xref: /freebsd/sys/conf/NOTES (revision 6cd047a0bb2ba4a57318fc8522c35927e009cfc9)
11519d15cSJohn Baldwin# $FreeBSD$
22365e64fSRodney W. Grimes#
319dde963SPeter Wemm# NOTES -- Lines that can be cut/pasted into kernel and hints configs.
4f71c01ccSPeter Wemm#
5f71c01ccSPeter Wemm# Lines that begin with 'device', 'options', 'machine', 'ident', 'maxusers',
61519d15cSJohn Baldwin# 'makeoptions', 'hints', etc. go into the kernel configuration that you
7f71c01ccSPeter Wemm# run config(8) with.
8f71c01ccSPeter Wemm#
9b147fcf9SBruce Evans# Lines that begin with 'hint.' are NOT for config(8), they go into your
10f71c01ccSPeter Wemm# hints file.  See /boot/device.hints and/or the 'hints' config(8) directive.
112365e64fSRodney W. Grimes#
125d4850e7SAlexander Langer# Please use ``make LINT'' to create an old-style LINT file if you want to
135d4850e7SAlexander Langer# do kernel test-builds.
145d4850e7SAlexander Langer#
15dd267672SJohn Baldwin# This file contains machine independent kernel configuration notes.  For
16dd267672SJohn Baldwin# machine dependent notes, look in /sys/<arch>/conf/NOTES.
17dd267672SJohn Baldwin#
181519d15cSJohn Baldwin
191519d15cSJohn Baldwin#
201519d15cSJohn Baldwin# NOTES conventions and style guide:
211519d15cSJohn Baldwin#
221519d15cSJohn Baldwin# Large block comments should begin and end with a line containing only a
231519d15cSJohn Baldwin# comment character.
241519d15cSJohn Baldwin#
251519d15cSJohn Baldwin# To describe a particular object, a block comment (if it exists) should
261519d15cSJohn Baldwin# come first.  Next should come device, options, and hints lines in that
271519d15cSJohn Baldwin# order.  All device and option lines must be described by a comment that
281519d15cSJohn Baldwin# doesn't just expand the device or option name.  Use only a concise
291519d15cSJohn Baldwin# comment on the same line if possible.  Very detailed descriptions of
301519d15cSJohn Baldwin# devices and subsystems belong in man pages.
311519d15cSJohn Baldwin#
32eb4f7a81SNate Lawson# A space followed by a tab separates 'options' from an option name.  Two
331519d15cSJohn Baldwin# spaces followed by a tab separate 'device' from a device name.  Comments
341519d15cSJohn Baldwin# after an option or device should use one space after the comment character.
351519d15cSJohn Baldwin# To comment out a negative option that disables code and thus should not be
36eb4f7a81SNate Lawson# enabled for LINT builds, precede 'options' with "#!".
372365e64fSRodney W. Grimes#
382365e64fSRodney W. Grimes
396a8d6623SGarrett Wollman#
406a8d6623SGarrett Wollman# This is the ``identification'' of the kernel.  Usually this should
416a8d6623SGarrett Wollman# be the same as the name of your kernel.
426a8d6623SGarrett Wollman#
436a8d6623SGarrett Wollmanident		LINT
446a8d6623SGarrett Wollman
456a8d6623SGarrett Wollman#
466a8d6623SGarrett Wollman# The `maxusers' parameter controls the static sizing of a number of
47ab0f83bdSRuslan Ermilov# internal system tables by a formula defined in subr_param.c.
48ab0f83bdSRuslan Ermilov# Omitting this parameter or setting it to 0 will cause the system to
49ab0f83bdSRuslan Ermilov# auto-size based on physical memory.
506a8d6623SGarrett Wollman#
516a8d6623SGarrett Wollmanmaxusers	10
526a8d6623SGarrett Wollman
536a8d6623SGarrett Wollman#
547bf01a14SPeter Wemm# The `makeoptions' parameter allows variables to be passed to the
55503e6666SBruce Evans# generated Makefile in the build area.
56503e6666SBruce Evans#
57503e6666SBruce Evans# CONF_CFLAGS gives some extra compiler flags that are added to ${CFLAGS}
58503e6666SBruce Evans# after most other flags.  Here we use it to inhibit use of non-optimal
59503e6666SBruce Evans# gcc builtin functions (e.g., memcmp).
60503e6666SBruce Evans#
61503e6666SBruce Evans# DEBUG happens to be magic.
627bf01a14SPeter Wemm# The following is equivalent to 'config -g KERNELNAME' and creates
637bf01a14SPeter Wemm# 'kernel.debug' compiled with -g debugging as well as a normal
647bf01a14SPeter Wemm# 'kernel'.  Use 'make install.debug' to install the debug kernel
657bf01a14SPeter Wemm# but that isn't normally necessary as the debug symbols are not loaded
667bf01a14SPeter Wemm# by the kernel and are not useful there anyway.
677bf01a14SPeter Wemm#
682c8635c6SPeter Wemm# KERNEL can be overridden so that you can change the default name of your
692c8635c6SPeter Wemm# kernel.
702c8635c6SPeter Wemm#
710e3d06b1SWarner Losh# MODULES_OVERRIDE can be used to limit modules built to a specific list.
720e3d06b1SWarner Losh#
73503e6666SBruce Evansmakeoptions	CONF_CFLAGS=-fno-builtin  #Don't allow use of memcmp, etc.
745895e3c8SPeter Wemm#makeoptions	DEBUG=-g		#Build kernel with gdb(1) debug symbols
752c8635c6SPeter Wemm#makeoptions	KERNEL=foo		#Build kernel "foo" and install "/foo"
760e3d06b1SWarner Losh# Only build Linux API modules and plus those parts of the sound system I need.
77684acf85SSeigo Tanimura#makeoptions	MODULES_OVERRIDE="linux sound/sound sound/driver/maestro3"
78fa75a3c2SPoul-Henning Kampmakeoptions	DESTDIR=/tmp
79fa75a3c2SPoul-Henning Kamp
803236b30eSGreg Lehey#
81480c6b8aSGreg Lehey# FreeBSD processes are subject to certain limits to their consumption
82480c6b8aSGreg Lehey# of system resources.  See getrlimit(2) for more details.  Each
83480c6b8aSGreg Lehey# resource limit has two values, a "soft" limit and a "hard" limit.
84480c6b8aSGreg Lehey# The soft limits can be modified during normal system operation, but
85480c6b8aSGreg Lehey# the hard limits are set at boot time.  Their default values are
86480c6b8aSGreg Lehey# in sys/<arch>/include/vmparam.h.  There are two ways to change them:
87480c6b8aSGreg Lehey#
88480c6b8aSGreg Lehey# 1.  Set the values at kernel build time.  The options below are one
89480c6b8aSGreg Lehey#     way to allow that limit to grow to 1GB.  They can be increased
90480c6b8aSGreg Lehey#     further by changing the parameters:
913236b30eSGreg Lehey#
92480c6b8aSGreg Lehey# 2.  In /boot/loader.conf, set the tunables kern.maxswzone,
93480c6b8aSGreg Lehey#     kern.maxbcache, kern.maxtsiz, kern.dfldsiz, kern.maxdsiz,
94480c6b8aSGreg Lehey#     kern.dflssiz, kern.maxssiz and kern.sgrowsiz.
95a59d364aSMatthew Dillon#
96480c6b8aSGreg Lehey# The options in /boot/loader.conf override anything in the kernel
97480c6b8aSGreg Lehey# configuration file.  See the function init_param1 in
98480c6b8aSGreg Lehey# sys/kern/subr_param.c for more details.
993236b30eSGreg Lehey#
100480c6b8aSGreg Lehey
1013236b30eSGreg Leheyoptions 	MAXDSIZ=(1024UL*1024*1024)
1023236b30eSGreg Leheyoptions 	MAXSSIZ=(128UL*1024*1024)
1033236b30eSGreg Leheyoptions 	DFLDSIZ=(1024UL*1024*1024)
1043236b30eSGreg Lehey
1053236b30eSGreg Lehey#
106a59d364aSMatthew Dillon# BLKDEV_IOSIZE sets the default block size used in user block
1073c7c6c12SMike Pritchard# device I/O.  Note that this value will be overridden by the label
108a59d364aSMatthew Dillon# when specifying a block device from a label with a non-0
1098b22cebbSMatthew Dillon# partition blocksize.  The default is PAGE_SIZE.
110a59d364aSMatthew Dillon#
111a59d364aSMatthew Dillonoptions 	BLKDEV_IOSIZE=8192
112a59d364aSMatthew Dillon
11320f71813SJohn-Mark Gurney# Options for the VM subsystem
114d4eba12bSHiten Pandya# L2 cache size (in KB) can be specified in PQ_CACHESIZE
115b1dabb26SAlexander Leidingeroptions 	PQ_CACHESIZE=512	# color for 512k cache
1169a20f99aSJohn Baldwin# Deprecated options supported for backwards compatibility
11720f71813SJohn-Mark Gurney#options 	PQ_NOOPT		# No coloring
118b1dabb26SAlexander Leidinger#options 	PQ_LARGECACHE		# color for 512k cache
119b1dabb26SAlexander Leidinger#options 	PQ_HUGECACHE		# color for 1024k cache
120b1dabb26SAlexander Leidinger#options 	PQ_MEDIUMCACHE		# color for 256k cache
121b1dabb26SAlexander Leidinger#options 	PQ_NORMALCACHE		# color for 64k cache
12220f71813SJohn-Mark Gurney
123827d623eSJordan K. Hubbard# This allows you to actually store this configuration file into
124827d623eSJordan K. Hubbard# the kernel binary itself, where it may be later read by saying:
125ffd41c98SDoug Barton#    strings -n 3 /boot/kernel/kernel | sed -n 's/^___//p' > MYKERNEL
126827d623eSJordan K. Hubbard#
127827d623eSJordan K. Hubbardoptions 	INCLUDE_CONFIG_FILE     # Include this file in kernel
128827d623eSJordan K. Hubbard
129069accaaSPoul-Henning Kampoptions 	GEOM_AES		# Don't use, use GEOM_BDE
130069accaaSPoul-Henning Kampoptions 	GEOM_APPLE		# Apple partitioning
131069accaaSPoul-Henning Kampoptions 	GEOM_BDE		# Disk encryption.
132069accaaSPoul-Henning Kampoptions 	GEOM_BSD		# BSD disklabels
1337226443dSPawel Jakub Dawidekoptions 	GEOM_CONCAT		# Disk concatenation.
13422db1e9fSPoul-Henning Kampoptions 	GEOM_FOX		# Redundant path mitigation
1357226443dSPawel Jakub Dawidekoptions 	GEOM_GATE		# Userland services.
136069accaaSPoul-Henning Kampoptions 	GEOM_GPT		# GPT partitioning
137e1237b28SPawel Jakub Dawidekoptions 	GEOM_LABEL		# Providers labelization.
138069accaaSPoul-Henning Kampoptions 	GEOM_MBR		# DOS/MBR partitioning
1398a8fbacaSPawel Jakub Dawidekoptions 	GEOM_MIRROR		# Disk mirroring.
1407dc92b13SPawel Jakub Dawidekoptions 	GEOM_NOP		# Test class.
141069accaaSPoul-Henning Kampoptions 	GEOM_PC98		# NEC PC9800 partitioning
142e81856c3SPawel Jakub Dawidekoptions 	GEOM_RAID3		# RAID3 functionality.
143560cb857SPawel Jakub Dawidekoptions 	GEOM_SHSEC		# Shared secret.
1447dc92b13SPawel Jakub Dawidekoptions 	GEOM_STRIPE		# Disk striping.
145069accaaSPoul-Henning Kampoptions 	GEOM_SUNLABEL		# Sun/Solaris partitioning
14675261008SMax Khonoptions 	GEOM_UZIP		# Read-only compressed disks
147069accaaSPoul-Henning Kampoptions 	GEOM_VOL		# Volume names from UFS superblock
1487b03a440SPoul-Henning Kamp
1498b140d57SMike Smith#
1508b140d57SMike Smith# The root device and filesystem type can be compiled in;
1518b140d57SMike Smith# this provides a fallback option if the root device cannot
1523b6c640cSCrist J. Clark# be correctly guessed by the bootstrap code, or an override if
1538b140d57SMike Smith# the RB_DFLTROOT flag (-r) is specified when booting the kernel.
1548b140d57SMike Smith#
1558b140d57SMike Smithoptions 	ROOTDEVNAME=\"ufs:da0s2e\"
1568b140d57SMike Smith
1576a8d6623SGarrett Wollman
1586a8d6623SGarrett Wollman#####################################################################
159f5d05ac3SJeff Roberson# Scheduler options:
160f5d05ac3SJeff Roberson#
161a61617edSGiorgos Keramidas# Specifying one of SCHED_4BSD or SCHED_ULE is mandatory.  These options
162f5d05ac3SJeff Roberson# select which scheduler is compiled in.
163f5d05ac3SJeff Roberson#
164f5d05ac3SJeff Roberson# SCHED_4BSD is the historical, proven, BSD scheduler.  It has a global run
165f5d05ac3SJeff Roberson# queue and no cpu affinity which makes it suboptimal for SMP.  It has very
166f5d05ac3SJeff Roberson# good interactivity and priority selection.
167f5d05ac3SJeff Roberson#
1688a0402a4SJeff Roberson# SCHED_ULE is a new scheduler that has been designed for SMP and has some
1698a0402a4SJeff Roberson# advantages for UP as well.  It is intended to replace the 4BSD scheduler
1708a0402a4SJeff Roberson# over time.
171f5d05ac3SJeff Roberson#
172b998bd92SJeff Robersonoptions 	SCHED_4BSD
173b998bd92SJeff Roberson#options 	SCHED_ULE
174f5d05ac3SJeff Roberson
175f5d05ac3SJeff Roberson#####################################################################
176477a642cSPeter Wemm# SMP OPTIONS:
177477a642cSPeter Wemm#
178477a642cSPeter Wemm# SMP enables building of a Symmetric MultiProcessor Kernel.
179477a642cSPeter Wemm
180477a642cSPeter Wemm# Mandatory:
181477a642cSPeter Wemmoptions 	SMP			# Symmetric MultiProcessor Kernel
182477a642cSPeter Wemm
1832498cf8cSJohn Baldwin# ADAPTIVE_MUTEXES changes the behavior of blocking mutexes to spin
1842498cf8cSJohn Baldwin# if the thread that currently owns the mutex is executing on another
185701f1408SScott Long# CPU.  This behaviour is enabled by default, so this option can be used
186701f1408SScott Long# to disable it.
187701f1408SScott Longoptions 	NO_ADAPTIVE_MUTEXES
1882498cf8cSJohn Baldwin
189a9abdce4SRobert Watson# ADAPTIVE_GIANT causes the Giant lock to also be made adaptive when
190a9abdce4SRobert Watson# running without NO_ADAPTIVE_MUTEXES.  Normally, because Giant is assumed
191a9abdce4SRobert Watson# to be held for extended periods, contention on Giant will cause a thread
192a9abdce4SRobert Watson# to sleep rather than spinning.
193a9abdce4SRobert Watsonoptions 	ADAPTIVE_GIANT
194a9abdce4SRobert Watson
195ad27c4c7SJohn Baldwin# MUTEX_NOINLINE forces mutex operations to call functions to perform each
196ad27c4c7SJohn Baldwin# operation rather than inlining the simple cases.  This can be used to
197ad27c4c7SJohn Baldwin# shrink the size of the kernel text segment.  Note that this behavior is
198ad27c4c7SJohn Baldwin# already implied by the INVARIANT_SUPPORT, INVARIANTS, MUTEX_PROFILING,
199ad27c4c7SJohn Baldwin# and WITNESS options.
200ad27c4c7SJohn Baldwinoptions 	MUTEX_NOINLINE
201ad27c4c7SJohn Baldwin
2024f02f1d5SJohn Baldwin# MUTEX_WAKE_ALL changes the mutex unlock algorithm to wake all waiters
2034f02f1d5SJohn Baldwin# when a contested mutex is released rather than just awaking the highest
2044f02f1d5SJohn Baldwin# priority waiter.
2054f02f1d5SJohn Baldwinoptions 	MUTEX_WAKE_ALL
2064f02f1d5SJohn Baldwin
2071fe4c660SJohn Baldwin# SMP Debugging Options:
2081fe4c660SJohn Baldwin#
2099923b511SScott Long# PREEMPTION allows the threads that are in the kernel to be preempted
2109923b511SScott Long#	  by higher priority threads.  It helps with interactivity and
2119923b511SScott Long#	  allows interrupt threads to run sooner rather than waiting.
2129923b511SScott Long#	  WARNING! Only tested on alpha, amd64, and i386.
2130c0b25aeSJohn Baldwin# FULL_PREEMPTION instructs the kernel to preempt non-realtime kernel
2148c5923d9SCeri Davies#	  threads.  Its sole use is to expose race conditions and other
2150c0b25aeSJohn Baldwin#	  bugs during development.  Enabling this option will reduce
2160c0b25aeSJohn Baldwin#	  performance and increase the frequency of kernel panics by
2170c0b25aeSJohn Baldwin#	  design.  If you aren't sure that you need it then you don't.
2189923b511SScott Long#	  Relies on the PREEMPTION option.  DON'T TURN THIS ON.
219ab4f2c18SJohn Baldwin# MUTEX_DEBUG enables various extra assertions in the mutex code.
220ef0ebfc3SJohn Baldwin# SLEEPQUEUE_PROFILING enables rudimentary profiling of the hash table
221ef0ebfc3SJohn Baldwin#	  used to hold active sleep queues.
222ef0ebfc3SJohn Baldwin# TURNSTILE_PROFILING enables rudimentary profiling of the hash table
223ef0ebfc3SJohn Baldwin#	  used to hold active lock queues.
224aa4019efSRobert Watson# WITNESS enables the witness code which detects deadlocks and cycles
2251fe4c660SJohn Baldwin#         during locking operations.
226e2ee2173SMarcel Moolenaar# WITNESS_KDB causes the witness code to drop into the kernel debugger if
2273c7c6c12SMike Pritchard#	  a lock hierarchy violation occurs or if locks are held when going to
228660d1e3aSJohn Baldwin#	  sleep.
229660d1e3aSJohn Baldwin# WITNESS_SKIPSPIN disables the witness checks on spin mutexes.
2309923b511SScott Longoptions 	PREEMPTION
2310c0b25aeSJohn Baldwinoptions 	FULL_PREEMPTION
232ab4f2c18SJohn Baldwinoptions 	MUTEX_DEBUG
2331fe4c660SJohn Baldwinoptions 	WITNESS
234e2ee2173SMarcel Moolenaaroptions 	WITNESS_KDB
235660d1e3aSJohn Baldwinoptions 	WITNESS_SKIPSPIN
2361fe4c660SJohn Baldwin
237dc171447SDag-Erling Smørgrav# MUTEX_PROFILING - Profiling mutual exclusion locks (mutexes).  See
238f8f8803bSBruce Evans# MUTEX_PROFILING(9) for details.
2394db0d7f1SDag-Erling Smørgravoptions 	MUTEX_PROFILING
24000096801SJohn-Mark Gurney# Set the number of buffers and the hash size.  The hash size MUST be larger
24100096801SJohn-Mark Gurney# than the number of buffers.  Hash size should be prime.
24200096801SJohn-Mark Gurneyoptions 	MPROF_BUFFERS="1536"
24300096801SJohn-Mark Gurneyoptions 	MPROF_HASH_SIZE="1543"
2444db0d7f1SDag-Erling Smørgrav
245ef0ebfc3SJohn Baldwin# Profiling for internal hash tables.
246ef0ebfc3SJohn Baldwinoptions 	SLEEPQUEUE_PROFILING
247ef0ebfc3SJohn Baldwinoptions 	TURNSTILE_PROFILING
248ef0ebfc3SJohn Baldwin
249477a642cSPeter Wemm
250477a642cSPeter Wemm#####################################################################
2516a8d6623SGarrett Wollman# COMPATIBILITY OPTIONS
252690f540cSAndrey A. Chernov
2536a8d6623SGarrett Wollman#
2546a8d6623SGarrett Wollman# Implement system calls compatible with 4.3BSD and older versions of
25556c7a48cSJordan K. Hubbard# FreeBSD.  You probably do NOT want to remove this as much current code
2567bbf05a2SJuli Mallett# still relies on the 4.3 emulation.  Note that some architectures that
2577bbf05a2SJuli Mallett# are supported by FreeBSD do not include support for certain important
2587bbf05a2SJuli Mallett# aspects of this compatibility option, namely those related to the
2597bbf05a2SJuli Mallett# signal delivery mechanism.
2606a8d6623SGarrett Wollman#
2615895e3c8SPeter Wemmoptions 	COMPAT_43
2626a8d6623SGarrett Wollman
263f0eb293eSAlfred Perlstein# Enable FreeBSD4 compatibility syscalls
264f0eb293eSAlfred Perlsteinoptions 	COMPAT_FREEBSD4
265f0eb293eSAlfred Perlstein
2666a8d6623SGarrett Wollman#
2676a8d6623SGarrett Wollman# These three options provide support for System V Interface
2686a8d6623SGarrett Wollman# Definition-style interprocess communication, in the form of shared
2696a8d6623SGarrett Wollman# memory, semaphores, and message queues, respectively.
2706a8d6623SGarrett Wollman#
2716a8d6623SGarrett Wollmanoptions 	SYSVSHM
2726a8d6623SGarrett Wollmanoptions 	SYSVSEM
2736a8d6623SGarrett Wollmanoptions 	SYSVMSG
2746a8d6623SGarrett Wollman
2756a8d6623SGarrett Wollman
2766a8d6623SGarrett Wollman#####################################################################
2776a8d6623SGarrett Wollman# DEBUGGING OPTIONS
2786a8d6623SGarrett Wollman
2796a8d6623SGarrett Wollman#
280e2ee2173SMarcel Moolenaar# Compile with kernel debugger related code.
2816a8d6623SGarrett Wollman#
282e2ee2173SMarcel Moolenaaroptions 	KDB
283b5d89ca8SBruce Evans
284b5d89ca8SBruce Evans#
285e2ee2173SMarcel Moolenaar# Print a stack trace of the current thread on the console for a panic.
2867085e708SBruce Evans#
287e2ee2173SMarcel Moolenaaroptions 	KDB_TRACE
288e2ee2173SMarcel Moolenaar
289e2ee2173SMarcel Moolenaar#
290e2ee2173SMarcel Moolenaar# Don't enter the debugger for a panic. Intended for unattended operation
291e2ee2173SMarcel Moolenaar# where you may want to enter the debugger from the console, but still want
292e2ee2173SMarcel Moolenaar# the machine to recover from a panic.
293e2ee2173SMarcel Moolenaar#
294e2ee2173SMarcel Moolenaaroptions 	KDB_UNATTENDED
295e2ee2173SMarcel Moolenaar
296e2ee2173SMarcel Moolenaar#
297e2ee2173SMarcel Moolenaar# Enable the ddb debugger backend.
298e2ee2173SMarcel Moolenaar#
299e2ee2173SMarcel Moolenaaroptions 	DDB
3007085e708SBruce Evans
3017085e708SBruce Evans#
302bfdd261eSBruce Evans# Print the numerical value of symbols in addition to the symbolic
303bfdd261eSBruce Evans# representation.
304bfdd261eSBruce Evans#
305bfdd261eSBruce Evansoptions 	DDB_NUMSYM
306bfdd261eSBruce Evans
307bfdd261eSBruce Evans#
308e2ee2173SMarcel Moolenaar# Enable the remote gdb debugger backend.
3090be15decSJohn Baldwin#
310e2ee2173SMarcel Moolenaaroptions 	GDB
311562d05dfSPaul Traina
312562d05dfSPaul Traina#
313df970488SRobert Watson# SYSCTL_DEBUG enables a 'sysctl' debug tree that can be used to dump the
314df970488SRobert Watson# contents of the registered sysctl nodes on the console.  It is disabled by
315df970488SRobert Watson# default because it generates excessively verbose consol output that can
316df970488SRobert Watson# interfere with serial console operation.
317df970488SRobert Watson#
318df970488SRobert Watsonoptions 	SYSCTL_DEBUG
319df970488SRobert Watson
320df970488SRobert Watson#
321e4eb384bSBosko Milekic# DEBUG_MEMGUARD builds and enables memguard(9), a replacement allocator
322e4eb384bSBosko Milekic# for the kernel used to detect modify-after-free scenarios.  See the
323e4eb384bSBosko Milekic# memguard(9) man page for more information on usage.
324e4eb384bSBosko Milekic#
325e4eb384bSBosko Milekicoptions 	DEBUG_MEMGUARD
326e4eb384bSBosko Milekic
327e4eb384bSBosko Milekic#
328ea3fc8e4SJohn Baldwin# KTRACE enables the system-call tracing facility ktrace(2).  To be more
329ea3fc8e4SJohn Baldwin# SMP-friendly, KTRACE uses a worker thread to process most trace events
330ea3fc8e4SJohn Baldwin# asynchronously to the thread generating the event.  This requires a
331ea3fc8e4SJohn Baldwin# pre-allocated store of objects representing trace events.  The
332ea3fc8e4SJohn Baldwin# KTRACE_REQUEST_POOL option specifies the initial size of this store.
333ea3fc8e4SJohn Baldwin# The size of the pool can be adjusted both at boottime and runtime via
334ea3fc8e4SJohn Baldwin# the kern.ktrace_request_pool tunable and sysctl.
