1 files changed, 17 insertions, 0 deletions
diff --git a/src/vnet/interface_format.c b/src/vnet/interface_format.c
index b961c778d2c..03caf5c6dd7 100644
--- a/src/vnet/interface_format.c
+++ b/src/vnet/interface_format.c
@@ -59,6 +59,23 @@ format_vnet_sw_interface_flags (u8 * s, va_list * args)
 }
 
 u8 *
+format_vnet_hw_interface_rx_mode (u8 * s, va_list * args)
+{
+  vnet_hw_interface_rx_mode mode = va_arg (*args, vnet_hw_interface_rx_mode);
+
+  if (mode == VNET_HW_INTERFACE_RX_MODE_POLLING)
+    return format (s, "polling");
+
+  if (mode == VNET_HW_INTERFACE_RX_MODE_INTERRUPT)
+    return format (s, "interrupt");
+
+  if (mode == VNET_HW_INTERFACE_RX_MODE_ADAPTIVE)
+    return format (s, "adaptive");
+
+  return format (s, "unknown");
+}
+
+u8 *
 format_vnet_hw_interface (u8 * s, va_list * args)
 {
   vnet_main_t *vnm = va_arg (*args, vnet_main_t *);