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>
48 VLIB_REGISTER_LOG_CLASS (if_default_log, static) = {
49 .class_name = "interface",
52 #define log_debug(fmt,...) vlib_log_debug(if_default_log.class, fmt, __VA_ARGS__)
53 #define log_err(fmt,...) vlib_log_err(if_default_log.class, fmt, __VA_ARGS__)
55 typedef enum vnet_interface_helper_flags_t_
57 VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE = (1 << 0),
58 VNET_INTERFACE_SET_FLAGS_HELPER_WANT_REDISTRIBUTE = (1 << 1),
59 } vnet_interface_helper_flags_t;
61 static clib_error_t *vnet_hw_interface_set_flags_helper (vnet_main_t * vnm,
63 vnet_hw_interface_flags_t
65 vnet_interface_helper_flags_t
68 static clib_error_t *vnet_sw_interface_set_flags_helper (vnet_main_t * vnm,
70 vnet_sw_interface_flags_t
72 vnet_interface_helper_flags_t
75 static clib_error_t *vnet_hw_interface_set_class_helper (vnet_main_t * vnm,
82 /* Either sw or hw interface index. */
87 } vnet_sw_hw_interface_state_t;
90 serialize_vec_vnet_sw_hw_interface_state (serialize_main_t * m, va_list * va)
92 vnet_sw_hw_interface_state_t *s =
93 va_arg (*va, vnet_sw_hw_interface_state_t *);
94 u32 n = va_arg (*va, u32);
96 for (i = 0; i < n; i++)
98 serialize_integer (m, s[i].sw_hw_if_index,
99 sizeof (s[i].sw_hw_if_index));
100 serialize_integer (m, s[i].flags, sizeof (s[i].flags));
105 unserialize_vec_vnet_sw_hw_interface_state (serialize_main_t * m,
108 vnet_sw_hw_interface_state_t *s =
109 va_arg (*va, vnet_sw_hw_interface_state_t *);
110 u32 n = va_arg (*va, u32);
112 for (i = 0; i < n; i++)
114 unserialize_integer (m, &s[i].sw_hw_if_index,
115 sizeof (s[i].sw_hw_if_index));
116 unserialize_integer (m, &s[i].flags, sizeof (s[i].flags));
120 static vnet_sw_interface_flags_t
121 vnet_hw_interface_flags_to_sw (vnet_hw_interface_flags_t hwf)
123 vnet_sw_interface_flags_t swf = VNET_SW_INTERFACE_FLAG_NONE;
125 if (hwf & VNET_HW_INTERFACE_FLAG_LINK_UP)
126 swf |= VNET_SW_INTERFACE_FLAG_ADMIN_UP;
132 serialize_vnet_interface_state (serialize_main_t * m, va_list * va)
134 vnet_main_t *vnm = va_arg (*va, vnet_main_t *);
135 vnet_sw_hw_interface_state_t *sts = 0, *st;
136 vnet_sw_interface_t *sif;
137 vnet_hw_interface_t *hif;
138 vnet_interface_main_t *im = &vnm->interface_main;
140 /* Serialize hardware interface classes since they may have changed.
141 Must do this before sending up/down flags. */
142 pool_foreach (hif, im->hw_interfaces) {
143 vnet_hw_interface_class_t * hw_class = vnet_get_hw_interface_class (vnm, hif->hw_class_index);
144 serialize_cstring (m, hw_class->name);
147 /* Send sw/hw interface state when non-zero. */
148 pool_foreach (sif, im->sw_interfaces) {
151 vec_add2 (sts, st, 1);
152 st->sw_hw_if_index = sif->sw_if_index;
153 st->flags = sif->flags;
157 vec_serialize (m, sts, serialize_vec_vnet_sw_hw_interface_state);
160 vec_set_len (sts, 0);
162 pool_foreach (hif, im->hw_interfaces) {
165 vec_add2 (sts, st, 1);
166 st->sw_hw_if_index = hif->hw_if_index;
167 st->flags = vnet_hw_interface_flags_to_sw(hif->flags);
171 vec_serialize (m, sts, serialize_vec_vnet_sw_hw_interface_state);
176 static vnet_hw_interface_flags_t
177 vnet_sw_interface_flags_to_hw (vnet_sw_interface_flags_t swf)
179 vnet_hw_interface_flags_t hwf = VNET_HW_INTERFACE_FLAG_NONE;
181 if (swf & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
182 hwf |= VNET_HW_INTERFACE_FLAG_LINK_UP;
188 unserialize_vnet_interface_state (serialize_main_t * m, va_list * va)
190 vnet_main_t *vnm = va_arg (*va, vnet_main_t *);
191 vnet_sw_hw_interface_state_t *sts = 0, *st;
193 /* First set interface hardware class. */
195 vnet_interface_main_t *im = &vnm->interface_main;
196 vnet_hw_interface_t *hif;
201 pool_foreach (hif, im->hw_interfaces) {
202 unserialize_cstring (m, &class_name);
203 p = hash_get_mem (im->hw_interface_class_by_name, class_name);
206 error = vnet_hw_interface_set_class_helper
207 (vnm, hif->hw_if_index, p[0], /* redistribute */ 0);
210 error = clib_error_return (0, "hw class %s AWOL?", class_name);
213 clib_error_report (error);
214 vec_free (class_name);
218 vec_unserialize (m, &sts, unserialize_vec_vnet_sw_hw_interface_state);
219 vec_foreach (st, sts)
220 vnet_sw_interface_set_flags_helper (vnm, st->sw_hw_if_index, st->flags,
221 /* no distribute */ 0);
224 vec_unserialize (m, &sts, unserialize_vec_vnet_sw_hw_interface_state);
225 vec_foreach (st, sts)
227 vnet_hw_interface_set_flags_helper
228 (vnm, st->sw_hw_if_index, vnet_sw_interface_flags_to_hw (st->flags),
229 /* no distribute */ 0);
234 static clib_error_t *
235 call_elf_section_interface_callbacks (vnet_main_t * vnm, u32 if_index,
237 _vnet_interface_function_list_elt_t **
240 _vnet_interface_function_list_elt_t *elt;
241 vnet_interface_function_priority_t prio;
242 clib_error_t *error = 0;
244 for (prio = VNET_ITF_FUNC_PRIORITY_LOW;
245 prio <= VNET_ITF_FUNC_PRIORITY_HIGH; prio++)
251 error = elt->fp (vnm, if_index, flags);
254 elt = elt->next_interface_function;
260 static clib_error_t *
261 call_hw_interface_add_del_callbacks (vnet_main_t * vnm, u32 hw_if_index,
264 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
265 vnet_hw_interface_class_t *hw_class =
266 vnet_get_hw_interface_class (vnm, hi->hw_class_index);
267 vnet_device_class_t *dev_class =
268 vnet_get_device_class (vnm, hi->dev_class_index);
269 clib_error_t *error = 0;
271 if (hw_class->interface_add_del_function
273 hw_class->interface_add_del_function (vnm, hw_if_index, is_create)))
276 if (dev_class->interface_add_del_function
278 dev_class->interface_add_del_function (vnm, hw_if_index,
282 error = call_elf_section_interface_callbacks
283 (vnm, hw_if_index, is_create, vnm->hw_interface_add_del_functions);
288 static clib_error_t *
289 call_sw_interface_add_del_callbacks (vnet_main_t * vnm, u32 sw_if_index,
292 return call_elf_section_interface_callbacks
