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.h: 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 #ifndef included_vnet_interface_h
41 #define included_vnet_interface_h
43 #include <vnet/unix/pcap.h>
44 #include <vnet/l3_types.h>
47 struct vnet_hw_interface_t;
48 struct vnet_sw_interface_t;
49 struct ip46_address_t;
53 VNET_HW_INTERFACE_RX_MODE_UNKNOWN,
54 VNET_HW_INTERFACE_RX_MODE_POLLING,
55 VNET_HW_INTERFACE_RX_MODE_INTERRUPT,
56 VNET_HW_INTERFACE_RX_MODE_ADAPTIVE,
57 VNET_HW_INTERFACE_RX_MODE_DEFAULT,
58 VNET_HW_INTERFACE_NUM_RX_MODES,
59 } vnet_hw_interface_rx_mode;
61 /* Interface up/down callback. */
62 typedef clib_error_t *(vnet_interface_function_t)
63 (struct vnet_main_t * vnm, u32 if_index, u32 flags);
65 /* Sub-interface add/del callback. */
66 typedef clib_error_t *(vnet_subif_add_del_function_t)
67 (struct vnet_main_t * vnm, u32 if_index,
68 struct vnet_sw_interface_t * template, int is_add);
70 /* Interface set mac address callback. */
71 typedef clib_error_t *(vnet_interface_set_mac_address_function_t)
72 (struct vnet_hw_interface_t * hi, char *address);
74 /* Interface set rx mode callback. */
75 typedef clib_error_t *(vnet_interface_set_rx_mode_function_t)
76 (struct vnet_main_t * vnm, u32 if_index, u32 queue_id,
77 vnet_hw_interface_rx_mode mode);
79 typedef enum vnet_interface_function_priority_t_
81 VNET_ITF_FUNC_PRIORITY_LOW,
82 VNET_ITF_FUNC_PRIORITY_HIGH,
83 } vnet_interface_function_priority_t;
84 #define VNET_ITF_FUNC_N_PRIO ((vnet_interface_function_priority_t)VNET_ITF_FUNC_PRIORITY_HIGH+1)
86 typedef struct _vnet_interface_function_list_elt
88 struct _vnet_interface_function_list_elt *next_interface_function;
89 clib_error_t *(*fp) (struct vnet_main_t * vnm, u32 if_index, u32 flags);
90 } _vnet_interface_function_list_elt_t;
92 #define _VNET_INTERFACE_FUNCTION_DECL(f,tag) \
94 static void __vnet_interface_function_init_##tag##_##f (void) \
95 __attribute__((__constructor__)) ; \
97 static void __vnet_interface_function_init_##tag##_##f (void) \
99 vnet_main_t * vnm = vnet_get_main(); \
100 static _vnet_interface_function_list_elt_t init_function; \
101 init_function.next_interface_function = \
102 vnm->tag##_functions[VNET_ITF_FUNC_PRIORITY_LOW]; \
103 vnm->tag##_functions[VNET_ITF_FUNC_PRIORITY_LOW] = &init_function; \
104 init_function.fp = (void *) &f; \
107 #define _VNET_INTERFACE_FUNCTION_DECL_PRIO(f,tag,p) \
109 static void __vnet_interface_function_init_##tag##_##f (void) \
110 __attribute__((__constructor__)) ; \
112 static void __vnet_interface_function_init_##tag##_##f (void) \
114 vnet_main_t * vnm = vnet_get_main(); \
115 static _vnet_interface_function_list_elt_t init_function; \
116 init_function.next_interface_function = vnm->tag##_functions[p]; \
117 vnm->tag##_functions[p] = &init_function; \
118 init_function.fp = (void *) &f; \
121 #define VNET_HW_INTERFACE_ADD_DEL_FUNCTION(f) \
122 _VNET_INTERFACE_FUNCTION_DECL(f,hw_interface_add_del)
123 #define VNET_HW_INTERFACE_LINK_UP_DOWN_FUNCTION(f) \
124 _VNET_INTERFACE_FUNCTION_DECL(f,hw_interface_link_up_down)
125 #define VNET_HW_INTERFACE_LINK_UP_DOWN_FUNCTION_PRIO(f,p) \
126 _VNET_INTERFACE_FUNCTION_DECL_PRIO(f,hw_interface_link_up_down,p)
127 #define VNET_SW_INTERFACE_ADD_DEL_FUNCTION(f) \
128 _VNET_INTERFACE_FUNCTION_DECL(f,sw_interface_add_del)
129 #define VNET_SW_INTERFACE_ADMIN_UP_DOWN_FUNCTION(f) \
130 _VNET_INTERFACE_FUNCTION_DECL(f,sw_interface_admin_up_down)
