FD.io VPP  v18.10-34-gcce845e
Vector Packet Processing
l2_output.c
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1 /*
2  * l2_output.c : layer 2 output packet processing
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 <vppinfra/error.h>
25 #include <vppinfra/hash.h>
26 #include <vnet/l2/feat_bitmap.h>
27 #include <vnet/l2/l2_output.h>
28 
29 
30 #ifndef CLIB_MARCH_VARIANT
31 /* Feature graph node names */
32 static char *l2output_feat_names[] = {
33 #define _(sym,name) name,
35 #undef _
36 };
37 
38 char **
40 {
41  return l2output_feat_names;
42 }
43 
44 u8 *
45 format_l2_output_features (u8 * s, va_list * args)
46 {
47  static char *display_names[] = {
48 #define _(sym,name) #sym,
50 #undef _
51  };
52  u32 feature_bitmap = va_arg (*args, u32);
53 
54  if (feature_bitmap == 0)
55  {
56  s = format (s, " none configured");
57  return s;
58  }
59 
60  int i;
61  for (i = L2OUTPUT_N_FEAT - 1; i >= 0; i--)
62  if (feature_bitmap & (1 << i))
63  s = format (s, "%10s (%s)\n", display_names[i], l2output_feat_names[i]);
64  return s;
65 }
66 
68 #endif
69 
70 typedef struct
71 {
72  /* per-pkt trace data */
73  u8 src[6];
74  u8 dst[6];
76  u8 raw[12]; /* raw data */
78 
79 /* packet trace format function */
80 static u8 *
81 format_l2output_trace (u8 * s, va_list * args)
82 {
83  CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
84  CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
85  l2output_trace_t *t = va_arg (*args, l2output_trace_t *);
86 
87  s = format (s, "l2-output: sw_if_index %d dst %U src %U data "
88  "%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x",
89  t->sw_if_index,
92  t->raw[0], t->raw[1], t->raw[2], t->raw[3], t->raw[4],
93  t->raw[5], t->raw[6], t->raw[7], t->raw[8], t->raw[9],
94  t->raw[10], t->raw[11]);
95 
96  return s;
97 }
98 
99 
100 static char *l2output_error_strings[] = {
101 #define _(sym,string) string,
103 #undef _
104 };
105 
106 /**
107  * Check for split horizon violations.
108  * Return 0 if split horizon check passes, otherwise return non-zero.
109  * Packets should not be transmitted out an interface with the same
110  * split-horizon group as the input interface, except if the @c shg is 0
111  * in which case the check always passes.
112  */
115  vlib_buffer_t * b, u16 * next)
116 {
117  if (shg != vnet_buffer (b)->l2.shg)
118  return;
119  next[0] = L2OUTPUT_NEXT_DROP;
120  b->error = node->errors[L2OUTPUT_ERROR_SHG_DROP];
121 }
122 
125  l2_output_config_t * config,
126  vlib_buffer_t ** b, i16 * cdo, u16 * next,
127  u32 n_left, int l2_efp, int l2_vtr, int l2_pbb,
128  int shg_set, int update_feature_bitmap)
129 {
130  while (n_left >= 8)
131  {
132  vlib_prefetch_buffer_header (b[4], LOAD);
133  vlib_prefetch_buffer_header (b[5], LOAD);
134  vlib_prefetch_buffer_header (b[6], LOAD);
135  vlib_prefetch_buffer_header (b[7], LOAD);
136 
137  /* prefetch eth headers only if we need to touch them */
138  if (l2_vtr || l2_pbb || shg_set)
139  {
140  CLIB_PREFETCH (b[4]->data + cdo[4], CLIB_CACHE_LINE_BYTES, LOAD);
141  CLIB_PREFETCH (b[5]->data + cdo[5], CLIB_CACHE_LINE_BYTES, LOAD);
142  CLIB_PREFETCH (b[6]->data + cdo[6], CLIB_CACHE_LINE_BYTES, LOAD);
