FD.io VPP  v19.04.4-rc0-5-ge88582fac
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 __clib_unused vlib_node_registration_t __clib_unused_##x
191 #endif
192 
193 #ifndef CLIB_MARCH_VARIANT
194 #define CLIB_MARCH_VARIANT_STR "default"
195 #else
196 #define _CLIB_MARCH_VARIANT_STR(s) __CLIB_MARCH_VARIANT_STR(s)
197 #define __CLIB_MARCH_VARIANT_STR(s) #s
198 #define CLIB_MARCH_VARIANT_STR _CLIB_MARCH_VARIANT_STR(CLIB_MARCH_VARIANT)
199 #endif
200 
201 #define VLIB_NODE_FN(node) \
202 uword CLIB_MARCH_SFX (node##_fn)(); \
203 static vlib_node_fn_registration_t \
204  CLIB_MARCH_SFX(node##_fn_registration) = \
205  { .function = &CLIB_MARCH_SFX (node##_fn), }; \
206  \
207 static void __clib_constructor \
208 CLIB_MARCH_SFX (node##_multiarch_register) (void) \
209 { \
210  extern vlib_node_registration_t node; \
211  vlib_node_fn_registration_t *r; \
212  r = & CLIB_MARCH_SFX (node##_fn_registration); \
213  r->priority = CLIB_MARCH_FN_PRIORITY(); \
214  r->name = CLIB_MARCH_VARIANT_STR; \
215  r->next_registration = node.node_fn_registrations; \
216  node.node_fn_registrations = r; \
217 } \
218 uword CLIB_CPU_OPTIMIZED CLIB_MARCH_SFX (node##_fn)
219 
222 {
223  c =
225  c->n_next_nodes * sizeof (c->next_nodes[0]));
226  return c;
227 }
228 
229 typedef struct
230 {
231  /* Total calls, clock ticks and vector elements processed for this node. */
232  u64 calls, vectors, clocks, suspends;
239 
240 #define foreach_vlib_node_state \
241  /* Input node is called each iteration of main loop. \
242  This is the default (zero). */ \
243  _ (POLLING) \
244  /* Input node is called when device signals an interrupt. */ \
245  _ (INTERRUPT) \
246  /* Input node is never called. */ \
247  _ (DISABLED)
248 
249 typedef enum
250 {
251 #define _(f) VLIB_NODE_STATE_##f,
253 #undef _
256 
257 typedef struct vlib_node_t
258 {
259  /* Vector processing function for this node. */
261 
262  /* Node name. */
264 
265  /* Node name index in elog string table. */
267 
268  /* Total statistics for this node. */
270 
271  /* Saved values as of last clear (or zero if never cleared).
272  Current values are always stats_total - stats_last_clear. */
274 
275  /* Type of this node. */
276  vlib_node_type_t type;
277 
278  /* Node index. */
280 
281  /* Index of corresponding node runtime. */
283 
284  /* Runtime data for this node. */
286 
287  /* Node flags. */
289 
290  /* Processing function keeps frame. Tells node dispatching code not
291  to free frame after dispatch is done. */
292 #define VLIB_NODE_FLAG_FRAME_NO_FREE_AFTER_DISPATCH (1 << 0)
293 
294  /* Node counts as output/drop/punt node for stats purposes. */
295 #define VLIB_NODE_FLAG_IS_OUTPUT (1 << 1)
296 #define VLIB_NODE_FLAG_IS_DROP (1 << 2)
297 #define VLIB_NODE_FLAG_IS_PUNT (1 << 3)
298 #define VLIB_NODE_FLAG_IS_HANDOFF (1 << 4)
299 
300  /* Set if current node runtime has traced vectors. */
301 #define VLIB_NODE_FLAG_TRACE (1 << 5)
302 
303 #define VLIB_NODE_FLAG_SWITCH_FROM_INTERRUPT_TO_POLLING_MODE (1 << 6)
304 #define VLIB_NODE_FLAG_SWITCH_FROM_POLLING_TO_INTERRUPT_MODE (1 << 7)
305 
306  /* State for input nodes. */
308 
309  /* Number of bytes of run time data. */
311 
312  /* protocol at b->data[b->current_data] upon entry to the dispatch fn */
314 
315  /* Number of error codes used by this node. */
317 
318  /* Size of scalar and vector arguments in bytes. */
319  u16 scalar_size, vector_size;
320 
321  /* Handle/index in error heap for this node. */
324 
325  /* Error strings indexed by error code for this node. */
327 
328  /* Vector of next node names.
