FD.io VPP  v18.10-34-gcce845e
Vector Packet Processing
l2_fib.c
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1 /*
2  * l2_fib.c : layer 2 forwarding table (aka mac table)
3  *
4  * Copyright (c) 2013 Cisco and/or its affiliates.
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at:
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 
18 
19 #include <vlib/vlib.h>
20 #include <vnet/vnet.h>
21 #include <vnet/pg/pg.h>
22 #include <vnet/ethernet/ethernet.h>
23 #include <vlib/cli.h>
24 
25 #include <vppinfra/error.h>
26 #include <vppinfra/hash.h>
27 #include <vnet/l2/l2_input.h>
28 #include <vnet/l2/l2_fib.h>
29 #include <vnet/l2/l2_learn.h>
30 #include <vnet/l2/l2_bd.h>
31 
33 
34 #include <vlibmemory/api.h>
35 #include <vnet/vnet_msg_enum.h>
36 
37 #define vl_typedefs /* define message structures */
38 #include <vnet/vnet_all_api_h.h>
39 #undef vl_typedefs
40 
41 #define vl_endianfun /* define message structures */
42 #include <vnet/vnet_all_api_h.h>
43 #undef vl_endianfun
44 
45 /**
46  * @file
47  * @brief Ethernet MAC Address FIB Table Management.
48  *
49  * The MAC Address forwarding table for bridge-domains is called the l2fib.
50  * Entries are added automatically as part of mac learning, but MAC Addresses
51  * entries can also be added manually.
52  *
53  */
54 
56 
57 static void
59 {
60  u64 tmp = *((u64 *) mac);
61  tmp = clib_net_to_host_u64 (tmp);
62  tmp += 1 << 16; /* skip unused (least significant) octets */
63  tmp = clib_host_to_net_u64 (tmp);
64 
65  clib_memcpy (mac, &tmp, 6);
66 }
67 
68 /** Format sw_if_index. If the value is ~0, use the text "N/A" */
69 u8 *
71 {
72  vnet_main_t *vnm = va_arg (*args, vnet_main_t *);
73  u32 sw_if_index = va_arg (*args, u32);
74  if (sw_if_index == ~0)
75  return format (s, "N/A");
76 
77  vnet_sw_interface_t *swif = vnet_get_sw_interface_safe (vnm, sw_if_index);
78  if (!swif)
79  return format (s, "Stale");
80 
81  return format (s, "%U", format_vnet_sw_interface_name, vnm,
82  vnet_get_sw_interface_safe (vnm, sw_if_index));
83 }
84 
85 typedef struct l2fib_dump_walk_ctx_t_
86 {
91 
92 static void
93 l2fib_dump_walk_cb (BVT (clib_bihash_kv) * kvp, void *arg)
94 {
96  l2fib_entry_result_t result;
98 
99  key.raw = kvp->key;
100  result.raw = kvp->value;
101 
102  if ((ctx->bd_index == ~0) || (ctx->bd_index == key.fields.bd_index))
103  {
104  vec_add1 (ctx->l2fe_key, key);
105  vec_add1 (ctx->l2fe_res, result);
106  }
107 }
108 
109 void
113 {
114  l2fib_main_t *msm = &l2fib_main;
116  .bd_index = bd_index,
117  };
118 
120  (&msm->mac_table, l2fib_dump_walk_cb, &ctx);
121 
122  *l2fe_key = ctx.l2fe_key;
123  *l2fe_res = ctx.l2fe_res;
124 }
125 
127 {
138 
139 static void
140 l2fib_show_walk_cb (BVT (clib_bihash_kv) * kvp, void *arg)
141 {
142  l2fib_show_walk_ctx_t *ctx = arg;
143  l2_bridge_domain_t *bd_config;
144  l2fib_entry_result_t result;
145  l2fib_entry_key_t key;
146 
147  if (ctx->verbose && ctx->first_entry)
148  {
149  ctx->first_entry = 0;
150  vlib_cli_output (ctx->vm,
151  "%=19s%=7s%=7s%=8s%=9s%=7s%=7s%=5s%=30s",
152  "Mac-Address", "BD-Idx", "If-Idx",
153  "BSN-ISN", "Age(min)", "static", "filter",
154  "bvi", "Interface-Name");
155  }
156 
157  key.raw = kvp->key;
158  result.raw = kvp->value;
159  ctx->total_entries++;
160 
161  if (ctx->verbose &&
162  ((ctx->bd_index >> 31) || (ctx->bd_index == key.fields.bd_index)))
163  {
164  u8 *s = NULL;
165 
166  if (ctx->learn && l2fib_entry_result_is_set_AGE_NOT (&result))
167  return; /* skip provisioned macs */
168 
169  if (ctx->add && !l2fib_entry_result_is_set_AGE_NOT (&result))
170  return; /* skip learned macs */
171 
173  key.fields.bd_index);
174 
175  if (l2fib_entry_result_is_set_AGE_NOT (&result))
176  s = format (s, "no");
177  else if (bd_config->mac_age == 0)
178  s = format (s, "-");
179  else
180  {
181  i16 delta = ctx->now - result.fields.timestamp;
182  delta += delta < 0 ? 256 : 0;
183  s = format (s, "%d", delta);
184  }
185 
186  vlib_cli_output (ctx->vm,
187  "%=19U%=7d%=7d %3d/%-3d%=9v%=7s%=7s%=5s%=30U",
189  key.fields.bd_index,
190  result.fields.sw_if_index == ~0
191  ? -1 : result.fields.sw_if_index,
192  result.fields.sn.bd, result.fields.sn.swif, s,
193  l2fib_entry_result_is_set_STATIC (&result) ? "*" : "-",
194  l2fib_entry_result_is_set_FILTER (&result) ? "*" : "-",
195  l2fib_entry_result_is_set_BVI (&result) ? "*" : "-",
197  ctx->vnm, result.fields.sw_if_index);
198  vec_free (s);
199  }
200 }
201 
202 /** Display the contents of the l2fib. */
203 static clib_error_t *
205  unformat_input_t * input, vlib_cli_command_t * cmd)
206 {
207  bd_main_t *bdm = &bd_main;
208  l2fib_main_t *msm = &l2fib_main;
209  u8 raw = 0;
210  u32 bd_id;
212  .first_entry = 1,
213  .bd_index = ~0,
214  .now = (u8) (vlib_time_now (vm) / 60),
215  .vm = vm,
216  .vnm = msm->vnet_main,
217  };
218 
220  {
221  if (unformat (input, "raw"))
222  {
223  raw = 1;
224  ctx.verbose = 0;
225  break;
226  }
227  else if (unformat (input, "verbose"))
228  ctx.verbose = 1;
229  else if (unformat (input, "all"))
230  ctx.verbose = 1;
231  else if (unformat (input, "bd_index %d", &ctx.bd_index))
232  ctx.verbose = 1;
233  else if (unformat (input, "learn"))
234  {
235  ctx.add = 0;
236  ctx.learn = 1;
237  ctx.verbose = 1;
238  }
239  else if (unformat (input, "add"))
240  {
241  ctx.learn = 0;
242  ctx.add = 1;
243  ctx.verbose = 1;
244  }
245  else if (unformat (input, "bd_id %d", &bd_id))
246  {
247  uword *p = hash_get (bdm->bd_index_by_bd_id, bd_id);
248  if (p)
249  {
250  ctx.verbose = 1;
251  ctx.bd_index = p[0];
252  }
253  else
254  return clib_error_return (0,
255  "bridge domain id %d doesn't exist\n",
256  bd_id);
257  }
258  else
259  break;
260  }
261 
263  (&msm->mac_table, l2fib_show_walk_cb, &ctx);
264 
265  if (ctx.total_entries == 0)
266  vlib_cli_output (vm, "no l2fib entries");
267  else
268  {
270  vlib_cli_output (vm, "L2FIB total/learned entries: %d/%d "
271  "Last scan time: %.4esec Learn limit: %d ",
274  if (lm->client_pid)
275  vlib_cli_output (vm, "L2MAC events client PID: %d "
276  "Last e-scan time: %.4esec Delay: %.2esec "
277  "Max macs in event: %d",
278  lm->client_pid, msm->evt_scan_duration,
280  }
281 
282  if (raw)
283  vlib_cli_output (vm, "Raw Hash Table:\n%U\n",
284  BV (format_bihash), &msm->mac_table, 1 /* verbose */ );
285 
286  return 0;
287 }
288 
289 /*?
