net/sched: Allow creating a Qdisc watchdog with other clocks
[linux-2.6-block.git] / net / sched / Kconfig
CommitLineData
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1#
2# Traffic control configuration.
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.
185
1da177e4 186config NET_SCH_GRED
52ab4ac2 187 tristate "Generic Random Early Detection (GRED)"
52ab4ac2 188 ---help---
1da177e4 189 Say Y here if you want to use the Generic Random Early Detection
20cc6bef 190 (GRED) packet scheduling algorithm for some of your network devices
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191 (see the top of <file:net/sched/sch_red.c> for details and
192 references about the algorithm).
193
194 To compile this code as a module, choose M here: the
195 module will be called sch_gred.
196
197config NET_SCH_DSMARK
52ab4ac2 198 tristate "Differentiated Services marker (DSMARK)"
52ab4ac2 199 ---help---
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200 Say Y if you want to schedule packets according to the
201 Differentiated Services architecture proposed in RFC 2475.
202 Technical information on this method, with pointers to associated
203 RFCs, is available at <http://www.gta.ufrj.br/diffserv/>.
204
205 To compile this code as a module, choose M here: the
206 module will be called sch_dsmark.
207
208config NET_SCH_NETEM
52ab4ac2 209 tristate "Network emulator (NETEM)"
52ab4ac2 210 ---help---
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211 Say Y if you want to emulate network delay, loss, and packet
212 re-ordering. This is often useful to simulate networks when
213 testing applications or protocols.
214
215 To compile this driver as a module, choose M here: the module
216 will be called sch_netem.
217
218 If unsure, say N.
219
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220config NET_SCH_DRR
221 tristate "Deficit Round Robin scheduler (DRR)"
222 help
223 Say Y here if you want to use the Deficit Round Robin (DRR) packet
224 scheduling algorithm.
225
226 To compile this driver as a module, choose M here: the module
227 will be called sch_drr.
228
229 If unsure, say N.
230
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231config NET_SCH_MQPRIO
232 tristate "Multi-queue priority scheduler (MQPRIO)"
233 help
234 Say Y here if you want to use the Multi-queue Priority scheduler.
235 This scheduler allows QOS to be offloaded on NICs that have support
236 for offloading QOS schedulers.
237
238 To compile this driver as a module, choose M here: the module will
239 be called sch_mqprio.
240
241 If unsure, say N.
242
45e14433 243config NET_SCH_CHOKE
244 tristate "CHOose and Keep responsive flow scheduler (CHOKE)"
245 help
246 Say Y here if you want to use the CHOKe packet scheduler (CHOose
247 and Keep for responsive flows, CHOose and Kill for unresponsive
248 flows). This is a variation of RED which trys to penalize flows
249 that monopolize the queue.
250
251 To compile this code as a module, choose M here: the
252 module will be called sch_choke.
253
0545a303 254config NET_SCH_QFQ
255 tristate "Quick Fair Queueing scheduler (QFQ)"
256 help
257 Say Y here if you want to use the Quick Fair Queueing Scheduler (QFQ)
258 packet scheduling algorithm.
259
260 To compile this driver as a module, choose M here: the module
261 will be called sch_qfq.
262
263 If unsure, say N.
264
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265config NET_SCH_CODEL
266 tristate "Controlled Delay AQM (CODEL)"
267 help
268 Say Y here if you want to use the Controlled Delay (CODEL)
269 packet scheduling algorithm.
270
271 To compile this driver as a module, choose M here: the module
272 will be called sch_codel.
273
274 If unsure, say N.
275
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276config NET_SCH_FQ_CODEL
277 tristate "Fair Queue Controlled Delay AQM (FQ_CODEL)"
278 help
279 Say Y here if you want to use the FQ Controlled Delay (FQ_CODEL)
280 packet scheduling algorithm.
281
282 To compile this driver as a module, choose M here: the module
283 will be called sch_fq_codel.
284
285 If unsure, say N.
286
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287config NET_SCH_FQ
288 tristate "Fair Queue"
289 help
290 Say Y here if you want to use the FQ packet scheduling algorithm.
291
292 FQ does flow separation, and is able to respect pacing requirements
293 set by TCP stack into sk->sk_pacing_rate (for localy generated
294 traffic)
295
296 To compile this driver as a module, choose M here: the module
297 will be called sch_fq.
