3 # NOTES -- Lines that can be cut/pasted into kernel and hints configs.
5 # Lines that begin with 'device', 'options', 'machine', 'ident', 'maxusers',
6 # 'makeoptions', 'hints', etc. go into the kernel configuration that you
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.
12 # Please use ``make LINT'' to create an old-style LINT file if you want to
13 # do kernel test-builds.
15 # This file contains machine independent kernel configuration notes. For
16 # machine dependent notes, look in /sys/<arch>/conf/NOTES.
20 # NOTES conventions and style guide:
22 # Large block comments should begin and end with a line containing only a
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.
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 "#!".
40 # This is the ``identification'' of the kernel. Usually this should
41 # be the same as the name of your kernel.
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.
53 # To statically compile in device wiring instead of /boot/device.hints
54 #hints "LINT.hints" # Default places to look for devices.
56 # Use the following to compile in values accessible to the kernel
57 # through getenv() (or kenv(1) in userland). The format of the file
58 # is 'variable=value', see kenv(1)
63 # The `makeoptions' parameter allows variables to be passed to the
64 # generated Makefile in the build area.
66 # CONF_CFLAGS gives some extra compiler flags that are added to ${CFLAGS}
67 # after most other flags. Here we use it to inhibit use of non-optimal
68 # gcc built-in functions (e.g., memcmp).
70 # DEBUG happens to be magic.
71 # The following is equivalent to 'config -g KERNELNAME' and creates
72 # 'kernel.debug' compiled with -g debugging as well as a normal
73 # 'kernel'. Use 'make install.debug' to install the debug kernel
74 # but that isn't normally necessary as the debug symbols are not loaded
75 # by the kernel and are not useful there anyway.
77 # KERNEL can be overridden so that you can change the default name of your
80 # MODULES_OVERRIDE can be used to limit modules built to a specific list.
82 makeoptions CONF_CFLAGS=-fno-builtin #Don't allow use of memcmp, etc.
83 #makeoptions DEBUG=-g #Build kernel with gdb(1) debug symbols
84 #makeoptions KERNEL=foo #Build kernel "foo" and install "/foo"
85 # Only build ext2fs module plus those parts of the sound system I need.
86 #makeoptions MODULES_OVERRIDE="ext2fs sound/sound sound/driver/maestro3"
87 makeoptions DESTDIR=/tmp
90 # FreeBSD processes are subject to certain limits to their consumption
91 # of system resources. See getrlimit(2) for more details. Each
92 # resource limit has two values, a "soft" limit and a "hard" limit.
93 # The soft limits can be modified during normal system operation, but
94 # the hard limits are set at boot time. Their default values are
95 # in sys/<arch>/include/vmparam.h. There are two ways to change them:
97 # 1. Set the values at kernel build time. The options below are one
98 # way to allow that limit to grow to 1GB. They can be increased
99 # further by changing the parameters:
101 # 2. In /boot/loader.conf, set the tunables kern.maxswzone,
102 # kern.maxbcache, kern.maxtsiz, kern.dfldsiz, kern.maxdsiz,
103 # kern.dflssiz, kern.maxssiz and kern.sgrowsiz.
105 # The options in /boot/loader.conf override anything in the kernel
106 # configuration file. See the function init_param1 in
107 # sys/kern/subr_param.c for more details.
110 options MAXDSIZ=(1024UL*1024*1024)
111 options MAXSSIZ=(128UL*1024*1024)
112 options DFLDSIZ=(1024UL*1024*1024)
115 # BLKDEV_IOSIZE sets the default block size used in user block
116 # device I/O. Note that this value will be overridden by the label
117 # when specifying a block device from a label with a non-0
118 # partition blocksize. The default is PAGE_SIZE.
120 options BLKDEV_IOSIZE=8192
123 # MAXPHYS and DFLTPHYS
125 # These are the maximal and safe 'raw' I/O block device access sizes.
126 # Reads and writes will be split into MAXPHYS chunks for known good
127 # devices and DFLTPHYS for the rest. Some applications have better
128 # performance with larger raw I/O access sizes. Note that certain VM
129 # parameters are derived from these values and making them too large
130 # can make an an unbootable kernel.
132 # The defaults are 64K and 128K respectively.
133 options DFLTPHYS=(64*1024)
134 options MAXPHYS=(128*1024)
137 # This allows you to actually store this configuration file into
138 # the kernel binary itself. See config(8) for more details.
140 options INCLUDE_CONFIG_FILE # Include this file in kernel
143 # Compile-time defaults for various boot parameters
145 options BOOTVERBOSE=1
146 options BOOTHOWTO=RB_MULTIPLE
148 options GEOM_AES # Don't use, use GEOM_BDE
149 options GEOM_BDE # Disk encryption.
150 options GEOM_BSD # BSD disklabels
151 options GEOM_CACHE # Disk cache.
152 options GEOM_CONCAT # Disk concatenation.
153 options GEOM_ELI # Disk encryption.
154 options GEOM_FOX # Redundant path mitigation
155 options GEOM_GATE # Userland services.
156 options GEOM_JOURNAL # Journaling.
157 options GEOM_LABEL # Providers labelization.
158 options GEOM_LINUX_LVM # Linux LVM2 volumes
159 options GEOM_MBR # DOS/MBR partitioning
160 options GEOM_MIRROR # Disk mirroring.
161 options GEOM_MULTIPATH # Disk multipath
162 options GEOM_NOP # Test class.
163 options GEOM_PART_APM # Apple partitioning
164 options GEOM_PART_BSD # BSD disklabel
165 options GEOM_PART_BSD64 # BSD disklabel64
166 options GEOM_PART_EBR # Extended Boot Records
167 options GEOM_PART_EBR_COMPAT # Backward compatible partition names
168 options GEOM_PART_GPT # GPT partitioning
169 options GEOM_PART_LDM # Logical Disk Manager
170 options GEOM_PART_MBR # MBR partitioning
171 options GEOM_PART_PC98 # PC-9800 disk partitioning
172 options GEOM_PART_VTOC8 # SMI VTOC8 disk label
173 options GEOM_PC98 # NEC PC9800 partitioning
174 options GEOM_RAID # Soft RAID functionality.
175 options GEOM_RAID3 # RAID3 functionality.
176 options GEOM_SHSEC # Shared secret.
177 options GEOM_STRIPE # Disk striping.
178 options GEOM_SUNLABEL # Sun/Solaris partitioning
179 options GEOM_UZIP # Read-only compressed disks
180 options GEOM_VINUM # Vinum logical volume manager
181 options GEOM_VIRSTOR # Virtual storage.
182 options GEOM_VOL # Volume names from UFS superblock
183 options GEOM_ZERO # Performance testing helper.
186 # The root device and filesystem type can be compiled in;
187 # this provides a fallback option if the root device cannot
188 # be correctly guessed by the bootstrap code, or an override if
189 # the RB_DFLTROOT flag (-r) is specified when booting the kernel.
191 options ROOTDEVNAME=\"ufs:da0s2e\"
194 #####################################################################
197 # Specifying one of SCHED_4BSD or SCHED_ULE is mandatory. These options
198 # select which scheduler is compiled in.
200 # SCHED_4BSD is the historical, proven, BSD scheduler. It has a global run
201 # queue and no CPU affinity which makes it suboptimal for SMP. It has very
202 # good interactivity and priority selection.
204 # SCHED_ULE provides significant performance advantages over 4BSD on many
205 # workloads on SMP machines. It supports cpu-affinity, per-cpu runqueues
206 # and scheduler locks. It also has a stronger notion of interactivity
207 # which leads to better responsiveness even on uniprocessor machines. This
208 # is the default scheduler.
210 # SCHED_STATS is a debugging option which keeps some stats in the sysctl
211 # tree at 'kern.sched.stats' and is useful for debugging scheduling decisions.
217 #####################################################################
220 # SMP enables building of a Symmetric MultiProcessor Kernel.
223 options SMP # Symmetric MultiProcessor Kernel
225 # MAXCPU defines the maximum number of CPUs that can boot in the system.
226 # A default value should be already present, for every architecture.
229 # MAXMEMDOM defines the maximum number of memory domains that can boot in the
230 # system. A default value should already be defined by every architecture.
233 # ADAPTIVE_MUTEXES changes the behavior of blocking mutexes to spin
234 # if the thread that currently owns the mutex is executing on another
235 # CPU. This behavior is enabled by default, so this option can be used
237 options NO_ADAPTIVE_MUTEXES
239 # ADAPTIVE_RWLOCKS changes the behavior of reader/writer locks to spin
240 # if the thread that currently owns the rwlock is executing on another
241 # CPU. This behavior is enabled by default, so this option can be used
243 options NO_ADAPTIVE_RWLOCKS
245 # ADAPTIVE_SX changes the behavior of sx locks to spin if the thread that
246 # currently owns the sx lock is executing on another CPU.
247 # This behavior is enabled by default, so this option can be used to
249 options NO_ADAPTIVE_SX
251 # MUTEX_NOINLINE forces mutex operations to call functions to perform each
252 # operation rather than inlining the simple cases. This can be used to
253 # shrink the size of the kernel text segment. Note that this behavior is
254 # already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
255 # and WITNESS options.
256 options MUTEX_NOINLINE
258 # RWLOCK_NOINLINE forces rwlock operations to call functions to perform each
259 # operation rather than inlining the simple cases. This can be used to
260 # shrink the size of the kernel text segment. Note that this behavior is
261 # already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
262 # and WITNESS options.
263 options RWLOCK_NOINLINE
265 # SX_NOINLINE forces sx lock operations to call functions to perform each
266 # operation rather than inlining the simple cases. This can be used to
267 # shrink the size of the kernel text segment. Note that this behavior is
268 # already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
269 # and WITNESS options.
272 # SMP Debugging Options:
274 # CALLOUT_PROFILING enables rudimentary profiling of the callwheel data
275 # structure used as backend in callout(9).
276 # PREEMPTION allows the threads that are in the kernel to be preempted by
277 # higher priority [interrupt] threads. It helps with interactivity
278 # and allows interrupt threads to run sooner rather than waiting.
279 # WARNING! Only tested on amd64 and i386.
280 # FULL_PREEMPTION instructs the kernel to preempt non-realtime kernel
281 # threads. Its sole use is to expose race conditions and other
282 # bugs during development. Enabling this option will reduce
283 # performance and increase the frequency of kernel panics by
284 # design. If you aren't sure that you need it then you don't.
285 # Relies on the PREEMPTION option. DON'T TURN THIS ON.
286 # MUTEX_DEBUG enables various extra assertions in the mutex code.
287 # SLEEPQUEUE_PROFILING enables rudimentary profiling of the hash table
288 # used to hold active sleep queues as well as sleep wait message
290 # TURNSTILE_PROFILING enables rudimentary profiling of the hash table
291 # used to hold active lock queues.
292 # UMTX_PROFILING enables rudimentary profiling of the hash table used
293 to hold active lock queues.
294 # WITNESS enables the witness code which detects deadlocks and cycles
295 # during locking operations.
296 # WITNESS_KDB causes the witness code to drop into the kernel debugger if
297 # a lock hierarchy violation occurs or if locks are held when going to
299 # WITNESS_SKIPSPIN disables the witness checks on spin mutexes.
301 options FULL_PREEMPTION
305 options WITNESS_SKIPSPIN
307 # LOCK_PROFILING - Profiling locks. See LOCK_PROFILING(9) for details.
308 options LOCK_PROFILING
309 # Set the number of buffers and the hash size. The hash size MUST be larger
310 # than the number of buffers. Hash size should be prime.
311 options MPROF_BUFFERS="1536"
312 options MPROF_HASH_SIZE="1543"
314 # Profiling for the callout(9) backend.
315 options CALLOUT_PROFILING
317 # Profiling for internal hash tables.
318 options SLEEPQUEUE_PROFILING
319 options TURNSTILE_PROFILING
320 options UMTX_PROFILING
323 #####################################################################
324 # COMPATIBILITY OPTIONS
327 # Implement system calls compatible with 4.3BSD and older versions of
328 # FreeBSD. You probably do NOT want to remove this as much current code
329 # still relies on the 4.3 emulation. Note that some architectures that
330 # are supported by FreeBSD do not include support for certain important
331 # aspects of this compatibility option, namely those related to the
332 # signal delivery mechanism.
339 # Note that as a general rule, COMPAT_FREEBSD<n> depends on
340 # COMPAT_FREEBSD<n+1>, COMPAT_FREEBSD<n+2>, etc.
342 # Enable FreeBSD4 compatibility syscalls
343 options COMPAT_FREEBSD4
345 # Enable FreeBSD5 compatibility syscalls
346 options COMPAT_FREEBSD5
348 # Enable FreeBSD6 compatibility syscalls
349 options COMPAT_FREEBSD6
351 # Enable FreeBSD7 compatibility syscalls
352 options COMPAT_FREEBSD7
354 # Enable Linux Kernel Programming Interface
355 #options COMPAT_LINUXKPI
358 # These three options provide support for System V Interface
359 # Definition-style interprocess communication, in the form of shared
360 # memory, semaphores, and message queues, respectively.
367 #####################################################################
371 # Compile with kernel debugger related code.
376 # Print a stack trace of the current thread on the console for a panic.
381 # Don't enter the debugger for a panic. Intended for unattended operation
382 # where you may want to enter the debugger from the console, but still want
383 # the machine to recover from a panic.
385 options KDB_UNATTENDED
388 # Enable the ddb debugger backend.
393 # Print the numerical value of symbols in addition to the symbolic
399 # Enable the remote gdb debugger backend.
404 # SYSCTL_DEBUG enables a 'sysctl' debug tree that can be used to dump the
405 # contents of the registered sysctl nodes on the console. It is disabled by
406 # default because it generates excessively verbose console output that can
407 # interfere with serial console operation.
412 # Enable textdump by default, this disables kernel core dumps.
414 options TEXTDUMP_PREFERRED
417 # Enable extra debug messages while performing textdumps.
