NOTES revision 171732
11573Srgrimes# $FreeBSD: head/sys/conf/NOTES 171732 2007-08-05 16:16:15Z bz $
21573Srgrimes#
31573Srgrimes# NOTES -- Lines that can be cut/pasted into kernel and hints configs.
41573Srgrimes#
51573Srgrimes# Lines that begin with 'device', 'options', 'machine', 'ident', 'maxusers',
61573Srgrimes# 'makeoptions', 'hints', etc. go into the kernel configuration that you
71573Srgrimes# run config(8) with.
81573Srgrimes#
91573Srgrimes# Lines that begin with 'hint.' are NOT for config(8), they go into your
101573Srgrimes# hints file.  See /boot/device.hints and/or the 'hints' config(8) directive.
111573Srgrimes#
121573Srgrimes# Please use ``make LINT'' to create an old-style LINT file if you want to
131573Srgrimes# do kernel test-builds.
141573Srgrimes#
151573Srgrimes# This file contains machine independent kernel configuration notes.  For
161573Srgrimes# machine dependent notes, look in /sys/<arch>/conf/NOTES.
171573Srgrimes#
181573Srgrimes
191573Srgrimes#
201573Srgrimes# NOTES conventions and style guide:
211573Srgrimes#
221573Srgrimes# Large block comments should begin and end with a line containing only a
231573Srgrimes# comment character.
241573Srgrimes#
251573Srgrimes# To describe a particular object, a block comment (if it exists) should
261573Srgrimes# come first.  Next should come device, options, and hints lines in that
271573Srgrimes# order.  All device and option lines must be described by a comment that
281573Srgrimes# doesn't just expand the device or option name.  Use only a concise
291573Srgrimes# comment on the same line if possible.  Very detailed descriptions of
301573Srgrimes# devices and subsystems belong in man pages.
311573Srgrimes#
321573Srgrimes# A space followed by a tab separates 'options' from an option name.  Two
331573Srgrimes# spaces followed by a tab separate 'device' from a device name.  Comments
3423668Speter# after an option or device should use one space after the comment character.
351573Srgrimes# To comment out a negative option that disables code and thus should not be
3690041Sobrien# enabled for LINT builds, precede 'options' with "#!".
3790041Sobrien#
381573Srgrimes
39108626Stjr#
401573Srgrimes# This is the ``identification'' of the kernel.  Usually this should
417615Swpaul# be the same as the name of your kernel.
4295459Sdes#
437615Swpaulident		LINT
441573Srgrimes
457615Swpaul#
469978Swpaul# The `maxusers' parameter controls the static sizing of a number of
479978Swpaul# internal system tables by a formula defined in subr_param.c.
489978Swpaul# Omitting this parameter or setting it to 0 will cause the system to
499978Swpaul# auto-size based on physical memory.
509978Swpaul#
519978Swpaulmaxusers	10
529978Swpaul
539978Swpaul#
549978Swpaul# The `makeoptions' parameter allows variables to be passed to the
559978Swpaul# generated Makefile in the build area.
569978Swpaul#
579978Swpaul# CONF_CFLAGS gives some extra compiler flags that are added to ${CFLAGS}
589978Swpaul# after most other flags.  Here we use it to inhibit use of non-optimal
599978Swpaul# gcc built-in functions (e.g., memcmp).
609978Swpaul#
619978Swpaul# DEBUG happens to be magic.
629978Swpaul# The following is equivalent to 'config -g KERNELNAME' and creates
639978Swpaul# 'kernel.debug' compiled with -g debugging as well as a normal
649978Swpaul# 'kernel'.  Use 'make install.debug' to install the debug kernel
659978Swpaul# but that isn't normally necessary as the debug symbols are not loaded
669978Swpaul# by the kernel and are not useful there anyway.
679978Swpaul#
689978Swpaul# KERNEL can be overridden so that you can change the default name of your
699978Swpaul# kernel.
709978Swpaul#
719978Swpaul# MODULES_OVERRIDE can be used to limit modules built to a specific list.
729978Swpaul#
739978Swpaulmakeoptions	CONF_CFLAGS=-fno-builtin  #Don't allow use of memcmp, etc.
749978Swpaul#makeoptions	DEBUG=-g		#Build kernel with gdb(1) debug symbols
759978Swpaul#makeoptions	KERNEL=foo		#Build kernel "foo" and install "/foo"
769978Swpaul# Only build ext2fs module plus those parts of the sound system I need.
779978Swpaul#makeoptions	MODULES_OVERRIDE="ext2fs sound/sound sound/driver/maestro3"
789978Swpaulmakeoptions	DESTDIR=/tmp
799978Swpaul
809978Swpaul#
819978Swpaul# FreeBSD processes are subject to certain limits to their consumption
829978Swpaul# of system resources.  See getrlimit(2) for more details.  Each
839978Swpaul# resource limit has two values, a "soft" limit and a "hard" limit.
8430288Swpaul# The soft limits can be modified during normal system operation, but
857615Swpaul# the hard limits are set at boot time.  Their default values are
867615Swpaul# in sys/<arch>/include/vmparam.h.  There are two ways to change them:
877615Swpaul# 
889978Swpaul# 1.  Set the values at kernel build time.  The options below are one
899978Swpaul#     way to allow that limit to grow to 1GB.  They can be increased
909978Swpaul#     further by changing the parameters:
919978Swpaul#	
929978Swpaul# 2.  In /boot/loader.conf, set the tunables kern.maxswzone,
9310521Swpaul#     kern.maxbcache, kern.maxtsiz, kern.dfldsiz, kern.maxdsiz,
947615Swpaul#     kern.dflssiz, kern.maxssiz and kern.sgrowsiz.
959978Swpaul#
967615Swpaul# The options in /boot/loader.conf override anything in the kernel
977615Swpaul# configuration file.  See the function init_param1 in
989978Swpaul# sys/kern/subr_param.c for more details.
991573Srgrimes#
1009978Swpaul
1011573Srgrimesoptions 	MAXDSIZ=(1024UL*1024*1024)
1021573Srgrimesoptions 	MAXSSIZ=(128UL*1024*1024)
1031573Srgrimesoptions 	DFLDSIZ=(1024UL*1024*1024)
1041573Srgrimes
1051573Srgrimes#
1061573Srgrimes# BLKDEV_IOSIZE sets the default block size used in user block
1071573Srgrimes# device I/O.  Note that this value will be overridden by the label
1081573Srgrimes# when specifying a block device from a label with a non-0
1091573Srgrimes# partition blocksize.  The default is PAGE_SIZE.
1101573Srgrimes#
1111573Srgrimesoptions 	BLKDEV_IOSIZE=8192
1121573Srgrimes
1131573Srgrimes#
1141573Srgrimes# MAXPHYS and DFLTPHYS
1151573Srgrimes#
1161573Srgrimes# These are the max and default 'raw' I/O block device access sizes.
1171573Srgrimes# Reads and writes will be split into DFLTPHYS chunks. Some applications
1181573Srgrimes# have better performance with larger raw I/O access sizes. Typically
1191573Srgrimes# MAXPHYS should be twice the size of DFLTPHYS. Note that certain VM
1201573Srgrimes# parameters are derived from these values and making them too large
1211573Srgrimes# can make an an unbootable kernel.
1221573Srgrimes#
1231573Srgrimes# The defaults are 64K and 128K respectively.
1241573Srgrimesoptions 	DFLTPHYS=(64*1024)
1251573Srgrimesoptions 	MAXPHYS=(128*1024)
1261573Srgrimes
1271573Srgrimes
1281573Srgrimes# This allows you to actually store this configuration file into
1291573Srgrimes# the kernel binary itself, where it may be later read by saying:
1301573Srgrimes#    strings -n 3 /boot/kernel/kernel | sed -n 's/^___//p' > MYKERNEL
1311573Srgrimes#
1321573Srgrimesoptions 	INCLUDE_CONFIG_FILE     # Include this file in kernel
1331573Srgrimes
1341573Srgrimesoptions 	GEOM_AES		# Don't use, use GEOM_BDE
1351573Srgrimesoptions 	GEOM_BDE		# Disk encryption.
136132793Sdesoptions 	GEOM_BSD		# BSD disklabels
137132793Sdesoptions 	GEOM_CACHE		# Disk cache.
138132793Sdesoptions 	GEOM_CONCAT		# Disk concatenation.
139132793Sdesoptions 	GEOM_ELI		# Disk encryption.
140132793Sdesoptions 	GEOM_FOX		# Redundant path mitigation
141132793Sdesoptions 	GEOM_GATE		# Userland services.
142132793Sdesoptions 	GEOM_JOURNAL		# Journaling.
1431573Srgrimesoptions 	GEOM_LABEL		# Providers labelization.
1441573Srgrimesoptions 	GEOM_MBR		# DOS/MBR partitioning
1451573Srgrimesoptions 	GEOM_MIRROR		# Disk mirroring.
1461573Srgrimesoptions 	GEOM_MULTIPATH		# Disk multipath
1471573Srgrimesoptions 	GEOM_NOP		# Test class.
1481573Srgrimesoptions 	GEOM_PART_APM		# Apple partitioning
1491573Srgrimesoptions 	GEOM_PART_GPT		# GPT partitioning
1501573Srgrimesoptions 	GEOM_PART_MBR		# MBR partitioning
1511573Srgrimesoptions 	GEOM_PC98		# NEC PC9800 partitioning
152132793Sdesoptions 	GEOM_RAID3		# RAID3 functionality.
1531573Srgrimesoptions 	GEOM_SHSEC		# Shared secret.
1549978Swpauloptions 	GEOM_STRIPE		# Disk striping.
1559978Swpauloptions 	GEOM_SUNLABEL		# Sun/Solaris partitioning
1569978Swpauloptions 	GEOM_UZIP		# Read-only compressed disks
1579978Swpauloptions 	GEOM_VOL		# Volume names from UFS superblock
1589978Swpauloptions 	GEOM_ZERO		# Performance testing helper.
1597336Swpaul
1607289Swpaul#
1617336Swpaul# The root device and filesystem type can be compiled in;
1627289Swpaul# this provides a fallback option if the root device cannot
1637336Swpaul# be correctly guessed by the bootstrap code, or an override if
1641573Srgrimes# the RB_DFLTROOT flag (-r) is specified when booting the kernel.
1651573Srgrimes#
1661573Srgrimesoptions 	ROOTDEVNAME=\"ufs:da0s2e\"
1679978Swpaul
16810521Swpaul
16910521Swpaul#####################################################################
1709978Swpaul# Scheduler options:
17115264Swpaul#
1729978Swpaul# Specifying one of SCHED_4BSD or SCHED_ULE is mandatory.  These options
1739978Swpaul# select which scheduler is compiled in.
1749978Swpaul#
1759978Swpaul# SCHED_4BSD is the historical, proven, BSD scheduler.  It has a global run
1769978Swpaul# queue and no CPU affinity which makes it suboptimal for SMP.  It has very
1779978Swpaul# good interactivity and priority selection.
1789978Swpaul#
1799978Swpaul# SCHED_ULE provides significant performance advantages over 4BSD on many
1809978Swpaul# workloads on SMP machines.  It supports cpu-affinity, per-cpu runqueues
1819978Swpaul# and scheduler locks.  It also has a stronger notion of interactivity 
1829978Swpaul# which leads to better responsiveness even on uniprocessor machines.  This
1839978Swpaul# will eventually become the default scheduler.
1849978Swpaul#
1859978Swpauloptions 	SCHED_4BSD
1869978Swpaul#options 	SCHED_ULE
1879978Swpaul
1889978Swpaul#####################################################################
1899978Swpaul# SMP OPTIONS:
1909978Swpaul#
1919978Swpaul# SMP enables building of a Symmetric MultiProcessor Kernel.
1929978Swpaul
1939978Swpaul# Mandatory:
19410521Swpauloptions 	SMP			# Symmetric MultiProcessor Kernel
19510521Swpaul
19612585Swpaul# ADAPTIVE_MUTEXES changes the behavior of blocking mutexes to spin
19712585Swpaul# if the thread that currently owns the mutex is executing on another
1989978Swpaul# CPU.  This behaviour is enabled by default, so this option can be used
19910521Swpaul# to disable it.
2009978Swpauloptions 	NO_ADAPTIVE_MUTEXES
201137675Sbz
2029978Swpaul# ADAPTIVE_RWLOCKS changes the behavior of reader/writer locks to spin
2031573Srgrimes# if the thread that currently owns the rwlock is executing on another
2041573Srgrimes# CPU.  This behaviour is enabled by default, so this option can be used
2051573Srgrimes# to disable it.
206235740Sghelmeroptions 	NO_ADAPTIVE_RWLOCKS
2071573Srgrimes
2089978Swpaul# ADAPTIVE_GIANT causes the Giant lock to also be made adaptive when
2099978Swpaul# running without NO_ADAPTIVE_MUTEXES.  Normally, because Giant is assumed
2101573Srgrimes# to be held for extended periods, contention on Giant will cause a thread
2111573Srgrimes# to sleep rather than spinning.
2121573Srgrimesoptions 	ADAPTIVE_GIANT
2131573Srgrimes
2141573Srgrimes# ADAPTIVE_SX changes the behavior of sx locks to spin if the thread
2151573Srgrimes# that currently owns the lock is executing on another CPU.  Note that
2161573Srgrimes# in addition to enabling this option, individual sx locks must be
2171573Srgrimes# initialized with the SX_ADAPTIVESPIN flag.
2181573Srgrimesoptions 	ADAPTIVE_SX
219132793Sdes
2201573Srgrimes# MUTEX_NOINLINE forces mutex operations to call functions to perform each
2219978Swpaul# operation rather than inlining the simple cases.  This can be used to
2229978Swpaul# shrink the size of the kernel text segment.  Note that this behavior is
2239978Swpaul# already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
2241573Srgrimes# and WITNESS options.
2251573Srgrimesoptions 	MUTEX_NOINLINE
2261573Srgrimes
2271573Srgrimes# RWLOCK_NOINLINE forces rwlock operations to call functions to perform each
2281573Srgrimes# operation rather than inlining the simple cases.  This can be used to
2291573Srgrimes# shrink the size of the kernel text segment.  Note that this behavior is
2301573Srgrimes# already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
2311573Srgrimes# and WITNESS options.
2321573Srgrimesoptions 	RWLOCK_NOINLINE
2331573Srgrimes
2341573Srgrimes# SX_NOINLINE forces sx lock operations to call functions to perform each
2351573Srgrimes# operation rather than inlining the simple cases.  This can be used to
2361573Srgrimes# shrink the size of the kernel text segment.  Note that this behavior is
2371573Srgrimes# already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
2381573Srgrimes# and WITNESS options.
239132793Sdesoptions 	SX_NOINLINE
2401573Srgrimes
24190041Sobrien# SMP Debugging Options:
24290041Sobrien#
2431573Srgrimes# PREEMPTION allows the threads that are in the kernel to be preempted
2441573Srgrimes#	  by higher priority threads.  It helps with interactivity and
2451573Srgrimes#	  allows interrupt threads to run sooner rather than waiting.
2461573Srgrimes#	  WARNING! Only tested on amd64 and i386.
2471573Srgrimes# FULL_PREEMPTION instructs the kernel to preempt non-realtime kernel
2481573Srgrimes#	  threads.  Its sole use is to expose race conditions and other
2491573Srgrimes#	  bugs during development.  Enabling this option will reduce
2501573Srgrimes#	  performance and increase the frequency of kernel panics by
2511573Srgrimes#	  design.  If you aren't sure that you need it then you don't.
2521573Srgrimes#	  Relies on the PREEMPTION option.  DON'T TURN THIS ON.
2531573Srgrimes# MUTEX_DEBUG enables various extra assertions in the mutex code.
2541573Srgrimes# SLEEPQUEUE_PROFILING enables rudimentary profiling of the hash table
2551573Srgrimes#	  used to hold active sleep queues.
2561573Srgrimes# TURNSTILE_PROFILING enables rudimentary profiling of the hash table
2571573Srgrimes#	  used to hold active lock queues.
2581573Srgrimes# WITNESS enables the witness code which detects deadlocks and cycles
2591573Srgrimes#         during locking operations.
2601573Srgrimes# WITNESS_KDB causes the witness code to drop into the kernel debugger if
2611573Srgrimes#	  a lock hierarchy violation occurs or if locks are held when going to
2621573Srgrimes#	  sleep.
