The Design and Implementation of the FreeBSD Operating System, Second Edition
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    1 # $FreeBSD: stable/8/sys/conf/NOTES 242200 2012-10-27 23:34:18Z davide $
    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_LDM           # Logical Disk Manager
  154 options         GEOM_PART_MBR           # MBR partitioning
  155 options         GEOM_PART_PC98          # PC-9800 disk partitioning
  156 options         GEOM_PART_VTOC8         # SMI VTOC8 disk label
  157 options         GEOM_PC98               # NEC PC9800 partitioning
  158 options         GEOM_RAID               # Soft RAID functionality.
  159 options         GEOM_RAID3              # RAID3 functionality.
  160 options         GEOM_SHSEC              # Shared secret.
  161 options         GEOM_STRIPE             # Disk striping.
  162 options         GEOM_SUNLABEL           # Sun/Solaris partitioning
  163 options         GEOM_UZIP               # Read-only compressed disks
  164 options         GEOM_VIRSTOR            # Virtual storage.
  165 options         GEOM_VOL                # Volume names from UFS superblock
  166 options         GEOM_ZERO               # Performance testing helper.
  167 
  168 #
  169 # The root device and filesystem type can be compiled in;
  170 # this provides a fallback option if the root device cannot
  171 # be correctly guessed by the bootstrap code, or an override if
  172 # the RB_DFLTROOT flag (-r) is specified when booting the kernel.
  173 #
  174 options         ROOTDEVNAME=\"ufs:da0s2e\"
  175 
  176 
  177 #####################################################################
  178 # Scheduler options:
  179 #
  180 # Specifying one of SCHED_4BSD or SCHED_ULE is mandatory.  These options
  181 # select which scheduler is compiled in.
  182 #
  183 # SCHED_4BSD is the historical, proven, BSD scheduler.  It has a global run
  184 # queue and no CPU affinity which makes it suboptimal for SMP.  It has very
  185 # good interactivity and priority selection.
  186 #
  187 # SCHED_ULE provides significant performance advantages over 4BSD on many
  188 # workloads on SMP machines.  It supports cpu-affinity, per-cpu runqueues
  189 # and scheduler locks.  It also has a stronger notion of interactivity 
  190 # which leads to better responsiveness even on uniprocessor machines.  This
  191 # will eventually become the default scheduler.
  192 #
  193 # SCHED_STATS is a debugging option which keeps some stats in the sysctl
  194 # tree at 'kern.sched.stats' and is useful for debugging scheduling decisions.
  195 #
  196 options         SCHED_4BSD
  197 options         SCHED_STATS
  198 #options        SCHED_ULE
  199 
  200 #####################################################################
  201 # SMP OPTIONS:
  202 #
  203 # SMP enables building of a Symmetric MultiProcessor Kernel.
  204 
  205 # Mandatory:
  206 options         SMP                     # Symmetric MultiProcessor Kernel
  207 
  208 # ADAPTIVE_MUTEXES changes the behavior of blocking mutexes to spin
  209 # if the thread that currently owns the mutex is executing on another
  210 # CPU.  This behaviour is enabled by default, so this option can be used
  211 # to disable it.
  212 options         NO_ADAPTIVE_MUTEXES
  213 
  214 # ADAPTIVE_RWLOCKS changes the behavior of reader/writer locks to spin
  215 # if the thread that currently owns the rwlock is executing on another
  216 # CPU.  This behaviour is enabled by default, so this option can be used
  217 # to disable it.
  218 options         NO_ADAPTIVE_RWLOCKS
  219 
  220 # ADAPTIVE_SX changes the behavior of sx locks to spin if the thread that
  221 # currently owns the sx lock is executing on another CPU.
  222 # This behaviour is enabled by default, so this option can be used to
  223 # disable it.
  224 options         NO_ADAPTIVE_SX
  225 
  226 # MUTEX_NOINLINE forces mutex operations to call functions to perform each
  227 # operation rather than inlining the simple cases.  This can be used to
  228 # shrink the size of the kernel text segment.  Note that this behavior is
  229 # already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
  230 # and WITNESS options.
  231 options         MUTEX_NOINLINE
  232 
  233 # RWLOCK_NOINLINE forces rwlock operations to call functions to perform each
  234 # operation rather than inlining the simple cases.  This can be used to
  235 # shrink the size of the kernel text segment.  Note that this behavior is
  236 # already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
  237 # and WITNESS options.
  238 options         RWLOCK_NOINLINE
  239 
  240 # SX_NOINLINE forces sx lock operations to call functions to perform each
  241 # operation rather than inlining the simple cases.  This can be used to
  242 # shrink the size of the kernel text segment.  Note that this behavior is
  243 # already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
  244 # and WITNESS options.
  245 options         SX_NOINLINE
  246 
  247 # SMP Debugging Options:
  248 #
  249 # PREEMPTION allows the threads that are in the kernel to be preempted by
  250 #         higher priority [interrupt] threads.  It helps with interactivity
  251 #         and allows interrupt threads to run sooner rather than waiting.
  252 #         WARNING! Only tested on amd64 and i386.
  253 # FULL_PREEMPTION instructs the kernel to preempt non-realtime kernel
  254 #         threads.  Its sole use is to expose race conditions and other
  255 #         bugs during development.  Enabling this option will reduce
  256 #         performance and increase the frequency of kernel panics by
  257 #         design.  If you aren't sure that you need it then you don't.
  258 #         Relies on the PREEMPTION option.  DON'T TURN THIS ON.
  259 # MUTEX_DEBUG enables various extra assertions in the mutex code.
  260 # SLEEPQUEUE_PROFILING enables rudimentary profiling of the hash table
  261 #         used to hold active sleep queues as well as sleep wait message
  262 #         frequency.
  263 # TURNSTILE_PROFILING enables rudimentary profiling of the hash table
  264 #         used to hold active lock queues.
  265 # UMTX_PROFILING enables rudimentary profiling of the hash table used 
  266           to hold active lock queues.
  267 # WITNESS enables the witness code which detects deadlocks and cycles
  268 #         during locking operations.
  269 # WITNESS_KDB causes the witness code to drop into the kernel debugger if
  270 #         a lock hierarchy violation occurs or if locks are held when going to
  271 #         sleep.
  272 # WITNESS_SKIPSPIN disables the witness checks on spin mutexes.
  273 options         PREEMPTION
  274 options         FULL_PREEMPTION
  275 options         MUTEX_DEBUG
  276 options         WITNESS
  277 options         WITNESS_KDB
  278 options         WITNESS_SKIPSPIN
  279 
  280 # LOCK_PROFILING - Profiling locks.  See LOCK_PROFILING(9) for details.
  281 options         LOCK_PROFILING
  282 # Set the number of buffers and the hash size.  The hash size MUST be larger
  283 # than the number of buffers.  Hash size should be prime.
  284 options         MPROF_BUFFERS="1536"
  285 options         MPROF_HASH_SIZE="1543"
  286 
  287 # Profiling for internal hash tables.
  288 options         SLEEPQUEUE_PROFILING
  289 options         TURNSTILE_PROFILING
  290 options         UMTX_PROFILING
  291 
  292 
  293 #####################################################################
  294 # COMPATIBILITY OPTIONS
  295 
  296 #
  297 # Implement system calls compatible with 4.3BSD and older versions of
  298 # FreeBSD.  You probably do NOT want to remove this as much current code
  299 # still relies on the 4.3 emulation.  Note that some architectures that
  300 # are supported by FreeBSD do not include support for certain important
  301 # aspects of this compatibility option, namely those related to the
  302 # signal delivery mechanism.
  303 #
  304 options         COMPAT_43
  305 
  306 # Old tty interface.
  307 options         COMPAT_43TTY
  308 
  309 # Note that as a general rule, COMPAT_FREEBSD<n> depends on
  310 # COMPAT_FREEBSD<n+1>, COMPAT_FREEBSD<n+2>, etc.
  311 
  312 # Enable FreeBSD4 compatibility syscalls
  313 options         COMPAT_FREEBSD4
  314 
  315 # Enable FreeBSD5 compatibility syscalls
  316 options         COMPAT_FREEBSD5
  317 
  318 # Enable FreeBSD6 compatibility syscalls
  319 options         COMPAT_FREEBSD6
  320 
  321 # Enable FreeBSD7 compatibility syscalls
  322 options         COMPAT_FREEBSD7
  323 
  324 #
  325 # These three options provide support for System V Interface
  326 # Definition-style interprocess communication, in the form of shared
  327 # memory, semaphores, and message queues, respectively.
  328 #
  329 options         SYSVSHM
  330 options         SYSVSEM
  331 options         SYSVMSG
  332 
  333 
  334 #####################################################################
  335 # DEBUGGING OPTIONS
  336 
  337 #
  338 # Compile with kernel debugger related code.
  339 #
  340 options         KDB
  341 
  342 #
  343 # Print a stack trace of the current thread on the console for a panic.
  344 #
  345 options         KDB_TRACE
  346 
  347 #
  348 # Don't enter the debugger for a panic. Intended for unattended operation
  349 # where you may want to enter the debugger from the console, but still want
  350 # the machine to recover from a panic.
  351 #
  352 options         KDB_UNATTENDED
  353 
  354 #
  355 # Enable the ddb debugger backend.
  356 #
  357 options         DDB
  358 
  359 #
  360 # Print the numerical value of symbols in addition to the symbolic
  361 # representation.
  362 #
  363 options         DDB_NUMSYM
  364 
  365 #
  366 # Enable the remote gdb debugger backend.
  367 #
  368 options         GDB
  369 
  370 #
  371 # SYSCTL_DEBUG enables a 'sysctl' debug tree that can be used to dump the
  372 # contents of the registered sysctl nodes on the console.  It is disabled by
  373 # default because it generates excessively verbose console output that can
  374 # interfere with serial console operation.
  375 #
  376 options         SYSCTL_DEBUG
  377 
  378 #
  379 # NO_SYSCTL_DESCR omits the sysctl node descriptions to save space in the
  380 # resulting kernel.
  381 options         NO_SYSCTL_DESCR
  382 
  383 #
  384 # DEBUG_MEMGUARD builds and enables memguard(9), a replacement allocator
  385 # for the kernel used to detect modify-after-free scenarios.  See the
  386 # memguard(9) man page for more information on usage.
  387 #
  388 options         DEBUG_MEMGUARD
  389 
  390 #
  391 # DEBUG_REDZONE enables buffer underflows and buffer overflows detection for
  392 # malloc(9).
  393 #
  394 options         DEBUG_REDZONE
  395 
  396 #
  397 # KTRACE enables the system-call tracing facility ktrace(2).  To be more
  398 # SMP-friendly, KTRACE uses a worker thread to process most trace events
  399 # asynchronously to the thread generating the event.  This requires a
  400 # pre-allocated store of objects representing trace events.  The
  401 # KTRACE_REQUEST_POOL option specifies the initial size of this store.
  402 # The size of the pool can be adjusted both at boottime and runtime via
  403 # the kern.ktrace_request_pool tunable and sysctl.
  404 #
  405 options         KTRACE                  #kernel tracing
  406 options         KTRACE_REQUEST_POOL=101
  407 
  408 #
  409 # KTR is a kernel tracing mechanism imported from BSD/OS.  Currently
  410 # it has no userland interface aside from a few sysctl's.  It is
  411 # enabled with the KTR option.  KTR_ENTRIES defines the number of
  412 # entries in the circular trace buffer; it may be an arbitrary number.
  413 # KTR_COMPILE defines the mask of events to compile into the kernel as
  414 # defined by the KTR_* constants in <sys/ktr.h>.  KTR_MASK defines the
  415 # initial value of the ktr_mask variable which determines at runtime
  416 # what events to trace.  KTR_CPUMASK determines which CPU's log
  417 # events, with bit X corresponding to CPU X.  KTR_VERBOSE enables
  418 # dumping of KTR events to the console by default.  This functionality
  419 # can be toggled via the debug.ktr_verbose sysctl and defaults to off
  420 # if KTR_VERBOSE is not defined.
  421 #
  422 options         KTR
  423 options         KTR_ENTRIES=1024
  424 options         KTR_COMPILE=(KTR_INTR|KTR_PROC)
  425 options         KTR_MASK=KTR_INTR
  426 options         KTR_CPUMASK=0x3
  427 options         KTR_VERBOSE
  428 
  429 #
  430 # ALQ(9) is a facility for the asynchronous queuing of records from the kernel
  431 # to a vnode, and is employed by services such as KTR(4) to produce trace
  432 # files based on a kernel event stream.  Records are written asynchronously
  433 # in a worker thread.
  434 #
  435 options         ALQ
  436 options         KTR_ALQ
  437 
  438 #
  439 # The INVARIANTS option is used in a number of source files to enable
  440 # extra sanity checking of internal structures.  This support is not
  441 # enabled by default because of the extra time it would take to check
  442 # for these conditions, which can only occur as a result of
  443 # programming errors.
  444 #
  445 options         INVARIANTS
  446 
  447 #
  448 # The INVARIANT_SUPPORT option makes us compile in support for
  449 # verifying some of the internal structures.  It is a prerequisite for
  450 # 'INVARIANTS', as enabling 'INVARIANTS' will make these functions be
  451 # called.  The intent is that you can set 'INVARIANTS' for single
  452 # source files (by changing the source file or specifying it on the
  453 # command line) if you have 'INVARIANT_SUPPORT' enabled.  Also, if you
  454 # wish to build a kernel module with 'INVARIANTS', then adding
  455 # 'INVARIANT_SUPPORT' to your kernel will provide all the necessary
  456 # infrastructure without the added overhead.
  457 #
  458 options         INVARIANT_SUPPORT
  459 
  460 #
  461 # The DIAGNOSTIC option is used to enable extra debugging information
  462 # from some parts of the kernel.  As this makes everything more noisy,
  463 # it is disabled by default.
  464 #
  465 options         DIAGNOSTIC
  466 
  467 #
  468 # REGRESSION causes optional kernel interfaces necessary only for regression
  469 # testing to be enabled.  These interfaces may constitute security risks
  470 # when enabled, as they permit processes to easily modify aspects of the
  471 # run-time environment to reproduce unlikely or unusual (possibly normally
  472 # impossible) scenarios.
  473 #
  474 options         REGRESSION
  475 
  476 #
  477 # RESTARTABLE_PANICS allows one to continue from a panic as if it were
  478 # a call to the debugger to continue from a panic as instead.  It is only
  479 # useful if a kernel debugger is present.  To restart from a panic, reset
  480 # the panicstr variable to NULL and continue execution.  This option is
  481 # for development use only and should NOT be used in production systems
  482 # to "workaround" a panic.
  483 #
  484 #options        RESTARTABLE_PANICS
  485 
  486 #
  487 # This option let some drivers co-exist that can't co-exist in a running
  488 # system.  This is used to be able to compile all kernel code in one go for
  489 # quality assurance purposes (like this file, which the option takes it name
  490 # from.)
  491 #
  492 options         COMPILING_LINT
  493 
  494 #
  495 # STACK enables the stack(9) facility, allowing the capture of kernel stack
  496 # for the purpose of procinfo(1), etc.  stack(9) will also be compiled in
  497 # automatically if DDB(4) is compiled into the kernel.
  498 #
  499 options         STACK
  500 
  501 
  502 #####################################################################
  503 # PERFORMANCE MONITORING OPTIONS
  504 
  505 #
  506 # The hwpmc driver that allows the use of in-CPU performance monitoring
  507 # counters for performance monitoring.  The base kernel needs to configured
  508 # with the 'options' line, while the hwpmc device can be either compiled
  509 # in or loaded as a loadable kernel module.
  510 #
  511 # Additional configuration options may be required on specific architectures,
  512 # please see hwpmc(4).
  513 
  514 device          hwpmc                   # Driver (also a loadable module)
  515 options         HWPMC_HOOKS             # Other necessary kernel hooks
  516 
  517 
  518 #####################################################################
  519 # NETWORKING OPTIONS
  520 
  521 #
  522 # Protocol families
  523 #
  524 options         INET                    #Internet communications protocols
  525 options         INET6                   #IPv6 communications protocols
  526 
  527 options         ROUTETABLES=2           # max 16. 1 is back compatible.
  528 
  529 # In order to enable IPSEC you MUST also add device crypto to 
  530 # your kernel configuration
  531 options         IPSEC                   #IP security (requires device crypto)
  532 #options        IPSEC_DEBUG             #debug for IP security
  533 #
  534 # #DEPRECATED#
  535 # Set IPSEC_FILTERTUNNEL to change the default of the sysctl to force packets
  536 # coming through a tunnel to be processed by any configured packet filtering
  537 # twice. The default is that packets coming out of a tunnel are _not_ processed;
  538 # they are assumed trusted.