290  * This command displays the MAC Address entries of the L2 FIB table.
291  * Output can be filtered to just get the number of MAC Addresses or display
292  * each MAC Address for all bridge domains or just a single bridge domain.
293  *
294  * @cliexpar
295  * Example of how to display the number of MAC Address entries in the L2
296  * FIB table:
297  * @cliexstart{show l2fib}
298  * 3 l2fib entries
299  * @cliexend
300  * Example of how to display all the MAC Address entries in the L2
301  * FIB table:
302  * @cliexstart{show l2fib all}
303  * Mac Address BD Idx Interface Index static filter bvi refresh timestamp
304  * 52:54:00:53:18:33 1 GigabitEthernet0/8/0.200 3 0 0 0 0 0
305  * 52:54:00:53:18:55 1 GigabitEthernet0/8/0.200 3 1 0 0 0 0
306  * 52:54:00:53:18:77 1 N/A -1 1 1 0 0 0
307  * 3 l2fib entries
308  * @cliexend
309 ?*/
310 /* *INDENT-OFF* */
311 VLIB_CLI_COMMAND (show_l2fib_cli, static) = {
312  .path = "show l2fib",
313  .short_help = "show l2fib [all] | [bd_id <nn> | bd_index <nn>] [learn | add] | [raw]",
314  .function = show_l2fib,
315 };
316 /* *INDENT-ON* */
317 
318 
319 /* Remove all entries from the l2fib */
320 void
322 {
323  l2fib_main_t *mp = &l2fib_main;
324 
325  /* Remove all entries */
326  BV (clib_bihash_free) (&mp->mac_table);
327  BV (clib_bihash_init) (&mp->mac_table, "l2fib mac table",
330 }
331 
332 /** Clear all entries in L2FIB.
333  * @TODO: Later we may want a way to remove only the non-static entries
334  */
335 static clib_error_t *
337  unformat_input_t * input, vlib_cli_command_t * cmd)
338 {
340  return 0;
341 }
342 
343 /*?
344  * This command clears all the MAC Address entries from the L2 FIB table.
345  *
346  * @cliexpar
347  * Example of how to clear the L2 FIB Table:
348  * @cliexcmd{clear l2fib}
349  * Example to show the L2 FIB Table has been cleared:
350  * @cliexstart{show l2fib verbose}
351  * no l2fib entries
352  * @cliexend
353 ?*/
354 /* *INDENT-OFF* */
355 VLIB_CLI_COMMAND (clear_l2fib_cli, static) = {
356  .path = "clear l2fib",
357  .short_help = "clear l2fib",
358  .function = clear_l2fib,
359 };
360 /* *INDENT-ON* */
361 
362 static inline l2fib_seq_num_t
364 {
365  l2_bridge_domain_t *bd_config = l2input_bd_config (bd_index);
366  /* *INDENT-OFF* */
367  return (l2fib_seq_num_t) {
368  .swif = *l2fib_swif_seq_num (sw_if_index),
369  .bd = bd_config->seq_num,
370  };
371  /* *INDENT-ON* */
372 }
373 
374 /**
375  * Add an entry to the l2fib.
376  * If the entry already exists then overwrite it
377  */
378 void
381 {
382  l2fib_entry_key_t key;
383  l2fib_entry_result_t result;
384  __attribute__ ((unused)) u32 bucket_contents;
387  BVT (clib_bihash_kv) kv;
388 
389  /* set up key */
390  key.raw = l2fib_make_key (mac, bd_index);
391 
392  /* check if entry already exist */
393  if (BV (clib_bihash_search) (&fm->mac_table, &kv, &kv))
394  {
395  /* decrement counter if overwriting a learned mac */
396  result.raw = kv.value;
397  if ((!l2fib_entry_result_is_set_AGE_NOT (&result))
398  && (lm->global_learn_count))
399  lm->global_learn_count--;
400  }
401 
402  /* set up result */
403  result.raw = 0; /* clear all fields */
404  result.fields.sw_if_index = sw_if_index;
405  result.fields.flags = flags;
406 
407  /* no aging for provisioned entry */
408  l2fib_entry_result_set_AGE_NOT (&result);
409 
410  kv.key = key.raw;
411  kv.value = result.raw;
412 
413  BV (clib_bihash_add_del) (&fm->mac_table, &kv, 1 /* is_add */ );
414 }
415 
416 /**
417  * Add an entry to the L2FIB.
