xref: /freebsd/sys/i386/conf/NOTES (revision d3d381b2b194b4d24853e92eecef55f262688d1a)
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# Enable the kernel DTrace hooks which are required to load the DTrace
16# kernel modules.
17#
18options 	KDTRACE_HOOKS
19
20# DTrace core
21# NOTE: introduces CDDL-licensed components into the kernel
22#device		dtrace
23
24# DTrace modules
25#device		dtrace_profile
26#device		dtrace_sdt
27#device		dtrace_fbt
28#device		dtrace_systrace
29#device		dtrace_prototype
30#device		dtnfscl
31#device		dtmalloc
32
33# Alternatively include all the DTrace modules
34#device		dtraceall
35
36
37#####################################################################
38# SMP OPTIONS:
39#
40# The apic device enables the use of the I/O APIC for interrupt delivery.
41# The apic device can be used in both UP and SMP kernels, but is required
42# for SMP kernels.  Thus, the apic device is not strictly an SMP option,
43# but it is a prerequisite for SMP.
44#
45# Notes:
46#
47# HTT CPUs should only be used if they are enabled in the BIOS.  For
48# the ACPI case, ACPI only correctly tells us about any HTT CPUs if
49# they are enabled.  However, most HTT systems do not list HTT CPUs
50# in the MP Table if they are enabled, thus we guess at the HTT CPUs
51# for the MP Table case.  However, we shouldn't try to guess and use
52# these CPUs if HTT is disabled.  Thus, HTT guessing is only enabled
53# for the MP Table if the user explicitly asks for it via the
54# MPTABLE_FORCE_HTT option.  Do NOT use this option if you have HTT
55# disabled in your BIOS.
56#
57# IPI_PREEMPTION instructs the kernel to preempt threads running on other
58# CPUS if needed.  Relies on the PREEMPTION option
59
60# Mandatory:
61device		apic			# I/O apic
62
63# Optional:
64options 	MPTABLE_FORCE_HTT	# Enable HTT CPUs with the MP Table
65options 	IPI_PREEMPTION
66
67#
68# Watchdog routines.
69#
70options 	MP_WATCHDOG
71
72# Debugging options.
73#
74options 	COUNT_XINVLTLB_HITS	# Counters for TLB events
75options 	COUNT_IPIS		# Per-CPU IPI interrupt counters
76
77
78
79#####################################################################
80# CPU OPTIONS
81
82#
83# You must specify at least one CPU (the one you intend to run on);
84# deleting the specification for CPUs you don't need to use may make
85# parts of the system run faster.
86#
87cpu		I486_CPU
88cpu		I586_CPU		# aka Pentium(tm)
89cpu		I686_CPU		# aka Pentium Pro(tm)
90
91#
92# Options for CPU features.
93#
94# CPU_ATHLON_SSE_HACK tries to enable SSE instructions when the BIOS has
95# forgotten to enable them.
96#
97# CPU_BLUELIGHTNING_3X enables triple-clock mode on IBM Blue Lightning
98# CPU if CPU supports it.  The default is double-clock mode on
99# BlueLightning CPU box.
100#
101# CPU_BLUELIGHTNING_FPU_OP_CACHE enables FPU operand cache on IBM
102# BlueLightning CPU.  It works only with Cyrix FPU, and this option
103# should not be used with Intel FPU.
104#
105# CPU_BTB_EN enables branch target buffer on Cyrix 5x86 (NOTE 1).
106#
107# CPU_CYRIX_NO_LOCK enables weak locking for the entire address space
108# of Cyrix 6x86 and 6x86MX CPUs by setting the NO_LOCK bit of CCR1.
109# Otherwise, the NO_LOCK bit of CCR1 is cleared.  (NOTE 3)
110#
111# CPU_DIRECT_MAPPED_CACHE sets L1 cache of Cyrix 486DLC CPU in direct
112# mapped mode.  Default is 2-way set associative mode.
113#
114# CPU_DISABLE_5X86_LSSER disables load store serialize (i.e., enables
115# reorder).  This option should not be used if you use memory mapped
116# I/O device(s).
117#
118# CPU_ELAN enables support for AMDs ElanSC520 CPU.
119#    CPU_ELAN_PPS enables precision timestamp code.
