xref: /freebsd/sys/conf/NOTES (revision 97bd480fe38abb5950359b9d864a62037b4ab5f7)
1# $FreeBSD$
2#
3# NOTES -- Lines that can be cut/pasted into kernel and hints configs.
4#
5# Lines that begin with 'device', 'options', 'machine', 'ident', 'maxusers',
6# 'makeoptions', 'hints', etc. go into the kernel configuration that you
7# run config(8) with.
8#
9# Lines that begin with 'hint.' are NOT for config(8), they go into your
10# hints file.  See /boot/device.hints and/or the 'hints' config(8) directive.
11#
12# Please use ``make LINT'' to create an old-style LINT file if you want to
13# do kernel test-builds.
14#
15# This file contains machine independent kernel configuration notes.  For
16# machine dependent notes, look in /sys/<arch>/conf/NOTES.
17#
18
19#
20# NOTES conventions and style guide:
21#
22# Large block comments should begin and end with a line containing only a
23# comment character.
24#
25# To describe a particular object, a block comment (if it exists) should
26# come first.  Next should come device, options, and hints lines in that
27# order.  All device and option lines must be described by a comment that
28# doesn't just expand the device or option name.  Use only a concise
29# comment on the same line if possible.  Very detailed descriptions of
30# devices and subsystems belong in man pages.
31#
32# A space followed by a tab separates 'options' from an option name.  Two
33# spaces followed by a tab separate 'device' from a device name.  Comments
34# after an option or device should use one space after the comment character.
35# To comment out a negative option that disables code and thus should not be
36# enabled for LINT builds, precede 'options' with "#!".
37#
38
39#
40# This is the ``identification'' of the kernel.  Usually this should
41# be the same as the name of your kernel.
42#
43ident		LINT
44
45#
46# The `maxusers' parameter controls the static sizing of a number of
47# internal system tables by a formula defined in subr_param.c.
48# Omitting this parameter or setting it to 0 will cause the system to
49# auto-size based on physical memory.
50#
51maxusers	10
52
53# To statically compile in device wiring instead of /boot/device.hints
54#hints		"LINT.hints"		# Default places to look for devices.
55
56# Use the following to compile in values accessible to the kernel
57# through getenv() (or kenv(1) in userland). The format of the file
58# is 'variable=value', see kenv(1)
59#
60#env		"LINT.env"
61
62#
63# The `makeoptions' parameter allows variables to be passed to the
64# generated Makefile in the build area.
65#
66# CONF_CFLAGS gives some extra compiler flags that are added to ${CFLAGS}
67# after most other flags.  Here we use it to inhibit use of non-optimal
68# gcc built-in functions (e.g., memcmp).
69#
70# DEBUG happens to be magic.
71# The following is equivalent to 'config -g KERNELNAME' and creates
72# 'kernel.debug' compiled with -g debugging as well as a normal
73# 'kernel'.  Use 'make install.debug' to install the debug kernel
74# but that isn't normally necessary as the debug symbols are not loaded
75# by the kernel and are not useful there anyway.
76#
77# KERNEL can be overridden so that you can change the default name of your
78# kernel.
79#
80# MODULES_OVERRIDE can be used to limit modules built to a specific list.
81#
82makeoptions	CONF_CFLAGS=-fno-builtin  #Don't allow use of memcmp, etc.
83#makeoptions	DEBUG=-g		#Build kernel with gdb(1) debug symbols
84#makeoptions	KERNEL=foo		#Build kernel "foo" and install "/foo"
85# Only build ext2fs module plus those parts of the sound system I need.
86#makeoptions	MODULES_OVERRIDE="ext2fs sound/sound sound/driver/maestro3"
87makeoptions	DESTDIR=/tmp
88
89#
90# FreeBSD processes are subject to certain limits to their consumption
91# of system resources.  See getrlimit(2) for more details.  Each
92# resource limit has two values, a "soft" limit and a "hard" limit.
93# The soft limits can be modified during normal system operation, but
94# the hard limits are set at boot time.  Their default values are
95# in sys/<arch>/include/vmparam.h.  There are two ways to change them:
96#
97# 1.  Set the values at kernel build time.  The options below are one
98#     way to allow that limit to grow to 1GB.  They can be increased
99#     further by changing the parameters:
100#
101# 2.  In /boot/loader.conf, set the tunables kern.maxswzone,
102#     kern.maxbcache, kern.maxtsiz, kern.dfldsiz, kern.maxdsiz,
103#     kern.dflssiz, kern.maxssiz and kern.sgrowsiz.
104#
105# The options in /boot/loader.conf override anything in the kernel
106# configuration file.  See the function init_param1 in
107# sys/kern/subr_param.c for more details.
108#
109
110options 	MAXDSIZ=(1024UL*1024*1024)
111options 	MAXSSIZ=(128UL*1024*1024)
112options 	DFLDSIZ=(1024UL*1024*1024)
113
114#
115# BLKDEV_IOSIZE sets the default block size used in user block
116# device I/O.  Note that this value will be overridden by the label
117# when specifying a block device from a label with a non-0
118# partition blocksize.  The default is PAGE_SIZE.
119#
120options 	BLKDEV_IOSIZE=8192
121
122#
123# MAXPHYS and DFLTPHYS
124#
125# These are the maximal and safe 'raw' I/O block device access sizes.
126# Reads and writes will be split into MAXPHYS chunks for known good
127# devices and DFLTPHYS for the rest. Some applications have better
128# performance with larger raw I/O access sizes. Note that certain VM
129# parameters are derived from these values and making them too large
130# can make an unbootable kernel.
131#
132# The defaults are 64K and 128K respectively.
133options 	DFLTPHYS=(64*1024)
134options 	MAXPHYS=(128*1024)
135
136
137# This allows you to actually store this configuration file into
138# the kernel binary itself. See config(8) for more details.
139#
140options 	INCLUDE_CONFIG_FILE     # Include this file in kernel
141
142#
143# Compile-time defaults for various boot parameters
144#
145options 	BOOTVERBOSE=1
146options 	BOOTHOWTO=RB_MULTIPLE
147
148options 	GEOM_AES		# Don't use, use GEOM_BDE
149options 	GEOM_BDE		# Disk encryption.
150options 	GEOM_BSD		# BSD disklabels
151options 	GEOM_CACHE		# Disk cache.
152options 	GEOM_CONCAT		# Disk concatenation.
153options 	GEOM_ELI		# Disk encryption.
154options 	GEOM_FOX		# Redundant path mitigation
155options 	GEOM_GATE		# Userland services.
156options 	GEOM_JOURNAL		# Journaling.
157options 	GEOM_LABEL		# Providers labelization.
158options 	GEOM_LINUX_LVM		# Linux LVM2 volumes
159options 	GEOM_MBR		# DOS/MBR partitioning
160options 	GEOM_MIRROR		# Disk mirroring.
161options 	GEOM_MULTIPATH		# Disk multipath
162options 	GEOM_NOP		# Test class.
163options 	GEOM_PART_APM		# Apple partitioning
164options 	GEOM_PART_BSD		# BSD disklabel
165options 	GEOM_PART_EBR		# Extended Boot Records
166options 	GEOM_PART_EBR_COMPAT	# Backward compatible partition names
167options 	GEOM_PART_GPT		# GPT partitioning
168options 	GEOM_PART_LDM		# Logical Disk Manager
169options 	GEOM_PART_MBR		# MBR partitioning
170options 	GEOM_PART_PC98		# PC-9800 disk partitioning
171options 	GEOM_PART_VTOC8		# SMI VTOC8 disk label
172options 	GEOM_PC98		# NEC PC9800 partitioning
173options 	GEOM_RAID		# Soft RAID functionality.
174options 	GEOM_RAID3		# RAID3 functionality.
175options 	GEOM_SHSEC		# Shared secret.
176options 	GEOM_STRIPE		# Disk striping.
177options 	GEOM_SUNLABEL		# Sun/Solaris partitioning
178options 	GEOM_UZIP		# Read-only compressed disks
179options 	GEOM_VIRSTOR		# Virtual storage.
180options 	GEOM_VOL		# Volume names from UFS superblock
181options 	GEOM_ZERO		# Performance testing helper.
182
183#
184# The root device and filesystem type can be compiled in;
185# this provides a fallback option if the root device cannot
186# be correctly guessed by the bootstrap code, or an override if
187# the RB_DFLTROOT flag (-r) is specified when booting the kernel.
188#
189options 	ROOTDEVNAME=\"ufs:da0s2e\"
190
191
192#####################################################################
193# Scheduler options:
194#
195# Specifying one of SCHED_4BSD or SCHED_ULE is mandatory.  These options
196# select which scheduler is compiled in.
197#
198# SCHED_4BSD is the historical, proven, BSD scheduler.  It has a global run
199# queue and no CPU affinity which makes it suboptimal for SMP.  It has very
200# good interactivity and priority selection.
201#
202# SCHED_ULE provides significant performance advantages over 4BSD on many
203# workloads on SMP machines.  It supports cpu-affinity, per-cpu runqueues
204# and scheduler locks.  It also has a stronger notion of interactivity
205# which leads to better responsiveness even on uniprocessor machines.  This
206# is the default scheduler.
207#
208# SCHED_STATS is a debugging option which keeps some stats in the sysctl
209# tree at 'kern.sched.stats' and is useful for debugging scheduling decisions.
210#
211options 	SCHED_4BSD
212options 	SCHED_STATS
213#options 	SCHED_ULE
214
215#####################################################################
216# SMP OPTIONS:
217#
218# SMP enables building of a Symmetric MultiProcessor Kernel.
219
220# Mandatory:
221options 	SMP			# Symmetric MultiProcessor Kernel
222
223# MAXCPU defines the maximum number of CPUs that can boot in the system.
224# A default value should be already present, for every architecture.
225options 	MAXCPU=32
226
227# MAXMEMDOM defines the maximum number of memory domains that can boot in the
228# system.  A default value should already be defined by every architecture.
229options 	MAXMEMDOM=1
230
231# ADAPTIVE_MUTEXES changes the behavior of blocking mutexes to spin
232# if the thread that currently owns the mutex is executing on another
233# CPU.  This behavior is enabled by default, so this option can be used
234# to disable it.
235options 	NO_ADAPTIVE_MUTEXES
236
237# ADAPTIVE_RWLOCKS changes the behavior of reader/writer locks to spin
238# if the thread that currently owns the rwlock is executing on another
239# CPU.  This behavior is enabled by default, so this option can be used
240# to disable it.
241options 	NO_ADAPTIVE_RWLOCKS
242
243# ADAPTIVE_SX changes the behavior of sx locks to spin if the thread that
244# currently owns the sx lock is executing on another CPU.
245# This behavior is enabled by default, so this option can be used to
246# disable it.
247options 	NO_ADAPTIVE_SX
248
249# MUTEX_NOINLINE forces mutex operations to call functions to perform each
250# operation rather than inlining the simple cases.  This can be used to
251# shrink the size of the kernel text segment.  Note that this behavior is
252# already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
253# and WITNESS options.
254options 	MUTEX_NOINLINE
255
256# RWLOCK_NOINLINE forces rwlock operations to call functions to perform each
257# operation rather than inlining the simple cases.  This can be used to
258# shrink the size of the kernel text segment.  Note that this behavior is
259# already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
260# and WITNESS options.
261options 	RWLOCK_NOINLINE
262
263# SX_NOINLINE forces sx lock operations to call functions to perform each
264# operation rather than inlining the simple cases.  This can be used to
265# shrink the size of the kernel text segment.  Note that this behavior is
266# already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
267# and WITNESS options.
268options 	SX_NOINLINE
269
270# SMP Debugging Options:
271#
272# CALLOUT_PROFILING enables rudimentary profiling of the callwheel data
273#	  structure used as backend in callout(9).
274# PREEMPTION allows the threads that are in the kernel to be preempted by
275#	  higher priority [interrupt] threads.  It helps with interactivity
276#	  and allows interrupt threads to run sooner rather than waiting.
277#	  WARNING! Only tested on amd64 and i386.
278# FULL_PREEMPTION instructs the kernel to preempt non-realtime kernel
279#	  threads.  Its sole use is to expose race conditions and other
280#	  bugs during development.  Enabling this option will reduce
281#	  performance and increase the frequency of kernel panics by
282#	  design.  If you aren't sure that you need it then you don't.
283#	  Relies on the PREEMPTION option.  DON'T TURN THIS ON.
284# MUTEX_DEBUG enables various extra assertions in the mutex code.
285# SLEEPQUEUE_PROFILING enables rudimentary profiling of the hash table
286#	  used to hold active sleep queues as well as sleep wait message
287#	  frequency.
288# TURNSTILE_PROFILING enables rudimentary profiling of the hash table
289#	  used to hold active lock queues.
290# UMTX_PROFILING enables rudimentary profiling of the hash table used
291	  to hold active lock queues.
292# WITNESS enables the witness code which detects deadlocks and cycles
293#         during locking operations.
294# WITNESS_KDB causes the witness code to drop into the kernel debugger if
295#	  a lock hierarchy violation occurs or if locks are held when going to
296#	  sleep.
297# WITNESS_SKIPSPIN disables the witness checks on spin mutexes.
298options 	PREEMPTION
299options 	FULL_PREEMPTION
300options 	MUTEX_DEBUG
301options 	WITNESS
302options 	WITNESS_KDB
303options 	WITNESS_SKIPSPIN
304
305# LOCK_PROFILING - Profiling locks.  See LOCK_PROFILING(9) for details.
306options 	LOCK_PROFILING
307# Set the number of buffers and the hash size.  The hash size MUST be larger
308# than the number of buffers.  Hash size should be prime.
309options 	MPROF_BUFFERS="1536"
310options 	MPROF_HASH_SIZE="1543"
311
312# Profiling for the callout(9) backend.
313options 	CALLOUT_PROFILING
314
315# Profiling for internal hash tables.
316options 	SLEEPQUEUE_PROFILING
317options 	TURNSTILE_PROFILING
318options 	UMTX_PROFILING
319
320
321#####################################################################
322# COMPATIBILITY OPTIONS
323
324#
325# Implement system calls compatible with 4.3BSD and older versions of
326# FreeBSD.  You probably do NOT want to remove this as much current code
327# still relies on the 4.3 emulation.  Note that some architectures that
328# are supported by FreeBSD do not include support for certain important
329# aspects of this compatibility option, namely those related to the
330# signal delivery mechanism.
331#
332options 	COMPAT_43
333
334# Old tty interface.
335options 	COMPAT_43TTY
336
337# Note that as a general rule, COMPAT_FREEBSD<n> depends on
338# COMPAT_FREEBSD<n+1>, COMPAT_FREEBSD<n+2>, etc.
339
340# Enable FreeBSD4 compatibility syscalls
341options 	COMPAT_FREEBSD4
342
343# Enable FreeBSD5 compatibility syscalls
344options 	COMPAT_FREEBSD5
345
346# Enable FreeBSD6 compatibility syscalls
347options 	COMPAT_FREEBSD6
348
349# Enable FreeBSD7 compatibility syscalls
350options 	COMPAT_FREEBSD7
351
352#
353# These three options provide support for System V Interface
354# Definition-style interprocess communication, in the form of shared
355# memory, semaphores, and message queues, respectively.
356#
357options 	SYSVSHM
358options 	SYSVSEM
359options 	SYSVMSG
360
361
362#####################################################################
363# DEBUGGING OPTIONS
364
365#
366# Compile with kernel debugger related code.
367#
368options 	KDB
369
370#
371# Print a stack trace of the current thread on the console for a panic.
372#
373options 	KDB_TRACE
374
375#
376# Don't enter the debugger for a panic. Intended for unattended operation
377# where you may want to enter the debugger from the console, but still want
378# the machine to recover from a panic.
379#
380options 	KDB_UNATTENDED
381
382#
383# Enable the ddb debugger backend.
384#
385options 	DDB
386
387#
388# Print the numerical value of symbols in addition to the symbolic
389# representation.
390#
391options 	DDB_NUMSYM
392
393#
394# Enable the remote gdb debugger backend.
395#
396options 	GDB
397
398#
399# SYSCTL_DEBUG enables a 'sysctl' debug tree that can be used to dump the
400# contents of the registered sysctl nodes on the console.  It is disabled by
401# default because it generates excessively verbose console output that can
402# interfere with serial console operation.
