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1#
2# Traffic control configuration.
50f699b1 3#
6a2e9b73 4
85ef3e5c 5menuconfig NET_SCHED
6a2e9b73 6 bool "QoS and/or fair queueing"
3c62f75a 7 select NET_SCH_FIFO
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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
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11 delay, and which ones to drop. This is the job of the queueing
12 disciplines, several different algorithms for how to do this
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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
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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
c996d8b9 28 <http://www.linuxfoundation.org/collaborate/workgroups/networking/iproute2>.
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29
30 This Quality of Service (QoS) support will enable you to use
31 Differentiated Services (diffserv) and Resource Reservation Protocol
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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/>.
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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
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43if NET_SCHED
44
52ab4ac2 45comment "Queueing/Scheduling"
52ab4ac2 46
1da177e4 47config NET_SCH_CBQ
52ab4ac2 48 tristate "Class Based Queueing (CBQ)"
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49 ---help---
50 Say Y here if you want to use the Class-Based Queueing (CBQ) packet
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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.
1da177e4 54
52ab4ac2 55 See the top of <file:net/sched/sch_cbq.c> for more details.
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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
52ab4ac2 59 want to use as leaf disciplines.
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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
52ab4ac2 65 tristate "Hierarchical Token Bucket (HTB)"
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66 ---help---
67 Say Y here if you want to use the Hierarchical Token Buckets (HTB)
52ab4ac2 68 packet scheduling algorithm. See
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69 <http://luxik.cdi.cz/~devik/qos/htb/> for complete manual and
70 in-depth articles.
71
52ab4ac2 72 HTB is very similar to CBQ regarding its goals however is has
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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
52ab4ac2 79 tristate "Hierarchical Fair Service Curve (HFSC)"
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80 ---help---
81 Say Y here if you want to use the Hierarchical Fair Service Curve
52ab4ac2 82 (HFSC) packet scheduling algorithm.
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83
84 To compile this code as a module, choose M here: the
85 module will be called sch_hfsc.
86
1da177e4 87config NET_SCH_ATM
52ab4ac2 88 tristate "ATM Virtual Circuits (ATM)"
05b8b0fa 89 depends on ATM
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90 ---help---
91 Say Y here if you want to use the ATM pseudo-scheduler. This
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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
99acaeb9 96 See the top of <file:net/sched/sch_atm.c> for more details.
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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
52ab4ac2 102 tristate "Multi Band Priority Queueing (PRIO)"
52ab4ac2 103 ---help---
1da177e4 104 Say Y here if you want to use an n-band priority queue packet
52ab4ac2 105 scheduler.
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106
107 To compile this code as a module, choose M here: the
108 module will be called sch_prio.
109
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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
1da177e4 119config NET_SCH_RED
52ab4ac2 120 tristate "Random Early Detection (RED)"
52ab4ac2 121 ---help---
1da177e4 122 Say Y here if you want to use the Random Early Detection (RED)
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123 packet scheduling algorithm.
124
125 See the top of <file:net/sched/sch_red.c> for more details.
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126
127 To compile this code as a module, choose M here: the
128 module will be called sch_red.
129
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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
1da177e4 141config NET_SCH_SFQ
52ab4ac2 142 tristate "Stochastic Fairness Queueing (SFQ)"
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143 ---help---
144 Say Y here if you want to use the Stochastic Fairness Queueing (SFQ)
99acaeb9 145 packet scheduling algorithm.
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146
147 See the top of <file:net/sched/sch_sfq.c> for more details.
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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
52ab4ac2 153 tristate "True Link Equalizer (TEQL)"
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154 ---help---
155 Say Y here if you want to use the True Link Equalizer (TLE) packet
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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.
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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
52ab4ac2 165 tristate "Token Bucket Filter (TBF)"
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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.
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171
172 To compile this code as a module, choose M here: the
173 module will be called sch_tbf.
174
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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.
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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.