120#    CPU_ELAN_XTAL sets the clock crystal frequency in Hz.
121#
122# CPU_ENABLE_LONGRUN enables support for Transmeta Crusoe LongRun
123# technology which allows to restrict power consumption of the CPU by
124# using group of hw.crusoe.* sysctls.
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_ELAN
196options 	CPU_ELAN_PPS
197options 	CPU_ELAN_XTAL=32768000
198options 	CPU_ENABLE_LONGRUN
199options 	CPU_FASTER_5X86_FPU
200options 	CPU_GEODE
201options 	CPU_I486_ON_386
202options 	CPU_IORT
203options 	CPU_L2_LATENCY=5
204options 	CPU_LOOP_EN
205options 	CPU_PPRO2CELERON
206options 	CPU_RSTK_EN
207options 	CPU_SOEKRIS
208options 	CPU_SUSP_HLT
209options 	CPU_UPGRADE_HW_CACHE
210options 	CPU_WT_ALLOC
211options 	CYRIX_CACHE_WORKS
212options 	CYRIX_CACHE_REALLY_WORKS
213#options 	NO_F00F_HACK
214
215# Debug options
216options 	NPX_DEBUG	# enable npx debugging
217
218#
219# PERFMON causes the driver for Pentium/Pentium Pro performance counters
220# to be compiled.  See perfmon(4) for more information.
221#
222options 	PERFMON
223
224
225#####################################################################
226# NETWORKING OPTIONS
227
228#
229# DEVICE_POLLING adds support for mixed interrupt-polling handling
230# of network device drivers, which has significant benefits in terms
231# of robustness to overloads and responsivity, as well as permitting
232# accurate scheduling of the CPU time between kernel network processing
233# and other activities.  The drawback is a moderate (up to 1/HZ seconds)
234# potential increase in response times.
235# It is strongly recommended to use HZ=1000 or 2000 with DEVICE_POLLING
236# to achieve smoother behaviour.
237# Additionally, you can enable/disable polling at runtime with help of
238# the ifconfig(8) utility, and select the CPU fraction reserved to
239# userland with the sysctl variable kern.polling.user_frac
240# (default 50, range 0..100).
241#
242# Not all device drivers support this mode of operation at the time of
243# this writing.  See polling(4) for more details.
244
245options 	DEVICE_POLLING
246
247# BPF_JITTER adds support for BPF just-in-time compiler.
248
249options 	BPF_JITTER
250
251# OpenFabrics Enterprise Distribution (Infiniband).
252options 	OFED
253options 	OFED_DEBUG_INIT
254
255# Sockets Direct Protocol
256options 	SDP
257options 	SDP_DEBUG
258
259# IP over Infiniband
260options 	IPOIB
261options 	IPOIB_DEBUG
262options 	IPOIB_CM
263
264
265#####################################################################
266# CLOCK OPTIONS
267
268# Provide read/write access to the memory in the clock chip.
269device		nvram		# Access to rtc cmos via /dev/nvram
270
271
272#####################################################################
273# MISCELLANEOUS DEVICES AND OPTIONS
274
275device		speaker		#Play IBM BASIC-style noises out your speaker
276hint.speaker.0.at="isa"
277hint.speaker.0.port="0x61"
278device		gzip		#Exec gzipped a.out's.  REQUIRES COMPAT_AOUT!
279device		apm_saver	# Requires APM
280
281
282#####################################################################
283# HARDWARE BUS CONFIGURATION
284
285#
286# ISA bus
287#
288device		isa
289
290#
291# Options for `isa':
292#
293# AUTO_EOI_1 enables the `automatic EOI' feature for the master 8259A
294# interrupt controller.  This saves about 0.7-1.25 usec for each interrupt.
295# This option breaks suspend/resume on some portables.
296#
297# AUTO_EOI_2 enables the `automatic EOI' feature for the slave 8259A
298# interrupt controller.  This saves about 0.7-1.25 usec for each interrupt.
299# Automatic EOI is documented not to work for for the slave with the
300# original i8259A, but it works for some clones and some integrated
301# versions.