403#
404options 	SYSCTL_DEBUG
405
406#
407# Enable textdump by default, this disables kernel core dumps.
408#
409options		TEXTDUMP_PREFERRED
410
411#
412# Enable extra debug messages while performing textdumps.
413#
414options		TEXTDUMP_VERBOSE
415
416#
417# NO_SYSCTL_DESCR omits the sysctl node descriptions to save space in the
418# resulting kernel.
419options		NO_SYSCTL_DESCR
420
421#
422# MALLOC_DEBUG_MAXZONES enables multiple uma zones for malloc(9)
423# allocations that are smaller than a page.  The purpose is to isolate
424# different malloc types into hash classes, so that any buffer
425# overruns or use-after-free will usually only affect memory from
426# malloc types in that hash class.  This is purely a debugging tool;
427# by varying the hash function and tracking which hash class was
428# corrupted, the intersection of the hash classes from each instance
429# will point to a single malloc type that is being misused.  At this
430# point inspection or memguard(9) can be used to catch the offending
431# code.
432#
433options 	MALLOC_DEBUG_MAXZONES=8
434
435#
436# DEBUG_MEMGUARD builds and enables memguard(9), a replacement allocator
437# for the kernel used to detect modify-after-free scenarios.  See the
438# memguard(9) man page for more information on usage.
439#
440options 	DEBUG_MEMGUARD
441
442#
443# DEBUG_REDZONE enables buffer underflows and buffer overflows detection for
444# malloc(9).
445#
446options 	DEBUG_REDZONE
447
448#
449# EARLY_PRINTF enables support for calling a special printf (eprintf)
450# very early in the kernel (before cn_init() has been called).  This
451# should only be used for debugging purposes early in boot.  Normally,
452# it is not defined.  It is commented out here because this feature
453# isn't generally available. And the required eputc() isn't defined.
454#
455#options	EARLY_PRINTF
456
457#
458# KTRACE enables the system-call tracing facility ktrace(2).  To be more
459# SMP-friendly, KTRACE uses a worker thread to process most trace events
460# asynchronously to the thread generating the event.  This requires a
461# pre-allocated store of objects representing trace events.  The
462# KTRACE_REQUEST_POOL option specifies the initial size of this store.
463# The size of the pool can be adjusted both at boottime and runtime via
464# the kern.ktrace_request_pool tunable and sysctl.
465#
466options 	KTRACE			#kernel tracing
467options 	KTRACE_REQUEST_POOL=101
468
469#
470# KTR is a kernel tracing facility imported from BSD/OS.  It is
471# enabled with the KTR option.  KTR_ENTRIES defines the number of
472# entries in the circular trace buffer; it may be an arbitrary number.
473# KTR_BOOT_ENTRIES defines the number of entries during the early boot,
474# before malloc(9) is functional.
475# KTR_COMPILE defines the mask of events to compile into the kernel as
476# defined by the KTR_* constants in <sys/ktr.h>.  KTR_MASK defines the
477# initial value of the ktr_mask variable which determines at runtime
478# what events to trace.  KTR_CPUMASK determines which CPU's log
479# events, with bit X corresponding to CPU X.  The layout of the string
480# passed as KTR_CPUMASK must match a series of bitmasks each of them
481# separated by the "," character (ie:
482# KTR_CPUMASK=0xAF,0xFFFFFFFFFFFFFFFF).  KTR_VERBOSE enables
483# dumping of KTR events to the console by default.  This functionality
484# can be toggled via the debug.ktr_verbose sysctl and defaults to off
485# if KTR_VERBOSE is not defined.  See ktr(4) and ktrdump(8) for details.
486#
487options 	KTR
488options 	KTR_BOOT_ENTRIES=1024
489options 	KTR_ENTRIES=(128*1024)
490options 	KTR_COMPILE=(KTR_INTR|KTR_PROC)
491options 	KTR_MASK=KTR_INTR
492options 	KTR_CPUMASK=0x3
493options 	KTR_VERBOSE
494
495#
496# ALQ(9) is a facility for the asynchronous queuing of records from the kernel
497# to a vnode, and is employed by services such as ktr(4) to produce trace
498# files based on a kernel event stream.  Records are written asynchronously
499# in a worker thread.
500#
501options 	ALQ
502options 	KTR_ALQ
503
504#
505# The INVARIANTS option is used in a number of source files to enable
506# extra sanity checking of internal structures.  This support is not
507# enabled by default because of the extra time it would take to check
508# for these conditions, which can only occur as a result of
509# programming errors.
510#
511options 	INVARIANTS
512
513#
514# The INVARIANT_SUPPORT option makes us compile in support for
515# verifying some of the internal structures.  It is a prerequisite for
516# 'INVARIANTS', as enabling 'INVARIANTS' will make these functions be
517# called.  The intent is that you can set 'INVARIANTS' for single
518# source files (by changing the source file or specifying it on the
519# command line) if you have 'INVARIANT_SUPPORT' enabled.  Also, if you
520# wish to build a kernel module with 'INVARIANTS', then adding
521# 'INVARIANT_SUPPORT' to your kernel will provide all the necessary
522# infrastructure without the added overhead.
523#
524options 	INVARIANT_SUPPORT
525
526#
527# The DIAGNOSTIC option is used to enable extra debugging information
528# from some parts of the kernel.  As this makes everything more noisy,
529# it is disabled by default.
530#
531options 	DIAGNOSTIC
532
533#
534# REGRESSION causes optional kernel interfaces necessary only for regression
535# testing to be enabled.  These interfaces may constitute security risks
536# when enabled, as they permit processes to easily modify aspects of the
537# run-time environment to reproduce unlikely or unusual (possibly normally
538# impossible) scenarios.
539#
540options 	REGRESSION
541
542#
543# This option lets some drivers co-exist that can't co-exist in a running
544# system.  This is used to be able to compile all kernel code in one go for
545# quality assurance purposes (like this file, which the option takes it name
546# from.)
547#
548options 	COMPILING_LINT
549
550#
551# STACK enables the stack(9) facility, allowing the capture of kernel stack
552# for the purpose of procinfo(1), etc.  stack(9) will also be compiled in
553# automatically if DDB(4) is compiled into the kernel.
554#
555options 	STACK
556
557
558#####################################################################
559# PERFORMANCE MONITORING OPTIONS
560
561#
562# The hwpmc driver that allows the use of in-CPU performance monitoring
563# counters for performance monitoring.  The base kernel needs to be configured
564# with the 'options' line, while the hwpmc device can be either compiled
565# in or loaded as a loadable kernel module.
566#
567# Additional configuration options may be required on specific architectures,
568# please see hwpmc(4).
569
570device		hwpmc			# Driver (also a loadable module)
571options 	HWPMC_HOOKS		# Other necessary kernel hooks
572
573
574#####################################################################
575# NETWORKING OPTIONS
576
577#
578# Protocol families
579#
580options 	INET			#Internet communications protocols
581options 	INET6			#IPv6 communications protocols
582
583options 	ROUTETABLES=2		# allocated fibs up to 65536. default is 1.
584					# but that would be a bad idea as they are large.
585
586options 	TCP_OFFLOAD		# TCP offload support.
587
588# In order to enable IPSEC you MUST also add device crypto to
589# your kernel configuration
590options 	IPSEC			#IP security (requires device crypto)
591#options 	IPSEC_DEBUG		#debug for IP security
592#
593# #DEPRECATED#
594# Set IPSEC_FILTERTUNNEL to change the default of the sysctl to force packets
595# coming through a tunnel to be processed by any configured packet filtering
596# twice. The default is that packets coming out of a tunnel are _not_ processed;
597# they are assumed trusted.
598#
599# IPSEC history is preserved for such packets, and can be filtered
600# using ipfw(8)'s 'ipsec' keyword, when this option is enabled.
601#
602#options 	IPSEC_FILTERTUNNEL	#filter ipsec packets from a tunnel
603#
604# Set IPSEC_NAT_T to enable NAT-Traversal support.  This enables
605# optional UDP encapsulation of ESP packets.
606#
607options		IPSEC_NAT_T		#NAT-T support, UDP encap of ESP
608
609#
610# SMB/CIFS requester
611# NETSMB enables support for SMB protocol, it requires LIBMCHAIN and LIBICONV
612# options.
613options 	NETSMB			#SMB/CIFS requester
614
615# mchain library. It can be either loaded as KLD or compiled into kernel
616options 	LIBMCHAIN
617
618# libalias library, performing NAT
619options 	LIBALIAS
620
621# flowtable cache
622options 	FLOWTABLE
623
624#
625# SCTP is a NEW transport protocol defined by
626# RFC2960 updated by RFC3309 and RFC3758.. and
627# soon to have a new base RFC and many many more
628# extensions. This release supports all the extensions
629# including many drafts (most about to become RFC's).
630# It is the reference implementation of SCTP
631# and is quite well tested.
632#
633# Note YOU MUST have both INET and INET6 defined.
634# You don't have to enable V6, but SCTP is
635# dual stacked and so far we have not torn apart
636# the V6 and V4.. since an association can span
637# both a V6 and V4 address at the SAME time :-)
638#
639options 	SCTP
640# There are bunches of options:
641# this one turns on all sorts of
642# nastily printing that you can
643# do. It's all controlled by a
644# bit mask (settable by socket opt and
645# by sysctl). Including will not cause
646# logging until you set the bits.. but it
647# can be quite verbose.. so without this
648# option we don't do any of the tests for
649# bits and prints.. which makes the code run
650# faster.. if you are not debugging don't use.
651options 	SCTP_DEBUG
652#
653# This option turns off the CRC32c checksum. Basically,
654# you will not be able to talk to anyone else who
655# has not done this. Its more for experimentation to
656# see how much CPU the CRC32c really takes. Most new
657# cards for TCP support checksum offload.. so this
658# option gives you a "view" into what SCTP would be
659# like with such an offload (which only exists in
660# high in iSCSI boards so far). With the new
661# splitting 8's algorithm its not as bad as it used
662# to be.. but it does speed things up try only
663# for in a captured lab environment :-)
664options 	SCTP_WITH_NO_CSUM
665#
666
667#
668# All that options after that turn on specific types of
669# logging. You can monitor CWND growth, flight size
670# and all sorts of things. Go look at the code and
671# see. I have used this to produce interesting
672# charts and graphs as well :->
673#
674# I have not yet committed the tools to get and print
675# the logs, I will do that eventually .. before then
676# if you want them send me an email rrs@freebsd.org
677# You basically must have ktr(4) enabled for these
678# and you then set the sysctl to turn on/off various
679# logging bits. Use ktrdump(8) to pull the log and run
680# it through a display program.. and graphs and other
681# things too.
682#
683options 	SCTP_LOCK_LOGGING
684options 	SCTP_MBUF_LOGGING
685options 	SCTP_MBCNT_LOGGING
686options 	SCTP_PACKET_LOGGING
687options 	SCTP_LTRACE_CHUNKS
688options 	SCTP_LTRACE_ERRORS
689
690
691# altq(9). Enable the base part of the hooks with the ALTQ option.
692# Individual disciplines must be built into the base system and can not be
693# loaded as modules at this point. ALTQ requires a stable TSC so if yours is
694# broken or changes with CPU throttling then you must also have the ALTQ_NOPCC
695# option.
696options 	ALTQ
697options 	ALTQ_CBQ	# Class Based Queueing
698options 	ALTQ_RED	# Random Early Detection
699options 	ALTQ_RIO	# RED In/Out
700options 	ALTQ_HFSC	# Hierarchical Packet Scheduler
701options 	ALTQ_CDNR	# Traffic conditioner
702options 	ALTQ_PRIQ	# Priority Queueing
703options 	ALTQ_NOPCC	# Required if the TSC is unusable
704options 	ALTQ_DEBUG
705
706# netgraph(4). Enable the base netgraph code with the NETGRAPH option.
707# Individual node types can be enabled with the corresponding option
708# listed below; however, this is not strictly necessary as netgraph
709# will automatically load the corresponding KLD module if the node type
710# is not already compiled into the kernel. Each type below has a
711# corresponding man page, e.g., ng_async(8).
712options 	NETGRAPH		# netgraph(4) system
713options 	NETGRAPH_DEBUG		# enable extra debugging, this
714					# affects netgraph(4) and nodes
715# Node types
716options 	NETGRAPH_ASYNC
717options 	NETGRAPH_ATMLLC
718options 	NETGRAPH_ATM_ATMPIF
719options 	NETGRAPH_BLUETOOTH		# ng_bluetooth(4)
720options 	NETGRAPH_BLUETOOTH_BT3C		# ng_bt3c(4)
721options 	NETGRAPH_BLUETOOTH_HCI		# ng_hci(4)
722options 	NETGRAPH_BLUETOOTH_L2CAP	# ng_l2cap(4)
723options 	NETGRAPH_BLUETOOTH_SOCKET	# ng_btsocket(4)
724options 	NETGRAPH_BLUETOOTH_UBT		# ng_ubt(4)
725options 	NETGRAPH_BLUETOOTH_UBTBCMFW	# ubtbcmfw(4)
726options 	NETGRAPH_BPF
727options 	NETGRAPH_BRIDGE
728options 	NETGRAPH_CAR
729options 	NETGRAPH_CISCO
730options 	NETGRAPH_DEFLATE
731options 	NETGRAPH_DEVICE
732options 	NETGRAPH_ECHO
733options 	NETGRAPH_EIFACE
734options 	NETGRAPH_ETHER
735options 	NETGRAPH_FRAME_RELAY
736options 	NETGRAPH_GIF
737options 	NETGRAPH_GIF_DEMUX
738options 	NETGRAPH_HOLE
739options 	NETGRAPH_IFACE
740options 	NETGRAPH_IP_INPUT
741options 	NETGRAPH_IPFW
742options 	NETGRAPH_KSOCKET
743options 	NETGRAPH_L2TP
744options 	NETGRAPH_LMI
745# MPPC compression requires proprietary files (not included)
746#options 	NETGRAPH_MPPC_COMPRESSION
747options 	NETGRAPH_MPPC_ENCRYPTION
748options 	NETGRAPH_NETFLOW
749options 	NETGRAPH_NAT
750options 	NETGRAPH_ONE2MANY
751options 	NETGRAPH_PATCH
752options 	NETGRAPH_PIPE
753options 	NETGRAPH_PPP
754options 	NETGRAPH_PPPOE
755options 	NETGRAPH_PPTPGRE
756options 	NETGRAPH_PRED1
757options 	NETGRAPH_RFC1490
758options 	NETGRAPH_SOCKET
759options 	NETGRAPH_SPLIT
760options 	NETGRAPH_SPPP
761options 	NETGRAPH_TAG
762options 	NETGRAPH_TCPMSS
763options 	NETGRAPH_TEE
764options 	NETGRAPH_UI
765options 	NETGRAPH_VJC
766options 	NETGRAPH_VLAN
767
768# NgATM - Netgraph ATM
769options 	NGATM_ATM
770options 	NGATM_ATMBASE
771options 	NGATM_SSCOP
772options 	NGATM_SSCFU
773options 	NGATM_UNI
774options 	NGATM_CCATM
775
776device		mn	# Munich32x/Falc54 Nx64kbit/sec cards.
777
778# Network stack virtualization.
779#options	VIMAGE
780#options	VNET_DEBUG	# debug for VIMAGE
781
782#
783# Network interfaces:
784#  The `loop' device is MANDATORY when networking is enabled.
785device		loop
786
787#  The `ether' device provides generic code to handle
788#  Ethernets; it is MANDATORY when an Ethernet device driver is
789#  configured or token-ring is enabled.
790device		ether
791
792#  The `vlan' device implements the VLAN tagging of Ethernet frames
793#  according to IEEE 802.1Q.
794device		vlan
795
796#  The `wlan' device provides generic code to support 802.11
797#  drivers, including host AP mode; it is MANDATORY for the wi,
798#  and ath drivers and will eventually be required by all 802.11 drivers.
799device		wlan
800options 	IEEE80211_DEBUG		#enable debugging msgs
801options 	IEEE80211_AMPDU_AGE	#age frames in AMPDU reorder q's
802options 	IEEE80211_SUPPORT_MESH	#enable 802.11s D3.0 support
803options 	IEEE80211_SUPPORT_TDMA	#enable TDMA support
804
805#  The `wlan_wep', `wlan_tkip', and `wlan_ccmp' devices provide
806#  support for WEP, TKIP, and AES-CCMP crypto protocols optionally
807#  used with 802.11 devices that depend on the `wlan' module.