  539 #
  540 # IPSEC history is preserved for such packets, and can be filtered
  541 # using ipfw(8)'s 'ipsec' keyword, when this option is enabled.
  542 #
  543 #options        IPSEC_FILTERTUNNEL      #filter ipsec packets from a tunnel
  544 #
  545 # Set IPSEC_NAT_T to enable NAT-Traversal support.  This enables
  546 # optional UDP encapsulation of ESP packets.
  547 #
  548 options         IPSEC_NAT_T             #NAT-T support, UDP encap of ESP
  549 
  550 options         IPX                     #IPX/SPX communications protocols
  551 
  552 options         NCP                     #NetWare Core protocol
  553 
  554 options         NETATALK                #Appletalk communications protocols
  555 options         NETATALKDEBUG           #Appletalk debugging
  556 
  557 #
  558 # SMB/CIFS requester
  559 # NETSMB enables support for SMB protocol, it requires LIBMCHAIN and LIBICONV
  560 # options.
  561 options         NETSMB                  #SMB/CIFS requester
  562 
  563 # mchain library. It can be either loaded as KLD or compiled into kernel
  564 options         LIBMCHAIN
  565 
  566 # libalias library, performing NAT
  567 options         LIBALIAS
  568 
  569 # flowtable cache
  570 options         FLOWTABLE
  571 
  572 #
  573 # SCTP is a NEW transport protocol defined by
  574 # RFC2960 updated by RFC3309 and RFC3758.. and
  575 # soon to have a new base RFC and many many more
  576 # extensions. This release supports all the extensions
  577 # including many drafts (most about to become RFC's).
  578 # It is the premeier SCTP implementation in the NET
  579 # and is quite well tested.
  580 #
  581 # Note YOU MUST have both INET and INET6 defined.
  582 # you don't have to enable V6, but SCTP is 
  583 # dual stacked and so far we have not teased apart
  584 # the V6 and V4.. since an association can span
  585 # both a V6 and V4 address at the SAME time :-)
  586 #
  587 options         SCTP
  588 # There are bunches of options:
  589 # this one turns on all sorts of
  590 # nastly printing that you can
  591 # do. Its all controled by a
  592 # bit mask (settable by socket opt and
  593 # by sysctl). Including will not cause
  594 # logging until you set the bits.. but it
  595 # can be quite verbose.. so without this
  596 # option we don't do any of the tests for
  597 # bits and prints.. which makes the code run
  598 # faster.. if you are not debugging don't use.
  599 options         SCTP_DEBUG
  600 #
  601 # This option turns off the CRC32c checksum. Basically
  602 # You will not be able to talk to anyone else that
  603 # has not done this. Its more for expermentation to
  604 # see how much CPU the CRC32c really takes. Most new
  605 # cards for TCP support checksum offload.. so this 
  606 # option gives you a "view" into what SCTP would be
  607 # like with such an offload (which only exists in
  608 # high in iSCSI boards so far). With the new
  609 # splitting 8's algorithm its not as bad as it used
  610 # to be.. but it does speed things up try only
  611 # for in a captured lab environment :-)
  612 options         SCTP_WITH_NO_CSUM
  613 #
  614 
  615 #
  616 # All that options after that turn on specific types of
  617 # logging. You can monitor CWND growth, flight size
  618 # and all sorts of things. Go look at the code and
  619 # see. I have used this to produce interesting 
  620 # charts and graphs as well :->
  621 # 
  622 # I have not yet commited the tools to get and print
  623 # the logs, I will do that eventually .. before then
  624 # if you want them send me an email rrs@freebsd.org
  625 # You basically must have KTR enabled for these
  626 # and you then set the sysctl to turn on/off various
  627 # logging bits. Use ktrdump to pull the log and run
  628 # it through a dispaly program.. and graphs and other
  629 # things too.
  630 #
  631 options         SCTP_LOCK_LOGGING
  632 options         SCTP_MBUF_LOGGING
  633 options         SCTP_MBCNT_LOGGING
  634 options         SCTP_PACKET_LOGGING
  635 options         SCTP_LTRACE_CHUNKS
  636 options         SCTP_LTRACE_ERRORS
  637 
  638 
  639 # altq(9). Enable the base part of the hooks with the ALTQ option.
  640 # Individual disciplines must be built into the base system and can not be
  641 # loaded as modules at this point. ALTQ requires a stable TSC so if yours is
  642 # broken or changes with CPU throttling then you must also have the ALTQ_NOPCC
  643 # option.
  644 options         ALTQ
  645 options         ALTQ_CBQ        # Class Based Queueing
  646 options         ALTQ_RED        # Random Early Detection
  647 options         ALTQ_RIO        # RED In/Out
  648 options         ALTQ_HFSC       # Hierarchical Packet Scheduler
  649 options         ALTQ_CDNR       # Traffic conditioner
  650 options         ALTQ_PRIQ       # Priority Queueing
  651 options         ALTQ_NOPCC      # Required if the TSC is unusable
  652 options         ALTQ_DEBUG
  653 
  654 # netgraph(4). Enable the base netgraph code with the NETGRAPH option.
  655 # Individual node types can be enabled with the corresponding option
  656 # listed below; however, this is not strictly necessary as netgraph
  657 # will automatically load the corresponding KLD module if the node type
  658 # is not already compiled into the kernel. Each type below has a
  659 # corresponding man page, e.g., ng_async(8).
  660 options         NETGRAPH                # netgraph(4) system
  661 options         NETGRAPH_DEBUG          # enable extra debugging, this
  662                                         # affects netgraph(4) and nodes
  663 # Node types
  664 options         NETGRAPH_ASYNC
  665 options         NETGRAPH_ATMLLC
  666 options         NETGRAPH_ATM_ATMPIF
  667 options         NETGRAPH_BLUETOOTH              # ng_bluetooth(4)
  668 options         NETGRAPH_BLUETOOTH_BT3C         # ng_bt3c(4)
  669 options         NETGRAPH_BLUETOOTH_HCI          # ng_hci(4)
  670 options         NETGRAPH_BLUETOOTH_L2CAP        # ng_l2cap(4)
  671 options         NETGRAPH_BLUETOOTH_SOCKET       # ng_btsocket(4)
  672 options         NETGRAPH_BLUETOOTH_UBT          # ng_ubt(4)
  673 options         NETGRAPH_BLUETOOTH_UBTBCMFW     # ubtbcmfw(4)
  674 options         NETGRAPH_BPF
  675 options         NETGRAPH_BRIDGE
  676 options         NETGRAPH_CAR
  677 options         NETGRAPH_CISCO
  678 options         NETGRAPH_DEFLATE
  679 options         NETGRAPH_DEVICE
  680 options         NETGRAPH_ECHO
  681 options         NETGRAPH_EIFACE
  682 options         NETGRAPH_ETHER
  683 options         NETGRAPH_FEC
  684 options         NETGRAPH_FRAME_RELAY
  685 options         NETGRAPH_GIF
  686 options         NETGRAPH_GIF_DEMUX
  687 options         NETGRAPH_HOLE
  688 options         NETGRAPH_IFACE
  689 options         NETGRAPH_IP_INPUT
  690 options         NETGRAPH_IPFW
  691 options         NETGRAPH_KSOCKET
  692 options         NETGRAPH_L2TP
  693 options         NETGRAPH_LMI
  694 # MPPC compression requires proprietary files (not included)
  695 #options        NETGRAPH_MPPC_COMPRESSION
  696 options         NETGRAPH_MPPC_ENCRYPTION
  697 options         NETGRAPH_NETFLOW
  698 options         NETGRAPH_NAT
  699 options         NETGRAPH_ONE2MANY
  700 options         NETGRAPH_PATCH
  701 options         NETGRAPH_PIPE
  702 options         NETGRAPH_PPP
  703 options         NETGRAPH_PPPOE
  704 options         NETGRAPH_PPTPGRE
  705 options         NETGRAPH_PRED1
  706 options         NETGRAPH_RFC1490
  707 options         NETGRAPH_SOCKET
  708 options         NETGRAPH_SPLIT
  709 options         NETGRAPH_SPPP
  710 options         NETGRAPH_TAG
  711 options         NETGRAPH_TCPMSS
  712 options         NETGRAPH_TEE
  713 options         NETGRAPH_UI
  714 options         NETGRAPH_VJC
  715 
  716 # NgATM - Netgraph ATM
  717 options         NGATM_ATM
  718 options         NGATM_ATMBASE
  719 options         NGATM_SSCOP
  720 options         NGATM_SSCFU
  721 options         NGATM_UNI
  722 options         NGATM_CCATM
  723 
  724 device          mn      # Munich32x/Falc54 Nx64kbit/sec cards.
  725 
  726 #
  727 # Network interfaces:
  728 #  The `loop' device is MANDATORY when networking is enabled.
  729 device          loop
  730 
  731 #  The `ether' device provides generic code to handle
  732 #  Ethernets; it is MANDATORY when an Ethernet device driver is
  733 #  configured or token-ring is enabled.
  734 device          ether
  735 
  736 #  The `vlan' device implements the VLAN tagging of Ethernet frames
  737 #  according to IEEE 802.1Q.
  738 device          vlan
  739 
  740 #  The `wlan' device provides generic code to support 802.11
  741 #  drivers, including host AP mode; it is MANDATORY for the wi,
  742 #  and ath drivers and will eventually be required by all 802.11 drivers.
  743 device          wlan
  744 options         IEEE80211_DEBUG         #enable debugging msgs
  745 options         IEEE80211_AMPDU_AGE     #age frames in AMPDU reorder q's
  746 options         IEEE80211_SUPPORT_MESH  #enable 802.11s D3.0 support
  747 options         IEEE80211_SUPPORT_TDMA  #enable TDMA support
  748 
  749 #  The `wlan_wep', `wlan_tkip', and `wlan_ccmp' devices provide
  750 #  support for WEP, TKIP, and AES-CCMP crypto protocols optionally
  751 #  used with 802.11 devices that depend on the `wlan' module.
  752 device          wlan_wep
  753 device          wlan_ccmp
  754 device          wlan_tkip
  755 
  756 #  The `wlan_xauth' device provides support for external (i.e. user-mode)
  757 #  authenticators for use with 802.11 drivers that use the `wlan'
  758 #  module and support 802.1x and/or WPA security protocols.
  759 device          wlan_xauth
  760 
  761 #  The `wlan_acl' device provides a MAC-based access control mechanism
  762 #  for use with 802.11 drivers operating in ap mode and using the
  763 #  `wlan' module.
  764 #  The 'wlan_amrr' device provides AMRR transmit rate control algorithm
  765 device          wlan_acl
  766 device          wlan_amrr
  767 
  768 # Generic TokenRing
  769 device          token
  770 
  771 #  The `fddi' device provides generic code to support FDDI.
  772 device          fddi
  773 
  774 #  The `arcnet' device provides generic code to support Arcnet.
  775 device          arcnet
  776 
  777 #  The `sppp' device serves a similar role for certain types
  778 #  of synchronous PPP links (like `cx', `ar').
  779 device          sppp
  780 
  781 #  The `bpf' device enables the Berkeley Packet Filter.  Be
  782 #  aware of the legal and administrative consequences of enabling this
  783 #  option.  The number of devices determines the maximum number of
  784 #  simultaneous BPF clients programs runnable.  DHCP requires bpf.
  785 device          bpf
  786 
  787 #  The `netmap' device implements memory-mapped access to network
  788 #  devices from userspace, enabling wire-speed packet capture and
  789 #  generation even at 10Gbit/s. Requires support in the device
  790 #  driver. Supported drivers are ixgbe, e1000, re.
  791 device          netmap
  792 
  793 #  The `disc' device implements a minimal network interface,
  794 #  which throws away all packets sent and never receives any.  It is
  795 #  included for testing and benchmarking purposes.
  796 device          disc
  797 
  798 # The `epair' device implements a virtual back-to-back connected Ethernet
  799 # like interface pair.
  800 device          epair
  801 
  802 #  The `edsc' device implements a minimal Ethernet interface,
  803 #  which discards all packets sent and receives none.
  804 device          edsc
  805 
  806 #  The `tap' device is a pty-like virtual Ethernet interface
  807 device          tap
  808 
  809 #  The `tun' device implements (user-)ppp and nos-tun(8)
  810 device          tun
  811 
  812 #  The `gif' device implements IPv6 over IP4 tunneling,
  813 #  IPv4 over IPv6 tunneling, IPv4 over IPv4 tunneling and
  814 #  IPv6 over IPv6 tunneling.
  815 #  The `gre' device implements two types of IP4 over IP4 tunneling:
  816 #  GRE and MOBILE, as specified in the RFC1701 and RFC2004.
  817 #  The XBONEHACK option allows the same pair of addresses to be configured on
  818 #  multiple gif interfaces.
  819 device          gif
  820 device          gre
  821 options         XBONEHACK
  822 
  823 #  The `faith' device captures packets sent to it and diverts them
  824 #  to the IPv4/IPv6 translation daemon.
  825 #  The `stf' device implements 6to4 encapsulation.
  826 device          faith
  827 device          stf
  828 
  829 #  The `ef' device provides support for multiple ethernet frame types
  830 #  specified via ETHER_* options. See ef(4) for details.
  831 device          ef
  832 options         ETHER_II                # enable Ethernet_II frame
  833 options         ETHER_8023              # enable Ethernet_802.3 (Novell) frame
  834 options         ETHER_8022              # enable Ethernet_802.2 frame
  835 options         ETHER_SNAP              # enable Ethernet_802.2/SNAP frame
  836 
  837 # The pf packet filter consists of three devices:
  838 #  The `pf' device provides /dev/pf and the firewall code itself.
  839 #  The `pflog' device provides the pflog0 interface which logs packets.
  840 #  The `pfsync' device provides the pfsync0 interface used for
  841 #   synchronization of firewall state tables (over the net).
  842 device          pf
  843 device          pflog
  844 device          pfsync
  845 
  846 # Bridge interface.
  847 device          if_bridge
  848 
  849 # Common Address Redundancy Protocol. See carp(4) for more details.
  850 device          carp
  851 
  852 # IPsec interface.
  853 device          enc
  854 
  855 # Link aggregation interface.
  856 device          lagg
  857 
  858 #
  859 # Internet family options:
  860 #
  861 # MROUTING enables the kernel multicast packet forwarder, which works
  862 # with mrouted and XORP.
  863 #
  864 # IPFIREWALL enables support for IP firewall construction, in
  865 # conjunction with the `ipfw' program.  IPFIREWALL_VERBOSE sends
  866 # logged packets to the system logger.  IPFIREWALL_VERBOSE_LIMIT
  867 # limits the number of times a matching entry can be logged.
  868 #
  869 # WARNING:  IPFIREWALL defaults to a policy of "deny ip from any to any"
  870 # and if you do not add other rules during startup to allow access,
  871 # YOU WILL LOCK YOURSELF OUT.  It is suggested that you set firewall_type=open
  872 # in /etc/rc.conf when first enabling this feature, then refining the
  873 # firewall rules in /etc/rc.firewall after you've tested that the new kernel
  874 # feature works properly.
  875 #
  876 # IPFIREWALL_DEFAULT_TO_ACCEPT causes the default rule (at boot) to
  877 # allow everything.  Use with care, if a cracker can crash your
  878 # firewall machine, they can get to your protected machines.  However,
  879 # if you are using it as an as-needed filter for specific problems as
  880 # they arise, then this may be for you.  Changing the default to 'allow'
  881 # means that you won't get stuck if the kernel and /sbin/ipfw binary get
  882 # out of sync.
  883 #
  884 # IPDIVERT enables the divert IP sockets, used by ``ipfw divert''.  It
  885 # depends on IPFIREWALL if compiled into the kernel.
  886 #
  887 # IPFIREWALL_FORWARD enables changing of the packet destination either
  888 # to do some sort of policy routing or transparent proxying.  Used by
  889 # ``ipfw forward''. All  redirections apply to locally generated
  890 # packets too.  Because of this great care is required when
  891 # crafting the ruleset.
  892 #
  893 # IPFIREWALL_NAT adds support for in kernel nat in ipfw, and it requires
  894 # LIBALIAS.
  895 #
  896 # IPSTEALTH enables code to support stealth forwarding (i.e., forwarding
  897 # packets without touching the TTL).  This can be useful to hide firewalls
  898 # from traceroute and similar tools.
  899 #
  900 # TCPDEBUG enables code which keeps traces of the TCP state machine
  901 # for sockets with the SO_DEBUG option set, which can then be examined
  902 # using the trpt(8) utility.
