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 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 (obsolete, gone in 12)
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 (obsolete, gone in 12)
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_MAP # Map based partitioning
160 options GEOM_MBR # DOS/MBR partitioning (obsolete, gone in 12)
161 options GEOM_MIRROR # Disk mirroring.
162 options GEOM_MULTIPATH # Disk multipath
163 options GEOM_NOP # Test class.
164 options GEOM_PART_APM # Apple partitioning
165 options GEOM_PART_BSD # BSD disklabel
166 options GEOM_PART_BSD64 # BSD disklabel64
167 options GEOM_PART_EBR # Extended Boot Records
168 options GEOM_PART_EBR_COMPAT # Backward compatible partition names
169 options GEOM_PART_GPT # GPT partitioning
170 options GEOM_PART_LDM # Logical Disk Manager
171 options GEOM_PART_MBR # MBR partitioning
172 options GEOM_PART_VTOC8 # SMI VTOC8 disk label
173 options GEOM_RAID # Soft RAID functionality.
174 options GEOM_RAID3 # RAID3 functionality.
175 options GEOM_SHSEC # Shared secret.
176 options GEOM_STRIPE # Disk striping.
177 options GEOM_SUNLABEL # Sun/Solaris partitioning (obsolete, gone in 12)
178 options GEOM_UZIP # Read-only compressed disks
179 options GEOM_VINUM # Vinum logical volume manager
180 options GEOM_VIRSTOR # Virtual storage.
181 options GEOM_VOL # Volume names from UFS superblock (obsolete, gone in 12)
182 options GEOM_ZERO # Performance testing helper.
185 # The root device and filesystem type can be compiled in;
186 # this provides a fallback option if the root device cannot
187 # be correctly guessed by the bootstrap code, or an override if
188 # the RB_DFLTROOT flag (-r) is specified when booting the kernel.
190 options ROOTDEVNAME=\"ufs:da0s2e\"
193 #####################################################################
196 # Specifying one of SCHED_4BSD or SCHED_ULE is mandatory. These options
197 # select which scheduler is compiled in.
199 # SCHED_4BSD is the historical, proven, BSD scheduler. It has a global run
200 # queue and no CPU affinity which makes it suboptimal for SMP. It has very
201 # good interactivity and priority selection.
203 # SCHED_ULE provides significant performance advantages over 4BSD on many
204 # workloads on SMP machines. It supports cpu-affinity, per-cpu runqueues
205 # and scheduler locks. It also has a stronger notion of interactivity
206 # which leads to better responsiveness even on uniprocessor machines. This
207 # is the default scheduler.
209 # SCHED_STATS is a debugging option which keeps some stats in the sysctl
210 # tree at 'kern.sched.stats' and is useful for debugging scheduling decisions.
216 #####################################################################
219 # SMP enables building of a Symmetric MultiProcessor Kernel.
222 options SMP # Symmetric MultiProcessor Kernel
224 # EARLY_AP_STARTUP releases the Application Processors earlier in the
225 # kernel startup process (before devices are probed) rather than at the
226 # end. This is a temporary option for use during the transition from
227 # late to early AP startup.
228 options EARLY_AP_STARTUP
230 # MAXCPU defines the maximum number of CPUs that can boot in the system.
231 # A default value should be already present, for every architecture.
234 # MAXMEMDOM defines the maximum number of memory domains that can boot in the
235 # system. A default value should already be defined by every architecture.
238 # VM_NUMA_ALLOC enables use of memory domain-aware allocation in the VM
240 options VM_NUMA_ALLOC
242 # DEVICE_NUMA enables reporting of domain affinity of I/O devices via
243 # bus_get_domain(), etc.
246 # ADAPTIVE_MUTEXES changes the behavior of blocking mutexes to spin
247 # if the thread that currently owns the mutex is executing on another
248 # CPU. This behavior is enabled by default, so this option can be used
250 options NO_ADAPTIVE_MUTEXES
252 # ADAPTIVE_RWLOCKS changes the behavior of reader/writer locks to spin
253 # if the thread that currently owns the rwlock is executing on another
254 # CPU. This behavior is enabled by default, so this option can be used
256 options NO_ADAPTIVE_RWLOCKS
258 # ADAPTIVE_SX changes the behavior of sx locks to spin if the thread that
259 # currently owns the sx lock is executing on another CPU.
260 # This behavior is enabled by default, so this option can be used to
262 options NO_ADAPTIVE_SX
264 # MUTEX_NOINLINE forces mutex operations to call functions to perform each
265 # operation rather than inlining the simple cases. This can be used to
266 # shrink the size of the kernel text segment. Note that this behavior is
267 # already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
268 # and WITNESS options.
269 options MUTEX_NOINLINE
271 # RWLOCK_NOINLINE forces rwlock operations to call functions to perform each
272 # operation rather than inlining the simple cases. This can be used to
273 # shrink the size of the kernel text segment. Note that this behavior is
274 # already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
275 # and WITNESS options.
276 options RWLOCK_NOINLINE
278 # SX_NOINLINE forces sx lock operations to call functions to perform each
279 # operation rather than inlining the simple cases. This can be used to
280 # shrink the size of the kernel text segment. Note that this behavior is
281 # already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
282 # and WITNESS options.
285 # SMP Debugging Options:
287 # CALLOUT_PROFILING enables rudimentary profiling of the callwheel data
288 # structure used as backend in callout(9).
289 # PREEMPTION allows the threads that are in the kernel to be preempted by
290 # higher priority [interrupt] threads. It helps with interactivity
291 # and allows interrupt threads to run sooner rather than waiting.
292 # WARNING! Only tested on amd64 and i386.
293 # FULL_PREEMPTION instructs the kernel to preempt non-realtime kernel
294 # threads. Its sole use is to expose race conditions and other
295 # bugs during development. Enabling this option will reduce
296 # performance and increase the frequency of kernel panics by
297 # design. If you aren't sure that you need it then you don't.
298 # Relies on the PREEMPTION option. DON'T TURN THIS ON.
299 # SLEEPQUEUE_PROFILING enables rudimentary profiling of the hash table
300 # used to hold active sleep queues as well as sleep wait message
302 # TURNSTILE_PROFILING enables rudimentary profiling of the hash table
303 # used to hold active lock queues.
304 # UMTX_PROFILING enables rudimentary profiling of the hash table used
305 # to hold active lock queues.
306 # WITNESS enables the witness code which detects deadlocks and cycles
307 # during locking operations.
308 # WITNESS_KDB causes the witness code to drop into the kernel debugger if
309 # a lock hierarchy violation occurs or if locks are held when going to
311 # WITNESS_SKIPSPIN disables the witness checks on spin mutexes.
313 options FULL_PREEMPTION
316 options WITNESS_SKIPSPIN
318 # LOCK_PROFILING - Profiling locks. See LOCK_PROFILING(9) for details.
319 options LOCK_PROFILING
320 # Set the number of buffers and the hash size. The hash size MUST be larger
321 # than the number of buffers. Hash size should be prime.
322 options MPROF_BUFFERS="1536"
323 options MPROF_HASH_SIZE="1543"
325 # Profiling for the callout(9) backend.
326 options CALLOUT_PROFILING
328 # Profiling for internal hash tables.
329 options SLEEPQUEUE_PROFILING
330 options TURNSTILE_PROFILING
331 options UMTX_PROFILING
334 #####################################################################
335 # COMPATIBILITY OPTIONS
338 # Implement system calls compatible with 4.3BSD and older versions of
339 # FreeBSD. You probably do NOT want to remove this as much current code
340 # still relies on the 4.3 emulation. Note that some architectures that
341 # are supported by FreeBSD do not include support for certain important
342 # aspects of this compatibility option, namely those related to the
343 # signal delivery mechanism.
350 # Note that as a general rule, COMPAT_FREEBSD<n> depends on
351 # COMPAT_FREEBSD<n+1>, COMPAT_FREEBSD<n+2>, etc.
353 # Enable FreeBSD4 compatibility syscalls
354 options COMPAT_FREEBSD4
356 # Enable FreeBSD5 compatibility syscalls
357 options COMPAT_FREEBSD5
359 # Enable FreeBSD6 compatibility syscalls
360 options COMPAT_FREEBSD6
362 # Enable FreeBSD7 compatibility syscalls
363 options COMPAT_FREEBSD7
365 # Enable FreeBSD9 compatibility syscalls
366 options COMPAT_FREEBSD9
368 # Enable FreeBSD10 compatibility syscalls
369 options COMPAT_FREEBSD10
371 # Enable FreeBSD11 compatibility syscalls
372 options COMPAT_FREEBSD11
374 # Enable Linux Kernel Programming Interface
375 options COMPAT_LINUXKPI
378 # These three options provide support for System V Interface
379 # Definition-style interprocess communication, in the form of shared
380 # memory, semaphores, and message queues, respectively.
387 #####################################################################
391 # Compile with kernel debugger related code.
396 # Print a stack trace of the current thread on the console for a panic.
401 # Don't enter the debugger for a panic. Intended for unattended operation
402 # where you may want to enter the debugger from the console, but still want
403 # the machine to recover from a panic.
405 options KDB_UNATTENDED
408 # Enable the ddb debugger backend.
413 # Print the numerical value of symbols in addition to the symbolic
419 # Enable the remote gdb debugger backend.
424 # SYSCTL_DEBUG enables a 'sysctl' debug tree that can be used to dump the
425 # contents of the registered sysctl nodes on the console. It is disabled by
426 # default because it generates excessively verbose console output that can
427 # interfere with serial console operation.
432 # Enable textdump by default, this disables kernel core dumps.
434 options TEXTDUMP_PREFERRED
437 # Enable extra debug messages while performing textdumps.
439 options TEXTDUMP_VERBOSE
442 # NO_SYSCTL_DESCR omits the sysctl node descriptions to save space in the
444 options NO_SYSCTL_DESCR
447 # MALLOC_DEBUG_MAXZONES enables multiple uma zones for malloc(9)
448 # allocations that are smaller than a page. The purpose is to isolate
449 # different malloc types into hash classes, so that any buffer
450 # overruns or use-after-free will usually only affect memory from
451 # malloc types in that hash class. This is purely a debugging tool;
452 # by varying the hash function and tracking which hash class was
453 # corrupted, the intersection of the hash classes from each instance
454 # will point to a single malloc type that is being misused. At this
455 # point inspection or memguard(9) can be used to catch the offending
458 options MALLOC_DEBUG_MAXZONES=8
461 # DEBUG_MEMGUARD builds and enables memguard(9), a replacement allocator
462 # for the kernel used to detect modify-after-free scenarios. See the
463 # memguard(9) man page for more information on usage.
465 options DEBUG_MEMGUARD
468 # DEBUG_REDZONE enables buffer underflows and buffer overflows detection for
471 options DEBUG_REDZONE
474 # EARLY_PRINTF enables support for calling a special printf (eprintf)
475 # very early in the kernel (before cn_init() has been called). This
476 # should only be used for debugging purposes early in boot. Normally,
477 # it is not defined. It is commented out here because this feature
478 # isn't generally available. And the required eputc() isn't defined.
480 #options EARLY_PRINTF
483 # KTRACE enables the system-call tracing facility ktrace(2). To be more
484 # SMP-friendly, KTRACE uses a worker thread to process most trace events
485 # asynchronously to the thread generating the event. This requires a
486 # pre-allocated store of objects representing trace events. The
487 # KTRACE_REQUEST_POOL option specifies the initial size of this store.
488 # The size of the pool can be adjusted both at boottime and runtime via
489 # the kern.ktrace_request_pool tunable and sysctl.
491 options KTRACE #kernel tracing
492 options KTRACE_REQUEST_POOL=101
495 # KTR is a kernel tracing facility imported from BSD/OS. It is
496 # enabled with the KTR option. KTR_ENTRIES defines the number of
497 # entries in the circular trace buffer; it may be an arbitrary number.
498 # KTR_BOOT_ENTRIES defines the number of entries during the early boot,
499 # before malloc(9) is functional.
500 # KTR_COMPILE defines the mask of events to compile into the kernel as
501 # defined by the KTR_* constants in <sys/ktr.h>. KTR_MASK defines the
502 # initial value of the ktr_mask variable which determines at runtime
503 # what events to trace. KTR_CPUMASK determines which CPU's log
504 # events, with bit X corresponding to CPU X. The layout of the string
505 # passed as KTR_CPUMASK must match a series of bitmasks each of them
506 # separated by the "," character (ie:
507 # KTR_CPUMASK=0xAF,0xFFFFFFFFFFFFFFFF). KTR_VERBOSE enables
508 # dumping of KTR events to the console by default. This functionality
509 # can be toggled via the debug.ktr_verbose sysctl and defaults to off
510 # if KTR_VERBOSE is not defined. See ktr(4) and ktrdump(8) for details.
513 options KTR_BOOT_ENTRIES=1024
514 options KTR_ENTRIES=(128*1024)
515 options KTR_COMPILE=(KTR_ALL)
516 options KTR_MASK=KTR_INTR
517 options KTR_CPUMASK=0x3
521 # ALQ(9) is a facility for the asynchronous queuing of records from the kernel
522 # to a vnode, and is employed by services such as ktr(4) to produce trace
523 # files based on a kernel event stream. Records are written asynchronously
524 # in a worker thread.
530 # The INVARIANTS option is used in a number of source files to enable
531 # extra sanity checking of internal structures. This support is not
532 # enabled by default because of the extra time it would take to check
533 # for these conditions, which can only occur as a result of
534 # programming errors.
539 # The INVARIANT_SUPPORT option makes us compile in support for
540 # verifying some of the internal structures. It is a prerequisite for
541 # 'INVARIANTS', as enabling 'INVARIANTS' will make these functions be
542 # called. The intent is that you can set 'INVARIANTS' for single
543 # source files (by changing the source file or specifying it on the
544 # command line) if you have 'INVARIANT_SUPPORT' enabled. Also, if you
545 # wish to build a kernel module with 'INVARIANTS', then adding
546 # 'INVARIANT_SUPPORT' to your kernel will provide all the necessary
547 # infrastructure without the added overhead.
