FD.io VPP  v19.01.3-6-g70449b9b9
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 
108  return 0;
109 }
110 
111 static __clib_unused clib_error_t *
113  struct vnet_sw_interface_t *st, int is_add)
114 {
115  /* Nothing for now */
116  return 0;
117 }
118 
119 static clib_error_t *
121 {
122  vnet_hw_interface_t *hif = vnet_get_hw_interface (vnm, hw_if_index);
123  uword is_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0;
124  bond_main_t *bm = &bond_main;
126 
127  bif->admin_up = is_up;
128  if (is_up && vec_len (bif->active_slaves))
131  return 0;
132 }
133 
136 {
137  u32 idx = ptd->per_port_queue[port].n_buffers++;
138  ptd->per_port_queue[port].buffers[idx] = bi;
139 }
140 
143  bond_if_t * bif, vlib_buffer_t * b0, uword n_slaves)
144 {
145  bond_main_t *bm = &bond_main;
146  vlib_buffer_t *c0;
147  int port;
149  u16 thread_index = vm->thread_index;
151  thread_index);
152 
153  for (port = 1; port < n_slaves; port++)
154  {
155  sw_if_index = *vec_elt_at_index (bif->active_slaves, port);
156  c0 = vlib_buffer_copy (vm, b0);
157  if (PREDICT_TRUE (c0 != 0))
158  {
159  vnet_buffer (c0)->sw_if_index[VLIB_TX] = sw_if_index;
160  bond_tx_add_to_queue (ptd, port, vlib_get_buffer_index (vm, c0));
161  }
162  }
163 
164  return 0;
165 }
166 
169  bond_if_t * bif, vlib_buffer_t * b0, uword n_slaves)
170 {
172  u64 *dst = (u64 *) & eth->dst_address[0];
173  u64 a = clib_mem_unaligned (dst, u64);
174  u32 *src = (u32 *) & eth->src_address[2];
175  u32 b = clib_mem_unaligned (src, u32);
176 
177  return lb_hash_hash_2_tuples (a, b);
178 }
179 
182 {
183  u16 *ethertype_p;
185 
186  if (!ethernet_frame_is_tagged (clib_net_to_host_u16 (eth->type)))
187  {
188  ethertype_p = &eth->type;
189  }
190  else
191  {
192  vlan = (void *) (eth + 1);
193  ethertype_p = &vlan->type;
194  if (*ethertype_p == ntohs (ETHERNET_TYPE_VLAN))
195  {
196  vlan++;
197  ethertype_p = &vlan->type;
198  }
199  }
200  return ethertype_p;
201 }
202 
205  bond_if_t * bif, vlib_buffer_t * b0, uword n_slaves)
206 {
208  u8 ip_version;
209  ip4_header_t *ip4;
210  u16 ethertype, *ethertype_p;
211  u32 *mac1, *mac2, *mac3;
212 
213  ethertype_p = bond_locate_ethertype (eth);
214  ethertype = clib_mem_unaligned (ethertype_p, u16);
215 
216  if ((ethertype != htons (ETHERNET_TYPE_IP4)) &&
217  (ethertype != htons (ETHERNET_TYPE_IP6)))
218  return (bond_lb_l2 (vm, node, bif, b0, n_slaves));
219 
220  ip4 = (ip4_header_t *) (ethertype_p + 1);
221  ip_version = (ip4->ip_version_and_header_length >> 4);
222 
223  if (ip_version == 0x4)
224  {
225  u32 a, c;
226 
227  mac1 = (u32 *) & eth->dst_address[0];
228  mac2 = (u32 *) & eth->dst_address[4];
229  mac3 = (u32 *) & eth->src_address[2];
230 
231  a = clib_mem_unaligned (mac1, u32) ^ clib_mem_unaligned (mac2, u32) ^
232  clib_mem_unaligned (mac3, u32);
233  c =
235  a);
236  return c;
237  }
238  else if (ip_version == 0x6)
239  {
240  u64 a;
241  u32 c;
242  ip6_header_t *ip6 = (ip6_header_t *) (eth + 1);
243 
244  mac1 = (u32 *) & eth->dst_address[0];
245  mac2 = (u32 *) & eth->dst_address[4];
246  mac3 = (u32 *) & eth->src_address[2];
247 
248  a = clib_mem_unaligned (mac1, u32) ^ clib_mem_unaligned (mac2, u32) ^
