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.
54 # The `makeoptions' parameter allows variables to be passed to the
55 # generated Makefile in the build area.
57 # CONF_CFLAGS gives some extra compiler flags that are added to ${CFLAGS}
58 # after most other flags. Here we use it to inhibit use of non-optimal
59 # gcc builtin functions (e.g., memcmp).
61 # DEBUG happens to be magic.
62 # The following is equivalent to 'config -g KERNELNAME' and creates
63 # 'kernel.debug' compiled with -g debugging as well as a normal
64 # 'kernel'. Use 'make install.debug' to install the debug kernel
65 # but that isn't normally necessary as the debug symbols are not loaded
66 # by the kernel and are not useful there anyway.
68 # KERNEL can be overridden so that you can change the default name of your
71 # MODULES_OVERRIDE can be used to limit modules built to a specific list.
73 makeoptions CONF_CFLAGS=-fno-builtin #Don't allow use of memcmp, etc.
74 #makeoptions DEBUG=-g #Build kernel with gdb(1) debug symbols
75 #makeoptions KERNEL=foo #Build kernel "foo" and install "/foo"
76 # Only build ext2fs module plus those parts of the sound system I need.
77 #makeoptions MODULES_OVERRIDE="ext2fs sound/sound sound/driver/maestro3"
78 makeoptions DESTDIR=/tmp
81 # FreeBSD processes are subject to certain limits to their consumption
82 # of system resources. See getrlimit(2) for more details. Each
83 # resource limit has two values, a "soft" limit and a "hard" limit.
84 # The soft limits can be modified during normal system operation, but
85 # the hard limits are set at boot time. Their default values are
86 # in sys/<arch>/include/vmparam.h. There are two ways to change them:
88 # 1. Set the values at kernel build time. The options below are one
89 # way to allow that limit to grow to 1GB. They can be increased
90 # further by changing the parameters:
92 # 2. In /boot/loader.conf, set the tunables kern.maxswzone,
93 # kern.maxbcache, kern.maxtsiz, kern.dfldsiz, kern.maxdsiz,
94 # kern.dflssiz, kern.maxssiz and kern.sgrowsiz.
96 # The options in /boot/loader.conf override anything in the kernel
97 # configuration file. See the function init_param1 in
98 # sys/kern/subr_param.c for more details.
101 options MAXDSIZ=(1024UL*1024*1024)
102 options MAXSSIZ=(128UL*1024*1024)
103 options DFLDSIZ=(1024UL*1024*1024)
106 # BLKDEV_IOSIZE sets the default block size used in user block
107 # device I/O. Note that this value will be overridden by the label
108 # when specifying a block device from a label with a non-0
109 # partition blocksize. The default is PAGE_SIZE.
111 options BLKDEV_IOSIZE=8192
113 # Options for the VM subsystem
114 # Deprecated options supported for backwards compatibility
115 #options PQ_NOOPT # No coloring
117 # This allows you to actually store this configuration file into
118 # the kernel binary itself, where it may be later read by saying:
119 # strings -n 3 /boot/kernel/kernel | sed -n 's/^___//p' > MYKERNEL
121 options INCLUDE_CONFIG_FILE # Include this file in kernel
123 options GEOM_AES # Don't use, use GEOM_BDE
124 options GEOM_APPLE # Apple partitioning
125 options GEOM_BDE # Disk encryption.
126 options GEOM_BSD # BSD disklabels
127 options GEOM_CONCAT # Disk concatenation.
128 options GEOM_ELI # Disk encryption.
129 options GEOM_FOX # Redundant path mitigation
130 options GEOM_GATE # Userland services.
131 options GEOM_GPT # GPT partitioning
132 options GEOM_LABEL # Providers labelization.
133 options GEOM_MBR # DOS/MBR partitioning
134 options GEOM_MIRROR # Disk mirroring.
135 options GEOM_NOP # Test class.
136 options GEOM_PC98 # NEC PC9800 partitioning
137 options GEOM_RAID3 # RAID3 functionality.
138 options GEOM_SHSEC # Shared secret.
139 options GEOM_STRIPE # Disk striping.
140 options GEOM_SUNLABEL # Sun/Solaris partitioning
141 options GEOM_UZIP # Read-only compressed disks
142 options GEOM_VOL # Volume names from UFS superblock
143 options GEOM_ZERO # Peformance testing helper.
146 # The root device and filesystem type can be compiled in;
147 # this provides a fallback option if the root device cannot
148 # be correctly guessed by the bootstrap code, or an override if
149 # the RB_DFLTROOT flag (-r) is specified when booting the kernel.
151 options ROOTDEVNAME=\"ufs:da0s2e\"
154 #####################################################################
157 # Specifying one of SCHED_4BSD or SCHED_ULE is mandatory. These options
158 # select which scheduler is compiled in.
160 # SCHED_4BSD is the historical, proven, BSD scheduler. It has a global run
161 # queue and no cpu affinity which makes it suboptimal for SMP. It has very
162 # good interactivity and priority selection.
164 # SCHED_ULE is a new scheduler that has been designed for SMP and has some
165 # advantages for UP as well. It is intended to replace the 4BSD scheduler
172 #####################################################################
175 # SMP enables building of a Symmetric MultiProcessor Kernel.
178 options SMP # Symmetric MultiProcessor Kernel
180 # ADAPTIVE_MUTEXES changes the behavior of blocking mutexes to spin
181 # if the thread that currently owns the mutex is executing on another
182 # CPU. This behaviour is enabled by default, so this option can be used
184 options NO_ADAPTIVE_MUTEXES
186 # ADAPTIVE_GIANT causes the Giant lock to also be made adaptive when
187 # running without NO_ADAPTIVE_MUTEXES. Normally, because Giant is assumed
188 # to be held for extended periods, contention on Giant will cause a thread
189 # to sleep rather than spinning.
190 options ADAPTIVE_GIANT
192 # MUTEX_NOINLINE forces mutex operations to call functions to perform each
193 # operation rather than inlining the simple cases. This can be used to
194 # shrink the size of the kernel text segment. Note that this behavior is
195 # already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, MUTEX_PROFILING,
196 # and WITNESS options.
197 options MUTEX_NOINLINE
199 # MUTEX_WAKE_ALL changes the mutex unlock algorithm to wake all waiters
200 # when a contested mutex is released rather than just awaking the highest
202 options MUTEX_WAKE_ALL
204 # RWLOCK_NOINLINE forces rwlock operations to call functions to perform each
205 # operation rather than inlining the simple cases. This can be used to
206 # shrink the size of the kernel text segment. Note that this behavior is
207 # already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, MUTEX_PROFILING,
208 # and WITNESS options.
209 options RWLOCK_NOINLINE
211 # SMP Debugging Options:
213 # PREEMPTION allows the threads that are in the kernel to be preempted
214 # by higher priority threads. It helps with interactivity and
215 # allows interrupt threads to run sooner rather than waiting.
216 # WARNING! Only tested on amd64 and i386.