329  Only used before next_nodes array is initialized. */
331 
332  /* Next node indices for this node. */
334 
335  /* Name of node that we are sibling of. */
336  char *sibling_of;
337 
338  /* Bitmap of all of this node's siblings. */
340 
341  /* Total number of vectors sent to each next node. */
343 
344  /* Hash table mapping next node index into slot in
345  next_nodes vector. Quickly determines whether this node
346  is connected to given next node and, if so, with which slot. */
348 
349  /* Bitmap of node indices which feed this node. */
351 
352  /* Node/next-index which own enqueue rights with to this node. */
353  u32 owner_node_index, owner_next_index;
354 
355  /* Buffer format/unformat for this node. */
358 
359  /* Trace buffer format/unformat for this node. */
361 
362  /* Function to validate incoming frames. */
363  u8 *(*validate_frame) (struct vlib_main_t * vm,
364  struct vlib_node_runtime_t *,
365  struct vlib_frame_t * f);
366  /* for pretty-printing, not typically valid */
368 
369  /* Node function candidate registration with priority */
371 } vlib_node_t;
372 
373 #define VLIB_INVALID_NODE_INDEX ((u32) ~0)
374 
375 /* Max number of vector elements to process at once per node. */
376 #define VLIB_FRAME_SIZE 256
377 #define VLIB_FRAME_ALIGN CLIB_CACHE_LINE_BYTES
378 
379 /* Calling frame (think stack frame) for a node. */
380 typedef struct vlib_frame_t
381 {
382  /* Frame flags. */
384 
385  /* User flags. Used for sending hints to the next node. */
387 
388  /* Number of scalar bytes in arguments. */
390 
391  /* Number of bytes per vector argument. */
393 
394  /* Number of vector elements currently in frame. */
396 
397  /* Scalar and vector arguments to next node. */
398  u8 arguments[0];
399 } vlib_frame_t;
400 
401 typedef struct
402 {
403  /* Frame pointer. */
405 
406  /* Node runtime for this next. */
408 
409  /* Next frame flags. */
411 
412  /* Reflects node frame-used flag for this next. */
413 #define VLIB_FRAME_NO_FREE_AFTER_DISPATCH \
414  VLIB_NODE_FLAG_FRAME_NO_FREE_AFTER_DISPATCH
415 
416  /* Don't append this frame */
417 #define VLIB_FRAME_NO_APPEND (1 << 14)
418 
419  /* This next frame owns enqueue to node
420  corresponding to node_runtime_index. */
421 #define VLIB_FRAME_OWNER (1 << 15)
422 
423  /* Set when frame has been allocated for this next. */
424 #define VLIB_FRAME_IS_ALLOCATED VLIB_NODE_FLAG_IS_OUTPUT
425 
426  /* Set when frame has been added to pending vector. */
427 #define VLIB_FRAME_PENDING VLIB_NODE_FLAG_IS_DROP
428 
429  /* Set when frame is to be freed after dispatch. */
430 #define VLIB_FRAME_FREE_AFTER_DISPATCH VLIB_NODE_FLAG_IS_PUNT
431 
432  /* Set when frame has traced packets. */
433 #define VLIB_FRAME_TRACE VLIB_NODE_FLAG_TRACE
434 
435  /* Number of vectors enqueue to this next since last overflow. */
438 
439 always_inline void
441 {
442  clib_memset (nf, 0, sizeof (nf[0]));
443  nf->node_runtime_index = ~0;
444 }
445 
446 /* A frame pending dispatch by main loop. */
447 typedef struct
448 {
449  /* Node and runtime for this frame. */
451 
452  /* Frame index (in the heap). */
454 
455  /* Start of next frames for this node. */
457 
458  /* Special value for next_frame_index when there is no next frame. */
459 #define VLIB_PENDING_FRAME_NO_NEXT_FRAME ((u32) ~0)
461 
462 typedef struct vlib_node_runtime_t
463 {
464  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0); /**< cacheline mark */
465 
466  vlib_node_function_t *function; /**< Node function to call. */
467 
468  vlib_error_t *errors; /**< Vector of errors for this node. */
469 
470 #if __SIZEOF_POINTER__ == 4
