summaryrefslogtreecommitdiffstats
path: root/sys/conf/NOTES
diff options
context:
space:
mode:
Diffstat (limited to 'sys/conf/NOTES')
-rw-r--r--sys/conf/NOTES2677
1 files changed, 2677 insertions, 0 deletions
diff --git a/sys/conf/NOTES b/sys/conf/NOTES
new file mode 100644
index 0000000..665145c
--- /dev/null
+++ b/sys/conf/NOTES
@@ -0,0 +1,2677 @@
+# $FreeBSD$
+#
+# NOTES -- Lines that can be cut/pasted into kernel and hints configs.
+#
+# Lines that begin with 'device', 'options', 'machine', 'ident', 'maxusers',
+# 'makeoptions', 'hints', etc. go into the kernel configuration that you
+# run config(8) with.
+#
+# Lines that begin with 'hint.' are NOT for config(8), they go into your
+# hints file. See /boot/device.hints and/or the 'hints' config(8) directive.
+#
+# Please use ``make LINT'' to create an old-style LINT file if you want to
+# do kernel test-builds.
+#
+# This file contains machine independent kernel configuration notes. For
+# machine dependent notes, look in /sys/<arch>/conf/NOTES.
+#
+
+#
+# NOTES conventions and style guide:
+#
+# Large block comments should begin and end with a line containing only a
+# comment character.
+#
+# To describe a particular object, a block comment (if it exists) should
+# come first. Next should come device, options, and hints lines in that
+# order. All device and option lines must be described by a comment that
+# doesn't just expand the device or option name. Use only a concise
+# comment on the same line if possible. Very detailed descriptions of
+# devices and subsystems belong in man pages.
+#
+# A space followed by a tab separates 'options' from an option name. Two
+# spaces followed by a tab separate 'device' from a device name. Comments
+# after an option or device should use one space after the comment character.
+# To comment out a negative option that disables code and thus should not be
+# enabled for LINT builds, precede 'options' with "#!".
+#
+
+#
+# This is the ``identification'' of the kernel. Usually this should
+# be the same as the name of your kernel.
+#
+ident LINT
+
+#
+# The `maxusers' parameter controls the static sizing of a number of
+# internal system tables by a formula defined in subr_param.c.
+# Omitting this parameter or setting it to 0 will cause the system to
+# auto-size based on physical memory.
+#
+maxusers 10
+
+#
+# The `makeoptions' parameter allows variables to be passed to the
+# generated Makefile in the build area.
+#
+# CONF_CFLAGS gives some extra compiler flags that are added to ${CFLAGS}
+# after most other flags. Here we use it to inhibit use of non-optimal
+# gcc built-in functions (e.g., memcmp).
+#
+# DEBUG happens to be magic.
+# The following is equivalent to 'config -g KERNELNAME' and creates
+# 'kernel.debug' compiled with -g debugging as well as a normal
+# 'kernel'. Use 'make install.debug' to install the debug kernel
+# but that isn't normally necessary as the debug symbols are not loaded
+# by the kernel and are not useful there anyway.
+#
+# KERNEL can be overridden so that you can change the default name of your
+# kernel.
+#
+# MODULES_OVERRIDE can be used to limit modules built to a specific list.
+#
+makeoptions CONF_CFLAGS=-fno-builtin #Don't allow use of memcmp, etc.
+#makeoptions DEBUG=-g #Build kernel with gdb(1) debug symbols
+#makeoptions KERNEL=foo #Build kernel "foo" and install "/foo"
+# Only build ext2fs module plus those parts of the sound system I need.
+#makeoptions MODULES_OVERRIDE="ext2fs sound/sound sound/driver/maestro3"
+makeoptions DESTDIR=/tmp
+
+#
+# FreeBSD processes are subject to certain limits to their consumption
+# of system resources. See getrlimit(2) for more details. Each
+# resource limit has two values, a "soft" limit and a "hard" limit.
+# The soft limits can be modified during normal system operation, but
+# the hard limits are set at boot time. Their default values are
+# in sys/<arch>/include/vmparam.h. There are two ways to change them:
+#
+# 1. Set the values at kernel build time. The options below are one
+# way to allow that limit to grow to 1GB. They can be increased
+# further by changing the parameters:
+#
+# 2. In /boot/loader.conf, set the tunables kern.maxswzone,
+# kern.maxbcache, kern.maxtsiz, kern.dfldsiz, kern.maxdsiz,
+# kern.dflssiz, kern.maxssiz and kern.sgrowsiz.
+#
+# The options in /boot/loader.conf override anything in the kernel
+# configuration file. See the function init_param1 in
+# sys/kern/subr_param.c for more details.
+#
+
+options MAXDSIZ=(1024UL*1024*1024)
+options MAXSSIZ=(128UL*1024*1024)
+options DFLDSIZ=(1024UL*1024*1024)
+
+#
+# BLKDEV_IOSIZE sets the default block size used in user block
+# device I/O. Note that this value will be overridden by the label
+# when specifying a block device from a label with a non-0
+# partition blocksize. The default is PAGE_SIZE.
+#
+options BLKDEV_IOSIZE=8192
+
+#
+# MAXPHYS and DFLTPHYS
+#
+# These are the max and default 'raw' I/O block device access sizes.
+# Reads and writes will be split into DFLTPHYS chunks. Some applications
+# have better performance with larger raw I/O access sizes. Typically
+# MAXPHYS should be twice the size of DFLTPHYS. Note that certain VM
+# parameters are derived from these values and making them too large
+# can make an an unbootable kernel.
+#
+# The defaults are 64K and 128K respectively.
+options DFLTPHYS=(64*1024)
+options MAXPHYS=(128*1024)
+
+
+# This allows you to actually store this configuration file into
+# the kernel binary itself, where it may be later read by saying:
+# strings -n 3 /boot/kernel/kernel | sed -n 's/^___//p' > MYKERNEL
+#
+options INCLUDE_CONFIG_FILE # Include this file in kernel
+
+options GEOM_AES # Don't use, use GEOM_BDE
+options GEOM_BDE # Disk encryption.
+options GEOM_BSD # BSD disklabels
+options GEOM_CACHE # Disk cache.
+options GEOM_CONCAT # Disk concatenation.
+options GEOM_ELI # Disk encryption.
+options GEOM_FOX # Redundant path mitigation
+options GEOM_GATE # Userland services.
+options GEOM_JOURNAL # Journaling.
+options GEOM_LABEL # Providers labelization.
+options GEOM_MBR # DOS/MBR partitioning
+options GEOM_MIRROR # Disk mirroring.
+options GEOM_MULTIPATH # Disk multipath
+options GEOM_NOP # Test class.
+options GEOM_PART_APM # Apple partitioning
+options GEOM_PART_GPT # GPT partitioning
+options GEOM_PART_MBR # MBR partitioning
+options GEOM_PC98 # NEC PC9800 partitioning
+options GEOM_RAID3 # RAID3 functionality.
+options GEOM_SHSEC # Shared secret.
+options GEOM_STRIPE # Disk striping.
+options GEOM_SUNLABEL # Sun/Solaris partitioning
+options GEOM_UZIP # Read-only compressed disks
+options GEOM_VOL # Volume names from UFS superblock
+options GEOM_ZERO # Performance testing helper.
+
+#
+# The root device and filesystem type can be compiled in;
+# this provides a fallback option if the root device cannot
+# be correctly guessed by the bootstrap code, or an override if
+# the RB_DFLTROOT flag (-r) is specified when booting the kernel.
+#
+options ROOTDEVNAME=\"ufs:da0s2e\"
+
+
+#####################################################################
+# Scheduler options:
+#
+# Specifying one of SCHED_4BSD or SCHED_ULE is mandatory. These options
+# select which scheduler is compiled in.
+#
+# SCHED_4BSD is the historical, proven, BSD scheduler. It has a global run
+# queue and no CPU affinity which makes it suboptimal for SMP. It has very
+# good interactivity and priority selection.
+#
+# SCHED_ULE is a new scheduler that has been designed for SMP and has some
+# advantages for UP as well. It is intended to replace the 4BSD scheduler
+# over time. NOTE: SCHED_ULE is currently considered experimental and is
+# not recommended for production use at this time.
+#
+options SCHED_4BSD
+#options SCHED_ULE
+
+#####################################################################
+# SMP OPTIONS:
+#
+# SMP enables building of a Symmetric MultiProcessor Kernel.
+
+# Mandatory:
+options SMP # Symmetric MultiProcessor Kernel
+
+# ADAPTIVE_MUTEXES changes the behavior of blocking mutexes to spin
+# if the thread that currently owns the mutex is executing on another
+# CPU. This behaviour is enabled by default, so this option can be used
+# to disable it.
+options NO_ADAPTIVE_MUTEXES
+
+# ADAPTIVE_RWLOCKS changes the behavior of reader/writer locks to spin
+# if the thread that currently owns the rwlock is executing on another
+# CPU. This behaviour is enabled by default, so this option can be used
+# to disable it.
+options NO_ADAPTIVE_RWLOCKS
+
+# ADAPTIVE_GIANT causes the Giant lock to also be made adaptive when
+# running without NO_ADAPTIVE_MUTEXES. Normally, because Giant is assumed
+# to be held for extended periods, contention on Giant will cause a thread
+# to sleep rather than spinning.
+options ADAPTIVE_GIANT
+
+# ADAPTIVE_SX changes the behavior of sx locks to spin if the thread
+# that currently owns the lock is executing on another CPU. Note that
+# in addition to enabling this option, individual sx locks must be
+# initialized with the SX_ADAPTIVESPIN flag.
+options ADAPTIVE_SX
+
+# MUTEX_NOINLINE forces mutex operations to call functions to perform each
+# operation rather than inlining the simple cases. This can be used to
+# shrink the size of the kernel text segment. Note that this behavior is
+# already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
+# and WITNESS options.
+options MUTEX_NOINLINE
+
+# RWLOCK_NOINLINE forces rwlock operations to call functions to perform each
+# operation rather than inlining the simple cases. This can be used to
+# shrink the size of the kernel text segment. Note that this behavior is
+# already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
+# and WITNESS options.
+options RWLOCK_NOINLINE
+
+# SX_NOINLINE forces sx lock operations to call functions to perform each
+# operation rather than inlining the simple cases. This can be used to
+# shrink the size of the kernel text segment. Note that this behavior is
+# already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
+# and WITNESS options.
+options SX_NOINLINE
+
+# SMP Debugging Options:
+#
+# PREEMPTION allows the threads that are in the kernel to be preempted
+# by higher priority threads. It helps with interactivity and
+# allows interrupt threads to run sooner rather than waiting.
+# WARNING! Only tested on amd64 and i386.
+# FULL_PREEMPTION instructs the kernel to preempt non-realtime kernel
+# threads. Its sole use is to expose race conditions and other
+# bugs during development. Enabling this option will reduce
+# performance and increase the frequency of kernel panics by
+# design. If you aren't sure that you need it then you don't.
+# Relies on the PREEMPTION option. DON'T TURN THIS ON.
+# MUTEX_DEBUG enables various extra assertions in the mutex code.
+# SLEEPQUEUE_PROFILING enables rudimentary profiling of the hash table
+# used to hold active sleep queues.
+# TURNSTILE_PROFILING enables rudimentary profiling of the hash table
+# used to hold active lock queues.
+# WITNESS enables the witness code which detects deadlocks and cycles
+# during locking operations.
+# WITNESS_KDB causes the witness code to drop into the kernel debugger if
+# a lock hierarchy violation occurs or if locks are held when going to
+# sleep.
+# WITNESS_SKIPSPIN disables the witness checks on spin mutexes.
+options PREEMPTION
+options FULL_PREEMPTION
+options MUTEX_DEBUG
+options WITNESS
+options WITNESS_KDB
+options WITNESS_SKIPSPIN
+
+# LOCK_PROFILING - Profiling locks. See LOCK_PROFILING(9) for details.
+options LOCK_PROFILING
+# Set the number of buffers and the hash size. The hash size MUST be larger
+# than the number of buffers. Hash size should be prime.
+options MPROF_BUFFERS="1536"
+options MPROF_HASH_SIZE="1543"
+
+# Profiling for internal hash tables.
+options SLEEPQUEUE_PROFILING
+options TURNSTILE_PROFILING
+
+
+#####################################################################
+# COMPATIBILITY OPTIONS
+
+#
+# Implement system calls compatible with 4.3BSD and older versions of
+# FreeBSD. You probably do NOT want to remove this as much current code
+# still relies on the 4.3 emulation. Note that some architectures that
+# are supported by FreeBSD do not include support for certain important
+# aspects of this compatibility option, namely those related to the
+# signal delivery mechanism.
+#
+options COMPAT_43
+
+# Old tty interface.
+options COMPAT_43TTY
+
+# Enable FreeBSD4 compatibility syscalls
+options COMPAT_FREEBSD4
+
+# Enable FreeBSD5 compatibility syscalls
+options COMPAT_FREEBSD5
+
+# Enable FreeBSD6 compatibility syscalls
+options COMPAT_FREEBSD6
+
+#
+# These three options provide support for System V Interface
+# Definition-style interprocess communication, in the form of shared
+# memory, semaphores, and message queues, respectively.
+#
+options SYSVSHM
+options SYSVSEM
+options SYSVMSG
+
+
+#####################################################################
+# DEBUGGING OPTIONS
+
+#
+# Compile with kernel debugger related code.
+#
+options KDB
+
+#
+# Print a stack trace of the current thread on the console for a panic.
+#
+options KDB_TRACE
+
+#
+# Don't enter the debugger for a panic. Intended for unattended operation
+# where you may want to enter the debugger from the console, but still want
+# the machine to recover from a panic.
+#
+options KDB_UNATTENDED
+
+#
+# Enable the ddb debugger backend.
