FD.io VPP  v20.05.1-6-gf53edbc3b
Vector Packet Processing
encap.c
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1 /*
2  * Copyright (c) 2018 Cisco and/or its affiliates.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at:
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 #include <vppinfra/error.h>
16 #include <vppinfra/hash.h>
17 #include <vnet/vnet.h>
18 #include <vnet/ip/ip.h>
19 #include <vnet/ethernet/ethernet.h>
21 #include <vnet/qos/qos_types.h>
22 #include <vnet/adj/rewrite.h>
23 
24 /* Statistics (not all errors) */
25 #define foreach_vxlan_gbp_encap_error \
26 _(ENCAPSULATED, "good packets encapsulated")
27 
29 #define _(sym,string) string,
31 #undef _
32 };
33 
34 typedef enum
35 {
36 #define _(sym,str) VXLAN_GBP_ENCAP_ERROR_##sym,
38 #undef _
41 
42 typedef enum
43 {
47 
48 typedef struct
49 {
55 
56 #ifndef CLIB_MARCH_VARIANT
57 u8 *
58 format_vxlan_gbp_encap_trace (u8 * s, va_list * args)
59 {
60  CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
61  CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
62  vxlan_gbp_encap_trace_t *t = va_arg (*args, vxlan_gbp_encap_trace_t *);
63 
64  s =
65  format (s,
66  "VXLAN_GBP encap to vxlan_gbp_tunnel%d vni %d sclass %d flags %U",
67  t->tunnel_index, t->vni, t->sclass,
69  return s;
70 }
71 #endif /* CLIB_MARCH_VARIANT */
72 
76  vlib_frame_t * from_frame, u8 is_ip4, u8 csum_offload)
77 {
78  u32 n_left_from, next_index, *from, *to_next;
80  vnet_main_t *vnm = vxm->vnet_main;
82  vlib_combined_counter_main_t *tx_counter =
84  u32 pkts_encapsulated = 0;
85  u32 thread_index = vlib_get_thread_index ();
86  u32 sw_if_index0 = 0, sw_if_index1 = 0;
87  u32 next0 = 0, next1 = 0;
88  vxlan_gbp_tunnel_t *t0 = NULL, *t1 = NULL;
89  index_t dpoi_idx0 = INDEX_INVALID, dpoi_idx1 = INDEX_INVALID;
90  vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b = bufs;
91 
92  from = vlib_frame_vector_args (from_frame);
93  n_left_from = from_frame->n_vectors;
94  vlib_get_buffers (vm, from, bufs, n_left_from);
95 
96  next_index = node->cached_next_index;
97 
98  STATIC_ASSERT_SIZEOF (ip6_vxlan_gbp_header_t, 56);
99  STATIC_ASSERT_SIZEOF (ip4_vxlan_gbp_header_t, 36);
100 
101  u8 const underlay_hdr_len = is_ip4 ?
102  sizeof (ip4_vxlan_gbp_header_t) : sizeof (ip6_vxlan_gbp_header_t);
103  u16 const l3_len = is_ip4 ? sizeof (ip4_header_t) : sizeof (ip6_header_t);
104  u32 const csum_flags = is_ip4 ? VNET_BUFFER_F_OFFLOAD_IP_CKSUM |
105  VNET_BUFFER_F_IS_IP4 | VNET_BUFFER_F_OFFLOAD_UDP_CKSUM :
106  VNET_BUFFER_F_IS_IP6 | VNET_BUFFER_F_OFFLOAD_UDP_CKSUM;
107 
108  while (n_left_from > 0)
109  {
110  u32 n_left_to_next;
111 
112  vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
113 
114  while (n_left_from >= 4 && n_left_to_next >= 2)
115  {
116  /* Prefetch next iteration. */
117  {
118  vlib_buffer_t *p2, *p3;
119 
120  p2 = vlib_get_buffer (vm, from[2]);
121  p3 = vlib_get_buffer (vm, from[3]);
