2 * Copyright (c) 2015 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
15 #include <vnet/vnet.h>
16 #include <vppinfra/vec.h>
17 #include <vppinfra/format.h>
18 #include <vlib/unix/cj.h>
21 #include <vnet/ethernet/ethernet.h>
22 #include <vnet/devices/dpdk/dpdk.h>
24 #include "dpdk_priv.h"
25 #include <vppinfra/error.h>
27 #define foreach_dpdk_tx_func_error \
28 _(BAD_RETVAL, "DPDK tx function returned an error") \
29 _(RING_FULL, "Tx packet drops (ring full)") \
30 _(PKT_DROP, "Tx packet drops (dpdk tx failure)") \
31 _(REPL_FAIL, "Tx packet drops (replication failure)")
35 #define _(f,s) DPDK_TX_FUNC_ERROR_##f,
36 foreach_dpdk_tx_func_error
39 } dpdk_tx_func_error_t;
41 static char *dpdk_tx_func_error_strings[] = {
43 foreach_dpdk_tx_func_error
48 dpdk_set_mac_address (vnet_hw_interface_t * hi, char *address)
51 dpdk_main_t *dm = &dpdk_main;
52 dpdk_device_t *xd = vec_elt_at_index (dm->devices, hi->dev_instance);
54 error = rte_eth_dev_default_mac_addr_set (xd->device_index,
55 (struct ether_addr *) address);
59 return clib_error_return (0, "mac address set failed: %d", error);
68 dpdk_set_mc_filter (vnet_hw_interface_t * hi,
69 struct ether_addr mc_addr_vec[], int naddr)
72 dpdk_main_t *dm = &dpdk_main;
73 dpdk_device_t *xd = vec_elt_at_index (dm->devices, hi->dev_instance);
75 error = rte_eth_dev_set_mc_addr_list (xd->device_index, mc_addr_vec, naddr);
79 return clib_error_return (0, "mc addr list failed: %d", error);
88 dpdk_replicate_packet_mb (vlib_buffer_t * b)
90 dpdk_main_t *dm = &dpdk_main;
91 struct rte_mbuf **mbufs = 0, *s, *d;
93 unsigned socket_id = rte_socket_id ();
96 ASSERT (dm->pktmbuf_pools[socket_id]);
97 s = rte_mbuf_from_vlib_buffer (b);
99 vec_validate (mbufs, nb_segs - 1);
101 if (rte_pktmbuf_alloc_bulk (dm->pktmbuf_pools[socket_id], mbufs, nb_segs))
108 d->nb_segs = s->nb_segs;
109 d->data_len = s->data_len;
110 d->pkt_len = s->pkt_len;
111 d->data_off = s->data_off;
112 clib_memcpy (d->buf_addr, s->buf_addr, RTE_PKTMBUF_HEADROOM + s->data_len);
114 for (i = 1; i < nb_segs; i++)
119 d->data_len = s->data_len;
120 clib_memcpy (d->buf_addr, s->buf_addr,
121 RTE_PKTMBUF_HEADROOM + s->data_len);
130 dpdk_tx_trace_buffer (dpdk_main_t * dm,
131 vlib_node_runtime_t * node,
133 u16 queue_id, u32 buffer_index, vlib_buffer_t * buffer)
135 vlib_main_t *vm = vlib_get_main ();
136 dpdk_tx_dma_trace_t *t0;
139 mb = rte_mbuf_from_vlib_buffer (buffer);
141 t0 = vlib_add_trace (vm, node, buffer, sizeof (t0[0]));
142 t0->queue_index = queue_id;
143 t0->device_index = xd->device_index;
144 t0->buffer_index = buffer_index;
145 clib_memcpy (&t0->mb, mb, sizeof (t0->mb));
146 clib_memcpy (&t0->buffer, buffer,
147 sizeof (buffer[0]) - sizeof (buffer->pre_data));
148 clib_memcpy (t0->buffer.pre_data, buffer->data + buffer->current_data,
149 sizeof (t0->buffer.pre_data));
152 static_always_inline void
153 dpdk_validate_rte_mbuf (vlib_main_t * vm, vlib_buffer_t * b,
