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:
7 * http://www.apache.org/licenses/LICENSE-2.0
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.
16 #include <vppinfra/mem.h>
17 #include <vlib/vlib.h>
18 #include <vlib/unix/unix.h>
19 #include "stat_segment.h"
20 #include <vnet/vnet.h>
21 #include <vnet/devices/devices.h> /* vnet_get_aggregate_rx_packets */
22 #undef HAVE_MEMFD_CREATE
23 #include <vppinfra/linux/syscall.h>
24 #include <vpp-api/client/stat_client.h>
26 stat_segment_main_t stat_segment_main;
29 * Used only by VPP writers
32 vlib_stat_segment_lock (void)
34 stat_segment_main_t *sm = &stat_segment_main;
35 clib_spinlock_lock (sm->stat_segment_lockp);
36 sm->shared_header->in_progress = 1;
40 vlib_stat_segment_unlock (void)
42 stat_segment_main_t *sm = &stat_segment_main;
43 sm->shared_header->epoch++;
44 sm->shared_header->in_progress = 0;
45 clib_spinlock_unlock (sm->stat_segment_lockp);
49 * Change heap to the stats shared memory segment
52 vlib_stats_push_heap (void *old)
54 stat_segment_main_t *sm = &stat_segment_main;
57 ASSERT (sm && sm->shared_header);
58 return clib_mem_set_heap (sm->heap);
62 lookup_hash_index (u8 * name)
64 stat_segment_main_t *sm = &stat_segment_main;
65 u32 index = STAT_SEGMENT_INDEX_INVALID;
68 /* Must be called in the context of the main heap */
69 ASSERT (clib_mem_get_heap () != sm->heap);
71 hp = hash_get_pair (sm->directory_vector_by_name, name);
81 create_hash_index (u8 * name, u32 index)
83 stat_segment_main_t *sm = &stat_segment_main;
85 /* Must be called in the context of the main heap */
86 ASSERT (clib_mem_get_heap () != sm->heap);
88 hash_set (sm->directory_vector_by_name, format (0, "%s%c", name, 0), index);
92 vlib_stats_get_next_vector_index ()
94 stat_segment_main_t *sm = &stat_segment_main;
95 u32 next_vector_index = vec_len (sm->directory_vector);
98 vec_foreach_index_backwards (i, sm->directory_vector)
100 if (sm->directory_vector[i].type == STAT_DIR_TYPE_EMPTY)
102 next_vector_index = i;
107 return next_vector_index;
111 vlib_stats_create_counter (stat_segment_directory_entry_t * e, void *oldheap)
113 stat_segment_main_t *sm = &stat_segment_main;
115 ASSERT (clib_mem_get_heap () == sm->heap);
117 u32 index = vlib_stats_get_next_vector_index ();
119 clib_mem_set_heap (oldheap);
120 create_hash_index ((u8 *) e->name, index);
121 clib_mem_set_heap (sm->heap);
123 vec_validate (sm->directory_vector, index);
124 sm->directory_vector[index] = *e;
130 vlib_stats_delete_counter (u32 index, void *oldheap)
132 stat_segment_main_t *sm = &stat_segment_main;
133 stat_segment_directory_entry_t *e;
135 ASSERT (clib_mem_get_heap () == sm->heap);
137 if (index > vec_len (sm->directory_vector))
140 e = &sm->directory_vector[index];
142 clib_mem_set_heap (oldheap);
143 hash_unset (sm->directory_vector_by_name, &e->name);
144 clib_mem_set_heap (sm->heap);
146 memset (e, 0, sizeof (*e));
147 e->type = STAT_DIR_TYPE_EMPTY;
151 * Called from main heap
154 vlib_stats_delete_cm (void *cm_arg)
156 vlib_simple_counter_main_t *cm = (vlib_simple_counter_main_t *) cm_arg;
157 stat_segment_main_t *sm = &stat_segment_main;
158 stat_segment_directory_entry_t *e;
160 /* Not all counters have names / hash-table entries */
161 if (!cm->name && !cm->stat_segment_name)
165 vlib_stat_segment_lock ();
167 /* Lookup hash-table is on the main heap */
168 char *stat_segment_name =
169 cm->stat_segment_name ? cm->stat_segment_name : cm->name;
