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 *first_mb = 0, *new_mb, *pkt_mb, **prev_mb_next = 0;
93 u8 nb_segs, nb_segs_left;
95 unsigned socket_id = rte_socket_id ();
97 ASSERT (bm->pktmbuf_pools[socket_id]);
98 pkt_mb = rte_mbuf_from_vlib_buffer (b);
99 nb_segs = pkt_mb->nb_segs;
100 for (nb_segs_left = nb_segs; nb_segs_left; nb_segs_left--)
102 if (PREDICT_FALSE (pkt_mb == 0))
104 clib_warning ("Missing %d mbuf chain segment(s): "
105 "(nb_segs = %d, nb_segs_left = %d)!",
106 nb_segs - nb_segs_left, nb_segs, nb_segs_left);
108 rte_pktmbuf_free (first_mb);
111 new_mb = rte_pktmbuf_alloc (bm->pktmbuf_pools[socket_id]);
112 if (PREDICT_FALSE (new_mb == 0))
115 rte_pktmbuf_free (first_mb);
120 * Copy packet info into 1st segment.
125 rte_pktmbuf_pkt_len (first_mb) = pkt_mb->pkt_len;
126 first_mb->nb_segs = pkt_mb->nb_segs;
127 first_mb->port = pkt_mb->port;
128 #ifdef DAW_FIXME // TX Offload support TBD
129 first_mb->vlan_macip = pkt_mb->vlan_macip;
130 first_mb->hash = pkt_mb->hash;
131 first_mb->ol_flags = pkt_mb->ol_flags
136 ASSERT (prev_mb_next != 0);
137 *prev_mb_next = new_mb;
141 * Copy packet segment data into new mbuf segment.
143 rte_pktmbuf_data_len (new_mb) = pkt_mb->data_len;
144 copy_bytes = pkt_mb->data_len + RTE_PKTMBUF_HEADROOM;
145 ASSERT (copy_bytes <= pkt_mb->buf_len);
146 clib_memcpy (new_mb->buf_addr, pkt_mb->buf_addr, copy_bytes);
148 prev_mb_next = &new_mb->next;
149 pkt_mb = pkt_mb->next;
152 ASSERT (pkt_mb == 0);
153 __rte_mbuf_sanity_check (first_mb, 1);
159 dpdk_zerocopy_replicate_packet_mb (vlib_buffer_t * b)
161 vlib_main_t *vm = vlib_get_main ();
162 vlib_buffer_main_t *bm = vm->buffer_main;
163 struct rte_mbuf *first_mb = 0, *new_mb, *pkt_mb, **prev_mb_next = 0;
164 u8 nb_segs, nb_segs_left;
165 unsigned socket_id = rte_socket_id ();
167 ASSERT (bm->pktmbuf_pools[socket_id]);
168 pkt_mb = rte_mbuf_from_vlib_buffer (b);
169 nb_segs = pkt_mb->nb_segs;
170 for (nb_segs_left = nb_segs; nb_segs_left; nb_segs_left--)
172 if (PREDICT_FALSE (pkt_mb == 0))
174 clib_warning ("Missing %d mbuf chain segment(s): "
175 "(nb_segs = %d, nb_segs_left = %d)!",
176 nb_segs - nb_segs_left, nb_segs, nb_segs_left);
178 rte_pktmbuf_free (first_mb);
181 new_mb = rte_pktmbuf_clone (pkt_mb, bm->pktmbuf_pools[socket_id]);
182 if (PREDICT_FALSE (new_mb == 0))
185 rte_pktmbuf_free (first_mb);
190 * Copy packet info into 1st segment.