549 options INVARIANT_SUPPORT
552 # The DIAGNOSTIC option is used to enable extra debugging information
553 # from some parts of the kernel. As this makes everything more noisy,
554 # it is disabled by default.
559 # REGRESSION causes optional kernel interfaces necessary only for regression
560 # testing to be enabled. These interfaces may constitute security risks
561 # when enabled, as they permit processes to easily modify aspects of the
562 # run-time environment to reproduce unlikely or unusual (possibly normally
563 # impossible) scenarios.
568 # This option lets some drivers co-exist that can't co-exist in a running
569 # system. This is used to be able to compile all kernel code in one go for
570 # quality assurance purposes (like this file, which the option takes it name
573 options COMPILING_LINT
576 # STACK enables the stack(9) facility, allowing the capture of kernel stack
577 # for the purpose of procinfo(1), etc. stack(9) will also be compiled in
578 # automatically if DDB(4) is compiled into the kernel.
583 # The NUM_CORE_FILES option specifies the limit for the number of core
584 # files generated by a particular process, when the core file format
585 # specifier includes the %I pattern. Since we only have 1 character for
586 # the core count in the format string, meaning the range will be 0-9, the
587 # maximum value allowed for this option is 10.
588 # This core file limit can be adjusted at runtime via the debug.ncores
591 options NUM_CORE_FILES=5
594 # The TSLOG option enables timestamped logging of events, especially
595 # function entries/exits, in order to track the time spent by the kernel.
596 # In particular, this is useful when investigating the early boot process,
597 # before it is possible to use more sophisticated tools like DTrace.
598 # The TSLOGSIZE option controls the size of the (preallocated, fixed
599 # length) buffer used for storing these events (default: 262144 records).
601 # For security reasons the TSLOG option should not be enabled on systems
602 # used in production.
605 options TSLOGSIZE=262144
608 #####################################################################
609 # PERFORMANCE MONITORING OPTIONS
612 # The hwpmc driver that allows the use of in-CPU performance monitoring
613 # counters for performance monitoring. The base kernel needs to be configured
614 # with the 'options' line, while the hwpmc device can be either compiled
615 # in or loaded as a loadable kernel module.
617 # Additional configuration options may be required on specific architectures,
618 # please see hwpmc(4).
620 device hwpmc # Driver (also a loadable module)
622 options HWPMC_HOOKS # Other necessary kernel hooks
625 #####################################################################
631 options INET #Internet communications protocols
632 options INET6 #IPv6 communications protocols
634 options RATELIMIT # TX rate limiting support
636 options ROUTETABLES=2 # allocated fibs up to 65536. default is 1.
637 # but that would be a bad idea as they are large.
639 options TCP_OFFLOAD # TCP offload support.
641 # In order to enable IPSEC you MUST also add device crypto to
642 # your kernel configuration
643 options IPSEC #IP security (requires device crypto)
645 # Option IPSEC_SUPPORT does not enable IPsec, but makes it possible to
646 # load it as a kernel module. You still MUST add device crypto to your kernel
648 options IPSEC_SUPPORT
649 #options IPSEC_DEBUG #debug for IP security
653 # NETSMB enables support for SMB protocol, it requires LIBMCHAIN and LIBICONV
655 options NETSMB #SMB/CIFS requester
657 # mchain library. It can be either loaded as KLD or compiled into kernel
660 # libalias library, performing NAT
664 # SCTP is a NEW transport protocol defined by
665 # RFC2960 updated by RFC3309 and RFC3758.. and
666 # soon to have a new base RFC and many many more
667 # extensions. This release supports all the extensions
668 # including many drafts (most about to become RFC's).
669 # It is the reference implementation of SCTP
670 # and is quite well tested.
672 # Note YOU MUST have both INET and INET6 defined.
673 # You don't have to enable V6, but SCTP is
674 # dual stacked and so far we have not torn apart
675 # the V6 and V4.. since an association can span
676 # both a V6 and V4 address at the SAME time :-)
679 # There are bunches of options:
680 # this one turns on all sorts of
681 # nastily printing that you can
682 # do. It's all controlled by a
683 # bit mask (settable by socket opt and
684 # by sysctl). Including will not cause
685 # logging until you set the bits.. but it
686 # can be quite verbose.. so without this
687 # option we don't do any of the tests for
688 # bits and prints.. which makes the code run
689 # faster.. if you are not debugging don't use.
692 # All that options after that turn on specific types of
693 # logging. You can monitor CWND growth, flight size
694 # and all sorts of things. Go look at the code and
695 # see. I have used this to produce interesting
696 # charts and graphs as well :->
698 # I have not yet committed the tools to get and print
699 # the logs, I will do that eventually .. before then
700 # if you want them send me an email rrs@freebsd.org
701 # You basically must have ktr(4) enabled for these
702 # and you then set the sysctl to turn on/off various
703 # logging bits. Use ktrdump(8) to pull the log and run
704 # it through a display program.. and graphs and other
707 options SCTP_LOCK_LOGGING
708 options SCTP_MBUF_LOGGING
709 options SCTP_MBCNT_LOGGING
710 options SCTP_PACKET_LOGGING
711 options SCTP_LTRACE_CHUNKS
712 options SCTP_LTRACE_ERRORS
715 # altq(9). Enable the base part of the hooks with the ALTQ option.
716 # Individual disciplines must be built into the base system and can not be
717 # loaded as modules at this point. ALTQ requires a stable TSC so if yours is
718 # broken or changes with CPU throttling then you must also have the ALTQ_NOPCC
721 options ALTQ_CBQ # Class Based Queueing
722 options ALTQ_RED # Random Early Detection
723 options ALTQ_RIO # RED In/Out
724 options ALTQ_CODEL # CoDel Active Queueing
725 options ALTQ_HFSC # Hierarchical Packet Scheduler
726 options ALTQ_FAIRQ # Fair Packet Scheduler
727 options ALTQ_CDNR # Traffic conditioner
728 options ALTQ_PRIQ # Priority Queueing
729 options ALTQ_NOPCC # Required if the TSC is unusable
732 # netgraph(4). Enable the base netgraph code with the NETGRAPH option.
733 # Individual node types can be enabled with the corresponding option
734 # listed below; however, this is not strictly necessary as netgraph
735 # will automatically load the corresponding KLD module if the node type
736 # is not already compiled into the kernel. Each type below has a
737 # corresponding man page, e.g., ng_async(8).
738 options NETGRAPH # netgraph(4) system
739 options NETGRAPH_DEBUG # enable extra debugging, this
740 # affects netgraph(4) and nodes
742 options NETGRAPH_ASYNC
743 options NETGRAPH_ATMLLC
744 options NETGRAPH_ATM_ATMPIF
745 options NETGRAPH_BLUETOOTH # ng_bluetooth(4)
746 options NETGRAPH_BLUETOOTH_BT3C # ng_bt3c(4)
747 options NETGRAPH_BLUETOOTH_HCI # ng_hci(4)
748 options NETGRAPH_BLUETOOTH_L2CAP # ng_l2cap(4)
749 options NETGRAPH_BLUETOOTH_SOCKET # ng_btsocket(4)
750 options NETGRAPH_BLUETOOTH_UBT # ng_ubt(4)
751 options NETGRAPH_BLUETOOTH_UBTBCMFW # ubtbcmfw(4)
753 options NETGRAPH_BRIDGE
755 options NETGRAPH_CISCO
756 options NETGRAPH_DEFLATE
757 options NETGRAPH_DEVICE
758 options NETGRAPH_ECHO
759 options NETGRAPH_EIFACE
760 options NETGRAPH_ETHER
761 options NETGRAPH_FRAME_RELAY
763 options NETGRAPH_GIF_DEMUX
764 options NETGRAPH_HOLE
765 options NETGRAPH_IFACE
766 options NETGRAPH_IP_INPUT
767 options NETGRAPH_IPFW
768 options NETGRAPH_KSOCKET
769 options NETGRAPH_L2TP
771 options NETGRAPH_MPPC_COMPRESSION
772 options NETGRAPH_MPPC_ENCRYPTION
773 options NETGRAPH_NETFLOW
775 options NETGRAPH_ONE2MANY
776 options NETGRAPH_PATCH
777 options NETGRAPH_PIPE
779 options NETGRAPH_PPPOE
780 options NETGRAPH_PPTPGRE
781 options NETGRAPH_PRED1
782 options NETGRAPH_RFC1490
783 options NETGRAPH_SOCKET
784 options NETGRAPH_SPLIT
785 options NETGRAPH_SPPP
787 options NETGRAPH_TCPMSS
791 options NETGRAPH_VLAN
793 # NgATM - Netgraph ATM
795 options NGATM_ATMBASE
801 device mn # Munich32x/Falc54 Nx64kbit/sec cards.
803 # Network stack virtualization.
805 options VNET_DEBUG # debug for VIMAGE
808 # Network interfaces:
809 # The `loop' device is MANDATORY when networking is enabled.
812 # The `ether' device provides generic code to handle
813 # Ethernets; it is MANDATORY when an Ethernet device driver is
814 # configured or token-ring is enabled.
817 # The `vlan' device implements the VLAN tagging of Ethernet frames
818 # according to IEEE 802.1Q.
821 # The `vxlan' device implements the VXLAN encapsulation of Ethernet
822 # frames in UDP packets according to RFC7348.
825 # The `wlan' device provides generic code to support 802.11
826 # drivers, including host AP mode; it is MANDATORY for the wi,
827 # and ath drivers and will eventually be required by all 802.11 drivers.
829 options IEEE80211_DEBUG #enable debugging msgs
830 options IEEE80211_AMPDU_AGE #age frames in AMPDU reorder q's
831 options IEEE80211_SUPPORT_MESH #enable 802.11s D3.0 support
832 options IEEE80211_SUPPORT_TDMA #enable TDMA support
834 # The `wlan_wep', `wlan_tkip', and `wlan_ccmp' devices provide
835 # support for WEP, TKIP, and AES-CCMP crypto protocols optionally
836 # used with 802.11 devices that depend on the `wlan' module.
841 # The `wlan_xauth' device provides support for external (i.e. user-mode)
842 # authenticators for use with 802.11 drivers that use the `wlan'
843 # module and support 802.1x and/or WPA security protocols.
846 # The `wlan_acl' device provides a MAC-based access control mechanism
847 # for use with 802.11 drivers operating in ap mode and using the
849 # The 'wlan_amrr' device provides AMRR transmit rate control algorithm
856 # The `fddi' device provides generic code to support FDDI.
859 # The `arcnet' device provides generic code to support Arcnet.
862 # The `sppp' device serves a similar role for certain types
863 # of synchronous PPP links (like `cx', `ar').
866 # The `bpf' device enables the Berkeley Packet Filter. Be
867 # aware of the legal and administrative consequences of enabling this
868 # option. DHCP requires bpf.
871 # The `netmap' device implements memory-mapped access to network
872 # devices from userspace, enabling wire-speed packet capture and
873 # generation even at 10Gbit/s. Requires support in the device
874 # driver. Supported drivers are ixgbe, e1000, re.
877 # The `disc' device implements a minimal network interface,
878 # which throws away all packets sent and never receives any. It is
879 # included for testing and benchmarking purposes.
882 # The `epair' device implements a virtual back-to-back connected Ethernet
883 # like interface pair.
886 # The `edsc' device implements a minimal Ethernet interface,
887 # which discards all packets sent and receives none.
890 # The `tap' device is a pty-like virtual Ethernet interface
893 # The `tun' device implements (user-)ppp and nos-tun(8)
896 # The `gif' device implements IPv6 over IP4 tunneling,
897 # IPv4 over IPv6 tunneling, IPv4 over IPv4 tunneling and
898 # IPv6 over IPv6 tunneling.
899 # The `gre' device implements GRE (Generic Routing Encapsulation) tunneling,
900 # as specified in the RFC 2784 and RFC 2890.
901 # The `me' device implements Minimal Encapsulation within IPv4 as
902 # specified in the RFC 2004.
903 # The XBONEHACK option allows the same pair of addresses to be configured on
904 # multiple gif interfaces.
910 # The `stf' device implements 6to4 encapsulation.
913 # The pf packet filter consists of three devices:
914 # The `pf' device provides /dev/pf and the firewall code itself.
915 # The `pflog' device provides the pflog0 interface which logs packets.
916 # The `pfsync' device provides the pfsync0 interface used for
917 # synchronization of firewall state tables (over the net).
925 # Common Address Redundancy Protocol. See carp(4) for more details.
931 # Link aggregation interface.
935 # Internet family options:
937 # MROUTING enables the kernel multicast packet forwarder, which works
938 # with mrouted and XORP.
940 # IPFIREWALL enables support for IP firewall construction, in
941 # conjunction with the `ipfw' program. IPFIREWALL_VERBOSE sends
942 # logged packets to the system logger. IPFIREWALL_VERBOSE_LIMIT
943 # limits the number of times a matching entry can be logged.
945 # WARNING: IPFIREWALL defaults to a policy of "deny ip from any to any"
946 # and if you do not add other rules during startup to allow access,
947 # YOU WILL LOCK YOURSELF OUT. It is suggested that you set firewall_type=open
948 # in /etc/rc.conf when first enabling this feature, then refining the
949 # firewall rules in /etc/rc.firewall after you've tested that the new kernel
950 # feature works properly.
952 # IPFIREWALL_DEFAULT_TO_ACCEPT causes the default rule (at boot) to
953 # allow everything. Use with care, if a cracker can crash your
954 # firewall machine, they can get to your protected machines. However,
955 # if you are using it as an as-needed filter for specific problems as
956 # they arise, then this may be for you. Changing the default to 'allow'
957 # means that you won't get stuck if the kernel and /sbin/ipfw binary get
960 # IPDIVERT enables the divert IP sockets, used by ``ipfw divert''. It
961 # depends on IPFIREWALL if compiled into the kernel.
