xref: /freebsd/sys/conf/NOTES (revision c4f02a891fe62fe1277c89859922804ea2c27bcd)
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 'option' 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 'option' 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
456
457device		mn	# Munich32x/Falc54 Nx64kbit/sec cards.
458device		lmc	# tulip based LanMedia WAN cards
459device		musycc	# LMC/SBE LMC1504 quad T1/E1
460
461#
462# Network interfaces:
463#  The `loop' device is MANDATORY when networking is enabled.
464#  The `ether' device provides generic code to handle
465#  Ethernets; it is MANDATORY when an Ethernet device driver is
466#  configured or token-ring is enabled.
467#  The `wlan' device provides generic code to support 802.11
468#  drivers, including host AP mode; it is MANDATORY for the wi
469#  driver and will eventually be required by all 802.11 drivers.
470#  The `fddi' device provides generic code to support FDDI.
471#  The `arcnet' device provides generic code to support Arcnet.
472#  The `sppp' device serves a similar role for certain types
473#  of synchronous PPP links (like `cx', `ar').
474#  The `sl' device implements the Serial Line IP (SLIP) service.
475#  The `ppp' device implements the Point-to-Point Protocol.
476#  The `bpf' device enables the Berkeley Packet Filter.  Be
477#  aware of the legal and administrative consequences of enabling this
478#  option.  The number of devices determines the maximum number of
479#  simultaneous BPF clients programs runnable.
480#  The `disc' device implements a minimal network interface,
481#  which throws away all packets sent and never receives any.  It is
482#  included for testing purposes.  This shows up as the `ds' interface.
483#  The `tap' device is a pty-like virtual Ethernet interface
484#  The `tun' device implements (user-)ppp and nos-tun
485#  The `gif' device implements IPv6 over IP4 tunneling,
486#  IPv4 over IPv6 tunneling, IPv4 over IPv4 tunneling and
487#  IPv6 over IPv6 tunneling.
488#  The `gre' device implements two types of IP4 over IP4 tunneling:
489#  GRE and MOBILE, as specified in the RFC1701 and RFC2004.
490#  The XBONEHACK option allows the same pair of addresses to be configured on
491#  multiple gif interfaces.
492#  The `faith' device captures packets sent to it and diverts them
493#  to the IPv4/IPv6 translation daemon.
494#  The `stf' device implements 6to4 encapsulation.
495#  The `ef' device provides support for multiple ethernet frame types
496#  specified via ETHER_* options. See ef(4) for details.
497#
498# The PPP_BSDCOMP option enables support for compress(1) style entire
499# packet compression, the PPP_DEFLATE is for zlib/gzip style compression.
500# PPP_FILTER enables code for filtering the ppp data stream and selecting
501# events for resetting the demand dial activity timer - requires bpf.
502# See pppd(8) for more details.
503#
504device		ether			#Generic Ethernet
505device		vlan			#VLAN support
506device		wlan			#802.11 support
507device		token			#Generic TokenRing
508device		fddi			#Generic FDDI
509device		arcnet			#Generic Arcnet
510device		sppp			#Generic Synchronous PPP
511device		loop			#Network loopback device
512device		bpf			#Berkeley packet filter
513device		disc			#Discard device (ds0, ds1, etc)
514device		tap			#Virtual Ethernet driver
515device		tun			#Tunnel driver (ppp(8), nos-tun(8))
516device		sl			#Serial Line IP
517device		gre			#IP over IP tunneling
518device		ppp			#Point-to-point protocol
519options 	PPP_BSDCOMP		#PPP BSD-compress support
520options 	PPP_DEFLATE		#PPP zlib/deflate/gzip support
521options 	PPP_FILTER		#enable bpf filtering (needs bpf)
522
523device		ef			# Multiple ethernet frames support
524options 	ETHER_II		# enable Ethernet_II frame
525options 	ETHER_8023		# enable Ethernet_802.3 (Novell) frame
526options 	ETHER_8022		# enable Ethernet_802.2 frame
527options 	ETHER_SNAP		# enable Ethernet_802.2/SNAP frame
528
529# for IPv6
530device		gif			#IPv6 and IPv4 tunneling
531options 	XBONEHACK
532device		faith			#for IPv6 and IPv4 translation
533device		stf			#6to4 IPv6 over IPv4 encapsulation
534
535#
536# Internet family options:
537#
538# MROUTING enables the kernel multicast packet forwarder, which works
539# with mrouted(8).
540#
541# PIM enables Protocol Independent Multicast in the kernel.
542# Requires MROUTING enabled.
543#
544# IPFIREWALL enables support for IP firewall construction, in
545# conjunction with the `ipfw' program.  IPFIREWALL_VERBOSE sends
546# logged packets to the system logger.  IPFIREWALL_VERBOSE_LIMIT
547# limits the number of times a matching entry can be logged.
548#
549# WARNING:  IPFIREWALL defaults to a policy of "deny ip from any to any"
550# and if you do not add other rules during startup to allow access,
551# YOU WILL LOCK YOURSELF OUT.  It is suggested that you set firewall_type=open
552# in /etc/rc.conf when first enabling this feature, then refining the
553# firewall rules in /etc/rc.firewall after you've tested that the new kernel
554# feature works properly.
555#
556# IPFIREWALL_DEFAULT_TO_ACCEPT causes the default rule (at boot) to
557# allow everything.  Use with care, if a cracker can crash your
558# firewall machine, they can get to your protected machines.  However,
559# if you are using it as an as-needed filter for specific problems as
560# they arise, then this may be for you.  Changing the default to 'allow'
561# means that you won't get stuck if the kernel and /sbin/ipfw binary get
562# out of sync.
563#
564# IPDIVERT enables the divert IP sockets, used by ``ipfw divert''
565#
566# IPSTEALTH enables code to support stealth forwarding (i.e., forwarding
567# packets without touching the ttl).  This can be useful to hide firewalls
568# from traceroute and similar tools.
569#
570# PFIL_HOOKS enables an abtraction layer which is meant to be used in
571# network code where filtering is required.  See the pfil(9) man page.
572# This option is required by the IPFILTER option.
573#
574# TCPDEBUG enables code which keeps traces of the TCP state machine
575# for sockets with the SO_DEBUG option set, which can then be examined
576# using the trpt(8) utility.
577#
578options 	MROUTING		# Multicast routing
579options 	PIM			# Protocol Independent Multicast
580options 	IPFIREWALL		#firewall
581options 	IPFIREWALL_VERBOSE	#enable logging to syslogd(8)
582options 	IPFIREWALL_FORWARD	#enable transparent proxy support
583options 	IPFIREWALL_VERBOSE_LIMIT=100	#limit verbosity
584options 	IPFIREWALL_DEFAULT_TO_ACCEPT	#allow everything by default
585options 	IPV6FIREWALL		#firewall for IPv6
586options 	IPV6FIREWALL_VERBOSE
587options 	IPV6FIREWALL_VERBOSE_LIMIT=100
588options 	IPV6FIREWALL_DEFAULT_TO_ACCEPT
589options 	IPDIVERT		#divert sockets
590options 	IPFILTER		#ipfilter support
591options 	IPFILTER_LOG		#ipfilter logging
592options 	IPFILTER_DEFAULT_BLOCK	#block all packets by default
593options 	IPSTEALTH		#support for stealth forwarding
594options 	PFIL_HOOKS		#required by IPFILTER
595options 	TCPDEBUG
596
597# The MBUF_STRESS_TEST option enables options which create
598# various random failures / extreme cases related to mbuf
599# functions.  See the mbuf(9) manpage for a list of available
600# test cases.
601options		MBUF_STRESS_TEST
602
603# RANDOM_IP_ID causes the ID field in IP packets to be randomized
604# instead of incremented by 1 with each packet generated.  This
605# option closes a minor information leak which allows remote
606# observers to determine the rate of packet generation on the
607# machine by watching the counter.
608options 	RANDOM_IP_ID
609
610# Statically Link in accept filters
611options 	ACCEPT_FILTER_DATA
612options 	ACCEPT_FILTER_HTTP
613
614# TCP_DROP_SYNFIN adds support for ignoring TCP packets with SYN+FIN. This
615# prevents nmap et al. from identifying the TCP/IP stack, but breaks support
616# for RFC1644 extensions and is not recommended for web servers.
617#
618options 	TCP_DROP_SYNFIN		#drop TCP packets with SYN+FIN
619
620# DUMMYNET enables the "dummynet" bandwidth limiter. You need
621# IPFIREWALL as well. See the dummynet(4) and ipfw(8) manpages for more info.
622# When you run DUMMYNET it is advisable to also have "options HZ=1000"
623# to achieve a smoother scheduling of the traffic.
624#
625# BRIDGE enables bridging between ethernet cards -- see bridge(4).
626# You can use IPFIREWALL and DUMMYNET together with bridging.
627#
628options 	DUMMYNET
629options 	BRIDGE
630
631# Zero copy sockets support.  This enables "zero copy" for sending and
632# receving data via a socket.  The send side works for any type of NIC,
633# the receive side only works for NICs that support MTUs greater than the
634# page size of your architecture and that support header splitting.  See
635# zero_copy(9) for more details.
636options 	ZERO_COPY_SOCKETS
637
638#
639# ATM (HARP version) options
640#
641# ATM_CORE includes the base ATM functionality code.  This must be included
642#	for ATM support.
643#
644# ATM_IP includes support for running IP over ATM.
645#
646# At least one (and usually only one) of the following signalling managers
647# must be included (note that all signalling managers include PVC support):
648# ATM_SIGPVC includes support for the PVC-only signalling manager `sigpvc'.
649# ATM_SPANS includes support for the `spans' signalling manager, which runs
650#	the FORE Systems's proprietary SPANS signalling protocol.
651# ATM_UNI includes support for the `uni30' and `uni31' signalling managers,
652#	which run the ATM Forum UNI 3.x signalling protocols.
653#
654# The `hea' driver provides support for the Efficient Networks, Inc.
655# ENI-155p ATM PCI Adapter.
656#
657# The `hfa' driver provides support for the FORE Systems, Inc.
658# PCA-200E ATM PCI Adapter.
659#
660# The `harp' pseudo-driver makes all NATM interface drivers available to HARP.
661#
662options 	ATM_CORE		#core ATM protocol family
663options 	ATM_IP			#IP over ATM support
664options 	ATM_SIGPVC		#SIGPVC signalling manager
665options 	ATM_SPANS		#SPANS signalling manager
666options 	ATM_UNI			#UNI signalling manager
667
668device		hea			#Efficient ENI-155p ATM PCI
669device		hfa			#FORE PCA-200E ATM PCI
670device		harp			#Pseudo-interface for NATM
671
672
673#####################################################################
674# FILESYSTEM OPTIONS
675
676#
677# Only the root, /usr, and /tmp filesystems need be statically
678# compiled; everything else will be automatically loaded at mount
679# time.  (Exception: the UFS family--- FFS --- cannot
680# currently be demand-loaded.)  Some people still prefer to statically
681# compile other filesystems as well.