293 (vnm, sw_if_index, is_create, vnm->sw_interface_add_del_functions);
296 static clib_error_t *
297 vnet_hw_interface_set_flags_helper (vnet_main_t * vnm, u32 hw_if_index,
298 vnet_hw_interface_flags_t flags,
299 vnet_interface_helper_flags_t
302 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
303 vnet_hw_interface_class_t *hw_class =
304 vnet_get_hw_interface_class (vnm, hi->hw_class_index);
306 clib_error_t *error = 0;
308 (helper_flags & VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE) != 0;
311 (VNET_HW_INTERFACE_FLAG_LINK_UP | VNET_HW_INTERFACE_FLAG_DUPLEX_MASK);
314 /* Call hardware interface add/del callbacks. */
316 call_hw_interface_add_del_callbacks (vnm, hw_if_index, is_create);
318 /* Already in the desired state? */
319 if (!is_create && (hi->flags & mask) == flags)
322 if ((hi->flags & VNET_HW_INTERFACE_FLAG_LINK_UP) !=
323 (flags & VNET_HW_INTERFACE_FLAG_LINK_UP))
325 /* Do hardware class (e.g. ethernet). */
326 if (hw_class->link_up_down_function
327 && (error = hw_class->link_up_down_function (vnm, hw_if_index,
331 error = call_elf_section_interface_callbacks
332 (vnm, hw_if_index, flags, vnm->hw_interface_link_up_down_functions);
343 log_err ("hw_set_flags_helper: %U", format_clib_error, error);
347 static clib_error_t *
348 vnet_sw_interface_set_flags_helper (vnet_main_t * vnm, u32 sw_if_index,
349 vnet_sw_interface_flags_t flags,
350 vnet_interface_helper_flags_t
353 vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
355 clib_error_t *error = 0;
357 (helper_flags & VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE) != 0;
360 mask = VNET_SW_INTERFACE_FLAG_ADMIN_UP | VNET_SW_INTERFACE_FLAG_PUNT;
366 call_sw_interface_add_del_callbacks (vnm, sw_if_index, is_create);
370 if (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
372 /* Notify everyone when the interface is created as admin up */
373 error = call_elf_section_interface_callbacks (vnm, sw_if_index,
376 sw_interface_admin_up_down_functions);
383 vnet_sw_interface_t *si_sup = si;
385 /* Check that super interface is in correct state. */
386 if (si->type == VNET_SW_INTERFACE_TYPE_SUB)
388 si_sup = vnet_get_sw_interface (vnm, si->sup_sw_if_index);
390 /* Check to see if we're bringing down the soft interface and if it's parent is up */
391 if ((flags != (si_sup->flags & mask)) &&
393 && ((si_sup->flags & mask) ==
394 VNET_SW_INTERFACE_FLAG_ADMIN_UP))))
396 error = clib_error_return (0, "super-interface %U must be %U",
397 format_vnet_sw_interface_name, vnm,
399 format_vnet_sw_interface_flags,
405 /* Already in the desired state? */
406 if ((si->flags & mask) == flags)
409 /* Sub-interfaces of hardware interfaces that do no redistribute,
410 do not redistribute themselves. */
411 if (si_sup->type == VNET_SW_INTERFACE_TYPE_HARDWARE)
413 vnet_hw_interface_t *hi =
414 vnet_get_hw_interface (vnm, si_sup->hw_if_index);
415 vnet_device_class_t *dev_class =
416 vnet_get_device_class (vnm, hi->dev_class_index);
417 if (!dev_class->redistribute)
419 ~VNET_INTERFACE_SET_FLAGS_HELPER_WANT_REDISTRIBUTE;
422 /* set the flags now before invoking the registered clients
423 * so that the state they query is consistent with the state here notified */
424 old_flags = si->flags;
427 if ((flags | old_flags) & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
428 error = call_elf_section_interface_callbacks
429 (vnm, sw_if_index, flags,
430 vnm->sw_interface_admin_up_down_functions);
434 /* restore flags on error */
435 si->flags = old_flags;
439 if (si->type == VNET_SW_INTERFACE_TYPE_HARDWARE)
441 vnet_hw_interface_t *hi =
442 vnet_get_hw_interface (vnm, si->hw_if_index);
443 vnet_hw_interface_class_t *hw_class =
444 vnet_get_hw_interface_class (vnm, hi->hw_class_index);
445 vnet_device_class_t *dev_class =
446 vnet_get_device_class (vnm, hi->dev_class_index);
448 if ((flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) &&
449 (si->flags & VNET_SW_INTERFACE_FLAG_ERROR))
451 error = clib_error_return (0, "Interface in the error state");
455 /* update si admin up flag in advance if we are going admin down */
456 if (!(flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP))
457 si->flags &= ~VNET_SW_INTERFACE_FLAG_ADMIN_UP;
459 if (dev_class->admin_up_down_function
460 && (error = dev_class->admin_up_down_function (vnm,
464 /* restore si admin up flag to it's original state on errors */
465 si->flags = old_flags;
469 if (hw_class->admin_up_down_function
470 && (error = hw_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 /* Admin down implies link down. */
480 if (!(flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
481 && (hi->flags & VNET_HW_INTERFACE_FLAG_LINK_UP))
482 vnet_hw_interface_set_flags_helper (vnm, si->hw_if_index,
484 ~VNET_HW_INTERFACE_FLAG_LINK_UP,
486 vnet_hw_if_update_runtime_data (vnm, si->hw_if_index);
495 log_err ("sw_set_flags_helper: %U", format_clib_error, error);
500 vnet_hw_interface_set_flags (vnet_main_t * vnm, u32 hw_if_index,
501 vnet_hw_interface_flags_t flags)
503 log_debug ("hw_set_flags: hw_if_index %u flags 0x%x", hw_if_index, flags);
504 return vnet_hw_interface_set_flags_helper
505 (vnm, hw_if_index, flags,
506 VNET_INTERFACE_SET_FLAGS_HELPER_WANT_REDISTRIBUTE);
510 vnet_sw_interface_set_flags (vnet_main_t * vnm, u32 sw_if_index,
511 vnet_sw_interface_flags_t flags)
513 log_debug ("sw_set_flags: sw_if_index %u flags 0x%x", sw_if_index, flags);
514 return vnet_sw_interface_set_flags_helper
515 (vnm, sw_if_index, flags,
516 VNET_INTERFACE_SET_FLAGS_HELPER_WANT_REDISTRIBUTE);
520 vnet_sw_interface_admin_up (vnet_main_t * vnm, u32 sw_if_index)
522 u32 flags = vnet_sw_interface_get_flags (vnm, sw_if_index);
523 log_debug ("sw_admin_up: sw_if_index %u", sw_if_index);
525 if (!(flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP))
527 flags |= VNET_SW_INTERFACE_FLAG_ADMIN_UP;
