Commit | Line | Data |
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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_HTB |
52ab4ac2 | 49 | tristate "Hierarchical Token Bucket (HTB)" |
a7f7f624 | 50 | help |
1da177e4 | 51 | Say Y here if you want to use the Hierarchical Token Buckets (HTB) |
52ab4ac2 | 52 | packet scheduling algorithm. See |
1da177e4 LT |
53 | <http://luxik.cdi.cz/~devik/qos/htb/> for complete manual and |
54 | in-depth articles. | |
55 | ||
52ab4ac2 | 56 | HTB is very similar to CBQ regarding its goals however is has |
1da177e4 LT |
57 | different properties and different algorithm. |
58 | ||
59 | To compile this code as a module, choose M here: the | |
60 | module will be called sch_htb. | |
61 | ||
62 | config NET_SCH_HFSC | |
52ab4ac2 | 63 | tristate "Hierarchical Fair Service Curve (HFSC)" |
a7f7f624 | 64 | help |
1da177e4 | 65 | Say Y here if you want to use the Hierarchical Fair Service Curve |
52ab4ac2 | 66 | (HFSC) packet scheduling algorithm. |
1da177e4 LT |
67 | |
68 | To compile this code as a module, choose M here: the | |
69 | module will be called sch_hfsc. | |
70 | ||
1da177e4 | 71 | config NET_SCH_PRIO |
52ab4ac2 | 72 | tristate "Multi Band Priority Queueing (PRIO)" |
a7f7f624 | 73 | help |
1da177e4 | 74 | Say Y here if you want to use an n-band priority queue packet |
52ab4ac2 | 75 | scheduler. |
1da177e4 LT |
76 | |
77 | To compile this code as a module, choose M here: the | |
78 | module will be called sch_prio. | |
79 | ||
92651940 AD |
80 | config NET_SCH_MULTIQ |
81 | tristate "Hardware Multiqueue-aware Multi Band Queuing (MULTIQ)" | |
a7f7f624 | 82 | help |
92651940 AD |
83 | Say Y here if you want to use an n-band queue packet scheduler |
84 | to support devices that have multiple hardware transmit queues. | |
85 | ||
86 | To compile this code as a module, choose M here: the | |
87 | module will be called sch_multiq. | |
88 | ||
1da177e4 | 89 | config NET_SCH_RED |
52ab4ac2 | 90 | tristate "Random Early Detection (RED)" |
a7f7f624 | 91 | help |
1da177e4 | 92 | Say Y here if you want to use the Random Early Detection (RED) |
52ab4ac2 TG |
93 | packet scheduling algorithm. |
94 | ||
95 | See the top of <file:net/sched/sch_red.c> for more details. | |
1da177e4 LT |
96 | |
97 | To compile this code as a module, choose M here: the | |
98 | module will be called sch_red. | |
99 | ||
e13e02a3 ED |
100 | config NET_SCH_SFB |
101 | tristate "Stochastic Fair Blue (SFB)" | |
a7f7f624 | 102 | help |
e13e02a3 ED |
103 | Say Y here if you want to use the Stochastic Fair Blue (SFB) |
104 | packet scheduling algorithm. | |
105 | ||
106 | See the top of <file:net/sched/sch_sfb.c> for more details. | |
107 | ||
108 | To compile this code as a module, choose M here: the | |
109 | module will be called sch_sfb. | |
110 | ||
1da177e4 | 111 | config NET_SCH_SFQ |
52ab4ac2 | 112 | tristate "Stochastic Fairness Queueing (SFQ)" |
a7f7f624 | 113 | help |
1da177e4 | 114 | Say Y here if you want to use the Stochastic Fairness Queueing (SFQ) |
99acaeb9 | 115 | packet scheduling algorithm. |
52ab4ac2 TG |
116 | |
117 | See the top of <file:net/sched/sch_sfq.c> for more details. | |
1da177e4 LT |
118 | |
119 | To compile this code as a module, choose M here: the | |
120 | module will be called sch_sfq. | |
121 | ||
122 | config NET_SCH_TEQL | |
52ab4ac2 | 123 | tristate "True Link Equalizer (TEQL)" |
a7f7f624 | 124 | help |
1da177e4 | 125 | Say Y here if you want to use the True Link Equalizer (TLE) packet |
52ab4ac2 TG |
126 | scheduling algorithm. This queueing discipline allows the combination |
127 | of several physical devices into one virtual device. | |
128 | ||
129 | See the top of <file:net/sched/sch_teql.c> for more details. | |
1da177e4 LT |
130 | |
131 | To compile this code as a module, choose M here: the | |
132 | module will be called sch_teql. | |
133 | ||
134 | config NET_SCH_TBF | |
52ab4ac2 | 135 | tristate "Token Bucket Filter (TBF)" |
a7f7f624 | 136 | help |
52ab4ac2 TG |
137 | Say Y here if you want to use the Token Bucket Filter (TBF) packet |
138 | scheduling algorithm. | |
139 | ||
140 | See the top of <file:net/sched/sch_tbf.c> for more details. | |
1da177e4 LT |
141 | |
142 | To compile this code as a module, choose M here: the | |
143 | module will be called sch_tbf. | |
144 | ||
585d763a VCG |
145 | config NET_SCH_CBS |
146 | tristate "Credit Based Shaper (CBS)" | |
a7f7f624 | 147 | help |
585d763a VCG |
148 | Say Y here if you want to use the Credit Based Shaper (CBS) packet |
149 | scheduling algorithm. | |
150 | ||
151 | See the top of <file:net/sched/sch_cbs.c> for more details. | |