156 struct rte_mbuf *mb, *first_mb, *last_mb;
158 /* buffer is coming from non-dpdk source so we need to init
160 if (PREDICT_FALSE ((b->flags & VNET_BUFFER_RTE_MBUF_VALID) == 0))
162 vlib_buffer_t *b2 = b;
163 last_mb = mb = rte_mbuf_from_vlib_buffer (b2);
164 rte_pktmbuf_reset (mb);
165 while (maybe_multiseg && (b2->flags & VLIB_BUFFER_NEXT_PRESENT))
167 b2 = vlib_get_buffer (vm, b2->next_buffer);
168 mb = rte_mbuf_from_vlib_buffer (b2);
171 rte_pktmbuf_reset (mb);
175 first_mb = mb = rte_mbuf_from_vlib_buffer (b);
176 first_mb->nb_segs = 1;
177 mb->data_len = b->current_length;
178 mb->pkt_len = maybe_multiseg ? vlib_buffer_length_in_chain (vm, b) :
180 mb->data_off = VLIB_BUFFER_PRE_DATA_SIZE + b->current_data;
182 while (maybe_multiseg && (b->flags & VLIB_BUFFER_NEXT_PRESENT))
184 b = vlib_get_buffer (vm, b->next_buffer);
185 mb = rte_mbuf_from_vlib_buffer (b);
186 mb->data_len = b->current_length;
187 mb->pkt_len = b->current_length;
188 mb->data_off = VLIB_BUFFER_PRE_DATA_SIZE + b->current_data;
194 * This function calls the dpdk's tx_burst function to transmit the packets
195 * on the tx_vector. It manages a lock per-device if the device does not
196 * support multiple queues. It returns the number of packets untransmitted
197 * on the tx_vector. If all packets are transmitted (the normal case), the
198 * function returns 0.
200 * The function assumes there is at least one packet on the tx_vector.
203 u32 tx_burst_vector_internal (vlib_main_t * vm,
205 struct rte_mbuf **tx_vector)
207 dpdk_main_t *dm = &dpdk_main;
216 ring = vec_header (tx_vector, sizeof (*ring));
218 n_packets = ring->tx_head - ring->tx_tail;
220 tx_head = ring->tx_head % xd->nb_tx_desc;
223 * Ensure rte_eth_tx_burst is not called with 0 packets, which can lead to
224 * unpredictable results.
226 ASSERT (n_packets > 0);
229 * Check for tx_vector overflow. If this fails it is a system configuration
230 * error. The ring should be sized big enough to handle the largest un-flowed
231 * off burst from a traffic manager. A larger size also helps performance
232 * a bit because it decreases the probability of having to issue two tx_burst
233 * calls due to a ring wrap.
235 ASSERT (n_packets < xd->nb_tx_desc);
236 ASSERT (ring->tx_tail == 0);
239 queue_id = vm->cpu_index;
243 /* start the burst at the tail */
244 tx_tail = ring->tx_tail % xd->nb_tx_desc;
247 * This device only supports one TX queue,
248 * and we're running multi-threaded...
250 if (PREDICT_FALSE (xd->lockp != 0))
252 queue_id = queue_id % xd->tx_q_used;
253 while (__sync_lock_test_and_set (xd->lockp[queue_id], 1))
255 queue_id = (queue_id + 1) % xd->tx_q_used;
258 if (PREDICT_FALSE (xd->flags & DPDK_DEVICE_FLAG_HQOS)) /* HQoS ON */
260 /* no wrap, transmit in one burst */
261 dpdk_device_hqos_per_worker_thread_t *hqos =
262 &xd->hqos_wt[vm->cpu_index];
264 ASSERT (hqos->swq != NULL);
