FD.io VPP  v18.07-rc0-415-g6c78436
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 {
60  /* An internal node on the call graph (could be output). */
62 
63  /* Nodes which input data into the processing graph.
64  Input nodes are called for each iteration of main loop. */
66 
67  /* Nodes to be called before all input nodes.
68  Used, for example, to clean out driver TX rings before
69  processing input. */
71 
72  /* "Process" nodes which can be suspended and later resumed. */
74 
77 
78 typedef struct _vlib_node_fn_registration
79 {
80  vlib_node_function_t *function;
81  int priority;
82  struct _vlib_node_fn_registration *next_registration;
84 
85 typedef struct _vlib_node_registration
86 {
87  /* Vector processing function for this node. */
88  vlib_node_function_t *function;
89 
90  /* Node function candidate registration with priority */
91  vlib_node_fn_registration_t *node_fn_registrations;
92 
93  /* Node name. */
94  char *name;
95 
96  /* Name of sibling (if applicable). */
97  char *sibling_of;
98 
99  /* Node index filled in by registration. */
100  u32 index;
101 
102  /* Type of this node. */
103  vlib_node_type_t type;
104 
105  /* Error strings indexed by error code for this node. */
106  char **error_strings;
107 
108  /* Buffer format/unformat for this node. */
109  format_function_t *format_buffer;
110  unformat_function_t *unformat_buffer;
111 
112  /* Trace format/unformat for this node. */
113  format_function_t *format_trace;
114  unformat_function_t *unformat_trace;
115 
116  /* Function to validate incoming frames. */
117  u8 *(*validate_frame) (struct vlib_main_t * vm,
118  struct vlib_node_runtime_t *,
119  struct vlib_frame_t * f);
120 
121  /* Per-node runtime data. */
122  void *runtime_data;
123 
124  /* Process stack size. */
125  u16 process_log2_n_stack_bytes;
126 
127  /* Number of bytes of per-node run time data. */
128  u8 runtime_data_bytes;
129 
130  /* State for input nodes. */
131  u8 state;
132 
133  /* Node flags. */
134  u16 flags;
135 
136  /* Size of scalar and vector arguments in bytes. */
138 
139  /* Number of error codes used by this node. */
140  u16 n_errors;
141 
142  /* Number of next node names that follow. */
143  u16 n_next_nodes;
144 
145  /* Constructor link-list, don't ask... */
146  struct _vlib_node_registration *next_registration;
147 
148  /* Names of next nodes which this node feeds into. */
149  char *next_nodes[];
150 
152 
153 #define VLIB_REGISTER_NODE(x,...) \
154  __VA_ARGS__ vlib_node_registration_t x; \
155 static void __vlib_add_node_registration_##x (void) \
156  __attribute__((__constructor__)) ; \
157 static void __vlib_add_node_registration_##x (void) \
158 { \
159  vlib_main_t * vm = vlib_get_main(); \
160  x.next_registration = vm->node_main.node_registrations; \
161  vm->node_main.node_registrations = &x; \
162 } \
163 static void __vlib_rm_node_registration_##x (void) \
164  __attribute__((__destructor__)) ; \
165 static void __vlib_rm_node_registration_##x (void) \
166 { \
167  vlib_main_t * vm = vlib_get_main(); \
168  VLIB_REMOVE_FROM_LINKED_LIST (vm->node_main.node_registrations, \
169  &x, next_registration); \
170 } \
171 __VA_ARGS__ vlib_node_registration_t x
172 
173 #define VLIB_NODE_FN(node) \
174 uword CLIB_MARCH_SFX (node##_fn)(); \
175 static vlib_node_fn_registration_t \
176  CLIB_MARCH_SFX(node##_fn_registration) = \
177  { .function = &CLIB_MARCH_SFX (node##_fn), }; \
178  \
179 static void __clib_constructor \
180 CLIB_MARCH_SFX (node##_multiarch_register) (void) \
181 { \
182  extern vlib_node_registration_t node; \
