xref: /freebsd/sys/i386/conf/NOTES (revision 282a3889ebf826db9839be296ff1dd903f6d6d6e)
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# We want LINT to cover profiling as well.
12profile         2
13
14
15#####################################################################
16# SMP OPTIONS:
17#
18# The apic device enables the use of the I/O APIC for interrupt delivery.
19# The apic device can be used in both UP and SMP kernels, but is required
20# for SMP kernels.  Thus, the apic device is not strictly an SMP option,
21# but it is a prerequisite for SMP.
22#
23# Notes:
24#
25# HTT CPUs should only be used if they are enabled in the BIOS.  For
26# the ACPI case, ACPI only correctly tells us about any HTT CPUs if
27# they are enabled.  However, most HTT systems do not list HTT CPUs
28# in the MP Table if they are enabled, thus we guess at the HTT CPUs
29# for the MP Table case.  However, we shouldn't try to guess and use
30# these CPUs if HTT is disabled.  Thus, HTT guessing is only enabled
31# for the MP Table if the user explicitly asks for it via the
32# MPTABLE_FORCE_HTT option.  Do NOT use this option if you have HTT
33# disabled in your BIOS.
34#
35# IPI_PREEMPTION instructs the kernel to preempt threads running on other
36# CPUS if needed.  Relies on the PREEMPTION option
37
38# Mandatory:
39device		apic			# I/O apic
40
41# Optional:
42options 	MPTABLE_FORCE_HTT	# Enable HTT CPUs with the MP Table
43options 	IPI_PREEMPTION
44
45#
46# Watchdog routines.
47#
48options 	MP_WATCHDOG
49
50# Debugging options.
51#
52options		STOP_NMI		# Stop CPUS using NMI instead of IPI
53options 	COUNT_XINVLTLB_HITS	# Counters for TLB events
54options 	COUNT_IPIS		# Per-CPU IPI interrupt counters
55
56
57
58#####################################################################
59# CPU OPTIONS
60
61#
62# You must specify at least one CPU (the one you intend to run on);
63# deleting the specification for CPUs you don't need to use may make
64# parts of the system run faster.
65#
66cpu		I486_CPU
67cpu		I586_CPU		# aka Pentium(tm)
68cpu		I686_CPU		# aka Pentium Pro(tm)
69
70#
71# Options for CPU features.
72#
73# CPU_ATHLON_SSE_HACK tries to enable SSE instructions when the BIOS has
74# forgotten to enable them.
75#
76# CPU_BLUELIGHTNING_3X enables triple-clock mode on IBM Blue Lightning
77# CPU if CPU supports it.  The default is double-clock mode on
78# BlueLightning CPU box.
79#
80# CPU_BLUELIGHTNING_FPU_OP_CACHE enables FPU operand cache on IBM
81# BlueLightning CPU.  It works only with Cyrix FPU, and this option
82# should not be used with Intel FPU.
83#
84# CPU_BTB_EN enables branch target buffer on Cyrix 5x86 (NOTE 1).
85#
86# CPU_CYRIX_NO_LOCK enables weak locking for the entire address space
87# of Cyrix 6x86 and 6x86MX CPUs by setting the NO_LOCK bit of CCR1.
88# Otherwise, the NO_LOCK bit of CCR1 is cleared.  (NOTE 3)
89#
90# CPU_DIRECT_MAPPED_CACHE sets L1 cache of Cyrix 486DLC CPU in direct
91# mapped mode.  Default is 2-way set associative mode.
92#
93# CPU_DISABLE_5X86_LSSER disables load store serialize (i.e., enables
94# reorder).  This option should not be used if you use memory mapped
95# I/O device(s).
96#
97# CPU_DISABLE_CMPXCHG disables the CMPXCHG instruction on > i386 IA32
98# machines.  VmWare 3.x seems to emulate this instruction poorly, causing
99# the guest OS to run very slowly.  This problem appears to be fixed in
100# VmWare 4.x, at least in version 4.5.2, so that enabling this option with
101# VmWare 4.x will result in locking operations to be 20-30 times slower.
102# Enabling this with an SMP kernel will cause the kernel to be unusable.
103#
104# CPU_DISABLE_SSE explicitly prevents I686_CPU from turning on SSE.
105#
106# CPU_ELAN enables support for AMDs ElanSC520 CPU.
107#    CPU_ELAN_PPS enables precision timestamp code.
108#    CPU_ELAN_XTAL sets the clock crystal frequency in Hz.
109#
110# CPU_ENABLE_LONGRUN enables support for Transmeta Crusoe LongRun
111# technology which allows to restrict power consumption of the CPU by
112# using group of hw.crusoe.* sysctls.
113#
114# CPU_FASTER_5X86_FPU enables faster FPU exception handler.
115#
116# CPU_GEODE is for the SC1100 Geode embedded processor.  This option
117# is necessary because the i8254 timecounter is toast.
118#
119# CPU_I486_ON_386 enables CPU cache on i486 based CPU upgrade products
120# for i386 machines.
121#
122# CPU_IORT defines I/O clock delay time (NOTE 1).  Default values of
123# I/O clock delay time on Cyrix 5x86 and 6x86 are 0 and 7,respectively
124# (no clock delay).
125#
126# CPU_L2_LATENCY specifies the L2 cache latency value.  This option is used
127# only when CPU_PPRO2CELERON is defined and Mendocino Celeron is detected.
128# The default value is 5.
129#
130# CPU_LOOP_EN prevents flushing the prefetch buffer if the destination
131# of a jump is already present in the prefetch buffer on Cyrix 5x86(NOTE
132# 1).
133#
134# CPU_PPRO2CELERON enables L2 cache of Mendocino Celeron CPUs.  This option
135# is useful when you use Socket 8 to Socket 370 converter, because most Pentium
136# Pro BIOSs do not enable L2 cache of Mendocino Celeron CPUs.
137#
138# CPU_RSTK_EN enables return stack on Cyrix 5x86 (NOTE 1).