419 options TEXTDUMP_VERBOSE
422 # NO_SYSCTL_DESCR omits the sysctl node descriptions to save space in the
424 options NO_SYSCTL_DESCR
427 # MALLOC_DEBUG_MAXZONES enables multiple uma zones for malloc(9)
428 # allocations that are smaller than a page. The purpose is to isolate
429 # different malloc types into hash classes, so that any buffer
430 # overruns or use-after-free will usually only affect memory from
431 # malloc types in that hash class. This is purely a debugging tool;
432 # by varying the hash function and tracking which hash class was
433 # corrupted, the intersection of the hash classes from each instance
434 # will point to a single malloc type that is being misused. At this
435 # point inspection or memguard(9) can be used to catch the offending
438 options MALLOC_DEBUG_MAXZONES=8
441 # DEBUG_MEMGUARD builds and enables memguard(9), a replacement allocator
442 # for the kernel used to detect modify-after-free scenarios. See the
443 # memguard(9) man page for more information on usage.
445 options DEBUG_MEMGUARD
448 # DEBUG_REDZONE enables buffer underflows and buffer overflows detection for
451 options DEBUG_REDZONE
454 # KTRACE enables the system-call tracing facility ktrace(2). To be more
455 # SMP-friendly, KTRACE uses a worker thread to process most trace events
456 # asynchronously to the thread generating the event. This requires a
457 # pre-allocated store of objects representing trace events. The
458 # KTRACE_REQUEST_POOL option specifies the initial size of this store.
459 # The size of the pool can be adjusted both at boottime and runtime via
460 # the kern.ktrace_request_pool tunable and sysctl.
462 options KTRACE #kernel tracing
463 options KTRACE_REQUEST_POOL=101
466 # KTR is a kernel tracing facility imported from BSD/OS. It is
467 # enabled with the KTR option. KTR_ENTRIES defines the number of
468 # entries in the circular trace buffer; it may be an arbitrary number.
469 # KTR_BOOT_ENTRIES defines the number of entries during the early boot,
470 # before malloc(9) is functional.
471 # KTR_COMPILE defines the mask of events to compile into the kernel as
472 # defined by the KTR_* constants in <sys/ktr.h>. KTR_MASK defines the
473 # initial value of the ktr_mask variable which determines at runtime
474 # what events to trace. KTR_CPUMASK determines which CPU's log
475 # events, with bit X corresponding to CPU X. The layout of the string
476 # passed as KTR_CPUMASK must match a series of bitmasks each of them
477 # separated by the "," character (ie:
478 # KTR_CPUMASK=0xAF,0xFFFFFFFFFFFFFFFF). KTR_VERBOSE enables
479 # dumping of KTR events to the console by default. This functionality
480 # can be toggled via the debug.ktr_verbose sysctl and defaults to off
481 # if KTR_VERBOSE is not defined. See ktr(4) and ktrdump(8) for details.
484 options KTR_BOOT_ENTRIES=1024
485 options KTR_ENTRIES=(128*1024)
486 options KTR_COMPILE=(KTR_INTR|KTR_PROC)
487 options KTR_MASK=KTR_INTR
488 options KTR_CPUMASK=0x3
492 # ALQ(9) is a facility for the asynchronous queuing of records from the kernel
493 # to a vnode, and is employed by services such as ktr(4) to produce trace
494 # files based on a kernel event stream. Records are written asynchronously
495 # in a worker thread.
501 # The INVARIANTS option is used in a number of source files to enable
502 # extra sanity checking of internal structures. This support is not
503 # enabled by default because of the extra time it would take to check
504 # for these conditions, which can only occur as a result of
505 # programming errors.
510 # The INVARIANT_SUPPORT option makes us compile in support for
511 # verifying some of the internal structures. It is a prerequisite for
512 # 'INVARIANTS', as enabling 'INVARIANTS' will make these functions be
513 # called. The intent is that you can set 'INVARIANTS' for single
514 # source files (by changing the source file or specifying it on the
515 # command line) if you have 'INVARIANT_SUPPORT' enabled. Also, if you
516 # wish to build a kernel module with 'INVARIANTS', then adding
517 # 'INVARIANT_SUPPORT' to your kernel will provide all the necessary
518 # infrastructure without the added overhead.
520 options INVARIANT_SUPPORT
523 # The DIAGNOSTIC option is used to enable extra debugging information
524 # from some parts of the kernel. As this makes everything more noisy,
525 # it is disabled by default.
530 # REGRESSION causes optional kernel interfaces necessary only for regression
531 # testing to be enabled. These interfaces may constitute security risks
532 # when enabled, as they permit processes to easily modify aspects of the
533 # run-time environment to reproduce unlikely or unusual (possibly normally
534 # impossible) scenarios.
539 # This option lets some drivers co-exist that can't co-exist in a running
540 # system. This is used to be able to compile all kernel code in one go for
541 # quality assurance purposes (like this file, which the option takes it name
544 options COMPILING_LINT
547 # STACK enables the stack(9) facility, allowing the capture of kernel stack
548 # for the purpose of procinfo(1), etc. stack(9) will also be compiled in
549 # automatically if DDB(4) is compiled into the kernel.
554 #####################################################################
555 # PERFORMANCE MONITORING OPTIONS
558 # The hwpmc driver that allows the use of in-CPU performance monitoring
559 # counters for performance monitoring. The base kernel needs to be configured
560 # with the 'options' line, while the hwpmc device can be either compiled
561 # in or loaded as a loadable kernel module.
563 # Additional configuration options may be required on specific architectures,
564 # please see hwpmc(4).
566 device hwpmc # Driver (also a loadable module)
568 options HWPMC_HOOKS # Other necessary kernel hooks
571 #####################################################################
577 options INET #Internet communications protocols
578 options INET6 #IPv6 communications protocols
580 options ROUTETABLES=2 # allocated fibs up to 65536. default is 1.
581 # but that would be a bad idea as they are large.
583 options TCP_OFFLOAD # TCP offload support.
585 # In order to enable IPSEC you MUST also add device crypto to
586 # your kernel configuration
587 options IPSEC #IP security (requires device crypto)
588 #options IPSEC_DEBUG #debug for IP security
591 # Set IPSEC_FILTERTUNNEL to change the default of the sysctl to force packets
592 # coming through a tunnel to be processed by any configured packet filtering
593 # twice. The default is that packets coming out of a tunnel are _not_ processed;
594 # they are assumed trusted.
596 # IPSEC history is preserved for such packets, and can be filtered
597 # using ipfw(8)'s 'ipsec' keyword, when this option is enabled.
599 #options IPSEC_FILTERTUNNEL #filter ipsec packets from a tunnel
601 # Set IPSEC_NAT_T to enable NAT-Traversal support. This enables
602 # optional UDP encapsulation of ESP packets.
604 options IPSEC_NAT_T #NAT-T support, UDP encap of ESP
606 options IPX #IPX/SPX communications protocols
608 options NETATALK #Appletalk communications protocols
609 options NETATALKDEBUG #Appletalk debugging
613 # NETSMB enables support for SMB protocol, it requires LIBMCHAIN and LIBICONV
615 options NETSMB #SMB/CIFS requester
617 # mchain library. It can be either loaded as KLD or compiled into kernel
620 # libalias library, performing NAT
627 # SCTP is a NEW transport protocol defined by
628 # RFC2960 updated by RFC3309 and RFC3758.. and
629 # soon to have a new base RFC and many many more
630 # extensions. This release supports all the extensions
631 # including many drafts (most about to become RFC's).
632 # It is the reference implementation of SCTP
633 # and is quite well tested.
635 # Note YOU MUST have both INET and INET6 defined.
636 # You don't have to enable V6, but SCTP is
637 # dual stacked and so far we have not torn apart
638 # the V6 and V4.. since an association can span
639 # both a V6 and V4 address at the SAME time :-)
642 # There are bunches of options:
643 # this one turns on all sorts of
644 # nastily printing that you can
645 # do. It's all controlled by a
646 # bit mask (settable by socket opt and
647 # by sysctl). Including will not cause
648 # logging until you set the bits.. but it
649 # can be quite verbose.. so without this
650 # option we don't do any of the tests for
651 # bits and prints.. which makes the code run
652 # faster.. if you are not debugging don't use.
655 # This option turns off the CRC32c checksum. Basically,
656 # you will not be able to talk to anyone else who
657 # has not done this. Its more for experimentation to
658 # see how much CPU the CRC32c really takes. Most new
659 # cards for TCP support checksum offload.. so this
660 # option gives you a "view" into what SCTP would be
661 # like with such an offload (which only exists in
662 # high in iSCSI boards so far). With the new
663 # splitting 8's algorithm its not as bad as it used
664 # to be.. but it does speed things up try only
665 # for in a captured lab environment :-)
666 options SCTP_WITH_NO_CSUM
670 # All that options after that turn on specific types of
671 # logging. You can monitor CWND growth, flight size
672 # and all sorts of things. Go look at the code and
673 # see. I have used this to produce interesting
674 # charts and graphs as well :->
676 # I have not yet committed the tools to get and print
677 # the logs, I will do that eventually .. before then
678 # if you want them send me an email rrs@freebsd.org
679 # You basically must have ktr(4) enabled for these
680 # and you then set the sysctl to turn on/off various
681 # logging bits. Use ktrdump(8) to pull the log and run
682 # it through a display program.. and graphs and other
685 options SCTP_LOCK_LOGGING
686 options SCTP_MBUF_LOGGING
687 options SCTP_MBCNT_LOGGING
688 options SCTP_PACKET_LOGGING
689 options SCTP_LTRACE_CHUNKS
690 options SCTP_LTRACE_ERRORS
693 # altq(9). Enable the base part of the hooks with the ALTQ option.
694 # Individual disciplines must be built into the base system and can not be
695 # loaded as modules at this point. ALTQ requires a stable TSC so if yours is
696 # broken or changes with CPU throttling then you must also have the ALTQ_NOPCC
699 options ALTQ_CBQ # Class Based Queueing
700 options ALTQ_RED # Random Early Detection
701 options ALTQ_RIO # RED In/Out
702 options ALTQ_HFSC # Hierarchical Packet Scheduler
703 options ALTQ_CDNR # Traffic conditioner
704 options ALTQ_PRIQ # Priority Queueing
705 options ALTQ_NOPCC # Required if the TSC is unusable
708 # netgraph(4). Enable the base netgraph code with the NETGRAPH option.
709 # Individual node types can be enabled with the corresponding option
710 # listed below; however, this is not strictly necessary as netgraph
711 # will automatically load the corresponding KLD module if the node type
712 # is not already compiled into the kernel. Each type below has a
713 # corresponding man page, e.g., ng_async(8).
714 options NETGRAPH # netgraph(4) system
715 options NETGRAPH_DEBUG # enable extra debugging, this
716 # affects netgraph(4) and nodes
718 options NETGRAPH_ASYNC
719 options NETGRAPH_ATMLLC
720 options NETGRAPH_ATM_ATMPIF
721 options NETGRAPH_BLUETOOTH # ng_bluetooth(4)
722 options NETGRAPH_BLUETOOTH_BT3C # ng_bt3c(4)
723 options NETGRAPH_BLUETOOTH_HCI # ng_hci(4)
724 options NETGRAPH_BLUETOOTH_L2CAP # ng_l2cap(4)
725 options NETGRAPH_BLUETOOTH_SOCKET # ng_btsocket(4)
726 options NETGRAPH_BLUETOOTH_UBT # ng_ubt(4)
727 options NETGRAPH_BLUETOOTH_UBTBCMFW # ubtbcmfw(4)
729 options NETGRAPH_BRIDGE
731 options NETGRAPH_CISCO
732 options NETGRAPH_DEFLATE
733 options NETGRAPH_DEVICE
734 options NETGRAPH_ECHO
735 options NETGRAPH_EIFACE
736 options NETGRAPH_ETHER
738 options NETGRAPH_FRAME_RELAY
740 options NETGRAPH_GIF_DEMUX
741 options NETGRAPH_HOLE
742 options NETGRAPH_IFACE
743 options NETGRAPH_IP_INPUT
744 options NETGRAPH_IPFW
745 options NETGRAPH_KSOCKET
746 options NETGRAPH_L2TP
748 # MPPC compression requires proprietary files (not included)
749 #options NETGRAPH_MPPC_COMPRESSION
750 options NETGRAPH_MPPC_ENCRYPTION
751 options NETGRAPH_NETFLOW
753 options NETGRAPH_ONE2MANY
754 options NETGRAPH_PATCH
755 options NETGRAPH_PIPE
757 options NETGRAPH_PPPOE
758 options NETGRAPH_PPTPGRE
759 options NETGRAPH_PRED1
760 options NETGRAPH_RFC1490
761 options NETGRAPH_SOCKET
762 options NETGRAPH_SPLIT
763 options NETGRAPH_SPPP
765 options NETGRAPH_TCPMSS
769 options NETGRAPH_VLAN
771 # NgATM - Netgraph ATM
773 options NGATM_ATMBASE
779 device mn # Munich32x/Falc54 Nx64kbit/sec cards.
781 # Network stack virtualization.
783 #options VNET_DEBUG # debug for VIMAGE
786 # Network interfaces:
787 # The `loop' device is MANDATORY when networking is enabled.
790 # The `ether' device provides generic code to handle
791 # Ethernets; it is MANDATORY when an Ethernet device driver is
792 # configured or token-ring is enabled.
795 # The `vlan' device implements the VLAN tagging of Ethernet frames
796 # according to IEEE 802.1Q.
799 # The `vxlan' device implements the VXLAN encapsulation of Ethernet
800 # frames in UDP packets according to RFC7348.
803 # The `wlan' device provides generic code to support 802.11
804 # drivers, including host AP mode; it is MANDATORY for the wi,
805 # and ath drivers and will eventually be required by all 802.11 drivers.
807 options IEEE80211_DEBUG #enable debugging msgs
808 options IEEE80211_AMPDU_AGE #age frames in AMPDU reorder q's
809 options IEEE80211_SUPPORT_MESH #enable 802.11s D3.0 support
810 options IEEE80211_SUPPORT_TDMA #enable TDMA support
812 # The `wlan_wep', `wlan_tkip', and `wlan_ccmp' devices provide
813 # support for WEP, TKIP, and AES-CCMP crypto protocols optionally
814 # used with 802.11 devices that depend on the `wlan' module.
819 # The `wlan_xauth' device provides support for external (i.e. user-mode)
820 # authenticators for use with 802.11 drivers that use the `wlan'
821 # module and support 802.1x and/or WPA security protocols.