170 u32 index = lookup_hash_index ((u8 *) stat_segment_name);
172 e = &sm->directory_vector[index];
173 hash_unset (sm->directory_vector_by_name, &e->name);
175 void *oldheap = clib_mem_set_heap (sm->heap); /* Enter stats segment */
176 clib_mem_set_heap (oldheap); /* Exit stats segment */
178 memset (e, 0, sizeof (*e));
179 e->type = STAT_DIR_TYPE_EMPTY;
181 vlib_stat_segment_unlock ();
185 vlib_stats_pop_heap (void *cm_arg, void *oldheap, u32 cindex,
186 stat_directory_type_t type)
188 vlib_simple_counter_main_t *cm = (vlib_simple_counter_main_t *) cm_arg;
189 stat_segment_main_t *sm = &stat_segment_main;
190 stat_segment_shared_header_t *shared_header = sm->shared_header;
191 char *stat_segment_name;
192 stat_segment_directory_entry_t e = { 0 };
194 /* Not all counters have names / hash-table entries */
195 if (!cm->name && !cm->stat_segment_name)
197 clib_mem_set_heap (oldheap);
201 ASSERT (shared_header);
203 vlib_stat_segment_lock ();
205 /* Lookup hash-table is on the main heap */
207 cm->stat_segment_name ? cm->stat_segment_name : cm->name;
209 clib_mem_set_heap (oldheap); /* Exit stats segment */
210 u32 vector_index = lookup_hash_index ((u8 *) stat_segment_name);
211 /* Back to stats segment */
212 clib_mem_set_heap (sm->heap); /* Re-enter stat segment */
215 /* Update the vector */
216 if (vector_index == STAT_SEGMENT_INDEX_INVALID)
218 strncpy (e.name, stat_segment_name, 128 - 1);
220 vector_index = vlib_stats_create_counter (&e, oldheap);
223 stat_segment_directory_entry_t *ep = &sm->directory_vector[vector_index];
224 ep->data = cm->counters;
226 /* Reset the client hash table pointer, since it WILL change! */
227 shared_header->directory_vector = sm->directory_vector;
229 vlib_stat_segment_unlock ();
230 clib_mem_set_heap (oldheap);
234 vlib_stats_register_error_index (void *oldheap, u8 * name, u64 * em_vec,
237 stat_segment_main_t *sm = &stat_segment_main;
238 stat_segment_shared_header_t *shared_header = sm->shared_header;
239 stat_segment_directory_entry_t e;
241 ASSERT (shared_header);
243 vlib_stat_segment_lock ();
244 clib_mem_set_heap (oldheap); /* Exit stats segment */
245 u32 vector_index = lookup_hash_index (name);
246 /* Back to stats segment */
247 clib_mem_set_heap (sm->heap); /* Re-enter stat segment */
249 if (vector_index == STAT_SEGMENT_INDEX_INVALID)
251 memcpy (e.name, name, vec_len (name));
252 e.name[vec_len (name)] = '\0';
253 e.type = STAT_DIR_TYPE_ERROR_INDEX;
255 vector_index = vlib_stats_create_counter (&e, oldheap);
257 /* Warn clients to refresh any pointers they might be holding */
258 shared_header->directory_vector = sm->directory_vector;
261 vlib_stat_segment_unlock ();
265 stat_validate_counter_vector (stat_segment_directory_entry_t * ep, u32 max)
267 counter_t **counters = ep->data;
268 vlib_thread_main_t *tm = vlib_get_thread_main ();
271 vec_validate_aligned (counters, tm->n_vlib_mains - 1,
272 CLIB_CACHE_LINE_BYTES);
273 for (i = 0; i < tm->n_vlib_mains; i++)
274 vec_validate_aligned (counters[i], max, CLIB_CACHE_LINE_BYTES);
280 stat_set_simple_counter (stat_segment_directory_entry_t * ep,
281 u32 thread_index, u32 index, u64 value)
284 counter_t **counters = ep->data;
285 counter_t *cb = counters[thread_index];
290 vlib_stats_pop_heap2 (u64 * error_vector, u32 thread_index, void *oldheap,
293 stat_segment_main_t *sm = &stat_segment_main;
294 stat_segment_shared_header_t *shared_header = sm->shared_header;
296 ASSERT (shared_header);
299 vlib_stat_segment_lock ();