152 | ||
153 | To compile this code as a module, choose M here: the | |
154 | module will be called sch_cbs. | |
25db26a9 VCG |
155 | |
156 | config NET_SCH_ETF | |
157 | tristate "Earliest TxTime First (ETF)" | |
158 | help | |
159 | Say Y here if you want to use the Earliest TxTime First (ETF) packet | |
160 | scheduling algorithm. | |
161 | ||
162 | See the top of <file:net/sched/sch_etf.c> for more details. | |
163 | ||
164 | To compile this code as a module, choose M here: the | |
165 | module will be called sch_etf. | |
585d763a | 166 | |
1dfe086d VO |
167 | config NET_SCH_MQPRIO_LIB |
168 | tristate | |
169 | help | |
170 | Common library for manipulating mqprio queue configurations. | |
171 | ||
5a781ccb VCG |
172 | config NET_SCH_TAPRIO |
173 | tristate "Time Aware Priority (taprio) Scheduler" | |
1dfe086d | 174 | select NET_SCH_MQPRIO_LIB |
5a781ccb VCG |
175 | help |
176 | Say Y here if you want to use the Time Aware Priority (taprio) packet | |
177 | scheduling algorithm. | |
178 | ||
179 | See the top of <file:net/sched/sch_taprio.c> for more details. | |
180 | ||
181 | To compile this code as a module, choose M here: the | |
182 | module will be called sch_taprio. | |
183 | ||
1da177e4 | 184 | config NET_SCH_GRED |
52ab4ac2 | 185 | tristate "Generic Random Early Detection (GRED)" |
a7f7f624 | 186 | help |
1da177e4 | 187 | Say Y here if you want to use the Generic Random Early Detection |
20cc6bef | 188 | (GRED) packet scheduling algorithm for some of your network devices |
1da177e4 LT |
189 | (see the top of <file:net/sched/sch_red.c> for details and |
190 | references about the algorithm). | |
191 | ||
192 | To compile this code as a module, choose M here: the | |
193 | module will be called sch_gred. | |
194 | ||
1da177e4 | 195 | config NET_SCH_NETEM |
52ab4ac2 | 196 | tristate "Network emulator (NETEM)" |
a7f7f624 | 197 | help |
1da177e4 LT |
198 | Say Y if you want to emulate network delay, loss, and packet |
199 | re-ordering. This is often useful to simulate networks when | |
200 | testing applications or protocols. | |
201 | ||
202 | To compile this driver as a module, choose M here: the module | |
203 | will be called sch_netem. | |
204 | ||
205 | If unsure, say N. | |
206 | ||
13d2a1d2 PM |
207 | config NET_SCH_DRR |
208 | tristate "Deficit Round Robin scheduler (DRR)" | |
209 | help | |
210 | Say Y here if you want to use the Deficit Round Robin (DRR) packet | |
211 | scheduling algorithm. | |
212 | ||
213 | To compile this driver as a module, choose M here: the module | |
214 | will be called sch_drr. | |
215 | ||
216 | If unsure, say N. | |
217 | ||
b8970f0b JF |
218 | config NET_SCH_MQPRIO |
219 | tristate "Multi-queue priority scheduler (MQPRIO)" | |
1dfe086d | 220 | select NET_SCH_MQPRIO_LIB |
b8970f0b JF |
221 | help |
222 | Say Y here if you want to use the Multi-queue Priority scheduler. | |
223 | This scheduler allows QOS to be offloaded on NICs that have support | |
224 | for offloading QOS schedulers. | |
225 | ||
226 | To compile this driver as a module, choose M here: the module will | |
227 | be called sch_mqprio. | |
228 | ||
229 | If unsure, say N. | |
230 | ||
aea5f654 ND |
231 | config NET_SCH_SKBPRIO |
232 | tristate "SKB priority queue scheduler (SKBPRIO)" | |
233 | help | |
234 | Say Y here if you want to use the SKB priority queue | |
235 | scheduler. This schedules packets according to skb->priority, | |
236 | which is useful for request packets in DoS mitigation systems such | |
237 | as Gatekeeper. | |
238 | ||
239 | To compile this driver as a module, choose M here: the module will | |
240 | be called sch_skbprio. | |
241 | ||
242 | If unsure, say N. | |
243 | ||
45e14433 | 244 | config NET_SCH_CHOKE |
245 | tristate "CHOose and Keep responsive flow scheduler (CHOKE)" | |
246 | help | |
247 | Say Y here if you want to use the CHOKe packet scheduler (CHOose | |
248 | and Keep for responsive flows, CHOose and Kill for unresponsive | |
8354bcbe | 249 | flows). This is a variation of RED which tries to penalize flows |
45e14433 | 250 | that monopolize the queue. |
251 | ||
252 | To compile this code as a module, choose M here: the | |
253 | module will be called sch_choke. | |
254 | ||
0545a303 | 255 | config NET_SCH_QFQ |
256 | tristate "Quick Fair Queueing scheduler (QFQ)" | |
257 | help | |
258 | Say Y here if you want to use the Quick Fair Queueing Scheduler (QFQ) | |
259 | packet scheduling algorithm. | |
260 | ||
261 | To compile this driver as a module, choose M here: the module | |
262 | will be called sch_qfq. | |
263 | ||
264 | If unsure, say N. | |
265 | ||
76e3cc12 ED |
