Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | # |
2 | # Traffic control configuration. | |
50f699b1 | 3 | # |
6a2e9b73 | 4 | |
85ef3e5c | 5 | menuconfig NET_SCHED |
6a2e9b73 | 6 | bool "QoS and/or fair queueing" |
3c62f75a | 7 | select NET_SCH_FIFO |
6a2e9b73 SR |
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 | |
52ab4ac2 TG |
11 | delay, and which ones to drop. This is the job of the queueing |
12 | disciplines, several different algorithms for how to do this | |
6a2e9b73 SR |
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 | |
5d330cdd AS |
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>. |
6a2e9b73 SR |
29 | |
30 | This Quality of Service (QoS) support will enable you to use | |
31 | Differentiated Services (diffserv) and Resource Reservation Protocol | |
52ab4ac2 TG |
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/>. | |
6a2e9b73 SR |
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 | ||
05b8b0fa RZ |
43 | if NET_SCHED |
44 | ||
52ab4ac2 | 45 | comment "Queueing/Scheduling" |
52ab4ac2 | 46 | |
1da177e4 | 47 | config NET_SCH_CBQ |
52ab4ac2 | 48 | tristate "Class Based Queueing (CBQ)" |
1da177e4 LT |
49 | ---help--- |
50 | Say Y here if you want to use the Class-Based Queueing (CBQ) packet | |
52ab4ac2 TG |
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. |
1da177e4 LT |
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. |
1da177e4 LT |
60 | |
61 | To compile this code as a module, choose M here: the | |
62 | module will be called sch_cbq. | |
63 | ||
64 | config NET_SCH_HTB | |
52ab4ac2 | 65 | tristate "Hierarchical Token Bucket (HTB)" |
1da177e4 LT |
66 | ---help--- |
67 | Say Y here if you want to use the Hierarchical Token Buckets (HTB) | |
52ab4ac2 | 68 | packet scheduling algorithm. See |
1da177e4 LT |
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 |
1da177e4 LT |
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 | ||
78 | config NET_SCH_HFSC | |
52ab4ac2 | 79 | tristate "Hierarchical Fair Service Curve (HFSC)" |
1da177e4 LT |
80 | ---help--- |
81 | Say Y here if you want to use the Hierarchical Fair Service Curve | |
52ab4ac2 | 82 | (HFSC) packet scheduling algorithm. |
1da177e4 LT |
83 | |
84 | To compile this code as a module, choose M here: the | |
85 | module will be called sch_hfsc. | |
86 | ||
1da177e4 | 87 | config NET_SCH_ATM |
52ab4ac2 | 88 | tristate "ATM Virtual Circuits (ATM)" |
05b8b0fa | 89 | depends on ATM |
1da177e4 LT |
90 | ---help--- |
91 | Say Y here if you want to use the ATM pseudo-scheduler. This | |
52ab4ac2 TG |
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. |
1da177e4 LT |
97 | |
98 | To compile this code as a module, choose M here: the | |
99 | module will be called sch_atm. | |
100 | ||
101 | config 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. |
1da177e4 LT |
106 | |
107 | To compile this code as a module, choose M here: the | |
108 | module will be called sch_prio. | |
109 | ||
92651940 AD |
110 | config 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 | 119 | config 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) |
52ab4ac2 TG |
123 | packet scheduling algorithm. |
124 | ||
125 | See the top of <file:net/sched/sch_red.c> for more details. | |
1da177e4 LT |
126 | |
127 | To compile this code as a module, choose M here: the | |
128 | module will be called sch_red. | |
129 | ||
e13e02a3 ED |
130 | config 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 | 141 | config NET_SCH_SFQ |
52ab4ac2 | 142 | tristate "Stochastic Fairness Queueing (SFQ)" |
1da177e4 LT |
143 | ---help--- |
144 | Say Y here if you want to use the Stochastic Fairness Queueing (SFQ) | |
99acaeb9 | 145 | packet scheduling algorithm. |
52ab4ac2 TG |
146 | |
147 | See the top of <file:net/sched/sch_sfq.c> for more details. | |
1da177e4 LT |
148 | |
149 | To compile this code as a module, choose M here: the | |
150 | module will be called sch_sfq. | |
151 | ||
152 | config NET_SCH_TEQL | |
52ab4ac2 | 153 | tristate "True Link Equalizer (TEQL)" |
1da177e4 LT |
154 | ---help--- |
155 | Say Y here if you want to use the True Link Equalizer (TLE) packet | |
52ab4ac2 TG |
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. | |
1da177e4 LT |
160 | |
161 | To compile this code as a module, choose M here: the | |
162 | module will be called sch_teql. | |
163 | ||
164 | config NET_SCH_TBF | |
52ab4ac2 | 165 | tristate "Token Bucket Filter (TBF)" |