183  vlib_node_fn_registration_t *r; \
184  r = & CLIB_MARCH_SFX (node##_fn_registration); \
185  r->priority = CLIB_MARCH_FN_PRIORITY(); \
186  r->next_registration = node.node_fn_registrations; \
187  node.node_fn_registrations = r; \
188 } \
189 uword CLIB_CPU_OPTIMIZED CLIB_MARCH_SFX (node##_fn)
190 
191 #if CLIB_DEBUG > 0
192 #define VLIB_NODE_FUNCTION_CLONE_TEMPLATE(arch, fn)
193 #define VLIB_NODE_FUNCTION_MULTIARCH_CLONE(fn)
194 #define VLIB_NODE_FUNCTION_MULTIARCH(node, fn)
195 #else
196 #define VLIB_NODE_FUNCTION_CLONE_TEMPLATE(arch, fn, tgt) \
197  uword \
198  __attribute__ ((flatten)) \
199  __attribute__ ((target (tgt))) \
200  CLIB_CPU_OPTIMIZED \
201  fn ## _ ## arch ( struct vlib_main_t * vm, \
202  struct vlib_node_runtime_t * node, \
203  struct vlib_frame_t * frame) \
204  { return fn (vm, node, frame); }
205 
206 #define VLIB_NODE_FUNCTION_MULTIARCH_CLONE(fn) \
207  foreach_march_variant(VLIB_NODE_FUNCTION_CLONE_TEMPLATE, fn)
208 
209 #define VLIB_NODE_FUNCTION_MULTIARCH(node, fn) \
210  VLIB_NODE_FUNCTION_MULTIARCH_CLONE(fn) \
211  CLIB_MULTIARCH_SELECT_FN(fn, static inline) \
212  static void __attribute__((__constructor__)) \
213  __vlib_node_function_multiarch_select_##node (void) \
214  { node.function = fn ## _multiarch_select(); }
215 #endif
216 
219 {
220  c =
222  c->n_next_nodes * sizeof (c->next_nodes[0]));
223  return c;
224 }
225 
226 typedef struct
227 {
228  /* Total calls, clock ticks and vector elements processed for this node. */
229  u64 calls, vectors, clocks, suspends;
233 
234 #define foreach_vlib_node_state \
235  /* Input node is called each iteration of main loop. \
236  This is the default (zero). */ \
237  _ (POLLING) \
238  /* Input node is called when device signals an interrupt. */ \
239  _ (INTERRUPT) \
240  /* Input node is never called. */ \
241  _ (DISABLED)
242 
243 typedef enum
244 {
245 #define _(f) VLIB_NODE_STATE_##f,
247 #undef _
250 
251 typedef struct vlib_node_t
252 {
253  /* Vector processing function for this node. */
255 
256  /* Node name. */
258 
259  /* Node name index in elog string table. */
261 
262  /* Total statistics for this node. */
264 
265  /* Saved values as of last clear (or zero if never cleared).
266  Current values are always stats_total - stats_last_clear. */
268 
269  /* Type of this node. */
270  vlib_node_type_t type;
271 
272  /* Node index. */
274 
275  /* Index of corresponding node runtime. */
277 
278  /* Runtime data for this node. */
280 
281  /* Node flags. */
283 
284  /* Processing function keeps frame. Tells node dispatching code not
285  to free frame after dispatch is done. */
286 #define VLIB_NODE_FLAG_FRAME_NO_FREE_AFTER_DISPATCH (1 << 0)
287 
288  /* Node counts as output/drop/punt node for stats purposes. */
289 #define VLIB_NODE_FLAG_IS_OUTPUT (1 << 1)
290 #define VLIB_NODE_FLAG_IS_DROP (1 << 2)
291 #define VLIB_NODE_FLAG_IS_PUNT (1 << 3)
292 #define VLIB_NODE_FLAG_IS_HANDOFF (1 << 4)
293 
294  /* Set if current node runtime has traced vectors. */
295 #define VLIB_NODE_FLAG_TRACE (1 << 5)
296 
297 #define VLIB_NODE_FLAG_SWITCH_FROM_INTERRUPT_TO_POLLING_MODE (1 << 6)
298 #define VLIB_NODE_FLAG_SWITCH_FROM_POLLING_TO_INTERRUPT_MODE (1 << 7)
299 
300  /* State for input nodes. */
302 
303  /* Number of bytes of run time data. */
305 
306  /* Number of error codes used by this node. */
308 
309  /* Size of scalar and vector arguments in bytes. */
310  u16 scalar_size, vector_size;
311 
312  /* Handle/index in error heap for this node. */
315 
316  /* Error strings indexed by error code for this node. */
318 
319  /* Vector of next node names.