3356a8d6623SGarrett Wollman#
3362365e64fSRodney W. Grimesoptions 	KTRACE			#kernel tracing
337ea3fc8e4SJohn Baldwinoptions 	KTRACE_REQUEST_POOL=101
33821c64a07SAndrey A. Chernov
3396a8d6623SGarrett Wollman#
340c508c1b6SJohn Baldwin# KTR is a kernel tracing mechanism imported from BSD/OS.  Currently it
341c508c1b6SJohn Baldwin# has no userland interface aside from a few sysctl's.  It is enabled with
3420f8870a2SJohn Baldwin# the KTR option.  KTR_ENTRIES defines the number of entries in the circular
3430f8870a2SJohn Baldwin# trace buffer.  KTR_COMPILE defines the mask of events to compile into the
3440f8870a2SJohn Baldwin# kernel as defined by the KTR_* constants in <sys/ktr.h>.  KTR_MASK defines the
345c508c1b6SJohn Baldwin# initial value of the ktr_mask variable which determines at runtime what
346c508c1b6SJohn Baldwin# events to trace.  KTR_CPUMASK determines which CPU's log events, with
347d902baa4SJohn Baldwin# bit X corresponding to cpu X.  KTR_VERBOSE enables dumping of KTR events
348d902baa4SJohn Baldwin# to the console by default.  This functionality can be toggled via the
349d902baa4SJohn Baldwin# debug.ktr_verbose sysctl and defaults to off if KTR_VERBOSE is not defined.
350c508c1b6SJohn Baldwin#
351c508c1b6SJohn Baldwinoptions 	KTR
352c508c1b6SJohn Baldwinoptions 	KTR_ENTRIES=1024
35325388b6cSBruce Evansoptions 	KTR_COMPILE=(KTR_INTR|KTR_PROC)
354a9672a81SJohn Baldwinoptions 	KTR_MASK=KTR_INTR
355c508c1b6SJohn Baldwinoptions 	KTR_CPUMASK=0x3
356d902baa4SJohn Baldwinoptions 	KTR_VERBOSE
357c508c1b6SJohn Baldwin
358c508c1b6SJohn Baldwin#
359453ffeefSRobert Watson# ALQ(9) is a facilty for the asynchronous queuing of records from the kernel
360453ffeefSRobert Watson# to a vnode, and is employed by services such as KTR(4) to produce trace
361453ffeefSRobert Watson# files based on a kernel event stream.  Records are written asynchronously
362453ffeefSRobert Watson# in a worker thread.
363453ffeefSRobert Watson#
364453ffeefSRobert Watsonoptions 	ALQ
365453ffeefSRobert Watsonoptions 	KTR_ALQ
366453ffeefSRobert Watson
367453ffeefSRobert Watson#
3685526d2d9SEivind Eklund# The INVARIANTS option is used in a number of source files to enable
3696a8d6623SGarrett Wollman# extra sanity checking of internal structures.  This support is not
3706a8d6623SGarrett Wollman# enabled by default because of the extra time it would take to check
3716a8d6623SGarrett Wollman# for these conditions, which can only occur as a result of
3726a8d6623SGarrett Wollman# programming errors.
3736a8d6623SGarrett Wollman#
3745526d2d9SEivind Eklundoptions 	INVARIANTS
3755526d2d9SEivind Eklund
3765526d2d9SEivind Eklund#
37734b15f2aSJohn Baldwin# The INVARIANT_SUPPORT option makes us compile in support for
37834b15f2aSJohn Baldwin# verifying some of the internal structures.  It is a prerequisite for
37934b15f2aSJohn Baldwin# 'INVARIANTS', as enabling 'INVARIANTS' will make these functions be
38034b15f2aSJohn Baldwin# called.  The intent is that you can set 'INVARIANTS' for single
38134b15f2aSJohn Baldwin# source files (by changing the source file or specifying it on the
38234b15f2aSJohn Baldwin# command line) if you have 'INVARIANT_SUPPORT' enabled.  Also, if you
38334b15f2aSJohn Baldwin# wish to build a kernel module with 'INVARIANTS', then adding
38434b15f2aSJohn Baldwin# 'INVARIANT_SUPPORT' to your kernel will provide all the necessary
38534b15f2aSJohn Baldwin# infrastructure without the added overhead.
38634b15f2aSJohn Baldwin#
38734b15f2aSJohn Baldwinoptions 	INVARIANT_SUPPORT
38834b15f2aSJohn Baldwin
38934b15f2aSJohn Baldwin#
3905526d2d9SEivind Eklund# The DIAGNOSTIC option is used to enable extra debugging information
3915526d2d9SEivind Eklund# from some parts of the kernel.  As this makes everything more noisy,
3925526d2d9SEivind Eklund# it is disabled by default.
3935526d2d9SEivind Eklund#
3940dc7d907SPoul-Henning Kampoptions 	DIAGNOSTIC
395da59a31cSDavid Greenman
3960dd1eea1SJordan K. Hubbard#
3970b5438c6SRobert Watson# REGRESSION causes optional kernel interfaces necessary only for regression
3983c7c6c12SMike Pritchard# testing to be enabled.  These interfaces may constitute security risks
3990b5438c6SRobert Watson# when enabled, as they permit processes to easily modify aspects of the
4000b5438c6SRobert Watson# run-time environment to reproduce unlikely or unusual (possibly normally
4010b5438c6SRobert Watson# impossible) scenarios.
4020b5438c6SRobert Watson#
4030b5438c6SRobert Watsonoptions 	REGRESSION
4040b5438c6SRobert Watson
4050b5438c6SRobert Watson#
4061432aa0cSJohn Baldwin# RESTARTABLE_PANICS allows one to continue from a panic as if it were
4071432aa0cSJohn Baldwin# a call to the debugger via the Debugger() function instead.  It is only
4081432aa0cSJohn Baldwin# useful if a kernel debugger is present.  To restart from a panic, reset
4091432aa0cSJohn Baldwin# the panicstr variable to NULL and continue execution.  This option is
4101432aa0cSJohn Baldwin# for development use only and should NOT be used in production systems
4111432aa0cSJohn Baldwin# to "workaround" a panic.
4121432aa0cSJohn Baldwin#
4139d60f0cbSJohn Baldwin#options 	RESTARTABLE_PANICS
4141432aa0cSJohn Baldwin
4151432aa0cSJohn Baldwin#
416346ebe51SEivind Eklund# This option let some drivers co-exist that can't co-exist in a running
417346ebe51SEivind Eklund# system.  This is used to be able to compile all kernel code in one go for
418346ebe51SEivind Eklund# quality assurance purposes (like this file, which the option takes it name
419346ebe51SEivind Eklund# from.)
420346ebe51SEivind Eklund#
421346ebe51SEivind Eklundoptions 	COMPILING_LINT
422346ebe51SEivind Eklund
4236a8d6623SGarrett Wollman
4246a8d6623SGarrett Wollman#####################################################################
425d47cce3eSMarcel Moolenaar# PERFORMANCE MONITORING OPTIONS
426d47cce3eSMarcel Moolenaar
427d47cce3eSMarcel Moolenaar#
428d47cce3eSMarcel Moolenaar# The hwpmc driver that allows the use of in-CPU performance monitoring
429d47cce3eSMarcel Moolenaar# counters for performance monitoring.  The base kernel needs to configured
430d47cce3eSMarcel Moolenaar# with the 'options' line, while the hwpmc device can be either compiled
431d47cce3eSMarcel Moolenaar# in or loaded as a loadable kernel module.
432d47cce3eSMarcel Moolenaar#
433d47cce3eSMarcel Moolenaardevice  	hwpmc			# Driver (also a loadable module)
434d47cce3eSMarcel Moolenaaroptions 	HWPMC_HOOKS		# Other necessary kernel hooks
435d47cce3eSMarcel Moolenaar
436d47cce3eSMarcel Moolenaar
437d47cce3eSMarcel Moolenaar#####################################################################
4386a8d6623SGarrett Wollman# NETWORKING OPTIONS
43970c0b54cSAndrey A. Chernov
4406a8d6623SGarrett Wollman#
4416a8d6623SGarrett Wollman# Protocol families:
4426a8d6623SGarrett Wollman#  Only the INET (Internet) family is officially supported in FreeBSD.
4436a8d6623SGarrett Wollman#
4446a8d6623SGarrett Wollmanoptions 	INET			#Internet communications protocols
44551f4c152SYoshinobu Inoueoptions 	INET6			#IPv6 communications protocols
4466a800098SYoshinobu Inoueoptions 	IPSEC			#IP security
4476a800098SYoshinobu Inoueoptions 	IPSEC_ESP		#IP security (crypto; define w/ IPSEC)
4486a800098SYoshinobu Inoueoptions 	IPSEC_DEBUG		#debug for IP security
44914dd6717SSam Leffler#
45014dd6717SSam Leffler# Set IPSEC_FILTERGIF to force packets coming through a gif tunnel
45114dd6717SSam Leffler# to be processed by any configured packet filtering (ipfw, ipf).
45214dd6717SSam Leffler# The default is that packets coming from a tunnel are _not_ processed;
45314dd6717SSam Leffler# they are assumed trusted.
45414dd6717SSam Leffler#
455fa43ee09SBruce M Simpson# IPSEC history is preserved for such packets, and can be filtered
456fa43ee09SBruce M Simpson# using ipfw(8)'s 'ipsec' keyword, when this option is enabled.
45714dd6717SSam Leffler#
45814dd6717SSam Leffler#options 	IPSEC_FILTERGIF		#filter ipsec packets from a tunnel
459f73bbaf2SDavid Greenman
460b9234fafSSam Leffler#options 	FAST_IPSEC		#new IPsec (cannot define w/ IPSEC)
461b9234fafSSam Leffler
462cc6a66f2SJulian Elischeroptions 	IPX			#IPX/SPX communications protocols
463cc6a66f2SJulian Elischeroptions 	IPXIP			#IPX in IP encapsulation (not available)
464cc6a66f2SJulian Elischer
4657665f445SRobert Watsonoptions 	NCP			#NetWare Core protocol
466e83e2322SBoris Popov
46734b5fca7SJulian Elischeroptions 	NETATALK		#Appletalk communications protocols
4688b6f5e65SJeroen Ruigrok van der Wervenoptions 	NETATALKDEBUG		#Appletalk debugging
46934b5fca7SJulian Elischer
470daaa73b5SRobert Watson#
471daaa73b5SRobert Watson# SMB/CIFS requester
472daaa73b5SRobert Watson# NETSMB enables support for SMB protocol, it requires LIBMCHAIN and LIBICONV
473daaa73b5SRobert Watson# options.
474daaa73b5SRobert Watson# NETSMBCRYPTO enables support for encrypted passwords.
475daaa73b5SRobert Watsonoptions 	NETSMB			#SMB/CIFS requester
476daaa73b5SRobert Watsonoptions 	NETSMBCRYPTO		#encrypted password support for SMB
477daaa73b5SRobert Watson
478d8589bd5SBoris Popov# mchain library. It can be either loaded as KLD or compiled into kernel
479d8589bd5SBoris Popovoptions 	LIBMCHAIN
480d8589bd5SBoris Popov
4816cd047a0SGleb Smirnoff# libalias library, performing NAT
4826cd047a0SGleb Smirnoffoptions		LIBALIAS
4836cd047a0SGleb Smirnoff
48402b199f1SMax Laier# altq(9). Enable the base part of the hooks with the ALTQ option.
48502b199f1SMax Laier# Individual disciplines must be built into the base system and can not be
48602b199f1SMax Laier# loaded as modules at this point. In order to build a SMP kernel you must
48702b199f1SMax Laier# also have the ALTQ_NOPCC option.
48802b199f1SMax Laieroptions 	ALTQ
48902b199f1SMax Laieroptions 	ALTQ_CBQ	# Class Bases Queueing
490c7219167SMax Laieroptions 	ALTQ_RED	# Random Early Detection
49102b199f1SMax Laieroptions 	ALTQ_RIO	# RED In/Out
49202b199f1SMax Laieroptions 	ALTQ_HFSC	# Hierarchical Packet Scheduler
49302b199f1SMax Laieroptions 	ALTQ_CDNR	# Traffic conditioner
4943c7c6c12SMike Pritchardoptions 	ALTQ_PRIQ	# Priority Queueing
49502b199f1SMax Laieroptions 	ALTQ_NOPCC	# Required for SMP build
49602b199f1SMax Laieroptions 	ALTQ_DEBUG
49702b199f1SMax Laier
4984cf49a43SJulian Elischer# netgraph(4). Enable the base netgraph code with the NETGRAPH option.
4994cf49a43SJulian Elischer# Individual node types can be enabled with the corresponding option
5004cf49a43SJulian Elischer# listed below; however, this is not strictly necessary as netgraph
5014cf49a43SJulian Elischer# will automatically load the corresponding KLD module if the node type
50292a3e552SArchie Cobbs# is not already compiled into the kernel. Each type below has a
50392a3e552SArchie Cobbs# corresponding man page, e.g., ng_async(8).
5044cf49a43SJulian Elischeroptions 	NETGRAPH		#netgraph(4) system
5054cf49a43SJulian Elischeroptions 	NETGRAPH_ASYNC
506bde778e9SBenno Riceoptions 	NETGRAPH_ATMLLC
507b84b10f9SMaksim Yevmenkinoptions 	NETGRAPH_ATM_ATMPIF
508b84b10f9SMaksim Yevmenkinoptions 	NETGRAPH_BLUETOOTH		# ng_bluetooth(4)
509b84b10f9SMaksim Yevmenkinoptions 	NETGRAPH_BLUETOOTH_BT3C		# ng_bt3c(4)
510b84b10f9SMaksim Yevmenkinoptions 	NETGRAPH_BLUETOOTH_H4		# ng_h4(4)
511b84b10f9SMaksim Yevmenkinoptions 	NETGRAPH_BLUETOOTH_HCI		# ng_hci(4)
512b84b10f9SMaksim Yevmenkinoptions 	NETGRAPH_BLUETOOTH_L2CAP	# ng_l2cap(4)
513b84b10f9SMaksim Yevmenkinoptions 	NETGRAPH_BLUETOOTH_SOCKET	# ng_btsocket(4)
514b84b10f9SMaksim Yevmenkinoptions 	NETGRAPH_BLUETOOTH_UBT		# ng_ubt(4)
515b84b10f9SMaksim Yevmenkinoptions 	NETGRAPH_BLUETOOTH_UBTBCMFW	# ubtbcmfw(4)
51692a3e552SArchie Cobbsoptions 	NETGRAPH_BPF
517901fadf7SArchie Cobbsoptions 	NETGRAPH_BRIDGE
5184cf49a43SJulian Elischeroptions 	NETGRAPH_CISCO
51931578ac8SGleb Smirnoffoptions 	NETGRAPH_DEVICE
5204cf49a43SJulian Elischeroptions 	NETGRAPH_ECHO
5219d564133SRobert Watsonoptions 	NETGRAPH_EIFACE
52246aa8b9bSArchie Cobbsoptions 	NETGRAPH_ETHER
523d07af9d9SRobert Watsonoptions 	NETGRAPH_FEC
5244cf49a43SJulian Elischeroptions 	NETGRAPH_FRAME_RELAY
52537379158SBrooks Davisoptions 	NETGRAPH_GIF
52637379158SBrooks Davisoptions 	NETGRAPH_GIF_DEMUX
5274cf49a43SJulian Elischeroptions 	NETGRAPH_HOLE
5284cf49a43SJulian Elischeroptions 	NETGRAPH_IFACE
52937379158SBrooks Davisoptions 	NETGRAPH_IP_INPUT
530f2a7ef4eSGleb Smirnoffoptions 	NETGRAPH_IPFW
53148e94174SArchie Cobbsoptions 	NETGRAPH_KSOCKET
532901fadf7SArchie Cobbsoptions 	NETGRAPH_L2TP
5334cf49a43SJulian Elischeroptions 	NETGRAPH_LMI
534a2b408adSArchie Cobbs# MPPC compression requires proprietary files (not included)
535a2b408adSArchie Cobbs#options 	NETGRAPH_MPPC_COMPRESSION
536a2b408adSArchie Cobbsoptions 	NETGRAPH_MPPC_ENCRYPTION
537cec50deaSGleb Smirnoffoptions 	NETGRAPH_NETFLOW
5386cd047a0SGleb Smirnoffoptions		NETGRAPH_NAT
5397d7a5b89SArchie Cobbsoptions 	NETGRAPH_ONE2MANY
540b0801bacSArchie Cobbsoptions 	NETGRAPH_PPP
541b0801bacSArchie Cobbsoptions 	NETGRAPH_PPPOE
542add85a1dSArchie Cobbsoptions 	NETGRAPH_PPTPGRE
5434cf49a43SJulian Elischeroptions 	NETGRAPH_RFC1490
544b0801bacSArchie Cobbsoptions 	NETGRAPH_SOCKET
5454d60fee2SBrooks Davisoptions 	NETGRAPH_SPLIT
5460a6818e2SRoman Kurakinoptions 	NETGRAPH_SPPP
5474cf49a43SJulian Elischeroptions 	NETGRAPH_TEE
5484cf49a43SJulian Elischeroptions 	NETGRAPH_TTY
5494cf49a43SJulian Elischeroptions 	NETGRAPH_UI
550b58a8a3bSJulian Elischeroptions 	NETGRAPH_VJC
551666ea1b6SMaksim Yevmenkin
55202152e8fSHartmut Brandt# NgATM - Netgraph ATM
55302152e8fSHartmut Brandtoptions 	NGATM_ATM
554027ebd2fSHartmut Brandtoptions 	NGATM_ATMBASE
555027ebd2fSHartmut Brandtoptions 	NGATM_SSCOP
556027ebd2fSHartmut Brandtoptions 	NGATM_SSCFU
557ed91f9a5SHartmut Brandtoptions 	NGATM_UNI
558a7e22394SHartmut Brandtoptions 	NGATM_CCATM
55902152e8fSHartmut Brandt
560c9953c3bSPeter Wemmdevice		mn	# Munich32x/Falc54 Nx64kbit/sec cards.
5613cf4d0bfSPoul-Henning Kamp
5626a8d6623SGarrett Wollman#
5636a8d6623SGarrett Wollman# Network interfaces:
564f71c01ccSPeter Wemm#  The `loop' device is MANDATORY when networking is enabled.
565f71c01ccSPeter Wemm#  The `ether' device provides generic code to handle
5669d5abbddSJens Schweikhardt#  Ethernets; it is MANDATORY when an Ethernet device driver is
567722012ccSJulian Elischer#  configured or token-ring is enabled.
568fc67901fSYaroslav Tykhiy#  The `vlan' device implements the VLAN tagging of Ethernet frames
569fc67901fSYaroslav Tykhiy#  according to IEEE 802.1Q.  It requires `device miibus'.
57057a42501SGarrett Wollman#  The `wlan' device provides generic code to support 802.11
57167e4db77SSam Leffler#  drivers, including host AP mode; it is MANDATORY for the wi,
57267e4db77SSam Leffler#  ath, and awi drivers and will eventually be required by all 802.11 drivers.
57367e4db77SSam Leffler#  The `wlan_wep', `wlan_tkip', and `wlan_ccmp' devices provide
57467e4db77SSam Leffler#  support for WEP, TKIP, and AES-CCMP crypto protocols optionally
57567e4db77SSam Leffler#  used with 802.11 devices that depend on the `wlan' module.
57667e4db77SSam Leffler#  The `wlan_xauth' device provides support for external (i.e. user-mode)
57767e4db77SSam Leffler#  authenticators for use with 802.11 drivers that use the `wlan'
57834341a71SJohn Baldwin#  module and support 802.1x and/or WPA security protocols.
57967e4db77SSam Leffler#  The `wlan_acl' device provides a MAC-based access control mechanism
58067e4db77SSam Leffler#  for use with 802.11 drivers operating in ap mode and using the
58167e4db77SSam Leffler#  `wlan' module.
5821a02faf6SGarrett Wollman#  The `fddi' device provides generic code to support FDDI.
583eda6ecb2SMax Khon#  The `arcnet' device provides generic code to support Arcnet.
584f71c01ccSPeter Wemm#  The `sppp' device serves a similar role for certain types
585e7c234a1SPeter Wemm#  of synchronous PPP links (like `cx', `ar').
586f71c01ccSPeter Wemm#  The `sl' device implements the Serial Line IP (SLIP) service.
587f71c01ccSPeter Wemm#  The `ppp' device implements the Point-to-Point Protocol.
588f71c01ccSPeter Wemm#  The `bpf' device enables the Berkeley Packet Filter.  Be
589d29895dcSGarrett Wollman#  aware of the legal and administrative consequences of enabling this
590d29895dcSGarrett Wollman#  option.  The number of devices determines the maximum number of
591991f5121SMurray Stokely#  simultaneous BPF clients programs runnable.  DHCP requires bpf.
592f71c01ccSPeter Wemm#  The `disc' device implements a minimal network interface,
59359d8d13fSGarrett Wollman#  which throws away all packets sent and never receives any.  It is
5941a02faf6SGarrett Wollman#  included for testing purposes.  This shows up as the `ds' interface.
5954c12b435SNick Sayer#  The `tap' device is a pty-like virtual Ethernet interface
596f71c01ccSPeter Wemm#  The `tun' device implements (user-)ppp and nos-tun
597f71c01ccSPeter Wemm#  The `gif' device implements IPv6 over IP4 tunneling,
598cfa1ca9dSYoshinobu Inoue#  IPv4 over IPv6 tunneling, IPv4 over IPv4 tunneling and
599cfa1ca9dSYoshinobu Inoue#  IPv6 over IPv6 tunneling.
600f367e2f2SMaxim Sobolev#  The `gre' device implements two types of IP4 over IP4 tunneling:
601f367e2f2SMaxim Sobolev#  GRE and MOBILE, as specified in the RFC1701 and RFC2004.
602f57fc21cSJeroen Ruigrok van der Werven#  The XBONEHACK option allows the same pair of addresses to be configured on
603f57fc21cSJeroen Ruigrok van der Werven#  multiple gif interfaces.
604f71c01ccSPeter Wemm#  The `faith' device captures packets sent to it and diverts them
605cfa1ca9dSYoshinobu Inoue#  to the IPv4/IPv6 translation daemon.
606d5015639SMunechika SUMIKAWA#  The `stf' device implements 6to4 encapsulation.
607f71c01ccSPeter Wemm#  The `ef' device provides support for multiple ethernet frame types
6085d94d71cSBoris Popov#  specified via ETHER_* options. See ef(4) for details.
6096a8d6623SGarrett Wollman#
6108d69c48bSMax Laier# The pf packet filter consists of three devices:
6118d69c48bSMax Laier#  The `pf' device provides /dev/pf and the firewall code itself.
6128d69c48bSMax Laier#  The `pflog' device provides the pflog0 interface which logs packets.
6138d69c48bSMax Laier#  The `pfsync' device provides the pfsync0 interface used for
6148d69c48bSMax Laier#   synchronization of firewall state tables (over the net).
6158d69c48bSMax Laier#
616829b5d55SPeter Wemm# The PPP_BSDCOMP option enables support for compress(1) style entire
617829b5d55SPeter Wemm# packet compression, the PPP_DEFLATE is for zlib/gzip style compression.
618829b5d55SPeter Wemm# PPP_FILTER enables code for filtering the ppp data stream and selecting
6196b5ca0d8SDag-Erling Smørgrav# events for resetting the demand dial activity timer - requires bpf.
620829b5d55SPeter Wemm# See pppd(8) for more details.
62189327d27SPeter Wemm#
622f71c01ccSPeter Wemmdevice		ether			#Generic Ethernet
6231270082cSYaroslav Tykhiydevice		vlan			#VLAN support (needs miibus)
624be7b82cdSSam Lefflerdevice		wlan			#802.11 support
62567e4db77SSam Lefflerdevice		wlan_wep		#802.11 WEP support
62667e4db77SSam Lefflerdevice		wlan_ccmp		#802.11 CCMP support
62767e4db77SSam Lefflerdevice		wlan_tkip		#802.11 TKIP support
62867e4db77SSam Lefflerdevice		wlan_xauth		#802.11 external authenticator support
62967e4db77SSam Lefflerdevice		wlan_acl		#802.11 MAC ACL support
630f71c01ccSPeter Wemmdevice		token			#Generic TokenRing
631f71c01ccSPeter Wemmdevice		fddi			#Generic FDDI
632eda6ecb2SMax Khondevice		arcnet			#Generic Arcnet
633f71c01ccSPeter Wemmdevice		sppp			#Generic Synchronous PPP
63409d225d8SBrooks Davisdevice		loop			#Network loopback device
635f71c01ccSPeter Wemmdevice		bpf			#Berkeley packet filter
636f71c01ccSPeter Wemmdevice		disc			#Discard device (ds0, ds1, etc)
6374c12b435SNick Sayerdevice		tap			#Virtual Ethernet driver
638f71c01ccSPeter Wemmdevice		tun			#Tunnel driver (ppp(8), nos-tun(8))
639f71c01ccSPeter Wemmdevice		sl			#Serial Line IP
640f367e2f2SMaxim Sobolevdevice		gre			#IP over IP tunneling
6418d69c48bSMax Laierdevice		pf			#PF OpenBSD packet-filter firewall
6428d69c48bSMax Laierdevice		pflog			#logging support interface for PF
6438d69c48bSMax Laierdevice		pfsync			#synchronization interface for PF
644c73b559bSGleb Smirnoffdevice		carp			#Common Address Redundancy Protocol
64505c872adSBrooks Davisdevice		ppp			#Point-to-point protocol
64689327d27SPeter Wemmoptions 	PPP_BSDCOMP		#PPP BSD-compress support
64789327d27SPeter Wemmoptions 	PPP_DEFLATE		#PPP zlib/deflate/gzip support
6486b5ca0d8SDag-Erling Smørgravoptions 	PPP_FILTER		#enable bpf filtering (needs bpf)
649d29895dcSGarrett Wollman
650f71c01ccSPeter Wemmdevice		ef			# Multiple ethernet frames support
6515d94d71cSBoris Popovoptions 	ETHER_II		# enable Ethernet_II frame
6525d94d71cSBoris Popovoptions 	ETHER_8023		# enable Ethernet_802.3 (Novell) frame
6535d94d71cSBoris Popovoptions 	ETHER_8022		# enable Ethernet_802.2 frame
6545d94d71cSBoris Popovoptions 	ETHER_SNAP		# enable Ethernet_802.2/SNAP frame
6555d94d71cSBoris Popov
656cfa1ca9dSYoshinobu Inoue# for IPv6
6579753d2f8SBrooks Davisdevice		gif			#IPv6 and IPv4 tunneling
658f57fc21cSJeroen Ruigrok van der Wervenoptions 	XBONEHACK
6592f653328SBrooks Davisdevice		faith			#for IPv6 and IPv4 translation
660d5015639SMunechika SUMIKAWAdevice		stf			#6to4 IPv6 over IPv4 encapsulation
661cfa1ca9dSYoshinobu Inoue
6626a8d6623SGarrett Wollman#
6636a8d6623SGarrett Wollman# Internet family options:
6646a8d6623SGarrett Wollman#
6656a8d6623SGarrett Wollman# MROUTING enables the kernel multicast packet forwarder, which works
6666a8d6623SGarrett Wollman# with mrouted(8).
