xref: /freebsd/sys/conf/NOTES (revision 52ec752989b2e6d4e9a59a8ff25d8ff596d85e62)
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 manpages.
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 builtin 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 Linux API modules and plus those parts of the sound system I need.
77#makeoptions	MODULES_OVERRIDE="linux sound/snd sound/pcm sound/driver/maestro3"
78makeoptions	DESTDIR=/tmp
79
80
81#
82# Certain applications can grow to be larger than the 512M limit
83# that FreeBSD initially imposes.  Below are some options to
84# allow that limit to grow to 1GB, and can be increased further
85# with changing the parameters.  MAXDSIZ is the maximum that the
86# limit can be set to, and the DFLDSIZ is the default value for
87# the limit.  MAXSSIZ is the maximum that the stack limit can be
88# set to.  You might want to set the default lower than the max,
89# and explicitly set the maximum with a shell command for processes
90# that regularly exceed the limit like INND.
91#
92options 	MAXDSIZ=(1024UL*1024*1024)
93options 	MAXSSIZ=(128UL*1024*1024)
94options 	DFLDSIZ=(1024UL*1024*1024)
95
96#
97# BLKDEV_IOSIZE sets the default block size used in user block
98# device I/O.  Note that this value will be overriden by the label
99# when specifying a block device from a label with a non-0
100# partition blocksize.  The default is PAGE_SIZE.
101#
102options 	BLKDEV_IOSIZE=8192
103
104# Options for the VM subsystem
105# L2 cache size (in KB) can be specified in PQ_CACHESIZE
106options 	PQ_CACHESIZE=512	# color for 512k/16k cache
107# Deprecated options supported for backwards compatibility
108#options 	PQ_NOOPT		# No coloring
109#options 	PQ_LARGECACHE		# color for 512k/16k cache
110#options 	PQ_HUGECACHE		# color for 1024k/16k cache
111#options 	PQ_MEDIUMCACHE		# color for 256k/16k cache
112#options 	PQ_NORMALCACHE		# color for 64k/16k cache
113
114# This allows you to actually store this configuration file into
115# the kernel binary itself, where it may be later read by saying:
116#    strings -n 3 /boot/kernel/kernel | sed -n 's/^___//p' > MYKERNEL
117#
118options 	INCLUDE_CONFIG_FILE     # Include this file in kernel
119
120options 	GEOM_AES		# Don't use, use GEOM_BDE
121options 	GEOM_APPLE		# Apple partitioning
122options 	GEOM_BDE		# Disk encryption.
123options 	GEOM_BSD		# BSD disklabels
124options 	GEOM_FOX		# Redundant path mitigation
125options 	GEOM_GPT		# GPT partitioning
126options 	GEOM_MBR		# DOS/MBR partitioning
127options 	GEOM_PC98		# NEC PC9800 partitioning
128options 	GEOM_SUNLABEL		# Sun/Solaris partitioning
129options 	GEOM_VOL		# Volume names from UFS superblock
130
131#
132# The root device and filesystem type can be compiled in;
133# this provides a fallback option if the root device cannot
134# be correctly guessed by the bootstrap code, or an override if
135# the RB_DFLTROOT flag (-r) is specified when booting the kernel.
136#
137options 	ROOTDEVNAME=\"ufs:da0s2e\"
138
139
140#####################################################################
141# Scheduler options:
142#
143# Specifying one of SCHED_4BSD or SCHED_ULE is mandatory.  These options
144# select which scheduler is compiled in.
145#
146# SCHED_4BSD is the historical, proven, BSD scheduler.  It has a global run
147# queue and no cpu affinity which makes it suboptimal for SMP.  It has very
148# good interactivity and priority selection.
149#
150# SCHED_ULE is a new experimental scheduler that has been designed for SMP,
151# but will work just fine on UP too.  Users of this scheduler should expect
152# some hicups and be prepaired to provide feedback.
153#
154options 	SCHED_4BSD
155#options	SCHED_ULE
156
157#####################################################################
158# SMP OPTIONS:
159#
160# SMP enables building of a Symmetric MultiProcessor Kernel.
161
162# Mandatory:
163options 	SMP			# Symmetric MultiProcessor Kernel
164
165# ADAPTIVE_MUTEXES changes the behavior of blocking mutexes to spin
166# if the thread that currently owns the mutex is executing on another
167# CPU.
168options 	ADAPTIVE_MUTEXES
169
170# MUTEX_NOINLINE forces mutex operations to call functions to perform each
171# operation rather than inlining the simple cases.  This can be used to
172# shrink the size of the kernel text segment.  Note that this behavior is
173# already implied by the INVARIANT_SUPPORT, INVARIANTS, MUTEX_PROFILING,
174# and WITNESS options.
175options 	MUTEX_NOINLINE
176
177# SMP Debugging Options:
178#
179# MUTEX_DEBUG enables various extra assertions in the mutex code.
180# WITNESS enables the witness code which detects deadlocks and cycles
181#         during locking operations.
182# WITNESS_DDB causes the witness code to drop into the kernel debugger if
183#	  a lock heirarchy violation occurs or if locks are held when going to
184#	  sleep.
185# WITNESS_SKIPSPIN disables the witness checks on spin mutexes.
186options 	MUTEX_DEBUG
187options 	WITNESS
188options 	WITNESS_DDB
189options 	WITNESS_SKIPSPIN
190
191#
192# MUTEX_PROFILING - Profiling mutual exclusion locks (mutexes).  This
193# records four numbers for each acquisition point (identified by
194# source file name and line number): longest time held, total time held,
195# number of non-recursive acquisitions, and average time held. Measurements
196# are made and stored in nanoseconds (using nanotime(9)), but are presented
197# in microseconds, which should be sufficient for the locks which actually
198# want this (those that are held long and / or often).  The MUTEX_PROFILING
199# option has the following sysctl namespace for controlling and viewing its
200# operation:
201#
202#  debug.mutex.prof.enable - enable / disable profiling
203#  debug.mutex.prof.acquisitions - number of mutex acquisitions held
204#  debug.mutex.prof.records - number of acquisition points recorded
205#  debug.mutex.prof.maxrecords - max number of acquisition points
206#  debug.mutex.prof.rejected - number of rejections (due to full table)
207#  debug.mutex.prof.hashsize - hash size
208#  debug.mutex.prof.collisions - number of hash collisions
209#  debug.mutex.prof.stats - profiling statistics
210#
211options 	MUTEX_PROFILING
212
213
214#####################################################################
215# COMPATIBILITY OPTIONS
216
217#
218# Implement system calls compatible with 4.3BSD and older versions of
219# FreeBSD.  You probably do NOT want to remove this as much current code
220# still relies on the 4.3 emulation.  Note that some architectures that
221# are supported by FreeBSD do not include support for certain important
222# aspects of this compatibility option, namely those related to the
223# signal delivery mechanism.
224#
225options 	COMPAT_43
226
227#
228# Be compatible with SunOS.  The COMPAT_43 option above pulls in most
229# (all?) of the changes that this option turns on.
230#
231options 	COMPAT_SUNOS
232
233# Enable FreeBSD4 compatibility syscalls
234options 	COMPAT_FREEBSD4
235
236#
237# These three options provide support for System V Interface
238# Definition-style interprocess communication, in the form of shared
239# memory, semaphores, and message queues, respectively.
240#
241options 	SYSVSHM
242options 	SYSVSEM
243options 	SYSVMSG
244
245
246#####################################################################
247# DEBUGGING OPTIONS
248
249#
250# Enable the kernel debugger.
251#
252options 	DDB
253
254#
255# Use direct symbol lookup routines for ddb instead of the kernel linker
256# ones, so that symbols (mostly) work before the kernel linker has been
257# initialized.  This is not the default because it breaks ddb's lookup of
258# symbols in loaded modules.
259#
260#!options 	DDB_NOKLDSYM
261
262#
263# Print a stack trace of the current thread out on the console for a panic.
264#
265options 	DDB_TRACE
266
267#
268# Don't drop into DDB for a panic. Intended for unattended operation
269# where you may want to drop to DDB from the console, but still want
270# the machine to recover from a panic
271#
272options 	DDB_UNATTENDED
273
274#
275# If using GDB remote mode to debug the kernel, there's a non-standard
276# extension to the remote protocol that can be used to use the serial
277# port as both the debugging port and the system console.  It's non-
278# standard and you're on your own if you enable it.  See also the
279# "remotechat" variables in the FreeBSD specific version of gdb.
280#
281options 	GDB_REMOTE_CHAT
282
283#
284# KTRACE enables the system-call tracing facility ktrace(2).  To be more
285# SMP-friendly, KTRACE uses a worker thread to process most trace events
286# asynchronously to the thread generating the event.  This requires a
287# pre-allocated store of objects representing trace events.  The
288# KTRACE_REQUEST_POOL option specifies the initial size of this store.
289# The size of the pool can be adjusted both at boottime and runtime via
290# the kern.ktrace_request_pool tunable and sysctl.
291#
292options 	KTRACE			#kernel tracing
293options 	KTRACE_REQUEST_POOL=101
294
295#
296# KTR is a kernel tracing mechanism imported from BSD/OS.  Currently it
297# has no userland interface aside from a few sysctl's.  It is enabled with
298# the KTR option.  KTR_ENTRIES defines the number of entries in the circular
299# trace buffer.  KTR_COMPILE defines the mask of events to compile into the
300# kernel as defined by the KTR_* constants in <sys/ktr.h>.  KTR_MASK defines the
301# initial value of the ktr_mask variable which determines at runtime what
302# events to trace.  KTR_CPUMASK determines which CPU's log events, with
303# bit X corresponding to cpu X.  KTR_VERBOSE enables dumping of KTR events
304# to the console by default.  This functionality can be toggled via the
305# debug.ktr_verbose sysctl and defaults to off if KTR_VERBOSE is not defined.
306#
307options 	KTR
308options 	KTR_ENTRIES=1024
309options 	KTR_COMPILE=(KTR_INTR|KTR_PROC)
310options 	KTR_MASK=KTR_INTR
311options 	KTR_CPUMASK=0x3
312options 	KTR_VERBOSE
313
314#
315# The INVARIANTS option is used in a number of source files to enable
316# extra sanity checking of internal structures.  This support is not
317# enabled by default because of the extra time it would take to check
318# for these conditions, which can only occur as a result of
319# programming errors.
320#
321options 	INVARIANTS
322
323#
324# The INVARIANT_SUPPORT option makes us compile in support for
325# verifying some of the internal structures.  It is a prerequisite for
326# 'INVARIANTS', as enabling 'INVARIANTS' will make these functions be
327# called.  The intent is that you can set 'INVARIANTS' for single
328# source files (by changing the source file or specifying it on the
329# command line) if you have 'INVARIANT_SUPPORT' enabled.  Also, if you
330# wish to build a kernel module with 'INVARIANTS', then adding
331# 'INVARIANT_SUPPORT' to your kernel will provide all the necessary
332# infrastructure without the added overhead.
333#
334options 	INVARIANT_SUPPORT
335
336#
337# The DIAGNOSTIC option is used to enable extra debugging information
338# from some parts of the kernel.  As this makes everything more noisy,
339# it is disabled by default.
340#
341options 	DIAGNOSTIC
342
343#
344# REGRESSION causes optional kernel interfaces necessary only for regression
345# testing to be enabled.  These interfaces may consitute security risks
346# when enabled, as they permit processes to easily modify aspects of the
347# run-time environment to reproduce unlikely or unusual (possibly normally
348# impossible) scenarios.
349#
350options 	REGRESSION
351
352#
353# RESTARTABLE_PANICS allows one to continue from a panic as if it were
354# a call to the debugger via the Debugger() function instead.  It is only
355# useful if a kernel debugger is present.  To restart from a panic, reset
356# the panicstr variable to NULL and continue execution.  This option is
357# for development use only and should NOT be used in production systems
358# to "workaround" a panic.
359#
360#options 	RESTARTABLE_PANICS
361
362#
363# This option let some drivers co-exist that can't co-exist in a running
364# system.  This is used to be able to compile all kernel code in one go for
365# quality assurance purposes (like this file, which the option takes it name
366# from.)
367#
368options 	COMPILING_LINT
369
370
371#####################################################################
372# NETWORKING OPTIONS
373
374#
375# Protocol families:
376#  Only the INET (Internet) family is officially supported in FreeBSD.
377#
378options 	INET			#Internet communications protocols
379options 	INET6			#IPv6 communications protocols
380options 	IPSEC			#IP security
381options 	IPSEC_ESP		#IP security (crypto; define w/ IPSEC)
382options 	IPSEC_DEBUG		#debug for IP security
383#
384# Set IPSEC_FILTERGIF to force packets coming through a gif tunnel
385# to be processed by any configured packet filtering (ipfw, ipf).