217 # FULL_PREEMPTION instructs the kernel to preempt non-realtime kernel
218 # threads. Its sole use is to expose race conditions and other
219 # bugs during development. Enabling this option will reduce
220 # performance and increase the frequency of kernel panics by
221 # design. If you aren't sure that you need it then you don't.
222 # Relies on the PREEMPTION option. DON'T TURN THIS ON.
223 # MUTEX_DEBUG enables various extra assertions in the mutex code.
224 # SLEEPQUEUE_PROFILING enables rudimentary profiling of the hash table
225 # used to hold active sleep queues.
226 # TURNSTILE_PROFILING enables rudimentary profiling of the hash table
227 # used to hold active lock queues.
228 # WITNESS enables the witness code which detects deadlocks and cycles
229 # during locking operations.
230 # WITNESS_KDB causes the witness code to drop into the kernel debugger if
231 # a lock hierarchy violation occurs or if locks are held when going to
233 # WITNESS_SKIPSPIN disables the witness checks on spin mutexes.
235 options FULL_PREEMPTION
239 options WITNESS_SKIPSPIN
241 # MUTEX_PROFILING - Profiling mutual exclusion locks (mutexes). See
242 # MUTEX_PROFILING(9) for details.
243 options MUTEX_PROFILING
244 # Set the number of buffers and the hash size. The hash size MUST be larger
245 # than the number of buffers. Hash size should be prime.
246 options MPROF_BUFFERS="1536"
247 options MPROF_HASH_SIZE="1543"
249 # Profiling for internal hash tables.
250 options SLEEPQUEUE_PROFILING
251 options TURNSTILE_PROFILING
254 #####################################################################
255 # COMPATIBILITY OPTIONS
258 # Implement system calls compatible with 4.3BSD and older versions of
259 # FreeBSD. You probably do NOT want to remove this as much current code
260 # still relies on the 4.3 emulation. Note that some architectures that
261 # are supported by FreeBSD do not include support for certain important
262 # aspects of this compatibility option, namely those related to the
263 # signal delivery mechanism.
270 # Enable FreeBSD4 compatibility syscalls
271 options COMPAT_FREEBSD4
273 # Enable FreeBSD5 compatibility syscalls
274 options COMPAT_FREEBSD5
277 # These three options provide support for System V Interface
278 # Definition-style interprocess communication, in the form of shared
279 # memory, semaphores, and message queues, respectively.
286 #####################################################################
290 # Compile with kernel debugger related code.
295 # Print a stack trace of the current thread on the console for a panic.
300 # Don't enter the debugger for a panic. Intended for unattended operation
301 # where you may want to enter the debugger from the console, but still want
302 # the machine to recover from a panic.
304 options KDB_UNATTENDED
307 # Enable the ddb debugger backend.
312 # Print the numerical value of symbols in addition to the symbolic
318 # Enable the remote gdb debugger backend.
323 # SYSCTL_DEBUG enables a 'sysctl' debug tree that can be used to dump the
324 # contents of the registered sysctl nodes on the console. It is disabled by
325 # default because it generates excessively verbose consol output that can
326 # interfere with serial console operation.
331 # DEBUG_MEMGUARD builds and enables memguard(9), a replacement allocator
332 # for the kernel used to detect modify-after-free scenarios. See the
333 # memguard(9) man page for more information on usage.
335 options DEBUG_MEMGUARD
338 # DEBUG_REDZONE enables buffer underflows and buffer overflows detection for
341 options DEBUG_REDZONE
344 # KTRACE enables the system-call tracing facility ktrace(2). To be more
345 # SMP-friendly, KTRACE uses a worker thread to process most trace events
346 # asynchronously to the thread generating the event. This requires a
347 # pre-allocated store of objects representing trace events. The
348 # KTRACE_REQUEST_POOL option specifies the initial size of this store.
349 # The size of the pool can be adjusted both at boottime and runtime via
350 # the kern.ktrace_request_pool tunable and sysctl.
352 options KTRACE #kernel tracing
353 options KTRACE_REQUEST_POOL=101
356 # KTR is a kernel tracing mechanism imported from BSD/OS. Currently
357 # it has no userland interface aside from a few sysctl's. It is
358 # enabled with the KTR option. KTR_ENTRIES defines the number of
359 # entries in the circular trace buffer; it must be a power of two.
360 # KTR_COMPILE defines the mask of events to compile into the kernel as
361 # defined by the KTR_* constants in <sys/ktr.h>. KTR_MASK defines the
362 # initial value of the ktr_mask variable which determines at runtime
363 # what events to trace. KTR_CPUMASK determines which CPU's log
364 # events, with bit X corresponding to cpu X. KTR_VERBOSE enables
365 # dumping of KTR events to the console by default. This functionality
366 # can be toggled via the debug.ktr_verbose sysctl and defaults to off
367 # if KTR_VERBOSE is not defined.
370 options KTR_ENTRIES=1024
371 options KTR_COMPILE=(KTR_INTR|KTR_PROC)
372 options KTR_MASK=KTR_INTR
373 options KTR_CPUMASK=0x3
377 # ALQ(9) is a facilty for the asynchronous queuing of records from the kernel
378 # to a vnode, and is employed by services such as KTR(4) to produce trace
379 # files based on a kernel event stream. Records are written asynchronously
380 # in a worker thread.
386 # The INVARIANTS option is used in a number of source files to enable
387 # extra sanity checking of internal structures. This support is not
388 # enabled by default because of the extra time it would take to check
389 # for these conditions, which can only occur as a result of
390 # programming errors.
395 # The INVARIANT_SUPPORT option makes us compile in support for
396 # verifying some of the internal structures. It is a prerequisite for
397 # 'INVARIANTS', as enabling 'INVARIANTS' will make these functions be
398 # called. The intent is that you can set 'INVARIANTS' for single
399 # source files (by changing the source file or specifying it on the
400 # command line) if you have 'INVARIANT_SUPPORT' enabled. Also, if you
401 # wish to build a kernel module with 'INVARIANTS', then adding
402 # 'INVARIANT_SUPPORT' to your kernel will provide all the necessary
403 # infrastructure without the added overhead.
405 options INVARIANT_SUPPORT
408 # The DIAGNOSTIC option is used to enable extra debugging information
409 # from some parts of the kernel. As this makes everything more noisy,
410 # it is disabled by default.
415 # REGRESSION causes optional kernel interfaces necessary only for regression
416 # testing to be enabled. These interfaces may constitute security risks
417 # when enabled, as they permit processes to easily modify aspects of the
418 # run-time environment to reproduce unlikely or unusual (possibly normally
419 # impossible) scenarios.
424 # RESTARTABLE_PANICS allows one to continue from a panic as if it were
425 # a call to the debugger to continue from a panic as instead. It is only
426 # useful if a kernel debugger is present. To restart from a panic, reset
427 # the panicstr variable to NULL and continue execution. This option is
428 # for development use only and should NOT be used in production systems
429 # to "workaround" a panic.