528 vnet_sw_interface_set_flags (vnm, sw_if_index, flags);
533 vnet_sw_interface_admin_down (vnet_main_t * vnm, u32 sw_if_index)
535 u32 flags = vnet_sw_interface_get_flags (vnm, sw_if_index);
536 log_debug ("sw_admin_down: sw_if_index %u", sw_if_index);
538 if (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
540 flags &= ~(VNET_SW_INTERFACE_FLAG_ADMIN_UP);
541 vnet_sw_interface_set_flags (vnm, sw_if_index, flags);
546 vnet_if_update_lookup_tables (vnet_main_t *vnm, u32 sw_if_index)
548 vnet_interface_main_t *im = &vnm->interface_main;
549 vnet_hw_interface_t *hi = vnet_get_sup_hw_interface (vnm, sw_if_index);
551 vec_validate_init_empty (im->hw_if_index_by_sw_if_index, sw_if_index, ~0);
552 vec_validate_init_empty (im->if_out_arc_end_next_index_by_sw_if_index,
555 im->hw_if_index_by_sw_if_index[sw_if_index] = hi->hw_if_index;
556 im->if_out_arc_end_next_index_by_sw_if_index[sw_if_index] =
557 hi->if_out_arc_end_node_next_index;
561 vnet_create_sw_interface_no_callbacks (vnet_main_t * vnm,
562 vnet_sw_interface_t * template)
564 vnet_interface_main_t *im = &vnm->interface_main;
565 vnet_sw_interface_t *sw;
568 pool_get (im->sw_interfaces, sw);
569 sw_if_index = sw - im->sw_interfaces;
574 sw->sw_if_index = sw_if_index;
575 if (sw->type == VNET_SW_INTERFACE_TYPE_HARDWARE)
576 sw->sup_sw_if_index = sw->sw_if_index;
578 /* Allocate counters for this interface. */
582 vnet_interface_counter_lock (im);
584 for (i = 0; i < vec_len (im->sw_if_counters); i++)
586 vlib_validate_simple_counter (&im->sw_if_counters[i], sw_if_index);
587 vlib_zero_simple_counter (&im->sw_if_counters[i], sw_if_index);
590 for (i = 0; i < vec_len (im->combined_sw_if_counters); i++)
592 vlib_validate_combined_counter (&im->combined_sw_if_counters[i],
594 vlib_zero_combined_counter (&im->combined_sw_if_counters[i],
598 vnet_interface_counter_unlock (im);
601 vnet_if_update_lookup_tables (vnm, sw_if_index);
606 vnet_create_sw_interface (vnet_main_t * vnm, vnet_sw_interface_t * template,
609 vnet_interface_main_t *im = &vnm->interface_main;
611 vnet_hw_interface_t *hi;
612 vnet_device_class_t *dev_class;
614 if (template->sub.eth.flags.two_tags == 1
615 && template->sub.eth.flags.exact_match == 1
616 && (template->sub.eth.flags.inner_vlan_id_any == 1
617 || template->sub.eth.flags.outer_vlan_id_any == 1))
619 char *str = "inner-dot1q any exact-match is unsupported";
620 error = clib_error_return (0, str);
621 log_err ("create_sw_interface: %s", str);
625 hi = vnet_get_sup_hw_interface (vnm, template->sup_sw_if_index);
626 dev_class = vnet_get_device_class (vnm, hi->dev_class_index);
628 if (template->type == VNET_SW_INTERFACE_TYPE_SUB &&
629 dev_class->subif_add_del_function)
631 error = dev_class->subif_add_del_function (vnm, hi->hw_if_index,
632 (struct vnet_sw_interface_t
638 *sw_if_index = vnet_create_sw_interface_no_callbacks (vnm, template);
639 error = vnet_sw_interface_set_flags_helper
640 (vnm, *sw_if_index, template->flags,
641 VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE);
645 /* undo the work done by vnet_create_sw_interface_no_callbacks() */
646 log_err ("create_sw_interface: set flags failed\n %U",
647 format_clib_error, error);
648 call_sw_interface_add_del_callbacks (vnm, *sw_if_index, 0);
649 vnet_sw_interface_t *sw =
650 pool_elt_at_index (im->sw_interfaces, *sw_if_index);
651 pool_put (im->sw_interfaces, sw);
655 vnet_sw_interface_t *sw =
656 pool_elt_at_index (im->sw_interfaces, *sw_if_index);
657 log_debug ("create_sw_interface: interface %U (sw_if_index %u) created",
658 format_vnet_sw_interface_name, vnm, sw, *sw_if_index);
665 vnet_delete_sw_interface (vnet_main_t * vnm, u32 sw_if_index)
667 vnet_interface_main_t *im = &vnm->interface_main;
668 vnet_sw_interface_t *sw =
669 pool_elt_at_index (im->sw_interfaces, sw_if_index);
671 log_debug ("delete_sw_interface: sw_if_index %u, name '%U'",
672 sw_if_index, format_vnet_sw_if_index_name, vnm, sw_if_index);
674 /* Check if the interface has config and is removed from L2 BD or XConnect */
675 vnet_clear_sw_interface_tag (vnm, sw_if_index);
677 /* Bring down interface in case it is up. */
679 vnet_sw_interface_set_flags (vnm, sw_if_index, /* flags */ 0);
681 call_sw_interface_add_del_callbacks (vnm, sw_if_index, /* is_create */ 0);
683 pool_put (im->sw_interfaces, sw);
686 static clib_error_t *
687 call_sw_interface_mtu_change_callbacks (vnet_main_t * vnm, u32 sw_if_index)
689 return call_elf_section_interface_callbacks
690 (vnm, sw_if_index, 0, vnm->sw_interface_mtu_change_functions);
694 vnet_sw_interface_set_mtu (vnet_main_t * vnm, u32 sw_if_index, u32 mtu)
696 vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
698 if (si->mtu[VNET_MTU_L3] != mtu)
700 si->mtu[VNET_MTU_L3] = mtu;
701 log_debug ("set_mtu: interface %U, new mtu %u",
702 format_vnet_sw_if_index_name, vnm, sw_if_index, mtu);
704 call_sw_interface_mtu_change_callbacks (vnm, sw_if_index);
709 vnet_sw_interface_set_protocol_mtu (vnet_main_t * vnm, u32 sw_if_index,
712 vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
713 bool changed = false;
716 for (i = 0; i < VNET_N_MTU; i++)
718 if (si->mtu[i] != mtu[i])
724 /* Notify interested parties */
727 log_debug ("set_protocol_mtu: interface %U l3 %u ip4 %u ip6 %u mpls %u",
728 format_vnet_sw_if_index_name, vnm, sw_if_index,
729 mtu[VNET_MTU_L3], mtu[VNET_MTU_IP4], mtu[VNET_MTU_IP6],
731 call_sw_interface_mtu_change_callbacks (vnm, sw_if_index);
736 vnet_sw_interface_ip_directed_broadcast (vnet_main_t * vnm,
737 u32 sw_if_index, u8 enable)
739 vnet_sw_interface_t *si;
741 si = vnet_get_sw_interface (vnm, sw_if_index);
744 si->flags |= VNET_SW_INTERFACE_FLAG_DIRECTED_BCAST;
746 si->flags &= ~VNET_SW_INTERFACE_FLAG_DIRECTED_BCAST;
748 ip4_directed_broadcast (sw_if_index, enable);
752 * Reflect a change in hardware MTU on protocol MTUs
