FD.io VPP  v18.10-34-gcce845e
Vector Packet Processing
nsim.c
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1 /*
2  * nsim.c - skeleton vpp engine plug-in
3  *
4  * Copyright (c) <current-year> <your-organization>
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at:
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 
18 /**
19  * @file
20  * @brief Network Delay Simulator
21  */
22 /*? %%clicmd:group_label Network Delay Simulator %% ?*/
23 
24 #include <vnet/vnet.h>
25 #include <vnet/plugin/plugin.h>
26 #include <nsim/nsim.h>
27 
28 #include <vlibapi/api.h>
29 #include <vlibmemory/api.h>
30 #include <vpp/app/version.h>
31 
32 /* define message IDs */
33 #include <nsim/nsim_msg_enum.h>
34 
35 /* define message structures */
36 #define vl_typedefs
37 #include <nsim/nsim_all_api_h.h>
38 #undef vl_typedefs
39 
40 /* define generated endian-swappers */
41 #define vl_endianfun
42 #include <nsim/nsim_all_api_h.h>
43 #undef vl_endianfun
44 
45 /* instantiate all the print functions we know about */
46 #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
47 #define vl_printfun
48 #include <nsim/nsim_all_api_h.h>
49 #undef vl_printfun
50 
51 /* Get the API version number */
52 #define vl_api_version(n,v) static u32 api_version=(v);
53 #include <nsim/nsim_all_api_h.h>
54 #undef vl_api_version
55 
56 #define REPLY_MSG_ID_BASE nsm->msg_id_base
58 
60 
61 /* List of message types that this plugin understands */
62 
63 #define foreach_nsim_plugin_api_msg \
64 _(NSIM_ENABLE_DISABLE, nsim_enable_disable) \
65 _(NSIM_CONFIGURE, nsim_configure)
66 
67 /* Action function shared between message handler and debug CLI */
68 
69 int
70 nsim_enable_disable (nsim_main_t * nsm, u32 sw_if_index0,
71  u32 sw_if_index1, int enable_disable)
72 {
75  int rv = 0;
76 
77  if (nsm->is_configured == 0)
78  return VNET_API_ERROR_CANNOT_ENABLE_DISABLE_FEATURE;
79 
80  /* Utterly wrong? */
82  sw_if_index0))
83  return VNET_API_ERROR_INVALID_SW_IF_INDEX;
84 
86  sw_if_index1))
87  return VNET_API_ERROR_INVALID_SW_IF_INDEX;
88 
89  /* Not a physical port? */
90  sw = vnet_get_sw_interface (nsm->vnet_main, sw_if_index0);
92  return VNET_API_ERROR_INVALID_SW_IF_INDEX;
93 
94  sw = vnet_get_sw_interface (nsm->vnet_main, sw_if_index1);
96  return VNET_API_ERROR_INVALID_SW_IF_INDEX;
97 
98  /* Add graph arcs for the input / wheel scraper node */
99  hw = vnet_get_hw_interface (nsm->vnet_main, sw_if_index0);
100  nsm->output_next_index0 =
103 
104  hw = vnet_get_hw_interface (nsm->vnet_main, sw_if_index1);
105  nsm->output_next_index1 =
108 
109  nsm->sw_if_index0 = sw_if_index0;
110  nsm->sw_if_index1 = sw_if_index1;
111 
112  vnet_feature_enable_disable ("device-input", "nsim",
113  sw_if_index0, enable_disable, 0, 0);
114  vnet_feature_enable_disable ("device-input", "nsim",
115  sw_if_index1, enable_disable, 0, 0);
116 
117  return rv;
118 }
119 
120 static int
121 nsim_configure (nsim_main_t * nsm, f64 bandwidth, f64 delay, f64 packet_size)
122 {
123  u64 total_buffer_size_in_bytes, per_worker_buffer_size;
124  u64 wheel_slots_per_worker;
125  int i;
126  int num_workers = vlib_num_workers ();
127  u32 pagesize = getpagesize ();
128  vlib_main_t *vm = nsm->vlib_main;
129 
130  if (bandwidth == 0.0)
131  return VNET_API_ERROR_INVALID_VALUE;
132 
133  if (delay == 0.0)
134  return VNET_API_ERROR_INVALID_VALUE_2;
135 
136  if (packet_size < 64.0 || packet_size > (f64) WHEEL_ENTRY_DATA_SIZE)
137  return VNET_API_ERROR_INVALID_VALUE_3;
138 
139  /* Toss the old wheel(s)... */
140  if (nsm->is_configured)
141  {
142  for (i = 0; i < vec_len (nsm->wheel_by_thread); i++)
143  {
144  nsim_wheel_t *wp = nsm->wheel_by_thread[i];
145  munmap (wp, nsm->mmap_size);
146  nsm->wheel_by_thread[i] = 0;
147  }
148  }
149 
150  nsm->delay = delay;
151 
152  /* delay in seconds, bandwidth in bits/sec */
153  total_buffer_size_in_bytes = (u32) ((delay * bandwidth) / 8.0) + 0.5;
154 
155  /*
156  * Work out how much buffering each worker needs, assuming decent
157  * RSS behavior.
