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Vector Packet Processing
interface.h
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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  * interface.h: VNET interfaces/sub-interfaces
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_vnet_interface_h
41 #define included_vnet_interface_h
42 
43 #include <vnet/unix/pcap.h>
44 #include <vnet/l3_types.h>
45 
46 struct vnet_main_t;
47 struct vnet_hw_interface_t;
48 struct vnet_sw_interface_t;
49 struct ip46_address_t;
50 
51 typedef enum
52 {
60 
61 /* Interface up/down callback. */
63  (struct vnet_main_t * vnm, u32 if_index, u32 flags);
64 
65 /* Sub-interface add/del callback. */
67  (struct vnet_main_t * vnm, u32 if_index,
68  struct vnet_sw_interface_t * template, int is_add);
69 
70 /* Interface set mac address callback. */
72  (struct vnet_hw_interface_t * hi, char *address);
73 
74 /* Interface set rx mode callback. */
76  (struct vnet_main_t * vnm, u32 if_index, u32 queue_id,
77  vnet_hw_interface_rx_mode mode);
78 
79 /* Interface set l2 mode callback. */
81  (struct vnet_main_t * vnm, struct vnet_hw_interface_t * hi,
82  i32 l2_if_adjust);
83 
84 typedef enum
85 {
91 
92 /* Interface flow opeations callback. */
93 typedef int (vnet_flow_dev_ops_function_t) (struct vnet_main_t * vnm,
94  vnet_flow_dev_op_t op,
95  u32 hw_if_index, u32 index,
96  uword * private_data);
97 
99 {
103 #define VNET_ITF_FUNC_N_PRIO ((vnet_interface_function_priority_t)VNET_ITF_FUNC_PRIORITY_HIGH+1)
104 
105 typedef struct _vnet_interface_function_list_elt
106 {
107  struct _vnet_interface_function_list_elt *next_interface_function;
108  clib_error_t *(*fp) (struct vnet_main_t * vnm, u32 if_index, u32 flags);
109 } _vnet_interface_function_list_elt_t;
110 
111 #define _VNET_INTERFACE_FUNCTION_DECL_PRIO(f,tag,p) \
112  \
113 static void __vnet_interface_function_init_##tag##_##f (void) \
114  __attribute__((__constructor__)) ; \
115  \
116 static void __vnet_interface_function_init_##tag##_##f (void) \
117 { \
118  vnet_main_t * vnm = vnet_get_main(); \
119  static _vnet_interface_function_list_elt_t init_function; \
120  init_function.next_interface_function = vnm->tag##_functions[p]; \
121  vnm->tag##_functions[p] = &init_function; \
122  init_function.fp = (void *) &f; \
123 } \
124 static void __vnet_interface_function_deinit_##tag##_##f (void) \
125  __attribute__((__destructor__)) ; \
126  \
127 static void __vnet_interface_function_deinit_##tag##_##f (void) \
128 { \
129  vnet_main_t * vnm = vnet_get_main(); \
130  _vnet_interface_function_list_elt_t *next; \
131  if (vnm->tag##_functions[p]->fp == (void *) &f) \
132  { \
133  vnm->tag##_functions[p] = \
134  vnm->tag##_functions[p]->next_interface_function; \
135  return; \
136  } \
137  next = vnm->tag##_functions[p]; \
138  while (next->next_interface_function) \
139  { \
140  if (next->next_interface_function->fp == (void *) &f) \
141  { \
142  next->next_interface_function = \
143  next->next_interface_function->next_interface_function; \
144  return; \
145  } \
146  next = next->next_interface_function; \
147  } \
148 }
149 
150 #define _VNET_INTERFACE_FUNCTION_DECL(f,tag) \
151  _VNET_INTERFACE_FUNCTION_DECL_PRIO(f,tag,VNET_ITF_FUNC_PRIORITY_LOW)
