xref: /openbmc/linux/net/sched/Kconfig (revision 9a8f3203)
1#
2# Traffic control configuration.
3#
4
5menuconfig NET_SCHED
6	bool "QoS and/or fair queueing"
7	select NET_SCH_FIFO
8	---help---
9	  When the kernel has several packets to send out over a network
10	  device, it has to decide which ones to send first, which ones to
11	  delay, and which ones to drop. This is the job of the queueing
12	  disciplines, several different algorithms for how to do this
13	  "fairly" have been proposed.
14
15	  If you say N here, you will get the standard packet scheduler, which
16	  is a FIFO (first come, first served). If you say Y here, you will be
17	  able to choose from among several alternative algorithms which can
18	  then be attached to different network devices. This is useful for
19	  example if some of your network devices are real time devices that
20	  need a certain minimum data flow rate, or if you need to limit the
21	  maximum data flow rate for traffic which matches specified criteria.
22	  This code is considered to be experimental.
23
24	  To administer these schedulers, you'll need the user-level utilities
25	  from the package iproute2+tc at
26	  <https://www.kernel.org/pub/linux/utils/net/iproute2/>.  That package
27	  also contains some documentation; for more, check out
28	  <http://www.linuxfoundation.org/collaborate/workgroups/networking/iproute2>.
29
30	  This Quality of Service (QoS) support will enable you to use
31	  Differentiated Services (diffserv) and Resource Reservation Protocol
32	  (RSVP) on your Linux router if you also say Y to the corresponding
33	  classifiers below.  Documentation and software is at
34	  <http://diffserv.sourceforge.net/>.
35
36	  If you say Y here and to "/proc file system" below, you will be able
37	  to read status information about packet schedulers from the file
38	  /proc/net/psched.
39
40	  The available schedulers are listed in the following questions; you
41	  can say Y to as many as you like. If unsure, say N now.
42
43if NET_SCHED
44
45comment "Queueing/Scheduling"
46
47config NET_SCH_CBQ
48	tristate "Class Based Queueing (CBQ)"
49	---help---
50	  Say Y here if you want to use the Class-Based Queueing (CBQ) packet
51	  scheduling algorithm. This algorithm classifies the waiting packets
52	  into a tree-like hierarchy of classes; the leaves of this tree are
53	  in turn scheduled by separate algorithms.
54
55	  See the top of <file:net/sched/sch_cbq.c> for more details.
56
57	  CBQ is a commonly used scheduler, so if you're unsure, you should
58	  say Y here. Then say Y to all the queueing algorithms below that you
59	  want to use as leaf disciplines.
60
61	  To compile this code as a module, choose M here: the
62	  module will be called sch_cbq.
63
64config NET_SCH_HTB
65	tristate "Hierarchical Token Bucket (HTB)"
66	---help---
67	  Say Y here if you want to use the Hierarchical Token Buckets (HTB)
68	  packet scheduling algorithm. See
69	  <http://luxik.cdi.cz/~devik/qos/htb/> for complete manual and
70	  in-depth articles.
71
72	  HTB is very similar to CBQ regarding its goals however is has
73	  different properties and different algorithm.
74
75	  To compile this code as a module, choose M here: the
76	  module will be called sch_htb.
77
78config NET_SCH_HFSC
79	tristate "Hierarchical Fair Service Curve (HFSC)"
80	---help---
81	  Say Y here if you want to use the Hierarchical Fair Service Curve
82	  (HFSC) packet scheduling algorithm.
83
84	  To compile this code as a module, choose M here: the
85	  module will be called sch_hfsc.
86
87config NET_SCH_ATM
88	tristate "ATM Virtual Circuits (ATM)"
89	depends on ATM
90	---help---
91	  Say Y here if you want to use the ATM pseudo-scheduler.  This
92	  provides a framework for invoking classifiers, which in turn
93	  select classes of this queuing discipline.  Each class maps
94	  the flow(s) it is handling to a given virtual circuit.
95
96	  See the top of <file:net/sched/sch_atm.c> for more details.
97
98	  To compile this code as a module, choose M here: the
99	  module will be called sch_atm.
