xref: /freebsd/sys/conf/NOTES (revision 00a5db46de56179184c0f000eaacad695e2b0859)
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_LINUX_LVM		# Linux LVM2 volumes
144options 	GEOM_MBR		# DOS/MBR partitioning
145options 	GEOM_MIRROR		# Disk mirroring.
146options 	GEOM_MULTIPATH		# Disk multipath
147options 	GEOM_NOP		# Test class.
148options 	GEOM_PART_APM		# Apple partitioning
149options 	GEOM_PART_BSD		# BSD disklabel
150options 	GEOM_PART_EBR		# Extended Boot Records
151options 	GEOM_PART_EBR_COMPAT	# Backward compatible partition names
152options 	GEOM_PART_GPT		# GPT partitioning
153options 	GEOM_PART_MBR		# MBR partitioning
154options 	GEOM_PART_PC98		# PC-9800 disk partitioning
155options 	GEOM_PART_VTOC8		# SMI VTOC8 disk label
156options 	GEOM_PC98		# NEC PC9800 partitioning
157options 	GEOM_RAID3		# RAID3 functionality.
158options 	GEOM_SHSEC		# Shared secret.
159options 	GEOM_STRIPE		# Disk striping.
160options 	GEOM_SUNLABEL		# Sun/Solaris partitioning
161options 	GEOM_UZIP		# Read-only compressed disks
162options 	GEOM_VIRSTOR		# Virtual storage.
163options 	GEOM_VOL		# Volume names from UFS superblock
164options 	GEOM_ZERO		# Performance testing helper.
165
166#
167# The root device and filesystem type can be compiled in;
168# this provides a fallback option if the root device cannot
169# be correctly guessed by the bootstrap code, or an override if
170# the RB_DFLTROOT flag (-r) is specified when booting the kernel.
171#
172options 	ROOTDEVNAME=\"ufs:da0s2e\"
173
174
175#####################################################################
176# Scheduler options:
177#
178# Specifying one of SCHED_4BSD or SCHED_ULE is mandatory.  These options
179# select which scheduler is compiled in.
180#
181# SCHED_4BSD is the historical, proven, BSD scheduler.  It has a global run
182# queue and no CPU affinity which makes it suboptimal for SMP.  It has very
183# good interactivity and priority selection.
184#
185# SCHED_ULE provides significant performance advantages over 4BSD on many
186# workloads on SMP machines.  It supports cpu-affinity, per-cpu runqueues
187# and scheduler locks.  It also has a stronger notion of interactivity
188# which leads to better responsiveness even on uniprocessor machines.  This
189# will eventually become the default scheduler.
190#
191# SCHED_STATS is a debugging option which keeps some stats in the sysctl
192# tree at 'kern.sched.stats' and is useful for debugging scheduling decisions.
193#
194options 	SCHED_4BSD
195options 	SCHED_STATS
196#options 	SCHED_ULE
197
198#####################################################################
199# SMP OPTIONS:
200#
201# SMP enables building of a Symmetric MultiProcessor Kernel.
202
203# Mandatory:
204options 	SMP			# Symmetric MultiProcessor Kernel
205
206# ADAPTIVE_MUTEXES changes the behavior of blocking mutexes to spin
207# if the thread that currently owns the mutex is executing on another
208# CPU.  This behaviour is enabled by default, so this option can be used
209# to disable it.
210options 	NO_ADAPTIVE_MUTEXES
211
212# ADAPTIVE_RWLOCKS changes the behavior of reader/writer locks to spin
213# if the thread that currently owns the rwlock is executing on another
214# CPU.  This behaviour is enabled by default, so this option can be used
215# to disable it.
216options 	NO_ADAPTIVE_RWLOCKS
217
218# ADAPTIVE_SX changes the behavior of sx locks to spin if the thread
219# that currently owns the lock is executing on another CPU.  Note that
220# in addition to enabling this option, individual sx locks must be
221# initialized with the SX_ADAPTIVESPIN flag.
222options 	ADAPTIVE_SX
223
224# MUTEX_NOINLINE forces mutex operations to call functions to perform each
225# operation rather than inlining the simple cases.  This can be used to
226# shrink the size of the kernel text segment.  Note that this behavior is
227# already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
228# and WITNESS options.
229options 	MUTEX_NOINLINE
230
231# RWLOCK_NOINLINE forces rwlock operations to call functions to perform each
232# operation rather than inlining the simple cases.  This can be used to
233# shrink the size of the kernel text segment.  Note that this behavior is
234# already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
235# and WITNESS options.
236options 	RWLOCK_NOINLINE
237
238# SX_NOINLINE forces sx lock operations to call functions to perform each
239# operation rather than inlining the simple cases.  This can be used to
240# shrink the size of the kernel text segment.  Note that this behavior is
241# already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
242# and WITNESS options.
243options 	SX_NOINLINE
244
245# SMP Debugging Options:
246#
247# PREEMPTION allows the threads that are in the kernel to be preempted by
248#	  higher priority [interrupt] threads.  It helps with interactivity
249#	  and allows interrupt threads to run sooner rather than waiting.
250#	  WARNING! Only tested on amd64 and i386.
251# FULL_PREEMPTION instructs the kernel to preempt non-realtime kernel
252#	  threads.  Its sole use is to expose race conditions and other
253#	  bugs during development.  Enabling this option will reduce
254#	  performance and increase the frequency of kernel panics by
255#	  design.  If you aren't sure that you need it then you don't.
256#	  Relies on the PREEMPTION option.  DON'T TURN THIS ON.
257# MUTEX_DEBUG enables various extra assertions in the mutex code.
258# SLEEPQUEUE_PROFILING enables rudimentary profiling of the hash table
259#	  used to hold active sleep queues as well as sleep wait message
260#	  frequency.
261# TURNSTILE_PROFILING enables rudimentary profiling of the hash table
262#	  used to hold active lock queues.
263# WITNESS enables the witness code which detects deadlocks and cycles
264#         during locking operations.
265# WITNESS_KDB causes the witness code to drop into the kernel debugger if
266#	  a lock hierarchy violation occurs or if locks are held when going to
267#	  sleep.
268# WITNESS_SKIPSPIN disables the witness checks on spin mutexes.
269options 	PREEMPTION
270options 	FULL_PREEMPTION
271options 	MUTEX_DEBUG
272options 	WITNESS
273options 	WITNESS_KDB
274options 	WITNESS_SKIPSPIN
275
276# LOCK_PROFILING - Profiling locks.  See LOCK_PROFILING(9) for details.
277options 	LOCK_PROFILING
278# Set the number of buffers and the hash size.  The hash size MUST be larger
279# than the number of buffers.  Hash size should be prime.
280options 	MPROF_BUFFERS="1536"
281options 	MPROF_HASH_SIZE="1543"
282
283# Profiling for internal hash tables.
284options 	SLEEPQUEUE_PROFILING
285options 	TURNSTILE_PROFILING
286
287
288#####################################################################
289# COMPATIBILITY OPTIONS
290
291#
292# Implement system calls compatible with 4.3BSD and older versions of
293# FreeBSD.  You probably do NOT want to remove this as much current code
294# still relies on the 4.3 emulation.  Note that some architectures that
295# are supported by FreeBSD do not include support for certain important
296# aspects of this compatibility option, namely those related to the
297# signal delivery mechanism.
298#
299options 	COMPAT_43
300
301# Old tty interface.
302options 	COMPAT_43TTY
303
304# Enable FreeBSD4 compatibility syscalls
305options 	COMPAT_FREEBSD4
306
307# Enable FreeBSD5 compatibility syscalls
308options 	COMPAT_FREEBSD5
309
310# Enable FreeBSD6 compatibility syscalls
311options 	COMPAT_FREEBSD6
312
313# Enable FreeBSD7 compatibility syscalls
314options 	COMPAT_FREEBSD7
315
316#
317# These three options provide support for System V Interface
318# Definition-style interprocess communication, in the form of shared
319# memory, semaphores, and message queues, respectively.
320#
321options 	SYSVSHM
322options 	SYSVSEM
323options 	SYSVMSG
324
325
326#####################################################################
327# DEBUGGING OPTIONS
328
329#
330# Compile with kernel debugger related code.
331#
332options 	KDB
333
334#
335# Print a stack trace of the current thread on the console for a panic.
336#
337options 	KDB_TRACE
338
339#
340# Don't enter the debugger for a panic. Intended for unattended operation
341# where you may want to enter the debugger from the console, but still want
342# the machine to recover from a panic.
343#
344options 	KDB_UNATTENDED
345
346#
347# Enable the ddb debugger backend.
348#
349options 	DDB
350
351#
352# Print the numerical value of symbols in addition to the symbolic
353# representation.
354#
355options 	DDB_NUMSYM
356
357#
358# Enable the remote gdb debugger backend.
359#
360options 	GDB
361
362#
363# Enable the kernel DTrace hooks which are required to load the DTrace
364# kernel modules.
365#
366options 	KDTRACE_HOOKS
367
368#
369# SYSCTL_DEBUG enables a 'sysctl' debug tree that can be used to dump the
370# contents of the registered sysctl nodes on the console.  It is disabled by
371# default because it generates excessively verbose console output that can
372# interfere with serial console operation.
373#
374options 	SYSCTL_DEBUG
375
376#
377# DEBUG_MEMGUARD builds and enables memguard(9), a replacement allocator
378# for the kernel used to detect modify-after-free scenarios.  See the
379# memguard(9) man page for more information on usage.
380#
381options 	DEBUG_MEMGUARD
382
383#
384# DEBUG_REDZONE enables buffer underflows and buffer overflows detection for
385# malloc(9).
386#
387options 	DEBUG_REDZONE
388
389#
390# KTRACE enables the system-call tracing facility ktrace(2).  To be more
391# SMP-friendly, KTRACE uses a worker thread to process most trace events
392# asynchronously to the thread generating the event.  This requires a
393# pre-allocated store of objects representing trace events.  The
394# KTRACE_REQUEST_POOL option specifies the initial size of this store.
395# The size of the pool can be adjusted both at boottime and runtime via
396# the kern.ktrace_request_pool tunable and sysctl.
397#
398options 	KTRACE			#kernel tracing
399options 	KTRACE_REQUEST_POOL=101
400
401#
402# KTR is a kernel tracing mechanism imported from BSD/OS.  Currently
403# it has no userland interface aside from a few sysctl's.  It is
404# enabled with the KTR option.  KTR_ENTRIES defines the number of
405# entries in the circular trace buffer; it must be a power of two.
406# KTR_COMPILE defines the mask of events to compile into the kernel as
407# defined by the KTR_* constants in <sys/ktr.h>.  KTR_MASK defines the
408# initial value of the ktr_mask variable which determines at runtime
409# what events to trace.  KTR_CPUMASK determines which CPU's log
410# events, with bit X corresponding to CPU X.  KTR_VERBOSE enables
411# dumping of KTR events to the console by default.  This functionality
412# can be toggled via the debug.ktr_verbose sysctl and defaults to off
413# if KTR_VERBOSE is not defined.
414#
415options 	KTR
416options 	KTR_ENTRIES=1024
417options 	KTR_COMPILE=(KTR_INTR|KTR_PROC)
418options 	KTR_MASK=KTR_INTR
419options 	KTR_CPUMASK=0x3
420options 	KTR_VERBOSE
421
422#
423# ALQ(9) is a facility for the asynchronous queuing of records from the kernel
424# to a vnode, and is employed by services such as KTR(4) to produce trace
425# files based on a kernel event stream.  Records are written asynchronously
426# in a worker thread.
427#
428options 	ALQ
429options 	KTR_ALQ
430
431#
432# The INVARIANTS option is used in a number of source files to enable
433# extra sanity checking of internal structures.  This support is not
434# enabled by default because of the extra time it would take to check
435# for these conditions, which can only occur as a result of
436# programming errors.
437#
438options 	INVARIANTS
439
440#
441# The INVARIANT_SUPPORT option makes us compile in support for
442# verifying some of the internal structures.  It is a prerequisite for
443# 'INVARIANTS', as enabling 'INVARIANTS' will make these functions be
444# called.  The intent is that you can set 'INVARIANTS' for single
445# source files (by changing the source file or specifying it on the
446# command line) if you have 'INVARIANT_SUPPORT' enabled.  Also, if you
447# wish to build a kernel module with 'INVARIANTS', then adding
448# 'INVARIANT_SUPPORT' to your kernel will provide all the necessary
449# infrastructure without the added overhead.
450#
451options 	INVARIANT_SUPPORT
452
453#
454# The DIAGNOSTIC option is used to enable extra debugging information
455# from some parts of the kernel.  As this makes everything more noisy,
456# it is disabled by default.
457#
458options 	DIAGNOSTIC
459
460#
461# REGRESSION causes optional kernel interfaces necessary only for regression
462# testing to be enabled.  These interfaces may constitute security risks
463# when enabled, as they permit processes to easily modify aspects of the
464# run-time environment to reproduce unlikely or unusual (possibly normally
465# impossible) scenarios.
466#
467options 	REGRESSION
468
469#
470# RESTARTABLE_PANICS allows one to continue from a panic as if it were
471# a call to the debugger to continue from a panic as instead.  It is only
472# useful if a kernel debugger is present.  To restart from a panic, reset
473# the panicstr variable to NULL and continue execution.  This option is
474# for development use only and should NOT be used in production systems
475# to "workaround" a panic.
476#
477#options 	RESTARTABLE_PANICS
478
479#
480# This option let some drivers co-exist that can't co-exist in a running
481# system.  This is used to be able to compile all kernel code in one go for
482# quality assurance purposes (like this file, which the option takes it name
483# from.)
484#
485options 	COMPILING_LINT
486
487#
488# STACK enables the stack(9) facility, allowing the capture of kernel stack
489# for the purpose of procinfo(1), etc.  stack(9) will also be compiled in
490# automatically if DDB(4) is compiled into the kernel.