471  u8 pad[8];
472 #endif
473 
474  u32 clocks_since_last_overflow; /**< Number of clock cycles. */
475 
476  u32 max_clock; /**< Maximum clock cycle for an
477  invocation. */
478 
479  u32 max_clock_n; /**< Number of vectors in the recorded
480  max_clock. */
481 
482  u32 calls_since_last_overflow; /**< Number of calls. */
483 
484  u32 vectors_since_last_overflow; /**< Number of vector elements
485  processed by this node. */
486 
487  u32 perf_counter0_ticks_since_last_overflow; /**< Perf counter 0 ticks */
488  u32 perf_counter1_ticks_since_last_overflow; /**< Perf counter 1 ticks */
489  u32 perf_counter_vectors_since_last_overflow; /**< Perf counter vectors */
490 
491  u32 next_frame_index; /**< Start of next frames for this
492  node. */
493 
494  u32 node_index; /**< Node index. */
495 
496  u32 input_main_loops_per_call; /**< For input nodes: decremented
497  on each main loop interation until
498  it reaches zero and function is
499  called. Allows some input nodes to
500  be called more than others. */
501 
502  u32 main_loop_count_last_dispatch; /**< Saved main loop counter of last
503  dispatch of this node. */
504 
505  u32 main_loop_vector_stats[2];
506 
507  u16 flags; /**< Copy of main node flags. */
508 
509  u16 state; /**< Input node state. */
510 
512 
513  u16 cached_next_index; /**< Next frame index that vector
514  arguments were last enqueued to
515  last time this node ran. Set to
516  zero before first run of this
517  node. */
518 
519  u16 thread_index; /**< thread this node runs on */
520 
521  u8 runtime_data[0]; /**< Function dependent
522  node-runtime data. This data is
523  thread local, and it is not
524  cloned from main thread. It needs
525  to be initialized for each thread
526  before it is used unless
527  runtime_data template exists in
528  vlib_node_t. */
529 }
531 
532 #define VLIB_NODE_RUNTIME_DATA_SIZE (sizeof (vlib_node_runtime_t) - STRUCT_OFFSET_OF (vlib_node_runtime_t, runtime_data))
533 
534 typedef struct
535 {
536  /* Number of allocated frames for this scalar/vector size. */
538 
539  /* Vector of free frames for this scalar/vector size. */
542 
543 typedef struct
544 {
545  /* Users opaque value for event type. */
548 
549 typedef struct
550 {
551  /* Node runtime for this process. */
553 
554  /* Where to longjmp when process is done. */
556 
557 #define VLIB_PROCESS_RETURN_LONGJMP_RETURN ((uword) ~0 - 0)
558 #define VLIB_PROCESS_RETURN_LONGJMP_SUSPEND ((uword) ~0 - 1)
559 
560  /* Where to longjmp to resume node after suspend. */
562 #define VLIB_PROCESS_RESUME_LONGJMP_SUSPEND 0
563 #define VLIB_PROCESS_RESUME_LONGJMP_RESUME 1
564 
566 #define VLIB_PROCESS_IS_SUSPENDED_WAITING_FOR_CLOCK (1 << 0)
567 #define VLIB_PROCESS_IS_SUSPENDED_WAITING_FOR_EVENT (1 << 1)
568  /* Set to indicate that this process has been added to resume vector. */
569 #define VLIB_PROCESS_RESUME_PENDING (1 << 2)
570 
571  /* Process function is currently running. */
572 #define VLIB_PROCESS_IS_RUNNING (1 << 3)
573 
574  /* Size of process stack. */
576 
578 
579  /* Number of times this process was suspended. */
581 
582  /* Vectors of pending event data indexed by event type index. */
584 
585  /* Bitmap of event type-indices with non-empty vectors. */
587 
588  /* Bitmap of event type-indices which are one time events. */
590 
591  /* Type is opaque pointer -- typically a pointer to an event handler
592  function. Hash table to map opaque to a type index. */
594 
595  /* Pool of currently valid event types. */
597 
598  /*
599  * When suspending saves clock time (10us ticks) when process
600  * is to be resumed.
