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
149 # Compile-time defaults for dmesg boot tagging
151 # Default boot tag; may use 'kern.boot_tag' loader tunable to override. The
152 # current boot's tag is also exposed via the 'kern.boot_tag' sysctl.
153 options BOOT_TAG=\"---<<BOOT>>---\"
154 # Maximum boot tag size the kernel's static buffer should accomodate. Maximum
155 # size for both BOOT_TAG and the assocated tunable.
156 options BOOT_TAG_SZ=32
158 options GEOM_AES # Don't use, use GEOM_BDE (obsolete, gone in 12)
159 options GEOM_BDE # Disk encryption.
160 options GEOM_BSD # BSD disklabels (obsolete, gone in 12)
161 options GEOM_CACHE # Disk cache.
162 options GEOM_CONCAT # Disk concatenation.
163 options GEOM_ELI # Disk encryption.
164 options GEOM_FOX # Redundant path mitigation (obsolete, gone in 12)
165 options GEOM_GATE # Userland services.
166 options GEOM_JOURNAL # Journaling.
167 options GEOM_LABEL # Providers labelization.
168 options GEOM_LINUX_LVM # Linux LVM2 volumes
169 options GEOM_MAP # Map based partitioning
170 options GEOM_MBR # DOS/MBR partitioning (obsolete, gone in 12)
171 options GEOM_MIRROR # Disk mirroring.
172 options GEOM_MULTIPATH # Disk multipath
173 options GEOM_NOP # Test class.
174 options GEOM_PART_APM # Apple partitioning
175 options GEOM_PART_BSD # BSD disklabel
176 options GEOM_PART_BSD64 # BSD disklabel64
177 options GEOM_PART_EBR # Extended Boot Records
178 options GEOM_PART_EBR_COMPAT # Backward compatible partition names
179 options GEOM_PART_GPT # GPT partitioning
180 options GEOM_PART_LDM # Logical Disk Manager
181 options GEOM_PART_MBR # MBR partitioning
182 options GEOM_PART_PC98 # PC-9800 disk partitioning
183 options GEOM_PART_VTOC8 # SMI VTOC8 disk label
184 options GEOM_PC98 # NEC PC9800 partitioning
185 options GEOM_RAID # Soft RAID functionality.
186 options GEOM_RAID3 # RAID3 functionality.
187 options GEOM_SHSEC # Shared secret.
188 options GEOM_STRIPE # Disk striping.
189 options GEOM_SUNLABEL # Sun/Solaris partitioning (obsolete, gone in 12)
190 options GEOM_UZIP # Read-only compressed disks
191 options GEOM_VINUM # Vinum logical volume manager
192 options GEOM_VIRSTOR # Virtual storage.
193 options GEOM_VOL # Volume names from UFS superblock (obsolete, gone in 12)
194 options GEOM_ZERO # Performance testing helper.
197 # The root device and filesystem type can be compiled in;
198 # this provides a fallback option if the root device cannot
199 # be correctly guessed by the bootstrap code, or an override if
200 # the RB_DFLTROOT flag (-r) is specified when booting the kernel.
202 options ROOTDEVNAME=\"ufs:da0s2e\"
205 #####################################################################
208 # Specifying one of SCHED_4BSD or SCHED_ULE is mandatory. These options
209 # select which scheduler is compiled in.
211 # SCHED_4BSD is the historical, proven, BSD scheduler. It has a global run
212 # queue and no CPU affinity which makes it suboptimal for SMP. It has very
213 # good interactivity and priority selection.
215 # SCHED_ULE provides significant performance advantages over 4BSD on many
216 # workloads on SMP machines. It supports cpu-affinity, per-cpu runqueues
217 # and scheduler locks. It also has a stronger notion of interactivity
218 # which leads to better responsiveness even on uniprocessor machines. This
219 # is the default scheduler.
221 # SCHED_STATS is a debugging option which keeps some stats in the sysctl
222 # tree at 'kern.sched.stats' and is useful for debugging scheduling decisions.
228 #####################################################################
231 # SMP enables building of a Symmetric MultiProcessor Kernel.
234 options SMP # Symmetric MultiProcessor Kernel
236 # EARLY_AP_STARTUP releases the Application Processors earlier in the
237 # kernel startup process (before devices are probed) rather than at the
238 # end. This is a temporary option for use during the transition from
239 # late to early AP startup.
240 options EARLY_AP_STARTUP
242 # MAXCPU defines the maximum number of CPUs that can boot in the system.
243 # A default value should be already present, for every architecture.
246 # MAXMEMDOM defines the maximum number of memory domains that can boot in the
247 # system. A default value should already be defined by every architecture.
250 # VM_NUMA_ALLOC enables use of memory domain-aware allocation in the VM
252 options VM_NUMA_ALLOC
254 # DEVICE_NUMA enables reporting of domain affinity of I/O devices via
255 # bus_get_domain(), etc.
258 # ADAPTIVE_MUTEXES changes the behavior of blocking mutexes to spin
259 # if the thread that currently owns the mutex is executing on another
260 # CPU. This behavior is enabled by default, so this option can be used
262 options NO_ADAPTIVE_MUTEXES
264 # ADAPTIVE_RWLOCKS changes the behavior of reader/writer locks to spin
265 # if the thread that currently owns the rwlock is executing on another
266 # CPU. This behavior is enabled by default, so this option can be used
268 options NO_ADAPTIVE_RWLOCKS
270 # ADAPTIVE_SX changes the behavior of sx locks to spin if the thread that
271 # currently owns the sx lock is executing on another CPU.
272 # This behavior is enabled by default, so this option can be used to
274 options NO_ADAPTIVE_SX
276 # MUTEX_NOINLINE forces mutex operations to call functions to perform each
277 # operation rather than inlining the simple cases. This can be used to
278 # shrink the size of the kernel text segment. Note that this behavior is
279 # already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
280 # and WITNESS options.
281 options MUTEX_NOINLINE
283 # RWLOCK_NOINLINE forces rwlock operations to call functions to perform each
284 # operation rather than inlining the simple cases. This can be used to
285 # shrink the size of the kernel text segment. Note that this behavior is
286 # already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
287 # and WITNESS options.
288 options RWLOCK_NOINLINE
290 # SX_NOINLINE forces sx lock operations to call functions to perform each
291 # operation rather than inlining the simple cases. This can be used to
292 # shrink the size of the kernel text segment. Note that this behavior is
293 # already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
294 # and WITNESS options.
297 # SMP Debugging Options:
299 # CALLOUT_PROFILING enables rudimentary profiling of the callwheel data
300 # structure used as backend in callout(9).
301 # PREEMPTION allows the threads that are in the kernel to be preempted by
302 # higher priority [interrupt] threads. It helps with interactivity
303 # and allows interrupt threads to run sooner rather than waiting.
304 # WARNING! Only tested on amd64 and i386.
305 # FULL_PREEMPTION instructs the kernel to preempt non-realtime kernel
306 # threads. Its sole use is to expose race conditions and other
307 # bugs during development. Enabling this option will reduce
308 # performance and increase the frequency of kernel panics by
309 # design. If you aren't sure that you need it then you don't.
310 # Relies on the PREEMPTION option. DON'T TURN THIS ON.
311 # SLEEPQUEUE_PROFILING enables rudimentary profiling of the hash table
312 # used to hold active sleep queues as well as sleep wait message
314 # TURNSTILE_PROFILING enables rudimentary profiling of the hash table
315 # used to hold active lock queues.
316 # UMTX_PROFILING enables rudimentary profiling of the hash table used
317 # to hold active lock queues.
318 # WITNESS enables the witness code which detects deadlocks and cycles
319 # during locking operations.
320 # WITNESS_KDB causes the witness code to drop into the kernel debugger if
321 # a lock hierarchy violation occurs or if locks are held when going to
323 # WITNESS_SKIPSPIN disables the witness checks on spin mutexes.
325 options FULL_PREEMPTION
328 options WITNESS_SKIPSPIN
330 # LOCK_PROFILING - Profiling locks. See LOCK_PROFILING(9) for details.
331 options LOCK_PROFILING
332 # Set the number of buffers and the hash size. The hash size MUST be larger
333 # than the number of buffers. Hash size should be prime.
334 options MPROF_BUFFERS="1536"
335 options MPROF_HASH_SIZE="1543"
337 # Profiling for the callout(9) backend.
338 options CALLOUT_PROFILING
340 # Profiling for internal hash tables.
341 options SLEEPQUEUE_PROFILING
342 options TURNSTILE_PROFILING
343 options UMTX_PROFILING
346 #####################################################################
347 # COMPATIBILITY OPTIONS
350 # Implement system calls compatible with 4.3BSD and older versions of
351 # FreeBSD. You probably do NOT want to remove this as much current code
352 # still relies on the 4.3 emulation. Note that some architectures that
353 # are supported by FreeBSD do not include support for certain important
354 # aspects of this compatibility option, namely those related to the
355 # signal delivery mechanism.
362 # Note that as a general rule, COMPAT_FREEBSD<n> depends on
363 # COMPAT_FREEBSD<n+1>, COMPAT_FREEBSD<n+2>, etc.
365 # Enable FreeBSD4 compatibility syscalls
366 options COMPAT_FREEBSD4
368 # Enable FreeBSD5 compatibility syscalls
369 options COMPAT_FREEBSD5
371 # Enable FreeBSD6 compatibility syscalls
372 options COMPAT_FREEBSD6
374 # Enable FreeBSD7 compatibility syscalls
375 options COMPAT_FREEBSD7
377 # Enable FreeBSD9 compatibility syscalls
378 options COMPAT_FREEBSD9
380 # Enable FreeBSD10 compatibility syscalls
381 options COMPAT_FREEBSD10
383 # Enable Linux Kernel Programming Interface
384 options COMPAT_LINUXKPI
387 # These three options provide support for System V Interface
388 # Definition-style interprocess communication, in the form of shared
389 # memory, semaphores, and message queues, respectively.
396 #####################################################################
400 # Compile with kernel debugger related code.
405 # Print a stack trace of the current thread on the console for a panic.
410 # Don't enter the debugger for a panic. Intended for unattended operation
411 # where you may want to enter the debugger from the console, but still want
412 # the machine to recover from a panic.
414 options KDB_UNATTENDED
417 # Enable the ddb debugger backend.
422 # Print the numerical value of symbols in addition to the symbolic
428 # Enable the remote gdb debugger backend.
433 # SYSCTL_DEBUG enables a 'sysctl' debug tree that can be used to dump the
434 # contents of the registered sysctl nodes on the console. It is disabled by
435 # default because it generates excessively verbose console output that can
436 # interfere with serial console operation.
441 # Enable textdump by default, this disables kernel core dumps.
443 options TEXTDUMP_PREFERRED
446 # Enable extra debug messages while performing textdumps.
448 options TEXTDUMP_VERBOSE
451 # NO_SYSCTL_DESCR omits the sysctl node descriptions to save space in the
453 options NO_SYSCTL_DESCR
456 # MALLOC_DEBUG_MAXZONES enables multiple uma zones for malloc(9)
457 # allocations that are smaller than a page. The purpose is to isolate
458 # different malloc types into hash classes, so that any buffer
459 # overruns or use-after-free will usually only affect memory from
460 # malloc types in that hash class. This is purely a debugging tool;
461 # by varying the hash function and tracking which hash class was
462 # corrupted, the intersection of the hash classes from each instance
463 # will point to a single malloc type that is being misused. At this
464 # point inspection or memguard(9) can be used to catch the offending
467 options MALLOC_DEBUG_MAXZONES=8
470 # DEBUG_MEMGUARD builds and enables memguard(9), a replacement allocator
471 # for the kernel used to detect modify-after-free scenarios. See the
472 # memguard(9) man page for more information on usage.
474 options DEBUG_MEMGUARD
477 # DEBUG_REDZONE enables buffer underflows and buffer overflows detection for
480 options DEBUG_REDZONE
483 # EARLY_PRINTF enables support for calling a special printf (eprintf)
484 # very early in the kernel (before cn_init() has been called). This
485 # should only be used for debugging purposes early in boot. Normally,
486 # it is not defined. It is commented out here because this feature
487 # isn't generally available. And the required eputc() isn't defined.
489 #options EARLY_PRINTF
492 # KTRACE enables the system-call tracing facility ktrace(2). To be more
493 # SMP-friendly, KTRACE uses a worker thread to process most trace events
494 # asynchronously to the thread generating the event. This requires a
495 # pre-allocated store of objects representing trace events. The
496 # KTRACE_REQUEST_POOL option specifies the initial size of this store.
497 # The size of the pool can be adjusted both at boottime and runtime via
498 # the kern.ktrace_request_pool tunable and sysctl.
500 options KTRACE #kernel tracing
501 options KTRACE_REQUEST_POOL=101
504 # KTR is a kernel tracing facility imported from BSD/OS. It is
505 # enabled with the KTR option. KTR_ENTRIES defines the number of
506 # entries in the circular trace buffer; it may be an arbitrary number.
507 # KTR_BOOT_ENTRIES defines the number of entries during the early boot,
508 # before malloc(9) is functional.
509 # KTR_COMPILE defines the mask of events to compile into the kernel as
510 # defined by the KTR_* constants in <sys/ktr.h>. KTR_MASK defines the
511 # initial value of the ktr_mask variable which determines at runtime
512 # what events to trace. KTR_CPUMASK determines which CPU's log
513 # events, with bit X corresponding to CPU X. The layout of the string
514 # passed as KTR_CPUMASK must match a series of bitmasks each of them
515 # separated by the "," character (ie:
516 # KTR_CPUMASK=0xAF,0xFFFFFFFFFFFFFFFF). KTR_VERBOSE enables
517 # dumping of KTR events to the console by default. This functionality
518 # can be toggled via the debug.ktr_verbose sysctl and defaults to off
519 # if KTR_VERBOSE is not defined. See ktr(4) and ktrdump(8) for details.
522 options KTR_BOOT_ENTRIES=1024
523 options KTR_ENTRIES=(128*1024)
524 options KTR_COMPILE=(KTR_ALL)
525 options KTR_MASK=KTR_INTR
526 options KTR_CPUMASK=0x3
530 # ALQ(9) is a facility for the asynchronous queuing of records from the kernel
531 # to a vnode, and is employed by services such as ktr(4) to produce trace
532 # files based on a kernel event stream. Records are written asynchronously
533 # in a worker thread.
