xref: /freebsd/sys/i386/conf/NOTES (revision d2387d42b8da231a5b95cbc313825fb2aadf26f6)
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# $FreeBSD$
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#
15machine		i386
16
17#
18# We want LINT to cover profiling as well.
19profile         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# Be sure to disable 'cpu I386_CPU' for SMP kernels.
33#
34# By default, mixed mode is used to route IRQ0 from the AT timer via
35# the 8259A master PIC through the ExtINT pin on the first I/O APIC.
36# This can be disabled via the NO_MIXED_MODE option.  In that case,
37# IRQ0 will be routed via an intpin on the first I/O APIC.  Not all
38# motherboards hook IRQ0 up to the first I/O APIC even though their
39# MP table or MADT may claim to do so.  That is why mixed mode is
40# enabled by default.
41#
42# HTT CPUs should only be used if they are enabled in the BIOS.  For
43# the ACPI case, ACPI only correctly tells us about any HTT CPUs if
44# they are enabled.  However, most HTT systems do not list HTT CPUs
45# in the MP Table if they are enabled, thus we guess at the HTT CPUs
46# for the MP Table case.  However, we shouldn't try to guess and use
47# these CPUs if HTTT is disabled.  Thus, HTT guessing is only enabled
48# for the MP Table if the user explicitly asks for it via the
49# MPTABLE_FORCE_HTT option.  Do NOT use this option if you have HTT
50# disabled in your BIOS.
51#
52
53# Mandatory:
54device		apic			# I/O apic
55
56# Optional:
57options		MPTABLE_FORCE_HTT	# Enable HTT CPUs with the MP Table
58options 	NO_MIXED_MODE		# Disable use of mixed mode
59
60
61#####################################################################
62# CPU OPTIONS
63
64#
65# You must specify at least one CPU (the one you intend to run on);
66# deleting the specification for CPUs you don't need to use may make
67# parts of the system run faster.
68# I386_CPU is mutually exclusive with the other CPU types.
69#
70#cpu		I386_CPU
71cpu		I486_CPU
72cpu		I586_CPU		# aka Pentium(tm)
73cpu		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 seems to emulate this instruction poorly, causing
104# the guest OS to run very slowly.  Enabling this with an SMP kernel
105# will cause the kernel to be unusable.
106#
107# CPU_DISABLE_SSE explicitly prevents I686_CPU from turning on SSE.
108#
109# CPU_ELAN enables support for AMDs ElanSC520 CPU.
110#    CPU_ELAN_PPS enables precision timestamp code.
111#    CPU_ELAN_XTAL sets the clock crystal frequency in Hz.
112#
113# CPU_ENABLE_LONGRUN enables support for Transmeta Crusoe LongRun
114# technology which allows to restrict power consumption of the CPU by
115# using group of hw.crusoe.* sysctls.
116#
117# CPU_ENABLE_SSE enables SSE/MMX2 instructions support.  This is default
118# on I686_CPU and above.
119#
120# CPU_ENABLE_TCC enables Thermal Control Circuitry (TCC) found in some
121# Pentium(tm) 4 and (possibly) later CPUs.  When enabled and detected,
122# TCC supports restricting power consumption using the hw.p4tcc.*
123# sysctls.  This operates independently of SpeedStep and is useful on
124# systems where other mechanisms such as apm(4) or acpi(4) don't work.
125#
126# CPU_FASTER_5X86_FPU enables faster FPU exception handler.
127#
128# CPU_GEODE is for the SC1100 Geode embedded processor.  This option
129# is necessary because the i8254 timecounter is toast.
130#
131# CPU_I486_ON_386 enables CPU cache on i486 based CPU upgrade products
132# for i386 machines.
133#
134# CPU_IORT defines I/O clock delay time (NOTE 1).  Default values of
135# I/O clock delay time on Cyrix 5x86 and 6x86 are 0 and 7,respectively
136# (no clock delay).
137#
138# CPU_L2_LATENCY specifies the L2 cache latency value.  This option is used
139# only when CPU_PPRO2CELERON is defined and Mendocino Celeron is detected.
140# The default value is 5.
141#
142# CPU_LOOP_EN prevents flushing the prefetch buffer if the destination
143# of a jump is already present in the prefetch buffer on Cyrix 5x86(NOTE
144# 1).
145#
146# CPU_PPRO2CELERON enables L2 cache of Mendocino Celeron CPUs.  This option
147# is useful when you use Socket 8 to Socket 370 converter, because most Pentium
148# Pro BIOSs do not enable L2 cache of Mendocino Celeron CPUs.
149#
150# CPU_RSTK_EN enables return stack on Cyrix 5x86 (NOTE 1).
151#
152# CPU_SOEKRIS enables support www.soekris.com hardware.
153#
154# CPU_SUSP_HLT enables suspend on HALT.  If this option is set, CPU
155# enters suspend mode following execution of HALT instruction.