808device		wlan_wep
809device		wlan_ccmp
810device		wlan_tkip
811
812#  The `wlan_xauth' device provides support for external (i.e. user-mode)
813#  authenticators for use with 802.11 drivers that use the `wlan'
814#  module and support 802.1x and/or WPA security protocols.
815device		wlan_xauth
816
817#  The `wlan_acl' device provides a MAC-based access control mechanism
818#  for use with 802.11 drivers operating in ap mode and using the
819#  `wlan' module.
820#  The 'wlan_amrr' device provides AMRR transmit rate control algorithm
821device		wlan_acl
822device		wlan_amrr
823
824# Generic TokenRing
825device		token
826
827#  The `fddi' device provides generic code to support FDDI.
828device		fddi
829
830#  The `arcnet' device provides generic code to support Arcnet.
831device		arcnet
832
833#  The `sppp' device serves a similar role for certain types
834#  of synchronous PPP links (like `cx', `ar').
835device		sppp
836
837#  The `bpf' device enables the Berkeley Packet Filter.  Be
838#  aware of the legal and administrative consequences of enabling this
839#  option.  DHCP requires bpf.
840device		bpf
841
842#  The `netmap' device implements memory-mapped access to network
843#  devices from userspace, enabling wire-speed packet capture and
844#  generation even at 10Gbit/s. Requires support in the device
845#  driver. Supported drivers are ixgbe, e1000, re.
846device		netmap
847
848#  The `disc' device implements a minimal network interface,
849#  which throws away all packets sent and never receives any.  It is
850#  included for testing and benchmarking purposes.
851device		disc
852
853# The `epair' device implements a virtual back-to-back connected Ethernet
854# like interface pair.
855device		epair
856
857#  The `edsc' device implements a minimal Ethernet interface,
858#  which discards all packets sent and receives none.
859device		edsc
860
861#  The `tap' device is a pty-like virtual Ethernet interface
862device		tap
863
864#  The `tun' device implements (user-)ppp and nos-tun(8)
865device		tun
866
867#  The `gif' device implements IPv6 over IP4 tunneling,
868#  IPv4 over IPv6 tunneling, IPv4 over IPv4 tunneling and
869#  IPv6 over IPv6 tunneling.
870#  The `gre' device implements two types of IP4 over IP4 tunneling:
871#  GRE and MOBILE, as specified in the RFC1701 and RFC2004.
872#  The XBONEHACK option allows the same pair of addresses to be configured on
873#  multiple gif interfaces.
874device		gif
875device		gre
876options 	XBONEHACK
877
878#  The `faith' device captures packets sent to it and diverts them
879#  to the IPv4/IPv6 translation daemon.
880#  The `stf' device implements 6to4 encapsulation.
881device		faith
882device		stf
883
884# The pf packet filter consists of three devices:
885#  The `pf' device provides /dev/pf and the firewall code itself.
886#  The `pflog' device provides the pflog0 interface which logs packets.
887#  The `pfsync' device provides the pfsync0 interface used for
888#   synchronization of firewall state tables (over the net).
889device		pf
890device		pflog
891device		pfsync
892
893# Bridge interface.
894device		if_bridge
895
896# Common Address Redundancy Protocol. See carp(4) for more details.
897device		carp
898
899# IPsec interface.
900device		enc
901
902# Link aggregation interface.
903device		lagg
904
905#
906# Internet family options:
907#
908# MROUTING enables the kernel multicast packet forwarder, which works
909# with mrouted and XORP.
910#
911# IPFIREWALL enables support for IP firewall construction, in
912# conjunction with the `ipfw' program.  IPFIREWALL_VERBOSE sends
913# logged packets to the system logger.  IPFIREWALL_VERBOSE_LIMIT
914# limits the number of times a matching entry can be logged.
915#
916# WARNING:  IPFIREWALL defaults to a policy of "deny ip from any to any"
917# and if you do not add other rules during startup to allow access,
918# YOU WILL LOCK YOURSELF OUT.  It is suggested that you set firewall_type=open
919# in /etc/rc.conf when first enabling this feature, then refining the
920# firewall rules in /etc/rc.firewall after you've tested that the new kernel
921# feature works properly.
922#
923# IPFIREWALL_DEFAULT_TO_ACCEPT causes the default rule (at boot) to
924# allow everything.  Use with care, if a cracker can crash your
925# firewall machine, they can get to your protected machines.  However,
926# if you are using it as an as-needed filter for specific problems as
927# they arise, then this may be for you.  Changing the default to 'allow'
928# means that you won't get stuck if the kernel and /sbin/ipfw binary get
929# out of sync.
930#
931# IPDIVERT enables the divert IP sockets, used by ``ipfw divert''.  It
932# depends on IPFIREWALL if compiled into the kernel.
933#
934# IPFIREWALL_NAT adds support for in kernel nat in ipfw, and it requires
935# LIBALIAS.
936#
937# IPSTEALTH enables code to support stealth forwarding (i.e., forwarding
938# packets without touching the TTL).  This can be useful to hide firewalls
939# from traceroute and similar tools.
940#
941# PF_DEFAULT_TO_DROP causes the default pf(4) rule to deny everything.
942#
943# TCPDEBUG enables code which keeps traces of the TCP state machine
944# for sockets with the SO_DEBUG option set, which can then be examined
945# using the trpt(8) utility.
946#
947# RADIX_MPATH provides support for equal-cost multi-path routing.
948#
949options 	MROUTING		# Multicast routing
950options 	IPFIREWALL		#firewall
951options 	IPFIREWALL_VERBOSE	#enable logging to syslogd(8)
952options 	IPFIREWALL_VERBOSE_LIMIT=100	#limit verbosity
953options 	IPFIREWALL_DEFAULT_TO_ACCEPT	#allow everything by default
954options 	IPFIREWALL_NAT		#ipfw kernel nat support
955options 	IPDIVERT		#divert sockets
956options 	IPFILTER		#ipfilter support
957options 	IPFILTER_LOG		#ipfilter logging
958options 	IPFILTER_LOOKUP		#ipfilter pools
959options 	IPFILTER_DEFAULT_BLOCK	#block all packets by default
960options 	IPSTEALTH		#support for stealth forwarding
961options 	PF_DEFAULT_TO_DROP	#drop everything by default
962options 	TCPDEBUG
963options 	RADIX_MPATH
964
965# The MBUF_STRESS_TEST option enables options which create
966# various random failures / extreme cases related to mbuf
967# functions.  See mbuf(9) for a list of available test cases.
968# MBUF_PROFILING enables code to profile the mbuf chains
969# exiting the system (via participating interfaces) and
970# return a logarithmic histogram of monitored parameters
971# (e.g. packet size, wasted space, number of mbufs in chain).
972options 	MBUF_STRESS_TEST
973options 	MBUF_PROFILING
974
975# Statically link in accept filters
976options 	ACCEPT_FILTER_DATA
977options 	ACCEPT_FILTER_DNS
978options 	ACCEPT_FILTER_HTTP
979
980# TCP_SIGNATURE adds support for RFC 2385 (TCP-MD5) digests. These are
981# carried in TCP option 19. This option is commonly used to protect
982# TCP sessions (e.g. BGP) where IPSEC is not available nor desirable.
983# This is enabled on a per-socket basis using the TCP_MD5SIG socket option.
984# This requires the use of 'device crypto', 'options IPSEC'
985# or 'device cryptodev'.
986options 	TCP_SIGNATURE		#include support for RFC 2385
987
988# DUMMYNET enables the "dummynet" bandwidth limiter.  You need IPFIREWALL
989# as well.  See dummynet(4) and ipfw(8) for more info.  When you run
990# DUMMYNET it is advisable to also have at least "options HZ=1000" to achieve
991# a smooth scheduling of the traffic.
992options 	DUMMYNET
993
994#####################################################################
995# FILESYSTEM OPTIONS
996
997#
998# Only the root filesystem needs to be statically compiled or preloaded
999# as module; everything else will be automatically loaded at mount
1000# time.  Some people still prefer to statically compile other
1001# filesystems as well.
1002#
1003# NB: The UNION filesystem was known to be buggy in the past.  It is now
1004# being actively maintained, although there are still some issues being
1005# resolved.
1006#
1007
1008# One of these is mandatory:
1009options 	FFS			#Fast filesystem
1010options 	NFSCLIENT		#Network File System client
1011
1012# The rest are optional:
1013options 	CD9660			#ISO 9660 filesystem
1014options 	FDESCFS			#File descriptor filesystem
1015options 	FUSE			#FUSE support module
1016options 	MSDOSFS			#MS DOS File System (FAT, FAT32)
1017options 	NFSSERVER		#Network File System server
1018options 	NFSLOCKD		#Network Lock Manager
1019options 	NFSCL			#New Network Filesystem Client
1020options 	NFSD			#New Network Filesystem Server
1021options 	KGSSAPI			#Kernel GSSAPI implementation
1022
1023options 	NULLFS			#NULL filesystem
1024options 	PROCFS			#Process filesystem (requires PSEUDOFS)
1025options 	PSEUDOFS		#Pseudo-filesystem framework
1026options 	PSEUDOFS_TRACE		#Debugging support for PSEUDOFS
1027options 	SMBFS			#SMB/CIFS filesystem
1028options 	TMPFS			#Efficient memory filesystem
1029options 	UDF			#Universal Disk Format
1030options 	UNIONFS			#Union filesystem
1031# The xFS_ROOT options REQUIRE the associated ``options xFS''
1032options 	NFS_ROOT		#NFS usable as root device
1033
1034# Soft updates is a technique for improving filesystem speed and
1035# making abrupt shutdown less risky.
1036#
1037options 	SOFTUPDATES
1038
1039# Extended attributes allow additional data to be associated with files,
1040# and is used for ACLs, Capabilities, and MAC labels.
1041# See src/sys/ufs/ufs/README.extattr for more information.
1042options 	UFS_EXTATTR
1043options 	UFS_EXTATTR_AUTOSTART
1044
1045# Access Control List support for UFS filesystems.  The current ACL
1046# implementation requires extended attribute support, UFS_EXTATTR,
1047# for the underlying filesystem.
1048# See src/sys/ufs/ufs/README.acls for more information.
1049options 	UFS_ACL
1050
1051# Directory hashing improves the speed of operations on very large
1052# directories at the expense of some memory.
1053options 	UFS_DIRHASH
1054
1055# Gjournal-based UFS journaling support.
1056options 	UFS_GJOURNAL
1057
1058# Make space in the kernel for a root filesystem on a md device.
1059# Define to the number of kilobytes to reserve for the filesystem.
1060options 	MD_ROOT_SIZE=10
1061
1062# Make the md device a potential root device, either with preloaded
1063# images of type mfs_root or md_root.
1064options 	MD_ROOT
1065
1066# Disk quotas are supported when this option is enabled.
1067options 	QUOTA			#enable disk quotas
1068
1069# If you are running a machine just as a fileserver for PC and MAC
1070# users, using SAMBA, you may consider setting this option
1071# and keeping all those users' directories on a filesystem that is
1072# mounted with the suiddir option. This gives new files the same
1073# ownership as the directory (similar to group). It's a security hole
1074# if you let these users run programs, so confine it to file-servers
1075# (but it'll save you lots of headaches in those cases). Root owned
1076# directories are exempt and X bits are cleared. The suid bit must be
1077# set on the directory as well; see chmod(1). PC owners can't see/set
1078# ownerships so they keep getting their toes trodden on. This saves
1079# you all the support calls as the filesystem it's used on will act as
1080# they expect: "It's my dir so it must be my file".
1081#
1082options 	SUIDDIR
1083
1084# NFS options:
1085options 	NFS_MINATTRTIMO=3	# VREG attrib cache timeout in sec
1086options 	NFS_MAXATTRTIMO=60
1087options 	NFS_MINDIRATTRTIMO=30	# VDIR attrib cache timeout in sec
1088options 	NFS_MAXDIRATTRTIMO=60
1089options 	NFS_GATHERDELAY=10	# Default write gather delay (msec)
1090options 	NFS_WDELAYHASHSIZ=16	# and with this
1091options 	NFS_DEBUG		# Enable NFS Debugging
1092
1093#
1094# Add support for the EXT2FS filesystem of Linux fame.  Be a bit
1095# careful with this - the ext2fs code has a tendency to lag behind
1096# changes and not be exercised very much, so mounting read/write could
1097# be dangerous (and even mounting read only could result in panics.)
1098#
1099options 	EXT2FS
1100
1101#
1102# Add support for the ReiserFS filesystem (used in Linux). Currently,
1103# this is limited to read-only access.
1104#
1105options 	REISERFS
1106
1107# Use real implementations of the aio_* system calls.  There are numerous
1108# stability and security issues in the current aio code that make it
1109# unsuitable for inclusion on machines with untrusted local users.
1110options 	VFS_AIO
1111
1112# Cryptographically secure random number generator; /dev/random
1113device		random
1114
1115# The system memory devices; /dev/mem, /dev/kmem
1116device		mem
1117
1118# The kernel symbol table device; /dev/ksyms
1119device		ksyms
1120
1121# Optional character code conversion support with LIBICONV.
1122# Each option requires their base file system and LIBICONV.
1123options 	CD9660_ICONV
1124options 	MSDOSFS_ICONV
1125options 	UDF_ICONV
1126
1127
1128#####################################################################
1129# POSIX P1003.1B
1130
1131# Real time extensions added in the 1993 POSIX
1132# _KPOSIX_PRIORITY_SCHEDULING: Build in _POSIX_PRIORITY_SCHEDULING
1133
1134options 	_KPOSIX_PRIORITY_SCHEDULING
1135# p1003_1b_semaphores are very experimental,
1136# user should be ready to assist in debugging if problems arise.
1137options 	P1003_1B_SEMAPHORES
1138
1139# POSIX message queue
1140options 	P1003_1B_MQUEUE
1141
1142#####################################################################
1143# SECURITY POLICY PARAMETERS
1144
1145# Support for BSM audit
1146options 	AUDIT
1147
1148# Support for Mandatory Access Control (MAC):
1149options 	MAC
1150options 	MAC_BIBA
1151options 	MAC_BSDEXTENDED
1152options 	MAC_IFOFF
1153options 	MAC_LOMAC
1154options 	MAC_MLS
1155options 	MAC_NONE
1156options 	MAC_PARTITION
1157options 	MAC_PORTACL
1158options 	MAC_SEEOTHERUIDS
1159options 	MAC_STUB
1160options 	MAC_TEST
1161
1162# Support for Capsicum
1163options 	CAPABILITIES	# fine-grained rights on file descriptors
1164options 	CAPABILITY_MODE	# sandboxes with no global namespace access
1165
1166
1167#####################################################################
1168# CLOCK OPTIONS
1169
1170# The granularity of operation is controlled by the kernel option HZ whose
1171# default value (1000 on most architectures) means a granularity of 1ms
1172# (1s/HZ).  Historically, the default was 100, but finer granularity is
1173# required for DUMMYNET and other systems on modern hardware.  There are
1174# reasonable arguments that HZ should, in fact, be 100 still; consider,
1175# that reducing the granularity too much might cause excessive overhead in
1176# clock interrupt processing, potentially causing ticks to be missed and thus
1177# actually reducing the accuracy of operation.
1178
1179options 	HZ=100
1180
1181# Enable support for the kernel PLL to use an external PPS signal,
1182# under supervision of [x]ntpd(8)
1183# More info in ntpd documentation: http://www.eecis.udel.edu/~ntp
1184
1185options 	PPS_SYNC
1186
1187# Enable support for generic feed-forward clocks in the kernel.
1188# The feed-forward clock support is an alternative to the feedback oriented
1189# ntpd/system clock approach, and is to be used with a feed-forward
1190# synchronization algorithm such as the RADclock:
1191# More info here: http://www.synclab.org/radclock
1192
1193options 	FFCLOCK
1194
1195
1196#####################################################################
1197# SCSI DEVICES
1198
1199# SCSI DEVICE CONFIGURATION
1200
1201# The SCSI subsystem consists of the `base' SCSI code, a number of
1202# high-level SCSI device `type' drivers, and the low-level host-adapter
1203# device drivers.  The host adapters are listed in the ISA and PCI
1204# device configuration sections below.