298
299 If unsure, say N.
300
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301config NET_SCH_HHF
302 tristate "Heavy-Hitter Filter (HHF)"
303 help
304 Say Y here if you want to use the Heavy-Hitter Filter (HHF)
305 packet scheduling algorithm.
306
307 To compile this driver as a module, choose M here: the module
308 will be called sch_hhf.
309
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310config NET_SCH_PIE
311 tristate "Proportional Integral controller Enhanced (PIE) scheduler"
312 help
313 Say Y here if you want to use the Proportional Integral controller
314 Enhanced scheduler packet scheduling algorithm.
315 For more information, please see
316 http://tools.ietf.org/html/draft-pan-tsvwg-pie-00
317
318 To compile this driver as a module, choose M here: the module
319 will be called sch_pie.
320
321 If unsure, say N.
322
1da177e4 323config NET_SCH_INGRESS
1f211a1b 324 tristate "Ingress/classifier-action Qdisc"
72eb7bd2 325 depends on NET_CLS_ACT
1cf51900 326 select NET_INGRESS
1f211a1b 327 select NET_EGRESS
52ab4ac2 328 ---help---
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329 Say Y here if you want to use classifiers for incoming and/or outgoing
330 packets. This qdisc doesn't do anything else besides running classifiers,
331 which can also have actions attached to them. In case of outgoing packets,
332 classifiers that this qdisc holds are executed in the transmit path
333 before real enqueuing to an egress qdisc happens.
334
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335 If unsure, say Y.
336
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337 To compile this code as a module, choose M here: the module will be
338 called sch_ingress with alias of sch_clsact.
1da177e4 339
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340config NET_SCH_PLUG
341 tristate "Plug network traffic until release (PLUG)"
342 ---help---
343
344 This queuing discipline allows userspace to plug/unplug a network
345 output queue, using the netlink interface. When it receives an
346 enqueue command it inserts a plug into the outbound queue that
347 causes following packets to enqueue until a dequeue command arrives
348 over netlink, causing the plug to be removed and resuming the normal
349 packet flow.
350
351 This module also provides a generic "network output buffering"
352 functionality (aka output commit), wherein upon arrival of a dequeue
353 command, only packets up to the first plug are released for delivery.
354 The Remus HA project uses this module to enable speculative execution
355 of virtual machines by allowing the generated network output to be rolled
356 back if needed.
357
5d330cdd 358 For more information, please refer to <http://wiki.xenproject.org/wiki/Remus>
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359
360 Say Y here if you are using this kernel for Xen dom0 and
361 want to protect Xen guests with Remus.
362
363 To compile this code as a module, choose M here: the
364 module will be called sch_plug.
365
8ea3e439 366menuconfig NET_SCH_DEFAULT
367 bool "Allow override default queue discipline"
368 ---help---
369 Support for selection of default queuing discipline.
370
371 Nearly all users can safely say no here, and the default
372 of pfifo_fast will be used. Many distributions already set
373 the default value via /proc/sys/net/core/default_qdisc.
374
375 If unsure, say N.
376
377if NET_SCH_DEFAULT
378
379choice
380 prompt "Default queuing discipline"
381 default DEFAULT_PFIFO_FAST
382 help
383 Select the queueing discipline that will be used by default
384 for all network devices.
385
386 config DEFAULT_FQ
387 bool "Fair Queue" if NET_SCH_FQ
388
389 config DEFAULT_CODEL
390 bool "Controlled Delay" if NET_SCH_CODEL
391
392 config DEFAULT_FQ_CODEL
393 bool "Fair Queue Controlled Delay" if NET_SCH_FQ_CODEL
394
395 config DEFAULT_SFQ
396 bool "Stochastic Fair Queue" if NET_SCH_SFQ
397
398 config DEFAULT_PFIFO_FAST
399 bool "Priority FIFO Fast"
400endchoice
401
402config DEFAULT_NET_SCH
403 string
404 default "pfifo_fast" if DEFAULT_PFIFO_FAST
405 default "fq" if DEFAULT_FQ
406 default "fq_codel" if DEFAULT_FQ_CODEL
407 default "sfq" if DEFAULT_SFQ
408 default "pfifo_fast"
409endif
410
52ab4ac2 411comment "Classification"
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412
413config NET_CLS
6341e62b 414 bool
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415
416config NET_CLS_BASIC
52ab4ac2 417 tristate "Elementary classification (BASIC)"
52ab4ac2 418 select NET_CLS
1da177e4
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419 ---help---
420 Say Y here if you want to be able to classify packets using
421 only extended matches and actions.