158  */
159  if (num_workers)
160  per_worker_buffer_size = total_buffer_size_in_bytes / num_workers;
161  else
162  per_worker_buffer_size = total_buffer_size_in_bytes;
163 
164  wheel_slots_per_worker = per_worker_buffer_size / packet_size;
165  wheel_slots_per_worker++;
166 
167  /* Save these for the show command */
168  nsm->bandwidth = bandwidth;
169  nsm->packet_size = packet_size;
170 
171  vec_validate (nsm->wheel_by_thread, num_workers);
172  vec_validate (nsm->buffer_indices_by_thread, num_workers);
173 
174  /* Initialize the output scheduler wheels */
175  for (i = num_workers ? 1 : 0; i < num_workers + 1; i++)
176  {
177  nsim_wheel_t *wp;
178 
179  nsm->mmap_size = sizeof (nsim_wheel_t)
180  + wheel_slots_per_worker * sizeof (nsim_wheel_entry_t);
181 
182  nsm->mmap_size += pagesize - 1;
183  nsm->mmap_size &= ~(pagesize - 1);
184 
185  wp = clib_mem_vm_alloc (nsm->mmap_size);
186  ASSERT (wp != 0);
187  wp->wheel_size = wheel_slots_per_worker;
188  wp->cursize = 0;
189  wp->head = 0;
190  wp->tail = 0;
191  wp->entries = (void *) (wp + 1);
192  nsm->wheel_by_thread[i] = wp;
194  _vec_len (nsm->buffer_indices_by_thread[i]) = 0;
195  }
196 
198 
199  /* turn on the ring scrapers */
200  for (i = num_workers ? 1 : 0; i < num_workers + 1; i++)
201  {
202  vlib_main_t *this_vm = vlib_mains[i];
203 
204  vlib_node_set_state (this_vm, nsim_input_node.index,
205  VLIB_NODE_STATE_POLLING);
206  }
207 
209 
210  nsm->is_configured = 1;
211  return 0;
212 }
213 
214 /*
215  * enable or disable the cross-connect
216  */
217 static clib_error_t *
219  unformat_input_t * input,
220  vlib_cli_command_t * cmd)
221 {
222  nsim_main_t *nsm = &nsim_main;
223  u32 sw_if_index0 = ~0;
224  u32 sw_if_index1 = ~0;
225  int enable_disable = 1;
226  u32 tmp;
227  int rv;
228 
230  {
231  if (unformat (input, "disable"))
232  enable_disable = 0;
233  else if (unformat (input, "%U", unformat_vnet_sw_interface,
234  nsm->vnet_main, &tmp))
235  {
236  if (sw_if_index0 == ~0)
237  sw_if_index0 = tmp;
238  else
239  sw_if_index1 = tmp;
240  }
241  else
242  break;
243  }
244 
245  if (sw_if_index0 == ~0 || sw_if_index1 == ~0)
246  return clib_error_return (0, "Please specify two interfaces...");
247 
248  rv = nsim_enable_disable (nsm, sw_if_index0, sw_if_index1, enable_disable);
249 
250  switch (rv)
251  {
252  case 0:
253  break;
254 
255  case VNET_API_ERROR_CANNOT_ENABLE_DISABLE_FEATURE:
256  return clib_error_return (0, "Not configured, please 'set nsim' first");
257 
258  case VNET_API_ERROR_INVALID_SW_IF_INDEX:
259  return clib_error_return
260  (0, "Invalid interface, only works on physical ports");
261  break;
262 
263  case VNET_API_ERROR_UNIMPLEMENTED:
264  return clib_error_return (0,
265  "Device driver doesn't support redirection");
266  break;
267 
268  default:
269  return clib_error_return (0, "nsim_enable_disable returned %d", rv);
270  }
271  return 0;
272 }
273 
274 /*?