2631573Srgrimes# WITNESS_SKIPSPIN disables the witness checks on spin mutexes.
2641573Srgrimesoptions 	PREEMPTION
2651573Srgrimesoptions 	FULL_PREEMPTION
2661573Srgrimesoptions 	MUTEX_DEBUG
2671573Srgrimesoptions 	WITNESS
2681573Srgrimesoptions 	WITNESS_KDB
2691573Srgrimesoptions 	WITNESS_SKIPSPIN
270140194Sjon
2717149Swpaul# LOCK_PROFILING - Profiling locks.  See LOCK_PROFILING(9) for details.
2727223Swpauloptions 	LOCK_PROFILING
2737149Swpaul# Set the number of buffers and the hash size.  The hash size MUST be larger
2741573Srgrimes# than the number of buffers.  Hash size should be prime.
2751573Srgrimesoptions 	MPROF_BUFFERS="1536"
2769978Swpauloptions 	MPROF_HASH_SIZE="1543"
277132793Sdes
278132793Sdes# Profiling for internal hash tables.
2799978Swpauloptions 	SLEEPQUEUE_PROFILING
280132793Sdesoptions 	TURNSTILE_PROFILING
281132793Sdes
28231180Swpaul
2839978Swpaul#####################################################################
28431180Swpaul# COMPATIBILITY OPTIONS
28552856Sache
28631180Swpaul#
28715264Swpaul# Implement system calls compatible with 4.3BSD and older versions of
28833950Ssteve# FreeBSD.  You probably do NOT want to remove this as much current code
28933950Ssteve# still relies on the 4.3 emulation.  Note that some architectures that
29052856Sache# are supported by FreeBSD do not include support for certain important
29133950Ssteve# aspects of this compatibility option, namely those related to the
29233950Ssteve# signal delivery mechanism.
293235739Sghelmer#
29452856Sacheoptions 	COMPAT_43
29533950Ssteve
29615839Swpaul# Old tty interface.
29715839Swpauloptions 	COMPAT_43TTY
298235739Sghelmer
2999978Swpaul# Enable FreeBSD4 compatibility syscalls
3009978Swpauloptions 	COMPAT_FREEBSD4
301132793Sdes
302148317Sjon# Enable FreeBSD5 compatibility syscalls
303148317Sjonoptions 	COMPAT_FREEBSD5
3049978Swpaul
305148317Sjon# Enable FreeBSD6 compatibility syscalls
306148317Sjonoptions 	COMPAT_FREEBSD6
307148317Sjon
308148317Sjon#
309148317Sjon# These three options provide support for System V Interface
310148317Sjon# Definition-style interprocess communication, in the form of shared
311148317Sjon# memory, semaphores, and message queues, respectively.
312236402Sghelmer#
313235739Sghelmeroptions 	SYSVSHM
314235739Sghelmeroptions 	SYSVSEM
315235739Sghelmeroptions 	SYSVMSG
316236402Sghelmer
317235739Sghelmer
318235739Sghelmer#####################################################################
319236402Sghelmer# DEBUGGING OPTIONS
320235739Sghelmer
321235739Sghelmer#
322235739Sghelmer# Compile with kernel debugger related code.
323236402Sghelmer#
324235739Sghelmeroptions 	KDB
325235739Sghelmer
326236402Sghelmer#
327236402Sghelmer# Print a stack trace of the current thread on the console for a panic.
328148317Sjon#
329148317Sjonoptions 	KDB_TRACE
330236402Sghelmer
331148317Sjon#
332148317Sjon# Don't enter the debugger for a panic. Intended for unattended operation
333148317Sjon# where you may want to enter the debugger from the console, but still want
334236402Sghelmer# the machine to recover from a panic.
335236402Sghelmer#
336148317Sjonoptions 	KDB_UNATTENDED
337148317Sjon
338148317Sjon#
339148317Sjon# Enable the ddb debugger backend.
340148317Sjon#
341148317Sjonoptions 	DDB
342235739Sghelmer
343148317Sjon#
3449978Swpaul# Print the numerical value of symbols in addition to the symbolic
3459978Swpaul# representation.
3469978Swpaul#
3479978Swpauloptions 	DDB_NUMSYM
3481573Srgrimes
3491573Srgrimes#
3501573Srgrimes# Enable the remote gdb debugger backend.
3511573Srgrimes#
352132793Sdesoptions 	GDB
3531573Srgrimes
3541573Srgrimes#
3557336Swpaul# SYSCTL_DEBUG enables a 'sysctl' debug tree that can be used to dump the
3569287Swpaul# contents of the registered sysctl nodes on the console.  It is disabled by
3577336Swpaul# default because it generates excessively verbose console output that can
3587336Swpaul# interfere with serial console operation.
3597336Swpaul#
3609978Swpauloptions 	SYSCTL_DEBUG
3619978Swpaul
3629978Swpaul#
3631573Srgrimes# DEBUG_MEMGUARD builds and enables memguard(9), a replacement allocator
3649978Swpaul# for the kernel used to detect modify-after-free scenarios.  See the
36515264Swpaul# memguard(9) man page for more information on usage.
3669978Swpaul#
3679978Swpauloptions 	DEBUG_MEMGUARD
3689978Swpaul
369148317Sjon#
370148317Sjon# DEBUG_REDZONE enables buffer underflows and buffer overflows detection for
371148317Sjon# malloc(9).
372148317Sjon#
373148317Sjonoptions 	DEBUG_REDZONE
374148317Sjon
375148317Sjon#
376148317Sjon# KTRACE enables the system-call tracing facility ktrace(2).  To be more
377148317Sjon# SMP-friendly, KTRACE uses a worker thread to process most trace events
378148317Sjon# asynchronously to the thread generating the event.  This requires a
379148317Sjon# pre-allocated store of objects representing trace events.  The
380148317Sjon# KTRACE_REQUEST_POOL option specifies the initial size of this store.
381148317Sjon# The size of the pool can be adjusted both at boottime and runtime via
382148317Sjon# the kern.ktrace_request_pool tunable and sysctl.
383148317Sjon#
384148317Sjonoptions 	KTRACE			#kernel tracing
385148317Sjonoptions 	KTRACE_REQUEST_POOL=101
386148317Sjon
387148317Sjon#
3889978Swpaul# KTR is a kernel tracing mechanism imported from BSD/OS.  Currently
389148317Sjon# it has no userland interface aside from a few sysctl's.  It is
390148317Sjon# enabled with the KTR option.  KTR_ENTRIES defines the number of
3919978Swpaul# entries in the circular trace buffer; it must be a power of two.
392235739Sghelmer# KTR_COMPILE defines the mask of events to compile into the kernel as
393148317Sjon# defined by the KTR_* constants in <sys/ktr.h>.  KTR_MASK defines the
394148317Sjon# initial value of the ktr_mask variable which determines at runtime
395148317Sjon# what events to trace.  KTR_CPUMASK determines which CPU's log
396148317Sjon# events, with bit X corresponding to CPU X.  KTR_VERBOSE enables
397235739Sghelmer# dumping of KTR events to the console by default.  This functionality
398148317Sjon# can be toggled via the debug.ktr_verbose sysctl and defaults to off
399235739Sghelmer# if KTR_VERBOSE is not defined.
4009978Swpaul#
40130390Swpauloptions 	KTR
4029978Swpauloptions 	KTR_ENTRIES=1024
4039978Swpauloptions 	KTR_COMPILE=(KTR_INTR|KTR_PROC)
40430390Swpauloptions 	KTR_MASK=KTR_INTR
4051573Srgrimesoptions 	KTR_CPUMASK=0x3
4069978Swpauloptions 	KTR_VERBOSE
4079978Swpaul
4089978Swpaul#
4091573Srgrimes# ALQ(9) is a facility for the asynchronous queuing of records from the kernel
4101573Srgrimes# to a vnode, and is employed by services such as KTR(4) to produce trace
4111573Srgrimes# files based on a kernel event stream.  Records are written asynchronously
4121573Srgrimes# in a worker thread.
4131573Srgrimes#
4141573Srgrimesoptions 	ALQ
4151573Srgrimesoptions 	KTR_ALQ
4161573Srgrimes
4171573Srgrimes#
4181573Srgrimes# The INVARIANTS option is used in a number of source files to enable
4191573Srgrimes# extra sanity checking of internal structures.  This support is not
420132793Sdes# enabled by default because of the extra time it would take to check
4211573Srgrimes# for these conditions, which can only occur as a result of
422236402Sghelmer# programming errors.
423236402Sghelmer#
424236402Sghelmeroptions 	INVARIANTS
425236402Sghelmer
426236402Sghelmer#
4279287Swpaul# The INVARIANT_SUPPORT option makes us compile in support for
42890041Sobrien# verifying some of the internal structures.  It is a prerequisite for
4299287Swpaul# 'INVARIANTS', as enabling 'INVARIANTS' will make these functions be
4301573Srgrimes# called.  The intent is that you can set 'INVARIANTS' for single
4311573Srgrimes# source files (by changing the source file or specifying it on the
4321573Srgrimes# command line) if you have 'INVARIANT_SUPPORT' enabled.  Also, if you
4331573Srgrimes# wish to build a kernel module with 'INVARIANTS', then adding
4341573Srgrimes# 'INVARIANT_SUPPORT' to your kernel will provide all the necessary
4351573Srgrimes# infrastructure without the added overhead.
4361573Srgrimes#
4371573Srgrimesoptions 	INVARIANT_SUPPORT
4381573Srgrimes
4391573Srgrimes#
4401573Srgrimes# The DIAGNOSTIC option is used to enable extra debugging information
4411573Srgrimes# from some parts of the kernel.  As this makes everything more noisy,
4421573Srgrimes# it is disabled by default.
4439287Swpaul#
4449287Swpauloptions 	DIAGNOSTIC
4459287Swpaul
4469287Swpaul#
4479287Swpaul# REGRESSION causes optional kernel interfaces necessary only for regression
4489287Swpaul# testing to be enabled.  These interfaces may constitute security risks
4499287Swpaul# when enabled, as they permit processes to easily modify aspects of the
4501573Srgrimes# run-time environment to reproduce unlikely or unusual (possibly normally
4519287Swpaul# impossible) scenarios.
4521573Srgrimes#
4531573Srgrimesoptions 	REGRESSION
4541573Srgrimes
4551573Srgrimes#
4567149Swpaul# RESTARTABLE_PANICS allows one to continue from a panic as if it were
4577149Swpaul# a call to the debugger to continue from a panic as instead.  It is only
4581573Srgrimes# useful if a kernel debugger is present.  To restart from a panic, reset
459236402Sghelmer# the panicstr variable to NULL and continue execution.  This option is
460235740Sghelmer# for development use only and should NOT be used in production systems
461235740Sghelmer# to "workaround" a panic.
462236402Sghelmer#
463236402Sghelmer#options 	RESTARTABLE_PANICS
4641573Srgrimes
4651573Srgrimes#
4669287Swpaul# This option let some drivers co-exist that can't co-exist in a running
4679287Swpaul# system.  This is used to be able to compile all kernel code in one go for
4689287Swpaul# quality assurance purposes (like this file, which the option takes it name
4691573Srgrimes# from.)
470236402Sghelmer#
4719287Swpauloptions 	COMPILING_LINT
4729287Swpaul
4739287Swpaul
4749287Swpaul#####################################################################
4759287Swpaul# PERFORMANCE MONITORING OPTIONS
4769287Swpaul
477236402Sghelmer#
478236402Sghelmer# The hwpmc driver that allows the use of in-CPU performance monitoring
4799287Swpaul# counters for performance monitoring.  The base kernel needs to configured
480236402Sghelmer# with the 'options' line, while the hwpmc device can be either compiled
481236402Sghelmer# in or loaded as a loadable kernel module.
482236402Sghelmer#
483236402Sghelmer# Additional configuration options may be required on specific architectures,
484236402Sghelmer# please see hwpmc(4).
485236402Sghelmer
486236402Sghelmerdevice  	hwpmc			# Driver (also a loadable module)
487236402Sghelmeroptions 	HWPMC_HOOKS		# Other necessary kernel hooks
488236402Sghelmer
489236402Sghelmer
490236402Sghelmer#####################################################################
491236402Sghelmer# NETWORKING OPTIONS
492236402Sghelmer
493236402Sghelmer#
494236402Sghelmer# Protocol families
495236402Sghelmer#
496236402Sghelmeroptions 	INET			#Internet communications protocols
497236402Sghelmeroptions 	INET6			#IPv6 communications protocols
498236402Sghelmer
499236402Sghelmer# In order to enable IPSEC you MUST also add device crypto to 
500236402Sghelmer# your kernel configuration
5011573Srgrimesoptions 	IPSEC			#IP security (requires device crypto)
502235740Sghelmer#options 	IPSEC_DEBUG		#debug for IP security
503235740Sghelmer#
5049287Swpaul# Set IPSEC_FILTERTUNNEL to force packets coming through a tunnel
5059287Swpaul# to be processed by any configured packet filtering twice.
5069287Swpaul# The default is that packets coming out of a tunnel are _not_ processed;
5079287Swpaul# they are assumed trusted.
5089287Swpaul#
5099287Swpaul# IPSEC history is preserved for such packets, and can be filtered
5109287Swpaul# using ipfw(8)'s 'ipsec' keyword, when this option is enabled.
511236402Sghelmer#
512236402Sghelmer#options 	IPSEC_FILTERTUNNEL	#filter ipsec packets from a tunnel
513236402Sghelmer
514236402Sghelmeroptions 	IPX			#IPX/SPX communications protocols
515236402Sghelmer
516236402Sghelmeroptions 	NCP			#NetWare Core protocol
517236402Sghelmer
518236402Sghelmeroptions 	NETATALK		#Appletalk communications protocols
519236402Sghelmeroptions 	NETATALKDEBUG		#Appletalk debugging
5209287Swpaul
5211573Srgrimes#
5221573Srgrimes# SMB/CIFS requester
5231573Srgrimes# NETSMB enables support for SMB protocol, it requires LIBMCHAIN and LIBICONV
5247175Swpaul# options.
5251573Srgrimesoptions 	NETSMB			#SMB/CIFS requester
52623668Speter
52723668Speter# mchain library. It can be either loaded as KLD or compiled into kernel
52823668Speteroptions 	LIBMCHAIN
52923668Speter
5301573Srgrimes# libalias library, performing NAT
5311573Srgrimesoptions		LIBALIAS
5321573Srgrimes
5331573Srgrimes#
5341573Srgrimes# SCTP is a NEW transport protocol defined by
5351573Srgrimes# RFC2960 updated by RFC3309 and RFC3758.. and
5361573Srgrimes# soon to have a new base RFC and many many more
5371573Srgrimes# extensions. This release supports all the extensions
5381573Srgrimes# including many drafts (most about to become RFC's).
539132793Sdes# It is the premeier SCTP implementation in the NET
5401573Srgrimes# and is quite well tested.
541237159Skib#
54290041Sobrien# Note YOU MUST have both INET and INET6 defined.
5431573Srgrimes# you don't have to enable V6, but SCTP is 
5441573Srgrimes# dual stacked and so far we have not teased apart
54520957Swpaul# the V6 and V4.. since an association can span
5467149Swpaul# both a V6 and V4 address at the SAME time :-)
5477149Swpaul#
5487149Swpauloptions         SCTP
549235740Sghelmer# There are bunches of options:
5501573Srgrimes# this one turns on all sorts of
5517149Swpaul# nastly printing that you can
5527149Swpaul# do. Its all controled by a
5537149Swpaul# bit mask (settable by socket opt and
5547223Swpaul# by sysctl). Including will not cause
5557149Swpaul# logging until you set the bits.. but it
5567223Swpaul# can be quite verbose.. so without this
557236402Sghelmer# option we don't do any of the tests for
5587223Swpaul# bits and prints.. which makes the code run
5599978Swpaul# faster.. if you are not debugging don't use.
