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ec8f24b7 | 1 | # SPDX-License-Identifier: GPL-2.0-only |
1da177e4 LT |
2 | # |
3 | # Traffic control configuration. | |
50f699b1 | 4 | # |
6a2e9b73 | 5 | |
85ef3e5c | 6 | menuconfig NET_SCHED |
6a2e9b73 | 7 | bool "QoS and/or fair queueing" |
3c62f75a | 8 | select NET_SCH_FIFO |
a7f7f624 | 9 | help |
6a2e9b73 SR |
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 | |
52ab4ac2 TG |
12 | delay, and which ones to drop. This is the job of the queueing |
13 | disciplines, several different algorithms for how to do this | |
6a2e9b73 SR |
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 | |
5d330cdd AS |
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 | |
c996d8b9 | 29 | <http://www.linuxfoundation.org/collaborate/workgroups/networking/iproute2>. |
6a2e9b73 SR |
30 | |
31 | This Quality of Service (QoS) support will enable you to use | |
32 | Differentiated Services (diffserv) and Resource Reservation Protocol | |
52ab4ac2 TG |
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/>. | |
6a2e9b73 SR |
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 | ||
05b8b0fa RZ |
44 | if NET_SCHED |
45 | ||
52ab4ac2 | 46 | comment "Queueing/Scheduling" |
52ab4ac2 | 47 | |
1da177e4 | 48 | config NET_SCH_CBQ |
52ab4ac2 | 49 | tristate "Class Based Queueing (CBQ)" |
a7f7f624 | 50 | help |
1da177e4 | 51 | Say Y here if you want to use the Class-Based Queueing (CBQ) packet |
52ab4ac2 TG |
52 | scheduling algorithm. This algorithm classifies the waiting packets |
53 | into a tree-like hierarchy of classes; the leaves of this tree are | |
54 | in turn scheduled by separate algorithms. | |
1da177e4 | 55 | |
52ab4ac2 | 56 | See the top of <file:net/sched/sch_cbq.c> for more details. |
1da177e4 LT |
57 | |
58 | CBQ is a commonly used scheduler, so if you're unsure, you should | |
59 | say Y here. Then say Y to all the queueing algorithms below that you | |
52ab4ac2 | 60 | want to use as leaf disciplines. |
1da177e4 LT |
61 | |
62 | To compile this code as a module, choose M here: the | |
63 | module will be called sch_cbq. | |
64 | ||
65 | config NET_SCH_HTB | |
52ab4ac2 | 66 | tristate "Hierarchical Token Bucket (HTB)" |
a7f7f624 | 67 | help |
1da177e4 | 68 | Say Y here if you want to use the Hierarchical Token Buckets (HTB) |
52ab4ac2 | 69 | packet scheduling algorithm. See |
1da177e4 LT |
70 | <http://luxik.cdi.cz/~devik/qos/htb/> for complete manual and |
71 | in-depth articles. | |
72 | ||
52ab4ac2 | 73 | HTB is very similar to CBQ regarding its goals however is has |
1da177e4 LT |
74 | different properties and different algorithm. |
75 | ||
76 | To compile this code as a module, choose M here: the | |
77 | module will be called sch_htb. | |
78 | ||
79 | config NET_SCH_HFSC | |
52ab4ac2 | 80 | tristate "Hierarchical Fair Service Curve (HFSC)" |
a7f7f624 | 81 | help |
1da177e4 | 82 | Say Y here if you want to use the Hierarchical Fair Service Curve |
52ab4ac2 | 83 | (HFSC) packet scheduling algorithm. |
1da177e4 LT |
84 | |
85 | To compile this code as a module, choose M here: the | |
86 | module will be called sch_hfsc. | |
87 | ||
1da177e4 | 88 | config NET_SCH_ATM |
52ab4ac2 | 89 | tristate "ATM Virtual Circuits (ATM)" |
05b8b0fa | 90 | depends on ATM |
a7f7f624 | 91 | help |
1da177e4 | 92 | Say Y here if you want to use the ATM pseudo-scheduler. This |
52ab4ac2 TG |
93 | provides a framework for invoking classifiers, which in turn |
94 | select classes of this queuing discipline. Each class maps | |
95 | the flow(s) it is handling to a given virtual circuit. | |
96 | ||
99acaeb9 | 97 | See the top of <file:net/sched/sch_atm.c> for more details. |
1da177e4 LT |
98 | |
99 | To compile this code as a module, choose M here: the | |
100 | module will be called sch_atm. | |
101 | ||
102 | config NET_SCH_PRIO | |
52ab4ac2 | 103 | tristate "Multi Band Priority Queueing (PRIO)" |
a7f7f624 | 104 | help |
1da177e4 | 105 | Say Y here if you want to use an n-band priority queue packet |
52ab4ac2 | 106 | scheduler. |
1da177e4 LT |
107 | |
108 | To compile this code as a module, choose M here: the | |
109 | module will be called sch_prio. | |
110 | ||
92651940 AD |
111 | config NET_SCH_MULTIQ |
112 | tristate "Hardware Multiqueue-aware Multi Band Queuing (MULTIQ)" | |
a7f7f624 | 113 | help |
92651940 AD |
114 | Say Y here if you want to use an n-band queue packet scheduler |
115 | to support devices that have multiple hardware transmit queues. | |
116 | ||
117 | To compile this code as a module, choose M here: the | |
118 | module will be called sch_multiq. | |
119 | ||
1da177e4 | 120 | config NET_SCH_RED |
52ab4ac2 | 121 | tristate "Random Early Detection (RED)" |
a7f7f624 | 122 | help |
1da177e4 | 123 | Say Y here if you want to use the Random Early Detection (RED) |
52ab4ac2 TG |
124 | packet scheduling algorithm. |
125 | ||
126 | See the top of <file:net/sched/sch_red.c> for more details. | |
1da177e4 LT |
127 | |
128 | To compile this code as a module, choose M here: the | |
129 | module will be called sch_red. | |
130 | ||
e13e02a3 ED |
131 | config NET_SCH_SFB |
132 | tristate "Stochastic Fair Blue (SFB)" | |
a7f7f624 | 133 | help |
e13e02a3 ED |
134 | Say Y here if you want to use the Stochastic Fair Blue (SFB) |