143  CLIB_PREFETCH (b[7]->data + cdo[7], CLIB_CACHE_LINE_BYTES, LOAD);
144  }
145 
146  if (update_feature_bitmap)
147  {
148  vnet_buffer (b[0])->l2.feature_bitmap = config->feature_bitmap;
149  vnet_buffer (b[1])->l2.feature_bitmap = config->feature_bitmap;
150  vnet_buffer (b[2])->l2.feature_bitmap = config->feature_bitmap;
151  vnet_buffer (b[3])->l2.feature_bitmap = config->feature_bitmap;
152  }
153 
154  if (l2_vtr)
155  {
156  int i;
157  for (i = 0; i < 4; i++)
158  {
159  u32 failed1 = l2_efp &&
160  l2_efp_filter_process (b[i], &(config->input_vtr));
161  u32 failed2 = l2_vtr_process (b[i], &(config->output_vtr));
162  if (PREDICT_FALSE (failed1 | failed2))
163  {
164  next[i] = L2OUTPUT_NEXT_DROP;
165  if (failed2)
166  b[i]->error = node->errors[L2OUTPUT_ERROR_VTR_DROP];
167  if (failed1)
168  b[i]->error = node->errors[L2OUTPUT_ERROR_EFP_DROP];
169  }
170  }
171  }
172 
173  if (l2_pbb)
174  {
175  int i;
176  for (i = 0; i < 4; i++)
177  if (l2_pbb_process (b[i], &(config->output_pbb_vtr)))
178  {
179  next[i] = L2OUTPUT_NEXT_DROP;
180  b[i]->error = node->errors[L2OUTPUT_ERROR_VTR_DROP];
181  }
182  }
183 
184  if (shg_set)
185  {
186  split_horizon_violation (node, config->shg, b[0], next);
187  split_horizon_violation (node, config->shg, b[1], next + 1);
188  split_horizon_violation (node, config->shg, b[2], next + 2);
189  split_horizon_violation (node, config->shg, b[3], next + 3);
190  }
191  /* next */
192  n_left -= 4;
193  b += 4;
194  next += 4;
195  cdo += 4;
196  }
197 
198  while (n_left)
199  {
200  if (update_feature_bitmap)
201  vnet_buffer (b[0])->l2.feature_bitmap = config->feature_bitmap;
202 
203  if (l2_vtr)
204  {
205  u32 failed1 = l2_efp &&
206  l2_efp_filter_process (b[0], &(config->input_vtr));
207  u32 failed2 = l2_vtr_process (b[0], &(config->output_vtr));
208  if (PREDICT_FALSE (failed1 | failed2))
209  {
210  *next = L2OUTPUT_NEXT_DROP;
211  if (failed2)
212  b[0]->error = node->errors[L2OUTPUT_ERROR_VTR_DROP];
213  if (failed1)
214  b[0]->error = node->errors[L2OUTPUT_ERROR_EFP_DROP];
215  }
216  }
217 
218  if (l2_pbb && l2_pbb_process (b[0], &(config->output_pbb_vtr)))
219  {
220  next[0] = L2OUTPUT_NEXT_DROP;
221  b[0]->error = node->errors[L2OUTPUT_ERROR_VTR_DROP];
222  }
223 
224  if (shg_set)
225  split_horizon_violation (node, config->shg, b[0], next);
226 
227  /* next */
228  n_left -= 1;
229  b += 1;
230  next += 1;
231  }
232 }
233 
236 {
237  while (n_left >= 8)
238  {
239  vlib_prefetch_buffer_header (b[4], LOAD);
240  vlib_prefetch_buffer_header (b[5], LOAD);
241  vlib_prefetch_buffer_header (b[6], LOAD);
242  vlib_prefetch_buffer_header (b[7], LOAD);
243  b[0]->error = b[1]->error = b[2]->error = b[3]->error = error;
244  b += 4;
245  n_left -= 4;
246  }
247  while (n_left)
248  {
249  b[0]->error = error;
250  b += 1;
251  n_left -= 1;
252  }
253 }
254 
257  l2_output_config_t * config, vlib_buffer_t ** b,
258  i16 * cdo, u16 * next, u32 n_left, int l2_efp,
259  int l2_vtr, int l2_pbb)
260 {
261  u32 feature_bitmap = config->feature_bitmap & ~L2OUTPUT_FEAT_OUTPUT;
262  if (config->shg == 0 && feature_bitmap == 0)
263  {
264  if ((l2_efp | l2_vtr | l2_pbb) == 0)
265  return;
