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 /* Check if the interface has config and is removed from L2 BD or XConnect */
635 vlib_main_t *vm = vlib_get_main ();
636 l2_input_config_t *config;
637 if (sw_if_index < vec_len (l2input_main.configs))
639 config = vec_elt_at_index (l2input_main.configs, sw_if_index);
640 if (config->xconnect)
641 set_int_l2_mode (vm, vnm, MODE_L3, config->output_sw_if_index, 0, 0,
643 if (config->xconnect || config->bridge)
644 set_int_l2_mode (vm, vnm, MODE_L3, sw_if_index, 0, 0, 0, 0);
647 /* Bring down interface in case it is up. */
649 vnet_sw_interface_set_flags (vnm, sw_if_index, /* flags */ 0);
651 call_sw_interface_add_del_callbacks (vnm, sw_if_index, /* is_create */ 0);
653 pool_put (im->sw_interfaces, sw);
657 setup_tx_node (vlib_main_t * vm,
658 u32 node_index, vnet_device_class_t * dev_class)
660 vlib_node_t *n = vlib_get_node (vm, node_index);
662 n->function = dev_class->tx_function;
663 n->format_trace = dev_class->format_tx_trace;
665 vlib_register_errors (vm, node_index,
666 dev_class->tx_function_n_errors,
667 dev_class->tx_function_error_strings);
671 setup_output_node (vlib_main_t * vm,
672 u32 node_index, vnet_hw_interface_class_t * hw_class)
674 vlib_node_t *n = vlib_get_node (vm, node_index);
675 n->format_buffer = hw_class->format_header;
676 n->unformat_buffer = hw_class->unformat_header;
679 /* Register an interface instance. */
681 vnet_register_interface (vnet_main_t * vnm,
684 u32 hw_class_index, u32 hw_instance)
686 vnet_interface_main_t *im = &vnm->interface_main;
687 vnet_hw_interface_t *hw;
688 vnet_device_class_t *dev_class =
689 vnet_get_device_class (vnm, dev_class_index);
690 vnet_hw_interface_class_t *hw_class =
691 vnet_get_hw_interface_class (vnm, hw_class_index);
692 vlib_main_t *vm = vnm->vlib_main;
693 vnet_feature_config_main_t *fcm;
694 vnet_config_main_t *cm;
696 char *tx_node_name, *output_node_name;
698 pool_get (im->hw_interfaces, hw);
700 hw_index = hw - im->hw_interfaces;
701 hw->hw_if_index = hw_index;
703 if (dev_class->format_device_name)
704 hw->name = format (0, "%U", dev_class->format_device_name, dev_instance);
705 else if (hw_class->format_interface_name)
706 hw->name = format (0, "%U", hw_class->format_interface_name,
709 hw->name = format (0, "%s%x", hw_class->name, dev_instance);
711 if (!im->hw_interface_by_name)
712 im->hw_interface_by_name = hash_create_vec ( /* size */ 0,
713 sizeof (hw->name[0]),
716 hash_set_mem (im->hw_interface_by_name, hw->name, hw_index);
718 /* Make hardware interface point to software interface. */
720 vnet_sw_interface_t sw = {
721 .type = VNET_SW_INTERFACE_TYPE_HARDWARE,
722 .flood_class = VNET_FLOOD_CLASS_NORMAL,
723 .hw_if_index = hw_index
725 hw->sw_if_index = vnet_create_sw_interface_no_callbacks (vnm, &sw);
728 hw->dev_class_index = dev_class_index;
729 hw->dev_instance = dev_instance;
730 hw->hw_class_index = hw_class_index;
731 hw->hw_instance = hw_instance;
733 hw->max_rate_bits_per_sec = 0;
734 hw->min_packet_bytes = 0;
735 hw->per_packet_overhead_bytes = 0;
736 hw->max_l3_packet_bytes[VLIB_RX] = ~0;
737 hw->max_l3_packet_bytes[VLIB_TX] = ~0;
739 tx_node_name = (char *) format (0, "%v-tx", hw->name);
740 output_node_name = (char *) format (0, "%v-output", hw->name);
742 /* If we have previously deleted interface nodes, re-use them. */
743 if (vec_len (im->deleted_hw_interface_nodes) > 0)
745 vnet_hw_interface_nodes_t *hn;
746 vnet_interface_output_runtime_t *rt;
748 vlib_node_runtime_t *nrt;
750 hn = vec_end (im->deleted_hw_interface_nodes) - 1;
752 hw->tx_node_index = hn->tx_node_index;
753 hw->output_node_index = hn->output_node_index;
755 vlib_node_rename (vm, hw->tx_node_index, "%v", tx_node_name);
756 vlib_node_rename (vm, hw->output_node_index, "%v", output_node_name);
758 rt = vlib_node_get_runtime_data (vm, hw->output_node_index);
759 ASSERT (rt->is_deleted == 1);
761 rt->hw_if_index = hw_index;
762 rt->sw_if_index = hw->sw_if_index;
763 rt->dev_instance = hw->dev_instance;
765 rt = vlib_node_get_runtime_data (vm, hw->tx_node_index);
766 rt->hw_if_index = hw_index;
767 rt->sw_if_index = hw->sw_if_index;
768 rt->dev_instance = hw->dev_instance;
770 /* The new class may differ from the old one.