386# The default is that packets coming from a tunnel are _not_ processed;
387# they are assumed trusted.
388#
389# Note that enabling this can be problematic as there are no mechanisms
390# in place for distinguishing packets coming out of a tunnel (e.g. no
391# encX devices as found on openbsd).
392#
393#options 	IPSEC_FILTERGIF		#filter ipsec packets from a tunnel
394
395#options 	FAST_IPSEC		#new IPsec (cannot define w/ IPSEC)
396
397options 	IPX			#IPX/SPX communications protocols
398options 	IPXIP			#IPX in IP encapsulation (not available)
399
400#options 	NCP			#NetWare Core protocol
401
402options 	NETATALK		#Appletalk communications protocols
403options 	NETATALKDEBUG		#Appletalk debugging
404
405#
406# SMB/CIFS requester
407# NETSMB enables support for SMB protocol, it requires LIBMCHAIN and LIBICONV
408# options.
409# NETSMBCRYPTO enables support for encrypted passwords.
410options 	NETSMB			#SMB/CIFS requester
411options 	NETSMBCRYPTO		#encrypted password support for SMB
412
413# mchain library. It can be either loaded as KLD or compiled into kernel
414options 	LIBMCHAIN
415
416# netgraph(4). Enable the base netgraph code with the NETGRAPH option.
417# Individual node types can be enabled with the corresponding option
418# listed below; however, this is not strictly necessary as netgraph
419# will automatically load the corresponding KLD module if the node type
420# is not already compiled into the kernel. Each type below has a
421# corresponding man page, e.g., ng_async(8).
422options 	NETGRAPH		#netgraph(4) system
423options 	NETGRAPH_ASYNC
424options 	NETGRAPH_BPF
425options 	NETGRAPH_BRIDGE
426options 	NETGRAPH_CISCO
427options 	NETGRAPH_ECHO
428options 	NETGRAPH_ETHER
429options 	NETGRAPH_FRAME_RELAY
430options 	NETGRAPH_GIF
431options 	NETGRAPH_GIF_DEMUX
432options 	NETGRAPH_HOLE
433options 	NETGRAPH_IFACE
434options 	NETGRAPH_IP_INPUT
435options 	NETGRAPH_KSOCKET
436options 	NETGRAPH_L2TP
437options 	NETGRAPH_LMI
438# MPPC compression requires proprietary files (not included)
439#options 	NETGRAPH_MPPC_COMPRESSION
440options 	NETGRAPH_MPPC_ENCRYPTION
441options 	NETGRAPH_ONE2MANY
442options 	NETGRAPH_PPP
443options 	NETGRAPH_PPPOE
444options 	NETGRAPH_PPTPGRE
445options 	NETGRAPH_RFC1490
446options 	NETGRAPH_SOCKET
447options 	NETGRAPH_SPLIT
448options 	NETGRAPH_TEE
449options 	NETGRAPH_TTY
450options 	NETGRAPH_UI
451options 	NETGRAPH_VJC
452options 	NETGRAPH_ATM_ATMPIF
453
454# NgATM - Netgraph ATM
455options 	NGATM_ATM
456options 	NGATM_ATMBASE
457options 	NGATM_SSCOP
458options 	NGATM_SSCFU
459options 	NGATM_UNI
460
461device		mn	# Munich32x/Falc54 Nx64kbit/sec cards.
462device		musycc	# LMC/SBE LMC1504 quad T1/E1
463
464#
465# Network interfaces:
466#  The `loop' device is MANDATORY when networking is enabled.
467#  The `ether' device provides generic code to handle
468#  Ethernets; it is MANDATORY when an Ethernet device driver is
469#  configured or token-ring is enabled.
470#  The `wlan' device provides generic code to support 802.11
471#  drivers, including host AP mode; it is MANDATORY for the wi
472#  driver and will eventually be required by all 802.11 drivers.
473#  The `fddi' device provides generic code to support FDDI.
474#  The `arcnet' device provides generic code to support Arcnet.
475#  The `sppp' device serves a similar role for certain types
476#  of synchronous PPP links (like `cx', `ar').
477#  The `sl' device implements the Serial Line IP (SLIP) service.
478#  The `ppp' device implements the Point-to-Point Protocol.
479#  The `bpf' device enables the Berkeley Packet Filter.  Be
480#  aware of the legal and administrative consequences of enabling this
481#  option.  The number of devices determines the maximum number of
482#  simultaneous BPF clients programs runnable.
483#  The `disc' device implements a minimal network interface,
484#  which throws away all packets sent and never receives any.  It is
485#  included for testing purposes.  This shows up as the `ds' interface.
486#  The `tap' device is a pty-like virtual Ethernet interface
487#  The `tun' device implements (user-)ppp and nos-tun
488#  The `gif' device implements IPv6 over IP4 tunneling,
489#  IPv4 over IPv6 tunneling, IPv4 over IPv4 tunneling and
490#  IPv6 over IPv6 tunneling.
491#  The `gre' device implements two types of IP4 over IP4 tunneling:
492#  GRE and MOBILE, as specified in the RFC1701 and RFC2004.
493#  The XBONEHACK option allows the same pair of addresses to be configured on
494#  multiple gif interfaces.
495#  The `faith' device captures packets sent to it and diverts them
496#  to the IPv4/IPv6 translation daemon.
497#  The `stf' device implements 6to4 encapsulation.
498#  The `ef' device provides support for multiple ethernet frame types
499#  specified via ETHER_* options. See ef(4) for details.
500#
501# The PPP_BSDCOMP option enables support for compress(1) style entire
502# packet compression, the PPP_DEFLATE is for zlib/gzip style compression.
503# PPP_FILTER enables code for filtering the ppp data stream and selecting
504# events for resetting the demand dial activity timer - requires bpf.
505# See pppd(8) for more details.
506#
507device		ether			#Generic Ethernet
508device		vlan			#VLAN support
509device		wlan			#802.11 support
510device		token			#Generic TokenRing
511device		fddi			#Generic FDDI
512device		arcnet			#Generic Arcnet
513device		sppp			#Generic Synchronous PPP
514device		loop			#Network loopback device
515device		bpf			#Berkeley packet filter
516device		disc			#Discard device (ds0, ds1, etc)
517device		tap			#Virtual Ethernet driver
518device		tun			#Tunnel driver (ppp(8), nos-tun(8))
519device		sl			#Serial Line IP
520device		gre			#IP over IP tunneling
521device		ppp			#Point-to-point protocol
522options 	PPP_BSDCOMP		#PPP BSD-compress support
523options 	PPP_DEFLATE		#PPP zlib/deflate/gzip support
524options 	PPP_FILTER		#enable bpf filtering (needs bpf)
525
526device		ef			# Multiple ethernet frames support
527options 	ETHER_II		# enable Ethernet_II frame
528options 	ETHER_8023		# enable Ethernet_802.3 (Novell) frame
529options 	ETHER_8022		# enable Ethernet_802.2 frame
530options 	ETHER_SNAP		# enable Ethernet_802.2/SNAP frame
531
532# for IPv6
533device		gif			#IPv6 and IPv4 tunneling
534options 	XBONEHACK
535device		faith			#for IPv6 and IPv4 translation
536device		stf			#6to4 IPv6 over IPv4 encapsulation
537
538#
539# Internet family options:
540#
541# MROUTING enables the kernel multicast packet forwarder, which works
542# with mrouted(8).
543#
544# PIM enables Protocol Independent Multicast in the kernel.
545# Requires MROUTING enabled.
546#
547# IPFIREWALL enables support for IP firewall construction, in
548# conjunction with the `ipfw' program.  IPFIREWALL_VERBOSE sends
549# logged packets to the system logger.  IPFIREWALL_VERBOSE_LIMIT
550# limits the number of times a matching entry can be logged.
551#
552# WARNING:  IPFIREWALL defaults to a policy of "deny ip from any to any"
553# and if you do not add other rules during startup to allow access,
554# YOU WILL LOCK YOURSELF OUT.  It is suggested that you set firewall_type=open
555# in /etc/rc.conf when first enabling this feature, then refining the
556# firewall rules in /etc/rc.firewall after you've tested that the new kernel
557# feature works properly.
558#
559# IPFIREWALL_DEFAULT_TO_ACCEPT causes the default rule (at boot) to
560# allow everything.  Use with care, if a cracker can crash your
561# firewall machine, they can get to your protected machines.  However,
562# if you are using it as an as-needed filter for specific problems as
563# they arise, then this may be for you.  Changing the default to 'allow'
564# means that you won't get stuck if the kernel and /sbin/ipfw binary get
565# out of sync.
566#
567# IPDIVERT enables the divert IP sockets, used by ``ipfw divert''
568#
569# IPSTEALTH enables code to support stealth forwarding (i.e., forwarding
570# packets without touching the ttl).  This can be useful to hide firewalls
571# from traceroute and similar tools.
572#
573# PFIL_HOOKS enables an abtraction layer which is meant to be used in
574# network code where filtering is required.  See the pfil(9) man page.
575# This option is required by the IPFILTER option.
576#
577# TCPDEBUG enables code which keeps traces of the TCP state machine
578# for sockets with the SO_DEBUG option set, which can then be examined
579# using the trpt(8) utility.
580#
581options 	MROUTING		# Multicast routing
582options 	PIM			# Protocol Independent Multicast
583options 	IPFIREWALL		#firewall
584options 	IPFIREWALL_VERBOSE	#enable logging to syslogd(8)
585options 	IPFIREWALL_VERBOSE_LIMIT=100	#limit verbosity
586options 	IPFIREWALL_DEFAULT_TO_ACCEPT	#allow everything by default
587options 	IPV6FIREWALL		#firewall for IPv6
588options 	IPV6FIREWALL_VERBOSE
589options 	IPV6FIREWALL_VERBOSE_LIMIT=100
590options 	IPV6FIREWALL_DEFAULT_TO_ACCEPT
591options 	IPDIVERT		#divert sockets
592options 	IPFILTER		#ipfilter support
593options 	IPFILTER_LOG		#ipfilter logging
594options 	IPFILTER_DEFAULT_BLOCK	#block all packets by default
595options 	IPSTEALTH		#support for stealth forwarding
596options 	PFIL_HOOKS		#required by IPFILTER
597options 	TCPDEBUG
598
599# The MBUF_STRESS_TEST option enables options which create
600# various random failures / extreme cases related to mbuf
601# functions.  See the mbuf(9) manpage for a list of available
602# test cases.
603options 	MBUF_STRESS_TEST
604
605# RANDOM_IP_ID causes the ID field in IP packets to be randomized
606# instead of incremented by 1 with each packet generated.  This
607# option closes a minor information leak which allows remote
608# observers to determine the rate of packet generation on the
609# machine by watching the counter.
610options 	RANDOM_IP_ID
611
612# Statically Link in accept filters
613options 	ACCEPT_FILTER_DATA
614options 	ACCEPT_FILTER_HTTP
615
616# TCP_DROP_SYNFIN adds support for ignoring TCP packets with SYN+FIN. This
617# prevents nmap et al. from identifying the TCP/IP stack, but breaks support
618# for RFC1644 extensions and is not recommended for web servers.
619#
620options 	TCP_DROP_SYNFIN		#drop TCP packets with SYN+FIN
621
622# DUMMYNET enables the "dummynet" bandwidth limiter. You need
623# IPFIREWALL as well. See the dummynet(4) and ipfw(8) manpages for more info.
624# When you run DUMMYNET it is advisable to also have "options HZ=1000"
625# to achieve a smoother scheduling of the traffic.
626#
627# BRIDGE enables bridging between ethernet cards -- see bridge(4).
628# You can use IPFIREWALL and DUMMYNET together with bridging.
629#
630options 	DUMMYNET
631options 	BRIDGE
632
633# Zero copy sockets support.  This enables "zero copy" for sending and
634# receving data via a socket.  The send side works for any type of NIC,
635# the receive side only works for NICs that support MTUs greater than the
636# page size of your architecture and that support header splitting.  See
637# zero_copy(9) for more details.
638options 	ZERO_COPY_SOCKETS
639
640#
641# ATM (HARP version) options
642#
643# ATM_CORE includes the base ATM functionality code.  This must be included
644#	for ATM support.
645#
646# ATM_IP includes support for running IP over ATM.
647#
648# At least one (and usually only one) of the following signalling managers
649# must be included (note that all signalling managers include PVC support):
650# ATM_SIGPVC includes support for the PVC-only signalling manager `sigpvc'.
651# ATM_SPANS includes support for the `spans' signalling manager, which runs
652#	the FORE Systems's proprietary SPANS signalling protocol.
653# ATM_UNI includes support for the `uni30' and `uni31' signalling managers,
654#	which run the ATM Forum UNI 3.x signalling protocols.
655#
656# The `hfa' driver provides support for the FORE Systems, Inc.