418  * The CLI format is:
419  * l2fib add <mac> <bd> <intf> [static] [bvi]
420  * l2fib add <mac> <bd> filter
421  * Note that filter and bvi entries are always static
422  */
423 static clib_error_t *
425  unformat_input_t * input, vlib_cli_command_t * cmd)
426 {
427  bd_main_t *bdm = &bd_main;
428  vnet_main_t *vnm = vnet_get_main ();
429  clib_error_t *error = 0;
430  u8 mac[6];
431  u32 bd_id;
432  u32 bd_index;
433  u32 sw_if_index = ~0;
434  uword *p;
436 
438 
439  if (!unformat (input, "%U", unformat_ethernet_address, mac))
440  {
441  error = clib_error_return (0, "expected mac address `%U'",
442  format_unformat_error, input);
443  goto done;
444  }
445 
446  if (!unformat (input, "%d", &bd_id))
447  {
448  error = clib_error_return (0, "expected bridge domain ID `%U'",
449  format_unformat_error, input);
450  goto done;
451  }
452 
453  p = hash_get (bdm->bd_index_by_bd_id, bd_id);
454  if (!p)
455  {
456  error = clib_error_return (0, "bridge domain ID %d invalid", bd_id);
457  goto done;
458  }
459  bd_index = p[0];
460 
461  if (unformat (input, "filter"))
462  {
463  l2fib_add_filter_entry (mac, bd_index);
464  return 0;
465  }
466 
467  if (!unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index))
468  {
469  error = clib_error_return (0, "unknown interface `%U'",
470  format_unformat_error, input);
471  goto done;
472  }
473 
474  if (unformat (input, "static"))
475  flags |= L2FIB_ENTRY_RESULT_FLAG_STATIC;
476  else if (unformat (input, "bvi"))
477  flags |= (L2FIB_ENTRY_RESULT_FLAG_STATIC | L2FIB_ENTRY_RESULT_FLAG_BVI);
478 
480  {
481  error = clib_error_return (0, "Interface sw_if_index %d not in L2 mode",
482  sw_if_index);
483  goto done;
484  }
485 
486  l2fib_add_entry (mac, bd_index, sw_if_index, flags);
487 
488 done:
489  return error;
490 }
491 
492 /*?
493  * This command adds a MAC Address entry to the L2 FIB table
494  * of an existing bridge-domain. The MAC Address can be static
495  * or dynamic. This command also allows a filter to be added,
496  * such that packets with given MAC Addresses (source mac or
497  * destination mac match) are dropped.
498  *
499  * @cliexpar
500  * Example of how to add a dynamic MAC Address entry to the L2 FIB table
501  * of a bridge-domain (where 200 is the bridge-domain-id):
502  * @cliexcmd{l2fib add 52:54:00:53:18:33 200 GigabitEthernet0/8/0.200}
503  * Example of how to add a static MAC Address entry to the L2 FIB table
504  * of a bridge-domain (where 200 is the bridge-domain-id):
505  * @cliexcmd{l2fib add 52:54:00:53:18:55 200 GigabitEthernet0/8/0.200 static}
506  * Example of how to add a filter such that a packet with the given MAC
507  * Address will be dropped in a given bridge-domain (where 200 is the
508  * bridge-domain-id):
509  * @cliexcmd{l2fib add 52:54:00:53:18:77 200 filter}
510  * Example of show command of the provisioned MAC Addresses and filters:
511  * @cliexstart{show l2fib verbose}
512  * Mac Address BD Idx Interface Index static filter bvi refresh timestamp
513  * 52:54:00:53:18:33 1 GigabitEthernet0/8/0.200 3 0 0 0 0 0
514  * 52:54:00:53:18:55 1 GigabitEthernet0/8/0.200 3 1 0 0 0 0
515  * 52:54:00:53:18:77 1 N/A -1 1 1 0 0 0
516  * 3 l2fib entries
517  * @cliexend
518 ?*/
519 /* *INDENT-OFF* */
520 VLIB_CLI_COMMAND (l2fib_add_cli, static) = {
521  .path = "l2fib add",
522  .short_help = "l2fib add <mac> <bridge-domain-id> filter | <intf> [static | bvi]",
523  .function = l2fib_add,
524 };
525 /* *INDENT-ON* */
526 
527 
528 static clib_error_t *
530  unformat_input_t * input, vlib_cli_command_t * cmd)
531 {
532  clib_error_t *error = 0;
533  u8 mac[6], save_mac[6];
534  u32 bd_index = 0;
535  u32 sw_if_index = 8;
536  u32 is_add = 0;
537  u32 is_del = 0;
538  u32 is_check = 0;
539  u32 count = 1;
540  int mac_set = 0;
541  int i;
542 
544  {
545  if (unformat (input, "mac %U", unformat_ethernet_address, mac))
546  mac_set = 1;
547  else if (unformat (input, "add"))
548  is_add = 1;
549  else if (unformat (input, "del"))
550  is_del = 1;
551  else if (unformat (input, "check"))
552  is_check = 1;
553  else if (unformat (input, "count %d", &count))
554  ;
555  else
556  break;
557  }
558 
559  if (mac_set == 0)
560  return clib_error_return (0, "mac not set");
561 
562  if (is_add == 0 && is_del == 0 && is_check == 0)
563  return clib_error_return (0,
564  "noop: pick at least one of (add,del,check)");
565 
566  clib_memcpy (save_mac, mac, 6);
567 
568  if (is_add)
569  {
570  for (i = 0; i < count; i++)
571  {
572  l2fib_add_entry (mac, bd_index, sw_if_index,
574  incr_mac_address (mac);
575  }
576  }
577 
578  if (is_check)
579  {
580  BVT (clib_bihash_kv) kv;
581  l2fib_main_t *mp = &l2fib_main;
582 
583  clib_memcpy (mac, save_mac, 6);
584 
585  for (i = 0; i < count; i++)
586  {
587  kv.key = l2fib_make_key (mac, bd_index);
588  if (BV (clib_bihash_search) (&mp->mac_table, &kv, &kv))
589  {
590  clib_warning ("key %U AWOL", format_ethernet_address, mac);
591  break;
592  }
593  incr_mac_address (mac);
594  }
595  }
596 
597  if (is_del)
598  {
599  clib_memcpy (mac, save_mac, 6);
600 
601  for (i = 0; i < count; i++)
602  {
603  l2fib_del_entry (mac, bd_index, 0);
604  incr_mac_address (mac);
605  }
606  }
607 
608  return error;
609 }
610 
611 /*?
612  * The set of '<em>test l2fib</em>' commands allow the L2 FIB table of the default
613  * bridge domain (bridge-domain-id of 0) to be modified.