100
101config NET_SCH_PRIO
102	tristate "Multi Band Priority Queueing (PRIO)"
103	---help---
104	  Say Y here if you want to use an n-band priority queue packet
105	  scheduler.
106
107	  To compile this code as a module, choose M here: the
108	  module will be called sch_prio.
109
110config NET_SCH_MULTIQ
111	tristate "Hardware Multiqueue-aware Multi Band Queuing (MULTIQ)"
112	---help---
113	  Say Y here if you want to use an n-band queue packet scheduler
114	  to support devices that have multiple hardware transmit queues.
115
116	  To compile this code as a module, choose M here: the
117	  module will be called sch_multiq.
118
119config NET_SCH_RED
120	tristate "Random Early Detection (RED)"
121	---help---
122	  Say Y here if you want to use the Random Early Detection (RED)
123	  packet scheduling algorithm.
124
125	  See the top of <file:net/sched/sch_red.c> for more details.
126
127	  To compile this code as a module, choose M here: the
128	  module will be called sch_red.
129
130config NET_SCH_SFB
131	tristate "Stochastic Fair Blue (SFB)"
132	---help---
133	  Say Y here if you want to use the Stochastic Fair Blue (SFB)
134	  packet scheduling algorithm.
135
136	  See the top of <file:net/sched/sch_sfb.c> for more details.
137
138	  To compile this code as a module, choose M here: the
139	  module will be called sch_sfb.
140
141config NET_SCH_SFQ
142	tristate "Stochastic Fairness Queueing (SFQ)"
143	---help---
144	  Say Y here if you want to use the Stochastic Fairness Queueing (SFQ)
145	  packet scheduling algorithm.
146
147	  See the top of <file:net/sched/sch_sfq.c> for more details.
148
149	  To compile this code as a module, choose M here: the
150	  module will be called sch_sfq.
151
152config NET_SCH_TEQL
153	tristate "True Link Equalizer (TEQL)"
154	---help---
155	  Say Y here if you want to use the True Link Equalizer (TLE) packet
156	  scheduling algorithm. This queueing discipline allows the combination
157	  of several physical devices into one virtual device.
158
159	  See the top of <file:net/sched/sch_teql.c> for more details.
160
161	  To compile this code as a module, choose M here: the
162	  module will be called sch_teql.
163
164config NET_SCH_TBF
165	tristate "Token Bucket Filter (TBF)"
166	---help---
167	  Say Y here if you want to use the Token Bucket Filter (TBF) packet
168	  scheduling algorithm.
169
170	  See the top of <file:net/sched/sch_tbf.c> for more details.
171
172	  To compile this code as a module, choose M here: the
173	  module will be called sch_tbf.
174
175config NET_SCH_CBS
176	tristate "Credit Based Shaper (CBS)"
177	---help---
178	  Say Y here if you want to use the Credit Based Shaper (CBS) packet
179	  scheduling algorithm.
180
181	  See the top of <file:net/sched/sch_cbs.c> for more details.
182
183	  To compile this code as a module, choose M here: the
184	  module will be called sch_cbs.
185
186config NET_SCH_ETF
187	tristate "Earliest TxTime First (ETF)"
188	help
189	  Say Y here if you want to use the Earliest TxTime First (ETF) packet
190	  scheduling algorithm.
191
192	  See the top of <file:net/sched/sch_etf.c> for more details.
193
194	  To compile this code as a module, choose M here: the
195	  module will be called sch_etf.
196
197config NET_SCH_TAPRIO
198	tristate "Time Aware Priority (taprio) Scheduler"
199	help
200	  Say Y here if you want to use the Time Aware Priority (taprio) packet
201	  scheduling algorithm.
202
203	  See the top of <file:net/sched/sch_taprio.c> for more details.
204
205	  To compile this code as a module, choose M here: the
206	  module will be called sch_taprio.
207
208config NET_SCH_GRED
209	tristate "Generic Random Early Detection (GRED)"
210	---help---
211	  Say Y here if you want to use the Generic Random Early Detection
212	  (GRED) packet scheduling algorithm for some of your network devices
213	  (see the top of <file:net/sched/sch_red.c> for details and
214	  references about the algorithm).