156#
157# CPU_UPGRADE_HW_CACHE eliminates unneeded cache flush instruction(s).
158#
159# CPU_WT_ALLOC enables write allocation on Cyrix 6x86/6x86MX and AMD
160# K5/K6/K6-2 CPUs.
161#
162# CYRIX_CACHE_WORKS enables CPU cache on Cyrix 486 CPUs with cache
163# flush at hold state.
164#
165# CYRIX_CACHE_REALLY_WORKS enables (1) CPU cache on Cyrix 486 CPUs
166# without cache flush at hold state, and (2) write-back CPU cache on
167# Cyrix 6x86 whose revision < 2.7 (NOTE 2).
168#
169# NO_F00F_HACK disables the hack that prevents Pentiums (and ONLY
170# Pentiums) from locking up when a LOCK CMPXCHG8B instruction is
171# executed.  This option is only needed if I586_CPU is also defined,
172# and should be included for any non-Pentium CPU that defines it.
173#
174# NO_MEMORY_HOLE is an optimisation for systems with AMD K6 processors
175# which indicates that the 15-16MB range is *definitely* not being
176# occupied by an ISA memory hole.
177#
178# NOTE 1: The options, CPU_BTB_EN, CPU_LOOP_EN, CPU_IORT,
179# CPU_LOOP_EN and CPU_RSTK_EN should not be used because of CPU bugs.
180# These options may crash your system.
181#
182# NOTE 2: If CYRIX_CACHE_REALLY_WORKS is not set, CPU cache is enabled
183# in write-through mode when revision < 2.7.  If revision of Cyrix
184# 6x86 >= 2.7, CPU cache is always enabled in write-back mode.
185#
186# NOTE 3: This option may cause failures for software that requires
187# locked cycles in order to operate correctly.
188#
189options 	CPU_ATHLON_SSE_HACK
190options 	CPU_BLUELIGHTNING_3X
191options 	CPU_BLUELIGHTNING_FPU_OP_CACHE
192options 	CPU_BTB_EN
193options 	CPU_DIRECT_MAPPED_CACHE
194options 	CPU_DISABLE_5X86_LSSER
195options 	CPU_DISABLE_CMPXCHG
196#options 	CPU_DISABLE_SSE
197options 	CPU_ELAN
198options 	CPU_ELAN_PPS
199options 	CPU_ELAN_XTAL=32768000
200options 	CPU_ENABLE_LONGRUN
201options 	CPU_ENABLE_SSE
202options 	CPU_ENABLE_TCC
203options 	CPU_FASTER_5X86_FPU
204options 	CPU_GEODE
205options 	CPU_I486_ON_386
206options 	CPU_IORT
207options 	CPU_L2_LATENCY=5
208options 	CPU_LOOP_EN
209options 	CPU_PPRO2CELERON
210options 	CPU_RSTK_EN
211options 	CPU_SOEKRIS
212options 	CPU_SUSP_HLT
213options 	CPU_UPGRADE_HW_CACHE
214options 	CPU_WT_ALLOC
215options 	CYRIX_CACHE_WORKS
216options 	CYRIX_CACHE_REALLY_WORKS
217#options 	NO_F00F_HACK
218
219# Debug options
220options 	NPX_DEBUG	# enable npx debugging
221
222#
223# PERFMON causes the driver for Pentium/Pentium Pro performance counters
224# to be compiled.  See perfmon(4) for more information.
225#
226options 	PERFMON
227
228
229#####################################################################
230# NETWORKING OPTIONS
231
232#
233# DEVICE_POLLING adds support for mixed interrupt-polling handling
234# of network device drivers, which has significant benefits in terms
235# of robustness to overloads and responsivity, as well as permitting
236# accurate scheduling of the CPU time between kernel network processing
237# and other activities.  The drawback is a moderate (up to 1/HZ seconds)
238# potential increase in response times.
239# It is strongly recommended to use HZ=1000 or 2000 with DEVICE_POLLING
240# to achieve smoother behaviour.
241# Additionally, you can enable/disable polling at runtime with the
242# sysctl variable kern.polling.enable (defaults off), and select
243# the CPU fraction reserved to userland with the sysctl variable
244# kern.polling.user_frac (default 50, range 0..100).
245#
246# Not all device drivers support this mode of operation at the time of
247# this writing.  See polling(4) for more details.
248
249options 	DEVICE_POLLING
250
251
252#####################################################################
253# CLOCK OPTIONS
254
255# The following options are used for debugging clock behavior only, and
256# should not be used for production systems.
257
258# CLK_CALIBRATION_LOOP causes clock calibration to be run in a loop at
259# startup until the user presses a key.  (The i8254 clock is always
260# calibrated relative to the RTC (mc146818a) and this option causes the
261# calibration to be repeated.)
262options 	CLK_CALIBRATION_LOOP
263
264# CLK_USE_I8254_CALIBRATION causes the calibrated frequency of the i8254
265# clock to actually be used.