266  l2output_process_batch_inline (vm, node, config, b, cdo, next, n_left,
267  l2_efp, l2_vtr, l2_pbb, 0, 0);
268  }
269  else if (config->shg == 0)
270  l2output_process_batch_inline (vm, node, config, b, cdo, next, n_left,
271  l2_efp, l2_vtr, l2_pbb, 0, 1);
272  else if (feature_bitmap == 0)
273  l2output_process_batch_inline (vm, node, config, b, cdo, next, n_left,
274  l2_efp, l2_vtr, l2_pbb, 1, 0);
275  else
276  l2output_process_batch_inline (vm, node, config, b, cdo, next, n_left,
277  l2_efp, l2_vtr, l2_pbb, 1, 1);
278 }
279 
281  vlib_node_runtime_t * node,
282  vlib_frame_t * frame)
283 {
284  u32 n_left, *from;
286  vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b;
287  u16 nexts[VLIB_FRAME_SIZE];
288  u32 sw_if_indices[VLIB_FRAME_SIZE], *sw_if_index;
289  i16 cur_data_offsets[VLIB_FRAME_SIZE], *cdo;
290  l2_output_config_t *config;
291  u32 feature_bitmap;
292 
293  from = vlib_frame_vector_args (frame);
294  n_left = frame->n_vectors; /* number of packets to process */
295 
296  vlib_get_buffers (vm, from, bufs, n_left);
297  b = bufs;
298  sw_if_index = sw_if_indices;
299  cdo = cur_data_offsets;
300 
301  /* extract data from buffer metadata */
302  while (n_left >= 8)
303  {
304  /* Prefetch the buffer header for the N+2 loop iteration */
305  vlib_prefetch_buffer_header (b[4], LOAD);
306  vlib_prefetch_buffer_header (b[5], LOAD);
307  vlib_prefetch_buffer_header (b[6], LOAD);
308  vlib_prefetch_buffer_header (b[7], LOAD);
309 
310  sw_if_index[0] = vnet_buffer (b[0])->sw_if_index[VLIB_TX];
311  cdo[0] = b[0]->current_data;
312  sw_if_index[1] = vnet_buffer (b[1])->sw_if_index[VLIB_TX];
313  cdo[1] = b[1]->current_data;
314  sw_if_index[2] = vnet_buffer (b[2])->sw_if_index[VLIB_TX];
315  cdo[2] = b[2]->current_data;
316  sw_if_index[3] = vnet_buffer (b[3])->sw_if_index[VLIB_TX];
317  cdo[3] = b[3]->current_data;
318 
319  /* next */
320  sw_if_index += 4;
321  n_left -= 4;
322  b += 4;
323  cdo += 4;
324  }
325  while (n_left)
326  {
327  sw_if_index[0] = vnet_buffer (b[0])->sw_if_index[VLIB_TX];
328  cdo[0] = b[0]->current_data;
329 
330  /* next */
331  sw_if_index += 1;
332  n_left -= 1;
333  b += 1;
334  cdo += 1;
335  }
336 
337  n_left = frame->n_vectors;
338  while (n_left)
339  {
340  u16 count, new_next, *next;
341  u16 off = frame->n_vectors - n_left;
342  b = bufs + off;
343 
344  if (n_left >= 4)
345  {
346  vlib_prefetch_buffer_header (b[0], LOAD);
347  vlib_prefetch_buffer_header (b[1], LOAD);
348  vlib_prefetch_buffer_header (b[2], LOAD);
349  vlib_prefetch_buffer_header (b[3], LOAD);
350  }
351 
352  sw_if_index = sw_if_indices + off;
353  cdo = cur_data_offsets + off;
354  next = nexts + off;
355 
356  count = clib_count_equal_u32 (sw_if_index, n_left);
357  n_left -= count;
358 
359  config = vec_elt_at_index (msm->configs, sw_if_index[0]);
360  feature_bitmap = config->feature_bitmap;
361  if (PREDICT_FALSE ((feature_bitmap & ~L2OUTPUT_FEAT_OUTPUT) != 0))
363  (l2output_main.l2_out_feat_next, feature_bitmap);
364  else
365  new_next = vec_elt (l2output_main.output_node_index_vec,
366  sw_if_index[0]);
367  clib_memset_u16 (nexts + off, new_next, count);
368 
369  if (new_next == L2OUTPUT_NEXT_DROP)
370  {