771 * Functions have to be updated. */
772 node = vlib_get_node (vm, hw->output_node_index);
773 node->function = dev_class->flatten_output_chains ?
774 vnet_interface_output_node_flatten_multiarch_select () :
775 vnet_interface_output_node_multiarch_select ();
776 node->format_trace = format_vnet_interface_output_trace;
777 nrt = vlib_node_get_runtime (vm, hw->output_node_index);
778 nrt->function = node->function;
780 node = vlib_get_node (vm, hw->tx_node_index);
781 node->function = dev_class->tx_function;
782 node->format_trace = dev_class->format_tx_trace;
783 nrt = vlib_node_get_runtime (vm, hw->tx_node_index);
784 nrt->function = node->function;
786 vlib_worker_thread_node_runtime_update ();
787 _vec_len (im->deleted_hw_interface_nodes) -= 1;
791 vlib_node_registration_t r;
792 vnet_interface_output_runtime_t rt = {
793 .hw_if_index = hw_index,
794 .sw_if_index = hw->sw_if_index,
795 .dev_instance = hw->dev_instance,
799 memset (&r, 0, sizeof (r));
800 r.type = VLIB_NODE_TYPE_INTERNAL;
801 r.runtime_data = &rt;
802 r.runtime_data_bytes = sizeof (rt);
804 r.vector_size = sizeof (u32);
806 r.flags = VLIB_NODE_FLAG_IS_OUTPUT;
807 r.name = tx_node_name;
808 r.function = dev_class->tx_function;
810 hw->tx_node_index = vlib_register_node (vm, &r);
812 vlib_node_add_named_next_with_slot (vm, hw->tx_node_index,
814 VNET_INTERFACE_TX_NEXT_DROP);
817 r.name = output_node_name;
818 r.function = dev_class->flatten_output_chains ?
819 vnet_interface_output_node_flatten_multiarch_select () :
820 vnet_interface_output_node_multiarch_select ();
821 r.format_trace = format_vnet_interface_output_trace;
826 "interface is deleted",
829 r.n_errors = ARRAY_LEN (e);
832 hw->output_node_index = vlib_register_node (vm, &r);
834 vlib_node_add_named_next_with_slot (vm, hw->output_node_index,
836 VNET_INTERFACE_OUTPUT_NEXT_DROP);
837 vlib_node_add_next_with_slot (vm, hw->output_node_index,
839 VNET_INTERFACE_OUTPUT_NEXT_TX);
841 /* add interface to the list of "output-interface" feature arc start nodes
842 and clone nexts from 1st interface if it exists */
843 fcm = vnet_feature_get_config_main (im->output_feature_arc_index);
844 cm = &fcm->config_main;
845 i = vec_len (cm->start_node_indices);
846 vec_validate (cm->start_node_indices, i);
847 cm->start_node_indices[i] = hw->output_node_index;
850 /* copy nexts from 1st interface */
851 vnet_hw_interface_t *first_hw;
852 vlib_node_t *first_node;
854 first_hw = vnet_get_hw_interface (vnm, /* hw_if_index */ 0);
855 first_node = vlib_get_node (vm, first_hw->output_node_index);
857 /* 1st 2 nexts are already added above */
858 for (i = 2; i < vec_len (first_node->next_nodes); i++)
859 vlib_node_add_next_with_slot (vm, hw->output_node_index,
860 first_node->next_nodes[i], i);
864 setup_output_node (vm, hw->output_node_index, hw_class);
865 setup_tx_node (vm, hw->tx_node_index, dev_class);
867 /* Call all up/down callbacks with zero flags when interface is created. */
868 vnet_sw_interface_set_flags_helper (vnm, hw->sw_if_index, /* flags */ 0,
869 VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE);
870 vnet_hw_interface_set_flags_helper (vnm, hw_index, /* flags */ 0,
871 VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE);
877 vnet_delete_hw_interface (vnet_main_t * vnm, u32 hw_if_index)
879 vnet_interface_main_t *im = &vnm->interface_main;
880 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
881 vlib_main_t *vm = vnm->vlib_main;
883 /* If it is up, mark it down. */
885 vnet_hw_interface_set_flags (vnm, hw_if_index, /* flags */ 0);
887 /* Call delete callbacks. */