755 sw_interface_walk_callback (vnet_main_t * vnm, u32 sw_if_index, void *ctx)
758 vnet_sw_interface_set_mtu (vnm, sw_if_index, *link_mtu);
759 return WALK_CONTINUE;
763 vnet_hw_interface_set_max_frame_size (vnet_main_t *vnm, u32 hw_if_index,
766 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
767 vnet_hw_interface_class_t *hw_if_class =
768 vnet_get_hw_interface_class (vnm, hi->hw_class_index);
769 clib_error_t *err = 0;
770 log_debug ("set_max_frame_size: interface %v, max_frame_size %u -> %u",
771 hi->name, hi->max_frame_size, fs);
773 if (hw_if_class->set_max_frame_size == 0)
774 return vnet_error (VNET_ERR_UNSUPPORTED,
775 "hw class doesn't support changing Max Frame Size");
777 if (hi->max_frame_size != fs)
780 if (hw_if_class->set_max_frame_size)
781 if ((err = hw_if_class->set_max_frame_size (vnm, hi, fs)))
783 hi->max_frame_size = fs;
784 mtu = fs - hi->frame_overhead;
785 vnet_hw_interface_walk_sw (vnm, hw_if_index, sw_interface_walk_callback,
791 vnet_hw_interface_set_mtu (vnet_main_t *vnm, u32 hw_if_index, u32 mtu)
793 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
794 return vnet_hw_interface_set_max_frame_size (vnm, hw_if_index,
795 mtu + hi->frame_overhead);
799 setup_tx_node (vlib_main_t * vm,
800 u32 node_index, vnet_device_class_t * dev_class)
802 vlib_node_t *n = vlib_get_node (vm, node_index);
804 n->format_trace = dev_class->format_tx_trace;
806 vlib_register_errors (vm, node_index, dev_class->tx_function_n_errors,
807 dev_class->tx_function_error_strings,
808 dev_class->tx_function_error_counters);
812 setup_output_node (vlib_main_t * vm,
813 u32 node_index, vnet_hw_interface_class_t * hw_class)
815 vlib_node_t *n = vlib_get_node (vm, node_index);
816 n->format_buffer = hw_class->format_header;
817 n->unformat_buffer = hw_class->unformat_header;
821 vnet_reset_interface_l3_output_node (vlib_main_t *vm, u32 sw_if_index)
823 vnet_set_interface_l3_output_node (vm, sw_if_index,
824 (u8 *) "interface-output");
828 vnet_set_interface_l3_output_node (vlib_main_t *vm, u32 sw_if_index,
831 vlib_node_t *l3_node;
833 l3_node = vlib_get_node_by_name (vm, output_node);
835 static char *arcs[] = {
843 for (a = 0; a < ARRAY_LEN (arcs); a++)
845 u8 arc = vnet_get_feature_arc_index (arcs[a]);
846 vnet_feature_modify_end_node (arc, sw_if_index, l3_node->index);
850 /* Register an interface instance. */
852 vnet_register_interface (vnet_main_t * vnm,
855 u32 hw_class_index, u32 hw_instance)
857 vnet_interface_main_t *im = &vnm->interface_main;
858 vnet_hw_interface_t *hw;
859 vnet_device_class_t *dev_class =
860 vnet_get_device_class (vnm, dev_class_index);
861 vnet_hw_interface_class_t *hw_class =
862 vnet_get_hw_interface_class (vnm, hw_class_index);
863 vlib_main_t *vm = vnm->vlib_main;
864 vnet_feature_config_main_t *fcm;
865 vnet_config_main_t *cm;
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 vnet_sw_interface_set_mtu (vnm, hw->sw_if_index, 0);
915 if (dev_class->tx_function == 0 && dev_class->tx_fn_registrations == 0)
916 goto no_output_nodes; /* No output/tx nodes to create */
918 /* If we have previously deleted interface nodes, re-use them. */
919 if (vec_len (im->deleted_hw_interface_nodes) > 0)
921 vnet_hw_interface_nodes_t *hn;
923 vlib_node_runtime_t *nrt;
925 hn = vec_end (im->deleted_hw_interface_nodes) - 1;
927 hw->tx_node_index = hn->tx_node_index;
928 hw->output_node_index = hn->output_node_index;
930 vlib_node_rename (vm, hw->tx_node_index, "%v-tx", hw->name);
931 vlib_node_rename (vm, hw->output_node_index, "%v-output", hw->name);
935 vnet_interface_output_runtime_t *rt;
938 vlib_node_get_runtime_data (this_vlib_main, hw->output_node_index);
939 ASSERT (rt->is_deleted == 1);
941 rt->hw_if_index = hw_index;
942 rt->sw_if_index = hw->sw_if_index;
943 rt->dev_instance = hw->dev_instance;
945 rt = vlib_node_get_runtime_data (this_vlib_main, hw->tx_node_index);
946 rt->hw_if_index = hw_index;
947 rt->sw_if_index = hw->sw_if_index;
948 rt->dev_instance = hw->dev_instance;
951 /* The new class may differ from the old one.
952 * Functions have to be updated. */
953 node = vlib_get_node (vm, hw->output_node_index);
954 node->format_trace = format_vnet_interface_output_trace;
955 node->node_fn_registrations = if_out_node->node_fn_registrations;
956 node->function = if_out_node->function;
960 nrt = vlib_node_get_runtime (this_vlib_main, hw->output_node_index);
961 nrt->function = node->function;
962 vlib_node_runtime_perf_counter (this_vlib_main, nrt, 0, 0, 0,
963 VLIB_NODE_RUNTIME_PERF_RESET);
966 node = vlib_get_node (vm, hw->tx_node_index);
967 if (dev_class->tx_fn_registrations)
969 node->node_fn_registrations = dev_class->tx_fn_registrations;
970 node->function = vlib_node_get_preferred_node_fn_variant (
971 vm, dev_class->tx_fn_registrations);
974 node->function = dev_class->tx_function;
975 node->format_trace = dev_class->format_tx_trace;
979 nrt = vlib_node_get_runtime (this_vlib_main, hw->tx_node_index);
980 nrt->function = node->function;
981 vlib_node_runtime_perf_counter (this_vlib_main, nrt, 0, 0, 0,
982 VLIB_NODE_RUNTIME_PERF_RESET);
985 vec_dec_len (im->deleted_hw_interface_nodes, 1);
989 vlib_node_registration_t r;
990 vnet_interface_output_runtime_t rt = {
991 .hw_if_index = hw_index,
992 .sw_if_index = hw->sw_if_index,
993 .dev_instance = hw->dev_instance,
997 clib_memset (&r, 0, sizeof (r));
998 r.type = VLIB_NODE_TYPE_INTERNAL;
999 r.runtime_data = &rt;
1000 r.runtime_data_bytes = sizeof (rt);
1001 r.scalar_size = sizeof (vnet_hw_if_tx_frame_t);
1002 r.vector_size = sizeof (u32);
1004 r.flags = VLIB_NODE_FLAG_IS_OUTPUT;
1005 if (dev_class->tx_fn_registrations)
1008 r.node_fn_registrations = dev_class->tx_fn_registrations;
1011 r.function = dev_class->tx_function;
1013 hw->tx_node_index = vlib_register_node (vm, &r, "%v-tx", hw->name);
1015 vlib_node_add_named_next_with_slot (vm, hw->tx_node_index,
