xref: /freebsd/sys/conf/NOTES (revision 1e413cf93298b5b97441a21d9a50fdcd0ee9945e)
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#
54# The `makeoptions' parameter allows variables to be passed to the
55# generated Makefile in the build area.
56#
57# CONF_CFLAGS gives some extra compiler flags that are added to ${CFLAGS}
58# after most other flags.  Here we use it to inhibit use of non-optimal
59# gcc built-in functions (e.g., memcmp).
60#
61# DEBUG happens to be magic.
62# The following is equivalent to 'config -g KERNELNAME' and creates
63# 'kernel.debug' compiled with -g debugging as well as a normal
64# 'kernel'.  Use 'make install.debug' to install the debug kernel
65# but that isn't normally necessary as the debug symbols are not loaded
66# by the kernel and are not useful there anyway.
67#
68# KERNEL can be overridden so that you can change the default name of your
69# kernel.
70#
71# MODULES_OVERRIDE can be used to limit modules built to a specific list.
72#
73makeoptions	CONF_CFLAGS=-fno-builtin  #Don't allow use of memcmp, etc.
74#makeoptions	DEBUG=-g		#Build kernel with gdb(1) debug symbols
75#makeoptions	KERNEL=foo		#Build kernel "foo" and install "/foo"
76# Only build ext2fs module plus those parts of the sound system I need.
77#makeoptions	MODULES_OVERRIDE="ext2fs sound/sound sound/driver/maestro3"
78makeoptions	DESTDIR=/tmp
79
80#
81# FreeBSD processes are subject to certain limits to their consumption
82# of system resources.  See getrlimit(2) for more details.  Each
83# resource limit has two values, a "soft" limit and a "hard" limit.
84# The soft limits can be modified during normal system operation, but
85# the hard limits are set at boot time.  Their default values are
86# in sys/<arch>/include/vmparam.h.  There are two ways to change them:
87#
88# 1.  Set the values at kernel build time.  The options below are one
89#     way to allow that limit to grow to 1GB.  They can be increased
90#     further by changing the parameters:
91#
92# 2.  In /boot/loader.conf, set the tunables kern.maxswzone,
93#     kern.maxbcache, kern.maxtsiz, kern.dfldsiz, kern.maxdsiz,
94#     kern.dflssiz, kern.maxssiz and kern.sgrowsiz.
95#
96# The options in /boot/loader.conf override anything in the kernel
97# configuration file.  See the function init_param1 in
98# sys/kern/subr_param.c for more details.
99#
100
101options 	MAXDSIZ=(1024UL*1024*1024)
102options 	MAXSSIZ=(128UL*1024*1024)
103options 	DFLDSIZ=(1024UL*1024*1024)
104
105#
106# BLKDEV_IOSIZE sets the default block size used in user block
107# device I/O.  Note that this value will be overridden by the label
108# when specifying a block device from a label with a non-0
109# partition blocksize.  The default is PAGE_SIZE.
110#
111options 	BLKDEV_IOSIZE=8192
112
113#
114# MAXPHYS and DFLTPHYS
115#
116# These are the max and default 'raw' I/O block device access sizes.
117# Reads and writes will be split into DFLTPHYS chunks. Some applications
118# have better performance with larger raw I/O access sizes. Typically
119# MAXPHYS should be twice the size of DFLTPHYS. Note that certain VM
120# parameters are derived from these values and making them too large
121# can make an an unbootable kernel.
122#
123# The defaults are 64K and 128K respectively.
124options 	DFLTPHYS=(64*1024)
125options 	MAXPHYS=(128*1024)
126
127
128# This allows you to actually store this configuration file into
129# the kernel binary itself. See config(8) for more details.
130#
131options 	INCLUDE_CONFIG_FILE     # Include this file in kernel
132
133options 	GEOM_AES		# Don't use, use GEOM_BDE
134options 	GEOM_BDE		# Disk encryption.
135options 	GEOM_BSD		# BSD disklabels
136options 	GEOM_CACHE		# Disk cache.
137options 	GEOM_CONCAT		# Disk concatenation.
138options 	GEOM_ELI		# Disk encryption.
139options 	GEOM_FOX		# Redundant path mitigation
140options 	GEOM_GATE		# Userland services.
141options 	GEOM_JOURNAL		# Journaling.
142options 	GEOM_LABEL		# Providers labelization.
143options 	GEOM_MBR		# DOS/MBR partitioning
144options 	GEOM_MIRROR		# Disk mirroring.
145options 	GEOM_MULTIPATH		# Disk multipath
146options 	GEOM_NOP		# Test class.
147options 	GEOM_PART_APM		# Apple partitioning
148options 	GEOM_PART_BSD		# BSD disklabel
149options 	GEOM_PART_GPT		# GPT partitioning
150options 	GEOM_PART_MBR		# MBR partitioning
151options 	GEOM_PC98		# NEC PC9800 partitioning
152options 	GEOM_RAID3		# RAID3 functionality.
153options 	GEOM_SHSEC		# Shared secret.
154options 	GEOM_STRIPE		# Disk striping.
155options 	GEOM_SUNLABEL		# Sun/Solaris partitioning
156options 	GEOM_UZIP		# Read-only compressed disks
157options 	GEOM_VIRSTOR		# Virtual storage.
158options 	GEOM_VOL		# Volume names from UFS superblock
159options 	GEOM_ZERO		# Performance testing helper.
160
161#
162# The root device and filesystem type can be compiled in;
163# this provides a fallback option if the root device cannot
164# be correctly guessed by the bootstrap code, or an override if
165# the RB_DFLTROOT flag (-r) is specified when booting the kernel.
166#
167options 	ROOTDEVNAME=\"ufs:da0s2e\"
168
169
170#####################################################################
171# Scheduler options:
172#
173# Specifying one of SCHED_4BSD or SCHED_ULE is mandatory.  These options
174# select which scheduler is compiled in.
175#
176# SCHED_4BSD is the historical, proven, BSD scheduler.  It has a global run
177# queue and no CPU affinity which makes it suboptimal for SMP.  It has very
178# good interactivity and priority selection.
179#
180# SCHED_ULE provides significant performance advantages over 4BSD on many
181# workloads on SMP machines.  It supports cpu-affinity, per-cpu runqueues
182# and scheduler locks.  It also has a stronger notion of interactivity
183# which leads to better responsiveness even on uniprocessor machines.  This
184# will eventually become the default scheduler.
185#
186options 	SCHED_4BSD
187#options 	SCHED_ULE
188
189#####################################################################
190# SMP OPTIONS:
191#
192# SMP enables building of a Symmetric MultiProcessor Kernel.
193
194# Mandatory:
195options 	SMP			# Symmetric MultiProcessor Kernel
196
197# ADAPTIVE_MUTEXES changes the behavior of blocking mutexes to spin
198# if the thread that currently owns the mutex is executing on another
199# CPU.  This behaviour is enabled by default, so this option can be used
200# to disable it.
201options 	NO_ADAPTIVE_MUTEXES
202
203# ADAPTIVE_RWLOCKS changes the behavior of reader/writer locks to spin
204# if the thread that currently owns the rwlock is executing on another
205# CPU.  This behaviour is enabled by default, so this option can be used
206# to disable it.
207options 	NO_ADAPTIVE_RWLOCKS
208
209# ADAPTIVE_SX changes the behavior of sx locks to spin if the thread
210# that currently owns the lock is executing on another CPU.  Note that
211# in addition to enabling this option, individual sx locks must be
212# initialized with the SX_ADAPTIVESPIN flag.
213options 	ADAPTIVE_SX
214
215# MUTEX_NOINLINE forces mutex operations to call functions to perform each
216# operation rather than inlining the simple cases.  This can be used to
217# shrink the size of the kernel text segment.  Note that this behavior is
218# already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
219# and WITNESS options.
220options 	MUTEX_NOINLINE
221
222# RWLOCK_NOINLINE forces rwlock operations to call functions to perform each
223# operation rather than inlining the simple cases.  This can be used to
224# shrink the size of the kernel text segment.  Note that this behavior is
225# already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
226# and WITNESS options.
227options 	RWLOCK_NOINLINE
228
229# SX_NOINLINE forces sx lock operations to call functions to perform each
230# operation rather than inlining the simple cases.  This can be used to
231# shrink the size of the kernel text segment.  Note that this behavior is
232# already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
233# and WITNESS options.
234options 	SX_NOINLINE
235
236# SMP Debugging Options:
237#
238# PREEMPTION allows the threads that are in the kernel to be preempted
239#	  by higher priority threads.  It helps with interactivity and
240#	  allows interrupt threads to run sooner rather than waiting.
241#	  WARNING! Only tested on amd64 and i386.
242# FULL_PREEMPTION instructs the kernel to preempt non-realtime kernel
243#	  threads.  Its sole use is to expose race conditions and other
244#	  bugs during development.  Enabling this option will reduce
245#	  performance and increase the frequency of kernel panics by
246#	  design.  If you aren't sure that you need it then you don't.
247#	  Relies on the PREEMPTION option.  DON'T TURN THIS ON.
248# MUTEX_DEBUG enables various extra assertions in the mutex code.
249# SLEEPQUEUE_PROFILING enables rudimentary profiling of the hash table
250#	  used to hold active sleep queues.
251# TURNSTILE_PROFILING enables rudimentary profiling of the hash table
252#	  used to hold active lock queues.
253# WITNESS enables the witness code which detects deadlocks and cycles
254#         during locking operations.
255# WITNESS_KDB causes the witness code to drop into the kernel debugger if
256#	  a lock hierarchy violation occurs or if locks are held when going to
257#	  sleep.
258# WITNESS_SKIPSPIN disables the witness checks on spin mutexes.
259options 	PREEMPTION
260options 	FULL_PREEMPTION
261options 	MUTEX_DEBUG
262options 	WITNESS
263options 	WITNESS_KDB
264options 	WITNESS_SKIPSPIN
265
266# LOCK_PROFILING - Profiling locks.  See LOCK_PROFILING(9) for details.
267options 	LOCK_PROFILING
268# Set the number of buffers and the hash size.  The hash size MUST be larger
269# than the number of buffers.  Hash size should be prime.
270options 	MPROF_BUFFERS="1536"
271options 	MPROF_HASH_SIZE="1543"
272
273# Profiling for internal hash tables.
274options 	SLEEPQUEUE_PROFILING
275options 	TURNSTILE_PROFILING
276
277
278#####################################################################
279# COMPATIBILITY OPTIONS
280
281#
282# Implement system calls compatible with 4.3BSD and older versions of
283# FreeBSD.  You probably do NOT want to remove this as much current code
284# still relies on the 4.3 emulation.  Note that some architectures that
285# are supported by FreeBSD do not include support for certain important
286# aspects of this compatibility option, namely those related to the
287# signal delivery mechanism.
288#
289options 	COMPAT_43
290
291# Old tty interface.
292options 	COMPAT_43TTY
293
294# Enable FreeBSD4 compatibility syscalls
295options 	COMPAT_FREEBSD4
296
297# Enable FreeBSD5 compatibility syscalls
298options 	COMPAT_FREEBSD5
299
300# Enable FreeBSD6 compatibility syscalls
301options 	COMPAT_FREEBSD6
302
303# Enable FreeBSD7 compatibility syscalls
304options 	COMPAT_FREEBSD7
305
306#
307# These three options provide support for System V Interface
308# Definition-style interprocess communication, in the form of shared
309# memory, semaphores, and message queues, respectively.
310#
311options 	SYSVSHM
312options 	SYSVSEM
313options 	SYSVMSG
314
315
316#####################################################################
317# DEBUGGING OPTIONS
318
319#
320# Compile with kernel debugger related code.
321#
322options 	KDB
323
324#
325# Print a stack trace of the current thread on the console for a panic.
326#
327options 	KDB_TRACE
328
329#
330# Don't enter the debugger for a panic. Intended for unattended operation
331# where you may want to enter the debugger from the console, but still want
332# the machine to recover from a panic.
333#
334options 	KDB_UNATTENDED
335
336#
337# Enable the ddb debugger backend.
338#
339options 	DDB
340
341#
342# Print the numerical value of symbols in addition to the symbolic
343# representation.
344#
345options 	DDB_NUMSYM
346
347#
348# Enable the remote gdb debugger backend.
349#
350options 	GDB
351
352#
353# SYSCTL_DEBUG enables a 'sysctl' debug tree that can be used to dump the
354# contents of the registered sysctl nodes on the console.  It is disabled by
355# default because it generates excessively verbose console output that can
356# interfere with serial console operation.
357#
358options 	SYSCTL_DEBUG
359
360#
361# DEBUG_MEMGUARD builds and enables memguard(9), a replacement allocator
362# for the kernel used to detect modify-after-free scenarios.  See the
363# memguard(9) man page for more information on usage.
364#
365options 	DEBUG_MEMGUARD
366
367#
368# DEBUG_REDZONE enables buffer underflows and buffer overflows detection for
369# malloc(9).
370#
371options 	DEBUG_REDZONE
372
373#
374# KTRACE enables the system-call tracing facility ktrace(2).  To be more
375# SMP-friendly, KTRACE uses a worker thread to process most trace events
376# asynchronously to the thread generating the event.  This requires a
377# pre-allocated store of objects representing trace events.  The
378# KTRACE_REQUEST_POOL option specifies the initial size of this store.
379# The size of the pool can be adjusted both at boottime and runtime via
380# the kern.ktrace_request_pool tunable and sysctl.
381#
382options 	KTRACE			#kernel tracing
383options 	KTRACE_REQUEST_POOL=101
384
385#
386# KTR is a kernel tracing mechanism imported from BSD/OS.  Currently
387# it has no userland interface aside from a few sysctl's.  It is
388# enabled with the KTR option.  KTR_ENTRIES defines the number of
389# entries in the circular trace buffer; it must be a power of two.
390# KTR_COMPILE defines the mask of events to compile into the kernel as
391# defined by the KTR_* constants in <sys/ktr.h>.  KTR_MASK defines the
392# initial value of the ktr_mask variable which determines at runtime
393# what events to trace.  KTR_CPUMASK determines which CPU's log
394# events, with bit X corresponding to CPU X.  KTR_VERBOSE enables
395# dumping of KTR events to the console by default.  This functionality
396# can be toggled via the debug.ktr_verbose sysctl and defaults to off
397# if KTR_VERBOSE is not defined.
398#
399options 	KTR
400options 	KTR_ENTRIES=1024
401options 	KTR_COMPILE=(KTR_INTR|KTR_PROC)
402options 	KTR_MASK=KTR_INTR
403options 	KTR_CPUMASK=0x3
404options 	KTR_VERBOSE
405
406#
407# ALQ(9) is a facility for the asynchronous queuing of records from the kernel
408# to a vnode, and is employed by services such as KTR(4) to produce trace
409# files based on a kernel event stream.  Records are written asynchronously
410# in a worker thread.
