FD.io VPP  v19.04.2-12-g66b1689
Vector Packet Processing
device.c
Go to the documentation of this file.
1 /*
2  *------------------------------------------------------------------
3  * Copyright (c) 2017 Cisco and/or its affiliates.
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at:
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  *------------------------------------------------------------------
16  */
17 
18 #define _GNU_SOURCE
19 #include <stdint.h>
20 #include <vnet/ethernet/ethernet.h>
21 #include <vnet/ip/ip4_packet.h>
22 #include <vnet/ip/ip6_packet.h>
24 #include <vnet/bonding/node.h>
25 #include <vppinfra/lb_hash_hash.h>
26 #include <vnet/ip/ip.h>
28 
29 #define foreach_bond_tx_error \
30  _(NONE, "no error") \
31  _(IF_DOWN, "interface down") \
32  _(NO_SLAVE, "no slave")
33 
34 typedef enum
35 {
36 #define _(f,s) BOND_TX_ERROR_##f,
38 #undef _
41 
42 static char *bond_tx_error_strings[] = {
43 #define _(n,s) s,
45 #undef _
46 };
47 
48 static u8 *
49 format_bond_tx_trace (u8 * s, va_list * args)
50 {
51  CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
52  CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
53  bond_packet_trace_t *t = va_arg (*args, bond_packet_trace_t *);
54  vnet_hw_interface_t *hw, *hw1;
55  vnet_main_t *vnm = vnet_get_main ();
56 
59  s = format (s, "src %U, dst %U, %s -> %s",
62  hw->name, hw1->name);
63 
64  return s;
65 }
66 
67 #ifndef CLIB_MARCH_VARIANT
68 u8 *
69 format_bond_interface_name (u8 * s, va_list * args)
70 {
71  u32 dev_instance = va_arg (*args, u32);
72  bond_main_t *bm = &bond_main;
73  bond_if_t *bif = pool_elt_at_index (bm->interfaces, dev_instance);
74 
75  s = format (s, "BondEthernet%lu", bif->id);
76 
77  return s;
78 }
79 #endif
80 
81 static __clib_unused clib_error_t *
83  struct vnet_hw_interface_t *bif_hw,
84  i32 l2_if_adjust)
85 {
86  bond_if_t *bif;
88  struct vnet_hw_interface_t *sif_hw;
89 
91  if (!bif)
92  return 0;
93 
94  if ((bif_hw->l2_if_count == 1) && (l2_if_adjust == 1))
95  {
96  /* Just added first L2 interface on this port */
97  vec_foreach (sw_if_index, bif->slaves)
98  {
99  sif_hw = vnet_get_sup_hw_interface (vnm, *sw_if_index);
100  ethernet_set_flags (vnm, sif_hw->hw_if_index,
102 
103  /* ensure all packets go to ethernet-input */
104  ethernet_set_rx_redirect (vnm, sif_hw, 1);
105  }
106  }
107  else if ((bif_hw->l2_if_count == 0) && (l2_if_adjust == -1))
108  {
109  /* Just removed last L2 subinterface on this port */
110  vec_foreach (sw_if_index, bif->slaves)
111  {
112  sif_hw = vnet_get_sup_hw_interface (vnm, *sw_if_index);
113 
114  /* Allow ip packets to go directly to ip4-input etc */
115  ethernet_set_rx_redirect (vnm, sif_hw, 0);
116  }
117  }
118 
119  return 0;
120 }
121 
122 static __clib_unused clib_error_t *
124  struct vnet_sw_interface_t *st, int is_add)
125 {
126  /* Nothing for now */
127  return 0;
128 }
129 
130 static clib_error_t *
132 {
133  vnet_hw_interface_t *hif = vnet_get_hw_interface (vnm, hw_if_index);
134  uword is_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0;
135  bond_main_t *bm = &bond_main;
137 
138  bif->admin_up = is_up;
139  if (is_up && vec_len (bif->active_slaves))
142  return 0;
143 }
144 
147 {
148  u32 idx = ptd->per_port_queue[port].n_buffers++;
149  ptd->per_port_queue[port].buffers[idx] = bi;
150 }
151 
154  bond_if_t * bif, vlib_buffer_t * b0, uword n_slaves)
155 {
156  bond_main_t *bm = &bond_main;
157  vlib_buffer_t *c0;
158  int port;
160  u16 thread_index = vm->thread_index;
162  thread_index);
163 
164  for (port = 1; port < n_slaves; port++)
165  {
166  sw_if_index = *vec_elt_at_index (bif->active_slaves, port);
167  c0 = vlib_buffer_copy (vm, b0);
168  if (PREDICT_TRUE (c0 != 0))
169  {
170  vnet_buffer (c0)->sw_if_index[VLIB_TX] = sw_if_index;
171  bond_tx_add_to_queue (ptd, port, vlib_get_buffer_index (vm, c0));