266options 	CLK_USE_I8254_CALIBRATION
267
268
269#####################################################################
270# MISCELLANEOUS DEVICES AND OPTIONS
271
272device		speaker		#Play IBM BASIC-style noises out your speaker
273hint.speaker.0.at="isa"
274hint.speaker.0.port="0x61"
275device		gzip		#Exec gzipped a.out's.  REQUIRES COMPAT_AOUT!
276device		apm_saver	# Requires APM
277
278
279#####################################################################
280# HARDWARE BUS CONFIGURATION
281
282#
283# ISA bus
284#
285device		isa
286
287#
288# Options for `isa':
289#
290# AUTO_EOI_1 enables the `automatic EOI' feature for the master 8259A
291# interrupt controller.  This saves about 0.7-1.25 usec for each interrupt.
292# This option breaks suspend/resume on some portables.
293#
294# AUTO_EOI_2 enables the `automatic EOI' feature for the slave 8259A
295# interrupt controller.  This saves about 0.7-1.25 usec for each interrupt.
296# Automatic EOI is documented not to work for for the slave with the
297# original i8259A, but it works for some clones and some integrated
298# versions.
299#
300# MAXMEM specifies the amount of RAM on the machine; if this is not
301# specified, FreeBSD will first read the amount of memory from the CMOS
302# RAM, so the amount of memory will initially be limited to 64MB or 16MB
303# depending on the BIOS.  If the BIOS reports 64MB, a memory probe will
304# then attempt to detect the installed amount of RAM.  If this probe
305# fails to detect >64MB RAM you will have to use the MAXMEM option.
306# The amount is in kilobytes, so for a machine with 128MB of RAM, it would
307# be 131072 (128 * 1024).
308#
309# BROKEN_KEYBOARD_RESET disables the use of the keyboard controller to
310# reset the CPU for reboot.  This is needed on some systems with broken
311# keyboard controllers.
312
313options 	AUTO_EOI_1
314#options 	AUTO_EOI_2
315
316options 	MAXMEM=(128*1024)
317#options 	BROKEN_KEYBOARD_RESET
318
319#
320# EISA bus
321#
322# The EISA bus device is `eisa'.  It provides auto-detection and
323# configuration support for all devices on the EISA bus.
324
325device		eisa
326
327# By default, only 10 EISA slots are probed, since the slot numbers
328# above clash with the configuration address space of the PCI subsystem,
329# and the EISA probe is not very smart about this.  This is sufficient
330# for most machines, but in particular the HP NetServer LC series comes
331# with an onboard AIC7770 dual-channel SCSI controller on EISA slot #11,
332# thus you need to bump this figure to 12 for them.
333options 	EISA_SLOTS=12
334
335#
336# MCA bus:
337#
338# The MCA bus device is `mca'.  It provides auto-detection and
339# configuration support for all devices on the MCA bus.
340# No hints are required for MCA.
341
342device		mca
343
344#
345# PCI bus & PCI options:
346#
347device		pci
348
349#
350# AGP GART support
351device		agp
352
353
354#####################################################################
355# HARDWARE DEVICE CONFIGURATION
356
357# To include support for VGA VESA video modes
358options 	VESA
359
360# Turn on extra debugging checks and output for VESA support.
361options 	VESA_DEBUG
362
363# The pcvt console driver (vt220 compatible).
364device		vt
365hint.vt.0.at="isa"
366options 	XSERVER			# support for running an X server on vt
367options 	FAT_CURSOR		# start with block cursor
368# This PCVT option is for keyboards such as those used on really old ThinkPads
369options 	PCVT_SCANSET=2
370# Other PCVT options are documented in pcvt(4).
371options 	PCVT_24LINESDEF
372options 	PCVT_CTRL_ALT_DEL
373options 	PCVT_META_ESC
374options 	PCVT_NSCREENS=9
375options 	PCVT_PRETTYSCRNS
376options 	PCVT_SCREENSAVER
377options 	PCVT_USEKBDSEC
378options 	PCVT_VT220KEYB
379options 	PCVT_GREENSAVER
380
381#
382# The Numeric Processing eXtension driver.  In addition to this, you
383# may configure a math emulator (see above).  If your machine has a
384# hardware FPU and the kernel configuration includes the npx device
385# *and* a math emulator compiled into the kernel, the hardware FPU
386# will be used, unless it is found to be broken or unless "flags" to
387# npx0 includes "0x08", which requests preference for the emulator.
388device		npx
389hint.npx.0.flags="0x0"
390hint.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#	0x08	use emulator even if hardware FPU is available.
398# The npx registers are normally used to optimize copying and zeroing when
399# all of the following conditions are satisfied:
400#	I586_CPU is an option
401#	the cpu is an i586 (perhaps not a Pentium)
402#	the probe for npx0 succeeds
403#	INT 16 exception handling works.