411#
412options 	ALQ
413options 	KTR_ALQ
414
415#
416# The INVARIANTS option is used in a number of source files to enable
417# extra sanity checking of internal structures.  This support is not
418# enabled by default because of the extra time it would take to check
419# for these conditions, which can only occur as a result of
420# programming errors.
421#
422options 	INVARIANTS
423
424#
425# The INVARIANT_SUPPORT option makes us compile in support for
426# verifying some of the internal structures.  It is a prerequisite for
427# 'INVARIANTS', as enabling 'INVARIANTS' will make these functions be
428# called.  The intent is that you can set 'INVARIANTS' for single
429# source files (by changing the source file or specifying it on the
430# command line) if you have 'INVARIANT_SUPPORT' enabled.  Also, if you
431# wish to build a kernel module with 'INVARIANTS', then adding
432# 'INVARIANT_SUPPORT' to your kernel will provide all the necessary
433# infrastructure without the added overhead.
434#
435options 	INVARIANT_SUPPORT
436
437#
438# The DIAGNOSTIC option is used to enable extra debugging information
439# from some parts of the kernel.  As this makes everything more noisy,
440# it is disabled by default.
441#
442options 	DIAGNOSTIC
443
444#
445# REGRESSION causes optional kernel interfaces necessary only for regression
446# testing to be enabled.  These interfaces may constitute security risks
447# when enabled, as they permit processes to easily modify aspects of the
448# run-time environment to reproduce unlikely or unusual (possibly normally
449# impossible) scenarios.
450#
451options 	REGRESSION
452
453#
454# RESTARTABLE_PANICS allows one to continue from a panic as if it were
455# a call to the debugger to continue from a panic as instead.  It is only
456# useful if a kernel debugger is present.  To restart from a panic, reset
457# the panicstr variable to NULL and continue execution.  This option is
458# for development use only and should NOT be used in production systems
459# to "workaround" a panic.
460#
461#options 	RESTARTABLE_PANICS
462
463#
464# This option let some drivers co-exist that can't co-exist in a running
465# system.  This is used to be able to compile all kernel code in one go for
466# quality assurance purposes (like this file, which the option takes it name
467# from.)
468#
469options 	COMPILING_LINT
470
471#
472# STACK enables the stack(9) facility, allowing the capture of kernel stack
473# for the purpose of procinfo(1), etc.  stack(9) will also be compiled in
474# automatically if DDB(4) is compiled into the kernel.
475#
476options 	STACK
477
478
479#####################################################################
480# PERFORMANCE MONITORING OPTIONS
481
482#
483# The hwpmc driver that allows the use of in-CPU performance monitoring
484# counters for performance monitoring.  The base kernel needs to configured
485# with the 'options' line, while the hwpmc device can be either compiled
486# in or loaded as a loadable kernel module.
487#
488# Additional configuration options may be required on specific architectures,
489# please see hwpmc(4).
490
491device  	hwpmc			# Driver (also a loadable module)
492options 	HWPMC_HOOKS		# Other necessary kernel hooks
493
494
495#####################################################################
496# NETWORKING OPTIONS
497
498#
499# Protocol families
500#
501options 	INET			#Internet communications protocols
502options 	INET6			#IPv6 communications protocols
503
504# In order to enable IPSEC you MUST also add device crypto to
505# your kernel configuration
506options 	IPSEC			#IP security (requires device crypto)
507#options 	IPSEC_DEBUG		#debug for IP security
508#
509# Set IPSEC_FILTERTUNNEL to force packets coming through a tunnel
510# to be processed by any configured packet filtering twice.
511# The default is that packets coming out of a tunnel are _not_ processed;
512# they are assumed trusted.
513#
514# IPSEC history is preserved for such packets, and can be filtered
515# using ipfw(8)'s 'ipsec' keyword, when this option is enabled.
516#
517#options 	IPSEC_FILTERTUNNEL	#filter ipsec packets from a tunnel
518
519options 	IPX			#IPX/SPX communications protocols
520
521options 	NCP			#NetWare Core protocol
522
523options 	NETATALK		#Appletalk communications protocols
524options 	NETATALKDEBUG		#Appletalk debugging
525
526#
527# SMB/CIFS requester
528# NETSMB enables support for SMB protocol, it requires LIBMCHAIN and LIBICONV
529# options.
530options 	NETSMB			#SMB/CIFS requester
531
532# mchain library. It can be either loaded as KLD or compiled into kernel
533options 	LIBMCHAIN
534
535# libalias library, performing NAT
536options		LIBALIAS
537
538#
539# SCTP is a NEW transport protocol defined by
540# RFC2960 updated by RFC3309 and RFC3758.. and
541# soon to have a new base RFC and many many more
542# extensions. This release supports all the extensions
543# including many drafts (most about to become RFC's).
544# It is the premeier SCTP implementation in the NET
545# and is quite well tested.
546#
547# Note YOU MUST have both INET and INET6 defined.
548# you don't have to enable V6, but SCTP is
549# dual stacked and so far we have not teased apart
550# the V6 and V4.. since an association can span
551# both a V6 and V4 address at the SAME time :-)
552#
553options         SCTP
554# There are bunches of options:
555# this one turns on all sorts of
556# nastly printing that you can
557# do. Its all controled by a
558# bit mask (settable by socket opt and
559# by sysctl). Including will not cause
560# logging until you set the bits.. but it
561# can be quite verbose.. so without this
562# option we don't do any of the tests for
563# bits and prints.. which makes the code run
564# faster.. if you are not debugging don't use.
565options SCTP_DEBUG
566#
567# This option turns off the CRC32c checksum. Basically
568# You will not be able to talk to anyone else that
569# has not done this. Its more for expermentation to
570# see how much CPU the CRC32c really takes. Most new
571# cards for TCP support checksum offload.. so this
572# option gives you a "view" into what SCTP would be
573# like with such an offload (which only exists in
574# high in iSCSI boards so far). With the new
575# splitting 8's algorithm its not as bad as it used
576# to be.. but it does speed things up try only
577# for in a captured lab environment :-)
578options SCTP_WITH_NO_CSUM
579#
580
581#
582# All that options after that turn on specific types of
583# logging. You can monitor CWND growth, flight size
584# and all sorts of things. Go look at the code and
585# see. I have used this to produce interesting
586# charts and graphs as well :->
587#
588# I have not yet commited the tools to get and print
589# the logs, I will do that eventually .. before then
590# if you want them send me an email rrs@freebsd.org
591# You basically must have KTR enabled for these
592# and you then set the sysctl to turn on/off various
593# logging bits. Use ktrdump to pull the log and run
594# it through a dispaly program.. and graphs and other
595# things too.
596#
597options 	SCTP_LOCK_LOGGING
598options 	SCTP_MBUF_LOGGING
599options 	SCTP_MBCNT_LOGGING
600options 	SCTP_PACKET_LOGGING
601options		SCTP_LTRACE_CHUNKS
602options 	SCTP_LTRACE_ERRORS
603
604
605# altq(9). Enable the base part of the hooks with the ALTQ option.
606# Individual disciplines must be built into the base system and can not be
607# loaded as modules at this point. ALTQ requires a stable TSC so if yours is
608# broken or changes with CPU throttling then you must also have the ALTQ_NOPCC
609# option.
610options 	ALTQ
611options 	ALTQ_CBQ	# Class Based Queueing
612options 	ALTQ_RED	# Random Early Detection
613options 	ALTQ_RIO	# RED In/Out
614options 	ALTQ_HFSC	# Hierarchical Packet Scheduler
615options 	ALTQ_CDNR	# Traffic conditioner
616options 	ALTQ_PRIQ	# Priority Queueing
617options 	ALTQ_NOPCC	# Required if the TSC is unusable
618options 	ALTQ_DEBUG
619
620# netgraph(4). Enable the base netgraph code with the NETGRAPH option.
621# Individual node types can be enabled with the corresponding option
622# listed below; however, this is not strictly necessary as netgraph
623# will automatically load the corresponding KLD module if the node type
624# is not already compiled into the kernel. Each type below has a
625# corresponding man page, e.g., ng_async(8).
626options 	NETGRAPH		# netgraph(4) system
627options 	NETGRAPH_DEBUG		# enable extra debugging, this
628					# affects netgraph(4) and nodes
629# Node types
630options 	NETGRAPH_ASYNC
631options 	NETGRAPH_ATMLLC
632options 	NETGRAPH_ATM_ATMPIF
633options 	NETGRAPH_BLUETOOTH		# ng_bluetooth(4)
634options 	NETGRAPH_BLUETOOTH_BT3C		# ng_bt3c(4)
635options 	NETGRAPH_BLUETOOTH_H4		# ng_h4(4)
636options 	NETGRAPH_BLUETOOTH_HCI		# ng_hci(4)
637options 	NETGRAPH_BLUETOOTH_L2CAP	# ng_l2cap(4)
638options 	NETGRAPH_BLUETOOTH_SOCKET	# ng_btsocket(4)
639options 	NETGRAPH_BLUETOOTH_UBT		# ng_ubt(4)
640options 	NETGRAPH_BLUETOOTH_UBTBCMFW	# ubtbcmfw(4)
641options 	NETGRAPH_BPF
642options 	NETGRAPH_BRIDGE
643options 	NETGRAPH_CAR
644options 	NETGRAPH_CISCO
645options 	NETGRAPH_DEFLATE
646options 	NETGRAPH_DEVICE
647options 	NETGRAPH_ECHO
648options 	NETGRAPH_EIFACE
649options 	NETGRAPH_ETHER
650options 	NETGRAPH_FEC
651options 	NETGRAPH_FRAME_RELAY
652options 	NETGRAPH_GIF
653options 	NETGRAPH_GIF_DEMUX
654options 	NETGRAPH_HOLE
655options 	NETGRAPH_IFACE
656options 	NETGRAPH_IP_INPUT
657options 	NETGRAPH_IPFW
658options 	NETGRAPH_KSOCKET
659options 	NETGRAPH_L2TP
660options 	NETGRAPH_LMI
661# MPPC compression requires proprietary files (not included)
662#options 	NETGRAPH_MPPC_COMPRESSION
663options 	NETGRAPH_MPPC_ENCRYPTION
664options 	NETGRAPH_NETFLOW
665options 	NETGRAPH_NAT
666options 	NETGRAPH_ONE2MANY
667options 	NETGRAPH_PPP
668options 	NETGRAPH_PPPOE
669options 	NETGRAPH_PPTPGRE
670options 	NETGRAPH_PRED1
671options 	NETGRAPH_RFC1490
672options 	NETGRAPH_SOCKET
673options 	NETGRAPH_SPLIT
674options 	NETGRAPH_SPPP
675options 	NETGRAPH_TAG
676options 	NETGRAPH_TCPMSS
677options 	NETGRAPH_TEE
678options 	NETGRAPH_TTY
679options 	NETGRAPH_UI
680options 	NETGRAPH_VJC
681
682# NgATM - Netgraph ATM
683options 	NGATM_ATM
684options 	NGATM_ATMBASE
685options 	NGATM_SSCOP
686options 	NGATM_SSCFU
687options 	NGATM_UNI
688options 	NGATM_CCATM
689
690device		mn	# Munich32x/Falc54 Nx64kbit/sec cards.
691
692#
693# Network interfaces:
694#  The `loop' device is MANDATORY when networking is enabled.
695#  The `ether' device provides generic code to handle
696#  Ethernets; it is MANDATORY when an Ethernet device driver is
697#  configured or token-ring is enabled.
698#  The `vlan' device implements the VLAN tagging of Ethernet frames
699#  according to IEEE 802.1Q.  It requires `device miibus'.
700#  The `wlan' device provides generic code to support 802.11
701#  drivers, including host AP mode; it is MANDATORY for the wi,
702#  ath, and awi drivers and will eventually be required by all 802.11 drivers.
703#  The `wlan_wep', `wlan_tkip', and `wlan_ccmp' devices provide
704#  support for WEP, TKIP, and AES-CCMP crypto protocols optionally
705#  used with 802.11 devices that depend on the `wlan' module.
706#  The `wlan_xauth' device provides support for external (i.e. user-mode)
707#  authenticators for use with 802.11 drivers that use the `wlan'
708#  module and support 802.1x and/or WPA security protocols.
709#  The `wlan_acl' device provides a MAC-based access control mechanism
710#  for use with 802.11 drivers operating in ap mode and using the
711#  `wlan' module.
712#  The `fddi' device provides generic code to support FDDI.
713#  The `arcnet' device provides generic code to support Arcnet.
714#  The `sppp' device serves a similar role for certain types
715#  of synchronous PPP links (like `cx', `ar').
716#  The `sl' device implements the Serial Line IP (SLIP) service.
717#  The `ppp' device implements the Point-to-Point Protocol.
718#  The `bpf' device enables the Berkeley Packet Filter.  Be
719#  aware of the legal and administrative consequences of enabling this
720#  option.  The number of devices determines the maximum number of
721#  simultaneous BPF clients programs runnable.  DHCP requires bpf.
722#  The `disc' device implements a minimal network interface,
723#  which throws away all packets sent and never receives any.  It is
724#  included for testing and benchmarking purposes.
725#  The `edsc' device implements a minimal Ethernet interface,
726#  which discards all packets sent and receives none.
727#  The `tap' device is a pty-like virtual Ethernet interface
728#  The `tun' device implements (user-)ppp and nos-tun
729#  The `gif' device implements IPv6 over IP4 tunneling,
730#  IPv4 over IPv6 tunneling, IPv4 over IPv4 tunneling and
731#  IPv6 over IPv6 tunneling.
732#  The `gre' device implements two types of IP4 over IP4 tunneling:
733#  GRE and MOBILE, as specified in the RFC1701 and RFC2004.
734#  The XBONEHACK option allows the same pair of addresses to be configured on
735#  multiple gif interfaces.
736#  The `faith' device captures packets sent to it and diverts them
737#  to the IPv4/IPv6 translation daemon.
738#  The `stf' device implements 6to4 encapsulation.
739#  The `ef' device provides support for multiple ethernet frame types
740#  specified via ETHER_* options. See ef(4) for details.
741#
742# The pf packet filter consists of three devices:
743#  The `pf' device provides /dev/pf and the firewall code itself.
744#  The `pflog' device provides the pflog0 interface which logs packets.
745#  The `pfsync' device provides the pfsync0 interface used for
746#   synchronization of firewall state tables (over the net).