657# PCA-200E ATM PCI Adapter.
658#
659# The `harp' pseudo-driver makes all NATM interface drivers available to HARP.
660#
661options 	ATM_CORE		#core ATM protocol family
662options 	ATM_IP			#IP over ATM support
663options 	ATM_SIGPVC		#SIGPVC signalling manager
664options 	ATM_SPANS		#SPANS signalling manager
665options 	ATM_UNI			#UNI signalling manager
666
667device		hfa			#FORE PCA-200E ATM PCI
668device		harp			#Pseudo-interface for NATM
669
670
671#####################################################################
672# FILESYSTEM OPTIONS
673
674#
675# Only the root, /usr, and /tmp filesystems need be statically
676# compiled; everything else will be automatically loaded at mount
677# time.  (Exception: the UFS family--- FFS --- cannot
678# currently be demand-loaded.)  Some people still prefer to statically
679# compile other filesystems as well.
680#
681# NB: The NULL, PORTAL, UMAP and UNION filesystems are known to be
682# buggy, and WILL panic your system if you attempt to do anything with
683# them.  They are included here as an incentive for some enterprising
684# soul to sit down and fix them.
685#
686
687# One of these is mandatory:
688options 	FFS			#Fast filesystem
689options 	NFSCLIENT		#Network File System
690
691# The rest are optional:
692options 	CD9660			#ISO 9660 filesystem
693options 	FDESCFS			#File descriptor filesystem
694options 	HPFS			#OS/2 File system
695options 	MSDOSFS			#MS DOS File System (FAT, FAT32)
696options 	NFSSERVER		#Network File System
697options 	NTFS			#NT File System
698options 	NULLFS			#NULL filesystem
699#options 	NWFS			#NetWare filesystem
700options 	PORTALFS		#Portal filesystem
701options 	PROCFS			#Process filesystem (requires PSEUDOFS)
702options 	PSEUDOFS		#Pseudo-filesystem framework
703options 	SMBFS			#SMB/CIFS filesystem
704options 	UDF			#Universal Disk Format
705options 	UMAPFS			#UID map filesystem
706options 	UNIONFS			#Union filesystem
707# The xFS_ROOT options REQUIRE the associated ``options xFS''
708options 	NFS_ROOT		#NFS usable as root device
709
710# Soft updates is a technique for improving filesystem speed and
711# making abrupt shutdown less risky.
712#
713options 	SOFTUPDATES
714
715# Extended attributes allow additional data to be associated with files,
716# and is used for ACLs, Capabilities, and MAC labels.
717# See src/sys/ufs/ufs/README.extattr for more information.
718options 	UFS_EXTATTR
719options 	UFS_EXTATTR_AUTOSTART
720
721# Access Control List support for UFS filesystems.  The current ACL
722# implementation requires extended attribute support, UFS_EXTATTR,
723# for the underlying filesystem.
724# See src/sys/ufs/ufs/README.acls for more information.
725options 	UFS_ACL
726
727# Directory hashing improves the speed of operations on very large
728# directories at the expense of some memory.
729options 	UFS_DIRHASH
730
731# Make space in the kernel for a root filesystem on a md device.
732# Define to the number of kilobytes to reserve for the filesystem.
733options 	MD_ROOT_SIZE=10
734
735# Make the md device a potential root device, either with preloaded
736# images of type mfs_root or md_root.
737options 	MD_ROOT
738
739# Disk quotas are supported when this option is enabled.
740options 	QUOTA			#enable disk quotas
741
742# If you are running a machine just as a fileserver for PC and MAC
743# users, using SAMBA or Netatalk, you may consider setting this option
744# and keeping all those users' directories on a filesystem that is
745# mounted with the suiddir option. This gives new files the same
746# ownership as the directory (similar to group). It's a security hole
747# if you let these users run programs, so confine it to file-servers
748# (but it'll save you lots of headaches in those cases). Root owned
749# directories are exempt and X bits are cleared. The suid bit must be
750# set on the directory as well; see chmod(1) PC owners can't see/set
751# ownerships so they keep getting their toes trodden on. This saves
752# you all the support calls as the filesystem it's used on will act as
753# they expect: "It's my dir so it must be my file".
754#
755options 	SUIDDIR
756
757# NFS options:
758options 	NFS_MINATTRTIMO=3	# VREG attrib cache timeout in sec
759options 	NFS_MAXATTRTIMO=60
760options 	NFS_MINDIRATTRTIMO=30	# VDIR attrib cache timeout in sec
761options 	NFS_MAXDIRATTRTIMO=60
762options 	NFS_GATHERDELAY=10	# Default write gather delay (msec)
763options 	NFS_WDELAYHASHSIZ=16	# and with this
764options 	NFS_DEBUG		# Enable NFS Debugging
765
766# Coda stuff:
767options 	CODA			#CODA filesystem.
768device		vcoda	4		#coda minicache <-> venus comm.
769# Use the old Coda 5.x venus<->kernel interface instead of the new
770# realms-aware 6.x protocol.
771#options 	CODA_COMPAT_5
772
773#
774# Add support for the EXT2FS filesystem of Linux fame.  Be a bit
775# careful with this - the ext2fs code has a tendency to lag behind
776# changes and not be exercised very much, so mounting read/write could
777# be dangerous (and even mounting read only could result in panics.)
778#
779options 	EXT2FS
780
781# Use real implementations of the aio_* system calls.  There are numerous
782# stability and security issues in the current aio code that make it
783# unsuitable for inclusion on machines with untrusted local users.
784options 	VFS_AIO
785
786# Cryptographically secure random number generator; /dev/[u]random
787device		random
788
789# Optional character code conversion support with LIBICONV.
790# Each option requires their base file system and LIBICONV.
791options 	CD9660_ICONV
792options 	MSDOSFS_ICONV
793options 	NTFS_ICONV
794options 	UDF_ICONV
795
796
797#####################################################################
798# POSIX P1003.1B
799
800# Real time extensions added in the 1993 Posix
801# _KPOSIX_PRIORITY_SCHEDULING: Build in _POSIX_PRIORITY_SCHEDULING
802
803options 	_KPOSIX_PRIORITY_SCHEDULING
804# p1003_1b_semaphores are very experimental,
805# user should be ready to assist in debugging if problems arise.
806options 	P1003_1B_SEMAPHORES
807
808
809#####################################################################
810# SECURITY POLICY PARAMETERS
811
812# Support for Mandatory Access Control (MAC):
813options 	MAC
814options 	MAC_BIBA
815options 	MAC_BSDEXTENDED
816options 	MAC_DEBUG
817options 	MAC_IFOFF
818options 	MAC_LOMAC
819options 	MAC_MLS
820options 	MAC_NONE
821options 	MAC_PARTITION
822options 	MAC_PORTACL
823options 	MAC_SEEOTHERUIDS
824options 	MAC_STUB
825options 	MAC_TEST
826
827
828#####################################################################
829# CLOCK OPTIONS
830
831# The granularity of operation is controlled by the kernel option HZ whose
832# default value (100) means a granularity of 10ms (1s/HZ).
833# Some subsystems, such as DUMMYNET, might benefit from a smaller
834# granularity such as 1ms or less, for a smoother scheduling of packets.
835# Consider, however, that reducing the granularity too much might
836# cause excessive overhead in clock interrupt processing,
837# potentially causing ticks to be missed and thus actually reducing
838# the accuracy of operation.
839
840options 	HZ=100
841
842# Enable support for the kernel PLL to use an external PPS signal,
843# under supervision of [x]ntpd(8)
844# More info in ntpd documentation: http://www.eecis.udel.edu/~ntp
845
846options 	PPS_SYNC
847
848
849#####################################################################
850# SCSI DEVICES
851
852# SCSI DEVICE CONFIGURATION
853
854# The SCSI subsystem consists of the `base' SCSI code, a number of
855# high-level SCSI device `type' drivers, and the low-level host-adapter
856# device drivers.  The host adapters are listed in the ISA and PCI
857# device configuration sections below.
858#
859# It is possible to wire down your SCSI devices so that a given bus,
860# target, and LUN always come on line as the same device unit.  In
861# earlier versions the unit numbers were assigned in the order that
862# the devices were probed on the SCSI bus.  This means that if you
863# removed a disk drive, you may have had to rewrite your /etc/fstab
864# file, and also that you had to be careful when adding a new disk
865# as it may have been probed earlier and moved your device configuration
866# around.  (See also option GEOM_VOL for a different solution to this
867# problem.)
868
869# This old behavior is maintained as the default behavior.  The unit
870# assignment begins with the first non-wired down unit for a device
871# type.  For example, if you wire a disk as "da3" then the first
872# non-wired disk will be assigned da4.
873
874# The syntax for wiring down devices is:
875
876hint.scbus.0.at="ahc0"
877hint.scbus.1.at="ahc1"
878hint.scbus.1.bus="0"
879hint.scbus.3.at="ahc2"
880hint.scbus.3.bus="0"
881hint.scbus.2.at="ahc2"
882hint.scbus.2.bus="1"
883hint.da.0.at="scbus0"
884hint.da.0.target="0"
885hint.da.0.unit="0"
886hint.da.1.at="scbus3"
887hint.da.1.target="1"
888hint.da.2.at="scbus2"
889hint.da.2.target="3"
890hint.sa.1.at="scbus1"
891hint.sa.1.target="6"
892
893# "units" (SCSI logical unit number) that are not specified are
894# treated as if specified as LUN 0.
895
896# All SCSI devices allocate as many units as are required.
897
898# The ch driver drives SCSI Media Changer ("jukebox") devices.
899#
900# The da driver drives SCSI Direct Access ("disk") and Optical Media
901# ("WORM") devices.
902#
903# The sa driver drives SCSI Sequential Access ("tape") devices.
904#
905# The cd driver drives SCSI Read Only Direct Access ("cd") devices.
906#
907# The ses driver drives SCSI Envinronment Services ("ses") and
908# SAF-TE ("SCSI Accessable Fault-Tolerant Enclosure") devices.
909#
910# The pt driver drives SCSI Processor devices.
911#
912#
913# Target Mode support is provided here but also requires that a SIM
914# (SCSI Host Adapter Driver) provide support as well.
915#
916# The targ driver provides target mode support as a Processor type device.
917# It exists to give the minimal context necessary to respond to Inquiry
918# commands. There is a sample user application that shows how the rest
919# of the command support might be done in /usr/share/examples/scsi_target.
920#
921# The targbh driver provides target mode support and exists to respond
922# to incoming commands that do not otherwise have a logical unit assigned
923# to them.
924#
925# The "unknown" device (uk? in pre-2.0.5) is now part of the base SCSI
926# configuration as the "pass" driver.
927
928device		scbus		#base SCSI code
929device		ch		#SCSI media changers
930device		da		#SCSI direct access devices (aka disks)
931device		sa		#SCSI tapes
932device		cd		#SCSI CD-ROMs
933device		ses		#SCSI Environmental Services (and SAF-TE)
934device		pt		#SCSI processor
935device		targ		#SCSI Target Mode Code
936device		targbh		#SCSI Target Mode Blackhole Device
937device		pass		#CAM passthrough driver
938
939# CAM OPTIONS:
940# debugging options:
941# -- NOTE --  If you specify one of the bus/target/lun options, you must
942#             specify them all!
943# CAMDEBUG: When defined enables debugging macros
944# CAM_DEBUG_BUS:  Debug the given bus.  Use -1 to debug all busses.
945# CAM_DEBUG_TARGET:  Debug the given target.  Use -1 to debug all targets.
946# CAM_DEBUG_LUN:  Debug the given lun.  Use -1 to debug all luns.
947# CAM_DEBUG_FLAGS:  OR together CAM_DEBUG_INFO, CAM_DEBUG_TRACE,
948#                   CAM_DEBUG_SUBTRACE, and CAM_DEBUG_CDB
949#
950# CAM_MAX_HIGHPOWER: Maximum number of concurrent high power (start unit) cmds
951# CAM_NEW_TRAN_CODE: this is the new transport layer code that will be switched
952#			to soon
953# SCSI_NO_SENSE_STRINGS: When defined disables sense descriptions
954# SCSI_NO_OP_STRINGS: When defined disables opcode descriptions
955# SCSI_DELAY: The number of MILLISECONDS to freeze the SIM (scsi adapter)
956#             queue after a bus reset, and the number of milliseconds to
957#             freeze the device queue after a bus device reset.  This
958#             can be changed at boot and runtime with the
959#             kern.cam.scsi_delay tunable/sysctl.