152 
153 #define VNET_HW_INTERFACE_ADD_DEL_FUNCTION(f) \
154  _VNET_INTERFACE_FUNCTION_DECL(f,hw_interface_add_del)
155 #define VNET_HW_INTERFACE_LINK_UP_DOWN_FUNCTION(f) \
156  _VNET_INTERFACE_FUNCTION_DECL(f,hw_interface_link_up_down)
157 #define VNET_HW_INTERFACE_LINK_UP_DOWN_FUNCTION_PRIO(f,p) \
158  _VNET_INTERFACE_FUNCTION_DECL_PRIO(f,hw_interface_link_up_down,p)
159 #define VNET_SW_INTERFACE_MTU_CHANGE_FUNCTION(f) \
160  _VNET_INTERFACE_FUNCTION_DECL(f,sw_interface_mtu_change)
161 #define VNET_SW_INTERFACE_ADD_DEL_FUNCTION(f) \
162  _VNET_INTERFACE_FUNCTION_DECL(f,sw_interface_add_del)
163 #define VNET_SW_INTERFACE_ADMIN_UP_DOWN_FUNCTION(f) \
164  _VNET_INTERFACE_FUNCTION_DECL(f,sw_interface_admin_up_down)
165 #define VNET_SW_INTERFACE_ADMIN_UP_DOWN_FUNCTION_PRIO(f,p) \
166  _VNET_INTERFACE_FUNCTION_DECL_PRIO(f,sw_interface_admin_up_down, p)
167 
168 /* A class of hardware interface devices. */
169 typedef struct _vnet_device_class
170 {
171  /* Index into main vector. */
172  u32 index;
173 
174  /* Device name (e.g. "FOOBAR 1234a"). */
175  char *name;
176 
177  /* Function to call when hardware interface is added/deleted. */
178  vnet_interface_function_t *interface_add_del_function;
179 
180  /* Function to bring device administratively up/down. */
182 
183  /* Function to call when sub-interface is added/deleted */
184  vnet_subif_add_del_function_t *subif_add_del_function;
185 
186  /* Function to call interface rx mode is changed */
187  vnet_interface_set_rx_mode_function_t *rx_mode_change_function;
188 
189  /* Function to call interface l2 mode is changed */
190  vnet_interface_set_l2_mode_function_t *set_l2_mode_function;
191 
192  /* Redistribute flag changes/existence of this interface class. */
193  u32 redistribute;
194 
195  /* Transmit function. */
196  vlib_node_function_t *tx_function;
197 
198  /* Error strings indexed by error code for this node. */
199  char **tx_function_error_strings;
200 
201  /* Number of error codes used by this node. */
202  u32 tx_function_n_errors;
203 
204  /* Renumber device name [only!] support, a control-plane kludge */
205  int (*name_renumber) (struct vnet_hw_interface_t * hi,
206  u32 new_dev_instance);
207 
208  /* Interface flow offload operations */
209  vnet_flow_dev_ops_function_t *flow_ops_function;
210 
211  /* Format device instance as name. */
212  format_function_t *format_device_name;
213 
214  /* Parse function for device name. */
215  unformat_function_t *unformat_device_name;
216 
217  /* Format device verbosely for this class. */
218  format_function_t *format_device;
219 
220  /* Trace buffer format for TX function. */
221  format_function_t *format_tx_trace;
222 
223  /* Format flow offload entry */
225 
226  /* Function to clear hardware counters for device. */
227  void (*clear_counters) (u32 dev_class_instance);
228 
229  uword (*is_valid_class_for_interface) (struct vnet_main_t * vnm,
230  u32 hw_if_index,
231  u32 hw_class_index);
232 
233  /* Called when hardware class of an interface changes. */
234  void (*hw_class_change) (struct vnet_main_t * vnm,
235  u32 hw_if_index, u32 new_hw_class_index);
236 
237  /* Called to redirect traffic from a specific interface instance */