52ab4ac2 TG |
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. | |
1da177e4 LT |
171 | |
172 | To compile this code as a module, choose M here: the | |
173 | module will be called sch_tbf. | |
174 | ||
585d763a VCG |
175 | config 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. | |
25db26a9 VCG |
185 | |
186 | config NET_SCH_ETF | |
187 | tristate "Earliest TxTime First (ETF)" | |
188 | help | |
189 | Say Y here if you want to use the Earliest TxTime First (ETF) packet | |
190 | scheduling algorithm. | |
191 | ||
192 | See the top of <file:net/sched/sch_etf.c> for more details. | |
193 | ||
194 | To compile this code as a module, choose M here: the | |
195 | module will be called sch_etf. | |
585d763a | 196 | |
5a781ccb VCG |
197 | config NET_SCH_TAPRIO |
198 | tristate "Time Aware Priority (taprio) Scheduler" | |
199 | help | |
200 | Say Y here if you want to use the Time Aware Priority (taprio) packet | |
201 | scheduling algorithm. | |
202 | ||
203 | See the top of <file:net/sched/sch_taprio.c> for more details. | |
204 | ||
205 | To compile this code as a module, choose M here: the | |
206 | module will be called sch_taprio. | |
207 | ||
1da177e4 | 208 | config NET_SCH_GRED |
52ab4ac2 | 209 | tristate "Generic Random Early Detection (GRED)" |
52ab4ac2 | 210 | ---help--- |
1da177e4 | 211 | Say Y here if you want to use the Generic Random Early Detection |
20cc6bef | 212 | (GRED) packet scheduling algorithm for some of your network devices |
1da177e4 LT |
213 | (see the top of <file:net/sched/sch_red.c> for details and |
214 | references about the algorithm). | |
215 | ||
216 | To compile this code as a module, choose M here: the | |
217 | module will be called sch_gred. | |
218 | ||
219 | config NET_SCH_DSMARK | |
52ab4ac2 | 220 | tristate "Differentiated Services marker (DSMARK)" |
52ab4ac2 | 221 | ---help--- |
1da177e4 LT |
222 | Say Y if you want to schedule packets according to the |
223 | Differentiated Services architecture proposed in RFC 2475. | |
224 | Technical information on this method, with pointers to associated | |
225 | RFCs, is available at <http://www.gta.ufrj.br/diffserv/>. | |
226 | ||
227 | To compile this code as a module, choose M here: the | |
228 | module will be called sch_dsmark. | |
229 | ||
230 | config NET_SCH_NETEM | |
52ab4ac2 | 231 | tristate "Network emulator (NETEM)" |
52ab4ac2 | 232 | ---help--- |
1da177e4 LT |
233 | Say Y if you want to emulate network delay, loss, and packet |
234 | re-ordering. This is often useful to simulate networks when | |
235 | testing applications or protocols. | |
236 | ||
237 | To compile this driver as a module, choose M here: the module | |
238 | will be called sch_netem. | |
239 | ||
240 | If unsure, say N. | |
241 | ||
13d2a1d2 PM |
242 | config NET_SCH_DRR |
243 | tristate "Deficit Round Robin scheduler (DRR)" | |
244 | help | |
245 | Say Y here if you want to use the Deficit Round Robin (DRR) packet | |
246 | scheduling algorithm. | |
247 | ||
248 | To compile this driver as a module, choose M here: the module | |
249 | will be called sch_drr. | |
250 | ||
251 | If unsure, say N. | |
252 | ||
b8970f0b JF |
253 | config NET_SCH_MQPRIO |
254 | tristate "Multi-queue priority scheduler (MQPRIO)" | |
255 | help | |
256 | Say Y here if you want to use the Multi-queue Priority scheduler. | |
257 | This scheduler allows QOS to be offloaded on NICs that have support | |
258 | for offloading QOS schedulers. | |
259 | ||
260 | To compile this driver as a module, choose M here: the module will | |
261 | be called sch_mqprio. | |
262 | ||
263 | If unsure, say N. | |
264 | ||
aea5f654 ND |
265 | config NET_SCH_SKBPRIO |
266 | tristate "SKB priority queue scheduler (SKBPRIO)" | |
267 | help | |
268 | Say Y here if you want to use the SKB priority queue | |
269 | scheduler. This schedules packets according to skb->priority, | |
270 | which is useful for request packets in DoS mitigation systems such | |
271 | as Gatekeeper. | |
272 | ||
273 | To compile this driver as a module, choose M here: the module will | |
274 | be called sch_skbprio. | |
275 | ||
276 | If unsure, say N. | |
277 | ||
45e14433 | 278 | config NET_SCH_CHOKE |
279 | tristate "CHOose and Keep responsive flow scheduler (CHOKE)" | |
280 | help | |
281 | Say Y here if you want to use the CHOKe packet scheduler (CHOose | |
282 | and Keep for responsive flows, CHOose and Kill for unresponsive | |