320  Only used before next_nodes array is initialized. */
322 
323  /* Next node indices for this node. */
325 
326  /* Name of node that we are sibling of. */
327  char *sibling_of;
328 
329  /* Bitmap of all of this node's siblings. */
331 
332  /* Total number of vectors sent to each next node. */
334 
335  /* Hash table mapping next node index into slot in
336  next_nodes vector. Quickly determines whether this node
337  is connected to given next node and, if so, with which slot. */
339 
340  /* Bitmap of node indices which feed this node. */
342 
343  /* Node/next-index which own enqueue rights with to this node. */
344  u32 owner_node_index, owner_next_index;
345 
346  /* Buffer format/unformat for this node. */
349 
350  /* Trace buffer format/unformat for this node. */
352 
353  /* Function to validate incoming frames. */
354  u8 *(*validate_frame) (struct vlib_main_t * vm,
355  struct vlib_node_runtime_t *,
356  struct vlib_frame_t * f);
357  /* for pretty-printing, not typically valid */
359 } vlib_node_t;
360 
361 #define VLIB_INVALID_NODE_INDEX ((u32) ~0)
362 
363 /* Max number of vector elements to process at once per node. */
364 #define VLIB_FRAME_SIZE 256
365 #define VLIB_FRAME_ALIGN CLIB_CACHE_LINE_BYTES
366 
367 /* Calling frame (think stack frame) for a node. */
368 typedef struct vlib_frame_t
369 {
370  /* Frame flags. */
372 
373  /* Number of scalar bytes in arguments. */
375 
376  /* Number of bytes per vector argument. */
378 
379  /* Number of vector elements currently in frame. */
381 
382  /* Scalar and vector arguments to next node. */
383  u8 arguments[0];
384 } vlib_frame_t;
385 
386 typedef struct
387 {
388  /* Frame index. */
390 
391  /* Node runtime for this next. */
393 
394  /* Next frame flags. */
396 
397  /* Reflects node frame-used flag for this next. */
398 #define VLIB_FRAME_NO_FREE_AFTER_DISPATCH \
399  VLIB_NODE_FLAG_FRAME_NO_FREE_AFTER_DISPATCH
400 
401  /* This next frame owns enqueue to node
402  corresponding to node_runtime_index. */
403 #define VLIB_FRAME_OWNER (1 << 15)
404 
405  /* Set when frame has been allocated for this next. */
406 #define VLIB_FRAME_IS_ALLOCATED VLIB_NODE_FLAG_IS_OUTPUT
407 
408  /* Set when frame has been added to pending vector. */
409 #define VLIB_FRAME_PENDING VLIB_NODE_FLAG_IS_DROP
410 
411  /* Set when frame is to be freed after dispatch. */
412 #define VLIB_FRAME_FREE_AFTER_DISPATCH VLIB_NODE_FLAG_IS_PUNT
413 
414  /* Set when frame has traced packets. */
415 #define VLIB_FRAME_TRACE VLIB_NODE_FLAG_TRACE
416 
417  /* Number of vectors enqueue to this next since last overflow. */
420 
421 always_inline void
423 {
424  memset (nf, 0, sizeof (nf[0]));
425  nf->frame_index = ~0;
426  nf->node_runtime_index = ~0;
427 }
428 
429 /* A frame pending dispatch by main loop. */
430 typedef struct
431 {
432  /* Node and runtime for this frame. */
434 
435  /* Frame index (in the heap). */
437 
438  /* Start of next frames for this node. */
440 
441  /* Special value for next_frame_index when there is no next frame. */
442 #define VLIB_PENDING_FRAME_NO_NEXT_FRAME ((u32) ~0)
444 
445 typedef struct vlib_node_runtime_t
446 {
447  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0); /**< cacheline mark */
448 
449  vlib_node_function_t *function; /**< Node function to call. */
450 
451  vlib_error_t *errors; /**< Vector of errors for this node. */
452 