131 #define VNET_SW_INTERFACE_ADMIN_UP_DOWN_FUNCTION_PRIO(f,p) \
132 _VNET_INTERFACE_FUNCTION_DECL_PRIO(f,sw_interface_admin_up_down, p)
134 /* A class of hardware interface devices. */
135 typedef struct _vnet_device_class
137 /* Index into main vector. */
140 /* Device name (e.g. "FOOBAR 1234a"). */
143 /* Function to call when hardware interface is added/deleted. */
144 vnet_interface_function_t *interface_add_del_function;
146 /* Function to bring device administratively up/down. */
147 vnet_interface_function_t *admin_up_down_function;
149 /* Function to call when sub-interface is added/deleted */
150 vnet_subif_add_del_function_t *subif_add_del_function;
152 /* Function to call interface rx mode is changed */
153 vnet_interface_set_rx_mode_function_t *rx_mode_change_function;
155 /* Redistribute flag changes/existence of this interface class. */
158 /* Transmit function. */
159 vlib_node_function_t *tx_function;
161 /* Error strings indexed by error code for this node. */
162 char **tx_function_error_strings;
164 /* Number of error codes used by this node. */
165 u32 tx_function_n_errors;
167 /* Renumber device name [only!] support, a control-plane kludge */
168 int (*name_renumber) (struct vnet_hw_interface_t * hi,
169 u32 new_dev_instance);
171 /* Format device instance as name. */
172 format_function_t *format_device_name;
174 /* Parse function for device name. */
175 unformat_function_t *unformat_device_name;
177 /* Format device verbosely for this class. */
178 format_function_t *format_device;
180 /* Trace buffer format for TX function. */
181 format_function_t *format_tx_trace;
183 /* Function to clear hardware counters for device. */
184 void (*clear_counters) (u32 dev_class_instance);
186 uword (*is_valid_class_for_interface) (struct vnet_main_t * vnm,
190 /* Called when hardware class of an interface changes. */
191 void (*hw_class_change) (struct vnet_main_t * vnm,
192 u32 hw_if_index, u32 new_hw_class_index);
194 /* Called to redirect traffic from a specific interface instance */
195 void (*rx_redirect_to_node) (struct vnet_main_t * vnm,
196 u32 hw_if_index, u32 node_index);
198 /* Link-list of all device classes set up by constructors created below */
199 struct _vnet_device_class *next_class_registration;
201 /* Splice vnet_interface_output_node into TX path */
202 u8 flatten_output_chains;
204 /* Function to set mac address. */
205 vnet_interface_set_mac_address_function_t *mac_addr_change_function;
206 } vnet_device_class_t;
208 #define VNET_DEVICE_CLASS(x,...) \
209 __VA_ARGS__ vnet_device_class_t x; \
210 static void __vnet_add_device_class_registration_##x (void) \
211 __attribute__((__constructor__)) ; \
212 static void __vnet_add_device_class_registration_##x (void) \
214 vnet_main_t * vnm = vnet_get_main(); \
215 x.next_class_registration = vnm->device_class_registrations; \
216 vnm->device_class_registrations = &x; \
218 __VA_ARGS__ vnet_device_class_t x
220 #define VLIB_DEVICE_TX_FUNCTION_CLONE_TEMPLATE(arch, fn, tgt) \
222 __attribute__ ((flatten)) \
223 __attribute__ ((target (tgt))) \
225 fn ## _ ## arch ( vlib_main_t * vm, \
226 vlib_node_runtime_t * node, \
227 vlib_frame_t * frame) \
228 { return fn (vm, node, frame); }
230 #define VLIB_DEVICE_TX_FUNCTION_MULTIARCH_CLONE(fn) \
231 foreach_march_variant(VLIB_DEVICE_TX_FUNCTION_CLONE_TEMPLATE, fn)
234 #define VLIB_MULTIARCH_CLONE_AND_SELECT_FN(fn,...)
