xref: /linux/net/sched/Kconfig (revision 785151f50ddacac06c7a3c5f3d31642794507fdf)
1# SPDX-License-Identifier: GPL-2.0-only
2#
3# Traffic control configuration.
4#
5
6menuconfig NET_SCHED
7	bool "QoS and/or fair queueing"
8	select NET_SCH_FIFO
9	help
10	  When the kernel has several packets to send out over a network
11	  device, it has to decide which ones to send first, which ones to
12	  delay, and which ones to drop. This is the job of the queueing
13	  disciplines, several different algorithms for how to do this
14	  "fairly" have been proposed.
15
16	  If you say N here, you will get the standard packet scheduler, which
17	  is a FIFO (first come, first served). If you say Y here, you will be
18	  able to choose from among several alternative algorithms which can
19	  then be attached to different network devices. This is useful for
20	  example if some of your network devices are real time devices that
21	  need a certain minimum data flow rate, or if you need to limit the
22	  maximum data flow rate for traffic which matches specified criteria.
23	  This code is considered to be experimental.
24
25	  To administer these schedulers, you'll need the user-level utilities
26	  from the package iproute2+tc at
27	  <https://www.kernel.org/pub/linux/utils/net/iproute2/>.  That package
28	  also contains some documentation; for more, check out
29	  <http://www.linuxfoundation.org/collaborate/workgroups/networking/iproute2>.
30
31	  This Quality of Service (QoS) support will enable you to use
32	  Differentiated Services (diffserv) and Resource Reservation Protocol
33	  (RSVP) on your Linux router if you also say Y to the corresponding
34	  classifiers below.  Documentation and software is at
35	  <http://diffserv.sourceforge.net/>.
36
37	  If you say Y here and to "/proc file system" below, you will be able
38	  to read status information about packet schedulers from the file
39	  /proc/net/psched.
40
41	  The available schedulers are listed in the following questions; you
42	  can say Y to as many as you like. If unsure, say N now.
43
44if NET_SCHED
45
46comment "Queueing/Scheduling"
47
48config NET_SCH_HTB
49	tristate "Hierarchical Token Bucket (HTB)"
50	help
51	  Say Y here if you want to use the Hierarchical Token Buckets (HTB)
52	  packet scheduling algorithm. See
53	  <http://luxik.cdi.cz/~devik/qos/htb/> for complete manual and
54	  in-depth articles.
55
56	  HTB is very similar to CBQ regarding its goals however is has
57	  different properties and different algorithm.
58
59	  To compile this code as a module, choose M here: the
60	  module will be called sch_htb.
61
62config NET_SCH_HFSC
63	tristate "Hierarchical Fair Service Curve (HFSC)"
64	help
65	  Say Y here if you want to use the Hierarchical Fair Service Curve
66	  (HFSC) packet scheduling algorithm.
67
68	  To compile this code as a module, choose M here: the
69	  module will be called sch_hfsc.
70
71config NET_SCH_PRIO
72	tristate "Multi Band Priority Queueing (PRIO)"
73	help
74	  Say Y here if you want to use an n-band priority queue packet
75	  scheduler.
76
77	  To compile this code as a module, choose M here: the
78	  module will be called sch_prio.
79
80config NET_SCH_MULTIQ
81	tristate "Hardware Multiqueue-aware Multi Band Queuing (MULTIQ)"
82	help
83	  Say Y here if you want to use an n-band queue packet scheduler
84	  to support devices that have multiple hardware transmit queues.
85
86	  To compile this code as a module, choose M here: the
87	  module will be called sch_multiq.
88
89config NET_SCH_RED
90	tristate "Random Early Detection (RED)"
91	help
92	  Say Y here if you want to use the Random Early Detection (RED)
93	  packet scheduling algorithm.
94
95	  See the top of <file:net/sched/sch_red.c> for more details.
96
97	  To compile this code as a module, choose M here: the
98	  module will be called sch_red.