135 | packet scheduling algorithm. | |
136 | ||
137 | See the top of <file:net/sched/sch_sfb.c> for more details. | |
138 | ||
139 | To compile this code as a module, choose M here: the | |
140 | module will be called sch_sfb. | |
141 | ||
1da177e4 | 142 | config NET_SCH_SFQ |
52ab4ac2 | 143 | tristate "Stochastic Fairness Queueing (SFQ)" |
a7f7f624 | 144 | help |
1da177e4 | 145 | Say Y here if you want to use the Stochastic Fairness Queueing (SFQ) |
99acaeb9 | 146 | packet scheduling algorithm. |
52ab4ac2 TG |
147 | |
148 | See the top of <file:net/sched/sch_sfq.c> for more details. | |
1da177e4 LT |
149 | |
150 | To compile this code as a module, choose M here: the | |
151 | module will be called sch_sfq. | |
152 | ||
153 | config NET_SCH_TEQL | |
52ab4ac2 | 154 | tristate "True Link Equalizer (TEQL)" |
a7f7f624 | 155 | help |
1da177e4 | 156 | Say Y here if you want to use the True Link Equalizer (TLE) packet |
52ab4ac2 TG |
157 | scheduling algorithm. This queueing discipline allows the combination |
158 | of several physical devices into one virtual device. | |
159 | ||
160 | See the top of <file:net/sched/sch_teql.c> for more details. | |
1da177e4 LT |
161 | |
162 | To compile this code as a module, choose M here: the | |
163 | module will be called sch_teql. | |
164 | ||
165 | config NET_SCH_TBF | |
52ab4ac2 | 166 | tristate "Token Bucket Filter (TBF)" |
a7f7f624 | 167 | help |
52ab4ac2 TG |
168 | Say Y here if you want to use the Token Bucket Filter (TBF) packet |
169 | scheduling algorithm. | |
170 | ||
171 | See the top of <file:net/sched/sch_tbf.c> for more details. | |
1da177e4 LT |
172 | |
173 | To compile this code as a module, choose M here: the | |
174 | module will be called sch_tbf. | |
175 | ||
585d763a VCG |
176 | config NET_SCH_CBS |
177 | tristate "Credit Based Shaper (CBS)" | |
a7f7f624 | 178 | help |
585d763a VCG |
179 | Say Y here if you want to use the Credit Based Shaper (CBS) packet |
180 | scheduling algorithm. | |
181 | ||
182 | See the top of <file:net/sched/sch_cbs.c> for more details. | |
183 | ||
184 | To compile this code as a module, choose M here: the | |
185 | module will be called sch_cbs. | |
25db26a9 VCG |
186 | |
187 | config NET_SCH_ETF | |
188 | tristate "Earliest TxTime First (ETF)" | |
189 | help | |
190 | Say Y here if you want to use the Earliest TxTime First (ETF) packet | |
191 | scheduling algorithm. | |
192 | ||
193 | See the top of <file:net/sched/sch_etf.c> for more details. | |
194 | ||
195 | To compile this code as a module, choose M here: the | |
196 | module will be called sch_etf. | |
585d763a | 197 | |
5a781ccb VCG |
198 | config NET_SCH_TAPRIO |
199 | tristate "Time Aware Priority (taprio) Scheduler" | |
200 | help | |
201 | Say Y here if you want to use the Time Aware Priority (taprio) packet | |
202 | scheduling algorithm. | |
203 | ||
204 | See the top of <file:net/sched/sch_taprio.c> for more details. | |
205 | ||
206 | To compile this code as a module, choose M here: the | |
207 | module will be called sch_taprio. | |
208 | ||
1da177e4 | 209 | config NET_SCH_GRED |
52ab4ac2 | 210 | tristate "Generic Random Early Detection (GRED)" |
a7f7f624 | 211 | help |
1da177e4 | 212 | Say Y here if you want to use the Generic Random Early Detection |
20cc6bef | 213 | (GRED) packet scheduling algorithm for some of your network devices |
1da177e4 LT |
214 | (see the top of <file:net/sched/sch_red.c> for details and |
215 | references about the algorithm). | |
216 | ||
217 | To compile this code as a module, choose M here: the | |
218 | module will be called sch_gred. | |
219 | ||
220 | config NET_SCH_DSMARK | |
52ab4ac2 | 221 | tristate "Differentiated Services marker (DSMARK)" |
a7f7f624 | 222 | help |
1da177e4 LT |
223 | Say Y if you want to schedule packets according to the |
224 | Differentiated Services architecture proposed in RFC 2475. | |
225 | Technical information on this method, with pointers to associated | |
226 | RFCs, is available at <http://www.gta.ufrj.br/diffserv/>. | |
227 | ||
228 | To compile this code as a module, choose M here: the | |
229 | module will be called sch_dsmark. | |
230 | ||
231 | config NET_SCH_NETEM | |
52ab4ac2 | 232 | tristate "Network emulator (NETEM)" |
a7f7f624 | 233 | help |
1da177e4 LT |
234 | Say Y if you want to emulate network delay, loss, and packet |
235 | re-ordering. This is often useful to simulate networks when | |
236 | testing applications or protocols. | |
237 | ||
238 | To compile this driver as a module, choose M here: the module | |
239 | will be called sch_netem. | |
240 | ||
241 | If unsure, say N. | |
242 | ||
13d2a1d2 PM |
243 | config NET_SCH_DRR |
244 | tristate "Deficit Round Robin scheduler (DRR)" | |
245 | help | |
246 | Say Y here if you want to use the Deficit Round Robin (DRR) packet | |
247 | scheduling algorithm. | |
248 | ||
249 | To compile this driver as a module, choose M here: the module | |
250 | will be called sch_drr. | |
251 | ||
252 | If unsure, say N. | |
253 | ||
b8970f0b JF |
254 | config NET_SCH_MQPRIO |
255 | tristate "Multi-queue priority scheduler (MQPRIO)" | |
256 | help | |
257 | Say Y here if you want to use the Multi-queue Priority scheduler. | |
258 | This scheduler allows QOS to be offloaded on NICs that have support | |