431 #options RESTARTABLE_PANICS
434 # This option let some drivers co-exist that can't co-exist in a running
435 # system. This is used to be able to compile all kernel code in one go for
436 # quality assurance purposes (like this file, which the option takes it name
439 options COMPILING_LINT
442 #####################################################################
443 # PERFORMANCE MONITORING OPTIONS
446 # The hwpmc driver that allows the use of in-CPU performance monitoring
447 # counters for performance monitoring. The base kernel needs to configured
448 # with the 'options' line, while the hwpmc device can be either compiled
449 # in or loaded as a loadable kernel module.
451 # Additional configuration options may be required on specific architectures,
452 # please see hwpmc(4).
454 device hwpmc # Driver (also a loadable module)
455 options HWPMC_HOOKS # Other necessary kernel hooks
458 #####################################################################
463 # Only the INET (Internet) family is officially supported in FreeBSD.
465 options INET #Internet communications protocols
466 options INET6 #IPv6 communications protocols
467 options IPSEC #IP security
468 options IPSEC_ESP #IP security (crypto; define w/ IPSEC)
469 options IPSEC_DEBUG #debug for IP security
471 # Set IPSEC_FILTERGIF to force packets coming through a gif tunnel
472 # to be processed by any configured packet filtering (ipfw, ipf).
473 # The default is that packets coming from a tunnel are _not_ processed;
474 # they are assumed trusted.
476 # IPSEC history is preserved for such packets, and can be filtered
477 # using ipfw(8)'s 'ipsec' keyword, when this option is enabled.
479 #options IPSEC_FILTERGIF #filter ipsec packets from a tunnel
481 #options FAST_IPSEC #new IPsec (cannot define w/ IPSEC)
483 options IPX #IPX/SPX communications protocols
484 options IPXIP #IPX in IP encapsulation (not available)
486 options NCP #NetWare Core protocol
488 options NETATALK #Appletalk communications protocols
489 options NETATALKDEBUG #Appletalk debugging
493 # NETSMB enables support for SMB protocol, it requires LIBMCHAIN and LIBICONV
495 options NETSMB #SMB/CIFS requester
497 # mchain library. It can be either loaded as KLD or compiled into kernel
500 # libalias library, performing NAT
503 # altq(9). Enable the base part of the hooks with the ALTQ option.
504 # Individual disciplines must be built into the base system and can not be
505 # loaded as modules at this point. ALTQ requires a stable TSC so if yours is
506 # broken or changes with CPU throttling then you must also have the ALTQ_NOPCC
509 options ALTQ_CBQ # Class Bases Queueing
510 options ALTQ_RED # Random Early Detection
511 options ALTQ_RIO # RED In/Out
512 options ALTQ_HFSC # Hierarchical Packet Scheduler
513 options ALTQ_CDNR # Traffic conditioner
514 options ALTQ_PRIQ # Priority Queueing
515 options ALTQ_NOPCC # Required if the TSC is unusable
518 # netgraph(4). Enable the base netgraph code with the NETGRAPH option.
519 # Individual node types can be enabled with the corresponding option
520 # listed below; however, this is not strictly necessary as netgraph
521 # will automatically load the corresponding KLD module if the node type
522 # is not already compiled into the kernel. Each type below has a
523 # corresponding man page, e.g., ng_async(8).
524 options NETGRAPH # netgraph(4) system
525 options NETGRAPH_DEBUG # enable extra debugging, this
526 # affects netgraph(4) and nodes
528 options NETGRAPH_ASYNC
529 options NETGRAPH_ATMLLC
530 options NETGRAPH_ATM_ATMPIF
531 options NETGRAPH_BLUETOOTH # ng_bluetooth(4)
532 options NETGRAPH_BLUETOOTH_BT3C # ng_bt3c(4)
533 options NETGRAPH_BLUETOOTH_H4 # ng_h4(4)
534 options NETGRAPH_BLUETOOTH_HCI # ng_hci(4)
535 options NETGRAPH_BLUETOOTH_L2CAP # ng_l2cap(4)
536 options NETGRAPH_BLUETOOTH_SOCKET # ng_btsocket(4)
537 options NETGRAPH_BLUETOOTH_UBT # ng_ubt(4)
538 options NETGRAPH_BLUETOOTH_UBTBCMFW # ubtbcmfw(4)
540 options NETGRAPH_BRIDGE
541 options NETGRAPH_CISCO
542 options NETGRAPH_DEVICE
543 options NETGRAPH_ECHO
544 options NETGRAPH_EIFACE
545 options NETGRAPH_ETHER
547 options NETGRAPH_FRAME_RELAY
549 options NETGRAPH_GIF_DEMUX
550 options NETGRAPH_HOLE
551 options NETGRAPH_IFACE
552 options NETGRAPH_IP_INPUT
553 options NETGRAPH_IPFW
554 options NETGRAPH_KSOCKET
555 options NETGRAPH_L2TP
557 # MPPC compression requires proprietary files (not included)
558 #options NETGRAPH_MPPC_COMPRESSION
559 options NETGRAPH_MPPC_ENCRYPTION
560 options NETGRAPH_NETFLOW
562 options NETGRAPH_ONE2MANY
564 options NETGRAPH_PPPOE
565 options NETGRAPH_PPTPGRE
566 options NETGRAPH_RFC1490
567 options NETGRAPH_SOCKET
568 options NETGRAPH_SPLIT
569 options NETGRAPH_SPPP
570 options NETGRAPH_TCPMSS
576 # NgATM - Netgraph ATM
578 options NGATM_ATMBASE
584 device mn # Munich32x/Falc54 Nx64kbit/sec cards.
587 # Network interfaces:
588 # The `loop' device is MANDATORY when networking is enabled.
589 # The `ether' device provides generic code to handle
590 # Ethernets; it is MANDATORY when an Ethernet device driver is
591 # configured or token-ring is enabled.
592 # The `vlan' device implements the VLAN tagging of Ethernet frames
593 # according to IEEE 802.1Q. It requires `device miibus'.
594 # The `wlan' device provides generic code to support 802.11
595 # drivers, including host AP mode; it is MANDATORY for the wi,
596 # ath, and awi drivers and will eventually be required by all 802.11 drivers.
597 # The `wlan_wep', `wlan_tkip', and `wlan_ccmp' devices provide
598 # support for WEP, TKIP, and AES-CCMP crypto protocols optionally
599 # used with 802.11 devices that depend on the `wlan' module.
600 # The `wlan_xauth' device provides support for external (i.e. user-mode)
601 # authenticators for use with 802.11 drivers that use the `wlan'
602 # module and support 802.1x and/or WPA security protocols.
603 # The `wlan_acl' device provides a MAC-based access control mechanism
604 # for use with 802.11 drivers operating in ap mode and using the
606 # The `fddi' device provides generic code to support FDDI.
607 # The `arcnet' device provides generic code to support Arcnet.