6676a8d6623SGarrett Wollman#
668e0f688baSJeffrey Hsu# PIM enables Protocol Independent Multicast in the kernel.
669e0f688baSJeffrey Hsu# Requires MROUTING enabled.
670e0f688baSJeffrey Hsu#
671d29895dcSGarrett Wollman# IPFIREWALL enables support for IP firewall construction, in
672ff6f025aSAlexander Langer# conjunction with the `ipfw' program.  IPFIREWALL_VERBOSE sends
673ff6f025aSAlexander Langer# logged packets to the system logger.  IPFIREWALL_VERBOSE_LIMIT
674ff6f025aSAlexander Langer# limits the number of times a matching entry can be logged.
675ab6e02daSJordan K. Hubbard#
676ab6e02daSJordan K. Hubbard# WARNING:  IPFIREWALL defaults to a policy of "deny ip from any to any"
677ab6e02daSJordan K. Hubbard# and if you do not add other rules during startup to allow access,
678a236d14cSJordan K. Hubbard# YOU WILL LOCK YOURSELF OUT.  It is suggested that you set firewall_type=open
679ab6e02daSJordan K. Hubbard# in /etc/rc.conf when first enabling this feature, then refining the
680ab6e02daSJordan K. Hubbard# firewall rules in /etc/rc.firewall after you've tested that the new kernel
681ab6e02daSJordan K. Hubbard# feature works properly.
6828dd4744eSJordan K. Hubbard#
683ffdd472dSPeter Wemm# IPFIREWALL_DEFAULT_TO_ACCEPT causes the default rule (at boot) to
684ffdd472dSPeter Wemm# allow everything.  Use with care, if a cracker can crash your
685ffdd472dSPeter Wemm# firewall machine, they can get to your protected machines.  However,
686ffdd472dSPeter Wemm# if you are using it as an as-needed filter for specific problems as
687ffdd472dSPeter Wemm# they arise, then this may be for you.  Changing the default to 'allow'
688ffdd472dSPeter Wemm# means that you won't get stuck if the kernel and /sbin/ipfw binary get
689ffdd472dSPeter Wemm# out of sync.
690d29895dcSGarrett Wollman#
69184bb6a2eSAndre Oppermann# IPDIVERT enables the divert IP sockets, used by ``ipfw divert''.  It
69284bb6a2eSAndre Oppermann# depends on IPFIREWALL if compiled into the kernel.
69393e0e116SJulian Elischer#
69444299225SAndre Oppermann# IPFIREWALL_FORWARD enables changing of the packet destination either
69544299225SAndre Oppermann# to do some sort of policy routing or transparent proxying.  Used by
69644299225SAndre Oppermann# ``ipfw forward''.
69744299225SAndre Oppermann#
698099dd043SAndre Oppermann# IPFIREWALL_FORWARD_EXTENDED enables full packet destination changing
699099dd043SAndre Oppermann# including redirecting packets to local IP addresses and ports.  All
700099dd043SAndre Oppermann# redirections apply to locally generated packets too.  Because of this
701099dd043SAndre Oppermann# great care is required when crafting the ruleset.
702099dd043SAndre Oppermann#
7031b968362SDag-Erling Smørgrav# IPSTEALTH enables code to support stealth forwarding (i.e., forwarding
7041b968362SDag-Erling Smørgrav# packets without touching the ttl).  This can be useful to hide firewalls
7051b968362SDag-Erling Smørgrav# from traceroute and similar tools.
7061b968362SDag-Erling Smørgrav#
7075e331acdSGarrett Wollman# TCPDEBUG enables code which keeps traces of the TCP state machine
7085e331acdSGarrett Wollman# for sockets with the SO_DEBUG option set, which can then be examined
7095e331acdSGarrett Wollman# using the trpt(8) utility.
71065e8111fSBruce Evans#
711e3178a06SJordan K. Hubbardoptions 	MROUTING		# Multicast routing
712e0f688baSJeffrey Hsuoptions 	PIM			# Protocol Independent Multicast
713d29895dcSGarrett Wollmanoptions 	IPFIREWALL		#firewall
7144479e72cSCrist J. Clarkoptions 	IPFIREWALL_VERBOSE	#enable logging to syslogd(8)
7155895e3c8SPeter Wemmoptions 	IPFIREWALL_VERBOSE_LIMIT=100	#limit verbosity
716e43a9900SAlexander Langeroptions 	IPFIREWALL_DEFAULT_TO_ACCEPT	#allow everything by default
71744299225SAndre Oppermannoptions 	IPFIREWALL_FORWARD	#packet destination changes
718099dd043SAndre Oppermannoptions 	IPFIREWALL_FORWARD_EXTENDED	#all packet dest changes
719210d0432SYoshinobu Inoueoptions 	IPV6FIREWALL		#firewall for IPv6
720210d0432SYoshinobu Inoueoptions 	IPV6FIREWALL_VERBOSE
721210d0432SYoshinobu Inoueoptions 	IPV6FIREWALL_VERBOSE_LIMIT=100
722210d0432SYoshinobu Inoueoptions 	IPV6FIREWALL_DEFAULT_TO_ACCEPT
72393e0e116SJulian Elischeroptions 	IPDIVERT		#divert sockets
7249cc86ee9SGuido van Rooijoptions 	IPFILTER		#ipfilter support
7259cc86ee9SGuido van Rooijoptions 	IPFILTER_LOG		#ipfilter logging
7260c3757dfSDarren Reedoptions 	IPFILTER_LOOKUP		#ipfilter pools
7278259bcdfSJeroen Ruigrok van der Wervenoptions 	IPFILTER_DEFAULT_BLOCK	#block all packets by default
7281b968362SDag-Erling Smørgravoptions 	IPSTEALTH		#support for stealth forwarding
72965e8111fSBruce Evansoptions 	TCPDEBUG
7306a8d6623SGarrett Wollman
73153dcc544SMike Silbersack# The MBUF_STRESS_TEST option enables options which create
73253dcc544SMike Silbersack# various random failures / extreme cases related to mbuf
733f8f8803bSBruce Evans# functions.  See mbuf(9) for a list of available test cases.
73453dcc544SMike Silbersackoptions 	MBUF_STRESS_TEST
7354a5ccac7SMike Silbersack
736a79b7128SAlfred Perlstein# Statically Link in accept filters
737a79b7128SAlfred Perlsteinoptions 	ACCEPT_FILTER_DATA
738a79b7128SAlfred Perlsteinoptions 	ACCEPT_FILTER_HTTP
739a79b7128SAlfred Perlstein
740e46cd3d4SDag-Erling Smørgrav# TCP_DROP_SYNFIN adds support for ignoring TCP packets with SYN+FIN. This
741e46cd3d4SDag-Erling Smørgrav# prevents nmap et al. from identifying the TCP/IP stack, but breaks support
742e46cd3d4SDag-Erling Smørgrav# for RFC1644 extensions and is not recommended for web servers.
743e46cd3d4SDag-Erling Smørgrav#
744e46cd3d4SDag-Erling Smørgravoptions 	TCP_DROP_SYNFIN		#drop TCP packets with SYN+FIN
745e46cd3d4SDag-Erling Smørgrav
746b52f8407SBruce M Simpson# TCP_SIGNATURE adds support for RFC 2385 (TCP-MD5) digests. These are
747b52f8407SBruce M Simpson# carried in TCP option 19. This option is commonly used to protect
748b52f8407SBruce M Simpson# TCP sessions (e.g. BGP) where IPSEC is not available nor desirable.
749b52f8407SBruce M Simpson# This is enabled on a per-socket basis using the TCP_MD5SIG socket option.
750017bee74SSUZUKI Shinsuke# This requires the use of 'device crypto', 'options FAST_IPSEC' or 'options
751017bee74SSUZUKI Shinsuke# IPSEC', and 'device cryptodev'.
752b52f8407SBruce M Simpson#options 	TCP_SIGNATURE		#include support for RFC 2385
753b52f8407SBruce M Simpson
754f8f8803bSBruce Evans# DUMMYNET enables the "dummynet" bandwidth limiter.  You need IPFIREWALL
755f8f8803bSBruce Evans# as well.  See dummynet(4) and ipfw(8) for more info.  When you run
756f8f8803bSBruce Evans# DUMMYNET it is advisable to also have "options HZ=1000" to achieve a
757f8f8803bSBruce Evans# smoother scheduling of the traffic.
758c578eeb3SLuigi Rizzo#
75968e9d934SLuigi Rizzo# BRIDGE enables bridging between ethernet cards -- see bridge(4).
760c578eeb3SLuigi Rizzo# You can use IPFIREWALL and DUMMYNET together with bridging.
761c578eeb3SLuigi Rizzo#
76268ec4eb6SLuigi Rizzooptions 	DUMMYNET
76368ec4eb6SLuigi Rizzooptions 	BRIDGE
76468e9d934SLuigi Rizzo
76598cb733cSKenneth D. Merry# Zero copy sockets support.  This enables "zero copy" for sending and
7663c7c6c12SMike Pritchard# receiving data via a socket.  The send side works for any type of NIC,
76798cb733cSKenneth D. Merry# the receive side only works for NICs that support MTUs greater than the
76898cb733cSKenneth D. Merry# page size of your architecture and that support header splitting.  See
76998cb733cSKenneth D. Merry# zero_copy(9) for more details.
77098cb733cSKenneth D. Merryoptions 	ZERO_COPY_SOCKETS
77198cb733cSKenneth D. Merry
7723f8c4506SPoul-Henning Kamp#
7733f8c4506SPoul-Henning Kamp# ATM (HARP version) options
7743f8c4506SPoul-Henning Kamp#
7753f8c4506SPoul-Henning Kamp# ATM_CORE includes the base ATM functionality code.  This must be included
7763f8c4506SPoul-Henning Kamp#	for ATM support.
7773f8c4506SPoul-Henning Kamp#
7783f8c4506SPoul-Henning Kamp# ATM_IP includes support for running IP over ATM.
7793f8c4506SPoul-Henning Kamp#
7803f8c4506SPoul-Henning Kamp# At least one (and usually only one) of the following signalling managers
7813f8c4506SPoul-Henning Kamp# must be included (note that all signalling managers include PVC support):
7823f8c4506SPoul-Henning Kamp# ATM_SIGPVC includes support for the PVC-only signalling manager `sigpvc'.
7833f8c4506SPoul-Henning Kamp# ATM_SPANS includes support for the `spans' signalling manager, which runs
7843f8c4506SPoul-Henning Kamp#	the FORE Systems's proprietary SPANS signalling protocol.
7853f8c4506SPoul-Henning Kamp# ATM_UNI includes support for the `uni30' and `uni31' signalling managers,
7863f8c4506SPoul-Henning Kamp#	which run the ATM Forum UNI 3.x signalling protocols.
7873f8c4506SPoul-Henning Kamp#
7883f8c4506SPoul-Henning Kamp# The `hfa' driver provides support for the FORE Systems, Inc.
7893f8c4506SPoul-Henning Kamp# PCA-200E ATM PCI Adapter.
7903f8c4506SPoul-Henning Kamp#
79158aa55efSHartmut Brandt# The `harp' pseudo-driver makes all NATM interface drivers available to HARP.
79258aa55efSHartmut Brandt#
7933f8c4506SPoul-Henning Kampoptions 	ATM_CORE		#core ATM protocol family
7943f8c4506SPoul-Henning Kampoptions 	ATM_IP			#IP over ATM support
7953f8c4506SPoul-Henning Kampoptions 	ATM_SIGPVC		#SIGPVC signalling manager
7963f8c4506SPoul-Henning Kampoptions 	ATM_SPANS		#SPANS signalling manager
7973f8c4506SPoul-Henning Kampoptions 	ATM_UNI			#UNI signalling manager
79826837af4SMatthew N. Dodd
79904961ff8SMike Barcroftdevice		hfa			#FORE PCA-200E ATM PCI
80058aa55efSHartmut Brandtdevice		harp			#Pseudo-interface for NATM
8013f8c4506SPoul-Henning Kamp
8026a8d6623SGarrett Wollman
8036a8d6623SGarrett Wollman#####################################################################
8046a8d6623SGarrett Wollman# FILESYSTEM OPTIONS
805e3178a06SJordan K. Hubbard
8062365e64fSRodney W. Grimes#
8076a8d6623SGarrett Wollman# Only the root, /usr, and /tmp filesystems need be statically
8086a8d6623SGarrett Wollman# compiled; everything else will be automatically loaded at mount
809888a8e35SPoul-Henning Kamp# time.  (Exception: the UFS family--- FFS --- cannot
8106a8d6623SGarrett Wollman# currently be demand-loaded.)  Some people still prefer to statically
8116a8d6623SGarrett Wollman# compile other filesystems as well.
8126a8d6623SGarrett Wollman#
813a5b88b01SKATO Takenori# NB: The NULL, PORTAL, UMAP and UNION filesystems are known to be
814a5b88b01SKATO Takenori# buggy, and WILL panic your system if you attempt to do anything with
815a5b88b01SKATO Takenori# them.  They are included here as an incentive for some enterprising
816a5b88b01SKATO Takenori# soul to sit down and fix them.
8172365e64fSRodney W. Grimes#
818f1a9c715SDavid Greenman
8196a8d6623SGarrett Wollman# One of these is mandatory:
8206a8d6623SGarrett Wollmanoptions 	FFS			#Fast filesystem
821dd1c7d13SBruce Evansoptions 	NFSCLIENT		#Network File System client
8226a8d6623SGarrett Wollman
8236a8d6623SGarrett Wollman# The rest are optional:
8245895e3c8SPeter Wemmoptions 	CD9660			#ISO 9660 filesystem
82599d300a1SRuslan Ermilovoptions 	FDESCFS			#File descriptor filesystem
8260adb9b96SPeter Wemmoptions 	HPFS			#OS/2 File system
827dba11ce5SAlexander Langeroptions 	MSDOSFS			#MS DOS File System (FAT, FAT32)
828dd1c7d13SBruce Evansoptions 	NFSSERVER		#Network File System server
8293ee9bf69SEivind Eklundoptions 	NTFS			#NT File System
830f1a9c715SDavid Greenmanoptions 	NULLFS			#NULL filesystem
831dd1c7d13SBruce Evans# Broken (depends on NCP):
832b40ce416SJulian Elischer#options 	NWFS			#NetWare filesystem
83399d300a1SRuslan Ermilovoptions 	PORTALFS		#Portal filesystem
8344d2647f9SDag-Erling Smørgravoptions 	PROCFS			#Process filesystem (requires PSEUDOFS)
83552ebde4fSDag-Erling Smørgravoptions 	PSEUDOFS		#Pseudo-filesystem framework
836bcc1205cSDag-Erling Smørgravoptions 	PSEUDOFS_TRACE		#Debugging support for PSEUDOFS
837daaa73b5SRobert Watsonoptions 	SMBFS			#SMB/CIFS filesystem
838df263cbdSScott Longoptions 	UDF			#Universal Disk Format
839dd1c7d13SBruce Evans# Broken (seriously (functionally) broken):
840b21126c6SPeter Wemm#options 	UMAPFS			#UID map filesystem
84199d300a1SRuslan Ermilovoptions 	UNIONFS			#Union filesystem
842bcf77694SPeter Wemm# The xFS_ROOT options REQUIRE the associated ``options xFS''
843bcf77694SPeter Wemmoptions 	NFS_ROOT		#NFS usable as root device
844f1a9c715SDavid Greenman
845d0a28bafSAlexander Langer# Soft updates is a technique for improving filesystem speed and
846d61e6649SAlexander Langer# making abrupt shutdown less risky.
847f8f8d7afSEivind Eklund#
8483d5c4fdcSPoul-Henning Kampoptions 	SOFTUPDATES
849b1897c19SJulian Elischer
850a64ed089SRobert Watson# Extended attributes allow additional data to be associated with files,
85151be6918SChris D. Faulhaber# and is used for ACLs, Capabilities, and MAC labels.
85251be6918SChris D. Faulhaber# See src/sys/ufs/ufs/README.extattr for more information.
85349993db0SRobert Watsonoptions 	UFS_EXTATTR
85449993db0SRobert Watsonoptions 	UFS_EXTATTR_AUTOSTART
855a64ed089SRobert Watson
85651be6918SChris D. Faulhaber# Access Control List support for UFS filesystems.  The current ACL
85751be6918SChris D. Faulhaber# implementation requires extended attribute support, UFS_EXTATTR,
85851be6918SChris D. Faulhaber# for the underlying filesystem.
85951be6918SChris D. Faulhaber# See src/sys/ufs/ufs/README.acls for more information.
86051be6918SChris D. Faulhaberoptions 	UFS_ACL
86151be6918SChris D. Faulhaber
8629b5ad47fSIan Dowse# Directory hashing improves the speed of operations on very large
8639b5ad47fSIan Dowse# directories at the expense of some memory.
8649b5ad47fSIan Dowseoptions 	UFS_DIRHASH
8659b5ad47fSIan Dowse
86671e4fff8SPoul-Henning Kamp# Make space in the kernel for a root filesystem on a md device.
86771e4fff8SPoul-Henning Kamp# Define to the number of kilobytes to reserve for the filesystem.
86871e4fff8SPoul-Henning Kampoptions 	MD_ROOT_SIZE=10
86971e4fff8SPoul-Henning Kamp
87071e4fff8SPoul-Henning Kamp# Make the md device a potential root device, either with preloaded
87171e4fff8SPoul-Henning Kamp# images of type mfs_root or md_root.
87271e4fff8SPoul-Henning Kampoptions 	MD_ROOT
873d52d7365SPoul-Henning Kamp
874495967e4SEivind Eklund# Disk quotas are supported when this option is enabled.
8752365e64fSRodney W. Grimesoptions 	QUOTA			#enable disk quotas
8766a8d6623SGarrett Wollman
877276756a4SDag-Erling Smørgrav# If you are running a machine just as a fileserver for PC and MAC
878276756a4SDag-Erling Smørgrav# users, using SAMBA or Netatalk, you may consider setting this option
879276756a4SDag-Erling Smørgrav# and keeping all those users' directories on a filesystem that is
880276756a4SDag-Erling Smørgrav# mounted with the suiddir option. This gives new files the same
881ec4e5afbSRobert Nordier# ownership as the directory (similar to group). It's a security hole
8826110161fSDag-Erling Smørgrav# if you let these users run programs, so confine it to file-servers
883276756a4SDag-Erling Smørgrav# (but it'll save you lots of headaches in those cases). Root owned
884276756a4SDag-Erling Smørgrav# directories are exempt and X bits are cleared. The suid bit must be
885276756a4SDag-Erling Smørgrav# set on the directory as well; see chmod(1) PC owners can't see/set
886276756a4SDag-Erling Smørgrav# ownerships so they keep getting their toes trodden on. This saves
887276756a4SDag-Erling Smørgrav# you all the support calls as the filesystem it's used on will act as
888276756a4SDag-Erling Smørgrav# they expect: "It's my dir so it must be my file".
889cb800e34SJulian Elischer#
890cb800e34SJulian Elischeroptions 	SUIDDIR
891cb800e34SJulian Elischer
892df394affSJohn-Mark Gurney# NFS options:
8935895e3c8SPeter Wemmoptions 	NFS_MINATTRTIMO=3	# VREG attrib cache timeout in sec
8945895e3c8SPeter Wemmoptions 	NFS_MAXATTRTIMO=60
8955895e3c8SPeter Wemmoptions 	NFS_MINDIRATTRTIMO=30	# VDIR attrib cache timeout in sec
8965895e3c8SPeter Wemmoptions 	NFS_MAXDIRATTRTIMO=60
8975895e3c8SPeter Wemmoptions 	NFS_GATHERDELAY=10	# Default write gather delay (msec)
8985895e3c8SPeter Wemmoptions 	NFS_WDELAYHASHSIZ=16	# and with this
899df394affSJohn-Mark Gurneyoptions 	NFS_DEBUG		# Enable NFS Debugging
900df394affSJohn-Mark Gurney
9019afcea2fSRobert V. Baron# Coda stuff:
9029afcea2fSRobert V. Baronoptions 	CODA			#CODA filesystem.
903f37a929cSPeter Wemmdevice		vcoda			#coda minicache <-> venus comm.
904d14e51c9STim J. Robbins# Use the old Coda 5.x venus<->kernel interface instead of the new
905d14e51c9STim J. Robbins# realms-aware 6.x protocol.
906d14e51c9STim J. Robbins#options 	CODA_COMPAT_5
907a1d55890SJordan K. Hubbard
908053a2b61SEivind Eklund#
909053a2b61SEivind Eklund# Add support for the EXT2FS filesystem of Linux fame.  Be a bit
910053a2b61SEivind Eklund# careful with this - the ext2fs code has a tendency to lag behind
911053a2b61SEivind Eklund# changes and not be exercised very much, so mounting read/write could
912053a2b61SEivind Eklund# be dangerous (and even mounting read only could result in panics.)
913053a2b61SEivind Eklund#
9145895e3c8SPeter Wemmoptions 	EXT2FS
915053a2b61SEivind Eklund
916dd85920aSJason Evans# Use real implementations of the aio_* system calls.  There are numerous
9170cbe2ad6SRobert Watson# stability and security issues in the current aio code that make it
9180cbe2ad6SRobert Watson# unsuitable for inclusion on machines with untrusted local users.
919dd85920aSJason Evansoptions 	VFS_AIO
920053a2b61SEivind Eklund
9218ab2f5ecSMark Murray# Cryptographically secure random number generator; /dev/random
922ac519db0SMark Murraydevice		random
92315bbdecfSMark Murray
9248ab2f5ecSMark Murray# The system memory devices; /dev/mem, /dev/kmem
9258ab2f5ecSMark Murraydevice		mem
9268ab2f5ecSMark Murray
927c4f02a89SMax Khon# Optional character code conversion support with LIBICONV.
928c4f02a89SMax Khon# Each option requires their base file system and LIBICONV.
929c4f02a89SMax Khonoptions 	CD9660_ICONV
930c4f02a89SMax Khonoptions 	MSDOSFS_ICONV
931c4f02a89SMax Khonoptions 	NTFS_ICONV
932126f0dfaSScott Longoptions 	UDF_ICONV
933c4f02a89SMax Khon
9343bc482ecSTim J. Robbins# Experimental support for large MS-DOS filesystems.
9353bc482ecSTim J. Robbins#
9363bc482ecSTim J. Robbins# WARNING: This uses at least 32 bytes of kernel memory (which is not
9373bc482ecSTim J. Robbins# reclaimed until the FS is unmounted) for each file on disk to map
9383bc482ecSTim J. Robbins# between the 32-bit inode numbers used by VFS and the 64-bit pseudo-inode
9393bc482ecSTim J. Robbins# numbers used internally by msdosfs. This is only safe to use in certain
9403bc482ecSTim J. Robbins# controlled situations (e.g. read-only FS with less than 1 million files).
9413bc482ecSTim J. Robbins# Since the mappings do not persist across unmounts (or reboots), these
9423bc482ecSTim J. Robbins# filesystems are not suitable for exporting through NFS, or any other
9433bc482ecSTim J. Robbins# application that requires fixed inode numbers.
9443bc482ecSTim J. Robbinsoptions 	MSDOSFS_LARGE
9453bc482ecSTim J. Robbins
9466a8d6623SGarrett Wollman
9476a8d6623SGarrett Wollman#####################################################################
948abc97a06SBruce Evans# POSIX P1003.1B
949abc97a06SBruce Evans
950ec4e5afbSRobert Nordier# Real time extensions added in the 1993 Posix
951abc97a06SBruce Evans# _KPOSIX_PRIORITY_SCHEDULING: Build in _POSIX_PRIORITY_SCHEDULING
952abc97a06SBruce Evans
9535895e3c8SPeter Wemmoptions 	_KPOSIX_PRIORITY_SCHEDULING
9548cbf4973SAlfred Perlstein# p1003_1b_semaphores are very experimental,
9558cbf4973SAlfred Perlstein# user should be ready to assist in debugging if problems arise.
