FD.io VPP  v20.05.1-6-gf53edbc3b
Vector Packet Processing
node.h
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2015 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 /*
16  * node.h: VLIB processing nodes
17  *
18  * Copyright (c) 2008 Eliot Dresselhaus
19  *
20  * Permission is hereby granted, free of charge, to any person obtaining
21  * a copy of this software and associated documentation files (the
22  * "Software"), to deal in the Software without restriction, including
23  * without limitation the rights to use, copy, modify, merge, publish,
24  * distribute, sublicense, and/or sell copies of the Software, and to
25  * permit persons to whom the Software is furnished to do so, subject to
26  * the following conditions:
27  *
28  * The above copyright notice and this permission notice shall be
29  * included in all copies or substantial portions of the Software.
30  *
31  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
32  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
33  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
34  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
35  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
36  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
37  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
38  */
39 
40 #ifndef included_vlib_node_h
41 #define included_vlib_node_h
42 
43 #include <vppinfra/cpu.h>
44 #include <vppinfra/longjmp.h>
45 #include <vppinfra/lock.h>
46 #include <vlib/trace.h> /* for vlib_trace_filter_t */
47 
48 /* Forward declaration. */
49 struct vlib_node_runtime_t;
50 struct vlib_frame_t;
51 
52 /* Internal nodes (including output nodes) move data from node to
53  node (or out of the graph for output nodes). */
55  struct vlib_node_runtime_t * node,
56  struct vlib_frame_t * frame);
57 
58 typedef enum
59 {
68 
69 typedef enum
70 {
71  /* An internal node on the call graph (could be output). */
73 
74  /* Nodes which input data into the processing graph.
75  Input nodes are called for each iteration of main loop. */
77 
78  /* Nodes to be called before all input nodes.
79  Used, for example, to clean out driver TX rings before
80  processing input. */
82 
83  /* "Process" nodes which can be suspended and later resumed. */
85 
88 
89 typedef struct _vlib_node_fn_registration
90 {
91  vlib_node_function_t *function;
92  int priority;
93  struct _vlib_node_fn_registration *next_registration;
94  char *name;
96 
97 typedef struct _vlib_node_registration
98 {
99  /* Vector processing function for this node. */
100  vlib_node_function_t *function;
101 
102  /* Node function candidate registration with priority */
103  vlib_node_fn_registration_t *node_fn_registrations;
104 
105  /* Node name. */
106  char *name;
107 
108  /* Name of sibling (if applicable). */
109  char *sibling_of;
110 
111  /* Node index filled in by registration. */
112  u32 index;
113 
114  /* Type of this node. */
115  vlib_node_type_t type;
116 
117  /* Error strings indexed by error code for this node. */
118  char **error_strings;
119 
120  /* Buffer format/unformat for this node. */
121  format_function_t *format_buffer;
122  unformat_function_t *unformat_buffer;
123 
124  /* Trace format/unformat for this node. */
125  format_function_t *format_trace;
126  unformat_function_t *unformat_trace;
127 
128  /* Function to validate incoming frames. */
129  u8 *(*validate_frame) (struct vlib_main_t * vm,
130  struct vlib_node_runtime_t *,
131  struct vlib_frame_t * f);
132 
133  /* Per-node runtime data. */
134  void *runtime_data;
135 
136  /* Process stack size. */
137  u16 process_log2_n_stack_bytes;
138 