682#
683# NB: The NULL, PORTAL, UMAP and UNION filesystems are known to be
684# buggy, and WILL panic your system if you attempt to do anything with
685# them.  They are included here as an incentive for some enterprising
686# soul to sit down and fix them.
687#
688
689# One of these is mandatory:
690options 	FFS			#Fast filesystem
691options 	NFSCLIENT		#Network File System
692
693# The rest are optional:
694options 	CD9660			#ISO 9660 filesystem
695options 	FDESCFS			#File descriptor filesystem
696options 	HPFS			#OS/2 File system
697options 	MSDOSFS			#MS DOS File System (FAT, FAT32)
698options 	NFSSERVER		#Network File System
699options 	NTFS			#NT File System
700options 	NULLFS			#NULL filesystem
701#options 	NWFS			#NetWare filesystem
702options 	PORTALFS		#Portal filesystem
703options 	PROCFS			#Process filesystem (requires PSEUDOFS)
704options 	PSEUDOFS		#Pseudo-filesystem framework
705options 	SMBFS			#SMB/CIFS filesystem
706options 	UDF			#Universal Disk Format
707options 	UMAPFS			#UID map filesystem
708options 	UNIONFS			#Union filesystem
709# The xFS_ROOT options REQUIRE the associated ``options xFS''
710options 	NFS_ROOT		#NFS usable as root device
711
712# Soft updates is a technique for improving filesystem speed and
713# making abrupt shutdown less risky.
714#
715options 	SOFTUPDATES
716
717# Extended attributes allow additional data to be associated with files,
718# and is used for ACLs, Capabilities, and MAC labels.
719# See src/sys/ufs/ufs/README.extattr for more information.
720options 	UFS_EXTATTR
721options 	UFS_EXTATTR_AUTOSTART
722
723# Access Control List support for UFS filesystems.  The current ACL
724# implementation requires extended attribute support, UFS_EXTATTR,
725# for the underlying filesystem.
726# See src/sys/ufs/ufs/README.acls for more information.
727options 	UFS_ACL
728
729# Directory hashing improves the speed of operations on very large
730# directories at the expense of some memory.
731options 	UFS_DIRHASH
732
733# Make space in the kernel for a root filesystem on a md device.
734# Define to the number of kilobytes to reserve for the filesystem.
735options 	MD_ROOT_SIZE=10
736
737# Make the md device a potential root device, either with preloaded
738# images of type mfs_root or md_root.
739options 	MD_ROOT
740
741# Disk quotas are supported when this option is enabled.
742options 	QUOTA			#enable disk quotas
743
744# If you are running a machine just as a fileserver for PC and MAC
745# users, using SAMBA or Netatalk, you may consider setting this option
746# and keeping all those users' directories on a filesystem that is
747# mounted with the suiddir option. This gives new files the same
748# ownership as the directory (similar to group). It's a security hole
749# if you let these users run programs, so confine it to file-servers
750# (but it'll save you lots of headaches in those cases). Root owned
751# directories are exempt and X bits are cleared. The suid bit must be
752# set on the directory as well; see chmod(1) PC owners can't see/set
753# ownerships so they keep getting their toes trodden on. This saves
754# you all the support calls as the filesystem it's used on will act as
755# they expect: "It's my dir so it must be my file".
756#
757options 	SUIDDIR
758
759# NFS options:
760options 	NFS_MINATTRTIMO=3	# VREG attrib cache timeout in sec
761options 	NFS_MAXATTRTIMO=60
762options 	NFS_MINDIRATTRTIMO=30	# VDIR attrib cache timeout in sec
763options 	NFS_MAXDIRATTRTIMO=60
764options 	NFS_GATHERDELAY=10	# Default write gather delay (msec)
765options 	NFS_WDELAYHASHSIZ=16	# and with this
766options 	NFS_DEBUG		# Enable NFS Debugging
767
768# Coda stuff:
769options 	CODA			#CODA filesystem.
770device		vcoda	4		#coda minicache <-> venus comm.
771# Use the old Coda 5.x venus<->kernel interface instead of the new
772# realms-aware 6.x protocol.
773#options 	CODA_COMPAT_5
774
775#
776# Add support for the EXT2FS filesystem of Linux fame.  Be a bit
777# careful with this - the ext2fs code has a tendency to lag behind
778# changes and not be exercised very much, so mounting read/write could
779# be dangerous (and even mounting read only could result in panics.)
780#
781options 	EXT2FS
782
783# Use real implementations of the aio_* system calls.  There are numerous
784# stability and security issues in the current aio code that make it
785# unsuitable for inclusion on machines with untrusted local users.
786options 	VFS_AIO
787
788# Cryptographically secure random number generator; /dev/[u]random
789device		random
790
791# Optional character code conversion support with LIBICONV.
792# Each option requires their base file system and LIBICONV.
793options		CD9660_ICONV
794options		MSDOSFS_ICONV
795options		NTFS_ICONV
796
797
798#####################################################################
799# POSIX P1003.1B
800
801# Real time extensions added in the 1993 Posix
802# _KPOSIX_PRIORITY_SCHEDULING: Build in _POSIX_PRIORITY_SCHEDULING
803
804options 	_KPOSIX_PRIORITY_SCHEDULING
805# p1003_1b_semaphores are very experimental,
806# user should be ready to assist in debugging if problems arise.
807options		P1003_1B_SEMAPHORES
808
809
810#####################################################################
811# SECURITY POLICY PARAMETERS
812
813# Support for Mandatory Access Control (MAC):
814options 	MAC
815options 	MAC_BIBA
816options 	MAC_BSDEXTENDED
817options 	MAC_DEBUG
818options 	MAC_IFOFF
819options 	MAC_LOMAC
820options 	MAC_MLS
821options 	MAC_NONE
822options 	MAC_PARTITION
823options 	MAC_PORTACL
824options 	MAC_SEEOTHERUIDS
825options 	MAC_STUB
826options 	MAC_TEST
827
828
829#####################################################################
830# CLOCK OPTIONS
831
832# The granularity of operation is controlled by the kernel option HZ whose
833# default value (100) means a granularity of 10ms (1s/HZ).
834# Some subsystems, such as DUMMYNET, might benefit from a smaller
835# granularity such as 1ms or less, for a smoother scheduling of packets.
836# Consider, however, that reducing the granularity too much might
837# cause excessive overhead in clock interrupt processing,
838# potentially causing ticks to be missed and thus actually reducing
839# the accuracy of operation.
840
841options 	HZ=100
842
843# If you see the "calcru: negative time of %ld usec for pid %d (%s)\n"
844# message you probably have some broken sw/hw which disables interrupts
845# for too long.  You can make the system more resistant to this by
846# choosing a high value for NTIMECOUNTER.  The default is 5, there
847# is no upper limit but more than a couple of hundred are not productive.
848
849options 	NTIMECOUNTER=20
850
851# Enable support for the kernel PLL to use an external PPS signal,
852# under supervision of [x]ntpd(8)
853# More info in ntpd documentation: http://www.eecis.udel.edu/~ntp
854
855options 	PPS_SYNC
856
857
858#####################################################################
859# SCSI DEVICES
860
861# SCSI DEVICE CONFIGURATION
862
863# The SCSI subsystem consists of the `base' SCSI code, a number of
864# high-level SCSI device `type' drivers, and the low-level host-adapter
865# device drivers.  The host adapters are listed in the ISA and PCI
866# device configuration sections below.
867#
868# It is possible to wire down your SCSI devices so that a given bus,
869# target, and LUN always come on line as the same device unit.  In
870# earlier versions the unit numbers were assigned in the order that
871# the devices were probed on the SCSI bus.  This means that if you
872# removed a disk drive, you may have had to rewrite your /etc/fstab
873# file, and also that you had to be careful when adding a new disk
874# as it may have been probed earlier and moved your device configuration
875# around.  (See also option GEOM_VOL for a different solution to this
876# problem.)
877
878# This old behavior is maintained as the default behavior.  The unit
879# assignment begins with the first non-wired down unit for a device
880# type.  For example, if you wire a disk as "da3" then the first
881# non-wired disk will be assigned da4.
882
883# The syntax for wiring down devices is:
884
885hint.scbus.0.at="ahc0"
886hint.scbus.1.at="ahc1"
887hint.scbus.1.bus="0"
888hint.scbus.3.at="ahc2"
889hint.scbus.3.bus="0"
890hint.scbus.2.at="ahc2"
891hint.scbus.2.bus="1"
892hint.da.0.at="scbus0"
893hint.da.0.target="0"
894hint.da.0.unit="0"
895hint.da.1.at="scbus3"
896hint.da.1.target="1"
897hint.da.2.at="scbus2"
898hint.da.2.target="3"
899hint.sa.1.at="scbus1"
900hint.sa.1.target="6"
901
902# "units" (SCSI logical unit number) that are not specified are
903# treated as if specified as LUN 0.
904
905# All SCSI devices allocate as many units as are required.
906
907# The ch driver drives SCSI Media Changer ("jukebox") devices.
908#
909# The da driver drives SCSI Direct Access ("disk") and Optical Media
910# ("WORM") devices.
911#
912# The sa driver drives SCSI Sequential Access ("tape") devices.
913#
914# The cd driver drives SCSI Read Only Direct Access ("cd") devices.
915#
916# The ses driver drives SCSI Envinronment Services ("ses") and
917# SAF-TE ("SCSI Accessable Fault-Tolerant Enclosure") devices.
918#
919# The pt driver drives SCSI Processor devices.
920#
921#
922# Target Mode support is provided here but also requires that a SIM
923# (SCSI Host Adapter Driver) provide support as well.
924#
925# The targ driver provides target mode support as a Processor type device.
926# It exists to give the minimal context necessary to respond to Inquiry
927# commands. There is a sample user application that shows how the rest
928# of the command support might be done in /usr/share/examples/scsi_target.
929#
930# The targbh driver provides target mode support and exists to respond
931# to incoming commands that do not otherwise have a logical unit assigned
932# to them.
933#
934# The "unknown" device (uk? in pre-2.0.5) is now part of the base SCSI
935# configuration as the "pass" driver.
936
937device		scbus		#base SCSI code
938device		ch		#SCSI media changers
939device		da		#SCSI direct access devices (aka disks)
940device		sa		#SCSI tapes
941device		cd		#SCSI CD-ROMs
942device		ses		#SCSI Environmental Services (and SAF-TE)
943device		pt		#SCSI processor
944device		targ		#SCSI Target Mode Code
945device		targbh		#SCSI Target Mode Blackhole Device
946device		pass		#CAM passthrough driver
947
948# CAM OPTIONS:
949# debugging options:
950# -- NOTE --  If you specify one of the bus/target/lun options, you must
951#             specify them all!
952# CAMDEBUG: When defined enables debugging macros
953# CAM_DEBUG_BUS:  Debug the given bus.  Use -1 to debug all busses.