963 # IPFIREWALL_NAT adds support for in kernel nat in ipfw, and it requires
966 # IPFIREWALL_NAT64 adds support for in kernel NAT64 in ipfw.
968 # IPFIREWALL_NPTV6 adds support for in kernel NPTv6 in ipfw.
970 # IPFIREWALL_PMOD adds support for protocols modification module. Currently
971 # it supports only TCP MSS modification.
973 # IPSTEALTH enables code to support stealth forwarding (i.e., forwarding
974 # packets without touching the TTL). This can be useful to hide firewalls
975 # from traceroute and similar tools.
977 # PF_DEFAULT_TO_DROP causes the default pf(4) rule to deny everything.
979 # TCPDEBUG enables code which keeps traces of the TCP state machine
980 # for sockets with the SO_DEBUG option set, which can then be examined
981 # using the trpt(8) utility.
983 # TCPPCAP enables code which keeps the last n packets sent and received
986 # TCP_HHOOK enables the hhook(9) framework hooks for the TCP stack.
988 # RADIX_MPATH provides support for equal-cost multi-path routing.
990 options MROUTING # Multicast routing
991 options IPFIREWALL #firewall
992 options IPFIREWALL_VERBOSE #enable logging to syslogd(8)
993 options IPFIREWALL_VERBOSE_LIMIT=100 #limit verbosity
994 options IPFIREWALL_DEFAULT_TO_ACCEPT #allow everything by default
995 options IPFIREWALL_NAT #ipfw kernel nat support
996 options IPFIREWALL_NAT64 #ipfw kernel NAT64 support
997 options IPFIREWALL_NPTV6 #ipfw kernel IPv6 NPT support
998 options IPDIVERT #divert sockets
999 options IPFILTER #ipfilter support
1000 options IPFILTER_LOG #ipfilter logging
1001 options IPFILTER_LOOKUP #ipfilter pools
1002 options IPFILTER_DEFAULT_BLOCK #block all packets by default
1003 options IPSTEALTH #support for stealth forwarding
1004 options PF_DEFAULT_TO_DROP #drop everything by default
1010 # The MBUF_STRESS_TEST option enables options which create
1011 # various random failures / extreme cases related to mbuf
1012 # functions. See mbuf(9) for a list of available test cases.
1013 # MBUF_PROFILING enables code to profile the mbuf chains
1014 # exiting the system (via participating interfaces) and
1015 # return a logarithmic histogram of monitored parameters
1016 # (e.g. packet size, wasted space, number of mbufs in chain).
1017 options MBUF_STRESS_TEST
1018 options MBUF_PROFILING
1020 # Statically link in accept filters
1021 options ACCEPT_FILTER_DATA
1022 options ACCEPT_FILTER_DNS
1023 options ACCEPT_FILTER_HTTP
1025 # TCP_SIGNATURE adds support for RFC 2385 (TCP-MD5) digests. These are
1026 # carried in TCP option 19. This option is commonly used to protect
1027 # TCP sessions (e.g. BGP) where IPSEC is not available nor desirable.
1028 # This is enabled on a per-socket basis using the TCP_MD5SIG socket option.
1029 # This requires the use of 'device crypto' and either 'options IPSEC' or
1030 # 'options IPSEC_SUPPORT'.
1031 options TCP_SIGNATURE #include support for RFC 2385
1033 # DUMMYNET enables the "dummynet" bandwidth limiter. You need IPFIREWALL
1034 # as well. See dummynet(4) and ipfw(8) for more info. When you run
1035 # DUMMYNET it is advisable to also have at least "options HZ=1000" to achieve
1036 # a smooth scheduling of the traffic.
1039 #####################################################################
1040 # FILESYSTEM OPTIONS
1043 # Only the root filesystem needs to be statically compiled or preloaded
1044 # as module; everything else will be automatically loaded at mount
1045 # time. Some people still prefer to statically compile other
1046 # filesystems as well.
1048 # NB: The UNION filesystem was known to be buggy in the past. It is now
1049 # being actively maintained, although there are still some issues being
1053 # One of these is mandatory:
1054 options FFS #Fast filesystem
1055 options NFSCL #Network File System client
1057 # The rest are optional:
1058 options AUTOFS #Automounter filesystem
1059 options CD9660 #ISO 9660 filesystem
1060 options FDESCFS #File descriptor filesystem
1061 options FUSE #FUSE support module
1062 options MSDOSFS #MS DOS File System (FAT, FAT32)
1063 options NFSLOCKD #Network Lock Manager
1064 options NFSD #Network Filesystem Server
1065 options KGSSAPI #Kernel GSSAPI implementation
1067 options NULLFS #NULL filesystem
1068 options PROCFS #Process filesystem (requires PSEUDOFS)
1069 options PSEUDOFS #Pseudo-filesystem framework
1070 options PSEUDOFS_TRACE #Debugging support for PSEUDOFS
1071 options SMBFS #SMB/CIFS filesystem
1072 options TMPFS #Efficient memory filesystem
1073 options UDF #Universal Disk Format
1074 options UNIONFS #Union filesystem
1075 # The xFS_ROOT options REQUIRE the associated ``options xFS''
1076 options NFS_ROOT #NFS usable as root device
1078 # Soft updates is a technique for improving filesystem speed and
1079 # making abrupt shutdown less risky.
1083 # Extended attributes allow additional data to be associated with files,
1084 # and is used for ACLs, Capabilities, and MAC labels.
1085 # See src/sys/ufs/ufs/README.extattr for more information.
1087 options UFS_EXTATTR_AUTOSTART
1089 # Access Control List support for UFS filesystems. The current ACL
1090 # implementation requires extended attribute support, UFS_EXTATTR,
1091 # for the underlying filesystem.
1092 # See src/sys/ufs/ufs/README.acls for more information.
1095 # Directory hashing improves the speed of operations on very large
1096 # directories at the expense of some memory.
1099 # Gjournal-based UFS journaling support.
1100 options UFS_GJOURNAL
1102 # Make space in the kernel for a root filesystem on a md device.
1103 # Define to the number of kilobytes to reserve for the filesystem.
1104 # This is now optional.
1105 # If not defined, the root filesystem passed in as the MFS_IMAGE makeoption
1106 # will be automatically embedded in the kernel during linking. Its exact size
1107 # will be consumed within the kernel.
1108 # If defined, the old way of embedding the filesystem in the kernel will be
1109 # used. That is to say MD_ROOT_SIZE KB will be allocated in the kernel and
1110 # later, the filesystem image passed in as the MFS_IMAGE makeoption will be
1111 # dd'd into the reserved space if it fits.
1112 options MD_ROOT_SIZE=10
1114 # Make the md device a potential root device, either with preloaded
1115 # images of type mfs_root or md_root.
1118 # Write-protect the md root device so that it may not be mounted writeable.
1119 options MD_ROOT_READONLY
1121 # Disk quotas are supported when this option is enabled.
1122 options QUOTA #enable disk quotas
1124 # If you are running a machine just as a fileserver for PC and MAC
1125 # users, using SAMBA, you may consider setting this option
1126 # and keeping all those users' directories on a filesystem that is
1127 # mounted with the suiddir option. This gives new files the same
1128 # ownership as the directory (similar to group). It's a security hole
1129 # if you let these users run programs, so confine it to file-servers
1130 # (but it'll save you lots of headaches in those cases). Root owned
1131 # directories are exempt and X bits are cleared. The suid bit must be
1132 # set on the directory as well; see chmod(1). PC owners can't see/set
1133 # ownerships so they keep getting their toes trodden on. This saves
1134 # you all the support calls as the filesystem it's used on will act as
1135 # they expect: "It's my dir so it must be my file".
1140 options NFS_MINATTRTIMO=3 # VREG attrib cache timeout in sec
1141 options NFS_MAXATTRTIMO=60
1142 options NFS_MINDIRATTRTIMO=30 # VDIR attrib cache timeout in sec
1143 options NFS_MAXDIRATTRTIMO=60
1144 options NFS_DEBUG # Enable NFS Debugging
1147 # Add support for the EXT2FS filesystem of Linux fame. Be a bit
1148 # careful with this - the ext2fs code has a tendency to lag behind
1149 # changes and not be exercised very much, so mounting read/write could
1150 # be dangerous (and even mounting read only could result in panics.)
1154 # Cryptographically secure random number generator; /dev/random
1157 # The system memory devices; /dev/mem, /dev/kmem
1160 # The kernel symbol table device; /dev/ksyms
1163 # Optional character code conversion support with LIBICONV.
1164 # Each option requires their base file system and LIBICONV.
1165 options CD9660_ICONV
1166 options MSDOSFS_ICONV
1170 #####################################################################
1173 # Real time extensions added in the 1993 POSIX
1174 # _KPOSIX_PRIORITY_SCHEDULING: Build in _POSIX_PRIORITY_SCHEDULING
1176 options _KPOSIX_PRIORITY_SCHEDULING
1177 # p1003_1b_semaphores are very experimental,
1178 # user should be ready to assist in debugging if problems arise.
1179 options P1003_1B_SEMAPHORES
1181 # POSIX message queue
1182 options P1003_1B_MQUEUE
1184 #####################################################################
1185 # SECURITY POLICY PARAMETERS
1187 # Support for BSM audit
1190 # Support for Mandatory Access Control (MAC):
1193 options MAC_BSDEXTENDED
1198 options MAC_PARTITION
1200 options MAC_SEEOTHERUIDS
1204 # Support for Capsicum
1205 options CAPABILITIES # fine-grained rights on file descriptors
1206 options CAPABILITY_MODE # sandboxes with no global namespace access
1209 #####################################################################
1212 # The granularity of operation is controlled by the kernel option HZ whose
1213 # default value (1000 on most architectures) means a granularity of 1ms
1214 # (1s/HZ). Historically, the default was 100, but finer granularity is
1215 # required for DUMMYNET and other systems on modern hardware. There are
1216 # reasonable arguments that HZ should, in fact, be 100 still; consider,
1217 # that reducing the granularity too much might cause excessive overhead in
1218 # clock interrupt processing, potentially causing ticks to be missed and thus
1219 # actually reducing the accuracy of operation.
1223 # Enable support for the kernel PLL to use an external PPS signal,
1224 # under supervision of [x]ntpd(8)
1225 # More info in ntpd documentation: http://www.eecis.udel.edu/~ntp
1229 # Enable support for generic feed-forward clocks in the kernel.
1230 # The feed-forward clock support is an alternative to the feedback oriented
1231 # ntpd/system clock approach, and is to be used with a feed-forward
1232 # synchronization algorithm such as the RADclock:
1233 # More info here: http://www.synclab.org/radclock
1238 #####################################################################
1241 # SCSI DEVICE CONFIGURATION
1243 # The SCSI subsystem consists of the `base' SCSI code, a number of
1244 # high-level SCSI device `type' drivers, and the low-level host-adapter
1245 # device drivers. The host adapters are listed in the ISA and PCI
1246 # device configuration sections below.
1248 # It is possible to wire down your SCSI devices so that a given bus,
1249 # target, and LUN always come on line as the same device unit. In
1250 # earlier versions the unit numbers were assigned in the order that
1251 # the devices were probed on the SCSI bus. This means that if you
1252 # removed a disk drive, you may have had to rewrite your /etc/fstab
1253 # file, and also that you had to be careful when adding a new disk
1254 # as it may have been probed earlier and moved your device configuration
1255 # around. (See also option GEOM_VOL for a different solution to this
1258 # This old behavior is maintained as the default behavior. The unit
1259 # assignment begins with the first non-wired down unit for a device
1260 # type. For example, if you wire a disk as "da3" then the first
1261 # non-wired disk will be assigned da4.
1263 # The syntax for wiring down devices is:
1265 hint.scbus.0.at="ahc0"
1266 hint.scbus.1.at="ahc1"
1267 hint.scbus.1.bus="0"
1268 hint.scbus.3.at="ahc2"
1269 hint.scbus.3.bus="0"
1270 hint.scbus.2.at="ahc2"
1271 hint.scbus.2.bus="1"
1272 hint.da.0.at="scbus0"
1273 hint.da.0.target="0"
1275 hint.da.1.at="scbus3"
1276 hint.da.1.target="1"
1277 hint.da.2.at="scbus2"
1278 hint.da.2.target="3"
1279 hint.sa.1.at="scbus1"
1280 hint.sa.1.target="6"
1282 # "units" (SCSI logical unit number) that are not specified are
1283 # treated as if specified as LUN 0.
1285 # All SCSI devices allocate as many units as are required.
1287 # The ch driver drives SCSI Media Changer ("jukebox") devices.
1289 # The da driver drives SCSI Direct Access ("disk") and Optical Media
1292 # The sa driver drives SCSI Sequential Access ("tape") devices.
1294 # The cd driver drives SCSI Read Only Direct Access ("cd") devices.
1296 # The ses driver drives SCSI Environment Services ("ses") and
1297 # SAF-TE ("SCSI Accessible Fault-Tolerant Enclosure") devices.
1299 # The pt driver drives SCSI Processor devices.
1301 # The sg driver provides a passthrough API that is compatible with the
1302 # Linux SG driver. It will work in conjunction with the COMPAT_LINUX
1303 # option to run linux SG apps. It can also stand on its own and provide
1304 # source level API compatibility for porting apps to FreeBSD.
1306 # Target Mode support is provided here but also requires that a SIM
1307 # (SCSI Host Adapter Driver) provide support as well.
1309 # The targ driver provides target mode support as a Processor type device.
1310 # It exists to give the minimal context necessary to respond to Inquiry
1311 # commands. There is a sample user application that shows how the rest
1312 # of the command support might be done in /usr/share/examples/scsi_target.
1314 # The targbh driver provides target mode support and exists to respond
1315 # to incoming commands that do not otherwise have a logical unit assigned
1318 # The pass driver provides a passthrough API to access the CAM subsystem.
