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/fib/ip6_fib.h>
43 #include <vnet/adj/adj.h>
45 #define VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE (1 << 0)
46 #define VNET_INTERFACE_SET_FLAGS_HELPER_WANT_REDISTRIBUTE (1 << 1)
48 static clib_error_t *vnet_hw_interface_set_flags_helper (vnet_main_t * vnm,
53 static clib_error_t *vnet_sw_interface_set_flags_helper (vnet_main_t * vnm,
58 static clib_error_t *vnet_hw_interface_set_class_helper (vnet_main_t * vnm,
65 /* Either sw or hw interface index. */
70 } vnet_sw_hw_interface_state_t;
73 serialize_vec_vnet_sw_hw_interface_state (serialize_main_t * m, va_list * va)
75 vnet_sw_hw_interface_state_t *s =
76 va_arg (*va, vnet_sw_hw_interface_state_t *);
77 u32 n = va_arg (*va, u32);
79 for (i = 0; i < n; i++)
81 serialize_integer (m, s[i].sw_hw_if_index,
82 sizeof (s[i].sw_hw_if_index));
83 serialize_integer (m, s[i].flags, sizeof (s[i].flags));
88 unserialize_vec_vnet_sw_hw_interface_state (serialize_main_t * m,
91 vnet_sw_hw_interface_state_t *s =
92 va_arg (*va, vnet_sw_hw_interface_state_t *);
93 u32 n = va_arg (*va, u32);
95 for (i = 0; i < n; i++)
97 unserialize_integer (m, &s[i].sw_hw_if_index,
98 sizeof (s[i].sw_hw_if_index));
99 unserialize_integer (m, &s[i].flags, sizeof (s[i].flags));
104 serialize_vnet_sw_hw_interface_set_flags (serialize_main_t * m, va_list * va)
106 vnet_sw_hw_interface_state_t *s =
107 va_arg (*va, vnet_sw_hw_interface_state_t *);
108 serialize (m, serialize_vec_vnet_sw_hw_interface_state, s, 1);
112 unserialize_vnet_sw_interface_set_flags (serialize_main_t * m, va_list * va)
114 CLIB_UNUSED (mc_main_t * mc) = va_arg (*va, mc_main_t *);
115 vnet_sw_hw_interface_state_t s;
117 unserialize (m, unserialize_vec_vnet_sw_hw_interface_state, &s, 1);
119 vnet_sw_interface_set_flags_helper
120 (vnet_get_main (), s.sw_hw_if_index, s.flags,
121 /* helper_flags no redistribution */ 0);
125 unserialize_vnet_hw_interface_set_flags (serialize_main_t * m, va_list * va)
127 CLIB_UNUSED (mc_main_t * mc) = va_arg (*va, mc_main_t *);
128 vnet_sw_hw_interface_state_t s;
130 unserialize (m, unserialize_vec_vnet_sw_hw_interface_state, &s, 1);
132 vnet_hw_interface_set_flags_helper
133 (vnet_get_main (), s.sw_hw_if_index, s.flags,
134 /* helper_flags no redistribution */ 0);
137 MC_SERIALIZE_MSG (vnet_sw_interface_set_flags_msg, static) =
139 .name = "vnet_sw_interface_set_flags",.serialize =
140 serialize_vnet_sw_hw_interface_set_flags,.unserialize =
141 unserialize_vnet_sw_interface_set_flags,};
143 MC_SERIALIZE_MSG (vnet_hw_interface_set_flags_msg, static) =
145 .name = "vnet_hw_interface_set_flags",.serialize =
146 serialize_vnet_sw_hw_interface_set_flags,.unserialize =
147 unserialize_vnet_hw_interface_set_flags,};
150 serialize_vnet_interface_state (serialize_main_t * m, va_list * va)
152 vnet_main_t *vnm = va_arg (*va, vnet_main_t *);
153 vnet_sw_hw_interface_state_t *sts = 0, *st;
154 vnet_sw_interface_t *sif;
155 vnet_hw_interface_t *hif;
156 vnet_interface_main_t *im = &vnm->interface_main;
158 /* Serialize hardware interface classes since they may have changed.