601  */
603 
604  /* Handle from timer code, to cancel an unexpired timer */
606 
607  /* Default output function and its argument for any CLI outputs
608  within the process. */
611 
612 #ifdef CLIB_UNIX
613  /* Pad to a multiple of the page size so we can mprotect process stacks */
614 #define PAGE_SIZE_MULTIPLE 0x1000
615 #define ALIGN_ON_MULTIPLE_PAGE_BOUNDARY_FOR_MPROTECT __attribute__ ((aligned (PAGE_SIZE_MULTIPLE)))
616 #else
617 #define ALIGN_ON_MULTIPLE_PAGE_BOUNDARY_FOR_MPROTECT
618 #endif
619 
620  /* Process stack. Starts here and extends 2^log2_n_stack_bytes
621  bytes. */
622 
623 #define VLIB_PROCESS_STACK_MAGIC (0xdead7ead)
625 } vlib_process_t __attribute__ ((aligned (CLIB_CACHE_LINE_BYTES)));
626 
627 #ifdef CLIB_UNIX
628  /* Ensure that the stack is aligned on the multiple of the page size */
629 typedef char
632  -
634  ==
635  0 ? 0 :
636  -1];
637 #endif
638 
639 typedef struct
640 {
642 
645 
646 typedef struct
647 {
649 
651 
652  /* n_data_elts * n_data_elt_bytes */
654 
655  /* Process node & event type to be used to signal event. */
657 
659 
660  union
661  {
662  u8 inline_event_data[64 - 3 * sizeof (u32) - 2 * sizeof (u16)];
663 
664  /* Vector of event data used only when data does not fit inline. */
666  };
667 }
669 
672 {
673  return d & 1;
674 }
675 
678 {
679  return 0 + 2 * i;
680 }
681 
684 {
685  return 1 + 2 * i;
686 }
687 
690 {
691  return d / 2;
692 }
693 
694 typedef struct
695 {
696  /* Public nodes. */
698 
699  /* Node index hashed by node name. */
701 
703 #define VLIB_NODE_MAIN_RUNTIME_STARTED (1 << 0)
704 
705  /* Nodes segregated by type for cache locality.
706  Does not apply to nodes of type VLIB_NODE_TYPE_INTERNAL. */
708 
709  /* Node runtime indices for input nodes with pending interrupts. */
712 
713  /* Input nodes are switched from/to interrupt to/from polling mode
714  when average vector length goes above/below polling/interrupt
715  thresholds. */
718 
719  /* Vector of next frames. */
721 
722  /* Vector of internal node's frames waiting to be called. */
724 
725  /* Timing wheel for scheduling time-based node dispatch. */
727 
729 
730  /* Opaque data vector added via timing_wheel_advance. */
732 
733  /* CPU time of next process to be ready on timing wheel. */
735 
736  /* Vector of process nodes.
737  One for each node of type VLIB_NODE_TYPE_PROCESS. */
739 
740  /* Current running process or ~0 if no process running. */
742 
743  /* Pool of pending process frames. */
745 
746  /* Vector of event data vectors pending recycle. */
748 
749  /* Current counts of nodes in each state. */
750  u32 input_node_counts_by_state[VLIB_N_NODE_STATE];
751 
752  /* Hash of (scalar_size,vector_size) to frame_sizes index. */
754 
755  /* Per-size frame allocation information. */
757 
758  /* Time of last node runtime stats clear. */
760 
761  /* Node registrations added by constructors */
763 
764  /* Node index from error code */
767 
769 
771 vlib_error_get_node (vlib_node_main_t * nm, vlib_error_t e)
772 {
773  return nm->node_by_error[e];
774 }
775 
777 vlib_error_get_code (vlib_node_main_t * nm, vlib_error_t e)
778 {
779  u32 node_index = nm->node_by_error[e];
780  vlib_node_t *n = nm->nodes[node_index];
781  u32 error_code = e - n->error_heap_index;
782  return error_code;
783 }
784 
785 #define FRAME_QUEUE_MAX_NELTS 32
786 typedef struct
787 {
788  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
798 
799 typedef struct
800 {
803 
804 #endif /* included_vlib_node_h */
805 
806 /*
807  * fd.io coding-style-patch-verification: ON
808  *
809  * Local Variables:
810  * eval: (c-set-style "gnu")
811  * End:
812  */
uword * sibling_bitmap
Definition: node.h:339
u32 * next_nodes
Definition: node.h:333
uword output_function_arg
Definition: node.h:610
u8 * state_string
Definition: node.h:367
u16 vector_size
Definition: node.h:319
u32 error_heap_index
Definition: node.h:323
u32 max_clock
Maximum clock cycle for an invocation.
