From: KONRAD Frederic <fred.kon...@greensocs.com>
Create virtio-scsi which extends virtio-device, so it can be connected on
virtio-bus.
Signed-off-by: KONRAD Frederic <fred.kon...@greensocs.com>
---
hw/virtio-pci.c | 5 ++++
hw/virtio-scsi.c | 91 ++++++++++++++++++++++++++++++++++++++++++++++++++++----
hw/virtio-scsi.h | 7 +++++
3 files changed, 98 insertions(+), 5 deletions(-)
diff --git a/hw/virtio-pci.c b/hw/virtio-pci.c
index 8955b73..be382c0 100644
--- a/hw/virtio-pci.c
+++ b/hw/virtio-pci.c
@@ -1065,6 +1065,11 @@ static void virtio_pci_device_plugged(DeviceState *d)
PCI_DEVICE_ID_VIRTIO_NET);
pci_config_set_class(proxy->pci_dev.config,
PCI_CLASS_NETWORK_ETHERNET);
break;
+ case VIRTIO_ID_SCSI:
+ pci_config_set_device_id(proxy->pci_dev.config,
+ PCI_DEVICE_ID_VIRTIO_SCSI);
+ pci_config_set_class(proxy->pci_dev.config, PCI_CLASS_STORAGE_SCSI);
+ break;
default:
error_report("unknown device id\n");
break;
diff --git a/hw/virtio-scsi.c b/hw/virtio-scsi.c
index 7b922ab..ad07a65 100644
--- a/hw/virtio-scsi.c
+++ b/hw/virtio-scsi.c
@@ -16,6 +16,7 @@
#include "virtio-scsi.h"
#include <hw/scsi.h>
#include <hw/scsi-defs.h>
+#include "virtio-bus.h"
#define VIRTIO_SCSI_VQ_SIZE 128
#define VIRTIO_SCSI_CDB_SIZE 32
@@ -681,15 +682,36 @@ static struct SCSIBusInfo virtio_scsi_scsi_info = {
.load_request = virtio_scsi_load_request,
};
-VirtIODevice *virtio_scsi_init(DeviceState *dev, VirtIOSCSIConf *proxyconf)
+void virtio_scsi_set_conf(DeviceState *qdev, VirtIOSCSIConf *conf)
{
- VirtIOSCSI *s;
+ VirtIOSCSI *s = VIRTIO_SCSI(qdev);
+ memcpy(&(s->conf), conf, sizeof(struct VirtIOSCSIConf));
+}
+
+static VirtIODevice *virtio_scsi_common_init(DeviceState *dev,
+ VirtIOSCSIConf *proxyconf,
+ VirtIOSCSI **ps)
+{
+ VirtIOSCSI *s = *ps;
static int virtio_scsi_id;
int i;
- s = (VirtIOSCSI *)virtio_common_init("virtio-scsi", VIRTIO_ID_SCSI,
- sizeof(VirtIOSCSIConfig),
- sizeof(VirtIOSCSI));
+ /*
+ * We have two cases here : the old virtio-net-pci device, and the
+ * refactored virtio-net.
+ */
+
+ if (s == NULL) {
+ /* virtio-scsi-pci */
+ s = (VirtIOSCSI *)virtio_common_init("virtio-scsi", VIRTIO_ID_SCSI,
+ sizeof(VirtIOSCSIConfig),
+ sizeof(VirtIOSCSI));
+ } else {
+ /* virtio-scsi */
+ virtio_init(VIRTIO_DEVICE(s), "virtio-scsi", VIRTIO_ID_SCSI,
+ sizeof(VirtIOSCSIConfig));
+ }
+
s->cmd_vqs = g_malloc0(proxyconf->num_queues * sizeof(VirtQueue *));
s->qdev = dev;
@@ -721,9 +743,68 @@ VirtIODevice *virtio_scsi_init(DeviceState *dev,
VirtIOSCSIConf *proxyconf)
return &s->vdev;
}
+VirtIODevice *virtio_scsi_init(DeviceState *dev, VirtIOSCSIConf *proxyconf)
+{
+ VirtIOSCSI *s = NULL;
+ return virtio_scsi_common_init(dev, proxyconf, &s);
+}
+
void virtio_scsi_exit(VirtIODevice *vdev)
{
VirtIOSCSI *s = (VirtIOSCSI *)vdev;
unregister_savevm(s->qdev, "virtio-scsi", s);
virtio_cleanup(vdev);
}
+
+static int virtio_scsi_device_init(VirtIODevice *vdev)
+{
+ DeviceState *qdev = DEVICE(vdev);
+ VirtIOSCSI *s = VIRTIO_SCSI(vdev);
+ if (virtio_scsi_common_init(qdev, &(s->conf), &s) == NULL) {
+ return -1;
+ }
+ return 0;
+}
+
+static int virtio_scsi_device_exit(DeviceState *qdev)
+{
+ VirtIOSCSI *s = VIRTIO_SCSI(qdev);
+ VirtIODevice *vdev = VIRTIO_DEVICE(qdev);
+
+ unregister_savevm(qdev, "virtio-scsi", s);
+ g_free(s->cmd_vqs);
+ virtio_common_cleanup(vdev);
+ return 0;
+}
+
+static Property virtio_scsi_properties[] = {
+ DEFINE_VIRTIO_SCSI_PROPERTIES(VirtIOSCSI, conf),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void virtio_scsi_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass);
+ dc->exit = virtio_scsi_device_exit;
+ dc->props = virtio_scsi_properties;
+ vdc->init = virtio_scsi_device_init;
+ vdc->get_config = virtio_scsi_get_config;
+ vdc->set_config = virtio_scsi_set_config;
+ vdc->get_features = virtio_scsi_get_features;
+ vdc->reset = virtio_scsi_reset;
+}
+
+static const TypeInfo virtio_scsi_info = {
+ .name = TYPE_VIRTIO_SCSI,
+ .parent = TYPE_VIRTIO_DEVICE,
+ .instance_size = sizeof(VirtIOSCSI),
+ .class_init = virtio_scsi_class_init,
+};
+
+static void virtio_register_types(void)
+{
+ type_register_static(&virtio_scsi_info);
+}
+
+type_init(virtio_register_types)
diff --git a/hw/virtio-scsi.h b/hw/virtio-scsi.h
index 197a7b5..67d9067 100644
--- a/hw/virtio-scsi.h
+++ b/hw/virtio-scsi.h
@@ -18,6 +18,11 @@
#include "pci/pci.h"
#include <hw/scsi.h>
+#define TYPE_VIRTIO_SCSI "virtio-scsi"
+#define VIRTIO_SCSI(obj) \
+ OBJECT_CHECK(VirtIOSCSI, (obj), TYPE_VIRTIO_SCSI)
+
+
/* The ID for virtio_scsi */
#define VIRTIO_ID_SCSI 8
@@ -52,4 +57,6 @@ typedef struct {
DEFINE_PROP_UINT32("max_sectors", _state, _conf_field.max_sectors,
0xFFFF),\
DEFINE_PROP_UINT32("cmd_per_lun", _state, _conf_field.cmd_per_lun, 128)
+void virtio_scsi_set_conf(DeviceState *qdev, VirtIOSCSIConf *conf);
+
#endif /* _QEMU_VIRTIO_SCSI_H */
--
1.7.11.7