+#
+options DDB
+
+#
+# Print the numerical value of symbols in addition to the symbolic
+# representation.
+#
+options DDB_NUMSYM
+
+#
+# Enable the remote gdb debugger backend.
+#
+options GDB
+
+#
+# SYSCTL_DEBUG enables a 'sysctl' debug tree that can be used to dump the
+# contents of the registered sysctl nodes on the console. It is disabled by
+# default because it generates excessively verbose console output that can
+# interfere with serial console operation.
+#
+options SYSCTL_DEBUG
+
+#
+# DEBUG_MEMGUARD builds and enables memguard(9), a replacement allocator
+# for the kernel used to detect modify-after-free scenarios. See the
+# memguard(9) man page for more information on usage.
+#
+options DEBUG_MEMGUARD
+
+#
+# DEBUG_REDZONE enables buffer underflows and buffer overflows detection for
+# malloc(9).
+#
+options DEBUG_REDZONE
+
+#
+# KTRACE enables the system-call tracing facility ktrace(2). To be more
+# SMP-friendly, KTRACE uses a worker thread to process most trace events
+# asynchronously to the thread generating the event. This requires a
+# pre-allocated store of objects representing trace events. The
+# KTRACE_REQUEST_POOL option specifies the initial size of this store.
+# The size of the pool can be adjusted both at boottime and runtime via
+# the kern.ktrace_request_pool tunable and sysctl.
+#
+options KTRACE #kernel tracing
+options KTRACE_REQUEST_POOL=101
+
+#
+# KTR is a kernel tracing mechanism imported from BSD/OS. Currently
+# it has no userland interface aside from a few sysctl's. It is
+# enabled with the KTR option. KTR_ENTRIES defines the number of
+# entries in the circular trace buffer; it must be a power of two.
+# KTR_COMPILE defines the mask of events to compile into the kernel as
+# defined by the KTR_* constants in <sys/ktr.h>. KTR_MASK defines the
+# initial value of the ktr_mask variable which determines at runtime
+# what events to trace. KTR_CPUMASK determines which CPU's log
+# events, with bit X corresponding to CPU X. KTR_VERBOSE enables
+# dumping of KTR events to the console by default. This functionality
+# can be toggled via the debug.ktr_verbose sysctl and defaults to off
+# if KTR_VERBOSE is not defined.
+#
+options KTR
+options KTR_ENTRIES=1024
+options KTR_COMPILE=(KTR_INTR|KTR_PROC)
+options KTR_MASK=KTR_INTR
+options KTR_CPUMASK=0x3
+options KTR_VERBOSE
+
+#
+# ALQ(9) is a facility for the asynchronous queuing of records from the kernel
+# to a vnode, and is employed by services such as KTR(4) to produce trace
+# files based on a kernel event stream. Records are written asynchronously
+# in a worker thread.
+#
+options ALQ
+options KTR_ALQ
+
+#
+# The INVARIANTS option is used in a number of source files to enable
+# extra sanity checking of internal structures. This support is not
+# enabled by default because of the extra time it would take to check
+# for these conditions, which can only occur as a result of
+# programming errors.
+#
+options INVARIANTS
+
+#
+# The INVARIANT_SUPPORT option makes us compile in support for
+# verifying some of the internal structures. It is a prerequisite for
+# 'INVARIANTS', as enabling 'INVARIANTS' will make these functions be
+# called. The intent is that you can set 'INVARIANTS' for single
+# source files (by changing the source file or specifying it on the
+# command line) if you have 'INVARIANT_SUPPORT' enabled. Also, if you
+# wish to build a kernel module with 'INVARIANTS', then adding
+# 'INVARIANT_SUPPORT' to your kernel will provide all the necessary
+# infrastructure without the added overhead.
+#
+options INVARIANT_SUPPORT
+
+#
+# The DIAGNOSTIC option is used to enable extra debugging information
+# from some parts of the kernel. As this makes everything more noisy,
+# it is disabled by default.
+#
+options DIAGNOSTIC
+
+#
+# REGRESSION causes optional kernel interfaces necessary only for regression
+# testing to be enabled. These interfaces may constitute security risks
+# when enabled, as they permit processes to easily modify aspects of the
+# run-time environment to reproduce unlikely or unusual (possibly normally
+# impossible) scenarios.
+#
+options REGRESSION
+
+#
+# RESTARTABLE_PANICS allows one to continue from a panic as if it were
+# a call to the debugger to continue from a panic as instead. It is only
+# useful if a kernel debugger is present. To restart from a panic, reset
+# the panicstr variable to NULL and continue execution. This option is
+# for development use only and should NOT be used in production systems
+# to "workaround" a panic.
+#
+#options RESTARTABLE_PANICS
+
+#
+# This option let some drivers co-exist that can't co-exist in a running
+# system. This is used to be able to compile all kernel code in one go for
+# quality assurance purposes (like this file, which the option takes it name
+# from.)
+#
+options COMPILING_LINT
+
+
+#####################################################################
+# PERFORMANCE MONITORING OPTIONS
+
+#
+# The hwpmc driver that allows the use of in-CPU performance monitoring
+# counters for performance monitoring. The base kernel needs to configured
+# with the 'options' line, while the hwpmc device can be either compiled
+# in or loaded as a loadable kernel module.
+#
+# Additional configuration options may be required on specific architectures,
+# please see hwpmc(4).
+
+device hwpmc # Driver (also a loadable module)
+options HWPMC_HOOKS # Other necessary kernel hooks
+
+
+#####################################################################
+# NETWORKING OPTIONS
+
+#
+# Protocol families:
+# Only the INET (Internet) family is officially supported in FreeBSD.
+#
+options INET #Internet communications protocols
+options INET6 #IPv6 communications protocols
+#options IPSEC #IP security
+#options IPSEC_ESP #IP security (crypto; define w/ IPSEC)
+#options IPSEC_DEBUG #debug for IP security
+#
+# Set IPSEC_FILTERGIF to force packets coming through a gif tunnel
+# to be processed by any configured packet filtering (ipfw, ipf).
+# The default is that packets coming from a tunnel are _not_ processed;
+# they are assumed trusted.
+#
+# IPSEC history is preserved for such packets, and can be filtered
+# using ipfw(8)'s 'ipsec' keyword, when this option is enabled.
+#
+#options IPSEC_FILTERGIF #filter ipsec packets from a tunnel
+
+options FAST_IPSEC #new IPsec (cannot define w/ IPSEC)
+
+options IPX #IPX/SPX communications protocols
+
+options NCP #NetWare Core protocol
+
+options NETATALK #Appletalk communications protocols
+options NETATALKDEBUG #Appletalk debugging
+
+#
+# SMB/CIFS requester
+# NETSMB enables support for SMB protocol, it requires LIBMCHAIN and LIBICONV
+# options.
+options NETSMB #SMB/CIFS requester
+
+# mchain library. It can be either loaded as KLD or compiled into kernel
+options LIBMCHAIN
+
+# libalias library, performing NAT
+options LIBALIAS
+
+#
+# SCTP is a NEW transport protocol defined by
+# RFC2960 updated by RFC3309 and RFC3758.. and
+# soon to have a new base RFC and many many more
+# extensions. This release supports all the extensions
+# including many drafts (most about to become RFC's).
+# It is the premeier SCTP implementation in the NET
+# and is quite well tested.
+#
+# Note YOU MUST have both INET and INET6 defined.
+# you don't have to enable V6, but SCTP is
+# dual stacked and so far we have not teased apart
+# the V6 and V4.. since an association can span
+# both a V6 and V4 address at the SAME time :-)
+#
+options SCTP
+# There are bunches of options:
+# this one turns on all sorts of
+# nastly printing that you can
+# do. Its all controled by a
+# bit mask (settable by socket opt and
+# by sysctl). Including will not cause
+# logging until you set the bits.. but it
+# can be quite verbose.. so without this
+# option we don't do any of the tests for
+# bits and prints.. which makes the code run
+# faster.. if you are not debugging don't use.
+options SCTP_DEBUG
+#
+# High speed enables sally floyds HS TCP optioin
+# for congestion control increase, use only in
+# very HS networks and with caution since I doubt
+# it will compete fairly with peers. For the big-bad
+# internet its best NOT to enable.
+#
+options SCTP_HIGH_SPEED
+#
+# This option turns off the CRC32c checksum. Basically
+# You will not be able to talk to anyone else that
+# has not done this. Its more for expermentation to
+# see how much CPU the CRC32c really takes. Most new
+# cards for TCP support checksum offload.. so this
+# option gives you a "view" into what SCTP would be
+# like with such an offload (which only exists in
+# high in iSCSI boards so far). With the new
+# splitting 8's algorithm its not as bad as it used
+# to be.. but it does speed things up try only
+# for in a captured lab environment :-)
+options SCTP_WITH_NO_CSUM
+#
+
+#
+# All that options after that turn on specific types of
+# logging. You can monitor CWND growth, flight size
+# and all sorts of things. Go look at the code and
+# see. I have used this to produce interesting
+# charts and graphs as well :->
+#
+# I have not yet commited the tools to get and print
+# the logs, I will do that eventually .. before then
+# if you want them send me an email rrs@freebsd.org
+# You basically must have KTR enabled for these
+# and you then set the sysctl to turn on/off various
+# logging bits. Use ktrdump to pull the log and run
+# it through a dispaly program.. and graphs and other
+# things too.
+#
+options SCTP_LOCK_LOGGING
+options SCTP_MBUF_LOGGING
+options SCTP_MBCNT_LOGGING
+options SCTP_PACKET_LOGGING
+options SCTP_LTRACE_CHUNKS
+options SCTP_LTRACE_ERRORS
+
+
+# altq(9). Enable the base part of the hooks with the ALTQ option.
+# Individual disciplines must be built into the base system and can not be
+# loaded as modules at this point. ALTQ requires a stable TSC so if yours is
+# broken or changes with CPU throttling then you must also have the ALTQ_NOPCC
+# option.
+options ALTQ
+options ALTQ_CBQ # Class Bases Queueing
+options ALTQ_RED # Random Early Detection
+options ALTQ_RIO # RED In/Out
+options ALTQ_HFSC # Hierarchical Packet Scheduler
+options ALTQ_CDNR # Traffic conditioner
+options ALTQ_PRIQ # Priority Queueing
+options ALTQ_NOPCC # Required if the TSC is unusable
+options ALTQ_DEBUG
+
+# netgraph(4). Enable the base netgraph code with the NETGRAPH option.
+# Individual node types can be enabled with the corresponding option
+# listed below; however, this is not strictly necessary as netgraph
+# will automatically load the corresponding KLD module if the node type
+# is not already compiled into the kernel. Each type below has a
+# corresponding man page, e.g., ng_async(8).
+options NETGRAPH # netgraph(4) system
+options NETGRAPH_DEBUG # enable extra debugging, this
+ # affects netgraph(4) and nodes
+# Node types
+options NETGRAPH_ASYNC
+options NETGRAPH_ATMLLC
+options NETGRAPH_ATM_ATMPIF
+options NETGRAPH_BLUETOOTH # ng_bluetooth(4)
+options NETGRAPH_BLUETOOTH_BT3C # ng_bt3c(4)
+options NETGRAPH_BLUETOOTH_H4 # ng_h4(4)
+options NETGRAPH_BLUETOOTH_HCI # ng_hci(4)
+options NETGRAPH_BLUETOOTH_L2CAP # ng_l2cap(4)
+options NETGRAPH_BLUETOOTH_SOCKET # ng_btsocket(4)
+options NETGRAPH_BLUETOOTH_UBT # ng_ubt(4)
+options NETGRAPH_BLUETOOTH_UBTBCMFW # ubtbcmfw(4)
+options NETGRAPH_BPF
+options NETGRAPH_BRIDGE
+options NETGRAPH_CAR
+options NETGRAPH_CISCO
+options NETGRAPH_DEFLATE
+options NETGRAPH_DEVICE
+options NETGRAPH_ECHO
+options NETGRAPH_EIFACE
+options NETGRAPH_ETHER
+options NETGRAPH_FEC
+options NETGRAPH_FRAME_RELAY
+options NETGRAPH_GIF
+options NETGRAPH_GIF_DEMUX
+options NETGRAPH_HOLE
+options NETGRAPH_IFACE
+options NETGRAPH_IP_INPUT
+options NETGRAPH_IPFW
+options NETGRAPH_KSOCKET
+options NETGRAPH_L2TP
+options NETGRAPH_LMI
+# MPPC compression requires proprietary files (not included)
+#options NETGRAPH_MPPC_COMPRESSION
+options NETGRAPH_MPPC_ENCRYPTION
+options NETGRAPH_NETFLOW
+options NETGRAPH_NAT
+options NETGRAPH_ONE2MANY
+options NETGRAPH_PPP
+options NETGRAPH_PPPOE
+options NETGRAPH_PPTPGRE
+options NETGRAPH_PRED1
+options NETGRAPH_RFC1490
+options NETGRAPH_SOCKET
+options NETGRAPH_SPLIT
+options NETGRAPH_SPPP
+options NETGRAPH_TAG
+options NETGRAPH_TCPMSS
+options NETGRAPH_TEE
+options NETGRAPH_TTY
+options NETGRAPH_UI
+options NETGRAPH_VJC
+
+# NgATM - Netgraph ATM
+options NGATM_ATM
+options NGATM_ATMBASE
+options NGATM_SSCOP
+options NGATM_SSCFU
+options NGATM_UNI
+options NGATM_CCATM
+
+device mn # Munich32x/Falc54 Nx64kbit/sec cards.
+
+#
+# Network interfaces:
+# The `loop' device is MANDATORY when networking is enabled.
+# The `ether' device provides generic code to handle
+# Ethernets; it is MANDATORY when an Ethernet device driver is
+# configured or token-ring is enabled.