172  }
173  }
174 
175  return 0;
176 }
177 
180  bond_if_t * bif, vlib_buffer_t * b0, uword n_slaves)
181 {
183  u64 *dst = (u64 *) & eth->dst_address[0];
184  u64 a = clib_mem_unaligned (dst, u64);
185  u32 *src = (u32 *) & eth->src_address[2];
186  u32 b = clib_mem_unaligned (src, u32);
187 
188  return lb_hash_hash_2_tuples (a, b);
189 }
190 
193 {
194  u16 *ethertype_p;
196 
197  if (!ethernet_frame_is_tagged (clib_net_to_host_u16 (eth->type)))
198  {
199  ethertype_p = &eth->type;
200  }
201  else
202  {
203  vlan = (void *) (eth + 1);
204  ethertype_p = &vlan->type;
205  if (*ethertype_p == ntohs (ETHERNET_TYPE_VLAN))
206  {
207  vlan++;
208  ethertype_p = &vlan->type;
209  }
210  }
211  return ethertype_p;
212 }
213 
216  bond_if_t * bif, vlib_buffer_t * b0, uword n_slaves)
217 {
219  u8 ip_version;
220  ip4_header_t *ip4;
221  u16 ethertype, *ethertype_p;
222  u32 *mac1, *mac2, *mac3;
223 
224  ethertype_p = bond_locate_ethertype (eth);
225  ethertype = clib_mem_unaligned (ethertype_p, u16);
226 
227  if ((ethertype != htons (ETHERNET_TYPE_IP4)) &&
228  (ethertype != htons (ETHERNET_TYPE_IP6)))
229  return (bond_lb_l2 (vm, node, bif, b0, n_slaves));
230 
231  ip4 = (ip4_header_t *) (ethertype_p + 1);
232  ip_version = (ip4->ip_version_and_header_length >> 4);
233 
234  if (ip_version == 0x4)
235  {
236  u32 a, c;
237 
238  mac1 = (u32 *) & eth->dst_address[0];
239  mac2 = (u32 *) & eth->dst_address[4];
240  mac3 = (u32 *) & eth->src_address[2];
241 
242  a = clib_mem_unaligned (mac1, u32) ^ clib_mem_unaligned (mac2, u32) ^
243  clib_mem_unaligned (mac3, u32);
244  c =
246  a);
247  return c;
248  }
249  else if (ip_version == 0x6)
250  {
251  u64 a;
252  u32 c;
253  ip6_header_t *ip6 = (ip6_header_t *) (eth + 1);
254 
255  mac1 = (u32 *) & eth->dst_address[0];
256  mac2 = (u32 *) & eth->dst_address[4];
257  mac3 = (u32 *) & eth->src_address[2];
258 
259  a = clib_mem_unaligned (mac1, u32) ^ clib_mem_unaligned (mac2, u32) ^
260  clib_mem_unaligned (mac3, u32);
261  c =
263  (&ip6->src_address.as_uword[0], uword),
265  uword),
267  uword),
269  uword), a);
270  return c;
271  }
272  return (bond_lb_l2 (vm, node, bif, b0, n_slaves));
273 }
274 
277  bond_if_t * bif, vlib_buffer_t * b0, uword n_slaves)
278 {
280  u8 ip_version;
281  uword is_tcp_udp;
282  ip4_header_t *ip4;
283  u16 ethertype, *ethertype_p;
284 
285  ethertype_p = bond_locate_ethertype (eth);
286  ethertype = clib_mem_unaligned (ethertype_p, u16);
287 
288  if ((ethertype != htons (ETHERNET_TYPE_IP4)) &&
289  (ethertype != htons (ETHERNET_TYPE_IP6)))
290  return (bond_lb_l2 (vm, node, bif, b0, n_slaves));
291 
292  ip4 = (ip4_header_t *) (ethertype_p + 1);
293  ip_version = (ip4->ip_version_and_header_length >> 4);
294 
295  if (ip_version == 0x4)
296  {
297  u32 a, t1, t2;
298  tcp_header_t *tcp = (void *) (ip4 + 1);
299 
300  is_tcp_udp = (ip4->protocol == IP_PROTOCOL_TCP) ||
301  (ip4->protocol == IP_PROTOCOL_UDP);
302  t1 = is_tcp_udp ? clib_mem_unaligned (&tcp->src, u16) : 0;
303  t2 = is_tcp_udp ? clib_mem_unaligned (&tcp->dst, u16) : 0;
304  a = t1 ^ t2;
305  return
306  lb_hash_hash_2_tuples (clib_mem_unaligned (&ip4->address_pair, u64),
307  a);
308  }
309  else if (ip_version == 0x6)
310  {
311  u64 a;
312  u32 c, t1, t2;
313  ip6_header_t *ip6 = (ip6_header_t *) (eth + 1);
314  tcp_header_t *tcp = (void *) (ip6 + 1);
315 
316  is_tcp_udp = 0;
317  if (PREDICT_TRUE ((ip6->protocol == IP_PROTOCOL_TCP) ||
318  (ip6->protocol == IP_PROTOCOL_UDP)))
319  {
320  is_tcp_udp = 1;
321  tcp = (void *) (ip6 + 1);
322  }
323  else if (ip6->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)
324  {
326  (ip6_hop_by_hop_header_t *) (ip6 + 1);
327  if ((hbh->protocol == IP_PROTOCOL_TCP)
328  || (hbh->protocol == IP_PROTOCOL_UDP))
329  {
330  is_tcp_udp = 1;