  903 #
  904 options         MROUTING                # Multicast routing
  905 options         IPFIREWALL              #firewall
  906 options         IPFIREWALL_VERBOSE      #enable logging to syslogd(8)
  907 options         IPFIREWALL_VERBOSE_LIMIT=100    #limit verbosity
  908 options         IPFIREWALL_DEFAULT_TO_ACCEPT    #allow everything by default
  909 options         IPFIREWALL_FORWARD      #packet destination changes
  910 options         IPFIREWALL_NAT          #ipfw kernel nat support
  911 options         IPDIVERT                #divert sockets
  912 options         IPFILTER                #ipfilter support
  913 options         IPFILTER_LOG            #ipfilter logging
  914 options         IPFILTER_LOOKUP         #ipfilter pools
  915 options         IPFILTER_DEFAULT_BLOCK  #block all packets by default
  916 options         IPSTEALTH               #support for stealth forwarding
  917 options         TCPDEBUG
  918 
  919 # The MBUF_STRESS_TEST option enables options which create
  920 # various random failures / extreme cases related to mbuf
  921 # functions.  See mbuf(9) for a list of available test cases.
  922 # MBUF_PROFILING enables code to profile the mbuf chains
  923 # exiting the system (via participating interfaces) and
  924 # return a logarithmic histogram of monitored parameters
  925 # (e.g. packet size, wasted space, number of mbufs in chain).
  926 options         MBUF_STRESS_TEST
  927 options         MBUF_PROFILING
  928 
  929 # Statically Link in accept filters
  930 options         ACCEPT_FILTER_DATA
  931 options         ACCEPT_FILTER_DNS
  932 options         ACCEPT_FILTER_HTTP
  933 
  934 # TCP_SIGNATURE adds support for RFC 2385 (TCP-MD5) digests. These are
  935 # carried in TCP option 19. This option is commonly used to protect
  936 # TCP sessions (e.g. BGP) where IPSEC is not available nor desirable.
  937 # This is enabled on a per-socket basis using the TCP_MD5SIG socket option.
  938 # This requires the use of 'device crypto', 'options IPSEC'
  939 # or 'device cryptodev'.
  940 options         TCP_SIGNATURE           #include support for RFC 2385
  941 
  942 # DUMMYNET enables the "dummynet" bandwidth limiter.  You need IPFIREWALL
  943 # as well.  See dummynet(4) and ipfw(8) for more info.  When you run
  944 # DUMMYNET it is advisable to also have at least "options HZ=1000" to achieve
  945 # a smooth scheduling of the traffic.
  946 options         DUMMYNET
  947 
  948 # Zero copy sockets support.  This enables "zero copy" for sending and
  949 # receiving data via a socket.  The send side works for any type of NIC,
  950 # the receive side only works for NICs that support MTUs greater than the
  951 # page size of your architecture and that support header splitting.  See
  952 # zero_copy(9) for more details.
  953 options         ZERO_COPY_SOCKETS
  954 
  955 
  956 #####################################################################
  957 # FILESYSTEM OPTIONS
  958 
  959 #
  960 # Only the root filesystem needs to be statically compiled or preloaded
  961 # as module; everything else will be automatically loaded at mount
  962 # time.  Some people still prefer to statically compile other
  963 # filesystems as well.
  964 #
  965 # NB: The PORTAL filesystem is known to be buggy, and WILL panic your
  966 # system if you attempt to do anything with it.  It is included here
  967 # as an incentive for some enterprising soul to sit down and fix it.
  968 # The UNION filesystem was known to be buggy in the past.  It is now
  969 # being actively maintained, although there are still some issues being
  970 # resolved.
  971 #
  972 
  973 # One of these is mandatory:
  974 options         FFS                     #Fast filesystem
  975 options         NFSCLIENT               #Network File System client
  976 
  977 # The rest are optional:
  978 options         CD9660                  #ISO 9660 filesystem
  979 options         FDESCFS                 #File descriptor filesystem
  980 options         HPFS                    #OS/2 File system
  981 options         MSDOSFS                 #MS DOS File System (FAT, FAT32)
  982 options         NFSSERVER               #Network File System server
  983 options         NFSLOCKD                #Network Lock Manager
  984 options         NFSCL                   #experimental NFS client with NFSv4
  985 options         NFSD                    #experimental NFS server with NFSv4
  986 options         KGSSAPI                 #Kernel GSSAPI implementaion
  987 
  988 # NT File System. Read-mostly, see mount_ntfs(8) for details.
  989 # For a full read-write NTFS support consider sysutils/fusefs-ntfs
  990 # port/package.
  991 options         NTFS
  992 
  993 options         NULLFS                  #NULL filesystem
  994 # Broken (depends on NCP):
  995 #options        NWFS                    #NetWare filesystem
  996 options         PORTALFS                #Portal filesystem
  997 options         PROCFS                  #Process filesystem (requires PSEUDOFS)
  998 options         PSEUDOFS                #Pseudo-filesystem framework
  999 options         PSEUDOFS_TRACE          #Debugging support for PSEUDOFS
 1000 options         SMBFS                   #SMB/CIFS filesystem
 1001 options         UDF                     #Universal Disk Format
 1002 options         UNIONFS                 #Union filesystem
 1003 # The xFS_ROOT options REQUIRE the associated ``options xFS''
 1004 options         NFS_ROOT                #NFS usable as root device
 1005 
 1006 # Soft updates is a technique for improving filesystem speed and
 1007 # making abrupt shutdown less risky.
 1008 #
 1009 options         SOFTUPDATES
 1010 
 1011 # Extended attributes allow additional data to be associated with files,
 1012 # and is used for ACLs, Capabilities, and MAC labels.
 1013 # See src/sys/ufs/ufs/README.extattr for more information.
 1014 options         UFS_EXTATTR
 1015 options         UFS_EXTATTR_AUTOSTART
 1016 
 1017 # Access Control List support for UFS filesystems.  The current ACL
 1018 # implementation requires extended attribute support, UFS_EXTATTR,
 1019 # for the underlying filesystem.
 1020 # See src/sys/ufs/ufs/README.acls for more information.
 1021 options         UFS_ACL
 1022 
 1023 # Directory hashing improves the speed of operations on very large
 1024 # directories at the expense of some memory.
 1025 options         UFS_DIRHASH
 1026 
 1027 # Gjournal-based UFS journaling support.
 1028 options         UFS_GJOURNAL
 1029 
 1030 # Make space in the kernel for a root filesystem on a md device.
 1031 # Define to the number of kilobytes to reserve for the filesystem.
 1032 options         MD_ROOT_SIZE=10
 1033 
 1034 # Make the md device a potential root device, either with preloaded
 1035 # images of type mfs_root or md_root.
 1036 options         MD_ROOT
 1037 
 1038 # Disk quotas are supported when this option is enabled.
 1039 options         QUOTA                   #enable disk quotas
 1040 
 1041 # If you are running a machine just as a fileserver for PC and MAC
 1042 # users, using SAMBA or Netatalk, you may consider setting this option
 1043 # and keeping all those users' directories on a filesystem that is
 1044 # mounted with the suiddir option. This gives new files the same
 1045 # ownership as the directory (similar to group). It's a security hole
 1046 # if you let these users run programs, so confine it to file-servers
 1047 # (but it'll save you lots of headaches in those cases). Root owned
 1048 # directories are exempt and X bits are cleared. The suid bit must be
 1049 # set on the directory as well; see chmod(1) PC owners can't see/set
 1050 # ownerships so they keep getting their toes trodden on. This saves
 1051 # you all the support calls as the filesystem it's used on will act as
 1052 # they expect: "It's my dir so it must be my file".
 1053 #
 1054 options         SUIDDIR
 1055 
 1056 # NFS options:
 1057 options         NFS_MINATTRTIMO=3       # VREG attrib cache timeout in sec
 1058 options         NFS_MAXATTRTIMO=60
 1059 options         NFS_MINDIRATTRTIMO=30   # VDIR attrib cache timeout in sec
 1060 options         NFS_MAXDIRATTRTIMO=60
 1061 options         NFS_GATHERDELAY=10      # Default write gather delay (msec)
 1062 options         NFS_WDELAYHASHSIZ=16    # and with this
 1063 options         NFS_DEBUG               # Enable NFS Debugging
 1064 
 1065 # Coda stuff:
 1066 options         CODA                    #CODA filesystem.
 1067 device          vcoda                   #coda minicache <-> venus comm.
 1068 # Use the old Coda 5.x venus<->kernel interface instead of the new
 1069 # realms-aware 6.x protocol.
 1070 #options        CODA_COMPAT_5
 1071 
 1072 #
 1073 # Add support for the EXT2FS filesystem of Linux fame.  Be a bit
 1074 # careful with this - the ext2fs code has a tendency to lag behind
 1075 # changes and not be exercised very much, so mounting read/write could
 1076 # be dangerous (and even mounting read only could result in panics.)
 1077 #
 1078 options         EXT2FS
 1079 
 1080 #
 1081 # Add support for the ReiserFS filesystem (used in Linux). Currently,
 1082 # this is limited to read-only access.
 1083 #
 1084 options         REISERFS
 1085 
 1086 #
 1087 # Add support for the SGI XFS filesystem. Currently,
 1088 # this is limited to read-only access.
 1089 #
 1090 options         XFS
 1091 
 1092 # Use real implementations of the aio_* system calls.  There are numerous
 1093 # stability and security issues in the current aio code that make it
 1094 # unsuitable for inclusion on machines with untrusted local users.
 1095 options         VFS_AIO
 1096 
 1097 # Cryptographically secure random number generator; /dev/random
 1098 device          random
 1099 
 1100 # The system memory devices; /dev/mem, /dev/kmem
 1101 device          mem
 1102 
 1103 # The kernel symbol table device; /dev/ksyms
 1104 device          ksyms
 1105 
 1106 # Optional character code conversion support with LIBICONV.
 1107 # Each option requires their base file system and LIBICONV.
 1108 options         CD9660_ICONV
 1109 options         MSDOSFS_ICONV
 1110 options         NTFS_ICONV
 1111 options         UDF_ICONV
 1112 
 1113 
 1114 #####################################################################
 1115 # POSIX P1003.1B
 1116 
 1117 # Real time extensions added in the 1993 POSIX
 1118 # _KPOSIX_PRIORITY_SCHEDULING: Build in _POSIX_PRIORITY_SCHEDULING
 1119 
 1120 options         _KPOSIX_PRIORITY_SCHEDULING
 1121 # p1003_1b_semaphores are very experimental,
 1122 # user should be ready to assist in debugging if problems arise.
 1123 options         P1003_1B_SEMAPHORES
 1124 
 1125 # POSIX message queue
 1126 options         P1003_1B_MQUEUE
 1127 
 1128 #####################################################################
 1129 # SECURITY POLICY PARAMETERS
 1130 
 1131 # Support for BSM audit
 1132 options         AUDIT
 1133 
 1134 # Support for Mandatory Access Control (MAC):
 1135 options         MAC
 1136 options         MAC_BIBA
 1137 options         MAC_BSDEXTENDED
 1138 options         MAC_IFOFF
 1139 options         MAC_LOMAC
 1140 options         MAC_MLS
 1141 options         MAC_NONE
 1142 options         MAC_PARTITION
 1143 options         MAC_PORTACL
 1144 options         MAC_SEEOTHERUIDS
 1145 options         MAC_STUB
 1146 options         MAC_TEST
 1147 
 1148 
 1149 #####################################################################
 1150 # CLOCK OPTIONS
 1151 
 1152 # The granularity of operation is controlled by the kernel option HZ whose
 1153 # default value (1000 on most architectures) means a granularity of 1ms
 1154 # (1s/HZ).  Historically, the default was 100, but finer granularity is
 1155 # required for DUMMYNET and other systems on modern hardware.  There are
 1156 # reasonable arguments that HZ should, in fact, be 100 still; consider,
 1157 # that reducing the granularity too much might cause excessive overhead in
 1158 # clock interrupt processing, potentially causing ticks to be missed and thus
 1159 # actually reducing the accuracy of operation.
 1160 
 1161 options         HZ=100
 1162 
 1163 # Enable support for the kernel PLL to use an external PPS signal,
 1164 # under supervision of [x]ntpd(8)
 1165 # More info in ntpd documentation: http://www.eecis.udel.edu/~ntp
 1166 
 1167 options         PPS_SYNC
 1168 
 1169 
 1170 #####################################################################
 1171 # SCSI DEVICES
 1172 
 1173 # SCSI DEVICE CONFIGURATION
 1174 
 1175 # The SCSI subsystem consists of the `base' SCSI code, a number of
 1176 # high-level SCSI device `type' drivers, and the low-level host-adapter
 1177 # device drivers.  The host adapters are listed in the ISA and PCI
 1178 # device configuration sections below.
 1179 #
 1180 # It is possible to wire down your SCSI devices so that a given bus,
 1181 # target, and LUN always come on line as the same device unit.  In
 1182 # earlier versions the unit numbers were assigned in the order that
 1183 # the devices were probed on the SCSI bus.  This means that if you
 1184 # removed a disk drive, you may have had to rewrite your /etc/fstab
 1185 # file, and also that you had to be careful when adding a new disk
 1186 # as it may have been probed earlier and moved your device configuration
 1187 # around.  (See also option GEOM_VOL for a different solution to this
 1188 # problem.)
 1189 
 1190 # This old behavior is maintained as the default behavior.  The unit
 1191 # assignment begins with the first non-wired down unit for a device
 1192 # type.  For example, if you wire a disk as "da3" then the first
 1193 # non-wired disk will be assigned da4.
 1194 
 1195 # The syntax for wiring down devices is:
 1196 
 1197 hint.scbus.0.at="ahc0"
 1198 hint.scbus.1.at="ahc1"
 1199 hint.scbus.1.bus="0"
 1200 hint.scbus.3.at="ahc2"
 1201 hint.scbus.3.bus="0"
 1202 hint.scbus.2.at="ahc2"
 1203 hint.scbus.2.bus="1"
 1204 hint.da.0.at="scbus0"
 1205 hint.da.0.target="0"
 1206 hint.da.0.unit="0"
 1207 hint.da.1.at="scbus3"
 1208 hint.da.1.target="1"
 1209 hint.da.2.at="scbus2"
 1210 hint.da.2.target="3"
 1211 hint.sa.1.at="scbus1"
 1212 hint.sa.1.target="6"
 1213 
 1214 # "units" (SCSI logical unit number) that are not specified are
 1215 # treated as if specified as LUN 0.
 1216 
 1217 # All SCSI devices allocate as many units as are required.
 1218 
 1219 # The ch driver drives SCSI Media Changer ("jukebox") devices.
 1220 #
 1221 # The da driver drives SCSI Direct Access ("disk") and Optical Media
 1222 # ("WORM") devices.
 1223 #
 1224 # The sa driver drives SCSI Sequential Access ("tape") devices.
 1225 #
 1226 # The cd driver drives SCSI Read Only Direct Access ("cd") devices.
 1227 #
 1228 # The ses driver drives SCSI Environment Services ("ses") and
 1229 # SAF-TE ("SCSI Accessible Fault-Tolerant Enclosure") devices.
 1230 #
 1231 # The pt driver drives SCSI Processor devices.
 1232 #
 1233 # The sg driver provides a passthrough API that is compatible with the
 1234 # Linux SG driver.  It will work in conjunction with the COMPAT_LINUX
 1235 # option to run linux SG apps.  It can also stand on its own and provide
 1236 # source level API compatiblity for porting apps to FreeBSD.
 1237 #
 1238 # Target Mode support is provided here but also requires that a SIM
 1239 # (SCSI Host Adapter Driver) provide support as well.
 1240 #
 1241 # The targ driver provides target mode support as a Processor type device.
 1242 # It exists to give the minimal context necessary to respond to Inquiry
 1243 # commands. There is a sample user application that shows how the rest
 1244 # of the command support might be done in /usr/share/examples/scsi_target.
 1245 #
 1246 # The targbh driver provides target mode support and exists to respond
 1247 # to incoming commands that do not otherwise have a logical unit assigned
 1248 # to them.
 1249 #
 1250 # The "unknown" device (uk? in pre-2.0.5) is now part of the base SCSI
 1251 # configuration as the "pass" driver.
 1252 
 1253 device          scbus           #base SCSI code
 1254 device          ch              #SCSI media changers
 1255 device          da              #SCSI direct access devices (aka disks)
 1256 device          sa              #SCSI tapes
 1257 device          cd              #SCSI CD-ROMs
 1258 device          ses             #SCSI Environmental Services (and SAF-TE)
 1259 device          pt              #SCSI processor
 1260 device          targ            #SCSI Target Mode Code
 1261 device          targbh          #SCSI Target Mode Blackhole Device
 1262 device          pass            #CAM passthrough driver
 1263 device          sg              #Linux SCSI passthrough
 1264 
 1265 # CAM OPTIONS:
 1266 # debugging options:
 1267 # CAMDEBUG              Compile in all possible debugging.