422
423 To compile this code as a module, choose M here: the
424 module will be called cls_basic.
425
426config NET_CLS_TCINDEX
52ab4ac2 427 tristate "Traffic-Control Index (TCINDEX)"
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428 select NET_CLS
429 ---help---
430 Say Y here if you want to be able to classify packets based on
431 traffic control indices. You will want this feature if you want
432 to implement Differentiated Services together with DSMARK.
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433
434 To compile this code as a module, choose M here: the
435 module will be called cls_tcindex.
436
437config NET_CLS_ROUTE4
52ab4ac2 438 tristate "Routing decision (ROUTE)"
034cfe48 439 depends on INET
c7066f70 440 select IP_ROUTE_CLASSID
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441 select NET_CLS
442 ---help---
443 If you say Y here, you will be able to classify packets
444 according to the route table entry they matched.
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445
446 To compile this code as a module, choose M here: the
447 module will be called cls_route.
448
1da177e4 449config NET_CLS_FW
52ab4ac2 450 tristate "Netfilter mark (FW)"
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451 select NET_CLS
452 ---help---
453 If you say Y here, you will be able to classify packets
454 according to netfilter/firewall marks.
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455
456 To compile this code as a module, choose M here: the
457 module will be called cls_fw.
458
459config NET_CLS_U32
52ab4ac2 460 tristate "Universal 32bit comparisons w/ hashing (U32)"
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461 select NET_CLS
462 ---help---
3539c272 463 Say Y here to be able to classify packets using a universal
52ab4ac2 464 32bit pieces based comparison scheme.
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465
466 To compile this code as a module, choose M here: the
467 module will be called cls_u32.
468
469config CLS_U32_PERF
52ab4ac2 470 bool "Performance counters support"
1da177e4 471 depends on NET_CLS_U32
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472 ---help---
473 Say Y here to make u32 gather additional statistics useful for
474 fine tuning u32 classifiers.
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475
476config CLS_U32_MARK
52ab4ac2 477 bool "Netfilter marks support"
82e91ffe 478 depends on NET_CLS_U32
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479 ---help---
480 Say Y here to be able to use netfilter marks as u32 key.
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481
482config NET_CLS_RSVP
52ab4ac2 483 tristate "IPv4 Resource Reservation Protocol (RSVP)"
52ab4ac2 484 select NET_CLS
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485 ---help---
486 The Resource Reservation Protocol (RSVP) permits end systems to
487 request a minimum and maximum data flow rate for a connection; this
488 is important for real time data such as streaming sound or video.
489
490 Say Y here if you want to be able to classify outgoing packets based
491 on their RSVP requests.
492
493 To compile this code as a module, choose M here: the
494 module will be called cls_rsvp.
495
496config NET_CLS_RSVP6
52ab4ac2 497 tristate "IPv6 Resource Reservation Protocol (RSVP6)"
52ab4ac2 498 select NET_CLS
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499 ---help---
500 The Resource Reservation Protocol (RSVP) permits end systems to
501 request a minimum and maximum data flow rate for a connection; this
502 is important for real time data such as streaming sound or video.
503
504 Say Y here if you want to be able to classify outgoing packets based
99acaeb9 505 on their RSVP requests and you are using the IPv6 protocol.
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506
507 To compile this code as a module, choose M here: the
508 module will be called cls_rsvp6.
509
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510config NET_CLS_FLOW
511 tristate "Flow classifier"
512 select NET_CLS
513 ---help---
514 If you say Y here, you will be able to classify packets based on
515 a configurable combination of packet keys. This is mostly useful
516 in combination with SFQ.
517
518 To compile this code as a module, choose M here: the
519 module will be called cls_flow.
520
f4009237 521config NET_CLS_CGROUP
8e039d84 522 tristate "Control Group Classifier"
f4009237 523 select NET_CLS
fe1217c4 524 select CGROUP_NET_CLASSID
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525 depends on CGROUPS
526 ---help---
527 Say Y here if you want to classify packets based on the control
528 cgroup of their process.