608 # The `sppp' device serves a similar role for certain types
609 # of synchronous PPP links (like `cx', `ar').
610 # The `sl' device implements the Serial Line IP (SLIP) service.
611 # The `ppp' device implements the Point-to-Point Protocol.
612 # The `bpf' device enables the Berkeley Packet Filter. Be
613 # aware of the legal and administrative consequences of enabling this
614 # option. The number of devices determines the maximum number of
615 # simultaneous BPF clients programs runnable. DHCP requires bpf.
616 # The `disc' device implements a minimal network interface,
617 # which throws away all packets sent and never receives any. It is
618 # included for testing purposes. This shows up as the `ds' interface.
619 # The `tap' device is a pty-like virtual Ethernet interface
620 # The `tun' device implements (user-)ppp and nos-tun
621 # The `gif' device implements IPv6 over IP4 tunneling,
622 # IPv4 over IPv6 tunneling, IPv4 over IPv4 tunneling and
623 # IPv6 over IPv6 tunneling.
624 # The `gre' device implements two types of IP4 over IP4 tunneling:
625 # GRE and MOBILE, as specified in the RFC1701 and RFC2004.
626 # The XBONEHACK option allows the same pair of addresses to be configured on
627 # multiple gif interfaces.
628 # The `faith' device captures packets sent to it and diverts them
629 # to the IPv4/IPv6 translation daemon.
630 # The `stf' device implements 6to4 encapsulation.
631 # The `ef' device provides support for multiple ethernet frame types
632 # specified via ETHER_* options. See ef(4) for details.
634 # The pf packet filter consists of three devices:
635 # The `pf' device provides /dev/pf and the firewall code itself.
636 # The `pflog' device provides the pflog0 interface which logs packets.
637 # The `pfsync' device provides the pfsync0 interface used for
638 # synchronization of firewall state tables (over the net).
640 # The PPP_BSDCOMP option enables support for compress(1) style entire
641 # packet compression, the PPP_DEFLATE is for zlib/gzip style compression.
642 # PPP_FILTER enables code for filtering the ppp data stream and selecting
643 # events for resetting the demand dial activity timer - requires bpf.
644 # See pppd(8) for more details.
646 device ether #Generic Ethernet
647 device vlan #VLAN support (needs miibus)
648 device wlan #802.11 support
649 device wlan_wep #802.11 WEP support
650 device wlan_ccmp #802.11 CCMP support
651 device wlan_tkip #802.11 TKIP support
652 device wlan_xauth #802.11 external authenticator support
653 device wlan_acl #802.11 MAC ACL support
654 device token #Generic TokenRing
655 device fddi #Generic FDDI
656 device arcnet #Generic Arcnet
657 device sppp #Generic Synchronous PPP
658 device loop #Network loopback device
659 device bpf #Berkeley packet filter
660 device disc #Discard device (ds0, ds1, etc)
661 device tap #Virtual Ethernet driver
662 device tun #Tunnel driver (ppp(8), nos-tun(8))
663 device sl #Serial Line IP
664 device gre #IP over IP tunneling
665 device if_bridge #Bridge interface
666 device pf #PF OpenBSD packet-filter firewall
667 device pflog #logging support interface for PF
668 device pfsync #synchronization interface for PF
669 device carp #Common Address Redundancy Protocol
670 device ppp #Point-to-point protocol
671 options PPP_BSDCOMP #PPP BSD-compress support
672 options PPP_DEFLATE #PPP zlib/deflate/gzip support
673 options PPP_FILTER #enable bpf filtering (needs bpf)
675 device ef # Multiple ethernet frames support
676 options ETHER_II # enable Ethernet_II frame
677 options ETHER_8023 # enable Ethernet_802.3 (Novell) frame
678 options ETHER_8022 # enable Ethernet_802.2 frame
679 options ETHER_SNAP # enable Ethernet_802.2/SNAP frame
682 device gif #IPv6 and IPv4 tunneling
684 device faith #for IPv6 and IPv4 translation
685 device stf #6to4 IPv6 over IPv4 encapsulation
688 # Internet family options:
690 # MROUTING enables the kernel multicast packet forwarder, which works
693 # PIM enables Protocol Independent Multicast in the kernel.
694 # Requires MROUTING enabled.
696 # IPFIREWALL enables support for IP firewall construction, in
697 # conjunction with the `ipfw' program. IPFIREWALL_VERBOSE sends
698 # logged packets to the system logger. IPFIREWALL_VERBOSE_LIMIT
699 # limits the number of times a matching entry can be logged.
701 # WARNING: IPFIREWALL defaults to a policy of "deny ip from any to any"
702 # and if you do not add other rules during startup to allow access,
703 # YOU WILL LOCK YOURSELF OUT. It is suggested that you set firewall_type=open
704 # in /etc/rc.conf when first enabling this feature, then refining the
705 # firewall rules in /etc/rc.firewall after you've tested that the new kernel
706 # feature works properly.
708 # IPFIREWALL_DEFAULT_TO_ACCEPT causes the default rule (at boot) to
709 # allow everything. Use with care, if a cracker can crash your
710 # firewall machine, they can get to your protected machines. However,
711 # if you are using it as an as-needed filter for specific problems as
712 # they arise, then this may be for you. Changing the default to 'allow'
713 # means that you won't get stuck if the kernel and /sbin/ipfw binary get
716 # IPDIVERT enables the divert IP sockets, used by ``ipfw divert''. It
717 # depends on IPFIREWALL if compiled into the kernel.
719 # IPFIREWALL_FORWARD enables changing of the packet destination either
720 # to do some sort of policy routing or transparent proxying. Used by
723 # IPFIREWALL_FORWARD_EXTENDED enables full packet destination changing
724 # including redirecting packets to local IP addresses and ports. All
725 # redirections apply to locally generated packets too. Because of this
726 # great care is required when crafting the ruleset.
728 # IPSTEALTH enables code to support stealth forwarding (i.e., forwarding
729 # packets without touching the ttl). This can be useful to hide firewalls
730 # from traceroute and similar tools.
732 # TCPDEBUG enables code which keeps traces of the TCP state machine
733 # for sockets with the SO_DEBUG option set, which can then be examined
734 # using the trpt(8) utility.
736 options MROUTING # Multicast routing
737 options PIM # Protocol Independent Multicast
738 options IPFIREWALL #firewall
739 options IPFIREWALL_VERBOSE #enable logging to syslogd(8)
740 options IPFIREWALL_VERBOSE_LIMIT=100 #limit verbosity
741 options IPFIREWALL_DEFAULT_TO_ACCEPT #allow everything by default
742 options IPFIREWALL_FORWARD #packet destination changes
743 options IPFIREWALL_FORWARD_EXTENDED #all packet dest changes
744 options IPDIVERT #divert sockets
745 options IPFILTER #ipfilter support
746 options IPFILTER_LOG #ipfilter logging
747 options IPFILTER_LOOKUP #ipfilter pools
748 options IPFILTER_DEFAULT_BLOCK #block all packets by default
749 options IPSTEALTH #support for stealth forwarding
752 # The MBUF_STRESS_TEST option enables options which create
753 # various random failures / extreme cases related to mbuf
754 # functions. See mbuf(9) for a list of available test cases.
