FD.io VPP  v21.10.1-2-g0a485f517
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/ethernet/ethernet.h>
21 #include <vlib/cli.h>
22 
23 #include <vppinfra/error.h>
24 #include <vppinfra/hash.h>
25 #include <vnet/l2/feat_bitmap.h>
26 #include <vnet/l2/l2_output.h>
27 
28 
29 #ifndef CLIB_MARCH_VARIANT
30 /* Feature graph node names */
31 static char *l2output_feat_names[] = {
32 #define _(sym,name) name,
34 #undef _
35 };
36 
37 char **
39 {
40  return l2output_feat_names;
41 }
42 
43 u8 *
44 format_l2_output_features (u8 * s, va_list * args)
45 {
46  static char *display_names[] = {
47 #define _(sym,name) #sym,
49 #undef _
50  };
51  u32 feature_bitmap = va_arg (*args, u32);
52  u32 verbose = 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  {
63  if (feature_bitmap & (1 << i))
64  {
65  if (verbose)
66  s =
67  format (s, "%17s (%s)\n", display_names[i],
69  else
70  s = format (s, "%s ", l2output_feat_names[i]);
71  }
72  }
73 
74  return s;
75 }
76 
78 #endif
79 
80 typedef struct
81 {
82  /* per-pkt trace data */
83  u8 src[6];
84  u8 dst[6];
86  u8 raw[12]; /* raw data */
88 
89 /* packet trace format function */
90 static u8 *
91 format_l2output_trace (u8 * s, va_list * args)
92 {
93  CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
94  CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
95  l2output_trace_t *t = va_arg (*args, l2output_trace_t *);
96 
97  s = format (s, "l2-output: sw_if_index %d dst %U src %U data "
98  "%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x",
99  t->sw_if_index,
102  t->raw[0], t->raw[1], t->raw[2], t->raw[3], t->raw[4],
103  t->raw[5], t->raw[6], t->raw[7], t->raw[8], t->raw[9],
104  t->raw[10], t->raw[11]);
105 
106  return s;
107 }
108 
109 
110 static char *l2output_error_strings[] = {
111 #define _(sym,string) string,
113 #undef _
114 };
115 
116 /**
117  * Check for split horizon violations.
118  * Return 0 if split horizon check passes, otherwise return non-zero.
119  * Packets should not be transmitted out an interface with the same
120  * split-horizon group as the input interface, except if the @c shg is 0
121  * in which case the check always passes.
122  */
125  vlib_buffer_t * b, u16 * next)
126 {
127  if (shg != vnet_buffer (b)->l2.shg)
128  return;
130  b->error = node->errors[L2OUTPUT_ERROR_SHG_DROP];
131 }
132 
135  l2_output_config_t * config,
136  vlib_buffer_t ** b, i16 * cdo, u16 * next,
137  u32 n_left, int l2_efp, int l2_vtr, int l2_pbb,
138  int shg_set, int update_feature_bitmap)
139 {
140  while (n_left >= 8)
141  {
142  vlib_prefetch_buffer_header (b[4], LOAD);
143  vlib_prefetch_buffer_header (b[5], LOAD);
144  vlib_prefetch_buffer_header (b[6], LOAD);
145  vlib_prefetch_buffer_header (b[7], LOAD);
146 
147  /* prefetch eth headers only if we need to touch them */
148  if (l2_vtr || l2_pbb || shg_set)
149  {
150  clib_prefetch_load (b[4]->data + cdo[4]);
151  clib_prefetch_load (b[5]->data + cdo[5]);