159 Must do this before sending up/down flags. */
161 pool_foreach (hif, im->hw_interfaces, ({
162 vnet_hw_interface_class_t * hw_class = vnet_get_hw_interface_class (vnm, hif->hw_class_index);
163 serialize_cstring (m, hw_class->name);
167 /* Send sw/hw interface state when non-zero. */
169 pool_foreach (sif, im->sw_interfaces, ({
172 vec_add2 (sts, st, 1);
173 st->sw_hw_if_index = sif->sw_if_index;
174 st->flags = sif->flags;
179 vec_serialize (m, sts, serialize_vec_vnet_sw_hw_interface_state);
185 pool_foreach (hif, im->hw_interfaces, ({
188 vec_add2 (sts, st, 1);
189 st->sw_hw_if_index = hif->hw_if_index;
190 st->flags = hif->flags;
195 vec_serialize (m, sts, serialize_vec_vnet_sw_hw_interface_state);
201 unserialize_vnet_interface_state (serialize_main_t * m, va_list * va)
203 vnet_main_t *vnm = va_arg (*va, vnet_main_t *);
204 vnet_sw_hw_interface_state_t *sts = 0, *st;
206 /* First set interface hardware class. */
208 vnet_interface_main_t *im = &vnm->interface_main;
209 vnet_hw_interface_t *hif;
215 pool_foreach (hif, im->hw_interfaces, ({
216 unserialize_cstring (m, &class_name);
217 p = hash_get_mem (im->hw_interface_class_by_name, class_name);
219 error = vnet_hw_interface_set_class_helper (vnm, hif->hw_if_index, p[0], /* redistribute */ 0);
221 clib_error_report (error);
222 vec_free (class_name);
227 vec_unserialize (m, &sts, unserialize_vec_vnet_sw_hw_interface_state);
228 vec_foreach (st, sts)
229 vnet_sw_interface_set_flags_helper (vnm, st->sw_hw_if_index, st->flags,
230 /* no distribute */ 0);
233 vec_unserialize (m, &sts, unserialize_vec_vnet_sw_hw_interface_state);
234 vec_foreach (st, sts)
235 vnet_hw_interface_set_flags_helper (vnm, st->sw_hw_if_index, st->flags,
236 /* no distribute */ 0);
240 static clib_error_t *
241 call_elf_section_interface_callbacks (vnet_main_t * vnm, u32 if_index,
243 _vnet_interface_function_list_elt_t **
246 _vnet_interface_function_list_elt_t *elt;
247 vnet_interface_function_priority_t prio;
248 clib_error_t *error = 0;
250 for (prio = VNET_ITF_FUNC_PRIORITY_LOW;
251 prio <= VNET_ITF_FUNC_PRIORITY_HIGH; prio++)
257 error = elt->fp (vnm, if_index, flags);
260 elt = elt->next_interface_function;
266 static clib_error_t *
267 call_hw_interface_add_del_callbacks (vnet_main_t * vnm, u32 hw_if_index,
270 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
271 vnet_hw_interface_class_t *hw_class =
272 vnet_get_hw_interface_class (vnm, hi->hw_class_index);
273 vnet_device_class_t *dev_class =
274 vnet_get_device_class (vnm, hi->dev_class_index);
275 clib_error_t *error = 0;
277 if (hw_class->interface_add_del_function
279 hw_class->interface_add_del_function (vnm, hw_if_index, is_create)))
282 if (dev_class->interface_add_del_function
284 dev_class->interface_add_del_function (vnm, hw_if_index,
288 error = call_elf_section_interface_callbacks
289 (vnm, hw_if_index, is_create, vnm->hw_interface_add_del_functions);
294 static clib_error_t *
295 call_sw_interface_add_del_callbacks (vnet_main_t * vnm, u32 sw_if_index,
298 return call_elf_section_interface_callbacks
299 (vnm, sw_if_index, is_create, vnm->sw_interface_add_del_functions);
302 #define VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE (1 << 0)
303 #define VNET_INTERFACE_SET_FLAGS_HELPER_WANT_REDISTRIBUTE (1 << 1)
305 static clib_error_t *
306 vnet_hw_interface_set_flags_helper (vnet_main_t * vnm, u32 hw_if_index,
307 u32 flags, u32 helper_flags)
309 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
310 vnet_hw_interface_class_t *hw_class =
311 vnet_get_hw_interface_class (vnm, hi->hw_class_index);
312 vnet_device_class_t *dev_class =
313 vnet_get_device_class (vnm, hi->dev_class_index);
314 vlib_main_t *vm = vnm->vlib_main;
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 |
322 VNET_HW_INTERFACE_FLAG_SPEED_MASK);
325 /* Call hardware interface add/del callbacks. */
327 call_hw_interface_add_del_callbacks (vnm, hw_if_index, is_create);
329 /* Already in the desired state? */
330 if (!is_create && (hi->flags & mask) == flags)
333 /* Some interface classes do not redistribute (e.g. are local). */
334 if (!dev_class->redistribute)
335 helper_flags &= ~VNET_INTERFACE_SET_FLAGS_HELPER_WANT_REDISTRIBUTE;
338 && (helper_flags & VNET_INTERFACE_SET_FLAGS_HELPER_WANT_REDISTRIBUTE))
340 vnet_sw_hw_interface_state_t s;
341 s.sw_hw_if_index = hw_if_index;
343 mc_serialize (vm->mc_main, &vnet_hw_interface_set_flags_msg, &s);
346 if ((hi->flags & VNET_HW_INTERFACE_FLAG_LINK_UP) !=
347 (flags & VNET_HW_INTERFACE_FLAG_LINK_UP))
349 /* Do hardware class (e.g. ethernet). */
350 if (hw_class->link_up_down_function
351 && (error = hw_class->link_up_down_function (vnm, hw_if_index,
355 error = call_elf_section_interface_callbacks
356 (vnm, hw_if_index, flags, vnm->hw_interface_link_up_down_functions);
369 static clib_error_t *
370 vnet_sw_interface_set_flags_helper (vnet_main_t * vnm, u32 sw_if_index,
371 u32 flags, u32 helper_flags)
373 vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
374 vlib_main_t *vm = vnm->vlib_main;
376 clib_error_t *error = 0;
378 (helper_flags & VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE) != 0;