9563ffb9fadSAlfred Perlsteinoptions 	P1003_1B_SEMAPHORES
957abc97a06SBruce Evans
958abc97a06SBruce Evans
959abc97a06SBruce Evans#####################################################################
96012e9f256SRobert Watson# SECURITY POLICY PARAMETERS
96112e9f256SRobert Watson
962cd6d1d76SBruce Evans# Support for Mandatory Access Control (MAC):
963cd6d1d76SBruce Evansoptions 	MAC
964eae2f20cSRobert Watsonoptions 	MAC_BIBA
965eae2f20cSRobert Watsonoptions 	MAC_BSDEXTENDED
966cd6d1d76SBruce Evansoptions 	MAC_DEBUG
967eae2f20cSRobert Watsonoptions 	MAC_IFOFF
968c4725737SRobert Watsonoptions 	MAC_LOMAC
969eae2f20cSRobert Watsonoptions 	MAC_MLS
970eae2f20cSRobert Watsonoptions 	MAC_NONE
971eae2f20cSRobert Watsonoptions 	MAC_PARTITION
97203d03162SRobert Watsonoptions 	MAC_PORTACL
973eae2f20cSRobert Watsonoptions 	MAC_SEEOTHERUIDS
974782f7255SRobert Watsonoptions 	MAC_STUB
975eae2f20cSRobert Watsonoptions 	MAC_TEST
97612e9f256SRobert Watson
97712e9f256SRobert Watson
97812e9f256SRobert Watson#####################################################################
979000033d0SJeroen Ruigrok van der Werven# CLOCK OPTIONS
980000033d0SJeroen Ruigrok van der Werven
981000033d0SJeroen Ruigrok van der Werven# The granularity of operation is controlled by the kernel option HZ whose
982c578eeb3SLuigi Rizzo# default value (100) means a granularity of 10ms (1s/HZ).
983c578eeb3SLuigi Rizzo# Some subsystems, such as DUMMYNET, might benefit from a smaller
984c578eeb3SLuigi Rizzo# granularity such as 1ms or less, for a smoother scheduling of packets.
985c578eeb3SLuigi Rizzo# Consider, however, that reducing the granularity too much might
986c578eeb3SLuigi Rizzo# cause excessive overhead in clock interrupt processing,
987c578eeb3SLuigi Rizzo# potentially causing ticks to be missed and thus actually reducing
988000033d0SJeroen Ruigrok van der Werven# the accuracy of operation.
989000033d0SJeroen Ruigrok van der Werven
990000033d0SJeroen Ruigrok van der Wervenoptions 	HZ=100
991000033d0SJeroen Ruigrok van der Werven
992f309f881SJohn Baldwin# Enable support for the kernel PLL to use an external PPS signal,
993f309f881SJohn Baldwin# under supervision of [x]ntpd(8)
994f309f881SJohn Baldwin# More info in ntpd documentation: http://www.eecis.udel.edu/~ntp
995f309f881SJohn Baldwin
996f309f881SJohn Baldwinoptions 	PPS_SYNC
997f309f881SJohn Baldwin
998000033d0SJeroen Ruigrok van der Werven
999000033d0SJeroen Ruigrok van der Werven#####################################################################
1000de6a307eSPeter Dufault# SCSI DEVICES
1001de6a307eSPeter Dufault
10026a8d6623SGarrett Wollman# SCSI DEVICE CONFIGURATION
10036a8d6623SGarrett Wollman
10046a8d6623SGarrett Wollman# The SCSI subsystem consists of the `base' SCSI code, a number of
1005ebc1a0e2SPeter Dufault# high-level SCSI device `type' drivers, and the low-level host-adapter
10066a8d6623SGarrett Wollman# device drivers.  The host adapters are listed in the ISA and PCI
10076a8d6623SGarrett Wollman# device configuration sections below.
10086a8d6623SGarrett Wollman#
1009e14eb5a1SGarrett Wollman# It is possible to wire down your SCSI devices so that a given bus,
1010e14eb5a1SGarrett Wollman# target, and LUN always come on line as the same device unit.  In
1011e14eb5a1SGarrett Wollman# earlier versions the unit numbers were assigned in the order that
1012e14eb5a1SGarrett Wollman# the devices were probed on the SCSI bus.  This means that if you
1013e14eb5a1SGarrett Wollman# removed a disk drive, you may have had to rewrite your /etc/fstab
1014e14eb5a1SGarrett Wollman# file, and also that you had to be careful when adding a new disk
1015e14eb5a1SGarrett Wollman# as it may have been probed earlier and moved your device configuration
1016e14eb5a1SGarrett Wollman# around.  (See also option GEOM_VOL for a different solution to this
1017e14eb5a1SGarrett Wollman# problem.)
1018ebc1a0e2SPeter Dufault
1019ebc1a0e2SPeter Dufault# This old behavior is maintained as the default behavior.  The unit
1020ebc1a0e2SPeter Dufault# assignment begins with the first non-wired down unit for a device
1021700daf5eSJustin T. Gibbs# type.  For example, if you wire a disk as "da3" then the first
1022700daf5eSJustin T. Gibbs# non-wired disk will be assigned da4.
1023ebc1a0e2SPeter Dufault
1024ebc1a0e2SPeter Dufault# The syntax for wiring down devices is:
1025ebc1a0e2SPeter Dufault
1026f71c01ccSPeter Wemmhint.scbus.0.at="ahc0"
1027f71c01ccSPeter Wemmhint.scbus.1.at="ahc1"
1028f71c01ccSPeter Wemmhint.scbus.1.bus="0"
1029f71c01ccSPeter Wemmhint.scbus.3.at="ahc2"
1030f71c01ccSPeter Wemmhint.scbus.3.bus="0"
1031f71c01ccSPeter Wemmhint.scbus.2.at="ahc2"
1032f71c01ccSPeter Wemmhint.scbus.2.bus="1"
1033f71c01ccSPeter Wemmhint.da.0.at="scbus0"
1034f71c01ccSPeter Wemmhint.da.0.target="0"
1035f71c01ccSPeter Wemmhint.da.0.unit="0"
1036f71c01ccSPeter Wemmhint.da.1.at="scbus3"
1037f71c01ccSPeter Wemmhint.da.1.target="1"
1038f71c01ccSPeter Wemmhint.da.2.at="scbus2"
1039f71c01ccSPeter Wemmhint.da.2.target="3"
1040f71c01ccSPeter Wemmhint.sa.1.at="scbus1"
1041f71c01ccSPeter Wemmhint.sa.1.target="6"
1042ebc1a0e2SPeter Dufault
1043ebc1a0e2SPeter Dufault# "units" (SCSI logical unit number) that are not specified are
1044ebc1a0e2SPeter Dufault# treated as if specified as LUN 0.
1045ebc1a0e2SPeter Dufault
1046ebc1a0e2SPeter Dufault# All SCSI devices allocate as many units as are required.
1047ebc1a0e2SPeter Dufault
1048cf2458c9SMatt Jacob# The ch driver drives SCSI Media Changer ("jukebox") devices.
1049cf2458c9SMatt Jacob#
1050cf2458c9SMatt Jacob# The da driver drives SCSI Direct Access ("disk") and Optical Media
1051cf2458c9SMatt Jacob# ("WORM") devices.
1052cf2458c9SMatt Jacob#
1053cf2458c9SMatt Jacob# The sa driver drives SCSI Sequential Access ("tape") devices.
1054cf2458c9SMatt Jacob#
1055cf2458c9SMatt Jacob# The cd driver drives SCSI Read Only Direct Access ("cd") devices.
1056cf2458c9SMatt Jacob#
10573c7c6c12SMike Pritchard# The ses driver drives SCSI Environment Services ("ses") and
10583c7c6c12SMike Pritchard# SAF-TE ("SCSI Accessible Fault-Tolerant Enclosure") devices.
1059cf2458c9SMatt Jacob#
1060cf2458c9SMatt Jacob# The pt driver drives SCSI Processor devices.
1061cf2458c9SMatt Jacob#
1062cf2458c9SMatt Jacob#
1063cf2458c9SMatt Jacob# Target Mode support is provided here but also requires that a SIM
1064cf2458c9SMatt Jacob# (SCSI Host Adapter Driver) provide support as well.
1065cf2458c9SMatt Jacob#
1066cf2458c9SMatt Jacob# The targ driver provides target mode support as a Processor type device.
1067cf2458c9SMatt Jacob# It exists to give the minimal context necessary to respond to Inquiry
1068cf2458c9SMatt Jacob# commands. There is a sample user application that shows how the rest
1069cf2458c9SMatt Jacob# of the command support might be done in /usr/share/examples/scsi_target.
1070cf2458c9SMatt Jacob#
1071cf2458c9SMatt Jacob# The targbh driver provides target mode support and exists to respond
1072cf2458c9SMatt Jacob# to incoming commands that do not otherwise have a logical unit assigned
1073cf2458c9SMatt Jacob# to them.
1074cf2458c9SMatt Jacob#
1075265368d4SRodney W. Grimes# The "unknown" device (uk? in pre-2.0.5) is now part of the base SCSI
1076cf2458c9SMatt Jacob# configuration as the "pass" driver.
1077ebc1a0e2SPeter Dufault
1078c9953c3bSPeter Wemmdevice		scbus		#base SCSI code
1079c9953c3bSPeter Wemmdevice		ch		#SCSI media changers
1080c9953c3bSPeter Wemmdevice		da		#SCSI direct access devices (aka disks)
1081c9953c3bSPeter Wemmdevice		sa		#SCSI tapes
1082c9953c3bSPeter Wemmdevice		cd		#SCSI CD-ROMs
108364ed91d5SMatt Jacobdevice		ses		#SCSI Environmental Services (and SAF-TE)
1084cf2458c9SMatt Jacobdevice		pt		#SCSI processor
108564ed91d5SMatt Jacobdevice		targ		#SCSI Target Mode Code
108664ed91d5SMatt Jacobdevice		targbh		#SCSI Target Mode Blackhole Device
1087cf2458c9SMatt Jacobdevice		pass		#CAM passthrough driver
10888909a72bSPeter Dufault
1089700daf5eSJustin T. Gibbs# CAM OPTIONS:
1090700daf5eSJustin T. Gibbs# debugging options:
1091700daf5eSJustin T. Gibbs# -- NOTE --  If you specify one of the bus/target/lun options, you must
1092700daf5eSJustin T. Gibbs#             specify them all!
1093700daf5eSJustin T. Gibbs# CAMDEBUG: When defined enables debugging macros
1094700daf5eSJustin T. Gibbs# CAM_DEBUG_BUS:  Debug the given bus.  Use -1 to debug all busses.
1095700daf5eSJustin T. Gibbs# CAM_DEBUG_TARGET:  Debug the given target.  Use -1 to debug all targets.
1096700daf5eSJustin T. Gibbs# CAM_DEBUG_LUN:  Debug the given lun.  Use -1 to debug all luns.
1097d05caa00SKenneth D. Merry# CAM_DEBUG_FLAGS:  OR together CAM_DEBUG_INFO, CAM_DEBUG_TRACE,
1098d05caa00SKenneth D. Merry#                   CAM_DEBUG_SUBTRACE, and CAM_DEBUG_CDB
1099700daf5eSJustin T. Gibbs#
1100700daf5eSJustin T. Gibbs# CAM_MAX_HIGHPOWER: Maximum number of concurrent high power (start unit) cmds
1101b29f9e40SMatt Jacob# CAM_NEW_TRAN_CODE: this is the new transport layer code that will be switched
1102b29f9e40SMatt Jacob#			to soon
1103700daf5eSJustin T. Gibbs# SCSI_NO_SENSE_STRINGS: When defined disables sense descriptions
1104700daf5eSJustin T. Gibbs# SCSI_NO_OP_STRINGS: When defined disables opcode descriptions
110556234437SKenneth D. Merry# SCSI_DELAY: The number of MILLISECONDS to freeze the SIM (scsi adapter)
110656234437SKenneth D. Merry#             queue after a bus reset, and the number of milliseconds to
11073a937198SBrooks Davis#             freeze the device queue after a bus device reset.  This
11083a937198SBrooks Davis#             can be changed at boot and runtime with the
11093a937198SBrooks Davis#             kern.cam.scsi_delay tunable/sysctl.
1110700daf5eSJustin T. Gibbsoptions 	CAMDEBUG
11115895e3c8SPeter Wemmoptions 	CAM_DEBUG_BUS=-1
11125895e3c8SPeter Wemmoptions 	CAM_DEBUG_TARGET=-1
11135895e3c8SPeter Wemmoptions 	CAM_DEBUG_LUN=-1
111425388b6cSBruce Evansoptions 	CAM_DEBUG_FLAGS=(CAM_DEBUG_INFO|CAM_DEBUG_TRACE|CAM_DEBUG_CDB)
11155895e3c8SPeter Wemmoptions 	CAM_MAX_HIGHPOWER=4
1116700daf5eSJustin T. Gibbsoptions 	SCSI_NO_SENSE_STRINGS
1117700daf5eSJustin T. Gibbsoptions 	SCSI_NO_OP_STRINGS
111832672ba8SAndre Oppermannoptions 	SCSI_DELAY=5000	# Be pessimistic about Joe SCSI device
11191a7c583cSGarrett Wollman
1120700daf5eSJustin T. Gibbs# Options for the CAM CDROM driver:
1121700daf5eSJustin T. Gibbs# CHANGER_MIN_BUSY_SECONDS: Guaranteed minimum time quantum for a changer LUN
1122700daf5eSJustin T. Gibbs# CHANGER_MAX_BUSY_SECONDS: Maximum time quantum per changer LUN, only
1123700daf5eSJustin T. Gibbs#                           enforced if there is I/O waiting for another LUN
1124700daf5eSJustin T. Gibbs# The compiled in defaults for these variables are 2 and 10 seconds,
1125700daf5eSJustin T. Gibbs# respectively.
112693063432SJoerg Wunsch#
1127700daf5eSJustin T. Gibbs# These can also be changed on the fly with the following sysctl variables:
1128700daf5eSJustin T. Gibbs# kern.cam.cd.changer.min_busy_seconds
1129700daf5eSJustin T. Gibbs# kern.cam.cd.changer.max_busy_seconds
113093063432SJoerg Wunsch#
11315895e3c8SPeter Wemmoptions 	CHANGER_MIN_BUSY_SECONDS=2
11325895e3c8SPeter Wemmoptions 	CHANGER_MAX_BUSY_SECONDS=10
113393063432SJoerg Wunsch
11349dfb4471SKenneth D. Merry# Options for the CAM sequential access driver:
1135b29f9e40SMatt Jacob# SA_IO_TIMEOUT: Timeout for read/write/wfm  operations, in minutes
11369dfb4471SKenneth D. Merry# SA_SPACE_TIMEOUT: Timeout for space operations, in minutes
11379dfb4471SKenneth D. Merry# SA_REWIND_TIMEOUT: Timeout for rewind operations, in minutes
11389dfb4471SKenneth D. Merry# SA_ERASE_TIMEOUT: Timeout for erase operations, in minutes
11399f050ed5SMatt Jacob# SA_1FM_AT_EOD: Default to model which only has a default one filemark at EOT.
114025388b6cSBruce Evansoptions 	SA_IO_TIMEOUT=4
114125388b6cSBruce Evansoptions 	SA_SPACE_TIMEOUT=60
114225388b6cSBruce Evansoptions 	SA_REWIND_TIMEOUT=(2*60)
114325388b6cSBruce Evansoptions 	SA_ERASE_TIMEOUT=(4*60)
11449f050ed5SMatt Jacoboptions 	SA_1FM_AT_EOD
11459dfb4471SKenneth D. Merry
11463ece1bd2SKenneth D. Merry# Optional timeout for the CAM processor target (pt) device
11473ece1bd2SKenneth D. Merry# This is specified in seconds.  The default is 60 seconds.
114825388b6cSBruce Evansoptions 	SCSI_PT_DEFAULT_TIMEOUT=60
11493ece1bd2SKenneth D. Merry
11508904e70bSMatt Jacob# Optional enable of doing SES passthrough on other devices (e.g., disks)
11518904e70bSMatt Jacob#
11528904e70bSMatt Jacob# Normally disabled because a lot of newer SCSI disks report themselves
11538904e70bSMatt Jacob# as having SES capabilities, but this can then clot up attempts to build
11548904e70bSMatt Jacob# build a topology with the SES device that's on the box these drives
11558904e70bSMatt Jacob# are in....
11568904e70bSMatt Jacoboptions 	SES_ENABLE_PASSTHROUGH
11578904e70bSMatt Jacob
11586a8d6623SGarrett Wollman
11596a8d6623SGarrett Wollman#####################################################################
11606a8d6623SGarrett Wollman# MISCELLANEOUS DEVICES AND OPTIONS
11616a8d6623SGarrett Wollman
11621160da92SJoerg Wunsch# The `pty' device usually turns out to be ``effectively mandatory'',
11631160da92SJoerg Wunsch# as it is required for `telnetd', `rlogind', `screen', `emacs', and
11641160da92SJoerg Wunsch# `xterm', among others.
11651160da92SJoerg Wunsch
1166f71c01ccSPeter Wemmdevice		pty		#Pseudo ttys
11676d823e81SJulian Elischerdevice		nmdm		#back-to-back tty devices
1168f71c01ccSPeter Wemmdevice		md		#Memory/malloc disk
1169f71c01ccSPeter Wemmdevice		snp		#Snoop device - to look at pty/vty/etc..
1170efacde1bSBrooks Davisdevice		ccd		#Concatenated disk driver
1171be174c7eSGreg Lehey
11726f2d8adbSBoris Popov# Kernel side iconv library
11736f2d8adbSBoris Popovoptions 	LIBICONV
11746f2d8adbSBoris Popov
117558067a99SPoul-Henning Kamp# Size of the kernel message buffer.  Should be N * pagesize.
11765895e3c8SPeter Wemmoptions 	MSGBUF_SIZE=40960
117758067a99SPoul-Henning Kamp
11789c62b3eeSDavid Schultz# Maximum size of a tty or pty input buffer.
11799c62b3eeSDavid Schultzoptions 	TTYHOG=8193
11809c62b3eeSDavid Schultz
11816a8d6623SGarrett Wollman
11826a8d6623SGarrett Wollman#####################################################################
1183d61e6649SAlexander Langer# HARDWARE DEVICE CONFIGURATION
1184d61e6649SAlexander Langer
1185d61e6649SAlexander Langer# For ISA the required hints are listed.
1186d61e6649SAlexander Langer# EISA, MCA, PCI and pccard are self identifying buses, so no hints
1187d61e6649SAlexander Langer# are needed.
1188d61e6649SAlexander Langer
1189d61e6649SAlexander Langer#
1190d61e6649SAlexander Langer# Mandatory devices:
1191d61e6649SAlexander Langer#
1192d61e6649SAlexander Langer
11936e818956SDavid E. O'Brien# The keyboard controller; it controls the keyboard and the PS/2 mouse.
11946e818956SDavid E. O'Briendevice		atkbdc
11956e818956SDavid E. O'Brienhint.atkbdc.0.at="isa"
11966e818956SDavid E. O'Brienhint.atkbdc.0.port="0x060"
11976e818956SDavid E. O'Brien
11986e818956SDavid E. O'Brien# The AT keyboard
11996e818956SDavid E. O'Briendevice		atkbd
12006e818956SDavid E. O'Brienhint.atkbd.0.at="atkbdc"
12016e818956SDavid E. O'Brienhint.atkbd.0.irq="1"
12026e818956SDavid E. O'Brien
12036e818956SDavid E. O'Brien# Options for atkbd:
12046e818956SDavid E. O'Brienoptions 	ATKBD_DFLT_KEYMAP	# specify the built-in keymap
12056e818956SDavid E. O'Brienmakeoptions	ATKBD_DFLT_KEYMAP=jp.106
12066e818956SDavid E. O'Brien
12076e818956SDavid E. O'Brien# These options are valid for other keyboard drivers as well.
12086e818956SDavid E. O'Brienoptions 	KBD_DISABLE_KEYMAP_LOAD	# refuse to load a keymap
12096e818956SDavid E. O'Brienoptions 	KBD_INSTALL_CDEV	# install a CDEV entry in /dev
12106e818956SDavid E. O'Brien
12116e818956SDavid E. O'Brien# `flags' for atkbd:
12126e818956SDavid E. O'Brien#       0x01    Force detection of keyboard, else we always assume a keyboard
12136e818956SDavid E. O'Brien#       0x02    Don't reset keyboard, useful for some newer ThinkPads
12146e818956SDavid E. O'Brien#	0x03	Force detection and avoid reset, might help with certain
12156e818956SDavid E. O'Brien#		dockingstations
12166e818956SDavid E. O'Brien#       0x04    Old-style (XT) keyboard support, useful for older ThinkPads
12176e818956SDavid E. O'Brien
12186e818956SDavid E. O'Brien# PS/2 mouse
12196e818956SDavid E. O'Briendevice		psm
12206e818956SDavid E. O'Brienhint.psm.0.at="atkbdc"
12216e818956SDavid E. O'Brienhint.psm.0.irq="12"
12226e818956SDavid E. O'Brien
12236e818956SDavid E. O'Brien# Options for psm:
12246e818956SDavid E. O'Brienoptions 	PSM_HOOKRESUME		#hook the system resume event, useful
12256e818956SDavid E. O'Brien					#for some laptops
12266e818956SDavid E. O'Brienoptions 	PSM_RESETAFTERSUSPEND	#reset the device at the resume event
12276e818956SDavid E. O'Brien
12286e818956SDavid E. O'Brien# Video card driver for VGA adapters.
12296e818956SDavid E. O'Briendevice		vga
12306e818956SDavid E. O'Brienhint.vga.0.at="isa"
12316e818956SDavid E. O'Brien
12326e818956SDavid E. O'Brien# Options for vga:
12336e818956SDavid E. O'Brien# Try the following option if the mouse pointer is not drawn correctly
12346e818956SDavid E. O'Brien# or font does not seem to be loaded properly.  May cause flicker on
12356e818956SDavid E. O'Brien# some systems.
12366e818956SDavid E. O'Brienoptions 	VGA_ALT_SEQACCESS
12376e818956SDavid E. O'Brien
12386e818956SDavid E. O'Brien# If you can dispense with some vga driver features, you may want to
12396e818956SDavid E. O'Brien# use the following options to save some memory.
12406e818956SDavid E. O'Brien#options 	VGA_NO_FONT_LOADING	# don't save/load font
12416e818956SDavid E. O'Brien#options 	VGA_NO_MODE_CHANGE	# don't change video modes
12426e818956SDavid E. O'Brien
12436e818956SDavid E. O'Brien# Older video cards may require this option for proper operation.
12446e818956SDavid E. O'Brienoptions 	VGA_SLOW_IOACCESS	# do byte-wide i/o's to TS and GDC regs
12456e818956SDavid E. O'Brien
12466e818956SDavid E. O'Brien# The following option probably won't work with the LCD displays.
12476e818956SDavid E. O'Brienoptions 	VGA_WIDTH90		# support 90 column modes
12486e818956SDavid E. O'Brien
12497f5092f3SJohn Baldwinoptions 	FB_DEBUG		# Frame buffer debugging
12507f5092f3SJohn Baldwin
1251dde04295SJohn Baldwindevice		splash			# Splash screen and screen saver support
12527f5092f3SJohn Baldwin
12537f5092f3SJohn Baldwin# Various screen savers.
12547f5092f3SJohn Baldwindevice		blank_saver
12557f5092f3SJohn Baldwindevice		daemon_saver
125627dc7a92SJohn Baldwindevice		dragon_saver
12577f5092f3SJohn Baldwindevice		fade_saver
12587f5092f3SJohn Baldwindevice		fire_saver
12597f5092f3SJohn Baldwindevice		green_saver
12607f5092f3SJohn Baldwindevice		logo_saver
12617f5092f3SJohn Baldwindevice		rain_saver
126227dc7a92SJohn Baldwindevice		snake_saver
12637f5092f3SJohn Baldwindevice		star_saver
12647f5092f3SJohn Baldwindevice		warp_saver
12657f5092f3SJohn Baldwin
1266ee16b430SBruce Evans# The syscons console driver (sco color console compatible).
1267f453022cSPeter Wemmdevice		sc
1268f71c01ccSPeter Wemmhint.sc.0.at="isa"
1269683cbdf4SBruce Evansoptions 	MAXCONS=16		# number of virtual consoles
12706e8394b8SKazutaka YOKOTAoptions 	SC_ALT_MOUSE_IMAGE	# simplified mouse cursor in text mode
12716e8394b8SKazutaka YOKOTAoptions 	SC_DFLT_FONT		# compile font in
1272cc6c2ad0SPeter Wemmmakeoptions	SC_DFLT_FONT=cp850
1273e2ee2173SMarcel Moolenaaroptions 	SC_DISABLE_KDBKEY	# disable `debug' key
1274c4118fc0SKazutaka YOKOTAoptions 	SC_DISABLE_REBOOT	# disable reboot key sequence
12756e8394b8SKazutaka YOKOTAoptions 	SC_HISTORY_SIZE=200	# number of history buffer lines
12766e8394b8SKazutaka YOKOTAoptions 	SC_MOUSE_CHAR=0x3	# char code for text mode mouse cursor
12776e8394b8SKazutaka YOKOTAoptions 	SC_PIXEL_MODE		# add support for the raster text mode
127885e36760SJordan K. Hubbard
12797a88382dSKazutaka YOKOTA# The following options will let you change the default colors of syscons.