259 | for offloading QOS schedulers. | |
260 | ||
261 | To compile this driver as a module, choose M here: the module will | |
262 | be called sch_mqprio. | |
263 | ||
264 | If unsure, say N. | |
265 | ||
aea5f654 ND |
266 | config NET_SCH_SKBPRIO |
267 | tristate "SKB priority queue scheduler (SKBPRIO)" | |
268 | help | |
269 | Say Y here if you want to use the SKB priority queue | |
270 | scheduler. This schedules packets according to skb->priority, | |
271 | which is useful for request packets in DoS mitigation systems such | |
272 | as Gatekeeper. | |
273 | ||
274 | To compile this driver as a module, choose M here: the module will | |
275 | be called sch_skbprio. | |
276 | ||
277 | If unsure, say N. | |
278 | ||
45e14433 | 279 | config NET_SCH_CHOKE |
280 | tristate "CHOose and Keep responsive flow scheduler (CHOKE)" | |
281 | help | |
282 | Say Y here if you want to use the CHOKe packet scheduler (CHOose | |
283 | and Keep for responsive flows, CHOose and Kill for unresponsive | |
284 | flows). This is a variation of RED which trys to penalize flows | |
285 | that monopolize the queue. | |
286 | ||
287 | To compile this code as a module, choose M here: the | |
288 | module will be called sch_choke. | |
289 | ||
0545a303 | 290 | config NET_SCH_QFQ |
291 | tristate "Quick Fair Queueing scheduler (QFQ)" | |
292 | help | |
293 | Say Y here if you want to use the Quick Fair Queueing Scheduler (QFQ) | |
294 | packet scheduling algorithm. | |
295 | ||
296 | To compile this driver as a module, choose M here: the module | |
297 | will be called sch_qfq. | |
298 | ||
299 | If unsure, say N. | |
300 | ||
76e3cc12 ED |
301 | config NET_SCH_CODEL |
302 | tristate "Controlled Delay AQM (CODEL)" | |
303 | help | |
304 | Say Y here if you want to use the Controlled Delay (CODEL) | |
305 | packet scheduling algorithm. | |
306 | ||
307 | To compile this driver as a module, choose M here: the module | |
308 | will be called sch_codel. | |
309 | ||
310 | If unsure, say N. | |
311 | ||
4b549a2e ED |
312 | config NET_SCH_FQ_CODEL |
313 | tristate "Fair Queue Controlled Delay AQM (FQ_CODEL)" | |
314 | help | |
315 | Say Y here if you want to use the FQ Controlled Delay (FQ_CODEL) | |
316 | packet scheduling algorithm. | |
317 | ||
318 | To compile this driver as a module, choose M here: the module | |
319 | will be called sch_fq_codel. | |
320 | ||
321 | If unsure, say N. | |
322 | ||
046f6fd5 THJ |
323 | config NET_SCH_CAKE |
324 | tristate "Common Applications Kept Enhanced (CAKE)" | |
325 | help | |
326 | Say Y here if you want to use the Common Applications Kept Enhanced | |
bf69abad | 327 | (CAKE) queue management algorithm. |
046f6fd5 THJ |
328 | |
329 | To compile this driver as a module, choose M here: the module | |
330 | will be called sch_cake. | |
331 | ||
332 | If unsure, say N. | |
333 | ||
afe4fd06 ED |
334 | config NET_SCH_FQ |
335 | tristate "Fair Queue" | |
336 | help | |
337 | Say Y here if you want to use the FQ packet scheduling algorithm. | |
338 | ||
339 | FQ does flow separation, and is able to respect pacing requirements | |
340 | set by TCP stack into sk->sk_pacing_rate (for localy generated | |
341 | traffic) | |
342 | ||
343 | To compile this driver as a module, choose M here: the module | |
344 | will be called sch_fq. | |
345 | ||
346 | If unsure, say N. | |
347 | ||
10239edf TL |
348 | config NET_SCH_HHF |
349 | tristate "Heavy-Hitter Filter (HHF)" | |
350 | help | |
351 | Say Y here if you want to use the Heavy-Hitter Filter (HHF) | |
352 | packet scheduling algorithm. | |
353 | ||
354 | To compile this driver as a module, choose M here: the module | |
355 | will be called sch_hhf. | |
356 | ||
d4b36210 VS |
357 | config NET_SCH_PIE |
358 | tristate "Proportional Integral controller Enhanced (PIE) scheduler" | |
359 | help | |
360 | Say Y here if you want to use the Proportional Integral controller | |
361 | Enhanced scheduler packet scheduling algorithm. | |
1f8389bf | 362 | For more information, please see https://tools.ietf.org/html/rfc8033 |
d4b36210 VS |
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 | ||
ec97ecf1 MT |
369 | config NET_SCH_FQ_PIE |
370 | depends on NET_SCH_PIE | |
371 | tristate "Flow Queue Proportional Integral controller Enhanced (FQ-PIE)" | |
372 | help | |
373 | Say Y here if you want to use the Flow Queue Proportional Integral | |
374 | controller Enhanced (FQ-PIE) packet scheduling algorithm. | |
375 | For more information, please see https://tools.ietf.org/html/rfc8033 | |
376 | ||
377 | To compile this driver as a module, choose M here: the module | |
378 | will be called sch_fq_pie. | |
379 | ||
380 | If unsure, say N. | |
381 | ||
1da177e4 | 382 | config NET_SCH_INGRESS |
1f211a1b | 383 | tristate "Ingress/classifier-action Qdisc" |
72eb7bd2 | 384 | depends on NET_CLS_ACT |
1cf51900 | 385 | select NET_INGRESS |
1f211a1b | 386 | select NET_EGRESS |
a7f7f624 | 387 | help |
1f211a1b DB |
388 | Say Y here if you want to use classifiers for incoming and/or outgoing |
389 | packets. This qdisc doesn't do anything else besides running classifiers, | |
390 | which can also have actions attached to them. In case of outgoing packets, | |
391 | classifiers that this qdisc holds are executed in the transmit path | |