747#
748# The PPP_BSDCOMP option enables support for compress(1) style entire
749# packet compression, the PPP_DEFLATE is for zlib/gzip style compression.
750# PPP_FILTER enables code for filtering the ppp data stream and selecting
751# events for resetting the demand dial activity timer - requires bpf.
752# See pppd(8) for more details.
753#
754device		ether			#Generic Ethernet
755device		vlan			#VLAN support (needs miibus)
756device		wlan			#802.11 support
757device		wlan_wep		#802.11 WEP support
758device		wlan_ccmp		#802.11 CCMP support
759device		wlan_tkip		#802.11 TKIP support
760device		wlan_xauth		#802.11 external authenticator support
761device		wlan_acl		#802.11 MAC ACL support
762device		wlan_amrr		#AMRR transmit rate control algorithm
763device		wlan_scan_ap		#802.11 AP mode scanning
764device		wlan_scan_sta		#802.11 STA mode scanning
765device		token			#Generic TokenRing
766device		fddi			#Generic FDDI
767device		arcnet			#Generic Arcnet
768device		sppp			#Generic Synchronous PPP
769device		loop			#Network loopback device
770device		bpf			#Berkeley packet filter
771device		disc			#Discard device based on loopback
772device		edsc			#Ethernet discard device
773device		tap			#Virtual Ethernet driver
774device		tun			#Tunnel driver (ppp(8), nos-tun(8))
775device		sl			#Serial Line IP
776device		gre			#IP over IP tunneling
777device		if_bridge		#Bridge interface
778device		pf			#PF OpenBSD packet-filter firewall
779device		pflog			#logging support interface for PF
780device		pfsync			#synchronization interface for PF
781device		carp			#Common Address Redundancy Protocol
782device		enc			#IPsec interface
783device		ppp			#Point-to-point protocol
784options 	PPP_BSDCOMP		#PPP BSD-compress support
785options 	PPP_DEFLATE		#PPP zlib/deflate/gzip support
786options 	PPP_FILTER		#enable bpf filtering (needs bpf)
787device		lagg			#Link aggregation interface
788
789device		ef			# Multiple ethernet frames support
790options 	ETHER_II		# enable Ethernet_II frame
791options 	ETHER_8023		# enable Ethernet_802.3 (Novell) frame
792options 	ETHER_8022		# enable Ethernet_802.2 frame
793options 	ETHER_SNAP		# enable Ethernet_802.2/SNAP frame
794
795# for IPv6
796device		gif			#IPv6 and IPv4 tunneling
797options 	XBONEHACK
798device		faith			#for IPv6 and IPv4 translation
799device		stf			#6to4 IPv6 over IPv4 encapsulation
800
801#
802# Internet family options:
803#
804# MROUTING enables the kernel multicast packet forwarder, which works
805# with mrouted and XORP.
806#
807# IPFIREWALL enables support for IP firewall construction, in
808# conjunction with the `ipfw' program.  IPFIREWALL_VERBOSE sends
809# logged packets to the system logger.  IPFIREWALL_VERBOSE_LIMIT
810# limits the number of times a matching entry can be logged.
811#
812# WARNING:  IPFIREWALL defaults to a policy of "deny ip from any to any"
813# and if you do not add other rules during startup to allow access,
814# YOU WILL LOCK YOURSELF OUT.  It is suggested that you set firewall_type=open
815# in /etc/rc.conf when first enabling this feature, then refining the
816# firewall rules in /etc/rc.firewall after you've tested that the new kernel
817# feature works properly.
818#
819# IPFIREWALL_DEFAULT_TO_ACCEPT causes the default rule (at boot) to
820# allow everything.  Use with care, if a cracker can crash your
821# firewall machine, they can get to your protected machines.  However,
822# if you are using it as an as-needed filter for specific problems as
823# they arise, then this may be for you.  Changing the default to 'allow'
824# means that you won't get stuck if the kernel and /sbin/ipfw binary get
825# out of sync.
826#
827# IPDIVERT enables the divert IP sockets, used by ``ipfw divert''.  It
828# depends on IPFIREWALL if compiled into the kernel.
829#
830# IPFIREWALL_FORWARD enables changing of the packet destination either
831# to do some sort of policy routing or transparent proxying.  Used by
832# ``ipfw forward''. All  redirections apply to locally generated
833# packets too.  Because of this great care is required when
834# crafting the ruleset.
835#
836# IPFIREWALL_NAT adds support for in kernel nat in ipfw, and it requires
837# LIBALIAS. To build an ipfw kld with nat support enabled, add
838# "CFLAGS+= -DIPFIREWALL_NAT" to your make.conf.
839#
840# IPSTEALTH enables code to support stealth forwarding (i.e., forwarding
841# packets without touching the TTL).  This can be useful to hide firewalls
842# from traceroute and similar tools.
843#
844# TCPDEBUG enables code which keeps traces of the TCP state machine
845# for sockets with the SO_DEBUG option set, which can then be examined
846# using the trpt(8) utility.
847#
848options 	MROUTING		# Multicast routing
849options 	IPFIREWALL		#firewall
850options 	IPFIREWALL_VERBOSE	#enable logging to syslogd(8)
851options 	IPFIREWALL_VERBOSE_LIMIT=100	#limit verbosity
852options 	IPFIREWALL_DEFAULT_TO_ACCEPT	#allow everything by default
853options 	IPFIREWALL_FORWARD	#packet destination changes
854options 	IPFIREWALL_NAT		#ipfw kernel nat support
855options 	IPDIVERT		#divert sockets
856options 	IPFILTER		#ipfilter support
857options 	IPFILTER_LOG		#ipfilter logging
858options 	IPFILTER_LOOKUP		#ipfilter pools
859options 	IPFILTER_DEFAULT_BLOCK	#block all packets by default
860options 	IPSTEALTH		#support for stealth forwarding
861options 	TCPDEBUG
862
863# The MBUF_STRESS_TEST option enables options which create
864# various random failures / extreme cases related to mbuf
865# functions.  See mbuf(9) for a list of available test cases.
866options 	MBUF_STRESS_TEST
867
868# Statically Link in accept filters
869options 	ACCEPT_FILTER_DATA
870options 	ACCEPT_FILTER_HTTP
871
872# TCP_SIGNATURE adds support for RFC 2385 (TCP-MD5) digests. These are
873# carried in TCP option 19. This option is commonly used to protect
874# TCP sessions (e.g. BGP) where IPSEC is not available nor desirable.
875# This is enabled on a per-socket basis using the TCP_MD5SIG socket option.
876# This requires the use of 'device crypto', 'options IPSEC'
877# or 'device cryptodev'.
878#options 	TCP_SIGNATURE		#include support for RFC 2385
879
880# DUMMYNET enables the "dummynet" bandwidth limiter.  You need IPFIREWALL
881# as well.  See dummynet(4) and ipfw(8) for more info.  When you run
882# DUMMYNET it is advisable to also have "options HZ=1000" to achieve a
883# smoother scheduling of the traffic.
884options 	DUMMYNET
885
886# Zero copy sockets support.  This enables "zero copy" for sending and
887# receiving data via a socket.  The send side works for any type of NIC,
888# the receive side only works for NICs that support MTUs greater than the
889# page size of your architecture and that support header splitting.  See
890# zero_copy(9) for more details.
891options 	ZERO_COPY_SOCKETS
892
893#
894# ATM (HARP version) options
895#
896# XXX: These have been disabled in FreeBSD 7.0 as they are not MPSAFE.
897#
898# ATM_CORE includes the base ATM functionality code.  This must be included
899#	for ATM support.
900#
901# ATM_IP includes support for running IP over ATM.
902#
903# At least one (and usually only one) of the following signalling managers
904# must be included (note that all signalling managers include PVC support):
905# ATM_SIGPVC includes support for the PVC-only signalling manager `sigpvc'.
906# ATM_SPANS includes support for the `spans' signalling manager, which runs
907#	the FORE Systems's proprietary SPANS signalling protocol.
908# ATM_UNI includes support for the `uni30' and `uni31' signalling managers,
909#	which run the ATM Forum UNI 3.x signalling protocols.
910#
911# The `hfa' driver provides support for the FORE Systems, Inc.
912# PCA-200E ATM PCI Adapter.
913#
914# The `harp' pseudo-driver makes all NATM interface drivers available to HARP.
915#
916#options 	ATM_CORE		#core ATM protocol family
917#options 	ATM_IP			#IP over ATM support
918#options 	ATM_SIGPVC		#SIGPVC signalling manager
919#options 	ATM_SPANS		#SPANS signalling manager
920#options 	ATM_UNI			#UNI signalling manager
921
922#device		hfa			#FORE PCA-200E ATM PCI
923#device		harp			#Pseudo-interface for NATM
924
925
926#####################################################################
927# FILESYSTEM OPTIONS
928
929#
930# Only the root, /usr, and /tmp filesystems need be statically
931# compiled; everything else will be automatically loaded at mount
932# time.  (Exception: the UFS family--- FFS --- cannot
933# currently be demand-loaded.)  Some people still prefer to statically
934# compile other filesystems as well.
935#
936# NB: The PORTAL filesystem is known to be buggy, and WILL panic your
937# system if you attempt to do anything with it.  It is included here
938# as an incentive for some enterprising soul to sit down and fix it.
939# The UNION filesystem was known to be buggy in the past.  It is now
940# being actively maintained, although there are still some issues being
941# resolved.
942#
943
944# One of these is mandatory:
945options 	FFS			#Fast filesystem
946options 	NFSCLIENT		#Network File System client
947
948# The rest are optional:
949options 	CD9660			#ISO 9660 filesystem
950options 	FDESCFS			#File descriptor filesystem
951options 	HPFS			#OS/2 File system
952options 	MSDOSFS			#MS DOS File System (FAT, FAT32)
953options 	NFSSERVER		#Network File System server
954options 	NTFS			#NT File System
955options 	NULLFS			#NULL filesystem
956# Broken (depends on NCP):
957#options 	NWFS			#NetWare filesystem
958options 	PORTALFS		#Portal filesystem
959options 	PROCFS			#Process filesystem (requires PSEUDOFS)
960options 	PSEUDOFS		#Pseudo-filesystem framework
961options 	PSEUDOFS_TRACE		#Debugging support for PSEUDOFS
962options 	SMBFS			#SMB/CIFS filesystem
963options 	UDF			#Universal Disk Format
964options 	UNIONFS			#Union filesystem
965# The xFS_ROOT options REQUIRE the associated ``options xFS''
966options 	NFS_ROOT		#NFS usable as root device
967
968# Soft updates is a technique for improving filesystem speed and
969# making abrupt shutdown less risky.
970#
971options 	SOFTUPDATES
972
973# Extended attributes allow additional data to be associated with files,
974# and is used for ACLs, Capabilities, and MAC labels.
975# See src/sys/ufs/ufs/README.extattr for more information.
976options 	UFS_EXTATTR
977options 	UFS_EXTATTR_AUTOSTART
978
979# Access Control List support for UFS filesystems.  The current ACL
980# implementation requires extended attribute support, UFS_EXTATTR,
981# for the underlying filesystem.
982# See src/sys/ufs/ufs/README.acls for more information.
983options 	UFS_ACL
984
985# Directory hashing improves the speed of operations on very large
986# directories at the expense of some memory.
987options 	UFS_DIRHASH
988
989# Gjournal-based UFS journaling support.
990options 	UFS_GJOURNAL
991
992# Make space in the kernel for a root filesystem on a md device.
993# Define to the number of kilobytes to reserve for the filesystem.
994options 	MD_ROOT_SIZE=10
995
996# Make the md device a potential root device, either with preloaded
997# images of type mfs_root or md_root.
998options 	MD_ROOT
999
1000# Disk quotas are supported when this option is enabled.
1001options 	QUOTA			#enable disk quotas
1002
1003# If you are running a machine just as a fileserver for PC and MAC
1004# users, using SAMBA or Netatalk, you may consider setting this option
1005# and keeping all those users' directories on a filesystem that is
1006# mounted with the suiddir option. This gives new files the same
1007# ownership as the directory (similar to group). It's a security hole
1008# if you let these users run programs, so confine it to file-servers
1009# (but it'll save you lots of headaches in those cases). Root owned
1010# directories are exempt and X bits are cleared. The suid bit must be
1011# set on the directory as well; see chmod(1) PC owners can't see/set
1012# ownerships so they keep getting their toes trodden on. This saves
1013# you all the support calls as the filesystem it's used on will act as
1014# they expect: "It's my dir so it must be my file".
1015#
1016options 	SUIDDIR
1017
1018# NFS options:
1019options 	NFS_MINATTRTIMO=3	# VREG attrib cache timeout in sec
1020options 	NFS_MAXATTRTIMO=60
1021options 	NFS_MINDIRATTRTIMO=30	# VDIR attrib cache timeout in sec
1022options 	NFS_MAXDIRATTRTIMO=60
1023options 	NFS_GATHERDELAY=10	# Default write gather delay (msec)
1024options 	NFS_WDELAYHASHSIZ=16	# and with this
1025options 	NFS_DEBUG		# Enable NFS Debugging
1026
1027# Coda stuff:
1028options 	CODA			#CODA filesystem.
1029device		vcoda			#coda minicache <-> venus comm.
1030# Use the old Coda 5.x venus<->kernel interface instead of the new
1031# realms-aware 6.x protocol.
1032#options 	CODA_COMPAT_5
1033
1034#
1035# Add support for the EXT2FS filesystem of Linux fame.  Be a bit
1036# careful with this - the ext2fs code has a tendency to lag behind
1037# changes and not be exercised very much, so mounting read/write could
1038# be dangerous (and even mounting read only could result in panics.)
1039#
1040options 	EXT2FS
1041
1042#
1043# Add support for the ReiserFS filesystem (used in Linux). Currently,
1044# this is limited to read-only access.
1045#
1046options 	REISERFS
1047
1048#
1049# Add support for the SGI XFS filesystem. Currently,
1050# this is limited to read-only access.
1051#
1052options 	XFS
1053
1054# Use real implementations of the aio_* system calls.  There are numerous
1055# stability and security issues in the current aio code that make it
1056# unsuitable for inclusion on machines with untrusted local users.
1057options 	VFS_AIO
1058
1059# Cryptographically secure random number generator; /dev/random
1060device		random
1061
1062# The system memory devices; /dev/mem, /dev/kmem
1063device		mem
1064
1065# Optional character code conversion support with LIBICONV.
1066# Each option requires their base file system and LIBICONV.