249  clib_mem_unaligned (mac3, u32);
250  c =
252  (&ip6->src_address.as_uword[0], uword),
254  uword),
256  uword),
258  uword), a);
259  return c;
260  }
261  return (bond_lb_l2 (vm, node, bif, b0, n_slaves));
262 }
263 
266  bond_if_t * bif, vlib_buffer_t * b0, uword n_slaves)
267 {
269  u8 ip_version;
270  uword is_tcp_udp;
271  ip4_header_t *ip4;
272  u16 ethertype, *ethertype_p;
273 
274  ethertype_p = bond_locate_ethertype (eth);
275  ethertype = clib_mem_unaligned (ethertype_p, u16);
276 
277  if ((ethertype != htons (ETHERNET_TYPE_IP4)) &&
278  (ethertype != htons (ETHERNET_TYPE_IP6)))
279  return (bond_lb_l2 (vm, node, bif, b0, n_slaves));
280 
281  ip4 = (ip4_header_t *) (ethertype_p + 1);
282  ip_version = (ip4->ip_version_and_header_length >> 4);
283 
284  if (ip_version == 0x4)
285  {
286  u32 a, t1, t2;
287  tcp_header_t *tcp = (void *) (ip4 + 1);
288 
289  is_tcp_udp = (ip4->protocol == IP_PROTOCOL_TCP) ||
290  (ip4->protocol == IP_PROTOCOL_UDP);
291  t1 = is_tcp_udp ? clib_mem_unaligned (&tcp->src, u16) : 0;
292  t2 = is_tcp_udp ? clib_mem_unaligned (&tcp->dst, u16) : 0;
293  a = t1 ^ t2;
294  return
295  lb_hash_hash_2_tuples (clib_mem_unaligned (&ip4->address_pair, u64),
296  a);
297  }
298  else if (ip_version == 0x6)
299  {
300  u64 a;
301  u32 c, t1, t2;
302  ip6_header_t *ip6 = (ip6_header_t *) (eth + 1);
303  tcp_header_t *tcp = (void *) (ip6 + 1);
304 
305  is_tcp_udp = 0;
306  if (PREDICT_TRUE ((ip6->protocol == IP_PROTOCOL_TCP) ||
307  (ip6->protocol == IP_PROTOCOL_UDP)))
308  {
309  is_tcp_udp = 1;
310  tcp = (void *) (ip6 + 1);
311  }
312  else if (ip6->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)
313  {
315  (ip6_hop_by_hop_header_t *) (ip6 + 1);
316  if ((hbh->protocol == IP_PROTOCOL_TCP)
317  || (hbh->protocol == IP_PROTOCOL_UDP))
318  {
319  is_tcp_udp = 1;
320  tcp = (tcp_header_t *) ((u8 *) hbh + ((hbh->length + 1) << 3));
321  }
322  }
323  t1 = is_tcp_udp ? clib_mem_unaligned (&tcp->src, u16) : 0;
324  t2 = is_tcp_udp ? clib_mem_unaligned (&tcp->dst, u16) : 0;
325  a = t1 ^ t2;
326  c =
327  lb_hash_hash (clib_mem_unaligned
328  (&ip6->src_address.as_uword[0], uword),
329  clib_mem_unaligned (&ip6->src_address.as_uword[1],
330  uword),
331  clib_mem_unaligned (&ip6->dst_address.as_uword[0],
332  uword),
333  clib_mem_unaligned (&ip6->dst_address.as_uword[1],
334  uword), a);
335  return c;
336  }
337 
338  return (bond_lb_l2 (vm, node, bif, b0, n_slaves));
339 }
340 
343  vlib_node_runtime_t * node,
344  bond_if_t * bif, vlib_buffer_t * b0, uword n_slaves)
345 {
346  bif->lb_rr_last_index++;
347  if (bif->lb_rr_last_index >= n_slaves)
348  bif->lb_rr_last_index = 0;
349 
350  return bif->lb_rr_last_index;
351 }
352 
355  bond_if_t * bif, vlib_buffer_t ** b,
356  u32 * h, u32 n_left, uword n_slaves, u32 lb_alg)
357 {
358  while (n_left >= 4)
359  {
360  // Prefetch next iteration
361  if (n_left >= 8)
362  {
363  vlib_buffer_t **pb = b + 4;
364 
365  vlib_prefetch_buffer_header (pb[0], LOAD);
366  vlib_prefetch_buffer_header (pb[1], LOAD);
367  vlib_prefetch_buffer_header (pb[2], LOAD);
368  vlib_prefetch_buffer_header (pb[3], LOAD);
369 
370  CLIB_PREFETCH (pb[0]->data, CLIB_CACHE_LINE_BYTES, LOAD);