128025388b6cSBruce Evansoptions 	SC_NORM_ATTR=(FG_GREEN|BG_BLACK)
128125388b6cSBruce Evansoptions 	SC_NORM_REV_ATTR=(FG_YELLOW|BG_GREEN)
128225388b6cSBruce Evansoptions 	SC_KERNEL_CONS_ATTR=(FG_RED|BG_BLACK)
128325388b6cSBruce Evansoptions 	SC_KERNEL_CONS_REV_ATTR=(FG_BLACK|BG_RED)
12847a88382dSKazutaka YOKOTA
128578f45204SMaxim Sobolev# The following options will let you change the default behaviour of
128678f45204SMaxim Sobolev# cut-n-paste feature
128778f45204SMaxim Sobolevoptions 	SC_CUT_SPACES2TABS	# convert leading spaces into tabs
128825388b6cSBruce Evansoptions 	SC_CUT_SEPCHARS=\"x09\"	# set of characters that delimit words
128925388b6cSBruce Evans					# (default is single space - \"x20\")
129078f45204SMaxim Sobolev
12917a88382dSKazutaka YOKOTA# If you have a two button mouse, you may want to add the following option
12927a88382dSKazutaka YOKOTA# to use the right button of the mouse to paste text.
12937a88382dSKazutaka YOKOTAoptions 	SC_TWOBUTTON_MOUSE
12947a88382dSKazutaka YOKOTA
12956e8394b8SKazutaka YOKOTA# You can selectively disable features in syscons.
12966e8394b8SKazutaka YOKOTAoptions 	SC_NO_CUTPASTE
12976e8394b8SKazutaka YOKOTAoptions 	SC_NO_FONT_LOADING
12986e8394b8SKazutaka YOKOTAoptions 	SC_NO_HISTORY
12996e8394b8SKazutaka YOKOTAoptions 	SC_NO_SYSMOUSE
1300c42946c4SMitsuru IWASAKIoptions 	SC_NO_SUSPEND_VTYSWITCH
13012ac8be82SAndreas Schulz
13028a28ce0eSJohn Baldwin# `flags' for sc
13038a28ce0eSJohn Baldwin#	0x80	Put the video card in the VESA 800x600 dots, 16 color mode
13048a28ce0eSJohn Baldwin#	0x100	Probe for a keyboard device periodically if one is not present
13058a28ce0eSJohn Baldwin
13061fe04850SBruce Evans#
1307d61e6649SAlexander Langer# Optional devices:
13086a8d6623SGarrett Wollman#
13096a8d6623SGarrett Wollman
13106a8d6623SGarrett Wollman#
1311d61e6649SAlexander Langer# SCSI host adapters:
13126a8d6623SGarrett Wollman#
13137f5092f3SJohn Baldwin# adv: All Narrow SCSI bus AdvanSys controllers.
1314859244a6SJustin T. Gibbs# adw: Second Generation AdvanSys controllers including the ADV940UW.
13156e818956SDavid E. O'Brien# aha: Adaptec 154x/1535/1640
13167f5092f3SJohn Baldwin# ahb: Adaptec 174x EISA controllers
1317d61e6649SAlexander Langer# ahc: Adaptec 274x/284x/2910/293x/294x/394x/3950x/3960x/398X/4944/
1318d61e6649SAlexander Langer#      19160x/29160x, aic7770/aic78xx
1319cdd49e97SJustin T. Gibbs# ahd: Adaptec 29320/39320 Controllers.
13207f5092f3SJohn Baldwin# aic: Adaptec 6260/6360, APA-1460 (PC Card), NEC PC9801-100 (C-BUS)
1321d61e6649SAlexander Langer# amd: Support for the AMD 53C974 SCSI host adapter chip as found on devices
1322d61e6649SAlexander Langer#      such as the Tekram DC-390(T).
13236e818956SDavid E. O'Brien# bt:  Most Buslogic controllers: including BT-445, BT-54x, BT-64x, BT-74x,
13246e818956SDavid E. O'Brien#      BT-75x, BT-946, BT-948, BT-956, BT-958, SDC3211B, SDC3211F, SDC3222F
13251b946e21SScott Long# esp: NCR53c9x.  Only for SBUS hardware right now.
1326d61e6649SAlexander Langer# isp: Qlogic ISP 1020, 1040 and 1040B PCI SCSI host adapters,
1327d61e6649SAlexander Langer#      ISP 1240 Dual Ultra SCSI, ISP 1080 and 1280 (Dual) Ultra2,
1328d61e6649SAlexander Langer#      ISP 12160 Ultra3 SCSI,
1329e8a0f829SMatt Jacob#      Qlogic ISP 2100 and ISP 2200 1Gb Fibre Channel host adapters.
1330e8a0f829SMatt Jacob#      Qlogic ISP 2300 and ISP 2312 2Gb Fibre Channel host adapters.
1331ac918c84SMatt Jacob# ispfw: Firmware module for Qlogic host adapters
133264fa5108SMatt Jacob# mpt: LSI-Logic MPT/Fusion 53c1020 or 53c1030 Ultra4
133364fa5108SMatt Jacob#      or FC9x9 Fibre Channel host adapters.
1334d61e6649SAlexander Langer# ncr: NCR 53C810, 53C825 self-contained SCSI host adapters.
1335fb91fd69SGerard Roudier# sym: Symbios/Logic 53C8XX family of PCI-SCSI I/O processors:
1336fb91fd69SGerard Roudier#      53C810, 53C810A, 53C815, 53C825,  53C825A, 53C860, 53C875,
1337fb91fd69SGerard Roudier#      53C876, 53C885,  53C895, 53C895A, 53C896,  53C897, 53C1510D,
1338fb91fd69SGerard Roudier#      53C1010-33, 53C1010-66.
1339f3d92b26SOlivier Houchard# trm: Tekram DC395U/UW/F DC315U adapters.
13406e818956SDavid E. O'Brien# wds: WD7000
1341d61e6649SAlexander Langer
13426e818956SDavid E. O'Brien#
13436e818956SDavid E. O'Brien# Note that the order is important in order for Buslogic ISA/EISA cards to be
13446e818956SDavid E. O'Brien# probed correctly.
13456e818956SDavid E. O'Brien#
13466e818956SDavid E. O'Briendevice		bt
13476e818956SDavid E. O'Brienhint.bt.0.at="isa"
13486e818956SDavid E. O'Brienhint.bt.0.port="0x330"
13497f5092f3SJohn Baldwindevice		adv
13507f5092f3SJohn Baldwinhint.adv.0.at="isa"
1351c9953c3bSPeter Wemmdevice		adw
13526e818956SDavid E. O'Briendevice		aha
13536e818956SDavid E. O'Brienhint.aha.0.at="isa"
13547f5092f3SJohn Baldwindevice		aic
13557f5092f3SJohn Baldwinhint.aic.0.at="isa"
13567f5092f3SJohn Baldwindevice		ahb
1357d61e6649SAlexander Langerdevice		ahc
1358cdd49e97SJustin T. Gibbsdevice		ahd
1359d61e6649SAlexander Langerdevice		amd
13601b946e21SScott Longdevice		esp
1361d61e6649SAlexander Langerdevice		isp
13620787f2b8SMatt Jacobhint.isp.0.disable="1"
13630787f2b8SMatt Jacobhint.isp.0.role="3"
13640787f2b8SMatt Jacobhint.isp.0.prefer_iomap="1"
13650787f2b8SMatt Jacobhint.isp.0.prefer_memmap="1"
13660787f2b8SMatt Jacobhint.isp.0.fwload_disable="1"
13670787f2b8SMatt Jacobhint.isp.0.ignore_nvram="1"
13680787f2b8SMatt Jacobhint.isp.0.fullduplex="1"
13690787f2b8SMatt Jacobhint.isp.0.topology="lport"
13700787f2b8SMatt Jacobhint.isp.0.topology="nport"
13710787f2b8SMatt Jacobhint.isp.0.topology="lport-only"
13720787f2b8SMatt Jacobhint.isp.0.topology="nport-only"
13730787f2b8SMatt Jacob# we can't get u_int64_t types, nor can we get strings if it's got
13740787f2b8SMatt Jacob# a leading 0x, hence this silly dodge.
13750787f2b8SMatt Jacobhint.isp.0.portwnn="w50000000aaaa0000"
13760787f2b8SMatt Jacobhint.isp.0.nodewnn="w50000000aaaa0001"
1377d61e6649SAlexander Langerdevice		ispfw
137864fa5108SMatt Jacobdevice		mpt
1379d61e6649SAlexander Langerdevice		ncr
1380d61e6649SAlexander Langerdevice		sym
1381f3d92b26SOlivier Houcharddevice		trm
13826e818956SDavid E. O'Briendevice		wds
13836e818956SDavid E. O'Brienhint.wds.0.at="isa"
13846e818956SDavid E. O'Brienhint.wds.0.port="0x350"
13856e818956SDavid E. O'Brienhint.wds.0.irq="11"
13866e818956SDavid E. O'Brienhint.wds.0.drq="6"
1387d61e6649SAlexander Langer
1388d61e6649SAlexander Langer# The aic7xxx driver will attempt to use memory mapped I/O for all PCI
1389d61e6649SAlexander Langer# controllers that have it configured only if this option is set. Unfortunately,
1390d61e6649SAlexander Langer# this doesn't work on some motherboards, which prevents it from being the
1391d61e6649SAlexander Langer# default.
1392d61e6649SAlexander Langeroptions 	AHC_ALLOW_MEMIO
1393d61e6649SAlexander Langer
1394fac70739SJeroen Ruigrok van der Werven# Dump the contents of the ahc controller configuration PROM.
1395fac70739SJeroen Ruigrok van der Wervenoptions 	AHC_DUMP_EEPROM
1396fac70739SJeroen Ruigrok van der Werven
1397fac70739SJeroen Ruigrok van der Werven# Bitmap of units to enable targetmode operations.
1398fac70739SJeroen Ruigrok van der Wervenoptions 	AHC_TMODE_ENABLE
1399fac70739SJeroen Ruigrok van der Werven
1400662d3818SScott Long# Compile in Aic7xxx Debugging code.
1401662d3818SScott Longoptions 	AHC_DEBUG
1402662d3818SScott Long
1403662d3818SScott Long# Aic7xxx driver debugging options. See sys/dev/aic7xxx/aic7xxx.h
1404662d3818SScott Longoptions 	AHC_DEBUG_OPTS
1405662d3818SScott Long
1406f8f8803bSBruce Evans# Print register bitfields in debug output.  Adds ~128k to driver
1407f8f8803bSBruce Evans# See ahc(4).
1408662d3818SScott Longoptions 	AHC_REG_PRETTY_PRINT
1409662d3818SScott Long
1410cdd49e97SJustin T. Gibbs# Compile in aic79xx debugging code.
1411cdd49e97SJustin T. Gibbsoptions 	AHD_DEBUG
1412cdd49e97SJustin T. Gibbs
1413f8f8803bSBruce Evans# Aic79xx driver debugging options.  Adds ~215k to driver.  See ahd(4).
1414cdd49e97SJustin T. Gibbsoptions 	AHD_DEBUG_OPTS=0xFFFFFFFF
1415cdd49e97SJustin T. Gibbs
141643e9d8a3SScott Long# Print human-readable register definitions when debugging
141743e9d8a3SScott Longoptions 	AHD_REG_PRETTY_PRINT
141843e9d8a3SScott Long
1419662d3818SScott Long# Bitmap of units to enable targetmode operations.
1420662d3818SScott Longoptions 	AHD_TMODE_ENABLE
1421662d3818SScott Long
1422d61e6649SAlexander Langer# The adw driver will attempt to use memory mapped I/O for all PCI
1423d61e6649SAlexander Langer# controllers that have it configured only if this option is set.
1424d61e6649SAlexander Langeroptions 	ADW_ALLOW_MEMIO
1425d61e6649SAlexander Langer
1426d61e6649SAlexander Langer# Options used in dev/isp/ (Qlogic SCSI/FC driver).
1427d61e6649SAlexander Langer#
1428d61e6649SAlexander Langer#	ISP_TARGET_MODE		-	enable target mode operation
1429d61e6649SAlexander Langer#
143064fa5108SMatt Jacoboptions 	ISP_TARGET_MODE=1
1431d61e6649SAlexander Langer
1432d61e6649SAlexander Langer# Options used in dev/sym/ (Symbios SCSI driver).
1433d61e6649SAlexander Langer#options 	SYM_SETUP_LP_PROBE_MAP	#-Low Priority Probe Map (bits)
1434d61e6649SAlexander Langer					# Allows the ncr to take precedence
1435d61e6649SAlexander Langer					# 1 (1<<0) -> 810a, 860
1436d61e6649SAlexander Langer					# 2 (1<<1) -> 825a, 875, 885, 895
1437d61e6649SAlexander Langer					# 4 (1<<2) -> 895a, 896, 1510d
1438d61e6649SAlexander Langer#options 	SYM_SETUP_SCSI_DIFF	#-HVD support for 825a, 875, 885
1439d61e6649SAlexander Langer					# disabled:0 (default), enabled:1
1440d61e6649SAlexander Langer#options 	SYM_SETUP_PCI_PARITY	#-PCI parity checking
1441d61e6649SAlexander Langer					# disabled:0, enabled:1 (default)
1442d61e6649SAlexander Langer#options 	SYM_SETUP_MAX_LUN	#-Number of LUNs supported
1443d61e6649SAlexander Langer					# default:8, range:[1..64]
14446a8d6623SGarrett Wollman
14456e818956SDavid E. O'Brien# The 'asr' driver provides support for current DPT/Adaptec SCSI RAID
14466e818956SDavid E. O'Brien# controllers (SmartRAID V and VI and later).
14476e818956SDavid E. O'Brien# These controllers require the CAM infrastructure.
14486e818956SDavid E. O'Brien#
14496e818956SDavid E. O'Briendevice		asr
14506e818956SDavid E. O'Brien
14516e818956SDavid E. O'Brien# The 'dpt' driver provides support for old DPT controllers (http://www.dpt.com/).
14526e818956SDavid E. O'Brien# These have hardware RAID-{0,1,5} support, and do multi-initiator I/O.
14536e818956SDavid E. O'Brien# The DPT controllers are commonly re-licensed under other brand-names -
14546e818956SDavid E. O'Brien# some controllers by Olivetti, Dec, HP, AT&T, SNI, AST, Alphatronic, NEC and
14556e818956SDavid E. O'Brien# Compaq are actually DPT controllers.
14566e818956SDavid E. O'Brien#
14576e818956SDavid E. O'Brien# See src/sys/dev/dpt for debugging and other subtle options.
14586e818956SDavid E. O'Brien#   DPT_MEASURE_PERFORMANCE Enables a set of (semi)invasive metrics. Various
14596e818956SDavid E. O'Brien#                           instruments are enabled.  The tools in
14606e818956SDavid E. O'Brien#                           /usr/sbin/dpt_* assume these to be enabled.
14616e818956SDavid E. O'Brien#   DPT_HANDLE_TIMEOUTS     Normally device timeouts are handled by the DPT.
14626e818956SDavid E. O'Brien#                           If you ant the driver to handle timeouts, enable
14636e818956SDavid E. O'Brien#                           this option.  If your system is very busy, this
14646e818956SDavid E. O'Brien#                           option will create more trouble than solve.
14656e818956SDavid E. O'Brien#   DPT_TIMEOUT_FACTOR      Used to compute the excessive amount of time to
14666e818956SDavid E. O'Brien#                           wait when timing out with the above option.
14676e818956SDavid E. O'Brien#  DPT_DEBUG_xxxx           These are controllable from sys/dev/dpt/dpt.h
14686e818956SDavid E. O'Brien#  DPT_LOST_IRQ             When enabled, will try, once per second, to catch
14696e818956SDavid E. O'Brien#                           any interrupt that got lost.  Seems to help in some
14706e818956SDavid E. O'Brien#                           DPT-firmware/Motherboard combinations.  Minimal
14716e818956SDavid E. O'Brien#                           cost, great benefit.
14726e818956SDavid E. O'Brien#  DPT_RESET_HBA            Make "reset" actually reset the controller
14736e818956SDavid E. O'Brien#                           instead of fudging it.  Only enable this if you
14746e818956SDavid E. O'Brien#			    are 100% certain you need it.
14756e818956SDavid E. O'Brien
14766e818956SDavid E. O'Briendevice		dpt
14776e818956SDavid E. O'Brien
14786e818956SDavid E. O'Brien# DPT options
14796e818956SDavid E. O'Brien#!CAM# options 	DPT_MEASURE_PERFORMANCE
14806e818956SDavid E. O'Brien#!CAM# options 	DPT_HANDLE_TIMEOUTS
14816e818956SDavid E. O'Brienoptions 	DPT_TIMEOUT_FACTOR=4
14826e818956SDavid E. O'Brienoptions 	DPT_LOST_IRQ
14836e818956SDavid E. O'Brienoptions 	DPT_RESET_HBA
14846e818956SDavid E. O'Brien
14856e818956SDavid E. O'Brien#
14866e818956SDavid E. O'Brien# Compaq "CISS" RAID controllers (SmartRAID 5* series)
14876e818956SDavid E. O'Brien# These controllers have a SCSI-like interface, and require the
14886e818956SDavid E. O'Brien# CAM infrastructure.
14896e818956SDavid E. O'Brien#
14906e818956SDavid E. O'Briendevice		ciss
14916e818956SDavid E. O'Brien
14926e818956SDavid E. O'Brien#
14936e818956SDavid E. O'Brien# Intel Integrated RAID controllers.
14946e818956SDavid E. O'Brien# This driver was developed and is maintained by Intel.  Contacts
14956e818956SDavid E. O'Brien# at Intel for this driver are
14966e818956SDavid E. O'Brien# "Kannanthanam, Boji T" <boji.t.kannanthanam@intel.com> and
14976e818956SDavid E. O'Brien# "Leubner, Achim" <achim.leubner@intel.com>.
14986e818956SDavid E. O'Brien#
14996e818956SDavid E. O'Briendevice		iir
15006e818956SDavid E. O'Brien
15016e818956SDavid E. O'Brien#
15026e818956SDavid E. O'Brien# Mylex AcceleRAID and eXtremeRAID controllers with v6 and later
15036e818956SDavid E. O'Brien# firmware.  These controllers have a SCSI-like interface, and require
15046e818956SDavid E. O'Brien# the CAM infrastructure.
15056e818956SDavid E. O'Brien#
15066e818956SDavid E. O'Briendevice		mly
15076e818956SDavid E. O'Brien
15086e818956SDavid E. O'Brien#
15096e818956SDavid E. O'Brien# Compaq Smart RAID, Mylex DAC960 and AMI MegaRAID controllers.  Only
15106e818956SDavid E. O'Brien# one entry is needed; the code will find and configure all supported
15116e818956SDavid E. O'Brien# controllers.
15126e818956SDavid E. O'Brien#
15136e818956SDavid E. O'Briendevice		ida		# Compaq Smart RAID
15146e818956SDavid E. O'Briendevice		mlx		# Mylex DAC960
15156e818956SDavid E. O'Briendevice		amr		# AMI MegaRAID
15166e818956SDavid E. O'Brien
15176e818956SDavid E. O'Brien#
15186e818956SDavid E. O'Brien# 3ware ATA RAID
15196e818956SDavid E. O'Brien#
15206e818956SDavid E. O'Briendevice		twe		# 3ware ATA RAID
15216e818956SDavid E. O'Brien
152290d3341eSPeter Wemm#
15236d04301dSAlexander Langer# The 'ATA' driver supports all ATA and ATAPI devices, including PC Card
15246d04301dSAlexander Langer# devices. You only need one "device ata" for it to find all
15256d04301dSAlexander Langer# PCI and PC Card ATA/ATAPI devices on modern machines.
1526c9953c3bSPeter Wemmdevice		ata
1527c9953c3bSPeter Wemmdevice		atadisk		# ATA disk drives
1528ce7e8badSAlex Dupredevice		ataraid		# ATA RAID drives
1529c9953c3bSPeter Wemmdevice		atapicd		# ATAPI CDROM drives
1530c9953c3bSPeter Wemmdevice		atapifd		# ATAPI floppy drives
1531c9953c3bSPeter Wemmdevice		atapist		# ATAPI tape drives
1532c91a27d2SScott Longdevice		atapicam	# emulate ATAPI devices as SCSI ditto via CAM
1533fd4b4eccSSøren Schmidt				# needs CAM to be present (scbus & pass)
15348b89ef0aSSøren Schmidt#
15356d04301dSAlexander Langer# For older non-PCI, non-PnPBIOS systems, these are the hints lines to add:
15366d04301dSAlexander Langerhint.ata.0.at="isa"
15376d04301dSAlexander Langerhint.ata.0.port="0x1f0"
15386d04301dSAlexander Langerhint.ata.0.irq="14"
15396d04301dSAlexander Langerhint.ata.1.at="isa"
15406d04301dSAlexander Langerhint.ata.1.port="0x170"
15416d04301dSAlexander Langerhint.ata.1.irq="15"
15426d04301dSAlexander Langer
15436d04301dSAlexander Langer#
1544000da71aSSøren Schmidt# The following options are valid on the ATA driver:
1545000da71aSSøren Schmidt#
1546000da71aSSøren Schmidt# ATA_STATIC_ID:	controller numbering is static ie depends on location
154774d8e840SSøren Schmidt#			else the device numbers are dynamically allocated.
154874d8e840SSøren Schmidt
154974d8e840SSøren Schmidtoptions 	ATA_STATIC_ID
155074d8e840SSøren Schmidt
15518b89ef0aSSøren Schmidt#
15526d04301dSAlexander Langer# Standard floppy disk controllers and floppy tapes, supports
15536d04301dSAlexander Langer# the Y-E DATA External FDD (PC Card)
15546a8d6623SGarrett Wollman#
1555f71c01ccSPeter Wemmdevice		fdc
1556f71c01ccSPeter Wemmhint.fdc.0.at="isa"
1557f71c01ccSPeter Wemmhint.fdc.0.port="0x3F0"
1558f71c01ccSPeter Wemmhint.fdc.0.irq="6"
1559f71c01ccSPeter Wemmhint.fdc.0.drq="2"
156085827d9cSJoerg Wunsch#
1561d2fb4892SJoerg Wunsch# FDC_DEBUG enables floppy debugging.  Since the debug output is huge, you
1562d2fb4892SJoerg Wunsch# gotta turn it actually on by setting the variable fd_debug with DDB,
1563d2fb4892SJoerg Wunsch# however.
1564d2fb4892SJoerg Wunschoptions 	FDC_DEBUG
1565d2fb4892SJoerg Wunsch#
1566f71c01ccSPeter Wemm# Activate this line if you happen to have an Insight floppy tape.
1567f71c01ccSPeter Wemm# Probing them proved to be dangerous for people with floppy disks only,
1568f71c01ccSPeter Wemm# so it's "hidden" behind a flag:
1569f71c01ccSPeter Wemm#hint.fdc.0.flags="1"
157085827d9cSJoerg Wunsch
1571f71c01ccSPeter Wemm# Specify floppy devices
1572f71c01ccSPeter Wemmhint.fd.0.at="fdc0"
1573f71c01ccSPeter Wemmhint.fd.0.drive="0"
1574f71c01ccSPeter Wemmhint.fd.1.at="fdc0"
1575f71c01ccSPeter Wemmhint.fd.1.drive="1"
157685827d9cSJoerg Wunsch
15776a8d6623SGarrett Wollman#
15786d04301dSAlexander Langer# sio: serial ports (see sio(4)), including support for various
15796d04301dSAlexander Langer#      PC Card devices, such as Modem and NICs (see etc/defaults/pccard.conf)
1580c8956b36SMarcel Moolenaar#
1581f71c01ccSPeter Wemmdevice		sio
1582f71c01ccSPeter Wemmhint.sio.0.at="isa"
1583f71c01ccSPeter Wemmhint.sio.0.port="0x3F8"
1584f71c01ccSPeter Wemmhint.sio.0.flags="0x10"
1585f71c01ccSPeter Wemmhint.sio.0.irq="4"
15869546766aSBruce Evans
1587501ef98fSMarcel Moolenaar# Options for sio:
1588c8956b36SMarcel Moolenaaroptions 	COM_ESP			# Code for Hayes ESP.
1589c8956b36SMarcel Moolenaaroptions 	COM_MULTIPORT		# Code for some cards with shared IRQs.
1590c8956b36SMarcel Moolenaaroptions 	CONSPEED=115200		# Speed for serial console
1591c8956b36SMarcel Moolenaar					# (default 9600).
1592501ef98fSMarcel Moolenaar
1593501ef98fSMarcel Moolenaar# `flags' specific to sio(4).  See below for flags used by both sio(4) and
1594501ef98fSMarcel Moolenaar# uart(4).
1595501ef98fSMarcel Moolenaar#	0x20	force this unit to be the console (unless there is another
1596501ef98fSMarcel Moolenaar#		higher priority console).  This replaces the COMCONSOLE option.
1597501ef98fSMarcel Moolenaar#	0x40	reserve this unit for low level console operations.  Do not
1598501ef98fSMarcel Moolenaar#		access the device in any normal way.
1599501ef98fSMarcel Moolenaar# PnP `flags'
1600501ef98fSMarcel Moolenaar#	0x1	disable probing of this device.  Used to prevent your modem
1601501ef98fSMarcel Moolenaar#		from being attached as a PnP modem.
1602501ef98fSMarcel Moolenaar# Other flags for sio that aren't documented in the man page.
1603501ef98fSMarcel Moolenaar#	0x20000	enable hardware RTS/CTS and larger FIFOs.  Only works for
1604501ef98fSMarcel Moolenaar#		ST16650A-compatible UARTs.
1605501ef98fSMarcel Moolenaar
16069546766aSBruce Evans#
1607501ef98fSMarcel Moolenaar# uart: newbusified driver for serial interfaces.  It consolidates the sio(4),
1608501ef98fSMarcel Moolenaar#	sab(4) and zs(4) drivers.