139#
140# CPU_SOEKRIS enables support www.soekris.com hardware.
141#
142# CPU_SUSP_HLT enables suspend on HALT.  If this option is set, CPU
143# enters suspend mode following execution of HALT instruction.
144#
145# CPU_UPGRADE_HW_CACHE eliminates unneeded cache flush instruction(s).
146#
147# CPU_WT_ALLOC enables write allocation on Cyrix 6x86/6x86MX and AMD
148# K5/K6/K6-2 CPUs.
149#
150# CYRIX_CACHE_WORKS enables CPU cache on Cyrix 486 CPUs with cache
151# flush at hold state.
152#
153# CYRIX_CACHE_REALLY_WORKS enables (1) CPU cache on Cyrix 486 CPUs
154# without cache flush at hold state, and (2) write-back CPU cache on
155# Cyrix 6x86 whose revision < 2.7 (NOTE 2).
156#
157# NO_F00F_HACK disables the hack that prevents Pentiums (and ONLY
158# Pentiums) from locking up when a LOCK CMPXCHG8B instruction is
159# executed.  This option is only needed if I586_CPU is also defined,
160# and should be included for any non-Pentium CPU that defines it.
161#
162# NO_MEMORY_HOLE is an optimisation for systems with AMD K6 processors
163# which indicates that the 15-16MB range is *definitely* not being
164# occupied by an ISA memory hole.
165#
166# NOTE 1: The options, CPU_BTB_EN, CPU_LOOP_EN, CPU_IORT,
167# CPU_LOOP_EN and CPU_RSTK_EN should not be used because of CPU bugs.
168# These options may crash your system.
169#
170# NOTE 2: If CYRIX_CACHE_REALLY_WORKS is not set, CPU cache is enabled
171# in write-through mode when revision < 2.7.  If revision of Cyrix
172# 6x86 >= 2.7, CPU cache is always enabled in write-back mode.
173#
174# NOTE 3: This option may cause failures for software that requires
175# locked cycles in order to operate correctly.
176#
177options 	CPU_ATHLON_SSE_HACK
178options 	CPU_BLUELIGHTNING_3X
179options 	CPU_BLUELIGHTNING_FPU_OP_CACHE
180options 	CPU_BTB_EN
181options 	CPU_DIRECT_MAPPED_CACHE
182options 	CPU_DISABLE_5X86_LSSER
183options 	CPU_DISABLE_CMPXCHG
184#options 	CPU_DISABLE_SSE
185options 	CPU_ELAN
186options 	CPU_ELAN_PPS
187options 	CPU_ELAN_XTAL=32768000
188options 	CPU_ENABLE_LONGRUN
189options 	CPU_FASTER_5X86_FPU
190options 	CPU_GEODE
191options 	CPU_I486_ON_386
192options 	CPU_IORT
193options 	CPU_L2_LATENCY=5
194options 	CPU_LOOP_EN
195options 	CPU_PPRO2CELERON
196options 	CPU_RSTK_EN
197options 	CPU_SOEKRIS
198options 	CPU_SUSP_HLT
199options 	CPU_UPGRADE_HW_CACHE
200options 	CPU_WT_ALLOC
201options 	CYRIX_CACHE_WORKS
202options 	CYRIX_CACHE_REALLY_WORKS
203#options 	NO_F00F_HACK
204
205# Debug options
206options 	NPX_DEBUG	# enable npx debugging
207
208#
209# PERFMON causes the driver for Pentium/Pentium Pro performance counters
210# to be compiled.  See perfmon(4) for more information.
211#
212options 	PERFMON
213
214#
215# XBOX causes the kernel to be bootable on the Microsoft XBox console system.
216# The resulting kernel will auto-detect whether it is being booted on a XBox,
217# so kernels compiled with this option will also work on an ordinary PC.
218# This option require I686_CPU.
219#
220# xboxfb includes support for the XBox frame buffer device. It is fully USB-
221# keyboard aware, and will only be used if an xbox is detected. This option
222# (obviously) requires XBOX support in your kernel.
223#
224# NOTE: xboxfb currently conflicts with syscons(4); if you have an XBOX and
225# include both in your kernel; you will not get any video output. Ordinary
226# PC's do not suffer from this.
227#
228options		XBOX
229device		xboxfb
230
231
232#####################################################################
233# NETWORKING OPTIONS
234
235#
236# DEVICE_POLLING adds support for mixed interrupt-polling handling
237# of network device drivers, which has significant benefits in terms
238# of robustness to overloads and responsivity, as well as permitting
239# accurate scheduling of the CPU time between kernel network processing
240# and other activities.  The drawback is a moderate (up to 1/HZ seconds)
241# potential increase in response times.
242# It is strongly recommended to use HZ=1000 or 2000 with DEVICE_POLLING
243# to achieve smoother behaviour.
244# Additionally, you can enable/disable polling at runtime with help of
245# the ifconfig(8) utility, and select the CPU fraction reserved to
246# userland with the sysctl variable kern.polling.user_frac
247# (default 50, range 0..100).
248#
249# Not all device drivers support this mode of operation at the time of
250# this writing.  See polling(4) for more details.
251
252options 	DEVICE_POLLING
253
254
255#####################################################################
256# CLOCK OPTIONS
257
258# The following options are used for debugging clock behavior only, and
259# should not be used for production systems.
260
261# CLK_CALIBRATION_LOOP causes clock calibration to be run in a loop at
262# startup until the user presses a key.  (The i8254 clock is always
263# calibrated relative to the RTC (mc146818a) and this option causes the
264# calibration to be repeated.)
265options 	CLK_CALIBRATION_LOOP
266
267# CLK_USE_I8254_CALIBRATION causes the calibrated frequency of the i8254
268# clock to actually be used.
269options 	CLK_USE_I8254_CALIBRATION
270
271
272#####################################################################
273# MISCELLANEOUS DEVICES AND OPTIONS
274
275#
276# sio: serial ports (see sio(4)), including support for various
277#      PC Card devices, such as Modem and NICs
278#
279device		sio
280hint.sio.0.at="isa"
281hint.sio.0.port="0x3F8"
282hint.sio.0.flags="0x10"
283hint.sio.0.irq="4"
284
285# `flags' specific to sio(4).