614  *
615  * @cliexpar
616  * @parblock
617  * Example of how to add a set of 4 sequential MAC Address entries to L2
618  * FIB table of the default bridge-domain:
619  * @cliexcmd{test l2fib add mac 52:54:00:53:00:00 count 4}
620  *
621  * Show the set of 4 sequential MAC Address entries that were added:
622  * @cliexstart{show l2fib verbose}
623  * Mac Address BD Idx Interface Index static filter bvi refresh timestamp
624  * 52:54:00:53:00:00 0 GigabitEthernet0/8/0.300 8 0 0 0 0 0
625  * 52:54:00:53:00:01 0 GigabitEthernet0/8/0.300 8 0 0 0 0 0
626  * 52:54:00:53:00:03 0 GigabitEthernet0/8/0.300 8 0 0 0 0 0
627  * 52:54:00:53:00:02 0 GigabitEthernet0/8/0.300 8 0 0 0 0 0
628  * 4 l2fib entries
629  * @cliexend
630  *
631  * Example of how to check that the set of 4 sequential MAC Address
632  * entries were added to L2 FIB table of the default
633  * bridge-domain. Used a count of 5 to produce an error:
634  *
635  * @cliexcmd{test l2fib check mac 52:54:00:53:00:00 count 5}
636  * The output of the check command is in the log files. Log file
637  * location may vary based on your OS and Version:
638  *
639  * <b><em># tail -f /var/log/messages | grep l2fib_test_command_fn</em></b>
640  *
641  * Sep 7 17:15:24 localhost vnet[4952]: l2fib_test_command_fn:446: key 52:54:00:53:00:04 AWOL
642  *
643  * Example of how to delete a set of 4 sequential MAC Address entries
644  * from L2 FIB table of the default bridge-domain:
645  * @cliexcmd{test l2fib del mac 52:54:00:53:00:00 count 4}
646  * @endparblock
647 ?*/
648 /* *INDENT-OFF* */
649 VLIB_CLI_COMMAND (l2fib_test_command, static) = {
650  .path = "test l2fib",
651  .short_help = "test l2fib [add|del|check] mac <base-addr> count <nn>",
652  .function = l2fib_test_command_fn,
653 };
654 /* *INDENT-ON* */
655 
656 
657 /**
658  * Delete an entry from the l2fib.
659  * Return 0 if the entry was deleted, or 1 it was not found or if
660  * sw_if_index is non-zero and does not match that in the entry.
661  */
662 u32
664 {
665  l2fib_entry_result_t result;
666  l2fib_main_t *mp = &l2fib_main;
667  BVT (clib_bihash_kv) kv;
668 
669  /* set up key */
670  kv.key = l2fib_make_key (mac, bd_index);
671 
672  if (BV (clib_bihash_search) (&mp->mac_table, &kv, &kv))
673  return 1;
674 
675  result.raw = kv.value;
676 
677  /* check if sw_if_index of entry match */
678  if ((sw_if_index != 0) && (sw_if_index != result.fields.sw_if_index))
679  return 1;
680 
681  /* decrement counter if dynamically learned mac */
682  if ((!l2fib_entry_result_is_set_AGE_NOT (&result)) &&
685 
686  /* Remove entry from hash table */
687  BV (clib_bihash_add_del) (&mp->mac_table, &kv, 0 /* is_add */ );
688  return 0;
689 }
690 
691 /**
692  * Delete an entry from the L2FIB.
693  * The CLI format is:
694  * l2fib del <mac> <bd-id>
695  */
696 static clib_error_t *
698  unformat_input_t * input, vlib_cli_command_t * cmd)
699 {
700  bd_main_t *bdm = &bd_main;
701  clib_error_t *error = 0;
702  u8 mac[6];
703  u32 bd_id;
704  u32 bd_index;
705  uword *p;
706 
707  if (!unformat (input, "%U", unformat_ethernet_address, mac))
708  {
709  error = clib_error_return (0, "expected mac address `%U'",
710  format_unformat_error, input);
711  goto done;
712  }
713 
714  if (!unformat (input, "%d", &bd_id))
715  {
716  error = clib_error_return (0, "expected bridge domain ID `%U'",
717  format_unformat_error, input);
718  goto done;
719  }
720 
721  p = hash_get (bdm->bd_index_by_bd_id, bd_id);
722  if (!p)
723  {
724  error = clib_error_return (0, "bridge domain ID %d invalid", bd_id);
725  goto done;
726  }
727  bd_index = p[0];
728 
729  /* Delete the entry */
730  if (l2fib_del_entry (mac, bd_index, 0))
731  {
732  error = clib_error_return (0, "mac entry not found");
733  goto done;
734  }
735 
736 done:
737  return error;
738 }
739 
740 /*?
741  * This command deletes an existing MAC Address entry from the L2 FIB
742  * table of an existing bridge-domain.
743  *
744  * @cliexpar
745  * Example of how to delete a MAC Address entry from the L2 FIB table of a bridge-domain (where 200 is the bridge-domain-id):
746  * @cliexcmd{l2fib del 52:54:00:53:18:33 200}
747 ?*/
748 /* *INDENT-OFF* */
749 VLIB_CLI_COMMAND (l2fib_del_cli, static) = {
750  .path = "l2fib del",
751  .short_help = "l2fib del <mac> <bridge-domain-id> []",
752  .function = l2fib_del,
753 };
754 /* *INDENT-ON* */
755 
756 /**
757  Kick off ager to scan MACs to age/delete MAC entries
758 */
759 void
761 {
763 
764  /* check if there is at least one bd with mac aging enabled */
765  l2_bridge_domain_t *bd_config;
766  vec_foreach (bd_config, l2input_main.bd_configs)
767  {
768  if (bd_config->bd_id != ~0 && bd_config->mac_age != 0)
769  {
771  break;
772  }
773  }
774 
775  vlib_process_signal_event (vm, l2fib_mac_age_scanner_process_node.index,
776  evt, 0);
777 }
778 
779 /**
780  Flush all non static MACs from an interface
781 */
782 void
784 {
785  *l2fib_swif_seq_num (sw_if_index) += 1;
787 }
788 
789 /**
790  Flush all non static MACs in a bridge domain
791 */
792 void
794 {
795  l2_bridge_domain_t *bd_config = l2input_bd_config (bd_index);
796  bd_config->seq_num += 1;
798 }
799 
800 /**
801  Flush all non static MACs - flushes all valid BDs
802 */
803 void
805 {
806  l2_bridge_domain_t *bd_config;
807  vec_foreach (bd_config, l2input_main.bd_configs)
808  if (bd_is_valid (bd_config))
809  bd_config->seq_num += 1;
810 
812 }
813 
814 
815 /**
816  Flush MACs, except static ones, associated with an interface
817  The CLI format is:
818  l2fib flush-mac interface <if-name>
819 */
820 static clib_error_t *
822  unformat_input_t * input, vlib_cli_command_t * cmd)
823 {
824  vnet_main_t *vnm = vnet_get_main ();
825  clib_error_t *error = 0;
827 
828  if (!unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index))
829  {
830  error = clib_error_return (0, "unknown interface `%U'",
831  format_unformat_error, input);
832  goto done;
833  }
834 
835  l2fib_flush_int_mac (vm, sw_if_index);
836 
837 done:
838  return error;
839 }
840 
841 /**
842  Flush all MACs, except static ones
843  The CLI format is:
844  l2fib flush-mac all
845 */
846 static clib_error_t *
848  unformat_input_t * input, vlib_cli_command_t * cmd)
849 {
850  l2fib_flush_all_mac (vm);
851  return 0;
852 }
853 
854 /*?