585d763a 196
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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
1da177e4 208config NET_SCH_GRED
52ab4ac2 209 tristate "Generic Random Early Detection (GRED)"
52ab4ac2 210 ---help---
1da177e4 211 Say Y here if you want to use the Generic Random Early Detection
20cc6bef 212 (GRED) packet scheduling algorithm for some of your network devices
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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
52ab4ac2 220 tristate "Differentiated Services marker (DSMARK)"
52ab4ac2 221 ---help---
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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
52ab4ac2 231 tristate "Network emulator (NETEM)"
52ab4ac2 232 ---help---
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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
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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
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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
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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
45e14433 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
0545a303 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
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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
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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
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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
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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
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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
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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
362 http://tools.ietf.org/html/draft-pan-tsvwg-pie-00
363
364 To compile this driver as a module, choose M here: the module
365 will be called sch_pie.
366
367 If unsure, say N.
368
1da177e4 369config NET_SCH_INGRESS
1f211a1b 370 tristate "Ingress/classifier-action Qdisc"
72eb7bd2 371 depends on NET_CLS_ACT
1cf51900 372 select NET_INGRESS
1f211a1b 373 select NET_EGRESS
52ab4ac2 374 ---help---
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375 Say Y here if you want to use classifiers for incoming and/or outgoing
376 packets. This qdisc doesn't do anything else besides running classifiers,
377 which can also have actions attached to them. In case of outgoing packets,
378 classifiers that this qdisc holds are executed in the transmit path
379 before real enqueuing to an egress qdisc happens.
380
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381 If unsure, say Y.
382
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383 To compile this code as a module, choose M here: the module will be
384 called sch_ingress with alias of sch_clsact.
1da177e4 385
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386config NET_SCH_PLUG
387 tristate "Plug network traffic until release (PLUG)"
388 ---help---
389
390 This queuing discipline allows userspace to plug/unplug a network
391 output queue, using the netlink interface. When it receives an
392 enqueue command it inserts a plug into the outbound queue that
393 causes following packets to enqueue until a dequeue command arrives
394 over netlink, causing the plug to be removed and resuming the normal
395 packet flow.
396
397 This module also provides a generic "network output buffering"
398 functionality (aka output commit), wherein upon arrival of a dequeue
399 command, only packets up to the first plug are released for delivery.
400 The Remus HA project uses this module to enable speculative execution
401 of virtual machines by allowing the generated network output to be rolled
402 back if needed.
403
5d330cdd 404 For more information, please refer to <http://wiki.xenproject.org/wiki/Remus>
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405
406 Say Y here if you are using this kernel for Xen dom0 and
407 want to protect Xen guests with Remus.
408
409 To compile this code as a module, choose M here: the
410 module will be called sch_plug.
411
8ea3e439 412menuconfig NET_SCH_DEFAULT
413 bool "Allow override default queue discipline"
414 ---help---
415 Support for selection of default queuing discipline.
416
417 Nearly all users can safely say no here, and the default
418 of pfifo_fast will be used. Many distributions already set
419 the default value via /proc/sys/net/core/default_qdisc.
420
421 If unsure, say N.
422
423if NET_SCH_DEFAULT
424
425choice
426 prompt "Default queuing discipline"
427 default DEFAULT_PFIFO_FAST
428 help
429 Select the queueing discipline that will be used by default
430 for all network devices.
431
432 config DEFAULT_FQ
433 bool "Fair Queue" if NET_SCH_FQ
434
435 config DEFAULT_CODEL
436 bool "Controlled Delay" if NET_SCH_CODEL
437
438 config DEFAULT_FQ_CODEL
439 bool "Fair Queue Controlled Delay" if NET_SCH_FQ_CODEL
440
441 config DEFAULT_SFQ
442 bool "Stochastic Fair Queue" if NET_SCH_SFQ
443
444 config DEFAULT_PFIFO_FAST
445 bool "Priority FIFO Fast"
446endchoice
447
448config DEFAULT_NET_SCH
449 string
450 default "pfifo_fast" if DEFAULT_PFIFO_FAST
451 default "fq" if DEFAULT_FQ
452 default "fq_codel" if DEFAULT_FQ_CODEL
453 default "sfq" if DEFAULT_SFQ
454 default "pfifo_fast"
455endif
456
52ab4ac2 457comment "Classification"
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458
459config NET_CLS
6341e62b 460 bool
1da177e4
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461
462config NET_CLS_BASIC
52ab4ac2 463 tristate "Elementary classification (BASIC)"
52ab4ac2 464 select NET_CLS
1da177e4
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465 ---help---
466 Say Y here if you want to be able to classify packets using
467 only extended matches and actions.