139  /* Number of bytes of per-node run time data. */
140  u8 runtime_data_bytes;
141 
142  /* State for input nodes. */
143  u8 state;
144 
145  /* Node flags. */
146  u16 flags;
147 
148  /* protocol at b->data[b->current_data] upon entry to the dispatch fn */
149  u8 protocol_hint;
150 
151  /* Size of scalar and vector arguments in bytes. */
153 
154  /* Number of error codes used by this node. */
155  u16 n_errors;
156 
157  /* Number of next node names that follow. */
158  u16 n_next_nodes;
159 
160  /* Constructor link-list, don't ask... */
161  struct _vlib_node_registration *next_registration;
162 
163  /* Names of next nodes which this node feeds into. */
164  char *next_nodes[];
165 
167 
168 #ifndef CLIB_MARCH_VARIANT
169 #define VLIB_REGISTER_NODE(x,...) \
170  __VA_ARGS__ vlib_node_registration_t x; \
171 static void __vlib_add_node_registration_##x (void) \
172  __attribute__((__constructor__)) ; \
173 static void __vlib_add_node_registration_##x (void) \
174 { \
175  vlib_main_t * vm = vlib_get_main(); \
176  x.next_registration = vm->node_main.node_registrations; \
177  vm->node_main.node_registrations = &x; \
178 } \
179 static void __vlib_rm_node_registration_##x (void) \
180  __attribute__((__destructor__)) ; \
181 static void __vlib_rm_node_registration_##x (void) \
182 { \
183  vlib_main_t * vm = vlib_get_main(); \
184  VLIB_REMOVE_FROM_LINKED_LIST (vm->node_main.node_registrations, \
185  &x, next_registration); \
186 } \
187 __VA_ARGS__ vlib_node_registration_t x
188 #else
189 #define VLIB_REGISTER_NODE(x,...) \
190 STATIC_ASSERT (sizeof(# __VA_ARGS__) != 7,"node " #x " must not be declared as static"); \
191 static __clib_unused vlib_node_registration_t __clib_unused_##x
192 #endif
193 
194 #ifndef CLIB_MARCH_VARIANT
195 #define CLIB_MARCH_VARIANT_STR "default"
196 #else
197 #define _CLIB_MARCH_VARIANT_STR(s) __CLIB_MARCH_VARIANT_STR(s)
198 #define __CLIB_MARCH_VARIANT_STR(s) #s
199 #define CLIB_MARCH_VARIANT_STR _CLIB_MARCH_VARIANT_STR(CLIB_MARCH_VARIANT)
200 #endif
201 
202 #define VLIB_NODE_FN(node) \
203 uword CLIB_MARCH_SFX (node##_fn)(); \
204 static vlib_node_fn_registration_t \
205  CLIB_MARCH_SFX(node##_fn_registration) = \
206  { .function = &CLIB_MARCH_SFX (node##_fn), }; \
207  \
208 static void __clib_constructor \
209 CLIB_MARCH_SFX (node##_multiarch_register) (void) \
210 { \
211  extern vlib_node_registration_t node; \
212  vlib_node_fn_registration_t *r; \
213  r = & CLIB_MARCH_SFX (node##_fn_registration); \
214  r->priority = CLIB_MARCH_FN_PRIORITY(); \
215  r->name = CLIB_MARCH_VARIANT_STR; \
216  r->next_registration = node.node_fn_registrations; \
217  node.node_fn_registrations = r; \
218 } \
219 uword CLIB_CPU_OPTIMIZED CLIB_MARCH_SFX (node##_fn)
220 
222 
225 {
226  c =
228  c->n_next_nodes * sizeof (c->next_nodes[0]));
229  return c;
230 }
231 
232 typedef struct
233 {
234  /* Total calls, clock ticks and vector elements processed for this node. */
235  u64 calls, vectors, clocks, suspends;
242 
243 #define foreach_vlib_node_state \
244  /* Input node is called each iteration of main loop. \
245  This is the default (zero). */ \
246  _ (POLLING) \
247  /* Input node is called when device signals an interrupt. */ \
248  _ (INTERRUPT) \
249  /* Input node is never called. */ \
250  _ (DISABLED)
251 
252 typedef enum
253 {
254 #define _(f) VLIB_NODE_STATE_##f,
256 #undef _
259 
260 typedef struct vlib_node_t
261 {
262  /* Vector processing function for this node. */
264 
265  /* Node name. */
267 
268  /* Node name index in elog string table. */
270 
271  /* Total statistics for this node. */
273 
274  /* Saved values as of last clear (or zero if never cleared).