+# The `vlan' device implements the VLAN tagging of Ethernet frames
+# according to IEEE 802.1Q. It requires `device miibus'.
+# The `wlan' device provides generic code to support 802.11
+# drivers, including host AP mode; it is MANDATORY for the wi,
+# ath, and awi drivers and will eventually be required by all 802.11 drivers.
+# The `wlan_wep', `wlan_tkip', and `wlan_ccmp' devices provide
+# support for WEP, TKIP, and AES-CCMP crypto protocols optionally
+# used with 802.11 devices that depend on the `wlan' module.
+# The `wlan_xauth' device provides support for external (i.e. user-mode)
+# authenticators for use with 802.11 drivers that use the `wlan'
+# module and support 802.1x and/or WPA security protocols.
+# The `wlan_acl' device provides a MAC-based access control mechanism
+# for use with 802.11 drivers operating in ap mode and using the
+# `wlan' module.
+# The `fddi' device provides generic code to support FDDI.
+# The `arcnet' device provides generic code to support Arcnet.
+# The `sppp' device serves a similar role for certain types
+# of synchronous PPP links (like `cx', `ar').
+# The `sl' device implements the Serial Line IP (SLIP) service.
+# The `ppp' device implements the Point-to-Point Protocol.
+# The `bpf' device enables the Berkeley Packet Filter. Be
+# aware of the legal and administrative consequences of enabling this
+# option. The number of devices determines the maximum number of
+# simultaneous BPF clients programs runnable. DHCP requires bpf.
+# The `disc' device implements a minimal network interface,
+# which throws away all packets sent and never receives any. It is
+# included for testing and benchmarking purposes.
+# The `edsc' device implements a minimal Ethernet interface,
+# which discards all packets sent and receives none.
+# The `tap' device is a pty-like virtual Ethernet interface
+# The `tun' device implements (user-)ppp and nos-tun
+# The `gif' device implements IPv6 over IP4 tunneling,
+# IPv4 over IPv6 tunneling, IPv4 over IPv4 tunneling and
+# IPv6 over IPv6 tunneling.
+# The `gre' device implements two types of IP4 over IP4 tunneling:
+# GRE and MOBILE, as specified in the RFC1701 and RFC2004.
+# The XBONEHACK option allows the same pair of addresses to be configured on
+# multiple gif interfaces.
+# The `faith' device captures packets sent to it and diverts them
+# to the IPv4/IPv6 translation daemon.
+# The `stf' device implements 6to4 encapsulation.
+# The `ef' device provides support for multiple ethernet frame types
+# specified via ETHER_* options. See ef(4) for details.
+#
+# The pf packet filter consists of three devices:
+# The `pf' device provides /dev/pf and the firewall code itself.
+# The `pflog' device provides the pflog0 interface which logs packets.
+# The `pfsync' device provides the pfsync0 interface used for
+# synchronization of firewall state tables (over the net).
+# The PF_MPSAFE_UGID option enables a special workaround for a LOR with
+# user/group rules that would otherwise lead to a deadlock. This has
+# performance implications and should be used with care.
+#
+# The PPP_BSDCOMP option enables support for compress(1) style entire
+# packet compression, the PPP_DEFLATE is for zlib/gzip style compression.
+# PPP_FILTER enables code for filtering the ppp data stream and selecting
+# events for resetting the demand dial activity timer - requires bpf.
+# See pppd(8) for more details.
+#
+device ether #Generic Ethernet
+device vlan #VLAN support (needs miibus)
+device wlan #802.11 support
+device wlan_wep #802.11 WEP support
+device wlan_ccmp #802.11 CCMP support
+device wlan_tkip #802.11 TKIP support
+device wlan_xauth #802.11 external authenticator support
+device wlan_acl #802.11 MAC ACL support
+device wlan_amrr #AMRR transmit rate control algorithm
+device wlan_scan_ap #802.11 AP mode scanning
+device wlan_scan_sta #802.11 STA mode scanning
+device token #Generic TokenRing
+device fddi #Generic FDDI
+device arcnet #Generic Arcnet
+device sppp #Generic Synchronous PPP
+device loop #Network loopback device
+device bpf #Berkeley packet filter
+device disc #Discard device based on loopback
+device edsc #Ethernet discard device
+device tap #Virtual Ethernet driver
+device tun #Tunnel driver (ppp(8), nos-tun(8))
+device sl #Serial Line IP
+device gre #IP over IP tunneling
+device if_bridge #Bridge interface
+device pf #PF OpenBSD packet-filter firewall
+device pflog #logging support interface for PF
+device pfsync #synchronization interface for PF
+options PF_MPSAFE_UGID #Workaround LOR with user/group rules
+device carp #Common Address Redundancy Protocol
+device enc #IPSec interface (needs FAST_IPSEC)
+device ppp #Point-to-point protocol
+options PPP_BSDCOMP #PPP BSD-compress support
+options PPP_DEFLATE #PPP zlib/deflate/gzip support
+options PPP_FILTER #enable bpf filtering (needs bpf)
+device lagg #Link aggregation interface
+
+device ef # Multiple ethernet frames support
+options ETHER_II # enable Ethernet_II frame
+options ETHER_8023 # enable Ethernet_802.3 (Novell) frame
+options ETHER_8022 # enable Ethernet_802.2 frame
+options ETHER_SNAP # enable Ethernet_802.2/SNAP frame
+
+# for IPv6
+device gif #IPv6 and IPv4 tunneling
+options XBONEHACK
+device faith #for IPv6 and IPv4 translation
+device stf #6to4 IPv6 over IPv4 encapsulation
+
+#
+# Internet family options:
+#
+# MROUTING enables the kernel multicast packet forwarder, which works
+# with mrouted and XORP.
+#
+# IPFIREWALL enables support for IP firewall construction, in
+# conjunction with the `ipfw' program. IPFIREWALL_VERBOSE sends
+# logged packets to the system logger. IPFIREWALL_VERBOSE_LIMIT
+# limits the number of times a matching entry can be logged.
+#
+# WARNING: IPFIREWALL defaults to a policy of "deny ip from any to any"
+# and if you do not add other rules during startup to allow access,
+# YOU WILL LOCK YOURSELF OUT. It is suggested that you set firewall_type=open
+# in /etc/rc.conf when first enabling this feature, then refining the
+# firewall rules in /etc/rc.firewall after you've tested that the new kernel
+# feature works properly.
+#
+# IPFIREWALL_DEFAULT_TO_ACCEPT causes the default rule (at boot) to
+# allow everything. Use with care, if a cracker can crash your
+# firewall machine, they can get to your protected machines. However,
+# if you are using it as an as-needed filter for specific problems as
+# they arise, then this may be for you. Changing the default to 'allow'
+# means that you won't get stuck if the kernel and /sbin/ipfw binary get
+# out of sync.
+#
+# IPDIVERT enables the divert IP sockets, used by ``ipfw divert''. It
+# depends on IPFIREWALL if compiled into the kernel.
+#
+# IPFIREWALL_FORWARD enables changing of the packet destination either
+# to do some sort of policy routing or transparent proxying. Used by
+# ``ipfw forward''. All redirections apply to locally generated
+# packets too. Because of this great care is required when
+# crafting the ruleset.
+#
+# IPFIREWALL_NAT adds support for in kernel nat in ipfw, and it requires
+# LIBALIAS. To build an ipfw kld with nat support enabled, add
+# "CFLAGS+= -DIPFIREWALL_NAT" to your make.conf.
+#
+# IPSTEALTH enables code to support stealth forwarding (i.e., forwarding
+# packets without touching the TTL). This can be useful to hide firewalls
+# from traceroute and similar tools.
+#
+# TCPDEBUG enables code which keeps traces of the TCP state machine
+# for sockets with the SO_DEBUG option set, which can then be examined
+# using the trpt(8) utility.
+#
+options MROUTING # Multicast routing
+options IPFIREWALL #firewall
+options IPFIREWALL_VERBOSE #enable logging to syslogd(8)
+options IPFIREWALL_VERBOSE_LIMIT=100 #limit verbosity
+options IPFIREWALL_DEFAULT_TO_ACCEPT #allow everything by default
+options IPFIREWALL_FORWARD #packet destination changes
+options IPFIREWALL_NAT #ipfw kernel nat support
+options IPDIVERT #divert sockets
+options IPFILTER #ipfilter support
+options IPFILTER_LOG #ipfilter logging
+options IPFILTER_LOOKUP #ipfilter pools
+options IPFILTER_DEFAULT_BLOCK #block all packets by default
+options IPSTEALTH #support for stealth forwarding
+options TCPDEBUG
+
+# The MBUF_STRESS_TEST option enables options which create
+# various random failures / extreme cases related to mbuf
+# functions. See mbuf(9) for a list of available test cases.
+options MBUF_STRESS_TEST
+
+# Statically Link in accept filters
+options ACCEPT_FILTER_DATA
+options ACCEPT_FILTER_HTTP
+
+# TCP_SIGNATURE adds support for RFC 2385 (TCP-MD5) digests. These are
+# carried in TCP option 19. This option is commonly used to protect
+# TCP sessions (e.g. BGP) where IPSEC is not available nor desirable.
+# This is enabled on a per-socket basis using the TCP_MD5SIG socket option.
+# This requires the use of 'device crypto', 'options FAST_IPSEC' or 'options
+# IPSEC', and 'device cryptodev'.
+#options TCP_SIGNATURE #include support for RFC 2385
+
+# DUMMYNET enables the "dummynet" bandwidth limiter. You need IPFIREWALL
+# as well. See dummynet(4) and ipfw(8) for more info. When you run
+# DUMMYNET it is advisable to also have "options HZ=1000" to achieve a
+# smoother scheduling of the traffic.
+options DUMMYNET
+
+# Zero copy sockets support. This enables "zero copy" for sending and
+# receiving data via a socket. The send side works for any type of NIC,
+# the receive side only works for NICs that support MTUs greater than the
+# page size of your architecture and that support header splitting. See
+# zero_copy(9) for more details.
+options ZERO_COPY_SOCKETS
+
+#
+# ATM (HARP version) options
+#
+# ATM_CORE includes the base ATM functionality code. This must be included
+# for ATM support.
+#
+# ATM_IP includes support for running IP over ATM.
+#
+# At least one (and usually only one) of the following signalling managers
+# must be included (note that all signalling managers include PVC support):
+# ATM_SIGPVC includes support for the PVC-only signalling manager `sigpvc'.
+# ATM_SPANS includes support for the `spans' signalling manager, which runs
+# the FORE Systems's proprietary SPANS signalling protocol.
+# ATM_UNI includes support for the `uni30' and `uni31' signalling managers,
+# which run the ATM Forum UNI 3.x signalling protocols.
+#
+# The `hfa' driver provides support for the FORE Systems, Inc.
+# PCA-200E ATM PCI Adapter.
+#
+# The `harp' pseudo-driver makes all NATM interface drivers available to HARP.
+#
+options ATM_CORE #core ATM protocol family
+options ATM_IP #IP over ATM support
+options ATM_SIGPVC #SIGPVC signalling manager
+options ATM_SPANS #SPANS signalling manager
+options ATM_UNI #UNI signalling manager
+
+device hfa #FORE PCA-200E ATM PCI
+device harp #Pseudo-interface for NATM
+
+
+#####################################################################
+# FILESYSTEM OPTIONS
+
+#
+# Only the root, /usr, and /tmp filesystems need be statically
+# compiled; everything else will be automatically loaded at mount
+# time. (Exception: the UFS family--- FFS --- cannot
+# currently be demand-loaded.) Some people still prefer to statically
+# compile other filesystems as well.
+#
+# NB: The PORTAL filesystem is known to be buggy, and WILL panic your
+# system if you attempt to do anything with it. It is included here
+# as an incentive for some enterprising soul to sit down and fix it.
+# The UNION filesystem was known to be buggy in the past. It is now
+# being actively maintained, although there are still some issues being
+# resolved.
+#
+
+# One of these is mandatory:
+options FFS #Fast filesystem
+options NFSCLIENT #Network File System client
+
+# The rest are optional:
+options CD9660 #ISO 9660 filesystem
+options FDESCFS #File descriptor filesystem
+options HPFS #OS/2 File system
+options MSDOSFS #MS DOS File System (FAT, FAT32)
+options NFSSERVER #Network File System server
+options NTFS #NT File System
+options NULLFS #NULL filesystem
+# Broken (depends on NCP):
+#options NWFS #NetWare filesystem
+options PORTALFS #Portal filesystem
+options PROCFS #Process filesystem (requires PSEUDOFS)
+options PSEUDOFS #Pseudo-filesystem framework
+options PSEUDOFS_TRACE #Debugging support for PSEUDOFS
+options SMBFS #SMB/CIFS filesystem
+options UDF #Universal Disk Format
+options UNIONFS #Union filesystem
+# The xFS_ROOT options REQUIRE the associated ``options xFS''
+options NFS_ROOT #NFS usable as root device
+
+# Soft updates is a technique for improving filesystem speed and
+# making abrupt shutdown less risky.
+#
+options SOFTUPDATES
+
+# Extended attributes allow additional data to be associated with files,
+# and is used for ACLs, Capabilities, and MAC labels.
+# See src/sys/ufs/ufs/README.extattr for more information.
+options UFS_EXTATTR
+options UFS_EXTATTR_AUTOSTART
+
+# Access Control List support for UFS filesystems. The current ACL
+# implementation requires extended attribute support, UFS_EXTATTR,
+# for the underlying filesystem.
+# See src/sys/ufs/ufs/README.acls for more information.
+options UFS_ACL
+
+# Directory hashing improves the speed of operations on very large
+# directories at the expense of some memory.
+options UFS_DIRHASH
+
+# Gjournal-based UFS journaling support.
+options UFS_GJOURNAL
+
+# Make space in the kernel for a root filesystem on a md device.
