FD.io VPP  v19.01.3-6-g70449b9b9
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  u32 verbose = va_arg (*args, u32);
54 
55  if (feature_bitmap == 0)
56  {
57  s = format (s, " none configured");
58  return s;
59  }
60 
61  int i;
62  for (i = L2OUTPUT_N_FEAT - 1; i >= 0; i--)
63  {
64  if (feature_bitmap & (1 << i))
65  {
66  if (verbose)
67  s =
68  format (s, "%17s (%s)\n", display_names[i],
70  else
71  s = format (s, "%s ", l2output_feat_names[i]);
72  }
73  }
74 
75  return s;
76 }
77 
79 #endif
80 
81 typedef struct
82 {
83  /* per-pkt trace data */
84  u8 src[6];
85  u8 dst[6];
87  u8 raw[12]; /* raw data */
89 
90 /* packet trace format function */
91 static u8 *
92 format_l2output_trace (u8 * s, va_list * args)
93 {
94  CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
95  CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
96  l2output_trace_t *t = va_arg (*args, l2output_trace_t *);
97 
98  s = format (s, "l2-output: sw_if_index %d dst %U src %U data "
99  "%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x",
100  t->sw_if_index,
103  t->raw[0], t->raw[1], t->raw[2], t->raw[3], t->raw[4],
104  t->raw[5], t->raw[6], t->raw[7], t->raw[8], t->raw[9],
105  t->raw[10], t->raw[11]);
106 
107  return s;
108 }
109 
110 
111 static char *l2output_error_strings[] = {
112 #define _(sym,string) string,
114 #undef _
115 };
116 
117 /**
118  * Check for split horizon violations.
119  * Return 0 if split horizon check passes, otherwise return non-zero.
120  * Packets should not be transmitted out an interface with the same
121  * split-horizon group as the input interface, except if the @c shg is 0
122  * in which case the check always passes.
123  */
126  vlib_buffer_t * b, u16 * next)
127 {
128  if (shg != vnet_buffer (b)->l2.shg)
129  return;
130  next[0] = L2OUTPUT_NEXT_DROP;
131  b->error = node->errors[L2OUTPUT_ERROR_SHG_DROP];
132 }
133 
136  l2_output_config_t * config,
137  vlib_buffer_t ** b, i16 * cdo, u16 * next,
138  u32 n_left, int l2_efp, int l2_vtr, int l2_pbb,
139  int shg_set, int update_feature_bitmap)
140 {
141  while (n_left >= 8)
142  {
143  vlib_prefetch_buffer_header (b[4], LOAD);
144  vlib_prefetch_buffer_header (b[5], LOAD);
145  vlib_prefetch_buffer_header (b[6], LOAD);
146  vlib_prefetch_buffer_header (b[7], LOAD);
147 
148  /* prefetch eth headers only if we need to touch them */
149  if (l2_vtr || l2_pbb || shg_set)
150  {
151  CLIB_PREFETCH (b[4]->data + cdo[4], CLIB_CACHE_LINE_BYTES, LOAD);
152  CLIB_PREFETCH (b[5]->data + cdo[5], CLIB_CACHE_LINE_BYTES, LOAD);
153  CLIB_PREFETCH (b[6]->data + cdo[6], CLIB_CACHE_LINE_BYTES, LOAD);
154  CLIB_PREFETCH (b[7]->data + cdo[7], CLIB_CACHE_LINE_BYTES, LOAD);
155  }
156 
157  if (update_feature_bitmap)
158  {
159  vnet_buffer (b[0])->l2.feature_bitmap = config->feature_bitmap;
160  vnet_buffer (b[1])->l2.feature_bitmap = config->feature_bitmap;
161  vnet_buffer (b[2])->l2.feature_bitmap = config->feature_bitmap;
162  vnet_buffer (b[3])->l2.feature_bitmap = config->feature_bitmap;
163  }
164 
165  if (l2_vtr)
166  {