755 options MBUF_STRESS_TEST
757 # Statically Link in accept filters
758 options ACCEPT_FILTER_DATA
759 options ACCEPT_FILTER_HTTP
761 # TCP_DROP_SYNFIN adds support for ignoring TCP packets with SYN+FIN. This
762 # prevents nmap et al. from identifying the TCP/IP stack, but breaks support
763 # for RFC1644 extensions and is not recommended for web servers.
765 options TCP_DROP_SYNFIN #drop TCP packets with SYN+FIN
767 # TCP_SIGNATURE adds support for RFC 2385 (TCP-MD5) digests. These are
768 # carried in TCP option 19. This option is commonly used to protect
769 # TCP sessions (e.g. BGP) where IPSEC is not available nor desirable.
770 # This is enabled on a per-socket basis using the TCP_MD5SIG socket option.
771 # This requires the use of 'device crypto', 'options FAST_IPSEC' or 'options
772 # IPSEC', and 'device cryptodev'.
773 #options TCP_SIGNATURE #include support for RFC 2385
775 # DUMMYNET enables the "dummynet" bandwidth limiter. You need IPFIREWALL
776 # as well. See dummynet(4) and ipfw(8) for more info. When you run
777 # DUMMYNET it is advisable to also have "options HZ=1000" to achieve a
778 # smoother scheduling of the traffic.
781 # Zero copy sockets support. This enables "zero copy" for sending and
782 # receiving data via a socket. The send side works for any type of NIC,
783 # the receive side only works for NICs that support MTUs greater than the
784 # page size of your architecture and that support header splitting. See
785 # zero_copy(9) for more details.
786 options ZERO_COPY_SOCKETS
789 # ATM (HARP version) options
791 # ATM_CORE includes the base ATM functionality code. This must be included
794 # ATM_IP includes support for running IP over ATM.
796 # At least one (and usually only one) of the following signalling managers
797 # must be included (note that all signalling managers include PVC support):
798 # ATM_SIGPVC includes support for the PVC-only signalling manager `sigpvc'.
799 # ATM_SPANS includes support for the `spans' signalling manager, which runs
800 # the FORE Systems's proprietary SPANS signalling protocol.
801 # ATM_UNI includes support for the `uni30' and `uni31' signalling managers,
802 # which run the ATM Forum UNI 3.x signalling protocols.
804 # The `hfa' driver provides support for the FORE Systems, Inc.
805 # PCA-200E ATM PCI Adapter.
807 # The `harp' pseudo-driver makes all NATM interface drivers available to HARP.
809 options ATM_CORE #core ATM protocol family
810 options ATM_IP #IP over ATM support
811 options ATM_SIGPVC #SIGPVC signalling manager
812 options ATM_SPANS #SPANS signalling manager
813 options ATM_UNI #UNI signalling manager
815 device hfa #FORE PCA-200E ATM PCI
816 device harp #Pseudo-interface for NATM
819 #####################################################################
823 # Only the root, /usr, and /tmp filesystems need be statically
824 # compiled; everything else will be automatically loaded at mount
825 # time. (Exception: the UFS family--- FFS --- cannot
826 # currently be demand-loaded.) Some people still prefer to statically
827 # compile other filesystems as well.
829 # NB: The NULL, PORTAL, UMAP and UNION filesystems are known to be
830 # buggy, and WILL panic your system if you attempt to do anything with
831 # them. They are included here as an incentive for some enterprising
832 # soul to sit down and fix them.
835 # One of these is mandatory:
836 options FFS #Fast filesystem
837 options NFSCLIENT #Network File System client
839 # The rest are optional:
840 options CD9660 #ISO 9660 filesystem
841 options FDESCFS #File descriptor filesystem
842 options HPFS #OS/2 File system
843 options MSDOSFS #MS DOS File System (FAT, FAT32)
844 options NFSSERVER #Network File System server
845 options NTFS #NT File System
846 options NULLFS #NULL filesystem
847 # Broken (depends on NCP):
848 #options NWFS #NetWare filesystem
849 options PORTALFS #Portal filesystem
850 options PROCFS #Process filesystem (requires PSEUDOFS)
851 options PSEUDOFS #Pseudo-filesystem framework
852 options PSEUDOFS_TRACE #Debugging support for PSEUDOFS
853 options SMBFS #SMB/CIFS filesystem
854 options UDF #Universal Disk Format
855 # Broken (seriously (functionally) broken):
856 #options UMAPFS #UID map filesystem
857 options UNIONFS #Union filesystem
858 # The xFS_ROOT options REQUIRE the associated ``options xFS''
859 options NFS_ROOT #NFS usable as root device
861 # Soft updates is a technique for improving filesystem speed and
862 # making abrupt shutdown less risky.
866 # Extended attributes allow additional data to be associated with files,
867 # and is used for ACLs, Capabilities, and MAC labels.
868 # See src/sys/ufs/ufs/README.extattr for more information.
870 options UFS_EXTATTR_AUTOSTART
872 # Access Control List support for UFS filesystems. The current ACL
873 # implementation requires extended attribute support, UFS_EXTATTR,
874 # for the underlying filesystem.
875 # See src/sys/ufs/ufs/README.acls for more information.
878 # Directory hashing improves the speed of operations on very large
879 # directories at the expense of some memory.
882 # Make space in the kernel for a root filesystem on a md device.
883 # Define to the number of kilobytes to reserve for the filesystem.
884 options MD_ROOT_SIZE=10
886 # Make the md device a potential root device, either with preloaded
887 # images of type mfs_root or md_root.
890 # Disk quotas are supported when this option is enabled.
891 options QUOTA #enable disk quotas
893 # If you are running a machine just as a fileserver for PC and MAC
894 # users, using SAMBA or Netatalk, you may consider setting this option
895 # and keeping all those users' directories on a filesystem that is
896 # mounted with the suiddir option. This gives new files the same
897 # ownership as the directory (similar to group). It's a security hole
898 # if you let these users run programs, so confine it to file-servers
899 # (but it'll save you lots of headaches in those cases). Root owned
900 # directories are exempt and X bits are cleared. The suid bit must be
901 # set on the directory as well; see chmod(1) PC owners can't see/set
902 # ownerships so they keep getting their toes trodden on. This saves
903 # you all the support calls as the filesystem it's used on will act as
904 # they expect: "It's my dir so it must be my file".
908 # The common user and group ID space for the local filesystems
909 # (see PR kern/14584), AKA "poor man's ACLs".
