FreeBSD/Linux Kernel Cross Reference
sys/i386/conf/NOTES
1 #
2 # NOTES -- Lines that can be cut/pasted into kernel and hints configs.
3 #
4 # This file contains machine dependent kernel configuration notes. For
5 # machine independent notes, look in /sys/conf/NOTES.
6 #
7 # $FreeBSD: releng/6.2/sys/i386/conf/NOTES 162817 2006-09-29 21:21:53Z jhb $
8 #
9
10 #
11 # This directive is mandatory; it defines the architecture to be
12 # configured for; in this case, the 386 family based IBM-PC and
13 # compatibles.
14 #
15 machine i386
16
17 #
18 # We want LINT to cover profiling as well.
19 profile 2
20
21
22 #####################################################################
23 # SMP OPTIONS:
24 #
25 # The apic device enables the use of the I/O APIC for interrupt delivery.
26 # The apic device can be used in both UP and SMP kernels, but is required
27 # for SMP kernels. Thus, the apic device is not strictly an SMP option,
28 # but it is a prerequisite for SMP.
29 #
30 # Notes:
31 #
32 # HTT CPUs should only be used if they are enabled in the BIOS. For
33 # the ACPI case, ACPI only correctly tells us about any HTT CPUs if
34 # they are enabled. However, most HTT systems do not list HTT CPUs
35 # in the MP Table if they are enabled, thus we guess at the HTT CPUs
36 # for the MP Table case. However, we shouldn't try to guess and use
37 # these CPUs if HTT is disabled. Thus, HTT guessing is only enabled
38 # for the MP Table if the user explicitly asks for it via the
39 # MPTABLE_FORCE_HTT option. Do NOT use this option if you have HTT
40 # disabled in your BIOS.
41 #
42 # IPI_PREEMPTION instructs the kernel to preempt threads running on other
43 # CPUS if needed. Relies on the PREEMPTION option
44
45 # Mandatory:
46 device apic # I/O apic
47
48 # Optional:
49 options MPTABLE_FORCE_HTT # Enable HTT CPUs with the MP Table
50 options IPI_PREEMPTION
51
52 #
53 # Watchdog routines.
54 #
55 options MP_WATCHDOG
56
57 # Debugging options.
58 #
59 options KDB_STOP_NMI # Stop CPUS using NMI instead of IPI
60
61
62
63 #####################################################################
64 # CPU OPTIONS
65
66 #
67 # You must specify at least one CPU (the one you intend to run on);
68 # deleting the specification for CPUs you don't need to use may make
69 # parts of the system run faster.
70 #
71 cpu I486_CPU
72 cpu I586_CPU # aka Pentium(tm)
73 cpu I686_CPU # aka Pentium Pro(tm)
74
75 #
76 # Options for CPU features.
77 #
78 # CPU_ATHLON_SSE_HACK tries to enable SSE instructions when the BIOS has
79 # forgotten to enable them.
80 #
81 # CPU_BLUELIGHTNING_3X enables triple-clock mode on IBM Blue Lightning
82 # CPU if CPU supports it. The default is double-clock mode on
83 # BlueLightning CPU box.
84 #
85 # CPU_BLUELIGHTNING_FPU_OP_CACHE enables FPU operand cache on IBM
86 # BlueLightning CPU. It works only with Cyrix FPU, and this option
87 # should not be used with Intel FPU.
88 #
89 # CPU_BTB_EN enables branch target buffer on Cyrix 5x86 (NOTE 1).
90 #
91 # CPU_CYRIX_NO_LOCK enables weak locking for the entire address space
92 # of Cyrix 6x86 and 6x86MX CPUs by setting the NO_LOCK bit of CCR1.
93 # Otherwise, the NO_LOCK bit of CCR1 is cleared. (NOTE 3)
94 #
95 # CPU_DIRECT_MAPPED_CACHE sets L1 cache of Cyrix 486DLC CPU in direct
96 # mapped mode. Default is 2-way set associative mode.
97 #
98 # CPU_DISABLE_5X86_LSSER disables load store serialize (i.e., enables
99 # reorder). This option should not be used if you use memory mapped
100 # I/O device(s).
101 #
102 # CPU_DISABLE_CMPXCHG disables the CMPXCHG instruction on > i386 IA32
103 # machines. VmWare 3.x seems to emulate this instruction poorly, causing
104 # the guest OS to run very slowly. This problem appears to be fixed in
105 # VmWare 4.x, at least in version 4.5.2, so that enabling this option with
106 # VmWare 4.x will result in locking operations to be 20-30 times slower.
107 # Enabling this with an SMP kernel will cause the kernel to be unusable.
108 #
109 # CPU_DISABLE_SSE explicitly prevents I686_CPU from turning on SSE.
110 #
111 # CPU_ELAN enables support for AMDs ElanSC520 CPU.
112 # CPU_ELAN_PPS enables precision timestamp code.
113 # CPU_ELAN_XTAL sets the clock crystal frequency in Hz.
114 #
115 # CPU_ENABLE_LONGRUN enables support for Transmeta Crusoe LongRun
116 # technology which allows to restrict power consumption of the CPU by
117 # using group of hw.crusoe.* sysctls.
118 #
119 # CPU_FASTER_5X86_FPU enables faster FPU exception handler.
120 #
121 # CPU_GEODE is for the SC1100 Geode embedded processor. This option
122 # is necessary because the i8254 timecounter is toast.
123 #
124 # CPU_I486_ON_386 enables CPU cache on i486 based CPU upgrade products
125 # for i386 machines.
126 #
127 # CPU_IORT defines I/O clock delay time (NOTE 1). Default values of
128 # I/O clock delay time on Cyrix 5x86 and 6x86 are 0 and 7,respectively
129 # (no clock delay).