235 #define VLIB_DEVICE_TX_FUNCTION_MULTIARCH(dev, fn)
237 #define VLIB_DEVICE_TX_FUNCTION_MULTIARCH(dev, fn) \
238 VLIB_DEVICE_TX_FUNCTION_MULTIARCH_CLONE(fn) \
239 CLIB_MULTIARCH_SELECT_FN(fn, static inline) \
240 static void __attribute__((__constructor__)) \
241 __vlib_device_tx_function_multiarch_select_##dev (void) \
242 { dev.tx_function = fn ## _multiarch_select(); }
246 * Link Type: A description of the protocol of packets on the link.
247 * On an ethernet link this maps directly into the ethertype. On a GRE tunnel
248 * it maps to the GRE-proto, etc for other lnk types.
250 typedef enum vnet_link_t_
262 } __attribute__ ((packed)) vnet_link_t;
264 #define VNET_LINKS { \
265 [VNET_LINK_ETHERNET] = "ethernet", \
266 [VNET_LINK_IP4] = "ipv4", \
267 [VNET_LINK_IP6] = "ipv6", \
268 [VNET_LINK_MPLS] = "mpls", \
269 [VNET_LINK_ARP] = "arp", \
270 [VNET_LINK_NSH] = "nsh", \
274 * @brief Number of link types. Not part of the enum so it does not have to be included in
277 #define VNET_LINK_NUM (VNET_LINK_NSH+1)
280 * @brief Convert a link to to an Ethertype
282 extern vnet_l3_packet_type_t vnet_link_to_l3_proto (vnet_link_t link);
285 * @brief Attributes assignable to a HW interface Class.
287 typedef enum vnet_hw_interface_class_flags_t_
290 * @brief a point 2 point interface
292 VNET_HW_INTERFACE_CLASS_FLAG_P2P = (1 << 0),
293 } vnet_hw_interface_class_flags_t;
295 /* Layer-2 (e.g. Ethernet) interface class. */
296 typedef struct _vnet_hw_interface_class
298 /* Index into main vector. */
301 /* Class name (e.g. "Ethernet"). */
305 vnet_hw_interface_class_flags_t flags;
307 /* Function to call when hardware interface is added/deleted. */
308 vnet_interface_function_t *interface_add_del_function;
310 /* Function to bring interface administratively up/down. */
311 vnet_interface_function_t *admin_up_down_function;
313 /* Function to call when link state changes. */
314 vnet_interface_function_t *link_up_down_function;
316 /* Function to call when link MAC changes. */
317 vnet_interface_set_mac_address_function_t *mac_addr_change_function;
319 /* Format function to display interface name. */
320 format_function_t *format_interface_name;
322 /* Format function to display interface address. */
323 format_function_t *format_address;
325 /* Format packet header for this interface class. */
326 format_function_t *format_header;
328 /* Format device verbosely for this class. */
329 format_function_t *format_device;
331 /* Parser for hardware (e.g. ethernet) address. */
332 unformat_function_t *unformat_hw_address;
334 /* Parser for packet header for e.g. rewrite string. */
335 unformat_function_t *unformat_header;
337 /* Builds a rewrite string for the interface to the destination
338 * for the payload/link type. */
339 u8 *(*build_rewrite) (struct vnet_main_t * vnm,
341 vnet_link_t link_type, const void *dst_hw_address);
343 /* Update an adjacecny added by FIB (as opposed to via the
344 * neighbour resolution protocol). */
345 void (*update_adjacency) (struct vnet_main_t * vnm,
346 u32 sw_if_index, u32 adj_index);
348 uword (*is_valid_class_for_interface) (struct vnet_main_t * vnm,
352 /* Called when hw interface class is changed and old hardware instance
353 may want to be deleted. */
354 void (*hw_class_change) (struct vnet_main_t * vnm, u32 hw_if_index,
355 u32 old_class_index, u32 new_class_index);
357 /* List of hw interface classes, built by constructors */