1205#
1206# It is possible to wire down your SCSI devices so that a given bus,
1207# target, and LUN always come on line as the same device unit.  In
1208# earlier versions the unit numbers were assigned in the order that
1209# the devices were probed on the SCSI bus.  This means that if you
1210# removed a disk drive, you may have had to rewrite your /etc/fstab
1211# file, and also that you had to be careful when adding a new disk
1212# as it may have been probed earlier and moved your device configuration
1213# around.  (See also option GEOM_VOL for a different solution to this
1214# problem.)
1215
1216# This old behavior is maintained as the default behavior.  The unit
1217# assignment begins with the first non-wired down unit for a device
1218# type.  For example, if you wire a disk as "da3" then the first
1219# non-wired disk will be assigned da4.
1220
1221# The syntax for wiring down devices is:
1222
1223hint.scbus.0.at="ahc0"
1224hint.scbus.1.at="ahc1"
1225hint.scbus.1.bus="0"
1226hint.scbus.3.at="ahc2"
1227hint.scbus.3.bus="0"
1228hint.scbus.2.at="ahc2"
1229hint.scbus.2.bus="1"
1230hint.da.0.at="scbus0"
1231hint.da.0.target="0"
1232hint.da.0.unit="0"
1233hint.da.1.at="scbus3"
1234hint.da.1.target="1"
1235hint.da.2.at="scbus2"
1236hint.da.2.target="3"
1237hint.sa.1.at="scbus1"
1238hint.sa.1.target="6"
1239
1240# "units" (SCSI logical unit number) that are not specified are
1241# treated as if specified as LUN 0.
1242
1243# All SCSI devices allocate as many units as are required.
1244
1245# The ch driver drives SCSI Media Changer ("jukebox") devices.
1246#
1247# The da driver drives SCSI Direct Access ("disk") and Optical Media
1248# ("WORM") devices.
1249#
1250# The sa driver drives SCSI Sequential Access ("tape") devices.
1251#
1252# The cd driver drives SCSI Read Only Direct Access ("cd") devices.
1253#
1254# The ses driver drives SCSI Environment Services ("ses") and
1255# SAF-TE ("SCSI Accessible Fault-Tolerant Enclosure") devices.
1256#
1257# The pt driver drives SCSI Processor devices.
1258#
1259# The sg driver provides a passthrough API that is compatible with the
1260# Linux SG driver.  It will work in conjunction with the COMPAT_LINUX
1261# option to run linux SG apps.  It can also stand on its own and provide
1262# source level API compatibility for porting apps to FreeBSD.
1263#
1264# Target Mode support is provided here but also requires that a SIM
1265# (SCSI Host Adapter Driver) provide support as well.
1266#
1267# The targ driver provides target mode support as a Processor type device.
1268# It exists to give the minimal context necessary to respond to Inquiry
1269# commands. There is a sample user application that shows how the rest
1270# of the command support might be done in /usr/share/examples/scsi_target.
1271#
1272# The targbh driver provides target mode support and exists to respond
1273# to incoming commands that do not otherwise have a logical unit assigned
1274# to them.
1275#
1276# The pass driver provides a passthrough API to access the CAM subsystem.
1277
1278device		scbus		#base SCSI code
1279device		ch		#SCSI media changers
1280device		da		#SCSI direct access devices (aka disks)
1281device		sa		#SCSI tapes
1282device		cd		#SCSI CD-ROMs
1283device		ses		#Enclosure Services (SES and SAF-TE)
1284device		pt		#SCSI processor
1285device		targ		#SCSI Target Mode Code
1286device		targbh		#SCSI Target Mode Blackhole Device
1287device		pass		#CAM passthrough driver
1288device		sg		#Linux SCSI passthrough
1289device		ctl		#CAM Target Layer
1290
1291# CAM OPTIONS:
1292# debugging options:
1293# CAMDEBUG		Compile in all possible debugging.
1294# CAM_DEBUG_COMPILE	Debug levels to compile in.
1295# CAM_DEBUG_FLAGS	Debug levels to enable on boot.
1296# CAM_DEBUG_BUS		Limit debugging to the given bus.
1297# CAM_DEBUG_TARGET	Limit debugging to the given target.
1298# CAM_DEBUG_LUN		Limit debugging to the given lun.
1299# CAM_DEBUG_DELAY	Delay in us after printing each debug line.
1300#
1301# CAM_MAX_HIGHPOWER: Maximum number of concurrent high power (start unit) cmds
1302# SCSI_NO_SENSE_STRINGS: When defined disables sense descriptions
1303# SCSI_NO_OP_STRINGS: When defined disables opcode descriptions
1304# SCSI_DELAY: The number of MILLISECONDS to freeze the SIM (scsi adapter)
1305#             queue after a bus reset, and the number of milliseconds to
1306#             freeze the device queue after a bus device reset.  This
1307#             can be changed at boot and runtime with the
1308#             kern.cam.scsi_delay tunable/sysctl.
1309options 	CAMDEBUG
1310options 	CAM_DEBUG_COMPILE=-1
1311options 	CAM_DEBUG_FLAGS=(CAM_DEBUG_INFO|CAM_DEBUG_PROBE|CAM_DEBUG_PERIPH)
1312options 	CAM_DEBUG_BUS=-1
1313options 	CAM_DEBUG_TARGET=-1
1314options 	CAM_DEBUG_LUN=-1
1315options 	CAM_DEBUG_DELAY=1
1316options 	CAM_MAX_HIGHPOWER=4
1317options 	SCSI_NO_SENSE_STRINGS
1318options 	SCSI_NO_OP_STRINGS
1319options 	SCSI_DELAY=5000	# Be pessimistic about Joe SCSI device
1320
1321# Options for the CAM CDROM driver:
1322# CHANGER_MIN_BUSY_SECONDS: Guaranteed minimum time quantum for a changer LUN
1323# CHANGER_MAX_BUSY_SECONDS: Maximum time quantum per changer LUN, only
1324#                           enforced if there is I/O waiting for another LUN
1325# The compiled in defaults for these variables are 2 and 10 seconds,
1326# respectively.
1327#
1328# These can also be changed on the fly with the following sysctl variables:
1329# kern.cam.cd.changer.min_busy_seconds
1330# kern.cam.cd.changer.max_busy_seconds
1331#
1332options 	CHANGER_MIN_BUSY_SECONDS=2
1333options 	CHANGER_MAX_BUSY_SECONDS=10
1334
1335# Options for the CAM sequential access driver:
1336# SA_IO_TIMEOUT: Timeout for read/write/wfm  operations, in minutes
1337# SA_SPACE_TIMEOUT: Timeout for space operations, in minutes
1338# SA_REWIND_TIMEOUT: Timeout for rewind operations, in minutes
1339# SA_ERASE_TIMEOUT: Timeout for erase operations, in minutes
1340# SA_1FM_AT_EOD: Default to model which only has a default one filemark at EOT.
1341options 	SA_IO_TIMEOUT=4
1342options 	SA_SPACE_TIMEOUT=60
1343options 	SA_REWIND_TIMEOUT=(2*60)
1344options 	SA_ERASE_TIMEOUT=(4*60)
1345options 	SA_1FM_AT_EOD
1346
1347# Optional timeout for the CAM processor target (pt) device
1348# This is specified in seconds.  The default is 60 seconds.
1349options 	SCSI_PT_DEFAULT_TIMEOUT=60
1350
1351# Optional enable of doing SES passthrough on other devices (e.g., disks)
1352#
1353# Normally disabled because a lot of newer SCSI disks report themselves
1354# as having SES capabilities, but this can then clot up attempts to build
1355# a topology with the SES device that's on the box these drives are in....
1356options 	SES_ENABLE_PASSTHROUGH
1357
1358
1359#####################################################################
1360# MISCELLANEOUS DEVICES AND OPTIONS
1361
1362device		pty		#BSD-style compatibility pseudo ttys
1363device		nmdm		#back-to-back tty devices
1364device		md		#Memory/malloc disk
1365device		snp		#Snoop device - to look at pty/vty/etc..
1366device		ccd		#Concatenated disk driver
1367device		firmware	#firmware(9) support
1368
1369# Kernel side iconv library
1370options 	LIBICONV
1371
1372# Size of the kernel message buffer.  Should be N * pagesize.
1373options 	MSGBUF_SIZE=40960
1374
1375
1376#####################################################################
1377# HARDWARE DEVICE CONFIGURATION
1378
1379# For ISA the required hints are listed.
1380# EISA, MCA, PCI, CardBus, SD/MMC and pccard are self identifying buses, so
1381# no hints are needed.
1382
1383#
1384# Mandatory devices:
1385#
1386
1387# These options are valid for other keyboard drivers as well.
1388options 	KBD_DISABLE_KEYMAP_LOAD	# refuse to load a keymap
1389options 	KBD_INSTALL_CDEV	# install a CDEV entry in /dev
1390
1391options 	FB_DEBUG		# Frame buffer debugging
1392
1393device		splash			# Splash screen and screen saver support
1394
1395# Various screen savers.
1396device		blank_saver
1397device		daemon_saver
1398device		dragon_saver
1399device		fade_saver
1400device		fire_saver
1401device		green_saver
1402device		logo_saver
1403device		rain_saver
1404device		snake_saver
1405device		star_saver
1406device		warp_saver
1407
1408# The syscons console driver (SCO color console compatible).
1409device		sc
1410hint.sc.0.at="isa"
1411options 	MAXCONS=16		# number of virtual consoles
1412options 	SC_ALT_MOUSE_IMAGE	# simplified mouse cursor in text mode
1413options 	SC_DFLT_FONT		# compile font in
1414makeoptions	SC_DFLT_FONT=cp850
1415options 	SC_DISABLE_KDBKEY	# disable `debug' key
1416options 	SC_DISABLE_REBOOT	# disable reboot key sequence
1417options 	SC_HISTORY_SIZE=200	# number of history buffer lines
1418options 	SC_MOUSE_CHAR=0x3	# char code for text mode mouse cursor
1419options 	SC_PIXEL_MODE		# add support for the raster text mode
1420
1421# The following options will let you change the default colors of syscons.
1422options 	SC_NORM_ATTR=(FG_GREEN|BG_BLACK)
1423options 	SC_NORM_REV_ATTR=(FG_YELLOW|BG_GREEN)
1424options 	SC_KERNEL_CONS_ATTR=(FG_RED|BG_BLACK)
1425options 	SC_KERNEL_CONS_REV_ATTR=(FG_BLACK|BG_RED)
1426
1427# The following options will let you change the default behavior of
1428# cut-n-paste feature
1429options 	SC_CUT_SPACES2TABS	# convert leading spaces into tabs
1430options 	SC_CUT_SEPCHARS=\"x09\"	# set of characters that delimit words
1431					# (default is single space - \"x20\")
1432
1433# If you have a two button mouse, you may want to add the following option
1434# to use the right button of the mouse to paste text.
1435options 	SC_TWOBUTTON_MOUSE
1436
1437# You can selectively disable features in syscons.
1438options 	SC_NO_CUTPASTE
1439options 	SC_NO_FONT_LOADING
1440options 	SC_NO_HISTORY
1441options 	SC_NO_MODE_CHANGE
1442options 	SC_NO_SYSMOUSE
1443options 	SC_NO_SUSPEND_VTYSWITCH
1444
1445# `flags' for sc
1446#	0x80	Put the video card in the VESA 800x600 dots, 16 color mode
1447#	0x100	Probe for a keyboard device periodically if one is not present
1448
1449# Enable experimental features of the syscons terminal emulator (teken).
1450options 	TEKEN_CONS25		# cons25-style terminal emulation
1451options 	TEKEN_UTF8		# UTF-8 output handling
1452
1453#
1454# Optional devices:
1455#
1456
1457#
1458# SCSI host adapters:
1459#
1460# adv: All Narrow SCSI bus AdvanSys controllers.
1461# adw: Second Generation AdvanSys controllers including the ADV940UW.
1462# aha: Adaptec 154x/1535/1640
1463# ahb: Adaptec 174x EISA controllers
1464# ahc: Adaptec 274x/284x/2910/293x/294x/394x/3950x/3960x/398X/4944/
1465#      19160x/29160x, aic7770/aic78xx
1466# ahd: Adaptec 29320/39320 Controllers.
1467# aic: Adaptec 6260/6360, APA-1460 (PC Card), NEC PC9801-100 (C-BUS)
1468# bt:  Most Buslogic controllers: including BT-445, BT-54x, BT-64x, BT-74x,
1469#      BT-75x, BT-946, BT-948, BT-956, BT-958, SDC3211B, SDC3211F, SDC3222F
1470# esp: Emulex ESP, NCR 53C9x and QLogic FAS families based controllers
1471#      including the AMD Am53C974 (found on devices such as the Tekram
1472#      DC-390(T)) and the Sun ESP and FAS families of controllers
1473# isp: Qlogic ISP 1020, 1040 and 1040B PCI SCSI host adapters,
1474#      ISP 1240 Dual Ultra SCSI, ISP 1080 and 1280 (Dual) Ultra2,
1475#      ISP 12160 Ultra3 SCSI,
1476#      Qlogic ISP 2100 and ISP 2200 1Gb Fibre Channel host adapters.
1477#      Qlogic ISP 2300 and ISP 2312 2Gb Fibre Channel host adapters.
1478#      Qlogic ISP 2322 and ISP 6322 2Gb Fibre Channel host adapters.
1479# ispfw: Firmware module for Qlogic host adapters
1480# mpt: LSI-Logic MPT/Fusion 53c1020 or 53c1030 Ultra4
1481#      or FC9x9 Fibre Channel host adapters.
1482# ncr: NCR 53C810, 53C825 self-contained SCSI host adapters.
1483# sym: Symbios/Logic 53C8XX family of PCI-SCSI I/O processors:
1484#      53C810, 53C810A, 53C815, 53C825,  53C825A, 53C860, 53C875,
1485#      53C876, 53C885,  53C895, 53C895A, 53C896,  53C897, 53C1510D,
1486#      53C1010-33, 53C1010-66.
1487# trm: Tekram DC395U/UW/F DC315U adapters.
1488# wds: WD7000
1489
1490#
1491# Note that the order is important in order for Buslogic ISA/EISA cards to be
1492# probed correctly.
1493#
1494device		bt
1495hint.bt.0.at="isa"
1496hint.bt.0.port="0x330"
1497device		adv
1498hint.adv.0.at="isa"
1499device		adw
1500device		aha
1501hint.aha.0.at="isa"
1502device		aic
1503hint.aic.0.at="isa"
1504device		ahb
1505device		ahc
1506device		ahd
1507device		esp
1508device		iscsi_initiator
1509device		isp
1510hint.isp.0.disable="1"
1511hint.isp.0.role="3"
1512hint.isp.0.prefer_iomap="1"
1513hint.isp.0.prefer_memmap="1"
1514hint.isp.0.fwload_disable="1"
1515hint.isp.0.ignore_nvram="1"
1516hint.isp.0.fullduplex="1"
1517hint.isp.0.topology="lport"
1518hint.isp.0.topology="nport"
1519hint.isp.0.topology="lport-only"
1520hint.isp.0.topology="nport-only"
1521# we can't get u_int64_t types, nor can we get strings if it's got
1522# a leading 0x, hence this silly dodge.
1523hint.isp.0.portwnn="w50000000aaaa0000"
1524hint.isp.0.nodewnn="w50000000aaaa0001"
1525device		ispfw
1526device		mpt
1527device		ncr
1528device		sym
1529device		trm
1530device		wds
1531hint.wds.0.at="isa"
1532hint.wds.0.port="0x350"
1533hint.wds.0.irq="11"
1534hint.wds.0.drq="6"
1535
1536# The aic7xxx driver will attempt to use memory mapped I/O for all PCI
1537# controllers that have it configured only if this option is set. Unfortunately,
1538# this doesn't work on some motherboards, which prevents it from being the
1539# default.
1540options 	AHC_ALLOW_MEMIO
1541
1542# Dump the contents of the ahc controller configuration PROM.
1543options 	AHC_DUMP_EEPROM
1544
1545# Bitmap of units to enable targetmode operations.
1546options 	AHC_TMODE_ENABLE
1547
1548# Compile in Aic7xxx Debugging code.