286#	0x10	enable console support for this unit.  Other console flags
287#		(if applicable) are ignored unless this is set.  Enabling
288#		console support does not make the unit the preferred console.
289#		Boot with -h or set boot_serial=YES in the loader.  For sio(4)
290#		specifically, the 0x20 flag can also be set (see above).
291#		Currently, at most one unit can have console support; the
292#		first one (in config file order) with this flag set is
293#		preferred.  Setting this flag for sio0 gives the old behaviour.
294#	0x20	force this unit to be the console (unless there is another
295#		higher priority console).  This replaces the COMCONSOLE option.
296#	0x40	reserve this unit for low level console operations.  Do not
297#		access the device in any normal way.
298#	0x80	use this port for serial line gdb support in ddb.  Also known
299#		as debug port.
300# PnP `flags'
301#	0x1	disable probing of this device.  Used to prevent your modem
302#		from being attached as a PnP modem.
303# Other flags for sio that aren't documented in the man page.
304#	0x20000	enable hardware RTS/CTS and larger FIFOs.  Only works for
305#		ST16650A-compatible UARTs.
306
307# Options for sio:
308options 	COM_ESP			# Code for Hayes ESP.
309options 	COM_MULTIPORT		# Code for some cards with shared IRQs.
310options 	CONSPEED=115200		# Speed for serial console
311					# (default 9600).
312
313device		speaker		#Play IBM BASIC-style noises out your speaker
314hint.speaker.0.at="isa"
315hint.speaker.0.port="0x61"
316device		gzip		#Exec gzipped a.out's.  REQUIRES COMPAT_AOUT!
317device		apm_saver	# Requires APM
318
319
320#####################################################################
321# HARDWARE BUS CONFIGURATION
322
323#
324# ISA bus
325#
326device		isa		# Required by npx(4)
327
328#
329# Options for `isa':
330#
331# AUTO_EOI_1 enables the `automatic EOI' feature for the master 8259A
332# interrupt controller.  This saves about 0.7-1.25 usec for each interrupt.
333# This option breaks suspend/resume on some portables.
334#
335# AUTO_EOI_2 enables the `automatic EOI' feature for the slave 8259A
336# interrupt controller.  This saves about 0.7-1.25 usec for each interrupt.
337# Automatic EOI is documented not to work for for the slave with the
338# original i8259A, but it works for some clones and some integrated
339# versions.
340#
341# MAXMEM specifies the amount of RAM on the machine; if this is not
342# specified, FreeBSD will first read the amount of memory from the CMOS
343# RAM, so the amount of memory will initially be limited to 64MB or 16MB
344# depending on the BIOS.  If the BIOS reports 64MB, a memory probe will
345# then attempt to detect the installed amount of RAM.  If this probe
346# fails to detect >64MB RAM you will have to use the MAXMEM option.
347# The amount is in kilobytes, so for a machine with 128MB of RAM, it would
348# be 131072 (128 * 1024).
349#
350# BROKEN_KEYBOARD_RESET disables the use of the keyboard controller to
351# reset the CPU for reboot.  This is needed on some systems with broken
352# keyboard controllers.
353
354options 	AUTO_EOI_1
355#options 	AUTO_EOI_2
356
357options 	MAXMEM=(128*1024)
358#options 	BROKEN_KEYBOARD_RESET
359
360#
361# EISA bus
362#
363# The EISA bus device is `eisa'.  It provides auto-detection and
364# configuration support for all devices on the EISA bus.
365
366device		eisa
367
368# By default, only 10 EISA slots are probed, since the slot numbers
369# above clash with the configuration address space of the PCI subsystem,
370# and the EISA probe is not very smart about this.  This is sufficient
371# for most machines, but in particular the HP NetServer LC series comes
372# with an onboard AIC7770 dual-channel SCSI controller on EISA slot #11,
373# thus you need to bump this figure to 12 for them.
374options 	EISA_SLOTS=12
375
376#
377# MCA bus:
378#
379# The MCA bus device is `mca'.  It provides auto-detection and
380# configuration support for all devices on the MCA bus.
381# No hints are required for MCA.
382
383device		mca
384
385#
386# PCI bus & PCI options:
387#
388device		pci
389
390#
391# AGP GART support
392device		agp
393
394
395#####################################################################
396# HARDWARE DEVICE CONFIGURATION
397
398# To include support for VGA VESA video modes
399options 	VESA
400
401# Turn on extra debugging checks and output for VESA support.
402options 	VESA_DEBUG
403
404#
405# The Numeric Processing eXtension driver.  This is non-optional.
406device		npx
407hint.npx.0.flags="0x0"
408hint.npx.0.irq="13"
409
410#
411# `flags' for npx0:
412#	0x01	don't use the npx registers to optimize bcopy.
413#	0x02	don't use the npx registers to optimize bzero.
414#	0x04	don't use the npx registers to optimize copyin or copyout.
415# The npx registers are normally used to optimize copying and zeroing when
416# all of the following conditions are satisfied:
417#	I586_CPU is an option
418#	the cpu is an i586 (perhaps not a Pentium)
419#	the probe for npx0 succeeds
420#	INT 16 exception handling works.
421# Then copying and zeroing using the npx registers is normally 30-100% faster.
422# The flags can be used to control cases where it doesn't work or is slower.
423# Setting them at boot time using hints works right (the optimizations
424# are not used until later in the bootstrap when npx0 is attached).
425# Flag 0x08 automatically disables the i586 optimized routines.
426#
427
428#
429# Optional devices:
430#
431
432# PS/2 mouse
433device		psm
434hint.psm.0.at="atkbdc"
435hint.psm.0.irq="12"
436
437# Options for psm:
438options 	PSM_HOOKRESUME		#hook the system resume event, useful
439					#for some laptops
440options 	PSM_RESETAFTERSUSPEND	#reset the device at the resume event
441
442# The keyboard controller; it controls the keyboard and the PS/2 mouse.