529
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530 To compile this code as a module, choose M here: the
531 module will be called cls_cgroup.
532
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533config NET_CLS_BPF
534 tristate "BPF-based classifier"
535 select NET_CLS
536 ---help---
537 If you say Y here, you will be able to classify packets based on
538 programmable BPF (JIT'ed) filters as an alternative to ematches.
539
540 To compile this code as a module, choose M here: the module will
541 be called cls_bpf.
542
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543config NET_CLS_FLOWER
544 tristate "Flower classifier"
545 select NET_CLS
546 ---help---
547 If you say Y here, you will be able to classify packets based on
548 a configurable combination of packet keys and masks.
549
550 To compile this code as a module, choose M here: the module will
551 be called cls_flower.
552
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553config NET_CLS_MATCHALL
554 tristate "Match-all classifier"
555 select NET_CLS
556 ---help---
557 If you say Y here, you will be able to classify packets based on
558 nothing. Every packet will match.
559
560 To compile this code as a module, choose M here: the module will
561 be called cls_matchall.
562
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563config NET_EMATCH
564 bool "Extended Matches"
52ab4ac2 565 select NET_CLS
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566 ---help---
567 Say Y here if you want to use extended matches on top of classifiers
568 and select the extended matches below.
569
570 Extended matches are small classification helpers not worth writing
52ab4ac2 571 a separate classifier for.
1da177e4 572
52ab4ac2 573 A recent version of the iproute2 package is required to use
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574 extended matches.
575
576config NET_EMATCH_STACK
577 int "Stack size"
578 depends on NET_EMATCH
579 default "32"
580 ---help---
581 Size of the local stack variable used while evaluating the tree of
582 ematches. Limits the depth of the tree, i.e. the number of
b824979a 583 encapsulated precedences. Every level requires 4 bytes of additional
1da177e4
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584 stack space.
585
586config NET_EMATCH_CMP
587 tristate "Simple packet data comparison"
588 depends on NET_EMATCH
589 ---help---
590 Say Y here if you want to be able to classify packets based on
591 simple packet data comparisons for 8, 16, and 32bit values.
592
593 To compile this code as a module, choose M here: the
594 module will be called em_cmp.
595
596config NET_EMATCH_NBYTE
597 tristate "Multi byte comparison"
598 depends on NET_EMATCH
599 ---help---
600 Say Y here if you want to be able to classify packets based on
601 multiple byte comparisons mainly useful for IPv6 address comparisons.
602
603 To compile this code as a module, choose M here: the
604 module will be called em_nbyte.
605
606config NET_EMATCH_U32
52ab4ac2 607 tristate "U32 key"
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608 depends on NET_EMATCH
609 ---help---
610 Say Y here if you want to be able to classify packets using
611 the famous u32 key in combination with logic relations.
612
613 To compile this code as a module, choose M here: the
614 module will be called em_u32.
615
616config NET_EMATCH_META
617 tristate "Metadata"
618 depends on NET_EMATCH
619 ---help---
bb7e8c5a 620 Say Y here if you want to be able to classify packets based on
1da177e4
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621 metadata such as load average, netfilter attributes, socket
622 attributes and routing decisions.
623
624 To compile this code as a module, choose M here: the
625 module will be called em_meta.
626
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627config NET_EMATCH_TEXT
628 tristate "Textsearch"
629 depends on NET_EMATCH
f2d368fa 630 select TEXTSEARCH
f7704347 631 select TEXTSEARCH_KMP
29cb9f9c 632 select TEXTSEARCH_BM
f7704347 633 select TEXTSEARCH_FSM
d675c989 634 ---help---
52ab4ac2 635 Say Y here if you want to be able to classify packets based on
f7704347 636 textsearch comparisons.
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637
638 To compile this code as a module, choose M here: the
639 module will be called em_text.
640
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641config NET_EMATCH_CANID
642 tristate "CAN Identifier"
a303fbf3 643 depends on NET_EMATCH && (CAN=y || CAN=m)
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644 ---help---
645 Say Y here if you want to be able to classify CAN frames based
646 on CAN Identifier.
647
648 To compile this code as a module, choose M here: the
649 module will be called em_canid.