130 #
131 # CPU_L2_LATENCY specifies the L2 cache latency value. This option is used
132 # only when CPU_PPRO2CELERON is defined and Mendocino Celeron is detected.
133 # The default value is 5.
134 #
135 # CPU_LOOP_EN prevents flushing the prefetch buffer if the destination
136 # of a jump is already present in the prefetch buffer on Cyrix 5x86(NOTE
137 # 1).
138 #
139 # CPU_PPRO2CELERON enables L2 cache of Mendocino Celeron CPUs. This option
140 # is useful when you use Socket 8 to Socket 370 converter, because most Pentium
141 # Pro BIOSs do not enable L2 cache of Mendocino Celeron CPUs.
142 #
143 # CPU_RSTK_EN enables return stack on Cyrix 5x86 (NOTE 1).
144 #
145 # CPU_SOEKRIS enables support www.soekris.com hardware.
146 #
147 # CPU_SUSP_HLT enables suspend on HALT. If this option is set, CPU
148 # enters suspend mode following execution of HALT instruction.
149 #
150 # CPU_UPGRADE_HW_CACHE eliminates unneeded cache flush instruction(s).
151 #
152 # CPU_WT_ALLOC enables write allocation on Cyrix 6x86/6x86MX and AMD
153 # K5/K6/K6-2 CPUs.
154 #
155 # CYRIX_CACHE_WORKS enables CPU cache on Cyrix 486 CPUs with cache
156 # flush at hold state.
157 #
158 # CYRIX_CACHE_REALLY_WORKS enables (1) CPU cache on Cyrix 486 CPUs
159 # without cache flush at hold state, and (2) write-back CPU cache on
160 # Cyrix 6x86 whose revision < 2.7 (NOTE 2).
161 #
162 # NO_F00F_HACK disables the hack that prevents Pentiums (and ONLY
163 # Pentiums) from locking up when a LOCK CMPXCHG8B instruction is
164 # executed. This option is only needed if I586_CPU is also defined,
165 # and should be included for any non-Pentium CPU that defines it.
166 #
167 # NO_MEMORY_HOLE is an optimisation for systems with AMD K6 processors
168 # which indicates that the 15-16MB range is *definitely* not being
169 # occupied by an ISA memory hole.
170 #
171 # NOTE 1: The options, CPU_BTB_EN, CPU_LOOP_EN, CPU_IORT,
172 # CPU_LOOP_EN and CPU_RSTK_EN should not be used because of CPU bugs.
173 # These options may crash your system.
174 #
175 # NOTE 2: If CYRIX_CACHE_REALLY_WORKS is not set, CPU cache is enabled
176 # in write-through mode when revision < 2.7. If revision of Cyrix
177 # 6x86 >= 2.7, CPU cache is always enabled in write-back mode.
178 #
179 # NOTE 3: This option may cause failures for software that requires
180 # locked cycles in order to operate correctly.
181 #
182 options CPU_ATHLON_SSE_HACK
183 options CPU_BLUELIGHTNING_3X
184 options CPU_BLUELIGHTNING_FPU_OP_CACHE
185 options CPU_BTB_EN
186 options CPU_DIRECT_MAPPED_CACHE
187 options CPU_DISABLE_5X86_LSSER
188 options CPU_DISABLE_CMPXCHG
189 #options CPU_DISABLE_SSE
190 options CPU_ELAN
191 options CPU_ELAN_PPS
192 options CPU_ELAN_XTAL=32768000
193 options CPU_ENABLE_LONGRUN
194 options CPU_FASTER_5X86_FPU
195 options CPU_GEODE
196 options CPU_I486_ON_386
197 options CPU_IORT
198 options CPU_L2_LATENCY=5
199 options CPU_LOOP_EN
200 options CPU_PPRO2CELERON
201 options CPU_RSTK_EN
202 options CPU_SOEKRIS
203 options CPU_SUSP_HLT
204 options CPU_UPGRADE_HW_CACHE
205 options CPU_WT_ALLOC
206 options CYRIX_CACHE_WORKS
207 options CYRIX_CACHE_REALLY_WORKS
208 #options NO_F00F_HACK
209
210 # Debug options
211 options NPX_DEBUG # enable npx debugging
212
213 #
214 # PERFMON causes the driver for Pentium/Pentium Pro performance counters
215 # to be compiled. See perfmon(4) for more information.
216 #
217 options PERFMON
218
219 #
220 # XBOX causes the kernel to be bootable on the Microsoft XBox console system.
221 # The resulting kernel will auto-detect whether it is being booted on a XBox,
222 # so kernels compiled with this option will also work on an ordinary PC.
223 # This option requires I686_CPU.
224 #
225 # xboxfb includes support for the XBox frame buffer device. It is fully USB-
226 # keyboard aware, and will only be used if an xbox is detected. This option
227 # (obviously) requires XBOX support in your kernel, and depends on syscons(4)
228 # as well.
229 #
230 options XBOX
231 device xboxfb
232
233
234 #####################################################################
235 # NETWORKING OPTIONS
236
237 #
238 # DEVICE_POLLING adds support for mixed interrupt-polling handling
239 # of network device drivers, which has significant benefits in terms
240 # of robustness to overloads and responsivity, as well as permitting
241 # accurate scheduling of the CPU time between kernel network processing
242 # and other activities. The drawback is a moderate (up to 1/HZ seconds)
243 # potential increase in response times.
244 # It is strongly recommended to use HZ=1000 or 2000 with DEVICE_POLLING
245 # to achieve smoother behaviour.