167  int i;
168  for (i = 0; i < 4; i++)
169  {
170  u32 failed1 = l2_efp &&
171  l2_efp_filter_process (b[i], &(config->input_vtr));
172  u32 failed2 = l2_vtr_process (b[i], &(config->output_vtr));
173  if (PREDICT_FALSE (failed1 | failed2))
174  {
175  next[i] = L2OUTPUT_NEXT_DROP;
176  if (failed2)
177  b[i]->error = node->errors[L2OUTPUT_ERROR_VTR_DROP];
178  if (failed1)
179  b[i]->error = node->errors[L2OUTPUT_ERROR_EFP_DROP];
180  }
181  }
182  }
183 
184  if (l2_pbb)
185  {
186  int i;
187  for (i = 0; i < 4; i++)
188  if (l2_pbb_process (b[i], &(config->output_pbb_vtr)))
189  {
190  next[i] = L2OUTPUT_NEXT_DROP;
191  b[i]->error = node->errors[L2OUTPUT_ERROR_VTR_DROP];
192  }
193  }
194 
195  if (shg_set)
196  {
197  split_horizon_violation (node, config->shg, b[0], next);
198  split_horizon_violation (node, config->shg, b[1], next + 1);
199  split_horizon_violation (node, config->shg, b[2], next + 2);
200  split_horizon_violation (node, config->shg, b[3], next + 3);
201  }
202  /* next */
203  n_left -= 4;
204  b += 4;
205  next += 4;
206  cdo += 4;
207  }
208 
209  while (n_left)
210  {
211  if (update_feature_bitmap)
212  vnet_buffer (b[0])->l2.feature_bitmap = config->feature_bitmap;
213 
214  if (l2_vtr)
215  {
216  u32 failed1 = l2_efp &&
217  l2_efp_filter_process (b[0], &(config->input_vtr));
218  u32 failed2 = l2_vtr_process (b[0], &(config->output_vtr));
219  if (PREDICT_FALSE (failed1 | failed2))
220  {
221  *next = L2OUTPUT_NEXT_DROP;
222  if (failed2)
223  b[0]->error = node->errors[L2OUTPUT_ERROR_VTR_DROP];
224  if (failed1)
225  b[0]->error = node->errors[L2OUTPUT_ERROR_EFP_DROP];
226  }
227  }
228 
229  if (l2_pbb && l2_pbb_process (b[0], &(config->output_pbb_vtr)))
230  {
231  next[0] = L2OUTPUT_NEXT_DROP;
232  b[0]->error = node->errors[L2OUTPUT_ERROR_VTR_DROP];
233  }
234 
235  if (shg_set)
236  split_horizon_violation (node, config->shg, b[0], next);
237 
238  /* next */
239  n_left -= 1;
240  b += 1;
241  next += 1;
242  }
243 }
244 
247 {
248  while (n_left >= 8)
249  {
250  vlib_prefetch_buffer_header (b[4], LOAD);
251  vlib_prefetch_buffer_header (b[5], LOAD);
252  vlib_prefetch_buffer_header (b[6], LOAD);
253  vlib_prefetch_buffer_header (b[7], LOAD);
254  b[0]->error = b[1]->error = b[2]->error = b[3]->error = error;
255  b += 4;
256  n_left -= 4;
257  }
258  while (n_left)
259  {
260  b[0]->error = error;
261  b += 1;
262  n_left -= 1;
263  }
264 }
265 
268  l2_output_config_t * config, vlib_buffer_t ** b,
269  i16 * cdo, u16 * next, u32 n_left, int l2_efp,
270  int l2_vtr, int l2_pbb)
271 {
272  u32 feature_bitmap = config->feature_bitmap & ~L2OUTPUT_FEAT_OUTPUT;
273  if (config->shg == 0 && feature_bitmap == 0)
274  {
275  if ((l2_efp | l2_vtr | l2_pbb) == 0)
276  return;
277  l2output_process_batch_inline (vm, node, config, b, cdo, next, n_left,
278  l2_efp, l2_vtr, l2_pbb, 0, 0);
279  }
280  else if (config->shg == 0)
281  l2output_process_batch_inline (vm, node, config, b, cdo, next, n_left,
282  l2_efp, l2_vtr, l2_pbb, 0, 1);
283  else if (feature_bitmap == 0)