266 | config NET_SCH_CODEL |
267 | tristate "Controlled Delay AQM (CODEL)" | |
268 | help | |
269 | Say Y here if you want to use the Controlled Delay (CODEL) | |
270 | packet scheduling algorithm. | |
271 | ||
272 | To compile this driver as a module, choose M here: the module | |
273 | will be called sch_codel. | |
274 | ||
275 | If unsure, say N. | |
276 | ||
4b549a2e ED |
277 | config NET_SCH_FQ_CODEL |
278 | tristate "Fair Queue Controlled Delay AQM (FQ_CODEL)" | |
279 | help | |
280 | Say Y here if you want to use the FQ Controlled Delay (FQ_CODEL) | |
281 | packet scheduling algorithm. | |
282 | ||
283 | To compile this driver as a module, choose M here: the module | |
284 | will be called sch_fq_codel. | |
285 | ||
286 | If unsure, say N. | |
287 | ||
046f6fd5 THJ |
288 | config NET_SCH_CAKE |
289 | tristate "Common Applications Kept Enhanced (CAKE)" | |
290 | help | |
291 | Say Y here if you want to use the Common Applications Kept Enhanced | |
bf69abad | 292 | (CAKE) queue management algorithm. |
046f6fd5 THJ |
293 | |
294 | To compile this driver as a module, choose M here: the module | |
295 | will be called sch_cake. | |
296 | ||
297 | If unsure, say N. | |
298 | ||
afe4fd06 ED |
299 | config NET_SCH_FQ |
300 | tristate "Fair Queue" | |
301 | help | |
302 | Say Y here if you want to use the FQ packet scheduling algorithm. | |
303 | ||
304 | FQ does flow separation, and is able to respect pacing requirements | |
6a7a2c18 | 305 | set by TCP stack into sk->sk_pacing_rate (for locally generated |
afe4fd06 ED |
306 | traffic) |
307 | ||
308 | To compile this driver as a module, choose M here: the module | |
309 | will be called sch_fq. | |
310 | ||
311 | If unsure, say N. | |
312 | ||
10239edf TL |
313 | config NET_SCH_HHF |
314 | tristate "Heavy-Hitter Filter (HHF)" | |
315 | help | |
316 | Say Y here if you want to use the Heavy-Hitter Filter (HHF) | |
317 | packet scheduling algorithm. | |
318 | ||
319 | To compile this driver as a module, choose M here: the module | |
320 | will be called sch_hhf. | |
321 | ||
d4b36210 VS |
322 | config NET_SCH_PIE |
323 | tristate "Proportional Integral controller Enhanced (PIE) scheduler" | |
324 | help | |
325 | Say Y here if you want to use the Proportional Integral controller | |
326 | Enhanced scheduler packet scheduling algorithm. | |
1f8389bf | 327 | For more information, please see https://tools.ietf.org/html/rfc8033 |
d4b36210 VS |
328 | |
329 | To compile this driver as a module, choose M here: the module | |
330 | will be called sch_pie. | |
331 | ||
332 | If unsure, say N. | |
333 | ||
ec97ecf1 MT |
334 | config NET_SCH_FQ_PIE |
335 | depends on NET_SCH_PIE | |
336 | tristate "Flow Queue Proportional Integral controller Enhanced (FQ-PIE)" | |
337 | help | |
338 | Say Y here if you want to use the Flow Queue Proportional Integral | |
339 | controller Enhanced (FQ-PIE) packet scheduling algorithm. | |
340 | For more information, please see https://tools.ietf.org/html/rfc8033 | |
341 | ||
342 | To compile this driver as a module, choose M here: the module | |
343 | will be called sch_fq_pie. | |
344 | ||
345 | If unsure, say N. | |
346 | ||
1da177e4 | 347 | config NET_SCH_INGRESS |
1f211a1b | 348 | tristate "Ingress/classifier-action Qdisc" |
72eb7bd2 | 349 | depends on NET_CLS_ACT |
e420bed0 | 350 | select NET_XGRESS |
a7f7f624 | 351 | help |
1f211a1b DB |
352 | Say Y here if you want to use classifiers for incoming and/or outgoing |
353 | packets. This qdisc doesn't do anything else besides running classifiers, | |
354 | which can also have actions attached to them. In case of outgoing packets, | |
355 | classifiers that this qdisc holds are executed in the transmit path | |
356 | before real enqueuing to an egress qdisc happens. | |
357 | ||
1da177e4 LT |
358 | If unsure, say Y. |
359 | ||
1f211a1b DB |
360 | To compile this code as a module, choose M here: the module will be |
361 | called sch_ingress with alias of sch_clsact. | |
1da177e4 | 362 | |
c3059be1 SR |
363 | config NET_SCH_PLUG |
364 | tristate "Plug network traffic until release (PLUG)" | |
a7f7f624 | 365 | help |
c3059be1 SR |
366 | |
367 | This queuing discipline allows userspace to plug/unplug a network | |
368 | output queue, using the netlink interface. When it receives an | |
369 | enqueue command it inserts a plug into the outbound queue that | |
370 | causes following packets to enqueue until a dequeue command arrives | |
371 | over netlink, causing the plug to be removed and resuming the normal | |
372 | packet flow. | |
373 | ||
374 | This module also provides a generic "network output buffering" | |
