doc: add missing network layers in API reference

[dpdk.git] / lib / librte_net / rte_gre.h

diff --git a/lib/librte_net/rte_gre.h b/lib/librte_net/rte_gre.h
index ac3ddaa..79f0fa8 100644 (file)
--- a/lib/librte_net/rte_gre.h
+++ b/lib/librte_net/rte_gre.h
@@ -8,6 +8,17 @@
 #include <stdint.h>
 #include <rte_byteorder.h>
 
+/**
+ * @file
+ *
+ * GRE headers definition.
+ *
+ * Generic Routing Encapsulation (GRE) is a tunneling protocol that can
+ * encapsulate a wide variety of network layer protocols inside virtual
+ * point-to-point links or point-to-multipoint links over an Internet Protocol
+ * network.
+ */
+
 #ifdef __cplusplus
 extern "C" {
 #endif