960options 	CAMDEBUG
961options 	CAM_DEBUG_BUS=-1
962options 	CAM_DEBUG_TARGET=-1
963options 	CAM_DEBUG_LUN=-1
964options 	CAM_DEBUG_FLAGS=(CAM_DEBUG_INFO|CAM_DEBUG_TRACE|CAM_DEBUG_CDB)
965options 	CAM_MAX_HIGHPOWER=4
966options 	SCSI_NO_SENSE_STRINGS
967options 	SCSI_NO_OP_STRINGS
968options 	SCSI_DELAY=8000	# Be pessimistic about Joe SCSI device
969
970# Options for the CAM SCSI disk driver:
971# DA_OLD_QUIRKS: Restore old USB and firewire quirks that have been
972#		 deprecated.  Please also email scsi@freebsd.org if you
973#		 have a device that needs this option.
974options 	DA_OLD_QUIRKS
975
976# Options for the CAM CDROM driver:
977# CHANGER_MIN_BUSY_SECONDS: Guaranteed minimum time quantum for a changer LUN
978# CHANGER_MAX_BUSY_SECONDS: Maximum time quantum per changer LUN, only
979#                           enforced if there is I/O waiting for another LUN
980# The compiled in defaults for these variables are 2 and 10 seconds,
981# respectively.
982#
983# These can also be changed on the fly with the following sysctl variables:
984# kern.cam.cd.changer.min_busy_seconds
985# kern.cam.cd.changer.max_busy_seconds
986#
987options 	CHANGER_MIN_BUSY_SECONDS=2
988options 	CHANGER_MAX_BUSY_SECONDS=10
989
990# Options for the CAM sequential access driver:
991# SA_IO_TIMEOUT: Timeout for read/write/wfm  operations, in minutes
992# SA_SPACE_TIMEOUT: Timeout for space operations, in minutes
993# SA_REWIND_TIMEOUT: Timeout for rewind operations, in minutes
994# SA_ERASE_TIMEOUT: Timeout for erase operations, in minutes
995# SA_1FM_AT_EOD: Default to model which only has a default one filemark at EOT.
996options 	SA_IO_TIMEOUT=4
997options 	SA_SPACE_TIMEOUT=60
998options 	SA_REWIND_TIMEOUT=(2*60)
999options 	SA_ERASE_TIMEOUT=(4*60)
1000options 	SA_1FM_AT_EOD
1001
1002# Optional timeout for the CAM processor target (pt) device
1003# This is specified in seconds.  The default is 60 seconds.
1004options 	SCSI_PT_DEFAULT_TIMEOUT=60
1005
1006# Optional enable of doing SES passthrough on other devices (e.g., disks)
1007#
1008# Normally disabled because a lot of newer SCSI disks report themselves
1009# as having SES capabilities, but this can then clot up attempts to build
1010# build a topology with the SES device that's on the box these drives
1011# are in....
1012options 	SES_ENABLE_PASSTHROUGH
1013
1014
1015#####################################################################
1016# MISCELLANEOUS DEVICES AND OPTIONS
1017
1018# The `pty' device usually turns out to be ``effectively mandatory'',
1019# as it is required for `telnetd', `rlogind', `screen', `emacs', and
1020# `xterm', among others.
1021
1022device		pty		#Pseudo ttys
1023device		nmdm		#back-to-back tty devices
1024device		md		#Memory/malloc disk
1025device		snp		#Snoop device - to look at pty/vty/etc..
1026device		ccd		#Concatenated disk driver
1027
1028# Configuring Vinum into the kernel is not necessary, since the kld
1029# module gets started automatically when vinum(8) starts.  This
1030# device is also untested.  Use at your own risk.
1031#
1032# The option VINUMDEBUG must match the value set in CFLAGS
1033# in src/sbin/vinum/Makefile.  Failure to do so will result in
1034# the following message from vinum(8):
1035#
1036# Can't get vinum config: Invalid argument
1037#
1038# see vinum(4) for more reasons not to use these options.
1039device		vinum		#Vinum concat/mirror/raid driver
1040options 	VINUMDEBUG	#enable Vinum debugging hooks
1041
1042# RAIDframe device.  RAID_AUTOCONFIG allows RAIDframe to search all of the
1043# disk devices in the system looking for components that it recognizes (already
1044# configured once before) and auto-configured them into arrays.
1045device		raidframe
1046options 	RAID_AUTOCONFIG
1047
1048# Kernel side iconv library
1049options 	LIBICONV
1050
1051# Size of the kernel message buffer.  Should be N * pagesize.
1052options 	MSGBUF_SIZE=40960
1053
1054# Maximum size of a tty or pty input buffer.
1055options 	TTYHOG=8193
1056
1057
1058#####################################################################
1059# HARDWARE DEVICE CONFIGURATION
1060
1061# For ISA the required hints are listed.
1062# EISA, MCA, PCI and pccard are self identifying buses, so no hints
1063# are needed.
1064
1065#
1066# Mandatory devices:
1067#
1068
1069# The keyboard controller; it controls the keyboard and the PS/2 mouse.
1070device		atkbdc
1071hint.atkbdc.0.at="isa"
1072hint.atkbdc.0.port="0x060"
1073
1074# The AT keyboard
1075device		atkbd
1076hint.atkbd.0.at="atkbdc"
1077hint.atkbd.0.irq="1"
1078
1079# Options for atkbd:
1080options 	ATKBD_DFLT_KEYMAP	# specify the built-in keymap
1081makeoptions	ATKBD_DFLT_KEYMAP=jp.106
1082
1083# These options are valid for other keyboard drivers as well.
1084options 	KBD_DISABLE_KEYMAP_LOAD	# refuse to load a keymap
1085options 	KBD_INSTALL_CDEV	# install a CDEV entry in /dev
1086
1087# `flags' for atkbd:
1088#       0x01    Force detection of keyboard, else we always assume a keyboard
1089#       0x02    Don't reset keyboard, useful for some newer ThinkPads
1090#	0x03	Force detection and avoid reset, might help with certain
1091#		dockingstations
1092#       0x04    Old-style (XT) keyboard support, useful for older ThinkPads
1093
1094# PS/2 mouse
1095device		psm
1096hint.psm.0.at="atkbdc"
1097hint.psm.0.irq="12"
1098
1099# Options for psm:
1100options 	PSM_HOOKRESUME		#hook the system resume event, useful
1101					#for some laptops
1102options 	PSM_RESETAFTERSUSPEND	#reset the device at the resume event
1103
1104# Video card driver for VGA adapters.
1105device		vga
1106hint.vga.0.at="isa"
1107
1108# Options for vga:
1109# Try the following option if the mouse pointer is not drawn correctly
1110# or font does not seem to be loaded properly.  May cause flicker on
1111# some systems.
1112options 	VGA_ALT_SEQACCESS
1113
1114# If you can dispense with some vga driver features, you may want to
1115# use the following options to save some memory.
1116#options 	VGA_NO_FONT_LOADING	# don't save/load font
1117#options 	VGA_NO_MODE_CHANGE	# don't change video modes
1118
1119# Older video cards may require this option for proper operation.
1120options 	VGA_SLOW_IOACCESS	# do byte-wide i/o's to TS and GDC regs
1121
1122# The following option probably won't work with the LCD displays.
1123options 	VGA_WIDTH90		# support 90 column modes
1124
1125options 	FB_DEBUG		# Frame buffer debugging
1126
1127device		splash			# Splash screen and screen saver support
1128
1129# Various screen savers.
1130device		blank_saver
1131device		daemon_saver
1132device		fade_saver
1133device		fire_saver
1134device		green_saver
1135device		logo_saver
1136device		rain_saver
1137device		star_saver
1138device		warp_saver
1139
1140# The syscons console driver (sco color console compatible).
1141device		sc
1142hint.sc.0.at="isa"
1143options 	MAXCONS=16		# number of virtual consoles
1144options 	SC_ALT_MOUSE_IMAGE	# simplified mouse cursor in text mode
1145options 	SC_DFLT_FONT		# compile font in
1146makeoptions	SC_DFLT_FONT=cp850
1147options 	SC_DISABLE_DDBKEY	# disable `debug' key
1148options 	SC_DISABLE_REBOOT	# disable reboot key sequence
1149options 	SC_HISTORY_SIZE=200	# number of history buffer lines
1150options 	SC_MOUSE_CHAR=0x3	# char code for text mode mouse cursor
1151options 	SC_PIXEL_MODE		# add support for the raster text mode
1152
1153# The following options will let you change the default colors of syscons.
1154options 	SC_NORM_ATTR=(FG_GREEN|BG_BLACK)
1155options 	SC_NORM_REV_ATTR=(FG_YELLOW|BG_GREEN)
1156options 	SC_KERNEL_CONS_ATTR=(FG_RED|BG_BLACK)
1157options 	SC_KERNEL_CONS_REV_ATTR=(FG_BLACK|BG_RED)
1158
1159# The following options will let you change the default behaviour of
1160# cut-n-paste feature
1161options 	SC_CUT_SPACES2TABS	# convert leading spaces into tabs
1162options 	SC_CUT_SEPCHARS=\"x09\"	# set of characters that delimit words
1163					# (default is single space - \"x20\")
1164
1165# If you have a two button mouse, you may want to add the following option
1166# to use the right button of the mouse to paste text.
1167options 	SC_TWOBUTTON_MOUSE
1168
1169# You can selectively disable features in syscons.
1170options 	SC_NO_CUTPASTE
1171options 	SC_NO_FONT_LOADING
1172options 	SC_NO_HISTORY
1173options 	SC_NO_SYSMOUSE
1174options 	SC_NO_SUSPEND_VTYSWITCH
1175
1176# `flags' for sc
1177#	0x80	Put the video card in the VESA 800x600 dots, 16 color mode
1178#	0x100	Probe for a keyboard device periodically if one is not present
1179
1180#
1181# Optional devices:
1182#
1183
1184#
1185# SCSI host adapters:
1186#
1187# adv: All Narrow SCSI bus AdvanSys controllers.
1188# adw: Second Generation AdvanSys controllers including the ADV940UW.
1189# aha: Adaptec 154x/1535/1640
1190# ahb: Adaptec 174x EISA controllers
1191# ahc: Adaptec 274x/284x/2910/293x/294x/394x/3950x/3960x/398X/4944/
1192#      19160x/29160x, aic7770/aic78xx
1193# ahd: Adaptec 29320/39320 Controllers.
1194# aic: Adaptec 6260/6360, APA-1460 (PC Card), NEC PC9801-100 (C-BUS)
1195# amd: Support for the AMD 53C974 SCSI host adapter chip as found on devices
1196#      such as the Tekram DC-390(T).
1197# bt:  Most Buslogic controllers: including BT-445, BT-54x, BT-64x, BT-74x,
1198#      BT-75x, BT-946, BT-948, BT-956, BT-958, SDC3211B, SDC3211F, SDC3222F
1199# isp: Qlogic ISP 1020, 1040 and 1040B PCI SCSI host adapters,
1200#      ISP 1240 Dual Ultra SCSI, ISP 1080 and 1280 (Dual) Ultra2,
1201#      ISP 12160 Ultra3 SCSI,
1202#      Qlogic ISP 2100 and ISP 2200 1Gb Fibre Channel host adapters.
1203#      Qlogic ISP 2300 and ISP 2312 2Gb Fibre Channel host adapters.
1204# ispfw: Firmware module for Qlogic host adapters
1205# mpt: LSI-Logic MPT/Fusion 53c1020 or 53c1030 Ultra4
1206#      or FC9x9 Fibre Channel host adapters.
1207# ncr: NCR 53C810, 53C825 self-contained SCSI host adapters.
1208# sym: Symbios/Logic 53C8XX family of PCI-SCSI I/O processors:
1209#      53C810, 53C810A, 53C815, 53C825,  53C825A, 53C860, 53C875,
1210#      53C876, 53C885,  53C895, 53C895A, 53C896,  53C897, 53C1510D,
1211#      53C1010-33, 53C1010-66.
1212# trm: Tekram DC395U/UW/F DC315U adapters.
1213# wds: WD7000
1214
1215#
1216# Note that the order is important in order for Buslogic ISA/EISA cards to be
1217# probed correctly.
1218#
1219device		bt
1220hint.bt.0.at="isa"
1221hint.bt.0.port="0x330"
1222device		adv
1223hint.adv.0.at="isa"
1224device		adw
1225device		aha
1226hint.aha.0.at="isa"
1227device		aic
1228hint.aic.0.at="isa"
1229device		ahb
1230device		ahc
1231device		ahd
1232device		amd
1233device		isp
1234hint.isp.0.disable="1"
1235hint.isp.0.role="3"
1236hint.isp.0.prefer_iomap="1"
1237hint.isp.0.prefer_memmap="1"
1238hint.isp.0.fwload_disable="1"
1239hint.isp.0.ignore_nvram="1"
1240hint.isp.0.fullduplex="1"
1241hint.isp.0.topology="lport"
1242hint.isp.0.topology="nport"
1243hint.isp.0.topology="lport-only"
1244hint.isp.0.topology="nport-only"
1245# we can't get u_int64_t types, nor can we get strings if it's got
1246# a leading 0x, hence this silly dodge.