491#
492options 	STACK
493
494
495#####################################################################
496# PERFORMANCE MONITORING OPTIONS
497
498#
499# The hwpmc driver that allows the use of in-CPU performance monitoring
500# counters for performance monitoring.  The base kernel needs to configured
501# with the 'options' line, while the hwpmc device can be either compiled
502# in or loaded as a loadable kernel module.
503#
504# Additional configuration options may be required on specific architectures,
505# please see hwpmc(4).
506
507device		hwpmc			# Driver (also a loadable module)
508options 	HWPMC_HOOKS		# Other necessary kernel hooks
509
510
511#####################################################################
512# NETWORKING OPTIONS
513
514#
515# Protocol families
516#
517options 	INET			#Internet communications protocols
518options 	INET6			#IPv6 communications protocols
519
520options 	ROUTETABLES=2		# max 16. 1 is back compatible.
521
522# In order to enable IPSEC you MUST also add device crypto to
523# your kernel configuration
524options 	IPSEC			#IP security (requires device crypto)
525#options 	IPSEC_DEBUG		#debug for IP security
526#
527# #DEPRECATED#
528# Set IPSEC_FILTERTUNNEL to change the default of the sysctl to force packets
529# coming through a tunnel to be processed by any configured packet filtering
530# twice. The default is that packets coming out of a tunnel are _not_ processed;
531# they are assumed trusted.
532#
533# IPSEC history is preserved for such packets, and can be filtered
534# using ipfw(8)'s 'ipsec' keyword, when this option is enabled.
535#
536#options 	IPSEC_FILTERTUNNEL	#filter ipsec packets from a tunnel
537
538options 	IPX			#IPX/SPX communications protocols
539
540options 	NCP			#NetWare Core protocol
541
542options 	NETATALK		#Appletalk communications protocols
543options 	NETATALKDEBUG		#Appletalk debugging
544
545#
546# SMB/CIFS requester
547# NETSMB enables support for SMB protocol, it requires LIBMCHAIN and LIBICONV
548# options.
549options 	NETSMB			#SMB/CIFS requester
550
551# mchain library. It can be either loaded as KLD or compiled into kernel
552options 	LIBMCHAIN
553
554# libalias library, performing NAT
555options 	LIBALIAS
556
557# flowtable cache
558options 	FLOWTABLE
559
560#
561# SCTP is a NEW transport protocol defined by
562# RFC2960 updated by RFC3309 and RFC3758.. and
563# soon to have a new base RFC and many many more
564# extensions. This release supports all the extensions
565# including many drafts (most about to become RFC's).
566# It is the premeier SCTP implementation in the NET
567# and is quite well tested.
568#
569# Note YOU MUST have both INET and INET6 defined.
570# you don't have to enable V6, but SCTP is
571# dual stacked and so far we have not teased apart
572# the V6 and V4.. since an association can span
573# both a V6 and V4 address at the SAME time :-)
574#
575options 	SCTP
576# There are bunches of options:
577# this one turns on all sorts of
578# nastly printing that you can
579# do. Its all controled by a
580# bit mask (settable by socket opt and
581# by sysctl). Including will not cause
582# logging until you set the bits.. but it
583# can be quite verbose.. so without this
584# option we don't do any of the tests for
585# bits and prints.. which makes the code run
586# faster.. if you are not debugging don't use.
587options 	SCTP_DEBUG
588#
589# This option turns off the CRC32c checksum. Basically
590# You will not be able to talk to anyone else that
591# has not done this. Its more for expermentation to
592# see how much CPU the CRC32c really takes. Most new
593# cards for TCP support checksum offload.. so this
594# option gives you a "view" into what SCTP would be
595# like with such an offload (which only exists in
596# high in iSCSI boards so far). With the new
597# splitting 8's algorithm its not as bad as it used
598# to be.. but it does speed things up try only
599# for in a captured lab environment :-)
600options 	SCTP_WITH_NO_CSUM
601#
602
603#
604# All that options after that turn on specific types of
605# logging. You can monitor CWND growth, flight size
606# and all sorts of things. Go look at the code and
607# see. I have used this to produce interesting
608# charts and graphs as well :->
609#
610# I have not yet commited the tools to get and print
611# the logs, I will do that eventually .. before then
612# if you want them send me an email rrs@freebsd.org
613# You basically must have KTR enabled for these
614# and you then set the sysctl to turn on/off various
615# logging bits. Use ktrdump to pull the log and run
616# it through a dispaly program.. and graphs and other
617# things too.
618#
619options 	SCTP_LOCK_LOGGING
620options 	SCTP_MBUF_LOGGING
621options 	SCTP_MBCNT_LOGGING
622options 	SCTP_PACKET_LOGGING
623options 	SCTP_LTRACE_CHUNKS
624options 	SCTP_LTRACE_ERRORS
625
626
627# altq(9). Enable the base part of the hooks with the ALTQ option.
628# Individual disciplines must be built into the base system and can not be
629# loaded as modules at this point. ALTQ requires a stable TSC so if yours is
630# broken or changes with CPU throttling then you must also have the ALTQ_NOPCC
631# option.
632options 	ALTQ
633options 	ALTQ_CBQ	# Class Based Queueing
634options 	ALTQ_RED	# Random Early Detection
635options 	ALTQ_RIO	# RED In/Out
636options 	ALTQ_HFSC	# Hierarchical Packet Scheduler
637options 	ALTQ_CDNR	# Traffic conditioner
638options 	ALTQ_PRIQ	# Priority Queueing
639options 	ALTQ_NOPCC	# Required if the TSC is unusable
640options 	ALTQ_DEBUG
641
642# IP optional behaviour.
643# IP_NONLOCALBIND disables the check that bind() usually makes that the
644# address is one that is assigned to an interface on this machine.
645# It allows transparent proxies to pretend to be other machines.
646# How the packet GET to that machine is a problem solved elsewhere,
647# smart routers, ipfw fwd, etc.
648options 	IP_NONLOCALBIND		# Allow impersonation for proxies.
649
650# netgraph(4). Enable the base netgraph code with the NETGRAPH option.
651# Individual node types can be enabled with the corresponding option
652# listed below; however, this is not strictly necessary as netgraph
653# will automatically load the corresponding KLD module if the node type
654# is not already compiled into the kernel. Each type below has a
655# corresponding man page, e.g., ng_async(8).
656options 	NETGRAPH		# netgraph(4) system
657options 	NETGRAPH_DEBUG		# enable extra debugging, this
658					# affects netgraph(4) and nodes
659# Node types
660options 	NETGRAPH_ASYNC
661options 	NETGRAPH_ATMLLC
662options 	NETGRAPH_ATM_ATMPIF
663options 	NETGRAPH_BLUETOOTH		# ng_bluetooth(4)
664options 	NETGRAPH_BLUETOOTH_BT3C		# ng_bt3c(4)
665options 	NETGRAPH_BLUETOOTH_HCI		# ng_hci(4)
666options 	NETGRAPH_BLUETOOTH_L2CAP	# ng_l2cap(4)
667options 	NETGRAPH_BLUETOOTH_SOCKET	# ng_btsocket(4)
668options 	NETGRAPH_BLUETOOTH_UBT		# ng_ubt(4)
669options 	NETGRAPH_BLUETOOTH_UBTBCMFW	# ubtbcmfw(4)
670options 	NETGRAPH_BPF
671options 	NETGRAPH_BRIDGE
672options 	NETGRAPH_CAR
673options 	NETGRAPH_CISCO
674options 	NETGRAPH_DEFLATE
675options 	NETGRAPH_DEVICE
676options 	NETGRAPH_ECHO
677options 	NETGRAPH_EIFACE
678options 	NETGRAPH_ETHER
679options 	NETGRAPH_FEC
680options 	NETGRAPH_FRAME_RELAY
681options 	NETGRAPH_GIF
682options 	NETGRAPH_GIF_DEMUX
683options 	NETGRAPH_HOLE
684options 	NETGRAPH_IFACE
685options 	NETGRAPH_IP_INPUT
686options 	NETGRAPH_IPFW
687options 	NETGRAPH_KSOCKET
688options 	NETGRAPH_L2TP
689options 	NETGRAPH_LMI
690# MPPC compression requires proprietary files (not included)
691#options 	NETGRAPH_MPPC_COMPRESSION
692options 	NETGRAPH_MPPC_ENCRYPTION
693options 	NETGRAPH_NETFLOW
694options 	NETGRAPH_NAT
695options 	NETGRAPH_ONE2MANY
696options 	NETGRAPH_PPP
697options 	NETGRAPH_PPPOE
698options 	NETGRAPH_PPTPGRE
699options 	NETGRAPH_PRED1
700options 	NETGRAPH_RFC1490
701options 	NETGRAPH_SOCKET
702options 	NETGRAPH_SPLIT
703options 	NETGRAPH_SPPP
704options 	NETGRAPH_TAG
705options 	NETGRAPH_TCPMSS
706options 	NETGRAPH_TEE
707options 	NETGRAPH_UI
708options 	NETGRAPH_VJC
709
710# NgATM - Netgraph ATM
711options 	NGATM_ATM
712options 	NGATM_ATMBASE
713options 	NGATM_SSCOP
714options 	NGATM_SSCFU
715options 	NGATM_UNI
716options 	NGATM_CCATM
717
718device		mn	# Munich32x/Falc54 Nx64kbit/sec cards.
719
720#
721# Network interfaces:
722#  The `loop' device is MANDATORY when networking is enabled.
723device		loop
724
725#  The `ether' device provides generic code to handle
726#  Ethernets; it is MANDATORY when an Ethernet device driver is
727#  configured or token-ring is enabled.
728device		ether
729
730#  The `vlan' device implements the VLAN tagging of Ethernet frames
731#  according to IEEE 802.1Q.
732device		vlan
733
734#  The `wlan' device provides generic code to support 802.11
735#  drivers, including host AP mode; it is MANDATORY for the wi,
736#  and ath drivers and will eventually be required by all 802.11 drivers.
737device		wlan
738options 	IEEE80211_DEBUG		#enable debugging msgs
739options 	IEEE80211_AMPDU_AGE	#age frames in AMPDU reorder q's
740
741#  The `wlan_wep', `wlan_tkip', and `wlan_ccmp' devices provide
742#  support for WEP, TKIP, and AES-CCMP crypto protocols optionally
743#  used with 802.11 devices that depend on the `wlan' module.
744device		wlan_wep
745device		wlan_ccmp
746device		wlan_tkip
747
748#  The `wlan_xauth' device provides support for external (i.e. user-mode)
749#  authenticators for use with 802.11 drivers that use the `wlan'
750#  module and support 802.1x and/or WPA security protocols.
751device		wlan_xauth
752
753#  The `wlan_acl' device provides a MAC-based access control mechanism
754#  for use with 802.11 drivers operating in ap mode and using the
755#  `wlan' module.
756#  The 'wlan_amrr' device provides AMRR transmit rate control algorithm
757device		wlan_acl
758device		wlan_amrr
759
760# Generic TokenRing
761device		token
762
763#  The `fddi' device provides generic code to support FDDI.
764device		fddi
765
766#  The `arcnet' device provides generic code to support Arcnet.
767device		arcnet
768
769#  The `sppp' device serves a similar role for certain types
770#  of synchronous PPP links (like `cx', `ar').
771device		sppp
772
773#  The `bpf' device enables the Berkeley Packet Filter.  Be
774#  aware of the legal and administrative consequences of enabling this
775#  option.  The number of devices determines the maximum number of
776#  simultaneous BPF clients programs runnable.  DHCP requires bpf.
777device		bpf
778
779#  The `disc' device implements a minimal network interface,
780#  which throws away all packets sent and never receives any.  It is
781#  included for testing and benchmarking purposes.
782device		disc
783
784#  The `edsc' device implements a minimal Ethernet interface,
785#  which discards all packets sent and receives none.
786device		edsc
787
788#  The `tap' device is a pty-like virtual Ethernet interface
789device		tap
790
791#  The `tun' device implements (user-)ppp and nos-tun(8)
792device		tun
793
794#  The `gif' device implements IPv6 over IP4 tunneling,
795#  IPv4 over IPv6 tunneling, IPv4 over IPv4 tunneling and
796#  IPv6 over IPv6 tunneling.
797#  The `gre' device implements two types of IP4 over IP4 tunneling:
798#  GRE and MOBILE, as specified in the RFC1701 and RFC2004.
799#  The XBONEHACK option allows the same pair of addresses to be configured on
800#  multiple gif interfaces.
801device		gif
802device		gre
803options 	XBONEHACK
804
805#  The `faith' device captures packets sent to it and diverts them
806#  to the IPv4/IPv6 translation daemon.
807#  The `stf' device implements 6to4 encapsulation.
808device		faith
809device		stf
810
811#  The `ef' device provides support for multiple ethernet frame types
812#  specified via ETHER_* options. See ef(4) for details.
813device		ef
814options 	ETHER_II		# enable Ethernet_II frame
815options 	ETHER_8023		# enable Ethernet_802.3 (Novell) frame
816options 	ETHER_8022		# enable Ethernet_802.2 frame
817options 	ETHER_SNAP		# enable Ethernet_802.2/SNAP frame
818
819# The pf packet filter consists of three devices:
820#  The `pf' device provides /dev/pf and the firewall code itself.
821#  The `pflog' device provides the pflog0 interface which logs packets.
822#  The `pfsync' device provides the pfsync0 interface used for
823#   synchronization of firewall state tables (over the net).
824device		pf
825device		pflog
826device		pfsync
827
828# Bridge interface.
829device		if_bridge
830
831# Common Address Redundancy Protocol. See carp(4) for more details.
832device		carp
833
834# IPsec interface.
835device		enc
836
837# Link aggregation interface.
838device		lagg
839
840#
841# Internet family options:
842#
843# MROUTING enables the kernel multicast packet forwarder, which works
844# with mrouted and XORP.
845#
846# IPFIREWALL enables support for IP firewall construction, in
847# conjunction with the `ipfw' program.  IPFIREWALL_VERBOSE sends
848# logged packets to the system logger.  IPFIREWALL_VERBOSE_LIMIT
849# limits the number of times a matching entry can be logged.