283 | flows). This is a variation of RED which trys to penalize flows | |
284 | that monopolize the queue. | |
285 | ||
286 | To compile this code as a module, choose M here: the | |
287 | module will be called sch_choke. | |
288 | ||
0545a303 | 289 | config NET_SCH_QFQ |
290 | tristate "Quick Fair Queueing scheduler (QFQ)" | |
291 | help | |
292 | Say Y here if you want to use the Quick Fair Queueing Scheduler (QFQ) | |
293 | packet scheduling algorithm. | |
294 | ||
295 | To compile this driver as a module, choose M here: the module | |
296 | will be called sch_qfq. | |
297 | ||
298 | If unsure, say N. | |
299 | ||
76e3cc12 ED |
300 | config NET_SCH_CODEL |
301 | tristate "Controlled Delay AQM (CODEL)" | |
302 | help | |
303 | Say Y here if you want to use the Controlled Delay (CODEL) | |
304 | packet scheduling algorithm. | |
305 | ||
306 | To compile this driver as a module, choose M here: the module | |
307 | will be called sch_codel. | |
308 | ||
309 | If unsure, say N. | |
310 | ||
4b549a2e ED |
311 | config NET_SCH_FQ_CODEL |
312 | tristate "Fair Queue Controlled Delay AQM (FQ_CODEL)" | |
313 | help | |
314 | Say Y here if you want to use the FQ Controlled Delay (FQ_CODEL) | |
315 | packet scheduling algorithm. | |
316 | ||
317 | To compile this driver as a module, choose M here: the module | |
318 | will be called sch_fq_codel. | |
319 | ||
320 | If unsure, say N. | |
321 | ||
046f6fd5 THJ |
322 | config NET_SCH_CAKE |
323 | tristate "Common Applications Kept Enhanced (CAKE)" | |
324 | help | |
325 | Say Y here if you want to use the Common Applications Kept Enhanced | |
326 | (CAKE) queue management algorithm. | |
327 | ||
328 | To compile this driver as a module, choose M here: the module | |
329 | will be called sch_cake. | |
330 | ||
331 | If unsure, say N. | |
332 | ||
afe4fd06 ED |
333 | config NET_SCH_FQ |
334 | tristate "Fair Queue" | |
335 | help | |
336 | Say Y here if you want to use the FQ packet scheduling algorithm. | |
337 | ||
338 | FQ does flow separation, and is able to respect pacing requirements | |
339 | set by TCP stack into sk->sk_pacing_rate (for localy generated | |
340 | traffic) | |
341 | ||
342 | To compile this driver as a module, choose M here: the module | |
343 | will be called sch_fq. | |
344 | ||
345 | If unsure, say N. | |
346 | ||
10239edf TL |
347 | config NET_SCH_HHF |
348 | tristate "Heavy-Hitter Filter (HHF)" | |
349 | help | |
350 | Say Y here if you want to use the Heavy-Hitter Filter (HHF) | |
351 | packet scheduling algorithm. | |
352 | ||
353 | To compile this driver as a module, choose M here: the module | |
354 | will be called sch_hhf. | |
355 | ||
d4b36210 VS |
356 | config NET_SCH_PIE |
357 | tristate "Proportional Integral controller Enhanced (PIE) scheduler" | |
358 | help | |
359 | Say Y here if you want to use the Proportional Integral controller | |
360 | Enhanced scheduler packet scheduling algorithm. | |
361 | For more information, please see | |
362 | http://tools.ietf.org/html/draft-pan-tsvwg-pie-00 | |
363 | ||
364 | To compile this driver as a module, choose M here: the module | |
365 | will be called sch_pie. | |
366 | ||
367 | If unsure, say N. | |
368 | ||
1da177e4 | 369 | config NET_SCH_INGRESS |
1f211a1b | 370 | tristate "Ingress/classifier-action Qdisc" |
72eb7bd2 | 371 | depends on NET_CLS_ACT |
1cf51900 | 372 | select NET_INGRESS |
1f211a1b | 373 | select NET_EGRESS |
52ab4ac2 | 374 | ---help--- |
1f211a1b DB |
375 | Say Y here if you want to use classifiers for incoming and/or outgoing |
376 | packets. This qdisc doesn't do anything else besides running classifiers, | |
377 | which can also have actions attached to them. In case of outgoing packets, | |
378 | classifiers that this qdisc holds are executed in the transmit path | |
379 | before real enqueuing to an egress qdisc happens. | |
380 | ||
1da177e4 LT |
381 | If unsure, say Y. |
382 | ||
1f211a1b DB |
383 | To compile this code as a module, choose M here: the module will be |
384 | called sch_ingress with alias of sch_clsact. | |
1da177e4 | 385 | |
c3059be1 SR |
386 | config NET_SCH_PLUG |
387 | tristate "Plug network traffic until release (PLUG)" | |
388 | ---help--- | |
389 | ||
390 | This queuing discipline allows userspace to plug/unplug a network | |
391 | output queue, using the netlink interface. When it receives an | |
392 | enqueue command it inserts a plug into the outbound queue that | |