468
469 To compile this code as a module, choose M here: the
470 module will be called cls_basic.
471
472config NET_CLS_TCINDEX
52ab4ac2 473 tristate "Traffic-Control Index (TCINDEX)"
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474 select NET_CLS
475 ---help---
476 Say Y here if you want to be able to classify packets based on
477 traffic control indices. You will want this feature if you want
478 to implement Differentiated Services together with DSMARK.
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479
480 To compile this code as a module, choose M here: the
481 module will be called cls_tcindex.
482
483config NET_CLS_ROUTE4
52ab4ac2 484 tristate "Routing decision (ROUTE)"
034cfe48 485 depends on INET
c7066f70 486 select IP_ROUTE_CLASSID
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487 select NET_CLS
488 ---help---
489 If you say Y here, you will be able to classify packets
490 according to the route table entry they matched.
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491
492 To compile this code as a module, choose M here: the
493 module will be called cls_route.
494
1da177e4 495config NET_CLS_FW
52ab4ac2 496 tristate "Netfilter mark (FW)"
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497 select NET_CLS
498 ---help---
499 If you say Y here, you will be able to classify packets
500 according to netfilter/firewall marks.
1da177e4
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501
502 To compile this code as a module, choose M here: the
503 module will be called cls_fw.
504
505config NET_CLS_U32
52ab4ac2 506 tristate "Universal 32bit comparisons w/ hashing (U32)"
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507 select NET_CLS
508 ---help---
3539c272 509 Say Y here to be able to classify packets using a universal
52ab4ac2 510 32bit pieces based comparison scheme.
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511
512 To compile this code as a module, choose M here: the
513 module will be called cls_u32.
514
515config CLS_U32_PERF
52ab4ac2 516 bool "Performance counters support"
1da177e4 517 depends on NET_CLS_U32
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518 ---help---
519 Say Y here to make u32 gather additional statistics useful for
520 fine tuning u32 classifiers.
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521
522config CLS_U32_MARK
52ab4ac2 523 bool "Netfilter marks support"
82e91ffe 524 depends on NET_CLS_U32
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525 ---help---
526 Say Y here to be able to use netfilter marks as u32 key.
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527
528config NET_CLS_RSVP
52ab4ac2 529 tristate "IPv4 Resource Reservation Protocol (RSVP)"
52ab4ac2 530 select NET_CLS
1da177e4
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531 ---help---
532 The Resource Reservation Protocol (RSVP) permits end systems to
533 request a minimum and maximum data flow rate for a connection; this
534 is important for real time data such as streaming sound or video.
535
536 Say Y here if you want to be able to classify outgoing packets based
537 on their RSVP requests.
538
539 To compile this code as a module, choose M here: the
540 module will be called cls_rsvp.
541
542config NET_CLS_RSVP6
52ab4ac2 543 tristate "IPv6 Resource Reservation Protocol (RSVP6)"
52ab4ac2 544 select NET_CLS
1da177e4
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545 ---help---
546 The Resource Reservation Protocol (RSVP) permits end systems to
547 request a minimum and maximum data flow rate for a connection; this
548 is important for real time data such as streaming sound or video.
549
550 Say Y here if you want to be able to classify outgoing packets based
99acaeb9 551 on their RSVP requests and you are using the IPv6 protocol.
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552
553 To compile this code as a module, choose M here: the
554 module will be called cls_rsvp6.
555
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556config NET_CLS_FLOW
557 tristate "Flow classifier"
558 select NET_CLS
559 ---help---
560 If you say Y here, you will be able to classify packets based on
561 a configurable combination of packet keys. This is mostly useful
562 in combination with SFQ.
563
564 To compile this code as a module, choose M here: the
565 module will be called cls_flow.
566
f4009237 567config NET_CLS_CGROUP
8e039d84 568 tristate "Control Group Classifier"
f4009237 569 select NET_CLS
fe1217c4 570 select CGROUP_NET_CLASSID
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571 depends on CGROUPS
572 ---help---
573 Say Y here if you want to classify packets based on the control
574 cgroup of their process.
575
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576 To compile this code as a module, choose M here: the
577 module will be called cls_cgroup.
