| 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/core/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/virtio-scsi.h" |
| 19 | |
| 20 | #define TYPE_VIRTIO_SCSI_CCW "virtio-scsi-ccw" |
| 21 | OBJECT_DECLARE_SIMPLE_TYPE(VirtIOSCSICcw, VIRTIO_SCSI_CCW) |
| 22 | |
| 23 | struct VirtIOSCSICcw { |
| 24 | VirtioCcwDevice parent_obj; |
| 25 | VirtIOSCSI vdev; |
| 26 | }; |
| 27 | |
| 28 | static void virtio_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
| 29 | { |
| 30 | VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(ccw_dev); |
| 31 | DeviceState *vdev = DEVICE(&dev->vdev); |
| 32 | DeviceState *qdev = DEVICE(ccw_dev); |
| 33 | char *bus_name; |
| 34 | |
| 35 | /* |
| 36 | * For command line compatibility, this sets the virtio-scsi-device bus |
| 37 | * name as before. |
| 38 | */ |
| 39 | if (qdev->id) { |
| 40 | bus_name = g_strdup_printf("%s.0", qdev->id); |
| 41 | virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name); |
| 42 | g_free(bus_name); |
| 43 | } |
| 44 | |
| 45 | qdev_realize(vdev, BUS(&ccw_dev->bus), errp); |
| 46 | } |
| 47 | |
| 48 | static void virtio_ccw_scsi_instance_init(Object *obj) |
| 49 | { |
| 50 | VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(obj); |
| 51 | |
| 52 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), |
| 53 | TYPE_VIRTIO_SCSI); |
| 54 | } |
| 55 | |
| 56 | static const Property virtio_ccw_scsi_properties[] = { |
| 57 | DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, |
| 58 | VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), |
| 59 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
| 60 | VIRTIO_CCW_MAX_REV), |
| 61 | }; |
| 62 | |
| 63 | static void virtio_ccw_scsi_class_init(ObjectClass *klass, const void *data) |
| 64 | { |
| 65 | DeviceClass *dc = DEVICE_CLASS(klass); |
| 66 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); |
| 67 | |
| 68 | k->realize = virtio_ccw_scsi_realize; |
| 69 | device_class_set_props(dc, virtio_ccw_scsi_properties); |
| 70 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
| 71 | } |
| 72 | |
| 73 | static const TypeInfo virtio_ccw_scsi = { |
| 74 | .name = TYPE_VIRTIO_SCSI_CCW, |
| 75 | .parent = TYPE_VIRTIO_CCW_DEVICE, |
| 76 | .instance_size = sizeof(VirtIOSCSICcw), |
| 77 | .instance_init = virtio_ccw_scsi_instance_init, |
| 78 | .class_init = virtio_ccw_scsi_class_init, |
| 79 | }; |
| 80 | |
| 81 | static void virtio_ccw_scsi_register(void) |
| 82 | { |
| 83 | type_register_static(&virtio_ccw_scsi); |
| 84 | } |
| 85 | |
| 86 | type_init(virtio_ccw_scsi_register) |