275  Current values are always stats_total - stats_last_clear. */
277 
278  /* Type of this node. */
279  vlib_node_type_t type;
280 
281  /* Node index. */
283 
284  /* Index of corresponding node runtime. */
286 
287  /* Runtime data for this node. */
289 
290  /* Node flags. */
292 
293  /* Processing function keeps frame. Tells node dispatching code not
294  to free frame after dispatch is done. */
295 #define VLIB_NODE_FLAG_FRAME_NO_FREE_AFTER_DISPATCH (1 << 0)
296 
297  /* Node counts as output/drop/punt node for stats purposes. */
298 #define VLIB_NODE_FLAG_IS_OUTPUT (1 << 1)
299 #define VLIB_NODE_FLAG_IS_DROP (1 << 2)
300 #define VLIB_NODE_FLAG_IS_PUNT (1 << 3)
301 #define VLIB_NODE_FLAG_IS_HANDOFF (1 << 4)
302 
303  /* Set if current node runtime has traced vectors. */
304 #define VLIB_NODE_FLAG_TRACE (1 << 5)
305 
306 #define VLIB_NODE_FLAG_SWITCH_FROM_INTERRUPT_TO_POLLING_MODE (1 << 6)
307 #define VLIB_NODE_FLAG_SWITCH_FROM_POLLING_TO_INTERRUPT_MODE (1 << 7)
308 #define VLIB_NODE_FLAG_TRACE_SUPPORTED (1 << 8)
309 
310  /* State for input nodes. */
312 
313  /* Number of bytes of run time data. */
315 
316  /* protocol at b->data[b->current_data] upon entry to the dispatch fn */
318 
319  /* Number of error codes used by this node. */
321 
322  /* Size of scalar and vector arguments in bytes. */
323  u16 scalar_size, vector_size;
324 
325  /* Handle/index in error heap for this node. */
328 
329  /* Error strings indexed by error code for this node. */
331 
332  /* Vector of next node names.
333  Only used before next_nodes array is initialized. */
335 
336  /* Next node indices for this node. */
338 
339  /* Name of node that we are sibling of. */
340  char *sibling_of;
341 
342  /* Bitmap of all of this node's siblings. */
344 
345  /* Total number of vectors sent to each next node. */
347 
348  /* Hash table mapping next node index into slot in
349  next_nodes vector. Quickly determines whether this node
350  is connected to given next node and, if so, with which slot. */
352 
353  /* Bitmap of node indices which feed this node. */
355 
356  /* Node/next-index which own enqueue rights with to this node. */
357  u32 owner_node_index, owner_next_index;
358 
359  /* Buffer format/unformat for this node. */
362 
363  /* Trace buffer format/unformat for this node. */
365 
366  /* Function to validate incoming frames. */
367  u8 *(*validate_frame) (struct vlib_main_t * vm,
368  struct vlib_node_runtime_t *,
369  struct vlib_frame_t * f);
370  /* for pretty-printing, not typically valid */
372 
373  /* Node function candidate registration with priority */
375 } vlib_node_t;
376 
377 #define VLIB_INVALID_NODE_INDEX ((u32) ~0)
378 
379 /* Max number of vector elements to process at once per node. */
380 #define VLIB_FRAME_SIZE 256
381 #define VLIB_FRAME_ALIGN CLIB_CACHE_LINE_BYTES
382 
383 /* Calling frame (think stack frame) for a node. */
384 typedef struct vlib_frame_t
385 {
386  /* Frame flags. */
388 
389  /* User flags. Used for sending hints to the next node. */
391 
392  /* Number of scalar bytes in arguments. */
394 
395  /* Number of bytes per vector argument. */
397 
398  /* Number of vector elements currently in frame. */
400 
401  /* Scalar and vector arguments to next node. */
402  u8 arguments[0];
403 } vlib_frame_t;
404 
405 typedef struct
406 {
407  /* Frame pointer. */
409 
410  /* Node runtime for this next. */
412 
413  /* Next frame flags. */
415 