266 dpdk_hqos_metadata_set (hqos,
267 &tx_vector[tx_tail], tx_head - tx_tail);
268 rv = rte_ring_sp_enqueue_burst (hqos->swq,
269 (void **) &tx_vector[tx_tail],
270 (uint16_t) (tx_head - tx_tail));
272 else if (PREDICT_TRUE (xd->flags & DPDK_DEVICE_FLAG_PMD))
274 /* no wrap, transmit in one burst */
275 rv = rte_eth_tx_burst (xd->device_index,
278 (uint16_t) (tx_head - tx_tail));
286 if (PREDICT_FALSE (xd->lockp != 0))
287 *xd->lockp[queue_id] = 0;
289 if (PREDICT_FALSE (rv < 0))
291 // emit non-fatal message, bump counter
292 vnet_main_t *vnm = dm->vnet_main;
293 vnet_interface_main_t *im = &vnm->interface_main;
296 node_index = vec_elt_at_index (im->hw_interfaces,
297 xd->vlib_hw_if_index)->tx_node_index;
299 vlib_error_count (vm, node_index, DPDK_TX_FUNC_ERROR_BAD_RETVAL, 1);
300 clib_warning ("rte_eth_tx_burst[%d]: error %d", xd->device_index,
302 return n_packets; // untransmitted packets
304 ring->tx_tail += (u16) rv;
305 n_packets -= (uint16_t) rv;
307 while (rv && n_packets && (n_retry > 0));
312 static_always_inline void
313 dpdk_prefetch_buffer_by_index (vlib_main_t * vm, u32 bi)
317 b = vlib_get_buffer (vm, bi);
318 mb = rte_mbuf_from_vlib_buffer (b);
319 CLIB_PREFETCH (mb, CLIB_CACHE_LINE_BYTES, LOAD);
320 CLIB_PREFETCH (b, CLIB_CACHE_LINE_BYTES, LOAD);
323 static_always_inline void
324 dpdk_buffer_recycle (vlib_main_t * vm, vlib_node_runtime_t * node,
325 vlib_buffer_t * b, u32 bi, struct rte_mbuf **mbp)
327 dpdk_main_t *dm = &dpdk_main;
328 u32 my_cpu = vm->cpu_index;
329 struct rte_mbuf *mb_new;
331 if (PREDICT_FALSE (b->flags & VLIB_BUFFER_RECYCLE) == 0)
334 mb_new = dpdk_replicate_packet_mb (b);
335 if (PREDICT_FALSE (mb_new == 0))
337 vlib_error_count (vm, node->node_index,
338 DPDK_TX_FUNC_ERROR_REPL_FAIL, 1);
339 b->flags |= VLIB_BUFFER_REPL_FAIL;
344 vec_add1 (dm->recycle[my_cpu], bi);
348 * Transmits the packets on the frame to the interface associated with the
349 * node. It first copies packets on the frame to a tx_vector containing the
350 * rte_mbuf pointers. It then passes this vector to tx_burst_vector_internal
351 * which calls the dpdk tx_burst function.
354 dpdk_interface_tx (vlib_main_t * vm,
355 vlib_node_runtime_t * node, vlib_frame_t * f)
357 dpdk_main_t *dm = &dpdk_main;
358 vnet_interface_output_runtime_t *rd = (void *) node->runtime_data;
359 dpdk_device_t *xd = vec_elt_at_index (dm->devices, rd->dev_instance);
360 u32 n_packets = f->n_vectors;
363 struct rte_mbuf **tx_vector;
365 u16 nb_tx_desc = xd->nb_tx_desc;
372 my_cpu = vm->cpu_index;
376 tx_vector = xd->tx_vectors[queue_id];
377 ring = vec_header (tx_vector, sizeof (*ring));
379 n_on_ring = ring->tx_head - ring->tx_tail;
380 from = vlib_frame_vector_args (f);
382 ASSERT (n_packets <= VLIB_FRAME_SIZE);
384 if (PREDICT_FALSE (n_on_ring + n_packets > nb_tx_desc))
387 * Overflowing the ring should never happen.
388 * If it does then drop the whole frame.