375 | functionality (aka output commit), wherein upon arrival of a dequeue | |
376 | command, only packets up to the first plug are released for delivery. | |
377 | The Remus HA project uses this module to enable speculative execution | |
378 | of virtual machines by allowing the generated network output to be rolled | |
379 | back if needed. | |
380 | ||
5d330cdd | 381 | For more information, please refer to <http://wiki.xenproject.org/wiki/Remus> |
c3059be1 SR |
382 | |
383 | Say Y here if you are using this kernel for Xen dom0 and | |
384 | want to protect Xen guests with Remus. | |
385 | ||
386 | To compile this code as a module, choose M here: the | |
387 | module will be called sch_plug. | |
388 | ||
dcc68b4d PM |
389 | config NET_SCH_ETS |
390 | tristate "Enhanced transmission selection scheduler (ETS)" | |
391 | help | |
392 | The Enhanced Transmission Selection scheduler is a classful | |
393 | queuing discipline that merges functionality of PRIO and DRR | |
394 | qdiscs in one scheduler. ETS makes it easy to configure a set of | |
395 | strict and bandwidth-sharing bands to implement the transmission | |
396 | selection described in 802.1Qaz. | |
397 | ||
398 | Say Y here if you want to use the ETS packet scheduling | |
399 | algorithm. | |
400 | ||
401 | To compile this driver as a module, choose M here: the module | |
402 | will be called sch_ets. | |
403 | ||
404 | If unsure, say N. | |
405 | ||
8ea3e439 | 406 | menuconfig NET_SCH_DEFAULT |
407 | bool "Allow override default queue discipline" | |
a7f7f624 | 408 | help |
8ea3e439 | 409 | Support for selection of default queuing discipline. |
410 | ||
411 | Nearly all users can safely say no here, and the default | |
412 | of pfifo_fast will be used. Many distributions already set | |
413 | the default value via /proc/sys/net/core/default_qdisc. | |
414 | ||
415 | If unsure, say N. | |
416 | ||
417 | if NET_SCH_DEFAULT | |
418 | ||
419 | choice | |
420 | prompt "Default queuing discipline" | |
421 | default DEFAULT_PFIFO_FAST | |
422 | help | |
423 | Select the queueing discipline that will be used by default | |
424 | for all network devices. | |
425 | ||
426 | config DEFAULT_FQ | |
427 | bool "Fair Queue" if NET_SCH_FQ | |
428 | ||
429 | config DEFAULT_CODEL | |
430 | bool "Controlled Delay" if NET_SCH_CODEL | |
431 | ||
432 | config DEFAULT_FQ_CODEL | |
433 | bool "Fair Queue Controlled Delay" if NET_SCH_FQ_CODEL | |
434 | ||
b97e9d9d DL |
435 | config DEFAULT_FQ_PIE |
436 | bool "Flow Queue Proportional Integral controller Enhanced" if NET_SCH_FQ_PIE | |
437 | ||
8ea3e439 | 438 | config DEFAULT_SFQ |
439 | bool "Stochastic Fair Queue" if NET_SCH_SFQ | |
440 | ||
441 | config DEFAULT_PFIFO_FAST | |
442 | bool "Priority FIFO Fast" | |
443 | endchoice | |
444 | ||
445 | config DEFAULT_NET_SCH | |
446 | string | |
447 | default "pfifo_fast" if DEFAULT_PFIFO_FAST | |
448 | default "fq" if DEFAULT_FQ | |
449 | default "fq_codel" if DEFAULT_FQ_CODEL | |
b97e9d9d | 450 | default "fq_pie" if DEFAULT_FQ_PIE |
8ea3e439 | 451 | default "sfq" if DEFAULT_SFQ |
452 | default "pfifo_fast" | |
453 | endif | |
454 | ||
52ab4ac2 | 455 | comment "Classification" |
1da177e4 LT |
456 | |
457 | config NET_CLS | |
6341e62b | 458 | bool |
1da177e4 LT |
459 | |
460 | config NET_CLS_BASIC | |
52ab4ac2 | 461 | tristate "Elementary classification (BASIC)" |
52ab4ac2 | 462 | select NET_CLS |
a7f7f624 | 463 | help |
1da177e4 LT |
464 | Say Y here if you want to be able to classify packets using |
465 | only extended matches and actions. | |
466 | ||
467 | To compile this code as a module, choose M here: the | |
468 | module will be called cls_basic. | |
469 | ||
1da177e4 | 470 | config NET_CLS_ROUTE4 |
52ab4ac2 | 471 | tristate "Routing decision (ROUTE)" |
034cfe48 | 472 | depends on INET |
c7066f70 | 473 | select IP_ROUTE_CLASSID |
52ab4ac2 | 474 | select NET_CLS |
a7f7f624 | 475 | help |
52ab4ac2 TG |
476 | If you say Y here, you will be able to classify packets |
477 | according to the route table entry they matched. | |
1da177e4 LT |
478 | |
479 | To compile this code as a module, choose M here: the | |
480 | module will be called cls_route. | |
481 | ||
1da177e4 | 482 | config NET_CLS_FW |
52ab4ac2 | 483 | tristate "Netfilter mark (FW)" |
52ab4ac2 | 484 | select NET_CLS |
a7f7f624 | 485 | help |
52ab4ac2 TG |
486 | If you say Y here, you will be able to classify packets |
487 | according to netfilter/firewall marks. | |
1da177e4 LT |
488 | |
489 | To compile this code as a module, choose M here: the | |
490 | module will be called cls_fw. | |
491 | ||
492 | config NET_CLS_U32 | |
