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:
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 * interface.c: VNET interfaces/sub-interfaces
18 * Copyright (c) 2008 Eliot Dresselhaus
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:
28 * The above copyright notice and this permission notice shall be
29 * included in all copies or substantial portions of the Software.
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.
40 #include <vnet/vnet.h>
41 #include <vnet/plugin/plugin.h>
42 #include <vnet/adj/adj.h>
43 #include <vnet/adj/adj_mcast.h>
44 #include <vnet/ip/ip.h>
45 #include <vnet/interface/rx_queue_funcs.h>
46 #include <vnet/interface/tx_queue_funcs.h>
49 VLIB_REGISTER_LOG_CLASS (if_default_log, static) = {
50 .class_name = "interface",
54 #define log_debug(fmt,...) vlib_log_debug(if_default_log.class, fmt, __VA_ARGS__)
55 #define log_err(fmt,...) vlib_log_err(if_default_log.class, fmt, __VA_ARGS__)
57 typedef enum vnet_interface_helper_flags_t_
59 VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE = (1 << 0),
60 VNET_INTERFACE_SET_FLAGS_HELPER_WANT_REDISTRIBUTE = (1 << 1),
61 } vnet_interface_helper_flags_t;
63 static clib_error_t *vnet_hw_interface_set_flags_helper (vnet_main_t * vnm,
65 vnet_hw_interface_flags_t
67 vnet_interface_helper_flags_t
70 static clib_error_t *vnet_sw_interface_set_flags_helper (vnet_main_t * vnm,
72 vnet_sw_interface_flags_t
74 vnet_interface_helper_flags_t
77 static clib_error_t *vnet_hw_interface_set_class_helper (vnet_main_t * vnm,
84 /* Either sw or hw interface index. */
89 } vnet_sw_hw_interface_state_t;
92 serialize_vec_vnet_sw_hw_interface_state (serialize_main_t * m, va_list * va)
94 vnet_sw_hw_interface_state_t *s =
95 va_arg (*va, vnet_sw_hw_interface_state_t *);
96 u32 n = va_arg (*va, u32);
98 for (i = 0; i < n; i++)
100 serialize_integer (m, s[i].sw_hw_if_index,
101 sizeof (s[i].sw_hw_if_index));
102 serialize_integer (m, s[i].flags, sizeof (s[i].flags));
107 unserialize_vec_vnet_sw_hw_interface_state (serialize_main_t * m,
110 vnet_sw_hw_interface_state_t *s =
111 va_arg (*va, vnet_sw_hw_interface_state_t *);
112 u32 n = va_arg (*va, u32);
114 for (i = 0; i < n; i++)
116 unserialize_integer (m, &s[i].sw_hw_if_index,
117 sizeof (s[i].sw_hw_if_index));
118 unserialize_integer (m, &s[i].flags, sizeof (s[i].flags));
122 static vnet_sw_interface_flags_t
123 vnet_hw_interface_flags_to_sw (vnet_hw_interface_flags_t hwf)
125 vnet_sw_interface_flags_t swf = VNET_SW_INTERFACE_FLAG_NONE;
127 if (hwf & VNET_HW_INTERFACE_FLAG_LINK_UP)
128 swf |= VNET_SW_INTERFACE_FLAG_ADMIN_UP;
134 serialize_vnet_interface_state (serialize_main_t * m, va_list * va)
136 vnet_main_t *vnm = va_arg (*va, vnet_main_t *);
137 vnet_sw_hw_interface_state_t *sts = 0, *st;
138 vnet_sw_interface_t *sif;
139 vnet_hw_interface_t *hif;
140 vnet_interface_main_t *im = &vnm->interface_main;
142 /* Serialize hardware interface classes since they may have changed.
143 Must do this before sending up/down flags. */
145 pool_foreach (hif, im->hw_interfaces) {
146 vnet_hw_interface_class_t * hw_class = vnet_get_hw_interface_class (vnm, hif->hw_class_index);
147 serialize_cstring (m, hw_class->name);
151 /* Send sw/hw interface state when non-zero. */
153 pool_foreach (sif, im->sw_interfaces) {
156 vec_add2 (sts, st, 1);
157 st->sw_hw_if_index = sif->sw_if_index;
158 st->flags = sif->flags;
163 vec_serialize (m, sts, serialize_vec_vnet_sw_hw_interface_state);
169 pool_foreach (hif, im->hw_interfaces) {
172 vec_add2 (sts, st, 1);
173 st->sw_hw_if_index = hif->hw_if_index;
174 st->flags = vnet_hw_interface_flags_to_sw(hif->flags);
179 vec_serialize (m, sts, serialize_vec_vnet_sw_hw_interface_state);
184 static vnet_hw_interface_flags_t
185 vnet_sw_interface_flags_to_hw (vnet_sw_interface_flags_t swf)
187 vnet_hw_interface_flags_t hwf = VNET_HW_INTERFACE_FLAG_NONE;
189 if (swf & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
190 hwf |= VNET_HW_INTERFACE_FLAG_LINK_UP;
196 unserialize_vnet_interface_state (serialize_main_t * m, va_list * va)
198 vnet_main_t *vnm = va_arg (*va, vnet_main_t *);
199 vnet_sw_hw_interface_state_t *sts = 0, *st;
201 /* First set interface hardware class. */
203 vnet_interface_main_t *im = &vnm->interface_main;
204 vnet_hw_interface_t *hif;
210 pool_foreach (hif, im->hw_interfaces) {
211 unserialize_cstring (m, &class_name);
212 p = hash_get_mem (im->hw_interface_class_by_name, class_name);
215 error = vnet_hw_interface_set_class_helper
216 (vnm, hif->hw_if_index, p[0], /* redistribute */ 0);
219 error = clib_error_return (0, "hw class %s AWOL?", class_name);
222 clib_error_report (error);
223 vec_free (class_name);
228 vec_unserialize (m, &sts, unserialize_vec_vnet_sw_hw_interface_state);
229 vec_foreach (st, sts)
230 vnet_sw_interface_set_flags_helper (vnm, st->sw_hw_if_index, st->flags,
231 /* no distribute */ 0);
234 vec_unserialize (m, &sts, unserialize_vec_vnet_sw_hw_interface_state);
235 vec_foreach (st, sts)
237 vnet_hw_interface_set_flags_helper
238 (vnm, st->sw_hw_if_index, vnet_sw_interface_flags_to_hw (st->flags),
239 /* no distribute */ 0);
244 static clib_error_t *
245 call_elf_section_interface_callbacks (vnet_main_t * vnm, u32 if_index,
247 _vnet_interface_function_list_elt_t **
250 _vnet_interface_function_list_elt_t *elt;
251 vnet_interface_function_priority_t prio;
252 clib_error_t *error = 0;
254 for (prio = VNET_ITF_FUNC_PRIORITY_LOW;
255 prio <= VNET_ITF_FUNC_PRIORITY_HIGH; prio++)
261 error = elt->fp (vnm, if_index, flags);
264 elt = elt->next_interface_function;
270 static clib_error_t *
271 call_hw_interface_add_del_callbacks (vnet_main_t * vnm, u32 hw_if_index,
274 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
275 vnet_hw_interface_class_t *hw_class =
276 vnet_get_hw_interface_class (vnm, hi->hw_class_index);
277 vnet_device_class_t *dev_class =