392 | before real enqueuing to an egress qdisc happens. | |
393 | ||
1da177e4 LT |
394 | If unsure, say Y. |
395 | ||
1f211a1b DB |
396 | To compile this code as a module, choose M here: the module will be |
397 | called sch_ingress with alias of sch_clsact. | |
1da177e4 | 398 | |
c3059be1 SR |
399 | config NET_SCH_PLUG |
400 | tristate "Plug network traffic until release (PLUG)" | |
a7f7f624 | 401 | help |
c3059be1 SR |
402 | |
403 | This queuing discipline allows userspace to plug/unplug a network | |
404 | output queue, using the netlink interface. When it receives an | |
405 | enqueue command it inserts a plug into the outbound queue that | |
406 | causes following packets to enqueue until a dequeue command arrives | |
407 | over netlink, causing the plug to be removed and resuming the normal | |
408 | packet flow. | |
409 | ||
410 | This module also provides a generic "network output buffering" | |
411 | functionality (aka output commit), wherein upon arrival of a dequeue | |
412 | command, only packets up to the first plug are released for delivery. | |
413 | The Remus HA project uses this module to enable speculative execution | |
414 | of virtual machines by allowing the generated network output to be rolled | |
415 | back if needed. | |
416 | ||
5d330cdd | 417 | For more information, please refer to <http://wiki.xenproject.org/wiki/Remus> |
c3059be1 SR |
418 | |
419 | Say Y here if you are using this kernel for Xen dom0 and | |
420 | want to protect Xen guests with Remus. | |
421 | ||
422 | To compile this code as a module, choose M here: the | |
423 | module will be called sch_plug. | |
424 | ||
dcc68b4d PM |
425 | config NET_SCH_ETS |
426 | tristate "Enhanced transmission selection scheduler (ETS)" | |
427 | help | |
428 | The Enhanced Transmission Selection scheduler is a classful | |
429 | queuing discipline that merges functionality of PRIO and DRR | |
430 | qdiscs in one scheduler. ETS makes it easy to configure a set of | |
431 | strict and bandwidth-sharing bands to implement the transmission | |
432 | selection described in 802.1Qaz. | |
433 | ||
434 | Say Y here if you want to use the ETS packet scheduling | |
435 | algorithm. | |
436 | ||
437 | To compile this driver as a module, choose M here: the module | |
438 | will be called sch_ets. | |
439 | ||
440 | If unsure, say N. | |
441 | ||
8ea3e439 | 442 | menuconfig NET_SCH_DEFAULT |
443 | bool "Allow override default queue discipline" | |
a7f7f624 | 444 | help |
8ea3e439 | 445 | Support for selection of default queuing discipline. |
446 | ||
447 | Nearly all users can safely say no here, and the default | |
448 | of pfifo_fast will be used. Many distributions already set | |
449 | the default value via /proc/sys/net/core/default_qdisc. | |
450 | ||
451 | If unsure, say N. | |
452 | ||
453 | if NET_SCH_DEFAULT | |
454 | ||
455 | choice | |
456 | prompt "Default queuing discipline" | |
457 | default DEFAULT_PFIFO_FAST | |
458 | help | |
459 | Select the queueing discipline that will be used by default | |
460 | for all network devices. | |
461 | ||
462 | config DEFAULT_FQ | |
463 | bool "Fair Queue" if NET_SCH_FQ | |
464 | ||
465 | config DEFAULT_CODEL | |
466 | bool "Controlled Delay" if NET_SCH_CODEL | |
467 | ||
468 | config DEFAULT_FQ_CODEL | |
469 | bool "Fair Queue Controlled Delay" if NET_SCH_FQ_CODEL | |
470 | ||
b97e9d9d DL |
471 | config DEFAULT_FQ_PIE |
472 | bool "Flow Queue Proportional Integral controller Enhanced" if NET_SCH_FQ_PIE | |
473 | ||
8ea3e439 | 474 | config DEFAULT_SFQ |
475 | bool "Stochastic Fair Queue" if NET_SCH_SFQ | |
476 | ||
477 | config DEFAULT_PFIFO_FAST | |
478 | bool "Priority FIFO Fast" | |
479 | endchoice | |
480 | ||
481 | config DEFAULT_NET_SCH | |
482 | string | |
483 | default "pfifo_fast" if DEFAULT_PFIFO_FAST | |
484 | default "fq" if DEFAULT_FQ | |
485 | default "fq_codel" if DEFAULT_FQ_CODEL | |
b97e9d9d | 486 | default "fq_pie" if DEFAULT_FQ_PIE |
8ea3e439 | 487 | default "sfq" if DEFAULT_SFQ |
488 | default "pfifo_fast" | |
489 | endif | |
490 | ||
52ab4ac2 | 491 | comment "Classification" |
1da177e4 LT |
492 | |
493 | config NET_CLS | |
6341e62b | 494 | bool |
1da177e4 LT |
495 | |
496 | config NET_CLS_BASIC | |
52ab4ac2 | 497 | tristate "Elementary classification (BASIC)" |
52ab4ac2 | 498 | select NET_CLS |
a7f7f624 | 499 | help |
1da177e4 LT |
500 | Say Y here if you want to be able to classify packets using |
501 | only extended matches and actions. | |
502 | ||
503 | To compile this code as a module, choose M here: the | |
504 | module will be called cls_basic. | |
505 | ||
506 | config NET_CLS_TCINDEX | |
52ab4ac2 | 507 | tristate "Traffic-Control Index (TCINDEX)" |
52ab4ac2 | 508 | select NET_CLS |
a7f7f624 | 509 | help |
52ab4ac2 TG |
510 | Say Y here if you want to be able to classify packets based on |
511 | traffic control indices. You will want this feature if you want | |
512 | to implement Differentiated Services together with DSMARK. | |
1da177e4 LT |
513 | |
514 | To compile this code as a module, choose M here: the | |
515 | module will be called cls_tcindex. | |
516 | ||
517 | config NET_CLS_ROUTE4 | |
52ab4ac2 | 518 | tristate "Routing decision (ROUTE)" |
034cfe48 | 519 | depends on INET |