1017 VNET_INTERFACE_TX_NEXT_DROP);
1020 r.format_trace = format_vnet_interface_output_trace;
1021 if (if_out_node->node_fn_registrations)
1024 r.node_fn_registrations = if_out_node->node_fn_registrations;
1027 r.function = if_out_node->function;
1030 static char *e[] = {
1031 "interface is down",
1032 "interface is deleted",
1033 "no tx queue available",
1036 r.n_errors = ARRAY_LEN (e);
1037 r.error_strings = e;
1039 hw->output_node_index =
1040 vlib_register_node (vm, &r, "%v-output", hw->name);
1042 vlib_node_add_named_next_with_slot (vm, hw->output_node_index,
1044 VNET_INTERFACE_OUTPUT_NEXT_DROP);
1045 vlib_node_add_next_with_slot (vm, hw->output_node_index,
1047 VNET_INTERFACE_OUTPUT_NEXT_TX);
1048 /* add interface to the list of "output-interface" feature arc start nodes
1049 and clone nexts from 1st interface if it exists */
1050 fcm = vnet_feature_get_config_main (im->output_feature_arc_index);
1051 cm = &fcm->config_main;
1052 i = vec_len (cm->start_node_indices);
1053 vec_validate (cm->start_node_indices, i);
1054 cm->start_node_indices[i] = hw->output_node_index;
1057 /* copy nexts from 1st interface */
1058 vnet_hw_interface_t *first_hw;
1059 vlib_node_t *first_node;
1061 first_hw = vnet_get_hw_interface (vnm, /* hw_if_index */ 0);
1062 first_node = vlib_get_node (vm, first_hw->output_node_index);
1064 /* 1st 2 nexts are already added above */
1065 for (i = 2; i < vec_len (first_node->next_nodes); i++)
1066 vlib_node_add_next_with_slot (vm, hw->output_node_index,
1067 first_node->next_nodes[i], i);
1071 hw->if_out_arc_end_node_next_index = vlib_node_add_next (
1072 vm, vnet_interface_output_arc_end_node.index, hw->tx_node_index);
1073 vnet_if_update_lookup_tables (vnm, hw->sw_if_index);
1074 setup_output_node (vm, hw->output_node_index, hw_class);
1075 setup_tx_node (vm, hw->tx_node_index, dev_class);
1078 /* Call all up/down callbacks with zero flags when interface is created. */
1079 vnet_sw_interface_set_flags_helper (vnm, hw->sw_if_index, /* flags */ 0,
1080 VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE);
1081 vnet_hw_interface_set_flags_helper (vnm, hw_index, /* flags */ 0,
1082 VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE);
1087 vnet_delete_hw_interface (vnet_main_t * vnm, u32 hw_if_index)
1089 vnet_interface_main_t *im = &vnm->interface_main;
1090 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
1091 vlib_main_t *vm = vnm->vlib_main;
1092 vnet_device_class_t *dev_class = vnet_get_device_class (vnm,
1093 hw->dev_class_index);
1094 /* If it is up, mark it down. */
1096 vnet_hw_interface_set_flags (vnm, hw_if_index, /* flags */ 0);
1098 /* Call delete callbacks. */
1099 call_hw_interface_add_del_callbacks (vnm, hw_if_index, /* is_create */ 0);
1101 /* delete rx & tx queues */
1102 vnet_hw_if_unregister_all_rx_queues (vnm, hw_if_index);
1103 vnet_hw_if_unregister_all_tx_queues (vnm, hw_if_index);
1104 vnet_hw_if_update_runtime_data (vnm, hw_if_index);
1106 /* Delete any sub-interfaces. */
1108 u32 id, sw_if_index;
1109 hash_foreach (id, sw_if_index, hw->sub_interface_sw_if_index_by_id,
1111 vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
1112 u64 sup_and_sub_key =
1113 ((u64) (si->sup_sw_if_index) << 32) | (u64) si->sub.id;
1114 hash_unset_mem_free (&im->sw_if_index_by_sup_and_sub, &sup_and_sub_key);
1115 vnet_delete_sw_interface (vnm, sw_if_index);
1117 hash_free (hw->sub_interface_sw_if_index_by_id);
1120 /* Delete software interface corresponding to hardware interface. */
1121 vnet_delete_sw_interface (vnm, hw->sw_if_index);
1123 if (dev_class->tx_function)
1125 /* Put output/tx nodes into recycle pool */
1126 vnet_hw_interface_nodes_t *dn;
1128 foreach_vlib_main ()
1130 vnet_interface_output_runtime_t *rt =
1131 vlib_node_get_runtime_data (this_vlib_main, hw->output_node_index);
1133 /* Mark node runtime as deleted so output node (if called)
1134 * will drop packets. */
1138 vlib_node_rename (vm, hw->output_node_index,
1139 "interface-%d-output-deleted", hw_if_index);
1140 vlib_node_rename (vm, hw->tx_node_index, "interface-%d-tx-deleted",
1142 vlib_unregister_errors (vm, hw->output_node_index);
1143 vlib_unregister_errors (vm, hw->tx_node_index);
1144 vec_add2 (im->deleted_hw_interface_nodes, dn, 1);
1145 dn->tx_node_index = hw->tx_node_index;
1146 dn->output_node_index = hw->output_node_index;
1148 hash_unset_mem (im->hw_interface_by_name, hw->name);
1149 vec_free (hw->name);
1150 vec_free (hw->hw_address);
1151 vec_free (hw->output_node_thread_runtimes);
1152 pool_put (im->hw_interfaces, hw);
1156 vnet_hw_interface_walk_sw (vnet_main_t * vnm,
1158 vnet_hw_sw_interface_walk_t fn, void *ctx)
1160 vnet_hw_interface_t *hi;
1161 u32 id, sw_if_index;
1163 hi = vnet_get_hw_interface (vnm, hw_if_index);
1164 /* the super first, then the sub interfaces */
1165 if (WALK_STOP == fn (vnm, hi->sw_if_index, ctx))
1168 hash_foreach (id, sw_if_index,
1169 hi->sub_interface_sw_if_index_by_id,
1171 if (WALK_STOP == fn (vnm, sw_if_index, ctx))
1177 vnet_hw_interface_walk (vnet_main_t * vnm,
1178 vnet_hw_interface_walk_t fn, void *ctx)
1180 vnet_interface_main_t *im;
1181 vnet_hw_interface_t *hi;
1183 im = &vnm->interface_main;
1185 pool_foreach (hi, im->hw_interfaces)
1187 if (WALK_STOP == fn(vnm, hi->hw_if_index, ctx))
1193 vnet_sw_interface_walk (vnet_main_t * vnm,
1194 vnet_sw_interface_walk_t fn, void *ctx)
1196 vnet_interface_main_t *im;
1197 vnet_sw_interface_t *si;
1199 im = &vnm->interface_main;
1201 pool_foreach (si, im->sw_interfaces)
1203 if (WALK_STOP == fn (vnm, si, ctx))
1209 vnet_hw_interface_init_for_class (vnet_main_t * vnm, u32 hw_if_index,
1210 u32 hw_class_index, u32 hw_instance)
1212 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1213 vnet_hw_interface_class_t *hc =
1214 vnet_get_hw_interface_class (vnm, hw_class_index);
1216 hi->hw_class_index = hw_class_index;