215
216	  To compile this code as a module, choose M here: the
217	  module will be called sch_gred.
218
219config NET_SCH_DSMARK
220	tristate "Differentiated Services marker (DSMARK)"
221	---help---
222	  Say Y if you want to schedule packets according to the
223	  Differentiated Services architecture proposed in RFC 2475.
224	  Technical information on this method, with pointers to associated
225	  RFCs, is available at <http://www.gta.ufrj.br/diffserv/>.
226
227	  To compile this code as a module, choose M here: the
228	  module will be called sch_dsmark.
229
230config NET_SCH_NETEM
231	tristate "Network emulator (NETEM)"
232	---help---
233	  Say Y if you want to emulate network delay, loss, and packet
234	  re-ordering. This is often useful to simulate networks when
235	  testing applications or protocols.
236
237	  To compile this driver as a module, choose M here: the module
238	  will be called sch_netem.
239
240	  If unsure, say N.
241
242config NET_SCH_DRR
243	tristate "Deficit Round Robin scheduler (DRR)"
244	help
245	  Say Y here if you want to use the Deficit Round Robin (DRR) packet
246	  scheduling algorithm.
247
248	  To compile this driver as a module, choose M here: the module
249	  will be called sch_drr.
250
251	  If unsure, say N.
252
253config NET_SCH_MQPRIO
254	tristate "Multi-queue priority scheduler (MQPRIO)"
255	help
256	  Say Y here if you want to use the Multi-queue Priority scheduler.
257	  This scheduler allows QOS to be offloaded on NICs that have support
258	  for offloading QOS schedulers.
259
260	  To compile this driver as a module, choose M here: the module will
261	  be called sch_mqprio.
262
263	  If unsure, say N.
264
265config NET_SCH_SKBPRIO
266	tristate "SKB priority queue scheduler (SKBPRIO)"
267	help
268	  Say Y here if you want to use the SKB priority queue
269	  scheduler. This schedules packets according to skb->priority,
270	  which is useful for request packets in DoS mitigation systems such
271	  as Gatekeeper.
272
273	  To compile this driver as a module, choose M here: the module will
274	  be called sch_skbprio.
275
276	  If unsure, say N.
277
278config NET_SCH_CHOKE
279	tristate "CHOose and Keep responsive flow scheduler (CHOKE)"
280	help
281	  Say Y here if you want to use the CHOKe packet scheduler (CHOose
282	  and Keep for responsive flows, CHOose and Kill for unresponsive
283	  flows). This is a variation of RED which trys to penalize flows
284	  that monopolize the queue.
285
286	  To compile this code as a module, choose M here: the
287	  module will be called sch_choke.
288
289config NET_SCH_QFQ
290	tristate "Quick Fair Queueing scheduler (QFQ)"
291	help
292	  Say Y here if you want to use the Quick Fair Queueing Scheduler (QFQ)
293	  packet scheduling algorithm.
294
295	  To compile this driver as a module, choose M here: the module
296	  will be called sch_qfq.
297
298	  If unsure, say N.
299
300config NET_SCH_CODEL
301	tristate "Controlled Delay AQM (CODEL)"
302	help
303	  Say Y here if you want to use the Controlled Delay (CODEL)
304	  packet scheduling algorithm.
305
306	  To compile this driver as a module, choose M here: the module
307	  will be called sch_codel.
308
309	  If unsure, say N.
310
311config NET_SCH_FQ_CODEL
312	tristate "Fair Queue Controlled Delay AQM (FQ_CODEL)"
313	help
314	  Say Y here if you want to use the FQ Controlled Delay (FQ_CODEL)
315	  packet scheduling algorithm.
316
317	  To compile this driver as a module, choose M here: the module
318	  will be called sch_fq_codel.
319
320	  If unsure, say N.
321
322config NET_SCH_CAKE
323	tristate "Common Applications Kept Enhanced (CAKE)"
324	help
325	  Say Y here if you want to use the Common Applications Kept Enhanced
326          (CAKE) queue management algorithm.