122 
123  vlib_prefetch_buffer_header (p2, LOAD);
124  vlib_prefetch_buffer_header (p3, LOAD);
125 
127  2 * CLIB_CACHE_LINE_BYTES, LOAD);
129  2 * CLIB_CACHE_LINE_BYTES, LOAD);
130  }
131 
132  u32 bi0 = to_next[0] = from[0];
133  u32 bi1 = to_next[1] = from[1];
134  from += 2;
135  to_next += 2;
136  n_left_to_next -= 2;
137  n_left_from -= 2;
138 
139  u32 flow_hash0 = vnet_l2_compute_flow_hash (b[0]);
140  u32 flow_hash1 = vnet_l2_compute_flow_hash (b[1]);
141 
142  /* Get next node index and adj index from tunnel next_dpo */
143  if (sw_if_index0 != vnet_buffer (b[0])->sw_if_index[VLIB_TX])
144  {
145  sw_if_index0 = vnet_buffer (b[0])->sw_if_index[VLIB_TX];
146  vnet_hw_interface_t *hi0 =
147  vnet_get_sup_hw_interface (vnm, sw_if_index0);
148  t0 = &vxm->tunnels[hi0->dev_instance];
149  /* Note: change to always set next0 if it may set to drop */
150  next0 = t0->next_dpo.dpoi_next_node;
151  dpoi_idx0 = t0->next_dpo.dpoi_index;
152  }
153 
154  /* Get next node index and adj index from tunnel next_dpo */
155  if (sw_if_index1 != vnet_buffer (b[1])->sw_if_index[VLIB_TX])
156  {
157  if (sw_if_index0 == vnet_buffer (b[1])->sw_if_index[VLIB_TX])
158  {
159  sw_if_index1 = sw_if_index0;
160  t1 = t0;
161  next1 = next0;
162  dpoi_idx1 = dpoi_idx0;
163  }
164  else
165  {
166  sw_if_index1 = vnet_buffer (b[1])->sw_if_index[VLIB_TX];
167  vnet_hw_interface_t *hi1 =
168  vnet_get_sup_hw_interface (vnm, sw_if_index1);
169  t1 = &vxm->tunnels[hi1->dev_instance];
170  /* Note: change to always set next1 if it may set to drop */
171  next1 = t1->next_dpo.dpoi_next_node;
172  dpoi_idx1 = t1->next_dpo.dpoi_index;
173  }
174  }
175 
176  vnet_buffer (b[0])->ip.adj_index[VLIB_TX] = dpoi_idx0;
177  vnet_buffer (b[1])->ip.adj_index[VLIB_TX] = dpoi_idx1;
178 
179  ASSERT (t0->rewrite_header.data_bytes == underlay_hdr_len);
180  ASSERT (t1->rewrite_header.data_bytes == underlay_hdr_len);
183  underlay_hdr_len);
184 
185  vlib_buffer_advance (b[0], -underlay_hdr_len);
186  vlib_buffer_advance (b[1], -underlay_hdr_len);
187 
188  u32 len0 = vlib_buffer_length_in_chain (vm, b[0]);
189  u32 len1 = vlib_buffer_length_in_chain (vm, b[1]);
190  u16 payload_l0 = clib_host_to_net_u16 (len0 - l3_len);
191  u16 payload_l1 = clib_host_to_net_u16 (len1 - l3_len);
192 
193  void *underlay0 = vlib_buffer_get_current (b[0]);
194  void *underlay1 = vlib_buffer_get_current (b[1]);
195 
196  ip4_header_t *ip4_0, *ip4_1;
197  qos_bits_t ip4_0_tos = 0, ip4_1_tos = 0;
198  ip6_header_t *ip6_0, *ip6_1;
199  udp_header_t *udp0, *udp1;
200  vxlan_gbp_header_t *vxlan_gbp0, *vxlan_gbp1;
201  u8 *l3_0, *l3_1;
202  if (is_ip4)
203  {
204  ip4_vxlan_gbp_header_t *hdr0 = underlay0;
205  ip4_vxlan_gbp_header_t *hdr1 = underlay1;
206 
207  /* Fix the IP4 checksum and length */
208  ip4_0 = &hdr0->ip4;
209  ip4_1 = &hdr1->ip4;
210  ip4_0->length = clib_host_to_net_u16 (len0);