371  CLIB_PREFETCH (pb[1]->data, CLIB_CACHE_LINE_BYTES, LOAD);
372  CLIB_PREFETCH (pb[2]->data, CLIB_CACHE_LINE_BYTES, LOAD);
373  CLIB_PREFETCH (pb[3]->data, CLIB_CACHE_LINE_BYTES, LOAD);
374  }
375 
380 
381  if (lb_alg == BOND_LB_L2)
382  {
383  h[0] = bond_lb_l2 (vm, node, bif, b[0], n_slaves);
384  h[1] = bond_lb_l2 (vm, node, bif, b[1], n_slaves);
385  h[2] = bond_lb_l2 (vm, node, bif, b[2], n_slaves);
386  h[3] = bond_lb_l2 (vm, node, bif, b[3], n_slaves);
387  }
388  else if (lb_alg == BOND_LB_L34)
389  {
390  h[0] = bond_lb_l34 (vm, node, bif, b[0], n_slaves);
391  h[1] = bond_lb_l34 (vm, node, bif, b[1], n_slaves);
392  h[2] = bond_lb_l34 (vm, node, bif, b[2], n_slaves);
393  h[3] = bond_lb_l34 (vm, node, bif, b[3], n_slaves);
394  }
395  else if (lb_alg == BOND_LB_L23)
396  {
397  h[0] = bond_lb_l23 (vm, node, bif, b[0], n_slaves);
398  h[1] = bond_lb_l23 (vm, node, bif, b[1], n_slaves);
399  h[2] = bond_lb_l23 (vm, node, bif, b[2], n_slaves);
400  h[3] = bond_lb_l23 (vm, node, bif, b[3], n_slaves);
401  }
402  else if (lb_alg == BOND_LB_RR)
403  {
404  h[0] = bond_lb_round_robin (vm, node, bif, b[0], n_slaves);
405  h[1] = bond_lb_round_robin (vm, node, bif, b[1], n_slaves);
406  h[2] = bond_lb_round_robin (vm, node, bif, b[2], n_slaves);
407  h[3] = bond_lb_round_robin (vm, node, bif, b[3], n_slaves);
408  }
409  else if (lb_alg == BOND_LB_BC)
410  {
411  h[0] = bond_lb_broadcast (vm, node, bif, b[0], n_slaves);
412  h[1] = bond_lb_broadcast (vm, node, bif, b[1], n_slaves);
413  h[2] = bond_lb_broadcast (vm, node, bif, b[2], n_slaves);
414  h[3] = bond_lb_broadcast (vm, node, bif, b[3], n_slaves);
415  }
416  else
417  {
418  ASSERT (0);
419  }
420 
421  n_left -= 4;
422  b += 4;
423  h += 4;
424  }
425 
426  while (n_left > 0)
427  {
429 
430  if (bif->lb == BOND_LB_L2)
431  h[0] = bond_lb_l2 (vm, node, bif, b[0], n_slaves);
432  else if (bif->lb == BOND_LB_L34)
433  h[0] = bond_lb_l34 (vm, node, bif, b[0], n_slaves);
434  else if (bif->lb == BOND_LB_L23)
435  h[0] = bond_lb_l23 (vm, node, bif, b[0], n_slaves);
436  else if (bif->lb == BOND_LB_RR)
437  h[0] = bond_lb_round_robin (vm, node, bif, b[0], n_slaves);
438  else if (bif->lb == BOND_LB_BC)
439  h[0] = bond_lb_broadcast (vm, node, bif, b[0], n_slaves);
440  else
441  {
442  ASSERT (0);
443  }
444 
445  n_left -= 1;
446  b += 1;
447  h += 1;
448  }
449 }
450 
452 bond_hash_to_port (u32 * h, u32 n_left, u32 n_slaves, int use_modulo_shortcut)
453 {
454  u32 mask = n_slaves - 1;
455 
456 #ifdef CLIB_HAVE_VEC256
457  /* only lower 16 bits of hash due to single precision fp arithmetics */
458  u32x8 mask8, sc8u, h8a, h8b;
459  f32x8 sc8f;
460 
461  if (use_modulo_shortcut)
462  {
463  mask8 = u32x8_splat (mask);
464  }
465  else
466  {
467  mask8 = u32x8_splat (0xffff);
468  sc8u = u32x8_splat (n_slaves);
469  sc8f = f32x8_from_u32x8 (sc8u);
470  }
471 
472  while (n_left > 16)
473  {
474  h8a = u32x8_load_unaligned (h) & mask8;
475  h8b = u32x8_load_unaligned (h + 8) & mask8;
476 
477  if (use_modulo_shortcut == 0)
478  {
479  h8a -= sc8u * u32x8_from_f32x8 (f32x8_from_u32x8 (h8a) / sc8f);
480  h8b -= sc8u * u32x8_from_f32x8 (f32x8_from_u32x8 (h8b) / sc8f);
481  }
482 
483  u32x8_store_unaligned (h8a, h);