372  (b, count, node->errors[L2OUTPUT_ERROR_MAPPING_DROP]);
373  continue;
374  }
375 
376  /* VTR */
377  if (config->out_vtr_flag && config->output_vtr.push_and_pop_bytes)
378  {
379  if (feature_bitmap & L2OUTPUT_FEAT_EFP_FILTER)
380  l2output_process_batch (vm, node, config, b, cdo, next, count,
381  /* l2_efp */ 1,
382  /* l2_vtr */ 1,
383  /* l2_pbb */ 0);
384  else
385  l2output_process_batch (vm, node, config, b, cdo, next, count,
386  /* l2_efp */ 0,
387  /* l2_vtr */ 1,
388  /* l2_pbb */ 0);
389  }
390  else if (config->out_vtr_flag &&
392  l2output_process_batch (vm, node, config, b, cdo, next, count,
393  /* l2_efp */ 0,
394  /* l2_vtr */ 0,
395  /* l2_pbb */ 1);
396  else
397  l2output_process_batch (vm, node, config, b, cdo, next, count,
398  /* l2_efp */ 0,
399  /* l2_vtr */ 0,
400  /* l2_pbb */ 0);
401  }
402 
403 
404  if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)))
405  {
406  n_left = frame->n_vectors; /* number of packets to process */
407  b = bufs;
408 
409  while (n_left)
410  {
411  if (PREDICT_FALSE (b[0]->flags & VLIB_BUFFER_IS_TRACED))
412  {
414  l2output_trace_t *t =
415  vlib_add_trace (vm, node, b[0], sizeof (*t));
416  t->sw_if_index = vnet_buffer (b[0])->sw_if_index[VLIB_TX];
417  h = vlib_buffer_get_current (b[0]);
418  clib_memcpy (t->src, h->src_address, 6);
419  clib_memcpy (t->dst, h->dst_address, 6);
420  clib_memcpy (t->raw, &h->type, sizeof (t->raw));
421  }
422  /* next */
423  n_left--;
424  b++;
425  }
426  }
427 
428  vlib_buffer_enqueue_to_next (vm, node, from, nexts, frame->n_vectors);
430  L2OUTPUT_ERROR_L2OUTPUT, frame->n_vectors);
431 
432  return frame->n_vectors;
433 }
434 
435 /* *INDENT-OFF* */
437  .name = "l2-output",
438  .vector_size = sizeof (u32),
439  .format_trace = format_l2output_trace,
440  .type = VLIB_NODE_TYPE_INTERNAL,
441 
442  .n_errors = ARRAY_LEN(l2output_error_strings),
443  .error_strings = l2output_error_strings,
444 
445  .n_next_nodes = L2OUTPUT_N_NEXT,
446 
447  /* edit / add dispositions here */
448  .next_nodes = {
449  [L2OUTPUT_NEXT_DROP] = "error-drop",
450  [L2OUTPUT_NEXT_BAD_INTF] = "l2-output-bad-intf",
451  },
452 };
453 /* *INDENT-ON* */
454 
455 
456 #define foreach_l2output_bad_intf_error \
457 _(DROP, "L2 output to interface not in L2 mode or deleted")
458 
460 #define _(sym,string) string,
462 #undef _
463 };
464 
465 typedef enum
466 {
467 #define _(sym,str) L2OUTPUT_BAD_INTF_ERROR_##sym,
469 #undef _
472 
473 
474 /**
475  * Output node for interfaces/tunnels which was in L2 mode but were changed
476  * to L3 mode or possibly deleted thereafter. On changing forwarding mode
477  * of any tunnel/interface from L2 to L3, its entry in l2_output_main table
478  * next_nodes.output_node_index_vec[sw_if_index] MUST be set to the value of
479  * L2OUTPUT_NEXT_BAD_INTF. Thus, if there are stale entries in the L2FIB for
480  * this sw_if_index, l2-output will send packets for this sw_if_index to the
481  * l2-output-bad-intf node which just setup the proper drop reason before
482  * sending packets to the error-drop node to drop the packet. Then, stale L2FIB
483  * entries for deleted tunnels won't cause possible packet or memory corruption.