1320 device scbus #base SCSI code
1321 device ch #SCSI media changers
1322 device da #SCSI direct access devices (aka disks)
1323 device sa #SCSI tapes
1324 device cd #SCSI CD-ROMs
1325 device ses #Enclosure Services (SES and SAF-TE)
1326 device pt #SCSI processor
1327 device targ #SCSI Target Mode Code
1328 device targbh #SCSI Target Mode Blackhole Device
1329 device pass #CAM passthrough driver
1330 device sg #Linux SCSI passthrough
1331 device ctl #CAM Target Layer
1334 # debugging options:
1335 # CAMDEBUG Compile in all possible debugging.
1336 # CAM_DEBUG_COMPILE Debug levels to compile in.
1337 # CAM_DEBUG_FLAGS Debug levels to enable on boot.
1338 # CAM_DEBUG_BUS Limit debugging to the given bus.
1339 # CAM_DEBUG_TARGET Limit debugging to the given target.
1340 # CAM_DEBUG_LUN Limit debugging to the given lun.
1341 # CAM_DEBUG_DELAY Delay in us after printing each debug line.
1343 # CAM_MAX_HIGHPOWER: Maximum number of concurrent high power (start unit) cmds
1344 # SCSI_NO_SENSE_STRINGS: When defined disables sense descriptions
1345 # SCSI_NO_OP_STRINGS: When defined disables opcode descriptions
1346 # SCSI_DELAY: The number of MILLISECONDS to freeze the SIM (scsi adapter)
1347 # queue after a bus reset, and the number of milliseconds to
1348 # freeze the device queue after a bus device reset. This
1349 # can be changed at boot and runtime with the
1350 # kern.cam.scsi_delay tunable/sysctl.
1352 options CAM_DEBUG_COMPILE=-1
1353 options CAM_DEBUG_FLAGS=(CAM_DEBUG_INFO|CAM_DEBUG_PROBE|CAM_DEBUG_PERIPH)
1354 options CAM_DEBUG_BUS=-1
1355 options CAM_DEBUG_TARGET=-1
1356 options CAM_DEBUG_LUN=-1
1357 options CAM_DEBUG_DELAY=1
1358 options CAM_MAX_HIGHPOWER=4
1359 options SCSI_NO_SENSE_STRINGS
1360 options SCSI_NO_OP_STRINGS
1361 options SCSI_DELAY=5000 # Be pessimistic about Joe SCSI device
1362 options CAM_IOSCHED_DYNAMIC
1364 # Options for the CAM CDROM driver:
1365 # CHANGER_MIN_BUSY_SECONDS: Guaranteed minimum time quantum for a changer LUN
1366 # CHANGER_MAX_BUSY_SECONDS: Maximum time quantum per changer LUN, only
1367 # enforced if there is I/O waiting for another LUN
1368 # The compiled in defaults for these variables are 2 and 10 seconds,
1371 # These can also be changed on the fly with the following sysctl variables:
1372 # kern.cam.cd.changer.min_busy_seconds
1373 # kern.cam.cd.changer.max_busy_seconds
1375 options CHANGER_MIN_BUSY_SECONDS=2
1376 options CHANGER_MAX_BUSY_SECONDS=10
1378 # Options for the CAM sequential access driver:
1379 # SA_IO_TIMEOUT: Timeout for read/write/wfm operations, in minutes
1380 # SA_SPACE_TIMEOUT: Timeout for space operations, in minutes
1381 # SA_REWIND_TIMEOUT: Timeout for rewind operations, in minutes
1382 # SA_ERASE_TIMEOUT: Timeout for erase operations, in minutes
1383 # SA_1FM_AT_EOD: Default to model which only has a default one filemark at EOT.
1384 options SA_IO_TIMEOUT=4
1385 options SA_SPACE_TIMEOUT=60
1386 options SA_REWIND_TIMEOUT=(2*60)
1387 options SA_ERASE_TIMEOUT=(4*60)
1388 options SA_1FM_AT_EOD
1390 # Optional timeout for the CAM processor target (pt) device
1391 # This is specified in seconds. The default is 60 seconds.
1392 options SCSI_PT_DEFAULT_TIMEOUT=60
1394 # Optional enable of doing SES passthrough on other devices (e.g., disks)
1396 # Normally disabled because a lot of newer SCSI disks report themselves
1397 # as having SES capabilities, but this can then clot up attempts to build
1398 # a topology with the SES device that's on the box these drives are in....
1399 options SES_ENABLE_PASSTHROUGH
1402 #####################################################################
1403 # MISCELLANEOUS DEVICES AND OPTIONS
1405 device pty #BSD-style compatibility pseudo ttys
1406 device nmdm #back-to-back tty devices
1407 device md #Memory/malloc disk
1408 device snp #Snoop device - to look at pty/vty/etc..
1409 device ccd #Concatenated disk driver
1410 device firmware #firmware(9) support
1412 # Kernel side iconv library
1415 # Size of the kernel message buffer. Should be N * pagesize.
1416 options MSGBUF_SIZE=40960
1419 #####################################################################
1420 # HARDWARE BUS CONFIGURATION
1423 # PCI bus & PCI options:
1426 options PCI_HP # PCI-Express native HotPlug
1427 options PCI_IOV # PCI SR-IOV support
1430 #####################################################################
1431 # HARDWARE DEVICE CONFIGURATION
1433 # For ISA the required hints are listed.
1434 # PCI, CardBus, SD/MMC and pccard are self identifying buses, so
1435 # no hints are needed.
1438 # Mandatory devices:
1441 # These options are valid for other keyboard drivers as well.
1442 options KBD_DISABLE_KEYMAP_LOAD # refuse to load a keymap
1443 options KBD_INSTALL_CDEV # install a CDEV entry in /dev
1445 device kbdmux # keyboard multiplexer
1446 options KBDMUX_DFLT_KEYMAP # specify the built-in keymap
1447 makeoptions KBDMUX_DFLT_KEYMAP=it.iso
1449 options FB_DEBUG # Frame buffer debugging
1451 device splash # Splash screen and screen saver support
1453 # Various screen savers.
1466 # The syscons console driver (SCO color console compatible).
1469 options MAXCONS=16 # number of virtual consoles
1470 options SC_ALT_MOUSE_IMAGE # simplified mouse cursor in text mode
1471 options SC_DFLT_FONT # compile font in
1472 makeoptions SC_DFLT_FONT=cp850
1473 options SC_DISABLE_KDBKEY # disable `debug' key
1474 options SC_DISABLE_REBOOT # disable reboot key sequence
1475 options SC_HISTORY_SIZE=200 # number of history buffer lines
1476 options SC_MOUSE_CHAR=0x3 # char code for text mode mouse cursor
1477 options SC_PIXEL_MODE # add support for the raster text mode
1479 # The following options will let you change the default colors of syscons.
1480 options SC_NORM_ATTR=(FG_GREEN|BG_BLACK)
1481 options SC_NORM_REV_ATTR=(FG_YELLOW|BG_GREEN)
1482 options SC_KERNEL_CONS_ATTR=(FG_RED|BG_BLACK)
1483 options SC_KERNEL_CONS_REV_ATTR=(FG_BLACK|BG_RED)
1485 # The following options will let you change the default behavior of
1486 # cut-n-paste feature
1487 options SC_CUT_SPACES2TABS # convert leading spaces into tabs
1488 options SC_CUT_SEPCHARS=\"x09\" # set of characters that delimit words
1489 # (default is single space - \"x20\")
1491 # If you have a two button mouse, you may want to add the following option
1492 # to use the right button of the mouse to paste text.
1493 options SC_TWOBUTTON_MOUSE
1495 # You can selectively disable features in syscons.
1496 options SC_NO_CUTPASTE
1497 options SC_NO_FONT_LOADING
1498 options SC_NO_HISTORY
1499 options SC_NO_MODE_CHANGE
1500 options SC_NO_SYSMOUSE
1501 options SC_NO_SUSPEND_VTYSWITCH
1504 # 0x80 Put the video card in the VESA 800x600 dots, 16 color mode
1505 # 0x100 Probe for a keyboard device periodically if one is not present
1507 # Enable experimental features of the syscons terminal emulator (teken).
1508 options TEKEN_CONS25 # cons25-style terminal emulation
1509 options TEKEN_UTF8 # UTF-8 output handling
1511 # The vt video console driver.
1513 options VT_ALT_TO_ESC_HACK=1 # Prepend ESC sequence to ALT keys
1514 options VT_MAXWINDOWS=16 # Number of virtual consoles
1515 options VT_TWOBUTTON_MOUSE # Use right mouse button to paste
1517 # The following options set the default framebuffer size.
1518 options VT_FB_DEFAULT_HEIGHT=480
1519 options VT_FB_DEFAULT_WIDTH=640
1521 # The following options will let you change the default vt terminal colors.
1522 options TERMINAL_NORM_ATTR=(FG_GREEN|BG_BLACK)
1523 options TERMINAL_KERN_ATTR=(FG_LIGHTRED|BG_BLACK)
1530 # SCSI host adapters:
1532 # adv: All Narrow SCSI bus AdvanSys controllers.
1533 # adw: Second Generation AdvanSys controllers including the ADV940UW.
1534 # aha: Adaptec 154x/1535/1640
1535 # ahc: Adaptec 274x/284x/2910/293x/294x/394x/3950x/3960x/398X/4944/
1536 # 19160x/29160x, aic7770/aic78xx
1537 # ahd: Adaptec 29320/39320 Controllers.
1538 # aic: Adaptec 6260/6360, APA-1460 (PC Card)
1539 # bt: Most Buslogic controllers: including BT-445, BT-54x, BT-64x, BT-74x,
1540 # BT-75x, BT-946, BT-948, BT-956, BT-958, SDC3211B, SDC3211F, SDC3222F
1541 # esp: Emulex ESP, NCR 53C9x and QLogic FAS families based controllers
1542 # including the AMD Am53C974 (found on devices such as the Tekram
1543 # DC-390(T)) and the Sun ESP and FAS families of controllers
1544 # isp: Qlogic ISP 1020, 1040 and 1040B PCI SCSI host adapters,
1545 # ISP 1240 Dual Ultra SCSI, ISP 1080 and 1280 (Dual) Ultra2,
1546 # ISP 12160 Ultra3 SCSI,
1547 # Qlogic ISP 2100 and ISP 2200 1Gb Fibre Channel host adapters.
1548 # Qlogic ISP 2300 and ISP 2312 2Gb Fibre Channel host adapters.
1549 # Qlogic ISP 2322 and ISP 6322 2Gb Fibre Channel host adapters.
1550 # ispfw: Firmware module for Qlogic host adapters
1551 # mpt: LSI-Logic MPT/Fusion 53c1020 or 53c1030 Ultra4
1552 # or FC9x9 Fibre Channel host adapters.
1553 # ncr: NCR 53C810, 53C825 self-contained SCSI host adapters.
1554 # sym: Symbios/Logic 53C8XX family of PCI-SCSI I/O processors:
1555 # 53C810, 53C810A, 53C815, 53C825, 53C825A, 53C860, 53C875,
1556 # 53C876, 53C885, 53C895, 53C895A, 53C896, 53C897, 53C1510D,
1557 # 53C1010-33, 53C1010-66.
1558 # trm: Tekram DC395U/UW/F DC315U adapters.
1561 # Note that the order is important in order for Buslogic ISA cards to be
1566 hint.bt.0.port="0x330"
1577 device iscsi_initiator
1579 hint.isp.0.disable="1"
1581 hint.isp.0.prefer_iomap="1"
1582 hint.isp.0.prefer_memmap="1"
1583 hint.isp.0.fwload_disable="1"
1584 hint.isp.0.ignore_nvram="1"
1585 hint.isp.0.fullduplex="1"
1586 hint.isp.0.topology="lport"
1587 hint.isp.0.topology="nport"
1588 hint.isp.0.topology="lport-only"
1589 hint.isp.0.topology="nport-only"
1590 # we can't get u_int64_t types, nor can we get strings if it's got
1591 # a leading 0x, hence this silly dodge.
1592 hint.isp.0.portwnn="w50000000aaaa0000"
1593 hint.isp.0.nodewnn="w50000000aaaa0001"
1600 # The aic7xxx driver will attempt to use memory mapped I/O for all PCI
1601 # controllers that have it configured only if this option is set. Unfortunately,
1602 # this doesn't work on some motherboards, which prevents it from being the
1604 options AHC_ALLOW_MEMIO
1606 # Dump the contents of the ahc controller configuration PROM.
1607 options AHC_DUMP_EEPROM
1609 # Bitmap of units to enable targetmode operations.
1610 options AHC_TMODE_ENABLE
1612 # Compile in Aic7xxx Debugging code.
1615 # Aic7xxx driver debugging options. See sys/dev/aic7xxx/aic7xxx.h
1616 options AHC_DEBUG_OPTS
1618 # Print register bitfields in debug output. Adds ~128k to driver
1620 options AHC_REG_PRETTY_PRINT
1622 # Compile in aic79xx debugging code.
1625 # Aic79xx driver debugging options. Adds ~215k to driver. See ahd(4).
1626 options AHD_DEBUG_OPTS=0xFFFFFFFF
1628 # Print human-readable register definitions when debugging
1629 options AHD_REG_PRETTY_PRINT
1631 # Bitmap of units to enable targetmode operations.
1632 options AHD_TMODE_ENABLE
1634 # The adw driver will attempt to use memory mapped I/O for all PCI
1635 # controllers that have it configured only if this option is set.
1636 options ADW_ALLOW_MEMIO
1638 # Options used in dev/iscsi (Software iSCSI stack)
1640 options ISCSI_INITIATOR_DEBUG=9
1642 # Options used in dev/isp/ (Qlogic SCSI/FC driver).