99
100config NET_SCH_SFB
101	tristate "Stochastic Fair Blue (SFB)"
102	help
103	  Say Y here if you want to use the Stochastic Fair Blue (SFB)
104	  packet scheduling algorithm.
105
106	  See the top of <file:net/sched/sch_sfb.c> for more details.
107
108	  To compile this code as a module, choose M here: the
109	  module will be called sch_sfb.
110
111config NET_SCH_SFQ
112	tristate "Stochastic Fairness Queueing (SFQ)"
113	help
114	  Say Y here if you want to use the Stochastic Fairness Queueing (SFQ)
115	  packet scheduling algorithm.
116
117	  See the top of <file:net/sched/sch_sfq.c> for more details.
118
119	  To compile this code as a module, choose M here: the
120	  module will be called sch_sfq.
121
122config NET_SCH_TEQL
123	tristate "True Link Equalizer (TEQL)"
124	help
125	  Say Y here if you want to use the True Link Equalizer (TLE) packet
126	  scheduling algorithm. This queueing discipline allows the combination
127	  of several physical devices into one virtual device.
128
129	  See the top of <file:net/sched/sch_teql.c> for more details.
130
131	  To compile this code as a module, choose M here: the
132	  module will be called sch_teql.
133
134config NET_SCH_TBF
135	tristate "Token Bucket Filter (TBF)"
136	help
137	  Say Y here if you want to use the Token Bucket Filter (TBF) packet
138	  scheduling algorithm.
139
140	  See the top of <file:net/sched/sch_tbf.c> for more details.
141
142	  To compile this code as a module, choose M here: the
143	  module will be called sch_tbf.
144
145config NET_SCH_CBS
146	tristate "Credit Based Shaper (CBS)"
147	help
148	  Say Y here if you want to use the Credit Based Shaper (CBS) packet
149	  scheduling algorithm.
150
151	  See the top of <file:net/sched/sch_cbs.c> for more details.
152
153	  To compile this code as a module, choose M here: the
154	  module will be called sch_cbs.
155
156config NET_SCH_ETF
157	tristate "Earliest TxTime First (ETF)"
158	help
159	  Say Y here if you want to use the Earliest TxTime First (ETF) packet
160	  scheduling algorithm.
161
162	  See the top of <file:net/sched/sch_etf.c> for more details.
163
164	  To compile this code as a module, choose M here: the
165	  module will be called sch_etf.
166
167config NET_SCH_MQPRIO_LIB
168	tristate
169	help
170	  Common library for manipulating mqprio queue configurations.
171
172config NET_SCH_TAPRIO
173	tristate "Time Aware Priority (taprio) Scheduler"
174	select NET_SCH_MQPRIO_LIB
175	help
176	  Say Y here if you want to use the Time Aware Priority (taprio) packet
177	  scheduling algorithm.
178
179	  See the top of <file:net/sched/sch_taprio.c> for more details.
180
181	  To compile this code as a module, choose M here: the
182	  module will be called sch_taprio.
183
184config NET_SCH_GRED
185	tristate "Generic Random Early Detection (GRED)"
186	help
187	  Say Y here if you want to use the Generic Random Early Detection
188	  (GRED) packet scheduling algorithm for some of your network devices
189	  (see the top of <file:net/sched/sch_red.c> for details and
190	  references about the algorithm).
191
192	  To compile this code as a module, choose M here: the
193	  module will be called sch_gred.
194
195config NET_SCH_NETEM
196	tristate "Network emulator (NETEM)"
197	help
198	  Say Y if you want to emulate network delay, loss, and packet
199	  re-ordering. This is often useful to simulate networks when
200	  testing applications or protocols.
201
202	  To compile this driver as a module, choose M here: the module
203	  will be called sch_netem.
204
205	  If unsure, say N.
206
207config NET_SCH_DRR
208	tristate "Deficit Round Robin scheduler (DRR)"
209	help
210	  Say Y here if you want to use the Deficit Round Robin (DRR) packet
211	  scheduling algorithm.