52ab4ac2 | 493 | tristate "Universal 32bit comparisons w/ hashing (U32)" |
52ab4ac2 | 494 | select NET_CLS |
a7f7f624 | 495 | help |
3539c272 | 496 | Say Y here to be able to classify packets using a universal |
52ab4ac2 | 497 | 32bit pieces based comparison scheme. |
1da177e4 LT |
498 | |
499 | To compile this code as a module, choose M here: the | |
500 | module will be called cls_u32. | |
501 | ||
502 | config CLS_U32_PERF | |
52ab4ac2 | 503 | bool "Performance counters support" |
1da177e4 | 504 | depends on NET_CLS_U32 |
a7f7f624 | 505 | help |
52ab4ac2 TG |
506 | Say Y here to make u32 gather additional statistics useful for |
507 | fine tuning u32 classifiers. | |
1da177e4 LT |
508 | |
509 | config CLS_U32_MARK | |
52ab4ac2 | 510 | bool "Netfilter marks support" |
82e91ffe | 511 | depends on NET_CLS_U32 |
a7f7f624 | 512 | help |
52ab4ac2 | 513 | Say Y here to be able to use netfilter marks as u32 key. |
1da177e4 | 514 | |
e5dfb815 PM |
515 | config NET_CLS_FLOW |
516 | tristate "Flow classifier" | |
517 | select NET_CLS | |
a7f7f624 | 518 | help |
e5dfb815 PM |
519 | If you say Y here, you will be able to classify packets based on |
520 | a configurable combination of packet keys. This is mostly useful | |
521 | in combination with SFQ. | |
522 | ||
523 | To compile this code as a module, choose M here: the | |
524 | module will be called cls_flow. | |
525 | ||
f4009237 | 526 | config NET_CLS_CGROUP |
8e039d84 | 527 | tristate "Control Group Classifier" |
f4009237 | 528 | select NET_CLS |
fe1217c4 | 529 | select CGROUP_NET_CLASSID |
f4009237 | 530 | depends on CGROUPS |
a7f7f624 | 531 | help |
f4009237 TG |
532 | Say Y here if you want to classify packets based on the control |
533 | cgroup of their process. | |
534 | ||
8e039d84 BB |
535 | To compile this code as a module, choose M here: the |
536 | module will be called cls_cgroup. | |
537 | ||
7d1d65cb DB |
538 | config NET_CLS_BPF |
539 | tristate "BPF-based classifier" | |
540 | select NET_CLS | |
a7f7f624 | 541 | help |
7d1d65cb DB |
542 | If you say Y here, you will be able to classify packets based on |
543 | programmable BPF (JIT'ed) filters as an alternative to ematches. | |
544 | ||
545 | To compile this code as a module, choose M here: the module will | |
546 | be called cls_bpf. | |
547 | ||
77b9900e JP |
548 | config NET_CLS_FLOWER |
549 | tristate "Flower classifier" | |
550 | select NET_CLS | |
a7f7f624 | 551 | help |
77b9900e JP |
552 | If you say Y here, you will be able to classify packets based on |
553 | a configurable combination of packet keys and masks. | |
554 | ||
555 | To compile this code as a module, choose M here: the module will | |
556 | be called cls_flower. | |
557 | ||
bf3994d2 JP |
558 | config NET_CLS_MATCHALL |
559 | tristate "Match-all classifier" | |
560 | select NET_CLS | |
a7f7f624 | 561 | help |
bf3994d2 JP |
562 | If you say Y here, you will be able to classify packets based on |
563 | nothing. Every packet will match. | |
564 | ||
565 | To compile this code as a module, choose M here: the module will | |
566 | be called cls_matchall. | |
567 | ||
1da177e4 LT |
568 | config NET_EMATCH |
569 | bool "Extended Matches" | |
52ab4ac2 | 570 | select NET_CLS |
a7f7f624 | 571 | help |
1da177e4 LT |
572 | Say Y here if you want to use extended matches on top of classifiers |
573 | and select the extended matches below. | |
574 | ||
575 | Extended matches are small classification helpers not worth writing | |
52ab4ac2 | 576 | a separate classifier for. |
1da177e4 | 577 | |
52ab4ac2 | 578 | A recent version of the iproute2 package is required to use |
1da177e4 LT |
579 | extended matches. |
580 | ||
581 | config NET_EMATCH_STACK | |
582 | int "Stack size" | |
583 | depends on NET_EMATCH | |
584 | default "32" | |
a7f7f624 | 585 | help |
1da177e4 LT |
586 | Size of the local stack variable used while evaluating the tree of |
587 | ematches. Limits the depth of the tree, i.e. the number of | |
b824979a | 588 | encapsulated precedences. Every level requires 4 bytes of additional |
1da177e4 LT |
589 | stack space. |
590 | ||
591 | config NET_EMATCH_CMP | |
592 | tristate "Simple packet data comparison" | |
593 | depends on NET_EMATCH | |
a7f7f624 | 594 | help |
1da177e4 LT |
595 | Say Y here if you want to be able to classify packets based on |
596 | simple packet data comparisons for 8, 16, and 32bit values. | |
597 | ||
598 | To compile this code as a module, choose M here: the | |
599 | module will be called em_cmp. | |
600 | ||
601 | config NET_EMATCH_NBYTE | |
602 | tristate "Multi byte comparison" | |
603 | depends on NET_EMATCH | |
a7f7f624 | 604 | help |