1644 # ISP_TARGET_MODE - enable target mode operation
1646 options ISP_TARGET_MODE=1
1648 # ISP_DEFAULT_ROLES - default role
1652 # both=3 (not supported currently)
1654 # ISP_INTERNAL_TARGET (trivial internal disk target, for testing)
1656 options ISP_DEFAULT_ROLES=0
1658 # Options used in dev/sym/ (Symbios SCSI driver).
1659 #options SYM_SETUP_LP_PROBE_MAP #-Low Priority Probe Map (bits)
1660 # Allows the ncr to take precedence
1661 # 1 (1<<0) -> 810a, 860
1662 # 2 (1<<1) -> 825a, 875, 885, 895
1663 # 4 (1<<2) -> 895a, 896, 1510d
1664 #options SYM_SETUP_SCSI_DIFF #-HVD support for 825a, 875, 885
1665 # disabled:0 (default), enabled:1
1666 #options SYM_SETUP_PCI_PARITY #-PCI parity checking
1667 # disabled:0, enabled:1 (default)
1668 #options SYM_SETUP_MAX_LUN #-Number of LUNs supported
1669 # default:8, range:[1..64]
1671 # The 'dpt' driver provides support for old DPT controllers (http://www.dpt.com/).
1672 # These have hardware RAID-{0,1,5} support, and do multi-initiator I/O.
1673 # The DPT controllers are commonly re-licensed under other brand-names -
1674 # some controllers by Olivetti, Dec, HP, AT&T, SNI, AST, Alphatronic, NEC and
1675 # Compaq are actually DPT controllers.
1677 # See src/sys/dev/dpt for debugging and other subtle options.
1678 # DPT_MEASURE_PERFORMANCE Enables a set of (semi)invasive metrics. Various
1679 # instruments are enabled. The tools in
1680 # /usr/sbin/dpt_* assume these to be enabled.
1681 # DPT_DEBUG_xxxx These are controllable from sys/dev/dpt/dpt.h
1682 # DPT_RESET_HBA Make "reset" actually reset the controller
1683 # instead of fudging it. Only enable this if you
1684 # are 100% certain you need it.
1689 #!CAM# options DPT_MEASURE_PERFORMANCE
1690 options DPT_RESET_HBA
1693 # Compaq "CISS" RAID controllers (SmartRAID 5* series)
1694 # These controllers have a SCSI-like interface, and require the
1695 # CAM infrastructure.
1700 # Intel Integrated RAID controllers.
1701 # This driver was developed and is maintained by Intel. Contacts
1702 # at Intel for this driver are
1703 # "Kannanthanam, Boji T" <boji.t.kannanthanam@intel.com> and
1704 # "Leubner, Achim" <achim.leubner@intel.com>.
1709 # Mylex AcceleRAID and eXtremeRAID controllers with v6 and later
1710 # firmware. These controllers have a SCSI-like interface, and require
1711 # the CAM infrastructure.
1716 # Compaq Smart RAID, Mylex DAC960 and AMI MegaRAID controllers. Only
1717 # one entry is needed; the code will find and configure all supported
1720 device ida # Compaq Smart RAID
1721 device mlx # Mylex DAC960
1722 device amr # AMI MegaRAID
1723 device amrp # SCSI Passthrough interface (optional, CAM req.)
1724 device mfi # LSI MegaRAID SAS
1725 device mfip # LSI MegaRAID SAS passthrough, requires CAM
1727 device mrsas # LSI/Avago MegaRAID SAS/SATA, 6Gb/s and 12Gb/s
1732 device twe # 3ware ATA RAID
1735 # Serial ATA host controllers:
1737 # ahci: Advanced Host Controller Interface (AHCI) compatible
1738 # mvs: Marvell 88SX50XX/88SX60XX/88SX70XX/SoC controllers
1739 # siis: SiliconImage SiI3124/SiI3132/SiI3531 controllers
1741 # These drivers are part of cam(4) subsystem. They supersede less featured
1742 # ata(4) subsystem drivers, supporting same hardware.
1749 # The 'ATA' driver supports all legacy ATA/ATAPI controllers, including
1750 # PC Card devices. You only need one "device ata" for it to find all
1751 # PCI and PC Card ATA/ATAPI devices on modern machines.
1752 # Alternatively, individual bus and chipset drivers may be chosen by using
1753 # the 'atacore' driver then selecting the drivers on a per vendor basis.
1754 # For example to build a system which only supports a VIA chipset,
1755 # omit 'ata' and include the 'atacore', 'atapci' and 'atavia' drivers.
1759 #device atacore # Core ATA functionality
1760 #device atacard # CARDBUS support
1761 #device ataisa # ISA bus support
1762 #device atapci # PCI bus support; only generic chipset support
1765 #device ataacard # ACARD
1766 #device ataacerlabs # Acer Labs Inc. (ALI)
1767 #device ataamd # American Micro Devices (AMD)
1768 #device ataati # ATI
1769 #device atacenatek # Cenatek
1770 #device atacypress # Cypress
1771 #device atacyrix # Cyrix
1772 #device atahighpoint # HighPoint
1773 #device ataintel # Intel
1774 #device ataite # Integrated Technology Inc. (ITE)
1775 #device atajmicron # JMicron
1776 #device atamarvell # Marvell
1777 #device atamicron # Micron
1778 #device atanational # National
1779 #device atanetcell # NetCell
1780 #device atanvidia # nVidia
1781 #device atapromise # Promise
1782 #device ataserverworks # ServerWorks
1783 #device atasiliconimage # Silicon Image Inc. (SiI) (formerly CMD)
1784 #device atasis # Silicon Integrated Systems Corp.(SiS)
1785 #device atavia # VIA Technologies Inc.
1788 # For older non-PCI, non-PnPBIOS systems, these are the hints lines to add:
1790 hint.ata.0.port="0x1f0"
1793 hint.ata.1.port="0x170"
1797 # The following options are valid on the ATA driver:
1799 # ATA_REQUEST_TIMEOUT: the number of seconds to wait for an ATA request
1800 # before timing out.
1802 #options ATA_REQUEST_TIMEOUT=10
1805 # Standard floppy disk controllers and floppy tapes, supports
1806 # the Y-E DATA External FDD (PC Card)
1810 hint.fdc.0.port="0x3F0"
1814 # FDC_DEBUG enables floppy debugging. Since the debug output is huge, you
1815 # gotta turn it actually on by setting the variable fd_debug with DDB,
1819 # Activate this line if you happen to have an Insight floppy tape.
1820 # Probing them proved to be dangerous for people with floppy disks only,
1821 # so it's "hidden" behind a flag:
1822 #hint.fdc.0.flags="1"
1824 # Specify floppy devices
1831 # uart: newbusified driver for serial interfaces. It consolidates the sio(4),
1832 # sab(4) and zs(4) drivers.
1836 # Options for uart(4)
1837 options UART_PPS_ON_CTS # Do time pulse capturing using CTS
1839 options UART_POLL_FREQ # Set polling rate, used when hw has
1840 # no interrupt support (50 Hz default).
1842 # The following hint should only be used for pure ISA devices. It is not
1843 # needed otherwise. Use of hints is strongly discouraged.
1844 hint.uart.0.at="isa"
1846 # The following 3 hints are used when the UART is a system device (i.e., a
1847 # console or debug port), but only on platforms that don't have any other
1848 # means to pass the information to the kernel. The unit number of the hint
1849 # is only used to bundle the hints together. There is no relation to the
1850 # unit number of the probed UART.
1851 hint.uart.0.port="0x3f8"
1852 hint.uart.0.flags="0x10"
1853 hint.uart.0.baud="115200"
1855 # `flags' for serial drivers that support consoles like sio(4) and uart(4):
1856 # 0x10 enable console support for this unit. Other console flags
1857 # (if applicable) are ignored unless this is set. Enabling
1858 # console support does not make the unit the preferred console.
1859 # Boot with -h or set boot_serial=YES in the loader. For sio(4)
1860 # specifically, the 0x20 flag can also be set (see above).
1861 # Currently, at most one unit can have console support; the
1862 # first one (in config file order) with this flag set is
1863 # preferred. Setting this flag for sio0 gives the old behavior.
1864 # 0x80 use this port for serial line gdb support in ddb. Also known
1868 # Options for serial drivers that support consoles:
1869 options BREAK_TO_DEBUGGER # A BREAK/DBG on the console goes to
1870 # ddb, if available.
1872 # Solaris implements a new BREAK which is initiated by a character
1873 # sequence CR ~ ^b which is similar to a familiar pattern used on
1874 # Sun servers by the Remote Console. There are FreeBSD extensions:
1875 # CR ~ ^p requests force panic and CR ~ ^r requests a clean reboot.
1876 options ALT_BREAK_TO_DEBUGGER
1878 # Serial Communications Controller
1879 # Supports the Siemens SAB 82532 and Zilog Z8530 multi-channel
1880 # communications controllers.
1883 # PCI Universal Communications driver
1884 # Supports various multi port PCI I/O cards.
1888 # Network interfaces:
1890 # MII bus support is required for many PCI Ethernet NICs,
1891 # namely those which use MII-compliant transceivers or implement
1892 # transceiver control interfaces that operate like an MII. Adding
1893 # "device miibus" to the kernel config pulls in support for the generic
1894 # miibus API, the common support for for bit-bang'ing the MII and all
1895 # of the PHY drivers, including a generic one for PHYs that aren't
1896 # specifically handled by an individual driver. Support for specific
1897 # PHYs may be built by adding "device mii", "device mii_bitbang" if
1898 # needed by the NIC driver and then adding the appropriate PHY driver.
1899 device mii # Minimal MII support
1900 device mii_bitbang # Common module for bit-bang'ing the MII
1901 device miibus # MII support w/ bit-bang'ing and all PHYs
1903 device acphy # Altima Communications AC101
1904 device amphy # AMD AM79c873 / Davicom DM910{1,2}
1905 device atphy # Attansic/Atheros F1
1906 device axphy # Asix Semiconductor AX88x9x
1907 device bmtphy # Broadcom BCM5201/BCM5202 and 3Com 3c905C
1908 device bnxt # Broadcom NetXtreme-C/NetXtreme-E
1909 device brgphy # Broadcom BCM54xx/57xx 1000baseTX
1910 device ciphy # Cicada/Vitesse CS/VSC8xxx
1911 device e1000phy # Marvell 88E1000 1000/100/10-BT
1912 device gentbi # Generic 10-bit 1000BASE-{LX,SX} fiber ifaces
1913 device icsphy # ICS ICS1889-1893
1914 device ip1000phy # IC Plus IP1000A/IP1001
1915 device jmphy # JMicron JMP211/JMP202
1916 device lxtphy # Level One LXT-970
1917 device mlphy # Micro Linear 6692
1918 device nsgphy # NatSemi DP8361/DP83865/DP83891
1919 device nsphy # NatSemi DP83840A
1920 device nsphyter # NatSemi DP83843/DP83815
1921 device pnaphy # HomePNA
1922 device qsphy # Quality Semiconductor QS6612
1923 device rdcphy # RDC Semiconductor R6040
1924 device rgephy # RealTek 8169S/8110S/8211B/8211C
1925 device rlphy # RealTek 8139
1926 device rlswitch # RealTek 8305
1927 device smcphy # SMSC LAN91C111
1928 device tdkphy # TDK 89Q2120
1929 device tlphy # Texas Instruments ThunderLAN
1930 device truephy # LSI TruePHY
1931 device xmphy # XaQti XMAC II
1933 # an: Aironet 4500/4800 802.11 wireless adapters. Supports the PCMCIA,
1934 # PCI and ISA varieties.
1935 # ae: Support for gigabit ethernet adapters based on the Attansic/Atheros
1936 # L2 PCI-Express FastEthernet controllers.
1937 # age: Support for gigabit ethernet adapters based on the Attansic/Atheros
1938 # L1 PCI express gigabit ethernet controllers.
1939 # alc: Support for Atheros AR8131/AR8132 PCIe ethernet controllers.
1940 # ale: Support for Atheros AR8121/AR8113/AR8114 PCIe ethernet controllers.
1941 # ath: Atheros a/b/g WiFi adapters (requires ath_hal and wlan)
1942 # bce: Broadcom NetXtreme II (BCM5706/BCM5708) PCI/PCIe Gigabit Ethernet
1944 # bfe: Broadcom BCM4401 Ethernet adapter.
1945 # bge: Support for gigabit ethernet adapters based on the Broadcom
1946 # BCM570x family of controllers, including the 3Com 3c996-T,
1947 # the Netgear GA302T, the SysKonnect SK-9D21 and SK-9D41, and
1948 # the embedded gigE NICs on Dell PowerEdge 2550 servers.
1949 # bnxt: Broadcom NetXtreme-C and NetXtreme-E PCIe 10/25/50G Ethernet adapters.
1950 # bxe: Broadcom NetXtreme II (BCM5771X/BCM578XX) PCIe 10Gb Ethernet
1952 # bwi: Broadcom BCM430* and BCM431* family of wireless adapters.
1953 # bwn: Broadcom BCM43xx family of wireless adapters.
1954 # cas: Sun Cassini/Cassini+ and National Semiconductor DP83065 Saturn
1955 # cm: Arcnet SMC COM90c26 / SMC COM90c56
1956 # (and SMC COM90c66 in '56 compatibility mode) adapters.
1957 # cxgb: Chelsio T3 based 1GbE/10GbE PCIe Ethernet adapters.
1958 # cxgbe:Chelsio T4, T5, and T6-based 1/10/25/40/100GbE PCIe Ethernet
1960 # cxgbev: Chelsio T4, T5, and T6-based PCIe Virtual Functions.
1961 # dc: Support for PCI fast ethernet adapters based on the DEC/Intel 21143
1962 # and various workalikes including:
1963 # the ADMtek AL981 Comet and AN985 Centaur, the ASIX Electronics
1964 # AX88140A and AX88141, the Davicom DM9100 and DM9102, the Lite-On
1965 # 82c168 and 82c169 PNIC, the Lite-On/Macronix LC82C115 PNIC II
1966 # and the Macronix 98713/98713A/98715/98715A/98725 PMAC. This driver
1967 # replaces the old al, ax, dm, pn and mx drivers. List of brands:
1968 # Digital DE500-BA, Kingston KNE100TX, D-Link DFE-570TX, SOHOware SFA110,
1969 # SVEC PN102-TX, CNet Pro110B, 120A, and 120B, Compex RL100-TX,
1970 # LinkSys LNE100TX, LNE100TX V2.0, Jaton XpressNet, Alfa Inc GFC2204,
1972 # de: Digital Equipment DC21040
1973 # em: Intel Pro/1000 Gigabit Ethernet 82542, 82543, 82544 based adapters.
1974 # ep: 3Com 3C509, 3C529, 3C556, 3C562D, 3C563D, 3C572, 3C574X, 3C579, 3C589
1975 # and PC Card devices using these chipsets.
1976 # ex: Intel EtherExpress Pro/10 and other i82595-based adapters,
1977 # Olicom Ethernet PC Card devices.
1978 # fe: Fujitsu MB86960A/MB86965A Ethernet
1979 # fpa: Support for the Digital DEFPA PCI FDDI. `device fddi' is also needed.
1980 # fxp: Intel EtherExpress Pro/100B
1981 # (hint of prefer_iomap can be done to prefer I/O instead of Mem mapping)
1982 # gem: Apple GMAC/Sun ERI/Sun GEM
1983 # hme: Sun HME (Happy Meal Ethernet)
1984 # jme: JMicron JMC260 Fast Ethernet/JMC250 Gigabit Ethernet based adapters.
1985 # le: AMD Am7900 LANCE and Am79C9xx PCnet
1986 # lge: Support for PCI gigabit ethernet adapters based on the Level 1
1987 # LXT1001 NetCellerator chipset. This includes the D-Link DGE-500SX,
1988 # SMC TigerCard 1000 (SMC9462SX), and some Addtron cards.
1989 # lio: Support for Cavium 23XX Ethernet adapters
1990 # malo: Marvell Libertas wireless NICs.
1991 # mwl: Marvell 88W8363 802.11n wireless NICs.
1992 # Requires the mwl firmware module
1993 # mwlfw: Marvell 88W8363 firmware
1994 # msk: Support for gigabit ethernet adapters based on the Marvell/SysKonnect
1995 # Yukon II Gigabit controllers, including 88E8021, 88E8022, 88E8061,
1996 # 88E8062, 88E8035, 88E8036, 88E8038, 88E8050, 88E8052, 88E8053,
1997 # 88E8055, 88E8056 and D-Link 560T/550SX.
1998 # lmc: Support for the LMC/SBE wide-area network interface cards.
1999 # mlx5: Mellanox ConnectX-4 and ConnectX-4 LX IB and Eth shared code module.
2000 # mlx5en:Mellanox ConnectX-4 and ConnectX-4 LX PCIe Ethernet adapters.
2001 # my: Myson Fast Ethernet (MTD80X, MTD89X)
2002 # nge: Support for PCI gigabit ethernet adapters based on the National
2003 # Semiconductor DP83820 and DP83821 chipset. This includes the
2004 # SMC EZ Card 1000 (SMC9462TX), D-Link DGE-500T, Asante FriendlyNet
2005 # GigaNIX 1000TA and 1000TPC, the Addtron AEG320T, the Surecom
2006 # EP-320G-TX and the Netgear GA622T.
2007 # oce: Emulex 10 Gbit adapters (OneConnect Ethernet)
2008 # pcn: Support for PCI fast ethernet adapters based on the AMD Am79c97x
2009 # PCnet-FAST, PCnet-FAST+, PCnet-FAST III, PCnet-PRO and PCnet-Home
2010 # chipsets. These can also be handled by the le(4) driver if the
2011 # pcn(4) driver is left out of the kernel. The le(4) driver does not
2012 # support the additional features like the MII bus and burst mode of
2013 # the PCnet-FAST and greater chipsets though.
2014 # ral: Ralink Technology IEEE 802.11 wireless adapter
2015 # re: RealTek 8139C+/8169/816xS/811xS/8101E PCI/PCIe Ethernet adapter
2016 # rl: Support for PCI fast ethernet adapters based on the RealTek 8129/8139
2017 # chipset. Note that the RealTek driver defaults to using programmed
2018 # I/O to do register accesses because memory mapped mode seems to cause
2019 # severe lockups on SMP hardware. This driver also supports the
2020 # Accton EN1207D `Cheetah' adapter, which uses a chip called
2021 # the MPX 5030/5038, which is either a RealTek in disguise or a
2022 # RealTek workalike. Note that the D-Link DFE-530TX+ uses the RealTek
2023 # chipset and is supported by this driver, not the 'vr' driver.
2024 # rtwn: RealTek wireless adapters.
2025 # rtwnfw: RealTek wireless firmware.
2026 # sf: Support for Adaptec Duralink PCI fast ethernet adapters based on the
2027 # Adaptec AIC-6915 "starfire" controller.
2028 # This includes dual and quad port cards, as well as one 100baseFX card.
2029 # Most of these are 64-bit PCI devices, except for one single port
2030 # card which is 32-bit.
2031 # sge: Silicon Integrated Systems SiS190/191 Fast/Gigabit Ethernet adapter
2032 # sis: Support for NICs based on the Silicon Integrated Systems SiS 900,
2033 # SiS 7016 and NS DP83815 PCI fast ethernet controller chips.
2034 # sk: Support for the SysKonnect SK-984x series PCI gigabit ethernet NICs.
2035 # This includes the SK-9841 and SK-9842 single port cards (single mode
2036 # and multimode fiber) and the SK-9843 and SK-9844 dual port cards
2037 # (also single mode and multimode).
2038 # The driver will autodetect the number of ports on the card and
2039 # attach each one as a separate network interface.
2040 # sn: Support for ISA and PC Card Ethernet devices using the
2041 # SMC91C90/92/94/95 chips.
2042 # ste: Sundance Technologies ST201 PCI fast ethernet controller, includes
2043 # the D-Link DFE-550TX.
2044 # stge: Support for gigabit ethernet adapters based on the Sundance/Tamarack
2045 # TC9021 family of controllers, including the Sundance ST2021/ST2023,
2046 # the Sundance/Tamarack TC9021, the D-Link DL-4000 and ASUS NX1101.
2047 # ti: Support for PCI gigabit ethernet NICs based on the Alteon Networks
2048 # Tigon 1 and Tigon 2 chipsets. This includes the Alteon AceNIC, the
2049 # 3Com 3c985, the Netgear GA620 and various others. Note that you will
2050 # probably want to bump up kern.ipc.nmbclusters a lot to use this driver.
2051 # tl: Support for the Texas Instruments TNETE100 series 'ThunderLAN'
2052 # cards and integrated ethernet controllers. This includes several
2053 # Compaq Netelligent 10/100 cards and the built-in ethernet controllers
2054 # in several Compaq Prosignia, Proliant and Deskpro systems. It also
2055 # supports several Olicom 10Mbps and 10/100 boards.
2056 # tx: SMC 9432 TX, BTX and FTX cards. (SMC EtherPower II series)
2057 # txp: Support for 3Com 3cR990 cards with the "Typhoon" chipset
2058 # vr: Support for various fast ethernet adapters based on the VIA
2059 # Technologies VT3043 `Rhine I' and VT86C100A `Rhine II' chips,
2060 # including the D-Link DFE520TX and D-Link DFE530TX (see 'rl' for
2061 # DFE530TX+), the Hawking Technologies PN102TX, and the AOpen/Acer ALN-320.
2062 # vte: DM&P Vortex86 RDC R6040 Fast Ethernet
2063 # vx: 3Com 3C590 and 3C595
2064 # wb: Support for fast ethernet adapters based on the Winbond W89C840F chip.
2065 # Note: this is not the same as the Winbond W89C940F, which is a
2067 # wi: Lucent WaveLAN/IEEE 802.11 PCMCIA adapters. Note: this supports both
2068 # the PCMCIA and ISA cards: the ISA card is really a PCMCIA to ISA
2069 # bridge with a PCMCIA adapter plugged into it.
2070 # xe: Xircom/Intel EtherExpress Pro100/16 PC Card ethernet controller,
2071 # Accton Fast EtherCard-16, Compaq Netelligent 10/100 PC Card,
2072 # Toshiba 10/100 Ethernet PC Card, Xircom 16-bit Ethernet + Modem 56
2073 # xl: Support for the 3Com 3c900, 3c905, 3c905B and 3c905C (Fast)
2074 # Etherlink XL cards and integrated controllers. This includes the
2075 # integrated 3c905B-TX chips in certain Dell Optiplex and Dell
2076 # Precision desktop machines and the integrated 3c905-TX chips
2077 # in Dell Latitude laptop docking stations.
2078 # Also supported: 3Com 3c980(C)-TX, 3Com 3cSOHO100-TX, 3Com 3c450-TX
2080 # Order for ISA devices is important here
2084 hint.cm.0.port="0x2e0"
2086 hint.cm.0.maddr="0xdc000"
2091 hint.fe.0.port="0x300"
2094 hint.sn.0.port="0x300"
2100 # PCI Ethernet NICs that use the common MII bus controller code.
2101 device ae # Attansic/Atheros L2 FastEthernet
2102 device age # Attansic/Atheros L1 Gigabit Ethernet
2103 device alc # Atheros AR8131/AR8132 Ethernet
2104 device ale # Atheros AR8121/AR8113/AR8114 Ethernet
2105 device bce # Broadcom BCM5706/BCM5708 Gigabit Ethernet
2106 device bfe # Broadcom BCM440x 10/100 Ethernet
2107 device bge # Broadcom BCM570xx Gigabit Ethernet
2108 device cas # Sun Cassini/Cassini+ and NS DP83065 Saturn
2109 device dc # DEC/Intel 21143 and various workalikes
2110 device et # Agere ET1310 10/100/Gigabit Ethernet
2111 device fxp # Intel EtherExpress PRO/100B (82557, 82558)
2112 hint.fxp.0.prefer_iomap="0"
2113 device gem # Apple GMAC/Sun ERI/Sun GEM
2114 device hme # Sun HME (Happy Meal Ethernet)
2115 device jme # JMicron JMC250 Gigabit/JMC260 Fast Ethernet
2116 device lge # Level 1 LXT1001 gigabit Ethernet
2117 device mlx5 # Shared code module between IB and Ethernet
2118 device mlx5en # Mellanox ConnectX-4 and ConnectX-4 LX
2119 device msk # Marvell/SysKonnect Yukon II Gigabit Ethernet
2120 device my # Myson Fast Ethernet (MTD80X, MTD89X)
2121 device nge # NatSemi DP83820 gigabit Ethernet
2122 device re # RealTek 8139C+/8169/8169S/8110S
2123 device rl # RealTek 8129/8139
2124 device pcn # AMD Am79C97x PCI 10/100 NICs
2125 device sf # Adaptec AIC-6915 (``Starfire'')
2126 device sge # Silicon Integrated Systems SiS190/191
2127 device sis # Silicon Integrated Systems SiS 900/SiS 7016
2128 device sk # SysKonnect SK-984x & SK-982x gigabit Ethernet
2129 device ste # Sundance ST201 (D-Link DFE-550TX)
2130 device stge # Sundance/Tamarack TC9021 gigabit Ethernet
2131 device tl # Texas Instruments ThunderLAN
2132 device tx # SMC EtherPower II (83c170 ``EPIC'')
2133 device vr # VIA Rhine, Rhine II
2134 device vte # DM&P Vortex86 RDC R6040 Fast Ethernet
2135 device wb # Winbond W89C840F
2136 device xl # 3Com 3c90x (``Boomerang'', ``Cyclone'')
2138 # PCI Ethernet NICs.
2139 device cxgb # Chelsio T3 10 Gigabit Ethernet
2140 device cxgb_t3fw # Chelsio T3 10 Gigabit Ethernet firmware
2141 device cxgbe # Chelsio T4-T6 1/10/25/40/100 Gigabit Ethernet
2142 device cxgbev # Chelsio T4-T6 Virtual Functions
2143 device de # DEC/Intel DC21x4x (``Tulip'')
2144 device em # Intel Pro/1000 Gigabit Ethernet
2145 device ixgb # Intel Pro/10Gbe PCI-X Ethernet
2146 device ix # Intel Pro/10Gbe PCIE Ethernet
2147 device ixv # Intel Pro/10Gbe PCIE Ethernet VF
2148 device le # AMD Am7900 LANCE and Am79C9xx PCnet
2149 device mxge # Myricom Myri-10G 10GbE NIC
2150 device nxge # Neterion Xframe 10GbE Server/Storage Adapter
2151 device oce # Emulex 10 GbE (OneConnect Ethernet)
2152 device ti # Alteon Networks Tigon I/II gigabit Ethernet
2153 device txp # 3Com 3cR990 (``Typhoon'')
2154 device vx # 3Com 3c590, 3c595 (``Vortex'')
2155 device vxge # Exar/Neterion XFrame 3100 10GbE
2163 # PCI IEEE 802.11 Wireless NICs
2164 device ath # Atheros pci/cardbus NIC's
2165 device ath_hal # pci/cardbus chip support
2166 #device ath_ar5210 # AR5210 chips
2167 #device ath_ar5211 # AR5211 chips
2168 #device ath_ar5212 # AR5212 chips
2175 #device ath_ar5416 # AR5416 chips
2176 options AH_SUPPORT_AR5416 # enable AR5416 tx/rx descriptors
2177 # All of the AR5212 parts have a problem when paired with the AR71xx
2178 # CPUS. These parts have a bug that triggers a fatal bus error on the AR71xx
2179 # only. Details of the exact nature of the bug are sketchy, but some can be
2180 # found at https://forum.openwrt.org/viewtopic.php?pid=70060 on pages 4, 5 and
2181 # 6. This option enables this workaround. There is a performance penalty
2182 # for this work around, but without it things don't work at all. The DMA
2183 # from the card usually bursts 128 bytes, but on the affected CPUs, only
2185 options AH_RXCFG_SDMAMW_4BYTES
2186 #device ath_ar9160 # AR9160 chips
2187 #device ath_ar9280 # AR9280 chips
2188 #device ath_ar9285 # AR9285 chips
2189 device ath_rate_sample # SampleRate tx rate control for ath
2190 device bwi # Broadcom BCM430* BCM431*
2191 device bwn # Broadcom BCM43xx
2192 device malo # Marvell Libertas wireless NICs.