539 # The INVARIANTS option is used in a number of source files to enable
540 # extra sanity checking of internal structures. This support is not
541 # enabled by default because of the extra time it would take to check
542 # for these conditions, which can only occur as a result of
543 # programming errors.
548 # The INVARIANT_SUPPORT option makes us compile in support for
549 # verifying some of the internal structures. It is a prerequisite for
550 # 'INVARIANTS', as enabling 'INVARIANTS' will make these functions be
551 # called. The intent is that you can set 'INVARIANTS' for single
552 # source files (by changing the source file or specifying it on the
553 # command line) if you have 'INVARIANT_SUPPORT' enabled. Also, if you
554 # wish to build a kernel module with 'INVARIANTS', then adding
555 # 'INVARIANT_SUPPORT' to your kernel will provide all the necessary
556 # infrastructure without the added overhead.
558 options INVARIANT_SUPPORT
561 # The DIAGNOSTIC option is used to enable extra debugging information
562 # and invariants checking. The added checks are too expensive or noisy
563 # for an INVARIANTS kernel and thus are disabled by default. It is
564 # expected that a kernel configured with DIAGNOSTIC will also have the
565 # INVARIANTS option enabled.
570 # REGRESSION causes optional kernel interfaces necessary only for regression
571 # testing to be enabled. These interfaces may constitute security risks
572 # when enabled, as they permit processes to easily modify aspects of the
573 # run-time environment to reproduce unlikely or unusual (possibly normally
574 # impossible) scenarios.
579 # This option lets some drivers co-exist that can't co-exist in a running
580 # system. This is used to be able to compile all kernel code in one go for
581 # quality assurance purposes (like this file, which the option takes it name
584 options COMPILING_LINT
587 # STACK enables the stack(9) facility, allowing the capture of kernel stack
588 # for the purpose of procinfo(1), etc. stack(9) will also be compiled in
589 # automatically if DDB(4) is compiled into the kernel.
594 #####################################################################
595 # PERFORMANCE MONITORING OPTIONS
598 # The hwpmc driver that allows the use of in-CPU performance monitoring
599 # counters for performance monitoring. The base kernel needs to be configured
600 # with the 'options' line, while the hwpmc device can be either compiled
601 # in or loaded as a loadable kernel module.
603 # Additional configuration options may be required on specific architectures,
604 # please see hwpmc(4).
606 device hwpmc # Driver (also a loadable module)
608 options HWPMC_HOOKS # Other necessary kernel hooks
611 #####################################################################
617 options INET #Internet communications protocols
618 options INET6 #IPv6 communications protocols
620 options ROUTETABLES=2 # allocated fibs up to 65536. default is 1.
621 # but that would be a bad idea as they are large.
623 options TCP_OFFLOAD # TCP offload support.
625 # In order to enable IPSEC you MUST also add device crypto to
626 # your kernel configuration
627 options IPSEC #IP security (requires device crypto)
629 # Option IPSEC_SUPPORT does not enable IPsec, but makes it possible to
630 # load it as a kernel module. You still MUST add device crypto to your kernel
632 options IPSEC_SUPPORT
633 #options IPSEC_DEBUG #debug for IP security
637 # NETSMB enables support for SMB protocol, it requires LIBMCHAIN and LIBICONV
639 options NETSMB #SMB/CIFS requester
641 # mchain library. It can be either loaded as KLD or compiled into kernel
644 # libalias library, performing NAT
651 # SCTP is a NEW transport protocol defined by
652 # RFC2960 updated by RFC3309 and RFC3758.. and
653 # soon to have a new base RFC and many many more
654 # extensions. This release supports all the extensions
655 # including many drafts (most about to become RFC's).
656 # It is the reference implementation of SCTP
657 # and is quite well tested.
659 # Note YOU MUST have both INET and INET6 defined.
660 # You don't have to enable V6, but SCTP is
661 # dual stacked and so far we have not torn apart
662 # the V6 and V4.. since an association can span
663 # both a V6 and V4 address at the SAME time :-)
666 # There are bunches of options:
667 # this one turns on all sorts of
668 # nastily printing that you can
669 # do. It's all controlled by a
670 # bit mask (settable by socket opt and
671 # by sysctl). Including will not cause
672 # logging until you set the bits.. but it
673 # can be quite verbose.. so without this
674 # option we don't do any of the tests for
675 # bits and prints.. which makes the code run
676 # faster.. if you are not debugging don't use.
679 # All that options after that turn on specific types of
680 # logging. You can monitor CWND growth, flight size
681 # and all sorts of things. Go look at the code and
682 # see. I have used this to produce interesting
683 # charts and graphs as well :->
685 # I have not yet committed the tools to get and print
686 # the logs, I will do that eventually .. before then
687 # if you want them send me an email rrs@freebsd.org
688 # You basically must have ktr(4) enabled for these
689 # and you then set the sysctl to turn on/off various
690 # logging bits. Use ktrdump(8) to pull the log and run
691 # it through a display program.. and graphs and other
694 options SCTP_LOCK_LOGGING
695 options SCTP_MBUF_LOGGING
696 options SCTP_MBCNT_LOGGING
697 options SCTP_PACKET_LOGGING
698 options SCTP_LTRACE_CHUNKS
699 options SCTP_LTRACE_ERRORS
702 # altq(9). Enable the base part of the hooks with the ALTQ option.
703 # Individual disciplines must be built into the base system and can not be
704 # loaded as modules at this point. ALTQ requires a stable TSC so if yours is
705 # broken or changes with CPU throttling then you must also have the ALTQ_NOPCC
708 options ALTQ_CBQ # Class Based Queueing
709 options ALTQ_RED # Random Early Detection
710 options ALTQ_RIO # RED In/Out
711 options ALTQ_CODEL # CoDel Active Queueing
712 options ALTQ_HFSC # Hierarchical Packet Scheduler
713 options ALTQ_FAIRQ # Fair Packet Scheduler
714 options ALTQ_CDNR # Traffic conditioner
715 options ALTQ_PRIQ # Priority Queueing
716 options ALTQ_NOPCC # Required if the TSC is unusable
719 # netgraph(4). Enable the base netgraph code with the NETGRAPH option.
720 # Individual node types can be enabled with the corresponding option
721 # listed below; however, this is not strictly necessary as netgraph
722 # will automatically load the corresponding KLD module if the node type
723 # is not already compiled into the kernel. Each type below has a
724 # corresponding man page, e.g., ng_async(8).
725 options NETGRAPH # netgraph(4) system
726 options NETGRAPH_DEBUG # enable extra debugging, this
727 # affects netgraph(4) and nodes
729 options NETGRAPH_ASYNC
730 options NETGRAPH_ATMLLC
731 options NETGRAPH_ATM_ATMPIF
732 options NETGRAPH_BLUETOOTH # ng_bluetooth(4)
733 options NETGRAPH_BLUETOOTH_BT3C # ng_bt3c(4)
734 options NETGRAPH_BLUETOOTH_HCI # ng_hci(4)
735 options NETGRAPH_BLUETOOTH_L2CAP # ng_l2cap(4)
736 options NETGRAPH_BLUETOOTH_SOCKET # ng_btsocket(4)
737 options NETGRAPH_BLUETOOTH_UBT # ng_ubt(4)
738 options NETGRAPH_BLUETOOTH_UBTBCMFW # ubtbcmfw(4)
740 options NETGRAPH_BRIDGE
742 options NETGRAPH_CISCO
743 options NETGRAPH_DEFLATE
744 options NETGRAPH_DEVICE
745 options NETGRAPH_ECHO
746 options NETGRAPH_EIFACE
747 options NETGRAPH_ETHER
748 options NETGRAPH_FRAME_RELAY
750 options NETGRAPH_GIF_DEMUX
751 options NETGRAPH_HOLE
752 options NETGRAPH_IFACE
753 options NETGRAPH_IP_INPUT
754 options NETGRAPH_IPFW
755 options NETGRAPH_KSOCKET
756 options NETGRAPH_L2TP
758 options NETGRAPH_MPPC_COMPRESSION
759 options NETGRAPH_MPPC_ENCRYPTION
760 options NETGRAPH_NETFLOW
762 options NETGRAPH_ONE2MANY
763 options NETGRAPH_PATCH
764 options NETGRAPH_PIPE
766 options NETGRAPH_PPPOE
767 options NETGRAPH_PPTPGRE
768 options NETGRAPH_PRED1
769 options NETGRAPH_RFC1490
770 options NETGRAPH_SOCKET
771 options NETGRAPH_SPLIT
772 options NETGRAPH_SPPP
774 options NETGRAPH_TCPMSS
778 options NETGRAPH_VLAN
780 # NgATM - Netgraph ATM
782 options NGATM_ATMBASE
788 device mn # Munich32x/Falc54 Nx64kbit/sec cards.
790 # Network stack virtualization.
792 #options VNET_DEBUG # debug for VIMAGE
795 # Network interfaces:
796 # The `loop' device is MANDATORY when networking is enabled.
799 # The `ether' device provides generic code to handle
800 # Ethernets; it is MANDATORY when an Ethernet device driver is
801 # configured or token-ring is enabled.
804 # The `vlan' device implements the VLAN tagging of Ethernet frames
805 # according to IEEE 802.1Q.
808 # The `vxlan' device implements the VXLAN encapsulation of Ethernet
809 # frames in UDP packets according to RFC7348.
812 # The `wlan' device provides generic code to support 802.11
813 # drivers, including host AP mode; it is MANDATORY for the wi,
814 # and ath drivers and will eventually be required by all 802.11 drivers.
816 options IEEE80211_DEBUG #enable debugging msgs
817 options IEEE80211_AMPDU_AGE #age frames in AMPDU reorder q's
818 options IEEE80211_SUPPORT_MESH #enable 802.11s D3.0 support
819 options IEEE80211_SUPPORT_TDMA #enable TDMA support
821 # The `wlan_wep', `wlan_tkip', and `wlan_ccmp' devices provide
822 # support for WEP, TKIP, and AES-CCMP crypto protocols optionally
823 # used with 802.11 devices that depend on the `wlan' module.
828 # The `wlan_xauth' device provides support for external (i.e. user-mode)
829 # authenticators for use with 802.11 drivers that use the `wlan'
830 # module and support 802.1x and/or WPA security protocols.
833 # The `wlan_acl' device provides a MAC-based access control mechanism
834 # for use with 802.11 drivers operating in ap mode and using the
836 # The 'wlan_amrr' device provides AMRR transmit rate control algorithm
843 # The `fddi' device provides generic code to support FDDI.
846 # The `arcnet' device provides generic code to support Arcnet.
849 # The `sppp' device serves a similar role for certain types
850 # of synchronous PPP links (like `cx', `ar').
853 # The `bpf' device enables the Berkeley Packet Filter. Be
854 # aware of the legal and administrative consequences of enabling this
855 # option. DHCP requires bpf.
858 # The `netmap' device implements memory-mapped access to network
859 # devices from userspace, enabling wire-speed packet capture and
860 # generation even at 10Gbit/s. Requires support in the device
861 # driver. Supported drivers are ixgbe, e1000, re.
864 # The `disc' device implements a minimal network interface,
865 # which throws away all packets sent and never receives any. It is
866 # included for testing and benchmarking purposes.
869 # The `epair' device implements a virtual back-to-back connected Ethernet
870 # like interface pair.
873 # The `edsc' device implements a minimal Ethernet interface,
874 # which discards all packets sent and receives none.
877 # The `tap' device is a pty-like virtual Ethernet interface
880 # The `tun' device implements (user-)ppp and nos-tun(8)
883 # The `gif' device implements IPv6 over IP4 tunneling,
884 # IPv4 over IPv6 tunneling, IPv4 over IPv4 tunneling and
885 # IPv6 over IPv6 tunneling.
886 # The `gre' device implements GRE (Generic Routing Encapsulation) tunneling,
887 # as specified in the RFC 2784 and RFC 2890.
888 # The `me' device implements Minimal Encapsulation within IPv4 as
889 # specified in the RFC 2004.
890 # The XBONEHACK option allows the same pair of addresses to be configured on
891 # multiple gif interfaces.
897 # The `stf' device implements 6to4 encapsulation.
900 # The pf packet filter consists of three devices:
901 # The `pf' device provides /dev/pf and the firewall code itself.
902 # The `pflog' device provides the pflog0 interface which logs packets.
903 # The `pfsync' device provides the pfsync0 interface used for
904 # synchronization of firewall state tables (over the net).
912 # Common Address Redundancy Protocol. See carp(4) for more details.
918 # Link aggregation interface.
922 # Internet family options:
924 # MROUTING enables the kernel multicast packet forwarder, which works
925 # with mrouted and XORP.
927 # IPFIREWALL enables support for IP firewall construction, in
928 # conjunction with the `ipfw' program. IPFIREWALL_VERBOSE sends
929 # logged packets to the system logger. IPFIREWALL_VERBOSE_LIMIT
930 # limits the number of times a matching entry can be logged.
932 # WARNING: IPFIREWALL defaults to a policy of "deny ip from any to any"
933 # and if you do not add other rules during startup to allow access,
934 # YOU WILL LOCK YOURSELF OUT. It is suggested that you set firewall_type=open
935 # in /etc/rc.conf when first enabling this feature, then refining the
936 # firewall rules in /etc/rc.firewall after you've tested that the new kernel
937 # feature works properly.
939 # IPFIREWALL_DEFAULT_TO_ACCEPT causes the default rule (at boot) to
940 # allow everything. Use with care, if a cracker can crash your
941 # firewall machine, they can get to your protected machines. However,
942 # if you are using it as an as-needed filter for specific problems as
943 # they arise, then this may be for you. Changing the default to 'allow'
944 # means that you won't get stuck if the kernel and /sbin/ipfw binary get
947 # IPDIVERT enables the divert IP sockets, used by ``ipfw divert''. It
948 # depends on IPFIREWALL if compiled into the kernel.
950 # IPFIREWALL_NAT adds support for in kernel nat in ipfw, and it requires
953 # IPFIREWALL_NAT64 adds support for in kernel NAT64 in ipfw.
955 # IPFIREWALL_NPTV6 adds support for in kernel NPTv6 in ipfw.