404# Then copying and zeroing using the npx registers is normally 30-100% faster.
405# The flags can be used to control cases where it doesn't work or is slower.
406# Setting them at boot time using userconfig works right (the optimizations
407# are not used until later in the bootstrap when npx0 is attached).
408# Flag 0x08 automatically disables the i586 optimized routines.
409#
410
411#
412# Optional devices:
413#
414
415# 3Dfx Voodoo Graphics, Voodoo II /dev/3dfx CDEV support.  This will create
416# the /dev/3dfx0 device to work with glide implementations.  This should get
417# linked to /dev/3dfx and /dev/voodoo.  Note that this is not the same as
418# the tdfx DRI module from XFree86 and is completely unrelated.
419#
420# To enable Linuxulator support, one must also include COMPAT_LINUX in the
421# config as well, or you will not have the dependencies.  The other option
422# is to load both as modules.
423
424device		tdfx			# Enable 3Dfx Voodoo support
425options 	TDFX_LINUX		# Enable Linuxulator support
426
427#
428# ACPI support using the Intel ACPI Component Architecture reference
429# implementation.
430#
431# ACPI_DEBUG enables the use of the debug.acpi.level and debug.acpi.layer
432# kernel environment variables to select initial debugging levels for the
433# Intel ACPICA code.  (Note that the Intel code must also have USE_DEBUGGER
434# defined when it is built).
435#
436# ACPI_MAX_THREADS sets the number of task threads started.
437#
438# ACPI_NO_SEMAPHORES makes the AcpiOs*Semaphore routines a no-op.
439#
440# ACPICA_PEDANTIC enables strict checking of AML.  Our default is to
441# relax these checks to allow code generated by the Microsoft compiler
442# to still execute.
443#
444# Note that building ACPI into the kernel is deprecated; the module is
445# normally loaded automatically by the loader.
446
447device		acpi
448options 	ACPI_DEBUG
449options 	ACPI_MAX_THREADS=1
450#!options 	ACPI_NO_SEMAPHORES
451#!options 	ACPICA_PEDANTIC
452
453# ACPI Toshiba Extras (LCD backlight/brightness, video output, etc.)
454device		acpi_toshiba
455
456# ACPI Video Extensions (LCD backlight/brightness, video output, etc.)
457device		acpi_video
458
459# DRM options:
460# mgadrm:    AGP Matrox G200, G400, G450, G550
461# r128drm:   ATI Rage 128
462# radeondrm: ATI Radeon up to 9000/9100
463# sisdrm:    SiS 300/305,540,630
464# tdfxdrm:   3dfx Voodoo 3/4/5 and Banshee
465# DRM_DEBUG: include debug printfs, very slow
466#
467# mga requires AGP in the kernel, and it is recommended
468# for AGP r128 and radeon cards.
469
470device		mgadrm
471device		"r128drm"
472device		radeondrm
473device		sisdrm
474device		tdfxdrm
475
476options 	DRM_DEBUG
477
478# M-systems DiskOnchip products see src/sys/contrib/dev/fla/README
479device		fla
480hint.fla.0.at="isa"
481
482#
483# mse: Logitech and ATI InPort bus mouse ports
484
485device		mse
486hint.mse.0.at="isa"
487hint.mse.0.port="0x23c"
488hint.mse.0.irq="5"
489
490#
491# Network interfaces:
492#
493
494# ar:   Arnet SYNC/570i hdlc sync 2/4 port V.35/X.21 serial driver
495#       (requires sppp)
496# arl:	Aironet Arlan 655 wireless adapters.
497# ath:  Atheros a/b/g WiFi adapters (requires ath_hal and wlan)
498# ctau: Cronyx/Tau sync dual port V.35/RS-232/RS-530/RS-449/X.21/G.703/E1
499#       serial adaptor (requires sppp (default), or NETGRAPH if
500#       NETGRAPH_CRONYX is configured)
501# cx:   Cronyx/Sigma multiport sync/async adapter (requires sppp (default),
502#       or NETGRAPH if NETGRAPH_CRONYX is configured)
503# ed:   Western Digital and SMC 80xx; Novell NE1000 and NE2000; 3Com 3C503
504#       HP PC Lan+, various PC Card devices (refer to etc/defaults/pccard.conf)
505#       (requires miibus)
506# el:   3Com 3C501 (slow!)
507# ie:   AT&T StarLAN 10 and EN100; 3Com 3C507; unknown NI5210;
508#       Intel EtherExpress
509# lnc:  Lance/PCnet cards (Isolan, Novell NE2100, NE32-VL, AMD Am7990 and
510#       Am79C960)
511# oltr: Olicom ISA token-ring adapters OC-3115, OC-3117, OC-3118 and OC-3133.
512#       Olicom PCI token-ring adapters OC-3136, OC-3137, OC-3139, OC-3140,
513#       OC-3141, OC-3540 and OC-3250.