302#
303# MAXMEM specifies the amount of RAM on the machine; if this is not
304# specified, FreeBSD will first read the amount of memory from the CMOS
305# RAM, so the amount of memory will initially be limited to 64MB or 16MB
306# depending on the BIOS.  If the BIOS reports 64MB, a memory probe will
307# then attempt to detect the installed amount of RAM.  If this probe
308# fails to detect >64MB RAM you will have to use the MAXMEM option.
309# The amount is in kilobytes, so for a machine with 128MB of RAM, it would
310# be 131072 (128 * 1024).
311#
312# BROKEN_KEYBOARD_RESET disables the use of the keyboard controller to
313# reset the CPU for reboot.  This is needed on some systems with broken
314# keyboard controllers.
315
316options 	AUTO_EOI_1
317#options 	AUTO_EOI_2
318
319options 	MAXMEM=(128*1024)
320#options 	BROKEN_KEYBOARD_RESET
321
322#
323# AGP GART support
324device		agp
325
326# AGP debugging.
327options 	AGP_DEBUG
328
329
330#####################################################################
331# HARDWARE DEVICE CONFIGURATION
332
333# To include support for VGA VESA video modes
334options 	VESA
335
336# Turn on extra debugging checks and output for VESA support.
337options 	VESA_DEBUG
338
339device		dpms		# DPMS suspend & resume via VESA BIOS
340
341# x86 real mode BIOS emulator, required by atkbdc/dpms/vesa
342options 	X86BIOS
343
344#
345# Hints for the non-optional Numeric Processing eXtension driver.
346hint.npx.0.flags="0x0"
347hint.npx.0.irq="13"
348
349#
350# `flags' for npx0:
351#	0x01	don't use the npx registers to optimize bcopy.
352#	0x02	don't use the npx registers to optimize bzero.
353#	0x04	don't use the npx registers to optimize copyin or copyout.
354# The npx registers are normally used to optimize copying and zeroing when
355# all of the following conditions are satisfied:
356#	I586_CPU is an option
357#	the cpu is an i586 (perhaps not a Pentium)
358#	the probe for npx0 succeeds
359#	INT 16 exception handling works.
360# Then copying and zeroing using the npx registers is normally 30-100% faster.
361# The flags can be used to control cases where it doesn't work or is slower.
362# Setting them at boot time using hints works right (the optimizations
363# are not used until later in the bootstrap when npx0 is attached).
364# Flag 0x08 automatically disables the i586 optimized routines.
365#
366
367#
368# Optional devices:
369#
370
371# PS/2 mouse
372device		psm
373hint.psm.0.at="atkbdc"
374hint.psm.0.irq="12"
375
376# Options for psm:
377options 	PSM_HOOKRESUME		#hook the system resume event, useful
378					#for some laptops
379options 	PSM_RESETAFTERSUSPEND	#reset the device at the resume event
380
381# The keyboard controller; it controls the keyboard and the PS/2 mouse.
382device		atkbdc
383hint.atkbdc.0.at="isa"
384hint.atkbdc.0.port="0x060"
385
386# The AT keyboard
387device		atkbd
388hint.atkbd.0.at="atkbdc"
389hint.atkbd.0.irq="1"
390
391# Options for atkbd:
392options 	ATKBD_DFLT_KEYMAP	# specify the built-in keymap
393makeoptions	ATKBD_DFLT_KEYMAP=fr.dvorak
394
395# `flags' for atkbd:
396#       0x01    Force detection of keyboard, else we always assume a keyboard
397#       0x02    Don't reset keyboard, useful for some newer ThinkPads
398#	0x03	Force detection and avoid reset, might help with certain
399#		dockingstations
400#       0x04    Old-style (XT) keyboard support, useful for older ThinkPads
401
402# Video card driver for VGA adapters.
403device		vga
404hint.vga.0.at="isa"
405
406# Options for vga:
407# Try the following option if the mouse pointer is not drawn correctly
408# or font does not seem to be loaded properly.  May cause flicker on
409# some systems.
410options 	VGA_ALT_SEQACCESS
411
412# If you can dispense with some vga driver features, you may want to
413# use the following options to save some memory.
414#options 	VGA_NO_FONT_LOADING	# don't save/load font
415#options 	VGA_NO_MODE_CHANGE	# don't change video modes
416
417# Older video cards may require this option for proper operation.