824 # The `wlan_acl' device provides a MAC-based access control mechanism
825 # for use with 802.11 drivers operating in ap mode and using the
827 # The 'wlan_amrr' device provides AMRR transmit rate control algorithm
834 # The `fddi' device provides generic code to support FDDI.
837 # The `arcnet' device provides generic code to support Arcnet.
840 # The `sppp' device serves a similar role for certain types
841 # of synchronous PPP links (like `cx', `ar').
844 # The `bpf' device enables the Berkeley Packet Filter. Be
845 # aware of the legal and administrative consequences of enabling this
846 # option. DHCP requires bpf.
849 # The `netmap' device implements memory-mapped access to network
850 # devices from userspace, enabling wire-speed packet capture and
851 # generation even at 10Gbit/s. Requires support in the device
852 # driver. Supported drivers are ixgbe, e1000, re.
855 # The `disc' device implements a minimal network interface,
856 # which throws away all packets sent and never receives any. It is
857 # included for testing and benchmarking purposes.
860 # The `epair' device implements a virtual back-to-back connected Ethernet
861 # like interface pair.
864 # The `edsc' device implements a minimal Ethernet interface,
865 # which discards all packets sent and receives none.
868 # The `tap' device is a pty-like virtual Ethernet interface
871 # The `tun' device implements (user-)ppp and nos-tun(8)
874 # The `gif' device implements IPv6 over IP4 tunneling,
875 # IPv4 over IPv6 tunneling, IPv4 over IPv4 tunneling and
876 # IPv6 over IPv6 tunneling.
877 # The `gre' device implements GRE (Generic Routing Encapsulation) tunneling,
878 # as specified in the RFC 2784 and RFC 2890.
879 # The `me' device implements Minimal Encapsulation within IPv4 as
880 # specified in the RFC 2004.
881 # The XBONEHACK option allows the same pair of addresses to be configured on
882 # multiple gif interfaces.
888 # The `faith' device captures packets sent to it and diverts them
889 # to the IPv4/IPv6 translation daemon.
890 # The `stf' device implements 6to4 encapsulation.
894 # The `ef' device provides support for multiple ethernet frame types
895 # specified via ETHER_* options. See ef(4) for details.
897 options ETHER_II # enable Ethernet_II frame
898 options ETHER_8023 # enable Ethernet_802.3 (Novell) frame
899 options ETHER_8022 # enable Ethernet_802.2 frame
900 options ETHER_SNAP # enable Ethernet_802.2/SNAP frame
902 # The pf packet filter consists of three devices:
903 # The `pf' device provides /dev/pf and the firewall code itself.
904 # The `pflog' device provides the pflog0 interface which logs packets.
905 # The `pfsync' device provides the pfsync0 interface used for
906 # synchronization of firewall state tables (over the net).
914 # Common Address Redundancy Protocol. See carp(4) for more details.
920 # Link aggregation interface.
924 # Internet family options:
926 # MROUTING enables the kernel multicast packet forwarder, which works
927 # with mrouted and XORP.
929 # IPFIREWALL enables support for IP firewall construction, in
930 # conjunction with the `ipfw' program. IPFIREWALL_VERBOSE sends
931 # logged packets to the system logger. IPFIREWALL_VERBOSE_LIMIT
932 # limits the number of times a matching entry can be logged.
934 # WARNING: IPFIREWALL defaults to a policy of "deny ip from any to any"
935 # and if you do not add other rules during startup to allow access,
936 # YOU WILL LOCK YOURSELF OUT. It is suggested that you set firewall_type=open
937 # in /etc/rc.conf when first enabling this feature, then refining the
938 # firewall rules in /etc/rc.firewall after you've tested that the new kernel
939 # feature works properly.
941 # IPFIREWALL_DEFAULT_TO_ACCEPT causes the default rule (at boot) to
942 # allow everything. Use with care, if a cracker can crash your
943 # firewall machine, they can get to your protected machines. However,
944 # if you are using it as an as-needed filter for specific problems as
945 # they arise, then this may be for you. Changing the default to 'allow'
946 # means that you won't get stuck if the kernel and /sbin/ipfw binary get
949 # IPDIVERT enables the divert IP sockets, used by ``ipfw divert''. It
950 # depends on IPFIREWALL if compiled into the kernel.
952 # IPFIREWALL_NAT adds support for in kernel nat in ipfw, and it requires
955 # IPSTEALTH enables code to support stealth forwarding (i.e., forwarding
956 # packets without touching the TTL). This can be useful to hide firewalls
957 # from traceroute and similar tools.
959 # PF_DEFAULT_TO_DROP causes the default pf(4) rule to deny everything.
961 # TCPDEBUG enables code which keeps traces of the TCP state machine
962 # for sockets with the SO_DEBUG option set, which can then be examined
963 # using the trpt(8) utility.
965 # RADIX_MPATH provides support for equal-cost multi-path routing.
967 options MROUTING # Multicast routing
968 options IPFIREWALL #firewall
969 options IPFIREWALL_VERBOSE #enable logging to syslogd(8)
970 options IPFIREWALL_VERBOSE_LIMIT=100 #limit verbosity
971 options IPFIREWALL_DEFAULT_TO_ACCEPT #allow everything by default
972 options IPFIREWALL_NAT #ipfw kernel nat support
973 options IPDIVERT #divert sockets
974 options IPFILTER #ipfilter support
975 options IPFILTER_LOG #ipfilter logging
976 options IPFILTER_LOOKUP #ipfilter pools
977 options IPFILTER_DEFAULT_BLOCK #block all packets by default
978 options IPSTEALTH #support for stealth forwarding
979 options PF_DEFAULT_TO_DROP #drop everything by default
983 # The MBUF_STRESS_TEST option enables options which create
984 # various random failures / extreme cases related to mbuf
985 # functions. See mbuf(9) for a list of available test cases.
986 # MBUF_PROFILING enables code to profile the mbuf chains
987 # exiting the system (via participating interfaces) and
988 # return a logarithmic histogram of monitored parameters
989 # (e.g. packet size, wasted space, number of mbufs in chain).
990 options MBUF_STRESS_TEST
991 options MBUF_PROFILING
993 # Statically link in accept filters
994 options ACCEPT_FILTER_DATA
995 options ACCEPT_FILTER_DNS
996 options ACCEPT_FILTER_HTTP
998 # TCP_SIGNATURE adds support for RFC 2385 (TCP-MD5) digests. These are
999 # carried in TCP option 19. This option is commonly used to protect
1000 # TCP sessions (e.g. BGP) where IPSEC is not available nor desirable.
1001 # This is enabled on a per-socket basis using the TCP_MD5SIG socket option.
1002 # This requires the use of 'device crypto', 'options IPSEC'
1003 # or 'device cryptodev'.
1004 options TCP_SIGNATURE #include support for RFC 2385
1006 # DUMMYNET enables the "dummynet" bandwidth limiter. You need IPFIREWALL
1007 # as well. See dummynet(4) and ipfw(8) for more info. When you run
1008 # DUMMYNET it is advisable to also have at least "options HZ=1000" to achieve
1009 # a smooth scheduling of the traffic.
1012 #####################################################################
1013 # FILESYSTEM OPTIONS
1016 # Only the root filesystem needs to be statically compiled or preloaded
1017 # as module; everything else will be automatically loaded at mount
1018 # time. Some people still prefer to statically compile other
1019 # filesystems as well.
1021 # NB: The UNION filesystem was known to be buggy in the past. It is now
1022 # being actively maintained, although there are still some issues being
1026 # One of these is mandatory:
1027 options FFS #Fast filesystem
1028 options NFSCLIENT #Network File System client
1030 # The rest are optional:
1031 options AUTOFS #Automounter filesystem
1032 options CD9660 #ISO 9660 filesystem
1033 options FDESCFS #File descriptor filesystem
1034 options FUSE #FUSE support module
1035 options MSDOSFS #MS DOS File System (FAT, FAT32)
1036 options NFSSERVER #Network File System server
1037 options NFSLOCKD #Network Lock Manager
1038 options NFSCL #New Network Filesystem Client
1039 options NFSD #New Network Filesystem Server
1040 options KGSSAPI #Kernel GSSAPI implementation
1042 options NULLFS #NULL filesystem
1043 options PROCFS #Process filesystem (requires PSEUDOFS)
1044 options PSEUDOFS #Pseudo-filesystem framework
1045 options PSEUDOFS_TRACE #Debugging support for PSEUDOFS
1046 options SMBFS #SMB/CIFS filesystem
1047 options TMPFS #Efficient memory filesystem
1048 options UDF #Universal Disk Format
1049 options UNIONFS #Union filesystem
1050 # The xFS_ROOT options REQUIRE the associated ``options xFS''
1051 options NFS_ROOT #NFS usable as root device
1053 # Soft updates is a technique for improving filesystem speed and
1054 # making abrupt shutdown less risky.
1058 # Extended attributes allow additional data to be associated with files,
1059 # and is used for ACLs, Capabilities, and MAC labels.
1060 # See src/sys/ufs/ufs/README.extattr for more information.
1062 options UFS_EXTATTR_AUTOSTART
1064 # Access Control List support for UFS filesystems. The current ACL
1065 # implementation requires extended attribute support, UFS_EXTATTR,
1066 # for the underlying filesystem.
1067 # See src/sys/ufs/ufs/README.acls for more information.
1070 # Directory hashing improves the speed of operations on very large
1071 # directories at the expense of some memory.
1074 # Gjournal-based UFS journaling support.
1075 options UFS_GJOURNAL
1077 # Make space in the kernel for a root filesystem on a md device.
1078 # Define to the number of kilobytes to reserve for the filesystem.
1079 options MD_ROOT_SIZE=10
1081 # Make the md device a potential root device, either with preloaded
1082 # images of type mfs_root or md_root.
1085 # Disk quotas are supported when this option is enabled.
1086 options QUOTA #enable disk quotas
1088 # If you are running a machine just as a fileserver for PC and MAC
1089 # users, using SAMBA or Netatalk, you may consider setting this option
1090 # and keeping all those users' directories on a filesystem that is
1091 # mounted with the suiddir option. This gives new files the same
1092 # ownership as the directory (similar to group). It's a security hole
1093 # if you let these users run programs, so confine it to file-servers
1094 # (but it'll save you lots of headaches in those cases). Root owned
1095 # directories are exempt and X bits are cleared. The suid bit must be
1096 # set on the directory as well; see chmod(1). PC owners can't see/set
1097 # ownerships so they keep getting their toes trodden on. This saves
1098 # you all the support calls as the filesystem it's used on will act as
1099 # they expect: "It's my dir so it must be my file".
1104 options NFS_MINATTRTIMO=3 # VREG attrib cache timeout in sec
1105 options NFS_MAXATTRTIMO=60
1106 options NFS_MINDIRATTRTIMO=30 # VDIR attrib cache timeout in sec
1107 options NFS_MAXDIRATTRTIMO=60
1108 options NFS_GATHERDELAY=10 # Default write gather delay (msec)
1109 options NFS_WDELAYHASHSIZ=16 # and with this
1110 options NFS_DEBUG # Enable NFS Debugging
1113 # Add support for the EXT2FS filesystem of Linux fame. Be a bit
1114 # careful with this - the ext2fs code has a tendency to lag behind
1115 # changes and not be exercised very much, so mounting read/write could
1116 # be dangerous (and even mounting read only could result in panics.)
1121 # Add support for the ReiserFS filesystem (used in Linux). Currently,
1122 # this is limited to read-only access.
1126 # Use real implementations of the aio_* system calls. There are numerous
1127 # stability and security issues in the current aio code that make it
1128 # unsuitable for inclusion on machines with untrusted local users.
1131 # Cryptographically secure random number generator; /dev/random
1134 # The system memory devices; /dev/mem, /dev/kmem
1137 # The kernel symbol table device; /dev/ksyms
1140 # Optional character code conversion support with LIBICONV.
1141 # Each option requires their base file system and LIBICONV.
1142 options CD9660_ICONV
1143 options MSDOSFS_ICONV
1147 #####################################################################
1150 # Real time extensions added in the 1993 POSIX
1151 # _KPOSIX_PRIORITY_SCHEDULING: Build in _POSIX_PRIORITY_SCHEDULING
1153 options _KPOSIX_PRIORITY_SCHEDULING
1154 # p1003_1b_semaphores are very experimental,
1155 # user should be ready to assist in debugging if problems arise.
1156 options P1003_1B_SEMAPHORES
1158 # POSIX message queue
1159 options P1003_1B_MQUEUE
1161 #####################################################################
1162 # SECURITY POLICY PARAMETERS
1164 # Support for BSM audit
1167 # Support for Mandatory Access Control (MAC):
1170 options MAC_BSDEXTENDED
1175 options MAC_PARTITION
1177 options MAC_SEEOTHERUIDS
1181 # Support for Capsicum
1182 options CAPABILITIES # fine-grained rights on file descriptors
1183 options CAPABILITY_MODE # sandboxes with no global namespace access
1185 # Support for process descriptors
1189 #####################################################################
1192 # The granularity of operation is controlled by the kernel option HZ whose
1193 # default value (1000 on most architectures) means a granularity of 1ms
1194 # (1s/HZ). Historically, the default was 100, but finer granularity is
1195 # required for DUMMYNET and other systems on modern hardware. There are
1196 # reasonable arguments that HZ should, in fact, be 100 still; consider,
1197 # that reducing the granularity too much might cause excessive overhead in
1198 # clock interrupt processing, potentially causing ticks to be missed and thus
1199 # actually reducing the accuracy of operation.
1203 # Enable support for the kernel PLL to use an external PPS signal,
1204 # under supervision of [x]ntpd(8)
1205 # More info in ntpd documentation: http://www.eecis.udel.edu/~ntp
1209 # Enable support for generic feed-forward clocks in the kernel.
1210 # The feed-forward clock support is an alternative to the feedback oriented
1211 # ntpd/system clock approach, and is to be used with a feed-forward
1212 # synchronization algorithm such as the RADclock:
1213 # More info here: http://www.synclab.org/radclock
1218 #####################################################################
1221 # SCSI DEVICE CONFIGURATION
1223 # The SCSI subsystem consists of the `base' SCSI code, a number of
1224 # high-level SCSI device `type' drivers, and the low-level host-adapter
1225 # device drivers. The host adapters are listed in the ISA and PCI
1226 # device configuration sections below.