390 vlib_error_count (vm, node->node_index, DPDK_TX_FUNC_ERROR_RING_FULL,
395 u32 bi0 = from[n_packets];
396 vlib_buffer_t *b0 = vlib_get_buffer (vm, bi0);
397 struct rte_mbuf *mb0 = rte_mbuf_from_vlib_buffer (b0);
398 rte_pktmbuf_free (mb0);
403 if (PREDICT_FALSE (dm->tx_pcap_enable))
409 vlib_buffer_t *b0 = vlib_get_buffer (vm, bi0);
410 if (dm->pcap_sw_if_index == 0 ||
411 dm->pcap_sw_if_index == vnet_buffer (b0)->sw_if_index[VLIB_TX])
412 pcap_add_buffer (&dm->pcap_main, vm, bi0, 512);
418 from = vlib_frame_vector_args (f);
420 i = ring->tx_head % nb_tx_desc;
424 u32 bi0, bi1, bi2, bi3;
425 struct rte_mbuf *mb0, *mb1, *mb2, *mb3;
426 vlib_buffer_t *b0, *b1, *b2, *b3;
429 dpdk_prefetch_buffer_by_index (vm, from[4]);
430 dpdk_prefetch_buffer_by_index (vm, from[5]);
431 dpdk_prefetch_buffer_by_index (vm, from[6]);
432 dpdk_prefetch_buffer_by_index (vm, from[7]);
440 b0 = vlib_get_buffer (vm, bi0);
441 b1 = vlib_get_buffer (vm, bi1);
442 b2 = vlib_get_buffer (vm, bi2);
443 b3 = vlib_get_buffer (vm, bi3);
445 or_flags = b0->flags | b1->flags | b2->flags | b3->flags;
447 if (or_flags & VLIB_BUFFER_NEXT_PRESENT)
449 dpdk_validate_rte_mbuf (vm, b0, 1);
450 dpdk_validate_rte_mbuf (vm, b1, 1);
451 dpdk_validate_rte_mbuf (vm, b2, 1);
452 dpdk_validate_rte_mbuf (vm, b3, 1);
456 dpdk_validate_rte_mbuf (vm, b0, 0);
457 dpdk_validate_rte_mbuf (vm, b1, 0);
458 dpdk_validate_rte_mbuf (vm, b2, 0);
459 dpdk_validate_rte_mbuf (vm, b3, 0);
462 mb0 = rte_mbuf_from_vlib_buffer (b0);
463 mb1 = rte_mbuf_from_vlib_buffer (b1);
464 mb2 = rte_mbuf_from_vlib_buffer (b2);
465 mb3 = rte_mbuf_from_vlib_buffer (b3);
467 if (PREDICT_FALSE (or_flags & VLIB_BUFFER_RECYCLE))
469 dpdk_buffer_recycle (vm, node, b0, bi0, &mb0);
470 dpdk_buffer_recycle (vm, node, b1, bi1, &mb1);
471 dpdk_buffer_recycle (vm, node, b2, bi2, &mb2);
472 dpdk_buffer_recycle (vm, node, b3, bi3, &mb3);
474 /* dont enqueue packets if replication failed as they must
475 be sent back to recycle */
476 if (PREDICT_TRUE ((b0->flags & VLIB_BUFFER_REPL_FAIL) == 0))
477 tx_vector[i++ % nb_tx_desc] = mb0;
478 if (PREDICT_TRUE ((b1->flags & VLIB_BUFFER_REPL_FAIL) == 0))
479 tx_vector[i++ % nb_tx_desc] = mb1;
480 if (PREDICT_TRUE ((b2->flags & VLIB_BUFFER_REPL_FAIL) == 0))
481 tx_vector[i++ % nb_tx_desc] = mb2;
482 if (PREDICT_TRUE ((b3->flags & VLIB_BUFFER_REPL_FAIL) == 0))
483 tx_vector[i++ % nb_tx_desc] = mb3;
487 if (PREDICT_FALSE (i + 3 >= nb_tx_desc))
489 tx_vector[i++ % nb_tx_desc] = mb0;
490 tx_vector[i++ % nb_tx_desc] = mb1;
491 tx_vector[i++ % nb_tx_desc] = mb2;
492 tx_vector[i++ % nb_tx_desc] = mb3;
497 tx_vector[i++] = mb0;
498 tx_vector[i++] = mb1;
499 tx_vector[i++] = mb2;
500 tx_vector[i++] = mb3;
505 if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE))
507 if (b0->flags & VLIB_BUFFER_IS_TRACED)
508 dpdk_tx_trace_buffer (dm, node, xd, queue_id, bi0, b0);
509 if (b1->flags & VLIB_BUFFER_IS_TRACED)
510 dpdk_tx_trace_buffer (dm, node, xd, queue_id, bi1, b1);
511 if (b2->flags & VLIB_BUFFER_IS_TRACED)
512 dpdk_tx_trace_buffer (dm, node, xd, queue_id, bi2, b2);
513 if (b3->flags & VLIB_BUFFER_IS_TRACED)
514 dpdk_tx_trace_buffer (dm, node, xd, queue_id, bi3, b3);
522 struct rte_mbuf *mb0;
528 b0 = vlib_get_buffer (vm, bi0);
530 dpdk_validate_rte_mbuf (vm, b0, 1);
532 mb0 = rte_mbuf_from_vlib_buffer (b0);
533 dpdk_buffer_recycle (vm, node, b0, bi0, &mb0);
535 if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE))
536 if (b0->flags & VLIB_BUFFER_IS_TRACED)