152  clib_prefetch_load (b[6]->data + cdo[6]);
153  clib_prefetch_load (b[7]->data + cdo[7]);
154  }
155 
156  if (update_feature_bitmap)
157  {
158  vnet_buffer (b[0])->l2.feature_bitmap = config->feature_bitmap;
159  vnet_buffer (b[1])->l2.feature_bitmap = config->feature_bitmap;
160  vnet_buffer (b[2])->l2.feature_bitmap = config->feature_bitmap;
161  vnet_buffer (b[3])->l2.feature_bitmap = config->feature_bitmap;
162  }
163 
164  if (l2_vtr)
165  {
166  int i;
167  for (i = 0; i < 4; i++)
168  {
169  u32 failed1 = l2_efp &&
170  l2_efp_filter_process (b[i], &(config->input_vtr));
171  u32 failed2 = l2_vtr_process (b[i], &(config->output_vtr));
172  if (PREDICT_FALSE (failed1 | failed2))
173  {
175  if (failed2)
176  b[i]->error = node->errors[L2OUTPUT_ERROR_VTR_DROP];
177  if (failed1)
178  b[i]->error = node->errors[L2OUTPUT_ERROR_EFP_DROP];
179  }
180  }
181  }
182 
183  if (l2_pbb)
184  {
185  int i;
186  for (i = 0; i < 4; i++)
187  if (l2_pbb_process (b[i], &(config->output_pbb_vtr)))
188  {
190  b[i]->error = node->errors[L2OUTPUT_ERROR_VTR_DROP];
191  }
192  }
193 
194  if (shg_set)
195  {
196  split_horizon_violation (node, config->shg, b[0], next);
197  split_horizon_violation (node, config->shg, b[1], next + 1);
198  split_horizon_violation (node, config->shg, b[2], next + 2);
199  split_horizon_violation (node, config->shg, b[3], next + 3);
200  }
201  /* next */
202  n_left -= 4;
203  b += 4;
204  next += 4;
205  cdo += 4;
206  }
207 
208  while (n_left)
209  {
210  if (update_feature_bitmap)
211  vnet_buffer (b[0])->l2.feature_bitmap = config->feature_bitmap;
212 
213  if (l2_vtr)
214  {
215  u32 failed1 = l2_efp &&
216  l2_efp_filter_process (b[0], &(config->input_vtr));
217  u32 failed2 = l2_vtr_process (b[0], &(config->output_vtr));
218  if (PREDICT_FALSE (failed1 | failed2))
219  {
221  if (failed2)
222  b[0]->error = node->errors[L2OUTPUT_ERROR_VTR_DROP];
223  if (failed1)
224  b[0]->error = node->errors[L2OUTPUT_ERROR_EFP_DROP];
225  }
226  }
227 
228  if (l2_pbb && l2_pbb_process (b[0], &(config->output_pbb_vtr)))
229  {
231  b[0]->error = node->errors[L2OUTPUT_ERROR_VTR_DROP];
232  }
233 
234  if (shg_set)
235  split_horizon_violation (node, config->shg, b[0], next);
236 
237  /* next */
238  n_left -= 1;
239  b += 1;
240  next += 1;
241  }
242 }
243 
246 {
247  while (n_left >= 8)
248  {
249  vlib_prefetch_buffer_header (b[4], LOAD);
250  vlib_prefetch_buffer_header (b[5], LOAD);
251  vlib_prefetch_buffer_header (b[6], LOAD);
252  vlib_prefetch_buffer_header (b[7], LOAD);
253  b[0]->error = b[1]->error = b[2]->error = b[3]->error = error;
254  b += 4;
255  n_left -= 4;
256  }
257  while (n_left)
258  {
259  b[0]->error = error;
260  b += 1;
261  n_left -= 1;
262  }
263 }
264 
267  l2_output_config_t * config, vlib_buffer_t ** b,
268  i16 * cdo, u16 * next, u32 n_left, int l2_efp,
269  int l2_vtr, int l2_pbb)
270 {
271  u32 feature_bitmap = config->feature_bitmap & ~L2OUTPUT_FEAT_OUTPUT;