416  /* Reflects node frame-used flag for this next. */
417 #define VLIB_FRAME_NO_FREE_AFTER_DISPATCH \
418  VLIB_NODE_FLAG_FRAME_NO_FREE_AFTER_DISPATCH
419 
420  /* Don't append this frame */
421 #define VLIB_FRAME_NO_APPEND (1 << 14)
422 
423  /* This next frame owns enqueue to node
424  corresponding to node_runtime_index. */
425 #define VLIB_FRAME_OWNER (1 << 15)
426 
427  /* Set when frame has been allocated for this next. */
428 #define VLIB_FRAME_IS_ALLOCATED VLIB_NODE_FLAG_IS_OUTPUT
429 
430  /* Set when frame has been added to pending vector. */
431 #define VLIB_FRAME_PENDING VLIB_NODE_FLAG_IS_DROP
432 
433  /* Set when frame is to be freed after dispatch. */
434 #define VLIB_FRAME_FREE_AFTER_DISPATCH VLIB_NODE_FLAG_IS_PUNT
435 
436  /* Set when frame has traced packets. */
437 #define VLIB_FRAME_TRACE VLIB_NODE_FLAG_TRACE
438 
439  /* Number of vectors enqueue to this next since last overflow. */
442 
443 always_inline void
445 {
446  clib_memset (nf, 0, sizeof (nf[0]));
447  nf->node_runtime_index = ~0;
448 }
449 
450 /* A frame pending dispatch by main loop. */
451 typedef struct
452 {
453  /* Node and runtime for this frame. */
455 
456  /* Frame index (in the heap). */
458 
459  /* Start of next frames for this node. */
461 
462  /* Special value for next_frame_index when there is no next frame. */
463 #define VLIB_PENDING_FRAME_NO_NEXT_FRAME ((u32) ~0)
465 
466 typedef struct vlib_node_runtime_t
467 {
468  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0); /**< cacheline mark */
469 
470  vlib_node_function_t *function; /**< Node function to call. */
471 
472  vlib_error_t *errors; /**< Vector of errors for this node. */
473 
474 #if __SIZEOF_POINTER__ == 4
475  u8 pad[8];
476 #endif
477 
478  u32 clocks_since_last_overflow; /**< Number of clock cycles. */
479 
480  u32 max_clock; /**< Maximum clock cycle for an
481  invocation. */
482 
483  u32 max_clock_n; /**< Number of vectors in the recorded
484  max_clock. */
485 
486  u32 calls_since_last_overflow; /**< Number of calls. */
487 
488  u32 vectors_since_last_overflow; /**< Number of vector elements
489  processed by this node. */
490 
491  u32 perf_counter0_ticks_since_last_overflow; /**< Perf counter 0 ticks */
492  u32 perf_counter1_ticks_since_last_overflow; /**< Perf counter 1 ticks */
493  u32 perf_counter_vectors_since_last_overflow; /**< Perf counter vectors */
494 
495  u32 next_frame_index; /**< Start of next frames for this
496  node. */
497 
498  u32 node_index; /**< Node index. */
499 
500  u32 input_main_loops_per_call; /**< For input nodes: decremented
501  on each main loop interation until
502  it reaches zero and function is
503  called. Allows some input nodes to
504  be called more than others. */
505 
506  u32 main_loop_count_last_dispatch; /**< Saved main loop counter of last
507  dispatch of this node. */
508 
509  u32 main_loop_vector_stats[2];
510 
511  u16 flags; /**< Copy of main node flags. */
512 
513  u16 state; /**< Input node state. */
514 
516 
517  u16 cached_next_index; /**< Next frame index that vector
518  arguments were last enqueued to
519  last time this node ran. Set to
520  zero before first run of this
521  node. */
522 
523  u16 thread_index; /**< thread this node runs on */
524 
525  u8 runtime_data[0]; /**< Function dependent
526  node-runtime data. This data is
527  thread local, and it is not
528  cloned from main thread. It needs
529  to be initialized for each thread
530  before it is used unless