278 vnet_get_device_class (vnm, hi->dev_class_index);
279 clib_error_t *error = 0;
281 if (hw_class->interface_add_del_function
283 hw_class->interface_add_del_function (vnm, hw_if_index, is_create)))
286 if (dev_class->interface_add_del_function
288 dev_class->interface_add_del_function (vnm, hw_if_index,
292 error = call_elf_section_interface_callbacks
293 (vnm, hw_if_index, is_create, vnm->hw_interface_add_del_functions);
298 static clib_error_t *
299 call_sw_interface_add_del_callbacks (vnet_main_t * vnm, u32 sw_if_index,
302 return call_elf_section_interface_callbacks
303 (vnm, sw_if_index, is_create, vnm->sw_interface_add_del_functions);
306 static clib_error_t *
307 vnet_hw_interface_set_flags_helper (vnet_main_t * vnm, u32 hw_if_index,
308 vnet_hw_interface_flags_t flags,
309 vnet_interface_helper_flags_t
312 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
313 vnet_hw_interface_class_t *hw_class =
314 vnet_get_hw_interface_class (vnm, hi->hw_class_index);
316 clib_error_t *error = 0;
318 (helper_flags & VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE) != 0;
321 (VNET_HW_INTERFACE_FLAG_LINK_UP | VNET_HW_INTERFACE_FLAG_DUPLEX_MASK);
324 /* Call hardware interface add/del callbacks. */
326 call_hw_interface_add_del_callbacks (vnm, hw_if_index, is_create);
328 /* Already in the desired state? */
329 if (!is_create && (hi->flags & mask) == flags)
332 if ((hi->flags & VNET_HW_INTERFACE_FLAG_LINK_UP) !=
333 (flags & VNET_HW_INTERFACE_FLAG_LINK_UP))
335 /* Do hardware class (e.g. ethernet). */
336 if (hw_class->link_up_down_function
337 && (error = hw_class->link_up_down_function (vnm, hw_if_index,
341 error = call_elf_section_interface_callbacks
342 (vnm, hw_if_index, flags, vnm->hw_interface_link_up_down_functions);
353 log_err ("hw_set_flags_helper: %U", format_clib_error, error);
357 static clib_error_t *
358 vnet_sw_interface_set_flags_helper (vnet_main_t * vnm, u32 sw_if_index,
359 vnet_sw_interface_flags_t flags,
360 vnet_interface_helper_flags_t
363 vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
365 clib_error_t *error = 0;
367 (helper_flags & VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE) != 0;
370 mask = VNET_SW_INTERFACE_FLAG_ADMIN_UP | VNET_SW_INTERFACE_FLAG_PUNT;
376 call_sw_interface_add_del_callbacks (vnm, sw_if_index, is_create);
380 if (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
382 /* Notify everyone when the interface is created as admin up */
383 error = call_elf_section_interface_callbacks (vnm, sw_if_index,
386 sw_interface_admin_up_down_functions);
393 vnet_sw_interface_t *si_sup = si;
395 /* Check that super interface is in correct state. */
396 if (si->type == VNET_SW_INTERFACE_TYPE_SUB)
398 si_sup = vnet_get_sw_interface (vnm, si->sup_sw_if_index);
400 /* Check to see if we're bringing down the soft interface and if it's parent is up */
401 if ((flags != (si_sup->flags & mask)) &&
403 && ((si_sup->flags & mask) ==
404 VNET_SW_INTERFACE_FLAG_ADMIN_UP))))
406 error = clib_error_return (0, "super-interface %U must be %U",
407 format_vnet_sw_interface_name, vnm,
409 format_vnet_sw_interface_flags,
415 /* Already in the desired state? */
416 if ((si->flags & mask) == flags)
419 /* Sub-interfaces of hardware interfaces that do no redistribute,
420 do not redistribute themselves. */
421 if (si_sup->type == VNET_SW_INTERFACE_TYPE_HARDWARE)
423 vnet_hw_interface_t *hi =
424 vnet_get_hw_interface (vnm, si_sup->hw_if_index);
425 vnet_device_class_t *dev_class =
426 vnet_get_device_class (vnm, hi->dev_class_index);
427 if (!dev_class->redistribute)
429 ~VNET_INTERFACE_SET_FLAGS_HELPER_WANT_REDISTRIBUTE;
432 /* set the flags now before invoking the registered clients
433 * so that the state they query is consistent with the state here notified */
434 old_flags = si->flags;
437 if ((flags | old_flags) & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
438 error = call_elf_section_interface_callbacks
439 (vnm, sw_if_index, flags,
440 vnm->sw_interface_admin_up_down_functions);
444 /* restore flags on error */
445 si->flags = old_flags;
449 if (si->type == VNET_SW_INTERFACE_TYPE_HARDWARE)
451 vnet_hw_interface_t *hi =
452 vnet_get_hw_interface (vnm, si->hw_if_index);
453 vnet_hw_interface_class_t *hw_class =
454 vnet_get_hw_interface_class (vnm, hi->hw_class_index);
455 vnet_device_class_t *dev_class =
456 vnet_get_device_class (vnm, hi->dev_class_index);
458 if ((flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) &&
459 (si->flags & VNET_SW_INTERFACE_FLAG_ERROR))
461 error = clib_error_return (0, "Interface in the error state");
465 /* update si admin up flag in advance if we are going admin down */
466 if (!(flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP))
467 si->flags &= ~VNET_SW_INTERFACE_FLAG_ADMIN_UP;
469 if (dev_class->admin_up_down_function
470 && (error = dev_class->admin_up_down_function (vnm,
474 /* restore si admin up flag to it's original state on errors */
475 si->flags = old_flags;
479 if (hw_class->admin_up_down_function
480 && (error = hw_class->admin_up_down_function (vnm,
484 /* restore si admin up flag to it's original state on errors */
485 si->flags = old_flags;
489 /* Admin down implies link down. */
490 if (!(flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
491 && (hi->flags & VNET_HW_INTERFACE_FLAG_LINK_UP))
492 vnet_hw_interface_set_flags_helper (vnm, si->hw_if_index,
494 ~VNET_HW_INTERFACE_FLAG_LINK_UP,
496 vnet_hw_if_update_runtime_data (vnm, si->hw_if_index);
505 log_err ("sw_set_flags_helper: %U", format_clib_error, error);
510 vnet_hw_interface_set_flags (vnet_main_t * vnm, u32 hw_if_index,
511 vnet_hw_interface_flags_t flags)
513 log_debug ("hw_set_flags: hw_if_index %u flags 0x%x", hw_if_index, flags);
514 return vnet_hw_interface_set_flags_helper
515 (vnm, hw_if_index, flags,
516 VNET_INTERFACE_SET_FLAGS_HELPER_WANT_REDISTRIBUTE);