650
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651config NET_EMATCH_IPSET
652 tristate "IPset"
653 depends on NET_EMATCH && IP_SET
654 ---help---
655 Say Y here if you want to be able to classify packets based on
656 ipset membership.
657
658 To compile this code as a module, choose M here: the
659 module will be called em_ipset.
660
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661config NET_EMATCH_IPT
662 tristate "IPtables Matches"
663 depends on NET_EMATCH && NETFILTER && NETFILTER_XTABLES
664 ---help---
665 Say Y here to be able to classify packets based on iptables
666 matches.
667 Current supported match is "policy" which allows packet classification
668 based on IPsec policy that was used during decapsulation
669
670 To compile this code as a module, choose M here: the
671 module will be called em_ipt.
672
1da177e4 673config NET_CLS_ACT
52ab4ac2 674 bool "Actions"
8ec1507d 675 select NET_CLS
1da177e4 676 ---help---
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677 Say Y here if you want to use traffic control actions. Actions
678 get attached to classifiers and are invoked after a successful
679 classification. They are used to overwrite the classification
680 result, instantly drop or redirect packets, etc.
681
682 A recent version of the iproute2 package is required to use
683 extended matches.
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684
685config NET_ACT_POLICE
52ab4ac2 686 tristate "Traffic Policing"
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687 depends on NET_CLS_ACT
688 ---help---
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689 Say Y here if you want to do traffic policing, i.e. strict
690 bandwidth limiting. This action replaces the existing policing
691 module.
692
693 To compile this code as a module, choose M here: the
d4ae20b3 694 module will be called act_police.
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695
696config NET_ACT_GACT
52ab4ac2 697 tristate "Generic actions"
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698 depends on NET_CLS_ACT
699 ---help---
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700 Say Y here to take generic actions such as dropping and
701 accepting packets.
702
703 To compile this code as a module, choose M here: the
d4ae20b3 704 module will be called act_gact.
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705
706config GACT_PROB
52ab4ac2 707 bool "Probability support"
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708 depends on NET_ACT_GACT
709 ---help---
52ab4ac2 710 Say Y here to use the generic action randomly or deterministically.
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711
712config NET_ACT_MIRRED
52ab4ac2 713 tristate "Redirecting and Mirroring"
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714 depends on NET_CLS_ACT
715 ---help---
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716 Say Y here to allow packets to be mirrored or redirected to
717 other devices.
718
719 To compile this code as a module, choose M here: the
d4ae20b3 720 module will be called act_mirred.
1da177e4 721
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722config NET_ACT_SAMPLE
723 tristate "Traffic Sampling"
724 depends on NET_CLS_ACT
725 select PSAMPLE
726 ---help---
727 Say Y here to allow packet sampling tc action. The packet sample
728 action consists of statistically choosing packets and sampling
729 them using the psample module.
730
731 To compile this code as a module, choose M here: the
732 module will be called act_sample.
733
1da177e4 734config NET_ACT_IPT
52ab4ac2 735 tristate "IPtables targets"
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736 depends on NET_CLS_ACT && NETFILTER && IP_NF_IPTABLES
737 ---help---
3539c272 738 Say Y here to be able to invoke iptables targets after successful
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739 classification.
740
741 To compile this code as a module, choose M here: the
d4ae20b3 742 module will be called act_ipt.
1da177e4 743
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744config NET_ACT_NAT
745 tristate "Stateless NAT"
746 depends on NET_CLS_ACT
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747 ---help---
748 Say Y here to do stateless NAT on IPv4 packets. You should use
749 netfilter for NAT unless you know what you are doing.
750
751 To compile this code as a module, choose M here: the
d4ae20b3 752 module will be called act_nat.
b4219952 753
1da177e4 754config NET_ACT_PEDIT
52ab4ac2 755 tristate "Packet Editing"
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756 depends on NET_CLS_ACT
757 ---help---
52ab4ac2 758 Say Y here if you want to mangle the content of packets.
1da177e4 759
52ab4ac2 760 To compile this code as a module, choose M here: the
d4ae20b3 761 module will be called act_pedit.
1da177e4 762
db753079 763config NET_ACT_SIMP
52ab4ac2 764 tristate "Simple Example (Debug)"
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765 depends on NET_CLS_ACT
766 ---help---
52ab4ac2
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767 Say Y here to add a simple action for demonstration purposes.