1228 # It is possible to wire down your SCSI devices so that a given bus,
1229 # target, and LUN always come on line as the same device unit. In
1230 # earlier versions the unit numbers were assigned in the order that
1231 # the devices were probed on the SCSI bus. This means that if you
1232 # removed a disk drive, you may have had to rewrite your /etc/fstab
1233 # file, and also that you had to be careful when adding a new disk
1234 # as it may have been probed earlier and moved your device configuration
1235 # around. (See also option GEOM_VOL for a different solution to this
1238 # This old behavior is maintained as the default behavior. The unit
1239 # assignment begins with the first non-wired down unit for a device
1240 # type. For example, if you wire a disk as "da3" then the first
1241 # non-wired disk will be assigned da4.
1243 # The syntax for wiring down devices is:
1245 hint.scbus.0.at="ahc0"
1246 hint.scbus.1.at="ahc1"
1247 hint.scbus.1.bus="0"
1248 hint.scbus.3.at="ahc2"
1249 hint.scbus.3.bus="0"
1250 hint.scbus.2.at="ahc2"
1251 hint.scbus.2.bus="1"
1252 hint.da.0.at="scbus0"
1253 hint.da.0.target="0"
1255 hint.da.1.at="scbus3"
1256 hint.da.1.target="1"
1257 hint.da.2.at="scbus2"
1258 hint.da.2.target="3"
1259 hint.sa.1.at="scbus1"
1260 hint.sa.1.target="6"
1262 # "units" (SCSI logical unit number) that are not specified are
1263 # treated as if specified as LUN 0.
1265 # All SCSI devices allocate as many units as are required.
1267 # The ch driver drives SCSI Media Changer ("jukebox") devices.
1269 # The da driver drives SCSI Direct Access ("disk") and Optical Media
1272 # The sa driver drives SCSI Sequential Access ("tape") devices.
1274 # The cd driver drives SCSI Read Only Direct Access ("cd") devices.
1276 # The ses driver drives SCSI Environment Services ("ses") and
1277 # SAF-TE ("SCSI Accessible Fault-Tolerant Enclosure") devices.
1279 # The pt driver drives SCSI Processor devices.
1281 # The sg driver provides a passthrough API that is compatible with the
1282 # Linux SG driver. It will work in conjunction with the COMPAT_LINUX
1283 # option to run linux SG apps. It can also stand on its own and provide
1284 # source level API compatibility for porting apps to FreeBSD.
1286 # Target Mode support is provided here but also requires that a SIM
1287 # (SCSI Host Adapter Driver) provide support as well.
1289 # The targ driver provides target mode support as a Processor type device.
1290 # It exists to give the minimal context necessary to respond to Inquiry
1291 # commands. There is a sample user application that shows how the rest
1292 # of the command support might be done in /usr/share/examples/scsi_target.
1294 # The targbh driver provides target mode support and exists to respond
1295 # to incoming commands that do not otherwise have a logical unit assigned
1298 # The "unknown" device (uk? in pre-2.0.5) is now part of the base SCSI
1299 # configuration as the "pass" driver.
1301 device scbus #base SCSI code
1302 device ch #SCSI media changers
1303 device da #SCSI direct access devices (aka disks)
1304 device sa #SCSI tapes
1305 device cd #SCSI CD-ROMs
1306 device ses #Enclosure Services (SES and SAF-TE)
1307 device pt #SCSI processor
1308 device targ #SCSI Target Mode Code
1309 device targbh #SCSI Target Mode Blackhole Device
1310 device pass #CAM passthrough driver
1311 device sg #Linux SCSI passthrough
1312 device ctl #CAM Target Layer
1315 # debugging options:
1316 # CAMDEBUG Compile in all possible debugging.
1317 # CAM_DEBUG_COMPILE Debug levels to compile in.
1318 # CAM_DEBUG_FLAGS Debug levels to enable on boot.
1319 # CAM_DEBUG_BUS Limit debugging to the given bus.
1320 # CAM_DEBUG_TARGET Limit debugging to the given target.
1321 # CAM_DEBUG_LUN Limit debugging to the given lun.
1322 # CAM_DEBUG_DELAY Delay in us after printing each debug line.
1324 # CAM_MAX_HIGHPOWER: Maximum number of concurrent high power (start unit) cmds
1325 # SCSI_NO_SENSE_STRINGS: When defined disables sense descriptions
1326 # SCSI_NO_OP_STRINGS: When defined disables opcode descriptions
1327 # SCSI_DELAY: The number of MILLISECONDS to freeze the SIM (scsi adapter)
1328 # queue after a bus reset, and the number of milliseconds to
1329 # freeze the device queue after a bus device reset. This
1330 # can be changed at boot and runtime with the
1331 # kern.cam.scsi_delay tunable/sysctl.
1333 options CAM_DEBUG_COMPILE=-1
1334 options CAM_DEBUG_FLAGS=(CAM_DEBUG_INFO|CAM_DEBUG_PROBE|CAM_DEBUG_PERIPH)
1335 options CAM_DEBUG_BUS=-1
1336 options CAM_DEBUG_TARGET=-1
1337 options CAM_DEBUG_LUN=-1
1338 options CAM_DEBUG_DELAY=1
1339 options CAM_MAX_HIGHPOWER=4
1340 options SCSI_NO_SENSE_STRINGS
1341 options SCSI_NO_OP_STRINGS
1342 options SCSI_DELAY=5000 # Be pessimistic about Joe SCSI device
1344 # Options for the CAM CDROM driver:
1345 # CHANGER_MIN_BUSY_SECONDS: Guaranteed minimum time quantum for a changer LUN
1346 # CHANGER_MAX_BUSY_SECONDS: Maximum time quantum per changer LUN, only
1347 # enforced if there is I/O waiting for another LUN
1348 # The compiled in defaults for these variables are 2 and 10 seconds,
1351 # These can also be changed on the fly with the following sysctl variables:
1352 # kern.cam.cd.changer.min_busy_seconds
1353 # kern.cam.cd.changer.max_busy_seconds
1355 options CHANGER_MIN_BUSY_SECONDS=2
1356 options CHANGER_MAX_BUSY_SECONDS=10
1358 # Options for the CAM sequential access driver:
1359 # SA_IO_TIMEOUT: Timeout for read/write/wfm operations, in minutes
1360 # SA_SPACE_TIMEOUT: Timeout for space operations, in minutes
1361 # SA_REWIND_TIMEOUT: Timeout for rewind operations, in minutes
1362 # SA_ERASE_TIMEOUT: Timeout for erase operations, in minutes
1363 # SA_1FM_AT_EOD: Default to model which only has a default one filemark at EOT.
1364 options SA_IO_TIMEOUT=4
1365 options SA_SPACE_TIMEOUT=60
1366 options SA_REWIND_TIMEOUT=(2*60)
1367 options SA_ERASE_TIMEOUT=(4*60)
1368 options SA_1FM_AT_EOD
1370 # Optional timeout for the CAM processor target (pt) device
1371 # This is specified in seconds. The default is 60 seconds.
1372 options SCSI_PT_DEFAULT_TIMEOUT=60
1374 # Optional enable of doing SES passthrough on other devices (e.g., disks)
1376 # Normally disabled because a lot of newer SCSI disks report themselves
1377 # as having SES capabilities, but this can then clot up attempts to build
1378 # a topology with the SES device that's on the box these drives are in....
1379 options SES_ENABLE_PASSTHROUGH
1382 #####################################################################
1383 # MISCELLANEOUS DEVICES AND OPTIONS
1385 device pty #BSD-style compatibility pseudo ttys
1386 device nmdm #back-to-back tty devices
1387 device md #Memory/malloc disk
1388 device snp #Snoop device - to look at pty/vty/etc..
1389 device ccd #Concatenated disk driver
1390 device firmware #firmware(9) support
1392 # Kernel side iconv library
1395 # Size of the kernel message buffer. Should be N * pagesize.
1396 options MSGBUF_SIZE=40960
1399 #####################################################################
1400 # HARDWARE DEVICE CONFIGURATION
1402 # For ISA the required hints are listed.
1403 # EISA, MCA, PCI, CardBus, SD/MMC and pccard are self identifying buses, so
1404 # no hints are needed.
1407 # Mandatory devices:
1410 # These options are valid for other keyboard drivers as well.
1411 options KBD_DISABLE_KEYMAP_LOAD # refuse to load a keymap
1412 options KBD_INSTALL_CDEV # install a CDEV entry in /dev
1414 options FB_DEBUG # Frame buffer debugging
1416 device splash # Splash screen and screen saver support
1418 # Various screen savers.
1431 # The syscons console driver (SCO color console compatible).
1434 options MAXCONS=16 # number of virtual consoles
1435 options SC_ALT_MOUSE_IMAGE # simplified mouse cursor in text mode
1436 options SC_DFLT_FONT # compile font in
1437 makeoptions SC_DFLT_FONT=cp850
1438 options SC_DISABLE_KDBKEY # disable `debug' key
1439 options SC_DISABLE_REBOOT # disable reboot key sequence
1440 options SC_HISTORY_SIZE=200 # number of history buffer lines
1441 options SC_MOUSE_CHAR=0x3 # char code for text mode mouse cursor
1442 options SC_PIXEL_MODE # add support for the raster text mode
1444 # The following options will let you change the default colors of syscons.
1445 options SC_NORM_ATTR=(FG_GREEN|BG_BLACK)
1446 options SC_NORM_REV_ATTR=(FG_YELLOW|BG_GREEN)
1447 options SC_KERNEL_CONS_ATTR=(FG_RED|BG_BLACK)
1448 options SC_KERNEL_CONS_REV_ATTR=(FG_BLACK|BG_RED)
1450 # The following options will let you change the default behavior of
1451 # cut-n-paste feature
1452 options SC_CUT_SPACES2TABS # convert leading spaces into tabs
1453 options SC_CUT_SEPCHARS=\"x09\" # set of characters that delimit words
1454 # (default is single space - \"x20\")
1456 # If you have a two button mouse, you may want to add the following option
1457 # to use the right button of the mouse to paste text.
1458 options SC_TWOBUTTON_MOUSE
1460 # You can selectively disable features in syscons.
1461 options SC_NO_CUTPASTE
1462 options SC_NO_FONT_LOADING
1463 options SC_NO_HISTORY
1464 options SC_NO_MODE_CHANGE
1465 options SC_NO_SYSMOUSE
1466 options SC_NO_SUSPEND_VTYSWITCH
1469 # 0x80 Put the video card in the VESA 800x600 dots, 16 color mode
1470 # 0x100 Probe for a keyboard device periodically if one is not present
1472 # Enable experimental features of the syscons terminal emulator (teken).
1473 options TEKEN_CONS25 # cons25-style terminal emulation
1474 options TEKEN_UTF8 # UTF-8 output handling
1481 # SCSI host adapters:
1483 # adv: All Narrow SCSI bus AdvanSys controllers.
1484 # adw: Second Generation AdvanSys controllers including the ADV940UW.
1485 # aha: Adaptec 154x/1535/1640
1486 # ahb: Adaptec 174x EISA controllers
1487 # ahc: Adaptec 274x/284x/2910/293x/294x/394x/3950x/3960x/398X/4944/
1488 # 19160x/29160x, aic7770/aic78xx
1489 # ahd: Adaptec 29320/39320 Controllers.
1490 # aic: Adaptec 6260/6360, APA-1460 (PC Card), NEC PC9801-100 (C-BUS)
1491 # bt: Most Buslogic controllers: including BT-445, BT-54x, BT-64x, BT-74x,
1492 # BT-75x, BT-946, BT-948, BT-956, BT-958, SDC3211B, SDC3211F, SDC3222F
1493 # esp: Emulex ESP, NCR 53C9x and QLogic FAS families based controllers
1494 # including the AMD Am53C974 (found on devices such as the Tekram
1495 # DC-390(T)) and the Sun ESP and FAS families of controllers
1496 # isp: Qlogic ISP 1020, 1040 and 1040B PCI SCSI host adapters,
1497 # ISP 1240 Dual Ultra SCSI, ISP 1080 and 1280 (Dual) Ultra2,
1498 # ISP 12160 Ultra3 SCSI,
1499 # Qlogic ISP 2100 and ISP 2200 1Gb Fibre Channel host adapters.
1500 # Qlogic ISP 2300 and ISP 2312 2Gb Fibre Channel host adapters.
1501 # Qlogic ISP 2322 and ISP 6322 2Gb Fibre Channel host adapters.
1502 # ispfw: Firmware module for Qlogic host adapters
1503 # mpt: LSI-Logic MPT/Fusion 53c1020 or 53c1030 Ultra4
1504 # or FC9x9 Fibre Channel host adapters.
1505 # ncr: NCR 53C810, 53C825 self-contained SCSI host adapters.
1506 # sym: Symbios/Logic 53C8XX family of PCI-SCSI I/O processors:
1507 # 53C810, 53C810A, 53C815, 53C825, 53C825A, 53C860, 53C875,
1508 # 53C876, 53C885, 53C895, 53C895A, 53C896, 53C897, 53C1510D,
1509 # 53C1010-33, 53C1010-66.
1510 # trm: Tekram DC395U/UW/F DC315U adapters.
1514 # Note that the order is important in order for Buslogic ISA/EISA cards to be
1519 hint.bt.0.port="0x330"
1531 device iscsi_initiator
1533 hint.isp.0.disable="1"
1535 hint.isp.0.prefer_iomap="1"
1536 hint.isp.0.prefer_memmap="1"
1537 hint.isp.0.fwload_disable="1"
1538 hint.isp.0.ignore_nvram="1"
1539 hint.isp.0.fullduplex="1"
1540 hint.isp.0.topology="lport"
1541 hint.isp.0.topology="nport"
1542 hint.isp.0.topology="lport-only"
1543 hint.isp.0.topology="nport-only"
1544 # we can't get u_int64_t types, nor can we get strings if it's got
1545 # a leading 0x, hence this silly dodge.
1546 hint.isp.0.portwnn="w50000000aaaa0000"
1547 hint.isp.0.nodewnn="w50000000aaaa0001"
1555 hint.wds.0.port="0x350"
1559 # The aic7xxx driver will attempt to use memory mapped I/O for all PCI
1560 # controllers that have it configured only if this option is set. Unfortunately,
1561 # this doesn't work on some motherboards, which prevents it from being the
1563 options AHC_ALLOW_MEMIO
1565 # Dump the contents of the ahc controller configuration PROM.