484  u32x8_store_unaligned (h8b, h + 8);
485  n_left -= 16;
486  h += 16;
487  }
488 #endif
489 
490  while (n_left > 4)
491  {
492  if (use_modulo_shortcut)
493  {
494  h[0] &= mask;
495  h[1] &= mask;
496  h[2] &= mask;
497  h[3] &= mask;
498  }
499  else
500  {
501  h[0] %= n_slaves;
502  h[1] %= n_slaves;
503  h[2] %= n_slaves;
504  h[3] %= n_slaves;
505  }
506  n_left -= 4;
507  h += 4;
508  }
509  while (n_left)
510  {
511  if (use_modulo_shortcut)
512  h[0] &= mask;
513  else
514  h[0] %= n_slaves;
515  n_left -= 1;
516  h += 1;
517  }
518 }
519 
522  u32 * bi, vlib_buffer_t ** b, u32 * data, u32 n_left,
523  int single_sw_if_index)
524 {
525  u32 sw_if_index = data[0];
526  u32 *h = data;
527 
528  while (n_left >= 4)
529  {
530  // Prefetch next iteration
531  if (n_left >= 8)
532  {
533  vlib_buffer_t **pb = b + 4;
534  vlib_prefetch_buffer_header (pb[0], LOAD);
535  vlib_prefetch_buffer_header (pb[1], LOAD);
536  vlib_prefetch_buffer_header (pb[2], LOAD);
537  vlib_prefetch_buffer_header (pb[3], LOAD);
538  }
539 
540  if (PREDICT_FALSE (single_sw_if_index))
541  {
542  vnet_buffer (b[0])->sw_if_index[VLIB_TX] = sw_if_index;
543  vnet_buffer (b[1])->sw_if_index[VLIB_TX] = sw_if_index;
544  vnet_buffer (b[2])->sw_if_index[VLIB_TX] = sw_if_index;
545  vnet_buffer (b[3])->sw_if_index[VLIB_TX] = sw_if_index;
546 
547  bond_tx_add_to_queue (ptd, 0, bi[0]);
548  bond_tx_add_to_queue (ptd, 0, bi[1]);
549  bond_tx_add_to_queue (ptd, 0, bi[2]);
550  bond_tx_add_to_queue (ptd, 0, bi[3]);
551  }
552  else
553  {
554  u32 sw_if_index[4];
555 
556  sw_if_index[0] = *vec_elt_at_index (bif->active_slaves, h[0]);
557  sw_if_index[1] = *vec_elt_at_index (bif->active_slaves, h[1]);
558  sw_if_index[2] = *vec_elt_at_index (bif->active_slaves, h[2]);
559  sw_if_index[3] = *vec_elt_at_index (bif->active_slaves, h[3]);
560 
561  vnet_buffer (b[0])->sw_if_index[VLIB_TX] = sw_if_index[0];
562  vnet_buffer (b[1])->sw_if_index[VLIB_TX] = sw_if_index[1];
563  vnet_buffer (b[2])->sw_if_index[VLIB_TX] = sw_if_index[2];
564  vnet_buffer (b[3])->sw_if_index[VLIB_TX] = sw_if_index[3];
565 
566  bond_tx_add_to_queue (ptd, h[0], bi[0]);
567  bond_tx_add_to_queue (ptd, h[1], bi[1]);
568  bond_tx_add_to_queue (ptd, h[2], bi[2]);
569  bond_tx_add_to_queue (ptd, h[3], bi[3]);
570  }
571 
572  bi += 4;
573  h += 4;
574  b += 4;
575  n_left -= 4;
576  }
577  while (n_left)
578  {
579  if (PREDICT_FALSE (single_sw_if_index))
580  {
581  vnet_buffer (b[0])->sw_if_index[VLIB_TX] = sw_if_index;
582  bond_tx_add_to_queue (ptd, 0, bi[0]);
583  }
584  else
585  {
586  u32 sw_if_index0 = *vec_elt_at_index (bif->active_slaves, h[0]);
587 
588  vnet_buffer (b[0])->sw_if_index[VLIB_TX] = sw_if_index0;
589  bond_tx_add_to_queue (ptd, h[0], bi[0]);
590  }
591 
592  bi += 1;
593  h += 1;
594  b += 1;
595  n_left -= 1;
596  }
597 }
598 
601  vlib_buffer_t ** b, u32 n_left, u32 * h)
602 {
603  uword n_trace = vlib_get_trace_count (vm, node);
604 
605  while (n_trace > 0 && n_left > 0)
606  {
608  ethernet_header_t *eth;
609  u32 next0 = 0;
610 
611  vlib_trace_buffer (vm, node, next0, b[0], 0 /* follow_chain */ );
612  vlib_set_trace_count (vm, node, --n_trace);
613  t0 = vlib_add_trace (vm, node, b[0], sizeof (*t0));