520 vnet_sw_interface_set_flags (vnet_main_t * vnm, u32 sw_if_index,
521 vnet_sw_interface_flags_t flags)
523 log_debug ("sw_set_flags: sw_if_index %u flags 0x%x", sw_if_index, flags);
524 return vnet_sw_interface_set_flags_helper
525 (vnm, sw_if_index, flags,
526 VNET_INTERFACE_SET_FLAGS_HELPER_WANT_REDISTRIBUTE);
530 vnet_sw_interface_admin_up (vnet_main_t * vnm, u32 sw_if_index)
532 u32 flags = vnet_sw_interface_get_flags (vnm, sw_if_index);
533 log_debug ("sw_admin_up: sw_if_index %u", sw_if_index);
535 if (!(flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP))
537 flags |= VNET_SW_INTERFACE_FLAG_ADMIN_UP;
538 vnet_sw_interface_set_flags (vnm, sw_if_index, flags);
543 vnet_sw_interface_admin_down (vnet_main_t * vnm, u32 sw_if_index)
545 u32 flags = vnet_sw_interface_get_flags (vnm, sw_if_index);
546 log_debug ("sw_admin_down: sw_if_index %u", sw_if_index);
548 if (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
550 flags &= ~(VNET_SW_INTERFACE_FLAG_ADMIN_UP);
551 vnet_sw_interface_set_flags (vnm, sw_if_index, flags);
556 vnet_if_update_lookup_tables (vnet_main_t *vnm, u32 sw_if_index)
558 vnet_interface_main_t *im = &vnm->interface_main;
559 vnet_hw_interface_t *hi = vnet_get_sup_hw_interface (vnm, sw_if_index);
561 vec_validate_init_empty (im->hw_if_index_by_sw_if_index, sw_if_index, ~0);
562 vec_validate_init_empty (im->if_out_arc_end_next_index_by_sw_if_index,
565 im->hw_if_index_by_sw_if_index[sw_if_index] = hi->hw_if_index;
566 im->if_out_arc_end_next_index_by_sw_if_index[sw_if_index] =
567 hi->if_out_arc_end_node_next_index;
571 vnet_create_sw_interface_no_callbacks (vnet_main_t * vnm,
572 vnet_sw_interface_t * template)
574 vnet_interface_main_t *im = &vnm->interface_main;
575 vnet_sw_interface_t *sw;
578 pool_get (im->sw_interfaces, sw);
579 sw_if_index = sw - im->sw_interfaces;
584 sw->sw_if_index = sw_if_index;
585 if (sw->type == VNET_SW_INTERFACE_TYPE_HARDWARE)
586 sw->sup_sw_if_index = sw->sw_if_index;
588 /* Allocate counters for this interface. */
592 vnet_interface_counter_lock (im);
594 for (i = 0; i < vec_len (im->sw_if_counters); i++)
596 vlib_validate_simple_counter (&im->sw_if_counters[i], sw_if_index);
597 vlib_zero_simple_counter (&im->sw_if_counters[i], sw_if_index);
600 for (i = 0; i < vec_len (im->combined_sw_if_counters); i++)
602 vlib_validate_combined_counter (&im->combined_sw_if_counters[i],
604 vlib_zero_combined_counter (&im->combined_sw_if_counters[i],
608 vnet_interface_counter_unlock (im);
611 vnet_if_update_lookup_tables (vnm, sw_if_index);
616 vnet_create_sw_interface (vnet_main_t * vnm, vnet_sw_interface_t * template,
619 vnet_interface_main_t *im = &vnm->interface_main;
621 vnet_hw_interface_t *hi;
622 vnet_device_class_t *dev_class;
624 if (template->sub.eth.flags.two_tags == 1
625 && template->sub.eth.flags.exact_match == 1
626 && (template->sub.eth.flags.inner_vlan_id_any == 1
627 || template->sub.eth.flags.outer_vlan_id_any == 1))
629 char *str = "inner-dot1q any exact-match is unsupported";
630 error = clib_error_return (0, str);
631 log_err ("create_sw_interface: %s", str);
635 hi = vnet_get_sup_hw_interface (vnm, template->sup_sw_if_index);
636 dev_class = vnet_get_device_class (vnm, hi->dev_class_index);
638 if (template->type == VNET_SW_INTERFACE_TYPE_SUB &&
639 dev_class->subif_add_del_function)
641 error = dev_class->subif_add_del_function (vnm, hi->hw_if_index,
642 (struct vnet_sw_interface_t
648 *sw_if_index = vnet_create_sw_interface_no_callbacks (vnm, template);
649 error = vnet_sw_interface_set_flags_helper
650 (vnm, *sw_if_index, template->flags,
651 VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE);
655 /* undo the work done by vnet_create_sw_interface_no_callbacks() */
656 log_err ("create_sw_interface: set flags failed\n %U",
657 format_clib_error, error);
658 vnet_sw_interface_t *sw =
659 pool_elt_at_index (im->sw_interfaces, *sw_if_index);
660 pool_put (im->sw_interfaces, sw);
664 vnet_sw_interface_t *sw =
665 pool_elt_at_index (im->sw_interfaces, *sw_if_index);
666 log_debug ("create_sw_interface: interface %U (sw_if_index %u) created",
667 format_vnet_sw_interface_name, vnm, sw, *sw_if_index);
674 vnet_delete_sw_interface (vnet_main_t * vnm, u32 sw_if_index)
676 vnet_interface_main_t *im = &vnm->interface_main;
677 vnet_sw_interface_t *sw =
678 pool_elt_at_index (im->sw_interfaces, sw_if_index);
680 log_debug ("delete_sw_interface: sw_if_index %u, name '%U'",
681 sw_if_index, format_vnet_sw_if_index_name, vnm, sw_if_index);
683 /* Check if the interface has config and is removed from L2 BD or XConnect */
684 vnet_clear_sw_interface_tag (vnm, sw_if_index);
686 /* Bring down interface in case it is up. */
688 vnet_sw_interface_set_flags (vnm, sw_if_index, /* flags */ 0);
690 call_sw_interface_add_del_callbacks (vnm, sw_if_index, /* is_create */ 0);
692 pool_put (im->sw_interfaces, sw);
695 static clib_error_t *
696 call_sw_interface_mtu_change_callbacks (vnet_main_t * vnm, u32 sw_if_index)
698 return call_elf_section_interface_callbacks
699 (vnm, sw_if_index, 0, vnm->sw_interface_mtu_change_functions);
703 vnet_sw_interface_set_mtu (vnet_main_t * vnm, u32 sw_if_index, u32 mtu)
705 vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
707 if (si->mtu[VNET_MTU_L3] != mtu)
709 si->mtu[VNET_MTU_L3] = mtu;
710 log_debug ("set_mtu: interface %U, new mtu %u",
711 format_vnet_sw_if_index_name, vnm, sw_if_index, mtu);
713 call_sw_interface_mtu_change_callbacks (vnm, sw_if_index);
718 vnet_sw_interface_set_protocol_mtu (vnet_main_t * vnm, u32 sw_if_index,
721 vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
722 bool changed = false;
725 for (i = 0; i < VNET_N_MTU; i++)
727 if (si->mtu[i] != mtu[i])
733 /* Notify interested parties */
736 log_debug ("set_protocol_mtu: interface %U l3 %u ip4 %u ip6 %u mpls %u",
737 format_vnet_sw_if_index_name, vnm, sw_if_index,
738 mtu[VNET_MTU_L3], mtu[VNET_MTU_IP4], mtu[VNET_MTU_IP6],