954# CAM_DEBUG_TARGET:  Debug the given target.  Use -1 to debug all targets.
955# CAM_DEBUG_LUN:  Debug the given lun.  Use -1 to debug all luns.
956# CAM_DEBUG_FLAGS:  OR together CAM_DEBUG_INFO, CAM_DEBUG_TRACE,
957#                   CAM_DEBUG_SUBTRACE, and CAM_DEBUG_CDB
958#
959# CAM_MAX_HIGHPOWER: Maximum number of concurrent high power (start unit) cmds
960# CAM_NEW_TRAN_CODE: this is the new transport layer code that will be switched
961#			to soon
962# SCSI_NO_SENSE_STRINGS: When defined disables sense descriptions
963# SCSI_NO_OP_STRINGS: When defined disables opcode descriptions
964# SCSI_DELAY: The number of MILLISECONDS to freeze the SIM (scsi adapter)
965#             queue after a bus reset, and the number of milliseconds to
966#             freeze the device queue after a bus device reset.  This
967#             can be changed at boot and runtime with the
968#             kern.cam.scsi_delay tunable/sysctl.
969options 	CAMDEBUG
970options 	CAM_DEBUG_BUS=-1
971options 	CAM_DEBUG_TARGET=-1
972options 	CAM_DEBUG_LUN=-1
973options 	CAM_DEBUG_FLAGS=(CAM_DEBUG_INFO|CAM_DEBUG_TRACE|CAM_DEBUG_CDB)
974options 	CAM_MAX_HIGHPOWER=4
975options 	SCSI_NO_SENSE_STRINGS
976options 	SCSI_NO_OP_STRINGS
977options 	SCSI_DELAY=8000	# Be pessimistic about Joe SCSI device
978
979# Options for the CAM SCSI disk driver:
980# DA_OLD_QUIRKS: Restore old USB and firewire quirks that have been
981#		 deprecated.  Please also email scsi@freebsd.org if you
982#		 have a device that needs this option.
983options		DA_OLD_QUIRKS
984
985# Options for the CAM CDROM driver:
986# CHANGER_MIN_BUSY_SECONDS: Guaranteed minimum time quantum for a changer LUN
987# CHANGER_MAX_BUSY_SECONDS: Maximum time quantum per changer LUN, only
988#                           enforced if there is I/O waiting for another LUN
989# The compiled in defaults for these variables are 2 and 10 seconds,
990# respectively.
991#
992# These can also be changed on the fly with the following sysctl variables:
993# kern.cam.cd.changer.min_busy_seconds
994# kern.cam.cd.changer.max_busy_seconds
995#
996options 	CHANGER_MIN_BUSY_SECONDS=2
997options 	CHANGER_MAX_BUSY_SECONDS=10
998
999# Options for the CAM sequential access driver:
1000# SA_IO_TIMEOUT: Timeout for read/write/wfm  operations, in minutes
1001# SA_SPACE_TIMEOUT: Timeout for space operations, in minutes
1002# SA_REWIND_TIMEOUT: Timeout for rewind operations, in minutes
1003# SA_ERASE_TIMEOUT: Timeout for erase operations, in minutes
1004# SA_1FM_AT_EOD: Default to model which only has a default one filemark at EOT.
1005options 	SA_IO_TIMEOUT=4
1006options 	SA_SPACE_TIMEOUT=60
1007options 	SA_REWIND_TIMEOUT=(2*60)
1008options 	SA_ERASE_TIMEOUT=(4*60)
1009options 	SA_1FM_AT_EOD
1010
1011# Optional timeout for the CAM processor target (pt) device
1012# This is specified in seconds.  The default is 60 seconds.
1013options 	SCSI_PT_DEFAULT_TIMEOUT=60
1014
1015# Optional enable of doing SES passthrough on other devices (e.g., disks)
1016#
1017# Normally disabled because a lot of newer SCSI disks report themselves
1018# as having SES capabilities, but this can then clot up attempts to build
1019# build a topology with the SES device that's on the box these drives
1020# are in....
1021options 	SES_ENABLE_PASSTHROUGH
1022
1023
1024#####################################################################
1025# MISCELLANEOUS DEVICES AND OPTIONS
1026
1027# The `pty' device usually turns out to be ``effectively mandatory'',
1028# as it is required for `telnetd', `rlogind', `screen', `emacs', and
1029# `xterm', among others.
1030
1031device		pty		#Pseudo ttys
1032device		nmdm		#back-to-back tty devices
1033device		md		#Memory/malloc disk
1034device		snp		#Snoop device - to look at pty/vty/etc..
1035device		ccd		#Concatenated disk driver
1036
1037# Configuring Vinum into the kernel is not necessary, since the kld
1038# module gets started automatically when vinum(8) starts.  This
1039# device is also untested.  Use at your own risk.
1040#
1041# The option VINUMDEBUG must match the value set in CFLAGS
1042# in src/sbin/vinum/Makefile.  Failure to do so will result in
1043# the following message from vinum(8):
1044#
1045# Can't get vinum config: Invalid argument
1046#
1047# see vinum(4) for more reasons not to use these options.
1048device		vinum		#Vinum concat/mirror/raid driver
1049options 	VINUMDEBUG	#enable Vinum debugging hooks
1050
1051# RAIDframe device.  RAID_AUTOCONFIG allows RAIDframe to search all of the
1052# disk devices in the system looking for components that it recognizes (already
1053# configured once before) and auto-configured them into arrays.
1054device		raidframe
1055options		RAID_AUTOCONFIG
1056
1057# Kernel side iconv library
1058options 	LIBICONV
1059
1060# Size of the kernel message buffer.  Should be N * pagesize.
1061options 	MSGBUF_SIZE=40960
1062
1063# Maximum size of a tty or pty input buffer.
1064options 	TTYHOG=8193
1065
1066
1067#####################################################################
1068# HARDWARE DEVICE CONFIGURATION
1069
1070# For ISA the required hints are listed.
1071# EISA, MCA, PCI and pccard are self identifying buses, so no hints
1072# are needed.
1073
1074#
1075# Mandatory devices:
1076#
1077
1078# The keyboard controller; it controls the keyboard and the PS/2 mouse.
1079device		atkbdc
1080hint.atkbdc.0.at="isa"
1081hint.atkbdc.0.port="0x060"
1082
1083# The AT keyboard
1084device		atkbd
1085hint.atkbd.0.at="atkbdc"
1086hint.atkbd.0.irq="1"
1087
1088# Options for atkbd:
1089options 	ATKBD_DFLT_KEYMAP	# specify the built-in keymap
1090makeoptions	ATKBD_DFLT_KEYMAP=jp.106
1091
1092# These options are valid for other keyboard drivers as well.
1093options 	KBD_DISABLE_KEYMAP_LOAD	# refuse to load a keymap
1094options 	KBD_INSTALL_CDEV	# install a CDEV entry in /dev
1095
1096# `flags' for atkbd:
1097#       0x01    Force detection of keyboard, else we always assume a keyboard
1098#       0x02    Don't reset keyboard, useful for some newer ThinkPads
1099#	0x03	Force detection and avoid reset, might help with certain
1100#		dockingstations
1101#       0x04    Old-style (XT) keyboard support, useful for older ThinkPads
1102
1103# PS/2 mouse
1104device		psm
1105hint.psm.0.at="atkbdc"
1106hint.psm.0.irq="12"
1107
1108# Options for psm:
1109options 	PSM_HOOKRESUME		#hook the system resume event, useful
1110					#for some laptops
1111options 	PSM_RESETAFTERSUSPEND	#reset the device at the resume event
1112
1113# Video card driver for VGA adapters.
1114device		vga
1115hint.vga.0.at="isa"
1116
1117# Options for vga:
1118# Try the following option if the mouse pointer is not drawn correctly
1119# or font does not seem to be loaded properly.  May cause flicker on
1120# some systems.
1121options 	VGA_ALT_SEQACCESS
1122
1123# If you can dispense with some vga driver features, you may want to
1124# use the following options to save some memory.
1125#options 	VGA_NO_FONT_LOADING	# don't save/load font
1126#options 	VGA_NO_MODE_CHANGE	# don't change video modes
1127
1128# Older video cards may require this option for proper operation.
1129options 	VGA_SLOW_IOACCESS	# do byte-wide i/o's to TS and GDC regs
1130
1131# The following option probably won't work with the LCD displays.
1132options 	VGA_WIDTH90		# support 90 column modes
1133
1134options 	FB_DEBUG		# Frame buffer debugging
1135
1136device		splash			# Splash screen and screen saver support
1137
1138# Various screen savers.
1139device		blank_saver
1140device		daemon_saver
1141device		fade_saver
1142device		fire_saver
1143device		green_saver
1144device		logo_saver
1145device		rain_saver
1146device		star_saver
1147device		warp_saver
1148
1149# The syscons console driver (sco color console compatible).
1150device		sc
1151hint.sc.0.at="isa"
1152options 	MAXCONS=16		# number of virtual consoles
1153options 	SC_ALT_MOUSE_IMAGE	# simplified mouse cursor in text mode
1154options 	SC_DFLT_FONT		# compile font in
1155makeoptions	SC_DFLT_FONT=cp850
1156options 	SC_DISABLE_DDBKEY	# disable `debug' key
1157options 	SC_DISABLE_REBOOT	# disable reboot key sequence
1158options 	SC_HISTORY_SIZE=200	# number of history buffer lines
1159options 	SC_MOUSE_CHAR=0x3	# char code for text mode mouse cursor
1160options 	SC_PIXEL_MODE		# add support for the raster text mode
1161
1162# The following options will let you change the default colors of syscons.
1163options 	SC_NORM_ATTR=(FG_GREEN|BG_BLACK)
1164options 	SC_NORM_REV_ATTR=(FG_YELLOW|BG_GREEN)
1165options 	SC_KERNEL_CONS_ATTR=(FG_RED|BG_BLACK)
1166options 	SC_KERNEL_CONS_REV_ATTR=(FG_BLACK|BG_RED)
1167
1168# The following options will let you change the default behaviour of
1169# cut-n-paste feature
1170options 	SC_CUT_SPACES2TABS	# convert leading spaces into tabs
1171options 	SC_CUT_SEPCHARS=\"x09\"	# set of characters that delimit words
1172					# (default is single space - \"x20\")
1173
1174# If you have a two button mouse, you may want to add the following option
1175# to use the right button of the mouse to paste text.
1176options 	SC_TWOBUTTON_MOUSE
1177
1178# You can selectively disable features in syscons.
1179options 	SC_NO_CUTPASTE
1180options 	SC_NO_FONT_LOADING
1181options 	SC_NO_HISTORY
1182options 	SC_NO_SYSMOUSE
1183options 	SC_NO_SUSPEND_VTYSWITCH
1184
1185# `flags' for sc
1186#	0x80	Put the video card in the VESA 800x600 dots, 16 color mode
1187#	0x100	Probe for a keyboard device periodically if one is not present
1188
1189#
1190# Optional devices:
1191#
1192
1193#
1194# SCSI host adapters:
1195#
1196# adv: All Narrow SCSI bus AdvanSys controllers.