327
328	  To compile this driver as a module, choose M here: the module
329	  will be called sch_cake.
330
331	  If unsure, say N.
332
333config NET_SCH_FQ
334	tristate "Fair Queue"
335	help
336	  Say Y here if you want to use the FQ packet scheduling algorithm.
337
338	  FQ does flow separation, and is able to respect pacing requirements
339	  set by TCP stack into sk->sk_pacing_rate (for localy generated
340	  traffic)
341
342	  To compile this driver as a module, choose M here: the module
343	  will be called sch_fq.
344
345	  If unsure, say N.
346
347config NET_SCH_HHF
348	tristate "Heavy-Hitter Filter (HHF)"
349	help
350	  Say Y here if you want to use the Heavy-Hitter Filter (HHF)
351	  packet scheduling algorithm.
352
353	  To compile this driver as a module, choose M here: the module
354	  will be called sch_hhf.
355
356config NET_SCH_PIE
357	tristate "Proportional Integral controller Enhanced (PIE) scheduler"
358	help
359	  Say Y here if you want to use the Proportional Integral controller
360	  Enhanced scheduler packet scheduling algorithm.
361	  For more information, please see https://tools.ietf.org/html/rfc8033
362
363	  To compile this driver as a module, choose M here: the module
364	  will be called sch_pie.
365
366	  If unsure, say N.
367
368config NET_SCH_INGRESS
369	tristate "Ingress/classifier-action Qdisc"
370	depends on NET_CLS_ACT
371	select NET_INGRESS
372	select NET_EGRESS
373	---help---
374	  Say Y here if you want to use classifiers for incoming and/or outgoing
375	  packets. This qdisc doesn't do anything else besides running classifiers,
376	  which can also have actions attached to them. In case of outgoing packets,
377	  classifiers that this qdisc holds are executed in the transmit path
378	  before real enqueuing to an egress qdisc happens.
379
380	  If unsure, say Y.
381
382	  To compile this code as a module, choose M here: the module will be
383	  called sch_ingress with alias of sch_clsact.
384
385config NET_SCH_PLUG
386	tristate "Plug network traffic until release (PLUG)"
387	---help---
388
389	  This queuing discipline allows userspace to plug/unplug a network
390	  output queue, using the netlink interface.  When it receives an
391	  enqueue command it inserts a plug into the outbound queue that
392	  causes following packets to enqueue until a dequeue command arrives
393	  over netlink, causing the plug to be removed and resuming the normal
394	  packet flow.
395
396	  This module also provides a generic "network output buffering"
397	  functionality (aka output commit), wherein upon arrival of a dequeue
398	  command, only packets up to the first plug are released for delivery.
399	  The Remus HA project uses this module to enable speculative execution
400	  of virtual machines by allowing the generated network output to be rolled
401	  back if needed.
402
403	  For more information, please refer to <http://wiki.xenproject.org/wiki/Remus>
404
405	  Say Y here if you are using this kernel for Xen dom0 and
406	  want to protect Xen guests with Remus.
407
408	  To compile this code as a module, choose M here: the
409	  module will be called sch_plug.
410
411menuconfig NET_SCH_DEFAULT
412	bool "Allow override default queue discipline"
413	---help---
414	  Support for selection of default queuing discipline.
415
416	  Nearly all users can safely say no here, and the default
417	  of pfifo_fast will be used. Many distributions already set
418	  the default value via /proc/sys/net/core/default_qdisc.
419
420	  If unsure, say N.
421
422if NET_SCH_DEFAULT
423
424choice
425	prompt "Default queuing discipline"
426	default DEFAULT_PFIFO_FAST
427	help
428	  Select the queueing discipline that will be used by default
429	  for all network devices.