301 /* Reset the client hash table pointer, since it WILL change! */
302 vec_validate (sm->error_vector, thread_index);
303 sm->error_vector[thread_index] = error_vector;
305 shared_header->error_vector = sm->error_vector;
306 shared_header->directory_vector = sm->directory_vector;
309 vlib_stat_segment_unlock ();
310 clib_mem_set_heap (oldheap);
314 vlib_map_stat_segment_init (void)
316 stat_segment_main_t *sm = &stat_segment_main;
317 stat_segment_shared_header_t *shared_header;
319 uword memory_size, sys_page_sz;
321 char *mem_name = "stat segment";
322 void *heap, *memaddr;
324 memory_size = sm->memory_size;
325 if (memory_size == 0)
326 memory_size = STAT_SEGMENT_DEFAULT_SIZE;
328 if (sm->log2_page_sz == CLIB_MEM_PAGE_SZ_UNKNOWN)
329 sm->log2_page_sz = CLIB_MEM_PAGE_SZ_DEFAULT;
331 mfd = clib_mem_vm_create_fd (sm->log2_page_sz, mem_name);
334 if ((ftruncate (mfd, memory_size)) == -1)
335 return clib_error_return (0, "stat segment ftruncate failure");
338 return clib_error_return (0, "stat segment memory fd failure: %U",
339 format_clib_error, clib_mem_get_last_error ());
341 memaddr = clib_mem_vm_map_shared (0, memory_size, mfd, 0, mem_name);
343 if (memaddr == CLIB_MEM_VM_MAP_FAILED)
344 return clib_error_return (0, "stat segment mmap failure");
346 sys_page_sz = clib_mem_get_page_size ();
348 heap = clib_mem_create_heap (((u8 *) memaddr) + sys_page_sz, memory_size
349 - sys_page_sz, 1 /* locked */ ,
354 sm->directory_vector_by_name = hash_create_string (0, sizeof (uword));
355 sm->shared_header = shared_header = memaddr;
357 shared_header->version = STAT_SEGMENT_VERSION;
358 shared_header->base = memaddr;
360 sm->stat_segment_lockp = clib_mem_alloc (sizeof (clib_spinlock_t));
361 clib_spinlock_init (sm->stat_segment_lockp);
363 oldheap = clib_mem_set_heap (sm->heap);
365 /* Set up the name to counter-vector hash table */
366 sm->directory_vector = 0;
368 shared_header->epoch = 1;
370 /* Scalar stats and node counters */
371 vec_validate (sm->directory_vector, STAT_COUNTERS - 1);
373 strcpy(sm->directory_vector[STAT_COUNTER_##E].name, #p "/" #n); \
374 sm->directory_vector[STAT_COUNTER_##E].type = STAT_DIR_TYPE_##t;
375 foreach_stat_segment_counter_name
377 /* Save the vector in the shared segment, for clients */
378 shared_header->directory_vector = sm->directory_vector;
380 clib_mem_set_heap (oldheap);
382 /* Total shared memory size */
383 clib_mem_usage_t usage;
384 clib_mem_get_heap_usage (sm->heap, &usage);
385 sm->directory_vector[STAT_COUNTER_MEM_STATSEG_TOTAL].value =
392 name_sort_cmp (void *a1, void *a2)
394 stat_segment_directory_entry_t *n1 = a1;
395 stat_segment_directory_entry_t *n2 = a2;
397 return strcmp ((char *) n1->name, (char *) n2->name);
401 format_stat_dir_entry (u8 * s, va_list * args)
403 stat_segment_directory_entry_t *ep =
404 va_arg (*args, stat_segment_directory_entry_t *);
408 format_string = "%-74s %-10s %10lld";
412 case STAT_DIR_TYPE_SCALAR_INDEX:
413 type_name = "ScalarPtr";
416 case STAT_DIR_TYPE_COUNTER_VECTOR_SIMPLE:
417 case STAT_DIR_TYPE_COUNTER_VECTOR_COMBINED:
418 type_name = "CMainPtr";
421 case STAT_DIR_TYPE_ERROR_INDEX:
422 type_name = "ErrIndex";
425 case STAT_DIR_TYPE_NAME_VECTOR:
426 type_name = "NameVector";
429 case STAT_DIR_TYPE_EMPTY:
434 type_name = "illegal!";
438 return format (s, format_string, ep->name, type_name, 0);
441 static clib_error_t *
442 show_stat_segment_command_fn (vlib_main_t * vm,
443 unformat_input_t * input,