331  tcp = (tcp_header_t *) ((u8 *) hbh + ((hbh->length + 1) << 3));
332  }
333  }
334  t1 = is_tcp_udp ? clib_mem_unaligned (&tcp->src, u16) : 0;
335  t2 = is_tcp_udp ? clib_mem_unaligned (&tcp->dst, u16) : 0;
336  a = t1 ^ t2;
337  c =
338  lb_hash_hash (clib_mem_unaligned
339  (&ip6->src_address.as_uword[0], uword),
340  clib_mem_unaligned (&ip6->src_address.as_uword[1],
341  uword),
342  clib_mem_unaligned (&ip6->dst_address.as_uword[0],
343  uword),
344  clib_mem_unaligned (&ip6->dst_address.as_uword[1],
345  uword), a);
346  return c;
347  }
348 
349  return (bond_lb_l2 (vm, node, bif, b0, n_slaves));
350 }
351 
354  vlib_node_runtime_t * node,
355  bond_if_t * bif, vlib_buffer_t * b0, uword n_slaves)
356 {
357  bif->lb_rr_last_index++;
358  if (bif->lb_rr_last_index >= n_slaves)
359  bif->lb_rr_last_index = 0;
360 
361  return bif->lb_rr_last_index;
362 }
363 
366  bond_if_t * bif, vlib_buffer_t ** b,
367  u32 * h, u32 n_left, uword n_slaves, u32 lb_alg)
368 {
369  while (n_left >= 4)
370  {
371  // Prefetch next iteration
372  if (n_left >= 8)
373  {
374  vlib_buffer_t **pb = b + 4;
375 
376  vlib_prefetch_buffer_header (pb[0], LOAD);
377  vlib_prefetch_buffer_header (pb[1], LOAD);
378  vlib_prefetch_buffer_header (pb[2], LOAD);
379  vlib_prefetch_buffer_header (pb[3], LOAD);
380 
381  CLIB_PREFETCH (pb[0]->data, CLIB_CACHE_LINE_BYTES, LOAD);
382  CLIB_PREFETCH (pb[1]->data, CLIB_CACHE_LINE_BYTES, LOAD);
383  CLIB_PREFETCH (pb[2]->data, CLIB_CACHE_LINE_BYTES, LOAD);
384  CLIB_PREFETCH (pb[3]->data, CLIB_CACHE_LINE_BYTES, LOAD);
385  }
386 
391 
392  if (lb_alg == BOND_LB_L2)
393  {
394  h[0] = bond_lb_l2 (vm, node, bif, b[0], n_slaves);
395  h[1] = bond_lb_l2 (vm, node, bif, b[1], n_slaves);
396  h[2] = bond_lb_l2 (vm, node, bif, b[2], n_slaves);
397  h[3] = bond_lb_l2 (vm, node, bif, b[3], n_slaves);
398  }
399  else if (lb_alg == BOND_LB_L34)
400  {
401  h[0] = bond_lb_l34 (vm, node, bif, b[0], n_slaves);
402  h[1] = bond_lb_l34 (vm, node, bif, b[1], n_slaves);
403  h[2] = bond_lb_l34 (vm, node, bif, b[2], n_slaves);
404  h[3] = bond_lb_l34 (vm, node, bif, b[3], n_slaves);
405  }
406  else if (lb_alg == BOND_LB_L23)
407  {
408  h[0] = bond_lb_l23 (vm, node, bif, b[0], n_slaves);
409  h[1] = bond_lb_l23 (vm, node, bif, b[1], n_slaves);
410  h[2] = bond_lb_l23 (vm, node, bif, b[2], n_slaves);
411  h[3] = bond_lb_l23 (vm, node, bif, b[3], n_slaves);
412  }
413  else if (lb_alg == BOND_LB_RR)
414  {
415  h[0] = bond_lb_round_robin (vm, node, bif, b[0], n_slaves);
416  h[1] = bond_lb_round_robin (vm, node, bif, b[1], n_slaves);
417  h[2] = bond_lb_round_robin (vm, node, bif, b[2], n_slaves);
418  h[3] = bond_lb_round_robin (vm, node, bif, b[3], n_slaves);
419  }
420  else if (lb_alg == BOND_LB_BC)
421  {
422  h[0] = bond_lb_broadcast (vm, node, bif, b[0], n_slaves);
423  h[1] = bond_lb_broadcast (vm, node, bif, b[1], n_slaves);
424  h[2] = bond_lb_broadcast (vm, node, bif, b[2], n_slaves);
425  h[3] = bond_lb_broadcast (vm, node, bif, b[3], n_slaves);
426  }
427  else
428  {
429  ASSERT (0);
430  }
431 
432  n_left -= 4;
433  b += 4;
434  h += 4;
435  }
436 
437  while (n_left > 0)
438  {
440 
441  if (bif->lb == BOND_LB_L2)
442  h[0] = bond_lb_l2 (vm, node, bif, b[0], n_slaves);
443  else if (bif->lb == BOND_LB_L34)
444  h[0] = bond_lb_l34 (vm, node, bif, b[0], n_slaves);
445  else if (bif->lb == BOND_LB_L23)
446  h[0] = bond_lb_l23 (vm, node, bif, b[0], n_slaves);
447  else if (bif->lb == BOND_LB_RR)
448  h[0] = bond_lb_round_robin (vm, node, bif, b[0], n_slaves);
449  else if (bif->lb == BOND_LB_BC)
450  h[0] = bond_lb_broadcast (vm, node, bif, b[0], n_slaves);
451  else
452  {
453  ASSERT (0);
454  }
455 
456  n_left -= 1;
457  b += 1;
458  h += 1;
459  }
460 }
461 
463 bond_hash_to_port (u32 * h, u32 n_left, u32 n_slaves, int use_modulo_shortcut)