957 # IPFIREWALL_PMOD adds support for protocols modification module. Currently
958 # it supports only TCP MSS modification.
960 # IPSTEALTH enables code to support stealth forwarding (i.e., forwarding
961 # packets without touching the TTL). This can be useful to hide firewalls
962 # from traceroute and similar tools.
964 # PF_DEFAULT_TO_DROP causes the default pf(4) rule to deny everything.
966 # TCPDEBUG enables code which keeps traces of the TCP state machine
967 # for sockets with the SO_DEBUG option set, which can then be examined
968 # using the trpt(8) utility.
970 # TCPPCAP enables code which keeps the last n packets sent and received
973 # RADIX_MPATH provides support for equal-cost multi-path routing.
975 options MROUTING # Multicast routing
976 options IPFIREWALL #firewall
977 options IPFIREWALL_VERBOSE #enable logging to syslogd(8)
978 options IPFIREWALL_VERBOSE_LIMIT=100 #limit verbosity
979 options IPFIREWALL_DEFAULT_TO_ACCEPT #allow everything by default
980 options IPFIREWALL_NAT #ipfw kernel nat support
981 options IPFIREWALL_NAT64 #ipfw kernel NAT64 support
982 options IPFIREWALL_NPTV6 #ipfw kernel IPv6 NPT support
983 options IPDIVERT #divert sockets
984 options IPFILTER #ipfilter support
985 options IPFILTER_LOG #ipfilter logging
986 options IPFILTER_LOOKUP #ipfilter pools
987 options IPFILTER_DEFAULT_BLOCK #block all packets by default
988 options IPSTEALTH #support for stealth forwarding
989 options PF_DEFAULT_TO_DROP #drop everything by default
994 # The MBUF_STRESS_TEST option enables options which create
995 # various random failures / extreme cases related to mbuf
996 # functions. See mbuf(9) for a list of available test cases.
997 # MBUF_PROFILING enables code to profile the mbuf chains
998 # exiting the system (via participating interfaces) and
999 # return a logarithmic histogram of monitored parameters
1000 # (e.g. packet size, wasted space, number of mbufs in chain).
1001 options MBUF_STRESS_TEST
1002 options MBUF_PROFILING
1004 # Statically link in accept filters
1005 options ACCEPT_FILTER_DATA
1006 options ACCEPT_FILTER_DNS
1007 options ACCEPT_FILTER_HTTP
1009 # TCP_SIGNATURE adds support for RFC 2385 (TCP-MD5) digests. These are
1010 # carried in TCP option 19. This option is commonly used to protect
1011 # TCP sessions (e.g. BGP) where IPSEC is not available nor desirable.
1012 # This is enabled on a per-socket basis using the TCP_MD5SIG socket option.
1013 # This requires the use of 'device crypto' and either 'options IPSEC' or
1014 # 'options IPSEC_SUPPORT'.
1015 options TCP_SIGNATURE #include support for RFC 2385
1017 # DUMMYNET enables the "dummynet" bandwidth limiter. You need IPFIREWALL
1018 # as well. See dummynet(4) and ipfw(8) for more info. When you run
1019 # DUMMYNET it is advisable to also have at least "options HZ=1000" to achieve
1020 # a smooth scheduling of the traffic.
1023 #####################################################################
1024 # FILESYSTEM OPTIONS
1027 # Only the root filesystem needs to be statically compiled or preloaded
1028 # as module; everything else will be automatically loaded at mount
1029 # time. Some people still prefer to statically compile other
1030 # filesystems as well.
1032 # NB: The UNION filesystem was known to be buggy in the past. It is now
1033 # being actively maintained, although there are still some issues being
1037 # One of these is mandatory:
1038 options FFS #Fast filesystem
1039 options NFSCL #Network File System client
1041 # The rest are optional:
1042 options AUTOFS #Automounter filesystem
1043 options CD9660 #ISO 9660 filesystem
1044 options FDESCFS #File descriptor filesystem
1045 options FUSE #FUSE support module
1046 options MSDOSFS #MS DOS File System (FAT, FAT32)
1047 options NFSLOCKD #Network Lock Manager
1048 options NFSD #Network Filesystem Server
1049 options KGSSAPI #Kernel GSSAPI implementation
1051 options NULLFS #NULL filesystem
1052 options PROCFS #Process filesystem (requires PSEUDOFS)
1053 options PSEUDOFS #Pseudo-filesystem framework
1054 options PSEUDOFS_TRACE #Debugging support for PSEUDOFS
1055 options SMBFS #SMB/CIFS filesystem
1056 options TMPFS #Efficient memory filesystem
1057 options UDF #Universal Disk Format
1058 options UNIONFS #Union filesystem
1059 # The xFS_ROOT options REQUIRE the associated ``options xFS''
1060 options NFS_ROOT #NFS usable as root device
1062 # Soft updates is a technique for improving filesystem speed and
1063 # making abrupt shutdown less risky.
1067 # Extended attributes allow additional data to be associated with files,
1068 # and is used for ACLs, Capabilities, and MAC labels.
1069 # See src/sys/ufs/ufs/README.extattr for more information.
1071 options UFS_EXTATTR_AUTOSTART
1073 # Access Control List support for UFS filesystems. The current ACL
1074 # implementation requires extended attribute support, UFS_EXTATTR,
1075 # for the underlying filesystem.
1076 # See src/sys/ufs/ufs/README.acls for more information.
1079 # Directory hashing improves the speed of operations on very large
1080 # directories at the expense of some memory.
1083 # Gjournal-based UFS journaling support.
1084 options UFS_GJOURNAL
1086 # Make space in the kernel for a root filesystem on a md device.
1087 # Define to the number of kilobytes to reserve for the filesystem.
1088 # This is now optional.
1089 # If not defined, the root filesystem passed in as the MFS_IMAGE makeoption
1090 # will be automatically embedded in the kernel during linking. Its exact size
1091 # will be consumed within the kernel.
1092 # If defined, the old way of embedding the filesystem in the kernel will be
1093 # used. That is to say MD_ROOT_SIZE KB will be allocated in the kernel and
1094 # later, the filesystem image passed in as the MFS_IMAGE makeoption will be
1095 # dd'd into the reserved space if it fits.
1096 options MD_ROOT_SIZE=10
1098 # Make the md device a potential root device, either with preloaded
1099 # images of type mfs_root or md_root.
1102 # Write-protect the md root device so that it may not be mounted writeable.
1103 options MD_ROOT_READONLY
1105 # Disk quotas are supported when this option is enabled.
1106 options QUOTA #enable disk quotas
1108 # If you are running a machine just as a fileserver for PC and MAC
1109 # users, using SAMBA, you may consider setting this option
1110 # and keeping all those users' directories on a filesystem that is
1111 # mounted with the suiddir option. This gives new files the same
1112 # ownership as the directory (similar to group). It's a security hole
1113 # if you let these users run programs, so confine it to file-servers
1114 # (but it'll save you lots of headaches in those cases). Root owned
1115 # directories are exempt and X bits are cleared. The suid bit must be
1116 # set on the directory as well; see chmod(1). PC owners can't see/set
1117 # ownerships so they keep getting their toes trodden on. This saves
1118 # you all the support calls as the filesystem it's used on will act as
1119 # they expect: "It's my dir so it must be my file".
1124 options NFS_MINATTRTIMO=3 # VREG attrib cache timeout in sec
1125 options NFS_MAXATTRTIMO=60
1126 options NFS_MINDIRATTRTIMO=30 # VDIR attrib cache timeout in sec
1127 options NFS_MAXDIRATTRTIMO=60
1128 options NFS_DEBUG # Enable NFS Debugging
1131 # Add support for the EXT2FS filesystem of Linux fame. Be a bit
1132 # careful with this - the ext2fs code has a tendency to lag behind
1133 # changes and not be exercised very much, so mounting read/write could
1134 # be dangerous (and even mounting read only could result in panics.)
1138 # Cryptographically secure random number generator; /dev/random
1141 # The system memory devices; /dev/mem, /dev/kmem
1144 # The kernel symbol table device; /dev/ksyms
1147 # Optional character code conversion support with LIBICONV.
1148 # Each option requires their base file system and LIBICONV.
1149 options CD9660_ICONV
1150 options MSDOSFS_ICONV
1154 #####################################################################
1157 # Real time extensions added in the 1993 POSIX
1158 # _KPOSIX_PRIORITY_SCHEDULING: Build in _POSIX_PRIORITY_SCHEDULING
1160 options _KPOSIX_PRIORITY_SCHEDULING
1161 # p1003_1b_semaphores are very experimental,
1162 # user should be ready to assist in debugging if problems arise.
1163 options P1003_1B_SEMAPHORES
1165 # POSIX message queue
1166 options P1003_1B_MQUEUE
1168 #####################################################################
1169 # SECURITY POLICY PARAMETERS
1171 # Support for BSM audit
1174 # Support for Mandatory Access Control (MAC):
1177 options MAC_BSDEXTENDED
1182 options MAC_PARTITION
1184 options MAC_SEEOTHERUIDS
1188 # Support for Capsicum
1189 options CAPABILITIES # fine-grained rights on file descriptors
1190 options CAPABILITY_MODE # sandboxes with no global namespace access
1193 #####################################################################
1196 # The granularity of operation is controlled by the kernel option HZ whose
1197 # default value (1000 on most architectures) means a granularity of 1ms
1198 # (1s/HZ). Historically, the default was 100, but finer granularity is
1199 # required for DUMMYNET and other systems on modern hardware. There are
1200 # reasonable arguments that HZ should, in fact, be 100 still; consider,
1201 # that reducing the granularity too much might cause excessive overhead in
1202 # clock interrupt processing, potentially causing ticks to be missed and thus
1203 # actually reducing the accuracy of operation.
1207 # Enable support for the kernel PLL to use an external PPS signal,
1208 # under supervision of [x]ntpd(8)
1209 # More info in ntpd documentation: http://www.eecis.udel.edu/~ntp
1213 # Enable support for generic feed-forward clocks in the kernel.
1214 # The feed-forward clock support is an alternative to the feedback oriented
1215 # ntpd/system clock approach, and is to be used with a feed-forward
1216 # synchronization algorithm such as the RADclock:
1217 # More info here: http://www.synclab.org/radclock
1222 #####################################################################
1225 # SCSI DEVICE CONFIGURATION
1227 # The SCSI subsystem consists of the `base' SCSI code, a number of
1228 # high-level SCSI device `type' drivers, and the low-level host-adapter
1229 # device drivers. The host adapters are listed in the ISA and PCI
1230 # device configuration sections below.
1232 # It is possible to wire down your SCSI devices so that a given bus,
1233 # target, and LUN always come on line as the same device unit. In
1234 # earlier versions the unit numbers were assigned in the order that
1235 # the devices were probed on the SCSI bus. This means that if you
1236 # removed a disk drive, you may have had to rewrite your /etc/fstab
1237 # file, and also that you had to be careful when adding a new disk
1238 # as it may have been probed earlier and moved your device configuration
1239 # around. (See also option GEOM_VOL for a different solution to this
1242 # This old behavior is maintained as the default behavior. The unit
1243 # assignment begins with the first non-wired down unit for a device
1244 # type. For example, if you wire a disk as "da3" then the first
1245 # non-wired disk will be assigned da4.
1247 # The syntax for wiring down devices is:
1249 hint.scbus.0.at="ahc0"
1250 hint.scbus.1.at="ahc1"
1251 hint.scbus.1.bus="0"
1252 hint.scbus.3.at="ahc2"
1253 hint.scbus.3.bus="0"
1254 hint.scbus.2.at="ahc2"
1255 hint.scbus.2.bus="1"
1256 hint.da.0.at="scbus0"
1257 hint.da.0.target="0"
1259 hint.da.1.at="scbus3"
1260 hint.da.1.target="1"
1261 hint.da.2.at="scbus2"
1262 hint.da.2.target="3"
1263 hint.sa.1.at="scbus1"
1264 hint.sa.1.target="6"
1266 # "units" (SCSI logical unit number) that are not specified are
1267 # treated as if specified as LUN 0.
1269 # All SCSI devices allocate as many units as are required.
1271 # The ch driver drives SCSI Media Changer ("jukebox") devices.
1273 # The da driver drives SCSI Direct Access ("disk") and Optical Media
1276 # The sa driver drives SCSI Sequential Access ("tape") devices.
1278 # The cd driver drives SCSI Read Only Direct Access ("cd") devices.
1280 # The ses driver drives SCSI Environment Services ("ses") and
1281 # SAF-TE ("SCSI Accessible Fault-Tolerant Enclosure") devices.
1283 # The pt driver drives SCSI Processor devices.
1285 # The sg driver provides a passthrough API that is compatible with the
1286 # Linux SG driver. It will work in conjunction with the COMPAT_LINUX
1287 # option to run linux SG apps. It can also stand on its own and provide
1288 # source level API compatibility for porting apps to FreeBSD.
1290 # Target Mode support is provided here but also requires that a SIM
1291 # (SCSI Host Adapter Driver) provide support as well.
1293 # The targ driver provides target mode support as a Processor type device.
1294 # It exists to give the minimal context necessary to respond to Inquiry
1295 # commands. There is a sample user application that shows how the rest
1296 # of the command support might be done in /usr/share/examples/scsi_target.
1298 # The targbh driver provides target mode support and exists to respond
1299 # to incoming commands that do not otherwise have a logical unit assigned
1302 # The pass driver provides a passthrough API to access the CAM subsystem.
1304 device scbus #base SCSI code
1305 device ch #SCSI media changers
1306 device da #SCSI direct access devices (aka disks)
1307 device sa #SCSI tapes
1308 device cd #SCSI CD-ROMs
1309 device ses #Enclosure Services (SES and SAF-TE)
1310 device pt #SCSI processor
1311 device targ #SCSI Target Mode Code
1312 device targbh #SCSI Target Mode Blackhole Device
1313 device pass #CAM passthrough driver
1314 device sg #Linux SCSI passthrough
1315 device ctl #CAM Target Layer
1318 # debugging options:
1319 # CAMDEBUG Compile in all possible debugging.
1320 # CAM_DEBUG_COMPILE Debug levels to compile in.
1321 # CAM_DEBUG_FLAGS Debug levels to enable on boot.
1322 # CAM_DEBUG_BUS Limit debugging to the given bus.