5609978Swpauloptions SCTP_DEBUG
5619978Swpaul#
5629978Swpaul# This option turns off the CRC32c checksum. Basically
5639978Swpaul# You will not be able to talk to anyone else that
5649978Swpaul# has not done this. Its more for expermentation to
5657149Swpaul# see how much CPU the CRC32c really takes. Most new
56620957Swpaul# cards for TCP support checksum offload.. so this 
5677149Swpaul# option gives you a "view" into what SCTP would be
5687149Swpaul# like with such an offload (which only exists in
5697149Swpaul# high in iSCSI boards so far). With the new
570235740Sghelmer# splitting 8's algorithm its not as bad as it used
5711573Srgrimes# to be.. but it does speed things up try only
5727149Swpaul# for in a captured lab environment :-)
5737149Swpauloptions SCTP_WITH_NO_CSUM
5747149Swpaul#
5757149Swpaul
5767149Swpaul#
5777149Swpaul# All that options after that turn on specific types of
5787149Swpaul# logging. You can monitor CWND growth, flight size
5797149Swpaul# and all sorts of things. Go look at the code and
5801573Srgrimes# see. I have used this to produce interesting 
5811573Srgrimes# charts and graphs as well :->
5821573Srgrimes# 
5831573Srgrimes# I have not yet commited the tools to get and print
5841573Srgrimes# the logs, I will do that eventually .. before then
5851573Srgrimes# if you want them send me an email rrs@freebsd.org
5861573Srgrimes# You basically must have KTR enabled for these
5871573Srgrimes# and you then set the sysctl to turn on/off various
5881573Srgrimes# logging bits. Use ktrdump to pull the log and run
5891573Srgrimes# it through a dispaly program.. and graphs and other
5901573Srgrimes# things too.
5911573Srgrimes#
5921573Srgrimesoptions 	SCTP_LOCK_LOGGING
593235740Sghelmeroptions 	SCTP_MBUF_LOGGING
594235740Sghelmeroptions 	SCTP_MBCNT_LOGGING
5951573Srgrimesoptions 	SCTP_PACKET_LOGGING
5961573Srgrimesoptions		SCTP_LTRACE_CHUNKS
597235740Sghelmeroptions 	SCTP_LTRACE_ERRORS
598235740Sghelmer
599235740Sghelmer
600235740Sghelmer# altq(9). Enable the base part of the hooks with the ALTQ option.
6011573Srgrimes# Individual disciplines must be built into the base system and can not be
6021573Srgrimes# loaded as modules at this point. ALTQ requires a stable TSC so if yours is
6031573Srgrimes# broken or changes with CPU throttling then you must also have the ALTQ_NOPCC
6041573Srgrimes# option.
6051573Srgrimesoptions 	ALTQ
6061573Srgrimesoptions 	ALTQ_CBQ	# Class Bases Queueing
6071573Srgrimesoptions 	ALTQ_RED	# Random Early Detection
6081573Srgrimesoptions 	ALTQ_RIO	# RED In/Out
6091573Srgrimesoptions 	ALTQ_HFSC	# Hierarchical Packet Scheduler
6101573Srgrimesoptions 	ALTQ_CDNR	# Traffic conditioner
6111573Srgrimesoptions 	ALTQ_PRIQ	# Priority Queueing
6121573Srgrimesoptions 	ALTQ_NOPCC	# Required if the TSC is unusable
6131573Srgrimesoptions 	ALTQ_DEBUG
6141573Srgrimes
6151573Srgrimes# netgraph(4). Enable the base netgraph code with the NETGRAPH option.
6161573Srgrimes# Individual node types can be enabled with the corresponding option
6171573Srgrimes# listed below; however, this is not strictly necessary as netgraph
618237159Skib# will automatically load the corresponding KLD module if the node type
619235740Sghelmer# is not already compiled into the kernel. Each type below has a
620235740Sghelmer# corresponding man page, e.g., ng_async(8).
621235740Sghelmeroptions 	NETGRAPH		# netgraph(4) system
622235740Sghelmeroptions 	NETGRAPH_DEBUG		# enable extra debugging, this
6231573Srgrimes					# affects netgraph(4) and nodes
624237159Skib# Node types
625237159Skiboptions 	NETGRAPH_ASYNC
626237159Skiboptions 	NETGRAPH_ATMLLC
627237159Skiboptions 	NETGRAPH_ATM_ATMPIF
6281573Srgrimesoptions 	NETGRAPH_BLUETOOTH		# ng_bluetooth(4)
6291573Srgrimesoptions 	NETGRAPH_BLUETOOTH_BT3C		# ng_bt3c(4)
6301573Srgrimes# options 	NETGRAPH_BLUETOOTH_H4		# ng_h4(4) - not MPSAFE
631237159Skiboptions 	NETGRAPH_BLUETOOTH_HCI		# ng_hci(4)
6321573Srgrimesoptions 	NETGRAPH_BLUETOOTH_L2CAP	# ng_l2cap(4)
6331573Srgrimesoptions 	NETGRAPH_BLUETOOTH_SOCKET	# ng_btsocket(4)
6341573Srgrimesoptions 	NETGRAPH_BLUETOOTH_UBT		# ng_ubt(4)
6351573Srgrimesoptions 	NETGRAPH_BLUETOOTH_UBTBCMFW	# ubtbcmfw(4)
6361573Srgrimesoptions 	NETGRAPH_BPF
6371573Srgrimesoptions 	NETGRAPH_BRIDGE
6381573Srgrimesoptions 	NETGRAPH_CAR
6391573Srgrimesoptions 	NETGRAPH_CISCO
6401573Srgrimesoptions 	NETGRAPH_DEFLATE
6411573Srgrimesoptions 	NETGRAPH_DEVICE
6421573Srgrimesoptions 	NETGRAPH_ECHO
6431573Srgrimesoptions 	NETGRAPH_EIFACE
6441573Srgrimesoptions 	NETGRAPH_ETHER
6451573Srgrimesoptions 	NETGRAPH_FEC
6461573Srgrimesoptions 	NETGRAPH_FRAME_RELAY
6471573Srgrimesoptions 	NETGRAPH_GIF
6481573Srgrimesoptions 	NETGRAPH_GIF_DEMUX
6491573Srgrimesoptions 	NETGRAPH_HOLE
6501573Srgrimesoptions 	NETGRAPH_IFACE
6511573Srgrimesoptions 	NETGRAPH_IP_INPUT
6529978Swpauloptions 	NETGRAPH_IPFW
6539978Swpauloptions 	NETGRAPH_KSOCKET
6549978Swpauloptions 	NETGRAPH_L2TP
6559978Swpauloptions 	NETGRAPH_LMI
6569978Swpaul# MPPC compression requires proprietary files (not included)
6579978Swpaul#options 	NETGRAPH_MPPC_COMPRESSION
6589978Swpauloptions 	NETGRAPH_MPPC_ENCRYPTION
6599978Swpauloptions 	NETGRAPH_NETFLOW
6609978Swpauloptions 	NETGRAPH_NAT
6619978Swpauloptions 	NETGRAPH_ONE2MANY
662235740Sghelmeroptions 	NETGRAPH_PPP
6631573Srgrimesoptions 	NETGRAPH_PPPOE
664options 	NETGRAPH_PPTPGRE
665options 	NETGRAPH_PRED1
666options 	NETGRAPH_RFC1490
667options 	NETGRAPH_SOCKET
668options 	NETGRAPH_SPLIT
669options 	NETGRAPH_SPPP
670options 	NETGRAPH_TAG
671options 	NETGRAPH_TCPMSS
672options 	NETGRAPH_TEE
673options 	NETGRAPH_TTY
674options 	NETGRAPH_UI
675options 	NETGRAPH_VJC
676
677# NgATM - Netgraph ATM
678options 	NGATM_ATM
679options 	NGATM_ATMBASE
680options 	NGATM_SSCOP
681options 	NGATM_SSCFU
682options 	NGATM_UNI
683options 	NGATM_CCATM
684
685device		mn	# Munich32x/Falc54 Nx64kbit/sec cards.
686
687#
688# Network interfaces:
689#  The `loop' device is MANDATORY when networking is enabled.
690#  The `ether' device provides generic code to handle
691#  Ethernets; it is MANDATORY when an Ethernet device driver is
692#  configured or token-ring is enabled.
693#  The `vlan' device implements the VLAN tagging of Ethernet frames
694#  according to IEEE 802.1Q.  It requires `device miibus'.
695#  The `wlan' device provides generic code to support 802.11
696#  drivers, including host AP mode; it is MANDATORY for the wi,
697#  ath, and awi drivers and will eventually be required by all 802.11 drivers.
698#  The `wlan_wep', `wlan_tkip', and `wlan_ccmp' devices provide
699#  support for WEP, TKIP, and AES-CCMP crypto protocols optionally
700#  used with 802.11 devices that depend on the `wlan' module.
701#  The `wlan_xauth' device provides support for external (i.e. user-mode)
702#  authenticators for use with 802.11 drivers that use the `wlan'
703#  module and support 802.1x and/or WPA security protocols.
704#  The `wlan_acl' device provides a MAC-based access control mechanism
705#  for use with 802.11 drivers operating in ap mode and using the
706#  `wlan' module.
707#  The `fddi' device provides generic code to support FDDI.
708#  The `arcnet' device provides generic code to support Arcnet.
709#  The `sppp' device serves a similar role for certain types
710#  of synchronous PPP links (like `cx', `ar').
711#  The `sl' device implements the Serial Line IP (SLIP) service.
712#  The `ppp' device implements the Point-to-Point Protocol.
713#  The `bpf' device enables the Berkeley Packet Filter.  Be
714#  aware of the legal and administrative consequences of enabling this
715#  option.  The number of devices determines the maximum number of
716#  simultaneous BPF clients programs runnable.  DHCP requires bpf.
717#  The `disc' device implements a minimal network interface,
718#  which throws away all packets sent and never receives any.  It is
719#  included for testing and benchmarking purposes.
720#  The `edsc' device implements a minimal Ethernet interface,
721#  which discards all packets sent and receives none.
722#  The `tap' device is a pty-like virtual Ethernet interface
723#  The `tun' device implements (user-)ppp and nos-tun
724#  The `gif' device implements IPv6 over IP4 tunneling,
725#  IPv4 over IPv6 tunneling, IPv4 over IPv4 tunneling and
726#  IPv6 over IPv6 tunneling.
727#  The `gre' device implements two types of IP4 over IP4 tunneling:
728#  GRE and MOBILE, as specified in the RFC1701 and RFC2004.
729#  The XBONEHACK option allows the same pair of addresses to be configured on
730#  multiple gif interfaces.
731#  The `faith' device captures packets sent to it and diverts them
732#  to the IPv4/IPv6 translation daemon.
733#  The `stf' device implements 6to4 encapsulation.
734#  The `ef' device provides support for multiple ethernet frame types
735#  specified via ETHER_* options. See ef(4) for details.
736#
737# The pf packet filter consists of three devices:
738#  The `pf' device provides /dev/pf and the firewall code itself.
739#  The `pflog' device provides the pflog0 interface which logs packets.
740#  The `pfsync' device provides the pfsync0 interface used for
741#   synchronization of firewall state tables (over the net).
742#  The PF_MPSAFE_UGID option enables a special workaround for a LOR with
743#   user/group rules that would otherwise lead to a deadlock.  This has
744#   performance implications and should be used with care.
745#
746# The PPP_BSDCOMP option enables support for compress(1) style entire
747# packet compression, the PPP_DEFLATE is for zlib/gzip style compression.
748# PPP_FILTER enables code for filtering the ppp data stream and selecting
749# events for resetting the demand dial activity timer - requires bpf.
750# See pppd(8) for more details.
751#
752device		ether			#Generic Ethernet
753device		vlan			#VLAN support (needs miibus)
754device		wlan			#802.11 support
755device		wlan_wep		#802.11 WEP support
756device		wlan_ccmp		#802.11 CCMP support
757device		wlan_tkip		#802.11 TKIP support
758device		wlan_xauth		#802.11 external authenticator support
759device		wlan_acl		#802.11 MAC ACL support
760device		wlan_amrr		#AMRR transmit rate control algorithm
761device		wlan_scan_ap		#802.11 AP mode scanning
762device		wlan_scan_sta		#802.11 STA mode scanning
763device		token			#Generic TokenRing
764device		fddi			#Generic FDDI
765device		arcnet			#Generic Arcnet
766device		sppp			#Generic Synchronous PPP
767device		loop			#Network loopback device
768device		bpf			#Berkeley packet filter
769device		disc			#Discard device based on loopback
770device		edsc			#Ethernet discard device
771device		tap			#Virtual Ethernet driver
772device		tun			#Tunnel driver (ppp(8), nos-tun(8))
773device		sl			#Serial Line IP
774device		gre			#IP over IP tunneling
775device		if_bridge		#Bridge interface
776device		pf			#PF OpenBSD packet-filter firewall
777device		pflog			#logging support interface for PF
778device		pfsync			#synchronization interface for PF
779options 	PF_MPSAFE_UGID		#Workaround LOR with user/group rules
780device		carp			#Common Address Redundancy Protocol
781device		enc			#IPsec interface
782device		ppp			#Point-to-point protocol
783options 	PPP_BSDCOMP		#PPP BSD-compress support
784options 	PPP_DEFLATE		#PPP zlib/deflate/gzip support
785options 	PPP_FILTER		#enable bpf filtering (needs bpf)
786device		lagg			#Link aggregation interface
787
788device		ef			# Multiple ethernet frames support
789options 	ETHER_II		# enable Ethernet_II frame
790options 	ETHER_8023		# enable Ethernet_802.3 (Novell) frame
791options 	ETHER_8022		# enable Ethernet_802.2 frame
792options 	ETHER_SNAP		# enable Ethernet_802.2/SNAP frame
793
794# for IPv6
795device		gif			#IPv6 and IPv4 tunneling
796options 	XBONEHACK
797device		faith			#for IPv6 and IPv4 translation
798device		stf			#6to4 IPv6 over IPv4 encapsulation
799
800#
801# Internet family options:
802#
803# MROUTING enables the kernel multicast packet forwarder, which works
804# with mrouted and XORP.
805#
806# IPFIREWALL enables support for IP firewall construction, in
807# conjunction with the `ipfw' program.  IPFIREWALL_VERBOSE sends
808# logged packets to the system logger.  IPFIREWALL_VERBOSE_LIMIT
809# limits the number of times a matching entry can be logged.
810#
811# WARNING:  IPFIREWALL defaults to a policy of "deny ip from any to any"
812# and if you do not add other rules during startup to allow access,
813# YOU WILL LOCK YOURSELF OUT.  It is suggested that you set firewall_type=open
814# in /etc/rc.conf when first enabling this feature, then refining the
815# firewall rules in /etc/rc.firewall after you've tested that the new kernel
816# feature works properly.
817#
818# IPFIREWALL_DEFAULT_TO_ACCEPT causes the default rule (at boot) to
819# allow everything.  Use with care, if a cracker can crash your
820# firewall machine, they can get to your protected machines.  However,
821# if you are using it as an as-needed filter for specific problems as
822# they arise, then this may be for you.  Changing the default to 'allow'
823# means that you won't get stuck if the kernel and /sbin/ipfw binary get
824# out of sync.
825#
826# IPDIVERT enables the divert IP sockets, used by ``ipfw divert''.  It
827# depends on IPFIREWALL if compiled into the kernel.
828#
829# IPFIREWALL_FORWARD enables changing of the packet destination either
830# to do some sort of policy routing or transparent proxying.  Used by
831# ``ipfw forward''. All  redirections apply to locally generated
832# packets too.  Because of this great care is required when
833# crafting the ruleset.
834#
835# IPFIREWALL_NAT adds support for in kernel nat in ipfw, and it requires
836# LIBALIAS. To build an ipfw kld with nat support enabled, add 
837# "CFLAGS+= -DIPFIREWALL_NAT" to your make.conf.
838#
839# IPSTEALTH enables code to support stealth forwarding (i.e., forwarding
840# packets without touching the TTL).  This can be useful to hide firewalls
841# from traceroute and similar tools.
842#
843# TCPDEBUG enables code which keeps traces of the TCP state machine
844# for sockets with the SO_DEBUG option set, which can then be examined
845# using the trpt(8) utility.
