The Design and Implementation of the FreeBSD Operating System, Second Edition
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    1 # $FreeBSD: releng/8.2/sys/conf/NOTES 214755 2010-11-03 21:21:12Z kib $
    2 #
    3 # NOTES -- Lines that can be cut/pasted into kernel and hints configs.
    4 #
    5 # Lines that begin with 'device', 'options', 'machine', 'ident', 'maxusers',
    6 # 'makeoptions', 'hints', etc. go into the kernel configuration that you
    7 # run config(8) with.
    8 #
    9 # Lines that begin with 'hint.' are NOT for config(8), they go into your
   10 # hints file.  See /boot/device.hints and/or the 'hints' config(8) directive.
   11 #
   12 # Please use ``make LINT'' to create an old-style LINT file if you want to
   13 # do kernel test-builds.
   14 #
   15 # This file contains machine independent kernel configuration notes.  For
   16 # machine dependent notes, look in /sys/<arch>/conf/NOTES.
   17 #
   18 
   19 #
   20 # NOTES conventions and style guide:
   21 #
   22 # Large block comments should begin and end with a line containing only a
   23 # comment character.
   24 #
   25 # To describe a particular object, a block comment (if it exists) should
   26 # come first.  Next should come device, options, and hints lines in that
   27 # order.  All device and option lines must be described by a comment that
   28 # doesn't just expand the device or option name.  Use only a concise
   29 # comment on the same line if possible.  Very detailed descriptions of
   30 # devices and subsystems belong in man pages.
   31 #
   32 # A space followed by a tab separates 'options' from an option name.  Two
   33 # spaces followed by a tab separate 'device' from a device name.  Comments
   34 # after an option or device should use one space after the comment character.
   35 # To comment out a negative option that disables code and thus should not be
   36 # enabled for LINT builds, precede 'options' with "#!".
   37 #
   38 
   39 #
   40 # This is the ``identification'' of the kernel.  Usually this should
   41 # be the same as the name of your kernel.
   42 #
   43 ident           LINT
   44 
   45 #
   46 # The `maxusers' parameter controls the static sizing of a number of
   47 # internal system tables by a formula defined in subr_param.c.
   48 # Omitting this parameter or setting it to 0 will cause the system to
   49 # auto-size based on physical memory.
   50 #
   51 maxusers        10
   52 
   53 #
   54 # The `makeoptions' parameter allows variables to be passed to the
   55 # generated Makefile in the build area.
   56 #
   57 # CONF_CFLAGS gives some extra compiler flags that are added to ${CFLAGS}
   58 # after most other flags.  Here we use it to inhibit use of non-optimal
   59 # gcc built-in functions (e.g., memcmp).
   60 #
   61 # DEBUG happens to be magic.
   62 # The following is equivalent to 'config -g KERNELNAME' and creates
   63 # 'kernel.debug' compiled with -g debugging as well as a normal
   64 # 'kernel'.  Use 'make install.debug' to install the debug kernel
   65 # but that isn't normally necessary as the debug symbols are not loaded
   66 # by the kernel and are not useful there anyway.
   67 #
   68 # KERNEL can be overridden so that you can change the default name of your
   69 # kernel.
   70 #
   71 # MODULES_OVERRIDE can be used to limit modules built to a specific list.
   72 #
   73 makeoptions     CONF_CFLAGS=-fno-builtin  #Don't allow use of memcmp, etc.
   74 #makeoptions    DEBUG=-g                #Build kernel with gdb(1) debug symbols
   75 #makeoptions    KERNEL=foo              #Build kernel "foo" and install "/foo"
   76 # Only build ext2fs module plus those parts of the sound system I need.
   77 #makeoptions    MODULES_OVERRIDE="ext2fs sound/sound sound/driver/maestro3"
   78 makeoptions     DESTDIR=/tmp
   79 
   80 #
   81 # FreeBSD processes are subject to certain limits to their consumption
   82 # of system resources.  See getrlimit(2) for more details.  Each
   83 # resource limit has two values, a "soft" limit and a "hard" limit.
   84 # The soft limits can be modified during normal system operation, but
   85 # the hard limits are set at boot time.  Their default values are
   86 # in sys/<arch>/include/vmparam.h.  There are two ways to change them:
   87 # 
   88 # 1.  Set the values at kernel build time.  The options below are one
   89 #     way to allow that limit to grow to 1GB.  They can be increased
   90 #     further by changing the parameters:
   91 #       
   92 # 2.  In /boot/loader.conf, set the tunables kern.maxswzone,
   93 #     kern.maxbcache, kern.maxtsiz, kern.dfldsiz, kern.maxdsiz,
   94 #     kern.dflssiz, kern.maxssiz and kern.sgrowsiz.
   95 #
   96 # The options in /boot/loader.conf override anything in the kernel
   97 # configuration file.  See the function init_param1 in
   98 # sys/kern/subr_param.c for more details.
   99 #
  100 
  101 options         MAXDSIZ=(1024UL*1024*1024)
  102 options         MAXSSIZ=(128UL*1024*1024)
  103 options         DFLDSIZ=(1024UL*1024*1024)
  104 
  105 #
  106 # BLKDEV_IOSIZE sets the default block size used in user block
  107 # device I/O.  Note that this value will be overridden by the label
  108 # when specifying a block device from a label with a non-0
  109 # partition blocksize.  The default is PAGE_SIZE.
  110 #
  111 options         BLKDEV_IOSIZE=8192
  112 
  113 #
  114 # MAXPHYS and DFLTPHYS
  115 #
  116 # These are the max and default 'raw' I/O block device access sizes.
  117 # Reads and writes will be split into DFLTPHYS chunks. Some applications
  118 # have better performance with larger raw I/O access sizes. Typically
  119 # MAXPHYS should be twice the size of DFLTPHYS. Note that certain VM
  120 # parameters are derived from these values and making them too large
  121 # can make an an unbootable kernel.
  122 #
  123 # The defaults are 64K and 128K respectively.
  124 options         DFLTPHYS=(64*1024)
  125 options         MAXPHYS=(128*1024)
  126 
  127 
  128 # This allows you to actually store this configuration file into
  129 # the kernel binary itself. See config(8) for more details.
  130 #
  131 options         INCLUDE_CONFIG_FILE     # Include this file in kernel
  132 
  133 options         GEOM_AES                # Don't use, use GEOM_BDE
  134 options         GEOM_BDE                # Disk encryption.
  135 options         GEOM_BSD                # BSD disklabels
  136 options         GEOM_CACHE              # Disk cache.
  137 options         GEOM_CONCAT             # Disk concatenation.
  138 options         GEOM_ELI                # Disk encryption.
  139 options         GEOM_FOX                # Redundant path mitigation
  140 options         GEOM_GATE               # Userland services.
  141 options         GEOM_JOURNAL            # Journaling.
  142 options         GEOM_LABEL              # Providers labelization.
  143 options         GEOM_LINUX_LVM          # Linux LVM2 volumes
  144 options         GEOM_MBR                # DOS/MBR partitioning
  145 options         GEOM_MIRROR             # Disk mirroring.
  146 options         GEOM_MULTIPATH          # Disk multipath
  147 options         GEOM_NOP                # Test class.
  148 options         GEOM_PART_APM           # Apple partitioning
  149 options         GEOM_PART_BSD           # BSD disklabel
  150 options         GEOM_PART_EBR           # Extended Boot Records
  151 options         GEOM_PART_EBR_COMPAT    # Backward compatible partition names
  152 options         GEOM_PART_GPT           # GPT partitioning
  153 options         GEOM_PART_MBR           # MBR partitioning
  154 options         GEOM_PART_PC98          # PC-9800 disk partitioning
  155 options         GEOM_PART_VTOC8         # SMI VTOC8 disk label
  156 options         GEOM_PC98               # NEC PC9800 partitioning
  157 options         GEOM_RAID3              # RAID3 functionality.
  158 options         GEOM_SHSEC              # Shared secret.
  159 options         GEOM_STRIPE             # Disk striping.
  160 options         GEOM_SUNLABEL           # Sun/Solaris partitioning
  161 options         GEOM_UZIP               # Read-only compressed disks
  162 options         GEOM_VIRSTOR            # Virtual storage.
  163 options         GEOM_VOL                # Volume names from UFS superblock
  164 options         GEOM_ZERO               # Performance testing helper.
  165 
  166 #
  167 # The root device and filesystem type can be compiled in;
  168 # this provides a fallback option if the root device cannot
  169 # be correctly guessed by the bootstrap code, or an override if
  170 # the RB_DFLTROOT flag (-r) is specified when booting the kernel.
  171 #
  172 options         ROOTDEVNAME=\"ufs:da0s2e\"
  173 
  174 
  175 #####################################################################
  176 # Scheduler options:
  177 #
  178 # Specifying one of SCHED_4BSD or SCHED_ULE is mandatory.  These options
  179 # select which scheduler is compiled in.
  180 #
  181 # SCHED_4BSD is the historical, proven, BSD scheduler.  It has a global run
  182 # queue and no CPU affinity which makes it suboptimal for SMP.  It has very
  183 # good interactivity and priority selection.
  184 #
  185 # SCHED_ULE provides significant performance advantages over 4BSD on many
  186 # workloads on SMP machines.  It supports cpu-affinity, per-cpu runqueues
  187 # and scheduler locks.  It also has a stronger notion of interactivity 
  188 # which leads to better responsiveness even on uniprocessor machines.  This
  189 # will eventually become the default scheduler.
  190 #
  191 # SCHED_STATS is a debugging option which keeps some stats in the sysctl
  192 # tree at 'kern.sched.stats' and is useful for debugging scheduling decisions.
  193 #
  194 options         SCHED_4BSD
  195 options         SCHED_STATS
  196 #options        SCHED_ULE
  197 
  198 #####################################################################
  199 # SMP OPTIONS:
  200 #
  201 # SMP enables building of a Symmetric MultiProcessor Kernel.
  202 
  203 # Mandatory:
  204 options         SMP                     # Symmetric MultiProcessor Kernel
  205 
  206 # ADAPTIVE_MUTEXES changes the behavior of blocking mutexes to spin
  207 # if the thread that currently owns the mutex is executing on another
  208 # CPU.  This behaviour is enabled by default, so this option can be used
  209 # to disable it.
  210 options         NO_ADAPTIVE_MUTEXES
  211 
  212 # ADAPTIVE_RWLOCKS changes the behavior of reader/writer locks to spin
  213 # if the thread that currently owns the rwlock is executing on another
  214 # CPU.  This behaviour is enabled by default, so this option can be used
  215 # to disable it.
  216 options         NO_ADAPTIVE_RWLOCKS
  217 
  218 # ADAPTIVE_SX changes the behavior of sx locks to spin if the thread that
  219 # currently owns the sx lock is executing on another CPU.
  220 # This behaviour is enabled by default, so this option can be used to
  221 # disable it.
  222 options         NO_ADAPTIVE_SX
  223 
  224 # MUTEX_NOINLINE forces mutex operations to call functions to perform each
  225 # operation rather than inlining the simple cases.  This can be used to
  226 # shrink the size of the kernel text segment.  Note that this behavior is
  227 # already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
  228 # and WITNESS options.
  229 options         MUTEX_NOINLINE
  230 
  231 # RWLOCK_NOINLINE forces rwlock operations to call functions to perform each
  232 # operation rather than inlining the simple cases.  This can be used to
  233 # shrink the size of the kernel text segment.  Note that this behavior is
  234 # already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
  235 # and WITNESS options.
  236 options         RWLOCK_NOINLINE
  237 
  238 # SX_NOINLINE forces sx lock operations to call functions to perform each
  239 # operation rather than inlining the simple cases.  This can be used to
  240 # shrink the size of the kernel text segment.  Note that this behavior is
  241 # already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
  242 # and WITNESS options.
  243 options         SX_NOINLINE
  244 
  245 # SMP Debugging Options:
  246 #
  247 # PREEMPTION allows the threads that are in the kernel to be preempted by
  248 #         higher priority [interrupt] threads.  It helps with interactivity
  249 #         and allows interrupt threads to run sooner rather than waiting.
  250 #         WARNING! Only tested on amd64 and i386.
  251 # FULL_PREEMPTION instructs the kernel to preempt non-realtime kernel
  252 #         threads.  Its sole use is to expose race conditions and other
  253 #         bugs during development.  Enabling this option will reduce
  254 #         performance and increase the frequency of kernel panics by
  255 #         design.  If you aren't sure that you need it then you don't.
  256 #         Relies on the PREEMPTION option.  DON'T TURN THIS ON.
  257 # MUTEX_DEBUG enables various extra assertions in the mutex code.
  258 # SLEEPQUEUE_PROFILING enables rudimentary profiling of the hash table
  259 #         used to hold active sleep queues as well as sleep wait message
  260 #         frequency.
  261 # TURNSTILE_PROFILING enables rudimentary profiling of the hash table
  262 #         used to hold active lock queues.
  263 # WITNESS enables the witness code which detects deadlocks and cycles
  264 #         during locking operations.
  265 # WITNESS_KDB causes the witness code to drop into the kernel debugger if
  266 #         a lock hierarchy violation occurs or if locks are held when going to
  267 #         sleep.
  268 # WITNESS_SKIPSPIN disables the witness checks on spin mutexes.
  269 options         PREEMPTION
  270 options         FULL_PREEMPTION
  271 options         MUTEX_DEBUG
  272 options         WITNESS
  273 options         WITNESS_KDB
  274 options         WITNESS_SKIPSPIN
  275 
  276 # LOCK_PROFILING - Profiling locks.  See LOCK_PROFILING(9) for details.
  277 options         LOCK_PROFILING
  278 # Set the number of buffers and the hash size.  The hash size MUST be larger
  279 # than the number of buffers.  Hash size should be prime.
  280 options         MPROF_BUFFERS="1536"
  281 options         MPROF_HASH_SIZE="1543"
  282 
  283 # Profiling for internal hash tables.
  284 options         SLEEPQUEUE_PROFILING
  285 options         TURNSTILE_PROFILING
  286 
  287 
  288 #####################################################################
  289 # COMPATIBILITY OPTIONS
  290 
  291 #
  292 # Implement system calls compatible with 4.3BSD and older versions of
  293 # FreeBSD.  You probably do NOT want to remove this as much current code
  294 # still relies on the 4.3 emulation.  Note that some architectures that
  295 # are supported by FreeBSD do not include support for certain important
  296 # aspects of this compatibility option, namely those related to the
  297 # signal delivery mechanism.
  298 #
  299 options         COMPAT_43
  300 
  301 # Old tty interface.
  302 options         COMPAT_43TTY
  303 
  304 # Note that as a general rule, COMPAT_FREEBSD<n> depends on
  305 # COMPAT_FREEBSD<n+1>, COMPAT_FREEBSD<n+2>, etc.
  306 
  307 # Enable FreeBSD4 compatibility syscalls
  308 options         COMPAT_FREEBSD4
  309 
  310 # Enable FreeBSD5 compatibility syscalls
  311 options         COMPAT_FREEBSD5
  312 
  313 # Enable FreeBSD6 compatibility syscalls
  314 options         COMPAT_FREEBSD6
  315 
  316 # Enable FreeBSD7 compatibility syscalls
  317 options         COMPAT_FREEBSD7
  318 
  319 #
  320 # These three options provide support for System V Interface
  321 # Definition-style interprocess communication, in the form of shared
  322 # memory, semaphores, and message queues, respectively.
  323 #
  324 options         SYSVSHM
  325 options         SYSVSEM
  326 options         SYSVMSG
  327 
  328 
  329 #####################################################################
  330 # DEBUGGING OPTIONS
  331 
  332 #
  333 # Compile with kernel debugger related code.
  334 #
  335 options         KDB
  336 
  337 #
  338 # Print a stack trace of the current thread on the console for a panic.
  339 #
  340 options         KDB_TRACE
  341 
  342 #
  343 # Don't enter the debugger for a panic. Intended for unattended operation
  344 # where you may want to enter the debugger from the console, but still want
  345 # the machine to recover from a panic.
  346 #
  347 options         KDB_UNATTENDED
  348 
  349 #
  350 # Enable the ddb debugger backend.
  351 #
  352 options         DDB
  353 
  354 #
  355 # Print the numerical value of symbols in addition to the symbolic
  356 # representation.
  357 #
  358 options         DDB_NUMSYM
  359 
  360 #
  361 # Enable the remote gdb debugger backend.
  362 #
  363 options         GDB
  364 
  365 #
  366 # SYSCTL_DEBUG enables a 'sysctl' debug tree that can be used to dump the
  367 # contents of the registered sysctl nodes on the console.  It is disabled by
  368 # default because it generates excessively verbose console output that can
  369 # interfere with serial console operation.
  370 #
  371 options         SYSCTL_DEBUG
  372 
  373 #
  374 # NO_SYSCTL_DESCR omits the sysctl node descriptions to save space in the
  375 # resulting kernel.
  376 options         NO_SYSCTL_DESCR
  377 
  378 #
  379 # DEBUG_MEMGUARD builds and enables memguard(9), a replacement allocator
  380 # for the kernel used to detect modify-after-free scenarios.  See the
  381 # memguard(9) man page for more information on usage.