c7066f70 | 520 | select IP_ROUTE_CLASSID |
52ab4ac2 | 521 | select NET_CLS |
a7f7f624 | 522 | help |
52ab4ac2 TG |
523 | If you say Y here, you will be able to classify packets |
524 | according to the route table entry they matched. | |
1da177e4 LT |
525 | |
526 | To compile this code as a module, choose M here: the | |
527 | module will be called cls_route. | |
528 | ||
1da177e4 | 529 | config NET_CLS_FW |
52ab4ac2 | 530 | tristate "Netfilter mark (FW)" |
52ab4ac2 | 531 | select NET_CLS |
a7f7f624 | 532 | help |
52ab4ac2 TG |
533 | If you say Y here, you will be able to classify packets |
534 | according to netfilter/firewall marks. | |
1da177e4 LT |
535 | |
536 | To compile this code as a module, choose M here: the | |
537 | module will be called cls_fw. | |
538 | ||
539 | config NET_CLS_U32 | |
52ab4ac2 | 540 | tristate "Universal 32bit comparisons w/ hashing (U32)" |
52ab4ac2 | 541 | select NET_CLS |
a7f7f624 | 542 | help |
3539c272 | 543 | Say Y here to be able to classify packets using a universal |
52ab4ac2 | 544 | 32bit pieces based comparison scheme. |
1da177e4 LT |
545 | |
546 | To compile this code as a module, choose M here: the | |
547 | module will be called cls_u32. | |
548 | ||
549 | config CLS_U32_PERF | |
52ab4ac2 | 550 | bool "Performance counters support" |
1da177e4 | 551 | depends on NET_CLS_U32 |
a7f7f624 | 552 | help |
52ab4ac2 TG |
553 | Say Y here to make u32 gather additional statistics useful for |
554 | fine tuning u32 classifiers. | |
1da177e4 LT |
555 | |
556 | config CLS_U32_MARK | |
52ab4ac2 | 557 | bool "Netfilter marks support" |
82e91ffe | 558 | depends on NET_CLS_U32 |
a7f7f624 | 559 | help |
52ab4ac2 | 560 | Say Y here to be able to use netfilter marks as u32 key. |
1da177e4 LT |
561 | |
562 | config NET_CLS_RSVP | |
52ab4ac2 | 563 | tristate "IPv4 Resource Reservation Protocol (RSVP)" |
52ab4ac2 | 564 | select NET_CLS |
a7f7f624 | 565 | help |
1da177e4 LT |
566 | The Resource Reservation Protocol (RSVP) permits end systems to |
567 | request a minimum and maximum data flow rate for a connection; this | |
568 | is important for real time data such as streaming sound or video. | |
569 | ||
570 | Say Y here if you want to be able to classify outgoing packets based | |
571 | on their RSVP requests. | |
572 | ||
573 | To compile this code as a module, choose M here: the | |
574 | module will be called cls_rsvp. | |
575 | ||
576 | config NET_CLS_RSVP6 | |
52ab4ac2 | 577 | tristate "IPv6 Resource Reservation Protocol (RSVP6)" |
52ab4ac2 | 578 | select NET_CLS |
a7f7f624 | 579 | help |
1da177e4 LT |
580 | The Resource Reservation Protocol (RSVP) permits end systems to |
581 | request a minimum and maximum data flow rate for a connection; this | |
582 | is important for real time data such as streaming sound or video. | |
583 | ||
584 | Say Y here if you want to be able to classify outgoing packets based | |
99acaeb9 | 585 | on their RSVP requests and you are using the IPv6 protocol. |
1da177e4 LT |
586 | |
587 | To compile this code as a module, choose M here: the | |
588 | module will be called cls_rsvp6. | |
589 | ||
e5dfb815 PM |
590 | config NET_CLS_FLOW |
591 | tristate "Flow classifier" | |
592 | select NET_CLS | |
a7f7f624 | 593 | help |
e5dfb815 PM |
594 | If you say Y here, you will be able to classify packets based on |
595 | a configurable combination of packet keys. This is mostly useful | |
596 | in combination with SFQ. | |
597 | ||
598 | To compile this code as a module, choose M here: the | |
599 | module will be called cls_flow. | |
600 | ||
f4009237 | 601 | config NET_CLS_CGROUP |
8e039d84 | 602 | tristate "Control Group Classifier" |
f4009237 | 603 | select NET_CLS |
fe1217c4 | 604 | select CGROUP_NET_CLASSID |
f4009237 | 605 | depends on CGROUPS |
a7f7f624 | 606 | help |
f4009237 TG |
607 | Say Y here if you want to classify packets based on the control |
608 | cgroup of their process. | |
609 | ||
8e039d84 BB |
610 | To compile this code as a module, choose M here: the |
611 | module will be called cls_cgroup. | |
612 | ||
7d1d65cb DB |
613 | config NET_CLS_BPF |
614 | tristate "BPF-based classifier" | |
615 | select NET_CLS | |
a7f7f624 | 616 | help |
7d1d65cb DB |
617 | If you say Y here, you will be able to classify packets based on |
618 | programmable BPF (JIT'ed) filters as an alternative to ematches. | |
619 | ||
620 | To compile this code as a module, choose M here: the module will | |
621 | be called cls_bpf. | |
622 | ||
77b9900e JP |
623 | config NET_CLS_FLOWER |
624 | tristate "Flower classifier" | |
625 | select NET_CLS | |
a7f7f624 | 626 | help |
77b9900e JP |
627 | If you say Y here, you will be able to classify packets based on |
628 | a configurable combination of packet keys and masks. | |
629 | ||
630 | To compile this code as a module, choose M here: the module will | |
631 | be called cls_flower. | |
632 | ||
bf3994d2 JP |
633 | config NET_CLS_MATCHALL |
634 | tristate "Match-all classifier" | |
635 | select NET_CLS | |
a7f7f624 | 636 | help |
bf3994d2 JP |
637 | If you say Y here, you will be able to classify packets based on |
638 | nothing. Every packet will match. | |
639 | ||
640 | To compile this code as a module, choose M here: the module will | |