464 {
465  u32 mask = n_slaves - 1;
466 
467 #ifdef CLIB_HAVE_VEC256
468  /* only lower 16 bits of hash due to single precision fp arithmetic */
469  u32x8 mask8, sc8u, h8a, h8b;
470  f32x8 sc8f;
471 
472  if (use_modulo_shortcut)
473  {
474  mask8 = u32x8_splat (mask);
475  }
476  else
477  {
478  mask8 = u32x8_splat (0xffff);
479  sc8u = u32x8_splat (n_slaves);
480  sc8f = f32x8_from_u32x8 (sc8u);
481  }
482 
483  while (n_left > 16)
484  {
485  h8a = u32x8_load_unaligned (h) & mask8;
486  h8b = u32x8_load_unaligned (h + 8) & mask8;
487 
488  if (use_modulo_shortcut == 0)
489  {
490  h8a -= sc8u * u32x8_from_f32x8 (f32x8_from_u32x8 (h8a) / sc8f);
491  h8b -= sc8u * u32x8_from_f32x8 (f32x8_from_u32x8 (h8b) / sc8f);
492  }
493 
494  u32x8_store_unaligned (h8a, h);
495  u32x8_store_unaligned (h8b, h + 8);
496  n_left -= 16;
497  h += 16;
498  }
499 #endif
500 
501  while (n_left > 4)
502  {
503  if (use_modulo_shortcut)
504  {
505  h[0] &= mask;
506  h[1] &= mask;
507  h[2] &= mask;
508  h[3] &= mask;
509  }
510  else
511  {
512  h[0] %= n_slaves;
513  h[1] %= n_slaves;
514  h[2] %= n_slaves;
515  h[3] %= n_slaves;
516  }
517  n_left -= 4;
518  h += 4;
519  }
520  while (n_left)
521  {
522  if (use_modulo_shortcut)
523  h[0] &= mask;
524  else
525  h[0] %= n_slaves;
526  n_left -= 1;
527  h += 1;
528  }
529 }
530 
533  u32 * bi, vlib_buffer_t ** b, u32 * data, u32 n_left,
534  int single_sw_if_index)
535 {
536  u32 sw_if_index = data[0];
537  u32 *h = data;
538 
539  while (n_left >= 4)
540  {
541  // Prefetch next iteration
542  if (n_left >= 8)
543  {
544  vlib_buffer_t **pb = b + 4;
545  vlib_prefetch_buffer_header (pb[0], LOAD);
546  vlib_prefetch_buffer_header (pb[1], LOAD);
547  vlib_prefetch_buffer_header (pb[2], LOAD);
548  vlib_prefetch_buffer_header (pb[3], LOAD);
549  }
550 
551  if (PREDICT_FALSE (single_sw_if_index))
552  {
553  vnet_buffer (b[0])->sw_if_index[VLIB_TX] = sw_if_index;
554  vnet_buffer (b[1])->sw_if_index[VLIB_TX] = sw_if_index;
555  vnet_buffer (b[2])->sw_if_index[VLIB_TX] = sw_if_index;
556  vnet_buffer (b[3])->sw_if_index[VLIB_TX] = sw_if_index;
557 
558  bond_tx_add_to_queue (ptd, 0, bi[0]);
559  bond_tx_add_to_queue (ptd, 0, bi[1]);
560  bond_tx_add_to_queue (ptd, 0, bi[2]);
561  bond_tx_add_to_queue (ptd, 0, bi[3]);
562  }
563  else
564  {
565  u32 sw_if_index[4];
566 
567  sw_if_index[0] = *vec_elt_at_index (bif->active_slaves, h[0]);
568  sw_if_index[1] = *vec_elt_at_index (bif->active_slaves, h[1]);
569  sw_if_index[2] = *vec_elt_at_index (bif->active_slaves, h[2]);
570  sw_if_index[3] = *vec_elt_at_index (bif->active_slaves, h[3]);
571 
572  vnet_buffer (b[0])->sw_if_index[VLIB_TX] = sw_if_index[0];
573  vnet_buffer (b[1])->sw_if_index[VLIB_TX] = sw_if_index[1];
574  vnet_buffer (b[2])->sw_if_index[VLIB_TX] = sw_if_index[2];
575  vnet_buffer (b[3])->sw_if_index[VLIB_TX] = sw_if_index[3];
576 
577  bond_tx_add_to_queue (ptd, h[0], bi[0]);
578  bond_tx_add_to_queue (ptd, h[1], bi[1]);
579  bond_tx_add_to_queue (ptd, h[2], bi[2]);
580  bond_tx_add_to_queue (ptd, h[3], bi[3]);
581  }
582 
583  bi += 4;
584  h += 4;
585  b += 4;
586  n_left -= 4;
587  }
588  while (n_left)
589  {
590  if (PREDICT_FALSE (single_sw_if_index))
591  {
592  vnet_buffer (b[0])->sw_if_index[VLIB_TX] = sw_if_index;
593  bond_tx_add_to_queue (ptd, 0, bi[0]);
594  }
595  else
596  {
597  u32 sw_if_index0 = *vec_elt_at_index (bif->active_slaves, h[0]);
598 
599  vnet_buffer (b[0])->sw_if_index[VLIB_TX] = sw_if_index0;
600  bond_tx_add_to_queue (ptd, h[0], bi[0]);
601  }
602 
603  bi += 1;
604  h += 1;
605  b += 1;
606  n_left -= 1;
607  }
608 }
609 
612  vlib_buffer_t ** b, u32 n_left, u32 * h)
613 {
614  uword n_trace = vlib_get_trace_count (vm, node);
615 
616  while (n_trace > 0 && n_left > 0)
617  {
619  ethernet_header_t *eth;
620  u32 next0 = 0;