846#
847options 	MROUTING		# Multicast routing
848options 	IPFIREWALL		#firewall
849options 	IPFIREWALL_VERBOSE	#enable logging to syslogd(8)
850options 	IPFIREWALL_VERBOSE_LIMIT=100	#limit verbosity
851options 	IPFIREWALL_DEFAULT_TO_ACCEPT	#allow everything by default
852options 	IPFIREWALL_FORWARD	#packet destination changes
853options 	IPFIREWALL_NAT		#ipfw kernel nat support
854options 	IPDIVERT		#divert sockets
855options 	IPFILTER		#ipfilter support
856options 	IPFILTER_LOG		#ipfilter logging
857options 	IPFILTER_LOOKUP		#ipfilter pools
858options 	IPFILTER_DEFAULT_BLOCK	#block all packets by default
859options 	IPSTEALTH		#support for stealth forwarding
860options 	TCPDEBUG
861
862# The MBUF_STRESS_TEST option enables options which create
863# various random failures / extreme cases related to mbuf
864# functions.  See mbuf(9) for a list of available test cases.
865options 	MBUF_STRESS_TEST
866
867# Statically Link in accept filters
868options 	ACCEPT_FILTER_DATA
869options 	ACCEPT_FILTER_HTTP
870
871# TCP_SIGNATURE adds support for RFC 2385 (TCP-MD5) digests. These are
872# carried in TCP option 19. This option is commonly used to protect
873# TCP sessions (e.g. BGP) where IPSEC is not available nor desirable.
874# This is enabled on a per-socket basis using the TCP_MD5SIG socket option.
875# This requires the use of 'device crypto', 'options IPSEC'
876# or 'device cryptodev'.
877#options 	TCP_SIGNATURE		#include support for RFC 2385
878
879# DUMMYNET enables the "dummynet" bandwidth limiter.  You need IPFIREWALL
880# as well.  See dummynet(4) and ipfw(8) for more info.  When you run
881# DUMMYNET it is advisable to also have "options HZ=1000" to achieve a
882# smoother scheduling of the traffic.
883options 	DUMMYNET
884
885# Zero copy sockets support.  This enables "zero copy" for sending and
886# receiving data via a socket.  The send side works for any type of NIC,
887# the receive side only works for NICs that support MTUs greater than the
888# page size of your architecture and that support header splitting.  See
889# zero_copy(9) for more details.
890options 	ZERO_COPY_SOCKETS
891
892#
893# ATM (HARP version) options
894#
895# XXX: These have been disabled in FreeBSD 7.0 as they are not MPSAFE.
896#
897# ATM_CORE includes the base ATM functionality code.  This must be included
898#	for ATM support.
899#
900# ATM_IP includes support for running IP over ATM.
901#
902# At least one (and usually only one) of the following signalling managers
903# must be included (note that all signalling managers include PVC support):
904# ATM_SIGPVC includes support for the PVC-only signalling manager `sigpvc'.
905# ATM_SPANS includes support for the `spans' signalling manager, which runs
906#	the FORE Systems's proprietary SPANS signalling protocol.
907# ATM_UNI includes support for the `uni30' and `uni31' signalling managers,
908#	which run the ATM Forum UNI 3.x signalling protocols.
909#
910# The `hfa' driver provides support for the FORE Systems, Inc.
911# PCA-200E ATM PCI Adapter.
912#
913# The `harp' pseudo-driver makes all NATM interface drivers available to HARP.
914#
915#options 	ATM_CORE		#core ATM protocol family
916#options 	ATM_IP			#IP over ATM support
917#options 	ATM_SIGPVC		#SIGPVC signalling manager
918#options 	ATM_SPANS		#SPANS signalling manager
919#options 	ATM_UNI			#UNI signalling manager
920
921#device		hfa			#FORE PCA-200E ATM PCI
922#device		harp			#Pseudo-interface for NATM
923
924
925#####################################################################
926# FILESYSTEM OPTIONS
927
928#
929# Only the root, /usr, and /tmp filesystems need be statically
930# compiled; everything else will be automatically loaded at mount
931# time.  (Exception: the UFS family--- FFS --- cannot
932# currently be demand-loaded.)  Some people still prefer to statically
933# compile other filesystems as well.
934#
935# NB: The PORTAL filesystem is known to be buggy, and WILL panic your
936# system if you attempt to do anything with it.  It is included here
937# as an incentive for some enterprising soul to sit down and fix it.
938# The UNION filesystem was known to be buggy in the past.  It is now
939# being actively maintained, although there are still some issues being
940# resolved.
941#
942
943# One of these is mandatory:
944options 	FFS			#Fast filesystem
945options 	NFSCLIENT		#Network File System client
946
947# The rest are optional:
948options 	CD9660			#ISO 9660 filesystem
949options 	FDESCFS			#File descriptor filesystem
950options 	HPFS			#OS/2 File system
951options 	MSDOSFS			#MS DOS File System (FAT, FAT32)
952options 	NFSSERVER		#Network File System server
953options 	NTFS			#NT File System
954options 	NULLFS			#NULL filesystem
955# Broken (depends on NCP):
956#options 	NWFS			#NetWare filesystem
957options 	PORTALFS		#Portal filesystem
958options 	PROCFS			#Process filesystem (requires PSEUDOFS)
959options 	PSEUDOFS		#Pseudo-filesystem framework
960options 	PSEUDOFS_TRACE		#Debugging support for PSEUDOFS
961options 	SMBFS			#SMB/CIFS filesystem
962options 	UDF			#Universal Disk Format
963options 	UNIONFS			#Union filesystem
964# The xFS_ROOT options REQUIRE the associated ``options xFS''
965options 	NFS_ROOT		#NFS usable as root device
966
967# Soft updates is a technique for improving filesystem speed and
968# making abrupt shutdown less risky.
969#
970options 	SOFTUPDATES
971
972# Extended attributes allow additional data to be associated with files,
973# and is used for ACLs, Capabilities, and MAC labels.
974# See src/sys/ufs/ufs/README.extattr for more information.
975options 	UFS_EXTATTR
976options 	UFS_EXTATTR_AUTOSTART
977
978# Access Control List support for UFS filesystems.  The current ACL
979# implementation requires extended attribute support, UFS_EXTATTR,
980# for the underlying filesystem.
981# See src/sys/ufs/ufs/README.acls for more information.
982options 	UFS_ACL
983
984# Directory hashing improves the speed of operations on very large
985# directories at the expense of some memory.
986options 	UFS_DIRHASH
987
988# Gjournal-based UFS journaling support.
989options 	UFS_GJOURNAL
990
991# Make space in the kernel for a root filesystem on a md device.
992# Define to the number of kilobytes to reserve for the filesystem.
993options 	MD_ROOT_SIZE=10
994
995# Make the md device a potential root device, either with preloaded
996# images of type mfs_root or md_root.
997options 	MD_ROOT
998
999# Disk quotas are supported when this option is enabled.
1000options 	QUOTA			#enable disk quotas
1001
1002# If you are running a machine just as a fileserver for PC and MAC
1003# users, using SAMBA or Netatalk, you may consider setting this option
1004# and keeping all those users' directories on a filesystem that is
1005# mounted with the suiddir option. This gives new files the same
1006# ownership as the directory (similar to group). It's a security hole
1007# if you let these users run programs, so confine it to file-servers
1008# (but it'll save you lots of headaches in those cases). Root owned
1009# directories are exempt and X bits are cleared. The suid bit must be
1010# set on the directory as well; see chmod(1) PC owners can't see/set
1011# ownerships so they keep getting their toes trodden on. This saves
1012# you all the support calls as the filesystem it's used on will act as
1013# they expect: "It's my dir so it must be my file".
1014#
1015options 	SUIDDIR
1016
1017# NFS options:
1018options 	NFS_MINATTRTIMO=3	# VREG attrib cache timeout in sec
1019options 	NFS_MAXATTRTIMO=60
1020options 	NFS_MINDIRATTRTIMO=30	# VDIR attrib cache timeout in sec
1021options 	NFS_MAXDIRATTRTIMO=60
1022options 	NFS_GATHERDELAY=10	# Default write gather delay (msec)
1023options 	NFS_WDELAYHASHSIZ=16	# and with this
1024options 	NFS_DEBUG		# Enable NFS Debugging
1025
1026# Coda stuff:
1027options 	CODA			#CODA filesystem.
1028device		vcoda			#coda minicache <-> venus comm.
1029# Use the old Coda 5.x venus<->kernel interface instead of the new
1030# realms-aware 6.x protocol.
1031#options 	CODA_COMPAT_5
1032
1033#
1034# Add support for the EXT2FS filesystem of Linux fame.  Be a bit
1035# careful with this - the ext2fs code has a tendency to lag behind
1036# changes and not be exercised very much, so mounting read/write could
1037# be dangerous (and even mounting read only could result in panics.)
1038#
1039options 	EXT2FS
1040
1041#
1042# Add support for the ReiserFS filesystem (used in Linux). Currently,
1043# this is limited to read-only access.
1044#
1045options 	REISERFS
1046
1047#
1048# Add support for the SGI XFS filesystem. Currently,
1049# this is limited to read-only access.
1050#
1051options 	XFS
1052
1053# Use real implementations of the aio_* system calls.  There are numerous
1054# stability and security issues in the current aio code that make it
1055# unsuitable for inclusion on machines with untrusted local users.
1056options 	VFS_AIO
1057
1058# Cryptographically secure random number generator; /dev/random
1059device		random
1060
1061# The system memory devices; /dev/mem, /dev/kmem
1062device		mem
1063
1064# Optional character code conversion support with LIBICONV.
1065# Each option requires their base file system and LIBICONV.
1066options 	CD9660_ICONV
1067options 	MSDOSFS_ICONV
1068options 	NTFS_ICONV
1069options 	UDF_ICONV
1070
1071
1072#####################################################################
1073# POSIX P1003.1B
1074
1075# Real time extensions added in the 1993 POSIX
1076# _KPOSIX_PRIORITY_SCHEDULING: Build in _POSIX_PRIORITY_SCHEDULING
1077
1078options 	_KPOSIX_PRIORITY_SCHEDULING
1079# p1003_1b_semaphores are very experimental,
1080# user should be ready to assist in debugging if problems arise.
1081options 	P1003_1B_SEMAPHORES
1082
1083# POSIX message queue
1084options 	P1003_1B_MQUEUE
1085
1086#####################################################################
1087# SECURITY POLICY PARAMETERS
1088
1089# Support for BSM audit
1090options 	AUDIT
1091
1092# Support for Mandatory Access Control (MAC):
1093options 	MAC
1094options 	MAC_BIBA
1095options 	MAC_BSDEXTENDED
1096options 	MAC_IFOFF
1097options 	MAC_LOMAC
1098options 	MAC_MLS
1099options 	MAC_NONE
1100options 	MAC_PARTITION
1101options 	MAC_PORTACL
1102options 	MAC_SEEOTHERUIDS
1103options 	MAC_STUB
1104options 	MAC_TEST
1105
1106
1107#####################################################################
1108# CLOCK OPTIONS
1109
1110# The granularity of operation is controlled by the kernel option HZ whose
1111# default value (100) means a granularity of 10ms (1s/HZ).
1112# Some subsystems, such as DUMMYNET, might benefit from a smaller
1113# granularity such as 1ms or less, for a smoother scheduling of packets.
1114# Consider, however, that reducing the granularity too much might
1115# cause excessive overhead in clock interrupt processing,
1116# potentially causing ticks to be missed and thus actually reducing
1117# the accuracy of operation.
1118
1119options 	HZ=100
1120
1121# Enable support for the kernel PLL to use an external PPS signal,
1122# under supervision of [x]ntpd(8)
1123# More info in ntpd documentation: http://www.eecis.udel.edu/~ntp
1124
1125options 	PPS_SYNC
1126
1127
1128#####################################################################
1129# SCSI DEVICES
1130
1131# SCSI DEVICE CONFIGURATION
1132
1133# The SCSI subsystem consists of the `base' SCSI code, a number of
1134# high-level SCSI device `type' drivers, and the low-level host-adapter
1135# device drivers.  The host adapters are listed in the ISA and PCI
1136# device configuration sections below.
1137#
1138# It is possible to wire down your SCSI devices so that a given bus,
1139# target, and LUN always come on line as the same device unit.  In
1140# earlier versions the unit numbers were assigned in the order that
1141# the devices were probed on the SCSI bus.  This means that if you
1142# removed a disk drive, you may have had to rewrite your /etc/fstab
1143# file, and also that you had to be careful when adding a new disk
1144# as it may have been probed earlier and moved your device configuration
1145# around.  (See also option GEOM_VOL for a different solution to this
1146# problem.)
1147
1148# This old behavior is maintained as the default behavior.  The unit
1149# assignment begins with the first non-wired down unit for a device
1150# type.  For example, if you wire a disk as "da3" then the first
1151# non-wired disk will be assigned da4.
1152
1153# The syntax for wiring down devices is:
1154
1155hint.scbus.0.at="ahc0"
1156hint.scbus.1.at="ahc1"
1157hint.scbus.1.bus="0"
1158hint.scbus.3.at="ahc2"
1159hint.scbus.3.bus="0"
1160hint.scbus.2.at="ahc2"
1161hint.scbus.2.bus="1"
1162hint.da.0.at="scbus0"
1163hint.da.0.target="0"
1164hint.da.0.unit="0"
1165hint.da.1.at="scbus3"
1166hint.da.1.target="1"
1167hint.da.2.at="scbus2"
1168hint.da.2.target="3"
1169hint.sa.1.at="scbus1"
1170hint.sa.1.target="6"
1171
1172# "units" (SCSI logical unit number) that are not specified are
1173# treated as if specified as LUN 0.
1174
1175# All SCSI devices allocate as many units as are required.
1176
1177# The ch driver drives SCSI Media Changer ("jukebox") devices.
1178#
1179# The da driver drives SCSI Direct Access ("disk") and Optical Media
1180# ("WORM") devices.
1181#
1182# The sa driver drives SCSI Sequential Access ("tape") devices.
1183#
1184# The cd driver drives SCSI Read Only Direct Access ("cd") devices.
1185#
1186# The ses driver drives SCSI Environment Services ("ses") and
1187# SAF-TE ("SCSI Accessible Fault-Tolerant Enclosure") devices.
1188#
1189# The pt driver drives SCSI Processor devices.
1190#
1191# The sg driver provides a passthrough API that is compatible with the
1192# Linux SG driver.  It will work in conjunction with the COMPAT_LINUX
1193# option to run linux SG apps.  It can also stand on its own and provide
1194# source level API compatiblity for porting apps to FreeBSD.
1195#
1196# Target Mode support is provided here but also requires that a SIM
1197# (SCSI Host Adapter Driver) provide support as well.
1198#
1199# The targ driver provides target mode support as a Processor type device.
1200# It exists to give the minimal context necessary to respond to Inquiry
1201# commands. There is a sample user application that shows how the rest
1202# of the command support might be done in /usr/share/examples/scsi_target.
1203#
1204# The targbh driver provides target mode support and exists to respond
1205# to incoming commands that do not otherwise have a logical unit assigned
1206# to them.
1207#
1208# The "unknown" device (uk? in pre-2.0.5) is now part of the base SCSI
1209# configuration as the "pass" driver.
1210
1211device		scbus		#base SCSI code
1212device		ch		#SCSI media changers
1213device		da		#SCSI direct access devices (aka disks)
1214device		sa		#SCSI tapes
1215device		cd		#SCSI CD-ROMs
1216device		ses		#SCSI Environmental Services (and SAF-TE)
1217device		pt		#SCSI processor
1218device		targ		#SCSI Target Mode Code
1219device		targbh		#SCSI Target Mode Blackhole Device
1220device		pass		#CAM passthrough driver
1221device		sg		#Linux SCSI passthrough
1222
1223# CAM OPTIONS:
1224# debugging options:
1225# -- NOTE --  If you specify one of the bus/target/lun options, you must
1226#             specify them all!
1227# CAMDEBUG: When defined enables debugging macros
1228# CAM_DEBUG_BUS:  Debug the given bus.  Use -1 to debug all busses.
1229# CAM_DEBUG_TARGET:  Debug the given target.  Use -1 to debug all targets.
1230# CAM_DEBUG_LUN:  Debug the given lun.  Use -1 to debug all luns.
1231# CAM_DEBUG_FLAGS:  OR together CAM_DEBUG_INFO, CAM_DEBUG_TRACE,
1232#                   CAM_DEBUG_SUBTRACE, and CAM_DEBUG_CDB
1233#
1234# CAM_MAX_HIGHPOWER: Maximum number of concurrent high power (start unit) cmds
1235# SCSI_NO_SENSE_STRINGS: When defined disables sense descriptions
1236# SCSI_NO_OP_STRINGS: When defined disables opcode descriptions
1237# SCSI_DELAY: The number of MILLISECONDS to freeze the SIM (scsi adapter)
1238#             queue after a bus reset, and the number of milliseconds to
1239#             freeze the device queue after a bus device reset.  This
1240#             can be changed at boot and runtime with the
1241#             kern.cam.scsi_delay tunable/sysctl.
