+ vnet_hw_if_output_node_runtime_t *r = 0;
+ vlib_buffer_t *bufs[VLIB_FRAME_SIZE];
+ u32 n_bytes, n_buffers = frame->n_vectors;
+ u32 config_index = ~0;
+ u32 sw_if_index = rt->sw_if_index;
+ u32 next_index = VNET_INTERFACE_OUTPUT_NEXT_TX;
+ u32 ti = vm->thread_index;
+ u8 arc = im->output_feature_arc_index;
+ int arc_or_subif = 0;
+ int do_tx_offloads = 0;
+ void *ptr[VLIB_FRAME_SIZE], **p = ptr;
+ u8 is_parr = 0;
+ u32 *from;
+
+ if (node->flags & VLIB_NODE_FLAG_TRACE)
+ vnet_interface_output_trace (vm, node, frame, n_buffers);
+
+ from = vlib_frame_vector_args (frame);
+
+ if (rt->is_deleted)
+ return vlib_error_drop_buffers (
+ vm, node, from,
+ /* buffer stride */ 1, n_buffers, VNET_INTERFACE_OUTPUT_NEXT_DROP,
+ node->node_index, VNET_INTERFACE_OUTPUT_ERROR_INTERFACE_DELETED);
+
+ vnet_interface_pcap_tx_trace (vm, node, frame, 0 /* in_interface_ouput */);
+
+ vlib_get_buffers (vm, from, bufs, n_buffers);
+
+ si = vnet_get_sw_interface (vnm, sw_if_index);
+ hi = vnet_get_sup_hw_interface (vnm, sw_if_index);
+
+ if (!(si->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) ||
+ !(hi->flags & VNET_HW_INTERFACE_FLAG_LINK_UP))
+ {
+ vlib_simple_counter_main_t *cm;
+
+ cm = vec_elt_at_index (vnm->interface_main.sw_if_counters,
+ VNET_INTERFACE_COUNTER_TX_ERROR);
+ vlib_increment_simple_counter (cm, ti, sw_if_index, n_buffers);
+
+ return vlib_error_drop_buffers (
+ vm, node, from,
+ /* buffer stride */ 1, n_buffers, VNET_INTERFACE_OUTPUT_NEXT_DROP,
+ node->node_index, VNET_INTERFACE_OUTPUT_ERROR_INTERFACE_DOWN);
+ }
+
+ if (hi->output_node_thread_runtimes)
+ r = vec_elt_at_index (hi->output_node_thread_runtimes, vm->thread_index);
+
+ if (r)
+ {
+ /*
+ * tx queue of given interface is not available on given thread
+ */
+ if (r->n_queues == 0)
+ return vlib_error_drop_buffers (
+ vm, node, from,
+ /* buffer stride */ 1, n_buffers, VNET_INTERFACE_OUTPUT_NEXT_DROP,
+ node->node_index, VNET_INTERFACE_OUTPUT_ERROR_NO_TX_QUEUE);
+ /*
+ * multiple tx queues available on given thread
+ */
+ else if (r->n_queues > 1)
+ /* construct array of pointer */
+ is_parr = 1;
+ }