740 call_sw_interface_mtu_change_callbacks (vnm, sw_if_index);
745 vnet_sw_interface_ip_directed_broadcast (vnet_main_t * vnm,
746 u32 sw_if_index, u8 enable)
748 vnet_sw_interface_t *si;
750 si = vnet_get_sw_interface (vnm, sw_if_index);
753 si->flags |= VNET_SW_INTERFACE_FLAG_DIRECTED_BCAST;
755 si->flags &= ~VNET_SW_INTERFACE_FLAG_DIRECTED_BCAST;
757 ip4_directed_broadcast (sw_if_index, enable);
761 * Reflect a change in hardware MTU on protocol MTUs
764 sw_interface_walk_callback (vnet_main_t * vnm, u32 sw_if_index, void *ctx)
767 vnet_sw_interface_set_mtu (vnm, sw_if_index, *link_mtu);
768 return WALK_CONTINUE;
772 vnet_hw_interface_set_mtu (vnet_main_t *vnm, u32 hw_if_index, u32 mtu)
774 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
775 vnet_hw_interface_class_t *hw_if_class =
776 vnet_get_hw_interface_class (vnm, hi->hw_class_index);
777 clib_error_t *err = 0;
779 if (hi->max_packet_bytes != mtu)
781 if (mtu > hi->max_supported_packet_bytes ||
782 mtu < hi->min_supported_packet_bytes)
783 return vnet_error (VNET_ERR_INVALID_VALUE,
784 "requested mtu must be in the %u to %u range",
785 hi->min_supported_packet_bytes,
786 hi->max_supported_packet_bytes);
787 if (hw_if_class->set_mtu)
788 if ((err = hw_if_class->set_mtu (vnm, hi, mtu)))
790 hi->max_packet_bytes = mtu;
791 vnet_hw_interface_walk_sw (vnm, hw_if_index, sw_interface_walk_callback,
798 setup_tx_node (vlib_main_t * vm,
799 u32 node_index, vnet_device_class_t * dev_class)
801 vlib_node_t *n = vlib_get_node (vm, node_index);
803 n->format_trace = dev_class->format_tx_trace;
805 vlib_register_errors (vm, node_index, dev_class->tx_function_n_errors,
806 dev_class->tx_function_error_strings,
807 dev_class->tx_function_error_counters);
811 setup_output_node (vlib_main_t * vm,
812 u32 node_index, vnet_hw_interface_class_t * hw_class)
814 vlib_node_t *n = vlib_get_node (vm, node_index);
815 n->format_buffer = hw_class->format_header;
816 n->unformat_buffer = hw_class->unformat_header;
820 vnet_reset_interface_l3_output_node (vlib_main_t *vm, u32 sw_if_index)
822 vnet_set_interface_l3_output_node (vm, sw_if_index,
823 (u8 *) "interface-output");
827 vnet_set_interface_l3_output_node (vlib_main_t *vm, u32 sw_if_index,
830 vlib_node_t *l3_node;
832 l3_node = vlib_get_node_by_name (vm, output_node);
834 static char *arcs[] = {
842 for (a = 0; a < ARRAY_LEN (arcs); a++)
844 u8 arc = vnet_get_feature_arc_index (arcs[a]);
845 vnet_feature_modify_end_node (arc, sw_if_index, l3_node->index);
849 /* Register an interface instance. */
851 vnet_register_interface (vnet_main_t * vnm,
854 u32 hw_class_index, u32 hw_instance)
856 vnet_interface_main_t *im = &vnm->interface_main;
857 vnet_hw_interface_t *hw;
858 vnet_device_class_t *dev_class =
859 vnet_get_device_class (vnm, dev_class_index);
860 vnet_hw_interface_class_t *hw_class =
861 vnet_get_hw_interface_class (vnm, hw_class_index);
862 vlib_main_t *vm = vnm->vlib_main;
863 vnet_feature_config_main_t *fcm;
864 vnet_config_main_t *cm;
866 char *tx_node_name = NULL, *output_node_name = NULL;
867 vlib_node_t *if_out_node =
868 vlib_get_node (vm, vnet_interface_output_node.index);
870 pool_get (im->hw_interfaces, hw);
871 clib_memset (hw, 0, sizeof (*hw));
872 hw->trace_classify_table_index = ~0;
874 hw_index = hw - im->hw_interfaces;
875 hw->hw_if_index = hw_index;
876 hw->default_rx_mode = VNET_HW_IF_RX_MODE_POLLING;
878 if (hw_class->tx_hash_fn_type == VNET_HASH_FN_TYPE_ETHERNET ||
879 hw_class->tx_hash_fn_type == VNET_HASH_FN_TYPE_IP)
880 hw->hf = vnet_hash_default_function (hw_class->tx_hash_fn_type);
882 if (dev_class->format_device_name)
883 hw->name = format (0, "%U", dev_class->format_device_name, dev_instance);
884 else if (hw_class->format_interface_name)
885 hw->name = format (0, "%U", hw_class->format_interface_name,
888 hw->name = format (0, "%s%x", hw_class->name, dev_instance);
890 if (!im->hw_interface_by_name)
891 im->hw_interface_by_name = hash_create_vec ( /* size */ 0,
892 sizeof (hw->name[0]),
895 hash_set_mem (im->hw_interface_by_name, hw->name, hw_index);
897 /* Make hardware interface point to software interface. */
899 vnet_sw_interface_t sw = {
900 .type = VNET_SW_INTERFACE_TYPE_HARDWARE,
901 .flood_class = VNET_FLOOD_CLASS_NORMAL,
902 .hw_if_index = hw_index
904 hw->sw_if_index = vnet_create_sw_interface_no_callbacks (vnm, &sw);
907 hw->dev_class_index = dev_class_index;
908 hw->dev_instance = dev_instance;
909 hw->hw_class_index = hw_class_index;
910 hw->hw_instance = hw_instance;
912 hw->max_rate_bits_per_sec = 0;
913 hw->min_packet_bytes = 0;
914 vnet_sw_interface_set_mtu (vnm, hw->sw_if_index, 0);
916 if (dev_class->tx_function == 0 && dev_class->tx_fn_registrations == 0)
917 goto no_output_nodes; /* No output/tx nodes to create */
919 tx_node_name = (char *) format (0, "%v-tx", hw->name);
920 output_node_name = (char *) format (0, "%v-output", hw->name);
922 /* If we have previously deleted interface nodes, re-use them. */
923 if (vec_len (im->deleted_hw_interface_nodes) > 0)
925 vnet_hw_interface_nodes_t *hn;
927 vlib_node_runtime_t *nrt;
929 hn = vec_end (im->deleted_hw_interface_nodes) - 1;
931 hw->tx_node_index = hn->tx_node_index;
932 hw->output_node_index = hn->output_node_index;
934 vlib_node_rename (vm, hw->tx_node_index, "%v", tx_node_name);
935 vlib_node_rename (vm, hw->output_node_index, "%v", output_node_name);
939 vnet_interface_output_runtime_t *rt;
942 vlib_node_get_runtime_data (this_vlib_main, hw->output_node_index);
943 ASSERT (rt->is_deleted == 1);
945 rt->hw_if_index = hw_index;
946 rt->sw_if_index = hw->sw_if_index;
947 rt->dev_instance = hw->dev_instance;
949 rt = vlib_node_get_runtime_data (this_vlib_main, hw->tx_node_index);
950 rt->hw_if_index = hw_index;
951 rt->sw_if_index = hw->sw_if_index;
952 rt->dev_instance = hw->dev_instance;
955 /* The new class may differ from the old one.
