nodedev: introduce concept of 'active' node devices

we will be able to define mediated devices that can be started or
stopped, so we need to be able to indicate whether the device is active
or not, similar to other resources (storage pools, domains, etc.)

Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>

src/conf/virnodedeviceobj.c

@@ -39,6 +39,7 @@ struct _virNodeDeviceObj {
     virNodeDeviceDefPtr def;            /* device definition */
     bool skipUpdateCaps;                /* whether to skip checking host caps,
                                            used by testdriver */
+    bool active;
 };
 
 struct _virNodeDeviceObjList {
@@ -976,3 +977,18 @@ virNodeDeviceObjSetSkipUpdateCaps(virNodeDeviceObjPtr obj,
 {
     obj->skipUpdateCaps = skipUpdateCaps;
 }
+
+
+bool
+virNodeDeviceObjIsActive(virNodeDeviceObj *obj)
+{
+    return obj->active;
+}
+
+
+void
+virNodeDeviceObjSetActive(virNodeDeviceObj *obj,
+                          bool active)
+{
+    obj->active = active;
+}

src/conf/virnodedeviceobj.h

@@ -121,3 +121,10 @@ virNodeDeviceObjSetSkipUpdateCaps(virNodeDeviceObjPtr obj,
 virNodeDeviceObjPtr
 virNodeDeviceObjListFindMediatedDeviceByUUID(virNodeDeviceObjListPtr devs,
                                              const char *uuid);
+
+bool
+virNodeDeviceObjIsActive(virNodeDeviceObj *obj);
+
+void
+virNodeDeviceObjSetActive(virNodeDeviceObj *obj,
+                          bool active);

src/libvirt_private.syms

@@ -1272,6 +1272,7 @@ virNetworkPortDefSaveStatus;
 # conf/virnodedeviceobj.h
 virNodeDeviceObjEndAPI;
 virNodeDeviceObjGetDef;
+virNodeDeviceObjIsActive;
 virNodeDeviceObjListAssignDef;
 virNodeDeviceObjListExport;
 virNodeDeviceObjListFindByName;
@@ -1284,6 +1285,7 @@ virNodeDeviceObjListGetParentHost;
 virNodeDeviceObjListNew;
 virNodeDeviceObjListNumOfDevices;
 virNodeDeviceObjListRemove;
+virNodeDeviceObjSetActive;
 
 
 # conf/virnwfilterbindingdef.h

src/node_device/node_device_udev.c

@@ -1544,6 +1544,7 @@ udevAddOneDevice(struct udev_device *device)
     else
         event = virNodeDeviceEventUpdateNew(objdef->name);
 
+    virNodeDeviceObjSetActive(obj, true);
     virNodeDeviceObjEndAPI(&obj);
 
     ret = 0;
@@ -1930,6 +1931,8 @@ udevSetupSystemDev(void)
     if (!(obj = virNodeDeviceObjListAssignDef(driver->devs, def)))
         goto cleanup;
 
+    virNodeDeviceObjSetActive(obj, true);
+
     virNodeDeviceObjEndAPI(&obj);
 
     ret = 0;