358 struct _vnet_hw_interface_class *next_class_registration;
360 } vnet_hw_interface_class_t;
363 * @brief Return a complete, zero-length (aka dummy) rewrite
365 extern u8 *default_build_rewrite (struct vnet_main_t *vnm,
367 vnet_link_t link_type,
368 const void *dst_hw_address);
371 * @brief Default adjacency update function
373 extern void default_update_adjacency (struct vnet_main_t *vnm,
374 u32 sw_if_index, u32 adj_index);
376 #define VNET_HW_INTERFACE_CLASS(x,...) \
377 __VA_ARGS__ vnet_hw_interface_class_t x; \
378 static void __vnet_add_hw_interface_class_registration_##x (void) \
379 __attribute__((__constructor__)) ; \
380 static void __vnet_add_hw_interface_class_registration_##x (void) \
382 vnet_main_t * vnm = vnet_get_main(); \
383 x.next_class_registration = vnm->hw_interface_class_registrations; \
384 vnm->hw_interface_class_registrations = &x; \
386 __VA_ARGS__ vnet_hw_interface_class_t x
388 /* Hardware-interface. This corresponds to a physical wire
389 that packets flow over. */
390 typedef struct vnet_hw_interface_t
392 /* Interface name. */
396 /* Hardware link state is up. */
397 #define VNET_HW_INTERFACE_FLAG_LINK_UP (1 << 0)
398 /* Hardware duplex state */
399 #define VNET_HW_INTERFACE_FLAG_DUPLEX_SHIFT 1
400 #define VNET_HW_INTERFACE_FLAG_HALF_DUPLEX (1 << 1)
401 #define VNET_HW_INTERFACE_FLAG_FULL_DUPLEX (1 << 2)
402 #define VNET_HW_INTERFACE_FLAG_DUPLEX_MASK \
403 (VNET_HW_INTERFACE_FLAG_HALF_DUPLEX | \
404 VNET_HW_INTERFACE_FLAG_FULL_DUPLEX)
406 /* Hardware link speed */
407 #define VNET_HW_INTERFACE_FLAG_SPEED_SHIFT 3
408 #define VNET_HW_INTERFACE_FLAG_SPEED_10M (1 << 3)
409 #define VNET_HW_INTERFACE_FLAG_SPEED_100M (1 << 4)
410 #define VNET_HW_INTERFACE_FLAG_SPEED_1G (1 << 5)
411 #define VNET_HW_INTERFACE_FLAG_SPEED_10G (1 << 6)
412 #define VNET_HW_INTERFACE_FLAG_SPEED_40G (1 << 7)
413 #define VNET_HW_INTERFACE_FLAG_SPEED_100G (1 << 8)
414 #define VNET_HW_INTERFACE_FLAG_SPEED_MASK \
415 (VNET_HW_INTERFACE_FLAG_SPEED_10M | \
416 VNET_HW_INTERFACE_FLAG_SPEED_100M | \
417 VNET_HW_INTERFACE_FLAG_SPEED_1G | \
418 VNET_HW_INTERFACE_FLAG_SPEED_10G | \
419 VNET_HW_INTERFACE_FLAG_SPEED_40G | \
420 VNET_HW_INTERFACE_FLAG_SPEED_100G)
422 /* l2output node flags */
423 #define VNET_HW_INTERFACE_FLAG_L2OUTPUT_SHIFT 9
424 #define VNET_HW_INTERFACE_FLAG_L2OUTPUT_MAPPED (1 << 9)
427 #define VNET_HW_INTERFACE_FLAG_SUPPORTS_INT_MODE (1 << 10)
429 /* Hardware address as vector. Zero (e.g. zero-length vector) if no
430 address for this class (e.g. PPP). */
433 /* Interface is up as far as software is concerned. */
434 /* NAME.{output,tx} nodes for this interface. */
435 u32 output_node_index, tx_node_index;
437 /* (dev_class, dev_instance) uniquely identifies hw interface. */
441 /* (hw_class, hw_instance) uniquely identifies hw interface. */
445 /* Hardware index for this hardware interface. */
448 /* Software index for this hardware interface. */
451 /* Maximum transmit rate for this interface in bits/sec. */
452 f64 max_rate_bits_per_sec;
454 /* Smallest packet size supported by this interface. */
455 u32 min_supported_packet_bytes;
457 /* Largest packet size supported by this interface. */
458 u32 max_supported_packet_bytes;
460 /* Smallest packet size for this interface. */
461 u32 min_packet_bytes;
463 /* Largest packet size for this interface. */
464 u32 max_packet_bytes;
466 /* Number of extra bytes that go on the wire.