1323 # CAM_DEBUG_TARGET Limit debugging to the given target.
1324 # CAM_DEBUG_LUN Limit debugging to the given lun.
1325 # CAM_DEBUG_DELAY Delay in us after printing each debug line.
1327 # CAM_MAX_HIGHPOWER: Maximum number of concurrent high power (start unit) cmds
1328 # SCSI_NO_SENSE_STRINGS: When defined disables sense descriptions
1329 # SCSI_NO_OP_STRINGS: When defined disables opcode descriptions
1330 # SCSI_DELAY: The number of MILLISECONDS to freeze the SIM (scsi adapter)
1331 # queue after a bus reset, and the number of milliseconds to
1332 # freeze the device queue after a bus device reset. This
1333 # can be changed at boot and runtime with the
1334 # kern.cam.scsi_delay tunable/sysctl.
1336 options CAM_DEBUG_COMPILE=-1
1337 options CAM_DEBUG_FLAGS=(CAM_DEBUG_INFO|CAM_DEBUG_PROBE|CAM_DEBUG_PERIPH)
1338 options CAM_DEBUG_BUS=-1
1339 options CAM_DEBUG_TARGET=-1
1340 options CAM_DEBUG_LUN=-1
1341 options CAM_DEBUG_DELAY=1
1342 options CAM_MAX_HIGHPOWER=4
1343 options SCSI_NO_SENSE_STRINGS
1344 options SCSI_NO_OP_STRINGS
1345 options SCSI_DELAY=5000 # Be pessimistic about Joe SCSI device
1346 options CAM_IOSCHED_DYNAMIC
1348 # Options for the CAM CDROM driver:
1349 # CHANGER_MIN_BUSY_SECONDS: Guaranteed minimum time quantum for a changer LUN
1350 # CHANGER_MAX_BUSY_SECONDS: Maximum time quantum per changer LUN, only
1351 # enforced if there is I/O waiting for another LUN
1352 # The compiled in defaults for these variables are 2 and 10 seconds,
1355 # These can also be changed on the fly with the following sysctl variables:
1356 # kern.cam.cd.changer.min_busy_seconds
1357 # kern.cam.cd.changer.max_busy_seconds
1359 options CHANGER_MIN_BUSY_SECONDS=2
1360 options CHANGER_MAX_BUSY_SECONDS=10
1362 # Options for the CAM sequential access driver:
1363 # SA_IO_TIMEOUT: Timeout for read/write/wfm operations, in minutes
1364 # SA_SPACE_TIMEOUT: Timeout for space operations, in minutes
1365 # SA_REWIND_TIMEOUT: Timeout for rewind operations, in minutes
1366 # SA_ERASE_TIMEOUT: Timeout for erase operations, in minutes
1367 # SA_1FM_AT_EOD: Default to model which only has a default one filemark at EOT.
1368 options SA_IO_TIMEOUT=4
1369 options SA_SPACE_TIMEOUT=60
1370 options SA_REWIND_TIMEOUT=(2*60)
1371 options SA_ERASE_TIMEOUT=(4*60)
1372 options SA_1FM_AT_EOD
1374 # Optional timeout for the CAM processor target (pt) device
1375 # This is specified in seconds. The default is 60 seconds.
1376 options SCSI_PT_DEFAULT_TIMEOUT=60
1378 # Optional enable of doing SES passthrough on other devices (e.g., disks)
1380 # Normally disabled because a lot of newer SCSI disks report themselves
1381 # as having SES capabilities, but this can then clot up attempts to build
1382 # a topology with the SES device that's on the box these drives are in....
1383 options SES_ENABLE_PASSTHROUGH
1386 #####################################################################
1387 # MISCELLANEOUS DEVICES AND OPTIONS
1389 device pty #BSD-style compatibility pseudo ttys
1390 device nmdm #back-to-back tty devices
1391 device md #Memory/malloc disk
1392 device snp #Snoop device - to look at pty/vty/etc..
1393 device ccd #Concatenated disk driver
1394 device firmware #firmware(9) support
1396 # Kernel side iconv library
1399 # Size of the kernel message buffer. Should be N * pagesize.
1400 options MSGBUF_SIZE=40960
1403 #####################################################################
1404 # HARDWARE BUS CONFIGURATION
1407 # PCI bus & PCI options:
1410 options PCI_HP # PCI-Express native HotPlug
1411 options PCI_IOV # PCI SR-IOV support
1414 #####################################################################
1415 # HARDWARE DEVICE CONFIGURATION
1417 # For ISA the required hints are listed.
1418 # EISA, MCA, PCI, CardBus, SD/MMC and pccard are self identifying buses, so
1419 # no hints are needed.
1422 # Mandatory devices:
1425 # These options are valid for other keyboard drivers as well.
1426 options KBD_DISABLE_KEYMAP_LOAD # refuse to load a keymap
1427 options KBD_INSTALL_CDEV # install a CDEV entry in /dev
1429 device kbdmux # keyboard multiplexer
1430 options KBDMUX_DFLT_KEYMAP # specify the built-in keymap
1431 makeoptions KBDMUX_DFLT_KEYMAP=it.iso
1433 options FB_DEBUG # Frame buffer debugging
1435 device splash # Splash screen and screen saver support
1437 # Various screen savers.
1450 # The syscons console driver (SCO color console compatible).
1453 options MAXCONS=16 # number of virtual consoles
1454 options SC_ALT_MOUSE_IMAGE # simplified mouse cursor in text mode
1455 options SC_DFLT_FONT # compile font in
1456 makeoptions SC_DFLT_FONT=cp850
1457 options SC_DISABLE_KDBKEY # disable `debug' key
1458 options SC_DISABLE_REBOOT # disable reboot key sequence
1459 options SC_HISTORY_SIZE=200 # number of history buffer lines
1460 options SC_MOUSE_CHAR=0x3 # char code for text mode mouse cursor
1461 options SC_PIXEL_MODE # add support for the raster text mode
1463 # The following options will let you change the default colors of syscons.
1464 options SC_NORM_ATTR=(FG_GREEN|BG_BLACK)
1465 options SC_NORM_REV_ATTR=(FG_YELLOW|BG_GREEN)
1466 options SC_KERNEL_CONS_ATTR=(FG_RED|BG_BLACK)
1467 options SC_KERNEL_CONS_REV_ATTR=(FG_BLACK|BG_RED)
1469 # The following options will let you change the default behavior of
1470 # cut-n-paste feature
1471 options SC_CUT_SPACES2TABS # convert leading spaces into tabs
1472 options SC_CUT_SEPCHARS=\"x09\" # set of characters that delimit words
1473 # (default is single space - \"x20\")
1475 # If you have a two button mouse, you may want to add the following option
1476 # to use the right button of the mouse to paste text.
1477 options SC_TWOBUTTON_MOUSE
1479 # You can selectively disable features in syscons.
1480 options SC_NO_CUTPASTE
1481 options SC_NO_FONT_LOADING
1482 options SC_NO_HISTORY
1483 options SC_NO_MODE_CHANGE
1484 options SC_NO_SYSMOUSE
1485 options SC_NO_SUSPEND_VTYSWITCH
1488 # 0x80 Put the video card in the VESA 800x600 dots, 16 color mode
1489 # 0x100 Probe for a keyboard device periodically if one is not present
1491 # Enable experimental features of the syscons terminal emulator (teken).
1492 options TEKEN_CONS25 # cons25-style terminal emulation
1493 options TEKEN_UTF8 # UTF-8 output handling
1495 # The vt video console driver.
1497 options VT_ALT_TO_ESC_HACK=1 # Prepend ESC sequence to ALT keys
1498 options VT_MAXWINDOWS=16 # Number of virtual consoles
1499 options VT_TWOBUTTON_MOUSE # Use right mouse button to paste
1501 # The following options set the default framebuffer size.
1502 options VT_FB_DEFAULT_HEIGHT=480
1503 options VT_FB_DEFAULT_WIDTH=640
1505 # The following options will let you change the default vt terminal colors.
1506 options TERMINAL_NORM_ATTR=(FG_GREEN|BG_BLACK)
1507 options TERMINAL_KERN_ATTR=(FG_LIGHTRED|BG_BLACK)
1514 # SCSI host adapters:
1516 # adv: All Narrow SCSI bus AdvanSys controllers.
1517 # adw: Second Generation AdvanSys controllers including the ADV940UW.
1518 # aha: Adaptec 154x/1535/1640
1519 # ahb: Adaptec 174x EISA controllers
1520 # ahc: Adaptec 274x/284x/2910/293x/294x/394x/3950x/3960x/398X/4944/
1521 # 19160x/29160x, aic7770/aic78xx
1522 # ahd: Adaptec 29320/39320 Controllers.
1523 # aic: Adaptec 6260/6360, APA-1460 (PC Card), NEC PC9801-100 (C-BUS)
1524 # bt: Most Buslogic controllers: including BT-445, BT-54x, BT-64x, BT-74x,
1525 # BT-75x, BT-946, BT-948, BT-956, BT-958, SDC3211B, SDC3211F, SDC3222F
1526 # esp: Emulex ESP, NCR 53C9x and QLogic FAS families based controllers
1527 # including the AMD Am53C974 (found on devices such as the Tekram
1528 # DC-390(T)) and the Sun ESP and FAS families of controllers
1529 # isp: Qlogic ISP 1020, 1040 and 1040B PCI SCSI host adapters,
1530 # ISP 1240 Dual Ultra SCSI, ISP 1080 and 1280 (Dual) Ultra2,
1531 # ISP 12160 Ultra3 SCSI,
1532 # Qlogic ISP 2100 and ISP 2200 1Gb Fibre Channel host adapters.
1533 # Qlogic ISP 2300 and ISP 2312 2Gb Fibre Channel host adapters.
1534 # Qlogic ISP 2322 and ISP 6322 2Gb Fibre Channel host adapters.
1535 # ispfw: Firmware module for Qlogic host adapters
1536 # mpt: LSI-Logic MPT/Fusion 53c1020 or 53c1030 Ultra4
1537 # or FC9x9 Fibre Channel host adapters.
1538 # ncr: NCR 53C810, 53C825 self-contained SCSI host adapters.
1539 # sym: Symbios/Logic 53C8XX family of PCI-SCSI I/O processors:
1540 # 53C810, 53C810A, 53C815, 53C825, 53C825A, 53C860, 53C875,
1541 # 53C876, 53C885, 53C895, 53C895A, 53C896, 53C897, 53C1510D,
1542 # 53C1010-33, 53C1010-66.
1543 # trm: Tekram DC395U/UW/F DC315U adapters.
1547 # Note that the order is important in order for Buslogic ISA/EISA cards to be
1552 hint.bt.0.port="0x330"
1564 device iscsi_initiator
1566 hint.isp.0.disable="1"
1568 hint.isp.0.prefer_iomap="1"
1569 hint.isp.0.prefer_memmap="1"
1570 hint.isp.0.fwload_disable="1"
1571 hint.isp.0.ignore_nvram="1"
1572 hint.isp.0.fullduplex="1"
1573 hint.isp.0.topology="lport"
1574 hint.isp.0.topology="nport"
1575 hint.isp.0.topology="lport-only"
1576 hint.isp.0.topology="nport-only"
1577 # we can't get u_int64_t types, nor can we get strings if it's got
1578 # a leading 0x, hence this silly dodge.
1579 hint.isp.0.portwnn="w50000000aaaa0000"
1580 hint.isp.0.nodewnn="w50000000aaaa0001"
1588 hint.wds.0.port="0x350"
1592 # The aic7xxx driver will attempt to use memory mapped I/O for all PCI
1593 # controllers that have it configured only if this option is set. Unfortunately,
1594 # this doesn't work on some motherboards, which prevents it from being the
1596 options AHC_ALLOW_MEMIO
1598 # Dump the contents of the ahc controller configuration PROM.
1599 options AHC_DUMP_EEPROM
1601 # Bitmap of units to enable targetmode operations.
1602 options AHC_TMODE_ENABLE
1604 # Compile in Aic7xxx Debugging code.
1607 # Aic7xxx driver debugging options. See sys/dev/aic7xxx/aic7xxx.h
1608 options AHC_DEBUG_OPTS
1610 # Print register bitfields in debug output. Adds ~128k to driver
1612 options AHC_REG_PRETTY_PRINT
1614 # Compile in aic79xx debugging code.
1617 # Aic79xx driver debugging options. Adds ~215k to driver. See ahd(4).
1618 options AHD_DEBUG_OPTS=0xFFFFFFFF
1620 # Print human-readable register definitions when debugging
1621 options AHD_REG_PRETTY_PRINT
1623 # Bitmap of units to enable targetmode operations.
1624 options AHD_TMODE_ENABLE
1626 # The adw driver will attempt to use memory mapped I/O for all PCI
1627 # controllers that have it configured only if this option is set.
1628 options ADW_ALLOW_MEMIO
1630 # Options used in dev/iscsi (Software iSCSI stack)
1632 options ISCSI_INITIATOR_DEBUG=9
1634 # Options used in dev/isp/ (Qlogic SCSI/FC driver).
1636 # ISP_TARGET_MODE - enable target mode operation
1638 options ISP_TARGET_MODE=1
1640 # ISP_DEFAULT_ROLES - default role
1644 # both=3 (not supported currently)
1646 # ISP_INTERNAL_TARGET (trivial internal disk target, for testing)
1648 options ISP_DEFAULT_ROLES=0
1650 # Options used in dev/sym/ (Symbios SCSI driver).
1651 #options SYM_SETUP_LP_PROBE_MAP #-Low Priority Probe Map (bits)
1652 # Allows the ncr to take precedence
1653 # 1 (1<<0) -> 810a, 860
1654 # 2 (1<<1) -> 825a, 875, 885, 895
1655 # 4 (1<<2) -> 895a, 896, 1510d
1656 #options SYM_SETUP_SCSI_DIFF #-HVD support for 825a, 875, 885
1657 # disabled:0 (default), enabled:1
1658 #options SYM_SETUP_PCI_PARITY #-PCI parity checking
1659 # disabled:0, enabled:1 (default)
1660 #options SYM_SETUP_MAX_LUN #-Number of LUNs supported
1661 # default:8, range:[1..64]
1663 # The 'dpt' driver provides support for old DPT controllers (http://www.dpt.com/).