 1268 # CAM_DEBUG_COMPILE     Debug levels to compile in.
 1269 # CAM_DEBUG_FLAGS       Debug levels to enable on boot.
 1270 # CAM_DEBUG_BUS         Limit debugging to the given bus.
 1271 # CAM_DEBUG_TARGET      Limit debugging to the given target.
 1272 # CAM_DEBUG_LUN         Limit debugging to the given lun.
 1273 # CAM_DEBUG_DELAY       Delay in us after printing each debug line.
 1274 #
 1275 # CAM_MAX_HIGHPOWER: Maximum number of concurrent high power (start unit) cmds
 1276 # SCSI_NO_SENSE_STRINGS: When defined disables sense descriptions
 1277 # SCSI_NO_OP_STRINGS: When defined disables opcode descriptions
 1278 # SCSI_DELAY: The number of MILLISECONDS to freeze the SIM (scsi adapter)
 1279 #             queue after a bus reset, and the number of milliseconds to
 1280 #             freeze the device queue after a bus device reset.  This
 1281 #             can be changed at boot and runtime with the
 1282 #             kern.cam.scsi_delay tunable/sysctl.
 1283 options         CAMDEBUG
 1284 options         CAM_DEBUG_COMPILE=-1
 1285 options         CAM_DEBUG_FLAGS=(CAM_DEBUG_INFO|CAM_DEBUG_PROBE|CAM_DEBUG_PERIPH)
 1286 options         CAM_DEBUG_BUS=-1
 1287 options         CAM_DEBUG_TARGET=-1
 1288 options         CAM_DEBUG_LUN=-1
 1289 options         CAM_DEBUG_DELAY=1
 1290 options         CAM_MAX_HIGHPOWER=4
 1291 options         SCSI_NO_SENSE_STRINGS
 1292 options         SCSI_NO_OP_STRINGS
 1293 options         SCSI_DELAY=5000 # Be pessimistic about Joe SCSI device
 1294 
 1295 # Options for the CAM CDROM driver:
 1296 # CHANGER_MIN_BUSY_SECONDS: Guaranteed minimum time quantum for a changer LUN
 1297 # CHANGER_MAX_BUSY_SECONDS: Maximum time quantum per changer LUN, only
 1298 #                           enforced if there is I/O waiting for another LUN
 1299 # The compiled in defaults for these variables are 2 and 10 seconds,
 1300 # respectively.
 1301 #
 1302 # These can also be changed on the fly with the following sysctl variables:
 1303 # kern.cam.cd.changer.min_busy_seconds
 1304 # kern.cam.cd.changer.max_busy_seconds
 1305 #
 1306 options         CHANGER_MIN_BUSY_SECONDS=2
 1307 options         CHANGER_MAX_BUSY_SECONDS=10
 1308 
 1309 # Options for the CAM sequential access driver:
 1310 # SA_IO_TIMEOUT: Timeout for read/write/wfm  operations, in minutes
 1311 # SA_SPACE_TIMEOUT: Timeout for space operations, in minutes
 1312 # SA_REWIND_TIMEOUT: Timeout for rewind operations, in minutes
 1313 # SA_ERASE_TIMEOUT: Timeout for erase operations, in minutes
 1314 # SA_1FM_AT_EOD: Default to model which only has a default one filemark at EOT.
 1315 options         SA_IO_TIMEOUT=4
 1316 options         SA_SPACE_TIMEOUT=60
 1317 options         SA_REWIND_TIMEOUT=(2*60)
 1318 options         SA_ERASE_TIMEOUT=(4*60)
 1319 options         SA_1FM_AT_EOD
 1320 
 1321 # Optional timeout for the CAM processor target (pt) device
 1322 # This is specified in seconds.  The default is 60 seconds.
 1323 options         SCSI_PT_DEFAULT_TIMEOUT=60
 1324 
 1325 # Optional enable of doing SES passthrough on other devices (e.g., disks)
 1326 #
 1327 # Normally disabled because a lot of newer SCSI disks report themselves
 1328 # as having SES capabilities, but this can then clot up attempts to build
 1329 # build a topology with the SES device that's on the box these drives
 1330 # are in....
 1331 options         SES_ENABLE_PASSTHROUGH
 1332 
 1333 
 1334 #####################################################################
 1335 # MISCELLANEOUS DEVICES AND OPTIONS
 1336 
 1337 device          pty             #BSD-style compatibility pseudo ttys
 1338 device          nmdm            #back-to-back tty devices
 1339 device          md              #Memory/malloc disk
 1340 device          snp             #Snoop device - to look at pty/vty/etc..
 1341 device          ccd             #Concatenated disk driver
 1342 device          firmware        #firmware(9) support
 1343 
 1344 # Kernel side iconv library
 1345 options         LIBICONV
 1346 
 1347 # Size of the kernel message buffer.  Should be N * pagesize.
 1348 options         MSGBUF_SIZE=40960
 1349 
 1350 
 1351 #####################################################################
 1352 # HARDWARE DEVICE CONFIGURATION
 1353 
 1354 # For ISA the required hints are listed.
 1355 # EISA, MCA, PCI, CardBus, SD/MMC and pccard are self identifying buses, so
 1356 # no hints are needed.
 1357 
 1358 #
 1359 # Mandatory devices:
 1360 #
 1361 
 1362 # These options are valid for other keyboard drivers as well.
 1363 options         KBD_DISABLE_KEYMAP_LOAD # refuse to load a keymap
 1364 options         KBD_INSTALL_CDEV        # install a CDEV entry in /dev
 1365 
 1366 options         FB_DEBUG                # Frame buffer debugging
 1367 
 1368 device          splash                  # Splash screen and screen saver support
 1369 
 1370 # Various screen savers.
 1371 device          blank_saver
 1372 device          daemon_saver
 1373 device          dragon_saver
 1374 device          fade_saver
 1375 device          fire_saver
 1376 device          green_saver
 1377 device          logo_saver
 1378 device          rain_saver
 1379 device          snake_saver
 1380 device          star_saver
 1381 device          warp_saver
 1382 
 1383 # The syscons console driver (SCO color console compatible).
 1384 device          sc
 1385 hint.sc.0.at="isa"
 1386 options         MAXCONS=16              # number of virtual consoles
 1387 options         SC_ALT_MOUSE_IMAGE      # simplified mouse cursor in text mode
 1388 options         SC_DFLT_FONT            # compile font in
 1389 makeoptions     SC_DFLT_FONT=cp850
 1390 options         SC_DISABLE_KDBKEY       # disable `debug' key
 1391 options         SC_DISABLE_REBOOT       # disable reboot key sequence
 1392 options         SC_HISTORY_SIZE=200     # number of history buffer lines
 1393 options         SC_MOUSE_CHAR=0x3       # char code for text mode mouse cursor
 1394 options         SC_PIXEL_MODE           # add support for the raster text mode
 1395 
 1396 # The following options will let you change the default colors of syscons.
 1397 options         SC_NORM_ATTR=(FG_GREEN|BG_BLACK)
 1398 options         SC_NORM_REV_ATTR=(FG_YELLOW|BG_GREEN)
 1399 options         SC_KERNEL_CONS_ATTR=(FG_RED|BG_BLACK)
 1400 options         SC_KERNEL_CONS_REV_ATTR=(FG_BLACK|BG_RED)
 1401 
 1402 # The following options will let you change the default behaviour of
 1403 # cut-n-paste feature
 1404 options         SC_CUT_SPACES2TABS      # convert leading spaces into tabs
 1405 options         SC_CUT_SEPCHARS=\"x09\" # set of characters that delimit words
 1406                                         # (default is single space - \"x20\")
 1407 
 1408 # If you have a two button mouse, you may want to add the following option
 1409 # to use the right button of the mouse to paste text.
 1410 options         SC_TWOBUTTON_MOUSE
 1411 
 1412 # You can selectively disable features in syscons.
 1413 options         SC_NO_CUTPASTE
 1414 options         SC_NO_FONT_LOADING
 1415 options         SC_NO_HISTORY
 1416 options         SC_NO_MODE_CHANGE
 1417 options         SC_NO_SYSMOUSE
 1418 options         SC_NO_SUSPEND_VTYSWITCH
 1419 
 1420 # `flags' for sc
 1421 #       0x80    Put the video card in the VESA 800x600 dots, 16 color mode
 1422 #       0x100   Probe for a keyboard device periodically if one is not present
 1423 
 1424 # Enable experimental features of the syscons terminal emulator (teken).
 1425 options         TEKEN_UTF8              # UTF-8 output handling
 1426 options         TEKEN_XTERM             # xterm-style terminal emulation
 1427 
 1428 #
 1429 # Optional devices:
 1430 #
 1431 
 1432 #
 1433 # SCSI host adapters:
 1434 #
 1435 # adv: All Narrow SCSI bus AdvanSys controllers.
 1436 # adw: Second Generation AdvanSys controllers including the ADV940UW.
 1437 # aha: Adaptec 154x/1535/1640
 1438 # ahb: Adaptec 174x EISA controllers
 1439 # ahc: Adaptec 274x/284x/2910/293x/294x/394x/3950x/3960x/398X/4944/
 1440 #      19160x/29160x, aic7770/aic78xx
 1441 # ahd: Adaptec 29320/39320 Controllers.
 1442 # aic: Adaptec 6260/6360, APA-1460 (PC Card), NEC PC9801-100 (C-BUS)
 1443 # amd: Support for the AMD 53C974 SCSI host adapter chip as found on devices
 1444 #      such as the Tekram DC-390(T).
 1445 # bt:  Most Buslogic controllers: including BT-445, BT-54x, BT-64x, BT-74x,
 1446 #      BT-75x, BT-946, BT-948, BT-956, BT-958, SDC3211B, SDC3211F, SDC3222F
 1447 # esp: Emulex ESP, NCR 53C9x and QLogic FAS families based controllers
 1448 #      including the AMD Am53C974 (found on devices such as the Tekram
 1449 #      DC-390(T)) and the Sun ESP and FAS families of controllers
 1450 # isp: Qlogic ISP 1020, 1040 and 1040B PCI SCSI host adapters,
 1451 #      ISP 1240 Dual Ultra SCSI, ISP 1080 and 1280 (Dual) Ultra2,
 1452 #      ISP 12160 Ultra3 SCSI,
 1453 #      Qlogic ISP 2100 and ISP 2200 1Gb Fibre Channel host adapters.
 1454 #      Qlogic ISP 2300 and ISP 2312 2Gb Fibre Channel host adapters.
 1455 #      Qlogic ISP 2322 and ISP 6322 2Gb Fibre Channel host adapters.
 1456 # ispfw: Firmware module for Qlogic host adapters
 1457 # mpt: LSI-Logic MPT/Fusion 53c1020 or 53c1030 Ultra4
 1458 #      or FC9x9 Fibre Channel host adapters.
 1459 # ncr: NCR 53C810, 53C825 self-contained SCSI host adapters.
 1460 # sym: Symbios/Logic 53C8XX family of PCI-SCSI I/O processors:
 1461 #      53C810, 53C810A, 53C815, 53C825,  53C825A, 53C860, 53C875,
 1462 #      53C876, 53C885,  53C895, 53C895A, 53C896,  53C897, 53C1510D,
 1463 #      53C1010-33, 53C1010-66.
 1464 # trm: Tekram DC395U/UW/F DC315U adapters.
 1465 # wds: WD7000
 1466 
 1467 #
 1468 # Note that the order is important in order for Buslogic ISA/EISA cards to be
 1469 # probed correctly.
 1470 #
 1471 device          bt
 1472 hint.bt.0.at="isa"
 1473 hint.bt.0.port="0x330"
 1474 device          adv
 1475 hint.adv.0.at="isa"
 1476 device          adw
 1477 device          aha
 1478 hint.aha.0.at="isa"
 1479 device          aic
 1480 hint.aic.0.at="isa"
 1481 device          ahb
 1482 device          ahc
 1483 device          ahd
 1484 device          amd
 1485 device          esp
 1486 device          iscsi_initiator
 1487 device          isp
 1488 hint.isp.0.disable="1"
 1489 hint.isp.0.role="3"
 1490 hint.isp.0.prefer_iomap="1"
 1491 hint.isp.0.prefer_memmap="1"
 1492 hint.isp.0.fwload_disable="1"
 1493 hint.isp.0.ignore_nvram="1"
 1494 hint.isp.0.fullduplex="1"
 1495 hint.isp.0.topology="lport"
 1496 hint.isp.0.topology="nport"
 1497 hint.isp.0.topology="lport-only"
 1498 hint.isp.0.topology="nport-only"
 1499 # we can't get u_int64_t types, nor can we get strings if it's got
 1500 # a leading 0x, hence this silly dodge.
 1501 hint.isp.0.portwnn="w50000000aaaa0000"
 1502 hint.isp.0.nodewnn="w50000000aaaa0001"
 1503 device          ispfw
 1504 device          mpt
 1505 device          ncr
 1506 device          sym
 1507 device          trm
 1508 device          wds
 1509 hint.wds.0.at="isa"
 1510 hint.wds.0.port="0x350"
 1511 hint.wds.0.irq="11"
 1512 hint.wds.0.drq="6"
 1513 
 1514 # The aic7xxx driver will attempt to use memory mapped I/O for all PCI
 1515 # controllers that have it configured only if this option is set. Unfortunately,
 1516 # this doesn't work on some motherboards, which prevents it from being the
 1517 # default.
 1518 options         AHC_ALLOW_MEMIO
 1519 
 1520 # Dump the contents of the ahc controller configuration PROM.
 1521 options         AHC_DUMP_EEPROM
 1522 
 1523 # Bitmap of units to enable targetmode operations.
 1524 options         AHC_TMODE_ENABLE
 1525 
 1526 # Compile in Aic7xxx Debugging code.
 1527 options         AHC_DEBUG
 1528 
 1529 # Aic7xxx driver debugging options. See sys/dev/aic7xxx/aic7xxx.h
 1530 options         AHC_DEBUG_OPTS
 1531 
 1532 # Print register bitfields in debug output.  Adds ~128k to driver
 1533 # See ahc(4).
 1534 options         AHC_REG_PRETTY_PRINT
 1535 
 1536 # Compile in aic79xx debugging code.
 1537 options         AHD_DEBUG
 1538 
 1539 # Aic79xx driver debugging options.  Adds ~215k to driver.  See ahd(4).
 1540 options         AHD_DEBUG_OPTS=0xFFFFFFFF
 1541 
 1542 # Print human-readable register definitions when debugging
 1543 options         AHD_REG_PRETTY_PRINT
 1544 
 1545 # Bitmap of units to enable targetmode operations.
 1546 options         AHD_TMODE_ENABLE
 1547 
 1548 # The adw driver will attempt to use memory mapped I/O for all PCI
 1549 # controllers that have it configured only if this option is set.
 1550 options         ADW_ALLOW_MEMIO
 1551 
 1552 # Options used in dev/iscsi (Software iSCSI stack)
 1553 #
 1554 options         ISCSI_INITIATOR_DEBUG=9
 1555 
 1556 # Options used in dev/isp/ (Qlogic SCSI/FC driver).
 1557 #
 1558 #       ISP_TARGET_MODE         -       enable target mode operation
 1559 #
 1560 options         ISP_TARGET_MODE=1
 1561 #
 1562 #       ISP_DEFAULT_ROLES       -       default role
 1563 #               none=0
 1564 #               target=1
 1565 #               initiator=2
 1566 #               both=3                  (not supported currently)
 1567 #
 1568 options         ISP_DEFAULT_ROLES=2
 1569 
 1570 # Options used in dev/sym/ (Symbios SCSI driver).
 1571 #options        SYM_SETUP_LP_PROBE_MAP  #-Low Priority Probe Map (bits)
 1572                                         # Allows the ncr to take precedence
 1573                                         # 1 (1<<0) -> 810a, 860
 1574                                         # 2 (1<<1) -> 825a, 875, 885, 895
 1575                                         # 4 (1<<2) -> 895a, 896, 1510d
 1576 #options        SYM_SETUP_SCSI_DIFF     #-HVD support for 825a, 875, 885
 1577                                         # disabled:0 (default), enabled:1
 1578 #options        SYM_SETUP_PCI_PARITY    #-PCI parity checking
 1579                                         # disabled:0, enabled:1 (default)
 1580 #options        SYM_SETUP_MAX_LUN       #-Number of LUNs supported
 1581                                         # default:8, range:[1..64]
 1582 
 1583 # The 'dpt' driver provides support for old DPT controllers (http://www.dpt.com/).