238  void (*rx_redirect_to_node) (struct vnet_main_t * vnm,
239  u32 hw_if_index, u32 node_index);
240 
241  /* Link-list of all device classes set up by constructors created below */
242  struct _vnet_device_class *next_class_registration;
243 
244  /* Function to set mac address. */
245  vnet_interface_set_mac_address_function_t *mac_addr_change_function;
247 
248 #define VNET_DEVICE_CLASS(x,...) \
249  __VA_ARGS__ vnet_device_class_t x; \
250 static void __vnet_add_device_class_registration_##x (void) \
251  __attribute__((__constructor__)) ; \
252 static void __vnet_add_device_class_registration_##x (void) \
253 { \
254  vnet_main_t * vnm = vnet_get_main(); \
255  x.next_class_registration = vnm->device_class_registrations; \
256  vnm->device_class_registrations = &x; \
257 } \
258 static void __vnet_rm_device_class_registration_##x (void) \
259  __attribute__((__destructor__)) ; \
260 static void __vnet_rm_device_class_registration_##x (void) \
261 { \
262  vnet_main_t * vnm = vnet_get_main(); \
263  VLIB_REMOVE_FROM_LINKED_LIST (vnm->device_class_registrations, \
264  &x, next_class_registration); \
265 } \
266 __VA_ARGS__ vnet_device_class_t x
267 
268 #define VLIB_DEVICE_TX_FUNCTION_CLONE_TEMPLATE(arch, fn, tgt) \
269  uword \
270  __attribute__ ((flatten)) \
271  __attribute__ ((target (tgt))) \
272  CLIB_CPU_OPTIMIZED \
273  fn ## _ ## arch ( vlib_main_t * vm, \
274  vlib_node_runtime_t * node, \
275  vlib_frame_t * frame) \
276  { return fn (vm, node, frame); }
277 
278 #define VLIB_DEVICE_TX_FUNCTION_MULTIARCH_CLONE(fn) \
279  foreach_march_variant(VLIB_DEVICE_TX_FUNCTION_CLONE_TEMPLATE, fn)
280 
281 #if CLIB_DEBUG > 0
282 #define VLIB_MULTIARCH_CLONE_AND_SELECT_FN(fn,...)
283 #define VLIB_DEVICE_TX_FUNCTION_MULTIARCH(dev, fn)
284 #else
285 #define VLIB_DEVICE_TX_FUNCTION_MULTIARCH(dev, fn) \
286  VLIB_DEVICE_TX_FUNCTION_MULTIARCH_CLONE(fn) \
287  CLIB_MULTIARCH_SELECT_FN(fn, static inline) \
288  static void __attribute__((__constructor__)) \
289  __vlib_device_tx_function_multiarch_select_##dev (void) \
290  { dev.tx_function = fn ## _multiarch_select(); }
291 #endif
292 
293 /**
294  * Link Type: A description of the protocol of packets on the link.
295  * On an ethernet link this maps directly into the ethertype. On a GRE tunnel
296  * it maps to the GRE-proto, etc for other lnk types.
297  */
298 typedef enum vnet_link_t_
299 {
300 #if CLIB_DEBUG > 0
302 #else
303  VNET_LINK_IP4 = 0,
304 #endif
310 } __attribute__ ((packed)) vnet_link_t;
311 
312 #define VNET_LINKS { \
313  [VNET_LINK_ETHERNET] = "ethernet", \
314  [VNET_LINK_IP4] = "ipv4", \
315  [VNET_LINK_IP6] = "ipv6", \
316  [VNET_LINK_MPLS] = "mpls", \
317  [VNET_LINK_ARP] = "arp", \
318  [VNET_LINK_NSH] = "nsh", \
319 }
320 
321 #define FOR_EACH_VNET_LINK(_link) \
322  for (_link = VNET_LINK_IP4; \
323  _link <= VNET_LINK_NSH; \
324  _link++)
325 
326 /**
327  * @brief Number of link types. Not part of the enum so it does not have to be included in
328  * switch statements
329  */
330 #define VNET_LINK_NUM (VNET_LINK_NSH+1)
331 
332 /**
333  * @brief Convert a link to to an Ethertype
334  */
335 extern vnet_l3_packet_type_t vnet_link_to_l3_proto (vnet_link_t link);
336 
337 /**
338  * @brief Attributes assignable to a HW interface Class.