430
431	config DEFAULT_FQ
432		bool "Fair Queue" if NET_SCH_FQ
433
434	config DEFAULT_CODEL
435		bool "Controlled Delay" if NET_SCH_CODEL
436
437	config DEFAULT_FQ_CODEL
438		bool "Fair Queue Controlled Delay" if NET_SCH_FQ_CODEL
439
440	config DEFAULT_SFQ
441		bool "Stochastic Fair Queue" if NET_SCH_SFQ
442
443	config DEFAULT_PFIFO_FAST
444		bool "Priority FIFO Fast"
445endchoice
446
447config DEFAULT_NET_SCH
448	string
449	default "pfifo_fast" if DEFAULT_PFIFO_FAST
450	default "fq" if DEFAULT_FQ
451	default "fq_codel" if DEFAULT_FQ_CODEL
452	default "sfq" if DEFAULT_SFQ
453	default "pfifo_fast"
454endif
455
456comment "Classification"
457
458config NET_CLS
459	bool
460
461config NET_CLS_BASIC
462	tristate "Elementary classification (BASIC)"
463	select NET_CLS
464	---help---
465	  Say Y here if you want to be able to classify packets using
466	  only extended matches and actions.
467
468	  To compile this code as a module, choose M here: the
469	  module will be called cls_basic.
470
471config NET_CLS_TCINDEX
472	tristate "Traffic-Control Index (TCINDEX)"
473	select NET_CLS
474	---help---
475	  Say Y here if you want to be able to classify packets based on
476	  traffic control indices. You will want this feature if you want
477	  to implement Differentiated Services together with DSMARK.
478
479	  To compile this code as a module, choose M here: the
480	  module will be called cls_tcindex.
481
482config NET_CLS_ROUTE4
483	tristate "Routing decision (ROUTE)"
484	depends on INET
485	select IP_ROUTE_CLASSID
486	select NET_CLS
487	---help---
488	  If you say Y here, you will be able to classify packets
489	  according to the route table entry they matched.
490
491	  To compile this code as a module, choose M here: the
492	  module will be called cls_route.
493
494config NET_CLS_FW
495	tristate "Netfilter mark (FW)"
496	select NET_CLS
497	---help---
498	  If you say Y here, you will be able to classify packets
499	  according to netfilter/firewall marks.
500
501	  To compile this code as a module, choose M here: the
502	  module will be called cls_fw.
503
504config NET_CLS_U32
505	tristate "Universal 32bit comparisons w/ hashing (U32)"
506	select NET_CLS
507	---help---
508	  Say Y here to be able to classify packets using a universal
509	  32bit pieces based comparison scheme.
510
511	  To compile this code as a module, choose M here: the
512	  module will be called cls_u32.
513
514config CLS_U32_PERF
515	bool "Performance counters support"
516	depends on NET_CLS_U32
517	---help---
518	  Say Y here to make u32 gather additional statistics useful for
519	  fine tuning u32 classifiers.
520
521config CLS_U32_MARK
522	bool "Netfilter marks support"
523	depends on NET_CLS_U32
524	---help---
525	  Say Y here to be able to use netfilter marks as u32 key.
526
527config NET_CLS_RSVP
528	tristate "IPv4 Resource Reservation Protocol (RSVP)"
529	select NET_CLS
530	---help---
531	  The Resource Reservation Protocol (RSVP) permits end systems to
532	  request a minimum and maximum data flow rate for a connection; this
533	  is important for real time data such as streaming sound or video.
534
535	  Say Y here if you want to be able to classify outgoing packets based
536	  on their RSVP requests.
537
538	  To compile this code as a module, choose M here: the
539	  module will be called cls_rsvp.
540
541config NET_CLS_RSVP6
542	tristate "IPv6 Resource Reservation Protocol (RSVP6)"
543	select NET_CLS
544	---help---
545	  The Resource Reservation Protocol (RSVP) permits end systems to
546	  request a minimum and maximum data flow rate for a connection; this
547	  is important for real time data such as streaming sound or video.
548
549	  Say Y here if you want to be able to classify outgoing packets based
550	  on their RSVP requests and you are using the IPv6 protocol.
551
552	  To compile this code as a module, choose M here: the
553	  module will be called cls_rsvp6.
554
555config NET_CLS_FLOW
556	tristate "Flow classifier"
557	select NET_CLS
558	---help---
559	  If you say Y here, you will be able to classify packets based on
560	  a configurable combination of packet keys. This is mostly useful
561	  in combination with SFQ.