195 rte_pktmbuf_pkt_len (first_mb) = pkt_mb->pkt_len;
196 first_mb->nb_segs = pkt_mb->nb_segs;
197 first_mb->port = pkt_mb->port;
198 #ifdef DAW_FIXME // TX Offload support TBD
199 first_mb->vlan_macip = pkt_mb->vlan_macip;
200 first_mb->hash = pkt_mb->hash;
201 first_mb->ol_flags = pkt_mb->ol_flags
206 ASSERT (prev_mb_next != 0);
207 *prev_mb_next = new_mb;
211 * Copy packet segment data into new mbuf segment.
213 rte_pktmbuf_data_len (new_mb) = pkt_mb->data_len;
215 prev_mb_next = &new_mb->next;
216 pkt_mb = pkt_mb->next;
219 ASSERT (pkt_mb == 0);
220 __rte_mbuf_sanity_check (first_mb, 1);
228 dpdk_tx_trace_buffer (dpdk_main_t * dm,
229 vlib_node_runtime_t * node,
231 u16 queue_id, u32 buffer_index, vlib_buffer_t * buffer)
233 vlib_main_t *vm = vlib_get_main ();
234 dpdk_tx_dma_trace_t *t0;
237 mb = rte_mbuf_from_vlib_buffer (buffer);
239 t0 = vlib_add_trace (vm, node, buffer, sizeof (t0[0]));
240 t0->queue_index = queue_id;
241 t0->device_index = xd->device_index;
242 t0->buffer_index = buffer_index;
243 clib_memcpy (&t0->mb, mb, sizeof (t0->mb));
244 clib_memcpy (&t0->buffer, buffer,
245 sizeof (buffer[0]) - sizeof (buffer->pre_data));
246 clib_memcpy (t0->buffer.pre_data, buffer->data + buffer->current_data,
247 sizeof (t0->buffer.pre_data));
251 * This function calls the dpdk's tx_burst function to transmit the packets
252 * on the tx_vector. It manages a lock per-device if the device does not
253 * support multiple queues. It returns the number of packets untransmitted
254 * on the tx_vector. If all packets are transmitted (the normal case), the
255 * function returns 0.
257 * The function assumes there is at least one packet on the tx_vector.
260 u32 tx_burst_vector_internal (vlib_main_t * vm,
262 struct rte_mbuf **tx_vector)
264 dpdk_main_t *dm = &dpdk_main;
273 ring = vec_header (tx_vector, sizeof (*ring));
275 n_packets = ring->tx_head - ring->tx_tail;
277 tx_head = ring->tx_head % xd->nb_tx_desc;
280 * Ensure rte_eth_tx_burst is not called with 0 packets, which can lead to
281 * unpredictable results.
283 ASSERT (n_packets > 0);
286 * Check for tx_vector overflow. If this fails it is a system configuration
287 * error. The ring should be sized big enough to handle the largest un-flowed
288 * off burst from a traffic manager. A larger size also helps performance
289 * a bit because it decreases the probability of having to issue two tx_burst
290 * calls due to a ring wrap.
292 ASSERT (n_packets < xd->nb_tx_desc);
293 ASSERT (ring->tx_tail == 0);
296 queue_id = vm->cpu_index;
300 /* start the burst at the tail */
301 tx_tail = ring->tx_tail % xd->nb_tx_desc;
304 * This device only supports one TX queue,
305 * and we're running multi-threaded...