+# Define to the number of kilobytes to reserve for the filesystem.
+options MD_ROOT_SIZE=10
+
+# Make the md device a potential root device, either with preloaded
+# images of type mfs_root or md_root.
+options MD_ROOT
+
+# Disk quotas are supported when this option is enabled.
+options QUOTA #enable disk quotas
+
+# If you are running a machine just as a fileserver for PC and MAC
+# users, using SAMBA or Netatalk, you may consider setting this option
+# and keeping all those users' directories on a filesystem that is
+# mounted with the suiddir option. This gives new files the same
+# ownership as the directory (similar to group). It's a security hole
+# if you let these users run programs, so confine it to file-servers
+# (but it'll save you lots of headaches in those cases). Root owned
+# directories are exempt and X bits are cleared. The suid bit must be
+# set on the directory as well; see chmod(1) PC owners can't see/set
+# ownerships so they keep getting their toes trodden on. This saves
+# you all the support calls as the filesystem it's used on will act as
+# they expect: "It's my dir so it must be my file".
+#
+options SUIDDIR
+
+# NFS options:
+options NFS_MINATTRTIMO=3 # VREG attrib cache timeout in sec
+options NFS_MAXATTRTIMO=60
+options NFS_MINDIRATTRTIMO=30 # VDIR attrib cache timeout in sec
+options NFS_MAXDIRATTRTIMO=60
+options NFS_GATHERDELAY=10 # Default write gather delay (msec)
+options NFS_WDELAYHASHSIZ=16 # and with this
+options NFS_DEBUG # Enable NFS Debugging
+
+# Coda stuff:
+options CODA #CODA filesystem.
+device vcoda #coda minicache <-> venus comm.
+# Use the old Coda 5.x venus<->kernel interface instead of the new
+# realms-aware 6.x protocol.
+#options CODA_COMPAT_5
+
+#
+# Add support for the EXT2FS filesystem of Linux fame. Be a bit
+# careful with this - the ext2fs code has a tendency to lag behind
+# changes and not be exercised very much, so mounting read/write could
+# be dangerous (and even mounting read only could result in panics.)
+#
+options EXT2FS
+
+#
+# Add support for the ReiserFS filesystem (used in Linux). Currently,
+# this is limited to read-only access.
+#
+options REISERFS
+
+#
+# Add support for the SGI XFS filesystem. Currently,
+# this is limited to read-only access.
+#
+options XFS
+
+# Use real implementations of the aio_* system calls. There are numerous
+# stability and security issues in the current aio code that make it
+# unsuitable for inclusion on machines with untrusted local users.
+options VFS_AIO
+
+# Cryptographically secure random number generator; /dev/random
+device random
+
+# The system memory devices; /dev/mem, /dev/kmem
+device mem
+
+# Optional character code conversion support with LIBICONV.
+# Each option requires their base file system and LIBICONV.
+options CD9660_ICONV
+options MSDOSFS_ICONV
+options NTFS_ICONV
+options UDF_ICONV
+
+
+#####################################################################
+# POSIX P1003.1B
+
+# Real time extensions added in the 1993 POSIX
+# _KPOSIX_PRIORITY_SCHEDULING: Build in _POSIX_PRIORITY_SCHEDULING
+
+options _KPOSIX_PRIORITY_SCHEDULING
+# p1003_1b_semaphores are very experimental,
+# user should be ready to assist in debugging if problems arise.
+options P1003_1B_SEMAPHORES
+
+# POSIX message queue
+options P1003_1B_MQUEUE
+
+#####################################################################
+# SECURITY POLICY PARAMETERS
+
+# Support for BSM audit
+options AUDIT
+
+# Support for Mandatory Access Control (MAC):
+options MAC
+options MAC_BIBA
+options MAC_BSDEXTENDED
+options MAC_IFOFF
+options MAC_LOMAC
+options MAC_MLS
+options MAC_NONE
+options MAC_PARTITION
+options MAC_PORTACL
+options MAC_SEEOTHERUIDS
+options MAC_STUB
+options MAC_TEST
+
+
+#####################################################################
+# CLOCK OPTIONS
+
+# The granularity of operation is controlled by the kernel option HZ whose
+# default value (100) means a granularity of 10ms (1s/HZ).
+# Some subsystems, such as DUMMYNET, might benefit from a smaller
+# granularity such as 1ms or less, for a smoother scheduling of packets.
+# Consider, however, that reducing the granularity too much might
+# cause excessive overhead in clock interrupt processing,
+# potentially causing ticks to be missed and thus actually reducing
+# the accuracy of operation.
+
+options HZ=100
+
+# Enable support for the kernel PLL to use an external PPS signal,
+# under supervision of [x]ntpd(8)
+# More info in ntpd documentation: http://www.eecis.udel.edu/~ntp
+
+options PPS_SYNC
+
+
+#####################################################################
+# SCSI DEVICES
+
+# SCSI DEVICE CONFIGURATION
+
+# The SCSI subsystem consists of the `base' SCSI code, a number of
+# high-level SCSI device `type' drivers, and the low-level host-adapter
+# device drivers. The host adapters are listed in the ISA and PCI
+# device configuration sections below.
+#
+# It is possible to wire down your SCSI devices so that a given bus,
+# target, and LUN always come on line as the same device unit. In
+# earlier versions the unit numbers were assigned in the order that
+# the devices were probed on the SCSI bus. This means that if you
+# removed a disk drive, you may have had to rewrite your /etc/fstab
+# file, and also that you had to be careful when adding a new disk
+# as it may have been probed earlier and moved your device configuration
+# around. (See also option GEOM_VOL for a different solution to this
+# problem.)
+
+# This old behavior is maintained as the default behavior. The unit
+# assignment begins with the first non-wired down unit for a device
+# type. For example, if you wire a disk as "da3" then the first
+# non-wired disk will be assigned da4.
+
+# The syntax for wiring down devices is:
+
+hint.scbus.0.at="ahc0"
+hint.scbus.1.at="ahc1"
+hint.scbus.1.bus="0"
+hint.scbus.3.at="ahc2"
+hint.scbus.3.bus="0"
+hint.scbus.2.at="ahc2"
+hint.scbus.2.bus="1"
+hint.da.0.at="scbus0"
+hint.da.0.target="0"
+hint.da.0.unit="0"
+hint.da.1.at="scbus3"
+hint.da.1.target="1"
+hint.da.2.at="scbus2"
+hint.da.2.target="3"
+hint.sa.1.at="scbus1"
+hint.sa.1.target="6"
+
+# "units" (SCSI logical unit number) that are not specified are
+# treated as if specified as LUN 0.
+
+# All SCSI devices allocate as many units as are required.
+
+# The ch driver drives SCSI Media Changer ("jukebox") devices.
+#
+# The da driver drives SCSI Direct Access ("disk") and Optical Media
+# ("WORM") devices.
+#
+# The sa driver drives SCSI Sequential Access ("tape") devices.
+#
+# The cd driver drives SCSI Read Only Direct Access ("cd") devices.
+#
+# The ses driver drives SCSI Environment Services ("ses") and
+# SAF-TE ("SCSI Accessible Fault-Tolerant Enclosure") devices.
+#
+# The pt driver drives SCSI Processor devices.
+#
+# The sg driver provides a passthrough API that is compatible with the
+# Linux SG driver. It will work in conjunction with the COMPAT_LINUX
+# option to run linux SG apps. It can also stand on its own and provide
+# source level API compatiblity for porting apps to FreeBSD.
+#
+# Target Mode support is provided here but also requires that a SIM
+# (SCSI Host Adapter Driver) provide support as well.
+#
+# The targ driver provides target mode support as a Processor type device.
+# It exists to give the minimal context necessary to respond to Inquiry
+# commands. There is a sample user application that shows how the rest
+# of the command support might be done in /usr/share/examples/scsi_target.
+#
+# The targbh driver provides target mode support and exists to respond
+# to incoming commands that do not otherwise have a logical unit assigned
+# to them.
+#
+# The "unknown" device (uk? in pre-2.0.5) is now part of the base SCSI
+# configuration as the "pass" driver.
+
+device scbus #base SCSI code
+device ch #SCSI media changers
+device da #SCSI direct access devices (aka disks)
+device sa #SCSI tapes
+device cd #SCSI CD-ROMs
+device ses #SCSI Environmental Services (and SAF-TE)
+device pt #SCSI processor
+device targ #SCSI Target Mode Code
+device targbh #SCSI Target Mode Blackhole Device
+device pass #CAM passthrough driver
+device sg #Linux SCSI passthrough
+
+# CAM OPTIONS:
+# debugging options:
+# -- NOTE -- If you specify one of the bus/target/lun options, you must
+# specify them all!
+# CAMDEBUG: When defined enables debugging macros
+# CAM_DEBUG_BUS: Debug the given bus. Use -1 to debug all busses.
+# CAM_DEBUG_TARGET: Debug the given target. Use -1 to debug all targets.
+# CAM_DEBUG_LUN: Debug the given lun. Use -1 to debug all luns.
+# CAM_DEBUG_FLAGS: OR together CAM_DEBUG_INFO, CAM_DEBUG_TRACE,
+# CAM_DEBUG_SUBTRACE, and CAM_DEBUG_CDB
+#
+# CAM_MAX_HIGHPOWER: Maximum number of concurrent high power (start unit) cmds
+# SCSI_NO_SENSE_STRINGS: When defined disables sense descriptions
+# SCSI_NO_OP_STRINGS: When defined disables opcode descriptions
+# SCSI_DELAY: The number of MILLISECONDS to freeze the SIM (scsi adapter)
+# queue after a bus reset, and the number of milliseconds to
+# freeze the device queue after a bus device reset. This
+# can be changed at boot and runtime with the
+# kern.cam.scsi_delay tunable/sysctl.
+options CAMDEBUG
+options CAM_DEBUG_BUS=-1
+options CAM_DEBUG_TARGET=-1
+options CAM_DEBUG_LUN=-1
+options CAM_DEBUG_FLAGS=(CAM_DEBUG_INFO|CAM_DEBUG_TRACE|CAM_DEBUG_CDB)
+options CAM_MAX_HIGHPOWER=4
+options SCSI_NO_SENSE_STRINGS
+options SCSI_NO_OP_STRINGS
+options SCSI_DELAY=5000 # Be pessimistic about Joe SCSI device
+
+# Options for the CAM CDROM driver:
+# CHANGER_MIN_BUSY_SECONDS: Guaranteed minimum time quantum for a changer LUN
+# CHANGER_MAX_BUSY_SECONDS: Maximum time quantum per changer LUN, only
+# enforced if there is I/O waiting for another LUN
+# The compiled in defaults for these variables are 2 and 10 seconds,
+# respectively.
+#
+# These can also be changed on the fly with the following sysctl variables:
+# kern.cam.cd.changer.min_busy_seconds
+# kern.cam.cd.changer.max_busy_seconds
+#
+options CHANGER_MIN_BUSY_SECONDS=2
+options CHANGER_MAX_BUSY_SECONDS=10
+
+# Options for the CAM sequential access driver:
+# SA_IO_TIMEOUT: Timeout for read/write/wfm operations, in minutes
+# SA_SPACE_TIMEOUT: Timeout for space operations, in minutes
+# SA_REWIND_TIMEOUT: Timeout for rewind operations, in minutes
+# SA_ERASE_TIMEOUT: Timeout for erase operations, in minutes
+# SA_1FM_AT_EOD: Default to model which only has a default one filemark at EOT.
+options SA_IO_TIMEOUT=4
+options SA_SPACE_TIMEOUT=60
+options SA_REWIND_TIMEOUT=(2*60)
+options SA_ERASE_TIMEOUT=(4*60)
+options SA_1FM_AT_EOD
+
+# Optional timeout for the CAM processor target (pt) device
+# This is specified in seconds. The default is 60 seconds.
+options SCSI_PT_DEFAULT_TIMEOUT=60
+
+# Optional enable of doing SES passthrough on other devices (e.g., disks)
+#
+# Normally disabled because a lot of newer SCSI disks report themselves
+# as having SES capabilities, but this can then clot up attempts to build
+# build a topology with the SES device that's on the box these drives
+# are in....
+options SES_ENABLE_PASSTHROUGH
+
+
+#####################################################################
+# MISCELLANEOUS DEVICES AND OPTIONS
+
+# The `pty' device usually turns out to be ``effectively mandatory'',
+# as it is required for `telnetd', `rlogind', `screen', `emacs', and
+# `xterm', among others.
+
+device pty #Pseudo ttys
+device nmdm #back-to-back tty devices
+device md #Memory/malloc disk
+device snp #Snoop device - to look at pty/vty/etc..
+device ccd #Concatenated disk driver
+device firmware #firmware(9) support
+
+# Kernel side iconv library
+options LIBICONV
+
+# Size of the kernel message buffer. Should be N * pagesize.
+options MSGBUF_SIZE=40960
+
+# Maximum size of a tty or pty input buffer.
+options TTYHOG=8193
+
+
+#####################################################################
+# HARDWARE DEVICE CONFIGURATION
+
+# For ISA the required hints are listed.
+# EISA, MCA, PCI and pccard are self identifying buses, so no hints
+# are needed.
+
+#
+# Mandatory devices:
+#
+
+# These options are valid for other keyboard drivers as well.
+options KBD_DISABLE_KEYMAP_LOAD # refuse to load a keymap
+options KBD_INSTALL_CDEV # install a CDEV entry in /dev
+
+options FB_DEBUG # Frame buffer debugging
+
+device splash # Splash screen and screen saver support
+
+# Various screen savers.
+device blank_saver
+device daemon_saver
+device dragon_saver
+device fade_saver
+device fire_saver
+device green_saver
+device logo_saver
+device rain_saver
+device snake_saver
+device star_saver
+device warp_saver
+
+# The syscons console driver (SCO color console compatible).
+device sc
+hint.sc.0.at="isa"
+options MAXCONS=16 # number of virtual consoles
+options SC_ALT_MOUSE_IMAGE # simplified mouse cursor in text mode
+options SC_DFLT_FONT # compile font in
+makeoptions SC_DFLT_FONT=cp850
+options SC_DISABLE_KDBKEY # disable `debug' key
+options SC_DISABLE_REBOOT # disable reboot key sequence
+options SC_HISTORY_SIZE=200 # number of history buffer lines
+options SC_MOUSE_CHAR=0x3 # char code for text mode mouse cursor
+options SC_PIXEL_MODE # add support for the raster text mode
+
+# The following options will let you change the default colors of syscons.
+options SC_NORM_ATTR=(FG_GREEN|BG_BLACK)
+options SC_NORM_REV_ATTR=(FG_YELLOW|BG_GREEN)
+options SC_KERNEL_CONS_ATTR=(FG_RED|BG_BLACK)
+options SC_KERNEL_CONS_REV_ATTR=(FG_BLACK|BG_RED)
+
+# The following options will let you change the default behaviour of
+# cut-n-paste feature
+options SC_CUT_SPACES2TABS # convert leading spaces into tabs
+options SC_CUT_SEPCHARS=\"x09\" # set of characters that delimit words
+ # (default is single space - \"x20\")
+
+# If you have a two button mouse, you may want to add the following option
+# to use the right button of the mouse to paste text.
+options SC_TWOBUTTON_MOUSE
+
+# You can selectively disable features in syscons.
+options SC_NO_CUTPASTE
+options SC_NO_FONT_LOADING
+options SC_NO_HISTORY
+options SC_NO_MODE_CHANGE
+options SC_NO_SYSMOUSE
+options SC_NO_SUSPEND_VTYSWITCH
+
+# `flags' for sc
+# 0x80 Put the video card in the VESA 800x600 dots, 16 color mode
+# 0x100 Probe for a keyboard device periodically if one is not present
+
+#
+# Optional devices:
+#
+
+#
+# SCSI host adapters:
+#
+# adv: All Narrow SCSI bus AdvanSys controllers.
+# adw: Second Generation AdvanSys controllers including the ADV940UW.
+# aha: Adaptec 154x/1535/1640
+# ahb: Adaptec 174x EISA controllers
+# ahc: Adaptec 274x/284x/2910/293x/294x/394x/3950x/3960x/398X/4944/
+# 19160x/29160x, aic7770/aic78xx
+# ahd: Adaptec 29320/39320 Controllers.
+# aic: Adaptec 6260/6360, APA-1460 (PC Card), NEC PC9801-100 (C-BUS)
+# amd: Support for the AMD 53C974 SCSI host adapter chip as found on devices
+# such as the Tekram DC-390(T).
+# bt: Most Buslogic controllers: including BT-445, BT-54x, BT-64x, BT-74x,
+# BT-75x, BT-946, BT-948, BT-956, BT-958, SDC3211B, SDC3211F, SDC3222F
+# esp: NCR53c9x. Only for SBUS hardware right now.
+# isp: Qlogic ISP 1020, 1040 and 1040B PCI SCSI host adapters,
+# ISP 1240 Dual Ultra SCSI, ISP 1080 and 1280 (Dual) Ultra2,
+# ISP 12160 Ultra3 SCSI,
+# Qlogic ISP 2100 and ISP 2200 1Gb Fibre Channel host adapters.
+# Qlogic ISP 2300 and ISP 2312 2Gb Fibre Channel host adapters.
+# Qlogic ISP 2322 and ISP 6322 2Gb Fibre Channel host adapters.
+# ispfw: Firmware module for Qlogic host adapters
+# mpt: LSI-Logic MPT/Fusion 53c1020 or 53c1030 Ultra4
+# or FC9x9 Fibre Channel host adapters.
+# ncr: NCR 53C810, 53C825 self-contained SCSI host adapters.
+# sym: Symbios/Logic 53C8XX family of PCI-SCSI I/O processors:
+# 53C810, 53C810A, 53C815, 53C825, 53C825A, 53C860, 53C875,
+# 53C876, 53C885, 53C895, 53C895A, 53C896, 53C897, 53C1510D,
+# 53C1010-33, 53C1010-66.
+# trm: Tekram DC395U/UW/F DC315U adapters.
+# wds: WD7000
+
+#
+# Note that the order is important in order for Buslogic ISA/EISA cards to be
+# probed correctly.
+#
+device bt
+hint.bt.0.at="isa"
+hint.bt.0.port="0x330"
+device adv
+hint.adv.0.at="isa"
+device adw
+device aha
+hint.aha.0.at="isa"
+device aic
+hint.aic.0.at="isa"
+device ahb
+device ahc
+device ahd
+device amd
+device esp
+device isp
+hint.isp.0.disable="1"
+hint.isp.0.role="3"
+hint.isp.0.prefer_iomap="1"
+hint.isp.0.prefer_memmap="1"
+hint.isp.0.fwload_disable="1"
+hint.isp.0.ignore_nvram="1"
+hint.isp.0.fullduplex="1"
+hint.isp.0.topology="lport"
+hint.isp.0.topology="nport"
+hint.isp.0.topology="lport-only"
+hint.isp.0.topology="nport-only"
+# we can't get u_int64_t types, nor can we get strings if it's got
+# a leading 0x, hence this silly dodge.
+hint.isp.0.portwnn="w50000000aaaa0000"
+hint.isp.0.nodewnn="w50000000aaaa0001"
+device ispfw
+device mpt
+device ncr
+device sym
+device trm
+device wds
+hint.wds.0.at="isa"
+hint.wds.0.port="0x350"
+hint.wds.0.irq="11"
+hint.wds.0.drq="6"
+
+# The aic7xxx driver will attempt to use memory mapped I/O for all PCI
+# controllers that have it configured only if this option is set. Unfortunately,
+# this doesn't work on some motherboards, which prevents it from being the
+# default.
+options AHC_ALLOW_MEMIO
+
+# Dump the contents of the ahc controller configuration PROM.
+options AHC_DUMP_EEPROM
+
+# Bitmap of units to enable targetmode operations.
+options AHC_TMODE_ENABLE
+
+# Compile in Aic7xxx Debugging code.
+options AHC_DEBUG
+
+# Aic7xxx driver debugging options. See sys/dev/aic7xxx/aic7xxx.h
+options AHC_DEBUG_OPTS
+
+# Print register bitfields in debug output. Adds ~128k to driver
+# See ahc(4).
+options AHC_REG_PRETTY_PRINT
+
+# Compile in aic79xx debugging code.
+options AHD_DEBUG
+
+# Aic79xx driver debugging options. Adds ~215k to driver. See ahd(4).
+options AHD_DEBUG_OPTS=0xFFFFFFFF
+
+# Print human-readable register definitions when debugging
+options AHD_REG_PRETTY_PRINT
+
+# Bitmap of units to enable targetmode operations.
+options AHD_TMODE_ENABLE
+
+# The adw driver will attempt to use memory mapped I/O for all PCI
+# controllers that have it configured only if this option is set.
+options ADW_ALLOW_MEMIO
+
+# Options used in dev/isp/ (Qlogic SCSI/FC driver).
+#
+# ISP_TARGET_MODE - enable target mode operation
+#
+options ISP_TARGET_MODE=1
+#
+# ISP_DEFAULT_ROLES - default role
+# none=0
+# target=1
+# initiator=2
+# both=3 (not supported currently)
+#
+options ISP_DEFAULT_ROLES=2
+
+# Options used in dev/sym/ (Symbios SCSI driver).
+#options SYM_SETUP_LP_PROBE_MAP #-Low Priority Probe Map (bits)
+ # Allows the ncr to take precedence
+ # 1 (1<<0) -> 810a, 860
+ # 2 (1<<1) -> 825a, 875, 885, 895
+ # 4 (1<<2) -> 895a, 896, 1510d
+#options SYM_SETUP_SCSI_DIFF #-HVD support for 825a, 875, 885
+ # disabled:0 (default), enabled:1
+#options SYM_SETUP_PCI_PARITY #-PCI parity checking
+ # disabled:0, enabled:1 (default)
+#options SYM_SETUP_MAX_LUN #-Number of LUNs supported
+ # default:8, range:[1..64]
+
+# The 'dpt' driver provides support for old DPT controllers (http://www.dpt.com/).
+# These have hardware RAID-{0,1,5} support, and do multi-initiator I/O.
+# The DPT controllers are commonly re-licensed under other brand-names -
+# some controllers by Olivetti, Dec, HP, AT&T, SNI, AST, Alphatronic, NEC and
+# Compaq are actually DPT controllers.
+#
+# See src/sys/dev/dpt for debugging and other subtle options.
+# DPT_MEASURE_PERFORMANCE Enables a set of (semi)invasive metrics. Various
+# instruments are enabled. The tools in
+# /usr/sbin/dpt_* assume these to be enabled.
+# DPT_HANDLE_TIMEOUTS Normally device timeouts are handled by the DPT.
+# If you ant the driver to handle timeouts, enable
+# this option. If your system is very busy, this
+# option will create more trouble than solve.
+# DPT_TIMEOUT_FACTOR Used to compute the excessive amount of time to
+# wait when timing out with the above option.
+# DPT_DEBUG_xxxx These are controllable from sys/dev/dpt/dpt.h
+# DPT_LOST_IRQ When enabled, will try, once per second, to catch
+# any interrupt that got lost. Seems to help in some
+# DPT-firmware/Motherboard combinations. Minimal
+# cost, great benefit.
+# DPT_RESET_HBA Make "reset" actually reset the controller
+# instead of fudging it. Only enable this if you
+# are 100% certain you need it.
+
+device dpt
+
+# DPT options
+#!CAM# options DPT_MEASURE_PERFORMANCE
+#!CAM# options DPT_HANDLE_TIMEOUTS
+options DPT_TIMEOUT_FACTOR=4
+options DPT_LOST_IRQ
+options DPT_RESET_HBA
+
+#
+# Compaq "CISS" RAID controllers (SmartRAID 5* series)
+# These controllers have a SCSI-like interface, and require the
+# CAM infrastructure.
+#
+device ciss
+
+#
+# Intel Integrated RAID controllers.
+# This driver was developed and is maintained by Intel. Contacts
+# at Intel for this driver are
+# "Kannanthanam, Boji T" <boji.t.kannanthanam@intel.com> and
+# "Leubner, Achim" <achim.leubner@intel.com>.
+#
+device iir
+
+#
+# Mylex AcceleRAID and eXtremeRAID controllers with v6 and later
+# firmware. These controllers have a SCSI-like interface, and require
+# the CAM infrastructure.
+#
+device mly
+
+#
+# Compaq Smart RAID, Mylex DAC960 and AMI MegaRAID controllers. Only
+# one entry is needed; the code will find and configure all supported
+# controllers.
+#
+device ida # Compaq Smart RAID
+device mlx # Mylex DAC960
+device amr # AMI MegaRAID
+device mfi # LSI MegaRAID SAS
+device mfip # LSI MegaRAID SAS passthrough, requires CAM
+options MFI_DEBUG
+
+#
+# 3ware ATA RAID
+#
+device twe # 3ware ATA RAID
+
+#
+# The 'ATA' driver supports all ATA and ATAPI devices, including PC Card
+# devices. You only need one "device ata" for it to find all
+# PCI and PC Card ATA/ATAPI devices on modern machines.
+device ata
+device atadisk # ATA disk drives
+device ataraid # ATA RAID drives
+device atapicd # ATAPI CDROM drives
+device atapifd # ATAPI floppy drives
+device atapist # ATAPI tape drives
+device atapicam # emulate ATAPI devices as SCSI ditto via CAM
+ # needs CAM to be present (scbus & pass)
+#
+# For older non-PCI, non-PnPBIOS systems, these are the hints lines to add:
+hint.ata.0.at="isa"
+hint.ata.0.port="0x1f0"
+hint.ata.0.irq="14"
+hint.ata.1.at="isa"
+hint.ata.1.port="0x170"
+hint.ata.1.irq="15"
+
+#
+# The following options are valid on the ATA driver:
+#
+# ATA_STATIC_ID: controller numbering is static ie depends on location
+# else the device numbers are dynamically allocated.
+
+options ATA_STATIC_ID
+
+#
+# Standard floppy disk controllers and floppy tapes, supports
+# the Y-E DATA External FDD (PC Card)
+#
+device fdc
+hint.fdc.0.at="isa"
+hint.fdc.0.port="0x3F0"
+hint.fdc.0.irq="6"
+hint.fdc.0.drq="2"
+#
+# FDC_DEBUG enables floppy debugging. Since the debug output is huge, you
+# gotta turn it actually on by setting the variable fd_debug with DDB,
+# however.
+options FDC_DEBUG
+#
+# Activate this line if you happen to have an Insight floppy tape.
+# Probing them proved to be dangerous for people with floppy disks only,
+# so it's "hidden" behind a flag:
+#hint.fdc.0.flags="1"
+
+# Specify floppy devices
+hint.fd.0.at="fdc0"
+hint.fd.0.drive="0"
+hint.fd.1.at="fdc0"
+hint.fd.1.drive="1"
+
+#
+# uart: newbusified driver for serial interfaces. It consolidates the sio(4),
+# sab(4) and zs(4) drivers.
+#
+device uart
+
+# Options for uart(4)
+options UART_PPS_ON_CTS # Do time pulse capturing using CTS
+ # instead of DCD.
+
+# The following hint should only be used for pure ISA devices. It is not
+# needed otherwise. Use of hints is strongly discouraged.