956 * Functions have to be updated. */
957 node = vlib_get_node (vm, hw->output_node_index);
958 node->format_trace = format_vnet_interface_output_trace;
959 node->node_fn_registrations = if_out_node->node_fn_registrations;
960 node->function = if_out_node->function;
964 nrt = vlib_node_get_runtime (this_vlib_main, hw->output_node_index);
965 nrt->function = node->function;
966 vlib_node_runtime_perf_counter (this_vlib_main, nrt, 0, 0, 0,
967 VLIB_NODE_RUNTIME_PERF_RESET);
970 node = vlib_get_node (vm, hw->tx_node_index);
971 if (dev_class->tx_fn_registrations)
973 node->node_fn_registrations = dev_class->tx_fn_registrations;
974 node->function = vlib_node_get_preferred_node_fn_variant (
975 vm, dev_class->tx_fn_registrations);
978 node->function = dev_class->tx_function;
979 node->format_trace = dev_class->format_tx_trace;
983 nrt = vlib_node_get_runtime (this_vlib_main, hw->tx_node_index);
984 nrt->function = node->function;
985 vlib_node_runtime_perf_counter (this_vlib_main, nrt, 0, 0, 0,
986 VLIB_NODE_RUNTIME_PERF_RESET);
989 _vec_len (im->deleted_hw_interface_nodes) -= 1;
993 vlib_node_registration_t r;
994 vnet_interface_output_runtime_t rt = {
995 .hw_if_index = hw_index,
996 .sw_if_index = hw->sw_if_index,
997 .dev_instance = hw->dev_instance,
1001 clib_memset (&r, 0, sizeof (r));
1002 r.type = VLIB_NODE_TYPE_INTERNAL;
1003 r.runtime_data = &rt;
1004 r.runtime_data_bytes = sizeof (rt);
1005 r.scalar_size = sizeof (vnet_hw_if_tx_frame_t);
1006 r.vector_size = sizeof (u32);
1008 r.flags = VLIB_NODE_FLAG_IS_OUTPUT;
1009 r.name = tx_node_name;
1010 if (dev_class->tx_fn_registrations)
1013 r.node_fn_registrations = dev_class->tx_fn_registrations;
1016 r.function = dev_class->tx_function;
1018 hw->tx_node_index = vlib_register_node (vm, &r);
1020 vlib_node_add_named_next_with_slot (vm, hw->tx_node_index,
1022 VNET_INTERFACE_TX_NEXT_DROP);
1025 r.name = output_node_name;
1026 r.format_trace = format_vnet_interface_output_trace;
1027 if (if_out_node->node_fn_registrations)
1030 r.node_fn_registrations = if_out_node->node_fn_registrations;
1033 r.function = if_out_node->function;
1036 static char *e[] = {
1037 "interface is down",
1038 "interface is deleted",
1039 "no tx queue available",
1042 r.n_errors = ARRAY_LEN (e);
1043 r.error_strings = e;
1045 hw->output_node_index = vlib_register_node (vm, &r);
1047 vlib_node_add_named_next_with_slot (vm, hw->output_node_index,
1049 VNET_INTERFACE_OUTPUT_NEXT_DROP);
1050 vlib_node_add_next_with_slot (vm, hw->output_node_index,
1052 VNET_INTERFACE_OUTPUT_NEXT_TX);
1053 /* add interface to the list of "output-interface" feature arc start nodes
1054 and clone nexts from 1st interface if it exists */
1055 fcm = vnet_feature_get_config_main (im->output_feature_arc_index);
1056 cm = &fcm->config_main;
1057 i = vec_len (cm->start_node_indices);
1058 vec_validate (cm->start_node_indices, i);
1059 cm->start_node_indices[i] = hw->output_node_index;
1062 /* copy nexts from 1st interface */
1063 vnet_hw_interface_t *first_hw;
1064 vlib_node_t *first_node;
1066 first_hw = vnet_get_hw_interface (vnm, /* hw_if_index */ 0);
1067 first_node = vlib_get_node (vm, first_hw->output_node_index);
1069 /* 1st 2 nexts are already added above */
1070 for (i = 2; i < vec_len (first_node->next_nodes); i++)
1071 vlib_node_add_next_with_slot (vm, hw->output_node_index,
1072 first_node->next_nodes[i], i);
1076 hw->if_out_arc_end_node_next_index = vlib_node_add_next (
1077 vm, vnet_interface_output_arc_end_node.index, hw->tx_node_index);
1078 vnet_if_update_lookup_tables (vnm, hw->sw_if_index);
1079 setup_output_node (vm, hw->output_node_index, hw_class);
1080 setup_tx_node (vm, hw->tx_node_index, dev_class);
1083 /* Call all up/down callbacks with zero flags when interface is created. */
1084 vnet_sw_interface_set_flags_helper (vnm, hw->sw_if_index, /* flags */ 0,
1085 VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE);
1086 vnet_hw_interface_set_flags_helper (vnm, hw_index, /* flags */ 0,
1087 VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE);
1088 vec_free (tx_node_name);
1089 vec_free (output_node_name);
1095 vnet_delete_hw_interface (vnet_main_t * vnm, u32 hw_if_index)
1097 vnet_interface_main_t *im = &vnm->interface_main;
1098 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
1099 vlib_main_t *vm = vnm->vlib_main;
1100 vnet_device_class_t *dev_class = vnet_get_device_class (vnm,
1101 hw->dev_class_index);
1102 /* If it is up, mark it down. */
1104 vnet_hw_interface_set_flags (vnm, hw_if_index, /* flags */ 0);
1106 /* Call delete callbacks. */
1107 call_hw_interface_add_del_callbacks (vnm, hw_if_index, /* is_create */ 0);
1109 /* delete rx & tx queues */
1110 vnet_hw_if_unregister_all_rx_queues (vnm, hw_if_index);
1111 vnet_hw_if_unregister_all_tx_queues (vnm, hw_if_index);
1112 vnet_hw_if_update_runtime_data (vnm, hw_if_index);
1114 /* Delete any sub-interfaces. */
1116 u32 id, sw_if_index;
1118 hash_foreach (id, sw_if_index, hw->sub_interface_sw_if_index_by_id,
1120 vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
1121 u64 sup_and_sub_key =
1122 ((u64) (si->sup_sw_if_index) << 32) | (u64) si->sub.id;
1123 hash_unset_mem_free (&im->sw_if_index_by_sup_and_sub, &sup_and_sub_key);
1124 vnet_delete_sw_interface (vnm, sw_if_index);
1126 hash_free (hw->sub_interface_sw_if_index_by_id);
1130 /* Delete software interface corresponding to hardware interface. */
1131 vnet_delete_sw_interface (vnm, hw->sw_if_index);
1133 if (dev_class->tx_function)
1135 /* Put output/tx nodes into recycle pool */
1136 vnet_hw_interface_nodes_t *dn;
1138 foreach_vlib_main ()
1140 vnet_interface_output_runtime_t *rt =
1141 vlib_node_get_runtime_data (this_vlib_main, hw->output_node_index);
1143 /* Mark node runtime as deleted so output node (if called)
1144 * will drop packets. */
1148 vlib_node_rename (vm, hw->output_node_index,
1149 "interface-%d-output-deleted", hw_if_index);
1150 vlib_node_rename (vm, hw->tx_node_index, "interface-%d-tx-deleted",
1152 vec_add2 (im->deleted_hw_interface_nodes, dn, 1);
1153 dn->tx_node_index = hw->tx_node_index;
1154 dn->output_node_index = hw->output_node_index;
1156 hash_unset_mem (im->hw_interface_by_name, hw->name);
1157 vec_free (hw->name);
1158 vec_free (hw->hw_address);
1159 vec_free (hw->output_node_thread_runtimes);
1160 pool_put (im->hw_interfaces, hw);
1164 vnet_hw_interface_walk_sw (vnet_main_t * vnm,