307 if (PREDICT_FALSE (xd->lockp != 0))
309 queue_id = queue_id % xd->tx_q_used;
310 while (__sync_lock_test_and_set (xd->lockp[queue_id], 1))
312 queue_id = (queue_id + 1) % xd->tx_q_used;
315 if (PREDICT_FALSE (xd->flags & DPDK_DEVICE_FLAG_HQOS)) /* HQoS ON */
317 /* no wrap, transmit in one burst */
318 dpdk_device_hqos_per_worker_thread_t *hqos =
319 &xd->hqos_wt[vm->cpu_index];
321 dpdk_hqos_metadata_set (hqos,
322 &tx_vector[tx_tail], tx_head - tx_tail);
323 rv = rte_ring_sp_enqueue_burst (hqos->swq,
324 (void **) &tx_vector[tx_tail],
325 (uint16_t) (tx_head - tx_tail));
327 else if (PREDICT_TRUE (xd->flags & DPDK_DEVICE_FLAG_PMD))
329 /* no wrap, transmit in one burst */
330 rv = rte_eth_tx_burst (xd->device_index,
333 (uint16_t) (tx_head - tx_tail));
341 if (PREDICT_FALSE (xd->lockp != 0))
342 *xd->lockp[queue_id] = 0;
344 if (PREDICT_FALSE (rv < 0))
346 // emit non-fatal message, bump counter
347 vnet_main_t *vnm = dm->vnet_main;
348 vnet_interface_main_t *im = &vnm->interface_main;
351 node_index = vec_elt_at_index (im->hw_interfaces,
352 xd->vlib_hw_if_index)->tx_node_index;
354 vlib_error_count (vm, node_index, DPDK_TX_FUNC_ERROR_BAD_RETVAL, 1);
355 clib_warning ("rte_eth_tx_burst[%d]: error %d", xd->device_index,
357 return n_packets; // untransmitted packets
359 ring->tx_tail += (u16) rv;
360 n_packets -= (uint16_t) rv;
362 while (rv && n_packets && (n_retry > 0));
368 * Transmits the packets on the frame to the interface associated with the
369 * node. It first copies packets on the frame to a tx_vector containing the
370 * rte_mbuf pointers. It then passes this vector to tx_burst_vector_internal
371 * which calls the dpdk tx_burst function.
374 dpdk_interface_tx (vlib_main_t * vm,
375 vlib_node_runtime_t * node, vlib_frame_t * f)
377 dpdk_main_t *dm = &dpdk_main;
378 vnet_interface_output_runtime_t *rd = (void *) node->runtime_data;
379 dpdk_device_t *xd = vec_elt_at_index (dm->devices, rd->dev_instance);
380 u32 n_packets = f->n_vectors;
383 struct rte_mbuf **tx_vector;
391 my_cpu = vm->cpu_index;
395 tx_vector = xd->tx_vectors[queue_id];
396 ring = vec_header (tx_vector, sizeof (*ring));
398 n_on_ring = ring->tx_head - ring->tx_tail;
399 from = vlib_frame_vector_args (f);
401 ASSERT (n_packets <= VLIB_FRAME_SIZE);
403 if (PREDICT_FALSE (n_on_ring + n_packets > xd->nb_tx_desc))
406 * Overflowing the ring should never happen.
407 * If it does then drop the whole frame.
409 vlib_error_count (vm, node->node_index, DPDK_TX_FUNC_ERROR_RING_FULL,
414 u32 bi0 = from[n_packets];
415 vlib_buffer_t *b0 = vlib_get_buffer (vm, bi0);
416 struct rte_mbuf *mb0 = rte_mbuf_from_vlib_buffer (b0);
417 rte_pktmbuf_free (mb0);
422 if (PREDICT_FALSE (dm->tx_pcap_enable))