1067options 	CD9660_ICONV
1068options 	MSDOSFS_ICONV
1069options 	NTFS_ICONV
1070options 	UDF_ICONV
1071
1072
1073#####################################################################
1074# POSIX P1003.1B
1075
1076# Real time extensions added in the 1993 POSIX
1077# _KPOSIX_PRIORITY_SCHEDULING: Build in _POSIX_PRIORITY_SCHEDULING
1078
1079options 	_KPOSIX_PRIORITY_SCHEDULING
1080# p1003_1b_semaphores are very experimental,
1081# user should be ready to assist in debugging if problems arise.
1082options 	P1003_1B_SEMAPHORES
1083
1084# POSIX message queue
1085options 	P1003_1B_MQUEUE
1086
1087#####################################################################
1088# SECURITY POLICY PARAMETERS
1089
1090# Support for BSM audit
1091options 	AUDIT
1092
1093# Support for Mandatory Access Control (MAC):
1094options 	MAC
1095options 	MAC_BIBA
1096options 	MAC_BSDEXTENDED
1097options 	MAC_IFOFF
1098options 	MAC_LOMAC
1099options 	MAC_MLS
1100options 	MAC_NONE
1101options 	MAC_PARTITION
1102options 	MAC_PORTACL
1103options 	MAC_SEEOTHERUIDS
1104options 	MAC_STUB
1105options 	MAC_TEST
1106
1107
1108#####################################################################
1109# CLOCK OPTIONS
1110
1111# The granularity of operation is controlled by the kernel option HZ whose
1112# default value (100) means a granularity of 10ms (1s/HZ).
1113# Some subsystems, such as DUMMYNET, might benefit from a smaller
1114# granularity such as 1ms or less, for a smoother scheduling of packets.
1115# Consider, however, that reducing the granularity too much might
1116# cause excessive overhead in clock interrupt processing,
1117# potentially causing ticks to be missed and thus actually reducing
1118# the accuracy of operation.
1119
1120options 	HZ=100
1121
1122# Enable support for the kernel PLL to use an external PPS signal,
1123# under supervision of [x]ntpd(8)
1124# More info in ntpd documentation: http://www.eecis.udel.edu/~ntp
1125
1126options 	PPS_SYNC
1127
1128
1129#####################################################################
1130# SCSI DEVICES
1131
1132# SCSI DEVICE CONFIGURATION
1133
1134# The SCSI subsystem consists of the `base' SCSI code, a number of
1135# high-level SCSI device `type' drivers, and the low-level host-adapter
1136# device drivers.  The host adapters are listed in the ISA and PCI
1137# device configuration sections below.
1138#
1139# It is possible to wire down your SCSI devices so that a given bus,
1140# target, and LUN always come on line as the same device unit.  In
1141# earlier versions the unit numbers were assigned in the order that
1142# the devices were probed on the SCSI bus.  This means that if you
1143# removed a disk drive, you may have had to rewrite your /etc/fstab
1144# file, and also that you had to be careful when adding a new disk
1145# as it may have been probed earlier and moved your device configuration
1146# around.  (See also option GEOM_VOL for a different solution to this
1147# problem.)
1148
1149# This old behavior is maintained as the default behavior.  The unit
1150# assignment begins with the first non-wired down unit for a device
1151# type.  For example, if you wire a disk as "da3" then the first
1152# non-wired disk will be assigned da4.
1153
1154# The syntax for wiring down devices is:
1155
1156hint.scbus.0.at="ahc0"
1157hint.scbus.1.at="ahc1"
1158hint.scbus.1.bus="0"
1159hint.scbus.3.at="ahc2"
1160hint.scbus.3.bus="0"
1161hint.scbus.2.at="ahc2"
1162hint.scbus.2.bus="1"
1163hint.da.0.at="scbus0"
1164hint.da.0.target="0"
1165hint.da.0.unit="0"
1166hint.da.1.at="scbus3"
1167hint.da.1.target="1"
1168hint.da.2.at="scbus2"
1169hint.da.2.target="3"
1170hint.sa.1.at="scbus1"
1171hint.sa.1.target="6"
1172
1173# "units" (SCSI logical unit number) that are not specified are
1174# treated as if specified as LUN 0.
1175
1176# All SCSI devices allocate as many units as are required.
1177
1178# The ch driver drives SCSI Media Changer ("jukebox") devices.
1179#
1180# The da driver drives SCSI Direct Access ("disk") and Optical Media
1181# ("WORM") devices.
1182#
1183# The sa driver drives SCSI Sequential Access ("tape") devices.
1184#
1185# The cd driver drives SCSI Read Only Direct Access ("cd") devices.
1186#
1187# The ses driver drives SCSI Environment Services ("ses") and
1188# SAF-TE ("SCSI Accessible Fault-Tolerant Enclosure") devices.
1189#
1190# The pt driver drives SCSI Processor devices.
1191#
1192# The sg driver provides a passthrough API that is compatible with the
1193# Linux SG driver.  It will work in conjunction with the COMPAT_LINUX
1194# option to run linux SG apps.  It can also stand on its own and provide
1195# source level API compatiblity for porting apps to FreeBSD.
1196#
1197# Target Mode support is provided here but also requires that a SIM
1198# (SCSI Host Adapter Driver) provide support as well.
1199#
1200# The targ driver provides target mode support as a Processor type device.
1201# It exists to give the minimal context necessary to respond to Inquiry
1202# commands. There is a sample user application that shows how the rest
1203# of the command support might be done in /usr/share/examples/scsi_target.
1204#
1205# The targbh driver provides target mode support and exists to respond
1206# to incoming commands that do not otherwise have a logical unit assigned
1207# to them.
1208#
1209# The "unknown" device (uk? in pre-2.0.5) is now part of the base SCSI
1210# configuration as the "pass" driver.
1211
1212device		scbus		#base SCSI code
1213device		ch		#SCSI media changers
1214device		da		#SCSI direct access devices (aka disks)
1215device		sa		#SCSI tapes
1216device		cd		#SCSI CD-ROMs
1217device		ses		#SCSI Environmental Services (and SAF-TE)
1218device		pt		#SCSI processor
1219device		targ		#SCSI Target Mode Code
1220device		targbh		#SCSI Target Mode Blackhole Device
1221device		pass		#CAM passthrough driver
1222device		sg		#Linux SCSI passthrough
1223
1224# CAM OPTIONS:
1225# debugging options:
1226# -- NOTE --  If you specify one of the bus/target/lun options, you must
1227#             specify them all!
1228# CAMDEBUG: When defined enables debugging macros
1229# CAM_DEBUG_BUS:  Debug the given bus.  Use -1 to debug all busses.
1230# CAM_DEBUG_TARGET:  Debug the given target.  Use -1 to debug all targets.
1231# CAM_DEBUG_LUN:  Debug the given lun.  Use -1 to debug all luns.
1232# CAM_DEBUG_FLAGS:  OR together CAM_DEBUG_INFO, CAM_DEBUG_TRACE,
1233#                   CAM_DEBUG_SUBTRACE, and CAM_DEBUG_CDB
1234#
1235# CAM_MAX_HIGHPOWER: Maximum number of concurrent high power (start unit) cmds
1236# SCSI_NO_SENSE_STRINGS: When defined disables sense descriptions
1237# SCSI_NO_OP_STRINGS: When defined disables opcode descriptions
1238# SCSI_DELAY: The number of MILLISECONDS to freeze the SIM (scsi adapter)
1239#             queue after a bus reset, and the number of milliseconds to
1240#             freeze the device queue after a bus device reset.  This
1241#             can be changed at boot and runtime with the
1242#             kern.cam.scsi_delay tunable/sysctl.
1243options 	CAMDEBUG
1244options 	CAM_DEBUG_BUS=-1
1245options 	CAM_DEBUG_TARGET=-1
1246options 	CAM_DEBUG_LUN=-1
1247options 	CAM_DEBUG_FLAGS=(CAM_DEBUG_INFO|CAM_DEBUG_TRACE|CAM_DEBUG_CDB)
1248options 	CAM_MAX_HIGHPOWER=4
1249options 	SCSI_NO_SENSE_STRINGS
1250options 	SCSI_NO_OP_STRINGS
1251options 	SCSI_DELAY=5000	# Be pessimistic about Joe SCSI device
1252
1253# Options for the CAM CDROM driver:
1254# CHANGER_MIN_BUSY_SECONDS: Guaranteed minimum time quantum for a changer LUN
1255# CHANGER_MAX_BUSY_SECONDS: Maximum time quantum per changer LUN, only
1256#                           enforced if there is I/O waiting for another LUN
1257# The compiled in defaults for these variables are 2 and 10 seconds,
1258# respectively.
1259#
1260# These can also be changed on the fly with the following sysctl variables:
1261# kern.cam.cd.changer.min_busy_seconds
1262# kern.cam.cd.changer.max_busy_seconds
1263#
1264options 	CHANGER_MIN_BUSY_SECONDS=2
1265options 	CHANGER_MAX_BUSY_SECONDS=10
1266
1267# Options for the CAM sequential access driver:
1268# SA_IO_TIMEOUT: Timeout for read/write/wfm  operations, in minutes
1269# SA_SPACE_TIMEOUT: Timeout for space operations, in minutes
1270# SA_REWIND_TIMEOUT: Timeout for rewind operations, in minutes
1271# SA_ERASE_TIMEOUT: Timeout for erase operations, in minutes
1272# SA_1FM_AT_EOD: Default to model which only has a default one filemark at EOT.
1273options 	SA_IO_TIMEOUT=4
1274options 	SA_SPACE_TIMEOUT=60
1275options 	SA_REWIND_TIMEOUT=(2*60)
1276options 	SA_ERASE_TIMEOUT=(4*60)
1277options 	SA_1FM_AT_EOD
1278
1279# Optional timeout for the CAM processor target (pt) device
1280# This is specified in seconds.  The default is 60 seconds.
1281options 	SCSI_PT_DEFAULT_TIMEOUT=60
1282
1283# Optional enable of doing SES passthrough on other devices (e.g., disks)
1284#
1285# Normally disabled because a lot of newer SCSI disks report themselves
1286# as having SES capabilities, but this can then clot up attempts to build
1287# build a topology with the SES device that's on the box these drives
1288# are in....
1289options 	SES_ENABLE_PASSTHROUGH
1290
1291
1292#####################################################################
1293# MISCELLANEOUS DEVICES AND OPTIONS
1294
1295# The `pty' device usually turns out to be ``effectively mandatory'',
1296# as it is required for `telnetd', `rlogind', `screen', `emacs', and
1297# `xterm', among others.
1298
1299device		pty		#Pseudo ttys
1300device		nmdm		#back-to-back tty devices
1301device		md		#Memory/malloc disk
1302device		snp		#Snoop device - to look at pty/vty/etc..
1303device		ccd		#Concatenated disk driver
1304device		firmware	#firmware(9) support
1305
1306# Kernel side iconv library
1307options 	LIBICONV
1308
1309# Size of the kernel message buffer.  Should be N * pagesize.
1310options 	MSGBUF_SIZE=40960
1311
1312# Maximum size of a tty or pty input buffer.
1313options 	TTYHOG=8193
1314
1315
1316#####################################################################
1317# HARDWARE DEVICE CONFIGURATION
1318
1319# For ISA the required hints are listed.
1320# EISA, MCA, PCI, CardBus, SD/MMC and pccard are self identifying buses, so
1321# no hints are needed.
1322
1323#
1324# Mandatory devices:
1325#
1326
1327# These options are valid for other keyboard drivers as well.
1328options 	KBD_DISABLE_KEYMAP_LOAD	# refuse to load a keymap
1329options 	KBD_INSTALL_CDEV	# install a CDEV entry in /dev
1330
1331options 	FB_DEBUG		# Frame buffer debugging
1332
1333device		splash			# Splash screen and screen saver support
1334
1335# Various screen savers.
1336device		blank_saver
1337device		daemon_saver
1338device		dragon_saver
1339device		fade_saver
1340device		fire_saver
1341device		green_saver
1342device		logo_saver
1343device		rain_saver
1344device		snake_saver
1345device		star_saver
1346device		warp_saver
1347
1348# The syscons console driver (SCO color console compatible).
1349device		sc
1350hint.sc.0.at="isa"
1351options 	MAXCONS=16		# number of virtual consoles
1352options 	SC_ALT_MOUSE_IMAGE	# simplified mouse cursor in text mode
1353options 	SC_DFLT_FONT		# compile font in
1354makeoptions	SC_DFLT_FONT=cp850
1355options 	SC_DISABLE_KDBKEY	# disable `debug' key
1356options 	SC_DISABLE_REBOOT	# disable reboot key sequence
1357options 	SC_HISTORY_SIZE=200	# number of history buffer lines
1358options 	SC_MOUSE_CHAR=0x3	# char code for text mode mouse cursor
1359options 	SC_PIXEL_MODE		# add support for the raster text mode
1360
1361# The following options will let you change the default colors of syscons.
1362options 	SC_NORM_ATTR=(FG_GREEN|BG_BLACK)
1363options 	SC_NORM_REV_ATTR=(FG_YELLOW|BG_GREEN)
1364options 	SC_KERNEL_CONS_ATTR=(FG_RED|BG_BLACK)
1365options 	SC_KERNEL_CONS_REV_ATTR=(FG_BLACK|BG_RED)
1366
1367# The following options will let you change the default behaviour of
1368# cut-n-paste feature
1369options 	SC_CUT_SPACES2TABS	# convert leading spaces into tabs
1370options 	SC_CUT_SEPCHARS=\"x09\"	# set of characters that delimit words
1371					# (default is single space - \"x20\")
1372
1373# If you have a two button mouse, you may want to add the following option
1374# to use the right button of the mouse to paste text.
1375options 	SC_TWOBUTTON_MOUSE
1376
1377# You can selectively disable features in syscons.
1378options 	SC_NO_CUTPASTE
1379options 	SC_NO_FONT_LOADING
1380options 	SC_NO_HISTORY
1381options 	SC_NO_MODE_CHANGE
1382options 	SC_NO_SYSMOUSE
1383options 	SC_NO_SUSPEND_VTYSWITCH
1384
1385# `flags' for sc
1386#	0x80	Put the video card in the VESA 800x600 dots, 16 color mode
1387#	0x100	Probe for a keyboard device periodically if one is not present
1388
1389#
1390# Optional devices:
1391#
1392
1393#
1394# SCSI host adapters:
1395#
1396# adv: All Narrow SCSI bus AdvanSys controllers.
1397# adw: Second Generation AdvanSys controllers including the ADV940UW.