246 # Additionally, you can enable/disable polling at runtime with help of
247 # the ifconfig(8) utility, and select the CPU fraction reserved to
248 # userland with the sysctl variable kern.polling.user_frac
249 # (default 50, range 0..100).
250 #
251 # Not all device drivers support this mode of operation at the time of
252 # this writing. See polling(4) for more details.
253
254 options DEVICE_POLLING
255
256
257 #####################################################################
258 # CLOCK OPTIONS
259
260 # The following options are used for debugging clock behavior only, and
261 # should not be used for production systems.
262
263 # CLK_CALIBRATION_LOOP causes clock calibration to be run in a loop at
264 # startup until the user presses a key. (The i8254 clock is always
265 # calibrated relative to the RTC (mc146818a) and this option causes the
266 # calibration to be repeated.)
267 options CLK_CALIBRATION_LOOP
268
269 # CLK_USE_I8254_CALIBRATION causes the calibrated frequency of the i8254
270 # clock to actually be used.
271 options CLK_USE_I8254_CALIBRATION
272
273
274 #####################################################################
275 # MISCELLANEOUS DEVICES AND OPTIONS
276
277 device speaker #Play IBM BASIC-style noises out your speaker
278 hint.speaker.0.at="isa"
279 hint.speaker.0.port="0x61"
280 device gzip #Exec gzipped a.out's. REQUIRES COMPAT_AOUT!
281 device apm_saver # Requires APM
282
283
284 #####################################################################
285 # HARDWARE BUS CONFIGURATION
286
287 #
288 # ISA bus
289 #
290 device isa # Required by npx(4)
291
292 #
293 # Options for `isa':
294 #
295 # AUTO_EOI_1 enables the `automatic EOI' feature for the master 8259A
296 # interrupt controller. This saves about 0.7-1.25 usec for each interrupt.
297 # This option breaks suspend/resume on some portables.
298 #
299 # AUTO_EOI_2 enables the `automatic EOI' feature for the slave 8259A
300 # interrupt controller. This saves about 0.7-1.25 usec for each interrupt.
301 # Automatic EOI is documented not to work for for the slave with the
302 # original i8259A, but it works for some clones and some integrated
303 # versions.
304 #
305 # MAXMEM specifies the amount of RAM on the machine; if this is not
306 # specified, FreeBSD will first read the amount of memory from the CMOS
307 # RAM, so the amount of memory will initially be limited to 64MB or 16MB
308 # depending on the BIOS. If the BIOS reports 64MB, a memory probe will
309 # then attempt to detect the installed amount of RAM. If this probe
310 # fails to detect >64MB RAM you will have to use the MAXMEM option.
311 # The amount is in kilobytes, so for a machine with 128MB of RAM, it would
312 # be 131072 (128 * 1024).
313 #
314 # BROKEN_KEYBOARD_RESET disables the use of the keyboard controller to
315 # reset the CPU for reboot. This is needed on some systems with broken
316 # keyboard controllers.
317
318 options AUTO_EOI_1
319 #options AUTO_EOI_2
320
321 options MAXMEM=(128*1024)
322 #options BROKEN_KEYBOARD_RESET
323
324 #
325 # EISA bus
326 #
327 # The EISA bus device is `eisa'. It provides auto-detection and
328 # configuration support for all devices on the EISA bus.
329
330 device eisa
331
332 # By default, only 10 EISA slots are probed, since the slot numbers
333 # above clash with the configuration address space of the PCI subsystem,
334 # and the EISA probe is not very smart about this. This is sufficient
335 # for most machines, but in particular the HP NetServer LC series comes
336 # with an onboard AIC7770 dual-channel SCSI controller on EISA slot #11,
337 # thus you need to bump this figure to 12 for them.
338 options EISA_SLOTS=12
339
340 #
341 # MCA bus:
342 #
343 # The MCA bus device is `mca'. It provides auto-detection and
344 # configuration support for all devices on the MCA bus.
345 # No hints are required for MCA.
346
347 device mca
348
349 #
350 # PCI bus & PCI options:
351 #
352 device pci
353
354 #
355 # AGP GART support
356 device agp
357
358
359 #####################################################################
360 # HARDWARE DEVICE CONFIGURATION
361
362 # To include support for VGA VESA video modes
363 options VESA
364
365 # Turn on extra debugging checks and output for VESA support.
366 options VESA_DEBUG
367
368 # The pcvt console driver (vt220 compatible).
369 device vt
370 hint.vt.0.at="isa"
371 options XSERVER # support for running an X server on vt
372 options FAT_CURSOR # start with block cursor
373 # This PCVT option is for keyboards such as those used on really old ThinkPads
374 options PCVT_SCANSET=2
375 # Other PCVT options are documented in pcvt(4).
376 options PCVT_24LINESDEF
377 options PCVT_CTRL_ALT_DEL
378 options PCVT_META_ESC
379 options PCVT_NSCREENS=9
380 options PCVT_PRETTYSCRNS
381 options PCVT_SCREENSAVER
382 options PCVT_USEKBDSEC
383 options PCVT_VT220KEYB
384 options PCVT_GREENSAVER
385
386 #
387 # The Numeric Processing eXtension driver. This is non-optional.
388 device npx
389 hint.npx.0.flags="0x0"
390 hint.npx.0.irq="13"
391
392 #
393 # `flags' for npx0:
394 # 0x01 don't use the npx registers to optimize bcopy.
395 # 0x02 don't use the npx registers to optimize bzero.
396 # 0x04 don't use the npx registers to optimize copyin or copyout.
