aboutsummaryrefslogtreecommitdiffstats
path: root/src/vnet/interface_funcs.h
blob: 08af7f26151710600ea6a8570456e7829acde08e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
/*
 * Copyright (c) 2015 Cisco and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/*
 * interface_funcs.h: VNET interfaces/sub-interfaces exported functions
 *
 * Copyright (c) 2008 Eliot Dresselhaus
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 *  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#ifndef included_vnet_interface_funcs_h
#define included_vnet_interface_funcs_h

always_inline vnet_hw_interface_t *
vnet_get_hw_interface (vnet_main_t * vnm, u32 hw_if_index)
{
  return pool_elt_at_index (vnm->interface_main.hw_interfaces, hw_if_index);
}

always_inline vnet_hw_interface_t *
vnet_get_hw_interface_safe (vnet_main_t * vnm, u32 hw_if_index)
{
  if (!pool_is_free_index (vnm->interface_main.hw_interfaces, hw_if_index))
    return pool_elt_at_index (vnm->interface_main.hw_interfaces, hw_if_index);
  return (NULL);
}

always_inline vnet_sw_interface_t *
vnet_get_sw_interface (vnet_main_t * vnm, u32 sw_if_index)
{
  return pool_elt_at_index (vnm->interface_main.sw_interfaces, sw_if_index);
}

always_inline vnet_sw_interface_t *
vnet_get_sw_interface_safe (vnet_main_t * vnm, u32 sw_if_index)
{
  if (!pool_is_free_index (vnm->interface_main.sw_interfaces, sw_if_index))
    return pool_elt_at_index (vnm->interface_main.sw_interfaces, sw_if_index);
  return (NULL);
}

always_inline vnet_sw_interface_t *
vnet_get_hw_sw_interface (vnet_main_t * vnm, u32 hw_if_index)
{
  vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
  vnet_sw_interface_t *sw = vnet_get_sw_interface (vnm, hw->sw_if_index);
  ASSERT (sw->type == VNET_SW_INTERFACE_TYPE_HARDWARE);
  return sw;
}

always_inline vnet_sw_interface_t *
vnet_get_sup_sw_interface (vnet_main_t * vnm, u32 sw_if_index)
{
  vnet_sw_interface_t *sw = vnet_get_sw_interface (vnm, sw_if_index);
  if (sw->type == VNET_SW_INTERFACE_TYPE_SUB ||
      sw->type == VNET_SW_INTERFACE_TYPE_PIPE ||
      sw->type == VNET_SW_INTERFACE_TYPE_P2P)
    sw = vnet_get_sw_interface (vnm, sw->sup_sw_if_index);
  return sw;
}

always_inline vnet_hw_interface_t *
vnet_get_sup_hw_interface (vnet_main_t * vnm, u32 sw_if_index)
{
  vnet_sw_interface_t *sw = vnet_get_sup_sw_interface (vnm, sw_if_index);
  ASSERT ((sw->type == VNET_SW_INTERFACE_TYPE_HARDWARE) ||
	  (sw->type == VNET_SW_INTERFACE_TYPE_PIPE));
  return vnet_get_hw_interface (vnm, sw->hw_if_index);
}

always_inline vnet_hw_interface_class_t *
vnet_get_hw_interface_class (vnet_main_t * vnm, u32 hw_class_index)
{
  return vec_elt_at_index (vnm->interface_main.hw_interface_classes,
			   hw_class_index);
}

always_inline vnet_device_class_t *
vnet_get_device_class (vnet_main_t * vnm, u32 dev_class_index)
{
  return vec_elt_at_index (vnm->interface_main.device_classes,
			   dev_class_index);
}

static inline u8 *
vnet_get_sw_interface_tag (vnet_main_t * vnm, u32 sw_if_index)
{
  uword *p;
  p = hash_get (vnm->interface_tag_by_sw_if_index, sw_if_index);
  if (p)
    return ((u8 *) p[0]);
  return 0;
}