514# sbni: Granch SBNI12-xx ISA and PCI adapters
515# sr:   RISCom/N2 hdlc sync 1/2 port V.35/X.21 serial driver (requires sppp)
516# wl:   Lucent Wavelan (ISA card only).
517
518# Order for ISA/EISA devices is important here
519
520device		ar
521hint.ar.0.at="isa"
522hint.ar.0.port="0x300"
523hint.ar.0.irq="10"
524hint.ar.0.maddr="0xd0000"
525device		arl
526hint.arl.0.at="isa"
527hint.arl.0.irq="9"
528hint.arl.0.maddr="0xd0000"
529device		ctau
530hint.ctau.0.at="isa"
531hint.ctau.0.port="0x240"
532hint.ctau.0.irq="15"
533hint.ctau.0.drq="7"
534device		cx
535hint.cx.0.at="isa"
536hint.cx.0.port="0x240"
537hint.cx.0.irq="15"
538hint.cx.0.drq="7"
539#options	NETGRAPH_CRONYX		# Enable NETGRAPH support for Cronyx adapter(s)
540device		ed
541#options 	ED_NO_MIIBUS		# Disable ed miibus support
542hint.ed.0.at="isa"
543hint.ed.0.port="0x280"
544hint.ed.0.irq="5"
545hint.ed.0.maddr="0xd8000"
546device		el	1
547hint.el.0.at="isa"
548hint.el.0.port="0x300"
549hint.el.0.irq="9"
550device		ie			# Hints only required for Starlan
551hint.ie.2.at="isa"
552hint.ie.2.port="0x300"
553hint.ie.2.irq="5"
554hint.ie.2.maddr="0xd0000"
555device		lnc
556hint.lnc.0.at="isa"
557hint.lnc.0.port="0x280"
558hint.lnc.0.irq="10"
559hint.lnc.0.drq="0"
560device		sbni
561hint.sbni.0.at="isa"
562hint.sbni.0.port="0x210"
563hint.sbni.0.irq="0xefdead"
564hint.sbni.0.flags="0"
565device		sr
566hint.sr.0.at="isa"
567hint.sr.0.port="0x300"
568hint.sr.0.irq="5"
569hint.sr.0.maddr="0xd0000"
570device		oltr
571hint.oltr.0.at="isa"
572device		wl
573hint.wl.0.at="isa"
574hint.wl.0.port="0x300"
575options 	WLCACHE		# enables the signal-strength cache
576options 	WLDEBUG		# enables verbose debugging output
577
578device		ath
579device		ath_hal		# Atheros HAL (includes binary component)
580#device		wlan		# 802.11 layer
581
582#
583# ATA raid adapters
584#
585device		pst
586
587#
588# 3ware 9000 series PATA/SATA RAID controller driver and options.
589# The driver is implemented as a SIM, and so, needs the CAM infrastructure.
590#
591options		TWA_DEBUG		# 0-10; 10 prints the most messages.
592options		TWA_FLASH_FIRMWARE	# firmware image bundled when defined.
593device		twa			# 3ware 9000 series PATA/SATA RAID
594
595#
596# SCSI host adapters:
597#
598# ncv: NCR 53C500 based SCSI host adapters.
599# nsp: Workbit Ninja SCSI-3 based PC Card SCSI host adapters.
600# stg: TMC 18C30, 18C50 based SCSI host adapters.
601
602device		ncv
603device		nsp
604device		stg
605hint.stg.0.at="isa"
606hint.stg.0.port="0x140"
607hint.stg.0.port="11"
608
609#
610# Adaptec FSA RAID controllers, including integrated DELL controllers,
611# the Dell PERC 2/QC and the HP NetRAID-4M
612device		aac
613device		aacp	# SCSI Passthrough interface (optional, CAM required)
614
615#
616# IBM (now Adaptec) ServeRAID controllers
617device		ips
618
619#
620# SafeNet crypto driver: can be moved to the MI NOTES as soon as
621# it's tested on a big-endian machine
622#
623device		safe		# SafeNet 1141
624options		SAFE_DEBUG	# enable debugging support: hw.safe.debug
625options		SAFE_RNDTEST	# enable rndtest support
626
627#####################################################################
628
629#
630# Miscellaneous hardware:
631#
632# apm: Laptop Advanced Power Management (experimental)
633# pmtimer: Timer device driver for power management events (APM or ACPI)
634# cy: Cyclades serial driver
635# digi: Digiboard driver
636# spic: Sony Programmable I/O controller (VAIO notebooks)
637
638# Notes on APM
639#  The flags takes the following meaning for apm0:
640#    0x0020  Statclock is broken.
641
642# Notes on the Specialix SI/XIO driver:
643#  The host card is memory, not IO mapped.
644#  The Rev 1 host cards use a 64K chunk, on a 32K boundary.
