[Qemu-devel] [PATCH v6 5/8] virtio-blk-ccw switch to new API.

[fred.konrad@greensocs.com]

From: KONRAD Frederic <fred.konrad@greensocs.com>

Here the virtio-ccw-s390 is modified for the new API. The device
virtio-ccw-s390 extends virtio-ccw-device as before. It creates and
connects a virtio-ccw during the init. The properties are not modified.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
---
 hw/s390x/virtio-ccw.c | 37 +++++++++++++++++++++++--------------
 hw/s390x/virtio-ccw.h | 14 +++++++++++++-
 2 files changed, 36 insertions(+), 15 deletions(-)

diff --git a/hw/s390x/virtio-ccw.c b/hw/s390x/virtio-ccw.c
index a9cf703..401ee57 100644
--- a/hw/s390x/virtio-ccw.c
+++ b/hw/s390x/virtio-ccw.c
@@ -570,22 +570,30 @@ static int virtio_ccw_net_exit(VirtioCcwDevice *dev)
     return virtio_ccw_exit(dev);
 }
 
-static int virtio_ccw_blk_init(VirtioCcwDevice *dev)
+static int virtio_ccw_blk_init(VirtioCcwDevice *ccw_dev)
 {
-    VirtIODevice *vdev;
-
-    vdev = virtio_blk_init((DeviceState *)dev, &dev->blk);
-    if (!vdev) {
+    VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(ccw_dev);
+    DeviceState *vdev = DEVICE(&dev->vdev);
+    virtio_blk_set_conf(vdev, &(dev->blk));
+    qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
+    if (qdev_init(vdev) < 0) {
         return -1;
     }
 
-    return virtio_ccw_device_init(dev, vdev);
+    return virtio_ccw_device_init(ccw_dev, VIRTIO_DEVICE(vdev));
 }
 
-static int virtio_ccw_blk_exit(VirtioCcwDevice *dev)
+static int virtio_ccw_blk_exit(VirtioCcwDevice *ccw_dev)
 {
-    virtio_blk_exit(dev->vdev);
-    return virtio_ccw_exit(dev);
+    virtio_bus_destroy_device(&ccw_dev->bus);
+    return virtio_ccw_exit(ccw_dev);
+}
+
+static void virtio_ccw_blk_instance_init(Object *obj)
+{
+    VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(obj);
+    object_initialize(OBJECT(&dev->vdev), TYPE_VIRTIO_BLK);
+    object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
 }
 
 static int virtio_ccw_serial_init(VirtioCcwDevice *dev)
@@ -730,10 +738,10 @@ static const TypeInfo virtio_ccw_net = {
 
 static Property virtio_ccw_blk_properties[] = {
     DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id),
-    DEFINE_BLOCK_PROPERTIES(VirtioCcwDevice, blk.conf),
-    DEFINE_PROP_STRING("serial", VirtioCcwDevice, blk.serial),
+    DEFINE_BLOCK_PROPERTIES(VirtIOBlkCcw, blk.conf),
+    DEFINE_PROP_STRING("serial", VirtIOBlkCcw, blk.serial),
 #ifdef __linux__
-    DEFINE_PROP_BIT("scsi", VirtioCcwDevice, blk.scsi, 0, true),
+    DEFINE_PROP_BIT("scsi", VirtIOBlkCcw, blk.scsi, 0, true),
 #endif
     DEFINE_VIRTIO_BLK_FEATURES(VirtioCcwDevice, host_features[0]),
     DEFINE_PROP_END_OF_LIST(),
@@ -751,9 +759,10 @@ static void virtio_ccw_blk_class_init(ObjectClass *klass, void *data)
 }
 
 static const TypeInfo virtio_ccw_blk = {
-    .name          = "virtio-blk-ccw",
+    .name          = TYPE_VIRTIO_BLK_CCW,
     .parent        = TYPE_VIRTIO_CCW_DEVICE,
-    .instance_size = sizeof(VirtioCcwDevice),
+    .instance_size = sizeof(VirtIOBlkCcw),
+    .instance_init = virtio_ccw_blk_instance_init,
     .class_init    = virtio_ccw_blk_class_init,
 };
 
diff --git a/hw/s390x/virtio-ccw.h b/hw/s390x/virtio-ccw.h
index 48474b3..9ab0b0d 100644
--- a/hw/s390x/virtio-ccw.h
+++ b/hw/s390x/virtio-ccw.h
@@ -71,7 +71,6 @@ struct VirtioCcwDevice {
     SubchDev *sch;
     VirtIODevice *vdev;
     char *bus_id;
-    VirtIOBlkConf blk;
     NICConf nic;
     uint32_t host_features[VIRTIO_CCW_FEATURE_SIZE];
     virtio_serial_conf serial;
@@ -92,6 +91,19 @@ typedef struct VirtualCssBus {
 #define VIRTUAL_CSS_BUS(obj) \
      OBJECT_CHECK(VirtualCssBus, (obj), TYPE_VIRTUAL_CSS_BUS)
 
+/* virtio-blk-ccw */
+
+#define TYPE_VIRTIO_BLK_CCW "virtio-blk-ccw"
+#define VIRTIO_BLK_CCW(obj) \
+        OBJECT_CHECK(VirtIOBlkCcw, (obj), TYPE_VIRTIO_BLK_CCW)
+
+typedef struct VirtIOBlkCcw {
+    VirtioCcwDevice parent_obj;
+    VirtIOBlock vdev;
+    VirtIOBlkConf blk;
+} VirtIOBlkCcw;
+
+
 VirtualCssBus *virtual_css_bus_init(void);
 void virtio_ccw_device_update_status(SubchDev *sch);
 VirtIODevice *virtio_ccw_get_vdev(SubchDev *sch);
-- 
1.7.11.7