+hint.uart.0.at="isa"
+
+# The following 3 hints are used when the UART is a system device (i.e., a
+# console or debug port), but only on platforms that don't have any other
+# means to pass the information to the kernel. The unit number of the hint
+# is only used to bundle the hints together. There is no relation to the
+# unit number of the probed UART.
+hint.uart.0.port="0x3f8"
+hint.uart.0.flags="0x10"
+hint.uart.0.baud="115200"
+
+# `flags' for serial drivers that support consoles like sio(4) and uart(4):
+# 0x10 enable console support for this unit. Other console flags
+# (if applicable) are ignored unless this is set. Enabling
+# console support does not make the unit the preferred console.
+# Boot with -h or set boot_serial=YES in the loader. For sio(4)
+# specifically, the 0x20 flag can also be set (see above).
+# Currently, at most one unit can have console support; the
+# first one (in config file order) with this flag set is
+# preferred. Setting this flag for sio0 gives the old behaviour.
+# 0x80 use this port for serial line gdb support in ddb. Also known
+# as debug port.
+#
+
+# Options for serial drivers that support consoles:
+options BREAK_TO_DEBUGGER # A BREAK on a serial console goes to
+ # ddb, if available.
+
+# Solaris implements a new BREAK which is initiated by a character
+# sequence CR ~ ^b which is similar to a familiar pattern used on
+# Sun servers by the Remote Console.
+options ALT_BREAK_TO_DEBUGGER
+
+# Serial Communications Controller
+# Supports the Siemens SAB 82532 and Zilog Z8530 multi-channel
+# communications controllers.
+device scc
+
+# PCI Universal Communications driver
+# Supports various multi port PCI I/O cards.
+device puc
+
+#
+# Network interfaces:
+#
+# MII bus support is required for some PCI 10/100 ethernet NICs,
+# namely those which use MII-compliant transceivers or implement
+# transceiver control interfaces that operate like an MII. Adding
+# "device miibus0" to the kernel config pulls in support for
+# the generic miibus API and all of the PHY drivers, including a
+# generic one for PHYs that aren't specifically handled by an
+# individual driver.
+device miibus
+
+# an: Aironet 4500/4800 802.11 wireless adapters. Supports the PCMCIA,
+# PCI and ISA varieties.
+# awi: Support for IEEE 802.11 PC Card devices using the AMD Am79C930 and
+# Harris (Intersil) Chipset with PCnetMobile firmware by AMD.
+# bce: Broadcom NetXtreme II (BCM5706/BCM5708) PCI/PCIe Gigabit Ethernet
+# adapters.
+# bfe: Broadcom BCM4401 Ethernet adapter.
+# bge: Support for gigabit ethernet adapters based on the Broadcom
+# BCM570x family of controllers, including the 3Com 3c996-T,
+# the Netgear GA302T, the SysKonnect SK-9D21 and SK-9D41, and
+# the embedded gigE NICs on Dell PowerEdge 2550 servers.
+# cm: Arcnet SMC COM90c26 / SMC COM90c56
+# (and SMC COM90c66 in '56 compatibility mode) adapters.
+# cnw: Xircom CNW/Netware Airsurfer PC Card adapter
+# dc: Support for PCI fast ethernet adapters based on the DEC/Intel 21143
+# and various workalikes including:
+# the ADMtek AL981 Comet and AN985 Centaur, the ASIX Electronics
+# AX88140A and AX88141, the Davicom DM9100 and DM9102, the Lite-On
+# 82c168 and 82c169 PNIC, the Lite-On/Macronix LC82C115 PNIC II
+# and the Macronix 98713/98713A/98715/98715A/98725 PMAC. This driver
+# replaces the old al, ax, dm, pn and mx drivers. List of brands:
+# Digital DE500-BA, Kingston KNE100TX, D-Link DFE-570TX, SOHOware SFA110,
+# SVEC PN102-TX, CNet Pro110B, 120A, and 120B, Compex RL100-TX,
+# LinkSys LNE100TX, LNE100TX V2.0, Jaton XpressNet, Alfa Inc GFC2204,
+# KNE110TX.
+# de: Digital Equipment DC21040
+# em: Intel Pro/1000 Gigabit Ethernet 82542, 82543, 82544 based adapters.
+# ep: 3Com 3C509, 3C529, 3C556, 3C562D, 3C563D, 3C572, 3C574X, 3C579, 3C589
+# and PC Card devices using these chipsets.
+# ex: Intel EtherExpress Pro/10 and other i82595-based adapters,
+# Olicom Ethernet PC Card devices.
+# fe: Fujitsu MB86960A/MB86965A Ethernet
+# fea: DEC DEFEA EISA FDDI adapter
+# fpa: Support for the Digital DEFPA PCI FDDI. `device fddi' is also needed.
+# fxp: Intel EtherExpress Pro/100B
+# (hint of prefer_iomap can be done to prefer I/O instead of Mem mapping)
+# hme: Sun HME (Happy Meal Ethernet)
+# le: AMD Am7900 LANCE and Am79C9xx PCnet
+# lge: Support for PCI gigabit ethernet adapters based on the Level 1
+# LXT1001 NetCellerator chipset. This includes the D-Link DGE-500SX,
+# SMC TigerCard 1000 (SMC9462SX), and some Addtron cards.
+# msk: Support for gigabit ethernet adapters based on the Marvell/SysKonnect
+# Yukon II Gigabit controllers, including 88E8021, 88E8022, 88E8061,
+# 88E8062, 88E8035, 88E8036, 88E8038, 88E8050, 88E8052, 88E8053,
+# 88E8055, 88E8056 and D-Link 560T/550SX.
+# lmc: Support for the LMC/SBE wide-area network interface cards.
+# my: Myson Fast Ethernet (MTD80X, MTD89X)
+# nge: Support for PCI gigabit ethernet adapters based on the National
+# Semiconductor DP83820 and DP83821 chipset. This includes the
+# SMC EZ Card 1000 (SMC9462TX), D-Link DGE-500T, Asante FriendlyNet
+# GigaNIX 1000TA and 1000TPC, the Addtron AEG320T, the Surecom
+# EP-320G-TX and the Netgear GA622T.
+# pcn: Support for PCI fast ethernet adapters based on the AMD Am79c97x
+# PCnet-FAST, PCnet-FAST+, PCnet-FAST III, PCnet-PRO and PCnet-Home
+# chipsets. These can also be handled by the le(4) driver if the
+# pcn(4) driver is left out of the kernel. The le(4) driver does not
+# support the additional features like the MII bus and burst mode of
+# the PCnet-FAST and greater chipsets though.
+# rl: Support for PCI fast ethernet adapters based on the RealTek 8129/8139
+# chipset. Note that the RealTek driver defaults to using programmed
+# I/O to do register accesses because memory mapped mode seems to cause
+# severe lockups on SMP hardware. This driver also supports the
+# Accton EN1207D `Cheetah' adapter, which uses a chip called
+# the MPX 5030/5038, which is either a RealTek in disguise or a
+# RealTek workalike. Note that the D-Link DFE-530TX+ uses the RealTek
+# chipset and is supported by this driver, not the 'vr' driver.
+# sf: Support for Adaptec Duralink PCI fast ethernet adapters based on the
+# Adaptec AIC-6915 "starfire" controller.
+# This includes dual and quad port cards, as well as one 100baseFX card.
+# Most of these are 64-bit PCI devices, except for one single port
+# card which is 32-bit.
+# sis: Support for NICs based on the Silicon Integrated Systems SiS 900,
+# SiS 7016 and NS DP83815 PCI fast ethernet controller chips.
+# sbsh: Support for Granch SBNI16 SHDSL modem PCI adapters
+# sk: Support for the SysKonnect SK-984x series PCI gigabit ethernet NICs.
+# This includes the SK-9841 and SK-9842 single port cards (single mode
+# and multimode fiber) and the SK-9843 and SK-9844 dual port cards
+# (also single mode and multimode).
+# The driver will autodetect the number of ports on the card and
+# attach each one as a separate network interface.
+# sn: Support for ISA and PC Card Ethernet devices using the
+# SMC91C90/92/94/95 chips.
+# ste: Sundance Technologies ST201 PCI fast ethernet controller, includes
+# the D-Link DFE-550TX.
+# stge: Support for gigabit ethernet adapters based on the Sundance/Tamarack
+# TC9021 family of controllers, including the Sundance ST2021/ST2023,
+# the Sundance/Tamarack TC9021, the D-Link DL-4000 and ASUS NX1101.
+# ti: Support for PCI gigabit ethernet NICs based on the Alteon Networks
+# Tigon 1 and Tigon 2 chipsets. This includes the Alteon AceNIC, the
+# 3Com 3c985, the Netgear GA620 and various others. Note that you will
+# probably want to bump up kern.ipc.nmbclusters a lot to use this driver.
+# tl: Support for the Texas Instruments TNETE100 series 'ThunderLAN'
+# cards and integrated ethernet controllers. This includes several
+# Compaq Netelligent 10/100 cards and the built-in ethernet controllers
+# in several Compaq Prosignia, Proliant and Deskpro systems. It also
+# supports several Olicom 10Mbps and 10/100 boards.
+# tx: SMC 9432 TX, BTX and FTX cards. (SMC EtherPower II series)
+# txp: Support for 3Com 3cR990 cards with the "Typhoon" chipset
+# vr: Support for various fast ethernet adapters based on the VIA
+# Technologies VT3043 `Rhine I' and VT86C100A `Rhine II' chips,
+# including the D-Link DFE530TX (see 'rl' for DFE530TX+), the Hawking
+# Technologies PN102TX, and the AOpen/Acer ALN-320.
+# vx: 3Com 3C590 and 3C595
+# wb: Support for fast ethernet adapters based on the Winbond W89C840F chip.
+# Note: this is not the same as the Winbond W89C940F, which is a
+# NE2000 clone.
+# wi: Lucent WaveLAN/IEEE 802.11 PCMCIA adapters. Note: this supports both
+# the PCMCIA and ISA cards: the ISA card is really a PCMCIA to ISA
+# bridge with a PCMCIA adapter plugged into it.
+# xe: Xircom/Intel EtherExpress Pro100/16 PC Card ethernet controller,
+# Accton Fast EtherCard-16, Compaq Netelligent 10/100 PC Card,
+# Toshiba 10/100 Ethernet PC Card, Xircom 16-bit Ethernet + Modem 56
+# xl: Support for the 3Com 3c900, 3c905, 3c905B and 3c905C (Fast)
+# Etherlink XL cards and integrated controllers. This includes the
+# integrated 3c905B-TX chips in certain Dell Optiplex and Dell
+# Precision desktop machines and the integrated 3c905-TX chips
+# in Dell Latitude laptop docking stations.
+# Also supported: 3Com 3c980(C)-TX, 3Com 3cSOHO100-TX, 3Com 3c450-TX
+
+# Order for ISA/EISA devices is important here
+
+device cm
+hint.cm.0.at="isa"
+hint.cm.0.port="0x2e0"
+hint.cm.0.irq="9"
+hint.cm.0.maddr="0xdc000"
+device ep
+device ex
+device fe
+hint.fe.0.at="isa"
+hint.fe.0.port="0x300"
+device fea
+device sn
+hint.sn.0.at="isa"
+hint.sn.0.port="0x300"
+hint.sn.0.irq="10"
+device an
+device awi
+device cnw
+device wi
+device xe
+
+# PCI Ethernet NICs that use the common MII bus controller code.
+device bce # Broadcom BCM5706/BCM5708 Gigabit Ethernet
+device bfe # Broadcom BCM440x 10/100 Ethernet
+device bge # Broadcom BCM570xx Gigabit Ethernet
+device cxgb # Chelsio T3 10 Gigabit Ethernet
+device dc # DEC/Intel 21143 and various workalikes
+device fxp # Intel EtherExpress PRO/100B (82557, 82558)
+hint.fxp.0.prefer_iomap="0"
+device hme # Sun HME (Happy Meal Ethernet)
+device lge # Level 1 LXT1001 gigabit Ethernet
+device my # Myson Fast Ethernet (MTD80X, MTD89X)
+device nge # NatSemi DP83820 gigabit Ethernet
+device rl # RealTek 8129/8139
+device pcn # AMD Am79C97x PCI 10/100 NICs
+device sf # Adaptec AIC-6915 (``Starfire'')
+device sbsh # Granch SBNI16 SHDSL modem
+device sis # Silicon Integrated Systems SiS 900/SiS 7016
+device sk # SysKonnect SK-984x & SK-982x gigabit Ethernet
+device ste # Sundance ST201 (D-Link DFE-550TX)
+device ti # Alteon Networks Tigon I/II gigabit Ethernet
+device tl # Texas Instruments ThunderLAN
+device tx # SMC EtherPower II (83c170 ``EPIC'')
+device vr # VIA Rhine, Rhine II
+device wb # Winbond W89C840F
+device xl # 3Com 3c90x (``Boomerang'', ``Cyclone'')
+
+# PCI Ethernet NICs.
+device de # DEC/Intel DC21x4x (``Tulip'')
+device le # AMD Am7900 LANCE and Am79C9xx PCnet
+device nxge # Neterion Xframe 10GbE Server/Storage Adapter
+device txp # 3Com 3cR990 (``Typhoon'')
+device vx # 3Com 3c590, 3c595 (``Vortex'')
+
+# PCI FDDI NICs.
+device fpa
+
+# PCI WAN adapters.
+device lmc
+
+# Use "private" jumbo buffers allocated exclusively for the ti(4) driver.
+# This option is incompatible with the TI_JUMBO_HDRSPLIT option below.
+#options TI_PRIVATE_JUMBOS
+# Turn on the header splitting option for the ti(4) driver firmware. This
+# only works for Tigon II chips, and has no effect for Tigon I chips.