1da177e4 LT |
605 | Say Y here if you want to be able to classify packets based on |
606 | multiple byte comparisons mainly useful for IPv6 address comparisons. | |
607 | ||
608 | To compile this code as a module, choose M here: the | |
609 | module will be called em_nbyte. | |
610 | ||
611 | config NET_EMATCH_U32 | |
52ab4ac2 | 612 | tristate "U32 key" |
1da177e4 | 613 | depends on NET_EMATCH |
a7f7f624 | 614 | help |
1da177e4 LT |
615 | Say Y here if you want to be able to classify packets using |
616 | the famous u32 key in combination with logic relations. | |
617 | ||
618 | To compile this code as a module, choose M here: the | |
619 | module will be called em_u32. | |
620 | ||
621 | config NET_EMATCH_META | |
622 | tristate "Metadata" | |
623 | depends on NET_EMATCH | |
a7f7f624 | 624 | help |
bb7e8c5a | 625 | Say Y here if you want to be able to classify packets based on |
1da177e4 LT |
626 | metadata such as load average, netfilter attributes, socket |
627 | attributes and routing decisions. | |
628 | ||
629 | To compile this code as a module, choose M here: the | |
630 | module will be called em_meta. | |
631 | ||
d675c989 TG |
632 | config NET_EMATCH_TEXT |
633 | tristate "Textsearch" | |
634 | depends on NET_EMATCH | |
f2d368fa | 635 | select TEXTSEARCH |
f7704347 | 636 | select TEXTSEARCH_KMP |
29cb9f9c | 637 | select TEXTSEARCH_BM |
f7704347 | 638 | select TEXTSEARCH_FSM |
a7f7f624 | 639 | help |
52ab4ac2 | 640 | Say Y here if you want to be able to classify packets based on |
f7704347 | 641 | textsearch comparisons. |
d675c989 TG |
642 | |
643 | To compile this code as a module, choose M here: the | |
644 | module will be called em_text. | |
645 | ||
f057bbb6 RL |
646 | config NET_EMATCH_CANID |
647 | tristate "CAN Identifier" | |
a303fbf3 | 648 | depends on NET_EMATCH && (CAN=y || CAN=m) |
a7f7f624 | 649 | help |
f057bbb6 RL |
650 | Say Y here if you want to be able to classify CAN frames based |
651 | on CAN Identifier. | |
652 | ||
653 | To compile this code as a module, choose M here: the | |
654 | module will be called em_canid. | |
655 | ||
6d4fa852 FW |
656 | config NET_EMATCH_IPSET |
657 | tristate "IPset" | |
658 | depends on NET_EMATCH && IP_SET | |
a7f7f624 | 659 | help |
6d4fa852 FW |
660 | Say Y here if you want to be able to classify packets based on |
661 | ipset membership. | |
662 | ||
663 | To compile this code as a module, choose M here: the | |
664 | module will be called em_ipset. | |
665 | ||
ccc007e4 EB |
666 | config NET_EMATCH_IPT |
667 | tristate "IPtables Matches" | |
668 | depends on NET_EMATCH && NETFILTER && NETFILTER_XTABLES | |
a7f7f624 | 669 | help |
ccc007e4 EB |
670 | Say Y here to be able to classify packets based on iptables |
671 | matches. | |
672 | Current supported match is "policy" which allows packet classification | |
673 | based on IPsec policy that was used during decapsulation | |
674 | ||
675 | To compile this code as a module, choose M here: the | |
676 | module will be called em_ipt. | |
677 | ||
1da177e4 | 678 | config NET_CLS_ACT |
52ab4ac2 | 679 | bool "Actions" |
8ec1507d | 680 | select NET_CLS |
e420bed0 | 681 | select NET_XGRESS |
a7f7f624 | 682 | help |
52ab4ac2 TG |
683 | Say Y here if you want to use traffic control actions. Actions |
684 | get attached to classifiers and are invoked after a successful | |
685 | classification. They are used to overwrite the classification | |
686 | result, instantly drop or redirect packets, etc. | |
687 | ||
688 | A recent version of the iproute2 package is required to use | |
689 | extended matches. | |
1da177e4 LT |
690 | |
691 | config NET_ACT_POLICE | |
52ab4ac2 | 692 | tristate "Traffic Policing" |
bf69abad | 693 | depends on NET_CLS_ACT |
a7f7f624 | 694 | help |
52ab4ac2 TG |
695 | Say Y here if you want to do traffic policing, i.e. strict |
696 | bandwidth limiting. This action replaces the existing policing | |
697 | module. | |
698 | ||
699 | To compile this code as a module, choose M here: the | |
d4ae20b3 | 700 | module will be called act_police. |
1da177e4 LT |
701 | |
702 | config NET_ACT_GACT | |
bf69abad KK |
703 | tristate "Generic actions" |
704 | depends on NET_CLS_ACT | |
a7f7f624 | 705 | help |
52ab4ac2 TG |
706 | Say Y here to take generic actions such as dropping and |
707 | accepting packets. | |
708 | ||
709 | To compile this code as a module, choose M here: the | |
d4ae20b3 | 710 | module will be called act_gact. |
1da177e4 LT |
711 | |
712 | config GACT_PROB | |
bf69abad KK |
713 | bool "Probability support" |
714 | depends on NET_ACT_GACT | |
a7f7f624 | 715 | help |