911 # From the systems administration standpoint ACLs are a pain to use:
912 # * they are not supported by the classic file formats like tar and cpio
913 # * they need lots of ugly flags to commands like chown or ls
914 # * they are just by themselves difficult to show in ls
915 # * they promote ad-hoc and messy assignment of permissions
917 # But in fact the classic Unix permissions seem to have only one real problem:
918 # sometimes it's neccessary to give read permissions to one group of
919 # users and read-write permissions to another group of users. But only
920 # one group is supported and that makes a problem. The common ID
921 # support solves this problem without breaking any compatibility.
923 # Controlled by the sysctl:
924 # vfs.commonid.local.enabled: Enable common UID/GID space for local filesystems
925 # vfs.commonid.local.low: Lowest common UID/GID value for local filesystems
926 # vfs.commonid.local.high: Highest common UID/GID value for local filesystems
928 # When enabled, the user and group ID space in the range [low, high]
929 # becomes common. That is, if there is an user with some ID in this range,
930 # there must not be a group with the same ID (except for a special case
931 # described later). Traditionally this kind of overlapping exists in the
932 # low values of system IDs, so the implementation won't allow to set the
933 # low border below 100. If it's set manually below 100, the first time
934 # an access check is done, the system will reset it to 100.
936 # The special case is that for the symbolic group and user names to work
937 # correctly, every time a user is created, a pseudo-group with the same
938 # ID and name must be created. And the other way around - every time
939 # a group is created, a pseudo-user with the same name and ID must be created.
940 # Otherwise command like "ls" won't show the user/group names correctly
941 # and command like "chown" won't understand the symbolic names correctly.
943 # The IDs in the common range can be used interchangeably in both the
944 # user and group fields of file permissions. For example, if you have
945 # groups group1 and group2 with IDs in the common range, you can do:
947 # chown group1:group2 file
948 # This would allow the group1 to write to the file and group2 to read
951 # This semantics works only for the access but not for modification of
952 # the permissions. In the example above the members of group1 aren't allowed
953 # to call chmod on the file. Such changes must be done either by root
954 # or through the pseudo-user group1.
956 # If it's desiable to give the "owner group" of some files (like group1
957 # in this example) the rights to change the permissions of all the files
958 # it owns, it can be achieved through cloning the chmod binary and
959 # adding the pseudo-user setuid rights to it:
960 # cp /bin/chmod /usr/local/bin/group1chmod
961 # chown group1 /usr/local/bin/group1chmod
962 # chmod u=xs,g=,o= /usr/local/bin/group1chmod
963 # A similar thing can be done for chown.
964 # In result all the members of group1 would be able to execute group1chmod,
965 # which would assume the ID of pseudo-user "group1" and will be able
966 # to change the file permissions.
968 # This logic does not work on the remote filesystems (such as NFS).
970 options COMMONID # Enable support for common UID/GID space
973 options NFS_MINATTRTIMO=3 # VREG attrib cache timeout in sec
974 options NFS_MAXATTRTIMO=60
975 options NFS_MINDIRATTRTIMO=30 # VDIR attrib cache timeout in sec
976 options NFS_MAXDIRATTRTIMO=60
977 options NFS_GATHERDELAY=10 # Default write gather delay (msec)
978 options NFS_WDELAYHASHSIZ=16 # and with this
979 options NFS_DEBUG # Enable NFS Debugging
982 options CODA #CODA filesystem.
983 device vcoda #coda minicache <-> venus comm.
984 # Use the old Coda 5.x venus<->kernel interface instead of the new
985 # realms-aware 6.x protocol.
986 #options CODA_COMPAT_5
989 # Add support for the EXT2FS filesystem of Linux fame. Be a bit
990 # careful with this - the ext2fs code has a tendency to lag behind
991 # changes and not be exercised very much, so mounting read/write could
992 # be dangerous (and even mounting read only could result in panics.)
997 # Add support for the ReiserFS filesystem (used in Linux). Currently,
998 # this is limited to read-only access.
1003 # Add support for the SGI XFS filesystem. Currently,
1004 # this is limited to read-only access.
1008 # Use real implementations of the aio_* system calls. There are numerous
1009 # stability and security issues in the current aio code that make it
1010 # unsuitable for inclusion on machines with untrusted local users.
1013 # Cryptographically secure random number generator; /dev/random
1016 # The system memory devices; /dev/mem, /dev/kmem
1019 # Optional character code conversion support with LIBICONV.
1020 # Each option requires their base file system and LIBICONV.
1021 options CD9660_ICONV
1022 options MSDOSFS_ICONV
1026 # Experimental support for large MS-DOS filesystems.
1028 # WARNING: This uses at least 32 bytes of kernel memory (which is not
1029 # reclaimed until the FS is unmounted) for each file on disk to map
1030 # between the 32-bit inode numbers used by VFS and the 64-bit pseudo-inode
1031 # numbers used internally by msdosfs. This is only safe to use in certain
1032 # controlled situations (e.g. read-only FS with less than 1 million files).
1033 # Since the mappings do not persist across unmounts (or reboots), these
1034 # filesystems are not suitable for exporting through NFS, or any other
1035 # application that requires fixed inode numbers.
1036 options MSDOSFS_LARGE
1039 #####################################################################
1042 # Real time extensions added in the 1993 Posix
1043 # _KPOSIX_PRIORITY_SCHEDULING: Build in _POSIX_PRIORITY_SCHEDULING
1045 options _KPOSIX_PRIORITY_SCHEDULING
1046 # p1003_1b_semaphores are very experimental,
1047 # user should be ready to assist in debugging if problems arise.
1048 options P1003_1B_SEMAPHORES
1050 # POSIX message queue
1051 options P1003_1B_MQUEUE
1053 #####################################################################
1054 # SECURITY POLICY PARAMETERS
1056 # Support for BSM audit
1059 # Support for Mandatory Access Control (MAC):
1062 options MAC_BSDEXTENDED
1068 options MAC_PARTITION
1070 options MAC_SEEOTHERUIDS
1075 #####################################################################
1078 # The granularity of operation is controlled by the kernel option HZ whose
1079 # default value (100) means a granularity of 10ms (1s/HZ).
1080 # Some subsystems, such as DUMMYNET, might benefit from a smaller
1081 # granularity such as 1ms or less, for a smoother scheduling of packets.
1082 # Consider, however, that reducing the granularity too much might
1083 # cause excessive overhead in clock interrupt processing,
1084 # potentially causing ticks to be missed and thus actually reducing
1085 # the accuracy of operation.
1089 # Enable support for the kernel PLL to use an external PPS signal,
1090 # under supervision of [x]ntpd(8)
1091 # More info in ntpd documentation: http://www.eecis.udel.edu/~ntp
1096 #####################################################################
1099 # SCSI DEVICE CONFIGURATION
1101 # The SCSI subsystem consists of the `base' SCSI code, a number of
1102 # high-level SCSI device `type' drivers, and the low-level host-adapter
1103 # device drivers. The host adapters are listed in the ISA and PCI
1104 # device configuration sections below.
