FD.io VPP  v18.10-34-gcce845e
Vector Packet Processing
l2_fwd.c
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1 /*
2  * l2_fwd.c : layer 2 forwarding using l2fib
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 #include <vlib/vlib.h>
19 #include <vnet/vnet.h>
20 #include <vnet/pg/pg.h>
21 #include <vnet/ethernet/ethernet.h>
22 #include <vlib/cli.h>
23 
24 #include <vnet/l2/l2_input.h>
25 #include <vnet/l2/l2_bvi.h>
26 #include <vnet/l2/l2_fwd.h>
27 #include <vnet/l2/l2_fib.h>
28 #include <vnet/l2/feat_bitmap.h>
29 
30 #include <vppinfra/error.h>
31 #include <vppinfra/hash.h>
32 #include <vppinfra/sparse_vec.h>
33 
34 
35 /**
36  * @file
37  * @brief Ethernet Forwarding.
38  *
39  * Code in this file handles forwarding Layer 2 packets. This file calls
40  * the FIB lookup, packet learning and the packet flooding as necessary.
41  * Packet is then sent to the next graph node.
42  */
43 
44 typedef struct
45 {
46 
47  /* Hash table */
48  BVT (clib_bihash) * mac_table;
49 
50  /* next node index for the L3 input node of each ethertype */
51  next_by_ethertype_t l3_next;
52 
53  /* Next nodes for each feature */
54  u32 feat_next_node_index[32];
55 
56  /* convenience variables */
59 } l2fwd_main_t;
60 
61 typedef struct
62 {
63  /* per-pkt trace data */
64  u8 src[6];
65  u8 dst[6];
69 
70 /* packet trace format function */
71 static u8 *
72 format_l2fwd_trace (u8 * s, va_list * args)
73 {
74  CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
75  CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
76  l2fwd_trace_t *t = va_arg (*args, l2fwd_trace_t *);
77 
78  s = format (s, "l2-fwd: sw_if_index %d dst %U src %U bd_index %d",
79  t->sw_if_index,
82  return s;
83 }
84 
85 #ifndef CLIB_MARCH_VARIANT
87 #else
89 #endif
90 
92 
93 #define foreach_l2fwd_error \
94 _(L2FWD, "L2 forward packets") \
95 _(FLOOD, "L2 forward misses") \
96 _(HIT, "L2 forward hits") \
97 _(BVI_BAD_MAC, "BVI L3 MAC mismatch") \
98 _(BVI_ETHERTYPE, "BVI packet with unhandled ethertype") \
99 _(FILTER_DROP, "Filter Mac Drop") \
100 _(REFLECT_DROP, "Reflection Drop") \
101 _(STALE_DROP, "Stale entry Drop")
102 
103 typedef enum
104 {
105 #define _(sym,str) L2FWD_ERROR_##sym,
107 #undef _
109 } l2fwd_error_t;
110 
111 static char *l2fwd_error_strings[] = {
112 #define _(sym,string) string,
114 #undef _
115 };
116 
117 typedef enum
118 {
122 } l2fwd_next_t;
123 
124 /** Forward one packet based on the mac table lookup result. */
125 
128  vlib_node_runtime_t * node,
129  l2fwd_main_t * msm,
130  vlib_error_main_t * em,
131  vlib_buffer_t * b0,
132  u32 sw_if_index0, l2fib_entry_result_t * result0, u16 * next0)
133 {
134  int try_flood = result0->raw == ~0;
135  int flood_error;
136 
137  if (PREDICT_FALSE (try_flood))
138  {
139  flood_error = L2FWD_ERROR_FLOOD;
140  }
141  else
142  {
143  /* lookup hit, forward packet */
144 #ifdef COUNTERS
145  em->counters[node_counter_base_index + L2FWD_ERROR_HIT] += 1;
146 #endif
147 
148  vnet_buffer (b0)->sw_if_index[VLIB_TX] = result0->fields.sw_if_index;
