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 17 static 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 38 static 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 46 static 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 54 static 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 64 static 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 74 static 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 83 static 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 91 static 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 97 static 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 } 106 107 static 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 116 117 static 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 } 124 125 type_init(virtio_ccw_scsi_register) 126