211  ip4_1->length = clib_host_to_net_u16 (len1);
212 
213  if (PREDICT_FALSE (b[0]->flags & VNET_BUFFER_F_QOS_DATA_VALID))
214  {
215  ip4_0_tos = vnet_buffer2 (b[0])->qos.bits;
216  ip4_0->tos = ip4_0_tos;
217  }
218  if (PREDICT_FALSE (b[1]->flags & VNET_BUFFER_F_QOS_DATA_VALID))
219  {
220  ip4_1_tos = vnet_buffer2 (b[1])->qos.bits;
221  ip4_1->tos = ip4_1_tos;
222  }
223 
224  l3_0 = (u8 *) ip4_0;
225  l3_1 = (u8 *) ip4_1;
226  udp0 = &hdr0->udp;
227  udp1 = &hdr1->udp;
228  vxlan_gbp0 = &hdr0->vxlan_gbp;
229  vxlan_gbp1 = &hdr1->vxlan_gbp;
230  }
231  else /* ipv6 */
232  {
233  ip6_vxlan_gbp_header_t *hdr0 = underlay0;
234  ip6_vxlan_gbp_header_t *hdr1 = underlay1;
235 
236  /* Fix IP6 payload length */
237  ip6_0 = &hdr0->ip6;
238  ip6_1 = &hdr1->ip6;
239  ip6_0->payload_length = payload_l0;
240  ip6_1->payload_length = payload_l1;
241 
242  l3_0 = (u8 *) ip6_0;
243  l3_1 = (u8 *) ip6_1;
244  udp0 = &hdr0->udp;
245  udp1 = &hdr1->udp;
246  vxlan_gbp0 = &hdr0->vxlan_gbp;
247  vxlan_gbp1 = &hdr1->vxlan_gbp;
248  }
249 
250  /* Fix UDP length and set source port */
251  udp0->length = payload_l0;
252  udp0->src_port = flow_hash0;
253  udp1->length = payload_l1;
254  udp1->src_port = flow_hash1;
255 
256  /* set source class and gpflags */
257  vxlan_gbp0->gpflags = vnet_buffer2 (b[0])->gbp.flags;
258  vxlan_gbp1->gpflags = vnet_buffer2 (b[1])->gbp.flags;
259  vxlan_gbp0->sclass =
260  clib_host_to_net_u16 (vnet_buffer2 (b[0])->gbp.sclass);
261  vxlan_gbp1->sclass =
262  clib_host_to_net_u16 (vnet_buffer2 (b[1])->gbp.sclass);
263 
264  if (csum_offload)
265  {
266  b[0]->flags |= csum_flags;
267  vnet_buffer (b[0])->l3_hdr_offset = l3_0 - b[0]->data;
268  vnet_buffer (b[0])->l4_hdr_offset = (u8 *) udp0 - b[0]->data;
269  b[1]->flags |= csum_flags;
270  vnet_buffer (b[1])->l3_hdr_offset = l3_1 - b[1]->data;
271  vnet_buffer (b[1])->l4_hdr_offset = (u8 *) udp1 - b[1]->data;
272  }
273  /* IPv4 UDP checksum only if checksum offload is used */
274  else if (is_ip4)
275  {
276  ip_csum_t sum0 = ip4_0->checksum;
277  sum0 = ip_csum_update (sum0, 0, ip4_0->length, ip4_header_t,
278  length /* changed member */ );
279  if (PREDICT_FALSE (ip4_0_tos))
280  {
281  sum0 = ip_csum_update (sum0, 0, ip4_0_tos, ip4_header_t,
282  tos /* changed member */ );
283  }
284  ip4_0->checksum = ip_csum_fold (sum0);
285  ip_csum_t sum1 = ip4_1->checksum;
286  sum1 = ip_csum_update (sum1, 0, ip4_1->length, ip4_header_t,
287  length /* changed member */ );
288  if (PREDICT_FALSE (ip4_1_tos))
289  {
290  sum1 = ip_csum_update (sum1, 0, ip4_1_tos, ip4_header_t,
291  tos /* changed member */ );
292  }
293  ip4_1->checksum = ip_csum_fold (sum1);
294  }
295  /* IPv6 UDP checksum is mandatory */
296  else
297  {
298  int bogus = 0;
299 
301  (vm, b[0], ip6_0, &bogus);
302  ASSERT (bogus == 0);
303  if (udp0->checksum == 0)
304  udp0->checksum = 0xffff;
306  (vm, b[1], ip6_1, &bogus);