578
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579config NET_CLS_BPF
580 tristate "BPF-based classifier"
581 select NET_CLS
582 ---help---
583 If you say Y here, you will be able to classify packets based on
584 programmable BPF (JIT'ed) filters as an alternative to ematches.
585
586 To compile this code as a module, choose M here: the module will
587 be called cls_bpf.
588
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589config NET_CLS_FLOWER
590 tristate "Flower classifier"
591 select NET_CLS
592 ---help---
593 If you say Y here, you will be able to classify packets based on
594 a configurable combination of packet keys and masks.
595
596 To compile this code as a module, choose M here: the module will
597 be called cls_flower.
598
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599config NET_CLS_MATCHALL
600 tristate "Match-all classifier"
601 select NET_CLS
602 ---help---
603 If you say Y here, you will be able to classify packets based on
604 nothing. Every packet will match.
605
606 To compile this code as a module, choose M here: the module will
607 be called cls_matchall.
608
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609config NET_EMATCH
610 bool "Extended Matches"
52ab4ac2 611 select NET_CLS
1da177e4
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612 ---help---
613 Say Y here if you want to use extended matches on top of classifiers
614 and select the extended matches below.
615
616 Extended matches are small classification helpers not worth writing
52ab4ac2 617 a separate classifier for.
1da177e4 618
52ab4ac2 619 A recent version of the iproute2 package is required to use
1da177e4
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620 extended matches.
621
622config NET_EMATCH_STACK
623 int "Stack size"
624 depends on NET_EMATCH
625 default "32"
626 ---help---
627 Size of the local stack variable used while evaluating the tree of
628 ematches. Limits the depth of the tree, i.e. the number of
b824979a 629 encapsulated precedences. Every level requires 4 bytes of additional
1da177e4
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630 stack space.
631
632config NET_EMATCH_CMP
633 tristate "Simple packet data comparison"
634 depends on NET_EMATCH
635 ---help---
636 Say Y here if you want to be able to classify packets based on
637 simple packet data comparisons for 8, 16, and 32bit values.
638
639 To compile this code as a module, choose M here: the
640 module will be called em_cmp.
641
642config NET_EMATCH_NBYTE
643 tristate "Multi byte comparison"
644 depends on NET_EMATCH
645 ---help---
646 Say Y here if you want to be able to classify packets based on
647 multiple byte comparisons mainly useful for IPv6 address comparisons.
648
649 To compile this code as a module, choose M here: the
650 module will be called em_nbyte.
651
652config NET_EMATCH_U32
52ab4ac2 653 tristate "U32 key"
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654 depends on NET_EMATCH
655 ---help---
656 Say Y here if you want to be able to classify packets using
657 the famous u32 key in combination with logic relations.
658
659 To compile this code as a module, choose M here: the
660 module will be called em_u32.
661
662config NET_EMATCH_META
663 tristate "Metadata"
664 depends on NET_EMATCH
665 ---help---
bb7e8c5a 666 Say Y here if you want to be able to classify packets based on
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667 metadata such as load average, netfilter attributes, socket
668 attributes and routing decisions.
669
670 To compile this code as a module, choose M here: the
671 module will be called em_meta.
672
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673config NET_EMATCH_TEXT
674 tristate "Textsearch"
675 depends on NET_EMATCH
f2d368fa 676 select TEXTSEARCH
f7704347 677 select TEXTSEARCH_KMP
29cb9f9c 678 select TEXTSEARCH_BM
f7704347 679 select TEXTSEARCH_FSM
d675c989 680 ---help---
52ab4ac2 681 Say Y here if you want to be able to classify packets based on
f7704347 682 textsearch comparisons.
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683
684 To compile this code as a module, choose M here: the
685 module will be called em_text.
686
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687config NET_EMATCH_CANID
688 tristate "CAN Identifier"
a303fbf3 689 depends on NET_EMATCH && (CAN=y || CAN=m)
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690 ---help---
691 Say Y here if you want to be able to classify CAN frames based
692 on CAN Identifier.
693
694 To compile this code as a module, choose M here: the
695 module will be called em_canid.
696
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697config NET_EMATCH_IPSET
698 tristate "IPset"
699 depends on NET_EMATCH && IP_SET
700 ---help---
701 Say Y here if you want to be able to classify packets based on
702 ipset membership.
