diff --git a/include/rdma/ib_cache.h b/include/rdma/ib_cache.h
index dcc9bed..679d7ca 100644
--- a/include/rdma/ib_cache.h
+++ b/include/rdma/ib_cache.h
@@ -75,6 +75,25 @@
 		       u16              *index);
 
 /**
+ * ib_find_cached_gid_by_port - Returns the GID table index where a specified
+ * GID value occurs
+ * @device: The device to query.
+ * @gid: The GID value to search for.
+ * @port_num: The port number of the device where the GID value sould be
+ *   searched.
+ * @ndev: In RoCE, the net device of the device. Null means ignore.
+ * @index: The index into the cached GID table where the GID was found.  This
+ *   parameter may be NULL.
+ *
+ * ib_find_cached_gid() searches for the specified GID value in
+ * the local software cache.
+ */
+int ib_find_cached_gid_by_port(struct ib_device *device,
+			       const union ib_gid *gid,
+			       u8               port_num,
+			       struct net_device *ndev,
+			       u16              *index);
+/**
  * ib_get_cached_pkey - Returns a cached PKey table entry
  * @device: The device to query.
  * @port_num: The port number of the device to query.