453 #if __SIZEOF_POINTER__ == 4
454  u8 pad[8];
455 #endif
456 
457  u32 clocks_since_last_overflow; /**< Number of clock cycles. */
458 
459  u32 max_clock; /**< Maximum clock cycle for an
460  invocation. */
461 
462  u32 max_clock_n; /**< Number of vectors in the recorded
463  max_clock. */
464 
465  u32 calls_since_last_overflow; /**< Number of calls. */
466 
467  u32 vectors_since_last_overflow; /**< Number of vector elements
468  processed by this node. */
469 
470  u32 next_frame_index; /**< Start of next frames for this
471  node. */
472 
473  u32 node_index; /**< Node index. */
474 
475  u32 input_main_loops_per_call; /**< For input nodes: decremented
476  on each main loop interation until
477  it reaches zero and function is
478  called. Allows some input nodes to
479  be called more than others. */
480 
481  u32 main_loop_count_last_dispatch; /**< Saved main loop counter of last
482  dispatch of this node. */
483 
484  u32 main_loop_vector_stats[2];
485 
486  u16 flags; /**< Copy of main node flags. */
487 
488  u16 state; /**< Input node state. */
489 
491 
492  u16 cached_next_index; /**< Next frame index that vector
493  arguments were last enqueued to
494  last time this node ran. Set to
495  zero before first run of this
496  node. */
497 
498  u16 thread_index; /**< thread this node runs on */
499 
500  u8 runtime_data[0]; /**< Function dependent
501  node-runtime data. This data is
502  thread local, and it is not
503  cloned from main thread. It needs
504  to be initialized for each thread
505  before it is used unless
506  runtime_data template exists in
507  vlib_node_t. */
508 }
510 
511 #define VLIB_NODE_RUNTIME_DATA_SIZE (sizeof (vlib_node_runtime_t) - STRUCT_OFFSET_OF (vlib_node_runtime_t, runtime_data))
512 
513 typedef struct
514 {
515  /* Number of allocated frames for this scalar/vector size. */
517 
518  /* Vector of free frame indices for this scalar/vector size. */
521 
522 typedef struct
523 {
524  /* Users opaque value for event type. */
527 
528 typedef struct
529 {
530  /* Node runtime for this process. */
532 
533  /* Where to longjmp when process is done. */
535 
536 #define VLIB_PROCESS_RETURN_LONGJMP_RETURN ((uword) ~0 - 0)
537 #define VLIB_PROCESS_RETURN_LONGJMP_SUSPEND ((uword) ~0 - 1)
538 
539  /* Where to longjmp to resume node after suspend. */
541 #define VLIB_PROCESS_RESUME_LONGJMP_SUSPEND 0
542 #define VLIB_PROCESS_RESUME_LONGJMP_RESUME 1
543 
545 #define VLIB_PROCESS_IS_SUSPENDED_WAITING_FOR_CLOCK (1 << 0)
546 #define VLIB_PROCESS_IS_SUSPENDED_WAITING_FOR_EVENT (1 << 1)
547  /* Set to indicate that this process has been added to resume vector. */
548 #define VLIB_PROCESS_RESUME_PENDING (1 << 2)
549 
550  /* Process function is currently running. */
551 #define VLIB_PROCESS_IS_RUNNING (1 << 3)
552 
553  /* Size of process stack. */
555 
557 
558  /* Number of times this process was suspended. */
560 
561  /* Vectors of pending event data indexed by event type index. */
563 
564  /* Bitmap of event type-indices with non-empty vectors. */
566 
567  /* Bitmap of event type-indices which are one time events. */
569 
570  /* Type is opaque pointer -- typically a pointer to an event handler
571  function. Hash table to map opaque to a type index. */
573 
574  /* Pool of currently valid event types. */
576 
577  /*
578  * When suspending saves clock time (10us ticks) when process
579  * is to be resumed.