static inline void
vnet_set_sw_interface_tag (vnet_main_t * vnm, u8 * tag, u32 sw_if_index)
{
  uword *p;
  p = hash_get (vnm->interface_tag_by_sw_if_index, sw_if_index);
  if (p)
    {
      u8 *oldtag = (u8 *) p[0];
      hash_unset (vnm->interface_tag_by_sw_if_index, sw_if_index);
      vec_free (oldtag);
    }

  hash_set (vnm->interface_tag_by_sw_if_index, sw_if_index, tag);
}

static inline void
vnet_clear_sw_interface_tag (vnet_main_t * vnm, u32 sw_if_index)
{
  uword *p;
  p = hash_get (vnm->interface_tag_by_sw_if_index, sw_if_index);
  if (p)
    {
      u8 *oldtag = (u8 *) p[0];
      hash_unset (vnm->interface_tag_by_sw_if_index, sw_if_index);
      vec_free (oldtag);
    }
}

/**
 * Walk return code
 */
typedef enum walk_rc_t_
{
  WALK_STOP,
  WALK_CONTINUE,
} walk_rc_t;

/**
 * Call back walk type for walking SW indices on a HW interface
 */
typedef walk_rc_t (*vnet_hw_sw_interface_walk_t) (vnet_main_t * vnm,
						  u32 sw_if_index, void *ctx);

/**
 * @brief
 * Walk the SW interfaces on a HW interface - this is the super
 * interface and any sub-interfaces.
 */
void vnet_hw_interface_walk_sw (vnet_main_t * vnm,
				u32 hw_if_index,
				vnet_hw_sw_interface_walk_t fn, void *ctx);

/**
 * Call back walk type for walking SW indices on a HW interface
 */
typedef walk_rc_t (*vnet_sw_interface_walk_t) (vnet_main_t * vnm,
					       vnet_sw_interface_t * si,
					       void *ctx);

/**
 * @brief
 * Walk all the SW interfaces in the system.
 */
void vnet_sw_interface_walk (vnet_main_t * vnm,
			     vnet_sw_interface_walk_t fn, void *ctx);


/**
 * Call back walk type for walking all HW indices
 */
typedef walk_rc_t (*vnet_hw_interface_walk_t) (vnet_main_t * vnm,
					       u32 hw_if_index, void *ctx);

/**
 * @brief
 * Walk all the HW interface
 */
void vnet_hw_interface_walk (vnet_main_t * vnm,
			     vnet_hw_interface_walk_t fn, void *ctx);

/* Register a hardware interface instance. */
u32 vnet_register_interface (vnet_main_t * vnm,
			     u32 dev_class_index,
			     u32 dev_instance,
			     u32 hw_class_index, u32 hw_instance);

/**
 * Set interface output node - for interface registered without its output/tx
 * nodes created because its VNET_DEVICE_CLASS did not specify any tx_function.
 * This is typically the case for tunnel interfaces.
 */
void vnet_set_interface_output_node (vnet_main_t * vnm,
				     u32 hw_if_index, u32 node_index);

/* Creates a software interface given template. */
clib_error_t *vnet_create_sw_interface (vnet_main_t * vnm,
					vnet_sw_interface_t * template,
					u32 * sw_if_index);

void vnet_delete_hw_interface (vnet_main_t * vnm, u32 hw_if_index);
void vnet_delete_sw_interface (vnet_main_t * vnm, u32 sw_if_index);
int vnet_sw_interface_is_p2p (vnet_main_t * vnm, u32 sw_if_index);

always_inline uword
vnet_sw_interface_get_flags (vnet_main_t * vnm, u32 sw_if_index)
{
  vnet_sw_interface_t *sw = vnet_get_sw_interface (vnm, sw_if_index);
  return sw->flags;
}

