FD.io VPP  v20.05.1-6-gf53edbc3b
Vector Packet Processing
stream.c
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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  * pg_stream.c: packet generator streams
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 #include <vnet/vnet.h>
41 #include <vnet/pg/pg.h>
42 #include <vnet/ethernet/ethernet.h>
43 #include <vnet/ip/ip.h>
44 #include <vnet/mpls/mpls.h>
45 #include <vnet/devices/devices.h>
46 
47 /* Mark stream active or inactive. */
48 void
49 pg_stream_enable_disable (pg_main_t * pg, pg_stream_t * s, int want_enabled)
50 {
51  vlib_main_t *vm;
52  vnet_main_t *vnm = vnet_get_main ();
54 
55  want_enabled = want_enabled != 0;
56 
57  if (pg_stream_is_enabled (s) == want_enabled)
58  /* No change necessary. */
59  return;
60 
61  if (want_enabled)
62  s->n_packets_generated = 0;
63 
64  /* Toggle enabled flag. */
66 
67  ASSERT (!pool_is_free (pg->streams, s));
68 
72  want_enabled);
73 
74  if (want_enabled)
75  {
78 
81  }
82 
83  if (vlib_num_workers ())
85  else
86  vm = vlib_get_main ();
87 
90  (pg->enabled_streams[s->worker_index]) ?
91  VLIB_NODE_STATE_DISABLED : VLIB_NODE_STATE_POLLING));
92 
93  s->packet_accumulator = 0;
94  s->time_last_generate = 0;
95 }
96 
97 static u8 *
98 format_pg_output_trace (u8 * s, va_list * va)
99 {
100  CLIB_UNUSED (vlib_main_t * vm) = va_arg (*va, vlib_main_t *);
101  CLIB_UNUSED (vlib_node_t * node) = va_arg (*va, vlib_node_t *);
102  pg_output_trace_t *t = va_arg (*va, pg_output_trace_t *);
103  u32 indent = format_get_indent (s);
104 
105  s = format (s, "%Ubuffer 0x%x: %U",
106  format_white_space, indent,
108 
109  s = format (s, "\n%U%U", format_white_space, indent,
111  sizeof (t->buffer.pre_data));
112 
113  return s;
114 }
115 
116 static u8 *
117 format_pg_interface_name (u8 * s, va_list * args)
118 {
119  pg_main_t *pg = &pg_main;
120  u32 if_index = va_arg (*args, u32);
121  pg_interface_t *pi;
122 
123  pi = pool_elt_at_index (pg->interfaces, if_index);
124  s = format (s, "pg%d", pi->id);
125 
126  return s;
127 }
128 
129 static clib_error_t *
131 {
132  u32 hw_flags = 0;
133 
136 
137  vnet_hw_interface_set_flags (vnm, hw_if_index, hw_flags);
138 
139  return 0;
140 }
141 
142 /* *INDENT-OFF* */
144  .name = "pg",
145  .tx_function = pg_output,
146  .format_device_name = format_pg_interface_name,
147  .format_tx_trace = format_pg_output_trace,
148  .admin_up_down_function = pg_interface_admin_up_down,
149 };
150 /* *INDENT-ON* */
151 
152 static u8 *
155  vnet_link_t link_type, const void *dst_address)
156 {
157  u8 *rewrite = NULL;
158  u16 *h;
159 
160  vec_validate (rewrite, sizeof (*h) - 1);
161  h = (u16 *) rewrite;
162  h[0] = clib_host_to_net_u16 (vnet_link_to_l3_proto (link_type));
163 
164  return (rewrite);
165 }
166 
167 /* *INDENT-OFF* */
168 VNET_HW_INTERFACE_CLASS (pg_interface_class,static) = {