580  */
582 
583  /* Handle from timer code, to cancel an unexpired timer */
585 
586  /* Default output function and its argument for any CLI outputs
587  within the process. */
590 
591 #ifdef CLIB_UNIX
592  /* Pad to a multiple of the page size so we can mprotect process stacks */
593 #define PAGE_SIZE_MULTIPLE 0x1000
594 #define ALIGN_ON_MULTIPLE_PAGE_BOUNDARY_FOR_MPROTECT __attribute__ ((aligned (PAGE_SIZE_MULTIPLE)))
595 #else
596 #define ALIGN_ON_MULTIPLE_PAGE_BOUNDARY_FOR_MPROTECT
597 #endif
598 
599  /* Process stack. Starts here and extends 2^log2_n_stack_bytes
600  bytes. */
601 
602 #define VLIB_PROCESS_STACK_MAGIC (0xdead7ead)
604 } vlib_process_t __attribute__ ((aligned (CLIB_CACHE_LINE_BYTES)));
605 
606 #ifdef CLIB_UNIX
607  /* Ensure that the stack is aligned on the multiple of the page size */
608 typedef char
611  -
613  ==
614  0 ? 0 :
615  -1];
616 #endif
617 
618 typedef struct
619 {
621 
624 
625 typedef struct
626 {
628 
630 
631  /* n_data_elts * n_data_elt_bytes */
633 
634  /* Process node & event type to be used to signal event. */
636 
638 
639  union
640  {
641  u8 inline_event_data[64 - 3 * sizeof (u32) - 2 * sizeof (u16)];
642 
643  /* Vector of event data used only when data does not fit inline. */
645  };
646 }
648 
651 {
652  return d & 1;
653 }
654 
657 {
658  return 0 + 2 * i;
659 }
660 
663 {
664  return 1 + 2 * i;
665 }
666 
669 {
670  return d / 2;
671 }
672 
673 typedef struct
674 {
675  /* Public nodes. */
677 
678  /* Node index hashed by node name. */
680 
682 #define VLIB_NODE_MAIN_RUNTIME_STARTED (1 << 0)
683 
684  /* Nodes segregated by type for cache locality.
685  Does not apply to nodes of type VLIB_NODE_TYPE_INTERNAL. */
687 
688  /* Node runtime indices for input nodes with pending interrupts. */
691 
692  /* Input nodes are switched from/to interrupt to/from polling mode
693  when average vector length goes above/below polling/interrupt
694  thresholds. */
697 
698  /* Vector of next frames. */
700 
701  /* Vector of internal node's frames waiting to be called. */
703 
704  /* Timing wheel for scheduling time-based node dispatch. */
706 
708 
709  /* Opaque data vector added via timing_wheel_advance. */
711 
712  /* CPU time of next process to be ready on timing wheel. */
714 
715  /* Vector of process nodes.