397 # The npx registers are normally used to optimize copying and zeroing when
398 # all of the following conditions are satisfied:
399 # I586_CPU is an option
400 # the cpu is an i586 (perhaps not a Pentium)
401 # the probe for npx0 succeeds
402 # INT 16 exception handling works.
403 # Then copying and zeroing using the npx registers is normally 30-100% faster.
404 # The flags can be used to control cases where it doesn't work or is slower.
405 # Setting them at boot time using hints works right (the optimizations
406 # are not used until later in the bootstrap when npx0 is attached).
407 # Flag 0x08 automatically disables the i586 optimized routines.
408 #
409
410 #
411 # Optional devices:
412 #
413
414 # 3Dfx Voodoo Graphics, Voodoo II /dev/3dfx CDEV support. This will create
415 # the /dev/3dfx0 device to work with glide implementations. This should get
416 # linked to /dev/3dfx and /dev/voodoo. Note that this is not the same as
417 # the tdfx DRI module from XFree86 and is completely unrelated.
418 #
419 # To enable Linuxulator support, one must also include COMPAT_LINUX in the
420 # config as well, or you will not have the dependencies. The other option
421 # is to load both as modules.
422
423 device tdfx # Enable 3Dfx Voodoo support
424 options TDFX_LINUX # Enable Linuxulator support
425
426 #
427 # ACPI support using the Intel ACPI Component Architecture reference
428 # implementation.
429 #
430 # ACPI_DEBUG enables the use of the debug.acpi.level and debug.acpi.layer
431 # kernel environment variables to select initial debugging levels for the
432 # Intel ACPICA code. (Note that the Intel code must also have USE_DEBUGGER
433 # defined when it is built).
434 #
435 # ACPI_NO_SEMAPHORES makes the AcpiOs*Semaphore routines a no-op.
436 #
437 # ACPICA_PEDANTIC enables strict checking of AML. Our default is to
438 # relax these checks to allow code generated by the Microsoft compiler
439 # to still execute.
440 #
441 # Note that building ACPI into the kernel is deprecated; the module is
442 # normally loaded automatically by the loader.
443
444 device acpi
445 options ACPI_DEBUG
446 #!options ACPI_NO_SEMAPHORES
447 #!options ACPICA_PEDANTIC
448
449 # ACPI Asus Extras (LCD backlight/brightness, video output, etc.)
450 device acpi_asus
451
452 # ACPI Fujitsu Extras (Buttons)
453 device acpi_fujitsu
454
455 # ACPI extras driver for IBM laptops
456 device acpi_ibm
457
458 # ACPI Panasonic Extras (LCD backlight/brightness, video output, etc.)
459 device acpi_panasonic
460
461 # ACPI Sony extra (LCD brightness)
462 device acpi_sony
463
464 # ACPI Toshiba Extras (LCD backlight/brightness, video output, etc.)
465 device acpi_toshiba
466
467 # ACPI Video Extensions (LCD backlight/brightness, video output, etc.)
468 device acpi_video
469
470 # The cpufreq(4) driver provides support for non-ACPI CPU frequency control
471 device cpufreq
472
473 # Direct Rendering modules for 3D acceleration.
474 device drm # DRM core module required by DRM drivers
475 device i915drm # Intel i830 through i915
476 device mach64drm # ATI Rage Pro, Rage Mobility P/M, Rage XL
477 device mgadrm # AGP Matrox G200, G400, G450, G550
478 device r128drm # ATI Rage 128
479 device radeondrm # ATI Radeon
480 device savagedrm # S3 Savage3D, Savage4
481 device sisdrm # SiS 300/305, 540, 630
482 device tdfxdrm # 3dfx Voodoo 3/4/5 and Banshee
483 options DRM_DEBUG # Include debug printfs (slow)
484
485 #
486 # mse: Logitech and ATI InPort bus mouse ports
487
488 device mse
489 hint.mse.0.at="isa"
490 hint.mse.0.port="0x23c"
491 hint.mse.0.irq="5"
492
493 #
494 # Network interfaces:
495 #
496
497 # ar: Arnet SYNC/570i hdlc sync 2/4 port V.35/X.21 serial driver
498 # (requires sppp)
499 # arl: Aironet Arlan 655 wireless adapters.
500 # ath: Atheros a/b/g WiFi adapters (requires ath_hal and wlan)
501 # ce: Cronyx Tau-PCI/32 sync single/dual port G.703/E1 serial adaptor
502 # with 32 HDLC subchannels (requires sppp (default), or NETGRAPH if
503 # NETGRAPH_CRONYX is configured)
504 # cp: Cronyx Tau-PCI sync single/dual/four port
505 # V.35/RS-232/RS-530/RS-449/X.21/G.703/E1/E3/T3/STS-1
506 # serial adaptor (requires sppp (default), or NETGRAPH if
507 # NETGRAPH_CRONYX is configured)
508 # ctau: Cronyx Tau sync dual port V.35/RS-232/RS-530/RS-449/X.21/G.703/E1
509 # serial adaptor (requires sppp (default), or NETGRAPH if
510 # NETGRAPH_CRONYX is configured)
511 # cx: Cronyx Sigma multiport sync/async adapter (requires sppp (default),
512 # or NETGRAPH if NETGRAPH_CRONYX is configured)
513 # ed: Western Digital and SMC 80xx; Novell NE1000 and NE2000; 3Com 3C503
514 # HP PC Lan+, various PC Card devices (refer to etc/defaults/pccard.conf)
515 # (requires miibus)
516 # el: 3Com 3C501 (slow!)