850#
851# WARNING:  IPFIREWALL defaults to a policy of "deny ip from any to any"
852# and if you do not add other rules during startup to allow access,
853# YOU WILL LOCK YOURSELF OUT.  It is suggested that you set firewall_type=open
854# in /etc/rc.conf when first enabling this feature, then refining the
855# firewall rules in /etc/rc.firewall after you've tested that the new kernel
856# feature works properly.
857#
858# IPFIREWALL_DEFAULT_TO_ACCEPT causes the default rule (at boot) to
859# allow everything.  Use with care, if a cracker can crash your
860# firewall machine, they can get to your protected machines.  However,
861# if you are using it as an as-needed filter for specific problems as
862# they arise, then this may be for you.  Changing the default to 'allow'
863# means that you won't get stuck if the kernel and /sbin/ipfw binary get
864# out of sync.
865#
866# IPDIVERT enables the divert IP sockets, used by ``ipfw divert''.  It
867# depends on IPFIREWALL if compiled into the kernel.
868#
869# IPFIREWALL_FORWARD enables changing of the packet destination either
870# to do some sort of policy routing or transparent proxying.  Used by
871# ``ipfw forward''. All  redirections apply to locally generated
872# packets too.  Because of this great care is required when
873# crafting the ruleset.
874#
875# IPFIREWALL_NAT adds support for in kernel nat in ipfw, and it requires
876# LIBALIAS.
877#
878# IPSTEALTH enables code to support stealth forwarding (i.e., forwarding
879# packets without touching the TTL).  This can be useful to hide firewalls
880# from traceroute and similar tools.
881#
882# TCPDEBUG enables code which keeps traces of the TCP state machine
883# for sockets with the SO_DEBUG option set, which can then be examined
884# using the trpt(8) utility.
885#
886options 	MROUTING		# Multicast routing
887options 	IPFIREWALL		#firewall
888options 	IPFIREWALL_VERBOSE	#enable logging to syslogd(8)
889options 	IPFIREWALL_VERBOSE_LIMIT=100	#limit verbosity
890options 	IPFIREWALL_DEFAULT_TO_ACCEPT	#allow everything by default
891options 	IPFIREWALL_FORWARD	#packet destination changes
892options 	IPFIREWALL_NAT		#ipfw kernel nat support
893options 	IPDIVERT		#divert sockets
894options 	IPFILTER		#ipfilter support
895options 	IPFILTER_LOG		#ipfilter logging
896options 	IPFILTER_LOOKUP		#ipfilter pools
897options 	IPFILTER_DEFAULT_BLOCK	#block all packets by default
898options 	IPSTEALTH		#support for stealth forwarding
899options 	TCPDEBUG
900
901# The MBUF_STRESS_TEST option enables options which create
902# various random failures / extreme cases related to mbuf
903# functions.  See mbuf(9) for a list of available test cases.
904# MBUF_PROFILING enables code to profile the mbuf chains
905# exiting the system (via participating interfaces) and
906# return a logarithmic histogram of monitored parameters
907# (e.g. packet size, wasted space, number of mbufs in chain).
908options 	MBUF_STRESS_TEST
909options 	MBUF_PROFILING
910
911# Statically Link in accept filters
912options 	ACCEPT_FILTER_DATA
913options 	ACCEPT_FILTER_DNS
914options 	ACCEPT_FILTER_HTTP
915
916# TCP_SIGNATURE adds support for RFC 2385 (TCP-MD5) digests. These are
917# carried in TCP option 19. This option is commonly used to protect
918# TCP sessions (e.g. BGP) where IPSEC is not available nor desirable.
919# This is enabled on a per-socket basis using the TCP_MD5SIG socket option.
920# This requires the use of 'device crypto', 'options IPSEC'
921# or 'device cryptodev'.
922options 	TCP_SIGNATURE		#include support for RFC 2385
923
924# DUMMYNET enables the "dummynet" bandwidth limiter.  You need IPFIREWALL
925# as well.  See dummynet(4) and ipfw(8) for more info.  When you run
926# DUMMYNET it is advisable to also have at least "options HZ=1000" to achieve
927# a smooth scheduling of the traffic.
928options 	DUMMYNET
929
930# Zero copy sockets support.  This enables "zero copy" for sending and
931# receiving data via a socket.  The send side works for any type of NIC,
932# the receive side only works for NICs that support MTUs greater than the
933# page size of your architecture and that support header splitting.  See
934# zero_copy(9) for more details.
935options 	ZERO_COPY_SOCKETS
936
937
938#####################################################################
939# FILESYSTEM OPTIONS
940
941#
942# Only the root, /usr, and /tmp filesystems need be statically
943# compiled; everything else will be automatically loaded at mount
944# time.  (Exception: the UFS family--- FFS --- cannot
945# currently be demand-loaded.)  Some people still prefer to statically
946# compile other filesystems as well.
947#
948# NB: The PORTAL filesystem is known to be buggy, and WILL panic your
949# system if you attempt to do anything with it.  It is included here
950# as an incentive for some enterprising soul to sit down and fix it.
951# The UNION filesystem was known to be buggy in the past.  It is now
952# being actively maintained, although there are still some issues being
953# resolved.
954#
955
956# One of these is mandatory:
957options 	FFS			#Fast filesystem
958options 	NFSCLIENT		#Network File System client
959
960# The rest are optional:
961options 	CD9660			#ISO 9660 filesystem
962options 	FDESCFS			#File descriptor filesystem
963options 	HPFS			#OS/2 File system
964options 	MSDOSFS			#MS DOS File System (FAT, FAT32)
965options 	NFSSERVER		#Network File System server
966options 	NFSLOCKD		#Network Lock Manager
967
968# NT File System. Read-mostly, see mount_ntfs(8) for details.
969# For a full read-write NTFS support consider sysutils/fusefs-ntfs
970# port/package.
971options 	NTFS
972
973options 	NULLFS			#NULL filesystem
974# Broken (depends on NCP):
975#options 	NWFS			#NetWare filesystem
976options 	PORTALFS		#Portal filesystem
977options 	PROCFS			#Process filesystem (requires PSEUDOFS)
978options 	PSEUDOFS		#Pseudo-filesystem framework
979options 	PSEUDOFS_TRACE		#Debugging support for PSEUDOFS
980options 	SMBFS			#SMB/CIFS filesystem
981options 	UDF			#Universal Disk Format
982options 	UNIONFS			#Union filesystem
983# The xFS_ROOT options REQUIRE the associated ``options xFS''
984options 	NFS_ROOT		#NFS usable as root device
985
986# Soft updates is a technique for improving filesystem speed and
987# making abrupt shutdown less risky.
988#
989options 	SOFTUPDATES
990
991# Extended attributes allow additional data to be associated with files,
992# and is used for ACLs, Capabilities, and MAC labels.
993# See src/sys/ufs/ufs/README.extattr for more information.
994options 	UFS_EXTATTR
995options 	UFS_EXTATTR_AUTOSTART
996
997# Access Control List support for UFS filesystems.  The current ACL
998# implementation requires extended attribute support, UFS_EXTATTR,
999# for the underlying filesystem.
1000# See src/sys/ufs/ufs/README.acls for more information.
1001options 	UFS_ACL
1002
1003# Directory hashing improves the speed of operations on very large
1004# directories at the expense of some memory.
1005options 	UFS_DIRHASH
1006
1007# Gjournal-based UFS journaling support.
1008options 	UFS_GJOURNAL
1009
1010# Make space in the kernel for a root filesystem on a md device.
1011# Define to the number of kilobytes to reserve for the filesystem.
1012options 	MD_ROOT_SIZE=10
1013
1014# Make the md device a potential root device, either with preloaded
1015# images of type mfs_root or md_root.
1016options 	MD_ROOT
1017
1018# Disk quotas are supported when this option is enabled.
1019options 	QUOTA			#enable disk quotas
1020
1021# If you are running a machine just as a fileserver for PC and MAC
1022# users, using SAMBA or Netatalk, you may consider setting this option
1023# and keeping all those users' directories on a filesystem that is
1024# mounted with the suiddir option. This gives new files the same
1025# ownership as the directory (similar to group). It's a security hole
1026# if you let these users run programs, so confine it to file-servers
1027# (but it'll save you lots of headaches in those cases). Root owned
1028# directories are exempt and X bits are cleared. The suid bit must be
1029# set on the directory as well; see chmod(1) PC owners can't see/set
1030# ownerships so they keep getting their toes trodden on. This saves
1031# you all the support calls as the filesystem it's used on will act as
1032# they expect: "It's my dir so it must be my file".
1033#
1034options 	SUIDDIR
1035
1036# NFS options:
1037options 	NFS_MINATTRTIMO=3	# VREG attrib cache timeout in sec
1038options 	NFS_MAXATTRTIMO=60
1039options 	NFS_MINDIRATTRTIMO=30	# VDIR attrib cache timeout in sec
1040options 	NFS_MAXDIRATTRTIMO=60
1041options 	NFS_GATHERDELAY=10	# Default write gather delay (msec)
1042options 	NFS_WDELAYHASHSIZ=16	# and with this
1043options 	NFS_DEBUG		# Enable NFS Debugging
1044
1045# Coda stuff:
1046options 	CODA			#CODA filesystem.
1047device		vcoda			#coda minicache <-> venus comm.
1048# Use the old Coda 5.x venus<->kernel interface instead of the new
1049# realms-aware 6.x protocol.
1050#options 	CODA_COMPAT_5
1051
1052#
1053# Add support for the EXT2FS filesystem of Linux fame.  Be a bit
1054# careful with this - the ext2fs code has a tendency to lag behind
1055# changes and not be exercised very much, so mounting read/write could
1056# be dangerous (and even mounting read only could result in panics.)
1057#
1058options 	EXT2FS
1059
1060#
1061# Add support for the ReiserFS filesystem (used in Linux). Currently,
1062# this is limited to read-only access.
1063#
1064options 	REISERFS
1065
1066#
1067# Add support for the SGI XFS filesystem. Currently,
1068# this is limited to read-only access.
1069#
1070options 	XFS
1071
1072# Use real implementations of the aio_* system calls.  There are numerous
1073# stability and security issues in the current aio code that make it
1074# unsuitable for inclusion on machines with untrusted local users.
1075options 	VFS_AIO
1076
1077# Cryptographically secure random number generator; /dev/random
1078device		random
1079
1080# The system memory devices; /dev/mem, /dev/kmem
1081device		mem
1082
1083# The kernel symbol table device; /dev/ksyms
1084device		ksyms
1085
1086# Optional character code conversion support with LIBICONV.
1087# Each option requires their base file system and LIBICONV.
1088options 	CD9660_ICONV
1089options 	MSDOSFS_ICONV
1090options 	NTFS_ICONV
1091options 	UDF_ICONV
1092
1093
1094#####################################################################
1095# POSIX P1003.1B
1096
1097# Real time extensions added in the 1993 POSIX
1098# _KPOSIX_PRIORITY_SCHEDULING: Build in _POSIX_PRIORITY_SCHEDULING
1099
1100options 	_KPOSIX_PRIORITY_SCHEDULING
1101# p1003_1b_semaphores are very experimental,
1102# user should be ready to assist in debugging if problems arise.
1103options 	P1003_1B_SEMAPHORES
1104
1105# POSIX message queue
1106options 	P1003_1B_MQUEUE
1107
1108#####################################################################
1109# SECURITY POLICY PARAMETERS
1110
1111# Support for BSM audit
1112options 	AUDIT
1113
1114# Support for Mandatory Access Control (MAC):
1115options 	MAC
1116options 	MAC_BIBA
1117options 	MAC_BSDEXTENDED
1118options 	MAC_IFOFF
1119options 	MAC_LOMAC
1120options 	MAC_MLS
1121options 	MAC_NONE
1122options 	MAC_PARTITION
1123options 	MAC_PORTACL
1124options 	MAC_SEEOTHERUIDS
1125options 	MAC_STUB
1126options 	MAC_TEST
1127
1128
1129#####################################################################
1130# CLOCK OPTIONS
1131
1132# The granularity of operation is controlled by the kernel option HZ whose
1133# default value (1000 on most architectures) means a granularity of 1ms
1134# (1s/HZ).  Historically, the default was 100, but finer granularity is
1135# required for DUMMYNET and other systems on modern hardware.  There are
1136# reasonable arguments that HZ should, in fact, be 100 still; consider,
1137# that reducing the granularity too much might cause excessive overhead in
1138# clock interrupt processing, potentially causing ticks to be missed and thus
1139# actually reducing the accuracy of operation.
1140
1141options 	HZ=100
1142
1143# Enable support for the kernel PLL to use an external PPS signal,
1144# under supervision of [x]ntpd(8)
1145# More info in ntpd documentation: http://www.eecis.udel.edu/~ntp
1146
1147options 	PPS_SYNC
1148
1149
1150#####################################################################
1151# SCSI DEVICES
1152
1153# SCSI DEVICE CONFIGURATION
1154
1155# The SCSI subsystem consists of the `base' SCSI code, a number of
1156# high-level SCSI device `type' drivers, and the low-level host-adapter
1157# device drivers.  The host adapters are listed in the ISA and PCI
1158# device configuration sections below.
1159#
1160# It is possible to wire down your SCSI devices so that a given bus,
1161# target, and LUN always come on line as the same device unit.  In
1162# earlier versions the unit numbers were assigned in the order that
1163# the devices were probed on the SCSI bus.  This means that if you
1164# removed a disk drive, you may have had to rewrite your /etc/fstab
1165# file, and also that you had to be careful when adding a new disk
1166# as it may have been probed earlier and moved your device configuration
1167# around.  (See also option GEOM_VOL for a different solution to this
1168# problem.)
1169
1170# This old behavior is maintained as the default behavior.  The unit
1171# assignment begins with the first non-wired down unit for a device
1172# type.  For example, if you wire a disk as "da3" then the first
1173# non-wired disk will be assigned da4.