169  .name = "Packet generator",
170  .build_rewrite = pg_build_rewrite,
171 };
172 /* *INDENT-ON* */
173 
174 static u32
176 {
177  /* nothing for now */
178  return 0;
179 }
180 
181 u32
182 pg_interface_add_or_get (pg_main_t * pg, uword if_id, u8 gso_enabled,
183  u32 gso_size)
184 {
185  vnet_main_t *vnm = vnet_get_main ();
187  pg_interface_t *pi;
189  uword *p;
190  u32 i;
191 
192  p = hash_get (pg->if_index_by_if_id, if_id);
193 
194  if (p)
195  {
196  return p[0];
197  }
198  else
199  {
200  u8 hw_addr[6];
201  f64 now = vlib_time_now (vm);
202  u32 rnd;
203 
204  pool_get (pg->interfaces, pi);
205  i = pi - pg->interfaces;
206 
207  rnd = (u32) (now * 1e6);
208  rnd = random_u32 (&rnd);
209  clib_memcpy_fast (hw_addr + 2, &rnd, sizeof (rnd));
210  hw_addr[0] = 2;
211  hw_addr[1] = 0xfe;
212 
213  pi->id = if_id;
214  ethernet_register_interface (vnm, pg_dev_class.index, i, hw_addr,
216  hi = vnet_get_hw_interface (vnm, pi->hw_if_index);
217  if (gso_enabled)
218  {
220  pi->gso_enabled = 1;
221  pi->gso_size = gso_size;
222  }
223  pi->sw_if_index = hi->sw_if_index;
224 
225  hash_set (pg->if_index_by_if_id, if_id, i);
226 
227  if (vlib_num_workers ())
228  {
231  *pi->lockp = 0;
232  }
233  }
234 
235  return i;
236 }
237 
238 static void
240  pg_edit_group_t * g, pg_edit_t * e, uword want_commit)
241 {
242  u32 i, i0, i1, mask, n_bits_left;
243  u8 *v, *s, *m;
244 
245  i0 = e->lsb_bit_offset / BITS (u8);
246 
247  /* Make space for edit in value and mask. */
250 
251  if (e->type != PG_EDIT_FIXED)
252  {
253  switch (e->type)
254  {
255  case PG_EDIT_RANDOM:
256  case PG_EDIT_INCREMENT:
258  break;
259 
260  default:
261  break;
262  }
263 
264  if (want_commit)
265  {
267  vec_add1 (g->non_fixed_edits, e[0]);
268  }
269  return;
270  }
271 
272  s = g->fixed_packet_data;
273  m = g->fixed_packet_data_mask;
274 
275  n_bits_left = e->n_bits;
276  i0 = e->lsb_bit_offset / BITS (u8);
277  i1 = e->lsb_bit_offset % BITS (u8);
278 
279  v = e->values[PG_EDIT_LO];
280  i = pg_edit_n_alloc_bytes (e) - 1;
281 
282  /* Odd low order bits?. */
283  if (i1 != 0 && n_bits_left > 0)
284  {
285  u32 n = clib_min (n_bits_left, BITS (u8) - i1);
286 
287  mask = pow2_mask (n) << i1;
288 
289  ASSERT (i0 < vec_len (s));
290  ASSERT (i < vec_len (v));
291  ASSERT ((v[i] & ~mask) == 0);
292 
293  s[i0] |= v[i] & mask;
294  m[i0] |= mask;
295 
296  i0--;
297  i--;
298  n_bits_left -= n;
299  }
300 
301  /* Even bytes. */
302  while (n_bits_left >= 8)
303  {
304  ASSERT (i0 < vec_len (s));
305  ASSERT (i < vec_len (v));
306 
307  s[i0] = v[i];
308  m[i0] = ~0;
309 
310  i0--;
311  i--;
312  n_bits_left -= 8;
313  }
314 
315  /* Odd high order bits. */
316  if (n_bits_left > 0)
317  {
318  mask = pow2_mask (n_bits_left);
319 
320  ASSERT (i0 < vec_len (s));
321  ASSERT (i < vec_len (v));
322  ASSERT ((v[i] & ~mask) == 0);
323 