517 # ie: AT&T StarLAN 10 and EN100; 3Com 3C507; unknown NI5210;
518 # Intel EtherExpress
519 # lnc: Lance/PCnet cards (Isolan, Novell NE2100, NE32-VL, AMD Am7990 and
520 # Am79C960)
521 # nve: nVidia nForce MCP on-board Ethernet Networking
522 # oltr: Olicom ISA token-ring adapters OC-3115, OC-3117, OC-3118 and OC-3133.
523 # Olicom PCI token-ring adapters OC-3136, OC-3137, OC-3139, OC-3140,
524 # OC-3141, OC-3540 and OC-3250.
525 # sbni: Granch SBNI12-xx ISA and PCI adapters
526 # sr: RISCom/N2 hdlc sync 1/2 port V.35/X.21 serial driver (requires sppp)
527 # wl: Lucent Wavelan (ISA card only).
528
529 # Order for ISA/EISA devices is important here
530
531 device ar
532 hint.ar.0.at="isa"
533 hint.ar.0.port="0x300"
534 hint.ar.0.irq="10"
535 hint.ar.0.maddr="0xd0000"
536 device arl
537 hint.arl.0.at="isa"
538 hint.arl.0.irq="9"
539 hint.arl.0.maddr="0xd0000"
540 device ce
541 device cp
542 device ctau
543 hint.ctau.0.at="isa"
544 hint.ctau.0.port="0x240"
545 hint.ctau.0.irq="15"
546 hint.ctau.0.drq="7"
547 device cx
548 hint.cx.0.at="isa"
549 hint.cx.0.port="0x240"
550 hint.cx.0.irq="15"
551 hint.cx.0.drq="7"
552 #options NETGRAPH_CRONYX # Enable NETGRAPH support for Cronyx adapter(s)
553 device ed
554 #options ED_NO_MIIBUS # Disable ed miibus support
555 options ED_3C503
556 options ED_HPP
557 options ED_SIC
558 hint.ed.0.at="isa"
559 hint.ed.0.port="0x280"
560 hint.ed.0.irq="5"
561 hint.ed.0.maddr="0xd8000"
562 device el
563 hint.el.0.at="isa"
564 hint.el.0.port="0x300"
565 hint.el.0.irq="9"
566 device ie # Hints only required for Starlan
567 hint.ie.2.at="isa"
568 hint.ie.2.port="0x300"
569 hint.ie.2.irq="5"
570 hint.ie.2.maddr="0xd0000"
571 device lnc
572 hint.lnc.0.at="isa"
573 hint.lnc.0.port="0x280"
574 hint.lnc.0.irq="10"
575 hint.lnc.0.drq="0"
576 device nve # nVidia nForce MCP on-board Ethernet Networking
577 device sbni
578 hint.sbni.0.at="isa"
579 hint.sbni.0.port="0x210"
580 hint.sbni.0.irq="0xefdead"
581 hint.sbni.0.flags="0"
582 device sr
583 hint.sr.0.at="isa"
584 hint.sr.0.port="0x300"
585 hint.sr.0.irq="5"
586 hint.sr.0.maddr="0xd0000"
587 device oltr
588 hint.oltr.0.at="isa"
589 device wl
590 hint.wl.0.at="isa"
591 hint.wl.0.port="0x300"
592 options WLCACHE # enables the signal-strength cache
593 options WLDEBUG # enables verbose debugging output
594
595 device ath
596 device ath_hal # Atheros HAL (includes binary component)
597 #device ath_rate_amrr # AMRR rate control for ath driver
598 #device ath_rate_onoe # Onoe rate control for ath driver
599 device ath_rate_sample # SampleRate rate control for the ath driver
600 #device wlan # 802.11 layer
601
602 #
603 # ATA raid adapters
604 #
605 device pst
606
607 #
608 # Areca 11xx and 12xx series of SATA II RAID controllers.
609 # CAM is required.
610 #
611 device arcmsr # Areca SATA II RAID
612
613 #
614 # 3ware 9000 series PATA/SATA RAID controller driver and options.
615 # The driver is implemented as a SIM, and so, needs the CAM infrastructure.
616 #
617 options TWA_DEBUG # 0-10; 10 prints the most messages.
618 options TWA_FLASH_FIRMWARE # firmware image bundled when defined.
619 device twa # 3ware 9000 series PATA/SATA RAID
620
621 #
622 # SCSI host adapters:
623 #
624 # ncv: NCR 53C500 based SCSI host adapters.
625 # nsp: Workbit Ninja SCSI-3 based PC Card SCSI host adapters.
626 # stg: TMC 18C30, 18C50 based SCSI host adapters.
627
628 device ncv
629 device nsp
630 device stg
631 hint.stg.0.at="isa"
632 hint.stg.0.port="0x140"
633 hint.stg.0.port="11"
634
635 #
636 # Adaptec FSA RAID controllers, including integrated DELL controllers,
637 # the Dell PERC 2/QC and the HP NetRAID-4M
638 device aac
639 device aacp # SCSI Passthrough interface (optional, CAM required)
640
641 #
642 # Highpoint RocketRAID 182x. This is really just software RAID on a
643 # Marvell SATA chip.
644 device hptmv
645
646 #
647 # Highpoint RocketRAID 232x. This is software RAID but with hardware
648 # acceleration assistance for RAID_5.
649 device rr232x
650
651 #
652 # IBM (now Adaptec) ServeRAID controllers
653 device ips
654
655 #
656 # SafeNet crypto driver: can be moved to the MI NOTES as soon as
657 # it's tested on a big-endian machine
658 #
659 device safe # SafeNet 1141
660 options SAFE_DEBUG # enable debugging support: hw.safe.debug
661 options SAFE_RNDTEST # enable rndtest support
662
663 #####################################################################
664
665 #
666 # Miscellaneous hardware:
667 #
668 # apm: Laptop Advanced Power Management (experimental)
669 # cy: Cyclades serial driver
670 # digi: Digiboard driver
671 # ipmi: Intelligent Platform Management Interface
672 # pmtimer: Timer device driver for power management events (APM or ACPI)
673 # spic: Sony Programmable I/O controller (VAIO notebooks)
674
675 # Notes on APM
676 # The flags takes the following meaning for apm0:
677 # 0x0020 Statclock is broken.
