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 vlib_main_t *vm = vlib_get_main ();
91 vlib_buffer_main_t *bm = vm->buffer_main;
92 struct rte_mbuf **mbufs = 0, *s, *d;
94 unsigned socket_id = rte_socket_id ();
97 ASSERT (bm->pktmbuf_pools[socket_id]);
98 s = rte_mbuf_from_vlib_buffer (b);
100 vec_validate (mbufs, nb_segs - 1);
102 if (rte_pktmbuf_alloc_bulk (bm->pktmbuf_pools[socket_id], mbufs, nb_segs))
109 d->nb_segs = s->nb_segs;
110 d->data_len = s->data_len;
111 d->pkt_len = s->pkt_len;
112 d->data_off = s->data_off;
113 clib_memcpy (d->buf_addr, s->buf_addr, RTE_PKTMBUF_HEADROOM + s->data_len);
115 for (i = 1; i < nb_segs; i++)
120 d->data_len = s->data_len;
121 clib_memcpy (d->buf_addr, s->buf_addr,
122 RTE_PKTMBUF_HEADROOM + s->data_len);
131 dpdk_tx_trace_buffer (dpdk_main_t * dm,
132 vlib_node_runtime_t * node,
134 u16 queue_id, u32 buffer_index, vlib_buffer_t * buffer)
136 vlib_main_t *vm = vlib_get_main ();
137 dpdk_tx_dma_trace_t *t0;
140 mb = rte_mbuf_from_vlib_buffer (buffer);
142 t0 = vlib_add_trace (vm, node, buffer, sizeof (t0[0]));
143 t0->queue_index = queue_id;
144 t0->device_index = xd->device_index;
145 t0->buffer_index = buffer_index;
146 clib_memcpy (&t0->mb, mb, sizeof (t0->mb));
147 clib_memcpy (&t0->buffer, buffer,
148 sizeof (buffer[0]) - sizeof (buffer->pre_data));
149 clib_memcpy (t0->buffer.pre_data, buffer->data + buffer->current_data,
150 sizeof (t0->buffer.pre_data));
153 static_always_inline void
154 dpdk_validate_rte_mbuf (vlib_main_t * vm, vlib_buffer_t * b,
157 struct rte_mbuf *mb, *first_mb, *last_mb;
159 /* buffer is coming from non-dpdk source so we need to init
161 if (PREDICT_FALSE ((b->flags & VNET_BUFFER_RTE_MBUF_VALID) == 0))
163 last_mb = mb = rte_mbuf_from_vlib_buffer (b);
164 rte_pktmbuf_reset (mb);
165 while (maybe_multiseg && (b->flags & VLIB_BUFFER_NEXT_PRESENT))
167 b = vlib_get_buffer (vm, b->next_buffer);
168 mb = rte_mbuf_from_vlib_buffer (b);
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 dpdk_hqos_metadata_set (hqos,
265 &tx_vector[tx_tail], tx_head - tx_tail);
266 rv = rte_ring_sp_enqueue_burst (hqos->swq,
267 (void **) &tx_vector[tx_tail],
268 (uint16_t) (tx_head - tx_tail));
270 else if (PREDICT_TRUE (xd->flags & DPDK_DEVICE_FLAG_PMD))
272 /* no wrap, transmit in one burst */
273 rv = rte_eth_tx_burst (xd->device_index,
276 (uint16_t) (tx_head - tx_tail));
284 if (PREDICT_FALSE (xd->lockp != 0))
285 *xd->lockp[queue_id] = 0;
287 if (PREDICT_FALSE (rv < 0))
289 // emit non-fatal message, bump counter
290 vnet_main_t *vnm = dm->vnet_main;
291 vnet_interface_main_t *im = &vnm->interface_main;
294 node_index = vec_elt_at_index (im->hw_interfaces,
295 xd->vlib_hw_if_index)->tx_node_index;
297 vlib_error_count (vm, node_index, DPDK_TX_FUNC_ERROR_BAD_RETVAL, 1);
298 clib_warning ("rte_eth_tx_burst[%d]: error %d", xd->device_index,
300 return n_packets; // untransmitted packets
302 ring->tx_tail += (u16) rv;
303 n_packets -= (uint16_t) rv;
305 while (rv && n_packets && (n_retry > 0));
310 static_always_inline void
311 dpdk_prefetch_buffer_by_index (vlib_main_t * vm, u32 bi)