621 
622  vlib_trace_buffer (vm, node, next0, b[0], 0 /* follow_chain */ );
623  vlib_set_trace_count (vm, node, --n_trace);
624  t0 = vlib_add_trace (vm, node, b[0], sizeof (*t0));
626  t0->ethernet = *eth;
627  t0->sw_if_index = vnet_buffer (b[0])->sw_if_index[VLIB_TX];
628  if (!h)
629  {
631  }
632  else
633  {
634  t0->bond_sw_if_index = *vec_elt_at_index (bif->active_slaves, h[0]);
635  h++;
636  }
637  b++;
638  n_left--;
639  }
640 }
641 
643  vlib_node_runtime_t * node,
644  vlib_frame_t * frame)
645 {
646  vnet_interface_output_runtime_t *rund = (void *) node->runtime_data;
647  bond_main_t *bm = &bond_main;
648  u16 thread_index = vm->thread_index;
649  bond_if_t *bif = pool_elt_at_index (bm->interfaces, rund->dev_instance);
650  uword n_slaves;
652  u32 *from = vlib_frame_vector_args (frame);
653  u32 n_left = frame->n_vectors;
654  u32 hashes[VLIB_FRAME_SIZE], *h;
655  vnet_main_t *vnm = vnet_get_main ();
656  bond_per_thread_data_t *ptd = vec_elt_at_index (bm->per_thread_data,
657  thread_index);
658  u32 p, sw_if_index;
659 
660  if (PREDICT_FALSE (bif->admin_up == 0))
661  {
662  vlib_buffer_free (vm, vlib_frame_vector_args (frame), frame->n_vectors);
665  thread_index, bif->sw_if_index,
666  frame->n_vectors);
667  vlib_error_count (vm, node->node_index, BOND_TX_ERROR_IF_DOWN,
668  frame->n_vectors);
669  return frame->n_vectors;
670  }
671 
672  n_slaves = vec_len (bif->active_slaves);
673  if (PREDICT_FALSE (n_slaves == 0))
674  {
675  vlib_buffer_free (vm, vlib_frame_vector_args (frame), frame->n_vectors);
678  thread_index, bif->sw_if_index,
679  frame->n_vectors);
680  vlib_error_count (vm, node->node_index, BOND_TX_ERROR_NO_SLAVE,
681  frame->n_vectors);
682  return frame->n_vectors;
683  }
684 
685  vlib_get_buffers (vm, from, bufs, n_left);
686 
687  /* active-backup mode, ship everything to first sw if index */
688  if ((bif->lb == BOND_LB_AB) || PREDICT_FALSE (n_slaves == 1))
689  {
690  sw_if_index = *vec_elt_at_index (bif->active_slaves, 0);
691 
692  bond_tx_trace (vm, node, bif, bufs, frame->n_vectors, 0);
693  bond_update_sw_if_index (ptd, bif, from, bufs, &sw_if_index, n_left,
694  /* single_sw_if_index */ 1);
695  goto done;
696  }
697 
698  if (bif->lb == BOND_LB_BC)
699  {
700  sw_if_index = *vec_elt_at_index (bif->active_slaves, 0);
701 
702  bond_tx_inline (vm, node, bif, bufs, hashes, n_left, n_slaves,
703  BOND_LB_BC);
704  bond_tx_trace (vm, node, bif, bufs, frame->n_vectors, 0);
705  bond_update_sw_if_index (ptd, bif, from, bufs, &sw_if_index, n_left,
706  /* single_sw_if_index */ 1);
707  goto done;
708  }
709 
710  if (bif->lb == BOND_LB_L2)
711  bond_tx_inline (vm, node, bif, bufs, hashes, n_left, n_slaves,
712  BOND_LB_L2);
713  else if (bif->lb == BOND_LB_L34)
714  bond_tx_inline (vm, node, bif, bufs, hashes, n_left, n_slaves,
715  BOND_LB_L34);
716  else if (bif->lb == BOND_LB_L23)
717  bond_tx_inline (vm, node, bif, bufs, hashes, n_left, n_slaves,
718  BOND_LB_L23);
719  else if (bif->lb == BOND_LB_RR)
720  bond_tx_inline (vm, node, bif, bufs, hashes, n_left, n_slaves,
721  BOND_LB_RR);
722  else
723  ASSERT (0);
724 
725  /* calculate port out of hash */
726  h = hashes;
727  if (BOND_MODULO_SHORTCUT (n_slaves))
728  bond_hash_to_port (h, frame->n_vectors, n_slaves, 1);
729  else
730  bond_hash_to_port (h, frame->n_vectors, n_slaves, 0);
731 
732  bond_tx_trace (vm, node, bif, bufs, frame->n_vectors, h);
733 
734  bond_update_sw_if_index (ptd, bif, from, bufs, hashes, frame->n_vectors,
735  /* single_sw_if_index */ 0);
736 
737 done:
738  for (p = 0; p < n_slaves; p++)
739  {
740  vlib_frame_t *f;
741  u32 *to_next;
742 
743  sw_if_index = *vec_elt_at_index (bif->active_slaves, p);
744  if (PREDICT_TRUE (ptd->per_port_queue[p].n_buffers))
745  {
746  f = vnet_get_frame_to_sw_interface (vnm, sw_if_index);