443device		atkbdc
444hint.atkbdc.0.at="isa"
445hint.atkbdc.0.port="0x060"
446
447# The AT keyboard
448device		atkbd
449hint.atkbd.0.at="atkbdc"
450hint.atkbd.0.irq="1"
451
452# Options for atkbd:
453options 	ATKBD_DFLT_KEYMAP	# specify the built-in keymap
454makeoptions	ATKBD_DFLT_KEYMAP=jp.106
455
456# `flags' for atkbd:
457#       0x01    Force detection of keyboard, else we always assume a keyboard
458#       0x02    Don't reset keyboard, useful for some newer ThinkPads
459#	0x03	Force detection and avoid reset, might help with certain
460#		dockingstations
461#       0x04    Old-style (XT) keyboard support, useful for older ThinkPads
462
463# Video card driver for VGA adapters.
464device		vga
465hint.vga.0.at="isa"
466
467# Options for vga:
468# Try the following option if the mouse pointer is not drawn correctly
469# or font does not seem to be loaded properly.  May cause flicker on
470# some systems.
471options 	VGA_ALT_SEQACCESS
472
473# If you can dispense with some vga driver features, you may want to
474# use the following options to save some memory.
475#options 	VGA_NO_FONT_LOADING	# don't save/load font
476#options 	VGA_NO_MODE_CHANGE	# don't change video modes
477
478# Older video cards may require this option for proper operation.
479options 	VGA_SLOW_IOACCESS	# do byte-wide i/o's to TS and GDC regs
480
481# The following option probably won't work with the LCD displays.
482options 	VGA_WIDTH90		# support 90 column modes
483
484# Debugging.
485options 	VGA_DEBUG
486
487# 3Dfx Voodoo Graphics, Voodoo II /dev/3dfx CDEV support.  This will create
488# the /dev/3dfx0 device to work with glide implementations.  This should get
489# linked to /dev/3dfx and /dev/voodoo.  Note that this is not the same as
490# the tdfx DRI module from XFree86 and is completely unrelated.
491#
492# To enable Linuxulator support, one must also include COMPAT_LINUX in the
493# config as well.  The other option is to load both as modules.
494
495device		tdfx			# Enable 3Dfx Voodoo support
496device		tdfx_linux		# Enable Linuxulator support
497
498#
499# ACPI support using the Intel ACPI Component Architecture reference
500# implementation.
501#
502# ACPI_DEBUG enables the use of the debug.acpi.level and debug.acpi.layer
503# kernel environment variables to select initial debugging levels for the
504# Intel ACPICA code.  (Note that the Intel code must also have USE_DEBUGGER
505# defined when it is built).
506#
507# ACPI_NO_SEMAPHORES makes the AcpiOs*Semaphore routines a no-op.
508#
509# Note that building ACPI into the kernel is deprecated; the module is
510# normally loaded automatically by the loader.
511
512device		acpi
513options 	ACPI_DEBUG
514#!options 	ACPI_NO_SEMAPHORES
515
516# ACPI Asus Desktop Extras. (voltage, temp, fan)
517device		acpi_aiboost
518
519# ACPI Asus Extras (LCD backlight/brightness, video output, etc.)
520device		acpi_asus
521
522# ACPI Fujitsu Extras (Buttons)
523device		acpi_fujitsu
524
525# ACPI extras driver for IBM laptops
526device         acpi_ibm
527
528# ACPI Panasonic Extras (LCD backlight/brightness, video output, etc.)
529device		acpi_panasonic
530
531# ACPI Sony extra (LCD brightness)
532device		acpi_sony
533
534# ACPI Toshiba Extras (LCD backlight/brightness, video output, etc.)
535device		acpi_toshiba
536
537# ACPI Video Extensions (LCD backlight/brightness, video output, etc.)
538device		acpi_video
539
540# ACPI Docking Station
541device		acpi_dock
542
543# The cpufreq(4) driver provides support for non-ACPI CPU frequency control
544device		cpufreq
545
546# Direct Rendering modules for 3D acceleration.
547device		drm		# DRM core module required by DRM drivers
548device		i915drm		# Intel i830 through i915
549device		mach64drm	# ATI Rage Pro, Rage Mobility P/M, Rage XL
550device		mgadrm		# AGP Matrox G200, G400, G450, G550
551device		r128drm		# ATI Rage 128
552device		radeondrm	# ATI Radeon
553device		savagedrm	# S3 Savage3D, Savage4
554device		sisdrm		# SiS 300/305, 540, 630
555device		tdfxdrm		# 3dfx Voodoo 3/4/5 and Banshee
556options 	DRM_DEBUG	# Include debug printfs (slow)
557
558#
559# mse: Logitech and ATI InPort bus mouse ports
560
561device		mse
562hint.mse.0.at="isa"
563hint.mse.0.port="0x23c"
564hint.mse.0.irq="5"
565
566#
567# Network interfaces:
568#
569
570# ar:   Arnet SYNC/570i hdlc sync 2/4 port V.35/X.21 serial driver
571#       (requires sppp)
572# arl:	Aironet Arlan 655 wireless adapters.