641 | be called cls_matchall. | |
642 | ||
1da177e4 LT |
643 | config NET_EMATCH |
644 | bool "Extended Matches" | |
52ab4ac2 | 645 | select NET_CLS |
a7f7f624 | 646 | help |
1da177e4 LT |
647 | Say Y here if you want to use extended matches on top of classifiers |
648 | and select the extended matches below. | |
649 | ||
650 | Extended matches are small classification helpers not worth writing | |
52ab4ac2 | 651 | a separate classifier for. |
1da177e4 | 652 | |
52ab4ac2 | 653 | A recent version of the iproute2 package is required to use |
1da177e4 LT |
654 | extended matches. |
655 | ||
656 | config NET_EMATCH_STACK | |
657 | int "Stack size" | |
658 | depends on NET_EMATCH | |
659 | default "32" | |
a7f7f624 | 660 | help |
1da177e4 LT |
661 | Size of the local stack variable used while evaluating the tree of |
662 | ematches. Limits the depth of the tree, i.e. the number of | |
b824979a | 663 | encapsulated precedences. Every level requires 4 bytes of additional |
1da177e4 LT |
664 | stack space. |
665 | ||
666 | config NET_EMATCH_CMP | |
667 | tristate "Simple packet data comparison" | |
668 | depends on NET_EMATCH | |
a7f7f624 | 669 | help |
1da177e4 LT |
670 | Say Y here if you want to be able to classify packets based on |
671 | simple packet data comparisons for 8, 16, and 32bit values. | |
672 | ||
673 | To compile this code as a module, choose M here: the | |
674 | module will be called em_cmp. | |
675 | ||
676 | config NET_EMATCH_NBYTE | |
677 | tristate "Multi byte comparison" | |
678 | depends on NET_EMATCH | |
a7f7f624 | 679 | help |
1da177e4 LT |
680 | Say Y here if you want to be able to classify packets based on |
681 | multiple byte comparisons mainly useful for IPv6 address comparisons. | |
682 | ||
683 | To compile this code as a module, choose M here: the | |
684 | module will be called em_nbyte. | |
685 | ||
686 | config NET_EMATCH_U32 | |
52ab4ac2 | 687 | tristate "U32 key" |
1da177e4 | 688 | depends on NET_EMATCH |
a7f7f624 | 689 | help |
1da177e4 LT |
690 | Say Y here if you want to be able to classify packets using |
691 | the famous u32 key in combination with logic relations. | |
692 | ||
693 | To compile this code as a module, choose M here: the | |
694 | module will be called em_u32. | |
695 | ||
696 | config NET_EMATCH_META | |
697 | tristate "Metadata" | |
698 | depends on NET_EMATCH | |
a7f7f624 | 699 | help |
bb7e8c5a | 700 | Say Y here if you want to be able to classify packets based on |
1da177e4 LT |
701 | metadata such as load average, netfilter attributes, socket |
702 | attributes and routing decisions. | |
703 | ||
704 | To compile this code as a module, choose M here: the | |
705 | module will be called em_meta. | |
706 | ||
d675c989 TG |
707 | config NET_EMATCH_TEXT |
708 | tristate "Textsearch" | |
709 | depends on NET_EMATCH | |
f2d368fa | 710 | select TEXTSEARCH |
f7704347 | 711 | select TEXTSEARCH_KMP |
29cb9f9c | 712 | select TEXTSEARCH_BM |
f7704347 | 713 | select TEXTSEARCH_FSM |
a7f7f624 | 714 | help |
52ab4ac2 | 715 | Say Y here if you want to be able to classify packets based on |
f7704347 | 716 | textsearch comparisons. |
d675c989 TG |
717 | |
718 | To compile this code as a module, choose M here: the | |
719 | module will be called em_text. | |
720 | ||
f057bbb6 RL |
721 | config NET_EMATCH_CANID |
722 | tristate "CAN Identifier" | |
a303fbf3 | 723 | depends on NET_EMATCH && (CAN=y || CAN=m) |
a7f7f624 | 724 | help |
f057bbb6 RL |
725 | Say Y here if you want to be able to classify CAN frames based |
726 | on CAN Identifier. | |
727 | ||
728 | To compile this code as a module, choose M here: the | |
729 | module will be called em_canid. | |
730 | ||
6d4fa852 FW |
731 | config NET_EMATCH_IPSET |
732 | tristate "IPset" | |
733 | depends on NET_EMATCH && IP_SET | |
a7f7f624 | 734 | help |
6d4fa852 FW |
735 | Say Y here if you want to be able to classify packets based on |
736 | ipset membership. | |
737 | ||
738 | To compile this code as a module, choose M here: the | |
739 | module will be called em_ipset. | |
740 | ||
ccc007e4 EB |
741 | config NET_EMATCH_IPT |
742 | tristate "IPtables Matches" | |
743 | depends on NET_EMATCH && NETFILTER && NETFILTER_XTABLES | |
a7f7f624 | 744 | help |
ccc007e4 EB |
745 | Say Y here to be able to classify packets based on iptables |
746 | matches. | |
747 | Current supported match is "policy" which allows packet classification | |
748 | based on IPsec policy that was used during decapsulation | |
749 | ||
750 | To compile this code as a module, choose M here: the | |
751 | module will be called em_ipt. | |
752 | ||
1da177e4 | 753 | config NET_CLS_ACT |
52ab4ac2 | 754 | bool "Actions" |
8ec1507d | 755 | select NET_CLS |
a7f7f624 | 756 | help |
52ab4ac2 TG |
757 | Say Y here if you want to use traffic control actions. Actions |
758 | get attached to classifiers and are invoked after a successful | |
759 | classification. They are used to overwrite the classification | |
760 | result, instantly drop or redirect packets, etc. | |
761 | ||
762 | A recent version of the iproute2 package is required to use | |
763 | extended matches. | |
1da177e4 LT |
764 | |
765 | config NET_ACT_POLICE | |
52ab4ac2 | 766 | tristate "Traffic Policing" |
bf69abad | 767 | depends on NET_CLS_ACT |