888 call_hw_interface_add_del_callbacks (vnm, hw_if_index, /* is_create */ 0);
890 /* Delete software interface corresponding to hardware interface. */
891 vnet_delete_sw_interface (vnm, hw->sw_if_index);
893 /* Delete any sub-interfaces. */
897 hash_foreach (id, sw_if_index, hw->sub_interface_sw_if_index_by_id, ({
898 vnet_delete_sw_interface (vnm, sw_if_index);
904 vnet_hw_interface_nodes_t *dn;
905 vnet_interface_output_runtime_t *rt =
906 vlib_node_get_runtime_data (vm, hw->output_node_index);
908 /* Mark node runtime as deleted so output node (if called) will drop packets. */
911 vlib_node_rename (vm, hw->output_node_index,
912 "interface-%d-output-deleted", hw_if_index);
913 vlib_node_rename (vm, hw->tx_node_index, "interface-%d-tx-deleted",
915 vec_add2 (im->deleted_hw_interface_nodes, dn, 1);
916 dn->tx_node_index = hw->tx_node_index;
917 dn->output_node_index = hw->output_node_index;
920 hash_unset_mem (im->hw_interface_by_name, hw->name);
922 vec_free (hw->input_node_thread_index_by_queue);
923 vec_free (hw->dq_runtime_index_by_queue);
925 pool_put (im->hw_interfaces, hw);
929 vnet_hw_interface_walk_sw (vnet_main_t * vnm,
931 vnet_hw_sw_interface_walk_t fn, void *ctx)
933 vnet_hw_interface_t *hi;
936 hi = vnet_get_hw_interface (vnm, hw_if_index);
937 /* the super first, then the and sub interfaces */
938 fn (vnm, hi->sw_if_index, ctx);
941 hash_foreach (id, sw_if_index,
942 hi->sub_interface_sw_if_index_by_id,
944 fn (vnm, sw_if_index, ctx);
950 serialize_vnet_hw_interface_set_class (serialize_main_t * m, va_list * va)
952 u32 hw_if_index = va_arg (*va, u32);
953 char *hw_class_name = va_arg (*va, char *);
954 serialize_integer (m, hw_if_index, sizeof (hw_if_index));
955 serialize_cstring (m, hw_class_name);
959 unserialize_vnet_hw_interface_set_class (serialize_main_t * m, va_list * va)
961 CLIB_UNUSED (mc_main_t * mc) = va_arg (*va, mc_main_t *);
962 vnet_main_t *vnm = vnet_get_main ();
968 unserialize_integer (m, &hw_if_index, sizeof (hw_if_index));
969 unserialize_cstring (m, &hw_class_name);
971 hash_get (vnm->interface_main.hw_interface_class_by_name, hw_class_name);
973 error = vnet_hw_interface_set_class_helper (vnm, hw_if_index, p[0],
974 /* redistribute */ 0);
976 clib_error_report (error);
979 MC_SERIALIZE_MSG (vnet_hw_interface_set_class_msg, static) =
981 .name = "vnet_hw_interface_set_class",.serialize =
982 serialize_vnet_hw_interface_set_class,.unserialize =
983 unserialize_vnet_hw_interface_set_class,};
986 vnet_hw_interface_init_for_class (vnet_main_t * vnm, u32 hw_if_index,
987 u32 hw_class_index, u32 hw_instance)
989 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
990 vnet_hw_interface_class_t *hc =
991 vnet_get_hw_interface_class (vnm, hw_class_index);
993 hi->hw_class_index = hw_class_index;
994 hi->hw_instance = hw_instance;
995 setup_output_node (vnm->vlib_main, hi->output_node_index, hc);
998 static clib_error_t *
999 vnet_hw_interface_set_class_helper (vnet_main_t * vnm, u32 hw_if_index,
1000 u32 hw_class_index, u32 redistribute)
1002 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1003 vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, hi->sw_if_index);
1004 vnet_hw_interface_class_t *old_class =
1005 vnet_get_hw_interface_class (vnm, hi->hw_class_index);
1006 vnet_hw_interface_class_t *new_class =
1007 vnet_get_hw_interface_class (vnm, hw_class_index);
1008 vnet_device_class_t *dev_class =
1009 vnet_get_device_class (vnm, hi->dev_class_index);
1010 clib_error_t *error = 0;
1012 /* New class equals old class? Nothing to do. */