562
563	  To compile this code as a module, choose M here: the
564	  module will be called cls_flow.
565
566config NET_CLS_CGROUP
567	tristate "Control Group Classifier"
568	select NET_CLS
569	select CGROUP_NET_CLASSID
570	depends on CGROUPS
571	---help---
572	  Say Y here if you want to classify packets based on the control
573	  cgroup of their process.
574
575	  To compile this code as a module, choose M here: the
576	  module will be called cls_cgroup.
577
578config NET_CLS_BPF
579	tristate "BPF-based classifier"
580	select NET_CLS
581	---help---
582	  If you say Y here, you will be able to classify packets based on
583	  programmable BPF (JIT'ed) filters as an alternative to ematches.
584
585	  To compile this code as a module, choose M here: the module will
586	  be called cls_bpf.
587
588config NET_CLS_FLOWER
589	tristate "Flower classifier"
590	select NET_CLS
591	---help---
592	  If you say Y here, you will be able to classify packets based on
593	  a configurable combination of packet keys and masks.
594
595	  To compile this code as a module, choose M here: the module will
596	  be called cls_flower.
597
598config NET_CLS_MATCHALL
599	tristate "Match-all classifier"
600	select NET_CLS
601	---help---
602	  If you say Y here, you will be able to classify packets based on
603	  nothing. Every packet will match.
604
605	  To compile this code as a module, choose M here: the module will
606	  be called cls_matchall.
607
608config NET_EMATCH
609	bool "Extended Matches"
610	select NET_CLS
611	---help---
612	  Say Y here if you want to use extended matches on top of classifiers
613	  and select the extended matches below.
614
615	  Extended matches are small classification helpers not worth writing
616	  a separate classifier for.
617
618	  A recent version of the iproute2 package is required to use
619	  extended matches.
620
621config NET_EMATCH_STACK
622	int "Stack size"
623	depends on NET_EMATCH
624	default "32"
625	---help---
626	  Size of the local stack variable used while evaluating the tree of
627	  ematches. Limits the depth of the tree, i.e. the number of
628	  encapsulated precedences. Every level requires 4 bytes of additional
629	  stack space.
630
631config NET_EMATCH_CMP
632	tristate "Simple packet data comparison"
633	depends on NET_EMATCH
634	---help---
635	  Say Y here if you want to be able to classify packets based on
636	  simple packet data comparisons for 8, 16, and 32bit values.
637
638	  To compile this code as a module, choose M here: the
639	  module will be called em_cmp.
640
641config NET_EMATCH_NBYTE
642	tristate "Multi byte comparison"
643	depends on NET_EMATCH
644	---help---
645	  Say Y here if you want to be able to classify packets based on
646	  multiple byte comparisons mainly useful for IPv6 address comparisons.
647
648	  To compile this code as a module, choose M here: the
649	  module will be called em_nbyte.
650
651config NET_EMATCH_U32
652	tristate "U32 key"
653	depends on NET_EMATCH
654	---help---
655	  Say Y here if you want to be able to classify packets using
656	  the famous u32 key in combination with logic relations.
657
658	  To compile this code as a module, choose M here: the
659	  module will be called em_u32.
660
661config NET_EMATCH_META
662	tristate "Metadata"
663	depends on NET_EMATCH
664	---help---
665	  Say Y here if you want to be able to classify packets based on
666	  metadata such as load average, netfilter attributes, socket
667	  attributes and routing decisions.
668
669	  To compile this code as a module, choose M here: the
670	  module will be called em_meta.
671
672config NET_EMATCH_TEXT
673	tristate "Textsearch"
674	depends on NET_EMATCH
675	select TEXTSEARCH
676	select TEXTSEARCH_KMP
677	select TEXTSEARCH_BM
678	select TEXTSEARCH_FSM
679	---help---
680	  Say Y here if you want to be able to classify packets based on
681	  textsearch comparisons.
682
683	  To compile this code as a module, choose M here: the
684	  module will be called em_text.
685
686config NET_EMATCH_CANID
687	tristate "CAN Identifier"
688	depends on NET_EMATCH && (CAN=y || CAN=m)
689	---help---
690	  Say Y here if you want to be able to classify CAN frames based
691	  on CAN Identifier.