315 b = vlib_get_buffer (vm, bi);
316 mb = rte_mbuf_from_vlib_buffer (b);
317 CLIB_PREFETCH (mb, CLIB_CACHE_LINE_BYTES, LOAD);
318 CLIB_PREFETCH (b, CLIB_CACHE_LINE_BYTES, LOAD);
321 static_always_inline void
322 dpdk_buffer_recycle (vlib_main_t * vm, vlib_node_runtime_t * node,
323 vlib_buffer_t * b, u32 bi, struct rte_mbuf **mbp)
325 dpdk_main_t *dm = &dpdk_main;
326 u32 my_cpu = my_cpu = vm->cpu_index;
327 struct rte_mbuf *mb_new;
329 if (PREDICT_FALSE (b->flags & VLIB_BUFFER_RECYCLE) == 0)
332 mb_new = dpdk_replicate_packet_mb (b);
333 if (PREDICT_FALSE (mb_new == 0))
335 vlib_error_count (vm, node->node_index,
336 DPDK_TX_FUNC_ERROR_REPL_FAIL, 1);
337 b->flags |= VLIB_BUFFER_REPL_FAIL;
342 vec_add1 (dm->recycle[my_cpu], bi);
346 * Transmits the packets on the frame to the interface associated with the
347 * node. It first copies packets on the frame to a tx_vector containing the
348 * rte_mbuf pointers. It then passes this vector to tx_burst_vector_internal
349 * which calls the dpdk tx_burst function.
352 dpdk_interface_tx (vlib_main_t * vm,
353 vlib_node_runtime_t * node, vlib_frame_t * f)
355 dpdk_main_t *dm = &dpdk_main;
356 vnet_interface_output_runtime_t *rd = (void *) node->runtime_data;
357 dpdk_device_t *xd = vec_elt_at_index (dm->devices, rd->dev_instance);
358 u32 n_packets = f->n_vectors;
361 struct rte_mbuf **tx_vector;
363 u16 nb_tx_desc = xd->nb_tx_desc;
370 my_cpu = vm->cpu_index;
374 tx_vector = xd->tx_vectors[queue_id];
375 ring = vec_header (tx_vector, sizeof (*ring));
377 n_on_ring = ring->tx_head - ring->tx_tail;
378 from = vlib_frame_vector_args (f);
380 ASSERT (n_packets <= VLIB_FRAME_SIZE);
382 if (PREDICT_FALSE (n_on_ring + n_packets > nb_tx_desc))
385 * Overflowing the ring should never happen.
386 * If it does then drop the whole frame.
388 vlib_error_count (vm, node->node_index, DPDK_TX_FUNC_ERROR_RING_FULL,
393 u32 bi0 = from[n_packets];
394 vlib_buffer_t *b0 = vlib_get_buffer (vm, bi0);
395 struct rte_mbuf *mb0 = rte_mbuf_from_vlib_buffer (b0);
396 rte_pktmbuf_free (mb0);
401 if (PREDICT_FALSE (dm->tx_pcap_enable))
407 vlib_buffer_t *b0 = vlib_get_buffer (vm, bi0);
408 if (dm->pcap_sw_if_index == 0 ||
409 dm->pcap_sw_if_index == vnet_buffer (b0)->sw_if_index[VLIB_TX])
410 pcap_add_buffer (&dm->pcap_main, vm, bi0, 512);
416 from = vlib_frame_vector_args (f);
418 i = ring->tx_head % nb_tx_desc;
422 u32 bi0, bi1, bi2, bi3;
423 struct rte_mbuf *mb0, *mb1, *mb2, *mb3;
424 vlib_buffer_t *b0, *b1, *b2, *b3;
427 dpdk_prefetch_buffer_by_index (vm, from[4]);
428 dpdk_prefetch_buffer_by_index (vm, from[5]);
429 dpdk_prefetch_buffer_by_index (vm, from[6]);
430 dpdk_prefetch_buffer_by_index (vm, from[7]);
438 b0 = vlib_get_buffer (vm, bi0);
439 b1 = vlib_get_buffer (vm, bi1);
440 b2 = vlib_get_buffer (vm, bi2);
441 b3 = vlib_get_buffer (vm, bi3);
443 or_flags = b0->flags | b1->flags | b2->flags | b3->flags;
445 if (or_flags & VLIB_BUFFER_NEXT_PRESENT)
447 dpdk_validate_rte_mbuf (vm, b0, 1);
448 dpdk_validate_rte_mbuf (vm, b1, 1);
449 dpdk_validate_rte_mbuf (vm, b2, 1);