339  */
341 {
342  /**
343  * @brief a point 2 point interface
344  */
347 
348 /* Layer-2 (e.g. Ethernet) interface class. */
349 typedef struct _vnet_hw_interface_class
350 {
351  /* Index into main vector. */
352  u32 index;
353 
354  /* Class name (e.g. "Ethernet"). */
355  char *name;
356 
357  /* Flags */
359 
360  /* Function to call when hardware interface is added/deleted. */
361  vnet_interface_function_t *interface_add_del_function;
362 
363  /* Function to bring interface administratively up/down. */
365 
366  /* Function to call when link state changes. */
368 
369  /* Function to call when link MAC changes. */
370  vnet_interface_set_mac_address_function_t *mac_addr_change_function;
371 
372  /* Format function to display interface name. */
373  format_function_t *format_interface_name;
374 
375  /* Format function to display interface address. */
376  format_function_t *format_address;
377 
378  /* Format packet header for this interface class. */
379  format_function_t *format_header;
380 
381  /* Format device verbosely for this class. */
382  format_function_t *format_device;
383 
384  /* Parser for hardware (e.g. ethernet) address. */
385  unformat_function_t *unformat_hw_address;
386 
387  /* Parser for packet header for e.g. rewrite string. */
388  unformat_function_t *unformat_header;
389 
390  /* Builds a rewrite string for the interface to the destination
391  * for the payload/link type. */
392  u8 *(*build_rewrite) (struct vnet_main_t * vnm,
393  u32 sw_if_index,
394  vnet_link_t link_type, const void *dst_hw_address);
395 
396  /* Update an adjacecny added by FIB (as opposed to via the
397  * neighbour resolution protocol). */
398  void (*update_adjacency) (struct vnet_main_t * vnm,
399  u32 sw_if_index, u32 adj_index);
400 
401  uword (*is_valid_class_for_interface) (struct vnet_main_t * vnm,
402  u32 hw_if_index,
403  u32 hw_class_index);
404 
405  /* Called when hw interface class is changed and old hardware instance
406  may want to be deleted. */
407  void (*hw_class_change) (struct vnet_main_t * vnm, u32 hw_if_index,
408  u32 old_class_index, u32 new_class_index);
409 
410  /* List of hw interface classes, built by constructors */
411  struct _vnet_hw_interface_class *next_class_registration;
412 
414 
415 /**
416  * @brief Return a complete, zero-length (aka dummy) rewrite
417  */
418 extern u8 *default_build_rewrite (struct vnet_main_t *vnm,
419  u32 sw_if_index,
420  vnet_link_t link_type,
421  const void *dst_hw_address);
422 
423 /**
424  * @brief Default adjacency update function
425  */
426 extern void default_update_adjacency (struct vnet_main_t *vnm,
427  u32 sw_if_index, u32 adj_index);
428 
429 #define VNET_HW_INTERFACE_CLASS(x,...) \
430  __VA_ARGS__ vnet_hw_interface_class_t x; \
431 static void __vnet_add_hw_interface_class_registration_##x (void) \
432  __attribute__((__constructor__)) ; \
433 static void __vnet_add_hw_interface_class_registration_##x (void) \
434 { \
435  vnet_main_t * vnm = vnet_get_main(); \
436  x.next_class_registration = vnm->hw_interface_class_registrations; \
437  vnm->hw_interface_class_registrations = &x; \
438 } \
439 static void __vnet_rm_hw_interface_class_registration_##x (void) \
440  __attribute__((__destructor__)) ; \
441 static void __vnet_rm_hw_interface_class_registration_##x (void) \
442 { \
443  vnet_main_t * vnm = vnet_get_main(); \
444  VLIB_REMOVE_FROM_LINKED_LIST (vnm->hw_interface_class_registrations,\
445  &x, next_class_registration); \
446 } \
447 __VA_ARGS__ vnet_hw_interface_class_t x
448 