1013 if (hi->hw_class_index == hw_class_index)
1016 /* No need (and incorrect since admin up flag may be set) to do error checking when
1017 receiving unserialize message. */
1020 if (si->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
1021 return clib_error_return (0,
1022 "%v must be admin down to change class from %s to %s",
1023 hi->name, old_class->name, new_class->name);
1025 /* Make sure interface supports given class. */
1026 if ((new_class->is_valid_class_for_interface
1027 && !new_class->is_valid_class_for_interface (vnm, hw_if_index,
1029 || (dev_class->is_valid_class_for_interface
1030 && !dev_class->is_valid_class_for_interface (vnm, hw_if_index,
1032 return clib_error_return (0,
1033 "%v class cannot be changed from %s to %s",
1034 hi->name, old_class->name, new_class->name);
1036 if (vnm->vlib_main->mc_main)
1038 mc_serialize (vnm->vlib_main->mc_main,
1039 &vnet_hw_interface_set_class_msg, hw_if_index,
1045 if (old_class->hw_class_change)
1046 old_class->hw_class_change (vnm, hw_if_index, old_class->index,
1049 vnet_hw_interface_init_for_class (vnm, hw_if_index, new_class->index,
1052 if (new_class->hw_class_change)
1053 new_class->hw_class_change (vnm, hw_if_index, old_class->index,
1056 if (dev_class->hw_class_change)
1057 dev_class->hw_class_change (vnm, hw_if_index, new_class->index);
1063 vnet_hw_interface_set_class (vnet_main_t * vnm, u32 hw_if_index,
1066 return vnet_hw_interface_set_class_helper (vnm, hw_if_index, hw_class_index,
1067 /* redistribute */ 1);
1071 vnet_hw_interface_rx_redirect_to_node_helper (vnet_main_t * vnm,
1076 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1077 vnet_device_class_t *dev_class = vnet_get_device_class
1078 (vnm, hi->dev_class_index);
1082 /* $$$$ fixme someday maybe */
1083 ASSERT (vnm->vlib_main->mc_main == 0);
1085 if (dev_class->rx_redirect_to_node)
1087 dev_class->rx_redirect_to_node (vnm, hw_if_index, node_index);
1091 return VNET_API_ERROR_UNIMPLEMENTED;
1095 vnet_hw_interface_rx_redirect_to_node (vnet_main_t * vnm, u32 hw_if_index,
1098 return vnet_hw_interface_rx_redirect_to_node_helper (vnm, hw_if_index,
1100 1 /* redistribute */ );
1104 vnet_sw_interface_compare (vnet_main_t * vnm,
1105 uword sw_if_index0, uword sw_if_index1)
1107 vnet_sw_interface_t *sup0 = vnet_get_sup_sw_interface (vnm, sw_if_index0);
1108 vnet_sw_interface_t *sup1 = vnet_get_sup_sw_interface (vnm, sw_if_index1);
1109 vnet_hw_interface_t *h0 = vnet_get_hw_interface (vnm, sup0->hw_if_index);
1110 vnet_hw_interface_t *h1 = vnet_get_hw_interface (vnm, sup1->hw_if_index);
1113 return vec_cmp (h0->name, h1->name);
1114 return (word) h0->hw_instance - (word) h1->hw_instance;
1118 vnet_hw_interface_compare (vnet_main_t * vnm,
1119 uword hw_if_index0, uword hw_if_index1)
1121 vnet_hw_interface_t *h0 = vnet_get_hw_interface (vnm, hw_if_index0);
1122 vnet_hw_interface_t *h1 = vnet_get_hw_interface (vnm, hw_if_index1);
1125 return vec_cmp (h0->name, h1->name);
1126 return (word) h0->hw_instance - (word) h1->hw_instance;
1130 vnet_sw_interface_is_p2p (vnet_main_t * vnm, u32 sw_if_index)
1132 vnet_hw_interface_t *hw = vnet_get_sup_hw_interface (vnm, sw_if_index);
1133 vnet_hw_interface_class_t *hc =
1134 vnet_get_hw_interface_class (vnm, hw->hw_class_index);
1136 return (hc->flags & VNET_HW_INTERFACE_CLASS_FLAG_P2P);
1140 vnet_interface_init (vlib_main_t * vm)
1142 vnet_main_t *vnm = vnet_get_main ();
1143 vnet_interface_main_t *im = &vnm->interface_main;
1144 vlib_buffer_t *b = 0;
1145 vnet_buffer_opaque_t *o = 0;
1148 * Keep people from shooting themselves in the foot.