678
679 # Notes on the Specialix SI/XIO driver:
680 # The host card is memory, not IO mapped.
681 # The Rev 1 host cards use a 64K chunk, on a 32K boundary.
682 # The Rev 2 host cards use a 32K chunk, on a 32K boundary.
683 # The cards can use an IRQ of 11, 12 or 15.
684
685 # Notes on the Sony Programmable I/O controller
686 # This is a temporary driver that should someday be replaced by something
687 # that hooks into the ACPI layer. The device is hooked to the PIIX4's
688 # General Device 10 decoder, which means you have to fiddle with PCI
689 # registers to map it in, even though it is otherwise treated here as
690 # an ISA device. At the moment, the driver polls, although the device
691 # is capable of generating interrupts. It largely undocumented.
692 # The port location in the hint is where you WANT the device to be
693 # mapped. 0x10a0 seems to be traditional. At the moment the jogdial
694 # is the only thing truly supported, but apparently a fair percentage
695 # of the Vaio extra features are controlled by this device.
696
697 device apm
698 hint.apm.0.flags="0x20"
699 device cy
700 options CY_PCI_FASTINTR # Use with cy_pci unless irq is shared
701 hint.cy.0.at="isa"
702 hint.cy.0.irq="10"
703 hint.cy.0.maddr="0xd4000"
704 hint.cy.0.msize="0x2000"
705 device digi
706 hint.digi.0.at="isa"
707 hint.digi.0.port="0x104"
708 hint.digi.0.maddr="0xd0000"
709 # BIOS & FEP/OS components of device digi.
710 device digi_CX
711 device digi_CX_PCI
712 device digi_EPCX
713 device digi_EPCX_PCI
714 device digi_Xe
715 device digi_Xem
716 device digi_Xr
717 device ipmi
718 # Parallel (8255 PPI) basic I/O (mode 0) port (e.g. Advantech PCL-724)
719 device pbio
720 hint.pbio.0.at="isa"
721 hint.pbio.0.port="0x360"
722 device pmtimer # Adjust system timer at wakeup time
723 device spic
724 hint.spic.0.at="isa"
725 hint.spic.0.port="0x10a0"
726 # sx device is i386 and pc98 only at the moment.
727 device sx
728 options SX_DEBUG
729 # HOT1 Xilinx 6200 card (http://www.vcc.com/)
730 device xrpu
731
732 #
733 # Laptop/Notebook options:
734 #
735 # See also:
736 # apm under `Miscellaneous hardware'
737 # above.
738
739 # For older notebooks that signal a powerfail condition (external
740 # power supply dropped, or battery state low) by issuing an NMI:
741
742 options POWERFAIL_NMI # make it beep instead of panicing
743
744 #
745 # I2C Bus
746 #
747 # Philips i2c bus support is provided by the `iicbus' device.
748 #
749 # Supported interfaces:
750 # pcf Philips PCF8584 ISA-bus controller
751 #
752 device pcf
753 hint.pcf.0.at="isa"
754 hint.pcf.0.port="0x320"
755 hint.pcf.0.irq="5"
756
757 #
758 # Hardware watchdog timers:
759 #
760 # ichwd: Intel ICH watchdog timer
761 #
762 device ichwd
763
764 #---------------------------------------------------------------------------
765 # ISDN4BSD
766 #
767 # See /usr/share/examples/isdn/ROADMAP for an introduction to isdn4bsd.
768 #
769 # i4b passive ISDN cards support contains the following hardware drivers:
770 #
771 # isic - Siemens/Infineon ISDN ISAC/HSCX/IPAC chipset driver
772 # iwic - Winbond W6692 PCI bus ISDN S/T interface controller
773 # ifpi - AVM Fritz!Card PCI driver
774 # ifpi2 - AVM Fritz!Card PCI version 2 driver
775 # ihfc - Cologne Chip HFC ISA/ISA-PnP chipset driver
776 # ifpnp - AVM Fritz!Card PnP driver
777 # itjc - Siemens ISAC / TJNet Tiger300/320 chipset
778 #
779 # i4b active ISDN cards support contains the following hardware drivers:
780 #
781 # iavc - AVM B1 PCI, AVM B1 ISA, AVM T1
782 #
783 # Note that the ``options'' (if given) and ``device'' lines must BOTH
784 # be uncommented to enable support for a given card !
785 #
786 # In addition to a hardware driver (and probably an option) the mandatory
787 # ISDN protocol stack devices and the mandatory support device must be
788 # enabled as well as one or more devices from the optional devices section.