1398# aha: Adaptec 154x/1535/1640
1399# ahb: Adaptec 174x EISA controllers
1400# ahc: Adaptec 274x/284x/2910/293x/294x/394x/3950x/3960x/398X/4944/
1401#      19160x/29160x, aic7770/aic78xx
1402# ahd: Adaptec 29320/39320 Controllers.
1403# aic: Adaptec 6260/6360, APA-1460 (PC Card), NEC PC9801-100 (C-BUS)
1404# amd: Support for the AMD 53C974 SCSI host adapter chip as found on devices
1405#      such as the Tekram DC-390(T).
1406# bt:  Most Buslogic controllers: including BT-445, BT-54x, BT-64x, BT-74x,
1407#      BT-75x, BT-946, BT-948, BT-956, BT-958, SDC3211B, SDC3211F, SDC3222F
1408# esp: NCR53c9x.  Only for SBUS hardware right now.
1409# isp: Qlogic ISP 1020, 1040 and 1040B PCI SCSI host adapters,
1410#      ISP 1240 Dual Ultra SCSI, ISP 1080 and 1280 (Dual) Ultra2,
1411#      ISP 12160 Ultra3 SCSI,
1412#      Qlogic ISP 2100 and ISP 2200 1Gb Fibre Channel host adapters.
1413#      Qlogic ISP 2300 and ISP 2312 2Gb Fibre Channel host adapters.
1414#      Qlogic ISP 2322 and ISP 6322 2Gb Fibre Channel host adapters.
1415# ispfw: Firmware module for Qlogic host adapters
1416# mpt: LSI-Logic MPT/Fusion 53c1020 or 53c1030 Ultra4
1417#      or FC9x9 Fibre Channel host adapters.
1418# ncr: NCR 53C810, 53C825 self-contained SCSI host adapters.
1419# sym: Symbios/Logic 53C8XX family of PCI-SCSI I/O processors:
1420#      53C810, 53C810A, 53C815, 53C825,  53C825A, 53C860, 53C875,
1421#      53C876, 53C885,  53C895, 53C895A, 53C896,  53C897, 53C1510D,
1422#      53C1010-33, 53C1010-66.
1423# trm: Tekram DC395U/UW/F DC315U adapters.
1424# wds: WD7000
1425
1426#
1427# Note that the order is important in order for Buslogic ISA/EISA cards to be
1428# probed correctly.
1429#
1430device		bt
1431hint.bt.0.at="isa"
1432hint.bt.0.port="0x330"
1433device		adv
1434hint.adv.0.at="isa"
1435device		adw
1436device		aha
1437hint.aha.0.at="isa"
1438device		aic
1439hint.aic.0.at="isa"
1440device		ahb
1441device		ahc
1442device		ahd
1443device		amd
1444device		esp
1445device		iscsi_initiator
1446device		isp
1447hint.isp.0.disable="1"
1448hint.isp.0.role="3"
1449hint.isp.0.prefer_iomap="1"
1450hint.isp.0.prefer_memmap="1"
1451hint.isp.0.fwload_disable="1"
1452hint.isp.0.ignore_nvram="1"
1453hint.isp.0.fullduplex="1"
1454hint.isp.0.topology="lport"
1455hint.isp.0.topology="nport"
1456hint.isp.0.topology="lport-only"
1457hint.isp.0.topology="nport-only"
1458# we can't get u_int64_t types, nor can we get strings if it's got
1459# a leading 0x, hence this silly dodge.
1460hint.isp.0.portwnn="w50000000aaaa0000"
1461hint.isp.0.nodewnn="w50000000aaaa0001"
1462device		ispfw
1463device		mpt
1464device		ncr
1465device		sym
1466device		trm
1467device		wds
1468hint.wds.0.at="isa"
1469hint.wds.0.port="0x350"
1470hint.wds.0.irq="11"
1471hint.wds.0.drq="6"
1472
1473# The aic7xxx driver will attempt to use memory mapped I/O for all PCI
1474# controllers that have it configured only if this option is set. Unfortunately,
1475# this doesn't work on some motherboards, which prevents it from being the
1476# default.
1477options 	AHC_ALLOW_MEMIO
1478
1479# Dump the contents of the ahc controller configuration PROM.
1480options 	AHC_DUMP_EEPROM
1481
1482# Bitmap of units to enable targetmode operations.
1483options 	AHC_TMODE_ENABLE
1484
1485# Compile in Aic7xxx Debugging code.
1486options 	AHC_DEBUG
1487
1488# Aic7xxx driver debugging options. See sys/dev/aic7xxx/aic7xxx.h
1489options 	AHC_DEBUG_OPTS
1490
1491# Print register bitfields in debug output.  Adds ~128k to driver
1492# See ahc(4).
1493options 	AHC_REG_PRETTY_PRINT
1494
1495# Compile in aic79xx debugging code.
1496options 	AHD_DEBUG
1497
1498# Aic79xx driver debugging options.  Adds ~215k to driver.  See ahd(4).
1499options 	AHD_DEBUG_OPTS=0xFFFFFFFF
1500
1501# Print human-readable register definitions when debugging
1502options 	AHD_REG_PRETTY_PRINT
1503
1504# Bitmap of units to enable targetmode operations.
1505options 	AHD_TMODE_ENABLE
1506
1507# The adw driver will attempt to use memory mapped I/O for all PCI
1508# controllers that have it configured only if this option is set.
1509options 	ADW_ALLOW_MEMIO
1510
1511# Options used in dev/iscsi (Software iSCSI stack)
1512#
1513options		ISCSI_INITIATOR_DEBUG=9
1514
1515# Options used in dev/isp/ (Qlogic SCSI/FC driver).
1516#
1517#	ISP_TARGET_MODE		-	enable target mode operation
1518#
1519options 	ISP_TARGET_MODE=1
1520#
1521#	ISP_DEFAULT_ROLES	-	default role
1522#		none=0
1523#		target=1
1524#		initiator=2
1525#		both=3			(not supported currently)
1526#
1527options 	ISP_DEFAULT_ROLES=2
1528
1529# Options used in dev/sym/ (Symbios SCSI driver).
1530#options 	SYM_SETUP_LP_PROBE_MAP	#-Low Priority Probe Map (bits)
1531					# Allows the ncr to take precedence
1532					# 1 (1<<0) -> 810a, 860
1533					# 2 (1<<1) -> 825a, 875, 885, 895
1534					# 4 (1<<2) -> 895a, 896, 1510d
1535#options 	SYM_SETUP_SCSI_DIFF	#-HVD support for 825a, 875, 885
1536					# disabled:0 (default), enabled:1
1537#options 	SYM_SETUP_PCI_PARITY	#-PCI parity checking
1538					# disabled:0, enabled:1 (default)
1539#options 	SYM_SETUP_MAX_LUN	#-Number of LUNs supported
1540					# default:8, range:[1..64]
1541
1542# The 'dpt' driver provides support for old DPT controllers (http://www.dpt.com/).
1543# These have hardware RAID-{0,1,5} support, and do multi-initiator I/O.
1544# The DPT controllers are commonly re-licensed under other brand-names -
1545# some controllers by Olivetti, Dec, HP, AT&T, SNI, AST, Alphatronic, NEC and
1546# Compaq are actually DPT controllers.
1547#
1548# See src/sys/dev/dpt for debugging and other subtle options.
1549#   DPT_MEASURE_PERFORMANCE Enables a set of (semi)invasive metrics. Various
1550#                           instruments are enabled.  The tools in
1551#                           /usr/sbin/dpt_* assume these to be enabled.
1552#   DPT_HANDLE_TIMEOUTS     Normally device timeouts are handled by the DPT.
1553#                           If you ant the driver to handle timeouts, enable
1554#                           this option.  If your system is very busy, this
1555#                           option will create more trouble than solve.
1556#   DPT_TIMEOUT_FACTOR      Used to compute the excessive amount of time to
1557#                           wait when timing out with the above option.
1558#  DPT_DEBUG_xxxx           These are controllable from sys/dev/dpt/dpt.h
1559#  DPT_LOST_IRQ             When enabled, will try, once per second, to catch
1560#                           any interrupt that got lost.  Seems to help in some
1561#                           DPT-firmware/Motherboard combinations.  Minimal
1562#                           cost, great benefit.
1563#  DPT_RESET_HBA            Make "reset" actually reset the controller
1564#                           instead of fudging it.  Only enable this if you
1565#			    are 100% certain you need it.
1566
1567device		dpt
1568
1569# DPT options
1570#!CAM# options 	DPT_MEASURE_PERFORMANCE
1571#!CAM# options 	DPT_HANDLE_TIMEOUTS
1572options 	DPT_TIMEOUT_FACTOR=4
1573options 	DPT_LOST_IRQ
1574options 	DPT_RESET_HBA
1575
1576#
1577# Compaq "CISS" RAID controllers (SmartRAID 5* series)
1578# These controllers have a SCSI-like interface, and require the
1579# CAM infrastructure.
1580#
1581device		ciss
1582
1583#
1584# Intel Integrated RAID controllers.
1585# This driver was developed and is maintained by Intel.  Contacts
1586# at Intel for this driver are
1587# "Kannanthanam, Boji T" <boji.t.kannanthanam@intel.com> and
1588# "Leubner, Achim" <achim.leubner@intel.com>.
1589#
1590device		iir
1591
1592#
1593# Mylex AcceleRAID and eXtremeRAID controllers with v6 and later
1594# firmware.  These controllers have a SCSI-like interface, and require
1595# the CAM infrastructure.
1596#
1597device		mly
1598
1599#
1600# Compaq Smart RAID, Mylex DAC960 and AMI MegaRAID controllers.  Only
1601# one entry is needed; the code will find and configure all supported
1602# controllers.
1603#
1604device		ida		# Compaq Smart RAID
1605device		mlx		# Mylex DAC960
1606device		amr		# AMI MegaRAID
1607device		mfi		# LSI MegaRAID SAS
1608device		mfip		# LSI MegaRAID SAS passthrough, requires CAM
1609options 	MFI_DEBUG
1610
1611#
1612# 3ware ATA RAID
1613#
1614device		twe		# 3ware ATA RAID
1615
1616#
1617# The 'ATA' driver supports all ATA and ATAPI devices, including PC Card
1618# devices. You only need one "device ata" for it to find all
1619# PCI and PC Card ATA/ATAPI devices on modern machines.
1620device		ata
1621device		atadisk		# ATA disk drives
1622device		ataraid		# ATA RAID drives
1623device		atapicd		# ATAPI CDROM drives
1624device		atapifd		# ATAPI floppy drives
1625device		atapist		# ATAPI tape drives
1626device		atapicam	# emulate ATAPI devices as SCSI ditto via CAM
1627				# needs CAM to be present (scbus & pass)
1628#
1629# For older non-PCI, non-PnPBIOS systems, these are the hints lines to add:
1630hint.ata.0.at="isa"
1631hint.ata.0.port="0x1f0"
1632hint.ata.0.irq="14"
1633hint.ata.1.at="isa"
1634hint.ata.1.port="0x170"
1635hint.ata.1.irq="15"
1636
1637#
1638# The following options are valid on the ATA driver:
1639#
1640# ATA_STATIC_ID:	controller numbering is static ie depends on location
1641#			else the device numbers are dynamically allocated.
1642
1643options 	ATA_STATIC_ID
1644
1645#
1646# Standard floppy disk controllers and floppy tapes, supports
1647# the Y-E DATA External FDD (PC Card)
1648#
1649device		fdc
1650hint.fdc.0.at="isa"
1651hint.fdc.0.port="0x3F0"
1652hint.fdc.0.irq="6"
1653hint.fdc.0.drq="2"
1654#
1655# FDC_DEBUG enables floppy debugging.  Since the debug output is huge, you
1656# gotta turn it actually on by setting the variable fd_debug with DDB,
1657# however.
1658options 	FDC_DEBUG
1659#
1660# Activate this line if you happen to have an Insight floppy tape.
1661# Probing them proved to be dangerous for people with floppy disks only,
1662# so it's "hidden" behind a flag:
1663#hint.fdc.0.flags="1"
1664
1665# Specify floppy devices
1666hint.fd.0.at="fdc0"
1667hint.fd.0.drive="0"
1668hint.fd.1.at="fdc0"
1669hint.fd.1.drive="1"
1670
1671#
1672# uart: newbusified driver for serial interfaces.  It consolidates the sio(4),
1673#	sab(4) and zs(4) drivers.
1674#
1675device		uart
1676
1677# Options for uart(4)
1678options 	UART_PPS_ON_CTS		# Do time pulse capturing using CTS
1679					# instead of DCD.
1680
1681# The following hint should only be used for pure ISA devices.  It is not
1682# needed otherwise.  Use of hints is strongly discouraged.
1683hint.uart.0.at="isa"
1684
1685# The following 3 hints are used when the UART is a system device (i.e., a
1686# console or debug port), but only on platforms that don't have any other
1687# means to pass the information to the kernel.  The unit number of the hint
1688# is only used to bundle the hints together.  There is no relation to the
1689# unit number of the probed UART.
1690hint.uart.0.port="0x3f8"
1691hint.uart.0.flags="0x10"
1692hint.uart.0.baud="115200"
1693
1694# `flags' for serial drivers that support consoles like sio(4) and uart(4):
1695#	0x10	enable console support for this unit.  Other console flags
1696#		(if applicable) are ignored unless this is set.  Enabling
1697#		console support does not make the unit the preferred console.
1698#		Boot with -h or set boot_serial=YES in the loader.  For sio(4)
1699#		specifically, the 0x20 flag can also be set (see above).
1700#		Currently, at most one unit can have console support; the
1701#		first one (in config file order) with this flag set is
1702#		preferred.  Setting this flag for sio0 gives the old behaviour.
1703#	0x80	use this port for serial line gdb support in ddb.  Also known
1704#		as debug port.
1705#
1706
1707# Options for serial drivers that support consoles:
1708options 	BREAK_TO_DEBUGGER	# A BREAK on a serial console goes to
1709					# ddb, if available.
1710
1711# Solaris implements a new BREAK which is initiated by a character
1712# sequence CR ~ ^b which is similar to a familiar pattern used on
1713# Sun servers by the Remote Console.
1714options 	ALT_BREAK_TO_DEBUGGER
1715
1716# Serial Communications Controller
1717# Supports the Siemens SAB 82532 and Zilog Z8530 multi-channel
1718# communications controllers.
1719device		scc
1720
1721# PCI Universal Communications driver
1722# Supports various multi port PCI I/O cards.
1723device		puc
1724
1725#
1726# Network interfaces:
1727#
1728# MII bus support is required for some PCI 10/100 ethernet NICs,
1729# namely those which use MII-compliant transceivers or implement
1730# transceiver control interfaces that operate like an MII. Adding
1731# "device miibus0" to the kernel config pulls in support for
1732# the generic miibus API and all of the PHY drivers, including a
1733# generic one for PHYs that aren't specifically handled by an
1734# individual driver.