393 | causes following packets to enqueue until a dequeue command arrives | |
394 | over netlink, causing the plug to be removed and resuming the normal | |
395 | packet flow. | |
396 | ||
397 | This module also provides a generic "network output buffering" | |
398 | functionality (aka output commit), wherein upon arrival of a dequeue | |
399 | command, only packets up to the first plug are released for delivery. | |
400 | The Remus HA project uses this module to enable speculative execution | |
401 | of virtual machines by allowing the generated network output to be rolled | |
402 | back if needed. | |
403 | ||
5d330cdd | 404 | For more information, please refer to <http://wiki.xenproject.org/wiki/Remus> |
c3059be1 SR |
405 | |
406 | Say Y here if you are using this kernel for Xen dom0 and | |
407 | want to protect Xen guests with Remus. | |
408 | ||
409 | To compile this code as a module, choose M here: the | |
410 | module will be called sch_plug. | |
411 | ||
8ea3e439 | 412 | menuconfig NET_SCH_DEFAULT |
413 | bool "Allow override default queue discipline" | |
414 | ---help--- | |
415 | Support for selection of default queuing discipline. | |
416 | ||
417 | Nearly all users can safely say no here, and the default | |
418 | of pfifo_fast will be used. Many distributions already set | |
419 | the default value via /proc/sys/net/core/default_qdisc. | |
420 | ||
421 | If unsure, say N. | |
422 | ||
423 | if NET_SCH_DEFAULT | |
424 | ||
425 | choice | |
426 | prompt "Default queuing discipline" | |
427 | default DEFAULT_PFIFO_FAST | |
428 | help | |
429 | Select the queueing discipline that will be used by default | |
430 | for all network devices. | |
431 | ||
432 | config DEFAULT_FQ | |
433 | bool "Fair Queue" if NET_SCH_FQ | |
434 | ||
435 | config DEFAULT_CODEL | |
436 | bool "Controlled Delay" if NET_SCH_CODEL | |
437 | ||
438 | config DEFAULT_FQ_CODEL | |
439 | bool "Fair Queue Controlled Delay" if NET_SCH_FQ_CODEL | |
440 | ||
441 | config DEFAULT_SFQ | |
442 | bool "Stochastic Fair Queue" if NET_SCH_SFQ | |
443 | ||
444 | config DEFAULT_PFIFO_FAST | |
445 | bool "Priority FIFO Fast" | |
446 | endchoice | |
447 | ||
448 | config DEFAULT_NET_SCH | |
449 | string | |
450 | default "pfifo_fast" if DEFAULT_PFIFO_FAST | |
451 | default "fq" if DEFAULT_FQ | |
452 | default "fq_codel" if DEFAULT_FQ_CODEL | |
453 | default "sfq" if DEFAULT_SFQ | |
454 | default "pfifo_fast" | |
455 | endif | |
456 | ||
52ab4ac2 | 457 | comment "Classification" |
1da177e4 LT |
458 | |
459 | config NET_CLS | |
6341e62b | 460 | bool |
1da177e4 LT |
461 | |
462 | config NET_CLS_BASIC | |
52ab4ac2 | 463 | tristate "Elementary classification (BASIC)" |
52ab4ac2 | 464 | select NET_CLS |
1da177e4 LT |
465 | ---help--- |
466 | Say Y here if you want to be able to classify packets using | |
467 | only extended matches and actions. | |
468 | ||
469 | To compile this code as a module, choose M here: the | |
470 | module will be called cls_basic. | |
471 | ||
472 | config NET_CLS_TCINDEX | |
52ab4ac2 | 473 | tristate "Traffic-Control Index (TCINDEX)" |
52ab4ac2 TG |
474 | select NET_CLS |
475 | ---help--- | |
476 | Say Y here if you want to be able to classify packets based on | |
477 | traffic control indices. You will want this feature if you want | |
478 | to implement Differentiated Services together with DSMARK. | |
1da177e4 LT |
479 | |
480 | To compile this code as a module, choose M here: the | |
481 | module will be called cls_tcindex. | |
482 | ||
483 | config NET_CLS_ROUTE4 | |
52ab4ac2 | 484 | tristate "Routing decision (ROUTE)" |
034cfe48 | 485 | depends on INET |
c7066f70 | 486 | select IP_ROUTE_CLASSID |
52ab4ac2 TG |
487 | select NET_CLS |
488 | ---help--- | |
489 | If you say Y here, you will be able to classify packets | |
490 | according to the route table entry they matched. | |
1da177e4 LT |
491 | |
492 | To compile this code as a module, choose M here: the | |
493 | module will be called cls_route. | |
494 | ||
1da177e4 | 495 | config NET_CLS_FW |
52ab4ac2 | 496 | tristate "Netfilter mark (FW)" |
52ab4ac2 TG |
497 | select NET_CLS |
498 | ---help--- | |
499 | If you say Y here, you will be able to classify packets | |
500 | according to netfilter/firewall marks. | |
1da177e4 LT |
501 | |
502 | To compile this code as a module, choose M here: the | |
503 | module will be called cls_fw. | |
504 | ||
505 | config NET_CLS_U32 | |