537 dpdk_tx_trace_buffer (dm, node, xd, queue_id, bi0, b0);
539 if (PREDICT_TRUE ((b0->flags & VLIB_BUFFER_REPL_FAIL) == 0))
541 tx_vector[i % nb_tx_desc] = mb0;
547 /* account for additional packets in the ring */
548 ring->tx_head += n_packets;
549 n_on_ring = ring->tx_head - ring->tx_tail;
551 /* transmit as many packets as possible */
552 n_packets = tx_burst_vector_internal (vm, xd, tx_vector);
555 * tx_pkts is the number of packets successfully transmitted
556 * This is the number originally on ring minus the number remaining on ring
558 tx_pkts = n_on_ring - n_packets;
561 /* If there is no callback then drop any non-transmitted packets */
562 if (PREDICT_FALSE (n_packets))
564 vlib_simple_counter_main_t *cm;
565 vnet_main_t *vnm = vnet_get_main ();
567 cm = vec_elt_at_index (vnm->interface_main.sw_if_counters,
568 VNET_INTERFACE_COUNTER_TX_ERROR);
570 vlib_increment_simple_counter (cm, my_cpu, xd->vlib_sw_if_index,
573 vlib_error_count (vm, node->node_index, DPDK_TX_FUNC_ERROR_PKT_DROP,
577 rte_pktmbuf_free (tx_vector[ring->tx_tail + n_packets]);
580 /* Reset head/tail to avoid unnecessary wrap */
585 /* Recycle replicated buffers */
586 if (PREDICT_FALSE (vec_len (dm->recycle[my_cpu])))
588 vlib_buffer_free (vm, dm->recycle[my_cpu],
589 vec_len (dm->recycle[my_cpu]));
590 _vec_len (dm->recycle[my_cpu]) = 0;
593 ASSERT (ring->tx_head >= ring->tx_tail);
599 dpdk_clear_hw_interface_counters (u32 instance)
601 dpdk_main_t *dm = &dpdk_main;
602 dpdk_device_t *xd = vec_elt_at_index (dm->devices, instance);
605 * Set the "last_cleared_stats" to the current stats, so that
606 * things appear to clear from a display perspective.
608 dpdk_update_counters (xd, vlib_time_now (dm->vlib_main));
610 clib_memcpy (&xd->last_cleared_stats, &xd->stats, sizeof (xd->stats));
611 clib_memcpy (xd->last_cleared_xstats, xd->xstats,
612 vec_len (xd->last_cleared_xstats) *
613 sizeof (xd->last_cleared_xstats[0]));
617 static clib_error_t *
618 dpdk_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
620 vnet_hw_interface_t *hif = vnet_get_hw_interface (vnm, hw_if_index);
621 uword is_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0;
622 dpdk_main_t *dm = &dpdk_main;
623 dpdk_device_t *xd = vec_elt_at_index (dm->devices, hif->dev_instance);
628 f64 now = vlib_time_now (dm->vlib_main);
630 if ((xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) == 0)
631 rv = rte_eth_dev_start (xd->device_index);
633 if (xd->flags & DPDK_DEVICE_FLAG_PROMISC)
634 rte_eth_promiscuous_enable (xd->device_index);
636 rte_eth_promiscuous_disable (xd->device_index);
638 rte_eth_allmulticast_enable (xd->device_index);
639 xd->flags |= DPDK_DEVICE_FLAG_ADMIN_UP;
640 dpdk_update_counters (xd, now);
641 dpdk_update_link_state (xd, now);
645 xd->flags &= ~DPDK_DEVICE_FLAG_ADMIN_UP;
647 rte_eth_allmulticast_disable (xd->device_index);
648 vnet_hw_interface_set_flags (vnm, xd->vlib_hw_if_index, 0);
649 rte_eth_dev_stop (xd->device_index);
651 /* For bonded interface, stop slave links */
652 if (xd->pmd == VNET_DPDK_PMD_BOND)
655 int nlink = rte_eth_bond_slaves_get (xd->device_index, slink, 16);
658 u8 dpdk_port = slink[--nlink];
659 rte_eth_dev_stop (dpdk_port);
665 clib_warning ("rte_eth_dev_%s error: %d", is_up ? "start" : "stop", rv);
667 return /* no error */ 0;
671 * Dynamically redirect all pkts from a specific interface
672 * to the specified node
675 dpdk_set_interface_next_node (vnet_main_t * vnm, u32 hw_if_index,
678 dpdk_main_t *xm = &dpdk_main;