1566 options AHC_DUMP_EEPROM
1568 # Bitmap of units to enable targetmode operations.
1569 options AHC_TMODE_ENABLE
1571 # Compile in Aic7xxx Debugging code.
1574 # Aic7xxx driver debugging options. See sys/dev/aic7xxx/aic7xxx.h
1575 options AHC_DEBUG_OPTS
1577 # Print register bitfields in debug output. Adds ~128k to driver
1579 options AHC_REG_PRETTY_PRINT
1581 # Compile in aic79xx debugging code.
1584 # Aic79xx driver debugging options. Adds ~215k to driver. See ahd(4).
1585 options AHD_DEBUG_OPTS=0xFFFFFFFF
1587 # Print human-readable register definitions when debugging
1588 options AHD_REG_PRETTY_PRINT
1590 # Bitmap of units to enable targetmode operations.
1591 options AHD_TMODE_ENABLE
1593 # The adw driver will attempt to use memory mapped I/O for all PCI
1594 # controllers that have it configured only if this option is set.
1595 options ADW_ALLOW_MEMIO
1597 # Options used in dev/iscsi (Software iSCSI stack)
1599 options ISCSI_INITIATOR_DEBUG=9
1601 # Options used in dev/isp/ (Qlogic SCSI/FC driver).
1603 # ISP_TARGET_MODE - enable target mode operation
1605 options ISP_TARGET_MODE=1
1607 # ISP_DEFAULT_ROLES - default role
1611 # both=3 (not supported currently)
1613 # ISP_INTERNAL_TARGET (trivial internal disk target, for testing)
1615 options ISP_DEFAULT_ROLES=0
1617 # Options used in dev/sym/ (Symbios SCSI driver).
1618 #options SYM_SETUP_LP_PROBE_MAP #-Low Priority Probe Map (bits)
1619 # Allows the ncr to take precedence
1620 # 1 (1<<0) -> 810a, 860
1621 # 2 (1<<1) -> 825a, 875, 885, 895
1622 # 4 (1<<2) -> 895a, 896, 1510d
1623 #options SYM_SETUP_SCSI_DIFF #-HVD support for 825a, 875, 885
1624 # disabled:0 (default), enabled:1
1625 #options SYM_SETUP_PCI_PARITY #-PCI parity checking
1626 # disabled:0, enabled:1 (default)
1627 #options SYM_SETUP_MAX_LUN #-Number of LUNs supported
1628 # default:8, range:[1..64]
1630 # The 'dpt' driver provides support for old DPT controllers (http://www.dpt.com/).
1631 # These have hardware RAID-{0,1,5} support, and do multi-initiator I/O.
1632 # The DPT controllers are commonly re-licensed under other brand-names -
1633 # some controllers by Olivetti, Dec, HP, AT&T, SNI, AST, Alphatronic, NEC and
1634 # Compaq are actually DPT controllers.
1636 # See src/sys/dev/dpt for debugging and other subtle options.
1637 # DPT_MEASURE_PERFORMANCE Enables a set of (semi)invasive metrics. Various
1638 # instruments are enabled. The tools in
1639 # /usr/sbin/dpt_* assume these to be enabled.
1640 # DPT_DEBUG_xxxx These are controllable from sys/dev/dpt/dpt.h
1641 # DPT_RESET_HBA Make "reset" actually reset the controller
1642 # instead of fudging it. Only enable this if you
1643 # are 100% certain you need it.
1648 #!CAM# options DPT_MEASURE_PERFORMANCE
1649 options DPT_RESET_HBA
1652 # Compaq "CISS" RAID controllers (SmartRAID 5* series)
1653 # These controllers have a SCSI-like interface, and require the
1654 # CAM infrastructure.
1659 # Intel Integrated RAID controllers.
1660 # This driver was developed and is maintained by Intel. Contacts
1661 # at Intel for this driver are
1662 # "Kannanthanam, Boji T" <boji.t.kannanthanam@intel.com> and
1663 # "Leubner, Achim" <achim.leubner@intel.com>.
1668 # Mylex AcceleRAID and eXtremeRAID controllers with v6 and later
1669 # firmware. These controllers have a SCSI-like interface, and require
1670 # the CAM infrastructure.
1675 # Compaq Smart RAID, Mylex DAC960 and AMI MegaRAID controllers. Only
1676 # one entry is needed; the code will find and configure all supported
1679 device ida # Compaq Smart RAID
1680 device mlx # Mylex DAC960
1681 device amr # AMI MegaRAID
1682 device amrp # SCSI Passthrough interface (optional, CAM req.)
1683 device mfi # LSI MegaRAID SAS
1684 device mfip # LSI MegaRAID SAS passthrough, requires CAM
1686 device mrsas # LSI/Avago MegaRAID SAS/SATA, 6Gb/s and 12Gb/s
1691 device twe # 3ware ATA RAID
1694 # Serial ATA host controllers:
1696 # ahci: Advanced Host Controller Interface (AHCI) compatible
1697 # mvs: Marvell 88SX50XX/88SX60XX/88SX70XX/SoC controllers
1698 # siis: SiliconImage SiI3124/SiI3132/SiI3531 controllers
1700 # These drivers are part of cam(4) subsystem. They supersede less featured
1701 # ata(4) subsystem drivers, supporting same hardware.
1708 # The 'ATA' driver supports all legacy ATA/ATAPI controllers, including
1709 # PC Card devices. You only need one "device ata" for it to find all
1710 # PCI and PC Card ATA/ATAPI devices on modern machines.
1711 # Alternatively, individual bus and chipset drivers may be chosen by using
1712 # the 'atacore' driver then selecting the drivers on a per vendor basis.
1713 # For example to build a system which only supports a VIA chipset,
1714 # omit 'ata' and include the 'atacore', 'atapci' and 'atavia' drivers.
1718 #device atacore # Core ATA functionality
1719 #device atacard # CARDBUS support
1720 #device atabus # PC98 cbus support
1721 #device ataisa # ISA bus support
1722 #device atapci # PCI bus support; only generic chipset support
1725 #device ataacard # ACARD
1726 #device ataacerlabs # Acer Labs Inc. (ALI)
1727 #device ataamd # American Micro Devices (AMD)
1728 #device ataati # ATI
1729 #device atacenatek # Cenatek
1730 #device atacypress # Cypress
1731 #device atacyrix # Cyrix
1732 #device atahighpoint # HighPoint
1733 #device ataintel # Intel
1734 #device ataite # Integrated Technology Inc. (ITE)
1735 #device atajmicron # JMicron
1736 #device atamarvell # Marvell
1737 #device atamicron # Micron
1738 #device atanational # National
1739 #device atanetcell # NetCell
1740 #device atanvidia # nVidia
1741 #device atapromise # Promise
1742 #device ataserverworks # ServerWorks
1743 #device atasiliconimage # Silicon Image Inc. (SiI) (formerly CMD)
1744 #device atasis # Silicon Integrated Systems Corp.(SiS)
1745 #device atavia # VIA Technologies Inc.
1748 # For older non-PCI, non-PnPBIOS systems, these are the hints lines to add:
1750 hint.ata.0.port="0x1f0"
1753 hint.ata.1.port="0x170"
1757 # The following options are valid on the ATA driver:
1759 # ATA_STATIC_ID: controller numbering is static ie depends on location
1760 # else the device numbers are dynamically allocated.
1761 # ATA_REQUEST_TIMEOUT: the number of seconds to wait for an ATA request
1762 # before timing out.
1764 options ATA_STATIC_ID
1765 #options ATA_REQUEST_TIMEOUT=10
1768 # Standard floppy disk controllers and floppy tapes, supports
1769 # the Y-E DATA External FDD (PC Card)
1773 hint.fdc.0.port="0x3F0"
1777 # FDC_DEBUG enables floppy debugging. Since the debug output is huge, you
1778 # gotta turn it actually on by setting the variable fd_debug with DDB,
1782 # Activate this line if you happen to have an Insight floppy tape.
1783 # Probing them proved to be dangerous for people with floppy disks only,
1784 # so it's "hidden" behind a flag:
1785 #hint.fdc.0.flags="1"
1787 # Specify floppy devices
1794 # uart: newbusified driver for serial interfaces. It consolidates the sio(4),
1795 # sab(4) and zs(4) drivers.
1799 # Options for uart(4)
1800 options UART_PPS_ON_CTS # Do time pulse capturing using CTS
1802 options UART_POLL_FREQ # Set polling rate, used when hw has
1803 # no interrupt support (50 Hz default).
1805 # The following hint should only be used for pure ISA devices. It is not
1806 # needed otherwise. Use of hints is strongly discouraged.
1807 hint.uart.0.at="isa"
1809 # The following 3 hints are used when the UART is a system device (i.e., a
1810 # console or debug port), but only on platforms that don't have any other
1811 # means to pass the information to the kernel. The unit number of the hint
1812 # is only used to bundle the hints together. There is no relation to the
1813 # unit number of the probed UART.
1814 hint.uart.0.port="0x3f8"
1815 hint.uart.0.flags="0x10"
1816 hint.uart.0.baud="115200"
1818 # `flags' for serial drivers that support consoles like sio(4) and uart(4):
1819 # 0x10 enable console support for this unit. Other console flags
1820 # (if applicable) are ignored unless this is set. Enabling
1821 # console support does not make the unit the preferred console.
1822 # Boot with -h or set boot_serial=YES in the loader. For sio(4)
1823 # specifically, the 0x20 flag can also be set (see above).
1824 # Currently, at most one unit can have console support; the
1825 # first one (in config file order) with this flag set is
1826 # preferred. Setting this flag for sio0 gives the old behavior.
1827 # 0x80 use this port for serial line gdb support in ddb. Also known
1831 # Options for serial drivers that support consoles:
1832 options BREAK_TO_DEBUGGER # A BREAK on a serial console goes to
1833 # ddb, if available.
1835 # Solaris implements a new BREAK which is initiated by a character
1836 # sequence CR ~ ^b which is similar to a familiar pattern used on
1837 # Sun servers by the Remote Console. There are FreeBSD extensions:
1838 # CR ~ ^p requests force panic and CR ~ ^r requests a clean reboot.
1839 options ALT_BREAK_TO_DEBUGGER
1841 # Serial Communications Controller
1842 # Supports the Siemens SAB 82532 and Zilog Z8530 multi-channel
1843 # communications controllers.
1846 # PCI Universal Communications driver
1847 # Supports various multi port PCI I/O cards.
1851 # Network interfaces:
1853 # MII bus support is required for many PCI Ethernet NICs,
1854 # namely those which use MII-compliant transceivers or implement
1855 # transceiver control interfaces that operate like an MII. Adding
1856 # "device miibus" to the kernel config pulls in support for the generic
1857 # miibus API, the common support for for bit-bang'ing the MII and all
1858 # of the PHY drivers, including a generic one for PHYs that aren't
1859 # specifically handled by an individual driver. Support for specific
1860 # PHYs may be built by adding "device mii", "device mii_bitbang" if
1861 # needed by the NIC driver and then adding the appropriate PHY driver.
1862 device mii # Minimal MII support
1863 device mii_bitbang # Common module for bit-bang'ing the MII
1864 device miibus # MII support w/ bit-bang'ing and all PHYs
1866 device acphy # Altima Communications AC101
1867 device amphy # AMD AM79c873 / Davicom DM910{1,2}
1868 device atphy # Attansic/Atheros F1
1869 device axphy # Asix Semiconductor AX88x9x
1870 device bmtphy # Broadcom BCM5201/BCM5202 and 3Com 3c905C
1871 device brgphy # Broadcom BCM54xx/57xx 1000baseTX
1872 device ciphy # Cicada/Vitesse CS/VSC8xxx
1873 device e1000phy # Marvell 88E1000 1000/100/10-BT
1874 device gentbi # Generic 10-bit 1000BASE-{LX,SX} fiber ifaces
1875 device icsphy # ICS ICS1889-1893
1876 device ip1000phy # IC Plus IP1000A/IP1001
1877 device jmphy # JMicron JMP211/JMP202
1878 device lxtphy # Level One LXT-970
1879 device mlphy # Micro Linear 6692
1880 device nsgphy # NatSemi DP8361/DP83865/DP83891
1881 device nsphy # NatSemi DP83840A
1882 device nsphyter # NatSemi DP83843/DP83815
1883 device pnaphy # HomePNA
1884 device qsphy # Quality Semiconductor QS6612
1885 device rdcphy # RDC Semiconductor R6040
1886 device rgephy # RealTek 8169S/8110S/8211B/8211C
1887 device rlphy # RealTek 8139
1888 device rlswitch # RealTek 8305
1889 device smcphy # SMSC LAN91C111
1890 device tdkphy # TDK 89Q2120
1891 device tlphy # Texas Instruments ThunderLAN
1892 device truephy # LSI TruePHY
1893 device xmphy # XaQti XMAC II
1895 # an: Aironet 4500/4800 802.11 wireless adapters. Supports the PCMCIA,
1896 # PCI and ISA varieties.
1897 # ae: Support for gigabit ethernet adapters based on the Attansic/Atheros
1898 # L2 PCI-Express FastEthernet controllers.
1899 # age: Support for gigabit ethernet adapters based on the Attansic/Atheros
1900 # L1 PCI express gigabit ethernet controllers.
1901 # alc: Support for Atheros AR8131/AR8132 PCIe ethernet controllers.
1902 # ale: Support for Atheros AR8121/AR8113/AR8114 PCIe ethernet controllers.
1903 # ath: Atheros a/b/g WiFi adapters (requires ath_hal and wlan)
1904 # bce: Broadcom NetXtreme II (BCM5706/BCM5708) PCI/PCIe Gigabit Ethernet
1906 # bfe: Broadcom BCM4401 Ethernet adapter.
1907 # bge: Support for gigabit ethernet adapters based on the Broadcom
1908 # BCM570x family of controllers, including the 3Com 3c996-T,
1909 # the Netgear GA302T, the SysKonnect SK-9D21 and SK-9D41, and
1910 # the embedded gigE NICs on Dell PowerEdge 2550 servers.
1911 # bxe: Broadcom NetXtreme II (BCM5771X/BCM578XX) PCIe 10Gb Ethernet
1913 # bwi: Broadcom BCM430* and BCM431* family of wireless adapters.