324  s[i0] |= v[i] & mask;
325  m[i0] |= mask;
326  }
327 
328  if (want_commit)
329  pg_edit_free (e);
330 }
331 
332 void
334  u32 group_index,
335  void *packet_data,
336  void *packet_data_mask)
337 {
338  pg_edit_group_t *g = pg_stream_get_group (s, group_index);
339  pg_edit_t *e;
340 
341  vec_foreach (e, g->edits) do_edit (s, g, e, /* want_commit */ 0);
342 
343  clib_memcpy_fast (packet_data, g->fixed_packet_data,
345  clib_memcpy_fast (packet_data_mask, g->fixed_packet_data_mask,
347 }
348 
349 static void
351 {
352  pg_edit_group_t *g;
353  pg_edit_t *e;
354  word i;
355 
356  for (i = vec_len (s->edit_groups) - 1; i >= 0; i--)
357  {
358  g = vec_elt_at_index (s->edit_groups, i);
359  vec_foreach (e, g->edits) do_edit (s, g, e, /* want_commit */ 1);
360 
361  /* All edits have either been performed or added to
362  g->non_fixed_edits. So, we can delete the vector. */
363  vec_free (g->edits);
364  }
365 
368  vec_foreach (g, s->edit_groups)
369  {
370  int i;
372 
373  /* Relocate and copy non-fixed edits from group to stream. */
376 
377  for (i = 0; i < vec_len (g->non_fixed_edits); i++)
379 
381  g->non_fixed_edits, vec_len (g->non_fixed_edits));
383 
385  g->fixed_packet_data, vec_len (g->fixed_packet_data));
388  }
389 }
390 
391 void
393 {
395  pg_stream_t *s;
396  uword *p;
397 
398  if (!pg->stream_index_by_name)
400  = hash_create_vec (0, sizeof (s->name[0]), sizeof (uword));
401 
402  /* Delete any old stream with the same name. */
403  if (s_init->name
404  && (p = hash_get_mem (pg->stream_index_by_name, s_init->name)))
405  {
406  pg_stream_del (pg, p[0]);
407  }
408 
409  pool_get (pg->streams, s);
410  s[0] = s_init[0];
411 
412  /* Give it a name. */
413  if (!s->name)
414  s->name = format (0, "stream%d", s - pg->streams);
415  else
416  s->name = vec_dup (s->name);
417 
418  hash_set_mem (pg->stream_index_by_name, s->name, s - pg->streams);
419 
420  /* Get fixed part of buffer data. */
421  if (s->edit_groups)
423 
424  /* Determine packet size. */
425  switch (s->packet_size_edit_type)
426  {
427  case PG_EDIT_INCREMENT:
428  case PG_EDIT_RANDOM:
429  if (s->min_packet_bytes == s->max_packet_bytes)
431  break;
432 
433  default:
434  /* Get packet size from fixed edits. */
436  if (!s->replay_packet_templates)
439  break;
440  }
441 
443 
444  {
445  int n;
446 
448  n = s->max_packet_bytes / s->buffer_bytes;
449  n += (s->max_packet_bytes % s->buffer_bytes) != 0;
450 
451  vec_resize (s->buffer_indices, n);
452  }
453 
454  /* Find an interface to use. */
455  s->pg_if_index =
456  pg_interface_add_or_get (pg, s->if_id, 0 /* gso_enabled */ ,
457  0 /* gso_size */ );
458 
459  if (s->sw_if_index[VLIB_RX] == ~0)
460  {
462  /*
463  * Default the RX interface if unset. It's a bad mistake to
464  * set [VLIB_TX] prior to ip lookup, since the ip lookup code
465  * interprets [VLIB_TX] as a fib index...