272  if (config->shg == 0 && feature_bitmap == 0)
273  {
274  if ((l2_efp | l2_vtr | l2_pbb) == 0)
275  return;
276  l2output_process_batch_inline (vm, node, config, b, cdo, next, n_left,
277  l2_efp, l2_vtr, l2_pbb, 0, 0);
278  }
279  else if (config->shg == 0)
280  l2output_process_batch_inline (vm, node, config, b, cdo, next, n_left,
281  l2_efp, l2_vtr, l2_pbb, 0, 1);
282  else if (feature_bitmap == 0)
283  l2output_process_batch_inline (vm, node, config, b, cdo, next, n_left,
284  l2_efp, l2_vtr, l2_pbb, 1, 0);
285  else
286  l2output_process_batch_inline (vm, node, config, b, cdo, next, n_left,
287  l2_efp, l2_vtr, l2_pbb, 1, 1);
288 }
289 
293 {
294  u32 n_left, *from;
299  i16 cur_data_offsets[VLIB_FRAME_SIZE], *cdo;
300  l2_output_config_t *config;
301  u32 feature_bitmap;
302 
304  n_left = frame->n_vectors; /* number of packets to process */
305 
307  b = bufs;
309  cdo = cur_data_offsets;
310 
311  /* extract data from buffer metadata */
312  while (n_left >= 8)
313  {
314  /* Prefetch the buffer header for the N+2 loop iteration */
315  vlib_prefetch_buffer_header (b[4], LOAD);
316  vlib_prefetch_buffer_header (b[5], LOAD);
317  vlib_prefetch_buffer_header (b[6], LOAD);
318  vlib_prefetch_buffer_header (b[7], LOAD);
319 
320  sw_if_index[0] = vnet_buffer (b[0])->sw_if_index[VLIB_TX];
321  cdo[0] = b[0]->current_data;
322  sw_if_index[1] = vnet_buffer (b[1])->sw_if_index[VLIB_TX];
323  cdo[1] = b[1]->current_data;
324  sw_if_index[2] = vnet_buffer (b[2])->sw_if_index[VLIB_TX];
325  cdo[2] = b[2]->current_data;
326  sw_if_index[3] = vnet_buffer (b[3])->sw_if_index[VLIB_TX];
327  cdo[3] = b[3]->current_data;
328 
329  /* next */
330  sw_if_index += 4;
331  n_left -= 4;
332  b += 4;
333  cdo += 4;
334  }
335  while (n_left)
336  {
337  sw_if_index[0] = vnet_buffer (b[0])->sw_if_index[VLIB_TX];
338  cdo[0] = b[0]->current_data;
339 
340  /* next */
341  sw_if_index += 1;
342  n_left -= 1;
343  b += 1;
344  cdo += 1;
345  }
346 
347  n_left = frame->n_vectors;
348  while (n_left)
349  {
350  u16 count, new_next, *next;
351  u16 off = frame->n_vectors - n_left;
352  b = bufs + off;
353 
354  if (n_left >= 4)
355  {
356  vlib_prefetch_buffer_header (b[0], LOAD);
357  vlib_prefetch_buffer_header (b[1], LOAD);
358  vlib_prefetch_buffer_header (b[2], LOAD);
359  vlib_prefetch_buffer_header (b[3], LOAD);
360  }
361 
363  cdo = cur_data_offsets + off;
364  next = nexts + off;
365 
367  n_left -= count;
368 
369  config = vec_elt_at_index (msm->configs, sw_if_index[0]);
370  feature_bitmap = config->feature_bitmap;
371  if (PREDICT_FALSE ((feature_bitmap & ~L2OUTPUT_FEAT_OUTPUT) != 0))
373  (l2output_main.l2_out_feat_next, feature_bitmap);
374  else
376  sw_if_index[0]);
377  clib_memset_u16 (nexts + off, new_next, count);
378 
379  if (new_next == L2OUTPUT_NEXT_DROP)
380  {
382  (b, count, node->errors[L2OUTPUT_ERROR_MAPPING_DROP]);
383  continue;
384  }
385 
386  /* VTR */