1914 # bwn: Broadcom BCM43xx family of wireless adapters.
1915 # cas: Sun Cassini/Cassini+ and National Semiconductor DP83065 Saturn
1916 # cm: Arcnet SMC COM90c26 / SMC COM90c56
1917 # (and SMC COM90c66 in '56 compatibility mode) adapters.
1918 # cxgb: Chelsio T3 based 1GbE/10GbE PCIe Ethernet adapters.
1919 # cxgbe:Chelsio T4 and T5 based 1GbE/10GbE/40GbE PCIe Ethernet adapters.
1920 # dc: Support for PCI fast ethernet adapters based on the DEC/Intel 21143
1921 # and various workalikes including:
1922 # the ADMtek AL981 Comet and AN985 Centaur, the ASIX Electronics
1923 # AX88140A and AX88141, the Davicom DM9100 and DM9102, the Lite-On
1924 # 82c168 and 82c169 PNIC, the Lite-On/Macronix LC82C115 PNIC II
1925 # and the Macronix 98713/98713A/98715/98715A/98725 PMAC. This driver
1926 # replaces the old al, ax, dm, pn and mx drivers. List of brands:
1927 # Digital DE500-BA, Kingston KNE100TX, D-Link DFE-570TX, SOHOware SFA110,
1928 # SVEC PN102-TX, CNet Pro110B, 120A, and 120B, Compex RL100-TX,
1929 # LinkSys LNE100TX, LNE100TX V2.0, Jaton XpressNet, Alfa Inc GFC2204,
1931 # de: Digital Equipment DC21040
1932 # em: Intel Pro/1000 Gigabit Ethernet 82542, 82543, 82544 based adapters.
1933 # igb: Intel Pro/1000 PCI Express Gigabit Ethernet: 82575 and later adapters.
1934 # ep: 3Com 3C509, 3C529, 3C556, 3C562D, 3C563D, 3C572, 3C574X, 3C579, 3C589
1935 # and PC Card devices using these chipsets.
1936 # ex: Intel EtherExpress Pro/10 and other i82595-based adapters,
1937 # Olicom Ethernet PC Card devices.
1938 # fe: Fujitsu MB86960A/MB86965A Ethernet
1939 # fea: DEC DEFEA EISA FDDI adapter
1940 # fpa: Support for the Digital DEFPA PCI FDDI. `device fddi' is also needed.
1941 # fxp: Intel EtherExpress Pro/100B
1942 # (hint of prefer_iomap can be done to prefer I/O instead of Mem mapping)
1943 # gem: Apple GMAC/Sun ERI/Sun GEM
1944 # hme: Sun HME (Happy Meal Ethernet)
1945 # jme: JMicron JMC260 Fast Ethernet/JMC250 Gigabit Ethernet based adapters.
1946 # le: AMD Am7900 LANCE and Am79C9xx PCnet
1947 # lge: Support for PCI gigabit ethernet adapters based on the Level 1
1948 # LXT1001 NetCellerator chipset. This includes the D-Link DGE-500SX,
1949 # SMC TigerCard 1000 (SMC9462SX), and some Addtron cards.
1950 # malo: Marvell Libertas wireless NICs.
1951 # mwl: Marvell 88W8363 802.11n wireless NICs.
1952 # Requires the mwl firmware module
1953 # mwlfw: Marvell 88W8363 firmware
1954 # msk: Support for gigabit ethernet adapters based on the Marvell/SysKonnect
1955 # Yukon II Gigabit controllers, including 88E8021, 88E8022, 88E8061,
1956 # 88E8062, 88E8035, 88E8036, 88E8038, 88E8050, 88E8052, 88E8053,
1957 # 88E8055, 88E8056 and D-Link 560T/550SX.
1958 # lmc: Support for the LMC/SBE wide-area network interface cards.
1959 # mlx5: Mellanox ConnectX-4 and ConnectX-4 LX IB and Eth shared code module.
1960 # mlx5en:Mellanox ConnectX-4 and ConnectX-4 LX PCIe Ethernet adapters.
1961 # my: Myson Fast Ethernet (MTD80X, MTD89X)
1962 # nge: Support for PCI gigabit ethernet adapters based on the National
1963 # Semiconductor DP83820 and DP83821 chipset. This includes the
1964 # SMC EZ Card 1000 (SMC9462TX), D-Link DGE-500T, Asante FriendlyNet
1965 # GigaNIX 1000TA and 1000TPC, the Addtron AEG320T, the Surecom
1966 # EP-320G-TX and the Netgear GA622T.
1967 # oce: Emulex 10 Gbit adapters (OneConnect Ethernet)
1968 # pcn: Support for PCI fast ethernet adapters based on the AMD Am79c97x
1969 # PCnet-FAST, PCnet-FAST+, PCnet-FAST III, PCnet-PRO and PCnet-Home
1970 # chipsets. These can also be handled by the le(4) driver if the
1971 # pcn(4) driver is left out of the kernel. The le(4) driver does not
1972 # support the additional features like the MII bus and burst mode of
1973 # the PCnet-FAST and greater chipsets though.
1974 # ral: Ralink Technology IEEE 802.11 wireless adapter
1975 # re: RealTek 8139C+/8169/816xS/811xS/8101E PCI/PCIe Ethernet adapter
1976 # rl: Support for PCI fast ethernet adapters based on the RealTek 8129/8139
1977 # chipset. Note that the RealTek driver defaults to using programmed
1978 # I/O to do register accesses because memory mapped mode seems to cause
1979 # severe lockups on SMP hardware. This driver also supports the
1980 # Accton EN1207D `Cheetah' adapter, which uses a chip called
1981 # the MPX 5030/5038, which is either a RealTek in disguise or a
1982 # RealTek workalike. Note that the D-Link DFE-530TX+ uses the RealTek
1983 # chipset and is supported by this driver, not the 'vr' driver.
1984 # sf: Support for Adaptec Duralink PCI fast ethernet adapters based on the
1985 # Adaptec AIC-6915 "starfire" controller.
1986 # This includes dual and quad port cards, as well as one 100baseFX card.
1987 # Most of these are 64-bit PCI devices, except for one single port
1988 # card which is 32-bit.
1989 # sge: Silicon Integrated Systems SiS190/191 Fast/Gigabit Ethernet adapter
1990 # sis: Support for NICs based on the Silicon Integrated Systems SiS 900,
1991 # SiS 7016 and NS DP83815 PCI fast ethernet controller chips.
1992 # sk: Support for the SysKonnect SK-984x series PCI gigabit ethernet NICs.
1993 # This includes the SK-9841 and SK-9842 single port cards (single mode
1994 # and multimode fiber) and the SK-9843 and SK-9844 dual port cards
1995 # (also single mode and multimode).
1996 # The driver will autodetect the number of ports on the card and
1997 # attach each one as a separate network interface.
1998 # sn: Support for ISA and PC Card Ethernet devices using the
1999 # SMC91C90/92/94/95 chips.
2000 # ste: Sundance Technologies ST201 PCI fast ethernet controller, includes
2001 # the D-Link DFE-550TX.
2002 # stge: Support for gigabit ethernet adapters based on the Sundance/Tamarack
2003 # TC9021 family of controllers, including the Sundance ST2021/ST2023,
2004 # the Sundance/Tamarack TC9021, the D-Link DL-4000 and ASUS NX1101.
2005 # ti: Support for PCI gigabit ethernet NICs based on the Alteon Networks
2006 # Tigon 1 and Tigon 2 chipsets. This includes the Alteon AceNIC, the
2007 # 3Com 3c985, the Netgear GA620 and various others. Note that you will
2008 # probably want to bump up kern.ipc.nmbclusters a lot to use this driver.
2009 # tl: Support for the Texas Instruments TNETE100 series 'ThunderLAN'
2010 # cards and integrated ethernet controllers. This includes several
2011 # Compaq Netelligent 10/100 cards and the built-in ethernet controllers
2012 # in several Compaq Prosignia, Proliant and Deskpro systems. It also
2013 # supports several Olicom 10Mbps and 10/100 boards.
2014 # tx: SMC 9432 TX, BTX and FTX cards. (SMC EtherPower II series)
2015 # txp: Support for 3Com 3cR990 cards with the "Typhoon" chipset
2016 # vr: Support for various fast ethernet adapters based on the VIA
2017 # Technologies VT3043 `Rhine I' and VT86C100A `Rhine II' chips,
2018 # including the D-Link DFE520TX and D-Link DFE530TX (see 'rl' for
2019 # DFE530TX+), the Hawking Technologies PN102TX, and the AOpen/Acer ALN-320.
2020 # vte: DM&P Vortex86 RDC R6040 Fast Ethernet
2021 # vx: 3Com 3C590 and 3C595
2022 # wb: Support for fast ethernet adapters based on the Winbond W89C840F chip.
2023 # Note: this is not the same as the Winbond W89C940F, which is a
2025 # wi: Lucent WaveLAN/IEEE 802.11 PCMCIA adapters. Note: this supports both
2026 # the PCMCIA and ISA cards: the ISA card is really a PCMCIA to ISA
2027 # bridge with a PCMCIA adapter plugged into it.
2028 # xe: Xircom/Intel EtherExpress Pro100/16 PC Card ethernet controller,
2029 # Accton Fast EtherCard-16, Compaq Netelligent 10/100 PC Card,
2030 # Toshiba 10/100 Ethernet PC Card, Xircom 16-bit Ethernet + Modem 56
2031 # xl: Support for the 3Com 3c900, 3c905, 3c905B and 3c905C (Fast)
2032 # Etherlink XL cards and integrated controllers. This includes the
2033 # integrated 3c905B-TX chips in certain Dell Optiplex and Dell
2034 # Precision desktop machines and the integrated 3c905-TX chips
2035 # in Dell Latitude laptop docking stations.
2036 # Also supported: 3Com 3c980(C)-TX, 3Com 3cSOHO100-TX, 3Com 3c450-TX
2038 # Order for ISA/EISA devices is important here
2042 hint.cm.0.port="0x2e0"
2044 hint.cm.0.maddr="0xdc000"
2049 hint.fe.0.port="0x300"
2053 hint.sn.0.port="0x300"
2059 # PCI Ethernet NICs that use the common MII bus controller code.
2060 device ae # Attansic/Atheros L2 FastEthernet
2061 device age # Attansic/Atheros L1 Gigabit Ethernet
2062 device alc # Atheros AR8131/AR8132 Ethernet
2063 device ale # Atheros AR8121/AR8113/AR8114 Ethernet
2064 device bce # Broadcom BCM5706/BCM5708 Gigabit Ethernet
2065 device bfe # Broadcom BCM440x 10/100 Ethernet
2066 device bge # Broadcom BCM570xx Gigabit Ethernet
2067 device cas # Sun Cassini/Cassini+ and NS DP83065 Saturn
2068 device cxgb # Chelsio T3 10 Gigabit Ethernet
2069 device cxgb_t3fw # Chelsio T3 10 Gigabit Ethernet firmware
2070 device cxgbe # Chelsio T4 and T5 1GbE/10GbE/40GbE
2071 device dc # DEC/Intel 21143 and various workalikes
2072 device et # Agere ET1310 10/100/Gigabit Ethernet
2073 device fxp # Intel EtherExpress PRO/100B (82557, 82558)
2074 hint.fxp.0.prefer_iomap="0"
2075 device gem # Apple GMAC/Sun ERI/Sun GEM
2076 device hme # Sun HME (Happy Meal Ethernet)
2077 device jme # JMicron JMC250 Gigabit/JMC260 Fast Ethernet
2078 device lge # Level 1 LXT1001 gigabit Ethernet
2079 #device mlx5 # Shared code module between IB and Ethernet
2080 #device mlx5en # Mellanox ConnectX-4 and ConnectX-4 LX
2081 device msk # Marvell/SysKonnect Yukon II Gigabit Ethernet
2082 device my # Myson Fast Ethernet (MTD80X, MTD89X)
2083 device nge # NatSemi DP83820 gigabit Ethernet
2084 device re # RealTek 8139C+/8169/8169S/8110S
2085 device rl # RealTek 8129/8139
2086 device pcn # AMD Am79C97x PCI 10/100 NICs
2087 device sf # Adaptec AIC-6915 (``Starfire'')
2088 device sge # Silicon Integrated Systems SiS190/191
2089 device sis # Silicon Integrated Systems SiS 900/SiS 7016
2090 device sk # SysKonnect SK-984x & SK-982x gigabit Ethernet
2091 device ste # Sundance ST201 (D-Link DFE-550TX)
2092 device stge # Sundance/Tamarack TC9021 gigabit Ethernet
2093 device tl # Texas Instruments ThunderLAN
2094 device tx # SMC EtherPower II (83c170 ``EPIC'')
2095 device vr # VIA Rhine, Rhine II
2096 device vte # DM&P Vortex86 RDC R6040 Fast Ethernet
2097 device wb # Winbond W89C840F
2098 device xl # 3Com 3c90x (``Boomerang'', ``Cyclone'')
2100 # PCI Ethernet NICs.
2101 device de # DEC/Intel DC21x4x (``Tulip'')
2102 device em # Intel Pro/1000 Gigabit Ethernet
2103 device igb # Intel Pro/1000 PCIE Gigabit Ethernet
2104 device ixgb # Intel Pro/10Gbe PCI-X Ethernet
2105 device ix # Intel Pro/10Gbe PCIE Ethernet
2106 device ixv # Intel Pro/10Gbe PCIE Ethernet VF
2107 device le # AMD Am7900 LANCE and Am79C9xx PCnet
2108 device mxge # Myricom Myri-10G 10GbE NIC
2109 device nxge # Neterion Xframe 10GbE Server/Storage Adapter
2110 device oce # Emulex 10 GbE (OneConnect Ethernet)
2111 device ti # Alteon Networks Tigon I/II gigabit Ethernet
2112 device txp # 3Com 3cR990 (``Typhoon'')
2113 device vx # 3Com 3c590, 3c595 (``Vortex'')
2114 device vxge # Exar/Neterion XFrame 3100 10GbE
2122 # PCI IEEE 802.11 Wireless NICs
2123 device ath # Atheros pci/cardbus NIC's
2124 device ath_hal # pci/cardbus chip support
2125 #device ath_ar5210 # AR5210 chips
2126 #device ath_ar5211 # AR5211 chips
2127 #device ath_ar5212 # AR5212 chips
2134 #device ath_ar5416 # AR5416 chips
2135 options AH_SUPPORT_AR5416 # enable AR5416 tx/rx descriptors
2136 # All of the AR5212 parts have a problem when paired with the AR71xx
2137 # CPUS. These parts have a bug that triggers a fatal bus error on the AR71xx
2138 # only. Details of the exact nature of the bug are sketchy, but some can be
2139 # found at https://forum.openwrt.org/viewtopic.php?pid=70060 on pages 4, 5 and
2140 # 6. This option enables this workaround. There is a performance penalty
2141 # for this work around, but without it things don't work at all. The DMA
2142 # from the card usually bursts 128 bytes, but on the affected CPUs, only
2144 options AH_RXCFG_SDMAMW_4BYTES
2145 #device ath_ar9160 # AR9160 chips
2146 #device ath_ar9280 # AR9280 chips
2147 #device ath_ar9285 # AR9285 chips
2148 device ath_rate_sample # SampleRate tx rate control for ath
2149 device bwi # Broadcom BCM430* BCM431*
2150 device bwn # Broadcom BCM43xx
2151 device malo # Marvell Libertas wireless NICs.