531  runtime_data template exists in
532  vlib_node_t. */
533 }
535 
536 #define VLIB_NODE_RUNTIME_DATA_SIZE (sizeof (vlib_node_runtime_t) - STRUCT_OFFSET_OF (vlib_node_runtime_t, runtime_data))
537 
538 typedef struct
539 {
540  /* Number of allocated frames for this scalar/vector size. */
542 
543  /* Vector of free frames for this scalar/vector size. */
546 
547 typedef struct
548 {
549  /* Users opaque value for event type. */
552 
553 typedef struct
554 {
555  /* Node runtime for this process. */
557 
558  /* Where to longjmp when process is done. */
560 
561 #define VLIB_PROCESS_RETURN_LONGJMP_RETURN ((uword) ~0 - 0)
562 #define VLIB_PROCESS_RETURN_LONGJMP_SUSPEND ((uword) ~0 - 1)
563 
564  /* Where to longjmp to resume node after suspend. */
566 #define VLIB_PROCESS_RESUME_LONGJMP_SUSPEND 0
567 #define VLIB_PROCESS_RESUME_LONGJMP_RESUME 1
568 
570 #define VLIB_PROCESS_IS_SUSPENDED_WAITING_FOR_CLOCK (1 << 0)
571 #define VLIB_PROCESS_IS_SUSPENDED_WAITING_FOR_EVENT (1 << 1)
572  /* Set to indicate that this process has been added to resume vector. */
573 #define VLIB_PROCESS_RESUME_PENDING (1 << 2)
574 
575  /* Process function is currently running. */
576 #define VLIB_PROCESS_IS_RUNNING (1 << 3)
577 
578  /* Size of process stack. */
580 
582 
583  /* Number of times this process was suspended. */
585 
586  /* Vectors of pending event data indexed by event type index. */
588 
589  /* Bitmap of event type-indices with non-empty vectors. */
591 
592  /* Bitmap of event type-indices which are one time events. */
594 
595  /* Type is opaque pointer -- typically a pointer to an event handler
596  function. Hash table to map opaque to a type index. */
598 
599  /* Pool of currently valid event types. */
601 
602  /*
603  * When suspending saves clock time (10us ticks) when process
604  * is to be resumed.
605  */
607 
608  /* Handle from timer code, to cancel an unexpired timer */
610 
611  /* Default output function and its argument for any CLI outputs
612  within the process. */
615 
616 #ifdef CLIB_UNIX
617  /* Pad to a multiple of the page size so we can mprotect process stacks */
618 #define PAGE_SIZE_MULTIPLE 0x1000
619 #define ALIGN_ON_MULTIPLE_PAGE_BOUNDARY_FOR_MPROTECT __attribute__ ((aligned (PAGE_SIZE_MULTIPLE)))
620 #else
621 #define ALIGN_ON_MULTIPLE_PAGE_BOUNDARY_FOR_MPROTECT
622 #endif
623 
624  /* Process stack. Starts here and extends 2^log2_n_stack_bytes
625  bytes. */
626 
627 #define VLIB_PROCESS_STACK_MAGIC (0xdead7ead)
629 } vlib_process_t __attribute__ ((aligned (CLIB_CACHE_LINE_BYTES)));
630 
631 #ifdef CLIB_UNIX
632  /* Ensure that the stack is aligned on the multiple of the page size */
633 typedef char
636  -
638  ==
639  0 ? 0 :
640  -1];
641 #endif
642 
643 typedef struct
644 {
646 
649 
650 typedef struct
651 {
653 
655 
656  /* n_data_elts * n_data_elt_bytes */
658 
659  /* Process node & event type to be used to signal event. */
661 
663 
664  union
665  {
666  u8 inline_event_data[64 - 3 * sizeof (u32) - 2 * sizeof (u16)];
667 
668  /* Vector of event data used only when data does not fit inline. */
670  };
671 }
673 
676 {
677  return d & 1;
678 }
679 
682 {
683  return 0 + 2 * i;
684 }
685 
688 {
689  return 1 + 2 * i;
690 }
691 
694 {
695  return d / 2;
696 }
697 
698 typedef struct
699 {
700  /* Public nodes. */
702 
703  /* Node index hashed by node name. */
705 
707 #define VLIB_NODE_MAIN_RUNTIME_STARTED (1 << 0)
708 
709  /* Nodes segregated by type for cache locality.
