xref: /freebsd/sys/conf/NOTES (revision 7750ad47a9a7dbc83f87158464170c8640723293)
1# $FreeBSD$
2#
3# NOTES -- Lines that can be cut/pasted into kernel and hints configs.
4#
5# Lines that begin with 'device', 'options', 'machine', 'ident', 'maxusers',
6# 'makeoptions', 'hints', etc. go into the kernel configuration that you
7# run config(8) with.
8#
9# Lines that begin with 'hint.' are NOT for config(8), they go into your
10# hints file.  See /boot/device.hints and/or the 'hints' config(8) directive.
11#
12# Please use ``make LINT'' to create an old-style LINT file if you want to
13# do kernel test-builds.
14#
15# This file contains machine independent kernel configuration notes.  For
16# machine dependent notes, look in /sys/<arch>/conf/NOTES.
17#
18
19#
20# NOTES conventions and style guide:
21#
22# Large block comments should begin and end with a line containing only a
23# comment character.
24#
25# To describe a particular object, a block comment (if it exists) should
26# come first.  Next should come device, options, and hints lines in that
27# order.  All device and option lines must be described by a comment that
28# doesn't just expand the device or option name.  Use only a concise
29# comment on the same line if possible.  Very detailed descriptions of
30# devices and subsystems belong in man pages.
31#
32# A space followed by a tab separates 'options' from an option name.  Two
33# spaces followed by a tab separate 'device' from a device name.  Comments
34# after an option or device should use one space after the comment character.
35# To comment out a negative option that disables code and thus should not be
36# enabled for LINT builds, precede 'options' with "#!".
37#
38
39#
40# This is the ``identification'' of the kernel.  Usually this should
41# be the same as the name of your kernel.
42#
43ident		LINT
44
45#
46# The `maxusers' parameter controls the static sizing of a number of
47# internal system tables by a formula defined in subr_param.c.
48# Omitting this parameter or setting it to 0 will cause the system to
49# auto-size based on physical memory.
50#
51maxusers	10
52
53# To statically compile in device wiring instead of /boot/device.hints
54#hints		"LINT.hints"		# Default places to look for devices.
55
56# Use the following to compile in values accessible to the kernel
57# through getenv() (or kenv(1) in userland). The format of the file
58# is 'variable=value', see kenv(1)
59#
60#env		"LINT.env"
61
62#
63# The `makeoptions' parameter allows variables to be passed to the
64# generated Makefile in the build area.
65#
66# CONF_CFLAGS gives some extra compiler flags that are added to ${CFLAGS}
67# after most other flags.  Here we use it to inhibit use of non-optimal
68# gcc built-in functions (e.g., memcmp).
69#
70# DEBUG happens to be magic.
71# The following is equivalent to 'config -g KERNELNAME' and creates
72# 'kernel.debug' compiled with -g debugging as well as a normal
73# 'kernel'.  Use 'make install.debug' to install the debug kernel
74# but that isn't normally necessary as the debug symbols are not loaded
75# by the kernel and are not useful there anyway.
76#
77# KERNEL can be overridden so that you can change the default name of your
78# kernel.
79#
80# MODULES_OVERRIDE can be used to limit modules built to a specific list.
81#
82makeoptions	CONF_CFLAGS=-fno-builtin  #Don't allow use of memcmp, etc.
83#makeoptions	DEBUG=-g		#Build kernel with gdb(1) debug symbols
84#makeoptions	KERNEL=foo		#Build kernel "foo" and install "/foo"
85# Only build ext2fs module plus those parts of the sound system I need.
86#makeoptions	MODULES_OVERRIDE="ext2fs sound/sound sound/driver/maestro3"
87makeoptions	DESTDIR=/tmp
88
89#
90# FreeBSD processes are subject to certain limits to their consumption
91# of system resources.  See getrlimit(2) for more details.  Each
92# resource limit has two values, a "soft" limit and a "hard" limit.
93# The soft limits can be modified during normal system operation, but
94# the hard limits are set at boot time.  Their default values are
95# in sys/<arch>/include/vmparam.h.  There are two ways to change them:
96#
97# 1.  Set the values at kernel build time.  The options below are one
98#     way to allow that limit to grow to 1GB.  They can be increased
99#     further by changing the parameters:
100#
101# 2.  In /boot/loader.conf, set the tunables kern.maxswzone,
102#     kern.maxbcache, kern.maxtsiz, kern.dfldsiz, kern.maxdsiz,
103#     kern.dflssiz, kern.maxssiz and kern.sgrowsiz.
104#
105# The options in /boot/loader.conf override anything in the kernel
106# configuration file.  See the function init_param1 in
107# sys/kern/subr_param.c for more details.
108#
109
110options 	MAXDSIZ=(1024UL*1024*1024)
111options 	MAXSSIZ=(128UL*1024*1024)
112options 	DFLDSIZ=(1024UL*1024*1024)
113
114#
115# BLKDEV_IOSIZE sets the default block size used in user block
116# device I/O.  Note that this value will be overridden by the label
117# when specifying a block device from a label with a non-0
118# partition blocksize.  The default is PAGE_SIZE.
119#
120options 	BLKDEV_IOSIZE=8192
121
122#
123# MAXPHYS and DFLTPHYS
124#
125# These are the maximal and safe 'raw' I/O block device access sizes.
126# Reads and writes will be split into MAXPHYS chunks for known good
127# devices and DFLTPHYS for the rest. Some applications have better
128# performance with larger raw I/O access sizes. Note that certain VM
129# parameters are derived from these values and making them too large
130# can make an an unbootable kernel.
131#
132# The defaults are 64K and 128K respectively.
133options 	DFLTPHYS=(64*1024)
134options 	MAXPHYS=(128*1024)
135
136
137# This allows you to actually store this configuration file into
138# the kernel binary itself. See config(8) for more details.
139#
140options 	INCLUDE_CONFIG_FILE     # Include this file in kernel
141
142options 	GEOM_AES		# Don't use, use GEOM_BDE
143options 	GEOM_BDE		# Disk encryption.
144options 	GEOM_BSD		# BSD disklabels
145options 	GEOM_CACHE		# Disk cache.
146options 	GEOM_CONCAT		# Disk concatenation.
147options 	GEOM_ELI		# Disk encryption.
148options 	GEOM_FOX		# Redundant path mitigation
149options 	GEOM_GATE		# Userland services.
150options 	GEOM_JOURNAL		# Journaling.
151options 	GEOM_LABEL		# Providers labelization.
152options 	GEOM_LINUX_LVM		# Linux LVM2 volumes
153options 	GEOM_MBR		# DOS/MBR partitioning
154options 	GEOM_MIRROR		# Disk mirroring.
155options 	GEOM_MULTIPATH		# Disk multipath
156options 	GEOM_NOP		# Test class.
157options 	GEOM_PART_APM		# Apple partitioning
158options 	GEOM_PART_BSD		# BSD disklabel
159options 	GEOM_PART_EBR		# Extended Boot Records
160options 	GEOM_PART_EBR_COMPAT	# Backward compatible partition names
161options 	GEOM_PART_GPT		# GPT partitioning
162options 	GEOM_PART_LDM		# Logical Disk Manager
163options 	GEOM_PART_MBR		# MBR partitioning
164options 	GEOM_PART_PC98		# PC-9800 disk partitioning
165options 	GEOM_PART_VTOC8		# SMI VTOC8 disk label
166options 	GEOM_PC98		# NEC PC9800 partitioning
167options 	GEOM_RAID		# Soft RAID functionality.
168options 	GEOM_RAID3		# RAID3 functionality.
169options 	GEOM_SHSEC		# Shared secret.
170options 	GEOM_STRIPE		# Disk striping.
171options 	GEOM_SUNLABEL		# Sun/Solaris partitioning
172options 	GEOM_UZIP		# Read-only compressed disks
173options 	GEOM_VIRSTOR		# Virtual storage.
174options 	GEOM_VOL		# Volume names from UFS superblock
175options 	GEOM_ZERO		# Performance testing helper.
176
177#
178# The root device and filesystem type can be compiled in;
179# this provides a fallback option if the root device cannot
180# be correctly guessed by the bootstrap code, or an override if
181# the RB_DFLTROOT flag (-r) is specified when booting the kernel.
182#
183options 	ROOTDEVNAME=\"ufs:da0s2e\"
184
185
186#####################################################################
187# Scheduler options:
188#
189# Specifying one of SCHED_4BSD or SCHED_ULE is mandatory.  These options
190# select which scheduler is compiled in.
191#
192# SCHED_4BSD is the historical, proven, BSD scheduler.  It has a global run
193# queue and no CPU affinity which makes it suboptimal for SMP.  It has very
194# good interactivity and priority selection.
195#
196# SCHED_ULE provides significant performance advantages over 4BSD on many
197# workloads on SMP machines.  It supports cpu-affinity, per-cpu runqueues
198# and scheduler locks.  It also has a stronger notion of interactivity
199# which leads to better responsiveness even on uniprocessor machines.  This
200# is the default scheduler.
201#
202# SCHED_STATS is a debugging option which keeps some stats in the sysctl
203# tree at 'kern.sched.stats' and is useful for debugging scheduling decisions.
204#
205options 	SCHED_4BSD
206options 	SCHED_STATS
207#options 	SCHED_ULE
208
209#####################################################################
210# SMP OPTIONS:
211#
212# SMP enables building of a Symmetric MultiProcessor Kernel.
213
214# Mandatory:
215options 	SMP			# Symmetric MultiProcessor Kernel
216
217# MAXCPU defines the maximum number of CPUs that can boot in the system.
218# A default value should be already present, for every architecture.
219options 	MAXCPU=32
220
221# ADAPTIVE_MUTEXES changes the behavior of blocking mutexes to spin
222# if the thread that currently owns the mutex is executing on another
223# CPU.  This behavior is enabled by default, so this option can be used
224# to disable it.
225options 	NO_ADAPTIVE_MUTEXES
226
227# ADAPTIVE_RWLOCKS changes the behavior of reader/writer locks to spin
228# if the thread that currently owns the rwlock is executing on another
229# CPU.  This behavior is enabled by default, so this option can be used
230# to disable it.
231options 	NO_ADAPTIVE_RWLOCKS
232
233# ADAPTIVE_SX changes the behavior of sx locks to spin if the thread that
234# currently owns the sx lock is executing on another CPU.
235# This behavior is enabled by default, so this option can be used to
236# disable it.
237options 	NO_ADAPTIVE_SX
238
239# MUTEX_NOINLINE forces mutex operations to call functions to perform each
240# operation rather than inlining the simple cases.  This can be used to
241# shrink the size of the kernel text segment.  Note that this behavior is
242# already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
243# and WITNESS options.
244options 	MUTEX_NOINLINE
245
246# RWLOCK_NOINLINE forces rwlock operations to call functions to perform each
247# operation rather than inlining the simple cases.  This can be used to
248# shrink the size of the kernel text segment.  Note that this behavior is
249# already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
250# and WITNESS options.
251options 	RWLOCK_NOINLINE
252
253# SX_NOINLINE forces sx lock operations to call functions to perform each
254# operation rather than inlining the simple cases.  This can be used to
255# shrink the size of the kernel text segment.  Note that this behavior is
256# already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
257# and WITNESS options.
258options 	SX_NOINLINE
259
260# SMP Debugging Options:
261#
262# PREEMPTION allows the threads that are in the kernel to be preempted by
263#	  higher priority [interrupt] threads.  It helps with interactivity
264#	  and allows interrupt threads to run sooner rather than waiting.
265#	  WARNING! Only tested on amd64 and i386.
266# FULL_PREEMPTION instructs the kernel to preempt non-realtime kernel
267#	  threads.  Its sole use is to expose race conditions and other
268#	  bugs during development.  Enabling this option will reduce
269#	  performance and increase the frequency of kernel panics by
270#	  design.  If you aren't sure that you need it then you don't.
271#	  Relies on the PREEMPTION option.  DON'T TURN THIS ON.
272# MUTEX_DEBUG enables various extra assertions in the mutex code.
273# SLEEPQUEUE_PROFILING enables rudimentary profiling of the hash table
274#	  used to hold active sleep queues as well as sleep wait message
275#	  frequency.
276# TURNSTILE_PROFILING enables rudimentary profiling of the hash table
277#	  used to hold active lock queues.
278# UMTX_PROFILING enables rudimentary profiling of the hash table used
279	  to hold active lock queues.
280# WITNESS enables the witness code which detects deadlocks and cycles
281#         during locking operations.
282# WITNESS_KDB causes the witness code to drop into the kernel debugger if
283#	  a lock hierarchy violation occurs or if locks are held when going to
284#	  sleep.
285# WITNESS_SKIPSPIN disables the witness checks on spin mutexes.
286options 	PREEMPTION
287options 	FULL_PREEMPTION
288options 	MUTEX_DEBUG
289options 	WITNESS
290options 	WITNESS_KDB
291options 	WITNESS_SKIPSPIN
292
293# LOCK_PROFILING - Profiling locks.  See LOCK_PROFILING(9) for details.
294options 	LOCK_PROFILING
295# Set the number of buffers and the hash size.  The hash size MUST be larger
296# than the number of buffers.  Hash size should be prime.
297options 	MPROF_BUFFERS="1536"
298options 	MPROF_HASH_SIZE="1543"
299
300# Profiling for internal hash tables.
301options 	SLEEPQUEUE_PROFILING
302options 	TURNSTILE_PROFILING
303options 	UMTX_PROFILING
304
305
306#####################################################################
307# COMPATIBILITY OPTIONS
308
309#
310# Implement system calls compatible with 4.3BSD and older versions of
311# FreeBSD.  You probably do NOT want to remove this as much current code
312# still relies on the 4.3 emulation.  Note that some architectures that
313# are supported by FreeBSD do not include support for certain important
314# aspects of this compatibility option, namely those related to the
315# signal delivery mechanism.
316#
317options 	COMPAT_43
318
319# Old tty interface.
320options 	COMPAT_43TTY
321
322# Note that as a general rule, COMPAT_FREEBSD<n> depends on
323# COMPAT_FREEBSD<n+1>, COMPAT_FREEBSD<n+2>, etc.
324
325# Enable FreeBSD4 compatibility syscalls
326options 	COMPAT_FREEBSD4
327
328# Enable FreeBSD5 compatibility syscalls
329options 	COMPAT_FREEBSD5
330
331# Enable FreeBSD6 compatibility syscalls
332options 	COMPAT_FREEBSD6
333
334# Enable FreeBSD7 compatibility syscalls
335options 	COMPAT_FREEBSD7
336
337#
338# These three options provide support for System V Interface
339# Definition-style interprocess communication, in the form of shared
340# memory, semaphores, and message queues, respectively.
341#
342options 	SYSVSHM
343options 	SYSVSEM
344options 	SYSVMSG
345
346
347#####################################################################
348# DEBUGGING OPTIONS
349
350#
351# Compile with kernel debugger related code.
352#
353options 	KDB
354
355#
356# Print a stack trace of the current thread on the console for a panic.
357#
358options 	KDB_TRACE
359
360#
361# Don't enter the debugger for a panic. Intended for unattended operation
362# where you may want to enter the debugger from the console, but still want
363# the machine to recover from a panic.
364#
365options 	KDB_UNATTENDED
366
367#
368# Enable the ddb debugger backend.
369#
370options 	DDB
371
372#
373# Print the numerical value of symbols in addition to the symbolic
374# representation.
375#
376options 	DDB_NUMSYM
377
378#
379# Enable the remote gdb debugger backend.
380#
381options 	GDB
382
383#
384# SYSCTL_DEBUG enables a 'sysctl' debug tree that can be used to dump the
385# contents of the registered sysctl nodes on the console.  It is disabled by
386# default because it generates excessively verbose console output that can
387# interfere with serial console operation.
388#
389options 	SYSCTL_DEBUG
390
391#
392# NO_SYSCTL_DESCR omits the sysctl node descriptions to save space in the
393# resulting kernel.
394options		NO_SYSCTL_DESCR
395
396#
397# MALLOC_DEBUG_MAXZONES enables multiple uma zones for malloc(9)
398# allocations that are smaller than a page.  The purpose is to isolate
399# different malloc types into hash classes, so that any buffer
400# overruns or use-after-free will usually only affect memory from
401# malloc types in that hash class.  This is purely a debugging tool;
402# by varying the hash function and tracking which hash class was
403# corrupted, the intersection of the hash classes from each instance
404# will point to a single malloc type that is being misused.  At this
405# point inspection or memguard(9) can be used to catch the offending
406# code.