1166 vnet_hw_sw_interface_walk_t fn, void *ctx)
1168 vnet_hw_interface_t *hi;
1169 u32 id, sw_if_index;
1171 hi = vnet_get_hw_interface (vnm, hw_if_index);
1172 /* the super first, then the sub interfaces */
1173 if (WALK_STOP == fn (vnm, hi->sw_if_index, ctx))
1177 hash_foreach (id, sw_if_index,
1178 hi->sub_interface_sw_if_index_by_id,
1180 if (WALK_STOP == fn (vnm, sw_if_index, ctx))
1187 vnet_hw_interface_walk (vnet_main_t * vnm,
1188 vnet_hw_interface_walk_t fn, void *ctx)
1190 vnet_interface_main_t *im;
1191 vnet_hw_interface_t *hi;
1193 im = &vnm->interface_main;
1196 pool_foreach (hi, im->hw_interfaces)
1198 if (WALK_STOP == fn(vnm, hi->hw_if_index, ctx))
1205 vnet_sw_interface_walk (vnet_main_t * vnm,
1206 vnet_sw_interface_walk_t fn, void *ctx)
1208 vnet_interface_main_t *im;
1209 vnet_sw_interface_t *si;
1211 im = &vnm->interface_main;
1214 pool_foreach (si, im->sw_interfaces)
1216 if (WALK_STOP == fn (vnm, si, ctx))
1223 vnet_hw_interface_init_for_class (vnet_main_t * vnm, u32 hw_if_index,
1224 u32 hw_class_index, u32 hw_instance)
1226 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1227 vnet_hw_interface_class_t *hc =
1228 vnet_get_hw_interface_class (vnm, hw_class_index);
1230 hi->hw_class_index = hw_class_index;
1231 hi->hw_instance = hw_instance;
1232 setup_output_node (vnm->vlib_main, hi->output_node_index, hc);
1235 static clib_error_t *
1236 vnet_hw_interface_set_class_helper (vnet_main_t * vnm, u32 hw_if_index,
1237 u32 hw_class_index, u32 redistribute)
1239 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1240 vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, hi->sw_if_index);
1241 vnet_hw_interface_class_t *old_class =
1242 vnet_get_hw_interface_class (vnm, hi->hw_class_index);
1243 vnet_hw_interface_class_t *new_class =
1244 vnet_get_hw_interface_class (vnm, hw_class_index);
1245 vnet_device_class_t *dev_class =
1246 vnet_get_device_class (vnm, hi->dev_class_index);
1247 clib_error_t *error = 0;
1249 /* New class equals old class? Nothing to do. */
1250 if (hi->hw_class_index == hw_class_index)
1253 /* No need (and incorrect since admin up flag may be set) to do error checking when
1254 receiving unserialize message. */
1257 if (si->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
1258 return clib_error_return (0,
1259 "%v must be admin down to change class from %s to %s",
1260 hi->name, old_class->name, new_class->name);
1262 /* Make sure interface supports given class. */
1263 if ((new_class->is_valid_class_for_interface
1264 && !new_class->is_valid_class_for_interface (vnm, hw_if_index,
1266 || (dev_class->is_valid_class_for_interface
1267 && !dev_class->is_valid_class_for_interface (vnm, hw_if_index,
1269 return clib_error_return (0,
1270 "%v class cannot be changed from %s to %s",
1271 hi->name, old_class->name, new_class->name);
1275 if (old_class->hw_class_change)
1276 old_class->hw_class_change (vnm, hw_if_index, old_class->index,
1279 vnet_hw_interface_init_for_class (vnm, hw_if_index, new_class->index,
1282 if (new_class->hw_class_change)
1283 new_class->hw_class_change (vnm, hw_if_index, old_class->index,
1286 if (dev_class->hw_class_change)
1287 dev_class->hw_class_change (vnm, hw_if_index, new_class->index);
1293 vnet_hw_interface_set_class (vnet_main_t * vnm, u32 hw_if_index,
1296 return vnet_hw_interface_set_class_helper (vnm, hw_if_index, hw_class_index,
1297 /* redistribute */ 1);
1301 vnet_hw_interface_rx_redirect_to_node_helper (vnet_main_t * vnm,
1306 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1307 vnet_device_class_t *dev_class = vnet_get_device_class
1308 (vnm, hi->dev_class_index);
1310 if (dev_class->rx_redirect_to_node)
1312 dev_class->rx_redirect_to_node (vnm, hw_if_index, node_index);
1316 return VNET_API_ERROR_UNIMPLEMENTED;
1320 vnet_hw_interface_rx_redirect_to_node (vnet_main_t * vnm, u32 hw_if_index,
1323 return vnet_hw_interface_rx_redirect_to_node_helper (vnm, hw_if_index,
1325 1 /* redistribute */ );
1329 vnet_sw_interface_compare (vnet_main_t * vnm,
1330 uword sw_if_index0, uword sw_if_index1)
1332 vnet_sw_interface_t *sup0 = vnet_get_sup_sw_interface (vnm, sw_if_index0);
1333 vnet_sw_interface_t *sup1 = vnet_get_sup_sw_interface (vnm, sw_if_index1);
1334 vnet_hw_interface_t *h0 = vnet_get_hw_interface (vnm, sup0->hw_if_index);
1335 vnet_hw_interface_t *h1 = vnet_get_hw_interface (vnm, sup1->hw_if_index);
1338 return vec_cmp (h0->name, h1->name);
1339 return (word) h0->hw_instance - (word) h1->hw_instance;
1343 vnet_hw_interface_compare (vnet_main_t * vnm,
1344 uword hw_if_index0, uword hw_if_index1)
1346 vnet_hw_interface_t *h0 = vnet_get_hw_interface (vnm, hw_if_index0);
1347 vnet_hw_interface_t *h1 = vnet_get_hw_interface (vnm, hw_if_index1);
1350 return vec_cmp (h0->name, h1->name);
1351 return (word) h0->hw_instance - (word) h1->hw_instance;
1355 vnet_sw_interface_is_p2p (vnet_main_t * vnm, u32 sw_if_index)
1357 vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
1358 if ((si->type == VNET_SW_INTERFACE_TYPE_P2P) ||
1359 (si->type == VNET_SW_INTERFACE_TYPE_PIPE))
1362 vnet_hw_interface_t *hw = vnet_get_sup_hw_interface (vnm, sw_if_index);
1363 vnet_hw_interface_class_t *hc =
1364 vnet_get_hw_interface_class (vnm, hw->hw_class_index);
1366 return (hc->flags & VNET_HW_INTERFACE_CLASS_FLAG_P2P);
1370 vnet_sw_interface_is_nbma (vnet_main_t * vnm, u32 sw_if_index)
1372 vnet_hw_interface_t *hw = vnet_get_sup_hw_interface (vnm, sw_if_index);
1373 vnet_hw_interface_class_t *hc =
1374 vnet_get_hw_interface_class (vnm, hw->hw_class_index);
1376 return (hc->flags & VNET_HW_INTERFACE_CLASS_FLAG_NBMA);
1380 vnet_sw_interface_supports_addressing (vnet_main_t *vnm, u32 sw_if_index)
1382 if (sw_if_index == 0)
1384 return clib_error_create (
1385 "local0 interface doesn't support IP addressing");
1388 if (vnet_sw_interface_is_sub (vnm, sw_if_index))
1390 vnet_sw_interface_t *si;
1391 si = vnet_get_sw_interface_or_null (vnm, sw_if_index);
1392 if (si && si->type == VNET_SW_INTERFACE_TYPE_SUB &&
1393 si->sub.eth.flags.exact_match == 0)
1395 return clib_error_create (
1396 "sub-interface without exact-match doesn't support IP addressing");
1403 vnet_interface_init (vlib_main_t * vm)
1405 vnet_main_t *vnm = vnet_get_main ();
1406 vnet_interface_main_t *im = &vnm->interface_main;
1407 vlib_buffer_t *b = 0;
1408 vnet_buffer_opaque_t *o = 0;
1409 clib_error_t *error;
1412 * Keep people from shooting themselves in the foot.