284  l2output_process_batch_inline (vm, node, config, b, cdo, next, n_left,
285  l2_efp, l2_vtr, l2_pbb, 1, 0);
286  else
287  l2output_process_batch_inline (vm, node, config, b, cdo, next, n_left,
288  l2_efp, l2_vtr, l2_pbb, 1, 1);
289 }
290 
292  vlib_node_runtime_t * node,
293  vlib_frame_t * frame)
294 {
295  u32 n_left, *from;
297  vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b;
298  u16 nexts[VLIB_FRAME_SIZE];
299  u32 sw_if_indices[VLIB_FRAME_SIZE], *sw_if_index;
300  i16 cur_data_offsets[VLIB_FRAME_SIZE], *cdo;
301  l2_output_config_t *config;
302  u32 feature_bitmap;
303 
304  from = vlib_frame_vector_args (frame);
305  n_left = frame->n_vectors; /* number of packets to process */
306 
307  vlib_get_buffers (vm, from, bufs, n_left);
308  b = bufs;
309  sw_if_index = sw_if_indices;
310  cdo = cur_data_offsets;
311 
312  /* extract data from buffer metadata */
313  while (n_left >= 8)
314  {
315  /* Prefetch the buffer header for the N+2 loop iteration */
316  vlib_prefetch_buffer_header (b[4], LOAD);
317  vlib_prefetch_buffer_header (b[5], LOAD);
318  vlib_prefetch_buffer_header (b[6], LOAD);
319  vlib_prefetch_buffer_header (b[7], LOAD);
320 
321  sw_if_index[0] = vnet_buffer (b[0])->sw_if_index[VLIB_TX];
322  cdo[0] = b[0]->current_data;
323  sw_if_index[1] = vnet_buffer (b[1])->sw_if_index[VLIB_TX];
324  cdo[1] = b[1]->current_data;
325  sw_if_index[2] = vnet_buffer (b[2])->sw_if_index[VLIB_TX];
326  cdo[2] = b[2]->current_data;
327  sw_if_index[3] = vnet_buffer (b[3])->sw_if_index[VLIB_TX];
328  cdo[3] = b[3]->current_data;
329 
330  /* next */
331  sw_if_index += 4;
332  n_left -= 4;
333  b += 4;
334  cdo += 4;
335  }
336  while (n_left)
337  {
338  sw_if_index[0] = vnet_buffer (b[0])->sw_if_index[VLIB_TX];
339  cdo[0] = b[0]->current_data;
340 
341  /* next */
342  sw_if_index += 1;
343  n_left -= 1;
344  b += 1;
345  cdo += 1;
346  }
347 
348  n_left = frame->n_vectors;
349  while (n_left)
350  {
351  u16 count, new_next, *next;
352  u16 off = frame->n_vectors - n_left;
353  b = bufs + off;
354 
355  if (n_left >= 4)
356  {
357  vlib_prefetch_buffer_header (b[0], LOAD);
358  vlib_prefetch_buffer_header (b[1], LOAD);
359  vlib_prefetch_buffer_header (b[2], LOAD);
360  vlib_prefetch_buffer_header (b[3], LOAD);
361  }
362 
363  sw_if_index = sw_if_indices + off;
364  cdo = cur_data_offsets + off;
365  next = nexts + off;
366 
367  count = clib_count_equal_u32 (sw_if_index, n_left);
368  n_left -= count;
369 
370  config = vec_elt_at_index (msm->configs, sw_if_index[0]);
371  feature_bitmap = config->feature_bitmap;
372  if (PREDICT_FALSE ((feature_bitmap & ~L2OUTPUT_FEAT_OUTPUT) != 0))
374  (l2output_main.l2_out_feat_next, feature_bitmap);
375  else
376  new_next = vec_elt (l2output_main.output_node_index_vec,
377  sw_if_index[0]);
378  clib_memset_u16 (nexts + off, new_next, count);
379 
380  if (new_next == L2OUTPUT_NEXT_DROP)
381  {
383  (b, count, node->errors[L2OUTPUT_ERROR_MAPPING_DROP]);
384  continue;
385  }
386 
387  /* VTR */
388  if (config->out_vtr_flag && config->output_vtr.push_and_pop_bytes)