407#
408options 	MALLOC_DEBUG_MAXZONES=8
409
410#
411# DEBUG_MEMGUARD builds and enables memguard(9), a replacement allocator
412# for the kernel used to detect modify-after-free scenarios.  See the
413# memguard(9) man page for more information on usage.
414#
415options 	DEBUG_MEMGUARD
416
417#
418# DEBUG_REDZONE enables buffer underflows and buffer overflows detection for
419# malloc(9).
420#
421options 	DEBUG_REDZONE
422
423#
424# KTRACE enables the system-call tracing facility ktrace(2).  To be more
425# SMP-friendly, KTRACE uses a worker thread to process most trace events
426# asynchronously to the thread generating the event.  This requires a
427# pre-allocated store of objects representing trace events.  The
428# KTRACE_REQUEST_POOL option specifies the initial size of this store.
429# The size of the pool can be adjusted both at boottime and runtime via
430# the kern.ktrace_request_pool tunable and sysctl.
431#
432options 	KTRACE			#kernel tracing
433options 	KTRACE_REQUEST_POOL=101
434
435#
436# KTR is a kernel tracing facility imported from BSD/OS.  It is
437# enabled with the KTR option.  KTR_ENTRIES defines the number of
438# entries in the circular trace buffer; it must be a power of two.
439# KTR_COMPILE defines the mask of events to compile into the kernel as
440# defined by the KTR_* constants in <sys/ktr.h>.  KTR_MASK defines the
441# initial value of the ktr_mask variable which determines at runtime
442# what events to trace.  KTR_CPUMASK determines which CPU's log
443# events, with bit X corresponding to CPU X.  The layout of the string
444# passed as KTR_CPUMASK must match a series of bitmasks each of them
445# separated by the ", " characters (ie:
446# KTR_CPUMASK=("0xAF, 0xFFFFFFFFFFFFFFFF")).  KTR_VERBOSE enables
447# dumping of KTR events to the console by default.  This functionality
448# can be toggled via the debug.ktr_verbose sysctl and defaults to off
449# if KTR_VERBOSE is not defined.  See ktr(4) and ktrdump(8) for details.
450#
451options 	KTR
452options 	KTR_ENTRIES=1024
453options 	KTR_COMPILE=(KTR_INTR|KTR_PROC)
454options 	KTR_MASK=KTR_INTR
455options 	KTR_CPUMASK=("0x3")
456options 	KTR_VERBOSE
457
458#
459# ALQ(9) is a facility for the asynchronous queuing of records from the kernel
460# to a vnode, and is employed by services such as ktr(4) to produce trace
461# files based on a kernel event stream.  Records are written asynchronously
462# in a worker thread.
463#
464options 	ALQ
465options 	KTR_ALQ
466
467#
468# The INVARIANTS option is used in a number of source files to enable
469# extra sanity checking of internal structures.  This support is not
470# enabled by default because of the extra time it would take to check
471# for these conditions, which can only occur as a result of
472# programming errors.
473#
474options 	INVARIANTS
475
476#
477# The INVARIANT_SUPPORT option makes us compile in support for
478# verifying some of the internal structures.  It is a prerequisite for
479# 'INVARIANTS', as enabling 'INVARIANTS' will make these functions be
480# called.  The intent is that you can set 'INVARIANTS' for single
481# source files (by changing the source file or specifying it on the
482# command line) if you have 'INVARIANT_SUPPORT' enabled.  Also, if you
483# wish to build a kernel module with 'INVARIANTS', then adding
484# 'INVARIANT_SUPPORT' to your kernel will provide all the necessary
485# infrastructure without the added overhead.
486#
487options 	INVARIANT_SUPPORT
488
489#
490# The DIAGNOSTIC option is used to enable extra debugging information
491# from some parts of the kernel.  As this makes everything more noisy,
492# it is disabled by default.
493#
494options 	DIAGNOSTIC
495
496#
497# REGRESSION causes optional kernel interfaces necessary only for regression
498# testing to be enabled.  These interfaces may constitute security risks
499# when enabled, as they permit processes to easily modify aspects of the
500# run-time environment to reproduce unlikely or unusual (possibly normally
501# impossible) scenarios.
502#
503options 	REGRESSION
504
505#
506# This option lets some drivers co-exist that can't co-exist in a running
507# system.  This is used to be able to compile all kernel code in one go for
508# quality assurance purposes (like this file, which the option takes it name
509# from.)
510#
511options 	COMPILING_LINT
512
513#
514# STACK enables the stack(9) facility, allowing the capture of kernel stack
515# for the purpose of procinfo(1), etc.  stack(9) will also be compiled in
516# automatically if DDB(4) is compiled into the kernel.
517#
518options 	STACK
519
520
521#####################################################################
522# PERFORMANCE MONITORING OPTIONS
523
524#
525# The hwpmc driver that allows the use of in-CPU performance monitoring
526# counters for performance monitoring.  The base kernel needs to be configured
527# with the 'options' line, while the hwpmc device can be either compiled
528# in or loaded as a loadable kernel module.
529#
530# Additional configuration options may be required on specific architectures,
531# please see hwpmc(4).
532
533device		hwpmc			# Driver (also a loadable module)
534options 	HWPMC_HOOKS		# Other necessary kernel hooks
535
536
537#####################################################################
538# NETWORKING OPTIONS
539
540#
541# Protocol families
542#
543options 	INET			#Internet communications protocols
544options 	INET6			#IPv6 communications protocols
545
546options 	ROUTETABLES=2		# max 16. 1 is back compatible.
547
548# In order to enable IPSEC you MUST also add device crypto to
549# your kernel configuration
550options 	IPSEC			#IP security (requires device crypto)
551#options 	IPSEC_DEBUG		#debug for IP security
552#
553# #DEPRECATED#
554# Set IPSEC_FILTERTUNNEL to change the default of the sysctl to force packets
555# coming through a tunnel to be processed by any configured packet filtering
556# twice. The default is that packets coming out of a tunnel are _not_ processed;
557# they are assumed trusted.
558#
559# IPSEC history is preserved for such packets, and can be filtered
560# using ipfw(8)'s 'ipsec' keyword, when this option is enabled.
561#
562#options 	IPSEC_FILTERTUNNEL	#filter ipsec packets from a tunnel
563#
564# Set IPSEC_NAT_T to enable NAT-Traversal support.  This enables
565# optional UDP encapsulation of ESP packets.
566#
567options		IPSEC_NAT_T		#NAT-T support, UDP encap of ESP
568
569options 	IPX			#IPX/SPX communications protocols
570
571options 	NCP			#NetWare Core protocol
572
573options 	NETATALK		#Appletalk communications protocols
574options 	NETATALKDEBUG		#Appletalk debugging
575
576#
577# SMB/CIFS requester
578# NETSMB enables support for SMB protocol, it requires LIBMCHAIN and LIBICONV
579# options.
580options 	NETSMB			#SMB/CIFS requester
581
582# mchain library. It can be either loaded as KLD or compiled into kernel
583options 	LIBMCHAIN
584
585# libalias library, performing NAT
586options 	LIBALIAS
587
588# flowtable cache
589options 	FLOWTABLE
590
591#
592# SCTP is a NEW transport protocol defined by
593# RFC2960 updated by RFC3309 and RFC3758.. and
594# soon to have a new base RFC and many many more
595# extensions. This release supports all the extensions
596# including many drafts (most about to become RFC's).
597# It is the reference implementation of SCTP
598# and is quite well tested.
599#
600# Note YOU MUST have both INET and INET6 defined.
601# You don't have to enable V6, but SCTP is
602# dual stacked and so far we have not torn apart
603# the V6 and V4.. since an association can span
604# both a V6 and V4 address at the SAME time :-)
605#
606options 	SCTP
607# There are bunches of options:
608# this one turns on all sorts of
609# nastily printing that you can
610# do. It's all controlled by a
611# bit mask (settable by socket opt and
612# by sysctl). Including will not cause
613# logging until you set the bits.. but it
614# can be quite verbose.. so without this
615# option we don't do any of the tests for
616# bits and prints.. which makes the code run
617# faster.. if you are not debugging don't use.
618options 	SCTP_DEBUG
619#
620# This option turns off the CRC32c checksum. Basically,
621# you will not be able to talk to anyone else who
622# has not done this. Its more for experimentation to
623# see how much CPU the CRC32c really takes. Most new
624# cards for TCP support checksum offload.. so this
625# option gives you a "view" into what SCTP would be
626# like with such an offload (which only exists in
627# high in iSCSI boards so far). With the new
628# splitting 8's algorithm its not as bad as it used
629# to be.. but it does speed things up try only
630# for in a captured lab environment :-)
631options 	SCTP_WITH_NO_CSUM
632#
633
634#
635# All that options after that turn on specific types of
636# logging. You can monitor CWND growth, flight size
637# and all sorts of things. Go look at the code and
638# see. I have used this to produce interesting
639# charts and graphs as well :->
640#
641# I have not yet committed the tools to get and print
642# the logs, I will do that eventually .. before then
643# if you want them send me an email rrs@freebsd.org
644# You basically must have ktr(4) enabled for these
645# and you then set the sysctl to turn on/off various
646# logging bits. Use ktrdump(8) to pull the log and run
647# it through a display program.. and graphs and other
648# things too.
649#
650options 	SCTP_LOCK_LOGGING
651options 	SCTP_MBUF_LOGGING
652options 	SCTP_MBCNT_LOGGING
653options 	SCTP_PACKET_LOGGING
654options 	SCTP_LTRACE_CHUNKS
655options 	SCTP_LTRACE_ERRORS
656
657
658# altq(9). Enable the base part of the hooks with the ALTQ option.
659# Individual disciplines must be built into the base system and can not be
660# loaded as modules at this point. ALTQ requires a stable TSC so if yours is
661# broken or changes with CPU throttling then you must also have the ALTQ_NOPCC
662# option.
663options 	ALTQ
664options 	ALTQ_CBQ	# Class Based Queueing
665options 	ALTQ_RED	# Random Early Detection
666options 	ALTQ_RIO	# RED In/Out
667options 	ALTQ_HFSC	# Hierarchical Packet Scheduler
668options 	ALTQ_CDNR	# Traffic conditioner
669options 	ALTQ_PRIQ	# Priority Queueing
670options 	ALTQ_NOPCC	# Required if the TSC is unusable
671options 	ALTQ_DEBUG
672
673# netgraph(4). Enable the base netgraph code with the NETGRAPH option.
674# Individual node types can be enabled with the corresponding option
675# listed below; however, this is not strictly necessary as netgraph
676# will automatically load the corresponding KLD module if the node type
677# is not already compiled into the kernel. Each type below has a
678# corresponding man page, e.g., ng_async(8).
679options 	NETGRAPH		# netgraph(4) system
680options 	NETGRAPH_DEBUG		# enable extra debugging, this
681					# affects netgraph(4) and nodes
682# Node types
683options 	NETGRAPH_ASYNC
684options 	NETGRAPH_ATMLLC
685options 	NETGRAPH_ATM_ATMPIF
686options 	NETGRAPH_BLUETOOTH		# ng_bluetooth(4)
687options 	NETGRAPH_BLUETOOTH_BT3C		# ng_bt3c(4)
688options 	NETGRAPH_BLUETOOTH_HCI		# ng_hci(4)
689options 	NETGRAPH_BLUETOOTH_L2CAP	# ng_l2cap(4)
690options 	NETGRAPH_BLUETOOTH_SOCKET	# ng_btsocket(4)
691options 	NETGRAPH_BLUETOOTH_UBT		# ng_ubt(4)
692options 	NETGRAPH_BLUETOOTH_UBTBCMFW	# ubtbcmfw(4)
693options 	NETGRAPH_BPF
694options 	NETGRAPH_BRIDGE
695options 	NETGRAPH_CAR
696options 	NETGRAPH_CISCO
697options 	NETGRAPH_DEFLATE
698options 	NETGRAPH_DEVICE
699options 	NETGRAPH_ECHO
700options 	NETGRAPH_EIFACE
701options 	NETGRAPH_ETHER
702options 	NETGRAPH_FEC
703options 	NETGRAPH_FRAME_RELAY
704options 	NETGRAPH_GIF
705options 	NETGRAPH_GIF_DEMUX
706options 	NETGRAPH_HOLE
707options 	NETGRAPH_IFACE
708options 	NETGRAPH_IP_INPUT
709options 	NETGRAPH_IPFW
710options 	NETGRAPH_KSOCKET
711options 	NETGRAPH_L2TP
712options 	NETGRAPH_LMI
713# MPPC compression requires proprietary files (not included)
714#options 	NETGRAPH_MPPC_COMPRESSION
715options 	NETGRAPH_MPPC_ENCRYPTION
716options 	NETGRAPH_NETFLOW
717options 	NETGRAPH_NAT
718options 	NETGRAPH_ONE2MANY
719options 	NETGRAPH_PATCH
720options 	NETGRAPH_PIPE
721options 	NETGRAPH_PPP
722options 	NETGRAPH_PPPOE
723options 	NETGRAPH_PPTPGRE
724options 	NETGRAPH_PRED1
725options 	NETGRAPH_RFC1490
726options 	NETGRAPH_SOCKET
727options 	NETGRAPH_SPLIT
728options 	NETGRAPH_SPPP
729options 	NETGRAPH_TAG
730options 	NETGRAPH_TCPMSS
731options 	NETGRAPH_TEE
732options 	NETGRAPH_UI
733options 	NETGRAPH_VJC
734options 	NETGRAPH_VLAN
735
736# NgATM - Netgraph ATM
737options 	NGATM_ATM
738options 	NGATM_ATMBASE
739options 	NGATM_SSCOP
740options 	NGATM_SSCFU
741options 	NGATM_UNI
742options 	NGATM_CCATM
743
744device		mn	# Munich32x/Falc54 Nx64kbit/sec cards.
745
746#
747# Network interfaces:
748#  The `loop' device is MANDATORY when networking is enabled.
749device		loop
750
751#  The `ether' device provides generic code to handle
752#  Ethernets; it is MANDATORY when an Ethernet device driver is
753#  configured or token-ring is enabled.
754device		ether
755
756#  The `vlan' device implements the VLAN tagging of Ethernet frames
757#  according to IEEE 802.1Q.
758device		vlan
759
760#  The `wlan' device provides generic code to support 802.11
761#  drivers, including host AP mode; it is MANDATORY for the wi,
762#  and ath drivers and will eventually be required by all 802.11 drivers.
763device		wlan
764options 	IEEE80211_DEBUG		#enable debugging msgs
765options 	IEEE80211_AMPDU_AGE	#age frames in AMPDU reorder q's
766options 	IEEE80211_SUPPORT_MESH	#enable 802.11s D3.0 support
767options 	IEEE80211_SUPPORT_TDMA	#enable TDMA support
768
769#  The `wlan_wep', `wlan_tkip', and `wlan_ccmp' devices provide
770#  support for WEP, TKIP, and AES-CCMP crypto protocols optionally
771#  used with 802.11 devices that depend on the `wlan' module.
772device		wlan_wep
773device		wlan_ccmp
774device		wlan_tkip
775
776#  The `wlan_xauth' device provides support for external (i.e. user-mode)
777#  authenticators for use with 802.11 drivers that use the `wlan'
778#  module and support 802.1x and/or WPA security protocols.
779device		wlan_xauth
780
781#  The `wlan_acl' device provides a MAC-based access control mechanism
782#  for use with 802.11 drivers operating in ap mode and using the
783#  `wlan' module.
784#  The 'wlan_amrr' device provides AMRR transmit rate control algorithm
785device		wlan_acl
786device		wlan_amrr
787
788# Generic TokenRing
789device		token
790
791#  The `fddi' device provides generic code to support FDDI.
792device		fddi
793
794#  The `arcnet' device provides generic code to support Arcnet.
795device		arcnet
796
797#  The `sppp' device serves a similar role for certain types
798#  of synchronous PPP links (like `cx', `ar').
799device		sppp
800
801#  The `bpf' device enables the Berkeley Packet Filter.  Be
802#  aware of the legal and administrative consequences of enabling this
803#  option.  DHCP requires bpf.
804device		bpf
805
806#  The `netmap' device implements memory-mapped access to network
807#  devices from userspace, enabling wire-speed packet capture and
808#  generation even at 10Gbit/s. Requires support in the device
809#  driver. Supported drivers are ixgbe, e1000, re.
810device		netmap
811
812#  The `disc' device implements a minimal network interface,
813#  which throws away all packets sent and never receives any.  It is
814#  included for testing and benchmarking purposes.