212
213	  To compile this driver as a module, choose M here: the module
214	  will be called sch_drr.
215
216	  If unsure, say N.
217
218config NET_SCH_MQPRIO
219	tristate "Multi-queue priority scheduler (MQPRIO)"
220	select NET_SCH_MQPRIO_LIB
221	help
222	  Say Y here if you want to use the Multi-queue Priority scheduler.
223	  This scheduler allows QOS to be offloaded on NICs that have support
224	  for offloading QOS schedulers.
225
226	  To compile this driver as a module, choose M here: the module will
227	  be called sch_mqprio.
228
229	  If unsure, say N.
230
231config NET_SCH_SKBPRIO
232	tristate "SKB priority queue scheduler (SKBPRIO)"
233	help
234	  Say Y here if you want to use the SKB priority queue
235	  scheduler. This schedules packets according to skb->priority,
236	  which is useful for request packets in DoS mitigation systems such
237	  as Gatekeeper.
238
239	  To compile this driver as a module, choose M here: the module will
240	  be called sch_skbprio.
241
242	  If unsure, say N.
243
244config NET_SCH_CHOKE
245	tristate "CHOose and Keep responsive flow scheduler (CHOKE)"
246	help
247	  Say Y here if you want to use the CHOKe packet scheduler (CHOose
248	  and Keep for responsive flows, CHOose and Kill for unresponsive
249	  flows). This is a variation of RED which tries to penalize flows
250	  that monopolize the queue.
251
252	  To compile this code as a module, choose M here: the
253	  module will be called sch_choke.
254
255config NET_SCH_QFQ
256	tristate "Quick Fair Queueing scheduler (QFQ)"
257	help
258	  Say Y here if you want to use the Quick Fair Queueing Scheduler (QFQ)
259	  packet scheduling algorithm.
260
261	  To compile this driver as a module, choose M here: the module
262	  will be called sch_qfq.
263
264	  If unsure, say N.
265
266config NET_SCH_CODEL
267	tristate "Controlled Delay AQM (CODEL)"
268	help
269	  Say Y here if you want to use the Controlled Delay (CODEL)
270	  packet scheduling algorithm.
271
272	  To compile this driver as a module, choose M here: the module
273	  will be called sch_codel.
274
275	  If unsure, say N.
276
277config NET_SCH_FQ_CODEL
278	tristate "Fair Queue Controlled Delay AQM (FQ_CODEL)"
279	help
280	  Say Y here if you want to use the FQ Controlled Delay (FQ_CODEL)
281	  packet scheduling algorithm.
282
283	  To compile this driver as a module, choose M here: the module
284	  will be called sch_fq_codel.
285
286	  If unsure, say N.
287
288config NET_SCH_CAKE
289	tristate "Common Applications Kept Enhanced (CAKE)"
290	help
291	  Say Y here if you want to use the Common Applications Kept Enhanced
292	  (CAKE) queue management algorithm.
293
294	  To compile this driver as a module, choose M here: the module
295	  will be called sch_cake.
296
297	  If unsure, say N.
298
299config NET_SCH_FQ
300	tristate "Fair Queue"
301	help
302	  Say Y here if you want to use the FQ packet scheduling algorithm.
303
304	  FQ does flow separation, and is able to respect pacing requirements
305	  set by TCP stack into sk->sk_pacing_rate (for locally generated
306	  traffic)
307
308	  To compile this driver as a module, choose M here: the module
309	  will be called sch_fq.
310
311	  If unsure, say N.
312
313config NET_SCH_HHF
314	tristate "Heavy-Hitter Filter (HHF)"
315	help
316	  Say Y here if you want to use the Heavy-Hitter Filter (HHF)
317	  packet scheduling algorithm.
318
319	  To compile this driver as a module, choose M here: the module
320	  will be called sch_hhf.