467 Packet length on wire
468 = max (length + per_packet_overhead_bytes, min_packet_bytes). */
469 u32 per_packet_overhead_bytes;
471 /* Receive and transmit layer 3 packet size limits (MRU/MTU). */
472 u32 max_l3_packet_bytes[VLIB_N_RX_TX];
474 /* Hash table mapping sub interface id to sw_if_index. */
475 uword *sub_interface_sw_if_index_by_id;
477 /* Count of number of L2 subinterfaces */
480 /* Bonded interface info -
481 0 - not a bonded interface nor a slave
482 ~0 - slave to a bonded interface
483 others - A bonded interface with a pointer to bitmap for all slaves */
485 #define VNET_HW_INTERFACE_BOND_INFO_NONE ((uword *) 0)
486 #define VNET_HW_INTERFACE_BOND_INFO_SLAVE ((uword *) ~0)
489 u32 input_node_index;
491 /* input node cpu index by queue */
492 u32 *input_node_thread_index_by_queue;
494 /* vnet_hw_interface_rx_mode by queue */
495 u8 *rx_mode_by_queue;
496 vnet_hw_interface_rx_mode default_rx_mode;
498 /* device input device_and_queue runtime index */
499 uword *dq_runtime_index_by_queue;
501 } vnet_hw_interface_t;
503 extern vnet_device_class_t vnet_local_interface_device_class;
507 /* A hw interface. */
508 VNET_SW_INTERFACE_TYPE_HARDWARE,
510 /* A sub-interface. */
511 VNET_SW_INTERFACE_TYPE_SUB,
512 } vnet_sw_interface_type_t;
517 * Subinterface ID. A number 0-N to uniquely identify
518 * this subinterface under the main (parent?) interface
522 /* Classification data. Used to associate packet header with subinterface. */
535 u16 dot1ad:1; /* 0 = dot1q, 1=dot1ad */
538 u16 outer_vlan_id_any:1;
539 u16 inner_vlan_id_any:1;
543 } vnet_sub_interface_t;
548 VNET_FLOOD_CLASS_NORMAL,
549 VNET_FLOOD_CLASS_TUNNEL_MASTER,
550 /* Does not flood when tunnel master is in the same L2 BD */
551 VNET_FLOOD_CLASS_TUNNEL_NORMAL
552 } vnet_flood_class_t;
554 /* Software-interface. This corresponds to a Ethernet VLAN, ATM vc, a
555 tunnel, etc. Configuration (e.g. IP address) gets attached to
556 software interface. */
559 vnet_sw_interface_type_t type:16;
562 /* Interface is "up" meaning adminstratively up.