a7f7f624 | 768 | help |
52ab4ac2 TG |
769 | Say Y here if you want to do traffic policing, i.e. strict |
770 | bandwidth limiting. This action replaces the existing policing | |
771 | module. | |
772 | ||
773 | To compile this code as a module, choose M here: the | |
d4ae20b3 | 774 | module will be called act_police. |
1da177e4 LT |
775 | |
776 | config NET_ACT_GACT | |
bf69abad KK |
777 | tristate "Generic actions" |
778 | depends on NET_CLS_ACT | |
a7f7f624 | 779 | help |
52ab4ac2 TG |
780 | Say Y here to take generic actions such as dropping and |
781 | accepting packets. | |
782 | ||
783 | To compile this code as a module, choose M here: the | |
d4ae20b3 | 784 | module will be called act_gact. |
1da177e4 LT |
785 | |
786 | config GACT_PROB | |
bf69abad KK |
787 | bool "Probability support" |
788 | depends on NET_ACT_GACT | |
a7f7f624 | 789 | help |
52ab4ac2 | 790 | Say Y here to use the generic action randomly or deterministically. |
1da177e4 LT |
791 | |
792 | config NET_ACT_MIRRED | |
bf69abad KK |
793 | tristate "Redirecting and Mirroring" |
794 | depends on NET_CLS_ACT | |
a7f7f624 | 795 | help |
52ab4ac2 TG |
796 | Say Y here to allow packets to be mirrored or redirected to |
797 | other devices. | |
798 | ||
799 | To compile this code as a module, choose M here: the | |
d4ae20b3 | 800 | module will be called act_mirred. |
1da177e4 | 801 | |
5c5670fa | 802 | config NET_ACT_SAMPLE |
bf69abad KK |
803 | tristate "Traffic Sampling" |
804 | depends on NET_CLS_ACT | |
805 | select PSAMPLE | |
a7f7f624 | 806 | help |
5c5670fa YG |
807 | Say Y here to allow packet sampling tc action. The packet sample |
808 | action consists of statistically choosing packets and sampling | |
809 | them using the psample module. | |
810 | ||
811 | To compile this code as a module, choose M here: the | |
812 | module will be called act_sample. | |
813 | ||
1da177e4 | 814 | config NET_ACT_IPT |
bf69abad KK |
815 | tristate "IPtables targets" |
816 | depends on NET_CLS_ACT && NETFILTER && IP_NF_IPTABLES | |
a7f7f624 | 817 | help |
3539c272 | 818 | Say Y here to be able to invoke iptables targets after successful |
52ab4ac2 TG |
819 | classification. |
820 | ||
821 | To compile this code as a module, choose M here: the | |
d4ae20b3 | 822 | module will be called act_ipt. |
1da177e4 | 823 | |
b4219952 | 824 | config NET_ACT_NAT |
bf69abad KK |
825 | tristate "Stateless NAT" |
826 | depends on NET_CLS_ACT | |
a7f7f624 | 827 | help |
b4219952 HX |
828 | Say Y here to do stateless NAT on IPv4 packets. You should use |
829 | netfilter for NAT unless you know what you are doing. | |
830 | ||
831 | To compile this code as a module, choose M here: the | |
d4ae20b3 | 832 | module will be called act_nat. |
b4219952 | 833 | |
1da177e4 | 834 | config NET_ACT_PEDIT |
bf69abad KK |
835 | tristate "Packet Editing" |
836 | depends on NET_CLS_ACT | |
a7f7f624 | 837 | help |
52ab4ac2 | 838 | Say Y here if you want to mangle the content of packets. |
1da177e4 | 839 | |
52ab4ac2 | 840 | To compile this code as a module, choose M here: the |
d4ae20b3 | 841 | module will be called act_pedit. |
1da177e4 | 842 | |
db753079 | 843 | config NET_ACT_SIMP |
bf69abad KK |
844 | tristate "Simple Example (Debug)" |
845 | depends on NET_CLS_ACT | |
a7f7f624 | 846 | help |
52ab4ac2 TG |
847 | Say Y here to add a simple action for demonstration purposes. |
848 | It is meant as an example and for debugging purposes. It will | |
849 | print a configured policy string followed by the packet count | |
850 | to the console for every packet that passes by. | |
851 | ||
852 | If unsure, say N. | |
853 | ||
854 | To compile this code as a module, choose M here: the | |
d4ae20b3 | 855 | module will be called act_simple. |
52ab4ac2 | 856 | |
ca9b0e27 | 857 | config NET_ACT_SKBEDIT |
bf69abad KK |
858 | tristate "SKB Editing" |
859 | depends on NET_CLS_ACT | |
a7f7f624 | 860 | help |
ca9b0e27 AD |
861 | Say Y here to change skb priority or queue_mapping settings. |
862 | ||
863 | If unsure, say N. | |
864 | ||
865 | To compile this code as a module, choose M here: the | |
d4ae20b3 | 866 | module will be called act_skbedit. |
ca9b0e27 | 867 | |
eb4d4065 | 868 | config NET_ACT_CSUM |
bf69abad KK |
869 | tristate "Checksum Updating" |
870 | depends on NET_CLS_ACT && INET | |
871 | select LIBCRC32C | |
a7f7f624 | 872 | help |
eb4d4065 GB |
873 | Say Y here to update some common checksum after some direct |
874 | packet alterations. | |
875 | ||
876 | To compile this code as a module, choose M here: the | |
877 | module will be called act_csum. | |
878 | ||
2a2ea508 JH |
879 | config NET_ACT_MPLS |
880 | tristate "MPLS manipulation" | |
881 | depends on NET_CLS_ACT | |
882 | help | |
883 | Say Y here to push or pop MPLS headers. | |
884 | ||
885 | If unsure, say N. | |
886 | ||
887 | To compile this code as a module, choose M here: the | |
888 | module will be called act_mpls. | |
889 | ||
c7e2b968 | 890 | config NET_ACT_VLAN |
bf69abad KK |
891 | tristate "Vlan manipulation" |
892 | depends on NET_CLS_ACT | |
a7f7f624 | 893 | help |
c7e2b968 JP |
894 | Say Y here to push or pop vlan headers. |
895 | ||
896 | If unsure, say N. | |
897 | ||
898 | To compile this code as a module, choose M here: the | |
899 | module will be called act_vlan. | |
