xref: /freebsd/sys/conf/NOTES (revision 95033af923d35915c511f119dca0dc124e3b1c38)
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#
9b147fcf9SBruce Evans# Lines that begin with 'hint.' are NOT for config(8), they go into your
10f71c01ccSPeter Wemm# hints file.  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
1746ad9a99fSMarcel Moolenaaroptions 	GEOM_PART_EBR_COMPAT	# Backward compatible partition names
1751d3aed33SMarcel Moolenaaroptions 	GEOM_PART_GPT		# GPT partitioning
176e800e2e1SAndrey V. Elsukovoptions 	GEOM_PART_LDM		# Logical Disk Manager
1776bc50445SMarcel Moolenaaroptions 	GEOM_PART_MBR		# MBR partitioning
17810020e9dSMarcel Moolenaaroptions 	GEOM_PART_VTOC8		# SMI VTOC8 disk label
17989b17223SAlexander Motinoptions 	GEOM_RAID		# Soft RAID functionality.
180e81856c3SPawel Jakub Dawidekoptions 	GEOM_RAID3		# RAID3 functionality.
181560cb857SPawel Jakub Dawidekoptions 	GEOM_SHSEC		# Shared secret.
1827dc92b13SPawel Jakub Dawidekoptions 	GEOM_STRIPE		# Disk striping.
18375261008SMax Khonoptions 	GEOM_UZIP		# Read-only compressed disks
18402e17f0bSMarius Strobloptions 	GEOM_VINUM		# Vinum logical volume manager
185f854db0bSPawel Jakub Dawidekoptions 	GEOM_VIRSTOR		# Virtual storage.
1861c9c6382SRuslan Ermilovoptions 	GEOM_ZERO		# Performance testing helper.
1877b03a440SPoul-Henning Kamp
1888b140d57SMike Smith#
1898b140d57SMike Smith# The root device and filesystem type can be compiled in;
1908b140d57SMike Smith# this provides a fallback option if the root device cannot
1913b6c640cSCrist J. Clark# be correctly guessed by the bootstrap code, or an override if
1928b140d57SMike Smith# the RB_DFLTROOT flag (-r) is specified when booting the kernel.
1938b140d57SMike Smith#
1948b140d57SMike Smithoptions 	ROOTDEVNAME=\"ufs:da0s2e\"
1958b140d57SMike Smith
1966a8d6623SGarrett Wollman
1976a8d6623SGarrett Wollman#####################################################################
198f5d05ac3SJeff Roberson# Scheduler options:
199f5d05ac3SJeff Roberson#
200a61617edSGiorgos Keramidas# Specifying one of SCHED_4BSD or SCHED_ULE is mandatory.  These options
201f5d05ac3SJeff Roberson# select which scheduler is compiled in.
202f5d05ac3SJeff Roberson#
203f5d05ac3SJeff Roberson# SCHED_4BSD is the historical, proven, BSD scheduler.  It has a global run
2041c9c6382SRuslan Ermilov# queue and no CPU affinity which makes it suboptimal for SMP.  It has very
205f5d05ac3SJeff Roberson# good interactivity and priority selection.
206f5d05ac3SJeff Roberson#
207bd675f58SJeff Roberson# SCHED_ULE provides significant performance advantages over 4BSD on many
208bd675f58SJeff Roberson# workloads on SMP machines.  It supports cpu-affinity, per-cpu runqueues
209bd675f58SJeff Roberson# and scheduler locks.  It also has a stronger notion of interactivity
210bd675f58SJeff Roberson# which leads to better responsiveness even on uniprocessor machines.  This
2119c0ef6d5SOliver Fromme# is the default scheduler.
212f5d05ac3SJeff Roberson#
21375a66a92SJeff Roberson# SCHED_STATS is a debugging option which keeps some stats in the sysctl
21475a66a92SJeff Roberson# tree at 'kern.sched.stats' and is useful for debugging scheduling decisions.
21575a66a92SJeff Roberson#
216b998bd92SJeff Robersonoptions 	SCHED_4BSD
21775a66a92SJeff Robersonoptions 	SCHED_STATS
218b998bd92SJeff Roberson#options 	SCHED_ULE
219f5d05ac3SJeff Roberson
220f5d05ac3SJeff Roberson#####################################################################
221477a642cSPeter Wemm# SMP OPTIONS:
222477a642cSPeter Wemm#
223477a642cSPeter Wemm# SMP enables building of a Symmetric MultiProcessor Kernel.
224477a642cSPeter Wemm
225477a642cSPeter Wemm# Mandatory:
226477a642cSPeter Wemmoptions 	SMP			# Symmetric MultiProcessor Kernel
227477a642cSPeter Wemm
228fdce57a0SJohn Baldwin# EARLY_AP_STARTUP releases the Application Processors earlier in the
229fdce57a0SJohn Baldwin# kernel startup process (before devices are probed) rather than at the
230fdce57a0SJohn Baldwin# end.  This is a temporary option for use during the transition from
231fdce57a0SJohn Baldwin# late to early AP startup.
232fdce57a0SJohn Baldwinoptions		EARLY_AP_STARTUP
233fdce57a0SJohn Baldwin
23468b739cdSAttilio Rao# MAXCPU defines the maximum number of CPUs that can boot in the system.
23568b739cdSAttilio Rao# A default value should be already present, for every architecture.
23668b739cdSAttilio Raooptions 	MAXCPU=32
23768b739cdSAttilio Rao
238b6715dabSJeff Roberson# NUMA enables use of Non-Uniform Memory Access policies in various kernel
239b6715dabSJeff Roberson# subsystems.
240b6715dabSJeff Robersonoptions 	NUMA
241b6715dabSJeff Roberson
242941646f5SAttilio Rao# MAXMEMDOM defines the maximum number of memory domains that can boot in the
243941646f5SAttilio Rao# system.  A default value should already be defined by every architecture.
24462d70a81SJohn Baldwinoptions 	MAXMEMDOM=2
24562d70a81SJohn Baldwin
2462498cf8cSJohn Baldwin# ADAPTIVE_MUTEXES changes the behavior of blocking mutexes to spin
2472498cf8cSJohn Baldwin# if the thread that currently owns the mutex is executing on another
248d51e8487SJosh Paetzel# CPU.  This behavior is enabled by default, so this option can be used
249701f1408SScott Long# to disable it.
250701f1408SScott Longoptions 	NO_ADAPTIVE_MUTEXES
2512498cf8cSJohn Baldwin
252cd6e6e4eSJohn Baldwin# ADAPTIVE_RWLOCKS changes the behavior of reader/writer locks to spin
253cd6e6e4eSJohn Baldwin# if the thread that currently owns the rwlock is executing on another
254d51e8487SJosh Paetzel# CPU.  This behavior is enabled by default, so this option can be used
255cd6e6e4eSJohn Baldwin# to disable it.
256cd6e6e4eSJohn Baldwinoptions 	NO_ADAPTIVE_RWLOCKS
257cd6e6e4eSJohn Baldwin
2581ae1c2a3SAttilio Rao# ADAPTIVE_SX changes the behavior of sx locks to spin if the thread that
2591ae1c2a3SAttilio Rao# currently owns the sx lock is executing on another CPU.
260d51e8487SJosh Paetzel# This behavior is enabled by default, so this option can be used to
2611ae1c2a3SAttilio Rao# disable it.
2621ae1c2a3SAttilio Raooptions 	NO_ADAPTIVE_SX
2634e7f640dSJohn Baldwin
264ad27c4c7SJohn Baldwin# MUTEX_NOINLINE forces mutex operations to call functions to perform each
265ad27c4c7SJohn Baldwin# operation rather than inlining the simple cases.  This can be used to
266ad27c4c7SJohn Baldwin# shrink the size of the kernel text segment.  Note that this behavior is
267cf31ff26SRuslan Ermilov# already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
268ad27c4c7SJohn Baldwin# and WITNESS options.
269ad27c4c7SJohn Baldwinoptions 	MUTEX_NOINLINE
270ad27c4c7SJohn Baldwin
2711a5d9b15SJohn Baldwin# RWLOCK_NOINLINE forces rwlock operations to call functions to perform each
2721a5d9b15SJohn Baldwin# operation rather than inlining the simple cases.  This can be used to
2731a5d9b15SJohn Baldwin# shrink the size of the kernel text segment.  Note that this behavior is
274cf31ff26SRuslan Ermilov# already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
2751a5d9b15SJohn Baldwin# and WITNESS options.
2761a5d9b15SJohn Baldwinoptions 	RWLOCK_NOINLINE
2771a5d9b15SJohn Baldwin
2784e7f640dSJohn Baldwin# SX_NOINLINE forces sx lock operations to call functions to perform each
2794e7f640dSJohn Baldwin# operation rather than inlining the simple cases.  This can be used to
2804e7f640dSJohn Baldwin# shrink the size of the kernel text segment.  Note that this behavior is
2814e7f640dSJohn Baldwin# already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
2824e7f640dSJohn Baldwin# and WITNESS options.
2834e7f640dSJohn Baldwinoptions 	SX_NOINLINE
2844e7f640dSJohn Baldwin
2851fe4c660SJohn Baldwin# SMP Debugging Options:
2861fe4c660SJohn Baldwin#
2875b999a6bSDavide Italiano# CALLOUT_PROFILING enables rudimentary profiling of the callwheel data
2885b999a6bSDavide Italiano#	  structure used as backend in callout(9).
2895e21b51bSDavid E. O'Brien# PREEMPTION allows the threads that are in the kernel to be preempted by
2905e21b51bSDavid E. O'Brien#	  higher priority [interrupt] threads.  It helps with interactivity
2915e21b51bSDavid E. O'Brien#	  and allows interrupt threads to run sooner rather than waiting.
29267ab9fd7SJohn Baldwin#	  WARNING! Only tested on amd64 and i386.
2930c0b25aeSJohn Baldwin# FULL_PREEMPTION instructs the kernel to preempt non-realtime kernel
2948c5923d9SCeri Davies#	  threads.  Its sole use is to expose race conditions and other
2950c0b25aeSJohn Baldwin#	  bugs during development.  Enabling this option will reduce
2960c0b25aeSJohn Baldwin#	  performance and increase the frequency of kernel panics by
2970c0b25aeSJohn Baldwin#	  design.  If you aren't sure that you need it then you don't.
2989923b511SScott Long#	  Relies on the PREEMPTION option.  DON'T TURN THIS ON.
299ef0ebfc3SJohn Baldwin# SLEEPQUEUE_PROFILING enables rudimentary profiling of the hash table
30075a66a92SJeff Roberson#	  used to hold active sleep queues as well as sleep wait message
30175a66a92SJeff Roberson#	  frequency.
302ef0ebfc3SJohn Baldwin# TURNSTILE_PROFILING enables rudimentary profiling of the hash table
303ef0ebfc3SJohn Baldwin#	  used to hold active lock queues.
304c6111de5SDavide Italiano# UMTX_PROFILING enables rudimentary profiling of the hash table used
30527c8e6b8SGlen Barber#	  to hold active lock queues.
306aa4019efSRobert Watson# WITNESS enables the witness code which detects deadlocks and cycles
3071fe4c660SJohn Baldwin#         during locking operations.
308e2ee2173SMarcel Moolenaar# WITNESS_KDB causes the witness code to drop into the kernel debugger if
3093c7c6c12SMike Pritchard#	  a lock hierarchy violation occurs or if locks are held when going to
310660d1e3aSJohn Baldwin#	  sleep.
311660d1e3aSJohn Baldwin# WITNESS_SKIPSPIN disables the witness checks on spin mutexes.
3129923b511SScott Longoptions 	PREEMPTION
3130c0b25aeSJohn Baldwinoptions 	FULL_PREEMPTION
3141fe4c660SJohn Baldwinoptions 	WITNESS
315e2ee2173SMarcel Moolenaaroptions 	WITNESS_KDB
316660d1e3aSJohn Baldwinoptions 	WITNESS_SKIPSPIN
3171fe4c660SJohn Baldwin
318cf31ff26SRuslan Ermilov# LOCK_PROFILING - Profiling locks.  See LOCK_PROFILING(9) for details.
31907dba937SKip Macyoptions 	LOCK_PROFILING
32000096801SJohn-Mark Gurney# Set the number of buffers and the hash size.  The hash size MUST be larger
32100096801SJohn-Mark Gurney# than the number of buffers.  Hash size should be prime.
32200096801SJohn-Mark Gurneyoptions 	MPROF_BUFFERS="1536"
32300096801SJohn-Mark Gurneyoptions 	MPROF_HASH_SIZE="1543"
3244db0d7f1SDag-Erling Smørgrav
3255b999a6bSDavide Italiano# Profiling for the callout(9) backend.
3265b999a6bSDavide Italianooptions 	CALLOUT_PROFILING
3275b999a6bSDavide Italiano
328ef0ebfc3SJohn Baldwin# Profiling for internal hash tables.
329ef0ebfc3SJohn Baldwinoptions 	SLEEPQUEUE_PROFILING
330ef0ebfc3SJohn Baldwinoptions 	TURNSTILE_PROFILING
331c6111de5SDavide Italianooptions 	UMTX_PROFILING
332331805a5SDavide Italiano
333ef0ebfc3SJohn Baldwin
334477a642cSPeter Wemm#####################################################################
3356a8d6623SGarrett Wollman# COMPATIBILITY OPTIONS
336690f540cSAndrey A. Chernov
337d3e64681SPoul-Henning Kamp# Old tty interface.
338d3e64681SPoul-Henning Kampoptions 	COMPAT_43TTY
339d3e64681SPoul-Henning Kamp
340f5e4c105SJohn Baldwin# Note that as a general rule, COMPAT_FREEBSD<n> depends on
341f5e4c105SJohn Baldwin# COMPAT_FREEBSD<n+1>, COMPAT_FREEBSD<n+2>, etc.
342f5e4c105SJohn Baldwin
343f0eb293eSAlfred Perlstein# Enable FreeBSD4 compatibility syscalls
344f0eb293eSAlfred Perlsteinoptions 	COMPAT_FREEBSD4
345f0eb293eSAlfred Perlstein
346a01b4125SKen Smith# Enable FreeBSD5 compatibility syscalls
347a01b4125SKen Smithoptions 	COMPAT_FREEBSD5
348a01b4125SKen Smith
3496c9fdda7SRuslan Ermilov# Enable FreeBSD6 compatibility syscalls
3506c9fdda7SRuslan Ermilovoptions 	COMPAT_FREEBSD6
3516c9fdda7SRuslan Ermilov
3525965c4b7SJohn Baldwin# Enable FreeBSD7 compatibility syscalls
3535965c4b7SJohn Baldwinoptions 	COMPAT_FREEBSD7
3545965c4b7SJohn Baldwin
3557d313e7bSJohn Baldwin# Enable FreeBSD9 compatibility syscalls
3567d313e7bSJohn Baldwinoptions 	COMPAT_FREEBSD9
3577d313e7bSJohn Baldwin
3587d313e7bSJohn Baldwin# Enable FreeBSD10 compatibility syscalls
3597d313e7bSJohn Baldwinoptions 	COMPAT_FREEBSD10
3607d313e7bSJohn Baldwin
3617f68a896SMark Johnston# Enable FreeBSD11 compatibility syscalls
3627f68a896SMark Johnstonoptions 	COMPAT_FREEBSD11
3637f68a896SMark Johnston
364d6745408SConrad Meyer# Enable FreeBSD12 compatibility syscalls
365d6745408SConrad Meyeroptions 	COMPAT_FREEBSD12
366d6745408SConrad Meyer
3678d59ecb2SHans Petter Selasky# Enable Linux Kernel Programming Interface
3688d59ecb2SHans Petter Selaskyoptions 	COMPAT_LINUXKPI
3698d59ecb2SHans Petter Selasky
3706a8d6623SGarrett Wollman#
3716a8d6623SGarrett Wollman# These three options provide support for System V Interface
3726a8d6623SGarrett Wollman# Definition-style interprocess communication, in the form of shared
3736a8d6623SGarrett Wollman# memory, semaphores, and message queues, respectively.
3746a8d6623SGarrett Wollman#
3756a8d6623SGarrett Wollmanoptions 	SYSVSHM
3766a8d6623SGarrett Wollmanoptions 	SYSVSEM
3776a8d6623SGarrett Wollmanoptions 	SYSVMSG
3786a8d6623SGarrett Wollman
3796a8d6623SGarrett Wollman
3806a8d6623SGarrett Wollman#####################################################################
3816a8d6623SGarrett Wollman# DEBUGGING OPTIONS
3826a8d6623SGarrett Wollman
3836a8d6623SGarrett Wollman#
384e2ee2173SMarcel Moolenaar# Compile with kernel debugger related code.
3856a8d6623SGarrett Wollman#
386e2ee2173SMarcel Moolenaaroptions 	KDB
387b5d89ca8SBruce Evans
388b5d89ca8SBruce Evans#
389e2ee2173SMarcel Moolenaar# Print a stack trace of the current thread on the console for a panic.
3907085e708SBruce Evans#
391e2ee2173SMarcel Moolenaaroptions 	KDB_TRACE
392e2ee2173SMarcel Moolenaar
393e2ee2173SMarcel Moolenaar#
394e2ee2173SMarcel Moolenaar# Don't enter the debugger for a panic. Intended for unattended operation
395e2ee2173SMarcel Moolenaar# where you may want to enter the debugger from the console, but still want
396e2ee2173SMarcel Moolenaar# the machine to recover from a panic.
397e2ee2173SMarcel Moolenaar#
398e2ee2173SMarcel Moolenaaroptions 	KDB_UNATTENDED
399e2ee2173SMarcel Moolenaar
400e2ee2173SMarcel Moolenaar#
401e2ee2173SMarcel Moolenaar# Enable the ddb debugger backend.
402e2ee2173SMarcel Moolenaar#
403e2ee2173SMarcel Moolenaaroptions 	DDB
4047085e708SBruce Evans
4057085e708SBruce Evans#
406bfdd261eSBruce Evans# Print the numerical value of symbols in addition to the symbolic
407bfdd261eSBruce Evans# representation.
408bfdd261eSBruce Evans#
409bfdd261eSBruce Evansoptions 	DDB_NUMSYM
410bfdd261eSBruce Evans
411bfdd261eSBruce Evans#
412e2ee2173SMarcel Moolenaar# Enable the remote gdb debugger backend.
4130be15decSJohn Baldwin#
414e2ee2173SMarcel Moolenaaroptions 	GDB
415562d05dfSPaul Traina
416562d05dfSPaul Traina#
41737bd4ba9SConrad Meyer# Trashes list pointers when they become invalid (i.e., the element is
41837bd4ba9SConrad Meyer# removed from a list).  Relatively inexpensive to enable.
41937bd4ba9SConrad Meyer#
42037bd4ba9SConrad Meyeroptions 	QUEUE_MACRO_DEBUG_TRASH
42137bd4ba9SConrad Meyer
42237bd4ba9SConrad Meyer#
42337bd4ba9SConrad Meyer# Stores information about the last caller to modify the list object
42437bd4ba9SConrad Meyer# in the list object.  Requires additional memory overhead.
42537bd4ba9SConrad Meyer#
4263fcdcab0SConrad Meyer#options 	QUEUE_MACRO_DEBUG_TRACE
42737bd4ba9SConrad Meyer
42837bd4ba9SConrad Meyer#
429df970488SRobert Watson# SYSCTL_DEBUG enables a 'sysctl' debug tree that can be used to dump the
430df970488SRobert Watson# contents of the registered sysctl nodes on the console.  It is disabled by
4311c9c6382SRuslan Ermilov# default because it generates excessively verbose console output that can
432df970488SRobert Watson# interfere with serial console operation.
433df970488SRobert Watson#
434df970488SRobert Watsonoptions 	SYSCTL_DEBUG
435df970488SRobert Watson
436df970488SRobert Watson#
43721d748a9SAlfred Perlstein# Enable textdump by default, this disables kernel core dumps.
43821d748a9SAlfred Perlstein#
43921d748a9SAlfred Perlsteinoptions		TEXTDUMP_PREFERRED
44021d748a9SAlfred Perlstein
44121d748a9SAlfred Perlstein#
44221d748a9SAlfred Perlstein# Enable extra debug messages while performing textdumps.
44321d748a9SAlfred Perlstein#
44421d748a9SAlfred Perlsteinoptions		TEXTDUMP_VERBOSE
44521d748a9SAlfred Perlstein
44621d748a9SAlfred Perlstein#
44731615ef7SRebecca Cran# NO_SYSCTL_DESCR omits the sysctl node descriptions to save space in the
44831615ef7SRebecca Cran# resulting kernel.
44931615ef7SRebecca Cranoptions		NO_SYSCTL_DESCR
45031615ef7SRebecca Cran
45131615ef7SRebecca Cran#
452d7854da1SMatthew D Fleming# MALLOC_DEBUG_MAXZONES enables multiple uma zones for malloc(9)
453d7854da1SMatthew D Fleming# allocations that are smaller than a page.  The purpose is to isolate
454d7854da1SMatthew D Fleming# different malloc types into hash classes, so that any buffer
455d7854da1SMatthew D Fleming# overruns or use-after-free will usually only affect memory from
456d7854da1SMatthew D Fleming# malloc types in that hash class.  This is purely a debugging tool;
457d7854da1SMatthew D Fleming# by varying the hash function and tracking which hash class was
458d7854da1SMatthew D Fleming# corrupted, the intersection of the hash classes from each instance
459d7854da1SMatthew D Fleming# will point to a single malloc type that is being misused.  At this
460d7854da1SMatthew D Fleming# point inspection or memguard(9) can be used to catch the offending
461d7854da1SMatthew D Fleming# code.
462d7854da1SMatthew D Fleming#
463d7854da1SMatthew D Flemingoptions 	MALLOC_DEBUG_MAXZONES=8
464d7854da1SMatthew D Fleming
465d7854da1SMatthew D Fleming#
466e4eb384bSBosko Milekic# DEBUG_MEMGUARD builds and enables memguard(9), a replacement allocator
467e4eb384bSBosko Milekic# for the kernel used to detect modify-after-free scenarios.  See the
468e4eb384bSBosko Milekic# memguard(9) man page for more information on usage.
469e4eb384bSBosko Milekic#
470e4eb384bSBosko Milekicoptions 	DEBUG_MEMGUARD
471e4eb384bSBosko Milekic
472e4eb384bSBosko Milekic#
473847a2a17SPawel Jakub Dawidek# DEBUG_REDZONE enables buffer underflows and buffer overflows detection for
474847a2a17SPawel Jakub Dawidek# malloc(9).
475847a2a17SPawel Jakub Dawidek#
476847a2a17SPawel Jakub Dawidekoptions 	DEBUG_REDZONE
477847a2a17SPawel Jakub Dawidek
478847a2a17SPawel Jakub Dawidek#
479e79f350dSWarner Losh# EARLY_PRINTF enables support for calling a special printf (eprintf)
480e79f350dSWarner Losh# very early in the kernel (before cn_init() has been called).  This
481e79f350dSWarner Losh# should only be used for debugging purposes early in boot.  Normally,
482e79f350dSWarner Losh# it is not defined.  It is commented out here because this feature
483e79f350dSWarner Losh# isn't generally available. And the required eputc() isn't defined.
484e79f350dSWarner Losh#
485e79f350dSWarner Losh#options	EARLY_PRINTF
486e79f350dSWarner Losh
487e79f350dSWarner Losh#
488ea3fc8e4SJohn Baldwin# KTRACE enables the system-call tracing facility ktrace(2).  To be more
489ea3fc8e4SJohn Baldwin# SMP-friendly, KTRACE uses a worker thread to process most trace events
490ea3fc8e4SJohn Baldwin# asynchronously to the thread generating the event.  This requires a
491ea3fc8e4SJohn Baldwin# pre-allocated store of objects representing trace events.  The
492ea3fc8e4SJohn Baldwin# KTRACE_REQUEST_POOL option specifies the initial size of this store.
493ea3fc8e4SJohn Baldwin# The size of the pool can be adjusted both at boottime and runtime via
494ea3fc8e4SJohn Baldwin# the kern.ktrace_request_pool tunable and sysctl.
4956a8d6623SGarrett Wollman#
4962365e64fSRodney W. Grimesoptions 	KTRACE			#kernel tracing
497ea3fc8e4SJohn Baldwinoptions 	KTRACE_REQUEST_POOL=101
49821c64a07SAndrey A. Chernov
4996a8d6623SGarrett Wollman#
500f7e95633SRuslan Ermilov# KTR is a kernel tracing facility imported from BSD/OS.  It is
501a7bebf90SKris Kennaway# enabled with the KTR option.  KTR_ENTRIES defines the number of
5026e465ac7SDavide Italiano# entries in the circular trace buffer; it may be an arbitrary number.
50336b7dde4SAndriy Gapon# KTR_BOOT_ENTRIES defines the number of entries during the early boot,
50436b7dde4SAndriy Gapon# before malloc(9) is functional.
505a7bebf90SKris Kennaway# KTR_COMPILE defines the mask of events to compile into the kernel as
506a7bebf90SKris Kennaway# defined by the KTR_* constants in <sys/ktr.h>.  KTR_MASK defines the
507a7bebf90SKris Kennaway# initial value of the ktr_mask variable which determines at runtime
508a7bebf90SKris Kennaway# what events to trace.  KTR_CPUMASK determines which CPU's log
509e3709597SAttilio Rao# events, with bit X corresponding to CPU X.  The layout of the string
510d51e8487SJosh Paetzel# passed as KTR_CPUMASK must match a series of bitmasks each of them
511d4a2ab8cSAttilio Rao# separated by the "," character (ie:
512d4a2ab8cSAttilio Rao# KTR_CPUMASK=0xAF,0xFFFFFFFFFFFFFFFF).  KTR_VERBOSE enables
513a7bebf90SKris Kennaway# dumping of KTR events to the console by default.  This functionality
514a7bebf90SKris Kennaway# can be toggled via the debug.ktr_verbose sysctl and defaults to off
515f7e95633SRuslan Ermilov# if KTR_VERBOSE is not defined.  See ktr(4) and ktrdump(8) for details.