321
322config NET_SCH_PIE
323	tristate "Proportional Integral controller Enhanced (PIE) scheduler"
324	help
325	  Say Y here if you want to use the Proportional Integral controller
326	  Enhanced scheduler packet scheduling algorithm.
327	  For more information, please see https://tools.ietf.org/html/rfc8033
328
329	  To compile this driver as a module, choose M here: the module
330	  will be called sch_pie.
331
332	  If unsure, say N.
333
334config NET_SCH_FQ_PIE
335	depends on NET_SCH_PIE
336	tristate "Flow Queue Proportional Integral controller Enhanced (FQ-PIE)"
337	help
338	  Say Y here if you want to use the Flow Queue Proportional Integral
339	  controller Enhanced (FQ-PIE) packet scheduling algorithm.
340	  For more information, please see https://tools.ietf.org/html/rfc8033
341
342	  To compile this driver as a module, choose M here: the module
343	  will be called sch_fq_pie.
344
345	  If unsure, say N.
346
347config NET_SCH_INGRESS
348	tristate "Ingress/classifier-action Qdisc"
349	depends on NET_CLS_ACT
350	select NET_XGRESS
351	help
352	  Say Y here if you want to use classifiers for incoming and/or outgoing
353	  packets. This qdisc doesn't do anything else besides running classifiers,
354	  which can also have actions attached to them. In case of outgoing packets,
355	  classifiers that this qdisc holds are executed in the transmit path
356	  before real enqueuing to an egress qdisc happens.
357
358	  If unsure, say Y.
359
360	  To compile this code as a module, choose M here: the module will be
361	  called sch_ingress with alias of sch_clsact.
362
363config NET_SCH_PLUG
364	tristate "Plug network traffic until release (PLUG)"
365	help
366
367	  This queuing discipline allows userspace to plug/unplug a network
368	  output queue, using the netlink interface.  When it receives an
369	  enqueue command it inserts a plug into the outbound queue that
370	  causes following packets to enqueue until a dequeue command arrives
371	  over netlink, causing the plug to be removed and resuming the normal
372	  packet flow.
373
374	  This module also provides a generic "network output buffering"
375	  functionality (aka output commit), wherein upon arrival of a dequeue
376	  command, only packets up to the first plug are released for delivery.
377	  The Remus HA project uses this module to enable speculative execution
378	  of virtual machines by allowing the generated network output to be rolled
379	  back if needed.
380
381	  For more information, please refer to <http://wiki.xenproject.org/wiki/Remus>
382
383	  Say Y here if you are using this kernel for Xen dom0 and
384	  want to protect Xen guests with Remus.
385
386	  To compile this code as a module, choose M here: the
387	  module will be called sch_plug.
388
389config NET_SCH_ETS
390	tristate "Enhanced transmission selection scheduler (ETS)"
391	help
392          The Enhanced Transmission Selection scheduler is a classful
393          queuing discipline that merges functionality of PRIO and DRR
394          qdiscs in one scheduler. ETS makes it easy to configure a set of
395          strict and bandwidth-sharing bands to implement the transmission
396          selection described in 802.1Qaz.
397
398	  Say Y here if you want to use the ETS packet scheduling
399	  algorithm.
400
401	  To compile this driver as a module, choose M here: the module
402	  will be called sch_ets.
403
404	  If unsure, say N.
405
406config NET_SCH_BPF
407	bool "BPF-based Qdisc"
408	depends on BPF_SYSCALL && BPF_JIT && DEBUG_INFO_BTF
409	help
410	  This option allows BPF-based queueing disiplines. With BPF struct_ops,
411	  users can implement supported operators in Qdisc_ops using BPF programs.
412	  The queue holding skb can be built with BPF maps or graphs.
413
414	  Say Y here if you want to use BPF-based Qdisc.
415
416	  If unsure, say N.
417
418menuconfig NET_SCH_DEFAULT
419	bool "Allow override default queue discipline"
420	help
421	  Support for selection of default queuing discipline.
422
423	  Nearly all users can safely say no here, and the default
424	  of pfifo_fast will be used. Many distributions already set
425	  the default value via /proc/sys/net/core/default_qdisc.