692
693	  To compile this code as a module, choose M here: the
694	  module will be called em_canid.
695
696config NET_EMATCH_IPSET
697	tristate "IPset"
698	depends on NET_EMATCH && IP_SET
699	---help---
700	  Say Y here if you want to be able to classify packets based on
701	  ipset membership.
702
703	  To compile this code as a module, choose M here: the
704	  module will be called em_ipset.
705
706config NET_EMATCH_IPT
707	tristate "IPtables Matches"
708	depends on NET_EMATCH && NETFILTER && NETFILTER_XTABLES
709	---help---
710	  Say Y here to be able to classify packets based on iptables
711	  matches.
712	  Current supported match is "policy" which allows packet classification
713	  based on IPsec policy that was used during decapsulation
714
715	  To compile this code as a module, choose M here: the
716	  module will be called em_ipt.
717
718config NET_CLS_ACT
719	bool "Actions"
720	select NET_CLS
721	---help---
722	  Say Y here if you want to use traffic control actions. Actions
723	  get attached to classifiers and are invoked after a successful
724	  classification. They are used to overwrite the classification
725	  result, instantly drop or redirect packets, etc.
726
727	  A recent version of the iproute2 package is required to use
728	  extended matches.
729
730config NET_ACT_POLICE
731	tristate "Traffic Policing"
732        depends on NET_CLS_ACT
733        ---help---
734	  Say Y here if you want to do traffic policing, i.e. strict
735	  bandwidth limiting. This action replaces the existing policing
736	  module.
737
738	  To compile this code as a module, choose M here: the
739	  module will be called act_police.
740
741config NET_ACT_GACT
742        tristate "Generic actions"
743        depends on NET_CLS_ACT
744        ---help---
745	  Say Y here to take generic actions such as dropping and
746	  accepting packets.
747
748	  To compile this code as a module, choose M here: the
749	  module will be called act_gact.
750
751config GACT_PROB
752        bool "Probability support"
753        depends on NET_ACT_GACT
754        ---help---
755	  Say Y here to use the generic action randomly or deterministically.
756
757config NET_ACT_MIRRED
758        tristate "Redirecting and Mirroring"
759        depends on NET_CLS_ACT
760        ---help---
761	  Say Y here to allow packets to be mirrored or redirected to
762	  other devices.
763
764	  To compile this code as a module, choose M here: the
765	  module will be called act_mirred.
766
767config NET_ACT_SAMPLE
768        tristate "Traffic Sampling"
769        depends on NET_CLS_ACT
770        select PSAMPLE
771        ---help---
772	  Say Y here to allow packet sampling tc action. The packet sample
773	  action consists of statistically choosing packets and sampling
774	  them using the psample module.
775
776	  To compile this code as a module, choose M here: the
777	  module will be called act_sample.
778
779config NET_ACT_IPT
780        tristate "IPtables targets"
781        depends on NET_CLS_ACT && NETFILTER && IP_NF_IPTABLES
782        ---help---
783	  Say Y here to be able to invoke iptables targets after successful
784	  classification.
785
786	  To compile this code as a module, choose M here: the
787	  module will be called act_ipt.
788
789config NET_ACT_NAT
790        tristate "Stateless NAT"
791        depends on NET_CLS_ACT
792        ---help---
793	  Say Y here to do stateless NAT on IPv4 packets.  You should use
794	  netfilter for NAT unless you know what you are doing.
795
796	  To compile this code as a module, choose M here: the
797	  module will be called act_nat.
798
799config NET_ACT_PEDIT
800        tristate "Packet Editing"
801        depends on NET_CLS_ACT
802        ---help---
803	  Say Y here if you want to mangle the content of packets.
804
805	  To compile this code as a module, choose M here: the
806	  module will be called act_pedit.
807
808config NET_ACT_SIMP
809        tristate "Simple Example (Debug)"
810        depends on NET_CLS_ACT
811        ---help---
812	  Say Y here to add a simple action for demonstration purposes.
813	  It is meant as an example and for debugging purposes. It will
814	  print a configured policy string followed by the packet count
815	  to the console for every packet that passes by.