275  * Enable or disable network simulation cross-connect on two interfaces
276  * The network simulator must have already been configured, see
277  * the "nsim_configure" command.
278  *
279  * Place the interfaces into a bridge group, to ensure that
280  * interfaces are in promiscuous mode.
281  *
282  * @cliexpar
283  * To enable or disable network simulation cross-connect
284  * @clistart
285  * nsim enable-disable TenGigabitEthernet2/0/0 TenGigabitEthernet2/0
286  * nsim enable-disable TenGigabitEthernet2/0/0 TenGigabitEthernet2/0 disable
287  * @cliend
288  * @cliexcmd{nsim enable-disable <intfc> <intfc> [disable]}
289 ?*/
290 /* *INDENT-OFF* */
291 VLIB_CLI_COMMAND (nsim_enable_disable_command, static) =
292 {
293  .path = "nsim enable-disable",
294  .short_help =
295  "nsim enable-disable <interface-name-1> <interface-name-2> [disable]",
296  .function = nsim_enable_disable_command_fn,
297 };
298 /* *INDENT-ON* */
299 
300 /* API message handler */
303 {
304  vl_api_nsim_enable_disable_reply_t *rmp;
305  nsim_main_t *nsm = &nsim_main;
306  int rv;
307 
308  rv = nsim_enable_disable (nsm, ntohl (mp->sw_if_index0),
309  ntohl (mp->sw_if_index1),
310  (int) (mp->enable_disable));
311 
312  REPLY_MACRO (VL_API_NSIM_ENABLE_DISABLE_REPLY);
313 }
314 
315 /* API message handler */
316 static void
318 {
319  vl_api_nsim_configure_reply_t *rmp;
320  nsim_main_t *nsm = &nsim_main;
321  f64 delay, bandwidth, packet_size;
322  int rv;
323 
324  delay = ((f64) (ntohl (mp->delay_in_usec))) * 1e-6;
325  bandwidth = (f64) (clib_net_to_host_u64 (mp->bandwidth_in_bits_per_second));
326  packet_size = (f64) (ntohl (mp->average_packet_size));
327 
328  rv = nsim_configure (nsm, bandwidth, delay, packet_size);
329 
330  REPLY_MACRO (VL_API_NSIM_CONFIGURE_REPLY);
331 }
332 
333 
334 /* Set up the API message handling tables */
335 static clib_error_t *
337 {
338  nsim_main_t *nsm = &nsim_main;
339 #define _(N,n) \
340  vl_msg_api_set_handlers((VL_API_##N + nsm->msg_id_base), \
341  #n, \
342  vl_api_##n##_t_handler, \
343  vl_noop_handler, \
344  vl_api_##n##_t_endian, \
345  vl_api_##n##_t_print, \
346  sizeof(vl_api_##n##_t), 1);
348 #undef _
349 
350  return 0;
351 }
352 
353 #define vl_msg_name_crc_list
354 #include <nsim/nsim_all_api_h.h>
355 #undef vl_msg_name_crc_list
356 
357 static void
359 {
360 #define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n #crc, id + nsm->msg_id_base);
361  foreach_vl_msg_name_crc_nsim;
362 #undef _
363 }
364 
365 static clib_error_t *
367 {
368  nsim_main_t *nsm = &nsim_main;
369  clib_error_t *error = 0;
370  u8 *name;
371 
372  nsm->vlib_main = vm;
373  nsm->vnet_main = vnet_get_main ();
374 
375  name = format (0, "nsim_%08x%c", api_version, 0);
376 
377  /* Ask for a correctly-sized block of API message decode slots */
379  ((char *) name, VL_MSG_FIRST_AVAILABLE);
380 
381  error = nsim_plugin_api_hookup (vm);
382 
383  /* Add our API messages to the global name_crc hash table */
385 
386  vec_free (name);