428 vlib_buffer_t *b0 = vlib_get_buffer (vm, bi0);
429 if (dm->pcap_sw_if_index == 0 ||
430 dm->pcap_sw_if_index == vnet_buffer (b0)->sw_if_index[VLIB_TX])
431 pcap_add_buffer (&dm->pcap_main, vm, bi0, 512);
437 from = vlib_frame_vector_args (f);
439 i = ring->tx_head % xd->nb_tx_desc;
445 struct rte_mbuf *mb0, *mb1;
446 struct rte_mbuf *prefmb0, *prefmb1;
447 vlib_buffer_t *b0, *b1;
448 vlib_buffer_t *pref0, *pref1;
450 u16 new_data_len0, new_data_len1;
451 u16 new_pkt_len0, new_pkt_len1;
456 pref0 = vlib_get_buffer (vm, pi0);
457 pref1 = vlib_get_buffer (vm, pi1);
459 prefmb0 = rte_mbuf_from_vlib_buffer (pref0);
460 prefmb1 = rte_mbuf_from_vlib_buffer (pref1);
462 CLIB_PREFETCH (prefmb0, CLIB_CACHE_LINE_BYTES, LOAD);
463 CLIB_PREFETCH (pref0, CLIB_CACHE_LINE_BYTES, LOAD);
464 CLIB_PREFETCH (prefmb1, CLIB_CACHE_LINE_BYTES, LOAD);
465 CLIB_PREFETCH (pref1, CLIB_CACHE_LINE_BYTES, LOAD);
471 b0 = vlib_get_buffer (vm, bi0);
472 b1 = vlib_get_buffer (vm, bi1);
474 mb0 = rte_mbuf_from_vlib_buffer (b0);
475 mb1 = rte_mbuf_from_vlib_buffer (b1);
477 any_clone = (b0->flags & VLIB_BUFFER_RECYCLE)
478 | (b1->flags & VLIB_BUFFER_RECYCLE);
479 if (PREDICT_FALSE (any_clone != 0))
481 if (PREDICT_FALSE ((b0->flags & VLIB_BUFFER_RECYCLE) != 0))
483 struct rte_mbuf *mb0_new = dpdk_replicate_packet_mb (b0);
484 if (PREDICT_FALSE (mb0_new == 0))
486 vlib_error_count (vm, node->node_index,
487 DPDK_TX_FUNC_ERROR_REPL_FAIL, 1);
488 b0->flags |= VLIB_BUFFER_REPL_FAIL;
492 vec_add1 (dm->recycle[my_cpu], bi0);
494 if (PREDICT_FALSE ((b1->flags & VLIB_BUFFER_RECYCLE) != 0))
496 struct rte_mbuf *mb1_new = dpdk_replicate_packet_mb (b1);
497 if (PREDICT_FALSE (mb1_new == 0))
499 vlib_error_count (vm, node->node_index,
500 DPDK_TX_FUNC_ERROR_REPL_FAIL, 1);
501 b1->flags |= VLIB_BUFFER_REPL_FAIL;
505 vec_add1 (dm->recycle[my_cpu], bi1);
509 delta0 = PREDICT_FALSE (b0->flags & VLIB_BUFFER_REPL_FAIL) ? 0 :
510 vlib_buffer_length_in_chain (vm, b0) - (i16) mb0->pkt_len;
511 delta1 = PREDICT_FALSE (b1->flags & VLIB_BUFFER_REPL_FAIL) ? 0 :
512 vlib_buffer_length_in_chain (vm, b1) - (i16) mb1->pkt_len;
514 new_data_len0 = (u16) ((i16) mb0->data_len + delta0);
515 new_data_len1 = (u16) ((i16) mb1->data_len + delta1);
516 new_pkt_len0 = (u16) ((i16) mb0->pkt_len + delta0);
517 new_pkt_len1 = (u16) ((i16) mb1->pkt_len + delta1);
519 b0->current_length = new_data_len0;
520 b1->current_length = new_data_len1;
521 mb0->data_len = new_data_len0;
522 mb1->data_len = new_data_len1;
523 mb0->pkt_len = new_pkt_len0;
524 mb1->pkt_len = new_pkt_len1;
526 mb0->data_off = (PREDICT_FALSE (b0->flags & VLIB_BUFFER_REPL_FAIL)) ?
527 mb0->data_off : (u16) (RTE_PKTMBUF_HEADROOM + b0->current_data);
528 mb1->data_off = (PREDICT_FALSE (b1->flags & VLIB_BUFFER_REPL_FAIL)) ?