789 #
790 #---------------------------------------------------------------------------
791 # isic driver (Siemens/Infineon chipsets)
792 #
793 device isic
794 #
795 # ISA bus non-PnP Cards:
796 # ----------------------
797 #
798 # Teles S0/8 or Niccy 1008
799 options TEL_S0_8
800 hint.isic.0.at="isa"
801 hint.isic.0.maddr="0xd0000"
802 hint.isic.0.irq="5"
803 hint.isic.0.flags="1"
804 #
805 # Teles S0/16 or Creatix ISDN-S0 or Niccy 1016
806 options TEL_S0_16
807 hint.isic.0.at="isa"
808 hint.isic.0.port="0xd80"
809 hint.isic.0.maddr="0xd0000"
810 hint.isic.0.irq="5"
811 hint.isic.0.flags="2"
812 #
813 # Teles S0/16.3
814 options TEL_S0_16_3
815 hint.isic.0.at="isa"
816 hint.isic.0.port="0xd80"
817 hint.isic.0.irq="5"
818 hint.isic.0.flags="3"
819 #
820 # AVM A1 or AVM Fritz!Card
821 options AVM_A1
822 hint.isic.0.at="isa"
823 hint.isic.0.port="0x340"
824 hint.isic.0.irq="5"
825 hint.isic.0.flags="4"
826 #
827 # USRobotics Sportster ISDN TA intern
828 options USR_STI
829 hint.isic.0.at="isa"
830 hint.isic.0.port="0x268"
831 hint.isic.0.irq="5"
832 hint.isic.0.flags="7"
833 #
834 # ITK ix1 Micro ( < V.3, non-PnP version )
835 options ITKIX1
836 hint.isic.0.at="isa"
837 hint.isic.0.port="0x398"
838 hint.isic.0.irq="10"
839 hint.isic.0.flags="18"
840 #
841 # ELSA PCC-16
842 options ELSA_PCC16
843 hint.isic.0.at="isa"
844 hint.isic.0.port="0x360"
845 hint.isic.0.irq="10"
846 hint.isic.0.flags="20"
847 #
848 # ISA bus PnP Cards:
849 # ------------------
850 #
851 # Teles S0/16.3 PnP
852 options TEL_S0_16_3_P
853 #
854 # Creatix ISDN-S0 P&P
855 options CRTX_S0_P
856 #
857 # Dr. Neuhaus Niccy Go@
858 options DRN_NGO
859 #
860 # Sedlbauer Win Speed
861 options SEDLBAUER
862 #
863 # Dynalink IS64PH
864 options DYNALINK
865 #
866 # ELSA QuickStep 1000pro ISA
867 options ELSA_QS1ISA
868 #
869 # Siemens I-Surf 2.0
870 options SIEMENS_ISURF2
871 #
872 # Asuscom ISDNlink 128K ISA
873 options ASUSCOM_IPAC
874 #
875 # Eicon Diehl DIVA 2.0 and 2.02
876 options EICON_DIVA
877 #
878 # Compaq Microcom 610 ISDN card (Compaq series PSB2222I)
879 options COMPAQ_M610
880 #
881 # PCI bus Cards:
882 # --------------
883 #
884 # ELSA MicroLink ISDN/PCI (same as ELSA QuickStep 1000pro PCI)
885 options ELSA_QS1PCI
886 #
887 #---------------------------------------------------------------------------
888 # ifpnp driver for AVM Fritz!Card PnP
889 #
890 # AVM Fritz!Card PnP
891 device ifpnp
892 #
893 #---------------------------------------------------------------------------
894 # ihfc driver for Cologne Chip ISA chipsets (experimental!)
895 #
896 # Teles 16.3c ISA PnP
897 # AcerISDN P10 ISA PnP
898 # TELEINT ISDN SPEED No.1
899 device ihfc
900 #
901 #---------------------------------------------------------------------------
902 # ifpi driver for AVM Fritz!Card PCI
903 #
904 # AVM Fritz!Card PCI
905 device ifpi
906 #
907 #---------------------------------------------------------------------------
908 # ifpi2 driver for AVM Fritz!Card PCI version 2
909 #
910 # AVM Fritz!Card PCI version 2
911 device ifpi2
912 #
913 #---------------------------------------------------------------------------
914 # iwic driver for Winbond W6692 chipset
915 #
916 # ASUSCOM P-IN100-ST-D (and other Winbond W6692 based cards)
917 device iwic
918 #
919 #---------------------------------------------------------------------------
920 # itjc driver for Siemens ISAC / TJNet Tiger300/320 chipset
921 #
922 # Traverse Technologies NETjet-S
923 # Teles PCI-TJ
924 device itjc
925 #
926 #---------------------------------------------------------------------------
927 # iavc driver (AVM active cards, needs i4bcapi driver!)
928 #
929 device iavc
930 #
931 # AVM B1 ISA bus (PnP mode not supported!)
932 # ----------------------------------------
933 hint.iavc.0.at="isa"
934 hint.iavc.0.port="0x150"
935 hint.iavc.0.irq="5"
936 #
937 #---------------------------------------------------------------------------
938 # ISDN Protocol Stack - mandatory for all hardware drivers
939 #
940 # Q.921 / layer 2 - i4b passive cards D channel handling
941 device i4bq921
942 #
943 # Q.931 / layer 3 - i4b passive cards D channel handling
944 device i4bq931
945 #
946 # layer 4 - i4b common passive and active card handling
947 device i4b
948 #
949 #---------------------------------------------------------------------------
950 # ISDN devices - mandatory for all hardware drivers
951 #
952 # userland driver to do ISDN tracing (for passive cards only)
953 device i4btrc
954 options NI4BTRC=4
955 #
956 # userland driver to control the whole thing
957 device i4bctl
958 #
959 #---------------------------------------------------------------------------
960 # ISDN devices - optional
961 #
962 # userland driver for access to raw B channel
963 device i4brbch
964 options NI4BRBCH=4
965 #
966 # userland driver for telephony
967 device i4btel
968 options NI4BTEL=2
969 #
970 # network driver for IP over raw HDLC ISDN
971 device i4bipr
972 options NI4BIPR=4
973 # enable VJ header compression detection for ipr i/f
974 options IPR_VJ
975 # enable logging of the first n IP packets to isdnd (n=32 here)
976 options IPR_LOG=32
977 #
978 # network driver for sync PPP over ISDN; requires an equivalent
979 # number of sppp device to be configured
980 device i4bisppp
981 options NI4BISPPP=4
982 #
983 # B-channel interface to the netgraph subsystem
984 device i4bing
985 options NI4BING=2
986 #
987 # CAPI driver needed for active ISDN cards (see iavc driver above)
988 device i4bcapi
989 #
990 #---------------------------------------------------------------------------
991
992 #
993 # System Management Bus (SMB)
994 #
995 options ENABLE_ALART # Control alarm on Intel intpm driver
996
997 #
998 # Set the number of PV entries per process. Increasing this can
999 # stop panics related to heavy use of shared memory. However, that can
1000 # (combined with large amounts of physical memory) cause panics at
1001 # boot time due the kernel running out of VM space.