1174
1175# The syntax for wiring down devices is:
1176
1177hint.scbus.0.at="ahc0"
1178hint.scbus.1.at="ahc1"
1179hint.scbus.1.bus="0"
1180hint.scbus.3.at="ahc2"
1181hint.scbus.3.bus="0"
1182hint.scbus.2.at="ahc2"
1183hint.scbus.2.bus="1"
1184hint.da.0.at="scbus0"
1185hint.da.0.target="0"
1186hint.da.0.unit="0"
1187hint.da.1.at="scbus3"
1188hint.da.1.target="1"
1189hint.da.2.at="scbus2"
1190hint.da.2.target="3"
1191hint.sa.1.at="scbus1"
1192hint.sa.1.target="6"
1193
1194# "units" (SCSI logical unit number) that are not specified are
1195# treated as if specified as LUN 0.
1196
1197# All SCSI devices allocate as many units as are required.
1198
1199# The ch driver drives SCSI Media Changer ("jukebox") devices.
1200#
1201# The da driver drives SCSI Direct Access ("disk") and Optical Media
1202# ("WORM") devices.
1203#
1204# The sa driver drives SCSI Sequential Access ("tape") devices.
1205#
1206# The cd driver drives SCSI Read Only Direct Access ("cd") devices.
1207#
1208# The ses driver drives SCSI Environment Services ("ses") and
1209# SAF-TE ("SCSI Accessible Fault-Tolerant Enclosure") devices.
1210#
1211# The pt driver drives SCSI Processor devices.
1212#
1213# The sg driver provides a passthrough API that is compatible with the
1214# Linux SG driver.  It will work in conjunction with the COMPAT_LINUX
1215# option to run linux SG apps.  It can also stand on its own and provide
1216# source level API compatiblity for porting apps to FreeBSD.
1217#
1218# Target Mode support is provided here but also requires that a SIM
1219# (SCSI Host Adapter Driver) provide support as well.
1220#
1221# The targ driver provides target mode support as a Processor type device.
1222# It exists to give the minimal context necessary to respond to Inquiry
1223# commands. There is a sample user application that shows how the rest
1224# of the command support might be done in /usr/share/examples/scsi_target.
1225#
1226# The targbh driver provides target mode support and exists to respond
1227# to incoming commands that do not otherwise have a logical unit assigned
1228# to them.
1229#
1230# The "unknown" device (uk? in pre-2.0.5) is now part of the base SCSI
1231# configuration as the "pass" driver.
1232
1233device		scbus		#base SCSI code
1234device		ch		#SCSI media changers
1235device		da		#SCSI direct access devices (aka disks)
1236device		sa		#SCSI tapes
1237device		cd		#SCSI CD-ROMs
1238device		ses		#SCSI Environmental Services (and SAF-TE)
1239device		pt		#SCSI processor
1240device		targ		#SCSI Target Mode Code
1241device		targbh		#SCSI Target Mode Blackhole Device
1242device		pass		#CAM passthrough driver
1243device		sg		#Linux SCSI passthrough
1244
1245# CAM OPTIONS:
1246# debugging options:
1247# -- NOTE --  If you specify one of the bus/target/lun options, you must
1248#             specify them all!
1249# CAMDEBUG: When defined enables debugging macros
1250# CAM_DEBUG_BUS:  Debug the given bus.  Use -1 to debug all busses.
1251# CAM_DEBUG_TARGET:  Debug the given target.  Use -1 to debug all targets.
1252# CAM_DEBUG_LUN:  Debug the given lun.  Use -1 to debug all luns.
1253# CAM_DEBUG_FLAGS:  OR together CAM_DEBUG_INFO, CAM_DEBUG_TRACE,
1254#                   CAM_DEBUG_SUBTRACE, and CAM_DEBUG_CDB
1255#
1256# CAM_MAX_HIGHPOWER: Maximum number of concurrent high power (start unit) cmds
1257# SCSI_NO_SENSE_STRINGS: When defined disables sense descriptions
1258# SCSI_NO_OP_STRINGS: When defined disables opcode descriptions
1259# SCSI_DELAY: The number of MILLISECONDS to freeze the SIM (scsi adapter)
1260#             queue after a bus reset, and the number of milliseconds to
1261#             freeze the device queue after a bus device reset.  This
1262#             can be changed at boot and runtime with the
1263#             kern.cam.scsi_delay tunable/sysctl.
1264options 	CAMDEBUG
1265options 	CAM_DEBUG_BUS=-1
1266options 	CAM_DEBUG_TARGET=-1
1267options 	CAM_DEBUG_LUN=-1
1268options 	CAM_DEBUG_FLAGS=(CAM_DEBUG_INFO|CAM_DEBUG_TRACE|CAM_DEBUG_CDB)
1269options 	CAM_MAX_HIGHPOWER=4
1270options 	SCSI_NO_SENSE_STRINGS
1271options 	SCSI_NO_OP_STRINGS
1272options 	SCSI_DELAY=5000	# Be pessimistic about Joe SCSI device
1273
1274# Options for the CAM CDROM driver:
1275# CHANGER_MIN_BUSY_SECONDS: Guaranteed minimum time quantum for a changer LUN
1276# CHANGER_MAX_BUSY_SECONDS: Maximum time quantum per changer LUN, only
1277#                           enforced if there is I/O waiting for another LUN
1278# The compiled in defaults for these variables are 2 and 10 seconds,
1279# respectively.
1280#
1281# These can also be changed on the fly with the following sysctl variables:
1282# kern.cam.cd.changer.min_busy_seconds
1283# kern.cam.cd.changer.max_busy_seconds
1284#
1285options 	CHANGER_MIN_BUSY_SECONDS=2
1286options 	CHANGER_MAX_BUSY_SECONDS=10
1287
1288# Options for the CAM sequential access driver:
1289# SA_IO_TIMEOUT: Timeout for read/write/wfm  operations, in minutes
1290# SA_SPACE_TIMEOUT: Timeout for space operations, in minutes
1291# SA_REWIND_TIMEOUT: Timeout for rewind operations, in minutes
1292# SA_ERASE_TIMEOUT: Timeout for erase operations, in minutes
1293# SA_1FM_AT_EOD: Default to model which only has a default one filemark at EOT.
1294options 	SA_IO_TIMEOUT=4
1295options 	SA_SPACE_TIMEOUT=60
1296options 	SA_REWIND_TIMEOUT=(2*60)
1297options 	SA_ERASE_TIMEOUT=(4*60)
1298options 	SA_1FM_AT_EOD
1299
1300# Optional timeout for the CAM processor target (pt) device
1301# This is specified in seconds.  The default is 60 seconds.
1302options 	SCSI_PT_DEFAULT_TIMEOUT=60
1303
1304# Optional enable of doing SES passthrough on other devices (e.g., disks)
1305#
1306# Normally disabled because a lot of newer SCSI disks report themselves
1307# as having SES capabilities, but this can then clot up attempts to build
1308# build a topology with the SES device that's on the box these drives
1309# are in....
1310options 	SES_ENABLE_PASSTHROUGH
1311
1312
1313#####################################################################
1314# MISCELLANEOUS DEVICES AND OPTIONS
1315
1316device		pty		#BSD-style compatibility pseudo ttys
1317device		nmdm		#back-to-back tty devices
1318device		md		#Memory/malloc disk
1319device		snp		#Snoop device - to look at pty/vty/etc..
1320device		ccd		#Concatenated disk driver
1321device		firmware	#firmware(9) support
1322
1323# Kernel side iconv library
1324options 	LIBICONV
1325
1326# Size of the kernel message buffer.  Should be N * pagesize.
1327options 	MSGBUF_SIZE=40960
1328
1329
1330#####################################################################
1331# HARDWARE DEVICE CONFIGURATION
1332
1333# For ISA the required hints are listed.
1334# EISA, MCA, PCI, CardBus, SD/MMC and pccard are self identifying buses, so
1335# no hints are needed.
1336
1337#
1338# Mandatory devices:
1339#
1340
1341# These options are valid for other keyboard drivers as well.
1342options 	KBD_DISABLE_KEYMAP_LOAD	# refuse to load a keymap
1343options 	KBD_INSTALL_CDEV	# install a CDEV entry in /dev
1344
1345options 	FB_DEBUG		# Frame buffer debugging
1346
1347device		splash			# Splash screen and screen saver support
1348
1349# Various screen savers.
1350device		blank_saver
1351device		daemon_saver
1352device		dragon_saver
1353device		fade_saver
1354device		fire_saver
1355device		green_saver
1356device		logo_saver
1357device		rain_saver
1358device		snake_saver
1359device		star_saver
1360device		warp_saver
1361
1362# The syscons console driver (SCO color console compatible).
1363device		sc
1364hint.sc.0.at="isa"
1365options 	MAXCONS=16		# number of virtual consoles
1366options 	SC_ALT_MOUSE_IMAGE	# simplified mouse cursor in text mode
1367options 	SC_DFLT_FONT		# compile font in
1368makeoptions	SC_DFLT_FONT=cp850
1369options 	SC_DISABLE_KDBKEY	# disable `debug' key
1370options 	SC_DISABLE_REBOOT	# disable reboot key sequence
1371options 	SC_HISTORY_SIZE=200	# number of history buffer lines
1372options 	SC_MOUSE_CHAR=0x3	# char code for text mode mouse cursor
1373options 	SC_PIXEL_MODE		# add support for the raster text mode
1374
1375# The following options will let you change the default colors of syscons.
1376options 	SC_NORM_ATTR=(FG_GREEN|BG_BLACK)
1377options 	SC_NORM_REV_ATTR=(FG_YELLOW|BG_GREEN)
1378options 	SC_KERNEL_CONS_ATTR=(FG_RED|BG_BLACK)
1379options 	SC_KERNEL_CONS_REV_ATTR=(FG_BLACK|BG_RED)
1380
1381# The following options will let you change the default behaviour of
1382# cut-n-paste feature
1383options 	SC_CUT_SPACES2TABS	# convert leading spaces into tabs
1384options 	SC_CUT_SEPCHARS=\"x09\"	# set of characters that delimit words
1385					# (default is single space - \"x20\")
1386
1387# If you have a two button mouse, you may want to add the following option
1388# to use the right button of the mouse to paste text.
1389options 	SC_TWOBUTTON_MOUSE
1390
1391# You can selectively disable features in syscons.
1392options 	SC_NO_CUTPASTE
1393options 	SC_NO_FONT_LOADING
1394options 	SC_NO_HISTORY
1395options 	SC_NO_MODE_CHANGE
1396options 	SC_NO_SYSMOUSE
1397options 	SC_NO_SUSPEND_VTYSWITCH
1398
1399# `flags' for sc
1400#	0x80	Put the video card in the VESA 800x600 dots, 16 color mode
1401#	0x100	Probe for a keyboard device periodically if one is not present
1402
1403# Enable experimental features of the syscons terminal emulator (teken).
1404options 	TEKEN_UTF8		# UTF-8 output handling
1405options 	TEKEN_XTERM		# xterm-style terminal emulation
1406
1407#
1408# Optional devices:
1409#
1410
1411#
1412# SCSI host adapters:
1413#
1414# adv: All Narrow SCSI bus AdvanSys controllers.
1415# adw: Second Generation AdvanSys controllers including the ADV940UW.
1416# aha: Adaptec 154x/1535/1640
1417# ahb: Adaptec 174x EISA controllers
1418# ahc: Adaptec 274x/284x/2910/293x/294x/394x/3950x/3960x/398X/4944/
1419#      19160x/29160x, aic7770/aic78xx
1420# ahd: Adaptec 29320/39320 Controllers.
1421# aic: Adaptec 6260/6360, APA-1460 (PC Card), NEC PC9801-100 (C-BUS)
1422# amd: Support for the AMD 53C974 SCSI host adapter chip as found on devices
1423#      such as the Tekram DC-390(T).
1424# bt:  Most Buslogic controllers: including BT-445, BT-54x, BT-64x, BT-74x,
1425#      BT-75x, BT-946, BT-948, BT-956, BT-958, SDC3211B, SDC3211F, SDC3222F
1426# esp: NCR53c9x.  Only for SBUS hardware right now.
1427# isp: Qlogic ISP 1020, 1040 and 1040B PCI SCSI host adapters,
1428#      ISP 1240 Dual Ultra SCSI, ISP 1080 and 1280 (Dual) Ultra2,
1429#      ISP 12160 Ultra3 SCSI,
1430#      Qlogic ISP 2100 and ISP 2200 1Gb Fibre Channel host adapters.
1431#      Qlogic ISP 2300 and ISP 2312 2Gb Fibre Channel host adapters.
1432#      Qlogic ISP 2322 and ISP 6322 2Gb Fibre Channel host adapters.
1433# ispfw: Firmware module for Qlogic host adapters
1434# mpt: LSI-Logic MPT/Fusion 53c1020 or 53c1030 Ultra4
1435#      or FC9x9 Fibre Channel host adapters.
1436# ncr: NCR 53C810, 53C825 self-contained SCSI host adapters.
1437# sym: Symbios/Logic 53C8XX family of PCI-SCSI I/O processors:
1438#      53C810, 53C810A, 53C815, 53C825,  53C825A, 53C860, 53C875,
1439#      53C876, 53C885,  53C895, 53C895A, 53C896,  53C897, 53C1510D,
1440#      53C1010-33, 53C1010-66.
1441# trm: Tekram DC395U/UW/F DC315U adapters.
1442# wds: WD7000
1443
1444#
1445# Note that the order is important in order for Buslogic ISA/EISA cards to be
1446# probed correctly.
1447#
1448device		bt
1449hint.bt.0.at="isa"
1450hint.bt.0.port="0x330"
1451device		adv
1452hint.adv.0.at="isa"
1453device		adw
1454device		aha
1455hint.aha.0.at="isa"
1456device		aic
1457hint.aic.0.at="isa"
1458device		ahb
1459device		ahc
1460device		ahd
1461device		amd
1462device		esp
1463device		iscsi_initiator
1464device		isp
1465hint.isp.0.disable="1"
1466hint.isp.0.role="3"
1467hint.isp.0.prefer_iomap="1"
1468hint.isp.0.prefer_memmap="1"
1469hint.isp.0.fwload_disable="1"
1470hint.isp.0.ignore_nvram="1"
1471hint.isp.0.fullduplex="1"
1472hint.isp.0.topology="lport"
1473hint.isp.0.topology="nport"
1474hint.isp.0.topology="lport-only"
1475hint.isp.0.topology="nport-only"
1476# we can't get u_int64_t types, nor can we get strings if it's got
1477# a leading 0x, hence this silly dodge.
