST_SCSI_CCW,
62     .parent        = TYPE_VIRTIO_CCW_DEVICE,
63     .instance_size = sizeof(VHostSCSICcw),
64     .instance_init = vhost_ccw_scsi_instance_init,
65     .class_init    = vhost_ccw_scsi_class_init,
66 };
67 
68 static void virtio_ccw_scsi_register(void)
69 {
70     type_register_static(&vhost_ccw_scsi);
71 }
72 
73 type_init(virtio_ccw_scsi_register)
74