449 /* Hardware-interface. This corresponds to a physical wire
450  that packets flow over. */
451 typedef struct vnet_hw_interface_t
452 {
453  /* Interface name. */
455 
457  /* Hardware link state is up. */
458 #define VNET_HW_INTERFACE_FLAG_LINK_UP (1 << 0)
459  /* Hardware duplex state */
460 #define VNET_HW_INTERFACE_FLAG_DUPLEX_SHIFT 1
461 #define VNET_HW_INTERFACE_FLAG_HALF_DUPLEX (1 << 1)
462 #define VNET_HW_INTERFACE_FLAG_FULL_DUPLEX (1 << 2)
463 #define VNET_HW_INTERFACE_FLAG_DUPLEX_MASK \
464  (VNET_HW_INTERFACE_FLAG_HALF_DUPLEX | \
465  VNET_HW_INTERFACE_FLAG_FULL_DUPLEX)
466 
467  /* Hardware link speed */
468 #define VNET_HW_INTERFACE_FLAG_SPEED_SHIFT 3
469 #define VNET_HW_INTERFACE_FLAG_SPEED_10M (1 << 3)
470 #define VNET_HW_INTERFACE_FLAG_SPEED_100M (1 << 4)
471 #define VNET_HW_INTERFACE_FLAG_SPEED_1G (1 << 5)
472 #define VNET_HW_INTERFACE_FLAG_SPEED_2_5G (1 << 6)
473 #define VNET_HW_INTERFACE_FLAG_SPEED_5G (1 << 7)
474 #define VNET_HW_INTERFACE_FLAG_SPEED_10G (1 << 8)
475 #define VNET_HW_INTERFACE_FLAG_SPEED_20G (1 << 9)
476 #define VNET_HW_INTERFACE_FLAG_SPEED_25G (1 << 10)
477 #define VNET_HW_INTERFACE_FLAG_SPEED_40G (1 << 11)
478 #define VNET_HW_INTERFACE_FLAG_SPEED_50G (1 << 12)
479 #define VNET_HW_INTERFACE_FLAG_SPEED_56G (1 << 13)
480 #define VNET_HW_INTERFACE_FLAG_SPEED_100G (1 << 14)
481 #define VNET_HW_INTERFACE_FLAG_SPEED_MASK \
482  (VNET_HW_INTERFACE_FLAG_SPEED_10M | \
483  VNET_HW_INTERFACE_FLAG_SPEED_100M | \
484  VNET_HW_INTERFACE_FLAG_SPEED_1G | \
485  VNET_HW_INTERFACE_FLAG_SPEED_2_5G | \
486  VNET_HW_INTERFACE_FLAG_SPEED_5G | \
487  VNET_HW_INTERFACE_FLAG_SPEED_10G | \
488  VNET_HW_INTERFACE_FLAG_SPEED_20G | \
489  VNET_HW_INTERFACE_FLAG_SPEED_25G | \
490  VNET_HW_INTERFACE_FLAG_SPEED_40G | \
491  VNET_HW_INTERFACE_FLAG_SPEED_50G | \
492  VNET_HW_INTERFACE_FLAG_SPEED_56G | \
493  VNET_HW_INTERFACE_FLAG_SPEED_100G)
494 
495  /* rx mode flags */
496 #define VNET_HW_INTERFACE_FLAG_SUPPORTS_INT_MODE (1 << 16)
497 
498  /* tx checksum offload */
499 #define VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD (1 << 17)
500 
501  /* Hardware address as vector. Zero (e.g. zero-length vector) if no
502  address for this class (e.g. PPP). */
504 
505  /* Interface is up as far as software is concerned. */
506  /* NAME.{output,tx} nodes for this interface. */
507  u32 output_node_index, tx_node_index;
508 
509  /* (dev_class, dev_instance) uniquely identifies hw interface. */
512 
513  /* (hw_class, hw_instance) uniquely identifies hw interface. */
516 
517  /* Hardware index for this hardware interface. */
519 
520  /* Software index for this hardware interface. */
522 
523  /* Next index in interface-output node for this interface
524  used by node function vnet_per_buffer_interface_output() */
526 
527  /* Maximum transmit rate for this interface in bits/sec. */
529 
530  /* Smallest packet size supported by this interface. */
532 
533  /* Largest packet size supported by this interface. */
535 
536  /* Smallest packet size for this interface. */
538 
539  /* Largest packet size for this interface. */
541 
542  /* Hash table mapping sub interface id to sw_if_index. */
544 
545  /* Count of number of L2 subinterfaces */
547 
548  /* Bonded interface info -
549  0 - not a bonded interface nor a slave
550  ~0 - slave to a bonded interface
551  others - A bonded interface with a pointer to bitmap for all slaves */
553 #define VNET_HW_INTERFACE_BOND_INFO_NONE ((uword *) 0)
554 #define VNET_HW_INTERFACE_BOND_INFO_SLAVE ((uword *) ~0)
555 
556  /* Input node */