418options 	VGA_SLOW_IOACCESS	# do byte-wide i/o's to TS and GDC regs
419
420# The following option probably won't work with the LCD displays.
421options 	VGA_WIDTH90		# support 90 column modes
422
423# Debugging.
424options 	VGA_DEBUG
425
426# vt(4) drivers.
427device		vt_vga
428
429# Linear framebuffer driver for S3 VESA 1.2 cards. Works on top of VESA.
430device		s3pci
431
432# 3Dfx Voodoo Graphics, Voodoo II /dev/3dfx CDEV support.  This will create
433# the /dev/3dfx0 device to work with glide implementations.  This should get
434# linked to /dev/3dfx and /dev/voodoo.  Note that this is not the same as
435# the tdfx DRI module from XFree86 and is completely unrelated.
436#
437# To enable Linuxulator support, one must also include COMPAT_LINUX in the
438# config as well.  The other option is to load both as modules.
439
440device		tdfx			# Enable 3Dfx Voodoo support
441device		tdfx_linux		# Enable Linuxulator support
442
443#
444# ACPI support using the Intel ACPI Component Architecture reference
445# implementation.
446#
447# ACPI_DEBUG enables the use of the debug.acpi.level and debug.acpi.layer
448# kernel environment variables to select initial debugging levels for the
449# Intel ACPICA code.  (Note that the Intel code must also have USE_DEBUGGER
450# defined when it is built).
451
452device		acpi
453options 	ACPI_DEBUG
454options 	ACPI_DMAR
455
456# ACPI WMI Mapping driver
457device		acpi_wmi
458
459# ACPI Asus Extras (LCD backlight/brightness, video output, etc.)
460device		acpi_asus
461
462# ACPI Fujitsu Extras (Buttons)
463device		acpi_fujitsu
464
465# ACPI extras driver for HP laptops
466device		acpi_hp
467
468# ACPI extras driver for IBM laptops
469device		acpi_ibm
470
471# ACPI Panasonic Extras (LCD backlight/brightness, video output, etc.)
472device		acpi_panasonic
473
474# ACPI Sony extra (LCD brightness)
475device		acpi_sony
476
477# ACPI Toshiba Extras (LCD backlight/brightness, video output, etc.)
478device		acpi_toshiba
479
480# ACPI Video Extensions (LCD backlight/brightness, video output, etc.)
481device		acpi_video
482
483# ACPI Docking Station
484device		acpi_dock
485
486# ACPI ASOC ATK0110 ASUSTeK AI Booster (voltage, temperature and fan sensors)
487device		aibs
488
489# The cpufreq(4) driver provides support for non-ACPI CPU frequency control
490device		cpufreq
491
492# Direct Rendering modules for 3D acceleration.
493device		drm		# DRM core module required by DRM drivers
494device		mach64drm	# ATI Rage Pro, Rage Mobility P/M, Rage XL
495device		mgadrm		# AGP Matrox G200, G400, G450, G550
496device		r128drm		# ATI Rage 128
497device		savagedrm	# S3 Savage3D, Savage4
498device		sisdrm		# SiS 300/305, 540, 630
499device		tdfxdrm		# 3dfx Voodoo 3/4/5 and Banshee
500device		viadrm		# VIA
501options 	DRM_DEBUG	# Include debug printfs (slow)
502
503#
504# mse: Logitech and ATI InPort bus mouse ports
505
506device		mse
507hint.mse.0.at="isa"
508hint.mse.0.port="0x23c"
509hint.mse.0.irq="5"
510
511#
512# Network interfaces:
513#
514
515# bxe:  Broadcom NetXtreme II (BCM5771X/BCM578XX) PCIe 10Gb Ethernet
516#       adapters.