703
704 To compile this code as a module, choose M here: the
705 module will be called em_ipset.
706
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707config NET_EMATCH_IPT
708 tristate "IPtables Matches"
709 depends on NET_EMATCH && NETFILTER && NETFILTER_XTABLES
710 ---help---
711 Say Y here to be able to classify packets based on iptables
712 matches.
713 Current supported match is "policy" which allows packet classification
714 based on IPsec policy that was used during decapsulation
715
716 To compile this code as a module, choose M here: the
717 module will be called em_ipt.
718
1da177e4 719config NET_CLS_ACT
52ab4ac2 720 bool "Actions"
8ec1507d 721 select NET_CLS
1da177e4 722 ---help---
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723 Say Y here if you want to use traffic control actions. Actions
724 get attached to classifiers and are invoked after a successful
725 classification. They are used to overwrite the classification
726 result, instantly drop or redirect packets, etc.
727
728 A recent version of the iproute2 package is required to use
729 extended matches.
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730
731config NET_ACT_POLICE
52ab4ac2 732 tristate "Traffic Policing"
50f699b1 733 depends on NET_CLS_ACT
1da177e4 734 ---help---
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735 Say Y here if you want to do traffic policing, i.e. strict
736 bandwidth limiting. This action replaces the existing policing
737 module.
738
739 To compile this code as a module, choose M here: the
d4ae20b3 740 module will be called act_police.
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741
742config NET_ACT_GACT
52ab4ac2 743 tristate "Generic actions"
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744 depends on NET_CLS_ACT
745 ---help---
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746 Say Y here to take generic actions such as dropping and
747 accepting packets.
748
749 To compile this code as a module, choose M here: the
d4ae20b3 750 module will be called act_gact.
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751
752config GACT_PROB
52ab4ac2 753 bool "Probability support"
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754 depends on NET_ACT_GACT
755 ---help---
52ab4ac2 756 Say Y here to use the generic action randomly or deterministically.
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757
758config NET_ACT_MIRRED
52ab4ac2 759 tristate "Redirecting and Mirroring"
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760 depends on NET_CLS_ACT
761 ---help---
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762 Say Y here to allow packets to be mirrored or redirected to
763 other devices.
764
765 To compile this code as a module, choose M here: the
d4ae20b3 766 module will be called act_mirred.
1da177e4 767
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768config NET_ACT_SAMPLE
769 tristate "Traffic Sampling"
770 depends on NET_CLS_ACT
771 select PSAMPLE
772 ---help---
773 Say Y here to allow packet sampling tc action. The packet sample
774 action consists of statistically choosing packets and sampling
775 them using the psample module.
776
777 To compile this code as a module, choose M here: the
778 module will be called act_sample.
779
1da177e4 780config NET_ACT_IPT
52ab4ac2 781 tristate "IPtables targets"
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782 depends on NET_CLS_ACT && NETFILTER && IP_NF_IPTABLES
783 ---help---
3539c272 784 Say Y here to be able to invoke iptables targets after successful
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785 classification.
786
787 To compile this code as a module, choose M here: the
d4ae20b3 788 module will be called act_ipt.
1da177e4 789
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790config NET_ACT_NAT
791 tristate "Stateless NAT"
792 depends on NET_CLS_ACT
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793 ---help---
794 Say Y here to do stateless NAT on IPv4 packets. You should use
795 netfilter for NAT unless you know what you are doing.
796
797 To compile this code as a module, choose M here: the
d4ae20b3 798 module will be called act_nat.
b4219952 799
1da177e4 800config NET_ACT_PEDIT
52ab4ac2 801 tristate "Packet Editing"
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802 depends on NET_CLS_ACT
803 ---help---
52ab4ac2 804 Say Y here if you want to mangle the content of packets.
1da177e4 805
52ab4ac2 806 To compile this code as a module, choose M here: the
d4ae20b3 807 module will be called act_pedit.
1da177e4 808
db753079 809config NET_ACT_SIMP
52ab4ac2 810 tristate "Simple Example (Debug)"
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811 depends on NET_CLS_ACT
812 ---help---
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813 Say Y here to add a simple action for demonstration purposes.