484  */
485 
487  vlib_node_runtime_t * node,
488  vlib_frame_t * frame)
489 {
490  u32 n_left_from, *from, *to_next;
491  l2output_next_t next_index = 0;
492 
493  from = vlib_frame_vector_args (frame);
494  n_left_from = frame->n_vectors; /* number of packets to process */
495 
496  while (n_left_from > 0)
497  {
498  u32 n_left_to_next;
499 
500  /* get space to enqueue frame to graph node "next_index" */
501  vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
502 
503  while (n_left_from >= 4 && n_left_to_next >= 2)
504  {
505  u32 bi0, bi1;
506  vlib_buffer_t *b0, *b1;
507 
508  to_next[0] = bi0 = from[0];
509  to_next[1] = bi1 = from[1];
510  from += 2;
511  to_next += 2;
512  n_left_from -= 2;
513  n_left_to_next -= 2;
514  b0 = vlib_get_buffer (vm, bi0);
515  b1 = vlib_get_buffer (vm, bi1);
516  b0->error = node->errors[L2OUTPUT_BAD_INTF_ERROR_DROP];
517  b1->error = node->errors[L2OUTPUT_BAD_INTF_ERROR_DROP];
518  }
519 
520  while (n_left_from > 0 && n_left_to_next > 0)
521  {
522  u32 bi0;
523  vlib_buffer_t *b0;
524 
525  bi0 = from[0];
526  to_next[0] = bi0;
527  from += 1;
528  to_next += 1;
529  n_left_from -= 1;
530  n_left_to_next -= 1;
531  b0 = vlib_get_buffer (vm, bi0);
532  b0->error = node->errors[L2OUTPUT_BAD_INTF_ERROR_DROP];
533  }
534 
535  vlib_put_next_frame (vm, node, next_index, n_left_to_next);
536  }
537 
538  return frame->n_vectors;
539 }
540 
541 /* *INDENT-OFF* */
543  .name = "l2-output-bad-intf",
544  .vector_size = sizeof (u32),
545  .type = VLIB_NODE_TYPE_INTERNAL,
546 
548  .error_strings = l2output_bad_intf_error_strings,
549 
550  .n_next_nodes = 1,
551 
552  /* edit / add dispositions here */
553  .next_nodes = {
554  [0] = "error-drop",
555  },
556 };
557 /* *INDENT-ON* */
558 
559 static clib_error_t *
561 {
563 
564  mp->vlib_main = vm;
565  mp->vnet_main = vnet_get_main ();
566 
567  /* Create the config vector */
568  vec_validate (mp->configs, 100);
569  /* Until we hook up the CLI config, just create 100 sw interface entries and zero them */
570 
571  /* Initialize the feature next-node indexes */
573  l2output_node.index,
576  mp->l2_out_feat_next);
577 
578  /* Initialize the output node mapping table */
581 
582  return 0;
583 }
584 
586 
587 
588 #ifndef CLIB_MARCH_VARIANT
589 /** Create a mapping in the next node mapping table for the given sw_if_index. */
590 void
593 {
594  vnet_hw_interface_t *hw0 =
595  vnet_get_sup_hw_interface (vnet_main, sw_if_index);
596 
597  /* dynamically create graph node arc */
598  u32 next = vlib_node_add_next (vlib_main, l2output_node.index,
599  hw0->output_node_index);
600  l2output_main.output_node_index_vec[sw_if_index] = next;
601 }
602 
603 /* Get a pointer to the config for the given interface */
606 {
608 
609  vec_validate (mp->configs, sw_if_index);
610  return vec_elt_at_index (mp->configs, sw_if_index);
611 }
612 
613 /** Enable (or disable) the feature in the bitmap for the given interface. */
614 void
616 {
618  l2_output_config_t *config;
619 
620  vec_validate (mp->configs, sw_if_index);
621  config = vec_elt_at_index (mp->configs, sw_if_index);
622 
623  if (enable)
624  {
625  config->feature_bitmap |= feature_bitmap;
626  }
627  else
628  {
629  config->feature_bitmap &= ~feature_bitmap;
630  }
631 }
632 #endif
633 
634 /*
635  * fd.io coding-style-patch-verification: ON
636  *
637  * Local Variables:
638  * eval: (c-set-style "gnu")
639  * End:
640  */
l2output_bad_intf_error_t
Definition: l2_output.c:465
#define vec_validate(V, I)
Make sure vector is long enough for given index (no header, unspecified alignment) ...