426
427	  If unsure, say N.
428
429if NET_SCH_DEFAULT
430
431choice
432	prompt "Default queuing discipline"
433	default DEFAULT_PFIFO_FAST
434	help
435	  Select the queueing discipline that will be used by default
436	  for all network devices.
437
438	config DEFAULT_FQ
439		bool "Fair Queue" if NET_SCH_FQ
440
441	config DEFAULT_CODEL
442		bool "Controlled Delay" if NET_SCH_CODEL
443
444	config DEFAULT_FQ_CODEL
445		bool "Fair Queue Controlled Delay" if NET_SCH_FQ_CODEL
446
447	config DEFAULT_FQ_PIE
448		bool "Flow Queue Proportional Integral controller Enhanced" if NET_SCH_FQ_PIE
449
450	config DEFAULT_SFQ
451		bool "Stochastic Fair Queue" if NET_SCH_SFQ
452
453	config DEFAULT_PFIFO_FAST
454		bool "Priority FIFO Fast"
455endchoice
456
457config DEFAULT_NET_SCH
458	string
459	default "pfifo_fast" if DEFAULT_PFIFO_FAST
460	default "fq" if DEFAULT_FQ
461	default "fq_codel" if DEFAULT_FQ_CODEL
462	default "fq_pie" if DEFAULT_FQ_PIE
463	default "sfq" if DEFAULT_SFQ
464	default "pfifo_fast"
465endif
466
467comment "Classification"
468
469config NET_CLS
470	bool
471
472config NET_CLS_BASIC
473	tristate "Elementary classification (BASIC)"
474	select NET_CLS
475	help
476	  Say Y here if you want to be able to classify packets using
477	  only extended matches and actions.
478
479	  To compile this code as a module, choose M here: the
480	  module will be called cls_basic.
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_FLOW
528	tristate "Flow classifier"
529	select NET_CLS
530	help
531	  If you say Y here, you will be able to classify packets based on
532	  a configurable combination of packet keys. This is mostly useful
533	  in combination with SFQ.
534
535	  To compile this code as a module, choose M here: the
536	  module will be called cls_flow.
537
538config NET_CLS_CGROUP
539	tristate "Control Group Classifier"
540	select NET_CLS
541	select CGROUP_NET_CLASSID
542	depends on CGROUPS
543	help
544	  Say Y here if you want to classify packets based on the control
545	  cgroup of their process.
546
547	  To compile this code as a module, choose M here: the
548	  module will be called cls_cgroup.
549
550config NET_CLS_BPF
551	tristate "BPF-based classifier"
552	select NET_CLS
553	help
554	  If you say Y here, you will be able to classify packets based on
555	  programmable BPF (JIT'ed) filters as an alternative to ematches.
556
557	  To compile this code as a module, choose M here: the module will
558	  be called cls_bpf.
559
560config NET_CLS_FLOWER
561	tristate "Flower classifier"
562	select NET_CLS
563	help
564	  If you say Y here, you will be able to classify packets based on
565	  a configurable combination of packet keys and masks.
566
567	  To compile this code as a module, choose M here: the module will
568	  be called cls_flower.
569
570config NET_CLS_MATCHALL
571	tristate "Match-all classifier"
572	select NET_CLS
573	help
574	  If you say Y here, you will be able to classify packets based on
575	  nothing. Every packet will match.
576
577	  To compile this code as a module, choose M here: the module will
578	  be called cls_matchall.
579
580config NET_EMATCH
581	bool "Extended Matches"
582	select NET_CLS
583	help
584	  Say Y here if you want to use extended matches on top of classifiers
585	  and select the extended matches below.
586
587	  Extended matches are small classification helpers not worth writing
588	  a separate classifier for.
589
590	  A recent version of the iproute2 package is required to use
591	  extended matches.