517# ce:   Cronyx Tau-PCI/32 sync single/dual port G.703/E1 serial adaptor
518#       with 32 HDLC subchannels (requires sppp (default), or NETGRAPH if
519#       NETGRAPH_CRONYX is configured)
520# cp:   Cronyx Tau-PCI sync single/dual/four port
521#       V.35/RS-232/RS-530/RS-449/X.21/G.703/E1/E3/T3/STS-1
522#       serial adaptor (requires sppp (default), or NETGRAPH if
523#       NETGRAPH_CRONYX is configured)
524# cs:   IBM Etherjet and other Crystal Semi CS89x0-based adapters
525# ctau: Cronyx Tau sync dual port V.35/RS-232/RS-530/RS-449/X.21/G.703/E1
526#       serial adaptor (requires sppp (default), or NETGRAPH if
527#       NETGRAPH_CRONYX is configured)
528# ed:   Western Digital and SMC 80xx; Novell NE1000 and NE2000; 3Com 3C503
529#       HP PC Lan+, various PC Card devices
530#       (requires miibus)
531# ipw:	Intel PRO/Wireless 2100 IEEE 802.11 adapter
532# iwi:	Intel PRO/Wireless 2200BG/2225BG/2915ABG IEEE 802.11 adapters
533#	Requires the iwi firmware module
534# iwn:	Intel Wireless WiFi Link 1000/105/135/2000/4965/5000/6000/6050 abgn
535#	802.11 network adapters
536#	Requires the iwn firmware module
537# mthca: Mellanox HCA InfiniBand
538# mlx4ib: Mellanox ConnectX HCA InfiniBand
539# mlx4en: Mellanox ConnectX HCA Ethernet
540# nfe:	nVidia nForce MCP on-board Ethernet Networking (BSD open source)
541# sbni: Granch SBNI12-xx ISA and PCI adapters
542# vmx:	VMware VMXNET3 Ethernet (BSD open source)
543# wpi:	Intel 3945ABG Wireless LAN controller
544#	Requires the wpi firmware module
545
546# Order for ISA/EISA devices is important here
547
548device          bxe             # Broadcom NetXtreme II BCM5771X/BCM578XX 10GbE
549device		ce
550device		cp
551device		cs		# Crystal Semiconductor CS89x0 NIC
552hint.cs.0.at="isa"
553hint.cs.0.port="0x300"
554device		ctau
555hint.ctau.0.at="isa"
556hint.ctau.0.port="0x240"
557hint.ctau.0.irq="15"
558hint.ctau.0.drq="7"
559#options 	NETGRAPH_CRONYX		# Enable NETGRAPH support for Cronyx adapter(s)
560device		ed		# NE[12]000, SMC Ultra, 3c503, DS8390 cards
561options 	ED_3C503
562options 	ED_HPP
563options 	ED_SIC
564hint.ed.0.at="isa"
565hint.ed.0.port="0x280"
566hint.ed.0.irq="5"
567hint.ed.0.maddr="0xd8000"
568device		ipw		# Intel 2100 wireless NICs.
569device		iwi		# Intel 2200BG/2225BG/2915ABG wireless NICs.
570device		iwn		# Intel 4965/1000/5000/6000 wireless NICs.
571# Hint for the i386-only ISA front-end of le(4).
572hint.le.0.at="isa"
573hint.le.0.port="0x280"
574hint.le.0.irq="10"
575hint.le.0.drq="0"
576device  	mthca		# Mellanox HCA InfiniBand
577device		mlx4		# Shared code module between IB and Ethernet
578device  	mlx4ib		# Mellanox ConnectX HCA InfiniBand
579device  	mlx4en		# Mellanox ConnectX HCA Ethernet
580device		nfe		# nVidia nForce MCP on-board Ethernet
581device		sbni
582hint.sbni.0.at="isa"
583hint.sbni.0.port="0x210"
584hint.sbni.0.irq="0xefdead"
585hint.sbni.0.flags="0"
586device		vmx		# VMware VMXNET3 Ethernet
587device		wpi		# Intel 3945ABG wireless NICs.