52ab4ac2 | 506 | tristate "Universal 32bit comparisons w/ hashing (U32)" |
52ab4ac2 TG |
507 | select NET_CLS |
508 | ---help--- | |
3539c272 | 509 | Say Y here to be able to classify packets using a universal |
52ab4ac2 | 510 | 32bit pieces based comparison scheme. |
1da177e4 LT |
511 | |
512 | To compile this code as a module, choose M here: the | |
513 | module will be called cls_u32. | |
514 | ||
515 | config CLS_U32_PERF | |
52ab4ac2 | 516 | bool "Performance counters support" |
1da177e4 | 517 | depends on NET_CLS_U32 |
52ab4ac2 TG |
518 | ---help--- |
519 | Say Y here to make u32 gather additional statistics useful for | |
520 | fine tuning u32 classifiers. | |
1da177e4 LT |
521 | |
522 | config CLS_U32_MARK | |
52ab4ac2 | 523 | bool "Netfilter marks support" |
82e91ffe | 524 | depends on NET_CLS_U32 |
52ab4ac2 TG |
525 | ---help--- |
526 | Say Y here to be able to use netfilter marks as u32 key. | |
1da177e4 LT |
527 | |
528 | config NET_CLS_RSVP | |
52ab4ac2 | 529 | tristate "IPv4 Resource Reservation Protocol (RSVP)" |
52ab4ac2 | 530 | select NET_CLS |
1da177e4 LT |
531 | ---help--- |
532 | The Resource Reservation Protocol (RSVP) permits end systems to | |
533 | request a minimum and maximum data flow rate for a connection; this | |
534 | is important for real time data such as streaming sound or video. | |
535 | ||
536 | Say Y here if you want to be able to classify outgoing packets based | |
537 | on their RSVP requests. | |
538 | ||
539 | To compile this code as a module, choose M here: the | |
540 | module will be called cls_rsvp. | |
541 | ||
542 | config NET_CLS_RSVP6 | |
52ab4ac2 | 543 | tristate "IPv6 Resource Reservation Protocol (RSVP6)" |
52ab4ac2 | 544 | select NET_CLS |
1da177e4 LT |
545 | ---help--- |
546 | The Resource Reservation Protocol (RSVP) permits end systems to | |
547 | request a minimum and maximum data flow rate for a connection; this | |
548 | is important for real time data such as streaming sound or video. | |
549 | ||
550 | Say Y here if you want to be able to classify outgoing packets based | |
99acaeb9 | 551 | on their RSVP requests and you are using the IPv6 protocol. |
1da177e4 LT |
552 | |
553 | To compile this code as a module, choose M here: the | |
554 | module will be called cls_rsvp6. | |
555 | ||
e5dfb815 PM |
556 | config NET_CLS_FLOW |
557 | tristate "Flow classifier" | |
558 | select NET_CLS | |
559 | ---help--- | |
560 | If you say Y here, you will be able to classify packets based on | |
561 | a configurable combination of packet keys. This is mostly useful | |
562 | in combination with SFQ. | |
563 | ||
564 | To compile this code as a module, choose M here: the | |
565 | module will be called cls_flow. | |
566 | ||
f4009237 | 567 | config NET_CLS_CGROUP |
8e039d84 | 568 | tristate "Control Group Classifier" |
f4009237 | 569 | select NET_CLS |
fe1217c4 | 570 | select CGROUP_NET_CLASSID |
f4009237 TG |
571 | depends on CGROUPS |
572 | ---help--- | |
573 | Say Y here if you want to classify packets based on the control | |
574 | cgroup of their process. | |
575 | ||
8e039d84 BB |
576 | To compile this code as a module, choose M here: the |
577 | module will be called cls_cgroup. | |
578 | ||
7d1d65cb DB |
579 | config NET_CLS_BPF |
580 | tristate "BPF-based classifier" | |
581 | select NET_CLS | |
582 | ---help--- | |
583 | If you say Y here, you will be able to classify packets based on | |
584 | programmable BPF (JIT'ed) filters as an alternative to ematches. | |
585 | ||
586 | To compile this code as a module, choose M here: the module will | |
587 | be called cls_bpf. | |
588 | ||
77b9900e JP |
589 | config NET_CLS_FLOWER |
590 | tristate "Flower classifier" | |
591 | select NET_CLS | |
592 | ---help--- | |
593 | If you say Y here, you will be able to classify packets based on | |
594 | a configurable combination of packet keys and masks. | |
595 | ||
596 | To compile this code as a module, choose M here: the module will | |
597 | be called cls_flower. | |
598 | ||
bf3994d2 JP |
599 | config NET_CLS_MATCHALL |
600 | tristate "Match-all classifier" | |
601 | select NET_CLS | |
602 | ---help--- | |
603 | If you say Y here, you will be able to classify packets based on | |
604 | nothing. Every packet will match. | |
605 | ||
606 | To compile this code as a module, choose M here: the module will | |
607 | be called cls_matchall. | |
608 | ||
1da177e4 LT |
609 | config NET_EMATCH |