1664 # These have hardware RAID-{0,1,5} support, and do multi-initiator I/O.
1665 # The DPT controllers are commonly re-licensed under other brand-names -
1666 # some controllers by Olivetti, Dec, HP, AT&T, SNI, AST, Alphatronic, NEC and
1667 # Compaq are actually DPT controllers.
1669 # See src/sys/dev/dpt for debugging and other subtle options.
1670 # DPT_MEASURE_PERFORMANCE Enables a set of (semi)invasive metrics. Various
1671 # instruments are enabled. The tools in
1672 # /usr/sbin/dpt_* assume these to be enabled.
1673 # DPT_DEBUG_xxxx These are controllable from sys/dev/dpt/dpt.h
1674 # DPT_RESET_HBA Make "reset" actually reset the controller
1675 # instead of fudging it. Only enable this if you
1676 # are 100% certain you need it.
1681 #!CAM# options DPT_MEASURE_PERFORMANCE
1682 options DPT_RESET_HBA
1685 # Compaq "CISS" RAID controllers (SmartRAID 5* series)
1686 # These controllers have a SCSI-like interface, and require the
1687 # CAM infrastructure.
1692 # Intel Integrated RAID controllers.
1693 # This driver was developed and is maintained by Intel. Contacts
1694 # at Intel for this driver are
1695 # "Kannanthanam, Boji T" <boji.t.kannanthanam@intel.com> and
1696 # "Leubner, Achim" <achim.leubner@intel.com>.
1701 # Mylex AcceleRAID and eXtremeRAID controllers with v6 and later
1702 # firmware. These controllers have a SCSI-like interface, and require
1703 # the CAM infrastructure.
1708 # Compaq Smart RAID, Mylex DAC960 and AMI MegaRAID controllers. Only
1709 # one entry is needed; the code will find and configure all supported
1712 device ida # Compaq Smart RAID
1713 device mlx # Mylex DAC960
1714 device amr # AMI MegaRAID
1715 device amrp # SCSI Passthrough interface (optional, CAM req.)
1716 device mfi # LSI MegaRAID SAS
1717 device mfip # LSI MegaRAID SAS passthrough, requires CAM
1719 device mrsas # LSI/Avago MegaRAID SAS/SATA, 6Gb/s and 12Gb/s
1724 device twe # 3ware ATA RAID
1727 # Serial ATA host controllers:
1729 # ahci: Advanced Host Controller Interface (AHCI) compatible
1730 # mvs: Marvell 88SX50XX/88SX60XX/88SX70XX/SoC controllers
1731 # siis: SiliconImage SiI3124/SiI3132/SiI3531 controllers
1733 # These drivers are part of cam(4) subsystem. They supersede less featured
1734 # ata(4) subsystem drivers, supporting same hardware.
1741 # The 'ATA' driver supports all legacy ATA/ATAPI controllers, including
1742 # PC Card devices. You only need one "device ata" for it to find all
1743 # PCI and PC Card ATA/ATAPI devices on modern machines.
1744 # Alternatively, individual bus and chipset drivers may be chosen by using
1745 # the 'atacore' driver then selecting the drivers on a per vendor basis.
1746 # For example to build a system which only supports a VIA chipset,
1747 # omit 'ata' and include the 'atacore', 'atapci' and 'atavia' drivers.
1751 #device atacore # Core ATA functionality
1752 #device atapccard # CARDBUS support
1753 #device atabus # PC98 cbus support
1754 #device ataisa # ISA bus support
1755 #device atapci # PCI bus support; only generic chipset support
1758 #device ataacard # ACARD
1759 #device ataacerlabs # Acer Labs Inc. (ALI)
1760 #device ataamd # American Micro Devices (AMD)
1761 #device ataati # ATI
1762 #device atacenatek # Cenatek
1763 #device atacypress # Cypress
1764 #device atacyrix # Cyrix
1765 #device atahighpoint # HighPoint
1766 #device ataintel # Intel
1767 #device ataite # Integrated Technology Inc. (ITE)
1768 #device atajmicron # JMicron
1769 #device atamarvell # Marvell
1770 #device atamicron # Micron
1771 #device atanational # National
1772 #device atanetcell # NetCell
1773 #device atanvidia # nVidia
1774 #device atapromise # Promise
1775 #device ataserverworks # ServerWorks
1776 #device atasiliconimage # Silicon Image Inc. (SiI) (formerly CMD)
1777 #device atasis # Silicon Integrated Systems Corp.(SiS)
1778 #device atavia # VIA Technologies Inc.
1781 # For older non-PCI, non-PnPBIOS systems, these are the hints lines to add:
1783 hint.ata.0.port="0x1f0"
1786 hint.ata.1.port="0x170"
1790 # Standard floppy disk controllers and floppy tapes, supports
1791 # the Y-E DATA External FDD (PC Card)
1795 hint.fdc.0.port="0x3F0"
1799 # FDC_DEBUG enables floppy debugging. Since the debug output is huge, you
1800 # gotta turn it actually on by setting the variable fd_debug with DDB,
1804 # Activate this line if you happen to have an Insight floppy tape.
1805 # Probing them proved to be dangerous for people with floppy disks only,
1806 # so it's "hidden" behind a flag:
1807 #hint.fdc.0.flags="1"
1809 # Specify floppy devices
1816 # uart: newbusified driver for serial interfaces. It consolidates the sio(4),
1817 # sab(4) and zs(4) drivers.
1821 # Options for uart(4)
1822 options UART_PPS_ON_CTS # Do time pulse capturing using CTS
1824 options UART_POLL_FREQ # Set polling rate, used when hw has
1825 # no interrupt support (50 Hz default).
1827 # The following hint should only be used for pure ISA devices. It is not
1828 # needed otherwise. Use of hints is strongly discouraged.
1829 hint.uart.0.at="isa"
1831 # The following 3 hints are used when the UART is a system device (i.e., a
1832 # console or debug port), but only on platforms that don't have any other
1833 # means to pass the information to the kernel. The unit number of the hint
1834 # is only used to bundle the hints together. There is no relation to the
1835 # unit number of the probed UART.
1836 hint.uart.0.port="0x3f8"
1837 hint.uart.0.flags="0x10"
1838 hint.uart.0.baud="115200"
1840 # `flags' for serial drivers that support consoles like sio(4) and uart(4):
1841 # 0x10 enable console support for this unit. Other console flags
1842 # (if applicable) are ignored unless this is set. Enabling
1843 # console support does not make the unit the preferred console.
1844 # Boot with -h or set boot_serial=YES in the loader. For sio(4)
1845 # specifically, the 0x20 flag can also be set (see above).
1846 # Currently, at most one unit can have console support; the
1847 # first one (in config file order) with this flag set is
1848 # preferred. Setting this flag for sio0 gives the old behavior.
1849 # 0x80 use this port for serial line gdb support in ddb. Also known
1853 # Options for serial drivers that support consoles:
1854 options BREAK_TO_DEBUGGER # A BREAK/DBG on the console goes to
1855 # ddb, if available.
1857 # Solaris implements a new BREAK which is initiated by a character
1858 # sequence CR ~ ^b which is similar to a familiar pattern used on
1859 # Sun servers by the Remote Console. There are FreeBSD extensions:
1860 # CR ~ ^p requests force panic and CR ~ ^r requests a clean reboot.
1861 options ALT_BREAK_TO_DEBUGGER
1863 # Serial Communications Controller
1864 # Supports the Siemens SAB 82532 and Zilog Z8530 multi-channel
1865 # communications controllers.
1868 # PCI Universal Communications driver
1869 # Supports various multi port PCI I/O cards.
1873 # Network interfaces:
1875 # MII bus support is required for many PCI Ethernet NICs,
1876 # namely those which use MII-compliant transceivers or implement
1877 # transceiver control interfaces that operate like an MII. Adding
1878 # "device miibus" to the kernel config pulls in support for the generic
1879 # miibus API, the common support for for bit-bang'ing the MII and all
1880 # of the PHY drivers, including a generic one for PHYs that aren't
1881 # specifically handled by an individual driver. Support for specific
1882 # PHYs may be built by adding "device mii", "device mii_bitbang" if
1883 # needed by the NIC driver and then adding the appropriate PHY driver.
1884 device mii # Minimal MII support
1885 device mii_bitbang # Common module for bit-bang'ing the MII
1886 device miibus # MII support w/ bit-bang'ing and all PHYs
1888 device acphy # Altima Communications AC101
1889 device amphy # AMD AM79c873 / Davicom DM910{1,2}
1890 device atphy # Attansic/Atheros F1
1891 device axphy # Asix Semiconductor AX88x9x
1892 device bmtphy # Broadcom BCM5201/BCM5202 and 3Com 3c905C
1893 device bnxt # Broadcom NetXtreme-C/NetXtreme-E
1894 device brgphy # Broadcom BCM54xx/57xx 1000baseTX
1895 device ciphy # Cicada/Vitesse CS/VSC8xxx
1896 device e1000phy # Marvell 88E1000 1000/100/10-BT
1897 device gentbi # Generic 10-bit 1000BASE-{LX,SX} fiber ifaces
1898 device icsphy # ICS ICS1889-1893
1899 device ip1000phy # IC Plus IP1000A/IP1001
1900 device jmphy # JMicron JMP211/JMP202
1901 device lxtphy # Level One LXT-970
1902 device mlphy # Micro Linear 6692
1903 device nsgphy # NatSemi DP8361/DP83865/DP83891
1904 device nsphy # NatSemi DP83840A
1905 device nsphyter # NatSemi DP83843/DP83815
1906 device pnaphy # HomePNA
1907 device qsphy # Quality Semiconductor QS6612
1908 device rdcphy # RDC Semiconductor R6040
1909 device rgephy # RealTek 8169S/8110S/8211B/8211C
1910 device rlphy # RealTek 8139
1911 device rlswitch # RealTek 8305
1912 device smcphy # SMSC LAN91C111
1913 device tdkphy # TDK 89Q2120
1914 device tlphy # Texas Instruments ThunderLAN
1915 device truephy # LSI TruePHY
1916 device xmphy # XaQti XMAC II
1918 # an: Aironet 4500/4800 802.11 wireless adapters. Supports the PCMCIA,
1919 # PCI and ISA varieties.
1920 # ae: Support for gigabit ethernet adapters based on the Attansic/Atheros
1921 # L2 PCI-Express FastEthernet controllers.
1922 # age: Support for gigabit ethernet adapters based on the Attansic/Atheros
1923 # L1 PCI express gigabit ethernet controllers.
1924 # alc: Support for Atheros AR8131/AR8132 PCIe ethernet controllers.
1925 # ale: Support for Atheros AR8121/AR8113/AR8114 PCIe ethernet controllers.
1926 # ath: Atheros a/b/g WiFi adapters (requires ath_hal and wlan)
1927 # bce: Broadcom NetXtreme II (BCM5706/BCM5708) PCI/PCIe Gigabit Ethernet
1929 # bfe: Broadcom BCM4401 Ethernet adapter.
1930 # bge: Support for gigabit ethernet adapters based on the Broadcom
1931 # BCM570x family of controllers, including the 3Com 3c996-T,
1932 # the Netgear GA302T, the SysKonnect SK-9D21 and SK-9D41, and
1933 # the embedded gigE NICs on Dell PowerEdge 2550 servers.
1934 # bnxt: Broadcom NetXtreme-C and NetXtreme-E PCIe 10/25/50G Ethernet adapters.
1935 # bxe: Broadcom NetXtreme II (BCM5771X/BCM578XX) PCIe 10Gb Ethernet
1937 # bwi: Broadcom BCM430* and BCM431* family of wireless adapters.
1938 # bwn: Broadcom BCM43xx family of wireless adapters.
1939 # cas: Sun Cassini/Cassini+ and National Semiconductor DP83065 Saturn
1940 # cm: Arcnet SMC COM90c26 / SMC COM90c56
1941 # (and SMC COM90c66 in '56 compatibility mode) adapters.
1942 # cxgb: Chelsio T3 based 1GbE/10GbE PCIe Ethernet adapters.
1943 # cxgbe:Chelsio T4, T5, and T6-based 1/10/25/40/100GbE PCIe Ethernet
1945 # cxgbev: Chelsio T4, T5, and T6-based PCIe Virtual Functions.
1946 # dc: Support for PCI fast ethernet adapters based on the DEC/Intel 21143
1947 # and various workalikes including:
1948 # the ADMtek AL981 Comet and AN985 Centaur, the ASIX Electronics
1949 # AX88140A and AX88141, the Davicom DM9100 and DM9102, the Lite-On
1950 # 82c168 and 82c169 PNIC, the Lite-On/Macronix LC82C115 PNIC II
1951 # and the Macronix 98713/98713A/98715/98715A/98725 PMAC. This driver
1952 # replaces the old al, ax, dm, pn and mx drivers. List of brands:
1953 # Digital DE500-BA, Kingston KNE100TX, D-Link DFE-570TX, SOHOware SFA110,
1954 # SVEC PN102-TX, CNet Pro110B, 120A, and 120B, Compex RL100-TX,
1955 # LinkSys LNE100TX, LNE100TX V2.0, Jaton XpressNet, Alfa Inc GFC2204,
1957 # de: Digital Equipment DC21040
1958 # em: Intel Pro/1000 Gigabit Ethernet 82542, 82543, 82544 based adapters.
1959 # igb: Intel Pro/1000 PCI Express Gigabit Ethernet: 82575 and later adapters.
1960 # ep: 3Com 3C509, 3C529, 3C556, 3C562D, 3C563D, 3C572, 3C574X, 3C579, 3C589
1961 # and PC Card devices using these chipsets.
1962 # ex: Intel EtherExpress Pro/10 and other i82595-based adapters,
1963 # Olicom Ethernet PC Card devices.
1964 # fe: Fujitsu MB86960A/MB86965A Ethernet
1965 # fea: DEC DEFEA EISA FDDI adapter
1966 # fpa: Support for the Digital DEFPA PCI FDDI. `device fddi' is also needed.
1967 # fxp: Intel EtherExpress Pro/100B
1968 # (hint of prefer_iomap can be done to prefer I/O instead of Mem mapping)
1969 # gem: Apple GMAC/Sun ERI/Sun GEM
1970 # hme: Sun HME (Happy Meal Ethernet)
1971 # jme: JMicron JMC260 Fast Ethernet/JMC250 Gigabit Ethernet based adapters.