always_inline uword
vnet_sw_interface_is_valid (vnet_main_t * vnm, u32 sw_if_index)
{
  return !pool_is_free_index (vnm->interface_main.sw_interfaces, sw_if_index);
}

always_inline uword
vnet_hw_interface_is_valid (vnet_main_t * vnm, u32 hw_if_index)
{
  return !pool_is_free_index (vnm->interface_main.hw_interfaces, hw_if_index);
}


always_inline uword
vnet_sw_interface_is_admin_up (vnet_main_t * vnm, u32 sw_if_index)
{
  return (vnet_sw_interface_get_flags (vnm, sw_if_index) &
	  VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0;
}

always_inline uword
vnet_swif_is_api_visible (vnet_sw_interface_t * si)
{
  return !(si->flags & VNET_SW_INTERFACE_FLAG_HIDDEN);
}

always_inline uword
vnet_sw_interface_is_api_visible (vnet_main_t * vnm, u32 sw_if_index)
{
  vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
  return vnet_swif_is_api_visible (si);
}

always_inline uword
vnet_sw_interface_is_api_valid (vnet_main_t * vnm, u32 sw_if_index)
{
  return !pool_is_free_index (vnm->interface_main.sw_interfaces, sw_if_index)
    && vnet_sw_interface_is_api_visible (vnm, sw_if_index);
}

always_inline uword
vnet_hw_interface_get_flags (vnet_main_t * vnm, u32 hw_if_index)
{
  vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
  return hw->flags;
}

always_inline u32
vnet_hw_interface_get_mtu (vnet_main_t * vnm, u32 hw_if_index)
{
  vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
  return hw->max_packet_bytes;
}

always_inline u32
vnet_sw_interface_get_mtu (vnet_main_t * vnm, u32 sw_if_index, vnet_mtu_t af)
{
  vnet_sw_interface_t *sw = vnet_get_sw_interface (vnm, sw_if_index);
  u32 mtu;
  mtu = sw->mtu[af] > 0 ? sw->mtu[af] : sw->mtu[VNET_MTU_L3];
  if (mtu == 0)
    return 9000;		/* $$$ Deal with interface-types not setting MTU */
  return mtu;
}

always_inline uword
vnet_hw_interface_is_link_up (vnet_main_t * vnm, u32 hw_if_index)
{
  return (vnet_hw_interface_get_flags (vnm, hw_if_index) &
	  VNET_HW_INTERFACE_FLAG_LINK_UP) != 0;
}

always_inline vlib_frame_t *
vnet_get_frame_to_sw_interface (vnet_main_t * vnm, u32 sw_if_index)
{
  vnet_hw_interface_t *hw = vnet_get_sup_hw_interface (vnm, sw_if_index);
  return vlib_get_frame_to_node (vlib_get_main (), hw->output_node_index);
}

always_inline void
vnet_put_frame_to_sw_interface (vnet_main_t * vnm, u32 sw_if_index,
				vlib_frame_t * f)
{
  vnet_hw_interface_t *hw = vnet_get_sup_hw_interface (vnm, sw_if_index);
  return vlib_put_frame_to_node (vlib_get_main (), hw->output_node_index, f);
}

/* Change interface flags (e.g. up, down, enable, disable). */
clib_error_t *vnet_hw_interface_set_flags (vnet_main_t * vnm, u32 hw_if_index,
					   u32 flags);

/* Change interface flags (e.g. up, down, enable, disable). */
clib_error_t *vnet_sw_interface_set_flags (vnet_main_t * vnm, u32 sw_if_index,
					   u32 flags);

/* Change interface class. */
clib_error_t *vnet_hw_interface_set_class (vnet_main_t * vnm, u32 hw_if_index,
					   u32 new_hw_class_index);

/* Redirect rx pkts to node */
int vnet_hw_interface_rx_redirect_to_node (vnet_main_t * vnm, u32 hw_if_index,
					   u32 node_index);

void vnet_hw_interface_init_for_class (vnet_main_t * vnm, u32 hw_if_index,
				       u32 hw_class_index, u32 hw_instance);

