xref: /freebsd/sys/conf/NOTES (revision f9ba2bbe3ac6573cf10d0b29d43c5503909daef9)
11519d15cSJohn Baldwin# $FreeBSD$
22365e64fSRodney W. Grimes#
319dde963SPeter Wemm# NOTES -- Lines that can be cut/pasted into kernel and hints configs.
4f71c01ccSPeter Wemm#
5f71c01ccSPeter Wemm# Lines that begin with 'device', 'options', 'machine', 'ident', 'maxusers',
61519d15cSJohn Baldwin# 'makeoptions', 'hints', etc. go into the kernel configuration that you
7f71c01ccSPeter Wemm# run config(8) with.
8f71c01ccSPeter Wemm#
9*f9ba2bbeSWarner Losh# Lines that begin with 'envvar hint.' should go into your hints file.
10*f9ba2bbeSWarner Losh# See /boot/device.hints and/or the 'hints' config(8) directive.
112365e64fSRodney W. Grimes#
125d4850e7SAlexander Langer# Please use ``make LINT'' to create an old-style LINT file if you want to
135d4850e7SAlexander Langer# do kernel test-builds.
145d4850e7SAlexander Langer#
15dd267672SJohn Baldwin# This file contains machine independent kernel configuration notes.  For
16dd267672SJohn Baldwin# machine dependent notes, look in /sys/<arch>/conf/NOTES.
17dd267672SJohn Baldwin#
181519d15cSJohn Baldwin
191519d15cSJohn Baldwin#
201519d15cSJohn Baldwin# NOTES conventions and style guide:
211519d15cSJohn Baldwin#
221519d15cSJohn Baldwin# Large block comments should begin and end with a line containing only a
231519d15cSJohn Baldwin# comment character.
241519d15cSJohn Baldwin#
251519d15cSJohn Baldwin# To describe a particular object, a block comment (if it exists) should
261519d15cSJohn Baldwin# come first.  Next should come device, options, and hints lines in that
271519d15cSJohn Baldwin# order.  All device and option lines must be described by a comment that
281519d15cSJohn Baldwin# doesn't just expand the device or option name.  Use only a concise
291519d15cSJohn Baldwin# comment on the same line if possible.  Very detailed descriptions of
301519d15cSJohn Baldwin# devices and subsystems belong in man pages.
311519d15cSJohn Baldwin#
32eb4f7a81SNate Lawson# A space followed by a tab separates 'options' from an option name.  Two
331519d15cSJohn Baldwin# spaces followed by a tab separate 'device' from a device name.  Comments
341519d15cSJohn Baldwin# after an option or device should use one space after the comment character.
351519d15cSJohn Baldwin# To comment out a negative option that disables code and thus should not be
36eb4f7a81SNate Lawson# enabled for LINT builds, precede 'options' with "#!".
372365e64fSRodney W. Grimes#
382365e64fSRodney W. Grimes
396a8d6623SGarrett Wollman#
406a8d6623SGarrett Wollman# This is the ``identification'' of the kernel.  Usually this should
416a8d6623SGarrett Wollman# be the same as the name of your kernel.
426a8d6623SGarrett Wollman#
436a8d6623SGarrett Wollmanident		LINT
446a8d6623SGarrett Wollman
456a8d6623SGarrett Wollman#
466a8d6623SGarrett Wollman# The `maxusers' parameter controls the static sizing of a number of
47ab0f83bdSRuslan Ermilov# internal system tables by a formula defined in subr_param.c.
48ab0f83bdSRuslan Ermilov# Omitting this parameter or setting it to 0 will cause the system to
49ab0f83bdSRuslan Ermilov# auto-size based on physical memory.
506a8d6623SGarrett Wollman#
516a8d6623SGarrett Wollmanmaxusers	10
526a8d6623SGarrett Wollman
5313c18821SJohn Baldwin# To statically compile in device wiring instead of /boot/device.hints
5413c18821SJohn Baldwin#hints		"LINT.hints"		# Default places to look for devices.
5513c18821SJohn Baldwin
5613c18821SJohn Baldwin# Use the following to compile in values accessible to the kernel
5713c18821SJohn Baldwin# through getenv() (or kenv(1) in userland). The format of the file
5813c18821SJohn Baldwin# is 'variable=value', see kenv(1)
5913c18821SJohn Baldwin#
6013c18821SJohn Baldwin#env		"LINT.env"
6113c18821SJohn Baldwin
626a8d6623SGarrett Wollman#
637bf01a14SPeter Wemm# The `makeoptions' parameter allows variables to be passed to the
64503e6666SBruce Evans# generated Makefile in the build area.
65503e6666SBruce Evans#
66503e6666SBruce Evans# CONF_CFLAGS gives some extra compiler flags that are added to ${CFLAGS}
67503e6666SBruce Evans# after most other flags.  Here we use it to inhibit use of non-optimal
681c9c6382SRuslan Ermilov# gcc built-in functions (e.g., memcmp).
69503e6666SBruce Evans#
70503e6666SBruce Evans# DEBUG happens to be magic.
717bf01a14SPeter Wemm# The following is equivalent to 'config -g KERNELNAME' and creates
727bf01a14SPeter Wemm# 'kernel.debug' compiled with -g debugging as well as a normal
737bf01a14SPeter Wemm# 'kernel'.  Use 'make install.debug' to install the debug kernel
747bf01a14SPeter Wemm# but that isn't normally necessary as the debug symbols are not loaded
757bf01a14SPeter Wemm# by the kernel and are not useful there anyway.
767bf01a14SPeter Wemm#
772c8635c6SPeter Wemm# KERNEL can be overridden so that you can change the default name of your
782c8635c6SPeter Wemm# kernel.
792c8635c6SPeter Wemm#
800e3d06b1SWarner Losh# MODULES_OVERRIDE can be used to limit modules built to a specific list.
810e3d06b1SWarner Losh#
82503e6666SBruce Evansmakeoptions	CONF_CFLAGS=-fno-builtin  #Don't allow use of memcmp, etc.
835895e3c8SPeter Wemm#makeoptions	DEBUG=-g		#Build kernel with gdb(1) debug symbols
842c8635c6SPeter Wemm#makeoptions	KERNEL=foo		#Build kernel "foo" and install "/foo"
85f4eb4717SAlexander Leidinger# Only build ext2fs module plus those parts of the sound system I need.
86f4eb4717SAlexander Leidinger#makeoptions	MODULES_OVERRIDE="ext2fs sound/sound sound/driver/maestro3"
87fa75a3c2SPoul-Henning Kampmakeoptions	DESTDIR=/tmp
88fa75a3c2SPoul-Henning Kamp
893236b30eSGreg Lehey#
90480c6b8aSGreg Lehey# FreeBSD processes are subject to certain limits to their consumption
91480c6b8aSGreg Lehey# of system resources.  See getrlimit(2) for more details.  Each
92480c6b8aSGreg Lehey# resource limit has two values, a "soft" limit and a "hard" limit.
93480c6b8aSGreg Lehey# The soft limits can be modified during normal system operation, but
94480c6b8aSGreg Lehey# the hard limits are set at boot time.  Their default values are
95480c6b8aSGreg Lehey# in sys/<arch>/include/vmparam.h.  There are two ways to change them:
96480c6b8aSGreg Lehey#
97480c6b8aSGreg Lehey# 1.  Set the values at kernel build time.  The options below are one
98480c6b8aSGreg Lehey#     way to allow that limit to grow to 1GB.  They can be increased
99480c6b8aSGreg Lehey#     further by changing the parameters:
1003236b30eSGreg Lehey#
101480c6b8aSGreg Lehey# 2.  In /boot/loader.conf, set the tunables kern.maxswzone,
102480c6b8aSGreg Lehey#     kern.maxbcache, kern.maxtsiz, kern.dfldsiz, kern.maxdsiz,
103480c6b8aSGreg Lehey#     kern.dflssiz, kern.maxssiz and kern.sgrowsiz.
104a59d364aSMatthew Dillon#
105480c6b8aSGreg Lehey# The options in /boot/loader.conf override anything in the kernel
106480c6b8aSGreg Lehey# configuration file.  See the function init_param1 in
107480c6b8aSGreg Lehey# sys/kern/subr_param.c for more details.
1083236b30eSGreg Lehey#
109480c6b8aSGreg Lehey
1103236b30eSGreg Leheyoptions 	MAXDSIZ=(1024UL*1024*1024)
1113236b30eSGreg Leheyoptions 	MAXSSIZ=(128UL*1024*1024)
1123236b30eSGreg Leheyoptions 	DFLDSIZ=(1024UL*1024*1024)
1133236b30eSGreg Lehey
1143236b30eSGreg Lehey#
115a59d364aSMatthew Dillon# BLKDEV_IOSIZE sets the default block size used in user block
1163c7c6c12SMike Pritchard# device I/O.  Note that this value will be overridden by the label
117a59d364aSMatthew Dillon# when specifying a block device from a label with a non-0
1188b22cebbSMatthew Dillon# partition blocksize.  The default is PAGE_SIZE.
119a59d364aSMatthew Dillon#
120a59d364aSMatthew Dillonoptions 	BLKDEV_IOSIZE=8192
121a59d364aSMatthew Dillon
122f9fbd1a4SMatt Jacob#
123f9fbd1a4SMatt Jacob# MAXPHYS and DFLTPHYS
124f9fbd1a4SMatt Jacob#
12550a8df3cSAlexander Motin# These are the maximal and safe 'raw' I/O block device access sizes.
12650a8df3cSAlexander Motin# Reads and writes will be split into MAXPHYS chunks for known good
12750a8df3cSAlexander Motin# devices and DFLTPHYS for the rest. Some applications have better
12850a8df3cSAlexander Motin# performance with larger raw I/O access sizes. Note that certain VM
129f9fbd1a4SMatt Jacob# parameters are derived from these values and making them too large
130af52cb44SSergey Kandaurov# can make an unbootable kernel.
131f9fbd1a4SMatt Jacob#
132f9fbd1a4SMatt Jacob# The defaults are 64K and 128K respectively.
133f9fbd1a4SMatt Jacoboptions 	DFLTPHYS=(64*1024)
134f9fbd1a4SMatt Jacoboptions 	MAXPHYS=(128*1024)
135f9fbd1a4SMatt Jacob
136f9fbd1a4SMatt Jacob
137827d623eSJordan K. Hubbard# This allows you to actually store this configuration file into
138272afb65SWojciech A. Koszek# the kernel binary itself. See config(8) for more details.
139827d623eSJordan K. Hubbard#
140827d623eSJordan K. Hubbardoptions 	INCLUDE_CONFIG_FILE     # Include this file in kernel
141827d623eSJordan K. Hubbard
14256fddc5dSBrooks Davis#
14356fddc5dSBrooks Davis# Compile-time defaults for various boot parameters
14456fddc5dSBrooks Davis#
14556fddc5dSBrooks Davisoptions 	BOOTVERBOSE=1
14656fddc5dSBrooks Davisoptions 	BOOTHOWTO=RB_MULTIPLE
14756fddc5dSBrooks Davis
1482a4650ccSKyle Evans#
1492a4650ccSKyle Evans# Compile-time defaults for dmesg boot tagging
1502a4650ccSKyle Evans#
1512a4650ccSKyle Evans# Default boot tag; may use 'kern.boot_tag' loader tunable to override.  The
1522a4650ccSKyle Evans# current boot's tag is also exposed via the 'kern.boot_tag' sysctl.
15345916554SKyle Evansoptions 	BOOT_TAG=\"\"
1542a4650ccSKyle Evans# Maximum boot tag size the kernel's static buffer should accomodate.  Maximum
1552a4650ccSKyle Evans# size for both BOOT_TAG and the assocated tunable.
1562a4650ccSKyle Evansoptions 	BOOT_TAG_SZ=32
1572a4650ccSKyle Evans
158069accaaSPoul-Henning Kampoptions 	GEOM_BDE		# Disk encryption.
1595d9f25dcSRuslan Ermilovoptions 	GEOM_CACHE		# Disk cache.
1607226443dSPawel Jakub Dawidekoptions 	GEOM_CONCAT		# Disk concatenation.
1615ca1fcfeSPawel Jakub Dawidekoptions 	GEOM_ELI		# Disk encryption.
1627226443dSPawel Jakub Dawidekoptions 	GEOM_GATE		# Userland services.
163f348204cSPawel Jakub Dawidekoptions 	GEOM_JOURNAL		# Journaling.
164e1237b28SPawel Jakub Dawidekoptions 	GEOM_LABEL		# Providers labelization.
1651669d8afSAndrew Thompsonoptions 	GEOM_LINUX_LVM		# Linux LVM2 volumes
166fcdb1ffcSAndrey V. Elsukovoptions 	GEOM_MAP		# Map based partitioning
1678a8fbacaSPawel Jakub Dawidekoptions 	GEOM_MIRROR		# Disk mirroring.
168e770bc6bSMatt Jacoboptions 	GEOM_MULTIPATH		# Disk multipath
1697dc92b13SPawel Jakub Dawidekoptions 	GEOM_NOP		# Test class.
1701d3aed33SMarcel Moolenaaroptions 	GEOM_PART_APM		# Apple partitioning
1715aaa8fefSMarcel Moolenaaroptions 	GEOM_PART_BSD		# BSD disklabel
172d68d0cf5SAndrey V. Elsukovoptions 	GEOM_PART_BSD64		# BSD disklabel64
17391e1be8bSMarcel Moolenaaroptions 	GEOM_PART_EBR		# Extended Boot Records
1741d3aed33SMarcel Moolenaaroptions 	GEOM_PART_GPT		# GPT partitioning
175e800e2e1SAndrey V. Elsukovoptions 	GEOM_PART_LDM		# Logical Disk Manager
1766bc50445SMarcel Moolenaaroptions 	GEOM_PART_MBR		# MBR partitioning
17710020e9dSMarcel Moolenaaroptions 	GEOM_PART_VTOC8		# SMI VTOC8 disk label
17889b17223SAlexander Motinoptions 	GEOM_RAID		# Soft RAID functionality.
179e81856c3SPawel Jakub Dawidekoptions 	GEOM_RAID3		# RAID3 functionality.
180560cb857SPawel Jakub Dawidekoptions 	GEOM_SHSEC		# Shared secret.
1817dc92b13SPawel Jakub Dawidekoptions 	GEOM_STRIPE		# Disk striping.
18275261008SMax Khonoptions 	GEOM_UZIP		# Read-only compressed disks
18302e17f0bSMarius Strobloptions 	GEOM_VINUM		# Vinum logical volume manager
184f854db0bSPawel Jakub Dawidekoptions 	GEOM_VIRSTOR		# Virtual storage.
1851c9c6382SRuslan Ermilovoptions 	GEOM_ZERO		# Performance testing helper.
1867b03a440SPoul-Henning Kamp
1878b140d57SMike Smith#
1888b140d57SMike Smith# The root device and filesystem type can be compiled in;
1898b140d57SMike Smith# this provides a fallback option if the root device cannot
1903b6c640cSCrist J. Clark# be correctly guessed by the bootstrap code, or an override if
1918b140d57SMike Smith# the RB_DFLTROOT flag (-r) is specified when booting the kernel.
1928b140d57SMike Smith#
1938b140d57SMike Smithoptions 	ROOTDEVNAME=\"ufs:da0s2e\"
1948b140d57SMike Smith
1956a8d6623SGarrett Wollman
1966a8d6623SGarrett Wollman#####################################################################
197f5d05ac3SJeff Roberson# Scheduler options:
198f5d05ac3SJeff Roberson#
199a61617edSGiorgos Keramidas# Specifying one of SCHED_4BSD or SCHED_ULE is mandatory.  These options
200f5d05ac3SJeff Roberson# select which scheduler is compiled in.
201f5d05ac3SJeff Roberson#
202f5d05ac3SJeff Roberson# SCHED_4BSD is the historical, proven, BSD scheduler.  It has a global run
2031c9c6382SRuslan Ermilov# queue and no CPU affinity which makes it suboptimal for SMP.  It has very
204f5d05ac3SJeff Roberson# good interactivity and priority selection.
205f5d05ac3SJeff Roberson#
206bd675f58SJeff Roberson# SCHED_ULE provides significant performance advantages over 4BSD on many
207bd675f58SJeff Roberson# workloads on SMP machines.  It supports cpu-affinity, per-cpu runqueues
208bd675f58SJeff Roberson# and scheduler locks.  It also has a stronger notion of interactivity
209bd675f58SJeff Roberson# which leads to better responsiveness even on uniprocessor machines.  This
2109c0ef6d5SOliver Fromme# is the default scheduler.
211f5d05ac3SJeff Roberson#
21275a66a92SJeff Roberson# SCHED_STATS is a debugging option which keeps some stats in the sysctl
21375a66a92SJeff Roberson# tree at 'kern.sched.stats' and is useful for debugging scheduling decisions.
21475a66a92SJeff Roberson#
215b998bd92SJeff Robersonoptions 	SCHED_4BSD
21675a66a92SJeff Robersonoptions 	SCHED_STATS
217b998bd92SJeff Roberson#options 	SCHED_ULE
218f5d05ac3SJeff Roberson
219f5d05ac3SJeff Roberson#####################################################################
220477a642cSPeter Wemm# SMP OPTIONS:
221477a642cSPeter Wemm#
222477a642cSPeter Wemm# SMP enables building of a Symmetric MultiProcessor Kernel.
223477a642cSPeter Wemm
224477a642cSPeter Wemm# Mandatory:
225477a642cSPeter Wemmoptions 	SMP			# Symmetric MultiProcessor Kernel
226477a642cSPeter Wemm
227fdce57a0SJohn Baldwin# EARLY_AP_STARTUP releases the Application Processors earlier in the
228fdce57a0SJohn Baldwin# kernel startup process (before devices are probed) rather than at the
229fdce57a0SJohn Baldwin# end.  This is a temporary option for use during the transition from
230fdce57a0SJohn Baldwin# late to early AP startup.
231fdce57a0SJohn Baldwinoptions		EARLY_AP_STARTUP
232fdce57a0SJohn Baldwin
23368b739cdSAttilio Rao# MAXCPU defines the maximum number of CPUs that can boot in the system.
23468b739cdSAttilio Rao# A default value should be already present, for every architecture.
23568b739cdSAttilio Raooptions 	MAXCPU=32
23668b739cdSAttilio Rao
237b6715dabSJeff Roberson# NUMA enables use of Non-Uniform Memory Access policies in various kernel
238b6715dabSJeff Roberson# subsystems.
239b6715dabSJeff Robersonoptions 	NUMA
240b6715dabSJeff Roberson
241941646f5SAttilio Rao# MAXMEMDOM defines the maximum number of memory domains that can boot in the
242941646f5SAttilio Rao# system.  A default value should already be defined by every architecture.
24362d70a81SJohn Baldwinoptions 	MAXMEMDOM=2
24462d70a81SJohn Baldwin
2452498cf8cSJohn Baldwin# ADAPTIVE_MUTEXES changes the behavior of blocking mutexes to spin
2462498cf8cSJohn Baldwin# if the thread that currently owns the mutex is executing on another
247d51e8487SJosh Paetzel# CPU.  This behavior is enabled by default, so this option can be used
248701f1408SScott Long# to disable it.
249701f1408SScott Longoptions 	NO_ADAPTIVE_MUTEXES
2502498cf8cSJohn Baldwin
251cd6e6e4eSJohn Baldwin# ADAPTIVE_RWLOCKS changes the behavior of reader/writer locks to spin
252cd6e6e4eSJohn Baldwin# if the thread that currently owns the rwlock is executing on another
253d51e8487SJosh Paetzel# CPU.  This behavior is enabled by default, so this option can be used
254cd6e6e4eSJohn Baldwin# to disable it.
255cd6e6e4eSJohn Baldwinoptions 	NO_ADAPTIVE_RWLOCKS
256cd6e6e4eSJohn Baldwin
2571ae1c2a3SAttilio Rao# ADAPTIVE_SX changes the behavior of sx locks to spin if the thread that
2581ae1c2a3SAttilio Rao# currently owns the sx lock is executing on another CPU.
259d51e8487SJosh Paetzel# This behavior is enabled by default, so this option can be used to
2601ae1c2a3SAttilio Rao# disable it.
2611ae1c2a3SAttilio Raooptions 	NO_ADAPTIVE_SX
2624e7f640dSJohn Baldwin
263ad27c4c7SJohn Baldwin# MUTEX_NOINLINE forces mutex operations to call functions to perform each
264ad27c4c7SJohn Baldwin# operation rather than inlining the simple cases.  This can be used to
265ad27c4c7SJohn Baldwin# shrink the size of the kernel text segment.  Note that this behavior is
266cf31ff26SRuslan Ermilov# already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
267ad27c4c7SJohn Baldwin# and WITNESS options.
268ad27c4c7SJohn Baldwinoptions 	MUTEX_NOINLINE
269ad27c4c7SJohn Baldwin
2701a5d9b15SJohn Baldwin# RWLOCK_NOINLINE forces rwlock operations to call functions to perform each
2711a5d9b15SJohn Baldwin# operation rather than inlining the simple cases.  This can be used to
2721a5d9b15SJohn Baldwin# shrink the size of the kernel text segment.  Note that this behavior is
273cf31ff26SRuslan Ermilov# already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
2741a5d9b15SJohn Baldwin# and WITNESS options.
2751a5d9b15SJohn Baldwinoptions 	RWLOCK_NOINLINE
2761a5d9b15SJohn Baldwin
2774e7f640dSJohn Baldwin# SX_NOINLINE forces sx lock operations to call functions to perform each
2784e7f640dSJohn Baldwin# operation rather than inlining the simple cases.  This can be used to
2794e7f640dSJohn Baldwin# shrink the size of the kernel text segment.  Note that this behavior is
2804e7f640dSJohn Baldwin# already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
2814e7f640dSJohn Baldwin# and WITNESS options.
2824e7f640dSJohn Baldwinoptions 	SX_NOINLINE
2834e7f640dSJohn Baldwin
2841fe4c660SJohn Baldwin# SMP Debugging Options:
2851fe4c660SJohn Baldwin#
2865b999a6bSDavide Italiano# CALLOUT_PROFILING enables rudimentary profiling of the callwheel data
2875b999a6bSDavide Italiano#	  structure used as backend in callout(9).
2885e21b51bSDavid E. O'Brien# PREEMPTION allows the threads that are in the kernel to be preempted by
2895e21b51bSDavid E. O'Brien#	  higher priority [interrupt] threads.  It helps with interactivity
2905e21b51bSDavid E. O'Brien#	  and allows interrupt threads to run sooner rather than waiting.
29167ab9fd7SJohn Baldwin#	  WARNING! Only tested on amd64 and i386.
2920c0b25aeSJohn Baldwin# FULL_PREEMPTION instructs the kernel to preempt non-realtime kernel
2938c5923d9SCeri Davies#	  threads.  Its sole use is to expose race conditions and other
2940c0b25aeSJohn Baldwin#	  bugs during development.  Enabling this option will reduce
2950c0b25aeSJohn Baldwin#	  performance and increase the frequency of kernel panics by
2960c0b25aeSJohn Baldwin#	  design.  If you aren't sure that you need it then you don't.
2979923b511SScott Long#	  Relies on the PREEMPTION option.  DON'T TURN THIS ON.
298ef0ebfc3SJohn Baldwin# SLEEPQUEUE_PROFILING enables rudimentary profiling of the hash table
29975a66a92SJeff Roberson#	  used to hold active sleep queues as well as sleep wait message
30075a66a92SJeff Roberson#	  frequency.
301ef0ebfc3SJohn Baldwin# TURNSTILE_PROFILING enables rudimentary profiling of the hash table
302ef0ebfc3SJohn Baldwin#	  used to hold active lock queues.
303c6111de5SDavide Italiano# UMTX_PROFILING enables rudimentary profiling of the hash table used
30427c8e6b8SGlen Barber#	  to hold active lock queues.
305aa4019efSRobert Watson# WITNESS enables the witness code which detects deadlocks and cycles
3061fe4c660SJohn Baldwin#         during locking operations.
307e2ee2173SMarcel Moolenaar# WITNESS_KDB causes the witness code to drop into the kernel debugger if
3083c7c6c12SMike Pritchard#	  a lock hierarchy violation occurs or if locks are held when going to
309660d1e3aSJohn Baldwin#	  sleep.
310660d1e3aSJohn Baldwin# WITNESS_SKIPSPIN disables the witness checks on spin mutexes.
3119923b511SScott Longoptions 	PREEMPTION
3120c0b25aeSJohn Baldwinoptions 	FULL_PREEMPTION
3131fe4c660SJohn Baldwinoptions 	WITNESS
314e2ee2173SMarcel Moolenaaroptions 	WITNESS_KDB
315660d1e3aSJohn Baldwinoptions 	WITNESS_SKIPSPIN
3161fe4c660SJohn Baldwin
317cf31ff26SRuslan Ermilov# LOCK_PROFILING - Profiling locks.  See LOCK_PROFILING(9) for details.
31807dba937SKip Macyoptions 	LOCK_PROFILING
31900096801SJohn-Mark Gurney# Set the number of buffers and the hash size.  The hash size MUST be larger
32000096801SJohn-Mark Gurney# than the number of buffers.  Hash size should be prime.
32100096801SJohn-Mark Gurneyoptions 	MPROF_BUFFERS="1536"
32200096801SJohn-Mark Gurneyoptions 	MPROF_HASH_SIZE="1543"
3234db0d7f1SDag-Erling Smørgrav
3245b999a6bSDavide Italiano# Profiling for the callout(9) backend.
3255b999a6bSDavide Italianooptions 	CALLOUT_PROFILING
3265b999a6bSDavide Italiano
327ef0ebfc3SJohn Baldwin# Profiling for internal hash tables.
328ef0ebfc3SJohn Baldwinoptions 	SLEEPQUEUE_PROFILING
329ef0ebfc3SJohn Baldwinoptions 	TURNSTILE_PROFILING
330c6111de5SDavide Italianooptions 	UMTX_PROFILING
331331805a5SDavide Italiano
332ef0ebfc3SJohn Baldwin
333477a642cSPeter Wemm#####################################################################
3346a8d6623SGarrett Wollman# COMPATIBILITY OPTIONS
335690f540cSAndrey A. Chernov
336d3e64681SPoul-Henning Kamp# Old tty interface.
337d3e64681SPoul-Henning Kampoptions 	COMPAT_43TTY
338d3e64681SPoul-Henning Kamp
339f5e4c105SJohn Baldwin# Note that as a general rule, COMPAT_FREEBSD<n> depends on
340f5e4c105SJohn Baldwin# COMPAT_FREEBSD<n+1>, COMPAT_FREEBSD<n+2>, etc.
341f5e4c105SJohn Baldwin
342f0eb293eSAlfred Perlstein# Enable FreeBSD4 compatibility syscalls
343f0eb293eSAlfred Perlsteinoptions 	COMPAT_FREEBSD4
344f0eb293eSAlfred Perlstein
345a01b4125SKen Smith# Enable FreeBSD5 compatibility syscalls
346a01b4125SKen Smithoptions 	COMPAT_FREEBSD5
347a01b4125SKen Smith
3486c9fdda7SRuslan Ermilov# Enable FreeBSD6 compatibility syscalls
3496c9fdda7SRuslan Ermilovoptions 	COMPAT_FREEBSD6
3506c9fdda7SRuslan Ermilov
3515965c4b7SJohn Baldwin# Enable FreeBSD7 compatibility syscalls
3525965c4b7SJohn Baldwinoptions 	COMPAT_FREEBSD7
3535965c4b7SJohn Baldwin
3547d313e7bSJohn Baldwin# Enable FreeBSD9 compatibility syscalls
3557d313e7bSJohn Baldwinoptions 	COMPAT_FREEBSD9
3567d313e7bSJohn Baldwin
3577d313e7bSJohn Baldwin# Enable FreeBSD10 compatibility syscalls
3587d313e7bSJohn Baldwinoptions 	COMPAT_FREEBSD10
3597d313e7bSJohn Baldwin
3607f68a896SMark Johnston# Enable FreeBSD11 compatibility syscalls
3617f68a896SMark Johnstonoptions 	COMPAT_FREEBSD11
3627f68a896SMark Johnston
363d6745408SConrad Meyer# Enable FreeBSD12 compatibility syscalls
364d6745408SConrad Meyeroptions 	COMPAT_FREEBSD12
365d6745408SConrad Meyer
3668d59ecb2SHans Petter Selasky# Enable Linux Kernel Programming Interface
3678d59ecb2SHans Petter Selaskyoptions 	COMPAT_LINUXKPI
3688d59ecb2SHans Petter Selasky
3696a8d6623SGarrett Wollman#
3706a8d6623SGarrett Wollman# These three options provide support for System V Interface
3716a8d6623SGarrett Wollman# Definition-style interprocess communication, in the form of shared
3726a8d6623SGarrett Wollman# memory, semaphores, and message queues, respectively.