1609c8956b36SMarcel Moolenaar#
1610501ef98fSMarcel Moolenaardevice		uart
1611501ef98fSMarcel Moolenaar
16128194412bSMarcel Moolenaar# Options for uart(4)
16138194412bSMarcel Moolenaaroptions 	UART_PPS_ON_CTS		# Do time pulse capturing using CTS
16148194412bSMarcel Moolenaar					# instead of DCD.
16158194412bSMarcel Moolenaar
1616501ef98fSMarcel Moolenaar# The following hint should only be used for pure ISA devices.  It is not
1617501ef98fSMarcel Moolenaar# needed otherwise.  Use of hints is strongly discouraged.
1618501ef98fSMarcel Moolenaarhint.uart.0.at="isa"
1619501ef98fSMarcel Moolenaar
1620c8956b36SMarcel Moolenaar# The following 3 hints are used when the UART is a system device (i.e., a
1621c8956b36SMarcel Moolenaar# console or debug port), but only on platforms that don't have any other
1622c8956b36SMarcel Moolenaar# means to pass the information to the kernel.  The unit number of the hint
1623c8956b36SMarcel Moolenaar# is only used to bundle the hints together.  There is no relation to the
1624c8956b36SMarcel Moolenaar# unit number of the probed UART.
1625501ef98fSMarcel Moolenaarhint.uart.0.port="0x3f8"
1626501ef98fSMarcel Moolenaarhint.uart.0.flags="0x10"
1627501ef98fSMarcel Moolenaarhint.uart.0.baud="115200"
1628501ef98fSMarcel Moolenaar
1629501ef98fSMarcel Moolenaar# `flags' for serial drivers that support consoles like sio(4) and uart(4):
1630c8956b36SMarcel Moolenaar#	0x10	enable console support for this unit.  Other console flags
1631c8956b36SMarcel Moolenaar#		(if applicable) are ignored unless this is set.  Enabling
1632c8956b36SMarcel Moolenaar#		console support does not make the unit the preferred console.
1633c8956b36SMarcel Moolenaar#		Boot with -h or set boot_serial=YES in the loader.  For sio(4)
1634c8956b36SMarcel Moolenaar#		specifically, the 0x20 flag can also be set (see above).
1635c8956b36SMarcel Moolenaar#		Currently, at most one unit can have console support; the
1636c8956b36SMarcel Moolenaar#		first one (in config file order) with this flag set is
1637c8956b36SMarcel Moolenaar#		preferred.  Setting this flag for sio0 gives the old behaviour.
1638c8956b36SMarcel Moolenaar#	0x80	use this port for serial line gdb support in ddb.  Also known
1639c8956b36SMarcel Moolenaar#		as debug port.
16409546766aSBruce Evans#
16419546766aSBruce Evans
1642501ef98fSMarcel Moolenaar# Options for serial drivers that support consoles:
1643c8956b36SMarcel Moolenaaroptions 	BREAK_TO_DEBUGGER	# A BREAK on a serial console goes to
1644c8956b36SMarcel Moolenaar					# ddb, if available.
16456a8d6623SGarrett Wollman
164626b6ea69SPaul Saab# Solaris implements a new BREAK which is initiated by a character
164726b6ea69SPaul Saab# sequence CR ~ ^b which is similar to a familiar pattern used on
164826b6ea69SPaul Saab# Sun servers by the Remote Console.
164926b6ea69SPaul Saaboptions 	ALT_BREAK_TO_DEBUGGER
165026b6ea69SPaul Saab
16519c564b6cSJohn Hay# PCI Universal Communications driver
16529c564b6cSJohn Hay# Supports various single and multi port PCI serial cards. Maybe later
16539c564b6cSJohn Hay# also the parallel ports on combination serial/parallel cards. New cards
1654093d7296SChris D. Faulhaber# can be added in src/sys/dev/puc/pucdata.c.
16559c564b6cSJohn Hay#
16569c564b6cSJohn Hay# If the PUC_FASTINTR option is used the driver will try to use fast
16579c564b6cSJohn Hay# interrupts. The card must then be the only user of that interrupt.
16589c564b6cSJohn Hay# Interrupts cannot be shared when using PUC_FASTINTR.
16599c564b6cSJohn Haydevice		puc
16609c564b6cSJohn Hayoptions 	PUC_FASTINTR
16619c564b6cSJohn Hay
16626a8d6623SGarrett Wollman#
1663d61e6649SAlexander Langer# Network interfaces:
16646a8d6623SGarrett Wollman#
1665d61e6649SAlexander Langer# MII bus support is required for some PCI 10/100 ethernet NICs,
1666d61e6649SAlexander Langer# namely those which use MII-compliant transceivers or implement
16673c7c6c12SMike Pritchard# transceiver control interfaces that operate like an MII. Adding
1668d61e6649SAlexander Langer# "device miibus0" to the kernel config pulls in support for
1669d61e6649SAlexander Langer# the generic miibus API and all of the PHY drivers, including a
1670d61e6649SAlexander Langer# generic one for PHYs that aren't specifically handled by an
1671d61e6649SAlexander Langer# individual driver.
1672d61e6649SAlexander Langerdevice		miibus
1673d61e6649SAlexander Langer
16747f5092f3SJohn Baldwin# an:   Aironet 4500/4800 802.11 wireless adapters. Supports the PCMCIA,
16757f5092f3SJohn Baldwin#       PCI and ISA varieties.
16767f5092f3SJohn Baldwin# awi:  Support for IEEE 802.11 PC Card devices using the AMD Am79C930 and
16777f5092f3SJohn Baldwin#       Harris (Intersil) Chipset with PCnetMobile firmware by AMD.
167895d67482SBill Paul# bge:	Support for gigabit ethernet adapters based on the Broadcom
1679586d7c2eSJohn Polstra#	BCM570x family of controllers, including the 3Com 3c996-T,
1680586d7c2eSJohn Polstra#	the Netgear GA302T, the SysKonnect SK-9D21 and SK-9D41, and
1681586d7c2eSJohn Polstra#	the embedded gigE NICs on Dell PowerEdge 2550 servers.
16827f5092f3SJohn Baldwin# cm:	Arcnet SMC COM90c26 / SMC COM90c56
16837f5092f3SJohn Baldwin#	(and SMC COM90c66 in '56 compatibility mode) adapters.
16847f5092f3SJohn Baldwin# cnw:  Xircom CNW/Netware Airsurfer PC Card adapter
16857f5092f3SJohn Baldwin# cs:   IBM Etherjet and other Crystal Semi CS89x0-based adapters
1686d61e6649SAlexander Langer# dc:   Support for PCI fast ethernet adapters based on the DEC/Intel 21143
1687d61e6649SAlexander Langer#       and various workalikes including:
1688d61e6649SAlexander Langer#       the ADMtek AL981 Comet and AN985 Centaur, the ASIX Electronics
1689d61e6649SAlexander Langer#       AX88140A and AX88141, the Davicom DM9100 and DM9102, the Lite-On
1690d61e6649SAlexander Langer#       82c168 and 82c169 PNIC, the Lite-On/Macronix LC82C115 PNIC II
1691d61e6649SAlexander Langer#       and the Macronix 98713/98713A/98715/98715A/98725 PMAC. This driver
1692d61e6649SAlexander Langer#       replaces the old al, ax, dm, pn and mx drivers.  List of brands:
1693d61e6649SAlexander Langer#       Digital DE500-BA, Kingston KNE100TX, D-Link DFE-570TX, SOHOware SFA110,
1694d61e6649SAlexander Langer#       SVEC PN102-TX, CNet Pro110B, 120A, and 120B, Compex RL100-TX,
1695d61e6649SAlexander Langer#       LinkSys LNE100TX, LNE100TX V2.0, Jaton XpressNet, Alfa Inc GFC2204,
1696d61e6649SAlexander Langer#       KNE110TX.
1697d61e6649SAlexander Langer# de:   Digital Equipment DC21040
1698a59716d2SPrafulla Deuskar# em:   Intel Pro/1000 Gigabit Ethernet 82542, 82543, 82544 based adapters.
16997f5092f3SJohn Baldwin# ep:   3Com 3C509, 3C529, 3C556, 3C562D, 3C563D, 3C572, 3C574X, 3C579, 3C589
17007f5092f3SJohn Baldwin#       and PC Card devices using these chipsets.
17017f5092f3SJohn Baldwin# ex:   Intel EtherExpress Pro/10 and other i82595-based adapters,
17027f5092f3SJohn Baldwin#       Olicom Ethernet PC Card devices.
17037f5092f3SJohn Baldwin# fe:   Fujitsu MB86960A/MB86965A Ethernet
17047f5092f3SJohn Baldwin# fea:  DEC DEFEA EISA FDDI adapter
1705d61e6649SAlexander Langer# fpa:  Support for the Digital DEFPA PCI FDDI. `device fddi' is also needed.
1706d61e6649SAlexander Langer# fxp:  Intel EtherExpress Pro/100B
1707cf87044eSMatt Jacob#	(hint of prefer_iomap can be done to prefer I/O instead of Mem mapping)
170852c07e1cSMarius Strobl# hme:  Sun HME (Happy Meal Ethernet)
1709c678bc4fSBill Paul# lge:	Support for PCI gigabit ethernet adapters based on the Level 1
1710c678bc4fSBill Paul#	LXT1001 NetCellerator chipset. This includes the D-Link DGE-500SX,
1711c678bc4fSBill Paul#	SMC TigerCard 1000 (SMC9462SX), and some Addtron cards.
1712d3d67116SMaxim Sobolev# my:	Myson Fast Ethernet (MTD80X, MTD89X)
1713ce4946daSBill Paul# nge:	Support for PCI gigabit ethernet adapters based on the National
1714ce4946daSBill Paul#	Semiconductor DP83820 and DP83821 chipset. This includes the
1715ce4946daSBill Paul#	SMC EZ Card 1000 (SMC9462TX), D-Link DGE-500T, Asante FriendlyNet
171601019292SBill Paul#	GigaNIX 1000TA and 1000TPC, the Addtron AEG320T, the LinkSys
1717660e0297SBill Paul#	EG1032 and EG1064, the Surecom EP-320G-TX and the Netgear GA622T.
171841f7d2d5SBill Paul# pcn:	Support for PCI fast ethernet adapters based on the AMD Am79c97x
171941f7d2d5SBill Paul#	chipsets, including the PCnet/FAST, PCnet/FAST+, PCnet/PRO and
172041f7d2d5SBill Paul#	PCnet/Home. These were previously handled by the lnc driver (and
172141f7d2d5SBill Paul#	still will be if you leave this driver out of the kernel).
1722d61e6649SAlexander Langer# rl:   Support for PCI fast ethernet adapters based on the RealTek 8129/8139
1723d61e6649SAlexander Langer#       chipset.  Note that the RealTek driver defaults to using programmed
1724d61e6649SAlexander Langer#       I/O to do register accesses because memory mapped mode seems to cause
1725d61e6649SAlexander Langer#       severe lockups on SMP hardware.  This driver also supports the
1726d61e6649SAlexander Langer#       Accton EN1207D `Cheetah' adapter, which uses a chip called
1727d61e6649SAlexander Langer#       the MPX 5030/5038, which is either a RealTek in disguise or a
1728d61e6649SAlexander Langer#       RealTek workalike.  Note that the D-Link DFE-530TX+ uses the RealTek
1729d61e6649SAlexander Langer#       chipset and is supported by this driver, not the 'vr' driver.
1730d61e6649SAlexander Langer# sf:   Support for Adaptec Duralink PCI fast ethernet adapters based on the
1731d61e6649SAlexander Langer#       Adaptec AIC-6915 "starfire" controller.
1732d61e6649SAlexander Langer#       This includes dual and quad port cards, as well as one 100baseFX card.
1733d61e6649SAlexander Langer#       Most of these are 64-bit PCI devices, except for one single port
1734d61e6649SAlexander Langer#       card which is 32-bit.
1735b2ca5572SAlexander Langer# sis:  Support for NICs based on the Silicon Integrated Systems SiS 900,
1736b2ca5572SAlexander Langer#       SiS 7016 and NS DP83815 PCI fast ethernet controller chips.
17377d0de413SMax Khon# sbsh:	Support for Granch SBNI16 SHDSL modem PCI adapters
1738d61e6649SAlexander Langer# sk:   Support for the SysKonnect SK-984x series PCI gigabit ethernet NICs.
1739d61e6649SAlexander Langer#       This includes the SK-9841 and SK-9842 single port cards (single mode
1740d61e6649SAlexander Langer#       and multimode fiber) and the SK-9843 and SK-9844 dual port cards
1741d61e6649SAlexander Langer#       (also single mode and multimode).
1742d61e6649SAlexander Langer#       The driver will autodetect the number of ports on the card and
1743d61e6649SAlexander Langer#       attach each one as a separate network interface.
17447f5092f3SJohn Baldwin# sn:   Support for ISA and PC Card Ethernet devices using the
17457f5092f3SJohn Baldwin#       SMC91C90/92/94/95 chips.
1746d61e6649SAlexander Langer# ste:  Sundance Technologies ST201 PCI fast ethernet controller, includes
1747d61e6649SAlexander Langer#       the D-Link DFE-550TX.
1748d61e6649SAlexander Langer# ti:   Support for PCI gigabit ethernet NICs based on the Alteon Networks
1749d61e6649SAlexander Langer#       Tigon 1 and Tigon 2 chipsets.  This includes the Alteon AceNIC, the
1750d61e6649SAlexander Langer#       3Com 3c985, the Netgear GA620 and various others.  Note that you will
1751d61e6649SAlexander Langer#       probably want to bump up NMBCLUSTERS a lot to use this driver.
1752d61e6649SAlexander Langer# tl:   Support for the Texas Instruments TNETE100 series 'ThunderLAN'
1753d61e6649SAlexander Langer#       cards and integrated ethernet controllers.  This includes several
1754d61e6649SAlexander Langer#       Compaq Netelligent 10/100 cards and the built-in ethernet controllers
1755d61e6649SAlexander Langer#       in several Compaq Prosignia, Proliant and Deskpro systems.  It also
1756d61e6649SAlexander Langer#       supports several Olicom 10Mbps and 10/100 boards.
17573c7c6c12SMike Pritchard# tx:   SMC 9432 TX, BTX and FTX cards. (SMC EtherPower II series)
1758362c5c1eSBill Paul# txp:	Support for 3Com 3cR990 cards with the "Typhoon" chipset
1759d61e6649SAlexander Langer# vr:   Support for various fast ethernet adapters based on the VIA
1760d61e6649SAlexander Langer#       Technologies VT3043 `Rhine I' and VT86C100A `Rhine II' chips,
1761d61e6649SAlexander Langer#       including the D-Link DFE530TX (see 'rl' for DFE530TX+), the Hawking
1762d61e6649SAlexander Langer#       Technologies PN102TX, and the AOpen/Acer ALN-320.
1763d61e6649SAlexander Langer# vx:   3Com 3C590 and 3C595
1764d61e6649SAlexander Langer# wb:   Support for fast ethernet adapters based on the Winbond W89C840F chip.
1765d61e6649SAlexander Langer#       Note: this is not the same as the Winbond W89C940F, which is a
1766d61e6649SAlexander Langer#       NE2000 clone.
17677f5092f3SJohn Baldwin# wi:   Lucent WaveLAN/IEEE 802.11 PCMCIA adapters. Note: this supports both
17687f5092f3SJohn Baldwin#       the PCMCIA and ISA cards: the ISA card is really a PCMCIA to ISA
17697f5092f3SJohn Baldwin#       bridge with a PCMCIA adapter plugged into it.
17707f5092f3SJohn Baldwin# xe:   Xircom/Intel EtherExpress Pro100/16 PC Card ethernet controller,
17717f5092f3SJohn Baldwin#       Accton Fast EtherCard-16, Compaq Netelligent 10/100 PC Card,
17727f5092f3SJohn Baldwin#       Toshiba 10/100 Ethernet PC Card, Xircom 16-bit Ethernet + Modem 56
1773d61e6649SAlexander Langer# xl:   Support for the 3Com 3c900, 3c905, 3c905B and 3c905C (Fast)
1774d61e6649SAlexander Langer#       Etherlink XL cards and integrated controllers.  This includes the
1775d61e6649SAlexander Langer#       integrated 3c905B-TX chips in certain Dell Optiplex and Dell
1776d61e6649SAlexander Langer#       Precision desktop machines and the integrated 3c905-TX chips
1777d61e6649SAlexander Langer#       in Dell Latitude laptop docking stations.
1778d61e6649SAlexander Langer#       Also supported: 3Com 3c980(C)-TX, 3Com 3cSOHO100-TX, 3Com 3c450-TX
1779d61e6649SAlexander Langer
17807f5092f3SJohn Baldwin# Order for ISA/EISA devices is important here
17817f5092f3SJohn Baldwin
17827f5092f3SJohn Baldwindevice		cm
17837f5092f3SJohn Baldwinhint.cm.0.at="isa"
17847f5092f3SJohn Baldwinhint.cm.0.port="0x2e0"
17857f5092f3SJohn Baldwinhint.cm.0.irq="9"
17867f5092f3SJohn Baldwinhint.cm.0.maddr="0xdc000"
17877f5092f3SJohn Baldwindevice		cs
17887f5092f3SJohn Baldwinhint.cs.0.at="isa"
17897f5092f3SJohn Baldwinhint.cs.0.port="0x300"
17907f5092f3SJohn Baldwindevice		ep
17917f5092f3SJohn Baldwindevice		ex
1792c06a3350SPeter Wemmdevice		fe
17937f5092f3SJohn Baldwinhint.fe.0.at="isa"
17947f5092f3SJohn Baldwinhint.fe.0.port="0x300"
17957f5092f3SJohn Baldwindevice		fea
17967f5092f3SJohn Baldwindevice		sn
17977f5092f3SJohn Baldwinhint.sn.0.at="isa"
17987f5092f3SJohn Baldwinhint.sn.0.port="0x300"
17997f5092f3SJohn Baldwinhint.sn.0.irq="10"
18007f5092f3SJohn Baldwindevice		an
18017f5092f3SJohn Baldwindevice		awi
18027f5092f3SJohn Baldwindevice		cnw
18037f5092f3SJohn Baldwindevice		wi
18047f5092f3SJohn Baldwindevice		xe
18057f5092f3SJohn Baldwin
1806d61e6649SAlexander Langer# PCI Ethernet NICs that use the common MII bus controller code.
1807d61e6649SAlexander Langerdevice		dc		# DEC/Intel 21143 and various workalikes
18084664a8d5SJonathan Lemondevice		fxp		# Intel EtherExpress PRO/100B (82557, 82558)
18094664a8d5SJonathan Lemonhint.fxp.0.prefer_iomap="0"
181052c07e1cSMarius Strobldevice		hme		# Sun HME (Happy Meal Ethernet)
1811d3d67116SMaxim Sobolevdevice		my		# Myson Fast Ethernet (MTD80X, MTD89X)
1812d61e6649SAlexander Langerdevice		rl		# RealTek 8129/8139
18132e1b1231SDima Dorfmandevice		pcn		# AMD Am79C97x PCI 10/100 NICs
1814d61e6649SAlexander Langerdevice		sf		# Adaptec AIC-6915 (``Starfire'')
18157d0de413SMax Khondevice		sbsh		# Granch SBNI16 SHDSL modem
1816d61e6649SAlexander Langerdevice		sis		# Silicon Integrated Systems SiS 900/SiS 7016
1817d61e6649SAlexander Langerdevice		ste		# Sundance ST201 (D-Link DFE-550TX)
1818d61e6649SAlexander Langerdevice		tl		# Texas Instruments ThunderLAN
1819eed59f52SSemen Ustimenkodevice		tx		# SMC EtherPower II (83c170 ``EPIC'')
1820d61e6649SAlexander Langerdevice		vr		# VIA Rhine, Rhine II
1821d61e6649SAlexander Langerdevice		wb		# Winbond W89C840F
1822d61e6649SAlexander Langerdevice		xl		# 3Com 3c90x (``Boomerang'', ``Cyclone'')
1823d61e6649SAlexander Langer
1824d61e6649SAlexander Langer# PCI Ethernet NICs.
1825d61e6649SAlexander Langerdevice		de		# DEC/Intel DC21x4x (``Tulip'')
182695d67482SBill Pauldevice		txp		# 3Com 3cR990 (``Typhoon'')
1827c7ba4194SWarner Loshdevice		vx		# 3Com 3c590, 3c595 (``Vortex'')
1828d61e6649SAlexander Langer
1829d61e6649SAlexander Langer# PCI Gigabit & FDDI NICs.
183095d67482SBill Pauldevice		bge
1831c678bc4fSBill Pauldevice		lge
1832ce4946daSBill Pauldevice		nge
1833d61e6649SAlexander Langerdevice		sk
1834d61e6649SAlexander Langerdevice		ti
1835c06a3350SPeter Wemmdevice		fpa
1836d61e6649SAlexander Langer
183798cb733cSKenneth D. Merry# Use "private" jumbo buffers allocated exclusively for the ti(4) driver.
183898cb733cSKenneth D. Merry# This option is incompatible with the TI_JUMBO_HDRSPLIT option below.
183998cb733cSKenneth D. Merry#options 	TI_PRIVATE_JUMBOS
184098cb733cSKenneth D. Merry# Turn on the header splitting option for the ti(4) driver firmware.  This
184198cb733cSKenneth D. Merry# only works for Tigon II chips, and has no effect for Tigon I chips.
184298cb733cSKenneth D. Merryoptions 	TI_JUMBO_HDRSPLIT
184398cb733cSKenneth D. Merry
18442c8f5a28SKenneth D. Merry# These two options allow manipulating the mbuf cluster size and mbuf size,
18452c8f5a28SKenneth D. Merry# respectively.  Be very careful with NIC driver modules when changing
18462c8f5a28SKenneth D. Merry# these from their default values, because that can potentially cause a
18472c8f5a28SKenneth D. Merry# mismatch between the mbuf size assumed by the kernel and the mbuf size
18482c8f5a28SKenneth D. Merry# assumed by a module.  The only driver that currently has the ability to
18492c8f5a28SKenneth D. Merry# detect a mismatch is ti(4).
18502c8f5a28SKenneth D. Merryoptions 	MCLSHIFT=12	# mbuf cluster shift in bits, 12 == 4KB
18512c8f5a28SKenneth D. Merryoptions 	MSIZE=512	# mbuf size in bytes
18522c8f5a28SKenneth D. Merry
185368713f97SKenjiro Cho#
185444b5247dSKenjiro Cho# ATM related options (Cranor version)
185544b5247dSKenjiro Cho# (note: this driver cannot be used with the HARP ATM stack)
185668713f97SKenjiro Cho#
185768713f97SKenjiro Cho# The `en' device provides support for Efficient Networks (ENI)
185868713f97SKenjiro Cho# ENI-155 PCI midway cards, and the Adaptec 155Mbps PCI ATM cards (ANA-59x0).
185968713f97SKenjiro Cho#
1860c594298bSHartmut Brandt# The `hatm' device provides support for Fore/Marconi HE155 and HE622
1861c594298bSHartmut Brandt# ATM PCI cards.
1862c594298bSHartmut Brandt#
1863fb24f088SHartmut Brandt# The `fatm' device provides support for Fore PCA200E ATM PCI cards.
1864fb24f088SHartmut Brandt#
18658dd4275cSHartmut Brandt# The `patm' device provides support for IDT77252 based cards like
18668dd4275cSHartmut Brandt# ProSum's ProATM-155 and ProATM-25 and IDT's evaluation boards.
18678dd4275cSHartmut Brandt#
1868f71c01ccSPeter Wemm# atm device provides generic atm functions and is required for
186968713f97SKenjiro Cho# atm devices.
18703cbceb82SKenjiro Cho# NATM enables the netnatm protocol family that can be used to
187168713f97SKenjiro Cho# bypass TCP/IP.
187268713f97SKenjiro Cho#
1873fb24f088SHartmut Brandt# utopia provides the access to the ATM PHY chips and is required for en,
1874fb24f088SHartmut Brandt# hatm and fatm.
18751ba46a03SHartmut Brandt#
187668713f97SKenjiro Cho# the current driver supports only PVC operations (no atm-arp, no multicast).
187768713f97SKenjiro Cho# for more details, please read the original documents at
187898a44096SSheldon Hearn# http://www.ccrc.wustl.edu/pub/chuck/tech/bsdatm/bsdatm.html
187968713f97SKenjiro Cho#
1880f71c01ccSPeter Wemmdevice		atm
188144b5247dSKenjiro Chodevice		en
1882fb24f088SHartmut Brandtdevice		fatm			#Fore PCA200E
1883c594298bSHartmut Brandtdevice		hatm			#Fore/Marconi HE155/622
18848dd4275cSHartmut Brandtdevice		patm			#IDT77252 cards (ProATM and IDT)
18851ba46a03SHartmut Brandtdevice		utopia			#ATM PHY driver
18863cbceb82SKenjiro Chooptions 	NATM			#native ATM
1887f4567b9cSJulian Elischer
18887e9024cdSHartmut Brandtoptions 	LIBMBPOOL		#needed by patm, iatm
18897e9024cdSHartmut Brandt
1890c19da41eSPeter Wemm#
18910739ea1dSSeigo Tanimura# Sound drivers
1892c19da41eSPeter Wemm#
18930739ea1dSSeigo Tanimura# sound: The generic sound driver.
1894c7406082SJohn-Mark Gurney#
18950739ea1dSSeigo Tanimura
18960739ea1dSSeigo Tanimuradevice		sound
18970739ea1dSSeigo Tanimura
18980739ea1dSSeigo Tanimura#
18990739ea1dSSeigo Tanimura# snd_*: Device-specific drivers.
1900c7406082SJohn-Mark Gurney#
19017f5092f3SJohn Baldwin# The flags of the device tells the device a bit more info about the
19027f5092f3SJohn Baldwin# device that normally is obtained through the PnP interface.