1106 # It is possible to wire down your SCSI devices so that a given bus,
1107 # target, and LUN always come on line as the same device unit. In
1108 # earlier versions the unit numbers were assigned in the order that
1109 # the devices were probed on the SCSI bus. This means that if you
1110 # removed a disk drive, you may have had to rewrite your /etc/fstab
1111 # file, and also that you had to be careful when adding a new disk
1112 # as it may have been probed earlier and moved your device configuration
1113 # around. (See also option GEOM_VOL for a different solution to this
1116 # This old behavior is maintained as the default behavior. The unit
1117 # assignment begins with the first non-wired down unit for a device
1118 # type. For example, if you wire a disk as "da3" then the first
1119 # non-wired disk will be assigned da4.
1121 # The syntax for wiring down devices is:
1123 hint.scbus.0.at="ahc0"
1124 hint.scbus.1.at="ahc1"
1125 hint.scbus.1.bus="0"
1126 hint.scbus.3.at="ahc2"
1127 hint.scbus.3.bus="0"
1128 hint.scbus.2.at="ahc2"
1129 hint.scbus.2.bus="1"
1130 hint.da.0.at="scbus0"
1131 hint.da.0.target="0"
1133 hint.da.1.at="scbus3"
1134 hint.da.1.target="1"
1135 hint.da.2.at="scbus2"
1136 hint.da.2.target="3"
1137 hint.sa.1.at="scbus1"
1138 hint.sa.1.target="6"
1140 # "units" (SCSI logical unit number) that are not specified are
1141 # treated as if specified as LUN 0.
1143 # All SCSI devices allocate as many units as are required.
1145 # The ch driver drives SCSI Media Changer ("jukebox") devices.
1147 # The da driver drives SCSI Direct Access ("disk") and Optical Media
1150 # The sa driver drives SCSI Sequential Access ("tape") devices.
1152 # The cd driver drives SCSI Read Only Direct Access ("cd") devices.
1154 # The ses driver drives SCSI Environment Services ("ses") and
1155 # SAF-TE ("SCSI Accessible Fault-Tolerant Enclosure") devices.
1157 # The pt driver drives SCSI Processor devices.
1160 # Target Mode support is provided here but also requires that a SIM
1161 # (SCSI Host Adapter Driver) provide support as well.
1163 # The targ driver provides target mode support as a Processor type device.
1164 # It exists to give the minimal context necessary to respond to Inquiry
1165 # commands. There is a sample user application that shows how the rest
1166 # of the command support might be done in /usr/share/examples/scsi_target.
1168 # The targbh driver provides target mode support and exists to respond
1169 # to incoming commands that do not otherwise have a logical unit assigned
1172 # The "unknown" device (uk? in pre-2.0.5) is now part of the base SCSI
1173 # configuration as the "pass" driver.
1175 device scbus #base SCSI code
1176 device ch #SCSI media changers
1177 device da #SCSI direct access devices (aka disks)
1178 device sa #SCSI tapes
1179 device cd #SCSI CD-ROMs
1180 device ses #SCSI Environmental Services (and SAF-TE)
1181 device pt #SCSI processor
1182 device targ #SCSI Target Mode Code
1183 device targbh #SCSI Target Mode Blackhole Device
1184 device pass #CAM passthrough driver
1187 # debugging options:
1188 # -- NOTE -- If you specify one of the bus/target/lun options, you must
1190 # CAMDEBUG: When defined enables debugging macros
1191 # CAM_DEBUG_BUS: Debug the given bus. Use -1 to debug all busses.
1192 # CAM_DEBUG_TARGET: Debug the given target. Use -1 to debug all targets.
1193 # CAM_DEBUG_LUN: Debug the given lun. Use -1 to debug all luns.
1194 # CAM_DEBUG_FLAGS: OR together CAM_DEBUG_INFO, CAM_DEBUG_TRACE,
1195 # CAM_DEBUG_SUBTRACE, and CAM_DEBUG_CDB
1197 # CAM_MAX_HIGHPOWER: Maximum number of concurrent high power (start unit) cmds
1198 # CAM_NEW_TRAN_CODE: this is the new transport layer code that will be switched
1200 # SCSI_NO_SENSE_STRINGS: When defined disables sense descriptions
1201 # SCSI_NO_OP_STRINGS: When defined disables opcode descriptions
1202 # SCSI_DELAY: The number of MILLISECONDS to freeze the SIM (scsi adapter)
1203 # queue after a bus reset, and the number of milliseconds to
1204 # freeze the device queue after a bus device reset. This
1205 # can be changed at boot and runtime with the
1206 # kern.cam.scsi_delay tunable/sysctl.
1208 options CAM_DEBUG_BUS=-1
1209 options CAM_DEBUG_TARGET=-1
1210 options CAM_DEBUG_LUN=-1
1211 options CAM_DEBUG_FLAGS=(CAM_DEBUG_INFO|CAM_DEBUG_TRACE|CAM_DEBUG_CDB)
1212 options CAM_MAX_HIGHPOWER=4
1213 options SCSI_NO_SENSE_STRINGS
1214 options SCSI_NO_OP_STRINGS
1215 options SCSI_DELAY=5000 # Be pessimistic about Joe SCSI device
1217 # Options for the CAM CDROM driver:
1218 # CHANGER_MIN_BUSY_SECONDS: Guaranteed minimum time quantum for a changer LUN
1219 # CHANGER_MAX_BUSY_SECONDS: Maximum time quantum per changer LUN, only
1220 # enforced if there is I/O waiting for another LUN
1221 # The compiled in defaults for these variables are 2 and 10 seconds,
1224 # These can also be changed on the fly with the following sysctl variables:
1225 # kern.cam.cd.changer.min_busy_seconds
1226 # kern.cam.cd.changer.max_busy_seconds
1228 options CHANGER_MIN_BUSY_SECONDS=2
1229 options CHANGER_MAX_BUSY_SECONDS=10
1231 # Options for the CAM sequential access driver:
1232 # SA_IO_TIMEOUT: Timeout for read/write/wfm operations, in minutes
1233 # SA_SPACE_TIMEOUT: Timeout for space operations, in minutes
1234 # SA_REWIND_TIMEOUT: Timeout for rewind operations, in minutes
1235 # SA_ERASE_TIMEOUT: Timeout for erase operations, in minutes
1236 # SA_1FM_AT_EOD: Default to model which only has a default one filemark at EOT.
1237 options SA_IO_TIMEOUT=4
1238 options SA_SPACE_TIMEOUT=60
1239 options SA_REWIND_TIMEOUT=(2*60)
1240 options SA_ERASE_TIMEOUT=(4*60)
1241 options SA_1FM_AT_EOD
1243 # Optional timeout for the CAM processor target (pt) device
1244 # This is specified in seconds. The default is 60 seconds.