1478hint.isp.0.portwnn="w50000000aaaa0000"
1479hint.isp.0.nodewnn="w50000000aaaa0001"
1480device		ispfw
1481device		mpt
1482device		ncr
1483device		sym
1484device		trm
1485device		wds
1486hint.wds.0.at="isa"
1487hint.wds.0.port="0x350"
1488hint.wds.0.irq="11"
1489hint.wds.0.drq="6"
1490
1491# The aic7xxx driver will attempt to use memory mapped I/O for all PCI
1492# controllers that have it configured only if this option is set. Unfortunately,
1493# this doesn't work on some motherboards, which prevents it from being the
1494# default.
1495options 	AHC_ALLOW_MEMIO
1496
1497# Dump the contents of the ahc controller configuration PROM.
1498options 	AHC_DUMP_EEPROM
1499
1500# Bitmap of units to enable targetmode operations.
1501options 	AHC_TMODE_ENABLE
1502
1503# Compile in Aic7xxx Debugging code.
1504options 	AHC_DEBUG
1505
1506# Aic7xxx driver debugging options. See sys/dev/aic7xxx/aic7xxx.h
1507options 	AHC_DEBUG_OPTS
1508
1509# Print register bitfields in debug output.  Adds ~128k to driver
1510# See ahc(4).
1511options 	AHC_REG_PRETTY_PRINT
1512
1513# Compile in aic79xx debugging code.
1514options 	AHD_DEBUG
1515
1516# Aic79xx driver debugging options.  Adds ~215k to driver.  See ahd(4).
1517options 	AHD_DEBUG_OPTS=0xFFFFFFFF
1518
1519# Print human-readable register definitions when debugging
1520options 	AHD_REG_PRETTY_PRINT
1521
1522# Bitmap of units to enable targetmode operations.
1523options 	AHD_TMODE_ENABLE
1524
1525# The adw driver will attempt to use memory mapped I/O for all PCI
1526# controllers that have it configured only if this option is set.
1527options 	ADW_ALLOW_MEMIO
1528
1529# Options used in dev/iscsi (Software iSCSI stack)
1530#
1531options 	ISCSI_INITIATOR_DEBUG=9
1532
1533# Options used in dev/isp/ (Qlogic SCSI/FC driver).
1534#
1535#	ISP_TARGET_MODE		-	enable target mode operation
1536#
1537options 	ISP_TARGET_MODE=1
1538#
1539#	ISP_DEFAULT_ROLES	-	default role
1540#		none=0
1541#		target=1
1542#		initiator=2
1543#		both=3			(not supported currently)
1544#
1545options 	ISP_DEFAULT_ROLES=2
1546
1547# Options used in dev/sym/ (Symbios SCSI driver).
1548#options 	SYM_SETUP_LP_PROBE_MAP	#-Low Priority Probe Map (bits)
1549					# Allows the ncr to take precedence
1550					# 1 (1<<0) -> 810a, 860
1551					# 2 (1<<1) -> 825a, 875, 885, 895
1552					# 4 (1<<2) -> 895a, 896, 1510d
1553#options 	SYM_SETUP_SCSI_DIFF	#-HVD support for 825a, 875, 885
1554					# disabled:0 (default), enabled:1
1555#options 	SYM_SETUP_PCI_PARITY	#-PCI parity checking
1556					# disabled:0, enabled:1 (default)
1557#options 	SYM_SETUP_MAX_LUN	#-Number of LUNs supported
1558					# default:8, range:[1..64]
1559
1560# The 'dpt' driver provides support for old DPT controllers (http://www.dpt.com/).
1561# These have hardware RAID-{0,1,5} support, and do multi-initiator I/O.
1562# The DPT controllers are commonly re-licensed under other brand-names -
1563# some controllers by Olivetti, Dec, HP, AT&T, SNI, AST, Alphatronic, NEC and
1564# Compaq are actually DPT controllers.
1565#
1566# See src/sys/dev/dpt for debugging and other subtle options.
1567#   DPT_MEASURE_PERFORMANCE Enables a set of (semi)invasive metrics. Various
1568#                           instruments are enabled.  The tools in
1569#                           /usr/sbin/dpt_* assume these to be enabled.
1570#   DPT_HANDLE_TIMEOUTS     Normally device timeouts are handled by the DPT.
1571#                           If you ant the driver to handle timeouts, enable
1572#                           this option.  If your system is very busy, this
1573#                           option will create more trouble than solve.
1574#   DPT_TIMEOUT_FACTOR      Used to compute the excessive amount of time to
1575#                           wait when timing out with the above option.
1576#  DPT_DEBUG_xxxx           These are controllable from sys/dev/dpt/dpt.h
1577#  DPT_LOST_IRQ             When enabled, will try, once per second, to catch
1578#                           any interrupt that got lost.  Seems to help in some
1579#                           DPT-firmware/Motherboard combinations.  Minimal
1580#                           cost, great benefit.
1581#  DPT_RESET_HBA            Make "reset" actually reset the controller
1582#                           instead of fudging it.  Only enable this if you
1583#			    are 100% certain you need it.
1584
1585device		dpt
1586
1587# DPT options
1588#!CAM# options 	DPT_MEASURE_PERFORMANCE
1589#!CAM# options 	DPT_HANDLE_TIMEOUTS
1590options 	DPT_TIMEOUT_FACTOR=4
1591options 	DPT_LOST_IRQ
1592options 	DPT_RESET_HBA
1593
1594#
1595# Compaq "CISS" RAID controllers (SmartRAID 5* series)
1596# These controllers have a SCSI-like interface, and require the
1597# CAM infrastructure.
1598#
1599device		ciss
1600
1601#
1602# Intel Integrated RAID controllers.
1603# This driver was developed and is maintained by Intel.  Contacts
1604# at Intel for this driver are
1605# "Kannanthanam, Boji T" <boji.t.kannanthanam@intel.com> and
1606# "Leubner, Achim" <achim.leubner@intel.com>.
1607#
1608device		iir
1609
1610#
1611# Mylex AcceleRAID and eXtremeRAID controllers with v6 and later
1612# firmware.  These controllers have a SCSI-like interface, and require
1613# the CAM infrastructure.
1614#
1615device		mly
1616
1617#
1618# Compaq Smart RAID, Mylex DAC960 and AMI MegaRAID controllers.  Only
1619# one entry is needed; the code will find and configure all supported
1620# controllers.
1621#
1622device		ida		# Compaq Smart RAID
1623device		mlx		# Mylex DAC960
1624device		amr		# AMI MegaRAID
1625device		amrp		# SCSI Passthrough interface (optional, CAM req.)
1626device		mfi		# LSI MegaRAID SAS
1627device		mfip		# LSI MegaRAID SAS passthrough, requires CAM
1628options 	MFI_DEBUG
1629
1630#
1631# 3ware ATA RAID
1632#
1633device		twe		# 3ware ATA RAID
1634
1635#
1636# The 'ATA' driver supports all ATA and ATAPI devices, including PC Card
1637# devices. You only need one "device ata" for it to find all
1638# PCI and PC Card ATA/ATAPI devices on modern machines.
1639device		ata
1640device		atadisk		# ATA disk drives
1641device		ataraid		# ATA RAID drives
1642device		atapicd		# ATAPI CDROM drives
1643device		atapifd		# ATAPI floppy drives
1644device		atapist		# ATAPI tape drives
1645device		atapicam	# emulate ATAPI devices as SCSI ditto via CAM
1646				# needs CAM to be present (scbus & pass)
1647#
1648# For older non-PCI, non-PnPBIOS systems, these are the hints lines to add:
1649hint.ata.0.at="isa"
1650hint.ata.0.port="0x1f0"
1651hint.ata.0.irq="14"
1652hint.ata.1.at="isa"
1653hint.ata.1.port="0x170"
1654hint.ata.1.irq="15"
1655
1656#
1657# The following options are valid on the ATA driver:
1658#
1659# ATA_STATIC_ID:	controller numbering is static ie depends on location
1660#			else the device numbers are dynamically allocated.
1661
1662options 	ATA_STATIC_ID
1663
1664#
1665# Standard floppy disk controllers and floppy tapes, supports
1666# the Y-E DATA External FDD (PC Card)
1667#
1668device		fdc
1669hint.fdc.0.at="isa"
1670hint.fdc.0.port="0x3F0"
1671hint.fdc.0.irq="6"
1672hint.fdc.0.drq="2"
1673#
1674# FDC_DEBUG enables floppy debugging.  Since the debug output is huge, you
1675# gotta turn it actually on by setting the variable fd_debug with DDB,
1676# however.
1677options 	FDC_DEBUG
1678#
1679# Activate this line if you happen to have an Insight floppy tape.
1680# Probing them proved to be dangerous for people with floppy disks only,
1681# so it's "hidden" behind a flag:
1682#hint.fdc.0.flags="1"
1683
1684# Specify floppy devices
1685hint.fd.0.at="fdc0"
1686hint.fd.0.drive="0"
1687hint.fd.1.at="fdc0"
1688hint.fd.1.drive="1"
1689
1690#
1691# uart: newbusified driver for serial interfaces.  It consolidates the sio(4),
1692#	sab(4) and zs(4) drivers.
1693#
1694device		uart
1695
1696# Options for uart(4)
1697options 	UART_PPS_ON_CTS		# Do time pulse capturing using CTS
1698					# instead of DCD.
1699
1700# The following hint should only be used for pure ISA devices.  It is not
1701# needed otherwise.  Use of hints is strongly discouraged.
1702hint.uart.0.at="isa"
1703
1704# The following 3 hints are used when the UART is a system device (i.e., a
1705# console or debug port), but only on platforms that don't have any other
1706# means to pass the information to the kernel.  The unit number of the hint
1707# is only used to bundle the hints together.  There is no relation to the
1708# unit number of the probed UART.
1709hint.uart.0.port="0x3f8"
1710hint.uart.0.flags="0x10"
1711hint.uart.0.baud="115200"
1712
1713# `flags' for serial drivers that support consoles like sio(4) and uart(4):
1714#	0x10	enable console support for this unit.  Other console flags
1715#		(if applicable) are ignored unless this is set.  Enabling
1716#		console support does not make the unit the preferred console.
1717#		Boot with -h or set boot_serial=YES in the loader.  For sio(4)
1718#		specifically, the 0x20 flag can also be set (see above).
1719#		Currently, at most one unit can have console support; the
1720#		first one (in config file order) with this flag set is
1721#		preferred.  Setting this flag for sio0 gives the old behaviour.
1722#	0x80	use this port for serial line gdb support in ddb.  Also known
1723#		as debug port.
1724#
1725
1726# Options for serial drivers that support consoles:
1727options 	BREAK_TO_DEBUGGER	# A BREAK on a serial console goes to
1728					# ddb, if available.
1729
1730# Solaris implements a new BREAK which is initiated by a character
1731# sequence CR ~ ^b which is similar to a familiar pattern used on
1732# Sun servers by the Remote Console.  There are FreeBSD extentions:
1733# CR ~ ^p requests force panic and CR ~ ^r requests a clean reboot.
1734options 	ALT_BREAK_TO_DEBUGGER
1735
1736# Serial Communications Controller
1737# Supports the Siemens SAB 82532 and Zilog Z8530 multi-channel
1738# communications controllers.
1739device		scc
1740
1741# PCI Universal Communications driver
1742# Supports various multi port PCI I/O cards.
1743device		puc
1744
1745#
1746# Network interfaces:
1747#
1748# MII bus support is required for some PCI 10/100 ethernet NICs,
1749# namely those which use MII-compliant transceivers or implement
1750# transceiver control interfaces that operate like an MII. Adding
1751# "device miibus" to the kernel config pulls in support for
1752# the generic miibus API and all of the PHY drivers, including a
1753# generic one for PHYs that aren't specifically handled by an
1754# individual driver.
1755device		miibus
1756
1757# an:   Aironet 4500/4800 802.11 wireless adapters. Supports the PCMCIA,
1758#       PCI and ISA varieties.
1759# ae:   Support for gigabit ethernet adapters based on the Attansic/Atheros
1760#       L2 PCI-Express FastEthernet controllers.
1761# age:  Support for gigabit ethernet adapters based on the Attansic/Atheros
1762#       L1 PCI express gigabit ethernet controllers.
1763# ale:  Support for Atheros AR8121/AR8113/AR8114 PCIe ethernet controllers.
1764# bce:	Broadcom NetXtreme II (BCM5706/BCM5708) PCI/PCIe Gigabit Ethernet
1765#       adapters.
1766# bfe:	Broadcom BCM4401 Ethernet adapter.
1767# bge:	Support for gigabit ethernet adapters based on the Broadcom
1768#	BCM570x family of controllers, including the 3Com 3c996-T,
1769#	the Netgear GA302T, the SysKonnect SK-9D21 and SK-9D41, and
1770#	the embedded gigE NICs on Dell PowerEdge 2550 servers.
1771# cm:	Arcnet SMC COM90c26 / SMC COM90c56
1772#	(and SMC COM90c66 in '56 compatibility mode) adapters.
1773# dc:   Support for PCI fast ethernet adapters based on the DEC/Intel 21143
1774#       and various workalikes including:
1775#       the ADMtek AL981 Comet and AN985 Centaur, the ASIX Electronics
1776#       AX88140A and AX88141, the Davicom DM9100 and DM9102, the Lite-On
1777#       82c168 and 82c169 PNIC, the Lite-On/Macronix LC82C115 PNIC II
1778#       and the Macronix 98713/98713A/98715/98715A/98725 PMAC. This driver
1779#       replaces the old al, ax, dm, pn and mx drivers.  List of brands:
1780#       Digital DE500-BA, Kingston KNE100TX, D-Link DFE-570TX, SOHOware SFA110,
1781#       SVEC PN102-TX, CNet Pro110B, 120A, and 120B, Compex RL100-TX,
1782#       LinkSys LNE100TX, LNE100TX V2.0, Jaton XpressNet, Alfa Inc GFC2204,
1783#       KNE110TX.