588
589# IEEE 802.11 adapter firmware modules
590
591# Intel PRO/Wireless 2100 firmware:
592#   ipwfw:		BSS/IBSS/monitor mode firmware
593#   ipwbssfw:		BSS mode firmware
594#   ipwibssfw:		IBSS mode firmware
595#   ipwmonitorfw:	Monitor mode firmware
596# Intel PRO/Wireless 2200BG/2225BG/2915ABG firmware:
597#   iwifw:		BSS/IBSS/monitor mode firmware
598#   iwibssfw:		BSS mode firmware
599#   iwiibssfw:		IBSS mode firmware
600#   iwimonitorfw:	Monitor mode firmware
601# Intel Wireless WiFi Link 4965/1000/5000/6000 series firmware:
602#   iwnfw:		Single module to support all devices
603#   iwn1000fw:		Specific module for the 1000 only
604#   iwn105fw:		Specific module for the 105 only
605#   iwn135fw:		Specific module for the 135 only
606#   iwn2000fw:		Specific module for the 2000 only
607#   iwn2030fw:		Specific module for the 2030 only
608#   iwn4965fw:		Specific module for the 4965 only
609#   iwn5000fw:		Specific module for the 5000 only
610#   iwn5150fw:		Specific module for the 5150 only
611#   iwn6000fw:		Specific module for the 6000 only
612#   iwn6000g2afw:	Specific module for the 6000g2a only
613#   iwn6000g2bfw:	Specific module for the 6000g2b only
614#   iwn6050fw:		Specific module for the 6050 only
615# wpifw:	Intel 3945ABG Wireless LAN Controller firmware
616
617device		iwifw
618device		iwibssfw
619device		iwiibssfw
620device		iwimonitorfw
621device		ipwfw
622device		ipwbssfw
623device		ipwibssfw
624device		ipwmonitorfw
625device		iwnfw
626device		iwn1000fw
627device		iwn105fw
628device		iwn135fw
629device		iwn2000fw
630device		iwn2030fw
631device		iwn4965fw
632device		iwn5000fw
633device		iwn5150fw
634device		iwn6000fw
635device		iwn6000g2afw
636device		iwn6000g2bfw
637device		iwn6050fw
638device		wpifw
639
640#
641# Non-Transparent Bridge (NTB) drivers
642#
643device		if_ntb		# Virtual NTB network interface
644device		ntb_transport	# NTB packet transport driver
645device		ntb		# NTB hardware interface
646device		ntb_hw_intel	# Intel NTB hardware driver
647device		ntb_hw_plx	# PLX NTB hardware driver
648
649#
650# ATA raid adapters
651#
652device		pst
653
654#
655# Areca 11xx and 12xx series of SATA II RAID controllers.
656# CAM is required.
657#
658device		arcmsr		# Areca SATA II RAID
659
660#
661# 3ware 9000 series PATA/SATA RAID controller driver and options.
662# The driver is implemented as a SIM, and so, needs the CAM infrastructure.
663#
664options 	TWA_DEBUG		# 0-10; 10 prints the most messages.
665device		twa			# 3ware 9000 series PATA/SATA RAID
666
667#
668# SCSI host adapters:
669#
670# ncv: NCR 53C500 based SCSI host adapters.
671# nsp: Workbit Ninja SCSI-3 based PC Card SCSI host adapters.
672# stg: TMC 18C30, 18C50 based SCSI host adapters.
673
674device		ncv
675device		nsp
676device		stg
677hint.stg.0.at="isa"
678hint.stg.0.port="0x140"
679hint.stg.0.port="11"
680
681#
682# Adaptec FSA RAID controllers, including integrated DELL controllers,
683# the Dell PERC 2/QC and the HP NetRAID-4M
684device		aac
685device		aacp	# SCSI Passthrough interface (optional, CAM required)
686
687#
688# Adaptec by PMC RAID controllers, Series 6/7/8 and upcoming families
689device		aacraid		# Container interface, CAM required
690
691#
692# Highpoint RocketRAID 27xx.
693device		hpt27xx
694
695#
696# Highpoint RocketRAID 182x.
697device		hptmv
698
699#
700# Highpoint DC7280 and R750.
701device		hptnr
702
703#
704# Highpoint RocketRAID.  Supports RR172x, RR222x, RR2240, RR232x, RR2340,
705# RR2210, RR174x, RR2522, RR231x, RR230x.