389  {
390  if (feature_bitmap & L2OUTPUT_FEAT_EFP_FILTER)
391  l2output_process_batch (vm, node, config, b, cdo, next, count,
392  /* l2_efp */ 1,
393  /* l2_vtr */ 1,
394  /* l2_pbb */ 0);
395  else
396  l2output_process_batch (vm, node, config, b, cdo, next, count,
397  /* l2_efp */ 0,
398  /* l2_vtr */ 1,
399  /* l2_pbb */ 0);
400  }
401  else if (config->out_vtr_flag &&
403  l2output_process_batch (vm, node, config, b, cdo, next, count,
404  /* l2_efp */ 0,
405  /* l2_vtr */ 0,
406  /* l2_pbb */ 1);
407  else
408  l2output_process_batch (vm, node, config, b, cdo, next, count,
409  /* l2_efp */ 0,
410  /* l2_vtr */ 0,
411  /* l2_pbb */ 0);
412  }
413 
414 
415  if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)))
416  {
417  n_left = frame->n_vectors; /* number of packets to process */
418  b = bufs;
419 
420  while (n_left)
421  {
422  if (PREDICT_FALSE (b[0]->flags & VLIB_BUFFER_IS_TRACED))
423  {
425  l2output_trace_t *t =
426  vlib_add_trace (vm, node, b[0], sizeof (*t));
427  t->sw_if_index = vnet_buffer (b[0])->sw_if_index[VLIB_TX];
428  h = vlib_buffer_get_current (b[0]);
429  clib_memcpy_fast (t->src, h->src_address, 6);
430  clib_memcpy_fast (t->dst, h->dst_address, 6);
431  clib_memcpy_fast (t->raw, &h->type, sizeof (t->raw));
432  }
433  /* next */
434  n_left--;
435  b++;
436  }
437  }
438 
439  vlib_buffer_enqueue_to_next (vm, node, from, nexts, frame->n_vectors);
441  L2OUTPUT_ERROR_L2OUTPUT, frame->n_vectors);
442 
443  return frame->n_vectors;
444 }
445 
446 /* *INDENT-OFF* */
448  .name = "l2-output",
449  .vector_size = sizeof (u32),
450  .format_trace = format_l2output_trace,
451  .type = VLIB_NODE_TYPE_INTERNAL,
452 
453  .n_errors = ARRAY_LEN(l2output_error_strings),
454  .error_strings = l2output_error_strings,
455 
456  .n_next_nodes = L2OUTPUT_N_NEXT,
457 
458  /* edit / add dispositions here */
459  .next_nodes = {
460  [L2OUTPUT_NEXT_DROP] = "error-drop",
461  [L2OUTPUT_NEXT_BAD_INTF] = "l2-output-bad-intf",
462  },
463 };
464 /* *INDENT-ON* */
465 
466 
467 #define foreach_l2output_bad_intf_error \
468 _(DROP, "L2 output to interface not in L2 mode or deleted")
469 
471 #define _(sym,string) string,
473 #undef _
474 };
475 
476 typedef enum
477 {
478 #define _(sym,str) L2OUTPUT_BAD_INTF_ERROR_##sym,
480 #undef _
483 
484 
485 /**
486  * Output node for interfaces/tunnels which was in L2 mode but were changed
487  * to L3 mode or possibly deleted thereafter. On changing forwarding mode
488  * of any tunnel/interface from L2 to L3, its entry in l2_output_main table
489  * next_nodes.output_node_index_vec[sw_if_index] MUST be set to the value of
490  * L2OUTPUT_NEXT_BAD_INTF. Thus, if there are stale entries in the L2FIB for
491  * this sw_if_index, l2-output will send packets for this sw_if_index to the
492  * l2-output-bad-intf node which just setup the proper drop reason before
493  * sending packets to the error-drop node to drop the packet. Then, stale L2FIB
494  * entries for deleted tunnels won't cause possible packet or memory corruption.
