LXR qemu/hw/s390x/virtio-ccw-scsi.c

   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/virtio/virtio.h"
  14#include "qapi/error.h"
  15#include "virtio-ccw.h"
  16
  17static void virtio_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp)
  18{
  19    VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(ccw_dev);
  20    DeviceState *vdev = DEVICE(&dev->vdev);
  21    DeviceState *qdev = DEVICE(ccw_dev);
  22    char *bus_name;
  23
  24    /*
  25     * For command line compatibility, this sets the virtio-scsi-device bus
  26     * name as before.
  27     */
  28    if (qdev->id) {
  29        bus_name = g_strdup_printf("%s.0", qdev->id);
  30        virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name);
  31        g_free(bus_name);
  32    }
  33
  34    qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
  35    object_property_set_bool(OBJECT(vdev), true, "realized", errp);
  36}
  37
  38static void virtio_ccw_scsi_instance_init(Object *obj)
  39{
  40    VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(obj);
  41
  42    virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
  43                                TYPE_VIRTIO_SCSI);
  44}
  45
  46static Property virtio_ccw_scsi_properties[] = {
  47    DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
  48                    VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
  49    DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
  50                       VIRTIO_CCW_MAX_REV),
  51    DEFINE_PROP_END_OF_LIST(),
  52};
  53
  54static void virtio_ccw_scsi_class_init(ObjectClass *klass, void *data)
  55{
  56    DeviceClass *dc = DEVICE_CLASS(klass);
  57    VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
  58
  59    k->realize = virtio_ccw_scsi_realize;
  60    dc->props = virtio_ccw_scsi_properties;
  61    set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
  62}
  63
  64static const TypeInfo virtio_ccw_scsi = {
  65    .name          = TYPE_VIRTIO_SCSI_CCW,
  66    .parent        = TYPE_VIRTIO_CCW_DEVICE,
  67    .instance_size = sizeof(VirtIOSCSICcw),
  68    .instance_init = virtio_ccw_scsi_instance_init,
  69    .class_init    = virtio_ccw_scsi_class_init,
  70};
  71
  72#ifdef CONFIG_VHOST_SCSI
  73
  74static void vhost_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp)
  75{
  76    VHostSCSICcw *dev = VHOST_SCSI_CCW(ccw_dev);
  77    DeviceState *vdev = DEVICE(&dev->vdev);
  78
  79    qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
  80    object_property_set_bool(OBJECT(vdev), true, "realized", errp);
  81}
  82
  83static void vhost_ccw_scsi_instance_init(Object *obj)
  84{
  85    VHostSCSICcw *dev = VHOST_SCSI_CCW(obj);
  86
  87    virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
  88                                TYPE_VHOST_SCSI);
  89}
  90
  91static Property vhost_ccw_scsi_properties[] = {
  92    DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
  93                       VIRTIO_CCW_MAX_REV),
  94    DEFINE_PROP_END_OF_LIST(),
  95};
  96
  97static void vhost_ccw_scsi_class_init(ObjectClass *klass, void *data)
  98{
  99    DeviceClass *dc = DEVICE_CLASS(klass);
 100    VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
 101
 102    k->realize = vhost_ccw_scsi_realize;
 103    dc->props = vhost_ccw_scsi_properties;
 104    set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
 105}
 106
 107static const TypeInfo vhost_ccw_scsi = {
 108    .name          = TYPE_VHOST_SCSI_CCW,
 109    .parent        = TYPE_VIRTIO_CCW_DEVICE,
 110    .instance_size = sizeof(VHostSCSICcw),
 111    .instance_init = vhost_ccw_scsi_instance_init,
 112    .class_init    = vhost_ccw_scsi_class_init,
 113};
 114
 115#endif
 116
 117static void virtio_ccw_scsi_register(void)
 118{
 119    type_register_static(&virtio_ccw_scsi);
 120#ifdef CONFIG_VHOST_SCSI
 121    type_register_static(&vhost_ccw_scsi);
 122#endif
 123}
 124
 125type_init(virtio_ccw_scsi_register)
 126