1414 if (sizeof (b->opaque) != sizeof (vnet_buffer_opaque_t))
1416 #define _(a) if (sizeof(o->a) > sizeof (o->unused)) \
1418 ("FATAL: size of opaque union subtype %s is %d (max %d)", \
1419 #a, sizeof(o->a), sizeof (o->unused));
1420 foreach_buffer_opaque_union_subtype;
1423 return clib_error_return
1424 (0, "FATAL: size of vlib buffer opaque %d, size of vnet opaque %d",
1425 sizeof (b->opaque), sizeof (vnet_buffer_opaque_t));
1428 clib_spinlock_init (&im->sw_if_counter_lock);
1429 clib_spinlock_lock (&im->sw_if_counter_lock); /* should be no need */
1431 vec_validate (im->sw_if_counters, VNET_N_SIMPLE_INTERFACE_COUNTER - 1);
1433 im->sw_if_counters[VNET_INTERFACE_COUNTER_##E].name = #n; \
1434 im->sw_if_counters[VNET_INTERFACE_COUNTER_##E].stat_segment_name = "/" #p "/" #n;
1435 foreach_simple_interface_counter_name
1437 vec_validate (im->combined_sw_if_counters,
1438 VNET_N_COMBINED_INTERFACE_COUNTER - 1);
1440 im->combined_sw_if_counters[VNET_INTERFACE_COUNTER_##E].name = #n; \
1441 im->combined_sw_if_counters[VNET_INTERFACE_COUNTER_##E].stat_segment_name = "/" #p "/" #n;
1442 foreach_combined_interface_counter_name
1444 clib_spinlock_unlock (&im->sw_if_counter_lock);
1446 im->device_class_by_name = hash_create_string ( /* size */ 0,
1449 vnet_device_class_t *c;
1451 c = vnm->device_class_registrations;
1455 c->index = vec_len (im->device_classes);
1456 hash_set_mem (im->device_class_by_name, c->name, c->index);
1458 /* to avoid confusion, please remove ".tx_function" statement
1459 from VNET_DEVICE_CLASS() if using function candidates */
1460 ASSERT (c->tx_fn_registrations == 0 || c->tx_function == 0);
1462 if (c->tx_fn_registrations)
1463 c->tx_function = vlib_node_get_preferred_node_fn_variant (
1464 vm, c->tx_fn_registrations);
1466 vec_add1 (im->device_classes, c[0]);
1467 c = c->next_class_registration;
1471 im->hw_interface_class_by_name = hash_create_string ( /* size */ 0,
1474 im->rxq_index_by_hw_if_index_and_queue_id =
1475 hash_create_mem (0, sizeof (u64), sizeof (u32));
1476 im->txq_index_by_hw_if_index_and_queue_id =
1477 hash_create_mem (0, sizeof (u64), sizeof (u32));
1478 im->sw_if_index_by_sup_and_sub = hash_create_mem (0, sizeof (u64),
1481 vnet_hw_interface_class_t *c;
1483 c = vnm->hw_interface_class_registrations;
1487 c->index = vec_len (im->hw_interface_classes);
1488 hash_set_mem (im->hw_interface_class_by_name, c->name, c->index);
1490 if (NULL == c->build_rewrite)
1491 c->build_rewrite = default_build_rewrite;
1492 if (NULL == c->update_adjacency)
1493 c->update_adjacency = default_update_adjacency;
1495 vec_add1 (im->hw_interface_classes, c[0]);
1496 c = c->next_class_registration;
1500 /* init per-thread data */
1501 vec_validate_aligned (im->per_thread_data, vlib_num_workers (),
1502 CLIB_CACHE_LINE_BYTES);
1504 if ((error = vlib_call_init_function (vm, vnet_interface_cli_init)))
1507 vnm->interface_tag_by_sw_if_index = hash_create (0, sizeof (uword));
1512 VLIB_INIT_FUNCTION (vnet_interface_init);
1514 /* Kludge to renumber interface names [only!] */
1516 vnet_interface_name_renumber (u32 sw_if_index, u32 new_show_dev_instance)
1519 vnet_main_t *vnm = vnet_get_main ();
1520 vnet_interface_main_t *im = &vnm->interface_main;
1521 vnet_hw_interface_t *hi = vnet_get_sup_hw_interface (vnm, sw_if_index);
1523 vnet_device_class_t *dev_class = vnet_get_device_class
1524 (vnm, hi->dev_class_index);
1526 if (dev_class->name_renumber == 0 || dev_class->format_device_name == 0)
1527 return VNET_API_ERROR_UNIMPLEMENTED;
1529 rv = dev_class->name_renumber (hi, new_show_dev_instance);
1534 hash_unset_mem (im->hw_interface_by_name, hi->name);
1535 vec_free (hi->name);
1536 /* Use the mapping we set up to call it Ishmael */
1537 hi->name = format (0, "%U", dev_class->format_device_name,
1540 hash_set_mem (im->hw_interface_by_name, hi->name, hi->hw_if_index);
1545 vnet_rename_interface (vnet_main_t * vnm, u32 hw_if_index, char *new_name)
1547 vnet_interface_main_t *im = &vnm->interface_main;
1548 vlib_main_t *vm = vnm->vlib_main;
1549 vnet_hw_interface_t *hw;
1551 clib_error_t *error = 0;
1553 hw = vnet_get_hw_interface (vnm, hw_if_index);
1556 return clib_error_return (0,
1557 "unable to find hw interface for index %u",
1561 old_name = hw->name;
1563 /* set new hw->name */
1564 hw->name = format (0, "%s", new_name);
1566 /* remove the old name to hw_if_index mapping and install the new one */
1567 hash_unset_mem (im->hw_interface_by_name, old_name);
1568 hash_set_mem (im->hw_interface_by_name, hw->name, hw_if_index);
1570 /* rename tx/output nodes */
1571 vlib_node_rename (vm, hw->tx_node_index, "%v-tx", hw->name);
1572 vlib_node_rename (vm, hw->output_node_index, "%v-output", hw->name);
1574 /* free the old name vector */
1575 vec_free (old_name);
1581 vnet_hw_interface_add_del_mac_address (vnet_main_t * vnm,
1583 const u8 * mac_address, u8 is_add)
1585 clib_error_t *error = 0;
1586 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1588 vnet_device_class_t *dev_class =
1589 vnet_get_device_class (vnm, hi->dev_class_index);
1591 if (!hi->hw_address)
1595 (0, "Secondary MAC Addresses not supported for interface index %u",
1600 if (dev_class->mac_addr_add_del_function)
1601 error = dev_class->mac_addr_add_del_function (hi, mac_address, is_add);
1605 vnet_hw_interface_class_t *hw_class;
1607 hw_class = vnet_get_hw_interface_class (vnm, hi->hw_class_index);
1609 if (NULL != hw_class->mac_addr_add_del_function)
1610 error = hw_class->mac_addr_add_del_function (hi, mac_address, is_add);
1613 /* If no errors, add to the list of secondary MACs on the ethernet intf */
1615 ethernet_interface_add_del_address (ðernet_main, hw_if_index,
1616 mac_address, is_add);
1620 log_err ("hw_add_del_mac_address: %U", format_clib_error, error);
1624 static clib_error_t *
1625 vnet_hw_interface_change_mac_address_helper (vnet_main_t * vnm,
1627 const u8 * mac_address)
1629 clib_error_t *error = 0;
1630 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1634 u8 *old_address = vec_dup (hi->hw_address);
1635 vnet_device_class_t *dev_class =
1636 vnet_get_device_class (vnm, hi->dev_class_index);
1637 if (dev_class->mac_addr_change_function)
1640 dev_class->mac_addr_change_function (hi, old_address,
1645 vnet_hw_interface_class_t *hw_class;
1647 hw_class = vnet_get_hw_interface_class (vnm, hi->hw_class_index);
1649 if (NULL != hw_class->mac_addr_change_function)
1650 hw_class->mac_addr_change_function (hi, old_address, mac_address);
1655 clib_error_return (0,