381 mask = VNET_SW_INTERFACE_FLAG_ADMIN_UP | VNET_SW_INTERFACE_FLAG_PUNT;
387 call_sw_interface_add_del_callbacks (vnm, sw_if_index, is_create);
391 if (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
393 /* Notify everyone when the interface is created as admin up */
394 error = call_elf_section_interface_callbacks (vnm, sw_if_index,
397 sw_interface_admin_up_down_functions);
404 vnet_sw_interface_t *si_sup = si;
406 /* Check that super interface is in correct state. */
407 if (si->type == VNET_SW_INTERFACE_TYPE_SUB)
409 si_sup = vnet_get_sw_interface (vnm, si->sup_sw_if_index);
411 /* Check to see if we're bringing down the soft interface and if it's parent is up */
412 if ((flags != (si_sup->flags & mask)) &&
414 && ((si_sup->flags & mask) ==
415 VNET_SW_INTERFACE_FLAG_ADMIN_UP))))
417 error = clib_error_return (0, "super-interface %U must be %U",
418 format_vnet_sw_interface_name, vnm,
420 format_vnet_sw_interface_flags,
426 /* Donot change state for slave link of bonded interfaces */
427 if (si->flags & VNET_SW_INTERFACE_FLAG_BOND_SLAVE)
429 error = clib_error_return
430 (0, "not allowed as %U belong to a BondEthernet interface",
431 format_vnet_sw_interface_name, vnm, si);
435 /* Already in the desired state? */
436 if ((si->flags & mask) == flags)
439 /* Sub-interfaces of hardware interfaces that do no redistribute,
440 do not redistribute themselves. */
441 if (si_sup->type == VNET_SW_INTERFACE_TYPE_HARDWARE)
443 vnet_hw_interface_t *hi =
444 vnet_get_hw_interface (vnm, si_sup->hw_if_index);
445 vnet_device_class_t *dev_class =
446 vnet_get_device_class (vnm, hi->dev_class_index);
447 if (!dev_class->redistribute)
449 ~VNET_INTERFACE_SET_FLAGS_HELPER_WANT_REDISTRIBUTE;
454 VNET_INTERFACE_SET_FLAGS_HELPER_WANT_REDISTRIBUTE))
456 vnet_sw_hw_interface_state_t s;
457 s.sw_hw_if_index = sw_if_index;
459 mc_serialize (vm->mc_main, &vnet_sw_interface_set_flags_msg, &s);
462 /* set the flags now before invoking the registered clients
463 * so that the state they query is consistent with the state here notified */
464 old_flags = si->flags;
467 if ((flags | old_flags) & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
468 error = call_elf_section_interface_callbacks
469 (vnm, sw_if_index, flags,
470 vnm->sw_interface_admin_up_down_functions);
471 si->flags = old_flags;
476 if (si->type == VNET_SW_INTERFACE_TYPE_HARDWARE)
478 vnet_hw_interface_t *hi =
479 vnet_get_hw_interface (vnm, si->hw_if_index);
480 vnet_hw_interface_class_t *hw_class =
481 vnet_get_hw_interface_class (vnm, hi->hw_class_index);
482 vnet_device_class_t *dev_class =
483 vnet_get_device_class (vnm, hi->dev_class_index);
485 /* save the si admin up flag */
486 old_flags = si->flags;
488 /* update si admin up flag in advance if we are going admin down */
489 if (!(flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP))
490 si->flags &= ~VNET_SW_INTERFACE_FLAG_ADMIN_UP;
492 if (dev_class->admin_up_down_function
493 && (error = dev_class->admin_up_down_function (vnm,
497 /* restore si admin up flag to it's original state on errors */
498 si->flags = old_flags;
502 if (hw_class->admin_up_down_function
503 && (error = hw_class->admin_up_down_function (vnm,
507 /* restore si admin up flag to it's original state on errors */
508 si->flags = old_flags;
512 /* Admin down implies link down. */
513 if (!(flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
514 && (hi->flags & VNET_HW_INTERFACE_FLAG_LINK_UP))
515 vnet_hw_interface_set_flags_helper (vnm, si->hw_if_index,
517 ~VNET_HW_INTERFACE_FLAG_LINK_UP,
530 vnet_hw_interface_set_flags (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
532 return vnet_hw_interface_set_flags_helper
533 (vnm, hw_if_index, flags,
534 VNET_INTERFACE_SET_FLAGS_HELPER_WANT_REDISTRIBUTE);
538 vnet_sw_interface_set_flags (vnet_main_t * vnm, u32 sw_if_index, u32 flags)
540 return vnet_sw_interface_set_flags_helper
541 (vnm, sw_if_index, flags,
542 VNET_INTERFACE_SET_FLAGS_HELPER_WANT_REDISTRIBUTE);
546 vnet_create_sw_interface_no_callbacks (vnet_main_t * vnm,
547 vnet_sw_interface_t * template)
549 vnet_interface_main_t *im = &vnm->interface_main;
550 vnet_sw_interface_t *sw;
553 pool_get (im->sw_interfaces, sw);
554 sw_if_index = sw - im->sw_interfaces;
559 sw->sw_if_index = sw_if_index;
560 if (sw->type == VNET_SW_INTERFACE_TYPE_HARDWARE)
561 sw->sup_sw_if_index = sw->sw_if_index;
563 /* Allocate counters for this interface. */
567 vnet_interface_counter_lock (im);
569 for (i = 0; i < vec_len (im->sw_if_counters); i++)
571 vlib_validate_simple_counter (&im->sw_if_counters[i], sw_if_index);
572 vlib_zero_simple_counter (&im->sw_if_counters[i], sw_if_index);
575 for (i = 0; i < vec_len (im->combined_sw_if_counters); i++)
577 vlib_validate_combined_counter (&im->combined_sw_if_counters[i],
579 vlib_zero_combined_counter (&im->combined_sw_if_counters[i],
583 vnet_interface_counter_unlock (im);
590 vnet_create_sw_interface (vnet_main_t * vnm, vnet_sw_interface_t * template,
594 vnet_hw_interface_t *hi;
595 vnet_device_class_t *dev_class;