710  Does not apply to nodes of type VLIB_NODE_TYPE_INTERNAL. */
712 
713  /* Node runtime indices for input nodes with pending interrupts. */
716 
717  /* Input nodes are switched from/to interrupt to/from polling mode
718  when average vector length goes above/below polling/interrupt
719  thresholds. */
722 
723  /* Vector of next frames. */
725 
726  /* Vector of internal node's frames waiting to be called. */
728 
729  /* Timing wheel for scheduling time-based node dispatch. */
731 
733 
734  /* Opaque data vector added via timing_wheel_advance. */
736 
737  /* CPU time of next process to be ready on timing wheel. */
739 
740  /* Vector of process nodes.
741  One for each node of type VLIB_NODE_TYPE_PROCESS. */
743 
744  /* Current running process or ~0 if no process running. */
746 
747  /* Pool of pending process frames. */
749 
750  /* Vector of event data vectors pending recycle. */
752 
753  /* Current counts of nodes in each state. */
754  u32 input_node_counts_by_state[VLIB_N_NODE_STATE];
755 
756  /* Hash of (scalar_size,vector_size) to frame_sizes index. */
758 
759  /* Per-size frame allocation information. */
761 
762  /* Time of last node runtime stats clear. */
764 
765  /* Node registrations added by constructors */
767 
768  /* Node index from error code */
771 
773 
775 vlib_error_get_node (vlib_node_main_t * nm, vlib_error_t e)
776 {
777  return nm->node_by_error[e];
778 }
779 
781 vlib_error_get_code (vlib_node_main_t * nm, vlib_error_t e)
782 {
783  u32 node_index = nm->node_by_error[e];
784  vlib_node_t *n = nm->nodes[node_index];
785  u32 error_code = e - n->error_heap_index;
786  return error_code;
787 }
788 
789 #define FRAME_QUEUE_MAX_NELTS 64
790 typedef struct
791 {
792  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
802 
803 typedef struct
804 {
807 
808 #endif /* included_vlib_node_h */
809 
810 /*
811  * fd.io coding-style-patch-verification: ON
812  *
813  * Local Variables:
814  * eval: (c-set-style "gnu")
815  * End:
816  */
uword * sibling_bitmap
Definition: node.h:343
u32 * next_nodes
Definition: node.h:337
u8 count
Definition: dhcp.api:208
uword output_function_arg
Definition: node.h:614
u8 * state_string
Definition: node.h:371
u16 vector_size
Definition: node.h:323
u32 error_heap_index
Definition: node.h:327
u32 max_clock
Maximum clock cycle for an invocation.
Definition: node.h:480
u32 next_frame_index
Start of next frames for this node.
Definition: node.h:495
u8 pad[3]
log2 (size of the packing page block)
Definition: bihash_doc.h:61
#define CLIB_CACHE_LINE_ALIGN_MARK(mark)
Definition: cache.h:60
vlib_node_type_t
Definition: node.h:69
u32 interrupt_threshold_vector_length
Definition: node.h:721
vlib_process_t ** processes
Definition: node.h:742
vlib_node_runtime_t node_runtime
Definition: node.h:556
u32 n_suspends
Definition: node.h:584
unsigned long u64
Definition: types.h:89
clib_memset(h->entries, 0, sizeof(h->entries[0]) *entries)
u32 index
Definition: node.h:282
format_function_t * format_trace
Definition: node.h:364
void ** pending_event_data_by_type_index
Definition: node.h:587
u32 current_process_index
Definition: node.h:745
u16 flags
Definition: node.h:291
char ** error_strings
Definition: node.h:330
u32 clocks_since_last_overflow
Number of clock cycles.
Definition: node.h:478
#define PAGE_SIZE_MULTIPLE
Definition: node.h:618
clib_spinlock_t pending_interrupt_lock
Definition: node.h:715
void * runtime_data
Definition: node.h:288
vlib_error_t * errors
Vector of errors for this node.
Definition: node.h:472
struct vlib_frame_t vlib_frame_t
static vlib_node_registration_t * vlib_node_next_registered(vlib_node_registration_t *c)
Definition: node.h:224
unsigned char u8
Definition: types.h:56
u64 perf_counter0_ticks
Definition: node.h:238
double f64
Definition: types.h:142
u16 thread_index
thread this node runs on
Definition: node.h:523
u8 state
Definition: node.h:311
u8 *() format_function_t(u8 *s, va_list *args)
Definition: format.h:48
u32 * pending_interrupt_node_runtime_indices
Definition: node.h:714
u32 input_main_loops_per_call
For input nodes: decremented on each main loop interation until it reaches zero and function is calle...