3736a8d6623SGarrett Wollman#
3746a8d6623SGarrett Wollmanoptions 	SYSVSHM
3756a8d6623SGarrett Wollmanoptions 	SYSVSEM
3766a8d6623SGarrett Wollmanoptions 	SYSVMSG
3776a8d6623SGarrett Wollman
3786a8d6623SGarrett Wollman
3796a8d6623SGarrett Wollman#####################################################################
3806a8d6623SGarrett Wollman# DEBUGGING OPTIONS
3816a8d6623SGarrett Wollman
3826a8d6623SGarrett Wollman#
383e2ee2173SMarcel Moolenaar# Compile with kernel debugger related code.
3846a8d6623SGarrett Wollman#
385e2ee2173SMarcel Moolenaaroptions 	KDB
386b5d89ca8SBruce Evans
387b5d89ca8SBruce Evans#
388e2ee2173SMarcel Moolenaar# Print a stack trace of the current thread on the console for a panic.
3897085e708SBruce Evans#
390e2ee2173SMarcel Moolenaaroptions 	KDB_TRACE
391e2ee2173SMarcel Moolenaar
392e2ee2173SMarcel Moolenaar#
393e2ee2173SMarcel Moolenaar# Don't enter the debugger for a panic. Intended for unattended operation
394e2ee2173SMarcel Moolenaar# where you may want to enter the debugger from the console, but still want
395e2ee2173SMarcel Moolenaar# the machine to recover from a panic.
396e2ee2173SMarcel Moolenaar#
397e2ee2173SMarcel Moolenaaroptions 	KDB_UNATTENDED
398e2ee2173SMarcel Moolenaar
399e2ee2173SMarcel Moolenaar#
400e2ee2173SMarcel Moolenaar# Enable the ddb debugger backend.
401e2ee2173SMarcel Moolenaar#
402e2ee2173SMarcel Moolenaaroptions 	DDB
4037085e708SBruce Evans
4047085e708SBruce Evans#
405bfdd261eSBruce Evans# Print the numerical value of symbols in addition to the symbolic
406bfdd261eSBruce Evans# representation.
407bfdd261eSBruce Evans#
408bfdd261eSBruce Evansoptions 	DDB_NUMSYM
409bfdd261eSBruce Evans
410bfdd261eSBruce Evans#
411e2ee2173SMarcel Moolenaar# Enable the remote gdb debugger backend.
4120be15decSJohn Baldwin#
413e2ee2173SMarcel Moolenaaroptions 	GDB
414562d05dfSPaul Traina
415562d05dfSPaul Traina#
41637bd4ba9SConrad Meyer# Trashes list pointers when they become invalid (i.e., the element is
41737bd4ba9SConrad Meyer# removed from a list).  Relatively inexpensive to enable.
41837bd4ba9SConrad Meyer#
41937bd4ba9SConrad Meyeroptions 	QUEUE_MACRO_DEBUG_TRASH
42037bd4ba9SConrad Meyer
42137bd4ba9SConrad Meyer#
42237bd4ba9SConrad Meyer# Stores information about the last caller to modify the list object
42337bd4ba9SConrad Meyer# in the list object.  Requires additional memory overhead.
42437bd4ba9SConrad Meyer#
4253fcdcab0SConrad Meyer#options 	QUEUE_MACRO_DEBUG_TRACE
42637bd4ba9SConrad Meyer
42737bd4ba9SConrad Meyer#
428df970488SRobert Watson# SYSCTL_DEBUG enables a 'sysctl' debug tree that can be used to dump the
429df970488SRobert Watson# contents of the registered sysctl nodes on the console.  It is disabled by
4301c9c6382SRuslan Ermilov# default because it generates excessively verbose console output that can
431df970488SRobert Watson# interfere with serial console operation.
432df970488SRobert Watson#
433df970488SRobert Watsonoptions 	SYSCTL_DEBUG
434df970488SRobert Watson
435df970488SRobert Watson#
43621d748a9SAlfred Perlstein# Enable textdump by default, this disables kernel core dumps.
43721d748a9SAlfred Perlstein#
43821d748a9SAlfred Perlsteinoptions		TEXTDUMP_PREFERRED
43921d748a9SAlfred Perlstein
44021d748a9SAlfred Perlstein#
44121d748a9SAlfred Perlstein# Enable extra debug messages while performing textdumps.
44221d748a9SAlfred Perlstein#
44321d748a9SAlfred Perlsteinoptions		TEXTDUMP_VERBOSE
44421d748a9SAlfred Perlstein
44521d748a9SAlfred Perlstein#
44631615ef7SRebecca Cran# NO_SYSCTL_DESCR omits the sysctl node descriptions to save space in the
44731615ef7SRebecca Cran# resulting kernel.
44831615ef7SRebecca Cranoptions		NO_SYSCTL_DESCR
44931615ef7SRebecca Cran
45031615ef7SRebecca Cran#
451d7854da1SMatthew D Fleming# MALLOC_DEBUG_MAXZONES enables multiple uma zones for malloc(9)
452d7854da1SMatthew D Fleming# allocations that are smaller than a page.  The purpose is to isolate
453d7854da1SMatthew D Fleming# different malloc types into hash classes, so that any buffer
454d7854da1SMatthew D Fleming# overruns or use-after-free will usually only affect memory from
455d7854da1SMatthew D Fleming# malloc types in that hash class.  This is purely a debugging tool;
456d7854da1SMatthew D Fleming# by varying the hash function and tracking which hash class was
457d7854da1SMatthew D Fleming# corrupted, the intersection of the hash classes from each instance
458d7854da1SMatthew D Fleming# will point to a single malloc type that is being misused.  At this
459d7854da1SMatthew D Fleming# point inspection or memguard(9) can be used to catch the offending
460d7854da1SMatthew D Fleming# code.
461d7854da1SMatthew D Fleming#
462d7854da1SMatthew D Flemingoptions 	MALLOC_DEBUG_MAXZONES=8
463d7854da1SMatthew D Fleming
464d7854da1SMatthew D Fleming#
465e4eb384bSBosko Milekic# DEBUG_MEMGUARD builds and enables memguard(9), a replacement allocator
466e4eb384bSBosko Milekic# for the kernel used to detect modify-after-free scenarios.  See the
467e4eb384bSBosko Milekic# memguard(9) man page for more information on usage.
468e4eb384bSBosko Milekic#
469e4eb384bSBosko Milekicoptions 	DEBUG_MEMGUARD
470e4eb384bSBosko Milekic
471e4eb384bSBosko Milekic#
472847a2a17SPawel Jakub Dawidek# DEBUG_REDZONE enables buffer underflows and buffer overflows detection for
473847a2a17SPawel Jakub Dawidek# malloc(9).
474847a2a17SPawel Jakub Dawidek#
475847a2a17SPawel Jakub Dawidekoptions 	DEBUG_REDZONE
476847a2a17SPawel Jakub Dawidek
477847a2a17SPawel Jakub Dawidek#
478e79f350dSWarner Losh# EARLY_PRINTF enables support for calling a special printf (eprintf)
479e79f350dSWarner Losh# very early in the kernel (before cn_init() has been called).  This
480e79f350dSWarner Losh# should only be used for debugging purposes early in boot.  Normally,
481e79f350dSWarner Losh# it is not defined.  It is commented out here because this feature
482e79f350dSWarner Losh# isn't generally available. And the required eputc() isn't defined.
483e79f350dSWarner Losh#
484e79f350dSWarner Losh#options	EARLY_PRINTF
485e79f350dSWarner Losh
486e79f350dSWarner Losh#
487ea3fc8e4SJohn Baldwin# KTRACE enables the system-call tracing facility ktrace(2).  To be more
488ea3fc8e4SJohn Baldwin# SMP-friendly, KTRACE uses a worker thread to process most trace events
489ea3fc8e4SJohn Baldwin# asynchronously to the thread generating the event.  This requires a
490ea3fc8e4SJohn Baldwin# pre-allocated store of objects representing trace events.  The
491ea3fc8e4SJohn Baldwin# KTRACE_REQUEST_POOL option specifies the initial size of this store.
492ea3fc8e4SJohn Baldwin# The size of the pool can be adjusted both at boottime and runtime via
493ea3fc8e4SJohn Baldwin# the kern.ktrace_request_pool tunable and sysctl.
4946a8d6623SGarrett Wollman#
4952365e64fSRodney W. Grimesoptions 	KTRACE			#kernel tracing
496ea3fc8e4SJohn Baldwinoptions 	KTRACE_REQUEST_POOL=101
49721c64a07SAndrey A. Chernov
4986a8d6623SGarrett Wollman#
499f7e95633SRuslan Ermilov# KTR is a kernel tracing facility imported from BSD/OS.  It is
500a7bebf90SKris Kennaway# enabled with the KTR option.  KTR_ENTRIES defines the number of
5016e465ac7SDavide Italiano# entries in the circular trace buffer; it may be an arbitrary number.
50236b7dde4SAndriy Gapon# KTR_BOOT_ENTRIES defines the number of entries during the early boot,
50336b7dde4SAndriy Gapon# before malloc(9) is functional.
504a7bebf90SKris Kennaway# KTR_COMPILE defines the mask of events to compile into the kernel as
505a7bebf90SKris Kennaway# defined by the KTR_* constants in <sys/ktr.h>.  KTR_MASK defines the
506a7bebf90SKris Kennaway# initial value of the ktr_mask variable which determines at runtime
507a7bebf90SKris Kennaway# what events to trace.  KTR_CPUMASK determines which CPU's log
508e3709597SAttilio Rao# events, with bit X corresponding to CPU X.  The layout of the string
509d51e8487SJosh Paetzel# passed as KTR_CPUMASK must match a series of bitmasks each of them
510d4a2ab8cSAttilio Rao# separated by the "," character (ie:
511d4a2ab8cSAttilio Rao# KTR_CPUMASK=0xAF,0xFFFFFFFFFFFFFFFF).  KTR_VERBOSE enables
512a7bebf90SKris Kennaway# dumping of KTR events to the console by default.  This functionality
513a7bebf90SKris Kennaway# can be toggled via the debug.ktr_verbose sysctl and defaults to off
514f7e95633SRuslan Ermilov# if KTR_VERBOSE is not defined.  See ktr(4) and ktrdump(8) for details.
515c508c1b6SJohn Baldwin#
516c508c1b6SJohn Baldwinoptions 	KTR
51736b7dde4SAndriy Gaponoptions 	KTR_BOOT_ENTRIES=1024
51836b7dde4SAndriy Gaponoptions 	KTR_ENTRIES=(128*1024)
5196740ed37SGleb Smirnoffoptions 	KTR_COMPILE=(KTR_ALL)
520a9672a81SJohn Baldwinoptions 	KTR_MASK=KTR_INTR
521d4a2ab8cSAttilio Raooptions 	KTR_CPUMASK=0x3
522d902baa4SJohn Baldwinoptions 	KTR_VERBOSE
523c508c1b6SJohn Baldwin
524c508c1b6SJohn Baldwin#
5251c9c6382SRuslan Ermilov# ALQ(9) is a facility for the asynchronous queuing of records from the kernel
526f7e95633SRuslan Ermilov# to a vnode, and is employed by services such as ktr(4) to produce trace
527453ffeefSRobert Watson# files based on a kernel event stream.  Records are written asynchronously
528453ffeefSRobert Watson# in a worker thread.
529453ffeefSRobert Watson#
530453ffeefSRobert Watsonoptions 	ALQ
531453ffeefSRobert Watsonoptions 	KTR_ALQ
532453ffeefSRobert Watson
533453ffeefSRobert Watson#
5345526d2d9SEivind Eklund# The INVARIANTS option is used in a number of source files to enable
5356a8d6623SGarrett Wollman# extra sanity checking of internal structures.  This support is not
5366a8d6623SGarrett Wollman# enabled by default because of the extra time it would take to check
5376a8d6623SGarrett Wollman# for these conditions, which can only occur as a result of
5386a8d6623SGarrett Wollman# programming errors.
5396a8d6623SGarrett Wollman#
5405526d2d9SEivind Eklundoptions 	INVARIANTS
5415526d2d9SEivind Eklund
5425526d2d9SEivind Eklund#
54334b15f2aSJohn Baldwin# The INVARIANT_SUPPORT option makes us compile in support for
54434b15f2aSJohn Baldwin# verifying some of the internal structures.  It is a prerequisite for
54534b15f2aSJohn Baldwin# 'INVARIANTS', as enabling 'INVARIANTS' will make these functions be
54634b15f2aSJohn Baldwin# called.  The intent is that you can set 'INVARIANTS' for single
54734b15f2aSJohn Baldwin# source files (by changing the source file or specifying it on the
54834b15f2aSJohn Baldwin# command line) if you have 'INVARIANT_SUPPORT' enabled.  Also, if you
54934b15f2aSJohn Baldwin# wish to build a kernel module with 'INVARIANTS', then adding
55034b15f2aSJohn Baldwin# 'INVARIANT_SUPPORT' to your kernel will provide all the necessary
55134b15f2aSJohn Baldwin# infrastructure without the added overhead.
55234b15f2aSJohn Baldwin#
55334b15f2aSJohn Baldwinoptions 	INVARIANT_SUPPORT
55434b15f2aSJohn Baldwin
55534b15f2aSJohn Baldwin#
5564ca8c1efSConrad Meyer# The KASSERT_PANIC_OPTIONAL option allows kasserts to fire without
5574ca8c1efSConrad Meyer# necessarily inducing a panic.  Panic is the default behavior, but
5584ca8c1efSConrad Meyer# runtime options can configure it either entirely off, or off with a
5594ca8c1efSConrad Meyer# limit.
5604ca8c1efSConrad Meyer#
5614ca8c1efSConrad Meyeroptions 	KASSERT_PANIC_OPTIONAL
5624ca8c1efSConrad Meyer
5634ca8c1efSConrad Meyer#
5645526d2d9SEivind Eklund# The DIAGNOSTIC option is used to enable extra debugging information
56594851f37SMark Johnston# and invariants checking.  The added checks are too expensive or noisy
56694851f37SMark Johnston# for an INVARIANTS kernel and thus are disabled by default.  It is
56794851f37SMark Johnston# expected that a kernel configured with DIAGNOSTIC will also have the
56894851f37SMark Johnston# INVARIANTS option enabled.
5695526d2d9SEivind Eklund#
5700dc7d907SPoul-Henning Kampoptions 	DIAGNOSTIC
571da59a31cSDavid Greenman
5720dd1eea1SJordan K. Hubbard#
5730b5438c6SRobert Watson# REGRESSION causes optional kernel interfaces necessary only for regression
5743c7c6c12SMike Pritchard# testing to be enabled.  These interfaces may constitute security risks
5750b5438c6SRobert Watson# when enabled, as they permit processes to easily modify aspects of the
5760b5438c6SRobert Watson# run-time environment to reproduce unlikely or unusual (possibly normally
5770b5438c6SRobert Watson# impossible) scenarios.
5780b5438c6SRobert Watson#
5790b5438c6SRobert Watsonoptions 	REGRESSION
5800b5438c6SRobert Watson
5810b5438c6SRobert Watson#
5829c0ef6d5SOliver Fromme# This option lets some drivers co-exist that can't co-exist in a running
583346ebe51SEivind Eklund# system.  This is used to be able to compile all kernel code in one go for
584346ebe51SEivind Eklund# quality assurance purposes (like this file, which the option takes it name
585346ebe51SEivind Eklund# from.)
586346ebe51SEivind Eklund#
587346ebe51SEivind Eklundoptions 	COMPILING_LINT
588346ebe51SEivind Eklund
5893c90d1eaSRobert Watson#
5903c90d1eaSRobert Watson# STACK enables the stack(9) facility, allowing the capture of kernel stack
5913c90d1eaSRobert Watson# for the purpose of procinfo(1), etc.  stack(9) will also be compiled in
5923c90d1eaSRobert Watson# automatically if DDB(4) is compiled into the kernel.
5933c90d1eaSRobert Watson#
5943c90d1eaSRobert Watsonoptions 	STACK
5953c90d1eaSRobert Watson
596cc37baeaSStephen J. Kiernan#
597cc37baeaSStephen J. Kiernan# The NUM_CORE_FILES option specifies the limit for the number of core
598cc37baeaSStephen J. Kiernan# files generated by a particular process, when the core file format
599cc37baeaSStephen J. Kiernan# specifier includes the %I pattern. Since we only have 1 character for
600cc37baeaSStephen J. Kiernan# the core count in the format string, meaning the range will be 0-9, the
601cc37baeaSStephen J. Kiernan# maximum value allowed for this option is 10.
602cc37baeaSStephen J. Kiernan# This core file limit can be adjusted at runtime via the debug.ncores
603cc37baeaSStephen J. Kiernan# sysctl.
604cc37baeaSStephen J. Kiernan#
605cc37baeaSStephen J. Kiernanoptions 	NUM_CORE_FILES=5
606cc37baeaSStephen J. Kiernan
607ae3d6bfaSColin Percival#
608ae3d6bfaSColin Percival# The TSLOG option enables timestamped logging of events, especially
609ae3d6bfaSColin Percival# function entries/exits, in order to track the time spent by the kernel.
610ae3d6bfaSColin Percival# In particular, this is useful when investigating the early boot process,
611ae3d6bfaSColin Percival# before it is possible to use more sophisticated tools like DTrace.
612ae3d6bfaSColin Percival# The TSLOGSIZE option controls the size of the (preallocated, fixed
613ae3d6bfaSColin Percival# length) buffer used for storing these events (default: 262144 records).
614ae3d6bfaSColin Percival#
615ae3d6bfaSColin Percival# For security reasons the TSLOG option should not be enabled on systems
616ae3d6bfaSColin Percival# used in production.
617ae3d6bfaSColin Percival#
618ae3d6bfaSColin Percivaloptions 	TSLOG
619ae3d6bfaSColin Percivaloptions 	TSLOGSIZE=262144
620ae3d6bfaSColin Percival
6216a8d6623SGarrett Wollman
6226a8d6623SGarrett Wollman#####################################################################
623d47cce3eSMarcel Moolenaar# PERFORMANCE MONITORING OPTIONS
624d47cce3eSMarcel Moolenaar
625d47cce3eSMarcel Moolenaar#
626d47cce3eSMarcel Moolenaar# The hwpmc driver that allows the use of in-CPU performance monitoring
6279c0ef6d5SOliver Fromme# counters for performance monitoring.  The base kernel needs to be configured
628d47cce3eSMarcel Moolenaar# with the 'options' line, while the hwpmc device can be either compiled
629d47cce3eSMarcel Moolenaar# in or loaded as a loadable kernel module.
630d47cce3eSMarcel Moolenaar#
631ad3869b4SJoseph Koshy# Additional configuration options may be required on specific architectures,
632ad3869b4SJoseph Koshy# please see hwpmc(4).
633ad3869b4SJoseph Koshy
634d47cce3eSMarcel Moolenaardevice		hwpmc			# Driver (also a loadable module)
635680f1afdSJohn Baldwinoptions 	HWPMC_DEBUG
636d47cce3eSMarcel Moolenaaroptions 	HWPMC_HOOKS		# Other necessary kernel hooks
637d47cce3eSMarcel Moolenaar
638d47cce3eSMarcel Moolenaar
639d47cce3eSMarcel Moolenaar#####################################################################
6406a8d6623SGarrett Wollman# NETWORKING OPTIONS
64170c0b54cSAndrey A. Chernov
6426a8d6623SGarrett Wollman#
643a22fb0daSGeorge V. Neville-Neil# Protocol families
6446a8d6623SGarrett Wollman#
6456a8d6623SGarrett Wollmanoptions 	INET			#Internet communications protocols
64651f4c152SYoshinobu Inoueoptions 	INET6			#IPv6 communications protocols
647a22fb0daSGeorge V. Neville-Neil
648f3e7afe2SHans Petter Selaskyoptions		RATELIMIT		# TX rate limiting support
649f3e7afe2SHans Petter Selasky
6504871fc4aSJulian Elischeroptions 	ROUTETABLES=2		# allocated fibs up to 65536. default is 1.
6514871fc4aSJulian Elischer					# but that would be a bad idea as they are large.
6528b07e49aSJulian Elischer
65309fe6320SNavdeep Parharoptions 	TCP_OFFLOAD		# TCP offload support.
654cca72379SWarner Loshoptions		TCP_RFC7413		# TCP Fast Open
65509fe6320SNavdeep Parhar
65646033610SMatt Macyoptions		TCPHPTS
65746033610SMatt Macy
658a22fb0daSGeorge V. Neville-Neil# In order to enable IPSEC you MUST also add device crypto to
659a22fb0daSGeorge V. Neville-Neil# your kernel configuration
660a22fb0daSGeorge V. Neville-Neiloptions 	IPSEC			#IP security (requires device crypto)
661fcf59617SAndrey V. Elsukov
662fcf59617SAndrey V. Elsukov# Option IPSEC_SUPPORT does not enable IPsec, but makes it possible to
663fcf59617SAndrey V. Elsukov# load it as a kernel module. You still MUST add device crypto to your kernel
664fcf59617SAndrey V. Elsukov# configuration.
665fcf59617SAndrey V. Elsukovoptions		IPSEC_SUPPORT
6662cb64cb2SGeorge V. Neville-Neil#options 	IPSEC_DEBUG		#debug for IP security
667f73bbaf2SDavid Greenman
668b2e60773SJohn Baldwin
669b2e60773SJohn Baldwin# TLS framing and encryption of data transmitted over TCP sockets.
670b2e60773SJohn Baldwinoptions		KERN_TLS		# TLS transmit offload
671b2e60773SJohn Baldwin
672237abf0cSDavide Italiano#
673237abf0cSDavide Italiano# SMB/CIFS requester
674237abf0cSDavide Italiano# NETSMB enables support for SMB protocol, it requires LIBMCHAIN and LIBICONV
675237abf0cSDavide Italiano# options.
676237abf0cSDavide Italianooptions 	NETSMB			#SMB/CIFS requester
677237abf0cSDavide Italiano
678d8589bd5SBoris Popov# mchain library. It can be either loaded as KLD or compiled into kernel
679d8589bd5SBoris Popovoptions 	LIBMCHAIN
680d8589bd5SBoris Popov
6816cd047a0SGleb Smirnoff# libalias library, performing NAT
6826cd047a0SGleb Smirnoffoptions 	LIBALIAS
6836cd047a0SGleb Smirnoff
684f8829a4aSRandall Stewart#
685f8829a4aSRandall Stewart# SCTP is a NEW transport protocol defined by
686f8829a4aSRandall Stewart# RFC2960 updated by RFC3309 and RFC3758.. and
687f8829a4aSRandall Stewart# soon to have a new base RFC and many many more
688f8829a4aSRandall Stewart# extensions. This release supports all the extensions
689f8829a4aSRandall Stewart# including many drafts (most about to become RFC's).
6909c0ef6d5SOliver Fromme# It is the reference implementation of SCTP
691f8829a4aSRandall Stewart# and is quite well tested.
692f8829a4aSRandall Stewart#
693f8829a4aSRandall Stewart# Note YOU MUST have both INET and INET6 defined.
6949c0ef6d5SOliver Fromme# You don't have to enable V6, but SCTP is
6959c0ef6d5SOliver Fromme# dual stacked and so far we have not torn apart
696f8829a4aSRandall Stewart# the V6 and V4.. since an association can span
697f8829a4aSRandall Stewart# both a V6 and V4 address at the SAME time :-)
698f8829a4aSRandall Stewart#
69995033af9SMark Johnston# The SCTP_SUPPORT option does not enable SCTP, but provides the necessary
70095033af9SMark Johnston# support for loading SCTP as a loadable kernel module.
70195033af9SMark Johnston#
702f8829a4aSRandall Stewartoptions 	SCTP
70395033af9SMark Johnstonoptions 	SCTP_SUPPORT
70495033af9SMark Johnston
705f8829a4aSRandall Stewart# There are bunches of options:
706f8829a4aSRandall Stewart# this one turns on all sorts of
707d51e8487SJosh Paetzel# nastily printing that you can
7089c0ef6d5SOliver Fromme# do. It's all controlled by a
709f8829a4aSRandall Stewart# bit mask (settable by socket opt and
710f8829a4aSRandall Stewart# by sysctl). Including will not cause
711f8829a4aSRandall Stewart# logging until you set the bits.. but it
712f8829a4aSRandall Stewart# can be quite verbose.. so without this
713f8829a4aSRandall Stewart# option we don't do any of the tests for
714f8829a4aSRandall Stewart# bits and prints.. which makes the code run
715f8829a4aSRandall Stewart# faster.. if you are not debugging don't use.
716f8829a4aSRandall Stewartoptions 	SCTP_DEBUG
71795033af9SMark Johnston
718f8829a4aSRandall Stewart#
719f8829a4aSRandall Stewart# All that options after that turn on specific types of
720f8829a4aSRandall Stewart# logging. You can monitor CWND growth, flight size
721f8829a4aSRandall Stewart# and all sorts of things. Go look at the code and
722f8829a4aSRandall Stewart# see. I have used this to produce interesting
723f8829a4aSRandall Stewart# charts and graphs as well :->
724f8829a4aSRandall Stewart#
7259c0ef6d5SOliver Fromme# I have not yet committed the tools to get and print
726f8829a4aSRandall Stewart# the logs, I will do that eventually .. before then
727f8829a4aSRandall Stewart# if you want them send me an email rrs@freebsd.org
728f7e95633SRuslan Ermilov# You basically must have ktr(4) enabled for these
729cb7a4976SRandall Stewart# and you then set the sysctl to turn on/off various
730f7e95633SRuslan Ermilov# logging bits. Use ktrdump(8) to pull the log and run
7319c0ef6d5SOliver Fromme# it through a display program.. and graphs and other
732cb7a4976SRandall Stewart# things too.
733f8829a4aSRandall Stewart#
734f8829a4aSRandall Stewartoptions 	SCTP_LOCK_LOGGING
735f8829a4aSRandall Stewartoptions 	SCTP_MBUF_LOGGING
736cb7a4976SRandall Stewartoptions 	SCTP_MBCNT_LOGGING
737cb7a4976SRandall Stewartoptions 	SCTP_PACKET_LOGGING
738cb7a4976SRandall Stewartoptions 	SCTP_LTRACE_CHUNKS
739cb7a4976SRandall Stewartoptions 	SCTP_LTRACE_ERRORS
740cb7a4976SRandall Stewart
74102b199f1SMax Laier# altq(9). Enable the base part of the hooks with the ALTQ option.
74202b199f1SMax Laier# Individual disciplines must be built into the base system and can not be
743cceffdeeSAndrew Thompson# loaded as modules at this point. ALTQ requires a stable TSC so if yours is
744cceffdeeSAndrew Thompson# broken or changes with CPU throttling then you must also have the ALTQ_NOPCC
745cceffdeeSAndrew Thompson# option.
74602b199f1SMax Laieroptions 	ALTQ
747755911cdSGreg Leheyoptions 	ALTQ_CBQ	# Class Based Queueing
748c7219167SMax Laieroptions 	ALTQ_RED	# Random Early Detection
74902b199f1SMax Laieroptions 	ALTQ_RIO	# RED In/Out
750a13bfb09SLuiz Otavio O Souzaoptions 	ALTQ_CODEL	# CoDel Active Queueing
75102b199f1SMax Laieroptions 	ALTQ_HFSC	# Hierarchical Packet Scheduler
752a5b789f6SErmal Luçioptions 	ALTQ_FAIRQ	# Fair Packet Scheduler
75302b199f1SMax Laieroptions 	ALTQ_CDNR	# Traffic conditioner
7543c7c6c12SMike Pritchardoptions 	ALTQ_PRIQ	# Priority Queueing
755cceffdeeSAndrew Thompsonoptions 	ALTQ_NOPCC	# Required if the TSC is unusable
75602b199f1SMax Laieroptions 	ALTQ_DEBUG
75702b199f1SMax Laier
7584cf49a43SJulian Elischer# netgraph(4). Enable the base netgraph code with the NETGRAPH option.
7594cf49a43SJulian Elischer# Individual node types can be enabled with the corresponding option
7604cf49a43SJulian Elischer# listed below; however, this is not strictly necessary as netgraph
7614cf49a43SJulian Elischer# will automatically load the corresponding KLD module if the node type
76292a3e552SArchie Cobbs# is not already compiled into the kernel. Each type below has a
76392a3e552SArchie Cobbs# corresponding man page, e.g., ng_async(8).
7644cf49a43SJulian Elischeroptions 	NETGRAPH		# netgraph(4) system
76573e87266SGleb Smirnoffoptions 	NETGRAPH_DEBUG		# enable extra debugging, this
76673e87266SGleb Smirnoff					# affects netgraph(4) and nodes
76773e87266SGleb Smirnoff# Node types
7684cf49a43SJulian Elischeroptions 	NETGRAPH_ASYNC
769bde778e9SBenno Riceoptions 	NETGRAPH_ATMLLC
770b84b10f9SMaksim Yevmenkinoptions 	NETGRAPH_ATM_ATMPIF
771b84b10f9SMaksim Yevmenkinoptions 	NETGRAPH_BLUETOOTH		# ng_bluetooth(4)
772b84b10f9SMaksim Yevmenkinoptions 	NETGRAPH_BLUETOOTH_BT3C		# ng_bt3c(4)
773b84b10f9SMaksim Yevmenkinoptions 	NETGRAPH_BLUETOOTH_HCI		# ng_hci(4)
774b84b10f9SMaksim Yevmenkinoptions 	NETGRAPH_BLUETOOTH_L2CAP	# ng_l2cap(4)
775b84b10f9SMaksim Yevmenkinoptions 	NETGRAPH_BLUETOOTH_SOCKET	# ng_btsocket(4)
776b84b10f9SMaksim Yevmenkinoptions 	NETGRAPH_BLUETOOTH_UBT		# ng_ubt(4)
777b84b10f9SMaksim Yevmenkinoptions 	NETGRAPH_BLUETOOTH_UBTBCMFW	# ubtbcmfw(4)
77892a3e552SArchie Cobbsoptions 	NETGRAPH_BPF
779901fadf7SArchie Cobbsoptions 	NETGRAPH_BRIDGE
7807d3b4a08SAlexander Motinoptions 	NETGRAPH_CAR
781b9e0c8c2SMaxim Sobolevoptions 	NETGRAPH_CHECKSUM
7824cf49a43SJulian Elischeroptions 	NETGRAPH_CISCO
7839e6f1d3bSGleb Smirnoffoptions 	NETGRAPH_DEFLATE
78431578ac8SGleb Smirnoffoptions 	NETGRAPH_DEVICE
7854cf49a43SJulian Elischeroptions 	NETGRAPH_ECHO
7869d564133SRobert Watsonoptions 	NETGRAPH_EIFACE
78746aa8b9bSArchie Cobbsoptions 	NETGRAPH_ETHER
7884cf49a43SJulian Elischeroptions 	NETGRAPH_FRAME_RELAY
78937379158SBrooks Davisoptions 	NETGRAPH_GIF
79037379158SBrooks Davisoptions 	NETGRAPH_GIF_DEMUX
7914cf49a43SJulian Elischeroptions 	NETGRAPH_HOLE
7924cf49a43SJulian Elischeroptions 	NETGRAPH_IFACE
79337379158SBrooks Davisoptions 	NETGRAPH_IP_INPUT
794f2a7ef4eSGleb Smirnoffoptions 	NETGRAPH_IPFW
79548e94174SArchie Cobbsoptions 	NETGRAPH_KSOCKET
796901fadf7SArchie Cobbsoptions 	NETGRAPH_L2TP
7974cf49a43SJulian Elischeroptions 	NETGRAPH_LMI
798ec5753e0SPedro F. Giffunioptions 	NETGRAPH_MPPC_COMPRESSION
799a2b408adSArchie Cobbsoptions 	NETGRAPH_MPPC_ENCRYPTION
800cec50deaSGleb Smirnoffoptions 	NETGRAPH_NETFLOW
8016cd047a0SGleb Smirnoffoptions 	NETGRAPH_NAT
8027d7a5b89SArchie Cobbsoptions 	NETGRAPH_ONE2MANY
803d05181f9SAndrey V. Elsukovoptions 	NETGRAPH_PATCH
804991633afSMarko Zecoptions 	NETGRAPH_PIPE
805b0801bacSArchie Cobbsoptions 	NETGRAPH_PPP
806b0801bacSArchie Cobbsoptions 	NETGRAPH_PPPOE
807add85a1dSArchie Cobbsoptions 	NETGRAPH_PPTPGRE
8089e6f1d3bSGleb Smirnoffoptions 	NETGRAPH_PRED1
8094cf49a43SJulian Elischeroptions 	NETGRAPH_RFC1490
810b0801bacSArchie Cobbsoptions 	NETGRAPH_SOCKET
8114d60fee2SBrooks Davisoptions 	NETGRAPH_SPLIT
8120a6818e2SRoman Kurakinoptions 	NETGRAPH_SPPP
813d473c9d5SGleb Smirnoffoptions 	NETGRAPH_TAG
814e9110049SGleb Smirnoffoptions 	NETGRAPH_TCPMSS
8154cf49a43SJulian Elischeroptions 	NETGRAPH_TEE
8164cf49a43SJulian Elischeroptions 	NETGRAPH_UI
817b58a8a3bSJulian Elischeroptions 	NETGRAPH_VJC
818b4263060SRuslan Ermilovoptions 	NETGRAPH_VLAN
819666ea1b6SMaksim Yevmenkin
82002152e8fSHartmut Brandt# NgATM - Netgraph ATM
82102152e8fSHartmut Brandtoptions 	NGATM_ATM
822027ebd2fSHartmut Brandtoptions 	NGATM_ATMBASE
823027ebd2fSHartmut Brandtoptions 	NGATM_SSCOP
824027ebd2fSHartmut Brandtoptions 	NGATM_SSCFU
825ed91f9a5SHartmut Brandtoptions 	NGATM_UNI
826a7e22394SHartmut Brandtoptions 	NGATM_CCATM
82702152e8fSHartmut Brandt
828c9953c3bSPeter Wemmdevice		mn	# Munich32x/Falc54 Nx64kbit/sec cards.
8293cf4d0bfSPoul-Henning Kamp
8300990ef0aSKevin Lo# Network stack virtualization.
8318e94025bSBjoern A. Zeeboptions	VIMAGE
8328e94025bSBjoern A. Zeeboptions	VNET_DEBUG	# debug for VIMAGE
8330990ef0aSKevin Lo
8346a8d6623SGarrett Wollman#
8356a8d6623SGarrett Wollman# Network interfaces:
836f71c01ccSPeter Wemm#  The `loop' device is MANDATORY when networking is enabled.
83736782d14SWojciech A. Koszekdevice		loop
83836782d14SWojciech A. Koszek
839f71c01ccSPeter Wemm#  The `ether' device provides generic code to handle
8409d5abbddSJens Schweikhardt#  Ethernets; it is MANDATORY when an Ethernet device driver is
84169f0fecbSBrooks Davis#  configured.
84236782d14SWojciech A. Koszekdevice		ether
84336782d14SWojciech A. Koszek
844fc67901fSYaroslav Tykhiy#  The `vlan' device implements the VLAN tagging of Ethernet frames
8459d9ab10eSAntoine Brodin#  according to IEEE 802.1Q.
84636782d14SWojciech A. Koszekdevice		vlan
84736782d14SWojciech A. Koszek
848007054f0SBryan Venteicher# The `vxlan' device implements the VXLAN encapsulation of Ethernet
849007054f0SBryan Venteicher# frames in UDP packets according to RFC7348.
850007054f0SBryan Venteicherdevice		vxlan
851007054f0SBryan Venteicher
85257a42501SGarrett Wollman#  The `wlan' device provides generic code to support 802.11
85367e4db77SSam Leffler#  drivers, including host AP mode; it is MANDATORY for the wi,
854f4463607SSam Leffler#  and ath drivers and will eventually be required by all 802.11 drivers.
85536782d14SWojciech A. Koszekdevice		wlan
85636782d14SWojciech A. Koszekoptions 	IEEE80211_DEBUG		#enable debugging msgs
85759aa14a9SRui Paulooptions 	IEEE80211_SUPPORT_MESH	#enable 802.11s D3.0 support
85859aa14a9SRui Paulooptions 	IEEE80211_SUPPORT_TDMA	#enable TDMA support
85936782d14SWojciech A. Koszek
86067e4db77SSam Leffler#  The `wlan_wep', `wlan_tkip', and `wlan_ccmp' devices provide
86167e4db77SSam Leffler#  support for WEP, TKIP, and AES-CCMP crypto protocols optionally
86267e4db77SSam Leffler#  used with 802.11 devices that depend on the `wlan' module.
86336782d14SWojciech A. Koszekdevice		wlan_wep
86436782d14SWojciech A. Koszekdevice		wlan_ccmp
86536782d14SWojciech A. Koszekdevice		wlan_tkip
86636782d14SWojciech A. Koszek
86767e4db77SSam Leffler#  The `wlan_xauth' device provides support for external (i.e. user-mode)
86867e4db77SSam Leffler#  authenticators for use with 802.11 drivers that use the `wlan'
86934341a71SJohn Baldwin#  module and support 802.1x and/or WPA security protocols.
87036782d14SWojciech A. Koszekdevice		wlan_xauth
87136782d14SWojciech A. Koszek
87267e4db77SSam Leffler#  The `wlan_acl' device provides a MAC-based access control mechanism
87367e4db77SSam Leffler#  for use with 802.11 drivers operating in ap mode and using the
87467e4db77SSam Leffler#  `wlan' module.
87536782d14SWojciech A. Koszek#  The 'wlan_amrr' device provides AMRR transmit rate control algorithm
87636782d14SWojciech A. Koszekdevice		wlan_acl
87736782d14SWojciech A. Koszekdevice		wlan_amrr
87836782d14SWojciech A. Koszek
879f71c01ccSPeter Wemm#  The `sppp' device serves a similar role for certain types
880e7c234a1SPeter Wemm#  of synchronous PPP links (like `cx', `ar').
88136782d14SWojciech A. Koszekdevice		sppp
88236782d14SWojciech A. Koszek
883f71c01ccSPeter Wemm#  The `bpf' device enables the Berkeley Packet Filter.  Be
884d29895dcSGarrett Wollman#  aware of the legal and administrative consequences of enabling this
8859c0ef6d5SOliver Fromme#  option.  DHCP requires bpf.
88636782d14SWojciech A. Koszekdevice		bpf
88736782d14SWojciech A. Koszek
888e4b68814SLuigi Rizzo#  The `netmap' device implements memory-mapped access to network
889e4b68814SLuigi Rizzo#  devices from userspace, enabling wire-speed packet capture and
890e4b68814SLuigi Rizzo#  generation even at 10Gbit/s. Requires support in the device
891e4b68814SLuigi Rizzo#  driver. Supported drivers are ixgbe, e1000, re.
892e4b68814SLuigi Rizzodevice		netmap
893e4b68814SLuigi Rizzo
894f71c01ccSPeter Wemm#  The `disc' device implements a minimal network interface,
89559d8d13fSGarrett Wollman#  which throws away all packets sent and never receives any.  It is
89670e04181SYaroslav Tykhiy#  included for testing and benchmarking purposes.
89736782d14SWojciech A. Koszekdevice		disc
89836782d14SWojciech A. Koszek
899d0ea4743SBjoern A. Zeeb# The `epair' device implements a virtual back-to-back connected Ethernet
900d0ea4743SBjoern A. Zeeb# like interface pair.
901d0ea4743SBjoern A. Zeebdevice		epair
902d0ea4743SBjoern A. Zeeb
90363518eccSYaroslav Tykhiy#  The `edsc' device implements a minimal Ethernet interface,
90463518eccSYaroslav Tykhiy#  which discards all packets sent and receives none.
90536782d14SWojciech A. Koszekdevice		edsc
90636782d14SWojciech A. Koszek
907251a32b5SKyle Evans#  The `tuntap' device implements (user-)ppp, nos-tun(8) and a pty-like virtual
908251a32b5SKyle Evans#  Ethernet interface
909251a32b5SKyle Evansdevice		tuntap
91036782d14SWojciech A. Koszek
911f71c01ccSPeter Wemm#  The `gif' device implements IPv6 over IP4 tunneling,
912cfa1ca9dSYoshinobu Inoue#  IPv4 over IPv6 tunneling, IPv4 over IPv4 tunneling and
913cfa1ca9dSYoshinobu Inoue#  IPv6 over IPv6 tunneling.
914f325335cSAndrey V. Elsukov#  The `gre' device implements GRE (Generic Routing Encapsulation) tunneling,
915f325335cSAndrey V. Elsukov#  as specified in the RFC 2784 and RFC 2890.
916f325335cSAndrey V. Elsukov#  The `me' device implements Minimal Encapsulation within IPv4 as
917f325335cSAndrey V. Elsukov#  specified in the RFC 2004.
918f57fc21cSJeroen Ruigrok van der Werven#  The XBONEHACK option allows the same pair of addresses to be configured on
919f57fc21cSJeroen Ruigrok van der Werven#  multiple gif interfaces.
92036782d14SWojciech A. Koszekdevice		gif
92136782d14SWojciech A. Koszekdevice		gre
922f325335cSAndrey V. Elsukovdevice		me
92336782d14SWojciech A. Koszekoptions 	XBONEHACK
92436782d14SWojciech A. Koszek
925d5015639SMunechika SUMIKAWA#  The `stf' device implements 6to4 encapsulation.
92636782d14SWojciech A. Koszekdevice		stf
92736782d14SWojciech A. Koszek
9288d69c48bSMax Laier# The pf packet filter consists of three devices:
9298d69c48bSMax Laier#  The `pf' device provides /dev/pf and the firewall code itself.
9308d69c48bSMax Laier#  The `pflog' device provides the pflog0 interface which logs packets.
9318d69c48bSMax Laier#  The `pfsync' device provides the pfsync0 interface used for
9328d69c48bSMax Laier#   synchronization of firewall state tables (over the net).
93336782d14SWojciech A. Koszekdevice		pf
93436782d14SWojciech A. Koszekdevice		pflog
93536782d14SWojciech A. Koszekdevice		pfsync
93636782d14SWojciech A. Koszek
93736782d14SWojciech A. Koszek# Bridge interface.
93836782d14SWojciech A. Koszekdevice		if_bridge
93936782d14SWojciech A. Koszek
94036782d14SWojciech A. Koszek# Common Address Redundancy Protocol. See carp(4) for more details.
94136782d14SWojciech A. Koszekdevice		carp
94236782d14SWojciech A. Koszek
94336782d14SWojciech A. Koszek# IPsec interface.
94436782d14SWojciech A. Koszekdevice		enc
94536782d14SWojciech A. Koszek
94636782d14SWojciech A. Koszek# Link aggregation interface.
94736782d14SWojciech A. Koszekdevice		lagg
94836782d14SWojciech A. Koszek
9498d69c48bSMax Laier#
9506a8d6623SGarrett Wollman# Internet family options:
9516a8d6623SGarrett Wollman#
9526a8d6623SGarrett Wollman# MROUTING enables the kernel multicast packet forwarder, which works
9530948f0a2SBruce M Simpson# with mrouted and XORP.
954e0f688baSJeffrey Hsu#
955d29895dcSGarrett Wollman# IPFIREWALL enables support for IP firewall construction, in
956ff6f025aSAlexander Langer# conjunction with the `ipfw' program.  IPFIREWALL_VERBOSE sends
957ff6f025aSAlexander Langer# logged packets to the system logger.  IPFIREWALL_VERBOSE_LIMIT
958ff6f025aSAlexander Langer# limits the number of times a matching entry can be logged.
959ab6e02daSJordan K. Hubbard#
960ab6e02daSJordan K. Hubbard# WARNING:  IPFIREWALL defaults to a policy of "deny ip from any to any"
961ab6e02daSJordan K. Hubbard# and if you do not add other rules during startup to allow access,
962a236d14cSJordan K. Hubbard# YOU WILL LOCK YOURSELF OUT.  It is suggested that you set firewall_type=open
963ab6e02daSJordan K. Hubbard# in /etc/rc.conf when first enabling this feature, then refining the
964ab6e02daSJordan K. Hubbard# firewall rules in /etc/rc.firewall after you've tested that the new kernel
965ab6e02daSJordan K. Hubbard# feature works properly.
9668dd4744eSJordan K. Hubbard#
967ffdd472dSPeter Wemm# IPFIREWALL_DEFAULT_TO_ACCEPT causes the default rule (at boot) to
968ffdd472dSPeter Wemm# allow everything.  Use with care, if a cracker can crash your
969ffdd472dSPeter Wemm# firewall machine, they can get to your protected machines.  However,
970ffdd472dSPeter Wemm# if you are using it as an as-needed filter for specific problems as
971ffdd472dSPeter Wemm# they arise, then this may be for you.  Changing the default to 'allow'
972ffdd472dSPeter Wemm# means that you won't get stuck if the kernel and /sbin/ipfw binary get
973ffdd472dSPeter Wemm# out of sync.
974d29895dcSGarrett Wollman#
97584bb6a2eSAndre Oppermann# IPDIVERT enables the divert IP sockets, used by ``ipfw divert''.  It
97684bb6a2eSAndre Oppermann# depends on IPFIREWALL if compiled into the kernel.
97793e0e116SJulian Elischer#
97861c0e134SPaolo Pisati# IPFIREWALL_NAT adds support for in kernel nat in ipfw, and it requires
979531c890bSPaolo Pisati# LIBALIAS.
98061c0e134SPaolo Pisati#
981d8caf56eSAndrey V. Elsukov# IPFIREWALL_NAT64 adds support for in kernel NAT64 in ipfw.
982d8caf56eSAndrey V. Elsukov#
983b867e84eSAndrey V. Elsukov# IPFIREWALL_NPTV6 adds support for in kernel NPTv6 in ipfw.
984b867e84eSAndrey V. Elsukov#
985aac74aeaSAndrey V. Elsukov# IPFIREWALL_PMOD adds support for protocols modification module. Currently
986aac74aeaSAndrey V. Elsukov# it supports only TCP MSS modification.
987aac74aeaSAndrey V. Elsukov#
9881b968362SDag-Erling Smørgrav# IPSTEALTH enables code to support stealth forwarding (i.e., forwarding
9891c9c6382SRuslan Ermilov# packets without touching the TTL).  This can be useful to hide firewalls
9901b968362SDag-Erling Smørgrav# from traceroute and similar tools.
9911b968362SDag-Erling Smørgrav#
9927f7ef494SGleb Smirnoff# PF_DEFAULT_TO_DROP causes the default pf(4) rule to deny everything.
9937f7ef494SGleb Smirnoff#
9945e331acdSGarrett Wollman# TCPDEBUG enables code which keeps traces of the TCP state machine
9955e331acdSGarrett Wollman# for sockets with the SO_DEBUG option set, which can then be examined
9965e331acdSGarrett Wollman# using the trpt(8) utility.
99765e8111fSBruce Evans#
99886a996e6SHiren Panchasara# TCPPCAP enables code which keeps the last n packets sent and received
99986a996e6SHiren Panchasara# on a TCP socket.
100086a996e6SHiren Panchasara#
1001e24e5683SJonathan T. Looney# TCP_BLACKBOX enables enhanced TCP event logging.
1002e24e5683SJonathan T. Looney#
1003bd79708dSJonathan T. Looney# TCP_HHOOK enables the hhook(9) framework hooks for the TCP stack.
1004bd79708dSJonathan T. Looney#
100565e4e499SGleb Smirnoff# RADIX_MPATH provides support for equal-cost multi-path routing.
10069731596aSGleb Smirnoff#
1007e3178a06SJordan K. Hubbardoptions 	MROUTING		# Multicast routing
1008d29895dcSGarrett Wollmanoptions 	IPFIREWALL		#firewall
10094479e72cSCrist J. Clarkoptions 	IPFIREWALL_VERBOSE	#enable logging to syslogd(8)
10105895e3c8SPeter Wemmoptions 	IPFIREWALL_VERBOSE_LIMIT=100	#limit verbosity
1011e43a9900SAlexander Langeroptions 	IPFIREWALL_DEFAULT_TO_ACCEPT	#allow everything by default
101261c0e134SPaolo Pisatioptions 	IPFIREWALL_NAT		#ipfw kernel nat support
1013d8caf56eSAndrey V. Elsukovoptions 	IPFIREWALL_NAT64	#ipfw kernel NAT64 support
1014b867e84eSAndrey V. Elsukovoptions 	IPFIREWALL_NPTV6	#ipfw kernel IPv6 NPT support
101593e0e116SJulian Elischeroptions 	IPDIVERT		#divert sockets
10169cc86ee9SGuido van Rooijoptions 	IPFILTER		#ipfilter support
10179cc86ee9SGuido van Rooijoptions 	IPFILTER_LOG		#ipfilter logging
10180c3757dfSDarren Reedoptions 	IPFILTER_LOOKUP		#ipfilter pools
10198259bcdfSJeroen Ruigrok van der Wervenoptions 	IPFILTER_DEFAULT_BLOCK	#block all packets by default
10201b968362SDag-Erling Smørgravoptions 	IPSTEALTH		#support for stealth forwarding
10217f7ef494SGleb Smirnoffoptions 	PF_DEFAULT_TO_DROP	#drop everything by default
102265e8111fSBruce Evansoptions 	TCPDEBUG
102386a996e6SHiren Panchasaraoptions 	TCPPCAP
1024e24e5683SJonathan T. Looneyoptions 	TCP_BLACKBOX
1025bd79708dSJonathan T. Looneyoptions 	TCP_HHOOK
10269731596aSGleb Smirnoffoptions 	RADIX_MPATH
10276a8d6623SGarrett Wollman
102853dcc544SMike Silbersack# The MBUF_STRESS_TEST option enables options which create
102953dcc544SMike Silbersack# various random failures / extreme cases related to mbuf
1030f8f8803bSBruce Evans# functions.  See mbuf(9) for a list of available test cases.
10314e77d255SJulian Elischer# MBUF_PROFILING enables code to profile the mbuf chains
10326eeac1d9SJulian Elischer# exiting the system (via participating interfaces) and
10336eeac1d9SJulian Elischer# return a logarithmic histogram of monitored parameters
10346eeac1d9SJulian Elischer# (e.g. packet size, wasted space, number of mbufs in chain).
103553dcc544SMike Silbersackoptions 	MBUF_STRESS_TEST
10366eeac1d9SJulian Elischeroptions 	MBUF_PROFILING
10374a5ccac7SMike Silbersack
10389c0ef6d5SOliver Fromme# Statically link in accept filters
1039a79b7128SAlfred Perlsteinoptions 	ACCEPT_FILTER_DATA
1040744eaff7SDavid Maloneoptions 	ACCEPT_FILTER_DNS
1041a79b7128SAlfred Perlsteinoptions 	ACCEPT_FILTER_HTTP
1042a79b7128SAlfred Perlstein
1043b52f8407SBruce M Simpson# TCP_SIGNATURE adds support for RFC 2385 (TCP-MD5) digests. These are
1044b52f8407SBruce M Simpson# carried in TCP option 19. This option is commonly used to protect
1045b52f8407SBruce M Simpson# TCP sessions (e.g. BGP) where IPSEC is not available nor desirable.
1046b52f8407SBruce M Simpson# This is enabled on a per-socket basis using the TCP_MD5SIG socket option.
1047fcf59617SAndrey V. Elsukov# This requires the use of 'device crypto' and either 'options IPSEC' or
1048fcf59617SAndrey V. Elsukov# 'options IPSEC_SUPPORT'.
10495164136dSBjoern A. Zeeboptions 	TCP_SIGNATURE		#include support for RFC 2385
1050b52f8407SBruce M Simpson
1051f8f8803bSBruce Evans# DUMMYNET enables the "dummynet" bandwidth limiter.  You need IPFIREWALL
1052f8f8803bSBruce Evans# as well.  See dummynet(4) and ipfw(8) for more info.  When you run
1053358f8d82SRobert Watson# DUMMYNET it is advisable to also have at least "options HZ=1000" to achieve
1054358f8d82SRobert Watson# a smooth scheduling of the traffic.
105568ec4eb6SLuigi Rizzooptions 	DUMMYNET
105668e9d934SLuigi Rizzo
1057dda17b36SConrad Meyer# The DEBUGNET option enables a basic debug/panic-time networking API.  It
1058dda17b36SConrad Meyer# is used by NETDUMP and NETGDB.
1059dda17b36SConrad Meyeroptions 	DEBUGNET
1060dda17b36SConrad Meyer
1061e5054602SMark Johnston# The NETDUMP option enables netdump(4) client support in the kernel.
1062e5054602SMark Johnston# This allows a panicking kernel to transmit a kernel dump to a remote host.
1063e5054602SMark Johnstonoptions 	NETDUMP
1064e5054602SMark Johnston
1065dda17b36SConrad Meyer# The NETGDB option enables netgdb(4) support in the kernel.  This allows a
1066dda17b36SConrad Meyer# panicking kernel to be debugged as a GDB remote over the network.
1067dda17b36SConrad Meyeroptions 	NETGDB
10687790c8c1SConrad Meyer
10696a8d6623SGarrett Wollman#####################################################################
10706a8d6623SGarrett Wollman# FILESYSTEM OPTIONS
1071e3178a06SJordan K. Hubbard
10722365e64fSRodney W. Grimes#
10733f850e6aSKonstantin Belousov# Only the root filesystem needs to be statically compiled or preloaded
10743f850e6aSKonstantin Belousov# as module; everything else will be automatically loaded at mount
10753f850e6aSKonstantin Belousov# time.  Some people still prefer to statically compile other
10763f850e6aSKonstantin Belousov# filesystems as well.
10776a8d6623SGarrett Wollman#
107855793cdcSAttilio Rao# NB: The UNION filesystem was known to be buggy in the past.  It is now
1079534046e3SRong-En Fan# being actively maintained, although there are still some issues being
1080534046e3SRong-En Fan# resolved.
10812365e64fSRodney W. Grimes#
1082f1a9c715SDavid Greenman
10836a8d6623SGarrett Wollman# One of these is mandatory:
10846a8d6623SGarrett Wollmanoptions 	FFS			#Fast filesystem
1085c15882f0SRick Macklemoptions 	NFSCL			#Network File System client
10866a8d6623SGarrett Wollman
10876a8d6623SGarrett Wollman# The rest are optional:
10883914ddf8SEdward Tomasz Napieralaoptions 	AUTOFS			#Automounter filesystem
10895895e3c8SPeter Wemmoptions 	CD9660			#ISO 9660 filesystem
109099d300a1SRuslan Ermilovoptions 	FDESCFS			#File descriptor filesystem
1091123af6ecSAlan Somersoptions 	FUSEFS			#FUSEFS support module
1092dba11ce5SAlexander Langeroptions 	MSDOSFS			#MS DOS File System (FAT, FAT32)
1093dfdcada3SDoug Rabsonoptions 	NFSLOCKD		#Network Lock Manager
10943e32dff5SJohn Baldwinoptions 	NFSD			#Network Filesystem Server
10959c0ef6d5SOliver Frommeoptions 	KGSSAPI			#Kernel GSSAPI implementation
10961bea7c61SMaxim Sobolev
1097f1a9c715SDavid Greenmanoptions 	NULLFS			#NULL filesystem
10984d2647f9SDag-Erling Smørgravoptions 	PROCFS			#Process filesystem (requires PSEUDOFS)
109952ebde4fSDag-Erling Smørgravoptions 	PSEUDOFS		#Pseudo-filesystem framework
1100bcc1205cSDag-Erling Smørgravoptions 	PSEUDOFS_TRACE		#Debugging support for PSEUDOFS
1101237abf0cSDavide Italianooptions 	SMBFS			#SMB/CIFS filesystem
110278920d0fSKevin Looptions 	TMPFS			#Efficient memory filesystem
1103df263cbdSScott Longoptions 	UDF			#Universal Disk Format
110499d300a1SRuslan Ermilovoptions 	UNIONFS			#Union filesystem
1105bcf77694SPeter Wemm# The xFS_ROOT options REQUIRE the associated ``options xFS''
1106bcf77694SPeter Wemmoptions 	NFS_ROOT		#NFS usable as root device
1107f1a9c715SDavid Greenman
1108d0a28bafSAlexander Langer# Soft updates is a technique for improving filesystem speed and
1109d61e6649SAlexander Langer# making abrupt shutdown less risky.
1110f8f8d7afSEivind Eklund#
11113d5c4fdcSPoul-Henning Kampoptions 	SOFTUPDATES
1112b1897c19SJulian Elischer
1113a64ed089SRobert Watson# Extended attributes allow additional data to be associated with files,
111451be6918SChris D. Faulhaber# and is used for ACLs, Capabilities, and MAC labels.
111551be6918SChris D. Faulhaber# See src/sys/ufs/ufs/README.extattr for more information.
111649993db0SRobert Watsonoptions 	UFS_EXTATTR
111749993db0SRobert Watsonoptions 	UFS_EXTATTR_AUTOSTART
1118a64ed089SRobert Watson
111951be6918SChris D. Faulhaber# Access Control List support for UFS filesystems.  The current ACL
112051be6918SChris D. Faulhaber# implementation requires extended attribute support, UFS_EXTATTR,
112151be6918SChris D. Faulhaber# for the underlying filesystem.
112251be6918SChris D. Faulhaber# See src/sys/ufs/ufs/README.acls for more information.
112351be6918SChris D. Faulhaberoptions 	UFS_ACL
112451be6918SChris D. Faulhaber
11259b5ad47fSIan Dowse# Directory hashing improves the speed of operations on very large
11269b5ad47fSIan Dowse# directories at the expense of some memory.
11279b5ad47fSIan Dowseoptions 	UFS_DIRHASH
11289b5ad47fSIan Dowse
1129f348204cSPawel Jakub Dawidek# Gjournal-based UFS journaling support.
1130f348204cSPawel Jakub Dawidekoptions 	UFS_GJOURNAL
1131f348204cSPawel Jakub Dawidek
113271e4fff8SPoul-Henning Kamp# Make space in the kernel for a root filesystem on a md device.
113371e4fff8SPoul-Henning Kamp# Define to the number of kilobytes to reserve for the filesystem.
1134f4c1f0b9SAdrian Chadd# This is now optional.
1135f4c1f0b9SAdrian Chadd# If not defined, the root filesystem passed in as the MFS_IMAGE makeoption
1136f4c1f0b9SAdrian Chadd# will be automatically embedded in the kernel during linking. Its exact size
1137f4c1f0b9SAdrian Chadd# will be consumed within the kernel.
1138f4c1f0b9SAdrian Chadd# If defined, the old way of embedding the filesystem in the kernel will be
1139f4c1f0b9SAdrian Chadd# used. That is to say MD_ROOT_SIZE KB will be allocated in the kernel and
1140f4c1f0b9SAdrian Chadd# later, the filesystem image passed in as the MFS_IMAGE makeoption will be
1141f4c1f0b9SAdrian Chadd# dd'd into the reserved space if it fits.
114271e4fff8SPoul-Henning Kampoptions 	MD_ROOT_SIZE=10
114371e4fff8SPoul-Henning Kamp
114471e4fff8SPoul-Henning Kamp# Make the md device a potential root device, either with preloaded
114571e4fff8SPoul-Henning Kamp# images of type mfs_root or md_root.
114671e4fff8SPoul-Henning Kampoptions 	MD_ROOT
1147d52d7365SPoul-Henning Kamp
11485cf10fb9SIan Lepore# Write-protect the md root device so that it may not be mounted writeable.
11495cf10fb9SIan Leporeoptions 	MD_ROOT_READONLY
11505cf10fb9SIan Lepore
11517b2c7b92SBreno Leitao# Allow to read MD image from external memory regions
11527b2c7b92SBreno Leitaooptions		MD_ROOT_MEM
11537b2c7b92SBreno Leitao
1154495967e4SEivind Eklund# Disk quotas are supported when this option is enabled.
11552365e64fSRodney W. Grimesoptions 	QUOTA			#enable disk quotas
11566a8d6623SGarrett Wollman
1157276756a4SDag-Erling Smørgrav# If you are running a machine just as a fileserver for PC and MAC
115845c203fcSGleb Smirnoff# users, using SAMBA, you may consider setting this option
1159276756a4SDag-Erling Smørgrav# and keeping all those users' directories on a filesystem that is
1160276756a4SDag-Erling Smørgrav# mounted with the suiddir option. This gives new files the same
1161ec4e5afbSRobert Nordier# ownership as the directory (similar to group). It's a security hole
11626110161fSDag-Erling Smørgrav# if you let these users run programs, so confine it to file-servers
1163276756a4SDag-Erling Smørgrav# (but it'll save you lots of headaches in those cases). Root owned
1164276756a4SDag-Erling Smørgrav# directories are exempt and X bits are cleared. The suid bit must be
11659c0ef6d5SOliver Fromme# set on the directory as well; see chmod(1). PC owners can't see/set
1166276756a4SDag-Erling Smørgrav# ownerships so they keep getting their toes trodden on. This saves
1167276756a4SDag-Erling Smørgrav# you all the support calls as the filesystem it's used on will act as
1168276756a4SDag-Erling Smørgrav# they expect: "It's my dir so it must be my file".
1169cb800e34SJulian Elischer#
1170cb800e34SJulian Elischeroptions 	SUIDDIR
1171cb800e34SJulian Elischer
1172df394affSJohn-Mark Gurney# NFS options:
11735895e3c8SPeter Wemmoptions 	NFS_MINATTRTIMO=3	# VREG attrib cache timeout in sec
11745895e3c8SPeter Wemmoptions 	NFS_MAXATTRTIMO=60
11755895e3c8SPeter Wemmoptions 	NFS_MINDIRATTRTIMO=30	# VDIR attrib cache timeout in sec
11765895e3c8SPeter Wemmoptions 	NFS_MAXDIRATTRTIMO=60
1177df394affSJohn-Mark Gurneyoptions 	NFS_DEBUG		# Enable NFS Debugging
1178df394affSJohn-Mark Gurney
1179053a2b61SEivind Eklund#
1180053a2b61SEivind Eklund# Add support for the EXT2FS filesystem of Linux fame.  Be a bit
1181053a2b61SEivind Eklund# careful with this - the ext2fs code has a tendency to lag behind
1182053a2b61SEivind Eklund# changes and not be exercised very much, so mounting read/write could
1183053a2b61SEivind Eklund# be dangerous (and even mounting read only could result in panics.)
1184053a2b61SEivind Eklund#
11855895e3c8SPeter Wemmoptions 	EXT2FS
1186053a2b61SEivind Eklund
11878ab2f5ecSMark Murray# The system memory devices; /dev/mem, /dev/kmem
1188e83e229dSWarner Loshdevice		mem
11898ab2f5ecSMark Murray
119000a5db46SStacey Son# The kernel symbol table device; /dev/ksyms
119100a5db46SStacey Sondevice		ksyms
119200a5db46SStacey Son
1193c4f02a89SMax Khon# Optional character code conversion support with LIBICONV.
1194c4f02a89SMax Khon# Each option requires their base file system and LIBICONV.
1195c4f02a89SMax Khonoptions 	CD9660_ICONV
1196c4f02a89SMax Khonoptions 	MSDOSFS_ICONV
1197126f0dfaSScott Longoptions 	UDF_ICONV
1198c4f02a89SMax Khon
11996a8d6623SGarrett Wollman
12006a8d6623SGarrett Wollman#####################################################################
1201abc97a06SBruce Evans# POSIX P1003.1B
1202abc97a06SBruce Evans
12031c9c6382SRuslan Ermilov# Real time extensions added in the 1993 POSIX
1204abc97a06SBruce Evans# _KPOSIX_PRIORITY_SCHEDULING: Build in _POSIX_PRIORITY_SCHEDULING
1205abc97a06SBruce Evans
12065895e3c8SPeter Wemmoptions 	_KPOSIX_PRIORITY_SCHEDULING
12078cbf4973SAlfred Perlstein# p1003_1b_semaphores are very experimental,
12088cbf4973SAlfred Perlstein# user should be ready to assist in debugging if problems arise.
12093ffb9fadSAlfred Perlsteinoptions 	P1003_1B_SEMAPHORES
1210abc97a06SBruce Evans
12115b40ce27SDavid Xu# POSIX message queue
12125b40ce27SDavid Xuoptions 	P1003_1B_MQUEUE
1213abc97a06SBruce Evans
1214abc97a06SBruce Evans#####################################################################
121512e9f256SRobert Watson# SECURITY POLICY PARAMETERS
121612e9f256SRobert Watson
1217fdcba197SRobert Watson# Support for BSM audit
1218fdcba197SRobert Watsonoptions 	AUDIT
1219fdcba197SRobert Watson
1220cd6d1d76SBruce Evans# Support for Mandatory Access Control (MAC):
1221cd6d1d76SBruce Evansoptions 	MAC
1222eae2f20cSRobert Watsonoptions 	MAC_BIBA
1223eae2f20cSRobert Watsonoptions 	MAC_BSDEXTENDED
1224eae2f20cSRobert Watsonoptions 	MAC_IFOFF
1225c4725737SRobert Watsonoptions 	MAC_LOMAC
1226eae2f20cSRobert Watsonoptions 	MAC_MLS
1227eae2f20cSRobert Watsonoptions 	MAC_NONE
12283496c981SIan Leporeoptions 	MAC_NTPD
1229eae2f20cSRobert Watsonoptions 	MAC_PARTITION
123003d03162SRobert Watsonoptions 	MAC_PORTACL
1231eae2f20cSRobert Watsonoptions 	MAC_SEEOTHERUIDS
1232782f7255SRobert Watsonoptions 	MAC_STUB
1233eae2f20cSRobert Watsonoptions 	MAC_TEST
123412e9f256SRobert Watson
123596fcc75fSRobert Watson# Support for Capsicum
123655d4d6f4SJonathan Andersonoptions 	CAPABILITIES	# fine-grained rights on file descriptors
123755d4d6f4SJonathan Andersonoptions 	CAPABILITY_MODE	# sandboxes with no global namespace access
123896fcc75fSRobert Watson
123912e9f256SRobert Watson
124012e9f256SRobert Watson#####################################################################
1241000033d0SJeroen Ruigrok van der Werven# CLOCK OPTIONS
1242000033d0SJeroen Ruigrok van der Werven
1243000033d0SJeroen Ruigrok van der Werven# The granularity of operation is controlled by the kernel option HZ whose
1244358f8d82SRobert Watson# default value (1000 on most architectures) means a granularity of 1ms
1245358f8d82SRobert Watson# (1s/HZ).  Historically, the default was 100, but finer granularity is
1246358f8d82SRobert Watson# required for DUMMYNET and other systems on modern hardware.  There are
1247358f8d82SRobert Watson# reasonable arguments that HZ should, in fact, be 100 still; consider,
1248358f8d82SRobert Watson# that reducing the granularity too much might cause excessive overhead in
1249358f8d82SRobert Watson# clock interrupt processing, potentially causing ticks to be missed and thus
1250358f8d82SRobert Watson# actually reducing the accuracy of operation.
1251000033d0SJeroen Ruigrok van der Werven
1252000033d0SJeroen Ruigrok van der Wervenoptions 	HZ=100
1253000033d0SJeroen Ruigrok van der Werven
1254f309f881SJohn Baldwin# Enable support for the kernel PLL to use an external PPS signal,
1255f309f881SJohn Baldwin# under supervision of [x]ntpd(8)
1256f309f881SJohn Baldwin# More info in ntpd documentation: http://www.eecis.udel.edu/~ntp
1257f309f881SJohn Baldwin
1258f309f881SJohn Baldwinoptions 	PPS_SYNC
1259f309f881SJohn Baldwin
1260b0fdc837SLawrence Stewart# Enable support for generic feed-forward clocks in the kernel.
1261b0fdc837SLawrence Stewart# The feed-forward clock support is an alternative to the feedback oriented
1262b0fdc837SLawrence Stewart# ntpd/system clock approach, and is to be used with a feed-forward
1263b0fdc837SLawrence Stewart# synchronization algorithm such as the RADclock:
1264b0fdc837SLawrence Stewart# More info here: http://www.synclab.org/radclock
1265b0fdc837SLawrence Stewart
1266b0fdc837SLawrence Stewartoptions 	FFCLOCK
1267b0fdc837SLawrence Stewart
1268000033d0SJeroen Ruigrok van der Werven
1269000033d0SJeroen Ruigrok van der Werven#####################################################################
1270de6a307eSPeter Dufault# SCSI DEVICES
1271de6a307eSPeter Dufault
12726a8d6623SGarrett Wollman# SCSI DEVICE CONFIGURATION
12736a8d6623SGarrett Wollman
12746a8d6623SGarrett Wollman# The SCSI subsystem consists of the `base' SCSI code, a number of
1275ebc1a0e2SPeter Dufault# high-level SCSI device `type' drivers, and the low-level host-adapter
12766a8d6623SGarrett Wollman# device drivers.  The host adapters are listed in the ISA and PCI
12776a8d6623SGarrett Wollman# device configuration sections below.
12786a8d6623SGarrett Wollman#
1279e14eb5a1SGarrett Wollman# It is possible to wire down your SCSI devices so that a given bus,
1280e14eb5a1SGarrett Wollman# target, and LUN always come on line as the same device unit.  In
1281e14eb5a1SGarrett Wollman# earlier versions the unit numbers were assigned in the order that
1282e14eb5a1SGarrett Wollman# the devices were probed on the SCSI bus.  This means that if you
1283e14eb5a1SGarrett Wollman# removed a disk drive, you may have had to rewrite your /etc/fstab
1284e14eb5a1SGarrett Wollman# file, and also that you had to be careful when adding a new disk
1285e14eb5a1SGarrett Wollman# as it may have been probed earlier and moved your device configuration
1286ac8e5d02SConrad Meyer# around.
1287ebc1a0e2SPeter Dufault
1288ebc1a0e2SPeter Dufault# This old behavior is maintained as the default behavior.  The unit
1289ebc1a0e2SPeter Dufault# assignment begins with the first non-wired down unit for a device
1290700daf5eSJustin T. Gibbs# type.  For example, if you wire a disk as "da3" then the first
1291700daf5eSJustin T. Gibbs# non-wired disk will be assigned da4.
1292ebc1a0e2SPeter Dufault
1293ebc1a0e2SPeter Dufault# The syntax for wiring down devices is:
1294ebc1a0e2SPeter Dufault
1295*f9ba2bbeSWarner Loshenvvar		hint.scbus.0.at="ahc0"
1296*f9ba2bbeSWarner Loshenvvar		hint.scbus.1.at="ahc1"
1297*f9ba2bbeSWarner Loshenvvar		hint.scbus.1.bus="0"
1298*f9ba2bbeSWarner Loshenvvar		hint.scbus.3.at="ahc2"
1299*f9ba2bbeSWarner Loshenvvar		hint.scbus.3.bus="0"
1300*f9ba2bbeSWarner Loshenvvar		hint.scbus.2.at="ahc2"
1301*f9ba2bbeSWarner Loshenvvar		hint.scbus.2.bus="1"
1302*f9ba2bbeSWarner Loshenvvar		hint.da.0.at="scbus0"
1303*f9ba2bbeSWarner Loshenvvar		hint.da.0.target="0"
1304*f9ba2bbeSWarner Loshenvvar		hint.da.0.unit="0"
1305*f9ba2bbeSWarner Loshenvvar		hint.da.1.at="scbus3"
1306*f9ba2bbeSWarner Loshenvvar		hint.da.1.target="1"
1307*f9ba2bbeSWarner Loshenvvar		hint.da.2.at="scbus2"
1308*f9ba2bbeSWarner Loshenvvar		hint.da.2.target="3"
1309*f9ba2bbeSWarner Loshenvvar		hint.sa.1.at="scbus1"
1310*f9ba2bbeSWarner Loshenvvar		hint.sa.1.target="6"
1311ebc1a0e2SPeter Dufault
1312ebc1a0e2SPeter Dufault# "units" (SCSI logical unit number) that are not specified are
1313ebc1a0e2SPeter Dufault# treated as if specified as LUN 0.
1314ebc1a0e2SPeter Dufault
1315ebc1a0e2SPeter Dufault# All SCSI devices allocate as many units as are required.
1316ebc1a0e2SPeter Dufault
1317cf2458c9SMatt Jacob# The ch driver drives SCSI Media Changer ("jukebox") devices.
1318cf2458c9SMatt Jacob#
1319cf2458c9SMatt Jacob# The da driver drives SCSI Direct Access ("disk") and Optical Media
1320cf2458c9SMatt Jacob# ("WORM") devices.
1321cf2458c9SMatt Jacob#
1322cf2458c9SMatt Jacob# The sa driver drives SCSI Sequential Access ("tape") devices.
1323cf2458c9SMatt Jacob#
1324cf2458c9SMatt Jacob# The cd driver drives SCSI Read Only Direct Access ("cd") devices.
1325cf2458c9SMatt Jacob#
13263c7c6c12SMike Pritchard# The ses driver drives SCSI Environment Services ("ses") and
13273c7c6c12SMike Pritchard# SAF-TE ("SCSI Accessible Fault-Tolerant Enclosure") devices.
1328cf2458c9SMatt Jacob#
1329cf2458c9SMatt Jacob# The pt driver drives SCSI Processor devices.
1330cf2458c9SMatt Jacob#
13311eba4c79SScott Long# The sg driver provides a passthrough API that is compatible with the
13321eba4c79SScott Long# Linux SG driver.  It will work in conjunction with the COMPAT_LINUX
13331eba4c79SScott Long# option to run linux SG apps.  It can also stand on its own and provide
1334d51e8487SJosh Paetzel# source level API compatibility for porting apps to FreeBSD.
1335cf2458c9SMatt Jacob#
1336cf2458c9SMatt Jacob# Target Mode support is provided here but also requires that a SIM
1337cf2458c9SMatt Jacob# (SCSI Host Adapter Driver) provide support as well.
1338cf2458c9SMatt Jacob#
1339cf2458c9SMatt Jacob# The targ driver provides target mode support as a Processor type device.
1340cf2458c9SMatt Jacob# It exists to give the minimal context necessary to respond to Inquiry
1341cf2458c9SMatt Jacob# commands. There is a sample user application that shows how the rest
1342cf2458c9SMatt Jacob# of the command support might be done in /usr/share/examples/scsi_target.
1343cf2458c9SMatt Jacob#
1344cf2458c9SMatt Jacob# The targbh driver provides target mode support and exists to respond
1345cf2458c9SMatt Jacob# to incoming commands that do not otherwise have a logical unit assigned
1346cf2458c9SMatt Jacob# to them.
1347cf2458c9SMatt Jacob#
1348b2420d4dSSergey Kandaurov# The pass driver provides a passthrough API to access the CAM subsystem.
1349ebc1a0e2SPeter Dufault
1350c9953c3bSPeter Wemmdevice		scbus		#base SCSI code
1351c9953c3bSPeter Wemmdevice		ch		#SCSI media changers
1352c9953c3bSPeter Wemmdevice		da		#SCSI direct access devices (aka disks)
1353c9953c3bSPeter Wemmdevice		sa		#SCSI tapes
1354c9953c3bSPeter Wemmdevice		cd		#SCSI CD-ROMs
1355dc0aa406SAlexander Motindevice		ses		#Enclosure Services (SES and SAF-TE)
1356cf2458c9SMatt Jacobdevice		pt		#SCSI processor
135764ed91d5SMatt Jacobdevice		targ		#SCSI Target Mode Code
135864ed91d5SMatt Jacobdevice		targbh		#SCSI Target Mode Blackhole Device
1359cf2458c9SMatt Jacobdevice		pass		#CAM passthrough driver
13601eba4c79SScott Longdevice		sg		#Linux SCSI passthrough
1361130f4520SKenneth D. Merrydevice		ctl		#CAM Target Layer
13628909a72bSPeter Dufault
1363700daf5eSJustin T. Gibbs# CAM OPTIONS:
1364700daf5eSJustin T. Gibbs# debugging options:
1365f0f25b9cSAlexander Motin# CAMDEBUG		Compile in all possible debugging.
1366f0f25b9cSAlexander Motin# CAM_DEBUG_COMPILE	Debug levels to compile in.
1367f0f25b9cSAlexander Motin# CAM_DEBUG_FLAGS	Debug levels to enable on boot.
1368f0f25b9cSAlexander Motin# CAM_DEBUG_BUS		Limit debugging to the given bus.
1369f0f25b9cSAlexander Motin# CAM_DEBUG_TARGET	Limit debugging to the given target.
1370f0f25b9cSAlexander Motin# CAM_DEBUG_LUN		Limit debugging to the given lun.
1371f0f25b9cSAlexander Motin# CAM_DEBUG_DELAY	Delay in us after printing each debug line.
1372a3851eecSAlan Somers# CAM_IO_STATS		Publish additional CAM device statics by sysctl
1373700daf5eSJustin T. Gibbs#
1374700daf5eSJustin T. Gibbs# CAM_MAX_HIGHPOWER: Maximum number of concurrent high power (start unit) cmds
1375700daf5eSJustin T. Gibbs# SCSI_NO_SENSE_STRINGS: When defined disables sense descriptions
1376700daf5eSJustin T. Gibbs# SCSI_NO_OP_STRINGS: When defined disables opcode descriptions
137756234437SKenneth D. Merry# SCSI_DELAY: The number of MILLISECONDS to freeze the SIM (scsi adapter)
137856234437SKenneth D. Merry#             queue after a bus reset, and the number of milliseconds to
13793a937198SBrooks Davis#             freeze the device queue after a bus device reset.  This
13803a937198SBrooks Davis#             can be changed at boot and runtime with the
13813a937198SBrooks Davis#             kern.cam.scsi_delay tunable/sysctl.
1382700daf5eSJustin T. Gibbsoptions 	CAMDEBUG
1383f0f25b9cSAlexander Motinoptions 	CAM_DEBUG_COMPILE=-1
1384f0f25b9cSAlexander Motinoptions 	CAM_DEBUG_FLAGS=(CAM_DEBUG_INFO|CAM_DEBUG_PROBE|CAM_DEBUG_PERIPH)
13855895e3c8SPeter Wemmoptions 	CAM_DEBUG_BUS=-1
13865895e3c8SPeter Wemmoptions 	CAM_DEBUG_TARGET=-1
13875895e3c8SPeter Wemmoptions 	CAM_DEBUG_LUN=-1
1388f0f25b9cSAlexander Motinoptions 	CAM_DEBUG_DELAY=1
13895895e3c8SPeter Wemmoptions 	CAM_MAX_HIGHPOWER=4
1390700daf5eSJustin T. Gibbsoptions 	SCSI_NO_SENSE_STRINGS
1391700daf5eSJustin T. Gibbsoptions 	SCSI_NO_OP_STRINGS
139232672ba8SAndre Oppermannoptions 	SCSI_DELAY=5000	# Be pessimistic about Joe SCSI device
1393a25d93e5SBjoern A. Zeeboptions 	CAM_IOSCHED_DYNAMIC
1394a3851eecSAlan Somersoptions		CAM_IO_STATS
1395d38677d2SWarner Loshoptions		CAM_TEST_FAILURE
13961a7c583cSGarrett Wollman
1397700daf5eSJustin T. Gibbs# Options for the CAM CDROM driver:
1398700daf5eSJustin T. Gibbs# CHANGER_MIN_BUSY_SECONDS: Guaranteed minimum time quantum for a changer LUN
1399700daf5eSJustin T. Gibbs# CHANGER_MAX_BUSY_SECONDS: Maximum time quantum per changer LUN, only
1400700daf5eSJustin T. Gibbs#                           enforced if there is I/O waiting for another LUN
1401700daf5eSJustin T. Gibbs# The compiled in defaults for these variables are 2 and 10 seconds,
1402700daf5eSJustin T. Gibbs# respectively.
140393063432SJoerg Wunsch#
1404700daf5eSJustin T. Gibbs# These can also be changed on the fly with the following sysctl variables:
1405700daf5eSJustin T. Gibbs# kern.cam.cd.changer.min_busy_seconds
1406700daf5eSJustin T. Gibbs# kern.cam.cd.changer.max_busy_seconds
140793063432SJoerg Wunsch#
14085895e3c8SPeter Wemmoptions 	CHANGER_MIN_BUSY_SECONDS=2
14095895e3c8SPeter Wemmoptions 	CHANGER_MAX_BUSY_SECONDS=10
141093063432SJoerg Wunsch
14119dfb4471SKenneth D. Merry# Options for the CAM sequential access driver:
1412b29f9e40SMatt Jacob# SA_IO_TIMEOUT: Timeout for read/write/wfm  operations, in minutes
14139dfb4471SKenneth D. Merry# SA_SPACE_TIMEOUT: Timeout for space operations, in minutes
14149dfb4471SKenneth D. Merry# SA_REWIND_TIMEOUT: Timeout for rewind operations, in minutes
14159dfb4471SKenneth D. Merry# SA_ERASE_TIMEOUT: Timeout for erase operations, in minutes
14169f050ed5SMatt Jacob# SA_1FM_AT_EOD: Default to model which only has a default one filemark at EOT.
141725388b6cSBruce Evansoptions 	SA_IO_TIMEOUT=4
141825388b6cSBruce Evansoptions 	SA_SPACE_TIMEOUT=60
141925388b6cSBruce Evansoptions 	SA_REWIND_TIMEOUT=(2*60)
142025388b6cSBruce Evansoptions 	SA_ERASE_TIMEOUT=(4*60)
14219f050ed5SMatt Jacoboptions 	SA_1FM_AT_EOD
14229dfb4471SKenneth D. Merry
14233ece1bd2SKenneth D. Merry# Optional timeout for the CAM processor target (pt) device
14243ece1bd2SKenneth D. Merry# This is specified in seconds.  The default is 60 seconds.
142525388b6cSBruce Evansoptions 	SCSI_PT_DEFAULT_TIMEOUT=60
14263ece1bd2SKenneth D. Merry
14278904e70bSMatt Jacob# Optional enable of doing SES passthrough on other devices (e.g., disks)
14288904e70bSMatt Jacob#
14298904e70bSMatt Jacob# Normally disabled because a lot of newer SCSI disks report themselves
14308904e70bSMatt Jacob# as having SES capabilities, but this can then clot up attempts to build
14319c0ef6d5SOliver Fromme# a topology with the SES device that's on the box these drives are in....
14328904e70bSMatt Jacoboptions 	SES_ENABLE_PASSTHROUGH
14338904e70bSMatt Jacob
14346a8d6623SGarrett Wollman
14356a8d6623SGarrett Wollman#####################################################################
14366a8d6623SGarrett Wollman# MISCELLANEOUS DEVICES AND OPTIONS
14376a8d6623SGarrett Wollman
1438bc093719SEd Schoutendevice		pty		#BSD-style compatibility pseudo ttys
14396d823e81SJulian Elischerdevice		nmdm		#back-to-back tty devices
1440f71c01ccSPeter Wemmdevice		md		#Memory/malloc disk
1441932ef5b5SEd Schoutendevice		snp		#Snoop device - to look at pty/vty/etc..
1442efacde1bSBrooks Davisdevice		ccd		#Concatenated disk driver
14436aec1278SMax Laierdevice		firmware	#firmware(9) support
1444be174c7eSGreg Lehey
14456f2d8adbSBoris Popov# Kernel side iconv library
14466f2d8adbSBoris Popovoptions 	LIBICONV
14476f2d8adbSBoris Popov
144858067a99SPoul-Henning Kamp# Size of the kernel message buffer.  Should be N * pagesize.
14495895e3c8SPeter Wemmoptions 	MSGBUF_SIZE=40960
145058067a99SPoul-Henning Kamp
14516a8d6623SGarrett Wollman
14526a8d6623SGarrett Wollman#####################################################################
1453e131ba36SJohn Baldwin# HARDWARE BUS CONFIGURATION
1454e131ba36SJohn Baldwin
1455e131ba36SJohn Baldwin#
1456e131ba36SJohn Baldwin# PCI bus & PCI options:
1457e131ba36SJohn Baldwin#
1458e131ba36SJohn Baldwindevice		pci
145982cb5c3bSJohn Baldwinoptions 	PCI_HP			# PCI-Express native HotPlug
1460c41df401SJohn Baldwinoptions 	PCI_IOV			# PCI SR-IOV support
1461e131ba36SJohn Baldwin
1462e131ba36SJohn Baldwin
1463e131ba36SJohn Baldwin#####################################################################
1464d61e6649SAlexander Langer# HARDWARE DEVICE CONFIGURATION
1465d61e6649SAlexander Langer
1466d61e6649SAlexander Langer# For ISA the required hints are listed.
146786d99b68SWarner Losh# PCI, CardBus, SD/MMC and pccard are self identifying buses, so
14685bcb64f2SWarner Losh# no hints are needed.
1469d61e6649SAlexander Langer
1470d61e6649SAlexander Langer#
1471d61e6649SAlexander Langer# Mandatory devices:
1472d61e6649SAlexander Langer#
1473d61e6649SAlexander Langer
14746e818956SDavid E. O'Brien# These options are valid for other keyboard drivers as well.
14756e818956SDavid E. O'Brienoptions 	KBD_DISABLE_KEYMAP_LOAD	# refuse to load a keymap
14766e818956SDavid E. O'Brienoptions 	KBD_INSTALL_CDEV	# install a CDEV entry in /dev
14776e818956SDavid E. O'Brien
147846360281SEd Mastedevice		kbdmux			# keyboard multiplexer
147946360281SEd Masteoptions		KBDMUX_DFLT_KEYMAP	# specify the built-in keymap
148046360281SEd Mastemakeoptions	KBDMUX_DFLT_KEYMAP=it.iso
148146360281SEd Maste
14827f5092f3SJohn Baldwinoptions 	FB_DEBUG		# Frame buffer debugging
14837f5092f3SJohn Baldwin
148483409a55SEd Schouten# Enable experimental features of the syscons terminal emulator (teken).
1485e42fc368SEd Schoutenoptions 	TEKEN_CONS25		# cons25-style terminal emulation
148683409a55SEd Schoutenoptions 	TEKEN_UTF8		# UTF-8 output handling
148783409a55SEd Schouten
1488ccbb7b5eSEd Maste# The vt video console driver.
1489ccbb7b5eSEd Mastedevice		vt
1490ccbb7b5eSEd Masteoptions		VT_ALT_TO_ESC_HACK=1	# Prepend ESC sequence to ALT keys
1491ccbb7b5eSEd Masteoptions		VT_MAXWINDOWS=16	# Number of virtual consoles
1492ccbb7b5eSEd Masteoptions		VT_TWOBUTTON_MOUSE	# Use right mouse button to paste
1493ccbb7b5eSEd Maste
1494e9ee2675SMark Johnston# The following options set the maximum framebuffer size.
1495e9ee2675SMark Johnstonoptions		VT_FB_MAX_HEIGHT=480
1496e9ee2675SMark Johnstonoptions		VT_FB_MAX_WIDTH=640
1497ccbb7b5eSEd Maste
1498ccbb7b5eSEd Maste# The following options will let you change the default vt terminal colors.
1499ccbb7b5eSEd Masteoptions		TERMINAL_NORM_ATTR=(FG_GREEN|BG_BLACK)
1500ccbb7b5eSEd Masteoptions		TERMINAL_KERN_ATTR=(FG_LIGHTRED|BG_BLACK)
1501ccbb7b5eSEd Maste
15021fe04850SBruce Evans#
1503d61e6649SAlexander Langer# Optional devices:
15046a8d6623SGarrett Wollman#
15056a8d6623SGarrett Wollman
15066a8d6623SGarrett Wollman#
1507d61e6649SAlexander Langer# SCSI host adapters:
15086a8d6623SGarrett Wollman#
1509d8c51c6fSLeandro Lupori# aacraid: Adaptec by PMC RAID controllers, Series 6/7/8 and upcoming
1510d8c51c6fSLeandro Lupori#          families. Container interface, CAM required.
1511d61e6649SAlexander Langer# ahc: Adaptec 274x/284x/2910/293x/294x/394x/3950x/3960x/398X/4944/
1512d61e6649SAlexander Langer#      19160x/29160x, aic7770/aic78xx
1513cdd49e97SJustin T. Gibbs# ahd: Adaptec 29320/39320 Controllers.
1514a9ab459bSMarius Strobl# esp: Emulex ESP, NCR 53C9x and QLogic FAS families based controllers
1515a9ab459bSMarius Strobl#      including the AMD Am53C974 (found on devices such as the Tekram
1516a9ab459bSMarius Strobl#      DC-390(T)) and the Sun ESP and FAS families of controllers
1517d61e6649SAlexander Langer# isp: Qlogic ISP 1020, 1040 and 1040B PCI SCSI host adapters,
1518d61e6649SAlexander Langer#      ISP 1240 Dual Ultra SCSI, ISP 1080 and 1280 (Dual) Ultra2,
1519d61e6649SAlexander Langer#      ISP 12160 Ultra3 SCSI,
1520e8a0f829SMatt Jacob#      Qlogic ISP 2100 and ISP 2200 1Gb Fibre Channel host adapters.
1521e8a0f829SMatt Jacob#      Qlogic ISP 2300 and ISP 2312 2Gb Fibre Channel host adapters.
1522af606348SMatt Jacob#      Qlogic ISP 2322 and ISP 6322 2Gb Fibre Channel host adapters.
1523ac918c84SMatt Jacob# ispfw: Firmware module for Qlogic host adapters
1524f7ab0158SWarner Losh# mpr: LSI-Logic MPT/Fusion Gen 3
1525f7ab0158SWarner Losh# mps: LSI-Logic MPT/Fusion Gen 2
152664fa5108SMatt Jacob# mpt: LSI-Logic MPT/Fusion 53c1020 or 53c1030 Ultra4
152764fa5108SMatt Jacob#      or FC9x9 Fibre Channel host adapters.
1528fb91fd69SGerard Roudier# sym: Symbios/Logic 53C8XX family of PCI-SCSI I/O processors:
1529fb91fd69SGerard Roudier#      53C810, 53C810A, 53C815, 53C825,  53C825A, 53C860, 53C875,
1530fb91fd69SGerard Roudier#      53C876, 53C885,  53C895, 53C895A, 53C896,  53C897, 53C1510D,
1531fb91fd69SGerard Roudier#      53C1010-33, 53C1010-66.
1532d61e6649SAlexander Langer
1533d8c51c6fSLeandro Luporidevice		aacraid
1534d61e6649SAlexander Langerdevice		ahc
1535cdd49e97SJustin T. Gibbsdevice		ahd
15361b946e21SScott Longdevice		esp
1537c5933b20SScott Longdevice		iscsi_initiator
1538d61e6649SAlexander Langerdevice		isp
1539*f9ba2bbeSWarner Loshenvvar		hint.isp.0.disable="1"
1540*f9ba2bbeSWarner Loshenvvar		hint.isp.0.role="3"
1541*f9ba2bbeSWarner Loshenvvar		hint.isp.0.prefer_iomap="1"
1542*f9ba2bbeSWarner Loshenvvar		hint.isp.0.prefer_memmap="1"
1543*f9ba2bbeSWarner Loshenvvar		hint.isp.0.fwload_disable="1"
1544*f9ba2bbeSWarner Loshenvvar		hint.isp.0.ignore_nvram="1"
1545*f9ba2bbeSWarner Loshenvvar		hint.isp.0.fullduplex="1"
1546*f9ba2bbeSWarner Loshenvvar		hint.isp.0.topology="lport"
1547*f9ba2bbeSWarner Loshenvvar		hint.isp.0.topology="nport"
1548*f9ba2bbeSWarner Loshenvvar		hint.isp.0.topology="lport-only"
1549*f9ba2bbeSWarner Loshenvvar		hint.isp.0.topology="nport-only"
15500787f2b8SMatt Jacob# we can't get u_int64_t types, nor can we get strings if it's got
15510787f2b8SMatt Jacob# a leading 0x, hence this silly dodge.
1552*f9ba2bbeSWarner Loshenvvar		hint.isp.0.portwnn="w50000000aaaa0000"
1553*f9ba2bbeSWarner Loshenvvar		hint.isp.0.nodewnn="w50000000aaaa0001"
1554d61e6649SAlexander Langerdevice		ispfw
1555f7ab0158SWarner Loshdevice		mpr			# LSI-Logic MPT-Fusion 3
1556f7ab0158SWarner Loshdevice		mps			# LSI-Logic MPT-Fusion 2
1557f7ab0158SWarner Loshdevice		mpt			# LSI-Logic MPT-Fusion
1558d61e6649SAlexander Langerdevice		sym
1559d61e6649SAlexander Langer
1560d61e6649SAlexander Langer# The aic7xxx driver will attempt to use memory mapped I/O for all PCI
1561d61e6649SAlexander Langer# controllers that have it configured only if this option is set. Unfortunately,
1562d61e6649SAlexander Langer# this doesn't work on some motherboards, which prevents it from being the
1563d61e6649SAlexander Langer# default.
1564d61e6649SAlexander Langeroptions 	AHC_ALLOW_MEMIO
1565d61e6649SAlexander Langer
1566fac70739SJeroen Ruigrok van der Werven# Dump the contents of the ahc controller configuration PROM.
1567fac70739SJeroen Ruigrok van der Wervenoptions 	AHC_DUMP_EEPROM
1568fac70739SJeroen Ruigrok van der Werven
1569fac70739SJeroen Ruigrok van der Werven# Bitmap of units to enable targetmode operations.
1570fac70739SJeroen Ruigrok van der Wervenoptions 	AHC_TMODE_ENABLE
1571fac70739SJeroen Ruigrok van der Werven
1572662d3818SScott Long# Compile in Aic7xxx Debugging code.
1573662d3818SScott Longoptions 	AHC_DEBUG
1574662d3818SScott Long
1575662d3818SScott Long# Aic7xxx driver debugging options. See sys/dev/aic7xxx/aic7xxx.h
1576662d3818SScott Longoptions 	AHC_DEBUG_OPTS
1577662d3818SScott Long
1578f8f8803bSBruce Evans# Print register bitfields in debug output.  Adds ~128k to driver
1579f8f8803bSBruce Evans# See ahc(4).
1580662d3818SScott Longoptions 	AHC_REG_PRETTY_PRINT
1581662d3818SScott Long
1582cdd49e97SJustin T. Gibbs# Compile in aic79xx debugging code.
1583cdd49e97SJustin T. Gibbsoptions 	AHD_DEBUG
1584cdd49e97SJustin T. Gibbs
1585f8f8803bSBruce Evans# Aic79xx driver debugging options.  Adds ~215k to driver.  See ahd(4).
1586cdd49e97SJustin T. Gibbsoptions 	AHD_DEBUG_OPTS=0xFFFFFFFF
1587cdd49e97SJustin T. Gibbs
158843e9d8a3SScott Long# Print human-readable register definitions when debugging
158943e9d8a3SScott Longoptions 	AHD_REG_PRETTY_PRINT
159043e9d8a3SScott Long
1591662d3818SScott Long# Bitmap of units to enable targetmode operations.
1592662d3818SScott Longoptions 	AHD_TMODE_ENABLE
1593662d3818SScott Long
1594c5933b20SScott Long# Options used in dev/iscsi (Software iSCSI stack)
1595c5933b20SScott Long#
1596c5933b20SScott Longoptions 	ISCSI_INITIATOR_DEBUG=9
1597c5933b20SScott Long
1598d61e6649SAlexander Langer# Options used in dev/isp/ (Qlogic SCSI/FC driver).
1599d61e6649SAlexander Langer#
1600d61e6649SAlexander Langer#	ISP_TARGET_MODE		-	enable target mode operation
1601d61e6649SAlexander Langer#
160264fa5108SMatt Jacoboptions 	ISP_TARGET_MODE=1
1603af606348SMatt Jacob#
16049a1b0d43SMatt Jacob#	ISP_DEFAULT_ROLES	-	default role
16059a1b0d43SMatt Jacob#		none=0
16069a1b0d43SMatt Jacob#		target=1
16079a1b0d43SMatt Jacob#		initiator=2
16089a1b0d43SMatt Jacob#		both=3			(not supported currently)
1609af606348SMatt Jacob#
161015f0f952SMatt Jacob#	ISP_INTERNAL_TARGET		(trivial internal disk target, for testing)
161115f0f952SMatt Jacob#
1612e2873b76SMatt Jacoboptions 	ISP_DEFAULT_ROLES=0
1613d61e6649SAlexander Langer
1614d61e6649SAlexander Langer#options 	SYM_SETUP_SCSI_DIFF	#-HVD support for 825a, 875, 885
1615d61e6649SAlexander Langer					# disabled:0 (default), enabled:1
1616d61e6649SAlexander Langer#options 	SYM_SETUP_PCI_PARITY	#-PCI parity checking
1617d61e6649SAlexander Langer					# disabled:0, enabled:1 (default)
1618d61e6649SAlexander Langer#options 	SYM_SETUP_MAX_LUN	#-Number of LUNs supported
1619d61e6649SAlexander Langer					# default:8, range:[1..64]
16206a8d6623SGarrett Wollman
16216e818956SDavid E. O'Brien#
16226e818956SDavid E. O'Brien# Compaq "CISS" RAID controllers (SmartRAID 5* series)
16236e818956SDavid E. O'Brien# These controllers have a SCSI-like interface, and require the
16246e818956SDavid E. O'Brien# CAM infrastructure.
16256e818956SDavid E. O'Brien#
16266e818956SDavid E. O'Briendevice		ciss
16276e818956SDavid E. O'Brien
16286e818956SDavid E. O'Brien#
16296e818956SDavid E. O'Brien# Intel Integrated RAID controllers.
16306e818956SDavid E. O'Brien# This driver was developed and is maintained by Intel.  Contacts
16316e818956SDavid E. O'Brien# at Intel for this driver are
16326e818956SDavid E. O'Brien# "Kannanthanam, Boji T" <boji.t.kannanthanam@intel.com> and
16336e818956SDavid E. O'Brien# "Leubner, Achim" <achim.leubner@intel.com>.
16346e818956SDavid E. O'Brien#
16356e818956SDavid E. O'Briendevice		iir
16366e818956SDavid E. O'Brien
16376e818956SDavid E. O'Brien#
16386e818956SDavid E. O'Brien# Mylex AcceleRAID and eXtremeRAID controllers with v6 and later
16396e818956SDavid E. O'Brien# firmware.  These controllers have a SCSI-like interface, and require
16406e818956SDavid E. O'Brien# the CAM infrastructure.
16416e818956SDavid E. O'Brien#
16426e818956SDavid E. O'Briendevice		mly
16436e818956SDavid E. O'Brien
16446e818956SDavid E. O'Brien#
16456e818956SDavid E. O'Brien# Compaq Smart RAID, Mylex DAC960 and AMI MegaRAID controllers.  Only
16466e818956SDavid E. O'Brien# one entry is needed; the code will find and configure all supported
16476e818956SDavid E. O'Brien# controllers.
16486e818956SDavid E. O'Brien#
16496e818956SDavid E. O'Briendevice		ida		# Compaq Smart RAID
16506e818956SDavid E. O'Briendevice		mlx		# Mylex DAC960
16516e818956SDavid E. O'Briendevice		amr		# AMI MegaRAID
165264c71632SScott Longdevice		amrp		# SCSI Passthrough interface (optional, CAM req.)
16537f631a41SScott Longdevice		mfi		# LSI MegaRAID SAS
1654f366931cSScott Longdevice		mfip		# LSI MegaRAID SAS passthrough, requires CAM
16556b31d3f7SScott Longoptions 	MFI_DEBUG
1656a58b4afaSMark Johnstondevice		mrsas		# LSI/Avago MegaRAID SAS/SATA, 6Gb/s and 12Gb/s
16576e818956SDavid E. O'Brien
16586e818956SDavid E. O'Brien#
16596e818956SDavid E. O'Brien# 3ware ATA RAID
16606e818956SDavid E. O'Brien#
16616e818956SDavid E. O'Briendevice		twe		# 3ware ATA RAID
16626e818956SDavid E. O'Brien
166390d3341eSPeter Wemm#
1664e19ef875SAlexander Motin# Serial ATA host controllers:
1665e19ef875SAlexander Motin#
1666e19ef875SAlexander Motin# ahci: Advanced Host Controller Interface (AHCI) compatible
1667dd48af36SAlexander Motin# mvs:  Marvell 88SX50XX/88SX60XX/88SX70XX/SoC controllers
1668e19ef875SAlexander Motin# siis: SiliconImage SiI3124/SiI3132/SiI3531 controllers
16691a00526bSAlexander Motin#
16701a00526bSAlexander Motin# These drivers are part of cam(4) subsystem. They supersede less featured
16711a00526bSAlexander Motin# ata(4) subsystem drivers, supporting same hardware.
1672e19ef875SAlexander Motin
1673e19ef875SAlexander Motindevice		ahci
1674dd48af36SAlexander Motindevice		mvs
1675e19ef875SAlexander Motindevice		siis
1676e19ef875SAlexander Motin
1677e19ef875SAlexander Motin#
167845f6d665SAlexander Motin# The 'ATA' driver supports all legacy ATA/ATAPI controllers, including
167945f6d665SAlexander Motin# PC Card devices. You only need one "device ata" for it to find all
16806d04301dSAlexander Langer# PCI and PC Card ATA/ATAPI devices on modern machines.
1681c4bda3c6SAlexander Motin# Alternatively, individual bus and chipset drivers may be chosen by using
1682c4bda3c6SAlexander Motin# the 'atacore' driver then selecting the drivers on a per vendor basis.
1683c4bda3c6SAlexander Motin# For example to build a system which only supports a VIA chipset,
1684c4bda3c6SAlexander Motin# omit 'ata' and include the 'atacore', 'atapci' and 'atavia' drivers.
1685c9953c3bSPeter Wemmdevice		ata
1686c4bda3c6SAlexander Motin
1687c4bda3c6SAlexander Motin# Modular ATA
1688c4bda3c6SAlexander Motin#device		atacore		# Core ATA functionality
16895a62e92fSAlexander Motin#device		atapccard	# CARDBUS support
1690c4bda3c6SAlexander Motin#device		ataisa		# ISA bus support
1691c4bda3c6SAlexander Motin#device		atapci		# PCI bus support; only generic chipset support
1692c4bda3c6SAlexander Motin
1693c4bda3c6SAlexander Motin# PCI ATA chipsets
1694c4bda3c6SAlexander Motin#device		ataacard	# ACARD
1695c4bda3c6SAlexander Motin#device		ataacerlabs	# Acer Labs Inc. (ALI)
1696c4bda3c6SAlexander Motin#device		ataamd		# American Micro Devices (AMD)
1697c4bda3c6SAlexander Motin#device		ataati		# ATI
1698c4bda3c6SAlexander Motin#device		atacenatek	# Cenatek
1699c4bda3c6SAlexander Motin#device		atacypress	# Cypress
1700c4bda3c6SAlexander Motin#device		atacyrix	# Cyrix
1701c4bda3c6SAlexander Motin#device		atahighpoint	# HighPoint
1702c4bda3c6SAlexander Motin#device		ataintel	# Intel
1703c4bda3c6SAlexander Motin#device		ataite		# Integrated Technology Inc. (ITE)
1704c4bda3c6SAlexander Motin#device		atajmicron	# JMicron
1705c4bda3c6SAlexander Motin#device		atamarvell	# Marvell
1706c4bda3c6SAlexander Motin#device		atamicron	# Micron
1707c4bda3c6SAlexander Motin#device		atanational	# National
1708c4bda3c6SAlexander Motin#device		atanetcell	# NetCell
1709c4bda3c6SAlexander Motin#device		atanvidia	# nVidia
1710c4bda3c6SAlexander Motin#device		atapromise	# Promise
1711c4bda3c6SAlexander Motin#device		ataserverworks	# ServerWorks
1712c4bda3c6SAlexander Motin#device		atasiliconimage	# Silicon Image Inc. (SiI) (formerly CMD)
1713c4bda3c6SAlexander Motin#device		atasis		# Silicon Integrated Systems Corp.(SiS)
1714c4bda3c6SAlexander Motin#device		atavia		# VIA Technologies Inc.
1715c4bda3c6SAlexander Motin
17168b89ef0aSSøren Schmidt#
17176d04301dSAlexander Langer# For older non-PCI, non-PnPBIOS systems, these are the hints lines to add:
1718*f9ba2bbeSWarner Loshenvvar		hint.ata.0.at="isa"
1719*f9ba2bbeSWarner Loshenvvar		hint.ata.0.port="0x1f0"
1720*f9ba2bbeSWarner Loshenvvar		hint.ata.0.irq="14"
1721*f9ba2bbeSWarner Loshenvvar		hint.ata.1.at="isa"
1722*f9ba2bbeSWarner Loshenvvar		hint.ata.1.port="0x170"
1723*f9ba2bbeSWarner Loshenvvar		hint.ata.1.irq="15"
17246d04301dSAlexander Langer
17256d04301dSAlexander Langer#
1726501ef98fSMarcel Moolenaar# uart: newbusified driver for serial interfaces.  It consolidates the sio(4),
1727501ef98fSMarcel Moolenaar#	sab(4) and zs(4) drivers.
1728c8956b36SMarcel Moolenaar#
1729501ef98fSMarcel Moolenaardevice		uart
1730501ef98fSMarcel Moolenaar
17318194412bSMarcel Moolenaar# Options for uart(4)
17328194412bSMarcel Moolenaaroptions 	UART_PPS_ON_CTS		# Do time pulse capturing using CTS
17338194412bSMarcel Moolenaar					# instead of DCD.
17341662b008SIan Leporeoptions 	UART_POLL_FREQ		# Set polling rate, used when hw has
17351662b008SIan Lepore					# no interrupt support (50 Hz default).
17368194412bSMarcel Moolenaar
1737501ef98fSMarcel Moolenaar# The following hint should only be used for pure ISA devices.  It is not
1738501ef98fSMarcel Moolenaar# needed otherwise.  Use of hints is strongly discouraged.
1739*f9ba2bbeSWarner Loshenvvar		hint.uart.0.at="isa"
1740501ef98fSMarcel Moolenaar
1741c8956b36SMarcel Moolenaar# The following 3 hints are used when the UART is a system device (i.e., a
1742c8956b36SMarcel Moolenaar# console or debug port), but only on platforms that don't have any other
1743c8956b36SMarcel Moolenaar# means to pass the information to the kernel.  The unit number of the hint
1744c8956b36SMarcel Moolenaar# is only used to bundle the hints together.  There is no relation to the
1745c8956b36SMarcel Moolenaar# unit number of the probed UART.
1746*f9ba2bbeSWarner Loshenvvar		hint.uart.0.port="0x3f8"
1747*f9ba2bbeSWarner Loshenvvar		hint.uart.0.flags="0x10"
1748*f9ba2bbeSWarner Loshenvvar		hint.uart.0.baud="115200"
1749501ef98fSMarcel Moolenaar
1750501ef98fSMarcel Moolenaar# `flags' for serial drivers that support consoles like sio(4) and uart(4):
1751c8956b36SMarcel Moolenaar#	0x10	enable console support for this unit.  Other console flags
1752c8956b36SMarcel Moolenaar#		(if applicable) are ignored unless this is set.  Enabling
1753c8956b36SMarcel Moolenaar#		console support does not make the unit the preferred console.
1754c8956b36SMarcel Moolenaar#		Boot with -h or set boot_serial=YES in the loader.  For sio(4)
1755c8956b36SMarcel Moolenaar#		specifically, the 0x20 flag can also be set (see above).
1756c8956b36SMarcel Moolenaar#		Currently, at most one unit can have console support; the
1757c8956b36SMarcel Moolenaar#		first one (in config file order) with this flag set is
1758d51e8487SJosh Paetzel#		preferred.  Setting this flag for sio0 gives the old behavior.
1759c8956b36SMarcel Moolenaar#	0x80	use this port for serial line gdb support in ddb.  Also known
1760c8956b36SMarcel Moolenaar#		as debug port.
17619546766aSBruce Evans#
17629546766aSBruce Evans
1763501ef98fSMarcel Moolenaar# Options for serial drivers that support consoles:
176491ed2fecSJohn-Mark Gurneyoptions 	BREAK_TO_DEBUGGER	# A BREAK/DBG on the console goes to
1765c8956b36SMarcel Moolenaar					# ddb, if available.
17666a8d6623SGarrett Wollman
176726b6ea69SPaul Saab# Solaris implements a new BREAK which is initiated by a character
176826b6ea69SPaul Saab# sequence CR ~ ^b which is similar to a familiar pattern used on
17699c0ef6d5SOliver Fromme# Sun servers by the Remote Console.  There are FreeBSD extensions:
1770c7b3d8e2SMaxim Konovalov# CR ~ ^p requests force panic and CR ~ ^r requests a clean reboot.
177126b6ea69SPaul Saaboptions 	ALT_BREAK_TO_DEBUGGER
177226b6ea69SPaul Saab
1773af2e25a6SMarcel Moolenaar# Serial Communications Controller
1774af2e25a6SMarcel Moolenaar# Supports the Siemens SAB 82532 and Zilog Z8530 multi-channel
1775af2e25a6SMarcel Moolenaar# communications controllers.
1776af2e25a6SMarcel Moolenaardevice		scc
1777af2e25a6SMarcel Moolenaar
17789c564b6cSJohn Hay# PCI Universal Communications driver
177964220a7eSMarcel Moolenaar# Supports various multi port PCI I/O cards.
17809c564b6cSJohn Haydevice		puc
17819c564b6cSJohn Hay
17826a8d6623SGarrett Wollman#
1783d61e6649SAlexander Langer# Network interfaces:
17846a8d6623SGarrett Wollman#
1785dfd77572SJohn Baldwin# MII bus support is required for many PCI Ethernet NICs,
1786d61e6649SAlexander Langer# namely those which use MII-compliant transceivers or implement
17873c7c6c12SMike Pritchard# transceiver control interfaces that operate like an MII.  Adding
17888c1093fcSMarius Strobl# "device miibus" to the kernel config pulls in support for the generic
17898c1093fcSMarius Strobl# miibus API, the common support for for bit-bang'ing the MII and all
17908c1093fcSMarius Strobl# of the PHY drivers, including a generic one for PHYs that aren't
17918c1093fcSMarius Strobl# specifically handled by an individual driver.  Support for specific
17928c1093fcSMarius Strobl# PHYs may be built by adding "device mii", "device mii_bitbang" if
17938c1093fcSMarius Strobl# needed by the NIC driver and then adding the appropriate PHY driver.
1794dfd77572SJohn Baldwindevice  	mii		# Minimal MII support
17958c1093fcSMarius Strobldevice  	mii_bitbang	# Common module for bit-bang'ing the MII
17968c1093fcSMarius Strobldevice  	miibus		# MII support w/ bit-bang'ing and all PHYs
1797dfd77572SJohn Baldwin
1798dfd77572SJohn Baldwindevice  	acphy		# Altima Communications AC101
1799dfd77572SJohn Baldwindevice  	amphy		# AMD AM79c873 / Davicom DM910{1,2}
1800dfd77572SJohn Baldwindevice  	atphy		# Attansic/Atheros F1
1801dfd77572SJohn Baldwindevice  	axphy		# Asix Semiconductor AX88x9x
1802dfd77572SJohn Baldwindevice  	bmtphy		# Broadcom BCM5201/BCM5202 and 3Com 3c905C
1803d933e97fSStephen Hurddevice		bnxt		# Broadcom NetXtreme-C/NetXtreme-E
1804dfd77572SJohn Baldwindevice  	brgphy		# Broadcom BCM54xx/57xx 1000baseTX
180578c1387fSIan Leporedevice  	cgem		# Cadence GEM Gigabit Ethernet
1806dfd77572SJohn Baldwindevice  	ciphy		# Cicada/Vitesse CS/VSC8xxx
1807dfd77572SJohn Baldwindevice  	e1000phy	# Marvell 88E1000 1000/100/10-BT
1808dfd77572SJohn Baldwindevice  	gentbi		# Generic 10-bit 1000BASE-{LX,SX} fiber ifaces
1809dfd77572SJohn Baldwindevice  	icsphy		# ICS ICS1889-1893
1810dfd77572SJohn Baldwindevice  	ip1000phy	# IC Plus IP1000A/IP1001
1811dfd77572SJohn Baldwindevice  	jmphy		# JMicron JMP211/JMP202
1812dfd77572SJohn Baldwindevice  	lxtphy		# Level One LXT-970
1813dfd77572SJohn Baldwindevice  	mlphy		# Micro Linear 6692
1814dfd77572SJohn Baldwindevice  	nsgphy		# NatSemi DP8361/DP83865/DP83891
1815dfd77572SJohn Baldwindevice  	nsphy		# NatSemi DP83840A
1816dfd77572SJohn Baldwindevice  	nsphyter	# NatSemi DP83843/DP83815
1817dfd77572SJohn Baldwindevice  	pnaphy		# HomePNA
1818dfd77572SJohn Baldwindevice  	qsphy		# Quality Semiconductor QS6612
1819e6713fe5SPyun YongHyeondevice  	rdcphy		# RDC Semiconductor R6040
1820dfd77572SJohn Baldwindevice  	rgephy		# RealTek 8169S/8110S/8211B/8211C
1821dfd77572SJohn Baldwindevice  	rlphy		# RealTek 8139
1822dfd77572SJohn Baldwindevice  	rlswitch	# RealTek 8305
1823dfd77572SJohn Baldwindevice  	smcphy		# SMSC LAN91C111
1824dfd77572SJohn Baldwindevice  	tdkphy		# TDK 89Q2120
1825dfd77572SJohn Baldwindevice  	tlphy		# Texas Instruments ThunderLAN
1826dfd77572SJohn Baldwindevice  	truephy		# LSI TruePHY
1827dfd77572SJohn Baldwindevice		xmphy		# XaQti XMAC II
1828d61e6649SAlexander Langer
18297f5092f3SJohn Baldwin# an:   Aironet 4500/4800 802.11 wireless adapters. Supports the PCMCIA,
18307f5092f3SJohn Baldwin#       PCI and ISA varieties.
1831ba26d470SStanislav Sedov# ae:   Support for gigabit ethernet adapters based on the Attansic/Atheros
1832ba26d470SStanislav Sedov#       L2 PCI-Express FastEthernet controllers.
1833cfef026aSPyun YongHyeon# age:  Support for gigabit ethernet adapters based on the Attansic/Atheros
1834cfef026aSPyun YongHyeon#       L1 PCI express gigabit ethernet controllers.
1835d68875ebSPyun YongHyeon# alc:  Support for Atheros AR8131/AR8132 PCIe ethernet controllers.
18363c6e15bcSPyun YongHyeon# ale:  Support for Atheros AR8121/AR8113/AR8114 PCIe ethernet controllers.
1837390cee87SJohn Baldwin# ath:  Atheros a/b/g WiFi adapters (requires ath_hal and wlan)
1838343ed0a8SJohn Baldwin# bce:	Broadcom NetXtreme II (BCM5706/BCM5708) PCI/PCIe Gigabit Ethernet
1839343ed0a8SJohn Baldwin#       adapters.
1840343ed0a8SJohn Baldwin# bfe:	Broadcom BCM4401 Ethernet adapter.
184195d67482SBill Paul# bge:	Support for gigabit ethernet adapters based on the Broadcom
1842586d7c2eSJohn Polstra#	BCM570x family of controllers, including the 3Com 3c996-T,
1843586d7c2eSJohn Polstra#	the Netgear GA302T, the SysKonnect SK-9D21 and SK-9D41, and
1844586d7c2eSJohn Polstra#	the embedded gigE NICs on Dell PowerEdge 2550 servers.
1845d933e97fSStephen Hurd# bnxt:	Broadcom NetXtreme-C and NetXtreme-E PCIe 10/25/50G Ethernet adapters.
18464e400768SDavid Christensen# bxe:	Broadcom NetXtreme II (BCM5771X/BCM578XX) PCIe 10Gb Ethernet
1847dd46ab31SDavid Christensen#       adapters.
18483132ad0dSWarner Losh# bwi:	Broadcom BCM430* and BCM431* family of wireless adapters.
1849eb5ef23cSWeongyo Jeong# bwn:	Broadcom BCM43xx family of wireless adapters.
1850119051cbSMarius Strobl# cas:	Sun Cassini/Cassini+ and National Semiconductor DP83065 Saturn
1851ca7fe84aSNavdeep Parhar# cxgb: Chelsio T3 based 1GbE/10GbE PCIe Ethernet adapters.
1852a74031a5SJohn Baldwin# cxgbe:Chelsio T4, T5, and T6-based 1/10/25/40/100GbE PCIe Ethernet
185324957938SJohn Baldwin#	adapters.
185424957938SJohn Baldwin# cxgbev: Chelsio T4, T5, and T6-based PCIe Virtual Functions.
1855d61e6649SAlexander Langer# dc:   Support for PCI fast ethernet adapters based on the DEC/Intel 21143
1856d61e6649SAlexander Langer#       and various workalikes including:
1857d61e6649SAlexander Langer#       the ADMtek AL981 Comet and AN985 Centaur, the ASIX Electronics
1858d61e6649SAlexander Langer#       AX88140A and AX88141, the Davicom DM9100 and DM9102, the Lite-On
1859d61e6649SAlexander Langer#       82c168 and 82c169 PNIC, the Lite-On/Macronix LC82C115 PNIC II
1860d61e6649SAlexander Langer#       and the Macronix 98713/98713A/98715/98715A/98725 PMAC. This driver
1861d61e6649SAlexander Langer#       replaces the old al, ax, dm, pn and mx drivers.  List of brands:
1862d61e6649SAlexander Langer#       Digital DE500-BA, Kingston KNE100TX, D-Link DFE-570TX, SOHOware SFA110,
1863d61e6649SAlexander Langer#       SVEC PN102-TX, CNet Pro110B, 120A, and 120B, Compex RL100-TX,
1864d61e6649SAlexander Langer#       LinkSys LNE100TX, LNE100TX V2.0, Jaton XpressNet, Alfa Inc GFC2204,
1865d61e6649SAlexander Langer#       KNE110TX.
1866a59716d2SPrafulla Deuskar# em:   Intel Pro/1000 Gigabit Ethernet 82542, 82543, 82544 based adapters.
1867d61e6649SAlexander Langer# fxp:  Intel EtherExpress Pro/100B
1868cf87044eSMatt Jacob#	(hint of prefer_iomap can be done to prefer I/O instead of Mem mapping)
18691ed3fed7SMarius Strobl# gem:  Apple GMAC/Sun ERI/Sun GEM
187052c07e1cSMarius Strobl# hme:  Sun HME (Happy Meal Ethernet)
187175a1bf5fSPyun YongHyeon# jme:  JMicron JMC260 Fast Ethernet/JMC250 Gigabit Ethernet based adapters.
187244ac0964SMarius Strobl# le:   AMD Am7900 LANCE and Am79C9xx PCnet
1873c678bc4fSBill Paul# lge:	Support for PCI gigabit ethernet adapters based on the Level 1
1874c678bc4fSBill Paul#	LXT1001 NetCellerator chipset. This includes the D-Link DGE-500SX,
1875c678bc4fSBill Paul#	SMC TigerCard 1000 (SMC9462SX), and some Addtron cards.
1876f173c2b7SSean Bruno# lio:  Support for Cavium 23XX Ethernet adapters
1877d1f25d5dSBernhard Schmidt# malo: Marvell Libertas wireless NICs.
1878d1f25d5dSBernhard Schmidt# mwl:  Marvell 88W8363 802.11n wireless NICs.
1879778eefa4SJohn Baldwin#	Requires the mwl firmware module
1880778eefa4SJohn Baldwin# mwlfw: Marvell 88W8363 firmware
1881c9d21ce9SPyun YongHyeon# msk:	Support for gigabit ethernet adapters based on the Marvell/SysKonnect
1882c9d21ce9SPyun YongHyeon#	Yukon II Gigabit controllers, including 88E8021, 88E8022, 88E8061,
1883c9d21ce9SPyun YongHyeon#	88E8062, 88E8035, 88E8036, 88E8038, 88E8050, 88E8052, 88E8053,
1884c9d21ce9SPyun YongHyeon#	88E8055, 88E8056 and D-Link 560T/550SX.
1885c9c8bf05SHans Petter Selasky# mlxfw: Mellanox firmware update module.
188622f2c49aSHans Petter Selasky# mlx5:	Mellanox ConnectX-4 and ConnectX-4 LX IB and Eth shared code module.
188722f2c49aSHans Petter Selasky# mlx5en:Mellanox ConnectX-4 and ConnectX-4 LX PCIe Ethernet adapters.
1888d3d67116SMaxim Sobolev# my:	Myson Fast Ethernet (MTD80X, MTD89X)
1889ce4946daSBill Paul# nge:	Support for PCI gigabit ethernet adapters based on the National
1890ce4946daSBill Paul#	Semiconductor DP83820 and DP83821 chipset. This includes the
1891ce4946daSBill Paul#	SMC EZ Card 1000 (SMC9462TX), D-Link DGE-500T, Asante FriendlyNet
1892cc2824b8SBjoern A. Zeeb#	GigaNIX 1000TA and 1000TPC, the Addtron AEG320T, the Surecom
1893cc2824b8SBjoern A. Zeeb#	EP-320G-TX and the Netgear GA622T.
18942f345d8eSLuigi Rizzo# oce:	Emulex 10 Gbit adapters (OneConnect Ethernet)
1895390cee87SJohn Baldwin# ral:	Ralink Technology IEEE 802.11 wireless adapter
18960587cad8SPyun YongHyeon# re:   RealTek 8139C+/8169/816xS/811xS/8101E PCI/PCIe Ethernet adapter
1897d61e6649SAlexander Langer# rl:   Support for PCI fast ethernet adapters based on the RealTek 8129/8139
1898d61e6649SAlexander Langer#       chipset.  Note that the RealTek driver defaults to using programmed
1899d61e6649SAlexander Langer#       I/O to do register accesses because memory mapped mode seems to cause
1900d61e6649SAlexander Langer#       severe lockups on SMP hardware.  This driver also supports the
1901d61e6649SAlexander Langer#       Accton EN1207D `Cheetah' adapter, which uses a chip called
1902d61e6649SAlexander Langer#       the MPX 5030/5038, which is either a RealTek in disguise or a
1903d61e6649SAlexander Langer#       RealTek workalike.  Note that the D-Link DFE-530TX+ uses the RealTek
1904d61e6649SAlexander Langer#       chipset and is supported by this driver, not the 'vr' driver.
1905b38b13d8SKevin Lo# rtwn: RealTek wireless adapters.
1906b38b13d8SKevin Lo# rtwnfw: RealTek wireless firmware.
1907d193ed0bSPyun YongHyeon# sge:  Silicon Integrated Systems SiS190/191 Fast/Gigabit Ethernet adapter
1908b2ca5572SAlexander Langer# sis:  Support for NICs based on the Silicon Integrated Systems SiS 900,
1909b2ca5572SAlexander Langer#       SiS 7016 and NS DP83815 PCI fast ethernet controller chips.
1910d61e6649SAlexander Langer# sk:   Support for the SysKonnect SK-984x series PCI gigabit ethernet NICs.
1911d61e6649SAlexander Langer#       This includes the SK-9841 and SK-9842 single port cards (single mode
1912d61e6649SAlexander Langer#       and multimode fiber) and the SK-9843 and SK-9844 dual port cards
1913d61e6649SAlexander Langer#       (also single mode and multimode).
1914d61e6649SAlexander Langer#       The driver will autodetect the number of ports on the card and
1915d61e6649SAlexander Langer#       attach each one as a separate network interface.
1916d61e6649SAlexander Langer# ste:  Sundance Technologies ST201 PCI fast ethernet controller, includes
1917d61e6649SAlexander Langer#       the D-Link DFE-550TX.
1918d497bdf1SPyun YongHyeon# stge: Support for gigabit ethernet adapters based on the Sundance/Tamarack
1919d497bdf1SPyun YongHyeon#       TC9021 family of controllers, including the Sundance ST2021/ST2023,
1920d497bdf1SPyun YongHyeon#       the Sundance/Tamarack TC9021, the D-Link DL-4000 and ASUS NX1101.
1921d61e6649SAlexander Langer# ti:   Support for PCI gigabit ethernet NICs based on the Alteon Networks
1922d61e6649SAlexander Langer#       Tigon 1 and Tigon 2 chipsets.  This includes the Alteon AceNIC, the
1923c86eb67fSDmitry Morozovsky#       3Com 3c985, the Netgear GA620 and various others.  Note that you will
1924c86eb67fSDmitry Morozovsky#       probably want to bump up kern.ipc.nmbclusters a lot to use this driver.
1925d61e6649SAlexander Langer# vr:   Support for various fast ethernet adapters based on the VIA
1926d61e6649SAlexander Langer#       Technologies VT3043 `Rhine I' and VT86C100A `Rhine II' chips,
1927e83bcc01SGavin Atkinson#       including the D-Link DFE520TX and D-Link DFE530TX (see 'rl' for
1928e83bcc01SGavin Atkinson#       DFE530TX+), the Hawking Technologies PN102TX, and the AOpen/Acer ALN-320.
19292608aefcSPyun YongHyeon# vte:  DM&P Vortex86 RDC R6040 Fast Ethernet
19307f5092f3SJohn Baldwin# wi:   Lucent WaveLAN/IEEE 802.11 PCMCIA adapters. Note: this supports both
19317f5092f3SJohn Baldwin#       the PCMCIA and ISA cards: the ISA card is really a PCMCIA to ISA
19327f5092f3SJohn Baldwin#       bridge with a PCMCIA adapter plugged into it.
1933d61e6649SAlexander Langer# xl:   Support for the 3Com 3c900, 3c905, 3c905B and 3c905C (Fast)
1934d61e6649SAlexander Langer#       Etherlink XL cards and integrated controllers.  This includes the
1935d61e6649SAlexander Langer#       integrated 3c905B-TX chips in certain Dell Optiplex and Dell
1936d61e6649SAlexander Langer#       Precision desktop machines and the integrated 3c905-TX chips
1937d61e6649SAlexander Langer#       in Dell Latitude laptop docking stations.
1938d61e6649SAlexander Langer#       Also supported: 3Com 3c980(C)-TX, 3Com 3cSOHO100-TX, 3Com 3c450-TX
1939d61e6649SAlexander Langer
194086d99b68SWarner Losh# Order for ISA devices is important here
19417f5092f3SJohn Baldwin
19427f5092f3SJohn Baldwindevice		an
19437f5092f3SJohn Baldwindevice		wi
19447f5092f3SJohn Baldwin
1945d61e6649SAlexander Langer# PCI Ethernet NICs that use the common MII bus controller code.
1946ba26d470SStanislav Sedovdevice		ae		# Attansic/Atheros L2 FastEthernet
1947cfef026aSPyun YongHyeondevice		age		# Attansic/Atheros L1 Gigabit Ethernet
1948d68875ebSPyun YongHyeondevice		alc		# Atheros AR8131/AR8132 Ethernet
19493c6e15bcSPyun YongHyeondevice		ale		# Atheros AR8121/AR8113/AR8114 Ethernet
1950343ed0a8SJohn Baldwindevice		bce		# Broadcom BCM5706/BCM5708 Gigabit Ethernet
1951343ed0a8SJohn Baldwindevice		bfe		# Broadcom BCM440x 10/100 Ethernet
1952343ed0a8SJohn Baldwindevice		bge		# Broadcom BCM570xx Gigabit Ethernet
1953119051cbSMarius Strobldevice		cas		# Sun Cassini/Cassini+ and NS DP83065 Saturn
1954d61e6649SAlexander Langerdevice		dc		# DEC/Intel 21143 and various workalikes
19554d52a575SXin LIdevice		et		# Agere ET1310 10/100/Gigabit Ethernet
19564664a8d5SJonathan Lemondevice		fxp		# Intel EtherExpress PRO/100B (82557, 82558)
1957*f9ba2bbeSWarner Loshenvvar		hint.fxp.0.prefer_iomap="0"
19581ed3fed7SMarius Strobldevice		gem		# Apple GMAC/Sun ERI/Sun GEM
195952c07e1cSMarius Strobldevice		hme		# Sun HME (Happy Meal Ethernet)
19600587cad8SPyun YongHyeondevice		jme		# JMicron JMC250 Gigabit/JMC260 Fast Ethernet
1961343ed0a8SJohn Baldwindevice		lge		# Level 1 LXT1001 gigabit Ethernet
1962c9c8bf05SHans Petter Selaskydevice		mlxfw		# Mellanox firmware update module
196322f2c49aSHans Petter Selaskydevice		mlx5		# Shared code module between IB and Ethernet
196422f2c49aSHans Petter Selaskydevice		mlx5en		# Mellanox ConnectX-4 and ConnectX-4 LX
19650587cad8SPyun YongHyeondevice		msk		# Marvell/SysKonnect Yukon II Gigabit Ethernet
1966d3d67116SMaxim Sobolevdevice		my		# Myson Fast Ethernet (MTD80X, MTD89X)
1967343ed0a8SJohn Baldwindevice		nge		# NatSemi DP83820 gigabit Ethernet
19680587cad8SPyun YongHyeondevice		re		# RealTek 8139C+/8169/8169S/8110S
1969d61e6649SAlexander Langerdevice		rl		# RealTek 8129/8139
1970d193ed0bSPyun YongHyeondevice		sge		# Silicon Integrated Systems SiS190/191
1971d61e6649SAlexander Langerdevice		sis		# Silicon Integrated Systems SiS 900/SiS 7016
1972343ed0a8SJohn Baldwindevice		sk		# SysKonnect SK-984x & SK-982x gigabit Ethernet
1973d61e6649SAlexander Langerdevice		ste		# Sundance ST201 (D-Link DFE-550TX)
19740587cad8SPyun YongHyeondevice		stge		# Sundance/Tamarack TC9021 gigabit Ethernet
1975d61e6649SAlexander Langerdevice		vr		# VIA Rhine, Rhine II
19762608aefcSPyun YongHyeondevice		vte		# DM&P Vortex86 RDC R6040 Fast Ethernet
1977d61e6649SAlexander Langerdevice		xl		# 3Com 3c90x (``Boomerang'', ``Cyclone'')
1978d61e6649SAlexander Langer
1979c75f49f7SKonstantin Belousov# PCI/PCI-X/PCIe Ethernet NICs that use iflib infrastructure
1980c75f49f7SKonstantin Belousovdevice		iflib
1981c75f49f7SKonstantin Belousovdevice		em		# Intel Pro/1000 Gigabit Ethernet
1982c75f49f7SKonstantin Belousovdevice		ix		# Intel Pro/10Gbe PCIE Ethernet
1983c75f49f7SKonstantin Belousovdevice		ixv		# Intel Pro/10Gbe PCIE Ethernet VF
1984c75f49f7SKonstantin Belousov
1985d61e6649SAlexander Langer# PCI Ethernet NICs.
19867f687043SJohn Baldwindevice		cxgb		# Chelsio T3 10 Gigabit Ethernet
19877f687043SJohn Baldwindevice		cxgb_t3fw	# Chelsio T3 10 Gigabit Ethernet firmware
1988a74031a5SJohn Baldwindevice		cxgbe		# Chelsio T4-T6 1/10/25/40/100 Gigabit Ethernet
1989a74031a5SJohn Baldwindevice		cxgbev		# Chelsio T4-T6 Virtual Functions
199044ac0964SMarius Strobldevice		le		# AMD Am7900 LANCE and Am79C9xx PCnet
1991f9ae0280SAndrew Gallatindevice		mxge		# Myricom Myri-10G 10GbE NIC
19922f345d8eSLuigi Rizzodevice		oce		# Emulex 10 GbE (OneConnect Ethernet)
19936e535f6eSRemko Lodderdevice		ti		# Alteon Networks Tigon I/II gigabit Ethernet
1994d61e6649SAlexander Langer
1995390cee87SJohn Baldwin# PCI IEEE 802.11 Wireless NICs
1996390cee87SJohn Baldwindevice		ath		# Atheros pci/cardbus NIC's
1997390cee87SJohn Baldwindevice		ath_hal		# pci/cardbus chip support
1998390cee87SJohn Baldwin#device		ath_ar5210	# AR5210 chips
1999390cee87SJohn Baldwin#device		ath_ar5211	# AR5211 chips
2000390cee87SJohn Baldwin#device		ath_ar5212	# AR5212 chips
2001390cee87SJohn Baldwin#device		ath_rf2413
2002390cee87SJohn Baldwin#device		ath_rf2417
2003390cee87SJohn Baldwin#device		ath_rf2425
2004390cee87SJohn Baldwin#device		ath_rf5111
2005390cee87SJohn Baldwin#device		ath_rf5112
2006390cee87SJohn Baldwin#device		ath_rf5413
2007390cee87SJohn Baldwin#device		ath_ar5416	# AR5416 chips
2008bc391cb2SWarner Losh# All of the AR5212 parts have a problem when paired with the AR71xx
2009bc391cb2SWarner Losh# CPUS.  These parts have a bug that triggers a fatal bus error on the AR71xx
2010bc391cb2SWarner Losh# only.  Details of the exact nature of the bug are sketchy, but some can be
2011bc391cb2SWarner Losh# found at https://forum.openwrt.org/viewtopic.php?pid=70060 on pages 4, 5 and
2012bc391cb2SWarner Losh# 6.  This option enables this workaround.  There is a performance penalty
2013bc391cb2SWarner Losh# for this work around, but without it things don't work at all.  The DMA
2014bc391cb2SWarner Losh# from the card usually bursts 128 bytes, but on the affected CPUs, only
2015bc391cb2SWarner Losh# 4 are safe.
2016bc391cb2SWarner Loshoptions	   	AH_RXCFG_SDMAMW_4BYTES
2017390cee87SJohn Baldwin#device		ath_ar9160	# AR9160 chips
2018390cee87SJohn Baldwin#device		ath_ar9280	# AR9280 chips
201958c4a5a1SRui Paulo#device		ath_ar9285	# AR9285 chips
2020390cee87SJohn Baldwindevice		ath_rate_sample	# SampleRate tx rate control for ath
2021390cee87SJohn Baldwindevice		bwi		# Broadcom BCM430* BCM431*
2022eb5ef23cSWeongyo Jeongdevice		bwn		# Broadcom BCM43xx
2023d1f25d5dSBernhard Schmidtdevice		malo		# Marvell Libertas wireless NICs.
2024d1f25d5dSBernhard Schmidtdevice		mwl		# Marvell 88W8363 802.11n wireless NICs.
2025778eefa4SJohn Baldwindevice		mwlfw
2026390cee87SJohn Baldwindevice		ral		# Ralink Technology RT2500 wireless NICs.
2027b38b13d8SKevin Lodevice		rtwn		# Realtek wireless NICs
2028b38b13d8SKevin Lodevice		rtwnfw
2029390cee87SJohn Baldwin
203010a4360cSPyun YongHyeon# Use sf_buf(9) interface for jumbo buffers on ti(4) controllers.
203110a4360cSPyun YongHyeon#options 	TI_SF_BUF_JUMBO
203298cb733cSKenneth D. Merry# Turn on the header splitting option for the ti(4) driver firmware.  This
203398cb733cSKenneth D. Merry# only works for Tigon II chips, and has no effect for Tigon I chips.
203410a4360cSPyun YongHyeon# This option requires the TI_SF_BUF_JUMBO option above.
2035b590f210SPyun YongHyeon#options 	TI_JUMBO_HDRSPLIT
203698cb733cSKenneth D. Merry
20372c8f5a28SKenneth D. Merry# These two options allow manipulating the mbuf cluster size and mbuf size,
20382c8f5a28SKenneth D. Merry# respectively.  Be very careful with NIC driver modules when changing
20392c8f5a28SKenneth D. Merry# these from their default values, because that can potentially cause a
20402c8f5a28SKenneth D. Merry# mismatch between the mbuf size assumed by the kernel and the mbuf size
20412c8f5a28SKenneth D. Merry# assumed by a module.  The only driver that currently has the ability to
20422c8f5a28SKenneth D. Merry# detect a mismatch is ti(4).
20432c8f5a28SKenneth D. Merryoptions 	MCLSHIFT=12	# mbuf cluster shift in bits, 12 == 4KB
20442c8f5a28SKenneth D. Merryoptions 	MSIZE=512	# mbuf size in bytes
20452c8f5a28SKenneth D. Merry
2046c19da41eSPeter Wemm#
20470739ea1dSSeigo Tanimura# Sound drivers
2048c19da41eSPeter Wemm#
20490739ea1dSSeigo Tanimura# sound: The generic sound driver.
2050c7406082SJohn-Mark Gurney#
20510739ea1dSSeigo Tanimura
20520739ea1dSSeigo Tanimuradevice		sound
20530739ea1dSSeigo Tanimura
20540739ea1dSSeigo Tanimura#
20550739ea1dSSeigo Tanimura# snd_*: Device-specific drivers.
2056c7406082SJohn-Mark Gurney#
20579c0ef6d5SOliver Fromme# The flags of the device tell the device a bit more info about the
20587f5092f3SJohn Baldwin# device that normally is obtained through the PnP interface.
20597f5092f3SJohn Baldwin#	bit  2..0   secondary DMA channel;
20607f5092f3SJohn Baldwin#	bit  4      set if the board uses two dma channels;
20617f5092f3SJohn Baldwin#	bit 15..8   board type, overrides autodetection; leave it
20627f5092f3SJohn Baldwin#		    zero if don't know what to put in (and you don't,
20637f5092f3SJohn Baldwin#		    since this is unsupported at the moment...).
20647f5092f3SJohn Baldwin#
2065c3a730dfSJoel Dahl# snd_ad1816:		Analog Devices AD1816 ISA PnP/non-PnP.
20660739ea1dSSeigo Tanimura# snd_als4000:		Avance Logic ALS4000 PCI.
2067d9bde1adSAriff Abdullah# snd_atiixp:		ATI IXP 200/300/400 PCI.
20680739ea1dSSeigo Tanimura# snd_cmi:		CMedia CMI8338/CMI8738 PCI.
20690739ea1dSSeigo Tanimura# snd_cs4281:		Crystal Semiconductor CS4281 PCI.
20700739ea1dSSeigo Tanimura# snd_csa:		Crystal Semiconductor CS461x/428x PCI. (except
20710739ea1dSSeigo Tanimura#			4281)
20720739ea1dSSeigo Tanimura# snd_ds1:		Yamaha DS-1 PCI.
20730739ea1dSSeigo Tanimura# snd_emu10k1:		Creative EMU10K1 PCI and EMU10K2 (Audigy) PCI.
20740fa7ab6aSAlexander Leidinger# snd_emu10kx:		Creative SoundBlaster Live! and Audigy
20759f548240SAlexander Leidinger# snd_envy24:		VIA Envy24 and compatible, needs snd_spicds.
20769f548240SAlexander Leidinger# snd_envy24ht:		VIA Envy24HT and compatible, needs snd_spicds.
20770739ea1dSSeigo Tanimura# snd_es137x:		Ensoniq AudioPCI ES137x PCI.
2078727ded3aSJoel Dahl# snd_ess:		Ensoniq ESS ISA PnP/non-PnP, to be used in
2079727ded3aSJoel Dahl#			conjunction with snd_sbc.
20800739ea1dSSeigo Tanimura# snd_fm801:		Forte Media FM801 PCI.
20810739ea1dSSeigo Tanimura# snd_gusc:		Gravis UltraSound ISA PnP/non-PnP.
20824b8939a1SAriff Abdullah# snd_hda:		Intel High Definition Audio (Controller) and
20834b8939a1SAriff Abdullah#			compatible.
2084e4afd792SAlexander Motin# snd_hdspe:		RME HDSPe AIO and RayDAT.
208517470869SAlexander Motin# snd_ich:		Intel ICH AC'97 and some more audio controllers
2086903b2fb9SJoel Dahl#			embedded in a chipset, for example nVidia
2087903b2fb9SJoel Dahl#			nForce controllers.
20880739ea1dSSeigo Tanimura# snd_maestro:		ESS Technology Maestro-1/2x PCI.
20890739ea1dSSeigo Tanimura# snd_maestro3:		ESS Technology Maestro-3/Allegro PCI.
20900739ea1dSSeigo Tanimura# snd_mss:		Microsoft Sound System ISA PnP/non-PnP.
20910739ea1dSSeigo Tanimura# snd_neomagic:		Neomagic 256 AV/ZX PCI.
20920739ea1dSSeigo Tanimura# snd_sb16:		Creative SoundBlaster16, to be used in
20931c9c6382SRuslan Ermilov#			conjunction with snd_sbc.
20940739ea1dSSeigo Tanimura# snd_sb8:		Creative SoundBlaster (pre-16), to be used in
20951c9c6382SRuslan Ermilov#			conjunction with snd_sbc.
20960739ea1dSSeigo Tanimura# snd_sbc:		Creative SoundBlaster ISA PnP/non-PnP.
20977f5092f3SJohn Baldwin#			Supports ESS and Avance ISA chips as well.
20980739ea1dSSeigo Tanimura# snd_solo:		ESS Solo-1x PCI.
2099de8d750fSJoel Dahl# snd_spicds:		SPI codec driver, needed by Envy24/Envy24HT drivers.
2100903b2fb9SJoel Dahl# snd_t4dwave:		Trident 4DWave DX/NX PCI, Sis 7018 PCI and Acer Labs
21010739ea1dSSeigo Tanimura#			M5451 PCI.
2102de8d750fSJoel Dahl# snd_uaudio:		USB audio.
21030739ea1dSSeigo Tanimura# snd_via8233:		VIA VT8233x PCI.
21040739ea1dSSeigo Tanimura# snd_via82c686:	VIA VT82C686A PCI.
21050739ea1dSSeigo Tanimura# snd_vibes:		S3 Sonicvibes PCI.
210681bb901eSPeter Wemm
2107f37a929cSPeter Wemmdevice		snd_ad1816
2108f37a929cSPeter Wemmdevice		snd_als4000
2109d9bde1adSAriff Abdullahdevice		snd_atiixp
21100739ea1dSSeigo Tanimuradevice		snd_cmi
2111f37a929cSPeter Wemmdevice		snd_cs4281
21120739ea1dSSeigo Tanimuradevice		snd_csa
2113f37a929cSPeter Wemmdevice		snd_ds1
2114f37a929cSPeter Wemmdevice		snd_emu10k1
21150fa7ab6aSAlexander Leidingerdevice		snd_emu10kx
2116b1ff0220SAlexander Leidingerdevice		snd_envy24
21179f548240SAlexander Leidingerdevice		snd_envy24ht
2118f37a929cSPeter Wemmdevice		snd_es137x
21190739ea1dSSeigo Tanimuradevice		snd_ess
2120f37a929cSPeter Wemmdevice		snd_fm801
21210739ea1dSSeigo Tanimuradevice		snd_gusc
21224b8939a1SAriff Abdullahdevice		snd_hda
2123e4afd792SAlexander Motindevice		snd_hdspe
21240739ea1dSSeigo Tanimuradevice		snd_ich
21250739ea1dSSeigo Tanimuradevice		snd_maestro
2126f37a929cSPeter Wemmdevice		snd_maestro3
21270739ea1dSSeigo Tanimuradevice		snd_mss
21280739ea1dSSeigo Tanimuradevice		snd_neomagic
2129f37a929cSPeter Wemmdevice		snd_sb16
2130f37a929cSPeter Wemmdevice		snd_sb8
21310739ea1dSSeigo Tanimuradevice		snd_sbc
21320739ea1dSSeigo Tanimuradevice		snd_solo
21339f548240SAlexander Leidingerdevice		snd_spicds
2134f37a929cSPeter Wemmdevice		snd_t4dwave
2135de8d750fSJoel Dahldevice		snd_uaudio
2136f37a929cSPeter Wemmdevice		snd_via8233
2137f37a929cSPeter Wemmdevice		snd_via82c686
21380739ea1dSSeigo Tanimuradevice		snd_vibes
2139c19da41eSPeter Wemm
21401c9c6382SRuslan Ermilov# For non-PnP sound cards:
2141*f9ba2bbeSWarner Loshenvvar		hint.pcm.0.at="isa"
2142*f9ba2bbeSWarner Loshenvvar		hint.pcm.0.irq="10"
2143*f9ba2bbeSWarner Loshenvvar		hint.pcm.0.drq="1"
2144*f9ba2bbeSWarner Loshenvvar		hint.pcm.0.flags="0x0"
2145*f9ba2bbeSWarner Loshenvvar		hint.sbc.0.at="isa"
2146*f9ba2bbeSWarner Loshenvvar		hint.sbc.0.port="0x220"
2147*f9ba2bbeSWarner Loshenvvar		hint.sbc.0.irq="5"
2148*f9ba2bbeSWarner Loshenvvar		hint.sbc.0.drq="1"
2149*f9ba2bbeSWarner Loshenvvar		hint.sbc.0.flags="0x15"
2150*f9ba2bbeSWarner Loshenvvar		hint.gusc.0.at="isa"
2151*f9ba2bbeSWarner Loshenvvar		hint.gusc.0.port="0x220"
2152*f9ba2bbeSWarner Loshenvvar		hint.gusc.0.irq="5"
2153*f9ba2bbeSWarner Loshenvvar		hint.gusc.0.drq="1"
2154*f9ba2bbeSWarner Loshenvvar		hint.gusc.0.flags="0x13"
21557f5092f3SJohn Baldwin
21566a8d6623SGarrett Wollman#
215718fe4678SAriff Abdullah# Following options are intended for debugging/testing purposes:
215818fe4678SAriff Abdullah#
215918fe4678SAriff Abdullah# SND_DEBUG                    Enable extra debugging code that includes
216018fe4678SAriff Abdullah#                              sanity checking and possible increase of
216118fe4678SAriff Abdullah#                              verbosity.
216218fe4678SAriff Abdullah#
2163d51e8487SJosh Paetzel# SND_DIAGNOSTIC               Similar in a spirit of INVARIANTS/DIAGNOSTIC,
216418fe4678SAriff Abdullah#                              zero tolerance against inconsistencies.
216518fe4678SAriff Abdullah#
216618fe4678SAriff Abdullah# SND_FEEDER_MULTIFORMAT       By default, only 16/32 bit feeders are compiled
216718fe4678SAriff Abdullah#                              in. This options enable most feeder converters
216818fe4678SAriff Abdullah#                              except for 8bit. WARNING: May bloat the kernel.
216918fe4678SAriff Abdullah#
217018fe4678SAriff Abdullah# SND_FEEDER_FULL_MULTIFORMAT  Ditto, but includes 8bit feeders as well.
217118fe4678SAriff Abdullah#
217218fe4678SAriff Abdullah# SND_FEEDER_RATE_HP           (feeder_rate) High precision 64bit arithmetic
217318fe4678SAriff Abdullah#                              as much as possible (the default trying to
217418fe4678SAriff Abdullah#                              avoid it). Possible slowdown.
217518fe4678SAriff Abdullah#
217618fe4678SAriff Abdullah# SND_PCM_64                   (Only applicable for i386/32bit arch)
217718fe4678SAriff Abdullah#                              Process 32bit samples through 64bit
217818fe4678SAriff Abdullah#                              integer/arithmetic. Slight increase of dynamic
217918fe4678SAriff Abdullah#                              range at a cost of possible slowdown.
218018fe4678SAriff Abdullah#
218118fe4678SAriff Abdullah# SND_OLDSTEREO                Only 2 channels are allowed, effectively
218218fe4678SAriff Abdullah#                              disabling multichannel processing.
218318fe4678SAriff Abdullah#
218418fe4678SAriff Abdullahoptions		SND_DEBUG
218518fe4678SAriff Abdullahoptions		SND_DIAGNOSTIC
218618fe4678SAriff Abdullahoptions		SND_FEEDER_MULTIFORMAT
218718fe4678SAriff Abdullahoptions		SND_FEEDER_FULL_MULTIFORMAT
218818fe4678SAriff Abdullahoptions		SND_FEEDER_RATE_HP
218918fe4678SAriff Abdullahoptions		SND_PCM_64
219018fe4678SAriff Abdullahoptions		SND_OLDSTEREO
219118fe4678SAriff Abdullah
219218fe4678SAriff Abdullah#
2193567e21c2SBruce Evans# Miscellaneous hardware:
21946a8d6623SGarrett Wollman#
2195603d67aeSRink Springer# cmx: OmniKey CardMan 4040 pccard smartcard reader
2196657e73c4SPeter Dufault
2197603d67aeSRink Springerdevice		cmx
2198a800f455SJulian Elischer
2199eeb706c0SJustin T. Gibbs#
22006e818956SDavid E. O'Brien# PC Card/PCMCIA and Cardbus
22016e818956SDavid E. O'Brien#
22025bcb64f2SWarner Losh# cbb: pci/cardbus bridge implementing YENTA interface
22036e818956SDavid E. O'Brien# pccard: pccard slots
22046e818956SDavid E. O'Brien# cardbus: cardbus slots
22056e818956SDavid E. O'Briendevice		cbb
22066e818956SDavid E. O'Briendevice		pccard
22076e818956SDavid E. O'Briendevice		cardbus
22086e818956SDavid E. O'Brien
22096e818956SDavid E. O'Brien#
22105bcb64f2SWarner Losh# MMC/SD
22115bcb64f2SWarner Losh#
2212831f5dcfSAlexander Motin# mmc 		MMC/SD bus
2213831f5dcfSAlexander Motin# mmcsd		MMC/SD memory card
2214831f5dcfSAlexander Motin# sdhci		Generic PCI SD Host Controller
2215831f5dcfSAlexander Motin#
2216831f5dcfSAlexander Motindevice		mmc
2217831f5dcfSAlexander Motindevice		mmcsd
2218831f5dcfSAlexander Motindevice		sdhci
22195bcb64f2SWarner Losh
22205bcb64f2SWarner Losh#
22218afa373cSNicolas Souchu# SMB bus
22228afa373cSNicolas Souchu#
22233c5656bfSArchie Cobbs# System Management Bus support is provided by the 'smbus' device.
22243c5656bfSArchie Cobbs# Access to the SMBus device is via the 'smb' device (/dev/smb*),
22253c5656bfSArchie Cobbs# which is a child of the 'smbus' device.
22268afa373cSNicolas Souchu#
22278afa373cSNicolas Souchu# Supported devices:
22284d5f30e0SRuslan Ermilov# smb		standard I/O through /dev/smb*
22298afa373cSNicolas Souchu#
22303c5656bfSArchie Cobbs# Supported SMB interfaces:
223128ebb692SNicolas Souchu# iicsmb	I2C to SMB bridge with any iicbus interface
22327f5092f3SJohn Baldwin# intpm		Intel PIIX4 (82371AB, 82443MX) Power Management Unit
22337f5092f3SJohn Baldwin# alpm		Acer Aladdin-IV/V/Pro2 Power Management Unit
22347f5092f3SJohn Baldwin# ichsmb	Intel ICH SMBus controller chips (82801AA, 82801AB, 82801BA)
22357f5092f3SJohn Baldwin# viapm		VIA VT82C586B/596B/686A and VT8233 Power Management Unit
2236b1acc4a2SMurray Stokely# amdpm		AMD 756 Power Management Unit
22374d5f30e0SRuslan Ermilov# amdsmb	AMD 8111 SMBus 2.0 Controller
223844e6ce01SNicolas Souchu# nfpm		NVIDIA nForce Power Management Unit
22394d5f30e0SRuslan Ermilov# nfsmb		NVIDIA nForce2/3/4 MCP SMBus 2.0 Controller
22400572ccaaSJim Harris# ismt		Intel SMBus 2.0 controller chips (on Atom S1200, C2000)
22418afa373cSNicolas Souchu#
2242c9953c3bSPeter Wemmdevice		smbus		# Bus support, required for smb below.
22433c5656bfSArchie Cobbs
22447f5092f3SJohn Baldwindevice		intpm
22457f5092f3SJohn Baldwindevice		alpm
22467f5092f3SJohn Baldwindevice		ichsmb
22477f5092f3SJohn Baldwindevice		viapm
224844e6ce01SNicolas Souchudevice		amdpm
22494d5f30e0SRuslan Ermilovdevice		amdsmb
225044e6ce01SNicolas Souchudevice		nfpm
22514d5f30e0SRuslan Ermilovdevice		nfsmb
22520572ccaaSJim Harrisdevice		ismt
22537f5092f3SJohn Baldwin
2254c9953c3bSPeter Wemmdevice		smb
22558afa373cSNicolas Souchu
22564afdfe97SAndriy Gapon# SMBus peripheral devices
22578afa373cSNicolas Souchu#
2258dcd935dfSRavi Pokala# jedec_dimm	Asset and temperature reporting for DDR3 and DDR4 DIMMs
22594afdfe97SAndriy Gapon#
2260dcd935dfSRavi Pokaladevice		jedec_dimm
22614afdfe97SAndriy Gapon
22628afa373cSNicolas Souchu# I2C Bus
22638afa373cSNicolas Souchu#
22648afa373cSNicolas Souchu# Philips i2c bus support is provided by the `iicbus' device.
22658afa373cSNicolas Souchu#
22668afa373cSNicolas Souchu# Supported devices:
22678afa373cSNicolas Souchu# ic	i2c network interface
22688afa373cSNicolas Souchu# iic	i2c standard io
2269f7d09fbaSNicolas Souchu# iicsmb i2c to smb bridge. Allow i2c i/o with smb commands.
22701ab68cbbSJayachandran C.# iicoc simple polling driver for OpenCores I2C controller
22718afa373cSNicolas Souchu#
227228ebb692SNicolas Souchu# Other:
2273daba5aceSWarner Losh# iicbb	generic I2C bit-banging code (needed by lpbb)
22748afa373cSNicolas Souchu#
2275c9953c3bSPeter Wemmdevice		iicbus		# Bus support, required for ic/iic/iicsmb below.
22766f3bd9a6SIan Leporedevice		iicbb		# bitbang driver; implements i2c on a pair of gpio pins
22778afa373cSNicolas Souchu
2278c9953c3bSPeter Wemmdevice		ic
22796f3bd9a6SIan Leporedevice		iic		# userland access to i2c slave devices via ioctl(8)
2280c9953c3bSPeter Wemmdevice		iicsmb		# smb over i2c bridge
22811ab68cbbSJayachandran C.device		iicoc		# OpenCores I2C controller support
22828afa373cSNicolas Souchu
2283422d05daSIan Lepore# I2C bus multiplexer (mux) devices
2284422d05daSIan Leporedevice		iicmux		# i2c mux core driver
2285422d05daSIan Leporedevice		iic_gpiomux	# i2c mux hardware controlled via gpio pins
2286422d05daSIan Leporedevice		ltc430x		# LTC4305 and LTC4306 i2c mux chips
2287422d05daSIan Lepore
2288286fa445SRafal Jaworowski# I2C peripheral devices
2289286fa445SRafal Jaworowski#
2290ac6a9e47SIan Leporedevice		ad7418		# Analog Devices temp and voltage sensor
22915177d294SIan Leporedevice		ads111x		# Texas Instruments ADS101x and ADS111x ADCs
229246ec180eSIan Leporedevice		ds1307		# Dallas DS1307 RTC and compatible
2293bb2e8108SIan Leporedevice		ds13rtc		# All Dallas/Maxim ds13xx chips
229446ec180eSIan Leporedevice		ds1672		# Dallas DS1672 RTC
229546ec180eSIan Leporedevice		ds3231		# Dallas DS3231 RTC + temperature
229646ec180eSIan Leporedevice		icee		# AT24Cxxx and compatible EEPROMs
2297ac6a9e47SIan Leporedevice		isl12xx		# Intersil ISL12xx RTC
229846ec180eSIan Leporedevice		lm75		# LM75 compatible temperature sensor
229946ec180eSIan Leporedevice		nxprtc		# NXP RTCs: PCA/PFC212x PCA/PCF85xx
2300ac6a9e47SIan Leporedevice		rtc8583		# Epson RTC-8583
230146ec180eSIan Leporedevice		s35390a		# Seiko Instruments S-35390A RTC
2302ac6a9e47SIan Leporedevice		sy8106a		# Silergy Corp. SY8106A buck regulator
2303ac6a9e47SIan Leporedevice		syr827		# Silergy Corp. DC/DC regulator
2304286fa445SRafal Jaworowski
2305ab4c624bSMike Smith# Parallel-Port Bus
2306ab4c624bSMike Smith#
2307ab4c624bSMike Smith# Parallel port bus support is provided by the `ppbus' device.
2308ab4c624bSMike Smith# Multiple devices may be attached to the parallel port, devices
2309ab4c624bSMike Smith# are automatically probed and attached when found.
2310ab4c624bSMike Smith#
2311ab4c624bSMike Smith# Supported devices:
2312fdf94d1aSNicolas Souchu# lpt	Parallel Printer
231346f3ff79SMike Smith# plip	Parallel network interface
2314fdf94d1aSNicolas Souchu# ppi	General-purpose I/O ("Geek Port") + IEEE1284 I/O
2315f7d09fbaSNicolas Souchu# pps	Pulse per second Timing Interface
231628ebb692SNicolas Souchu# lpbb	Philips official parallel port I2C bit-banging interface
23171caef332SWojciech A. Koszek# pcfclock Parallel port clock driver.
2318ab4c624bSMike Smith#
2319ab4c624bSMike Smith# Supported interfaces:
2320ab4c624bSMike Smith# ppc	ISA-bus parallel port interfaces.
2321ab4c624bSMike Smith#
2322ef8f7626SNicolas Souchu
23230f210c92SNicolas Souchuoptions 	PPC_PROBE_CHIPSET # Enable chipset specific detection
23240f210c92SNicolas Souchu				  # (see flags in ppc(4))
23255895e3c8SPeter Wemmoptions 	DEBUG_1284	# IEEE1284 signaling protocol debug
23269d5abbddSJens Schweikhardtoptions 	PERIPH_1284	# Makes your computer act as an IEEE1284
2327ef8f7626SNicolas Souchu				# compliant peripheral
23285895e3c8SPeter Wemmoptions 	DONTPROBE_1284	# Avoid boot detection of PnP parallel devices
23295895e3c8SPeter Wemmoptions 	LPT_DEBUG	# Printer driver debug
23305895e3c8SPeter Wemmoptions 	PPC_DEBUG	# Parallel chipset level debug
23315895e3c8SPeter Wemmoptions 	PLIP_DEBUG	# Parallel network IP interface debug
23323b2d592cSJordan K. Hubbardoptions 	PCFCLOCK_VERBOSE         # Verbose pcfclock driver
23333b2d592cSJordan K. Hubbardoptions 	PCFCLOCK_MAX_RETRIES=5   # Maximum read tries (default 10)
2334ef8f7626SNicolas Souchu
2335f71c01ccSPeter Wemmdevice		ppc
2336*f9ba2bbeSWarner Loshenvvar		hint.ppc.0.at="isa"
2337*f9ba2bbeSWarner Loshenvvar		hint.ppc.0.irq="7"
23380d31b179SPeter Wemmdevice		ppbus
23390d31b179SPeter Wemmdevice		lpt
23400d31b179SPeter Wemmdevice		plip
23410d31b179SPeter Wemmdevice		ppi
23420d31b179SPeter Wemmdevice		pps
23430d31b179SPeter Wemmdevice		lpbb
23440d31b179SPeter Wemmdevice		pcfclock
2345ab4c624bSMike Smith
23466e36309dSIan Lepore# General Purpose I/O pins
2347446e035cSRuslan Bukindevice		dwgpio		# Synopsys DesignWare APB GPIO Controller
23486e36309dSIan Leporedevice  	gpio		# gpio interfaces and bus support
23496e36309dSIan Leporedevice  	gpiobacklight	# sysctl control of gpio-based backlight
23506e36309dSIan Leporedevice  	gpioiic		# i2c via gpio bitbang
23516e36309dSIan Leporedevice  	gpiokeys	# kbd(4) glue for gpio-based key input
23526e36309dSIan Leporedevice  	gpioled		# led(4) gpio glue
23536e36309dSIan Leporedevice  	gpiopower	# event handler for gpio-based powerdown
23546e36309dSIan Leporedevice  	gpiopps		# Pulse per second input from gpio pin
23556e36309dSIan Leporedevice  	gpioregulator	# extres/regulator glue for gpio pin
23566e36309dSIan Leporedevice  	gpiospi		# SPI via gpio bitbang
23576e36309dSIan Leporedevice  	gpioths		# 1-wire temp/humidity sensor on gpio pin
23586e36309dSIan Lepore
23590bab2b6eSIan Lepore# Pulse width modulation
23600bab2b6eSIan Leporedevice  	pwmbus		# pwm interface and bus support
23610bab2b6eSIan Leporedevice  	pwmc		# userland control access to pwm outputs
23620bab2b6eSIan Lepore
2363f45757caSChristian Brueffer#
2364f45757caSChristian Brueffer# Etherswitch framework and drivers
2365f45757caSChristian Brueffer#
2366f45757caSChristian Brueffer# etherswitch	The etherswitch(4) framework
2367f45757caSChristian Brueffer# miiproxy	Proxy device for miibus(4) functionality
2368f45757caSChristian Brueffer#
2369f45757caSChristian Brueffer# Switch hardware support:
2370f45757caSChristian Brueffer# arswitch	Atheros switches
2371f45757caSChristian Brueffer# ip17x 	IC+ 17x family switches
2372f45757caSChristian Brueffer# rtl8366r	Realtek RTL8366 switches
2373f45757caSChristian Brueffer# ukswitch	Multi-PHY switches
2374f45757caSChristian Brueffer#
2375f45757caSChristian Bruefferdevice		etherswitch
2376f45757caSChristian Bruefferdevice		miiproxy
2377f45757caSChristian Bruefferdevice		arswitch
2378f45757caSChristian Bruefferdevice		ip17x
2379f45757caSChristian Bruefferdevice		rtl8366rb
2380f45757caSChristian Bruefferdevice		ukswitch
2381f45757caSChristian Brueffer
23820ac40133SBrian Somers# Kernel BOOTP support
23830ac40133SBrian Somers
23840ac40133SBrian Somersoptions 	BOOTP		# Use BOOTP to obtain IP address/hostname
2385c15882f0SRick Macklem				# Requires NFSCL and NFS_ROOT
23860ac40133SBrian Somersoptions 	BOOTP_NFSROOT	# NFS mount root filesystem using BOOTP info
23870ac40133SBrian Somersoptions 	BOOTP_NFSV3	# Use NFS v3 to NFS mount root
23880ac40133SBrian Somersoptions 	BOOTP_COMPAT	# Workaround for broken bootp daemons.
23890ac40133SBrian Somersoptions 	BOOTP_WIRED_TO=fxp0 # Use interface fxp0 for BOOTP
2390eead3ae9SBenno Riceoptions 	BOOTP_BLOCKSIZE=8192 # Override NFS block size
2391432aad0eSTor Egge
2392d94f38acSEivind Eklund#
2393d626b50bSMike Karels# Enable software watchdog routines, even if hardware watchdog is present.
2394d626b50bSMike Karels# By default, software watchdog timer is enabled only if no hardware watchdog
2395d626b50bSMike Karels# is present.
2396370c3cb5SSean Kelly#
23974103b765SPoul-Henning Kampoptions 	SW_WATCHDOG
2398370c3cb5SSean Kelly
2399370c3cb5SSean Kelly#
2400f7829d0dSAttilio Rao# Add the software deadlock resolver thread.
2401f7829d0dSAttilio Rao#
2402f7829d0dSAttilio Raooptions 	DEADLKRES
2403f7829d0dSAttilio Rao
2404f7829d0dSAttilio Rao#
2405b99d6e6fSDavid Schultz# Disable swapping of stack pages.  This option removes all
24064e0ee531SMike Barcroft# code which actually performs swapping, so it's not possible to turn
24074e0ee531SMike Barcroft# it back on at run-time.
2408c796cfa1SAndrzej Bialecki#
2409c796cfa1SAndrzej Bialecki# This is sometimes usable for systems which don't have any swap space
24103c4c0efdSBryan Drewery# (see also sysctl "vm.disable_swapspace_pageouts")
2411c796cfa1SAndrzej Bialecki#
241219dde963SPeter Wemm#options 	NO_SWAPPING
2413c796cfa1SAndrzej Bialecki
24149dab0776SDavid Greenman# Set the number of sf_bufs to allocate. sf_bufs are virtual buffers
24159dab0776SDavid Greenman# for sendfile(2) that are used to map file VM pages, and normally
24169dab0776SDavid Greenman# default to a quantity that is roughly 16*MAXUSERS+512. You would
24179dab0776SDavid Greenman# typically want about 4 of these for each simultaneous file send.
24189dab0776SDavid Greenman#
24195895e3c8SPeter Wemmoptions 	NSFBUFS=1024
24209dab0776SDavid Greenman
242115a1057cSEivind Eklund#
2422053a2b61SEivind Eklund# Enable extra debugging code for locks.  This stores the filename and
24239c0ef6d5SOliver Fromme# line of whatever acquired the lock in the lock itself, and changes a
2424053a2b61SEivind Eklund# number of function calls to pass around the relevant data.  This is
24252c048c4aSBryan Drewery# not at all useful unless you are debugging lock code.  Note that
24262c048c4aSBryan Drewery# modules should be recompiled as this option modifies KBI.
242715a1057cSEivind Eklund#
242815a1057cSEivind Eklundoptions 	DEBUG_LOCKS
242915a1057cSEivind Eklund
243026086a03SPeter Wemm
243126086a03SPeter Wemm#####################################################################
24321d33cf3dSNick Hibma# USB support
24331d33cf3dSNick Hibma# UHCI controller
2434c9953c3bSPeter Wemmdevice		uhci
24351d33cf3dSNick Hibma# OHCI controller
2436c9953c3bSPeter Wemmdevice		ohci
2437ca3acad1SBernd Walter# EHCI controller
2438ca3acad1SBernd Walterdevice		ehci
2439857508a3SAndrew Thompson# XHCI controller
2440857508a3SAndrew Thompsondevice		xhci
244139e5901eSTakanori Watanabe# SL811 Controller
2442b92755d1SAndrew Thompson#device		slhci
24431d33cf3dSNick Hibma# General USB code (mandatory for USB)
2444c9953c3bSPeter Wemmdevice		usb
24451d33cf3dSNick Hibma#
2446b5ea1f0cSNick Hibma# USB Double Bulk Pipe devices
2447b5ea1f0cSNick Hibmadevice		udbp
24482d45d793SHans Petter Selasky# USB temperature meter
24492d45d793SHans Petter Selaskydevice		ugold
24506bd03b20SKevin Lo# USB LED
24516bd03b20SKevin Lodevice		uled
2452f26c33d2SNick Hibma# Human Interface Device (anything with buttons and dials)
2453c9953c3bSPeter Wemmdevice		uhid
24541d33cf3dSNick Hibma# USB keyboard
2455c9953c3bSPeter Wemmdevice		ukbd
24561d33cf3dSNick Hibma# USB printer
2457c9953c3bSPeter Wemmdevice		ulpt
245831615ef7SRebecca Cran# USB mass storage driver (Requires scbus and da)
2459c9953c3bSPeter Wemmdevice		umass
246031615ef7SRebecca Cran# USB mass storage driver for device-side mode
246131615ef7SRebecca Crandevice		usfs
2462ce17576aSScott Long# USB support for Belkin F5U109 and Magic Control Technology serial adapters
2463ce17576aSScott Longdevice		umct
2464e9fb12d3SNick Hibma# USB modem support
2465e9fb12d3SNick Hibmadevice		umodem
2466f26c33d2SNick Hibma# USB mouse
2467c9953c3bSPeter Wemmdevice		ums
2468eed447b5SHans Petter Selasky# USB touchpad(s)
2469eed447b5SHans Petter Selaskydevice		atp
2470eed447b5SHans Petter Selaskydevice		wsp
2471f25a8a01SGleb Smirnoff# eGalax USB touch screen
2472f25a8a01SGleb Smirnoffdevice		uep
24731c9c6382SRuslan Ermilov# Diamond Rio 500 MP3 player
2474e2dbd15fSNick Hibmadevice		urio
2475d1233ab3SBruce Evans#
2476916e6e02SJosef Karthauser# USB serial support
2477916e6e02SJosef Karthauserdevice		ucom
2478fe75118bSNick Hibma# USB support for 3G modem cards by Option, Novatel, Huawei and Sierra
2479483b9e47SNick Hibmadevice		u3g
24809aab0d96SMaxim Konovalov# USB support for Technologies ARK3116 based serial adapters
24819aab0d96SMaxim Konovalovdevice		uark
2482d1233ab3SBruce Evans# USB support for Belkin F5U103 and compatible serial adapters
2483d1233ab3SBruce Evansdevice		ubsa
248448b68edfSJosef Karthauser# USB support for serial adapters based on the FT8U100AX and FT8U232AM
248548b68edfSJosef Karthauserdevice		uftdi
2486c5286e11STakanori Watanabe# USB support for some Windows CE based serial communication.
2487c5286e11STakanori Watanabedevice		uipaq
248848b68edfSJosef Karthauser# USB support for Prolific PL-2303 serial adapters
2489916e6e02SJosef Karthauserdevice		uplcom
24902e7328e7SRink Springer# USB support for Silicon Laboratories CP2101/CP2102 based USB serial adapters
24912e7328e7SRink Springerdevice		uslcom
249248b68edfSJosef Karthauser# USB Visor and Palm devices
249348b68edfSJosef Karthauserdevice		uvisor
2494d1233ab3SBruce Evans# USB serial support for DDI pocket's PHS
2495d1233ab3SBruce Evansdevice		uvscom
2496f26c33d2SNick Hibma#
2497ff6b30b9SKevin Lo# USB ethernet support
2498ff6b30b9SKevin Lodevice		uether
2499ed63a7aaSBill Paul# ADMtek USB ethernet. Supports the LinkSys USB100TX,
2500d04bb221SBill Paul# the Billionton USB100, the Melco LU-ATX, the D-Link DSB-650TX
2501d04bb221SBill Paul# and the SMC 2202USB. Also works with the ADMtek AN986 Pegasus
2502d04bb221SBill Paul# eval board.
2503c9953c3bSPeter Wemmdevice		aue
2504bf029145SRobert Watson
2505bf029145SRobert Watson# ASIX Electronics AX88172 USB 2.0 ethernet driver. Used in the
2506bf029145SRobert Watson# LinkSys USB200M and various other adapters.
2507bf029145SRobert Watsondevice		axe
250879eb99dfSLi-Wen Hsu# ASIX Electronics AX88178A/AX88179 USB 2.0/3.0 gigabit ethernet driver.
250979eb99dfSLi-Wen Hsudevice		axge
2510bf029145SRobert Watson
2511dfd1e98eSBill Paul#
25126bcf0032SMaxim Sobolev# Devices which communicate using Ethernet over USB, particularly
25136bcf0032SMaxim Sobolev# Communication Device Class (CDC) Ethernet specification. Supports
25146bcf0032SMaxim Sobolev# Sharp Zaurus PDAs, some DOCSIS cable modems and so on.
25156bcf0032SMaxim Sobolevdevice		cdce
25166bcf0032SMaxim Sobolev#
251701779872SBill Paul# CATC USB-EL1201A USB ethernet. Supports the CATC Netmate
251801779872SBill Paul# and Netmate II, and the Belkin F5U111.
2519c9953c3bSPeter Wemmdevice		cue
252001779872SBill Paul#
2521dfd1e98eSBill Paul# Kawasaki LSI ethernet. Supports the LinkSys USB10T,
2522d04bb221SBill Paul# Entrega USB-NET-E45, Peracom Ethernet Adapter, the
2523d04bb221SBill Paul# 3Com 3c19250, the ADS Technologies USB-10BT, the ATen UC10T,
252401779872SBill Paul# the Netgear EA101, the D-Link DSB-650, the SMC 2102USB
252501779872SBill Paul# and 2104USB, and the Corega USB-T.
2526c9953c3bSPeter Wemmdevice		kue
252711e04b05SShunsuke Akiyama#
252811e04b05SShunsuke Akiyama# RealTek RTL8150 USB to fast ethernet. Supports the Melco LUA-KTX
252911e04b05SShunsuke Akiyama# and the GREEN HOUSE GH-USB100B.
253011e04b05SShunsuke Akiyamadevice		rue
2531cdd40f3bSMIHIRA Sanpei Yoshiro#
2532cdd40f3bSMIHIRA Sanpei Yoshiro# Davicom DM9601E USB to fast ethernet. Supports the Corega FEther USB-TXC.
2533cdd40f3bSMIHIRA Sanpei Yoshirodevice		udav
2534941e2863SAndrew Thompson#
2535a24d62b5SKevin Lo# RealTek RTL8152/RTL8153 USB Ethernet driver
2536e1b74f21SKevin Lodevice		ure
2537e1b74f21SKevin Lo#
253822445463SKevin Lo# Moschip MCS7730/MCS7840 USB to fast ethernet. Supports the Sitecom LN030.
253922445463SKevin Lodevice		mos
254022445463SKevin Lo#
2541941e2863SAndrew Thompson# HSxPA devices from Option N.V
2542941e2863SAndrew Thompsondevice		uhso
2543cdd40f3bSMIHIRA Sanpei Yoshiro
254431d98677SRui Paulo# Realtek RTL8188SU/RTL8191SU/RTL8192SU wireless driver
254531d98677SRui Paulodevice		rsu
25468a4cd00aSWarner Losh#
254771aa1d32SSam Leffler# Ralink Technology RT2501USB/RT2601USB wireless driver
254871aa1d32SSam Lefflerdevice		rum
254993393dfdSAndrew Thompson# Ralink Technology RT2700U/RT2800U/RT3000U wireless driver
255093393dfdSAndrew Thompsondevice		run
25518a4cd00aSWarner Losh#
255271aa1d32SSam Leffler# Atheros AR5523 wireless driver
255371aa1d32SSam Lefflerdevice		uath
255471aa1d32SSam Leffler#
2555d1f25d5dSBernhard Schmidt# Conexant/Intersil PrismGT wireless driver
2556d1f25d5dSBernhard Schmidtdevice		upgt
2557d1f25d5dSBernhard Schmidt#
255871aa1d32SSam Leffler# Ralink Technology RT2500USB wireless driver
25598a4cd00aSWarner Loshdevice		ural
25608a4cd00aSWarner Losh#
256129311227SHans Petter Selasky# RNDIS USB ethernet driver
256229311227SHans Petter Selaskydevice		urndis
25635aaea652SKevin Lo# Realtek RTL8187B/L wireless driver
25645aaea652SKevin Lodevice		urtw
25655aaea652SKevin Lo#
256671aa1d32SSam Leffler# ZyDas ZD1211/ZD1211B wireless driver
256771aa1d32SSam Lefflerdevice		zyd
256845b395cdSGleb Smirnoff#
256945b395cdSGleb Smirnoff# Sierra USB wireless driver
257045b395cdSGleb Smirnoffdevice		usie
2571f26c33d2SNick Hibma
25728a4cd00aSWarner Losh#
2573f26c33d2SNick Hibma# debugging options for the USB subsystem
25741d33cf3dSNick Hibma#
25751d33cf3dSNick Hibmaoptions 	USB_DEBUG
2576fe75118bSNick Hibmaoptions 	U3G_DEBUG
2577f26c33d2SNick Hibma
25786e8394b8SKazutaka YOKOTA# options for ukbd:
25796e8394b8SKazutaka YOKOTAoptions 	UKBD_DFLT_KEYMAP	# specify the built-in keymap
2580440f1cf7SBruce Evansmakeoptions	UKBD_DFLT_KEYMAP=jp.106
25816e8394b8SKazutaka YOKOTA
2582565f53bbSShunsuke Akiyama# options for uplcom:
25833c7c6c12SMike Pritchardoptions 	UPLCOM_INTR_INTERVAL=100	# interrupt pipe interval
2584565f53bbSShunsuke Akiyama						# in milliseconds
2585565f53bbSShunsuke Akiyama
258620280807SShunsuke Akiyama# options for uvscom:
258720280807SShunsuke Akiyamaoptions 	UVSCOM_DEFAULT_OPKTSIZE=8	# default output packet size
25883c7c6c12SMike Pritchardoptions 	UVSCOM_INTR_INTERVAL=100	# interrupt pipe interval
2589565f53bbSShunsuke Akiyama						# in milliseconds
259020280807SShunsuke Akiyama
25918b7ce2ffSSam Leffler#####################################################################
2592869093b1SHidetoshi Shimokawa# FireWire support
25937d2ba89bSJohn Baldwin
2594869093b1SHidetoshi Shimokawadevice		firewire	# FireWire bus code
25957d2ba89bSJohn Baldwindevice		sbp		# SCSI over Firewire (Requires scbus and da)
259679acdabbSHidetoshi Shimokawadevice		sbp_targ	# SBP-2 Target mode  (Requires scbus and targ)
2597869093b1SHidetoshi Shimokawadevice		fwe		# Ethernet over FireWire (non-standard!)
25981c9c6382SRuslan Ermilovdevice		fwip		# IP over FireWire (RFC2734 and RFC3146)
2599869093b1SHidetoshi Shimokawa
2600869093b1SHidetoshi Shimokawa#####################################################################
2601869093b1SHidetoshi Shimokawa# dcons support (Dumb Console Device)
2602869093b1SHidetoshi Shimokawa
2603869093b1SHidetoshi Shimokawadevice		dcons			# dumb console driver
2604869093b1SHidetoshi Shimokawadevice		dcons_crom		# FireWire attachment
2605869093b1SHidetoshi Shimokawaoptions 	DCONS_BUF_SIZE=16384	# buffer size
2606869093b1SHidetoshi Shimokawaoptions 	DCONS_POLL_HZ=100	# polling rate
2607869093b1SHidetoshi Shimokawaoptions 	DCONS_FORCE_CONSOLE=0	# force to be the primary console
2608869093b1SHidetoshi Shimokawaoptions 	DCONS_FORCE_GDB=1	# force to be the gdb device
26097d2ba89bSJohn Baldwin
26107d2ba89bSJohn Baldwin#####################################################################
26118b7ce2ffSSam Leffler# crypto subsystem
26128b7ce2ffSSam Leffler#
26131c9c6382SRuslan Ermilov# This is a port of the OpenBSD crypto framework.  Include this when
2614b2630c29SGeorge V. Neville-Neil# configuring IPSEC and when you have a h/w crypto device to accelerate
26151c9c6382SRuslan Ermilov# user applications that link to OpenSSL.
26168b7ce2ffSSam Leffler#
26171c9c6382SRuslan Ermilov# Drivers are ports from OpenBSD with some simple enhancements that have
26181c9c6382SRuslan Ermilov# been fed back to OpenBSD.
26198b7ce2ffSSam Leffler
26208b7ce2ffSSam Lefflerdevice		crypto		# core crypto support
2621b65946c6SJohn-Mark Gurney
2622b65946c6SJohn-Mark Gurney# Only install the cryptodev device if you are running tests, or know
2623e0b231cbSJohn-Mark Gurney# specifically why you need it.  In most cases, it is not needed and
2624e0b231cbSJohn-Mark Gurney# will make things slower.
26258b7ce2ffSSam Lefflerdevice		cryptodev	# /dev/crypto for access to h/w
26268b7ce2ffSSam Leffler
2627ac7e2c05SSam Lefflerdevice		rndtest		# FIPS 140-2 entropy tester
26288b7ce2ffSSam Leffler
26295033c43bSJohn Baldwindevice		ccr		# Chelsio T6
26305033c43bSJohn Baldwin
2631b7c4858fSSam Lefflerdevice		hifn		# Hifn 7951, 7781, etc.
2632b7c4858fSSam Leffleroptions 	HIFN_DEBUG	# enable debugging support: hw.hifn.debug
2633b7c4858fSSam Leffleroptions 	HIFN_RNDTEST	# enable rndtest support
2634b7c4858fSSam Leffler
26358b7ce2ffSSam Leffler#####################################################################
26368b7ce2ffSSam Leffler
26378b7ce2ffSSam Leffler
2638785d2100SJohn Birrell#
2639785d2100SJohn Birrell# Embedded system options:
2640785d2100SJohn Birrell#
2641785d2100SJohn Birrell# An embedded system might want to run something other than init.
26420fc9f11dSSergey Kandaurovoptions 	INIT_PATH=/sbin/init:/rescue/init
2643bc0e3a03SJeroen Ruigrok van der Werven
2644bc0e3a03SJeroen Ruigrok van der Werven# Debug options
2645bc0e3a03SJeroen Ruigrok van der Wervenoptions 	BUS_DEBUG	# enable newbus debugging
26461c9c6382SRuslan Ermilovoptions 	DEBUG_VFS_LOCKS	# enable VFS lock debugging
2647395bb186SSam Leffleroptions 	SOCKBUF_DEBUG	# enable sockbuf last record/mb tail checking
264841c1a233SGleb Smirnoffoptions 	IFMEDIA_DEBUG	# enable debugging in net/if_media.c
2649bc0e3a03SJeroen Ruigrok van der Werven
2650e2c1a4e9SBenno Rice#
2651e2c1a4e9SBenno Rice# Verbose SYSINIT
2652e2c1a4e9SBenno Rice#
2653e2c1a4e9SBenno Rice# Make the SYSINIT process performed by mi_startup() verbose.  This is very
2654e2c1a4e9SBenno Rice# useful when porting to a new architecture.  If DDB is also enabled, this
2655199b9ab8SIan Lepore# will print function names instead of addresses.  If defined with a value
2656199b9ab8SIan Lepore# of zero, the verbose code is compiled-in but disabled by default, and can
2657199b9ab8SIan Lepore# be enabled with the debug.verbose_sysinit=1 tunable.
2658e2c1a4e9SBenno Riceoptions 	VERBOSE_SYSINIT
2659e2c1a4e9SBenno Rice
2660446af86dSJohn Baldwin#####################################################################
2661446af86dSJohn Baldwin# SYSV IPC KERNEL PARAMETERS
2662446af86dSJohn Baldwin#
2663446af86dSJohn Baldwin# Maximum number of System V semaphores that can be used on the system at
2664446af86dSJohn Baldwin# one time.
2665446af86dSJohn Baldwinoptions 	SEMMNI=11
2666446af86dSJohn Baldwin
2667446af86dSJohn Baldwin# Total number of semaphores system wide
2668446af86dSJohn Baldwinoptions 	SEMMNS=61
2669446af86dSJohn Baldwin
2670446af86dSJohn Baldwin# Total number of undo structures in system
2671446af86dSJohn Baldwinoptions 	SEMMNU=31
2672446af86dSJohn Baldwin
2673446af86dSJohn Baldwin# Maximum number of System V semaphores that can be used by a single process
2674446af86dSJohn Baldwin# at one time.
2675446af86dSJohn Baldwinoptions 	SEMMSL=61
2676446af86dSJohn Baldwin
2677446af86dSJohn Baldwin# Maximum number of operations that can be outstanding on a single System V
2678446af86dSJohn Baldwin# semaphore at one time.
2679446af86dSJohn Baldwinoptions 	SEMOPM=101
2680446af86dSJohn Baldwin
2681446af86dSJohn Baldwin# Maximum number of undo operations that can be outstanding on a single
2682446af86dSJohn Baldwin# System V semaphore at one time.
2683446af86dSJohn Baldwinoptions 	SEMUME=11
2684446af86dSJohn Baldwin
2685446af86dSJohn Baldwin# Maximum number of shared memory pages system wide.
2686446af86dSJohn Baldwinoptions 	SHMALL=1025
2687446af86dSJohn Baldwin
2688446af86dSJohn Baldwin# Maximum size, in bytes, of a single System V shared memory region.
268925388b6cSBruce Evansoptions 	SHMMAX=(SHMMAXPGS*PAGE_SIZE+1)
2690446af86dSJohn Baldwinoptions 	SHMMAXPGS=1025
2691446af86dSJohn Baldwin
2692446af86dSJohn Baldwin# Minimum size, in bytes, of a single System V shared memory region.
2693446af86dSJohn Baldwinoptions 	SHMMIN=2
2694446af86dSJohn Baldwin
2695446af86dSJohn Baldwin# Maximum number of shared memory regions that can be used on the system
2696446af86dSJohn Baldwin# at one time.
2697446af86dSJohn Baldwinoptions 	SHMMNI=33
2698446af86dSJohn Baldwin
2699446af86dSJohn Baldwin# Maximum number of System V shared memory regions that can be attached to
2700446af86dSJohn Baldwin# a single process at one time.
2701446af86dSJohn Baldwinoptions 	SHMSEG=9
2702446af86dSJohn Baldwin
2703d9282887SDima Dorfman# Set the amount of time (in seconds) the system will wait before
2704d9282887SDima Dorfman# rebooting automatically when a kernel panic occurs.  If set to (-1),
2705d9282887SDima Dorfman# the system will wait indefinitely until a key is pressed on the
2706d9282887SDima Dorfman# console.
2707d9282887SDima Dorfmanoptions 	PANIC_REBOOT_WAIT_TIME=16
2708d9282887SDima Dorfman
27095bbb8060STor Egge# Attempt to bypass the buffer cache and put data directly into the
27105bbb8060STor Egge# userland buffer for read operation when O_DIRECT flag is set on the
27115bbb8060STor Egge# file.  Both offset and length of the read operation must be
27125bbb8060STor Egge# multiples of the physical media sector size.
27135bbb8060STor Egge#
2714995356dcSDag-Erling Smørgravoptions 	DIRECTIO
27155bbb8060STor Egge
27165bbb8060STor Egge# Specify a lower limit for the number of swap I/O buffers.  They are
27175bbb8060STor Egge# (among other things) used when bypassing the buffer cache due to
27185bbb8060STor Egge# DIRECTIO kernel option enabled and O_DIRECT flag set on file.
27195bbb8060STor Egge#
2720995356dcSDag-Erling Smørgravoptions 	NSWBUF_MIN=120
27215bbb8060STor Egge
2722446af86dSJohn Baldwin#####################################################################
2723446af86dSJohn Baldwin
2724bc0e3a03SJeroen Ruigrok van der Werven# More undocumented options for linting.
27259c0ef6d5SOliver Fromme# Note that documenting these is not considered an affront.
2726bc0e3a03SJeroen Ruigrok van der Werven
2727bc0e3a03SJeroen Ruigrok van der Wervenoptions 	CAM_DEBUG_DELAY
272828d7984fSJeroen Ruigrok van der Werven
272928d7984fSJeroen Ruigrok van der Werven# VFS cluster debugging.
2730bc0e3a03SJeroen Ruigrok van der Wervenoptions 	CLUSTERDEBUG
273128d7984fSJeroen Ruigrok van der Werven
2732bc0e3a03SJeroen Ruigrok van der Wervenoptions 	DEBUG
27338b6f5e65SJeroen Ruigrok van der Werven
273428d7984fSJeroen Ruigrok van der Werven# Kernel filelock debugging.
2735bc0e3a03SJeroen Ruigrok van der Wervenoptions 	LOCKF_DEBUG
273628d7984fSJeroen Ruigrok van der Werven
27378b6f5e65SJeroen Ruigrok van der Werven# System V compatible message queues
27388b6f5e65SJeroen Ruigrok van der Werven# Please note that the values provided here are used to test kernel
27398b6f5e65SJeroen Ruigrok van der Werven# building.  The defaults in the sources provide almost the same numbers.
27408b6f5e65SJeroen Ruigrok van der Werven# MSGSSZ must be a power of 2 between 8 and 1024.
27418b6f5e65SJeroen Ruigrok van der Wervenoptions 	MSGMNB=2049	# Max number of chars in queue
27428b6f5e65SJeroen Ruigrok van der Wervenoptions 	MSGMNI=41	# Max number of message queue identifiers
27438b6f5e65SJeroen Ruigrok van der Wervenoptions 	MSGSEG=2049	# Max number of message segments
27448b6f5e65SJeroen Ruigrok van der Wervenoptions 	MSGSSZ=16	# Size of a message segment
27458b6f5e65SJeroen Ruigrok van der Wervenoptions 	MSGTQL=41	# Max number of messages in system
27468b6f5e65SJeroen Ruigrok van der Werven
27478b6f5e65SJeroen Ruigrok van der Wervenoptions 	NBUF=512	# Number of buffer headers
27488b6f5e65SJeroen Ruigrok van der Werven
27498b6f5e65SJeroen Ruigrok van der Wervenoptions 	SC_DEBUG_LEVEL=5	# Syscons debug level
27508b6f5e65SJeroen Ruigrok van der Wervenoptions 	SC_RENDER_DEBUG	# syscons rendering debugging
27518b6f5e65SJeroen Ruigrok van der Werven
27528b6f5e65SJeroen Ruigrok van der Wervenoptions 	VFS_BIO_DEBUG	# VFS buffer I/O debugging
27538b6f5e65SJeroen Ruigrok van der Werven
2754316ec49aSScott Longoptions 	KSTACK_MAX_PAGES=32 # Maximum pages to give the kernel stack
2755b7627840SKonstantin Belousovoptions 	KSTACK_USAGE_PROF
2756316ec49aSScott Long
2757662d3818SScott Long# Adaptec Array Controller driver options
2758662d3818SScott Longoptions 	AAC_DEBUG	# Debugging levels:
2759662d3818SScott Long				# 0 - quiet, only emit warnings
2760662d3818SScott Long				# 1 - noisy, emit major function
2761662d3818SScott Long				#     points and things done
2762662d3818SScott Long				# 2 - extremely noisy, emit trace
2763662d3818SScott Long				#     items in loops, etc.
2764662d3818SScott Long
2765097055e2SEdward Tomasz Napierala# Resource Accounting
2766097055e2SEdward Tomasz Napieralaoptions 	RACCT
2767097055e2SEdward Tomasz Napierala
2768ec125fbbSEdward Tomasz Napierala# Resource Limits
2769ec125fbbSEdward Tomasz Napieralaoptions 	RCTL
2770ec125fbbSEdward Tomasz Napierala
27711e9ea774SBruce Evans# Yet more undocumented options for linting.
27721e9ea774SBruce Evansoptions 	MAXFILES=999
2773efba048eSXin LI
2774997b0a64SDag-Erling Smørgrav# Random number generator
277519fa89e9SMark Murray# Allow the CSPRNG algorithm to be loaded as a module.
277619fa89e9SMark Murray#options 	RANDOM_LOADABLE
2777e866d8f0SMark Murray# Select this to allow high-rate but potentially expensive
2778e866d8f0SMark Murray# harvesting of Slab-Allocator entropy. In very high-rate
2779e866d8f0SMark Murray# situations the value of doing this is dubious at best.
2780e866d8f0SMark Murrayoptions 	RANDOM_ENABLE_UMA	# slab allocator
278181e3caafSJustin Hibbits
2782a6bc59f2SMatt Macy# Select this to allow high-rate but potentially expensive
2783a6bc59f2SMatt Macy# harvesting of of the m_next pointer in the mbuf. Note that
2784a6bc59f2SMatt Macy# the m_next pointer is NULL except when receiving > 4K
2785a6bc59f2SMatt Macy# jumbo frames or sustained bursts by way of LRO. Thus in
2786a6bc59f2SMatt Macy# the common case it is stirring zero in to the entropy
2787a6bc59f2SMatt Macy# pool. In cases where it is not NULL it is pointing to one
2788a6bc59f2SMatt Macy# of a small (in the thousands to 10s of thousands) number
2789a6bc59f2SMatt Macy# of 256 byte aligned mbufs. Hence it is, even in the best
2790a6bc59f2SMatt Macy# case, a poor source of entropy. And in the absence of actual
2791a6bc59f2SMatt Macy# runtime analysis of entropy collection may mislead the user in
2792a6bc59f2SMatt Macy# to believe that substantially more entropy is being collected
2793a6bc59f2SMatt Macy# than in fact is - leading to a different class of security
2794a6bc59f2SMatt Macy# risk. In high packet rate situations ethernet entropy
2795a6bc59f2SMatt Macy# collection is also very expensive, possibly leading to as
2796a6bc59f2SMatt Macy# much as a 50% drop in packets received.
2797a6bc59f2SMatt Macy# This option is present to maintain backwards compatibility
2798a6bc59f2SMatt Macy# if desired, however it cannot be recommended for use in any
2799a6bc59f2SMatt Macy# environment.
2800a6bc59f2SMatt Macyoptions 	RANDOM_ENABLE_ETHER	# ether_input
2801a6bc59f2SMatt Macy
280281e3caafSJustin Hibbits# Module to enable execution of application via emulators like QEMU
280381e3caafSJustin Hibbitsoptions         IMAGACT_BINMISC
2804aa14e9b7SMark Johnston
2805aa14e9b7SMark Johnston# zlib I/O stream support
2806aa14e9b7SMark Johnston# This enables support for compressed core dumps.
2807aa14e9b7SMark Johnstonoptions 	GZIO
2808fb403678SAdrian Chadd
2809eefd8f96SConrad Meyer# zstd support
2810fb702b44SMatt Macy# This enables support for Zstd compressed core dumps, GEOM_UZIP images,
2811fb702b44SMatt Macy# and is required by zfs if statically linked.
28126026dcd7SMark Johnstonoptions 	ZSTDIO
28136026dcd7SMark Johnston
2814fb403678SAdrian Chadd# BHND(4) drivers
2815fb403678SAdrian Chaddoptions		BHND_LOGLEVEL	# Logging threshold level
28162b3f6d66SOleksandr Tymoshenko
28172b3f6d66SOleksandr Tymoshenko# evdev interface
2818a6b15a34SOleksandr Tymoshenkodevice		evdev		# input event device support
2819a6b15a34SOleksandr Tymoshenkooptions 	EVDEV_SUPPORT	# evdev support in legacy drivers
2820a6b15a34SOleksandr Tymoshenkooptions 	EVDEV_DEBUG	# enable event debug msgs
2821a6b15a34SOleksandr Tymoshenkodevice		uinput		# install /dev/uinput cdev
2822a6b15a34SOleksandr Tymoshenkooptions 	UINPUT_DEBUG	# enable uinput debug msgs
2823480f31c2SKonrad Witaszczyk
2824480f31c2SKonrad Witaszczyk# Encrypted kernel crash dumps.
2825480f31c2SKonrad Witaszczykoptions 	EKCD
28261fcf4de0SIan Lepore
28272d7e9271SIan Lepore# Serial Peripheral Interface (SPI) support.
28282d7e9271SIan Leporedevice		spibus		# Bus support.
28292d7e9271SIan Leporedevice		at45d		# DataFlash driver
28302d7e9271SIan Leporedevice		cqspi		#
28312d7e9271SIan Leporedevice		mx25l		# SPIFlash driver
28322d7e9271SIan Leporedevice		n25q		#
28332d7e9271SIan Leporedevice		spigen		# Generic access to SPI devices from userland.
28341fcf4de0SIan Lepore# Enable legacy /dev/spigenN name aliases for /dev/spigenX.Y devices.
28351fcf4de0SIan Leporeoptions 	SPIGEN_LEGACY_CDEVNAME # legacy device names for spigen
2836e8643b01SKonstantin Belousov
28370ed1d6fbSXin LI# Compression supports.
28380ed1d6fbSXin LIdevice		zlib		# gzip/zlib compression/decompression library
2839e8643b01SKonstantin Belousovdevice		xz		# xz_embedded LZMA de-compression library
28402ae3f52cSEdward Tomasz Napierala
28412ae3f52cSEdward Tomasz Napierala# Kernel support for stats(3).
28422ae3f52cSEdward Tomasz Napieralaoptions 	STATS
2843