900 | ||
d23b8ad8 | 901 | config NET_ACT_BPF |
bf69abad KK |
902 | tristate "BPF based action" |
903 | depends on NET_CLS_ACT | |
a7f7f624 | 904 | help |
d23b8ad8 JP |
905 | Say Y here to execute BPF code on packets. The BPF code will decide |
906 | if the packet should be dropped or not. | |
907 | ||
908 | If unsure, say N. | |
909 | ||
910 | To compile this code as a module, choose M here: the | |
911 | module will be called act_bpf. | |
912 | ||
22a5dc0e | 913 | config NET_ACT_CONNMARK |
bf69abad KK |
914 | tristate "Netfilter Connection Mark Retriever" |
915 | depends on NET_CLS_ACT && NETFILTER && IP_NF_IPTABLES | |
916 | depends on NF_CONNTRACK && NF_CONNTRACK_MARK | |
a7f7f624 | 917 | help |
22a5dc0e FF |
918 | Say Y here to allow retrieving of conn mark |
919 | ||
920 | If unsure, say N. | |
921 | ||
922 | To compile this code as a module, choose M here: the | |
923 | module will be called act_connmark. | |
924 | ||
24ec483c | 925 | config NET_ACT_CTINFO |
bf69abad KK |
926 | tristate "Netfilter Connection Mark Actions" |
927 | depends on NET_CLS_ACT && NETFILTER && IP_NF_IPTABLES | |
928 | depends on NF_CONNTRACK && NF_CONNTRACK_MARK | |
929 | help | |
24ec483c KDB |
930 | Say Y here to allow transfer of a connmark stored information. |
931 | Current actions transfer connmark stored DSCP into | |
932 | ipv4/v6 diffserv and/or to transfer connmark to packet | |
933 | mark. Both are useful for restoring egress based marks | |
934 | back onto ingress connections for qdisc priority mapping | |
935 | purposes. | |
936 | ||
937 | If unsure, say N. | |
938 | ||
939 | To compile this code as a module, choose M here: the | |
940 | module will be called act_ctinfo. | |
941 | ||
86da71b5 | 942 | config NET_ACT_SKBMOD |
bf69abad KK |
943 | tristate "skb data modification action" |
944 | depends on NET_CLS_ACT | |
a7f7f624 | 945 | help |
bf69abad | 946 | Say Y here to allow modification of skb data |
86da71b5 | 947 | |
bf69abad | 948 | If unsure, say N. |
86da71b5 | 949 | |
bf69abad KK |
950 | To compile this code as a module, choose M here: the |
951 | module will be called act_skbmod. | |
86da71b5 | 952 | |
ef6980b6 | 953 | config NET_ACT_IFE |
bf69abad KK |
954 | tristate "Inter-FE action based on IETF ForCES InterFE LFB" |
955 | depends on NET_CLS_ACT | |
956 | select NET_IFE | |
a7f7f624 | 957 | help |
ef6980b6 JHS |
958 | Say Y here to allow for sourcing and terminating metadata |
959 | For details refer to netdev01 paper: | |
960 | "Distributing Linux Traffic Control Classifier-Action Subsystem" | |
961 | Authors: Jamal Hadi Salim and Damascene M. Joachimpillai | |
962 | ||
963 | To compile this code as a module, choose M here: the | |
964 | module will be called act_ife. | |
965 | ||
d0f6dd8a | 966 | config NET_ACT_TUNNEL_KEY |
bf69abad KK |
967 | tristate "IP tunnel metadata manipulation" |
968 | depends on NET_CLS_ACT | |
a7f7f624 | 969 | help |
d0f6dd8a AV |
970 | Say Y here to set/release ip tunnel metadata. |
971 | ||
972 | If unsure, say N. | |
973 | ||
974 | To compile this code as a module, choose M here: the | |
975 | module will be called act_tunnel_key. | |
976 | ||
b57dc7c1 | 977 | config NET_ACT_CT |
bf69abad | 978 | tristate "connection tracking tc action" |
c34b961a | 979 | depends on NET_CLS_ACT && NF_CONNTRACK && NF_NAT && NF_FLOW_TABLE |
bf69abad | 980 | help |
b57dc7c1 PB |
981 | Say Y here to allow sending the packets to conntrack module. |
982 | ||
983 | If unsure, say N. | |
984 | ||
985 | To compile this code as a module, choose M here: the | |
986 | module will be called act_ct. | |
987 | ||
a51c328d PL |
988 | config NET_ACT_GATE |
989 | tristate "Frame gate entry list control tc action" | |
990 | depends on NET_CLS_ACT | |
991 | help | |
992 | Say Y here to allow to control the ingress flow to be passed at | |
993 | specific time slot and be dropped at other specific time slot by | |
994 | the gate entry list. | |
995 | ||
996 | If unsure, say N. | |
997 | To compile this code as a module, choose M here: the | |
998 | module will be called act_gate. | |
999 | ||
084e2f65 | 1000 | config NET_IFE_SKBMARK |
bf69abad KK |
1001 | tristate "Support to encoding decoding skb mark on IFE action" |
1002 | depends on NET_ACT_IFE | |
084e2f65 | 1003 | |
200e10f4 | 1004 | config NET_IFE_SKBPRIO |
bf69abad KK |
1005 | tristate "Support to encoding decoding skb prio on IFE action" |
1006 | depends on NET_ACT_IFE | |
200e10f4 | 1007 | |
408fbc22 | 1008 | config NET_IFE_SKBTCINDEX |
bf69abad KK |
1009 | tristate "Support to encoding decoding skb tcindex on IFE action" |
1010 | depends on NET_ACT_IFE | |
408fbc22 | 1011 | |
95a7233c PB |
1012 | config NET_TC_SKB_EXT |
1013 | bool "TC recirculation support" | |
1014 | depends on NET_CLS_ACT | |
95a7233c PB |
1015 | select SKB_EXTENSIONS |
1016 | ||
1017 | help | |
1018 | Say Y here to allow tc chain misses to continue in OvS datapath in | |
1019 | the correct recirc_id, and hardware chain misses to continue in | |
1020 | the correct chain in tc software datapath. | |
1021 | ||
1022 | Say N here if you won't be using tc<->ovs offload or tc chains offload. | |
1023 | ||
05b8b0fa RZ |
1024 | endif # NET_SCHED |
1025 | ||
85ef3e5c RD |
1026 | config NET_SCH_FIFO |
1027 | bool |