1197# adw: Second Generation AdvanSys controllers including the ADV940UW.
1198# aha: Adaptec 154x/1535/1640
1199# ahb: Adaptec 174x EISA controllers
1200# ahc: Adaptec 274x/284x/2910/293x/294x/394x/3950x/3960x/398X/4944/
1201#      19160x/29160x, aic7770/aic78xx
1202# ahd: Adaptec 29320/39320 Controllers.
1203# aic: Adaptec 6260/6360, APA-1460 (PC Card), NEC PC9801-100 (C-BUS)
1204# amd: Support for the AMD 53C974 SCSI host adapter chip as found on devices
1205#      such as the Tekram DC-390(T).
1206# bt:  Most Buslogic controllers: including BT-445, BT-54x, BT-64x, BT-74x,
1207#      BT-75x, BT-946, BT-948, BT-956, BT-958, SDC3211B, SDC3211F, SDC3222F
1208# isp: Qlogic ISP 1020, 1040 and 1040B PCI SCSI host adapters,
1209#      ISP 1240 Dual Ultra SCSI, ISP 1080 and 1280 (Dual) Ultra2,
1210#      ISP 12160 Ultra3 SCSI,
1211#      Qlogic ISP 2100 and ISP 2200 1Gb Fibre Channel host adapters.
1212#      Qlogic ISP 2300 and ISP 2312 2Gb Fibre Channel host adapters.
1213# ispfw: Firmware module for Qlogic host adapters
1214# mpt: LSI-Logic MPT/Fusion 53c1020 or 53c1030 Ultra4
1215#      or FC9x9 Fibre Channel host adapters.
1216# ncr: NCR 53C810, 53C825 self-contained SCSI host adapters.
1217# sym: Symbios/Logic 53C8XX family of PCI-SCSI I/O processors:
1218#      53C810, 53C810A, 53C815, 53C825,  53C825A, 53C860, 53C875,
1219#      53C876, 53C885,  53C895, 53C895A, 53C896,  53C897, 53C1510D,
1220#      53C1010-33, 53C1010-66.
1221# trm: Tekram DC395U/UW/F DC315U adapters.
1222# wds: WD7000
1223
1224#
1225# Note that the order is important in order for Buslogic ISA/EISA cards to be
1226# probed correctly.
1227#
1228device		bt
1229hint.bt.0.at="isa"
1230hint.bt.0.port="0x330"
1231device		adv
1232hint.adv.0.at="isa"
1233device		adw
1234device		aha
1235hint.aha.0.at="isa"
1236device		aic
1237hint.aic.0.at="isa"
1238device		ahb
1239device		ahc
1240device		ahd
1241device		amd
1242device		isp
1243hint.isp.0.disable="1"
1244hint.isp.0.role="3"
1245hint.isp.0.prefer_iomap="1"
1246hint.isp.0.prefer_memmap="1"
1247hint.isp.0.fwload_disable="1"
1248hint.isp.0.ignore_nvram="1"
1249hint.isp.0.fullduplex="1"
1250hint.isp.0.topology="lport"
1251hint.isp.0.topology="nport"
1252hint.isp.0.topology="lport-only"
1253hint.isp.0.topology="nport-only"
1254# we can't get u_int64_t types, nor can we get strings if it's got
1255# a leading 0x, hence this silly dodge.
1256hint.isp.0.portwnn="w50000000aaaa0000"
1257hint.isp.0.nodewnn="w50000000aaaa0001"
1258device		ispfw
1259device		mpt
1260device		ncr
1261device		sym
1262device		trm
1263device		wds
1264hint.wds.0.at="isa"
1265hint.wds.0.port="0x350"
1266hint.wds.0.irq="11"
1267hint.wds.0.drq="6"
1268
1269# The aic7xxx driver will attempt to use memory mapped I/O for all PCI
1270# controllers that have it configured only if this option is set. Unfortunately,
1271# this doesn't work on some motherboards, which prevents it from being the
1272# default.
1273options 	AHC_ALLOW_MEMIO
1274
1275# Dump the contents of the ahc controller configuration PROM.
1276options 	AHC_DUMP_EEPROM
1277
1278# Bitmap of units to enable targetmode operations.
1279options 	AHC_TMODE_ENABLE
1280
1281# Compile in aic79xx debugging code.
1282options 	AHD_DEBUG
1283
1284# Aic79xx driver debugging options.
1285# See the ahd(4) manpage
1286options 	AHD_DEBUG_OPTS=0xFFFFFFFF
1287
1288# Print human-readable register definitions when debugging
1289options 	AHD_REG_PRETTY_PRINT
1290
1291# The adw driver will attempt to use memory mapped I/O for all PCI
1292# controllers that have it configured only if this option is set.
1293options 	ADW_ALLOW_MEMIO
1294
1295# Options used in dev/isp/ (Qlogic SCSI/FC driver).
1296#
1297#	ISP_TARGET_MODE		-	enable target mode operation
1298#
1299options 	ISP_TARGET_MODE=1
1300
1301# Options used in dev/sym/ (Symbios SCSI driver).
1302#options 	SYM_SETUP_LP_PROBE_MAP	#-Low Priority Probe Map (bits)
1303					# Allows the ncr to take precedence
1304					# 1 (1<<0) -> 810a, 860
1305					# 2 (1<<1) -> 825a, 875, 885, 895
1306					# 4 (1<<2) -> 895a, 896, 1510d
1307#options 	SYM_SETUP_SCSI_DIFF	#-HVD support for 825a, 875, 885
1308					# disabled:0 (default), enabled:1
1309#options 	SYM_SETUP_PCI_PARITY	#-PCI parity checking
1310					# disabled:0, enabled:1 (default)
1311#options 	SYM_SETUP_MAX_LUN	#-Number of LUNs supported
1312					# default:8, range:[1..64]
1313
1314# The 'asr' driver provides support for current DPT/Adaptec SCSI RAID
1315# controllers (SmartRAID V and VI and later).
1316# These controllers require the CAM infrastructure.
1317#
1318device		asr
1319
1320# The 'dpt' driver provides support for old DPT controllers (http://www.dpt.com/).
1321# These have hardware RAID-{0,1,5} support, and do multi-initiator I/O.
1322# The DPT controllers are commonly re-licensed under other brand-names -
1323# some controllers by Olivetti, Dec, HP, AT&T, SNI, AST, Alphatronic, NEC and
1324# Compaq are actually DPT controllers.
1325#
1326# See src/sys/dev/dpt for debugging and other subtle options.
1327#   DPT_MEASURE_PERFORMANCE Enables a set of (semi)invasive metrics. Various
1328#                           instruments are enabled.  The tools in
1329#                           /usr/sbin/dpt_* assume these to be enabled.
1330#   DPT_HANDLE_TIMEOUTS     Normally device timeouts are handled by the DPT.
1331#                           If you ant the driver to handle timeouts, enable
1332#                           this option.  If your system is very busy, this
1333#                           option will create more trouble than solve.
1334#   DPT_TIMEOUT_FACTOR      Used to compute the excessive amount of time to
1335#                           wait when timing out with the above option.
1336#  DPT_DEBUG_xxxx           These are controllable from sys/dev/dpt/dpt.h
1337#  DPT_LOST_IRQ             When enabled, will try, once per second, to catch
1338#                           any interrupt that got lost.  Seems to help in some
1339#                           DPT-firmware/Motherboard combinations.  Minimal
1340#                           cost, great benefit.
1341#  DPT_RESET_HBA            Make "reset" actually reset the controller
1342#                           instead of fudging it.  Only enable this if you
1343#			    are 100% certain you need it.
1344
1345device		dpt
1346
1347# DPT options
1348#!CAM# options 	DPT_MEASURE_PERFORMANCE
1349#!CAM# options 	DPT_HANDLE_TIMEOUTS
1350options 	DPT_TIMEOUT_FACTOR=4
1351options 	DPT_LOST_IRQ
1352options 	DPT_RESET_HBA
1353options 	DPT_ALLOW_MEMIO
1354
1355#
1356# Compaq "CISS" RAID controllers (SmartRAID 5* series)
1357# These controllers have a SCSI-like interface, and require the
1358# CAM infrastructure.
1359#
1360device		ciss
1361
1362#
1363# Intel Integrated RAID controllers.
1364# This driver was developed and is maintained by Intel.  Contacts
1365# at Intel for this driver are
1366# "Kannanthanam, Boji T" <boji.t.kannanthanam@intel.com> and
1367# "Leubner, Achim" <achim.leubner@intel.com>.
1368#
1369device		iir
1370
1371#
1372# Mylex AcceleRAID and eXtremeRAID controllers with v6 and later
1373# firmware.  These controllers have a SCSI-like interface, and require
1374# the CAM infrastructure.
1375#
1376device		mly
1377
1378#
1379# Compaq Smart RAID, Mylex DAC960 and AMI MegaRAID controllers.  Only
1380# one entry is needed; the code will find and configure all supported
1381# controllers.
1382#
1383device		ida		# Compaq Smart RAID
1384device		mlx		# Mylex DAC960
1385device		amr		# AMI MegaRAID
1386
1387#
1388# 3ware ATA RAID
1389#
1390device		twe		# 3ware ATA RAID
1391
1392#
1393# The 'ATA' driver supports all ATA and ATAPI devices, including PC Card
1394# devices. You only need one "device ata" for it to find all
1395# PCI and PC Card ATA/ATAPI devices on modern machines.
1396device		ata
1397device		atadisk		# ATA disk drives
1398device		atapicd		# ATAPI CDROM drives
1399device		atapifd		# ATAPI floppy drives
1400device		atapist		# ATAPI tape drives
1401device		atapicam	# emulate ATAPI devices as SCSI ditto via CAM
1402				# needs CAM to be present (scbus & pass)
1403#
1404# For older non-PCI, non-PnPBIOS systems, these are the hints lines to add:
1405hint.ata.0.at="isa"
1406hint.ata.0.port="0x1f0"
1407hint.ata.0.irq="14"
1408hint.ata.1.at="isa"
1409hint.ata.1.port="0x170"
1410hint.ata.1.irq="15"
1411
1412#
1413# The following options are valid on the ATA driver:
1414#
1415# ATA_STATIC_ID:	controller numbering is static ie depends on location
1416#			else the device numbers are dynamically allocated.
1417
1418options 	ATA_STATIC_ID
1419
1420#
1421# Standard floppy disk controllers and floppy tapes, supports
1422# the Y-E DATA External FDD (PC Card)
1423#
1424device		fdc
1425hint.fdc.0.at="isa"
1426hint.fdc.0.port="0x3F0"
1427hint.fdc.0.irq="6"
1428hint.fdc.0.drq="2"
1429#
1430# FDC_DEBUG enables floppy debugging.  Since the debug output is huge, you
1431# gotta turn it actually on by setting the variable fd_debug with DDB,
1432# however.