855  * This command kick off ager to delete all existing MAC Address entries,
856  * except static ones, associated with an interface from the L2 FIB table.
857  *
858  * @cliexpar
859  * Example of how to flush MAC Address entries learned on an interface from the L2 FIB table:
860  * @cliexcmd{l2fib flush-mac interface GigabitEthernet2/1/0}
861 ?*/
862 /* *INDENT-OFF* */
863 VLIB_CLI_COMMAND (l2fib_flush_mac_all_cli, static) = {
864  .path = "l2fib flush-mac all",
865  .short_help = "l2fib flush-mac all",
866  .function = l2fib_flush_mac_all,
867 };
868 /* *INDENT-ON* */
869 
870 /*?
871  * This command kick off ager to delete all existing MAC Address entries,
872  * except static ones, associated with an interface from the L2 FIB table.
873  *
874  * @cliexpar
875  * Example of how to flush MAC Address entries learned on an interface from the L2 FIB table:
876  * @cliexcmd{l2fib flush-mac interface GigabitEthernet2/1/0}
877 ?*/
878 /* *INDENT-OFF* */
879 VLIB_CLI_COMMAND (l2fib_flush_mac_int_cli, static) = {
880  .path = "l2fib flush-mac interface",
881  .short_help = "l2fib flush-mac interface <if-name>",
882  .function = l2fib_flush_mac_int,
883 };
884 /* *INDENT-ON* */
885 
886 /**
887  Flush bridge-domain MACs except static ones.
888  The CLI format is:
889  l2fib flush-mac bridge-domain <bd-id>
890 */
891 static clib_error_t *
893  unformat_input_t * input, vlib_cli_command_t * cmd)
894 {
895  bd_main_t *bdm = &bd_main;
896  clib_error_t *error = 0;
897  u32 bd_index, bd_id;
898  uword *p;
899 
900  if (!unformat (input, "%d", &bd_id))
901  {
902  error = clib_error_return (0, "expecting bridge-domain id but got `%U'",
903  format_unformat_error, input);
904  goto done;
905  }
906 
907  p = hash_get (bdm->bd_index_by_bd_id, bd_id);
908  if (p)
909  bd_index = *p;
910  else
911  return clib_error_return (0, "No such bridge domain %d", bd_id);
912 
913  l2fib_flush_bd_mac (vm, bd_index);
914 
915 done:
916  return error;
917 }
918 
919 /*?
920  * This command kick off ager to delete all existing MAC Address entries,
921  * except static ones, in a bridge domain from the L2 FIB table.
922  *
923  * @cliexpar
924  * Example of how to flush MAC Address entries learned in a bridge domain from the L2 FIB table:
925  * @cliexcmd{l2fib flush-mac bridge-domain 1000}
926 ?*/
927 /* *INDENT-OFF* */
928 VLIB_CLI_COMMAND (l2fib_flush_mac_bd_cli, static) = {
929  .path = "l2fib flush-mac bridge-domain",
930  .short_help = "l2fib flush-mac bridge-domain <bd-id>",
931  .function = l2fib_flush_mac_bd,
932 };
933 /* *INDENT-ON* */
934 
935 clib_error_t *
937 {
938  l2_input_config_t *config = l2input_intf_config (sw_if_index);
939  if ((flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) == 0 && config->bridge)
940  l2fib_flush_int_mac (vnm->vlib_main, sw_if_index);
941  return 0;
942 }
943 
945 
946 BVT (clib_bihash) * get_mac_table (void)
947 {
948  l2fib_main_t *mp = &l2fib_main;
949  return &mp->mac_table;
950 }
951 
953 allocate_mac_evt_buf (u32 client, u32 client_index)
954 {
957  (sizeof (*mp) + (fm->max_macs_in_event * sizeof (vl_api_mac_entry_t)));
958  mp->_vl_msg_id = htons (VL_API_L2_MACS_EVENT);
959  mp->pid = htonl (client);
960  mp->client_index = client_index;
961  return mp;
962 }
963 
965 l2fib_scan (vlib_main_t * vm, f64 start_time, u8 event_only)
966 {
969 
970  BVT (clib_bihash) * h = &fm->mac_table;
971  int i, j, k;
972  f64 last_start = start_time;
973  f64 accum_t = 0;
974  f64 delta_t = 0;
975  u32 evt_idx = 0;
976  u32 learn_count = 0;
977  u32 client = lm->client_pid;
978  u32 cl_idx = lm->client_index;
979  vl_api_l2_macs_event_t *mp = 0;
980  vl_api_registration_t *reg = 0;
981 
982  if (client)
983  {
984  mp = allocate_mac_evt_buf (client, cl_idx);
986  }
987 
988  for (i = 0; i < h->nbuckets; i++)
989  {
990  /* allow no more than 20us without a pause */
991  delta_t = vlib_time_now (vm) - last_start;
992  if (delta_t > 20e-6)
993  {
994  vlib_process_suspend (vm, 100e-6); /* suspend for 100 us */
995  last_start = vlib_time_now (vm);
996  accum_t += delta_t;
997  }
998 
999  if (i < (h->nbuckets - 3))
1000  {
1001  BVT (clib_bihash_bucket) * b = &h->buckets[i + 3];
1003  b = &h->buckets[i + 1];
1004  if (b->offset)
1005  {
1006  BVT (clib_bihash_value) * v =
1007  BV (clib_bihash_get_value) (h, b->offset);
1009  }
1010  }
1011 
1012  BVT (clib_bihash_bucket) * b = &h->buckets[i];
1013  if (b->offset == 0)
1014  continue;
1015  BVT (clib_bihash_value) * v = BV (clib_bihash_get_value) (h, b->offset);
1016  for (j = 0; j < (1 << b->log2_pages); j++)
1017  {
1018  for (k = 0; k < BIHASH_KVP_PER_PAGE; k++)
1019  {
1020  if (v->kvp[k].key == ~0ULL && v->kvp[k].value == ~0ULL)
1021  continue;
1022 
1023  l2fib_entry_key_t key = {.raw = v->kvp[k].key };
1024  l2fib_entry_result_t result = {.raw = v->kvp[k].value };
1025 
1026  if (!l2fib_entry_result_is_set_AGE_NOT (&result))
1027  learn_count++;
1028 
1029  if (client)
1030  {
1031  if (PREDICT_FALSE (evt_idx >= fm->max_macs_in_event))
1032  {
1033  /* event message full, send it and start a new one */
1034  if (reg && vl_api_can_send_msg (reg))
1035  {
1036  mp->n_macs = htonl (evt_idx);
1037  vl_api_send_msg (reg, (u8 *) mp);
1038  mp = allocate_mac_evt_buf (client, cl_idx);
1039  }
1040  else
1041  {
1042  if (reg)
1043  clib_warning ("MAC event to pid %d queue stuffed!"