Definition: node.h:500
vlib_node_stats_t stats_last_clear
Definition: node.h:276
u32 main_loop_count_last_dispatch
Saved main loop counter of last dispatch of this node.
Definition: node.h:506
void ** recycled_event_data_vectors
Definition: node.h:751
u16 log2_n_stack_bytes
Definition: node.h:579
vlib_node_t ** nodes
Definition: node.h:701
u32 vectors_since_last_overflow
Number of vector elements processed by this node.
Definition: node.h:488
char ** next_node_names
Definition: node.h:334
char * sibling_of
Definition: node.h:340
u64 perf_counter_vectors
Definition: node.h:240
u16 vlib_error_t
Definition: node.h:772
static uword vlib_timing_wheel_data_is_timed_event(u32 d)
Definition: node.h:675
struct _vlib_node_fn_registration vlib_node_fn_registration_t
unsigned int u32
Definition: types.h:88
u32 perf_counter0_ticks_since_last_overflow
Perf counter 0 ticks.
Definition: node.h:491
i32 priority
Definition: ipsec.api:94
unformat_function_t unformat_vlib_node_variant
Definition: node.h:221
u64 max_clock_n
Definition: node.h:237
char assert_process_stack_must_be_aligned_exactly_to_page_size_multiple[(sizeof(vlib_process_t) - PAGE_SIZE_MULTIPLE)==0 ? 0 :-1]
Definition: node.h:640
vl_api_fib_path_type_t type
Definition: fib_types.api:123
u32 calls_since_last_overflow
Number of calls.
Definition: node.h:486
u32 next_frame_index
Definition: node.h:460
u32 error_heap_handle
Definition: node.h:326
vlib_node_stats_t stats_total
Definition: node.h:272
vlib_node_proto_hint_t
Definition: node.h:58
u16 state
Input node state.
Definition: node.h:513
vlib_signal_timed_event_data_t * signal_timed_event_data_pool
Definition: node.h:732
static void vlib_next_frame_init(vlib_next_frame_t *nf)
Definition: node.h:444
u16 frame_flags
Definition: node.h:387
f64 time_last_runtime_stats_clear
Definition: node.h:763
unsigned short u16
Definition: types.h:57
vlib_node_registration_t * node_registrations
Definition: node.h:766
u32 n_alloc_frames
Definition: node.h:541
static uword vlib_timing_wheel_data_get_index(u32 d)
Definition: node.h:693
u32 * node_by_error
Definition: node.h:769
u32 polling_threshold_vector_length
Definition: node.h:720
u64 * n_vectors_by_next_node
Definition: node.h:346
#define always_inline
Definition: ipsec.h:28
format_function_t * format_buffer
Definition: node.h:360
u8 protocol_hint
Definition: node.h:317
vlib_frame_t * frame
Definition: node.h:457
u32 node_index
Node index.
Definition: node.h:498
uword() unformat_function_t(unformat_input_t *input, va_list *args)
Definition: format.h:233
uword * frame_size_hash
Definition: node.h:757
vlib_main_t * vm
Definition: in2out_ed.c:1599
static u32 vlib_error_get_code(vlib_node_main_t *nm, vlib_error_t e)
Definition: node.h:781
u8 * name
Definition: node.h:266
u32 owner_node_index
Definition: node.h:357
u32 flags
Definition: vhost_user.h:248
svmdb_client_t * c
u16 n_vectors
Definition: node.h:399
u32 runtime_index
Definition: node.h:285
vlib_pending_frame_t * pending_frames
Definition: node.h:727
u32 node_runtime_index
Definition: node.h:454
sll srl srl sll sra u16x4 i
Definition: vector_sse42.h:317
unformat_function_t * unformat_buffer
Definition: node.h:361
u32 perf_counter_vectors_since_last_overflow
Perf counter vectors.