815device		disc
816
817# The `epair' device implements a virtual back-to-back connected Ethernet
818# like interface pair.
819device		epair
820
821#  The `edsc' device implements a minimal Ethernet interface,
822#  which discards all packets sent and receives none.
823device		edsc
824
825#  The `tap' device is a pty-like virtual Ethernet interface
826device		tap
827
828#  The `tun' device implements (user-)ppp and nos-tun(8)
829device		tun
830
831#  The `gif' device implements IPv6 over IP4 tunneling,
832#  IPv4 over IPv6 tunneling, IPv4 over IPv4 tunneling and
833#  IPv6 over IPv6 tunneling.
834#  The `gre' device implements two types of IP4 over IP4 tunneling:
835#  GRE and MOBILE, as specified in the RFC1701 and RFC2004.
836#  The XBONEHACK option allows the same pair of addresses to be configured on
837#  multiple gif interfaces.
838device		gif
839device		gre
840options 	XBONEHACK
841
842#  The `faith' device captures packets sent to it and diverts them
843#  to the IPv4/IPv6 translation daemon.
844#  The `stf' device implements 6to4 encapsulation.
845device		faith
846device		stf
847
848#  The `ef' device provides support for multiple ethernet frame types
849#  specified via ETHER_* options. See ef(4) for details.
850device		ef
851options 	ETHER_II		# enable Ethernet_II frame
852options 	ETHER_8023		# enable Ethernet_802.3 (Novell) frame
853options 	ETHER_8022		# enable Ethernet_802.2 frame
854options 	ETHER_SNAP		# enable Ethernet_802.2/SNAP frame
855
856# The pf packet filter consists of three devices:
857#  The `pf' device provides /dev/pf and the firewall code itself.
858#  The `pflog' device provides the pflog0 interface which logs packets.
859#  The `pfsync' device provides the pfsync0 interface used for
860#   synchronization of firewall state tables (over the net).
861device		pf
862device		pflog
863device		pfsync
864
865# Bridge interface.
866device		if_bridge
867
868# Common Address Redundancy Protocol. See carp(4) for more details.
869device		carp
870
871# IPsec interface.
872device		enc
873
874# Link aggregation interface.
875device		lagg
876
877#
878# Internet family options:
879#
880# MROUTING enables the kernel multicast packet forwarder, which works
881# with mrouted and XORP.
882#
883# IPFIREWALL enables support for IP firewall construction, in
884# conjunction with the `ipfw' program.  IPFIREWALL_VERBOSE sends
885# logged packets to the system logger.  IPFIREWALL_VERBOSE_LIMIT
886# limits the number of times a matching entry can be logged.
887#
888# WARNING:  IPFIREWALL defaults to a policy of "deny ip from any to any"
889# and if you do not add other rules during startup to allow access,
890# YOU WILL LOCK YOURSELF OUT.  It is suggested that you set firewall_type=open
891# in /etc/rc.conf when first enabling this feature, then refining the
892# firewall rules in /etc/rc.firewall after you've tested that the new kernel
893# feature works properly.
894#
895# IPFIREWALL_DEFAULT_TO_ACCEPT causes the default rule (at boot) to
896# allow everything.  Use with care, if a cracker can crash your
897# firewall machine, they can get to your protected machines.  However,
898# if you are using it as an as-needed filter for specific problems as
899# they arise, then this may be for you.  Changing the default to 'allow'
900# means that you won't get stuck if the kernel and /sbin/ipfw binary get
901# out of sync.
902#
903# IPDIVERT enables the divert IP sockets, used by ``ipfw divert''.  It
904# depends on IPFIREWALL if compiled into the kernel.
905#
906# IPFIREWALL_FORWARD enables changing of the packet destination either
907# to do some sort of policy routing or transparent proxying.  Used by
908# ``ipfw forward''. All  redirections apply to locally generated
909# packets too.  Because of this great care is required when
910# crafting the ruleset.
911#
912# IPFIREWALL_NAT adds support for in kernel nat in ipfw, and it requires
913# LIBALIAS.
914#
915# IPSTEALTH enables code to support stealth forwarding (i.e., forwarding
916# packets without touching the TTL).  This can be useful to hide firewalls
917# from traceroute and similar tools.
918#
919# TCPDEBUG enables code which keeps traces of the TCP state machine
920# for sockets with the SO_DEBUG option set, which can then be examined
921# using the trpt(8) utility.
922#
923# RADIX_MPATH provides support for equal-cost multi-path routing.
924#
925options 	MROUTING		# Multicast routing
926options 	IPFIREWALL		#firewall
927options 	IPFIREWALL_VERBOSE	#enable logging to syslogd(8)
928options 	IPFIREWALL_VERBOSE_LIMIT=100	#limit verbosity
929options 	IPFIREWALL_DEFAULT_TO_ACCEPT	#allow everything by default
930options 	IPFIREWALL_FORWARD	#packet destination changes
931options 	IPFIREWALL_NAT		#ipfw kernel nat support
932options 	IPDIVERT		#divert sockets
933options 	IPFILTER		#ipfilter support
934options 	IPFILTER_LOG		#ipfilter logging
935options 	IPFILTER_LOOKUP		#ipfilter pools
936options 	IPFILTER_DEFAULT_BLOCK	#block all packets by default
937options 	IPSTEALTH		#support for stealth forwarding
938options 	TCPDEBUG
939options 	RADIX_MPATH
940
941# The MBUF_STRESS_TEST option enables options which create
942# various random failures / extreme cases related to mbuf
943# functions.  See mbuf(9) for a list of available test cases.
944# MBUF_PROFILING enables code to profile the mbuf chains
945# exiting the system (via participating interfaces) and
946# return a logarithmic histogram of monitored parameters
947# (e.g. packet size, wasted space, number of mbufs in chain).
948options 	MBUF_STRESS_TEST
949options 	MBUF_PROFILING
950
951# Statically link in accept filters
952options 	ACCEPT_FILTER_DATA
953options 	ACCEPT_FILTER_DNS
954options 	ACCEPT_FILTER_HTTP
955
956# TCP_SIGNATURE adds support for RFC 2385 (TCP-MD5) digests. These are
957# carried in TCP option 19. This option is commonly used to protect
958# TCP sessions (e.g. BGP) where IPSEC is not available nor desirable.
959# This is enabled on a per-socket basis using the TCP_MD5SIG socket option.
960# This requires the use of 'device crypto', 'options IPSEC'
961# or 'device cryptodev'.
962options 	TCP_SIGNATURE		#include support for RFC 2385
963
964# DUMMYNET enables the "dummynet" bandwidth limiter.  You need IPFIREWALL
965# as well.  See dummynet(4) and ipfw(8) for more info.  When you run
966# DUMMYNET it is advisable to also have at least "options HZ=1000" to achieve
967# a smooth scheduling of the traffic.
968options 	DUMMYNET
969
970# Zero copy sockets support.  This enables "zero copy" for sending and
971# receiving data via a socket.  The send side works for any type of NIC,
972# the receive side only works for NICs that support MTUs greater than the
973# page size of your architecture and that support header splitting.  See
974# zero_copy(9) for more details.
975options 	ZERO_COPY_SOCKETS
976
977#####################################################################
978# FILESYSTEM OPTIONS
979
980#
981# Only the root filesystem needs to be statically compiled or preloaded
982# as module; everything else will be automatically loaded at mount
983# time.  Some people still prefer to statically compile other
984# filesystems as well.
985#
986# NB: The PORTAL filesystem is known to be buggy, and WILL panic your
987# system if you attempt to do anything with it.  It is included here
988# as an incentive for some enterprising soul to sit down and fix it.
989# The UNION filesystem was known to be buggy in the past.  It is now
990# being actively maintained, although there are still some issues being
991# resolved.
992#
993
994# One of these is mandatory:
995options 	FFS			#Fast filesystem
996options 	NFSCLIENT		#Network File System client
997
998# The rest are optional:
999options 	CD9660			#ISO 9660 filesystem
1000options 	FDESCFS			#File descriptor filesystem
1001options 	HPFS			#OS/2 File system
1002options 	MSDOSFS			#MS DOS File System (FAT, FAT32)
1003options 	NFSSERVER		#Network File System server
1004options 	NFSLOCKD		#Network Lock Manager
1005options 	NFSCL			#experimental NFS client with NFSv4
1006options 	NFSD			#experimental NFS server with NFSv4
1007options 	KGSSAPI			#Kernel GSSAPI implementation
1008
1009# NT File System. Read-mostly, see mount_ntfs(8) for details.
1010# For a full read-write NTFS support consider sysutils/fusefs-ntfs
1011# port/package.
1012options 	NTFS
1013
1014options 	NULLFS			#NULL filesystem
1015# Broken (depends on NCP):
1016#options 	NWFS			#NetWare filesystem
1017options 	PORTALFS		#Portal filesystem
1018options 	PROCFS			#Process filesystem (requires PSEUDOFS)
1019options 	PSEUDOFS		#Pseudo-filesystem framework
1020options 	PSEUDOFS_TRACE		#Debugging support for PSEUDOFS
1021options 	SMBFS			#SMB/CIFS filesystem
1022options 	TMPFS			#Efficient memory filesystem
1023options 	UDF			#Universal Disk Format
1024options 	UNIONFS			#Union filesystem
1025# The xFS_ROOT options REQUIRE the associated ``options xFS''
1026options 	NFS_ROOT		#NFS usable as root device
1027
1028# Soft updates is a technique for improving filesystem speed and
1029# making abrupt shutdown less risky.
1030#
1031options 	SOFTUPDATES
1032
1033# Extended attributes allow additional data to be associated with files,
1034# and is used for ACLs, Capabilities, and MAC labels.
1035# See src/sys/ufs/ufs/README.extattr for more information.
1036options 	UFS_EXTATTR
1037options 	UFS_EXTATTR_AUTOSTART
1038
1039# Access Control List support for UFS filesystems.  The current ACL
1040# implementation requires extended attribute support, UFS_EXTATTR,
1041# for the underlying filesystem.
1042# See src/sys/ufs/ufs/README.acls for more information.
1043options 	UFS_ACL
1044
1045# Directory hashing improves the speed of operations on very large
1046# directories at the expense of some memory.
1047options 	UFS_DIRHASH
1048
1049# Gjournal-based UFS journaling support.
1050options 	UFS_GJOURNAL
1051
1052# Make space in the kernel for a root filesystem on a md device.
1053# Define to the number of kilobytes to reserve for the filesystem.
1054options 	MD_ROOT_SIZE=10
1055
1056# Make the md device a potential root device, either with preloaded
1057# images of type mfs_root or md_root.
1058options 	MD_ROOT
1059
1060# Disk quotas are supported when this option is enabled.
1061options 	QUOTA			#enable disk quotas
1062
1063# If you are running a machine just as a fileserver for PC and MAC
1064# users, using SAMBA or Netatalk, you may consider setting this option
1065# and keeping all those users' directories on a filesystem that is
1066# mounted with the suiddir option. This gives new files the same
1067# ownership as the directory (similar to group). It's a security hole
1068# if you let these users run programs, so confine it to file-servers
1069# (but it'll save you lots of headaches in those cases). Root owned
1070# directories are exempt and X bits are cleared. The suid bit must be
1071# set on the directory as well; see chmod(1). PC owners can't see/set
1072# ownerships so they keep getting their toes trodden on. This saves
1073# you all the support calls as the filesystem it's used on will act as
1074# they expect: "It's my dir so it must be my file".
1075#
1076options 	SUIDDIR
1077
1078# NFS options:
1079options 	NFS_MINATTRTIMO=3	# VREG attrib cache timeout in sec
1080options 	NFS_MAXATTRTIMO=60
1081options 	NFS_MINDIRATTRTIMO=30	# VDIR attrib cache timeout in sec
1082options 	NFS_MAXDIRATTRTIMO=60
1083options 	NFS_GATHERDELAY=10	# Default write gather delay (msec)
1084options 	NFS_WDELAYHASHSIZ=16	# and with this
1085options 	NFS_DEBUG		# Enable NFS Debugging
1086
1087# Coda stuff:
1088options 	CODA			#CODA filesystem.
1089device		vcoda			#coda minicache <-> venus comm.
1090# Use the old Coda 5.x venus<->kernel interface instead of the new
1091# realms-aware 6.x protocol.
1092#options 	CODA_COMPAT_5
1093
1094#
1095# Add support for the EXT2FS filesystem of Linux fame.  Be a bit
1096# careful with this - the ext2fs code has a tendency to lag behind
1097# changes and not be exercised very much, so mounting read/write could
1098# be dangerous (and even mounting read only could result in panics.)
1099#
1100options 	EXT2FS
1101
1102#
1103# Add support for the ReiserFS filesystem (used in Linux). Currently,
1104# this is limited to read-only access.
1105#
1106options 	REISERFS
1107
1108#
1109# Add support for the SGI XFS filesystem. Currently,
1110# this is limited to read-only access.
1111#
1112options 	XFS
1113
1114# Use real implementations of the aio_* system calls.  There are numerous
1115# stability and security issues in the current aio code that make it
1116# unsuitable for inclusion on machines with untrusted local users.
1117options 	VFS_AIO
1118
1119# Enable mounting of non-MPSAFE filesystems.
1120options 	VFS_ALLOW_NONMPSAFE
1121
1122# Cryptographically secure random number generator; /dev/random
1123device		random
1124
1125# The system memory devices; /dev/mem, /dev/kmem
1126device		mem
1127
1128# The kernel symbol table device; /dev/ksyms
1129device		ksyms
1130
1131# Optional character code conversion support with LIBICONV.
1132# Each option requires their base file system and LIBICONV.
1133options 	CD9660_ICONV
1134options 	MSDOSFS_ICONV
1135options 	NTFS_ICONV
1136options 	UDF_ICONV
1137
1138
1139#####################################################################
1140# POSIX P1003.1B
1141
1142# Real time extensions added in the 1993 POSIX
1143# _KPOSIX_PRIORITY_SCHEDULING: Build in _POSIX_PRIORITY_SCHEDULING
1144
1145options 	_KPOSIX_PRIORITY_SCHEDULING
1146# p1003_1b_semaphores are very experimental,
1147# user should be ready to assist in debugging if problems arise.
1148options 	P1003_1B_SEMAPHORES
1149
1150# POSIX message queue
1151options 	P1003_1B_MQUEUE
1152
1153#####################################################################
1154# SECURITY POLICY PARAMETERS
1155
1156# Support for BSM audit
1157options 	AUDIT
1158
1159# Support for Mandatory Access Control (MAC):
1160options 	MAC
1161options 	MAC_BIBA
1162options 	MAC_BSDEXTENDED
1163options 	MAC_IFOFF
1164options 	MAC_LOMAC
1165options 	MAC_MLS
1166options 	MAC_NONE
1167options 	MAC_PARTITION
1168options 	MAC_PORTACL
1169options 	MAC_SEEOTHERUIDS
1170options 	MAC_STUB
1171options 	MAC_TEST
1172
1173# Support for Capsicum
1174options 	CAPABILITIES	# fine-grained rights on file descriptors
1175options 	CAPABILITY_MODE	# sandboxes with no global namespace access
1176
1177# Support for process descriptors
1178options		PROCDESC
1179
1180
1181#####################################################################
1182# CLOCK OPTIONS
1183
1184# The granularity of operation is controlled by the kernel option HZ whose
1185# default value (1000 on most architectures) means a granularity of 1ms
1186# (1s/HZ).  Historically, the default was 100, but finer granularity is
1187# required for DUMMYNET and other systems on modern hardware.  There are
1188# reasonable arguments that HZ should, in fact, be 100 still; consider,
1189# that reducing the granularity too much might cause excessive overhead in
1190# clock interrupt processing, potentially causing ticks to be missed and thus
1191# actually reducing the accuracy of operation.
1192
1193options 	HZ=100
1194
1195# Enable support for the kernel PLL to use an external PPS signal,
1196# under supervision of [x]ntpd(8)
1197# More info in ntpd documentation: http://www.eecis.udel.edu/~ntp
1198
1199options 	PPS_SYNC
1200
1201# Enable support for generic feed-forward clocks in the kernel.
1202# The feed-forward clock support is an alternative to the feedback oriented
1203# ntpd/system clock approach, and is to be used with a feed-forward
1204# synchronization algorithm such as the RADclock:
1205# More info here: http://www.synclab.org/radclock
1206
1207options 	FFCLOCK
1208
1209
1210#####################################################################
1211# SCSI DEVICES
1212
1213# SCSI DEVICE CONFIGURATION
1214
1215# The SCSI subsystem consists of the `base' SCSI code, a number of
1216# high-level SCSI device `type' drivers, and the low-level host-adapter
1217# device drivers.  The host adapters are listed in the ISA and PCI
1218# device configuration sections below.