466  */
467  s->sw_if_index[VLIB_RX] = pi->sw_if_index;
468  }
469 
470  /* Connect the graph. */
472  s->node_index);
473 }
474 
475 void
477 {
478  pg_stream_t *s;
479  pg_buffer_index_t *bi;
480 
481  s = pool_elt_at_index (pg->streams, index);
482 
483  pg_stream_enable_disable (pg, s, /* want_enabled */ 0);
485 
486  vec_foreach (bi, s->buffer_indices)
487  {
489  }
490 
491  pg_stream_free (s);
492  pool_put (pg->streams, s);
493 }
494 
495 void
497 {
498  /* Determine packet size. */
499  switch (s->packet_size_edit_type)
500  {
501  case PG_EDIT_INCREMENT:
502  case PG_EDIT_RANDOM:
503  if (s->min_packet_bytes == s->max_packet_bytes)
505  case PG_EDIT_FIXED:
506  break;
507 
508  default:
509  /* Get packet size from fixed edits. */
511  if (!s->replay_packet_templates)
514  break;
515  }
516 
518 }
519 
520 
521 /*
522  * fd.io coding-style-patch-verification: ON
523  *
524  * Local Variables:
525  * eval: (c-set-style "gnu")
526  * End:
527  */
u32 sw_if_index
Definition: pg.h:303
#define vec_validate(V, I)
Make sure vector is long enough for given index (no header, unspecified alignment) ...
Definition: vec.h:507
Definition: edit.h:64
u32 next_index
Definition: pg.h:150
static int pg_stream_is_enabled(pg_stream_t *s)
Definition: pg.h:222
#define PG_EDIT_LO
Definition: edit.h:83
#define hash_set(h, key, value)
Definition: hash.h:255
#define clib_min(x, y)
Definition: clib.h:319
#define CLIB_UNUSED(x)
Definition: clib.h:86
u8 * fixed_packet_data
Definition: pg.h:120
vlib_buffer_t buffer
Definition: pg.h:393
vnet_main_t * vnet_get_main(void)
Definition: misc.c:46
Definition: pg.h:321
pg_edit_group_t * edit_groups
Definition: pg.h:106
#define clib_memcpy_fast(a, b, c)
Definition: string.h:81
static f64 vlib_time_now(vlib_main_t *vm)
Definition: main.h:291
uword * stream_index_by_name
Definition: pg.h:330
static vnet_hw_interface_t * vnet_get_hw_interface(vnet_main_t *vnm, u32 hw_if_index)
VNET_DEVICE_CLASS(pg_dev_class)
#define vec_add1(V, E)
Add 1 element to end of vector (unspecified alignment).
Definition: vec.h:590
u32 worker_index
Definition: pg.h:147
static clib_error_t * pg_interface_admin_up_down(vnet_main_t *vnm, u32 hw_if_index, u32 flags)
Definition: stream.c:130
u32 buffer_index
Definition: pg.h:394
static uword * clib_bitmap_set(uword *ai, uword i, uword value)
Sets the ith bit of a bitmap to new_value Removes trailing zeros from the bitmap. ...
Definition: bitmap.h:167
static u32 format_get_indent(u8 *s)
Definition: format.h:72
#define hash_set_mem(h, key, value)
Definition: hash.h:275
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:424
u64 last_increment_value
Definition: edit.h:87
#define pool_is_free(P, E)
Use free bitmap to query whether given element is free.
Definition: pool.h:291
pg_buffer_index_t * buffer_indices
Definition: pg.h:172
u32 hw_if_index
Definition: pg.h:303
pg_edit_type_t packet_size_edit_type
Definition: pg.h:108
#define pool_get(P, E)
Allocate an object E from a pool P (unspecified alignment).
Definition: pool.h:252
static uword vlib_node_add_next(vlib_main_t *vm, uword node, uword next_node)
Definition: node_funcs.h:1092
VNET_HW_INTERFACE_CLASS(pg_interface_class, static)
unsigned char u8
Definition: types.h:56
void pg_stream_change(pg_main_t *pg, pg_stream_t *s)
Definition: stream.c:496
u8 * fixed_packet_data_mask
Definition: pg.h:120
u32 start_byte_offset
Definition: pg.h:67
static pg_edit_group_t * pg_stream_get_group(pg_stream_t *s, u32 group_index)
Definition: pg.h:228
double f64
Definition: types.h:142
#define vec_add(V, E, N)
Add N elements to end of vector V (no header, unspecified alignment)
Definition: vec.h:666
u32 gso_size
Definition: pg.h:309
i64 word
Definition: types.h:111
vl_api_interface_index_t sw_if_index
Definition: gre.api:53
static u8 * format_pg_interface_name(u8 *s, va_list *args)
Definition: stream.c:117
static uword pow2_mask(uword x)
Definition: clib.h:235
u8 * fixed_packet_data_mask
Definition: pg.h:64
static uword clib_bitmap_is_zero(uword *ai)
predicate function; is an entire bitmap empty?