573# ath:  Atheros a/b/g WiFi adapters (requires ath_hal and wlan)
574# ce:   Cronyx Tau-PCI/32 sync single/dual port G.703/E1 serial adaptor
575#       with 32 HDLC subchannels (requires sppp (default), or NETGRAPH if
576#       NETGRAPH_CRONYX is configured)
577# cp:   Cronyx Tau-PCI sync single/dual/four port
578#       V.35/RS-232/RS-530/RS-449/X.21/G.703/E1/E3/T3/STS-1
579#       serial adaptor (requires sppp (default), or NETGRAPH if
580#       NETGRAPH_CRONYX is configured)
581# cs:   IBM Etherjet and other Crystal Semi CS89x0-based adapters
582# ctau: Cronyx Tau sync dual port V.35/RS-232/RS-530/RS-449/X.21/G.703/E1
583#       serial adaptor (requires sppp (default), or NETGRAPH if
584#       NETGRAPH_CRONYX is configured)
585# cx:   Cronyx Sigma multiport sync/async adapter (requires sppp (default),
586#       or NETGRAPH if NETGRAPH_CRONYX is configured)
587# ed:   Western Digital and SMC 80xx; Novell NE1000 and NE2000; 3Com 3C503
588#       HP PC Lan+, various PC Card devices
589#       (requires miibus)
590# ie:   AT&T StarLAN 10 and EN100; 3Com 3C507; unknown NI5210;
591#       Intel EtherExpress
592# ipw:	Intel PRO/Wireless 2100 IEEE 802.11 adapter
593# iwi:	Intel PRO/Wireless 2200BG/2225BG/2915ABG IEEE 802.11 adapters
594# nfe:	nVidia nForce MCP on-board Ethernet Networking (BSD open source)
595# nve:	nVidia nForce MCP on-board Ethernet Networking
596# oltr: Olicom ISA token-ring adapters OC-3115, OC-3117, OC-3118 and OC-3133.
597#       Olicom PCI token-ring adapters OC-3136, OC-3137, OC-3139, OC-3140,
598#       OC-3141, OC-3540 and OC-3250.
599# ral:	Ralink Technology IEEE 802.11 wireless adapter
600# sbni: Granch SBNI12-xx ISA and PCI adapters
601# sr:   RISCom/N2 hdlc sync 1/2 port V.35/X.21 serial driver (requires sppp)
602# ural:	Ralink Technology RT2500USB IEEE 802.11 wireless adapter
603# wl:   Lucent Wavelan (ISA card only).
604
605# Order for ISA/EISA devices is important here
606
607device		ar
608hint.ar.0.at="isa"
609hint.ar.0.port="0x300"
610hint.ar.0.irq="10"
611hint.ar.0.maddr="0xd0000"
612device		arl
613hint.arl.0.at="isa"
614hint.arl.0.irq="9"
615hint.arl.0.maddr="0xd0000"
616device		ce
617device		cp
618device		cs
619hint.cs.0.at="isa"
620hint.cs.0.port="0x300"
621device		ctau
622hint.ctau.0.at="isa"
623hint.ctau.0.port="0x240"
624hint.ctau.0.irq="15"
625hint.ctau.0.drq="7"
626device		cx
627hint.cx.0.at="isa"
628hint.cx.0.port="0x240"
629hint.cx.0.irq="15"
630hint.cx.0.drq="7"
631#options 	NETGRAPH_CRONYX		# Enable NETGRAPH support for Cronyx adapter(s)
632device		ed
633options 	ED_3C503
634options 	ED_HPP
635options 	ED_SIC
636hint.ed.0.at="isa"
637hint.ed.0.port="0x280"
638hint.ed.0.irq="5"
639hint.ed.0.maddr="0xd8000"
640device		ie			# Hints only required for Starlan
641hint.ie.2.at="isa"
642hint.ie.2.port="0x300"
643hint.ie.2.irq="5"
644hint.ie.2.maddr="0xd0000"
645device		iwi
646device		ipw
647# Hint for the i386-only ISA front-end of le(4).
648hint.le.0.at="isa"
649hint.le.0.port="0x280"
650hint.le.0.irq="10"
651hint.le.0.drq="0"
652device		nfe		# nVidia nForce MCP on-board Ethernet Networking
653device		nve		# nVidia nForce MCP on-board Ethernet Networking
654device		oltr
655hint.oltr.0.at="isa"
656device		ral
657device		sbni
658hint.sbni.0.at="isa"
659hint.sbni.0.port="0x210"
660hint.sbni.0.irq="0xefdead"
661hint.sbni.0.flags="0"
662device		sr
663hint.sr.0.at="isa"
664hint.sr.0.port="0x300"
665hint.sr.0.irq="5"
666hint.sr.0.maddr="0xd0000"
667device		ural
668device		wl
669hint.wl.0.at="isa"
670hint.wl.0.port="0x300"
671options 	WLCACHE		# enables the signal-strength cache
672options 	WLDEBUG		# enables verbose debugging output
673
674device		ath
675device		ath_hal		# Atheros HAL (includes binary component)
676#device		ath_rate_amrr	# AMRR rate control for ath driver
677#device		ath_rate_onoe	# Onoe rate control for ath driver
678device		ath_rate_sample	# SampleRate rate control for the ath driver
679#device		wlan		# 802.11 layer
680
681#
682# ATA raid adapters
683#
684device		pst
685
686#
687# Areca 11xx and 12xx series of SATA II RAID controllers.
688# CAM is required.
689#
690device		arcmsr		# Areca SATA II RAID
691
692#
693# 3ware 9000 series PATA/SATA RAID controller driver and options.
694# The driver is implemented as a SIM, and so, needs the CAM infrastructure.
695#
696options 	TWA_DEBUG		# 0-10; 10 prints the most messages.
697options 	TWA_FLASH_FIRMWARE	# firmware image bundled when defined.
698device		twa			# 3ware 9000 series PATA/SATA RAID
699
700#
701# SCSI host adapters:
702#
703# ncv: NCR 53C500 based SCSI host adapters.
704# nsp: Workbit Ninja SCSI-3 based PC Card SCSI host adapters.
705# stg: TMC 18C30, 18C50 based SCSI host adapters.
706
707device		ncv
708device		nsp
709device		stg
710hint.stg.0.at="isa"
711hint.stg.0.port="0x140"
712hint.stg.0.port="11"
713
714#
715# Adaptec FSA RAID controllers, including integrated DELL controllers,
716# the Dell PERC 2/QC and the HP NetRAID-4M
717device		aac
718device		aacp	# SCSI Passthrough interface (optional, CAM required)
719
720# The 'asr' driver provides support for current DPT/Adaptec SCSI RAID
721# controllers (SmartRAID V and VI and later).
722# These controllers require the CAM infrastructure.
