+/* *INDENT-ON* */
+
+VLIB_NODE_FUNCTION_MULTIARCH (vnet_per_buffer_interface_output_node,
+ vnet_per_buffer_interface_output);
+
+static uword
+interface_tx_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
+ vlib_frame_t * from_frame)
+{
+ vnet_main_t *vnm = vnet_get_main ();
+ u32 last_sw_if_index = ~0;
+ vlib_frame_t *to_frame = 0;
+ vnet_hw_interface_t *hw = 0;
+ u32 *from, *to_next = 0;
+ u32 n_left_from;
+
+ from = vlib_frame_vector_args (from_frame);
+ n_left_from = from_frame->n_vectors;
+ while (n_left_from > 0)
+ {
+ u32 bi0;
+ vlib_buffer_t *b0;
+ u32 sw_if_index0;
+
+ bi0 = from[0];
+ from++;
+ n_left_from--;
+ b0 = vlib_get_buffer (vm, bi0);
+ sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_TX];
+
+ if (PREDICT_FALSE ((last_sw_if_index != sw_if_index0) || to_frame == 0))
+ {
+ if (to_frame)
+ {
+ hw = vnet_get_sup_hw_interface (vnm, last_sw_if_index);
+ vlib_put_frame_to_node (vm, hw->tx_node_index, to_frame);
+ }
+ last_sw_if_index = sw_if_index0;
+ hw = vnet_get_sup_hw_interface (vnm, sw_if_index0);
+ to_frame = vlib_get_frame_to_node (vm, hw->tx_node_index);
+ to_next = vlib_frame_vector_args (to_frame);
+ }
+
+ to_next[0] = bi0;
+ to_next++;
+ to_frame->n_vectors++;
+ }
+ vlib_put_frame_to_node (vm, hw->tx_node_index, to_frame);
+ return from_frame->n_vectors;
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (interface_tx, static) = {
+ .function = interface_tx_node_fn,
+ .name = "interface-tx",
+ .vector_size = sizeof (u32),
+ .n_next_nodes = 1,
+ .next_nodes = {
+ [0] = "error-drop",
+ },
+};
+
+VNET_FEATURE_ARC_INIT (interface_output, static) =
+{
+ .arc_name = "interface-output",
+ .start_nodes = VNET_FEATURES (0),
+ .end_node = "interface-tx",
+ .arc_index_ptr = &vnet_main.interface_main.output_feature_arc_index,
+};
+
+VNET_FEATURE_INIT (span_tx, static) = {
+ .arc_name = "interface-output",
+ .node_name = "span-output",
+ .runs_before = VNET_FEATURES ("interface-tx"),
+};
+
+VNET_FEATURE_INIT (interface_tx, static) = {
+ .arc_name = "interface-output",
+ .node_name = "interface-tx",
+ .runs_before = 0,
+};
+/* *INDENT-ON* */