679 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
680 dpdk_device_t *xd = vec_elt_at_index (xm->devices, hw->dev_instance);
682 /* Shut off redirection */
683 if (node_index == ~0)
685 xd->per_interface_next_index = node_index;
689 xd->per_interface_next_index =
690 vlib_node_add_next (xm->vlib_main, dpdk_input_node.index, node_index);
694 static clib_error_t *
695 dpdk_subif_add_del_function (vnet_main_t * vnm,
697 struct vnet_sw_interface_t *st, int is_add)
699 dpdk_main_t *xm = &dpdk_main;
700 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
701 dpdk_device_t *xd = vec_elt_at_index (xm->devices, hw->dev_instance);
702 vnet_sw_interface_t *t = (vnet_sw_interface_t *) st;
704 u32 prev_subifs = xd->num_subifs;
705 clib_error_t *err = 0;
709 else if (xd->num_subifs)
712 if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
715 /* currently we program VLANS only for IXGBE VF and I40E VF */
716 if ((xd->pmd != VNET_DPDK_PMD_IXGBEVF) && (xd->pmd != VNET_DPDK_PMD_I40EVF))
719 if (t->sub.eth.flags.no_tags == 1)
722 if ((t->sub.eth.flags.one_tag != 1) || (t->sub.eth.flags.exact_match != 1))
724 xd->num_subifs = prev_subifs;
725 err = clib_error_return (0, "unsupported VLAN setup");
729 vlan_offload = rte_eth_dev_get_vlan_offload (xd->device_index);
730 vlan_offload |= ETH_VLAN_FILTER_OFFLOAD;
732 if ((r = rte_eth_dev_set_vlan_offload (xd->device_index, vlan_offload)))
734 xd->num_subifs = prev_subifs;
735 err = clib_error_return (0, "rte_eth_dev_set_vlan_offload[%d]: err %d",
736 xd->device_index, r);
742 rte_eth_dev_vlan_filter (xd->device_index, t->sub.eth.outer_vlan_id,
745 xd->num_subifs = prev_subifs;
746 err = clib_error_return (0, "rte_eth_dev_vlan_filter[%d]: err %d",
747 xd->device_index, r);
753 xd->flags |= DPDK_DEVICE_FLAG_HAVE_SUBIF;
755 xd->flags &= ~DPDK_DEVICE_FLAG_HAVE_SUBIF;
761 VNET_DEVICE_CLASS (dpdk_device_class) = {
763 .tx_function = dpdk_interface_tx,
764 .tx_function_n_errors = DPDK_TX_FUNC_N_ERROR,
765 .tx_function_error_strings = dpdk_tx_func_error_strings,
766 .format_device_name = format_dpdk_device_name,
767 .format_device = format_dpdk_device,
768 .format_tx_trace = format_dpdk_tx_dma_trace,
769 .clear_counters = dpdk_clear_hw_interface_counters,
770 .admin_up_down_function = dpdk_interface_admin_up_down,
771 .subif_add_del_function = dpdk_subif_add_del_function,
772 .rx_redirect_to_node = dpdk_set_interface_next_node,
773 .mac_addr_change_function = dpdk_set_mac_address,
776 VLIB_DEVICE_TX_FUNCTION_MULTIARCH (dpdk_device_class, dpdk_interface_tx)
779 #define UP_DOWN_FLAG_EVENT 1
782 admin_up_down_process (vlib_main_t * vm,
783 vlib_node_runtime_t * rt, vlib_frame_t * f)
785 clib_error_t *error = 0;
787 uword *event_data = 0;
793 vlib_process_wait_for_event (vm);
795 event_type = vlib_process_get_events (vm, &event_data);
797 dpdk_main.admin_up_down_in_progress = 1;
801 case UP_DOWN_FLAG_EVENT:
803 if (vec_len (event_data) == 2)
805 sw_if_index = event_data[0];
806 flags = event_data[1];
808 vnet_sw_interface_set_flags (vnet_get_main (), sw_if_index,
810 clib_error_report (error);
816 vec_reset_length (event_data);
818 dpdk_main.admin_up_down_in_progress = 0;
821 return 0; /* or not */
825 VLIB_REGISTER_NODE (admin_up_down_process_node,static) = {
826 .function = admin_up_down_process,
827 .type = VLIB_NODE_TYPE_PROCESS,
828 .name = "admin-up-down-process",
829 .process_log2_n_stack_bytes = 17, // 256KB
834 * fd.io coding-style-patch-verification: ON
837 * eval: (c-set-style "gnu")