516c508c1b6SJohn Baldwin#
517c508c1b6SJohn Baldwinoptions 	KTR
51836b7dde4SAndriy Gaponoptions 	KTR_BOOT_ENTRIES=1024
51936b7dde4SAndriy Gaponoptions 	KTR_ENTRIES=(128*1024)
5206740ed37SGleb Smirnoffoptions 	KTR_COMPILE=(KTR_ALL)
521a9672a81SJohn Baldwinoptions 	KTR_MASK=KTR_INTR
522d4a2ab8cSAttilio Raooptions 	KTR_CPUMASK=0x3
523d902baa4SJohn Baldwinoptions 	KTR_VERBOSE
524c508c1b6SJohn Baldwin
525c508c1b6SJohn Baldwin#
5261c9c6382SRuslan Ermilov# ALQ(9) is a facility for the asynchronous queuing of records from the kernel
527f7e95633SRuslan Ermilov# to a vnode, and is employed by services such as ktr(4) to produce trace
528453ffeefSRobert Watson# files based on a kernel event stream.  Records are written asynchronously
529453ffeefSRobert Watson# in a worker thread.
530453ffeefSRobert Watson#
531453ffeefSRobert Watsonoptions 	ALQ
532453ffeefSRobert Watsonoptions 	KTR_ALQ
533453ffeefSRobert Watson
534453ffeefSRobert Watson#
5355526d2d9SEivind Eklund# The INVARIANTS option is used in a number of source files to enable
5366a8d6623SGarrett Wollman# extra sanity checking of internal structures.  This support is not
5376a8d6623SGarrett Wollman# enabled by default because of the extra time it would take to check
5386a8d6623SGarrett Wollman# for these conditions, which can only occur as a result of
5396a8d6623SGarrett Wollman# programming errors.
5406a8d6623SGarrett Wollman#
5415526d2d9SEivind Eklundoptions 	INVARIANTS
5425526d2d9SEivind Eklund
5435526d2d9SEivind Eklund#
54434b15f2aSJohn Baldwin# The INVARIANT_SUPPORT option makes us compile in support for
54534b15f2aSJohn Baldwin# verifying some of the internal structures.  It is a prerequisite for
54634b15f2aSJohn Baldwin# 'INVARIANTS', as enabling 'INVARIANTS' will make these functions be
54734b15f2aSJohn Baldwin# called.  The intent is that you can set 'INVARIANTS' for single
54834b15f2aSJohn Baldwin# source files (by changing the source file or specifying it on the
54934b15f2aSJohn Baldwin# command line) if you have 'INVARIANT_SUPPORT' enabled.  Also, if you
55034b15f2aSJohn Baldwin# wish to build a kernel module with 'INVARIANTS', then adding
55134b15f2aSJohn Baldwin# 'INVARIANT_SUPPORT' to your kernel will provide all the necessary
55234b15f2aSJohn Baldwin# infrastructure without the added overhead.
55334b15f2aSJohn Baldwin#
55434b15f2aSJohn Baldwinoptions 	INVARIANT_SUPPORT
55534b15f2aSJohn Baldwin
55634b15f2aSJohn Baldwin#
5574ca8c1efSConrad Meyer# The KASSERT_PANIC_OPTIONAL option allows kasserts to fire without
5584ca8c1efSConrad Meyer# necessarily inducing a panic.  Panic is the default behavior, but
5594ca8c1efSConrad Meyer# runtime options can configure it either entirely off, or off with a
5604ca8c1efSConrad Meyer# limit.
5614ca8c1efSConrad Meyer#
5624ca8c1efSConrad Meyeroptions 	KASSERT_PANIC_OPTIONAL
5634ca8c1efSConrad Meyer
5644ca8c1efSConrad Meyer#
5655526d2d9SEivind Eklund# The DIAGNOSTIC option is used to enable extra debugging information
56694851f37SMark Johnston# and invariants checking.  The added checks are too expensive or noisy
56794851f37SMark Johnston# for an INVARIANTS kernel and thus are disabled by default.  It is
56894851f37SMark Johnston# expected that a kernel configured with DIAGNOSTIC will also have the
56994851f37SMark Johnston# INVARIANTS option enabled.
5705526d2d9SEivind Eklund#
5710dc7d907SPoul-Henning Kampoptions 	DIAGNOSTIC
572da59a31cSDavid Greenman
5730dd1eea1SJordan K. Hubbard#
5740b5438c6SRobert Watson# REGRESSION causes optional kernel interfaces necessary only for regression
5753c7c6c12SMike Pritchard# testing to be enabled.  These interfaces may constitute security risks
5760b5438c6SRobert Watson# when enabled, as they permit processes to easily modify aspects of the
5770b5438c6SRobert Watson# run-time environment to reproduce unlikely or unusual (possibly normally
5780b5438c6SRobert Watson# impossible) scenarios.
5790b5438c6SRobert Watson#
5800b5438c6SRobert Watsonoptions 	REGRESSION
5810b5438c6SRobert Watson
5820b5438c6SRobert Watson#
5839c0ef6d5SOliver Fromme# This option lets some drivers co-exist that can't co-exist in a running
584346ebe51SEivind Eklund# system.  This is used to be able to compile all kernel code in one go for
585346ebe51SEivind Eklund# quality assurance purposes (like this file, which the option takes it name
586346ebe51SEivind Eklund# from.)
587346ebe51SEivind Eklund#
588346ebe51SEivind Eklundoptions 	COMPILING_LINT
589346ebe51SEivind Eklund
5903c90d1eaSRobert Watson#
5913c90d1eaSRobert Watson# STACK enables the stack(9) facility, allowing the capture of kernel stack
5923c90d1eaSRobert Watson# for the purpose of procinfo(1), etc.  stack(9) will also be compiled in
5933c90d1eaSRobert Watson# automatically if DDB(4) is compiled into the kernel.
5943c90d1eaSRobert Watson#
5953c90d1eaSRobert Watsonoptions 	STACK
5963c90d1eaSRobert Watson
597cc37baeaSStephen J. Kiernan#
598cc37baeaSStephen J. Kiernan# The NUM_CORE_FILES option specifies the limit for the number of core
599cc37baeaSStephen J. Kiernan# files generated by a particular process, when the core file format
600cc37baeaSStephen J. Kiernan# specifier includes the %I pattern. Since we only have 1 character for
601cc37baeaSStephen J. Kiernan# the core count in the format string, meaning the range will be 0-9, the
602cc37baeaSStephen J. Kiernan# maximum value allowed for this option is 10.
603cc37baeaSStephen J. Kiernan# This core file limit can be adjusted at runtime via the debug.ncores
604cc37baeaSStephen J. Kiernan# sysctl.
605cc37baeaSStephen J. Kiernan#
606cc37baeaSStephen J. Kiernanoptions 	NUM_CORE_FILES=5
607cc37baeaSStephen J. Kiernan
608ae3d6bfaSColin Percival#
609ae3d6bfaSColin Percival# The TSLOG option enables timestamped logging of events, especially
610ae3d6bfaSColin Percival# function entries/exits, in order to track the time spent by the kernel.
611ae3d6bfaSColin Percival# In particular, this is useful when investigating the early boot process,
612ae3d6bfaSColin Percival# before it is possible to use more sophisticated tools like DTrace.
613ae3d6bfaSColin Percival# The TSLOGSIZE option controls the size of the (preallocated, fixed
614ae3d6bfaSColin Percival# length) buffer used for storing these events (default: 262144 records).
615ae3d6bfaSColin Percival#
616ae3d6bfaSColin Percival# For security reasons the TSLOG option should not be enabled on systems
617ae3d6bfaSColin Percival# used in production.
618ae3d6bfaSColin Percival#
619ae3d6bfaSColin Percivaloptions 	TSLOG
620ae3d6bfaSColin Percivaloptions 	TSLOGSIZE=262144
621ae3d6bfaSColin Percival
6226a8d6623SGarrett Wollman
6236a8d6623SGarrett Wollman#####################################################################
624d47cce3eSMarcel Moolenaar# PERFORMANCE MONITORING OPTIONS
625d47cce3eSMarcel Moolenaar
626d47cce3eSMarcel Moolenaar#
627d47cce3eSMarcel Moolenaar# The hwpmc driver that allows the use of in-CPU performance monitoring
6289c0ef6d5SOliver Fromme# counters for performance monitoring.  The base kernel needs to be configured
629d47cce3eSMarcel Moolenaar# with the 'options' line, while the hwpmc device can be either compiled
630d47cce3eSMarcel Moolenaar# in or loaded as a loadable kernel module.
631d47cce3eSMarcel Moolenaar#
632ad3869b4SJoseph Koshy# Additional configuration options may be required on specific architectures,
633ad3869b4SJoseph Koshy# please see hwpmc(4).
634ad3869b4SJoseph Koshy
635d47cce3eSMarcel Moolenaardevice		hwpmc			# Driver (also a loadable module)
636680f1afdSJohn Baldwinoptions 	HWPMC_DEBUG
637d47cce3eSMarcel Moolenaaroptions 	HWPMC_HOOKS		# Other necessary kernel hooks
638d47cce3eSMarcel Moolenaar
639d47cce3eSMarcel Moolenaar
640d47cce3eSMarcel Moolenaar#####################################################################
6416a8d6623SGarrett Wollman# NETWORKING OPTIONS
64270c0b54cSAndrey A. Chernov
6436a8d6623SGarrett Wollman#
644a22fb0daSGeorge V. Neville-Neil# Protocol families
6456a8d6623SGarrett Wollman#
6466a8d6623SGarrett Wollmanoptions 	INET			#Internet communications protocols
64751f4c152SYoshinobu Inoueoptions 	INET6			#IPv6 communications protocols
648a22fb0daSGeorge V. Neville-Neil
649f3e7afe2SHans Petter Selaskyoptions		RATELIMIT		# TX rate limiting support
650f3e7afe2SHans Petter Selasky
6514871fc4aSJulian Elischeroptions 	ROUTETABLES=2		# allocated fibs up to 65536. default is 1.
6524871fc4aSJulian Elischer					# but that would be a bad idea as they are large.
6538b07e49aSJulian Elischer
65409fe6320SNavdeep Parharoptions 	TCP_OFFLOAD		# TCP offload support.
655cca72379SWarner Loshoptions		TCP_RFC7413		# TCP Fast Open
65609fe6320SNavdeep Parhar
65746033610SMatt Macyoptions		TCPHPTS
65846033610SMatt Macy
659a22fb0daSGeorge V. Neville-Neil# In order to enable IPSEC you MUST also add device crypto to
660a22fb0daSGeorge V. Neville-Neil# your kernel configuration
661a22fb0daSGeorge V. Neville-Neiloptions 	IPSEC			#IP security (requires device crypto)
662fcf59617SAndrey V. Elsukov
663fcf59617SAndrey V. Elsukov# Option IPSEC_SUPPORT does not enable IPsec, but makes it possible to
664fcf59617SAndrey V. Elsukov# load it as a kernel module. You still MUST add device crypto to your kernel
665fcf59617SAndrey V. Elsukov# configuration.
666fcf59617SAndrey V. Elsukovoptions		IPSEC_SUPPORT
6672cb64cb2SGeorge V. Neville-Neil#options 	IPSEC_DEBUG		#debug for IP security
668f73bbaf2SDavid Greenman
669b2e60773SJohn Baldwin
670b2e60773SJohn Baldwin# TLS framing and encryption of data transmitted over TCP sockets.
671b2e60773SJohn Baldwinoptions		KERN_TLS		# TLS transmit offload
672b2e60773SJohn Baldwin
673237abf0cSDavide Italiano#
674237abf0cSDavide Italiano# SMB/CIFS requester
675237abf0cSDavide Italiano# NETSMB enables support for SMB protocol, it requires LIBMCHAIN and LIBICONV
676237abf0cSDavide Italiano# options.
677237abf0cSDavide Italianooptions 	NETSMB			#SMB/CIFS requester
678237abf0cSDavide Italiano
679d8589bd5SBoris Popov# mchain library. It can be either loaded as KLD or compiled into kernel
680d8589bd5SBoris Popovoptions 	LIBMCHAIN
681d8589bd5SBoris Popov
6826cd047a0SGleb Smirnoff# libalias library, performing NAT
6836cd047a0SGleb Smirnoffoptions 	LIBALIAS
6846cd047a0SGleb Smirnoff
685f8829a4aSRandall Stewart#
686f8829a4aSRandall Stewart# SCTP is a NEW transport protocol defined by
687f8829a4aSRandall Stewart# RFC2960 updated by RFC3309 and RFC3758.. and
688f8829a4aSRandall Stewart# soon to have a new base RFC and many many more
689f8829a4aSRandall Stewart# extensions. This release supports all the extensions
690f8829a4aSRandall Stewart# including many drafts (most about to become RFC's).
6919c0ef6d5SOliver Fromme# It is the reference implementation of SCTP
692f8829a4aSRandall Stewart# and is quite well tested.
693f8829a4aSRandall Stewart#
694f8829a4aSRandall Stewart# Note YOU MUST have both INET and INET6 defined.
6959c0ef6d5SOliver Fromme# You don't have to enable V6, but SCTP is
6969c0ef6d5SOliver Fromme# dual stacked and so far we have not torn apart
697f8829a4aSRandall Stewart# the V6 and V4.. since an association can span
698f8829a4aSRandall Stewart# both a V6 and V4 address at the SAME time :-)
699f8829a4aSRandall Stewart#
700*95033af9SMark Johnston# The SCTP_SUPPORT option does not enable SCTP, but provides the necessary
701*95033af9SMark Johnston# support for loading SCTP as a loadable kernel module.
702*95033af9SMark Johnston#
703f8829a4aSRandall Stewartoptions 	SCTP
704*95033af9SMark Johnstonoptions 	SCTP_SUPPORT
705*95033af9SMark Johnston
706f8829a4aSRandall Stewart# There are bunches of options:
707f8829a4aSRandall Stewart# this one turns on all sorts of
708d51e8487SJosh Paetzel# nastily printing that you can
7099c0ef6d5SOliver Fromme# do. It's all controlled by a
710f8829a4aSRandall Stewart# bit mask (settable by socket opt and
711f8829a4aSRandall Stewart# by sysctl). Including will not cause
712f8829a4aSRandall Stewart# logging until you set the bits.. but it
713f8829a4aSRandall Stewart# can be quite verbose.. so without this
714f8829a4aSRandall Stewart# option we don't do any of the tests for
715f8829a4aSRandall Stewart# bits and prints.. which makes the code run
716f8829a4aSRandall Stewart# faster.. if you are not debugging don't use.
717f8829a4aSRandall Stewartoptions 	SCTP_DEBUG
718*95033af9SMark Johnston
719f8829a4aSRandall Stewart#
720f8829a4aSRandall Stewart# All that options after that turn on specific types of
721f8829a4aSRandall Stewart# logging. You can monitor CWND growth, flight size
722f8829a4aSRandall Stewart# and all sorts of things. Go look at the code and
723f8829a4aSRandall Stewart# see. I have used this to produce interesting
724f8829a4aSRandall Stewart# charts and graphs as well :->
725f8829a4aSRandall Stewart#
7269c0ef6d5SOliver Fromme# I have not yet committed the tools to get and print
727f8829a4aSRandall Stewart# the logs, I will do that eventually .. before then
728f8829a4aSRandall Stewart# if you want them send me an email rrs@freebsd.org
729f7e95633SRuslan Ermilov# You basically must have ktr(4) enabled for these
730cb7a4976SRandall Stewart# and you then set the sysctl to turn on/off various
731f7e95633SRuslan Ermilov# logging bits. Use ktrdump(8) to pull the log and run
7329c0ef6d5SOliver Fromme# it through a display program.. and graphs and other
733cb7a4976SRandall Stewart# things too.
734f8829a4aSRandall Stewart#
735f8829a4aSRandall Stewartoptions 	SCTP_LOCK_LOGGING
736f8829a4aSRandall Stewartoptions 	SCTP_MBUF_LOGGING
737cb7a4976SRandall Stewartoptions 	SCTP_MBCNT_LOGGING
738cb7a4976SRandall Stewartoptions 	SCTP_PACKET_LOGGING
739cb7a4976SRandall Stewartoptions 	SCTP_LTRACE_CHUNKS
740cb7a4976SRandall Stewartoptions 	SCTP_LTRACE_ERRORS
741cb7a4976SRandall Stewart
74202b199f1SMax Laier# altq(9). Enable the base part of the hooks with the ALTQ option.
74302b199f1SMax Laier# Individual disciplines must be built into the base system and can not be
744cceffdeeSAndrew Thompson# loaded as modules at this point. ALTQ requires a stable TSC so if yours is
745cceffdeeSAndrew Thompson# broken or changes with CPU throttling then you must also have the ALTQ_NOPCC
746cceffdeeSAndrew Thompson# option.
74702b199f1SMax Laieroptions 	ALTQ
748755911cdSGreg Leheyoptions 	ALTQ_CBQ	# Class Based Queueing
749c7219167SMax Laieroptions 	ALTQ_RED	# Random Early Detection
75002b199f1SMax Laieroptions 	ALTQ_RIO	# RED In/Out
751a13bfb09SLuiz Otavio O Souzaoptions 	ALTQ_CODEL	# CoDel Active Queueing
75202b199f1SMax Laieroptions 	ALTQ_HFSC	# Hierarchical Packet Scheduler
753a5b789f6SErmal Luçioptions 	ALTQ_FAIRQ	# Fair Packet Scheduler
75402b199f1SMax Laieroptions 	ALTQ_CDNR	# Traffic conditioner
7553c7c6c12SMike Pritchardoptions 	ALTQ_PRIQ	# Priority Queueing
756cceffdeeSAndrew Thompsonoptions 	ALTQ_NOPCC	# Required if the TSC is unusable
75702b199f1SMax Laieroptions 	ALTQ_DEBUG
75802b199f1SMax Laier
7594cf49a43SJulian Elischer# netgraph(4). Enable the base netgraph code with the NETGRAPH option.
7604cf49a43SJulian Elischer# Individual node types can be enabled with the corresponding option
7614cf49a43SJulian Elischer# listed below; however, this is not strictly necessary as netgraph
7624cf49a43SJulian Elischer# will automatically load the corresponding KLD module if the node type
76392a3e552SArchie Cobbs# is not already compiled into the kernel. Each type below has a
76492a3e552SArchie Cobbs# corresponding man page, e.g., ng_async(8).
7654cf49a43SJulian Elischeroptions 	NETGRAPH		# netgraph(4) system
76673e87266SGleb Smirnoffoptions 	NETGRAPH_DEBUG		# enable extra debugging, this
76773e87266SGleb Smirnoff					# affects netgraph(4) and nodes
76873e87266SGleb Smirnoff# Node types
7694cf49a43SJulian Elischeroptions 	NETGRAPH_ASYNC
770bde778e9SBenno Riceoptions 	NETGRAPH_ATMLLC
771b84b10f9SMaksim Yevmenkinoptions 	NETGRAPH_ATM_ATMPIF
772b84b10f9SMaksim Yevmenkinoptions 	NETGRAPH_BLUETOOTH		# ng_bluetooth(4)
773b84b10f9SMaksim Yevmenkinoptions 	NETGRAPH_BLUETOOTH_BT3C		# ng_bt3c(4)
774b84b10f9SMaksim Yevmenkinoptions 	NETGRAPH_BLUETOOTH_HCI		# ng_hci(4)
775b84b10f9SMaksim Yevmenkinoptions 	NETGRAPH_BLUETOOTH_L2CAP	# ng_l2cap(4)
776b84b10f9SMaksim Yevmenkinoptions 	NETGRAPH_BLUETOOTH_SOCKET	# ng_btsocket(4)
777b84b10f9SMaksim Yevmenkinoptions 	NETGRAPH_BLUETOOTH_UBT		# ng_ubt(4)
778b84b10f9SMaksim Yevmenkinoptions 	NETGRAPH_BLUETOOTH_UBTBCMFW	# ubtbcmfw(4)
77992a3e552SArchie Cobbsoptions 	NETGRAPH_BPF
780901fadf7SArchie Cobbsoptions 	NETGRAPH_BRIDGE
7817d3b4a08SAlexander Motinoptions 	NETGRAPH_CAR
782b9e0c8c2SMaxim Sobolevoptions 	NETGRAPH_CHECKSUM
7834cf49a43SJulian Elischeroptions 	NETGRAPH_CISCO
7849e6f1d3bSGleb Smirnoffoptions 	NETGRAPH_DEFLATE
78531578ac8SGleb Smirnoffoptions 	NETGRAPH_DEVICE
7864cf49a43SJulian Elischeroptions 	NETGRAPH_ECHO
7879d564133SRobert Watsonoptions 	NETGRAPH_EIFACE
78846aa8b9bSArchie Cobbsoptions 	NETGRAPH_ETHER
7894cf49a43SJulian Elischeroptions 	NETGRAPH_FRAME_RELAY
79037379158SBrooks Davisoptions 	NETGRAPH_GIF
79137379158SBrooks Davisoptions 	NETGRAPH_GIF_DEMUX
7924cf49a43SJulian Elischeroptions 	NETGRAPH_HOLE
7934cf49a43SJulian Elischeroptions 	NETGRAPH_IFACE
79437379158SBrooks Davisoptions 	NETGRAPH_IP_INPUT
795f2a7ef4eSGleb Smirnoffoptions 	NETGRAPH_IPFW
79648e94174SArchie Cobbsoptions 	NETGRAPH_KSOCKET
797901fadf7SArchie Cobbsoptions 	NETGRAPH_L2TP
7984cf49a43SJulian Elischeroptions 	NETGRAPH_LMI
799ec5753e0SPedro F. Giffunioptions 	NETGRAPH_MPPC_COMPRESSION
800a2b408adSArchie Cobbsoptions 	NETGRAPH_MPPC_ENCRYPTION
801cec50deaSGleb Smirnoffoptions 	NETGRAPH_NETFLOW
8026cd047a0SGleb Smirnoffoptions 	NETGRAPH_NAT
8037d7a5b89SArchie Cobbsoptions 	NETGRAPH_ONE2MANY
804d05181f9SAndrey V. Elsukovoptions 	NETGRAPH_PATCH
805991633afSMarko Zecoptions 	NETGRAPH_PIPE
806b0801bacSArchie Cobbsoptions 	NETGRAPH_PPP
807b0801bacSArchie Cobbsoptions 	NETGRAPH_PPPOE
808add85a1dSArchie Cobbsoptions 	NETGRAPH_PPTPGRE
8099e6f1d3bSGleb Smirnoffoptions 	NETGRAPH_PRED1
8104cf49a43SJulian Elischeroptions 	NETGRAPH_RFC1490
811b0801bacSArchie Cobbsoptions 	NETGRAPH_SOCKET
8124d60fee2SBrooks Davisoptions 	NETGRAPH_SPLIT
8130a6818e2SRoman Kurakinoptions 	NETGRAPH_SPPP
814d473c9d5SGleb Smirnoffoptions 	NETGRAPH_TAG
815e9110049SGleb Smirnoffoptions 	NETGRAPH_TCPMSS
8164cf49a43SJulian Elischeroptions 	NETGRAPH_TEE
8174cf49a43SJulian Elischeroptions 	NETGRAPH_UI
818b58a8a3bSJulian Elischeroptions 	NETGRAPH_VJC
819b4263060SRuslan Ermilovoptions 	NETGRAPH_VLAN
820666ea1b6SMaksim Yevmenkin
82102152e8fSHartmut Brandt# NgATM - Netgraph ATM
82202152e8fSHartmut Brandtoptions 	NGATM_ATM
823027ebd2fSHartmut Brandtoptions 	NGATM_ATMBASE
824027ebd2fSHartmut Brandtoptions 	NGATM_SSCOP
825027ebd2fSHartmut Brandtoptions 	NGATM_SSCFU
826ed91f9a5SHartmut Brandtoptions 	NGATM_UNI
827a7e22394SHartmut Brandtoptions 	NGATM_CCATM
82802152e8fSHartmut Brandt
829c9953c3bSPeter Wemmdevice		mn	# Munich32x/Falc54 Nx64kbit/sec cards.
8303cf4d0bfSPoul-Henning Kamp
8310990ef0aSKevin Lo# Network stack virtualization.
8328e94025bSBjoern A. Zeeboptions	VIMAGE
8338e94025bSBjoern A. Zeeboptions	VNET_DEBUG	# debug for VIMAGE
8340990ef0aSKevin Lo
8356a8d6623SGarrett Wollman#
8366a8d6623SGarrett Wollman# Network interfaces:
837f71c01ccSPeter Wemm#  The `loop' device is MANDATORY when networking is enabled.
83836782d14SWojciech A. Koszekdevice		loop
83936782d14SWojciech A. Koszek
840f71c01ccSPeter Wemm#  The `ether' device provides generic code to handle
8419d5abbddSJens Schweikhardt#  Ethernets; it is MANDATORY when an Ethernet device driver is
84269f0fecbSBrooks Davis#  configured.
84336782d14SWojciech A. Koszekdevice		ether
84436782d14SWojciech A. Koszek
845fc67901fSYaroslav Tykhiy#  The `vlan' device implements the VLAN tagging of Ethernet frames
8469d9ab10eSAntoine Brodin#  according to IEEE 802.1Q.
84736782d14SWojciech A. Koszekdevice		vlan
84836782d14SWojciech A. Koszek
849007054f0SBryan Venteicher# The `vxlan' device implements the VXLAN encapsulation of Ethernet
850007054f0SBryan Venteicher# frames in UDP packets according to RFC7348.
851007054f0SBryan Venteicherdevice		vxlan
852007054f0SBryan Venteicher
85357a42501SGarrett Wollman#  The `wlan' device provides generic code to support 802.11
85467e4db77SSam Leffler#  drivers, including host AP mode; it is MANDATORY for the wi,
855f4463607SSam Leffler#  and ath drivers and will eventually be required by all 802.11 drivers.
85636782d14SWojciech A. Koszekdevice		wlan
85736782d14SWojciech A. Koszekoptions 	IEEE80211_DEBUG		#enable debugging msgs
85859aa14a9SRui Paulooptions 	IEEE80211_SUPPORT_MESH	#enable 802.11s D3.0 support
85959aa14a9SRui Paulooptions 	IEEE80211_SUPPORT_TDMA	#enable TDMA support
86036782d14SWojciech A. Koszek
86167e4db77SSam Leffler#  The `wlan_wep', `wlan_tkip', and `wlan_ccmp' devices provide
86267e4db77SSam Leffler#  support for WEP, TKIP, and AES-CCMP crypto protocols optionally
86367e4db77SSam Leffler#  used with 802.11 devices that depend on the `wlan' module.
86436782d14SWojciech A. Koszekdevice		wlan_wep
86536782d14SWojciech A. Koszekdevice		wlan_ccmp
86636782d14SWojciech A. Koszekdevice		wlan_tkip
86736782d14SWojciech A. Koszek
86867e4db77SSam Leffler#  The `wlan_xauth' device provides support for external (i.e. user-mode)
86967e4db77SSam Leffler#  authenticators for use with 802.11 drivers that use the `wlan'
87034341a71SJohn Baldwin#  module and support 802.1x and/or WPA security protocols.
87136782d14SWojciech A. Koszekdevice		wlan_xauth
87236782d14SWojciech A. Koszek
87367e4db77SSam Leffler#  The `wlan_acl' device provides a MAC-based access control mechanism
87467e4db77SSam Leffler#  for use with 802.11 drivers operating in ap mode and using the
87567e4db77SSam Leffler#  `wlan' module.
87636782d14SWojciech A. Koszek#  The 'wlan_amrr' device provides AMRR transmit rate control algorithm
87736782d14SWojciech A. Koszekdevice		wlan_acl
87836782d14SWojciech A. Koszekdevice		wlan_amrr
87936782d14SWojciech A. Koszek
880f71c01ccSPeter Wemm#  The `sppp' device serves a similar role for certain types
881e7c234a1SPeter Wemm#  of synchronous PPP links (like `cx', `ar').
88236782d14SWojciech A. Koszekdevice		sppp
88336782d14SWojciech A. Koszek
884f71c01ccSPeter Wemm#  The `bpf' device enables the Berkeley Packet Filter.  Be
885d29895dcSGarrett Wollman#  aware of the legal and administrative consequences of enabling this
8869c0ef6d5SOliver Fromme#  option.  DHCP requires bpf.
88736782d14SWojciech A. Koszekdevice		bpf
88836782d14SWojciech A. Koszek
889e4b68814SLuigi Rizzo#  The `netmap' device implements memory-mapped access to network
890e4b68814SLuigi Rizzo#  devices from userspace, enabling wire-speed packet capture and
891e4b68814SLuigi Rizzo#  generation even at 10Gbit/s. Requires support in the device
892e4b68814SLuigi Rizzo#  driver. Supported drivers are ixgbe, e1000, re.
893e4b68814SLuigi Rizzodevice		netmap
894e4b68814SLuigi Rizzo
895f71c01ccSPeter Wemm#  The `disc' device implements a minimal network interface,
89659d8d13fSGarrett Wollman#  which throws away all packets sent and never receives any.  It is
89770e04181SYaroslav Tykhiy#  included for testing and benchmarking purposes.
89836782d14SWojciech A. Koszekdevice		disc
89936782d14SWojciech A. Koszek
900d0ea4743SBjoern A. Zeeb# The `epair' device implements a virtual back-to-back connected Ethernet
901d0ea4743SBjoern A. Zeeb# like interface pair.
902d0ea4743SBjoern A. Zeebdevice		epair
903d0ea4743SBjoern A. Zeeb
90463518eccSYaroslav Tykhiy#  The `edsc' device implements a minimal Ethernet interface,
90563518eccSYaroslav Tykhiy#  which discards all packets sent and receives none.
90636782d14SWojciech A. Koszekdevice		edsc
90736782d14SWojciech A. Koszek
908251a32b5SKyle Evans#  The `tuntap' device implements (user-)ppp, nos-tun(8) and a pty-like virtual
909251a32b5SKyle Evans#  Ethernet interface
910251a32b5SKyle Evansdevice		tuntap
91136782d14SWojciech A. Koszek
912f71c01ccSPeter Wemm#  The `gif' device implements IPv6 over IP4 tunneling,
913cfa1ca9dSYoshinobu Inoue#  IPv4 over IPv6 tunneling, IPv4 over IPv4 tunneling and
914cfa1ca9dSYoshinobu Inoue#  IPv6 over IPv6 tunneling.
915f325335cSAndrey V. Elsukov#  The `gre' device implements GRE (Generic Routing Encapsulation) tunneling,
916f325335cSAndrey V. Elsukov#  as specified in the RFC 2784 and RFC 2890.
917f325335cSAndrey V. Elsukov#  The `me' device implements Minimal Encapsulation within IPv4 as
918f325335cSAndrey V. Elsukov#  specified in the RFC 2004.
919f57fc21cSJeroen Ruigrok van der Werven#  The XBONEHACK option allows the same pair of addresses to be configured on
920f57fc21cSJeroen Ruigrok van der Werven#  multiple gif interfaces.
92136782d14SWojciech A. Koszekdevice		gif
92236782d14SWojciech A. Koszekdevice		gre
923f325335cSAndrey V. Elsukovdevice		me
92436782d14SWojciech A. Koszekoptions 	XBONEHACK
92536782d14SWojciech A. Koszek
926d5015639SMunechika SUMIKAWA#  The `stf' device implements 6to4 encapsulation.
92736782d14SWojciech A. Koszekdevice		stf
92836782d14SWojciech A. Koszek
9298d69c48bSMax Laier# The pf packet filter consists of three devices:
9308d69c48bSMax Laier#  The `pf' device provides /dev/pf and the firewall code itself.
9318d69c48bSMax Laier#  The `pflog' device provides the pflog0 interface which logs packets.
9328d69c48bSMax Laier#  The `pfsync' device provides the pfsync0 interface used for
9338d69c48bSMax Laier#   synchronization of firewall state tables (over the net).
93436782d14SWojciech A. Koszekdevice		pf
93536782d14SWojciech A. Koszekdevice		pflog
93636782d14SWojciech A. Koszekdevice		pfsync
93736782d14SWojciech A. Koszek
93836782d14SWojciech A. Koszek# Bridge interface.
93936782d14SWojciech A. Koszekdevice		if_bridge
94036782d14SWojciech A. Koszek
94136782d14SWojciech A. Koszek# Common Address Redundancy Protocol. See carp(4) for more details.
94236782d14SWojciech A. Koszekdevice		carp
94336782d14SWojciech A. Koszek
94436782d14SWojciech A. Koszek# IPsec interface.
94536782d14SWojciech A. Koszekdevice		enc
94636782d14SWojciech A. Koszek
94736782d14SWojciech A. Koszek# Link aggregation interface.
94836782d14SWojciech A. Koszekdevice		lagg
94936782d14SWojciech A. Koszek
9508d69c48bSMax Laier#
9516a8d6623SGarrett Wollman# Internet family options:
9526a8d6623SGarrett Wollman#
9536a8d6623SGarrett Wollman# MROUTING enables the kernel multicast packet forwarder, which works
9540948f0a2SBruce M Simpson# with mrouted and XORP.
955e0f688baSJeffrey Hsu#
956d29895dcSGarrett Wollman# IPFIREWALL enables support for IP firewall construction, in
957ff6f025aSAlexander Langer# conjunction with the `ipfw' program.  IPFIREWALL_VERBOSE sends
958ff6f025aSAlexander Langer# logged packets to the system logger.  IPFIREWALL_VERBOSE_LIMIT
959ff6f025aSAlexander Langer# limits the number of times a matching entry can be logged.
960ab6e02daSJordan K. Hubbard#
961ab6e02daSJordan K. Hubbard# WARNING:  IPFIREWALL defaults to a policy of "deny ip from any to any"
962ab6e02daSJordan K. Hubbard# and if you do not add other rules during startup to allow access,
963a236d14cSJordan K. Hubbard# YOU WILL LOCK YOURSELF OUT.  It is suggested that you set firewall_type=open
964ab6e02daSJordan K. Hubbard# in /etc/rc.conf when first enabling this feature, then refining the
965ab6e02daSJordan K. Hubbard# firewall rules in /etc/rc.firewall after you've tested that the new kernel
966ab6e02daSJordan K. Hubbard# feature works properly.
9678dd4744eSJordan K. Hubbard#
968ffdd472dSPeter Wemm# IPFIREWALL_DEFAULT_TO_ACCEPT causes the default rule (at boot) to
969ffdd472dSPeter Wemm# allow everything.  Use with care, if a cracker can crash your
970ffdd472dSPeter Wemm# firewall machine, they can get to your protected machines.  However,
971ffdd472dSPeter Wemm# if you are using it as an as-needed filter for specific problems as
972ffdd472dSPeter Wemm# they arise, then this may be for you.  Changing the default to 'allow'
973ffdd472dSPeter Wemm# means that you won't get stuck if the kernel and /sbin/ipfw binary get
974ffdd472dSPeter Wemm# out of sync.
975d29895dcSGarrett Wollman#
97684bb6a2eSAndre Oppermann# IPDIVERT enables the divert IP sockets, used by ``ipfw divert''.  It
97784bb6a2eSAndre Oppermann# depends on IPFIREWALL if compiled into the kernel.
97893e0e116SJulian Elischer#
97961c0e134SPaolo Pisati# IPFIREWALL_NAT adds support for in kernel nat in ipfw, and it requires
980531c890bSPaolo Pisati# LIBALIAS.
98161c0e134SPaolo Pisati#
982d8caf56eSAndrey V. Elsukov# IPFIREWALL_NAT64 adds support for in kernel NAT64 in ipfw.
983d8caf56eSAndrey V. Elsukov#
984b867e84eSAndrey V. Elsukov# IPFIREWALL_NPTV6 adds support for in kernel NPTv6 in ipfw.
985b867e84eSAndrey V. Elsukov#
986aac74aeaSAndrey V. Elsukov# IPFIREWALL_PMOD adds support for protocols modification module. Currently
987aac74aeaSAndrey V. Elsukov# it supports only TCP MSS modification.
988aac74aeaSAndrey V. Elsukov#
9891b968362SDag-Erling Smørgrav# IPSTEALTH enables code to support stealth forwarding (i.e., forwarding
9901c9c6382SRuslan Ermilov# packets without touching the TTL).  This can be useful to hide firewalls
9911b968362SDag-Erling Smørgrav# from traceroute and similar tools.
9921b968362SDag-Erling Smørgrav#
9937f7ef494SGleb Smirnoff# PF_DEFAULT_TO_DROP causes the default pf(4) rule to deny everything.
9947f7ef494SGleb Smirnoff#
9955e331acdSGarrett Wollman# TCPDEBUG enables code which keeps traces of the TCP state machine
9965e331acdSGarrett Wollman# for sockets with the SO_DEBUG option set, which can then be examined
9975e331acdSGarrett Wollman# using the trpt(8) utility.
99865e8111fSBruce Evans#
99986a996e6SHiren Panchasara# TCPPCAP enables code which keeps the last n packets sent and received
100086a996e6SHiren Panchasara# on a TCP socket.
100186a996e6SHiren Panchasara#
1002e24e5683SJonathan T. Looney# TCP_BLACKBOX enables enhanced TCP event logging.
1003e24e5683SJonathan T. Looney#
1004bd79708dSJonathan T. Looney# TCP_HHOOK enables the hhook(9) framework hooks for the TCP stack.
1005bd79708dSJonathan T. Looney#
100665e4e499SGleb Smirnoff# RADIX_MPATH provides support for equal-cost multi-path routing.
10079731596aSGleb Smirnoff#
1008e3178a06SJordan K. Hubbardoptions 	MROUTING		# Multicast routing
1009d29895dcSGarrett Wollmanoptions 	IPFIREWALL		#firewall
10104479e72cSCrist J. Clarkoptions 	IPFIREWALL_VERBOSE	#enable logging to syslogd(8)
10115895e3c8SPeter Wemmoptions 	IPFIREWALL_VERBOSE_LIMIT=100	#limit verbosity
1012e43a9900SAlexander Langeroptions 	IPFIREWALL_DEFAULT_TO_ACCEPT	#allow everything by default
101361c0e134SPaolo Pisatioptions 	IPFIREWALL_NAT		#ipfw kernel nat support
1014d8caf56eSAndrey V. Elsukovoptions 	IPFIREWALL_NAT64	#ipfw kernel NAT64 support
1015b867e84eSAndrey V. Elsukovoptions 	IPFIREWALL_NPTV6	#ipfw kernel IPv6 NPT support
101693e0e116SJulian Elischeroptions 	IPDIVERT		#divert sockets
10179cc86ee9SGuido van Rooijoptions 	IPFILTER		#ipfilter support
10189cc86ee9SGuido van Rooijoptions 	IPFILTER_LOG		#ipfilter logging
10190c3757dfSDarren Reedoptions 	IPFILTER_LOOKUP		#ipfilter pools
10208259bcdfSJeroen Ruigrok van der Wervenoptions 	IPFILTER_DEFAULT_BLOCK	#block all packets by default
10211b968362SDag-Erling Smørgravoptions 	IPSTEALTH		#support for stealth forwarding
10227f7ef494SGleb Smirnoffoptions 	PF_DEFAULT_TO_DROP	#drop everything by default
102365e8111fSBruce Evansoptions 	TCPDEBUG
102486a996e6SHiren Panchasaraoptions 	TCPPCAP
1025e24e5683SJonathan T. Looneyoptions 	TCP_BLACKBOX
1026bd79708dSJonathan T. Looneyoptions 	TCP_HHOOK
10279731596aSGleb Smirnoffoptions 	RADIX_MPATH
10286a8d6623SGarrett Wollman
102953dcc544SMike Silbersack# The MBUF_STRESS_TEST option enables options which create
103053dcc544SMike Silbersack# various random failures / extreme cases related to mbuf
1031f8f8803bSBruce Evans# functions.  See mbuf(9) for a list of available test cases.
10324e77d255SJulian Elischer# MBUF_PROFILING enables code to profile the mbuf chains
10336eeac1d9SJulian Elischer# exiting the system (via participating interfaces) and
10346eeac1d9SJulian Elischer# return a logarithmic histogram of monitored parameters
10356eeac1d9SJulian Elischer# (e.g. packet size, wasted space, number of mbufs in chain).
103653dcc544SMike Silbersackoptions 	MBUF_STRESS_TEST
10376eeac1d9SJulian Elischeroptions 	MBUF_PROFILING
10384a5ccac7SMike Silbersack
10399c0ef6d5SOliver Fromme# Statically link in accept filters
1040a79b7128SAlfred Perlsteinoptions 	ACCEPT_FILTER_DATA
1041744eaff7SDavid Maloneoptions 	ACCEPT_FILTER_DNS
1042a79b7128SAlfred Perlsteinoptions 	ACCEPT_FILTER_HTTP
1043a79b7128SAlfred Perlstein
1044b52f8407SBruce M Simpson# TCP_SIGNATURE adds support for RFC 2385 (TCP-MD5) digests. These are
1045b52f8407SBruce M Simpson# carried in TCP option 19. This option is commonly used to protect
1046b52f8407SBruce M Simpson# TCP sessions (e.g. BGP) where IPSEC is not available nor desirable.
1047b52f8407SBruce M Simpson# This is enabled on a per-socket basis using the TCP_MD5SIG socket option.
1048fcf59617SAndrey V. Elsukov# This requires the use of 'device crypto' and either 'options IPSEC' or
1049fcf59617SAndrey V. Elsukov# 'options IPSEC_SUPPORT'.
10505164136dSBjoern A. Zeeboptions 	TCP_SIGNATURE		#include support for RFC 2385
1051b52f8407SBruce M Simpson
1052f8f8803bSBruce Evans# DUMMYNET enables the "dummynet" bandwidth limiter.  You need IPFIREWALL
1053f8f8803bSBruce Evans# as well.  See dummynet(4) and ipfw(8) for more info.  When you run
1054358f8d82SRobert Watson# DUMMYNET it is advisable to also have at least "options HZ=1000" to achieve
1055358f8d82SRobert Watson# a smooth scheduling of the traffic.
105668ec4eb6SLuigi Rizzooptions 	DUMMYNET
105768e9d934SLuigi Rizzo
1058dda17b36SConrad Meyer# The DEBUGNET option enables a basic debug/panic-time networking API.  It
1059dda17b36SConrad Meyer# is used by NETDUMP and NETGDB.
1060dda17b36SConrad Meyeroptions 	DEBUGNET
1061dda17b36SConrad Meyer
1062e5054602SMark Johnston# The NETDUMP option enables netdump(4) client support in the kernel.
1063e5054602SMark Johnston# This allows a panicking kernel to transmit a kernel dump to a remote host.
1064e5054602SMark Johnstonoptions 	NETDUMP
1065e5054602SMark Johnston
1066dda17b36SConrad Meyer# The NETGDB option enables netgdb(4) support in the kernel.  This allows a
1067dda17b36SConrad Meyer# panicking kernel to be debugged as a GDB remote over the network.
1068dda17b36SConrad Meyeroptions 	NETGDB
10697790c8c1SConrad Meyer
10706a8d6623SGarrett Wollman#####################################################################
10716a8d6623SGarrett Wollman# FILESYSTEM OPTIONS
1072e3178a06SJordan K. Hubbard
10732365e64fSRodney W. Grimes#
10743f850e6aSKonstantin Belousov# Only the root filesystem needs to be statically compiled or preloaded
10753f850e6aSKonstantin Belousov# as module; everything else will be automatically loaded at mount
10763f850e6aSKonstantin Belousov# time.  Some people still prefer to statically compile other
10773f850e6aSKonstantin Belousov# filesystems as well.
10786a8d6623SGarrett Wollman#
107955793cdcSAttilio Rao# NB: The UNION filesystem was known to be buggy in the past.  It is now
1080534046e3SRong-En Fan# being actively maintained, although there are still some issues being
1081534046e3SRong-En Fan# resolved.
10822365e64fSRodney W. Grimes#
1083f1a9c715SDavid Greenman
10846a8d6623SGarrett Wollman# One of these is mandatory:
10856a8d6623SGarrett Wollmanoptions 	FFS			#Fast filesystem
1086c15882f0SRick Macklemoptions 	NFSCL			#Network File System client
10876a8d6623SGarrett Wollman
10886a8d6623SGarrett Wollman# The rest are optional:
10893914ddf8SEdward Tomasz Napieralaoptions 	AUTOFS			#Automounter filesystem
10905895e3c8SPeter Wemmoptions 	CD9660			#ISO 9660 filesystem
109199d300a1SRuslan Ermilovoptions 	FDESCFS			#File descriptor filesystem
1092123af6ecSAlan Somersoptions 	FUSEFS			#FUSEFS support module
1093dba11ce5SAlexander Langeroptions 	MSDOSFS			#MS DOS File System (FAT, FAT32)
1094dfdcada3SDoug Rabsonoptions 	NFSLOCKD		#Network Lock Manager
10953e32dff5SJohn Baldwinoptions 	NFSD			#Network Filesystem Server
10969c0ef6d5SOliver Frommeoptions 	KGSSAPI			#Kernel GSSAPI implementation
10971bea7c61SMaxim Sobolev
1098f1a9c715SDavid Greenmanoptions 	NULLFS			#NULL filesystem
10994d2647f9SDag-Erling Smørgravoptions 	PROCFS			#Process filesystem (requires PSEUDOFS)
110052ebde4fSDag-Erling Smørgravoptions 	PSEUDOFS		#Pseudo-filesystem framework
1101bcc1205cSDag-Erling Smørgravoptions 	PSEUDOFS_TRACE		#Debugging support for PSEUDOFS
1102237abf0cSDavide Italianooptions 	SMBFS			#SMB/CIFS filesystem
110378920d0fSKevin Looptions 	TMPFS			#Efficient memory filesystem
1104df263cbdSScott Longoptions 	UDF			#Universal Disk Format
110599d300a1SRuslan Ermilovoptions 	UNIONFS			#Union filesystem
1106bcf77694SPeter Wemm# The xFS_ROOT options REQUIRE the associated ``options xFS''
1107bcf77694SPeter Wemmoptions 	NFS_ROOT		#NFS usable as root device
1108f1a9c715SDavid Greenman
1109d0a28bafSAlexander Langer# Soft updates is a technique for improving filesystem speed and
1110d61e6649SAlexander Langer# making abrupt shutdown less risky.
1111f8f8d7afSEivind Eklund#
11123d5c4fdcSPoul-Henning Kampoptions 	SOFTUPDATES
1113b1897c19SJulian Elischer
1114a64ed089SRobert Watson# Extended attributes allow additional data to be associated with files,
111551be6918SChris D. Faulhaber# and is used for ACLs, Capabilities, and MAC labels.
111651be6918SChris D. Faulhaber# See src/sys/ufs/ufs/README.extattr for more information.
111749993db0SRobert Watsonoptions 	UFS_EXTATTR
111849993db0SRobert Watsonoptions 	UFS_EXTATTR_AUTOSTART
1119a64ed089SRobert Watson
112051be6918SChris D. Faulhaber# Access Control List support for UFS filesystems.  The current ACL
112151be6918SChris D. Faulhaber# implementation requires extended attribute support, UFS_EXTATTR,
112251be6918SChris D. Faulhaber# for the underlying filesystem.
112351be6918SChris D. Faulhaber# See src/sys/ufs/ufs/README.acls for more information.
112451be6918SChris D. Faulhaberoptions 	UFS_ACL
112551be6918SChris D. Faulhaber
11269b5ad47fSIan Dowse# Directory hashing improves the speed of operations on very large
11279b5ad47fSIan Dowse# directories at the expense of some memory.
11289b5ad47fSIan Dowseoptions 	UFS_DIRHASH
11299b5ad47fSIan Dowse
1130f348204cSPawel Jakub Dawidek# Gjournal-based UFS journaling support.
1131f348204cSPawel Jakub Dawidekoptions 	UFS_GJOURNAL
1132f348204cSPawel Jakub Dawidek
113371e4fff8SPoul-Henning Kamp# Make space in the kernel for a root filesystem on a md device.
113471e4fff8SPoul-Henning Kamp# Define to the number of kilobytes to reserve for the filesystem.
1135f4c1f0b9SAdrian Chadd# This is now optional.
1136f4c1f0b9SAdrian Chadd# If not defined, the root filesystem passed in as the MFS_IMAGE makeoption
1137f4c1f0b9SAdrian Chadd# will be automatically embedded in the kernel during linking. Its exact size
1138f4c1f0b9SAdrian Chadd# will be consumed within the kernel.
1139f4c1f0b9SAdrian Chadd# If defined, the old way of embedding the filesystem in the kernel will be
1140f4c1f0b9SAdrian Chadd# used. That is to say MD_ROOT_SIZE KB will be allocated in the kernel and
1141f4c1f0b9SAdrian Chadd# later, the filesystem image passed in as the MFS_IMAGE makeoption will be
1142f4c1f0b9SAdrian Chadd# dd'd into the reserved space if it fits.
114371e4fff8SPoul-Henning Kampoptions 	MD_ROOT_SIZE=10
114471e4fff8SPoul-Henning Kamp
114571e4fff8SPoul-Henning Kamp# Make the md device a potential root device, either with preloaded
114671e4fff8SPoul-Henning Kamp# images of type mfs_root or md_root.
114771e4fff8SPoul-Henning Kampoptions 	MD_ROOT
1148d52d7365SPoul-Henning Kamp
11495cf10fb9SIan Lepore# Write-protect the md root device so that it may not be mounted writeable.
11505cf10fb9SIan Leporeoptions 	MD_ROOT_READONLY
11515cf10fb9SIan Lepore
11527b2c7b92SBreno Leitao# Allow to read MD image from external memory regions
11537b2c7b92SBreno Leitaooptions		MD_ROOT_MEM
11547b2c7b92SBreno Leitao
1155495967e4SEivind Eklund# Disk quotas are supported when this option is enabled.
11562365e64fSRodney W. Grimesoptions 	QUOTA			#enable disk quotas
11576a8d6623SGarrett Wollman
1158276756a4SDag-Erling Smørgrav# If you are running a machine just as a fileserver for PC and MAC
115945c203fcSGleb Smirnoff# users, using SAMBA, you may consider setting this option
1160276756a4SDag-Erling Smørgrav# and keeping all those users' directories on a filesystem that is
1161276756a4SDag-Erling Smørgrav# mounted with the suiddir option. This gives new files the same
1162ec4e5afbSRobert Nordier# ownership as the directory (similar to group). It's a security hole
11636110161fSDag-Erling Smørgrav# if you let these users run programs, so confine it to file-servers
1164276756a4SDag-Erling Smørgrav# (but it'll save you lots of headaches in those cases). Root owned
1165276756a4SDag-Erling Smørgrav# directories are exempt and X bits are cleared. The suid bit must be
11669c0ef6d5SOliver Fromme# set on the directory as well; see chmod(1). PC owners can't see/set
1167276756a4SDag-Erling Smørgrav# ownerships so they keep getting their toes trodden on. This saves
1168276756a4SDag-Erling Smørgrav# you all the support calls as the filesystem it's used on will act as
1169276756a4SDag-Erling Smørgrav# they expect: "It's my dir so it must be my file".
1170cb800e34SJulian Elischer#
1171cb800e34SJulian Elischeroptions 	SUIDDIR
1172cb800e34SJulian Elischer
1173df394affSJohn-Mark Gurney# NFS options:
11745895e3c8SPeter Wemmoptions 	NFS_MINATTRTIMO=3	# VREG attrib cache timeout in sec
11755895e3c8SPeter Wemmoptions 	NFS_MAXATTRTIMO=60
11765895e3c8SPeter Wemmoptions 	NFS_MINDIRATTRTIMO=30	# VDIR attrib cache timeout in sec
11775895e3c8SPeter Wemmoptions 	NFS_MAXDIRATTRTIMO=60
1178df394affSJohn-Mark Gurneyoptions 	NFS_DEBUG		# Enable NFS Debugging
1179df394affSJohn-Mark Gurney
1180053a2b61SEivind Eklund#
1181053a2b61SEivind Eklund# Add support for the EXT2FS filesystem of Linux fame.  Be a bit
1182053a2b61SEivind Eklund# careful with this - the ext2fs code has a tendency to lag behind
1183053a2b61SEivind Eklund# changes and not be exercised very much, so mounting read/write could
1184053a2b61SEivind Eklund# be dangerous (and even mounting read only could result in panics.)
1185053a2b61SEivind Eklund#
11865895e3c8SPeter Wemmoptions 	EXT2FS
1187053a2b61SEivind Eklund
11888ab2f5ecSMark Murray# The system memory devices; /dev/mem, /dev/kmem
1189e83e229dSWarner Loshdevice		mem
11908ab2f5ecSMark Murray
119100a5db46SStacey Son# The kernel symbol table device; /dev/ksyms
119200a5db46SStacey Sondevice		ksyms
119300a5db46SStacey Son
1194c4f02a89SMax Khon# Optional character code conversion support with LIBICONV.
1195c4f02a89SMax Khon# Each option requires their base file system and LIBICONV.
1196c4f02a89SMax Khonoptions 	CD9660_ICONV
1197c4f02a89SMax Khonoptions 	MSDOSFS_ICONV
1198126f0dfaSScott Longoptions 	UDF_ICONV
1199c4f02a89SMax Khon
12006a8d6623SGarrett Wollman
12016a8d6623SGarrett Wollman#####################################################################
1202abc97a06SBruce Evans# POSIX P1003.1B
1203abc97a06SBruce Evans
12041c9c6382SRuslan Ermilov# Real time extensions added in the 1993 POSIX
1205abc97a06SBruce Evans# _KPOSIX_PRIORITY_SCHEDULING: Build in _POSIX_PRIORITY_SCHEDULING
1206abc97a06SBruce Evans
12075895e3c8SPeter Wemmoptions 	_KPOSIX_PRIORITY_SCHEDULING
12088cbf4973SAlfred Perlstein# p1003_1b_semaphores are very experimental,
12098cbf4973SAlfred Perlstein# user should be ready to assist in debugging if problems arise.
12103ffb9fadSAlfred Perlsteinoptions 	P1003_1B_SEMAPHORES
1211abc97a06SBruce Evans
12125b40ce27SDavid Xu# POSIX message queue
12135b40ce27SDavid Xuoptions 	P1003_1B_MQUEUE
1214abc97a06SBruce Evans
1215abc97a06SBruce Evans#####################################################################
121612e9f256SRobert Watson# SECURITY POLICY PARAMETERS
121712e9f256SRobert Watson
1218fdcba197SRobert Watson# Support for BSM audit
1219fdcba197SRobert Watsonoptions 	AUDIT
1220fdcba197SRobert Watson
1221cd6d1d76SBruce Evans# Support for Mandatory Access Control (MAC):
1222cd6d1d76SBruce Evansoptions 	MAC
1223eae2f20cSRobert Watsonoptions 	MAC_BIBA
1224eae2f20cSRobert Watsonoptions 	MAC_BSDEXTENDED
1225eae2f20cSRobert Watsonoptions 	MAC_IFOFF
1226c4725737SRobert Watsonoptions 	MAC_LOMAC
1227eae2f20cSRobert Watsonoptions 	MAC_MLS
1228eae2f20cSRobert Watsonoptions 	MAC_NONE
12293496c981SIan Leporeoptions 	MAC_NTPD
1230eae2f20cSRobert Watsonoptions 	MAC_PARTITION
123103d03162SRobert Watsonoptions 	MAC_PORTACL
1232eae2f20cSRobert Watsonoptions 	MAC_SEEOTHERUIDS
1233782f7255SRobert Watsonoptions 	MAC_STUB
1234eae2f20cSRobert Watsonoptions 	MAC_TEST
123512e9f256SRobert Watson
123696fcc75fSRobert Watson# Support for Capsicum
123755d4d6f4SJonathan Andersonoptions 	CAPABILITIES	# fine-grained rights on file descriptors
123855d4d6f4SJonathan Andersonoptions 	CAPABILITY_MODE	# sandboxes with no global namespace access
123996fcc75fSRobert Watson
124012e9f256SRobert Watson
124112e9f256SRobert Watson#####################################################################
1242000033d0SJeroen Ruigrok van der Werven# CLOCK OPTIONS
1243000033d0SJeroen Ruigrok van der Werven
1244000033d0SJeroen Ruigrok van der Werven# The granularity of operation is controlled by the kernel option HZ whose
1245358f8d82SRobert Watson# default value (1000 on most architectures) means a granularity of 1ms
1246358f8d82SRobert Watson# (1s/HZ).  Historically, the default was 100, but finer granularity is
1247358f8d82SRobert Watson# required for DUMMYNET and other systems on modern hardware.  There are
1248358f8d82SRobert Watson# reasonable arguments that HZ should, in fact, be 100 still; consider,
1249358f8d82SRobert Watson# that reducing the granularity too much might cause excessive overhead in
1250358f8d82SRobert Watson# clock interrupt processing, potentially causing ticks to be missed and thus
1251358f8d82SRobert Watson# actually reducing the accuracy of operation.
1252000033d0SJeroen Ruigrok van der Werven
1253000033d0SJeroen Ruigrok van der Wervenoptions 	HZ=100
1254000033d0SJeroen Ruigrok van der Werven
1255f309f881SJohn Baldwin# Enable support for the kernel PLL to use an external PPS signal,
1256f309f881SJohn Baldwin# under supervision of [x]ntpd(8)
1257f309f881SJohn Baldwin# More info in ntpd documentation: http://www.eecis.udel.edu/~ntp
1258f309f881SJohn Baldwin
1259f309f881SJohn Baldwinoptions 	PPS_SYNC
1260f309f881SJohn Baldwin
1261b0fdc837SLawrence Stewart# Enable support for generic feed-forward clocks in the kernel.
1262b0fdc837SLawrence Stewart# The feed-forward clock support is an alternative to the feedback oriented
1263b0fdc837SLawrence Stewart# ntpd/system clock approach, and is to be used with a feed-forward
1264b0fdc837SLawrence Stewart# synchronization algorithm such as the RADclock:
1265b0fdc837SLawrence Stewart# More info here: http://www.synclab.org/radclock
1266b0fdc837SLawrence Stewart
1267b0fdc837SLawrence Stewartoptions 	FFCLOCK
1268b0fdc837SLawrence Stewart
1269000033d0SJeroen Ruigrok van der Werven
1270000033d0SJeroen Ruigrok van der Werven#####################################################################
1271de6a307eSPeter Dufault# SCSI DEVICES
1272de6a307eSPeter Dufault
12736a8d6623SGarrett Wollman# SCSI DEVICE CONFIGURATION
12746a8d6623SGarrett Wollman
12756a8d6623SGarrett Wollman# The SCSI subsystem consists of the `base' SCSI code, a number of
1276ebc1a0e2SPeter Dufault# high-level SCSI device `type' drivers, and the low-level host-adapter
12776a8d6623SGarrett Wollman# device drivers.  The host adapters are listed in the ISA and PCI
12786a8d6623SGarrett Wollman# device configuration sections below.
12796a8d6623SGarrett Wollman#
1280e14eb5a1SGarrett Wollman# It is possible to wire down your SCSI devices so that a given bus,
1281e14eb5a1SGarrett Wollman# target, and LUN always come on line as the same device unit.  In
1282e14eb5a1SGarrett Wollman# earlier versions the unit numbers were assigned in the order that
1283e14eb5a1SGarrett Wollman# the devices were probed on the SCSI bus.  This means that if you
1284e14eb5a1SGarrett Wollman# removed a disk drive, you may have had to rewrite your /etc/fstab
1285e14eb5a1SGarrett Wollman# file, and also that you had to be careful when adding a new disk
1286e14eb5a1SGarrett Wollman# as it may have been probed earlier and moved your device configuration
1287ac8e5d02SConrad Meyer# around.
1288ebc1a0e2SPeter Dufault
1289ebc1a0e2SPeter Dufault# This old behavior is maintained as the default behavior.  The unit
1290ebc1a0e2SPeter Dufault# assignment begins with the first non-wired down unit for a device
1291700daf5eSJustin T. Gibbs# type.  For example, if you wire a disk as "da3" then the first
1292700daf5eSJustin T. Gibbs# non-wired disk will be assigned da4.
1293ebc1a0e2SPeter Dufault
1294ebc1a0e2SPeter Dufault# The syntax for wiring down devices is:
1295ebc1a0e2SPeter Dufault
1296f71c01ccSPeter Wemmhint.scbus.0.at="ahc0"
1297f71c01ccSPeter Wemmhint.scbus.1.at="ahc1"
1298f71c01ccSPeter Wemmhint.scbus.1.bus="0"
1299f71c01ccSPeter Wemmhint.scbus.3.at="ahc2"
1300f71c01ccSPeter Wemmhint.scbus.3.bus="0"
1301f71c01ccSPeter Wemmhint.scbus.2.at="ahc2"
1302f71c01ccSPeter Wemmhint.scbus.2.bus="1"
1303f71c01ccSPeter Wemmhint.da.0.at="scbus0"
1304f71c01ccSPeter Wemmhint.da.0.target="0"
1305f71c01ccSPeter Wemmhint.da.0.unit="0"
1306f71c01ccSPeter Wemmhint.da.1.at="scbus3"
1307f71c01ccSPeter Wemmhint.da.1.target="1"
1308f71c01ccSPeter Wemmhint.da.2.at="scbus2"
1309f71c01ccSPeter Wemmhint.da.2.target="3"
1310f71c01ccSPeter Wemmhint.sa.1.at="scbus1"
1311f71c01ccSPeter Wemmhint.sa.1.target="6"
1312ebc1a0e2SPeter Dufault
1313ebc1a0e2SPeter Dufault# "units" (SCSI logical unit number) that are not specified are
1314ebc1a0e2SPeter Dufault# treated as if specified as LUN 0.
1315ebc1a0e2SPeter Dufault
1316ebc1a0e2SPeter Dufault# All SCSI devices allocate as many units as are required.
1317ebc1a0e2SPeter Dufault
1318cf2458c9SMatt Jacob# The ch driver drives SCSI Media Changer ("jukebox") devices.
1319cf2458c9SMatt Jacob#
1320cf2458c9SMatt Jacob# The da driver drives SCSI Direct Access ("disk") and Optical Media
1321cf2458c9SMatt Jacob# ("WORM") devices.
1322cf2458c9SMatt Jacob#
1323cf2458c9SMatt Jacob# The sa driver drives SCSI Sequential Access ("tape") devices.
1324cf2458c9SMatt Jacob#
1325cf2458c9SMatt Jacob# The cd driver drives SCSI Read Only Direct Access ("cd") devices.
1326cf2458c9SMatt Jacob#
13273c7c6c12SMike Pritchard# The ses driver drives SCSI Environment Services ("ses") and
13283c7c6c12SMike Pritchard# SAF-TE ("SCSI Accessible Fault-Tolerant Enclosure") devices.
1329cf2458c9SMatt Jacob#
1330cf2458c9SMatt Jacob# The pt driver drives SCSI Processor devices.
1331cf2458c9SMatt Jacob#
13321eba4c79SScott Long# The sg driver provides a passthrough API that is compatible with the
13331eba4c79SScott Long# Linux SG driver.  It will work in conjunction with the COMPAT_LINUX
13341eba4c79SScott Long# option to run linux SG apps.  It can also stand on its own and provide
1335d51e8487SJosh Paetzel# source level API compatibility for porting apps to FreeBSD.
1336cf2458c9SMatt Jacob#
1337cf2458c9SMatt Jacob# Target Mode support is provided here but also requires that a SIM
1338cf2458c9SMatt Jacob# (SCSI Host Adapter Driver) provide support as well.
1339cf2458c9SMatt Jacob#
1340cf2458c9SMatt Jacob# The targ driver provides target mode support as a Processor type device.
1341cf2458c9SMatt Jacob# It exists to give the minimal context necessary to respond to Inquiry
1342cf2458c9SMatt Jacob# commands. There is a sample user application that shows how the rest
1343cf2458c9SMatt Jacob# of the command support might be done in /usr/share/examples/scsi_target.
1344cf2458c9SMatt Jacob#
1345cf2458c9SMatt Jacob# The targbh driver provides target mode support and exists to respond
1346cf2458c9SMatt Jacob# to incoming commands that do not otherwise have a logical unit assigned
1347cf2458c9SMatt Jacob# to them.
1348cf2458c9SMatt Jacob#
1349b2420d4dSSergey Kandaurov# The pass driver provides a passthrough API to access the CAM subsystem.
1350ebc1a0e2SPeter Dufault
1351c9953c3bSPeter Wemmdevice		scbus		#base SCSI code
1352c9953c3bSPeter Wemmdevice		ch		#SCSI media changers
1353c9953c3bSPeter Wemmdevice		da		#SCSI direct access devices (aka disks)
1354c9953c3bSPeter Wemmdevice		sa		#SCSI tapes
1355c9953c3bSPeter Wemmdevice		cd		#SCSI CD-ROMs
1356dc0aa406SAlexander Motindevice		ses		#Enclosure Services (SES and SAF-TE)
1357cf2458c9SMatt Jacobdevice		pt		#SCSI processor
135864ed91d5SMatt Jacobdevice		targ		#SCSI Target Mode Code
135964ed91d5SMatt Jacobdevice		targbh		#SCSI Target Mode Blackhole Device
1360cf2458c9SMatt Jacobdevice		pass		#CAM passthrough driver
13611eba4c79SScott Longdevice		sg		#Linux SCSI passthrough
1362130f4520SKenneth D. Merrydevice		ctl		#CAM Target Layer
13638909a72bSPeter Dufault
1364700daf5eSJustin T. Gibbs# CAM OPTIONS:
1365700daf5eSJustin T. Gibbs# debugging options:
1366f0f25b9cSAlexander Motin# CAMDEBUG		Compile in all possible debugging.
1367f0f25b9cSAlexander Motin# CAM_DEBUG_COMPILE	Debug levels to compile in.
1368f0f25b9cSAlexander Motin# CAM_DEBUG_FLAGS	Debug levels to enable on boot.
1369f0f25b9cSAlexander Motin# CAM_DEBUG_BUS		Limit debugging to the given bus.
1370f0f25b9cSAlexander Motin# CAM_DEBUG_TARGET	Limit debugging to the given target.
1371f0f25b9cSAlexander Motin# CAM_DEBUG_LUN		Limit debugging to the given lun.
1372f0f25b9cSAlexander Motin# CAM_DEBUG_DELAY	Delay in us after printing each debug line.
1373a3851eecSAlan Somers# CAM_IO_STATS		Publish additional CAM device statics by sysctl
1374700daf5eSJustin T. Gibbs#
1375700daf5eSJustin T. Gibbs# CAM_MAX_HIGHPOWER: Maximum number of concurrent high power (start unit) cmds
1376700daf5eSJustin T. Gibbs# SCSI_NO_SENSE_STRINGS: When defined disables sense descriptions
1377700daf5eSJustin T. Gibbs# SCSI_NO_OP_STRINGS: When defined disables opcode descriptions
137856234437SKenneth D. Merry# SCSI_DELAY: The number of MILLISECONDS to freeze the SIM (scsi adapter)
137956234437SKenneth D. Merry#             queue after a bus reset, and the number of milliseconds to
13803a937198SBrooks Davis#             freeze the device queue after a bus device reset.  This
13813a937198SBrooks Davis#             can be changed at boot and runtime with the
13823a937198SBrooks Davis#             kern.cam.scsi_delay tunable/sysctl.
1383700daf5eSJustin T. Gibbsoptions 	CAMDEBUG
1384f0f25b9cSAlexander Motinoptions 	CAM_DEBUG_COMPILE=-1
1385f0f25b9cSAlexander Motinoptions 	CAM_DEBUG_FLAGS=(CAM_DEBUG_INFO|CAM_DEBUG_PROBE|CAM_DEBUG_PERIPH)
13865895e3c8SPeter Wemmoptions 	CAM_DEBUG_BUS=-1
13875895e3c8SPeter Wemmoptions 	CAM_DEBUG_TARGET=-1
13885895e3c8SPeter Wemmoptions 	CAM_DEBUG_LUN=-1
1389f0f25b9cSAlexander Motinoptions 	CAM_DEBUG_DELAY=1
13905895e3c8SPeter Wemmoptions 	CAM_MAX_HIGHPOWER=4
1391700daf5eSJustin T. Gibbsoptions 	SCSI_NO_SENSE_STRINGS
1392700daf5eSJustin T. Gibbsoptions 	SCSI_NO_OP_STRINGS
139332672ba8SAndre Oppermannoptions 	SCSI_DELAY=5000	# Be pessimistic about Joe SCSI device
1394a25d93e5SBjoern A. Zeeboptions 	CAM_IOSCHED_DYNAMIC
1395a3851eecSAlan Somersoptions		CAM_IO_STATS
1396d38677d2SWarner Loshoptions		CAM_TEST_FAILURE
13971a7c583cSGarrett Wollman
1398700daf5eSJustin T. Gibbs# Options for the CAM CDROM driver:
1399700daf5eSJustin T. Gibbs# CHANGER_MIN_BUSY_SECONDS: Guaranteed minimum time quantum for a changer LUN
1400700daf5eSJustin T. Gibbs# CHANGER_MAX_BUSY_SECONDS: Maximum time quantum per changer LUN, only
1401700daf5eSJustin T. Gibbs#                           enforced if there is I/O waiting for another LUN
1402700daf5eSJustin T. Gibbs# The compiled in defaults for these variables are 2 and 10 seconds,
1403700daf5eSJustin T. Gibbs# respectively.
140493063432SJoerg Wunsch#
1405700daf5eSJustin T. Gibbs# These can also be changed on the fly with the following sysctl variables:
1406700daf5eSJustin T. Gibbs# kern.cam.cd.changer.min_busy_seconds
1407700daf5eSJustin T. Gibbs# kern.cam.cd.changer.max_busy_seconds
140893063432SJoerg Wunsch#
14095895e3c8SPeter Wemmoptions 	CHANGER_MIN_BUSY_SECONDS=2
14105895e3c8SPeter Wemmoptions 	CHANGER_MAX_BUSY_SECONDS=10
141193063432SJoerg Wunsch
14129dfb4471SKenneth D. Merry# Options for the CAM sequential access driver:
1413b29f9e40SMatt Jacob# SA_IO_TIMEOUT: Timeout for read/write/wfm  operations, in minutes
14149dfb4471SKenneth D. Merry# SA_SPACE_TIMEOUT: Timeout for space operations, in minutes
14159dfb4471SKenneth D. Merry# SA_REWIND_TIMEOUT: Timeout for rewind operations, in minutes
14169dfb4471SKenneth D. Merry# SA_ERASE_TIMEOUT: Timeout for erase operations, in minutes
14179f050ed5SMatt Jacob# SA_1FM_AT_EOD: Default to model which only has a default one filemark at EOT.
141825388b6cSBruce Evansoptions 	SA_IO_TIMEOUT=4
141925388b6cSBruce Evansoptions 	SA_SPACE_TIMEOUT=60
142025388b6cSBruce Evansoptions 	SA_REWIND_TIMEOUT=(2*60)
142125388b6cSBruce Evansoptions 	SA_ERASE_TIMEOUT=(4*60)
14229f050ed5SMatt Jacoboptions 	SA_1FM_AT_EOD
14239dfb4471SKenneth D. Merry
14243ece1bd2SKenneth D. Merry# Optional timeout for the CAM processor target (pt) device
14253ece1bd2SKenneth D. Merry# This is specified in seconds.  The default is 60 seconds.
142625388b6cSBruce Evansoptions 	SCSI_PT_DEFAULT_TIMEOUT=60
14273ece1bd2SKenneth D. Merry
14288904e70bSMatt Jacob# Optional enable of doing SES passthrough on other devices (e.g., disks)
14298904e70bSMatt Jacob#
14308904e70bSMatt Jacob# Normally disabled because a lot of newer SCSI disks report themselves
14318904e70bSMatt Jacob# as having SES capabilities, but this can then clot up attempts to build
14329c0ef6d5SOliver Fromme# a topology with the SES device that's on the box these drives are in....
14338904e70bSMatt Jacoboptions 	SES_ENABLE_PASSTHROUGH
14348904e70bSMatt Jacob
14356a8d6623SGarrett Wollman
14366a8d6623SGarrett Wollman#####################################################################
14376a8d6623SGarrett Wollman# MISCELLANEOUS DEVICES AND OPTIONS
14386a8d6623SGarrett Wollman
1439bc093719SEd Schoutendevice		pty		#BSD-style compatibility pseudo ttys
14406d823e81SJulian Elischerdevice		nmdm		#back-to-back tty devices
1441f71c01ccSPeter Wemmdevice		md		#Memory/malloc disk
1442932ef5b5SEd Schoutendevice		snp		#Snoop device - to look at pty/vty/etc..
1443efacde1bSBrooks Davisdevice		ccd		#Concatenated disk driver
14446aec1278SMax Laierdevice		firmware	#firmware(9) support
1445be174c7eSGreg Lehey
14466f2d8adbSBoris Popov# Kernel side iconv library
14476f2d8adbSBoris Popovoptions 	LIBICONV
14486f2d8adbSBoris Popov
144958067a99SPoul-Henning Kamp# Size of the kernel message buffer.  Should be N * pagesize.
14505895e3c8SPeter Wemmoptions 	MSGBUF_SIZE=40960
145158067a99SPoul-Henning Kamp
14526a8d6623SGarrett Wollman
14536a8d6623SGarrett Wollman#####################################################################
1454e131ba36SJohn Baldwin# HARDWARE BUS CONFIGURATION
1455e131ba36SJohn Baldwin
1456e131ba36SJohn Baldwin#
1457e131ba36SJohn Baldwin# PCI bus & PCI options:
1458e131ba36SJohn Baldwin#
1459e131ba36SJohn Baldwindevice		pci
146082cb5c3bSJohn Baldwinoptions 	PCI_HP			# PCI-Express native HotPlug
1461c41df401SJohn Baldwinoptions 	PCI_IOV			# PCI SR-IOV support
1462e131ba36SJohn Baldwin
1463e131ba36SJohn Baldwin
1464e131ba36SJohn Baldwin#####################################################################
1465d61e6649SAlexander Langer# HARDWARE DEVICE CONFIGURATION
1466d61e6649SAlexander Langer
1467d61e6649SAlexander Langer# For ISA the required hints are listed.
146886d99b68SWarner Losh# PCI, CardBus, SD/MMC and pccard are self identifying buses, so
14695bcb64f2SWarner Losh# no hints are needed.
1470d61e6649SAlexander Langer
1471d61e6649SAlexander Langer#
1472d61e6649SAlexander Langer# Mandatory devices:
1473d61e6649SAlexander Langer#
1474d61e6649SAlexander Langer
14756e818956SDavid E. O'Brien# These options are valid for other keyboard drivers as well.
14766e818956SDavid E. O'Brienoptions 	KBD_DISABLE_KEYMAP_LOAD	# refuse to load a keymap
14776e818956SDavid E. O'Brienoptions 	KBD_INSTALL_CDEV	# install a CDEV entry in /dev
14786e818956SDavid E. O'Brien
147946360281SEd Mastedevice		kbdmux			# keyboard multiplexer
148046360281SEd Masteoptions		KBDMUX_DFLT_KEYMAP	# specify the built-in keymap
148146360281SEd Mastemakeoptions	KBDMUX_DFLT_KEYMAP=it.iso
148246360281SEd Maste
14837f5092f3SJohn Baldwinoptions 	FB_DEBUG		# Frame buffer debugging
14847f5092f3SJohn Baldwin
148583409a55SEd Schouten# Enable experimental features of the syscons terminal emulator (teken).
1486e42fc368SEd Schoutenoptions 	TEKEN_CONS25		# cons25-style terminal emulation
148783409a55SEd Schoutenoptions 	TEKEN_UTF8		# UTF-8 output handling
148883409a55SEd Schouten
1489ccbb7b5eSEd Maste# The vt video console driver.
1490ccbb7b5eSEd Mastedevice		vt
1491ccbb7b5eSEd Masteoptions		VT_ALT_TO_ESC_HACK=1	# Prepend ESC sequence to ALT keys
1492ccbb7b5eSEd Masteoptions		VT_MAXWINDOWS=16	# Number of virtual consoles
1493ccbb7b5eSEd Masteoptions		VT_TWOBUTTON_MOUSE	# Use right mouse button to paste
1494ccbb7b5eSEd Maste
1495e9ee2675SMark Johnston# The following options set the maximum framebuffer size.
1496e9ee2675SMark Johnstonoptions		VT_FB_MAX_HEIGHT=480
1497e9ee2675SMark Johnstonoptions		VT_FB_MAX_WIDTH=640
1498ccbb7b5eSEd Maste
1499ccbb7b5eSEd Maste# The following options will let you change the default vt terminal colors.
1500ccbb7b5eSEd Masteoptions		TERMINAL_NORM_ATTR=(FG_GREEN|BG_BLACK)
1501ccbb7b5eSEd Masteoptions		TERMINAL_KERN_ATTR=(FG_LIGHTRED|BG_BLACK)
1502ccbb7b5eSEd Maste
15031fe04850SBruce Evans#
1504d61e6649SAlexander Langer# Optional devices:
15056a8d6623SGarrett Wollman#
15066a8d6623SGarrett Wollman
15076a8d6623SGarrett Wollman#
1508d61e6649SAlexander Langer# SCSI host adapters:
15096a8d6623SGarrett Wollman#
1510d8c51c6fSLeandro Lupori# aacraid: Adaptec by PMC RAID controllers, Series 6/7/8 and upcoming
1511d8c51c6fSLeandro Lupori#          families. Container interface, CAM required.
1512d61e6649SAlexander Langer# ahc: Adaptec 274x/284x/2910/293x/294x/394x/3950x/3960x/398X/4944/
1513d61e6649SAlexander Langer#      19160x/29160x, aic7770/aic78xx
1514cdd49e97SJustin T. Gibbs# ahd: Adaptec 29320/39320 Controllers.
1515a9ab459bSMarius Strobl# esp: Emulex ESP, NCR 53C9x and QLogic FAS families based controllers
1516a9ab459bSMarius Strobl#      including the AMD Am53C974 (found on devices such as the Tekram
1517a9ab459bSMarius Strobl#      DC-390(T)) and the Sun ESP and FAS families of controllers
1518d61e6649SAlexander Langer# isp: Qlogic ISP 1020, 1040 and 1040B PCI SCSI host adapters,
1519d61e6649SAlexander Langer#      ISP 1240 Dual Ultra SCSI, ISP 1080 and 1280 (Dual) Ultra2,
1520d61e6649SAlexander Langer#      ISP 12160 Ultra3 SCSI,
1521e8a0f829SMatt Jacob#      Qlogic ISP 2100 and ISP 2200 1Gb Fibre Channel host adapters.
1522e8a0f829SMatt Jacob#      Qlogic ISP 2300 and ISP 2312 2Gb Fibre Channel host adapters.
1523af606348SMatt Jacob#      Qlogic ISP 2322 and ISP 6322 2Gb Fibre Channel host adapters.
1524ac918c84SMatt Jacob# ispfw: Firmware module for Qlogic host adapters
1525f7ab0158SWarner Losh# mpr: LSI-Logic MPT/Fusion Gen 3
1526f7ab0158SWarner Losh# mps: LSI-Logic MPT/Fusion Gen 2
152764fa5108SMatt Jacob# mpt: LSI-Logic MPT/Fusion 53c1020 or 53c1030 Ultra4
152864fa5108SMatt Jacob#      or FC9x9 Fibre Channel host adapters.
1529fb91fd69SGerard Roudier# sym: Symbios/Logic 53C8XX family of PCI-SCSI I/O processors:
1530fb91fd69SGerard Roudier#      53C810, 53C810A, 53C815, 53C825,  53C825A, 53C860, 53C875,
1531fb91fd69SGerard Roudier#      53C876, 53C885,  53C895, 53C895A, 53C896,  53C897, 53C1510D,
1532fb91fd69SGerard Roudier#      53C1010-33, 53C1010-66.
1533d61e6649SAlexander Langer
1534d8c51c6fSLeandro Luporidevice		aacraid
1535d61e6649SAlexander Langerdevice		ahc
1536cdd49e97SJustin T. Gibbsdevice		ahd
15371b946e21SScott Longdevice		esp
1538c5933b20SScott Longdevice		iscsi_initiator
1539d61e6649SAlexander Langerdevice		isp
15400787f2b8SMatt Jacobhint.isp.0.disable="1"
15410787f2b8SMatt Jacobhint.isp.0.role="3"
15420787f2b8SMatt Jacobhint.isp.0.prefer_iomap="1"
15430787f2b8SMatt Jacobhint.isp.0.prefer_memmap="1"
15440787f2b8SMatt Jacobhint.isp.0.fwload_disable="1"
15450787f2b8SMatt Jacobhint.isp.0.ignore_nvram="1"
15460787f2b8SMatt Jacobhint.isp.0.fullduplex="1"
15470787f2b8SMatt Jacobhint.isp.0.topology="lport"
15480787f2b8SMatt Jacobhint.isp.0.topology="nport"
15490787f2b8SMatt Jacobhint.isp.0.topology="lport-only"
15500787f2b8SMatt Jacobhint.isp.0.topology="nport-only"
15510787f2b8SMatt Jacob# we can't get u_int64_t types, nor can we get strings if it's got
15520787f2b8SMatt Jacob# a leading 0x, hence this silly dodge.
15530787f2b8SMatt Jacobhint.isp.0.portwnn="w50000000aaaa0000"
15540787f2b8SMatt Jacobhint.isp.0.nodewnn="w50000000aaaa0001"
1555d61e6649SAlexander Langerdevice		ispfw
1556f7ab0158SWarner Loshdevice		mpr			# LSI-Logic MPT-Fusion 3
1557f7ab0158SWarner Loshdevice		mps			# LSI-Logic MPT-Fusion 2
1558f7ab0158SWarner Loshdevice		mpt			# LSI-Logic MPT-Fusion
1559d61e6649SAlexander Langerdevice		sym
1560d61e6649SAlexander Langer
1561d61e6649SAlexander Langer# The aic7xxx driver will attempt to use memory mapped I/O for all PCI
1562d61e6649SAlexander Langer# controllers that have it configured only if this option is set. Unfortunately,
1563d61e6649SAlexander Langer# this doesn't work on some motherboards, which prevents it from being the
1564d61e6649SAlexander Langer# default.
1565d61e6649SAlexander Langeroptions 	AHC_ALLOW_MEMIO
1566d61e6649SAlexander Langer
1567fac70739SJeroen Ruigrok van der Werven# Dump the contents of the ahc controller configuration PROM.
1568fac70739SJeroen Ruigrok van der Wervenoptions 	AHC_DUMP_EEPROM
1569fac70739SJeroen Ruigrok van der Werven
1570fac70739SJeroen Ruigrok van der Werven# Bitmap of units to enable targetmode operations.
1571fac70739SJeroen Ruigrok van der Wervenoptions 	AHC_TMODE_ENABLE
1572fac70739SJeroen Ruigrok van der Werven
1573662d3818SScott Long# Compile in Aic7xxx Debugging code.
1574662d3818SScott Longoptions 	AHC_DEBUG
1575662d3818SScott Long
1576662d3818SScott Long# Aic7xxx driver debugging options. See sys/dev/aic7xxx/aic7xxx.h
1577662d3818SScott Longoptions 	AHC_DEBUG_OPTS
1578662d3818SScott Long
1579f8f8803bSBruce Evans# Print register bitfields in debug output.  Adds ~128k to driver
1580f8f8803bSBruce Evans# See ahc(4).
1581662d3818SScott Longoptions 	AHC_REG_PRETTY_PRINT
1582662d3818SScott Long
1583cdd49e97SJustin T. Gibbs# Compile in aic79xx debugging code.
1584cdd49e97SJustin T. Gibbsoptions 	AHD_DEBUG
1585cdd49e97SJustin T. Gibbs
1586f8f8803bSBruce Evans# Aic79xx driver debugging options.  Adds ~215k to driver.  See ahd(4).
1587cdd49e97SJustin T. Gibbsoptions 	AHD_DEBUG_OPTS=0xFFFFFFFF
1588cdd49e97SJustin T. Gibbs
158943e9d8a3SScott Long# Print human-readable register definitions when debugging
159043e9d8a3SScott Longoptions 	AHD_REG_PRETTY_PRINT
159143e9d8a3SScott Long
1592662d3818SScott Long# Bitmap of units to enable targetmode operations.
1593662d3818SScott Longoptions 	AHD_TMODE_ENABLE
1594662d3818SScott Long
1595c5933b20SScott Long# Options used in dev/iscsi (Software iSCSI stack)
1596c5933b20SScott Long#
1597c5933b20SScott Longoptions 	ISCSI_INITIATOR_DEBUG=9
1598c5933b20SScott Long
1599d61e6649SAlexander Langer# Options used in dev/isp/ (Qlogic SCSI/FC driver).
1600d61e6649SAlexander Langer#
1601d61e6649SAlexander Langer#	ISP_TARGET_MODE		-	enable target mode operation
1602d61e6649SAlexander Langer#
160364fa5108SMatt Jacoboptions 	ISP_TARGET_MODE=1
1604af606348SMatt Jacob#
16059a1b0d43SMatt Jacob#	ISP_DEFAULT_ROLES	-	default role
16069a1b0d43SMatt Jacob#		none=0
16079a1b0d43SMatt Jacob#		target=1
16089a1b0d43SMatt Jacob#		initiator=2
16099a1b0d43SMatt Jacob#		both=3			(not supported currently)
1610af606348SMatt Jacob#
161115f0f952SMatt Jacob#	ISP_INTERNAL_TARGET		(trivial internal disk target, for testing)
161215f0f952SMatt Jacob#
1613e2873b76SMatt Jacoboptions 	ISP_DEFAULT_ROLES=0
1614d61e6649SAlexander Langer
1615d61e6649SAlexander Langer#options 	SYM_SETUP_SCSI_DIFF	#-HVD support for 825a, 875, 885
1616d61e6649SAlexander Langer					# disabled:0 (default), enabled:1
1617d61e6649SAlexander Langer#options 	SYM_SETUP_PCI_PARITY	#-PCI parity checking
1618d61e6649SAlexander Langer					# disabled:0, enabled:1 (default)
1619d61e6649SAlexander Langer#options 	SYM_SETUP_MAX_LUN	#-Number of LUNs supported
1620d61e6649SAlexander Langer					# default:8, range:[1..64]
16216a8d6623SGarrett Wollman
16226e818956SDavid E. O'Brien#
16236e818956SDavid E. O'Brien# Compaq "CISS" RAID controllers (SmartRAID 5* series)
16246e818956SDavid E. O'Brien# These controllers have a SCSI-like interface, and require the
16256e818956SDavid E. O'Brien# CAM infrastructure.
16266e818956SDavid E. O'Brien#
16276e818956SDavid E. O'Briendevice		ciss
16286e818956SDavid E. O'Brien
16296e818956SDavid E. O'Brien#
16306e818956SDavid E. O'Brien# Intel Integrated RAID controllers.
16316e818956SDavid E. O'Brien# This driver was developed and is maintained by Intel.  Contacts
16326e818956SDavid E. O'Brien# at Intel for this driver are
16336e818956SDavid E. O'Brien# "Kannanthanam, Boji T" <boji.t.kannanthanam@intel.com> and
16346e818956SDavid E. O'Brien# "Leubner, Achim" <achim.leubner@intel.com>.
16356e818956SDavid E. O'Brien#
16366e818956SDavid E. O'Briendevice		iir
16376e818956SDavid E. O'Brien
16386e818956SDavid E. O'Brien#
16396e818956SDavid E. O'Brien# Mylex AcceleRAID and eXtremeRAID controllers with v6 and later
16406e818956SDavid E. O'Brien# firmware.  These controllers have a SCSI-like interface, and require
16416e818956SDavid E. O'Brien# the CAM infrastructure.
16426e818956SDavid E. O'Brien#
16436e818956SDavid E. O'Briendevice		mly
16446e818956SDavid E. O'Brien
16456e818956SDavid E. O'Brien#
16466e818956SDavid E. O'Brien# Compaq Smart RAID, Mylex DAC960 and AMI MegaRAID controllers.  Only
16476e818956SDavid E. O'Brien# one entry is needed; the code will find and configure all supported
16486e818956SDavid E. O'Brien# controllers.
16496e818956SDavid E. O'Brien#
16506e818956SDavid E. O'Briendevice		ida		# Compaq Smart RAID
16516e818956SDavid E. O'Briendevice		mlx		# Mylex DAC960
16526e818956SDavid E. O'Briendevice		amr		# AMI MegaRAID
165364c71632SScott Longdevice		amrp		# SCSI Passthrough interface (optional, CAM req.)
16547f631a41SScott Longdevice		mfi		# LSI MegaRAID SAS
1655f366931cSScott Longdevice		mfip		# LSI MegaRAID SAS passthrough, requires CAM
16566b31d3f7SScott Longoptions 	MFI_DEBUG
1657a58b4afaSMark Johnstondevice		mrsas		# LSI/Avago MegaRAID SAS/SATA, 6Gb/s and 12Gb/s
16586e818956SDavid E. O'Brien
16596e818956SDavid E. O'Brien#
16606e818956SDavid E. O'Brien# 3ware ATA RAID
16616e818956SDavid E. O'Brien#
16626e818956SDavid E. O'Briendevice		twe		# 3ware ATA RAID
16636e818956SDavid E. O'Brien
166490d3341eSPeter Wemm#
1665e19ef875SAlexander Motin# Serial ATA host controllers:
1666e19ef875SAlexander Motin#
1667e19ef875SAlexander Motin# ahci: Advanced Host Controller Interface (AHCI) compatible
1668dd48af36SAlexander Motin# mvs:  Marvell 88SX50XX/88SX60XX/88SX70XX/SoC controllers
1669e19ef875SAlexander Motin# siis: SiliconImage SiI3124/SiI3132/SiI3531 controllers
16701a00526bSAlexander Motin#
16711a00526bSAlexander Motin# These drivers are part of cam(4) subsystem. They supersede less featured
16721a00526bSAlexander Motin# ata(4) subsystem drivers, supporting same hardware.
1673e19ef875SAlexander Motin
1674e19ef875SAlexander Motindevice		ahci
1675dd48af36SAlexander Motindevice		mvs
1676e19ef875SAlexander Motindevice		siis
1677e19ef875SAlexander Motin
1678e19ef875SAlexander Motin#
167945f6d665SAlexander Motin# The 'ATA' driver supports all legacy ATA/ATAPI controllers, including
168045f6d665SAlexander Motin# PC Card devices. You only need one "device ata" for it to find all
16816d04301dSAlexander Langer# PCI and PC Card ATA/ATAPI devices on modern machines.
1682c4bda3c6SAlexander Motin# Alternatively, individual bus and chipset drivers may be chosen by using
1683c4bda3c6SAlexander Motin# the 'atacore' driver then selecting the drivers on a per vendor basis.
1684c4bda3c6SAlexander Motin# For example to build a system which only supports a VIA chipset,
1685c4bda3c6SAlexander Motin# omit 'ata' and include the 'atacore', 'atapci' and 'atavia' drivers.
1686c9953c3bSPeter Wemmdevice		ata
1687c4bda3c6SAlexander Motin
1688c4bda3c6SAlexander Motin# Modular ATA
1689c4bda3c6SAlexander Motin#device		atacore		# Core ATA functionality
16905a62e92fSAlexander Motin#device		atapccard	# CARDBUS support
1691c4bda3c6SAlexander Motin#device		ataisa		# ISA bus support
1692c4bda3c6SAlexander Motin#device		atapci		# PCI bus support; only generic chipset support
1693c4bda3c6SAlexander Motin
1694c4bda3c6SAlexander Motin# PCI ATA chipsets
1695c4bda3c6SAlexander Motin#device		ataacard	# ACARD
1696c4bda3c6SAlexander Motin#device		ataacerlabs	# Acer Labs Inc. (ALI)
1697c4bda3c6SAlexander Motin#device		ataamd		# American Micro Devices (AMD)
1698c4bda3c6SAlexander Motin#device		ataati		# ATI
1699c4bda3c6SAlexander Motin#device		atacenatek	# Cenatek
1700c4bda3c6SAlexander Motin#device		atacypress	# Cypress
1701c4bda3c6SAlexander Motin#device		atacyrix	# Cyrix
1702c4bda3c6SAlexander Motin#device		atahighpoint	# HighPoint
1703c4bda3c6SAlexander Motin#device		ataintel	# Intel
1704c4bda3c6SAlexander Motin#device		ataite		# Integrated Technology Inc. (ITE)
1705c4bda3c6SAlexander Motin#device		atajmicron	# JMicron
1706c4bda3c6SAlexander Motin#device		atamarvell	# Marvell
1707c4bda3c6SAlexander Motin#device		atamicron	# Micron
1708c4bda3c6SAlexander Motin#device		atanational	# National
1709c4bda3c6SAlexander Motin#device		atanetcell	# NetCell
1710c4bda3c6SAlexander Motin#device		atanvidia	# nVidia
1711c4bda3c6SAlexander Motin#device		atapromise	# Promise
1712c4bda3c6SAlexander Motin#device		ataserverworks	# ServerWorks
1713c4bda3c6SAlexander Motin#device		atasiliconimage	# Silicon Image Inc. (SiI) (formerly CMD)
1714c4bda3c6SAlexander Motin#device		atasis		# Silicon Integrated Systems Corp.(SiS)
1715c4bda3c6SAlexander Motin#device		atavia		# VIA Technologies Inc.
1716c4bda3c6SAlexander Motin
17178b89ef0aSSøren Schmidt#
17186d04301dSAlexander Langer# For older non-PCI, non-PnPBIOS systems, these are the hints lines to add:
17196d04301dSAlexander Langerhint.ata.0.at="isa"
17206d04301dSAlexander Langerhint.ata.0.port="0x1f0"
17216d04301dSAlexander Langerhint.ata.0.irq="14"
17226d04301dSAlexander Langerhint.ata.1.at="isa"
17236d04301dSAlexander Langerhint.ata.1.port="0x170"
17246d04301dSAlexander Langerhint.ata.1.irq="15"
17256d04301dSAlexander Langer
17266d04301dSAlexander Langer#
1727501ef98fSMarcel Moolenaar# uart: newbusified driver for serial interfaces.  It consolidates the sio(4),
1728501ef98fSMarcel Moolenaar#	sab(4) and zs(4) drivers.
1729c8956b36SMarcel Moolenaar#
1730501ef98fSMarcel Moolenaardevice		uart
1731501ef98fSMarcel Moolenaar
17328194412bSMarcel Moolenaar# Options for uart(4)
17338194412bSMarcel Moolenaaroptions 	UART_PPS_ON_CTS		# Do time pulse capturing using CTS
17348194412bSMarcel Moolenaar					# instead of DCD.
17351662b008SIan Leporeoptions 	UART_POLL_FREQ		# Set polling rate, used when hw has
17361662b008SIan Lepore					# no interrupt support (50 Hz default).
17378194412bSMarcel Moolenaar
1738501ef98fSMarcel Moolenaar# The following hint should only be used for pure ISA devices.  It is not
1739501ef98fSMarcel Moolenaar# needed otherwise.  Use of hints is strongly discouraged.
1740501ef98fSMarcel Moolenaarhint.uart.0.at="isa"
1741501ef98fSMarcel Moolenaar
1742c8956b36SMarcel Moolenaar# The following 3 hints are used when the UART is a system device (i.e., a
1743c8956b36SMarcel Moolenaar# console or debug port), but only on platforms that don't have any other
1744c8956b36SMarcel Moolenaar# means to pass the information to the kernel.  The unit number of the hint
1745c8956b36SMarcel Moolenaar# is only used to bundle the hints together.  There is no relation to the
1746c8956b36SMarcel Moolenaar# unit number of the probed UART.
1747501ef98fSMarcel Moolenaarhint.uart.0.port="0x3f8"
1748501ef98fSMarcel Moolenaarhint.uart.0.flags="0x10"
1749501ef98fSMarcel Moolenaarhint.uart.0.baud="115200"
1750501ef98fSMarcel Moolenaar
1751501ef98fSMarcel Moolenaar# `flags' for serial drivers that support consoles like sio(4) and uart(4):
1752c8956b36SMarcel Moolenaar#	0x10	enable console support for this unit.  Other console flags
1753c8956b36SMarcel Moolenaar#		(if applicable) are ignored unless this is set.  Enabling
1754c8956b36SMarcel Moolenaar#		console support does not make the unit the preferred console.
1755c8956b36SMarcel Moolenaar#		Boot with -h or set boot_serial=YES in the loader.  For sio(4)
1756c8956b36SMarcel Moolenaar#		specifically, the 0x20 flag can also be set (see above).
1757c8956b36SMarcel Moolenaar#		Currently, at most one unit can have console support; the
1758c8956b36SMarcel Moolenaar#		first one (in config file order) with this flag set is
1759d51e8487SJosh Paetzel#		preferred.  Setting this flag for sio0 gives the old behavior.
1760c8956b36SMarcel Moolenaar#	0x80	use this port for serial line gdb support in ddb.  Also known
1761c8956b36SMarcel Moolenaar#		as debug port.
17629546766aSBruce Evans#
17639546766aSBruce Evans
1764501ef98fSMarcel Moolenaar# Options for serial drivers that support consoles:
176591ed2fecSJohn-Mark Gurneyoptions 	BREAK_TO_DEBUGGER	# A BREAK/DBG on the console goes to
1766c8956b36SMarcel Moolenaar					# ddb, if available.
17676a8d6623SGarrett Wollman
176826b6ea69SPaul Saab# Solaris implements a new BREAK which is initiated by a character
176926b6ea69SPaul Saab# sequence CR ~ ^b which is similar to a familiar pattern used on
17709c0ef6d5SOliver Fromme# Sun servers by the Remote Console.  There are FreeBSD extensions:
1771c7b3d8e2SMaxim Konovalov# CR ~ ^p requests force panic and CR ~ ^r requests a clean reboot.
177226b6ea69SPaul Saaboptions 	ALT_BREAK_TO_DEBUGGER
177326b6ea69SPaul Saab
1774af2e25a6SMarcel Moolenaar# Serial Communications Controller
1775af2e25a6SMarcel Moolenaar# Supports the Siemens SAB 82532 and Zilog Z8530 multi-channel
1776af2e25a6SMarcel Moolenaar# communications controllers.
1777af2e25a6SMarcel Moolenaardevice		scc
1778af2e25a6SMarcel Moolenaar
17799c564b6cSJohn Hay# PCI Universal Communications driver
178064220a7eSMarcel Moolenaar# Supports various multi port PCI I/O cards.
17819c564b6cSJohn Haydevice		puc
17829c564b6cSJohn Hay
17836a8d6623SGarrett Wollman#
1784d61e6649SAlexander Langer# Network interfaces:
17856a8d6623SGarrett Wollman#
1786dfd77572SJohn Baldwin# MII bus support is required for many PCI Ethernet NICs,
1787d61e6649SAlexander Langer# namely those which use MII-compliant transceivers or implement
17883c7c6c12SMike Pritchard# transceiver control interfaces that operate like an MII.  Adding
17898c1093fcSMarius Strobl# "device miibus" to the kernel config pulls in support for the generic
17908c1093fcSMarius Strobl# miibus API, the common support for for bit-bang'ing the MII and all
17918c1093fcSMarius Strobl# of the PHY drivers, including a generic one for PHYs that aren't
17928c1093fcSMarius Strobl# specifically handled by an individual driver.  Support for specific
17938c1093fcSMarius Strobl# PHYs may be built by adding "device mii", "device mii_bitbang" if
17948c1093fcSMarius Strobl# needed by the NIC driver and then adding the appropriate PHY driver.
1795dfd77572SJohn Baldwindevice  	mii		# Minimal MII support
17968c1093fcSMarius Strobldevice  	mii_bitbang	# Common module for bit-bang'ing the MII
17978c1093fcSMarius Strobldevice  	miibus		# MII support w/ bit-bang'ing and all PHYs
1798dfd77572SJohn Baldwin
1799dfd77572SJohn Baldwindevice  	acphy		# Altima Communications AC101
1800dfd77572SJohn Baldwindevice  	amphy		# AMD AM79c873 / Davicom DM910{1,2}
1801dfd77572SJohn Baldwindevice  	atphy		# Attansic/Atheros F1
1802dfd77572SJohn Baldwindevice  	axphy		# Asix Semiconductor AX88x9x
1803dfd77572SJohn Baldwindevice  	bmtphy		# Broadcom BCM5201/BCM5202 and 3Com 3c905C
1804d933e97fSStephen Hurddevice		bnxt		# Broadcom NetXtreme-C/NetXtreme-E
1805dfd77572SJohn Baldwindevice  	brgphy		# Broadcom BCM54xx/57xx 1000baseTX
180678c1387fSIan Leporedevice  	cgem		# Cadence GEM Gigabit Ethernet
1807dfd77572SJohn Baldwindevice  	ciphy		# Cicada/Vitesse CS/VSC8xxx
1808dfd77572SJohn Baldwindevice  	e1000phy	# Marvell 88E1000 1000/100/10-BT
1809dfd77572SJohn Baldwindevice  	gentbi		# Generic 10-bit 1000BASE-{LX,SX} fiber ifaces
1810dfd77572SJohn Baldwindevice  	icsphy		# ICS ICS1889-1893
1811dfd77572SJohn Baldwindevice  	ip1000phy	# IC Plus IP1000A/IP1001
1812dfd77572SJohn Baldwindevice  	jmphy		# JMicron JMP211/JMP202
1813dfd77572SJohn Baldwindevice  	lxtphy		# Level One LXT-970
1814dfd77572SJohn Baldwindevice  	mlphy		# Micro Linear 6692
1815dfd77572SJohn Baldwindevice  	nsgphy		# NatSemi DP8361/DP83865/DP83891
1816dfd77572SJohn Baldwindevice  	nsphy		# NatSemi DP83840A
1817dfd77572SJohn Baldwindevice  	nsphyter	# NatSemi DP83843/DP83815
1818dfd77572SJohn Baldwindevice  	pnaphy		# HomePNA
1819dfd77572SJohn Baldwindevice  	qsphy		# Quality Semiconductor QS6612
1820e6713fe5SPyun YongHyeondevice  	rdcphy		# RDC Semiconductor R6040
1821dfd77572SJohn Baldwindevice  	rgephy		# RealTek 8169S/8110S/8211B/8211C
1822dfd77572SJohn Baldwindevice  	rlphy		# RealTek 8139
1823dfd77572SJohn Baldwindevice  	rlswitch	# RealTek 8305
1824dfd77572SJohn Baldwindevice  	smcphy		# SMSC LAN91C111
1825dfd77572SJohn Baldwindevice  	tdkphy		# TDK 89Q2120
1826dfd77572SJohn Baldwindevice  	tlphy		# Texas Instruments ThunderLAN
1827dfd77572SJohn Baldwindevice  	truephy		# LSI TruePHY
1828dfd77572SJohn Baldwindevice		xmphy		# XaQti XMAC II
1829d61e6649SAlexander Langer
18307f5092f3SJohn Baldwin# an:   Aironet 4500/4800 802.11 wireless adapters. Supports the PCMCIA,
18317f5092f3SJohn Baldwin#       PCI and ISA varieties.
1832ba26d470SStanislav Sedov# ae:   Support for gigabit ethernet adapters based on the Attansic/Atheros
1833ba26d470SStanislav Sedov#       L2 PCI-Express FastEthernet controllers.
1834cfef026aSPyun YongHyeon# age:  Support for gigabit ethernet adapters based on the Attansic/Atheros
1835cfef026aSPyun YongHyeon#       L1 PCI express gigabit ethernet controllers.
1836d68875ebSPyun YongHyeon# alc:  Support for Atheros AR8131/AR8132 PCIe ethernet controllers.
18373c6e15bcSPyun YongHyeon# ale:  Support for Atheros AR8121/AR8113/AR8114 PCIe ethernet controllers.
1838390cee87SJohn Baldwin# ath:  Atheros a/b/g WiFi adapters (requires ath_hal and wlan)
1839343ed0a8SJohn Baldwin# bce:	Broadcom NetXtreme II (BCM5706/BCM5708) PCI/PCIe Gigabit Ethernet
1840343ed0a8SJohn Baldwin#       adapters.
1841343ed0a8SJohn Baldwin# bfe:	Broadcom BCM4401 Ethernet adapter.
184295d67482SBill Paul# bge:	Support for gigabit ethernet adapters based on the Broadcom
1843586d7c2eSJohn Polstra#	BCM570x family of controllers, including the 3Com 3c996-T,
1844586d7c2eSJohn Polstra#	the Netgear GA302T, the SysKonnect SK-9D21 and SK-9D41, and
1845586d7c2eSJohn Polstra#	the embedded gigE NICs on Dell PowerEdge 2550 servers.
1846d933e97fSStephen Hurd# bnxt:	Broadcom NetXtreme-C and NetXtreme-E PCIe 10/25/50G Ethernet adapters.
18474e400768SDavid Christensen# bxe:	Broadcom NetXtreme II (BCM5771X/BCM578XX) PCIe 10Gb Ethernet
1848dd46ab31SDavid Christensen#       adapters.
18493132ad0dSWarner Losh# bwi:	Broadcom BCM430* and BCM431* family of wireless adapters.
1850eb5ef23cSWeongyo Jeong# bwn:	Broadcom BCM43xx family of wireless adapters.
1851119051cbSMarius Strobl# cas:	Sun Cassini/Cassini+ and National Semiconductor DP83065 Saturn
1852ca7fe84aSNavdeep Parhar# cxgb: Chelsio T3 based 1GbE/10GbE PCIe Ethernet adapters.
1853a74031a5SJohn Baldwin# cxgbe:Chelsio T4, T5, and T6-based 1/10/25/40/100GbE PCIe Ethernet
185424957938SJohn Baldwin#	adapters.
185524957938SJohn Baldwin# cxgbev: Chelsio T4, T5, and T6-based PCIe Virtual Functions.
1856d61e6649SAlexander Langer# dc:   Support for PCI fast ethernet adapters based on the DEC/Intel 21143
1857d61e6649SAlexander Langer#       and various workalikes including:
1858d61e6649SAlexander Langer#       the ADMtek AL981 Comet and AN985 Centaur, the ASIX Electronics
1859d61e6649SAlexander Langer#       AX88140A and AX88141, the Davicom DM9100 and DM9102, the Lite-On
1860d61e6649SAlexander Langer#       82c168 and 82c169 PNIC, the Lite-On/Macronix LC82C115 PNIC II
1861d61e6649SAlexander Langer#       and the Macronix 98713/98713A/98715/98715A/98725 PMAC. This driver
1862d61e6649SAlexander Langer#       replaces the old al, ax, dm, pn and mx drivers.  List of brands:
1863d61e6649SAlexander Langer#       Digital DE500-BA, Kingston KNE100TX, D-Link DFE-570TX, SOHOware SFA110,
1864d61e6649SAlexander Langer#       SVEC PN102-TX, CNet Pro110B, 120A, and 120B, Compex RL100-TX,
1865d61e6649SAlexander Langer#       LinkSys LNE100TX, LNE100TX V2.0, Jaton XpressNet, Alfa Inc GFC2204,
1866d61e6649SAlexander Langer#       KNE110TX.
1867a59716d2SPrafulla Deuskar# em:   Intel Pro/1000 Gigabit Ethernet 82542, 82543, 82544 based adapters.
1868d61e6649SAlexander Langer# fxp:  Intel EtherExpress Pro/100B
1869cf87044eSMatt Jacob#	(hint of prefer_iomap can be done to prefer I/O instead of Mem mapping)
18701ed3fed7SMarius Strobl# gem:  Apple GMAC/Sun ERI/Sun GEM
187152c07e1cSMarius Strobl# hme:  Sun HME (Happy Meal Ethernet)
187275a1bf5fSPyun YongHyeon# jme:  JMicron JMC260 Fast Ethernet/JMC250 Gigabit Ethernet based adapters.
187344ac0964SMarius Strobl# le:   AMD Am7900 LANCE and Am79C9xx PCnet
1874c678bc4fSBill Paul# lge:	Support for PCI gigabit ethernet adapters based on the Level 1
1875c678bc4fSBill Paul#	LXT1001 NetCellerator chipset. This includes the D-Link DGE-500SX,
1876c678bc4fSBill Paul#	SMC TigerCard 1000 (SMC9462SX), and some Addtron cards.
1877f173c2b7SSean Bruno# lio:  Support for Cavium 23XX Ethernet adapters
1878d1f25d5dSBernhard Schmidt# malo: Marvell Libertas wireless NICs.
1879d1f25d5dSBernhard Schmidt# mwl:  Marvell 88W8363 802.11n wireless NICs.
1880778eefa4SJohn Baldwin#	Requires the mwl firmware module
1881778eefa4SJohn Baldwin# mwlfw: Marvell 88W8363 firmware
1882c9d21ce9SPyun YongHyeon# msk:	Support for gigabit ethernet adapters based on the Marvell/SysKonnect
1883c9d21ce9SPyun YongHyeon#	Yukon II Gigabit controllers, including 88E8021, 88E8022, 88E8061,
1884c9d21ce9SPyun YongHyeon#	88E8062, 88E8035, 88E8036, 88E8038, 88E8050, 88E8052, 88E8053,
1885c9d21ce9SPyun YongHyeon#	88E8055, 88E8056 and D-Link 560T/550SX.
1886c9c8bf05SHans Petter Selasky# mlxfw: Mellanox firmware update module.
188722f2c49aSHans Petter Selasky# mlx5:	Mellanox ConnectX-4 and ConnectX-4 LX IB and Eth shared code module.
188822f2c49aSHans Petter Selasky# mlx5en:Mellanox ConnectX-4 and ConnectX-4 LX PCIe Ethernet adapters.
1889d3d67116SMaxim Sobolev# my:	Myson Fast Ethernet (MTD80X, MTD89X)
1890ce4946daSBill Paul# nge:	Support for PCI gigabit ethernet adapters based on the National
1891ce4946daSBill Paul#	Semiconductor DP83820 and DP83821 chipset. This includes the
1892ce4946daSBill Paul#	SMC EZ Card 1000 (SMC9462TX), D-Link DGE-500T, Asante FriendlyNet
1893cc2824b8SBjoern A. Zeeb#	GigaNIX 1000TA and 1000TPC, the Addtron AEG320T, the Surecom
1894cc2824b8SBjoern A. Zeeb#	EP-320G-TX and the Netgear GA622T.
18952f345d8eSLuigi Rizzo# oce:	Emulex 10 Gbit adapters (OneConnect Ethernet)
1896390cee87SJohn Baldwin# ral:	Ralink Technology IEEE 802.11 wireless adapter
18970587cad8SPyun YongHyeon# re:   RealTek 8139C+/8169/816xS/811xS/8101E PCI/PCIe Ethernet adapter
1898d61e6649SAlexander Langer# rl:   Support for PCI fast ethernet adapters based on the RealTek 8129/8139
1899d61e6649SAlexander Langer#       chipset.  Note that the RealTek driver defaults to using programmed
1900d61e6649SAlexander Langer#       I/O to do register accesses because memory mapped mode seems to cause
1901d61e6649SAlexander Langer#       severe lockups on SMP hardware.  This driver also supports the
1902d61e6649SAlexander Langer#       Accton EN1207D `Cheetah' adapter, which uses a chip called
1903d61e6649SAlexander Langer#       the MPX 5030/5038, which is either a RealTek in disguise or a
1904d61e6649SAlexander Langer#       RealTek workalike.  Note that the D-Link DFE-530TX+ uses the RealTek
1905d61e6649SAlexander Langer#       chipset and is supported by this driver, not the 'vr' driver.
1906b38b13d8SKevin Lo# rtwn: RealTek wireless adapters.
1907b38b13d8SKevin Lo# rtwnfw: RealTek wireless firmware.
1908d193ed0bSPyun YongHyeon# sge:  Silicon Integrated Systems SiS190/191 Fast/Gigabit Ethernet adapter
1909b2ca5572SAlexander Langer# sis:  Support for NICs based on the Silicon Integrated Systems SiS 900,
1910b2ca5572SAlexander Langer#       SiS 7016 and NS DP83815 PCI fast ethernet controller chips.
1911d61e6649SAlexander Langer# sk:   Support for the SysKonnect SK-984x series PCI gigabit ethernet NICs.
1912d61e6649SAlexander Langer#       This includes the SK-9841 and SK-9842 single port cards (single mode
1913d61e6649SAlexander Langer#       and multimode fiber) and the SK-9843 and SK-9844 dual port cards
1914d61e6649SAlexander Langer#       (also single mode and multimode).
1915d61e6649SAlexander Langer#       The driver will autodetect the number of ports on the card and
1916d61e6649SAlexander Langer#       attach each one as a separate network interface.
1917d61e6649SAlexander Langer# ste:  Sundance Technologies ST201 PCI fast ethernet controller, includes
1918d61e6649SAlexander Langer#       the D-Link DFE-550TX.
1919d497bdf1SPyun YongHyeon# stge: Support for gigabit ethernet adapters based on the Sundance/Tamarack
1920d497bdf1SPyun YongHyeon#       TC9021 family of controllers, including the Sundance ST2021/ST2023,
1921d497bdf1SPyun YongHyeon#       the Sundance/Tamarack TC9021, the D-Link DL-4000 and ASUS NX1101.
1922d61e6649SAlexander Langer# ti:   Support for PCI gigabit ethernet NICs based on the Alteon Networks
1923d61e6649SAlexander Langer#       Tigon 1 and Tigon 2 chipsets.  This includes the Alteon AceNIC, the
1924c86eb67fSDmitry Morozovsky#       3Com 3c985, the Netgear GA620 and various others.  Note that you will
1925c86eb67fSDmitry Morozovsky#       probably want to bump up kern.ipc.nmbclusters a lot to use this driver.
1926d61e6649SAlexander Langer# vr:   Support for various fast ethernet adapters based on the VIA
1927d61e6649SAlexander Langer#       Technologies VT3043 `Rhine I' and VT86C100A `Rhine II' chips,
1928e83bcc01SGavin Atkinson#       including the D-Link DFE520TX and D-Link DFE530TX (see 'rl' for
1929e83bcc01SGavin Atkinson#       DFE530TX+), the Hawking Technologies PN102TX, and the AOpen/Acer ALN-320.
19302608aefcSPyun YongHyeon# vte:  DM&P Vortex86 RDC R6040 Fast Ethernet
19317f5092f3SJohn Baldwin# wi:   Lucent WaveLAN/IEEE 802.11 PCMCIA adapters. Note: this supports both
19327f5092f3SJohn Baldwin#       the PCMCIA and ISA cards: the ISA card is really a PCMCIA to ISA
19337f5092f3SJohn Baldwin#       bridge with a PCMCIA adapter plugged into it.
1934d61e6649SAlexander Langer# xl:   Support for the 3Com 3c900, 3c905, 3c905B and 3c905C (Fast)
1935d61e6649SAlexander Langer#       Etherlink XL cards and integrated controllers.  This includes the
1936d61e6649SAlexander Langer#       integrated 3c905B-TX chips in certain Dell Optiplex and Dell
1937d61e6649SAlexander Langer#       Precision desktop machines and the integrated 3c905-TX chips
1938d61e6649SAlexander Langer#       in Dell Latitude laptop docking stations.
1939d61e6649SAlexander Langer#       Also supported: 3Com 3c980(C)-TX, 3Com 3cSOHO100-TX, 3Com 3c450-TX
1940d61e6649SAlexander Langer
194186d99b68SWarner Losh# Order for ISA devices is important here
19427f5092f3SJohn Baldwin
19437f5092f3SJohn Baldwindevice		an
19447f5092f3SJohn Baldwindevice		wi
19457f5092f3SJohn Baldwin
1946d61e6649SAlexander Langer# PCI Ethernet NICs that use the common MII bus controller code.
1947ba26d470SStanislav Sedovdevice		ae		# Attansic/Atheros L2 FastEthernet
1948cfef026aSPyun YongHyeondevice		age		# Attansic/Atheros L1 Gigabit Ethernet
1949d68875ebSPyun YongHyeondevice		alc		# Atheros AR8131/AR8132 Ethernet
19503c6e15bcSPyun YongHyeondevice		ale		# Atheros AR8121/AR8113/AR8114 Ethernet
1951343ed0a8SJohn Baldwindevice		bce		# Broadcom BCM5706/BCM5708 Gigabit Ethernet
1952343ed0a8SJohn Baldwindevice		bfe		# Broadcom BCM440x 10/100 Ethernet
1953343ed0a8SJohn Baldwindevice		bge		# Broadcom BCM570xx Gigabit Ethernet
1954119051cbSMarius Strobldevice		cas		# Sun Cassini/Cassini+ and NS DP83065 Saturn
1955d61e6649SAlexander Langerdevice		dc		# DEC/Intel 21143 and various workalikes
19564d52a575SXin LIdevice		et		# Agere ET1310 10/100/Gigabit Ethernet
19574664a8d5SJonathan Lemondevice		fxp		# Intel EtherExpress PRO/100B (82557, 82558)
19584664a8d5SJonathan Lemonhint.fxp.0.prefer_iomap="0"
19591ed3fed7SMarius Strobldevice		gem		# Apple GMAC/Sun ERI/Sun GEM
196052c07e1cSMarius Strobldevice		hme		# Sun HME (Happy Meal Ethernet)
19610587cad8SPyun YongHyeondevice		jme		# JMicron JMC250 Gigabit/JMC260 Fast Ethernet
1962343ed0a8SJohn Baldwindevice		lge		# Level 1 LXT1001 gigabit Ethernet
1963c9c8bf05SHans Petter Selaskydevice		mlxfw		# Mellanox firmware update module
196422f2c49aSHans Petter Selaskydevice		mlx5		# Shared code module between IB and Ethernet
196522f2c49aSHans Petter Selaskydevice		mlx5en		# Mellanox ConnectX-4 and ConnectX-4 LX
19660587cad8SPyun YongHyeondevice		msk		# Marvell/SysKonnect Yukon II Gigabit Ethernet
1967d3d67116SMaxim Sobolevdevice		my		# Myson Fast Ethernet (MTD80X, MTD89X)
1968343ed0a8SJohn Baldwindevice		nge		# NatSemi DP83820 gigabit Ethernet
19690587cad8SPyun YongHyeondevice		re		# RealTek 8139C+/8169/8169S/8110S
1970d61e6649SAlexander Langerdevice		rl		# RealTek 8129/8139
1971d193ed0bSPyun YongHyeondevice		sge		# Silicon Integrated Systems SiS190/191
1972d61e6649SAlexander Langerdevice		sis		# Silicon Integrated Systems SiS 900/SiS 7016
1973343ed0a8SJohn Baldwindevice		sk		# SysKonnect SK-984x & SK-982x gigabit Ethernet
1974d61e6649SAlexander Langerdevice		ste		# Sundance ST201 (D-Link DFE-550TX)
19750587cad8SPyun YongHyeondevice		stge		# Sundance/Tamarack TC9021 gigabit Ethernet
1976d61e6649SAlexander Langerdevice		vr		# VIA Rhine, Rhine II
19772608aefcSPyun YongHyeondevice		vte		# DM&P Vortex86 RDC R6040 Fast Ethernet
1978d61e6649SAlexander Langerdevice		xl		# 3Com 3c90x (``Boomerang'', ``Cyclone'')
1979d61e6649SAlexander Langer
1980c75f49f7SKonstantin Belousov# PCI/PCI-X/PCIe Ethernet NICs that use iflib infrastructure
1981c75f49f7SKonstantin Belousovdevice		iflib
1982c75f49f7SKonstantin Belousovdevice		em		# Intel Pro/1000 Gigabit Ethernet
1983c75f49f7SKonstantin Belousovdevice		ix		# Intel Pro/10Gbe PCIE Ethernet
1984c75f49f7SKonstantin Belousovdevice		ixv		# Intel Pro/10Gbe PCIE Ethernet VF
1985c75f49f7SKonstantin Belousov
1986d61e6649SAlexander Langer# PCI Ethernet NICs.
19877f687043SJohn Baldwindevice		cxgb		# Chelsio T3 10 Gigabit Ethernet
19887f687043SJohn Baldwindevice		cxgb_t3fw	# Chelsio T3 10 Gigabit Ethernet firmware
1989a74031a5SJohn Baldwindevice		cxgbe		# Chelsio T4-T6 1/10/25/40/100 Gigabit Ethernet
1990a74031a5SJohn Baldwindevice		cxgbev		# Chelsio T4-T6 Virtual Functions
199144ac0964SMarius Strobldevice		le		# AMD Am7900 LANCE and Am79C9xx PCnet
1992f9ae0280SAndrew Gallatindevice		mxge		# Myricom Myri-10G 10GbE NIC
19932f345d8eSLuigi Rizzodevice		oce		# Emulex 10 GbE (OneConnect Ethernet)
19946e535f6eSRemko Lodderdevice		ti		# Alteon Networks Tigon I/II gigabit Ethernet
1995d61e6649SAlexander Langer
1996390cee87SJohn Baldwin# PCI IEEE 802.11 Wireless NICs
1997390cee87SJohn Baldwindevice		ath		# Atheros pci/cardbus NIC's
1998390cee87SJohn Baldwindevice		ath_hal		# pci/cardbus chip support
1999390cee87SJohn Baldwin#device		ath_ar5210	# AR5210 chips
2000390cee87SJohn Baldwin#device		ath_ar5211	# AR5211 chips
2001390cee87SJohn Baldwin#device		ath_ar5212	# AR5212 chips
2002390cee87SJohn Baldwin#device		ath_rf2413
2003390cee87SJohn Baldwin#device		ath_rf2417
2004390cee87SJohn Baldwin#device		ath_rf2425
2005390cee87SJohn Baldwin#device		ath_rf5111
2006390cee87SJohn Baldwin#device		ath_rf5112
2007390cee87SJohn Baldwin#device		ath_rf5413
2008390cee87SJohn Baldwin#device		ath_ar5416	# AR5416 chips
2009bc391cb2SWarner Losh# All of the AR5212 parts have a problem when paired with the AR71xx
2010bc391cb2SWarner Losh# CPUS.  These parts have a bug that triggers a fatal bus error on the AR71xx
2011bc391cb2SWarner Losh# only.  Details of the exact nature of the bug are sketchy, but some can be
2012bc391cb2SWarner Losh# found at https://forum.openwrt.org/viewtopic.php?pid=70060 on pages 4, 5 and
2013bc391cb2SWarner Losh# 6.  This option enables this workaround.  There is a performance penalty
2014bc391cb2SWarner Losh# for this work around, but without it things don't work at all.  The DMA
2015bc391cb2SWarner Losh# from the card usually bursts 128 bytes, but on the affected CPUs, only
2016bc391cb2SWarner Losh# 4 are safe.
2017bc391cb2SWarner Loshoptions	   	AH_RXCFG_SDMAMW_4BYTES
2018390cee87SJohn Baldwin#device		ath_ar9160	# AR9160 chips
2019390cee87SJohn Baldwin#device		ath_ar9280	# AR9280 chips
202058c4a5a1SRui Paulo#device		ath_ar9285	# AR9285 chips
2021390cee87SJohn Baldwindevice		ath_rate_sample	# SampleRate tx rate control for ath
2022390cee87SJohn Baldwindevice		bwi		# Broadcom BCM430* BCM431*
2023eb5ef23cSWeongyo Jeongdevice		bwn		# Broadcom BCM43xx
2024d1f25d5dSBernhard Schmidtdevice		malo		# Marvell Libertas wireless NICs.
2025d1f25d5dSBernhard Schmidtdevice		mwl		# Marvell 88W8363 802.11n wireless NICs.
2026778eefa4SJohn Baldwindevice		mwlfw
2027390cee87SJohn Baldwindevice		ral		# Ralink Technology RT2500 wireless NICs.
2028b38b13d8SKevin Lodevice		rtwn		# Realtek wireless NICs
2029b38b13d8SKevin Lodevice		rtwnfw
2030390cee87SJohn Baldwin
203110a4360cSPyun YongHyeon# Use sf_buf(9) interface for jumbo buffers on ti(4) controllers.
203210a4360cSPyun YongHyeon#options 	TI_SF_BUF_JUMBO
203398cb733cSKenneth D. Merry# Turn on the header splitting option for the ti(4) driver firmware.  This
203498cb733cSKenneth D. Merry# only works for Tigon II chips, and has no effect for Tigon I chips.
203510a4360cSPyun YongHyeon# This option requires the TI_SF_BUF_JUMBO option above.
2036b590f210SPyun YongHyeon#options 	TI_JUMBO_HDRSPLIT
203798cb733cSKenneth D. Merry
20382c8f5a28SKenneth D. Merry# These two options allow manipulating the mbuf cluster size and mbuf size,
20392c8f5a28SKenneth D. Merry# respectively.  Be very careful with NIC driver modules when changing
20402c8f5a28SKenneth D. Merry# these from their default values, because that can potentially cause a
20412c8f5a28SKenneth D. Merry# mismatch between the mbuf size assumed by the kernel and the mbuf size
20422c8f5a28SKenneth D. Merry# assumed by a module.  The only driver that currently has the ability to
20432c8f5a28SKenneth D. Merry# detect a mismatch is ti(4).
20442c8f5a28SKenneth D. Merryoptions 	MCLSHIFT=12	# mbuf cluster shift in bits, 12 == 4KB
20452c8f5a28SKenneth D. Merryoptions 	MSIZE=512	# mbuf size in bytes
20462c8f5a28SKenneth D. Merry
2047c19da41eSPeter Wemm#
20480739ea1dSSeigo Tanimura# Sound drivers
2049c19da41eSPeter Wemm#
20500739ea1dSSeigo Tanimura# sound: The generic sound driver.
2051c7406082SJohn-Mark Gurney#
20520739ea1dSSeigo Tanimura
20530739ea1dSSeigo Tanimuradevice		sound
20540739ea1dSSeigo Tanimura
20550739ea1dSSeigo Tanimura#
20560739ea1dSSeigo Tanimura# snd_*: Device-specific drivers.
2057c7406082SJohn-Mark Gurney#
20589c0ef6d5SOliver Fromme# The flags of the device tell the device a bit more info about the
20597f5092f3SJohn Baldwin# device that normally is obtained through the PnP interface.
20607f5092f3SJohn Baldwin#	bit  2..0   secondary DMA channel;
20617f5092f3SJohn Baldwin#	bit  4      set if the board uses two dma channels;
20627f5092f3SJohn Baldwin#	bit 15..8   board type, overrides autodetection; leave it
20637f5092f3SJohn Baldwin#		    zero if don't know what to put in (and you don't,
20647f5092f3SJohn Baldwin#		    since this is unsupported at the moment...).
20657f5092f3SJohn Baldwin#
2066c3a730dfSJoel Dahl# snd_ad1816:		Analog Devices AD1816 ISA PnP/non-PnP.
20670739ea1dSSeigo Tanimura# snd_als4000:		Avance Logic ALS4000 PCI.
2068d9bde1adSAriff Abdullah# snd_atiixp:		ATI IXP 200/300/400 PCI.
20690739ea1dSSeigo Tanimura# snd_cmi:		CMedia CMI8338/CMI8738 PCI.
20700739ea1dSSeigo Tanimura# snd_cs4281:		Crystal Semiconductor CS4281 PCI.
20710739ea1dSSeigo Tanimura# snd_csa:		Crystal Semiconductor CS461x/428x PCI. (except
20720739ea1dSSeigo Tanimura#			4281)
20730739ea1dSSeigo Tanimura# snd_ds1:		Yamaha DS-1 PCI.
20740739ea1dSSeigo Tanimura# snd_emu10k1:		Creative EMU10K1 PCI and EMU10K2 (Audigy) PCI.
20750fa7ab6aSAlexander Leidinger# snd_emu10kx:		Creative SoundBlaster Live! and Audigy
20769f548240SAlexander Leidinger# snd_envy24:		VIA Envy24 and compatible, needs snd_spicds.
20779f548240SAlexander Leidinger# snd_envy24ht:		VIA Envy24HT and compatible, needs snd_spicds.
20780739ea1dSSeigo Tanimura# snd_es137x:		Ensoniq AudioPCI ES137x PCI.
2079727ded3aSJoel Dahl# snd_ess:		Ensoniq ESS ISA PnP/non-PnP, to be used in
2080727ded3aSJoel Dahl#			conjunction with snd_sbc.
20810739ea1dSSeigo Tanimura# snd_fm801:		Forte Media FM801 PCI.
20820739ea1dSSeigo Tanimura# snd_gusc:		Gravis UltraSound ISA PnP/non-PnP.
20834b8939a1SAriff Abdullah# snd_hda:		Intel High Definition Audio (Controller) and
20844b8939a1SAriff Abdullah#			compatible.
2085e4afd792SAlexander Motin# snd_hdspe:		RME HDSPe AIO and RayDAT.
208617470869SAlexander Motin# snd_ich:		Intel ICH AC'97 and some more audio controllers
2087903b2fb9SJoel Dahl#			embedded in a chipset, for example nVidia
2088903b2fb9SJoel Dahl#			nForce controllers.
20890739ea1dSSeigo Tanimura# snd_maestro:		ESS Technology Maestro-1/2x PCI.
20900739ea1dSSeigo Tanimura# snd_maestro3:		ESS Technology Maestro-3/Allegro PCI.
20910739ea1dSSeigo Tanimura# snd_mss:		Microsoft Sound System ISA PnP/non-PnP.
20920739ea1dSSeigo Tanimura# snd_neomagic:		Neomagic 256 AV/ZX PCI.
20930739ea1dSSeigo Tanimura# snd_sb16:		Creative SoundBlaster16, to be used in
20941c9c6382SRuslan Ermilov#			conjunction with snd_sbc.
20950739ea1dSSeigo Tanimura# snd_sb8:		Creative SoundBlaster (pre-16), to be used in
20961c9c6382SRuslan Ermilov#			conjunction with snd_sbc.
20970739ea1dSSeigo Tanimura# snd_sbc:		Creative SoundBlaster ISA PnP/non-PnP.
20987f5092f3SJohn Baldwin#			Supports ESS and Avance ISA chips as well.
20990739ea1dSSeigo Tanimura# snd_solo:		ESS Solo-1x PCI.
2100de8d750fSJoel Dahl# snd_spicds:		SPI codec driver, needed by Envy24/Envy24HT drivers.
2101903b2fb9SJoel Dahl# snd_t4dwave:		Trident 4DWave DX/NX PCI, Sis 7018 PCI and Acer Labs
21020739ea1dSSeigo Tanimura#			M5451 PCI.
2103de8d750fSJoel Dahl# snd_uaudio:		USB audio.
21040739ea1dSSeigo Tanimura# snd_via8233:		VIA VT8233x PCI.
21050739ea1dSSeigo Tanimura# snd_via82c686:	VIA VT82C686A PCI.
21060739ea1dSSeigo Tanimura# snd_vibes:		S3 Sonicvibes PCI.