+options TI_JUMBO_HDRSPLIT
+
+# These two options allow manipulating the mbuf cluster size and mbuf size,
+# respectively. Be very careful with NIC driver modules when changing
+# these from their default values, because that can potentially cause a
+# mismatch between the mbuf size assumed by the kernel and the mbuf size
+# assumed by a module. The only driver that currently has the ability to
+# detect a mismatch is ti(4).
+options MCLSHIFT=12 # mbuf cluster shift in bits, 12 == 4KB
+options MSIZE=512 # mbuf size in bytes
+
+#
+# ATM related options (Cranor version)
+# (note: this driver cannot be used with the HARP ATM stack)
+#
+# The `en' device provides support for Efficient Networks (ENI)
+# ENI-155 PCI midway cards, and the Adaptec 155Mbps PCI ATM cards (ANA-59x0).
+#
+# The `hatm' device provides support for Fore/Marconi HE155 and HE622
+# ATM PCI cards.
+#
+# The `fatm' device provides support for Fore PCA200E ATM PCI cards.
+#
+# The `patm' device provides support for IDT77252 based cards like
+# ProSum's ProATM-155 and ProATM-25 and IDT's evaluation boards.
+#
+# atm device provides generic atm functions and is required for
+# atm devices.
+# NATM enables the netnatm protocol family that can be used to
+# bypass TCP/IP.
+#
+# utopia provides the access to the ATM PHY chips and is required for en,
+# hatm and fatm.
+#
+# the current driver supports only PVC operations (no atm-arp, no multicast).
+# for more details, please read the original documents at
+# http://www.ccrc.wustl.edu/pub/chuck/tech/bsdatm/bsdatm.html
+#
+device atm
+device en
+device fatm #Fore PCA200E
+device hatm #Fore/Marconi HE155/622
+device patm #IDT77252 cards (ProATM and IDT)
+device utopia #ATM PHY driver
+options NATM #native ATM
+
+options LIBMBPOOL #needed by patm, iatm
+
+#
+# Sound drivers
+#
+# sound: The generic sound driver.
+#
+
+device sound
+
+#
+# snd_*: Device-specific drivers.
+#
+# The flags of the device tells the device a bit more info about the
+# device that normally is obtained through the PnP interface.
+# bit 2..0 secondary DMA channel;
+# bit 4 set if the board uses two dma channels;
+# bit 15..8 board type, overrides autodetection; leave it
+# zero if don't know what to put in (and you don't,
+# since this is unsupported at the moment...).
+#
+# snd_ad1816: Analog Devices AD1816 ISA PnP/non-PnP.
+# snd_als4000: Avance Logic ALS4000 PCI.
+# snd_atiixp: ATI IXP 200/300/400 PCI.
+# snd_au88x0 Aureal Vortex 1/2/Advantage PCI. This driver
+# lacks support for playback and recording.
+# snd_audiocs: Crystal Semiconductor CS4231 SBus/EBus. Only
+# for sparc64.
+# snd_cmi: CMedia CMI8338/CMI8738 PCI.
+# snd_cs4281: Crystal Semiconductor CS4281 PCI.
+# snd_csa: Crystal Semiconductor CS461x/428x PCI. (except
+# 4281)
+# snd_ds1: Yamaha DS-1 PCI.
+# snd_emu10k1: Creative EMU10K1 PCI and EMU10K2 (Audigy) PCI.
+# snd_emu10kx: Creative SoundBlaster Live! and Audigy
+# snd_envy24: VIA Envy24 and compatible, needs snd_spicds.
+# snd_envy24ht: VIA Envy24HT and compatible, needs snd_spicds.
+# snd_es137x: Ensoniq AudioPCI ES137x PCI.
+# snd_ess: Ensoniq ESS ISA PnP/non-PnP, to be used in
+# conjunction with snd_sbc.
+# snd_fm801: Forte Media FM801 PCI.
+# snd_gusc: Gravis UltraSound ISA PnP/non-PnP.
+# snd_hda: Intel High Definition Audio (Controller) and
+# compatible.
+# snd_ich: Intel ICH PCI and some more audio controllers
+# embedded in a chipset, for example nVidia
+# nForce controllers.
+# snd_maestro: ESS Technology Maestro-1/2x PCI.
+# snd_maestro3: ESS Technology Maestro-3/Allegro PCI.
+# snd_mss: Microsoft Sound System ISA PnP/non-PnP.
+# snd_neomagic: Neomagic 256 AV/ZX PCI.
+# snd_sb16: Creative SoundBlaster16, to be used in
+# conjunction with snd_sbc.
+# snd_sb8: Creative SoundBlaster (pre-16), to be used in
+# conjunction with snd_sbc.
+# snd_sbc: Creative SoundBlaster ISA PnP/non-PnP.
+# Supports ESS and Avance ISA chips as well.
+# snd_spicds: SPI codec driver, needed by Envy24/Envy24HT drivers.
+# snd_solo: ESS Solo-1x PCI.
+# snd_t4dwave: Trident 4DWave DX/NX PCI, Sis 7018 PCI and Acer Labs
+# M5451 PCI.
+# snd_via8233: VIA VT8233x PCI.
+# snd_via82c686: VIA VT82C686A PCI.
+# snd_vibes: S3 Sonicvibes PCI.
+# snd_uaudio: USB audio.
+
+device snd_ad1816
+device snd_als4000
+device snd_atiixp
+#device snd_au88x0
+#device snd_audiocs
+device snd_cmi
+device snd_cs4281
+device snd_csa
+device snd_ds1
+device snd_emu10k1
+device snd_emu10kx
+options SND_EMU10KX_MULTICHANNEL
+device snd_envy24
+device snd_envy24ht
+device snd_es137x
+device snd_ess
+device snd_fm801
+device snd_gusc
+device snd_hda
+device snd_ich
+device snd_maestro
+device snd_maestro3
+device snd_mss
+device snd_neomagic
+device snd_sb16
+device snd_sb8
+device snd_sbc
+device snd_solo
+device snd_spicds
+device snd_t4dwave
+device snd_via8233
+device snd_via82c686
+device snd_vibes
+device snd_uaudio
+
+# For non-PnP sound cards:
+hint.pcm.0.at="isa"
+hint.pcm.0.irq="10"
+hint.pcm.0.drq="1"
+hint.pcm.0.flags="0x0"
+hint.sbc.0.at="isa"
+hint.sbc.0.port="0x220"
+hint.sbc.0.irq="5"
+hint.sbc.0.drq="1"
+hint.sbc.0.flags="0x15"
+hint.gusc.0.at="isa"
+hint.gusc.0.port="0x220"
+hint.gusc.0.irq="5"
+hint.gusc.0.drq="1"
+hint.gusc.0.flags="0x13"
+
+#
+# IEEE-488 hardware:
+# pcii: PCIIA cards (uPD7210 based isa cards)
+# tnt4882: National Instruments PCI-GPIB card.
+
+device pcii
+hint.pcii.0.at="isa"
+hint.pcii.0.port="0x2e1"
+hint.pcii.0.irq="5"
+hint.pcii.0.drq="1"
+
+device tnt4882
+
+#
+# Miscellaneous hardware:
+#
+# scd: Sony CD-ROM using proprietary (non-ATAPI) interface
+# mcd: Mitsumi CD-ROM using proprietary (non-ATAPI) interface
+# bktr: Brooktree bt848/848a/849a/878/879 video capture and TV Tuner board
+# cy: Cyclades serial driver
+# joy: joystick (including IO DATA PCJOY PC Card joystick)
+# rc: RISCom/8 multiport card
+# rp: Comtrol Rocketport(ISA/PCI) - single card
+# si: Specialix SI/XIO 4-32 port terminal multiplexor
+
+# Notes on the Comtrol Rocketport driver:
+#
+# The exact values used for rp0 depend on how many boards you have
+# in the system. The manufacturer's sample configs are listed as:
+#
+# device rp # core driver support
+#
+# Comtrol Rocketport ISA single card
+# hint.rp.0.at="isa"
+# hint.rp.0.port="0x280"
+#
+# If instead you have two ISA cards, one installed at 0x100 and the
+# second installed at 0x180, then you should add the following to
+# your kernel probe hints:
+# hint.rp.0.at="isa"
+# hint.rp.0.port="0x100"
+# hint.rp.1.at="isa"
+# hint.rp.1.port="0x180"
+#
+# For 4 ISA cards, it might be something like this:
+# hint.rp.0.at="isa"
+# hint.rp.0.port="0x180"
+# hint.rp.1.at="isa"
+# hint.rp.1.port="0x100"
+# hint.rp.2.at="isa"
+# hint.rp.2.port="0x340"
+# hint.rp.3.at="isa"
+# hint.rp.3.port="0x240"
+#
+# For PCI cards, you need no hints.
+
+# Mitsumi CD-ROM
+device mcd
+hint.mcd.0.at="isa"
+hint.mcd.0.port="0x300"
+# for the Sony CDU31/33A CDROM
+device scd
+hint.scd.0.at="isa"
+hint.scd.0.port="0x230"
+device joy # PnP aware, hints for non-PnP only
+hint.joy.0.at="isa"
+hint.joy.0.port="0x201"
+device rc
+hint.rc.0.at="isa"
+hint.rc.0.port="0x220"
+hint.rc.0.irq="12"
+device rp
+hint.rp.0.at="isa"
+hint.rp.0.port="0x280"
+device si
+options SI_DEBUG
+hint.si.0.at="isa"
+hint.si.0.maddr="0xd0000"
+hint.si.0.irq="12"
+
+#
+# The 'bktr' device is a PCI video capture device using the Brooktree
+# bt848/bt848a/bt849a/bt878/bt879 chipset. When used with a TV Tuner it forms a
+# TV card, e.g. Miro PC/TV, Hauppauge WinCast/TV WinTV, VideoLogic Captivator,
+# Intel Smart Video III, AverMedia, IMS Turbo, FlyVideo.
+#
+# options OVERRIDE_CARD=xxx
+# options OVERRIDE_TUNER=xxx
+# options OVERRIDE_MSP=1
+# options OVERRIDE_DBX=1
+# These options can be used to override the auto detection
+# The current values for xxx are found in src/sys/dev/bktr/bktr_card.h
+# Using sysctl(8) run-time overrides on a per-card basis can be made
+#
+# options BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_PAL
+# or
+# options BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_NTSC
+# Specifies the default video capture mode.
+# This is required for Dual Crystal (28&35Mhz) boards where PAL is used
+# to prevent hangs during initialisation, e.g. VideoLogic Captivator PCI.
+#
+# options BKTR_USE_PLL
+# This is required for PAL or SECAM boards with a 28Mhz crystal and no 35Mhz
+# crystal, e.g. some new Bt878 cards.
+#
+# options BKTR_GPIO_ACCESS
+# This enable IOCTLs which give user level access to the GPIO port.
+#
+# options BKTR_NO_MSP_RESET
+# Prevents the MSP34xx reset. Good if you initialise the MSP in another OS first
+#
+# options BKTR_430_FX_MODE
+# Switch Bt878/879 cards into Intel 430FX chipset compatibility mode.
+#
+# options BKTR_SIS_VIA_MODE
+# Switch Bt878/879 cards into SIS/VIA chipset compatibility mode which is
+# needed for some old SiS and VIA chipset motherboards.
+# This also allows Bt878/879 chips to work on old OPTi (<1997) chipset
+# motherboards and motherboards with bad or incomplete PCI 2.1 support.
+# As a rough guess, old = before 1998
+#
+# options BKTR_NEW_MSP34XX_DRIVER
+# Use new, more complete initialization scheme for the msp34* soundchip.
+# Should fix stereo autodetection if the old driver does only output
+# mono sound.
+
+#
+# options BKTR_USE_FREEBSD_SMBUS
+# Compile with FreeBSD SMBus implementation
+#
+# Brooktree driver has been ported to the new I2C framework. Thus,
+# you'll need to have the following 3 lines in the kernel config.
+# device smbus
+# device iicbus
+# device iicbb
+# device iicsmb
+# The iic and smb devices are only needed if you want to control other
+# I2C slaves connected to the external connector of some cards.
+#
+device bktr
+
+#
+# PC Card/PCMCIA and Cardbus
+#
+# pccbb: pci/cardbus bridge implementing YENTA interface
+# pccard: pccard slots
+# cardbus: cardbus slots
+device cbb
+device pccard
+device cardbus
+
+#
+# SMB bus
+#
+# System Management Bus support is provided by the 'smbus' device.
+# Access to the SMBus device is via the 'smb' device (/dev/smb*),
+# which is a child of the 'smbus' device.
+#
+# Supported devices:
+# smb standard I/O through /dev/smb*
+#
+# Supported SMB interfaces:
+# iicsmb I2C to SMB bridge with any iicbus interface
+# bktr brooktree848 I2C hardware interface
+# intpm Intel PIIX4 (82371AB, 82443MX) Power Management Unit
+# alpm Acer Aladdin-IV/V/Pro2 Power Management Unit
+# ichsmb Intel ICH SMBus controller chips (82801AA, 82801AB, 82801BA)
+# viapm VIA VT82C586B/596B/686A and VT8233 Power Management Unit
+# amdpm AMD 756 Power Management Unit
+# amdsmb AMD 8111 SMBus 2.0 Controller
+# nfpm NVIDIA nForce Power Management Unit
+# nfsmb NVIDIA nForce2/3/4 MCP SMBus 2.0 Controller
+#
+device smbus # Bus support, required for smb below.
+
+device intpm
+device alpm
+device ichsmb
+device viapm
+device amdpm
+device amdsmb
+device nfpm
+device nfsmb
+
+device smb
+
+#
+# I2C Bus
+#
+# Philips i2c bus support is provided by the `iicbus' device.
+#
+# Supported devices:
+# ic i2c network interface
+# iic i2c standard io
+# iicsmb i2c to smb bridge. Allow i2c i/o with smb commands.