615  t0->ethernet = *eth;
616  t0->sw_if_index = vnet_buffer (b[0])->sw_if_index[VLIB_TX];
617  if (!h)
618  {
620  }
621  else
622  {
623  t0->bond_sw_if_index = *vec_elt_at_index (bif->active_slaves, h[0]);
624  h++;
625  }
626  b++;
627  n_left--;
628  }
629 }
630 
632  vlib_node_runtime_t * node,
633  vlib_frame_t * frame)
634 {
635  vnet_interface_output_runtime_t *rund = (void *) node->runtime_data;
636  bond_main_t *bm = &bond_main;
637  u16 thread_index = vm->thread_index;
638  bond_if_t *bif = pool_elt_at_index (bm->interfaces, rund->dev_instance);
639  uword n_slaves;
641  u32 *from = vlib_frame_vector_args (frame);
642  u32 n_left = frame->n_vectors;
643  u32 hashes[VLIB_FRAME_SIZE], *h;
644  vnet_main_t *vnm = vnet_get_main ();
645  bond_per_thread_data_t *ptd = vec_elt_at_index (bm->per_thread_data,
646  thread_index);
647  u32 p, sw_if_index;
648 
649  if (PREDICT_FALSE (bif->admin_up == 0))
650  {
651  vlib_buffer_free (vm, vlib_frame_vector_args (frame), frame->n_vectors);
654  thread_index, bif->sw_if_index,
655  frame->n_vectors);
656  vlib_error_count (vm, node->node_index, BOND_TX_ERROR_IF_DOWN,
657  frame->n_vectors);
658  return frame->n_vectors;
659  }
660 
661  n_slaves = vec_len (bif->active_slaves);
662  if (PREDICT_FALSE (n_slaves == 0))
663  {
664  vlib_buffer_free (vm, vlib_frame_vector_args (frame), frame->n_vectors);
667  thread_index, bif->sw_if_index,
668  frame->n_vectors);
669  vlib_error_count (vm, node->node_index, BOND_TX_ERROR_NO_SLAVE,
670  frame->n_vectors);
671  return frame->n_vectors;
672  }
673 
674  vlib_get_buffers (vm, from, bufs, n_left);
675 
676  /* active-backup mode, ship everyting to first sw if index */
677  if ((bif->lb == BOND_LB_AB) || PREDICT_FALSE (n_slaves == 1))
678  {
679  sw_if_index = *vec_elt_at_index (bif->active_slaves, 0);
680 
681  bond_tx_trace (vm, node, bif, bufs, frame->n_vectors, 0);
682  bond_update_sw_if_index (ptd, bif, from, bufs, &sw_if_index, n_left,
683  /* single_sw_if_index */ 1);
684  goto done;
685  }
686 
687  if (bif->lb == BOND_LB_BC)
688  {
689  sw_if_index = *vec_elt_at_index (bif->active_slaves, 0);
690 
691  bond_tx_inline (vm, node, bif, bufs, hashes, n_left, n_slaves,
692  BOND_LB_BC);
693  bond_tx_trace (vm, node, bif, bufs, frame->n_vectors, 0);
694  bond_update_sw_if_index (ptd, bif, from, bufs, &sw_if_index, n_left,
695  /* single_sw_if_index */ 1);
696  goto done;
697  }
698 
699  if (bif->lb == BOND_LB_L2)
700  bond_tx_inline (vm, node, bif, bufs, hashes, n_left, n_slaves,
701  BOND_LB_L2);
702  else if (bif->lb == BOND_LB_L34)
703  bond_tx_inline (vm, node, bif, bufs, hashes, n_left, n_slaves,
704  BOND_LB_L34);
705  else if (bif->lb == BOND_LB_L23)
706  bond_tx_inline (vm, node, bif, bufs, hashes, n_left, n_slaves,
707  BOND_LB_L23);
708  else if (bif->lb == BOND_LB_RR)
709  bond_tx_inline (vm, node, bif, bufs, hashes, n_left, n_slaves,
710  BOND_LB_RR);
711  else
712  ASSERT (0);
713 
714  /* calculate port out of hash */
715  h = hashes;
716  if (BOND_MODULO_SHORTCUT (n_slaves))
717  bond_hash_to_port (h, frame->n_vectors, n_slaves, 1);
718  else
719  bond_hash_to_port (h, frame->n_vectors, n_slaves, 0);
720 