444 vlib_cli_command_t * cmd)
446 stat_segment_main_t *sm = &stat_segment_main;
447 stat_segment_directory_entry_t *show_data;
452 if (unformat (input, "verbose"))
455 /* Lock even as reader, as this command doesn't handle epoch changes */
456 vlib_stat_segment_lock ();
457 show_data = vec_dup (sm->directory_vector);
458 vlib_stat_segment_unlock ();
460 vec_sort_with_function (show_data, name_sort_cmp);
462 vlib_cli_output (vm, "%-74s %10s %10s", "Name", "Type", "Value");
464 for (i = 0; i < vec_len (show_data); i++)
466 stat_segment_directory_entry_t *ep = vec_elt_at_index (show_data, i);
468 if (ep->type == STAT_DIR_TYPE_EMPTY)
471 vlib_cli_output (vm, "%-100U", format_stat_dir_entry,
472 vec_elt_at_index (show_data, i));
478 vlib_cli_output (vm, "%U", format_clib_mem_heap, sm->heap,
486 VLIB_CLI_COMMAND (show_stat_segment_command, static) =
488 .path = "show statistics segment",
489 .short_help = "show statistics segment [verbose]",
490 .function = show_stat_segment_command_fn,
495 * Node performance counters:
496 * total_calls [threads][node-index]
503 update_node_counters (stat_segment_main_t * sm)
505 vlib_main_t **stat_vms = 0;
506 vlib_node_t ***node_dups = 0;
508 static u32 no_max_nodes = 0;
510 vlib_node_get_nodes (0 /* vm, for barrier sync */ ,
511 (u32) ~ 0 /* all threads */ ,
512 1 /* include stats */ ,
513 0 /* barrier sync */ ,
514 &node_dups, &stat_vms);
516 u32 l = vec_len (node_dups[0]);
519 * Extend performance nodes if necessary
521 if (l > no_max_nodes)
523 void *oldheap = clib_mem_set_heap (sm->heap);
524 vlib_stat_segment_lock ();
526 stat_validate_counter_vector (&sm->directory_vector
527 [STAT_COUNTER_NODE_CLOCKS], l - 1);
528 stat_validate_counter_vector (&sm->directory_vector
529 [STAT_COUNTER_NODE_VECTORS], l - 1);
530 stat_validate_counter_vector (&sm->directory_vector
531 [STAT_COUNTER_NODE_CALLS], l - 1);
532 stat_validate_counter_vector (&sm->directory_vector
533 [STAT_COUNTER_NODE_SUSPENDS], l - 1);
535 vec_validate (sm->nodes, l - 1);
536 stat_segment_directory_entry_t *ep;
537 ep = &sm->directory_vector[STAT_COUNTER_NODE_NAMES];
538 ep->data = sm->nodes;
540 /* Update names dictionary */
541 vlib_node_t **nodes = node_dups[0];
543 for (i = 0; i < vec_len (nodes); i++)
545 vlib_node_t *n = nodes[i];
547 s = format (s, "%v%c", n->name, 0);
548 if (sm->nodes[n->index])
549 vec_free (sm->nodes[n->index]);
550 sm->nodes[n->index] = s;
552 vlib_stat_segment_unlock ();
553 clib_mem_set_heap (oldheap);
557 for (j = 0; j < vec_len (node_dups); j++)
559 vlib_node_t **nodes = node_dups[j];
561 for (i = 0; i < vec_len (nodes); i++)
563 counter_t **counters;
565 vlib_node_t *n = nodes[i];
567 counters = sm->directory_vector[STAT_COUNTER_NODE_CLOCKS].data;
569 c[n->index] = n->stats_total.clocks - n->stats_last_clear.clocks;
571 counters = sm->directory_vector[STAT_COUNTER_NODE_VECTORS].data;
573 c[n->index] = n->stats_total.vectors - n->stats_last_clear.vectors;
575 counters = sm->directory_vector[STAT_COUNTER_NODE_CALLS].data;
577 c[n->index] = n->stats_total.calls - n->stats_last_clear.calls;
579 counters = sm->directory_vector[STAT_COUNTER_NODE_SUSPENDS].data;
582 n->stats_total.suspends - n->stats_last_clear.suspends;
584 vec_free (node_dups[j]);
586 vec_free (node_dups);
591 do_stat_segment_updates (stat_segment_main_t * sm)
593 vlib_main_t *vm = vlib_mains[0];
597 vlib_main_t *this_vlib_main;
599 static int num_worker_threads_set;
602 * Set once at the beginning of time.