1972 # le: AMD Am7900 LANCE and Am79C9xx PCnet
1973 # lge: Support for PCI gigabit ethernet adapters based on the Level 1
1974 # LXT1001 NetCellerator chipset. This includes the D-Link DGE-500SX,
1975 # SMC TigerCard 1000 (SMC9462SX), and some Addtron cards.
1976 # lio: Support for Cavium 23XX Ethernet adapters
1977 # malo: Marvell Libertas wireless NICs.
1978 # mwl: Marvell 88W8363 802.11n wireless NICs.
1979 # Requires the mwl firmware module
1980 # mwlfw: Marvell 88W8363 firmware
1981 # msk: Support for gigabit ethernet adapters based on the Marvell/SysKonnect
1982 # Yukon II Gigabit controllers, including 88E8021, 88E8022, 88E8061,
1983 # 88E8062, 88E8035, 88E8036, 88E8038, 88E8050, 88E8052, 88E8053,
1984 # 88E8055, 88E8056 and D-Link 560T/550SX.
1985 # lmc: Support for the LMC/SBE wide-area network interface cards.
1986 # mlxfw: Mellanox firmware update module.
1987 # mlx5: Mellanox ConnectX-4 and ConnectX-4 LX IB and Eth shared code module.
1988 # mlx5en:Mellanox ConnectX-4 and ConnectX-4 LX PCIe Ethernet adapters.
1989 # my: Myson Fast Ethernet (MTD80X, MTD89X)
1990 # nge: Support for PCI gigabit ethernet adapters based on the National
1991 # Semiconductor DP83820 and DP83821 chipset. This includes the
1992 # SMC EZ Card 1000 (SMC9462TX), D-Link DGE-500T, Asante FriendlyNet
1993 # GigaNIX 1000TA and 1000TPC, the Addtron AEG320T, the Surecom
1994 # EP-320G-TX and the Netgear GA622T.
1995 # oce: Emulex 10 Gbit adapters (OneConnect Ethernet)
1996 # pcn: Support for PCI fast ethernet adapters based on the AMD Am79c97x
1997 # PCnet-FAST, PCnet-FAST+, PCnet-FAST III, PCnet-PRO and PCnet-Home
1998 # chipsets. These can also be handled by the le(4) driver if the
1999 # pcn(4) driver is left out of the kernel. The le(4) driver does not
2000 # support the additional features like the MII bus and burst mode of
2001 # the PCnet-FAST and greater chipsets though.
2002 # ral: Ralink Technology IEEE 802.11 wireless adapter
2003 # re: RealTek 8139C+/8169/816xS/811xS/8101E PCI/PCIe Ethernet adapter
2004 # rl: Support for PCI fast ethernet adapters based on the RealTek 8129/8139
2005 # chipset. Note that the RealTek driver defaults to using programmed
2006 # I/O to do register accesses because memory mapped mode seems to cause
2007 # severe lockups on SMP hardware. This driver also supports the
2008 # Accton EN1207D `Cheetah' adapter, which uses a chip called
2009 # the MPX 5030/5038, which is either a RealTek in disguise or a
2010 # RealTek workalike. Note that the D-Link DFE-530TX+ uses the RealTek
2011 # chipset and is supported by this driver, not the 'vr' driver.
2012 # rtwn: RealTek wireless adapters.
2013 # rtwnfw: RealTek wireless firmware.
2014 # sf: Support for Adaptec Duralink PCI fast ethernet adapters based on the
2015 # Adaptec AIC-6915 "starfire" controller.
2016 # This includes dual and quad port cards, as well as one 100baseFX card.
2017 # Most of these are 64-bit PCI devices, except for one single port
2018 # card which is 32-bit.
2019 # sge: Silicon Integrated Systems SiS190/191 Fast/Gigabit Ethernet adapter
2020 # sis: Support for NICs based on the Silicon Integrated Systems SiS 900,
2021 # SiS 7016 and NS DP83815 PCI fast ethernet controller chips.
2022 # sk: Support for the SysKonnect SK-984x series PCI gigabit ethernet NICs.
2023 # This includes the SK-9841 and SK-9842 single port cards (single mode
2024 # and multimode fiber) and the SK-9843 and SK-9844 dual port cards
2025 # (also single mode and multimode).
2026 # The driver will autodetect the number of ports on the card and
2027 # attach each one as a separate network interface.
2028 # sn: Support for ISA and PC Card Ethernet devices using the
2029 # SMC91C90/92/94/95 chips.
2030 # ste: Sundance Technologies ST201 PCI fast ethernet controller, includes
2031 # the D-Link DFE-550TX.
2032 # stge: Support for gigabit ethernet adapters based on the Sundance/Tamarack
2033 # TC9021 family of controllers, including the Sundance ST2021/ST2023,
2034 # the Sundance/Tamarack TC9021, the D-Link DL-4000 and ASUS NX1101.
2035 # ti: Support for PCI gigabit ethernet NICs based on the Alteon Networks
2036 # Tigon 1 and Tigon 2 chipsets. This includes the Alteon AceNIC, the
2037 # 3Com 3c985, the Netgear GA620 and various others. Note that you will
2038 # probably want to bump up kern.ipc.nmbclusters a lot to use this driver.
2039 # tl: Support for the Texas Instruments TNETE100 series 'ThunderLAN'
2040 # cards and integrated ethernet controllers. This includes several
2041 # Compaq Netelligent 10/100 cards and the built-in ethernet controllers
2042 # in several Compaq Prosignia, Proliant and Deskpro systems. It also
2043 # supports several Olicom 10Mbps and 10/100 boards.
2044 # tx: SMC 9432 TX, BTX and FTX cards. (SMC EtherPower II series)
2045 # txp: Support for 3Com 3cR990 cards with the "Typhoon" chipset
2046 # vr: Support for various fast ethernet adapters based on the VIA
2047 # Technologies VT3043 `Rhine I' and VT86C100A `Rhine II' chips,
2048 # including the D-Link DFE520TX and D-Link DFE530TX (see 'rl' for
2049 # DFE530TX+), the Hawking Technologies PN102TX, and the AOpen/Acer ALN-320.
2050 # vte: DM&P Vortex86 RDC R6040 Fast Ethernet
2051 # vx: 3Com 3C590 and 3C595
2052 # wb: Support for fast ethernet adapters based on the Winbond W89C840F chip.
2053 # Note: this is not the same as the Winbond W89C940F, which is a
2055 # wi: Lucent WaveLAN/IEEE 802.11 PCMCIA adapters. Note: this supports both
2056 # the PCMCIA and ISA cards: the ISA card is really a PCMCIA to ISA
2057 # bridge with a PCMCIA adapter plugged into it.
2058 # xe: Xircom/Intel EtherExpress Pro100/16 PC Card ethernet controller,
2059 # Accton Fast EtherCard-16, Compaq Netelligent 10/100 PC Card,
2060 # Toshiba 10/100 Ethernet PC Card, Xircom 16-bit Ethernet + Modem 56
2061 # xl: Support for the 3Com 3c900, 3c905, 3c905B and 3c905C (Fast)
2062 # Etherlink XL cards and integrated controllers. This includes the
2063 # integrated 3c905B-TX chips in certain Dell Optiplex and Dell
2064 # Precision desktop machines and the integrated 3c905-TX chips
2065 # in Dell Latitude laptop docking stations.
2066 # Also supported: 3Com 3c980(C)-TX, 3Com 3cSOHO100-TX, 3Com 3c450-TX
2068 # Order for ISA/EISA devices is important here
2072 hint.cm.0.port="0x2e0"
2074 hint.cm.0.maddr="0xdc000"
2079 hint.fe.0.port="0x300"
2083 hint.sn.0.port="0x300"
2089 # PCI Ethernet NICs that use the common MII bus controller code.
2090 device ae # Attansic/Atheros L2 FastEthernet
2091 device age # Attansic/Atheros L1 Gigabit Ethernet
2092 device alc # Atheros AR8131/AR8132 Ethernet
2093 device ale # Atheros AR8121/AR8113/AR8114 Ethernet
2094 device bce # Broadcom BCM5706/BCM5708 Gigabit Ethernet
2095 device bfe # Broadcom BCM440x 10/100 Ethernet
2096 device bge # Broadcom BCM570xx Gigabit Ethernet
2097 device cas # Sun Cassini/Cassini+ and NS DP83065 Saturn
2098 device dc # DEC/Intel 21143 and various workalikes
2099 device et # Agere ET1310 10/100/Gigabit Ethernet
2100 device fxp # Intel EtherExpress PRO/100B (82557, 82558)
2101 hint.fxp.0.prefer_iomap="0"
2102 device gem # Apple GMAC/Sun ERI/Sun GEM
2103 device hme # Sun HME (Happy Meal Ethernet)
2104 device jme # JMicron JMC250 Gigabit/JMC260 Fast Ethernet
2105 device lge # Level 1 LXT1001 gigabit Ethernet
2106 device mlxfw # Mellanox firmware update module
2107 device mlx5 # Shared code module between IB and Ethernet
2108 device mlx5en # Mellanox ConnectX-4 and ConnectX-4 LX
2109 device msk # Marvell/SysKonnect Yukon II Gigabit Ethernet
2110 device my # Myson Fast Ethernet (MTD80X, MTD89X)
2111 device nge # NatSemi DP83820 gigabit Ethernet
2112 device re # RealTek 8139C+/8169/8169S/8110S
2113 device rl # RealTek 8129/8139
2114 device pcn # AMD Am79C97x PCI 10/100 NICs
2115 device sf # Adaptec AIC-6915 (``Starfire'')
2116 device sge # Silicon Integrated Systems SiS190/191
2117 device sis # Silicon Integrated Systems SiS 900/SiS 7016
2118 device sk # SysKonnect SK-984x & SK-982x gigabit Ethernet
2119 device ste # Sundance ST201 (D-Link DFE-550TX)
2120 device stge # Sundance/Tamarack TC9021 gigabit Ethernet
2121 device tl # Texas Instruments ThunderLAN
2122 device tx # SMC EtherPower II (83c170 ``EPIC'')
2123 device vr # VIA Rhine, Rhine II
2124 device vte # DM&P Vortex86 RDC R6040 Fast Ethernet
2125 device wb # Winbond W89C840F
2126 device xl # 3Com 3c90x (``Boomerang'', ``Cyclone'')
2128 # PCI Ethernet NICs.
2129 device cxgb # Chelsio T3 10 Gigabit Ethernet
2130 device cxgb_t3fw # Chelsio T3 10 Gigabit Ethernet firmware
2131 device cxgbe # Chelsio T4-T6 1/10/25/40/100 Gigabit Ethernet
2132 device cxgbev # Chelsio T4-T6 Virtual Functions
2133 device de # DEC/Intel DC21x4x (``Tulip'')
2134 device em # Intel Pro/1000 Gigabit Ethernet
2135 device igb # Intel Pro/1000 PCIE Gigabit Ethernet
2136 device ixgb # Intel Pro/10Gbe PCI-X Ethernet
2137 device ix # Intel Pro/10Gbe PCIE Ethernet
2138 device ixv # Intel Pro/10Gbe PCIE Ethernet VF
2139 device le # AMD Am7900 LANCE and Am79C9xx PCnet
2140 device mxge # Myricom Myri-10G 10GbE NIC
2141 device nxge # Neterion Xframe 10GbE Server/Storage Adapter
2142 device oce # Emulex 10 GbE (OneConnect Ethernet)
2143 device ti # Alteon Networks Tigon I/II gigabit Ethernet
2144 device txp # 3Com 3cR990 (``Typhoon'')
2145 device vx # 3Com 3c590, 3c595 (``Vortex'')
2146 device vxge # Exar/Neterion XFrame 3100 10GbE
2154 # PCI IEEE 802.11 Wireless NICs
2155 device ath # Atheros pci/cardbus NIC's
2156 device ath_hal # pci/cardbus chip support
2157 #device ath_ar5210 # AR5210 chips
2158 #device ath_ar5211 # AR5211 chips
2159 #device ath_ar5212 # AR5212 chips
2166 #device ath_ar5416 # AR5416 chips
2167 options AH_SUPPORT_AR5416 # enable AR5416 tx/rx descriptors
2168 # All of the AR5212 parts have a problem when paired with the AR71xx
2169 # CPUS. These parts have a bug that triggers a fatal bus error on the AR71xx
2170 # only. Details of the exact nature of the bug are sketchy, but some can be
2171 # found at https://forum.openwrt.org/viewtopic.php?pid=70060 on pages 4, 5 and
2172 # 6. This option enables this workaround. There is a performance penalty
2173 # for this work around, but without it things don't work at all. The DMA
2174 # from the card usually bursts 128 bytes, but on the affected CPUs, only
2176 options AH_RXCFG_SDMAMW_4BYTES
2177 #device ath_ar9160 # AR9160 chips
2178 #device ath_ar9280 # AR9280 chips
2179 #device ath_ar9285 # AR9285 chips
2180 device ath_rate_sample # SampleRate tx rate control for ath
2181 device bwi # Broadcom BCM430* BCM431*
2182 device bwn # Broadcom BCM43xx
2183 device malo # Marvell Libertas wireless NICs.
2184 device mwl # Marvell 88W8363 802.11n wireless NICs.
2186 device ral # Ralink Technology RT2500 wireless NICs.
2187 device rtwn # Realtek wireless NICs
2190 # Use sf_buf(9) interface for jumbo buffers on ti(4) controllers.
2191 #options TI_SF_BUF_JUMBO
2192 # Turn on the header splitting option for the ti(4) driver firmware. This
2193 # only works for Tigon II chips, and has no effect for Tigon I chips.
2194 # This option requires the TI_SF_BUF_JUMBO option above.
2195 #options TI_JUMBO_HDRSPLIT
2197 # These two options allow manipulating the mbuf cluster size and mbuf size,
2198 # respectively. Be very careful with NIC driver modules when changing
2199 # these from their default values, because that can potentially cause a
2200 # mismatch between the mbuf size assumed by the kernel and the mbuf size
2201 # assumed by a module. The only driver that currently has the ability to
2202 # detect a mismatch is ti(4).
2203 options MCLSHIFT=12 # mbuf cluster shift in bits, 12 == 4KB
2204 options MSIZE=512 # mbuf size in bytes
2207 # ATM related options (Cranor version)
2208 # (note: this driver cannot be used with the HARP ATM stack)
2210 # The `en' device provides support for Efficient Networks (ENI)
2211 # ENI-155 PCI midway cards, and the Adaptec 155Mbps PCI ATM cards (ANA-59x0).
2213 # The `hatm' device provides support for Fore/Marconi HE155 and HE622
2216 # The `fatm' device provides support for Fore PCA200E ATM PCI cards.
2218 # The `patm' device provides support for IDT77252 based cards like
2219 # ProSum's ProATM-155 and ProATM-25 and IDT's evaluation boards.
2221 # atm device provides generic atm functions and is required for
2223 # NATM enables the netnatm protocol family that can be used to
2226 # utopia provides the access to the ATM PHY chips and is required for en,
2229 # the current driver supports only PVC operations (no atm-arp, no multicast).
2230 # for more details, please read the original documents at
2231 # http://www.ccrc.wustl.edu/pub/chuck/tech/bsdatm/bsdatm.html
2235 device fatm #Fore PCA200E
2236 device hatm #Fore/Marconi HE155/622
2237 device patm #IDT77252 cards (ProATM and IDT)
2238 device utopia #ATM PHY driver
2239 options NATM #native ATM
2241 options LIBMBPOOL #needed by patm, iatm
2246 # sound: The generic sound driver.
2252 # snd_*: Device-specific drivers.
2254 # The flags of the device tell the device a bit more info about the
2255 # device that normally is obtained through the PnP interface.
2256 # bit 2..0 secondary DMA channel;
2257 # bit 4 set if the board uses two dma channels;
2258 # bit 15..8 board type, overrides autodetection; leave it
2259 # zero if don't know what to put in (and you don't,
2260 # since this is unsupported at the moment...).
2262 # snd_ad1816: Analog Devices AD1816 ISA PnP/non-PnP.
2263 # snd_als4000: Avance Logic ALS4000 PCI.
2264 # snd_atiixp: ATI IXP 200/300/400 PCI.
2265 # snd_audiocs: Crystal Semiconductor CS4231 SBus/EBus. Only
2267 # snd_cmi: CMedia CMI8338/CMI8738 PCI.
2268 # snd_cs4281: Crystal Semiconductor CS4281 PCI.
2269 # snd_csa: Crystal Semiconductor CS461x/428x PCI. (except
2271 # snd_ds1: Yamaha DS-1 PCI.
2272 # snd_emu10k1: Creative EMU10K1 PCI and EMU10K2 (Audigy) PCI.
2273 # snd_emu10kx: Creative SoundBlaster Live! and Audigy
2274 # snd_envy24: VIA Envy24 and compatible, needs snd_spicds.
2275 # snd_envy24ht: VIA Envy24HT and compatible, needs snd_spicds.
2276 # snd_es137x: Ensoniq AudioPCI ES137x PCI.
2277 # snd_ess: Ensoniq ESS ISA PnP/non-PnP, to be used in
2278 # conjunction with snd_sbc.
2279 # snd_fm801: Forte Media FM801 PCI.
2280 # snd_gusc: Gravis UltraSound ISA PnP/non-PnP.
2281 # snd_hda: Intel High Definition Audio (Controller) and
2283 # snd_hdspe: RME HDSPe AIO and RayDAT.
2284 # snd_ich: Intel ICH AC'97 and some more audio controllers
2285 # embedded in a chipset, for example nVidia
2286 # nForce controllers.
2287 # snd_maestro: ESS Technology Maestro-1/2x PCI.
2288 # snd_maestro3: ESS Technology Maestro-3/Allegro PCI.
2289 # snd_mss: Microsoft Sound System ISA PnP/non-PnP.
2290 # snd_neomagic: Neomagic 256 AV/ZX PCI.
2291 # snd_sb16: Creative SoundBlaster16, to be used in
2292 # conjunction with snd_sbc.
2293 # snd_sb8: Creative SoundBlaster (pre-16), to be used in
2294 # conjunction with snd_sbc.
2295 # snd_sbc: Creative SoundBlaster ISA PnP/non-PnP.
2296 # Supports ESS and Avance ISA chips as well.
2297 # snd_solo: ESS Solo-1x PCI.
2298 # snd_spicds: SPI codec driver, needed by Envy24/Envy24HT drivers.
2299 # snd_t4dwave: Trident 4DWave DX/NX PCI, Sis 7018 PCI and Acer Labs
2301 # snd_uaudio: USB audio.
2302 # snd_via8233: VIA VT8233x PCI.
2303 # snd_via82c686: VIA VT82C686A PCI.
2304 # snd_vibes: S3 Sonicvibes PCI.
2337 device snd_via82c686
2340 # For non-PnP sound cards:
2344 hint.pcm.0.flags="0x0"
2346 hint.sbc.0.port="0x220"
2349 hint.sbc.0.flags="0x15"
2350 hint.gusc.0.at="isa"
2351 hint.gusc.0.port="0x220"
2354 hint.gusc.0.flags="0x13"
2357 # Following options are intended for debugging/testing purposes:
2359 # SND_DEBUG Enable extra debugging code that includes
2360 # sanity checking and possible increase of
2363 # SND_DIAGNOSTIC Similar in a spirit of INVARIANTS/DIAGNOSTIC,
2364 # zero tolerance against inconsistencies.
2366 # SND_FEEDER_MULTIFORMAT By default, only 16/32 bit feeders are compiled
2367 # in. This options enable most feeder converters
2368 # except for 8bit. WARNING: May bloat the kernel.
2370 # SND_FEEDER_FULL_MULTIFORMAT Ditto, but includes 8bit feeders as well.
2372 # SND_FEEDER_RATE_HP (feeder_rate) High precision 64bit arithmetic
2373 # as much as possible (the default trying to
2374 # avoid it). Possible slowdown.
2376 # SND_PCM_64 (Only applicable for i386/32bit arch)
2377 # Process 32bit samples through 64bit
2378 # integer/arithmetic. Slight increase of dynamic
2379 # range at a cost of possible slowdown.
2381 # SND_OLDSTEREO Only 2 channels are allowed, effectively
2382 # disabling multichannel processing.
2385 options SND_DIAGNOSTIC
2386 options SND_FEEDER_MULTIFORMAT
2387 options SND_FEEDER_FULL_MULTIFORMAT
2388 options SND_FEEDER_RATE_HP
2390 options SND_OLDSTEREO
2393 # Miscellaneous hardware:
2395 # scd: Sony CD-ROM using proprietary (non-ATAPI) interface
2396 # mcd: Mitsumi CD-ROM using proprietary (non-ATAPI) interface
2397 # bktr: Brooktree bt848/848a/849a/878/879 video capture and TV Tuner board
2398 # joy: joystick (including IO DATA PCJOY PC Card joystick)
2399 # cmx: OmniKey CardMan 4040 pccard smartcard reader
2404 hint.mcd.0.port="0x300"
2405 # for the Sony CDU31/33A CDROM
2408 hint.scd.0.port="0x230"
2409 device joy # PnP aware, hints for non-PnP only
2411 hint.joy.0.port="0x201"
2415 # The 'bktr' device is a PCI video capture device using the Brooktree
2416 # bt848/bt848a/bt849a/bt878/bt879 chipset. When used with a TV Tuner it forms a
2417 # TV card, e.g. Miro PC/TV, Hauppauge WinCast/TV WinTV, VideoLogic Captivator,
2418 # Intel Smart Video III, AverMedia, IMS Turbo, FlyVideo.
2420 # options OVERRIDE_CARD=xxx
2421 # options OVERRIDE_TUNER=xxx
2422 # options OVERRIDE_MSP=1
2423 # options OVERRIDE_DBX=1
2424 # These options can be used to override the auto detection
2425 # The current values for xxx are found in src/sys/dev/bktr/bktr_card.h
2426 # Using sysctl(8) run-time overrides on a per-card basis can be made
2428 # options BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_PAL
2430 # options BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_NTSC
2431 # Specifies the default video capture mode.
2432 # This is required for Dual Crystal (28&35MHz) boards where PAL is used
2433 # to prevent hangs during initialization, e.g. VideoLogic Captivator PCI.
2435 # options BKTR_USE_PLL
2436 # This is required for PAL or SECAM boards with a 28MHz crystal and no 35MHz
2437 # crystal, e.g. some new Bt878 cards.
2439 # options BKTR_GPIO_ACCESS
2440 # This enables IOCTLs which give user level access to the GPIO port.
2442 # options BKTR_NO_MSP_RESET
2443 # Prevents the MSP34xx reset. Good if you initialize the MSP in another OS first
2445 # options BKTR_430_FX_MODE
2446 # Switch Bt878/879 cards into Intel 430FX chipset compatibility mode.
2448 # options BKTR_SIS_VIA_MODE
2449 # Switch Bt878/879 cards into SIS/VIA chipset compatibility mode which is
2450 # needed for some old SiS and VIA chipset motherboards.
2451 # This also allows Bt878/879 chips to work on old OPTi (<1997) chipset
2452 # motherboards and motherboards with bad or incomplete PCI 2.1 support.
2453 # As a rough guess, old = before 1998
2455 # options BKTR_NEW_MSP34XX_DRIVER
2456 # Use new, more complete initialization scheme for the msp34* soundchip.
2457 # Should fix stereo autodetection if the old driver does only output
2461 # options BKTR_USE_FREEBSD_SMBUS
2462 # Compile with FreeBSD SMBus implementation
2464 # Brooktree driver has been ported to the new I2C framework. Thus,
2465 # you'll need to have the following 3 lines in the kernel config.
2470 # The iic and smb devices are only needed if you want to control other
2471 # I2C slaves connected to the external connector of some cards.
2476 # PC Card/PCMCIA and Cardbus
2478 # cbb: pci/cardbus bridge implementing YENTA interface
2479 # pccard: pccard slots
2480 # cardbus: cardbus slots
2489 # mmcsd MMC/SD memory card
2490 # sdhci Generic PCI SD Host Controller
2499 # System Management Bus support is provided by the 'smbus' device.
2500 # Access to the SMBus device is via the 'smb' device (/dev/smb*),
2501 # which is a child of the 'smbus' device.
2503 # Supported devices:
2504 # smb standard I/O through /dev/smb*
2506 # Supported SMB interfaces:
2507 # iicsmb I2C to SMB bridge with any iicbus interface
2508 # bktr brooktree848 I2C hardware interface
2509 # intpm Intel PIIX4 (82371AB, 82443MX) Power Management Unit
2510 # alpm Acer Aladdin-IV/V/Pro2 Power Management Unit
2511 # ichsmb Intel ICH SMBus controller chips (82801AA, 82801AB, 82801BA)
2512 # viapm VIA VT82C586B/596B/686A and VT8233 Power Management Unit
2513 # amdpm AMD 756 Power Management Unit
2514 # amdsmb AMD 8111 SMBus 2.0 Controller
2515 # nfpm NVIDIA nForce Power Management Unit
2516 # nfsmb NVIDIA nForce2/3/4 MCP SMBus 2.0 Controller
2517 # ismt Intel SMBus 2.0 controller chips (on Atom S1200, C2000)
2519 device smbus # Bus support, required for smb below.
2533 # SMBus peripheral devices
2535 # jedec_dimm Asset and temperature reporting for DDR3 and DDR4 DIMMs
2536 # jedec_ts Temperature Sensor compliant with JEDEC Standard 21-C
2543 # Philips i2c bus support is provided by the `iicbus' device.
2545 # Supported devices:
2546 # ic i2c network interface
2547 # iic i2c standard io
2548 # iicsmb i2c to smb bridge. Allow i2c i/o with smb commands.
2549 # iicoc simple polling driver for OpenCores I2C controller
2551 # Supported interfaces:
2552 # bktr brooktree848 I2C software interface
2555 # iicbb generic I2C bit-banging code (needed by lpbb, bktr)
2557 device iicbus # Bus support, required for ic/iic/iicsmb below.
2562 device iicsmb # smb over i2c bridge
2563 device iicoc # OpenCores I2C controller support
2565 # I2C peripheral devices
2567 device ds1307 # Dallas DS1307 RTC and compatible
2568 device ds13rtc # All Dallas/Maxim ds13xx chips
2569 device ds1672 # Dallas DS1672 RTC
2570 device ds3231 # Dallas DS3231 RTC + temperature
2571 device icee # AT24Cxxx and compatible EEPROMs
2572 device lm75 # LM75 compatible temperature sensor
2573 device nxprtc # NXP RTCs: PCA/PFC212x PCA/PCF85xx
2574 device s35390a # Seiko Instruments S-35390A RTC
2578 # Parallel port bus support is provided by the `ppbus' device.
2579 # Multiple devices may be attached to the parallel port, devices
2580 # are automatically probed and attached when found.
2582 # Supported devices:
2583 # vpo Iomega Zip Drive
2584 # Requires SCSI disk support ('scbus' and 'da'), best
2585 # performance is achieved with ports in EPP 1.9 mode.
2586 # lpt Parallel Printer
2587 # plip Parallel network interface
2588 # ppi General-purpose I/O ("Geek Port") + IEEE1284 I/O
2589 # pps Pulse per second Timing Interface
2590 # lpbb Philips official parallel port I2C bit-banging interface
2591 # pcfclock Parallel port clock driver.
2593 # Supported interfaces:
2594 # ppc ISA-bus parallel port interfaces.
2597 options PPC_PROBE_CHIPSET # Enable chipset specific detection
2598 # (see flags in ppc(4))
2599 options DEBUG_1284 # IEEE1284 signaling protocol debug
2600 options PERIPH_1284 # Makes your computer act as an IEEE1284
2601 # compliant peripheral
2602 options DONTPROBE_1284 # Avoid boot detection of PnP parallel devices
2603 options VP0_DEBUG # ZIP/ZIP+ debug
2604 options LPT_DEBUG # Printer driver debug
2605 options PPC_DEBUG # Parallel chipset level debug
2606 options PLIP_DEBUG # Parallel network IP interface debug
2607 options PCFCLOCK_VERBOSE # Verbose pcfclock driver
2608 options PCFCLOCK_MAX_RETRIES=5 # Maximum read tries (default 10)
2623 # Etherswitch framework and drivers
2625 # etherswitch The etherswitch(4) framework
2626 # miiproxy Proxy device for miibus(4) functionality
2628 # Switch hardware support:
2629 # arswitch Atheros switches
2630 # ip17x IC+ 17x family switches
2631 # rtl8366r Realtek RTL8366 switches
2632 # ukswitch Multi-PHY switches
2641 # Kernel BOOTP support
2643 options BOOTP # Use BOOTP to obtain IP address/hostname
2644 # Requires NFSCL and NFS_ROOT
2645 options BOOTP_NFSROOT # NFS mount root filesystem using BOOTP info
2646 options BOOTP_NFSV3 # Use NFS v3 to NFS mount root
2647 options BOOTP_COMPAT # Workaround for broken bootp daemons.