597 hi = vnet_get_sup_hw_interface (vnm, template->sup_sw_if_index);
598 dev_class = vnet_get_device_class (vnm, hi->dev_class_index);
600 if (template->type == VNET_SW_INTERFACE_TYPE_SUB &&
601 dev_class->subif_add_del_function)
603 error = dev_class->subif_add_del_function (vnm, hi->hw_if_index,
604 (struct vnet_sw_interface_t
610 *sw_if_index = vnet_create_sw_interface_no_callbacks (vnm, template);
611 error = vnet_sw_interface_set_flags_helper
612 (vnm, *sw_if_index, template->flags,
613 VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE);
617 /* undo the work done by vnet_create_sw_interface_no_callbacks() */
618 vnet_interface_main_t *im = &vnm->interface_main;
619 vnet_sw_interface_t *sw =
620 pool_elt_at_index (im->sw_interfaces, *sw_if_index);
621 pool_put (im->sw_interfaces, sw);
628 vnet_delete_sw_interface (vnet_main_t * vnm, u32 sw_if_index)
630 vnet_interface_main_t *im = &vnm->interface_main;
631 vnet_sw_interface_t *sw =
632 pool_elt_at_index (im->sw_interfaces, sw_if_index);
634 /* Make sure the interface is in L3 mode (removed from L2 BD or XConnect) */
635 vlib_main_t *vm = vlib_get_main ();
636 l2_input_config_t *config;
637 config = vec_elt_at_index (l2input_main.configs, sw_if_index);
638 if (config->xconnect)
639 set_int_l2_mode (vm, vnm, MODE_L3, config->output_sw_if_index, 0, 0, 0,
641 if (config->xconnect || config->bridge)
642 set_int_l2_mode (vm, vnm, MODE_L3, sw_if_index, 0, 0, 0, 0);
644 /* Bring down interface in case it is up. */
646 vnet_sw_interface_set_flags (vnm, sw_if_index, /* flags */ 0);
648 call_sw_interface_add_del_callbacks (vnm, sw_if_index, /* is_create */ 0);
650 pool_put (im->sw_interfaces, sw);
654 setup_tx_node (vlib_main_t * vm,
655 u32 node_index, vnet_device_class_t * dev_class)
657 vlib_node_t *n = vlib_get_node (vm, node_index);
659 n->function = dev_class->tx_function;
660 n->format_trace = dev_class->format_tx_trace;
662 vlib_register_errors (vm, node_index,
663 dev_class->tx_function_n_errors,
664 dev_class->tx_function_error_strings);
668 setup_output_node (vlib_main_t * vm,
669 u32 node_index, vnet_hw_interface_class_t * hw_class)
671 vlib_node_t *n = vlib_get_node (vm, node_index);
672 n->format_buffer = hw_class->format_header;
673 n->unformat_buffer = hw_class->unformat_header;
676 /* Register an interface instance. */
678 vnet_register_interface (vnet_main_t * vnm,
681 u32 hw_class_index, u32 hw_instance)
683 vnet_interface_main_t *im = &vnm->interface_main;
684 vnet_hw_interface_t *hw;
685 vnet_device_class_t *dev_class =
686 vnet_get_device_class (vnm, dev_class_index);
687 vnet_hw_interface_class_t *hw_class =
688 vnet_get_hw_interface_class (vnm, hw_class_index);
689 vlib_main_t *vm = vnm->vlib_main;
690 vnet_feature_config_main_t *fcm;
691 vnet_config_main_t *cm;
693 char *tx_node_name, *output_node_name;
695 pool_get (im->hw_interfaces, hw);
697 hw_index = hw - im->hw_interfaces;
698 hw->hw_if_index = hw_index;
700 if (dev_class->format_device_name)
701 hw->name = format (0, "%U", dev_class->format_device_name, dev_instance);
702 else if (hw_class->format_interface_name)
703 hw->name = format (0, "%U", hw_class->format_interface_name,
706 hw->name = format (0, "%s%x", hw_class->name, dev_instance);
708 if (!im->hw_interface_by_name)
709 im->hw_interface_by_name = hash_create_vec ( /* size */ 0,
710 sizeof (hw->name[0]),
713 hash_set_mem (im->hw_interface_by_name, hw->name, hw_index);
715 /* Make hardware interface point to software interface. */
717 vnet_sw_interface_t sw = {
718 .type = VNET_SW_INTERFACE_TYPE_HARDWARE,
719 .flood_class = VNET_FLOOD_CLASS_NORMAL,
720 .hw_if_index = hw_index
722 hw->sw_if_index = vnet_create_sw_interface_no_callbacks (vnm, &sw);
725 hw->dev_class_index = dev_class_index;
726 hw->dev_instance = dev_instance;
727 hw->hw_class_index = hw_class_index;
728 hw->hw_instance = hw_instance;
730 hw->max_rate_bits_per_sec = 0;
731 hw->min_packet_bytes = 0;
732 hw->per_packet_overhead_bytes = 0;
733 hw->max_l3_packet_bytes[VLIB_RX] = ~0;
734 hw->max_l3_packet_bytes[VLIB_TX] = ~0;
736 tx_node_name = (char *) format (0, "%v-tx", hw->name);
737 output_node_name = (char *) format (0, "%v-output", hw->name);
739 /* If we have previously deleted interface nodes, re-use them. */
740 if (vec_len (im->deleted_hw_interface_nodes) > 0)
742 vnet_hw_interface_nodes_t *hn;
743 vnet_interface_output_runtime_t *rt;
745 vlib_node_runtime_t *nrt;
747 hn = vec_end (im->deleted_hw_interface_nodes) - 1;
749 hw->tx_node_index = hn->tx_node_index;
750 hw->output_node_index = hn->output_node_index;
752 vlib_node_rename (vm, hw->tx_node_index, "%v", tx_node_name);
753 vlib_node_rename (vm, hw->output_node_index, "%v", output_node_name);
755 rt = vlib_node_get_runtime_data (vm, hw->output_node_index);
756 ASSERT (rt->is_deleted == 1);
758 rt->hw_if_index = hw_index;
759 rt->sw_if_index = hw->sw_if_index;
760 rt->dev_instance = hw->dev_instance;
762 rt = vlib_node_get_runtime_data (vm, hw->tx_node_index);
763 rt->hw_if_index = hw_index;
764 rt->sw_if_index = hw->sw_if_index;
765 rt->dev_instance = hw->dev_instance;
767 /* The new class may differ from the old one.