387 
388  return error;
389 }
390 
392 
393 /* *INDENT-OFF* */
394 VNET_FEATURE_INIT (nsim, static) =
395 {
396  .arc_name = "device-input",
397  .node_name = "nsim",
398  .runs_before = VNET_FEATURES ("ethernet-input"),
399 };
400 /* *INDENT-ON */
401 
402 /* *INDENT-OFF* */
404 {
405  .version = VPP_BUILD_VER,
406  .description = "network delay simulator plugin",
407 };
408 /* *INDENT-ON* */
409 
410 static uword
411 unformat_delay (unformat_input_t * input, va_list * args)
412 {
413  f64 *result = va_arg (*args, f64 *);
414  f64 tmp;
415 
416  if (unformat (input, "%f us", &tmp))
417  *result = tmp * 1e-6;
418  else if (unformat (input, "%f ms", &tmp))
419  *result = tmp * 1e-3;
420  else if (unformat (input, "%f sec", &tmp))
421  *result = tmp;
422  else
423  return 0;
424 
425  return 1;
426 }
427 
428 static uword
429 unformat_bandwidth (unformat_input_t * input, va_list * args)
430 {
431  f64 *result = va_arg (*args, f64 *);
432  f64 tmp;
433 
434  if (unformat (input, "%f gbit", &tmp))
435  *result = tmp * 1e9;
436  else if (unformat (input, "%f gbyte", &tmp))
437  *result = tmp * 8e9;
438  else
439  return 0;
440  return 1;
441 }
442 
443 static clib_error_t *
445  unformat_input_t * input, vlib_cli_command_t * cmd)
446 {
447  nsim_main_t *nsm = &nsim_main;
448  f64 delay, bandwidth;
449  f64 packet_size = 1500.0;
450  u32 num_workers = vlib_num_workers ();
451  int rv;
452 
454  {
455  if (unformat (input, "delay %U", unformat_delay, &delay))
456  ;
457  else if (unformat (input, "bandwidth %U", unformat_bandwidth,
458  &bandwidth))
459  ;
460  else if (unformat (input, "packet-size %f", &packet_size))
461  ;
462  else
463  break;
464  }
465 
466  rv = nsim_configure (nsm, bandwidth, delay, packet_size);
467 
468  switch (rv)
469  {
470  case VNET_API_ERROR_INVALID_VALUE:
471  return clib_error_return (0, "invalid bandwidth %.2f", bandwidth);
472 
473  case VNET_API_ERROR_INVALID_VALUE_2:
474  return clib_error_return (0, "invalid delay %.2f", delay);
475 
476  case VNET_API_ERROR_INVALID_VALUE_3:
477  return clib_error_return (0, "invalid packet size %.2f", packet_size);
478 
479  default:
480  return clib_error_return (0, "error %d", rv);
481 
482  case 0:
483  break;
484  }
485 
486  vlib_cli_output (vm, "Configured link delay %.2f ms, %.2f ms round-trip",
487  nsm->delay * 1e3, 2.0 * nsm->delay * 1e3);
488 
489  if (num_workers)
490  vlib_cli_output (vm, "Sim uses %llu bytes per thread, %llu bytes total",
491  nsm->mmap_size, nsm->mmap_size * num_workers);
492  else
493  vlib_cli_output (vm, "Sim uses %llu bytes total", nsm->mmap_size);
494 
495  return 0;
496 }
497 
498 /*?
499  * Configure the network simulation cross-connect
500  * Once the simulator is configured, use the "nsim enable-disable" command
501  * to set up a cross-connect with the supplied delay characteristics.
502  *
503  * The cross connect configuration may be changed without restarting vpp
504  * but it is good practice to shut down the interfaces.