1219#
1220# It is possible to wire down your SCSI devices so that a given bus,
1221# target, and LUN always come on line as the same device unit.  In
1222# earlier versions the unit numbers were assigned in the order that
1223# the devices were probed on the SCSI bus.  This means that if you
1224# removed a disk drive, you may have had to rewrite your /etc/fstab
1225# file, and also that you had to be careful when adding a new disk
1226# as it may have been probed earlier and moved your device configuration
1227# around.  (See also option GEOM_VOL for a different solution to this
1228# problem.)
1229
1230# This old behavior is maintained as the default behavior.  The unit
1231# assignment begins with the first non-wired down unit for a device
1232# type.  For example, if you wire a disk as "da3" then the first
1233# non-wired disk will be assigned da4.
1234
1235# The syntax for wiring down devices is:
1236
1237hint.scbus.0.at="ahc0"
1238hint.scbus.1.at="ahc1"
1239hint.scbus.1.bus="0"
1240hint.scbus.3.at="ahc2"
1241hint.scbus.3.bus="0"
1242hint.scbus.2.at="ahc2"
1243hint.scbus.2.bus="1"
1244hint.da.0.at="scbus0"
1245hint.da.0.target="0"
1246hint.da.0.unit="0"
1247hint.da.1.at="scbus3"
1248hint.da.1.target="1"
1249hint.da.2.at="scbus2"
1250hint.da.2.target="3"
1251hint.sa.1.at="scbus1"
1252hint.sa.1.target="6"
1253
1254# "units" (SCSI logical unit number) that are not specified are
1255# treated as if specified as LUN 0.
1256
1257# All SCSI devices allocate as many units as are required.
1258
1259# The ch driver drives SCSI Media Changer ("jukebox") devices.
1260#
1261# The da driver drives SCSI Direct Access ("disk") and Optical Media
1262# ("WORM") devices.
1263#
1264# The sa driver drives SCSI Sequential Access ("tape") devices.
1265#
1266# The cd driver drives SCSI Read Only Direct Access ("cd") devices.
1267#
1268# The ses driver drives SCSI Environment Services ("ses") and
1269# SAF-TE ("SCSI Accessible Fault-Tolerant Enclosure") devices.
1270#
1271# The pt driver drives SCSI Processor devices.
1272#
1273# The sg driver provides a passthrough API that is compatible with the
1274# Linux SG driver.  It will work in conjunction with the COMPAT_LINUX
1275# option to run linux SG apps.  It can also stand on its own and provide
1276# source level API compatibility for porting apps to FreeBSD.
1277#
1278# Target Mode support is provided here but also requires that a SIM
1279# (SCSI Host Adapter Driver) provide support as well.
1280#
1281# The targ driver provides target mode support as a Processor type device.
1282# It exists to give the minimal context necessary to respond to Inquiry
1283# commands. There is a sample user application that shows how the rest
1284# of the command support might be done in /usr/share/examples/scsi_target.
1285#
1286# The targbh driver provides target mode support and exists to respond
1287# to incoming commands that do not otherwise have a logical unit assigned
1288# to them.
1289#
1290# The "unknown" device (uk? in pre-2.0.5) is now part of the base SCSI
1291# configuration as the "pass" driver.
1292
1293device		scbus		#base SCSI code
1294device		ch		#SCSI media changers
1295device		da		#SCSI direct access devices (aka disks)
1296device		sa		#SCSI tapes
1297device		cd		#SCSI CD-ROMs
1298device		ses		#Enclosure Services (SES and SAF-TE)
1299device		pt		#SCSI processor
1300device		targ		#SCSI Target Mode Code
1301device		targbh		#SCSI Target Mode Blackhole Device
1302device		pass		#CAM passthrough driver
1303device		sg		#Linux SCSI passthrough
1304device		ctl		#CAM Target Layer
1305
1306# CAM OPTIONS:
1307# debugging options:
1308# -- NOTE --  If you specify one of the bus/target/lun options, you must
1309#             specify them all!
1310# CAMDEBUG: When defined enables debugging macros
1311# CAM_DEBUG_BUS:  Debug the given bus.  Use -1 to debug all busses.
1312# CAM_DEBUG_TARGET:  Debug the given target.  Use -1 to debug all targets.
1313# CAM_DEBUG_LUN:  Debug the given lun.  Use -1 to debug all luns.
1314# CAM_DEBUG_FLAGS:  OR together CAM_DEBUG_INFO, CAM_DEBUG_TRACE,
1315#                   CAM_DEBUG_SUBTRACE, and CAM_DEBUG_CDB
1316#
1317# CAM_MAX_HIGHPOWER: Maximum number of concurrent high power (start unit) cmds
1318# SCSI_NO_SENSE_STRINGS: When defined disables sense descriptions
1319# SCSI_NO_OP_STRINGS: When defined disables opcode descriptions
1320# SCSI_DELAY: The number of MILLISECONDS to freeze the SIM (scsi adapter)
1321#             queue after a bus reset, and the number of milliseconds to
1322#             freeze the device queue after a bus device reset.  This
1323#             can be changed at boot and runtime with the
1324#             kern.cam.scsi_delay tunable/sysctl.
1325options 	CAMDEBUG
1326options 	CAM_DEBUG_BUS=-1
1327options 	CAM_DEBUG_TARGET=-1
1328options 	CAM_DEBUG_LUN=-1
1329options 	CAM_DEBUG_FLAGS=(CAM_DEBUG_INFO|CAM_DEBUG_TRACE|CAM_DEBUG_CDB)
1330options 	CAM_MAX_HIGHPOWER=4
1331options 	SCSI_NO_SENSE_STRINGS
1332options 	SCSI_NO_OP_STRINGS
1333options 	SCSI_DELAY=5000	# Be pessimistic about Joe SCSI device
1334
1335# Options for the CAM CDROM driver:
1336# CHANGER_MIN_BUSY_SECONDS: Guaranteed minimum time quantum for a changer LUN
1337# CHANGER_MAX_BUSY_SECONDS: Maximum time quantum per changer LUN, only
1338#                           enforced if there is I/O waiting for another LUN
1339# The compiled in defaults for these variables are 2 and 10 seconds,
1340# respectively.
1341#
1342# These can also be changed on the fly with the following sysctl variables:
1343# kern.cam.cd.changer.min_busy_seconds
1344# kern.cam.cd.changer.max_busy_seconds
1345#
1346options 	CHANGER_MIN_BUSY_SECONDS=2
1347options 	CHANGER_MAX_BUSY_SECONDS=10
1348
1349# Options for the CAM sequential access driver:
1350# SA_IO_TIMEOUT: Timeout for read/write/wfm  operations, in minutes
1351# SA_SPACE_TIMEOUT: Timeout for space operations, in minutes
1352# SA_REWIND_TIMEOUT: Timeout for rewind operations, in minutes
1353# SA_ERASE_TIMEOUT: Timeout for erase operations, in minutes
1354# SA_1FM_AT_EOD: Default to model which only has a default one filemark at EOT.
1355options 	SA_IO_TIMEOUT=4
1356options 	SA_SPACE_TIMEOUT=60
1357options 	SA_REWIND_TIMEOUT=(2*60)
1358options 	SA_ERASE_TIMEOUT=(4*60)
1359options 	SA_1FM_AT_EOD
1360
1361# Optional timeout for the CAM processor target (pt) device
1362# This is specified in seconds.  The default is 60 seconds.
1363options 	SCSI_PT_DEFAULT_TIMEOUT=60
1364
1365# Optional enable of doing SES passthrough on other devices (e.g., disks)
1366#
1367# Normally disabled because a lot of newer SCSI disks report themselves
1368# as having SES capabilities, but this can then clot up attempts to build
1369# a topology with the SES device that's on the box these drives are in....
1370options 	SES_ENABLE_PASSTHROUGH
1371
1372
1373#####################################################################
1374# MISCELLANEOUS DEVICES AND OPTIONS
1375
1376device		pty		#BSD-style compatibility pseudo ttys
1377device		nmdm		#back-to-back tty devices
1378device		md		#Memory/malloc disk
1379device		snp		#Snoop device - to look at pty/vty/etc..
1380device		ccd		#Concatenated disk driver
1381device		firmware	#firmware(9) support
1382
1383# Kernel side iconv library
1384options 	LIBICONV
1385
1386# Size of the kernel message buffer.  Should be N * pagesize.
1387options 	MSGBUF_SIZE=40960
1388
1389
1390#####################################################################
1391# HARDWARE DEVICE CONFIGURATION
1392
1393# For ISA the required hints are listed.
1394# EISA, MCA, PCI, CardBus, SD/MMC and pccard are self identifying buses, so
1395# no hints are needed.
1396
1397#
1398# Mandatory devices:
1399#
1400
1401# These options are valid for other keyboard drivers as well.
1402options 	KBD_DISABLE_KEYMAP_LOAD	# refuse to load a keymap
1403options 	KBD_INSTALL_CDEV	# install a CDEV entry in /dev
1404
1405options 	FB_DEBUG		# Frame buffer debugging
1406
1407device		splash			# Splash screen and screen saver support
1408
1409# Various screen savers.
1410device		blank_saver
1411device		daemon_saver
1412device		dragon_saver
1413device		fade_saver
1414device		fire_saver
1415device		green_saver
1416device		logo_saver
1417device		rain_saver
1418device		snake_saver
1419device		star_saver
1420device		warp_saver
1421
1422# The syscons console driver (SCO color console compatible).
1423device		sc
1424hint.sc.0.at="isa"
1425options 	MAXCONS=16		# number of virtual consoles
1426options 	SC_ALT_MOUSE_IMAGE	# simplified mouse cursor in text mode
1427options 	SC_DFLT_FONT		# compile font in
1428makeoptions	SC_DFLT_FONT=cp850
1429options 	SC_DISABLE_KDBKEY	# disable `debug' key
1430options 	SC_DISABLE_REBOOT	# disable reboot key sequence
1431options 	SC_HISTORY_SIZE=200	# number of history buffer lines
1432options 	SC_MOUSE_CHAR=0x3	# char code for text mode mouse cursor
1433options 	SC_PIXEL_MODE		# add support for the raster text mode
1434
1435# The following options will let you change the default colors of syscons.
1436options 	SC_NORM_ATTR=(FG_GREEN|BG_BLACK)
1437options 	SC_NORM_REV_ATTR=(FG_YELLOW|BG_GREEN)
1438options 	SC_KERNEL_CONS_ATTR=(FG_RED|BG_BLACK)
1439options 	SC_KERNEL_CONS_REV_ATTR=(FG_BLACK|BG_RED)
1440
1441# The following options will let you change the default behavior of
1442# cut-n-paste feature
1443options 	SC_CUT_SPACES2TABS	# convert leading spaces into tabs
1444options 	SC_CUT_SEPCHARS=\"x09\"	# set of characters that delimit words
1445					# (default is single space - \"x20\")
1446
1447# If you have a two button mouse, you may want to add the following option
1448# to use the right button of the mouse to paste text.
1449options 	SC_TWOBUTTON_MOUSE
1450
1451# You can selectively disable features in syscons.
1452options 	SC_NO_CUTPASTE
1453options 	SC_NO_FONT_LOADING
1454options 	SC_NO_HISTORY
1455options 	SC_NO_MODE_CHANGE
1456options 	SC_NO_SYSMOUSE
1457options 	SC_NO_SUSPEND_VTYSWITCH
1458
1459# `flags' for sc
1460#	0x80	Put the video card in the VESA 800x600 dots, 16 color mode
1461#	0x100	Probe for a keyboard device periodically if one is not present
1462
1463# Enable experimental features of the syscons terminal emulator (teken).
1464options 	TEKEN_CONS25		# cons25-style terminal emulation
1465options 	TEKEN_UTF8		# UTF-8 output handling
1466
1467#
1468# Optional devices:
1469#
1470
1471#
1472# SCSI host adapters:
1473#
1474# adv: All Narrow SCSI bus AdvanSys controllers.
1475# adw: Second Generation AdvanSys controllers including the ADV940UW.
1476# aha: Adaptec 154x/1535/1640
1477# ahb: Adaptec 174x EISA controllers
1478# ahc: Adaptec 274x/284x/2910/293x/294x/394x/3950x/3960x/398X/4944/
1479#      19160x/29160x, aic7770/aic78xx
1480# ahd: Adaptec 29320/39320 Controllers.
1481# aic: Adaptec 6260/6360, APA-1460 (PC Card), NEC PC9801-100 (C-BUS)
1482# bt:  Most Buslogic controllers: including BT-445, BT-54x, BT-64x, BT-74x,
1483#      BT-75x, BT-946, BT-948, BT-956, BT-958, SDC3211B, SDC3211F, SDC3222F
1484# esp: Emulex ESP, NCR 53C9x and QLogic FAS families based controllers
1485#      including the AMD Am53C974 (found on devices such as the Tekram
1486#      DC-390(T)) and the Sun ESP and FAS families of controllers
1487# isp: Qlogic ISP 1020, 1040 and 1040B PCI SCSI host adapters,
1488#      ISP 1240 Dual Ultra SCSI, ISP 1080 and 1280 (Dual) Ultra2,
1489#      ISP 12160 Ultra3 SCSI,
1490#      Qlogic ISP 2100 and ISP 2200 1Gb Fibre Channel host adapters.
1491#      Qlogic ISP 2300 and ISP 2312 2Gb Fibre Channel host adapters.
1492#      Qlogic ISP 2322 and ISP 6322 2Gb Fibre Channel host adapters.
1493# ispfw: Firmware module for Qlogic host adapters
1494# mpt: LSI-Logic MPT/Fusion 53c1020 or 53c1030 Ultra4
1495#      or FC9x9 Fibre Channel host adapters.
1496# ncr: NCR 53C810, 53C825 self-contained SCSI host adapters.
1497# sym: Symbios/Logic 53C8XX family of PCI-SCSI I/O processors:
1498#      53C810, 53C810A, 53C815, 53C825,  53C825A, 53C860, 53C875,
1499#      53C876, 53C885,  53C895, 53C895A, 53C896,  53C897, 53C1510D,
1500#      53C1010-33, 53C1010-66.
1501# trm: Tekram DC395U/UW/F DC315U adapters.
1502# wds: WD7000
1503
1504#
1505# Note that the order is important in order for Buslogic ISA/EISA cards to be
1506# probed correctly.
1507#
1508device		bt
1509hint.bt.0.at="isa"
1510hint.bt.0.port="0x330"
1511device		adv
1512hint.adv.0.at="isa"
1513device		adw
1514device		aha
1515hint.aha.0.at="isa"
1516device		aic
1517hint.aic.0.at="isa"
1518device		ahb
1519device		ahc
1520device		ahd
1521device		esp
1522device		iscsi_initiator
1523device		isp
1524hint.isp.0.disable="1"
1525hint.isp.0.role="3"
1526hint.isp.0.prefer_iomap="1"
1527hint.isp.0.prefer_memmap="1"
1528hint.isp.0.fwload_disable="1"
1529hint.isp.0.ignore_nvram="1"
1530hint.isp.0.fullduplex="1"
1531hint.isp.0.topology="lport"
1532hint.isp.0.topology="nport"
1533hint.isp.0.topology="lport-only"
1534hint.isp.0.topology="nport-only"
1535# we can't get u_int64_t types, nor can we get strings if it's got
1536# a leading 0x, hence this silly dodge.
1537hint.isp.0.portwnn="w50000000aaaa0000"
1538hint.isp.0.nodewnn="w50000000aaaa0001"
1539device		ispfw
1540device		mpt
1541device		ncr
1542device		sym
1543device		trm
1544device		wds
1545hint.wds.0.at="isa"
1546hint.wds.0.port="0x350"
1547hint.wds.0.irq="11"
1548hint.wds.0.drq="6"
1549
1550# The aic7xxx driver will attempt to use memory mapped I/O for all PCI
1551# controllers that have it configured only if this option is set. Unfortunately,
1552# this doesn't work on some motherboards, which prevents it from being the
1553# default.
1554options 	AHC_ALLOW_MEMIO
1555
1556# Dump the contents of the ahc controller configuration PROM.
1557options 	AHC_DUMP_EEPROM
1558
1559# Bitmap of units to enable targetmode operations.
1560options 	AHC_TMODE_ENABLE
1561
1562# Compile in Aic7xxx Debugging code.