768 * Functions have to be updated. */
769 node = vlib_get_node (vm, hw->output_node_index);
770 node->function = dev_class->flatten_output_chains ?
771 vnet_interface_output_node_flatten_multiarch_select () :
772 vnet_interface_output_node_multiarch_select ();
773 node->format_trace = format_vnet_interface_output_trace;
774 nrt = vlib_node_get_runtime (vm, hw->output_node_index);
775 nrt->function = node->function;
777 node = vlib_get_node (vm, hw->tx_node_index);
778 node->function = dev_class->tx_function;
779 node->format_trace = dev_class->format_tx_trace;
780 nrt = vlib_node_get_runtime (vm, hw->tx_node_index);
781 nrt->function = node->function;
783 vlib_worker_thread_node_runtime_update ();
784 _vec_len (im->deleted_hw_interface_nodes) -= 1;
788 vlib_node_registration_t r;
789 vnet_interface_output_runtime_t rt = {
790 .hw_if_index = hw_index,
791 .sw_if_index = hw->sw_if_index,
792 .dev_instance = hw->dev_instance,
796 memset (&r, 0, sizeof (r));
797 r.type = VLIB_NODE_TYPE_INTERNAL;
798 r.runtime_data = &rt;
799 r.runtime_data_bytes = sizeof (rt);
801 r.vector_size = sizeof (u32);
803 r.flags = VLIB_NODE_FLAG_IS_OUTPUT;
804 r.name = tx_node_name;
805 r.function = dev_class->tx_function;
807 hw->tx_node_index = vlib_register_node (vm, &r);
809 vlib_node_add_named_next_with_slot (vm, hw->tx_node_index,
811 VNET_INTERFACE_TX_NEXT_DROP);
814 r.name = output_node_name;
815 r.function = dev_class->flatten_output_chains ?
816 vnet_interface_output_node_flatten_multiarch_select () :
817 vnet_interface_output_node_multiarch_select ();
818 r.format_trace = format_vnet_interface_output_trace;
823 "interface is deleted",
826 r.n_errors = ARRAY_LEN (e);
829 hw->output_node_index = vlib_register_node (vm, &r);
831 vlib_node_add_named_next_with_slot (vm, hw->output_node_index,
833 VNET_INTERFACE_OUTPUT_NEXT_DROP);
834 vlib_node_add_next_with_slot (vm, hw->output_node_index,
836 VNET_INTERFACE_OUTPUT_NEXT_TX);
838 /* add interface to the list of "output-interface" feature arc start nodes
839 and clone nexts from 1st interface if it exists */
840 fcm = vnet_feature_get_config_main (im->output_feature_arc_index);
841 cm = &fcm->config_main;
842 i = vec_len (cm->start_node_indices);
843 vec_validate (cm->start_node_indices, i);
844 cm->start_node_indices[i] = hw->output_node_index;
847 /* copy nexts from 1st interface */
848 vnet_hw_interface_t *first_hw;
849 vlib_node_t *first_node;
851 first_hw = vnet_get_hw_interface (vnm, /* hw_if_index */ 0);
852 first_node = vlib_get_node (vm, first_hw->output_node_index);
854 /* 1st 2 nexts are already added above */
855 for (i = 2; i < vec_len (first_node->next_nodes); i++)
856 vlib_node_add_next_with_slot (vm, hw->output_node_index,
857 first_node->next_nodes[i], i);
861 setup_output_node (vm, hw->output_node_index, hw_class);
862 setup_tx_node (vm, hw->tx_node_index, dev_class);
864 /* Call all up/down callbacks with zero flags when interface is created. */
865 vnet_sw_interface_set_flags_helper (vnm, hw->sw_if_index, /* flags */ 0,
866 VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE);
867 vnet_hw_interface_set_flags_helper (vnm, hw_index, /* flags */ 0,
868 VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE);
874 vnet_delete_hw_interface (vnet_main_t * vnm, u32 hw_if_index)
876 vnet_interface_main_t *im = &vnm->interface_main;
877 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
878 vlib_main_t *vm = vnm->vlib_main;
880 /* If it is up, mark it down. */
882 vnet_hw_interface_set_flags (vnm, hw_if_index, /* flags */ 0);
884 /* Call delete callbacks. */
885 call_hw_interface_add_del_callbacks (vnm, hw_if_index, /* is_create */ 0);
887 /* Delete software interface corresponding to hardware interface. */
888 vnet_delete_sw_interface (vnm, hw->sw_if_index);
890 /* Delete any sub-interfaces. */
894 hash_foreach (id, sw_if_index, hw->sub_interface_sw_if_index_by_id, ({
895 vnet_delete_sw_interface (vnm, sw_if_index);
901 vnet_hw_interface_nodes_t *dn;
902 vnet_interface_output_runtime_t *rt =
903 vlib_node_get_runtime_data (vm, hw->output_node_index);
905 /* Mark node runtime as deleted so output node (if called) will drop packets. */
908 vlib_node_rename (vm, hw->output_node_index,