210781bb901eSPeter Wemm
2108f37a929cSPeter Wemmdevice		snd_ad1816
2109f37a929cSPeter Wemmdevice		snd_als4000
2110d9bde1adSAriff Abdullahdevice		snd_atiixp
21110739ea1dSSeigo Tanimuradevice		snd_cmi
2112f37a929cSPeter Wemmdevice		snd_cs4281
21130739ea1dSSeigo Tanimuradevice		snd_csa
2114f37a929cSPeter Wemmdevice		snd_ds1
2115f37a929cSPeter Wemmdevice		snd_emu10k1
21160fa7ab6aSAlexander Leidingerdevice		snd_emu10kx
2117b1ff0220SAlexander Leidingerdevice		snd_envy24
21189f548240SAlexander Leidingerdevice		snd_envy24ht
2119f37a929cSPeter Wemmdevice		snd_es137x
21200739ea1dSSeigo Tanimuradevice		snd_ess
2121f37a929cSPeter Wemmdevice		snd_fm801
21220739ea1dSSeigo Tanimuradevice		snd_gusc
21234b8939a1SAriff Abdullahdevice		snd_hda
2124e4afd792SAlexander Motindevice		snd_hdspe
21250739ea1dSSeigo Tanimuradevice		snd_ich
21260739ea1dSSeigo Tanimuradevice		snd_maestro
2127f37a929cSPeter Wemmdevice		snd_maestro3
21280739ea1dSSeigo Tanimuradevice		snd_mss
21290739ea1dSSeigo Tanimuradevice		snd_neomagic
2130f37a929cSPeter Wemmdevice		snd_sb16
2131f37a929cSPeter Wemmdevice		snd_sb8
21320739ea1dSSeigo Tanimuradevice		snd_sbc
21330739ea1dSSeigo Tanimuradevice		snd_solo
21349f548240SAlexander Leidingerdevice		snd_spicds
2135f37a929cSPeter Wemmdevice		snd_t4dwave
2136de8d750fSJoel Dahldevice		snd_uaudio
2137f37a929cSPeter Wemmdevice		snd_via8233
2138f37a929cSPeter Wemmdevice		snd_via82c686
21390739ea1dSSeigo Tanimuradevice		snd_vibes
2140c19da41eSPeter Wemm
21411c9c6382SRuslan Ermilov# For non-PnP sound cards:
2142673974d9SRuslan Ermilovhint.pcm.0.at="isa"
2143673974d9SRuslan Ermilovhint.pcm.0.irq="10"
2144673974d9SRuslan Ermilovhint.pcm.0.drq="1"
2145673974d9SRuslan Ermilovhint.pcm.0.flags="0x0"
2146673974d9SRuslan Ermilovhint.sbc.0.at="isa"
2147673974d9SRuslan Ermilovhint.sbc.0.port="0x220"
2148673974d9SRuslan Ermilovhint.sbc.0.irq="5"
2149673974d9SRuslan Ermilovhint.sbc.0.drq="1"
2150673974d9SRuslan Ermilovhint.sbc.0.flags="0x15"
2151673974d9SRuslan Ermilovhint.gusc.0.at="isa"
2152673974d9SRuslan Ermilovhint.gusc.0.port="0x220"
2153673974d9SRuslan Ermilovhint.gusc.0.irq="5"
2154673974d9SRuslan Ermilovhint.gusc.0.drq="1"
2155673974d9SRuslan Ermilovhint.gusc.0.flags="0x13"
21567f5092f3SJohn Baldwin
21576a8d6623SGarrett Wollman#
215818fe4678SAriff Abdullah# Following options are intended for debugging/testing purposes:
215918fe4678SAriff Abdullah#
216018fe4678SAriff Abdullah# SND_DEBUG                    Enable extra debugging code that includes
216118fe4678SAriff Abdullah#                              sanity checking and possible increase of
216218fe4678SAriff Abdullah#                              verbosity.
216318fe4678SAriff Abdullah#
2164d51e8487SJosh Paetzel# SND_DIAGNOSTIC               Similar in a spirit of INVARIANTS/DIAGNOSTIC,
216518fe4678SAriff Abdullah#                              zero tolerance against inconsistencies.
216618fe4678SAriff Abdullah#
216718fe4678SAriff Abdullah# SND_FEEDER_MULTIFORMAT       By default, only 16/32 bit feeders are compiled
216818fe4678SAriff Abdullah#                              in. This options enable most feeder converters
216918fe4678SAriff Abdullah#                              except for 8bit. WARNING: May bloat the kernel.
217018fe4678SAriff Abdullah#
217118fe4678SAriff Abdullah# SND_FEEDER_FULL_MULTIFORMAT  Ditto, but includes 8bit feeders as well.
217218fe4678SAriff Abdullah#
217318fe4678SAriff Abdullah# SND_FEEDER_RATE_HP           (feeder_rate) High precision 64bit arithmetic
217418fe4678SAriff Abdullah#                              as much as possible (the default trying to
217518fe4678SAriff Abdullah#                              avoid it). Possible slowdown.
217618fe4678SAriff Abdullah#
217718fe4678SAriff Abdullah# SND_PCM_64                   (Only applicable for i386/32bit arch)
217818fe4678SAriff Abdullah#                              Process 32bit samples through 64bit
217918fe4678SAriff Abdullah#                              integer/arithmetic. Slight increase of dynamic
218018fe4678SAriff Abdullah#                              range at a cost of possible slowdown.
218118fe4678SAriff Abdullah#
218218fe4678SAriff Abdullah# SND_OLDSTEREO                Only 2 channels are allowed, effectively
218318fe4678SAriff Abdullah#                              disabling multichannel processing.
218418fe4678SAriff Abdullah#
218518fe4678SAriff Abdullahoptions		SND_DEBUG
218618fe4678SAriff Abdullahoptions		SND_DIAGNOSTIC
218718fe4678SAriff Abdullahoptions		SND_FEEDER_MULTIFORMAT
218818fe4678SAriff Abdullahoptions		SND_FEEDER_FULL_MULTIFORMAT
218918fe4678SAriff Abdullahoptions		SND_FEEDER_RATE_HP
219018fe4678SAriff Abdullahoptions		SND_PCM_64
219118fe4678SAriff Abdullahoptions		SND_OLDSTEREO
219218fe4678SAriff Abdullah
219318fe4678SAriff Abdullah#
2194567e21c2SBruce Evans# Miscellaneous hardware:
21956a8d6623SGarrett Wollman#
2196603d67aeSRink Springer# cmx: OmniKey CardMan 4040 pccard smartcard reader
2197657e73c4SPeter Dufault
2198603d67aeSRink Springerdevice		cmx
2199a800f455SJulian Elischer
2200eeb706c0SJustin T. Gibbs#
22016e818956SDavid E. O'Brien# PC Card/PCMCIA and Cardbus
22026e818956SDavid E. O'Brien#
22035bcb64f2SWarner Losh# cbb: pci/cardbus bridge implementing YENTA interface
22046e818956SDavid E. O'Brien# pccard: pccard slots
22056e818956SDavid E. O'Brien# cardbus: cardbus slots
22066e818956SDavid E. O'Briendevice		cbb
22076e818956SDavid E. O'Briendevice		pccard
22086e818956SDavid E. O'Briendevice		cardbus
22096e818956SDavid E. O'Brien
22106e818956SDavid E. O'Brien#
22115bcb64f2SWarner Losh# MMC/SD
22125bcb64f2SWarner Losh#
2213831f5dcfSAlexander Motin# mmc 		MMC/SD bus
2214831f5dcfSAlexander Motin# mmcsd		MMC/SD memory card
2215831f5dcfSAlexander Motin# sdhci		Generic PCI SD Host Controller
2216831f5dcfSAlexander Motin#
2217831f5dcfSAlexander Motindevice		mmc
2218831f5dcfSAlexander Motindevice		mmcsd
2219831f5dcfSAlexander Motindevice		sdhci
22205bcb64f2SWarner Losh
22215bcb64f2SWarner Losh#
22228afa373cSNicolas Souchu# SMB bus
22238afa373cSNicolas Souchu#
22243c5656bfSArchie Cobbs# System Management Bus support is provided by the 'smbus' device.
22253c5656bfSArchie Cobbs# Access to the SMBus device is via the 'smb' device (/dev/smb*),
22263c5656bfSArchie Cobbs# which is a child of the 'smbus' device.
22278afa373cSNicolas Souchu#
22288afa373cSNicolas Souchu# Supported devices:
22294d5f30e0SRuslan Ermilov# smb		standard I/O through /dev/smb*
22308afa373cSNicolas Souchu#
22313c5656bfSArchie Cobbs# Supported SMB interfaces:
223228ebb692SNicolas Souchu# iicsmb	I2C to SMB bridge with any iicbus interface
22337f5092f3SJohn Baldwin# intpm		Intel PIIX4 (82371AB, 82443MX) Power Management Unit
22347f5092f3SJohn Baldwin# alpm		Acer Aladdin-IV/V/Pro2 Power Management Unit
22357f5092f3SJohn Baldwin# ichsmb	Intel ICH SMBus controller chips (82801AA, 82801AB, 82801BA)
22367f5092f3SJohn Baldwin# viapm		VIA VT82C586B/596B/686A and VT8233 Power Management Unit
2237b1acc4a2SMurray Stokely# amdpm		AMD 756 Power Management Unit
22384d5f30e0SRuslan Ermilov# amdsmb	AMD 8111 SMBus 2.0 Controller
223944e6ce01SNicolas Souchu# nfpm		NVIDIA nForce Power Management Unit
22404d5f30e0SRuslan Ermilov# nfsmb		NVIDIA nForce2/3/4 MCP SMBus 2.0 Controller
22410572ccaaSJim Harris# ismt		Intel SMBus 2.0 controller chips (on Atom S1200, C2000)
22428afa373cSNicolas Souchu#
2243c9953c3bSPeter Wemmdevice		smbus		# Bus support, required for smb below.
22443c5656bfSArchie Cobbs
22457f5092f3SJohn Baldwindevice		intpm
22467f5092f3SJohn Baldwindevice		alpm
22477f5092f3SJohn Baldwindevice		ichsmb
22487f5092f3SJohn Baldwindevice		viapm
224944e6ce01SNicolas Souchudevice		amdpm
22504d5f30e0SRuslan Ermilovdevice		amdsmb
225144e6ce01SNicolas Souchudevice		nfpm
22524d5f30e0SRuslan Ermilovdevice		nfsmb
22530572ccaaSJim Harrisdevice		ismt
22547f5092f3SJohn Baldwin
2255c9953c3bSPeter Wemmdevice		smb
22568afa373cSNicolas Souchu
22574afdfe97SAndriy Gapon# SMBus peripheral devices
22588afa373cSNicolas Souchu#
2259dcd935dfSRavi Pokala# jedec_dimm	Asset and temperature reporting for DDR3 and DDR4 DIMMs
22604afdfe97SAndriy Gapon#
2261dcd935dfSRavi Pokaladevice		jedec_dimm
22624afdfe97SAndriy Gapon
22638afa373cSNicolas Souchu# I2C Bus
22648afa373cSNicolas Souchu#
22658afa373cSNicolas Souchu# Philips i2c bus support is provided by the `iicbus' device.
22668afa373cSNicolas Souchu#
22678afa373cSNicolas Souchu# Supported devices:
22688afa373cSNicolas Souchu# ic	i2c network interface
22698afa373cSNicolas Souchu# iic	i2c standard io
2270f7d09fbaSNicolas Souchu# iicsmb i2c to smb bridge. Allow i2c i/o with smb commands.
22711ab68cbbSJayachandran C.# iicoc simple polling driver for OpenCores I2C controller
22728afa373cSNicolas Souchu#
227328ebb692SNicolas Souchu# Other:
2274daba5aceSWarner Losh# iicbb	generic I2C bit-banging code (needed by lpbb)
22758afa373cSNicolas Souchu#
2276c9953c3bSPeter Wemmdevice		iicbus		# Bus support, required for ic/iic/iicsmb below.
22776f3bd9a6SIan Leporedevice		iicbb		# bitbang driver; implements i2c on a pair of gpio pins
22788afa373cSNicolas Souchu
2279c9953c3bSPeter Wemmdevice		ic
22806f3bd9a6SIan Leporedevice		iic		# userland access to i2c slave devices via ioctl(8)
2281c9953c3bSPeter Wemmdevice		iicsmb		# smb over i2c bridge
22821ab68cbbSJayachandran C.device		iicoc		# OpenCores I2C controller support
22838afa373cSNicolas Souchu
2284422d05daSIan Lepore# I2C bus multiplexer (mux) devices
2285422d05daSIan Leporedevice		iicmux		# i2c mux core driver
2286422d05daSIan Leporedevice		iic_gpiomux	# i2c mux hardware controlled via gpio pins
2287422d05daSIan Leporedevice		ltc430x		# LTC4305 and LTC4306 i2c mux chips
2288422d05daSIan Lepore
2289286fa445SRafal Jaworowski# I2C peripheral devices
2290286fa445SRafal Jaworowski#
2291ac6a9e47SIan Leporedevice		ad7418		# Analog Devices temp and voltage sensor
22925177d294SIan Leporedevice		ads111x		# Texas Instruments ADS101x and ADS111x ADCs
229346ec180eSIan Leporedevice		ds1307		# Dallas DS1307 RTC and compatible
2294bb2e8108SIan Leporedevice		ds13rtc		# All Dallas/Maxim ds13xx chips
229546ec180eSIan Leporedevice		ds1672		# Dallas DS1672 RTC
229646ec180eSIan Leporedevice		ds3231		# Dallas DS3231 RTC + temperature
229746ec180eSIan Leporedevice		icee		# AT24Cxxx and compatible EEPROMs
2298ac6a9e47SIan Leporedevice		isl12xx		# Intersil ISL12xx RTC
229946ec180eSIan Leporedevice		lm75		# LM75 compatible temperature sensor
230046ec180eSIan Leporedevice		nxprtc		# NXP RTCs: PCA/PFC212x PCA/PCF85xx
2301ac6a9e47SIan Leporedevice		rtc8583		# Epson RTC-8583
230246ec180eSIan Leporedevice		s35390a		# Seiko Instruments S-35390A RTC
2303ac6a9e47SIan Leporedevice		sy8106a		# Silergy Corp. SY8106A buck regulator
2304ac6a9e47SIan Leporedevice		syr827		# Silergy Corp. DC/DC regulator
2305286fa445SRafal Jaworowski
2306ab4c624bSMike Smith# Parallel-Port Bus
2307ab4c624bSMike Smith#
2308ab4c624bSMike Smith# Parallel port bus support is provided by the `ppbus' device.
2309ab4c624bSMike Smith# Multiple devices may be attached to the parallel port, devices
2310ab4c624bSMike Smith# are automatically probed and attached when found.
2311ab4c624bSMike Smith#
2312ab4c624bSMike Smith# Supported devices:
2313fdf94d1aSNicolas Souchu# lpt	Parallel Printer
231446f3ff79SMike Smith# plip	Parallel network interface
2315fdf94d1aSNicolas Souchu# ppi	General-purpose I/O ("Geek Port") + IEEE1284 I/O
2316f7d09fbaSNicolas Souchu# pps	Pulse per second Timing Interface
231728ebb692SNicolas Souchu# lpbb	Philips official parallel port I2C bit-banging interface
23181caef332SWojciech A. Koszek# pcfclock Parallel port clock driver.
2319ab4c624bSMike Smith#
2320ab4c624bSMike Smith# Supported interfaces:
2321ab4c624bSMike Smith# ppc	ISA-bus parallel port interfaces.
2322ab4c624bSMike Smith#
2323ef8f7626SNicolas Souchu
23240f210c92SNicolas Souchuoptions 	PPC_PROBE_CHIPSET # Enable chipset specific detection
23250f210c92SNicolas Souchu				  # (see flags in ppc(4))
23265895e3c8SPeter Wemmoptions 	DEBUG_1284	# IEEE1284 signaling protocol debug
23279d5abbddSJens Schweikhardtoptions 	PERIPH_1284	# Makes your computer act as an IEEE1284
2328ef8f7626SNicolas Souchu				# compliant peripheral
23295895e3c8SPeter Wemmoptions 	DONTPROBE_1284	# Avoid boot detection of PnP parallel devices
23305895e3c8SPeter Wemmoptions 	LPT_DEBUG	# Printer driver debug
23315895e3c8SPeter Wemmoptions 	PPC_DEBUG	# Parallel chipset level debug
23325895e3c8SPeter Wemmoptions 	PLIP_DEBUG	# Parallel network IP interface debug
23333b2d592cSJordan K. Hubbardoptions 	PCFCLOCK_VERBOSE         # Verbose pcfclock driver
23343b2d592cSJordan K. Hubbardoptions 	PCFCLOCK_MAX_RETRIES=5   # Maximum read tries (default 10)
2335ef8f7626SNicolas Souchu
2336f71c01ccSPeter Wemmdevice		ppc
2337f71c01ccSPeter Wemmhint.ppc.0.at="isa"
2338f71c01ccSPeter Wemmhint.ppc.0.irq="7"
23390d31b179SPeter Wemmdevice		ppbus
23400d31b179SPeter Wemmdevice		lpt
23410d31b179SPeter Wemmdevice		plip
23420d31b179SPeter Wemmdevice		ppi
23430d31b179SPeter Wemmdevice		pps
23440d31b179SPeter Wemmdevice		lpbb
23450d31b179SPeter Wemmdevice		pcfclock
2346ab4c624bSMike Smith
23476e36309dSIan Lepore# General Purpose I/O pins
2348446e035cSRuslan Bukindevice		dwgpio		# Synopsys DesignWare APB GPIO Controller
23496e36309dSIan Leporedevice  	gpio		# gpio interfaces and bus support
23506e36309dSIan Leporedevice  	gpiobacklight	# sysctl control of gpio-based backlight
23516e36309dSIan Leporedevice  	gpioiic		# i2c via gpio bitbang
23526e36309dSIan Leporedevice  	gpiokeys	# kbd(4) glue for gpio-based key input
23536e36309dSIan Leporedevice  	gpioled		# led(4) gpio glue
23546e36309dSIan Leporedevice  	gpiopower	# event handler for gpio-based powerdown
23556e36309dSIan Leporedevice  	gpiopps		# Pulse per second input from gpio pin
23566e36309dSIan Leporedevice  	gpioregulator	# extres/regulator glue for gpio pin
23576e36309dSIan Leporedevice  	gpiospi		# SPI via gpio bitbang
23586e36309dSIan Leporedevice  	gpioths		# 1-wire temp/humidity sensor on gpio pin
23596e36309dSIan Lepore
23600bab2b6eSIan Lepore# Pulse width modulation
23610bab2b6eSIan Leporedevice  	pwmbus		# pwm interface and bus support
23620bab2b6eSIan Leporedevice  	pwmc		# userland control access to pwm outputs
23630bab2b6eSIan Lepore
2364f45757caSChristian Brueffer#
2365f45757caSChristian Brueffer# Etherswitch framework and drivers
2366f45757caSChristian Brueffer#
2367f45757caSChristian Brueffer# etherswitch	The etherswitch(4) framework
2368f45757caSChristian Brueffer# miiproxy	Proxy device for miibus(4) functionality
2369f45757caSChristian Brueffer#
2370f45757caSChristian Brueffer# Switch hardware support:
2371f45757caSChristian Brueffer# arswitch	Atheros switches
2372f45757caSChristian Brueffer# ip17x 	IC+ 17x family switches
2373f45757caSChristian Brueffer# rtl8366r	Realtek RTL8366 switches
2374f45757caSChristian Brueffer# ukswitch	Multi-PHY switches
2375f45757caSChristian Brueffer#
2376f45757caSChristian Bruefferdevice		etherswitch
2377f45757caSChristian Bruefferdevice		miiproxy
2378f45757caSChristian Bruefferdevice		arswitch
2379f45757caSChristian Bruefferdevice		ip17x
2380f45757caSChristian Bruefferdevice		rtl8366rb
2381f45757caSChristian Bruefferdevice		ukswitch
2382f45757caSChristian Brueffer
23830ac40133SBrian Somers# Kernel BOOTP support
23840ac40133SBrian Somers
23850ac40133SBrian Somersoptions 	BOOTP		# Use BOOTP to obtain IP address/hostname
2386c15882f0SRick Macklem				# Requires NFSCL and NFS_ROOT
23870ac40133SBrian Somersoptions 	BOOTP_NFSROOT	# NFS mount root filesystem using BOOTP info
23880ac40133SBrian Somersoptions 	BOOTP_NFSV3	# Use NFS v3 to NFS mount root
23890ac40133SBrian Somersoptions 	BOOTP_COMPAT	# Workaround for broken bootp daemons.
23900ac40133SBrian Somersoptions 	BOOTP_WIRED_TO=fxp0 # Use interface fxp0 for BOOTP
2391eead3ae9SBenno Riceoptions 	BOOTP_BLOCKSIZE=8192 # Override NFS block size
2392432aad0eSTor Egge
2393d94f38acSEivind Eklund#
2394d626b50bSMike Karels# Enable software watchdog routines, even if hardware watchdog is present.
2395d626b50bSMike Karels# By default, software watchdog timer is enabled only if no hardware watchdog
2396d626b50bSMike Karels# is present.
2397370c3cb5SSean Kelly#
23984103b765SPoul-Henning Kampoptions 	SW_WATCHDOG
2399370c3cb5SSean Kelly
2400370c3cb5SSean Kelly#
2401f7829d0dSAttilio Rao# Add the software deadlock resolver thread.
2402f7829d0dSAttilio Rao#
2403f7829d0dSAttilio Raooptions 	DEADLKRES
2404f7829d0dSAttilio Rao
2405f7829d0dSAttilio Rao#
2406b99d6e6fSDavid Schultz# Disable swapping of stack pages.  This option removes all
24074e0ee531SMike Barcroft# code which actually performs swapping, so it's not possible to turn
24084e0ee531SMike Barcroft# it back on at run-time.
2409c796cfa1SAndrzej Bialecki#
2410c796cfa1SAndrzej Bialecki# This is sometimes usable for systems which don't have any swap space
24113c4c0efdSBryan Drewery# (see also sysctl "vm.disable_swapspace_pageouts")
2412c796cfa1SAndrzej Bialecki#
241319dde963SPeter Wemm#options 	NO_SWAPPING
2414c796cfa1SAndrzej Bialecki
24159dab0776SDavid Greenman# Set the number of sf_bufs to allocate. sf_bufs are virtual buffers
24169dab0776SDavid Greenman# for sendfile(2) that are used to map file VM pages, and normally
24179dab0776SDavid Greenman# default to a quantity that is roughly 16*MAXUSERS+512. You would
24189dab0776SDavid Greenman# typically want about 4 of these for each simultaneous file send.
24199dab0776SDavid Greenman#
24205895e3c8SPeter Wemmoptions 	NSFBUFS=1024
24219dab0776SDavid Greenman
242215a1057cSEivind Eklund#
2423053a2b61SEivind Eklund# Enable extra debugging code for locks.  This stores the filename and
24249c0ef6d5SOliver Fromme# line of whatever acquired the lock in the lock itself, and changes a
2425053a2b61SEivind Eklund# number of function calls to pass around the relevant data.  This is
24262c048c4aSBryan Drewery# not at all useful unless you are debugging lock code.  Note that
24272c048c4aSBryan Drewery# modules should be recompiled as this option modifies KBI.
242815a1057cSEivind Eklund#
242915a1057cSEivind Eklundoptions 	DEBUG_LOCKS
243015a1057cSEivind Eklund
243126086a03SPeter Wemm
243226086a03SPeter Wemm#####################################################################
24331d33cf3dSNick Hibma# USB support
24341d33cf3dSNick Hibma# UHCI controller
2435c9953c3bSPeter Wemmdevice		uhci
24361d33cf3dSNick Hibma# OHCI controller
2437c9953c3bSPeter Wemmdevice		ohci
2438ca3acad1SBernd Walter# EHCI controller
2439ca3acad1SBernd Walterdevice		ehci
2440857508a3SAndrew Thompson# XHCI controller
2441857508a3SAndrew Thompsondevice		xhci
244239e5901eSTakanori Watanabe# SL811 Controller
2443b92755d1SAndrew Thompson#device		slhci
24441d33cf3dSNick Hibma# General USB code (mandatory for USB)
2445c9953c3bSPeter Wemmdevice		usb
24461d33cf3dSNick Hibma#
2447b5ea1f0cSNick Hibma# USB Double Bulk Pipe devices
2448b5ea1f0cSNick Hibmadevice		udbp
2449d1233ab3SBruce Evans# USB Fm Radio
2450d1233ab3SBruce Evansdevice		ufm
24512d45d793SHans Petter Selasky# USB temperature meter
24522d45d793SHans Petter Selaskydevice		ugold
24536bd03b20SKevin Lo# USB LED
24546bd03b20SKevin Lodevice		uled
2455f26c33d2SNick Hibma# Human Interface Device (anything with buttons and dials)
2456c9953c3bSPeter Wemmdevice		uhid
24571d33cf3dSNick Hibma# USB keyboard
2458c9953c3bSPeter Wemmdevice		ukbd
24591d33cf3dSNick Hibma# USB printer
2460c9953c3bSPeter Wemmdevice		ulpt
246131615ef7SRebecca Cran# USB mass storage driver (Requires scbus and da)
2462c9953c3bSPeter Wemmdevice		umass
246331615ef7SRebecca Cran# USB mass storage driver for device-side mode
246431615ef7SRebecca Crandevice		usfs
2465ce17576aSScott Long# USB support for Belkin F5U109 and Magic Control Technology serial adapters
2466ce17576aSScott Longdevice		umct
2467e9fb12d3SNick Hibma# USB modem support
2468e9fb12d3SNick Hibmadevice		umodem
2469f26c33d2SNick Hibma# USB mouse
2470c9953c3bSPeter Wemmdevice		ums
2471eed447b5SHans Petter Selasky# USB touchpad(s)
2472eed447b5SHans Petter Selaskydevice		atp
2473eed447b5SHans Petter Selaskydevice		wsp
2474f25a8a01SGleb Smirnoff# eGalax USB touch screen
2475f25a8a01SGleb Smirnoffdevice		uep
24761c9c6382SRuslan Ermilov# Diamond Rio 500 MP3 player
2477e2dbd15fSNick Hibmadevice		urio
2478d1233ab3SBruce Evans#
2479916e6e02SJosef Karthauser# USB serial support
2480916e6e02SJosef Karthauserdevice		ucom
2481fe75118bSNick Hibma# USB support for 3G modem cards by Option, Novatel, Huawei and Sierra
2482483b9e47SNick Hibmadevice		u3g
24839aab0d96SMaxim Konovalov# USB support for Technologies ARK3116 based serial adapters
24849aab0d96SMaxim Konovalovdevice		uark
2485d1233ab3SBruce Evans# USB support for Belkin F5U103 and compatible serial adapters
2486d1233ab3SBruce Evansdevice		ubsa
248748b68edfSJosef Karthauser# USB support for serial adapters based on the FT8U100AX and FT8U232AM
248848b68edfSJosef Karthauserdevice		uftdi
2489c5286e11STakanori Watanabe# USB support for some Windows CE based serial communication.