495  */
496 
498  vlib_node_runtime_t * node,
499  vlib_frame_t * frame)
500 {
501  u32 n_left_from, *from, *to_next;
502  l2output_next_t next_index = 0;
503 
504  from = vlib_frame_vector_args (frame);
505  n_left_from = frame->n_vectors; /* number of packets to process */
506 
507  while (n_left_from > 0)
508  {
509  u32 n_left_to_next;
510 
511  /* get space to enqueue frame to graph node "next_index" */
512  vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
513 
514  while (n_left_from >= 4 && n_left_to_next >= 2)
515  {
516  u32 bi0, bi1;
517  vlib_buffer_t *b0, *b1;
518 
519  to_next[0] = bi0 = from[0];
520  to_next[1] = bi1 = from[1];
521  from += 2;
522  to_next += 2;
523  n_left_from -= 2;
524  n_left_to_next -= 2;
525  b0 = vlib_get_buffer (vm, bi0);
526  b1 = vlib_get_buffer (vm, bi1);
527  b0->error = node->errors[L2OUTPUT_BAD_INTF_ERROR_DROP];
528  b1->error = node->errors[L2OUTPUT_BAD_INTF_ERROR_DROP];
529  }
530 
531  while (n_left_from > 0 && n_left_to_next > 0)
532  {
533  u32 bi0;
534  vlib_buffer_t *b0;
535 
536  bi0 = from[0];
537  to_next[0] = bi0;
538  from += 1;
539  to_next += 1;
540  n_left_from -= 1;
541  n_left_to_next -= 1;
542  b0 = vlib_get_buffer (vm, bi0);
543  b0->error = node->errors[L2OUTPUT_BAD_INTF_ERROR_DROP];
544  }
545 
546  vlib_put_next_frame (vm, node, next_index, n_left_to_next);
547  }
548 
549  return frame->n_vectors;
550 }
551 
552 /* *INDENT-OFF* */
554  .name = "l2-output-bad-intf",
555  .vector_size = sizeof (u32),
556  .type = VLIB_NODE_TYPE_INTERNAL,
557 
559  .error_strings = l2output_bad_intf_error_strings,
560 
561  .n_next_nodes = 1,
562 
563  /* edit / add dispositions here */
564  .next_nodes = {
565  [0] = "error-drop",
566  },
567 };
568 /* *INDENT-ON* */
569 
570 static clib_error_t *
572 {
574 
575  mp->vlib_main = vm;
576  mp->vnet_main = vnet_get_main ();
577 
578  /* Create the config vector */
579  vec_validate (mp->configs, 100);
580  /* Until we hook up the CLI config, just create 100 sw interface entries and zero them */
581 
582  /* Initialize the feature next-node indexes */
584  l2output_node.index,
587  mp->l2_out_feat_next);
588 
589  /* Initialize the output node mapping table */
592 
593  return 0;
594 }
595 
597 
598 
599 #ifndef CLIB_MARCH_VARIANT
600 /** Create a mapping in the next node mapping table for the given sw_if_index. */
601 void
604 {
605  vnet_hw_interface_t *hw0 =
606  vnet_get_sup_hw_interface (vnet_main, sw_if_index);
607 
608  /* dynamically create graph node arc */
609  u32 next = vlib_node_add_next (vlib_main, l2output_node.index,
610  hw0->output_node_index);
611  l2output_main.output_node_index_vec[sw_if_index] = next;
612 }
613 
614 /* Get a pointer to the config for the given interface */
617 {
619 
620  vec_validate (mp->configs, sw_if_index);
621  return vec_elt_at_index (mp->configs, sw_if_index);
622 }
623 
624 /** Enable (or disable) the feature in the bitmap for the given interface. */
625 void
627  l2output_feat_masks_t feature_bitmap, u32 enable)
628 {
630  l2_output_config_t *config;
631 
632  vec_validate (mp->configs, sw_if_index);
633  config = vec_elt_at_index (mp->configs, sw_if_index);
634 
635  if (enable)
636  {
637  config->feature_bitmap |= feature_bitmap;
638  }
639  else
640  {
641  config->feature_bitmap &= ~feature_bitmap;
642  }
643 }
644 #endif
645 
646 /*
647  * fd.io coding-style-patch-verification: ON
648  *
649  * Local Variables:
650  * eval: (c-set-style "gnu")
651  * End:
652  */
l2output_bad_intf_error_t
Definition: l2_output.c:476
#define vec_validate(V, I)
Make sure vector is long enough for given index (no header, unspecified alignment) ...