1784# de:   Digital Equipment DC21040
1785# em:   Intel Pro/1000 Gigabit Ethernet 82542, 82543, 82544 based adapters.
1786# igb:  Intel Pro/1000 PCI Express Gigabit Ethernet: 82575 and later adapters.
1787# ep:   3Com 3C509, 3C529, 3C556, 3C562D, 3C563D, 3C572, 3C574X, 3C579, 3C589
1788#       and PC Card devices using these chipsets.
1789# ex:   Intel EtherExpress Pro/10 and other i82595-based adapters,
1790#       Olicom Ethernet PC Card devices.
1791# fe:   Fujitsu MB86960A/MB86965A Ethernet
1792# fea:  DEC DEFEA EISA FDDI adapter
1793# fpa:  Support for the Digital DEFPA PCI FDDI. `device fddi' is also needed.
1794# fxp:  Intel EtherExpress Pro/100B
1795#	(hint of prefer_iomap can be done to prefer I/O instead of Mem mapping)
1796# gem:  Apple GMAC/Sun ERI/Sun GEM
1797# hme:  Sun HME (Happy Meal Ethernet)
1798# jme:  JMicron JMC260 Fast Ethernet/JMC250 Gigabit Ethernet based adapters.
1799# le:   AMD Am7900 LANCE and Am79C9xx PCnet
1800# lge:	Support for PCI gigabit ethernet adapters based on the Level 1
1801#	LXT1001 NetCellerator chipset. This includes the D-Link DGE-500SX,
1802#	SMC TigerCard 1000 (SMC9462SX), and some Addtron cards.
1803# msk:	Support for gigabit ethernet adapters based on the Marvell/SysKonnect
1804#	Yukon II Gigabit controllers, including 88E8021, 88E8022, 88E8061,
1805#	88E8062, 88E8035, 88E8036, 88E8038, 88E8050, 88E8052, 88E8053,
1806#	88E8055, 88E8056 and D-Link 560T/550SX.
1807# lmc:	Support for the LMC/SBE wide-area network interface cards.
1808# my:	Myson Fast Ethernet (MTD80X, MTD89X)
1809# nge:	Support for PCI gigabit ethernet adapters based on the National
1810#	Semiconductor DP83820 and DP83821 chipset. This includes the
1811#	SMC EZ Card 1000 (SMC9462TX), D-Link DGE-500T, Asante FriendlyNet
1812#	GigaNIX 1000TA and 1000TPC, the Addtron AEG320T, the Surecom
1813#	EP-320G-TX and the Netgear GA622T.
1814# pcn:	Support for PCI fast ethernet adapters based on the AMD Am79c97x
1815#	PCnet-FAST, PCnet-FAST+, PCnet-FAST III, PCnet-PRO and PCnet-Home
1816#	chipsets. These can also be handled by the le(4) driver if the
1817#	pcn(4) driver is left out of the kernel. The le(4) driver does not
1818#	support the additional features like the MII bus and burst mode of
1819#	the PCnet-FAST and greater chipsets though.
1820# re:   RealTek 8139C+/8169/816xS/811xS/8101E PCI/PCIe Ethernet adapter
1821# rl:   Support for PCI fast ethernet adapters based on the RealTek 8129/8139
1822#       chipset.  Note that the RealTek driver defaults to using programmed
1823#       I/O to do register accesses because memory mapped mode seems to cause
1824#       severe lockups on SMP hardware.  This driver also supports the
1825#       Accton EN1207D `Cheetah' adapter, which uses a chip called
1826#       the MPX 5030/5038, which is either a RealTek in disguise or a
1827#       RealTek workalike.  Note that the D-Link DFE-530TX+ uses the RealTek
1828#       chipset and is supported by this driver, not the 'vr' driver.
1829# sf:   Support for Adaptec Duralink PCI fast ethernet adapters based on the
1830#       Adaptec AIC-6915 "starfire" controller.
1831#       This includes dual and quad port cards, as well as one 100baseFX card.
1832#       Most of these are 64-bit PCI devices, except for one single port
1833#       card which is 32-bit.
1834# sis:  Support for NICs based on the Silicon Integrated Systems SiS 900,
1835#       SiS 7016 and NS DP83815 PCI fast ethernet controller chips.
1836# sk:   Support for the SysKonnect SK-984x series PCI gigabit ethernet NICs.
1837#       This includes the SK-9841 and SK-9842 single port cards (single mode
1838#       and multimode fiber) and the SK-9843 and SK-9844 dual port cards
1839#       (also single mode and multimode).
1840#       The driver will autodetect the number of ports on the card and
1841#       attach each one as a separate network interface.
1842# sn:   Support for ISA and PC Card Ethernet devices using the
1843#       SMC91C90/92/94/95 chips.
1844# ste:  Sundance Technologies ST201 PCI fast ethernet controller, includes
1845#       the D-Link DFE-550TX.
1846# stge: Support for gigabit ethernet adapters based on the Sundance/Tamarack
1847#       TC9021 family of controllers, including the Sundance ST2021/ST2023,
1848#       the Sundance/Tamarack TC9021, the D-Link DL-4000 and ASUS NX1101.
1849# ti:   Support for PCI gigabit ethernet NICs based on the Alteon Networks
1850#       Tigon 1 and Tigon 2 chipsets.  This includes the Alteon AceNIC, the
1851#       3Com 3c985, the Netgear GA620 and various others.  Note that you will
1852#       probably want to bump up kern.ipc.nmbclusters a lot to use this driver.
1853# tl:   Support for the Texas Instruments TNETE100 series 'ThunderLAN'
1854#       cards and integrated ethernet controllers.  This includes several
1855#       Compaq Netelligent 10/100 cards and the built-in ethernet controllers
1856#       in several Compaq Prosignia, Proliant and Deskpro systems.  It also
1857#       supports several Olicom 10Mbps and 10/100 boards.
1858# tx:   SMC 9432 TX, BTX and FTX cards. (SMC EtherPower II series)
1859# txp:	Support for 3Com 3cR990 cards with the "Typhoon" chipset
1860# vr:   Support for various fast ethernet adapters based on the VIA
1861#       Technologies VT3043 `Rhine I' and VT86C100A `Rhine II' chips,
1862#       including the D-Link DFE530TX (see 'rl' for DFE530TX+), the Hawking
1863#       Technologies PN102TX, and the AOpen/Acer ALN-320.
1864# vx:   3Com 3C590 and 3C595
1865# wb:   Support for fast ethernet adapters based on the Winbond W89C840F chip.
1866#       Note: this is not the same as the Winbond W89C940F, which is a
1867#       NE2000 clone.
1868# wi:   Lucent WaveLAN/IEEE 802.11 PCMCIA adapters. Note: this supports both
1869#       the PCMCIA and ISA cards: the ISA card is really a PCMCIA to ISA
1870#       bridge with a PCMCIA adapter plugged into it.
1871# xe:   Xircom/Intel EtherExpress Pro100/16 PC Card ethernet controller,
1872#       Accton Fast EtherCard-16, Compaq Netelligent 10/100 PC Card,
1873#       Toshiba 10/100 Ethernet PC Card, Xircom 16-bit Ethernet + Modem 56
1874# xl:   Support for the 3Com 3c900, 3c905, 3c905B and 3c905C (Fast)
1875#       Etherlink XL cards and integrated controllers.  This includes the
1876#       integrated 3c905B-TX chips in certain Dell Optiplex and Dell
1877#       Precision desktop machines and the integrated 3c905-TX chips
1878#       in Dell Latitude laptop docking stations.
1879#       Also supported: 3Com 3c980(C)-TX, 3Com 3cSOHO100-TX, 3Com 3c450-TX
1880
1881# Order for ISA/EISA devices is important here
1882
1883device		cm
1884hint.cm.0.at="isa"
1885hint.cm.0.port="0x2e0"
1886hint.cm.0.irq="9"
1887hint.cm.0.maddr="0xdc000"
1888device		ep
1889device		ex
1890device		fe
1891hint.fe.0.at="isa"
1892hint.fe.0.port="0x300"
1893device		fea
1894device		sn
1895hint.sn.0.at="isa"
1896hint.sn.0.port="0x300"
1897hint.sn.0.irq="10"
1898device		an
1899device		wi
1900device		xe
1901
1902# PCI Ethernet NICs that use the common MII bus controller code.
1903device		ae		# Attansic/Atheros L2 FastEthernet
1904device		age		# Attansic/Atheros L1 Gigabit Ethernet
1905device		ale		# Atheros AR8121/AR8113/AR8114 Ethernet
1906device		bce		# Broadcom BCM5706/BCM5708 Gigabit Ethernet
1907device		bfe		# Broadcom BCM440x 10/100 Ethernet
1908device		bge		# Broadcom BCM570xx Gigabit Ethernet
1909device		cxgb		# Chelsio T3 10 Gigabit Ethernet
1910device		cxgb_t3fw	# Chelsio T3 10 Gigabit Ethernet firmware
1911device		dc		# DEC/Intel 21143 and various workalikes
1912device		et		# Agere ET1310 10/100/Gigabit Ethernet
1913device		fxp		# Intel EtherExpress PRO/100B (82557, 82558)
1914hint.fxp.0.prefer_iomap="0"
1915device		gem		# Apple GMAC/Sun ERI/Sun GEM
1916device		hme		# Sun HME (Happy Meal Ethernet)
1917device		jme		# JMicron JMC250 Gigabit/JMC260 Fast Ethernet
1918device		lge		# Level 1 LXT1001 gigabit Ethernet
1919device		msk		# Marvell/SysKonnect Yukon II Gigabit Ethernet
1920device		my		# Myson Fast Ethernet (MTD80X, MTD89X)
1921device		nge		# NatSemi DP83820 gigabit Ethernet
1922device		re		# RealTek 8139C+/8169/8169S/8110S
1923device		rl		# RealTek 8129/8139
1924device		pcn		# AMD Am79C97x PCI 10/100 NICs
1925device		sf		# Adaptec AIC-6915 (``Starfire'')
1926device		sis		# Silicon Integrated Systems SiS 900/SiS 7016
1927device		sk		# SysKonnect SK-984x & SK-982x gigabit Ethernet
1928device		ste		# Sundance ST201 (D-Link DFE-550TX)
1929device		stge		# Sundance/Tamarack TC9021 gigabit Ethernet
1930device		tl		# Texas Instruments ThunderLAN
1931device		tx		# SMC EtherPower II (83c170 ``EPIC'')
1932device		vr		# VIA Rhine, Rhine II
1933device		wb		# Winbond W89C840F
1934device		xl		# 3Com 3c90x (``Boomerang'', ``Cyclone'')
1935
1936# PCI Ethernet NICs.
1937device		de		# DEC/Intel DC21x4x (``Tulip'')
1938device		em		# Intel Pro/1000 Gigabit Ethernet
1939device		igb		# Intel Pro/1000 PCIE Gigabit Ethernet
1940device		ixgbe		# Intel Pro/10Gbe PCIE Ethernet
1941device		le		# AMD Am7900 LANCE and Am79C9xx PCnet
1942device		mxge		# Myricom Myri-10G 10GbE NIC
1943device		nxge		# Neterion Xframe 10GbE Server/Storage Adapter
1944device		ti		# Alteon Networks Tigon I/II gigabit Ethernet
1945device		txp		# 3Com 3cR990 (``Typhoon'')
1946device		vx		# 3Com 3c590, 3c595 (``Vortex'')
1947
1948# PCI FDDI NICs.
1949device		fpa
1950
1951# PCI WAN adapters.
1952device		lmc
1953
1954# Use "private" jumbo buffers allocated exclusively for the ti(4) driver.
1955# This option is incompatible with the TI_JUMBO_HDRSPLIT option below.
1956#options 	TI_PRIVATE_JUMBOS
1957# Turn on the header splitting option for the ti(4) driver firmware.  This
1958# only works for Tigon II chips, and has no effect for Tigon I chips.
1959options 	TI_JUMBO_HDRSPLIT
1960
1961# These two options allow manipulating the mbuf cluster size and mbuf size,
1962# respectively.  Be very careful with NIC driver modules when changing
1963# these from their default values, because that can potentially cause a
1964# mismatch between the mbuf size assumed by the kernel and the mbuf size
1965# assumed by a module.  The only driver that currently has the ability to
1966# detect a mismatch is ti(4).
1967options 	MCLSHIFT=12	# mbuf cluster shift in bits, 12 == 4KB
1968options 	MSIZE=512	# mbuf size in bytes
1969
1970#
1971# ATM related options (Cranor version)
1972# (note: this driver cannot be used with the HARP ATM stack)
1973#
1974# The `en' device provides support for Efficient Networks (ENI)
1975# ENI-155 PCI midway cards, and the Adaptec 155Mbps PCI ATM cards (ANA-59x0).
1976#
1977# The `hatm' device provides support for Fore/Marconi HE155 and HE622
1978# ATM PCI cards.
1979#
1980# The `fatm' device provides support for Fore PCA200E ATM PCI cards.
1981#
1982# The `patm' device provides support for IDT77252 based cards like
1983# ProSum's ProATM-155 and ProATM-25 and IDT's evaluation boards.
1984#
1985# atm device provides generic atm functions and is required for
1986# atm devices.
1987# NATM enables the netnatm protocol family that can be used to
1988# bypass TCP/IP.
1989#
1990# utopia provides the access to the ATM PHY chips and is required for en,
1991# hatm and fatm.
1992#
1993# the current driver supports only PVC operations (no atm-arp, no multicast).