592
593config NET_EMATCH_STACK
594	int "Stack size"
595	depends on NET_EMATCH
596	default "32"
597	help
598	  Size of the local stack variable used while evaluating the tree of
599	  ematches. Limits the depth of the tree, i.e. the number of
600	  encapsulated precedences. Every level requires 4 bytes of additional
601	  stack space.
602
603config NET_EMATCH_CMP
604	tristate "Simple packet data comparison"
605	depends on NET_EMATCH
606	help
607	  Say Y here if you want to be able to classify packets based on
608	  simple packet data comparisons for 8, 16, and 32bit values.
609
610	  To compile this code as a module, choose M here: the
611	  module will be called em_cmp.
612
613config NET_EMATCH_NBYTE
614	tristate "Multi byte comparison"
615	depends on NET_EMATCH
616	help
617	  Say Y here if you want to be able to classify packets based on
618	  multiple byte comparisons mainly useful for IPv6 address comparisons.
619
620	  To compile this code as a module, choose M here: the
621	  module will be called em_nbyte.
622
623config NET_EMATCH_U32
624	tristate "U32 key"
625	depends on NET_EMATCH
626	help
627	  Say Y here if you want to be able to classify packets using
628	  the famous u32 key in combination with logic relations.
629
630	  To compile this code as a module, choose M here: the
631	  module will be called em_u32.
632
633config NET_EMATCH_META
634	tristate "Metadata"
635	depends on NET_EMATCH
636	help
637	  Say Y here if you want to be able to classify packets based on
638	  metadata such as load average, netfilter attributes, socket
639	  attributes and routing decisions.
640
641	  To compile this code as a module, choose M here: the
642	  module will be called em_meta.
643
644config NET_EMATCH_TEXT
645	tristate "Textsearch"
646	depends on NET_EMATCH
647	select TEXTSEARCH
648	select TEXTSEARCH_KMP
649	select TEXTSEARCH_BM
650	select TEXTSEARCH_FSM
651	help
652	  Say Y here if you want to be able to classify packets based on
653	  textsearch comparisons.
654
655	  To compile this code as a module, choose M here: the
656	  module will be called em_text.
657
658config NET_EMATCH_CANID
659	tristate "CAN Identifier"
660	depends on NET_EMATCH && (CAN=y || CAN=m)
661	help
662	  Say Y here if you want to be able to classify CAN frames based
663	  on CAN Identifier.
664
665	  To compile this code as a module, choose M here: the
666	  module will be called em_canid.
667
668config NET_EMATCH_IPSET
669	tristate "IPset"
670	depends on NET_EMATCH && IP_SET
671	help
672	  Say Y here if you want to be able to classify packets based on
673	  ipset membership.
674
675	  To compile this code as a module, choose M here: the
676	  module will be called em_ipset.
677
678config NET_EMATCH_IPT
679	tristate "IPtables Matches"
680	depends on NET_EMATCH && NETFILTER && NETFILTER_XTABLES
681	help
682	  Say Y here to be able to classify packets based on iptables
683	  matches.
684	  Current supported match is "policy" which allows packet classification
685	  based on IPsec policy that was used during decapsulation
686
687	  To compile this code as a module, choose M here: the
688	  module will be called em_ipt.
689
690config NET_CLS_ACT
691	bool "Actions"
692	select NET_CLS
693	select NET_XGRESS
694	help
695	  Say Y here if you want to use traffic control actions. Actions
696	  get attached to classifiers and are invoked after a successful
697	  classification. They are used to overwrite the classification
698	  result, instantly drop or redirect packets, etc.
699
700	  A recent version of the iproute2 package is required to use
701	  extended matches.
702
703config NET_ACT_POLICE
704	tristate "Traffic Policing"
705	depends on NET_CLS_ACT
706	help
707	  Say Y here if you want to do traffic policing, i.e. strict
708	  bandwidth limiting. This action replaces the existing policing
709	  module.
710
711	  To compile this code as a module, choose M here: the
712	  module will be called act_police.
713
714config NET_ACT_GACT
715	tristate "Generic actions"
716	depends on NET_CLS_ACT
717	help
718	  Say Y here to take generic actions such as dropping and
719	  accepting packets.