1044  " %d MAC entries lost", client,
1045  evt_idx);
1046  }
1047  evt_idx = 0;
1048  }
1049 
1050  if (l2fib_entry_result_is_set_LRN_EVT (&result))
1051  {
1052  /* copy mac entry to event msg */
1053  clib_memcpy (mp->mac[evt_idx].mac_addr, key.fields.mac,
1054  6);
1055  mp->mac[evt_idx].action =
1056  l2fib_entry_result_is_set_LRN_MOV (&result) ?
1058  mp->mac[evt_idx].sw_if_index =
1059  htonl (result.fields.sw_if_index);
1060  /* clear event bits and update mac entry */
1061  l2fib_entry_result_clear_LRN_EVT (&result);
1062  l2fib_entry_result_clear_LRN_MOV (&result);
1063  BVT (clib_bihash_kv) kv;
1064  kv.key = key.raw;
1065  kv.value = result.raw;
1066  BV (clib_bihash_add_del) (&fm->mac_table, &kv, 1);
1067  evt_idx++;
1068  continue; /* skip aging */
1069  }
1070  }
1071 
1072  if (event_only || l2fib_entry_result_is_set_AGE_NOT (&result))
1073  continue; /* skip aging - static_mac always age_not */
1074 
1075  /* start aging processing */
1076  u32 bd_index = key.fields.bd_index;
1077  u32 sw_if_index = result.fields.sw_if_index;
1078  u16 sn = l2fib_cur_seq_num (bd_index, sw_if_index).as_u16;
1079  if (result.fields.sn.as_u16 != sn)
1080  goto age_out; /* stale mac */
1081 
1082  l2_bridge_domain_t *bd_config =
1084 
1085  if (bd_config->mac_age == 0)
1086  continue; /* skip aging */
1087 
1088  i16 delta = (u8) (start_time / 60) - result.fields.timestamp;
1089  delta += delta < 0 ? 256 : 0;
1090 
1091  if (delta < bd_config->mac_age)
1092  continue; /* still valid */
1093 
1094  age_out:
1095  if (client)
1096  {
1097  /* copy mac entry to event msg */
1098  clib_memcpy (mp->mac[evt_idx].mac_addr, key.fields.mac, 6);
1099  mp->mac[evt_idx].action = MAC_EVENT_ACTION_DELETE;
1100  mp->mac[evt_idx].sw_if_index =
1101  htonl (result.fields.sw_if_index);
1102  evt_idx++;
1103  }
1104  /* delete mac entry */
1105  BVT (clib_bihash_kv) kv;
1106  kv.key = key.raw;
1107  BV (clib_bihash_add_del) (&fm->mac_table, &kv, 0);
1108  learn_count--;
1109  /*
1110  * Note: we may have just freed the bucket's backing
1111  * storage, so check right here...
1112  */
1113  if (b->offset == 0)
1114  goto doublebreak;
1115  }
1116  v++;
1117  }
1118  doublebreak:
1119  ;
1120  }
1121 
1122  /* keep learn count consistent */
1123  l2learn_main.global_learn_count = learn_count;
1124 
1125  if (mp)
1126  {
1127  /* send any outstanding mac event message else free message buffer */
1128  if (evt_idx)
1129  {
1130  if (reg && vl_api_can_send_msg (reg))
1131  {
1132  mp->n_macs = htonl (evt_idx);
1133  vl_api_send_msg (reg, (u8 *) mp);
1134  }
1135  else
1136  {
1137  if (reg)
1138  clib_warning ("MAC event to pid %d queue stuffed!"
1139  " %d MAC entries lost", client, evt_idx);
1140  vl_msg_api_free (mp);
1141  }
1142  }
1143  else
1144  vl_msg_api_free (mp);
1145  }
1146  return delta_t + accum_t;
1147 }
1148 
1149 static uword
1151  vlib_frame_t * f)
1152 {
1153  uword event_type, *event_data = 0;
1156  bool enabled = 0;
1157  f64 start_time, next_age_scan_time = CLIB_TIME_MAX;
1158 
1159  while (1)
1160  {
1161  if (lm->client_pid)
1163  else if (enabled)
1164  {
1165  f64 t = next_age_scan_time - vlib_time_now (vm);
1167  }
1168  else
1170 
1171  event_type = vlib_process_get_events (vm, &event_data);
1172  vec_reset_length (event_data);
1173 
1174  start_time = vlib_time_now (vm);
1175  enum
1176  { SCAN_MAC_AGE, SCAN_MAC_EVENT, SCAN_DISABLE } scan = SCAN_MAC_AGE;
1177 
1178  switch (event_type)
1179  {
1180  case ~0: /* timer expired */
1181  if (lm->client_pid != 0 && start_time < next_age_scan_time)
1182  scan = SCAN_MAC_EVENT;
1183  break;
1184 
1186  enabled = 1;
1187  break;
1188 
1190  enabled = 0;
1191  scan = SCAN_DISABLE;
1192  break;
1193 
1195  break;
1196 
1197  default:
1198  ASSERT (0);
1199  }
1200 
1201  if (scan == SCAN_MAC_EVENT)
1202  l2fib_main.evt_scan_duration = l2fib_scan (vm, start_time, 1);
1203  else
1204  {
1205  if (scan == SCAN_MAC_AGE)
1206  l2fib_main.age_scan_duration = l2fib_scan (vm, start_time, 0);
1207  if (scan == SCAN_DISABLE)
1208  {
1209  l2fib_main.age_scan_duration = 0;
1210  l2fib_main.evt_scan_duration = 0;
1211  }
1212  /* schedule next scan */
1213  if (enabled)
1214  next_age_scan_time = start_time + L2FIB_AGE_SCAN_INTERVAL;
1215  else
1216  next_age_scan_time = CLIB_TIME_MAX;
1217  }
1218  }
1219  return 0;
1220 }
1221 
1222 /* *INDENT-OFF* */
1223 VLIB_REGISTER_NODE (l2fib_mac_age_scanner_process_node) = {
1224  .function = l2fib_mac_age_scanner_process,
1225  .type = VLIB_NODE_TYPE_PROCESS,
1226  .name = "l2fib-mac-age-scanner-process",
1227 };
1228 /* *INDENT-ON* */
1229 
1230 clib_error_t *
1232 {
1233  l2fib_main_t *mp = &l2fib_main;
1234  l2fib_entry_key_t test_key;
1235  u8 test_mac[6];
1236 
1237  mp->vlib_main = vm;
1238  mp->vnet_main = vnet_get_main ();
1239 
1240  /* Create the hash table */
1241  BV (clib_bihash_init) (&mp->mac_table, "l2fib mac table",
1243 
1244  /* verify the key constructor is good, since it is endian-sensitive */
1245  memset (test_mac, 0, sizeof (test_mac));
1246  test_mac[0] = 0x11;
1247  test_key.raw = 0;
1248  test_key.raw = l2fib_make_key ((u8 *) & test_mac, 0x1234);
1249  ASSERT (test_key.fields.mac[0] == 0x11);
1250  ASSERT (test_key.fields.bd_index == 0x1234);
1251 
1252  return 0;
1253 }
1254 
1256 
1257 /*
1258  * fd.io coding-style-patch-verification: ON
1259  *
1260  * Local Variables:
1261  * eval: (c-set-style "gnu")
1262  * End:
1263  */
static_always_inline void * allocate_mac_evt_buf(u32 client, u32 client_index)
Definition: l2_fib.c:953
f64 evt_scan_duration
Definition: l2_fib.h:52
static clib_error_t * l2fib_test_command_fn(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: l2_fib.c:529
u32 global_learn_count
Definition: l2_learn.h:32
l2_input_config_t * configs
Definition: l2_input.h:61
u8 * format_vnet_sw_if_index_name_with_NA(u8 *s, va_list *args)
Format sw_if_index.
