1 files changed, 34 insertions, 0 deletions
diff --git a/headers/xdp/prog_dispatcher.h b/headers/xdp/prog_dispatcher.h
new file mode 100644
index 0000000..e7ead85
--- /dev/null
+++ b/headers/xdp/prog_dispatcher.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-clause) */
+
+#ifndef __PROG_DISPATCHER_H
+#define __PROG_DISPATCHER_H
+
+#include <linux/types.h>
+
+#define XDP_METADATA_SECTION "xdp_metadata"
+#define XDP_DISPATCHER_VERSION 2
+
+/* magic byte is 'X' + 'D' + 'P' (88+68+80=236) */
+#define XDP_DISPATCHER_MAGIC 236
+/* default retval for dispatcher corresponds to the highest bit in the
+ * chain_call_actions bitmap; we use this to make sure the dispatcher always
+ * continues the calls chain if a function does not have an freplace program
+ * attached.
+ */
+#define XDP_DISPATCHER_RETVAL 31
+
+#ifndef MAX_DISPATCHER_ACTIONS
+#define MAX_DISPATCHER_ACTIONS 10
+#endif
+
+struct xdp_dispatcher_config {
+	__u8 magic;                         /* Set to XDP_DISPATCHER_MAGIC */
+	__u8 dispatcher_version;            /* Set to XDP_DISPATCHER_VERSION */
+	__u8 num_progs_enabled;             /* Number of active program slots */
+	__u8 is_xdp_frags;                  /* Whether this dispatcher is loaded with XDP frags support */
+	__u32 chain_call_actions[MAX_DISPATCHER_ACTIONS];
+	__u32 run_prios[MAX_DISPATCHER_ACTIONS];
+	__u32 program_flags[MAX_DISPATCHER_ACTIONS];
+};
+
+#endif