1247hint.isp.0.portwnn="w50000000aaaa0000"
1248hint.isp.0.nodewnn="w50000000aaaa0001"
1249device		ispfw
1250device		mpt
1251device		ncr
1252device		sym
1253device		trm
1254device		wds
1255hint.wds.0.at="isa"
1256hint.wds.0.port="0x350"
1257hint.wds.0.irq="11"
1258hint.wds.0.drq="6"
1259
1260# The aic7xxx driver will attempt to use memory mapped I/O for all PCI
1261# controllers that have it configured only if this option is set. Unfortunately,
1262# this doesn't work on some motherboards, which prevents it from being the
1263# default.
1264options 	AHC_ALLOW_MEMIO
1265
1266# Dump the contents of the ahc controller configuration PROM.
1267options 	AHC_DUMP_EEPROM
1268
1269# Bitmap of units to enable targetmode operations.
1270options 	AHC_TMODE_ENABLE
1271
1272# Compile in aic79xx debugging code.
1273options 	AHD_DEBUG
1274
1275# Aic79xx driver debugging options.
1276# See the ahd(4) manpage
1277options 	AHD_DEBUG_OPTS=0xFFFFFFFF
1278
1279# Print human-readable register definitions when debugging
1280options 	AHD_REG_PRETTY_PRINT
1281
1282# The adw driver will attempt to use memory mapped I/O for all PCI
1283# controllers that have it configured only if this option is set.
1284options 	ADW_ALLOW_MEMIO
1285
1286# Options used in dev/isp/ (Qlogic SCSI/FC driver).
1287#
1288#	ISP_TARGET_MODE		-	enable target mode operation
1289#
1290options 	ISP_TARGET_MODE=1
1291
1292# Options used in dev/sym/ (Symbios SCSI driver).
1293#options 	SYM_SETUP_LP_PROBE_MAP	#-Low Priority Probe Map (bits)
1294					# Allows the ncr to take precedence
1295					# 1 (1<<0) -> 810a, 860
1296					# 2 (1<<1) -> 825a, 875, 885, 895
1297					# 4 (1<<2) -> 895a, 896, 1510d
1298#options 	SYM_SETUP_SCSI_DIFF	#-HVD support for 825a, 875, 885
1299					# disabled:0 (default), enabled:1
1300#options 	SYM_SETUP_PCI_PARITY	#-PCI parity checking
1301					# disabled:0, enabled:1 (default)
1302#options 	SYM_SETUP_MAX_LUN	#-Number of LUNs supported
1303					# default:8, range:[1..64]
1304
1305# The 'asr' driver provides support for current DPT/Adaptec SCSI RAID
1306# controllers (SmartRAID V and VI and later).
1307# These controllers require the CAM infrastructure.
1308#
1309device		asr
1310
1311# The 'dpt' driver provides support for old DPT controllers (http://www.dpt.com/).
1312# These have hardware RAID-{0,1,5} support, and do multi-initiator I/O.
1313# The DPT controllers are commonly re-licensed under other brand-names -
1314# some controllers by Olivetti, Dec, HP, AT&T, SNI, AST, Alphatronic, NEC and
1315# Compaq are actually DPT controllers.
1316#
1317# See src/sys/dev/dpt for debugging and other subtle options.
1318#   DPT_MEASURE_PERFORMANCE Enables a set of (semi)invasive metrics. Various
1319#                           instruments are enabled.  The tools in
1320#                           /usr/sbin/dpt_* assume these to be enabled.
1321#   DPT_HANDLE_TIMEOUTS     Normally device timeouts are handled by the DPT.
1322#                           If you ant the driver to handle timeouts, enable
1323#                           this option.  If your system is very busy, this
1324#                           option will create more trouble than solve.
1325#   DPT_TIMEOUT_FACTOR      Used to compute the excessive amount of time to
1326#                           wait when timing out with the above option.
1327#  DPT_DEBUG_xxxx           These are controllable from sys/dev/dpt/dpt.h
1328#  DPT_LOST_IRQ             When enabled, will try, once per second, to catch
1329#                           any interrupt that got lost.  Seems to help in some
1330#                           DPT-firmware/Motherboard combinations.  Minimal
1331#                           cost, great benefit.
1332#  DPT_RESET_HBA            Make "reset" actually reset the controller
1333#                           instead of fudging it.  Only enable this if you
1334#			    are 100% certain you need it.
1335
1336device		dpt
1337
1338# DPT options
1339#!CAM# options 	DPT_MEASURE_PERFORMANCE
1340#!CAM# options 	DPT_HANDLE_TIMEOUTS
1341options 	DPT_TIMEOUT_FACTOR=4
1342options 	DPT_LOST_IRQ
1343options 	DPT_RESET_HBA
1344
1345#
1346# Compaq "CISS" RAID controllers (SmartRAID 5* series)
1347# These controllers have a SCSI-like interface, and require the
1348# CAM infrastructure.
1349#
1350device		ciss
1351
1352#
1353# Intel Integrated RAID controllers.
1354# This driver was developed and is maintained by Intel.  Contacts
1355# at Intel for this driver are
1356# "Kannanthanam, Boji T" <boji.t.kannanthanam@intel.com> and
1357# "Leubner, Achim" <achim.leubner@intel.com>.
1358#
1359device		iir
1360
1361#
1362# Mylex AcceleRAID and eXtremeRAID controllers with v6 and later
1363# firmware.  These controllers have a SCSI-like interface, and require
1364# the CAM infrastructure.
1365#
1366device		mly
1367
1368#
1369# Compaq Smart RAID, Mylex DAC960 and AMI MegaRAID controllers.  Only
1370# one entry is needed; the code will find and configure all supported
1371# controllers.
1372#
1373device		ida		# Compaq Smart RAID
1374device		mlx		# Mylex DAC960
1375device		amr		# AMI MegaRAID
1376
1377#
1378# 3ware ATA RAID
1379#
1380device		twe		# 3ware ATA RAID
1381
1382#
1383# The 'ATA' driver supports all ATA and ATAPI devices, including PC Card
1384# devices. You only need one "device ata" for it to find all
1385# PCI and PC Card ATA/ATAPI devices on modern machines.
1386device		ata
1387device		atadisk		# ATA disk drives
1388device		atapicd		# ATAPI CDROM drives
1389device		atapifd		# ATAPI floppy drives
1390device		atapist		# ATAPI tape drives
1391device		atapicam	# emulate ATAPI devices as SCSI ditto via CAM
1392				# needs CAM to be present (scbus & pass)
1393#
1394# For older non-PCI, non-PnPBIOS systems, these are the hints lines to add:
1395hint.ata.0.at="isa"
1396hint.ata.0.port="0x1f0"
1397hint.ata.0.irq="14"
1398hint.ata.1.at="isa"
1399hint.ata.1.port="0x170"
1400hint.ata.1.irq="15"
1401
1402#
1403# The following options are valid on the ATA driver:
1404#
1405# ATA_STATIC_ID:	controller numbering is static ie depends on location
1406#			else the device numbers are dynamically allocated.
1407
1408options 	ATA_STATIC_ID
1409
1410#
1411# Standard floppy disk controllers and floppy tapes, supports
1412# the Y-E DATA External FDD (PC Card)
1413#
1414device		fdc
1415hint.fdc.0.at="isa"
1416hint.fdc.0.port="0x3F0"
1417hint.fdc.0.irq="6"
1418hint.fdc.0.drq="2"
1419#
1420# FDC_DEBUG enables floppy debugging.  Since the debug output is huge, you
1421# gotta turn it actually on by setting the variable fd_debug with DDB,
1422# however.
1423options 	FDC_DEBUG
1424#
1425# Activate this line if you happen to have an Insight floppy tape.
1426# Probing them proved to be dangerous for people with floppy disks only,
1427# so it's "hidden" behind a flag:
1428#hint.fdc.0.flags="1"
1429
1430# Specify floppy devices
1431hint.fd.0.at="fdc0"
1432hint.fd.0.drive="0"
1433hint.fd.1.at="fdc0"
1434hint.fd.1.drive="1"
1435
1436#
1437# sio: serial ports (see sio(4)), including support for various
1438#      PC Card devices, such as Modem and NICs (see etc/defaults/pccard.conf)
1439#
1440device		sio
1441hint.sio.0.at="isa"
1442hint.sio.0.port="0x3F8"
1443hint.sio.0.flags="0x10"
1444hint.sio.0.irq="4"
1445
1446# Options for sio:
1447options 	COM_ESP			# Code for Hayes ESP.
1448options 	COM_MULTIPORT		# Code for some cards with shared IRQs.
1449options 	CONSPEED=115200		# Speed for serial console
1450					# (default 9600).
1451
1452# `flags' specific to sio(4).  See below for flags used by both sio(4) and
1453# uart(4).
1454#	0x20	force this unit to be the console (unless there is another
1455#		higher priority console).  This replaces the COMCONSOLE option.
1456#	0x40	reserve this unit for low level console operations.  Do not
1457#		access the device in any normal way.
1458# PnP `flags'
1459#	0x1	disable probing of this device.  Used to prevent your modem
1460#		from being attached as a PnP modem.
1461# Other flags for sio that aren't documented in the man page.
1462#	0x20000	enable hardware RTS/CTS and larger FIFOs.  Only works for
1463#		ST16650A-compatible UARTs.
1464
1465#
1466# uart: newbusified driver for serial interfaces.  It consolidates the sio(4),
1467#	sab(4) and zs(4) drivers.
1468#
1469device		uart
1470
1471# Options for uart(4)
1472options 	UART_PPS_ON_CTS		# Do time pulse capturing using CTS
1473					# instead of DCD.
1474
1475# The following hint should only be used for pure ISA devices.  It is not
1476# needed otherwise.  Use of hints is strongly discouraged.
1477hint.uart.0.at="isa"
1478
1479# The following 3 hints are used when the UART is a system device (i.e., a
1480# console or debug port), but only on platforms that don't have any other
1481# means to pass the information to the kernel.  The unit number of the hint
1482# is only used to bundle the hints together.  There is no relation to the
1483# unit number of the probed UART.
1484hint.uart.0.port="0x3f8"
1485hint.uart.0.flags="0x10"
1486hint.uart.0.baud="115200"
1487
1488# `flags' for serial drivers that support consoles like sio(4) and uart(4):
1489#	0x10	enable console support for this unit.  Other console flags
1490#		(if applicable) are ignored unless this is set.  Enabling
1491#		console support does not make the unit the preferred console.
1492#		Boot with -h or set boot_serial=YES in the loader.  For sio(4)
1493#		specifically, the 0x20 flag can also be set (see above).
1494#		Currently, at most one unit can have console support; the
1495#		first one (in config file order) with this flag set is
1496#		preferred.  Setting this flag for sio0 gives the old behaviour.
1497#	0x80	use this port for serial line gdb support in ddb.  Also known
1498#		as debug port.
1499#
1500
1501# Options for serial drivers that support consoles:
1502options 	BREAK_TO_DEBUGGER	# A BREAK on a serial console goes to
1503					# ddb, if available.
1504
1505# Solaris implements a new BREAK which is initiated by a character
1506# sequence CR ~ ^b which is similar to a familiar pattern used on
1507# Sun servers by the Remote Console.
1508options 	ALT_BREAK_TO_DEBUGGER
1509
1510# PCI Universal Communications driver
1511# Supports various single and multi port PCI serial cards. Maybe later
1512# also the parallel ports on combination serial/parallel cards. New cards
1513# can be added in src/sys/dev/puc/pucdata.c.
1514#
1515# If the PUC_FASTINTR option is used the driver will try to use fast
1516# interrupts. The card must then be the only user of that interrupt.
1517# Interrupts cannot be shared when using PUC_FASTINTR.
1518device		puc
1519options 	PUC_FASTINTR
1520
1521#
1522# Network interfaces:
1523#
1524# MII bus support is required for some PCI 10/100 ethernet NICs,
1525# namely those which use MII-compliant transceivers or implement
1526# tranceiver control interfaces that operate like an MII. Adding
1527# "device miibus0" to the kernel config pulls in support for
1528# the generic miibus API and all of the PHY drivers, including a
1529# generic one for PHYs that aren't specifically handled by an
1530# individual driver.
1531device		miibus
1532
1533# an:   Aironet 4500/4800 802.11 wireless adapters. Supports the PCMCIA,
1534#       PCI and ISA varieties.
1535# awi:  Support for IEEE 802.11 PC Card devices using the AMD Am79C930 and
1536#       Harris (Intersil) Chipset with PCnetMobile firmware by AMD.