Definition: l2_fib.c:70
vlib_main_t * vlib_main
Definition: l2_fib.h:62
vnet_main_t * vnm
Definition: l2_fib.c:131
static f64 vlib_process_wait_for_event_or_clock(vlib_main_t *vm, f64 dt)
Suspend a cooperative multi-tasking thread Waits for an event, or for the indicated number of seconds...
Definition: node_funcs.h:699
#define BIHASH_KVP_PER_PAGE
Definition: bihash_16_8.h:19
static uword * vlib_process_wait_for_event(vlib_main_t *vm)
Definition: node_funcs.h:619
vnet_main_t * vnet_get_main(void)
Definition: misc.c:47
vnet_main_t * vnet_main
Definition: l2_fib.h:63
void clib_bihash_free(clib_bihash *h)
Destroy a bounded index extensible hash table.
unsigned long u64
Definition: types.h:89
u64 raw
Definition: l2_fib.h:147
l2_input_config_t * l2input_intf_config(u32 sw_if_index)
Get a pointer to the config for the given interface.
Definition: l2_input.c:510
#define NULL
Definition: clib.h:57
static f64 vlib_time_now(vlib_main_t *vm)
Definition: main.h:227
static void vl_api_send_msg(vl_api_registration_t *rp, u8 *elem)
Definition: api.h:34
static void l2fib_show_walk_cb(BVT(clib_bihash_kv)*kvp, void *arg)
Definition: l2_fib.c:140
clib_error_t * l2fib_init(vlib_main_t *vm)
Definition: l2_fib.c:1231
#define vec_add1(V, E)
Add 1 element to end of vector (unspecified alignment).
Definition: vec.h:523
int i
static_always_inline u8 * l2fib_swif_seq_num(u32 sw_if_index)
Definition: l2_fib.h:472
uword unformat_user(unformat_input_t *input, unformat_function_t *func,...)
Definition: unformat.c:983
#define L2FIB_MEMORY_SIZE
Definition: l2_fib.h:28
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:419
unformat_function_t unformat_vnet_sw_interface
u32 max_macs_in_event
Definition: l2_fib.h:59
enum l2fib_entry_result_flags_t_ l2fib_entry_result_flags_t
vlib_main_t * vm
Definition: l2_fib.c:130
void * vl_msg_api_alloc(int nbytes)
static clib_error_t * l2fib_del(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Delete an entry from the L2FIB.
Definition: l2_fib.c:697
unsigned char u8
Definition: types.h:56
u8 action
Definition: l2.api:169
u32 client_index
Definition: l2_learn.h:39
Entry for learned or aged MAC in L2 MAC Events.
Definition: l2.api:165
#define vec_reset_length(v)
Reset vector length to zero NULL-pointer tolerant.
double f64
Definition: types.h:142
#define fm
Definition: l2_fib.h:135
static uword vlib_process_suspend(vlib_main_t *vm, f64 dt)
Suspend a vlib cooperative multi-tasking thread for a period of time.
Definition: node_funcs.h:448
static int vl_api_can_send_msg(vl_api_registration_t *rp)
Definition: api.h:47
#define L2FIB_AGE_SCAN_INTERVAL
Definition: l2_fib.h:31
l2learn_main_t l2learn_main
Definition: l2_learn.c:33
memset(h->entries, 0, sizeof(h->entries[0])*entries)
#define static_always_inline
Definition: clib.h:95
u8 * format_ethernet_address(u8 *s, va_list *args)
Definition: format.c:44
int clib_bihash_add_del(clib_bihash *h, clib_bihash_kv *add_v, int is_add)
Add or delete a (key,value) pair from a bi-hash table.
#define VLIB_INIT_FUNCTION(x)
Definition: init.h:163
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:542
u32 sw_if_index
Definition: vxlan_gbp.api:39
struct l2fib_entry_result_t_::@243::@245 fields
#define vec_elt_at_index(v, i)
Get vector value at index i checking that i is in bounds.
#define clib_error_return(e, args...)
Definition: error.h:99
void l2fib_add_entry(const u8 *mac, u32 bd_index, u32 sw_if_index, l2fib_entry_result_flags_t flags)
Add an entry to the l2fib.
Definition: l2_fib.c:379
unsigned int u32
Definition: types.h:88
L2 MAC event for a list of learned or aged MACs.
Definition: l2.api:179
uword * bd_index_by_bd_id
Definition: l2_bd.h:34
u32 sw_if_index
Definition: l2.api:167
void l2fib_start_ager_scan(vlib_main_t *vm)
Kick off ager to scan MACs to age/delete MAC entries.
Definition: l2_fib.c:760
#define hash_get(h, key)
Definition: hash.h:249
f64 event_scan_delay
Definition: l2_fib.h:56
format_function_t format_vnet_sw_interface_name
struct l2fib_dump_walk_ctx_t_ l2fib_dump_walk_ctx_t
vlib_main_t * vlib_main
Definition: vnet.h:80
static void vlib_process_signal_event(vlib_main_t *vm, uword node_index, uword type_opaque, uword data)
Definition: node_funcs.h:960
long ctx[MAX_CONNS]
Definition: main.c:144
#define v
Definition: acl.c:496
struct _unformat_input_t unformat_input_t
unsigned short u16
Definition: types.h:57
void l2fib_flush_bd_mac(vlib_main_t *vm, u32 bd_index)
Flush all non static MACs in a bridge domain.