 1584 # These have hardware RAID-{0,1,5} support, and do multi-initiator I/O.
 1585 # The DPT controllers are commonly re-licensed under other brand-names -
 1586 # some controllers by Olivetti, Dec, HP, AT&T, SNI, AST, Alphatronic, NEC and
 1587 # Compaq are actually DPT controllers.
 1588 #
 1589 # See src/sys/dev/dpt for debugging and other subtle options.
 1590 #   DPT_MEASURE_PERFORMANCE Enables a set of (semi)invasive metrics. Various
 1591 #                           instruments are enabled.  The tools in
 1592 #                           /usr/sbin/dpt_* assume these to be enabled.
 1593 #   DPT_HANDLE_TIMEOUTS     Normally device timeouts are handled by the DPT.
 1594 #                           If you ant the driver to handle timeouts, enable
 1595 #                           this option.  If your system is very busy, this
 1596 #                           option will create more trouble than solve.
 1597 #   DPT_TIMEOUT_FACTOR      Used to compute the excessive amount of time to
 1598 #                           wait when timing out with the above option.
 1599 #  DPT_DEBUG_xxxx           These are controllable from sys/dev/dpt/dpt.h
 1600 #  DPT_LOST_IRQ             When enabled, will try, once per second, to catch
 1601 #                           any interrupt that got lost.  Seems to help in some
 1602 #                           DPT-firmware/Motherboard combinations.  Minimal
 1603 #                           cost, great benefit.
 1604 #  DPT_RESET_HBA            Make "reset" actually reset the controller
 1605 #                           instead of fudging it.  Only enable this if you
 1606 #                           are 100% certain you need it.
 1607 
 1608 device          dpt
 1609 
 1610 # DPT options
 1611 #!CAM# options  DPT_MEASURE_PERFORMANCE
 1612 #!CAM# options  DPT_HANDLE_TIMEOUTS
 1613 options         DPT_TIMEOUT_FACTOR=4
 1614 options         DPT_LOST_IRQ
 1615 options         DPT_RESET_HBA
 1616 
 1617 #
 1618 # Compaq "CISS" RAID controllers (SmartRAID 5* series)
 1619 # These controllers have a SCSI-like interface, and require the
 1620 # CAM infrastructure.
 1621 #
 1622 device          ciss
 1623 
 1624 #
 1625 # Intel Integrated RAID controllers.
 1626 # This driver was developed and is maintained by Intel.  Contacts
 1627 # at Intel for this driver are
 1628 # "Kannanthanam, Boji T" <boji.t.kannanthanam@intel.com> and
 1629 # "Leubner, Achim" <achim.leubner@intel.com>.
 1630 #
 1631 device          iir
 1632 
 1633 #
 1634 # Mylex AcceleRAID and eXtremeRAID controllers with v6 and later
 1635 # firmware.  These controllers have a SCSI-like interface, and require
 1636 # the CAM infrastructure.
 1637 #
 1638 device          mly
 1639 
 1640 #
 1641 # Compaq Smart RAID, Mylex DAC960 and AMI MegaRAID controllers.  Only
 1642 # one entry is needed; the code will find and configure all supported
 1643 # controllers.
 1644 #
 1645 device          ida             # Compaq Smart RAID
 1646 device          mlx             # Mylex DAC960
 1647 device          amr             # AMI MegaRAID
 1648 device          amrp            # SCSI Passthrough interface (optional, CAM req.)
 1649 device          mfi             # LSI MegaRAID SAS
 1650 device          mfip            # LSI MegaRAID SAS passthrough, requires CAM
 1651 options         MFI_DEBUG
 1652 
 1653 #
 1654 # 3ware ATA RAID
 1655 #
 1656 device          twe             # 3ware ATA RAID
 1657 
 1658 #
 1659 # Serial ATA host controllers:
 1660 #
 1661 # ahci: Advanced Host Controller Interface (AHCI) compatible
 1662 # mvs:  Marvell 88SX50XX/88SX60XX/88SX70XX/SoC controllers
 1663 # siis: SiliconImage SiI3124/SiI3132/SiI3531 controllers
 1664 #
 1665 # These drivers are part of cam(4) subsystem. They supersede less featured
 1666 # ata(4) subsystem drivers, supporting same hardware.
 1667 
 1668 device          ahci
 1669 device          mvs
 1670 device          siis
 1671 
 1672 #
 1673 # The 'ATA' driver supports all ATA and ATAPI devices, including PC Card
 1674 # devices. You only need one "device ata" for it to find all
 1675 # PCI and PC Card ATA/ATAPI devices on modern machines.
 1676 # Alternatively, individual bus and chipset drivers may be chosen by using
 1677 # the 'atacore' driver then selecting the drivers on a per vendor basis.
 1678 # For example to build a system which only supports a VIA chipset,
 1679 # omit 'ata' and include the 'atacore', 'atapci' and 'atavia' drivers.
 1680 device          ata
 1681 device          atadisk         # ATA disk drives
 1682 device          ataraid         # ATA RAID drives
 1683 device          atapicd         # ATAPI CDROM drives
 1684 device          atapifd         # ATAPI floppy drives
 1685 device          atapist         # ATAPI tape drives
 1686 device          atapicam        # emulate ATAPI devices as SCSI ditto via CAM
 1687                                 # needs CAM to be present (scbus & pass)
 1688 
 1689 # Modular ATA
 1690 #device         atacore         # Core ATA functionality
 1691 #device         atacard         # CARDBUS support
 1692 #device         atabus          # PC98 cbus support
 1693 #device         ataisa          # ISA bus support
 1694 #device         atapci          # PCI bus support; only generic chipset support
 1695 
 1696 # PCI ATA chipsets
 1697 #device         ataahci         # AHCI SATA
 1698 #device         ataacard        # ACARD
 1699 #device         ataacerlabs     # Acer Labs Inc. (ALI)
 1700 #device         ataadaptec      # Adaptec
 1701 #device         ataamd          # American Micro Devices (AMD)
 1702 #device         ataati          # ATI
 1703 #device         atacenatek      # Cenatek
 1704 #device         atacypress      # Cypress
 1705 #device         atacyrix        # Cyrix
 1706 #device         atahighpoint    # HighPoint
 1707 #device         ataintel        # Intel
 1708 #device         ataite          # Integrated Technology Inc. (ITE)
 1709 #device         atajmicron      # JMicron
 1710 #device         atamarvell      # Marvell
 1711 #device         atamicron       # Micron
 1712 #device         atanational     # National
 1713 #device         atanetcell      # NetCell
 1714 #device         atanvidia       # nVidia
 1715 #device         atapromise      # Promise
 1716 #device         ataserverworks  # ServerWorks
 1717 #device         atasiliconimage # Silicon Image Inc. (SiI) (formerly CMD)
 1718 #device         atasis          # Silicon Integrated Systems Corp.(SiS)
 1719 #device         atavia          # VIA Technologies Inc.
 1720 
 1721 #
 1722 # For older non-PCI, non-PnPBIOS systems, these are the hints lines to add:
 1723 hint.ata.0.at="isa"
 1724 hint.ata.0.port="0x1f0"
 1725 hint.ata.0.irq="14"
 1726 hint.ata.1.at="isa"
 1727 hint.ata.1.port="0x170"
 1728 hint.ata.1.irq="15"
 1729 
 1730 #
 1731 # The following options are valid on the ATA driver:
 1732 #
 1733 # ATA_STATIC_ID:        controller numbering is static ie depends on location
 1734 #                       else the device numbers are dynamically allocated.
 1735 # ATA_REQUEST_TIMEOUT:  the number of seconds to wait for an ATA request
 1736 #                       before timing out.
 1737 # ATA_CAM:              Turn ata(4) subsystem controller drivers into cam(4)
 1738 #                       interface modules. This deprecates all ata(4)
 1739 #                       peripheral device drivers (atadisk, ataraid, atapicd,
 1740 #                       atapifd. atapist, atapicam) and all user-level APIs.
 1741 #                       cam(4) drivers and APIs will be connected instead.
 1742 
 1743 options         ATA_STATIC_ID
 1744 #options        ATA_REQUEST_TIMEOUT=10
 1745 #options        ATA_CAM
 1746 
 1747 #
 1748 # Standard floppy disk controllers and floppy tapes, supports
 1749 # the Y-E DATA External FDD (PC Card)
 1750 #
 1751 device          fdc
 1752 hint.fdc.0.at="isa"
 1753 hint.fdc.0.port="0x3F0"
 1754 hint.fdc.0.irq="6"
 1755 hint.fdc.0.drq="2"
 1756 #
 1757 # FDC_DEBUG enables floppy debugging.  Since the debug output is huge, you
 1758 # gotta turn it actually on by setting the variable fd_debug with DDB,
 1759 # however.
 1760 options         FDC_DEBUG
 1761 #
 1762 # Activate this line if you happen to have an Insight floppy tape.
 1763 # Probing them proved to be dangerous for people with floppy disks only,
 1764 # so it's "hidden" behind a flag:
 1765 #hint.fdc.0.flags="1"
 1766 
 1767 # Specify floppy devices
 1768 hint.fd.0.at="fdc0"
 1769 hint.fd.0.drive="0"
 1770 hint.fd.1.at="fdc0"
 1771 hint.fd.1.drive="1"
 1772 
 1773 #
 1774 # uart: newbusified driver for serial interfaces.  It consolidates the sio(4),
 1775 #       sab(4) and zs(4) drivers.
 1776 #
 1777 device          uart
 1778 
 1779 # Options for uart(4)
 1780 options         UART_PPS_ON_CTS         # Do time pulse capturing using CTS
 1781                                         # instead of DCD.
 1782 
 1783 # The following hint should only be used for pure ISA devices.  It is not
 1784 # needed otherwise.  Use of hints is strongly discouraged.
 1785 hint.uart.0.at="isa"
 1786 
 1787 # The following 3 hints are used when the UART is a system device (i.e., a
 1788 # console or debug port), but only on platforms that don't have any other
 1789 # means to pass the information to the kernel.  The unit number of the hint
 1790 # is only used to bundle the hints together.  There is no relation to the
 1791 # unit number of the probed UART.
 1792 hint.uart.0.port="0x3f8"
 1793 hint.uart.0.flags="0x10"
 1794 hint.uart.0.baud="115200"
 1795 
 1796 # `flags' for serial drivers that support consoles like sio(4) and uart(4):
 1797 #       0x10    enable console support for this unit.  Other console flags
 1798 #               (if applicable) are ignored unless this is set.  Enabling
 1799 #               console support does not make the unit the preferred console.
 1800 #               Boot with -h or set boot_serial=YES in the loader.  For sio(4)
 1801 #               specifically, the 0x20 flag can also be set (see above).
 1802 #               Currently, at most one unit can have console support; the
 1803 #               first one (in config file order) with this flag set is
 1804 #               preferred.  Setting this flag for sio0 gives the old behaviour.
 1805 #       0x80    use this port for serial line gdb support in ddb.  Also known
 1806 #               as debug port.
 1807 #
 1808 
 1809 # Options for serial drivers that support consoles:
 1810 options         BREAK_TO_DEBUGGER       # A BREAK on a serial console goes to
 1811                                         # ddb, if available.
 1812 
 1813 # Solaris implements a new BREAK which is initiated by a character
 1814 # sequence CR ~ ^b which is similar to a familiar pattern used on
 1815 # Sun servers by the Remote Console.  There are FreeBSD extentions:
 1816 # CR ~ ^p requests force panic and CR ~ ^r requests a clean reboot.
 1817 options         ALT_BREAK_TO_DEBUGGER
 1818 
 1819 # Serial Communications Controller
 1820 # Supports the Siemens SAB 82532 and Zilog Z8530 multi-channel
 1821 # communications controllers.
 1822 device          scc
 1823 
 1824 # PCI Universal Communications driver
 1825 # Supports various multi port PCI I/O cards.
 1826 device          puc
 1827 
 1828 #
 1829 # Network interfaces:
 1830 #
 1831 # MII bus support is required for many PCI Ethernet NICs,
 1832 # namely those which use MII-compliant transceivers or implement
 1833 # transceiver control interfaces that operate like an MII.  Adding
 1834 # "device miibus" to the kernel config pulls in support for the generic
 1835 # miibus API, the common support for for bit-bang'ing the MII and all
 1836 # of the PHY drivers, including a generic one for PHYs that aren't
 1837 # specifically handled by an individual driver.  Support for specific
 1838 # PHYs may be built by adding "device mii", "device mii_bitbang" if
 1839 # needed by the NIC driver and then adding the appropriate PHY driver.
 1840 device          mii             # Minimal MII support
 1841 device          mii_bitbang     # Common module for bit-bang'ing the MII
 1842 device          miibus          # MII support w/ bit-bang'ing and all PHYs
 1843 
 1844 device          acphy           # Altima Communications AC101
 1845 device          amphy           # AMD AM79c873 / Davicom DM910{1,2}
 1846 device          atphy           # Attansic/Atheros F1
 1847 device          axphy           # Asix Semiconductor AX88x9x
 1848 device          bmtphy          # Broadcom BCM5201/BCM5202 and 3Com 3c905C
 1849 device          brgphy          # Broadcom BCM54xx/57xx 1000baseTX
 1850 device          ciphy           # Cicada/Vitesse CS/VSC8xxx
 1851 device          e1000phy        # Marvell 88E1000 1000/100/10-BT
 1852 device          exphy           # 3Com internal PHY
 1853 device          gentbi          # Generic 10-bit 1000BASE-{LX,SX} fiber ifaces
 1854 device          icsphy          # ICS ICS1889-1893
 1855 device          inphy           # Intel 82553/82555
 1856 device          ip1000phy       # IC Plus IP1000A/IP1001
 1857 device          jmphy           # JMicron JMP211/JMP202
 1858 device          lxtphy          # Level One LXT-970
 1859 device          mlphy           # Micro Linear 6692
 1860 device          nsgphy          # NatSemi DP8361/DP83865/DP83891
 1861 device          nsphy           # NatSemi DP83840A
 1862 device          nsphyter        # NatSemi DP83843/DP83815
 1863 device          pnaphy          # HomePNA
 1864 device          qsphy           # Quality Semiconductor QS6612
 1865 device          rdcphy          # RDC Semiconductor R6040
 1866 device          rgephy          # RealTek 8169S/8110S/8211B/8211C
 1867 device          rlphy           # RealTek 8139
 1868 device          rlswitch        # RealTek 8305
 1869 device          ruephy          # RealTek RTL8150
 1870 device          smcphy          # SMSC LAN91C111
 1871 device          tdkphy          # TDK 89Q2120
 1872 device          tlphy           # Texas Instruments ThunderLAN
 1873 device          truephy         # LSI TruePHY
 1874 device          xmphy           # XaQti XMAC II
 1875 
 1876 # an:   Aironet 4500/4800 802.11 wireless adapters. Supports the PCMCIA,
 1877 #       PCI and ISA varieties.
 1878 # ae:   Support for gigabit ethernet adapters based on the Attansic/Atheros
 1879 #       L2 PCI-Express FastEthernet controllers.
 1880 # age:  Support for gigabit ethernet adapters based on the Attansic/Atheros
 1881 #       L1 PCI express gigabit ethernet controllers.
 1882 # alc:  Support for Atheros AR8131/AR8132 PCIe ethernet controllers.
 1883 # ale:  Support for Atheros AR8121/AR8113/AR8114 PCIe ethernet controllers.
 1884 # bce:  Broadcom NetXtreme II (BCM5706/BCM5708) PCI/PCIe Gigabit Ethernet
 1885 #       adapters.
 1886 # bfe:  Broadcom BCM4401 Ethernet adapter.
 1887 # bge:  Support for gigabit ethernet adapters based on the Broadcom
 1888 #       BCM570x family of controllers, including the 3Com 3c996-T,
 1889 #       the Netgear GA302T, the SysKonnect SK-9D21 and SK-9D41, and
 1890 #       the embedded gigE NICs on Dell PowerEdge 2550 servers.
 1891 # bwi:  Broadcom BCM430* and BCM431* family of wireless adapters.
 1892 # cas:  Sun Cassini/Cassini+ and National Semiconductor DP83065 Saturn
 1893 # cm:   Arcnet SMC COM90c26 / SMC COM90c56
 1894 #       (and SMC COM90c66 in '56 compatibility mode) adapters.
 1895 # cxgbe: Support for PCI express 10Gb/1Gb adapters based on the Chelsio T4
 1896 #       (Terminator 4) ASIC.