  382 #
  383 options         DEBUG_MEMGUARD
  384 
  385 #
  386 # DEBUG_REDZONE enables buffer underflows and buffer overflows detection for
  387 # malloc(9).
  388 #
  389 options         DEBUG_REDZONE
  390 
  391 #
  392 # KTRACE enables the system-call tracing facility ktrace(2).  To be more
  393 # SMP-friendly, KTRACE uses a worker thread to process most trace events
  394 # asynchronously to the thread generating the event.  This requires a
  395 # pre-allocated store of objects representing trace events.  The
  396 # KTRACE_REQUEST_POOL option specifies the initial size of this store.
  397 # The size of the pool can be adjusted both at boottime and runtime via
  398 # the kern.ktrace_request_pool tunable and sysctl.
  399 #
  400 options         KTRACE                  #kernel tracing
  401 options         KTRACE_REQUEST_POOL=101
  402 
  403 #
  404 # KTR is a kernel tracing mechanism imported from BSD/OS.  Currently
  405 # it has no userland interface aside from a few sysctl's.  It is
  406 # enabled with the KTR option.  KTR_ENTRIES defines the number of
  407 # entries in the circular trace buffer; it must be a power of two.
  408 # KTR_COMPILE defines the mask of events to compile into the kernel as
  409 # defined by the KTR_* constants in <sys/ktr.h>.  KTR_MASK defines the
  410 # initial value of the ktr_mask variable which determines at runtime
  411 # what events to trace.  KTR_CPUMASK determines which CPU's log
  412 # events, with bit X corresponding to CPU X.  KTR_VERBOSE enables
  413 # dumping of KTR events to the console by default.  This functionality
  414 # can be toggled via the debug.ktr_verbose sysctl and defaults to off
  415 # if KTR_VERBOSE is not defined.
  416 #
  417 options         KTR
  418 options         KTR_ENTRIES=1024
  419 options         KTR_COMPILE=(KTR_INTR|KTR_PROC)
  420 options         KTR_MASK=KTR_INTR
  421 options         KTR_CPUMASK=0x3
  422 options         KTR_VERBOSE
  423 
  424 #
  425 # ALQ(9) is a facility for the asynchronous queuing of records from the kernel
  426 # to a vnode, and is employed by services such as KTR(4) to produce trace
  427 # files based on a kernel event stream.  Records are written asynchronously
  428 # in a worker thread.
  429 #
  430 options         ALQ
  431 options         KTR_ALQ
  432 
  433 #
  434 # The INVARIANTS option is used in a number of source files to enable
  435 # extra sanity checking of internal structures.  This support is not
  436 # enabled by default because of the extra time it would take to check
  437 # for these conditions, which can only occur as a result of
  438 # programming errors.
  439 #
  440 options         INVARIANTS
  441 
  442 #
  443 # The INVARIANT_SUPPORT option makes us compile in support for
  444 # verifying some of the internal structures.  It is a prerequisite for
  445 # 'INVARIANTS', as enabling 'INVARIANTS' will make these functions be
  446 # called.  The intent is that you can set 'INVARIANTS' for single
  447 # source files (by changing the source file or specifying it on the
  448 # command line) if you have 'INVARIANT_SUPPORT' enabled.  Also, if you
  449 # wish to build a kernel module with 'INVARIANTS', then adding
  450 # 'INVARIANT_SUPPORT' to your kernel will provide all the necessary
  451 # infrastructure without the added overhead.
  452 #
  453 options         INVARIANT_SUPPORT
  454 
  455 #
  456 # The DIAGNOSTIC option is used to enable extra debugging information
  457 # from some parts of the kernel.  As this makes everything more noisy,
  458 # it is disabled by default.
  459 #
  460 options         DIAGNOSTIC
  461 
  462 #
  463 # REGRESSION causes optional kernel interfaces necessary only for regression
  464 # testing to be enabled.  These interfaces may constitute security risks
  465 # when enabled, as they permit processes to easily modify aspects of the
  466 # run-time environment to reproduce unlikely or unusual (possibly normally
  467 # impossible) scenarios.
  468 #
  469 options         REGRESSION
  470 
  471 #
  472 # RESTARTABLE_PANICS allows one to continue from a panic as if it were
  473 # a call to the debugger to continue from a panic as instead.  It is only
  474 # useful if a kernel debugger is present.  To restart from a panic, reset
  475 # the panicstr variable to NULL and continue execution.  This option is
  476 # for development use only and should NOT be used in production systems
  477 # to "workaround" a panic.
  478 #
  479 #options        RESTARTABLE_PANICS
  480 
  481 #
  482 # This option let some drivers co-exist that can't co-exist in a running
  483 # system.  This is used to be able to compile all kernel code in one go for
  484 # quality assurance purposes (like this file, which the option takes it name
  485 # from.)
  486 #
  487 options         COMPILING_LINT
  488 
  489 #
  490 # STACK enables the stack(9) facility, allowing the capture of kernel stack
  491 # for the purpose of procinfo(1), etc.  stack(9) will also be compiled in
  492 # automatically if DDB(4) is compiled into the kernel.
  493 #
  494 options         STACK
  495 
  496 
  497 #####################################################################
  498 # PERFORMANCE MONITORING OPTIONS
  499 
  500 #
  501 # The hwpmc driver that allows the use of in-CPU performance monitoring
  502 # counters for performance monitoring.  The base kernel needs to configured
  503 # with the 'options' line, while the hwpmc device can be either compiled
  504 # in or loaded as a loadable kernel module.
  505 #
  506 # Additional configuration options may be required on specific architectures,
  507 # please see hwpmc(4).
  508 
  509 device          hwpmc                   # Driver (also a loadable module)
  510 options         HWPMC_HOOKS             # Other necessary kernel hooks
  511 
  512 
  513 #####################################################################
  514 # NETWORKING OPTIONS
  515 
  516 #
  517 # Protocol families
  518 #
  519 options         INET                    #Internet communications protocols
  520 options         INET6                   #IPv6 communications protocols
  521 
  522 options         ROUTETABLES=2           # max 16. 1 is back compatible.
  523 
  524 # In order to enable IPSEC you MUST also add device crypto to 
  525 # your kernel configuration
  526 options         IPSEC                   #IP security (requires device crypto)
  527 #options        IPSEC_DEBUG             #debug for IP security
  528 #
  529 # #DEPRECATED#
  530 # Set IPSEC_FILTERTUNNEL to change the default of the sysctl to force packets
  531 # coming through a tunnel to be processed by any configured packet filtering
  532 # twice. The default is that packets coming out of a tunnel are _not_ processed;
  533 # they are assumed trusted.
  534 #
  535 # IPSEC history is preserved for such packets, and can be filtered
  536 # using ipfw(8)'s 'ipsec' keyword, when this option is enabled.
  537 #
  538 #options        IPSEC_FILTERTUNNEL      #filter ipsec packets from a tunnel
  539 #
  540 # Set IPSEC_NAT_T to enable NAT-Traversal support.  This enables
  541 # optional UDP encapsulation of ESP packets.
  542 #
  543 options         IPSEC_NAT_T             #NAT-T support, UDP encap of ESP
  544 
  545 options         IPX                     #IPX/SPX communications protocols
  546 
  547 options         NCP                     #NetWare Core protocol
  548 
  549 options         NETATALK                #Appletalk communications protocols
  550 options         NETATALKDEBUG           #Appletalk debugging
  551 
  552 #
  553 # SMB/CIFS requester
  554 # NETSMB enables support for SMB protocol, it requires LIBMCHAIN and LIBICONV
  555 # options.
  556 options         NETSMB                  #SMB/CIFS requester
  557 
  558 # mchain library. It can be either loaded as KLD or compiled into kernel
  559 options         LIBMCHAIN
  560 
  561 # libalias library, performing NAT
  562 options         LIBALIAS
  563 
  564 # flowtable cache
  565 options         FLOWTABLE
  566 
  567 #
  568 # SCTP is a NEW transport protocol defined by
  569 # RFC2960 updated by RFC3309 and RFC3758.. and
  570 # soon to have a new base RFC and many many more
  571 # extensions. This release supports all the extensions
  572 # including many drafts (most about to become RFC's).
  573 # It is the premeier SCTP implementation in the NET
  574 # and is quite well tested.
  575 #
  576 # Note YOU MUST have both INET and INET6 defined.
  577 # you don't have to enable V6, but SCTP is 
  578 # dual stacked and so far we have not teased apart
  579 # the V6 and V4.. since an association can span
  580 # both a V6 and V4 address at the SAME time :-)
  581 #
  582 options         SCTP
  583 # There are bunches of options:
  584 # this one turns on all sorts of
  585 # nastly printing that you can
  586 # do. Its all controled by a
  587 # bit mask (settable by socket opt and
  588 # by sysctl). Including will not cause
  589 # logging until you set the bits.. but it
  590 # can be quite verbose.. so without this
  591 # option we don't do any of the tests for
  592 # bits and prints.. which makes the code run
  593 # faster.. if you are not debugging don't use.
  594 options         SCTP_DEBUG
  595 #
  596 # This option turns off the CRC32c checksum. Basically
  597 # You will not be able to talk to anyone else that
  598 # has not done this. Its more for expermentation to
  599 # see how much CPU the CRC32c really takes. Most new
  600 # cards for TCP support checksum offload.. so this 
  601 # option gives you a "view" into what SCTP would be
  602 # like with such an offload (which only exists in
  603 # high in iSCSI boards so far). With the new
  604 # splitting 8's algorithm its not as bad as it used
  605 # to be.. but it does speed things up try only
  606 # for in a captured lab environment :-)
  607 options         SCTP_WITH_NO_CSUM
  608 #
  609 
  610 #
  611 # All that options after that turn on specific types of
  612 # logging. You can monitor CWND growth, flight size
  613 # and all sorts of things. Go look at the code and
  614 # see. I have used this to produce interesting 
  615 # charts and graphs as well :->
  616 # 
  617 # I have not yet commited the tools to get and print
  618 # the logs, I will do that eventually .. before then
  619 # if you want them send me an email rrs@freebsd.org
  620 # You basically must have KTR enabled for these
  621 # and you then set the sysctl to turn on/off various
  622 # logging bits. Use ktrdump to pull the log and run
  623 # it through a dispaly program.. and graphs and other
  624 # things too.
  625 #
  626 options         SCTP_LOCK_LOGGING
  627 options         SCTP_MBUF_LOGGING
  628 options         SCTP_MBCNT_LOGGING
  629 options         SCTP_PACKET_LOGGING
  630 options         SCTP_LTRACE_CHUNKS
  631 options         SCTP_LTRACE_ERRORS
  632 
  633 
  634 # altq(9). Enable the base part of the hooks with the ALTQ option.
  635 # Individual disciplines must be built into the base system and can not be
  636 # loaded as modules at this point. ALTQ requires a stable TSC so if yours is
  637 # broken or changes with CPU throttling then you must also have the ALTQ_NOPCC
  638 # option.
  639 options         ALTQ
  640 options         ALTQ_CBQ        # Class Based Queueing
  641 options         ALTQ_RED        # Random Early Detection
  642 options         ALTQ_RIO        # RED In/Out
  643 options         ALTQ_HFSC       # Hierarchical Packet Scheduler
  644 options         ALTQ_CDNR       # Traffic conditioner
  645 options         ALTQ_PRIQ       # Priority Queueing
  646 options         ALTQ_NOPCC      # Required if the TSC is unusable
  647 options         ALTQ_DEBUG
  648 
  649 # netgraph(4). Enable the base netgraph code with the NETGRAPH option.
  650 # Individual node types can be enabled with the corresponding option
  651 # listed below; however, this is not strictly necessary as netgraph
  652 # will automatically load the corresponding KLD module if the node type
  653 # is not already compiled into the kernel. Each type below has a
  654 # corresponding man page, e.g., ng_async(8).
  655 options         NETGRAPH                # netgraph(4) system
  656 options         NETGRAPH_DEBUG          # enable extra debugging, this
  657                                         # affects netgraph(4) and nodes
  658 # Node types
  659 options         NETGRAPH_ASYNC
  660 options         NETGRAPH_ATMLLC
  661 options         NETGRAPH_ATM_ATMPIF
  662 options         NETGRAPH_BLUETOOTH              # ng_bluetooth(4)
  663 options         NETGRAPH_BLUETOOTH_BT3C         # ng_bt3c(4)
  664 options         NETGRAPH_BLUETOOTH_HCI          # ng_hci(4)
  665 options         NETGRAPH_BLUETOOTH_L2CAP        # ng_l2cap(4)
  666 options         NETGRAPH_BLUETOOTH_SOCKET       # ng_btsocket(4)
  667 options         NETGRAPH_BLUETOOTH_UBT          # ng_ubt(4)
  668 options         NETGRAPH_BLUETOOTH_UBTBCMFW     # ubtbcmfw(4)
  669 options         NETGRAPH_BPF
  670 options         NETGRAPH_BRIDGE
  671 options         NETGRAPH_CAR
  672 options         NETGRAPH_CISCO
  673 options         NETGRAPH_DEFLATE
  674 options         NETGRAPH_DEVICE
  675 options         NETGRAPH_ECHO
  676 options         NETGRAPH_EIFACE
  677 options         NETGRAPH_ETHER
  678 options         NETGRAPH_FEC
  679 options         NETGRAPH_FRAME_RELAY
  680 options         NETGRAPH_GIF
  681 options         NETGRAPH_GIF_DEMUX
  682 options         NETGRAPH_HOLE
  683 options         NETGRAPH_IFACE
  684 options         NETGRAPH_IP_INPUT
  685 options         NETGRAPH_IPFW
  686 options         NETGRAPH_KSOCKET
  687 options         NETGRAPH_L2TP
  688 options         NETGRAPH_LMI
  689 # MPPC compression requires proprietary files (not included)
  690 #options        NETGRAPH_MPPC_COMPRESSION
  691 options         NETGRAPH_MPPC_ENCRYPTION
  692 options         NETGRAPH_NETFLOW
  693 options         NETGRAPH_NAT
  694 options         NETGRAPH_ONE2MANY
  695 options         NETGRAPH_PATCH
  696 options         NETGRAPH_PIPE
  697 options         NETGRAPH_PPP
  698 options         NETGRAPH_PPPOE
  699 options         NETGRAPH_PPTPGRE
  700 options         NETGRAPH_PRED1
  701 options         NETGRAPH_RFC1490
  702 options         NETGRAPH_SOCKET
  703 options         NETGRAPH_SPLIT
  704 options         NETGRAPH_SPPP
  705 options         NETGRAPH_TAG
  706 options         NETGRAPH_TCPMSS
  707 options         NETGRAPH_TEE
  708 options         NETGRAPH_UI
  709 options         NETGRAPH_VJC
  710 
  711 # NgATM - Netgraph ATM
  712 options         NGATM_ATM
  713 options         NGATM_ATMBASE
  714 options         NGATM_SSCOP
  715 options         NGATM_SSCFU
  716 options         NGATM_UNI
  717 options         NGATM_CCATM
  718 
  719 device          mn      # Munich32x/Falc54 Nx64kbit/sec cards.
  720 
  721 #
  722 # Network interfaces:
  723 #  The `loop' device is MANDATORY when networking is enabled.
  724 device          loop
  725 
  726 #  The `ether' device provides generic code to handle
  727 #  Ethernets; it is MANDATORY when an Ethernet device driver is
  728 #  configured or token-ring is enabled.
  729 device          ether
  730 
  731 #  The `vlan' device implements the VLAN tagging of Ethernet frames
  732 #  according to IEEE 802.1Q.
  733 device          vlan
  734 
  735 #  The `wlan' device provides generic code to support 802.11
  736 #  drivers, including host AP mode; it is MANDATORY for the wi,
  737 #  and ath drivers and will eventually be required by all 802.11 drivers.
  738 device          wlan
  739 options         IEEE80211_DEBUG         #enable debugging msgs
  740 options         IEEE80211_AMPDU_AGE     #age frames in AMPDU reorder q's
  741 options         IEEE80211_SUPPORT_MESH  #enable 802.11s D3.0 support
  742 options         IEEE80211_SUPPORT_TDMA  #enable TDMA support
  743 
  744 #  The `wlan_wep', `wlan_tkip', and `wlan_ccmp' devices provide
  745 #  support for WEP, TKIP, and AES-CCMP crypto protocols optionally
  746 #  used with 802.11 devices that depend on the `wlan' module.
  747 device          wlan_wep
  748 device          wlan_ccmp
  749 device          wlan_tkip
  750 
  751 #  The `wlan_xauth' device provides support for external (i.e. user-mode)
  752 #  authenticators for use with 802.11 drivers that use the `wlan'
  753 #  module and support 802.1x and/or WPA security protocols.
  754 device          wlan_xauth
  755 
  756 #  The `wlan_acl' device provides a MAC-based access control mechanism
  757 #  for use with 802.11 drivers operating in ap mode and using the
  758 #  `wlan' module.