1994# for more details, please read the original documents at
1995# http://www.ccrc.wustl.edu/pub/chuck/tech/bsdatm/bsdatm.html
1996#
1997device		atm
1998device		en
1999device		fatm			#Fore PCA200E
2000device		hatm			#Fore/Marconi HE155/622
2001device		patm			#IDT77252 cards (ProATM and IDT)
2002device		utopia			#ATM PHY driver
2003#options 	NATM			#native ATM
2004
2005options 	LIBMBPOOL		#needed by patm, iatm
2006
2007#
2008# Sound drivers
2009#
2010# sound: The generic sound driver.
2011#
2012
2013device		sound
2014
2015#
2016# snd_*: Device-specific drivers.
2017#
2018# The flags of the device tells the device a bit more info about the
2019# device that normally is obtained through the PnP interface.
2020#	bit  2..0   secondary DMA channel;
2021#	bit  4      set if the board uses two dma channels;
2022#	bit 15..8   board type, overrides autodetection; leave it
2023#		    zero if don't know what to put in (and you don't,
2024#		    since this is unsupported at the moment...).
2025#
2026# snd_ad1816:		Analog Devices AD1816 ISA PnP/non-PnP.
2027# snd_als4000:		Avance Logic ALS4000 PCI.
2028# snd_atiixp:		ATI IXP 200/300/400 PCI.
2029# snd_audiocs:		Crystal Semiconductor CS4231 SBus/EBus. Only
2030#			for sparc64.
2031# snd_cmi:		CMedia CMI8338/CMI8738 PCI.
2032# snd_cs4281:		Crystal Semiconductor CS4281 PCI.
2033# snd_csa:		Crystal Semiconductor CS461x/428x PCI. (except
2034#			4281)
2035# snd_ds1:		Yamaha DS-1 PCI.
2036# snd_emu10k1:		Creative EMU10K1 PCI and EMU10K2 (Audigy) PCI.
2037# snd_emu10kx:		Creative SoundBlaster Live! and Audigy
2038# snd_envy24:		VIA Envy24 and compatible, needs snd_spicds.
2039# snd_envy24ht:		VIA Envy24HT and compatible, needs snd_spicds.
2040# snd_es137x:		Ensoniq AudioPCI ES137x PCI.
2041# snd_ess:		Ensoniq ESS ISA PnP/non-PnP, to be used in
2042#			conjunction with snd_sbc.
2043# snd_fm801:		Forte Media FM801 PCI.
2044# snd_gusc:		Gravis UltraSound ISA PnP/non-PnP.
2045# snd_hda:		Intel High Definition Audio (Controller) and
2046#			compatible.
2047# snd_ich:		Intel ICH AC'97 and some more audio controllers
2048#			embedded in a chipset, for example nVidia
2049#			nForce controllers.
2050# snd_maestro:		ESS Technology Maestro-1/2x PCI.
2051# snd_maestro3:		ESS Technology Maestro-3/Allegro PCI.
2052# snd_mss:		Microsoft Sound System ISA PnP/non-PnP.
2053# snd_neomagic:		Neomagic 256 AV/ZX PCI.
2054# snd_sb16:		Creative SoundBlaster16, to be used in
2055#			conjunction with snd_sbc.
2056# snd_sb8:		Creative SoundBlaster (pre-16), to be used in
2057#			conjunction with snd_sbc.
2058# snd_sbc:		Creative SoundBlaster ISA PnP/non-PnP.
2059#			Supports ESS and Avance ISA chips as well.
2060# snd_spicds:		SPI codec driver, needed by Envy24/Envy24HT drivers.
2061# snd_solo:		ESS Solo-1x PCI.
2062# snd_t4dwave:		Trident 4DWave DX/NX PCI, Sis 7018 PCI and Acer Labs
2063#			M5451 PCI.
2064# snd_via8233:		VIA VT8233x PCI.
2065# snd_via82c686:	VIA VT82C686A PCI.
2066# snd_vibes:		S3 Sonicvibes PCI.
2067# snd_uaudio:		USB audio.
2068
2069device		snd_ad1816
2070device		snd_als4000
2071device		snd_atiixp
2072#device		snd_audiocs
2073device		snd_cmi
2074device		snd_cs4281
2075device		snd_csa
2076device		snd_ds1
2077device		snd_emu10k1
2078device		snd_emu10kx
2079device		snd_envy24
2080device		snd_envy24ht
2081device		snd_es137x
2082device		snd_ess
2083device		snd_fm801
2084device		snd_gusc
2085device		snd_hda
2086device		snd_ich
2087device		snd_maestro
2088device		snd_maestro3
2089device		snd_mss
2090device		snd_neomagic
2091device		snd_sb16
2092device		snd_sb8
2093device		snd_sbc
2094device		snd_solo
2095device		snd_spicds
2096device		snd_t4dwave
2097device		snd_via8233
2098device		snd_via82c686
2099device		snd_vibes
2100device		snd_uaudio
2101
2102# For non-PnP sound cards:
2103hint.pcm.0.at="isa"
2104hint.pcm.0.irq="10"
2105hint.pcm.0.drq="1"
2106hint.pcm.0.flags="0x0"
2107hint.sbc.0.at="isa"
2108hint.sbc.0.port="0x220"
2109hint.sbc.0.irq="5"
2110hint.sbc.0.drq="1"
2111hint.sbc.0.flags="0x15"
2112hint.gusc.0.at="isa"
2113hint.gusc.0.port="0x220"
2114hint.gusc.0.irq="5"
2115hint.gusc.0.drq="1"
2116hint.gusc.0.flags="0x13"
2117
2118#
2119# IEEE-488 hardware:
2120# pcii:		PCIIA cards (uPD7210 based isa cards)
2121# tnt4882:	National Instruments PCI-GPIB card.
2122
2123device	pcii
2124hint.pcii.0.at="isa"
2125hint.pcii.0.port="0x2e1"
2126hint.pcii.0.irq="5"
2127hint.pcii.0.drq="1"
2128
2129device	tnt4882
2130
2131#
2132# Miscellaneous hardware:
2133#
2134# scd: Sony CD-ROM using proprietary (non-ATAPI) interface
2135# mcd: Mitsumi CD-ROM using proprietary (non-ATAPI) interface
2136# bktr: Brooktree bt848/848a/849a/878/879 video capture and TV Tuner board
2137# joy: joystick (including IO DATA PCJOY PC Card joystick)
2138# cmx: OmniKey CardMan 4040 pccard smartcard reader
2139
2140# Mitsumi CD-ROM
2141device		mcd
2142hint.mcd.0.at="isa"
2143hint.mcd.0.port="0x300"
2144# for the Sony CDU31/33A CDROM
2145device		scd
2146hint.scd.0.at="isa"
2147hint.scd.0.port="0x230"
2148device		joy			# PnP aware, hints for non-PnP only
2149hint.joy.0.at="isa"
2150hint.joy.0.port="0x201"
2151device		cmx
2152
2153#
2154# The 'bktr' device is a PCI video capture device using the Brooktree
2155# bt848/bt848a/bt849a/bt878/bt879 chipset. When used with a TV Tuner it forms a
2156# TV card, e.g. Miro PC/TV, Hauppauge WinCast/TV WinTV, VideoLogic Captivator,
2157# Intel Smart Video III, AverMedia, IMS Turbo, FlyVideo.
2158#
2159# options 	OVERRIDE_CARD=xxx
2160# options 	OVERRIDE_TUNER=xxx
2161# options 	OVERRIDE_MSP=1
2162# options 	OVERRIDE_DBX=1
2163# These options can be used to override the auto detection
2164# The current values for xxx are found in src/sys/dev/bktr/bktr_card.h
2165# Using sysctl(8) run-time overrides on a per-card basis can be made
2166#
2167# options 	BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_PAL
2168# or
2169# options 	BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_NTSC
2170# Specifies the default video capture mode.
2171# This is required for Dual Crystal (28&35Mhz) boards where PAL is used
2172# to prevent hangs during initialisation, e.g. VideoLogic Captivator PCI.
2173#
2174# options 	BKTR_USE_PLL
2175# This is required for PAL or SECAM boards with a 28Mhz crystal and no 35Mhz
2176# crystal, e.g. some new Bt878 cards.
2177#
2178# options 	BKTR_GPIO_ACCESS
2179# This enable IOCTLs which give user level access to the GPIO port.
2180#
2181# options 	BKTR_NO_MSP_RESET
2182# Prevents the MSP34xx reset. Good if you initialise the MSP in another OS first
2183#
2184# options 	BKTR_430_FX_MODE
2185# Switch Bt878/879 cards into Intel 430FX chipset compatibility mode.
2186#
2187# options 	BKTR_SIS_VIA_MODE
2188# Switch Bt878/879 cards into SIS/VIA chipset compatibility mode which is
2189# needed for some old SiS and VIA chipset motherboards.
2190# This also allows Bt878/879 chips to work on old OPTi (<1997) chipset
2191# motherboards and motherboards with bad or incomplete PCI 2.1 support.
2192# As a rough guess, old = before 1998
2193#
2194# options 	BKTR_NEW_MSP34XX_DRIVER
2195# Use new, more complete initialization scheme for the msp34* soundchip.
2196# Should fix stereo autodetection if the old driver does only output
2197# mono sound.
2198
2199#
2200# options 	BKTR_USE_FREEBSD_SMBUS
2201# Compile with FreeBSD SMBus implementation
2202#
2203# Brooktree driver has been ported to the new I2C framework. Thus,
2204# you'll need to have the following 3 lines in the kernel config.
2205#     device smbus
2206#     device iicbus
2207#     device iicbb
2208#     device iicsmb
2209# The iic and smb devices are only needed if you want to control other
2210# I2C slaves connected to the external connector of some cards.
2211#
2212device		bktr
2213
2214#
2215# PC Card/PCMCIA and Cardbus
2216#
2217# cbb: pci/cardbus bridge implementing YENTA interface
2218# pccard: pccard slots
2219# cardbus: cardbus slots
2220device		cbb
2221device		pccard
2222device		cardbus
2223
2224#
2225# MMC/SD
2226#
2227# mmc 		MMC/SD bus
2228# mmcsd		MMC/SD memory card
2229# sdhci		Generic PCI SD Host Controller
2230#
2231device		mmc
2232device		mmcsd
2233device		sdhci
2234
2235#
2236# SMB bus
2237#
2238# System Management Bus support is provided by the 'smbus' device.
2239# Access to the SMBus device is via the 'smb' device (/dev/smb*),
2240# which is a child of the 'smbus' device.
2241#
2242# Supported devices:
2243# smb		standard I/O through /dev/smb*
2244#
2245# Supported SMB interfaces:
2246# iicsmb	I2C to SMB bridge with any iicbus interface
2247# bktr		brooktree848 I2C hardware interface
2248# intpm		Intel PIIX4 (82371AB, 82443MX) Power Management Unit
2249# alpm		Acer Aladdin-IV/V/Pro2 Power Management Unit
2250# ichsmb	Intel ICH SMBus controller chips (82801AA, 82801AB, 82801BA)
2251# viapm		VIA VT82C586B/596B/686A and VT8233 Power Management Unit
2252# amdpm		AMD 756 Power Management Unit
2253# amdsmb	AMD 8111 SMBus 2.0 Controller
2254# nfpm		NVIDIA nForce Power Management Unit
2255# nfsmb		NVIDIA nForce2/3/4 MCP SMBus 2.0 Controller
2256#
2257device		smbus		# Bus support, required for smb below.
2258
2259device		intpm
2260device		alpm
2261device		ichsmb
2262device		viapm
2263device		amdpm
2264device		amdsmb
2265device		nfpm
2266device		nfsmb
2267
2268device		smb
2269
2270#
2271# I2C Bus
2272#
2273# Philips i2c bus support is provided by the `iicbus' device.
2274#
2275# Supported devices:
2276# ic	i2c network interface
2277# iic	i2c standard io
2278# iicsmb i2c to smb bridge. Allow i2c i/o with smb commands.
2279#
2280# Supported interfaces:
2281# bktr	brooktree848 I2C software interface
2282#
2283# Other:
2284# iicbb	generic I2C bit-banging code (needed by lpbb, bktr)
2285#
2286device		iicbus		# Bus support, required for ic/iic/iicsmb below.
2287device		iicbb
2288
2289device		ic
2290device		iic
2291device		iicsmb		# smb over i2c bridge
2292
2293# I2C peripheral devices
2294#
2295# ds133x	Dallas Semiconductor DS1337, DS1338 and DS1339 RTC
2296# ds1672	Dallas Semiconductor DS1672 RTC
2297#
2298device		ds133x
2299device		ds1672
2300
2301# Parallel-Port Bus
2302#
2303# Parallel port bus support is provided by the `ppbus' device.
2304# Multiple devices may be attached to the parallel port, devices
2305# are automatically probed and attached when found.
2306#
2307# Supported devices:
2308# vpo	Iomega Zip Drive
2309#	Requires SCSI disk support ('scbus' and 'da'), best
2310#	performance is achieved with ports in EPP 1.9 mode.
2311# lpt	Parallel Printer
2312# plip	Parallel network interface
2313# ppi	General-purpose I/O ("Geek Port") + IEEE1284 I/O
2314# pps	Pulse per second Timing Interface
2315# lpbb	Philips official parallel port I2C bit-banging interface
2316# pcfclock Parallel port clock driver.
2317#
2318# Supported interfaces:
2319# ppc	ISA-bus parallel port interfaces.