1217 hi->hw_instance = hw_instance;
1218 setup_output_node (vnm->vlib_main, hi->output_node_index, hc);
1221 static clib_error_t *
1222 vnet_hw_interface_set_class_helper (vnet_main_t * vnm, u32 hw_if_index,
1223 u32 hw_class_index, u32 redistribute)
1225 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1226 vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, hi->sw_if_index);
1227 vnet_hw_interface_class_t *old_class =
1228 vnet_get_hw_interface_class (vnm, hi->hw_class_index);
1229 vnet_hw_interface_class_t *new_class =
1230 vnet_get_hw_interface_class (vnm, hw_class_index);
1231 vnet_device_class_t *dev_class =
1232 vnet_get_device_class (vnm, hi->dev_class_index);
1233 clib_error_t *error = 0;
1235 /* New class equals old class? Nothing to do. */
1236 if (hi->hw_class_index == hw_class_index)
1239 /* No need (and incorrect since admin up flag may be set) to do error checking when
1240 receiving unserialize message. */
1243 if (si->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
1244 return clib_error_return (0,
1245 "%v must be admin down to change class from %s to %s",
1246 hi->name, old_class->name, new_class->name);
1248 /* Make sure interface supports given class. */
1249 if ((new_class->is_valid_class_for_interface
1250 && !new_class->is_valid_class_for_interface (vnm, hw_if_index,
1252 || (dev_class->is_valid_class_for_interface
1253 && !dev_class->is_valid_class_for_interface (vnm, hw_if_index,
1255 return clib_error_return (0,
1256 "%v class cannot be changed from %s to %s",
1257 hi->name, old_class->name, new_class->name);
1261 if (old_class->hw_class_change)
1262 old_class->hw_class_change (vnm, hw_if_index, old_class->index,
1265 vnet_hw_interface_init_for_class (vnm, hw_if_index, new_class->index,
1268 if (new_class->hw_class_change)
1269 new_class->hw_class_change (vnm, hw_if_index, old_class->index,
1272 if (dev_class->hw_class_change)
1273 dev_class->hw_class_change (vnm, hw_if_index, new_class->index);
1279 vnet_hw_interface_set_class (vnet_main_t * vnm, u32 hw_if_index,
1282 return vnet_hw_interface_set_class_helper (vnm, hw_if_index, hw_class_index,
1283 /* redistribute */ 1);
1287 vnet_hw_interface_rx_redirect_to_node_helper (vnet_main_t * vnm,
1292 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1293 vnet_device_class_t *dev_class = vnet_get_device_class
1294 (vnm, hi->dev_class_index);
1296 if (dev_class->rx_redirect_to_node)
1298 dev_class->rx_redirect_to_node (vnm, hw_if_index, node_index);
1302 return VNET_API_ERROR_UNIMPLEMENTED;
1306 vnet_hw_interface_rx_redirect_to_node (vnet_main_t * vnm, u32 hw_if_index,
1309 return vnet_hw_interface_rx_redirect_to_node_helper (vnm, hw_if_index,
1311 1 /* redistribute */ );
1315 vnet_sw_interface_compare (vnet_main_t * vnm,
1316 uword sw_if_index0, uword sw_if_index1)
1318 vnet_sw_interface_t *sup0 = vnet_get_sup_sw_interface (vnm, sw_if_index0);
1319 vnet_sw_interface_t *sup1 = vnet_get_sup_sw_interface (vnm, sw_if_index1);
1320 vnet_hw_interface_t *h0 = vnet_get_hw_interface (vnm, sup0->hw_if_index);
1321 vnet_hw_interface_t *h1 = vnet_get_hw_interface (vnm, sup1->hw_if_index);
1324 return vec_cmp (h0->name, h1->name);
1325 return (word) h0->hw_instance - (word) h1->hw_instance;
1329 vnet_hw_interface_compare (vnet_main_t * vnm,
1330 uword hw_if_index0, uword hw_if_index1)
1332 vnet_hw_interface_t *h0 = vnet_get_hw_interface (vnm, hw_if_index0);
1333 vnet_hw_interface_t *h1 = vnet_get_hw_interface (vnm, hw_if_index1);
1336 return vec_cmp (h0->name, h1->name);
1337 return (word) h0->hw_instance - (word) h1->hw_instance;
1341 vnet_sw_interface_is_p2p (vnet_main_t * vnm, u32 sw_if_index)
1343 vnet_sw_interface_t *si = vnet_get_sw_interface_or_null (vnm, sw_if_index);
1347 if ((si->type == VNET_SW_INTERFACE_TYPE_P2P) ||
1348 (si->type == VNET_SW_INTERFACE_TYPE_PIPE))
1351 vnet_hw_interface_t *hw = vnet_get_sup_hw_interface (vnm, sw_if_index);
1352 vnet_hw_interface_class_t *hc =
1353 vnet_get_hw_interface_class (vnm, hw->hw_class_index);
1355 return (hc->flags & VNET_HW_INTERFACE_CLASS_FLAG_P2P);
1359 vnet_sw_interface_is_nbma (vnet_main_t * vnm, u32 sw_if_index)
1361 vnet_hw_interface_t *hw = vnet_get_sup_hw_interface (vnm, sw_if_index);
1362 vnet_hw_interface_class_t *hc =
1363 vnet_get_hw_interface_class (vnm, hw->hw_class_index);
1365 return (hc->flags & VNET_HW_INTERFACE_CLASS_FLAG_NBMA);
1369 vnet_sw_interface_supports_addressing (vnet_main_t *vnm, u32 sw_if_index)
1371 if (sw_if_index == 0)
1373 return clib_error_create (
1374 "local0 interface doesn't support IP addressing");
1377 if (vnet_sw_interface_is_sub (vnm, sw_if_index))
1379 vnet_sw_interface_t *si;
1380 si = vnet_get_sw_interface_or_null (vnm, sw_if_index);
1381 if (si && si->type == VNET_SW_INTERFACE_TYPE_SUB &&
1382 si->sub.eth.flags.exact_match == 0)
1384 return clib_error_create (
1385 "sub-interface without exact-match doesn't support IP addressing");
1392 vnet_register_device_class (vlib_main_t *vm, vnet_device_class_t *c)
1394 vnet_main_t *vnm = vnet_get_main ();
1395 vnet_interface_main_t *im = &vnm->interface_main;
1396 c->index = vec_len (im->device_classes);
1397 hash_set_mem (im->device_class_by_name, c->name, c->index);
1399 /* to avoid confusion, please remove ".tx_function" statement
1400 from VNET_DEVICE_CLASS() if using function candidates */
1401 ASSERT (c->tx_fn_registrations == 0 || c->tx_function == 0);
1403 if (c->tx_fn_registrations)
1405 vlib_node_get_preferred_node_fn_variant (vm, c->tx_fn_registrations);
1407 vec_add1 (im->device_classes, c[0]);
1412 vnet_interface_init (vlib_main_t * vm)
1414 vnet_main_t *vnm = vnet_get_main ();
1415 vnet_interface_main_t *im = &vnm->interface_main;
1416 vlib_buffer_t *b = 0;
1417 vnet_buffer_opaque_t *o = 0;
1418 clib_error_t *error;
1421 * Keep people from shooting themselves in the foot.