603 * Can't do this from the init routine, which happens before
604 * start_workers sets up vlib_mains...
606 if (PREDICT_FALSE (num_worker_threads_set == 0))
608 void *oldheap = clib_mem_set_heap (sm->heap);
609 vlib_stat_segment_lock ();
611 stat_validate_counter_vector (&sm->directory_vector
612 [STAT_COUNTER_VECTOR_RATE_PER_WORKER], 0);
613 num_worker_threads_set = 1;
614 vlib_stat_segment_unlock ();
615 clib_mem_set_heap (oldheap);
619 * Compute per-worker vector rates, and the average vector rate
624 for (i = 0; i < vec_len (vlib_mains); i++)
627 f64 this_vector_rate;
629 this_vlib_main = vlib_mains[i];
631 this_vector_rate = vlib_internal_node_vector_rate (this_vlib_main);
632 vlib_clear_internal_node_vector_rate (this_vlib_main);
634 vector_rate += this_vector_rate;
636 /* Set the per-worker rate */
637 stat_set_simple_counter (&sm->directory_vector
638 [STAT_COUNTER_VECTOR_RATE_PER_WORKER], i, 0,
642 /* And set the system average rate */
643 vector_rate /= (f64) (i > 1 ? i - 1 : 1);
645 sm->directory_vector[STAT_COUNTER_VECTOR_RATE].value = vector_rate;
648 * Compute the aggregate input rate
650 now = vlib_time_now (vm);
651 dt = now - sm->directory_vector[STAT_COUNTER_LAST_UPDATE].value;
652 input_packets = vnet_get_aggregate_rx_packets ();
653 sm->directory_vector[STAT_COUNTER_INPUT_RATE].value =
654 (f64) (input_packets - sm->last_input_packets) / dt;
655 sm->directory_vector[STAT_COUNTER_LAST_UPDATE].value = now;
656 sm->last_input_packets = input_packets;
657 sm->directory_vector[STAT_COUNTER_LAST_STATS_CLEAR].value =
658 vm->node_main.time_last_runtime_stats_clear;
660 /* Stats segment memory heap counter */
661 clib_mem_usage_t usage;
662 clib_mem_get_heap_usage (sm->heap, &usage);
663 sm->directory_vector[STAT_COUNTER_MEM_STATSEG_USED].value =
666 if (sm->node_counters_enabled)
667 update_node_counters (sm);
670 stat_segment_gauges_pool_t *g;
671 pool_foreach(g, sm->gauges,
673 g->fn(&sm->directory_vector[g->directory_index], g->caller_index);
677 /* Heartbeat, so clients detect we're still here */
678 sm->directory_vector[STAT_COUNTER_HEARTBEAT].value++;
682 * Accept connection on the socket and exchange the fd for the shared
685 static clib_error_t *
686 stats_socket_accept_ready (clib_file_t * uf)
688 stat_segment_main_t *sm = &stat_segment_main;
690 clib_socket_t client = { 0 };
692 err = clib_socket_accept (sm->socket, &client);
695 clib_error_report (err);
699 /* Send the fd across and close */
700 err = clib_socket_sendmsg (&client, 0, 0, &sm->memfd, 1);
702 clib_error_report (err);
703 clib_socket_close (&client);
708 static clib_error_t *
709 stats_segment_socket_init (void)
711 stat_segment_main_t *sm = &stat_segment_main;
713 clib_socket_t *s = clib_mem_alloc (sizeof (clib_socket_t));
715 memset (s, 0, sizeof (clib_socket_t));
716 s->config = (char *) sm->socket_name;
717 s->flags = CLIB_SOCKET_F_IS_SERVER | CLIB_SOCKET_F_SEQPACKET |
718 CLIB_SOCKET_F_ALLOW_GROUP_WRITE | CLIB_SOCKET_F_PASSCRED;
720 if ((error = clib_socket_init (s)))
723 clib_file_t template = { 0 };
724 template.read_function = stats_socket_accept_ready;
725 template.file_descriptor = s->fd;
726 template.description = format (0, "stats segment listener %s", s->config);
727 clib_file_add (&file_main, &template);
734 static clib_error_t *
735 stats_segment_socket_exit (vlib_main_t * vm)
738 * cleanup the listener socket on exit.