Definition: node.h:493
uword * node_by_name
Definition: node.h:704
u32 stack [0] ALIGN_ON_MULTIPLE_PAGE_BOUNDARY_FOR_MPROTECT
Definition: node.h:628
vlib_frame_t ** free_frames
Definition: node.h:544
vlib_node_fn_registration_t * node_fn_registrations
Definition: node.h:374
string name[64]
Definition: ip.api:44
vlib_main_t vlib_node_runtime_t * node
Definition: in2out_ed.c:1599
uword * one_time_event_type_bitmap
Definition: node.h:593
signed int i32
Definition: types.h:77
#define clib_elf_section_data_next(a, extra)
Definition: elf_clib.h:57
u16 cached_next_index
Next frame index that vector arguments were last enqueued to last time this node ran.
Definition: node.h:517
u64 perf_counter1_ticks
Definition: node.h:239
struct vlib_node_runtime_t vlib_node_runtime_t
vlib_frame_t * frame
Definition: node.h:408
uword() vlib_node_function_t(struct vlib_main_t *vm, struct vlib_node_runtime_t *node, struct vlib_frame_t *frame)
Definition: node.h:54
u16 flags
Definition: node.h:390
uword * next_slot_by_node
Definition: node.h:351
uword * prev_node_bitmap
Definition: node.h:354
#define foreach_vlib_node_state
Definition: node.h:243
static u32 vlib_error_get_node(vlib_node_main_t *nm, vlib_error_t e)
Definition: node.h:775
struct _vlib_node_registration vlib_node_registration_t
vlib_process_event_type_t * event_type_pool
Definition: node.h:600
u32 * data_from_advancing_timing_wheel
Definition: node.h:735
u32 perf_counter1_ticks_since_last_overflow
Perf counter 1 ticks.
Definition: node.h:492
vlib_pending_frame_t * suspended_process_frames
Definition: node.h:748
u64 uword
Definition: types.h:112
u8 vector_size
Definition: node.h:396
vlib_next_frame_t * next_frames
Definition: node.h:724
static u32 vlib_timing_wheel_data_set_timed_event(u32 i)
Definition: node.h:687
u32 stop_timer_handle
Definition: node.h:609
uword * event_type_index_by_type_opaque
Definition: node.h:597
vlib_frame_size_t * frame_sizes
Definition: node.h:760
u64 resume_clock_interval
Definition: node.h:606
u16 flags
Definition: node.h:569
vlib_node_type_t type
Definition: node.h:279
u32 name_elog_string
Definition: node.h:269
vlib_node_state_t
Definition: node.h:252
u16 n_errors
Definition: node.h:320
u32 suspended_process_frame_index
Definition: node.h:581
vl_api_dhcp_client_state_t state
Definition: dhcp.api:201
vlib_main_t vlib_node_runtime_t vlib_frame_t * frame
Definition: in2out_ed.c:1600
clib_longjmp_t return_longjmp
Definition: node.h:559
u16 flags
Copy of main node flags.
Definition: node.h:511
u32 node_runtime_index
Definition: node.h:411
u8 scalar_size
Definition: node.h:393
void() vlib_cli_output_function_t(uword arg, u8 *buffer, uword buffer_bytes)
Definition: cli.h:133
vlib_cli_output_function_t * output_function
Definition: node.h:613
clib_longjmp_t resume_longjmp
Definition: node.h:565
#define CLIB_CACHE_LINE_BYTES
Definition: cache.h:59
static u32 vlib_timing_wheel_data_set_suspended_process(u32 i)
Definition: node.h:681
void * timing_wheel
Definition: node.h:730
u8 runtime_data_bytes
Definition: node.h:314
#define FRAME_QUEUE_MAX_NELTS
Definition: node.h:789
f64 time_next_process_ready
Definition: node.h:738
struct vlib_node_t vlib_node_t
u32 vectors_since_last_overflow
Definition: node.h:440
u32 max_clock_n
Number of vectors in the recorded max_clock.
Definition: node.h:483
uword * non_empty_event_type_bitmap
Definition: node.h:590