387  if (config->out_vtr_flag && config->output_vtr.push_and_pop_bytes)
388  {
389  if (feature_bitmap & L2OUTPUT_FEAT_EFP_FILTER)
390  l2output_process_batch (vm, node, config, b, cdo, next, count,
391  /* l2_efp */ 1,
392  /* l2_vtr */ 1,
393  /* l2_pbb */ 0);
394  else
395  l2output_process_batch (vm, node, config, b, cdo, next, count,
396  /* l2_efp */ 0,
397  /* l2_vtr */ 1,
398  /* l2_pbb */ 0);
399  }
400  else if (config->out_vtr_flag &&
402  l2output_process_batch (vm, node, config, b, cdo, next, count,
403  /* l2_efp */ 0,
404  /* l2_vtr */ 0,
405  /* l2_pbb */ 1);
406  else
407  l2output_process_batch (vm, node, config, b, cdo, next, count,
408  /* l2_efp */ 0,
409  /* l2_vtr */ 0,
410  /* l2_pbb */ 0);
411  }
412 
413 
414  if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)))
415  {
416  n_left = frame->n_vectors; /* number of packets to process */
417  b = bufs;
418 
419  while (n_left)
420  {
421  if (PREDICT_FALSE (b[0]->flags & VLIB_BUFFER_IS_TRACED))
422  {
424  l2output_trace_t *t =
425  vlib_add_trace (vm, node, b[0], sizeof (*t));
426  t->sw_if_index = vnet_buffer (b[0])->sw_if_index[VLIB_TX];
427  h = vlib_buffer_get_current (b[0]);
428  clib_memcpy_fast (t->src, h->src_address, 6);
429  clib_memcpy_fast (t->dst, h->dst_address, 6);
430  clib_memcpy_fast (t->raw, &h->type, sizeof (t->raw));
431  }
432  /* next */
433  n_left--;
434  b++;
435  }
436  }
437 
440  L2OUTPUT_ERROR_L2OUTPUT, frame->n_vectors);
441 
442  return frame->n_vectors;
443 }
444 
445 /* *INDENT-OFF* */
447  .name = "l2-output",
448  .vector_size = sizeof (u32),
449  .format_trace = format_l2output_trace,
451 
452  .n_errors = ARRAY_LEN(l2output_error_strings),
453  .error_strings = l2output_error_strings,
454 
455  .n_next_nodes = L2OUTPUT_N_NEXT,
456 
457  /* edit / add dispositions here */
458  .next_nodes = {
459  [L2OUTPUT_NEXT_DROP] = "error-drop",
460  [L2OUTPUT_NEXT_BAD_INTF] = "l2-output-bad-intf",
461  },
462 };
463 /* *INDENT-ON* */
464 
465 
466 #define foreach_l2output_bad_intf_error \
467 _(DROP, "L2 output to interface not in L2 mode or deleted")
468 
470 #define _(sym,string) string,
472 #undef _
473 };
474 
475 typedef enum
476 {
477 #define _(sym,str) L2OUTPUT_BAD_INTF_ERROR_##sym,
479 #undef _
482 
483 
484 /**
485  * Output node for interfaces/tunnels which was in L2 mode but were changed
486  * to L3 mode or possibly deleted thereafter. On changing forwarding mode
487  * of any tunnel/interface from L2 to L3, its entry in l2_output_main table
488  * next_nodes.output_node_index_vec[sw_if_index] MUST be set to the value of
489  * L2OUTPUT_NEXT_BAD_INTF. Thus, if there are stale entries in the L2FIB for
490  * this sw_if_index, l2-output will send packets for this sw_if_index to the
491  * l2-output-bad-intf node which just setup the proper drop reason before
492  * sending packets to the error-drop node to drop the packet. Then, stale L2FIB
493  * entries for deleted tunnels won't cause possible packet or memory corruption.