1242options 	CAMDEBUG
1243options 	CAM_DEBUG_BUS=-1
1244options 	CAM_DEBUG_TARGET=-1
1245options 	CAM_DEBUG_LUN=-1
1246options 	CAM_DEBUG_FLAGS=(CAM_DEBUG_INFO|CAM_DEBUG_TRACE|CAM_DEBUG_CDB)
1247options 	CAM_MAX_HIGHPOWER=4
1248options 	SCSI_NO_SENSE_STRINGS
1249options 	SCSI_NO_OP_STRINGS
1250options 	SCSI_DELAY=5000	# Be pessimistic about Joe SCSI device
1251
1252# Options for the CAM CDROM driver:
1253# CHANGER_MIN_BUSY_SECONDS: Guaranteed minimum time quantum for a changer LUN
1254# CHANGER_MAX_BUSY_SECONDS: Maximum time quantum per changer LUN, only
1255#                           enforced if there is I/O waiting for another LUN
1256# The compiled in defaults for these variables are 2 and 10 seconds,
1257# respectively.
1258#
1259# These can also be changed on the fly with the following sysctl variables:
1260# kern.cam.cd.changer.min_busy_seconds
1261# kern.cam.cd.changer.max_busy_seconds
1262#
1263options 	CHANGER_MIN_BUSY_SECONDS=2
1264options 	CHANGER_MAX_BUSY_SECONDS=10
1265
1266# Options for the CAM sequential access driver:
1267# SA_IO_TIMEOUT: Timeout for read/write/wfm  operations, in minutes
1268# SA_SPACE_TIMEOUT: Timeout for space operations, in minutes
1269# SA_REWIND_TIMEOUT: Timeout for rewind operations, in minutes
1270# SA_ERASE_TIMEOUT: Timeout for erase operations, in minutes
1271# SA_1FM_AT_EOD: Default to model which only has a default one filemark at EOT.
1272options 	SA_IO_TIMEOUT=4
1273options 	SA_SPACE_TIMEOUT=60
1274options 	SA_REWIND_TIMEOUT=(2*60)
1275options 	SA_ERASE_TIMEOUT=(4*60)
1276options 	SA_1FM_AT_EOD
1277
1278# Optional timeout for the CAM processor target (pt) device
1279# This is specified in seconds.  The default is 60 seconds.
1280options 	SCSI_PT_DEFAULT_TIMEOUT=60
1281
1282# Optional enable of doing SES passthrough on other devices (e.g., disks)
1283#
1284# Normally disabled because a lot of newer SCSI disks report themselves
1285# as having SES capabilities, but this can then clot up attempts to build
1286# build a topology with the SES device that's on the box these drives
1287# are in....
1288options 	SES_ENABLE_PASSTHROUGH
1289
1290
1291#####################################################################
1292# MISCELLANEOUS DEVICES AND OPTIONS
1293
1294# The `pty' device usually turns out to be ``effectively mandatory'',
1295# as it is required for `telnetd', `rlogind', `screen', `emacs', and
1296# `xterm', among others.
1297
1298device		pty		#Pseudo ttys
1299device		nmdm		#back-to-back tty devices
1300device		md		#Memory/malloc disk
1301device		snp		#Snoop device - to look at pty/vty/etc..
1302device		ccd		#Concatenated disk driver
1303device		firmware	#firmware(9) support
1304
1305# Kernel side iconv library
1306options 	LIBICONV
1307
1308# Size of the kernel message buffer.  Should be N * pagesize.
1309options 	MSGBUF_SIZE=40960
1310
1311# Maximum size of a tty or pty input buffer.
1312options 	TTYHOG=8193
1313
1314
1315#####################################################################
1316# HARDWARE DEVICE CONFIGURATION
1317
1318# For ISA the required hints are listed.
1319# EISA, MCA, PCI and pccard are self identifying buses, so no hints
1320# are needed.
1321
1322#
1323# Mandatory devices:
1324#
1325
1326# These options are valid for other keyboard drivers as well.
1327options 	KBD_DISABLE_KEYMAP_LOAD	# refuse to load a keymap
1328options 	KBD_INSTALL_CDEV	# install a CDEV entry in /dev
1329
1330options 	FB_DEBUG		# Frame buffer debugging
1331
1332device		splash			# Splash screen and screen saver support
1333
1334# Various screen savers.
1335device		blank_saver
1336device		daemon_saver
1337device		dragon_saver
1338device		fade_saver
1339device		fire_saver
1340device		green_saver
1341device		logo_saver
1342device		rain_saver
1343device		snake_saver
1344device		star_saver
1345device		warp_saver
1346
1347# The syscons console driver (SCO color console compatible).
1348device		sc
1349hint.sc.0.at="isa"
1350options 	MAXCONS=16		# number of virtual consoles
1351options 	SC_ALT_MOUSE_IMAGE	# simplified mouse cursor in text mode
1352options 	SC_DFLT_FONT		# compile font in
1353makeoptions	SC_DFLT_FONT=cp850
1354options 	SC_DISABLE_KDBKEY	# disable `debug' key
1355options 	SC_DISABLE_REBOOT	# disable reboot key sequence
1356options 	SC_HISTORY_SIZE=200	# number of history buffer lines
1357options 	SC_MOUSE_CHAR=0x3	# char code for text mode mouse cursor
1358options 	SC_PIXEL_MODE		# add support for the raster text mode
1359
1360# The following options will let you change the default colors of syscons.
1361options 	SC_NORM_ATTR=(FG_GREEN|BG_BLACK)
1362options 	SC_NORM_REV_ATTR=(FG_YELLOW|BG_GREEN)
1363options 	SC_KERNEL_CONS_ATTR=(FG_RED|BG_BLACK)
1364options 	SC_KERNEL_CONS_REV_ATTR=(FG_BLACK|BG_RED)
1365
1366# The following options will let you change the default behaviour of
1367# cut-n-paste feature
1368options 	SC_CUT_SPACES2TABS	# convert leading spaces into tabs
1369options 	SC_CUT_SEPCHARS=\"x09\"	# set of characters that delimit words
1370					# (default is single space - \"x20\")
1371
1372# If you have a two button mouse, you may want to add the following option
1373# to use the right button of the mouse to paste text.
1374options 	SC_TWOBUTTON_MOUSE
1375
1376# You can selectively disable features in syscons.
1377options 	SC_NO_CUTPASTE
1378options 	SC_NO_FONT_LOADING
1379options 	SC_NO_HISTORY
1380options 	SC_NO_MODE_CHANGE
1381options 	SC_NO_SYSMOUSE
1382options 	SC_NO_SUSPEND_VTYSWITCH
1383
1384# `flags' for sc
1385#	0x80	Put the video card in the VESA 800x600 dots, 16 color mode
1386#	0x100	Probe for a keyboard device periodically if one is not present
1387
1388#
1389# Optional devices:
1390#
1391
1392#
1393# SCSI host adapters:
1394#
1395# adv: All Narrow SCSI bus AdvanSys controllers.
1396# adw: Second Generation AdvanSys controllers including the ADV940UW.
1397# aha: Adaptec 154x/1535/1640
1398# ahb: Adaptec 174x EISA controllers
1399# ahc: Adaptec 274x/284x/2910/293x/294x/394x/3950x/3960x/398X/4944/
1400#      19160x/29160x, aic7770/aic78xx
1401# ahd: Adaptec 29320/39320 Controllers.
1402# aic: Adaptec 6260/6360, APA-1460 (PC Card), NEC PC9801-100 (C-BUS)
1403# amd: Support for the AMD 53C974 SCSI host adapter chip as found on devices
1404#      such as the Tekram DC-390(T).
1405# bt:  Most Buslogic controllers: including BT-445, BT-54x, BT-64x, BT-74x,
1406#      BT-75x, BT-946, BT-948, BT-956, BT-958, SDC3211B, SDC3211F, SDC3222F
1407# esp: NCR53c9x.  Only for SBUS hardware right now.
1408# isp: Qlogic ISP 1020, 1040 and 1040B PCI SCSI host adapters,
1409#      ISP 1240 Dual Ultra SCSI, ISP 1080 and 1280 (Dual) Ultra2,
1410#      ISP 12160 Ultra3 SCSI,
1411#      Qlogic ISP 2100 and ISP 2200 1Gb Fibre Channel host adapters.
1412#      Qlogic ISP 2300 and ISP 2312 2Gb Fibre Channel host adapters.
1413#      Qlogic ISP 2322 and ISP 6322 2Gb Fibre Channel host adapters.
1414# ispfw: Firmware module for Qlogic host adapters
1415# mpt: LSI-Logic MPT/Fusion 53c1020 or 53c1030 Ultra4
1416#      or FC9x9 Fibre Channel host adapters.
1417# ncr: NCR 53C810, 53C825 self-contained SCSI host adapters.
1418# sym: Symbios/Logic 53C8XX family of PCI-SCSI I/O processors:
1419#      53C810, 53C810A, 53C815, 53C825,  53C825A, 53C860, 53C875,
1420#      53C876, 53C885,  53C895, 53C895A, 53C896,  53C897, 53C1510D,
1421#      53C1010-33, 53C1010-66.
1422# trm: Tekram DC395U/UW/F DC315U adapters.
1423# wds: WD7000
1424
1425#
1426# Note that the order is important in order for Buslogic ISA/EISA cards to be
1427# probed correctly.
1428#
1429device		bt
1430hint.bt.0.at="isa"
1431hint.bt.0.port="0x330"
1432device		adv
1433hint.adv.0.at="isa"
1434device		adw
1435device		aha
1436hint.aha.0.at="isa"
1437device		aic
1438hint.aic.0.at="isa"
1439device		ahb
1440device		ahc
1441device		ahd
1442device		amd
1443device		esp
1444device		iscsi_initiator
1445device		isp
1446hint.isp.0.disable="1"
1447hint.isp.0.role="3"
1448hint.isp.0.prefer_iomap="1"
1449hint.isp.0.prefer_memmap="1"
1450hint.isp.0.fwload_disable="1"
1451hint.isp.0.ignore_nvram="1"
1452hint.isp.0.fullduplex="1"
1453hint.isp.0.topology="lport"
1454hint.isp.0.topology="nport"
1455hint.isp.0.topology="lport-only"
1456hint.isp.0.topology="nport-only"
1457# we can't get u_int64_t types, nor can we get strings if it's got
1458# a leading 0x, hence this silly dodge.
1459hint.isp.0.portwnn="w50000000aaaa0000"
1460hint.isp.0.nodewnn="w50000000aaaa0001"
1461device		ispfw
1462device		mpt
1463device		ncr
1464device		sym
1465device		trm
1466device		wds
1467hint.wds.0.at="isa"
1468hint.wds.0.port="0x350"
1469hint.wds.0.irq="11"
1470hint.wds.0.drq="6"
1471
1472# The aic7xxx driver will attempt to use memory mapped I/O for all PCI
1473# controllers that have it configured only if this option is set. Unfortunately,
1474# this doesn't work on some motherboards, which prevents it from being the
1475# default.
1476options 	AHC_ALLOW_MEMIO
1477
1478# Dump the contents of the ahc controller configuration PROM.
1479options 	AHC_DUMP_EEPROM
1480
1481# Bitmap of units to enable targetmode operations.
1482options 	AHC_TMODE_ENABLE
1483
1484# Compile in Aic7xxx Debugging code.
1485options 	AHC_DEBUG
1486
1487# Aic7xxx driver debugging options. See sys/dev/aic7xxx/aic7xxx.h
1488options 	AHC_DEBUG_OPTS
1489
1490# Print register bitfields in debug output.  Adds ~128k to driver
1491# See ahc(4).
1492options 	AHC_REG_PRETTY_PRINT
1493
1494# Compile in aic79xx debugging code.
1495options 	AHD_DEBUG
1496
1497# Aic79xx driver debugging options.  Adds ~215k to driver.  See ahd(4).
1498options 	AHD_DEBUG_OPTS=0xFFFFFFFF
1499
1500# Print human-readable register definitions when debugging
1501options 	AHD_REG_PRETTY_PRINT
1502
1503# Bitmap of units to enable targetmode operations.
1504options 	AHD_TMODE_ENABLE
1505
1506# The adw driver will attempt to use memory mapped I/O for all PCI
1507# controllers that have it configured only if this option is set.
1508options 	ADW_ALLOW_MEMIO
1509
1510# Options used in dev/iscsi (Software iSCSI stack)
1511#
1512options		ISCSI_INITIATOR_DEBUG=9
1513
1514# Options used in dev/isp/ (Qlogic SCSI/FC driver).
1515#
1516#	ISP_TARGET_MODE		-	enable target mode operation
1517#
1518options 	ISP_TARGET_MODE=1
1519#
1520#	ISP_DEFAULT_ROLES	-	default role
1521#		none=0
1522#		target=1
1523#		initiator=2
1524#		both=3			(not supported currently)
1525#
1526options 	ISP_DEFAULT_ROLES=2
1527
1528# Options used in dev/sym/ (Symbios SCSI driver).
1529#options 	SYM_SETUP_LP_PROBE_MAP	#-Low Priority Probe Map (bits)
1530					# Allows the ncr to take precedence
1531					# 1 (1<<0) -> 810a, 860
1532					# 2 (1<<1) -> 825a, 875, 885, 895
1533					# 4 (1<<2) -> 895a, 896, 1510d
1534#options 	SYM_SETUP_SCSI_DIFF	#-HVD support for 825a, 875, 885
1535					# disabled:0 (default), enabled:1
1536#options 	SYM_SETUP_PCI_PARITY	#-PCI parity checking
1537					# disabled:0, enabled:1 (default)
1538#options 	SYM_SETUP_MAX_LUN	#-Number of LUNs supported
1539					# default:8, range:[1..64]
1540
1541# The 'dpt' driver provides support for old DPT controllers (http://www.dpt.com/).
1542# These have hardware RAID-{0,1,5} support, and do multi-initiator I/O.
1543# The DPT controllers are commonly re-licensed under other brand-names -
1544# some controllers by Olivetti, Dec, HP, AT&T, SNI, AST, Alphatronic, NEC and
1545# Compaq are actually DPT controllers.
1546#
1547# See src/sys/dev/dpt for debugging and other subtle options.
1548#   DPT_MEASURE_PERFORMANCE Enables a set of (semi)invasive metrics. Various
1549#                           instruments are enabled.  The tools in
1550#                           /usr/sbin/dpt_* assume these to be enabled.
1551#   DPT_HANDLE_TIMEOUTS     Normally device timeouts are handled by the DPT.
1552#                           If you ant the driver to handle timeouts, enable
1553#                           this option.  If your system is very busy, this
1554#                           option will create more trouble than solve.
1555#   DPT_TIMEOUT_FACTOR      Used to compute the excessive amount of time to
1556#                           wait when timing out with the above option.
1557#  DPT_DEBUG_xxxx           These are controllable from sys/dev/dpt/dpt.h
1558#  DPT_LOST_IRQ             When enabled, will try, once per second, to catch
1559#                           any interrupt that got lost.  Seems to help in some
1560#                           DPT-firmware/Motherboard combinations.  Minimal
1561#                           cost, great benefit.
1562#  DPT_RESET_HBA            Make "reset" actually reset the controller
1563#                           instead of fudging it.  Only enable this if you
1564#			    are 100% certain you need it.
1565
1566device		dpt
1567
1568# DPT options
1569#!CAM# options 	DPT_MEASURE_PERFORMANCE
1570#!CAM# options 	DPT_HANDLE_TIMEOUTS
1571options 	DPT_TIMEOUT_FACTOR=4
1572options 	DPT_LOST_IRQ
1573options 	DPT_RESET_HBA
1574
1575#
1576# Compaq "CISS" RAID controllers (SmartRAID 5* series)
1577# These controllers have a SCSI-like interface, and require the
1578# CAM infrastructure.
1579#
1580device		ciss
1581
1582#
1583# Intel Integrated RAID controllers.
1584# This driver was developed and is maintained by Intel.  Contacts
1585# at Intel for this driver are
1586# "Kannanthanam, Boji T" <boji.t.kannanthanam@intel.com> and
1587# "Leubner, Achim" <achim.leubner@intel.com>.