723#
724device		asr
725
726#
727# Highpoint RocketRAID 182x.  This is really just software RAID on a
728# Marvell SATA chip.
729device		hptmv
730
731#
732# Highpoint RocketRAID 232x.  This is software RAID but with hardware
733# acceleration assistance for RAID_5.
734device		rr232x
735
736#
737# Highpoint RocketRaid 3xxx series SATA RAID
738device		hptiop
739
740#
741# IBM (now Adaptec) ServeRAID controllers
742device		ips
743
744#
745# SafeNet crypto driver: can be moved to the MI NOTES as soon as
746# it's tested on a big-endian machine
747#
748device		safe		# SafeNet 1141
749options 	SAFE_DEBUG	# enable debugging support: hw.safe.debug
750options 	SAFE_RNDTEST	# enable rndtest support
751
752#####################################################################
753
754#
755# Miscellaneous hardware:
756#
757# apm: Laptop Advanced Power Management (experimental)
758# ipmi: Intelligent Platform Management Interface
759# pmtimer: Timer device driver for power management events (APM or ACPI)
760# smapi: System Management Application Program Interface driver
761# smbios: DMI/SMBIOS entry point
762# vpd: Vital Product Data kernel interface
763# cy: Cyclades serial driver
764# digi: Digiboard driver
765# spic: Sony Programmable I/O controller (VAIO notebooks)
766
767# Notes on APM
768#  The flags takes the following meaning for apm0:
769#    0x0020  Statclock is broken.
770
771# Notes on the Specialix SI/XIO driver:
772#  The host card is memory, not IO mapped.
773#  The Rev 1 host cards use a 64K chunk, on a 32K boundary.
774#  The Rev 2 host cards use a 32K chunk, on a 32K boundary.
775#  The cards can use an IRQ of 11, 12 or 15.
776
777# Notes on the Sony Programmable I/O controller
778#  This is a temporary driver that should someday be replaced by something
779#  that hooks into the ACPI layer.  The device is hooked to the PIIX4's
780#  General Device 10 decoder, which means you have to fiddle with PCI
781#  registers to map it in, even though it is otherwise treated here as
782#  an ISA device.  At the moment, the driver polls, although the device
783#  is capable of generating interrupts.  It largely undocumented.
784#  The port location in the hint is where you WANT the device to be
785#  mapped.  0x10a0 seems to be traditional.  At the moment the jogdial
786#  is the only thing truly supported, but apparently a fair percentage
787#  of the Vaio extra features are controlled by this device.
788
789device		apm
790hint.apm.0.flags="0x20"
791device		ipmi
792device		smapi
793device		smbios
794device		vpd
795device		pmtimer			# Adjust system timer at wakeup time
796device		cy
797options 	CY_PCI_FASTINTR		# Use with cy_pci unless irq is shared
798hint.cy.0.at="isa"
799hint.cy.0.irq="10"
800hint.cy.0.maddr="0xd4000"
801hint.cy.0.msize="0x2000"
802device		digi
803hint.digi.0.at="isa"
804hint.digi.0.port="0x104"
805hint.digi.0.maddr="0xd0000"
806# BIOS & FEP/OS components of device digi.
807device		digi_CX
808device		digi_CX_PCI
809device		digi_EPCX
810device		digi_EPCX_PCI
811device		digi_Xe
812device		digi_Xem
813device		digi_Xr
814# Parallel (8255 PPI) basic I/O (mode 0) port (e.g. Advantech PCL-724)
815device		pbio
816hint.pbio.0.at="isa"
817hint.pbio.0.port="0x360"
818device		spic
819hint.spic.0.at="isa"
820hint.spic.0.port="0x10a0"
821# HOT1 Xilinx 6200 card (http://www.vcc.com/)
822device		xrpu
823
824#
825# Laptop/Notebook options:
826#
827# See also:
828#  apm under `Miscellaneous hardware'
829# above.
830
831# For older notebooks that signal a powerfail condition (external
832# power supply dropped, or battery state low) by issuing an NMI:
833
834options 	POWERFAIL_NMI	# make it beep instead of panicing
835
836#
837# I2C Bus
838#
839# Philips i2c bus support is provided by the `iicbus' device.
840#
841# Supported interfaces:
842# pcf	Philips PCF8584 ISA-bus controller
843#
844device		pcf
845hint.pcf.0.at="isa"
846hint.pcf.0.port="0x320"
847hint.pcf.0.irq="5"
848
849#
850# Hardware watchdog timers:
851#
852# ichwd: Intel ICH watchdog timer
853#
854device		ichwd
855
856#---------------------------------------------------------------------------
857# ISDN4BSD
858#
859# See /usr/share/examples/isdn/ROADMAP for an introduction to isdn4bsd.
860#
861# i4b passive ISDN cards support contains the following hardware drivers:
862#
863#	isic  - Siemens/Infineon ISDN ISAC/HSCX/IPAC chipset driver
864#	iwic  - Winbond W6692 PCI bus ISDN S/T interface controller
865#	ifpi  - AVM Fritz!Card PCI driver
866#	ifpi2  - AVM Fritz!Card PCI version 2 driver
867#	ihfc  - Cologne Chip HFC ISA/ISA-PnP chipset driver
868#	ifpnp - AVM Fritz!Card PnP driver
869#	itjc  - Siemens ISAC / TJNet Tiger300/320 chipset
870#
871# i4b active ISDN cards support contains the following hardware drivers:
872#
873#	iavc  - AVM B1 PCI, AVM B1 ISA, AVM T1
874#
875# Note that the ``options'' (if given) and ``device'' lines must BOTH
876# be uncommented to enable support for a given card !
877#
878# In addition to a hardware driver (and probably an option) the mandatory
879# ISDN protocol stack devices and the mandatory support device must be
880# enabled as well as one or more devices from the optional devices section.