740 stat_segment_main_t *sm = &stat_segment_main;
741 unlink ((char *) sm->socket_name);
745 VLIB_MAIN_LOOP_EXIT_FUNCTION (stats_segment_socket_exit);
747 /* Overrides weak reference in vlib:node_cli.c */
749 vlib_get_stat_segment_update_rate (void)
751 return stat_segment_main.update_interval;
755 stat_segment_collector_process (vlib_main_t * vm, vlib_node_runtime_t * rt,
758 stat_segment_main_t *sm = &stat_segment_main;
762 do_stat_segment_updates (sm);
763 vlib_process_suspend (vm, sm->update_interval);
765 return 0; /* or not */
768 static clib_error_t *
769 statseg_init (vlib_main_t * vm)
771 stat_segment_main_t *sm = &stat_segment_main;
773 /* set default socket file name when statseg config stanza is empty. */
774 if (!vec_len (sm->socket_name))
775 sm->socket_name = format (0, "%s/%s%c", vlib_unix_get_runtime_dir (),
776 STAT_SEGMENT_SOCKET_FILENAME, 0);
777 return stats_segment_socket_init ();
781 VLIB_INIT_FUNCTION (statseg_init) =
783 .runs_after = VLIB_INITS("unix_input_init"),
788 stat_segment_register_gauge (u8 * name, stat_segment_update_fn update_fn,
791 stat_segment_main_t *sm = &stat_segment_main;
792 stat_segment_shared_header_t *shared_header = sm->shared_header;
794 stat_segment_directory_entry_t e;
795 stat_segment_gauges_pool_t *gauge;
797 ASSERT (shared_header);
799 u32 vector_index = lookup_hash_index (name);
801 if (vector_index != STAT_SEGMENT_INDEX_INVALID) /* Already registered */
802 return clib_error_return (0, "%v is already registered", name);
804 memset (&e, 0, sizeof (e));
805 e.type = STAT_DIR_TYPE_SCALAR_INDEX;
806 memcpy (e.name, name, vec_len (name));
808 oldheap = vlib_stats_push_heap (NULL);
809 vlib_stat_segment_lock ();
810 vector_index = vlib_stats_create_counter (&e, oldheap);
812 shared_header->directory_vector = sm->directory_vector;
814 vlib_stat_segment_unlock ();
815 clib_mem_set_heap (oldheap);
817 /* Back on our own heap */
818 pool_get (sm->gauges, gauge);
819 gauge->fn = update_fn;
820 gauge->caller_index = caller_index;
821 gauge->directory_index = vector_index;
827 stat_segment_register_state_counter (u8 * name, u32 * index)
829 stat_segment_main_t *sm = &stat_segment_main;
830 stat_segment_shared_header_t *shared_header = sm->shared_header;
832 stat_segment_directory_entry_t e;
834 ASSERT (shared_header);
835 ASSERT (vlib_get_thread_index () == 0);
837 u32 vector_index = lookup_hash_index (name);
839 if (vector_index != STAT_SEGMENT_INDEX_INVALID) /* Already registered */
840 return clib_error_return (0, "%v is already registered", name);
842 memset (&e, 0, sizeof (e));
843 e.type = STAT_DIR_TYPE_SCALAR_INDEX;
844 memcpy (e.name, name, vec_len (name));
846 oldheap = vlib_stats_push_heap (NULL);
847 vlib_stat_segment_lock ();
849 vector_index = vlib_stats_create_counter (&e, oldheap);
851 shared_header->directory_vector = sm->directory_vector;
853 vlib_stat_segment_unlock ();
854 clib_mem_set_heap (oldheap);
856 *index = vector_index;
861 stat_segment_deregister_state_counter (u32 index)
863 stat_segment_main_t *sm = &stat_segment_main;
864 stat_segment_shared_header_t *shared_header = sm->shared_header;
865 stat_segment_directory_entry_t *e;
868 ASSERT (shared_header);