Definition: l2_fib.c:793
#define PREDICT_FALSE(x)
Definition: clib.h:107
void l2fib_flush_all_mac(vlib_main_t *vm)
Flush all non static MACs - flushes all valid BDs.
Definition: l2_fib.c:804
l2fib_entry_key_t * l2fe_key
Definition: l2_fib.c:88
#define L2FIB_NUM_BUCKETS
Definition: l2_fib.h:27
static_always_inline f64 l2fib_scan(vlib_main_t *vm, f64 start_time, u8 event_only)
Definition: l2_fib.c:965
void clib_bihash_init(clib_bihash *h, char *name, u32 nbuckets, uword memory_size)
initialize a bounded index extensible hash table
l2fib_main_t l2fib_main
Definition: l2_fib.c:55
static u32 bd_is_valid(l2_bridge_domain_t *bd_config)
Definition: l2_bd.h:131
static void l2fib_dump_walk_cb(BVT(clib_bihash_kv)*kvp, void *arg)
Definition: l2_fib.c:93
u32 flags
Definition: vhost_user.h:115
static clib_error_t * clear_l2fib(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Clear all entries in L2FIB.
Definition: l2_fib.c:336
BVT(clib_bihash)
Definition: l2_fib.c:946
clib_error_t * l2fib_sw_interface_up_down(vnet_main_t *vnm, u32 sw_if_index, u32 flags)
Definition: l2_fib.c:936
static clib_error_t * show_l2fib(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Display the contents of the l2fib.
Definition: l2_fib.c:204
An API client registration, only in vpp/vlib.
Definition: api_common.h:44
void clib_bihash_foreach_key_value_pair(clib_bihash *h, void *callback, void *arg)
Visit active (key,value) pairs in a bi-hash table.
#define VLIB_REGISTER_NODE(x,...)
Definition: node.h:155
#define UNFORMAT_END_OF_INPUT
Definition: format.h:144
static clib_error_t * l2fib_flush_mac_all(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Flush all MACs, except static ones The CLI format is: l2fib flush-mac all.
Definition: l2_fib.c:847
u32 l2fib_del_entry(const u8 *mac, u32 bd_index, u32 sw_if_index)
Delete an entry from the l2fib.
Definition: l2_fib.c:663
#define CLIB_PREFETCH(addr, size, type)
Definition: cache.h:79
vlib_main_t * vm
Definition: buffer.c:294
static void incr_mac_address(u8 *mac)
Definition: l2_fib.c:58
#define vec_free(V)
Free vector&#39;s memory (no header).
Definition: vec.h:339
static clib_error_t * l2fib_flush_mac_int(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Flush MACs, except static ones, associated with an interface The CLI format is: l2fib flush-mac inter...
Definition: l2_fib.c:821
#define clib_warning(format, args...)
Definition: error.h:59
f64 age_scan_duration
Definition: l2_fib.h:53
#define clib_memcpy(a, b, c)
Definition: string.h:75
static vnet_sw_interface_t * vnet_get_sw_interface_safe(vnet_main_t *vnm, u32 sw_if_index)
static u64 l2fib_make_key(const u8 *mac_address, u16 bd_index)
make address sanitizer skip this: The 6-Bytes mac-address is cast into an 8-Bytes u64...
Definition: l2_fib.h:221
void l2fib_clear_table(void)
Definition: l2_fib.c:321
static l2fib_seq_num_t l2fib_cur_seq_num(u32 bd_index, u32 sw_if_index)
Definition: l2_fib.c:363
static_always_inline l2_bridge_domain_t * l2input_bd_config(u32 bd_index)
Definition: l2_input.h:85
static vl_api_registration_t * vl_api_client_index_to_registration(u32 index)
Definition: api.h:56
u8 mac_addr[6]
Definition: l2.api:168
#define VLIB_CLI_COMMAND(x,...)
Definition: cli.h:155
struct l2fib_entry_key_t::@235::@237 fields
uword unformat_ethernet_address(unformat_input_t *input, va_list *args)
Definition: format.c:233
#define ASSERT(truth)
#define CLIB_TIME_MAX
Definition: time.h:210
Definition: l2_fib.h:71
static uword l2fib_mac_age_scanner_process(vlib_main_t *vm, vlib_node_runtime_t *rt, vlib_frame_t *f)
Definition: l2_fib.c:1150
vl_api_mac_entry_t mac[n_macs]
Definition: l2.api:184
size_t count
Definition: vapi.c:46
VNET_SW_INTERFACE_ADMIN_UP_DOWN_FUNCTION(l2fib_sw_interface_up_down)
u32 global_learn_limit
Definition: l2_learn.h:35
void vl_msg_api_free(void *)
template key/value backing page structure
Definition: bihash_doc.h:44
static clib_error_t * l2fib_flush_mac_bd(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Flush bridge-domain MACs except static ones.
Definition: l2_fib.c:892
l2input_main_t l2input_main
Definition: l2_input.c:113
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
u64 uword
Definition: types.h:112
l2fib_entry_result_t * l2fe_res
Definition: l2_fib.c:89
l2_bridge_domain_t * bd_configs
Definition: l2_input.h:64
static void l2fib_add_filter_entry(const u8 *mac, u32 bd_index)
Definition: l2_fib.h:448
void l2fib_table_dump(u32 bd_index, l2fib_entry_key_t **l2fe_key, l2fib_entry_result_t **l2fe_res)
Definition: l2_fib.c:110
u8 * format_unformat_error(u8 *s, va_list *va)
Definition: unformat.c:91
#define vec_foreach(var, vec)
Vector iterator.
static void * clib_bihash_get_value(clib_bihash *h, uword offset)
Get pointer to value page given its clib mheap offset.
bd_main_t bd_main
Definition: l2_bd.c:44
#define CLIB_CACHE_LINE_BYTES
Definition: cache.h:59
static clib_error_t * l2fib_add(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Add an entry to the L2FIB.
Definition: l2_fib.c:424
u32 client_pid
Definition: l2_learn.h:38
vl_api_mac_address_t mac
Definition: gbp.api:31
void vlib_cli_output(vlib_main_t *vm, char *fmt,...)
Definition: cli.c:725
void l2fib_flush_int_mac(vlib_main_t *vm, u32 sw_if_index)
Flush all non static MACs from an interface.
Definition: l2_fib.c:783
struct l2fib_show_walk_ctx_t_ l2fib_show_walk_ctx_t
uword unformat(unformat_input_t *i, const char *fmt,...)
Definition: unformat.c:972
u64 raw
Definition: l2_fib.h:85
static uword unformat_check_input(unformat_input_t *i)
Definition: format.h:170
signed short i16
Definition: types.h:46