2152 device mwl # Marvell 88W8363 802.11n wireless NICs.
2154 device ral # Ralink Technology RT2500 wireless NICs.
2156 # Use sf_buf(9) interface for jumbo buffers on ti(4) controllers.
2157 #options TI_SF_BUF_JUMBO
2158 # Turn on the header splitting option for the ti(4) driver firmware. This
2159 # only works for Tigon II chips, and has no effect for Tigon I chips.
2160 # This option requires the TI_SF_BUF_JUMBO option above.
2161 #options TI_JUMBO_HDRSPLIT
2163 # These two options allow manipulating the mbuf cluster size and mbuf size,
2164 # respectively. Be very careful with NIC driver modules when changing
2165 # these from their default values, because that can potentially cause a
2166 # mismatch between the mbuf size assumed by the kernel and the mbuf size
2167 # assumed by a module. The only driver that currently has the ability to
2168 # detect a mismatch is ti(4).
2169 options MCLSHIFT=12 # mbuf cluster shift in bits, 12 == 4KB
2170 options MSIZE=512 # mbuf size in bytes
2173 # ATM related options (Cranor version)
2174 # (note: this driver cannot be used with the HARP ATM stack)
2176 # The `en' device provides support for Efficient Networks (ENI)
2177 # ENI-155 PCI midway cards, and the Adaptec 155Mbps PCI ATM cards (ANA-59x0).
2179 # The `hatm' device provides support for Fore/Marconi HE155 and HE622
2182 # The `fatm' device provides support for Fore PCA200E ATM PCI cards.
2184 # The `patm' device provides support for IDT77252 based cards like
2185 # ProSum's ProATM-155 and ProATM-25 and IDT's evaluation boards.
2187 # atm device provides generic atm functions and is required for
2189 # NATM enables the netnatm protocol family that can be used to
2192 # utopia provides the access to the ATM PHY chips and is required for en,
2195 # the current driver supports only PVC operations (no atm-arp, no multicast).
2196 # for more details, please read the original documents at
2197 # http://www.ccrc.wustl.edu/pub/chuck/tech/bsdatm/bsdatm.html
2201 device fatm #Fore PCA200E
2202 device hatm #Fore/Marconi HE155/622
2203 device patm #IDT77252 cards (ProATM and IDT)
2204 device utopia #ATM PHY driver
2205 options NATM #native ATM
2207 options LIBMBPOOL #needed by patm, iatm
2212 # sound: The generic sound driver.
2218 # snd_*: Device-specific drivers.
2220 # The flags of the device tell the device a bit more info about the
2221 # device that normally is obtained through the PnP interface.
2222 # bit 2..0 secondary DMA channel;
2223 # bit 4 set if the board uses two dma channels;
2224 # bit 15..8 board type, overrides autodetection; leave it
2225 # zero if don't know what to put in (and you don't,
2226 # since this is unsupported at the moment...).
2228 # snd_ad1816: Analog Devices AD1816 ISA PnP/non-PnP.
2229 # snd_als4000: Avance Logic ALS4000 PCI.
2230 # snd_atiixp: ATI IXP 200/300/400 PCI.
2231 # snd_audiocs: Crystal Semiconductor CS4231 SBus/EBus. Only
2233 # snd_cmi: CMedia CMI8338/CMI8738 PCI.
2234 # snd_cs4281: Crystal Semiconductor CS4281 PCI.
2235 # snd_csa: Crystal Semiconductor CS461x/428x PCI. (except
2237 # snd_ds1: Yamaha DS-1 PCI.
2238 # snd_emu10k1: Creative EMU10K1 PCI and EMU10K2 (Audigy) PCI.
2239 # snd_emu10kx: Creative SoundBlaster Live! and Audigy
2240 # snd_envy24: VIA Envy24 and compatible, needs snd_spicds.
2241 # snd_envy24ht: VIA Envy24HT and compatible, needs snd_spicds.
2242 # snd_es137x: Ensoniq AudioPCI ES137x PCI.
2243 # snd_ess: Ensoniq ESS ISA PnP/non-PnP, to be used in
2244 # conjunction with snd_sbc.
2245 # snd_fm801: Forte Media FM801 PCI.
2246 # snd_gusc: Gravis UltraSound ISA PnP/non-PnP.
2247 # snd_hda: Intel High Definition Audio (Controller) and
2249 # snd_hdspe: RME HDSPe AIO and RayDAT.
2250 # snd_ich: Intel ICH AC'97 and some more audio controllers
2251 # embedded in a chipset, for example nVidia
2252 # nForce controllers.
2253 # snd_maestro: ESS Technology Maestro-1/2x PCI.
2254 # snd_maestro3: ESS Technology Maestro-3/Allegro PCI.
2255 # snd_mss: Microsoft Sound System ISA PnP/non-PnP.
2256 # snd_neomagic: Neomagic 256 AV/ZX PCI.
2257 # snd_sb16: Creative SoundBlaster16, to be used in
2258 # conjunction with snd_sbc.
2259 # snd_sb8: Creative SoundBlaster (pre-16), to be used in
2260 # conjunction with snd_sbc.
2261 # snd_sbc: Creative SoundBlaster ISA PnP/non-PnP.
2262 # Supports ESS and Avance ISA chips as well.
2263 # snd_solo: ESS Solo-1x PCI.
2264 # snd_spicds: SPI codec driver, needed by Envy24/Envy24HT drivers.
2265 # snd_t4dwave: Trident 4DWave DX/NX PCI, Sis 7018 PCI and Acer Labs
2267 # snd_uaudio: USB audio.
2268 # snd_via8233: VIA VT8233x PCI.
2269 # snd_via82c686: VIA VT82C686A PCI.
2270 # snd_vibes: S3 Sonicvibes PCI.
2303 device snd_via82c686
2306 # For non-PnP sound cards:
2310 hint.pcm.0.flags="0x0"
2312 hint.sbc.0.port="0x220"
2315 hint.sbc.0.flags="0x15"
2316 hint.gusc.0.at="isa"
2317 hint.gusc.0.port="0x220"
2320 hint.gusc.0.flags="0x13"
2323 # Following options are intended for debugging/testing purposes:
2325 # SND_DEBUG Enable extra debugging code that includes
2326 # sanity checking and possible increase of
2329 # SND_DIAGNOSTIC Similar in a spirit of INVARIANTS/DIAGNOSTIC,
2330 # zero tolerance against inconsistencies.
2332 # SND_FEEDER_MULTIFORMAT By default, only 16/32 bit feeders are compiled
2333 # in. This options enable most feeder converters
2334 # except for 8bit. WARNING: May bloat the kernel.
2336 # SND_FEEDER_FULL_MULTIFORMAT Ditto, but includes 8bit feeders as well.
2338 # SND_FEEDER_RATE_HP (feeder_rate) High precision 64bit arithmetic
2339 # as much as possible (the default trying to
2340 # avoid it). Possible slowdown.
2342 # SND_PCM_64 (Only applicable for i386/32bit arch)
2343 # Process 32bit samples through 64bit
2344 # integer/arithmetic. Slight increase of dynamic
2345 # range at a cost of possible slowdown.
2347 # SND_OLDSTEREO Only 2 channels are allowed, effectively
2348 # disabling multichannel processing.
2351 options SND_DIAGNOSTIC
2352 options SND_FEEDER_MULTIFORMAT
2353 options SND_FEEDER_FULL_MULTIFORMAT
2354 options SND_FEEDER_RATE_HP
2356 options SND_OLDSTEREO
2359 # IEEE-488 hardware:
2360 # pcii: PCIIA cards (uPD7210 based isa cards)
2361 # tnt4882: National Instruments PCI-GPIB card.
2364 hint.pcii.0.at="isa"
2365 hint.pcii.0.port="0x2e1"
2372 # Miscellaneous hardware:
2374 # scd: Sony CD-ROM using proprietary (non-ATAPI) interface
2375 # mcd: Mitsumi CD-ROM using proprietary (non-ATAPI) interface
2376 # bktr: Brooktree bt848/848a/849a/878/879 video capture and TV Tuner board
2377 # joy: joystick (including IO DATA PCJOY PC Card joystick)
2378 # cmx: OmniKey CardMan 4040 pccard smartcard reader
2383 hint.mcd.0.port="0x300"
2384 # for the Sony CDU31/33A CDROM
2387 hint.scd.0.port="0x230"
2388 device joy # PnP aware, hints for non-PnP only
2390 hint.joy.0.port="0x201"
2394 # The 'bktr' device is a PCI video capture device using the Brooktree
2395 # bt848/bt848a/bt849a/bt878/bt879 chipset. When used with a TV Tuner it forms a
2396 # TV card, e.g. Miro PC/TV, Hauppauge WinCast/TV WinTV, VideoLogic Captivator,
2397 # Intel Smart Video III, AverMedia, IMS Turbo, FlyVideo.
2399 # options OVERRIDE_CARD=xxx
2400 # options OVERRIDE_TUNER=xxx
2401 # options OVERRIDE_MSP=1
2402 # options OVERRIDE_DBX=1
2403 # These options can be used to override the auto detection
2404 # The current values for xxx are found in src/sys/dev/bktr/bktr_card.h
2405 # Using sysctl(8) run-time overrides on a per-card basis can be made
2407 # options BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_PAL
2409 # options BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_NTSC
2410 # Specifies the default video capture mode.
2411 # This is required for Dual Crystal (28&35MHz) boards where PAL is used
2412 # to prevent hangs during initialization, e.g. VideoLogic Captivator PCI.
2414 # options BKTR_USE_PLL
2415 # This is required for PAL or SECAM boards with a 28MHz crystal and no 35MHz
2416 # crystal, e.g. some new Bt878 cards.
2418 # options BKTR_GPIO_ACCESS
2419 # This enables IOCTLs which give user level access to the GPIO port.
2421 # options BKTR_NO_MSP_RESET
2422 # Prevents the MSP34xx reset. Good if you initialize the MSP in another OS first
2424 # options BKTR_430_FX_MODE
2425 # Switch Bt878/879 cards into Intel 430FX chipset compatibility mode.
2427 # options BKTR_SIS_VIA_MODE
2428 # Switch Bt878/879 cards into SIS/VIA chipset compatibility mode which is
2429 # needed for some old SiS and VIA chipset motherboards.
2430 # This also allows Bt878/879 chips to work on old OPTi (<1997) chipset
2431 # motherboards and motherboards with bad or incomplete PCI 2.1 support.
2432 # As a rough guess, old = before 1998
2434 # options BKTR_NEW_MSP34XX_DRIVER
2435 # Use new, more complete initialization scheme for the msp34* soundchip.
2436 # Should fix stereo autodetection if the old driver does only output
2440 # options BKTR_USE_FREEBSD_SMBUS
2441 # Compile with FreeBSD SMBus implementation
2443 # Brooktree driver has been ported to the new I2C framework. Thus,
2444 # you'll need to have the following 3 lines in the kernel config.
2449 # The iic and smb devices are only needed if you want to control other
2450 # I2C slaves connected to the external connector of some cards.
2455 # PC Card/PCMCIA and Cardbus
2457 # cbb: pci/cardbus bridge implementing YENTA interface
2458 # pccard: pccard slots
2459 # cardbus: cardbus slots
2468 # mmcsd MMC/SD memory card
2469 # sdhci Generic PCI SD Host Controller
2478 # System Management Bus support is provided by the 'smbus' device.
2479 # Access to the SMBus device is via the 'smb' device (/dev/smb*),
2480 # which is a child of the 'smbus' device.
2482 # Supported devices:
2483 # smb standard I/O through /dev/smb*
2485 # Supported SMB interfaces:
2486 # iicsmb I2C to SMB bridge with any iicbus interface
2487 # bktr brooktree848 I2C hardware interface
2488 # intpm Intel PIIX4 (82371AB, 82443MX) Power Management Unit
2489 # alpm Acer Aladdin-IV/V/Pro2 Power Management Unit
2490 # ichsmb Intel ICH SMBus controller chips (82801AA, 82801AB, 82801BA)
2491 # viapm VIA VT82C586B/596B/686A and VT8233 Power Management Unit
2492 # amdpm AMD 756 Power Management Unit
2493 # amdsmb AMD 8111 SMBus 2.0 Controller
2494 # nfpm NVIDIA nForce Power Management Unit
2495 # nfsmb NVIDIA nForce2/3/4 MCP SMBus 2.0 Controller
2496 # ismt Intel SMBus 2.0 controller chips (on Atom S1200, C2000)
2498 device smbus # Bus support, required for smb below.
2515 # Philips i2c bus support is provided by the `iicbus' device.
2517 # Supported devices:
2518 # ic i2c network interface
2519 # iic i2c standard io
2520 # iicsmb i2c to smb bridge. Allow i2c i/o with smb commands.
2521 # iicoc simple polling driver for OpenCores I2C controller
2523 # Supported interfaces:
2524 # bktr brooktree848 I2C software interface
2527 # iicbb generic I2C bit-banging code (needed by lpbb, bktr)
2529 device iicbus # Bus support, required for ic/iic/iicsmb below.