721  bond_tx_trace (vm, node, bif, bufs, frame->n_vectors, h);
722 
723  bond_update_sw_if_index (ptd, bif, from, bufs, hashes, frame->n_vectors,
724  /* single_sw_if_index */ 0);
725 
726 done:
727  for (p = 0; p < n_slaves; p++)
728  {
729  vlib_frame_t *f;
730  u32 *to_next;
731 
732  sw_if_index = *vec_elt_at_index (bif->active_slaves, p);
733  if (PREDICT_TRUE (ptd->per_port_queue[p].n_buffers))
734  {
735  f = vnet_get_frame_to_sw_interface (vnm, sw_if_index);
736  f->n_vectors = ptd->per_port_queue[p].n_buffers;
737  to_next = vlib_frame_vector_args (f);
738  clib_memcpy_fast (to_next, ptd->per_port_queue[p].buffers,
739  f->n_vectors * sizeof (u32));
740  vnet_put_frame_to_sw_interface (vnm, sw_if_index, f);
741  ptd->per_port_queue[p].n_buffers = 0;
742  }
743  }
744 
746  + VNET_INTERFACE_COUNTER_TX, thread_index,
747  bif->sw_if_index, frame->n_vectors);
748 
749  return frame->n_vectors;
750 }
751 
752 static walk_rc_t
754  void *arg)
755 {
756  bond_main_t *bm = &bond_main;
757 
758  send_ip4_garp (bm->vlib_main, sw_if_index);
759  send_ip6_na (bm->vlib_main, sw_if_index);
760 
761  return (WALK_CONTINUE);
762 }
763 
764 static uword
766 {
767  vnet_main_t *vnm = vnet_get_main ();
768  uword event_type, *event_data = 0;
769 
770  while (1)
771  {
772  u32 i;
774 
776  event_type = vlib_process_get_events (vm, &event_data);
777  ASSERT (event_type == BOND_SEND_GARP_NA);
778  for (i = 0; i < vec_len (event_data); i++)
779  {
780  hw_if_index = event_data[i];
781  /* walk hw interface to process all subinterfaces */
782  vnet_hw_interface_walk_sw (vnm, hw_if_index,
784  }
785  vec_reset_length (event_data);
786  }
787  return 0;
788 }
789 
790 /* *INDENT-OFF* */
792  .function = bond_process,
793  .type = VLIB_NODE_TYPE_PROCESS,
794  .name = "bond-process",
795 };
796 /* *INDENT-ON* */
797 
798 /* *INDENT-OFF* */
800  .name = "bond",
801  .tx_function_n_errors = BOND_TX_N_ERROR,
802  .tx_function_error_strings = bond_tx_error_strings,
803  .format_device_name = format_bond_interface_name,
804  .set_l2_mode_function = bond_set_l2_mode_function,
805  .admin_up_down_function = bond_interface_admin_up_down,
806  .subif_add_del_function = bond_subif_add_del_function,
807  .format_tx_trace = format_bond_tx_trace,
808 };
809 
810 /* *INDENT-ON* */
811 
812 /*
813  * fd.io coding-style-patch-verification: ON
814  *
815  * Local Variables:
816  * eval: (c-set-style "gnu")
817  * End:
818  */
VNET_DEVICE_CLASS_TX_FN() bond_dev_class(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
Definition: device.c:631
u32 hw_if_index
Definition: node.h:169
u32 flags
Definition: vhost_user.h:115
vl_api_address_t src
Definition: vxlan_gbp.api:32
vlib_node_registration_t bond_process_node
(constructor) VLIB_REGISTER_NODE (bond_process_node)
Definition: device.c:791
#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:529
static uword * vlib_process_wait_for_event(vlib_main_t *vm)
Definition: node_funcs.h:593
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:168
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:439
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:1020
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:179
int i
bond_main_t bond_main
Definition: node.c:24