814 It is meant as an example and for debugging purposes. It will
815 print a configured policy string followed by the packet count
816 to the console for every packet that passes by.
817
818 If unsure, say N.
819
820 To compile this code as a module, choose M here: the
d4ae20b3 821 module will be called act_simple.
52ab4ac2 822
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823config NET_ACT_SKBEDIT
824 tristate "SKB Editing"
825 depends on NET_CLS_ACT
826 ---help---
827 Say Y here to change skb priority or queue_mapping settings.
828
829 If unsure, say N.
830
831 To compile this code as a module, choose M here: the
d4ae20b3 832 module will be called act_skbedit.
ca9b0e27 833
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834config NET_ACT_CSUM
835 tristate "Checksum Updating"
7abac686 836 depends on NET_CLS_ACT && INET
ab9d226e 837 select LIBCRC32C
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838 ---help---
839 Say Y here to update some common checksum after some direct
840 packet alterations.
841
842 To compile this code as a module, choose M here: the
843 module will be called act_csum.
844
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845config NET_ACT_VLAN
846 tristate "Vlan manipulation"
847 depends on NET_CLS_ACT
848 ---help---
849 Say Y here to push or pop vlan headers.
850
851 If unsure, say N.
852
853 To compile this code as a module, choose M here: the
854 module will be called act_vlan.
855
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856config NET_ACT_BPF
857 tristate "BPF based action"
858 depends on NET_CLS_ACT
859 ---help---
860 Say Y here to execute BPF code on packets. The BPF code will decide
861 if the packet should be dropped or not.
862
863 If unsure, say N.
864
865 To compile this code as a module, choose M here: the
866 module will be called act_bpf.
867
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868config NET_ACT_CONNMARK
869 tristate "Netfilter Connection Mark Retriever"
870 depends on NET_CLS_ACT && NETFILTER && IP_NF_IPTABLES
2dbce096 871 depends on NF_CONNTRACK && NF_CONNTRACK_MARK
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872 ---help---
873 Say Y here to allow retrieving of conn mark
874
875 If unsure, say N.
876
877 To compile this code as a module, choose M here: the
878 module will be called act_connmark.
879
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880config NET_ACT_SKBMOD
881 tristate "skb data modification action"
882 depends on NET_CLS_ACT
883 ---help---
884 Say Y here to allow modification of skb data
885
886 If unsure, say N.
887
888 To compile this code as a module, choose M here: the
889 module will be called act_skbmod.
890
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891config NET_ACT_IFE
892 tristate "Inter-FE action based on IETF ForCES InterFE LFB"
893 depends on NET_CLS_ACT
295a6e06 894 select NET_IFE
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895 ---help---
896 Say Y here to allow for sourcing and terminating metadata
897 For details refer to netdev01 paper:
898 "Distributing Linux Traffic Control Classifier-Action Subsystem"
899 Authors: Jamal Hadi Salim and Damascene M. Joachimpillai
900
901 To compile this code as a module, choose M here: the
902 module will be called act_ife.
903
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904config NET_ACT_TUNNEL_KEY
905 tristate "IP tunnel metadata manipulation"
906 depends on NET_CLS_ACT
907 ---help---
908 Say Y here to set/release ip tunnel metadata.
909
910 If unsure, say N.
911
912 To compile this code as a module, choose M here: the
913 module will be called act_tunnel_key.
914
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915config NET_IFE_SKBMARK
916 tristate "Support to encoding decoding skb mark on IFE action"
917 depends on NET_ACT_IFE
084e2f65 918
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919config NET_IFE_SKBPRIO
920 tristate "Support to encoding decoding skb prio on IFE action"
921 depends on NET_ACT_IFE
200e10f4 922
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923config NET_IFE_SKBTCINDEX
924 tristate "Support to encoding decoding skb tcindex on IFE action"
925 depends on NET_ACT_IFE
408fbc22 926
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TG
927config NET_CLS_IND
928 bool "Incoming device classification"
05b8b0fa 929 depends on NET_CLS_U32 || NET_CLS_FW
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930 ---help---
931 Say Y here to extend the u32 and fw classifier to support
932 classification based on the incoming device. This option is
933 likely to disappear in favour of the metadata ematch.
934
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935endif # NET_SCHED
936
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937config NET_SCH_FIFO
938 bool