1433options 	FDC_DEBUG
1434#
1435# Activate this line if you happen to have an Insight floppy tape.
1436# Probing them proved to be dangerous for people with floppy disks only,
1437# so it's "hidden" behind a flag:
1438#hint.fdc.0.flags="1"
1439
1440# Specify floppy devices
1441hint.fd.0.at="fdc0"
1442hint.fd.0.drive="0"
1443hint.fd.1.at="fdc0"
1444hint.fd.1.drive="1"
1445
1446#
1447# sio: serial ports (see sio(4)), including support for various
1448#      PC Card devices, such as Modem and NICs (see etc/defaults/pccard.conf)
1449#
1450device		sio
1451hint.sio.0.at="isa"
1452hint.sio.0.port="0x3F8"
1453hint.sio.0.flags="0x10"
1454hint.sio.0.irq="4"
1455
1456# Options for sio:
1457options 	COM_ESP			# Code for Hayes ESP.
1458options 	COM_MULTIPORT		# Code for some cards with shared IRQs.
1459options 	CONSPEED=115200		# Speed for serial console
1460					# (default 9600).
1461
1462# `flags' specific to sio(4).  See below for flags used by both sio(4) and
1463# uart(4).
1464#	0x20	force this unit to be the console (unless there is another
1465#		higher priority console).  This replaces the COMCONSOLE option.
1466#	0x40	reserve this unit for low level console operations.  Do not
1467#		access the device in any normal way.
1468# PnP `flags'
1469#	0x1	disable probing of this device.  Used to prevent your modem
1470#		from being attached as a PnP modem.
1471# Other flags for sio that aren't documented in the man page.
1472#	0x20000	enable hardware RTS/CTS and larger FIFOs.  Only works for
1473#		ST16650A-compatible UARTs.
1474
1475#
1476# uart: newbusified driver for serial interfaces.  It consolidates the sio(4),
1477#	sab(4) and zs(4) drivers.
1478#
1479device		uart
1480
1481# Options for uart(4)
1482options 	UART_PPS_ON_CTS		# Do time pulse capturing using CTS
1483					# instead of DCD.
1484
1485# The following hint should only be used for pure ISA devices.  It is not
1486# needed otherwise.  Use of hints is strongly discouraged.
1487hint.uart.0.at="isa"
1488
1489# The following 3 hints are used when the UART is a system device (i.e., a
1490# console or debug port), but only on platforms that don't have any other
1491# means to pass the information to the kernel.  The unit number of the hint
1492# is only used to bundle the hints together.  There is no relation to the
1493# unit number of the probed UART.
1494hint.uart.0.port="0x3f8"
1495hint.uart.0.flags="0x10"
1496hint.uart.0.baud="115200"
1497
1498# `flags' for serial drivers that support consoles like sio(4) and uart(4):
1499#	0x10	enable console support for this unit.  Other console flags
1500#		(if applicable) are ignored unless this is set.  Enabling
1501#		console support does not make the unit the preferred console.
1502#		Boot with -h or set boot_serial=YES in the loader.  For sio(4)
1503#		specifically, the 0x20 flag can also be set (see above).
1504#		Currently, at most one unit can have console support; the
1505#		first one (in config file order) with this flag set is
1506#		preferred.  Setting this flag for sio0 gives the old behaviour.
1507#	0x80	use this port for serial line gdb support in ddb.  Also known
1508#		as debug port.
1509#
1510
1511# Options for serial drivers that support consoles:
1512options 	BREAK_TO_DEBUGGER	# A BREAK on a serial console goes to
1513					# ddb, if available.
1514
1515# Solaris implements a new BREAK which is initiated by a character
1516# sequence CR ~ ^b which is similar to a familiar pattern used on
1517# Sun servers by the Remote Console.
1518options 	ALT_BREAK_TO_DEBUGGER
1519
1520# PCI Universal Communications driver
1521# Supports various single and multi port PCI serial cards. Maybe later
1522# also the parallel ports on combination serial/parallel cards. New cards
1523# can be added in src/sys/dev/puc/pucdata.c.
1524#
1525# If the PUC_FASTINTR option is used the driver will try to use fast
1526# interrupts. The card must then be the only user of that interrupt.
1527# Interrupts cannot be shared when using PUC_FASTINTR.
1528device		puc
1529options 	PUC_FASTINTR
1530
1531#
1532# Network interfaces:
1533#
1534# MII bus support is required for some PCI 10/100 ethernet NICs,
1535# namely those which use MII-compliant transceivers or implement
1536# tranceiver control interfaces that operate like an MII. Adding
1537# "device miibus0" to the kernel config pulls in support for
1538# the generic miibus API and all of the PHY drivers, including a
1539# generic one for PHYs that aren't specifically handled by an
1540# individual driver.
1541device		miibus
1542
1543# an:   Aironet 4500/4800 802.11 wireless adapters. Supports the PCMCIA,
1544#       PCI and ISA varieties.
1545# awi:  Support for IEEE 802.11 PC Card devices using the AMD Am79C930 and
1546#       Harris (Intersil) Chipset with PCnetMobile firmware by AMD.
1547# bge:	Support for gigabit ethernet adapters based on the Broadcom
1548#	BCM570x family of controllers, including the 3Com 3c996-T,
1549#	the Netgear GA302T, the SysKonnect SK-9D21 and SK-9D41, and
1550#	the embedded gigE NICs on Dell PowerEdge 2550 servers.
1551# cm:	Arcnet SMC COM90c26 / SMC COM90c56
1552#	(and SMC COM90c66 in '56 compatibility mode) adapters.
1553# cnw:  Xircom CNW/Netware Airsurfer PC Card adapter
1554# cs:   IBM Etherjet and other Crystal Semi CS89x0-based adapters
1555# dc:   Support for PCI fast ethernet adapters based on the DEC/Intel 21143
1556#       and various workalikes including:
1557#       the ADMtek AL981 Comet and AN985 Centaur, the ASIX Electronics
1558#       AX88140A and AX88141, the Davicom DM9100 and DM9102, the Lite-On
1559#       82c168 and 82c169 PNIC, the Lite-On/Macronix LC82C115 PNIC II
1560#       and the Macronix 98713/98713A/98715/98715A/98725 PMAC. This driver
1561#       replaces the old al, ax, dm, pn and mx drivers.  List of brands:
1562#       Digital DE500-BA, Kingston KNE100TX, D-Link DFE-570TX, SOHOware SFA110,
1563#       SVEC PN102-TX, CNet Pro110B, 120A, and 120B, Compex RL100-TX,
1564#       LinkSys LNE100TX, LNE100TX V2.0, Jaton XpressNet, Alfa Inc GFC2204,
1565#       KNE110TX.
1566# de:   Digital Equipment DC21040
1567# em:   Intel Pro/1000 Gigabit Ethernet 82542, 82543, 82544 based adapters.
1568# ep:   3Com 3C509, 3C529, 3C556, 3C562D, 3C563D, 3C572, 3C574X, 3C579, 3C589
1569#       and PC Card devices using these chipsets.
1570# ex:   Intel EtherExpress Pro/10 and other i82595-based adapters,
1571#       Olicom Ethernet PC Card devices.
1572# fe:   Fujitsu MB86960A/MB86965A Ethernet
1573# fea:  DEC DEFEA EISA FDDI adapter
1574# fpa:  Support for the Digital DEFPA PCI FDDI. `device fddi' is also needed.
1575# fxp:  Intel EtherExpress Pro/100B
1576#	(hint of prefer_iomap can be done to prefer I/O instead of Mem mapping)
1577# gx:   Intel Pro/1000 Gigabit Ethernet (82542, 82543-F, 82543-T)
1578# lge:	Support for PCI gigabit ethernet adapters based on the Level 1
1579#	LXT1001 NetCellerator chipset. This includes the D-Link DGE-500SX,
1580#	SMC TigerCard 1000 (SMC9462SX), and some Addtron cards.
1581# my:	Myson Fast Ethernet (MTD80X, MTD89X)
1582# nge:	Support for PCI gigabit ethernet adapters based on the National
1583#	Semiconductor DP83820 and DP83821 chipset. This includes the
1584#	SMC EZ Card 1000 (SMC9462TX), D-Link DGE-500T, Asante FriendlyNet
1585#	GigaNIX 1000TA and 1000TPC, the Addtron AEG320T, the LinkSys
1586#	EG1032 and EG1064, the Surecom EP-320G-TX and the Netgear GA622T.
1587# pcn:	Support for PCI fast ethernet adapters based on the AMD Am79c97x
1588#	chipsets, including the PCnet/FAST, PCnet/FAST+, PCnet/PRO and
1589#	PCnet/Home. These were previously handled by the lnc driver (and
1590#	still will be if you leave this driver out of the kernel).
1591# rl:   Support for PCI fast ethernet adapters based on the RealTek 8129/8139
1592#       chipset.  Note that the RealTek driver defaults to using programmed
1593#       I/O to do register accesses because memory mapped mode seems to cause
1594#       severe lockups on SMP hardware.  This driver also supports the
1595#       Accton EN1207D `Cheetah' adapter, which uses a chip called
1596#       the MPX 5030/5038, which is either a RealTek in disguise or a
1597#       RealTek workalike.  Note that the D-Link DFE-530TX+ uses the RealTek
1598#       chipset and is supported by this driver, not the 'vr' driver.
1599# sf:   Support for Adaptec Duralink PCI fast ethernet adapters based on the
1600#       Adaptec AIC-6915 "starfire" controller.
1601#       This includes dual and quad port cards, as well as one 100baseFX card.
1602#       Most of these are 64-bit PCI devices, except for one single port
1603#       card which is 32-bit.
1604# sis:  Support for NICs based on the Silicon Integrated Systems SiS 900,
1605#       SiS 7016 and NS DP83815 PCI fast ethernet controller chips.
1606# sbsh:	Support for Granch SBNI16 SHDSL modem PCI adapters
1607# sk:   Support for the SysKonnect SK-984x series PCI gigabit ethernet NICs.
1608#       This includes the SK-9841 and SK-9842 single port cards (single mode
1609#       and multimode fiber) and the SK-9843 and SK-9844 dual port cards
1610#       (also single mode and multimode).
1611#       The driver will autodetect the number of ports on the card and
1612#       attach each one as a separate network interface.
1613# sn:   Support for ISA and PC Card Ethernet devices using the
1614#       SMC91C90/92/94/95 chips.
1615# ste:  Sundance Technologies ST201 PCI fast ethernet controller, includes
1616#       the D-Link DFE-550TX.
1617# ti:   Support for PCI gigabit ethernet NICs based on the Alteon Networks
1618#       Tigon 1 and Tigon 2 chipsets.  This includes the Alteon AceNIC, the
1619#       3Com 3c985, the Netgear GA620 and various others.  Note that you will
1620#       probably want to bump up NMBCLUSTERS a lot to use this driver.