  759 #  The 'wlan_amrr' device provides AMRR transmit rate control algorithm
  760 device          wlan_acl
  761 device          wlan_amrr
  762 
  763 # Generic TokenRing
  764 device          token
  765 
  766 #  The `fddi' device provides generic code to support FDDI.
  767 device          fddi
  768 
  769 #  The `arcnet' device provides generic code to support Arcnet.
  770 device          arcnet
  771 
  772 #  The `sppp' device serves a similar role for certain types
  773 #  of synchronous PPP links (like `cx', `ar').
  774 device          sppp
  775 
  776 #  The `bpf' device enables the Berkeley Packet Filter.  Be
  777 #  aware of the legal and administrative consequences of enabling this
  778 #  option.  The number of devices determines the maximum number of
  779 #  simultaneous BPF clients programs runnable.  DHCP requires bpf.
  780 device          bpf
  781 
  782 #  The `disc' device implements a minimal network interface,
  783 #  which throws away all packets sent and never receives any.  It is
  784 #  included for testing and benchmarking purposes.
  785 device          disc
  786 
  787 # The `epair' device implements a virtual back-to-back connected Ethernet
  788 # like interface pair.
  789 device          epair
  790 
  791 #  The `edsc' device implements a minimal Ethernet interface,
  792 #  which discards all packets sent and receives none.
  793 device          edsc
  794 
  795 #  The `tap' device is a pty-like virtual Ethernet interface
  796 device          tap
  797 
  798 #  The `tun' device implements (user-)ppp and nos-tun(8)
  799 device          tun
  800 
  801 #  The `gif' device implements IPv6 over IP4 tunneling,
  802 #  IPv4 over IPv6 tunneling, IPv4 over IPv4 tunneling and
  803 #  IPv6 over IPv6 tunneling.
  804 #  The `gre' device implements two types of IP4 over IP4 tunneling:
  805 #  GRE and MOBILE, as specified in the RFC1701 and RFC2004.
  806 #  The XBONEHACK option allows the same pair of addresses to be configured on
  807 #  multiple gif interfaces.
  808 device          gif
  809 device          gre
  810 options         XBONEHACK
  811 
  812 #  The `faith' device captures packets sent to it and diverts them
  813 #  to the IPv4/IPv6 translation daemon.
  814 #  The `stf' device implements 6to4 encapsulation.
  815 device          faith
  816 device          stf
  817 
  818 #  The `ef' device provides support for multiple ethernet frame types
  819 #  specified via ETHER_* options. See ef(4) for details.
  820 device          ef
  821 options         ETHER_II                # enable Ethernet_II frame
  822 options         ETHER_8023              # enable Ethernet_802.3 (Novell) frame
  823 options         ETHER_8022              # enable Ethernet_802.2 frame
  824 options         ETHER_SNAP              # enable Ethernet_802.2/SNAP frame
  825 
  826 # The pf packet filter consists of three devices:
  827 #  The `pf' device provides /dev/pf and the firewall code itself.
  828 #  The `pflog' device provides the pflog0 interface which logs packets.
  829 #  The `pfsync' device provides the pfsync0 interface used for
  830 #   synchronization of firewall state tables (over the net).
  831 device          pf
  832 device          pflog
  833 device          pfsync
  834 
  835 # Bridge interface.
  836 device          if_bridge
  837 
  838 # Common Address Redundancy Protocol. See carp(4) for more details.
  839 device          carp
  840 
  841 # IPsec interface.
  842 device          enc
  843 
  844 # Link aggregation interface.
  845 device          lagg
  846 
  847 #
  848 # Internet family options:
  849 #
  850 # MROUTING enables the kernel multicast packet forwarder, which works
  851 # with mrouted and XORP.
  852 #
  853 # IPFIREWALL enables support for IP firewall construction, in
  854 # conjunction with the `ipfw' program.  IPFIREWALL_VERBOSE sends
  855 # logged packets to the system logger.  IPFIREWALL_VERBOSE_LIMIT
  856 # limits the number of times a matching entry can be logged.
  857 #
  858 # WARNING:  IPFIREWALL defaults to a policy of "deny ip from any to any"
  859 # and if you do not add other rules during startup to allow access,
  860 # YOU WILL LOCK YOURSELF OUT.  It is suggested that you set firewall_type=open
  861 # in /etc/rc.conf when first enabling this feature, then refining the
  862 # firewall rules in /etc/rc.firewall after you've tested that the new kernel
  863 # feature works properly.
  864 #
  865 # IPFIREWALL_DEFAULT_TO_ACCEPT causes the default rule (at boot) to
  866 # allow everything.  Use with care, if a cracker can crash your
  867 # firewall machine, they can get to your protected machines.  However,
  868 # if you are using it as an as-needed filter for specific problems as
  869 # they arise, then this may be for you.  Changing the default to 'allow'
  870 # means that you won't get stuck if the kernel and /sbin/ipfw binary get
  871 # out of sync.
  872 #
  873 # IPDIVERT enables the divert IP sockets, used by ``ipfw divert''.  It
  874 # depends on IPFIREWALL if compiled into the kernel.
  875 #
  876 # IPFIREWALL_FORWARD enables changing of the packet destination either
  877 # to do some sort of policy routing or transparent proxying.  Used by
  878 # ``ipfw forward''. All  redirections apply to locally generated
  879 # packets too.  Because of this great care is required when
  880 # crafting the ruleset.
  881 #
  882 # IPFIREWALL_NAT adds support for in kernel nat in ipfw, and it requires
  883 # LIBALIAS.
  884 #
  885 # IPSTEALTH enables code to support stealth forwarding (i.e., forwarding
  886 # packets without touching the TTL).  This can be useful to hide firewalls
  887 # from traceroute and similar tools.
  888 #
  889 # TCPDEBUG enables code which keeps traces of the TCP state machine
  890 # for sockets with the SO_DEBUG option set, which can then be examined
  891 # using the trpt(8) utility.
  892 #
  893 options         MROUTING                # Multicast routing
  894 options         IPFIREWALL              #firewall
  895 options         IPFIREWALL_VERBOSE      #enable logging to syslogd(8)
  896 options         IPFIREWALL_VERBOSE_LIMIT=100    #limit verbosity
  897 options         IPFIREWALL_DEFAULT_TO_ACCEPT    #allow everything by default
  898 options         IPFIREWALL_FORWARD      #packet destination changes
  899 options         IPFIREWALL_NAT          #ipfw kernel nat support
  900 options         IPDIVERT                #divert sockets
  901 options         IPFILTER                #ipfilter support
  902 options         IPFILTER_LOG            #ipfilter logging
  903 options         IPFILTER_LOOKUP         #ipfilter pools
  904 options         IPFILTER_DEFAULT_BLOCK  #block all packets by default
  905 options         IPSTEALTH               #support for stealth forwarding
  906 options         TCPDEBUG
  907 
  908 # The MBUF_STRESS_TEST option enables options which create
  909 # various random failures / extreme cases related to mbuf
  910 # functions.  See mbuf(9) for a list of available test cases.
  911 # MBUF_PROFILING enables code to profile the mbuf chains
  912 # exiting the system (via participating interfaces) and
  913 # return a logarithmic histogram of monitored parameters
  914 # (e.g. packet size, wasted space, number of mbufs in chain).
  915 options         MBUF_STRESS_TEST
  916 options         MBUF_PROFILING
  917 
  918 # Statically Link in accept filters
  919 options         ACCEPT_FILTER_DATA
  920 options         ACCEPT_FILTER_DNS
  921 options         ACCEPT_FILTER_HTTP
  922 
  923 # TCP_SIGNATURE adds support for RFC 2385 (TCP-MD5) digests. These are
  924 # carried in TCP option 19. This option is commonly used to protect
  925 # TCP sessions (e.g. BGP) where IPSEC is not available nor desirable.
  926 # This is enabled on a per-socket basis using the TCP_MD5SIG socket option.
  927 # This requires the use of 'device crypto', 'options IPSEC'
  928 # or 'device cryptodev'.
  929 options         TCP_SIGNATURE           #include support for RFC 2385
  930 
  931 # DUMMYNET enables the "dummynet" bandwidth limiter.  You need IPFIREWALL
  932 # as well.  See dummynet(4) and ipfw(8) for more info.  When you run
  933 # DUMMYNET it is advisable to also have at least "options HZ=1000" to achieve
  934 # a smooth scheduling of the traffic.
  935 options         DUMMYNET
  936 
  937 # Zero copy sockets support.  This enables "zero copy" for sending and
  938 # receiving data via a socket.  The send side works for any type of NIC,
  939 # the receive side only works for NICs that support MTUs greater than the
  940 # page size of your architecture and that support header splitting.  See
  941 # zero_copy(9) for more details.
  942 options         ZERO_COPY_SOCKETS
  943 
  944 
  945 #####################################################################
  946 # FILESYSTEM OPTIONS
  947 
  948 #
  949 # Only the root, /usr, and /tmp filesystems need be statically
  950 # compiled; everything else will be automatically loaded at mount
  951 # time.  (Exception: the UFS family--- FFS --- cannot
  952 # currently be demand-loaded.)  Some people still prefer to statically
  953 # compile other filesystems as well.
  954 #
  955 # NB: The PORTAL filesystem is known to be buggy, and WILL panic your
  956 # system if you attempt to do anything with it.  It is included here
  957 # as an incentive for some enterprising soul to sit down and fix it.
  958 # The UNION filesystem was known to be buggy in the past.  It is now
  959 # being actively maintained, although there are still some issues being
  960 # resolved.
  961 #
  962 
  963 # One of these is mandatory:
  964 options         FFS                     #Fast filesystem
  965 options         NFSCLIENT               #Network File System client
  966 
  967 # The rest are optional:
  968 options         CD9660                  #ISO 9660 filesystem
  969 options         FDESCFS                 #File descriptor filesystem
  970 options         HPFS                    #OS/2 File system
  971 options         MSDOSFS                 #MS DOS File System (FAT, FAT32)
  972 options         NFSSERVER               #Network File System server
  973 options         NFSLOCKD                #Network Lock Manager
  974 options         NFSCL                   #experimental NFS client with NFSv4
  975 options         NFSD                    #experimental NFS server with NFSv4
  976 options         KGSSAPI                 #Kernel GSSAPI implementaion
  977 
  978 # NT File System. Read-mostly, see mount_ntfs(8) for details.
  979 # For a full read-write NTFS support consider sysutils/fusefs-ntfs
  980 # port/package.
  981 options         NTFS
  982 
  983 options         NULLFS                  #NULL filesystem
  984 # Broken (depends on NCP):
  985 #options        NWFS                    #NetWare filesystem
  986 options         PORTALFS                #Portal filesystem
  987 options         PROCFS                  #Process filesystem (requires PSEUDOFS)
  988 options         PSEUDOFS                #Pseudo-filesystem framework
  989 options         PSEUDOFS_TRACE          #Debugging support for PSEUDOFS
  990 options         SMBFS                   #SMB/CIFS filesystem
  991 options         UDF                     #Universal Disk Format
  992 options         UNIONFS                 #Union filesystem
  993 # The xFS_ROOT options REQUIRE the associated ``options xFS''
  994 options         NFS_ROOT                #NFS usable as root device
  995 
  996 # Soft updates is a technique for improving filesystem speed and
  997 # making abrupt shutdown less risky.
  998 #
  999 options         SOFTUPDATES
 1000 
 1001 # Extended attributes allow additional data to be associated with files,
 1002 # and is used for ACLs, Capabilities, and MAC labels.
 1003 # See src/sys/ufs/ufs/README.extattr for more information.
 1004 options         UFS_EXTATTR
 1005 options         UFS_EXTATTR_AUTOSTART
 1006 
 1007 # Access Control List support for UFS filesystems.  The current ACL
 1008 # implementation requires extended attribute support, UFS_EXTATTR,
 1009 # for the underlying filesystem.
 1010 # See src/sys/ufs/ufs/README.acls for more information.
 1011 options         UFS_ACL
 1012 
 1013 # Directory hashing improves the speed of operations on very large
 1014 # directories at the expense of some memory.
 1015 options         UFS_DIRHASH
 1016 
 1017 # Gjournal-based UFS journaling support.
 1018 options         UFS_GJOURNAL
 1019 
 1020 # Make space in the kernel for a root filesystem on a md device.
 1021 # Define to the number of kilobytes to reserve for the filesystem.
 1022 options         MD_ROOT_SIZE=10
 1023 
 1024 # Make the md device a potential root device, either with preloaded
 1025 # images of type mfs_root or md_root.
 1026 options         MD_ROOT
 1027 
 1028 # Disk quotas are supported when this option is enabled.
 1029 options         QUOTA                   #enable disk quotas
 1030 
 1031 # If you are running a machine just as a fileserver for PC and MAC
 1032 # users, using SAMBA or Netatalk, you may consider setting this option
 1033 # and keeping all those users' directories on a filesystem that is
 1034 # mounted with the suiddir option. This gives new files the same
 1035 # ownership as the directory (similar to group). It's a security hole
 1036 # if you let these users run programs, so confine it to file-servers
 1037 # (but it'll save you lots of headaches in those cases). Root owned
 1038 # directories are exempt and X bits are cleared. The suid bit must be
 1039 # set on the directory as well; see chmod(1) PC owners can't see/set
 1040 # ownerships so they keep getting their toes trodden on. This saves
 1041 # you all the support calls as the filesystem it's used on will act as
 1042 # they expect: "It's my dir so it must be my file".
 1043 #
 1044 options         SUIDDIR
 1045 
 1046 # NFS options:
 1047 options         NFS_MINATTRTIMO=3       # VREG attrib cache timeout in sec
 1048 options         NFS_MAXATTRTIMO=60
 1049 options         NFS_MINDIRATTRTIMO=30   # VDIR attrib cache timeout in sec
 1050 options         NFS_MAXDIRATTRTIMO=60
 1051 options         NFS_GATHERDELAY=10      # Default write gather delay (msec)
 1052 options         NFS_WDELAYHASHSIZ=16    # and with this
 1053 options         NFS_DEBUG               # Enable NFS Debugging
 1054 
 1055 # Coda stuff:
 1056 options         CODA                    #CODA filesystem.
 1057 device          vcoda                   #coda minicache <-> venus comm.
 1058 # Use the old Coda 5.x venus<->kernel interface instead of the new
 1059 # realms-aware 6.x protocol.
 1060 #options        CODA_COMPAT_5
 1061 
 1062 #
 1063 # Add support for the EXT2FS filesystem of Linux fame.  Be a bit
 1064 # careful with this - the ext2fs code has a tendency to lag behind
 1065 # changes and not be exercised very much, so mounting read/write could
 1066 # be dangerous (and even mounting read only could result in panics.)
 1067 #
 1068 options         EXT2FS
 1069 
 1070 #
 1071 # Add support for the ReiserFS filesystem (used in Linux). Currently,
 1072 # this is limited to read-only access.
 1073 #
 1074 options         REISERFS
 1075 
 1076 #
 1077 # Add support for the SGI XFS filesystem. Currently,
 1078 # this is limited to read-only access.
 1079 #
 1080 options         XFS
 1081 
 1082 # Use real implementations of the aio_* system calls.  There are numerous
 1083 # stability and security issues in the current aio code that make it
 1084 # unsuitable for inclusion on machines with untrusted local users.
 1085 options         VFS_AIO
 1086 
 1087 # Cryptographically secure random number generator; /dev/random
 1088 device          random
 1089 
 1090 # The system memory devices; /dev/mem, /dev/kmem
 1091 device          mem
 1092 
 1093 # The kernel symbol table device; /dev/ksyms
 1094 device          ksyms
 1095 
 1096 # Optional character code conversion support with LIBICONV.
 1097 # Each option requires their base file system and LIBICONV.
 1098 options         CD9660_ICONV
 1099 options         MSDOSFS_ICONV
 1100 options         NTFS_ICONV
 1101 options         UDF_ICONV
 1102 
 1103 
 1104 #####################################################################
 1105 # POSIX P1003.1B
 1106 
 1107 # Real time extensions added in the 1993 POSIX
 1108 # _KPOSIX_PRIORITY_SCHEDULING: Build in _POSIX_PRIORITY_SCHEDULING
 1109 
 1110 options         _KPOSIX_PRIORITY_SCHEDULING
 1111 # p1003_1b_semaphores are very experimental,
 1112 # user should be ready to assist in debugging if problems arise.
 1113 options         P1003_1B_SEMAPHORES
 1114 
 1115 # POSIX message queue
 1116 options         P1003_1B_MQUEUE
 1117 
 1118 #####################################################################
 1119 # SECURITY POLICY PARAMETERS
 1120 
 1121 # Support for BSM audit
 1122 options         AUDIT
 1123 
 1124 # Support for Mandatory Access Control (MAC):
 1125 options         MAC
 1126 options         MAC_BIBA
 1127 options         MAC_BSDEXTENDED
 1128 options         MAC_IFOFF
 1129 options         MAC_LOMAC
 1130 options         MAC_MLS
 1131 options         MAC_NONE
 1132 options         MAC_PARTITION
 1133 options         MAC_PORTACL
 1134 options         MAC_SEEOTHERUIDS
 1135 options         MAC_STUB
 1136 options         MAC_TEST
 1137 
 1138 
 1139 #####################################################################
 1140 # CLOCK OPTIONS
 1141 
 1142 # The granularity of operation is controlled by the kernel option HZ whose
 1143 # default value (1000 on most architectures) means a granularity of 1ms
 1144 # (1s/HZ).  Historically, the default was 100, but finer granularity is
 1145 # required for DUMMYNET and other systems on modern hardware.  There are
 1146 # reasonable arguments that HZ should, in fact, be 100 still; consider,
 1147 # that reducing the granularity too much might cause excessive overhead in
 1148 # clock interrupt processing, potentially causing ticks to be missed and thus
 1149 # actually reducing the accuracy of operation.