706device		hptrr
707
708#
709# Highpoint RocketRaid 3xxx series SATA RAID
710device		hptiop
711
712#
713# Intel integrated Memory Controller (iMC) SMBus controller
714#	Sandybridge-Xeon, Ivybridge-Xeon, Haswell-Xeon, Broadwell-Xeon
715device		imcsmb
716
717#
718# IBM (now Adaptec) ServeRAID controllers
719device		ips
720
721#
722# Intel C600 (Patsburg) integrated SAS controller
723device		isci
724options 	ISCI_LOGGING	# enable debugging in isci HAL
725
726#
727# NVM Express (NVMe) support
728device         nvme    # base NVMe driver
729device         nvd     # expose NVMe namespaces as disks, depends on nvme
730
731#
732# PMC-Sierra SAS/SATA controller
733device		pmspcv
734#
735# SafeNet crypto driver: can be moved to the MI NOTES as soon as
736# it's tested on a big-endian machine
737#
738device		safe		# SafeNet 1141
739options 	SAFE_DEBUG	# enable debugging support: hw.safe.debug
740options 	SAFE_RNDTEST	# enable rndtest support
741
742#
743# glxiic is an I2C driver for the AMD Geode LX CS5536 System Management Bus
744# controller.  Requires 'device iicbus'.
745#
746device		glxiic		# AMD Geode LX CS5536 System Management Bus
747
748#
749# glxsb is a driver for the Security Block in AMD Geode LX processors.
750# Requires 'device crypto'.
751#
752device		glxsb		# AMD Geode LX Security Block
753
754#
755# VirtIO support
756#
757# The virtio entry provides a generic bus for use by the device drivers.
758# It must be combined with an interface that communicates with the host.
759# Multiple such interfaces defined by the VirtIO specification. FreeBSD
760# only has support for PCI. Therefore, virtio_pci must be statically
761# compiled in or loaded as a module for the device drivers to function.
762#
763device		virtio		# Generic VirtIO bus (required)
764device		virtio_pci	# VirtIO PCI Interface
765device		vtnet		# VirtIO Ethernet device
766device		virtio_blk	# VirtIO Block device
767device		virtio_scsi	# VirtIO SCSI device
768device		virtio_balloon	# VirtIO Memory Balloon device
769device		virtio_random	# VirtIO Entropy device
770device		virtio_console	# VirtIO Console device
771
772device 		hyperv		# HyperV drivers
773
774#####################################################################
775
776#
777# Miscellaneous hardware:
778#
779# apm: Laptop Advanced Power Management (experimental)
780# ipmi: Intelligent Platform Management Interface
781# smapi: System Management Application Program Interface driver
782# smbios: DMI/SMBIOS entry point
783# vpd: Vital Product Data kernel interface
784# pbio: Parallel (8255 PPI) basic I/O (mode 0) port (e.g. Advantech PCL-724)
785# asmc: Apple System Management Controller
786# si: Specialix International SI/XIO or SX intelligent serial card driver
787# tpm: Trusted Platform Module
788
789# Notes on APM
790#  The flags takes the following meaning for apm0:
791#    0x0020  Statclock is broken.
792
793# Notes on the Specialix SI/XIO driver:
794#  The host card is memory, not IO mapped.
795#  The Rev 1 host cards use a 64K chunk, on a 32K boundary.
796#  The Rev 2 host cards use a 32K chunk, on a 32K boundary.
797#  The cards can use an IRQ of 11, 12 or 15.
798
799# Notes on the Sony Programmable I/O controller
800#  This is a temporary driver that should someday be replaced by something
801#  that hooks into the ACPI layer.  The device is hooked to the PIIX4's
802#  General Device 10 decoder, which means you have to fiddle with PCI
803#  registers to map it in, even though it is otherwise treated here as
804#  an ISA device.  At the moment, the driver polls, although the device
805#  is capable of generating interrupts.  It largely undocumented.
806#  The port location in the hint is where you WANT the device to be
807#  mapped.  0x10a0 seems to be traditional.  At the moment the jogdial
808#  is the only thing truly supported, but apparently a fair percentage
809#  of the Vaio extra features are controlled by this device.
810
811device		apm
812hint.apm.0.flags="0x20"
813device		ipmi
814device		smapi
815device		smbios
816device		vpd
817device		pbio
818hint.pbio.0.at="isa"
819hint.pbio.0.port="0x360"
820device		asmc
821device		tpm
822device		padlock_rng	# VIA Padlock RNG
823device		rdrand_rng	# Intel Bull Mountain RNG
824device		aesni		# AES-NI OpenCrypto module
825
826#
827# Laptop/Notebook options:
828#
829# See also:
830#  apm under `Miscellaneous hardware'
831# above.