19037f5092f3SJohn Baldwin#	bit  2..0   secondary DMA channel;
19047f5092f3SJohn Baldwin#	bit  4      set if the board uses two dma channels;
19057f5092f3SJohn Baldwin#	bit 15..8   board type, overrides autodetection; leave it
19067f5092f3SJohn Baldwin#		    zero if don't know what to put in (and you don't,
19077f5092f3SJohn Baldwin#		    since this is unsupported at the moment...).
19087f5092f3SJohn Baldwin#
19090739ea1dSSeigo Tanimura# snd_als4000:		Avance Logic ALS4000 PCI.
19100739ea1dSSeigo Tanimura# snd_ad1816:		Analog Devices AD1816 ISA PnP/non-PnP.
19117a7386a3SPyun YongHyeon# snd_audiocs:		Crystal Semiconductor CS4231 SBus/EBus.
19120739ea1dSSeigo Tanimura# snd_cmi:		CMedia CMI8338/CMI8738 PCI.
19130739ea1dSSeigo Tanimura# snd_cs4281:		Crystal Semiconductor CS4281 PCI.
19140739ea1dSSeigo Tanimura# snd_csa:		Crystal Semiconductor CS461x/428x PCI. (except
19150739ea1dSSeigo Tanimura#			4281)
19160739ea1dSSeigo Tanimura# snd_ds1:		Yamaha DS-1 PCI.
19170739ea1dSSeigo Tanimura# snd_emu10k1:		Creative EMU10K1 PCI and EMU10K2 (Audigy) PCI.
19180739ea1dSSeigo Tanimura# snd_es137x:		Ensoniq AudioPCI ES137x PCI.
19190739ea1dSSeigo Tanimura# snd_ess:		Ensoniq ESS ISA PnP/non-PnP.
19200739ea1dSSeigo Tanimura# snd_fm801:		Forte Media FM801 PCI.
19210739ea1dSSeigo Tanimura# snd_gusc:		Gravis UltraSound ISA PnP/non-PnP.
19220739ea1dSSeigo Tanimura# snd_ich:		Intel ICH PCI and some more audio controllers
19230739ea1dSSeigo Tanimura#			embedded in a chipset.
19240739ea1dSSeigo Tanimura# snd_maestro:		ESS Technology Maestro-1/2x PCI.
19250739ea1dSSeigo Tanimura# snd_maestro3:		ESS Technology Maestro-3/Allegro PCI.
19260739ea1dSSeigo Tanimura# snd_mss:		Microsoft Sound System ISA PnP/non-PnP.
19270739ea1dSSeigo Tanimura# snd_neomagic:		Neomagic 256 AV/ZX PCI.
19280739ea1dSSeigo Tanimura# snd_sb16:		Creative SoundBlaster16, to be used in
19290739ea1dSSeigo Tanimura#			conjuction with snd_sbc.
19300739ea1dSSeigo Tanimura# snd_sb8:		Creative SoundBlaster (pre-16), to be used in
19310739ea1dSSeigo Tanimura#			conjuction with snd_sbc.
19320739ea1dSSeigo Tanimura# snd_sbc:		Creative SoundBlaster ISA PnP/non-PnP.
19337f5092f3SJohn Baldwin#			Supports ESS and Avance ISA chips as well.
19340739ea1dSSeigo Tanimura# snd_solo:		ESS Solo-1x PCI.
19350739ea1dSSeigo Tanimura# snd_t4dwave:		Trident 4DWave PCI, Sis 7018 PCI and Acer Labs
19360739ea1dSSeigo Tanimura#			M5451 PCI.
19370739ea1dSSeigo Tanimura# snd_via8233:		VIA VT8233x PCI.
19380739ea1dSSeigo Tanimura# snd_via82c686:	VIA VT82C686A PCI.
19390739ea1dSSeigo Tanimura# snd_vibes:		S3 Sonicvibes PCI.
19400739ea1dSSeigo Tanimura# snd_uaudio:		USB audio.
194181bb901eSPeter Wemm
1942f37a929cSPeter Wemmdevice		snd_ad1816
1943f37a929cSPeter Wemmdevice		snd_als4000
1944f37a929cSPeter Wemm#device		snd_au88x0
19457a7386a3SPyun YongHyeon#device		snd_audiocs
19460739ea1dSSeigo Tanimuradevice		snd_cmi
1947f37a929cSPeter Wemmdevice		snd_cs4281
19480739ea1dSSeigo Tanimuradevice		snd_csa
1949f37a929cSPeter Wemmdevice		snd_ds1
1950f37a929cSPeter Wemmdevice		snd_emu10k1
1951f37a929cSPeter Wemmdevice		snd_es137x
19520739ea1dSSeigo Tanimuradevice		snd_ess
1953f37a929cSPeter Wemmdevice		snd_fm801
19540739ea1dSSeigo Tanimuradevice		snd_gusc
19550739ea1dSSeigo Tanimuradevice		snd_ich
19560739ea1dSSeigo Tanimuradevice		snd_maestro
1957f37a929cSPeter Wemmdevice		snd_maestro3
19580739ea1dSSeigo Tanimuradevice		snd_mss
19590739ea1dSSeigo Tanimuradevice		snd_neomagic
1960f37a929cSPeter Wemmdevice		snd_sb16
1961f37a929cSPeter Wemmdevice		snd_sb8
19620739ea1dSSeigo Tanimuradevice		snd_sbc
19630739ea1dSSeigo Tanimuradevice		snd_solo
1964f37a929cSPeter Wemmdevice		snd_t4dwave
1965f37a929cSPeter Wemmdevice		snd_via8233
1966f37a929cSPeter Wemmdevice		snd_via82c686
19670739ea1dSSeigo Tanimuradevice		snd_vibes
1968f37a929cSPeter Wemm#device		snd_vortex1
19690739ea1dSSeigo Tanimuradevice		snd_uaudio
1970c19da41eSPeter Wemm
19710739ea1dSSeigo Tanimura# For non-pnp sound cards:
1972673974d9SRuslan Ermilovhint.pcm.0.at="isa"
1973673974d9SRuslan Ermilovhint.pcm.0.irq="10"
1974673974d9SRuslan Ermilovhint.pcm.0.drq="1"
1975673974d9SRuslan Ermilovhint.pcm.0.flags="0x0"
1976673974d9SRuslan Ermilovhint.sbc.0.at="isa"
1977673974d9SRuslan Ermilovhint.sbc.0.port="0x220"
1978673974d9SRuslan Ermilovhint.sbc.0.irq="5"
1979673974d9SRuslan Ermilovhint.sbc.0.drq="1"
1980673974d9SRuslan Ermilovhint.sbc.0.flags="0x15"
1981673974d9SRuslan Ermilovhint.gusc.0.at="isa"
1982673974d9SRuslan Ermilovhint.gusc.0.port="0x220"
1983673974d9SRuslan Ermilovhint.gusc.0.irq="5"
1984673974d9SRuslan Ermilovhint.gusc.0.drq="1"
1985673974d9SRuslan Ermilovhint.gusc.0.flags="0x13"
19867f5092f3SJohn Baldwin
19876a8d6623SGarrett Wollman#
198883820457SPoul-Henning Kamp# IEEE-488 hardware:
198983820457SPoul-Henning Kamp#	pcii:	PCIIA cards (uPD7210 based isa cards)
199083820457SPoul-Henning Kampdevice	pcii
199183820457SPoul-Henning Kamphint.pcii.0.at="isa"
199283820457SPoul-Henning Kamphint.pcii.0.port="0x2e1"
199383820457SPoul-Henning Kamphint.pcii.0.irq="5"
199483820457SPoul-Henning Kamphint.pcii.0.drq="1"
199583820457SPoul-Henning Kamp
199683820457SPoul-Henning Kamp#
1997567e21c2SBruce Evans# Miscellaneous hardware:
19986a8d6623SGarrett Wollman#
19996fe8789dSMatthew N. Dodd# scd: Sony CD-ROM using proprietary (non-ATAPI) interface
20003ae5b532SMatthew N. Dodd# mcd: Mitsumi CD-ROM using proprietary (non-ATAPI) interface
20011c2b5939SRoger Hardiman# bktr: Brooktree bt848/848a/849a/878/879 video capture and TV Tuner board
20022849b131SBruce Evans# cy: Cyclades serial driver
20037f5092f3SJohn Baldwin# joy: joystick (including IO DATA PCJOY PC Card joystick)
2004787f1498SJohn Baldwin# rc: RISCom/8 multiport card
2005dd267672SJohn Baldwin# rp: Comtrol Rocketport(ISA/PCI) - single card
20067f5092f3SJohn Baldwin# si: Specialix SI/XIO 4-32 port terminal multiplexor
2007ec84f103SMark Peek# nmdm: nullmodem terminal driver (see nmdm(4))
2008657e73c4SPeter Dufault
20093b577e1fSJordan K. Hubbard# Notes on the Comtrol Rocketport driver:
20103b577e1fSJordan K. Hubbard#
20113b577e1fSJordan K. Hubbard# The exact values used for rp0 depend on how many boards you have
20123b577e1fSJordan K. Hubbard# in the system.  The manufacturer's sample configs are listed as:
20133b577e1fSJordan K. Hubbard#
2014f71c01ccSPeter Wemm#               device  rp	# core driver support
2015f71c01ccSPeter Wemm#
20163b577e1fSJordan K. Hubbard#   Comtrol Rocketport ISA single card
2017b147fcf9SBruce Evans#		hint.rp.0.at="isa"
2018b147fcf9SBruce Evans#		hint.rp.0.port="0x280"
20193b577e1fSJordan K. Hubbard#
20203b577e1fSJordan K. Hubbard#   If instead you have two ISA cards, one installed at 0x100 and the
20213b577e1fSJordan K. Hubbard#   second installed at 0x180, then you should add the following to
2022f71c01ccSPeter Wemm#   your kernel probe hints:
2023b147fcf9SBruce Evans#		hint.rp.0.at="isa"
2024b147fcf9SBruce Evans#		hint.rp.0.port="0x100"
2025b147fcf9SBruce Evans#		hint.rp.1.at="isa"
2026b147fcf9SBruce Evans#		hint.rp.1.port="0x180"
20273b577e1fSJordan K. Hubbard#
20283b577e1fSJordan K. Hubbard#   For 4 ISA cards, it might be something like this:
2029b147fcf9SBruce Evans#		hint.rp.0.at="isa"
2030b147fcf9SBruce Evans#		hint.rp.0.port="0x180"
2031b147fcf9SBruce Evans#		hint.rp.1.at="isa"
2032b147fcf9SBruce Evans#		hint.rp.1.port="0x100"
2033b147fcf9SBruce Evans#		hint.rp.2.at="isa"
2034b147fcf9SBruce Evans#		hint.rp.2.port="0x340"
2035b147fcf9SBruce Evans#		hint.rp.3.at="isa"
2036b147fcf9SBruce Evans#		hint.rp.3.port="0x240"
20373b577e1fSJordan K. Hubbard#
2038dd267672SJohn Baldwin#   For PCI cards, you need no hints.
20393b577e1fSJordan K. Hubbard
20403ae5b532SMatthew N. Dodd# Mitsumi CD-ROM
20413ae5b532SMatthew N. Dodddevice		mcd
20423ae5b532SMatthew N. Doddhint.mcd.0.at="isa"
20433ae5b532SMatthew N. Doddhint.mcd.0.port="0x300"
20446fe8789dSMatthew N. Dodd# for the Sony CDU31/33A CDROM
20456fe8789dSMatthew N. Dodddevice		scd
20466fe8789dSMatthew N. Doddhint.scd.0.at="isa"
20476fe8789dSMatthew N. Doddhint.scd.0.port="0x230"
20487f5092f3SJohn Baldwindevice		joy			# PnP aware, hints for nonpnp only
20497f5092f3SJohn Baldwinhint.joy.0.at="isa"
20507f5092f3SJohn Baldwinhint.joy.0.port="0x201"
2051787f1498SJohn Baldwindevice		rc
2052787f1498SJohn Baldwinhint.rc.0.at="isa"
2053787f1498SJohn Baldwinhint.rc.0.port="0x220"
2054787f1498SJohn Baldwinhint.rc.0.irq="12"
2055f71c01ccSPeter Wemmdevice		rp
20567f5092f3SJohn Baldwinhint.rp.0.at="isa"
20577f5092f3SJohn Baldwinhint.rp.0.port="0x280"
20587f5092f3SJohn Baldwindevice		si
20597f5092f3SJohn Baldwinoptions 	SI_DEBUG
20607f5092f3SJohn Baldwinhint.si.0.at="isa"
20617f5092f3SJohn Baldwinhint.si.0.maddr="0xd0000"
20627f5092f3SJohn Baldwinhint.si.0.irq="12"
2063ec84f103SMark Peekdevice		nmdm
2064a800f455SJulian Elischer
2065eeb706c0SJustin T. Gibbs#
2066a9c5b8d0SSøren Schmidt# The 'bktr' device is a PCI video capture device using the Brooktree
20671c2b5939SRoger Hardiman# bt848/bt848a/bt849a/bt878/bt879 chipset. When used with a TV Tuner it forms a
2068a2f87f42SPeter Pentchev# TV card, e.g. Miro PC/TV, Hauppauge WinCast/TV WinTV, VideoLogic Captivator,
20691c2b5939SRoger Hardiman# Intel Smart Video III, AverMedia, IMS Turbo, FlyVideo.
20701c2b5939SRoger Hardiman#
2071a9c5b8d0SSøren Schmidt# options 	OVERRIDE_CARD=xxx
2072a9c5b8d0SSøren Schmidt# options 	OVERRIDE_TUNER=xxx
2073a9c5b8d0SSøren Schmidt# options 	OVERRIDE_MSP=1
2074a9c5b8d0SSøren Schmidt# options 	OVERRIDE_DBX=1
20751c2b5939SRoger Hardiman# These options can be used to override the auto detection
207698a44096SSheldon Hearn# The current values for xxx are found in src/sys/dev/bktr/bktr_card.h
20771c2b5939SRoger Hardiman# Using sysctl(8) run-time overrides on a per-card basis can be made
20789ff07e32SAmancio Hasty#
20794f5f3f07SBrian Somers# options 	BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_PAL
20801c2b5939SRoger Hardiman# or
20811c2b5939SRoger Hardiman# options 	BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_NTSC
20823c7c6c12SMike Pritchard# Specifies the default video capture mode.
2083a9c5b8d0SSøren Schmidt# This is required for Dual Crystal (28&35Mhz) boards where PAL is used
2084a2f87f42SPeter Pentchev# to prevent hangs during initialisation, e.g. VideoLogic Captivator PCI.
2085a9c5b8d0SSøren Schmidt#
20864f5f3f07SBrian Somers# options 	BKTR_USE_PLL
2087a2f87f42SPeter Pentchev# This is required for PAL or SECAM boards with a 28Mhz crystal and no 35Mhz
2088a2f87f42SPeter Pentchev# crystal, e.g. some new Bt878 cards.
2089a9c5b8d0SSøren Schmidt#
20901c2b5939SRoger Hardiman# options 	BKTR_GPIO_ACCESS
20911c2b5939SRoger Hardiman# This enable IOCTLs which give user level access to the GPIO port.
20921c2b5939SRoger Hardiman#
20931c2b5939SRoger Hardiman# options 	BKTR_NO_MSP_RESET
20941c2b5939SRoger Hardiman# Prevents the MSP34xx reset. Good if you initialise the MSP in another OS first
20951c2b5939SRoger Hardiman#
20961c2b5939SRoger Hardiman# options 	BKTR_430_FX_MODE
20971c2b5939SRoger Hardiman# Switch Bt878/879 cards into Intel 430FX chipset compatibility mode.
20981c2b5939SRoger Hardiman#
20991c2b5939SRoger Hardiman# options 	BKTR_SIS_VIA_MODE
21001c2b5939SRoger Hardiman# Switch Bt878/879 cards into SIS/VIA chipset compatibility mode which is
21011c2b5939SRoger Hardiman# needed for some old SiS and VIA chipset motherboards.
21021c2b5939SRoger Hardiman# This also allows Bt878/879 chips to work on old OPTi (<1997) chipset
21031c2b5939SRoger Hardiman# motherboards and motherboards with bad or incomplete PCI 2.1 support.
21041c2b5939SRoger Hardiman# As a rough guess, old = before 1998
21051c2b5939SRoger Hardiman#
210630e27d96SAlexander Langer# options 	BKTR_NEW_MSP34XX_DRIVER
210730e27d96SAlexander Langer# Use new, more complete initialization scheme for the msp34* soundchip.
210830e27d96SAlexander Langer# Should fix stereo autodetection if the old driver does only output
210930e27d96SAlexander Langer# mono sound.
2110017b0edcSMatt Jacob
2111c17d4340SNicolas Souchu#
2112c17d4340SNicolas Souchu# options 	BKTR_USE_FREEBSD_SMBUS
2113c17d4340SNicolas Souchu# Compile with FreeBSD SMBus implementation
2114c17d4340SNicolas Souchu#
211528ebb692SNicolas Souchu# Brooktree driver has been ported to the new I2C framework. Thus,
21160f3563b6SRoger Hardiman# you'll need to have the following 3 lines in the kernel config.
211737973e86SPeter Wemm#     device smbus
211837973e86SPeter Wemm#     device iicbus
211937973e86SPeter Wemm#     device iicbb
2120c17d4340SNicolas Souchu#     device iicsmb
21210f3563b6SRoger Hardiman# The iic and smb devices are only needed if you want to control other
21220f3563b6SRoger Hardiman# I2C slaves connected to the external connector of some cards.
212328ebb692SNicolas Souchu#
2124c06a3350SPeter Wemmdevice		bktr
2125446cee6eSJoerg Wunsch
2126dc9deb29SPoul-Henning Kamp#
21276e818956SDavid E. O'Brien# PC Card/PCMCIA
21286e818956SDavid E. O'Brien# (OLDCARD)
21296e818956SDavid E. O'Brien#
21306e818956SDavid E. O'Brien# card: pccard slots
21316e818956SDavid E. O'Brien# pcic: isa/pccard bridge
21326e818956SDavid E. O'Brien#device		pcic
21336e818956SDavid E. O'Brien#hint.pcic.0.at="isa"
21346e818956SDavid E. O'Brien#hint.pcic.1.at="isa"
21356e818956SDavid E. O'Brien#device		card	1
21366e818956SDavid E. O'Brien
21376e818956SDavid E. O'Brien#
21386e818956SDavid E. O'Brien# PC Card/PCMCIA and Cardbus
21396e818956SDavid E. O'Brien# (NEWCARD)
21406e818956SDavid E. O'Brien#
21416e818956SDavid E. O'Brien# Note that NEWCARD and OLDCARD are incompatible.  Do not use both at the same
21426e818956SDavid E. O'Brien# time.
21436e818956SDavid E. O'Brien#
21446e818956SDavid E. O'Brien# pccbb: pci/cardbus bridge implementing YENTA interface
21456e818956SDavid E. O'Brien# pccard: pccard slots
21466e818956SDavid E. O'Brien# cardbus: cardbus slots
21476e818956SDavid E. O'Briendevice		cbb
21486e818956SDavid E. O'Briendevice		pccard
21496e818956SDavid E. O'Briendevice		cardbus
21506e818956SDavid E. O'Brien
21516e818956SDavid E. O'Brien#
21528afa373cSNicolas Souchu# SMB bus
21538afa373cSNicolas Souchu#
21543c5656bfSArchie Cobbs# System Management Bus support is provided by the 'smbus' device.
21553c5656bfSArchie Cobbs# Access to the SMBus device is via the 'smb' device (/dev/smb*),
21563c5656bfSArchie Cobbs# which is a child of the 'smbus' device.
21578afa373cSNicolas Souchu#
21588afa373cSNicolas Souchu# Supported devices:
21593c5656bfSArchie Cobbs# smb		standard io through /dev/smb*
21608afa373cSNicolas Souchu#
21613c5656bfSArchie Cobbs# Supported SMB interfaces:
216228ebb692SNicolas Souchu# iicsmb	I2C to SMB bridge with any iicbus interface
216328ebb692SNicolas Souchu# bktr		brooktree848 I2C hardware interface
21647f5092f3SJohn Baldwin# intpm		Intel PIIX4 (82371AB, 82443MX) Power Management Unit
21657f5092f3SJohn Baldwin# alpm		Acer Aladdin-IV/V/Pro2 Power Management Unit
21667f5092f3SJohn Baldwin# ichsmb	Intel ICH SMBus controller chips (82801AA, 82801AB, 82801BA)
21677f5092f3SJohn Baldwin# viapm		VIA VT82C586B/596B/686A and VT8233 Power Management Unit
2168b1acc4a2SMurray Stokely# amdpm		AMD 756 Power Management Unit
216944e6ce01SNicolas Souchu# nfpm		NVIDIA nForce Power Management Unit
21708afa373cSNicolas Souchu#
2171c9953c3bSPeter Wemmdevice		smbus		# Bus support, required for smb below.
21723c5656bfSArchie Cobbs
21737f5092f3SJohn Baldwindevice		intpm
21747f5092f3SJohn Baldwindevice		alpm
21757f5092f3SJohn Baldwindevice		ichsmb
21767f5092f3SJohn Baldwindevice		viapm
217744e6ce01SNicolas Souchudevice		amdpm
217844e6ce01SNicolas Souchudevice		nfpm
21797f5092f3SJohn Baldwin
2180c9953c3bSPeter Wemmdevice		smb
21818afa373cSNicolas Souchu
21828afa373cSNicolas Souchu#
21838afa373cSNicolas Souchu# I2C Bus
21848afa373cSNicolas Souchu#
21858afa373cSNicolas Souchu# Philips i2c bus support is provided by the `iicbus' device.
21868afa373cSNicolas Souchu#
21878afa373cSNicolas Souchu# Supported devices:
21888afa373cSNicolas Souchu# ic	i2c network interface
21898afa373cSNicolas Souchu# iic	i2c standard io
2190f7d09fbaSNicolas Souchu# iicsmb i2c to smb bridge. Allow i2c i/o with smb commands.
21918afa373cSNicolas Souchu#
21928afa373cSNicolas Souchu# Supported interfaces:
219328ebb692SNicolas Souchu# bktr	brooktree848 I2C software interface
219428ebb692SNicolas Souchu#
219528ebb692SNicolas Souchu# Other:
219628ebb692SNicolas Souchu# iicbb	generic I2C bit-banging code (needed by lpbb, bktr)
21978afa373cSNicolas Souchu#
2198c9953c3bSPeter Wemmdevice		iicbus		# Bus support, required for ic/iic/iicsmb below.
2199c9953c3bSPeter Wemmdevice		iicbb
22008afa373cSNicolas Souchu
2201c9953c3bSPeter Wemmdevice		ic
2202c9953c3bSPeter Wemmdevice		iic
2203c9953c3bSPeter Wemmdevice		iicsmb		# smb over i2c bridge
22048afa373cSNicolas Souchu
2205ab4c624bSMike Smith# Parallel-Port Bus
2206ab4c624bSMike Smith#
2207ab4c624bSMike Smith# Parallel port bus support is provided by the `ppbus' device.
2208ab4c624bSMike Smith# Multiple devices may be attached to the parallel port, devices
2209ab4c624bSMike Smith# are automatically probed and attached when found.
2210ab4c624bSMike Smith#
2211ab4c624bSMike Smith# Supported devices:
2212ab4c624bSMike Smith# vpo	Iomega Zip Drive
2213f7d09fbaSNicolas Souchu#	Requires SCSI disk support ('scbus' and 'da'), best
2214f88c1346SMike Smith#	performance is achieved with ports in EPP 1.9 mode.
2215fdf94d1aSNicolas Souchu# lpt	Parallel Printer
221646f3ff79SMike Smith# plip	Parallel network interface
2217fdf94d1aSNicolas Souchu# ppi	General-purpose I/O ("Geek Port") + IEEE1284 I/O
2218f7d09fbaSNicolas Souchu# pps	Pulse per second Timing Interface
221928ebb692SNicolas Souchu# lpbb	Philips official parallel port I2C bit-banging interface
2220ab4c624bSMike Smith#
2221ab4c624bSMike Smith# Supported interfaces:
2222ab4c624bSMike Smith# ppc	ISA-bus parallel port interfaces.