716  One for each node of type VLIB_NODE_TYPE_PROCESS. */
718 
719  /* Current running process or ~0 if no process running. */
721 
722  /* Pool of pending process frames. */
724 
725  /* Vector of event data vectors pending recycle. */
727 
728  /* Current counts of nodes in each state. */
729  u32 input_node_counts_by_state[VLIB_N_NODE_STATE];
730 
731  /* Hash of (scalar_size,vector_size) to frame_sizes index. */
733 
734  /* Per-size frame allocation information. */
736 
737  /* Time of last node runtime stats clear. */
739 
740  /* Node registrations added by constructors */
743 
744 
745 #define FRAME_QUEUE_MAX_NELTS 32
746 typedef struct
747 {
748  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
758 
759 typedef struct
760 {
763 
764 #endif /* included_vlib_node_h */
765 
766 /*
767  * fd.io coding-style-patch-verification: ON
768  *
769  * Local Variables:
770  * eval: (c-set-style "gnu")
771  * End:
772  */
uword * sibling_bitmap
Definition: node.h:330
u32 * next_nodes
Definition: node.h:324
uword output_function_arg
Definition: node.h:589
u8 * state_string
Definition: node.h:358
uword( unformat_function_t)(unformat_input_t *input, va_list *args)
Definition: format.h:231
u16 vector_size
Definition: node.h:310
u32 error_heap_index
Definition: node.h:314
u32 max_clock
Maximum clock cycle for an invocation.
Definition: node.h:459
u32 next_frame_index
Start of next frames for this node.
Definition: node.h:470
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:63
vlib_node_type_t
Definition: node.h:58
u32 interrupt_threshold_vector_length
Definition: node.h:696
vlib_process_t ** processes
Definition: node.h:717
vlib_node_runtime_t node_runtime
Definition: node.h:531
u32 n_suspends
Definition: node.h:559
unsigned long u64
Definition: types.h:89
u32 index
Definition: node.h:273
format_function_t * format_trace
Definition: node.h:351
void ** pending_event_data_by_type_index
Definition: node.h:562
u32 current_process_index
Definition: node.h:720
u16 flags
Definition: node.h:282
char ** error_strings
Definition: node.h:317
u16 vlib_error_t
Definition: error.h:44
u32 clocks_since_last_overflow
Number of clock cycles.
Definition: node.h:457
int i
#define PAGE_SIZE_MULTIPLE
Definition: node.h:593
u8 *( format_function_t)(u8 *s, va_list *args)
Definition: format.h:48
clib_spinlock_t pending_interrupt_lock
Definition: node.h:690
void * runtime_data
Definition: node.h:279
vlib_error_t * errors
Vector of errors for this node.
Definition: node.h:451
struct vlib_frame_t vlib_frame_t
static vlib_node_registration_t * vlib_node_next_registered(vlib_node_registration_t *c)
Definition: node.h:218
unsigned char u8
Definition: types.h:56
double f64
Definition: types.h:142
u16 thread_index
thread this node runs on
Definition: node.h:498
u8 state
Definition: node.h:301
u32 * pending_interrupt_node_runtime_indices
Definition: node.h:689
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:475
vlib_node_stats_t stats_last_clear
Definition: node.h:267
u32 main_loop_count_last_dispatch
Saved main loop counter of last dispatch of this node.
Definition: node.h:481
void ** recycled_event_data_vectors
Definition: node.h:726
#define always_inline
Definition: clib.h:92
u16 log2_n_stack_bytes
Definition: node.h:554
vlib_node_t ** nodes
Definition: node.h:676
u32 vectors_since_last_overflow
Number of vector elements processed by this node.
Definition: node.h:467
char ** next_node_names
Definition: node.h:321
char * sibling_of
Definition: node.h:327
static uword vlib_timing_wheel_data_is_timed_event(u32 d)
Definition: node.h:650
struct _vlib_node_fn_registration vlib_node_fn_registration_t
unsigned int u32
Definition: types.h:88
u32 * free_frame_indices
Definition: node.h:519
u64 max_clock_n
Definition: node.h:231
u32 calls_since_last_overflow
Number of calls.
Definition: node.h:465
u32 next_frame_index
Definition: node.h:439
u32 error_heap_handle
Definition: node.h:313
vlib_node_stats_t stats_total
Definition: node.h:263
u16 state
Input node state.