52ab4ac2 | 716 | Say Y here to use the generic action randomly or deterministically. |
1da177e4 LT |
717 | |
718 | config NET_ACT_MIRRED | |
bf69abad KK |
719 | tristate "Redirecting and Mirroring" |
720 | depends on NET_CLS_ACT | |
a7f7f624 | 721 | help |
52ab4ac2 TG |
722 | Say Y here to allow packets to be mirrored or redirected to |
723 | other devices. | |
724 | ||
725 | To compile this code as a module, choose M here: the | |
d4ae20b3 | 726 | module will be called act_mirred. |
1da177e4 | 727 | |
5c5670fa | 728 | config NET_ACT_SAMPLE |
bf69abad KK |
729 | tristate "Traffic Sampling" |
730 | depends on NET_CLS_ACT | |
731 | select PSAMPLE | |
a7f7f624 | 732 | help |
5c5670fa YG |
733 | Say Y here to allow packet sampling tc action. The packet sample |
734 | action consists of statistically choosing packets and sampling | |
735 | them using the psample module. | |
736 | ||
737 | To compile this code as a module, choose M here: the | |
738 | module will be called act_sample. | |
739 | ||
b4219952 | 740 | config NET_ACT_NAT |
bf69abad KK |
741 | tristate "Stateless NAT" |
742 | depends on NET_CLS_ACT | |
a7f7f624 | 743 | help |
b4219952 HX |
744 | Say Y here to do stateless NAT on IPv4 packets. You should use |
745 | netfilter for NAT unless you know what you are doing. | |
746 | ||
747 | To compile this code as a module, choose M here: the | |
d4ae20b3 | 748 | module will be called act_nat. |
b4219952 | 749 | |
1da177e4 | 750 | config NET_ACT_PEDIT |
bf69abad KK |
751 | tristate "Packet Editing" |
752 | depends on NET_CLS_ACT | |
a7f7f624 | 753 | help |
52ab4ac2 | 754 | Say Y here if you want to mangle the content of packets. |
1da177e4 | 755 | |
52ab4ac2 | 756 | To compile this code as a module, choose M here: the |
d4ae20b3 | 757 | module will be called act_pedit. |
1da177e4 | 758 | |
db753079 | 759 | config NET_ACT_SIMP |
bf69abad KK |
760 | tristate "Simple Example (Debug)" |
761 | depends on NET_CLS_ACT | |
a7f7f624 | 762 | help |
52ab4ac2 TG |
763 | Say Y here to add a simple action for demonstration purposes. |
764 | It is meant as an example and for debugging purposes. It will | |
765 | print a configured policy string followed by the packet count | |
766 | to the console for every packet that passes by. | |
767 | ||
768 | If unsure, say N. | |
769 | ||
770 | To compile this code as a module, choose M here: the | |
d4ae20b3 | 771 | module will be called act_simple. |
52ab4ac2 | 772 | |
ca9b0e27 | 773 | config NET_ACT_SKBEDIT |
bf69abad KK |
774 | tristate "SKB Editing" |
775 | depends on NET_CLS_ACT | |
a7f7f624 | 776 | help |
ca9b0e27 AD |
777 | Say Y here to change skb priority or queue_mapping settings. |
778 | ||
779 | If unsure, say N. | |
780 | ||
781 | To compile this code as a module, choose M here: the | |
d4ae20b3 | 782 | module will be called act_skbedit. |
ca9b0e27 | 783 | |
eb4d4065 | 784 | config NET_ACT_CSUM |
bf69abad KK |
785 | tristate "Checksum Updating" |
786 | depends on NET_CLS_ACT && INET | |
787 | select LIBCRC32C | |
a7f7f624 | 788 | help |
eb4d4065 GB |
789 | Say Y here to update some common checksum after some direct |
790 | packet alterations. | |
791 | ||
792 | To compile this code as a module, choose M here: the | |
793 | module will be called act_csum. | |
794 | ||
2a2ea508 JH |
795 | config NET_ACT_MPLS |
796 | tristate "MPLS manipulation" | |
797 | depends on NET_CLS_ACT | |
798 | help | |
799 | Say Y here to push or pop MPLS headers. | |
800 | ||
801 | If unsure, say N. | |
802 | ||
803 | To compile this code as a module, choose M here: the | |
804 | module will be called act_mpls. | |
805 | ||
c7e2b968 | 806 | config NET_ACT_VLAN |
bf69abad KK |
807 | tristate "Vlan manipulation" |
808 | depends on NET_CLS_ACT | |
a7f7f624 | 809 | help |
c7e2b968 JP |
810 | Say Y here to push or pop vlan headers. |
811 | ||
812 | If unsure, say N. | |
813 | ||
814 | To compile this code as a module, choose M here: the | |
815 | module will be called act_vlan. | |
816 | ||
d23b8ad8 | 817 | config NET_ACT_BPF |
bf69abad KK |
818 | tristate "BPF based action" |
819 | depends on NET_CLS_ACT | |
a7f7f624 | 820 | help |
d23b8ad8 JP |
821 | Say Y here to execute BPF code on packets. The BPF code will decide |
822 | if the packet should be dropped or not. | |
823 | ||
824 | If unsure, say N. | |
825 | ||
826 | To compile this code as a module, choose M here: the | |
827 | module will be called act_bpf. | |
828 | ||
22a5dc0e | 829 | config NET_ACT_CONNMARK |
bf69abad | 830 | tristate "Netfilter Connection Mark Retriever" |
102e2c07 | 831 | depends on NET_CLS_ACT && NETFILTER |
bf69abad | 832 | depends on NF_CONNTRACK && NF_CONNTRACK_MARK |