2320#
2321
2322options 	PPC_PROBE_CHIPSET # Enable chipset specific detection
2323				  # (see flags in ppc(4))
2324options 	DEBUG_1284	# IEEE1284 signaling protocol debug
2325options 	PERIPH_1284	# Makes your computer act as an IEEE1284
2326				# compliant peripheral
2327options 	DONTPROBE_1284	# Avoid boot detection of PnP parallel devices
2328options 	VP0_DEBUG	# ZIP/ZIP+ debug
2329options 	LPT_DEBUG	# Printer driver debug
2330options 	PPC_DEBUG	# Parallel chipset level debug
2331options 	PLIP_DEBUG	# Parallel network IP interface debug
2332options 	PCFCLOCK_VERBOSE         # Verbose pcfclock driver
2333options 	PCFCLOCK_MAX_RETRIES=5   # Maximum read tries (default 10)
2334
2335device		ppc
2336hint.ppc.0.at="isa"
2337hint.ppc.0.irq="7"
2338device		ppbus
2339device		vpo
2340device		lpt
2341device		plip
2342device		ppi
2343device		pps
2344device		lpbb
2345device		pcfclock
2346
2347# Kernel BOOTP support
2348
2349options 	BOOTP		# Use BOOTP to obtain IP address/hostname
2350				# Requires NFSCLIENT and NFS_ROOT
2351options 	BOOTP_NFSROOT	# NFS mount root filesystem using BOOTP info
2352options 	BOOTP_NFSV3	# Use NFS v3 to NFS mount root
2353options 	BOOTP_COMPAT	# Workaround for broken bootp daemons.
2354options 	BOOTP_WIRED_TO=fxp0 # Use interface fxp0 for BOOTP
2355options 	BOOTP_BLOCKSIZE=8192 # Override NFS block size
2356
2357#
2358# Add software watchdog routines.
2359#
2360options 	SW_WATCHDOG
2361
2362#
2363# Disable swapping of stack pages.  This option removes all
2364# code which actually performs swapping, so it's not possible to turn
2365# it back on at run-time.
2366#
2367# This is sometimes usable for systems which don't have any swap space
2368# (see also sysctls "vm.defer_swapspace_pageouts" and
2369# "vm.disable_swapspace_pageouts")
2370#
2371#options 	NO_SWAPPING
2372
2373# Set the number of sf_bufs to allocate. sf_bufs are virtual buffers
2374# for sendfile(2) that are used to map file VM pages, and normally
2375# default to a quantity that is roughly 16*MAXUSERS+512. You would
2376# typically want about 4 of these for each simultaneous file send.
2377#
2378options 	NSFBUFS=1024
2379
2380#
2381# Enable extra debugging code for locks.  This stores the filename and
2382# line of whatever acquired the lock in the lock itself, and change a
2383# number of function calls to pass around the relevant data.  This is
2384# not at all useful unless you are debugging lock code.  Also note
2385# that it is likely to break e.g. fstat(1) unless you recompile your
2386# userland with -DDEBUG_LOCKS as well.
2387#
2388options 	DEBUG_LOCKS
2389
2390
2391#####################################################################
2392# USB support
2393# UHCI controller
2394device		uhci
2395# OHCI controller
2396device		ohci
2397# EHCI controller
2398device		ehci
2399# SL811 Controller
2400#device		slhci
2401# General USB code (mandatory for USB)
2402device		usb
2403#
2404# USB Double Bulk Pipe devices
2405device		udbp
2406# USB Fm Radio
2407device		ufm
2408# Human Interface Device (anything with buttons and dials)
2409device		uhid
2410# USB keyboard
2411device		ukbd
2412# USB printer
2413device		ulpt
2414# USB Iomega Zip 100 Drive (Requires scbus and da)
2415device		umass
2416# USB support for Belkin F5U109 and Magic Control Technology serial adapters
2417device		umct
2418# USB modem support
2419device		umodem
2420# USB mouse
2421device		ums
2422# Diamond Rio 500 MP3 player
2423device		urio
2424#
2425# USB serial support
2426device		ucom
2427# USB support for 3G modem cards by Option, Novatel, Huawei and Sierra
2428device		u3g
2429# USB support for Technologies ARK3116 based serial adapters
2430device		uark
2431# USB support for Belkin F5U103 and compatible serial adapters
2432device		ubsa
2433# USB support for serial adapters based on the FT8U100AX and FT8U232AM
2434device		uftdi
2435# USB support for some Windows CE based serial communication.
2436device		uipaq
2437# USB support for Prolific PL-2303 serial adapters
2438device		uplcom
2439# USB support for Silicon Laboratories CP2101/CP2102 based USB serial adapters
2440device		uslcom
2441# USB Visor and Palm devices
2442device		uvisor
2443# USB serial support for DDI pocket's PHS
2444device		uvscom
2445#
2446# ADMtek USB ethernet. Supports the LinkSys USB100TX,
2447# the Billionton USB100, the Melco LU-ATX, the D-Link DSB-650TX
2448# and the SMC 2202USB. Also works with the ADMtek AN986 Pegasus
2449# eval board.
2450device		aue
2451
2452# ASIX Electronics AX88172 USB 2.0 ethernet driver. Used in the
2453# LinkSys USB200M and various other adapters.
2454device		axe
2455
2456#
2457# Devices which communicate using Ethernet over USB, particularly
2458# Communication Device Class (CDC) Ethernet specification. Supports
2459# Sharp Zaurus PDAs, some DOCSIS cable modems and so on.
2460device		cdce
2461#
2462# CATC USB-EL1201A USB ethernet. Supports the CATC Netmate
2463# and Netmate II, and the Belkin F5U111.
2464device		cue
2465#
2466# Kawasaki LSI ethernet. Supports the LinkSys USB10T,
2467# Entrega USB-NET-E45, Peracom Ethernet Adapter, the
2468# 3Com 3c19250, the ADS Technologies USB-10BT, the ATen UC10T,
2469# the Netgear EA101, the D-Link DSB-650, the SMC 2102USB
2470# and 2104USB, and the Corega USB-T.
2471device		kue
2472#
2473# RealTek RTL8150 USB to fast ethernet. Supports the Melco LUA-KTX
2474# and the GREEN HOUSE GH-USB100B.
2475device		rue
2476#
2477# Davicom DM9601E USB to fast ethernet. Supports the Corega FEther USB-TXC.
2478device		udav
2479
2480#
2481# Ralink Technology RT2501USB/RT2601USB wireless driver
2482device		rum
2483#
2484# Atheros AR5523 wireless driver
2485device		uath
2486#
2487# Ralink Technology RT2500USB wireless driver
2488device		ural
2489#
2490# ZyDas ZD1211/ZD1211B wireless driver
2491device		zyd
2492
2493#
2494# debugging options for the USB subsystem
2495#
2496options 	USB_DEBUG
2497options 	U3G_DEBUG
2498
2499# options for ukbd:
2500options 	UKBD_DFLT_KEYMAP	# specify the built-in keymap
2501makeoptions	UKBD_DFLT_KEYMAP=it.iso
2502
2503# options for uplcom:
2504options 	UPLCOM_INTR_INTERVAL=100	# interrupt pipe interval
2505						# in milliseconds
2506
2507# options for uvscom:
2508options 	UVSCOM_DEFAULT_OPKTSIZE=8	# default output packet size
2509options 	UVSCOM_INTR_INTERVAL=100	# interrupt pipe interval
2510						# in milliseconds
2511
2512#####################################################################
2513# FireWire support
2514
2515device		firewire	# FireWire bus code
2516device		sbp		# SCSI over Firewire (Requires scbus and da)
2517device		sbp_targ	# SBP-2 Target mode  (Requires scbus and targ)
2518device		fwe		# Ethernet over FireWire (non-standard!)
2519device		fwip		# IP over FireWire (RFC2734 and RFC3146)
2520
2521#####################################################################
2522# dcons support (Dumb Console Device)
2523
2524device		dcons			# dumb console driver
2525device		dcons_crom		# FireWire attachment
2526options 	DCONS_BUF_SIZE=16384	# buffer size
2527options 	DCONS_POLL_HZ=100	# polling rate
2528options 	DCONS_FORCE_CONSOLE=0	# force to be the primary console
2529options 	DCONS_FORCE_GDB=1	# force to be the gdb device
2530
2531#####################################################################
2532# crypto subsystem
2533#
2534# This is a port of the OpenBSD crypto framework.  Include this when
2535# configuring IPSEC and when you have a h/w crypto device to accelerate
2536# user applications that link to OpenSSL.
2537#
2538# Drivers are ports from OpenBSD with some simple enhancements that have
2539# been fed back to OpenBSD.
2540
2541device		crypto		# core crypto support
2542device		cryptodev	# /dev/crypto for access to h/w
2543
2544device		rndtest		# FIPS 140-2 entropy tester
2545
2546device		hifn		# Hifn 7951, 7781, etc.
2547options 	HIFN_DEBUG	# enable debugging support: hw.hifn.debug
2548options 	HIFN_RNDTEST	# enable rndtest support
2549
2550device		ubsec		# Broadcom 5501, 5601, 58xx
2551options 	UBSEC_DEBUG	# enable debugging support: hw.ubsec.debug
2552options 	UBSEC_RNDTEST	# enable rndtest support
2553
2554#####################################################################
2555
2556
2557#
2558# Embedded system options:
2559#
2560# An embedded system might want to run something other than init.
2561options 	INIT_PATH=/sbin/init:/stand/sysinstall
2562
2563# Debug options
2564options 	BUS_DEBUG	# enable newbus debugging
2565options 	DEBUG_VFS_LOCKS	# enable VFS lock debugging
2566options 	SOCKBUF_DEBUG	# enable sockbuf last record/mb tail checking
2567
2568#
2569# Verbose SYSINIT
2570#
2571# Make the SYSINIT process performed by mi_startup() verbose.  This is very
2572# useful when porting to a new architecture.  If DDB is also enabled, this
2573# will print function names instead of addresses.
2574options 	VERBOSE_SYSINIT
2575
2576#####################################################################
2577# SYSV IPC KERNEL PARAMETERS
2578#
2579# Maximum number of entries in a semaphore map.
2580options 	SEMMAP=31
2581
2582# Maximum number of System V semaphores that can be used on the system at
2583# one time.
2584options 	SEMMNI=11
2585
2586# Total number of semaphores system wide
2587options 	SEMMNS=61
2588
2589# Total number of undo structures in system
2590options 	SEMMNU=31
2591
2592# Maximum number of System V semaphores that can be used by a single process
2593# at one time.
2594options 	SEMMSL=61
2595
2596# Maximum number of operations that can be outstanding on a single System V
2597# semaphore at one time.
2598options 	SEMOPM=101
2599
2600# Maximum number of undo operations that can be outstanding on a single
2601# System V semaphore at one time.
2602options 	SEMUME=11
2603
2604# Maximum number of shared memory pages system wide.
2605options 	SHMALL=1025
2606
2607# Maximum size, in bytes, of a single System V shared memory region.
2608options 	SHMMAX=(SHMMAXPGS*PAGE_SIZE+1)
2609options 	SHMMAXPGS=1025
2610
2611# Minimum size, in bytes, of a single System V shared memory region.
2612options 	SHMMIN=2
2613
2614# Maximum number of shared memory regions that can be used on the system
2615# at one time.
2616options 	SHMMNI=33
2617
2618# Maximum number of System V shared memory regions that can be attached to
2619# a single process at one time.
2620options 	SHMSEG=9
2621
2622# Set the amount of time (in seconds) the system will wait before
2623# rebooting automatically when a kernel panic occurs.  If set to (-1),
2624# the system will wait indefinitely until a key is pressed on the
2625# console.
2626options 	PANIC_REBOOT_WAIT_TIME=16
2627
2628# Attempt to bypass the buffer cache and put data directly into the
2629# userland buffer for read operation when O_DIRECT flag is set on the
2630# file.  Both offset and length of the read operation must be
2631# multiples of the physical media sector size.
2632#
2633options 	DIRECTIO
2634
2635# Specify a lower limit for the number of swap I/O buffers.  They are
2636# (among other things) used when bypassing the buffer cache due to
2637# DIRECTIO kernel option enabled and O_DIRECT flag set on file.
2638#
2639options 	NSWBUF_MIN=120
2640
2641#####################################################################
2642
2643# More undocumented options for linting.
2644# Note that documenting these are not considered an affront.
2645
2646options 	CAM_DEBUG_DELAY
2647
2648# VFS cluster debugging.
2649options 	CLUSTERDEBUG
2650
2651options 	DEBUG
2652
2653# Kernel filelock debugging.
2654options 	LOCKF_DEBUG
2655
2656# System V compatible message queues
2657# Please note that the values provided here are used to test kernel
2658# building.  The defaults in the sources provide almost the same numbers.
2659# MSGSSZ must be a power of 2 between 8 and 1024.
2660options 	MSGMNB=2049	# Max number of chars in queue
2661options 	MSGMNI=41	# Max number of message queue identifiers
2662options 	MSGSEG=2049	# Max number of message segments
2663options 	MSGSSZ=16	# Size of a message segment
2664options 	MSGTQL=41	# Max number of messages in system
2665
2666options 	NBUF=512	# Number of buffer headers
2667
2668options 	SCSI_NCR_DEBUG
2669options 	SCSI_NCR_MAX_SYNC=10000
2670options 	SCSI_NCR_MAX_WIDE=1
2671options 	SCSI_NCR_MYADDR=7
2672
2673options 	SC_DEBUG_LEVEL=5	# Syscons debug level
2674options 	SC_RENDER_DEBUG	# syscons rendering debugging
2675
2676options 	SHOW_BUSYBUFS	# List buffers that prevent root unmount
2677options 	VFS_BIO_DEBUG	# VFS buffer I/O debugging
2678
2679options 	KSTACK_MAX_PAGES=32 # Maximum pages to give the kernel stack
2680
2681# Adaptec Array Controller driver options
2682options 	AAC_DEBUG	# Debugging levels:
2683				# 0 - quiet, only emit warnings
2684				# 1 - noisy, emit major function
2685				#     points and things done
2686				# 2 - extremely noisy, emit trace
2687				#     items in loops, etc.
2688
2689# Yet more undocumented options for linting.
2690# BKTR_ALLOC_PAGES has no effect except to cause warnings, and
2691# BROOKTREE_ALLOC_PAGES hasn't actually been superseded by it, since the
2692# driver still mostly spells this option BROOKTREE_ALLOC_PAGES.
2693##options 	BKTR_ALLOC_PAGES=(217*4+1)
2694options 	BROOKTREE_ALLOC_PAGES=(217*4+1)
2695options 	MAXFILES=999
2696