494  */
495 
499 {
500  u32 n_left_from, *from, *to_next;
502 
504  n_left_from = frame->n_vectors; /* number of packets to process */
505 
506  while (n_left_from > 0)
507  {
508  u32 n_left_to_next;
509 
510  /* get space to enqueue frame to graph node "next_index" */
511  vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
512 
513  while (n_left_from >= 4 && n_left_to_next >= 2)
514  {
515  u32 bi0, bi1;
516  vlib_buffer_t *b0, *b1;
517 
518  to_next[0] = bi0 = from[0];
519  to_next[1] = bi1 = from[1];
520  from += 2;
521  to_next += 2;
522  n_left_from -= 2;
523  n_left_to_next -= 2;
524  b0 = vlib_get_buffer (vm, bi0);
525  b1 = vlib_get_buffer (vm, bi1);
526  b0->error = node->errors[L2OUTPUT_BAD_INTF_ERROR_DROP];
527  b1->error = node->errors[L2OUTPUT_BAD_INTF_ERROR_DROP];
528  }
529 
530  while (n_left_from > 0 && n_left_to_next > 0)
531  {
532  u32 bi0;
533  vlib_buffer_t *b0;
534 
535  bi0 = from[0];
536  to_next[0] = bi0;
537  from += 1;
538  to_next += 1;
539  n_left_from -= 1;
540  n_left_to_next -= 1;
541  b0 = vlib_get_buffer (vm, bi0);
542  b0->error = node->errors[L2OUTPUT_BAD_INTF_ERROR_DROP];
543  }
544 
545  vlib_put_next_frame (vm, node, next_index, n_left_to_next);
546  }
547 
548  return frame->n_vectors;
549 }
550 
551 /* *INDENT-OFF* */
553  .name = "l2-output-bad-intf",
554  .vector_size = sizeof (u32),
556 
558  .error_strings = l2output_bad_intf_error_strings,
559 
560  .n_next_nodes = 1,
561 
562  /* edit / add dispositions here */
563  .next_nodes = {
564  [0] = "error-drop",
565  },
566 };
567 /* *INDENT-ON* */
568 
569 static clib_error_t *
571 {
573 
574  mp->vlib_main = vm;
575  mp->vnet_main = vnet_get_main ();
576 
577  /* Create the config vector */
578  vec_validate (mp->configs, 100);
579  /* Until we hook up the CLI config, just create 100 sw interface entries and zero them */
580 
581  /* Initialize the feature next-node indexes */
583  l2output_node.index,
586  mp->l2_out_feat_next);
587 
588  /* Initialize the output node mapping table */
591 
592  return 0;
593 }
594 
596 
597 
598 #ifndef CLIB_MARCH_VARIANT
599 /** Create a mapping in the next node mapping table for the given sw_if_index. */
600 void
603 {
604  vnet_hw_interface_t *hw0 =
606 
607  /* dynamically create graph node arc */
609  hw0->output_node_index);
611 }
612 
613 /* Get a pointer to the config for the given interface */
616 {
618 
620  return vec_elt_at_index (mp->configs, sw_if_index);
621 }
622 
623 /** Enable (or disable) the feature in the bitmap for the given interface. */
624 void
626  l2output_feat_masks_t feature_bitmap, u32 enable)
627 {
629  l2_output_config_t *config;
630 
632  config = vec_elt_at_index (mp->configs, sw_if_index);
633 
634  if (enable)
635  {
636  config->feature_bitmap |= feature_bitmap;
637  }
638  else
639  {
640  config->feature_bitmap &= ~feature_bitmap;
641  }
642 }
643 #endif
644 
645 /*
646  * fd.io coding-style-patch-verification: ON
647  *
648  * Local Variables:
649  * eval: (c-set-style "gnu")
650  * End:
651  */
l2output_feat_names
static char * l2output_feat_names[]
Definition: l2_output.c:31
vlib.h
l2_output_config_t::output_pbb_vtr
ptr_config_t output_pbb_vtr
Definition: l2_output.h:39
bufs
vlib_buffer_t * bufs[VLIB_FRAME_SIZE]
Definition: nat44_ei_out2in.c:717
raw
const char *const const char *const raw
Definition: cJSON.h:270
L2OUTPUT_N_NEXT
@ L2OUTPUT_N_NEXT
Definition: l2_output.h:131
frame
vlib_main_t vlib_node_runtime_t vlib_frame_t * frame
Definition: nat44_ei.c:3048
vlib_prefetch_buffer_header
#define vlib_prefetch_buffer_header(b, type)
Prefetch buffer metadata.