1735device		miibus
1736
1737# an:   Aironet 4500/4800 802.11 wireless adapters. Supports the PCMCIA,
1738#       PCI and ISA varieties.
1739# awi:  Support for IEEE 802.11 PC Card devices using the AMD Am79C930 and
1740#       Harris (Intersil) Chipset with PCnetMobile firmware by AMD.
1741# bce:	Broadcom NetXtreme II (BCM5706/BCM5708) PCI/PCIe Gigabit Ethernet
1742#       adapters.
1743# bfe:	Broadcom BCM4401 Ethernet adapter.
1744# bge:	Support for gigabit ethernet adapters based on the Broadcom
1745#	BCM570x family of controllers, including the 3Com 3c996-T,
1746#	the Netgear GA302T, the SysKonnect SK-9D21 and SK-9D41, and
1747#	the embedded gigE NICs on Dell PowerEdge 2550 servers.
1748# cm:	Arcnet SMC COM90c26 / SMC COM90c56
1749#	(and SMC COM90c66 in '56 compatibility mode) adapters.
1750# cnw:  Xircom CNW/Netware Airsurfer PC Card adapter
1751# dc:   Support for PCI fast ethernet adapters based on the DEC/Intel 21143
1752#       and various workalikes including:
1753#       the ADMtek AL981 Comet and AN985 Centaur, the ASIX Electronics
1754#       AX88140A and AX88141, the Davicom DM9100 and DM9102, the Lite-On
1755#       82c168 and 82c169 PNIC, the Lite-On/Macronix LC82C115 PNIC II
1756#       and the Macronix 98713/98713A/98715/98715A/98725 PMAC. This driver
1757#       replaces the old al, ax, dm, pn and mx drivers.  List of brands:
1758#       Digital DE500-BA, Kingston KNE100TX, D-Link DFE-570TX, SOHOware SFA110,
1759#       SVEC PN102-TX, CNet Pro110B, 120A, and 120B, Compex RL100-TX,
1760#       LinkSys LNE100TX, LNE100TX V2.0, Jaton XpressNet, Alfa Inc GFC2204,
1761#       KNE110TX.
1762# de:   Digital Equipment DC21040
1763# em:   Intel Pro/1000 Gigabit Ethernet 82542, 82543, 82544 based adapters.
1764# ep:   3Com 3C509, 3C529, 3C556, 3C562D, 3C563D, 3C572, 3C574X, 3C579, 3C589
1765#       and PC Card devices using these chipsets.
1766# ex:   Intel EtherExpress Pro/10 and other i82595-based adapters,
1767#       Olicom Ethernet PC Card devices.
1768# fe:   Fujitsu MB86960A/MB86965A Ethernet
1769# fea:  DEC DEFEA EISA FDDI adapter
1770# fpa:  Support for the Digital DEFPA PCI FDDI. `device fddi' is also needed.
1771# fxp:  Intel EtherExpress Pro/100B
1772#	(hint of prefer_iomap can be done to prefer I/O instead of Mem mapping)
1773# gem:  Apple GMAC/Sun ERI/Sun GEM
1774# hme:  Sun HME (Happy Meal Ethernet)
1775# le:   AMD Am7900 LANCE and Am79C9xx PCnet
1776# lge:	Support for PCI gigabit ethernet adapters based on the Level 1
1777#	LXT1001 NetCellerator chipset. This includes the D-Link DGE-500SX,
1778#	SMC TigerCard 1000 (SMC9462SX), and some Addtron cards.
1779# msk:	Support for gigabit ethernet adapters based on the Marvell/SysKonnect
1780#	Yukon II Gigabit controllers, including 88E8021, 88E8022, 88E8061,
1781#	88E8062, 88E8035, 88E8036, 88E8038, 88E8050, 88E8052, 88E8053,
1782#	88E8055, 88E8056 and D-Link 560T/550SX.
1783# lmc:	Support for the LMC/SBE wide-area network interface cards.
1784# my:	Myson Fast Ethernet (MTD80X, MTD89X)
1785# nge:	Support for PCI gigabit ethernet adapters based on the National
1786#	Semiconductor DP83820 and DP83821 chipset. This includes the
1787#	SMC EZ Card 1000 (SMC9462TX), D-Link DGE-500T, Asante FriendlyNet
1788#	GigaNIX 1000TA and 1000TPC, the Addtron AEG320T, the Surecom
1789#	EP-320G-TX and the Netgear GA622T.
1790# pcn:	Support for PCI fast ethernet adapters based on the AMD Am79c97x
1791#	PCnet-FAST, PCnet-FAST+, PCnet-FAST III, PCnet-PRO and PCnet-Home
1792#	chipsets. These can also be handled by the le(4) driver if the
1793#	pcn(4) driver is left out of the kernel. The le(4) driver does not
1794#	support the additional features like the MII bus and burst mode of
1795#	the PCnet-FAST and greater chipsets though.
1796# rl:   Support for PCI fast ethernet adapters based on the RealTek 8129/8139
1797#       chipset.  Note that the RealTek driver defaults to using programmed
1798#       I/O to do register accesses because memory mapped mode seems to cause
1799#       severe lockups on SMP hardware.  This driver also supports the
1800#       Accton EN1207D `Cheetah' adapter, which uses a chip called
1801#       the MPX 5030/5038, which is either a RealTek in disguise or a
1802#       RealTek workalike.  Note that the D-Link DFE-530TX+ uses the RealTek
1803#       chipset and is supported by this driver, not the 'vr' driver.
1804# sf:   Support for Adaptec Duralink PCI fast ethernet adapters based on the
1805#       Adaptec AIC-6915 "starfire" controller.
1806#       This includes dual and quad port cards, as well as one 100baseFX card.
1807#       Most of these are 64-bit PCI devices, except for one single port
1808#       card which is 32-bit.
1809# sis:  Support for NICs based on the Silicon Integrated Systems SiS 900,
1810#       SiS 7016 and NS DP83815 PCI fast ethernet controller chips.
1811# sbsh:	Support for Granch SBNI16 SHDSL modem PCI adapters
1812# sk:   Support for the SysKonnect SK-984x series PCI gigabit ethernet NICs.
1813#       This includes the SK-9841 and SK-9842 single port cards (single mode
1814#       and multimode fiber) and the SK-9843 and SK-9844 dual port cards
1815#       (also single mode and multimode).
1816#       The driver will autodetect the number of ports on the card and
1817#       attach each one as a separate network interface.
1818# sn:   Support for ISA and PC Card Ethernet devices using the
1819#       SMC91C90/92/94/95 chips.
1820# ste:  Sundance Technologies ST201 PCI fast ethernet controller, includes
1821#       the D-Link DFE-550TX.
1822# stge: Support for gigabit ethernet adapters based on the Sundance/Tamarack
1823#       TC9021 family of controllers, including the Sundance ST2021/ST2023,
1824#       the Sundance/Tamarack TC9021, the D-Link DL-4000 and ASUS NX1101.
1825# ti:   Support for PCI gigabit ethernet NICs based on the Alteon Networks
1826#       Tigon 1 and Tigon 2 chipsets.  This includes the Alteon AceNIC, the
1827#       3Com 3c985, the Netgear GA620 and various others.  Note that you will
1828#       probably want to bump up kern.ipc.nmbclusters a lot to use this driver.
1829# tl:   Support for the Texas Instruments TNETE100 series 'ThunderLAN'
1830#       cards and integrated ethernet controllers.  This includes several
1831#       Compaq Netelligent 10/100 cards and the built-in ethernet controllers
1832#       in several Compaq Prosignia, Proliant and Deskpro systems.  It also
1833#       supports several Olicom 10Mbps and 10/100 boards.
1834# tx:   SMC 9432 TX, BTX and FTX cards. (SMC EtherPower II series)
1835# txp:	Support for 3Com 3cR990 cards with the "Typhoon" chipset
1836# vr:   Support for various fast ethernet adapters based on the VIA
1837#       Technologies VT3043 `Rhine I' and VT86C100A `Rhine II' chips,
1838#       including the D-Link DFE530TX (see 'rl' for DFE530TX+), the Hawking
1839#       Technologies PN102TX, and the AOpen/Acer ALN-320.
1840# vx:   3Com 3C590 and 3C595
1841# wb:   Support for fast ethernet adapters based on the Winbond W89C840F chip.
1842#       Note: this is not the same as the Winbond W89C940F, which is a
1843#       NE2000 clone.
1844# wi:   Lucent WaveLAN/IEEE 802.11 PCMCIA adapters. Note: this supports both
1845#       the PCMCIA and ISA cards: the ISA card is really a PCMCIA to ISA
1846#       bridge with a PCMCIA adapter plugged into it.
1847# xe:   Xircom/Intel EtherExpress Pro100/16 PC Card ethernet controller,
1848#       Accton Fast EtherCard-16, Compaq Netelligent 10/100 PC Card,
1849#       Toshiba 10/100 Ethernet PC Card, Xircom 16-bit Ethernet + Modem 56
1850# xl:   Support for the 3Com 3c900, 3c905, 3c905B and 3c905C (Fast)
1851#       Etherlink XL cards and integrated controllers.  This includes the
1852#       integrated 3c905B-TX chips in certain Dell Optiplex and Dell
1853#       Precision desktop machines and the integrated 3c905-TX chips
1854#       in Dell Latitude laptop docking stations.
1855#       Also supported: 3Com 3c980(C)-TX, 3Com 3cSOHO100-TX, 3Com 3c450-TX
1856
1857# Order for ISA/EISA devices is important here
1858
1859device		cm
1860hint.cm.0.at="isa"
1861hint.cm.0.port="0x2e0"
1862hint.cm.0.irq="9"
1863hint.cm.0.maddr="0xdc000"
1864device		ep
1865device		ex
1866device		fe
1867hint.fe.0.at="isa"
1868hint.fe.0.port="0x300"
1869device		fea
1870device		sn
1871hint.sn.0.at="isa"
1872hint.sn.0.port="0x300"
1873hint.sn.0.irq="10"
1874device		an
1875device		awi
1876device		cnw
1877device		wi
1878device		xe
1879
1880# PCI Ethernet NICs that use the common MII bus controller code.
1881device		bce		# Broadcom BCM5706/BCM5708 Gigabit Ethernet
1882device		bfe		# Broadcom BCM440x 10/100 Ethernet
1883device		bge		# Broadcom BCM570xx Gigabit Ethernet
1884device		cxgb		# Chelsio T3 10 Gigabit Ethernet
1885device		dc		# DEC/Intel 21143 and various workalikes
1886device		fxp		# Intel EtherExpress PRO/100B (82557, 82558)
1887hint.fxp.0.prefer_iomap="0"
1888device		gem		# Apple GMAC/Sun ERI/Sun GEM
1889device		hme		# Sun HME (Happy Meal Ethernet)
1890device		lge		# Level 1 LXT1001 gigabit Ethernet
1891device		my		# Myson Fast Ethernet (MTD80X, MTD89X)
1892device		nge		# NatSemi DP83820 gigabit Ethernet
1893device		rl		# RealTek 8129/8139
1894device		pcn		# AMD Am79C97x PCI 10/100 NICs
1895device		sf		# Adaptec AIC-6915 (``Starfire'')
1896device		sbsh		# Granch SBNI16 SHDSL modem
1897device		sis		# Silicon Integrated Systems SiS 900/SiS 7016
1898device		sk		# SysKonnect SK-984x & SK-982x gigabit Ethernet
1899device		ste		# Sundance ST201 (D-Link DFE-550TX)
1900device		ti		# Alteon Networks Tigon I/II gigabit Ethernet
1901device		tl		# Texas Instruments ThunderLAN
1902device		tx		# SMC EtherPower II (83c170 ``EPIC'')
1903device		vr		# VIA Rhine, Rhine II
1904device		wb		# Winbond W89C840F
1905device		xl		# 3Com 3c90x (``Boomerang'', ``Cyclone'')
1906
1907# PCI Ethernet NICs.
1908device		de		# DEC/Intel DC21x4x (``Tulip'')
1909device		le		# AMD Am7900 LANCE and Am79C9xx PCnet
1910device		mxge		# Myricom Myri-10G 10GbE NIC
1911device		nxge		# Neterion Xframe 10GbE Server/Storage Adapter
1912device		txp		# 3Com 3cR990 (``Typhoon'')
1913device		vx		# 3Com 3c590, 3c595 (``Vortex'')
1914
1915# PCI FDDI NICs.
1916device		fpa
1917
1918# PCI WAN adapters.
1919device		lmc
1920
1921# Use "private" jumbo buffers allocated exclusively for the ti(4) driver.
1922# This option is incompatible with the TI_JUMBO_HDRSPLIT option below.
1923#options 	TI_PRIVATE_JUMBOS
1924# Turn on the header splitting option for the ti(4) driver firmware.  This
1925# only works for Tigon II chips, and has no effect for Tigon I chips.
1926options 	TI_JUMBO_HDRSPLIT
1927
1928# These two options allow manipulating the mbuf cluster size and mbuf size,
1929# respectively.  Be very careful with NIC driver modules when changing
1930# these from their default values, because that can potentially cause a
1931# mismatch between the mbuf size assumed by the kernel and the mbuf size
1932# assumed by a module.  The only driver that currently has the ability to
1933# detect a mismatch is ti(4).
1934options 	MCLSHIFT=12	# mbuf cluster shift in bits, 12 == 4KB
1935options 	MSIZE=512	# mbuf size in bytes
1936
1937#
1938# ATM related options (Cranor version)
1939# (note: this driver cannot be used with the HARP ATM stack)
1940#
1941# The `en' device provides support for Efficient Networks (ENI)
1942# ENI-155 PCI midway cards, and the Adaptec 155Mbps PCI ATM cards (ANA-59x0).
1943#
1944# The `hatm' device provides support for Fore/Marconi HE155 and HE622
1945# ATM PCI cards.
1946#
1947# The `fatm' device provides support for Fore PCA200E ATM PCI cards.
1948#
1949# The `patm' device provides support for IDT77252 based cards like
1950# ProSum's ProATM-155 and ProATM-25 and IDT's evaluation boards.
1951#
1952# atm device provides generic atm functions and is required for
1953# atm devices.
1954# NATM enables the netnatm protocol family that can be used to
1955# bypass TCP/IP.
1956#
1957# utopia provides the access to the ATM PHY chips and is required for en,
1958# hatm and fatm.