 1150 
 1151 options         HZ=100
 1152 
 1153 # Enable support for the kernel PLL to use an external PPS signal,
 1154 # under supervision of [x]ntpd(8)
 1155 # More info in ntpd documentation: http://www.eecis.udel.edu/~ntp
 1156 
 1157 options         PPS_SYNC
 1158 
 1159 
 1160 #####################################################################
 1161 # SCSI DEVICES
 1162 
 1163 # SCSI DEVICE CONFIGURATION
 1164 
 1165 # The SCSI subsystem consists of the `base' SCSI code, a number of
 1166 # high-level SCSI device `type' drivers, and the low-level host-adapter
 1167 # device drivers.  The host adapters are listed in the ISA and PCI
 1168 # device configuration sections below.
 1169 #
 1170 # It is possible to wire down your SCSI devices so that a given bus,
 1171 # target, and LUN always come on line as the same device unit.  In
 1172 # earlier versions the unit numbers were assigned in the order that
 1173 # the devices were probed on the SCSI bus.  This means that if you
 1174 # removed a disk drive, you may have had to rewrite your /etc/fstab
 1175 # file, and also that you had to be careful when adding a new disk
 1176 # as it may have been probed earlier and moved your device configuration
 1177 # around.  (See also option GEOM_VOL for a different solution to this
 1178 # problem.)
 1179 
 1180 # This old behavior is maintained as the default behavior.  The unit
 1181 # assignment begins with the first non-wired down unit for a device
 1182 # type.  For example, if you wire a disk as "da3" then the first
 1183 # non-wired disk will be assigned da4.
 1184 
 1185 # The syntax for wiring down devices is:
 1186 
 1187 hint.scbus.0.at="ahc0"
 1188 hint.scbus.1.at="ahc1"
 1189 hint.scbus.1.bus="0"
 1190 hint.scbus.3.at="ahc2"
 1191 hint.scbus.3.bus="0"
 1192 hint.scbus.2.at="ahc2"
 1193 hint.scbus.2.bus="1"
 1194 hint.da.0.at="scbus0"
 1195 hint.da.0.target="0"
 1196 hint.da.0.unit="0"
 1197 hint.da.1.at="scbus3"
 1198 hint.da.1.target="1"
 1199 hint.da.2.at="scbus2"
 1200 hint.da.2.target="3"
 1201 hint.sa.1.at="scbus1"
 1202 hint.sa.1.target="6"
 1203 
 1204 # "units" (SCSI logical unit number) that are not specified are
 1205 # treated as if specified as LUN 0.
 1206 
 1207 # All SCSI devices allocate as many units as are required.
 1208 
 1209 # The ch driver drives SCSI Media Changer ("jukebox") devices.
 1210 #
 1211 # The da driver drives SCSI Direct Access ("disk") and Optical Media
 1212 # ("WORM") devices.
 1213 #
 1214 # The sa driver drives SCSI Sequential Access ("tape") devices.
 1215 #
 1216 # The cd driver drives SCSI Read Only Direct Access ("cd") devices.
 1217 #
 1218 # The ses driver drives SCSI Environment Services ("ses") and
 1219 # SAF-TE ("SCSI Accessible Fault-Tolerant Enclosure") devices.
 1220 #
 1221 # The pt driver drives SCSI Processor devices.
 1222 #
 1223 # The sg driver provides a passthrough API that is compatible with the
 1224 # Linux SG driver.  It will work in conjunction with the COMPAT_LINUX
 1225 # option to run linux SG apps.  It can also stand on its own and provide
 1226 # source level API compatiblity for porting apps to FreeBSD.
 1227 #
 1228 # Target Mode support is provided here but also requires that a SIM
 1229 # (SCSI Host Adapter Driver) provide support as well.
 1230 #
 1231 # The targ driver provides target mode support as a Processor type device.
 1232 # It exists to give the minimal context necessary to respond to Inquiry
 1233 # commands. There is a sample user application that shows how the rest
 1234 # of the command support might be done in /usr/share/examples/scsi_target.
 1235 #
 1236 # The targbh driver provides target mode support and exists to respond
 1237 # to incoming commands that do not otherwise have a logical unit assigned
 1238 # to them.
 1239 #
 1240 # The "unknown" device (uk? in pre-2.0.5) is now part of the base SCSI
 1241 # configuration as the "pass" driver.
 1242 
 1243 device          scbus           #base SCSI code
 1244 device          ch              #SCSI media changers
 1245 device          da              #SCSI direct access devices (aka disks)
 1246 device          sa              #SCSI tapes
 1247 device          cd              #SCSI CD-ROMs
 1248 device          ses             #SCSI Environmental Services (and SAF-TE)
 1249 device          pt              #SCSI processor
 1250 device          targ            #SCSI Target Mode Code
 1251 device          targbh          #SCSI Target Mode Blackhole Device
 1252 device          pass            #CAM passthrough driver
 1253 device          sg              #Linux SCSI passthrough
 1254 
 1255 # CAM OPTIONS:
 1256 # debugging options:
 1257 # -- NOTE --  If you specify one of the bus/target/lun options, you must
 1258 #             specify them all!
 1259 # CAMDEBUG: When defined enables debugging macros
 1260 # CAM_DEBUG_BUS:  Debug the given bus.  Use -1 to debug all busses.
 1261 # CAM_DEBUG_TARGET:  Debug the given target.  Use -1 to debug all targets.
 1262 # CAM_DEBUG_LUN:  Debug the given lun.  Use -1 to debug all luns.
 1263 # CAM_DEBUG_FLAGS:  OR together CAM_DEBUG_INFO, CAM_DEBUG_TRACE,
 1264 #                   CAM_DEBUG_SUBTRACE, and CAM_DEBUG_CDB
 1265 #
 1266 # CAM_MAX_HIGHPOWER: Maximum number of concurrent high power (start unit) cmds
 1267 # SCSI_NO_SENSE_STRINGS: When defined disables sense descriptions
 1268 # SCSI_NO_OP_STRINGS: When defined disables opcode descriptions
 1269 # SCSI_DELAY: The number of MILLISECONDS to freeze the SIM (scsi adapter)
 1270 #             queue after a bus reset, and the number of milliseconds to
 1271 #             freeze the device queue after a bus device reset.  This
 1272 #             can be changed at boot and runtime with the
 1273 #             kern.cam.scsi_delay tunable/sysctl.
 1274 options         CAMDEBUG
 1275 options         CAM_DEBUG_BUS=-1
 1276 options         CAM_DEBUG_TARGET=-1
 1277 options         CAM_DEBUG_LUN=-1
 1278 options         CAM_DEBUG_FLAGS=(CAM_DEBUG_INFO|CAM_DEBUG_TRACE|CAM_DEBUG_CDB)
 1279 options         CAM_MAX_HIGHPOWER=4
 1280 options         SCSI_NO_SENSE_STRINGS
 1281 options         SCSI_NO_OP_STRINGS
 1282 options         SCSI_DELAY=5000 # Be pessimistic about Joe SCSI device
 1283 
 1284 # Options for the CAM CDROM driver:
 1285 # CHANGER_MIN_BUSY_SECONDS: Guaranteed minimum time quantum for a changer LUN
 1286 # CHANGER_MAX_BUSY_SECONDS: Maximum time quantum per changer LUN, only
 1287 #                           enforced if there is I/O waiting for another LUN
 1288 # The compiled in defaults for these variables are 2 and 10 seconds,
 1289 # respectively.
 1290 #
 1291 # These can also be changed on the fly with the following sysctl variables:
 1292 # kern.cam.cd.changer.min_busy_seconds
 1293 # kern.cam.cd.changer.max_busy_seconds
 1294 #
 1295 options         CHANGER_MIN_BUSY_SECONDS=2
 1296 options         CHANGER_MAX_BUSY_SECONDS=10
 1297 
 1298 # Options for the CAM sequential access driver:
 1299 # SA_IO_TIMEOUT: Timeout for read/write/wfm  operations, in minutes
 1300 # SA_SPACE_TIMEOUT: Timeout for space operations, in minutes
 1301 # SA_REWIND_TIMEOUT: Timeout for rewind operations, in minutes
 1302 # SA_ERASE_TIMEOUT: Timeout for erase operations, in minutes
 1303 # SA_1FM_AT_EOD: Default to model which only has a default one filemark at EOT.
 1304 options         SA_IO_TIMEOUT=4
 1305 options         SA_SPACE_TIMEOUT=60
 1306 options         SA_REWIND_TIMEOUT=(2*60)
 1307 options         SA_ERASE_TIMEOUT=(4*60)
 1308 options         SA_1FM_AT_EOD
 1309 
 1310 # Optional timeout for the CAM processor target (pt) device
 1311 # This is specified in seconds.  The default is 60 seconds.
 1312 options         SCSI_PT_DEFAULT_TIMEOUT=60
 1313 
 1314 # Optional enable of doing SES passthrough on other devices (e.g., disks)
 1315 #
 1316 # Normally disabled because a lot of newer SCSI disks report themselves
 1317 # as having SES capabilities, but this can then clot up attempts to build
 1318 # build a topology with the SES device that's on the box these drives
 1319 # are in....
 1320 options         SES_ENABLE_PASSTHROUGH
 1321 
 1322 
 1323 #####################################################################
 1324 # MISCELLANEOUS DEVICES AND OPTIONS
 1325 
 1326 device          pty             #BSD-style compatibility pseudo ttys
 1327 device          nmdm            #back-to-back tty devices
 1328 device          md              #Memory/malloc disk
 1329 device          snp             #Snoop device - to look at pty/vty/etc..
 1330 device          ccd             #Concatenated disk driver
 1331 device          firmware        #firmware(9) support
 1332 
 1333 # Kernel side iconv library
 1334 options         LIBICONV
 1335 
 1336 # Size of the kernel message buffer.  Should be N * pagesize.
 1337 options         MSGBUF_SIZE=40960
 1338 
 1339 
 1340 #####################################################################
 1341 # HARDWARE DEVICE CONFIGURATION
 1342 
 1343 # For ISA the required hints are listed.
 1344 # EISA, MCA, PCI, CardBus, SD/MMC and pccard are self identifying buses, so
 1345 # no hints are needed.
 1346 
 1347 #
 1348 # Mandatory devices:
 1349 #
 1350 
 1351 # These options are valid for other keyboard drivers as well.
 1352 options         KBD_DISABLE_KEYMAP_LOAD # refuse to load a keymap
 1353 options         KBD_INSTALL_CDEV        # install a CDEV entry in /dev
 1354 
 1355 options         FB_DEBUG                # Frame buffer debugging
 1356 
 1357 device          splash                  # Splash screen and screen saver support
 1358 
 1359 # Various screen savers.
 1360 device          blank_saver
 1361 device          daemon_saver
 1362 device          dragon_saver
 1363 device          fade_saver
 1364 device          fire_saver
 1365 device          green_saver
 1366 device          logo_saver
 1367 device          rain_saver
 1368 device          snake_saver
 1369 device          star_saver
 1370 device          warp_saver
 1371 
 1372 # The syscons console driver (SCO color console compatible).
 1373 device          sc
 1374 hint.sc.0.at="isa"
 1375 options         MAXCONS=16              # number of virtual consoles
 1376 options         SC_ALT_MOUSE_IMAGE      # simplified mouse cursor in text mode
 1377 options         SC_DFLT_FONT            # compile font in
 1378 makeoptions     SC_DFLT_FONT=cp850
 1379 options         SC_DISABLE_KDBKEY       # disable `debug' key
 1380 options         SC_DISABLE_REBOOT       # disable reboot key sequence
 1381 options         SC_HISTORY_SIZE=200     # number of history buffer lines
 1382 options         SC_MOUSE_CHAR=0x3       # char code for text mode mouse cursor
 1383 options         SC_PIXEL_MODE           # add support for the raster text mode
 1384 
 1385 # The following options will let you change the default colors of syscons.
 1386 options         SC_NORM_ATTR=(FG_GREEN|BG_BLACK)
 1387 options         SC_NORM_REV_ATTR=(FG_YELLOW|BG_GREEN)
 1388 options         SC_KERNEL_CONS_ATTR=(FG_RED|BG_BLACK)
 1389 options         SC_KERNEL_CONS_REV_ATTR=(FG_BLACK|BG_RED)
 1390 
 1391 # The following options will let you change the default behaviour of
 1392 # cut-n-paste feature
 1393 options         SC_CUT_SPACES2TABS      # convert leading spaces into tabs
 1394 options         SC_CUT_SEPCHARS=\"x09\" # set of characters that delimit words
 1395                                         # (default is single space - \"x20\")
 1396 
 1397 # If you have a two button mouse, you may want to add the following option
 1398 # to use the right button of the mouse to paste text.
 1399 options         SC_TWOBUTTON_MOUSE
 1400 
 1401 # You can selectively disable features in syscons.
 1402 options         SC_NO_CUTPASTE
 1403 options         SC_NO_FONT_LOADING
 1404 options         SC_NO_HISTORY
 1405 options         SC_NO_MODE_CHANGE
 1406 options         SC_NO_SYSMOUSE
 1407 options         SC_NO_SUSPEND_VTYSWITCH
 1408 
 1409 # `flags' for sc
 1410 #       0x80    Put the video card in the VESA 800x600 dots, 16 color mode
 1411 #       0x100   Probe for a keyboard device periodically if one is not present
 1412 
 1413 # Enable experimental features of the syscons terminal emulator (teken).
 1414 options         TEKEN_UTF8              # UTF-8 output handling
 1415 options         TEKEN_XTERM             # xterm-style terminal emulation
 1416 
 1417 #
 1418 # Optional devices:
 1419 #
 1420 
 1421 #
 1422 # SCSI host adapters:
 1423 #
 1424 # adv: All Narrow SCSI bus AdvanSys controllers.
 1425 # adw: Second Generation AdvanSys controllers including the ADV940UW.
 1426 # aha: Adaptec 154x/1535/1640
 1427 # ahb: Adaptec 174x EISA controllers
 1428 # ahc: Adaptec 274x/284x/2910/293x/294x/394x/3950x/3960x/398X/4944/
 1429 #      19160x/29160x, aic7770/aic78xx
 1430 # ahd: Adaptec 29320/39320 Controllers.
 1431 # aic: Adaptec 6260/6360, APA-1460 (PC Card), NEC PC9801-100 (C-BUS)
 1432 # amd: Support for the AMD 53C974 SCSI host adapter chip as found on devices
 1433 #      such as the Tekram DC-390(T).
 1434 # bt:  Most Buslogic controllers: including BT-445, BT-54x, BT-64x, BT-74x,
 1435 #      BT-75x, BT-946, BT-948, BT-956, BT-958, SDC3211B, SDC3211F, SDC3222F
 1436 # esp: NCR53c9x.  Only for SBUS hardware right now.
 1437 # isp: Qlogic ISP 1020, 1040 and 1040B PCI SCSI host adapters,
 1438 #      ISP 1240 Dual Ultra SCSI, ISP 1080 and 1280 (Dual) Ultra2,
 1439 #      ISP 12160 Ultra3 SCSI,
 1440 #      Qlogic ISP 2100 and ISP 2200 1Gb Fibre Channel host adapters.
 1441 #      Qlogic ISP 2300 and ISP 2312 2Gb Fibre Channel host adapters.
 1442 #      Qlogic ISP 2322 and ISP 6322 2Gb Fibre Channel host adapters.
 1443 # ispfw: Firmware module for Qlogic host adapters
 1444 # mpt: LSI-Logic MPT/Fusion 53c1020 or 53c1030 Ultra4
 1445 #      or FC9x9 Fibre Channel host adapters.
 1446 # ncr: NCR 53C810, 53C825 self-contained SCSI host adapters.
 1447 # sym: Symbios/Logic 53C8XX family of PCI-SCSI I/O processors:
 1448 #      53C810, 53C810A, 53C815, 53C825,  53C825A, 53C860, 53C875,
 1449 #      53C876, 53C885,  53C895, 53C895A, 53C896,  53C897, 53C1510D,
 1450 #      53C1010-33, 53C1010-66.
 1451 # trm: Tekram DC395U/UW/F DC315U adapters.
 1452 # wds: WD7000
 1453 
 1454 #
 1455 # Note that the order is important in order for Buslogic ISA/EISA cards to be
 1456 # probed correctly.