450 dpdk_validate_rte_mbuf (vm, b3, 1);
454 dpdk_validate_rte_mbuf (vm, b0, 0);
455 dpdk_validate_rte_mbuf (vm, b1, 0);
456 dpdk_validate_rte_mbuf (vm, b2, 0);
457 dpdk_validate_rte_mbuf (vm, b3, 0);
460 mb0 = rte_mbuf_from_vlib_buffer (b0);
461 mb1 = rte_mbuf_from_vlib_buffer (b1);
462 mb2 = rte_mbuf_from_vlib_buffer (b2);
463 mb3 = rte_mbuf_from_vlib_buffer (b3);
465 if (PREDICT_FALSE (or_flags & VLIB_BUFFER_RECYCLE))
467 dpdk_buffer_recycle (vm, node, b0, bi0, &mb0);
468 dpdk_buffer_recycle (vm, node, b1, bi1, &mb1);
469 dpdk_buffer_recycle (vm, node, b2, bi2, &mb2);
470 dpdk_buffer_recycle (vm, node, b3, bi3, &mb3);
472 /* dont enqueue packets if replication failed as they must
473 be sent back to recycle */
474 if (PREDICT_TRUE ((b0->flags & VLIB_BUFFER_REPL_FAIL) == 0))
475 tx_vector[i++ % nb_tx_desc] = mb0;
476 if (PREDICT_TRUE ((b1->flags & VLIB_BUFFER_REPL_FAIL) == 0))
477 tx_vector[i++ % nb_tx_desc] = mb1;
478 if (PREDICT_TRUE ((b2->flags & VLIB_BUFFER_REPL_FAIL) == 0))
479 tx_vector[i++ % nb_tx_desc] = mb2;
480 if (PREDICT_TRUE ((b3->flags & VLIB_BUFFER_REPL_FAIL) == 0))
481 tx_vector[i++ % nb_tx_desc] = mb3;
485 if (PREDICT_FALSE (i + 3 >= nb_tx_desc))
487 tx_vector[i++ % nb_tx_desc] = mb0;
488 tx_vector[i++ % nb_tx_desc] = mb1;
489 tx_vector[i++ % nb_tx_desc] = mb2;
490 tx_vector[i++ % nb_tx_desc] = mb3;
495 tx_vector[i++] = mb0;
496 tx_vector[i++] = mb1;
497 tx_vector[i++] = mb2;
498 tx_vector[i++] = mb3;
503 if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE))
505 if (b0->flags & VLIB_BUFFER_IS_TRACED)
506 dpdk_tx_trace_buffer (dm, node, xd, queue_id, bi0, b0);
507 if (b1->flags & VLIB_BUFFER_IS_TRACED)
508 dpdk_tx_trace_buffer (dm, node, xd, queue_id, bi1, b1);
509 if (b2->flags & VLIB_BUFFER_IS_TRACED)
510 dpdk_tx_trace_buffer (dm, node, xd, queue_id, bi2, b2);
511 if (b3->flags & VLIB_BUFFER_IS_TRACED)
512 dpdk_tx_trace_buffer (dm, node, xd, queue_id, bi3, b3);
520 struct rte_mbuf *mb0;
526 b0 = vlib_get_buffer (vm, bi0);
528 dpdk_validate_rte_mbuf (vm, b0, 1);
530 mb0 = rte_mbuf_from_vlib_buffer (b0);
531 dpdk_buffer_recycle (vm, node, b0, bi0, &mb0);
533 if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE))
534 if (b0->flags & VLIB_BUFFER_IS_TRACED)
535 dpdk_tx_trace_buffer (dm, node, xd, queue_id, bi0, b0);
537 if (PREDICT_TRUE ((b0->flags & VLIB_BUFFER_REPL_FAIL) == 0))
539 tx_vector[i % nb_tx_desc] = mb0;
545 /* account for additional packets in the ring */
546 ring->tx_head += n_packets;
547 n_on_ring = ring->tx_head - ring->tx_tail;
549 /* transmit as many packets as possible */
550 n_packets = tx_burst_vector_internal (vm, xd, tx_vector);
553 * tx_pkts is the number of packets successfully transmitted
554 * This is the number originally on ring minus the number remaining on ring
556 tx_pkts = n_on_ring - n_packets;
559 /* If there is no callback then drop any non-transmitted packets */
560 if (PREDICT_FALSE (n_packets))
562 vlib_simple_counter_main_t *cm;
563 vnet_main_t *vnm = vnet_get_main ();
565 cm = vec_elt_at_index (vnm->interface_main.sw_if_counters,
566 VNET_INTERFACE_COUNTER_TX_ERROR);