1959#
1960# the current driver supports only PVC operations (no atm-arp, no multicast).
1961# for more details, please read the original documents at
1962# http://www.ccrc.wustl.edu/pub/chuck/tech/bsdatm/bsdatm.html
1963#
1964device		atm
1965device		en
1966device		fatm			#Fore PCA200E
1967device		hatm			#Fore/Marconi HE155/622
1968device		patm			#IDT77252 cards (ProATM and IDT)
1969device		utopia			#ATM PHY driver
1970options 	NATM			#native ATM
1971
1972options 	LIBMBPOOL		#needed by patm, iatm
1973
1974#
1975# Sound drivers
1976#
1977# sound: The generic sound driver.
1978#
1979
1980device		sound
1981
1982#
1983# snd_*: Device-specific drivers.
1984#
1985# The flags of the device tells the device a bit more info about the
1986# device that normally is obtained through the PnP interface.
1987#	bit  2..0   secondary DMA channel;
1988#	bit  4      set if the board uses two dma channels;
1989#	bit 15..8   board type, overrides autodetection; leave it
1990#		    zero if don't know what to put in (and you don't,
1991#		    since this is unsupported at the moment...).
1992#
1993# snd_ad1816:		Analog Devices AD1816 ISA PnP/non-PnP.
1994# snd_als4000:		Avance Logic ALS4000 PCI.
1995# snd_atiixp:		ATI IXP 200/300/400 PCI.
1996# snd_au88x0		Aureal Vortex 1/2/Advantage PCI. This driver
1997#			lacks support for playback and recording.
1998# snd_audiocs:		Crystal Semiconductor CS4231 SBus/EBus. Only
1999#			for sparc64.
2000# snd_cmi:		CMedia CMI8338/CMI8738 PCI.
2001# snd_cs4281:		Crystal Semiconductor CS4281 PCI.
2002# snd_csa:		Crystal Semiconductor CS461x/428x PCI. (except
2003#			4281)
2004# snd_ds1:		Yamaha DS-1 PCI.
2005# snd_emu10k1:		Creative EMU10K1 PCI and EMU10K2 (Audigy) PCI.
2006# snd_emu10kx:		Creative SoundBlaster Live! and Audigy
2007# snd_envy24:		VIA Envy24 and compatible, needs snd_spicds.
2008# snd_envy24ht:		VIA Envy24HT and compatible, needs snd_spicds.
2009# snd_es137x:		Ensoniq AudioPCI ES137x PCI.
2010# snd_ess:		Ensoniq ESS ISA PnP/non-PnP, to be used in
2011#			conjunction with snd_sbc.
2012# snd_fm801:		Forte Media FM801 PCI.
2013# snd_gusc:		Gravis UltraSound ISA PnP/non-PnP.
2014# snd_hda:		Intel High Definition Audio (Controller) and
2015#			compatible.
2016# snd_ich:		Intel ICH PCI and some more audio controllers
2017#			embedded in a chipset, for example nVidia
2018#			nForce controllers.
2019# snd_maestro:		ESS Technology Maestro-1/2x PCI.
2020# snd_maestro3:		ESS Technology Maestro-3/Allegro PCI.
2021# snd_mss:		Microsoft Sound System ISA PnP/non-PnP.
2022# snd_neomagic:		Neomagic 256 AV/ZX PCI.
2023# snd_sb16:		Creative SoundBlaster16, to be used in
2024#			conjunction with snd_sbc.
2025# snd_sb8:		Creative SoundBlaster (pre-16), to be used in
2026#			conjunction with snd_sbc.
2027# snd_sbc:		Creative SoundBlaster ISA PnP/non-PnP.
2028#			Supports ESS and Avance ISA chips as well.
2029# snd_spicds:		SPI codec driver, needed by Envy24/Envy24HT drivers.
2030# snd_solo:		ESS Solo-1x PCI.
2031# snd_t4dwave:		Trident 4DWave DX/NX PCI, Sis 7018 PCI and Acer Labs
2032#			M5451 PCI.
2033# snd_via8233:		VIA VT8233x PCI.
2034# snd_via82c686:	VIA VT82C686A PCI.
2035# snd_vibes:		S3 Sonicvibes PCI.
2036# snd_uaudio:		USB audio.
2037
2038device		snd_ad1816
2039device		snd_als4000
2040device		snd_atiixp
2041#device		snd_au88x0
2042#device		snd_audiocs
2043device		snd_cmi
2044device		snd_cs4281
2045device		snd_csa
2046device		snd_ds1
2047device		snd_emu10k1
2048device		snd_emu10kx
2049device		snd_envy24
2050device		snd_envy24ht
2051device		snd_es137x
2052device		snd_ess
2053device		snd_fm801
2054device		snd_gusc
2055device		snd_hda
2056device		snd_ich
2057device		snd_maestro
2058device		snd_maestro3
2059device		snd_mss
2060device		snd_neomagic
2061device		snd_sb16
2062device		snd_sb8
2063device		snd_sbc
2064device		snd_solo
2065device		snd_spicds
2066device		snd_t4dwave
2067device		snd_via8233
2068device		snd_via82c686
2069device		snd_vibes
2070device		snd_uaudio
2071
2072# For non-PnP sound cards:
2073hint.pcm.0.at="isa"
2074hint.pcm.0.irq="10"
2075hint.pcm.0.drq="1"
2076hint.pcm.0.flags="0x0"
2077hint.sbc.0.at="isa"
2078hint.sbc.0.port="0x220"
2079hint.sbc.0.irq="5"
2080hint.sbc.0.drq="1"
2081hint.sbc.0.flags="0x15"
2082hint.gusc.0.at="isa"
2083hint.gusc.0.port="0x220"
2084hint.gusc.0.irq="5"
2085hint.gusc.0.drq="1"
2086hint.gusc.0.flags="0x13"
2087
2088#
2089# IEEE-488 hardware:
2090# pcii:		PCIIA cards (uPD7210 based isa cards)
2091# tnt4882:	National Instruments PCI-GPIB card.
2092
2093device	pcii
2094hint.pcii.0.at="isa"
2095hint.pcii.0.port="0x2e1"
2096hint.pcii.0.irq="5"
2097hint.pcii.0.drq="1"
2098
2099device	tnt4882
2100
2101#
2102# Miscellaneous hardware:
2103#
2104# scd: Sony CD-ROM using proprietary (non-ATAPI) interface
2105# mcd: Mitsumi CD-ROM using proprietary (non-ATAPI) interface
2106# bktr: Brooktree bt848/848a/849a/878/879 video capture and TV Tuner board
2107# cy: Cyclades serial driver
2108# joy: joystick (including IO DATA PCJOY PC Card joystick)
2109# rc: RISCom/8 multiport card
2110# rp: Comtrol Rocketport(ISA/PCI) - single card
2111# si: Specialix SI/XIO 4-32 port terminal multiplexor
2112
2113# Notes on the Comtrol Rocketport driver:
2114#
2115# The exact values used for rp0 depend on how many boards you have
2116# in the system.  The manufacturer's sample configs are listed as:
2117#
2118#               device  rp	# core driver support
2119#
2120#   Comtrol Rocketport ISA single card
2121#		hint.rp.0.at="isa"
2122#		hint.rp.0.port="0x280"
2123#
2124#   If instead you have two ISA cards, one installed at 0x100 and the
2125#   second installed at 0x180, then you should add the following to
2126#   your kernel probe hints:
2127#		hint.rp.0.at="isa"
2128#		hint.rp.0.port="0x100"
2129#		hint.rp.1.at="isa"
2130#		hint.rp.1.port="0x180"
2131#
2132#   For 4 ISA cards, it might be something like this:
2133#		hint.rp.0.at="isa"
2134#		hint.rp.0.port="0x180"
2135#		hint.rp.1.at="isa"
2136#		hint.rp.1.port="0x100"
2137#		hint.rp.2.at="isa"
2138#		hint.rp.2.port="0x340"
2139#		hint.rp.3.at="isa"
2140#		hint.rp.3.port="0x240"
2141#
2142#   For PCI cards, you need no hints.
2143
2144# Mitsumi CD-ROM
2145device		mcd
2146hint.mcd.0.at="isa"
2147hint.mcd.0.port="0x300"
2148# for the Sony CDU31/33A CDROM
2149device		scd
2150hint.scd.0.at="isa"
2151hint.scd.0.port="0x230"
2152device		joy			# PnP aware, hints for non-PnP only
2153hint.joy.0.at="isa"
2154hint.joy.0.port="0x201"
2155device		rc
2156hint.rc.0.at="isa"
2157hint.rc.0.port="0x220"
2158hint.rc.0.irq="12"
2159device		rp
2160hint.rp.0.at="isa"
2161hint.rp.0.port="0x280"
2162device		si
2163options 	SI_DEBUG
2164hint.si.0.at="isa"
2165hint.si.0.maddr="0xd0000"
2166hint.si.0.irq="12"
2167
2168#
2169# The 'bktr' device is a PCI video capture device using the Brooktree
2170# bt848/bt848a/bt849a/bt878/bt879 chipset. When used with a TV Tuner it forms a
2171# TV card, e.g. Miro PC/TV, Hauppauge WinCast/TV WinTV, VideoLogic Captivator,
2172# Intel Smart Video III, AverMedia, IMS Turbo, FlyVideo.
2173#
2174# options 	OVERRIDE_CARD=xxx
2175# options 	OVERRIDE_TUNER=xxx
2176# options 	OVERRIDE_MSP=1
2177# options 	OVERRIDE_DBX=1
2178# These options can be used to override the auto detection
2179# The current values for xxx are found in src/sys/dev/bktr/bktr_card.h
2180# Using sysctl(8) run-time overrides on a per-card basis can be made
2181#
2182# options 	BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_PAL
2183# or
2184# options 	BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_NTSC
2185# Specifies the default video capture mode.
2186# This is required for Dual Crystal (28&35Mhz) boards where PAL is used
2187# to prevent hangs during initialisation, e.g. VideoLogic Captivator PCI.
2188#
2189# options 	BKTR_USE_PLL
2190# This is required for PAL or SECAM boards with a 28Mhz crystal and no 35Mhz
2191# crystal, e.g. some new Bt878 cards.
2192#
2193# options 	BKTR_GPIO_ACCESS
2194# This enable IOCTLs which give user level access to the GPIO port.
2195#
2196# options 	BKTR_NO_MSP_RESET
2197# Prevents the MSP34xx reset. Good if you initialise the MSP in another OS first
2198#
2199# options 	BKTR_430_FX_MODE
2200# Switch Bt878/879 cards into Intel 430FX chipset compatibility mode.
2201#
2202# options 	BKTR_SIS_VIA_MODE
2203# Switch Bt878/879 cards into SIS/VIA chipset compatibility mode which is
2204# needed for some old SiS and VIA chipset motherboards.
2205# This also allows Bt878/879 chips to work on old OPTi (<1997) chipset
2206# motherboards and motherboards with bad or incomplete PCI 2.1 support.
2207# As a rough guess, old = before 1998
2208#
2209# options 	BKTR_NEW_MSP34XX_DRIVER
2210# Use new, more complete initialization scheme for the msp34* soundchip.
2211# Should fix stereo autodetection if the old driver does only output
2212# mono sound.
2213
2214#
2215# options 	BKTR_USE_FREEBSD_SMBUS
2216# Compile with FreeBSD SMBus implementation
2217#
2218# Brooktree driver has been ported to the new I2C framework. Thus,
2219# you'll need to have the following 3 lines in the kernel config.
2220#     device smbus
2221#     device iicbus
2222#     device iicbb
2223#     device iicsmb
2224# The iic and smb devices are only needed if you want to control other
2225# I2C slaves connected to the external connector of some cards.
2226#
2227device		bktr
2228
2229#
2230# PC Card/PCMCIA and Cardbus
2231#
2232# cbb: pci/cardbus bridge implementing YENTA interface
2233# pccard: pccard slots
2234# cardbus: cardbus slots
2235device		cbb
2236device		pccard
2237device		cardbus
2238
2239#
2240# MMC/SD
2241#
2242# mmc: mmc bus
2243# mmcsd: mmc memory and sd cards.
2244#device		mmc
2245#device		mmcsd
2246
2247#
2248# SMB bus
2249#
2250# System Management Bus support is provided by the 'smbus' device.
2251# Access to the SMBus device is via the 'smb' device (/dev/smb*),
2252# which is a child of the 'smbus' device.
2253#
2254# Supported devices:
2255# smb		standard I/O through /dev/smb*
2256#
2257# Supported SMB interfaces:
2258# iicsmb	I2C to SMB bridge with any iicbus interface
2259# bktr		brooktree848 I2C hardware interface
2260# intpm		Intel PIIX4 (82371AB, 82443MX) Power Management Unit
2261# alpm		Acer Aladdin-IV/V/Pro2 Power Management Unit
2262# ichsmb	Intel ICH SMBus controller chips (82801AA, 82801AB, 82801BA)
2263# viapm		VIA VT82C586B/596B/686A and VT8233 Power Management Unit
2264# amdpm		AMD 756 Power Management Unit
2265# amdsmb	AMD 8111 SMBus 2.0 Controller
2266# nfpm		NVIDIA nForce Power Management Unit
2267# nfsmb		NVIDIA nForce2/3/4 MCP SMBus 2.0 Controller
2268#
2269device		smbus		# Bus support, required for smb below.
2270
2271device		intpm
2272device		alpm
2273device		ichsmb
2274device		viapm
2275device		amdpm
2276device		amdsmb
2277device		nfpm
2278device		nfsmb
2279
2280device		smb
2281
2282#
2283# I2C Bus
2284#
2285# Philips i2c bus support is provided by the `iicbus' device.
2286#
2287# Supported devices:
2288# ic	i2c network interface
2289# iic	i2c standard io
2290# iicsmb i2c to smb bridge. Allow i2c i/o with smb commands.
2291#
2292# Supported interfaces:
2293# bktr	brooktree848 I2C software interface
2294#
2295# Other:
2296# iicbb	generic I2C bit-banging code (needed by lpbb, bktr)
2297#
2298device		iicbus		# Bus support, required for ic/iic/iicsmb below.
2299device		iicbb
2300
2301device		ic
2302device		iic
2303device		iicsmb		# smb over i2c bridge
2304
2305# Parallel-Port Bus
2306#
2307# Parallel port bus support is provided by the `ppbus' device.
2308# Multiple devices may be attached to the parallel port, devices
2309# are automatically probed and attached when found.
2310#
2311# Supported devices:
2312# vpo	Iomega Zip Drive
2313#	Requires SCSI disk support ('scbus' and 'da'), best
2314#	performance is achieved with ports in EPP 1.9 mode.