2534 device iicsmb # smb over i2c bridge
2535 device iicoc # OpenCores I2C controller support
2537 # I2C peripheral devices
2539 # ds133x Dallas Semiconductor DS1337, DS1338 and DS1339 RTC
2540 # ds1374 Dallas Semiconductor DS1374 RTC
2541 # ds1672 Dallas Semiconductor DS1672 RTC
2542 # s35390a Seiko Instruments S-35390A RTC
2551 # Parallel port bus support is provided by the `ppbus' device.
2552 # Multiple devices may be attached to the parallel port, devices
2553 # are automatically probed and attached when found.
2555 # Supported devices:
2556 # vpo Iomega Zip Drive
2557 # Requires SCSI disk support ('scbus' and 'da'), best
2558 # performance is achieved with ports in EPP 1.9 mode.
2559 # lpt Parallel Printer
2560 # plip Parallel network interface
2561 # ppi General-purpose I/O ("Geek Port") + IEEE1284 I/O
2562 # pps Pulse per second Timing Interface
2563 # lpbb Philips official parallel port I2C bit-banging interface
2564 # pcfclock Parallel port clock driver.
2566 # Supported interfaces:
2567 # ppc ISA-bus parallel port interfaces.
2570 options PPC_PROBE_CHIPSET # Enable chipset specific detection
2571 # (see flags in ppc(4))
2572 options DEBUG_1284 # IEEE1284 signaling protocol debug
2573 options PERIPH_1284 # Makes your computer act as an IEEE1284
2574 # compliant peripheral
2575 options DONTPROBE_1284 # Avoid boot detection of PnP parallel devices
2576 options VP0_DEBUG # ZIP/ZIP+ debug
2577 options LPT_DEBUG # Printer driver debug
2578 options PPC_DEBUG # Parallel chipset level debug
2579 options PLIP_DEBUG # Parallel network IP interface debug
2580 options PCFCLOCK_VERBOSE # Verbose pcfclock driver
2581 options PCFCLOCK_MAX_RETRIES=5 # Maximum read tries (default 10)
2595 # Kernel BOOTP support
2597 options BOOTP # Use BOOTP to obtain IP address/hostname
2598 # Requires NFSCLIENT and NFS_ROOT
2599 options BOOTP_NFSROOT # NFS mount root filesystem using BOOTP info
2600 options BOOTP_NFSV3 # Use NFS v3 to NFS mount root
2601 options BOOTP_COMPAT # Workaround for broken bootp daemons.
2602 options BOOTP_WIRED_TO=fxp0 # Use interface fxp0 for BOOTP
2603 options BOOTP_BLOCKSIZE=8192 # Override NFS block size
2606 # Add software watchdog routines.
2611 # Add the software deadlock resolver thread.
2616 # Disable swapping of stack pages. This option removes all
2617 # code which actually performs swapping, so it's not possible to turn
2618 # it back on at run-time.
2620 # This is sometimes usable for systems which don't have any swap space
2621 # (see also sysctls "vm.defer_swapspace_pageouts" and
2622 # "vm.disable_swapspace_pageouts")
2624 #options NO_SWAPPING
2626 # Set the number of sf_bufs to allocate. sf_bufs are virtual buffers
2627 # for sendfile(2) that are used to map file VM pages, and normally
2628 # default to a quantity that is roughly 16*MAXUSERS+512. You would
2629 # typically want about 4 of these for each simultaneous file send.
2631 options NSFBUFS=1024
2634 # Enable extra debugging code for locks. This stores the filename and
2635 # line of whatever acquired the lock in the lock itself, and changes a
2636 # number of function calls to pass around the relevant data. This is
2637 # not at all useful unless you are debugging lock code. Also note
2638 # that it is likely to break e.g. fstat(1) unless you recompile your
2639 # userland with -DDEBUG_LOCKS as well.
2644 #####################################################################
2656 # General USB code (mandatory for USB)
2659 # USB Double Bulk Pipe devices
2665 # Human Interface Device (anything with buttons and dials)
2671 # USB mass storage driver (Requires scbus and da)
2673 # USB mass storage driver for device-side mode
2675 # USB support for Belkin F5U109 and Magic Control Technology serial adapters
2684 # eGalax USB touch screen
2686 # Diamond Rio 500 MP3 player
2689 # USB serial support
2691 # USB support for 3G modem cards by Option, Novatel, Huawei and Sierra
2693 # USB support for Technologies ARK3116 based serial adapters
2695 # USB support for Belkin F5U103 and compatible serial adapters
2697 # USB support for serial adapters based on the FT8U100AX and FT8U232AM
2699 # USB support for some Windows CE based serial communication.
2701 # USB support for Prolific PL-2303 serial adapters
2703 # USB support for Silicon Laboratories CP2101/CP2102 based USB serial adapters
2705 # USB Visor and Palm devices
2707 # USB serial support for DDI pocket's PHS
2710 # USB ethernet support
2712 # ADMtek USB ethernet. Supports the LinkSys USB100TX,
2713 # the Billionton USB100, the Melco LU-ATX, the D-Link DSB-650TX
2714 # and the SMC 2202USB. Also works with the ADMtek AN986 Pegasus
2718 # ASIX Electronics AX88172 USB 2.0 ethernet driver. Used in the
2719 # LinkSys USB200M and various other adapters.
2721 # ASIX Electronics AX88178A/AX88179 USB 2.0/3.0 gigabit ethernet driver.
2725 # Devices which communicate using Ethernet over USB, particularly
2726 # Communication Device Class (CDC) Ethernet specification. Supports
2727 # Sharp Zaurus PDAs, some DOCSIS cable modems and so on.
2730 # CATC USB-EL1201A USB ethernet. Supports the CATC Netmate
2731 # and Netmate II, and the Belkin F5U111.
2734 # Kawasaki LSI ethernet. Supports the LinkSys USB10T,
2735 # Entrega USB-NET-E45, Peracom Ethernet Adapter, the
2736 # 3Com 3c19250, the ADS Technologies USB-10BT, the ATen UC10T,
2737 # the Netgear EA101, the D-Link DSB-650, the SMC 2102USB
2738 # and 2104USB, and the Corega USB-T.
2741 # RealTek RTL8150 USB to fast ethernet. Supports the Melco LUA-KTX
2742 # and the GREEN HOUSE GH-USB100B.
2745 # Davicom DM9601E USB to fast ethernet. Supports the Corega FEther USB-TXC.
2748 # Moschip MCS7730/MCS7840 USB to fast ethernet. Supports the Sitecom LN030.
2751 # HSxPA devices from Option N.V
2754 # Realtek RTL8188SU/RTL8191SU/RTL8192SU wireless driver
2757 # Ralink Technology RT2501USB/RT2601USB wireless driver
2759 # Ralink Technology RT2700U/RT2800U/RT3000U wireless driver
2762 # Atheros AR5523 wireless driver
2765 # Conexant/Intersil PrismGT wireless driver
2768 # Ralink Technology RT2500USB wireless driver
2771 # RNDIS USB ethernet driver
2773 # Realtek RTL8187B/L wireless driver
2776 # Realtek RTL8188CU/RTL8192CU wireless driver
2779 # ZyDas ZD1211/ZD1211B wireless driver
2782 # Sierra USB wireless driver
2786 # debugging options for the USB subsystem
2792 options UKBD_DFLT_KEYMAP # specify the built-in keymap
2793 makeoptions UKBD_DFLT_KEYMAP=it.iso
2795 # options for uplcom:
2796 options UPLCOM_INTR_INTERVAL=100 # interrupt pipe interval
2799 # options for uvscom:
2800 options UVSCOM_DEFAULT_OPKTSIZE=8 # default output packet size
2801 options UVSCOM_INTR_INTERVAL=100 # interrupt pipe interval
2804 #####################################################################
2807 device firewire # FireWire bus code
2808 device sbp # SCSI over Firewire (Requires scbus and da)
2809 device sbp_targ # SBP-2 Target mode (Requires scbus and targ)
2810 device fwe # Ethernet over FireWire (non-standard!)
2811 device fwip # IP over FireWire (RFC2734 and RFC3146)
2813 #####################################################################
2814 # dcons support (Dumb Console Device)
2816 device dcons # dumb console driver
2817 device dcons_crom # FireWire attachment
2818 options DCONS_BUF_SIZE=16384 # buffer size
2819 options DCONS_POLL_HZ=100 # polling rate
2820 options DCONS_FORCE_CONSOLE=0 # force to be the primary console
2821 options DCONS_FORCE_GDB=1 # force to be the gdb device
2823 #####################################################################
2826 # This is a port of the OpenBSD crypto framework. Include this when
2827 # configuring IPSEC and when you have a h/w crypto device to accelerate
2828 # user applications that link to OpenSSL.
2830 # Drivers are ports from OpenBSD with some simple enhancements that have
2831 # been fed back to OpenBSD.
2833 device crypto # core crypto support
2834 device cryptodev # /dev/crypto for access to h/w
2836 device rndtest # FIPS 140-2 entropy tester
2838 device hifn # Hifn 7951, 7781, etc.
2839 options HIFN_DEBUG # enable debugging support: hw.hifn.debug
2840 options HIFN_RNDTEST # enable rndtest support
2842 device ubsec # Broadcom 5501, 5601, 58xx
2843 options UBSEC_DEBUG # enable debugging support: hw.ubsec.debug
2844 options UBSEC_RNDTEST # enable rndtest support
2846 #####################################################################
2850 # Embedded system options:
2852 # An embedded system might want to run something other than init.
2853 options INIT_PATH=/sbin/init:/rescue/init
2856 options BUS_DEBUG # enable newbus debugging
2857 options DEBUG_VFS_LOCKS # enable VFS lock debugging
2858 options SOCKBUF_DEBUG # enable sockbuf last record/mb tail checking
2863 # Make the SYSINIT process performed by mi_startup() verbose. This is very
2864 # useful when porting to a new architecture. If DDB is also enabled, this
2865 # will print function names instead of addresses.
2866 options VERBOSE_SYSINIT
2868 #####################################################################
2869 # SYSV IPC KERNEL PARAMETERS
2871 # Maximum number of System V semaphores that can be used on the system at
2875 # Total number of semaphores system wide
2878 # Total number of undo structures in system
2881 # Maximum number of System V semaphores that can be used by a single process
2885 # Maximum number of operations that can be outstanding on a single System V
2886 # semaphore at one time.
2889 # Maximum number of undo operations that can be outstanding on a single
2890 # System V semaphore at one time.
2893 # Maximum number of shared memory pages system wide.
2896 # Maximum size, in bytes, of a single System V shared memory region.
2897 options SHMMAX=(SHMMAXPGS*PAGE_SIZE+1)
2898 options SHMMAXPGS=1025
2900 # Minimum size, in bytes, of a single System V shared memory region.
2903 # Maximum number of shared memory regions that can be used on the system
2907 # Maximum number of System V shared memory regions that can be attached to
2908 # a single process at one time.
2911 # Compress user core dumps.
2912 options COMPRESS_USER_CORES
2913 # required to compress file output from kernel for COMPRESS_USER_CORES.
2916 # Set the amount of time (in seconds) the system will wait before
2917 # rebooting automatically when a kernel panic occurs. If set to (-1),
2918 # the system will wait indefinitely until a key is pressed on the
2920 options PANIC_REBOOT_WAIT_TIME=16
2922 # Attempt to bypass the buffer cache and put data directly into the
2923 # userland buffer for read operation when O_DIRECT flag is set on the
2924 # file. Both offset and length of the read operation must be
2925 # multiples of the physical media sector size.
2929 # Specify a lower limit for the number of swap I/O buffers. They are
2930 # (among other things) used when bypassing the buffer cache due to
2931 # DIRECTIO kernel option enabled and O_DIRECT flag set on file.
2933 options NSWBUF_MIN=120
2935 #####################################################################
2937 # More undocumented options for linting.
2938 # Note that documenting these is not considered an affront.
2940 options CAM_DEBUG_DELAY
2942 # VFS cluster debugging.
2943 options CLUSTERDEBUG
2947 # Kernel filelock debugging.
2950 # System V compatible message queues
2951 # Please note that the values provided here are used to test kernel
2952 # building. The defaults in the sources provide almost the same numbers.
2953 # MSGSSZ must be a power of 2 between 8 and 1024.
2954 options MSGMNB=2049 # Max number of chars in queue
2955 options MSGMNI=41 # Max number of message queue identifiers
2956 options MSGSEG=2049 # Max number of message segments
2957 options MSGSSZ=16 # Size of a message segment
2958 options MSGTQL=41 # Max number of messages in system
2960 options NBUF=512 # Number of buffer headers
2962 options SCSI_NCR_DEBUG
2963 options SCSI_NCR_MAX_SYNC=10000
2964 options SCSI_NCR_MAX_WIDE=1
2965 options SCSI_NCR_MYADDR=7
2967 options SC_DEBUG_LEVEL=5 # Syscons debug level
2968 options SC_RENDER_DEBUG # syscons rendering debugging
2970 options VFS_BIO_DEBUG # VFS buffer I/O debugging
2972 options KSTACK_MAX_PAGES=32 # Maximum pages to give the kernel stack
2973 options KSTACK_USAGE_PROF
2975 # Adaptec Array Controller driver options
2976 options AAC_DEBUG # Debugging levels:
2977 # 0 - quiet, only emit warnings
2978 # 1 - noisy, emit major function
2979 # points and things done
2980 # 2 - extremely noisy, emit trace
2981 # items in loops, etc.
2983 # Resource Accounting
2989 # Yet more undocumented options for linting.
2990 # BKTR_ALLOC_PAGES has no effect except to cause warnings, and
2991 # BROOKTREE_ALLOC_PAGES hasn't actually been superseded by it, since the
2992 # driver still mostly spells this option BROOKTREE_ALLOC_PAGES.
2993 ##options BKTR_ALLOC_PAGES=(217*4+1)
2994 options BROOKTREE_ALLOC_PAGES=(217*4+1)
2995 options MAXFILES=999
2997 # Random number generator
2998 options RANDOM_YARROW # Yarrow RNG
2999 ##options RANDOM_FORTUNA # Fortuna RNG - not yet implemented
3000 options RANDOM_DEBUG # Debugging messages
3001 options RANDOM_RWFILE # Read and write entropy cache
3003 # Intel em(4) driver
3004 options EM_MULTIQUEUE # Activate multiqueue features/disable MSI-X