Definition: vec.h:437
#define foreach_l2output_error
Definition: l2_output.h:115
vl_api_address_t src
Definition: vxlan_gbp.api:33
#define CLIB_UNUSED(x)
Definition: clib.h:81
char ** l2output_get_feat_names(void)
Definition: l2_output.c:39
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 * format_l2_output_features(u8 *s, va_list *args)
Definition: l2_output.c:45
vlib_node_registration_t l2output_node
(constructor) VLIB_REGISTER_NODE (l2output_node)
Definition: l2_output.c:436
l2output_next_t
Definition: l2_output.h:123
u8 src_address[6]
Definition: packet.h:56
vlib_node_registration_t l2output_bad_intf_node
(constructor) VLIB_REGISTER_NODE (l2output_bad_intf_node)
Definition: l2_output.c:542
static_always_inline void split_horizon_violation(vlib_node_runtime_t *node, u8 shg, vlib_buffer_t *b, u16 *next)
Check for split horizon violations.
Definition: l2_output.c:114
u16 vlib_error_t
Definition: error.h:44
int i
static_always_inline void l2output_set_buffer_error(vlib_buffer_t **b, u32 n_left, vlib_error_t error)
Definition: l2_output.c:235
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:419
#define VLIB_NODE_FN(node)
Definition: node.h:187
static u32 l2_pbb_process(vlib_buffer_t *b0, ptr_config_t *config)
Definition: l2_vtr.h:201
u32 * output_node_index_vec
Definition: l2_output.h:58
vlib_error_t * errors
Vector of errors for this node.
Definition: node.h:472
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 clib_error_t * l2output_init(vlib_main_t *vm)
Definition: l2_output.c:560
u16 push_and_pop_bytes
Definition: l2_vtr.h:64
void l2output_create_output_node_mapping(vlib_main_t *vlib_main, vnet_main_t *vnet_main, u32 sw_if_index)
Create a mapping in the next node mapping table for the given sw_if_index.
Definition: l2_output.c:591
u16 push_and_pop_bytes
Definition: l2_vtr.h:196
i16 current_data
signed offset in data[], pre_data[] that we are currently processing.
Definition: buffer.h:109
#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
ptr_config_t output_pbb_vtr
Definition: l2_output.h:39
u8 dst_address[6]
Definition: packet.h:55
#define vlib_prefetch_buffer_header(b, type)
Prefetch buffer metadata.
Definition: buffer.h:187
#define vec_elt_at_index(v, i)
Get vector value at index i checking that i is in bounds.
unsigned int u32
Definition: types.h:88
#define VLIB_FRAME_SIZE
Definition: node.h:382
void l2output_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_output.c:615
static u32 l2_vtr_process(vlib_buffer_t *b0, vtr_config_t *config)
Perform the configured tag rewrite on the packet.
Definition: l2_vtr.h:75
l2_output_config_t * l2output_intf_config(u32 sw_if_index)
Get a pointer to the config for the given interface.