505  *
506  * @cliexpar
507  * To configure the network delay simulator:
508  * @clistart
509  * set nsim delay 10.0 ms bandwidth 5.5 gbit packet-size 128
510  *
511  * @cliend
512  * @cliexcmd{set nsim delay <nn> bandwidth <bb> packet-size <nn>}
513 ?*/
514 /* *INDENT-OFF* */
515 VLIB_CLI_COMMAND (set_nsim_command, static) =
516 {
517  .path = "set nsim",
518  .short_help = "set nsim delay <time> bandwidth <bps> packet-size <nbytes>",
519  .function = set_nsim_command_fn,
520 };
521 /* *INDENT-ON*/
522 
523 
524 static clib_error_t *
526  unformat_input_t * input, vlib_cli_command_t * cmd)
527 {
528  nsim_main_t *nsm = &nsim_main;
529  u32 num_workers = vlib_num_workers ();
530  int verbose = 0;
531 
532  if (nsm->is_configured == 0)
533  return clib_error_return (0, "Network simulator not configured");
534 
535  if (nsm->sw_if_index0 == 0)
536  return clib_error_return (0, "Network simulator not enabled");
537 
538  if (unformat (input, "verbose"))
539  verbose = 1;
540 
541  vlib_cli_output (vm, "Network simulator cross-connects %U and %U",
543  nsm->vnet_main, nsm->sw_if_index0,
545  nsm->vnet_main, nsm->sw_if_index1);
546 
547  vlib_cli_output (vm,
548  "...inserting link delay of %.2f ms, %.2f ms round-trip",
549  nsm->delay * 1e3, 2.0 * nsm->delay * 1e3);
550 
551  if (verbose)
552  {
553 
554  vlib_cli_output (vm, " Configured bandwidth: %.2f gbit/sec",
555  nsm->bandwidth / 1e9);
556  vlib_cli_output (vm, " Configured packet size: %f", nsm->packet_size);
557  if (num_workers)
559  (vm, " Sim uses %llu bytes per thread, %llu bytes total",
560  nsm->mmap_size, nsm->mmap_size * num_workers);
561  else
562  vlib_cli_output (vm, " Sim uses %llu bytes total", nsm->mmap_size);
563  }
564 
565  return 0;
566 }
567 
568 /*?
569  * Display state info for the network delay simulator.
570  *
571  * @cliexpar
572  * To display the state of the network simulator
573  * @clistart
574  * show nsim verbose
575  * Network simulator cross-connects TenGigabitEthernet2/0/0 and TenGigabitEthernet2/0/1
576  * ...inserting link delay of 10.00 ms, 20.00 ms round-trip
577  * Configured bandwidth: 10.10 gbit/sec
578  * Configured packet size: 128
579  * Sim uses 157814784 bytes total
580  * @cliend
581  * @cliexcmd{show nsim}
582 ?*/
583 
584 /* *INDENT-OFF* */
585 VLIB_CLI_COMMAND (show_nsim_command, static) =
586 {
587  .path = "show nsim",
588  .short_help = "Display network delay simulator configuration",
589  .function = show_nsim_command_fn,
590 };
591 /* *INDENT-ON* */
592 
593 /*
594  * fd.io coding-style-patch-verification: ON
595  *
596  * Local Variables:
597  * eval: (c-set-style "gnu")
598  * End:
599  */
#define vec_validate(V, I)
Make sure vector is long enough for given index (no header, unspecified alignment) ...
Definition: vec.h:437
f64 packet_size
Definition: nsim.h:65
static clib_error_t * nsim_init(vlib_main_t *vm)
Definition: nsim.c:366
#define WHEEL_ENTRY_DATA_SIZE
Definition: nsim.h:28
vnet_main_t * vnet_get_main(void)
Definition: misc.c:47
vnet_interface_main_t interface_main
Definition: vnet.h:56
u16 msg_id_base
Definition: nsim.h:52
unsigned long u64
Definition: types.h:89
Definition: nsim.h:30
static vnet_hw_interface_t * vnet_get_hw_interface(vnet_main_t *vnm, u32 hw_if_index)
static int nsim_configure(nsim_main_t *nsm, f64 bandwidth, f64 delay, f64 packet_size)
Definition: nsim.c:121
int i
static vnet_sw_interface_t * vnet_get_sw_interface(vnet_main_t *vnm, u32 sw_if_index)
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:419
unformat_function_t unformat_vnet_sw_interface
configure the network delay simulation cross-connect
Definition: nsim.api:38
u32 output_next_index0
Definition: nsim.h:56
vlib_main_t ** vlib_mains
Definition: buffer.c:303
format_function_t format_vnet_sw_if_index_name
static uword vlib_node_add_next(vlib_main_t *vm, uword node, uword next_node)
Definition: node_funcs.h:1118
unsigned char u8
Definition: types.h:56
double f64
Definition: types.h:142
#define vlib_worker_thread_barrier_sync(X)
Definition: threads.h:204
u32 cursize
Definition: nsim.h:42
#define VLIB_INIT_FUNCTION(x)
Definition: init.h:163
vnet_main_t * vnet_main
Definition: nsim.h:74
int is_configured
Definition: nsim.h:70
#define clib_error_return(e, args...)