2648 options BOOTP_WIRED_TO=fxp0 # Use interface fxp0 for BOOTP
2649 options BOOTP_BLOCKSIZE=8192 # Override NFS block size
2652 # Enable software watchdog routines, even if hardware watchdog is present.
2653 # By default, software watchdog timer is enabled only if no hardware watchdog
2659 # Add the software deadlock resolver thread.
2664 # Disable swapping of stack pages. This option removes all
2665 # code which actually performs swapping, so it's not possible to turn
2666 # it back on at run-time.
2668 # This is sometimes usable for systems which don't have any swap space
2669 # (see also sysctls "vm.defer_swapspace_pageouts" and
2670 # "vm.disable_swapspace_pageouts")
2672 #options NO_SWAPPING
2674 # Set the number of sf_bufs to allocate. sf_bufs are virtual buffers
2675 # for sendfile(2) that are used to map file VM pages, and normally
2676 # default to a quantity that is roughly 16*MAXUSERS+512. You would
2677 # typically want about 4 of these for each simultaneous file send.
2679 options NSFBUFS=1024
2682 # Enable extra debugging code for locks. This stores the filename and
2683 # line of whatever acquired the lock in the lock itself, and changes a
2684 # number of function calls to pass around the relevant data. This is
2685 # not at all useful unless you are debugging lock code. Note that
2686 # modules should be recompiled as this option modifies KBI.
2691 #####################################################################
2703 # General USB code (mandatory for USB)
2706 # USB Double Bulk Pipe devices
2710 # USB temperature meter
2714 # Human Interface Device (anything with buttons and dials)
2720 # USB mass storage driver (Requires scbus and da)
2722 # USB mass storage driver for device-side mode
2724 # USB support for Belkin F5U109 and Magic Control Technology serial adapters
2733 # eGalax USB touch screen
2735 # Diamond Rio 500 MP3 player
2738 # USB serial support
2740 # USB support for 3G modem cards by Option, Novatel, Huawei and Sierra
2742 # USB support for Technologies ARK3116 based serial adapters
2744 # USB support for Belkin F5U103 and compatible serial adapters
2746 # USB support for serial adapters based on the FT8U100AX and FT8U232AM
2748 # USB support for some Windows CE based serial communication.
2750 # USB support for Prolific PL-2303 serial adapters
2752 # USB support for Silicon Laboratories CP2101/CP2102 based USB serial adapters
2754 # USB Visor and Palm devices
2756 # USB serial support for DDI pocket's PHS
2759 # USB ethernet support
2761 # ADMtek USB ethernet. Supports the LinkSys USB100TX,
2762 # the Billionton USB100, the Melco LU-ATX, the D-Link DSB-650TX
2763 # and the SMC 2202USB. Also works with the ADMtek AN986 Pegasus
2767 # ASIX Electronics AX88172 USB 2.0 ethernet driver. Used in the
2768 # LinkSys USB200M and various other adapters.
2770 # ASIX Electronics AX88178A/AX88179 USB 2.0/3.0 gigabit ethernet driver.
2774 # Devices which communicate using Ethernet over USB, particularly
2775 # Communication Device Class (CDC) Ethernet specification. Supports
2776 # Sharp Zaurus PDAs, some DOCSIS cable modems and so on.
2779 # CATC USB-EL1201A USB ethernet. Supports the CATC Netmate
2780 # and Netmate II, and the Belkin F5U111.
2783 # Kawasaki LSI ethernet. Supports the LinkSys USB10T,
2784 # Entrega USB-NET-E45, Peracom Ethernet Adapter, the
2785 # 3Com 3c19250, the ADS Technologies USB-10BT, the ATen UC10T,
2786 # the Netgear EA101, the D-Link DSB-650, the SMC 2102USB
2787 # and 2104USB, and the Corega USB-T.
2790 # RealTek RTL8150 USB to fast ethernet. Supports the Melco LUA-KTX
2791 # and the GREEN HOUSE GH-USB100B.
2794 # Davicom DM9601E USB to fast ethernet. Supports the Corega FEther USB-TXC.
2797 # RealTek RTL8152 USB to fast ethernet.
2800 # Moschip MCS7730/MCS7840 USB to fast ethernet. Supports the Sitecom LN030.
2803 # HSxPA devices from Option N.V
2806 # Realtek RTL8188SU/RTL8191SU/RTL8192SU wireless driver
2809 # Ralink Technology RT2501USB/RT2601USB wireless driver
2811 # Ralink Technology RT2700U/RT2800U/RT3000U wireless driver
2814 # Atheros AR5523 wireless driver
2817 # Conexant/Intersil PrismGT wireless driver
2820 # Ralink Technology RT2500USB wireless driver
2823 # RNDIS USB ethernet driver
2825 # Realtek RTL8187B/L wireless driver
2828 # ZyDas ZD1211/ZD1211B wireless driver
2831 # Sierra USB wireless driver
2835 # debugging options for the USB subsystem
2841 options UKBD_DFLT_KEYMAP # specify the built-in keymap
2842 makeoptions UKBD_DFLT_KEYMAP=jp.pc98
2844 # options for uplcom:
2845 options UPLCOM_INTR_INTERVAL=100 # interrupt pipe interval
2848 # options for uvscom:
2849 options UVSCOM_DEFAULT_OPKTSIZE=8 # default output packet size
2850 options UVSCOM_INTR_INTERVAL=100 # interrupt pipe interval
2853 #####################################################################
2856 device firewire # FireWire bus code
2857 device sbp # SCSI over Firewire (Requires scbus and da)
2858 device sbp_targ # SBP-2 Target mode (Requires scbus and targ)
2859 device fwe # Ethernet over FireWire (non-standard!)
2860 device fwip # IP over FireWire (RFC2734 and RFC3146)
2862 #####################################################################
2863 # dcons support (Dumb Console Device)
2865 device dcons # dumb console driver
2866 device dcons_crom # FireWire attachment
2867 options DCONS_BUF_SIZE=16384 # buffer size
2868 options DCONS_POLL_HZ=100 # polling rate
2869 options DCONS_FORCE_CONSOLE=0 # force to be the primary console
2870 options DCONS_FORCE_GDB=1 # force to be the gdb device
2872 #####################################################################
2875 # This is a port of the OpenBSD crypto framework. Include this when
2876 # configuring IPSEC and when you have a h/w crypto device to accelerate
2877 # user applications that link to OpenSSL.
2879 # Drivers are ports from OpenBSD with some simple enhancements that have
2880 # been fed back to OpenBSD.
2882 device crypto # core crypto support
2884 # Only install the cryptodev device if you are running tests, or know
2885 # specifically why you need it. In most cases, it is not needed and
2886 # will make things slower.
2887 device cryptodev # /dev/crypto for access to h/w
2889 device rndtest # FIPS 140-2 entropy tester
2891 device ccr # Chelsio T6
2893 device hifn # Hifn 7951, 7781, etc.
2894 options HIFN_DEBUG # enable debugging support: hw.hifn.debug
2895 options HIFN_RNDTEST # enable rndtest support
2897 device ubsec # Broadcom 5501, 5601, 58xx
2898 options UBSEC_DEBUG # enable debugging support: hw.ubsec.debug
2899 options UBSEC_RNDTEST # enable rndtest support
2901 #####################################################################
2905 # Embedded system options:
2907 # An embedded system might want to run something other than init.
2908 options INIT_PATH=/sbin/init:/rescue/init
2911 options BUS_DEBUG # enable newbus debugging
2912 options DEBUG_VFS_LOCKS # enable VFS lock debugging
2913 options SOCKBUF_DEBUG # enable sockbuf last record/mb tail checking
2914 options IFMEDIA_DEBUG # enable debugging in net/if_media.c
2919 # Make the SYSINIT process performed by mi_startup() verbose. This is very
2920 # useful when porting to a new architecture. If DDB is also enabled, this
2921 # will print function names instead of addresses. If defined with a value
2922 # of zero, the verbose code is compiled-in but disabled by default, and can
2923 # be enabled with the debug.verbose_sysinit=1 tunable.
2924 options VERBOSE_SYSINIT
2926 #####################################################################
2927 # SYSV IPC KERNEL PARAMETERS
2929 # Maximum number of System V semaphores that can be used on the system at
2933 # Total number of semaphores system wide
2936 # Total number of undo structures in system
2939 # Maximum number of System V semaphores that can be used by a single process
2943 # Maximum number of operations that can be outstanding on a single System V
2944 # semaphore at one time.
2947 # Maximum number of undo operations that can be outstanding on a single
2948 # System V semaphore at one time.
2951 # Maximum number of shared memory pages system wide.
2954 # Maximum size, in bytes, of a single System V shared memory region.
2955 options SHMMAX=(SHMMAXPGS*PAGE_SIZE+1)
2956 options SHMMAXPGS=1025
2958 # Minimum size, in bytes, of a single System V shared memory region.
2961 # Maximum number of shared memory regions that can be used on the system
2965 # Maximum number of System V shared memory regions that can be attached to
2966 # a single process at one time.
2969 # Set the amount of time (in seconds) the system will wait before
2970 # rebooting automatically when a kernel panic occurs. If set to (-1),
2971 # the system will wait indefinitely until a key is pressed on the
2973 options PANIC_REBOOT_WAIT_TIME=16
2975 # Attempt to bypass the buffer cache and put data directly into the
2976 # userland buffer for read operation when O_DIRECT flag is set on the
2977 # file. Both offset and length of the read operation must be
2978 # multiples of the physical media sector size.
2982 # Specify a lower limit for the number of swap I/O buffers. They are
2983 # (among other things) used when bypassing the buffer cache due to
2984 # DIRECTIO kernel option enabled and O_DIRECT flag set on file.
2986 options NSWBUF_MIN=120
2988 #####################################################################
2990 # More undocumented options for linting.
2991 # Note that documenting these is not considered an affront.
2993 options CAM_DEBUG_DELAY
2995 # VFS cluster debugging.
2996 options CLUSTERDEBUG
3000 # Kernel filelock debugging.
3003 # System V compatible message queues
3004 # Please note that the values provided here are used to test kernel
3005 # building. The defaults in the sources provide almost the same numbers.
3006 # MSGSSZ must be a power of 2 between 8 and 1024.
3007 options MSGMNB=2049 # Max number of chars in queue
3008 options MSGMNI=41 # Max number of message queue identifiers
3009 options MSGSEG=2049 # Max number of message segments
3010 options MSGSSZ=16 # Size of a message segment
3011 options MSGTQL=41 # Max number of messages in system
3013 options NBUF=512 # Number of buffer headers
3015 options SCSI_NCR_DEBUG
3016 options SCSI_NCR_MAX_SYNC=10000
3017 options SCSI_NCR_MAX_WIDE=1
3018 options SCSI_NCR_MYADDR=7
3020 options SC_DEBUG_LEVEL=5 # Syscons debug level
3021 options SC_RENDER_DEBUG # syscons rendering debugging
3023 options VFS_BIO_DEBUG # VFS buffer I/O debugging
3025 options KSTACK_MAX_PAGES=32 # Maximum pages to give the kernel stack
3026 options KSTACK_USAGE_PROF
3028 # Adaptec Array Controller driver options
3029 options AAC_DEBUG # Debugging levels:
3030 # 0 - quiet, only emit warnings
3031 # 1 - noisy, emit major function
3032 # points and things done
3033 # 2 - extremely noisy, emit trace
3034 # items in loops, etc.
3036 # Resource Accounting
3042 # Yet more undocumented options for linting.
3043 # BKTR_ALLOC_PAGES has no effect except to cause warnings, and
3044 # BROOKTREE_ALLOC_PAGES hasn't actually been superseded by it, since the
3045 # driver still mostly spells this option BROOKTREE_ALLOC_PAGES.
3046 ##options BKTR_ALLOC_PAGES=(217*4+1)
3047 options BROOKTREE_ALLOC_PAGES=(217*4+1)
3048 options MAXFILES=999
3050 # Random number generator
3051 # Only ONE of the below two may be used; they are mutually exclusive.
3052 # If neither is present, then the Fortuna algorithm is selected.
3053 #options RANDOM_YARROW # Yarrow CSPRNG (old default)
3054 #options RANDOM_LOADABLE # Allow the algorithm to be loaded as
3056 # Select this to allow high-rate but potentially expensive
3057 # harvesting of Slab-Allocator entropy. In very high-rate
3058 # situations the value of doing this is dubious at best.
3059 options RANDOM_ENABLE_UMA # slab allocator
3061 # Module to enable execution of application via emulators like QEMU
3062 options IMAGACT_BINMISC
3064 # Intel em(4) driver
3065 options EM_MULTIQUEUE # Activate multiqueue features/disable MSI-X
3067 # zlib I/O stream support
3068 # This enables support for compressed core dumps.
3072 options BHND_LOGLEVEL # Logging threshold level
3075 device evdev # input event device support
3076 options EVDEV_SUPPORT # evdev support in legacy drivers
3077 options EVDEV_DEBUG # enable event debug msgs
3078 device uinput # install /dev/uinput cdev
3079 options UINPUT_DEBUG # enable uinput debug msgs
3081 # Serial Peripheral Interface (SPI) support.
3082 device spibus # Bus support.
3083 device at45d # DataFlash driver
3084 device mx25l # SPIFlash driver
3085 device spigen # Generic access to SPI devices from userland.
3086 # Enable legacy /dev/spigenN name aliases for /dev/spigenX.Y devices.
3087 options SPIGEN_LEGACY_CDEVNAME # legacy device names for spigen
3089 device xz # xz_embedded LZMA de-compression library