1537# bge:	Support for gigabit ethernet adapters based on the Broadcom
1538#	BCM570x family of controllers, including the 3Com 3c996-T,
1539#	the Netgear GA302T, the SysKonnect SK-9D21 and SK-9D41, and
1540#	the embedded gigE NICs on Dell PowerEdge 2550 servers.
1541# cm:	Arcnet SMC COM90c26 / SMC COM90c56
1542#	(and SMC COM90c66 in '56 compatibility mode) adapters.
1543# cnw:  Xircom CNW/Netware Airsurfer PC Card adapter
1544# cs:   IBM Etherjet and other Crystal Semi CS89x0-based adapters
1545# dc:   Support for PCI fast ethernet adapters based on the DEC/Intel 21143
1546#       and various workalikes including:
1547#       the ADMtek AL981 Comet and AN985 Centaur, the ASIX Electronics
1548#       AX88140A and AX88141, the Davicom DM9100 and DM9102, the Lite-On
1549#       82c168 and 82c169 PNIC, the Lite-On/Macronix LC82C115 PNIC II
1550#       and the Macronix 98713/98713A/98715/98715A/98725 PMAC. This driver
1551#       replaces the old al, ax, dm, pn and mx drivers.  List of brands:
1552#       Digital DE500-BA, Kingston KNE100TX, D-Link DFE-570TX, SOHOware SFA110,
1553#       SVEC PN102-TX, CNet Pro110B, 120A, and 120B, Compex RL100-TX,
1554#       LinkSys LNE100TX, LNE100TX V2.0, Jaton XpressNet, Alfa Inc GFC2204,
1555#       KNE110TX.
1556# de:   Digital Equipment DC21040
1557# em:   Intel Pro/1000 Gigabit Ethernet 82542, 82543, 82544 based adapters.
1558# ep:   3Com 3C509, 3C529, 3C556, 3C562D, 3C563D, 3C572, 3C574X, 3C579, 3C589
1559#       and PC Card devices using these chipsets.
1560# ex:   Intel EtherExpress Pro/10 and other i82595-based adapters,
1561#       Olicom Ethernet PC Card devices.
1562# fe:   Fujitsu MB86960A/MB86965A Ethernet
1563# fea:  DEC DEFEA EISA FDDI adapter
1564# fpa:  Support for the Digital DEFPA PCI FDDI. `device fddi' is also needed.
1565# fxp:  Intel EtherExpress Pro/100B
1566#	(hint of prefer_iomap can be done to prefer I/O instead of Mem mapping)
1567# gx:   Intel Pro/1000 Gigabit Ethernet (82542, 82543-F, 82543-T)
1568# lge:	Support for PCI gigabit ethernet adapters based on the Level 1
1569#	LXT1001 NetCellerator chipset. This includes the D-Link DGE-500SX,
1570#	SMC TigerCard 1000 (SMC9462SX), and some Addtron cards.
1571# my:	Myson Fast Ethernet (MTD80X, MTD89X)
1572# nge:	Support for PCI gigabit ethernet adapters based on the National
1573#	Semiconductor DP83820 and DP83821 chipset. This includes the
1574#	SMC EZ Card 1000 (SMC9462TX), D-Link DGE-500T, Asante FriendlyNet
1575#	GigaNIX 1000TA and 1000TPC, the Addtron AEG320T, the LinkSys
1576#	EG1032 and EG1064, the Surecom EP-320G-TX and the Netgear GA622T.
1577# pcn:	Support for PCI fast ethernet adapters based on the AMD Am79c97x
1578#	chipsets, including the PCnet/FAST, PCnet/FAST+, PCnet/PRO and
1579#	PCnet/Home. These were previously handled by the lnc driver (and
1580#	still will be if you leave this driver out of the kernel).
1581# rl:   Support for PCI fast ethernet adapters based on the RealTek 8129/8139
1582#       chipset.  Note that the RealTek driver defaults to using programmed
1583#       I/O to do register accesses because memory mapped mode seems to cause
1584#       severe lockups on SMP hardware.  This driver also supports the
1585#       Accton EN1207D `Cheetah' adapter, which uses a chip called
1586#       the MPX 5030/5038, which is either a RealTek in disguise or a
1587#       RealTek workalike.  Note that the D-Link DFE-530TX+ uses the RealTek
1588#       chipset and is supported by this driver, not the 'vr' driver.
1589# sf:   Support for Adaptec Duralink PCI fast ethernet adapters based on the
1590#       Adaptec AIC-6915 "starfire" controller.
1591#       This includes dual and quad port cards, as well as one 100baseFX card.
1592#       Most of these are 64-bit PCI devices, except for one single port
1593#       card which is 32-bit.
1594# sis:  Support for NICs based on the Silicon Integrated Systems SiS 900,
1595#       SiS 7016 and NS DP83815 PCI fast ethernet controller chips.
1596# sbsh:	Support for Granch SBNI16 SHDSL modem PCI adapters
1597# sk:   Support for the SysKonnect SK-984x series PCI gigabit ethernet NICs.
1598#       This includes the SK-9841 and SK-9842 single port cards (single mode
1599#       and multimode fiber) and the SK-9843 and SK-9844 dual port cards
1600#       (also single mode and multimode).
1601#       The driver will autodetect the number of ports on the card and
1602#       attach each one as a separate network interface.
1603# sn:   Support for ISA and PC Card Ethernet devices using the
1604#       SMC91C90/92/94/95 chips.
1605# ste:  Sundance Technologies ST201 PCI fast ethernet controller, includes
1606#       the D-Link DFE-550TX.
1607# ti:   Support for PCI gigabit ethernet NICs based on the Alteon Networks
1608#       Tigon 1 and Tigon 2 chipsets.  This includes the Alteon AceNIC, the
1609#       3Com 3c985, the Netgear GA620 and various others.  Note that you will
1610#       probably want to bump up NMBCLUSTERS a lot to use this driver.
1611# tl:   Support for the Texas Instruments TNETE100 series 'ThunderLAN'
1612#       cards and integrated ethernet controllers.  This includes several
1613#       Compaq Netelligent 10/100 cards and the built-in ethernet controllers
1614#       in several Compaq Prosignia, Proliant and Deskpro systems.  It also
1615#       supports several Olicom 10Mbps and 10/100 boards.
1616# tx:   SMC 9432 TX, BTX and FTX cards. (SMC EtherPower II serie)
1617# txp:	Support for 3Com 3cR990 cards with the "Typhoon" chipset
1618# vr:   Support for various fast ethernet adapters based on the VIA
1619#       Technologies VT3043 `Rhine I' and VT86C100A `Rhine II' chips,
1620#       including the D-Link DFE530TX (see 'rl' for DFE530TX+), the Hawking
1621#       Technologies PN102TX, and the AOpen/Acer ALN-320.
1622# vx:   3Com 3C590 and 3C595
1623# wb:   Support for fast ethernet adapters based on the Winbond W89C840F chip.
1624#       Note: this is not the same as the Winbond W89C940F, which is a
1625#       NE2000 clone.
1626# wi:   Lucent WaveLAN/IEEE 802.11 PCMCIA adapters. Note: this supports both
1627#       the PCMCIA and ISA cards: the ISA card is really a PCMCIA to ISA
1628#       bridge with a PCMCIA adapter plugged into it.
1629# xe:   Xircom/Intel EtherExpress Pro100/16 PC Card ethernet controller,
1630#       Accton Fast EtherCard-16, Compaq Netelligent 10/100 PC Card,
1631#       Toshiba 10/100 Ethernet PC Card, Xircom 16-bit Ethernet + Modem 56
1632# xl:   Support for the 3Com 3c900, 3c905, 3c905B and 3c905C (Fast)
1633#       Etherlink XL cards and integrated controllers.  This includes the
1634#       integrated 3c905B-TX chips in certain Dell Optiplex and Dell
1635#       Precision desktop machines and the integrated 3c905-TX chips
1636#       in Dell Latitude laptop docking stations.
1637#       Also supported: 3Com 3c980(C)-TX, 3Com 3cSOHO100-TX, 3Com 3c450-TX
1638
1639# Order for ISA/EISA devices is important here
1640
1641device		cm
1642hint.cm.0.at="isa"
1643hint.cm.0.port="0x2e0"
1644hint.cm.0.irq="9"
1645hint.cm.0.maddr="0xdc000"
1646device		cs
1647hint.cs.0.at="isa"
1648hint.cs.0.port="0x300"
1649device		ep
1650device		ex
1651device		fe
1652hint.fe.0.at="isa"
1653hint.fe.0.port="0x300"
1654device		fea
1655device		sn
1656hint.sn.0.at="isa"
1657hint.sn.0.port="0x300"
1658hint.sn.0.irq="10"
1659device		an
1660device		awi
1661device		cnw
1662device		wi
1663device		xe
1664
1665# PCI Ethernet NICs that use the common MII bus controller code.
1666device		dc		# DEC/Intel 21143 and various workalikes
1667device		fxp		# Intel EtherExpress PRO/100B (82557, 82558)
1668hint.fxp.0.prefer_iomap="0"
1669device		my		# Myson Fast Ethernet (MTD80X, MTD89X)
1670device		rl		# RealTek 8129/8139
1671device		pcn		# AMD Am79C97x PCI 10/100 NICs
1672device		sf		# Adaptec AIC-6915 (``Starfire'')
1673device		sbsh		# Granch SBNI16 SHDSL modem
1674device		sis		# Silicon Integrated Systems SiS 900/SiS 7016
1675device		ste		# Sundance ST201 (D-Link DFE-550TX)
1676device		tl		# Texas Instruments ThunderLAN
1677device		tx		# SMC EtherPower II (83c170 ``EPIC'')
1678device		vr		# VIA Rhine, Rhine II
1679device		wb		# Winbond W89C840F
1680device		xl		# 3Com 3c90x (``Boomerang'', ``Cyclone'')
1681
1682# PCI Ethernet NICs.
1683device		de		# DEC/Intel DC21x4x (``Tulip'')
1684device		txp		# 3Com 3cR990 (``Typhoon'')
1685device		vx		# 3Com 3c590, 3c595 (``Vortex'')
1686
1687# PCI Gigabit & FDDI NICs.
1688device		bge
1689device		gx
1690device		lge
1691device		nge
1692device		sk
1693device		ti
1694device		fpa
1695
1696# Use "private" jumbo buffers allocated exclusively for the ti(4) driver.
1697# This option is incompatible with the TI_JUMBO_HDRSPLIT option below.
1698#options 	TI_PRIVATE_JUMBOS
1699# Turn on the header splitting option for the ti(4) driver firmware.  This
1700# only works for Tigon II chips, and has no effect for Tigon I chips.
1701options 	TI_JUMBO_HDRSPLIT
1702
1703# These two options allow manipulating the mbuf cluster size and mbuf size,
1704# respectively.  Be very careful with NIC driver modules when changing
1705# these from their default values, because that can potentially cause a
1706# mismatch between the mbuf size assumed by the kernel and the mbuf size
1707# assumed by a module.  The only driver that currently has the ability to
1708# detect a mismatch is ti(4).
1709options 	MCLSHIFT=12	# mbuf cluster shift in bits, 12 == 4KB
1710options 	MSIZE=512	# mbuf size in bytes
1711
1712#
1713# ATM related options (Cranor version)
1714# (note: this driver cannot be used with the HARP ATM stack)
1715#
1716# The `en' device provides support for Efficient Networks (ENI)
1717# ENI-155 PCI midway cards, and the Adaptec 155Mbps PCI ATM cards (ANA-59x0).
1718#
1719# The `hatm' device provides support for Fore/Marconi HE155 and HE622
1720# ATM PCI cards.
1721#
1722# The `fatm' device provides support for Fore PCA200E ATM PCI cards.
1723#
1724# The `patm' device provides support for IDT77252 based cards like
1725# ProSum's ProATM-155 and ProATM-25 and IDT's evaluation boards.
1726#
1727# atm device provides generic atm functions and is required for
1728# atm devices.
1729# NATM enables the netnatm protocol family that can be used to
1730# bypass TCP/IP.
1731#
1732# utopia provides the access to the ATM PHY chips and is required for en,
1733# hatm and fatm.
1734#
1735# the current driver supports only PVC operations (no atm-arp, no multicast).
1736# for more details, please read the original documents at
1737# http://www.ccrc.wustl.edu/pub/chuck/tech/bsdatm/bsdatm.html
1738#
1739device		atm
1740device		en
1741device		fatm			#Fore PCA200E
1742device		hatm			#Fore/Marconi HE155/622
1743device		patm			#IDT77252 cards (ProATM and IDT)
1744device		utopia			#ATM PHY driver
1745options 	NATM			#native ATM
1746
1747options 	LIBMBPOOL		#needed by patm, iatm
1748
1749#
1750# Audio drivers: `pcm', `sbc', `gusc'
1751#
1752# pcm: PCM audio through various sound cards.