1588#
1589device		iir
1590
1591#
1592# Mylex AcceleRAID and eXtremeRAID controllers with v6 and later
1593# firmware.  These controllers have a SCSI-like interface, and require
1594# the CAM infrastructure.
1595#
1596device		mly
1597
1598#
1599# Compaq Smart RAID, Mylex DAC960 and AMI MegaRAID controllers.  Only
1600# one entry is needed; the code will find and configure all supported
1601# controllers.
1602#
1603device		ida		# Compaq Smart RAID
1604device		mlx		# Mylex DAC960
1605device		amr		# AMI MegaRAID
1606device		mfi		# LSI MegaRAID SAS
1607device		mfip		# LSI MegaRAID SAS passthrough, requires CAM
1608options 	MFI_DEBUG
1609
1610#
1611# 3ware ATA RAID
1612#
1613device		twe		# 3ware ATA RAID
1614
1615#
1616# The 'ATA' driver supports all ATA and ATAPI devices, including PC Card
1617# devices. You only need one "device ata" for it to find all
1618# PCI and PC Card ATA/ATAPI devices on modern machines.
1619device		ata
1620device		atadisk		# ATA disk drives
1621device		ataraid		# ATA RAID drives
1622device		atapicd		# ATAPI CDROM drives
1623device		atapifd		# ATAPI floppy drives
1624device		atapist		# ATAPI tape drives
1625device		atapicam	# emulate ATAPI devices as SCSI ditto via CAM
1626				# needs CAM to be present (scbus & pass)
1627#
1628# For older non-PCI, non-PnPBIOS systems, these are the hints lines to add:
1629hint.ata.0.at="isa"
1630hint.ata.0.port="0x1f0"
1631hint.ata.0.irq="14"
1632hint.ata.1.at="isa"
1633hint.ata.1.port="0x170"
1634hint.ata.1.irq="15"
1635
1636#
1637# The following options are valid on the ATA driver:
1638#
1639# ATA_STATIC_ID:	controller numbering is static ie depends on location
1640#			else the device numbers are dynamically allocated.
1641
1642options 	ATA_STATIC_ID
1643
1644#
1645# Standard floppy disk controllers and floppy tapes, supports
1646# the Y-E DATA External FDD (PC Card)
1647#
1648device		fdc
1649hint.fdc.0.at="isa"
1650hint.fdc.0.port="0x3F0"
1651hint.fdc.0.irq="6"
1652hint.fdc.0.drq="2"
1653#
1654# FDC_DEBUG enables floppy debugging.  Since the debug output is huge, you
1655# gotta turn it actually on by setting the variable fd_debug with DDB,
1656# however.
1657options 	FDC_DEBUG
1658#
1659# Activate this line if you happen to have an Insight floppy tape.
1660# Probing them proved to be dangerous for people with floppy disks only,
1661# so it's "hidden" behind a flag:
1662#hint.fdc.0.flags="1"
1663
1664# Specify floppy devices
1665hint.fd.0.at="fdc0"
1666hint.fd.0.drive="0"
1667hint.fd.1.at="fdc0"
1668hint.fd.1.drive="1"
1669
1670#
1671# uart: newbusified driver for serial interfaces.  It consolidates the sio(4),
1672#	sab(4) and zs(4) drivers.
1673#
1674device		uart
1675
1676# Options for uart(4)
1677options 	UART_PPS_ON_CTS		# Do time pulse capturing using CTS
1678					# instead of DCD.
1679
1680# The following hint should only be used for pure ISA devices.  It is not
1681# needed otherwise.  Use of hints is strongly discouraged.
1682hint.uart.0.at="isa"
1683
1684# The following 3 hints are used when the UART is a system device (i.e., a
1685# console or debug port), but only on platforms that don't have any other
1686# means to pass the information to the kernel.  The unit number of the hint
1687# is only used to bundle the hints together.  There is no relation to the
1688# unit number of the probed UART.
1689hint.uart.0.port="0x3f8"
1690hint.uart.0.flags="0x10"
1691hint.uart.0.baud="115200"
1692
1693# `flags' for serial drivers that support consoles like sio(4) and uart(4):
1694#	0x10	enable console support for this unit.  Other console flags
1695#		(if applicable) are ignored unless this is set.  Enabling
1696#		console support does not make the unit the preferred console.
1697#		Boot with -h or set boot_serial=YES in the loader.  For sio(4)
1698#		specifically, the 0x20 flag can also be set (see above).
1699#		Currently, at most one unit can have console support; the
1700#		first one (in config file order) with this flag set is
1701#		preferred.  Setting this flag for sio0 gives the old behaviour.
1702#	0x80	use this port for serial line gdb support in ddb.  Also known
1703#		as debug port.
1704#
1705
1706# Options for serial drivers that support consoles:
1707options 	BREAK_TO_DEBUGGER	# A BREAK on a serial console goes to
1708					# ddb, if available.
1709
1710# Solaris implements a new BREAK which is initiated by a character
1711# sequence CR ~ ^b which is similar to a familiar pattern used on
1712# Sun servers by the Remote Console.
1713options 	ALT_BREAK_TO_DEBUGGER
1714
1715# Serial Communications Controller
1716# Supports the Siemens SAB 82532 and Zilog Z8530 multi-channel
1717# communications controllers.
1718device		scc
1719
1720# PCI Universal Communications driver
1721# Supports various multi port PCI I/O cards.
1722device		puc
1723
1724#
1725# Network interfaces:
1726#
1727# MII bus support is required for some PCI 10/100 ethernet NICs,
1728# namely those which use MII-compliant transceivers or implement
1729# transceiver control interfaces that operate like an MII. Adding
1730# "device miibus0" to the kernel config pulls in support for
1731# the generic miibus API and all of the PHY drivers, including a
1732# generic one for PHYs that aren't specifically handled by an
1733# individual driver.
1734device		miibus
1735
1736# an:   Aironet 4500/4800 802.11 wireless adapters. Supports the PCMCIA,
1737#       PCI and ISA varieties.
1738# awi:  Support for IEEE 802.11 PC Card devices using the AMD Am79C930 and
1739#       Harris (Intersil) Chipset with PCnetMobile firmware by AMD.
1740# bce:	Broadcom NetXtreme II (BCM5706/BCM5708) PCI/PCIe Gigabit Ethernet
1741#       adapters.
1742# bfe:	Broadcom BCM4401 Ethernet adapter.
1743# bge:	Support for gigabit ethernet adapters based on the Broadcom
1744#	BCM570x family of controllers, including the 3Com 3c996-T,
1745#	the Netgear GA302T, the SysKonnect SK-9D21 and SK-9D41, and
1746#	the embedded gigE NICs on Dell PowerEdge 2550 servers.
1747# cm:	Arcnet SMC COM90c26 / SMC COM90c56
1748#	(and SMC COM90c66 in '56 compatibility mode) adapters.
1749# cnw:  Xircom CNW/Netware Airsurfer PC Card adapter
1750# dc:   Support for PCI fast ethernet adapters based on the DEC/Intel 21143
1751#       and various workalikes including:
1752#       the ADMtek AL981 Comet and AN985 Centaur, the ASIX Electronics
1753#       AX88140A and AX88141, the Davicom DM9100 and DM9102, the Lite-On
1754#       82c168 and 82c169 PNIC, the Lite-On/Macronix LC82C115 PNIC II
1755#       and the Macronix 98713/98713A/98715/98715A/98725 PMAC. This driver
1756#       replaces the old al, ax, dm, pn and mx drivers.  List of brands:
1757#       Digital DE500-BA, Kingston KNE100TX, D-Link DFE-570TX, SOHOware SFA110,
1758#       SVEC PN102-TX, CNet Pro110B, 120A, and 120B, Compex RL100-TX,
1759#       LinkSys LNE100TX, LNE100TX V2.0, Jaton XpressNet, Alfa Inc GFC2204,
1760#       KNE110TX.
1761# de:   Digital Equipment DC21040
1762# em:   Intel Pro/1000 Gigabit Ethernet 82542, 82543, 82544 based adapters.
1763# ep:   3Com 3C509, 3C529, 3C556, 3C562D, 3C563D, 3C572, 3C574X, 3C579, 3C589
1764#       and PC Card devices using these chipsets.
1765# ex:   Intel EtherExpress Pro/10 and other i82595-based adapters,
1766#       Olicom Ethernet PC Card devices.
1767# fe:   Fujitsu MB86960A/MB86965A Ethernet
1768# fea:  DEC DEFEA EISA FDDI adapter
1769# fpa:  Support for the Digital DEFPA PCI FDDI. `device fddi' is also needed.
1770# fxp:  Intel EtherExpress Pro/100B
1771#	(hint of prefer_iomap can be done to prefer I/O instead of Mem mapping)
1772# hme:  Sun HME (Happy Meal Ethernet)
1773# le:   AMD Am7900 LANCE and Am79C9xx PCnet
1774# lge:	Support for PCI gigabit ethernet adapters based on the Level 1
1775#	LXT1001 NetCellerator chipset. This includes the D-Link DGE-500SX,
1776#	SMC TigerCard 1000 (SMC9462SX), and some Addtron cards.
1777# msk:	Support for gigabit ethernet adapters based on the Marvell/SysKonnect
1778#	Yukon II Gigabit controllers, including 88E8021, 88E8022, 88E8061,
1779#	88E8062, 88E8035, 88E8036, 88E8038, 88E8050, 88E8052, 88E8053,
1780#	88E8055, 88E8056 and D-Link 560T/550SX.
1781# lmc:	Support for the LMC/SBE wide-area network interface cards.
1782# my:	Myson Fast Ethernet (MTD80X, MTD89X)
1783# nge:	Support for PCI gigabit ethernet adapters based on the National
1784#	Semiconductor DP83820 and DP83821 chipset. This includes the
1785#	SMC EZ Card 1000 (SMC9462TX), D-Link DGE-500T, Asante FriendlyNet
1786#	GigaNIX 1000TA and 1000TPC, the Addtron AEG320T, the Surecom
1787#	EP-320G-TX and the Netgear GA622T.
1788# pcn:	Support for PCI fast ethernet adapters based on the AMD Am79c97x
1789#	PCnet-FAST, PCnet-FAST+, PCnet-FAST III, PCnet-PRO and PCnet-Home
1790#	chipsets. These can also be handled by the le(4) driver if the
1791#	pcn(4) driver is left out of the kernel. The le(4) driver does not
1792#	support the additional features like the MII bus and burst mode of
1793#	the PCnet-FAST and greater chipsets though.
1794# rl:   Support for PCI fast ethernet adapters based on the RealTek 8129/8139
1795#       chipset.  Note that the RealTek driver defaults to using programmed
1796#       I/O to do register accesses because memory mapped mode seems to cause
1797#       severe lockups on SMP hardware.  This driver also supports the
1798#       Accton EN1207D `Cheetah' adapter, which uses a chip called
1799#       the MPX 5030/5038, which is either a RealTek in disguise or a
1800#       RealTek workalike.  Note that the D-Link DFE-530TX+ uses the RealTek
1801#       chipset and is supported by this driver, not the 'vr' driver.
1802# sf:   Support for Adaptec Duralink PCI fast ethernet adapters based on the
1803#       Adaptec AIC-6915 "starfire" controller.
1804#       This includes dual and quad port cards, as well as one 100baseFX card.
1805#       Most of these are 64-bit PCI devices, except for one single port
1806#       card which is 32-bit.
1807# sis:  Support for NICs based on the Silicon Integrated Systems SiS 900,
1808#       SiS 7016 and NS DP83815 PCI fast ethernet controller chips.
1809# sbsh:	Support for Granch SBNI16 SHDSL modem PCI adapters
1810# sk:   Support for the SysKonnect SK-984x series PCI gigabit ethernet NICs.
1811#       This includes the SK-9841 and SK-9842 single port cards (single mode
1812#       and multimode fiber) and the SK-9843 and SK-9844 dual port cards
1813#       (also single mode and multimode).
1814#       The driver will autodetect the number of ports on the card and
1815#       attach each one as a separate network interface.
1816# sn:   Support for ISA and PC Card Ethernet devices using the
1817#       SMC91C90/92/94/95 chips.
1818# ste:  Sundance Technologies ST201 PCI fast ethernet controller, includes
1819#       the D-Link DFE-550TX.
1820# stge: Support for gigabit ethernet adapters based on the Sundance/Tamarack
1821#       TC9021 family of controllers, including the Sundance ST2021/ST2023,
1822#       the Sundance/Tamarack TC9021, the D-Link DL-4000 and ASUS NX1101.
1823# ti:   Support for PCI gigabit ethernet NICs based on the Alteon Networks
1824#       Tigon 1 and Tigon 2 chipsets.  This includes the Alteon AceNIC, the
1825#       3Com 3c985, the Netgear GA620 and various others.  Note that you will
1826#       probably want to bump up kern.ipc.nmbclusters a lot to use this driver.
1827# tl:   Support for the Texas Instruments TNETE100 series 'ThunderLAN'
1828#       cards and integrated ethernet controllers.  This includes several
1829#       Compaq Netelligent 10/100 cards and the built-in ethernet controllers
1830#       in several Compaq Prosignia, Proliant and Deskpro systems.  It also
1831#       supports several Olicom 10Mbps and 10/100 boards.
1832# tx:   SMC 9432 TX, BTX and FTX cards. (SMC EtherPower II series)
1833# txp:	Support for 3Com 3cR990 cards with the "Typhoon" chipset
1834# vr:   Support for various fast ethernet adapters based on the VIA
1835#       Technologies VT3043 `Rhine I' and VT86C100A `Rhine II' chips,
1836#       including the D-Link DFE530TX (see 'rl' for DFE530TX+), the Hawking
1837#       Technologies PN102TX, and the AOpen/Acer ALN-320.
1838# vx:   3Com 3C590 and 3C595
1839# wb:   Support for fast ethernet adapters based on the Winbond W89C840F chip.
1840#       Note: this is not the same as the Winbond W89C940F, which is a
1841#       NE2000 clone.
1842# wi:   Lucent WaveLAN/IEEE 802.11 PCMCIA adapters. Note: this supports both
1843#       the PCMCIA and ISA cards: the ISA card is really a PCMCIA to ISA
1844#       bridge with a PCMCIA adapter plugged into it.
1845# xe:   Xircom/Intel EtherExpress Pro100/16 PC Card ethernet controller,
1846#       Accton Fast EtherCard-16, Compaq Netelligent 10/100 PC Card,
1847#       Toshiba 10/100 Ethernet PC Card, Xircom 16-bit Ethernet + Modem 56
1848# xl:   Support for the 3Com 3c900, 3c905, 3c905B and 3c905C (Fast)
1849#       Etherlink XL cards and integrated controllers.  This includes the
1850#       integrated 3c905B-TX chips in certain Dell Optiplex and Dell
1851#       Precision desktop machines and the integrated 3c905-TX chips
1852#       in Dell Latitude laptop docking stations.
1853#       Also supported: 3Com 3c980(C)-TX, 3Com 3cSOHO100-TX, 3Com 3c450-TX
1854
1855# Order for ISA/EISA devices is important here
1856
1857device		cm
1858hint.cm.0.at="isa"
1859hint.cm.0.port="0x2e0"
1860hint.cm.0.irq="9"
1861hint.cm.0.maddr="0xdc000"
1862device		ep
1863device		ex
1864device		fe
1865hint.fe.0.at="isa"
1866hint.fe.0.port="0x300"
1867device		fea
1868device		sn
1869hint.sn.0.at="isa"
1870hint.sn.0.port="0x300"
1871hint.sn.0.irq="10"
1872device		an
1873device		awi
1874device		cnw
1875device		wi
1876device		xe
1877
1878# PCI Ethernet NICs that use the common MII bus controller code.