1549options 	AHC_DEBUG
1550
1551# Aic7xxx driver debugging options. See sys/dev/aic7xxx/aic7xxx.h
1552options 	AHC_DEBUG_OPTS
1553
1554# Print register bitfields in debug output.  Adds ~128k to driver
1555# See ahc(4).
1556options 	AHC_REG_PRETTY_PRINT
1557
1558# Compile in aic79xx debugging code.
1559options 	AHD_DEBUG
1560
1561# Aic79xx driver debugging options.  Adds ~215k to driver.  See ahd(4).
1562options 	AHD_DEBUG_OPTS=0xFFFFFFFF
1563
1564# Print human-readable register definitions when debugging
1565options 	AHD_REG_PRETTY_PRINT
1566
1567# Bitmap of units to enable targetmode operations.
1568options 	AHD_TMODE_ENABLE
1569
1570# The adw driver will attempt to use memory mapped I/O for all PCI
1571# controllers that have it configured only if this option is set.
1572options 	ADW_ALLOW_MEMIO
1573
1574# Options used in dev/iscsi (Software iSCSI stack)
1575#
1576options 	ISCSI_INITIATOR_DEBUG=9
1577
1578# Options used in dev/isp/ (Qlogic SCSI/FC driver).
1579#
1580#	ISP_TARGET_MODE		-	enable target mode operation
1581#
1582options 	ISP_TARGET_MODE=1
1583#
1584#	ISP_DEFAULT_ROLES	-	default role
1585#		none=0
1586#		target=1
1587#		initiator=2
1588#		both=3			(not supported currently)
1589#
1590#	ISP_INTERNAL_TARGET		(trivial internal disk target, for testing)
1591#
1592options 	ISP_DEFAULT_ROLES=0
1593
1594# Options used in dev/sym/ (Symbios SCSI driver).
1595#options 	SYM_SETUP_LP_PROBE_MAP	#-Low Priority Probe Map (bits)
1596					# Allows the ncr to take precedence
1597					# 1 (1<<0) -> 810a, 860
1598					# 2 (1<<1) -> 825a, 875, 885, 895
1599					# 4 (1<<2) -> 895a, 896, 1510d
1600#options 	SYM_SETUP_SCSI_DIFF	#-HVD support for 825a, 875, 885
1601					# disabled:0 (default), enabled:1
1602#options 	SYM_SETUP_PCI_PARITY	#-PCI parity checking
1603					# disabled:0, enabled:1 (default)
1604#options 	SYM_SETUP_MAX_LUN	#-Number of LUNs supported
1605					# default:8, range:[1..64]
1606
1607# The 'dpt' driver provides support for old DPT controllers (http://www.dpt.com/).
1608# These have hardware RAID-{0,1,5} support, and do multi-initiator I/O.
1609# The DPT controllers are commonly re-licensed under other brand-names -
1610# some controllers by Olivetti, Dec, HP, AT&T, SNI, AST, Alphatronic, NEC and
1611# Compaq are actually DPT controllers.
1612#
1613# See src/sys/dev/dpt for debugging and other subtle options.
1614#  DPT_MEASURE_PERFORMANCE  Enables a set of (semi)invasive metrics. Various
1615#                           instruments are enabled.  The tools in
1616#                           /usr/sbin/dpt_* assume these to be enabled.
1617#  DPT_DEBUG_xxxx           These are controllable from sys/dev/dpt/dpt.h
1618#  DPT_RESET_HBA            Make "reset" actually reset the controller
1619#                           instead of fudging it.  Only enable this if you
1620#			    are 100% certain you need it.
1621
1622device		dpt
1623
1624# DPT options
1625#!CAM# options 	DPT_MEASURE_PERFORMANCE
1626options 	DPT_RESET_HBA
1627
1628#
1629# Compaq "CISS" RAID controllers (SmartRAID 5* series)
1630# These controllers have a SCSI-like interface, and require the
1631# CAM infrastructure.
1632#
1633device		ciss
1634
1635#
1636# Intel Integrated RAID controllers.
1637# This driver was developed and is maintained by Intel.  Contacts
1638# at Intel for this driver are
1639# "Kannanthanam, Boji T" <boji.t.kannanthanam@intel.com> and
1640# "Leubner, Achim" <achim.leubner@intel.com>.
1641#
1642device		iir
1643
1644#
1645# Mylex AcceleRAID and eXtremeRAID controllers with v6 and later
1646# firmware.  These controllers have a SCSI-like interface, and require
1647# the CAM infrastructure.
1648#
1649device		mly
1650
1651#
1652# Compaq Smart RAID, Mylex DAC960 and AMI MegaRAID controllers.  Only
1653# one entry is needed; the code will find and configure all supported
1654# controllers.
1655#
1656device		ida		# Compaq Smart RAID
1657device		mlx		# Mylex DAC960
1658device		amr		# AMI MegaRAID
1659device		amrp		# SCSI Passthrough interface (optional, CAM req.)
1660device		mfi		# LSI MegaRAID SAS
1661device		mfip		# LSI MegaRAID SAS passthrough, requires CAM
1662options 	MFI_DEBUG
1663
1664#
1665# 3ware ATA RAID
1666#
1667device		twe		# 3ware ATA RAID
1668
1669#
1670# Serial ATA host controllers:
1671#
1672# ahci: Advanced Host Controller Interface (AHCI) compatible
1673# mvs:  Marvell 88SX50XX/88SX60XX/88SX70XX/SoC controllers
1674# siis: SiliconImage SiI3124/SiI3132/SiI3531 controllers
1675#
1676# These drivers are part of cam(4) subsystem. They supersede less featured
1677# ata(4) subsystem drivers, supporting same hardware.
1678
1679device		ahci
1680device		mvs
1681device		siis
1682
1683#
1684# The 'ATA' driver supports all legacy ATA/ATAPI controllers, including
1685# PC Card devices. You only need one "device ata" for it to find all
1686# PCI and PC Card ATA/ATAPI devices on modern machines.
1687# Alternatively, individual bus and chipset drivers may be chosen by using
1688# the 'atacore' driver then selecting the drivers on a per vendor basis.
1689# For example to build a system which only supports a VIA chipset,
1690# omit 'ata' and include the 'atacore', 'atapci' and 'atavia' drivers.
1691device		ata
1692
1693# Modular ATA
1694#device		atacore		# Core ATA functionality
1695#device		atacard		# CARDBUS support
1696#device		atabus		# PC98 cbus support
1697#device		ataisa		# ISA bus support
1698#device		atapci		# PCI bus support; only generic chipset support
1699
1700# PCI ATA chipsets
1701#device		ataahci		# AHCI SATA
1702#device		ataacard	# ACARD
1703#device		ataacerlabs	# Acer Labs Inc. (ALI)
1704#device		ataadaptec	# Adaptec
1705#device		ataamd		# American Micro Devices (AMD)
1706#device		ataati		# ATI
1707#device		atacenatek	# Cenatek
1708#device		atacypress	# Cypress
1709#device		atacyrix	# Cyrix
1710#device		atahighpoint	# HighPoint
1711#device		ataintel	# Intel
1712#device		ataite		# Integrated Technology Inc. (ITE)
1713#device		atajmicron	# JMicron
1714#device		atamarvell	# Marvell
1715#device		atamicron	# Micron
1716#device		atanational	# National
1717#device		atanetcell	# NetCell
1718#device		atanvidia	# nVidia
1719#device		atapromise	# Promise
1720#device		ataserverworks	# ServerWorks
1721#device		atasiliconimage	# Silicon Image Inc. (SiI) (formerly CMD)
1722#device		atasis		# Silicon Integrated Systems Corp.(SiS)
1723#device		atavia		# VIA Technologies Inc.
1724
1725#
1726# For older non-PCI, non-PnPBIOS systems, these are the hints lines to add:
1727hint.ata.0.at="isa"
1728hint.ata.0.port="0x1f0"
1729hint.ata.0.irq="14"
1730hint.ata.1.at="isa"
1731hint.ata.1.port="0x170"
1732hint.ata.1.irq="15"
1733
1734#
1735# The following options are valid on the ATA driver:
1736#
1737# ATA_STATIC_ID:	controller numbering is static ie depends on location
1738#			else the device numbers are dynamically allocated.
1739# ATA_REQUEST_TIMEOUT:	the number of seconds to wait for an ATA request
1740#			before timing out.
1741
1742options 	ATA_STATIC_ID
1743#options 	ATA_REQUEST_TIMEOUT=10
1744
1745#
1746# Standard floppy disk controllers and floppy tapes, supports
1747# the Y-E DATA External FDD (PC Card)
1748#
1749device		fdc
1750hint.fdc.0.at="isa"
1751hint.fdc.0.port="0x3F0"
1752hint.fdc.0.irq="6"
1753hint.fdc.0.drq="2"
1754#
1755# FDC_DEBUG enables floppy debugging.  Since the debug output is huge, you
1756# gotta turn it actually on by setting the variable fd_debug with DDB,
1757# however.
1758options 	FDC_DEBUG
1759#
1760# Activate this line if you happen to have an Insight floppy tape.
1761# Probing them proved to be dangerous for people with floppy disks only,
1762# so it's "hidden" behind a flag:
1763#hint.fdc.0.flags="1"
1764
1765# Specify floppy devices
1766hint.fd.0.at="fdc0"
1767hint.fd.0.drive="0"
1768hint.fd.1.at="fdc0"
1769hint.fd.1.drive="1"
1770
1771#
1772# uart: newbusified driver for serial interfaces.  It consolidates the sio(4),
1773#	sab(4) and zs(4) drivers.
1774#
1775device		uart
1776
1777# Options for uart(4)
1778options 	UART_PPS_ON_CTS		# Do time pulse capturing using CTS
1779					# instead of DCD.
1780options 	UART_POLL_FREQ		# Set polling rate, used when hw has
1781					# no interrupt support (50 Hz default).
1782
1783# The following hint should only be used for pure ISA devices.  It is not
1784# needed otherwise.  Use of hints is strongly discouraged.
1785hint.uart.0.at="isa"
1786
1787# The following 3 hints are used when the UART is a system device (i.e., a
1788# console or debug port), but only on platforms that don't have any other
1789# means to pass the information to the kernel.  The unit number of the hint
1790# is only used to bundle the hints together.  There is no relation to the
1791# unit number of the probed UART.
1792hint.uart.0.port="0x3f8"
1793hint.uart.0.flags="0x10"
1794hint.uart.0.baud="115200"
1795
1796# `flags' for serial drivers that support consoles like sio(4) and uart(4):
1797#	0x10	enable console support for this unit.  Other console flags
1798#		(if applicable) are ignored unless this is set.  Enabling
1799#		console support does not make the unit the preferred console.
1800#		Boot with -h or set boot_serial=YES in the loader.  For sio(4)
1801#		specifically, the 0x20 flag can also be set (see above).
1802#		Currently, at most one unit can have console support; the
1803#		first one (in config file order) with this flag set is
1804#		preferred.  Setting this flag for sio0 gives the old behavior.
1805#	0x80	use this port for serial line gdb support in ddb.  Also known
1806#		as debug port.
1807#
1808
1809# Options for serial drivers that support consoles:
1810options 	BREAK_TO_DEBUGGER	# A BREAK on a serial console goes to
1811					# ddb, if available.
1812
1813# Solaris implements a new BREAK which is initiated by a character
1814# sequence CR ~ ^b which is similar to a familiar pattern used on
1815# Sun servers by the Remote Console.  There are FreeBSD extensions:
1816# CR ~ ^p requests force panic and CR ~ ^r requests a clean reboot.
1817options 	ALT_BREAK_TO_DEBUGGER
1818
1819# Serial Communications Controller
1820# Supports the Siemens SAB 82532 and Zilog Z8530 multi-channel
1821# communications controllers.
1822device		scc
1823
1824# PCI Universal Communications driver
1825# Supports various multi port PCI I/O cards.
1826device		puc
1827
1828#
1829# Network interfaces:
1830#
1831# MII bus support is required for many PCI Ethernet NICs,
1832# namely those which use MII-compliant transceivers or implement
1833# transceiver control interfaces that operate like an MII.  Adding
1834# "device miibus" to the kernel config pulls in support for the generic
1835# miibus API, the common support for for bit-bang'ing the MII and all
1836# of the PHY drivers, including a generic one for PHYs that aren't
1837# specifically handled by an individual driver.  Support for specific
1838# PHYs may be built by adding "device mii", "device mii_bitbang" if
1839# needed by the NIC driver and then adding the appropriate PHY driver.
1840device  	mii		# Minimal MII support
1841device  	mii_bitbang	# Common module for bit-bang'ing the MII
1842device  	miibus		# MII support w/ bit-bang'ing and all PHYs
1843
1844device  	acphy		# Altima Communications AC101
1845device  	amphy		# AMD AM79c873 / Davicom DM910{1,2}
1846device  	atphy		# Attansic/Atheros F1
1847device  	axphy		# Asix Semiconductor AX88x9x
1848device  	bmtphy		# Broadcom BCM5201/BCM5202 and 3Com 3c905C
1849device  	brgphy		# Broadcom BCM54xx/57xx 1000baseTX
1850device  	ciphy		# Cicada/Vitesse CS/VSC8xxx
1851device  	e1000phy	# Marvell 88E1000 1000/100/10-BT
1852device  	gentbi		# Generic 10-bit 1000BASE-{LX,SX} fiber ifaces
1853device  	icsphy		# ICS ICS1889-1893
1854device  	ip1000phy	# IC Plus IP1000A/IP1001
1855device  	jmphy		# JMicron JMP211/JMP202
1856device  	lxtphy		# Level One LXT-970
1857device  	mlphy		# Micro Linear 6692
1858device  	nsgphy		# NatSemi DP8361/DP83865/DP83891
1859device  	nsphy		# NatSemi DP83840A
1860device  	nsphyter	# NatSemi DP83843/DP83815
1861device  	pnaphy		# HomePNA
1862device  	qsphy		# Quality Semiconductor QS6612
1863device  	rdcphy		# RDC Semiconductor R6040
1864device  	rgephy		# RealTek 8169S/8110S/8211B/8211C
1865device  	rlphy		# RealTek 8139
1866device  	rlswitch	# RealTek 8305
1867device  	smcphy		# SMSC LAN91C111
1868device  	tdkphy		# TDK 89Q2120
1869device  	tlphy		# Texas Instruments ThunderLAN
1870device  	truephy		# LSI TruePHY
1871device		xmphy		# XaQti XMAC II
1872
1873# an:   Aironet 4500/4800 802.11 wireless adapters. Supports the PCMCIA,
1874#       PCI and ISA varieties.
1875# ae:   Support for gigabit ethernet adapters based on the Attansic/Atheros
1876#       L2 PCI-Express FastEthernet controllers.
1877# age:  Support for gigabit ethernet adapters based on the Attansic/Atheros
1878#       L1 PCI express gigabit ethernet controllers.
1879# alc:  Support for Atheros AR8131/AR8132 PCIe ethernet controllers.
1880# ale:  Support for Atheros AR8121/AR8113/AR8114 PCIe ethernet controllers.
1881# ath:  Atheros a/b/g WiFi adapters (requires ath_hal and wlan)
1882# bce:	Broadcom NetXtreme II (BCM5706/BCM5708) PCI/PCIe Gigabit Ethernet
1883#       adapters.
1884# bfe:	Broadcom BCM4401 Ethernet adapter.
1885# bge:	Support for gigabit ethernet adapters based on the Broadcom
1886#	BCM570x family of controllers, including the 3Com 3c996-T,
1887#	the Netgear GA302T, the SysKonnect SK-9D21 and SK-9D41, and
1888#	the embedded gigE NICs on Dell PowerEdge 2550 servers.
1889# bxe:	Broadcom NetXtreme II (BCM5771X/BCM578XX) PCIe 10Gb Ethernet
1890#       adapters.
1891# bwi:	Broadcom BCM430* and BCM431* family of wireless adapters.
1892# bwn:	Broadcom BCM43xx family of wireless adapters.
1893# cas:	Sun Cassini/Cassini+ and National Semiconductor DP83065 Saturn
1894# cm:	Arcnet SMC COM90c26 / SMC COM90c56
1895#	(and SMC COM90c66 in '56 compatibility mode) adapters.
1896# cxgbe: Support for PCI express 10Gb/1Gb adapters based on the Chelsio T4
1897#       (Terminator 4) ASIC.