909 "interface-%d-output-deleted", hw_if_index);
910 vlib_node_rename (vm, hw->tx_node_index, "interface-%d-tx-deleted",
912 vec_add2 (im->deleted_hw_interface_nodes, dn, 1);
913 dn->tx_node_index = hw->tx_node_index;
914 dn->output_node_index = hw->output_node_index;
917 hash_unset_mem (im->hw_interface_by_name, hw->name);
920 pool_put (im->hw_interfaces, hw);
924 vnet_hw_interface_walk_sw (vnet_main_t * vnm,
926 vnet_hw_sw_interface_walk_t fn, void *ctx)
928 vnet_hw_interface_t *hi;
931 hi = vnet_get_hw_interface (vnm, hw_if_index);
932 /* the super first, then the and sub interfaces */
933 fn (vnm, hi->sw_if_index, ctx);
936 hash_foreach (id, sw_if_index,
937 hi->sub_interface_sw_if_index_by_id,
939 fn (vnm, sw_if_index, ctx);
945 serialize_vnet_hw_interface_set_class (serialize_main_t * m, va_list * va)
947 u32 hw_if_index = va_arg (*va, u32);
948 char *hw_class_name = va_arg (*va, char *);
949 serialize_integer (m, hw_if_index, sizeof (hw_if_index));
950 serialize_cstring (m, hw_class_name);
954 unserialize_vnet_hw_interface_set_class (serialize_main_t * m, va_list * va)
956 CLIB_UNUSED (mc_main_t * mc) = va_arg (*va, mc_main_t *);
957 vnet_main_t *vnm = vnet_get_main ();
963 unserialize_integer (m, &hw_if_index, sizeof (hw_if_index));
964 unserialize_cstring (m, &hw_class_name);
966 hash_get (vnm->interface_main.hw_interface_class_by_name, hw_class_name);
968 error = vnet_hw_interface_set_class_helper (vnm, hw_if_index, p[0],
969 /* redistribute */ 0);
971 clib_error_report (error);
974 MC_SERIALIZE_MSG (vnet_hw_interface_set_class_msg, static) =
976 .name = "vnet_hw_interface_set_class",.serialize =
977 serialize_vnet_hw_interface_set_class,.unserialize =
978 unserialize_vnet_hw_interface_set_class,};
981 vnet_hw_interface_init_for_class (vnet_main_t * vnm, u32 hw_if_index,
982 u32 hw_class_index, u32 hw_instance)
984 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
985 vnet_hw_interface_class_t *hc =
986 vnet_get_hw_interface_class (vnm, hw_class_index);
988 hi->hw_class_index = hw_class_index;
989 hi->hw_instance = hw_instance;
990 setup_output_node (vnm->vlib_main, hi->output_node_index, hc);
993 static clib_error_t *
994 vnet_hw_interface_set_class_helper (vnet_main_t * vnm, u32 hw_if_index,
995 u32 hw_class_index, u32 redistribute)
997 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
998 vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, hi->sw_if_index);
999 vnet_hw_interface_class_t *old_class =
1000 vnet_get_hw_interface_class (vnm, hi->hw_class_index);
1001 vnet_hw_interface_class_t *new_class =
1002 vnet_get_hw_interface_class (vnm, hw_class_index);
1003 vnet_device_class_t *dev_class =
1004 vnet_get_device_class (vnm, hi->dev_class_index);
1005 clib_error_t *error = 0;
1007 /* New class equals old class? Nothing to do. */
1008 if (hi->hw_class_index == hw_class_index)
1011 /* No need (and incorrect since admin up flag may be set) to do error checking when
1012 receiving unserialize message. */
1015 if (si->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
1016 return clib_error_return (0,
1017 "%v must be admin down to change class from %s to %s",
1018 hi->name, old_class->name, new_class->name);
1020 /* Make sure interface supports given class. */
1021 if ((new_class->is_valid_class_for_interface
1022 && !new_class->is_valid_class_for_interface (vnm, hw_if_index,
1024 || (dev_class->is_valid_class_for_interface
1025 && !dev_class->is_valid_class_for_interface (vnm, hw_if_index,
1027 return clib_error_return (0,
1028 "%v class cannot be changed from %s to %s",
1029 hi->name, old_class->name, new_class->name);
1031 if (vnm->vlib_main->mc_main)
1033 mc_serialize (vnm->vlib_main->mc_main,
1034 &vnet_hw_interface_set_class_msg, hw_if_index,
1040 if (old_class->hw_class_change)
1041 old_class->hw_class_change (vnm, hw_if_index, old_class->index,
1044 vnet_hw_interface_init_for_class (vnm, hw_if_index, new_class->index,
1047 if (new_class->hw_class_change)
1048 new_class->hw_class_change (vnm, hw_if_index, old_class->index,
1051 if (dev_class->hw_class_change)
1052 dev_class->hw_class_change (vnm, hw_if_index, new_class->index);
1058 vnet_hw_interface_set_class (vnet_main_t * vnm, u32 hw_if_index,