307  ASSERT (bogus == 0);
308  if (udp1->checksum == 0)
309  udp1->checksum = 0xffff;
310  }
311 
312  /* save inner packet flow_hash for load-balance node */
313  vnet_buffer (b[0])->ip.flow_hash = flow_hash0;
314  vnet_buffer (b[1])->ip.flow_hash = flow_hash1;
315 
316  vlib_increment_combined_counter (tx_counter, thread_index,
317  sw_if_index0, 1, len0);
318  vlib_increment_combined_counter (tx_counter, thread_index,
319  sw_if_index1, 1, len1);
320  pkts_encapsulated += 2;
321 
322  if (PREDICT_FALSE (b[0]->flags & VLIB_BUFFER_IS_TRACED))
323  {
325  vlib_add_trace (vm, node, b[0], sizeof (*tr));
326  tr->tunnel_index = t0 - vxm->tunnels;
327  tr->vni = t0->vni;
328  tr->sclass = vnet_buffer2 (b[0])->gbp.sclass;
329  tr->flags = vnet_buffer2 (b[0])->gbp.flags;
330  }
331 
332  if (PREDICT_FALSE (b[1]->flags & VLIB_BUFFER_IS_TRACED))
333  {
335  vlib_add_trace (vm, node, b[1], sizeof (*tr));
336  tr->tunnel_index = t1 - vxm->tunnels;
337  tr->vni = t1->vni;
338  tr->sclass = vnet_buffer2 (b[1])->gbp.sclass;
339  tr->flags = vnet_buffer2 (b[1])->gbp.flags;
340  }
341  b += 2;
342 
343  vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
344  to_next, n_left_to_next,
345  bi0, bi1, next0, next1);
346  }
347 
348  while (n_left_from > 0 && n_left_to_next > 0)
349  {
350  u32 bi0 = to_next[0] = from[0];
351  from += 1;
352  to_next += 1;
353  n_left_from -= 1;
354  n_left_to_next -= 1;
355 
356  u32 flow_hash0 = vnet_l2_compute_flow_hash (b[0]);
357 
358  /* Get next node index and adj index from tunnel next_dpo */
359  if (sw_if_index0 != vnet_buffer (b[0])->sw_if_index[VLIB_TX])
360  {
361  sw_if_index0 = vnet_buffer (b[0])->sw_if_index[VLIB_TX];
362  vnet_hw_interface_t *hi0 =
363  vnet_get_sup_hw_interface (vnm, sw_if_index0);
364  t0 = &vxm->tunnels[hi0->dev_instance];
365  /* Note: change to always set next0 if it may be set to drop */
366  next0 = t0->next_dpo.dpoi_next_node;
367  dpoi_idx0 = t0->next_dpo.dpoi_index;
368  }
369  vnet_buffer (b[0])->ip.adj_index[VLIB_TX] = dpoi_idx0;
370 
371  ASSERT (t0->rewrite_header.data_bytes == underlay_hdr_len);
373  underlay_hdr_len);
374 
375  vlib_buffer_advance (b[0], -underlay_hdr_len);
376  void *underlay0 = vlib_buffer_get_current (b[0]);
377 
378  u32 len0 = vlib_buffer_length_in_chain (vm, b[0]);
379  u16 payload_l0 = clib_host_to_net_u16 (len0 - l3_len);
380 
381  vxlan_gbp_header_t *vxlan_gbp0;
382  udp_header_t *udp0;
383  ip4_header_t *ip4_0;
384  qos_bits_t ip4_0_tos = 0;
385  ip6_header_t *ip6_0;
386  u8 *l3_0;
387  if (is_ip4)
388  {
389  ip4_vxlan_gbp_header_t *hdr = underlay0;
390 
391  /* Fix the IP4 checksum and length */
392  ip4_0 = &hdr->ip4;
393  ip4_0->length = clib_host_to_net_u16 (len0);
394 
395  if (PREDICT_FALSE (b[0]->flags & VNET_BUFFER_F_QOS_DATA_VALID))
396  {
397  ip4_0_tos = vnet_buffer2 (b[0])->qos.bits;
398  ip4_0->tos = ip4_0_tos;
399  }
400 
401  l3_0 = (u8 *) ip4_0;