747  f->n_vectors = ptd->per_port_queue[p].n_buffers;
748  to_next = vlib_frame_vector_args (f);
749  clib_memcpy_fast (to_next, ptd->per_port_queue[p].buffers,
750  f->n_vectors * sizeof (u32));
751  vnet_put_frame_to_sw_interface (vnm, sw_if_index, f);
752  ptd->per_port_queue[p].n_buffers = 0;
753  }
754  }
755  return frame->n_vectors;
756 }
757 
758 static walk_rc_t
760  void *arg)
761 {
762  bond_main_t *bm = &bond_main;
763 
764  send_ip4_garp (bm->vlib_main, sw_if_index);
765  send_ip6_na (bm->vlib_main, sw_if_index);
766 
767  return (WALK_CONTINUE);
768 }
769 
770 static uword
772 {
773  vnet_main_t *vnm = vnet_get_main ();
774  uword event_type, *event_data = 0;
775 
776  while (1)
777  {
778  u32 i;
780 
782  event_type = vlib_process_get_events (vm, &event_data);
783  ASSERT (event_type == BOND_SEND_GARP_NA);
784  for (i = 0; i < vec_len (event_data); i++)
785  {
786  hw_if_index = event_data[i];
787  /* walk hw interface to process all subinterfaces */
788  vnet_hw_interface_walk_sw (vnm, hw_if_index,
790  }
791  vec_reset_length (event_data);
792  }
793  return 0;
794 }
795 
796 /* *INDENT-OFF* */
798  .function = bond_process,
799  .type = VLIB_NODE_TYPE_PROCESS,
800  .name = "bond-process",
801 };
802 /* *INDENT-ON* */
803 
804 /* *INDENT-OFF* */
806  .name = "bond",
807  .tx_function_n_errors = BOND_TX_N_ERROR,
808  .tx_function_error_strings = bond_tx_error_strings,
809  .format_device_name = format_bond_interface_name,
810  .set_l2_mode_function = bond_set_l2_mode_function,
811  .admin_up_down_function = bond_interface_admin_up_down,
812  .subif_add_del_function = bond_subif_add_del_function,
813  .format_tx_trace = format_bond_tx_trace,
814 };
815 
816 /* *INDENT-ON* */
817 
818 /*
819  * fd.io coding-style-patch-verification: ON
820  *
821  * Local Variables:
822  * eval: (c-set-style "gnu")
823  * End:
824  */
u32 sw_if_index
Definition: ipsec_gre.api:37
VNET_DEVICE_CLASS_TX_FN() bond_dev_class(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
Definition: device.c:642
u32 hw_if_index
Definition: node.h:169
u32 flags
Definition: vhost_user.h:115
vlib_node_registration_t bond_process_node
(constructor) VLIB_REGISTER_NODE (bond_process_node)
Definition: device.c:797
#define CLIB_UNUSED(x)
Definition: clib.h:82
static __clib_unused clib_error_t * bond_set_l2_mode_function(vnet_main_t *vnm, struct vnet_hw_interface_t *bif_hw, i32 l2_if_adjust)
Definition: device.c:82
static u32 vlib_get_trace_count(vlib_main_t *vm, vlib_node_runtime_t *rt)
Definition: trace_funcs.h:156
a
Definition: bitmap.h:538
static void vlib_buffer_free(vlib_main_t *vm, u32 *buffers, u32 n_buffers)
Free buffers Frees the entire buffer chain for each buffer.
Definition: buffer_funcs.h:865
static uword * vlib_process_wait_for_event(vlib_main_t *vm)
Definition: node_funcs.h:623
vnet_main_t * vnet_get_main(void)
Definition: misc.c:47
static vnet_hw_interface_t * vnet_get_sup_hw_interface(vnet_main_t *vnm, u32 sw_if_index)
u8 lb
Definition: node.h:158
vnet_interface_main_t interface_main
Definition: vnet.h:56
#define PREDICT_TRUE(x)
Definition: clib.h:112
unsigned long u64
Definition: types.h:89
u32 buffers[VLIB_FRAME_SIZE]
Definition: node.h:145
static_always_inline u32 bond_lb_l2(vlib_main_t *vm, vlib_node_runtime_t *node, bond_if_t *bif, vlib_buffer_t *b0, uword n_slaves)
Definition: device.c:179
static void vlib_error_count(vlib_main_t *vm, uword node_index, uword counter, uword increment)
Definition: error_funcs.h:57
#define clib_memcpy_fast(a, b, c)
Definition: string.h:81
static bond_if_t * bond_get_master_by_sw_if_index(u32 sw_if_index)
Definition: node.h:466
void vnet_hw_interface_walk_sw(vnet_main_t *vnm, u32 hw_if_index, vnet_hw_sw_interface_walk_t fn, void *ctx)
Walk the SW interfaces on a HW interface - this is the super interface and any sub-interfaces.
