+/**
+ * rdma_join_multicast - Join the multicast group specified by the given
+ * address.
+ * @id: Communication identifier associated with the request.
+ * @addr: Multicast address identifying the group to join.
+ * @context: User-defined context associated with the join request, returned
+ * to the user through the private_data pointer in multicast events.
+ */
+int rdma_join_multicast(struct rdma_cm_id *id, struct sockaddr *addr,
+ void *context);
+
+/**
+ * rdma_leave_multicast - Leave the multicast group specified by the given
+ * address.
+ */
+void rdma_leave_multicast(struct rdma_cm_id *id, struct sockaddr *addr);
+
+/**
+ * rdma_set_service_type - Set the type of service associated with a
+ * connection identifier.
+ * @id: Communication identifier to associated with service type.
+ * @tos: Type of service.
+ *
+ * The type of service is interpretted as a differentiated service
+ * field (RFC 2474). The service type should be specified before
+ * performing route resolution, as existing communication on the
+ * connection identifier may be unaffected. The type of service
+ * requested may not be supported by the network to all destinations.
+ */
+void rdma_set_service_type(struct rdma_cm_id *id, int tos);