Definition: error.h:99
static uword unformat_delay(unformat_input_t *input, va_list *args)
Definition: nsim.c:411
unsigned int u32
Definition: types.h:88
#define VLIB_FRAME_SIZE
Definition: node.h:382
u64 mmap_size
Definition: nsim.h:67
struct _unformat_input_t unformat_input_t
VLIB_PLUGIN_REGISTER()
#define REPLY_MACRO(t)
u32 tail
Definition: nsim.h:44
u8 name[64]
Definition: memclnt.api:151
VNET_FEATURE_INIT(nsim, static)
API main structure, used by both vpp and binary API clients.
Definition: api_common.h:201
u32 sw_if_index1
Definition: nsim.h:55
int nsim_enable_disable(nsim_main_t *nsm, u32 sw_if_index0, u32 sw_if_index1, int enable_disable)
Definition: nsim.c:70
static void vl_api_nsim_configure_t_handler(vl_api_nsim_configure_t *mp)
Definition: nsim.c:317
#define UNFORMAT_END_OF_INPUT
Definition: format.h:144
vlib_main_t * vm
Definition: buffer.c:294
vlib_node_registration_t nsim_input_node
(constructor) VLIB_REGISTER_NODE (nsim_input_node)
Definition: nsim_input.c:204
#define vec_free(V)
Free vector&#39;s memory (no header).
Definition: vec.h:339
nsim_wheel_entry_t * entries
Definition: nsim.h:45
#define pool_is_free_index(P, I)
Use free bitmap to query whether given index is free.
Definition: pool.h:271
#define foreach_nsim_plugin_api_msg
Definition: nsim.c:63
u32 head
Definition: nsim.h:43
#define VLIB_CLI_COMMAND(x,...)
Definition: cli.h:155
vlib_main_t * vlib_main
Definition: nsim.h:73
#define ASSERT(truth)
u64 bandwidth_in_bits_per_second
Definition: nsim.api:49
nsim_wheel_t ** wheel_by_thread
Definition: nsim.h:59
static void vlib_node_set_state(vlib_main_t *vm, u32 node_index, vlib_node_state_t new_state)
Set node dispatch state.
Definition: node_funcs.h:147
enable / disable the network delay simulation cross-connect
Definition: nsim.api:15
#define VNET_FEATURES(...)
Definition: feature.h:386
static void vl_api_nsim_enable_disable_t_handler(vl_api_nsim_enable_disable_t *mp)
Definition: nsim.c:302
u32 sw_if_index0
Definition: nsim.h:55
f64 bandwidth
Definition: nsim.h:64
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
u64 uword
Definition: types.h:112
vnet_sw_interface_t * sw_interfaces
Definition: interface.h:846
u32 ** buffer_indices_by_thread
Definition: nsim.h:60
static uword unformat_bandwidth(unformat_input_t *input, va_list *args)
Definition: nsim.c:429
f64 delay
Definition: nsim.h:63
static clib_error_t * nsim_enable_disable_command_fn(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: nsim.c:218
void vlib_worker_thread_barrier_release(vlib_main_t *vm)
Definition: threads.c:1455
vnet_sw_interface_type_t type
Definition: interface.h:718
static u32 vlib_num_workers()
Definition: threads.h:365
static clib_error_t * show_nsim_command_fn(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: nsim.c:525
static void * clib_mem_vm_alloc(uword size)
Definition: mem.h:308
u32 wheel_size
Definition: nsim.h:41
api_main_t api_main
Definition: api_shared.c:35
void vlib_cli_output(vlib_main_t *vm, char *fmt,...)
Definition: cli.c:725
u32 output_next_index1
Definition: nsim.h:56
nsim_main_t nsim_main
Definition: nsim.c:59
uword unformat(unformat_input_t *i, const char *fmt,...)
Definition: unformat.c:972
int vnet_feature_enable_disable(const char *arc_name, const char *node_name, u32 sw_if_index, int enable_disable, void *feature_config, u32 n_feature_config_bytes)
Definition: feature.c:233
static uword unformat_check_input(unformat_input_t *i)
Definition: format.h:170
static clib_error_t * set_nsim_command_fn(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: nsim.c:444
u16 vl_msg_api_get_msg_ids(const char *name, int n)
Definition: api_shared.c:865
static void setup_message_id_table(nsim_main_t *nsm, api_main_t *am)
Definition: nsim.c:358
static clib_error_t * nsim_plugin_api_hookup(vlib_main_t *vm)
Definition: nsim.c:336