Definition: interface.c:1021
u8 src_address[6]
Definition: packet.h:56
static vnet_hw_interface_t * vnet_get_hw_interface(vnet_main_t *vnm, u32 hw_if_index)
u32 thread_index
Definition: main.h:197
int i
bond_main_t bond_main
Definition: node.c:25
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:424
static void vlib_increment_simple_counter(vlib_simple_counter_main_t *cm, u32 thread_index, u32 index, u64 increment)
Increment a simple counter.
Definition: counter.h:78
u8 data[128]
Definition: ipsec.api:248
vl_api_ip4_address_t dst
Definition: ipsec_gre.api:39
static_always_inline u32 lb_hash_hash_2_tuples(u64 k0, u32 k1)
Definition: lb_hash_hash.h:54
void send_ip6_na(vlib_main_t *vm, u32 sw_if_index)
#define BOND_MODULO_SHORTCUT(a)
Definition: node.h:34
u32 id
Definition: node.h:167
struct _tcp_header tcp_header_t
ip6_address_t src_address
Definition: ip6_packet.h:385
unsigned char u8
Definition: types.h:56
bond_per_thread_data_t * per_thread_data
Definition: node.h:354
static vlib_buffer_t * vlib_buffer_copy(vlib_main_t *vm, vlib_buffer_t *b)
Definition: buffer_funcs.h:959
uword as_uword[16/sizeof(uword)]
Definition: ip6_packet.h:52
#define vec_reset_length(v)
Reset vector length to zero NULL-pointer tolerant.
static void vlib_trace_buffer(vlib_main_t *vm, vlib_node_runtime_t *r, u32 next_index, vlib_buffer_t *b, int follow_chain)
Definition: trace_funcs.h:114
enum walk_rc_t_ walk_rc_t
Walk return code.
#define static_always_inline
Definition: clib.h:99
u8 * format_ethernet_address(u8 *s, va_list *args)
Definition: format.c:44
static_always_inline u32 bond_lb_l34(vlib_main_t *vm, vlib_node_runtime_t *node, bond_if_t *bif, vlib_buffer_t *b0, uword n_slaves)
Definition: device.c:276
static uword vlib_process_get_events(vlib_main_t *vm, uword **data_vector)
Return the first event type which has occurred and a vector of per-event data of that type...
Definition: node_funcs.h:546
u8 dst_address[6]
Definition: packet.h:55
#define vlib_prefetch_buffer_header(b, type)
Prefetch buffer metadata.
Definition: buffer.h:203
#define vec_elt_at_index(v, i)
Get vector value at index i checking that i is in bounds.
vlib_main_t * vlib_main
Definition: node.h:344
#define VNET_DEVICE_CLASS_TX_FN(devclass)
Definition: interface.h:287
unsigned int u32
Definition: types.h:88
u32 lb_rr_last_index
Definition: node.h:161
#define VLIB_FRAME_SIZE
Definition: node.h:376
static_always_inline u32 bond_lb_round_robin(vlib_main_t *vm, vlib_node_runtime_t *node, bond_if_t *bif, vlib_buffer_t *b0, uword n_slaves)
Definition: device.c:353
static u32 vlib_get_buffer_index(vlib_main_t *vm, void *p)
Translate buffer pointer into buffer index.
Definition: buffer_funcs.h:257
void ethernet_set_rx_redirect(vnet_main_t *vnm, vnet_hw_interface_t *hi, u32 enable)
Definition: node.c:1941
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:514
u8 admin_up
Definition: node.h:156
static_always_inline u16 * bond_locate_ethertype(ethernet_header_t *eth)
Definition: device.c:192
unsigned short u16
Definition: types.h:57
static void * vlib_buffer_get_current(vlib_buffer_t *b)
Get pointer to current data to process.
Definition: buffer.h:229
#define foreach_bond_tx_error
Definition: device.c:29
ip4_address_pair_t address_pair
Definition: ip4_packet.h:172
#define PREDICT_FALSE(x)
Definition: clib.h:111
vnet_main_t vnet_main
Definition: misc.c:43
vlib_simple_counter_main_t * sw_if_counters
Definition: interface.h:823
vl_api_ip4_address_t src
Definition: ipsec_gre.api:38
static char * bond_tx_error_strings[]
Definition: device.c:42
bond_if_t * interfaces
Definition: node.h:332
void send_ip4_garp(vlib_main_t *vm, u32 sw_if_index)
Definition: arp.c:2557
#define VLIB_REGISTER_NODE(x,...)