Definition: bitmap.h:57
u8 * format_white_space(u8 *s, va_list *va)
Definition: std-formats.c:129
pg_edit_type_t type
Definition: edit.h:66
vnet_hw_interface_flags_t flags
Definition: interface.h:526
u8 * fixed_packet_data
Definition: pg.h:63
#define vec_elt_at_index(v, i)
Get vector value at index i checking that i is in bounds.
i32 lsb_bit_offset
Definition: edit.h:73
#define vec_resize(V, N)
Resize a vector (no header, unspecified alignment) Add N elements to end of given vector V...
Definition: vec.h:281
unsigned int u32
Definition: types.h:88
void pg_stream_del(pg_main_t *pg, uword index)
Definition: stream.c:476
#define PG_STREAM_FLAGS_IS_ENABLED
Definition: pg.h:102
uword * if_index_by_if_id
Definition: pg.h:334
u32 buffer_bytes
Definition: pg.h:124
static u32 pg_eth_flag_change(vnet_main_t *vnm, vnet_hw_interface_t *hi, u32 flags)
Definition: stream.c:175
volatile u32 * lockp
Definition: pg.h:300
u8 * values[2]
Definition: edit.h:82
f64 packet_accumulator
Definition: pg.h:170
#define hash_get(h, key)
Definition: hash.h:249
u32 last_increment_packet_size
Definition: pg.h:130
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:534
#define hash_unset_mem(h, key)
Definition: hash.h:291
u32 pg_if_index
Definition: pg.h:133
format_function_t format_vnet_buffer
Definition: buffer.h:498
pg_edit_t * non_fixed_edits
Definition: pg.h:60
u8 * name
Definition: pg.h:97
unsigned short u16
Definition: types.h:57
static u64 pg_edit_get_value(pg_edit_t *e, int hi_or_lo)
Definition: edit.h:173
static void pg_stream_free(pg_stream_t *s)
Definition: pg.h:197
vec_header_t h
Definition: buffer.c:322
#define pool_put(P, E)
Free an object E in pool P.
Definition: pool.h:302
#define vec_dup(V)
Return copy of vector (no header, no alignment)
Definition: vec.h:427
vlib_node_function_t pg_output
Definition: pg.h:350
vlib_main_t * vm
Definition: in2out_ed.c:1599
uword ** enabled_streams
Definition: pg.h:327
u32 n_bits
Definition: edit.h:79
static_always_inline u32 vlib_buffer_get_default_data_size(vlib_main_t *vm)
Definition: buffer_funcs.h:96
u8 * format_ethernet_header_with_length(u8 *s, va_list *args)
Definition: format.c:97
u32 flags
Definition: vhost_user.h:248
static u8 * pg_build_rewrite(vnet_main_t *vnm, u32 sw_if_index, vnet_link_t link_type, const void *dst_address)
Definition: stream.c:153
u8 gso_enabled
Definition: pg.h:308
sll srl srl sll sra u16x4 i
Definition: vector_sse42.h:317
#define vec_free(V)
Free vector&#39;s memory (no header).
Definition: vec.h:380
u32 min_packet_bytes
Definition: pg.h:111
u32 max_packet_bytes
Definition: pg.h:111
void pg_edit_group_get_fixed_packet_data(pg_stream_t *s, u32 group_index, void *packet_data, void *packet_data_mask)
Definition: stream.c:333
pg_edit_t * non_fixed_edits
Definition: pg.h:115
u8 ** replay_packet_templates
Definition: pg.h:174
vlib_main_t vlib_node_runtime_t * node
Definition: in2out_ed.c:1599
static void perform_fixed_edits(pg_stream_t *s)
Definition: stream.c:350
pg_stream_t * streams
Definition: pg.h:324
#define ASSERT(truth)
u8 pre_data[VLIB_BUFFER_PRE_DATA_SIZE]
Space for inserting data before buffer start.