Definition: l2_output.c:605
static_always_inline void l2output_process_batch(vlib_main_t *vm, vlib_node_runtime_t *node, l2_output_config_t *config, vlib_buffer_t **b, i16 *cdo, u16 *next, u32 n_left, int l2_efp, int l2_vtr, int l2_pbb)
Definition: l2_output.c:256
vtr_config_t input_vtr
Definition: l2_output.h:36
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:205
#define PREDICT_FALSE(x)
Definition: clib.h:107
vnet_main_t vnet_main
Definition: misc.c:43
#define foreach_l2output_bad_intf_error
Definition: l2_output.c:456
l2output_main_t l2output_main
Definition: l2_output.c:67
static u32 feat_bitmap_get_next_node_index(u32 *next_nodes, u32 bitmap)
Return the graph node index for the feature corresponding to the first set bit in the bitmap...
Definition: feat_bitmap.h:79
#define vlib_get_next_frame(vm, node, next_index, vectors, n_vectors_left)
Get pointer to next frame vector data by (vlib_node_runtime_t, next_index).
Definition: node_funcs.h:364
vlib_error_t error
Error code for buffers to be enqueued to error handler.
Definition: buffer.h:138
static void vlib_node_increment_counter(vlib_main_t *vm, u32 node_index, u32 counter_index, u64 increment)
Definition: node_funcs.h:1176
u32 flags
Definition: vhost_user.h:115
vlib_main_t * vlib_main
Definition: l2_output.h:70
#define VLIB_REGISTER_NODE(x,...)
Definition: node.h:155
#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
static u8 l2_efp_filter_process(vlib_buffer_t *b0, vtr_config_t *in_config)
Definition: l2_vtr.h:141
#define clib_memcpy(a, b, c)
Definition: string.h:75
static char * l2output_feat_names[]
Definition: l2_output.c:32
#define ARRAY_LEN(x)
Definition: clib.h:61
void vlib_put_next_frame(vlib_main_t *vm, vlib_node_runtime_t *r, u32 next_index, u32 n_vectors_left)
Release pointer to next frame vector data.
Definition: main.c:455
vtr_config_t output_vtr
Definition: l2_output.h:37
static_always_inline void l2output_process_batch_inline(vlib_main_t *vm, vlib_node_runtime_t *node, l2_output_config_t *config, vlib_buffer_t **b, i16 *cdo, u16 *next, u32 n_left, int l2_efp, int l2_vtr, int l2_pbb, int shg_set, int update_feature_bitmap)
Definition: l2_output.c:124
size_t count
Definition: vapi.c:46
static char * l2output_error_strings[]
Definition: l2_output.c:100
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 void clib_memset_u16(void *p, u16 val, uword count)
Definition: string.h:233
#define vec_elt(v, i)
Get vector value at index i.
int vlib_main(vlib_main_t *volatile vm, unformat_input_t *input)
Definition: main.c:1689
Definition: defs.h:47
static char * l2output_bad_intf_error_strings[]
Definition: l2_output.c:459
static void * vlib_frame_vector_args(vlib_frame_t *f)
Get pointer to frame vector data.
Definition: node_funcs.h:267
l2_output_config_t * configs
Definition: l2_output.h:67
#define vnet_buffer(b)
Definition: buffer.h:344
static_always_inline uword clib_count_equal_u32(u32 *data, uword max_count)
Definition: string.h:375
static u8 * format_l2output_trace(u8 *s, va_list *args)
Definition: l2_output.c:81
u32 l2_out_feat_next[32]
Definition: l2_output.h:64
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
#define vec_validate_init_empty(V, I, INIT)
Make sure vector is long enough for given index and initialize empty space (no header, unspecified alignment)
Definition: vec.h:486
#define CLIB_CACHE_LINE_BYTES
Definition: cache.h:59
vnet_main_t * vnet_main
Definition: l2_output.h:71
static vlib_buffer_t * vlib_get_buffer(vlib_main_t *vm, u32 buffer_index)
Translate buffer index into buffer pointer.
Definition: buffer_funcs.h:58
signed short i16
Definition: types.h:46