1150 if (sizeof (b->opaque) != sizeof (vnet_buffer_opaque_t))
1152 #define _(a) if (sizeof(o->a) > sizeof (o->unused)) \
1154 ("FATAL: size of opaque union subtype %s is %d (max %d)", \
1155 #a, sizeof(o->a), sizeof (o->unused));
1156 foreach_buffer_opaque_union_subtype;
1159 return clib_error_return
1160 (0, "FATAL: size of vlib buffer opaque %d, size of vnet opaque %d",
1161 sizeof (b->opaque), sizeof (vnet_buffer_opaque_t));
1164 im->sw_if_counter_lock = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES,
1165 CLIB_CACHE_LINE_BYTES);
1166 im->sw_if_counter_lock[0] = 1; /* should be no need */
1168 vec_validate (im->sw_if_counters, VNET_N_SIMPLE_INTERFACE_COUNTER - 1);
1169 im->sw_if_counters[VNET_INTERFACE_COUNTER_DROP].name = "drops";
1170 im->sw_if_counters[VNET_INTERFACE_COUNTER_PUNT].name = "punts";
1171 im->sw_if_counters[VNET_INTERFACE_COUNTER_IP4].name = "ip4";
1172 im->sw_if_counters[VNET_INTERFACE_COUNTER_IP6].name = "ip6";
1173 im->sw_if_counters[VNET_INTERFACE_COUNTER_RX_NO_BUF].name = "rx-no-buf";
1174 im->sw_if_counters[VNET_INTERFACE_COUNTER_RX_MISS].name = "rx-miss";
1175 im->sw_if_counters[VNET_INTERFACE_COUNTER_RX_ERROR].name = "rx-error";
1176 im->sw_if_counters[VNET_INTERFACE_COUNTER_TX_ERROR].name = "tx-error";
1178 vec_validate (im->combined_sw_if_counters,
1179 VNET_N_COMBINED_INTERFACE_COUNTER - 1);
1180 im->combined_sw_if_counters[VNET_INTERFACE_COUNTER_RX].name = "rx";
1181 im->combined_sw_if_counters[VNET_INTERFACE_COUNTER_TX].name = "tx";
1183 im->sw_if_counter_lock[0] = 0;
1185 im->device_class_by_name = hash_create_string ( /* size */ 0,
1188 vnet_device_class_t *c;
1190 c = vnm->device_class_registrations;
1194 c->index = vec_len (im->device_classes);
1195 hash_set_mem (im->device_class_by_name, c->name, c->index);
1196 vec_add1 (im->device_classes, c[0]);
1197 c = c->next_class_registration;
1201 im->hw_interface_class_by_name = hash_create_string ( /* size */ 0,
1204 im->sw_if_index_by_sup_and_sub = hash_create_mem (0, sizeof (u64),
1207 vnet_hw_interface_class_t *c;
1209 c = vnm->hw_interface_class_registrations;
1213 c->index = vec_len (im->hw_interface_classes);
1214 hash_set_mem (im->hw_interface_class_by_name, c->name, c->index);
1216 if (NULL == c->build_rewrite)
1217 c->build_rewrite = default_build_rewrite;
1218 if (NULL == c->update_adjacency)
1219 c->update_adjacency = default_update_adjacency;
1221 vec_add1 (im->hw_interface_classes, c[0]);
1222 c = c->next_class_registration;
1227 clib_error_t *error;
1229 if ((error = vlib_call_init_function (vm, vnet_interface_cli_init)))
1234 vnm->interface_tag_by_sw_if_index = hash_create (0, sizeof (uword));
1237 VLIB_INIT_FUNCTION (vnet_interface_init);
1239 /* Kludge to renumber interface names [only!] */
1241 vnet_interface_name_renumber (u32 sw_if_index, u32 new_show_dev_instance)
1244 vnet_main_t *vnm = vnet_get_main ();
1245 vnet_interface_main_t *im = &vnm->interface_main;
1246 vnet_hw_interface_t *hi = vnet_get_sup_hw_interface (vnm, sw_if_index);
1248 vnet_device_class_t *dev_class = vnet_get_device_class
1249 (vnm, hi->dev_class_index);