/* Rename interface */
clib_error_t *vnet_rename_interface (vnet_main_t * vnm, u32 hw_if_index,
				     char *new_name);

/* Change interface mac address*/
clib_error_t *vnet_hw_interface_change_mac_address (vnet_main_t * vnm,
						    u32 hw_if_index,
						    u8 * mac_address);

/* Change rx-mode */
clib_error_t *set_hw_interface_change_rx_mode (vnet_main_t * vnm,
					       u32 hw_if_index,
					       u8 queue_id_valid,
					       u32 queue_id,
					       vnet_hw_interface_rx_mode
					       mode);

/* Set the MTU on the HW interface */
void vnet_hw_interface_set_mtu (vnet_main_t * vnm, u32 hw_if_index, u32 mtu);

/* Set the MTU on the SW interface */
void vnet_sw_interface_set_mtu (vnet_main_t * vnm, u32 sw_if_index, u32 mtu);
void vnet_sw_interface_set_protocol_mtu (vnet_main_t * vnm, u32 sw_if_index,
					 u32 mtu[]);

/* update the unnumbered state of an interface */
void vnet_sw_interface_update_unnumbered (u32 sw_if_index,
					  u32 ip_sw_if_index, u8 enable);

int vnet_sw_interface_stats_collect_enable_disable (u32 sw_if_index,
						    u8 enable);

/* Formats sw/hw interface. */
format_function_t format_vnet_hw_interface;
format_function_t format_vnet_hw_interface_rx_mode;
format_function_t format_vnet_hw_if_index_name;
format_function_t format_vnet_sw_interface;
format_function_t format_vnet_sw_interface_name;
format_function_t format_vnet_sw_interface_name_override;
format_function_t format_vnet_sw_if_index_name;
format_function_t format_vnet_sw_interface_flags;

/* Parses sw/hw interface name -> index. */
unformat_function_t unformat_vnet_sw_interface;
unformat_function_t unformat_vnet_hw_interface;

/* Parses interface flags (up, down, enable, disable, etc.) */
unformat_function_t unformat_vnet_hw_interface_flags;
unformat_function_t unformat_vnet_sw_interface_flags;

/* Node runtime for interface output function. */
typedef struct
{
  u32 hw_if_index;
  u32 sw_if_index;
  u32 dev_instance;
  u32 is_deleted;
} vnet_interface_output_runtime_t;

/* Interface output function. */
void *vnet_interface_output_node_multiarch_select (void);

word vnet_sw_interface_compare (vnet_main_t * vnm, uword sw_if_index0,
				uword sw_if_index1);
word vnet_hw_interface_compare (vnet_main_t * vnm, uword hw_if_index0,
				uword hw_if_index1);

typedef enum
{
  VNET_INTERFACE_OUTPUT_NEXT_DROP,
  VNET_INTERFACE_OUTPUT_NEXT_TX,
} vnet_interface_output_next_t;

typedef enum
{
  VNET_INTERFACE_TX_NEXT_DROP,
  VNET_INTERFACE_TX_N_NEXT,
} vnet_interface_tx_next_t;

#define VNET_SIMULATED_ETHERNET_TX_NEXT_ETHERNET_INPUT VNET_INTERFACE_TX_N_NEXT

typedef enum
{
  VNET_INTERFACE_OUTPUT_ERROR_INTERFACE_DOWN,
  VNET_INTERFACE_OUTPUT_ERROR_INTERFACE_DELETED,
} vnet_interface_output_error_t;

/* Format for interface output traces. */
u8 *format_vnet_interface_output_trace (u8 * s, va_list * va);

serialize_function_t serialize_vnet_interface_state,
  unserialize_vnet_interface_state;

#endif /* included_vnet_interface_funcs_h */

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */