xref: /freebsd/sys/conf/NOTES (revision 792bbaba989533a1fc93823df1720c8c4aaf0442)
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 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
142#
143# Compile-time defaults for various boot parameters
144#
145options 	BOOTVERBOSE=1
146options 	BOOTHOWTO=RB_MULTIPLE
147
148options 	GEOM_AES		# Don't use, use GEOM_BDE
149options 	GEOM_BDE		# Disk encryption.
150options 	GEOM_BSD		# BSD disklabels
151options 	GEOM_CACHE		# Disk cache.
152options 	GEOM_CONCAT		# Disk concatenation.
153options 	GEOM_ELI		# Disk encryption.
154options 	GEOM_FOX		# Redundant path mitigation
155options 	GEOM_GATE		# Userland services.
156options 	GEOM_JOURNAL		# Journaling.
157options 	GEOM_LABEL		# Providers labelization.
158options 	GEOM_LINUX_LVM		# Linux LVM2 volumes
159options 	GEOM_MAP		# Map based partitioning
160options 	GEOM_MBR		# DOS/MBR partitioning
161options 	GEOM_MIRROR		# Disk mirroring.
162options 	GEOM_MULTIPATH		# Disk multipath
163options 	GEOM_NOP		# Test class.
164options 	GEOM_PART_APM		# Apple partitioning
165options 	GEOM_PART_BSD		# BSD disklabel
166options 	GEOM_PART_BSD64		# BSD disklabel64
167options 	GEOM_PART_EBR		# Extended Boot Records
168options 	GEOM_PART_EBR_COMPAT	# Backward compatible partition names
169options 	GEOM_PART_GPT		# GPT partitioning
170options 	GEOM_PART_LDM		# Logical Disk Manager
171options 	GEOM_PART_MBR		# MBR partitioning
172options 	GEOM_PART_PC98		# PC-9800 disk partitioning
173options 	GEOM_PART_VTOC8		# SMI VTOC8 disk label
174options 	GEOM_PC98		# NEC PC9800 partitioning
175options 	GEOM_RAID		# Soft RAID functionality.
176options 	GEOM_RAID3		# RAID3 functionality.
177options 	GEOM_SHSEC		# Shared secret.
178options 	GEOM_STRIPE		# Disk striping.
179options 	GEOM_SUNLABEL		# Sun/Solaris partitioning
180options 	GEOM_UZIP		# Read-only compressed disks
181options 	GEOM_VINUM		# Vinum logical volume manager
182options 	GEOM_VIRSTOR		# Virtual storage.
183options 	GEOM_VOL		# Volume names from UFS superblock
184options 	GEOM_ZERO		# Performance testing helper.
185
186#
187# The root device and filesystem type can be compiled in;
188# this provides a fallback option if the root device cannot
189# be correctly guessed by the bootstrap code, or an override if
190# the RB_DFLTROOT flag (-r) is specified when booting the kernel.
191#
192options 	ROOTDEVNAME=\"ufs:da0s2e\"
193
194
195#####################################################################
196# Scheduler options:
197#
198# Specifying one of SCHED_4BSD or SCHED_ULE is mandatory.  These options
199# select which scheduler is compiled in.
200#
201# SCHED_4BSD is the historical, proven, BSD scheduler.  It has a global run
202# queue and no CPU affinity which makes it suboptimal for SMP.  It has very
203# good interactivity and priority selection.
204#
205# SCHED_ULE provides significant performance advantages over 4BSD on many
206# workloads on SMP machines.  It supports cpu-affinity, per-cpu runqueues
207# and scheduler locks.  It also has a stronger notion of interactivity
208# which leads to better responsiveness even on uniprocessor machines.  This
209# is the default scheduler.
210#
211# SCHED_STATS is a debugging option which keeps some stats in the sysctl
212# tree at 'kern.sched.stats' and is useful for debugging scheduling decisions.
213#
214options 	SCHED_4BSD
215options 	SCHED_STATS
216#options 	SCHED_ULE
217
218#####################################################################
219# SMP OPTIONS:
220#
221# SMP enables building of a Symmetric MultiProcessor Kernel.
222
223# Mandatory:
224options 	SMP			# Symmetric MultiProcessor Kernel
225
226# EARLY_AP_STARTUP releases the Application Processors earlier in the
227# kernel startup process (before devices are probed) rather than at the
228# end.  This is a temporary option for use during the transition from
229# late to early AP startup.
230options		EARLY_AP_STARTUP
231
232# MAXCPU defines the maximum number of CPUs that can boot in the system.
233# A default value should be already present, for every architecture.
234options 	MAXCPU=32
235
236# MAXMEMDOM defines the maximum number of memory domains that can boot in the
237# system.  A default value should already be defined by every architecture.
238options 	MAXMEMDOM=2
239
240# VM_NUMA_ALLOC enables use of memory domain-aware allocation in the VM
241# system.
242options 	VM_NUMA_ALLOC
243
244# DEVICE_NUMA enables reporting of domain affinity of I/O devices via
245# bus_get_domain(), etc.
246options 	DEVICE_NUMA
247
248# ADAPTIVE_MUTEXES changes the behavior of blocking mutexes to spin
249# if the thread that currently owns the mutex is executing on another
250# CPU.  This behavior is enabled by default, so this option can be used
251# to disable it.
252options 	NO_ADAPTIVE_MUTEXES
253
254# ADAPTIVE_RWLOCKS changes the behavior of reader/writer locks to spin
255# if the thread that currently owns the rwlock is executing on another
256# CPU.  This behavior is enabled by default, so this option can be used
257# to disable it.
258options 	NO_ADAPTIVE_RWLOCKS
259
260# ADAPTIVE_SX changes the behavior of sx locks to spin if the thread that
261# currently owns the sx lock is executing on another CPU.
262# This behavior is enabled by default, so this option can be used to
263# disable it.
264options 	NO_ADAPTIVE_SX
265
266# MUTEX_NOINLINE forces mutex operations to call functions to perform each
267# operation rather than inlining the simple cases.  This can be used to
268# shrink the size of the kernel text segment.  Note that this behavior is
269# already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
270# and WITNESS options.
271options 	MUTEX_NOINLINE
272
273# RWLOCK_NOINLINE forces rwlock operations to call functions to perform each
274# operation rather than inlining the simple cases.  This can be used to
275# shrink the size of the kernel text segment.  Note that this behavior is
276# already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
277# and WITNESS options.
278options 	RWLOCK_NOINLINE
279
280# SX_NOINLINE forces sx lock operations to call functions to perform each
281# operation rather than inlining the simple cases.  This can be used to
282# shrink the size of the kernel text segment.  Note that this behavior is
283# already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
284# and WITNESS options.
285options 	SX_NOINLINE
286
287# SMP Debugging Options:
288#
289# CALLOUT_PROFILING enables rudimentary profiling of the callwheel data
290#	  structure used as backend in callout(9).
291# PREEMPTION allows the threads that are in the kernel to be preempted by
292#	  higher priority [interrupt] threads.  It helps with interactivity
293#	  and allows interrupt threads to run sooner rather than waiting.
294#	  WARNING! Only tested on amd64 and i386.
295# FULL_PREEMPTION instructs the kernel to preempt non-realtime kernel
296#	  threads.  Its sole use is to expose race conditions and other
297#	  bugs during development.  Enabling this option will reduce
298#	  performance and increase the frequency of kernel panics by
299#	  design.  If you aren't sure that you need it then you don't.
300#	  Relies on the PREEMPTION option.  DON'T TURN THIS ON.
301# SLEEPQUEUE_PROFILING enables rudimentary profiling of the hash table
302#	  used to hold active sleep queues as well as sleep wait message
303#	  frequency.
304# TURNSTILE_PROFILING enables rudimentary profiling of the hash table
305#	  used to hold active lock queues.
306# UMTX_PROFILING enables rudimentary profiling of the hash table used
307	  to hold active lock queues.
308# WITNESS enables the witness code which detects deadlocks and cycles
309#         during locking operations.
310# WITNESS_KDB causes the witness code to drop into the kernel debugger if
311#	  a lock hierarchy violation occurs or if locks are held when going to
312#	  sleep.
313# WITNESS_SKIPSPIN disables the witness checks on spin mutexes.
314options 	PREEMPTION
315options 	FULL_PREEMPTION
316options 	WITNESS
317options 	WITNESS_KDB
318options 	WITNESS_SKIPSPIN
319
320# LOCK_PROFILING - Profiling locks.  See LOCK_PROFILING(9) for details.
321options 	LOCK_PROFILING
322# Set the number of buffers and the hash size.  The hash size MUST be larger
323# than the number of buffers.  Hash size should be prime.
324options 	MPROF_BUFFERS="1536"
325options 	MPROF_HASH_SIZE="1543"
326
327# Profiling for the callout(9) backend.
328options 	CALLOUT_PROFILING
329
330# Profiling for internal hash tables.
331options 	SLEEPQUEUE_PROFILING
332options 	TURNSTILE_PROFILING
333options 	UMTX_PROFILING
334
335
336#####################################################################
337# COMPATIBILITY OPTIONS
338
339#
340# Implement system calls compatible with 4.3BSD and older versions of
341# FreeBSD.  You probably do NOT want to remove this as much current code
342# still relies on the 4.3 emulation.  Note that some architectures that
343# are supported by FreeBSD do not include support for certain important
344# aspects of this compatibility option, namely those related to the
345# signal delivery mechanism.
346#
347options 	COMPAT_43
348
349# Old tty interface.
350options 	COMPAT_43TTY
351
352# Note that as a general rule, COMPAT_FREEBSD<n> depends on
353# COMPAT_FREEBSD<n+1>, COMPAT_FREEBSD<n+2>, etc.
354
355# Enable FreeBSD4 compatibility syscalls
356options 	COMPAT_FREEBSD4
357
358# Enable FreeBSD5 compatibility syscalls
359options 	COMPAT_FREEBSD5
360
361# Enable FreeBSD6 compatibility syscalls
362options 	COMPAT_FREEBSD6
363
364# Enable FreeBSD7 compatibility syscalls
365options 	COMPAT_FREEBSD7
366
367# Enable FreeBSD9 compatibility syscalls
368options 	COMPAT_FREEBSD9
369
370# Enable FreeBSD10 compatibility syscalls
371options 	COMPAT_FREEBSD10
372
373# Enable FreeBSD11 compatibility syscalls
374options 	COMPAT_FREEBSD11
375
376# Enable Linux Kernel Programming Interface
377options 	COMPAT_LINUXKPI
378
379#
380# These three options provide support for System V Interface
381# Definition-style interprocess communication, in the form of shared
382# memory, semaphores, and message queues, respectively.
383#
384options 	SYSVSHM
385options 	SYSVSEM
386options 	SYSVMSG
387
388
389#####################################################################
390# DEBUGGING OPTIONS
391
392#
393# Compile with kernel debugger related code.
394#
395options 	KDB
396
397#
398# Print a stack trace of the current thread on the console for a panic.
399#
400options 	KDB_TRACE
401
402#
403# Don't enter the debugger for a panic. Intended for unattended operation
404# where you may want to enter the debugger from the console, but still want
405# the machine to recover from a panic.
406#
407options 	KDB_UNATTENDED
408
409#
410# Enable the ddb debugger backend.
411#
412options 	DDB
413
414#
415# Print the numerical value of symbols in addition to the symbolic
416# representation.
417#
418options 	DDB_NUMSYM
419
420#
421# Enable the remote gdb debugger backend.
422#
423options 	GDB
424
425#
426# SYSCTL_DEBUG enables a 'sysctl' debug tree that can be used to dump the
427# contents of the registered sysctl nodes on the console.  It is disabled by
428# default because it generates excessively verbose console output that can
429# interfere with serial console operation.
430#
431options 	SYSCTL_DEBUG
432
433#
434# Enable textdump by default, this disables kernel core dumps.
435#
436options		TEXTDUMP_PREFERRED
437
438#
439# Enable extra debug messages while performing textdumps.
440#
441options		TEXTDUMP_VERBOSE
442
443#
444# NO_SYSCTL_DESCR omits the sysctl node descriptions to save space in the
445# resulting kernel.
446options		NO_SYSCTL_DESCR
447
448#
449# MALLOC_DEBUG_MAXZONES enables multiple uma zones for malloc(9)
450# allocations that are smaller than a page.  The purpose is to isolate
451# different malloc types into hash classes, so that any buffer
452# overruns or use-after-free will usually only affect memory from
453# malloc types in that hash class.  This is purely a debugging tool;
454# by varying the hash function and tracking which hash class was
455# corrupted, the intersection of the hash classes from each instance
456# will point to a single malloc type that is being misused.  At this
457# point inspection or memguard(9) can be used to catch the offending
458# code.
459#
460options 	MALLOC_DEBUG_MAXZONES=8
461
462#
463# DEBUG_MEMGUARD builds and enables memguard(9), a replacement allocator
464# for the kernel used to detect modify-after-free scenarios.  See the
465# memguard(9) man page for more information on usage.
466#
467options 	DEBUG_MEMGUARD
468
469#
470# DEBUG_REDZONE enables buffer underflows and buffer overflows detection for
471# malloc(9).
472#
473options 	DEBUG_REDZONE
474
475#
476# EARLY_PRINTF enables support for calling a special printf (eprintf)
477# very early in the kernel (before cn_init() has been called).  This
478# should only be used for debugging purposes early in boot.  Normally,
479# it is not defined.  It is commented out here because this feature
480# isn't generally available. And the required eputc() isn't defined.
481#
482#options	EARLY_PRINTF
483
484#
485# KTRACE enables the system-call tracing facility ktrace(2).  To be more
486# SMP-friendly, KTRACE uses a worker thread to process most trace events
487# asynchronously to the thread generating the event.  This requires a
488# pre-allocated store of objects representing trace events.  The
489# KTRACE_REQUEST_POOL option specifies the initial size of this store.
490# The size of the pool can be adjusted both at boottime and runtime via
491# the kern.ktrace_request_pool tunable and sysctl.
492#
493options 	KTRACE			#kernel tracing
494options 	KTRACE_REQUEST_POOL=101
495
496#
497# KTR is a kernel tracing facility imported from BSD/OS.  It is
498# enabled with the KTR option.  KTR_ENTRIES defines the number of
499# entries in the circular trace buffer; it may be an arbitrary number.
500# KTR_BOOT_ENTRIES defines the number of entries during the early boot,
501# before malloc(9) is functional.
502# KTR_COMPILE defines the mask of events to compile into the kernel as
503# defined by the KTR_* constants in <sys/ktr.h>.  KTR_MASK defines the
504# initial value of the ktr_mask variable which determines at runtime
505# what events to trace.  KTR_CPUMASK determines which CPU's log
506# events, with bit X corresponding to CPU X.  The layout of the string
507# passed as KTR_CPUMASK must match a series of bitmasks each of them
508# separated by the "," character (ie:
509# KTR_CPUMASK=0xAF,0xFFFFFFFFFFFFFFFF).  KTR_VERBOSE enables
510# dumping of KTR events to the console by default.  This functionality
511# can be toggled via the debug.ktr_verbose sysctl and defaults to off
512# if KTR_VERBOSE is not defined.  See ktr(4) and ktrdump(8) for details.
513#
514options 	KTR
515options 	KTR_BOOT_ENTRIES=1024
516options 	KTR_ENTRIES=(128*1024)
517options 	KTR_COMPILE=(KTR_ALL)
518options 	KTR_MASK=KTR_INTR
519options 	KTR_CPUMASK=0x3
520options 	KTR_VERBOSE
521
522#
523# ALQ(9) is a facility for the asynchronous queuing of records from the kernel
524# to a vnode, and is employed by services such as ktr(4) to produce trace
525# files based on a kernel event stream.  Records are written asynchronously
526# in a worker thread.
527#
528options 	ALQ
529options 	KTR_ALQ
530
531#
532# The INVARIANTS option is used in a number of source files to enable
533# extra sanity checking of internal structures.  This support is not
534# enabled by default because of the extra time it would take to check
535# for these conditions, which can only occur as a result of
536# programming errors.
537#
538options 	INVARIANTS
539
540#
541# The INVARIANT_SUPPORT option makes us compile in support for
542# verifying some of the internal structures.  It is a prerequisite for
543# 'INVARIANTS', as enabling 'INVARIANTS' will make these functions be
544# called.  The intent is that you can set 'INVARIANTS' for single
545# source files (by changing the source file or specifying it on the
546# command line) if you have 'INVARIANT_SUPPORT' enabled.  Also, if you
547# wish to build a kernel module with 'INVARIANTS', then adding
548# 'INVARIANT_SUPPORT' to your kernel will provide all the necessary
549# infrastructure without the added overhead.
550#
551options 	INVARIANT_SUPPORT
552
553#
554# The DIAGNOSTIC option is used to enable extra debugging information
555# from some parts of the kernel.  As this makes everything more noisy,
556# it is disabled by default.
557#
558options 	DIAGNOSTIC
559
560#
561# REGRESSION causes optional kernel interfaces necessary only for regression
562# testing to be enabled.  These interfaces may constitute security risks
563# when enabled, as they permit processes to easily modify aspects of the
564# run-time environment to reproduce unlikely or unusual (possibly normally
565# impossible) scenarios.
566#
567options 	REGRESSION
568
569#
570# This option lets some drivers co-exist that can't co-exist in a running
571# system.  This is used to be able to compile all kernel code in one go for
572# quality assurance purposes (like this file, which the option takes it name
573# from.)
574#
575options 	COMPILING_LINT
576
577#
578# STACK enables the stack(9) facility, allowing the capture of kernel stack
579# for the purpose of procinfo(1), etc.  stack(9) will also be compiled in
580# automatically if DDB(4) is compiled into the kernel.
581#
582options 	STACK
583
584#
585# The NUM_CORE_FILES option specifies the limit for the number of core
586# files generated by a particular process, when the core file format
587# specifier includes the %I pattern. Since we only have 1 character for
588# the core count in the format string, meaning the range will be 0-9, the
589# maximum value allowed for this option is 10.
590# This core file limit can be adjusted at runtime via the debug.ncores
591# sysctl.
592#
593options 	NUM_CORE_FILES=5
594
595
596#####################################################################
597# PERFORMANCE MONITORING OPTIONS
598
599#
600# The hwpmc driver that allows the use of in-CPU performance monitoring
601# counters for performance monitoring.  The base kernel needs to be configured
602# with the 'options' line, while the hwpmc device can be either compiled
603# in or loaded as a loadable kernel module.
604#
605# Additional configuration options may be required on specific architectures,
606# please see hwpmc(4).
607
608device		hwpmc			# Driver (also a loadable module)
609options 	HWPMC_DEBUG
610options 	HWPMC_HOOKS		# Other necessary kernel hooks
611
612
613#####################################################################
614# NETWORKING OPTIONS
615
616#
617# Protocol families
618#
619options 	INET			#Internet communications protocols
620options 	INET6			#IPv6 communications protocols
621
622options 	ROUTETABLES=2		# allocated fibs up to 65536. default is 1.
623					# but that would be a bad idea as they are large.
624
625options 	TCP_OFFLOAD		# TCP offload support.
626
627# In order to enable IPSEC you MUST also add device crypto to
628# your kernel configuration
629options 	IPSEC			#IP security (requires device crypto)
630#options 	IPSEC_DEBUG		#debug for IP security
631#
632# Set IPSEC_NAT_T to enable NAT-Traversal support.  This enables
633# optional UDP encapsulation of ESP packets.
634#
635options		IPSEC_NAT_T		#NAT-T support, UDP encap of ESP
636
637#
638# SMB/CIFS requester
639# NETSMB enables support for SMB protocol, it requires LIBMCHAIN and LIBICONV
640# options.
641options 	NETSMB			#SMB/CIFS requester
642
643# mchain library. It can be either loaded as KLD or compiled into kernel
644options 	LIBMCHAIN
645
646# libalias library, performing NAT
647options 	LIBALIAS
648
649# flowtable cache
650options 	FLOWTABLE
651
652#
653# SCTP is a NEW transport protocol defined by
654# RFC2960 updated by RFC3309 and RFC3758.. and
655# soon to have a new base RFC and many many more
656# extensions. This release supports all the extensions
657# including many drafts (most about to become RFC's).
658# It is the reference implementation of SCTP
659# and is quite well tested.
660#
661# Note YOU MUST have both INET and INET6 defined.
662# You don't have to enable V6, but SCTP is
663# dual stacked and so far we have not torn apart
664# the V6 and V4.. since an association can span
665# both a V6 and V4 address at the SAME time :-)
666#
667options 	SCTP
668# There are bunches of options:
669# this one turns on all sorts of
670# nastily printing that you can
671# do. It's all controlled by a
672# bit mask (settable by socket opt and
673# by sysctl). Including will not cause
674# logging until you set the bits.. but it
675# can be quite verbose.. so without this
676# option we don't do any of the tests for
677# bits and prints.. which makes the code run
678# faster.. if you are not debugging don't use.
679options 	SCTP_DEBUG
680#
681# This option turns off the CRC32c checksum. Basically,
682# you will not be able to talk to anyone else who
683# has not done this. Its more for experimentation to
684# see how much CPU the CRC32c really takes. Most new
685# cards for TCP support checksum offload.. so this
686# option gives you a "view" into what SCTP would be
687# like with such an offload (which only exists in
688# high in iSCSI boards so far). With the new
689# splitting 8's algorithm its not as bad as it used
690# to be.. but it does speed things up try only
691# for in a captured lab environment :-)
692options 	SCTP_WITH_NO_CSUM
693#
694
695#
696# All that options after that turn on specific types of
697# logging. You can monitor CWND growth, flight size
698# and all sorts of things. Go look at the code and
699# see. I have used this to produce interesting
700# charts and graphs as well :->
701#
702# I have not yet committed the tools to get and print
703# the logs, I will do that eventually .. before then
704# if you want them send me an email rrs@freebsd.org
705# You basically must have ktr(4) enabled for these
706# and you then set the sysctl to turn on/off various
707# logging bits. Use ktrdump(8) to pull the log and run
708# it through a display program.. and graphs and other
709# things too.
710#
711options 	SCTP_LOCK_LOGGING
712options 	SCTP_MBUF_LOGGING
713options 	SCTP_MBCNT_LOGGING
714options 	SCTP_PACKET_LOGGING
715options 	SCTP_LTRACE_CHUNKS
716options 	SCTP_LTRACE_ERRORS
717
718
719# altq(9). Enable the base part of the hooks with the ALTQ option.
720# Individual disciplines must be built into the base system and can not be
721# loaded as modules at this point. ALTQ requires a stable TSC so if yours is
722# broken or changes with CPU throttling then you must also have the ALTQ_NOPCC
723# option.
724options 	ALTQ
725options 	ALTQ_CBQ	# Class Based Queueing
726options 	ALTQ_RED	# Random Early Detection
727options 	ALTQ_RIO	# RED In/Out
728options 	ALTQ_CODEL	# CoDel Active Queueing
729options 	ALTQ_HFSC	# Hierarchical Packet Scheduler
730options 	ALTQ_FAIRQ	# Fair Packet Scheduler
731options 	ALTQ_CDNR	# Traffic conditioner
732options 	ALTQ_PRIQ	# Priority Queueing
733options 	ALTQ_NOPCC	# Required if the TSC is unusable
734options 	ALTQ_DEBUG
735
736# netgraph(4). Enable the base netgraph code with the NETGRAPH option.
737# Individual node types can be enabled with the corresponding option
738# listed below; however, this is not strictly necessary as netgraph
739# will automatically load the corresponding KLD module if the node type
740# is not already compiled into the kernel. Each type below has a
741# corresponding man page, e.g., ng_async(8).
742options 	NETGRAPH		# netgraph(4) system
743options 	NETGRAPH_DEBUG		# enable extra debugging, this
744					# affects netgraph(4) and nodes
745# Node types
746options 	NETGRAPH_ASYNC
747options 	NETGRAPH_ATMLLC
748options 	NETGRAPH_ATM_ATMPIF
749options 	NETGRAPH_BLUETOOTH		# ng_bluetooth(4)
750options 	NETGRAPH_BLUETOOTH_BT3C		# ng_bt3c(4)
751options 	NETGRAPH_BLUETOOTH_HCI		# ng_hci(4)
752options 	NETGRAPH_BLUETOOTH_L2CAP	# ng_l2cap(4)
753options 	NETGRAPH_BLUETOOTH_SOCKET	# ng_btsocket(4)
754options 	NETGRAPH_BLUETOOTH_UBT		# ng_ubt(4)
755options 	NETGRAPH_BLUETOOTH_UBTBCMFW	# ubtbcmfw(4)
756options 	NETGRAPH_BPF
757options 	NETGRAPH_BRIDGE
758options 	NETGRAPH_CAR
759options 	NETGRAPH_CISCO
760options 	NETGRAPH_DEFLATE
761options 	NETGRAPH_DEVICE
762options 	NETGRAPH_ECHO
763options 	NETGRAPH_EIFACE
764options 	NETGRAPH_ETHER
765options 	NETGRAPH_FRAME_RELAY
766options 	NETGRAPH_GIF
767options 	NETGRAPH_GIF_DEMUX
768options 	NETGRAPH_HOLE
769options 	NETGRAPH_IFACE
770options 	NETGRAPH_IP_INPUT
771options 	NETGRAPH_IPFW
772options 	NETGRAPH_KSOCKET
773options 	NETGRAPH_L2TP
774options 	NETGRAPH_LMI
775# MPPC compression requires proprietary files (not included)
776#options 	NETGRAPH_MPPC_COMPRESSION
777options 	NETGRAPH_MPPC_ENCRYPTION
778options 	NETGRAPH_NETFLOW
779options 	NETGRAPH_NAT
780options 	NETGRAPH_ONE2MANY
781options 	NETGRAPH_PATCH
782options 	NETGRAPH_PIPE
783options 	NETGRAPH_PPP
784options 	NETGRAPH_PPPOE
785options 	NETGRAPH_PPTPGRE
786options 	NETGRAPH_PRED1
787options 	NETGRAPH_RFC1490
788options 	NETGRAPH_SOCKET
789options 	NETGRAPH_SPLIT
790options 	NETGRAPH_SPPP
791options 	NETGRAPH_TAG
792options 	NETGRAPH_TCPMSS
793options 	NETGRAPH_TEE
794options 	NETGRAPH_UI
795options 	NETGRAPH_VJC
796options 	NETGRAPH_VLAN
797
798# NgATM - Netgraph ATM
799options 	NGATM_ATM
800options 	NGATM_ATMBASE
801options 	NGATM_SSCOP
802options 	NGATM_SSCFU
803options 	NGATM_UNI
804options 	NGATM_CCATM
805
806device		mn	# Munich32x/Falc54 Nx64kbit/sec cards.
807
808# Network stack virtualization.
809#options	VIMAGE
810#options	VNET_DEBUG	# debug for VIMAGE
811
812#
813# Network interfaces:
814#  The `loop' device is MANDATORY when networking is enabled.
815device		loop
816
817#  The `ether' device provides generic code to handle
818#  Ethernets; it is MANDATORY when an Ethernet device driver is
819#  configured or token-ring is enabled.
820device		ether
821
822#  The `vlan' device implements the VLAN tagging of Ethernet frames
823#  according to IEEE 802.1Q.
824device		vlan
825
826# The `vxlan' device implements the VXLAN encapsulation of Ethernet
827# frames in UDP packets according to RFC7348.
828device		vxlan
829
830#  The `wlan' device provides generic code to support 802.11
831#  drivers, including host AP mode; it is MANDATORY for the wi,
832#  and ath drivers and will eventually be required by all 802.11 drivers.
833device		wlan
834options 	IEEE80211_DEBUG		#enable debugging msgs
835options 	IEEE80211_AMPDU_AGE	#age frames in AMPDU reorder q's
836options 	IEEE80211_SUPPORT_MESH	#enable 802.11s D3.0 support
837options 	IEEE80211_SUPPORT_TDMA	#enable TDMA support
838
839#  The `wlan_wep', `wlan_tkip', and `wlan_ccmp' devices provide
840#  support for WEP, TKIP, and AES-CCMP crypto protocols optionally
841#  used with 802.11 devices that depend on the `wlan' module.
842device		wlan_wep
843device		wlan_ccmp
844device		wlan_tkip
845
846#  The `wlan_xauth' device provides support for external (i.e. user-mode)
847#  authenticators for use with 802.11 drivers that use the `wlan'
848#  module and support 802.1x and/or WPA security protocols.
849device		wlan_xauth
850
851#  The `wlan_acl' device provides a MAC-based access control mechanism
852#  for use with 802.11 drivers operating in ap mode and using the
853#  `wlan' module.
854#  The 'wlan_amrr' device provides AMRR transmit rate control algorithm
855device		wlan_acl
856device		wlan_amrr
857
858# Generic TokenRing
859device		token
860
861#  The `fddi' device provides generic code to support FDDI.
862device		fddi
863
864#  The `arcnet' device provides generic code to support Arcnet.
865device		arcnet
866
867#  The `sppp' device serves a similar role for certain types
868#  of synchronous PPP links (like `cx', `ar').
869device		sppp
870
871#  The `bpf' device enables the Berkeley Packet Filter.  Be
872#  aware of the legal and administrative consequences of enabling this
873#  option.  DHCP requires bpf.
874device		bpf
875
876#  The `netmap' device implements memory-mapped access to network
877#  devices from userspace, enabling wire-speed packet capture and
878#  generation even at 10Gbit/s. Requires support in the device
879#  driver. Supported drivers are ixgbe, e1000, re.
880device		netmap
881
882#  The `disc' device implements a minimal network interface,
883#  which throws away all packets sent and never receives any.  It is
884#  included for testing and benchmarking purposes.
885device		disc
886
887# The `epair' device implements a virtual back-to-back connected Ethernet
888# like interface pair.
889device		epair
890
891#  The `edsc' device implements a minimal Ethernet interface,
892#  which discards all packets sent and receives none.
893device		edsc
894
895#  The `tap' device is a pty-like virtual Ethernet interface
896device		tap
897
898#  The `tun' device implements (user-)ppp and nos-tun(8)
899device		tun
900
901#  The `gif' device implements IPv6 over IP4 tunneling,
902#  IPv4 over IPv6 tunneling, IPv4 over IPv4 tunneling and
903#  IPv6 over IPv6 tunneling.
904#  The `gre' device implements GRE (Generic Routing Encapsulation) tunneling,
905#  as specified in the RFC 2784 and RFC 2890.
906#  The `me' device implements Minimal Encapsulation within IPv4 as
907#  specified in the RFC 2004.
908#  The XBONEHACK option allows the same pair of addresses to be configured on
909#  multiple gif interfaces.
910device		gif
911device		gre
912device		me
913options 	XBONEHACK
914
915#  The `stf' device implements 6to4 encapsulation.
916device		stf
917
918# The pf packet filter consists of three devices:
919#  The `pf' device provides /dev/pf and the firewall code itself.
920#  The `pflog' device provides the pflog0 interface which logs packets.
921#  The `pfsync' device provides the pfsync0 interface used for
922#   synchronization of firewall state tables (over the net).
923device		pf
924device		pflog
925device		pfsync
926
927# Bridge interface.
928device		if_bridge
929
930# Common Address Redundancy Protocol. See carp(4) for more details.
931device		carp
932
933# IPsec interface.
934device		enc
935
936# Link aggregation interface.
937device		lagg
938
939#
940# Internet family options:
941#
942# MROUTING enables the kernel multicast packet forwarder, which works
943# with mrouted and XORP.
944#
945# IPFIREWALL enables support for IP firewall construction, in
946# conjunction with the `ipfw' program.  IPFIREWALL_VERBOSE sends
947# logged packets to the system logger.  IPFIREWALL_VERBOSE_LIMIT
948# limits the number of times a matching entry can be logged.
949#
950# WARNING:  IPFIREWALL defaults to a policy of "deny ip from any to any"
951# and if you do not add other rules during startup to allow access,
952# YOU WILL LOCK YOURSELF OUT.  It is suggested that you set firewall_type=open
953# in /etc/rc.conf when first enabling this feature, then refining the
954# firewall rules in /etc/rc.firewall after you've tested that the new kernel
955# feature works properly.
956#
957# IPFIREWALL_DEFAULT_TO_ACCEPT causes the default rule (at boot) to
958# allow everything.  Use with care, if a cracker can crash your
959# firewall machine, they can get to your protected machines.  However,
960# if you are using it as an as-needed filter for specific problems as
961# they arise, then this may be for you.  Changing the default to 'allow'
962# means that you won't get stuck if the kernel and /sbin/ipfw binary get
963# out of sync.
964#
965# IPDIVERT enables the divert IP sockets, used by ``ipfw divert''.  It
966# depends on IPFIREWALL if compiled into the kernel.
967#
968# IPFIREWALL_NAT adds support for in kernel nat in ipfw, and it requires
969# LIBALIAS.
970#
971# IPFIREWALL_NAT64 adds support for in kernel NAT64 in ipfw.
972#
973# IPFIREWALL_NPTV6 adds support for in kernel NPTv6 in ipfw.
974#
975# IPSTEALTH enables code to support stealth forwarding (i.e., forwarding
976# packets without touching the TTL).  This can be useful to hide firewalls
977# from traceroute and similar tools.
978#
979# PF_DEFAULT_TO_DROP causes the default pf(4) rule to deny everything.
980#
981# TCPDEBUG enables code which keeps traces of the TCP state machine
982# for sockets with the SO_DEBUG option set, which can then be examined
983# using the trpt(8) utility.
984#
985# TCPPCAP enables code which keeps the last n packets sent and received
986# on a TCP socket.
987#
988# TCP_HHOOK enables the hhook(9) framework hooks for the TCP stack.
989#
990# RADIX_MPATH provides support for equal-cost multi-path routing.
991#
992options 	MROUTING		# Multicast routing
993options 	IPFIREWALL		#firewall
994options 	IPFIREWALL_VERBOSE	#enable logging to syslogd(8)
995options 	IPFIREWALL_VERBOSE_LIMIT=100	#limit verbosity
996options 	IPFIREWALL_DEFAULT_TO_ACCEPT	#allow everything by default
997options 	IPFIREWALL_NAT		#ipfw kernel nat support
998options 	IPFIREWALL_NAT64	#ipfw kernel NAT64 support
999options 	IPFIREWALL_NPTV6	#ipfw kernel IPv6 NPT support
1000options 	IPDIVERT		#divert sockets
1001options 	IPFILTER		#ipfilter support
1002options 	IPFILTER_LOG		#ipfilter logging
1003options 	IPFILTER_LOOKUP		#ipfilter pools
1004options 	IPFILTER_DEFAULT_BLOCK	#block all packets by default
1005options 	IPSTEALTH		#support for stealth forwarding
1006options 	PF_DEFAULT_TO_DROP	#drop everything by default
1007options 	TCPDEBUG
1008options 	TCPPCAP
1009options 	TCP_HHOOK
1010options 	RADIX_MPATH
1011
1012# The MBUF_STRESS_TEST option enables options which create
1013# various random failures / extreme cases related to mbuf
1014# functions.  See mbuf(9) for a list of available test cases.
1015# MBUF_PROFILING enables code to profile the mbuf chains
1016# exiting the system (via participating interfaces) and
1017# return a logarithmic histogram of monitored parameters
1018# (e.g. packet size, wasted space, number of mbufs in chain).
1019options 	MBUF_STRESS_TEST
1020options 	MBUF_PROFILING
1021
1022# Statically link in accept filters
1023options 	ACCEPT_FILTER_DATA
1024options 	ACCEPT_FILTER_DNS
1025options 	ACCEPT_FILTER_HTTP
1026
1027# TCP_SIGNATURE adds support for RFC 2385 (TCP-MD5) digests. These are
1028# carried in TCP option 19. This option is commonly used to protect
1029# TCP sessions (e.g. BGP) where IPSEC is not available nor desirable.
1030# This is enabled on a per-socket basis using the TCP_MD5SIG socket option.
1031# This requires the use of 'device crypto' and 'options IPSEC'.
1032options 	TCP_SIGNATURE		#include support for RFC 2385
1033
1034# DUMMYNET enables the "dummynet" bandwidth limiter.  You need IPFIREWALL
1035# as well.  See dummynet(4) and ipfw(8) for more info.  When you run
1036# DUMMYNET it is advisable to also have at least "options HZ=1000" to achieve
1037# a smooth scheduling of the traffic.
1038options 	DUMMYNET
1039
1040#####################################################################
1041# FILESYSTEM OPTIONS
1042
1043#
1044# Only the root filesystem needs to be statically compiled or preloaded
1045# as module; everything else will be automatically loaded at mount
1046# time.  Some people still prefer to statically compile other
1047# filesystems as well.
1048#
1049# NB: The UNION filesystem was known to be buggy in the past.  It is now
1050# being actively maintained, although there are still some issues being
1051# resolved.
1052#
1053
1054# One of these is mandatory:
1055options 	FFS			#Fast filesystem
1056options 	NFSCL			#Network File System client
1057
1058# The rest are optional:
1059options 	AUTOFS			#Automounter filesystem
1060options 	CD9660			#ISO 9660 filesystem
1061options 	FDESCFS			#File descriptor filesystem
1062options 	FUSE			#FUSE support module
1063options 	MSDOSFS			#MS DOS File System (FAT, FAT32)
1064options 	NFSLOCKD		#Network Lock Manager
1065options 	NFSD			#Network Filesystem Server
1066options 	KGSSAPI			#Kernel GSSAPI implementation
1067
1068options 	NULLFS			#NULL filesystem
1069options 	PROCFS			#Process filesystem (requires PSEUDOFS)
1070options 	PSEUDOFS		#Pseudo-filesystem framework
1071options 	PSEUDOFS_TRACE		#Debugging support for PSEUDOFS
1072options 	SMBFS			#SMB/CIFS filesystem
1073options 	TMPFS			#Efficient memory filesystem
1074options 	UDF			#Universal Disk Format
1075options 	UNIONFS			#Union filesystem
1076# The xFS_ROOT options REQUIRE the associated ``options xFS''
1077options 	NFS_ROOT		#NFS usable as root device
1078
1079# Soft updates is a technique for improving filesystem speed and
1080# making abrupt shutdown less risky.
1081#
1082options 	SOFTUPDATES
1083
1084# Extended attributes allow additional data to be associated with files,
1085# and is used for ACLs, Capabilities, and MAC labels.
1086# See src/sys/ufs/ufs/README.extattr for more information.
1087options 	UFS_EXTATTR
1088options 	UFS_EXTATTR_AUTOSTART
1089
1090# Access Control List support for UFS filesystems.  The current ACL
1091# implementation requires extended attribute support, UFS_EXTATTR,
1092# for the underlying filesystem.
1093# See src/sys/ufs/ufs/README.acls for more information.
1094options 	UFS_ACL
1095
1096# Directory hashing improves the speed of operations on very large
1097# directories at the expense of some memory.
1098options 	UFS_DIRHASH
1099
1100# Gjournal-based UFS journaling support.
1101options 	UFS_GJOURNAL
1102
1103# Make space in the kernel for a root filesystem on a md device.
1104# Define to the number of kilobytes to reserve for the filesystem.
1105# This is now optional.
1106# If not defined, the root filesystem passed in as the MFS_IMAGE makeoption
1107# will be automatically embedded in the kernel during linking. Its exact size
1108# will be consumed within the kernel.
1109# If defined, the old way of embedding the filesystem in the kernel will be
1110# used. That is to say MD_ROOT_SIZE KB will be allocated in the kernel and
1111# later, the filesystem image passed in as the MFS_IMAGE makeoption will be
1112# dd'd into the reserved space if it fits.
1113options 	MD_ROOT_SIZE=10
1114
1115# Make the md device a potential root device, either with preloaded
1116# images of type mfs_root or md_root.
1117options 	MD_ROOT
1118
1119# Disk quotas are supported when this option is enabled.
1120options 	QUOTA			#enable disk quotas
1121
1122# If you are running a machine just as a fileserver for PC and MAC
1123# users, using SAMBA, you may consider setting this option
1124# and keeping all those users' directories on a filesystem that is
1125# mounted with the suiddir option. This gives new files the same
1126# ownership as the directory (similar to group). It's a security hole
1127# if you let these users run programs, so confine it to file-servers
1128# (but it'll save you lots of headaches in those cases). Root owned
1129# directories are exempt and X bits are cleared. The suid bit must be
1130# set on the directory as well; see chmod(1). PC owners can't see/set
1131# ownerships so they keep getting their toes trodden on. This saves
1132# you all the support calls as the filesystem it's used on will act as
1133# they expect: "It's my dir so it must be my file".
1134#
1135options 	SUIDDIR
1136
1137# NFS options:
1138options 	NFS_MINATTRTIMO=3	# VREG attrib cache timeout in sec
1139options 	NFS_MAXATTRTIMO=60
1140options 	NFS_MINDIRATTRTIMO=30	# VDIR attrib cache timeout in sec
1141options 	NFS_MAXDIRATTRTIMO=60
1142options 	NFS_DEBUG		# Enable NFS Debugging
1143
1144#
1145# Add support for the EXT2FS filesystem of Linux fame.  Be a bit
1146# careful with this - the ext2fs code has a tendency to lag behind
1147# changes and not be exercised very much, so mounting read/write could
1148# be dangerous (and even mounting read only could result in panics.)
1149#
1150options 	EXT2FS
1151
1152# Cryptographically secure random number generator; /dev/random
1153device		random
1154
1155# The system memory devices; /dev/mem, /dev/kmem
1156device		mem
1157
1158# The kernel symbol table device; /dev/ksyms
1159device		ksyms
1160
1161# Optional character code conversion support with LIBICONV.
1162# Each option requires their base file system and LIBICONV.
1163options 	CD9660_ICONV
1164options 	MSDOSFS_ICONV
1165options 	UDF_ICONV
1166
1167
1168#####################################################################
1169# POSIX P1003.1B
1170
1171# Real time extensions added in the 1993 POSIX
1172# _KPOSIX_PRIORITY_SCHEDULING: Build in _POSIX_PRIORITY_SCHEDULING
1173
1174options 	_KPOSIX_PRIORITY_SCHEDULING
1175# p1003_1b_semaphores are very experimental,
1176# user should be ready to assist in debugging if problems arise.
1177options 	P1003_1B_SEMAPHORES
1178
1179# POSIX message queue
1180options 	P1003_1B_MQUEUE
1181
1182#####################################################################
1183# SECURITY POLICY PARAMETERS
1184
1185# Support for BSM audit
1186options 	AUDIT
1187
1188# Support for Mandatory Access Control (MAC):
1189options 	MAC
1190options 	MAC_BIBA
1191options 	MAC_BSDEXTENDED
1192options 	MAC_IFOFF
1193options 	MAC_LOMAC
1194options 	MAC_MLS
1195options 	MAC_NONE
1196options 	MAC_PARTITION
1197options 	MAC_PORTACL
1198options 	MAC_SEEOTHERUIDS
1199options 	MAC_STUB
1200options 	MAC_TEST
1201
1202# Support for Capsicum
1203options 	CAPABILITIES	# fine-grained rights on file descriptors
1204options 	CAPABILITY_MODE	# sandboxes with no global namespace access
1205
1206
1207#####################################################################
1208# CLOCK OPTIONS
1209
1210# The granularity of operation is controlled by the kernel option HZ whose
1211# default value (1000 on most architectures) means a granularity of 1ms
1212# (1s/HZ).  Historically, the default was 100, but finer granularity is
1213# required for DUMMYNET and other systems on modern hardware.  There are
1214# reasonable arguments that HZ should, in fact, be 100 still; consider,
1215# that reducing the granularity too much might cause excessive overhead in
1216# clock interrupt processing, potentially causing ticks to be missed and thus
1217# actually reducing the accuracy of operation.
1218
1219options 	HZ=100
1220
1221# Enable support for the kernel PLL to use an external PPS signal,
1222# under supervision of [x]ntpd(8)
1223# More info in ntpd documentation: http://www.eecis.udel.edu/~ntp
1224
1225options 	PPS_SYNC
1226
1227# Enable support for generic feed-forward clocks in the kernel.
1228# The feed-forward clock support is an alternative to the feedback oriented
1229# ntpd/system clock approach, and is to be used with a feed-forward
1230# synchronization algorithm such as the RADclock:
1231# More info here: http://www.synclab.org/radclock
1232
1233options 	FFCLOCK
1234
1235
1236#####################################################################
1237# SCSI DEVICES
1238
1239# SCSI DEVICE CONFIGURATION
1240
1241# The SCSI subsystem consists of the `base' SCSI code, a number of
1242# high-level SCSI device `type' drivers, and the low-level host-adapter
1243# device drivers.  The host adapters are listed in the ISA and PCI
1244# device configuration sections below.
1245#
1246# It is possible to wire down your SCSI devices so that a given bus,
1247# target, and LUN always come on line as the same device unit.  In
1248# earlier versions the unit numbers were assigned in the order that
1249# the devices were probed on the SCSI bus.  This means that if you
1250# removed a disk drive, you may have had to rewrite your /etc/fstab
1251# file, and also that you had to be careful when adding a new disk
1252# as it may have been probed earlier and moved your device configuration
1253# around.  (See also option GEOM_VOL for a different solution to this
1254# problem.)
1255
1256# This old behavior is maintained as the default behavior.  The unit
1257# assignment begins with the first non-wired down unit for a device
1258# type.  For example, if you wire a disk as "da3" then the first
1259# non-wired disk will be assigned da4.
1260
1261# The syntax for wiring down devices is:
1262
1263hint.scbus.0.at="ahc0"
1264hint.scbus.1.at="ahc1"
1265hint.scbus.1.bus="0"
1266hint.scbus.3.at="ahc2"
1267hint.scbus.3.bus="0"
1268hint.scbus.2.at="ahc2"
1269hint.scbus.2.bus="1"
1270hint.da.0.at="scbus0"
1271hint.da.0.target="0"
1272hint.da.0.unit="0"
1273hint.da.1.at="scbus3"
1274hint.da.1.target="1"
1275hint.da.2.at="scbus2"
1276hint.da.2.target="3"
1277hint.sa.1.at="scbus1"
1278hint.sa.1.target="6"
1279
1280# "units" (SCSI logical unit number) that are not specified are
1281# treated as if specified as LUN 0.
1282
1283# All SCSI devices allocate as many units as are required.
1284
1285# The ch driver drives SCSI Media Changer ("jukebox") devices.
1286#
1287# The da driver drives SCSI Direct Access ("disk") and Optical Media
1288# ("WORM") devices.
1289#
1290# The sa driver drives SCSI Sequential Access ("tape") devices.
1291#
1292# The cd driver drives SCSI Read Only Direct Access ("cd") devices.
1293#
1294# The ses driver drives SCSI Environment Services ("ses") and
1295# SAF-TE ("SCSI Accessible Fault-Tolerant Enclosure") devices.
1296#
1297# The pt driver drives SCSI Processor devices.
1298#
1299# The sg driver provides a passthrough API that is compatible with the
1300# Linux SG driver.  It will work in conjunction with the COMPAT_LINUX
1301# option to run linux SG apps.  It can also stand on its own and provide
1302# source level API compatibility for porting apps to FreeBSD.
1303#
1304# Target Mode support is provided here but also requires that a SIM
1305# (SCSI Host Adapter Driver) provide support as well.
1306#
1307# The targ driver provides target mode support as a Processor type device.
1308# It exists to give the minimal context necessary to respond to Inquiry
1309# commands. There is a sample user application that shows how the rest
1310# of the command support might be done in /usr/share/examples/scsi_target.
1311#
1312# The targbh driver provides target mode support and exists to respond
1313# to incoming commands that do not otherwise have a logical unit assigned
1314# to them.
1315#
1316# The pass driver provides a passthrough API to access the CAM subsystem.
1317
1318device		scbus		#base SCSI code
1319device		ch		#SCSI media changers
1320device		da		#SCSI direct access devices (aka disks)
1321device		sa		#SCSI tapes
1322device		cd		#SCSI CD-ROMs
1323device		ses		#Enclosure Services (SES and SAF-TE)
1324device		pt		#SCSI processor
1325device		targ		#SCSI Target Mode Code
1326device		targbh		#SCSI Target Mode Blackhole Device
1327device		pass		#CAM passthrough driver
1328device		sg		#Linux SCSI passthrough
1329device		ctl		#CAM Target Layer
1330
1331# CAM OPTIONS:
1332# debugging options:
1333# CAMDEBUG		Compile in all possible debugging.
1334# CAM_DEBUG_COMPILE	Debug levels to compile in.
1335# CAM_DEBUG_FLAGS	Debug levels to enable on boot.
1336# CAM_DEBUG_BUS		Limit debugging to the given bus.
1337# CAM_DEBUG_TARGET	Limit debugging to the given target.
1338# CAM_DEBUG_LUN		Limit debugging to the given lun.
1339# CAM_DEBUG_DELAY	Delay in us after printing each debug line.
1340#
1341# CAM_MAX_HIGHPOWER: Maximum number of concurrent high power (start unit) cmds
1342# SCSI_NO_SENSE_STRINGS: When defined disables sense descriptions
1343# SCSI_NO_OP_STRINGS: When defined disables opcode descriptions
1344# SCSI_DELAY: The number of MILLISECONDS to freeze the SIM (scsi adapter)
1345#             queue after a bus reset, and the number of milliseconds to
1346#             freeze the device queue after a bus device reset.  This
1347#             can be changed at boot and runtime with the
1348#             kern.cam.scsi_delay tunable/sysctl.
1349options 	CAMDEBUG
1350options 	CAM_DEBUG_COMPILE=-1
1351options 	CAM_DEBUG_FLAGS=(CAM_DEBUG_INFO|CAM_DEBUG_PROBE|CAM_DEBUG_PERIPH)
1352options 	CAM_DEBUG_BUS=-1
1353options 	CAM_DEBUG_TARGET=-1
1354options 	CAM_DEBUG_LUN=-1
1355options 	CAM_DEBUG_DELAY=1
1356options 	CAM_MAX_HIGHPOWER=4
1357options 	SCSI_NO_SENSE_STRINGS
1358options 	SCSI_NO_OP_STRINGS
1359options 	SCSI_DELAY=5000	# Be pessimistic about Joe SCSI device
1360options 	CAM_IOSCHED_DYNAMIC
1361
1362# Options for the CAM CDROM driver:
1363# CHANGER_MIN_BUSY_SECONDS: Guaranteed minimum time quantum for a changer LUN
1364# CHANGER_MAX_BUSY_SECONDS: Maximum time quantum per changer LUN, only
1365#                           enforced if there is I/O waiting for another LUN
1366# The compiled in defaults for these variables are 2 and 10 seconds,
1367# respectively.
1368#
1369# These can also be changed on the fly with the following sysctl variables:
1370# kern.cam.cd.changer.min_busy_seconds
1371# kern.cam.cd.changer.max_busy_seconds
1372#
1373options 	CHANGER_MIN_BUSY_SECONDS=2
1374options 	CHANGER_MAX_BUSY_SECONDS=10
1375
1376# Options for the CAM sequential access driver:
1377# SA_IO_TIMEOUT: Timeout for read/write/wfm  operations, in minutes
1378# SA_SPACE_TIMEOUT: Timeout for space operations, in minutes
1379# SA_REWIND_TIMEOUT: Timeout for rewind operations, in minutes
1380# SA_ERASE_TIMEOUT: Timeout for erase operations, in minutes
1381# SA_1FM_AT_EOD: Default to model which only has a default one filemark at EOT.
1382options 	SA_IO_TIMEOUT=4
1383options 	SA_SPACE_TIMEOUT=60
1384options 	SA_REWIND_TIMEOUT=(2*60)
1385options 	SA_ERASE_TIMEOUT=(4*60)
1386options 	SA_1FM_AT_EOD
1387
1388# Optional timeout for the CAM processor target (pt) device
1389# This is specified in seconds.  The default is 60 seconds.
1390options 	SCSI_PT_DEFAULT_TIMEOUT=60
1391
1392# Optional enable of doing SES passthrough on other devices (e.g., disks)
1393#
1394# Normally disabled because a lot of newer SCSI disks report themselves
1395# as having SES capabilities, but this can then clot up attempts to build
1396# a topology with the SES device that's on the box these drives are in....
1397options 	SES_ENABLE_PASSTHROUGH
1398
1399
1400#####################################################################
1401# MISCELLANEOUS DEVICES AND OPTIONS
1402
1403device		pty		#BSD-style compatibility pseudo ttys
1404device		nmdm		#back-to-back tty devices
1405device		md		#Memory/malloc disk
1406device		snp		#Snoop device - to look at pty/vty/etc..
1407device		ccd		#Concatenated disk driver
1408device		firmware	#firmware(9) support
1409
1410# Kernel side iconv library
1411options 	LIBICONV
1412
1413# Size of the kernel message buffer.  Should be N * pagesize.
1414options 	MSGBUF_SIZE=40960
1415
1416
1417#####################################################################
1418# HARDWARE BUS CONFIGURATION
1419
1420#
1421# PCI bus & PCI options:
1422#
1423device		pci
1424options 	PCI_HP			# PCI-Express native HotPlug
1425options 	PCI_IOV			# PCI SR-IOV support
1426
1427
1428#####################################################################
1429# HARDWARE DEVICE CONFIGURATION
1430
1431# For ISA the required hints are listed.
1432# EISA, MCA, PCI, CardBus, SD/MMC and pccard are self identifying buses, so
1433# no hints are needed.
1434
1435#
1436# Mandatory devices:
1437#
1438
1439# These options are valid for other keyboard drivers as well.
1440options 	KBD_DISABLE_KEYMAP_LOAD	# refuse to load a keymap
1441options 	KBD_INSTALL_CDEV	# install a CDEV entry in /dev
1442
1443device		kbdmux			# keyboard multiplexer
1444options		KBDMUX_DFLT_KEYMAP	# specify the built-in keymap
1445makeoptions	KBDMUX_DFLT_KEYMAP=it.iso
1446
1447options 	FB_DEBUG		# Frame buffer debugging
1448
1449device		splash			# Splash screen and screen saver support
1450
1451# Various screen savers.
1452device		blank_saver
1453device		daemon_saver
1454device		dragon_saver
1455device		fade_saver
1456device		fire_saver
1457device		green_saver
1458device		logo_saver
1459device		rain_saver
1460device		snake_saver
1461device		star_saver
1462device		warp_saver
1463
1464# The syscons console driver (SCO color console compatible).
1465device		sc
1466hint.sc.0.at="isa"
1467options 	MAXCONS=16		# number of virtual consoles
1468options 	SC_ALT_MOUSE_IMAGE	# simplified mouse cursor in text mode
1469options 	SC_DFLT_FONT		# compile font in
1470makeoptions	SC_DFLT_FONT=cp850
1471options 	SC_DISABLE_KDBKEY	# disable `debug' key
1472options 	SC_DISABLE_REBOOT	# disable reboot key sequence
1473options 	SC_HISTORY_SIZE=200	# number of history buffer lines
1474options 	SC_MOUSE_CHAR=0x3	# char code for text mode mouse cursor
1475options 	SC_PIXEL_MODE		# add support for the raster text mode
1476
1477# The following options will let you change the default colors of syscons.
1478options 	SC_NORM_ATTR=(FG_GREEN|BG_BLACK)
1479options 	SC_NORM_REV_ATTR=(FG_YELLOW|BG_GREEN)
1480options 	SC_KERNEL_CONS_ATTR=(FG_RED|BG_BLACK)
1481options 	SC_KERNEL_CONS_REV_ATTR=(FG_BLACK|BG_RED)
1482
1483# The following options will let you change the default behavior of
1484# cut-n-paste feature
1485options 	SC_CUT_SPACES2TABS	# convert leading spaces into tabs
1486options 	SC_CUT_SEPCHARS=\"x09\"	# set of characters that delimit words
1487					# (default is single space - \"x20\")
1488
1489# If you have a two button mouse, you may want to add the following option
1490# to use the right button of the mouse to paste text.
1491options 	SC_TWOBUTTON_MOUSE
1492
1493# You can selectively disable features in syscons.
1494options 	SC_NO_CUTPASTE
1495options 	SC_NO_FONT_LOADING
1496options 	SC_NO_HISTORY
1497options 	SC_NO_MODE_CHANGE
1498options 	SC_NO_SYSMOUSE
1499options 	SC_NO_SUSPEND_VTYSWITCH
1500
1501# `flags' for sc
1502#	0x80	Put the video card in the VESA 800x600 dots, 16 color mode
1503#	0x100	Probe for a keyboard device periodically if one is not present
1504
1505# Enable experimental features of the syscons terminal emulator (teken).
1506options 	TEKEN_CONS25		# cons25-style terminal emulation
1507options 	TEKEN_UTF8		# UTF-8 output handling
1508
1509# The vt video console driver.
1510device		vt
1511options		VT_ALT_TO_ESC_HACK=1	# Prepend ESC sequence to ALT keys
1512options		VT_MAXWINDOWS=16	# Number of virtual consoles
1513options		VT_TWOBUTTON_MOUSE	# Use right mouse button to paste
1514
1515# The following options set the default framebuffer size.
1516options		VT_FB_DEFAULT_HEIGHT=480
1517options		VT_FB_DEFAULT_WIDTH=640
1518
1519# The following options will let you change the default vt terminal colors.
1520options		TERMINAL_NORM_ATTR=(FG_GREEN|BG_BLACK)
1521options		TERMINAL_KERN_ATTR=(FG_LIGHTRED|BG_BLACK)
1522
1523#
1524# Optional devices:
1525#
1526
1527#
1528# SCSI host adapters:
1529#
1530# adv: All Narrow SCSI bus AdvanSys controllers.
1531# adw: Second Generation AdvanSys controllers including the ADV940UW.
1532# aha: Adaptec 154x/1535/1640
1533# ahb: Adaptec 174x EISA controllers
1534# ahc: Adaptec 274x/284x/2910/293x/294x/394x/3950x/3960x/398X/4944/
1535#      19160x/29160x, aic7770/aic78xx
1536# ahd: Adaptec 29320/39320 Controllers.
1537# aic: Adaptec 6260/6360, APA-1460 (PC Card), NEC PC9801-100 (C-BUS)
1538# bt:  Most Buslogic controllers: including BT-445, BT-54x, BT-64x, BT-74x,
1539#      BT-75x, BT-946, BT-948, BT-956, BT-958, SDC3211B, SDC3211F, SDC3222F
1540# esp: Emulex ESP, NCR 53C9x and QLogic FAS families based controllers
1541#      including the AMD Am53C974 (found on devices such as the Tekram
1542#      DC-390(T)) and the Sun ESP and FAS families of controllers
1543# isp: Qlogic ISP 1020, 1040 and 1040B PCI SCSI host adapters,
1544#      ISP 1240 Dual Ultra SCSI, ISP 1080 and 1280 (Dual) Ultra2,
1545#      ISP 12160 Ultra3 SCSI,
1546#      Qlogic ISP 2100 and ISP 2200 1Gb Fibre Channel host adapters.
1547#      Qlogic ISP 2300 and ISP 2312 2Gb Fibre Channel host adapters.
1548#      Qlogic ISP 2322 and ISP 6322 2Gb Fibre Channel host adapters.
1549# ispfw: Firmware module for Qlogic host adapters
1550# mpt: LSI-Logic MPT/Fusion 53c1020 or 53c1030 Ultra4
1551#      or FC9x9 Fibre Channel host adapters.
1552# ncr: NCR 53C810, 53C825 self-contained SCSI host adapters.
1553# sym: Symbios/Logic 53C8XX family of PCI-SCSI I/O processors:
1554#      53C810, 53C810A, 53C815, 53C825,  53C825A, 53C860, 53C875,
1555#      53C876, 53C885,  53C895, 53C895A, 53C896,  53C897, 53C1510D,
1556#      53C1010-33, 53C1010-66.
1557# trm: Tekram DC395U/UW/F DC315U adapters.
1558
1559#
1560# Note that the order is important in order for Buslogic ISA/EISA cards to be
1561# probed correctly.
1562#
1563device		bt
1564hint.bt.0.at="isa"
1565hint.bt.0.port="0x330"
1566device		adv
1567hint.adv.0.at="isa"
1568device		adw
1569device		aha
1570hint.aha.0.at="isa"
1571device		aic
1572hint.aic.0.at="isa"
1573device		ahb
1574device		ahc
1575device		ahd
1576device		esp
1577device		iscsi_initiator
1578device		isp
1579hint.isp.0.disable="1"
1580hint.isp.0.role="3"
1581hint.isp.0.prefer_iomap="1"
1582hint.isp.0.prefer_memmap="1"
1583hint.isp.0.fwload_disable="1"
1584hint.isp.0.ignore_nvram="1"
1585hint.isp.0.fullduplex="1"
1586hint.isp.0.topology="lport"
1587hint.isp.0.topology="nport"
1588hint.isp.0.topology="lport-only"
1589hint.isp.0.topology="nport-only"
1590# we can't get u_int64_t types, nor can we get strings if it's got
1591# a leading 0x, hence this silly dodge.
1592hint.isp.0.portwnn="w50000000aaaa0000"
1593hint.isp.0.nodewnn="w50000000aaaa0001"
1594device		ispfw
1595device		mpt
1596device		ncr
1597device		sym
1598device		trm
1599
1600# The aic7xxx driver will attempt to use memory mapped I/O for all PCI
1601# controllers that have it configured only if this option is set. Unfortunately,
1602# this doesn't work on some motherboards, which prevents it from being the
1603# default.
1604options 	AHC_ALLOW_MEMIO
1605
1606# Dump the contents of the ahc controller configuration PROM.
1607options 	AHC_DUMP_EEPROM
1608
1609# Bitmap of units to enable targetmode operations.
1610options 	AHC_TMODE_ENABLE
1611
1612# Compile in Aic7xxx Debugging code.
1613options 	AHC_DEBUG
1614
1615# Aic7xxx driver debugging options. See sys/dev/aic7xxx/aic7xxx.h
1616options 	AHC_DEBUG_OPTS
1617
1618# Print register bitfields in debug output.  Adds ~128k to driver
1619# See ahc(4).
1620options 	AHC_REG_PRETTY_PRINT
1621
1622# Compile in aic79xx debugging code.
1623options 	AHD_DEBUG
1624
1625# Aic79xx driver debugging options.  Adds ~215k to driver.  See ahd(4).
1626options 	AHD_DEBUG_OPTS=0xFFFFFFFF
1627
1628# Print human-readable register definitions when debugging
1629options 	AHD_REG_PRETTY_PRINT
1630
1631# Bitmap of units to enable targetmode operations.
1632options 	AHD_TMODE_ENABLE
1633
1634# The adw driver will attempt to use memory mapped I/O for all PCI
1635# controllers that have it configured only if this option is set.
1636options 	ADW_ALLOW_MEMIO
1637
1638# Options used in dev/iscsi (Software iSCSI stack)
1639#
1640options 	ISCSI_INITIATOR_DEBUG=9
1641
1642# Options used in dev/isp/ (Qlogic SCSI/FC driver).
1643#
1644#	ISP_TARGET_MODE		-	enable target mode operation
1645#
1646options 	ISP_TARGET_MODE=1
1647#
1648#	ISP_DEFAULT_ROLES	-	default role
1649#		none=0
1650#		target=1
1651#		initiator=2
1652#		both=3			(not supported currently)
1653#
1654#	ISP_INTERNAL_TARGET		(trivial internal disk target, for testing)
1655#
1656options 	ISP_DEFAULT_ROLES=0
1657
1658# Options used in dev/sym/ (Symbios SCSI driver).
1659#options 	SYM_SETUP_LP_PROBE_MAP	#-Low Priority Probe Map (bits)
1660					# Allows the ncr to take precedence
1661					# 1 (1<<0) -> 810a, 860
1662					# 2 (1<<1) -> 825a, 875, 885, 895
1663					# 4 (1<<2) -> 895a, 896, 1510d
1664#options 	SYM_SETUP_SCSI_DIFF	#-HVD support for 825a, 875, 885
1665					# disabled:0 (default), enabled:1
1666#options 	SYM_SETUP_PCI_PARITY	#-PCI parity checking
1667					# disabled:0, enabled:1 (default)
1668#options 	SYM_SETUP_MAX_LUN	#-Number of LUNs supported
1669					# default:8, range:[1..64]
1670
1671# The 'dpt' driver provides support for old DPT controllers (http://www.dpt.com/).
1672# These have hardware RAID-{0,1,5} support, and do multi-initiator I/O.
1673# The DPT controllers are commonly re-licensed under other brand-names -
1674# some controllers by Olivetti, Dec, HP, AT&T, SNI, AST, Alphatronic, NEC and
1675# Compaq are actually DPT controllers.
1676#
1677# See src/sys/dev/dpt for debugging and other subtle options.
1678#  DPT_MEASURE_PERFORMANCE  Enables a set of (semi)invasive metrics. Various
1679#                           instruments are enabled.  The tools in
1680#                           /usr/sbin/dpt_* assume these to be enabled.
1681#  DPT_DEBUG_xxxx           These are controllable from sys/dev/dpt/dpt.h
1682#  DPT_RESET_HBA            Make "reset" actually reset the controller
1683#                           instead of fudging it.  Only enable this if you
1684#			    are 100% certain you need it.
1685
1686device		dpt
1687
1688# DPT options
1689#!CAM# options 	DPT_MEASURE_PERFORMANCE
1690options 	DPT_RESET_HBA
1691
1692#
1693# Compaq "CISS" RAID controllers (SmartRAID 5* series)
1694# These controllers have a SCSI-like interface, and require the
1695# CAM infrastructure.
1696#
1697device		ciss
1698
1699#
1700# Intel Integrated RAID controllers.
1701# This driver was developed and is maintained by Intel.  Contacts
1702# at Intel for this driver are
1703# "Kannanthanam, Boji T" <boji.t.kannanthanam@intel.com> and
1704# "Leubner, Achim" <achim.leubner@intel.com>.
1705#
1706device		iir
1707
1708#
1709# Mylex AcceleRAID and eXtremeRAID controllers with v6 and later
1710# firmware.  These controllers have a SCSI-like interface, and require
1711# the CAM infrastructure.
1712#
1713device		mly
1714
1715#
1716# Compaq Smart RAID, Mylex DAC960 and AMI MegaRAID controllers.  Only
1717# one entry is needed; the code will find and configure all supported
1718# controllers.
1719#
1720device		ida		# Compaq Smart RAID
1721device		mlx		# Mylex DAC960
1722device		amr		# AMI MegaRAID
1723device		amrp		# SCSI Passthrough interface (optional, CAM req.)
1724device		mfi		# LSI MegaRAID SAS
1725device		mfip		# LSI MegaRAID SAS passthrough, requires CAM
1726options 	MFI_DEBUG
1727device		mrsas		# LSI/Avago MegaRAID SAS/SATA, 6Gb/s and 12Gb/s
1728
1729#
1730# 3ware ATA RAID
1731#
1732device		twe		# 3ware ATA RAID
1733
1734#
1735# Serial ATA host controllers:
1736#
1737# ahci: Advanced Host Controller Interface (AHCI) compatible
1738# mvs:  Marvell 88SX50XX/88SX60XX/88SX70XX/SoC controllers
1739# siis: SiliconImage SiI3124/SiI3132/SiI3531 controllers
1740#
1741# These drivers are part of cam(4) subsystem. They supersede less featured
1742# ata(4) subsystem drivers, supporting same hardware.
1743
1744device		ahci
1745device		mvs
1746device		siis
1747
1748#
1749# The 'ATA' driver supports all legacy ATA/ATAPI controllers, including
1750# PC Card devices. You only need one "device ata" for it to find all
1751# PCI and PC Card ATA/ATAPI devices on modern machines.
1752# Alternatively, individual bus and chipset drivers may be chosen by using
1753# the 'atacore' driver then selecting the drivers on a per vendor basis.
1754# For example to build a system which only supports a VIA chipset,
1755# omit 'ata' and include the 'atacore', 'atapci' and 'atavia' drivers.
1756device		ata
1757
1758# Modular ATA
1759#device		atacore		# Core ATA functionality
1760#device		atacard		# CARDBUS support
1761#device		atabus		# PC98 cbus support
1762#device		ataisa		# ISA bus support
1763#device		atapci		# PCI bus support; only generic chipset support
1764
1765# PCI ATA chipsets
1766#device		ataacard	# ACARD
1767#device		ataacerlabs	# Acer Labs Inc. (ALI)
1768#device		ataamd		# American Micro Devices (AMD)
1769#device		ataati		# ATI
1770#device		atacenatek	# Cenatek
1771#device		atacypress	# Cypress
1772#device		atacyrix	# Cyrix
1773#device		atahighpoint	# HighPoint
1774#device		ataintel	# Intel
1775#device		ataite		# Integrated Technology Inc. (ITE)
1776#device		atajmicron	# JMicron
1777#device		atamarvell	# Marvell
1778#device		atamicron	# Micron
1779#device		atanational	# National
1780#device		atanetcell	# NetCell
1781#device		atanvidia	# nVidia
1782#device		atapromise	# Promise
1783#device		ataserverworks	# ServerWorks
1784#device		atasiliconimage	# Silicon Image Inc. (SiI) (formerly CMD)
1785#device		atasis		# Silicon Integrated Systems Corp.(SiS)
1786#device		atavia		# VIA Technologies Inc.
1787
1788#
1789# For older non-PCI, non-PnPBIOS systems, these are the hints lines to add:
1790hint.ata.0.at="isa"
1791hint.ata.0.port="0x1f0"
1792hint.ata.0.irq="14"
1793hint.ata.1.at="isa"
1794hint.ata.1.port="0x170"
1795hint.ata.1.irq="15"
1796
1797#
1798# The following options are valid on the ATA driver:
1799#
1800# ATA_REQUEST_TIMEOUT:	the number of seconds to wait for an ATA request
1801#			before timing out.
1802
1803#options 	ATA_REQUEST_TIMEOUT=10
1804
1805#
1806# Standard floppy disk controllers and floppy tapes, supports
1807# the Y-E DATA External FDD (PC Card)
1808#
1809device		fdc
1810hint.fdc.0.at="isa"
1811hint.fdc.0.port="0x3F0"
1812hint.fdc.0.irq="6"
1813hint.fdc.0.drq="2"
1814#
1815# FDC_DEBUG enables floppy debugging.  Since the debug output is huge, you
1816# gotta turn it actually on by setting the variable fd_debug with DDB,
1817# however.
1818options 	FDC_DEBUG
1819#
1820# Activate this line if you happen to have an Insight floppy tape.
1821# Probing them proved to be dangerous for people with floppy disks only,
1822# so it's "hidden" behind a flag:
1823#hint.fdc.0.flags="1"
1824
1825# Specify floppy devices
1826hint.fd.0.at="fdc0"
1827hint.fd.0.drive="0"
1828hint.fd.1.at="fdc0"
1829hint.fd.1.drive="1"
1830
1831#
1832# uart: newbusified driver for serial interfaces.  It consolidates the sio(4),
1833#	sab(4) and zs(4) drivers.
1834#
1835device		uart
1836
1837# Options for uart(4)
1838options 	UART_PPS_ON_CTS		# Do time pulse capturing using CTS
1839					# instead of DCD.
1840options 	UART_POLL_FREQ		# Set polling rate, used when hw has
1841					# no interrupt support (50 Hz default).
1842
1843# The following hint should only be used for pure ISA devices.  It is not
1844# needed otherwise.  Use of hints is strongly discouraged.
1845hint.uart.0.at="isa"
1846
1847# The following 3 hints are used when the UART is a system device (i.e., a
1848# console or debug port), but only on platforms that don't have any other
1849# means to pass the information to the kernel.  The unit number of the hint
1850# is only used to bundle the hints together.  There is no relation to the
1851# unit number of the probed UART.
1852hint.uart.0.port="0x3f8"
1853hint.uart.0.flags="0x10"
1854hint.uart.0.baud="115200"
1855
1856# `flags' for serial drivers that support consoles like sio(4) and uart(4):
1857#	0x10	enable console support for this unit.  Other console flags
1858#		(if applicable) are ignored unless this is set.  Enabling
1859#		console support does not make the unit the preferred console.
1860#		Boot with -h or set boot_serial=YES in the loader.  For sio(4)
1861#		specifically, the 0x20 flag can also be set (see above).
1862#		Currently, at most one unit can have console support; the
1863#		first one (in config file order) with this flag set is
1864#		preferred.  Setting this flag for sio0 gives the old behavior.
1865#	0x80	use this port for serial line gdb support in ddb.  Also known
1866#		as debug port.
1867#
1868
1869# Options for serial drivers that support consoles:
1870options 	BREAK_TO_DEBUGGER	# A BREAK/DBG on the console goes to
1871					# ddb, if available.
1872
1873# Solaris implements a new BREAK which is initiated by a character
1874# sequence CR ~ ^b which is similar to a familiar pattern used on
1875# Sun servers by the Remote Console.  There are FreeBSD extensions:
1876# CR ~ ^p requests force panic and CR ~ ^r requests a clean reboot.
1877options 	ALT_BREAK_TO_DEBUGGER
1878
1879# Serial Communications Controller
1880# Supports the Siemens SAB 82532 and Zilog Z8530 multi-channel
1881# communications controllers.
1882device		scc
1883
1884# PCI Universal Communications driver
1885# Supports various multi port PCI I/O cards.
1886device		puc
1887
1888#
1889# Network interfaces:
1890#
1891# MII bus support is required for many PCI Ethernet NICs,
1892# namely those which use MII-compliant transceivers or implement
1893# transceiver control interfaces that operate like an MII.  Adding
1894# "device miibus" to the kernel config pulls in support for the generic
1895# miibus API, the common support for for bit-bang'ing the MII and all
1896# of the PHY drivers, including a generic one for PHYs that aren't
1897# specifically handled by an individual driver.  Support for specific
1898# PHYs may be built by adding "device mii", "device mii_bitbang" if
1899# needed by the NIC driver and then adding the appropriate PHY driver.
1900device  	mii		# Minimal MII support
1901device  	mii_bitbang	# Common module for bit-bang'ing the MII
1902device  	miibus		# MII support w/ bit-bang'ing and all PHYs
1903
1904device  	acphy		# Altima Communications AC101
1905device  	amphy		# AMD AM79c873 / Davicom DM910{1,2}
1906device  	atphy		# Attansic/Atheros F1
1907device  	axphy		# Asix Semiconductor AX88x9x
1908device  	bmtphy		# Broadcom BCM5201/BCM5202 and 3Com 3c905C
1909device		bnxt		# Broadcom NetXtreme-C/NetXtreme-E
1910device  	brgphy		# Broadcom BCM54xx/57xx 1000baseTX
1911device  	ciphy		# Cicada/Vitesse CS/VSC8xxx
1912device  	e1000phy	# Marvell 88E1000 1000/100/10-BT
1913device  	gentbi		# Generic 10-bit 1000BASE-{LX,SX} fiber ifaces
1914device  	icsphy		# ICS ICS1889-1893
1915device  	ip1000phy	# IC Plus IP1000A/IP1001
1916device  	jmphy		# JMicron JMP211/JMP202
1917device  	lxtphy		# Level One LXT-970
1918device  	mlphy		# Micro Linear 6692
1919device  	nsgphy		# NatSemi DP8361/DP83865/DP83891
1920device  	nsphy		# NatSemi DP83840A
1921device  	nsphyter	# NatSemi DP83843/DP83815
1922device  	pnaphy		# HomePNA
1923device  	qsphy		# Quality Semiconductor QS6612
1924device  	rdcphy		# RDC Semiconductor R6040
1925device  	rgephy		# RealTek 8169S/8110S/8211B/8211C
1926device  	rlphy		# RealTek 8139
1927device  	rlswitch	# RealTek 8305
1928device  	smcphy		# SMSC LAN91C111
1929device  	tdkphy		# TDK 89Q2120
1930device  	tlphy		# Texas Instruments ThunderLAN
1931device  	truephy		# LSI TruePHY
1932device		xmphy		# XaQti XMAC II
1933
1934# an:   Aironet 4500/4800 802.11 wireless adapters. Supports the PCMCIA,
1935#       PCI and ISA varieties.
1936# ae:   Support for gigabit ethernet adapters based on the Attansic/Atheros
1937#       L2 PCI-Express FastEthernet controllers.
1938# age:  Support for gigabit ethernet adapters based on the Attansic/Atheros
1939#       L1 PCI express gigabit ethernet controllers.
1940# alc:  Support for Atheros AR8131/AR8132 PCIe ethernet controllers.
1941# ale:  Support for Atheros AR8121/AR8113/AR8114 PCIe ethernet controllers.
1942# ath:  Atheros a/b/g WiFi adapters (requires ath_hal and wlan)
1943# bce:	Broadcom NetXtreme II (BCM5706/BCM5708) PCI/PCIe Gigabit Ethernet
1944#       adapters.
1945# bfe:	Broadcom BCM4401 Ethernet adapter.
1946# bge:	Support for gigabit ethernet adapters based on the Broadcom
1947#	BCM570x family of controllers, including the 3Com 3c996-T,
1948#	the Netgear GA302T, the SysKonnect SK-9D21 and SK-9D41, and
1949#	the embedded gigE NICs on Dell PowerEdge 2550 servers.
1950# bnxt:	Broadcom NetXtreme-C and NetXtreme-E PCIe 10/25/50G Ethernet adapters.
1951# bxe:	Broadcom NetXtreme II (BCM5771X/BCM578XX) PCIe 10Gb Ethernet
1952#       adapters.
1953# bwi:	Broadcom BCM430* and BCM431* family of wireless adapters.
1954# bwn:	Broadcom BCM43xx family of wireless adapters.
1955# cas:	Sun Cassini/Cassini+ and National Semiconductor DP83065 Saturn
1956# cm:	Arcnet SMC COM90c26 / SMC COM90c56
1957#	(and SMC COM90c66 in '56 compatibility mode) adapters.
1958# cxgb: Chelsio T3 based 1GbE/10GbE PCIe Ethernet adapters.
1959# cxgbe:Chelsio T4, T5, and T6-based 1/10/25/40/100GbE PCIe Ethernet
1960#	adapters.
1961# cxgbev: Chelsio T4, T5, and T6-based PCIe Virtual Functions.
1962# dc:   Support for PCI fast ethernet adapters based on the DEC/Intel 21143
1963#       and various workalikes including:
1964#       the ADMtek AL981 Comet and AN985 Centaur, the ASIX Electronics
1965#       AX88140A and AX88141, the Davicom DM9100 and DM9102, the Lite-On
1966#       82c168 and 82c169 PNIC, the Lite-On/Macronix LC82C115 PNIC II
1967#       and the Macronix 98713/98713A/98715/98715A/98725 PMAC. This driver
1968#       replaces the old al, ax, dm, pn and mx drivers.  List of brands:
1969#       Digital DE500-BA, Kingston KNE100TX, D-Link DFE-570TX, SOHOware SFA110,
1970#       SVEC PN102-TX, CNet Pro110B, 120A, and 120B, Compex RL100-TX,
1971#       LinkSys LNE100TX, LNE100TX V2.0, Jaton XpressNet, Alfa Inc GFC2204,
1972#       KNE110TX.
1973# de:   Digital Equipment DC21040
1974# em:   Intel Pro/1000 Gigabit Ethernet 82542, 82543, 82544 based adapters.
1975# ep:   3Com 3C509, 3C529, 3C556, 3C562D, 3C563D, 3C572, 3C574X, 3C579, 3C589
1976#       and PC Card devices using these chipsets.
1977# ex:   Intel EtherExpress Pro/10 and other i82595-based adapters,
1978#       Olicom Ethernet PC Card devices.
1979# fe:   Fujitsu MB86960A/MB86965A Ethernet
1980# fea:  DEC DEFEA EISA FDDI adapter
1981# fpa:  Support for the Digital DEFPA PCI FDDI. `device fddi' is also needed.
1982# fxp:  Intel EtherExpress Pro/100B
1983#	(hint of prefer_iomap can be done to prefer I/O instead of Mem mapping)
1984# gem:  Apple GMAC/Sun ERI/Sun GEM
1985# hme:  Sun HME (Happy Meal Ethernet)
1986# jme:  JMicron JMC260 Fast Ethernet/JMC250 Gigabit Ethernet based adapters.
1987# le:   AMD Am7900 LANCE and Am79C9xx PCnet
1988# lge:	Support for PCI gigabit ethernet adapters based on the Level 1
1989#	LXT1001 NetCellerator chipset. This includes the D-Link DGE-500SX,
1990#	SMC TigerCard 1000 (SMC9462SX), and some Addtron cards.
1991# malo: Marvell Libertas wireless NICs.
1992# mwl:  Marvell 88W8363 802.11n wireless NICs.
1993#	Requires the mwl firmware module
1994# mwlfw: Marvell 88W8363 firmware
1995# msk:	Support for gigabit ethernet adapters based on the Marvell/SysKonnect
1996#	Yukon II Gigabit controllers, including 88E8021, 88E8022, 88E8061,
1997#	88E8062, 88E8035, 88E8036, 88E8038, 88E8050, 88E8052, 88E8053,
1998#	88E8055, 88E8056 and D-Link 560T/550SX.
1999# lmc:	Support for the LMC/SBE wide-area network interface cards.
2000# mlx5:	Mellanox ConnectX-4 and ConnectX-4 LX IB and Eth shared code module.
2001# mlx5en:Mellanox ConnectX-4 and ConnectX-4 LX PCIe Ethernet adapters.
2002# my:	Myson Fast Ethernet (MTD80X, MTD89X)
2003# nge:	Support for PCI gigabit ethernet adapters based on the National
2004#	Semiconductor DP83820 and DP83821 chipset. This includes the
2005#	SMC EZ Card 1000 (SMC9462TX), D-Link DGE-500T, Asante FriendlyNet
2006#	GigaNIX 1000TA and 1000TPC, the Addtron AEG320T, the Surecom
2007#	EP-320G-TX and the Netgear GA622T.
2008# oce:	Emulex 10 Gbit adapters (OneConnect Ethernet)
2009# pcn:	Support for PCI fast ethernet adapters based on the AMD Am79c97x
2010#	PCnet-FAST, PCnet-FAST+, PCnet-FAST III, PCnet-PRO and PCnet-Home
2011#	chipsets. These can also be handled by the le(4) driver if the
2012#	pcn(4) driver is left out of the kernel. The le(4) driver does not
2013#	support the additional features like the MII bus and burst mode of
2014#	the PCnet-FAST and greater chipsets though.
2015# ral:	Ralink Technology IEEE 802.11 wireless adapter
2016# re:   RealTek 8139C+/8169/816xS/811xS/8101E PCI/PCIe Ethernet adapter
2017# rl:   Support for PCI fast ethernet adapters based on the RealTek 8129/8139
2018#       chipset.  Note that the RealTek driver defaults to using programmed
2019#       I/O to do register accesses because memory mapped mode seems to cause
2020#       severe lockups on SMP hardware.  This driver also supports the
2021#       Accton EN1207D `Cheetah' adapter, which uses a chip called
2022#       the MPX 5030/5038, which is either a RealTek in disguise or a
2023#       RealTek workalike.  Note that the D-Link DFE-530TX+ uses the RealTek
2024#       chipset and is supported by this driver, not the 'vr' driver.
2025# rtwn: RealTek wireless adapters.
2026# rtwnfw: RealTek wireless firmware.
2027# sf:   Support for Adaptec Duralink PCI fast ethernet adapters based on the
2028#       Adaptec AIC-6915 "starfire" controller.
2029#       This includes dual and quad port cards, as well as one 100baseFX card.
2030#       Most of these are 64-bit PCI devices, except for one single port
2031#       card which is 32-bit.
2032# sge:  Silicon Integrated Systems SiS190/191 Fast/Gigabit Ethernet adapter
2033# sis:  Support for NICs based on the Silicon Integrated Systems SiS 900,
2034#       SiS 7016 and NS DP83815 PCI fast ethernet controller chips.
2035# sk:   Support for the SysKonnect SK-984x series PCI gigabit ethernet NICs.
2036#       This includes the SK-9841 and SK-9842 single port cards (single mode
2037#       and multimode fiber) and the SK-9843 and SK-9844 dual port cards
2038#       (also single mode and multimode).
2039#       The driver will autodetect the number of ports on the card and
2040#       attach each one as a separate network interface.
2041# sn:   Support for ISA and PC Card Ethernet devices using the
2042#       SMC91C90/92/94/95 chips.
2043# ste:  Sundance Technologies ST201 PCI fast ethernet controller, includes
2044#       the D-Link DFE-550TX.
2045# stge: Support for gigabit ethernet adapters based on the Sundance/Tamarack
2046#       TC9021 family of controllers, including the Sundance ST2021/ST2023,
2047#       the Sundance/Tamarack TC9021, the D-Link DL-4000 and ASUS NX1101.
2048# ti:   Support for PCI gigabit ethernet NICs based on the Alteon Networks
2049#       Tigon 1 and Tigon 2 chipsets.  This includes the Alteon AceNIC, the
2050#       3Com 3c985, the Netgear GA620 and various others.  Note that you will
2051#       probably want to bump up kern.ipc.nmbclusters a lot to use this driver.
2052# tl:   Support for the Texas Instruments TNETE100 series 'ThunderLAN'
2053#       cards and integrated ethernet controllers.  This includes several
2054#       Compaq Netelligent 10/100 cards and the built-in ethernet controllers
2055#       in several Compaq Prosignia, Proliant and Deskpro systems.  It also
2056#       supports several Olicom 10Mbps and 10/100 boards.
2057# tx:   SMC 9432 TX, BTX and FTX cards. (SMC EtherPower II series)
2058# txp:	Support for 3Com 3cR990 cards with the "Typhoon" chipset
2059# vr:   Support for various fast ethernet adapters based on the VIA
2060#       Technologies VT3043 `Rhine I' and VT86C100A `Rhine II' chips,
2061#       including the D-Link DFE520TX and D-Link DFE530TX (see 'rl' for
2062#       DFE530TX+), the Hawking Technologies PN102TX, and the AOpen/Acer ALN-320.
2063# vte:  DM&P Vortex86 RDC R6040 Fast Ethernet
2064# vx:   3Com 3C590 and 3C595
2065# wb:   Support for fast ethernet adapters based on the Winbond W89C840F chip.
2066#       Note: this is not the same as the Winbond W89C940F, which is a
2067#       NE2000 clone.
2068# wi:   Lucent WaveLAN/IEEE 802.11 PCMCIA adapters. Note: this supports both
2069#       the PCMCIA and ISA cards: the ISA card is really a PCMCIA to ISA
2070#       bridge with a PCMCIA adapter plugged into it.
2071# xe:   Xircom/Intel EtherExpress Pro100/16 PC Card ethernet controller,
2072#       Accton Fast EtherCard-16, Compaq Netelligent 10/100 PC Card,
2073#       Toshiba 10/100 Ethernet PC Card, Xircom 16-bit Ethernet + Modem 56
2074# xl:   Support for the 3Com 3c900, 3c905, 3c905B and 3c905C (Fast)
2075#       Etherlink XL cards and integrated controllers.  This includes the
2076#       integrated 3c905B-TX chips in certain Dell Optiplex and Dell
2077#       Precision desktop machines and the integrated 3c905-TX chips
2078#       in Dell Latitude laptop docking stations.
2079#       Also supported: 3Com 3c980(C)-TX, 3Com 3cSOHO100-TX, 3Com 3c450-TX
2080
2081# Order for ISA/EISA devices is important here
2082
2083device		cm
2084hint.cm.0.at="isa"
2085hint.cm.0.port="0x2e0"
2086hint.cm.0.irq="9"
2087hint.cm.0.maddr="0xdc000"
2088device		ep
2089device		ex
2090device		fe
2091hint.fe.0.at="isa"
2092hint.fe.0.port="0x300"
2093device		fea
2094device		sn
2095hint.sn.0.at="isa"
2096hint.sn.0.port="0x300"
2097hint.sn.0.irq="10"
2098device		an
2099device		wi
2100device		xe
2101
2102# PCI Ethernet NICs that use the common MII bus controller code.
2103device		ae		# Attansic/Atheros L2 FastEthernet
2104device		age		# Attansic/Atheros L1 Gigabit Ethernet
2105device		alc		# Atheros AR8131/AR8132 Ethernet
2106device		ale		# Atheros AR8121/AR8113/AR8114 Ethernet
2107device		bce		# Broadcom BCM5706/BCM5708 Gigabit Ethernet
2108device		bfe		# Broadcom BCM440x 10/100 Ethernet
2109device		bge		# Broadcom BCM570xx Gigabit Ethernet
2110device		cas		# Sun Cassini/Cassini+ and NS DP83065 Saturn
2111device		dc		# DEC/Intel 21143 and various workalikes
2112device		et		# Agere ET1310 10/100/Gigabit Ethernet
2113device		fxp		# Intel EtherExpress PRO/100B (82557, 82558)
2114hint.fxp.0.prefer_iomap="0"
2115device		gem		# Apple GMAC/Sun ERI/Sun GEM
2116device		hme		# Sun HME (Happy Meal Ethernet)
2117device		jme		# JMicron JMC250 Gigabit/JMC260 Fast Ethernet
2118device		lge		# Level 1 LXT1001 gigabit Ethernet
2119device		mlx5		# Shared code module between IB and Ethernet
2120device		mlx5en		# Mellanox ConnectX-4 and ConnectX-4 LX
2121device		msk		# Marvell/SysKonnect Yukon II Gigabit Ethernet
2122device		my		# Myson Fast Ethernet (MTD80X, MTD89X)
2123device		nge		# NatSemi DP83820 gigabit Ethernet
2124device		re		# RealTek 8139C+/8169/8169S/8110S
2125device		rl		# RealTek 8129/8139
2126device		pcn		# AMD Am79C97x PCI 10/100 NICs
2127device		sf		# Adaptec AIC-6915 (``Starfire'')
2128device		sge		# Silicon Integrated Systems SiS190/191
2129device		sis		# Silicon Integrated Systems SiS 900/SiS 7016
2130device		sk		# SysKonnect SK-984x & SK-982x gigabit Ethernet
2131device		ste		# Sundance ST201 (D-Link DFE-550TX)
2132device		stge		# Sundance/Tamarack TC9021 gigabit Ethernet
2133device		tl		# Texas Instruments ThunderLAN
2134device		tx		# SMC EtherPower II (83c170 ``EPIC'')
2135device		vr		# VIA Rhine, Rhine II
2136device		vte		# DM&P Vortex86 RDC R6040 Fast Ethernet
2137device		wb		# Winbond W89C840F
2138device		xl		# 3Com 3c90x (``Boomerang'', ``Cyclone'')
2139
2140# PCI Ethernet NICs.
2141device		cxgb		# Chelsio T3 10 Gigabit Ethernet
2142device		cxgb_t3fw	# Chelsio T3 10 Gigabit Ethernet firmware
2143device		cxgbe		# Chelsio T4-T6 1/10/25/40/100 Gigabit Ethernet
2144device		cxgbev		# Chelsio T4-T6 Virtual Functions
2145device		de		# DEC/Intel DC21x4x (``Tulip'')
2146device		em		# Intel Pro/1000 Gigabit Ethernet
2147device		ixgb		# Intel Pro/10Gbe PCI-X Ethernet
2148device		ix		# Intel Pro/10Gbe PCIE Ethernet
2149device		ixv		# Intel Pro/10Gbe PCIE Ethernet VF
2150device		le		# AMD Am7900 LANCE and Am79C9xx PCnet
2151device		mxge		# Myricom Myri-10G 10GbE NIC
2152device		nxge		# Neterion Xframe 10GbE Server/Storage Adapter
2153device		oce		# Emulex 10 GbE (OneConnect Ethernet)
2154device		ti		# Alteon Networks Tigon I/II gigabit Ethernet
2155device		txp		# 3Com 3cR990 (``Typhoon'')
2156device		vx		# 3Com 3c590, 3c595 (``Vortex'')
2157device		vxge		# Exar/Neterion XFrame 3100 10GbE
2158
2159# PCI FDDI NICs.
2160device		fpa
2161
2162# PCI WAN adapters.
2163device		lmc
2164
2165# PCI IEEE 802.11 Wireless NICs
2166device		ath		# Atheros pci/cardbus NIC's
2167device		ath_hal		# pci/cardbus chip support
2168#device		ath_ar5210	# AR5210 chips
2169#device		ath_ar5211	# AR5211 chips
2170#device		ath_ar5212	# AR5212 chips
2171#device		ath_rf2413
2172#device		ath_rf2417
2173#device		ath_rf2425
2174#device		ath_rf5111
2175#device		ath_rf5112
2176#device		ath_rf5413
2177#device		ath_ar5416	# AR5416 chips
2178options 	AH_SUPPORT_AR5416	# enable AR5416 tx/rx descriptors
2179# All of the AR5212 parts have a problem when paired with the AR71xx
2180# CPUS.  These parts have a bug that triggers a fatal bus error on the AR71xx
2181# only.  Details of the exact nature of the bug are sketchy, but some can be
2182# found at https://forum.openwrt.org/viewtopic.php?pid=70060 on pages 4, 5 and
2183# 6.  This option enables this workaround.  There is a performance penalty
2184# for this work around, but without it things don't work at all.  The DMA
2185# from the card usually bursts 128 bytes, but on the affected CPUs, only
2186# 4 are safe.
2187options	   	AH_RXCFG_SDMAMW_4BYTES
2188#device		ath_ar9160	# AR9160 chips
2189#device		ath_ar9280	# AR9280 chips
2190#device		ath_ar9285	# AR9285 chips
2191device		ath_rate_sample	# SampleRate tx rate control for ath
2192device		bwi		# Broadcom BCM430* BCM431*
2193device		bwn		# Broadcom BCM43xx
2194device		malo		# Marvell Libertas wireless NICs.
2195device		mwl		# Marvell 88W8363 802.11n wireless NICs.
2196device		mwlfw
2197device		ral		# Ralink Technology RT2500 wireless NICs.
2198device		rtwn		# Realtek wireless NICs
2199device		rtwnfw
2200
2201# Use sf_buf(9) interface for jumbo buffers on ti(4) controllers.
2202#options 	TI_SF_BUF_JUMBO
2203# Turn on the header splitting option for the ti(4) driver firmware.  This
2204# only works for Tigon II chips, and has no effect for Tigon I chips.
2205# This option requires the TI_SF_BUF_JUMBO option above.
2206#options 	TI_JUMBO_HDRSPLIT
2207
2208# These two options allow manipulating the mbuf cluster size and mbuf size,
2209# respectively.  Be very careful with NIC driver modules when changing
2210# these from their default values, because that can potentially cause a
2211# mismatch between the mbuf size assumed by the kernel and the mbuf size
2212# assumed by a module.  The only driver that currently has the ability to
2213# detect a mismatch is ti(4).
2214options 	MCLSHIFT=12	# mbuf cluster shift in bits, 12 == 4KB
2215options 	MSIZE=512	# mbuf size in bytes
2216
2217#
2218# ATM related options (Cranor version)
2219# (note: this driver cannot be used with the HARP ATM stack)
2220#
2221# The `en' device provides support for Efficient Networks (ENI)
2222# ENI-155 PCI midway cards, and the Adaptec 155Mbps PCI ATM cards (ANA-59x0).
2223#
2224# The `hatm' device provides support for Fore/Marconi HE155 and HE622
2225# ATM PCI cards.
2226#
2227# The `fatm' device provides support for Fore PCA200E ATM PCI cards.
2228#
2229# The `patm' device provides support for IDT77252 based cards like
2230# ProSum's ProATM-155 and ProATM-25 and IDT's evaluation boards.
2231#
2232# atm device provides generic atm functions and is required for
2233# atm devices.
2234# NATM enables the netnatm protocol family that can be used to
2235# bypass TCP/IP.
2236#
2237# utopia provides the access to the ATM PHY chips and is required for en,
2238# hatm and fatm.
2239#
2240# the current driver supports only PVC operations (no atm-arp, no multicast).
2241# for more details, please read the original documents at
2242# http://www.ccrc.wustl.edu/pub/chuck/tech/bsdatm/bsdatm.html
2243#
2244device		atm
2245device		en
2246device		fatm			#Fore PCA200E
2247device		hatm			#Fore/Marconi HE155/622
2248device		patm			#IDT77252 cards (ProATM and IDT)
2249device		utopia			#ATM PHY driver
2250options 	NATM			#native ATM
2251
2252options 	LIBMBPOOL		#needed by patm, iatm
2253
2254#
2255# Sound drivers
2256#
2257# sound: The generic sound driver.
2258#
2259
2260device		sound
2261
2262#
2263# snd_*: Device-specific drivers.
2264#
2265# The flags of the device tell the device a bit more info about the
2266# device that normally is obtained through the PnP interface.
2267#	bit  2..0   secondary DMA channel;
2268#	bit  4      set if the board uses two dma channels;
2269#	bit 15..8   board type, overrides autodetection; leave it
2270#		    zero if don't know what to put in (and you don't,
2271#		    since this is unsupported at the moment...).
2272#
2273# snd_ad1816:		Analog Devices AD1816 ISA PnP/non-PnP.
2274# snd_als4000:		Avance Logic ALS4000 PCI.
2275# snd_atiixp:		ATI IXP 200/300/400 PCI.
2276# snd_audiocs:		Crystal Semiconductor CS4231 SBus/EBus. Only
2277#			for sparc64.
2278# snd_cmi:		CMedia CMI8338/CMI8738 PCI.
2279# snd_cs4281:		Crystal Semiconductor CS4281 PCI.
2280# snd_csa:		Crystal Semiconductor CS461x/428x PCI. (except
2281#			4281)
2282# snd_ds1:		Yamaha DS-1 PCI.
2283# snd_emu10k1:		Creative EMU10K1 PCI and EMU10K2 (Audigy) PCI.
2284# snd_emu10kx:		Creative SoundBlaster Live! and Audigy
2285# snd_envy24:		VIA Envy24 and compatible, needs snd_spicds.
2286# snd_envy24ht:		VIA Envy24HT and compatible, needs snd_spicds.
2287# snd_es137x:		Ensoniq AudioPCI ES137x PCI.
2288# snd_ess:		Ensoniq ESS ISA PnP/non-PnP, to be used in
2289#			conjunction with snd_sbc.
2290# snd_fm801:		Forte Media FM801 PCI.
2291# snd_gusc:		Gravis UltraSound ISA PnP/non-PnP.
2292# snd_hda:		Intel High Definition Audio (Controller) and
2293#			compatible.
2294# snd_hdspe:		RME HDSPe AIO and RayDAT.
2295# snd_ich:		Intel ICH AC'97 and some more audio controllers
2296#			embedded in a chipset, for example nVidia
2297#			nForce controllers.
2298# snd_maestro:		ESS Technology Maestro-1/2x PCI.
2299# snd_maestro3:		ESS Technology Maestro-3/Allegro PCI.
2300# snd_mss:		Microsoft Sound System ISA PnP/non-PnP.
2301# snd_neomagic:		Neomagic 256 AV/ZX PCI.
2302# snd_sb16:		Creative SoundBlaster16, to be used in
2303#			conjunction with snd_sbc.
2304# snd_sb8:		Creative SoundBlaster (pre-16), to be used in
2305#			conjunction with snd_sbc.
2306# snd_sbc:		Creative SoundBlaster ISA PnP/non-PnP.
2307#			Supports ESS and Avance ISA chips as well.
2308# snd_solo:		ESS Solo-1x PCI.
2309# snd_spicds:		SPI codec driver, needed by Envy24/Envy24HT drivers.
2310# snd_t4dwave:		Trident 4DWave DX/NX PCI, Sis 7018 PCI and Acer Labs
2311#			M5451 PCI.
2312# snd_uaudio:		USB audio.
2313# snd_via8233:		VIA VT8233x PCI.
2314# snd_via82c686:	VIA VT82C686A PCI.
2315# snd_vibes:		S3 Sonicvibes PCI.
2316
2317device		snd_ad1816
2318device		snd_als4000
2319device		snd_atiixp
2320#device		snd_audiocs
2321device		snd_cmi
2322device		snd_cs4281
2323device		snd_csa
2324device		snd_ds1
2325device		snd_emu10k1
2326device		snd_emu10kx
2327device		snd_envy24
2328device		snd_envy24ht
2329device		snd_es137x
2330device		snd_ess
2331device		snd_fm801
2332device		snd_gusc
2333device		snd_hda
2334device		snd_hdspe
2335device		snd_ich
2336device		snd_maestro
2337device		snd_maestro3
2338device		snd_mss
2339device		snd_neomagic
2340device		snd_sb16
2341device		snd_sb8
2342device		snd_sbc
2343device		snd_solo
2344device		snd_spicds
2345device		snd_t4dwave
2346device		snd_uaudio
2347device		snd_via8233
2348device		snd_via82c686
2349device		snd_vibes
2350
2351# For non-PnP sound cards:
2352hint.pcm.0.at="isa"
2353hint.pcm.0.irq="10"
2354hint.pcm.0.drq="1"
2355hint.pcm.0.flags="0x0"
2356hint.sbc.0.at="isa"
2357hint.sbc.0.port="0x220"
2358hint.sbc.0.irq="5"
2359hint.sbc.0.drq="1"
2360hint.sbc.0.flags="0x15"
2361hint.gusc.0.at="isa"
2362hint.gusc.0.port="0x220"
2363hint.gusc.0.irq="5"
2364hint.gusc.0.drq="1"
2365hint.gusc.0.flags="0x13"
2366
2367#
2368# Following options are intended for debugging/testing purposes:
2369#
2370# SND_DEBUG                    Enable extra debugging code that includes
2371#                              sanity checking and possible increase of
2372#                              verbosity.
2373#
2374# SND_DIAGNOSTIC               Similar in a spirit of INVARIANTS/DIAGNOSTIC,
2375#                              zero tolerance against inconsistencies.
2376#
2377# SND_FEEDER_MULTIFORMAT       By default, only 16/32 bit feeders are compiled
2378#                              in. This options enable most feeder converters
2379#                              except for 8bit. WARNING: May bloat the kernel.
2380#
2381# SND_FEEDER_FULL_MULTIFORMAT  Ditto, but includes 8bit feeders as well.
2382#
2383# SND_FEEDER_RATE_HP           (feeder_rate) High precision 64bit arithmetic
2384#                              as much as possible (the default trying to
2385#                              avoid it). Possible slowdown.
2386#
2387# SND_PCM_64                   (Only applicable for i386/32bit arch)
2388#                              Process 32bit samples through 64bit
2389#                              integer/arithmetic. Slight increase of dynamic
2390#                              range at a cost of possible slowdown.
2391#
2392# SND_OLDSTEREO                Only 2 channels are allowed, effectively
2393#                              disabling multichannel processing.
2394#
2395options		SND_DEBUG
2396options		SND_DIAGNOSTIC
2397options		SND_FEEDER_MULTIFORMAT
2398options		SND_FEEDER_FULL_MULTIFORMAT
2399options		SND_FEEDER_RATE_HP
2400options		SND_PCM_64
2401options		SND_OLDSTEREO
2402
2403#
2404# Miscellaneous hardware:
2405#
2406# bktr: Brooktree bt848/848a/849a/878/879 video capture and TV Tuner board
2407# joy: joystick (including IO DATA PCJOY PC Card joystick)
2408# cmx: OmniKey CardMan 4040 pccard smartcard reader
2409
2410device		joy			# PnP aware, hints for non-PnP only
2411hint.joy.0.at="isa"
2412hint.joy.0.port="0x201"
2413device		cmx
2414
2415#
2416# The 'bktr' device is a PCI video capture device using the Brooktree
2417# bt848/bt848a/bt849a/bt878/bt879 chipset. When used with a TV Tuner it forms a
2418# TV card, e.g. Miro PC/TV, Hauppauge WinCast/TV WinTV, VideoLogic Captivator,
2419# Intel Smart Video III, AverMedia, IMS Turbo, FlyVideo.
2420#
2421# options 	OVERRIDE_CARD=xxx
2422# options 	OVERRIDE_TUNER=xxx
2423# options 	OVERRIDE_MSP=1
2424# options 	OVERRIDE_DBX=1
2425# These options can be used to override the auto detection
2426# The current values for xxx are found in src/sys/dev/bktr/bktr_card.h
2427# Using sysctl(8) run-time overrides on a per-card basis can be made
2428#
2429# options 	BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_PAL
2430# or
2431# options 	BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_NTSC
2432# Specifies the default video capture mode.
2433# This is required for Dual Crystal (28&35MHz) boards where PAL is used
2434# to prevent hangs during initialization, e.g. VideoLogic Captivator PCI.
2435#
2436# options 	BKTR_USE_PLL
2437# This is required for PAL or SECAM boards with a 28MHz crystal and no 35MHz
2438# crystal, e.g. some new Bt878 cards.
2439#
2440# options 	BKTR_GPIO_ACCESS
2441# This enables IOCTLs which give user level access to the GPIO port.
2442#
2443# options 	BKTR_NO_MSP_RESET
2444# Prevents the MSP34xx reset. Good if you initialize the MSP in another OS first
2445#
2446# options 	BKTR_430_FX_MODE
2447# Switch Bt878/879 cards into Intel 430FX chipset compatibility mode.
2448#
2449# options 	BKTR_SIS_VIA_MODE
2450# Switch Bt878/879 cards into SIS/VIA chipset compatibility mode which is
2451# needed for some old SiS and VIA chipset motherboards.
2452# This also allows Bt878/879 chips to work on old OPTi (<1997) chipset
2453# motherboards and motherboards with bad or incomplete PCI 2.1 support.
2454# As a rough guess, old = before 1998
2455#
2456# options 	BKTR_NEW_MSP34XX_DRIVER
2457# Use new, more complete initialization scheme for the msp34* soundchip.
2458# Should fix stereo autodetection if the old driver does only output
2459# mono sound.
2460
2461#
2462# options 	BKTR_USE_FREEBSD_SMBUS
2463# Compile with FreeBSD SMBus implementation
2464#
2465# Brooktree driver has been ported to the new I2C framework. Thus,
2466# you'll need to have the following 3 lines in the kernel config.
2467#     device smbus
2468#     device iicbus
2469#     device iicbb
2470#     device iicsmb
2471# The iic and smb devices are only needed if you want to control other
2472# I2C slaves connected to the external connector of some cards.
2473#
2474device		bktr
2475
2476#
2477# PC Card/PCMCIA and Cardbus
2478#
2479# cbb: pci/cardbus bridge implementing YENTA interface
2480# pccard: pccard slots
2481# cardbus: cardbus slots
2482device		cbb
2483device		pccard
2484device		cardbus
2485
2486#
2487# MMC/SD
2488#
2489# mmc 		MMC/SD bus
2490# mmcsd		MMC/SD memory card
2491# sdhci		Generic PCI SD Host Controller
2492#
2493device		mmc
2494device		mmcsd
2495device		sdhci
2496
2497#
2498# SMB bus
2499#
2500# System Management Bus support is provided by the 'smbus' device.
2501# Access to the SMBus device is via the 'smb' device (/dev/smb*),
2502# which is a child of the 'smbus' device.
2503#
2504# Supported devices:
2505# smb		standard I/O through /dev/smb*
2506#
2507# Supported SMB interfaces:
2508# iicsmb	I2C to SMB bridge with any iicbus interface
2509# bktr		brooktree848 I2C hardware interface
2510# intpm		Intel PIIX4 (82371AB, 82443MX) Power Management Unit
2511# alpm		Acer Aladdin-IV/V/Pro2 Power Management Unit
2512# ichsmb	Intel ICH SMBus controller chips (82801AA, 82801AB, 82801BA)
2513# viapm		VIA VT82C586B/596B/686A and VT8233 Power Management Unit
2514# amdpm		AMD 756 Power Management Unit
2515# amdsmb	AMD 8111 SMBus 2.0 Controller
2516# nfpm		NVIDIA nForce Power Management Unit
2517# nfsmb		NVIDIA nForce2/3/4 MCP SMBus 2.0 Controller
2518# ismt		Intel SMBus 2.0 controller chips (on Atom S1200, C2000)
2519#
2520device		smbus		# Bus support, required for smb below.
2521
2522device		intpm
2523device		alpm
2524device		ichsmb
2525device		viapm
2526device		amdpm
2527device		amdsmb
2528device		nfpm
2529device		nfsmb
2530device		ismt
2531
2532device		smb
2533
2534# SMBus peripheral devices
2535#
2536# jedec_ts	Temperature Sensor compliant with JEDEC Standard 21-C
2537#
2538device		jedec_ts
2539
2540# I2C Bus
2541#
2542# Philips i2c bus support is provided by the `iicbus' device.
2543#
2544# Supported devices:
2545# ic	i2c network interface
2546# iic	i2c standard io
2547# iicsmb i2c to smb bridge. Allow i2c i/o with smb commands.
2548# iicoc simple polling driver for OpenCores I2C controller
2549#
2550# Supported interfaces:
2551# bktr	brooktree848 I2C software interface
2552#
2553# Other:
2554# iicbb	generic I2C bit-banging code (needed by lpbb, bktr)
2555#
2556device		iicbus		# Bus support, required for ic/iic/iicsmb below.
2557device		iicbb
2558
2559device		ic
2560device		iic
2561device		iicsmb		# smb over i2c bridge
2562device		iicoc		# OpenCores I2C controller support
2563
2564# I2C peripheral devices
2565#
2566# ds133x	Dallas Semiconductor DS1337, DS1338 and DS1339 RTC
2567# ds1374	Dallas Semiconductor DS1374 RTC
2568# ds1672	Dallas Semiconductor DS1672 RTC
2569# s35390a	Seiko Instruments S-35390A RTC
2570#
2571device		ds133x
2572device		ds1374
2573device		ds1672
2574device		s35390a
2575
2576# Parallel-Port Bus
2577#
2578# Parallel port bus support is provided by the `ppbus' device.
2579# Multiple devices may be attached to the parallel port, devices
2580# are automatically probed and attached when found.
2581#
2582# Supported devices:
2583# vpo	Iomega Zip Drive
2584#	Requires SCSI disk support ('scbus' and 'da'), best
2585#	performance is achieved with ports in EPP 1.9 mode.
2586# lpt	Parallel Printer
2587# plip	Parallel network interface
2588# ppi	General-purpose I/O ("Geek Port") + IEEE1284 I/O
2589# pps	Pulse per second Timing Interface
2590# lpbb	Philips official parallel port I2C bit-banging interface
2591# pcfclock Parallel port clock driver.
2592#
2593# Supported interfaces:
2594# ppc	ISA-bus parallel port interfaces.
2595#
2596
2597options 	PPC_PROBE_CHIPSET # Enable chipset specific detection
2598				  # (see flags in ppc(4))
2599options 	DEBUG_1284	# IEEE1284 signaling protocol debug
2600options 	PERIPH_1284	# Makes your computer act as an IEEE1284
2601				# compliant peripheral
2602options 	DONTPROBE_1284	# Avoid boot detection of PnP parallel devices
2603options 	VP0_DEBUG	# ZIP/ZIP+ debug
2604options 	LPT_DEBUG	# Printer driver debug
2605options 	PPC_DEBUG	# Parallel chipset level debug
2606options 	PLIP_DEBUG	# Parallel network IP interface debug
2607options 	PCFCLOCK_VERBOSE         # Verbose pcfclock driver
2608options 	PCFCLOCK_MAX_RETRIES=5   # Maximum read tries (default 10)
2609
2610device		ppc
2611hint.ppc.0.at="isa"
2612hint.ppc.0.irq="7"
2613device		ppbus
2614device		vpo
2615device		lpt
2616device		plip
2617device		ppi
2618device		pps
2619device		lpbb
2620device		pcfclock
2621
2622#
2623# Etherswitch framework and drivers
2624#
2625# etherswitch	The etherswitch(4) framework
2626# miiproxy	Proxy device for miibus(4) functionality
2627#
2628# Switch hardware support:
2629# arswitch	Atheros switches
2630# ip17x 	IC+ 17x family switches
2631# rtl8366r	Realtek RTL8366 switches
2632# ukswitch	Multi-PHY switches
2633#
2634device		etherswitch
2635device		miiproxy
2636device		arswitch
2637device		ip17x
2638device		rtl8366rb
2639device		ukswitch
2640
2641# Kernel BOOTP support
2642
2643options 	BOOTP		# Use BOOTP to obtain IP address/hostname
2644				# Requires NFSCL and NFS_ROOT
2645options 	BOOTP_NFSROOT	# NFS mount root filesystem using BOOTP info
2646options 	BOOTP_NFSV3	# Use NFS v3 to NFS mount root
2647options 	BOOTP_COMPAT	# Workaround for broken bootp daemons.
2648options 	BOOTP_WIRED_TO=fxp0 # Use interface fxp0 for BOOTP
2649options 	BOOTP_BLOCKSIZE=8192 # Override NFS block size
2650
2651#
2652# Add software watchdog routines.
2653#
2654options 	SW_WATCHDOG
2655
2656#
2657# Add the software deadlock resolver thread.
2658#
2659options 	DEADLKRES
2660
2661#
2662# Disable swapping of stack pages.  This option removes all
2663# code which actually performs swapping, so it's not possible to turn
2664# it back on at run-time.
2665#
2666# This is sometimes usable for systems which don't have any swap space
2667# (see also sysctls "vm.defer_swapspace_pageouts" and
2668# "vm.disable_swapspace_pageouts")
2669#
2670#options 	NO_SWAPPING
2671
2672# Set the number of sf_bufs to allocate. sf_bufs are virtual buffers
2673# for sendfile(2) that are used to map file VM pages, and normally
2674# default to a quantity that is roughly 16*MAXUSERS+512. You would
2675# typically want about 4 of these for each simultaneous file send.
2676#
2677options 	NSFBUFS=1024
2678
2679#
2680# Enable extra debugging code for locks.  This stores the filename and
2681# line of whatever acquired the lock in the lock itself, and changes a
2682# number of function calls to pass around the relevant data.  This is
2683# not at all useful unless you are debugging lock code.  Note that
2684# modules should be recompiled as this option modifies KBI.
2685#
2686options 	DEBUG_LOCKS
2687
2688
2689#####################################################################
2690# USB support
2691# UHCI controller
2692device		uhci
2693# OHCI controller
2694device		ohci
2695# EHCI controller
2696device		ehci
2697# XHCI controller
2698device		xhci
2699# SL811 Controller
2700#device		slhci
2701# General USB code (mandatory for USB)
2702device		usb
2703#
2704# USB Double Bulk Pipe devices
2705device		udbp
2706# USB Fm Radio
2707device		ufm
2708# USB temperature meter
2709device		ugold
2710# USB LED
2711device		uled
2712# Human Interface Device (anything with buttons and dials)
2713device		uhid
2714# USB keyboard
2715device		ukbd
2716# USB printer
2717device		ulpt
2718# USB mass storage driver (Requires scbus and da)
2719device		umass
2720# USB mass storage driver for device-side mode
2721device		usfs
2722# USB support for Belkin F5U109 and Magic Control Technology serial adapters
2723device		umct
2724# USB modem support
2725device		umodem
2726# USB mouse
2727device		ums
2728# USB touchpad(s)
2729device		atp
2730device		wsp
2731# eGalax USB touch screen
2732device		uep
2733# Diamond Rio 500 MP3 player
2734device		urio
2735#
2736# USB serial support
2737device		ucom
2738# USB support for 3G modem cards by Option, Novatel, Huawei and Sierra
2739device		u3g
2740# USB support for Technologies ARK3116 based serial adapters
2741device		uark
2742# USB support for Belkin F5U103 and compatible serial adapters
2743device		ubsa
2744# USB support for serial adapters based on the FT8U100AX and FT8U232AM
2745device		uftdi
2746# USB support for some Windows CE based serial communication.
2747device		uipaq
2748# USB support for Prolific PL-2303 serial adapters
2749device		uplcom
2750# USB support for Silicon Laboratories CP2101/CP2102 based USB serial adapters
2751device		uslcom
2752# USB Visor and Palm devices
2753device		uvisor
2754# USB serial support for DDI pocket's PHS
2755device		uvscom
2756#
2757# USB ethernet support
2758device		uether
2759# ADMtek USB ethernet. Supports the LinkSys USB100TX,
2760# the Billionton USB100, the Melco LU-ATX, the D-Link DSB-650TX
2761# and the SMC 2202USB. Also works with the ADMtek AN986 Pegasus
2762# eval board.
2763device		aue
2764
2765# ASIX Electronics AX88172 USB 2.0 ethernet driver. Used in the
2766# LinkSys USB200M and various other adapters.
2767device		axe
2768# ASIX Electronics AX88178A/AX88179 USB 2.0/3.0 gigabit ethernet driver.
2769device		axge
2770
2771#
2772# Devices which communicate using Ethernet over USB, particularly
2773# Communication Device Class (CDC) Ethernet specification. Supports
2774# Sharp Zaurus PDAs, some DOCSIS cable modems and so on.
2775device		cdce
2776#
2777# CATC USB-EL1201A USB ethernet. Supports the CATC Netmate
2778# and Netmate II, and the Belkin F5U111.
2779device		cue
2780#
2781# Kawasaki LSI ethernet. Supports the LinkSys USB10T,
2782# Entrega USB-NET-E45, Peracom Ethernet Adapter, the
2783# 3Com 3c19250, the ADS Technologies USB-10BT, the ATen UC10T,
2784# the Netgear EA101, the D-Link DSB-650, the SMC 2102USB
2785# and 2104USB, and the Corega USB-T.
2786device		kue
2787#
2788# RealTek RTL8150 USB to fast ethernet. Supports the Melco LUA-KTX
2789# and the GREEN HOUSE GH-USB100B.
2790device		rue
2791#
2792# Davicom DM9601E USB to fast ethernet. Supports the Corega FEther USB-TXC.
2793device		udav
2794#
2795# RealTek RTL8152/RTL8153 USB Ethernet driver
2796device		ure
2797#
2798# Moschip MCS7730/MCS7840 USB to fast ethernet. Supports the Sitecom LN030.
2799device		mos
2800#
2801# HSxPA devices from Option N.V
2802device		uhso
2803
2804# Realtek RTL8188SU/RTL8191SU/RTL8192SU wireless driver
2805device		rsu
2806#
2807# Ralink Technology RT2501USB/RT2601USB wireless driver
2808device		rum
2809# Ralink Technology RT2700U/RT2800U/RT3000U wireless driver
2810device		run
2811#
2812# Atheros AR5523 wireless driver
2813device		uath
2814#
2815# Conexant/Intersil PrismGT wireless driver
2816device		upgt
2817#
2818# Ralink Technology RT2500USB wireless driver
2819device		ural
2820#
2821# RNDIS USB ethernet driver
2822device		urndis
2823# Realtek RTL8187B/L wireless driver
2824device		urtw
2825#
2826# ZyDas ZD1211/ZD1211B wireless driver
2827device		zyd
2828#
2829# Sierra USB wireless driver
2830device		usie
2831
2832#
2833# debugging options for the USB subsystem
2834#
2835options 	USB_DEBUG
2836options 	U3G_DEBUG
2837
2838# options for ukbd:
2839options 	UKBD_DFLT_KEYMAP	# specify the built-in keymap
2840makeoptions	UKBD_DFLT_KEYMAP=jp.pc98
2841
2842# options for uplcom:
2843options 	UPLCOM_INTR_INTERVAL=100	# interrupt pipe interval
2844						# in milliseconds
2845
2846# options for uvscom:
2847options 	UVSCOM_DEFAULT_OPKTSIZE=8	# default output packet size
2848options 	UVSCOM_INTR_INTERVAL=100	# interrupt pipe interval
2849						# in milliseconds
2850
2851#####################################################################
2852# FireWire support
2853
2854device		firewire	# FireWire bus code
2855device		sbp		# SCSI over Firewire (Requires scbus and da)
2856device		sbp_targ	# SBP-2 Target mode  (Requires scbus and targ)
2857device		fwe		# Ethernet over FireWire (non-standard!)
2858device		fwip		# IP over FireWire (RFC2734 and RFC3146)
2859
2860#####################################################################
2861# dcons support (Dumb Console Device)
2862
2863device		dcons			# dumb console driver
2864device		dcons_crom		# FireWire attachment
2865options 	DCONS_BUF_SIZE=16384	# buffer size
2866options 	DCONS_POLL_HZ=100	# polling rate
2867options 	DCONS_FORCE_CONSOLE=0	# force to be the primary console
2868options 	DCONS_FORCE_GDB=1	# force to be the gdb device
2869
2870#####################################################################
2871# crypto subsystem
2872#
2873# This is a port of the OpenBSD crypto framework.  Include this when
2874# configuring IPSEC and when you have a h/w crypto device to accelerate
2875# user applications that link to OpenSSL.
2876#
2877# Drivers are ports from OpenBSD with some simple enhancements that have
2878# been fed back to OpenBSD.
2879
2880device		crypto		# core crypto support
2881
2882# Only install the cryptodev device if you are running tests, or know
2883# specifically why you need it.  In most cases, it is not needed and
2884# will make things slower.
2885device		cryptodev	# /dev/crypto for access to h/w
2886
2887device		rndtest		# FIPS 140-2 entropy tester
2888
2889device		hifn		# Hifn 7951, 7781, etc.
2890options 	HIFN_DEBUG	# enable debugging support: hw.hifn.debug
2891options 	HIFN_RNDTEST	# enable rndtest support
2892
2893device		ubsec		# Broadcom 5501, 5601, 58xx
2894options 	UBSEC_DEBUG	# enable debugging support: hw.ubsec.debug
2895options 	UBSEC_RNDTEST	# enable rndtest support
2896
2897#####################################################################
2898
2899
2900#
2901# Embedded system options:
2902#
2903# An embedded system might want to run something other than init.
2904options 	INIT_PATH=/sbin/init:/rescue/init
2905
2906# Debug options
2907options 	BUS_DEBUG	# enable newbus debugging
2908options 	DEBUG_VFS_LOCKS	# enable VFS lock debugging
2909options 	SOCKBUF_DEBUG	# enable sockbuf last record/mb tail checking
2910options 	IFMEDIA_DEBUG	# enable debugging in net/if_media.c
2911
2912#
2913# Verbose SYSINIT
2914#
2915# Make the SYSINIT process performed by mi_startup() verbose.  This is very
2916# useful when porting to a new architecture.  If DDB is also enabled, this
2917# will print function names instead of addresses.
2918options 	VERBOSE_SYSINIT
2919
2920#####################################################################
2921# SYSV IPC KERNEL PARAMETERS
2922#
2923# Maximum number of System V semaphores that can be used on the system at
2924# one time.
2925options 	SEMMNI=11
2926
2927# Total number of semaphores system wide
2928options 	SEMMNS=61
2929
2930# Total number of undo structures in system
2931options 	SEMMNU=31
2932
2933# Maximum number of System V semaphores that can be used by a single process
2934# at one time.
2935options 	SEMMSL=61
2936
2937# Maximum number of operations that can be outstanding on a single System V
2938# semaphore at one time.
2939options 	SEMOPM=101
2940
2941# Maximum number of undo operations that can be outstanding on a single
2942# System V semaphore at one time.
2943options 	SEMUME=11
2944
2945# Maximum number of shared memory pages system wide.
2946options 	SHMALL=1025
2947
2948# Maximum size, in bytes, of a single System V shared memory region.
2949options 	SHMMAX=(SHMMAXPGS*PAGE_SIZE+1)
2950options 	SHMMAXPGS=1025
2951
2952# Minimum size, in bytes, of a single System V shared memory region.
2953options 	SHMMIN=2
2954
2955# Maximum number of shared memory regions that can be used on the system
2956# at one time.
2957options 	SHMMNI=33
2958
2959# Maximum number of System V shared memory regions that can be attached to
2960# a single process at one time.
2961options 	SHMSEG=9
2962
2963# Set the amount of time (in seconds) the system will wait before
2964# rebooting automatically when a kernel panic occurs.  If set to (-1),
2965# the system will wait indefinitely until a key is pressed on the
2966# console.
2967options 	PANIC_REBOOT_WAIT_TIME=16
2968
2969# Attempt to bypass the buffer cache and put data directly into the
2970# userland buffer for read operation when O_DIRECT flag is set on the
2971# file.  Both offset and length of the read operation must be
2972# multiples of the physical media sector size.
2973#
2974options 	DIRECTIO
2975
2976# Specify a lower limit for the number of swap I/O buffers.  They are
2977# (among other things) used when bypassing the buffer cache due to
2978# DIRECTIO kernel option enabled and O_DIRECT flag set on file.
2979#
2980options 	NSWBUF_MIN=120
2981
2982#####################################################################
2983
2984# More undocumented options for linting.
2985# Note that documenting these is not considered an affront.
2986
2987options 	CAM_DEBUG_DELAY
2988
2989# VFS cluster debugging.
2990options 	CLUSTERDEBUG
2991
2992options 	DEBUG
2993
2994# Kernel filelock debugging.
2995options 	LOCKF_DEBUG
2996
2997# System V compatible message queues
2998# Please note that the values provided here are used to test kernel
2999# building.  The defaults in the sources provide almost the same numbers.
3000# MSGSSZ must be a power of 2 between 8 and 1024.
3001options 	MSGMNB=2049	# Max number of chars in queue
3002options 	MSGMNI=41	# Max number of message queue identifiers
3003options 	MSGSEG=2049	# Max number of message segments
3004options 	MSGSSZ=16	# Size of a message segment
3005options 	MSGTQL=41	# Max number of messages in system
3006
3007options 	NBUF=512	# Number of buffer headers
3008
3009options 	SCSI_NCR_DEBUG
3010options 	SCSI_NCR_MAX_SYNC=10000
3011options 	SCSI_NCR_MAX_WIDE=1
3012options 	SCSI_NCR_MYADDR=7
3013
3014options 	SC_DEBUG_LEVEL=5	# Syscons debug level
3015options 	SC_RENDER_DEBUG	# syscons rendering debugging
3016
3017options 	VFS_BIO_DEBUG	# VFS buffer I/O debugging
3018
3019options 	KSTACK_MAX_PAGES=32 # Maximum pages to give the kernel stack
3020options 	KSTACK_USAGE_PROF
3021
3022# Adaptec Array Controller driver options
3023options 	AAC_DEBUG	# Debugging levels:
3024				# 0 - quiet, only emit warnings
3025				# 1 - noisy, emit major function
3026				#     points and things done
3027				# 2 - extremely noisy, emit trace
3028				#     items in loops, etc.
3029
3030# Resource Accounting
3031options 	RACCT
3032
3033# Resource Limits
3034options 	RCTL
3035
3036# Yet more undocumented options for linting.
3037# BKTR_ALLOC_PAGES has no effect except to cause warnings, and
3038# BROOKTREE_ALLOC_PAGES hasn't actually been superseded by it, since the
3039# driver still mostly spells this option BROOKTREE_ALLOC_PAGES.
3040##options 	BKTR_ALLOC_PAGES=(217*4+1)
3041options 	BROOKTREE_ALLOC_PAGES=(217*4+1)
3042options 	MAXFILES=999
3043
3044# Random number generator
3045# Only ONE of the below two may be used; they are mutually exclusive.
3046# If neither is present, then the Fortuna algorithm is selected.
3047#options 	RANDOM_YARROW	# Yarrow CSPRNG (old default)
3048#options 	RANDOM_LOADABLE	# Allow the algorithm to be loaded as
3049				# a module.
3050# Select this to allow high-rate but potentially expensive
3051# harvesting of Slab-Allocator entropy. In very high-rate
3052# situations the value of doing this is dubious at best.
3053options 	RANDOM_ENABLE_UMA	# slab allocator
3054
3055# Module to enable execution of application via emulators like QEMU
3056options         IMAGACT_BINMISC
3057
3058# zlib I/O stream support
3059# This enables support for compressed core dumps.
3060options 	GZIO
3061
3062# BHND(4) drivers
3063options		BHND_LOGLEVEL	# Logging threshold level
3064
3065# evdev interface
3066device		evdev		# input event device support
3067options 	EVDEV_SUPPORT	# evdev support in legacy drivers
3068options 	EVDEV_DEBUG	# enable event debug msgs
3069device		uinput		# install /dev/uinput cdev
3070options 	UINPUT_DEBUG	# enable uinput debug msgs
3071
3072# Encrypted kernel crash dumps.
3073options 	EKCD
3074