568 vlib_increment_simple_counter (cm, my_cpu, xd->vlib_sw_if_index,
571 vlib_error_count (vm, node->node_index, DPDK_TX_FUNC_ERROR_PKT_DROP,
575 rte_pktmbuf_free (tx_vector[ring->tx_tail + n_packets]);
578 /* Reset head/tail to avoid unnecessary wrap */
583 /* Recycle replicated buffers */
584 if (PREDICT_FALSE (vec_len (dm->recycle[my_cpu])))
586 vlib_buffer_free (vm, dm->recycle[my_cpu],
587 vec_len (dm->recycle[my_cpu]));
588 _vec_len (dm->recycle[my_cpu]) = 0;
591 ASSERT (ring->tx_head >= ring->tx_tail);
597 dpdk_clear_hw_interface_counters (u32 instance)
599 dpdk_main_t *dm = &dpdk_main;
600 dpdk_device_t *xd = vec_elt_at_index (dm->devices, instance);
603 * Set the "last_cleared_stats" to the current stats, so that
604 * things appear to clear from a display perspective.
606 dpdk_update_counters (xd, vlib_time_now (dm->vlib_main));
608 clib_memcpy (&xd->last_cleared_stats, &xd->stats, sizeof (xd->stats));
609 clib_memcpy (xd->last_cleared_xstats, xd->xstats,
610 vec_len (xd->last_cleared_xstats) *
611 sizeof (xd->last_cleared_xstats[0]));
615 static clib_error_t *
616 dpdk_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
618 vnet_hw_interface_t *hif = vnet_get_hw_interface (vnm, hw_if_index);
619 uword is_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0;
620 dpdk_main_t *dm = &dpdk_main;
621 dpdk_device_t *xd = vec_elt_at_index (dm->devices, hif->dev_instance);
626 f64 now = vlib_time_now (dm->vlib_main);
628 if ((xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) == 0)
629 rv = rte_eth_dev_start (xd->device_index);
631 if (xd->flags & DPDK_DEVICE_FLAG_PROMISC)
632 rte_eth_promiscuous_enable (xd->device_index);
634 rte_eth_promiscuous_disable (xd->device_index);
636 rte_eth_allmulticast_enable (xd->device_index);
637 xd->flags |= DPDK_DEVICE_FLAG_ADMIN_UP;
638 dpdk_update_counters (xd, now);
639 dpdk_update_link_state (xd, now);
643 xd->flags &= ~DPDK_DEVICE_FLAG_ADMIN_UP;
645 rte_eth_allmulticast_disable (xd->device_index);
646 vnet_hw_interface_set_flags (vnm, xd->vlib_hw_if_index, 0);
647 rte_eth_dev_stop (xd->device_index);
649 /* For bonded interface, stop slave links */
650 if (xd->pmd == VNET_DPDK_PMD_BOND)
653 int nlink = rte_eth_bond_slaves_get (xd->device_index, slink, 16);
656 u8 dpdk_port = slink[--nlink];
657 rte_eth_dev_stop (dpdk_port);
663 clib_warning ("rte_eth_dev_%s error: %d", is_up ? "start" : "stop", rv);
665 return /* no error */ 0;
669 * Dynamically redirect all pkts from a specific interface
670 * to the specified node
673 dpdk_set_interface_next_node (vnet_main_t * vnm, u32 hw_if_index,
676 dpdk_main_t *xm = &dpdk_main;
677 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
678 dpdk_device_t *xd = vec_elt_at_index (xm->devices, hw->dev_instance);
680 /* Shut off redirection */
681 if (node_index == ~0)
683 xd->per_interface_next_index = node_index;
687 xd->per_interface_next_index =
688 vlib_node_add_next (xm->vlib_main, dpdk_input_node.index, node_index);
692 static clib_error_t *
693 dpdk_subif_add_del_function (vnet_main_t * vnm,