149  *next0 = L2FWD_NEXT_L2_OUTPUT;
150  int l2fib_seq_num_valid = 1;
151 
152  /* check l2fib seq num for stale entries */
153  if (!l2fib_entry_result_is_set_AGE_NOT (result0))
154  {
155  l2fib_seq_num_t in_sn = {.as_u16 = vnet_buffer (b0)->l2.l2fib_sn };
156  l2fib_seq_num_t expected_sn = {
157  .bd = in_sn.bd,
158  .swif = *l2fib_swif_seq_num (result0->fields.sw_if_index),
159  };
160  l2fib_seq_num_valid =
161  expected_sn.as_u16 == result0->fields.sn.as_u16;
162  }
163 
164  if (PREDICT_FALSE (!l2fib_seq_num_valid))
165  {
166  flood_error = L2FWD_ERROR_STALE_DROP;
167  try_flood = 1;
168  }
169  /* perform reflection check */
170  else if (PREDICT_FALSE (sw_if_index0 == result0->fields.sw_if_index))
171  {
172  b0->error = node->errors[L2FWD_ERROR_REFLECT_DROP];
173  *next0 = L2FWD_NEXT_DROP;
174  }
175  /* perform filter check */
176  else if (PREDICT_FALSE (l2fib_entry_result_is_set_FILTER (result0)))
177  {
178  b0->error = node->errors[L2FWD_ERROR_FILTER_DROP];
179  *next0 = L2FWD_NEXT_DROP;
180  }
181  /* perform BVI check */
182  else if (PREDICT_FALSE (l2fib_entry_result_is_set_BVI (result0)))
183  {
184  u32 rc;
185  rc = l2_to_bvi (vm,
186  msm->vnet_main,
187  b0,
189  &msm->l3_next, next0);
190 
191  if (PREDICT_FALSE (rc))
192  {
193  if (rc == TO_BVI_ERR_BAD_MAC)
194  {
195  b0->error = node->errors[L2FWD_ERROR_BVI_BAD_MAC];
196  *next0 = L2FWD_NEXT_DROP;
197  }
198  else if (rc == TO_BVI_ERR_ETHERTYPE)
199  {
200  b0->error = node->errors[L2FWD_ERROR_BVI_ETHERTYPE];
201  *next0 = L2FWD_NEXT_DROP;
202  }
203  }
204  }
205  }
206 
207  /* flood */
208  if (PREDICT_FALSE (try_flood))
209  {
210  /*
211  * lookup miss, so flood which is typically the next feature
212  * unless some other feature is inserted before uu_flood
213  */
214  if (vnet_buffer (b0)->l2.feature_bitmap &
215  (L2INPUT_FEAT_UU_FLOOD | L2INPUT_FEAT_UU_FWD))
216  {
217  *next0 = vnet_l2_feature_next (b0, msm->feat_next_node_index,
218  L2INPUT_FEAT_FWD);
219  }
220  else
221  {
222  /* Flooding is disabled */
223  b0->error = node->errors[flood_error];
224  *next0 = L2FWD_NEXT_DROP;
225  }
226  }
227 }
228 
229 
232  vlib_frame_t * frame, int do_trace)
233 {
234  u32 n_left, *from;
235  l2fwd_main_t *msm = &l2fwd_main;
236  vlib_node_t *n = vlib_get_node (vm, l2fwd_node.index);
237  CLIB_UNUSED (u32 node_counter_base_index) = n->error_heap_index;
238  vlib_error_main_t *em = &vm->error_main;
239  l2fib_entry_key_t cached_key;
240  l2fib_entry_result_t cached_result;
241  vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b;
242  u16 nexts[VLIB_FRAME_SIZE], *next;
243 
244  /* Clear the one-entry cache in case mac table was updated */
245  cached_key.raw = ~0;
246  cached_result.raw = ~0;
247 
248  from = vlib_frame_vector_args (frame);
249  n_left = frame->n_vectors; /* number of packets to process */
250  vlib_get_buffers (vm, from, bufs, n_left);
251  next = nexts;
252  b = bufs;
253 
254  while (n_left >= 8)
255  {
256  u32 sw_if_index0, sw_if_index1, sw_if_index2, sw_if_index3;
257  const ethernet_header_t *h0, *h1, *h2, *h3;