1061 return vnet_hw_interface_set_class_helper (vnm, hw_if_index, hw_class_index,
1062 /* redistribute */ 1);
1066 vnet_hw_interface_rx_redirect_to_node_helper (vnet_main_t * vnm,
1071 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1072 vnet_device_class_t *dev_class = vnet_get_device_class
1073 (vnm, hi->dev_class_index);
1077 /* $$$$ fixme someday maybe */
1078 ASSERT (vnm->vlib_main->mc_main == 0);
1080 if (dev_class->rx_redirect_to_node)
1082 dev_class->rx_redirect_to_node (vnm, hw_if_index, node_index);
1086 return VNET_API_ERROR_UNIMPLEMENTED;
1090 vnet_hw_interface_rx_redirect_to_node (vnet_main_t * vnm, u32 hw_if_index,
1093 return vnet_hw_interface_rx_redirect_to_node_helper (vnm, hw_if_index,
1095 1 /* redistribute */ );
1099 vnet_sw_interface_compare (vnet_main_t * vnm,
1100 uword sw_if_index0, uword sw_if_index1)
1102 vnet_sw_interface_t *sup0 = vnet_get_sup_sw_interface (vnm, sw_if_index0);
1103 vnet_sw_interface_t *sup1 = vnet_get_sup_sw_interface (vnm, sw_if_index1);
1104 vnet_hw_interface_t *h0 = vnet_get_hw_interface (vnm, sup0->hw_if_index);
1105 vnet_hw_interface_t *h1 = vnet_get_hw_interface (vnm, sup1->hw_if_index);
1108 return vec_cmp (h0->name, h1->name);
1109 return (word) h0->hw_instance - (word) h1->hw_instance;
1113 vnet_hw_interface_compare (vnet_main_t * vnm,
1114 uword hw_if_index0, uword hw_if_index1)
1116 vnet_hw_interface_t *h0 = vnet_get_hw_interface (vnm, hw_if_index0);
1117 vnet_hw_interface_t *h1 = vnet_get_hw_interface (vnm, hw_if_index1);
1120 return vec_cmp (h0->name, h1->name);
1121 return (word) h0->hw_instance - (word) h1->hw_instance;
1125 vnet_sw_interface_is_p2p (vnet_main_t * vnm, u32 sw_if_index)
1127 vnet_hw_interface_t *hw = vnet_get_sup_hw_interface (vnm, sw_if_index);
1128 vnet_hw_interface_class_t *hc =
1129 vnet_get_hw_interface_class (vnm, hw->hw_class_index);
1131 return (hc->flags & VNET_HW_INTERFACE_CLASS_FLAG_P2P);
1135 vnet_interface_init (vlib_main_t * vm)
1137 vnet_main_t *vnm = vnet_get_main ();
1138 vnet_interface_main_t *im = &vnm->interface_main;
1139 vlib_buffer_t *b = 0;
1140 vnet_buffer_opaque_t *o = 0;
1143 * Keep people from shooting themselves in the foot.
1145 if (sizeof (b->opaque) != sizeof (vnet_buffer_opaque_t))
1147 #define _(a) if (sizeof(o->a) > sizeof (o->unused)) \
1149 ("FATAL: size of opaque union subtype %s is %d (max %d)", \
1150 #a, sizeof(o->a), sizeof (o->unused));
1151 foreach_buffer_opaque_union_subtype;
1154 return clib_error_return
1155 (0, "FATAL: size of vlib buffer opaque %d, size of vnet opaque %d",
1156 sizeof (b->opaque), sizeof (vnet_buffer_opaque_t));
1159 im->sw_if_counter_lock = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES,
1160 CLIB_CACHE_LINE_BYTES);
1161 im->sw_if_counter_lock[0] = 1; /* should be no need */
1163 vec_validate (im->sw_if_counters, VNET_N_SIMPLE_INTERFACE_COUNTER - 1);
1164 im->sw_if_counters[VNET_INTERFACE_COUNTER_DROP].name = "drops";
1165 im->sw_if_counters[VNET_INTERFACE_COUNTER_PUNT].name = "punts";
1166 im->sw_if_counters[VNET_INTERFACE_COUNTER_IP4].name = "ip4";
1167 im->sw_if_counters[VNET_INTERFACE_COUNTER_IP6].name = "ip6";
1168 im->sw_if_counters[VNET_INTERFACE_COUNTER_RX_NO_BUF].name = "rx-no-buf";
1169 im->sw_if_counters[VNET_INTERFACE_COUNTER_RX_MISS].name = "rx-miss";
1170 im->sw_if_counters[VNET_INTERFACE_COUNTER_RX_ERROR].name = "rx-error";
1171 im->sw_if_counters[VNET_INTERFACE_COUNTER_TX_ERROR].name = "tx-error";
1173 vec_validate (im->combined_sw_if_counters,
1174 VNET_N_COMBINED_INTERFACE_COUNTER - 1);
1175 im->combined_sw_if_counters[VNET_INTERFACE_COUNTER_RX].name = "rx";
1176 im->combined_sw_if_counters[VNET_INTERFACE_COUNTER_TX].name = "tx";
1178 im->sw_if_counter_lock[0] = 0;
1180 im->device_class_by_name = hash_create_string ( /* size */ 0,
1183 vnet_device_class_t *c;
1185 c = vnm->device_class_registrations;
1189 c->index = vec_len (im->device_classes);
1190 hash_set_mem (im->device_class_by_name, c->name, c->index);
1191 vec_add1 (im->device_classes, c[0]);
1192 c = c->next_class_registration;
1196 im->hw_interface_class_by_name = hash_create_string ( /* size */ 0,
1199 im->sw_if_index_by_sup_and_sub = hash_create_mem (0, sizeof (u64),