768 It is meant as an example and for debugging purposes. It will
769 print a configured policy string followed by the packet count
770 to the console for every packet that passes by.
771
772 If unsure, say N.
773
774 To compile this code as a module, choose M here: the
d4ae20b3 775 module will be called act_simple.
52ab4ac2 776
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777config NET_ACT_SKBEDIT
778 tristate "SKB Editing"
779 depends on NET_CLS_ACT
780 ---help---
781 Say Y here to change skb priority or queue_mapping settings.
782
783 If unsure, say N.
784
785 To compile this code as a module, choose M here: the
d4ae20b3 786 module will be called act_skbedit.
ca9b0e27 787
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788config NET_ACT_CSUM
789 tristate "Checksum Updating"
7abac686 790 depends on NET_CLS_ACT && INET
ab9d226e 791 select LIBCRC32C
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792 ---help---
793 Say Y here to update some common checksum after some direct
794 packet alterations.
795
796 To compile this code as a module, choose M here: the
797 module will be called act_csum.
798
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799config NET_ACT_VLAN
800 tristate "Vlan manipulation"
801 depends on NET_CLS_ACT
802 ---help---
803 Say Y here to push or pop vlan headers.
804
805 If unsure, say N.
806
807 To compile this code as a module, choose M here: the
808 module will be called act_vlan.
809
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810config NET_ACT_BPF
811 tristate "BPF based action"
812 depends on NET_CLS_ACT
813 ---help---
814 Say Y here to execute BPF code on packets. The BPF code will decide
815 if the packet should be dropped or not.
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_bpf.
821
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822config NET_ACT_CONNMARK
823 tristate "Netfilter Connection Mark Retriever"
824 depends on NET_CLS_ACT && NETFILTER && IP_NF_IPTABLES
2dbce096 825 depends on NF_CONNTRACK && NF_CONNTRACK_MARK
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826 ---help---
827 Say Y here to allow retrieving of conn mark
828
829 If unsure, say N.
830
831 To compile this code as a module, choose M here: the
832 module will be called act_connmark.
833
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834config NET_ACT_SKBMOD
835 tristate "skb data modification action"
836 depends on NET_CLS_ACT
837 ---help---
838 Say Y here to allow modification of skb data
839
840 If unsure, say N.
841
842 To compile this code as a module, choose M here: the
843 module will be called act_skbmod.
844
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845config NET_ACT_IFE
846 tristate "Inter-FE action based on IETF ForCES InterFE LFB"
847 depends on NET_CLS_ACT
295a6e06 848 select NET_IFE
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849 ---help---
850 Say Y here to allow for sourcing and terminating metadata
851 For details refer to netdev01 paper:
852 "Distributing Linux Traffic Control Classifier-Action Subsystem"
853 Authors: Jamal Hadi Salim and Damascene M. Joachimpillai
854
855 To compile this code as a module, choose M here: the
856 module will be called act_ife.
857
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858config NET_ACT_TUNNEL_KEY
859 tristate "IP tunnel metadata manipulation"
860 depends on NET_CLS_ACT
861 ---help---
862 Say Y here to set/release ip tunnel metadata.
863
864 If unsure, say N.
865
866 To compile this code as a module, choose M here: the
867 module will be called act_tunnel_key.
868
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869config NET_IFE_SKBMARK
870 tristate "Support to encoding decoding skb mark on IFE action"
871 depends on NET_ACT_IFE
084e2f65 872
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873config NET_IFE_SKBPRIO
874 tristate "Support to encoding decoding skb prio on IFE action"
875 depends on NET_ACT_IFE
200e10f4 876
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877config NET_IFE_SKBTCINDEX
878 tristate "Support to encoding decoding skb tcindex on IFE action"
879 depends on NET_ACT_IFE
408fbc22 880
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881config NET_CLS_IND
882 bool "Incoming device classification"
05b8b0fa 883 depends on NET_CLS_U32 || NET_CLS_FW
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884 ---help---
885 Say Y here to extend the u32 and fw classifier to support
886 classification based on the incoming device. This option is
887 likely to disappear in favour of the metadata ematch.
888
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889endif # NET_SCHED
890
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891config NET_SCH_FIFO
892 bool