402  udp0 = &hdr->udp;
403  vxlan_gbp0 = &hdr->vxlan_gbp;
404  }
405  else /* ip6 path */
406  {
407  ip6_vxlan_gbp_header_t *hdr = underlay0;
408 
409  /* Fix IP6 payload length */
410  ip6_0 = &hdr->ip6;
411  ip6_0->payload_length = payload_l0;
412 
413  l3_0 = (u8 *) ip6_0;
414  udp0 = &hdr->udp;
415  vxlan_gbp0 = &hdr->vxlan_gbp;
416  }
417 
418  /* Fix UDP length and set source port */
419  udp0->length = payload_l0;
420  udp0->src_port = flow_hash0;
421 
422  /* set source class and gpflags */
423  vxlan_gbp0->gpflags = vnet_buffer2 (b[0])->gbp.flags;
424  vxlan_gbp0->sclass =
425  clib_host_to_net_u16 (vnet_buffer2 (b[0])->gbp.sclass);
426 
427  if (csum_offload)
428  {
429  b[0]->flags |= csum_flags;
430  vnet_buffer (b[0])->l3_hdr_offset = l3_0 - b[0]->data;
431  vnet_buffer (b[0])->l4_hdr_offset = (u8 *) udp0 - b[0]->data;
432  }
433  /* IPv4 UDP checksum only if checksum offload is used */
434  else if (is_ip4)
435  {
436  ip_csum_t sum0 = ip4_0->checksum;
437  sum0 = ip_csum_update (sum0, 0, ip4_0->length, ip4_header_t,
438  length /* changed member */ );
439  if (PREDICT_FALSE (ip4_0_tos))
440  {
441  sum0 = ip_csum_update (sum0, 0, ip4_0_tos, ip4_header_t,
442  tos /* changed member */ );
443  }
444  ip4_0->checksum = ip_csum_fold (sum0);
445  }
446  /* IPv6 UDP checksum is mandatory */
447  else
448  {
449  int bogus = 0;
450 
452  (vm, b[0], ip6_0, &bogus);
453  ASSERT (bogus == 0);
454  if (udp0->checksum == 0)
455  udp0->checksum = 0xffff;
456  }
457 
458  /* save inner packet flow_hash for load-balance node */
459  vnet_buffer (b[0])->ip.flow_hash = flow_hash0;
460 
461  vlib_increment_combined_counter (tx_counter, thread_index,
462  sw_if_index0, 1, len0);
463  pkts_encapsulated++;
464 
465  if (PREDICT_FALSE (b[0]->flags & VLIB_BUFFER_IS_TRACED))
466  {
468  vlib_add_trace (vm, node, b[0], sizeof (*tr));
469  tr->tunnel_index = t0 - vxm->tunnels;
470  tr->vni = t0->vni;
471  tr->sclass = vnet_buffer2 (b[0])->gbp.sclass;
472  tr->flags = vnet_buffer2 (b[0])->gbp.flags;
473  }
474  b += 1;
475 
476  vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
477  to_next, n_left_to_next,
478  bi0, next0);
479  }
480 
481  vlib_put_next_frame (vm, node, next_index, n_left_to_next);
482  }
483 
484  /* Do we still need this now that tunnel tx stats is kept? */
486  VXLAN_GBP_ENCAP_ERROR_ENCAPSULATED,
487  pkts_encapsulated);
488 
489  return from_frame->n_vectors;
490 }
491 
494  vlib_frame_t * from_frame)
495 {
496  /* Disable chksum offload as setup overhead in tx node is not worthwhile
497  for ip4 header checksum only, unless udp checksum is also required */
498  return vxlan_gbp_encap_inline (vm, node, from_frame, /* is_ip4 */ 1,
499  /* csum_offload */ 0);
500 }
501 
504  vlib_frame_t * from_frame)
505 {
506  /* Enable checksum offload for ip6 as udp checksum is mandatory, */
507  return vxlan_gbp_encap_inline (vm, node, from_frame, /* is_ip4 */ 0,