1563options 	AHC_DEBUG
1564
1565# Aic7xxx driver debugging options. See sys/dev/aic7xxx/aic7xxx.h
1566options 	AHC_DEBUG_OPTS
1567
1568# Print register bitfields in debug output.  Adds ~128k to driver
1569# See ahc(4).
1570options 	AHC_REG_PRETTY_PRINT
1571
1572# Compile in aic79xx debugging code.
1573options 	AHD_DEBUG
1574
1575# Aic79xx driver debugging options.  Adds ~215k to driver.  See ahd(4).
1576options 	AHD_DEBUG_OPTS=0xFFFFFFFF
1577
1578# Print human-readable register definitions when debugging
1579options 	AHD_REG_PRETTY_PRINT
1580
1581# Bitmap of units to enable targetmode operations.
1582options 	AHD_TMODE_ENABLE
1583
1584# The adw driver will attempt to use memory mapped I/O for all PCI
1585# controllers that have it configured only if this option is set.
1586options 	ADW_ALLOW_MEMIO
1587
1588# Options used in dev/iscsi (Software iSCSI stack)
1589#
1590options 	ISCSI_INITIATOR_DEBUG=9
1591
1592# Options used in dev/isp/ (Qlogic SCSI/FC driver).
1593#
1594#	ISP_TARGET_MODE		-	enable target mode operation
1595#
1596options 	ISP_TARGET_MODE=1
1597#
1598#	ISP_DEFAULT_ROLES	-	default role
1599#		none=0
1600#		target=1
1601#		initiator=2
1602#		both=3			(not supported currently)
1603#
1604#	ISP_INTERNAL_TARGET		(trivial internal disk target, for testing)
1605#
1606options 	ISP_DEFAULT_ROLES=2
1607
1608# Options used in dev/sym/ (Symbios SCSI driver).
1609#options 	SYM_SETUP_LP_PROBE_MAP	#-Low Priority Probe Map (bits)
1610					# Allows the ncr to take precedence
1611					# 1 (1<<0) -> 810a, 860
1612					# 2 (1<<1) -> 825a, 875, 885, 895
1613					# 4 (1<<2) -> 895a, 896, 1510d
1614#options 	SYM_SETUP_SCSI_DIFF	#-HVD support for 825a, 875, 885
1615					# disabled:0 (default), enabled:1
1616#options 	SYM_SETUP_PCI_PARITY	#-PCI parity checking
1617					# disabled:0, enabled:1 (default)
1618#options 	SYM_SETUP_MAX_LUN	#-Number of LUNs supported
1619					# default:8, range:[1..64]
1620
1621# The 'dpt' driver provides support for old DPT controllers (http://www.dpt.com/).
1622# These have hardware RAID-{0,1,5} support, and do multi-initiator I/O.
1623# The DPT controllers are commonly re-licensed under other brand-names -
1624# some controllers by Olivetti, Dec, HP, AT&T, SNI, AST, Alphatronic, NEC and
1625# Compaq are actually DPT controllers.
1626#
1627# See src/sys/dev/dpt for debugging and other subtle options.
1628#   DPT_MEASURE_PERFORMANCE Enables a set of (semi)invasive metrics. Various
1629#                           instruments are enabled.  The tools in
1630#                           /usr/sbin/dpt_* assume these to be enabled.
1631#   DPT_HANDLE_TIMEOUTS     Normally device timeouts are handled by the DPT.
1632#                           If you want the driver to handle timeouts, enable
1633#                           this option.  If your system is very busy, this
1634#                           option will create more trouble than solve.
1635#   DPT_TIMEOUT_FACTOR      Used to compute the excessive amount of time to
1636#                           wait when timing out with the above option.
1637#  DPT_DEBUG_xxxx           These are controllable from sys/dev/dpt/dpt.h
1638#  DPT_LOST_IRQ             When enabled, will try, once per second, to catch
1639#                           any interrupt that got lost.  Seems to help in some
1640#                           DPT-firmware/Motherboard combinations.  Minimal
1641#                           cost, great benefit.
1642#  DPT_RESET_HBA            Make "reset" actually reset the controller
1643#                           instead of fudging it.  Only enable this if you
1644#			    are 100% certain you need it.
1645
1646device		dpt
1647
1648# DPT options
1649#!CAM# options 	DPT_MEASURE_PERFORMANCE
1650#!CAM# options 	DPT_HANDLE_TIMEOUTS
1651options 	DPT_TIMEOUT_FACTOR=4
1652options 	DPT_LOST_IRQ
1653options 	DPT_RESET_HBA
1654
1655#
1656# Compaq "CISS" RAID controllers (SmartRAID 5* series)
1657# These controllers have a SCSI-like interface, and require the
1658# CAM infrastructure.
1659#
1660device		ciss
1661
1662#
1663# Intel Integrated RAID controllers.
1664# This driver was developed and is maintained by Intel.  Contacts
1665# at Intel for this driver are
1666# "Kannanthanam, Boji T" <boji.t.kannanthanam@intel.com> and
1667# "Leubner, Achim" <achim.leubner@intel.com>.
1668#
1669device		iir
1670
1671#
1672# Mylex AcceleRAID and eXtremeRAID controllers with v6 and later
1673# firmware.  These controllers have a SCSI-like interface, and require
1674# the CAM infrastructure.
1675#
1676device		mly
1677
1678#
1679# Compaq Smart RAID, Mylex DAC960 and AMI MegaRAID controllers.  Only
1680# one entry is needed; the code will find and configure all supported
1681# controllers.
1682#
1683device		ida		# Compaq Smart RAID
1684device		mlx		# Mylex DAC960
1685device		amr		# AMI MegaRAID
1686device		amrp		# SCSI Passthrough interface (optional, CAM req.)
1687device		mfi		# LSI MegaRAID SAS
1688device		mfip		# LSI MegaRAID SAS passthrough, requires CAM
1689options 	MFI_DEBUG
1690
1691#
1692# 3ware ATA RAID
1693#
1694device		twe		# 3ware ATA RAID
1695
1696#
1697# Serial ATA host controllers:
1698#
1699# ahci: Advanced Host Controller Interface (AHCI) compatible
1700# mvs:  Marvell 88SX50XX/88SX60XX/88SX70XX/SoC controllers
1701# siis: SiliconImage SiI3124/SiI3132/SiI3531 controllers
1702#
1703# These drivers are part of cam(4) subsystem. They supersede less featured
1704# ata(4) subsystem drivers, supporting same hardware.
1705
1706device		ahci
1707device		mvs
1708device		siis
1709
1710#
1711# The 'ATA' driver supports all ATA and ATAPI devices, including PC Card
1712# devices. You only need one "device ata" for it to find all
1713# PCI and PC Card ATA/ATAPI devices on modern machines.
1714# Alternatively, individual bus and chipset drivers may be chosen by using
1715# the 'atacore' driver then selecting the drivers on a per vendor basis.
1716# For example to build a system which only supports a VIA chipset,
1717# omit 'ata' and include the 'atacore', 'atapci' and 'atavia' drivers.
1718device		ata
1719#device		atadisk		# ATA disk drives
1720#device		ataraid		# ATA RAID drives
1721#device		atapicd		# ATAPI CDROM drives
1722#device		atapifd		# ATAPI floppy drives
1723#device		atapist		# ATAPI tape drives
1724#device		atapicam	# emulate ATAPI devices as SCSI ditto via CAM
1725				# needs CAM to be present (scbus & pass)
1726
1727# Modular ATA
1728#device		atacore		# Core ATA functionality
1729#device		atacard		# CARDBUS support
1730#device		atabus		# PC98 cbus support
1731#device		ataisa		# ISA bus support
1732#device		atapci		# PCI bus support; only generic chipset support
1733
1734# PCI ATA chipsets
1735#device		ataahci		# AHCI SATA
1736#device		ataacard	# ACARD
1737#device		ataacerlabs	# Acer Labs Inc. (ALI)
1738#device		ataadaptec	# Adaptec
1739#device		ataamd		# American Micro Devices (AMD)
1740#device		ataati		# ATI
1741#device		atacenatek	# Cenatek
1742#device		atacypress	# Cypress
1743#device		atacyrix	# Cyrix
1744#device		atahighpoint	# HighPoint
1745#device		ataintel	# Intel
1746#device		ataite		# Integrated Technology Inc. (ITE)
1747#device		atajmicron	# JMicron
1748#device		atamarvell	# Marvell
1749#device		atamicron	# Micron
1750#device		atanational	# National
1751#device		atanetcell	# NetCell
1752#device		atanvidia	# nVidia
1753#device		atapromise	# Promise
1754#device		ataserverworks	# ServerWorks
1755#device		atasiliconimage	# Silicon Image Inc. (SiI) (formerly CMD)
1756#device		atasis		# Silicon Integrated Systems Corp.(SiS)
1757#device		atavia		# VIA Technologies Inc.
1758
1759#
1760# For older non-PCI, non-PnPBIOS systems, these are the hints lines to add:
1761hint.ata.0.at="isa"
1762hint.ata.0.port="0x1f0"
1763hint.ata.0.irq="14"
1764hint.ata.1.at="isa"
1765hint.ata.1.port="0x170"
1766hint.ata.1.irq="15"
1767
1768#
1769# The following options are valid on the ATA driver:
1770#
1771# ATA_STATIC_ID:	controller numbering is static ie depends on location
1772#			else the device numbers are dynamically allocated.
1773# ATA_REQUEST_TIMEOUT:	the number of seconds to wait for an ATA request
1774#			before timing out.
1775# ATA_CAM:		Turn ata(4) subsystem controller drivers into cam(4)
1776#			interface modules. This deprecates all ata(4)
1777#			peripheral device drivers (atadisk, ataraid, atapicd,
1778#			atapifd, atapist, atapicam) and all user-level APIs.
1779#			cam(4) drivers and APIs will be connected instead.
1780
1781options 	ATA_STATIC_ID
1782#options 	ATA_REQUEST_TIMEOUT=10
1783options 	ATA_CAM
1784
1785#
1786# Standard floppy disk controllers and floppy tapes, supports
1787# the Y-E DATA External FDD (PC Card)
1788#
1789device		fdc
1790hint.fdc.0.at="isa"
1791hint.fdc.0.port="0x3F0"
1792hint.fdc.0.irq="6"
1793hint.fdc.0.drq="2"
1794#
1795# FDC_DEBUG enables floppy debugging.  Since the debug output is huge, you
1796# gotta turn it actually on by setting the variable fd_debug with DDB,
1797# however.
1798options 	FDC_DEBUG
1799#
1800# Activate this line if you happen to have an Insight floppy tape.
1801# Probing them proved to be dangerous for people with floppy disks only,
1802# so it's "hidden" behind a flag:
1803#hint.fdc.0.flags="1"
1804
1805# Specify floppy devices
1806hint.fd.0.at="fdc0"
1807hint.fd.0.drive="0"
1808hint.fd.1.at="fdc0"
1809hint.fd.1.drive="1"
1810
1811#
1812# uart: newbusified driver for serial interfaces.  It consolidates the sio(4),
1813#	sab(4) and zs(4) drivers.
1814#
1815device		uart
1816
1817# Options for uart(4)
1818options 	UART_PPS_ON_CTS		# Do time pulse capturing using CTS
1819					# instead of DCD.
1820
1821# The following hint should only be used for pure ISA devices.  It is not
1822# needed otherwise.  Use of hints is strongly discouraged.
1823hint.uart.0.at="isa"
1824
1825# The following 3 hints are used when the UART is a system device (i.e., a
1826# console or debug port), but only on platforms that don't have any other
1827# means to pass the information to the kernel.  The unit number of the hint
1828# is only used to bundle the hints together.  There is no relation to the
1829# unit number of the probed UART.
1830hint.uart.0.port="0x3f8"
1831hint.uart.0.flags="0x10"
1832hint.uart.0.baud="115200"
1833
1834# `flags' for serial drivers that support consoles like sio(4) and uart(4):
1835#	0x10	enable console support for this unit.  Other console flags
1836#		(if applicable) are ignored unless this is set.  Enabling
1837#		console support does not make the unit the preferred console.
1838#		Boot with -h or set boot_serial=YES in the loader.  For sio(4)
1839#		specifically, the 0x20 flag can also be set (see above).
1840#		Currently, at most one unit can have console support; the
1841#		first one (in config file order) with this flag set is
1842#		preferred.  Setting this flag for sio0 gives the old behavior.
1843#	0x80	use this port for serial line gdb support in ddb.  Also known
1844#		as debug port.
1845#
1846
1847# Options for serial drivers that support consoles:
1848options 	BREAK_TO_DEBUGGER	# A BREAK on a serial console goes to
1849					# ddb, if available.
1850
1851# Solaris implements a new BREAK which is initiated by a character
1852# sequence CR ~ ^b which is similar to a familiar pattern used on
1853# Sun servers by the Remote Console.  There are FreeBSD extensions:
1854# CR ~ ^p requests force panic and CR ~ ^r requests a clean reboot.
1855options 	ALT_BREAK_TO_DEBUGGER
1856
1857# Serial Communications Controller
1858# Supports the Siemens SAB 82532 and Zilog Z8530 multi-channel
1859# communications controllers.
1860device		scc
1861
1862# PCI Universal Communications driver
1863# Supports various multi port PCI I/O cards.
1864device		puc
1865
1866#
1867# Network interfaces:
1868#
1869# MII bus support is required for many PCI Ethernet NICs,
1870# namely those which use MII-compliant transceivers or implement
1871# transceiver control interfaces that operate like an MII.  Adding
1872# "device miibus" to the kernel config pulls in support for the generic
1873# miibus API, the common support for for bit-bang'ing the MII and all
1874# of the PHY drivers, including a generic one for PHYs that aren't
1875# specifically handled by an individual driver.  Support for specific
1876# PHYs may be built by adding "device mii", "device mii_bitbang" if
1877# needed by the NIC driver and then adding the appropriate PHY driver.
1878device  	mii		# Minimal MII support
1879device  	mii_bitbang	# Common module for bit-bang'ing the MII
1880device  	miibus		# MII support w/ bit-bang'ing and all PHYs
1881
1882device  	acphy		# Altima Communications AC101
1883device  	amphy		# AMD AM79c873 / Davicom DM910{1,2}
1884device  	atphy		# Attansic/Atheros F1
1885device  	axphy		# Asix Semiconductor AX88x9x
1886device  	bmtphy		# Broadcom BCM5201/BCM5202 and 3Com 3c905C
1887device  	brgphy		# Broadcom BCM54xx/57xx 1000baseTX
1888device  	ciphy		# Cicada/Vitesse CS/VSC8xxx
1889device  	e1000phy	# Marvell 88E1000 1000/100/10-BT
1890device  	gentbi		# Generic 10-bit 1000BASE-{LX,SX} fiber ifaces
1891device  	icsphy		# ICS ICS1889-1893
1892device  	ip1000phy	# IC Plus IP1000A/IP1001
1893device  	jmphy		# JMicron JMP211/JMP202
1894device  	lxtphy		# Level One LXT-970
1895device  	mlphy		# Micro Linear 6692
1896device  	nsgphy		# NatSemi DP8361/DP83865/DP83891
1897device  	nsphy		# NatSemi DP83840A
1898device  	nsphyter	# NatSemi DP83843/DP83815
1899device  	pnaphy		# HomePNA
1900device  	qsphy		# Quality Semiconductor QS6612
1901device  	rdcphy		# RDC Semiconductor R6040
1902device  	rgephy		# RealTek 8169S/8110S/8211B/8211C
1903device  	rlphy		# RealTek 8139
1904device  	rlswitch	# RealTek 8305
1905device  	smcphy		# SMSC LAN91C111
1906device  	tdkphy		# TDK 89Q2120
1907device  	tlphy		# Texas Instruments ThunderLAN
1908device  	truephy		# LSI TruePHY
1909device		xmphy		# XaQti XMAC II
1910
1911# an:   Aironet 4500/4800 802.11 wireless adapters. Supports the PCMCIA,
1912#       PCI and ISA varieties.
1913# ae:   Support for gigabit ethernet adapters based on the Attansic/Atheros
1914#       L2 PCI-Express FastEthernet controllers.
1915# age:  Support for gigabit ethernet adapters based on the Attansic/Atheros
1916#       L1 PCI express gigabit ethernet controllers.
1917# alc:  Support for Atheros AR8131/AR8132 PCIe ethernet controllers.
1918# ale:  Support for Atheros AR8121/AR8113/AR8114 PCIe ethernet controllers.