529 mb1->data_off : (u16) (RTE_PKTMBUF_HEADROOM + b1->current_data);
531 if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE))
533 if (b0->flags & VLIB_BUFFER_IS_TRACED)
534 dpdk_tx_trace_buffer (dm, node, xd, queue_id, bi0, b0);
535 if (b1->flags & VLIB_BUFFER_IS_TRACED)
536 dpdk_tx_trace_buffer (dm, node, xd, queue_id, bi1, b1);
539 if (PREDICT_TRUE (any_clone == 0))
541 tx_vector[i % xd->nb_tx_desc] = mb0;
543 tx_vector[i % xd->nb_tx_desc] = mb1;
548 /* cloning was done, need to check for failure */
549 if (PREDICT_TRUE ((b0->flags & VLIB_BUFFER_REPL_FAIL) == 0))
551 tx_vector[i % xd->nb_tx_desc] = mb0;
554 if (PREDICT_TRUE ((b1->flags & VLIB_BUFFER_REPL_FAIL) == 0))
556 tx_vector[i % xd->nb_tx_desc] = mb1;
566 struct rte_mbuf *mb0;
575 b0 = vlib_get_buffer (vm, bi0);
577 mb0 = rte_mbuf_from_vlib_buffer (b0);
578 if (PREDICT_FALSE ((b0->flags & VLIB_BUFFER_RECYCLE) != 0))
580 struct rte_mbuf *mb0_new = dpdk_replicate_packet_mb (b0);
581 if (PREDICT_FALSE (mb0_new == 0))
583 vlib_error_count (vm, node->node_index,
584 DPDK_TX_FUNC_ERROR_REPL_FAIL, 1);
585 b0->flags |= VLIB_BUFFER_REPL_FAIL;
589 vec_add1 (dm->recycle[my_cpu], bi0);
592 delta0 = PREDICT_FALSE (b0->flags & VLIB_BUFFER_REPL_FAIL) ? 0 :
593 vlib_buffer_length_in_chain (vm, b0) - (i16) mb0->pkt_len;
595 new_data_len0 = (u16) ((i16) mb0->data_len + delta0);
596 new_pkt_len0 = (u16) ((i16) mb0->pkt_len + delta0);
598 b0->current_length = new_data_len0;
599 mb0->data_len = new_data_len0;
600 mb0->pkt_len = new_pkt_len0;
601 mb0->data_off = (PREDICT_FALSE (b0->flags & VLIB_BUFFER_REPL_FAIL)) ?
602 mb0->data_off : (u16) (RTE_PKTMBUF_HEADROOM + b0->current_data);
604 if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE))
605 if (b0->flags & VLIB_BUFFER_IS_TRACED)
606 dpdk_tx_trace_buffer (dm, node, xd, queue_id, bi0, b0);
608 if (PREDICT_TRUE ((b0->flags & VLIB_BUFFER_REPL_FAIL) == 0))
610 tx_vector[i % xd->nb_tx_desc] = mb0;
616 /* account for additional packets in the ring */
617 ring->tx_head += n_packets;
618 n_on_ring = ring->tx_head - ring->tx_tail;
620 /* transmit as many packets as possible */
621 n_packets = tx_burst_vector_internal (vm, xd, tx_vector);
624 * tx_pkts is the number of packets successfully transmitted
625 * This is the number originally on ring minus the number remaining on ring
627 tx_pkts = n_on_ring - n_packets;
630 /* If there is no callback then drop any non-transmitted packets */
631 if (PREDICT_FALSE (n_packets))
633 vlib_simple_counter_main_t *cm;
634 vnet_main_t *vnm = vnet_get_main ();
636 cm = vec_elt_at_index (vnm->interface_main.sw_if_counters,
637 VNET_INTERFACE_COUNTER_TX_ERROR);
639 vlib_increment_simple_counter (cm, my_cpu, xd->vlib_sw_if_index,
642 vlib_error_count (vm, node->node_index, DPDK_TX_FUNC_ERROR_PKT_DROP,
646 rte_pktmbuf_free (tx_vector[ring->tx_tail + n_packets]);
649 /* Reset head/tail to avoid unnecessary wrap */
654 /* Recycle replicated buffers */
655 if (PREDICT_FALSE (vec_len (dm->recycle[my_cpu])))
657 vlib_buffer_free (vm, dm->recycle[my_cpu],
658 vec_len (dm->recycle[my_cpu]));
659 _vec_len (dm->recycle[my_cpu]) = 0;
662 ASSERT (ring->tx_head >= ring->tx_tail);
668 dpdk_clear_hw_interface_counters (u32 instance)
670 dpdk_main_t *dm = &dpdk_main;
671 dpdk_device_t *xd = vec_elt_at_index (dm->devices, instance);
674 * Set the "last_cleared_stats" to the current stats, so that
675 * things appear to clear from a display perspective.