1002 #
1003 # If you're tweaking this, you might also want to increase the sysctls
1004 # "vm.v_free_min", "vm.v_free_reserved", and "vm.v_free_target".
1005 #
1006 # The value below is the one more than the default.
1007 #
1008 options PMAP_SHPGPERPROC=201
1009
1010 #
1011 # Change the size of the kernel virtual address space. Due to
1012 # constraints in loader(8) on i386, this must be a multiple of 4.
1013 # 256 = 1 GB of kernel address space. Increasing this also causes
1014 # a reduction of the address space in user processes. 512 splits
1015 # the 4GB cpu address space in half (2GB user, 2GB kernel). For PAE
1016 # kernels, the value will need to be double non-PAE. A value of 1024
1017 # for PAE kernels is necessary to split the address space in half.
1018 # This will likely need to be increased to handle memory sizes >4GB.
1019 # PAE kernels default to a value of 512.
1020 #
1021 options KVA_PAGES=260
1022
1023
1024 #####################################################################
1025 # ABI Emulation
1026
1027 # Enable iBCS2 runtime support for SCO and ISC binaries
1028 options IBCS2
1029
1030 # Emulate spx device for client side of SVR3 local X interface
1031 options SPX_HACK
1032
1033 # Enable Linux ABI emulation
1034 options COMPAT_LINUX
1035
1036 # Enable i386 a.out binary support
1037 options COMPAT_AOUT
1038
1039 # Enable the linux-like proc filesystem support (requires COMPAT_LINUX
1040 # and PSEUDOFS)
1041 options LINPROCFS
1042
1043 #Enable the linux-like sys filesystem support (requires COMPAT_LINUX)
1044 options LINSYSFS
1045
1046 #
1047 # SysVR4 ABI emulation
1048 #
1049 # The svr4 ABI emulator can be statically compiled into the kernel or loaded as
1050 # a KLD module.
1051 # The STREAMS network emulation code can also be compiled statically or as a
1052 # module. If loaded as a module, it must be loaded before the svr4 module
1053 # (the /usr/sbin/svr4 script does this for you). If compiling statically,
1054 # the `streams' device must be configured into any kernel which also
1055 # specifies COMPAT_SVR4. It is possible to have a statically-configured
1056 # STREAMS device and a dynamically loadable svr4 emulator; the /usr/sbin/svr4
1057 # script understands that it doesn't need to load the `streams' module under
1058 # those circumstances.
1059 # Caveat: At this time, `options KTRACE' is required for the svr4 emulator
1060 # (whether static or dynamic).
1061 #
1062 options COMPAT_SVR4 # build emulator statically
1063 options DEBUG_SVR4 # enable verbose debugging
1064 device streams # STREAMS network driver (required for svr4).
1065
1066
1067 #####################################################################
1068 # VM OPTIONS
1069
1070 # Disable the 4 MByte page PSE CPU feature. The PSE feature allows the
1071 # kernel to use 4 MByte pages to map the kernel instead of 4k pages.
1072 # This saves on the amount of memory needed for page tables needed to
1073 # map the kernel. You should only disable this feature as a temporary
1074 # workaround if you are having problems with it enabled.
1075 #
1076 #options DISABLE_PSE
1077
1078 # Disable the global pages PGE CPU feature. The PGE feature allows pages
1079 # to be marked with the PG_G bit. TLB entries for these pages are not
1080 # flushed from the cache when %cr3 is reloaded. This can make context
1081 # switches less expensive. You should only disable this feature as a
1082 # temporary workaround if you are having problems with it enabled.
1083 #
1084 #options DISABLE_PG_G
1085
1086 # KSTACK_PAGES is the number of memory pages to assign to the kernel
1087 # stack of each thread.
1088
1089 options KSTACK_PAGES=3
1090
1091 #####################################################################
1092
1093 # More undocumented options for linting.
1094 # Note that documenting these are not considered an affront.
1095
1096 options FB_INSTALL_CDEV # install a CDEV entry in /dev
1097
1098 # PECOFF module (Win32 Execution Format)
1099 options PECOFF_SUPPORT
1100 options PECOFF_DEBUG
1101
1102 options I4B_SMP_WORKAROUND
1103 options I586_PMC_GUPROF=0x70000
1104 options KBDIO_DEBUG=2
1105 options KBD_MAXRETRY=4
1106 options KBD_MAXWAIT=6
1107 options KBD_RESETDELAY=201
1108
1109 options PSM_DEBUG=1
1110
1111 options TIMER_FREQ=((14318182+6)/12)
1112
1113 options VM_KMEM_SIZE
1114 options VM_KMEM_SIZE_MAX
1115 options VM_KMEM_SIZE_SCALE
1116
1117
1118 # The I/O device
1119 device io
1120
1121 # asr old ioctls support, needed by raidutils
1122
1123 options ASR_COMPAT
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