1898# dc:   Support for PCI fast ethernet adapters based on the DEC/Intel 21143
1899#       and various workalikes including:
1900#       the ADMtek AL981 Comet and AN985 Centaur, the ASIX Electronics
1901#       AX88140A and AX88141, the Davicom DM9100 and DM9102, the Lite-On
1902#       82c168 and 82c169 PNIC, the Lite-On/Macronix LC82C115 PNIC II
1903#       and the Macronix 98713/98713A/98715/98715A/98725 PMAC. This driver
1904#       replaces the old al, ax, dm, pn and mx drivers.  List of brands:
1905#       Digital DE500-BA, Kingston KNE100TX, D-Link DFE-570TX, SOHOware SFA110,
1906#       SVEC PN102-TX, CNet Pro110B, 120A, and 120B, Compex RL100-TX,
1907#       LinkSys LNE100TX, LNE100TX V2.0, Jaton XpressNet, Alfa Inc GFC2204,
1908#       KNE110TX.
1909# de:   Digital Equipment DC21040
1910# em:   Intel Pro/1000 Gigabit Ethernet 82542, 82543, 82544 based adapters.
1911# igb:  Intel Pro/1000 PCI Express Gigabit Ethernet: 82575 and later adapters.
1912# ep:   3Com 3C509, 3C529, 3C556, 3C562D, 3C563D, 3C572, 3C574X, 3C579, 3C589
1913#       and PC Card devices using these chipsets.
1914# ex:   Intel EtherExpress Pro/10 and other i82595-based adapters,
1915#       Olicom Ethernet PC Card devices.
1916# fe:   Fujitsu MB86960A/MB86965A Ethernet
1917# fea:  DEC DEFEA EISA FDDI adapter
1918# fpa:  Support for the Digital DEFPA PCI FDDI. `device fddi' is also needed.
1919# fxp:  Intel EtherExpress Pro/100B
1920#	(hint of prefer_iomap can be done to prefer I/O instead of Mem mapping)
1921# gem:  Apple GMAC/Sun ERI/Sun GEM
1922# hme:  Sun HME (Happy Meal Ethernet)
1923# jme:  JMicron JMC260 Fast Ethernet/JMC250 Gigabit Ethernet based adapters.
1924# le:   AMD Am7900 LANCE and Am79C9xx PCnet
1925# lge:	Support for PCI gigabit ethernet adapters based on the Level 1
1926#	LXT1001 NetCellerator chipset. This includes the D-Link DGE-500SX,
1927#	SMC TigerCard 1000 (SMC9462SX), and some Addtron cards.
1928# malo: Marvell Libertas wireless NICs.
1929# mwl:  Marvell 88W8363 802.11n wireless NICs.
1930#	Requires the mwl firmware module
1931# mwlfw: Marvell 88W8363 firmware
1932# msk:	Support for gigabit ethernet adapters based on the Marvell/SysKonnect
1933#	Yukon II Gigabit controllers, including 88E8021, 88E8022, 88E8061,
1934#	88E8062, 88E8035, 88E8036, 88E8038, 88E8050, 88E8052, 88E8053,
1935#	88E8055, 88E8056 and D-Link 560T/550SX.
1936# lmc:	Support for the LMC/SBE wide-area network interface cards.
1937# my:	Myson Fast Ethernet (MTD80X, MTD89X)
1938# nge:	Support for PCI gigabit ethernet adapters based on the National
1939#	Semiconductor DP83820 and DP83821 chipset. This includes the
1940#	SMC EZ Card 1000 (SMC9462TX), D-Link DGE-500T, Asante FriendlyNet
1941#	GigaNIX 1000TA and 1000TPC, the Addtron AEG320T, the Surecom
1942#	EP-320G-TX and the Netgear GA622T.
1943# oce:	Emulex 10 Gbit adapters (OneConnect Ethernet)
1944# pcn:	Support for PCI fast ethernet adapters based on the AMD Am79c97x
1945#	PCnet-FAST, PCnet-FAST+, PCnet-FAST III, PCnet-PRO and PCnet-Home
1946#	chipsets. These can also be handled by the le(4) driver if the
1947#	pcn(4) driver is left out of the kernel. The le(4) driver does not
1948#	support the additional features like the MII bus and burst mode of
1949#	the PCnet-FAST and greater chipsets though.
1950# ral:	Ralink Technology IEEE 802.11 wireless adapter
1951# re:   RealTek 8139C+/8169/816xS/811xS/8101E PCI/PCIe Ethernet adapter
1952# rl:   Support for PCI fast ethernet adapters based on the RealTek 8129/8139
1953#       chipset.  Note that the RealTek driver defaults to using programmed
1954#       I/O to do register accesses because memory mapped mode seems to cause
1955#       severe lockups on SMP hardware.  This driver also supports the
1956#       Accton EN1207D `Cheetah' adapter, which uses a chip called
1957#       the MPX 5030/5038, which is either a RealTek in disguise or a
1958#       RealTek workalike.  Note that the D-Link DFE-530TX+ uses the RealTek
1959#       chipset and is supported by this driver, not the 'vr' driver.
1960# sf:   Support for Adaptec Duralink PCI fast ethernet adapters based on the
1961#       Adaptec AIC-6915 "starfire" controller.
1962#       This includes dual and quad port cards, as well as one 100baseFX card.
1963#       Most of these are 64-bit PCI devices, except for one single port
1964#       card which is 32-bit.
1965# sge:  Silicon Integrated Systems SiS190/191 Fast/Gigabit Ethernet adapter
1966# sis:  Support for NICs based on the Silicon Integrated Systems SiS 900,
1967#       SiS 7016 and NS DP83815 PCI fast ethernet controller chips.
1968# sk:   Support for the SysKonnect SK-984x series PCI gigabit ethernet NICs.
1969#       This includes the SK-9841 and SK-9842 single port cards (single mode
1970#       and multimode fiber) and the SK-9843 and SK-9844 dual port cards
1971#       (also single mode and multimode).
1972#       The driver will autodetect the number of ports on the card and
1973#       attach each one as a separate network interface.
1974# sn:   Support for ISA and PC Card Ethernet devices using the
1975#       SMC91C90/92/94/95 chips.
1976# ste:  Sundance Technologies ST201 PCI fast ethernet controller, includes
1977#       the D-Link DFE-550TX.
1978# stge: Support for gigabit ethernet adapters based on the Sundance/Tamarack
1979#       TC9021 family of controllers, including the Sundance ST2021/ST2023,
1980#       the Sundance/Tamarack TC9021, the D-Link DL-4000 and ASUS NX1101.
1981# ti:   Support for PCI gigabit ethernet NICs based on the Alteon Networks
1982#       Tigon 1 and Tigon 2 chipsets.  This includes the Alteon AceNIC, the
1983#       3Com 3c985, the Netgear GA620 and various others.  Note that you will
1984#       probably want to bump up kern.ipc.nmbclusters a lot to use this driver.
1985# tl:   Support for the Texas Instruments TNETE100 series 'ThunderLAN'
1986#       cards and integrated ethernet controllers.  This includes several
1987#       Compaq Netelligent 10/100 cards and the built-in ethernet controllers
1988#       in several Compaq Prosignia, Proliant and Deskpro systems.  It also
1989#       supports several Olicom 10Mbps and 10/100 boards.
1990# tx:   SMC 9432 TX, BTX and FTX cards. (SMC EtherPower II series)
1991# txp:	Support for 3Com 3cR990 cards with the "Typhoon" chipset
1992# vr:   Support for various fast ethernet adapters based on the VIA
1993#       Technologies VT3043 `Rhine I' and VT86C100A `Rhine II' chips,
1994#       including the D-Link DFE520TX and D-Link DFE530TX (see 'rl' for
1995#       DFE530TX+), the Hawking Technologies PN102TX, and the AOpen/Acer ALN-320.
1996# vte:  DM&P Vortex86 RDC R6040 Fast Ethernet
1997# vx:   3Com 3C590 and 3C595
1998# wb:   Support for fast ethernet adapters based on the Winbond W89C840F chip.
1999#       Note: this is not the same as the Winbond W89C940F, which is a
2000#       NE2000 clone.
2001# wi:   Lucent WaveLAN/IEEE 802.11 PCMCIA adapters. Note: this supports both
2002#       the PCMCIA and ISA cards: the ISA card is really a PCMCIA to ISA
2003#       bridge with a PCMCIA adapter plugged into it.
2004# xe:   Xircom/Intel EtherExpress Pro100/16 PC Card ethernet controller,
2005#       Accton Fast EtherCard-16, Compaq Netelligent 10/100 PC Card,
2006#       Toshiba 10/100 Ethernet PC Card, Xircom 16-bit Ethernet + Modem 56
2007# xl:   Support for the 3Com 3c900, 3c905, 3c905B and 3c905C (Fast)
2008#       Etherlink XL cards and integrated controllers.  This includes the
2009#       integrated 3c905B-TX chips in certain Dell Optiplex and Dell
2010#       Precision desktop machines and the integrated 3c905-TX chips
2011#       in Dell Latitude laptop docking stations.
2012#       Also supported: 3Com 3c980(C)-TX, 3Com 3cSOHO100-TX, 3Com 3c450-TX
2013
2014# Order for ISA/EISA devices is important here
2015
2016device		cm
2017hint.cm.0.at="isa"
2018hint.cm.0.port="0x2e0"
2019hint.cm.0.irq="9"
2020hint.cm.0.maddr="0xdc000"
2021device		ep
2022device		ex
2023device		fe
2024hint.fe.0.at="isa"
2025hint.fe.0.port="0x300"
2026device		fea
2027device		sn
2028hint.sn.0.at="isa"
2029hint.sn.0.port="0x300"
2030hint.sn.0.irq="10"
2031device		an
2032device		wi
2033device		xe
2034
2035# PCI Ethernet NICs that use the common MII bus controller code.
2036device		ae		# Attansic/Atheros L2 FastEthernet
2037device		age		# Attansic/Atheros L1 Gigabit Ethernet
2038device		alc		# Atheros AR8131/AR8132 Ethernet
2039device		ale		# Atheros AR8121/AR8113/AR8114 Ethernet
2040device		bce		# Broadcom BCM5706/BCM5708 Gigabit Ethernet
2041device		bfe		# Broadcom BCM440x 10/100 Ethernet
2042device		bge		# Broadcom BCM570xx Gigabit Ethernet
2043device		cas		# Sun Cassini/Cassini+ and NS DP83065 Saturn
2044device		cxgb		# Chelsio T3 10 Gigabit Ethernet
2045device		cxgb_t3fw	# Chelsio T3 10 Gigabit Ethernet firmware
2046device		dc		# DEC/Intel 21143 and various workalikes
2047device		et		# Agere ET1310 10/100/Gigabit Ethernet
2048device		fxp		# Intel EtherExpress PRO/100B (82557, 82558)
2049hint.fxp.0.prefer_iomap="0"
2050device		gem		# Apple GMAC/Sun ERI/Sun GEM
2051device		hme		# Sun HME (Happy Meal Ethernet)
2052device		jme		# JMicron JMC250 Gigabit/JMC260 Fast Ethernet
2053device		lge		# Level 1 LXT1001 gigabit Ethernet
2054device		msk		# Marvell/SysKonnect Yukon II Gigabit Ethernet
2055device		my		# Myson Fast Ethernet (MTD80X, MTD89X)
2056device		nge		# NatSemi DP83820 gigabit Ethernet
2057device		re		# RealTek 8139C+/8169/8169S/8110S
2058device		rl		# RealTek 8129/8139
2059device		pcn		# AMD Am79C97x PCI 10/100 NICs
2060device		sf		# Adaptec AIC-6915 (``Starfire'')
2061device		sge		# Silicon Integrated Systems SiS190/191
2062device		sis		# Silicon Integrated Systems SiS 900/SiS 7016
2063device		sk		# SysKonnect SK-984x & SK-982x gigabit Ethernet
2064device		ste		# Sundance ST201 (D-Link DFE-550TX)
2065device		stge		# Sundance/Tamarack TC9021 gigabit Ethernet
2066device		tl		# Texas Instruments ThunderLAN
2067device		tx		# SMC EtherPower II (83c170 ``EPIC'')
2068device		vr		# VIA Rhine, Rhine II
2069device		vte		# DM&P Vortex86 RDC R6040 Fast Ethernet
2070device		wb		# Winbond W89C840F
2071device		xl		# 3Com 3c90x (``Boomerang'', ``Cyclone'')
2072
2073# PCI Ethernet NICs.
2074device		cxgbe		# Chelsio T4 10GbE PCIe adapter
2075device		de		# DEC/Intel DC21x4x (``Tulip'')
2076device		em		# Intel Pro/1000 Gigabit Ethernet
2077device		igb		# Intel Pro/1000 PCIE Gigabit Ethernet
2078device		ixgb		# Intel Pro/10Gbe PCI-X Ethernet
2079device		ixgbe		# Intel Pro/10Gbe PCIE Ethernet
2080device		le		# AMD Am7900 LANCE and Am79C9xx PCnet
2081device		mxge		# Myricom Myri-10G 10GbE NIC
2082device		nxge		# Neterion Xframe 10GbE Server/Storage Adapter
2083device		oce		# Emulex 10 GbE (OneConnect Ethernet)
2084device		ti		# Alteon Networks Tigon I/II gigabit Ethernet
2085device		txp		# 3Com 3cR990 (``Typhoon'')
2086device		vx		# 3Com 3c590, 3c595 (``Vortex'')
2087device		vxge		# Exar/Neterion XFrame 3100 10GbE
2088
2089# PCI FDDI NICs.
2090device		fpa
2091
2092# PCI WAN adapters.
2093device		lmc
2094
2095# PCI IEEE 802.11 Wireless NICs
2096device		ath		# Atheros pci/cardbus NIC's
2097device		ath_hal		# pci/cardbus chip support
2098#device		ath_ar5210	# AR5210 chips
2099#device		ath_ar5211	# AR5211 chips
2100#device		ath_ar5212	# AR5212 chips
2101#device		ath_rf2413
2102#device		ath_rf2417
2103#device		ath_rf2425
2104#device		ath_rf5111
2105#device		ath_rf5112
2106#device		ath_rf5413
2107#device		ath_ar5416	# AR5416 chips
2108options 	AH_SUPPORT_AR5416	# enable AR5416 tx/rx descriptors
2109# All of the AR5212 parts have a problem when paired with the AR71xx
2110# CPUS.  These parts have a bug that triggers a fatal bus error on the AR71xx
2111# only.  Details of the exact nature of the bug are sketchy, but some can be
2112# found at https://forum.openwrt.org/viewtopic.php?pid=70060 on pages 4, 5 and
2113# 6.  This option enables this workaround.  There is a performance penalty
2114# for this work around, but without it things don't work at all.  The DMA
2115# from the card usually bursts 128 bytes, but on the affected CPUs, only
2116# 4 are safe.
2117options	   	AH_RXCFG_SDMAMW_4BYTES
2118#device		ath_ar9160	# AR9160 chips
2119#device		ath_ar9280	# AR9280 chips
2120#device		ath_ar9285	# AR9285 chips
2121device		ath_rate_sample	# SampleRate tx rate control for ath
2122device		bwi		# Broadcom BCM430* BCM431*
2123device		bwn		# Broadcom BCM43xx
2124device		malo		# Marvell Libertas wireless NICs.
2125device		mwl		# Marvell 88W8363 802.11n wireless NICs.
2126device		mwlfw
2127device		ral		# Ralink Technology RT2500 wireless NICs.
2128
2129# Use sf_buf(9) interface for jumbo buffers on ti(4) controllers.
2130#options 	TI_SF_BUF_JUMBO
2131# Turn on the header splitting option for the ti(4) driver firmware.  This
2132# only works for Tigon II chips, and has no effect for Tigon I chips.
2133# This option requires the TI_SF_BUF_JUMBO option above.
2134#options 	TI_JUMBO_HDRSPLIT
2135
2136# These two options allow manipulating the mbuf cluster size and mbuf size,
2137# respectively.  Be very careful with NIC driver modules when changing
2138# these from their default values, because that can potentially cause a
2139# mismatch between the mbuf size assumed by the kernel and the mbuf size
2140# assumed by a module.  The only driver that currently has the ability to
2141# detect a mismatch is ti(4).