Definition: node.h:476
u32 next_frame_index
Start of next frames for this node.
Definition: node.h:491
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
u32 flags
Definition: vhost_user.h:115
vlib_node_type_t
Definition: node.h:69
u32 interrupt_threshold_vector_length
Definition: node.h:717
vlib_process_t ** processes
Definition: node.h:738
vlib_node_runtime_t node_runtime
Definition: node.h:552
u32 n_suspends
Definition: node.h:580
unsigned long u64
Definition: types.h:89
clib_memset(h->entries, 0, sizeof(h->entries[0]) *entries)
u32 index
Definition: node.h:279
format_function_t * format_trace
Definition: node.h:360
void ** pending_event_data_by_type_index
Definition: node.h:583
u32 current_process_index
Definition: node.h:741
u16 flags
Definition: node.h:288
char ** error_strings
Definition: node.h:326
u32 clocks_since_last_overflow
Number of clock cycles.
Definition: node.h:474
int i
#define PAGE_SIZE_MULTIPLE
Definition: node.h:614
clib_spinlock_t pending_interrupt_lock
Definition: node.h:711
void * runtime_data
Definition: node.h:285
vlib_error_t * errors
Vector of errors for this node.
Definition: node.h:468
struct vlib_frame_t vlib_frame_t
static vlib_node_registration_t * vlib_node_next_registered(vlib_node_registration_t *c)
Definition: node.h:221
unsigned char u8
Definition: types.h:56
u64 perf_counter0_ticks
Definition: node.h:235
double f64
Definition: types.h:142
u16 thread_index
thread this node runs on
Definition: node.h:519
u8 state
Definition: node.h:307
u8 *() format_function_t(u8 *s, va_list *args)
Definition: format.h:48
u32 * pending_interrupt_node_runtime_indices
Definition: node.h:710
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:496
vlib_node_stats_t stats_last_clear
Definition: node.h:273
u32 main_loop_count_last_dispatch
Saved main loop counter of last dispatch of this node.
Definition: node.h:502
void ** recycled_event_data_vectors
Definition: node.h:747
#define always_inline
Definition: clib.h:98
u16 log2_n_stack_bytes
Definition: node.h:575
vlib_node_t ** nodes
Definition: node.h:697
u32 vectors_since_last_overflow
Number of vector elements processed by this node.
Definition: node.h:484
char ** next_node_names
Definition: node.h:330
char * sibling_of
Definition: node.h:336
u64 perf_counter_vectors
Definition: node.h:237
u16 vlib_error_t
Definition: node.h:768
static uword vlib_timing_wheel_data_is_timed_event(u32 d)
Definition: node.h:671
struct _vlib_node_fn_registration vlib_node_fn_registration_t
vhost_vring_state_t state
Definition: vhost_user.h:120
unsigned int u32
Definition: types.h:88
u32 perf_counter0_ticks_since_last_overflow
Perf counter 0 ticks.
Definition: node.h:487
u64 max_clock_n
Definition: node.h:234
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:636
u32 calls_since_last_overflow
Number of calls.
Definition: node.h:482
u32 next_frame_index
Definition: node.h:456
u32 error_heap_handle
Definition: node.h:322
vlib_node_stats_t stats_total
Definition: node.h:269
vlib_node_proto_hint_t
Definition: node.h:58
u16 state
Input node state.
Definition: node.h:509
vlib_signal_timed_event_data_t * signal_timed_event_data_pool
Definition: node.h:728
static void vlib_next_frame_init(vlib_next_frame_t *nf)
Definition: node.h:440
u16 frame_flags
Definition: node.h:383
f64 time_last_runtime_stats_clear
Definition: node.h:759
unsigned short u16
Definition: types.h:57
vlib_node_registration_t * node_registrations
Definition: node.h:762
u32 n_alloc_frames
Definition: node.h:537
static uword vlib_timing_wheel_data_get_index(u32 d)
Definition: node.h:689
u32 * node_by_error
Definition: node.h:765
u32 polling_threshold_vector_length
Definition: node.h:716
u64 * n_vectors_by_next_node
Definition: node.h:342
format_function_t * format_buffer
Definition: node.h:356
u8 protocol_hint
Definition: node.h:313
vlib_frame_t * frame
Definition: node.h:453
u32 node_index
Node index.