645#  The Rev 2 host cards use a 32K chunk, on a 32K boundary.
646#  The cards can use an IRQ of 11, 12 or 15.
647
648# Notes on the Sony Programmable I/O controller
649#  This is a temporary driver that should someday be replaced by something
650#  that hooks into the ACPI layer.  The device is hooked to the PIIX4's
651#  General Device 10 decoder, which means you have to fiddle with PCI
652#  registers to map it in, even though it is otherwise treated here as
653#  an ISA device.  At the moment, the driver polls, although the device
654#  is capable of generating interrupts.  It largely undocumented.
655#  The port location in the hint is where you WANT the device to be
656#  mapped.  0x10a0 seems to be traditional.  At the moment the jogdial
657#  is the only thing truly supported, but apparently a fair percentage
658#  of the Vaio extra features are controlled by this device.
659
660device		apm
661hint.apm.0.flags="0x20"
662device		pmtimer			# Adjust system timer at wakeup time
663#The Cy driver is commented out until imp can move it to dev/cy
664#device		cy	1
665#options 	CY_PCI_FASTINTR		# Use with cy_pci unless irq is shared
666hint.cy.0.at="isa"
667hint.cy.0.irq="10"
668hint.cy.0.maddr="0xd4000"
669hint.cy.0.msize="0x2000"
670device		digi
671hint.digi.0.at="isa"
672hint.digi.0.port="0x104"
673hint.digi.0.maddr="0xd0000"
674# BIOS & FEP/OS components of device digi.
675device		digi_CX
676device		digi_CX_PCI
677device		digi_EPCX
678device		digi_EPCX_PCI
679device		digi_Xe
680device		digi_Xem
681device		digi_Xr
682device		spic
683hint.spic.0.at="isa"
684hint.spic.0.port="0x10a0"
685# HOT1 Xilinx 6200 card (http://www.vcc.com/)
686device		xrpu
687
688#
689# Laptop/Notebook options:
690#
691# See also:
692#  apm under `Miscellaneous hardware'
693# above.
694
695# For older notebooks that signal a powerfail condition (external
696# power supply dropped, or battery state low) by issuing an NMI:
697
698options 	POWERFAIL_NMI	# make it beep instead of panicing
699
700#
701# I2C Bus
702#
703# Philips i2c bus support is provided by the `iicbus' device.
704#
705# Supported interfaces:
706# pcf	Philips PCF8584 ISA-bus controller
707#
708device		pcf
709hint.pcf.0.at="isa"
710hint.pcf.0.port="0x320"
711hint.pcf.0.irq="5"
712
713#---------------------------------------------------------------------------
714# ISDN4BSD
715#
716# See /usr/share/examples/isdn/ROADMAP for an introduction to isdn4bsd.
717#
718# i4b passive ISDN cards support contains the following hardware drivers:
719#
720#	isic  - Siemens/Infineon ISDN ISAC/HSCX/IPAC chipset driver
721#	iwic  - Winbond W6692 PCI bus ISDN S/T interface controller
722#	ifpi  - AVM Fritz!Card PCI driver
723#	ifpi2  - AVM Fritz!Card PCI version 2 driver
724#	ihfc  - Cologne Chip HFC ISA/ISA-PnP chipset driver
725#	ifpnp - AVM Fritz!Card PnP driver
726#	itjc  - Siemens ISAC / TJNet Tiger300/320 chipset
727#
728# i4b active ISDN cards support contains the following hardware drivers:
729#
730#	iavc  - AVM B1 PCI, AVM B1 ISA, AVM T1
731#
732# Note that the ``options'' (if given) and ``device'' lines must BOTH
733# be uncommented to enable support for a given card !
734#
735# In addition to a hardware driver (and probably an option) the mandatory
736# ISDN protocol stack devices and the mandatory support device must be
737# enabled as well as one or more devices from the optional devices section.