558 
559  /* input node cpu index by queue */
561 
562  /* vnet_hw_interface_rx_mode by queue */
564  vnet_hw_interface_rx_mode default_rx_mode;
565 
566  /* device input device_and_queue runtime index */
568 
570 
572 
573 typedef enum
574 {
575  /* A hw interface. */
577 
578  /* A sub-interface. */
583 
584 typedef struct
585 {
586  /*
587  * Subinterface ID. A number 0-N to uniquely identify
588  * this subinterface under the main (parent?) interface
589  */
591 
592  /* Classification data. Used to associate packet header with subinterface. */
593  struct
594  {
597  union
598  {
600  struct
601  {
602  u16 no_tags:1;
603  u16 one_tag:1;
604  u16 two_tags:1;
605  u16 dot1ad:1; /* 0 = dot1q, 1=dot1ad */
606  u16 exact_match:1;
607  u16 default_sub:1;
608  u16 outer_vlan_id_any:1;
609  u16 inner_vlan_id_any:1;
610  } flags;
611  };
612  } eth;
614 
615 typedef struct
616 {
617  /*
618  * Subinterface ID. A number 0-N to uniquely identify
619  * this subinterface under the main interface
620  */
623  u8 client_mac[6];
625 
626 typedef enum
627 {
628  /* THe BVI interface */
630  /* Always flood */
633  /* Does not flood when tunnel master is in the same L2 BD */
635  /* Never flood to this type */
638 
639 /* Per protocol MTU */
640 typedef enum
641 {
642  VNET_MTU_L3, /* Default payload MTU (without L2 headers) */
643  VNET_MTU_IP4, /* Per-protocol MTUs overriding default */
647 } vnet_mtu_t;
648 
649 extern vnet_mtu_t vnet_link_to_mtu (vnet_link_t link);
650 
651 /* Software-interface. This corresponds to a Ethernet VLAN, ATM vc, a
652  tunnel, etc. Configuration (e.g. IP address) gets attached to
653  software interface. */
654 typedef struct
655 {
656  vnet_sw_interface_type_t type:16;
657 
659  /* Interface is "up" meaning adminstratively up.
660  Up in the sense of link state being up is maintained by hardware interface. */
661 #define VNET_SW_INTERFACE_FLAG_ADMIN_UP (1 << 0)
662 
663  /* Interface is disabled for forwarding: punt all traffic to slow-path. */
664 #define VNET_SW_INTERFACE_FLAG_PUNT (1 << 1)
665 
666 #define VNET_SW_INTERFACE_FLAG_PROXY_ARP (1 << 2)
667 
668 #define VNET_SW_INTERFACE_FLAG_UNNUMBERED (1 << 3)
669 
670 #define VNET_SW_INTERFACE_FLAG_BOND_SLAVE (1 << 4)
671 
672  /* Interface does not appear in CLI/API */
673 #define VNET_SW_INTERFACE_FLAG_HIDDEN (1 << 5)
674 
675  /* Interface in ERROR state */
676 #define VNET_SW_INTERFACE_FLAG_ERROR (1 << 6)
677 
678  /* Index for this interface. */
680 
681  /* Software interface index of super-interface;
682  equal to sw_if_index if this interface is not a
683  sub-interface. */
685 
686  /* this swif is unnumbered, use addresses on unnumbered_sw_if_index... */
688 
690 
691  /* VNET_SW_INTERFACE_TYPE_HARDWARE. */
693 
694  /* MTU for network layer (not including L2 headers) */
696 
697  /* VNET_SW_INTERFACE_TYPE_SUB. */
699 
700  /* VNET_SW_INTERFACE_TYPE_P2P. */
702 
703  vnet_flood_class_t flood_class;
705 
706 typedef enum
707 {
708  /* Simple counters. */
719  /* Combined counters. */
730 
731 #define foreach_rx_combined_interface_counter(_x) \
732  for (_x = VNET_INTERFACE_COUNTER_RX; \
733  _x <= VNET_INTERFACE_COUNTER_RX_BROADCAST; \
734  _x++)
735 
736 #define foreach_tx_combined_interface_counter(_x) \
737  for (_x = VNET_INTERFACE_COUNTER_TX; \
738  _x <= VNET_INTERFACE_COUNTER_TX_BROADCAST; \
739  _x++)
740 
741 #define foreach_simple_interface_counter_name \
742  _(DROP, drops, if) \
743  _(PUNT, punt, if) \
744  _(IP4, ip4, if) \
745  _(IP6, ip6, if) \
746  _(RX_NO_BUF, rx-no-buf, if) \