 1897 # dc:   Support for PCI fast ethernet adapters based on the DEC/Intel 21143
 1898 #       and various workalikes including:
 1899 #       the ADMtek AL981 Comet and AN985 Centaur, the ASIX Electronics
 1900 #       AX88140A and AX88141, the Davicom DM9100 and DM9102, the Lite-On
 1901 #       82c168 and 82c169 PNIC, the Lite-On/Macronix LC82C115 PNIC II
 1902 #       and the Macronix 98713/98713A/98715/98715A/98725 PMAC. This driver
 1903 #       replaces the old al, ax, dm, pn and mx drivers.  List of brands:
 1904 #       Digital DE500-BA, Kingston KNE100TX, D-Link DFE-570TX, SOHOware SFA110,
 1905 #       SVEC PN102-TX, CNet Pro110B, 120A, and 120B, Compex RL100-TX,
 1906 #       LinkSys LNE100TX, LNE100TX V2.0, Jaton XpressNet, Alfa Inc GFC2204,
 1907 #       KNE110TX.
 1908 # de:   Digital Equipment DC21040
 1909 # em:   Intel Pro/1000 Gigabit Ethernet 82542, 82543, 82544 based adapters.
 1910 # igb:  Intel Pro/1000 PCI Express Gigabit Ethernet: 82575 and later adapters.
 1911 # ep:   3Com 3C509, 3C529, 3C556, 3C562D, 3C563D, 3C572, 3C574X, 3C579, 3C589
 1912 #       and PC Card devices using these chipsets.
 1913 # ex:   Intel EtherExpress Pro/10 and other i82595-based adapters,
 1914 #       Olicom Ethernet PC Card devices.
 1915 # fe:   Fujitsu MB86960A/MB86965A Ethernet
 1916 # fea:  DEC DEFEA EISA FDDI adapter
 1917 # fpa:  Support for the Digital DEFPA PCI FDDI. `device fddi' is also needed.
 1918 # fxp:  Intel EtherExpress Pro/100B
 1919 #       (hint of prefer_iomap can be done to prefer I/O instead of Mem mapping)
 1920 # gem:  Apple GMAC/Sun ERI/Sun GEM
 1921 # hme:  Sun HME (Happy Meal Ethernet)
 1922 # jme:  JMicron JMC260 Fast Ethernet/JMC250 Gigabit Ethernet based adapters.
 1923 # le:   AMD Am7900 LANCE and Am79C9xx PCnet
 1924 # lge:  Support for PCI gigabit ethernet adapters based on the Level 1
 1925 #       LXT1001 NetCellerator chipset. This includes the D-Link DGE-500SX,
 1926 #       SMC TigerCard 1000 (SMC9462SX), and some Addtron cards.
 1927 # msk:  Support for gigabit ethernet adapters based on the Marvell/SysKonnect
 1928 #       Yukon II Gigabit controllers, including 88E8021, 88E8022, 88E8061,
 1929 #       88E8062, 88E8035, 88E8036, 88E8038, 88E8050, 88E8052, 88E8053,
 1930 #       88E8055, 88E8056 and D-Link 560T/550SX.
 1931 # lmc:  Support for the LMC/SBE wide-area network interface cards.
 1932 # my:   Myson Fast Ethernet (MTD80X, MTD89X)
 1933 # nge:  Support for PCI gigabit ethernet adapters based on the National
 1934 #       Semiconductor DP83820 and DP83821 chipset. This includes the
 1935 #       SMC EZ Card 1000 (SMC9462TX), D-Link DGE-500T, Asante FriendlyNet
 1936 #       GigaNIX 1000TA and 1000TPC, the Addtron AEG320T, the Surecom
 1937 #       EP-320G-TX and the Netgear GA622T.
 1938 # oce:  Emulex 10 Gbit adapters (OneConnect Ethernet)
 1939 # pcn:  Support for PCI fast ethernet adapters based on the AMD Am79c97x
 1940 #       PCnet-FAST, PCnet-FAST+, PCnet-FAST III, PCnet-PRO and PCnet-Home
 1941 #       chipsets. These can also be handled by the le(4) driver if the
 1942 #       pcn(4) driver is left out of the kernel. The le(4) driver does not
 1943 #       support the additional features like the MII bus and burst mode of
 1944 #       the PCnet-FAST and greater chipsets though.
 1945 # re:   RealTek 8139C+/8169/816xS/811xS/8101E PCI/PCIe Ethernet adapter
 1946 # rl:   Support for PCI fast ethernet adapters based on the RealTek 8129/8139
 1947 #       chipset.  Note that the RealTek driver defaults to using programmed
 1948 #       I/O to do register accesses because memory mapped mode seems to cause
 1949 #       severe lockups on SMP hardware.  This driver also supports the
 1950 #       Accton EN1207D `Cheetah' adapter, which uses a chip called
 1951 #       the MPX 5030/5038, which is either a RealTek in disguise or a
 1952 #       RealTek workalike.  Note that the D-Link DFE-530TX+ uses the RealTek
 1953 #       chipset and is supported by this driver, not the 'vr' driver.
 1954 # sf:   Support for Adaptec Duralink PCI fast ethernet adapters based on the
 1955 #       Adaptec AIC-6915 "starfire" controller.
 1956 #       This includes dual and quad port cards, as well as one 100baseFX card.
 1957 #       Most of these are 64-bit PCI devices, except for one single port
 1958 #       card which is 32-bit.
 1959 # sge:  Silicon Integrated Systems SiS190/191 Fast/Gigabit Ethernet adapter
 1960 # sis:  Support for NICs based on the Silicon Integrated Systems SiS 900,
 1961 #       SiS 7016 and NS DP83815 PCI fast ethernet controller chips.
 1962 # sk:   Support for the SysKonnect SK-984x series PCI gigabit ethernet NICs.
 1963 #       This includes the SK-9841 and SK-9842 single port cards (single mode
 1964 #       and multimode fiber) and the SK-9843 and SK-9844 dual port cards
 1965 #       (also single mode and multimode).
 1966 #       The driver will autodetect the number of ports on the card and
 1967 #       attach each one as a separate network interface.
 1968 # sn:   Support for ISA and PC Card Ethernet devices using the
 1969 #       SMC91C90/92/94/95 chips.
 1970 # ste:  Sundance Technologies ST201 PCI fast ethernet controller, includes
 1971 #       the D-Link DFE-550TX.
 1972 # stge: Support for gigabit ethernet adapters based on the Sundance/Tamarack
 1973 #       TC9021 family of controllers, including the Sundance ST2021/ST2023,
 1974 #       the Sundance/Tamarack TC9021, the D-Link DL-4000 and ASUS NX1101.
 1975 # ti:   Support for PCI gigabit ethernet NICs based on the Alteon Networks
 1976 #       Tigon 1 and Tigon 2 chipsets.  This includes the Alteon AceNIC, the
 1977 #       3Com 3c985, the Netgear GA620 and various others.  Note that you will
 1978 #       probably want to bump up kern.ipc.nmbclusters a lot to use this driver.
 1979 # tl:   Support for the Texas Instruments TNETE100 series 'ThunderLAN'
 1980 #       cards and integrated ethernet controllers.  This includes several
 1981 #       Compaq Netelligent 10/100 cards and the built-in ethernet controllers
 1982 #       in several Compaq Prosignia, Proliant and Deskpro systems.  It also
 1983 #       supports several Olicom 10Mbps and 10/100 boards.
 1984 # tx:   SMC 9432 TX, BTX and FTX cards. (SMC EtherPower II series)
 1985 # txp:  Support for 3Com 3cR990 cards with the "Typhoon" chipset
 1986 # vr:   Support for various fast ethernet adapters based on the VIA
 1987 #       Technologies VT3043 `Rhine I' and VT86C100A `Rhine II' chips,
 1988 #       including the D-Link DFE530TX (see 'rl' for DFE530TX+), the Hawking
 1989 #       Technologies PN102TX, and the AOpen/Acer ALN-320.
 1990 # vte:  DM&P Vortex86 RDC R6040 Fast Ethernet
 1991 # vx:   3Com 3C590 and 3C595
 1992 # wb:   Support for fast ethernet adapters based on the Winbond W89C840F chip.
 1993 #       Note: this is not the same as the Winbond W89C940F, which is a
 1994 #       NE2000 clone.
 1995 # wi:   Lucent WaveLAN/IEEE 802.11 PCMCIA adapters. Note: this supports both
 1996 #       the PCMCIA and ISA cards: the ISA card is really a PCMCIA to ISA
 1997 #       bridge with a PCMCIA adapter plugged into it.
 1998 # xe:   Xircom/Intel EtherExpress Pro100/16 PC Card ethernet controller,
 1999 #       Accton Fast EtherCard-16, Compaq Netelligent 10/100 PC Card,
 2000 #       Toshiba 10/100 Ethernet PC Card, Xircom 16-bit Ethernet + Modem 56
 2001 # xl:   Support for the 3Com 3c900, 3c905, 3c905B and 3c905C (Fast)
 2002 #       Etherlink XL cards and integrated controllers.  This includes the
 2003 #       integrated 3c905B-TX chips in certain Dell Optiplex and Dell
 2004 #       Precision desktop machines and the integrated 3c905-TX chips
 2005 #       in Dell Latitude laptop docking stations.
 2006 #       Also supported: 3Com 3c980(C)-TX, 3Com 3cSOHO100-TX, 3Com 3c450-TX
 2007 
 2008 # Order for ISA/EISA devices is important here
 2009 
 2010 device          cm
 2011 hint.cm.0.at="isa"
 2012 hint.cm.0.port="0x2e0"
 2013 hint.cm.0.irq="9"
 2014 hint.cm.0.maddr="0xdc000"
 2015 device          ep
 2016 device          ex
 2017 device          fe
 2018 hint.fe.0.at="isa"
 2019 hint.fe.0.port="0x300"
 2020 device          fea
 2021 device          sn
 2022 hint.sn.0.at="isa"
 2023 hint.sn.0.port="0x300"
 2024 hint.sn.0.irq="10"
 2025 device          an
 2026 device          wi
 2027 device          xe
 2028 
 2029 # PCI Ethernet NICs that use the common MII bus controller code.
 2030 device          ae              # Attansic/Atheros L2 FastEthernet
 2031 device          age             # Attansic/Atheros L1 Gigabit Ethernet
 2032 device          alc             # Atheros AR8131/AR8132 Ethernet
 2033 device          ale             # Atheros AR8121/AR8113/AR8114 Ethernet
 2034 device          bce             # Broadcom BCM5706/BCM5708 Gigabit Ethernet
 2035 device          bfe             # Broadcom BCM440x 10/100 Ethernet
 2036 device          bge             # Broadcom BCM570xx Gigabit Ethernet
 2037 device          cas             # Sun Cassini/Cassini+ and NS DP83065 Saturn
 2038 device          cxgb            # Chelsio T3 10 Gigabit Ethernet
 2039 device          cxgb_t3fw       # Chelsio T3 10 Gigabit Ethernet firmware
 2040 device          dc              # DEC/Intel 21143 and various workalikes
 2041 device          et              # Agere ET1310 10/100/Gigabit Ethernet
 2042 device          fxp             # Intel EtherExpress PRO/100B (82557, 82558)
 2043 hint.fxp.0.prefer_iomap="0"
 2044 device          gem             # Apple GMAC/Sun ERI/Sun GEM
 2045 device          hme             # Sun HME (Happy Meal Ethernet)
 2046 device          jme             # JMicron JMC250 Gigabit/JMC260 Fast Ethernet
 2047 device          lge             # Level 1 LXT1001 gigabit Ethernet
 2048 device          msk             # Marvell/SysKonnect Yukon II Gigabit Ethernet
 2049 device          my              # Myson Fast Ethernet (MTD80X, MTD89X)
 2050 device          nge             # NatSemi DP83820 gigabit Ethernet
 2051 device          re              # RealTek 8139C+/8169/8169S/8110S
 2052 device          rl              # RealTek 8129/8139
 2053 device          pcn             # AMD Am79C97x PCI 10/100 NICs
 2054 device          sf              # Adaptec AIC-6915 (``Starfire'')
 2055 device          sge             # Silicon Integrated Systems SiS190/191
 2056 device          sis             # Silicon Integrated Systems SiS 900/SiS 7016
 2057 device          sk              # SysKonnect SK-984x & SK-982x gigabit Ethernet
 2058 device          ste             # Sundance ST201 (D-Link DFE-550TX)
 2059 device          stge            # Sundance/Tamarack TC9021 gigabit Ethernet
 2060 device          tl              # Texas Instruments ThunderLAN
 2061 device          tx              # SMC EtherPower II (83c170 ``EPIC'')
 2062 device          vr              # VIA Rhine, Rhine II
 2063 device          vte             # DM&P Vortex86 RDC R6040 Fast Ethernet
 2064 device          wb              # Winbond W89C840F
 2065 device          xl              # 3Com 3c90x (``Boomerang'', ``Cyclone'')
 2066 
 2067 # PCI Ethernet NICs.
 2068 device          bwi             # Broadcom BCM430* BCM431*
 2069 device          cxgbe           # Chelsio T4 10GbE PCIe adapter
 2070 device          de              # DEC/Intel DC21x4x (``Tulip'')
 2071 device          em              # Intel Pro/1000 Gigabit Ethernet
 2072 device          igb             # Intel Pro/1000 PCIE Gigabit Ethernet
 2073 device          ixgbe           # Intel Pro/10Gbe PCIE Ethernet
 2074 device          le              # AMD Am7900 LANCE and Am79C9xx PCnet
 2075 device          mxge            # Myricom Myri-10G 10GbE NIC
 2076 device          nxge            # Neterion Xframe 10GbE Server/Storage Adapter
 2077 device          oce             # Emulex 10 GbE (OneConnect Ethernet)
 2078 device          ti              # Alteon Networks Tigon I/II gigabit Ethernet
 2079 device          txp             # 3Com 3cR990 (``Typhoon'')
 2080 device          vx              # 3Com 3c590, 3c595 (``Vortex'')
 2081 
 2082 # PCI FDDI NICs.
 2083 device          fpa
 2084 
 2085 # PCI WAN adapters.
 2086 device          lmc
 2087 
 2088 # Use sf_buf(9) interface for jumbo buffers on ti(4) controllers.
 2089 #options        TI_SF_BUF_JUMBO
 2090 # Turn on the header splitting option for the ti(4) driver firmware.  This
 2091 # only works for Tigon II chips, and has no effect for Tigon I chips.
 2092 # This option requires the TI_SF_BUF_JUMBO option above.
 2093 #options        TI_JUMBO_HDRSPLIT
 2094 
 2095 #
 2096 # Use header splitting feature on bce(4) adapters.
 2097 # This may help to reduce the amount of jumbo-sized memory buffers used.
 2098 #
 2099 options         BCE_JUMBO_HDRSPLIT
 2100 
 2101 # These two options allow manipulating the mbuf cluster size and mbuf size,
 2102 # respectively.  Be very careful with NIC driver modules when changing
 2103 # these from their default values, because that can potentially cause a
 2104 # mismatch between the mbuf size assumed by the kernel and the mbuf size
 2105 # assumed by a module.  The only driver that currently has the ability to
 2106 # detect a mismatch is ti(4).
 2107 options         MCLSHIFT=12     # mbuf cluster shift in bits, 12 == 4KB
 2108 options         MSIZE=512       # mbuf size in bytes
 2109 
 2110 #
 2111 # ATM related options (Cranor version)
 2112 # (note: this driver cannot be used with the HARP ATM stack)
 2113 #
 2114 # The `en' device provides support for Efficient Networks (ENI)
 2115 # ENI-155 PCI midway cards, and the Adaptec 155Mbps PCI ATM cards (ANA-59x0).
 2116 #
 2117 # The `hatm' device provides support for Fore/Marconi HE155 and HE622
 2118 # ATM PCI cards.
 2119 #
 2120 # The `fatm' device provides support for Fore PCA200E ATM PCI cards.
 2121 #
 2122 # The `patm' device provides support for IDT77252 based cards like
 2123 # ProSum's ProATM-155 and ProATM-25 and IDT's evaluation boards.
 2124 #
 2125 # atm device provides generic atm functions and is required for
 2126 # atm devices.
 2127 # NATM enables the netnatm protocol family that can be used to
 2128 # bypass TCP/IP.
 2129 #
 2130 # utopia provides the access to the ATM PHY chips and is required for en,
 2131 # hatm and fatm.
 2132 #
 2133 # the current driver supports only PVC operations (no atm-arp, no multicast).