508  /* csum_offload */ 1);
509 }
510 
511 /* *INDENT-OFF* */
513 {
514  .name = "vxlan4-gbp-encap",
515  .vector_size = sizeof (u32),
516  .format_trace = format_vxlan_gbp_encap_trace,
519  .error_strings = vxlan_gbp_encap_error_strings,
520  .n_next_nodes = VXLAN_GBP_ENCAP_N_NEXT,
521  .next_nodes = {
522  [VXLAN_GBP_ENCAP_NEXT_DROP] = "error-drop",
523  },
524 };
525 
527 {
528  .name = "vxlan6-gbp-encap",
529  .vector_size = sizeof (u32),
530  .format_trace = format_vxlan_gbp_encap_trace,
533  .error_strings = vxlan_gbp_encap_error_strings,
534  .n_next_nodes = VXLAN_GBP_ENCAP_N_NEXT,
535  .next_nodes = {
536  [VXLAN_GBP_ENCAP_NEXT_DROP] = "error-drop",
537  },
538 };
539 /* *INDENT-ON* */
540 
541 /*
542  * fd.io coding-style-patch-verification: ON
543  *
544  * Local Variables:
545  * eval: (c-set-style "gnu")
546  * End:
547  */
#define vnet_rewrite_one_header(rw0, p0, most_likely_size)
Definition: rewrite.h:211
u32 flags
buffer flags: VLIB_BUFFER_FREE_LIST_INDEX_MASK: bits used to store free list index, VLIB_BUFFER_IS_TRACED: trace this buffer.
Definition: buffer.h:124
#define CLIB_UNUSED(x)
Definition: clib.h:86
static void vlib_increment_combined_counter(vlib_combined_counter_main_t *cm, u32 thread_index, u32 index, u64 n_packets, u64 n_bytes)
Increment a combined counter.
Definition: counter.h:220
static vnet_hw_interface_t * vnet_get_sup_hw_interface(vnet_main_t *vnm, u32 sw_if_index)
#define vnet_buffer2(b)
Definition: buffer.h:482
vnet_interface_main_t interface_main
Definition: vnet.h:56
vxlan_gbp_encap_error_t
Definition: encap.c:34
vlib_node_registration_t vxlan4_gbp_encap_node
(constructor) VLIB_REGISTER_NODE (vxlan4_gbp_encap_node)
Definition: encap.c:512
u32 index_t
A Data-Path Object is an object that represents actions that are applied to packets are they are swit...
Definition: dpo.h:41
vxlan_gbp_main_t vxlan_gbp_main
Definition: vxlan_gbp.c:34
static uword vxlan_gbp_encap_inline(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame, u8 is_ip4, u8 csum_offload)
Definition: encap.c:74
uword ip_csum_t
Definition: ip_packet.h:244
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:424
#define VLIB_NODE_FN(node)
Definition: node.h:202
static uword vlib_buffer_length_in_chain(vlib_main_t *vm, vlib_buffer_t *b)
Get length in bytes of the buffer chain.
Definition: buffer_funcs.h:402
vlib_node_registration_t vxlan6_gbp_encap_node
(constructor) VLIB_REGISTER_NODE (vxlan6_gbp_encap_node)
Definition: encap.c:526
unsigned char u8
Definition: types.h:56
#define foreach_vxlan_gbp_encap_error
Definition: encap.c:25
vl_api_interface_index_t sw_if_index
Definition: gre.api:53
u8 * format_vxlan_gbp_header_gpflags(u8 *s, va_list *args)
vlib_combined_counter_main_t * combined_sw_if_counters
Definition: interface.h:867
vxlan_gbp_encap_next_t
Definition: encap.c:42
#define vlib_prefetch_buffer_header(b, type)
Prefetch buffer metadata.