747  _(RX_MISS, rx-miss, if) \
748  _(RX_ERROR, rx-error, if) \
749  _(TX_ERROR, tx-error, if)
750 
751 #define foreach_combined_interface_counter_name \
752  _(RX, rx, if) \
753  _(RX_UNICAST, rx-unicast, if) \
754  _(RX_MULTICAST, rx-multicast, if) \
755  _(RX_BROADCAST, rx-broadcast, if) \
756  _(TX, tx, if) \
757  _(TX_UNICAST, tx-unicast-miss, if) \
758  _(TX_MULTICAST, tx-multicast, if) \
759  _(TX_BROADCAST, tx-broadcast, if)
760 
761 typedef enum
762 {
766 
768 
769 static inline int
771 {
773 }
774 
777 
778 
779 typedef struct
780 {
784 
785 typedef struct
786 {
787  /* Hardware interfaces. */
789 
790  /* Hash table mapping HW interface name to index. */
792 
793  /* Vectors if hardware interface classes and device classes. */
796 
797  /* Hash table mapping name to hw interface/device class. */
800 
801  /* Software interfaces. */
803 
804  /* Hash table mapping sub intfc sw_if_index by sup sw_if_index and sub id */
806 
807  /* Software interface counters both simple and combined
808  packet and byte counters. */
812 
814 
815  /* pcap drop tracing */
822 
823  /* feature_arc_index */
826 
827 static inline void
829 {
830  if (im->sw_if_counter_lock)
831  while (__sync_lock_test_and_set (im->sw_if_counter_lock, 1))
832  /* zzzz */ ;
833 }
834 
835 static inline void
837 {
838  if (im->sw_if_counter_lock)
839  *im->sw_if_counter_lock = 0;
840 }
841 
842 void vnet_pcap_drop_trace_filter_add_del (u32 error_index, int is_add);
843 
844 int vnet_interface_name_renumber (u32 sw_if_index, u32 new_show_dev_instance);
845 
846 #endif /* included_vnet_interface_h */
847 
848 /*
849  * fd.io coding-style-patch-verification: ON
850  *
851  * Local Variables:
852  * eval: (c-set-style "gnu")
853  * End:
854  */
u8 * default_build_rewrite(struct vnet_main_t *vnm, u32 sw_if_index, vnet_link_t link_type, const void *dst_hw_address)
Return a complete, zero-length (aka dummy) rewrite.
Definition: interface.c:1592
vmrglw vmrglh hi
uword( unformat_function_t)(unformat_input_t *input, va_list *args)
Definition: format.h:232
pcap_main_t pcap_main
Definition: interface.h:817
void collect_detailed_interface_stats_flag_set(void)
Definition: interface.c:1650
volatile u32 * sw_if_counter_lock
Definition: interface.h:809
vnet_hw_interface_nodes_t * deleted_hw_interface_nodes
Definition: interface.h:813
vnet_p2p_sub_interface_t p2p
Definition: interface.h:701
enum vnet_hw_interface_class_flags_t_ vnet_hw_interface_class_flags_t
Attributes assignable to a HW interface Class.
PCAP utility definitions.
u32 * input_node_thread_index_by_queue
Definition: interface.h:560
clib_error_t *( vnet_interface_set_rx_mode_function_t)(struct vnet_main_t *vnm, u32 if_index, u32 queue_id, vnet_hw_interface_rx_mode mode)
Definition: interface.h:76
uword * sub_interface_sw_if_index_by_id
Definition: interface.h:543
u8 *( format_function_t)(u8 *s, va_list *args)
Definition: format.h:48
struct _vnet_device_class vnet_device_class_t
uword * dq_runtime_index_by_queue
Definition: interface.h:567
vnet_mtu_t vnet_link_to_mtu(vnet_link_t link)
Definition: interface.c:1576
unsigned char u8
Definition: types.h:56
vnet_interface_stats_collection_mode_e
Definition: interface.h:761
clib_error_t *( vnet_interface_set_mac_address_function_t)(struct vnet_hw_interface_t *hi, char *address)
Definition: interface.h:72
double f64
Definition: types.h:142
vnet_hw_interface_rx_mode
Definition: interface.h:51
vnet_flood_class_t flood_class
Definition: interface.h:703
uword * pcap_drop_filter_hash
Definition: interface.h:821
PCAP main state data structure.