1202 vnet_hw_interface_class_t *c;
1204 c = vnm->hw_interface_class_registrations;
1208 c->index = vec_len (im->hw_interface_classes);
1209 hash_set_mem (im->hw_interface_class_by_name, c->name, c->index);
1211 if (NULL == c->build_rewrite)
1212 c->build_rewrite = default_build_rewrite;
1213 if (NULL == c->update_adjacency)
1214 c->update_adjacency = default_update_adjacency;
1216 vec_add1 (im->hw_interface_classes, c[0]);
1217 c = c->next_class_registration;
1222 clib_error_t *error;
1224 if ((error = vlib_call_init_function (vm, vnet_interface_cli_init)))
1229 vnm->interface_tag_by_sw_if_index = hash_create (0, sizeof (uword));
1232 VLIB_INIT_FUNCTION (vnet_interface_init);
1234 /* Kludge to renumber interface names [only!] */
1236 vnet_interface_name_renumber (u32 sw_if_index, u32 new_show_dev_instance)
1239 vnet_main_t *vnm = vnet_get_main ();
1240 vnet_interface_main_t *im = &vnm->interface_main;
1241 vnet_hw_interface_t *hi = vnet_get_sup_hw_interface (vnm, sw_if_index);
1243 vnet_device_class_t *dev_class = vnet_get_device_class
1244 (vnm, hi->dev_class_index);
1246 if (dev_class->name_renumber == 0 || dev_class->format_device_name == 0)
1247 return VNET_API_ERROR_UNIMPLEMENTED;
1249 rv = dev_class->name_renumber (hi, new_show_dev_instance);
1254 hash_unset_mem (im->hw_interface_by_name, hi->name);
1255 vec_free (hi->name);
1256 /* Use the mapping we set up to call it Ishmael */
1257 hi->name = format (0, "%U", dev_class->format_device_name,
1260 hash_set_mem (im->hw_interface_by_name, hi->name, hi->hw_if_index);
1265 vnet_rename_interface (vnet_main_t * vnm, u32 hw_if_index, char *new_name)
1267 vnet_interface_main_t *im = &vnm->interface_main;
1268 vlib_main_t *vm = vnm->vlib_main;
1269 vnet_hw_interface_t *hw;
1271 clib_error_t *error = 0;
1273 hw = vnet_get_hw_interface (vnm, hw_if_index);
1276 return clib_error_return (0,
1277 "unable to find hw interface for index %u",
1281 old_name = hw->name;
1283 /* set new hw->name */
1284 hw->name = format (0, "%s", new_name);
1286 /* remove the old name to hw_if_index mapping and install the new one */
1287 hash_unset_mem (im->hw_interface_by_name, old_name);
1288 hash_set_mem (im->hw_interface_by_name, hw->name, hw_if_index);
1290 /* rename tx/output nodes */
1291 vlib_node_rename (vm, hw->tx_node_index, "%v-tx", hw->name);
1292 vlib_node_rename (vm, hw->output_node_index, "%v-output", hw->name);
1294 /* free the old name vector */
1295 vec_free (old_name);
1300 static clib_error_t *
1301 vnet_hw_interface_change_mac_address_helper (vnet_main_t * vnm,
1302 u32 hw_if_index, u64 mac_address)
1304 clib_error_t *error = 0;
1305 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1309 vnet_device_class_t *dev_class =
1310 vnet_get_device_class (vnm, hi->dev_class_index);
1311 if (dev_class->mac_addr_change_function)
1314 dev_class->mac_addr_change_function (hi, (char *) &mac_address);
1318 vnet_hw_interface_class_t *hw_class;
1320 hw_class = vnet_get_hw_interface_class (vnm, hi->hw_class_index);
1322 if (NULL != hw_class->mac_addr_change_function)
1323 hw_class->mac_addr_change_function (hi, (char *) &mac_address);
1328 clib_error_return (0,
1329 "MAC Address Change is not supported on this interface");
1335 clib_error_return (0,
1336 "mac address change is not supported for interface index %u",
1343 vnet_hw_interface_change_mac_address (vnet_main_t * vnm, u32 hw_if_index,
1346 return vnet_hw_interface_change_mac_address_helper
1347 (vnm, hw_if_index, mac_address);
1350 vnet_l3_packet_type_t
1351 vnet_link_to_l3_proto (vnet_link_t link)
1356 return (VNET_L3_PACKET_TYPE_IP4);
1358 return (VNET_L3_PACKET_TYPE_IP6);
1359 case VNET_LINK_MPLS:
1360 return (VNET_L3_PACKET_TYPE_MPLS_UNICAST);
1362 return (VNET_L3_PACKET_TYPE_ARP);
1363 case VNET_LINK_ETHERNET:
1372 default_build_rewrite (vnet_main_t * vnm,
1374 vnet_link_t link_type, const void *dst_address)
1380 default_update_adjacency (vnet_main_t * vnm, u32 sw_if_index, u32 ai)
1384 rewrite = vnet_build_rewrite_for_sw_interface (vnm, sw_if_index,
1385 adj_get_link_type (ai),
1388 adj_nbr_update_rewrite (ai, ADJ_NBR_REWRITE_FLAG_COMPLETE, rewrite);
1393 * fd.io coding-style-patch-verification: ON
1396 * eval: (c-set-style "gnu")