2490c5286e11STakanori Watanabedevice		uipaq
249148b68edfSJosef Karthauser# USB support for Prolific PL-2303 serial adapters
2492916e6e02SJosef Karthauserdevice		uplcom
24932e7328e7SRink Springer# USB support for Silicon Laboratories CP2101/CP2102 based USB serial adapters
24942e7328e7SRink Springerdevice		uslcom
249548b68edfSJosef Karthauser# USB Visor and Palm devices
249648b68edfSJosef Karthauserdevice		uvisor
2497d1233ab3SBruce Evans# USB serial support for DDI pocket's PHS
2498d1233ab3SBruce Evansdevice		uvscom
2499f26c33d2SNick Hibma#
2500ff6b30b9SKevin Lo# USB ethernet support
2501ff6b30b9SKevin Lodevice		uether
2502ed63a7aaSBill Paul# ADMtek USB ethernet. Supports the LinkSys USB100TX,
2503d04bb221SBill Paul# the Billionton USB100, the Melco LU-ATX, the D-Link DSB-650TX
2504d04bb221SBill Paul# and the SMC 2202USB. Also works with the ADMtek AN986 Pegasus
2505d04bb221SBill Paul# eval board.
2506c9953c3bSPeter Wemmdevice		aue
2507bf029145SRobert Watson
2508bf029145SRobert Watson# ASIX Electronics AX88172 USB 2.0 ethernet driver. Used in the
2509bf029145SRobert Watson# LinkSys USB200M and various other adapters.
2510bf029145SRobert Watsondevice		axe
251179eb99dfSLi-Wen Hsu# ASIX Electronics AX88178A/AX88179 USB 2.0/3.0 gigabit ethernet driver.
251279eb99dfSLi-Wen Hsudevice		axge
2513bf029145SRobert Watson
2514dfd1e98eSBill Paul#
25156bcf0032SMaxim Sobolev# Devices which communicate using Ethernet over USB, particularly
25166bcf0032SMaxim Sobolev# Communication Device Class (CDC) Ethernet specification. Supports
25176bcf0032SMaxim Sobolev# Sharp Zaurus PDAs, some DOCSIS cable modems and so on.
25186bcf0032SMaxim Sobolevdevice		cdce
25196bcf0032SMaxim Sobolev#
252001779872SBill Paul# CATC USB-EL1201A USB ethernet. Supports the CATC Netmate
252101779872SBill Paul# and Netmate II, and the Belkin F5U111.
2522c9953c3bSPeter Wemmdevice		cue
252301779872SBill Paul#
2524dfd1e98eSBill Paul# Kawasaki LSI ethernet. Supports the LinkSys USB10T,
2525d04bb221SBill Paul# Entrega USB-NET-E45, Peracom Ethernet Adapter, the
2526d04bb221SBill Paul# 3Com 3c19250, the ADS Technologies USB-10BT, the ATen UC10T,
252701779872SBill Paul# the Netgear EA101, the D-Link DSB-650, the SMC 2102USB
252801779872SBill Paul# and 2104USB, and the Corega USB-T.
2529c9953c3bSPeter Wemmdevice		kue
253011e04b05SShunsuke Akiyama#
253111e04b05SShunsuke Akiyama# RealTek RTL8150 USB to fast ethernet. Supports the Melco LUA-KTX
253211e04b05SShunsuke Akiyama# and the GREEN HOUSE GH-USB100B.
253311e04b05SShunsuke Akiyamadevice		rue
2534cdd40f3bSMIHIRA Sanpei Yoshiro#
2535cdd40f3bSMIHIRA Sanpei Yoshiro# Davicom DM9601E USB to fast ethernet. Supports the Corega FEther USB-TXC.
2536cdd40f3bSMIHIRA Sanpei Yoshirodevice		udav
2537941e2863SAndrew Thompson#
2538a24d62b5SKevin Lo# RealTek RTL8152/RTL8153 USB Ethernet driver
2539e1b74f21SKevin Lodevice		ure
2540e1b74f21SKevin Lo#
254122445463SKevin Lo# Moschip MCS7730/MCS7840 USB to fast ethernet. Supports the Sitecom LN030.
254222445463SKevin Lodevice		mos
254322445463SKevin Lo#
2544941e2863SAndrew Thompson# HSxPA devices from Option N.V
2545941e2863SAndrew Thompsondevice		uhso
2546cdd40f3bSMIHIRA Sanpei Yoshiro
254731d98677SRui Paulo# Realtek RTL8188SU/RTL8191SU/RTL8192SU wireless driver
254831d98677SRui Paulodevice		rsu
25498a4cd00aSWarner Losh#
255071aa1d32SSam Leffler# Ralink Technology RT2501USB/RT2601USB wireless driver
255171aa1d32SSam Lefflerdevice		rum
255293393dfdSAndrew Thompson# Ralink Technology RT2700U/RT2800U/RT3000U wireless driver
255393393dfdSAndrew Thompsondevice		run
25548a4cd00aSWarner Losh#
255571aa1d32SSam Leffler# Atheros AR5523 wireless driver
255671aa1d32SSam Lefflerdevice		uath
255771aa1d32SSam Leffler#
2558d1f25d5dSBernhard Schmidt# Conexant/Intersil PrismGT wireless driver
2559d1f25d5dSBernhard Schmidtdevice		upgt
2560d1f25d5dSBernhard Schmidt#
256171aa1d32SSam Leffler# Ralink Technology RT2500USB wireless driver
25628a4cd00aSWarner Loshdevice		ural
25638a4cd00aSWarner Losh#
256429311227SHans Petter Selasky# RNDIS USB ethernet driver
256529311227SHans Petter Selaskydevice		urndis
25665aaea652SKevin Lo# Realtek RTL8187B/L wireless driver
25675aaea652SKevin Lodevice		urtw
25685aaea652SKevin Lo#
256971aa1d32SSam Leffler# ZyDas ZD1211/ZD1211B wireless driver
257071aa1d32SSam Lefflerdevice		zyd
257145b395cdSGleb Smirnoff#
257245b395cdSGleb Smirnoff# Sierra USB wireless driver
257345b395cdSGleb Smirnoffdevice		usie
2574f26c33d2SNick Hibma
25758a4cd00aSWarner Losh#
2576f26c33d2SNick Hibma# debugging options for the USB subsystem
25771d33cf3dSNick Hibma#
25781d33cf3dSNick Hibmaoptions 	USB_DEBUG
2579fe75118bSNick Hibmaoptions 	U3G_DEBUG
2580f26c33d2SNick Hibma
25816e8394b8SKazutaka YOKOTA# options for ukbd:
25826e8394b8SKazutaka YOKOTAoptions 	UKBD_DFLT_KEYMAP	# specify the built-in keymap
2583440f1cf7SBruce Evansmakeoptions	UKBD_DFLT_KEYMAP=jp.106
25846e8394b8SKazutaka YOKOTA
2585565f53bbSShunsuke Akiyama# options for uplcom:
25863c7c6c12SMike Pritchardoptions 	UPLCOM_INTR_INTERVAL=100	# interrupt pipe interval
2587565f53bbSShunsuke Akiyama						# in milliseconds
2588565f53bbSShunsuke Akiyama
258920280807SShunsuke Akiyama# options for uvscom:
259020280807SShunsuke Akiyamaoptions 	UVSCOM_DEFAULT_OPKTSIZE=8	# default output packet size
25913c7c6c12SMike Pritchardoptions 	UVSCOM_INTR_INTERVAL=100	# interrupt pipe interval
2592565f53bbSShunsuke Akiyama						# in milliseconds
259320280807SShunsuke Akiyama
25948b7ce2ffSSam Leffler#####################################################################
2595869093b1SHidetoshi Shimokawa# FireWire support
25967d2ba89bSJohn Baldwin
2597869093b1SHidetoshi Shimokawadevice		firewire	# FireWire bus code
25987d2ba89bSJohn Baldwindevice		sbp		# SCSI over Firewire (Requires scbus and da)
259979acdabbSHidetoshi Shimokawadevice		sbp_targ	# SBP-2 Target mode  (Requires scbus and targ)
2600869093b1SHidetoshi Shimokawadevice		fwe		# Ethernet over FireWire (non-standard!)
26011c9c6382SRuslan Ermilovdevice		fwip		# IP over FireWire (RFC2734 and RFC3146)
2602869093b1SHidetoshi Shimokawa
2603869093b1SHidetoshi Shimokawa#####################################################################
2604869093b1SHidetoshi Shimokawa# dcons support (Dumb Console Device)
2605869093b1SHidetoshi Shimokawa
2606869093b1SHidetoshi Shimokawadevice		dcons			# dumb console driver
2607869093b1SHidetoshi Shimokawadevice		dcons_crom		# FireWire attachment
2608869093b1SHidetoshi Shimokawaoptions 	DCONS_BUF_SIZE=16384	# buffer size
2609869093b1SHidetoshi Shimokawaoptions 	DCONS_POLL_HZ=100	# polling rate
2610869093b1SHidetoshi Shimokawaoptions 	DCONS_FORCE_CONSOLE=0	# force to be the primary console
2611869093b1SHidetoshi Shimokawaoptions 	DCONS_FORCE_GDB=1	# force to be the gdb device
26127d2ba89bSJohn Baldwin
26137d2ba89bSJohn Baldwin#####################################################################
26148b7ce2ffSSam Leffler# crypto subsystem
26158b7ce2ffSSam Leffler#
26161c9c6382SRuslan Ermilov# This is a port of the OpenBSD crypto framework.  Include this when
2617b2630c29SGeorge V. Neville-Neil# configuring IPSEC and when you have a h/w crypto device to accelerate
26181c9c6382SRuslan Ermilov# user applications that link to OpenSSL.
26198b7ce2ffSSam Leffler#
26201c9c6382SRuslan Ermilov# Drivers are ports from OpenBSD with some simple enhancements that have
26211c9c6382SRuslan Ermilov# been fed back to OpenBSD.
26228b7ce2ffSSam Leffler
26238b7ce2ffSSam Lefflerdevice		crypto		# core crypto support
2624b65946c6SJohn-Mark Gurney
2625b65946c6SJohn-Mark Gurney# Only install the cryptodev device if you are running tests, or know
2626e0b231cbSJohn-Mark Gurney# specifically why you need it.  In most cases, it is not needed and
2627e0b231cbSJohn-Mark Gurney# will make things slower.
26288b7ce2ffSSam Lefflerdevice		cryptodev	# /dev/crypto for access to h/w
26298b7ce2ffSSam Leffler
2630ac7e2c05SSam Lefflerdevice		rndtest		# FIPS 140-2 entropy tester
26318b7ce2ffSSam Leffler
26325033c43bSJohn Baldwindevice		ccr		# Chelsio T6
26335033c43bSJohn Baldwin
2634b7c4858fSSam Lefflerdevice		hifn		# Hifn 7951, 7781, etc.
2635b7c4858fSSam Leffleroptions 	HIFN_DEBUG	# enable debugging support: hw.hifn.debug
2636b7c4858fSSam Leffleroptions 	HIFN_RNDTEST	# enable rndtest support
2637b7c4858fSSam Leffler
26388b7ce2ffSSam Leffler#####################################################################
26398b7ce2ffSSam Leffler
26408b7ce2ffSSam Leffler
2641785d2100SJohn Birrell#
2642785d2100SJohn Birrell# Embedded system options:
2643785d2100SJohn Birrell#
2644785d2100SJohn Birrell# An embedded system might want to run something other than init.
26450fc9f11dSSergey Kandaurovoptions 	INIT_PATH=/sbin/init:/rescue/init
2646bc0e3a03SJeroen Ruigrok van der Werven
2647bc0e3a03SJeroen Ruigrok van der Werven# Debug options
2648bc0e3a03SJeroen Ruigrok van der Wervenoptions 	BUS_DEBUG	# enable newbus debugging
26491c9c6382SRuslan Ermilovoptions 	DEBUG_VFS_LOCKS	# enable VFS lock debugging
2650395bb186SSam Leffleroptions 	SOCKBUF_DEBUG	# enable sockbuf last record/mb tail checking
265141c1a233SGleb Smirnoffoptions 	IFMEDIA_DEBUG	# enable debugging in net/if_media.c
2652bc0e3a03SJeroen Ruigrok van der Werven
2653e2c1a4e9SBenno Rice#
2654e2c1a4e9SBenno Rice# Verbose SYSINIT
2655e2c1a4e9SBenno Rice#
2656e2c1a4e9SBenno Rice# Make the SYSINIT process performed by mi_startup() verbose.  This is very
2657e2c1a4e9SBenno Rice# useful when porting to a new architecture.  If DDB is also enabled, this
2658199b9ab8SIan Lepore# will print function names instead of addresses.  If defined with a value
2659199b9ab8SIan Lepore# of zero, the verbose code is compiled-in but disabled by default, and can
2660199b9ab8SIan Lepore# be enabled with the debug.verbose_sysinit=1 tunable.
2661e2c1a4e9SBenno Riceoptions 	VERBOSE_SYSINIT
2662e2c1a4e9SBenno Rice
2663446af86dSJohn Baldwin#####################################################################
2664446af86dSJohn Baldwin# SYSV IPC KERNEL PARAMETERS
2665446af86dSJohn Baldwin#
2666446af86dSJohn Baldwin# Maximum number of System V semaphores that can be used on the system at
2667446af86dSJohn Baldwin# one time.
2668446af86dSJohn Baldwinoptions 	SEMMNI=11
2669446af86dSJohn Baldwin
2670446af86dSJohn Baldwin# Total number of semaphores system wide
2671446af86dSJohn Baldwinoptions 	SEMMNS=61
2672446af86dSJohn Baldwin
2673446af86dSJohn Baldwin# Total number of undo structures in system
2674446af86dSJohn Baldwinoptions 	SEMMNU=31
2675446af86dSJohn Baldwin
2676446af86dSJohn Baldwin# Maximum number of System V semaphores that can be used by a single process
2677446af86dSJohn Baldwin# at one time.
2678446af86dSJohn Baldwinoptions 	SEMMSL=61
2679446af86dSJohn Baldwin
2680446af86dSJohn Baldwin# Maximum number of operations that can be outstanding on a single System V
2681446af86dSJohn Baldwin# semaphore at one time.
2682446af86dSJohn Baldwinoptions 	SEMOPM=101
2683446af86dSJohn Baldwin
2684446af86dSJohn Baldwin# Maximum number of undo operations that can be outstanding on a single
2685446af86dSJohn Baldwin# System V semaphore at one time.
2686446af86dSJohn Baldwinoptions 	SEMUME=11
2687446af86dSJohn Baldwin
2688446af86dSJohn Baldwin# Maximum number of shared memory pages system wide.
2689446af86dSJohn Baldwinoptions 	SHMALL=1025
2690446af86dSJohn Baldwin
2691446af86dSJohn Baldwin# Maximum size, in bytes, of a single System V shared memory region.
269225388b6cSBruce Evansoptions 	SHMMAX=(SHMMAXPGS*PAGE_SIZE+1)
2693446af86dSJohn Baldwinoptions 	SHMMAXPGS=1025
2694446af86dSJohn Baldwin
2695446af86dSJohn Baldwin# Minimum size, in bytes, of a single System V shared memory region.
2696446af86dSJohn Baldwinoptions 	SHMMIN=2
2697446af86dSJohn Baldwin
2698446af86dSJohn Baldwin# Maximum number of shared memory regions that can be used on the system
2699446af86dSJohn Baldwin# at one time.
2700446af86dSJohn Baldwinoptions 	SHMMNI=33
2701446af86dSJohn Baldwin
2702446af86dSJohn Baldwin# Maximum number of System V shared memory regions that can be attached to
2703446af86dSJohn Baldwin# a single process at one time.
2704446af86dSJohn Baldwinoptions 	SHMSEG=9
2705446af86dSJohn Baldwin
2706d9282887SDima Dorfman# Set the amount of time (in seconds) the system will wait before
2707d9282887SDima Dorfman# rebooting automatically when a kernel panic occurs.  If set to (-1),
2708d9282887SDima Dorfman# the system will wait indefinitely until a key is pressed on the
2709d9282887SDima Dorfman# console.
2710d9282887SDima Dorfmanoptions 	PANIC_REBOOT_WAIT_TIME=16
2711d9282887SDima Dorfman
27125bbb8060STor Egge# Attempt to bypass the buffer cache and put data directly into the
27135bbb8060STor Egge# userland buffer for read operation when O_DIRECT flag is set on the
27145bbb8060STor Egge# file.  Both offset and length of the read operation must be
27155bbb8060STor Egge# multiples of the physical media sector size.
27165bbb8060STor Egge#
2717995356dcSDag-Erling Smørgravoptions 	DIRECTIO
27185bbb8060STor Egge
27195bbb8060STor Egge# Specify a lower limit for the number of swap I/O buffers.  They are
27205bbb8060STor Egge# (among other things) used when bypassing the buffer cache due to
27215bbb8060STor Egge# DIRECTIO kernel option enabled and O_DIRECT flag set on file.
27225bbb8060STor Egge#
2723995356dcSDag-Erling Smørgravoptions 	NSWBUF_MIN=120
27245bbb8060STor Egge
2725446af86dSJohn Baldwin#####################################################################
2726446af86dSJohn Baldwin
2727bc0e3a03SJeroen Ruigrok van der Werven# More undocumented options for linting.
27289c0ef6d5SOliver Fromme# Note that documenting these is not considered an affront.
2729bc0e3a03SJeroen Ruigrok van der Werven
2730bc0e3a03SJeroen Ruigrok van der Wervenoptions 	CAM_DEBUG_DELAY
273128d7984fSJeroen Ruigrok van der Werven
273228d7984fSJeroen Ruigrok van der Werven# VFS cluster debugging.
2733bc0e3a03SJeroen Ruigrok van der Wervenoptions 	CLUSTERDEBUG
273428d7984fSJeroen Ruigrok van der Werven
2735bc0e3a03SJeroen Ruigrok van der Wervenoptions 	DEBUG
27368b6f5e65SJeroen Ruigrok van der Werven
273728d7984fSJeroen Ruigrok van der Werven# Kernel filelock debugging.
2738bc0e3a03SJeroen Ruigrok van der Wervenoptions 	LOCKF_DEBUG
273928d7984fSJeroen Ruigrok van der Werven
27408b6f5e65SJeroen Ruigrok van der Werven# System V compatible message queues
27418b6f5e65SJeroen Ruigrok van der Werven# Please note that the values provided here are used to test kernel
27428b6f5e65SJeroen Ruigrok van der Werven# building.  The defaults in the sources provide almost the same numbers.
27438b6f5e65SJeroen Ruigrok van der Werven# MSGSSZ must be a power of 2 between 8 and 1024.
27448b6f5e65SJeroen Ruigrok van der Wervenoptions 	MSGMNB=2049	# Max number of chars in queue
27458b6f5e65SJeroen Ruigrok van der Wervenoptions 	MSGMNI=41	# Max number of message queue identifiers
27468b6f5e65SJeroen Ruigrok van der Wervenoptions 	MSGSEG=2049	# Max number of message segments
27478b6f5e65SJeroen Ruigrok van der Wervenoptions 	MSGSSZ=16	# Size of a message segment
27488b6f5e65SJeroen Ruigrok van der Wervenoptions 	MSGTQL=41	# Max number of messages in system
27498b6f5e65SJeroen Ruigrok van der Werven
27508b6f5e65SJeroen Ruigrok van der Wervenoptions 	NBUF=512	# Number of buffer headers
27518b6f5e65SJeroen Ruigrok van der Werven
27528b6f5e65SJeroen Ruigrok van der Wervenoptions 	SC_DEBUG_LEVEL=5	# Syscons debug level
27538b6f5e65SJeroen Ruigrok van der Wervenoptions 	SC_RENDER_DEBUG	# syscons rendering debugging
27548b6f5e65SJeroen Ruigrok van der Werven
27558b6f5e65SJeroen Ruigrok van der Wervenoptions 	VFS_BIO_DEBUG	# VFS buffer I/O debugging
27568b6f5e65SJeroen Ruigrok van der Werven
2757316ec49aSScott Longoptions 	KSTACK_MAX_PAGES=32 # Maximum pages to give the kernel stack
2758b7627840SKonstantin Belousovoptions 	KSTACK_USAGE_PROF
2759316ec49aSScott Long
2760662d3818SScott Long# Adaptec Array Controller driver options
2761662d3818SScott Longoptions 	AAC_DEBUG	# Debugging levels:
2762662d3818SScott Long				# 0 - quiet, only emit warnings
2763662d3818SScott Long				# 1 - noisy, emit major function
2764662d3818SScott Long				#     points and things done
2765662d3818SScott Long				# 2 - extremely noisy, emit trace
2766662d3818SScott Long				#     items in loops, etc.
2767662d3818SScott Long
2768097055e2SEdward Tomasz Napierala# Resource Accounting
2769097055e2SEdward Tomasz Napieralaoptions 	RACCT
2770097055e2SEdward Tomasz Napierala
2771ec125fbbSEdward Tomasz Napierala# Resource Limits
2772ec125fbbSEdward Tomasz Napieralaoptions 	RCTL
2773ec125fbbSEdward Tomasz Napierala
27741e9ea774SBruce Evans# Yet more undocumented options for linting.
27751e9ea774SBruce Evansoptions 	MAXFILES=999
2776efba048eSXin LI
2777997b0a64SDag-Erling Smørgrav# Random number generator
277819fa89e9SMark Murray# Allow the CSPRNG algorithm to be loaded as a module.
277919fa89e9SMark Murray#options 	RANDOM_LOADABLE
2780e866d8f0SMark Murray# Select this to allow high-rate but potentially expensive
2781e866d8f0SMark Murray# harvesting of Slab-Allocator entropy. In very high-rate
2782e866d8f0SMark Murray# situations the value of doing this is dubious at best.
2783e866d8f0SMark Murrayoptions 	RANDOM_ENABLE_UMA	# slab allocator
278481e3caafSJustin Hibbits
2785a6bc59f2SMatt Macy# Select this to allow high-rate but potentially expensive
2786a6bc59f2SMatt Macy# harvesting of of the m_next pointer in the mbuf. Note that
2787a6bc59f2SMatt Macy# the m_next pointer is NULL except when receiving > 4K
2788a6bc59f2SMatt Macy# jumbo frames or sustained bursts by way of LRO. Thus in
2789a6bc59f2SMatt Macy# the common case it is stirring zero in to the entropy
2790a6bc59f2SMatt Macy# pool. In cases where it is not NULL it is pointing to one
2791a6bc59f2SMatt Macy# of a small (in the thousands to 10s of thousands) number
2792a6bc59f2SMatt Macy# of 256 byte aligned mbufs. Hence it is, even in the best
2793a6bc59f2SMatt Macy# case, a poor source of entropy. And in the absence of actual
2794a6bc59f2SMatt Macy# runtime analysis of entropy collection may mislead the user in
2795a6bc59f2SMatt Macy# to believe that substantially more entropy is being collected
2796a6bc59f2SMatt Macy# than in fact is - leading to a different class of security
2797a6bc59f2SMatt Macy# risk. In high packet rate situations ethernet entropy
2798a6bc59f2SMatt Macy# collection is also very expensive, possibly leading to as
2799a6bc59f2SMatt Macy# much as a 50% drop in packets received.
2800a6bc59f2SMatt Macy# This option is present to maintain backwards compatibility
2801a6bc59f2SMatt Macy# if desired, however it cannot be recommended for use in any
2802a6bc59f2SMatt Macy# environment.
2803a6bc59f2SMatt Macyoptions 	RANDOM_ENABLE_ETHER	# ether_input
2804a6bc59f2SMatt Macy
280581e3caafSJustin Hibbits# Module to enable execution of application via emulators like QEMU
280681e3caafSJustin Hibbitsoptions         IMAGACT_BINMISC
2807aa14e9b7SMark Johnston
2808aa14e9b7SMark Johnston# zlib I/O stream support
2809aa14e9b7SMark Johnston# This enables support for compressed core dumps.
2810aa14e9b7SMark Johnstonoptions 	GZIO
2811fb403678SAdrian Chadd
2812eefd8f96SConrad Meyer# zstd support
2813eefd8f96SConrad Meyer# This enables support for Zstd compressed core dumps and GEOM_UZIP images.
28146026dcd7SMark Johnstonoptions 	ZSTDIO
28156026dcd7SMark Johnston
2816fb403678SAdrian Chadd# BHND(4) drivers
2817fb403678SAdrian Chaddoptions		BHND_LOGLEVEL	# Logging threshold level
28182b3f6d66SOleksandr Tymoshenko
28192b3f6d66SOleksandr Tymoshenko# evdev interface
2820a6b15a34SOleksandr Tymoshenkodevice		evdev		# input event device support
2821a6b15a34SOleksandr Tymoshenkooptions 	EVDEV_SUPPORT	# evdev support in legacy drivers
2822a6b15a34SOleksandr Tymoshenkooptions 	EVDEV_DEBUG	# enable event debug msgs
2823a6b15a34SOleksandr Tymoshenkodevice		uinput		# install /dev/uinput cdev
2824a6b15a34SOleksandr Tymoshenkooptions 	UINPUT_DEBUG	# enable uinput debug msgs
2825480f31c2SKonrad Witaszczyk
2826480f31c2SKonrad Witaszczyk# Encrypted kernel crash dumps.
2827480f31c2SKonrad Witaszczykoptions 	EKCD
28281fcf4de0SIan Lepore
28292d7e9271SIan Lepore# Serial Peripheral Interface (SPI) support.
28302d7e9271SIan Leporedevice		spibus		# Bus support.
28312d7e9271SIan Leporedevice		at45d		# DataFlash driver
28322d7e9271SIan Leporedevice		cqspi		#
28332d7e9271SIan Leporedevice		mx25l		# SPIFlash driver
28342d7e9271SIan Leporedevice		n25q		#
28352d7e9271SIan Leporedevice		spigen		# Generic access to SPI devices from userland.
28361fcf4de0SIan Lepore# Enable legacy /dev/spigenN name aliases for /dev/spigenX.Y devices.
28371fcf4de0SIan Leporeoptions 	SPIGEN_LEGACY_CDEVNAME # legacy device names for spigen
2838e8643b01SKonstantin Belousov
28390ed1d6fbSXin LI# Compression supports.
28400ed1d6fbSXin LIdevice		zlib		# gzip/zlib compression/decompression library
2841e8643b01SKonstantin Belousovdevice		xz		# xz_embedded LZMA de-compression library
28422ae3f52cSEdward Tomasz Napierala
28432ae3f52cSEdward Tomasz Napierala# Kernel support for stats(3).
28442ae3f52cSEdward Tomasz Napieralaoptions 	STATS
2845