Definition: node.h:488
u32 frame_index
Definition: node.h:389
vlib_signal_timed_event_data_t * signal_timed_event_data_pool
Definition: node.h:707
static void vlib_next_frame_init(vlib_next_frame_t *nf)
Definition: node.h:422
f64 time_last_runtime_stats_clear
Definition: node.h:738
unsigned short u16
Definition: types.h:57
vlib_node_registration_t * node_registrations
Definition: node.h:741
u32 n_alloc_frames
Definition: node.h:516
static uword vlib_timing_wheel_data_get_index(u32 d)
Definition: node.h:668
u32 polling_threshold_vector_length
Definition: node.h:695
u64 * n_vectors_by_next_node
Definition: node.h:333
format_function_t * format_buffer
Definition: node.h:347
u32 node_index
Node index.
Definition: node.h:473
uword * frame_size_hash
Definition: node.h:732
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
u8 * name
Definition: node.h:257
u32 owner_node_index
Definition: node.h:344
svmdb_client_t * c
u16 n_vectors
Definition: node.h:380
u32 runtime_index
Definition: node.h:276
vlib_main_t * vm
Definition: buffer.c:294
vlib_pending_frame_t * pending_frames
Definition: node.h:702
u32 node_runtime_index
Definition: node.h:433
unformat_function_t * unformat_buffer
Definition: node.h:348
uword * node_by_name
Definition: node.h:679
u32 stack[0] ALIGN_ON_MULTIPLE_PAGE_BOUNDARY_FOR_MPROTECT
Definition: node.h:603
uword * one_time_event_type_bitmap
Definition: node.h:568
signed int i32
Definition: types.h:81
#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:492
struct vlib_node_runtime_t vlib_node_runtime_t
u16 flags
Definition: node.h:371
void( vlib_cli_output_function_t)(uword arg, u8 *buffer, uword buffer_bytes)
Definition: cli.h:131
vhost_vring_state_t state
Definition: vhost-user.h:82
uword * next_slot_by_node
Definition: node.h:338
size_t count
Definition: vapi.c:42
uword * prev_node_bitmap
Definition: node.h:341
#define foreach_vlib_node_state
Definition: node.h:234
struct _vlib_node_registration vlib_node_registration_t
vlib_process_event_type_t * event_type_pool
Definition: node.h:575
u32 * data_from_advancing_timing_wheel
Definition: node.h:710
vlib_pending_frame_t * suspended_process_frames
Definition: node.h:723
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:615
u64 uword
Definition: types.h:112
u8 vector_size
Definition: node.h:377
vlib_next_frame_t * next_frames
Definition: node.h:699
static u32 vlib_timing_wheel_data_set_timed_event(u32 i)
Definition: node.h:662
u32 stop_timer_handle
Definition: node.h:584
uword * event_type_index_by_type_opaque
Definition: node.h:572
vlib_frame_size_t * frame_sizes
Definition: node.h:735
u64 resume_clock_interval
Definition: node.h:581
u16 flags
Definition: node.h:544
vlib_node_type_t type
Definition: node.h:270
u32 name_elog_string
Definition: node.h:260
vlib_node_state_t
Definition: node.h:243
u16 n_errors
Definition: node.h:307
u32 suspended_process_frame_index
Definition: node.h:556
clib_longjmp_t return_longjmp
Definition: node.h:534
u16 flags
Copy of main node flags.
Definition: node.h:486
u32 node_runtime_index
Definition: node.h:392
u8 scalar_size
Definition: node.h:374
vlib_cli_output_function_t * output_function
Definition: node.h:588
clib_longjmp_t resume_longjmp
Definition: node.h:540
u32 flags
Definition: vhost-user.h:77
#define CLIB_CACHE_LINE_BYTES
Definition: cache.h:62
static u32 vlib_timing_wheel_data_set_suspended_process(u32 i)
Definition: node.h:656
void * timing_wheel
Definition: node.h:705
u8 runtime_data_bytes
Definition: node.h:304
#define FRAME_QUEUE_MAX_NELTS
Definition: node.h:745
f64 time_next_process_ready
Definition: node.h:713
struct vlib_node_t vlib_node_t
u32 vectors_since_last_overflow
Definition: node.h:418
u32 max_clock_n
Number of vectors in the recorded max_clock.
Definition: node.h:462
uword * non_empty_event_type_bitmap
Definition: node.h:565