[libvirt] [PATCH v2 07/15] nodedev: Introduce virNodeDeviceGetParentName
Create a function which takes a node device "name" entry to lookup
and returns a string containing the parent name for the node device.
Signed-off-by: John Ferlan <jferlan(a)redhat.com>
---
Adjustment from v1... Instead of moving function to virvhba.c, create
a new node_device_conf API which does something similar to what the
changed code from patch 7 and 8 (e.g. virVHBAGetParent) would have done.
src/conf/node_device_conf.c | 30 ++++++++++++++++++++++++++++++
src/conf/node_device_conf.h | 3 +++
src/libvirt_private.syms | 1 +
3 files changed, 34 insertions(+)
diff --git a/src/conf/node_device_conf.c b/src/conf/node_device_conf.c
index b3063d9..34ca0ef 100644
--- a/src/conf/node_device_conf.c
+++ b/src/conf/node_device_conf.c
@@ -2285,3 +2285,33 @@ virNodeDeviceObjListExport(virConnectPtr conn,
VIR_FREE(tmp_devices);
return ret;
}
+
+
+/* virNodeDeviceGetParentName
+ * @conn: Connection pointer
+ * @nodedev_name: Node device to lookup
+ *
+ * Lookup the node device by name and return the parent name
+ *
+ * Returns parent name on success, caller is responsible for freeing;
+ * otherwise, returns NULL on failure
+ */
+char *
+virNodeDeviceGetParentName(virConnectPtr conn,
+ const char *nodedev_name)
+{
+ virNodeDevicePtr device = NULL;
+ char *parent;
+
+ if (!(device = virNodeDeviceLookupByName(conn, nodedev_name))) {
+ virReportError(VIR_ERR_XML_ERROR,
+ _("Cannot find '%s' in node device database"),
+ nodedev_name);
+ return NULL;
+ }
+
+ ignore_value(VIR_STRDUP(parent, virNodeDeviceGetParent(device)));
+ virObjectUnref(device);
+
+ return parent;
+}
diff --git a/src/conf/node_device_conf.h b/src/conf/node_device_conf.h
index 40e930a..6c43546 100644
--- a/src/conf/node_device_conf.h
+++ b/src/conf/node_device_conf.h
@@ -352,4 +352,7 @@ int virNodeDeviceObjListExport(virConnectPtr conn,
virNodeDeviceObjListFilter filter,
unsigned int flags);
+char *virNodeDeviceGetParentName(virConnectPtr conn,
+ const char *nodedev_name);
+
#endif /* __VIR_NODE_DEVICE_CONF_H__ */
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index d721c12..9ad0b0a 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -706,6 +706,7 @@ virNodeDeviceFindVportParentHost;
virNodeDeviceGetParentHost;
virNodeDeviceGetParentHostByFabricWWN;
virNodeDeviceGetParentHostByWWNs;
+virNodeDeviceGetParentName;
virNodeDeviceGetWWNs;
virNodeDeviceHasCap;
virNodeDeviceObjListExport;
--
2.9.3