1753#
1754# This has support for a large number of new audio cards, based on
1755# CS423x, OPTi931, Yamaha OPL-SAx, and also for SB16, GusPnP.
1756# For more information about this driver and supported cards,
1757# see the pcm.4 man page.
1758#
1759# The flags of the device tells the device a bit more info about the
1760# device that normally is obtained through the PnP interface.
1761#	bit  2..0   secondary DMA channel;
1762#	bit  4      set if the board uses two dma channels;
1763#	bit 15..8   board type, overrides autodetection; leave it
1764#		    zero if don't know what to put in (and you don't,
1765#		    since this is unsupported at the moment...).
1766#
1767# Supported cards include:
1768# Creative SoundBlaster ISA PnP/non-PnP
1769# Supports ESS and Avance ISA chips as well.
1770# Gravis UltraSound ISA PnP/non-PnP
1771# Crystal Semiconductor CS461x/428x PCI
1772# Neomagic 256AV (ac97)
1773# Most of the more common ISA/PnP sb/mss/ess compatable cards.
1774
1775device		pcm
1776
1777# For non-pnp sound cards with no bridge drivers only:
1778hint.pcm.0.at="isa"
1779hint.pcm.0.irq="10"
1780hint.pcm.0.drq="1"
1781hint.pcm.0.flags="0x0"
1782
1783#
1784# midi: MIDI interfaces and synthesizers
1785#
1786
1787device		midi
1788
1789# For non-pnp sound cards with no bridge drivers:
1790hint.midi.0.at="isa"
1791hint.midi.0.irq="5"
1792hint.midi.0.flags="0x0"
1793
1794# For serial ports (this example configures port 2):
1795# TODO: implement generic tty-midi interface so that we can use
1796#	other uarts.
1797hint.midi.0.at="isa"
1798hint.midi.0.port="0x2F8"
1799hint.midi.0.irq="3"
1800
1801#
1802# seq: MIDI sequencer
1803#
1804
1805device		seq
1806
1807# The bridge drivers for sound cards.  These can be separately configured
1808# for providing services to the likes of new-midi.
1809# When used with 'device pcm' they also provide pcm sound services.
1810#
1811# sbc:  Creative SoundBlaster ISA PnP/non-PnP
1812#	Supports ESS and Avance ISA chips as well.
1813# gusc: Gravis UltraSound ISA PnP/non-PnP
1814# csa:  Crystal Semiconductor CS461x/428x PCI
1815
1816# For non-PnP cards:
1817device		sbc
1818hint.sbc.0.at="isa"
1819hint.sbc.0.port="0x220"
1820hint.sbc.0.irq="5"
1821hint.sbc.0.drq="1"
1822hint.sbc.0.flags="0x15"
1823device		gusc
1824hint.gusc.0.at="isa"
1825hint.gusc.0.port="0x220"
1826hint.gusc.0.irq="5"
1827hint.gusc.0.drq="1"
1828hint.gusc.0.flags="0x13"
1829
1830#
1831# Miscellaneous hardware:
1832#
1833# scd: Sony CD-ROM using proprietary (non-ATAPI) interface
1834# mcd: Mitsumi CD-ROM using proprietary (non-ATAPI) interface
1835# bktr: Brooktree bt848/848a/849a/878/879 video capture and TV Tuner board
1836# cy: Cyclades serial driver
1837# joy: joystick (including IO DATA PCJOY PC Card joystick)
1838# rc: RISCom/8 multiport card
1839# rp: Comtrol Rocketport(ISA/PCI) - single card
1840# si: Specialix SI/XIO 4-32 port terminal multiplexor
1841# nmdm: nullmodem terminal driver (see nmdm(4))
1842
1843# Notes on the Comtrol Rocketport driver:
1844#
1845# The exact values used for rp0 depend on how many boards you have
1846# in the system.  The manufacturer's sample configs are listed as:
1847#
1848#               device  rp	# core driver support
1849#
1850#   Comtrol Rocketport ISA single card
1851#		hint.rp.0.at="isa"
1852#		hint.rp.0.port="0x280"
1853#
1854#   If instead you have two ISA cards, one installed at 0x100 and the
1855#   second installed at 0x180, then you should add the following to
1856#   your kernel probe hints:
1857#		hint.rp.0.at="isa"
1858#		hint.rp.0.port="0x100"
1859#		hint.rp.1.at="isa"
1860#		hint.rp.1.port="0x180"
1861#
1862#   For 4 ISA cards, it might be something like this:
1863#		hint.rp.0.at="isa"
1864#		hint.rp.0.port="0x180"
1865#		hint.rp.1.at="isa"
1866#		hint.rp.1.port="0x100"
1867#		hint.rp.2.at="isa"
1868#		hint.rp.2.port="0x340"
1869#		hint.rp.3.at="isa"
1870#		hint.rp.3.port="0x240"
1871#
1872#   For PCI cards, you need no hints.
1873
1874# Mitsumi CD-ROM
1875device		mcd
1876hint.mcd.0.at="isa"
1877hint.mcd.0.port="0x300"
1878# for the Sony CDU31/33A CDROM
1879device		scd
1880hint.scd.0.at="isa"
1881hint.scd.0.port="0x230"
1882device		joy			# PnP aware, hints for nonpnp only
1883hint.joy.0.at="isa"
1884hint.joy.0.port="0x201"
1885device		rc
1886hint.rc.0.at="isa"
1887hint.rc.0.port="0x220"
1888hint.rc.0.irq="12"
1889device		rp
1890hint.rp.0.at="isa"
1891hint.rp.0.port="0x280"
1892device		si
1893options 	SI_DEBUG
1894hint.si.0.at="isa"
1895hint.si.0.maddr="0xd0000"
1896hint.si.0.irq="12"
1897device		nmdm
1898
1899#
1900# The 'bktr' device is a PCI video capture device using the Brooktree
1901# bt848/bt848a/bt849a/bt878/bt879 chipset. When used with a TV Tuner it forms a
1902# TV card, eg Miro PC/TV, Hauppauge WinCast/TV WinTV, VideoLogic Captivator,
1903# Intel Smart Video III, AverMedia, IMS Turbo, FlyVideo.
1904#
1905# options 	OVERRIDE_CARD=xxx
1906# options 	OVERRIDE_TUNER=xxx
1907# options 	OVERRIDE_MSP=1
1908# options 	OVERRIDE_DBX=1
1909# These options can be used to override the auto detection
1910# The current values for xxx are found in src/sys/dev/bktr/bktr_card.h
1911# Using sysctl(8) run-time overrides on a per-card basis can be made
1912#
1913# options 	BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_PAL
1914# or
1915# options 	BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_NTSC
1916# Specifes the default video capture mode.
1917# This is required for Dual Crystal (28&35Mhz) boards where PAL is used
1918# to prevent hangs during initialisation.  eg VideoLogic Captivator PCI.
1919#
1920# options 	BKTR_USE_PLL
1921# PAL or SECAM users who have a 28Mhz crystal (and no 35Mhz crystal)
1922# must enable PLL mode with this option. eg some new Bt878 cards.
1923#
1924# options 	BKTR_GPIO_ACCESS
1925# This enable IOCTLs which give user level access to the GPIO port.
1926#
1927# options 	BKTR_NO_MSP_RESET
1928# Prevents the MSP34xx reset. Good if you initialise the MSP in another OS first
1929#
1930# options 	BKTR_430_FX_MODE
1931# Switch Bt878/879 cards into Intel 430FX chipset compatibility mode.
1932#
1933# options 	BKTR_SIS_VIA_MODE
1934# Switch Bt878/879 cards into SIS/VIA chipset compatibility mode which is
1935# needed for some old SiS and VIA chipset motherboards.
1936# This also allows Bt878/879 chips to work on old OPTi (<1997) chipset
1937# motherboards and motherboards with bad or incomplete PCI 2.1 support.
1938# As a rough guess, old = before 1998
1939#
1940# options 	BKTR_NEW_MSP34XX_DRIVER
1941# Use new, more complete initialization scheme for the msp34* soundchip.
1942# Should fix stereo autodetection if the old driver does only output
1943# mono sound.
1944
1945#
1946# options	BKTR_USE_FREEBSD_SMBUS
1947# Compile with FreeBSD SMBus implementation
1948#
1949# Brooktree driver has been ported to the new I2C framework. Thus,
1950# you'll need to have the following 3 lines in the kernel config.
1951#     device smbus
1952#     device iicbus
1953#     device iicbb
1954#     device iicsmb
1955# The iic and smb devices are only needed if you want to control other
1956# I2C slaves connected to the external connector of some cards.
1957#
1958device		bktr
1959
1960#
1961# PC Card/PCMCIA
1962# (OLDCARD)
1963#
1964# card: pccard slots
1965# pcic: isa/pccard bridge
1966#device		pcic
1967#hint.pcic.0.at="isa"
1968#hint.pcic.1.at="isa"
1969#device		card	1
1970
1971#
1972# PC Card/PCMCIA and Cardbus
1973# (NEWCARD)
1974#
1975# Note that NEWCARD and OLDCARD are incompatible.  Do not use both at the same
1976# time.
1977#
1978# pccbb: pci/cardbus bridge implementing YENTA interface
1979# pccard: pccard slots
1980# cardbus: cardbus slots
1981device		cbb
1982device		pccard
1983device		cardbus
1984#device		pcic		ISA attachment currently busted
1985#hint.pcic.0.at="isa"
1986#hint.pcic.1.at="isa"
1987
1988#
1989# SMB bus
1990#
1991# System Management Bus support is provided by the 'smbus' device.
1992# Access to the SMBus device is via the 'smb' device (/dev/smb*),
1993# which is a child of the 'smbus' device.
1994#
1995# Supported devices:
1996# smb		standard io through /dev/smb*
1997#
1998# Supported SMB interfaces:
1999# iicsmb	I2C to SMB bridge with any iicbus interface
2000# bktr		brooktree848 I2C hardware interface
2001# intpm		Intel PIIX4 (82371AB, 82443MX) Power Management Unit
2002# alpm		Acer Aladdin-IV/V/Pro2 Power Management Unit
2003# ichsmb	Intel ICH SMBus controller chips (82801AA, 82801AB, 82801BA)
2004# viapm		VIA VT82C586B/596B/686A and VT8233 Power Management Unit
2005# amdpm		AMD 756 Power Management Unit
2006# nfpm		NVIDIA nForce Power Management Unit
2007#
2008device		smbus		# Bus support, required for smb below.
2009
2010device		intpm
2011device		alpm
2012device		ichsmb
2013device		viapm
2014device		amdpm
2015device		nfpm
2016
2017device		smb
2018
2019#
2020# I2C Bus
2021#
2022# Philips i2c bus support is provided by the `iicbus' device.
2023#
2024# Supported devices:
2025# ic	i2c network interface
2026# iic	i2c standard io
2027# iicsmb i2c to smb bridge. Allow i2c i/o with smb commands.
2028#
2029# Supported interfaces:
2030# bktr	brooktree848 I2C software interface
2031#
2032# Other:
2033# iicbb	generic I2C bit-banging code (needed by lpbb, bktr)
2034#
2035device		iicbus		# Bus support, required for ic/iic/iicsmb below.
2036device		iicbb
2037
2038device		ic
2039device		iic
2040device		iicsmb		# smb over i2c bridge
2041
2042# Parallel-Port Bus
2043#
2044# Parallel port bus support is provided by the `ppbus' device.
2045# Multiple devices may be attached to the parallel port, devices
2046# are automatically probed and attached when found.
2047#
2048# Supported devices:
2049# vpo	Iomega Zip Drive
2050#	Requires SCSI disk support ('scbus' and 'da'), best
2051#	performance is achieved with ports in EPP 1.9 mode.
2052# lpt	Parallel Printer
2053# plip	Parallel network interface
2054# ppi	General-purpose I/O ("Geek Port") + IEEE1284 I/O
2055# pps	Pulse per second Timing Interface
2056# lpbb	Philips official parallel port I2C bit-banging interface
2057#
2058# Supported interfaces:
2059# ppc	ISA-bus parallel port interfaces.
