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