1656 "MAC Address Change is not supported on this interface");
1658 vec_free (old_address);
1663 clib_error_return (0,
1664 "mac address change is not supported for interface index %u",
1671 vnet_hw_interface_change_mac_address (vnet_main_t * vnm, u32 hw_if_index,
1672 const u8 * mac_address)
1674 return vnet_hw_interface_change_mac_address_helper
1675 (vnm, hw_if_index, mac_address);
1679 vnet_sw_interface_check_table_same (u32 unnumbered_sw_if_index,
1682 if (ip4_main.fib_index_by_sw_if_index[unnumbered_sw_if_index] !=
1683 ip4_main.fib_index_by_sw_if_index[ip_sw_if_index])
1684 return VNET_API_ERROR_UNEXPECTED_INTF_STATE;
1686 if (ip4_main.mfib_index_by_sw_if_index[unnumbered_sw_if_index] !=
1687 ip4_main.mfib_index_by_sw_if_index[ip_sw_if_index])
1688 return VNET_API_ERROR_UNEXPECTED_INTF_STATE;
1690 if (ip6_main.fib_index_by_sw_if_index[unnumbered_sw_if_index] !=
1691 ip6_main.fib_index_by_sw_if_index[ip_sw_if_index])
1692 return VNET_API_ERROR_UNEXPECTED_INTF_STATE;
1694 if (ip6_main.mfib_index_by_sw_if_index[unnumbered_sw_if_index] !=
1695 ip6_main.mfib_index_by_sw_if_index[ip_sw_if_index])
1696 return VNET_API_ERROR_UNEXPECTED_INTF_STATE;
1701 /* update the unnumbered state of an interface*/
1703 vnet_sw_interface_update_unnumbered (u32 unnumbered_sw_if_index,
1704 u32 ip_sw_if_index, u8 enable)
1706 vnet_main_t *vnm = vnet_get_main ();
1707 vnet_sw_interface_t *si;
1711 si = vnet_get_sw_interface (vnm, unnumbered_sw_if_index);
1712 was_unnum = (si->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED);
1716 rv = vnet_sw_interface_check_table_same (unnumbered_sw_if_index,
1720 si->flags |= VNET_SW_INTERFACE_FLAG_UNNUMBERED;
1721 si->unnumbered_sw_if_index = ip_sw_if_index;
1723 ip4_main.lookup_main.if_address_pool_index_by_sw_if_index
1724 [unnumbered_sw_if_index] =
1726 lookup_main.if_address_pool_index_by_sw_if_index[ip_sw_if_index];
1728 lookup_main.if_address_pool_index_by_sw_if_index
1729 [unnumbered_sw_if_index] =
1731 lookup_main.if_address_pool_index_by_sw_if_index[ip_sw_if_index];
1736 * Unless the interface is actually unnumbered, don't
1737 * smash e.g. if_address_pool_index_by_sw_if_index
1739 if (si->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED)
1741 si->flags &= ~(VNET_SW_INTERFACE_FLAG_UNNUMBERED);
1742 si->unnumbered_sw_if_index = (u32) ~0;
1744 ip4_main.lookup_main
1745 .if_address_pool_index_by_sw_if_index[unnumbered_sw_if_index] = ~0;
1746 ip6_main.lookup_main
1747 .if_address_pool_index_by_sw_if_index[unnumbered_sw_if_index] = ~0;
1751 if (was_unnum != (si->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED))
1753 ip4_sw_interface_enable_disable (unnumbered_sw_if_index, enable);
1754 ip6_sw_interface_enable_disable (unnumbered_sw_if_index, enable);
1760 vnet_l3_packet_type_t
1761 vnet_link_to_l3_proto (vnet_link_t link)
1766 return (VNET_L3_PACKET_TYPE_IP4);
1768 return (VNET_L3_PACKET_TYPE_IP6);
1769 case VNET_LINK_MPLS:
1770 return (VNET_L3_PACKET_TYPE_MPLS);
1772 return (VNET_L3_PACKET_TYPE_ARP);
1773 case VNET_LINK_ETHERNET:
1783 vnet_link_to_mtu (vnet_link_t link)
1788 return (VNET_MTU_IP4);
1790 return (VNET_MTU_IP6);
1791 case VNET_LINK_MPLS:
1792 return (VNET_MTU_MPLS);
1794 return (VNET_MTU_L3);
1799 default_build_rewrite (vnet_main_t * vnm,
1801 vnet_link_t link_type, const void *dst_address)
1807 default_update_adjacency (vnet_main_t * vnm, u32 sw_if_index, u32 ai)
1809 ip_adjacency_t *adj;
1813 switch (adj->lookup_next_index)
1815 case IP_LOOKUP_NEXT_GLEAN:
1816 adj_glean_update_rewrite (ai);
1818 case IP_LOOKUP_NEXT_ARP:
1819 case IP_LOOKUP_NEXT_BCAST:
1821 * default rewrite in neighbour adj
1823 adj_nbr_update_rewrite
1825 ADJ_NBR_REWRITE_FLAG_COMPLETE,
1826 vnet_build_rewrite_for_sw_interface (vnm,
1828 adj_get_link_type (ai), NULL));
1830 case IP_LOOKUP_NEXT_MCAST:
1832 * mcast traffic also uses default rewrite string with no mcast
1833 * switch time updates.
1835 adj_mcast_update_rewrite
1837 vnet_build_rewrite_for_sw_interface (vnm,
1839 adj_get_link_type (ai),
1842 case IP_LOOKUP_NEXT_DROP:
1843 case IP_LOOKUP_NEXT_PUNT:
1844 case IP_LOOKUP_NEXT_LOCAL:
1845 case IP_LOOKUP_NEXT_REWRITE:
1846 case IP_LOOKUP_NEXT_MCAST_MIDCHAIN:
1847 case IP_LOOKUP_NEXT_MIDCHAIN:
1848 case IP_LOOKUP_NEXT_ICMP_ERROR:
1849 case IP_LOOKUP_N_NEXT:
1856 vnet_hw_interface_set_rss_queues (vnet_main_t * vnm,
1857 vnet_hw_interface_t * hi,
1858 clib_bitmap_t * bitmap)
1860 clib_error_t *error = 0;
1861 vnet_device_class_t *dev_class =
1862 vnet_get_device_class (vnm, hi->dev_class_index);
1864 if (dev_class->set_rss_queues_function)
1866 if (clib_bitmap_count_set_bits (bitmap) == 0)
1868 error = clib_error_return (0,
1869 "must assign at least one valid rss queue");
1873 error = dev_class->set_rss_queues_function (vnm, hi, bitmap);
1877 error = clib_error_return (0,
1878 "setting rss queues is not supported on this interface");
1883 clib_bitmap_free (hi->rss_queues);
1884 hi->rss_queues = clib_bitmap_dup (bitmap);
1889 log_err ("hw_set_rss_queues: %U", format_clib_error, error);
1893 int collect_detailed_interface_stats_flag = 0;
1896 collect_detailed_interface_stats_flag_set (void)
1898 collect_detailed_interface_stats_flag = 1;
1902 collect_detailed_interface_stats_flag_clear (void)
1904 collect_detailed_interface_stats_flag = 0;
1907 static clib_error_t *
1908 collect_detailed_interface_stats_cli (vlib_main_t * vm,
1909 unformat_input_t * input,
1910 vlib_cli_command_t * cmd)
1912 unformat_input_t _line_input, *line_input = &_line_input;
1913 clib_error_t *error = NULL;
1915 /* Get a line of input. */
1916 if (!unformat_user (input, unformat_line_input, line_input))
1917 return clib_error_return (0, "expected enable | disable");
1919 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1921 if (unformat (line_input, "enable") || unformat (line_input, "on"))
1922 collect_detailed_interface_stats_flag_set ();
1923 else if (unformat (line_input, "disable")
1924 || unformat (line_input, "off"))
1925 collect_detailed_interface_stats_flag_clear ();
1928 error = clib_error_return (0, "unknown input `%U'",
1929 format_unformat_error, line_input);
1935 unformat_free (line_input);
1940 VLIB_CLI_COMMAND (collect_detailed_interface_stats_command, static) = {
1941 .path = "interface collect detailed-stats",
1942 .short_help = "interface collect detailed-stats <enable|disable>",
1943 .function = collect_detailed_interface_stats_cli,
1948 * fd.io coding-style-patch-verification: ON
1951 * eval: (c-set-style "gnu")