2060#
2061
2062options 	PPC_PROBE_CHIPSET # Enable chipset specific detection
2063				  # (see flags in ppc(4))
2064options 	DEBUG_1284	# IEEE1284 signaling protocol debug
2065options 	PERIPH_1284	# Makes your computer act as an IEEE1284
2066				# compliant peripheral
2067options 	DONTPROBE_1284	# Avoid boot detection of PnP parallel devices
2068options 	VP0_DEBUG	# ZIP/ZIP+ debug
2069options 	LPT_DEBUG	# Printer driver debug
2070options 	PPC_DEBUG	# Parallel chipset level debug
2071options 	PLIP_DEBUG	# Parallel network IP interface debug
2072options 	PCFCLOCK_VERBOSE         # Verbose pcfclock driver
2073options 	PCFCLOCK_MAX_RETRIES=5   # Maximum read tries (default 10)
2074
2075device		ppc
2076hint.ppc.0.at="isa"
2077hint.ppc.0.irq="7"
2078device		ppbus
2079device		vpo
2080device		lpt
2081device		plip
2082device		ppi
2083device		pps
2084device		lpbb
2085device		pcfclock
2086
2087# Kernel BOOTP support
2088
2089options 	BOOTP		# Use BOOTP to obtain IP address/hostname
2090				# Requires NFSCLIENT and NFS_ROOT
2091options 	BOOTP_NFSROOT	# NFS mount root filesystem using BOOTP info
2092options 	BOOTP_NFSV3	# Use NFS v3 to NFS mount root
2093options 	BOOTP_COMPAT	# Workaround for broken bootp daemons.
2094options 	BOOTP_WIRED_TO=fxp0 # Use interface fxp0 for BOOTP
2095
2096#
2097# Add tie-ins for a hardware watchdog.  This only enable the hooks;
2098# the user must still supply the actual driver.
2099#
2100options 	HW_WDOG
2101
2102#
2103# Add software watchdog routines.  This will add some sysctl OIDs that
2104# can be used in combination with an external daemon to create a
2105# software-based watchdog solution.
2106#
2107options 	WATCHDOG
2108
2109#
2110# Disable swapping of upages and stack pages.  This option removes all
2111# code which actually performs swapping, so it's not possible to turn
2112# it back on at run-time.
2113#
2114# This is sometimes usable for systems which don't have any swap space
2115# (see also sysctls "vm.defer_swapspace_pageouts" and
2116# "vm.disable_swapspace_pageouts")
2117#
2118#options 	NO_SWAPPING
2119
2120# Set the number of sf_bufs to allocate. sf_bufs are virtual buffers
2121# for sendfile(2) that are used to map file VM pages, and normally
2122# default to a quantity that is roughly 16*MAXUSERS+512. You would
2123# typically want about 4 of these for each simultaneous file send.
2124#
2125options 	NSFBUFS=1024
2126
2127#
2128# Enable extra debugging code for locks.  This stores the filename and
2129# line of whatever acquired the lock in the lock itself, and change a
2130# number of function calls to pass around the relevant data.  This is
2131# not at all useful unless you are debugging lock code.  Also note
2132# that it is likely to break e.g. fstat(1) unless you recompile your
2133# userland with -DDEBUG_LOCKS as well.
2134#
2135options 	DEBUG_LOCKS
2136
2137
2138#####################################################################
2139# USB support
2140# UHCI controller
2141device		uhci
2142# OHCI controller
2143device		ohci
2144# EHCI controller
2145device		ehci
2146# General USB code (mandatory for USB)
2147device		usb
2148#
2149# USB Double Bulk Pipe devices
2150device		udbp
2151# Generic USB device driver
2152device		ugen
2153# Human Interface Device (anything with buttons and dials)
2154device		uhid
2155# USB keyboard
2156device		ukbd
2157# USB printer
2158device		ulpt
2159# USB Iomega Zip 100 Drive (Requires scbus and da)
2160device		umass
2161# USB support for Belkin F5U109 and Magic Control Technology serial adapters
2162device		umct
2163# USB modem support
2164device		umodem
2165# USB mouse
2166device		ums
2167# Diamond Rio 500 Mp3 player
2168device		urio
2169# USB scanners
2170device		uscanner
2171# USB serial support
2172device		ucom
2173# USB support for serial adapters based on the FT8U100AX and FT8U232AM
2174device		uftdi
2175# USB support for Prolific PL-2303 serial adapters
2176device		uplcom
2177# USB support for Belkin F5U103 and compatible serial adapters
2178device		ubsa
2179# USB serial support for DDI pocket's PHS
2180device		uvscom
2181# USB Visor and Palm devices
2182device		uvisor
2183
2184# USB Fm Radio
2185device		ufm
2186#
2187# ADMtek USB ethernet. Supports the LinkSys USB100TX,
2188# the Billionton USB100, the Melco LU-ATX, the D-Link DSB-650TX
2189# and the SMC 2202USB. Also works with the ADMtek AN986 Pegasus
2190# eval board.
2191device		aue
2192#
2193# CATC USB-EL1201A USB ethernet. Supports the CATC Netmate
2194# and Netmate II, and the Belkin F5U111.
2195device		cue
2196#
2197# Kawasaki LSI ethernet. Supports the LinkSys USB10T,
2198# Entrega USB-NET-E45, Peracom Ethernet Adapter, the
2199# 3Com 3c19250, the ADS Technologies USB-10BT, the ATen UC10T,
2200# the Netgear EA101, the D-Link DSB-650, the SMC 2102USB
2201# and 2104USB, and the Corega USB-T.
2202device		kue
2203#
2204# RealTek RTL8150 USB to fast ethernet. Supports the Melco LUA-KTX
2205# and the GREEN HOUSE GH-USB100B.
2206device		rue
2207
2208# debugging options for the USB subsystem
2209#
2210options 	USB_DEBUG
2211
2212# options for ukbd:
2213options 	UKBD_DFLT_KEYMAP	# specify the built-in keymap
2214makeoptions	UKBD_DFLT_KEYMAP=it.iso
2215
2216# options for uplcom:
2217options 	UPLCOM_INTR_INTERVAL=100	# interrpt pipe interval
2218						# in milliseconds
2219
2220# options for uvscom:
2221options 	UVSCOM_DEFAULT_OPKTSIZE=8	# default output packet size
2222options 	UVSCOM_INTR_INTERVAL=100	# interrpt pipe interval
2223						# in milliseconds
2224
2225#####################################################################
2226# FireWire support
2227
2228device		firewire	# FireWire bus code
2229device		sbp		# SCSI over Firewire (Requires scbus and da)
2230device		sbp_targ	# SBP-2 Target mode  (Requires scbus and targ)
2231device		fwe		# Ethernet over FireWire (non-standard!)
2232
2233#####################################################################
2234# dcons support (Dumb Console Device)
2235
2236device		dcons			# dumb console driver
2237device		dcons_crom		# FireWire attachment
2238options 	DCONS_BUF_SIZE=16384	# buffer size
2239options 	DCONS_POLL_HZ=100	# polling rate
2240options 	DCONS_FORCE_CONSOLE=0	# force to be the primary console
2241options 	DCONS_FORCE_GDB=1	# force to be the gdb device
2242
2243#####################################################################
2244# crypto subsystem
2245#
2246# This is a port of the openbsd crypto framework.  Include this when
2247# configuring FAST_IPSEC and when you have a h/w crypto device to accelerate
2248# user applications that link to openssl.
2249#
2250# Drivers are ports from openbsd with some simple enhancements that have
2251# been fed back to openbsd.
2252
2253device		crypto		# core crypto support
2254device		cryptodev	# /dev/crypto for access to h/w
2255
2256device		rndtest		# FIPS 140-2 entropy tester
2257
2258device		hifn		# Hifn 7951, 7781, etc.
2259options 	HIFN_DEBUG	# enable debugging support: hw.hifn.debug
2260options 	HIFN_RNDTEST	# enable rndtest support
2261
2262device		ubsec		# Broadcom 5501, 5601, 58xx
2263options 	UBSEC_DEBUG	# enable debugging support: hw.ubsec.debug
2264options 	UBSEC_RNDTEST	# enable rndtest support
2265
2266#####################################################################
2267
2268
2269#
2270# Embedded system options:
2271#
2272# An embedded system might want to run something other than init.
2273options 	INIT_PATH=/sbin/init:/stand/sysinstall
2274
2275# Debug options
2276options 	BUS_DEBUG	# enable newbus debugging
2277options 	DEBUG_VFS_LOCKS	# enable vfs lock debugging
2278options 	SOCKBUF_DEBUG	# enable sockbuf last record/mb tail checking
2279
2280#####################################################################
2281# SYSV IPC KERNEL PARAMETERS
2282#
2283# Maximum number of entries in a semaphore map.
2284options 	SEMMAP=31
2285
2286# Maximum number of System V semaphores that can be used on the system at
2287# one time.
2288options 	SEMMNI=11
2289
2290# Total number of semaphores system wide
2291options 	SEMMNS=61
2292
2293# Total number of undo structures in system
2294options 	SEMMNU=31
2295
2296# Maximum number of System V semaphores that can be used by a single process
2297# at one time.
2298options 	SEMMSL=61
2299
2300# Maximum number of operations that can be outstanding on a single System V
2301# semaphore at one time.
2302options 	SEMOPM=101
2303
2304# Maximum number of undo operations that can be outstanding on a single
2305# System V semaphore at one time.
2306options 	SEMUME=11
2307
2308# Maximum number of shared memory pages system wide.
2309options 	SHMALL=1025
2310
2311# Maximum size, in bytes, of a single System V shared memory region.
2312options 	SHMMAX=(SHMMAXPGS*PAGE_SIZE+1)
2313options 	SHMMAXPGS=1025
2314
2315# Minimum size, in bytes, of a single System V shared memory region.
2316options 	SHMMIN=2
2317
2318# Maximum number of shared memory regions that can be used on the system
2319# at one time.
2320options 	SHMMNI=33
2321
2322# Maximum number of System V shared memory regions that can be attached to
2323# a single process at one time.
2324options 	SHMSEG=9
2325
2326# Set the amount of time (in seconds) the system will wait before
2327# rebooting automatically when a kernel panic occurs.  If set to (-1),
2328# the system will wait indefinitely until a key is pressed on the
2329# console.
2330options 	PANIC_REBOOT_WAIT_TIME=16
2331
2332# Attempt to bypass the buffer cache and put data directly into the
2333# userland buffer for read operation when O_DIRECT flag is set on the
2334# file.  Both offset and length of the read operation must be
2335# multiples of the physical media sector size.
2336#
2337#options 	DIRECTIO
2338
2339# Specify a lower limit for the number of swap I/O buffers.  They are
2340# (among other things) used when bypassing the buffer cache due to
2341# DIRECTIO kernel option enabled and O_DIRECT flag set on file.
2342#
2343#options 	NSWBUF_MIN=120
2344
2345#####################################################################
2346
2347# More undocumented options for linting.
2348# Note that documenting these are not considered an affront.
2349
2350options 	CAM_DEBUG_DELAY
2351
2352# VFS cluster debugging.
2353options 	CLUSTERDEBUG
2354
2355options 	DEBUG
2356
2357# Kernel filelock debugging.
2358options 	LOCKF_DEBUG
2359
2360# System V compatible message queues
2361# Please note that the values provided here are used to test kernel
2362# building.  The defaults in the sources provide almost the same numbers.
2363# MSGSSZ must be a power of 2 between 8 and 1024.
2364options 	MSGMNB=2049	# Max number of chars in queue
2365options 	MSGMNI=41	# Max number of message queue identifiers
2366options 	MSGSEG=2049	# Max number of message segments
2367options 	MSGSSZ=16	# Size of a message segment
2368options 	MSGTQL=41	# Max number of messages in system
2369
2370options 	NBUF=512	# Number of buffer headers
2371
2372options 	NMBCLUSTERS=1024	# Number of mbuf clusters
2373
2374options 	SCSI_NCR_DEBUG
2375options 	SCSI_NCR_MAX_SYNC=10000
2376options 	SCSI_NCR_MAX_WIDE=1
2377options 	SCSI_NCR_MYADDR=7
2378
2379options 	SC_DEBUG_LEVEL=5	# Syscons debug level
2380options 	SC_RENDER_DEBUG	# syscons rendering debugging
2381
2382options 	SHOW_BUSYBUFS	# List buffers that prevent root unmount
2383options 	SLIP_IFF_OPTS
2384options 	VFS_BIO_DEBUG	# VFS buffer I/O debugging
2385
2386options 	KSTACK_MAX_PAGES=32 # Maximum pages to give the kernel stack
2387
2388# Yet more undocumented options for linting.
2389options 	AAC_DEBUG
2390# Broken:
2391##options 	ASR_MEASURE_PERFORMANCE
2392# BKTR_ALLOC_PAGES has no effect except to cause warnings, and
2393# BROOKTREE_ALLOC_PAGES hasn't actually been superseded by it, since the
2394# driver still mostly spells this option BROOKTREE_ALLOC_PAGES.
2395##options 	BKTR_ALLOC_PAGES=(217*4+1)
2396options 	BROOKTREE_ALLOC_PAGES=(217*4+1)
2397options 	MAXFILES=999
2398options 	NDEVFSINO=1025
2399options 	NDEVFSOVERFLOW=32769
2400
2401# Yet more undocumented options for linting.
2402options 	VGA_DEBUG
2403