Definition: buffer.h:231
l2output_bad_intf_error_strings
static char * l2output_bad_intf_error_strings[]
Definition: l2_output.c:469
l2output_trace_t
Definition: l2_output.c:80
vlib_node_add_next
static uword vlib_node_add_next(vlib_main_t *vm, uword node, uword next_node)
Definition: node_funcs.h:1177
l2output_create_output_node_mapping
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:601
next_index
nat44_ei_hairpin_src_next_t next_index
Definition: nat44_ei_hairpinning.c:412
foreach_l2output_bad_intf_error
#define foreach_l2output_bad_intf_error
Definition: l2_output.c:466
l2_output_config_t::feature_bitmap
u32 feature_bitmap
Definition: l2_output.h:41
vlib_get_buffer
static vlib_buffer_t * vlib_get_buffer(vlib_main_t *vm, u32 buffer_index)
Translate buffer index into buffer pointer.
Definition: buffer_funcs.h:111
clib_memset_u16
static_always_inline void clib_memset_u16(void *p, u16 val, uword count)
Definition: string.h:395
format_ethernet_address
u8 * format_ethernet_address(u8 *s, va_list *args)
Definition: format.c:44
vlib_get_buffers
vlib_get_buffers(vm, from, b, n_left_from)
format_l2_output_features
u8 * format_l2_output_features(u8 *s, va_list *args)
Definition: l2_output.c:44
next
u16 * next
Definition: nat44_ei_out2in.c:718
vtr_config_t::push_and_pop_bytes
u16 push_and_pop_bytes
Definition: l2_vtr.h:65
VLIB_NODE_TYPE_INTERNAL
@ VLIB_NODE_TYPE_INTERNAL
Definition: node.h:72
VLIB_FRAME_SIZE
#define VLIB_FRAME_SIZE
Definition: node.h:368
l2_pbb_process
static u32 l2_pbb_process(vlib_buffer_t *b0, ptr_config_t *config)
Definition: l2_vtr.h:202
node
vlib_main_t vlib_node_runtime_t * node
Definition: nat44_ei.c:3047
format_l2output_trace
static u8 * format_l2output_trace(u8 *s, va_list *args)
Definition: l2_output.c:91
l2output_process_batch
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:266
ptr_config_t::push_and_pop_bytes
u16 push_and_pop_bytes
Definition: l2_vtr.h:197
u16
unsigned short u16
Definition: types.h:57
l2output_trace_t::src
u8 src[6]
Definition: l2_output.c:83
vm
vlib_main_t * vm
X-connect all packets from the HOST to the PHY.
Definition: nat44_ei.c:3047
l2output_trace_t::sw_if_index
u32 sw_if_index
Definition: l2_output.c:85
vlib_buffer_enqueue_to_next
vlib_buffer_enqueue_to_next(vm, node, from,(u16 *) nexts, frame->n_vectors)
l2output_main_t::vnet_main
vnet_main_t * vnet_main
Definition: l2_output.h:71
vlib_frame_t
Definition: node.h:372
clib_memcpy_fast
static_always_inline void * clib_memcpy_fast(void *restrict dst, const void *restrict src, size_t n)
Definition: string.h:92
ethernet.h
h
h
Definition: flowhash_template.h:372
error
Definition: cJSON.c:88
vec_elt
#define vec_elt(v, i)
Get vector value at index i.
Definition: vec_bootstrap.h:210
i16
signed short i16
Definition: types.h:46
vlib_buffer_t::current_data
i16 current_data
signed offset in data[], pre_data[] that we are currently processing.
Definition: buffer.h:119
hash.h
l2_vtr_process
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:76
count
u8 count
Definition: dhcp.api:208
vlib_buffer_t::error
vlib_error_t error
Error code for buffers to be enqueued to error handler.
Definition: buffer.h:145
l2output_main_t::output_node_index_vec
u32 * output_node_index_vec
Definition: l2_output.h:58
l2_output_config_t::out_vtr_flag
u8 out_vtr_flag
Definition: l2_output.h:47
error.h
l2output_set_buffer_error
static_always_inline void l2output_set_buffer_error(vlib_buffer_t **b, u32 n_left, vlib_error_t error)
Definition: l2_output.c:245
VLIB_NODE_FN
#define VLIB_NODE_FN(node)
Definition: node.h:202
l2output_bad_intf_error_t
l2output_bad_intf_error_t
Definition: l2_output.c:475
l2_output.h
CLIB_UNUSED
#define CLIB_UNUSED(x)
Definition: clib.h:90
vnet_buffer
#define vnet_buffer(b)
Definition: buffer.h:441
l2output_get_feat_names
char ** l2output_get_feat_names(void)
Definition: l2_output.c:38
shg
u8 shg
Definition: l2.api:360
vec_elt_at_index
#define vec_elt_at_index(v, i)
Get vector value at index i checking that i is in bounds.