2193 device mwl # Marvell 88W8363 802.11n wireless NICs.
2195 device ral # Ralink Technology RT2500 wireless NICs.
2196 device rtwn # Realtek wireless NICs
2199 # Use sf_buf(9) interface for jumbo buffers on ti(4) controllers.
2200 #options TI_SF_BUF_JUMBO
2201 # Turn on the header splitting option for the ti(4) driver firmware. This
2202 # only works for Tigon II chips, and has no effect for Tigon I chips.
2203 # This option requires the TI_SF_BUF_JUMBO option above.
2204 #options TI_JUMBO_HDRSPLIT
2206 # These two options allow manipulating the mbuf cluster size and mbuf size,
2207 # respectively. Be very careful with NIC driver modules when changing
2208 # these from their default values, because that can potentially cause a
2209 # mismatch between the mbuf size assumed by the kernel and the mbuf size
2210 # assumed by a module. The only driver that currently has the ability to
2211 # detect a mismatch is ti(4).
2212 options MCLSHIFT=12 # mbuf cluster shift in bits, 12 == 4KB
2213 options MSIZE=512 # mbuf size in bytes
2218 # sound: The generic sound driver.
2224 # snd_*: Device-specific drivers.
2226 # The flags of the device tell the device a bit more info about the
2227 # device that normally is obtained through the PnP interface.
2228 # bit 2..0 secondary DMA channel;
2229 # bit 4 set if the board uses two dma channels;
2230 # bit 15..8 board type, overrides autodetection; leave it
2231 # zero if don't know what to put in (and you don't,
2232 # since this is unsupported at the moment...).
2234 # snd_ad1816: Analog Devices AD1816 ISA PnP/non-PnP.
2235 # snd_als4000: Avance Logic ALS4000 PCI.
2236 # snd_atiixp: ATI IXP 200/300/400 PCI.
2237 # snd_audiocs: Crystal Semiconductor CS4231 SBus/EBus. Only
2239 # snd_cmi: CMedia CMI8338/CMI8738 PCI.
2240 # snd_cs4281: Crystal Semiconductor CS4281 PCI.
2241 # snd_csa: Crystal Semiconductor CS461x/428x PCI. (except
2243 # snd_ds1: Yamaha DS-1 PCI.
2244 # snd_emu10k1: Creative EMU10K1 PCI and EMU10K2 (Audigy) PCI.
2245 # snd_emu10kx: Creative SoundBlaster Live! and Audigy
2246 # snd_envy24: VIA Envy24 and compatible, needs snd_spicds.
2247 # snd_envy24ht: VIA Envy24HT and compatible, needs snd_spicds.
2248 # snd_es137x: Ensoniq AudioPCI ES137x PCI.
2249 # snd_ess: Ensoniq ESS ISA PnP/non-PnP, to be used in
2250 # conjunction with snd_sbc.
2251 # snd_fm801: Forte Media FM801 PCI.
2252 # snd_gusc: Gravis UltraSound ISA PnP/non-PnP.
2253 # snd_hda: Intel High Definition Audio (Controller) and
2255 # snd_hdspe: RME HDSPe AIO and RayDAT.
2256 # snd_ich: Intel ICH AC'97 and some more audio controllers
2257 # embedded in a chipset, for example nVidia
2258 # nForce controllers.
2259 # snd_maestro: ESS Technology Maestro-1/2x PCI.
2260 # snd_maestro3: ESS Technology Maestro-3/Allegro PCI.
2261 # snd_mss: Microsoft Sound System ISA PnP/non-PnP.
2262 # snd_neomagic: Neomagic 256 AV/ZX PCI.
2263 # snd_sb16: Creative SoundBlaster16, to be used in
2264 # conjunction with snd_sbc.
2265 # snd_sb8: Creative SoundBlaster (pre-16), to be used in
2266 # conjunction with snd_sbc.
2267 # snd_sbc: Creative SoundBlaster ISA PnP/non-PnP.
2268 # Supports ESS and Avance ISA chips as well.
2269 # snd_solo: ESS Solo-1x PCI.
2270 # snd_spicds: SPI codec driver, needed by Envy24/Envy24HT drivers.
2271 # snd_t4dwave: Trident 4DWave DX/NX PCI, Sis 7018 PCI and Acer Labs
2273 # snd_uaudio: USB audio.
2274 # snd_via8233: VIA VT8233x PCI.
2275 # snd_via82c686: VIA VT82C686A PCI.
2276 # snd_vibes: S3 Sonicvibes PCI.
2309 device snd_via82c686
2312 # For non-PnP sound cards:
2316 hint.pcm.0.flags="0x0"
2318 hint.sbc.0.port="0x220"
2321 hint.sbc.0.flags="0x15"
2322 hint.gusc.0.at="isa"
2323 hint.gusc.0.port="0x220"
2326 hint.gusc.0.flags="0x13"
2329 # Following options are intended for debugging/testing purposes:
2331 # SND_DEBUG Enable extra debugging code that includes
2332 # sanity checking and possible increase of
2335 # SND_DIAGNOSTIC Similar in a spirit of INVARIANTS/DIAGNOSTIC,
2336 # zero tolerance against inconsistencies.
2338 # SND_FEEDER_MULTIFORMAT By default, only 16/32 bit feeders are compiled
2339 # in. This options enable most feeder converters
2340 # except for 8bit. WARNING: May bloat the kernel.
2342 # SND_FEEDER_FULL_MULTIFORMAT Ditto, but includes 8bit feeders as well.
2344 # SND_FEEDER_RATE_HP (feeder_rate) High precision 64bit arithmetic
2345 # as much as possible (the default trying to
2346 # avoid it). Possible slowdown.
2348 # SND_PCM_64 (Only applicable for i386/32bit arch)
2349 # Process 32bit samples through 64bit
2350 # integer/arithmetic. Slight increase of dynamic
2351 # range at a cost of possible slowdown.
2353 # SND_OLDSTEREO Only 2 channels are allowed, effectively
2354 # disabling multichannel processing.
2357 options SND_DIAGNOSTIC
2358 options SND_FEEDER_MULTIFORMAT
2359 options SND_FEEDER_FULL_MULTIFORMAT
2360 options SND_FEEDER_RATE_HP
2362 options SND_OLDSTEREO
2365 # Miscellaneous hardware:
2367 # bktr: Brooktree bt848/848a/849a/878/879 video capture and TV Tuner board
2368 # joy: joystick (including IO DATA PCJOY PC Card joystick)
2369 # cmx: OmniKey CardMan 4040 pccard smartcard reader
2371 device joy # PnP aware, hints for non-PnP only
2373 hint.joy.0.port="0x201"
2377 # The 'bktr' device is a PCI video capture device using the Brooktree
2378 # bt848/bt848a/bt849a/bt878/bt879 chipset. When used with a TV Tuner it forms a
2379 # TV card, e.g. Miro PC/TV, Hauppauge WinCast/TV WinTV, VideoLogic Captivator,
2380 # Intel Smart Video III, AverMedia, IMS Turbo, FlyVideo.
2382 # options OVERRIDE_CARD=xxx
2383 # options OVERRIDE_TUNER=xxx
2384 # options OVERRIDE_MSP=1
2385 # options OVERRIDE_DBX=1
2386 # These options can be used to override the auto detection
2387 # The current values for xxx are found in src/sys/dev/bktr/bktr_card.h
2388 # Using sysctl(8) run-time overrides on a per-card basis can be made
2390 # options BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_PAL
2392 # options BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_NTSC
2393 # Specifies the default video capture mode.
2394 # This is required for Dual Crystal (28&35MHz) boards where PAL is used
2395 # to prevent hangs during initialization, e.g. VideoLogic Captivator PCI.
2397 # options BKTR_USE_PLL
2398 # This is required for PAL or SECAM boards with a 28MHz crystal and no 35MHz
2399 # crystal, e.g. some new Bt878 cards.
2401 # options BKTR_GPIO_ACCESS
2402 # This enables IOCTLs which give user level access to the GPIO port.
2404 # options BKTR_NO_MSP_RESET
2405 # Prevents the MSP34xx reset. Good if you initialize the MSP in another OS first
2407 # options BKTR_430_FX_MODE
2408 # Switch Bt878/879 cards into Intel 430FX chipset compatibility mode.
2410 # options BKTR_SIS_VIA_MODE
2411 # Switch Bt878/879 cards into SIS/VIA chipset compatibility mode which is
2412 # needed for some old SiS and VIA chipset motherboards.
2413 # This also allows Bt878/879 chips to work on old OPTi (<1997) chipset
2414 # motherboards and motherboards with bad or incomplete PCI 2.1 support.
2415 # As a rough guess, old = before 1998
2417 # options BKTR_NEW_MSP34XX_DRIVER
2418 # Use new, more complete initialization scheme for the msp34* soundchip.
2419 # Should fix stereo autodetection if the old driver does only output
2423 # options BKTR_USE_FREEBSD_SMBUS
2424 # Compile with FreeBSD SMBus implementation
2426 # Brooktree driver has been ported to the new I2C framework. Thus,
2427 # you'll need to have the following 3 lines in the kernel config.
2432 # The iic and smb devices are only needed if you want to control other
2433 # I2C slaves connected to the external connector of some cards.
2438 # PC Card/PCMCIA and Cardbus
2440 # cbb: pci/cardbus bridge implementing YENTA interface
2441 # pccard: pccard slots
2442 # cardbus: cardbus slots
2451 # mmcsd MMC/SD memory card
2452 # sdhci Generic PCI SD Host Controller
2461 # System Management Bus support is provided by the 'smbus' device.
2462 # Access to the SMBus device is via the 'smb' device (/dev/smb*),
2463 # which is a child of the 'smbus' device.
2465 # Supported devices:
2466 # smb standard I/O through /dev/smb*
2468 # Supported SMB interfaces:
2469 # iicsmb I2C to SMB bridge with any iicbus interface
2470 # bktr brooktree848 I2C hardware interface
2471 # intpm Intel PIIX4 (82371AB, 82443MX) Power Management Unit
2472 # alpm Acer Aladdin-IV/V/Pro2 Power Management Unit
2473 # ichsmb Intel ICH SMBus controller chips (82801AA, 82801AB, 82801BA)
2474 # viapm VIA VT82C586B/596B/686A and VT8233 Power Management Unit
2475 # amdpm AMD 756 Power Management Unit
2476 # amdsmb AMD 8111 SMBus 2.0 Controller
2477 # nfpm NVIDIA nForce Power Management Unit
2478 # nfsmb NVIDIA nForce2/3/4 MCP SMBus 2.0 Controller
2479 # ismt Intel SMBus 2.0 controller chips (on Atom S1200, C2000)
2481 device smbus # Bus support, required for smb below.
2495 # SMBus peripheral devices
2497 # jedec_ts Temperature Sensor compliant with JEDEC Standard 21-C
2503 # Philips i2c bus support is provided by the `iicbus' device.
2505 # Supported devices:
2506 # ic i2c network interface
2507 # iic i2c standard io
2508 # iicsmb i2c to smb bridge. Allow i2c i/o with smb commands.
2509 # iicoc simple polling driver for OpenCores I2C controller
2511 # Supported interfaces:
2512 # bktr brooktree848 I2C software interface
2515 # iicbb generic I2C bit-banging code (needed by lpbb, bktr)
2517 device iicbus # Bus support, required for ic/iic/iicsmb below.
2522 device iicsmb # smb over i2c bridge
2523 device iicoc # OpenCores I2C controller support
2525 # I2C peripheral devices
2527 device ds1307 # Dallas DS1307 RTC and compatible
2528 device ds13rtc # All Dallas/Maxim ds13xx chips
2529 device ds1672 # Dallas DS1672 RTC
2530 device ds3231 # Dallas DS3231 RTC + temperature
2531 device icee # AT24Cxxx and compatible EEPROMs
2532 device lm75 # LM75 compatible temperature sensor
2533 device nxprtc # NXP RTCs: PCA/PFC212x PCA/PCF85xx
2534 device s35390a # Seiko Instruments S-35390A RTC
2538 # Parallel port bus support is provided by the `ppbus' device.
2539 # Multiple devices may be attached to the parallel port, devices
2540 # are automatically probed and attached when found.
2542 # Supported devices:
2543 # vpo Iomega Zip Drive
2544 # Requires SCSI disk support ('scbus' and 'da'), best
2545 # performance is achieved with ports in EPP 1.9 mode.
2546 # lpt Parallel Printer
2547 # plip Parallel network interface
2548 # ppi General-purpose I/O ("Geek Port") + IEEE1284 I/O
2549 # pps Pulse per second Timing Interface
2550 # lpbb Philips official parallel port I2C bit-banging interface
2551 # pcfclock Parallel port clock driver.
2553 # Supported interfaces:
2554 # ppc ISA-bus parallel port interfaces.