881#
882#---------------------------------------------------------------------------
883#	isic driver (Siemens/Infineon chipsets)
884#
885device	isic
886#
887# ISA bus non-PnP Cards:
888# ----------------------
889#
890# Teles S0/8 or Niccy 1008
891options 	TEL_S0_8
892hint.isic.0.at="isa"
893hint.isic.0.maddr="0xd0000"
894hint.isic.0.irq="5"
895hint.isic.0.flags="1"
896#
897# Teles S0/16 or Creatix ISDN-S0 or Niccy 1016
898options 	TEL_S0_16
899hint.isic.0.at="isa"
900hint.isic.0.port="0xd80"
901hint.isic.0.maddr="0xd0000"
902hint.isic.0.irq="5"
903hint.isic.0.flags="2"
904#
905# Teles S0/16.3
906options 	TEL_S0_16_3
907hint.isic.0.at="isa"
908hint.isic.0.port="0xd80"
909hint.isic.0.irq="5"
910hint.isic.0.flags="3"
911#
912# AVM A1 or AVM Fritz!Card
913options 	AVM_A1
914hint.isic.0.at="isa"
915hint.isic.0.port="0x340"
916hint.isic.0.irq="5"
917hint.isic.0.flags="4"
918#
919# USRobotics Sportster ISDN TA intern
920options 	USR_STI
921hint.isic.0.at="isa"
922hint.isic.0.port="0x268"
923hint.isic.0.irq="5"
924hint.isic.0.flags="7"
925#
926# ITK ix1 Micro ( < V.3, non-PnP version )
927options 	ITKIX1
928hint.isic.0.at="isa"
929hint.isic.0.port="0x398"
930hint.isic.0.irq="10"
931hint.isic.0.flags="18"
932#
933# ELSA PCC-16
934options 	ELSA_PCC16
935hint.isic.0.at="isa"
936hint.isic.0.port="0x360"
937hint.isic.0.irq="10"
938hint.isic.0.flags="20"
939#
940# ISA bus PnP Cards:
941# ------------------
942#
943# Teles S0/16.3 PnP
944options 	TEL_S0_16_3_P
945#
946# Creatix ISDN-S0 P&P
947options 	CRTX_S0_P
948#
949# Dr. Neuhaus Niccy Go@
950options 	DRN_NGO
951#
952# Sedlbauer Win Speed
953options 	SEDLBAUER
954#
955# Dynalink IS64PH
956options 	DYNALINK
957#
958# ELSA QuickStep 1000pro ISA
959options 	ELSA_QS1ISA
960#
961# Siemens I-Surf 2.0
962options 	SIEMENS_ISURF2
963#
964# Asuscom ISDNlink 128K ISA
965options 	ASUSCOM_IPAC
966#
967# Eicon Diehl DIVA 2.0 and 2.02
968options 	EICON_DIVA
969#
970# Compaq Microcom 610 ISDN card (Compaq series PSB2222I)
971options 	COMPAQ_M610
972#
973# PCI bus Cards:
974# --------------
975#
976# ELSA MicroLink ISDN/PCI (same as ELSA QuickStep 1000pro PCI)
977options 	ELSA_QS1PCI
978#
979#---------------------------------------------------------------------------
980#	ifpnp driver for AVM Fritz!Card PnP
981#
982# AVM Fritz!Card PnP
983device		ifpnp
984#
985#---------------------------------------------------------------------------
986#	ihfc driver for Cologne Chip ISA chipsets (experimental!)
987#
988# Teles 16.3c ISA PnP
989# AcerISDN P10 ISA PnP
990# TELEINT ISDN SPEED No.1
991device		ihfc
992#
993#---------------------------------------------------------------------------
994#	ifpi driver for AVM Fritz!Card PCI
995#
996# AVM Fritz!Card PCI
997device		ifpi
998#
999#---------------------------------------------------------------------------
1000#	ifpi2 driver for AVM Fritz!Card PCI version 2
1001#
1002# AVM Fritz!Card PCI version 2
1003device		ifpi2
1004#
1005#---------------------------------------------------------------------------
1006#	iwic driver for Winbond W6692 chipset
1007#
1008# ASUSCOM P-IN100-ST-D (and other Winbond W6692 based cards)
1009device		iwic
1010#
1011#---------------------------------------------------------------------------
1012#	itjc driver for Siemens ISAC / TJNet Tiger300/320 chipset
1013#
1014# Traverse Technologies NETjet-S
1015# Teles PCI-TJ
1016device		itjc
1017#
1018#---------------------------------------------------------------------------
1019#	iavc driver (AVM active cards, needs i4bcapi driver!)
1020#
1021device		iavc
1022#
1023# AVM B1 ISA bus (PnP mode not supported!)
1024# ----------------------------------------
1025hint.iavc.0.at="isa"
1026hint.iavc.0.port="0x150"
1027hint.iavc.0.irq="5"
1028#
1029#---------------------------------------------------------------------------
1030#	ISDN Protocol Stack - mandatory for all hardware drivers
1031#
1032# Q.921 / layer 2 - i4b passive cards D channel handling
1033device		i4bq921
1034#
1035# Q.931 / layer 3 - i4b passive cards D channel handling
1036device		i4bq931
1037#
1038# layer 4 - i4b common passive and active card handling
1039device		i4b
1040#
1041#---------------------------------------------------------------------------
1042#	ISDN devices - mandatory for all hardware drivers
1043#
1044# userland driver to do ISDN tracing (for passive cards only)
1045device		i4btrc
1046options 	NI4BTRC=4
1047#
1048# userland driver to control the whole thing
1049device		i4bctl
1050#
1051#---------------------------------------------------------------------------
1052#	ISDN devices - optional
1053#
1054# userland driver for access to raw B channel
1055device		i4brbch
1056options 	NI4BRBCH=4
1057#
1058# userland driver for telephony
1059device		i4btel
1060options 	NI4BTEL=2
1061#
1062#XXXBZ# IPR and ISPPP are not usable until I4B is locked.
