[Qemu-devel] [PATCH v2 2/2] virtio-scsi: Move DEFINE_VIRTIO_SCSI_FEATURES to virtio-scsi

[shannon.zhao@linaro.org]

From: Shannon Zhao <shannon.zhao@linaro.org>

Move DEFINE_VIRTIO_SCSI_FEATURES to the backend virtio-scsi.
The transports just sync the host features from backend.

Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
---
 hw/s390x/s390-virtio-bus.c      | 1 -
 hw/s390x/virtio-ccw.c           | 1 -
 hw/scsi/virtio-scsi.c           | 5 +++++
 hw/virtio/virtio-pci.c          | 1 -
 include/hw/virtio/virtio-scsi.h | 1 +
 5 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/hw/s390x/s390-virtio-bus.c b/hw/s390x/s390-virtio-bus.c
index 1987873..72c205e 100644
--- a/hw/s390x/s390-virtio-bus.c
+++ b/hw/s390x/s390-virtio-bus.c
@@ -623,7 +623,6 @@ static const TypeInfo virtio_s390_device_info = {
 
 static Property s390_virtio_scsi_properties[] = {
     DEFINE_VIRTIO_COMMON_FEATURES(VirtIOS390Device, host_features),
-    DEFINE_VIRTIO_SCSI_FEATURES(VirtIOS390Device, host_features),
     DEFINE_PROP_END_OF_LIST(),
 };
 
diff --git a/hw/s390x/virtio-ccw.c b/hw/s390x/virtio-ccw.c
index d9dc80c..754ce18 100644
--- a/hw/s390x/virtio-ccw.c
+++ b/hw/s390x/virtio-ccw.c
@@ -1503,7 +1503,6 @@ static const TypeInfo virtio_ccw_balloon = {
 
 static Property virtio_ccw_scsi_properties[] = {
     DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id),
-    DEFINE_VIRTIO_SCSI_FEATURES(VirtioCcwDevice, host_features[0]),
     DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
                     VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
     DEFINE_PROP_END_OF_LIST(),
diff --git a/hw/scsi/virtio-scsi.c b/hw/scsi/virtio-scsi.c
index da0cff8..719740e 100644
--- a/hw/scsi/virtio-scsi.c
+++ b/hw/scsi/virtio-scsi.c
@@ -627,6 +627,10 @@ static void virtio_scsi_set_config(VirtIODevice *vdev,
 static uint32_t virtio_scsi_get_features(VirtIODevice *vdev,
                                          uint32_t requested_features)
 {
+    VirtIOSCSI *s = VIRTIO_SCSI(vdev);
+
+    /* First sync all virtio-scsi possible supported features */
+    requested_features |= s->host_features;
     return requested_features;
 }
 
@@ -941,6 +945,7 @@ static void virtio_scsi_device_unrealize(DeviceState *dev, Error **errp)
 
 static Property virtio_scsi_properties[] = {
     DEFINE_VIRTIO_SCSI_PROPERTIES(VirtIOSCSI, parent_obj.conf),
+    DEFINE_VIRTIO_SCSI_FEATURES(VirtIOSCSI, host_features),
     DEFINE_PROP_END_OF_LIST(),
 };
 
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index 772244e..7e2ac9e 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -1078,7 +1078,6 @@ static Property virtio_scsi_pci_properties[] = {
                     VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true),
     DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors,
                        DEV_NVECTORS_UNSPECIFIED),
-    DEFINE_VIRTIO_SCSI_FEATURES(VirtIOPCIProxy, host_features),
     DEFINE_PROP_END_OF_LIST(),
 };
 
diff --git a/include/hw/virtio/virtio-scsi.h b/include/hw/virtio/virtio-scsi.h
index f93b57d..b42e7f1 100644
--- a/include/hw/virtio/virtio-scsi.h
+++ b/include/hw/virtio/virtio-scsi.h
@@ -98,6 +98,7 @@ typedef struct VirtIOSCSI {
     bool dataplane_fenced;
     Error *blocker;
     Notifier migration_state_notifier;
+    uint32_t host_features;
 } VirtIOSCSI;
 
 typedef struct VirtIOSCSIReq {
-- 
2.0.4