Definition: node.h:169
u32 * slaves
Definition: node.h:173
svmdb_client_t * c
u16 n_vectors
Definition: node.h:395
static void vnet_put_frame_to_sw_interface(vnet_main_t *vnm, u32 sw_if_index, vlib_frame_t *f)
#define CLIB_PREFETCH(addr, size, type)
Definition: cache.h:80
vlib_main_t * vm
Definition: buffer.c:312
ethernet_header_t ethernet
Definition: node.h:360
#define ETHERNET_INTERFACE_FLAG_ACCEPT_ALL
Definition: ethernet.h:141
static u8 * format_bond_tx_trace(u8 *s, va_list *args)
Definition: device.c:49
signed int i32
Definition: types.h:77
#define ASSERT(truth)
static_always_inline void bond_hash_to_port(u32 *h, u32 n_left, u32 n_slaves, int use_modulo_shortcut)
Definition: device.c:463
u8 is_add
Definition: ipsec_gre.api:36
static walk_rc_t bond_active_interface_switch_cb(vnet_main_t *vnm, u32 sw_if_index, void *arg)
Definition: device.c:759
static_always_inline int ethernet_frame_is_tagged(u16 type)
Definition: ethernet.h:78
VNET_DEVICE_CLASS(bond_dev_class)
static_always_inline void bond_tx_trace(vlib_main_t *vm, vlib_node_runtime_t *node, bond_if_t *bif, vlib_buffer_t **b, u32 n_left, u32 *h)
Definition: device.c:611
u32 * active_slaves
Definition: node.h:176
#define clib_mem_unaligned(pointer, type)
Definition: types.h:155
static vlib_frame_t * vnet_get_frame_to_sw_interface(vnet_main_t *vnm, u32 sw_if_index)
static_always_inline void bond_tx_add_to_queue(bond_per_thread_data_t *ptd, u32 port, u32 bi)
Definition: device.c:146
static_always_inline u32 bond_lb_l23(vlib_main_t *vm, vlib_node_runtime_t *node, bond_if_t *bif, vlib_buffer_t *b0, uword n_slaves)
Definition: device.c:215
static void * vlib_add_trace(vlib_main_t *vm, vlib_node_runtime_t *r, vlib_buffer_t *b, u32 n_data_bytes)
Definition: trace_funcs.h:57
static_always_inline u32x8 u32x8_from_f32x8(f32x8 v)
Definition: vector_avx2.h:186
Definition: defs.h:47
u8 * format_bond_interface_name(u8 *s, va_list *args)
Definition: device.c:69
static_always_inline void bond_update_sw_if_index(bond_per_thread_data_t *ptd, bond_if_t *bif, u32 *bi, vlib_buffer_t **b, u32 *data, u32 n_left, int single_sw_if_index)
Definition: device.c:532
bond_tx_error_t
Definition: device.c:34
static_always_inline void bond_tx_inline(vlib_main_t *vm, vlib_node_runtime_t *node, bond_if_t *bif, vlib_buffer_t **b, u32 *h, u32 n_left, uword n_slaves, u32 lb_alg)
Definition: device.c:365
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
clib_error_t * vnet_hw_interface_set_flags(vnet_main_t *vnm, u32 hw_if_index, vnet_hw_interface_flags_t flags)
Definition: interface.c:504
#define VLIB_BUFFER_TRACE_TRAJECTORY_INIT(b)
Definition: buffer.h:451
VLIB buffer representation.
Definition: buffer.h:102
u64 uword
Definition: types.h:112
static void * vlib_frame_vector_args(vlib_frame_t *f)
Get pointer to frame vector data.
Definition: node_funcs.h:274
#define vnet_buffer(b)
Definition: buffer.h:369
static __clib_unused clib_error_t * bond_subif_add_del_function(vnet_main_t *vnm, u32 hw_if_index, struct vnet_sw_interface_t *st, int is_add)
Definition: device.c:123
#define vec_foreach(var, vec)
Vector iterator.
static_always_inline u32 lb_hash_hash(u64 k0, u64 k1, u64 k2, u64 k3, u64 k4)
Definition: lb_hash_hash.h:46
static_always_inline u32 bond_lb_broadcast(vlib_main_t *vm, vlib_node_runtime_t *node, bond_if_t *bif, vlib_buffer_t *b0, uword n_slaves)
Definition: device.c:153
u8 ip_version_and_header_length
Definition: ip4_packet.h:138
static void vlib_set_trace_count(vlib_main_t *vm, vlib_node_runtime_t *rt, u32 count)
Definition: trace_funcs.h:172
static_always_inline void vlib_get_buffers(vlib_main_t *vm, u32 *bi, vlib_buffer_t **b, int count)
Translate array of buffer indices into buffer pointers.
Definition: buffer_funcs.h:244
u32 bond_sw_if_index
Definition: node.h:362
#define CLIB_CACHE_LINE_BYTES
Definition: cache.h:59
static clib_error_t * bond_interface_admin_up_down(vnet_main_t *vnm, u32 hw_if_index, u32 flags)
Definition: device.c:131
static_always_inline f32x8 f32x8_from_u32x8(u32x8 v)
Definition: vector_avx2.h:180
ip6_address_t dst_address
Definition: ip6_packet.h:385
bond_per_port_queue_t * per_port_queue
Definition: node.h:151
u32 ethernet_set_flags(vnet_main_t *vnm, u32 hw_if_index, u32 flags)
Definition: interface.c:372
static uword bond_process(vlib_main_t *vm, vlib_node_runtime_t *rt, vlib_frame_t *f)
Definition: device.c:771