2142options 	MCLSHIFT=12	# mbuf cluster shift in bits, 12 == 4KB
2143options 	MSIZE=512	# mbuf size in bytes
2144
2145#
2146# ATM related options (Cranor version)
2147# (note: this driver cannot be used with the HARP ATM stack)
2148#
2149# The `en' device provides support for Efficient Networks (ENI)
2150# ENI-155 PCI midway cards, and the Adaptec 155Mbps PCI ATM cards (ANA-59x0).
2151#
2152# The `hatm' device provides support for Fore/Marconi HE155 and HE622
2153# ATM PCI cards.
2154#
2155# The `fatm' device provides support for Fore PCA200E ATM PCI cards.
2156#
2157# The `patm' device provides support for IDT77252 based cards like
2158# ProSum's ProATM-155 and ProATM-25 and IDT's evaluation boards.
2159#
2160# atm device provides generic atm functions and is required for
2161# atm devices.
2162# NATM enables the netnatm protocol family that can be used to
2163# bypass TCP/IP.
2164#
2165# utopia provides the access to the ATM PHY chips and is required for en,
2166# hatm and fatm.
2167#
2168# the current driver supports only PVC operations (no atm-arp, no multicast).
2169# for more details, please read the original documents at
2170# http://www.ccrc.wustl.edu/pub/chuck/tech/bsdatm/bsdatm.html
2171#
2172device		atm
2173device		en
2174device		fatm			#Fore PCA200E
2175device		hatm			#Fore/Marconi HE155/622
2176device		patm			#IDT77252 cards (ProATM and IDT)
2177device		utopia			#ATM PHY driver
2178options 	NATM			#native ATM
2179
2180options 	LIBMBPOOL		#needed by patm, iatm
2181
2182#
2183# Sound drivers
2184#
2185# sound: The generic sound driver.
2186#
2187
2188device		sound
2189
2190#
2191# snd_*: Device-specific drivers.
2192#
2193# The flags of the device tell the device a bit more info about the
2194# device that normally is obtained through the PnP interface.
2195#	bit  2..0   secondary DMA channel;
2196#	bit  4      set if the board uses two dma channels;
2197#	bit 15..8   board type, overrides autodetection; leave it
2198#		    zero if don't know what to put in (and you don't,
2199#		    since this is unsupported at the moment...).
2200#
2201# snd_ad1816:		Analog Devices AD1816 ISA PnP/non-PnP.
2202# snd_als4000:		Avance Logic ALS4000 PCI.
2203# snd_atiixp:		ATI IXP 200/300/400 PCI.
2204# snd_audiocs:		Crystal Semiconductor CS4231 SBus/EBus. Only
2205#			for sparc64.
2206# snd_cmi:		CMedia CMI8338/CMI8738 PCI.
2207# snd_cs4281:		Crystal Semiconductor CS4281 PCI.
2208# snd_csa:		Crystal Semiconductor CS461x/428x PCI. (except
2209#			4281)
2210# snd_ds1:		Yamaha DS-1 PCI.
2211# snd_emu10k1:		Creative EMU10K1 PCI and EMU10K2 (Audigy) PCI.
2212# snd_emu10kx:		Creative SoundBlaster Live! and Audigy
2213# snd_envy24:		VIA Envy24 and compatible, needs snd_spicds.
2214# snd_envy24ht:		VIA Envy24HT and compatible, needs snd_spicds.
2215# snd_es137x:		Ensoniq AudioPCI ES137x PCI.
2216# snd_ess:		Ensoniq ESS ISA PnP/non-PnP, to be used in
2217#			conjunction with snd_sbc.
2218# snd_fm801:		Forte Media FM801 PCI.
2219# snd_gusc:		Gravis UltraSound ISA PnP/non-PnP.
2220# snd_hda:		Intel High Definition Audio (Controller) and
2221#			compatible.
2222# snd_hdspe:		RME HDSPe AIO and RayDAT.
2223# snd_ich:		Intel ICH AC'97 and some more audio controllers
2224#			embedded in a chipset, for example nVidia
2225#			nForce controllers.
2226# snd_maestro:		ESS Technology Maestro-1/2x PCI.
2227# snd_maestro3:		ESS Technology Maestro-3/Allegro PCI.
2228# snd_mss:		Microsoft Sound System ISA PnP/non-PnP.
2229# snd_neomagic:		Neomagic 256 AV/ZX PCI.
2230# snd_sb16:		Creative SoundBlaster16, to be used in
2231#			conjunction with snd_sbc.
2232# snd_sb8:		Creative SoundBlaster (pre-16), to be used in
2233#			conjunction with snd_sbc.
2234# snd_sbc:		Creative SoundBlaster ISA PnP/non-PnP.
2235#			Supports ESS and Avance ISA chips as well.
2236# snd_solo:		ESS Solo-1x PCI.
2237# snd_spicds:		SPI codec driver, needed by Envy24/Envy24HT drivers.
2238# snd_t4dwave:		Trident 4DWave DX/NX PCI, Sis 7018 PCI and Acer Labs
2239#			M5451 PCI.
2240# snd_uaudio:		USB audio.
2241# snd_via8233:		VIA VT8233x PCI.
2242# snd_via82c686:	VIA VT82C686A PCI.
2243# snd_vibes:		S3 Sonicvibes PCI.
2244
2245device		snd_ad1816
2246device		snd_als4000
2247device		snd_atiixp
2248#device		snd_audiocs
2249device		snd_cmi
2250device		snd_cs4281
2251device		snd_csa
2252device		snd_ds1
2253device		snd_emu10k1
2254device		snd_emu10kx
2255device		snd_envy24
2256device		snd_envy24ht
2257device		snd_es137x
2258device		snd_ess
2259device		snd_fm801
2260device		snd_gusc
2261device		snd_hda
2262device		snd_hdspe
2263device		snd_ich
2264device		snd_maestro
2265device		snd_maestro3
2266device		snd_mss
2267device		snd_neomagic
2268device		snd_sb16
2269device		snd_sb8
2270device		snd_sbc
2271device		snd_solo
2272device		snd_spicds
2273device		snd_t4dwave
2274device		snd_uaudio
2275device		snd_via8233
2276device		snd_via82c686
2277device		snd_vibes
2278
2279# For non-PnP sound cards:
2280hint.pcm.0.at="isa"
2281hint.pcm.0.irq="10"
2282hint.pcm.0.drq="1"
2283hint.pcm.0.flags="0x0"
2284hint.sbc.0.at="isa"
2285hint.sbc.0.port="0x220"
2286hint.sbc.0.irq="5"
2287hint.sbc.0.drq="1"
2288hint.sbc.0.flags="0x15"
2289hint.gusc.0.at="isa"
2290hint.gusc.0.port="0x220"
2291hint.gusc.0.irq="5"
2292hint.gusc.0.drq="1"
2293hint.gusc.0.flags="0x13"
2294
2295#
2296# Following options are intended for debugging/testing purposes:
2297#
2298# SND_DEBUG                    Enable extra debugging code that includes
2299#                              sanity checking and possible increase of
2300#                              verbosity.
2301#
2302# SND_DIAGNOSTIC               Similar in a spirit of INVARIANTS/DIAGNOSTIC,
2303#                              zero tolerance against inconsistencies.
2304#
2305# SND_FEEDER_MULTIFORMAT       By default, only 16/32 bit feeders are compiled
2306#                              in. This options enable most feeder converters
2307#                              except for 8bit. WARNING: May bloat the kernel.
2308#
2309# SND_FEEDER_FULL_MULTIFORMAT  Ditto, but includes 8bit feeders as well.
2310#
2311# SND_FEEDER_RATE_HP           (feeder_rate) High precision 64bit arithmetic
2312#                              as much as possible (the default trying to
2313#                              avoid it). Possible slowdown.
2314#
2315# SND_PCM_64                   (Only applicable for i386/32bit arch)
2316#                              Process 32bit samples through 64bit
2317#                              integer/arithmetic. Slight increase of dynamic
2318#                              range at a cost of possible slowdown.
2319#
2320# SND_OLDSTEREO                Only 2 channels are allowed, effectively
2321#                              disabling multichannel processing.
2322#
2323options		SND_DEBUG
2324options		SND_DIAGNOSTIC
2325options		SND_FEEDER_MULTIFORMAT
2326options		SND_FEEDER_FULL_MULTIFORMAT
2327options		SND_FEEDER_RATE_HP
2328options		SND_PCM_64
2329options		SND_OLDSTEREO
2330
2331#
2332# IEEE-488 hardware:
2333# pcii:		PCIIA cards (uPD7210 based isa cards)
2334# tnt4882:	National Instruments PCI-GPIB card.
2335
2336device	pcii
2337hint.pcii.0.at="isa"
2338hint.pcii.0.port="0x2e1"
2339hint.pcii.0.irq="5"
2340hint.pcii.0.drq="1"
2341
2342device	tnt4882
2343
2344#
2345# Miscellaneous hardware:
2346#
2347# scd: Sony CD-ROM using proprietary (non-ATAPI) interface
2348# mcd: Mitsumi CD-ROM using proprietary (non-ATAPI) interface
2349# bktr: Brooktree bt848/848a/849a/878/879 video capture and TV Tuner board
2350# joy: joystick (including IO DATA PCJOY PC Card joystick)
2351# cmx: OmniKey CardMan 4040 pccard smartcard reader
2352
2353# Mitsumi CD-ROM
2354device		mcd
2355hint.mcd.0.at="isa"
2356hint.mcd.0.port="0x300"
2357# for the Sony CDU31/33A CDROM
2358device		scd
2359hint.scd.0.at="isa"
2360hint.scd.0.port="0x230"
2361device		joy			# PnP aware, hints for non-PnP only
2362hint.joy.0.at="isa"
2363hint.joy.0.port="0x201"
2364device		cmx
2365
2366#
2367# The 'bktr' device is a PCI video capture device using the Brooktree
2368# bt848/bt848a/bt849a/bt878/bt879 chipset. When used with a TV Tuner it forms a
2369# TV card, e.g. Miro PC/TV, Hauppauge WinCast/TV WinTV, VideoLogic Captivator,
2370# Intel Smart Video III, AverMedia, IMS Turbo, FlyVideo.
2371#
2372# options 	OVERRIDE_CARD=xxx
2373# options 	OVERRIDE_TUNER=xxx
2374# options 	OVERRIDE_MSP=1
2375# options 	OVERRIDE_DBX=1
2376# These options can be used to override the auto detection
2377# The current values for xxx are found in src/sys/dev/bktr/bktr_card.h
2378# Using sysctl(8) run-time overrides on a per-card basis can be made
2379#
2380# options 	BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_PAL
2381# or
2382# options 	BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_NTSC
2383# Specifies the default video capture mode.
2384# This is required for Dual Crystal (28&35MHz) boards where PAL is used
2385# to prevent hangs during initialization, e.g. VideoLogic Captivator PCI.
2386#
2387# options 	BKTR_USE_PLL
2388# This is required for PAL or SECAM boards with a 28MHz crystal and no 35MHz
2389# crystal, e.g. some new Bt878 cards.
2390#
2391# options 	BKTR_GPIO_ACCESS
2392# This enables IOCTLs which give user level access to the GPIO port.
2393#
2394# options 	BKTR_NO_MSP_RESET
2395# Prevents the MSP34xx reset. Good if you initialize the MSP in another OS first
2396#
2397# options 	BKTR_430_FX_MODE
2398# Switch Bt878/879 cards into Intel 430FX chipset compatibility mode.
2399#
2400# options 	BKTR_SIS_VIA_MODE
2401# Switch Bt878/879 cards into SIS/VIA chipset compatibility mode which is
2402# needed for some old SiS and VIA chipset motherboards.
2403# This also allows Bt878/879 chips to work on old OPTi (<1997) chipset
2404# motherboards and motherboards with bad or incomplete PCI 2.1 support.
2405# As a rough guess, old = before 1998
2406#
2407# options 	BKTR_NEW_MSP34XX_DRIVER
2408# Use new, more complete initialization scheme for the msp34* soundchip.
2409# Should fix stereo autodetection if the old driver does only output
2410# mono sound.
2411
2412#
2413# options 	BKTR_USE_FREEBSD_SMBUS
2414# Compile with FreeBSD SMBus implementation
2415#
2416# Brooktree driver has been ported to the new I2C framework. Thus,
2417# you'll need to have the following 3 lines in the kernel config.
2418#     device smbus
2419#     device iicbus
2420#     device iicbb
2421#     device iicsmb
2422# The iic and smb devices are only needed if you want to control other
2423# I2C slaves connected to the external connector of some cards.
2424#
2425device		bktr
2426
2427#
2428# PC Card/PCMCIA and Cardbus
2429#
2430# cbb: pci/cardbus bridge implementing YENTA interface
2431# pccard: pccard slots
2432# cardbus: cardbus slots
2433device		cbb
2434device		pccard
2435device		cardbus
2436
2437#
2438# MMC/SD
2439#
2440# mmc 		MMC/SD bus
2441# mmcsd		MMC/SD memory card
2442# sdhci		Generic PCI SD Host Controller
2443#
2444device		mmc
2445device		mmcsd
2446device		sdhci
2447
2448#
2449# SMB bus
2450#
2451# System Management Bus support is provided by the 'smbus' device.
2452# Access to the SMBus device is via the 'smb' device (/dev/smb*),
2453# which is a child of the 'smbus' device.
2454#
2455# Supported devices:
2456# smb		standard I/O through /dev/smb*
2457#
2458# Supported SMB interfaces:
2459# iicsmb	I2C to SMB bridge with any iicbus interface
2460# bktr		brooktree848 I2C hardware interface
2461# intpm		Intel PIIX4 (82371AB, 82443MX) Power Management Unit
2462# alpm		Acer Aladdin-IV/V/Pro2 Power Management Unit
2463# ichsmb	Intel ICH SMBus controller chips (82801AA, 82801AB, 82801BA)
2464# viapm		VIA VT82C586B/596B/686A and VT8233 Power Management Unit
2465# amdpm		AMD 756 Power Management Unit
2466# amdsmb	AMD 8111 SMBus 2.0 Controller
2467# nfpm		NVIDIA nForce Power Management Unit
2468# nfsmb		NVIDIA nForce2/3/4 MCP SMBus 2.0 Controller
2469#
2470device		smbus		# Bus support, required for smb below.
2471
2472device		intpm
2473device		alpm
2474device		ichsmb
2475device		viapm
2476device		amdpm
2477device		amdsmb
2478device		nfpm
2479device		nfsmb
2480
2481device		smb
2482
2483#
2484# I2C Bus
2485#
2486# Philips i2c bus support is provided by the `iicbus' device.
2487#
2488# Supported devices:
2489# ic	i2c network interface
2490# iic	i2c standard io
2491# iicsmb i2c to smb bridge. Allow i2c i/o with smb commands.
2492# iicoc simple polling driver for OpenCores I2C controller
2493#
2494# Supported interfaces:
2495# bktr	brooktree848 I2C software interface
2496#
2497# Other:
2498# iicbb	generic I2C bit-banging code (needed by lpbb, bktr)
2499#
2500device		iicbus		# Bus support, required for ic/iic/iicsmb below.
2501device		iicbb
2502
2503device		ic
2504device		iic
2505device		iicsmb		# smb over i2c bridge
2506device		iicoc		# OpenCores I2C controller support
2507
2508# I2C peripheral devices
2509#
2510# ds133x	Dallas Semiconductor DS1337, DS1338 and DS1339 RTC
2511# ds1374	Dallas Semiconductor DS1374 RTC
2512# ds1672	Dallas Semiconductor DS1672 RTC
2513# s35390a	Seiko Instruments S-35390A RTC
2514#
2515device		ds133x
2516device		ds1374
2517device		ds1672
2518device		s35390a
2519
2520# Parallel-Port Bus
2521#
2522# Parallel port bus support is provided by the `ppbus' device.
2523# Multiple devices may be attached to the parallel port, devices
2524# are automatically probed and attached when found.
2525#
2526# Supported devices:
2527# vpo	Iomega Zip Drive
2528#	Requires SCSI disk support ('scbus' and 'da'), best
2529#	performance is achieved with ports in EPP 1.9 mode.
2530# lpt	Parallel Printer
2531# plip	Parallel network interface
2532# ppi	General-purpose I/O ("Geek Port") + IEEE1284 I/O
2533# pps	Pulse per second Timing Interface
2534# lpbb	Philips official parallel port I2C bit-banging interface
2535# pcfclock Parallel port clock driver.
