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