Definition: pcap.h:124
vnet_l3_packet_type_t
Definition: l3_types.h:44
vlib_combined_counter_main_t * combined_sw_if_counters
Definition: interface.h:811
static format_function_t format_flow
Definition: flow_cli.c:22
clib_error_t *( vnet_interface_function_t)(struct vnet_main_t *vnm, u32 if_index, u32 flags)
Definition: interface.h:63
unsigned int u32
Definition: types.h:88
int collect_detailed_interface_stats_flag
Definition: interface.c:1647
A collection of simple counters.
Definition: counter.h:58
void vnet_pcap_drop_trace_filter_add_del(u32 error_index, int is_add)
u32 max_supported_packet_bytes
Definition: interface.h:534
uword * hw_interface_by_name
Definition: interface.h:791
vnet_l3_packet_type_t vnet_link_to_l3_proto(vnet_link_t link)
Convert a link to to an Ethertype.
Definition: interface.c:1554
static clib_error_t * link_up_down_function(vnet_main_t *vm, u32 hw_if_index, u32 flags)
vnet_hw_interface_t * hw_interfaces
Definition: interface.h:788
vnet_sub_interface_t sub
Definition: interface.h:698
unsigned short u16
Definition: types.h:57
vnet_mtu_t
Definition: interface.h:640
uword * sw_if_index_by_sup_and_sub
Definition: interface.h:805
vlib_simple_counter_main_t * sw_if_counters
Definition: interface.h:810
vnet_device_class_t vnet_local_interface_device_class
vnet_interface_function_priority_t_
Definition: interface.h:98
uword * hw_interface_class_by_name
Definition: interface.h:798
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
u32 flags
Definition: vhost_user.h:110
vnet_flow_dev_op_t
Definition: interface.h:84
static clib_error_t * admin_up_down_function(vnet_main_t *vm, u32 hw_if_index, u32 flags)
vnet_flood_class_t
Definition: interface.h:626
vnet_link_t_
Link Type: A description of the protocol of packets on the link.
Definition: interface.h:298
static void vnet_interface_counter_unlock(vnet_interface_main_t *im)
Definition: interface.h:836
static int collect_detailed_interface_stats(void)
Definition: interface.h:770
vnet_interface_counter_type_t
Definition: interface.h:706
clib_error_t *( vnet_interface_set_l2_mode_function_t)(struct vnet_main_t *vnm, struct vnet_hw_interface_t *hi, i32 l2_if_adjust)
Definition: interface.h:81
static void vnet_interface_counter_lock(vnet_interface_main_t *im)
Definition: interface.h:828
signed int i32
Definition: types.h:81
enum vnet_interface_function_priority_t_ vnet_interface_function_priority_t
clib_error_t *( vnet_subif_add_del_function_t)(struct vnet_main_t *vnm, u32 if_index, struct vnet_sw_interface_t *template, int is_add)
Definition: interface.h:67
uword * device_class_by_name
Definition: interface.h:799
struct vnet_hw_interface_t vnet_hw_interface_t
struct _vnet_hw_interface_class vnet_hw_interface_class_t
u64 uword
Definition: types.h:112
vnet_sw_interface_t * sw_interfaces
Definition: interface.h:802
a point 2 point interface
Definition: interface.h:345
vnet_hw_interface_class_t * hw_interface_classes
Definition: interface.h:794
A collection of combined counters.
Definition: counter.h:181
u32 min_supported_packet_bytes
Definition: interface.h:531
vnet_hw_interface_rx_mode default_rx_mode
Definition: interface.h:564
vnet_device_class_t * device_classes
Definition: interface.h:795
void collect_detailed_interface_stats_flag_clear(void)
Definition: interface.c:1656
void default_update_adjacency(struct vnet_main_t *vnm, u32 sw_if_index, u32 adj_index)
Default adjacency update function.
Definition: interface.c:1600
int vnet_interface_name_renumber(u32 sw_if_index, u32 new_show_dev_instance)
Definition: interface.c:1393
vnet_hw_interface_class_flags_t_
Attributes assignable to a HW interface Class.
Definition: interface.h:340
int( vnet_flow_dev_ops_function_t)(struct vnet_main_t *vnm, vnet_flow_dev_op_t op, u32 hw_if_index, u32 index, uword *private_data)
Definition: interface.h:93
vnet_sw_interface_type_t
Definition: interface.h:573