258  l2fib_entry_key_t key0, key1, key2, key3;
259  l2fib_entry_result_t result0, result1, result2, result3;
260  u32 bucket0, bucket1, bucket2, bucket3;
261 
262  /* Prefetch next iteration. */
263  {
264  vlib_prefetch_buffer_header (b[4], LOAD);
265  vlib_prefetch_buffer_header (b[5], LOAD);
266  vlib_prefetch_buffer_header (b[6], LOAD);
267  vlib_prefetch_buffer_header (b[7], LOAD);
268 
269  CLIB_PREFETCH (b[4]->data, CLIB_CACHE_LINE_BYTES, LOAD);
270  CLIB_PREFETCH (b[5]->data, CLIB_CACHE_LINE_BYTES, LOAD);
271  CLIB_PREFETCH (b[6]->data, CLIB_CACHE_LINE_BYTES, LOAD);
272  CLIB_PREFETCH (b[7]->data, CLIB_CACHE_LINE_BYTES, LOAD);
273  }
274 
275  /* RX interface handles */
276  sw_if_index0 = vnet_buffer (b[0])->sw_if_index[VLIB_RX];
277  sw_if_index1 = vnet_buffer (b[1])->sw_if_index[VLIB_RX];
278  sw_if_index2 = vnet_buffer (b[2])->sw_if_index[VLIB_RX];
279  sw_if_index3 = vnet_buffer (b[3])->sw_if_index[VLIB_RX];
280 
281  h0 = vlib_buffer_get_current (b[0]);
282  h1 = vlib_buffer_get_current (b[1]);
283  h2 = vlib_buffer_get_current (b[2]);
284  h3 = vlib_buffer_get_current (b[3]);
285 
286  if (do_trace)
287  {
288  if (b[0]->flags & VLIB_BUFFER_IS_TRACED)
289  {
290  l2fwd_trace_t *t = vlib_add_trace (vm, node, b[0], sizeof (*t));
291  t->sw_if_index = sw_if_index0;
292  t->bd_index = vnet_buffer (b[0])->l2.bd_index;
293  clib_memcpy (t->src, h0->src_address, 6);
294  clib_memcpy (t->dst, h0->dst_address, 6);
295  }
296  if (b[1]->flags & VLIB_BUFFER_IS_TRACED)
297  {
298  l2fwd_trace_t *t = vlib_add_trace (vm, node, b[1], sizeof (*t));
299  t->sw_if_index = sw_if_index1;
300  t->bd_index = vnet_buffer (b[1])->l2.bd_index;
301  clib_memcpy (t->src, h1->src_address, 6);
302  clib_memcpy (t->dst, h1->dst_address, 6);
303  }
304  if (b[2]->flags & VLIB_BUFFER_IS_TRACED)
305  {
306  l2fwd_trace_t *t = vlib_add_trace (vm, node, b[2], sizeof (*t));
307  t->sw_if_index = sw_if_index2;
308  t->bd_index = vnet_buffer (b[2])->l2.bd_index;
309  clib_memcpy (t->src, h2->src_address, 6);
310  clib_memcpy (t->dst, h2->dst_address, 6);
311  }
312  if (b[3]->flags & VLIB_BUFFER_IS_TRACED)
313  {
314  l2fwd_trace_t *t = vlib_add_trace (vm, node, b[3], sizeof (*t));
315  t->sw_if_index = sw_if_index3;
316  t->bd_index = vnet_buffer (b[3])->l2.bd_index;
317  clib_memcpy (t->src, h3->src_address, 6);
318  clib_memcpy (t->dst, h3->dst_address, 6);
319  }
320  }
321 
322 #ifdef COUNTERS
323  em->counters[node_counter_base_index + L2FWD_ERROR_L2FWD] += 4;
324 #endif
325  /* *INDENT-OFF* */
326  l2fib_lookup_4 (msm->mac_table, &cached_key, &cached_result,
327  h0->dst_address, h1->dst_address,
328  h2->dst_address, h3->dst_address,
329  vnet_buffer (b[0])->l2.bd_index,
330  vnet_buffer (b[1])->l2.bd_index,
331  vnet_buffer (b[2])->l2.bd_index,
332  vnet_buffer (b[3])->l2.bd_index,
333  &key0, /* not used */
334  &key1, /* not used */
335  &key2, /* not used */
336  &key3, /* not used */
337  &bucket0, /* not used */
338  &bucket1, /* not used */
339  &bucket2, /* not used */
340  &bucket3, /* not used */
341  &result0,
342  &result1,
343  &result2,
344  &result3);
345  /* *INDENT-ON* */
346  l2fwd_process (vm, node, msm, em, b[0], sw_if_index0, &result0, next);
347  l2fwd_process (vm, node, msm, em, b[1], sw_if_index1, &result1,
348  next + 1);
349  l2fwd_process (vm, node, msm, em, b[2], sw_if_index2, &result2,
350  next + 2);
351  l2fwd_process (vm, node, msm, em, b[3], sw_if_index3, &result3,
352  next + 3);
353 
354  /* verify speculative enqueues, maybe switch current next frame */
355  /* if next0==next1==next_index then nothing special needs to be done */
356  next += 4;
357  b += 4;
358  n_left -= 4;
359  }
360 
361  while (n_left > 0)
362  {
363  u32 sw_if_index0;
364  ethernet_header_t *h0;
365  l2fib_entry_key_t key0;
366  l2fib_entry_result_t result0;
367  u32 bucket0;
368 
369  sw_if_index0 = vnet_buffer (b[0])->sw_if_index[VLIB_RX];
370 
371  h0 = vlib_buffer_get_current (b[0]);
372 
373  if (do_trace && PREDICT_FALSE (b[0]->flags & VLIB_BUFFER_IS_TRACED))
374  {
375  l2fwd_trace_t *t = vlib_add_trace (vm, node, b[0], sizeof (*t));
376  t->sw_if_index = sw_if_index0;
377  t->bd_index = vnet_buffer (b[0])->l2.bd_index;
378  clib_memcpy (t->src, h0->src_address, 6);
379  clib_memcpy (t->dst, h0->dst_address, 6);
380  }
381 
382  /* process 1 pkt */
383 #ifdef COUNTERS
384  em->counters[node_counter_base_index + L2FWD_ERROR_L2FWD] += 1;
385 #endif
386  l2fib_lookup_1 (msm->mac_table, &cached_key, &cached_result, h0->dst_address, vnet_buffer (b[0])->l2.bd_index, &key0, /* not used */
387  &bucket0, /* not used */
388  &result0);
389  l2fwd_process (vm, node, msm, em, b[0], sw_if_index0, &result0, next);
390 
391  /* verify speculative enqueue, maybe switch current next frame */
392  next += 1;
393  b += 1;
394  n_left -= 1;
395  }
396 
397  vlib_buffer_enqueue_to_next (vm, node, from, nexts, frame->n_vectors);
398 
399  return frame->n_vectors;
400 }
401 
403  vlib_node_runtime_t * node, vlib_frame_t * frame)
404 {
405  if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)))
406  return l2fwd_node_inline (vm, node, frame, 1 /* do_trace */ );
407  return l2fwd_node_inline (vm, node, frame, 0 /* do_trace */ );
408 }
409 
410 /* *INDENT-OFF* */
411 VLIB_REGISTER_NODE (l2fwd_node,static) = {
412  .name = "l2-fwd",
413  .vector_size = sizeof (u32),
414  .format_trace = format_l2fwd_trace,
415  .type = VLIB_NODE_TYPE_INTERNAL,
416 
417  .n_errors = ARRAY_LEN(l2fwd_error_strings),
418  .error_strings = l2fwd_error_strings,
419 
420  .n_next_nodes = L2FWD_N_NEXT,
421 
422  /* edit / add dispositions here */
423  .next_nodes = {
424  [L2FWD_NEXT_L2_OUTPUT] = "l2-output",
425  [L2FWD_NEXT_DROP] = "error-drop",
426  },
427 };
428 /* *INDENT-ON* */
429 
430 #ifndef CLIB_MARCH_VARIANT
431 clib_error_t *
433 {
434  l2fwd_main_t *mp = &l2fwd_main;
435 
436  mp->vlib_main = vm;
437  mp->vnet_main = vnet_get_main ();
438 
439  /* Initialize the feature next-node indexes */
441  l2fwd_node.index,
444  mp->feat_next_node_index);
445 
446  /* init the hash table ptr */
447  mp->mac_table = get_mac_table ();
448 
449  /* Initialize the next nodes for each ethertype */
450  next_by_ethertype_init (&mp->l3_next);
451 
452  return 0;
453 }
454 
456 
457 
458 /** Add the L3 input node for this ethertype to the next nodes structure. */
459 void
461  ethernet_type_t type, u32 node_index)
462 {
463  l2fwd_main_t *mp = &l2fwd_main;
464  u32 next_index;
465 
466  next_index = vlib_node_add_next (vm, l2fwd_node.index, node_index);
467 
468  next_by_ethertype_register (&mp->l3_next, type, next_index);
469 }
470 
471 
472 /**
473  * Set subinterface forward enable/disable.
474  * The CLI format is:
475  * set interface l2 forward <interface> [disable]
476  */
477 static clib_error_t *
479 {
480  vnet_main_t *vnm = vnet_get_main ();
481  clib_error_t *error = 0;
483  u32 enable;
484 
485  if (!unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index))
486  {
487  error = clib_error_return (0, "unknown interface `%U'",
488  format_unformat_error, input);
489  goto done;
490  }
491 
492  enable = 1;
493  if (unformat (input, "disable"))
494  {
495  enable = 0;
496  }
497 
498  /* set the interface flag */
499  if (l2input_intf_config (sw_if_index)->xconnect)
500  {
501  l2input_intf_bitmap_enable (sw_if_index, L2INPUT_FEAT_XCONNECT, enable);
502  }
503  else
504  {
505  l2input_intf_bitmap_enable (sw_if_index, L2INPUT_FEAT_FWD, enable);
506  }
507 
508 done:
509  return error;
510 }
511 
512 /*?
513  * Layer 2 unicast forwarding can be enabled and disabled on each
514  * interface and on each bridge-domain. Use this command to
515  * manage interfaces. It is enabled by default.
516  *
517  * @cliexpar
518  * Example of how to enable forwarding:
519  * @cliexcmd{set interface l2 forward GigabitEthernet0/8/0}
520  * Example of how to disable forwarding:
521  * @cliexcmd{set interface l2 forward GigabitEthernet0/8/0 disable}
522 ?*/
523 /* *INDENT-OFF* */
524 VLIB_CLI_COMMAND (int_fwd_cli, static) = {
525  .path = "set interface l2 forward",
526  .short_help = "set interface l2 forward <interface> [disable]",
527  .function = int_fwd,
528 };
529 /* *INDENT-ON* */
530 
531 #endif
532 
533 /*
534  * fd.io coding-style-patch-verification: ON
535  *
536  * Local Variables:
537  * eval: (c-set-style "gnu")
538  * End:
539  */
u32 error_heap_index
Definition: node.h:329
vl_api_address_t src
Definition: vxlan_gbp.api:33
#define CLIB_UNUSED(x)
Definition: clib.h:81
u16 bd_index
Definition: l2_fwd.c:67
#define TO_BVI_ERR_BAD_MAC
Definition: l2_bvi.h:28
vnet_main_t * vnet_get_main(void)
Definition: misc.c:47
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
ethernet_type_t
Definition: packet.h:45
#define TO_BVI_ERR_ETHERTYPE
Definition: l2_bvi.h:29
u8 src_address[6]
Definition: packet.h:56
clib_error_t * l2fwd_init(vlib_main_t *vm)
Definition: l2_fwd.c:432
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
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:419
unformat_function_t unformat_vnet_sw_interface
#define VLIB_NODE_FN(node)
Definition: node.h:187
vlib_error_t * errors
Vector of errors for this node.
Definition: node.h:472
static vlib_node_registration_t l2fwd_node
(constructor) VLIB_REGISTER_NODE (l2fwd_node)
Definition: l2_fwd.c:91
static uword vlib_node_add_next(vlib_main_t *vm, uword node, uword next_node)
Definition: node_funcs.h:1118
unsigned char u8
Definition: types.h:56
static u32 vnet_l2_feature_next(vlib_buffer_t *b, u32 *next_nodes, u32 feat_bit)
Return the graph node index for the feature corresponding to the next set bit after clearing the curr...
Definition: feat_bitmap.h:94
Definition: l2_fib.h:135
#define static_always_inline
Definition: clib.h:95
u8 * format_ethernet_address(u8 *s, va_list *args)
Definition: format.c:44
#define VLIB_INIT_FUNCTION(x)
Definition: init.h:163
u32 sw_if_index
Definition: vxlan_gbp.api:39
struct l2fib_entry_result_t_::@243::@245 fields
u8 dst_address[6]
Definition: packet.h:55
static BVT(clib_bihash)
Definition: adj_nbr.c:26
#define vlib_prefetch_buffer_header(b, type)
Prefetch buffer metadata.
Definition: buffer.h:187
#define clib_error_return(e, args...)
Definition: error.h:99
unsigned int u32
Definition: types.h:88
#define VLIB_FRAME_SIZE
Definition: node.h:382
static clib_error_t * int_fwd(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Set subinterface forward enable/disable.
Definition: l2_fwd.c:478
vlib_error_main_t error_main
Definition: main.h:143
struct _unformat_input_t unformat_input_t
unsigned short u16
Definition: types.h:57
void l2fwd_register_input_type(vlib_main_t *vm, ethernet_type_t type, u32 node_index)
Add the L3 input node for this ethertype to the next nodes structure.
Definition: l2_fwd.c:460
static void * vlib_buffer_get_current(vlib_buffer_t *b)
Get pointer to current data to process.
Definition: buffer.h:205
static char * l2fwd_error_strings[]
Definition: l2_fwd.c:111
static u8 * format_l2fwd_trace(u8 *s, va_list *args)
Definition: l2_fwd.c:72
#define PREDICT_FALSE(x)
Definition: clib.h:107
vnet_main_t vnet_main
Definition: misc.c:43
static_always_inline void l2fwd_process(vlib_main_t *vm, vlib_node_runtime_t *node, l2fwd_main_t *msm, vlib_error_main_t *em, vlib_buffer_t *b0, u32 sw_if_index0, l2fib_entry_result_t *result0, u16 *next0)
Forward one packet based on the mac table lookup result.
Definition: l2_fwd.c:127
l2fwd_main_t l2fwd_main
Definition: l2_fwd.c:86
vlib_error_t error
Error code for buffers to be enqueued to error handler.
Definition: buffer.h:138
u32 flags
Definition: vhost_user.h:115
static_always_inline uword l2fwd_node_inline(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame, int do_trace)
Definition: l2_fwd.c:231
u64 * counters
Definition: error.h:78
#define VLIB_REGISTER_NODE(x,...)