610 | bool "Extended Matches" | |
52ab4ac2 | 611 | select NET_CLS |
1da177e4 LT |
612 | ---help--- |
613 | Say Y here if you want to use extended matches on top of classifiers | |
614 | and select the extended matches below. | |
615 | ||
616 | Extended matches are small classification helpers not worth writing | |
52ab4ac2 | 617 | a separate classifier for. |
1da177e4 | 618 | |
52ab4ac2 | 619 | A recent version of the iproute2 package is required to use |
1da177e4 LT |
620 | extended matches. |
621 | ||
622 | config NET_EMATCH_STACK | |
623 | int "Stack size" | |
624 | depends on NET_EMATCH | |
625 | default "32" | |
626 | ---help--- | |
627 | Size of the local stack variable used while evaluating the tree of | |
628 | ematches. Limits the depth of the tree, i.e. the number of | |
b824979a | 629 | encapsulated precedences. Every level requires 4 bytes of additional |
1da177e4 LT |
630 | stack space. |
631 | ||
632 | config NET_EMATCH_CMP | |
633 | tristate "Simple packet data comparison" | |
634 | depends on NET_EMATCH | |
635 | ---help--- | |
636 | Say Y here if you want to be able to classify packets based on | |
637 | simple packet data comparisons for 8, 16, and 32bit values. | |
638 | ||
639 | To compile this code as a module, choose M here: the | |
640 | module will be called em_cmp. | |
641 | ||
642 | config NET_EMATCH_NBYTE | |
643 | tristate "Multi byte comparison" | |
644 | depends on NET_EMATCH | |
645 | ---help--- | |
646 | Say Y here if you want to be able to classify packets based on | |
647 | multiple byte comparisons mainly useful for IPv6 address comparisons. | |
648 | ||
649 | To compile this code as a module, choose M here: the | |
650 | module will be called em_nbyte. | |
651 | ||
652 | config NET_EMATCH_U32 | |
52ab4ac2 | 653 | tristate "U32 key" |
1da177e4 LT |
654 | depends on NET_EMATCH |
655 | ---help--- | |
656 | Say Y here if you want to be able to classify packets using | |
657 | the famous u32 key in combination with logic relations. | |
658 | ||
659 | To compile this code as a module, choose M here: the | |
660 | module will be called em_u32. | |
661 | ||
662 | config NET_EMATCH_META | |
663 | tristate "Metadata" | |
664 | depends on NET_EMATCH | |
665 | ---help--- | |
bb7e8c5a | 666 | Say Y here if you want to be able to classify packets based on |
1da177e4 LT |
667 | metadata such as load average, netfilter attributes, socket |
668 | attributes and routing decisions. | |
669 | ||
670 | To compile this code as a module, choose M here: the | |
671 | module will be called em_meta. | |
672 | ||
d675c989 TG |
673 | config NET_EMATCH_TEXT |
674 | tristate "Textsearch" | |
675 | depends on NET_EMATCH | |
f2d368fa | 676 | select TEXTSEARCH |
f7704347 | 677 | select TEXTSEARCH_KMP |
29cb9f9c | 678 | select TEXTSEARCH_BM |
f7704347 | 679 | select TEXTSEARCH_FSM |
d675c989 | 680 | ---help--- |
52ab4ac2 | 681 | Say Y here if you want to be able to classify packets based on |
f7704347 | 682 | textsearch comparisons. |
d675c989 TG |
683 | |
684 | To compile this code as a module, choose M here: the | |
685 | module will be called em_text. | |
686 | ||
f057bbb6 RL |
687 | config NET_EMATCH_CANID |
688 | tristate "CAN Identifier" | |
a303fbf3 | 689 | depends on NET_EMATCH && (CAN=y || CAN=m) |
f057bbb6 RL |
690 | ---help--- |
691 | Say Y here if you want to be able to classify CAN frames based | |
692 | on CAN Identifier. | |
693 | ||
694 | To compile this code as a module, choose M here: the | |
695 | module will be called em_canid. | |
696 | ||
6d4fa852 FW |
697 | config NET_EMATCH_IPSET |
698 | tristate "IPset" | |
699 | depends on NET_EMATCH && IP_SET | |
700 | ---help--- | |
701 | Say Y here if you want to be able to classify packets based on | |
702 | ipset membership. | |
703 | ||
704 | To compile this code as a module, choose M here: the | |
705 | module will be called em_ipset. | |
706 | ||
ccc007e4 EB |
707 | config NET_EMATCH_IPT |
708 | tristate "IPtables Matches" | |
709 | depends on NET_EMATCH && NETFILTER && NETFILTER_XTABLES | |
710 | ---help--- | |
711 | Say Y here to be able to classify packets based on iptables | |
712 | matches. | |
713 | Current supported match is "policy" which allows packet classification | |
714 | based on IPsec policy that was used during decapsulation | |
715 | ||
716 | To compile this code as a module, choose M here: the | |
717 | module will be called em_ipt. | |
718 | ||