1423 if (sizeof (b->opaque) != sizeof (vnet_buffer_opaque_t))
1425 #define _(a) if (sizeof(o->a) > sizeof (o->unused)) \
1427 ("FATAL: size of opaque union subtype %s is %d (max %d)", \
1428 #a, sizeof(o->a), sizeof (o->unused));
1429 foreach_buffer_opaque_union_subtype;
1432 return clib_error_return
1433 (0, "FATAL: size of vlib buffer opaque %d, size of vnet opaque %d",
1434 sizeof (b->opaque), sizeof (vnet_buffer_opaque_t));
1437 clib_spinlock_init (&im->sw_if_counter_lock);
1438 clib_spinlock_lock (&im->sw_if_counter_lock); /* should be no need */
1440 vec_validate (im->sw_if_counters, VNET_N_SIMPLE_INTERFACE_COUNTER - 1);
1442 im->sw_if_counters[VNET_INTERFACE_COUNTER_##E].name = #n; \
1443 im->sw_if_counters[VNET_INTERFACE_COUNTER_##E].stat_segment_name = "/" #p "/" #n;
1444 foreach_simple_interface_counter_name
1446 vec_validate (im->combined_sw_if_counters,
1447 VNET_N_COMBINED_INTERFACE_COUNTER - 1);
1449 im->combined_sw_if_counters[VNET_INTERFACE_COUNTER_##E].name = #n; \
1450 im->combined_sw_if_counters[VNET_INTERFACE_COUNTER_##E].stat_segment_name = "/" #p "/" #n;
1451 foreach_combined_interface_counter_name
1453 clib_spinlock_unlock (&im->sw_if_counter_lock);
1455 im->device_class_by_name = hash_create_string ( /* size */ 0,
1458 for (vnet_device_class_t *c = vnm->device_class_registrations; c;
1459 c = c->next_class_registration)
1460 vnet_register_device_class (vm, c);
1462 im->hw_interface_class_by_name = hash_create_string ( /* size */ 0,
1465 im->rxq_index_by_hw_if_index_and_queue_id =
1466 hash_create_mem (0, sizeof (u64), sizeof (u32));
1467 im->txq_index_by_hw_if_index_and_queue_id =
1468 hash_create_mem (0, sizeof (u64), sizeof (u32));
1469 im->sw_if_index_by_sup_and_sub = hash_create_mem (0, sizeof (u64),
1472 vnet_hw_interface_class_t *c;
1474 c = vnm->hw_interface_class_registrations;
1478 c->index = vec_len (im->hw_interface_classes);
1479 hash_set_mem (im->hw_interface_class_by_name, c->name, c->index);
1481 if (NULL == c->build_rewrite)
1482 c->build_rewrite = default_build_rewrite;
1483 if (NULL == c->update_adjacency)
1484 c->update_adjacency = default_update_adjacency;
1486 vec_add1 (im->hw_interface_classes, c[0]);
1487 c = c->next_class_registration;
1491 /* init per-thread data */
1492 vec_validate_aligned (im->per_thread_data, vlib_num_workers (),
1493 CLIB_CACHE_LINE_BYTES);
1495 if ((error = vlib_call_init_function (vm, vnet_interface_cli_init)))
1498 vnm->interface_tag_by_sw_if_index = hash_create (0, sizeof (uword));
1503 VLIB_INIT_FUNCTION (vnet_interface_init);
1505 /* Kludge to renumber interface names [only!] */
1507 vnet_interface_name_renumber (u32 sw_if_index, u32 new_show_dev_instance)
1510 vnet_main_t *vnm = vnet_get_main ();
1511 vnet_interface_main_t *im = &vnm->interface_main;
1512 vnet_hw_interface_t *hi = vnet_get_sup_hw_interface (vnm, sw_if_index);
1514 vnet_device_class_t *dev_class = vnet_get_device_class
1515 (vnm, hi->dev_class_index);
1517 if (dev_class->name_renumber == 0 || dev_class->format_device_name == 0)
1518 return VNET_API_ERROR_UNIMPLEMENTED;
1520 rv = dev_class->name_renumber (hi, new_show_dev_instance);
1525 hash_unset_mem (im->hw_interface_by_name, hi->name);
1526 vec_free (hi->name);
1527 /* Use the mapping we set up to call it Ishmael */
1528 hi->name = format (0, "%U", dev_class->format_device_name,
1531 hash_set_mem (im->hw_interface_by_name, hi->name, hi->hw_if_index);
1536 vnet_rename_interface (vnet_main_t * vnm, u32 hw_if_index, char *new_name)
1538 vnet_interface_main_t *im = &vnm->interface_main;
1539 vlib_main_t *vm = vnm->vlib_main;
1540 vnet_hw_interface_t *hw;
1542 clib_error_t *error = 0;
1544 hw = vnet_get_hw_interface (vnm, hw_if_index);
1547 return clib_error_return (0,
1548 "unable to find hw interface for index %u",
1552 old_name = hw->name;
1554 /* set new hw->name */
1555 hw->name = format (0, "%s", new_name);
1557 /* remove the old name to hw_if_index mapping and install the new one */
1558 hash_unset_mem (im->hw_interface_by_name, old_name);
1559 hash_set_mem (im->hw_interface_by_name, hw->name, hw_if_index);
1561 /* rename tx/output nodes */
1562 vlib_node_rename (vm, hw->tx_node_index, "%v-tx", hw->name);
1563 vlib_node_rename (vm, hw->output_node_index, "%v-output", hw->name);
1565 /* free the old name vector */
1566 vec_free (old_name);
1572 vnet_hw_interface_add_del_mac_address (vnet_main_t * vnm,
1574 const u8 * mac_address, u8 is_add)
1576 clib_error_t *error = 0;
1577 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1579 vnet_device_class_t *dev_class =
1580 vnet_get_device_class (vnm, hi->dev_class_index);
1582 if (!hi->hw_address)
1586 (0, "Secondary MAC Addresses not supported for interface index %u",
1591 if (dev_class->mac_addr_add_del_function)
1592 error = dev_class->mac_addr_add_del_function (hi, mac_address, is_add);
1596 vnet_hw_interface_class_t *hw_class;
1598 hw_class = vnet_get_hw_interface_class (vnm, hi->hw_class_index);
1600 if (NULL != hw_class->mac_addr_add_del_function)
1601 error = hw_class->mac_addr_add_del_function (hi, mac_address, is_add);
1604 /* If no errors, add to the list of secondary MACs on the ethernet intf */
1606 ethernet_interface_add_del_address (ðernet_main, hw_if_index,
1607 mac_address, is_add);
1611 log_err ("hw_add_del_mac_address: %U", format_clib_error, error);
1615 static clib_error_t *
1616 vnet_hw_interface_change_mac_address_helper (vnet_main_t * vnm,
1618 const u8 * mac_address)
1620 clib_error_t *error = 0;
1621 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1625 u8 *old_address = vec_dup (hi->hw_address);
1626 vnet_device_class_t *dev_class =
1627 vnet_get_device_class (vnm, hi->dev_class_index);
1628 if (dev_class->mac_addr_change_function)
1631 dev_class->mac_addr_change_function (hi, old_address,
1636 vnet_hw_interface_class_t *hw_class;
1638 hw_class = vnet_get_hw_interface_class (vnm, hi->hw_class_index);
1640 if (NULL != hw_class->mac_addr_change_function)
1641 hw_class->mac_addr_change_function (hi, old_address, mac_address);
1646 clib_error_return (0,
1647 "MAC Address Change is not supported on this interface");
1649 vec_free (old_address);
1654 clib_error_return (0,
1655 "mac address change is not supported for interface index %u",