695 struct vnet_sw_interface_t *st, int is_add)
697 dpdk_main_t *xm = &dpdk_main;
698 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
699 dpdk_device_t *xd = vec_elt_at_index (xm->devices, hw->dev_instance);
700 vnet_sw_interface_t *t = (vnet_sw_interface_t *) st;
702 u32 prev_subifs = xd->num_subifs;
703 clib_error_t *err = 0;
707 else if (xd->num_subifs)
710 if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
713 /* currently we program VLANS only for IXGBE VF and I40E VF */
714 if ((xd->pmd != VNET_DPDK_PMD_IXGBEVF) && (xd->pmd != VNET_DPDK_PMD_I40EVF))
717 if (t->sub.eth.flags.no_tags == 1)
720 if ((t->sub.eth.flags.one_tag != 1) || (t->sub.eth.flags.exact_match != 1))
722 xd->num_subifs = prev_subifs;
723 err = clib_error_return (0, "unsupported VLAN setup");
727 vlan_offload = rte_eth_dev_get_vlan_offload (xd->device_index);
728 vlan_offload |= ETH_VLAN_FILTER_OFFLOAD;
730 if ((r = rte_eth_dev_set_vlan_offload (xd->device_index, vlan_offload)))
732 xd->num_subifs = prev_subifs;
733 err = clib_error_return (0, "rte_eth_dev_set_vlan_offload[%d]: err %d",
734 xd->device_index, r);
740 rte_eth_dev_vlan_filter (xd->device_index, t->sub.eth.outer_vlan_id,
743 xd->num_subifs = prev_subifs;
744 err = clib_error_return (0, "rte_eth_dev_vlan_filter[%d]: err %d",
745 xd->device_index, r);
751 xd->flags |= DPDK_DEVICE_FLAG_HAVE_SUBIF;
753 xd->flags &= ~DPDK_DEVICE_FLAG_HAVE_SUBIF;
759 VNET_DEVICE_CLASS (dpdk_device_class) = {
761 .tx_function = dpdk_interface_tx,
762 .tx_function_n_errors = DPDK_TX_FUNC_N_ERROR,
763 .tx_function_error_strings = dpdk_tx_func_error_strings,
764 .format_device_name = format_dpdk_device_name,
765 .format_device = format_dpdk_device,
766 .format_tx_trace = format_dpdk_tx_dma_trace,
767 .clear_counters = dpdk_clear_hw_interface_counters,
768 .admin_up_down_function = dpdk_interface_admin_up_down,
769 .subif_add_del_function = dpdk_subif_add_del_function,
770 .rx_redirect_to_node = dpdk_set_interface_next_node,
771 .no_flatten_output_chains = 1,
772 .mac_addr_change_function = dpdk_set_mac_address,
775 VLIB_DEVICE_TX_FUNCTION_MULTIARCH (dpdk_device_class, dpdk_interface_tx)
778 #define UP_DOWN_FLAG_EVENT 1
781 admin_up_down_process (vlib_main_t * vm,
782 vlib_node_runtime_t * rt, vlib_frame_t * f)
784 clib_error_t *error = 0;
786 uword *event_data = 0;
792 vlib_process_wait_for_event (vm);
794 event_type = vlib_process_get_events (vm, &event_data);
796 dpdk_main.admin_up_down_in_progress = 1;
800 case UP_DOWN_FLAG_EVENT:
802 if (vec_len (event_data) == 2)
804 sw_if_index = event_data[0];
805 flags = event_data[1];
807 vnet_sw_interface_set_flags (vnet_get_main (), sw_if_index,
809 clib_error_report (error);
815 vec_reset_length (event_data);
817 dpdk_main.admin_up_down_in_progress = 0;
820 return 0; /* or not */
824 VLIB_REGISTER_NODE (admin_up_down_process_node,static) = {
825 .function = admin_up_down_process,
826 .type = VLIB_NODE_TYPE_PROCESS,
827 .name = "admin-up-down-process",
828 .process_log2_n_stack_bytes = 17, // 256KB
833 * fd.io coding-style-patch-verification: ON
836 * eval: (c-set-style "gnu")