1da177e4 | 719 | config NET_CLS_ACT |
52ab4ac2 | 720 | bool "Actions" |
8ec1507d | 721 | select NET_CLS |
1da177e4 | 722 | ---help--- |
52ab4ac2 TG |
723 | Say Y here if you want to use traffic control actions. Actions |
724 | get attached to classifiers and are invoked after a successful | |
725 | classification. They are used to overwrite the classification | |
726 | result, instantly drop or redirect packets, etc. | |
727 | ||
728 | A recent version of the iproute2 package is required to use | |
729 | extended matches. | |
1da177e4 LT |
730 | |
731 | config NET_ACT_POLICE | |
52ab4ac2 | 732 | tristate "Traffic Policing" |
50f699b1 | 733 | depends on NET_CLS_ACT |
1da177e4 | 734 | ---help--- |
52ab4ac2 TG |
735 | Say Y here if you want to do traffic policing, i.e. strict |
736 | bandwidth limiting. This action replaces the existing policing | |
737 | module. | |
738 | ||
739 | To compile this code as a module, choose M here: the | |
d4ae20b3 | 740 | module will be called act_police. |
1da177e4 LT |
741 | |
742 | config NET_ACT_GACT | |
52ab4ac2 | 743 | tristate "Generic actions" |
1da177e4 LT |
744 | depends on NET_CLS_ACT |
745 | ---help--- | |
52ab4ac2 TG |
746 | Say Y here to take generic actions such as dropping and |
747 | accepting packets. | |
748 | ||
749 | To compile this code as a module, choose M here: the | |
d4ae20b3 | 750 | module will be called act_gact. |
1da177e4 LT |
751 | |
752 | config GACT_PROB | |
52ab4ac2 | 753 | bool "Probability support" |
1da177e4 LT |
754 | depends on NET_ACT_GACT |
755 | ---help--- | |
52ab4ac2 | 756 | Say Y here to use the generic action randomly or deterministically. |
1da177e4 LT |
757 | |
758 | config NET_ACT_MIRRED | |
52ab4ac2 | 759 | tristate "Redirecting and Mirroring" |
1da177e4 LT |
760 | depends on NET_CLS_ACT |
761 | ---help--- | |
52ab4ac2 TG |
762 | Say Y here to allow packets to be mirrored or redirected to |
763 | other devices. | |
764 | ||
765 | To compile this code as a module, choose M here: the | |
d4ae20b3 | 766 | module will be called act_mirred. |
1da177e4 | 767 | |
5c5670fa YG |
768 | config NET_ACT_SAMPLE |
769 | tristate "Traffic Sampling" | |
770 | depends on NET_CLS_ACT | |
771 | select PSAMPLE | |
772 | ---help--- | |
773 | Say Y here to allow packet sampling tc action. The packet sample | |
774 | action consists of statistically choosing packets and sampling | |
775 | them using the psample module. | |
776 | ||
777 | To compile this code as a module, choose M here: the | |
778 | module will be called act_sample. | |
779 | ||
1da177e4 | 780 | config NET_ACT_IPT |
52ab4ac2 | 781 | tristate "IPtables targets" |
1da177e4 LT |
782 | depends on NET_CLS_ACT && NETFILTER && IP_NF_IPTABLES |
783 | ---help--- | |
3539c272 | 784 | Say Y here to be able to invoke iptables targets after successful |
52ab4ac2 TG |
785 | classification. |
786 | ||
787 | To compile this code as a module, choose M here: the | |
d4ae20b3 | 788 | module will be called act_ipt. |
1da177e4 | 789 | |
b4219952 HX |
790 | config NET_ACT_NAT |
791 | tristate "Stateless NAT" | |
792 | depends on NET_CLS_ACT | |
b4219952 HX |
793 | ---help--- |
794 | Say Y here to do stateless NAT on IPv4 packets. You should use | |
795 | netfilter for NAT unless you know what you are doing. | |
796 | ||
797 | To compile this code as a module, choose M here: the | |
d4ae20b3 | 798 | module will be called act_nat. |
b4219952 | 799 | |
1da177e4 | 800 | config NET_ACT_PEDIT |
52ab4ac2 | 801 | tristate "Packet Editing" |
1da177e4 LT |
802 | depends on NET_CLS_ACT |
803 | ---help--- | |
52ab4ac2 | 804 | Say Y here if you want to mangle the content of packets. |
1da177e4 | 805 | |
52ab4ac2 | 806 | To compile this code as a module, choose M here: the |
d4ae20b3 | 807 | module will be called act_pedit. |
1da177e4 | 808 | |
db753079 | 809 | config NET_ACT_SIMP |
52ab4ac2 | 810 | tristate "Simple Example (Debug)" |
db753079 JHS |
811 | depends on NET_CLS_ACT |
812 | ---help--- | |
52ab4ac2 TG |
813 | Say Y here to add a simple action for demonstration purposes. |
814 | It is meant as an example and for debugging purposes. It will | |
815 | print a configured policy string followed by the packet count | |
816 | to the console for every packet that passes by. | |
817 | ||
818 | If unsure, say N. | |
819 | ||
820 | To compile this code as a module, choose M here: the | |
d4ae20b3 | 821 | module will be called act_simple. |