677 dpdk_update_counters (xd, vlib_time_now (dm->vlib_main));
679 clib_memcpy (&xd->last_cleared_stats, &xd->stats, sizeof (xd->stats));
680 clib_memcpy (xd->last_cleared_xstats, xd->xstats,
681 vec_len (xd->last_cleared_xstats) *
682 sizeof (xd->last_cleared_xstats[0]));
686 static clib_error_t *
687 dpdk_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
689 vnet_hw_interface_t *hif = vnet_get_hw_interface (vnm, hw_if_index);
690 uword is_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0;
691 dpdk_main_t *dm = &dpdk_main;
692 dpdk_device_t *xd = vec_elt_at_index (dm->devices, hif->dev_instance);
697 f64 now = vlib_time_now (dm->vlib_main);
699 if ((xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) == 0)
700 rv = rte_eth_dev_start (xd->device_index);
702 if (xd->flags & DPDK_DEVICE_FLAG_PROMISC)
703 rte_eth_promiscuous_enable (xd->device_index);
705 rte_eth_promiscuous_disable (xd->device_index);
707 rte_eth_allmulticast_enable (xd->device_index);
708 xd->flags |= DPDK_DEVICE_FLAG_ADMIN_UP;
709 dpdk_update_counters (xd, now);
710 dpdk_update_link_state (xd, now);
714 xd->flags &= ~DPDK_DEVICE_FLAG_ADMIN_UP;
716 rte_eth_allmulticast_disable (xd->device_index);
717 vnet_hw_interface_set_flags (vnm, xd->vlib_hw_if_index, 0);
718 rte_eth_dev_stop (xd->device_index);
720 /* For bonded interface, stop slave links */
721 if (xd->pmd == VNET_DPDK_PMD_BOND)
724 int nlink = rte_eth_bond_slaves_get (xd->device_index, slink, 16);
727 u8 dpdk_port = slink[--nlink];
728 rte_eth_dev_stop (dpdk_port);
734 clib_warning ("rte_eth_dev_%s error: %d", is_up ? "start" : "stop", rv);
736 return /* no error */ 0;
740 * Dynamically redirect all pkts from a specific interface
741 * to the specified node
744 dpdk_set_interface_next_node (vnet_main_t * vnm, u32 hw_if_index,
747 dpdk_main_t *xm = &dpdk_main;
748 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
749 dpdk_device_t *xd = vec_elt_at_index (xm->devices, hw->dev_instance);
751 /* Shut off redirection */
752 if (node_index == ~0)
754 xd->per_interface_next_index = node_index;
758 xd->per_interface_next_index =
759 vlib_node_add_next (xm->vlib_main, dpdk_input_node.index, node_index);
763 static clib_error_t *
764 dpdk_subif_add_del_function (vnet_main_t * vnm,
766 struct vnet_sw_interface_t *st, int is_add)
768 dpdk_main_t *xm = &dpdk_main;
769 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
770 dpdk_device_t *xd = vec_elt_at_index (xm->devices, hw->dev_instance);
771 vnet_sw_interface_t *t = (vnet_sw_interface_t *) st;
773 u32 prev_subifs = xd->num_subifs;
774 clib_error_t *err = 0;
778 else if (xd->num_subifs)
781 if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