+#
+# Supported interfaces:
+# bktr brooktree848 I2C software interface
+#
+# Other:
+# iicbb generic I2C bit-banging code (needed by lpbb, bktr)
+#
+device iicbus # Bus support, required for ic/iic/iicsmb below.
+device iicbb
+
+device ic
+device iic
+device iicsmb # smb over i2c bridge
+
+# Parallel-Port Bus
+#
+# Parallel port bus support is provided by the `ppbus' device.
+# Multiple devices may be attached to the parallel port, devices
+# are automatically probed and attached when found.
+#
+# Supported devices:
+# vpo Iomega Zip Drive
+# Requires SCSI disk support ('scbus' and 'da'), best
+# performance is achieved with ports in EPP 1.9 mode.
+# lpt Parallel Printer
+# plip Parallel network interface
+# ppi General-purpose I/O ("Geek Port") + IEEE1284 I/O
+# pps Pulse per second Timing Interface
+# lpbb Philips official parallel port I2C bit-banging interface
+#
+# Supported interfaces:
+# ppc ISA-bus parallel port interfaces.
+#
+
+options PPC_PROBE_CHIPSET # Enable chipset specific detection
+ # (see flags in ppc(4))
+options DEBUG_1284 # IEEE1284 signaling protocol debug
+options PERIPH_1284 # Makes your computer act as an IEEE1284
+ # compliant peripheral
+options DONTPROBE_1284 # Avoid boot detection of PnP parallel devices
+options VP0_DEBUG # ZIP/ZIP+ debug
+options LPT_DEBUG # Printer driver debug
+options PPC_DEBUG # Parallel chipset level debug
+options PLIP_DEBUG # Parallel network IP interface debug
+options PCFCLOCK_VERBOSE # Verbose pcfclock driver
+options PCFCLOCK_MAX_RETRIES=5 # Maximum read tries (default 10)
+
+device ppc
+hint.ppc.0.at="isa"
+hint.ppc.0.irq="7"
+device ppbus
+device vpo
+device lpt
+device plip
+device ppi
+device pps
+device lpbb
+device pcfclock
+
+# Kernel BOOTP support
+
+options BOOTP # Use BOOTP to obtain IP address/hostname
+ # Requires NFSCLIENT and NFS_ROOT
+options BOOTP_NFSROOT # NFS mount root filesystem using BOOTP info
+options BOOTP_NFSV3 # Use NFS v3 to NFS mount root
+options BOOTP_COMPAT # Workaround for broken bootp daemons.
+options BOOTP_WIRED_TO=fxp0 # Use interface fxp0 for BOOTP
+
+#
+# Add software watchdog routines.
+#
+options SW_WATCHDOG
+
+#
+# Disable swapping of stack pages. This option removes all
+# code which actually performs swapping, so it's not possible to turn
+# it back on at run-time.
+#
+# This is sometimes usable for systems which don't have any swap space
+# (see also sysctls "vm.defer_swapspace_pageouts" and
+# "vm.disable_swapspace_pageouts")
+#
+#options NO_SWAPPING
+
+# Set the number of sf_bufs to allocate. sf_bufs are virtual buffers
+# for sendfile(2) that are used to map file VM pages, and normally
+# default to a quantity that is roughly 16*MAXUSERS+512. You would
+# typically want about 4 of these for each simultaneous file send.
+#
+options NSFBUFS=1024
+
+#
+# Enable extra debugging code for locks. This stores the filename and
+# line of whatever acquired the lock in the lock itself, and change a
+# number of function calls to pass around the relevant data. This is
+# not at all useful unless you are debugging lock code. Also note
+# that it is likely to break e.g. fstat(1) unless you recompile your
+# userland with -DDEBUG_LOCKS as well.
+#
+options DEBUG_LOCKS
+
+
+#####################################################################
+# USB support
+# UHCI controller
+device uhci
+# OHCI controller
+device ohci
+# EHCI controller
+device ehci
+# SL811 Controller
+device slhci
+# General USB code (mandatory for USB)
+device usb
+#
+# USB Double Bulk Pipe devices
+device udbp
+# USB Fm Radio
+device ufm
+# Generic USB device driver
+device ugen
+# Human Interface Device (anything with buttons and dials)
+device uhid
+# USB keyboard
+device ukbd
+# USB printer
+device ulpt
+# USB Iomega Zip 100 Drive (Requires scbus and da)
+device umass
+# USB support for Belkin F5U109 and Magic Control Technology serial adapters
+device umct
+# USB modem support
+device umodem
+# USB mouse
+device ums
+# Diamond Rio 500 MP3 player
+device urio
+# USB scanners
+device uscanner
+#
+# USB serial support
+device ucom
+# USB support for Technologies ARK3116 based serial adapters
+device uark
+# USB support for Belkin F5U103 and compatible serial adapters
+device ubsa
+# USB support for BWCT console serial adapters
+device ubser
+# USB support for serial adapters based on the FT8U100AX and FT8U232AM
+device uftdi
+# USB support for some Windows CE based serial communication.
+device uipaq
+# USB support for Prolific PL-2303 serial adapters
+device uplcom
+# USB Visor and Palm devices
+device uvisor
+# USB serial support for DDI pocket's PHS
+device uvscom
+#
+# ADMtek USB ethernet. Supports the LinkSys USB100TX,
+# the Billionton USB100, the Melco LU-ATX, the D-Link DSB-650TX
+# and the SMC 2202USB. Also works with the ADMtek AN986 Pegasus
+# eval board.
+device aue
+
+# ASIX Electronics AX88172 USB 2.0 ethernet driver. Used in the
+# LinkSys USB200M and various other adapters.
+
+device axe
+
+#
+# Devices which communicate using Ethernet over USB, particularly
+# Communication Device Class (CDC) Ethernet specification. Supports
+# Sharp Zaurus PDAs, some DOCSIS cable modems and so on.
+device cdce
+#
+# CATC USB-EL1201A USB ethernet. Supports the CATC Netmate
+# and Netmate II, and the Belkin F5U111.
+device cue
+#
+# Kawasaki LSI ethernet. Supports the LinkSys USB10T,
+# Entrega USB-NET-E45, Peracom Ethernet Adapter, the
+# 3Com 3c19250, the ADS Technologies USB-10BT, the ATen UC10T,
+# the Netgear EA101, the D-Link DSB-650, the SMC 2102USB
+# and 2104USB, and the Corega USB-T.
+device kue
+#
+# RealTek RTL8150 USB to fast ethernet. Supports the Melco LUA-KTX
+# and the GREEN HOUSE GH-USB100B.
+device rue
+#
+# Davicom DM9601E USB to fast ethernet. Supports the Corega FEther USB-TXC.
+device udav
+
+
+# debugging options for the USB subsystem
+#
+options USB_DEBUG
+
+# options for ukbd:
+options UKBD_DFLT_KEYMAP # specify the built-in keymap
+makeoptions UKBD_DFLT_KEYMAP=it.iso
+
+# options for uplcom:
+options UPLCOM_INTR_INTERVAL=100 # interrupt pipe interval
+ # in milliseconds
+
+# options for uvscom:
+options UVSCOM_DEFAULT_OPKTSIZE=8 # default output packet size
+options UVSCOM_INTR_INTERVAL=100 # interrupt pipe interval
+ # in milliseconds
+
+#####################################################################
+# FireWire support
+
+device firewire # FireWire bus code
+device sbp # SCSI over Firewire (Requires scbus and da)
+device sbp_targ # SBP-2 Target mode (Requires scbus and targ)
+device fwe # Ethernet over FireWire (non-standard!)
+device fwip # IP over FireWire (RFC2734 and RFC3146)
+
+#####################################################################
+# dcons support (Dumb Console Device)
+
+device dcons # dumb console driver
+device dcons_crom # FireWire attachment
+options DCONS_BUF_SIZE=16384 # buffer size
+options DCONS_POLL_HZ=100 # polling rate
+options DCONS_FORCE_CONSOLE=0 # force to be the primary console
+options DCONS_FORCE_GDB=1 # force to be the gdb device
+
+#####################################################################
+# crypto subsystem
+#
+# This is a port of the OpenBSD crypto framework. Include this when
+# configuring FAST_IPSEC and when you have a h/w crypto device to accelerate
+# user applications that link to OpenSSL.
+#
+# Drivers are ports from OpenBSD with some simple enhancements that have
+# been fed back to OpenBSD.
+
+device crypto # core crypto support
+device cryptodev # /dev/crypto for access to h/w
+
+device rndtest # FIPS 140-2 entropy tester
+
+device hifn # Hifn 7951, 7781, etc.
+options HIFN_DEBUG # enable debugging support: hw.hifn.debug
+options HIFN_RNDTEST # enable rndtest support
+
+device ubsec # Broadcom 5501, 5601, 58xx
+options UBSEC_DEBUG # enable debugging support: hw.ubsec.debug
+options UBSEC_RNDTEST # enable rndtest support
+
+#####################################################################
+
+
+#
+# Embedded system options:
+#
+# An embedded system might want to run something other than init.
+options INIT_PATH=/sbin/init:/stand/sysinstall
+
+# Debug options
+options BUS_DEBUG # enable newbus debugging
+options DEBUG_VFS_LOCKS # enable VFS lock debugging
+options SOCKBUF_DEBUG # enable sockbuf last record/mb tail checking
+
+#
+# Verbose SYSINIT
+#
+# Make the SYSINIT process performed by mi_startup() verbose. This is very
+# useful when porting to a new architecture. If DDB is also enabled, this
+# will print function names instead of addresses.
+options VERBOSE_SYSINIT
+
+#####################################################################
+# SYSV IPC KERNEL PARAMETERS
+#
+# Maximum number of entries in a semaphore map.
+options SEMMAP=31
+
+# Maximum number of System V semaphores that can be used on the system at
+# one time.
+options SEMMNI=11
+
+# Total number of semaphores system wide
+options SEMMNS=61
+
+# Total number of undo structures in system
+options SEMMNU=31
+
+# Maximum number of System V semaphores that can be used by a single process
+# at one time.
+options SEMMSL=61
+
+# Maximum number of operations that can be outstanding on a single System V
+# semaphore at one time.
+options SEMOPM=101
+
+# Maximum number of undo operations that can be outstanding on a single
+# System V semaphore at one time.
+options SEMUME=11
+
+# Maximum number of shared memory pages system wide.
+options SHMALL=1025
+
+# Maximum size, in bytes, of a single System V shared memory region.
+options SHMMAX=(SHMMAXPGS*PAGE_SIZE+1)
+options SHMMAXPGS=1025
+
+# Minimum size, in bytes, of a single System V shared memory region.
+options SHMMIN=2
+
+# Maximum number of shared memory regions that can be used on the system
+# at one time.
+options SHMMNI=33
+
+# Maximum number of System V shared memory regions that can be attached to
+# a single process at one time.
+options SHMSEG=9
+
+# Set the amount of time (in seconds) the system will wait before
+# rebooting automatically when a kernel panic occurs. If set to (-1),
+# the system will wait indefinitely until a key is pressed on the
+# console.
+options PANIC_REBOOT_WAIT_TIME=16
+
+# Attempt to bypass the buffer cache and put data directly into the
+# userland buffer for read operation when O_DIRECT flag is set on the
+# file. Both offset and length of the read operation must be
+# multiples of the physical media sector size.
+#
+options DIRECTIO
+
+# Specify a lower limit for the number of swap I/O buffers. They are
+# (among other things) used when bypassing the buffer cache due to
+# DIRECTIO kernel option enabled and O_DIRECT flag set on file.
+#
+options NSWBUF_MIN=120
+
+#####################################################################
+
+# More undocumented options for linting.
+# Note that documenting these are not considered an affront.
+
+options CAM_DEBUG_DELAY
+
+# VFS cluster debugging.
+options CLUSTERDEBUG
+
+options DEBUG
+
+# Kernel filelock debugging.
+options LOCKF_DEBUG
+
+# System V compatible message queues
+# Please note that the values provided here are used to test kernel
+# building. The defaults in the sources provide almost the same numbers.
+# MSGSSZ must be a power of 2 between 8 and 1024.
+options MSGMNB=2049 # Max number of chars in queue
+options MSGMNI=41 # Max number of message queue identifiers
+options MSGSEG=2049 # Max number of message segments
+options MSGSSZ=16 # Size of a message segment
+options MSGTQL=41 # Max number of messages in system
+
+options NBUF=512 # Number of buffer headers
+
+options SCSI_NCR_DEBUG
+options SCSI_NCR_MAX_SYNC=10000
+options SCSI_NCR_MAX_WIDE=1
+options SCSI_NCR_MYADDR=7
+
+options SC_DEBUG_LEVEL=5 # Syscons debug level
+options SC_RENDER_DEBUG # syscons rendering debugging
+
+options SHOW_BUSYBUFS # List buffers that prevent root unmount
+options SLIP_IFF_OPTS
+options VFS_BIO_DEBUG # VFS buffer I/O debugging
+
+options KSTACK_MAX_PAGES=32 # Maximum pages to give the kernel stack
+
+# Adaptec Array Controller driver options
+options AAC_DEBUG # Debugging levels:
+ # 0 - quiet, only emit warnings
+ # 1 - noisy, emit major function
+ # points and things done
+ # 2 - extremely noisy, emit trace
+ # items in loops, etc.
+
+# Yet more undocumented options for linting.
+# BKTR_ALLOC_PAGES has no effect except to cause warnings, and
+# BROOKTREE_ALLOC_PAGES hasn't actually been superseded by it, since the
+# driver still mostly spells this option BROOKTREE_ALLOC_PAGES.
+##options BKTR_ALLOC_PAGES=(217*4+1)
+options BROOKTREE_ALLOC_PAGES=(217*4+1)
+options MAXFILES=999
OpenPOWER on IntegriCloud