1919# ath:  Atheros a/b/g WiFi adapters (requires ath_hal and wlan)
1920# bce:	Broadcom NetXtreme II (BCM5706/BCM5708) PCI/PCIe Gigabit Ethernet
1921#       adapters.
1922# bfe:	Broadcom BCM4401 Ethernet adapter.
1923# bge:	Support for gigabit ethernet adapters based on the Broadcom
1924#	BCM570x family of controllers, including the 3Com 3c996-T,
1925#	the Netgear GA302T, the SysKonnect SK-9D21 and SK-9D41, and
1926#	the embedded gigE NICs on Dell PowerEdge 2550 servers.
1927# bxe:	Broadcom NetXtreme II (BCM57710/57711/57711E) PCIe 10b Ethernet
1928#       adapters.
1929# bwi:	Broadcom BCM430* and BCM431* family of wireless adapters.
1930# bwn:	Broadcom BCM43xx family of wireless adapters.
1931# cas:	Sun Cassini/Cassini+ and National Semiconductor DP83065 Saturn
1932# cm:	Arcnet SMC COM90c26 / SMC COM90c56
1933#	(and SMC COM90c66 in '56 compatibility mode) adapters.
1934# cxgbe: Support for PCI express 10Gb/1Gb adapters based on the Chelsio T4
1935#       (Terminator 4) ASIC.
1936# dc:   Support for PCI fast ethernet adapters based on the DEC/Intel 21143
1937#       and various workalikes including:
1938#       the ADMtek AL981 Comet and AN985 Centaur, the ASIX Electronics
1939#       AX88140A and AX88141, the Davicom DM9100 and DM9102, the Lite-On
1940#       82c168 and 82c169 PNIC, the Lite-On/Macronix LC82C115 PNIC II
1941#       and the Macronix 98713/98713A/98715/98715A/98725 PMAC. This driver
1942#       replaces the old al, ax, dm, pn and mx drivers.  List of brands:
1943#       Digital DE500-BA, Kingston KNE100TX, D-Link DFE-570TX, SOHOware SFA110,
1944#       SVEC PN102-TX, CNet Pro110B, 120A, and 120B, Compex RL100-TX,
1945#       LinkSys LNE100TX, LNE100TX V2.0, Jaton XpressNet, Alfa Inc GFC2204,
1946#       KNE110TX.
1947# de:   Digital Equipment DC21040
1948# em:   Intel Pro/1000 Gigabit Ethernet 82542, 82543, 82544 based adapters.
1949# igb:  Intel Pro/1000 PCI Express Gigabit Ethernet: 82575 and later adapters.
1950# ep:   3Com 3C509, 3C529, 3C556, 3C562D, 3C563D, 3C572, 3C574X, 3C579, 3C589
1951#       and PC Card devices using these chipsets.
1952# ex:   Intel EtherExpress Pro/10 and other i82595-based adapters,
1953#       Olicom Ethernet PC Card devices.
1954# fe:   Fujitsu MB86960A/MB86965A Ethernet
1955# fea:  DEC DEFEA EISA FDDI adapter
1956# fpa:  Support for the Digital DEFPA PCI FDDI. `device fddi' is also needed.
1957# fxp:  Intel EtherExpress Pro/100B
1958#	(hint of prefer_iomap can be done to prefer I/O instead of Mem mapping)
1959# gem:  Apple GMAC/Sun ERI/Sun GEM
1960# hme:  Sun HME (Happy Meal Ethernet)
1961# jme:  JMicron JMC260 Fast Ethernet/JMC250 Gigabit Ethernet based adapters.
1962# le:   AMD Am7900 LANCE and Am79C9xx PCnet
1963# lge:	Support for PCI gigabit ethernet adapters based on the Level 1
1964#	LXT1001 NetCellerator chipset. This includes the D-Link DGE-500SX,
1965#	SMC TigerCard 1000 (SMC9462SX), and some Addtron cards.
1966# malo: Marvell Libertas wireless NICs.
1967# mwl:  Marvell 88W8363 802.11n wireless NICs.
1968# msk:	Support for gigabit ethernet adapters based on the Marvell/SysKonnect
1969#	Yukon II Gigabit controllers, including 88E8021, 88E8022, 88E8061,
1970#	88E8062, 88E8035, 88E8036, 88E8038, 88E8050, 88E8052, 88E8053,
1971#	88E8055, 88E8056 and D-Link 560T/550SX.
1972# lmc:	Support for the LMC/SBE wide-area network interface cards.
1973# my:	Myson Fast Ethernet (MTD80X, MTD89X)
1974# nge:	Support for PCI gigabit ethernet adapters based on the National
1975#	Semiconductor DP83820 and DP83821 chipset. This includes the
1976#	SMC EZ Card 1000 (SMC9462TX), D-Link DGE-500T, Asante FriendlyNet
1977#	GigaNIX 1000TA and 1000TPC, the Addtron AEG320T, the Surecom
1978#	EP-320G-TX and the Netgear GA622T.
1979# oce:	Emulex 10 Gbit adapters (OneConnect Ethernet)
1980# pcn:	Support for PCI fast ethernet adapters based on the AMD Am79c97x
1981#	PCnet-FAST, PCnet-FAST+, PCnet-FAST III, PCnet-PRO and PCnet-Home
1982#	chipsets. These can also be handled by the le(4) driver if the
1983#	pcn(4) driver is left out of the kernel. The le(4) driver does not
1984#	support the additional features like the MII bus and burst mode of
1985#	the PCnet-FAST and greater chipsets though.
1986# ral:	Ralink Technology IEEE 802.11 wireless adapter
1987# re:   RealTek 8139C+/8169/816xS/811xS/8101E PCI/PCIe Ethernet adapter
1988# rl:   Support for PCI fast ethernet adapters based on the RealTek 8129/8139
1989#       chipset.  Note that the RealTek driver defaults to using programmed
1990#       I/O to do register accesses because memory mapped mode seems to cause
1991#       severe lockups on SMP hardware.  This driver also supports the
1992#       Accton EN1207D `Cheetah' adapter, which uses a chip called
1993#       the MPX 5030/5038, which is either a RealTek in disguise or a
1994#       RealTek workalike.  Note that the D-Link DFE-530TX+ uses the RealTek
1995#       chipset and is supported by this driver, not the 'vr' driver.
1996# sf:   Support for Adaptec Duralink PCI fast ethernet adapters based on the
1997#       Adaptec AIC-6915 "starfire" controller.
1998#       This includes dual and quad port cards, as well as one 100baseFX card.
1999#       Most of these are 64-bit PCI devices, except for one single port
2000#       card which is 32-bit.
2001# sge:  Silicon Integrated Systems SiS190/191 Fast/Gigabit Ethernet adapter
2002# sis:  Support for NICs based on the Silicon Integrated Systems SiS 900,
2003#       SiS 7016 and NS DP83815 PCI fast ethernet controller chips.
2004# sk:   Support for the SysKonnect SK-984x series PCI gigabit ethernet NICs.
2005#       This includes the SK-9841 and SK-9842 single port cards (single mode
2006#       and multimode fiber) and the SK-9843 and SK-9844 dual port cards
2007#       (also single mode and multimode).
2008#       The driver will autodetect the number of ports on the card and
2009#       attach each one as a separate network interface.
2010# sn:   Support for ISA and PC Card Ethernet devices using the
2011#       SMC91C90/92/94/95 chips.
2012# ste:  Sundance Technologies ST201 PCI fast ethernet controller, includes
2013#       the D-Link DFE-550TX.
2014# stge: Support for gigabit ethernet adapters based on the Sundance/Tamarack
2015#       TC9021 family of controllers, including the Sundance ST2021/ST2023,
2016#       the Sundance/Tamarack TC9021, the D-Link DL-4000 and ASUS NX1101.
2017# ti:   Support for PCI gigabit ethernet NICs based on the Alteon Networks
2018#       Tigon 1 and Tigon 2 chipsets.  This includes the Alteon AceNIC, the
2019#       3Com 3c985, the Netgear GA620 and various others.  Note that you will
2020#       probably want to bump up kern.ipc.nmbclusters a lot to use this driver.
2021# tl:   Support for the Texas Instruments TNETE100 series 'ThunderLAN'
2022#       cards and integrated ethernet controllers.  This includes several
2023#       Compaq Netelligent 10/100 cards and the built-in ethernet controllers
2024#       in several Compaq Prosignia, Proliant and Deskpro systems.  It also
2025#       supports several Olicom 10Mbps and 10/100 boards.
2026# tx:   SMC 9432 TX, BTX and FTX cards. (SMC EtherPower II series)
2027# txp:	Support for 3Com 3cR990 cards with the "Typhoon" chipset
2028# vr:   Support for various fast ethernet adapters based on the VIA
2029#       Technologies VT3043 `Rhine I' and VT86C100A `Rhine II' chips,
2030#       including the D-Link DFE520TX and D-Link DFE530TX (see 'rl' for
2031#       DFE530TX+), the Hawking Technologies PN102TX, and the AOpen/Acer ALN-320.
2032# vte:  DM&P Vortex86 RDC R6040 Fast Ethernet
2033# vx:   3Com 3C590 and 3C595
2034# wb:   Support for fast ethernet adapters based on the Winbond W89C840F chip.
2035#       Note: this is not the same as the Winbond W89C940F, which is a
2036#       NE2000 clone.
2037# wi:   Lucent WaveLAN/IEEE 802.11 PCMCIA adapters. Note: this supports both
2038#       the PCMCIA and ISA cards: the ISA card is really a PCMCIA to ISA
2039#       bridge with a PCMCIA adapter plugged into it.
2040# xe:   Xircom/Intel EtherExpress Pro100/16 PC Card ethernet controller,
2041#       Accton Fast EtherCard-16, Compaq Netelligent 10/100 PC Card,
2042#       Toshiba 10/100 Ethernet PC Card, Xircom 16-bit Ethernet + Modem 56
2043# xl:   Support for the 3Com 3c900, 3c905, 3c905B and 3c905C (Fast)
2044#       Etherlink XL cards and integrated controllers.  This includes the
2045#       integrated 3c905B-TX chips in certain Dell Optiplex and Dell
2046#       Precision desktop machines and the integrated 3c905-TX chips
2047#       in Dell Latitude laptop docking stations.
2048#       Also supported: 3Com 3c980(C)-TX, 3Com 3cSOHO100-TX, 3Com 3c450-TX
2049
2050# Order for ISA/EISA devices is important here
2051
2052device		cm
2053hint.cm.0.at="isa"
2054hint.cm.0.port="0x2e0"
2055hint.cm.0.irq="9"
2056hint.cm.0.maddr="0xdc000"
2057device		ep
2058device		ex
2059device		fe
2060hint.fe.0.at="isa"
2061hint.fe.0.port="0x300"
2062device		fea
2063device		sn
2064hint.sn.0.at="isa"
2065hint.sn.0.port="0x300"
2066hint.sn.0.irq="10"
2067device		an
2068device		wi
2069device		xe
2070
2071# PCI Ethernet NICs that use the common MII bus controller code.
2072device		ae		# Attansic/Atheros L2 FastEthernet
2073device		age		# Attansic/Atheros L1 Gigabit Ethernet
2074device		alc		# Atheros AR8131/AR8132 Ethernet
2075device		ale		# Atheros AR8121/AR8113/AR8114 Ethernet
2076device		bce		# Broadcom BCM5706/BCM5708 Gigabit Ethernet
2077device		bfe		# Broadcom BCM440x 10/100 Ethernet
2078device		bge		# Broadcom BCM570xx Gigabit Ethernet
2079device		cas		# Sun Cassini/Cassini+ and NS DP83065 Saturn
2080device		cxgb		# Chelsio T3 10 Gigabit Ethernet
2081device		cxgb_t3fw	# Chelsio T3 10 Gigabit Ethernet firmware
2082device		dc		# DEC/Intel 21143 and various workalikes
2083device		et		# Agere ET1310 10/100/Gigabit Ethernet
2084device		fxp		# Intel EtherExpress PRO/100B (82557, 82558)
2085hint.fxp.0.prefer_iomap="0"
2086device		gem		# Apple GMAC/Sun ERI/Sun GEM
2087device		hme		# Sun HME (Happy Meal Ethernet)
2088device		jme		# JMicron JMC250 Gigabit/JMC260 Fast Ethernet
2089device		lge		# Level 1 LXT1001 gigabit Ethernet
2090device		msk		# Marvell/SysKonnect Yukon II Gigabit Ethernet
2091device		my		# Myson Fast Ethernet (MTD80X, MTD89X)
2092device		nge		# NatSemi DP83820 gigabit Ethernet
2093device		re		# RealTek 8139C+/8169/8169S/8110S
2094device		rl		# RealTek 8129/8139
2095device		pcn		# AMD Am79C97x PCI 10/100 NICs
2096device		sf		# Adaptec AIC-6915 (``Starfire'')
2097device		sge		# Silicon Integrated Systems SiS190/191
2098device		sis		# Silicon Integrated Systems SiS 900/SiS 7016
2099device		sk		# SysKonnect SK-984x & SK-982x gigabit Ethernet
2100device		ste		# Sundance ST201 (D-Link DFE-550TX)
2101device		stge		# Sundance/Tamarack TC9021 gigabit Ethernet
2102device		tl		# Texas Instruments ThunderLAN
2103device		tx		# SMC EtherPower II (83c170 ``EPIC'')
2104device		vr		# VIA Rhine, Rhine II
2105device		vte		# DM&P Vortex86 RDC R6040 Fast Ethernet
2106device		wb		# Winbond W89C840F
2107device		xl		# 3Com 3c90x (``Boomerang'', ``Cyclone'')
2108
2109# PCI Ethernet NICs.
2110device		bxe		# Broadcom BCM57710/BCM57711/BCM57711E 10Gb Ethernet
2111device		cxgbe		# Chelsio T4 10GbE PCIe adapter
2112device		de		# DEC/Intel DC21x4x (``Tulip'')
2113device		em		# Intel Pro/1000 Gigabit Ethernet
2114device		igb		# Intel Pro/1000 PCIE Gigabit Ethernet
2115device		ixgb		# Intel Pro/10Gbe PCI-X Ethernet
2116device		ixgbe		# Intel Pro/10Gbe PCIE Ethernet
2117device		le		# AMD Am7900 LANCE and Am79C9xx PCnet
2118device		mxge		# Myricom Myri-10G 10GbE NIC
2119device		nxge		# Neterion Xframe 10GbE Server/Storage Adapter
2120device		oce		# Emulex 10 GbE (OneConnect Ethernet)
2121device		ti		# Alteon Networks Tigon I/II gigabit Ethernet
2122device		txp		# 3Com 3cR990 (``Typhoon'')
2123device		vx		# 3Com 3c590, 3c595 (``Vortex'')
2124device		vxge		# Exar/Neterion XFrame 3100 10GbE
2125
2126# PCI FDDI NICs.
2127device		fpa
2128
2129# PCI WAN adapters.
2130device		lmc
2131
2132# PCI IEEE 802.11 Wireless NICs
2133device		ath		# Atheros pci/cardbus NIC's
2134device		ath_hal		# pci/cardbus chip support
2135#device		ath_ar5210	# AR5210 chips
2136#device		ath_ar5211	# AR5211 chips
2137#device		ath_ar5212	# AR5212 chips
2138#device		ath_rf2413
2139#device		ath_rf2417
2140#device		ath_rf2425
2141#device		ath_rf5111
2142#device		ath_rf5112
2143#device		ath_rf5413
2144#device		ath_ar5416	# AR5416 chips
2145options 	AH_SUPPORT_AR5416	# enable AR5416 tx/rx descriptors
2146# All of the AR5212 parts have a problem when paired with the AR71xx
2147# CPUS.  These parts have a bug that triggers a fatal bus error on the AR71xx
2148# only.  Details of the exact nature of the bug are sketchy, but some can be
2149# found at https://forum.openwrt.org/viewtopic.php?pid=70060 on pages 4, 5 and
2150# 6.  This option enables this workaround.  There is a performance penalty
2151# for this work around, but without it things don't work at all.  The DMA
2152# from the card usually bursts 128 bytes, but on the affected CPUs, only
2153# 4 are safe.
2154options	   	AH_RXCFG_SDMAMW_4BYTES
2155#device		ath_ar9160	# AR9160 chips
2156#device		ath_ar9280	# AR9280 chips
2157#device		ath_ar9285	# AR9285 chips
2158device		ath_rate_sample	# SampleRate tx rate control for ath
2159device		bwi		# Broadcom BCM430* BCM431*
2160device		bwn		# Broadcom BCM43xx
2161device		malo		# Marvell Libertas wireless NICs.