Definition: vec_bootstrap.h:203
vnet_get_main
vnet_main_t * vnet_get_main(void)
Definition: pnat_test_stubs.h:56
VLIB_NODE_FLAG_TRACE
#define VLIB_NODE_FLAG_TRACE
Definition: node.h:291
L2OUTPUT_N_FEAT
@ L2OUTPUT_N_FEAT
Definition: l2_output.h:105
l2output_feat_masks_t
l2output_feat_masks_t
Definition: l2_output.h:111
PREDICT_FALSE
#define PREDICT_FALSE(x)
Definition: clib.h:124
ARRAY_LEN
#define ARRAY_LEN(x)
Definition: clib.h:70
vlib_frame_vector_args
static void * vlib_frame_vector_args(vlib_frame_t *f)
Get pointer to frame vector data.
Definition: node_funcs.h:301
l2_efp_filter_process
static u8 l2_efp_filter_process(vlib_buffer_t *b0, vtr_config_t *in_config)
Definition: l2_vtr.h:142
static_always_inline
#define static_always_inline
Definition: clib.h:112
l2_output_config_t::output_vtr
vtr_config_t output_vtr
Definition: l2_output.h:37
split_horizon_violation
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:124
ethernet_header_t
Definition: packet.h:52
vlib_node_increment_counter
static void vlib_node_increment_counter(vlib_main_t *vm, u32 node_index, u32 counter_index, u64 increment)
Definition: node_funcs.h:1244
l2output_process_batch_inline
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:134
vec_validate
#define vec_validate(V, I)
Make sure vector is long enough for given index (no header, unspecified alignment)
Definition: vec.h:523
src
vl_api_address_t src
Definition: gre.api:54
clib_count_equal_u32
static_always_inline uword clib_count_equal_u32(u32 *data, uword max_count)
Definition: string.h:535
foreach_l2output_feat
@ foreach_l2output_feat
Definition: l2_output.h:115
l2output_main_t::l2_out_feat_next
u32 l2_out_feat_next[32]
Definition: l2_output.h:64
vlib_node_registration_t
struct _vlib_node_registration vlib_node_registration_t
data
u8 data[128]
Definition: ipsec_types.api:95
l2output_intf_config
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:615
vnet_hw_interface_t
Definition: interface.h:638
vnet_main_t
Definition: vnet.h:76
L2OUTPUT_BAD_INTF_N_ERROR
@ L2OUTPUT_BAD_INTF_N_ERROR
Definition: l2_output.c:480
l2output_intf_bitmap_enable
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:625
format
description fragment has unexpected format
Definition: map.api:433
vec_validate_init_empty
#define vec_validate_init_empty(V, I, INIT)
Make sure vector is long enough for given index and initialize empty space (no header,...