a7f7f624 | 833 | help |
22a5dc0e FF |
834 | Say Y here to allow retrieving of conn mark |
835 | ||
836 | If unsure, say N. | |
837 | ||
838 | To compile this code as a module, choose M here: the | |
839 | module will be called act_connmark. | |
840 | ||
24ec483c | 841 | config NET_ACT_CTINFO |
bf69abad | 842 | tristate "Netfilter Connection Mark Actions" |
102e2c07 | 843 | depends on NET_CLS_ACT && NETFILTER |
bf69abad KK |
844 | depends on NF_CONNTRACK && NF_CONNTRACK_MARK |
845 | help | |
24ec483c KDB |
846 | Say Y here to allow transfer of a connmark stored information. |
847 | Current actions transfer connmark stored DSCP into | |
848 | ipv4/v6 diffserv and/or to transfer connmark to packet | |
849 | mark. Both are useful for restoring egress based marks | |
850 | back onto ingress connections for qdisc priority mapping | |
851 | purposes. | |
852 | ||
853 | If unsure, say N. | |
854 | ||
855 | To compile this code as a module, choose M here: the | |
856 | module will be called act_ctinfo. | |
857 | ||
86da71b5 | 858 | config NET_ACT_SKBMOD |
bf69abad KK |
859 | tristate "skb data modification action" |
860 | depends on NET_CLS_ACT | |
a7f7f624 | 861 | help |
bf69abad | 862 | Say Y here to allow modification of skb data |
86da71b5 | 863 | |
bf69abad | 864 | If unsure, say N. |
86da71b5 | 865 | |
bf69abad KK |
866 | To compile this code as a module, choose M here: the |
867 | module will be called act_skbmod. | |
86da71b5 | 868 | |
ef6980b6 | 869 | config NET_ACT_IFE |
bf69abad KK |
870 | tristate "Inter-FE action based on IETF ForCES InterFE LFB" |
871 | depends on NET_CLS_ACT | |
872 | select NET_IFE | |
a7f7f624 | 873 | help |
ef6980b6 JHS |
874 | Say Y here to allow for sourcing and terminating metadata |
875 | For details refer to netdev01 paper: | |
876 | "Distributing Linux Traffic Control Classifier-Action Subsystem" | |
877 | Authors: Jamal Hadi Salim and Damascene M. Joachimpillai | |
878 | ||
879 | To compile this code as a module, choose M here: the | |
880 | module will be called act_ife. | |
881 | ||
d0f6dd8a | 882 | config NET_ACT_TUNNEL_KEY |
bf69abad KK |
883 | tristate "IP tunnel metadata manipulation" |
884 | depends on NET_CLS_ACT | |
a7f7f624 | 885 | help |
d0f6dd8a AV |
886 | Say Y here to set/release ip tunnel metadata. |
887 | ||
888 | If unsure, say N. | |
889 | ||
890 | To compile this code as a module, choose M here: the | |
891 | module will be called act_tunnel_key. | |
892 | ||
b57dc7c1 | 893 | config NET_ACT_CT |
bf69abad | 894 | tristate "connection tracking tc action" |
8427fd10 | 895 | depends on NET_CLS_ACT && NF_CONNTRACK && (!NF_NAT || NF_NAT) && NF_FLOW_TABLE |
c0c3ab63 | 896 | select NF_CONNTRACK_OVS |
ebddb140 | 897 | select NF_NAT_OVS if NF_NAT |
bf69abad | 898 | help |
b57dc7c1 PB |
899 | Say Y here to allow sending the packets to conntrack module. |
900 | ||
901 | If unsure, say N. | |
902 | ||
903 | To compile this code as a module, choose M here: the | |
904 | module will be called act_ct. | |
905 | ||
a51c328d PL |
906 | config NET_ACT_GATE |
907 | tristate "Frame gate entry list control tc action" | |
908 | depends on NET_CLS_ACT | |
909 | help | |
910 | Say Y here to allow to control the ingress flow to be passed at | |
911 | specific time slot and be dropped at other specific time slot by | |
912 | the gate entry list. | |
913 | ||
914 | If unsure, say N. | |
915 | To compile this code as a module, choose M here: the | |
916 | module will be called act_gate. | |
917 | ||
084e2f65 | 918 | config NET_IFE_SKBMARK |
bf69abad KK |
919 | tristate "Support to encoding decoding skb mark on IFE action" |
920 | depends on NET_ACT_IFE | |
084e2f65 | 921 | |
200e10f4 | 922 | config NET_IFE_SKBPRIO |
bf69abad KK |
923 | tristate "Support to encoding decoding skb prio on IFE action" |
924 | depends on NET_ACT_IFE | |
200e10f4 | 925 | |
408fbc22 | 926 | config NET_IFE_SKBTCINDEX |
bf69abad KK |
927 | tristate "Support to encoding decoding skb tcindex on IFE action" |
928 | depends on NET_ACT_IFE | |
408fbc22 | 929 | |
95a7233c PB |
930 | config NET_TC_SKB_EXT |
931 | bool "TC recirculation support" | |
932 | depends on NET_CLS_ACT | |
95a7233c PB |
933 | select SKB_EXTENSIONS |
934 | ||
935 | help | |
936 | Say Y here to allow tc chain misses to continue in OvS datapath in | |
937 | the correct recirc_id, and hardware chain misses to continue in | |
938 | the correct chain in tc software datapath. | |
939 | ||
940 | Say N here if you won't be using tc<->ovs offload or tc chains offload. | |
941 | ||
05b8b0fa RZ |
942 | endif # NET_SCHED |
943 | ||
85ef3e5c RD |
944 | config NET_SCH_FIFO |
945 | bool |