738#
739#---------------------------------------------------------------------------
740#	isic driver (Siemens/Infineon chipsets)
741#
742device	isic
743#
744# ISA bus non-PnP Cards:
745# ----------------------
746#
747# Teles S0/8 or Niccy 1008
748options 	TEL_S0_8
749hint.isic.0.at="isa"
750hint.isic.0.maddr="0xd0000"
751hint.isic.0.irq="5"
752hint.isic.0.flags="1"
753#
754# Teles S0/16 or Creatix ISDN-S0 or Niccy 1016
755options 	TEL_S0_16
756hint.isic.0.at="isa"
757hint.isic.0.port="0xd80"
758hint.isic.0.maddr="0xd0000"
759hint.isic.0.irq="5"
760hint.isic.0.flags="2"
761#
762# Teles S0/16.3
763options 	TEL_S0_16_3
764hint.isic.0.at="isa"
765hint.isic.0.port="0xd80"
766hint.isic.0.irq="5"
767hint.isic.0.flags="3"
768#
769# AVM A1 or AVM Fritz!Card
770options 	AVM_A1
771hint.isic.0.at="isa"
772hint.isic.0.port="0x340"
773hint.isic.0.irq="5"
774hint.isic.0.flags="4"
775#
776# USRobotics Sportster ISDN TA intern
777options 	USR_STI
778hint.isic.0.at="isa"
779hint.isic.0.port="0x268"
780hint.isic.0.irq="5"
781hint.isic.0.flags="7"
782#
783# ITK ix1 Micro ( < V.3, non-PnP version )
784options 	ITKIX1
785hint.isic.0.at="isa"
786hint.isic.0.port="0x398"
787hint.isic.0.irq="10"
788hint.isic.0.flags="18"
789#
790# ELSA PCC-16
791options 	ELSA_PCC16
792hint.isic.0.at="isa"
793hint.isic.0.port="0x360"
794hint.isic.0.irq="10"
795hint.isic.0.flags="20"
796#
797# ISA bus PnP Cards:
798# ------------------
799#
800# Teles S0/16.3 PnP
801options 	TEL_S0_16_3_P
802#
803# Creatix ISDN-S0 P&P
804options 	CRTX_S0_P
805#
806# Dr. Neuhaus Niccy Go@
807options 	DRN_NGO
808#
809# Sedlbauer Win Speed
810options 	SEDLBAUER
811#
812# Dynalink IS64PH
813options 	DYNALINK
814#
815# ELSA QuickStep 1000pro ISA
816options 	ELSA_QS1ISA
817#
818# Siemens I-Surf 2.0
819options 	SIEMENS_ISURF2
820#
821# Asuscom ISDNlink 128K ISA
822options 	ASUSCOM_IPAC
823#
824# Eicon Diehl DIVA 2.0 and 2.02
825options 	EICON_DIVA
826#
827# Compaq Microcom 610 ISDN card (Compaq series PSB2222I)
828options 	COMPAQ_M610
829#
830# PCI bus Cards:
831# --------------
832#
833# ELSA MicroLink ISDN/PCI (same as ELSA QuickStep 1000pro PCI)
834options 	ELSA_QS1PCI
835#
836#---------------------------------------------------------------------------
837#	ifpnp driver for AVM Fritz!Card PnP
838#
839# AVM Fritz!Card PnP
840device		ifpnp
841#
842#---------------------------------------------------------------------------
843#	ihfc driver for Cologne Chip ISA chipsets (experimental!)
844#
845# Teles 16.3c ISA PnP
846# AcerISDN P10 ISA PnP
847# TELEINT ISDN SPEED No.1
848device		ihfc
849#
850#---------------------------------------------------------------------------
851#	ifpi driver for AVM Fritz!Card PCI
852#
853# AVM Fritz!Card PCI
854device		ifpi
855#
856#---------------------------------------------------------------------------
857#	ifpi2 driver for AVM Fritz!Card PCI version 2
858#
859# AVM Fritz!Card PCI version 2
860device		"ifpi2"
861#
862#---------------------------------------------------------------------------
863#	iwic driver for Winbond W6692 chipset
864#
865# ASUSCOM P-IN100-ST-D (and other Winbond W6692 based cards)
866device		iwic
867#
868#---------------------------------------------------------------------------
869#	itjc driver for Siemens ISAC / TJNet Tiger300/320 chipset
870#
871# Traverse Technologies NETjet-S
872# Teles PCI-TJ
873device		itjc
874#
875#---------------------------------------------------------------------------
876#	iavc driver (AVM active cards, needs i4bcapi driver!)
877#
878device		iavc
879#
880# AVM B1 ISA bus (PnP mode not supported!)
881# ----------------------------------------
882hint.iavc.0.at="isa"
883hint.iavc.0.port="0x150"
884hint.iavc.0.irq="5"
885#
886#---------------------------------------------------------------------------
887#	ISDN Protocol Stack - mandatory for all hardware drivers
888#
889# Q.921 / layer 2 - i4b passive cards D channel handling
890device		"i4bq921"
891#
892# Q.931 / layer 3 - i4b passive cards D channel handling
893device		"i4bq931"
894#
895# layer 4 - i4b common passive and active card handling
896device		"i4b"
897#
898#---------------------------------------------------------------------------
899#	ISDN devices - mandatory for all hardware drivers
900#
901# userland driver to do ISDN tracing (for passive cards only)
902device		"i4btrc"	4
903#
904# userland driver to control the whole thing
905device		"i4bctl"
906#
907#---------------------------------------------------------------------------
908#	ISDN devices - optional
909#
910# userland driver for access to raw B channel
911device		"i4brbch"	4
912#
913# userland driver for telephony
914device		"i4btel"	2
915#
916# network driver for IP over raw HDLC ISDN
917device		"i4bipr"	4
918# enable VJ header compression detection for ipr i/f
919options 	IPR_VJ
920# enable logging of the first n IP packets to isdnd (n=32 here)
921options 	IPR_LOG=32
922#
923# network driver for sync PPP over ISDN; requires an equivalent
924# number of sppp device to be configured
925device		"i4bisppp"	4
926#
927# B-channel interface to the netgraph subsystem
928device		"i4bing"	2
929#
930# CAPI driver needed for active ISDN cards (see iavc driver above)
931device		"i4bcapi"
932#
933#---------------------------------------------------------------------------
934
935#
936# Set the number of PV entries per process.  Increasing this can
937# stop panics related to heavy use of shared memory.  However, that can
938# (combined with large amounts of physical memory) cause panics at
939# boot time due the kernel running out of VM space.