816
817	  If unsure, say N.
818
819	  To compile this code as a module, choose M here: the
820	  module will be called act_simple.
821
822config NET_ACT_SKBEDIT
823        tristate "SKB Editing"
824        depends on NET_CLS_ACT
825        ---help---
826	  Say Y here to change skb priority or queue_mapping settings.
827
828	  If unsure, say N.
829
830	  To compile this code as a module, choose M here: the
831	  module will be called act_skbedit.
832
833config NET_ACT_CSUM
834        tristate "Checksum Updating"
835        depends on NET_CLS_ACT && INET
836        select LIBCRC32C
837        ---help---
838	  Say Y here to update some common checksum after some direct
839	  packet alterations.
840
841	  To compile this code as a module, choose M here: the
842	  module will be called act_csum.
843
844config NET_ACT_VLAN
845        tristate "Vlan manipulation"
846        depends on NET_CLS_ACT
847        ---help---
848	  Say Y here to push or pop vlan headers.
849
850	  If unsure, say N.
851
852	  To compile this code as a module, choose M here: the
853	  module will be called act_vlan.
854
855config NET_ACT_BPF
856        tristate "BPF based action"
857        depends on NET_CLS_ACT
858        ---help---
859	  Say Y here to execute BPF code on packets. The BPF code will decide
860	  if the packet should be dropped or not.
861
862	  If unsure, say N.
863
864	  To compile this code as a module, choose M here: the
865	  module will be called act_bpf.
866
867config NET_ACT_CONNMARK
868        tristate "Netfilter Connection Mark Retriever"
869        depends on NET_CLS_ACT && NETFILTER && IP_NF_IPTABLES
870        depends on NF_CONNTRACK && NF_CONNTRACK_MARK
871        ---help---
872	  Say Y here to allow retrieving of conn mark
873
874	  If unsure, say N.
875
876	  To compile this code as a module, choose M here: the
877	  module will be called act_connmark.
878
879config NET_ACT_SKBMOD
880        tristate "skb data modification action"
881        depends on NET_CLS_ACT
882        ---help---
883         Say Y here to allow modification of skb data
884
885         If unsure, say N.
886
887         To compile this code as a module, choose M here: the
888         module will be called act_skbmod.
889
890config NET_ACT_IFE
891        tristate "Inter-FE action based on IETF ForCES InterFE LFB"
892        depends on NET_CLS_ACT
893        select NET_IFE
894        ---help---
895	  Say Y here to allow for sourcing and terminating metadata
896	  For details refer to netdev01 paper:
897	  "Distributing Linux Traffic Control Classifier-Action Subsystem"
898	   Authors: Jamal Hadi Salim and Damascene M. Joachimpillai
899
900	  To compile this code as a module, choose M here: the
901	  module will be called act_ife.
902
903config NET_ACT_TUNNEL_KEY
904        tristate "IP tunnel metadata manipulation"
905        depends on NET_CLS_ACT
906        ---help---
907	  Say Y here to set/release ip tunnel metadata.
908
909	  If unsure, say N.
910
911	  To compile this code as a module, choose M here: the
912	  module will be called act_tunnel_key.
913
914config NET_IFE_SKBMARK
915        tristate "Support to encoding decoding skb mark on IFE action"
916        depends on NET_ACT_IFE
917
918config NET_IFE_SKBPRIO
919        tristate "Support to encoding decoding skb prio on IFE action"
920        depends on NET_ACT_IFE
921
922config NET_IFE_SKBTCINDEX
923        tristate "Support to encoding decoding skb tcindex on IFE action"
924        depends on NET_ACT_IFE
925
926config NET_CLS_IND
927	bool "Incoming device classification"
928	depends on NET_CLS_U32 || NET_CLS_FW
929	---help---
930	  Say Y here to extend the u32 and fw classifier to support
931	  classification based on the incoming device. This option is
932	  likely to disappear in favour of the metadata ematch.
933
934endif # NET_SCHED
935
936config NET_SCH_FIFO
937	bool
938