2536#
2537# Supported interfaces:
2538# ppc	ISA-bus parallel port interfaces.
2539#
2540
2541options 	PPC_PROBE_CHIPSET # Enable chipset specific detection
2542				  # (see flags in ppc(4))
2543options 	DEBUG_1284	# IEEE1284 signaling protocol debug
2544options 	PERIPH_1284	# Makes your computer act as an IEEE1284
2545				# compliant peripheral
2546options 	DONTPROBE_1284	# Avoid boot detection of PnP parallel devices
2547options 	VP0_DEBUG	# ZIP/ZIP+ debug
2548options 	LPT_DEBUG	# Printer driver debug
2549options 	PPC_DEBUG	# Parallel chipset level debug
2550options 	PLIP_DEBUG	# Parallel network IP interface debug
2551options 	PCFCLOCK_VERBOSE         # Verbose pcfclock driver
2552options 	PCFCLOCK_MAX_RETRIES=5   # Maximum read tries (default 10)
2553
2554device		ppc
2555hint.ppc.0.at="isa"
2556hint.ppc.0.irq="7"
2557device		ppbus
2558device		vpo
2559device		lpt
2560device		plip
2561device		ppi
2562device		pps
2563device		lpbb
2564device		pcfclock
2565
2566# Kernel BOOTP support
2567
2568options 	BOOTP		# Use BOOTP to obtain IP address/hostname
2569				# Requires NFSCLIENT and NFS_ROOT
2570options 	BOOTP_NFSROOT	# NFS mount root filesystem using BOOTP info
2571options 	BOOTP_NFSV3	# Use NFS v3 to NFS mount root
2572options 	BOOTP_COMPAT	# Workaround for broken bootp daemons.
2573options 	BOOTP_WIRED_TO=fxp0 # Use interface fxp0 for BOOTP
2574options 	BOOTP_BLOCKSIZE=8192 # Override NFS block size
2575
2576#
2577# Add software watchdog routines.
2578#
2579options 	SW_WATCHDOG
2580
2581#
2582# Add the software deadlock resolver thread.
2583#
2584options 	DEADLKRES
2585
2586#
2587# Disable swapping of stack pages.  This option removes all
2588# code which actually performs swapping, so it's not possible to turn
2589# it back on at run-time.
2590#
2591# This is sometimes usable for systems which don't have any swap space
2592# (see also sysctls "vm.defer_swapspace_pageouts" and
2593# "vm.disable_swapspace_pageouts")
2594#
2595#options 	NO_SWAPPING
2596
2597# Set the number of sf_bufs to allocate. sf_bufs are virtual buffers
2598# for sendfile(2) that are used to map file VM pages, and normally
2599# default to a quantity that is roughly 16*MAXUSERS+512. You would
2600# typically want about 4 of these for each simultaneous file send.
2601#
2602options 	NSFBUFS=1024
2603
2604#
2605# Enable extra debugging code for locks.  This stores the filename and
2606# line of whatever acquired the lock in the lock itself, and changes a
2607# number of function calls to pass around the relevant data.  This is
2608# not at all useful unless you are debugging lock code.  Also note
2609# that it is likely to break e.g. fstat(1) unless you recompile your
2610# userland with -DDEBUG_LOCKS as well.
2611#
2612options 	DEBUG_LOCKS
2613
2614
2615#####################################################################
2616# USB support
2617# UHCI controller
2618device		uhci
2619# OHCI controller
2620device		ohci
2621# EHCI controller
2622device		ehci
2623# XHCI controller
2624device		xhci
2625# SL811 Controller
2626#device		slhci
2627# General USB code (mandatory for USB)
2628device		usb
2629#
2630# USB Double Bulk Pipe devices
2631device		udbp
2632# USB Fm Radio
2633device		ufm
2634# Human Interface Device (anything with buttons and dials)
2635device		uhid
2636# USB keyboard
2637device		ukbd
2638# USB printer
2639device		ulpt
2640# USB mass storage driver (Requires scbus and da)
2641device		umass
2642# USB mass storage driver for device-side mode
2643device		usfs
2644# USB support for Belkin F5U109 and Magic Control Technology serial adapters
2645device		umct
2646# USB modem support
2647device		umodem
2648# USB mouse
2649device		ums
2650# USB touchpad(s)
2651device		atp
2652device		wsp
2653# eGalax USB touch screen
2654device		uep
2655# Diamond Rio 500 MP3 player
2656device		urio
2657#
2658# USB serial support
2659device		ucom
2660# USB support for 3G modem cards by Option, Novatel, Huawei and Sierra
2661device		u3g
2662# USB support for Technologies ARK3116 based serial adapters
2663device		uark
2664# USB support for Belkin F5U103 and compatible serial adapters
2665device		ubsa
2666# USB support for serial adapters based on the FT8U100AX and FT8U232AM
2667device		uftdi
2668# USB support for some Windows CE based serial communication.
2669device		uipaq
2670# USB support for Prolific PL-2303 serial adapters
2671device		uplcom
2672# USB support for Silicon Laboratories CP2101/CP2102 based USB serial adapters
2673device		uslcom
2674# USB Visor and Palm devices
2675device		uvisor
2676# USB serial support for DDI pocket's PHS
2677device		uvscom
2678#
2679# ADMtek USB ethernet. Supports the LinkSys USB100TX,
2680# the Billionton USB100, the Melco LU-ATX, the D-Link DSB-650TX
2681# and the SMC 2202USB. Also works with the ADMtek AN986 Pegasus
2682# eval board.
2683device		aue
2684
2685# ASIX Electronics AX88172 USB 2.0 ethernet driver. Used in the
2686# LinkSys USB200M and various other adapters.
2687device		axe
2688
2689#
2690# Devices which communicate using Ethernet over USB, particularly
2691# Communication Device Class (CDC) Ethernet specification. Supports
2692# Sharp Zaurus PDAs, some DOCSIS cable modems and so on.
2693device		cdce
2694#
2695# CATC USB-EL1201A USB ethernet. Supports the CATC Netmate
2696# and Netmate II, and the Belkin F5U111.
2697device		cue
2698#
2699# Kawasaki LSI ethernet. Supports the LinkSys USB10T,
2700# Entrega USB-NET-E45, Peracom Ethernet Adapter, the
2701# 3Com 3c19250, the ADS Technologies USB-10BT, the ATen UC10T,
2702# the Netgear EA101, the D-Link DSB-650, the SMC 2102USB
2703# and 2104USB, and the Corega USB-T.
2704device		kue
2705#
2706# RealTek RTL8150 USB to fast ethernet. Supports the Melco LUA-KTX
2707# and the GREEN HOUSE GH-USB100B.
2708device		rue
2709#
2710# Davicom DM9601E USB to fast ethernet. Supports the Corega FEther USB-TXC.
2711device		udav
2712#
2713# Moschip MCS7730/MCS7840 USB to fast ethernet. Supports the Sitecom LN030.
2714device		mos
2715#
2716# HSxPA devices from Option N.V
2717device		uhso
2718
2719# Realtek RTL8188SU/RTL8191SU/RTL8192SU wireless driver
2720device		rsu
2721#
2722# Ralink Technology RT2501USB/RT2601USB wireless driver
2723device		rum
2724# Ralink Technology RT2700U/RT2800U/RT3000U wireless driver
2725device		run
2726#
2727# Atheros AR5523 wireless driver
2728device		uath
2729#
2730# Conexant/Intersil PrismGT wireless driver
2731device		upgt
2732#
2733# Ralink Technology RT2500USB wireless driver
2734device		ural
2735#
2736# RNDIS USB ethernet driver
2737device		urndis
2738# Realtek RTL8187B/L wireless driver
2739device		urtw
2740#
2741# Realtek RTL8188CU/RTL8192CU wireless driver
2742device		urtwn
2743#
2744# ZyDas ZD1211/ZD1211B wireless driver
2745device		zyd
2746#
2747# Sierra USB wireless driver
2748device		usie
2749
2750#
2751# debugging options for the USB subsystem
2752#
2753options 	USB_DEBUG
2754options 	U3G_DEBUG
2755
2756# options for ukbd:
2757options 	UKBD_DFLT_KEYMAP	# specify the built-in keymap
2758makeoptions	UKBD_DFLT_KEYMAP=it.iso
2759
2760# options for uplcom:
2761options 	UPLCOM_INTR_INTERVAL=100	# interrupt pipe interval
2762						# in milliseconds
2763
2764# options for uvscom:
2765options 	UVSCOM_DEFAULT_OPKTSIZE=8	# default output packet size
2766options 	UVSCOM_INTR_INTERVAL=100	# interrupt pipe interval
2767						# in milliseconds
2768
2769#####################################################################
2770# FireWire support
2771
2772device		firewire	# FireWire bus code
2773device		sbp		# SCSI over Firewire (Requires scbus and da)
2774device		sbp_targ	# SBP-2 Target mode  (Requires scbus and targ)
2775device		fwe		# Ethernet over FireWire (non-standard!)
2776device		fwip		# IP over FireWire (RFC2734 and RFC3146)
2777
2778#####################################################################
2779# dcons support (Dumb Console Device)
2780
2781device		dcons			# dumb console driver
2782device		dcons_crom		# FireWire attachment
2783options 	DCONS_BUF_SIZE=16384	# buffer size
2784options 	DCONS_POLL_HZ=100	# polling rate
2785options 	DCONS_FORCE_CONSOLE=0	# force to be the primary console
2786options 	DCONS_FORCE_GDB=1	# force to be the gdb device
2787
2788#####################################################################
2789# crypto subsystem
2790#
2791# This is a port of the OpenBSD crypto framework.  Include this when
2792# configuring IPSEC and when you have a h/w crypto device to accelerate
2793# user applications that link to OpenSSL.
2794#
2795# Drivers are ports from OpenBSD with some simple enhancements that have
2796# been fed back to OpenBSD.
2797
2798device		crypto		# core crypto support
2799device		cryptodev	# /dev/crypto for access to h/w
2800
2801device		rndtest		# FIPS 140-2 entropy tester
2802
2803device		hifn		# Hifn 7951, 7781, etc.
2804options 	HIFN_DEBUG	# enable debugging support: hw.hifn.debug
2805options 	HIFN_RNDTEST	# enable rndtest support
2806
2807device		ubsec		# Broadcom 5501, 5601, 58xx
2808options 	UBSEC_DEBUG	# enable debugging support: hw.ubsec.debug
2809options 	UBSEC_RNDTEST	# enable rndtest support
2810
2811#####################################################################
2812
2813
2814#
2815# Embedded system options:
2816#
2817# An embedded system might want to run something other than init.
2818options 	INIT_PATH=/sbin/init:/rescue/init
2819
2820# Debug options
2821options 	BUS_DEBUG	# enable newbus debugging
2822options 	DEBUG_VFS_LOCKS	# enable VFS lock debugging
2823options 	SOCKBUF_DEBUG	# enable sockbuf last record/mb tail checking
2824
2825#
2826# Verbose SYSINIT
2827#
2828# Make the SYSINIT process performed by mi_startup() verbose.  This is very
2829# useful when porting to a new architecture.  If DDB is also enabled, this
2830# will print function names instead of addresses.
2831options 	VERBOSE_SYSINIT
2832
2833#####################################################################
2834# SYSV IPC KERNEL PARAMETERS
2835#
2836# Maximum number of System V semaphores that can be used on the system at
2837# one time.
2838options 	SEMMNI=11
2839
2840# Total number of semaphores system wide
2841options 	SEMMNS=61
2842
2843# Total number of undo structures in system
2844options 	SEMMNU=31
2845
2846# Maximum number of System V semaphores that can be used by a single process
2847# at one time.
2848options 	SEMMSL=61
2849
2850# Maximum number of operations that can be outstanding on a single System V
2851# semaphore at one time.
2852options 	SEMOPM=101
2853
2854# Maximum number of undo operations that can be outstanding on a single
2855# System V semaphore at one time.
2856options 	SEMUME=11
2857
2858# Maximum number of shared memory pages system wide.
2859options 	SHMALL=1025
2860
2861# Maximum size, in bytes, of a single System V shared memory region.
2862options 	SHMMAX=(SHMMAXPGS*PAGE_SIZE+1)
2863options 	SHMMAXPGS=1025
2864
2865# Minimum size, in bytes, of a single System V shared memory region.
2866options 	SHMMIN=2
2867
2868# Maximum number of shared memory regions that can be used on the system
2869# at one time.
2870options 	SHMMNI=33
2871
2872# Maximum number of System V shared memory regions that can be attached to
2873# a single process at one time.
2874options 	SHMSEG=9
2875
2876# Compress user core dumps.
2877options		COMPRESS_USER_CORES
2878# required to compress file output from kernel for COMPRESS_USER_CORES.
2879device		gzio
2880
2881# Set the amount of time (in seconds) the system will wait before
2882# rebooting automatically when a kernel panic occurs.  If set to (-1),
2883# the system will wait indefinitely until a key is pressed on the
2884# console.
2885options 	PANIC_REBOOT_WAIT_TIME=16
2886
2887# Attempt to bypass the buffer cache and put data directly into the
2888# userland buffer for read operation when O_DIRECT flag is set on the
2889# file.  Both offset and length of the read operation must be
2890# multiples of the physical media sector size.
2891#
2892options 	DIRECTIO
2893
2894# Specify a lower limit for the number of swap I/O buffers.  They are
2895# (among other things) used when bypassing the buffer cache due to
2896# DIRECTIO kernel option enabled and O_DIRECT flag set on file.
2897#
2898options 	NSWBUF_MIN=120
2899
2900#####################################################################
2901
2902# More undocumented options for linting.
2903# Note that documenting these is not considered an affront.
2904
2905options 	CAM_DEBUG_DELAY
2906
2907# VFS cluster debugging.
2908options 	CLUSTERDEBUG
2909
2910options 	DEBUG
2911
2912# Kernel filelock debugging.
2913options 	LOCKF_DEBUG
2914
2915# System V compatible message queues
2916# Please note that the values provided here are used to test kernel
2917# building.  The defaults in the sources provide almost the same numbers.
2918# MSGSSZ must be a power of 2 between 8 and 1024.
2919options 	MSGMNB=2049	# Max number of chars in queue
2920options 	MSGMNI=41	# Max number of message queue identifiers
2921options 	MSGSEG=2049	# Max number of message segments
2922options 	MSGSSZ=16	# Size of a message segment
2923options 	MSGTQL=41	# Max number of messages in system
2924
2925options 	NBUF=512	# Number of buffer headers
2926
2927options 	SCSI_NCR_DEBUG
2928options 	SCSI_NCR_MAX_SYNC=10000
2929options 	SCSI_NCR_MAX_WIDE=1
2930options 	SCSI_NCR_MYADDR=7
2931
2932options 	SC_DEBUG_LEVEL=5	# Syscons debug level
2933options 	SC_RENDER_DEBUG	# syscons rendering debugging
2934
2935options 	VFS_BIO_DEBUG	# VFS buffer I/O debugging
2936
2937options 	KSTACK_MAX_PAGES=32 # Maximum pages to give the kernel stack
2938
2939# Adaptec Array Controller driver options
2940options 	AAC_DEBUG	# Debugging levels:
2941				# 0 - quiet, only emit warnings
2942				# 1 - noisy, emit major function
2943				#     points and things done
2944				# 2 - extremely noisy, emit trace
2945				#     items in loops, etc.
2946
2947# Resource Accounting
2948options 	RACCT
2949
2950# Resource Limits
2951options 	RCTL
2952
2953# Yet more undocumented options for linting.
2954# BKTR_ALLOC_PAGES has no effect except to cause warnings, and
2955# BROOKTREE_ALLOC_PAGES hasn't actually been superseded by it, since the
2956# driver still mostly spells this option BROOKTREE_ALLOC_PAGES.
2957##options 	BKTR_ALLOC_PAGES=(217*4+1)
2958options 	BROOKTREE_ALLOC_PAGES=(217*4+1)
2959options 	MAXFILES=999
2960
2961# Random number generator
2962options 	RANDOM_YARROW	# Yarrow RNG
2963##options 	RANDOM_FORTUNA	# Fortuna RNG - not yet implemented
2964options 	RANDOM_DEBUG	# Debugging messages
2965options 	RANDOM_RWFILE	# Read and write entropy cache
2966