1251 if (dev_class->name_renumber == 0 || dev_class->format_device_name == 0)
1252 return VNET_API_ERROR_UNIMPLEMENTED;
1254 rv = dev_class->name_renumber (hi, new_show_dev_instance);
1259 hash_unset_mem (im->hw_interface_by_name, hi->name);
1260 vec_free (hi->name);
1261 /* Use the mapping we set up to call it Ishmael */
1262 hi->name = format (0, "%U", dev_class->format_device_name,
1265 hash_set_mem (im->hw_interface_by_name, hi->name, hi->hw_if_index);
1270 vnet_rename_interface (vnet_main_t * vnm, u32 hw_if_index, char *new_name)
1272 vnet_interface_main_t *im = &vnm->interface_main;
1273 vlib_main_t *vm = vnm->vlib_main;
1274 vnet_hw_interface_t *hw;
1276 clib_error_t *error = 0;
1278 hw = vnet_get_hw_interface (vnm, hw_if_index);
1281 return clib_error_return (0,
1282 "unable to find hw interface for index %u",
1286 old_name = hw->name;
1288 /* set new hw->name */
1289 hw->name = format (0, "%s", new_name);
1291 /* remove the old name to hw_if_index mapping and install the new one */
1292 hash_unset_mem (im->hw_interface_by_name, old_name);
1293 hash_set_mem (im->hw_interface_by_name, hw->name, hw_if_index);
1295 /* rename tx/output nodes */
1296 vlib_node_rename (vm, hw->tx_node_index, "%v-tx", hw->name);
1297 vlib_node_rename (vm, hw->output_node_index, "%v-output", hw->name);
1299 /* free the old name vector */
1300 vec_free (old_name);
1305 static clib_error_t *
1306 vnet_hw_interface_change_mac_address_helper (vnet_main_t * vnm,
1307 u32 hw_if_index, u64 mac_address)
1309 clib_error_t *error = 0;
1310 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1314 vnet_device_class_t *dev_class =
1315 vnet_get_device_class (vnm, hi->dev_class_index);
1316 if (dev_class->mac_addr_change_function)
1319 dev_class->mac_addr_change_function (hi, (char *) &mac_address);
1323 vnet_hw_interface_class_t *hw_class;
1325 hw_class = vnet_get_hw_interface_class (vnm, hi->hw_class_index);
1327 if (NULL != hw_class->mac_addr_change_function)
1328 hw_class->mac_addr_change_function (hi, (char *) &mac_address);
1333 clib_error_return (0,
1334 "MAC Address Change is not supported on this interface");
1340 clib_error_return (0,
1341 "mac address change is not supported for interface index %u",
1348 vnet_hw_interface_change_mac_address (vnet_main_t * vnm, u32 hw_if_index,
1351 return vnet_hw_interface_change_mac_address_helper
1352 (vnm, hw_if_index, mac_address);
1355 vnet_l3_packet_type_t
1356 vnet_link_to_l3_proto (vnet_link_t link)
1361 return (VNET_L3_PACKET_TYPE_IP4);
1363 return (VNET_L3_PACKET_TYPE_IP6);
1364 case VNET_LINK_MPLS:
1365 return (VNET_L3_PACKET_TYPE_MPLS);
1367 return (VNET_L3_PACKET_TYPE_ARP);
1368 case VNET_LINK_ETHERNET:
1378 default_build_rewrite (vnet_main_t * vnm,
1380 vnet_link_t link_type, const void *dst_address)
1386 default_update_adjacency (vnet_main_t * vnm, u32 sw_if_index, u32 ai)
1390 rewrite = vnet_build_rewrite_for_sw_interface (vnm, sw_if_index,
1391 adj_get_link_type (ai),
1394 adj_nbr_update_rewrite (ai, ADJ_NBR_REWRITE_FLAG_COMPLETE, rewrite);
1399 * fd.io coding-style-patch-verification: ON
1402 * eval: (c-set-style "gnu")