784 /* currently we program VLANS only for IXGBE VF and I40E VF */
785 if ((xd->pmd != VNET_DPDK_PMD_IXGBEVF) && (xd->pmd != VNET_DPDK_PMD_I40EVF))
788 if (t->sub.eth.flags.no_tags == 1)
791 if ((t->sub.eth.flags.one_tag != 1) || (t->sub.eth.flags.exact_match != 1))
793 xd->num_subifs = prev_subifs;
794 err = clib_error_return (0, "unsupported VLAN setup");
798 vlan_offload = rte_eth_dev_get_vlan_offload (xd->device_index);
799 vlan_offload |= ETH_VLAN_FILTER_OFFLOAD;
801 if ((r = rte_eth_dev_set_vlan_offload (xd->device_index, vlan_offload)))
803 xd->num_subifs = prev_subifs;
804 err = clib_error_return (0, "rte_eth_dev_set_vlan_offload[%d]: err %d",
805 xd->device_index, r);
811 rte_eth_dev_vlan_filter (xd->device_index, t->sub.eth.outer_vlan_id,
814 xd->num_subifs = prev_subifs;
815 err = clib_error_return (0, "rte_eth_dev_vlan_filter[%d]: err %d",
816 xd->device_index, r);
822 xd->flags |= DPDK_DEVICE_FLAG_HAVE_SUBIF;
824 xd->flags &= ~DPDK_DEVICE_FLAG_HAVE_SUBIF;
830 VNET_DEVICE_CLASS (dpdk_device_class) = {
832 .tx_function = dpdk_interface_tx,
833 .tx_function_n_errors = DPDK_TX_FUNC_N_ERROR,
834 .tx_function_error_strings = dpdk_tx_func_error_strings,
835 .format_device_name = format_dpdk_device_name,
836 .format_device = format_dpdk_device,
837 .format_tx_trace = format_dpdk_tx_dma_trace,
838 .clear_counters = dpdk_clear_hw_interface_counters,
839 .admin_up_down_function = dpdk_interface_admin_up_down,
840 .subif_add_del_function = dpdk_subif_add_del_function,
841 .rx_redirect_to_node = dpdk_set_interface_next_node,
842 .no_flatten_output_chains = 1,
843 .mac_addr_change_function = dpdk_set_mac_address,
846 VLIB_DEVICE_TX_FUNCTION_MULTIARCH (dpdk_device_class, dpdk_interface_tx)
849 #define UP_DOWN_FLAG_EVENT 1
852 admin_up_down_process (vlib_main_t * vm,
853 vlib_node_runtime_t * rt, vlib_frame_t * f)
855 clib_error_t *error = 0;
857 uword *event_data = 0;
863 vlib_process_wait_for_event (vm);
865 event_type = vlib_process_get_events (vm, &event_data);
867 dpdk_main.admin_up_down_in_progress = 1;
871 case UP_DOWN_FLAG_EVENT:
873 if (vec_len (event_data) == 2)
875 sw_if_index = event_data[0];
876 flags = event_data[1];
878 vnet_sw_interface_set_flags (vnet_get_main (), sw_if_index,
880 clib_error_report (error);
886 vec_reset_length (event_data);
888 dpdk_main.admin_up_down_in_progress = 0;
891 return 0; /* or not */
895 VLIB_REGISTER_NODE (admin_up_down_process_node,static) = {
896 .function = admin_up_down_process,
897 .type = VLIB_NODE_TYPE_PROCESS,
898 .name = "admin-up-down-process",
899 .process_log2_n_stack_bytes = 17, // 256KB
904 * fd.io coding-style-patch-verification: ON
907 * eval: (c-set-style "gnu")