2162device		mwl		# Marvell 88W8363 802.11n wireless NICs.
2163device		ral		# Ralink Technology RT2500 wireless NICs.
2164
2165# Use sf_buf(9) interface for jumbo buffers on ti(4) controllers.
2166#options 	TI_SF_BUF_JUMBO
2167# Turn on the header splitting option for the ti(4) driver firmware.  This
2168# only works for Tigon II chips, and has no effect for Tigon I chips.
2169# This option requires the TI_SF_BUF_JUMBO option above.
2170#options 	TI_JUMBO_HDRSPLIT
2171
2172#
2173# Use header splitting feature on bce(4) adapters.
2174# This may help to reduce the amount of jumbo-sized memory buffers used.
2175#
2176options		BCE_JUMBO_HDRSPLIT
2177
2178# These two options allow manipulating the mbuf cluster size and mbuf size,
2179# respectively.  Be very careful with NIC driver modules when changing
2180# these from their default values, because that can potentially cause a
2181# mismatch between the mbuf size assumed by the kernel and the mbuf size
2182# assumed by a module.  The only driver that currently has the ability to
2183# detect a mismatch is ti(4).
2184options 	MCLSHIFT=12	# mbuf cluster shift in bits, 12 == 4KB
2185options 	MSIZE=512	# mbuf size in bytes
2186
2187#
2188# ATM related options (Cranor version)
2189# (note: this driver cannot be used with the HARP ATM stack)
2190#
2191# The `en' device provides support for Efficient Networks (ENI)
2192# ENI-155 PCI midway cards, and the Adaptec 155Mbps PCI ATM cards (ANA-59x0).
2193#
2194# The `hatm' device provides support for Fore/Marconi HE155 and HE622
2195# ATM PCI cards.
2196#
2197# The `fatm' device provides support for Fore PCA200E ATM PCI cards.
2198#
2199# The `patm' device provides support for IDT77252 based cards like
2200# ProSum's ProATM-155 and ProATM-25 and IDT's evaluation boards.
2201#
2202# atm device provides generic atm functions and is required for
2203# atm devices.
2204# NATM enables the netnatm protocol family that can be used to
2205# bypass TCP/IP.
2206#
2207# utopia provides the access to the ATM PHY chips and is required for en,
2208# hatm and fatm.
2209#
2210# the current driver supports only PVC operations (no atm-arp, no multicast).
2211# for more details, please read the original documents at
2212# http://www.ccrc.wustl.edu/pub/chuck/tech/bsdatm/bsdatm.html
2213#
2214device		atm
2215device		en
2216device		fatm			#Fore PCA200E
2217device		hatm			#Fore/Marconi HE155/622
2218device		patm			#IDT77252 cards (ProATM and IDT)
2219device		utopia			#ATM PHY driver
2220options 	NATM			#native ATM
2221
2222options 	LIBMBPOOL		#needed by patm, iatm
2223
2224#
2225# Sound drivers
2226#
2227# sound: The generic sound driver.
2228#
2229
2230device		sound
2231
2232#
2233# snd_*: Device-specific drivers.
2234#
2235# The flags of the device tell the device a bit more info about the
2236# device that normally is obtained through the PnP interface.
2237#	bit  2..0   secondary DMA channel;
2238#	bit  4      set if the board uses two dma channels;
2239#	bit 15..8   board type, overrides autodetection; leave it
2240#		    zero if don't know what to put in (and you don't,
2241#		    since this is unsupported at the moment...).
2242#
2243# snd_ad1816:		Analog Devices AD1816 ISA PnP/non-PnP.
2244# snd_als4000:		Avance Logic ALS4000 PCI.
2245# snd_atiixp:		ATI IXP 200/300/400 PCI.
2246# snd_audiocs:		Crystal Semiconductor CS4231 SBus/EBus. Only
2247#			for sparc64.
2248# snd_cmi:		CMedia CMI8338/CMI8738 PCI.
2249# snd_cs4281:		Crystal Semiconductor CS4281 PCI.
2250# snd_csa:		Crystal Semiconductor CS461x/428x PCI. (except
2251#			4281)
2252# snd_ds1:		Yamaha DS-1 PCI.
2253# snd_emu10k1:		Creative EMU10K1 PCI and EMU10K2 (Audigy) PCI.
2254# snd_emu10kx:		Creative SoundBlaster Live! and Audigy
2255# snd_envy24:		VIA Envy24 and compatible, needs snd_spicds.
2256# snd_envy24ht:		VIA Envy24HT and compatible, needs snd_spicds.
2257# snd_es137x:		Ensoniq AudioPCI ES137x PCI.
2258# snd_ess:		Ensoniq ESS ISA PnP/non-PnP, to be used in
2259#			conjunction with snd_sbc.
2260# snd_fm801:		Forte Media FM801 PCI.
2261# snd_gusc:		Gravis UltraSound ISA PnP/non-PnP.
2262# snd_hda:		Intel High Definition Audio (Controller) and
2263#			compatible.
2264# snd_hdspe:		RME HDSPe AIO and RayDAT.
2265# snd_ich:		Intel ICH AC'97 and some more audio controllers
2266#			embedded in a chipset, for example nVidia
2267#			nForce controllers.
2268# snd_maestro:		ESS Technology Maestro-1/2x PCI.
2269# snd_maestro3:		ESS Technology Maestro-3/Allegro PCI.
2270# snd_mss:		Microsoft Sound System ISA PnP/non-PnP.
2271# snd_neomagic:		Neomagic 256 AV/ZX PCI.
2272# snd_sb16:		Creative SoundBlaster16, to be used in
2273#			conjunction with snd_sbc.
2274# snd_sb8:		Creative SoundBlaster (pre-16), to be used in
2275#			conjunction with snd_sbc.
2276# snd_sbc:		Creative SoundBlaster ISA PnP/non-PnP.
2277#			Supports ESS and Avance ISA chips as well.
2278# snd_solo:		ESS Solo-1x PCI.
2279# snd_spicds:		SPI codec driver, needed by Envy24/Envy24HT drivers.
2280# snd_t4dwave:		Trident 4DWave DX/NX PCI, Sis 7018 PCI and Acer Labs
2281#			M5451 PCI.
2282# snd_uaudio:		USB audio.
2283# snd_via8233:		VIA VT8233x PCI.
2284# snd_via82c686:	VIA VT82C686A PCI.
2285# snd_vibes:		S3 Sonicvibes PCI.
2286
2287device		snd_ad1816
2288device		snd_als4000
2289device		snd_atiixp
2290#device		snd_audiocs
2291device		snd_cmi
2292device		snd_cs4281
2293device		snd_csa
2294device		snd_ds1
2295device		snd_emu10k1
2296device		snd_emu10kx
2297device		snd_envy24
2298device		snd_envy24ht
2299device		snd_es137x
2300device		snd_ess
2301device		snd_fm801
2302device		snd_gusc
2303device		snd_hda
2304device		snd_hdspe
2305device		snd_ich
2306device		snd_maestro
2307device		snd_maestro3
2308device		snd_mss
2309device		snd_neomagic
2310device		snd_sb16
2311device		snd_sb8
2312device		snd_sbc
2313device		snd_solo
2314device		snd_spicds
2315device		snd_t4dwave
2316device		snd_uaudio
2317device		snd_via8233
2318device		snd_via82c686
2319device		snd_vibes
2320
2321# For non-PnP sound cards:
2322hint.pcm.0.at="isa"
2323hint.pcm.0.irq="10"
2324hint.pcm.0.drq="1"
2325hint.pcm.0.flags="0x0"
2326hint.sbc.0.at="isa"
2327hint.sbc.0.port="0x220"
2328hint.sbc.0.irq="5"
2329hint.sbc.0.drq="1"
2330hint.sbc.0.flags="0x15"
2331hint.gusc.0.at="isa"
2332hint.gusc.0.port="0x220"
2333hint.gusc.0.irq="5"
2334hint.gusc.0.drq="1"
2335hint.gusc.0.flags="0x13"
2336
2337#
2338# Following options are intended for debugging/testing purposes:
2339#
2340# SND_DEBUG                    Enable extra debugging code that includes
2341#                              sanity checking and possible increase of
2342#                              verbosity.
2343#
2344# SND_DIAGNOSTIC               Similar in a spirit of INVARIANTS/DIAGNOSTIC,
2345#                              zero tolerance against inconsistencies.
2346#
2347# SND_FEEDER_MULTIFORMAT       By default, only 16/32 bit feeders are compiled
2348#                              in. This options enable most feeder converters
2349#                              except for 8bit. WARNING: May bloat the kernel.
2350#
2351# SND_FEEDER_FULL_MULTIFORMAT  Ditto, but includes 8bit feeders as well.
2352#
2353# SND_FEEDER_RATE_HP           (feeder_rate) High precision 64bit arithmetic
2354#                              as much as possible (the default trying to
2355#                              avoid it). Possible slowdown.
2356#
2357# SND_PCM_64                   (Only applicable for i386/32bit arch)
2358#                              Process 32bit samples through 64bit
2359#                              integer/arithmetic. Slight increase of dynamic
2360#                              range at a cost of possible slowdown.
2361#
2362# SND_OLDSTEREO                Only 2 channels are allowed, effectively
2363#                              disabling multichannel processing.
2364#
2365options		SND_DEBUG
2366options		SND_DIAGNOSTIC
2367options		SND_FEEDER_MULTIFORMAT
2368options		SND_FEEDER_FULL_MULTIFORMAT
2369options		SND_FEEDER_RATE_HP
2370options		SND_PCM_64
2371options		SND_OLDSTEREO
2372
2373#
2374# IEEE-488 hardware:
2375# pcii:		PCIIA cards (uPD7210 based isa cards)
2376# tnt4882:	National Instruments PCI-GPIB card.
2377
2378device	pcii
2379hint.pcii.0.at="isa"
2380hint.pcii.0.port="0x2e1"
2381hint.pcii.0.irq="5"
2382hint.pcii.0.drq="1"
2383
2384device	tnt4882
2385
2386#
2387# Miscellaneous hardware:
2388#
2389# scd: Sony CD-ROM using proprietary (non-ATAPI) interface
2390# mcd: Mitsumi CD-ROM using proprietary (non-ATAPI) interface
2391# bktr: Brooktree bt848/848a/849a/878/879 video capture and TV Tuner board
2392# joy: joystick (including IO DATA PCJOY PC Card joystick)
2393# cmx: OmniKey CardMan 4040 pccard smartcard reader
2394
2395# Mitsumi CD-ROM
2396device		mcd
2397hint.mcd.0.at="isa"
2398hint.mcd.0.port="0x300"
2399# for the Sony CDU31/33A CDROM
2400device		scd
2401hint.scd.0.at="isa"
2402hint.scd.0.port="0x230"
2403device		joy			# PnP aware, hints for non-PnP only
2404hint.joy.0.at="isa"
2405hint.joy.0.port="0x201"
2406device		cmx
2407
2408#
2409# The 'bktr' device is a PCI video capture device using the Brooktree
2410# bt848/bt848a/bt849a/bt878/bt879 chipset. When used with a TV Tuner it forms a
2411# TV card, e.g. Miro PC/TV, Hauppauge WinCast/TV WinTV, VideoLogic Captivator,
2412# Intel Smart Video III, AverMedia, IMS Turbo, FlyVideo.
2413#
2414# options 	OVERRIDE_CARD=xxx
2415# options 	OVERRIDE_TUNER=xxx
2416# options 	OVERRIDE_MSP=1
2417# options 	OVERRIDE_DBX=1
2418# These options can be used to override the auto detection
2419# The current values for xxx are found in src/sys/dev/bktr/bktr_card.h
2420# Using sysctl(8) run-time overrides on a per-card basis can be made
2421#
2422# options 	BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_PAL
2423# or
2424# options 	BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_NTSC
2425# Specifies the default video capture mode.
2426# This is required for Dual Crystal (28&35MHz) boards where PAL is used
2427# to prevent hangs during initialization, e.g. VideoLogic Captivator PCI.
2428#
2429# options 	BKTR_USE_PLL
2430# This is required for PAL or SECAM boards with a 28MHz crystal and no 35MHz
2431# crystal, e.g. some new Bt878 cards.
2432#
2433# options 	BKTR_GPIO_ACCESS
2434# This enables IOCTLs which give user level access to the GPIO port.
2435#
2436# options 	BKTR_NO_MSP_RESET
2437# Prevents the MSP34xx reset. Good if you initialize the MSP in another OS first
2438#
2439# options 	BKTR_430_FX_MODE
2440# Switch Bt878/879 cards into Intel 430FX chipset compatibility mode.
2441#
2442# options 	BKTR_SIS_VIA_MODE
2443# Switch Bt878/879 cards into SIS/VIA chipset compatibility mode which is
2444# needed for some old SiS and VIA chipset motherboards.
2445# This also allows Bt878/879 chips to work on old OPTi (<1997) chipset
2446# motherboards and motherboards with bad or incomplete PCI 2.1 support.
2447# As a rough guess, old = before 1998
2448#
2449# options 	BKTR_NEW_MSP34XX_DRIVER
2450# Use new, more complete initialization scheme for the msp34* soundchip.
2451# Should fix stereo autodetection if the old driver does only output
2452# mono sound.
2453
2454#
2455# options 	BKTR_USE_FREEBSD_SMBUS
2456# Compile with FreeBSD SMBus implementation
2457#
2458# Brooktree driver has been ported to the new I2C framework. Thus,
2459# you'll need to have the following 3 lines in the kernel config.
2460#     device smbus
2461#     device iicbus
2462#     device iicbb
2463#     device iicsmb
2464# The iic and smb devices are only needed if you want to control other
2465# I2C slaves connected to the external connector of some cards.
2466#
2467device		bktr
2468
2469#
2470# PC Card/PCMCIA and Cardbus
2471#
2472# cbb: pci/cardbus bridge implementing YENTA interface
2473# pccard: pccard slots
2474# cardbus: cardbus slots
2475device		cbb
2476device		pccard
2477device		cardbus
2478
2479#
2480# MMC/SD
2481#
2482# mmc 		MMC/SD bus
2483# mmcsd		MMC/SD memory card
2484# sdhci		Generic PCI SD Host Controller
2485#
2486device		mmc
2487device		mmcsd
2488device		sdhci
2489
2490#
2491# SMB bus
2492#
2493# System Management Bus support is provided by the 'smbus' device.
2494# Access to the SMBus device is via the 'smb' device (/dev/smb*),
2495# which is a child of the 'smbus' device.
2496#
2497# Supported devices:
2498# smb		standard I/O through /dev/smb*
2499#
2500# Supported SMB interfaces:
2501# iicsmb	I2C to SMB bridge with any iicbus interface
2502# bktr		brooktree848 I2C hardware interface
2503# intpm		Intel PIIX4 (82371AB, 82443MX) Power Management Unit
2504# alpm		Acer Aladdin-IV/V/Pro2 Power Management Unit
2505# ichsmb	Intel ICH SMBus controller chips (82801AA, 82801AB, 82801BA)
2506# viapm		VIA VT82C586B/596B/686A and VT8233 Power Management Unit
2507# amdpm		AMD 756 Power Management Unit
2508# amdsmb	AMD 8111 SMBus 2.0 Controller
2509# nfpm		NVIDIA nForce Power Management Unit
2510# nfsmb		NVIDIA nForce2/3/4 MCP SMBus 2.0 Controller
2511#
2512device		smbus		# Bus support, required for smb below.
2513
2514device		intpm
2515device		alpm
2516device		ichsmb
2517device		viapm
2518device		amdpm
2519device		amdsmb
2520device		nfpm
2521device		nfsmb
2522
2523device		smb
2524
2525#
2526# I2C Bus
2527#
2528# Philips i2c bus support is provided by the `iicbus' device.
2529#
2530# Supported devices:
2531# ic	i2c network interface
2532# iic	i2c standard io
2533# iicsmb i2c to smb bridge. Allow i2c i/o with smb commands.
2534# iicoc simple polling driver for OpenCores I2C controller
2535#
2536# Supported interfaces:
2537# bktr	brooktree848 I2C software interface
2538#
2539# Other:
2540# iicbb	generic I2C bit-banging code (needed by lpbb, bktr)
2541#
2542device		iicbus		# Bus support, required for ic/iic/iicsmb below.