1063# network driver for IP over raw HDLC ISDN
1064#XXXBZ#device		i4bipr
1065#XXXBZ#options 	NI4BIPR=4
1066# enable VJ header compression detection for ipr i/f
1067#XXXBZ#options 	IPR_VJ
1068# enable logging of the first n IP packets to isdnd (n=32 here)
1069#XXXBZ#options 	IPR_LOG=32
1070#
1071# network driver for sync PPP over ISDN; requires an equivalent
1072# number of sppp device to be configured
1073#XXXBZ#device		i4bisppp
1074#XXXBZ#options 	NI4BISPPP=4
1075#
1076# B-channel interface to the netgraph subsystem
1077#XXXBZ#device		i4bing
1078#XXXBZ#options 	NI4BING=2
1079#
1080# CAPI driver needed for active ISDN cards (see iavc driver above)
1081device		i4bcapi
1082#
1083#---------------------------------------------------------------------------
1084
1085#
1086# System Management Bus (SMB)
1087#
1088options 	ENABLE_ALART		# Control alarm on Intel intpm driver
1089
1090#
1091# Set the number of PV entries per process.  Increasing this can
1092# stop panics related to heavy use of shared memory.  However, that can
1093# (combined with large amounts of physical memory) cause panics at
1094# boot time due the kernel running out of VM space.
1095#
1096# If you're tweaking this, you might also want to increase the sysctls
1097# "vm.v_free_min", "vm.v_free_reserved", and "vm.v_free_target".
1098#
1099# The value below is the one more than the default.
1100#
1101options 	PMAP_SHPGPERPROC=201
1102
1103#
1104# Change the size of the kernel virtual address space.  Due to
1105# constraints in loader(8) on i386, this must be a multiple of 4.
1106# 256 = 1 GB of kernel address space.  Increasing this also causes
1107# a reduction of the address space in user processes.  512 splits
1108# the 4GB cpu address space in half (2GB user, 2GB kernel).  For PAE
1109# kernels, the value will need to be double non-PAE.  A value of 1024
1110# for PAE kernels is necessary to split the address space in half.
1111# This will likely need to be increased to handle memory sizes >4GB.
1112# PAE kernels default to a value of 512.
1113#
1114options 	KVA_PAGES=260
1115
1116
1117#####################################################################
1118# ABI Emulation
1119
1120# Enable iBCS2 runtime support for SCO and ISC binaries
1121options 	IBCS2
1122
1123# Emulate spx device for client side of SVR3 local X interface
1124options 	SPX_HACK
1125
1126# Enable Linux ABI emulation
1127options 	COMPAT_LINUX
1128
1129# Enable i386 a.out binary support
1130options 	COMPAT_AOUT
1131
1132# Enable the linux-like proc filesystem support (requires COMPAT_LINUX
1133# and PSEUDOFS)
1134options 	LINPROCFS
1135
1136#Enable the linux-like sys filesystem support (requires COMPAT_LINUX
1137# and PSEUDOFS)
1138options		LINSYSFS
1139
1140#
1141# SysVR4 ABI emulation
1142#
1143# The svr4 ABI emulator can be statically compiled into the kernel or loaded as
1144# a KLD module.
1145# The STREAMS network emulation code can also be compiled statically or as a
1146# module.  If loaded as a module, it must be loaded before the svr4 module
1147# (the /usr/sbin/svr4 script does this for you).  If compiling statically,
1148# the `streams' device must be configured into any kernel which also
1149# specifies COMPAT_SVR4.  It is possible to have a statically-configured
1150# STREAMS device and a dynamically loadable svr4 emulator;  the /usr/sbin/svr4
1151# script understands that it doesn't need to load the `streams' module under
1152# those circumstances.
1153# Caveat:  At this time, `options KTRACE' is required for the svr4 emulator
1154# (whether static or dynamic).
1155#
1156options 	COMPAT_SVR4	# build emulator statically
1157options 	DEBUG_SVR4	# enable verbose debugging
1158device		streams		# STREAMS network driver (required for svr4).
1159
1160# Enable NDIS binary driver support
1161options 	NDISAPI
1162device		ndis
1163
1164
1165#####################################################################
1166# VM OPTIONS
1167
1168# Disable the 4 MByte page PSE CPU feature.  The PSE feature allows the
1169# kernel to use 4 MByte pages to map the kernel instead of 4k pages.
1170# This saves on the amount of memory needed for page tables needed to
1171# map the kernel.  You should only disable this feature as a temporary
1172# workaround if you are having problems with it enabled.
1173#
1174#options 	DISABLE_PSE
1175
1176# Disable the global pages PGE CPU feature.  The PGE feature allows pages
1177# to be marked with the PG_G bit.  TLB entries for these pages are not
1178# flushed from the cache when %cr3 is reloaded.  This can make context
1179# switches less expensive.  You should only disable this feature as a
1180# temporary workaround if you are having problems with it enabled.
1181#
1182#options 	DISABLE_PG_G
1183
1184# KSTACK_PAGES is the number of memory pages to assign to the kernel
1185# stack of each thread.
1186
1187options 	KSTACK_PAGES=3
1188
1189#####################################################################
1190
1191# More undocumented options for linting.
1192# Note that documenting these are not considered an affront.
1193
1194options 	FB_INSTALL_CDEV		# install a CDEV entry in /dev
1195
1196# PECOFF module (Win32 Execution Format)
1197options 	PECOFF_SUPPORT
1198options 	PECOFF_DEBUG
1199
1200options 	I4B_SMP_WORKAROUND
1201options 	I586_PMC_GUPROF=0x70000
1202options 	KBDIO_DEBUG=2
1203options 	KBD_MAXRETRY=4
1204options 	KBD_MAXWAIT=6
1205options 	KBD_RESETDELAY=201
1206
1207options 	PSM_DEBUG=1
1208
1209options 	TIMER_FREQ=((14318182+6)/12)
1210
1211options 	VM_KMEM_SIZE
1212options 	VM_KMEM_SIZE_MAX
1213options 	VM_KMEM_SIZE_SCALE
1214
1215
1216# asr old ioctls support, needed by raidutils
1217
1218options		ASR_COMPAT
1219