 2134 # for more details, please read the original documents at
 2135 # http://www.ccrc.wustl.edu/pub/chuck/tech/bsdatm/bsdatm.html
 2136 #
 2137 device          atm
 2138 device          en
 2139 device          fatm                    #Fore PCA200E
 2140 device          hatm                    #Fore/Marconi HE155/622
 2141 device          patm                    #IDT77252 cards (ProATM and IDT)
 2142 device          utopia                  #ATM PHY driver
 2143 options         NATM                    #native ATM
 2144 
 2145 options         LIBMBPOOL               #needed by patm, iatm
 2146 
 2147 #
 2148 # Sound drivers
 2149 #
 2150 # sound: The generic sound driver.
 2151 #
 2152 
 2153 device          sound
 2154 
 2155 #
 2156 # snd_*: Device-specific drivers.
 2157 #
 2158 # The flags of the device tells the device a bit more info about the
 2159 # device that normally is obtained through the PnP interface.
 2160 #       bit  2..0   secondary DMA channel;
 2161 #       bit  4      set if the board uses two dma channels;
 2162 #       bit 15..8   board type, overrides autodetection; leave it
 2163 #                   zero if don't know what to put in (and you don't,
 2164 #                   since this is unsupported at the moment...).
 2165 #
 2166 # snd_ad1816:           Analog Devices AD1816 ISA PnP/non-PnP.
 2167 # snd_als4000:          Avance Logic ALS4000 PCI.
 2168 # snd_atiixp:           ATI IXP 200/300/400 PCI.
 2169 # snd_audiocs:          Crystal Semiconductor CS4231 SBus/EBus. Only
 2170 #                       for sparc64.
 2171 # snd_cmi:              CMedia CMI8338/CMI8738 PCI.
 2172 # snd_cs4281:           Crystal Semiconductor CS4281 PCI.
 2173 # snd_csa:              Crystal Semiconductor CS461x/428x PCI. (except
 2174 #                       4281)
 2175 # snd_ds1:              Yamaha DS-1 PCI.
 2176 # snd_emu10k1:          Creative EMU10K1 PCI and EMU10K2 (Audigy) PCI.
 2177 # snd_emu10kx:          Creative SoundBlaster Live! and Audigy
 2178 # snd_envy24:           VIA Envy24 and compatible, needs snd_spicds.
 2179 # snd_envy24ht:         VIA Envy24HT and compatible, needs snd_spicds.
 2180 # snd_es137x:           Ensoniq AudioPCI ES137x PCI.
 2181 # snd_ess:              Ensoniq ESS ISA PnP/non-PnP, to be used in
 2182 #                       conjunction with snd_sbc.
 2183 # snd_fm801:            Forte Media FM801 PCI.
 2184 # snd_gusc:             Gravis UltraSound ISA PnP/non-PnP.
 2185 # snd_hda:              Intel High Definition Audio (Controller) and
 2186 #                       compatible.
 2187 # snd_ich:              Intel ICH AC'97 and some more audio controllers
 2188 #                       embedded in a chipset, for example nVidia
 2189 #                       nForce controllers.
 2190 # snd_maestro:          ESS Technology Maestro-1/2x PCI.
 2191 # snd_maestro3:         ESS Technology Maestro-3/Allegro PCI.
 2192 # snd_mss:              Microsoft Sound System ISA PnP/non-PnP.
 2193 # snd_neomagic:         Neomagic 256 AV/ZX PCI.
 2194 # snd_sb16:             Creative SoundBlaster16, to be used in
 2195 #                       conjunction with snd_sbc.
 2196 # snd_sb8:              Creative SoundBlaster (pre-16), to be used in
 2197 #                       conjunction with snd_sbc.
 2198 # snd_sbc:              Creative SoundBlaster ISA PnP/non-PnP.
 2199 #                       Supports ESS and Avance ISA chips as well.
 2200 # snd_spicds:           SPI codec driver, needed by Envy24/Envy24HT drivers.
 2201 # snd_solo:             ESS Solo-1x PCI.
 2202 # snd_t4dwave:          Trident 4DWave DX/NX PCI, Sis 7018 PCI and Acer Labs
 2203 #                       M5451 PCI.
 2204 # snd_via8233:          VIA VT8233x PCI.
 2205 # snd_via82c686:        VIA VT82C686A PCI.
 2206 # snd_vibes:            S3 Sonicvibes PCI.
 2207 # snd_uaudio:           USB audio.
 2208 
 2209 device          snd_ad1816
 2210 device          snd_als4000
 2211 device          snd_atiixp
 2212 #device         snd_audiocs
 2213 device          snd_cmi
 2214 device          snd_cs4281
 2215 device          snd_csa
 2216 device          snd_ds1
 2217 device          snd_emu10k1
 2218 device          snd_emu10kx
 2219 device          snd_envy24
 2220 device          snd_envy24ht
 2221 device          snd_es137x
 2222 device          snd_ess
 2223 device          snd_fm801
 2224 device          snd_gusc
 2225 device          snd_hda
 2226 device          snd_ich
 2227 device          snd_maestro
 2228 device          snd_maestro3
 2229 device          snd_mss
 2230 device          snd_neomagic
 2231 device          snd_sb16
 2232 device          snd_sb8
 2233 device          snd_sbc
 2234 device          snd_solo
 2235 device          snd_spicds
 2236 device          snd_t4dwave
 2237 device          snd_via8233
 2238 device          snd_via82c686
 2239 device          snd_vibes
 2240 device          snd_uaudio
 2241 
 2242 # For non-PnP sound cards:
 2243 hint.pcm.0.at="isa"
 2244 hint.pcm.0.irq="10"
 2245 hint.pcm.0.drq="1"
 2246 hint.pcm.0.flags="0x0"
 2247 hint.sbc.0.at="isa"
 2248 hint.sbc.0.port="0x220"
 2249 hint.sbc.0.irq="5"
 2250 hint.sbc.0.drq="1"
 2251 hint.sbc.0.flags="0x15"
 2252 hint.gusc.0.at="isa"
 2253 hint.gusc.0.port="0x220"
 2254 hint.gusc.0.irq="5"
 2255 hint.gusc.0.drq="1"
 2256 hint.gusc.0.flags="0x13"
 2257 
 2258 #
 2259 # Following options are intended for debugging/testing purposes:
 2260 #
 2261 # SND_DEBUG                    Enable extra debugging code that includes
 2262 #                              sanity checking and possible increase of
 2263 #                              verbosity.
 2264 #
 2265 # SND_DIAGNOSTIC               Simmilar in a spirit of INVARIANTS/DIAGNOSTIC,
 2266 #                              zero tolerance against inconsistencies.
 2267 #
 2268 # SND_FEEDER_MULTIFORMAT       By default, only 16/32 bit feeders are compiled
 2269 #                              in. This options enable most feeder converters
 2270 #                              except for 8bit. WARNING: May bloat the kernel.
 2271 #
 2272 # SND_FEEDER_FULL_MULTIFORMAT  Ditto, but includes 8bit feeders as well.
 2273 #
 2274 # SND_FEEDER_RATE_HP           (feeder_rate) High precision 64bit arithmetic
 2275 #                              as much as possible (the default trying to
 2276 #                              avoid it). Possible slowdown.
 2277 #
 2278 # SND_PCM_64                   (Only applicable for i386/32bit arch)
 2279 #                              Process 32bit samples through 64bit
 2280 #                              integer/arithmetic. Slight increase of dynamic
 2281 #                              range at a cost of possible slowdown.
 2282 #
 2283 # SND_OLDSTEREO                Only 2 channels are allowed, effectively
 2284 #                              disabling multichannel processing.
 2285 #
 2286 options         SND_DEBUG
 2287 options         SND_DIAGNOSTIC
 2288 options         SND_FEEDER_MULTIFORMAT
 2289 options         SND_FEEDER_FULL_MULTIFORMAT
 2290 options         SND_FEEDER_RATE_HP
 2291 options         SND_PCM_64
 2292 options         SND_OLDSTEREO
 2293 
 2294 #
 2295 # IEEE-488 hardware:
 2296 # pcii:         PCIIA cards (uPD7210 based isa cards)
 2297 # tnt4882:      National Instruments PCI-GPIB card.
 2298 
 2299 device  pcii
 2300 hint.pcii.0.at="isa"
 2301 hint.pcii.0.port="0x2e1"
 2302 hint.pcii.0.irq="5"
 2303 hint.pcii.0.drq="1"
 2304 
 2305 device  tnt4882
 2306 
 2307 #
 2308 # Miscellaneous hardware:
 2309 #
 2310 # scd: Sony CD-ROM using proprietary (non-ATAPI) interface
 2311 # mcd: Mitsumi CD-ROM using proprietary (non-ATAPI) interface
 2312 # bktr: Brooktree bt848/848a/849a/878/879 video capture and TV Tuner board
 2313 # joy: joystick (including IO DATA PCJOY PC Card joystick)
 2314 # cmx: OmniKey CardMan 4040 pccard smartcard reader
 2315 
 2316 # Mitsumi CD-ROM
 2317 device          mcd
 2318 hint.mcd.0.at="isa"
 2319 hint.mcd.0.port="0x300"
 2320 # for the Sony CDU31/33A CDROM
 2321 device          scd
 2322 hint.scd.0.at="isa"
 2323 hint.scd.0.port="0x230"
 2324 device          joy                     # PnP aware, hints for non-PnP only
 2325 hint.joy.0.at="isa"
 2326 hint.joy.0.port="0x201"
 2327 device          cmx
 2328 
 2329 #
 2330 # The 'bktr' device is a PCI video capture device using the Brooktree
 2331 # bt848/bt848a/bt849a/bt878/bt879 chipset. When used with a TV Tuner it forms a
 2332 # TV card, e.g. Miro PC/TV, Hauppauge WinCast/TV WinTV, VideoLogic Captivator,
 2333 # Intel Smart Video III, AverMedia, IMS Turbo, FlyVideo.
 2334 #
 2335 # options       OVERRIDE_CARD=xxx
 2336 # options       OVERRIDE_TUNER=xxx
 2337 # options       OVERRIDE_MSP=1
 2338 # options       OVERRIDE_DBX=1
 2339 # These options can be used to override the auto detection
 2340 # The current values for xxx are found in src/sys/dev/bktr/bktr_card.h
 2341 # Using sysctl(8) run-time overrides on a per-card basis can be made
 2342 #
 2343 # options       BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_PAL
 2344 # or
 2345 # options       BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_NTSC
 2346 # Specifies the default video capture mode.
 2347 # This is required for Dual Crystal (28&35MHz) boards where PAL is used
 2348 # to prevent hangs during initialisation, e.g. VideoLogic Captivator PCI.
 2349 #
 2350 # options       BKTR_USE_PLL
 2351 # This is required for PAL or SECAM boards with a 28MHz crystal and no 35MHz
 2352 # crystal, e.g. some new Bt878 cards.
 2353 #
 2354 # options       BKTR_GPIO_ACCESS
 2355 # This enable IOCTLs which give user level access to the GPIO port.
 2356 #
 2357 # options       BKTR_NO_MSP_RESET
 2358 # Prevents the MSP34xx reset. Good if you initialise the MSP in another OS first
 2359 #
 2360 # options       BKTR_430_FX_MODE
 2361 # Switch Bt878/879 cards into Intel 430FX chipset compatibility mode.
 2362 #
 2363 # options       BKTR_SIS_VIA_MODE
 2364 # Switch Bt878/879 cards into SIS/VIA chipset compatibility mode which is
 2365 # needed for some old SiS and VIA chipset motherboards.
 2366 # This also allows Bt878/879 chips to work on old OPTi (<1997) chipset
 2367 # motherboards and motherboards with bad or incomplete PCI 2.1 support.
 2368 # As a rough guess, old = before 1998
 2369 #
 2370 # options       BKTR_NEW_MSP34XX_DRIVER
 2371 # Use new, more complete initialization scheme for the msp34* soundchip.
 2372 # Should fix stereo autodetection if the old driver does only output
 2373 # mono sound.
 2374 
 2375 #
 2376 # options       BKTR_USE_FREEBSD_SMBUS
 2377 # Compile with FreeBSD SMBus implementation
 2378 #
 2379 # Brooktree driver has been ported to the new I2C framework. Thus,
 2380 # you'll need to have the following 3 lines in the kernel config.
 2381 #     device smbus
 2382 #     device iicbus
 2383 #     device iicbb
 2384 #     device iicsmb
 2385 # The iic and smb devices are only needed if you want to control other
 2386 # I2C slaves connected to the external connector of some cards.
 2387 #
 2388 device          bktr
 2389  
 2390 #
 2391 # PC Card/PCMCIA and Cardbus
 2392 #
 2393 # cbb: pci/cardbus bridge implementing YENTA interface
 2394 # pccard: pccard slots
 2395 # cardbus: cardbus slots
 2396 device          cbb
 2397 device          pccard
 2398 device          cardbus
 2399 
 2400 #
 2401 # MMC/SD
 2402 #
 2403 # mmc           MMC/SD bus
 2404 # mmcsd         MMC/SD memory card
 2405 # sdhci         Generic PCI SD Host Controller
 2406 #
 2407 device          mmc
 2408 device          mmcsd
 2409 device          sdhci
 2410 
 2411 #
 2412 # SMB bus
 2413 #
 2414 # System Management Bus support is provided by the 'smbus' device.
 2415 # Access to the SMBus device is via the 'smb' device (/dev/smb*),
 2416 # which is a child of the 'smbus' device.
 2417 #
 2418 # Supported devices:
 2419 # smb           standard I/O through /dev/smb*
 2420 #
 2421 # Supported SMB interfaces:
 2422 # iicsmb        I2C to SMB bridge with any iicbus interface
 2423 # bktr          brooktree848 I2C hardware interface
 2424 # intpm         Intel PIIX4 (82371AB, 82443MX) Power Management Unit
 2425 # alpm          Acer Aladdin-IV/V/Pro2 Power Management Unit
 2426 # ichsmb        Intel ICH SMBus controller chips (82801AA, 82801AB, 82801BA)
 2427 # viapm         VIA VT82C586B/596B/686A and VT8233 Power Management Unit
 2428 # amdpm         AMD 756 Power Management Unit
 2429 # amdsmb        AMD 8111 SMBus 2.0 Controller
 2430 # nfpm          NVIDIA nForce Power Management Unit
 2431 # nfsmb         NVIDIA nForce2/3/4 MCP SMBus 2.0 Controller
 2432 #
 2433 device          smbus           # Bus support, required for smb below.
 2434 
 2435 device          intpm
 2436 device          alpm
 2437 device          ichsmb
 2438 device          viapm
 2439 device          amdpm
 2440 device          amdsmb
 2441 device          nfpm
 2442 device          nfsmb
 2443 
 2444 device          smb
 2445 
 2446 #
 2447 # I2C Bus
 2448 #
 2449 # Philips i2c bus support is provided by the `iicbus' device.
 2450 #
 2451 # Supported devices:
 2452 # ic    i2c network interface
 2453 # iic   i2c standard io
 2454 # iicsmb i2c to smb bridge. Allow i2c i/o with smb commands.
 2455 #
 2456 # Supported interfaces:
 2457 # bktr  brooktree848 I2C software interface
 2458 #
 2459 # Other:
 2460 # iicbb generic I2C bit-banging code (needed by lpbb, bktr)
 2461 #
 2462 device          iicbus          # Bus support, required for ic/iic/iicsmb below.
 2463 device          iicbb
 2464 
 2465 device          ic
 2466 device          iic
 2467 device          iicsmb          # smb over i2c bridge
 2468 
 2469 # I2C peripheral devices
 2470 #
 2471 # ds133x        Dallas Semiconductor DS1337, DS1338 and DS1339 RTC
 2472 # ds1672        Dallas Semiconductor DS1672 RTC
 2473 #
 2474 device          ds133x
 2475 device          ds1672
 2476 
 2477 # Parallel-Port Bus
 2478 #
 2479 # Parallel port bus support is provided by the `ppbus' device.
 2480 # Multiple devices may be attached to the parallel port, devices
 2481 # are automatically probed and attached when found.
 2482 #
 2483 # Supported devices:
 2484 # vpo   Iomega Zip Drive
 2485 #       Requires SCSI disk support ('scbus' and 'da'), best
 2486 #       performance is achieved with ports in EPP 1.9 mode.
 2487 # lpt   Parallel Printer
 2488 # plip  Parallel network interface
 2489 # ppi   General-purpose I/O ("Geek Port") + IEEE1284 I/O
 2490 # pps   Pulse per second Timing Interface
 2491 # lpbb  Philips official parallel port I2C bit-banging interface
 2492 # pcfclock Parallel port clock driver.
 2493 #
 2494 # Supported interfaces:
 2495 # ppc   ISA-bus parallel port interfaces.