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:419
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
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:378
unsigned char u8
Definition: types.h:56
bond_per_thread_data_t * per_thread_data
Definition: node.h:327
static vlib_buffer_t * vlib_buffer_copy(vlib_main_t *vm, vlib_buffer_t *b)
Definition: buffer_funcs.h:685
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:265
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:516
u32 sw_if_index
Definition: vxlan_gbp.api:37
u8 dst_address[6]
Definition: packet.h:55
#define vlib_prefetch_buffer_header(b, type)
Prefetch buffer metadata.
Definition: buffer.h:188
#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:317
#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:401
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:342
static u32 vlib_get_buffer_index(vlib_main_t *vm, void *p)
Translate buffer pointer into buffer index.
Definition: buffer_funcs.h:158
void ethernet_set_rx_redirect(vnet_main_t *vnm, vnet_hw_interface_t *hi, u32 enable)
Definition: node.c:1916
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:511
u8 admin_up
Definition: node.h:156
static_always_inline u16 * bond_locate_ethertype(ethernet_header_t *eth)
Definition: device.c:181
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:214
#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:838
static char * bond_tx_error_strings[]
Definition: device.c:42
bond_if_t * interfaces
Definition: node.h:305
void send_ip4_garp(vlib_main_t *vm, u32 sw_if_index)
Definition: arp.c:2554
#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:420
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:79
vlib_main_t * vm
Definition: buffer.c:301
vl_api_address_t dst
Definition: vxlan_gbp.api:33
ethernet_header_t ethernet
Definition: node.h:333
#define ETHERNET_INTERFACE_FLAG_ACCEPT_ALL
Definition: ethernet.h:174
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:452
static walk_rc_t bond_active_interface_switch_cb(vnet_main_t *vnm, u32 sw_if_index, void *arg)
Definition: device.c:753
static_always_inline int ethernet_frame_is_tagged(u16 type)
Definition: ethernet.h:111
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:600
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:135
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:204
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:521
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:354
#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:495
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:244
#define vnet_buffer(b)
Definition: buffer.h:368
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:112
#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:142
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:145
u32 bond_sw_if_index
Definition: node.h:335
#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:120
static_always_inline f32x8 f32x8_from_u32x8(u32x8 v)
Definition: vector_avx2.h:180
ip6_address_t dst_address
Definition: ip6_packet.h:378
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:371
static uword bond_process(vlib_main_t *vm, vlib_node_runtime_t *rt, vlib_frame_t *f)
Definition: device.c:765