720
721	  To compile this code as a module, choose M here: the
722	  module will be called act_gact.
723
724config GACT_PROB
725	bool "Probability support"
726	depends on NET_ACT_GACT
727	help
728	  Say Y here to use the generic action randomly or deterministically.
729
730config NET_ACT_MIRRED
731	tristate "Redirecting and Mirroring"
732	depends on NET_CLS_ACT
733	help
734	  Say Y here to allow packets to be mirrored or redirected to
735	  other devices.
736
737	  To compile this code as a module, choose M here: the
738	  module will be called act_mirred.
739
740config NET_ACT_SAMPLE
741	tristate "Traffic Sampling"
742	depends on NET_CLS_ACT
743	select PSAMPLE
744	help
745	  Say Y here to allow packet sampling tc action. The packet sample
746	  action consists of statistically choosing packets and sampling
747	  them using the psample module.
748
749	  To compile this code as a module, choose M here: the
750	  module will be called act_sample.
751
752config NET_ACT_NAT
753	tristate "Stateless NAT"
754	depends on NET_CLS_ACT
755	help
756	  Say Y here to do stateless NAT on IPv4 packets.  You should use
757	  netfilter for NAT unless you know what you are doing.
758
759	  To compile this code as a module, choose M here: the
760	  module will be called act_nat.
761
762config NET_ACT_PEDIT
763	tristate "Packet Editing"
764	depends on NET_CLS_ACT
765	help
766	  Say Y here if you want to mangle the content of packets.
767
768	  To compile this code as a module, choose M here: the
769	  module will be called act_pedit.
770
771config NET_ACT_SIMP
772	tristate "Simple Example (Debug)"
773	depends on NET_CLS_ACT
774	help
775	  Say Y here to add a simple action for demonstration purposes.
776	  It is meant as an example and for debugging purposes. It will
777	  print a configured policy string followed by the packet count
778	  to the console for every packet that passes by.
779
780	  If unsure, say N.
781
782	  To compile this code as a module, choose M here: the
783	  module will be called act_simple.
784
785config NET_ACT_SKBEDIT
786	tristate "SKB Editing"
787	depends on NET_CLS_ACT
788	help
789	  Say Y here to change skb priority or queue_mapping settings.
790
791	  If unsure, say N.
792
793	  To compile this code as a module, choose M here: the
794	  module will be called act_skbedit.
795
796config NET_ACT_CSUM
797	tristate "Checksum Updating"
798	depends on NET_CLS_ACT && INET
799	select NET_CRC32C
800	help
801	  Say Y here to update some common checksum after some direct
802	  packet alterations.
803
804	  To compile this code as a module, choose M here: the
805	  module will be called act_csum.
806
807config NET_ACT_MPLS
808	tristate "MPLS manipulation"
809	depends on NET_CLS_ACT
810	help
811	  Say Y here to push or pop MPLS headers.
812
813	  If unsure, say N.
814
815	  To compile this code as a module, choose M here: the
816	  module will be called act_mpls.
817
818config NET_ACT_VLAN
819	tristate "Vlan manipulation"
820	depends on NET_CLS_ACT
821	help
822	  Say Y here to push or pop vlan headers.
823
824	  If unsure, say N.
825
826	  To compile this code as a module, choose M here: the
827	  module will be called act_vlan.
828
829config NET_ACT_BPF
830	tristate "BPF based action"
831	depends on NET_CLS_ACT
832	help
833	  Say Y here to execute BPF code on packets. The BPF code will decide
834	  if the packet should be dropped or not.
835
836	  If unsure, say N.
837
838	  To compile this code as a module, choose M here: the
839	  module will be called act_bpf.
840
841config NET_ACT_CONNMARK
842	tristate "Netfilter Connection Mark Retriever"
843	depends on NET_CLS_ACT && NETFILTER
844	depends on NF_CONNTRACK && NF_CONNTRACK_MARK
845	help
846	  Say Y here to allow retrieving of conn mark
847
848	  If unsure, say N.
849
850	  To compile this code as a module, choose M here: the
851	  module will be called act_connmark.