1621# tl:   Support for the Texas Instruments TNETE100 series 'ThunderLAN'
1622#       cards and integrated ethernet controllers.  This includes several
1623#       Compaq Netelligent 10/100 cards and the built-in ethernet controllers
1624#       in several Compaq Prosignia, Proliant and Deskpro systems.  It also
1625#       supports several Olicom 10Mbps and 10/100 boards.
1626# tx:   SMC 9432 TX, BTX and FTX cards. (SMC EtherPower II serie)
1627# txp:	Support for 3Com 3cR990 cards with the "Typhoon" chipset
1628# vr:   Support for various fast ethernet adapters based on the VIA
1629#       Technologies VT3043 `Rhine I' and VT86C100A `Rhine II' chips,
1630#       including the D-Link DFE530TX (see 'rl' for DFE530TX+), the Hawking
1631#       Technologies PN102TX, and the AOpen/Acer ALN-320.
1632# vx:   3Com 3C590 and 3C595
1633# wb:   Support for fast ethernet adapters based on the Winbond W89C840F chip.
1634#       Note: this is not the same as the Winbond W89C940F, which is a
1635#       NE2000 clone.
1636# wi:   Lucent WaveLAN/IEEE 802.11 PCMCIA adapters. Note: this supports both
1637#       the PCMCIA and ISA cards: the ISA card is really a PCMCIA to ISA
1638#       bridge with a PCMCIA adapter plugged into it.
1639# xe:   Xircom/Intel EtherExpress Pro100/16 PC Card ethernet controller,
1640#       Accton Fast EtherCard-16, Compaq Netelligent 10/100 PC Card,
1641#       Toshiba 10/100 Ethernet PC Card, Xircom 16-bit Ethernet + Modem 56
1642# xl:   Support for the 3Com 3c900, 3c905, 3c905B and 3c905C (Fast)
1643#       Etherlink XL cards and integrated controllers.  This includes the
1644#       integrated 3c905B-TX chips in certain Dell Optiplex and Dell
1645#       Precision desktop machines and the integrated 3c905-TX chips
1646#       in Dell Latitude laptop docking stations.
1647#       Also supported: 3Com 3c980(C)-TX, 3Com 3cSOHO100-TX, 3Com 3c450-TX
1648
1649# Order for ISA/EISA devices is important here
1650
1651device		cm
1652hint.cm.0.at="isa"
1653hint.cm.0.port="0x2e0"
1654hint.cm.0.irq="9"
1655hint.cm.0.maddr="0xdc000"
1656device		cs
1657hint.cs.0.at="isa"
1658hint.cs.0.port="0x300"
1659device		ep
1660device		ex
1661device		fe
1662hint.fe.0.at="isa"
1663hint.fe.0.port="0x300"
1664device		fea
1665device		sn
1666hint.sn.0.at="isa"
1667hint.sn.0.port="0x300"
1668hint.sn.0.irq="10"
1669device		an
1670device		awi
1671device		cnw
1672device		wi
1673device		xe
1674
1675# PCI Ethernet NICs that use the common MII bus controller code.
1676device		dc		# DEC/Intel 21143 and various workalikes
1677device		fxp		# Intel EtherExpress PRO/100B (82557, 82558)
1678hint.fxp.0.prefer_iomap="0"
1679device		my		# Myson Fast Ethernet (MTD80X, MTD89X)
1680device		rl		# RealTek 8129/8139
1681device		pcn		# AMD Am79C97x PCI 10/100 NICs
1682device		sf		# Adaptec AIC-6915 (``Starfire'')
1683device		sbsh		# Granch SBNI16 SHDSL modem
1684device		sis		# Silicon Integrated Systems SiS 900/SiS 7016
1685device		ste		# Sundance ST201 (D-Link DFE-550TX)
1686device		tl		# Texas Instruments ThunderLAN
1687device		tx		# SMC EtherPower II (83c170 ``EPIC'')
1688device		vr		# VIA Rhine, Rhine II
1689device		wb		# Winbond W89C840F
1690device		xl		# 3Com 3c90x (``Boomerang'', ``Cyclone'')
1691
1692# PCI Ethernet NICs.
1693device		de		# DEC/Intel DC21x4x (``Tulip'')
1694device		txp		# 3Com 3cR990 (``Typhoon'')
1695device		vx		# 3Com 3c590, 3c595 (``Vortex'')
1696
1697# PCI Gigabit & FDDI NICs.
1698device		bge
1699device		gx
1700device		lge
1701device		nge
1702device		sk
1703device		ti
1704device		fpa
1705
1706# Use "private" jumbo buffers allocated exclusively for the ti(4) driver.
1707# This option is incompatible with the TI_JUMBO_HDRSPLIT option below.
1708#options 	TI_PRIVATE_JUMBOS
1709# Turn on the header splitting option for the ti(4) driver firmware.  This
1710# only works for Tigon II chips, and has no effect for Tigon I chips.
1711options 	TI_JUMBO_HDRSPLIT
1712
1713# These two options allow manipulating the mbuf cluster size and mbuf size,
1714# respectively.  Be very careful with NIC driver modules when changing
1715# these from their default values, because that can potentially cause a
1716# mismatch between the mbuf size assumed by the kernel and the mbuf size
1717# assumed by a module.  The only driver that currently has the ability to
1718# detect a mismatch is ti(4).
1719options 	MCLSHIFT=12	# mbuf cluster shift in bits, 12 == 4KB
1720options 	MSIZE=512	# mbuf size in bytes
1721
1722#
1723# ATM related options (Cranor version)
1724# (note: this driver cannot be used with the HARP ATM stack)
1725#
1726# The `en' device provides support for Efficient Networks (ENI)
1727# ENI-155 PCI midway cards, and the Adaptec 155Mbps PCI ATM cards (ANA-59x0).
1728#
1729# The `hatm' device provides support for Fore/Marconi HE155 and HE622
1730# ATM PCI cards.
1731#
1732# The `fatm' device provides support for Fore PCA200E ATM PCI cards.
1733#
1734# The `patm' device provides support for IDT77252 based cards like
1735# ProSum's ProATM-155 and ProATM-25 and IDT's evaluation boards.
1736#
1737# atm device provides generic atm functions and is required for
1738# atm devices.
1739# NATM enables the netnatm protocol family that can be used to
1740# bypass TCP/IP.
1741#
1742# utopia provides the access to the ATM PHY chips and is required for en,
1743# hatm and fatm.
1744#
1745# the current driver supports only PVC operations (no atm-arp, no multicast).
1746# for more details, please read the original documents at
1747# http://www.ccrc.wustl.edu/pub/chuck/tech/bsdatm/bsdatm.html
1748#
1749device		atm
1750device		en
1751device		fatm			#Fore PCA200E
1752device		hatm			#Fore/Marconi HE155/622
1753device		patm			#IDT77252 cards (ProATM and IDT)
1754device		utopia			#ATM PHY driver
1755options 	NATM			#native ATM
1756
1757options		LIBMBPOOL		#needed by patm, iatm
1758
1759#
1760# Audio drivers: `pcm', `sbc', `gusc'
1761#
1762# pcm: PCM audio through various sound cards.
1763#
1764# This has support for a large number of new audio cards, based on
1765# CS423x, OPTi931, Yamaha OPL-SAx, and also for SB16, GusPnP.
1766# For more information about this driver and supported cards,
1767# see the pcm.4 man page.
1768#
1769# The flags of the device tells the device a bit more info about the
1770# device that normally is obtained through the PnP interface.
1771#	bit  2..0   secondary DMA channel;
1772#	bit  4      set if the board uses two dma channels;
1773#	bit 15..8   board type, overrides autodetection; leave it
1774#		    zero if don't know what to put in (and you don't,
1775#		    since this is unsupported at the moment...).
1776#
1777# Supported cards include:
1778# Creative SoundBlaster ISA PnP/non-PnP
1779# Supports ESS and Avance ISA chips as well.
1780# Gravis UltraSound ISA PnP/non-PnP
1781# Crystal Semiconductor CS461x/428x PCI
1782# Neomagic 256AV (ac97)
1783# Most of the more common ISA/PnP sb/mss/ess compatable cards.
1784
1785device		pcm
1786
1787# For non-pnp sound cards with no bridge drivers only:
1788hint.pcm.0.at="isa"
1789hint.pcm.0.irq="10"
1790hint.pcm.0.drq="1"
1791hint.pcm.0.flags="0x0"
1792
1793#
1794# midi: MIDI interfaces and synthesizers
1795#
1796
1797device		midi
1798
1799# For non-pnp sound cards with no bridge drivers:
1800hint.midi.0.at="isa"
1801hint.midi.0.irq="5"
1802hint.midi.0.flags="0x0"
1803
1804# For serial ports (this example configures port 2):
1805# TODO: implement generic tty-midi interface so that we can use
1806#	other uarts.
1807hint.midi.0.at="isa"
1808hint.midi.0.port="0x2F8"
1809hint.midi.0.irq="3"
1810
1811#
1812# seq: MIDI sequencer
1813#
1814
1815device		seq
1816
1817# The bridge drivers for sound cards.  These can be separately configured
1818# for providing services to the likes of new-midi.
1819# When used with 'device pcm' they also provide pcm sound services.
1820#
1821# sbc:  Creative SoundBlaster ISA PnP/non-PnP
1822#	Supports ESS and Avance ISA chips as well.
1823# gusc: Gravis UltraSound ISA PnP/non-PnP
1824# csa:  Crystal Semiconductor CS461x/428x PCI
1825
1826# For non-PnP cards:
1827device		sbc
1828hint.sbc.0.at="isa"
1829hint.sbc.0.port="0x220"
1830hint.sbc.0.irq="5"
1831hint.sbc.0.drq="1"
1832hint.sbc.0.flags="0x15"
1833device		gusc
1834hint.gusc.0.at="isa"
1835hint.gusc.0.port="0x220"
1836hint.gusc.0.irq="5"
1837hint.gusc.0.drq="1"
1838hint.gusc.0.flags="0x13"
1839
1840#
1841# Miscellaneous hardware:
1842#
1843# scd: Sony CD-ROM using proprietary (non-ATAPI) interface
1844# mcd: Mitsumi CD-ROM using proprietary (non-ATAPI) interface
1845# meteor: Matrox Meteor video capture board
1846# bktr: Brooktree bt848/848a/849a/878/879 video capture and TV Tuner board
1847# cy: Cyclades serial driver
1848# joy: joystick (including IO DATA PCJOY PC Card joystick)
1849# rc: RISCom/8 multiport card
1850# rp: Comtrol Rocketport(ISA/PCI) - single card
1851# si: Specialix SI/XIO 4-32 port terminal multiplexor
1852# nmdm: nullmodem terminal driver (see nmdm(4))
1853
1854# Notes on the Comtrol Rocketport driver:
1855#
1856# The exact values used for rp0 depend on how many boards you have
1857# in the system.  The manufacturer's sample configs are listed as:
1858#
1859#               device  rp	# core driver support
1860#
1861#   Comtrol Rocketport ISA single card
1862#		hint.rp.0.at="isa"
1863#		hint.rp.0.port="0x280"
1864#
1865#   If instead you have two ISA cards, one installed at 0x100 and the
1866#   second installed at 0x180, then you should add the following to
1867#   your kernel probe hints:
1868#		hint.rp.0.at="isa"
1869#		hint.rp.0.port="0x100"
1870#		hint.rp.1.at="isa"
1871#		hint.rp.1.port="0x180"
1872#
1873#   For 4 ISA cards, it might be something like this:
1874#		hint.rp.0.at="isa"
1875#		hint.rp.0.port="0x180"
1876#		hint.rp.1.at="isa"
1877#		hint.rp.1.port="0x100"
1878#		hint.rp.2.at="isa"
1879#		hint.rp.2.port="0x340"
1880#		hint.rp.3.at="isa"
1881#		hint.rp.3.port="0x240"
1882#
1883#   For PCI cards, you need no hints.