1879device		bce		# Broadcom BCM5706/BCM5708 Gigabit Ethernet
1880device		bfe		# Broadcom BCM440x 10/100 Ethernet
1881device		bge		# Broadcom BCM570xx Gigabit Ethernet
1882device		cxgb		# Chelsio T3 10 Gigabit Ethernet
1883device		dc		# DEC/Intel 21143 and various workalikes
1884device		fxp		# Intel EtherExpress PRO/100B (82557, 82558)
1885hint.fxp.0.prefer_iomap="0"
1886device		hme		# Sun HME (Happy Meal Ethernet)
1887device		lge		# Level 1 LXT1001 gigabit Ethernet
1888device		my		# Myson Fast Ethernet (MTD80X, MTD89X)
1889device		nge		# NatSemi DP83820 gigabit Ethernet
1890device		rl		# RealTek 8129/8139
1891device		pcn		# AMD Am79C97x PCI 10/100 NICs
1892device		sf		# Adaptec AIC-6915 (``Starfire'')
1893device		sbsh		# Granch SBNI16 SHDSL modem
1894device		sis		# Silicon Integrated Systems SiS 900/SiS 7016
1895device		sk		# SysKonnect SK-984x & SK-982x gigabit Ethernet
1896device		ste		# Sundance ST201 (D-Link DFE-550TX)
1897device		ti		# Alteon Networks Tigon I/II gigabit Ethernet
1898device		tl		# Texas Instruments ThunderLAN
1899device		tx		# SMC EtherPower II (83c170 ``EPIC'')
1900device		vr		# VIA Rhine, Rhine II
1901device		wb		# Winbond W89C840F
1902device		xl		# 3Com 3c90x (``Boomerang'', ``Cyclone'')
1903
1904# PCI Ethernet NICs.
1905device		de		# DEC/Intel DC21x4x (``Tulip'')
1906device		le		# AMD Am7900 LANCE and Am79C9xx PCnet
1907device		mxge		# Myricom Myri-10G 10GbE NIC
1908device		nxge		# Neterion Xframe 10GbE Server/Storage Adapter
1909device		txp		# 3Com 3cR990 (``Typhoon'')
1910device		vx		# 3Com 3c590, 3c595 (``Vortex'')
1911
1912# PCI FDDI NICs.
1913device		fpa
1914
1915# PCI WAN adapters.
1916device		lmc
1917
1918# Use "private" jumbo buffers allocated exclusively for the ti(4) driver.
1919# This option is incompatible with the TI_JUMBO_HDRSPLIT option below.
1920#options 	TI_PRIVATE_JUMBOS
1921# Turn on the header splitting option for the ti(4) driver firmware.  This
1922# only works for Tigon II chips, and has no effect for Tigon I chips.
1923options 	TI_JUMBO_HDRSPLIT
1924
1925# These two options allow manipulating the mbuf cluster size and mbuf size,
1926# respectively.  Be very careful with NIC driver modules when changing
1927# these from their default values, because that can potentially cause a
1928# mismatch between the mbuf size assumed by the kernel and the mbuf size
1929# assumed by a module.  The only driver that currently has the ability to
1930# detect a mismatch is ti(4).
1931options 	MCLSHIFT=12	# mbuf cluster shift in bits, 12 == 4KB
1932options 	MSIZE=512	# mbuf size in bytes
1933
1934#
1935# ATM related options (Cranor version)
1936# (note: this driver cannot be used with the HARP ATM stack)
1937#
1938# The `en' device provides support for Efficient Networks (ENI)
1939# ENI-155 PCI midway cards, and the Adaptec 155Mbps PCI ATM cards (ANA-59x0).
1940#
1941# The `hatm' device provides support for Fore/Marconi HE155 and HE622
1942# ATM PCI cards.
1943#
1944# The `fatm' device provides support for Fore PCA200E ATM PCI cards.
1945#
1946# The `patm' device provides support for IDT77252 based cards like
1947# ProSum's ProATM-155 and ProATM-25 and IDT's evaluation boards.
1948#
1949# atm device provides generic atm functions and is required for
1950# atm devices.
1951# NATM enables the netnatm protocol family that can be used to
1952# bypass TCP/IP.
1953#
1954# utopia provides the access to the ATM PHY chips and is required for en,
1955# hatm and fatm.
1956#
1957# the current driver supports only PVC operations (no atm-arp, no multicast).
1958# for more details, please read the original documents at
1959# http://www.ccrc.wustl.edu/pub/chuck/tech/bsdatm/bsdatm.html
1960#
1961device		atm
1962device		en
1963device		fatm			#Fore PCA200E
1964device		hatm			#Fore/Marconi HE155/622
1965device		patm			#IDT77252 cards (ProATM and IDT)
1966device		utopia			#ATM PHY driver
1967options 	NATM			#native ATM
1968
1969options 	LIBMBPOOL		#needed by patm, iatm
1970
1971#
1972# Sound drivers
1973#
1974# sound: The generic sound driver.
1975#
1976
1977device		sound
1978
1979#
1980# snd_*: Device-specific drivers.
1981#
1982# The flags of the device tells the device a bit more info about the
1983# device that normally is obtained through the PnP interface.
1984#	bit  2..0   secondary DMA channel;
1985#	bit  4      set if the board uses two dma channels;
1986#	bit 15..8   board type, overrides autodetection; leave it
1987#		    zero if don't know what to put in (and you don't,
1988#		    since this is unsupported at the moment...).
1989#
1990# snd_ad1816:		Analog Devices AD1816 ISA PnP/non-PnP.
1991# snd_als4000:		Avance Logic ALS4000 PCI.
1992# snd_atiixp:		ATI IXP 200/300/400 PCI.
1993# snd_au88x0		Aureal Vortex 1/2/Advantage PCI. This driver
1994#			lacks support for playback and recording.
1995# snd_audiocs:		Crystal Semiconductor CS4231 SBus/EBus. Only
1996#			for sparc64.
1997# snd_cmi:		CMedia CMI8338/CMI8738 PCI.
1998# snd_cs4281:		Crystal Semiconductor CS4281 PCI.
1999# snd_csa:		Crystal Semiconductor CS461x/428x PCI. (except
2000#			4281)
2001# snd_ds1:		Yamaha DS-1 PCI.
2002# snd_emu10k1:		Creative EMU10K1 PCI and EMU10K2 (Audigy) PCI.
2003# snd_emu10kx:		Creative SoundBlaster Live! and Audigy
2004# snd_envy24:		VIA Envy24 and compatible, needs snd_spicds.
2005# snd_envy24ht:		VIA Envy24HT and compatible, needs snd_spicds.
2006# snd_es137x:		Ensoniq AudioPCI ES137x PCI.
2007# snd_ess:		Ensoniq ESS ISA PnP/non-PnP, to be used in
2008#			conjunction with snd_sbc.
2009# snd_fm801:		Forte Media FM801 PCI.
2010# snd_gusc:		Gravis UltraSound ISA PnP/non-PnP.
2011# snd_hda:		Intel High Definition Audio (Controller) and
2012#			compatible.
2013# snd_ich:		Intel ICH PCI and some more audio controllers
2014#			embedded in a chipset, for example nVidia
2015#			nForce controllers.
2016# snd_maestro:		ESS Technology Maestro-1/2x PCI.
2017# snd_maestro3:		ESS Technology Maestro-3/Allegro PCI.
2018# snd_mss:		Microsoft Sound System ISA PnP/non-PnP.
2019# snd_neomagic:		Neomagic 256 AV/ZX PCI.
2020# snd_sb16:		Creative SoundBlaster16, to be used in
2021#			conjunction with snd_sbc.
2022# snd_sb8:		Creative SoundBlaster (pre-16), to be used in
2023#			conjunction with snd_sbc.
2024# snd_sbc:		Creative SoundBlaster ISA PnP/non-PnP.
2025#			Supports ESS and Avance ISA chips as well.
2026# snd_spicds:		SPI codec driver, needed by Envy24/Envy24HT drivers.
2027# snd_solo:		ESS Solo-1x PCI.
2028# snd_t4dwave:		Trident 4DWave DX/NX PCI, Sis 7018 PCI and Acer Labs
2029#			M5451 PCI.
2030# snd_via8233:		VIA VT8233x PCI.
2031# snd_via82c686:	VIA VT82C686A PCI.
2032# snd_vibes:		S3 Sonicvibes PCI.
2033# snd_uaudio:		USB audio.
2034
2035device		snd_ad1816
2036device		snd_als4000
2037device		snd_atiixp
2038#device		snd_au88x0
2039#device		snd_audiocs
2040device		snd_cmi
2041device		snd_cs4281
2042device		snd_csa
2043device		snd_ds1
2044device		snd_emu10k1
2045device		snd_emu10kx
2046options		SND_EMU10KX_MULTICHANNEL
2047device		snd_envy24
2048device		snd_envy24ht
2049device		snd_es137x
2050device		snd_ess
2051device		snd_fm801
2052device		snd_gusc
2053device		snd_hda
2054device		snd_ich
2055device		snd_maestro
2056device		snd_maestro3
2057device		snd_mss
2058device		snd_neomagic
2059device		snd_sb16
2060device		snd_sb8
2061device		snd_sbc
2062device		snd_solo
2063device		snd_spicds
2064device		snd_t4dwave
2065device		snd_via8233
2066device		snd_via82c686
2067device		snd_vibes
2068device		snd_uaudio
2069
2070# For non-PnP sound cards:
2071hint.pcm.0.at="isa"
2072hint.pcm.0.irq="10"
2073hint.pcm.0.drq="1"
2074hint.pcm.0.flags="0x0"
2075hint.sbc.0.at="isa"
2076hint.sbc.0.port="0x220"
2077hint.sbc.0.irq="5"
2078hint.sbc.0.drq="1"
2079hint.sbc.0.flags="0x15"
2080hint.gusc.0.at="isa"
2081hint.gusc.0.port="0x220"
2082hint.gusc.0.irq="5"
2083hint.gusc.0.drq="1"
2084hint.gusc.0.flags="0x13"
2085
2086#
2087# IEEE-488 hardware:
2088# pcii:		PCIIA cards (uPD7210 based isa cards)
2089# tnt4882:	National Instruments PCI-GPIB card.
2090
2091device	pcii
2092hint.pcii.0.at="isa"
2093hint.pcii.0.port="0x2e1"
2094hint.pcii.0.irq="5"
2095hint.pcii.0.drq="1"
2096
2097device	tnt4882
2098
2099#
2100# Miscellaneous hardware:
2101#
2102# scd: Sony CD-ROM using proprietary (non-ATAPI) interface
2103# mcd: Mitsumi CD-ROM using proprietary (non-ATAPI) interface
2104# bktr: Brooktree bt848/848a/849a/878/879 video capture and TV Tuner board
2105# cy: Cyclades serial driver
2106# joy: joystick (including IO DATA PCJOY PC Card joystick)
2107# rc: RISCom/8 multiport card
2108# rp: Comtrol Rocketport(ISA/PCI) - single card
2109# si: Specialix SI/XIO 4-32 port terminal multiplexor
2110
2111# Notes on the Comtrol Rocketport driver:
2112#
2113# The exact values used for rp0 depend on how many boards you have
2114# in the system.  The manufacturer's sample configs are listed as:
2115#
2116#               device  rp	# core driver support
2117#
2118#   Comtrol Rocketport ISA single card
2119#		hint.rp.0.at="isa"
2120#		hint.rp.0.port="0x280"
2121#
2122#   If instead you have two ISA cards, one installed at 0x100 and the
2123#   second installed at 0x180, then you should add the following to
2124#   your kernel probe hints:
2125#		hint.rp.0.at="isa"
2126#		hint.rp.0.port="0x100"
2127#		hint.rp.1.at="isa"
2128#		hint.rp.1.port="0x180"
2129#
2130#   For 4 ISA cards, it might be something like this:
2131#		hint.rp.0.at="isa"
2132#		hint.rp.0.port="0x180"
2133#		hint.rp.1.at="isa"
2134#		hint.rp.1.port="0x100"
2135#		hint.rp.2.at="isa"
2136#		hint.rp.2.port="0x340"
2137#		hint.rp.3.at="isa"
2138#		hint.rp.3.port="0x240"
2139#
2140#   For PCI cards, you need no hints.
2141
2142# Mitsumi CD-ROM
2143device		mcd
2144hint.mcd.0.at="isa"
2145hint.mcd.0.port="0x300"
2146# for the Sony CDU31/33A CDROM
2147device		scd
2148hint.scd.0.at="isa"
2149hint.scd.0.port="0x230"
2150device		joy			# PnP aware, hints for non-PnP only
2151hint.joy.0.at="isa"
2152hint.joy.0.port="0x201"
2153device		rc
2154hint.rc.0.at="isa"
2155hint.rc.0.port="0x220"
2156hint.rc.0.irq="12"
2157device		rp
2158hint.rp.0.at="isa"
2159hint.rp.0.port="0x280"
2160device		si
2161options 	SI_DEBUG
2162hint.si.0.at="isa"
2163hint.si.0.maddr="0xd0000"
2164hint.si.0.irq="12"
2165
2166#
2167# The 'bktr' device is a PCI video capture device using the Brooktree
2168# bt848/bt848a/bt849a/bt878/bt879 chipset. When used with a TV Tuner it forms a
2169# TV card, e.g. Miro PC/TV, Hauppauge WinCast/TV WinTV, VideoLogic Captivator,
2170# Intel Smart Video III, AverMedia, IMS Turbo, FlyVideo.
2171#
2172# options 	OVERRIDE_CARD=xxx
2173# options 	OVERRIDE_TUNER=xxx
2174# options 	OVERRIDE_MSP=1
2175# options 	OVERRIDE_DBX=1
2176# These options can be used to override the auto detection
2177# The current values for xxx are found in src/sys/dev/bktr/bktr_card.h
2178# Using sysctl(8) run-time overrides on a per-card basis can be made
2179#
2180# options 	BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_PAL
2181# or
2182# options 	BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_NTSC
2183# Specifies the default video capture mode.
2184# This is required for Dual Crystal (28&35Mhz) boards where PAL is used
2185# to prevent hangs during initialisation, e.g. VideoLogic Captivator PCI.
2186#
2187# options 	BKTR_USE_PLL
2188# This is required for PAL or SECAM boards with a 28Mhz crystal and no 35Mhz
2189# crystal, e.g. some new Bt878 cards.
2190#
2191# options 	BKTR_GPIO_ACCESS
2192# This enable IOCTLs which give user level access to the GPIO port.
2193#
2194# options 	BKTR_NO_MSP_RESET
2195# Prevents the MSP34xx reset. Good if you initialise the MSP in another OS first
2196#
2197# options 	BKTR_430_FX_MODE
2198# Switch Bt878/879 cards into Intel 430FX chipset compatibility mode.
2199#
2200# options 	BKTR_SIS_VIA_MODE
2201# Switch Bt878/879 cards into SIS/VIA chipset compatibility mode which is
2202# needed for some old SiS and VIA chipset motherboards.
2203# This also allows Bt878/879 chips to work on old OPTi (<1997) chipset
2204# motherboards and motherboards with bad or incomplete PCI 2.1 support.
2205# As a rough guess, old = before 1998
2206#
2207# options 	BKTR_NEW_MSP34XX_DRIVER
2208# Use new, more complete initialization scheme for the msp34* soundchip.
2209# Should fix stereo autodetection if the old driver does only output
2210# mono sound.
2211
2212#
2213# options 	BKTR_USE_FREEBSD_SMBUS
2214# Compile with FreeBSD SMBus implementation
2215#
2216# Brooktree driver has been ported to the new I2C framework. Thus,
2217# you'll need to have the following 3 lines in the kernel config.
2218#     device smbus
2219#     device iicbus
2220#     device iicbb
2221#     device iicsmb
2222# The iic and smb devices are only needed if you want to control other
2223# I2C slaves connected to the external connector of some cards.
2224#
2225device		bktr
2226
2227#
2228# PC Card/PCMCIA and Cardbus
2229#
2230# pccbb: pci/cardbus bridge implementing YENTA interface
2231# pccard: pccard slots
2232# cardbus: cardbus slots
2233device		cbb
2234device		pccard
2235device		cardbus
2236
2237#
2238# SMB bus
2239#
2240# System Management Bus support is provided by the 'smbus' device.
2241# Access to the SMBus device is via the 'smb' device (/dev/smb*),
2242# which is a child of the 'smbus' device.