852
853config NET_ACT_CTINFO
854	tristate "Netfilter Connection Mark Actions"
855	depends on NET_CLS_ACT && NETFILTER
856	depends on NF_CONNTRACK && NF_CONNTRACK_MARK
857	help
858	  Say Y here to allow transfer of a connmark stored information.
859	  Current actions transfer connmark stored DSCP into
860	  ipv4/v6 diffserv and/or to transfer connmark to packet
861	  mark.  Both are useful for restoring egress based marks
862	  back onto ingress connections for qdisc priority mapping
863	  purposes.
864
865	  If unsure, say N.
866
867	  To compile this code as a module, choose M here: the
868	  module will be called act_ctinfo.
869
870config NET_ACT_SKBMOD
871	tristate "skb data modification action"
872	depends on NET_CLS_ACT
873	help
874	 Say Y here to allow modification of skb data
875
876	 If unsure, say N.
877
878	 To compile this code as a module, choose M here: the
879	 module will be called act_skbmod.
880
881config NET_ACT_IFE
882	tristate "Inter-FE action based on IETF ForCES InterFE LFB"
883	depends on NET_CLS_ACT
884	select NET_IFE
885	help
886	  Say Y here to allow for sourcing and terminating metadata
887	  For details refer to netdev01 paper:
888	  "Distributing Linux Traffic Control Classifier-Action Subsystem"
889	   Authors: Jamal Hadi Salim and Damascene M. Joachimpillai
890
891	  To compile this code as a module, choose M here: the
892	  module will be called act_ife.
893
894config NET_ACT_TUNNEL_KEY
895	tristate "IP tunnel metadata manipulation"
896	depends on NET_CLS_ACT
897	help
898	  Say Y here to set/release ip tunnel metadata.
899
900	  If unsure, say N.
901
902	  To compile this code as a module, choose M here: the
903	  module will be called act_tunnel_key.
904
905config NET_ACT_CT
906	tristate "connection tracking tc action"
907	depends on NET_CLS_ACT && NF_CONNTRACK && (!NF_NAT || NF_NAT) && NF_FLOW_TABLE
908	select NF_CONNTRACK_OVS
909	select NF_NAT_OVS if NF_NAT
910	help
911	  Say Y here to allow sending the packets to conntrack module.
912
913	  If unsure, say N.
914
915	  To compile this code as a module, choose M here: the
916	  module will be called act_ct.
917
918config NET_ACT_GATE
919	tristate "Frame gate entry list control tc action"
920	depends on NET_CLS_ACT
921	help
922	  Say Y here to allow to control the ingress flow to be passed at
923	  specific time slot and be dropped at other specific time slot by
924	  the gate entry list.
925
926	  If unsure, say N.
927	  To compile this code as a module, choose M here: the
928	  module will be called act_gate.
929
930config NET_IFE_SKBMARK
931	tristate "Support to encoding decoding skb mark on IFE action"
932	depends on NET_ACT_IFE
933
934config NET_IFE_SKBPRIO
935	tristate "Support to encoding decoding skb prio on IFE action"
936	depends on NET_ACT_IFE
937
938config NET_IFE_SKBTCINDEX
939	tristate "Support to encoding decoding skb tcindex on IFE action"
940	depends on NET_ACT_IFE
941
942config NET_TC_SKB_EXT
943	bool "TC recirculation support"
944	depends on NET_CLS_ACT
945	select SKB_EXTENSIONS
946
947	help
948	  Say Y here to allow tc chain misses to continue in OvS datapath in
949	  the correct recirc_id, and hardware chain misses to continue in
950	  the correct chain in tc software datapath.
951
952	  Say N here if you won't be using tc<->ovs offload or tc chains offload.
953
954endif # NET_SCHED
955
956config NET_SCH_FIFO
957	bool
958