 1457 #
 1458 device          bt
 1459 hint.bt.0.at="isa"
 1460 hint.bt.0.port="0x330"
 1461 device          adv
 1462 hint.adv.0.at="isa"
 1463 device          adw
 1464 device          aha
 1465 hint.aha.0.at="isa"
 1466 device          aic
 1467 hint.aic.0.at="isa"
 1468 device          ahb
 1469 device          ahc
 1470 device          ahd
 1471 device          amd
 1472 device          esp
 1473 device          iscsi_initiator
 1474 device          isp
 1475 hint.isp.0.disable="1"
 1476 hint.isp.0.role="3"
 1477 hint.isp.0.prefer_iomap="1"
 1478 hint.isp.0.prefer_memmap="1"
 1479 hint.isp.0.fwload_disable="1"
 1480 hint.isp.0.ignore_nvram="1"
 1481 hint.isp.0.fullduplex="1"
 1482 hint.isp.0.topology="lport"
 1483 hint.isp.0.topology="nport"
 1484 hint.isp.0.topology="lport-only"
 1485 hint.isp.0.topology="nport-only"
 1486 # we can't get u_int64_t types, nor can we get strings if it's got
 1487 # a leading 0x, hence this silly dodge.
 1488 hint.isp.0.portwnn="w50000000aaaa0000"
 1489 hint.isp.0.nodewnn="w50000000aaaa0001"
 1490 device          ispfw
 1491 device          mpt
 1492 device          ncr
 1493 device          sym
 1494 device          trm
 1495 device          wds
 1496 hint.wds.0.at="isa"
 1497 hint.wds.0.port="0x350"
 1498 hint.wds.0.irq="11"
 1499 hint.wds.0.drq="6"
 1500 
 1501 # The aic7xxx driver will attempt to use memory mapped I/O for all PCI
 1502 # controllers that have it configured only if this option is set. Unfortunately,
 1503 # this doesn't work on some motherboards, which prevents it from being the
 1504 # default.
 1505 options         AHC_ALLOW_MEMIO
 1506 
 1507 # Dump the contents of the ahc controller configuration PROM.
 1508 options         AHC_DUMP_EEPROM
 1509 
 1510 # Bitmap of units to enable targetmode operations.
 1511 options         AHC_TMODE_ENABLE
 1512 
 1513 # Compile in Aic7xxx Debugging code.
 1514 options         AHC_DEBUG
 1515 
 1516 # Aic7xxx driver debugging options. See sys/dev/aic7xxx/aic7xxx.h
 1517 options         AHC_DEBUG_OPTS
 1518 
 1519 # Print register bitfields in debug output.  Adds ~128k to driver
 1520 # See ahc(4).
 1521 options         AHC_REG_PRETTY_PRINT
 1522 
 1523 # Compile in aic79xx debugging code.
 1524 options         AHD_DEBUG
 1525 
 1526 # Aic79xx driver debugging options.  Adds ~215k to driver.  See ahd(4).
 1527 options         AHD_DEBUG_OPTS=0xFFFFFFFF
 1528 
 1529 # Print human-readable register definitions when debugging
 1530 options         AHD_REG_PRETTY_PRINT
 1531 
 1532 # Bitmap of units to enable targetmode operations.
 1533 options         AHD_TMODE_ENABLE
 1534 
 1535 # The adw driver will attempt to use memory mapped I/O for all PCI
 1536 # controllers that have it configured only if this option is set.
 1537 options         ADW_ALLOW_MEMIO
 1538 
 1539 # Options used in dev/iscsi (Software iSCSI stack)
 1540 #
 1541 options         ISCSI_INITIATOR_DEBUG=9
 1542 
 1543 # Options used in dev/isp/ (Qlogic SCSI/FC driver).
 1544 #
 1545 #       ISP_TARGET_MODE         -       enable target mode operation
 1546 #
 1547 options         ISP_TARGET_MODE=1
 1548 #
 1549 #       ISP_DEFAULT_ROLES       -       default role
 1550 #               none=0
 1551 #               target=1
 1552 #               initiator=2
 1553 #               both=3                  (not supported currently)
 1554 #
 1555 options         ISP_DEFAULT_ROLES=2
 1556 
 1557 # Options used in dev/sym/ (Symbios SCSI driver).
 1558 #options        SYM_SETUP_LP_PROBE_MAP  #-Low Priority Probe Map (bits)
 1559                                         # Allows the ncr to take precedence
 1560                                         # 1 (1<<0) -> 810a, 860
 1561                                         # 2 (1<<1) -> 825a, 875, 885, 895
 1562                                         # 4 (1<<2) -> 895a, 896, 1510d
 1563 #options        SYM_SETUP_SCSI_DIFF     #-HVD support for 825a, 875, 885
 1564                                         # disabled:0 (default), enabled:1
 1565 #options        SYM_SETUP_PCI_PARITY    #-PCI parity checking
 1566                                         # disabled:0, enabled:1 (default)
 1567 #options        SYM_SETUP_MAX_LUN       #-Number of LUNs supported
 1568                                         # default:8, range:[1..64]
 1569 
 1570 # The 'dpt' driver provides support for old DPT controllers (http://www.dpt.com/).
 1571 # These have hardware RAID-{0,1,5} support, and do multi-initiator I/O.
 1572 # The DPT controllers are commonly re-licensed under other brand-names -
 1573 # some controllers by Olivetti, Dec, HP, AT&T, SNI, AST, Alphatronic, NEC and
 1574 # Compaq are actually DPT controllers.
 1575 #
 1576 # See src/sys/dev/dpt for debugging and other subtle options.
 1577 #   DPT_MEASURE_PERFORMANCE Enables a set of (semi)invasive metrics. Various
 1578 #                           instruments are enabled.  The tools in
 1579 #                           /usr/sbin/dpt_* assume these to be enabled.
 1580 #   DPT_HANDLE_TIMEOUTS     Normally device timeouts are handled by the DPT.
 1581 #                           If you ant the driver to handle timeouts, enable
 1582 #                           this option.  If your system is very busy, this
 1583 #                           option will create more trouble than solve.
 1584 #   DPT_TIMEOUT_FACTOR      Used to compute the excessive amount of time to
 1585 #                           wait when timing out with the above option.
 1586 #  DPT_DEBUG_xxxx           These are controllable from sys/dev/dpt/dpt.h
 1587 #  DPT_LOST_IRQ             When enabled, will try, once per second, to catch
 1588 #                           any interrupt that got lost.  Seems to help in some
 1589 #                           DPT-firmware/Motherboard combinations.  Minimal
 1590 #                           cost, great benefit.
 1591 #  DPT_RESET_HBA            Make "reset" actually reset the controller
 1592 #                           instead of fudging it.  Only enable this if you
 1593 #                           are 100% certain you need it.
 1594 
 1595 device          dpt
 1596 
 1597 # DPT options
 1598 #!CAM# options  DPT_MEASURE_PERFORMANCE
 1599 #!CAM# options  DPT_HANDLE_TIMEOUTS
 1600 options         DPT_TIMEOUT_FACTOR=4
 1601 options         DPT_LOST_IRQ
 1602 options         DPT_RESET_HBA
 1603 
 1604 #
 1605 # Compaq "CISS" RAID controllers (SmartRAID 5* series)
 1606 # These controllers have a SCSI-like interface, and require the
 1607 # CAM infrastructure.
 1608 #
 1609 device          ciss
 1610 
 1611 #
 1612 # Intel Integrated RAID controllers.
 1613 # This driver was developed and is maintained by Intel.  Contacts
 1614 # at Intel for this driver are
 1615 # "Kannanthanam, Boji T" <boji.t.kannanthanam@intel.com> and
 1616 # "Leubner, Achim" <achim.leubner@intel.com>.
 1617 #
 1618 device          iir
 1619 
 1620 #
 1621 # Mylex AcceleRAID and eXtremeRAID controllers with v6 and later
 1622 # firmware.  These controllers have a SCSI-like interface, and require
 1623 # the CAM infrastructure.
 1624 #
 1625 device          mly
 1626 
 1627 #
 1628 # Compaq Smart RAID, Mylex DAC960 and AMI MegaRAID controllers.  Only
 1629 # one entry is needed; the code will find and configure all supported
 1630 # controllers.
 1631 #
 1632 device          ida             # Compaq Smart RAID
 1633 device          mlx             # Mylex DAC960
 1634 device          amr             # AMI MegaRAID
 1635 device          amrp            # SCSI Passthrough interface (optional, CAM req.)
 1636 device          mfi             # LSI MegaRAID SAS
 1637 device          mfip            # LSI MegaRAID SAS passthrough, requires CAM
 1638 options         MFI_DEBUG
 1639 
 1640 #
 1641 # 3ware ATA RAID
 1642 #
 1643 device          twe             # 3ware ATA RAID
 1644 
 1645 #
 1646 # Serial ATA host controllers:
 1647 #
 1648 # ahci: Advanced Host Controller Interface (AHCI) compatible
 1649 # mvs:  Marvell 88SX50XX/88SX60XX/88SX70XX/SoC controllers
 1650 # siis: SiliconImage SiI3124/SiI3132/SiI3531 controllers
 1651 #
 1652 # These drivers are part of cam(4) subsystem. They supersede less featured
 1653 # ata(4) subsystem drivers, supporting same hardware.
 1654 
 1655 device          ahci
 1656 device          mvs
 1657 device          siis
 1658 
 1659 #
 1660 # The 'ATA' driver supports all ATA and ATAPI devices, including PC Card
 1661 # devices. You only need one "device ata" for it to find all
 1662 # PCI and PC Card ATA/ATAPI devices on modern machines.
 1663 # Alternatively, individual bus and chipset drivers may be chosen by using
 1664 # the 'atacore' driver then selecting the drivers on a per vendor basis.
 1665 # For example to build a system which only supports a VIA chipset,
 1666 # omit 'ata' and include the 'atacore', 'atapci' and 'atavia' drivers.
 1667 device          ata
 1668 device          atadisk         # ATA disk drives
 1669 device          ataraid         # ATA RAID drives
 1670 device          atapicd         # ATAPI CDROM drives
 1671 device          atapifd         # ATAPI floppy drives
 1672 device          atapist         # ATAPI tape drives
 1673 device          atapicam        # emulate ATAPI devices as SCSI ditto via CAM
 1674                                 # needs CAM to be present (scbus & pass)
 1675 
 1676 # Modular ATA
 1677 #device         atacore         # Core ATA functionality
 1678 #device         atacard         # CARDBUS support
 1679 #device         atabus          # PC98 cbus support
 1680 #device         ataisa          # ISA bus support
 1681 #device         atapci          # PCI bus support; only generic chipset support
 1682 
 1683 # PCI ATA chipsets
 1684 #device         ataahci         # AHCI SATA
 1685 #device         ataacard        # ACARD
 1686 #device         ataacerlabs     # Acer Labs Inc. (ALI)
 1687 #device         ataadaptec      # Adaptec
 1688 #device         ataamd          # American Micro Devices (AMD)
 1689 #device         ataati          # ATI
 1690 #device         atacenatek      # Cenatek
 1691 #device         atacypress      # Cypress
 1692 #device         atacyrix        # Cyrix
 1693 #device         atahighpoint    # HighPoint
 1694 #device         ataintel        # Intel
 1695 #device         ataite          # Integrated Technology Inc. (ITE)
 1696 #device         atajmicron      # JMicron
 1697 #device         atamarvell      # Marvell
 1698 #device         atamicron       # Micron
 1699 #device         atanational     # National
 1700 #device         atanetcell      # NetCell
 1701 #device         atanvidia       # nVidia
 1702 #device         atapromise      # Promise
 1703 #device         ataserverworks  # ServerWorks
 1704 #device         atasiliconimage # Silicon Image Inc. (SiI) (formerly CMD)
 1705 #device         atasis          # Silicon Integrated Systems Corp.(SiS)
 1706 #device         atavia          # VIA Technologies Inc.
 1707 
 1708 #
 1709 # For older non-PCI, non-PnPBIOS systems, these are the hints lines to add:
 1710 hint.ata.0.at="isa"
 1711 hint.ata.0.port="0x1f0"
 1712 hint.ata.0.irq="14"
 1713 hint.ata.1.at="isa"
 1714 hint.ata.1.port="0x170"
 1715 hint.ata.1.irq="15"
 1716 
 1717 #
 1718 # The following options are valid on the ATA driver:
 1719 #
 1720 # ATA_STATIC_ID:        controller numbering is static ie depends on location
 1721 #                       else the device numbers are dynamically allocated.
 1722 # ATA_REQUEST_TIMEOUT:  the number of seconds to wait for an ATA request
 1723 #                       before timing out.
 1724 # ATA_CAM:              Turn ata(4) subsystem controller drivers into cam(4)
 1725 #                       interface modules. This deprecates all ata(4)
 1726 #                       peripheral device drivers (atadisk, ataraid, atapicd,
 1727 #                       atapifd. atapist, atapicam) and all user-level APIs.
 1728 #                       cam(4) drivers and APIs will be connected instead.
 1729 
 1730 options         ATA_STATIC_ID
 1731 #options        ATA_REQUEST_TIMEOUT=10
 1732 #options        ATA_CAM
 1733 
 1734 #
 1735 # Standard floppy disk controllers and floppy tapes, supports
 1736 # the Y-E DATA External FDD (PC Card)
 1737 #
 1738 device          fdc
 1739 hint.fdc.0.at="isa"
 1740 hint.fdc.0.port="0x3F0"
 1741 hint.fdc.0.irq="6"
 1742 hint.fdc.0.drq="2"
 1743 #
 1744 # FDC_DEBUG enables floppy debugging.  Since the debug output is huge, you
 1745 # gotta turn it actually on by setting the variable fd_debug with DDB,
 1746 # however.
 1747 options         FDC_DEBUG
 1748 #
 1749 # Activate this line if you happen to have an Insight floppy tape.
 1750 # Probing them proved to be dangerous for people with floppy disks only,
 1751 # so it's "hidden" behind a flag:
 1752 #hint.fdc.0.flags="1"
 1753 
 1754 # Specify floppy devices
 1755 hint.fd.0.at="fdc0"
 1756 hint.fd.0.drive="0"
 1757 hint.fd.1.at="fdc0"
 1758 hint.fd.1.drive="1"
 1759 
 1760 #
 1761 # uart: newbusified driver for serial interfaces.  It consolidates the sio(4),
 1762 #       sab(4) and zs(4) drivers.
 1763 #
 1764 device          uart
 1765 
 1766 # Options for uart(4)
 1767 options         UART_PPS_ON_CTS         # Do time pulse capturing using CTS
 1768                                         # instead of DCD.
 1769 
 1770 # The following hint should only be used for pure ISA devices.  It is not
 1771 # needed otherwise.  Use of hints is strongly discouraged.
 1772 hint.uart.0.at="isa"
 1773 
 1774 # The following 3 hints are used when the UART is a system device (i.e., a
 1775 # console or debug port), but only on platforms that don't have any other
 1776 # means to pass the information to the kernel.  The unit number of the hint
 1777 # is only used to bundle the hints together.  There is no relation to the
 1778 # unit number of the probed UART.
 1779 hint.uart.0.port="0x3f8"
 1780 hint.uart.0.flags="0x10"
 1781 hint.uart.0.baud="115200"
 1782 
 1783 # `flags' for serial drivers that support consoles like sio(4) and uart(4):
 1784 #       0x10    enable console support for this unit.  Other console flags
 1785 #               (if applicable) are ignored unless this is set.  Enabling
 1786 #               console support does not make the unit the preferred console.
 1787 #               Boot with -h or set boot_serial=YES in the loader.  For sio(4)
 1788 #               specifically, the 0x20 flag can also be set (see above).
 1789 #               Currently, at most one unit can have console support; the
 1790 #               first one (in config file order) with this flag set is
 1791 #               preferred.  Setting this flag for sio0 gives the old behaviour.
 1792 #       0x80    use this port for serial line gdb support in ddb.  Also known
 1793 #               as debug port.
 1794 #
 1795 
 1796 # Options for serial drivers that support consoles:
 1797 options         BREAK_TO_DEBUGGER       # A BREAK on a serial console goes to
 1798                                         # ddb, if available.
 1799 
 1800 # Solaris implements a new BREAK which is initiated by a character
 1801 # sequence CR ~ ^b which is similar to a familiar pattern used on
 1802 # Sun servers by the Remote Console.  There are FreeBSD extentions:
 1803 # CR ~ ^p requests force panic and CR ~ ^r requests a clean reboot.
 1804 options         ALT_BREAK_TO_DEBUGGER
 1805 
 1806 # Serial Communications Controller
 1807 # Supports the Siemens SAB 82532 and Zilog Z8530 multi-channel
 1808 # communications controllers.
 1809 device          scc
 1810 
 1811 # PCI Universal Communications driver
 1812 # Supports various multi port PCI I/O cards.
 1813 device          puc
 1814 
 1815 #
 1816 # Network interfaces:
 1817 #
 1818 # MII bus support is required for some PCI 10/100 ethernet NICs,
 1819 # namely those which use MII-compliant transceivers or implement
 1820 # transceiver control interfaces that operate like an MII. Adding
 1821 # "device miibus" to the kernel config pulls in support for
 1822 # the generic miibus API and all of the PHY drivers, including a
 1823 # generic one for PHYs that aren't specifically handled by an
 1824 # individual driver.
 1825 device          miibus
 1826 
 1827 # an:   Aironet 4500/4800 802.11 wireless adapters. Supports the PCMCIA,
 1828 #       PCI and ISA varieties.
 1829 # ae:   Support for gigabit ethernet adapters based on the Attansic/Atheros
 1830 #       L2 PCI-Express FastEthernet controllers.
 1831 # age:  Support for gigabit ethernet adapters based on the Attansic/Atheros
 1832 #       L1 PCI express gigabit ethernet controllers.
 1833 # alc:  Support for Atheros AR8131/AR8132 PCIe ethernet controllers.
 1834 # ale:  Support for Atheros AR8121/AR8113/AR8114 PCIe ethernet controllers.
 1835 # bce:  Broadcom NetXtreme II (BCM5706/BCM5708) PCI/PCIe Gigabit Ethernet
 1836 #       adapters.
 1837 # bfe:  Broadcom BCM4401 Ethernet adapter.
 1838 # bge:  Support for gigabit ethernet adapters based on the Broadcom
 1839 #       BCM570x family of controllers, including the 3Com 3c996-T,
 1840 #       the Netgear GA302T, the SysKonnect SK-9D21 and SK-9D41, and
 1841 #       the embedded gigE NICs on Dell PowerEdge 2550 servers.
 1842 # bwi:  Broadcom BCM430* and BCM431* family of wireless adapters.
 1843 # cas:  Sun Cassini/Cassini+ and National Semiconductor DP83065 Saturn
 1844 # cm:   Arcnet SMC COM90c26 / SMC COM90c56
 1845 #       (and SMC COM90c66 in '56 compatibility mode) adapters.
 1846 # dc:   Support for PCI fast ethernet adapters based on the DEC/Intel 21143
 1847 #       and various workalikes including:
 1848 #       the ADMtek AL981 Comet and AN985 Centaur, the ASIX Electronics
 1849 #       AX88140A and AX88141, the Davicom DM9100 and DM9102, the Lite-On
 1850 #       82c168 and 82c169 PNIC, the Lite-On/Macronix LC82C115 PNIC II
 1851 #       and the Macronix 98713/98713A/98715/98715A/98725 PMAC. This driver
 1852 #       replaces the old al, ax, dm, pn and mx drivers.  List of brands:
 1853 #       Digital DE500-BA, Kingston KNE100TX, D-Link DFE-570TX, SOHOware SFA110,
 1854 #       SVEC PN102-TX, CNet Pro110B, 120A, and 120B, Compex RL100-TX,
 1855 #       LinkSys LNE100TX, LNE100TX V2.0, Jaton XpressNet, Alfa Inc GFC2204,
 1856 #       KNE110TX.
 1857 # de:   Digital Equipment DC21040
 1858 # em:   Intel Pro/1000 Gigabit Ethernet 82542, 82543, 82544 based adapters.
 1859 # igb:  Intel Pro/1000 PCI Express Gigabit Ethernet: 82575 and later adapters.
 1860 # ep:   3Com 3C509, 3C529, 3C556, 3C562D, 3C563D, 3C572, 3C574X, 3C579, 3C589
 1861 #       and PC Card devices using these chipsets.
 1862 # ex:   Intel EtherExpress Pro/10 and other i82595-based adapters,
 1863 #       Olicom Ethernet PC Card devices.
 1864 # fe:   Fujitsu MB86960A/MB86965A Ethernet
 1865 # fea:  DEC DEFEA EISA FDDI adapter
 1866 # fpa:  Support for the Digital DEFPA PCI FDDI. `device fddi' is also needed.
 1867 # fxp:  Intel EtherExpress Pro/100B
 1868 #       (hint of prefer_iomap can be done to prefer I/O instead of Mem mapping)
 1869 # gem:  Apple GMAC/Sun ERI/Sun GEM
 1870 # hme:  Sun HME (Happy Meal Ethernet)
 1871 # jme:  JMicron JMC260 Fast Ethernet/JMC250 Gigabit Ethernet based adapters.
 1872 # le:   AMD Am7900 LANCE and Am79C9xx PCnet
 1873 # lge:  Support for PCI gigabit ethernet adapters based on the Level 1
 1874 #       LXT1001 NetCellerator chipset. This includes the D-Link DGE-500SX,
 1875 #       SMC TigerCard 1000 (SMC9462SX), and some Addtron cards.
 1876 # msk:  Support for gigabit ethernet adapters based on the Marvell/SysKonnect
 1877 #       Yukon II Gigabit controllers, including 88E8021, 88E8022, 88E8061,
 1878 #       88E8062, 88E8035, 88E8036, 88E8038, 88E8050, 88E8052, 88E8053,
 1879 #       88E8055, 88E8056 and D-Link 560T/550SX.
 1880 # lmc:  Support for the LMC/SBE wide-area network interface cards.
 1881 # my:   Myson Fast Ethernet (MTD80X, MTD89X)
 1882 # nge:  Support for PCI gigabit ethernet adapters based on the National
 1883 #       Semiconductor DP83820 and DP83821 chipset. This includes the
 1884 #       SMC EZ Card 1000 (SMC9462TX), D-Link DGE-500T, Asante FriendlyNet
 1885 #       GigaNIX 1000TA and 1000TPC, the Addtron AEG320T, the Surecom
 1886 #       EP-320G-TX and the Netgear GA622T.
 1887 # pcn:  Support for PCI fast ethernet adapters based on the AMD Am79c97x
 1888 #       PCnet-FAST, PCnet-FAST+, PCnet-FAST III, PCnet-PRO and PCnet-Home
 1889 #       chipsets. These can also be handled by the le(4) driver if the
 1890 #       pcn(4) driver is left out of the kernel. The le(4) driver does not
 1891 #       support the additional features like the MII bus and burst mode of
 1892 #       the PCnet-FAST and greater chipsets though.
 1893 # re:   RealTek 8139C+/8169/816xS/811xS/8101E PCI/PCIe Ethernet adapter
 1894 # rl:   Support for PCI fast ethernet adapters based on the RealTek 8129/8139
 1895 #       chipset.  Note that the RealTek driver defaults to using programmed
 1896 #       I/O to do register accesses because memory mapped mode seems to cause
 1897 #       severe lockups on SMP hardware.  This driver also supports the
 1898 #       Accton EN1207D `Cheetah' adapter, which uses a chip called
 1899 #       the MPX 5030/5038, which is either a RealTek in disguise or a
 1900 #       RealTek workalike.  Note that the D-Link DFE-530TX+ uses the RealTek
 1901 #       chipset and is supported by this driver, not the 'vr' driver.
 1902 # sf:   Support for Adaptec Duralink PCI fast ethernet adapters based on the
 1903 #       Adaptec AIC-6915 "starfire" controller.
 1904 #       This includes dual and quad port cards, as well as one 100baseFX card.
 1905 #       Most of these are 64-bit PCI devices, except for one single port
 1906 #       card which is 32-bit.
 1907 # sge:  Silicon Integrated Systems SiS190/191 Fast/Gigabit Ethernet adapter
 1908 # sis:  Support for NICs based on the Silicon Integrated Systems SiS 900,
 1909 #       SiS 7016 and NS DP83815 PCI fast ethernet controller chips.
 1910 # sk:   Support for the SysKonnect SK-984x series PCI gigabit ethernet NICs.
 1911 #       This includes the SK-9841 and SK-9842 single port cards (single mode
 1912 #       and multimode fiber) and the SK-9843 and SK-9844 dual port cards
 1913 #       (also single mode and multimode).
 1914 #       The driver will autodetect the number of ports on the card and
 1915 #       attach each one as a separate network interface.
 1916 # sn:   Support for ISA and PC Card Ethernet devices using the
 1917 #       SMC91C90/92/94/95 chips.
 1918 # ste:  Sundance Technologies ST201 PCI fast ethernet controller, includes
 1919 #       the D-Link DFE-550TX.
 1920 # stge: Support for gigabit ethernet adapters based on the Sundance/Tamarack
 1921 #       TC9021 family of controllers, including the Sundance ST2021/ST2023,
 1922 #       the Sundance/Tamarack TC9021, the D-Link DL-4000 and ASUS NX1101.
 1923 # ti:   Support for PCI gigabit ethernet NICs based on the Alteon Networks
 1924 #       Tigon 1 and Tigon 2 chipsets.  This includes the Alteon AceNIC, the
 1925 #       3Com 3c985, the Netgear GA620 and various others.  Note that you will
 1926 #       probably want to bump up kern.ipc.nmbclusters a lot to use this driver.
 1927 # tl:   Support for the Texas Instruments TNETE100 series 'ThunderLAN'
 1928 #       cards and integrated ethernet controllers.  This includes several
 1929 #       Compaq Netelligent 10/100 cards and the built-in ethernet controllers
 1930 #       in several Compaq Prosignia, Proliant and Deskpro systems.  It also
 1931 #       supports several Olicom 10Mbps and 10/100 boards.
 1932 # tx:   SMC 9432 TX, BTX and FTX cards. (SMC EtherPower II series)
 1933 # txp:  Support for 3Com 3cR990 cards with the "Typhoon" chipset
 1934 # vr:   Support for various fast ethernet adapters based on the VIA
 1935 #       Technologies VT3043 `Rhine I' and VT86C100A `Rhine II' chips,
 1936 #       including the D-Link DFE530TX (see 'rl' for DFE530TX+), the Hawking
 1937 #       Technologies PN102TX, and the AOpen/Acer ALN-320.
 1938 # vx:   3Com 3C590 and 3C595
 1939 # wb:   Support for fast ethernet adapters based on the Winbond W89C840F chip.
 1940 #       Note: this is not the same as the Winbond W89C940F, which is a
 1941 #       NE2000 clone.
 1942 # wi:   Lucent WaveLAN/IEEE 802.11 PCMCIA adapters. Note: this supports both
 1943 #       the PCMCIA and ISA cards: the ISA card is really a PCMCIA to ISA
 1944 #       bridge with a PCMCIA adapter plugged into it.
 1945 # xe:   Xircom/Intel EtherExpress Pro100/16 PC Card ethernet controller,
 1946 #       Accton Fast EtherCard-16, Compaq Netelligent 10/100 PC Card,
 1947 #       Toshiba 10/100 Ethernet PC Card, Xircom 16-bit Ethernet + Modem 56
 1948 # xl:   Support for the 3Com 3c900, 3c905, 3c905B and 3c905C (Fast)
 1949 #       Etherlink XL cards and integrated controllers.  This includes the
 1950 #       integrated 3c905B-TX chips in certain Dell Optiplex and Dell
 1951 #       Precision desktop machines and the integrated 3c905-TX chips
 1952 #       in Dell Latitude laptop docking stations.
 1953 #       Also supported: 3Com 3c980(C)-TX, 3Com 3cSOHO100-TX, 3Com 3c450-TX
 1954 
 1955 # Order for ISA/EISA devices is important here
 1956 
 1957 device          cm
 1958 hint.cm.0.at="isa"
 1959 hint.cm.0.port="0x2e0"
 1960 hint.cm.0.irq="9"
 1961 hint.cm.0.maddr="0xdc000"
 1962 device          ep
 1963 device          ex
 1964 device          fe
 1965 hint.fe.0.at="isa"
 1966 hint.fe.0.port="0x300"
 1967 device          fea
 1968 device          sn
 1969 hint.sn.0.at="isa"
 1970 hint.sn.0.port="0x300"
 1971 hint.sn.0.irq="10"
 1972 device          an
 1973 device          wi
 1974 device          xe
 1975 
 1976 # PCI Ethernet NICs that use the common MII bus controller code.
 1977 device          ae              # Attansic/Atheros L2 FastEthernet
 1978 device          age             # Attansic/Atheros L1 Gigabit Ethernet
 1979 device          alc             # Atheros AR8131/AR8132 Ethernet
 1980 device          ale             # Atheros AR8121/AR8113/AR8114 Ethernet
 1981 device          bce             # Broadcom BCM5706/BCM5708 Gigabit Ethernet
 1982 device          bfe             # Broadcom BCM440x 10/100 Ethernet
 1983 device          bge             # Broadcom BCM570xx Gigabit Ethernet
 1984 device          cas             # Sun Cassini/Cassini+ and NS DP83065 Saturn
 1985 device          cxgb            # Chelsio T3 10 Gigabit Ethernet
 1986 device          cxgb_t3fw       # Chelsio T3 10 Gigabit Ethernet firmware
 1987 device          dc              # DEC/Intel 21143 and various workalikes
 1988 device          et              # Agere ET1310 10/100/Gigabit Ethernet
 1989 device          fxp             # Intel EtherExpress PRO/100B (82557, 82558)
 1990 hint.fxp.0.prefer_iomap="0"
 1991 device          gem             # Apple GMAC/Sun ERI/Sun GEM
 1992 device          hme             # Sun HME (Happy Meal Ethernet)
 1993 device          jme             # JMicron JMC250 Gigabit/JMC260 Fast Ethernet
 1994 device          lge             # Level 1 LXT1001 gigabit Ethernet
 1995 device          msk             # Marvell/SysKonnect Yukon II Gigabit Ethernet
 1996 device          my              # Myson Fast Ethernet (MTD80X, MTD89X)
 1997 device          nge             # NatSemi DP83820 gigabit Ethernet
 1998 device          re              # RealTek 8139C+/8169/8169S/8110S
 1999 device          rl              # RealTek 8129/8139
 2000 device          pcn             # AMD Am79C97x PCI 10/100 NICs
 2001 device          sf              # Adaptec AIC-6915 (``Starfire'')
 2002 device          sge             # Silicon Integrated Systems SiS190/191
 2003 device          sis             # Silicon Integrated Systems SiS 900/SiS 7016
 2004 device          sk              # SysKonnect SK-984x & SK-982x gigabit Ethernet
 2005 device          ste             # Sundance ST201 (D-Link DFE-550TX)
 2006 device          stge            # Sundance/Tamarack TC9021 gigabit Ethernet
 2007 device          tl              # Texas Instruments ThunderLAN
 2008 device          tx              # SMC EtherPower II (83c170 ``EPIC'')
 2009 device          vr              # VIA Rhine, Rhine II
 2010 device          wb              # Winbond W89C840F
 2011 device          xl              # 3Com 3c90x (``Boomerang'', ``Cyclone'')
 2012 
 2013 # PCI Ethernet NICs.
 2014 device          bwi             # Broadcom BCM430* BCM431*
 2015 device          de              # DEC/Intel DC21x4x (``Tulip'')
 2016 device          em              # Intel Pro/1000 Gigabit Ethernet
 2017 device          igb             # Intel Pro/1000 PCIE Gigabit Ethernet
 2018 device          ixgbe           # Intel Pro/10Gbe PCIE Ethernet
 2019 device          le              # AMD Am7900 LANCE and Am79C9xx PCnet
 2020 device          mxge            # Myricom Myri-10G 10GbE NIC
 2021 device          nxge            # Neterion Xframe 10GbE Server/Storage Adapter
 2022 device          ti              # Alteon Networks Tigon I/II gigabit Ethernet
 2023 device          txp             # 3Com 3cR990 (``Typhoon'')
 2024 device          vx              # 3Com 3c590, 3c595 (``Vortex'')
 2025 
 2026 # PCI FDDI NICs.
 2027 device          fpa
 2028 
 2029 # PCI WAN adapters.
 2030 device          lmc
 2031 
 2032 # Use "private" jumbo buffers allocated exclusively for the ti(4) driver.
 2033 # This option is incompatible with the TI_JUMBO_HDRSPLIT option below.
 2034 #options        TI_PRIVATE_JUMBOS
 2035 # Turn on the header splitting option for the ti(4) driver firmware.  This
 2036 # only works for Tigon II chips, and has no effect for Tigon I chips.
 2037 options         TI_JUMBO_HDRSPLIT
 2038 
 2039 #
 2040 # Use header splitting feature on bce(4) adapters.
 2041 # This may help to reduce the amount of jumbo-sized memory buffers used.
 2042 #
 2043 options         BCE_JUMBO_HDRSPLIT
 2044 
 2045 # These two options allow manipulating the mbuf cluster size and mbuf size,
 2046 # respectively.  Be very careful with NIC driver modules when changing
 2047 # these from their default values, because that can potentially cause a
 2048 # mismatch between the mbuf size assumed by the kernel and the mbuf size
 2049 # assumed by a module.  The only driver that currently has the ability to
 2050 # detect a mismatch is ti(4).
 2051 options         MCLSHIFT=12     # mbuf cluster shift in bits, 12 == 4KB
 2052 options         MSIZE=512       # mbuf size in bytes
 2053 
 2054 #
 2055 # ATM related options (Cranor version)
 2056 # (note: this driver cannot be used with the HARP ATM stack)
 2057 #
 2058 # The `en' device provides support for Efficient Networks (ENI)
 2059 # ENI-155 PCI midway cards, and the Adaptec 155Mbps PCI ATM cards (ANA-59x0).