 2496 #
 2497 
 2498 options         PPC_PROBE_CHIPSET # Enable chipset specific detection
 2499                                   # (see flags in ppc(4))
 2500 options         DEBUG_1284      # IEEE1284 signaling protocol debug
 2501 options         PERIPH_1284     # Makes your computer act as an IEEE1284
 2502                                 # compliant peripheral
 2503 options         DONTPROBE_1284  # Avoid boot detection of PnP parallel devices
 2504 options         VP0_DEBUG       # ZIP/ZIP+ debug
 2505 options         LPT_DEBUG       # Printer driver debug
 2506 options         PPC_DEBUG       # Parallel chipset level debug
 2507 options         PLIP_DEBUG      # Parallel network IP interface debug
 2508 options         PCFCLOCK_VERBOSE         # Verbose pcfclock driver
 2509 options         PCFCLOCK_MAX_RETRIES=5   # Maximum read tries (default 10)
 2510 
 2511 device          ppc
 2512 hint.ppc.0.at="isa"
 2513 hint.ppc.0.irq="7"
 2514 device          ppbus
 2515 device          vpo
 2516 device          lpt
 2517 device          plip
 2518 device          ppi
 2519 device          pps
 2520 device          lpbb
 2521 device          pcfclock
 2522 
 2523 # Kernel BOOTP support
 2524 
 2525 options         BOOTP           # Use BOOTP to obtain IP address/hostname
 2526                                 # Requires NFSCLIENT and NFS_ROOT
 2527 options         BOOTP_NFSROOT   # NFS mount root filesystem using BOOTP info
 2528 options         BOOTP_NFSV3     # Use NFS v3 to NFS mount root
 2529 options         BOOTP_COMPAT    # Workaround for broken bootp daemons.
 2530 options         BOOTP_WIRED_TO=fxp0 # Use interface fxp0 for BOOTP
 2531 options         BOOTP_BLOCKSIZE=8192 # Override NFS block size
 2532 
 2533 #
 2534 # Add software watchdog routines.
 2535 #
 2536 options         SW_WATCHDOG
 2537 
 2538 #
 2539 # Add the software deadlock resolver thread.
 2540 #
 2541 options         DEADLKRES
 2542 
 2543 #
 2544 # Disable swapping of stack pages.  This option removes all
 2545 # code which actually performs swapping, so it's not possible to turn
 2546 # it back on at run-time.
 2547 #
 2548 # This is sometimes usable for systems which don't have any swap space
 2549 # (see also sysctls "vm.defer_swapspace_pageouts" and
 2550 # "vm.disable_swapspace_pageouts")
 2551 #
 2552 #options        NO_SWAPPING
 2553 
 2554 # Set the number of sf_bufs to allocate. sf_bufs are virtual buffers
 2555 # for sendfile(2) that are used to map file VM pages, and normally
 2556 # default to a quantity that is roughly 16*MAXUSERS+512. You would
 2557 # typically want about 4 of these for each simultaneous file send.
 2558 #
 2559 options         NSFBUFS=1024
 2560 
 2561 #
 2562 # Enable extra debugging code for locks.  This stores the filename and
 2563 # line of whatever acquired the lock in the lock itself, and change a
 2564 # number of function calls to pass around the relevant data.  This is
 2565 # not at all useful unless you are debugging lock code.  Also note
 2566 # that it is likely to break e.g. fstat(1) unless you recompile your
 2567 # userland with -DDEBUG_LOCKS as well.
 2568 #
 2569 options         DEBUG_LOCKS
 2570 
 2571 
 2572 #####################################################################
 2573 # USB support
 2574 # UHCI controller
 2575 device          uhci
 2576 # OHCI controller
 2577 device          ohci
 2578 # EHCI controller
 2579 device          ehci
 2580 # XHCI controller
 2581 device          xhci
 2582 # SL811 Controller
 2583 #device         slhci
 2584 # General USB code (mandatory for USB)
 2585 device          usb
 2586 #
 2587 # USB Double Bulk Pipe devices
 2588 device          udbp
 2589 # USB Fm Radio
 2590 device          ufm
 2591 # Human Interface Device (anything with buttons and dials)
 2592 device          uhid
 2593 # USB keyboard
 2594 device          ukbd
 2595 # USB printer
 2596 device          ulpt
 2597 # USB mass storage driver (Requires scbus and da)
 2598 device          umass
 2599 # USB mass storage driver for device-side mode
 2600 device          usfs
 2601 # USB support for Belkin F5U109 and Magic Control Technology serial adapters
 2602 device          umct
 2603 # USB modem support
 2604 device          umodem
 2605 # USB mouse
 2606 device          ums
 2607 # eGalax USB touch screen
 2608 device          uep
 2609 # Diamond Rio 500 MP3 player
 2610 device          urio
 2611 #
 2612 # USB serial support
 2613 device          ucom
 2614 # USB support for 3G modem cards by Option, Novatel, Huawei and Sierra
 2615 device          u3g
 2616 # USB support for Technologies ARK3116 based serial adapters
 2617 device          uark
 2618 # USB support for Belkin F5U103 and compatible serial adapters
 2619 device          ubsa
 2620 # USB support for serial adapters based on the FT8U100AX and FT8U232AM
 2621 device          uftdi
 2622 # USB support for some Windows CE based serial communication.
 2623 device          uipaq
 2624 # USB support for Prolific PL-2303 serial adapters
 2625 device          uplcom
 2626 # USB support for Silicon Laboratories CP2101/CP2102 based USB serial adapters
 2627 device          uslcom
 2628 # USB Visor and Palm devices
 2629 device          uvisor
 2630 # USB serial support for DDI pocket's PHS
 2631 device          uvscom
 2632 #
 2633 # ADMtek USB ethernet. Supports the LinkSys USB100TX,
 2634 # the Billionton USB100, the Melco LU-ATX, the D-Link DSB-650TX
 2635 # and the SMC 2202USB. Also works with the ADMtek AN986 Pegasus
 2636 # eval board.
 2637 device          aue
 2638 
 2639 # ASIX Electronics AX88172 USB 2.0 ethernet driver. Used in the
 2640 # LinkSys USB200M and various other adapters.
 2641 device          axe
 2642 
 2643 #
 2644 # Devices which communicate using Ethernet over USB, particularly
 2645 # Communication Device Class (CDC) Ethernet specification. Supports
 2646 # Sharp Zaurus PDAs, some DOCSIS cable modems and so on.
 2647 device          cdce
 2648 #
 2649 # CATC USB-EL1201A USB ethernet. Supports the CATC Netmate
 2650 # and Netmate II, and the Belkin F5U111.
 2651 device          cue
 2652 #
 2653 # Kawasaki LSI ethernet. Supports the LinkSys USB10T,
 2654 # Entrega USB-NET-E45, Peracom Ethernet Adapter, the
 2655 # 3Com 3c19250, the ADS Technologies USB-10BT, the ATen UC10T,
 2656 # the Netgear EA101, the D-Link DSB-650, the SMC 2102USB
 2657 # and 2104USB, and the Corega USB-T.
 2658 device          kue
 2659 #
 2660 # RealTek RTL8150 USB to fast ethernet. Supports the Melco LUA-KTX
 2661 # and the GREEN HOUSE GH-USB100B.
 2662 device          rue
 2663 #
 2664 # Davicom DM9601E USB to fast ethernet. Supports the Corega FEther USB-TXC.
 2665 device          udav
 2666 #
 2667 # HSxPA devices from Option N.V
 2668 device          uhso
 2669 
 2670 #
 2671 # Ralink Technology RT2501USB/RT2601USB wireless driver
 2672 device          rum
 2673 #
 2674 # Atheros AR5523 wireless driver
 2675 device          uath
 2676 #
 2677 # Ralink Technology RT2500USB wireless driver
 2678 device          ural
 2679 #
 2680 # ZyDas ZD1211/ZD1211B wireless driver
 2681 device          zyd
 2682 
 2683 # 
 2684 # debugging options for the USB subsystem
 2685 #
 2686 options         USB_DEBUG
 2687 options         U3G_DEBUG
 2688 
 2689 # options for ukbd:
 2690 options         UKBD_DFLT_KEYMAP        # specify the built-in keymap
 2691 makeoptions     UKBD_DFLT_KEYMAP=it.iso
 2692 
 2693 # options for uplcom:
 2694 options         UPLCOM_INTR_INTERVAL=100        # interrupt pipe interval
 2695                                                 # in milliseconds
 2696 
 2697 # options for uvscom:
 2698 options         UVSCOM_DEFAULT_OPKTSIZE=8       # default output packet size
 2699 options         UVSCOM_INTR_INTERVAL=100        # interrupt pipe interval
 2700                                                 # in milliseconds
 2701 
 2702 #####################################################################
 2703 # FireWire support
 2704 
 2705 device          firewire        # FireWire bus code
 2706 device          sbp             # SCSI over Firewire (Requires scbus and da)
 2707 device          sbp_targ        # SBP-2 Target mode  (Requires scbus and targ)
 2708 device          fwe             # Ethernet over FireWire (non-standard!)
 2709 device          fwip            # IP over FireWire (RFC2734 and RFC3146)
 2710 
 2711 #####################################################################
 2712 # dcons support (Dumb Console Device)
 2713 
 2714 device          dcons                   # dumb console driver
 2715 device          dcons_crom              # FireWire attachment
 2716 options         DCONS_BUF_SIZE=16384    # buffer size
 2717 options         DCONS_POLL_HZ=100       # polling rate
 2718 options         DCONS_FORCE_CONSOLE=0   # force to be the primary console
 2719 options         DCONS_FORCE_GDB=1       # force to be the gdb device
 2720 
 2721 #####################################################################
 2722 # crypto subsystem
 2723 #
 2724 # This is a port of the OpenBSD crypto framework.  Include this when
 2725 # configuring IPSEC and when you have a h/w crypto device to accelerate
 2726 # user applications that link to OpenSSL.
 2727 #
 2728 # Drivers are ports from OpenBSD with some simple enhancements that have
 2729 # been fed back to OpenBSD.
 2730 
 2731 device          crypto          # core crypto support
 2732 device          cryptodev       # /dev/crypto for access to h/w
 2733 
 2734 device          rndtest         # FIPS 140-2 entropy tester
 2735 
 2736 device          hifn            # Hifn 7951, 7781, etc.
 2737 options         HIFN_DEBUG      # enable debugging support: hw.hifn.debug
 2738 options         HIFN_RNDTEST    # enable rndtest support
 2739 
 2740 device          ubsec           # Broadcom 5501, 5601, 58xx
 2741 options         UBSEC_DEBUG     # enable debugging support: hw.ubsec.debug
 2742 options         UBSEC_RNDTEST   # enable rndtest support
 2743 
 2744 #####################################################################
 2745 
 2746 
 2747 #
 2748 # Embedded system options:
 2749 #
 2750 # An embedded system might want to run something other than init.
 2751 options         INIT_PATH=/sbin/init:/stand/sysinstall
 2752 
 2753 # Debug options
 2754 options         BUS_DEBUG       # enable newbus debugging
 2755 options         DEBUG_VFS_LOCKS # enable VFS lock debugging
 2756 options         SOCKBUF_DEBUG   # enable sockbuf last record/mb tail checking
 2757 
 2758 #
 2759 # Verbose SYSINIT
 2760 #
 2761 # Make the SYSINIT process performed by mi_startup() verbose.  This is very
 2762 # useful when porting to a new architecture.  If DDB is also enabled, this
 2763 # will print function names instead of addresses.
 2764 options         VERBOSE_SYSINIT
 2765 
 2766 #####################################################################
 2767 # SYSV IPC KERNEL PARAMETERS
 2768 #
 2769 # Maximum number of entries in a semaphore map.
 2770 options         SEMMAP=31
 2771 
 2772 # Maximum number of System V semaphores that can be used on the system at
 2773 # one time.
 2774 options         SEMMNI=11
 2775 
 2776 # Total number of semaphores system wide
 2777 options         SEMMNS=61
 2778 
 2779 # Total number of undo structures in system
 2780 options         SEMMNU=31
 2781 
 2782 # Maximum number of System V semaphores that can be used by a single process
 2783 # at one time.
 2784 options         SEMMSL=61
 2785 
 2786 # Maximum number of operations that can be outstanding on a single System V
 2787 # semaphore at one time.
 2788 options         SEMOPM=101
 2789 
 2790 # Maximum number of undo operations that can be outstanding on a single
 2791 # System V semaphore at one time.
 2792 options         SEMUME=11
 2793 
 2794 # Maximum number of shared memory pages system wide.
 2795 options         SHMALL=1025
 2796 
 2797 # Maximum size, in bytes, of a single System V shared memory region.
 2798 options         SHMMAX=(SHMMAXPGS*PAGE_SIZE+1)
 2799 options         SHMMAXPGS=1025
 2800 
 2801 # Minimum size, in bytes, of a single System V shared memory region.
 2802 options         SHMMIN=2
 2803 
 2804 # Maximum number of shared memory regions that can be used on the system
 2805 # at one time.
 2806 options         SHMMNI=33
 2807 
 2808 # Maximum number of System V shared memory regions that can be attached to
 2809 # a single process at one time.
 2810 options         SHMSEG=9
 2811 
 2812 # Set the amount of time (in seconds) the system will wait before
 2813 # rebooting automatically when a kernel panic occurs.  If set to (-1),
 2814 # the system will wait indefinitely until a key is pressed on the
 2815 # console.
 2816 options         PANIC_REBOOT_WAIT_TIME=16
 2817 
 2818 # Attempt to bypass the buffer cache and put data directly into the
 2819 # userland buffer for read operation when O_DIRECT flag is set on the
 2820 # file.  Both offset and length of the read operation must be
 2821 # multiples of the physical media sector size.
 2822 #
 2823 options         DIRECTIO
 2824 
 2825 # Specify a lower limit for the number of swap I/O buffers.  They are
 2826 # (among other things) used when bypassing the buffer cache due to
 2827 # DIRECTIO kernel option enabled and O_DIRECT flag set on file.
 2828 #
 2829 options         NSWBUF_MIN=120
 2830 
 2831 #####################################################################
 2832 
 2833 # More undocumented options for linting.
 2834 # Note that documenting these are not considered an affront.
 2835 
 2836 options         CAM_DEBUG_DELAY
 2837 
 2838 # VFS cluster debugging.
 2839 options         CLUSTERDEBUG
 2840 
 2841 options         DEBUG
 2842 
 2843 # Kernel filelock debugging.
 2844 options         LOCKF_DEBUG
 2845 
 2846 # System V compatible message queues
 2847 # Please note that the values provided here are used to test kernel
 2848 # building.  The defaults in the sources provide almost the same numbers.
 2849 # MSGSSZ must be a power of 2 between 8 and 1024.
 2850 options         MSGMNB=2049     # Max number of chars in queue
 2851 options         MSGMNI=41       # Max number of message queue identifiers
 2852 options         MSGSEG=2049     # Max number of message segments
 2853 options         MSGSSZ=16       # Size of a message segment
 2854 options         MSGTQL=41       # Max number of messages in system
 2855 
 2856 options         NBUF=512        # Number of buffer headers
 2857 
 2858 options         SCSI_NCR_DEBUG
 2859 options         SCSI_NCR_MAX_SYNC=10000
 2860 options         SCSI_NCR_MAX_WIDE=1
 2861 options         SCSI_NCR_MYADDR=7
 2862 
 2863 options         SC_DEBUG_LEVEL=5        # Syscons debug level
 2864 options         SC_RENDER_DEBUG # syscons rendering debugging
 2865 
 2866 options         VFS_BIO_DEBUG   # VFS buffer I/O debugging
 2867 
 2868 options         KSTACK_MAX_PAGES=32 # Maximum pages to give the kernel stack
 2869 
 2870 # Adaptec Array Controller driver options
 2871 options         AAC_DEBUG       # Debugging levels:
 2872                                 # 0 - quiet, only emit warnings
 2873                                 # 1 - noisy, emit major function
 2874                                 #     points and things done
 2875                                 # 2 - extremely noisy, emit trace
 2876                                 #     items in loops, etc.
 2877 
 2878 # Yet more undocumented options for linting.
 2879 # BKTR_ALLOC_PAGES has no effect except to cause warnings, and
 2880 # BROOKTREE_ALLOC_PAGES hasn't actually been superseded by it, since the
 2881 # driver still mostly spells this option BROOKTREE_ALLOC_PAGES.
 2882 ##options       BKTR_ALLOC_PAGES=(217*4+1)
 2883 options         BROOKTREE_ALLOC_PAGES=(217*4+1)
 2884 options         MAXFILES=999
 2885 

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