2557 options PPC_PROBE_CHIPSET # Enable chipset specific detection
2558 # (see flags in ppc(4))
2559 options DEBUG_1284 # IEEE1284 signaling protocol debug
2560 options PERIPH_1284 # Makes your computer act as an IEEE1284
2561 # compliant peripheral
2562 options DONTPROBE_1284 # Avoid boot detection of PnP parallel devices
2563 options VP0_DEBUG # ZIP/ZIP+ debug
2564 options LPT_DEBUG # Printer driver debug
2565 options PPC_DEBUG # Parallel chipset level debug
2566 options PLIP_DEBUG # Parallel network IP interface debug
2567 options PCFCLOCK_VERBOSE # Verbose pcfclock driver
2568 options PCFCLOCK_MAX_RETRIES=5 # Maximum read tries (default 10)
2583 # Etherswitch framework and drivers
2585 # etherswitch The etherswitch(4) framework
2586 # miiproxy Proxy device for miibus(4) functionality
2588 # Switch hardware support:
2589 # arswitch Atheros switches
2590 # ip17x IC+ 17x family switches
2591 # rtl8366r Realtek RTL8366 switches
2592 # ukswitch Multi-PHY switches
2601 # Kernel BOOTP support
2603 options BOOTP # Use BOOTP to obtain IP address/hostname
2604 # Requires NFSCL and NFS_ROOT
2605 options BOOTP_NFSROOT # NFS mount root filesystem using BOOTP info
2606 options BOOTP_NFSV3 # Use NFS v3 to NFS mount root
2607 options BOOTP_COMPAT # Workaround for broken bootp daemons.
2608 options BOOTP_WIRED_TO=fxp0 # Use interface fxp0 for BOOTP
2609 options BOOTP_BLOCKSIZE=8192 # Override NFS block size
2612 # Enable software watchdog routines, even if hardware watchdog is present.
2613 # By default, software watchdog timer is enabled only if no hardware watchdog
2619 # Add the software deadlock resolver thread.
2624 # Disable swapping of stack pages. This option removes all
2625 # code which actually performs swapping, so it's not possible to turn
2626 # it back on at run-time.
2628 # This is sometimes usable for systems which don't have any swap space
2629 # (see also sysctl "vm.disable_swapspace_pageouts")
2631 #options NO_SWAPPING
2633 # Set the number of sf_bufs to allocate. sf_bufs are virtual buffers
2634 # for sendfile(2) that are used to map file VM pages, and normally
2635 # default to a quantity that is roughly 16*MAXUSERS+512. You would
2636 # typically want about 4 of these for each simultaneous file send.
2638 options NSFBUFS=1024
2641 # Enable extra debugging code for locks. This stores the filename and
2642 # line of whatever acquired the lock in the lock itself, and changes a
2643 # number of function calls to pass around the relevant data. This is
2644 # not at all useful unless you are debugging lock code. Note that
2645 # modules should be recompiled as this option modifies KBI.
2650 #####################################################################
2662 # General USB code (mandatory for USB)
2665 # USB Double Bulk Pipe devices
2669 # USB temperature meter
2673 # Human Interface Device (anything with buttons and dials)
2679 # USB mass storage driver (Requires scbus and da)
2681 # USB mass storage driver for device-side mode
2683 # USB support for Belkin F5U109 and Magic Control Technology serial adapters
2692 # eGalax USB touch screen
2694 # Diamond Rio 500 MP3 player
2697 # USB serial support
2699 # USB support for 3G modem cards by Option, Novatel, Huawei and Sierra
2701 # USB support for Technologies ARK3116 based serial adapters
2703 # USB support for Belkin F5U103 and compatible serial adapters
2705 # USB support for serial adapters based on the FT8U100AX and FT8U232AM
2707 # USB support for some Windows CE based serial communication.
2709 # USB support for Prolific PL-2303 serial adapters
2711 # USB support for Silicon Laboratories CP2101/CP2102 based USB serial adapters
2713 # USB Visor and Palm devices
2715 # USB serial support for DDI pocket's PHS
2718 # USB ethernet support
2720 # ADMtek USB ethernet. Supports the LinkSys USB100TX,
2721 # the Billionton USB100, the Melco LU-ATX, the D-Link DSB-650TX
2722 # and the SMC 2202USB. Also works with the ADMtek AN986 Pegasus
2726 # ASIX Electronics AX88172 USB 2.0 ethernet driver. Used in the
2727 # LinkSys USB200M and various other adapters.
2729 # ASIX Electronics AX88178A/AX88179 USB 2.0/3.0 gigabit ethernet driver.
2733 # Devices which communicate using Ethernet over USB, particularly
2734 # Communication Device Class (CDC) Ethernet specification. Supports
2735 # Sharp Zaurus PDAs, some DOCSIS cable modems and so on.
2738 # CATC USB-EL1201A USB ethernet. Supports the CATC Netmate
2739 # and Netmate II, and the Belkin F5U111.
2742 # Kawasaki LSI ethernet. Supports the LinkSys USB10T,
2743 # Entrega USB-NET-E45, Peracom Ethernet Adapter, the
2744 # 3Com 3c19250, the ADS Technologies USB-10BT, the ATen UC10T,
2745 # the Netgear EA101, the D-Link DSB-650, the SMC 2102USB
2746 # and 2104USB, and the Corega USB-T.
2749 # RealTek RTL8150 USB to fast ethernet. Supports the Melco LUA-KTX
2750 # and the GREEN HOUSE GH-USB100B.
2753 # Davicom DM9601E USB to fast ethernet. Supports the Corega FEther USB-TXC.
2756 # RealTek RTL8152/RTL8153 USB Ethernet driver
2759 # Moschip MCS7730/MCS7840 USB to fast ethernet. Supports the Sitecom LN030.
2762 # HSxPA devices from Option N.V
2765 # Realtek RTL8188SU/RTL8191SU/RTL8192SU wireless driver
2768 # Ralink Technology RT2501USB/RT2601USB wireless driver
2770 # Ralink Technology RT2700U/RT2800U/RT3000U wireless driver
2773 # Atheros AR5523 wireless driver
2776 # Conexant/Intersil PrismGT wireless driver
2779 # Ralink Technology RT2500USB wireless driver
2782 # RNDIS USB ethernet driver
2784 # Realtek RTL8187B/L wireless driver
2787 # ZyDas ZD1211/ZD1211B wireless driver
2790 # Sierra USB wireless driver
2794 # debugging options for the USB subsystem
2800 options UKBD_DFLT_KEYMAP # specify the built-in keymap
2801 makeoptions UKBD_DFLT_KEYMAP=jp
2803 # options for uplcom:
2804 options UPLCOM_INTR_INTERVAL=100 # interrupt pipe interval
2807 # options for uvscom:
2808 options UVSCOM_DEFAULT_OPKTSIZE=8 # default output packet size
2809 options UVSCOM_INTR_INTERVAL=100 # interrupt pipe interval
2812 #####################################################################
2815 device firewire # FireWire bus code
2816 device sbp # SCSI over Firewire (Requires scbus and da)
2817 device sbp_targ # SBP-2 Target mode (Requires scbus and targ)
2818 device fwe # Ethernet over FireWire (non-standard!)
2819 device fwip # IP over FireWire (RFC2734 and RFC3146)
2821 #####################################################################
2822 # dcons support (Dumb Console Device)
2824 device dcons # dumb console driver
2825 device dcons_crom # FireWire attachment
2826 options DCONS_BUF_SIZE=16384 # buffer size
2827 options DCONS_POLL_HZ=100 # polling rate
2828 options DCONS_FORCE_CONSOLE=0 # force to be the primary console
2829 options DCONS_FORCE_GDB=1 # force to be the gdb device
2831 #####################################################################
2834 # This is a port of the OpenBSD crypto framework. Include this when
2835 # configuring IPSEC and when you have a h/w crypto device to accelerate
2836 # user applications that link to OpenSSL.
2838 # Drivers are ports from OpenBSD with some simple enhancements that have
2839 # been fed back to OpenBSD.
2841 device crypto # core crypto support
2843 # Only install the cryptodev device if you are running tests, or know
2844 # specifically why you need it. In most cases, it is not needed and
2845 # will make things slower.
2846 device cryptodev # /dev/crypto for access to h/w
2848 device rndtest # FIPS 140-2 entropy tester
2850 device ccr # Chelsio T6
2852 device hifn # Hifn 7951, 7781, etc.
2853 options HIFN_DEBUG # enable debugging support: hw.hifn.debug
2854 options HIFN_RNDTEST # enable rndtest support
2856 device ubsec # Broadcom 5501, 5601, 58xx
2857 options UBSEC_DEBUG # enable debugging support: hw.ubsec.debug
2858 options UBSEC_RNDTEST # enable rndtest support
2860 #####################################################################
2864 # Embedded system options:
2866 # An embedded system might want to run something other than init.
2867 options INIT_PATH=/sbin/init:/rescue/init
2870 options BUS_DEBUG # enable newbus debugging
2871 options DEBUG_VFS_LOCKS # enable VFS lock debugging
2872 options SOCKBUF_DEBUG # enable sockbuf last record/mb tail checking
2873 options IFMEDIA_DEBUG # enable debugging in net/if_media.c
2878 # Make the SYSINIT process performed by mi_startup() verbose. This is very
2879 # useful when porting to a new architecture. If DDB is also enabled, this
2880 # will print function names instead of addresses.
2881 options VERBOSE_SYSINIT
2883 #####################################################################
2884 # SYSV IPC KERNEL PARAMETERS
2886 # Maximum number of System V semaphores that can be used on the system at
2890 # Total number of semaphores system wide
2893 # Total number of undo structures in system
2896 # Maximum number of System V semaphores that can be used by a single process
2900 # Maximum number of operations that can be outstanding on a single System V
2901 # semaphore at one time.
2904 # Maximum number of undo operations that can be outstanding on a single
2905 # System V semaphore at one time.
2908 # Maximum number of shared memory pages system wide.
2911 # Maximum size, in bytes, of a single System V shared memory region.
2912 options SHMMAX=(SHMMAXPGS*PAGE_SIZE+1)
2913 options SHMMAXPGS=1025
2915 # Minimum size, in bytes, of a single System V shared memory region.
2918 # Maximum number of shared memory regions that can be used on the system
2922 # Maximum number of System V shared memory regions that can be attached to
2923 # a single process at one time.
2926 # Set the amount of time (in seconds) the system will wait before
2927 # rebooting automatically when a kernel panic occurs. If set to (-1),
2928 # the system will wait indefinitely until a key is pressed on the
2930 options PANIC_REBOOT_WAIT_TIME=16
2932 # Attempt to bypass the buffer cache and put data directly into the
2933 # userland buffer for read operation when O_DIRECT flag is set on the
2934 # file. Both offset and length of the read operation must be
2935 # multiples of the physical media sector size.
2939 # Specify a lower limit for the number of swap I/O buffers. They are
2940 # (among other things) used when bypassing the buffer cache due to
2941 # DIRECTIO kernel option enabled and O_DIRECT flag set on file.
2943 options NSWBUF_MIN=120
2945 #####################################################################
2947 # More undocumented options for linting.
2948 # Note that documenting these is not considered an affront.
2950 options CAM_DEBUG_DELAY
2952 # VFS cluster debugging.
2953 options CLUSTERDEBUG
2957 # Kernel filelock debugging.
2960 # System V compatible message queues
2961 # Please note that the values provided here are used to test kernel
2962 # building. The defaults in the sources provide almost the same numbers.
2963 # MSGSSZ must be a power of 2 between 8 and 1024.
2964 options MSGMNB=2049 # Max number of chars in queue
2965 options MSGMNI=41 # Max number of message queue identifiers
2966 options MSGSEG=2049 # Max number of message segments
2967 options MSGSSZ=16 # Size of a message segment
2968 options MSGTQL=41 # Max number of messages in system
2970 options NBUF=512 # Number of buffer headers
2972 options SCSI_NCR_DEBUG
2973 options SCSI_NCR_MAX_SYNC=10000
2974 options SCSI_NCR_MAX_WIDE=1
2975 options SCSI_NCR_MYADDR=7
2977 options SC_DEBUG_LEVEL=5 # Syscons debug level
2978 options SC_RENDER_DEBUG # syscons rendering debugging
2980 options VFS_BIO_DEBUG # VFS buffer I/O debugging
2982 options KSTACK_MAX_PAGES=32 # Maximum pages to give the kernel stack
2983 options KSTACK_USAGE_PROF
2985 # Adaptec Array Controller driver options
2986 options AAC_DEBUG # Debugging levels:
2987 # 0 - quiet, only emit warnings
2988 # 1 - noisy, emit major function
2989 # points and things done
2990 # 2 - extremely noisy, emit trace
2991 # items in loops, etc.
2993 # Resource Accounting
2999 # Yet more undocumented options for linting.
3000 # BKTR_ALLOC_PAGES has no effect except to cause warnings, and
3001 # BROOKTREE_ALLOC_PAGES hasn't actually been superseded by it, since the
3002 # driver still mostly spells this option BROOKTREE_ALLOC_PAGES.
3003 ##options BKTR_ALLOC_PAGES=(217*4+1)
3004 options BROOKTREE_ALLOC_PAGES=(217*4+1)
3005 options MAXFILES=999
3007 # Random number generator
3008 # Only ONE of the below two may be used; they are mutually exclusive.
3009 # If neither is present, then the Fortuna algorithm is selected.
3010 #options RANDOM_YARROW # Yarrow CSPRNG (old default)
3011 #options RANDOM_LOADABLE # Allow the algorithm to be loaded as
3013 # Select this to allow high-rate but potentially expensive
3014 # harvesting of Slab-Allocator entropy. In very high-rate
3015 # situations the value of doing this is dubious at best.
3016 options RANDOM_ENABLE_UMA # slab allocator
3018 # Module to enable execution of application via emulators like QEMU
3019 options IMAGACT_BINMISC
3021 # zlib I/O stream support
3022 # This enables support for compressed core dumps.
3026 options BHND_LOGLEVEL # Logging threshold level
3029 device evdev # input event device support
3030 options EVDEV_SUPPORT # evdev support in legacy drivers
3031 options EVDEV_DEBUG # enable event debug msgs
3032 device uinput # install /dev/uinput cdev
3033 options UINPUT_DEBUG # enable uinput debug msgs
3035 # Encrypted kernel crash dumps.