870 if (index > vec_len (sm->directory_vector))
871 return clib_error_return (0, "%u index does not exist", index);
873 e = &sm->directory_vector[index];
874 if (e->type != STAT_DIR_TYPE_SCALAR_INDEX)
875 return clib_error_return (0, "%u index cannot be deleted", index);
877 oldheap = vlib_stats_push_heap (NULL);
878 vlib_stat_segment_lock ();
880 vlib_stats_delete_counter (index, oldheap);
882 vlib_stat_segment_unlock ();
883 clib_mem_set_heap (oldheap);
889 stat_segment_set_state_counter (u32 index, u64 value)
891 stat_segment_main_t *sm = &stat_segment_main;
893 ASSERT (index < vec_len (sm->directory_vector));
894 sm->directory_vector[index].index = value;
897 static clib_error_t *
898 statseg_config (vlib_main_t * vm, unformat_input_t * input)
900 stat_segment_main_t *sm = &stat_segment_main;
901 sm->update_interval = 10.0;
903 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
905 if (unformat (input, "socket-name %s", &sm->socket_name))
907 /* DEPRECATE: default (does nothing) */
908 else if (unformat (input, "default"))
910 else if (unformat (input, "size %U",
911 unformat_memory_size, &sm->memory_size))
913 else if (unformat (input, "page-size %U",
914 unformat_log2_page_size, &sm->log2_page_sz))
916 else if (unformat (input, "per-node-counters on"))
917 sm->node_counters_enabled = 1;
918 else if (unformat (input, "per-node-counters off"))
919 sm->node_counters_enabled = 0;
920 else if (unformat (input, "update-interval %f", &sm->update_interval))
923 return clib_error_return (0, "unknown input `%U'",
924 format_unformat_error, input);
928 * NULL-terminate socket name string
929 * clib_socket_init()->socket_config() use C str*
931 if (vec_len (sm->socket_name))
932 vec_terminate_c_string (sm->socket_name);
937 VLIB_EARLY_CONFIG_FUNCTION (statseg_config, "statseg");
939 static clib_error_t *
940 statseg_sw_interface_add_del (vnet_main_t * vnm, u32 sw_if_index, u32 is_add)
942 stat_segment_main_t *sm = &stat_segment_main;
944 void *oldheap = vlib_stats_push_heap (sm->interfaces);
945 vlib_stat_segment_lock ();
947 vec_validate (sm->interfaces, sw_if_index);
950 vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
951 vnet_sw_interface_t *si_sup =
952 vnet_get_sup_sw_interface (vnm, si->sw_if_index);
953 vnet_hw_interface_t *hi_sup;
955 ASSERT (si_sup->type == VNET_SW_INTERFACE_TYPE_HARDWARE);
956 hi_sup = vnet_get_hw_interface (vnm, si_sup->hw_if_index);
959 s = format (s, "%v", hi_sup->name);
960 if (si->type != VNET_SW_INTERFACE_TYPE_HARDWARE)
961 s = format (s, ".%d", si->sub.id);
962 s = format (s, "%c", 0);
963 sm->interfaces[sw_if_index] = s;
967 vec_free (sm->interfaces[sw_if_index]);
968 sm->interfaces[sw_if_index] = 0;
971 stat_segment_directory_entry_t *ep;
972 ep = &sm->directory_vector[STAT_COUNTER_INTERFACE_NAMES];
973 ep->data = sm->interfaces;
975 vlib_stat_segment_unlock ();
976 clib_mem_set_heap (oldheap);
981 VNET_SW_INTERFACE_ADD_DEL_FUNCTION (statseg_sw_interface_add_del);
984 VLIB_REGISTER_NODE (stat_segment_collector, static) =
986 .function = stat_segment_collector_process,
987 .name = "statseg-collector-process",
988 .type = VLIB_NODE_TYPE_PROCESS,
994 * fd.io coding-style-patch-verification: ON
997 * eval: (c-set-style "gnu")