940#
941# If you're tweaking this, you might also want to increase the sysctls
942# "vm.v_free_min", "vm.v_free_reserved", and "vm.v_free_target".
943#
944# The value below is the one more than the default.
945#
946options 	PMAP_SHPGPERPROC=201
947
948#
949# Change the size of the kernel virtual address space.  Due to
950# constraints in loader(8) on i386, this must be a multiple of 4.
951# 256 = 1 GB of kernel address space.  Increasing this also causes
952# a reduction of the address space in user processes.  512 splits
953# the 4GB cpu address space in half (2GB user, 2GB kernel).
954#
955options 	KVA_PAGES=260
956
957
958#####################################################################
959# ABI Emulation
960
961# Enable iBCS2 runtime support for SCO and ISC binaries
962options 	IBCS2
963
964# Emulate spx device for client side of SVR3 local X interface
965options 	SPX_HACK
966
967# Enable Linux ABI emulation
968options 	COMPAT_LINUX
969
970# Enable i386 a.out binary support
971options 	COMPAT_AOUT
972
973# Enable the linux-like proc filesystem support (requires COMPAT_LINUX
974# and PSEUDOFS)
975options 	LINPROCFS
976
977#
978# SysVR4 ABI emulation
979#
980# The svr4 ABI emulator can be statically compiled into the kernel or loaded as
981# a KLD module.
982# The STREAMS network emulation code can also be compiled statically or as a
983# module.  If loaded as a module, it must be loaded before the svr4 module
984# (the /usr/sbin/svr4 script does this for you).  If compiling statically,
985# the `streams' device must be configured into any kernel which also
986# specifies COMPAT_SVR4.  It is possible to have a statically-configured
987# STREAMS device and a dynamically loadable svr4 emulator;  the /usr/sbin/svr4
988# script understands that it doesn't need to load the `streams' module under
989# those circumstances.
990# Caveat:  At this time, `options KTRACE' is required for the svr4 emulator
991# (whether static or dynamic).
992#
993options 	COMPAT_SVR4	# build emulator statically
994options 	DEBUG_SVR4	# enable verbose debugging
995device		streams		# STREAMS network driver (required for svr4).
996
997
998#####################################################################
999# VM OPTIONS
1000
1001# Disable the 4 MByte page PSE CPU feature.  The PSE feature allows the
1002# kernel to use a 4 MByte pages to map the kernel instead of 4k pages.
1003# This saves on the amount of memory needed for page tables needed to
1004# map the kernel.  You should only disable this feature as a temporary
1005# workaround if you are having problems with it enabled.
1006#
1007#options 	DISABLE_PSE
1008
1009# Disable the global pages PGE CPU feature.  The PGE feature allows pages
1010# to be marked with the PG_G bit.  TLB entries for these pages are not
1011# flushed from the cache when %cr3 is reloaded.  This can make context
1012# switches less expensive.  You should only disable this feature as a
1013# temporary workaround if you are having problems with it enabled.
1014#
1015#options 	DISABLE_PG_G
1016
1017# KSTACK_PAGES is the number of memory pages to assign to the kernel
1018# stack of each thread.
1019
1020options 	KSTACK_PAGES=3
1021
1022#####################################################################
1023
1024# More undocumented options for linting.
1025# Note that documenting these are not considered an affront.
1026
1027options 	FB_INSTALL_CDEV		# install a CDEV entry in /dev
1028
1029# PECOFF module (Win32 Execution Format)
1030options 	PECOFF_SUPPORT
1031options 	PECOFF_DEBUG
1032
1033options 	ENABLE_ALART		# Control alarm on Intel intpm driver
1034options 	I4B_SMP_WORKAROUND
1035options 	I586_PMC_GUPROF=0x70000
1036options 	KBDIO_DEBUG=2
1037options 	KBD_MAXRETRY=4
1038options 	KBD_MAXWAIT=6
1039options 	KBD_RESETDELAY=201
1040
1041options 	PSM_DEBUG=1
1042
1043options 	TIMER_FREQ=((14318182+6)/12)
1044
1045options 	VM_KMEM_SIZE
1046options 	VM_KMEM_SIZE_MAX
1047options 	VM_KMEM_SIZE_SCALE
1048