Definition: node.h:494
uword() unformat_function_t(unformat_input_t *input, va_list *args)
Definition: format.h:232
uword * frame_size_hash
Definition: node.h:753
u8 name[64]
Definition: memclnt.api:152
static u32 vlib_error_get_code(vlib_node_main_t *nm, vlib_error_t e)
Definition: node.h:777
u8 * name
Definition: node.h:263
i32 priority
Definition: ipsec.api:91
u32 owner_node_index
Definition: node.h:353
svmdb_client_t * c
u16 n_vectors
Definition: node.h:395
u32 runtime_index
Definition: node.h:282
vlib_main_t * vm
Definition: buffer.c:312
vlib_pending_frame_t * pending_frames
Definition: node.h:723
u32 node_runtime_index
Definition: node.h:450
unformat_function_t * unformat_buffer
Definition: node.h:357
u32 perf_counter_vectors_since_last_overflow
Perf counter vectors.
Definition: node.h:489
uword * node_by_name
Definition: node.h:700
u32 stack [0] ALIGN_ON_MULTIPLE_PAGE_BOUNDARY_FOR_MPROTECT
Definition: node.h:624
vlib_frame_t ** free_frames
Definition: node.h:540
vlib_node_fn_registration_t * node_fn_registrations
Definition: node.h:370
uword * one_time_event_type_bitmap
Definition: node.h:589
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:513
u64 perf_counter1_ticks
Definition: node.h:236
struct vlib_node_runtime_t vlib_node_runtime_t
vlib_frame_t * frame
Definition: node.h:404
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:386
uword * next_slot_by_node
Definition: node.h:347
size_t count
Definition: vapi.c:47
uword * prev_node_bitmap
Definition: node.h:350
#define foreach_vlib_node_state
Definition: node.h:240
static u32 vlib_error_get_node(vlib_node_main_t *nm, vlib_error_t e)
Definition: node.h:771
struct _vlib_node_registration vlib_node_registration_t
vlib_process_event_type_t * event_type_pool
Definition: node.h:596
u32 * data_from_advancing_timing_wheel
Definition: node.h:731
u32 perf_counter1_ticks_since_last_overflow
Perf counter 1 ticks.
Definition: node.h:488
vlib_pending_frame_t * suspended_process_frames
Definition: node.h:744
u64 uword
Definition: types.h:112
u8 vector_size
Definition: node.h:392
vlib_next_frame_t * next_frames
Definition: node.h:720
static u32 vlib_timing_wheel_data_set_timed_event(u32 i)
Definition: node.h:683
u32 stop_timer_handle
Definition: node.h:605
uword * event_type_index_by_type_opaque
Definition: node.h:593
vlib_frame_size_t * frame_sizes
Definition: node.h:756
u64 resume_clock_interval
Definition: node.h:602
u16 flags
Definition: node.h:565
vlib_node_type_t type
Definition: node.h:276
u32 name_elog_string
Definition: node.h:266
vlib_node_state_t
Definition: node.h:249
u16 n_errors
Definition: node.h:316
u32 suspended_process_frame_index
Definition: node.h:577
clib_longjmp_t return_longjmp
Definition: node.h:555
u16 flags
Copy of main node flags.
Definition: node.h:507
u32 node_runtime_index
Definition: node.h:407
u8 scalar_size
Definition: node.h:389
void() vlib_cli_output_function_t(uword arg, u8 *buffer, uword buffer_bytes)
Definition: cli.h:131
vlib_cli_output_function_t * output_function
Definition: node.h:609
clib_longjmp_t resume_longjmp
Definition: node.h:561
#define CLIB_CACHE_LINE_BYTES
Definition: cache.h:59
static u32 vlib_timing_wheel_data_set_suspended_process(u32 i)
Definition: node.h:677
void * timing_wheel
Definition: node.h:726
u8 runtime_data_bytes
Definition: node.h:310
#define FRAME_QUEUE_MAX_NELTS
Definition: node.h:785
f64 time_next_process_ready
Definition: node.h:734
struct vlib_node_t vlib_node_t
u32 vectors_since_last_overflow
Definition: node.h:436
u32 max_clock_n
Number of vectors in the recorded max_clock.
Definition: node.h:479
uword * non_empty_event_type_bitmap
Definition: node.h:586