563 Up in the sense of link state being up is maintained by hardware interface. */
564 #define VNET_SW_INTERFACE_FLAG_ADMIN_UP (1 << 0)
566 /* Interface is disabled for forwarding: punt all traffic to slow-path. */
567 #define VNET_SW_INTERFACE_FLAG_PUNT (1 << 1)
569 #define VNET_SW_INTERFACE_FLAG_PROXY_ARP (1 << 2)
571 #define VNET_SW_INTERFACE_FLAG_UNNUMBERED (1 << 3)
573 #define VNET_SW_INTERFACE_FLAG_BOND_SLAVE (1 << 4)
575 /* Interface does not appear in CLI/API */
576 #define VNET_SW_INTERFACE_FLAG_HIDDEN (1 << 5)
578 /* Interface in ERROR state */
579 #define VNET_SW_INTERFACE_FLAG_ERROR (1 << 6)
581 /* Index for this interface. */
584 /* Software interface index of super-interface;
585 equal to sw_if_index if this interface is not a
589 /* this swif is unnumbered, use addresses on unnumbered_sw_if_index... */
590 u32 unnumbered_sw_if_index;
596 /* VNET_SW_INTERFACE_TYPE_HARDWARE. */
599 /* VNET_SW_INTERFACE_TYPE_SUB. */
600 vnet_sub_interface_t sub;
603 vnet_flood_class_t flood_class;
604 } vnet_sw_interface_t;
608 /* Simple counters. */
609 VNET_INTERFACE_COUNTER_DROP = 0,
610 VNET_INTERFACE_COUNTER_PUNT = 1,
611 VNET_INTERFACE_COUNTER_IP4 = 2,
612 VNET_INTERFACE_COUNTER_IP6 = 3,
613 VNET_INTERFACE_COUNTER_RX_NO_BUF = 4,
614 VNET_INTERFACE_COUNTER_RX_MISS = 5,
615 VNET_INTERFACE_COUNTER_RX_ERROR = 6,
616 VNET_INTERFACE_COUNTER_TX_ERROR = 7,
617 VNET_INTERFACE_COUNTER_MPLS = 8,
618 VNET_N_SIMPLE_INTERFACE_COUNTER = 9,
619 /* Combined counters. */
620 VNET_INTERFACE_COUNTER_RX = 0,
621 VNET_INTERFACE_COUNTER_TX = 1,
622 VNET_N_COMBINED_INTERFACE_COUNTER = 2,
623 } vnet_interface_counter_type_t;
627 u32 output_node_index;
629 } vnet_hw_interface_nodes_t;
633 /* Hardware interfaces. */
634 vnet_hw_interface_t *hw_interfaces;
636 /* Hash table mapping HW interface name to index. */
637 uword *hw_interface_by_name;
639 /* Vectors if hardware interface classes and device classes. */
640 vnet_hw_interface_class_t *hw_interface_classes;
641 vnet_device_class_t *device_classes;
643 /* Hash table mapping name to hw interface/device class. */
644 uword *hw_interface_class_by_name;
645 uword *device_class_by_name;
647 /* Software interfaces. */
648 vnet_sw_interface_t *sw_interfaces;
650 /* Hash table mapping sub intfc sw_if_index by sup sw_if_index and sub id */
651 uword *sw_if_index_by_sup_and_sub;
653 /* Software interface counters both simple and combined
654 packet and byte counters. */
655 volatile u32 *sw_if_counter_lock;
656 vlib_simple_counter_main_t *sw_if_counters;
657 vlib_combined_counter_main_t *combined_sw_if_counters;
659 vnet_hw_interface_nodes_t *deleted_hw_interface_nodes;
661 /* pcap drop tracing */
662 int drop_pcap_enable;
663 pcap_main_t pcap_main;
665 u32 pcap_sw_if_index;
666 u32 pcap_pkts_to_capture;
667 uword *pcap_drop_filter_hash;
669 /* feature_arc_index */
670 u8 output_feature_arc_index;
671 } vnet_interface_main_t;
674 vnet_interface_counter_lock (vnet_interface_main_t * im)
676 if (im->sw_if_counter_lock)
677 while (__sync_lock_test_and_set (im->sw_if_counter_lock, 1))
682 vnet_interface_counter_unlock (vnet_interface_main_t * im)
684 if (im->sw_if_counter_lock)
685 *im->sw_if_counter_lock = 0;
688 void vnet_pcap_drop_trace_filter_add_del (u32 error_index, int is_add);
690 int vnet_interface_name_renumber (u32 sw_if_index, u32 new_show_dev_instance);
692 #endif /* included_vnet_interface_h */
695 * fd.io coding-style-patch-verification: ON
698 * eval: (c-set-style "gnu")