52ab4ac2 | 822 | |
ca9b0e27 AD |
823 | config NET_ACT_SKBEDIT |
824 | tristate "SKB Editing" | |
825 | depends on NET_CLS_ACT | |
826 | ---help--- | |
827 | Say Y here to change skb priority or queue_mapping settings. | |
828 | ||
829 | If unsure, say N. | |
830 | ||
831 | To compile this code as a module, choose M here: the | |
d4ae20b3 | 832 | module will be called act_skbedit. |
ca9b0e27 | 833 | |
eb4d4065 GB |
834 | config NET_ACT_CSUM |
835 | tristate "Checksum Updating" | |
7abac686 | 836 | depends on NET_CLS_ACT && INET |
ab9d226e | 837 | select LIBCRC32C |
eb4d4065 GB |
838 | ---help--- |
839 | Say Y here to update some common checksum after some direct | |
840 | packet alterations. | |
841 | ||
842 | To compile this code as a module, choose M here: the | |
843 | module will be called act_csum. | |
844 | ||
c7e2b968 JP |
845 | config NET_ACT_VLAN |
846 | tristate "Vlan manipulation" | |
847 | depends on NET_CLS_ACT | |
848 | ---help--- | |
849 | Say Y here to push or pop vlan headers. | |
850 | ||
851 | If unsure, say N. | |
852 | ||
853 | To compile this code as a module, choose M here: the | |
854 | module will be called act_vlan. | |
855 | ||
d23b8ad8 JP |
856 | config NET_ACT_BPF |
857 | tristate "BPF based action" | |
858 | depends on NET_CLS_ACT | |
859 | ---help--- | |
860 | Say Y here to execute BPF code on packets. The BPF code will decide | |
861 | if the packet should be dropped or not. | |
862 | ||
863 | If unsure, say N. | |
864 | ||
865 | To compile this code as a module, choose M here: the | |
866 | module will be called act_bpf. | |
867 | ||
22a5dc0e FF |
868 | config NET_ACT_CONNMARK |
869 | tristate "Netfilter Connection Mark Retriever" | |
870 | depends on NET_CLS_ACT && NETFILTER && IP_NF_IPTABLES | |
2dbce096 | 871 | depends on NF_CONNTRACK && NF_CONNTRACK_MARK |
22a5dc0e FF |
872 | ---help--- |
873 | Say Y here to allow retrieving of conn mark | |
874 | ||
875 | If unsure, say N. | |
876 | ||
877 | To compile this code as a module, choose M here: the | |
878 | module will be called act_connmark. | |
879 | ||
86da71b5 JHS |
880 | config NET_ACT_SKBMOD |
881 | tristate "skb data modification action" | |
882 | depends on NET_CLS_ACT | |
883 | ---help--- | |
884 | Say Y here to allow modification of skb data | |
885 | ||
886 | If unsure, say N. | |
887 | ||
888 | To compile this code as a module, choose M here: the | |
889 | module will be called act_skbmod. | |
890 | ||
ef6980b6 JHS |
891 | config NET_ACT_IFE |
892 | tristate "Inter-FE action based on IETF ForCES InterFE LFB" | |
893 | depends on NET_CLS_ACT | |
295a6e06 | 894 | select NET_IFE |
ef6980b6 JHS |
895 | ---help--- |
896 | Say Y here to allow for sourcing and terminating metadata | |
897 | For details refer to netdev01 paper: | |
898 | "Distributing Linux Traffic Control Classifier-Action Subsystem" | |
899 | Authors: Jamal Hadi Salim and Damascene M. Joachimpillai | |
900 | ||
901 | To compile this code as a module, choose M here: the | |
902 | module will be called act_ife. | |
903 | ||
d0f6dd8a AV |
904 | config NET_ACT_TUNNEL_KEY |
905 | tristate "IP tunnel metadata manipulation" | |
906 | depends on NET_CLS_ACT | |
907 | ---help--- | |
908 | Say Y here to set/release ip tunnel metadata. | |
909 | ||
910 | If unsure, say N. | |
911 | ||
912 | To compile this code as a module, choose M here: the | |
913 | module will be called act_tunnel_key. | |
914 | ||
084e2f65 JHS |
915 | config NET_IFE_SKBMARK |
916 | tristate "Support to encoding decoding skb mark on IFE action" | |
917 | depends on NET_ACT_IFE | |
084e2f65 | 918 | |
200e10f4 JHS |
919 | config NET_IFE_SKBPRIO |
920 | tristate "Support to encoding decoding skb prio on IFE action" | |
921 | depends on NET_ACT_IFE | |
200e10f4 | 922 | |
408fbc22 JHS |
923 | config NET_IFE_SKBTCINDEX |
924 | tristate "Support to encoding decoding skb tcindex on IFE action" | |
925 | depends on NET_ACT_IFE | |
408fbc22 | 926 | |
52ab4ac2 TG |
927 | config NET_CLS_IND |
928 | bool "Incoming device classification" | |
05b8b0fa | 929 | depends on NET_CLS_U32 || NET_CLS_FW |
52ab4ac2 TG |
930 | ---help--- |
931 | Say Y here to extend the u32 and fw classifier to support | |
932 | classification based on the incoming device. This option is | |
933 | likely to disappear in favour of the metadata ematch. | |
934 | ||
05b8b0fa RZ |
935 | endif # NET_SCHED |
936 | ||
85ef3e5c RD |
937 | config NET_SCH_FIFO |
938 | bool |