Definition: buffer.h:178
enum vnet_link_t_ vnet_link_t
Link Type: A description of the protocol of packets on the link.
u32 pg_interface_add_or_get(pg_main_t *pg, uword if_id, u8 gso_enabled, u32 gso_size)
Definition: stream.c:182
void pg_stream_enable_disable(pg_main_t *pg, pg_stream_t *s, int want_enabled)
Definition: stream.c:49
void pg_stream_add(pg_main_t *pg, pg_stream_t *s_init)
Definition: stream.c:392
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:148
#define clib_fifo_free(f)
Definition: fifo.h:257
Definition: pg.h:94
static vlib_main_t * vlib_get_main(void)
Definition: global_funcs.h:23
vl_api_ip4_address_t hi
Definition: arp.api:37
static uword pg_edit_n_alloc_bytes(pg_edit_t *e)
Definition: edit.h:120
u32 node_index
Definition: pg.h:144
static u8 * format_pg_output_trace(u8 *s, va_list *va)
Definition: stream.c:98
u32 sw_if_index[VLIB_N_RX_TX]
Definition: pg.h:141
#define hash_create_vec(elts, key_bytes, value_bytes)
Definition: hash.h:668
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
u32 id
Definition: pg.h:306
clib_error_t * ethernet_register_interface(vnet_main_t *vnm, u32 dev_class_index, u32 dev_instance, const u8 *address, u32 *hw_if_index_return, ethernet_flag_change_function_t flag_change)
Definition: interface.c:331
clib_error_t * vnet_hw_interface_set_flags(vnet_main_t *vnm, u32 hw_if_index, vnet_hw_interface_flags_t flags)
Definition: interface.c:498
vnet_l3_packet_type_t vnet_link_to_l3_proto(vnet_link_t link)
Convert a link to to an Ethertype.
Definition: interface.c:1597
u32 if_id
Definition: pg.h:152
u64 uword
Definition: types.h:112
pg_edit_t * edits
Definition: pg.h:57
#define hash_get_mem(h, key)
Definition: hash.h:269
static void * clib_mem_alloc_aligned(uword size, uword align)
Definition: mem.h:165
static void do_edit(pg_stream_t *stream, pg_edit_group_t *g, pg_edit_t *e, uword want_commit)
Definition: stream.c:239
static u32 random_u32(u32 *seed)
32-bit random number generator
Definition: random.h:69
clib_error_t * vnet_sw_interface_set_flags(vnet_main_t *vnm, u32 sw_if_index, vnet_sw_interface_flags_t flags)
Definition: interface.c:507
static u32 vlib_num_workers()
Definition: threads.h:376
u64 n_packets_generated
Definition: pg.h:155
vlib_node_registration_t pg_input_node
(constructor) VLIB_REGISTER_NODE (pg_input_node)
Definition: input.c:1804
pg_main_t pg_main
Definition: init.c:44
#define vec_foreach(var, vec)
Vector iterator.
static void pg_edit_free(pg_edit_t *e)
Definition: edit.h:91
vnet_device_class_t pg_dev_class
#define CLIB_CACHE_LINE_BYTES
Definition: cache.h:59
#define BITS(x)
Definition: clib.h:65
f64 time_last_generate
Definition: pg.h:168
pg_interface_t * interfaces
Definition: pg.h:333
Definition: defs.h:46
vlib_node_registration_t device_input_node
(constructor) VLIB_REGISTER_NODE (device_input_node)
Definition: devices.c:32
static vlib_main_t * vlib_get_worker_vlib_main(u32 worker_index)
Definition: threads.h:510
u32 flags
Definition: pg.h:99
u32 * buffer_fifo
Definition: pg.h:90