2223ab4c624bSMike Smith#
2224ef8f7626SNicolas Souchu
22250f210c92SNicolas Souchuoptions 	PPC_PROBE_CHIPSET # Enable chipset specific detection
22260f210c92SNicolas Souchu				  # (see flags in ppc(4))
22275895e3c8SPeter Wemmoptions 	DEBUG_1284	# IEEE1284 signaling protocol debug
22289d5abbddSJens Schweikhardtoptions 	PERIPH_1284	# Makes your computer act as an IEEE1284
2229ef8f7626SNicolas Souchu				# compliant peripheral
22305895e3c8SPeter Wemmoptions 	DONTPROBE_1284	# Avoid boot detection of PnP parallel devices
22315895e3c8SPeter Wemmoptions 	VP0_DEBUG	# ZIP/ZIP+ debug
22325895e3c8SPeter Wemmoptions 	LPT_DEBUG	# Printer driver debug
22335895e3c8SPeter Wemmoptions 	PPC_DEBUG	# Parallel chipset level debug
22345895e3c8SPeter Wemmoptions 	PLIP_DEBUG	# Parallel network IP interface debug
22353b2d592cSJordan K. Hubbardoptions 	PCFCLOCK_VERBOSE         # Verbose pcfclock driver
22363b2d592cSJordan K. Hubbardoptions 	PCFCLOCK_MAX_RETRIES=5   # Maximum read tries (default 10)
2237ef8f7626SNicolas Souchu
2238f71c01ccSPeter Wemmdevice		ppc
2239f71c01ccSPeter Wemmhint.ppc.0.at="isa"
2240f71c01ccSPeter Wemmhint.ppc.0.irq="7"
22410d31b179SPeter Wemmdevice		ppbus
22420d31b179SPeter Wemmdevice		vpo
22430d31b179SPeter Wemmdevice		lpt
22440d31b179SPeter Wemmdevice		plip
22450d31b179SPeter Wemmdevice		ppi
22460d31b179SPeter Wemmdevice		pps
22470d31b179SPeter Wemmdevice		lpbb
22480d31b179SPeter Wemmdevice		pcfclock
2249ab4c624bSMike Smith
22500ac40133SBrian Somers# Kernel BOOTP support
22510ac40133SBrian Somers
22520ac40133SBrian Somersoptions 	BOOTP		# Use BOOTP to obtain IP address/hostname
22530ac40133SBrian Somers				# Requires NFSCLIENT and NFS_ROOT
22540ac40133SBrian Somersoptions 	BOOTP_NFSROOT	# NFS mount root filesystem using BOOTP info
22550ac40133SBrian Somersoptions 	BOOTP_NFSV3	# Use NFS v3 to NFS mount root
22560ac40133SBrian Somersoptions 	BOOTP_COMPAT	# Workaround for broken bootp daemons.
22570ac40133SBrian Somersoptions 	BOOTP_WIRED_TO=fxp0 # Use interface fxp0 for BOOTP
2258432aad0eSTor Egge
2259d94f38acSEivind Eklund#
22604103b765SPoul-Henning Kamp# Add software watchdog routines.
2261370c3cb5SSean Kelly#
22624103b765SPoul-Henning Kampoptions 	SW_WATCHDOG
2263370c3cb5SSean Kelly
2264370c3cb5SSean Kelly#
2265b99d6e6fSDavid Schultz# Disable swapping of stack pages.  This option removes all
22664e0ee531SMike Barcroft# code which actually performs swapping, so it's not possible to turn
22674e0ee531SMike Barcroft# it back on at run-time.
2268c796cfa1SAndrzej Bialecki#
2269c796cfa1SAndrzej Bialecki# This is sometimes usable for systems which don't have any swap space
2270c796cfa1SAndrzej Bialecki# (see also sysctls "vm.defer_swapspace_pageouts" and
2271c796cfa1SAndrzej Bialecki# "vm.disable_swapspace_pageouts")
2272c796cfa1SAndrzej Bialecki#
227319dde963SPeter Wemm#options 	NO_SWAPPING
2274c796cfa1SAndrzej Bialecki
22759dab0776SDavid Greenman# Set the number of sf_bufs to allocate. sf_bufs are virtual buffers
22769dab0776SDavid Greenman# for sendfile(2) that are used to map file VM pages, and normally
22779dab0776SDavid Greenman# default to a quantity that is roughly 16*MAXUSERS+512. You would
22789dab0776SDavid Greenman# typically want about 4 of these for each simultaneous file send.
22799dab0776SDavid Greenman#
22805895e3c8SPeter Wemmoptions 	NSFBUFS=1024
22819dab0776SDavid Greenman
228215a1057cSEivind Eklund#
2283053a2b61SEivind Eklund# Enable extra debugging code for locks.  This stores the filename and
2284ec4e5afbSRobert Nordier# line of whatever acquired the lock in the lock itself, and change a
2285053a2b61SEivind Eklund# number of function calls to pass around the relevant data.  This is
2286053a2b61SEivind Eklund# not at all useful unless you are debugging lock code.  Also note
2287053a2b61SEivind Eklund# that it is likely to break e.g. fstat(1) unless you recompile your
2288053a2b61SEivind Eklund# userland with -DDEBUG_LOCKS as well.
228915a1057cSEivind Eklund#
229015a1057cSEivind Eklundoptions 	DEBUG_LOCKS
229115a1057cSEivind Eklund
229226086a03SPeter Wemm
229326086a03SPeter Wemm#####################################################################
22941d33cf3dSNick Hibma# USB support
22951d33cf3dSNick Hibma# UHCI controller
2296c9953c3bSPeter Wemmdevice		uhci
22971d33cf3dSNick Hibma# OHCI controller
2298c9953c3bSPeter Wemmdevice		ohci
2299ca3acad1SBernd Walter# EHCI controller
2300ca3acad1SBernd Walterdevice		ehci
23011d33cf3dSNick Hibma# General USB code (mandatory for USB)
2302c9953c3bSPeter Wemmdevice		usb
23031d33cf3dSNick Hibma#
2304b5ea1f0cSNick Hibma# USB Double Bulk Pipe devices
2305b5ea1f0cSNick Hibmadevice		udbp
2306d1233ab3SBruce Evans# USB Fm Radio
2307d1233ab3SBruce Evansdevice		ufm
2308f26c33d2SNick Hibma# Generic USB device driver
2309c9953c3bSPeter Wemmdevice		ugen
2310f26c33d2SNick Hibma# Human Interface Device (anything with buttons and dials)
2311c9953c3bSPeter Wemmdevice		uhid
23121d33cf3dSNick Hibma# USB keyboard
2313c9953c3bSPeter Wemmdevice		ukbd
23141d33cf3dSNick Hibma# USB printer
2315c9953c3bSPeter Wemmdevice		ulpt
23166521db35SKris Kennaway# USB Iomega Zip 100 Drive (Requires scbus and da)
2317c9953c3bSPeter Wemmdevice		umass
2318ce17576aSScott Long# USB support for Belkin F5U109 and Magic Control Technology serial adapters
2319ce17576aSScott Longdevice		umct
2320e9fb12d3SNick Hibma# USB modem support
2321e9fb12d3SNick Hibmadevice		umodem
2322f26c33d2SNick Hibma# USB mouse
2323c9953c3bSPeter Wemmdevice		ums
2324e2dbd15fSNick Hibma# Diamond Rio 500 Mp3 player
2325e2dbd15fSNick Hibmadevice		urio
23262fd84f56SNick Hibma# USB scanners
23272fd84f56SNick Hibmadevice		uscanner
2328d1233ab3SBruce Evans#
2329916e6e02SJosef Karthauser# USB serial support
2330916e6e02SJosef Karthauserdevice		ucom
2331d1233ab3SBruce Evans# USB support for Belkin F5U103 and compatible serial adapters
2332d1233ab3SBruce Evansdevice		ubsa
2333d1233ab3SBruce Evans# USB support for BWCT console serial adapters
2334d1233ab3SBruce Evansdevice		ubser
233548b68edfSJosef Karthauser# USB support for serial adapters based on the FT8U100AX and FT8U232AM
233648b68edfSJosef Karthauserdevice		uftdi
233748b68edfSJosef Karthauser# USB support for Prolific PL-2303 serial adapters
2338916e6e02SJosef Karthauserdevice		uplcom
233948b68edfSJosef Karthauser# USB Visor and Palm devices
234048b68edfSJosef Karthauserdevice		uvisor
2341d1233ab3SBruce Evans# USB serial support for DDI pocket's PHS
2342d1233ab3SBruce Evansdevice		uvscom
2343f26c33d2SNick Hibma#
2344ed63a7aaSBill Paul# ADMtek USB ethernet. Supports the LinkSys USB100TX,
2345d04bb221SBill Paul# the Billionton USB100, the Melco LU-ATX, the D-Link DSB-650TX
2346d04bb221SBill Paul# and the SMC 2202USB. Also works with the ADMtek AN986 Pegasus
2347d04bb221SBill Paul# eval board.
2348c9953c3bSPeter Wemmdevice		aue
2349bf029145SRobert Watson
2350bf029145SRobert Watson# ASIX Electronics AX88172 USB 2.0 ethernet driver. Used in the
2351bf029145SRobert Watson# LinkSys USB200M and various other adapters.
2352bf029145SRobert Watson
2353bf029145SRobert Watsondevice		axe
2354bf029145SRobert Watson
2355dfd1e98eSBill Paul#
23566bcf0032SMaxim Sobolev# Devices which communicate using Ethernet over USB, particularly
23576bcf0032SMaxim Sobolev# Communication Device Class (CDC) Ethernet specification. Supports
23586bcf0032SMaxim Sobolev# Sharp Zaurus PDAs, some DOCSIS cable modems and so on.
23596bcf0032SMaxim Sobolevdevice		cdce
23606bcf0032SMaxim Sobolev#
236101779872SBill Paul# CATC USB-EL1201A USB ethernet. Supports the CATC Netmate
236201779872SBill Paul# and Netmate II, and the Belkin F5U111.
2363c9953c3bSPeter Wemmdevice		cue
236401779872SBill Paul#
2365dfd1e98eSBill Paul# Kawasaki LSI ethernet. Supports the LinkSys USB10T,
2366d04bb221SBill Paul# Entrega USB-NET-E45, Peracom Ethernet Adapter, the
2367d04bb221SBill Paul# 3Com 3c19250, the ADS Technologies USB-10BT, the ATen UC10T,
236801779872SBill Paul# the Netgear EA101, the D-Link DSB-650, the SMC 2102USB
236901779872SBill Paul# and 2104USB, and the Corega USB-T.
2370c9953c3bSPeter Wemmdevice		kue
237111e04b05SShunsuke Akiyama#
237211e04b05SShunsuke Akiyama# RealTek RTL8150 USB to fast ethernet. Supports the Melco LUA-KTX
237311e04b05SShunsuke Akiyama# and the GREEN HOUSE GH-USB100B.
237411e04b05SShunsuke Akiyamadevice		rue
2375cdd40f3bSMIHIRA Sanpei Yoshiro#
2376cdd40f3bSMIHIRA Sanpei Yoshiro# Davicom DM9601E USB to fast ethernet. Supports the Corega FEther USB-TXC.
2377cdd40f3bSMIHIRA Sanpei Yoshirodevice		udav
2378cdd40f3bSMIHIRA Sanpei Yoshiro
2379f26c33d2SNick Hibma
2380f26c33d2SNick Hibma# debugging options for the USB subsystem
23811d33cf3dSNick Hibma#
23821d33cf3dSNick Hibmaoptions 	USB_DEBUG
2383f26c33d2SNick Hibma
23846e8394b8SKazutaka YOKOTA# options for ukbd:
23856e8394b8SKazutaka YOKOTAoptions 	UKBD_DFLT_KEYMAP	# specify the built-in keymap
2386cc6c2ad0SPeter Wemmmakeoptions	UKBD_DFLT_KEYMAP=it.iso
23876e8394b8SKazutaka YOKOTA
2388565f53bbSShunsuke Akiyama# options for uplcom:
23893c7c6c12SMike Pritchardoptions 	UPLCOM_INTR_INTERVAL=100	# interrupt pipe interval
2390565f53bbSShunsuke Akiyama						# in milliseconds
2391565f53bbSShunsuke Akiyama
239220280807SShunsuke Akiyama# options for uvscom:
239320280807SShunsuke Akiyamaoptions 	UVSCOM_DEFAULT_OPKTSIZE=8	# default output packet size
23943c7c6c12SMike Pritchardoptions 	UVSCOM_INTR_INTERVAL=100	# interrupt pipe interval
2395565f53bbSShunsuke Akiyama						# in milliseconds
239620280807SShunsuke Akiyama
23978b7ce2ffSSam Leffler#####################################################################
2398869093b1SHidetoshi Shimokawa# FireWire support
23997d2ba89bSJohn Baldwin
2400869093b1SHidetoshi Shimokawadevice		firewire	# FireWire bus code
24017d2ba89bSJohn Baldwindevice		sbp		# SCSI over Firewire (Requires scbus and da)
240279acdabbSHidetoshi Shimokawadevice		sbp_targ	# SBP-2 Target mode  (Requires scbus and targ)
2403869093b1SHidetoshi Shimokawadevice		fwe		# Ethernet over FireWire (non-standard!)
2404b8b33234SDoug Rabsondevice		fwip		# IP over FireWire (rfc2734 and rfc3146)
2405869093b1SHidetoshi Shimokawa
2406869093b1SHidetoshi Shimokawa#####################################################################
2407869093b1SHidetoshi Shimokawa# dcons support (Dumb Console Device)
2408869093b1SHidetoshi Shimokawa
2409869093b1SHidetoshi Shimokawadevice		dcons			# dumb console driver
2410869093b1SHidetoshi Shimokawadevice		dcons_crom		# FireWire attachment
2411869093b1SHidetoshi Shimokawaoptions 	DCONS_BUF_SIZE=16384	# buffer size
2412869093b1SHidetoshi Shimokawaoptions 	DCONS_POLL_HZ=100	# polling rate
2413869093b1SHidetoshi Shimokawaoptions 	DCONS_FORCE_CONSOLE=0	# force to be the primary console
2414869093b1SHidetoshi Shimokawaoptions 	DCONS_FORCE_GDB=1	# force to be the gdb device
24157d2ba89bSJohn Baldwin
24167d2ba89bSJohn Baldwin#####################################################################
24178b7ce2ffSSam Leffler# crypto subsystem
24188b7ce2ffSSam Leffler#
24198b7ce2ffSSam Leffler# This is a port of the openbsd crypto framework.  Include this when
24208b7ce2ffSSam Leffler# configuring FAST_IPSEC and when you have a h/w crypto device to accelerate
24218b7ce2ffSSam Leffler# user applications that link to openssl.
24228b7ce2ffSSam Leffler#
24238b7ce2ffSSam Leffler# Drivers are ports from openbsd with some simple enhancements that have
24248b7ce2ffSSam Leffler# been fed back to openbsd.
24258b7ce2ffSSam Leffler
24268b7ce2ffSSam Lefflerdevice		crypto		# core crypto support
24278b7ce2ffSSam Lefflerdevice		cryptodev	# /dev/crypto for access to h/w
24288b7ce2ffSSam Leffler
2429ac7e2c05SSam Lefflerdevice		rndtest		# FIPS 140-2 entropy tester
24308b7ce2ffSSam Leffler
2431b7c4858fSSam Lefflerdevice		hifn		# Hifn 7951, 7781, etc.
2432b7c4858fSSam Leffleroptions 	HIFN_DEBUG	# enable debugging support: hw.hifn.debug
2433b7c4858fSSam Leffleroptions 	HIFN_RNDTEST	# enable rndtest support
2434b7c4858fSSam Leffler
2435b7c4858fSSam Lefflerdevice		ubsec		# Broadcom 5501, 5601, 58xx
2436b7c4858fSSam Leffleroptions 	UBSEC_DEBUG	# enable debugging support: hw.ubsec.debug
2437b7c4858fSSam Leffleroptions 	UBSEC_RNDTEST	# enable rndtest support
2438b7c4858fSSam Leffler
24398b7ce2ffSSam Leffler#####################################################################
24408b7ce2ffSSam Leffler
24418b7ce2ffSSam Leffler
2442785d2100SJohn Birrell#
2443785d2100SJohn Birrell# Embedded system options:
2444785d2100SJohn Birrell#
2445785d2100SJohn Birrell# An embedded system might want to run something other than init.
244625388b6cSBruce Evansoptions 	INIT_PATH=/sbin/init:/stand/sysinstall
2447bc0e3a03SJeroen Ruigrok van der Werven
2448bc0e3a03SJeroen Ruigrok van der Werven# Debug options
2449bc0e3a03SJeroen Ruigrok van der Wervenoptions 	BUS_DEBUG	# enable newbus debugging
2450bc0e3a03SJeroen Ruigrok van der Wervenoptions 	DEBUG_VFS_LOCKS	# enable vfs lock debugging
2451395bb186SSam Leffleroptions 	SOCKBUF_DEBUG	# enable sockbuf last record/mb tail checking
2452bc0e3a03SJeroen Ruigrok van der Werven
2453446af86dSJohn Baldwin#####################################################################
2454446af86dSJohn Baldwin# SYSV IPC KERNEL PARAMETERS
2455446af86dSJohn Baldwin#
2456446af86dSJohn Baldwin# Maximum number of entries in a semaphore map.
2457446af86dSJohn Baldwinoptions 	SEMMAP=31
2458446af86dSJohn Baldwin
2459446af86dSJohn Baldwin# Maximum number of System V semaphores that can be used on the system at
2460446af86dSJohn Baldwin# one time.
2461446af86dSJohn Baldwinoptions 	SEMMNI=11
2462446af86dSJohn Baldwin
2463446af86dSJohn Baldwin# Total number of semaphores system wide
2464446af86dSJohn Baldwinoptions 	SEMMNS=61
2465446af86dSJohn Baldwin
2466446af86dSJohn Baldwin# Total number of undo structures in system
2467446af86dSJohn Baldwinoptions 	SEMMNU=31
2468446af86dSJohn Baldwin
2469446af86dSJohn Baldwin# Maximum number of System V semaphores that can be used by a single process
2470446af86dSJohn Baldwin# at one time.
2471446af86dSJohn Baldwinoptions 	SEMMSL=61
2472446af86dSJohn Baldwin
2473446af86dSJohn Baldwin# Maximum number of operations that can be outstanding on a single System V
2474446af86dSJohn Baldwin# semaphore at one time.
2475446af86dSJohn Baldwinoptions 	SEMOPM=101
2476446af86dSJohn Baldwin
2477446af86dSJohn Baldwin# Maximum number of undo operations that can be outstanding on a single
2478446af86dSJohn Baldwin# System V semaphore at one time.
2479446af86dSJohn Baldwinoptions 	SEMUME=11
2480446af86dSJohn Baldwin
2481446af86dSJohn Baldwin# Maximum number of shared memory pages system wide.
2482446af86dSJohn Baldwinoptions 	SHMALL=1025
2483446af86dSJohn Baldwin
2484446af86dSJohn Baldwin# Maximum size, in bytes, of a single System V shared memory region.
248525388b6cSBruce Evansoptions 	SHMMAX=(SHMMAXPGS*PAGE_SIZE+1)
2486446af86dSJohn Baldwinoptions 	SHMMAXPGS=1025
2487446af86dSJohn Baldwin
2488446af86dSJohn Baldwin# Minimum size, in bytes, of a single System V shared memory region.
2489446af86dSJohn Baldwinoptions 	SHMMIN=2
2490446af86dSJohn Baldwin
2491446af86dSJohn Baldwin# Maximum number of shared memory regions that can be used on the system
2492446af86dSJohn Baldwin# at one time.
2493446af86dSJohn Baldwinoptions 	SHMMNI=33
2494446af86dSJohn Baldwin
2495446af86dSJohn Baldwin# Maximum number of System V shared memory regions that can be attached to
2496446af86dSJohn Baldwin# a single process at one time.
2497446af86dSJohn Baldwinoptions 	SHMSEG=9
2498446af86dSJohn Baldwin
2499d9282887SDima Dorfman# Set the amount of time (in seconds) the system will wait before
2500d9282887SDima Dorfman# rebooting automatically when a kernel panic occurs.  If set to (-1),
2501d9282887SDima Dorfman# the system will wait indefinitely until a key is pressed on the
2502d9282887SDima Dorfman# console.
2503d9282887SDima Dorfmanoptions 	PANIC_REBOOT_WAIT_TIME=16
2504d9282887SDima Dorfman
25055bbb8060STor Egge# Attempt to bypass the buffer cache and put data directly into the
25065bbb8060STor Egge# userland buffer for read operation when O_DIRECT flag is set on the
25075bbb8060STor Egge# file.  Both offset and length of the read operation must be
25085bbb8060STor Egge# multiples of the physical media sector size.
25095bbb8060STor Egge#
2510995356dcSDag-Erling Smørgravoptions 	DIRECTIO
25115bbb8060STor Egge
25125bbb8060STor Egge# Specify a lower limit for the number of swap I/O buffers.  They are
25135bbb8060STor Egge# (among other things) used when bypassing the buffer cache due to
25145bbb8060STor Egge# DIRECTIO kernel option enabled and O_DIRECT flag set on file.
25155bbb8060STor Egge#
2516995356dcSDag-Erling Smørgravoptions 	NSWBUF_MIN=120
25175bbb8060STor Egge
2518446af86dSJohn Baldwin#####################################################################
2519446af86dSJohn Baldwin
2520bc0e3a03SJeroen Ruigrok van der Werven# More undocumented options for linting.
2521bc0e3a03SJeroen Ruigrok van der Werven# Note that documenting these are not considered an affront.
2522bc0e3a03SJeroen Ruigrok van der Werven
2523bc0e3a03SJeroen Ruigrok van der Wervenoptions 	CAM_DEBUG_DELAY
252428d7984fSJeroen Ruigrok van der Werven
252528d7984fSJeroen Ruigrok van der Werven# VFS cluster debugging.
2526bc0e3a03SJeroen Ruigrok van der Wervenoptions 	CLUSTERDEBUG
252728d7984fSJeroen Ruigrok van der Werven
2528bc0e3a03SJeroen Ruigrok van der Wervenoptions 	DEBUG
25298b6f5e65SJeroen Ruigrok van der Werven
253028d7984fSJeroen Ruigrok van der Werven# Kernel filelock debugging.
2531bc0e3a03SJeroen Ruigrok van der Wervenoptions 	LOCKF_DEBUG
253228d7984fSJeroen Ruigrok van der Werven
25338b6f5e65SJeroen Ruigrok van der Werven# System V compatible message queues
25348b6f5e65SJeroen Ruigrok van der Werven# Please note that the values provided here are used to test kernel
25358b6f5e65SJeroen Ruigrok van der Werven# building.  The defaults in the sources provide almost the same numbers.
25368b6f5e65SJeroen Ruigrok van der Werven# MSGSSZ must be a power of 2 between 8 and 1024.
25378b6f5e65SJeroen Ruigrok van der Wervenoptions 	MSGMNB=2049	# Max number of chars in queue
25388b6f5e65SJeroen Ruigrok van der Wervenoptions 	MSGMNI=41	# Max number of message queue identifiers
25398b6f5e65SJeroen Ruigrok van der Wervenoptions 	MSGSEG=2049	# Max number of message segments
25408b6f5e65SJeroen Ruigrok van der Wervenoptions 	MSGSSZ=16	# Size of a message segment
25418b6f5e65SJeroen Ruigrok van der Wervenoptions 	MSGTQL=41	# Max number of messages in system
25428b6f5e65SJeroen Ruigrok van der Werven
25438b6f5e65SJeroen Ruigrok van der Wervenoptions 	NBUF=512	# Number of buffer headers
25448b6f5e65SJeroen Ruigrok van der Werven
25458b6f5e65SJeroen Ruigrok van der Wervenoptions 	NMBCLUSTERS=1024	# Number of mbuf clusters
25468b6f5e65SJeroen Ruigrok van der Werven
2547bc0e3a03SJeroen Ruigrok van der Wervenoptions 	SCSI_NCR_DEBUG
2548bc0e3a03SJeroen Ruigrok van der Wervenoptions 	SCSI_NCR_MAX_SYNC=10000
2549bc0e3a03SJeroen Ruigrok van der Wervenoptions 	SCSI_NCR_MAX_WIDE=1
2550bc0e3a03SJeroen Ruigrok van der Wervenoptions 	SCSI_NCR_MYADDR=7
25518b6f5e65SJeroen Ruigrok van der Werven
25528b6f5e65SJeroen Ruigrok van der Wervenoptions 	SC_DEBUG_LEVEL=5	# Syscons debug level
25538b6f5e65SJeroen Ruigrok van der Wervenoptions 	SC_RENDER_DEBUG	# syscons rendering debugging
25548b6f5e65SJeroen Ruigrok van der Werven
2555bc0e3a03SJeroen Ruigrok van der Wervenoptions 	SHOW_BUSYBUFS	# List buffers that prevent root unmount
2556bc0e3a03SJeroen Ruigrok van der Wervenoptions 	SLIP_IFF_OPTS
25578b6f5e65SJeroen Ruigrok van der Wervenoptions 	VFS_BIO_DEBUG	# VFS buffer I/O debugging
25588b6f5e65SJeroen Ruigrok van der Werven
2559316ec49aSScott Longoptions 	KSTACK_MAX_PAGES=32 # Maximum pages to give the kernel stack
2560316ec49aSScott Long
2561662d3818SScott Long# Adaptec Array Controller driver options
2562662d3818SScott Longoptions 	AAC_DEBUG	# Debugging levels:
2563662d3818SScott Long				# 0 - quiet, only emit warnings
2564662d3818SScott Long				# 1 - noisy, emit major function
2565662d3818SScott Long				#     points and things done
2566662d3818SScott Long				# 2 - extremely noisy, emit trace
2567662d3818SScott Long				#     items in loops, etc.
2568662d3818SScott Long
25691e9ea774SBruce Evans# Yet more undocumented options for linting.
25701e9ea774SBruce Evans# BKTR_ALLOC_PAGES has no effect except to cause warnings, and
25711e9ea774SBruce Evans# BROOKTREE_ALLOC_PAGES hasn't actually been superseded by it, since the
25721e9ea774SBruce Evans# driver still mostly spells this option BROOKTREE_ALLOC_PAGES.
257325388b6cSBruce Evans##options 	BKTR_ALLOC_PAGES=(217*4+1)
257425388b6cSBruce Evansoptions 	BROOKTREE_ALLOC_PAGES=(217*4+1)
25751e9ea774SBruce Evansoptions 	MAXFILES=999
25761e9ea774SBruce Evansoptions 	NDEVFSINO=1025
25771e9ea774SBruce Evansoptions 	NDEVFSOVERFLOW=32769
25786e818956SDavid E. O'Brien
25796e818956SDavid E. O'Brien# Yet more undocumented options for linting.
25806e818956SDavid E. O'Brienoptions 	VGA_DEBUG
2581