832
833# For older notebooks that signal a powerfail condition (external
834# power supply dropped, or battery state low) by issuing an NMI:
835
836options 	POWERFAIL_NMI	# make it beep instead of panicing
837
838#
839# I2C Bus
840#
841# Philips i2c bus support is provided by the `iicbus' device.
842#
843# Supported interfaces:
844# pcf	Philips PCF8584 ISA-bus controller
845#
846device		pcf
847hint.pcf.0.at="isa"
848hint.pcf.0.port="0x320"
849hint.pcf.0.irq="5"
850
851#
852# Hardware watchdog timers:
853#
854# ichwd: Intel ICH watchdog timer
855# amdsbwd: AMD SB7xx watchdog timer
856# viawd: VIA south bridge watchdog timer
857# wbwd: Winbond watchdog timer
858#
859device		ichwd
860device		amdsbwd
861device		viawd
862device		wbwd
863
864#
865# Temperature sensors:
866#
867# coretemp: on-die sensor on Intel Core and newer CPUs
868# amdtemp: on-die sensor on AMD K8/K10/K11 CPUs
869#
870device		coretemp
871device		amdtemp
872
873#
874# CPU control pseudo-device. Provides access to MSRs, CPUID info and
875# microcode update feature.
876#
877device		cpuctl
878
879#
880# System Management Bus (SMB)
881#
882options 	ENABLE_ALART		# Control alarm on Intel intpm driver
883
884#
885# Set the number of PV entries per process.  Increasing this can
886# stop panics related to heavy use of shared memory.  However, that can
887# (combined with large amounts of physical memory) cause panics at
888# boot time due the kernel running out of VM space.
889#
890# If you're tweaking this, you might also want to increase the sysctls
891# "vm.v_free_min", "vm.v_free_reserved", and "vm.v_free_target".
892#
893# The value below is the one more than the default.
894#
895options 	PMAP_SHPGPERPROC=201
896
897#
898# Number of initial kernel page table pages used for early bootstrap.
899# This number should include enough pages to map the kernel, any
900# modules or other data loaded with the kernel by the loader, and data
901# structures allocated before the VM system is initialized such as the
902# vm_page_t array.  Each page table page maps 4MB (2MB with PAE).
903#
904options 	NKPT=31
905
906
907#####################################################################
908# ABI Emulation
909
910# Enable iBCS2 runtime support for SCO and ISC binaries
911#options 	IBCS2
912
913# Emulate spx device for client side of SVR3 local X interface
914options 	SPX_HACK
915
916# Enable (32-bit) a.out binary support
917options 	COMPAT_AOUT
918
919# Enable 32-bit runtime support for CloudABI binaries.
920options 	COMPAT_CLOUDABI32
921
922# Enable Linux ABI emulation
923options 	COMPAT_LINUX
924
925# Enable the linux-like proc filesystem support (requires COMPAT_LINUX
926# and PSEUDOFS)
927options 	LINPROCFS
928
929#Enable the linux-like sys filesystem support (requires COMPAT_LINUX
930# and PSEUDOFS)
931options 	LINSYSFS
932
933# Enable NDIS binary driver support
934options 	NDISAPI
935device		ndis
936
937
938#####################################################################
939# VM OPTIONS
940
941# KSTACK_PAGES is the number of memory pages to assign to the kernel
942# stack of each thread.
943
944options 	KSTACK_PAGES=5
945
946# Enable detailed accounting by the PV entry allocator.
947
948options 	PV_STATS
949
950#####################################################################
951
952# More undocumented options for linting.
953# Note that documenting these are not considered an affront.
954
955options 	FB_INSTALL_CDEV		# install a CDEV entry in /dev
956
957options 	I586_PMC_GUPROF=0x70000
958options 	KBDIO_DEBUG=2
959options 	KBD_MAXRETRY=4
960options 	KBD_MAXWAIT=6
961options 	KBD_RESETDELAY=201
962
963options 	PSM_DEBUG=1
964
965options 	TIMER_FREQ=((14318182+6)/12)
966
967options 	VM_KMEM_SIZE
968options 	VM_KMEM_SIZE_MAX
969options 	VM_KMEM_SIZE_SCALE
970
971
972