 2060 #
 2061 # The `hatm' device provides support for Fore/Marconi HE155 and HE622
 2062 # ATM PCI cards.
 2063 #
 2064 # The `fatm' device provides support for Fore PCA200E ATM PCI cards.
 2065 #
 2066 # The `patm' device provides support for IDT77252 based cards like
 2067 # ProSum's ProATM-155 and ProATM-25 and IDT's evaluation boards.
 2068 #
 2069 # atm device provides generic atm functions and is required for
 2070 # atm devices.
 2071 # NATM enables the netnatm protocol family that can be used to
 2072 # bypass TCP/IP.
 2073 #
 2074 # utopia provides the access to the ATM PHY chips and is required for en,
 2075 # hatm and fatm.
 2076 #
 2077 # the current driver supports only PVC operations (no atm-arp, no multicast).
 2078 # for more details, please read the original documents at
 2079 # http://www.ccrc.wustl.edu/pub/chuck/tech/bsdatm/bsdatm.html
 2080 #
 2081 device          atm
 2082 device          en
 2083 device          fatm                    #Fore PCA200E
 2084 device          hatm                    #Fore/Marconi HE155/622
 2085 device          patm                    #IDT77252 cards (ProATM and IDT)
 2086 device          utopia                  #ATM PHY driver
 2087 #options        NATM                    #native ATM
 2088 
 2089 options         LIBMBPOOL               #needed by patm, iatm
 2090 
 2091 #
 2092 # Sound drivers
 2093 #
 2094 # sound: The generic sound driver.
 2095 #
 2096 
 2097 device          sound
 2098 
 2099 #
 2100 # snd_*: Device-specific drivers.
 2101 #
 2102 # The flags of the device tells the device a bit more info about the
 2103 # device that normally is obtained through the PnP interface.
 2104 #       bit  2..0   secondary DMA channel;
 2105 #       bit  4      set if the board uses two dma channels;
 2106 #       bit 15..8   board type, overrides autodetection; leave it
 2107 #                   zero if don't know what to put in (and you don't,
 2108 #                   since this is unsupported at the moment...).
 2109 #
 2110 # snd_ad1816:           Analog Devices AD1816 ISA PnP/non-PnP.
 2111 # snd_als4000:          Avance Logic ALS4000 PCI.
 2112 # snd_atiixp:           ATI IXP 200/300/400 PCI.
 2113 # snd_audiocs:          Crystal Semiconductor CS4231 SBus/EBus. Only
 2114 #                       for sparc64.
 2115 # snd_cmi:              CMedia CMI8338/CMI8738 PCI.
 2116 # snd_cs4281:           Crystal Semiconductor CS4281 PCI.
 2117 # snd_csa:              Crystal Semiconductor CS461x/428x PCI. (except
 2118 #                       4281)
 2119 # snd_ds1:              Yamaha DS-1 PCI.
 2120 # snd_emu10k1:          Creative EMU10K1 PCI and EMU10K2 (Audigy) PCI.
 2121 # snd_emu10kx:          Creative SoundBlaster Live! and Audigy
 2122 # snd_envy24:           VIA Envy24 and compatible, needs snd_spicds.
 2123 # snd_envy24ht:         VIA Envy24HT and compatible, needs snd_spicds.
 2124 # snd_es137x:           Ensoniq AudioPCI ES137x PCI.
 2125 # snd_ess:              Ensoniq ESS ISA PnP/non-PnP, to be used in
 2126 #                       conjunction with snd_sbc.
 2127 # snd_fm801:            Forte Media FM801 PCI.
 2128 # snd_gusc:             Gravis UltraSound ISA PnP/non-PnP.
 2129 # snd_hda:              Intel High Definition Audio (Controller) and
 2130 #                       compatible.
 2131 # snd_ich:              Intel ICH AC'97 and some more audio controllers
 2132 #                       embedded in a chipset, for example nVidia
 2133 #                       nForce controllers.
 2134 # snd_maestro:          ESS Technology Maestro-1/2x PCI.
 2135 # snd_maestro3:         ESS Technology Maestro-3/Allegro PCI.
 2136 # snd_mss:              Microsoft Sound System ISA PnP/non-PnP.
 2137 # snd_neomagic:         Neomagic 256 AV/ZX PCI.
 2138 # snd_sb16:             Creative SoundBlaster16, to be used in
 2139 #                       conjunction with snd_sbc.
 2140 # snd_sb8:              Creative SoundBlaster (pre-16), to be used in
 2141 #                       conjunction with snd_sbc.
 2142 # snd_sbc:              Creative SoundBlaster ISA PnP/non-PnP.
 2143 #                       Supports ESS and Avance ISA chips as well.
 2144 # snd_spicds:           SPI codec driver, needed by Envy24/Envy24HT drivers.
 2145 # snd_solo:             ESS Solo-1x PCI.
 2146 # snd_t4dwave:          Trident 4DWave DX/NX PCI, Sis 7018 PCI and Acer Labs
 2147 #                       M5451 PCI.
 2148 # snd_via8233:          VIA VT8233x PCI.
 2149 # snd_via82c686:        VIA VT82C686A PCI.
 2150 # snd_vibes:            S3 Sonicvibes PCI.
 2151 # snd_uaudio:           USB audio.
 2152 
 2153 device          snd_ad1816
 2154 device          snd_als4000
 2155 device          snd_atiixp
 2156 #device         snd_audiocs
 2157 device          snd_cmi
 2158 device          snd_cs4281
 2159 device          snd_csa
 2160 device          snd_ds1
 2161 device          snd_emu10k1
 2162 device          snd_emu10kx
 2163 device          snd_envy24
 2164 device          snd_envy24ht
 2165 device          snd_es137x
 2166 device          snd_ess
 2167 device          snd_fm801
 2168 device          snd_gusc
 2169 device          snd_hda
 2170 device          snd_ich
 2171 device          snd_maestro
 2172 device          snd_maestro3
 2173 device          snd_mss
 2174 device          snd_neomagic
 2175 device          snd_sb16
 2176 device          snd_sb8
 2177 device          snd_sbc
 2178 device          snd_solo
 2179 device          snd_spicds
 2180 device          snd_t4dwave
 2181 device          snd_via8233
 2182 device          snd_via82c686
 2183 device          snd_vibes
 2184 device          snd_uaudio
 2185 
 2186 # For non-PnP sound cards:
 2187 hint.pcm.0.at="isa"
 2188 hint.pcm.0.irq="10"
 2189 hint.pcm.0.drq="1"
 2190 hint.pcm.0.flags="0x0"
 2191 hint.sbc.0.at="isa"
 2192 hint.sbc.0.port="0x220"
 2193 hint.sbc.0.irq="5"
 2194 hint.sbc.0.drq="1"
 2195 hint.sbc.0.flags="0x15"
 2196 hint.gusc.0.at="isa"
 2197 hint.gusc.0.port="0x220"
 2198 hint.gusc.0.irq="5"
 2199 hint.gusc.0.drq="1"
 2200 hint.gusc.0.flags="0x13"
 2201 
 2202 #
 2203 # Following options are intended for debugging/testing purposes:
 2204 #
 2205 # SND_DEBUG                    Enable extra debugging code that includes
 2206 #                              sanity checking and possible increase of
 2207 #                              verbosity.
 2208 #
 2209 # SND_DIAGNOSTIC               Simmilar in a spirit of INVARIANTS/DIAGNOSTIC,
 2210 #                              zero tolerance against inconsistencies.
 2211 #
 2212 # SND_FEEDER_MULTIFORMAT       By default, only 16/32 bit feeders are compiled
 2213 #                              in. This options enable most feeder converters
 2214 #                              except for 8bit. WARNING: May bloat the kernel.
 2215 #
 2216 # SND_FEEDER_FULL_MULTIFORMAT  Ditto, but includes 8bit feeders as well.
 2217 #
 2218 # SND_FEEDER_RATE_HP           (feeder_rate) High precision 64bit arithmetic
 2219 #                              as much as possible (the default trying to
 2220 #                              avoid it). Possible slowdown.
 2221 #
 2222 # SND_PCM_64                   (Only applicable for i386/32bit arch)
 2223 #                              Process 32bit samples through 64bit
 2224 #                              integer/arithmetic. Slight increase of dynamic
 2225 #                              range at a cost of possible slowdown.
 2226 #
 2227 # SND_OLDSTEREO                Only 2 channels are allowed, effectively
 2228 #                              disabling multichannel processing.
 2229 #
 2230 options         SND_DEBUG
 2231 options         SND_DIAGNOSTIC
 2232 options         SND_FEEDER_MULTIFORMAT
 2233 options         SND_FEEDER_FULL_MULTIFORMAT
 2234 options         SND_FEEDER_RATE_HP
 2235 options         SND_PCM_64
 2236 options         SND_OLDSTEREO
 2237 
 2238 #
 2239 # IEEE-488 hardware:
 2240 # pcii:         PCIIA cards (uPD7210 based isa cards)
 2241 # tnt4882:      National Instruments PCI-GPIB card.
 2242 
 2243 device  pcii
 2244 hint.pcii.0.at="isa"
 2245 hint.pcii.0.port="0x2e1"
 2246 hint.pcii.0.irq="5"
 2247 hint.pcii.0.drq="1"
 2248 
 2249 device  tnt4882
 2250 
 2251 #
 2252 # Miscellaneous hardware:
 2253 #
 2254 # scd: Sony CD-ROM using proprietary (non-ATAPI) interface
 2255 # mcd: Mitsumi CD-ROM using proprietary (non-ATAPI) interface
 2256 # bktr: Brooktree bt848/848a/849a/878/879 video capture and TV Tuner board
 2257 # joy: joystick (including IO DATA PCJOY PC Card joystick)
 2258 # cmx: OmniKey CardMan 4040 pccard smartcard reader
 2259 
 2260 # Mitsumi CD-ROM
 2261 device          mcd
 2262 hint.mcd.0.at="isa"
 2263 hint.mcd.0.port="0x300"
 2264 # for the Sony CDU31/33A CDROM
 2265 device          scd
 2266 hint.scd.0.at="isa"
 2267 hint.scd.0.port="0x230"
 2268 device          joy                     # PnP aware, hints for non-PnP only
 2269 hint.joy.0.at="isa"
 2270 hint.joy.0.port="0x201"
 2271 device          cmx
 2272 
 2273 #
 2274 # The 'bktr' device is a PCI video capture device using the Brooktree
 2275 # bt848/bt848a/bt849a/bt878/bt879 chipset. When used with a TV Tuner it forms a
 2276 # TV card, e.g. Miro PC/TV, Hauppauge WinCast/TV WinTV, VideoLogic Captivator,
 2277 # Intel Smart Video III, AverMedia, IMS Turbo, FlyVideo.
 2278 #
 2279 # options       OVERRIDE_CARD=xxx
 2280 # options       OVERRIDE_TUNER=xxx
 2281 # options       OVERRIDE_MSP=1
 2282 # options       OVERRIDE_DBX=1
 2283 # These options can be used to override the auto detection
 2284 # The current values for xxx are found in src/sys/dev/bktr/bktr_card.h
 2285 # Using sysctl(8) run-time overrides on a per-card basis can be made
 2286 #
 2287 # options       BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_PAL
 2288 # or
 2289 # options       BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_NTSC
 2290 # Specifies the default video capture mode.
 2291 # This is required for Dual Crystal (28&35Mhz) boards where PAL is used
 2292 # to prevent hangs during initialisation, e.g. VideoLogic Captivator PCI.
 2293 #
 2294 # options       BKTR_USE_PLL
 2295 # This is required for PAL or SECAM boards with a 28Mhz crystal and no 35Mhz
 2296 # crystal, e.g. some new Bt878 cards.
 2297 #
 2298 # options       BKTR_GPIO_ACCESS
 2299 # This enable IOCTLs which give user level access to the GPIO port.
 2300 #
 2301 # options       BKTR_NO_MSP_RESET
 2302 # Prevents the MSP34xx reset. Good if you initialise the MSP in another OS first
 2303 #
 2304 # options       BKTR_430_FX_MODE
 2305 # Switch Bt878/879 cards into Intel 430FX chipset compatibility mode.
 2306 #
 2307 # options       BKTR_SIS_VIA_MODE
 2308 # Switch Bt878/879 cards into SIS/VIA chipset compatibility mode which is
 2309 # needed for some old SiS and VIA chipset motherboards.
 2310 # This also allows Bt878/879 chips to work on old OPTi (<1997) chipset
 2311 # motherboards and motherboards with bad or incomplete PCI 2.1 support.
 2312 # As a rough guess, old = before 1998
 2313 #
 2314 # options       BKTR_NEW_MSP34XX_DRIVER
 2315 # Use new, more complete initialization scheme for the msp34* soundchip.
 2316 # Should fix stereo autodetection if the old driver does only output
 2317 # mono sound.
 2318 
 2319 #
 2320 # options       BKTR_USE_FREEBSD_SMBUS
 2321 # Compile with FreeBSD SMBus implementation
 2322 #
 2323 # Brooktree driver has been ported to the new I2C framework. Thus,
 2324 # you'll need to have the following 3 lines in the kernel config.
 2325 #     device smbus
 2326 #     device iicbus
 2327 #     device iicbb
 2328 #     device iicsmb
 2329 # The iic and smb devices are only needed if you want to control other
 2330 # I2C slaves connected to the external connector of some cards.
 2331 #
 2332 device          bktr
 2333  
 2334 #
 2335 # PC Card/PCMCIA and Cardbus
 2336 #
 2337 # cbb: pci/cardbus bridge implementing YENTA interface
 2338 # pccard: pccard slots
 2339 # cardbus: cardbus slots
 2340 device          cbb
 2341 device          pccard
 2342 device          cardbus
 2343 
 2344 #
 2345 # MMC/SD
 2346 #
 2347 # mmc           MMC/SD bus
 2348 # mmcsd         MMC/SD memory card
 2349 # sdhci         Generic PCI SD Host Controller
 2350 #
 2351 device          mmc
 2352 device          mmcsd
 2353 device          sdhci
 2354 
 2355 #
 2356 # SMB bus
 2357 #
 2358 # System Management Bus support is provided by the 'smbus' device.
 2359 # Access to the SMBus device is via the 'smb' device (/dev/smb*),
 2360 # which is a child of the 'smbus' device.
 2361 #
 2362 # Supported devices:
 2363 # smb           standard I/O through /dev/smb*
 2364 #
 2365 # Supported SMB interfaces:
 2366 # iicsmb        I2C to SMB bridge with any iicbus interface
 2367 # bktr          brooktree848 I2C hardware interface
 2368 # intpm         Intel PIIX4 (82371AB, 82443MX) Power Management Unit
 2369 # alpm          Acer Aladdin-IV/V/Pro2 Power Management Unit
 2370 # ichsmb        Intel ICH SMBus controller chips (82801AA, 82801AB, 82801BA)
 2371 # viapm         VIA VT82C586B/596B/686A and VT8233 Power Management Unit
 2372 # amdpm         AMD 756 Power Management Unit
 2373 # amdsmb        AMD 8111 SMBus 2.0 Controller
 2374 # nfpm          NVIDIA nForce Power Management Unit
 2375 # nfsmb         NVIDIA nForce2/3/4 MCP SMBus 2.0 Controller
 2376 #
 2377 device          smbus           # Bus support, required for smb below.
 2378 
 2379 device          intpm
 2380 device          alpm
 2381 device          ichsmb
 2382 device          viapm
 2383 device          amdpm
 2384 device          amdsmb
 2385 device          nfpm
 2386 device          nfsmb
 2387 
 2388 device          smb
 2389 
 2390 #
 2391 # I2C Bus
 2392 #
 2393 # Philips i2c bus support is provided by the `iicbus' device.
 2394 #
 2395 # Supported devices:
 2396 # ic    i2c network interface
 2397 # iic   i2c standard io
 2398 # iicsmb i2c to smb bridge. Allow i2c i/o with smb commands.
 2399 #
 2400 # Supported interfaces:
 2401 # bktr  brooktree848 I2C software interface
 2402 #
 2403 # Other:
 2404 # iicbb generic I2C bit-banging code (needed by lpbb, bktr)
 2405 #
 2406 device          iicbus          # Bus support, required for ic/iic/iicsmb below.
 2407 device          iicbb
 2408 
 2409 device          ic
 2410 device          iic
 2411 device          iicsmb          # smb over i2c bridge
 2412 
 2413 # I2C peripheral devices
 2414 #
 2415 # ds133x        Dallas Semiconductor DS1337, DS1338 and DS1339 RTC
 2416 # ds1672        Dallas Semiconductor DS1672 RTC
 2417 #
 2418 device          ds133x
 2419 device          ds1672
 2420 
 2421 # Parallel-Port Bus
 2422 #
 2423 # Parallel port bus support is provided by the `ppbus' device.
 2424 # Multiple devices may be attached to the parallel port, devices
 2425 # are automatically probed and attached when found.
 2426 #
 2427 # Supported devices:
 2428 # vpo   Iomega Zip Drive
 2429 #       Requires SCSI disk support ('scbus' and 'da'), best
 2430 #       performance is achieved with ports in EPP 1.9 mode.