2243#
2244# Supported devices:
2245# smb		standard I/O through /dev/smb*
2246#
2247# Supported SMB interfaces:
2248# iicsmb	I2C to SMB bridge with any iicbus interface
2249# bktr		brooktree848 I2C hardware interface
2250# intpm		Intel PIIX4 (82371AB, 82443MX) Power Management Unit
2251# alpm		Acer Aladdin-IV/V/Pro2 Power Management Unit
2252# ichsmb	Intel ICH SMBus controller chips (82801AA, 82801AB, 82801BA)
2253# viapm		VIA VT82C586B/596B/686A and VT8233 Power Management Unit
2254# amdpm		AMD 756 Power Management Unit
2255# amdsmb	AMD 8111 SMBus 2.0 Controller
2256# nfpm		NVIDIA nForce Power Management Unit
2257# nfsmb		NVIDIA nForce2/3/4 MCP SMBus 2.0 Controller
2258#
2259device		smbus		# Bus support, required for smb below.
2260
2261device		intpm
2262device		alpm
2263device		ichsmb
2264device		viapm
2265device		amdpm
2266device		amdsmb
2267device		nfpm
2268device		nfsmb
2269
2270device		smb
2271
2272#
2273# I2C Bus
2274#
2275# Philips i2c bus support is provided by the `iicbus' device.
2276#
2277# Supported devices:
2278# ic	i2c network interface
2279# iic	i2c standard io
2280# iicsmb i2c to smb bridge. Allow i2c i/o with smb commands.
2281#
2282# Supported interfaces:
2283# bktr	brooktree848 I2C software interface
2284#
2285# Other:
2286# iicbb	generic I2C bit-banging code (needed by lpbb, bktr)
2287#
2288device		iicbus		# Bus support, required for ic/iic/iicsmb below.
2289device		iicbb
2290
2291device		ic
2292device		iic
2293device		iicsmb		# smb over i2c bridge
2294
2295# Parallel-Port Bus
2296#
2297# Parallel port bus support is provided by the `ppbus' device.
2298# Multiple devices may be attached to the parallel port, devices
2299# are automatically probed and attached when found.
2300#
2301# Supported devices:
2302# vpo	Iomega Zip Drive
2303#	Requires SCSI disk support ('scbus' and 'da'), best
2304#	performance is achieved with ports in EPP 1.9 mode.
2305# lpt	Parallel Printer
2306# plip	Parallel network interface
2307# ppi	General-purpose I/O ("Geek Port") + IEEE1284 I/O
2308# pps	Pulse per second Timing Interface
2309# lpbb	Philips official parallel port I2C bit-banging interface
2310#
2311# Supported interfaces:
2312# ppc	ISA-bus parallel port interfaces.
2313#
2314
2315options 	PPC_PROBE_CHIPSET # Enable chipset specific detection
2316				  # (see flags in ppc(4))
2317options 	DEBUG_1284	# IEEE1284 signaling protocol debug
2318options 	PERIPH_1284	# Makes your computer act as an IEEE1284
2319				# compliant peripheral
2320options 	DONTPROBE_1284	# Avoid boot detection of PnP parallel devices
2321options 	VP0_DEBUG	# ZIP/ZIP+ debug
2322options 	LPT_DEBUG	# Printer driver debug
2323options 	PPC_DEBUG	# Parallel chipset level debug
2324options 	PLIP_DEBUG	# Parallel network IP interface debug
2325options 	PCFCLOCK_VERBOSE         # Verbose pcfclock driver
2326options 	PCFCLOCK_MAX_RETRIES=5   # Maximum read tries (default 10)
2327
2328device		ppc
2329hint.ppc.0.at="isa"
2330hint.ppc.0.irq="7"
2331device		ppbus
2332device		vpo
2333device		lpt
2334device		plip
2335device		ppi
2336device		pps
2337device		lpbb
2338device		pcfclock
2339
2340# Kernel BOOTP support
2341
2342options 	BOOTP		# Use BOOTP to obtain IP address/hostname
2343				# Requires NFSCLIENT and NFS_ROOT
2344options 	BOOTP_NFSROOT	# NFS mount root filesystem using BOOTP info
2345options 	BOOTP_NFSV3	# Use NFS v3 to NFS mount root
2346options 	BOOTP_COMPAT	# Workaround for broken bootp daemons.
2347options 	BOOTP_WIRED_TO=fxp0 # Use interface fxp0 for BOOTP
2348
2349#
2350# Add software watchdog routines.
2351#
2352options 	SW_WATCHDOG
2353
2354#
2355# Disable swapping of stack pages.  This option removes all
2356# code which actually performs swapping, so it's not possible to turn
2357# it back on at run-time.
2358#
2359# This is sometimes usable for systems which don't have any swap space
2360# (see also sysctls "vm.defer_swapspace_pageouts" and
2361# "vm.disable_swapspace_pageouts")
2362#
2363#options 	NO_SWAPPING
2364
2365# Set the number of sf_bufs to allocate. sf_bufs are virtual buffers
2366# for sendfile(2) that are used to map file VM pages, and normally
2367# default to a quantity that is roughly 16*MAXUSERS+512. You would
2368# typically want about 4 of these for each simultaneous file send.
2369#
2370options 	NSFBUFS=1024
2371
2372#
2373# Enable extra debugging code for locks.  This stores the filename and
2374# line of whatever acquired the lock in the lock itself, and change a
2375# number of function calls to pass around the relevant data.  This is
2376# not at all useful unless you are debugging lock code.  Also note
2377# that it is likely to break e.g. fstat(1) unless you recompile your
2378# userland with -DDEBUG_LOCKS as well.
2379#
2380options 	DEBUG_LOCKS
2381
2382
2383#####################################################################
2384# USB support
2385# UHCI controller
2386device		uhci
2387# OHCI controller
2388device		ohci
2389# EHCI controller
2390device		ehci
2391# SL811 Controller
2392device 		slhci
2393# General USB code (mandatory for USB)
2394device		usb
2395#
2396# USB Double Bulk Pipe devices
2397device		udbp
2398# USB Fm Radio
2399device		ufm
2400# Generic USB device driver
2401device		ugen
2402# Human Interface Device (anything with buttons and dials)
2403device		uhid
2404# USB keyboard
2405device		ukbd
2406# USB printer
2407device		ulpt
2408# USB Iomega Zip 100 Drive (Requires scbus and da)
2409device		umass
2410# USB support for Belkin F5U109 and Magic Control Technology serial adapters
2411device		umct
2412# USB modem support
2413device		umodem
2414# USB mouse
2415device		ums
2416# Diamond Rio 500 MP3 player
2417device		urio
2418# USB scanners
2419device		uscanner
2420#
2421# USB serial support
2422device		ucom
2423# USB support for Technologies ARK3116 based serial adapters
2424device		uark
2425# USB support for Belkin F5U103 and compatible serial adapters
2426device		ubsa
2427# USB support for BWCT console serial adapters
2428device		ubser
2429# USB support for serial adapters based on the FT8U100AX and FT8U232AM
2430device		uftdi
2431# USB support for some Windows CE based serial communication.
2432device		uipaq
2433# USB support for Prolific PL-2303 serial adapters
2434device		uplcom
2435# USB Visor and Palm devices
2436device		uvisor
2437# USB serial support for DDI pocket's PHS
2438device		uvscom
2439#
2440# ADMtek USB ethernet. Supports the LinkSys USB100TX,
2441# the Billionton USB100, the Melco LU-ATX, the D-Link DSB-650TX
2442# and the SMC 2202USB. Also works with the ADMtek AN986 Pegasus
2443# eval board.
2444device		aue
2445
2446# ASIX Electronics AX88172 USB 2.0 ethernet driver. Used in the
2447# LinkSys USB200M and various other adapters.
2448
2449device		axe
2450
2451#
2452# Devices which communicate using Ethernet over USB, particularly
2453# Communication Device Class (CDC) Ethernet specification. Supports
2454# Sharp Zaurus PDAs, some DOCSIS cable modems and so on.
2455device		cdce
2456#
2457# CATC USB-EL1201A USB ethernet. Supports the CATC Netmate
2458# and Netmate II, and the Belkin F5U111.
2459device		cue
2460#
2461# Kawasaki LSI ethernet. Supports the LinkSys USB10T,
2462# Entrega USB-NET-E45, Peracom Ethernet Adapter, the
2463# 3Com 3c19250, the ADS Technologies USB-10BT, the ATen UC10T,
2464# the Netgear EA101, the D-Link DSB-650, the SMC 2102USB
2465# and 2104USB, and the Corega USB-T.
2466device		kue
2467#
2468# RealTek RTL8150 USB to fast ethernet. Supports the Melco LUA-KTX
2469# and the GREEN HOUSE GH-USB100B.
2470device		rue
2471#
2472# Davicom DM9601E USB to fast ethernet. Supports the Corega FEther USB-TXC.
2473device		udav
2474
2475
2476# debugging options for the USB subsystem
2477#
2478options 	USB_DEBUG
2479
2480# options for ukbd:
2481options 	UKBD_DFLT_KEYMAP	# specify the built-in keymap
2482makeoptions	UKBD_DFLT_KEYMAP=it.iso
2483
2484# options for uplcom:
2485options 	UPLCOM_INTR_INTERVAL=100	# interrupt pipe interval
2486						# in milliseconds
2487
2488# options for uvscom:
2489options 	UVSCOM_DEFAULT_OPKTSIZE=8	# default output packet size
2490options 	UVSCOM_INTR_INTERVAL=100	# interrupt pipe interval
2491						# in milliseconds
2492
2493#####################################################################
2494# FireWire support
2495
2496device		firewire	# FireWire bus code
2497device		sbp		# SCSI over Firewire (Requires scbus and da)
2498device		sbp_targ	# SBP-2 Target mode  (Requires scbus and targ)
2499device		fwe		# Ethernet over FireWire (non-standard!)
2500device		fwip		# IP over FireWire (RFC2734 and RFC3146)
2501
2502#####################################################################
2503# dcons support (Dumb Console Device)
2504
2505device		dcons			# dumb console driver
2506device		dcons_crom		# FireWire attachment
2507options 	DCONS_BUF_SIZE=16384	# buffer size
2508options 	DCONS_POLL_HZ=100	# polling rate
2509options 	DCONS_FORCE_CONSOLE=0	# force to be the primary console
2510options 	DCONS_FORCE_GDB=1	# force to be the gdb device
2511
2512#####################################################################
2513# crypto subsystem
2514#
2515# This is a port of the OpenBSD crypto framework.  Include this when
2516# configuring IPSEC and when you have a h/w crypto device to accelerate
2517# user applications that link to OpenSSL.
2518#
2519# Drivers are ports from OpenBSD with some simple enhancements that have
2520# been fed back to OpenBSD.
2521
2522device		crypto		# core crypto support
2523device		cryptodev	# /dev/crypto for access to h/w
2524
2525device		rndtest		# FIPS 140-2 entropy tester
2526
2527device		hifn		# Hifn 7951, 7781, etc.
2528options 	HIFN_DEBUG	# enable debugging support: hw.hifn.debug
2529options 	HIFN_RNDTEST	# enable rndtest support
2530
2531device		ubsec		# Broadcom 5501, 5601, 58xx
2532options 	UBSEC_DEBUG	# enable debugging support: hw.ubsec.debug
2533options 	UBSEC_RNDTEST	# enable rndtest support
2534
2535#####################################################################
2536
2537
2538#
2539# Embedded system options:
2540#
2541# An embedded system might want to run something other than init.
2542options 	INIT_PATH=/sbin/init:/stand/sysinstall
2543
2544# Debug options
2545options 	BUS_DEBUG	# enable newbus debugging
2546options 	DEBUG_VFS_LOCKS	# enable VFS lock debugging
2547options 	SOCKBUF_DEBUG	# enable sockbuf last record/mb tail checking
2548
2549#
2550# Verbose SYSINIT
2551#
2552# Make the SYSINIT process performed by mi_startup() verbose.  This is very
2553# useful when porting to a new architecture.  If DDB is also enabled, this
2554# will print function names instead of addresses.
2555options 	VERBOSE_SYSINIT
2556
2557#####################################################################
2558# SYSV IPC KERNEL PARAMETERS
2559#
2560# Maximum number of entries in a semaphore map.
2561options 	SEMMAP=31
2562
2563# Maximum number of System V semaphores that can be used on the system at
2564# one time.
2565options 	SEMMNI=11
2566
2567# Total number of semaphores system wide
2568options 	SEMMNS=61
2569
2570# Total number of undo structures in system
2571options 	SEMMNU=31
2572
2573# Maximum number of System V semaphores that can be used by a single process
2574# at one time.
2575options 	SEMMSL=61
2576
2577# Maximum number of operations that can be outstanding on a single System V
2578# semaphore at one time.
2579options 	SEMOPM=101
2580
2581# Maximum number of undo operations that can be outstanding on a single
2582# System V semaphore at one time.
2583options 	SEMUME=11
2584
2585# Maximum number of shared memory pages system wide.
2586options 	SHMALL=1025
2587
2588# Maximum size, in bytes, of a single System V shared memory region.
2589options 	SHMMAX=(SHMMAXPGS*PAGE_SIZE+1)
2590options 	SHMMAXPGS=1025
2591
2592# Minimum size, in bytes, of a single System V shared memory region.
2593options 	SHMMIN=2
2594
2595# Maximum number of shared memory regions that can be used on the system
2596# at one time.
2597options 	SHMMNI=33
2598
2599# Maximum number of System V shared memory regions that can be attached to
2600# a single process at one time.
2601options 	SHMSEG=9
2602
2603# Set the amount of time (in seconds) the system will wait before
2604# rebooting automatically when a kernel panic occurs.  If set to (-1),
2605# the system will wait indefinitely until a key is pressed on the
2606# console.
2607options 	PANIC_REBOOT_WAIT_TIME=16
2608
2609# Attempt to bypass the buffer cache and put data directly into the
2610# userland buffer for read operation when O_DIRECT flag is set on the
2611# file.  Both offset and length of the read operation must be
2612# multiples of the physical media sector size.
2613#
2614options 	DIRECTIO
2615
2616# Specify a lower limit for the number of swap I/O buffers.  They are
2617# (among other things) used when bypassing the buffer cache due to
2618# DIRECTIO kernel option enabled and O_DIRECT flag set on file.
2619#
2620options 	NSWBUF_MIN=120
2621
2622#####################################################################
2623
2624# More undocumented options for linting.
2625# Note that documenting these are not considered an affront.
2626
2627options 	CAM_DEBUG_DELAY
2628
2629# VFS cluster debugging.
2630options 	CLUSTERDEBUG
2631
2632options 	DEBUG
2633
2634# Kernel filelock debugging.
2635options 	LOCKF_DEBUG
2636
2637# System V compatible message queues
2638# Please note that the values provided here are used to test kernel
2639# building.  The defaults in the sources provide almost the same numbers.
2640# MSGSSZ must be a power of 2 between 8 and 1024.
2641options 	MSGMNB=2049	# Max number of chars in queue
2642options 	MSGMNI=41	# Max number of message queue identifiers
2643options 	MSGSEG=2049	# Max number of message segments
2644options 	MSGSSZ=16	# Size of a message segment
2645options 	MSGTQL=41	# Max number of messages in system
2646
2647options 	NBUF=512	# Number of buffer headers
2648
2649options 	SCSI_NCR_DEBUG
2650options 	SCSI_NCR_MAX_SYNC=10000
2651options 	SCSI_NCR_MAX_WIDE=1
2652options 	SCSI_NCR_MYADDR=7
2653
2654options 	SC_DEBUG_LEVEL=5	# Syscons debug level
2655options 	SC_RENDER_DEBUG	# syscons rendering debugging
2656
2657options 	SHOW_BUSYBUFS	# List buffers that prevent root unmount
2658options 	SLIP_IFF_OPTS
2659options 	VFS_BIO_DEBUG	# VFS buffer I/O debugging
2660
2661options 	KSTACK_MAX_PAGES=32 # Maximum pages to give the kernel stack
2662
2663# Adaptec Array Controller driver options
2664options 	AAC_DEBUG	# Debugging levels:
2665				# 0 - quiet, only emit warnings
2666				# 1 - noisy, emit major function
2667				#     points and things done
2668				# 2 - extremely noisy, emit trace
2669				#     items in loops, etc.
2670
2671# Yet more undocumented options for linting.
2672# BKTR_ALLOC_PAGES has no effect except to cause warnings, and
2673# BROOKTREE_ALLOC_PAGES hasn't actually been superseded by it, since the
2674# driver still mostly spells this option BROOKTREE_ALLOC_PAGES.
2675##options 	BKTR_ALLOC_PAGES=(217*4+1)
2676options 	BROOKTREE_ALLOC_PAGES=(217*4+1)
2677options 	MAXFILES=999
2678