Definition: vec.h:439
#define foreach_l2output_error
Definition: l2_output.h:118
u32 flags
Definition: vhost_user.h:115
vl_api_address_t src
Definition: vxlan_gbp.api:32
#define CLIB_UNUSED(x)
Definition: clib.h:82
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:447
l2output_next_t
Definition: l2_output.h:126
#define clib_memcpy_fast(a, b, c)
Definition: string.h:81
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:553
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:125
u16 vlib_error_t
Definition: error.h:43
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:246
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:419
#define VLIB_NODE_FN(node)
Definition: node.h:201
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:493
static uword vlib_node_add_next(vlib_main_t *vm, uword node, uword next_node)
Definition: node_funcs.h:1092
unsigned char u8
Definition: types.h:56
static clib_error_t * l2output_init(vlib_main_t *vm)
Definition: l2_output.c:571
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:602
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:110
#define static_always_inline
Definition: clib.h:99
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:37
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:188
#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:401
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:616
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:267
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:214
#define PREDICT_FALSE(x)
Definition: clib.h:111
vnet_main_t vnet_main
Definition: misc.c:43
#define foreach_l2output_bad_intf_error
Definition: l2_output.c:467
l2output_main_t l2output_main
Definition: l2_output.c:78
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:338
void l2output_intf_bitmap_enable(u32 sw_if_index, l2output_feat_masks_t feature_bitmap, u32 enable)
Enable (or disable) the feature in the bitmap for the given interface.
Definition: l2_output.c:626
vlib_error_t error
Error code for buffers to be enqueued to error handler.
Definition: buffer.h:139
static void vlib_node_increment_counter(vlib_main_t *vm, u32 node_index, u32 counter_index, u64 increment)
Definition: node_funcs.h:1150
vlib_main_t * vlib_main
Definition: l2_output.h:70
#define VLIB_REGISTER_NODE(x,...)
Definition: node.h:169
#define CLIB_PREFETCH(addr, size, type)
Definition: cache.h:79
vlib_main_t * vm
Definition: buffer.c:301
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:33
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
static char * l2output_feat_names[]
Definition: l2_output.c:32
#define ARRAY_LEN(x)
Definition: clib.h:62
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:452
vtr_config_t output_vtr
Definition: l2_output.h:37
l2output_feat_masks_t
Definition: l2_output.h:110
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:135
size_t count
Definition: vapi.c:47
static char * l2output_error_strings[]
Definition: l2_output.c:111
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:368
#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:1901
Definition: defs.h:47
static char * l2output_bad_intf_error_strings[]
Definition: l2_output.c:470
static void * vlib_frame_vector_args(vlib_frame_t *f)
Get pointer to frame vector data.
Definition: node_funcs.h:244
l2_output_config_t * configs
Definition: l2_output.h:67
#define vnet_buffer(b)
Definition: buffer.h:368
static_always_inline uword clib_count_equal_u32(u32 *data, uword max_count)
Definition: string.h:510
static u8 * format_l2output_trace(u8 *s, va_list *args)
Definition: l2_output.c:92
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:145
#define VLIB_NODE_FLAG_TRACE
Definition: node.h:326
#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:488
#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:62
signed short i16
Definition: types.h:46