 2431 # lpt   Parallel Printer
 2432 # plip  Parallel network interface
 2433 # ppi   General-purpose I/O ("Geek Port") + IEEE1284 I/O
 2434 # pps   Pulse per second Timing Interface
 2435 # lpbb  Philips official parallel port I2C bit-banging interface
 2436 # pcfclock Parallel port clock driver.
 2437 #
 2438 # Supported interfaces:
 2439 # ppc   ISA-bus parallel port interfaces.
 2440 #
 2441 
 2442 options         PPC_PROBE_CHIPSET # Enable chipset specific detection
 2443                                   # (see flags in ppc(4))
 2444 options         DEBUG_1284      # IEEE1284 signaling protocol debug
 2445 options         PERIPH_1284     # Makes your computer act as an IEEE1284
 2446                                 # compliant peripheral
 2447 options         DONTPROBE_1284  # Avoid boot detection of PnP parallel devices
 2448 options         VP0_DEBUG       # ZIP/ZIP+ debug
 2449 options         LPT_DEBUG       # Printer driver debug
 2450 options         PPC_DEBUG       # Parallel chipset level debug
 2451 options         PLIP_DEBUG      # Parallel network IP interface debug
 2452 options         PCFCLOCK_VERBOSE         # Verbose pcfclock driver
 2453 options         PCFCLOCK_MAX_RETRIES=5   # Maximum read tries (default 10)
 2454 
 2455 device          ppc
 2456 hint.ppc.0.at="isa"
 2457 hint.ppc.0.irq="7"
 2458 device          ppbus
 2459 device          vpo
 2460 device          lpt
 2461 device          plip
 2462 device          ppi
 2463 device          pps
 2464 device          lpbb
 2465 device          pcfclock
 2466 
 2467 # Kernel BOOTP support
 2468 
 2469 options         BOOTP           # Use BOOTP to obtain IP address/hostname
 2470                                 # Requires NFSCLIENT and NFS_ROOT
 2471 options         BOOTP_NFSROOT   # NFS mount root filesystem using BOOTP info
 2472 options         BOOTP_NFSV3     # Use NFS v3 to NFS mount root
 2473 options         BOOTP_COMPAT    # Workaround for broken bootp daemons.
 2474 options         BOOTP_WIRED_TO=fxp0 # Use interface fxp0 for BOOTP
 2475 options         BOOTP_BLOCKSIZE=8192 # Override NFS block size
 2476 
 2477 #
 2478 # Add software watchdog routines.
 2479 #
 2480 options         SW_WATCHDOG
 2481 
 2482 #
 2483 # Add the software deadlock resolver thread.
 2484 #
 2485 options         DEADLKRES
 2486 
 2487 #
 2488 # Disable swapping of stack pages.  This option removes all
 2489 # code which actually performs swapping, so it's not possible to turn
 2490 # it back on at run-time.
 2491 #
 2492 # This is sometimes usable for systems which don't have any swap space
 2493 # (see also sysctls "vm.defer_swapspace_pageouts" and
 2494 # "vm.disable_swapspace_pageouts")
 2495 #
 2496 #options        NO_SWAPPING
 2497 
 2498 # Set the number of sf_bufs to allocate. sf_bufs are virtual buffers
 2499 # for sendfile(2) that are used to map file VM pages, and normally
 2500 # default to a quantity that is roughly 16*MAXUSERS+512. You would
 2501 # typically want about 4 of these for each simultaneous file send.
 2502 #
 2503 options         NSFBUFS=1024
 2504 
 2505 #
 2506 # Enable extra debugging code for locks.  This stores the filename and
 2507 # line of whatever acquired the lock in the lock itself, and change a
 2508 # number of function calls to pass around the relevant data.  This is
 2509 # not at all useful unless you are debugging lock code.  Also note
 2510 # that it is likely to break e.g. fstat(1) unless you recompile your
 2511 # userland with -DDEBUG_LOCKS as well.
 2512 #
 2513 options         DEBUG_LOCKS
 2514 
 2515 
 2516 #####################################################################
 2517 # USB support
 2518 # UHCI controller
 2519 device          uhci
 2520 # OHCI controller
 2521 device          ohci
 2522 # EHCI controller
 2523 device          ehci
 2524 # SL811 Controller
 2525 #device         slhci
 2526 # General USB code (mandatory for USB)
 2527 device          usb
 2528 #
 2529 # USB Double Bulk Pipe devices
 2530 device          udbp
 2531 # USB Fm Radio
 2532 device          ufm
 2533 # Human Interface Device (anything with buttons and dials)
 2534 device          uhid
 2535 # USB keyboard
 2536 device          ukbd
 2537 # USB printer
 2538 device          ulpt
 2539 # USB mass storage driver (Requires scbus and da)
 2540 device          umass
 2541 # USB mass storage driver for device-side mode
 2542 device          usfs
 2543 # USB support for Belkin F5U109 and Magic Control Technology serial adapters
 2544 device          umct
 2545 # USB modem support
 2546 device          umodem
 2547 # USB mouse
 2548 device          ums
 2549 # eGalax USB touch screen
 2550 device          uep
 2551 # Diamond Rio 500 MP3 player
 2552 device          urio
 2553 #
 2554 # USB serial support
 2555 device          ucom
 2556 # USB support for 3G modem cards by Option, Novatel, Huawei and Sierra
 2557 device          u3g
 2558 # USB support for Technologies ARK3116 based serial adapters
 2559 device          uark
 2560 # USB support for Belkin F5U103 and compatible serial adapters
 2561 device          ubsa
 2562 # USB support for serial adapters based on the FT8U100AX and FT8U232AM
 2563 device          uftdi
 2564 # USB support for some Windows CE based serial communication.
 2565 device          uipaq
 2566 # USB support for Prolific PL-2303 serial adapters
 2567 device          uplcom
 2568 # USB support for Silicon Laboratories CP2101/CP2102 based USB serial adapters
 2569 device          uslcom
 2570 # USB Visor and Palm devices
 2571 device          uvisor
 2572 # USB serial support for DDI pocket's PHS
 2573 device          uvscom
 2574 #
 2575 # ADMtek USB ethernet. Supports the LinkSys USB100TX,
 2576 # the Billionton USB100, the Melco LU-ATX, the D-Link DSB-650TX
 2577 # and the SMC 2202USB. Also works with the ADMtek AN986 Pegasus
 2578 # eval board.
 2579 device          aue
 2580 
 2581 # ASIX Electronics AX88172 USB 2.0 ethernet driver. Used in the
 2582 # LinkSys USB200M and various other adapters.
 2583 device          axe
 2584 
 2585 #
 2586 # Devices which communicate using Ethernet over USB, particularly
 2587 # Communication Device Class (CDC) Ethernet specification. Supports
 2588 # Sharp Zaurus PDAs, some DOCSIS cable modems and so on.
 2589 device          cdce
 2590 #
 2591 # CATC USB-EL1201A USB ethernet. Supports the CATC Netmate
 2592 # and Netmate II, and the Belkin F5U111.
 2593 device          cue
 2594 #
 2595 # Kawasaki LSI ethernet. Supports the LinkSys USB10T,
 2596 # Entrega USB-NET-E45, Peracom Ethernet Adapter, the
 2597 # 3Com 3c19250, the ADS Technologies USB-10BT, the ATen UC10T,
 2598 # the Netgear EA101, the D-Link DSB-650, the SMC 2102USB
 2599 # and 2104USB, and the Corega USB-T.
 2600 device          kue
 2601 #
 2602 # RealTek RTL8150 USB to fast ethernet. Supports the Melco LUA-KTX
 2603 # and the GREEN HOUSE GH-USB100B.
 2604 device          rue
 2605 #
 2606 # Davicom DM9601E USB to fast ethernet. Supports the Corega FEther USB-TXC.
 2607 device          udav
 2608 #
 2609 # HSxPA devices from Option N.V
 2610 device          uhso
 2611 
 2612 #
 2613 # Ralink Technology RT2501USB/RT2601USB wireless driver
 2614 device          rum
 2615 #
 2616 # Atheros AR5523 wireless driver
 2617 device          uath
 2618 #
 2619 # Ralink Technology RT2500USB wireless driver
 2620 device          ural
 2621 #
 2622 # ZyDas ZD1211/ZD1211B wireless driver
 2623 device          zyd
 2624 
 2625 # 
 2626 # debugging options for the USB subsystem
 2627 #
 2628 options         USB_DEBUG
 2629 options         U3G_DEBUG
 2630 
 2631 # options for ukbd:
 2632 options         UKBD_DFLT_KEYMAP        # specify the built-in keymap
 2633 makeoptions     UKBD_DFLT_KEYMAP=it.iso
 2634 
 2635 # options for uplcom:
 2636 options         UPLCOM_INTR_INTERVAL=100        # interrupt pipe interval
 2637                                                 # in milliseconds
 2638 
 2639 # options for uvscom:
 2640 options         UVSCOM_DEFAULT_OPKTSIZE=8       # default output packet size
 2641 options         UVSCOM_INTR_INTERVAL=100        # interrupt pipe interval
 2642                                                 # in milliseconds
 2643 
 2644 #####################################################################
 2645 # FireWire support
 2646 
 2647 device          firewire        # FireWire bus code
 2648 device          sbp             # SCSI over Firewire (Requires scbus and da)
 2649 device          sbp_targ        # SBP-2 Target mode  (Requires scbus and targ)
 2650 device          fwe             # Ethernet over FireWire (non-standard!)
 2651 device          fwip            # IP over FireWire (RFC2734 and RFC3146)
 2652 
 2653 #####################################################################
 2654 # dcons support (Dumb Console Device)
 2655 
 2656 device          dcons                   # dumb console driver
 2657 device          dcons_crom              # FireWire attachment
 2658 options         DCONS_BUF_SIZE=16384    # buffer size
 2659 options         DCONS_POLL_HZ=100       # polling rate
 2660 options         DCONS_FORCE_CONSOLE=0   # force to be the primary console
 2661 options         DCONS_FORCE_GDB=1       # force to be the gdb device
 2662 
 2663 #####################################################################
 2664 # crypto subsystem
 2665 #
 2666 # This is a port of the OpenBSD crypto framework.  Include this when
 2667 # configuring IPSEC and when you have a h/w crypto device to accelerate
 2668 # user applications that link to OpenSSL.
 2669 #
 2670 # Drivers are ports from OpenBSD with some simple enhancements that have
 2671 # been fed back to OpenBSD.
 2672 
 2673 device          crypto          # core crypto support
 2674 device          cryptodev       # /dev/crypto for access to h/w
 2675 
 2676 device          rndtest         # FIPS 140-2 entropy tester
 2677 
 2678 device          hifn            # Hifn 7951, 7781, etc.
 2679 options         HIFN_DEBUG      # enable debugging support: hw.hifn.debug
 2680 options         HIFN_RNDTEST    # enable rndtest support
 2681 
 2682 device          ubsec           # Broadcom 5501, 5601, 58xx
 2683 options         UBSEC_DEBUG     # enable debugging support: hw.ubsec.debug
 2684 options         UBSEC_RNDTEST   # enable rndtest support
 2685 
 2686 #####################################################################
 2687 
 2688 
 2689 #
 2690 # Embedded system options:
 2691 #
 2692 # An embedded system might want to run something other than init.
 2693 options         INIT_PATH=/sbin/init:/stand/sysinstall
 2694 
 2695 # Debug options
 2696 options         BUS_DEBUG       # enable newbus debugging
 2697 options         DEBUG_VFS_LOCKS # enable VFS lock debugging
 2698 options         SOCKBUF_DEBUG   # enable sockbuf last record/mb tail checking
 2699 
 2700 #
 2701 # Verbose SYSINIT
 2702 #
 2703 # Make the SYSINIT process performed by mi_startup() verbose.  This is very
 2704 # useful when porting to a new architecture.  If DDB is also enabled, this
 2705 # will print function names instead of addresses.
 2706 options         VERBOSE_SYSINIT
 2707 
 2708 #####################################################################
 2709 # SYSV IPC KERNEL PARAMETERS
 2710 #
 2711 # Maximum number of entries in a semaphore map.
 2712 options         SEMMAP=31
 2713 
 2714 # Maximum number of System V semaphores that can be used on the system at
 2715 # one time.
 2716 options         SEMMNI=11
 2717 
 2718 # Total number of semaphores system wide
 2719 options         SEMMNS=61
 2720 
 2721 # Total number of undo structures in system
 2722 options         SEMMNU=31
 2723 
 2724 # Maximum number of System V semaphores that can be used by a single process
 2725 # at one time.
 2726 options         SEMMSL=61
 2727 
 2728 # Maximum number of operations that can be outstanding on a single System V
 2729 # semaphore at one time.
 2730 options         SEMOPM=101
 2731 
 2732 # Maximum number of undo operations that can be outstanding on a single
 2733 # System V semaphore at one time.
 2734 options         SEMUME=11
 2735 
 2736 # Maximum number of shared memory pages system wide.
 2737 options         SHMALL=1025
 2738 
 2739 # Maximum size, in bytes, of a single System V shared memory region.
 2740 options         SHMMAX=(SHMMAXPGS*PAGE_SIZE+1)
 2741 options         SHMMAXPGS=1025
 2742 
 2743 # Minimum size, in bytes, of a single System V shared memory region.
 2744 options         SHMMIN=2
 2745 
 2746 # Maximum number of shared memory regions that can be used on the system
 2747 # at one time.
 2748 options         SHMMNI=33
 2749 
 2750 # Maximum number of System V shared memory regions that can be attached to
 2751 # a single process at one time.
 2752 options         SHMSEG=9
 2753 
 2754 # Set the amount of time (in seconds) the system will wait before
 2755 # rebooting automatically when a kernel panic occurs.  If set to (-1),
 2756 # the system will wait indefinitely until a key is pressed on the
 2757 # console.
 2758 options         PANIC_REBOOT_WAIT_TIME=16
 2759 
 2760 # Attempt to bypass the buffer cache and put data directly into the
 2761 # userland buffer for read operation when O_DIRECT flag is set on the
 2762 # file.  Both offset and length of the read operation must be
 2763 # multiples of the physical media sector size.
 2764 #
 2765 options         DIRECTIO
 2766 
 2767 # Specify a lower limit for the number of swap I/O buffers.  They are
 2768 # (among other things) used when bypassing the buffer cache due to
 2769 # DIRECTIO kernel option enabled and O_DIRECT flag set on file.
 2770 #
 2771 options         NSWBUF_MIN=120
 2772 
 2773 #####################################################################
 2774 
 2775 # More undocumented options for linting.
 2776 # Note that documenting these are not considered an affront.
 2777 
 2778 options         CAM_DEBUG_DELAY
 2779 
 2780 # VFS cluster debugging.
 2781 options         CLUSTERDEBUG
 2782 
 2783 options         DEBUG
 2784 
 2785 # Kernel filelock debugging.
 2786 options         LOCKF_DEBUG
 2787 
 2788 # System V compatible message queues
 2789 # Please note that the values provided here are used to test kernel
 2790 # building.  The defaults in the sources provide almost the same numbers.
 2791 # MSGSSZ must be a power of 2 between 8 and 1024.
 2792 options         MSGMNB=2049     # Max number of chars in queue
 2793 options         MSGMNI=41       # Max number of message queue identifiers
 2794 options         MSGSEG=2049     # Max number of message segments
 2795 options         MSGSSZ=16       # Size of a message segment
 2796 options         MSGTQL=41       # Max number of messages in system
 2797 
 2798 options         NBUF=512        # Number of buffer headers
 2799 
 2800 options         SCSI_NCR_DEBUG
 2801 options         SCSI_NCR_MAX_SYNC=10000
 2802 options         SCSI_NCR_MAX_WIDE=1
 2803 options         SCSI_NCR_MYADDR=7
 2804 
 2805 options         SC_DEBUG_LEVEL=5        # Syscons debug level
 2806 options         SC_RENDER_DEBUG # syscons rendering debugging
 2807 
 2808 options         SHOW_BUSYBUFS   # List buffers that prevent root unmount
 2809 options         VFS_BIO_DEBUG   # VFS buffer I/O debugging
 2810 
 2811 options         KSTACK_MAX_PAGES=32 # Maximum pages to give the kernel stack
 2812 
 2813 # Adaptec Array Controller driver options
 2814 options         AAC_DEBUG       # Debugging levels:
 2815                                 # 0 - quiet, only emit warnings
 2816                                 # 1 - noisy, emit major function
 2817                                 #     points and things done
 2818                                 # 2 - extremely noisy, emit trace
 2819                                 #     items in loops, etc.
 2820 
 2821 # Yet more undocumented options for linting.
 2822 # BKTR_ALLOC_PAGES has no effect except to cause warnings, and
 2823 # BROOKTREE_ALLOC_PAGES hasn't actually been superseded by it, since the
 2824 # driver still mostly spells this option BROOKTREE_ALLOC_PAGES.
 2825 ##options       BKTR_ALLOC_PAGES=(217*4+1)
 2826 options         BROOKTREE_ALLOC_PAGES=(217*4+1)
 2827 options         MAXFILES=999
 2828 

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