1884
1885# Mitsumi CD-ROM
1886device		mcd
1887hint.mcd.0.at="isa"
1888hint.mcd.0.port="0x300"
1889# for the Sony CDU31/33A CDROM
1890device		scd
1891hint.scd.0.at="isa"
1892hint.scd.0.port="0x230"
1893device		joy			# PnP aware, hints for nonpnp only
1894hint.joy.0.at="isa"
1895hint.joy.0.port="0x201"
1896device		rc
1897hint.rc.0.at="isa"
1898hint.rc.0.port="0x220"
1899hint.rc.0.irq="12"
1900device		rp
1901hint.rp.0.at="isa"
1902hint.rp.0.port="0x280"
1903device		si
1904options 	SI_DEBUG
1905hint.si.0.at="isa"
1906hint.si.0.maddr="0xd0000"
1907hint.si.0.irq="12"
1908device		nmdm
1909
1910#
1911# The `meteor' device is a PCI video capture board. It can also have the
1912# following options:
1913#   options METEOR_ALLOC_PAGES=xxx	preallocate kernel pages for data entry
1914#	figure (ROWS*COLUMN*BYTES_PER_PIXEL*FRAME+PAGE_SIZE-1)/PAGE_SIZE
1915#   options METEOR_DEALLOC_PAGES	remove all allocated pages on close(2)
1916#   options METEOR_DEALLOC_ABOVE=xxx	remove all allocated pages above the
1917#	specified amount. If this value is below the allocated amount no action
1918#	taken
1919#   options METEOR_SYSTEM_DEFAULT={METEOR_PAL|METEOR_NTSC|METEOR_SECAM}, used
1920#	for initialization of fps routine when a signal is not present.
1921#
1922# The 'bktr' device is a PCI video capture device using the Brooktree
1923# bt848/bt848a/bt849a/bt878/bt879 chipset. When used with a TV Tuner it forms a
1924# TV card, eg Miro PC/TV, Hauppauge WinCast/TV WinTV, VideoLogic Captivator,
1925# Intel Smart Video III, AverMedia, IMS Turbo, FlyVideo.
1926#
1927# options 	OVERRIDE_CARD=xxx
1928# options 	OVERRIDE_TUNER=xxx
1929# options 	OVERRIDE_MSP=1
1930# options 	OVERRIDE_DBX=1
1931# These options can be used to override the auto detection
1932# The current values for xxx are found in src/sys/dev/bktr/bktr_card.h
1933# Using sysctl(8) run-time overrides on a per-card basis can be made
1934#
1935# options 	BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_PAL
1936# or
1937# options 	BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_NTSC
1938# Specifes the default video capture mode.
1939# This is required for Dual Crystal (28&35Mhz) boards where PAL is used
1940# to prevent hangs during initialisation.  eg VideoLogic Captivator PCI.
1941#
1942# options 	BKTR_USE_PLL
1943# PAL or SECAM users who have a 28Mhz crystal (and no 35Mhz crystal)
1944# must enable PLL mode with this option. eg some new Bt878 cards.
1945#
1946# options 	BKTR_GPIO_ACCESS
1947# This enable IOCTLs which give user level access to the GPIO port.
1948#
1949# options 	BKTR_NO_MSP_RESET
1950# Prevents the MSP34xx reset. Good if you initialise the MSP in another OS first
1951#
1952# options 	BKTR_430_FX_MODE
1953# Switch Bt878/879 cards into Intel 430FX chipset compatibility mode.
1954#
1955# options 	BKTR_SIS_VIA_MODE
1956# Switch Bt878/879 cards into SIS/VIA chipset compatibility mode which is
1957# needed for some old SiS and VIA chipset motherboards.
1958# This also allows Bt878/879 chips to work on old OPTi (<1997) chipset
1959# motherboards and motherboards with bad or incomplete PCI 2.1 support.
1960# As a rough guess, old = before 1998
1961#
1962# options 	BKTR_NEW_MSP34XX_DRIVER
1963# Use new, more complete initialization scheme for the msp34* soundchip.
1964# Should fix stereo autodetection if the old driver does only output
1965# mono sound.
1966
1967device		meteor	1
1968
1969#
1970# options	BKTR_USE_FREEBSD_SMBUS
1971# Compile with FreeBSD SMBus implementation
1972#
1973# Brooktree driver has been ported to the new I2C framework. Thus,
1974# you'll need to have the following 3 lines in the kernel config.
1975#     device smbus
1976#     device iicbus
1977#     device iicbb
1978#     device iicsmb
1979# The iic and smb devices are only needed if you want to control other
1980# I2C slaves connected to the external connector of some cards.
1981#
1982device		bktr
1983
1984#
1985# PC Card/PCMCIA
1986# (OLDCARD)
1987#
1988# card: pccard slots
1989# pcic: isa/pccard bridge
1990#device		pcic
1991#hint.pcic.0.at="isa"
1992#hint.pcic.1.at="isa"
1993#device		card	1
1994
1995#
1996# PC Card/PCMCIA and Cardbus
1997# (NEWCARD)
1998#
1999# Note that NEWCARD and OLDCARD are incompatible.  Do not use both at the same
2000# time.
2001#
2002# pccbb: pci/cardbus bridge implementing YENTA interface
2003# pccard: pccard slots
2004# cardbus: cardbus slots
2005device		cbb
2006device		pccard
2007device		cardbus
2008#device		pcic		ISA attachment currently busted
2009#hint.pcic.0.at="isa"
2010#hint.pcic.1.at="isa"
2011
2012#
2013# SMB bus
2014#
2015# System Management Bus support is provided by the 'smbus' device.
2016# Access to the SMBus device is via the 'smb' device (/dev/smb*),
2017# which is a child of the 'smbus' device.
2018#
2019# Supported devices:
2020# smb		standard io through /dev/smb*
2021#
2022# Supported SMB interfaces:
2023# iicsmb	I2C to SMB bridge with any iicbus interface
2024# bktr		brooktree848 I2C hardware interface
2025# intpm		Intel PIIX4 (82371AB, 82443MX) Power Management Unit
2026# alpm		Acer Aladdin-IV/V/Pro2 Power Management Unit
2027# ichsmb	Intel ICH SMBus controller chips (82801AA, 82801AB, 82801BA)
2028# viapm		VIA VT82C586B/596B/686A and VT8233 Power Management Unit
2029# amdpm		AMD 756 Power Management Unit
2030# nfpm		NVIDIA nForce Power Management Unit
2031#
2032device		smbus		# Bus support, required for smb below.
2033
2034device		intpm
2035device		alpm
2036device		ichsmb
2037device		viapm
2038device		amdpm
2039device		nfpm
2040
2041device		smb
2042
2043#
2044# I2C Bus
2045#
2046# Philips i2c bus support is provided by the `iicbus' device.
2047#
2048# Supported devices:
2049# ic	i2c network interface
2050# iic	i2c standard io
2051# iicsmb i2c to smb bridge. Allow i2c i/o with smb commands.
2052#
2053# Supported interfaces:
2054# bktr	brooktree848 I2C software interface
2055#
2056# Other:
2057# iicbb	generic I2C bit-banging code (needed by lpbb, bktr)
2058#
2059device		iicbus		# Bus support, required for ic/iic/iicsmb below.
2060device		iicbb
2061
2062device		ic
2063device		iic
2064device		iicsmb		# smb over i2c bridge
2065
2066# Parallel-Port Bus
2067#
2068# Parallel port bus support is provided by the `ppbus' device.
2069# Multiple devices may be attached to the parallel port, devices
2070# are automatically probed and attached when found.
2071#
2072# Supported devices:
2073# vpo	Iomega Zip Drive
2074#	Requires SCSI disk support ('scbus' and 'da'), best
2075#	performance is achieved with ports in EPP 1.9 mode.
2076# lpt	Parallel Printer
2077# plip	Parallel network interface
2078# ppi	General-purpose I/O ("Geek Port") + IEEE1284 I/O
2079# pps	Pulse per second Timing Interface
2080# lpbb	Philips official parallel port I2C bit-banging interface
2081#
2082# Supported interfaces:
2083# ppc	ISA-bus parallel port interfaces.
2084#
2085
2086options 	PPC_PROBE_CHIPSET # Enable chipset specific detection
2087				  # (see flags in ppc(4))
2088options 	DEBUG_1284	# IEEE1284 signaling protocol debug
2089options 	PERIPH_1284	# Makes your computer act as an IEEE1284
2090				# compliant peripheral
2091options 	DONTPROBE_1284	# Avoid boot detection of PnP parallel devices
2092options 	VP0_DEBUG	# ZIP/ZIP+ debug
2093options 	LPT_DEBUG	# Printer driver debug
2094options 	PPC_DEBUG	# Parallel chipset level debug
2095options 	PLIP_DEBUG	# Parallel network IP interface debug
2096options 	PCFCLOCK_VERBOSE         # Verbose pcfclock driver
2097options 	PCFCLOCK_MAX_RETRIES=5   # Maximum read tries (default 10)
2098
2099device		ppc
2100hint.ppc.0.at="isa"
2101hint.ppc.0.irq="7"
2102device		ppbus
2103device		vpo
2104device		lpt
2105device		plip
2106device		ppi
2107device		pps
2108device		lpbb
2109device		pcfclock
2110
2111# Kernel BOOTP support
2112
2113options 	BOOTP		# Use BOOTP to obtain IP address/hostname
2114				# Requires NFSCLIENT and NFS_ROOT
2115options 	BOOTP_NFSROOT	# NFS mount root filesystem using BOOTP info
2116options 	BOOTP_NFSV3	# Use NFS v3 to NFS mount root
2117options 	BOOTP_COMPAT	# Workaround for broken bootp daemons.
2118options 	BOOTP_WIRED_TO=fxp0 # Use interface fxp0 for BOOTP
2119
2120#
2121# Add tie-ins for a hardware watchdog.  This only enable the hooks;
2122# the user must still supply the actual driver.