2543device		iicbb
2544
2545device		ic
2546device		iic
2547device		iicsmb		# smb over i2c bridge
2548device		iicoc		# OpenCores I2C controller support
2549
2550# I2C peripheral devices
2551#
2552# ds133x	Dallas Semiconductor DS1337, DS1338 and DS1339 RTC
2553# ds1374	Dallas Semiconductor DS1374 RTC
2554# ds1672	Dallas Semiconductor DS1672 RTC
2555#
2556device		ds133x
2557device		ds1374
2558device		ds1672
2559
2560# Parallel-Port Bus
2561#
2562# Parallel port bus support is provided by the `ppbus' device.
2563# Multiple devices may be attached to the parallel port, devices
2564# are automatically probed and attached when found.
2565#
2566# Supported devices:
2567# vpo	Iomega Zip Drive
2568#	Requires SCSI disk support ('scbus' and 'da'), best
2569#	performance is achieved with ports in EPP 1.9 mode.
2570# lpt	Parallel Printer
2571# plip	Parallel network interface
2572# ppi	General-purpose I/O ("Geek Port") + IEEE1284 I/O
2573# pps	Pulse per second Timing Interface
2574# lpbb	Philips official parallel port I2C bit-banging interface
2575# pcfclock Parallel port clock driver.
2576#
2577# Supported interfaces:
2578# ppc	ISA-bus parallel port interfaces.
2579#
2580
2581options 	PPC_PROBE_CHIPSET # Enable chipset specific detection
2582				  # (see flags in ppc(4))
2583options 	DEBUG_1284	# IEEE1284 signaling protocol debug
2584options 	PERIPH_1284	# Makes your computer act as an IEEE1284
2585				# compliant peripheral
2586options 	DONTPROBE_1284	# Avoid boot detection of PnP parallel devices
2587options 	VP0_DEBUG	# ZIP/ZIP+ debug
2588options 	LPT_DEBUG	# Printer driver debug
2589options 	PPC_DEBUG	# Parallel chipset level debug
2590options 	PLIP_DEBUG	# Parallel network IP interface debug
2591options 	PCFCLOCK_VERBOSE         # Verbose pcfclock driver
2592options 	PCFCLOCK_MAX_RETRIES=5   # Maximum read tries (default 10)
2593
2594device		ppc
2595hint.ppc.0.at="isa"
2596hint.ppc.0.irq="7"
2597device		ppbus
2598device		vpo
2599device		lpt
2600device		plip
2601device		ppi
2602device		pps
2603device		lpbb
2604device		pcfclock
2605
2606# Kernel BOOTP support
2607
2608options 	BOOTP		# Use BOOTP to obtain IP address/hostname
2609				# Requires NFSCLIENT and NFS_ROOT
2610options 	BOOTP_NFSROOT	# NFS mount root filesystem using BOOTP info
2611options 	BOOTP_NFSV3	# Use NFS v3 to NFS mount root
2612options 	BOOTP_COMPAT	# Workaround for broken bootp daemons.
2613options 	BOOTP_WIRED_TO=fxp0 # Use interface fxp0 for BOOTP
2614options 	BOOTP_BLOCKSIZE=8192 # Override NFS block size
2615
2616#
2617# Add software watchdog routines.
2618#
2619options 	SW_WATCHDOG
2620
2621#
2622# Add the software deadlock resolver thread.
2623#
2624options 	DEADLKRES
2625
2626#
2627# Disable swapping of stack pages.  This option removes all
2628# code which actually performs swapping, so it's not possible to turn
2629# it back on at run-time.
2630#
2631# This is sometimes usable for systems which don't have any swap space
2632# (see also sysctls "vm.defer_swapspace_pageouts" and
2633# "vm.disable_swapspace_pageouts")
2634#
2635#options 	NO_SWAPPING
2636
2637# Set the number of sf_bufs to allocate. sf_bufs are virtual buffers
2638# for sendfile(2) that are used to map file VM pages, and normally
2639# default to a quantity that is roughly 16*MAXUSERS+512. You would
2640# typically want about 4 of these for each simultaneous file send.
2641#
2642options 	NSFBUFS=1024
2643
2644#
2645# Enable extra debugging code for locks.  This stores the filename and
2646# line of whatever acquired the lock in the lock itself, and changes a
2647# number of function calls to pass around the relevant data.  This is
2648# not at all useful unless you are debugging lock code.  Also note
2649# that it is likely to break e.g. fstat(1) unless you recompile your
2650# userland with -DDEBUG_LOCKS as well.
2651#
2652options 	DEBUG_LOCKS
2653
2654
2655#####################################################################
2656# USB support
2657# UHCI controller
2658device		uhci
2659# OHCI controller
2660device		ohci
2661# EHCI controller
2662device		ehci
2663# XHCI controller
2664device		xhci
2665# SL811 Controller
2666#device		slhci
2667# General USB code (mandatory for USB)
2668device		usb
2669#
2670# USB Double Bulk Pipe devices
2671device		udbp
2672# USB Fm Radio
2673device		ufm
2674# Human Interface Device (anything with buttons and dials)
2675device		uhid
2676# USB keyboard
2677device		ukbd
2678# USB printer
2679device		ulpt
2680# USB mass storage driver (Requires scbus and da)
2681device		umass
2682# USB mass storage driver for device-side mode
2683device		usfs
2684# USB support for Belkin F5U109 and Magic Control Technology serial adapters
2685device		umct
2686# USB modem support
2687device		umodem
2688# USB mouse
2689device		ums
2690# eGalax USB touch screen
2691device		uep
2692# Diamond Rio 500 MP3 player
2693device		urio
2694#
2695# USB serial support
2696device		ucom
2697# USB support for 3G modem cards by Option, Novatel, Huawei and Sierra
2698device		u3g
2699# USB support for Technologies ARK3116 based serial adapters
2700device		uark
2701# USB support for Belkin F5U103 and compatible serial adapters
2702device		ubsa
2703# USB support for serial adapters based on the FT8U100AX and FT8U232AM
2704device		uftdi
2705# USB support for some Windows CE based serial communication.
2706device		uipaq
2707# USB support for Prolific PL-2303 serial adapters
2708device		uplcom
2709# USB support for Silicon Laboratories CP2101/CP2102 based USB serial adapters
2710device		uslcom
2711# USB Visor and Palm devices
2712device		uvisor
2713# USB serial support for DDI pocket's PHS
2714device		uvscom
2715#
2716# ADMtek USB ethernet. Supports the LinkSys USB100TX,
2717# the Billionton USB100, the Melco LU-ATX, the D-Link DSB-650TX
2718# and the SMC 2202USB. Also works with the ADMtek AN986 Pegasus
2719# eval board.
2720device		aue
2721
2722# ASIX Electronics AX88172 USB 2.0 ethernet driver. Used in the
2723# LinkSys USB200M and various other adapters.
2724device		axe
2725
2726#
2727# Devices which communicate using Ethernet over USB, particularly
2728# Communication Device Class (CDC) Ethernet specification. Supports
2729# Sharp Zaurus PDAs, some DOCSIS cable modems and so on.
2730device		cdce
2731#
2732# CATC USB-EL1201A USB ethernet. Supports the CATC Netmate
2733# and Netmate II, and the Belkin F5U111.
2734device		cue
2735#
2736# Kawasaki LSI ethernet. Supports the LinkSys USB10T,
2737# Entrega USB-NET-E45, Peracom Ethernet Adapter, the
2738# 3Com 3c19250, the ADS Technologies USB-10BT, the ATen UC10T,
2739# the Netgear EA101, the D-Link DSB-650, the SMC 2102USB
2740# and 2104USB, and the Corega USB-T.
2741device		kue
2742#
2743# RealTek RTL8150 USB to fast ethernet. Supports the Melco LUA-KTX
2744# and the GREEN HOUSE GH-USB100B.
2745device		rue
2746#
2747# Davicom DM9601E USB to fast ethernet. Supports the Corega FEther USB-TXC.
2748device		udav
2749#
2750# Moschip MCS7730/MCS7840 USB to fast ethernet. Supports the Sitecom LN030.
2751device		mos
2752#
2753# HSxPA devices from Option N.V
2754device		uhso
2755
2756#
2757# Ralink Technology RT2501USB/RT2601USB wireless driver
2758device		rum
2759# Ralink Technology RT2700U/RT2800U/RT3000U wireless driver
2760device		run
2761#
2762# Atheros AR5523 wireless driver
2763device		uath
2764#
2765# Conexant/Intersil PrismGT wireless driver
2766device		upgt
2767#
2768# Ralink Technology RT2500USB wireless driver
2769device		ural
2770#
2771# Realtek RTL8187B/L wireless driver
2772device		urtw
2773#
2774# ZyDas ZD1211/ZD1211B wireless driver
2775device		zyd
2776
2777#
2778# debugging options for the USB subsystem
2779#
2780options 	USB_DEBUG
2781options 	U3G_DEBUG
2782
2783# options for ukbd:
2784options 	UKBD_DFLT_KEYMAP	# specify the built-in keymap
2785makeoptions	UKBD_DFLT_KEYMAP=it.iso
2786
2787# options for uplcom:
2788options 	UPLCOM_INTR_INTERVAL=100	# interrupt pipe interval
2789						# in milliseconds
2790
2791# options for uvscom:
2792options 	UVSCOM_DEFAULT_OPKTSIZE=8	# default output packet size
2793options 	UVSCOM_INTR_INTERVAL=100	# interrupt pipe interval
2794						# in milliseconds
2795
2796#####################################################################
2797# FireWire support
2798
2799device		firewire	# FireWire bus code
2800device		sbp		# SCSI over Firewire (Requires scbus and da)
2801device		sbp_targ	# SBP-2 Target mode  (Requires scbus and targ)
2802device		fwe		# Ethernet over FireWire (non-standard!)
2803device		fwip		# IP over FireWire (RFC2734 and RFC3146)
2804
2805#####################################################################
2806# dcons support (Dumb Console Device)
2807
2808device		dcons			# dumb console driver
2809device		dcons_crom		# FireWire attachment
2810options 	DCONS_BUF_SIZE=16384	# buffer size
2811options 	DCONS_POLL_HZ=100	# polling rate
2812options 	DCONS_FORCE_CONSOLE=0	# force to be the primary console
2813options 	DCONS_FORCE_GDB=1	# force to be the gdb device
2814
2815#####################################################################
2816# crypto subsystem
2817#
2818# This is a port of the OpenBSD crypto framework.  Include this when
2819# configuring IPSEC and when you have a h/w crypto device to accelerate
2820# user applications that link to OpenSSL.
2821#
2822# Drivers are ports from OpenBSD with some simple enhancements that have
2823# been fed back to OpenBSD.
2824
2825device		crypto		# core crypto support
2826device		cryptodev	# /dev/crypto for access to h/w
2827
2828device		rndtest		# FIPS 140-2 entropy tester
2829
2830device		hifn		# Hifn 7951, 7781, etc.
2831options 	HIFN_DEBUG	# enable debugging support: hw.hifn.debug
2832options 	HIFN_RNDTEST	# enable rndtest support
2833
2834device		ubsec		# Broadcom 5501, 5601, 58xx
2835options 	UBSEC_DEBUG	# enable debugging support: hw.ubsec.debug
2836options 	UBSEC_RNDTEST	# enable rndtest support
2837
2838#####################################################################
2839
2840
2841#
2842# Embedded system options:
2843#
2844# An embedded system might want to run something other than init.
2845options 	INIT_PATH=/sbin/init:/rescue/init
2846
2847# Debug options
2848options 	BUS_DEBUG	# enable newbus debugging
2849options 	DEBUG_VFS_LOCKS	# enable VFS lock debugging
2850options 	SOCKBUF_DEBUG	# enable sockbuf last record/mb tail checking
2851
2852#
2853# Verbose SYSINIT
2854#
2855# Make the SYSINIT process performed by mi_startup() verbose.  This is very
2856# useful when porting to a new architecture.  If DDB is also enabled, this
2857# will print function names instead of addresses.
2858options 	VERBOSE_SYSINIT
2859
2860#####################################################################
2861# SYSV IPC KERNEL PARAMETERS
2862#
2863# Maximum number of System V semaphores that can be used on the system at
2864# one time.
2865options 	SEMMNI=11
2866
2867# Total number of semaphores system wide
2868options 	SEMMNS=61
2869
2870# Total number of undo structures in system
2871options 	SEMMNU=31
2872
2873# Maximum number of System V semaphores that can be used by a single process
2874# at one time.
2875options 	SEMMSL=61
2876
2877# Maximum number of operations that can be outstanding on a single System V
2878# semaphore at one time.
2879options 	SEMOPM=101
2880
2881# Maximum number of undo operations that can be outstanding on a single
2882# System V semaphore at one time.
2883options 	SEMUME=11
2884
2885# Maximum number of shared memory pages system wide.
2886options 	SHMALL=1025
2887
2888# Maximum size, in bytes, of a single System V shared memory region.
2889options 	SHMMAX=(SHMMAXPGS*PAGE_SIZE+1)
2890options 	SHMMAXPGS=1025
2891
2892# Minimum size, in bytes, of a single System V shared memory region.
2893options 	SHMMIN=2
2894
2895# Maximum number of shared memory regions that can be used on the system
2896# at one time.
2897options 	SHMMNI=33
2898
2899# Maximum number of System V shared memory regions that can be attached to
2900# a single process at one time.
2901options 	SHMSEG=9
2902
2903# Compress user core dumps.
2904options		COMPRESS_USER_CORES
2905# required to compress file output from kernel for COMPRESS_USER_CORES.
2906device		gzio
2907
2908# Set the amount of time (in seconds) the system will wait before
2909# rebooting automatically when a kernel panic occurs.  If set to (-1),
2910# the system will wait indefinitely until a key is pressed on the
2911# console.
2912options 	PANIC_REBOOT_WAIT_TIME=16
2913
2914# Attempt to bypass the buffer cache and put data directly into the
2915# userland buffer for read operation when O_DIRECT flag is set on the
2916# file.  Both offset and length of the read operation must be
2917# multiples of the physical media sector size.
2918#
2919options 	DIRECTIO
2920
2921# Specify a lower limit for the number of swap I/O buffers.  They are
2922# (among other things) used when bypassing the buffer cache due to
2923# DIRECTIO kernel option enabled and O_DIRECT flag set on file.
2924#
2925options 	NSWBUF_MIN=120
2926
2927#####################################################################
2928
2929# More undocumented options for linting.
2930# Note that documenting these is not considered an affront.
2931
2932options 	CAM_DEBUG_DELAY
2933
2934# VFS cluster debugging.
2935options 	CLUSTERDEBUG
2936
2937options 	DEBUG
2938
2939# Kernel filelock debugging.
2940options 	LOCKF_DEBUG
2941
2942# System V compatible message queues
2943# Please note that the values provided here are used to test kernel
2944# building.  The defaults in the sources provide almost the same numbers.
2945# MSGSSZ must be a power of 2 between 8 and 1024.
2946options 	MSGMNB=2049	# Max number of chars in queue
2947options 	MSGMNI=41	# Max number of message queue identifiers
2948options 	MSGSEG=2049	# Max number of message segments
2949options 	MSGSSZ=16	# Size of a message segment
2950options 	MSGTQL=41	# Max number of messages in system
2951
2952options 	NBUF=512	# Number of buffer headers
2953
2954options 	SCSI_NCR_DEBUG
2955options 	SCSI_NCR_MAX_SYNC=10000
2956options 	SCSI_NCR_MAX_WIDE=1
2957options 	SCSI_NCR_MYADDR=7
2958
2959options 	SC_DEBUG_LEVEL=5	# Syscons debug level
2960options 	SC_RENDER_DEBUG	# syscons rendering debugging
2961
2962options 	VFS_BIO_DEBUG	# VFS buffer I/O debugging
2963
2964options 	KSTACK_MAX_PAGES=32 # Maximum pages to give the kernel stack
2965
2966# Adaptec Array Controller driver options
2967options 	AAC_DEBUG	# Debugging levels:
2968				# 0 - quiet, only emit warnings
2969				# 1 - noisy, emit major function
2970				#     points and things done
2971				# 2 - extremely noisy, emit trace
2972				#     items in loops, etc.
2973
2974# Resource Accounting
2975options 	RACCT
2976
2977# Resource Limits
2978options 	RCTL
2979
2980# Yet more undocumented options for linting.
2981# BKTR_ALLOC_PAGES has no effect except to cause warnings, and
2982# BROOKTREE_ALLOC_PAGES hasn't actually been superseded by it, since the
2983# driver still mostly spells this option BROOKTREE_ALLOC_PAGES.
2984##options 	BKTR_ALLOC_PAGES=(217*4+1)
2985options 	BROOKTREE_ALLOC_PAGES=(217*4+1)
2986options 	MAXFILES=999
2987
2988