2315# lpt	Parallel Printer
2316# plip	Parallel network interface
2317# ppi	General-purpose I/O ("Geek Port") + IEEE1284 I/O
2318# pps	Pulse per second Timing Interface
2319# lpbb	Philips official parallel port I2C bit-banging interface
2320#
2321# Supported interfaces:
2322# ppc	ISA-bus parallel port interfaces.
2323#
2324
2325options 	PPC_PROBE_CHIPSET # Enable chipset specific detection
2326				  # (see flags in ppc(4))
2327options 	DEBUG_1284	# IEEE1284 signaling protocol debug
2328options 	PERIPH_1284	# Makes your computer act as an IEEE1284
2329				# compliant peripheral
2330options 	DONTPROBE_1284	# Avoid boot detection of PnP parallel devices
2331options 	VP0_DEBUG	# ZIP/ZIP+ debug
2332options 	LPT_DEBUG	# Printer driver debug
2333options 	PPC_DEBUG	# Parallel chipset level debug
2334options 	PLIP_DEBUG	# Parallel network IP interface debug
2335options 	PCFCLOCK_VERBOSE         # Verbose pcfclock driver
2336options 	PCFCLOCK_MAX_RETRIES=5   # Maximum read tries (default 10)
2337
2338device		ppc
2339hint.ppc.0.at="isa"
2340hint.ppc.0.irq="7"
2341device		ppbus
2342device		vpo
2343device		lpt
2344device		plip
2345device		ppi
2346device		pps
2347device		lpbb
2348device		pcfclock
2349
2350# Kernel BOOTP support
2351
2352options 	BOOTP		# Use BOOTP to obtain IP address/hostname
2353				# Requires NFSCLIENT and NFS_ROOT
2354options 	BOOTP_NFSROOT	# NFS mount root filesystem using BOOTP info
2355options 	BOOTP_NFSV3	# Use NFS v3 to NFS mount root
2356options 	BOOTP_COMPAT	# Workaround for broken bootp daemons.
2357options 	BOOTP_WIRED_TO=fxp0 # Use interface fxp0 for BOOTP
2358
2359#
2360# Add software watchdog routines.
2361#
2362options 	SW_WATCHDOG
2363
2364#
2365# Disable swapping of stack pages.  This option removes all
2366# code which actually performs swapping, so it's not possible to turn
2367# it back on at run-time.
2368#
2369# This is sometimes usable for systems which don't have any swap space
2370# (see also sysctls "vm.defer_swapspace_pageouts" and
2371# "vm.disable_swapspace_pageouts")
2372#
2373#options 	NO_SWAPPING
2374
2375# Set the number of sf_bufs to allocate. sf_bufs are virtual buffers
2376# for sendfile(2) that are used to map file VM pages, and normally
2377# default to a quantity that is roughly 16*MAXUSERS+512. You would
2378# typically want about 4 of these for each simultaneous file send.
2379#
2380options 	NSFBUFS=1024
2381
2382#
2383# Enable extra debugging code for locks.  This stores the filename and
2384# line of whatever acquired the lock in the lock itself, and change a
2385# number of function calls to pass around the relevant data.  This is
2386# not at all useful unless you are debugging lock code.  Also note
2387# that it is likely to break e.g. fstat(1) unless you recompile your
2388# userland with -DDEBUG_LOCKS as well.
2389#
2390options 	DEBUG_LOCKS
2391
2392
2393#####################################################################
2394# USB support
2395# UHCI controller
2396device		uhci
2397# OHCI controller
2398device		ohci
2399# EHCI controller
2400device		ehci
2401# SL811 Controller
2402device 		slhci
2403# General USB code (mandatory for USB)
2404device		usb
2405#
2406# USB Double Bulk Pipe devices
2407device		udbp
2408# USB Fm Radio
2409device		ufm
2410# Generic USB device driver
2411device		ugen
2412# Human Interface Device (anything with buttons and dials)
2413device		uhid
2414# USB keyboard
2415device		ukbd
2416# USB printer
2417device		ulpt
2418# USB Iomega Zip 100 Drive (Requires scbus and da)
2419device		umass
2420# USB support for Belkin F5U109 and Magic Control Technology serial adapters
2421device		umct
2422# USB modem support
2423device		umodem
2424# USB mouse
2425device		ums
2426# Diamond Rio 500 MP3 player
2427device		urio
2428# USB scanners
2429device		uscanner
2430#
2431# USB serial support
2432device		ucom
2433# USB support for Technologies ARK3116 based serial adapters
2434device		uark
2435# USB support for Belkin F5U103 and compatible serial adapters
2436device		ubsa
2437# USB support for BWCT console serial adapters
2438device		ubser
2439# USB support for serial adapters based on the FT8U100AX and FT8U232AM
2440device		uftdi
2441# USB support for some Windows CE based serial communication.
2442device		uipaq
2443# USB support for Prolific PL-2303 serial adapters
2444device		uplcom
2445# USB Visor and Palm devices
2446device		uvisor
2447# USB serial support for DDI pocket's PHS
2448device		uvscom
2449#
2450# ADMtek USB ethernet. Supports the LinkSys USB100TX,
2451# the Billionton USB100, the Melco LU-ATX, the D-Link DSB-650TX
2452# and the SMC 2202USB. Also works with the ADMtek AN986 Pegasus
2453# eval board.
2454device		aue
2455
2456# ASIX Electronics AX88172 USB 2.0 ethernet driver. Used in the
2457# LinkSys USB200M and various other adapters.
2458
2459device		axe
2460
2461#
2462# Devices which communicate using Ethernet over USB, particularly
2463# Communication Device Class (CDC) Ethernet specification. Supports
2464# Sharp Zaurus PDAs, some DOCSIS cable modems and so on.
2465device		cdce
2466#
2467# CATC USB-EL1201A USB ethernet. Supports the CATC Netmate
2468# and Netmate II, and the Belkin F5U111.
2469device		cue
2470#
2471# Kawasaki LSI ethernet. Supports the LinkSys USB10T,
2472# Entrega USB-NET-E45, Peracom Ethernet Adapter, the
2473# 3Com 3c19250, the ADS Technologies USB-10BT, the ATen UC10T,
2474# the Netgear EA101, the D-Link DSB-650, the SMC 2102USB
2475# and 2104USB, and the Corega USB-T.
2476device		kue
2477#
2478# RealTek RTL8150 USB to fast ethernet. Supports the Melco LUA-KTX
2479# and the GREEN HOUSE GH-USB100B.
2480device		rue
2481#
2482# Davicom DM9601E USB to fast ethernet. Supports the Corega FEther USB-TXC.
2483device		udav
2484
2485
2486# debugging options for the USB subsystem
2487#
2488options 	USB_DEBUG
2489
2490# options for ukbd:
2491options 	UKBD_DFLT_KEYMAP	# specify the built-in keymap
2492makeoptions	UKBD_DFLT_KEYMAP=it.iso
2493
2494# options for uplcom:
2495options 	UPLCOM_INTR_INTERVAL=100	# interrupt pipe interval
2496						# in milliseconds
2497
2498# options for uvscom:
2499options 	UVSCOM_DEFAULT_OPKTSIZE=8	# default output packet size
2500options 	UVSCOM_INTR_INTERVAL=100	# interrupt pipe interval
2501						# in milliseconds
2502
2503#####################################################################
2504# FireWire support
2505
2506device		firewire	# FireWire bus code
2507device		sbp		# SCSI over Firewire (Requires scbus and da)
2508device		sbp_targ	# SBP-2 Target mode  (Requires scbus and targ)
2509device		fwe		# Ethernet over FireWire (non-standard!)
2510device		fwip		# IP over FireWire (RFC2734 and RFC3146)
2511
2512#####################################################################
2513# dcons support (Dumb Console Device)
2514
2515device		dcons			# dumb console driver
2516device		dcons_crom		# FireWire attachment
2517options 	DCONS_BUF_SIZE=16384	# buffer size
2518options 	DCONS_POLL_HZ=100	# polling rate
2519options 	DCONS_FORCE_CONSOLE=0	# force to be the primary console
2520options 	DCONS_FORCE_GDB=1	# force to be the gdb device
2521
2522#####################################################################
2523# crypto subsystem
2524#
2525# This is a port of the OpenBSD crypto framework.  Include this when
2526# configuring IPSEC and when you have a h/w crypto device to accelerate
2527# user applications that link to OpenSSL.
2528#
2529# Drivers are ports from OpenBSD with some simple enhancements that have
2530# been fed back to OpenBSD.
2531
2532device		crypto		# core crypto support
2533device		cryptodev	# /dev/crypto for access to h/w
2534
2535device		rndtest		# FIPS 140-2 entropy tester
2536
2537device		hifn		# Hifn 7951, 7781, etc.
2538options 	HIFN_DEBUG	# enable debugging support: hw.hifn.debug
2539options 	HIFN_RNDTEST	# enable rndtest support
2540
2541device		ubsec		# Broadcom 5501, 5601, 58xx
2542options 	UBSEC_DEBUG	# enable debugging support: hw.ubsec.debug
2543options 	UBSEC_RNDTEST	# enable rndtest support
2544
2545#####################################################################
2546
2547
2548#
2549# Embedded system options:
2550#
2551# An embedded system might want to run something other than init.
2552options 	INIT_PATH=/sbin/init:/stand/sysinstall
2553
2554# Debug options
2555options 	BUS_DEBUG	# enable newbus debugging
2556options 	DEBUG_VFS_LOCKS	# enable VFS lock debugging
2557options 	SOCKBUF_DEBUG	# enable sockbuf last record/mb tail checking
2558
2559#
2560# Verbose SYSINIT
2561#
2562# Make the SYSINIT process performed by mi_startup() verbose.  This is very
2563# useful when porting to a new architecture.  If DDB is also enabled, this
2564# will print function names instead of addresses.
2565options 	VERBOSE_SYSINIT
2566
2567#####################################################################
2568# SYSV IPC KERNEL PARAMETERS
2569#
2570# Maximum number of entries in a semaphore map.
2571options 	SEMMAP=31
2572
2573# Maximum number of System V semaphores that can be used on the system at
2574# one time.
2575options 	SEMMNI=11
2576
2577# Total number of semaphores system wide
2578options 	SEMMNS=61
2579
2580# Total number of undo structures in system
2581options 	SEMMNU=31
2582
2583# Maximum number of System V semaphores that can be used by a single process
2584# at one time.
2585options 	SEMMSL=61
2586
2587# Maximum number of operations that can be outstanding on a single System V
2588# semaphore at one time.
2589options 	SEMOPM=101
2590
2591# Maximum number of undo operations that can be outstanding on a single
2592# System V semaphore at one time.
2593options 	SEMUME=11
2594
2595# Maximum number of shared memory pages system wide.
2596options 	SHMALL=1025
2597
2598# Maximum size, in bytes, of a single System V shared memory region.
2599options 	SHMMAX=(SHMMAXPGS*PAGE_SIZE+1)
2600options 	SHMMAXPGS=1025
2601
2602# Minimum size, in bytes, of a single System V shared memory region.
2603options 	SHMMIN=2
2604
2605# Maximum number of shared memory regions that can be used on the system
2606# at one time.
2607options 	SHMMNI=33
2608
2609# Maximum number of System V shared memory regions that can be attached to
2610# a single process at one time.
2611options 	SHMSEG=9
2612
2613# Set the amount of time (in seconds) the system will wait before
2614# rebooting automatically when a kernel panic occurs.  If set to (-1),
2615# the system will wait indefinitely until a key is pressed on the
2616# console.
2617options 	PANIC_REBOOT_WAIT_TIME=16
2618
2619# Attempt to bypass the buffer cache and put data directly into the
2620# userland buffer for read operation when O_DIRECT flag is set on the
2621# file.  Both offset and length of the read operation must be
2622# multiples of the physical media sector size.
2623#
2624options 	DIRECTIO
2625
2626# Specify a lower limit for the number of swap I/O buffers.  They are
2627# (among other things) used when bypassing the buffer cache due to
2628# DIRECTIO kernel option enabled and O_DIRECT flag set on file.
2629#
2630options 	NSWBUF_MIN=120
2631
2632#####################################################################
2633
2634# More undocumented options for linting.
2635# Note that documenting these are not considered an affront.
2636
2637options 	CAM_DEBUG_DELAY
2638
2639# VFS cluster debugging.
2640options 	CLUSTERDEBUG
2641
2642options 	DEBUG
2643
2644# Kernel filelock debugging.
2645options 	LOCKF_DEBUG
2646
2647# System V compatible message queues
2648# Please note that the values provided here are used to test kernel
2649# building.  The defaults in the sources provide almost the same numbers.
2650# MSGSSZ must be a power of 2 between 8 and 1024.
2651options 	MSGMNB=2049	# Max number of chars in queue
2652options 	MSGMNI=41	# Max number of message queue identifiers
2653options 	MSGSEG=2049	# Max number of message segments
2654options 	MSGSSZ=16	# Size of a message segment
2655options 	MSGTQL=41	# Max number of messages in system
2656
2657options 	NBUF=512	# Number of buffer headers
2658
2659options 	SCSI_NCR_DEBUG
2660options 	SCSI_NCR_MAX_SYNC=10000
2661options 	SCSI_NCR_MAX_WIDE=1
2662options 	SCSI_NCR_MYADDR=7
2663
2664options 	SC_DEBUG_LEVEL=5	# Syscons debug level
2665options 	SC_RENDER_DEBUG	# syscons rendering debugging
2666
2667options 	SHOW_BUSYBUFS	# List buffers that prevent root unmount
2668options 	SLIP_IFF_OPTS
2669options 	VFS_BIO_DEBUG	# VFS buffer I/O debugging
2670
2671options 	KSTACK_MAX_PAGES=32 # Maximum pages to give the kernel stack
2672
2673# Adaptec Array Controller driver options
2674options 	AAC_DEBUG	# Debugging levels:
2675				# 0 - quiet, only emit warnings
2676				# 1 - noisy, emit major function
2677				#     points and things done
2678				# 2 - extremely noisy, emit trace
2679				#     items in loops, etc.
2680
2681# Yet more undocumented options for linting.
2682# BKTR_ALLOC_PAGES has no effect except to cause warnings, and
2683# BROOKTREE_ALLOC_PAGES hasn't actually been superseded by it, since the
2684# driver still mostly spells this option BROOKTREE_ALLOC_PAGES.
2685##options 	BKTR_ALLOC_PAGES=(217*4+1)
2686options 	BROOKTREE_ALLOC_PAGES=(217*4+1)
2687options 	MAXFILES=999
2688