2123#
2124options 	HW_WDOG
2125
2126#
2127# Add software watchdog routines.  This will add some sysctl OIDs that
2128# can be used in combination with an external daemon to create a
2129# software-based watchdog solution.
2130#
2131options		WATCHDOG
2132
2133#
2134# Disable swapping of upages and stack pages.  This option removes all
2135# code which actually performs swapping, so it's not possible to turn
2136# it back on at run-time.
2137#
2138# This is sometimes usable for systems which don't have any swap space
2139# (see also sysctls "vm.defer_swapspace_pageouts" and
2140# "vm.disable_swapspace_pageouts")
2141#
2142#options 	NO_SWAPPING
2143
2144# Set the number of sf_bufs to allocate. sf_bufs are virtual buffers
2145# for sendfile(2) that are used to map file VM pages, and normally
2146# default to a quantity that is roughly 16*MAXUSERS+512. You would
2147# typically want about 4 of these for each simultaneous file send.
2148#
2149options 	NSFBUFS=1024
2150
2151#
2152# Enable extra debugging code for locks.  This stores the filename and
2153# line of whatever acquired the lock in the lock itself, and change a
2154# number of function calls to pass around the relevant data.  This is
2155# not at all useful unless you are debugging lock code.  Also note
2156# that it is likely to break e.g. fstat(1) unless you recompile your
2157# userland with -DDEBUG_LOCKS as well.
2158#
2159options 	DEBUG_LOCKS
2160
2161
2162#####################################################################
2163# USB support
2164# UHCI controller
2165device		uhci
2166# OHCI controller
2167device		ohci
2168# EHCI controller
2169device		ehci
2170# General USB code (mandatory for USB)
2171device		usb
2172#
2173# USB Double Bulk Pipe devices
2174device		udbp
2175# Generic USB device driver
2176device		ugen
2177# Human Interface Device (anything with buttons and dials)
2178device		uhid
2179# USB keyboard
2180device		ukbd
2181# USB printer
2182device		ulpt
2183# USB Iomega Zip 100 Drive (Requires scbus and da)
2184device		umass
2185# USB support for Belkin F5U109 and Magic Control Technology serial adapters
2186device		umct
2187# USB modem support
2188device		umodem
2189# USB mouse
2190device		ums
2191# Diamond Rio 500 Mp3 player
2192device		urio
2193# USB scanners
2194device		uscanner
2195# USB serial support
2196device		ucom
2197# USB support for serial adapters based on the FT8U100AX and FT8U232AM
2198device		uftdi
2199# USB support for Prolific PL-2303 serial adapters
2200device		uplcom
2201# USB support for Belkin F5U103 and compatible serial adapters
2202device		ubsa
2203# USB serial support for DDI pocket's PHS
2204device		uvscom
2205# USB Visor and Palm devices
2206device		uvisor
2207
2208# USB Fm Radio
2209device		ufm
2210#
2211# ADMtek USB ethernet. Supports the LinkSys USB100TX,
2212# the Billionton USB100, the Melco LU-ATX, the D-Link DSB-650TX
2213# and the SMC 2202USB. Also works with the ADMtek AN986 Pegasus
2214# eval board.
2215device		aue
2216#
2217# CATC USB-EL1201A USB ethernet. Supports the CATC Netmate
2218# and Netmate II, and the Belkin F5U111.
2219device		cue
2220#
2221# Kawasaki LSI ethernet. Supports the LinkSys USB10T,
2222# Entrega USB-NET-E45, Peracom Ethernet Adapter, the
2223# 3Com 3c19250, the ADS Technologies USB-10BT, the ATen UC10T,
2224# the Netgear EA101, the D-Link DSB-650, the SMC 2102USB
2225# and 2104USB, and the Corega USB-T.
2226device		kue
2227#
2228# RealTek RTL8150 USB to fast ethernet. Supports the Melco LUA-KTX
2229# and the GREEN HOUSE GH-USB100B.
2230device		rue
2231
2232# debugging options for the USB subsystem
2233#
2234options 	USB_DEBUG
2235
2236# options for ukbd:
2237options 	UKBD_DFLT_KEYMAP	# specify the built-in keymap
2238makeoptions	UKBD_DFLT_KEYMAP=it.iso
2239
2240# options for uvscom:
2241options		UVSCOM_DEFAULT_OPKTSIZE=8	# default output packet size
2242
2243#####################################################################
2244# Firewire support
2245
2246device		firewire	# Firewire bus code
2247device		sbp		# SCSI over Firewire (Requires scbus and da)
2248device		fwe		# Ethernet over Firewire (non-standard!)
2249
2250#####################################################################
2251# crypto subsystem
2252#
2253# This is a port of the openbsd crypto framework.  Include this when
2254# configuring FAST_IPSEC and when you have a h/w crypto device to accelerate
2255# user applications that link to openssl.
2256#
2257# Drivers are ports from openbsd with some simple enhancements that have
2258# been fed back to openbsd.
2259
2260device		crypto		# core crypto support
2261device		cryptodev	# /dev/crypto for access to h/w
2262
2263device		rndtest		# FIPS 140-2 entropy tester
2264
2265device		hifn		# Hifn 7951, 7781, etc.
2266options		HIFN_DEBUG	# enable debugging support: hw.hifn.debug
2267options		HIFN_RNDTEST	# enable rndtest support
2268
2269device		ubsec		# Broadcom 5501, 5601, 58xx
2270options		UBSEC_DEBUG	# enable debugging support: hw.ubsec.debug
2271options		UBSEC_RNDTEST	# enable rndtest support
2272
2273#####################################################################
2274
2275
2276#
2277# Embedded system options:
2278#
2279# An embedded system might want to run something other than init.
2280options 	INIT_PATH=/sbin/init:/stand/sysinstall
2281
2282# Debug options
2283options 	BUS_DEBUG	# enable newbus debugging
2284options 	DEBUG_VFS_LOCKS	# enable vfs lock debugging
2285
2286#####################################################################
2287# SYSV IPC KERNEL PARAMETERS
2288#
2289# Maximum number of entries in a semaphore map.
2290options 	SEMMAP=31
2291
2292# Maximum number of System V semaphores that can be used on the system at
2293# one time.
2294options 	SEMMNI=11
2295
2296# Total number of semaphores system wide
2297options 	SEMMNS=61
2298
2299# Total number of undo structures in system
2300options 	SEMMNU=31
2301
2302# Maximum number of System V semaphores that can be used by a single process
2303# at one time.
2304options 	SEMMSL=61
2305
2306# Maximum number of operations that can be outstanding on a single System V
2307# semaphore at one time.
2308options 	SEMOPM=101
2309
2310# Maximum number of undo operations that can be outstanding on a single
2311# System V semaphore at one time.
2312options 	SEMUME=11
2313
2314# Maximum number of shared memory pages system wide.
2315options 	SHMALL=1025
2316
2317# Maximum size, in bytes, of a single System V shared memory region.
2318options 	SHMMAX=(SHMMAXPGS*PAGE_SIZE+1)
2319options 	SHMMAXPGS=1025
2320
2321# Minimum size, in bytes, of a single System V shared memory region.
2322options 	SHMMIN=2
2323
2324# Maximum number of shared memory regions that can be used on the system
2325# at one time.
2326options 	SHMMNI=33
2327
2328# Maximum number of System V shared memory regions that can be attached to
2329# a single process at one time.
2330options 	SHMSEG=9
2331
2332# Set the amount of time (in seconds) the system will wait before
2333# rebooting automatically when a kernel panic occurs.  If set to (-1),
2334# the system will wait indefinitely until a key is pressed on the
2335# console.
2336options 	PANIC_REBOOT_WAIT_TIME=16
2337
2338# Attempt to bypass the buffer cache and put data directly into the
2339# userland buffer for read operation when O_DIRECT flag is set on the
2340# file.  Both offset and length of the read operation must be
2341# multiples of the physical media sector size.
2342#
2343#options		DIRECTIO
2344
2345# Specify a lower limit for the number of swap I/O buffers.  They are
2346# (among other things) used when bypassing the buffer cache due to
2347# DIRECTIO kernel option enabled and O_DIRECT flag set on file.
2348#
2349#options		NSWBUF_MIN=120
2350
2351#####################################################################
2352
2353# More undocumented options for linting.
2354# Note that documenting these are not considered an affront.
2355
2356options 	CAM_DEBUG_DELAY
2357
2358# VFS cluster debugging.
2359options 	CLUSTERDEBUG
2360
2361options 	DEBUG
2362
2363# Kernel filelock debugging.
2364options 	LOCKF_DEBUG
2365
2366# System V compatible message queues
2367# Please note that the values provided here are used to test kernel
2368# building.  The defaults in the sources provide almost the same numbers.
2369# MSGSSZ must be a power of 2 between 8 and 1024.
2370options 	MSGMNB=2049	# Max number of chars in queue
2371options 	MSGMNI=41	# Max number of message queue identifiers
2372options 	MSGSEG=2049	# Max number of message segments
2373options 	MSGSSZ=16	# Size of a message segment
2374options 	MSGTQL=41	# Max number of messages in system
2375
2376options 	NBUF=512	# Number of buffer headers
2377
2378options 	NMBCLUSTERS=1024	# Number of mbuf clusters
2379
2380options 	SCSI_NCR_DEBUG
2381options 	SCSI_NCR_MAX_SYNC=10000
2382options 	SCSI_NCR_MAX_WIDE=1
2383options 	SCSI_NCR_MYADDR=7
2384
2385options 	SC_DEBUG_LEVEL=5	# Syscons debug level
2386options 	SC_RENDER_DEBUG	# syscons rendering debugging
2387
2388options 	SHOW_BUSYBUFS	# List buffers that prevent root unmount
2389options 	SLIP_IFF_OPTS
2390options 	VFS_BIO_DEBUG	# VFS buffer I/O debugging
2391
2392options		KSTACK_MAX_PAGES=32 # Maximum pages to give the kernel stack
2393
2394# Yet more undocumented options for linting.
2395options 	AAC_DEBUG
2396options 	ACPI_MAX_THREADS=1
2397#!options 	ACPI_NO_SEMAPHORES
2398# Broken:
2399##options 	ASR_MEASURE_PERFORMANCE
2400# BKTR_ALLOC_PAGES has no effect except to cause warnings, and
2401# BROOKTREE_ALLOC_PAGES hasn't actually been superseded by it, since the
2402# driver still mostly spells this option BROOKTREE_ALLOC_PAGES.
2403##options 	BKTR_ALLOC_PAGES=(217*4+1)
2404options 	BROOKTREE_ALLOC_PAGES=(217*4+1)
2405options 	MAXFILES=999
2406# METEOR_TEST_VIDEO has no effect since meteor is broken.
2407options 	METEOR_TEST_VIDEO
2408options 	NDEVFSINO=1025
2409options 	NDEVFSOVERFLOW=32769
2410
2411# Yet more undocumented options for linting.
2412options 	VGA_DEBUG
2413