Definition: buffer.h:203
unsigned int u32
Definition: types.h:88
#define VLIB_FRAME_SIZE
Definition: node.h:380
vl_api_fib_path_type_t type
Definition: fib_types.api:123
dpo_id_t next_dpo
Definition: vxlan_gbp.h:76
unsigned short u16
Definition: types.h:57
static u32 vnet_l2_compute_flow_hash(vlib_buffer_t *b)
Definition: l2_input.h:276
static char * vxlan_gbp_encap_error_strings[]
Definition: encap.c:28
static void * vlib_buffer_get_current(vlib_buffer_t *b)
Get pointer to current data to process.
Definition: buffer.h:229
#define PREDICT_FALSE(x)
Definition: clib.h:118
#define always_inline
Definition: ipsec.h:28
u32 node_index
Node index.
Definition: node.h:498
#define vlib_validate_buffer_enqueue_x2(vm, node, next_index, to_next, n_left_to_next, bi0, bi1, next0, next1)
Finish enqueueing two buffers forward in the graph.
Definition: buffer_node.h:70
#define vlib_validate_buffer_enqueue_x1(vm, node, next_index, to_next, n_left_to_next, bi0, next0)
Finish enqueueing one buffer forward in the graph.
Definition: buffer_node.h:224
#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
vlib_main_t * vm
Definition: in2out_ed.c:1599
static void vlib_node_increment_counter(vlib_main_t *vm, u32 node_index, u32 counter_index, u64 increment)
Definition: node_funcs.h:1150
#define VLIB_REGISTER_NODE(x,...)
Definition: node.h:169
u32 flags
Definition: vhost_user.h:248
u16 n_vectors
Definition: node.h:399
static_always_inline uword vlib_get_thread_index(void)
Definition: threads.h:218
#define CLIB_PREFETCH(addr, size, type)
Definition: cache.h:80
u8 data[]
Packet data.
Definition: buffer.h:181
#define ARRAY_LEN(x)
Definition: clib.h:66
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:483
vlib_main_t vlib_node_runtime_t * node
Definition: in2out_ed.c:1599
u16 ip6_tcp_udp_icmp_compute_checksum(vlib_main_t *vm, vlib_buffer_t *p0, ip6_header_t *ip0, int *bogus_lengthp)
Definition: ip6_forward.c:1095
u16 cached_next_index
Next frame index that vector arguments were last enqueued to last time this node ran.
Definition: node.h:517
#define ASSERT(truth)
u8 data[128]
Definition: ipsec_types.api:89
ip_dscp_t tos
Definition: ip4_packet.h:141
static void vlib_buffer_advance(vlib_buffer_t *b, word l)
Advance current data pointer by the supplied (signed!) amount.
Definition: buffer.h:248
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:55
Definition: defs.h:47
u16 payload_length
Definition: ip6_packet.h:301
index_t dpoi_index
the index of objects of that type
Definition: dpo.h:186
#define INDEX_INVALID
Invalid index - used when no index is known blazoned capitals INVALID speak volumes where ~0 does not...
Definition: dpo.h:47
VLIB buffer representation.
Definition: buffer.h:102
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:244
#define ip_csum_update(sum, old, new, type, field)
Definition: ip_packet.h:294
A collection of combined counters.
Definition: counter.h:188
vxlan_gbp_tunnel_t * tunnels
Definition: vxlan_gbp.h:167
#define vnet_buffer(b)
Definition: buffer.h:417
u16 dpoi_next_node
The next VLIB node to follow.
Definition: dpo.h:182
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:280
#define vnet_rewrite_two_headers(rw0, rw1, p0, p1, most_likely_size)
Definition: rewrite.h:215
#define CLIB_CACHE_LINE_BYTES
Definition: cache.h:59
#define STATIC_ASSERT_SIZEOF(d, s)
static vlib_buffer_t * vlib_get_buffer(vlib_main_t *vm, u32 buffer_index)
Translate buffer index into buffer pointer.
Definition: buffer_funcs.h:85
u8 qos_bits_t
Type, er, safety for us water based entities.
Definition: qos_types.h:68
static u16 ip_csum_fold(ip_csum_t c)
Definition: ip_packet.h:300
vnet_main_t * vnet_main
Definition: vxlan_gbp.h:189
u8 * format_vxlan_gbp_encap_trace(u8 *s, va_list *args)
Definition: encap.c:58