Definition: vec.h:570
off
u32 off
Definition: interface_output.c:1096
vlib_put_next_frame
vlib_put_next_frame(vm, node, next_index, 0)
l2output_main_t::vlib_main
vlib_main_t * vlib_main
Definition: l2_output.h:70
u32
unsigned int u32
Definition: types.h:88
VLIB_INIT_FUNCTION
#define VLIB_INIT_FUNCTION(x)
Definition: init.h:172
vnet_get_sup_hw_interface
static vnet_hw_interface_t * vnet_get_sup_hw_interface(vnet_main_t *vnm, u32 sw_if_index)
Definition: interface_funcs.h:92
l2output_main
l2output_main_t l2output_main
Definition: l2_output.c:77
clib_prefetch_load
static_always_inline void clib_prefetch_load(void *p)
Definition: cache.h:92
dst
vl_api_ip4_address_t dst
Definition: pnat.api:41
cli.h
n_left
u32 n_left
Definition: interface_output.c:1096
L2OUTPUT_NEXT_BAD_INTF
@ L2OUTPUT_NEXT_BAD_INTF
Definition: l2_output.h:130
l2_output_config_t
Definition: l2_output.h:28
feat_bitmap_get_next_node_index
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
foreach_l2output_error
#define foreach_l2output_error
Definition: l2_output.h:119
vnet_main
vnet_main_t vnet_main
Definition: misc.c:43
vlib_main_t
Definition: main.h:102
vlib_node_t
Definition: node.h:247
l2output_node
vlib_node_registration_t l2output_node
(constructor) VLIB_REGISTER_NODE (l2output_node)
Definition: l2_output.c:446
vlib_add_trace
void * vlib_add_trace(vlib_main_t *vm, vlib_node_runtime_t *r, vlib_buffer_t *b, u32 n_data_bytes)
Definition: trace.c:628
l2_output_config_t::shg
u8 shg
Definition: l2_output.h:44
b
vlib_buffer_t ** b
Definition: nat44_ei_out2in.c:717
u8
unsigned char u8
Definition: types.h:56
clib_error_t
Definition: clib_error.h:21
vlib_buffer_get_current
static void * vlib_buffer_get_current(vlib_buffer_t *b)
Get pointer to current data to process.
Definition: buffer.h:257
feat_bitmap.h
vnet_hw_interface_t::output_node_index
u32 output_node_index
Definition: interface.h:653
vlib_init_function_t
clib_error_t *() vlib_init_function_t(struct vlib_main_t *vm)
Definition: init.h:51
i
int i
Definition: flowhash_template.h:376
l2output_next_t
l2output_next_t
Definition: l2_output.h:127
nexts
u16 nexts[VLIB_FRAME_SIZE]
Definition: nat44_ei_out2in.c:718
l2output_bad_intf_node
vlib_node_registration_t l2output_bad_intf_node
(constructor) VLIB_REGISTER_NODE (l2output_bad_intf_node)
Definition: l2_output.c:552
vlib_main
int vlib_main(vlib_main_t *volatile vm, unformat_input_t *input)
Definition: main.c:1914
vlib_error_t
u16 vlib_error_t
Definition: error.h:45
vnet.h
vlib_node_runtime_t
Definition: node.h:454
from
from
Definition: nat44_ei_hairpinning.c:415
sw_if_index
vl_api_interface_index_t sw_if_index
Definition: wireguard.api:34
l2output_trace_t::dst
u8 dst[6]
Definition: l2_output.c:84
vlib_get_next_frame
#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:395
sw_if_indices
u32 sw_if_indices[VLIB_FRAME_SIZE]
Definition: interface_output.c:1093
VLIB_TX
@ VLIB_TX
Definition: defs.h:47
n_left_from
n_left_from
Definition: nat44_ei_hairpinning.c:416
l2output_main_t::configs
l2_output_config_t * configs
Definition: l2_output.h:67
l2output_init
static clib_error_t * l2output_init(vlib_main_t *vm)
Definition: l2_output.c:570
feat_bitmap_init_next_nodes
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
type
vl_api_fib_path_type_t type
Definition: fib_types.api:123
l2_output_config_t::input_vtr
vtr_config_t input_vtr
Definition: l2_output.h:36
L2OUTPUT_NEXT_DROP
@ L2OUTPUT_NEXT_DROP
Definition: l2_output.h:129
l2output_main_t
Definition: l2_output.h:51
vlib_buffer_t
VLIB buffer representation.
Definition: buffer.h:111
l2output_trace_t::raw
u8 raw[12]
Definition: l2_output.c:86
VLIB_REGISTER_NODE
#define VLIB_REGISTER_NODE(x,...)
Definition: node.h:169
l2output_error_strings
static char * l2output_error_strings[]
Definition: l2_output.c:110
flags
vl_api_wireguard_peer_flags_t flags
Definition: wireguard.api:105