1662 vnet_hw_interface_change_mac_address (vnet_main_t * vnm, u32 hw_if_index,
1663 const u8 * mac_address)
1665 return vnet_hw_interface_change_mac_address_helper
1666 (vnm, hw_if_index, mac_address);
1670 vnet_sw_interface_check_table_same (u32 unnumbered_sw_if_index,
1673 if (ip4_main.fib_index_by_sw_if_index[unnumbered_sw_if_index] !=
1674 ip4_main.fib_index_by_sw_if_index[ip_sw_if_index])
1675 return VNET_API_ERROR_UNEXPECTED_INTF_STATE;
1677 if (ip4_main.mfib_index_by_sw_if_index[unnumbered_sw_if_index] !=
1678 ip4_main.mfib_index_by_sw_if_index[ip_sw_if_index])
1679 return VNET_API_ERROR_UNEXPECTED_INTF_STATE;
1681 if (ip6_main.fib_index_by_sw_if_index[unnumbered_sw_if_index] !=
1682 ip6_main.fib_index_by_sw_if_index[ip_sw_if_index])
1683 return VNET_API_ERROR_UNEXPECTED_INTF_STATE;
1685 if (ip6_main.mfib_index_by_sw_if_index[unnumbered_sw_if_index] !=
1686 ip6_main.mfib_index_by_sw_if_index[ip_sw_if_index])
1687 return VNET_API_ERROR_UNEXPECTED_INTF_STATE;
1692 /* update the unnumbered state of an interface*/
1694 vnet_sw_interface_update_unnumbered (u32 unnumbered_sw_if_index,
1695 u32 ip_sw_if_index, u8 enable)
1697 vnet_main_t *vnm = vnet_get_main ();
1698 vnet_sw_interface_t *si;
1702 si = vnet_get_sw_interface (vnm, unnumbered_sw_if_index);
1703 was_unnum = (si->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED);
1707 rv = vnet_sw_interface_check_table_same (unnumbered_sw_if_index,
1711 si->flags |= VNET_SW_INTERFACE_FLAG_UNNUMBERED;
1712 si->unnumbered_sw_if_index = ip_sw_if_index;
1714 ip4_main.lookup_main.if_address_pool_index_by_sw_if_index
1715 [unnumbered_sw_if_index] =
1717 lookup_main.if_address_pool_index_by_sw_if_index[ip_sw_if_index];
1719 lookup_main.if_address_pool_index_by_sw_if_index
1720 [unnumbered_sw_if_index] =
1722 lookup_main.if_address_pool_index_by_sw_if_index[ip_sw_if_index];
1727 * Unless the interface is actually unnumbered, don't
1728 * smash e.g. if_address_pool_index_by_sw_if_index
1730 if (si->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED)
1732 si->flags &= ~(VNET_SW_INTERFACE_FLAG_UNNUMBERED);
1733 si->unnumbered_sw_if_index = (u32) ~0;
1735 ip4_main.lookup_main
1736 .if_address_pool_index_by_sw_if_index[unnumbered_sw_if_index] = ~0;
1737 ip6_main.lookup_main
1738 .if_address_pool_index_by_sw_if_index[unnumbered_sw_if_index] = ~0;
1742 if (was_unnum != (si->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED))
1744 ip4_sw_interface_enable_disable (unnumbered_sw_if_index, enable);
1745 ip6_sw_interface_enable_disable (unnumbered_sw_if_index, enable);
1751 vnet_l3_packet_type_t
1752 vnet_link_to_l3_proto (vnet_link_t link)
1757 return (VNET_L3_PACKET_TYPE_IP4);
1759 return (VNET_L3_PACKET_TYPE_IP6);
1760 case VNET_LINK_MPLS:
1761 return (VNET_L3_PACKET_TYPE_MPLS);
1763 return (VNET_L3_PACKET_TYPE_ARP);
1764 case VNET_LINK_ETHERNET:
1774 vnet_link_to_mtu (vnet_link_t link)
1779 return (VNET_MTU_IP4);
1781 return (VNET_MTU_IP6);
1782 case VNET_LINK_MPLS:
1783 return (VNET_MTU_MPLS);
1785 return (VNET_MTU_L3);
1790 default_build_rewrite (vnet_main_t * vnm,
1792 vnet_link_t link_type, const void *dst_address)
1798 default_update_adjacency (vnet_main_t * vnm, u32 sw_if_index, u32 ai)
1800 ip_adjacency_t *adj;
1804 switch (adj->lookup_next_index)
1806 case IP_LOOKUP_NEXT_GLEAN:
1807 adj_glean_update_rewrite (ai);
1809 case IP_LOOKUP_NEXT_ARP:
1810 case IP_LOOKUP_NEXT_BCAST:
1812 * default rewrite in neighbour adj
1814 adj_nbr_update_rewrite
1816 ADJ_NBR_REWRITE_FLAG_COMPLETE,
1817 vnet_build_rewrite_for_sw_interface (vnm,
1819 adj_get_link_type (ai), NULL));
1821 case IP_LOOKUP_NEXT_MCAST:
1823 * mcast traffic also uses default rewrite string with no mcast
1824 * switch time updates.
1826 adj_mcast_update_rewrite
1828 vnet_build_rewrite_for_sw_interface (vnm,
1830 adj_get_link_type (ai),
1833 case IP_LOOKUP_NEXT_DROP:
1834 case IP_LOOKUP_NEXT_PUNT:
1835 case IP_LOOKUP_NEXT_LOCAL:
1836 case IP_LOOKUP_NEXT_REWRITE:
1837 case IP_LOOKUP_NEXT_MCAST_MIDCHAIN:
1838 case IP_LOOKUP_NEXT_MIDCHAIN:
1839 case IP_LOOKUP_NEXT_ICMP_ERROR:
1840 case IP_LOOKUP_N_NEXT:
1847 vnet_hw_interface_set_rss_queues (vnet_main_t * vnm,
1848 vnet_hw_interface_t * hi,
1849 clib_bitmap_t * bitmap)
1851 clib_error_t *error = 0;
1852 vnet_device_class_t *dev_class =
1853 vnet_get_device_class (vnm, hi->dev_class_index);
1855 if (dev_class->set_rss_queues_function)
1857 if (clib_bitmap_count_set_bits (bitmap) == 0)
1859 error = clib_error_return (0,
1860 "must assign at least one valid rss queue");
1864 error = dev_class->set_rss_queues_function (vnm, hi, bitmap);
1868 error = clib_error_return (0,
1869 "setting rss queues is not supported on this interface");
1874 clib_bitmap_free (hi->rss_queues);
1875 hi->rss_queues = clib_bitmap_dup (bitmap);
1880 log_err ("hw_set_rss_queues: %U", format_clib_error, error);
1884 int collect_detailed_interface_stats_flag = 0;
1887 collect_detailed_interface_stats_flag_set (void)
1889 collect_detailed_interface_stats_flag = 1;
1893 collect_detailed_interface_stats_flag_clear (void)
1895 collect_detailed_interface_stats_flag = 0;
1898 static clib_error_t *
1899 collect_detailed_interface_stats_cli (vlib_main_t * vm,
1900 unformat_input_t * input,
1901 vlib_cli_command_t * cmd)
1903 unformat_input_t _line_input, *line_input = &_line_input;
1904 clib_error_t *error = NULL;
1906 /* Get a line of input. */
1907 if (!unformat_user (input, unformat_line_input, line_input))
1908 return clib_error_return (0, "expected enable | disable");
1910 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1912 if (unformat (line_input, "enable") || unformat (line_input, "on"))
1913 collect_detailed_interface_stats_flag_set ();
1914 else if (unformat (line_input, "disable")
1915 || unformat (line_input, "off"))
1916 collect_detailed_interface_stats_flag_clear ();
1919 error = clib_error_return (0, "unknown input `%U'",
1920 format_unformat_error, line_input);
1926 unformat_free (line_input);
1930 VLIB_CLI_COMMAND (collect_detailed_interface_stats_command, static) = {
1931 .path = "interface collect detailed-stats",
1932 .short_help = "interface collect detailed-stats <enable|disable>",
1933 .function = collect_detailed_interface_stats_cli,
1937 * fd.io coding-style-patch-verification: ON
1940 * eval: (c-set-style "gnu")