Definition: node.h:155
clib_error_t * next_by_ethertype_register(next_by_ethertype_t *l3_next, u32 ethertype, u32 next_index)
Definition: node.c:1247
u16 n_vectors
Definition: node.h:401
#define CLIB_PREFETCH(addr, size, type)
Definition: cache.h:79
vlib_main_t * vm
Definition: buffer.c:294
static_always_inline void vlib_buffer_enqueue_to_next(vlib_main_t *vm, vlib_node_runtime_t *node, u32 *buffers, u16 *nexts, uword count)
Definition: buffer_node.h:332
vl_api_address_t dst
Definition: vxlan_gbp.api:34
static void feat_bitmap_init_next_nodes(vlib_main_t *vm, u32 node_index, u32 num_features, char **feat_names, u32 *next_nodes)
Initialize the feature next-node indexes of a graph node.
Definition: feat_bitmap.h:43
#define clib_memcpy(a, b, c)
Definition: string.h:75
#define ARRAY_LEN(x)
Definition: clib.h:61
char ** l2input_get_feat_names(void)
Return an array of strings containing graph node names of each feature.
Definition: l2_input.c:60
l2fwd_error_t
Definition: l2_fwd.c:103
#define VLIB_CLI_COMMAND(x,...)
Definition: cli.h:155
u32 sw_if_index
Definition: l2_fwd.c:66
Definition: l2_fib.h:71
#define foreach_l2fwd_error
Definition: l2_fwd.c:93
u8 src[6]
Definition: l2_fwd.c:64
l2fwd_next_t
Definition: l2_fwd.c:117
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
u32 l2input_intf_bitmap_enable(u32 sw_if_index, u32 feature_bitmap, u32 enable)
Enable (or disable) the feature in the bitmap for the given interface.
Definition: l2_input.c:520
int vlib_main(vlib_main_t *volatile vm, unformat_input_t *input)
Definition: main.c:1689
struct _vlib_node_registration vlib_node_registration_t
Definition: defs.h:47
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:267
clib_error_t * next_by_ethertype_init(next_by_ethertype_t *l3_next)
Definition: node.c:1217
u8 dst[6]
Definition: l2_fwd.c:65
#define vnet_buffer(b)
Definition: buffer.h:344
u8 * format_unformat_error(u8 *s, va_list *va)
Definition: unformat.c:91
static vlib_node_t * vlib_get_node(vlib_main_t *vm, u32 i)
Get vlib node by index.
Definition: node_funcs.h:59
static_always_inline void l2fib_lookup_1(BVT(clib_bihash)*mac_table, l2fib_entry_key_t *cached_key, l2fib_entry_result_t *cached_result, u8 *mac0, u16 bd_index0, l2fib_entry_key_t *key0, u32 *bucket0, l2fib_entry_result_t *result0)
Lookup the entry for mac and bd_index in the mac table for 1 packet.
Definition: l2_fib.h:264
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:141
#define VLIB_NODE_FLAG_TRACE
Definition: node.h:310
static_always_inline void l2fib_lookup_4(BVT(clib_bihash)*mac_table, l2fib_entry_key_t *cached_key, l2fib_entry_result_t *cached_result, const u8 *mac0, const u8 *mac1, const u8 *mac2, const u8 *mac3, u16 bd_index0, u16 bd_index1, u16 bd_index2, u16 bd_index3, l2fib_entry_key_t *key0, l2fib_entry_key_t *key1, l2fib_entry_key_t *key2, l2fib_entry_key_t *key3, u32 *bucket0, u32 *bucket1, u32 *bucket2, u32 *bucket3, l2fib_entry_result_t *result0, l2fib_entry_result_t *result1, l2fib_entry_result_t *result2, l2fib_entry_result_t *result3)
Definition: l2_fib.h:363
#define CLIB_CACHE_LINE_BYTES
Definition: cache.h:59
uword unformat(unformat_input_t *i, const char *fmt,...)
Definition: unformat.c:972
Definition: defs.h:46
u64 raw
Definition: l2_fib.h:85
static_always_inline u32 l2_to_bvi(vlib_main_t *vlib_main, vnet_main_t *vnet_main, vlib_buffer_t *b0, u32 bvi_sw_if_index, next_by_ethertype_t *l3_next, u16 *next0)
Send a packet from L2 processing to L3 via the BVI interface.
Definition: l2_bvi.h:38