1245 options SCSI_PT_DEFAULT_TIMEOUT=60
1247 # Optional enable of doing SES passthrough on other devices (e.g., disks)
1249 # Normally disabled because a lot of newer SCSI disks report themselves
1250 # as having SES capabilities, but this can then clot up attempts to build
1251 # build a topology with the SES device that's on the box these drives
1253 options SES_ENABLE_PASSTHROUGH
1256 #####################################################################
1257 # MISCELLANEOUS DEVICES AND OPTIONS
1259 # The `pty' device usually turns out to be ``effectively mandatory'',
1260 # as it is required for `telnetd', `rlogind', `screen', `emacs', and
1261 # `xterm', among others.
1263 device pty #Pseudo ttys
1264 device nmdm #back-to-back tty devices
1265 device md #Memory/malloc disk
1266 device snp #Snoop device - to look at pty/vty/etc..
1267 device ccd #Concatenated disk driver
1268 device firmware #firmware(9) support
1270 # Kernel side iconv library
1273 # Size of the kernel message buffer. Should be N * pagesize.
1274 options MSGBUF_SIZE=40960
1276 # Maximum size of a tty or pty input buffer.
1280 #####################################################################
1281 # HARDWARE DEVICE CONFIGURATION
1283 # For ISA the required hints are listed.
1284 # EISA, MCA, PCI and pccard are self identifying buses, so no hints
1288 # Mandatory devices:
1291 # The keyboard controller; it controls the keyboard and the PS/2 mouse.
1293 hint.atkbdc.0.at="isa"
1294 hint.atkbdc.0.port="0x060"
1298 hint.atkbd.0.at="atkbdc"
1299 hint.atkbd.0.irq="1"
1301 # Options for atkbd:
1302 options ATKBD_DFLT_KEYMAP # specify the built-in keymap
1303 makeoptions ATKBD_DFLT_KEYMAP=jp.106
1305 # These options are valid for other keyboard drivers as well.
1306 options KBD_DISABLE_KEYMAP_LOAD # refuse to load a keymap
1307 options KBD_INSTALL_CDEV # install a CDEV entry in /dev
1309 # `flags' for atkbd:
1310 # 0x01 Force detection of keyboard, else we always assume a keyboard
1311 # 0x02 Don't reset keyboard, useful for some newer ThinkPads
1312 # 0x03 Force detection and avoid reset, might help with certain
1314 # 0x04 Old-style (XT) keyboard support, useful for older ThinkPads
1318 hint.psm.0.at="atkbdc"
1322 options PSM_HOOKRESUME #hook the system resume event, useful
1324 options PSM_RESETAFTERSUSPEND #reset the device at the resume event
1326 # Video card driver for VGA adapters.
1331 # Try the following option if the mouse pointer is not drawn correctly
1332 # or font does not seem to be loaded properly. May cause flicker on
1334 options VGA_ALT_SEQACCESS
1336 # If you can dispense with some vga driver features, you may want to
1337 # use the following options to save some memory.
1338 #options VGA_NO_FONT_LOADING # don't save/load font
1339 #options VGA_NO_MODE_CHANGE # don't change video modes
1341 # Older video cards may require this option for proper operation.
1342 options VGA_SLOW_IOACCESS # do byte-wide i/o's to TS and GDC regs
1344 # The following option probably won't work with the LCD displays.
1345 options VGA_WIDTH90 # support 90 column modes
1347 options FB_DEBUG # Frame buffer debugging
1349 device splash # Splash screen and screen saver support
1351 # Various screen savers.
1364 # The syscons console driver (sco color console compatible).
1367 options MAXCONS=16 # number of virtual consoles
1368 options SC_ALT_MOUSE_IMAGE # simplified mouse cursor in text mode
1369 options SC_DFLT_FONT # compile font in
1370 makeoptions SC_DFLT_FONT=cp850
1371 options SC_DISABLE_KDBKEY # disable `debug' key
1372 options SC_DISABLE_REBOOT # disable reboot key sequence
1373 options SC_HISTORY_SIZE=200 # number of history buffer lines
1374 options SC_MOUSE_CHAR=0x3 # char code for text mode mouse cursor
1375 options SC_PIXEL_MODE # add support for the raster text mode
1377 # The following options will let you change the default colors of syscons.
1378 options SC_NORM_ATTR=(FG_GREEN|BG_BLACK)
1379 options SC_NORM_REV_ATTR=(FG_YELLOW|BG_GREEN)
1380 options SC_KERNEL_CONS_ATTR=(FG_RED|BG_BLACK)
1381 options SC_KERNEL_CONS_REV_ATTR=(FG_BLACK|BG_RED)
1383 # The following options will let you change the default behaviour of
1384 # cut-n-paste feature
1385 options SC_CUT_SPACES2TABS # convert leading spaces into tabs
1386 options SC_CUT_SEPCHARS=\"x09\" # set of characters that delimit words
1387 # (default is single space - \"x20\")
1389 # If you have a two button mouse, you may want to add the following option
1390 # to use the right button of the mouse to paste text.
1391 options SC_TWOBUTTON_MOUSE
1393 # You can selectively disable features in syscons.
1394 options SC_NO_CUTPASTE
1395 options SC_NO_FONT_LOADING
1396 options SC_NO_HISTORY
1397 options SC_NO_SYSMOUSE
1398 options SC_NO_SUSPEND_VTYSWITCH
1401 # 0x80 Put the video card in the VESA 800x600 dots, 16 color mode
1402 # 0x100 Probe for a keyboard device periodically if one is not present
1409 # SCSI host adapters:
1411 # adv: All Narrow SCSI bus AdvanSys controllers.
1412 # adw: Second Generation AdvanSys controllers including the ADV940UW.
1413 # aha: Adaptec 154x/1535/1640
1414 # ahb: Adaptec 174x EISA controllers
1415 # ahc: Adaptec 274x/284x/2910/293x/294x/394x/3950x/3960x/398X/4944/
1416 # 19160x/29160x, aic7770/aic78xx
1417 # ahd: Adaptec 29320/39320 Controllers.
1418 # aic: Adaptec 6260/6360, APA-1460 (PC Card), NEC PC9801-100 (C-BUS)
1419 # amd: Support for the AMD 53C974 SCSI host adapter chip as found on devices
1420 # such as the Tekram DC-390(T).
1421 # bt: Most Buslogic controllers: including BT-445, BT-54x, BT-64x, BT-74x,
1422 # BT-75x, BT-946, BT-948, BT-956, BT-958, SDC3211B, SDC3211F, SDC3222F
1423 # esp: NCR53c9x. Only for SBUS hardware right now.
1424 # isp: Qlogic ISP 1020, 1040 and 1040B PCI SCSI host adapters,
1425 # ISP 1240 Dual Ultra SCSI, ISP 1080 and 1280 (Dual) Ultra2,
1426 # ISP 12160 Ultra3 SCSI,
1427 # Qlogic ISP 2100 and ISP 2200 1Gb Fibre Channel host adapters.
1428 # Qlogic ISP 2300 and ISP 2312 2Gb Fibre Channel host adapters.
1429 # Qlogic ISP 2322 and ISP 6322 2Gb Fibre Channel host adapters.
1430 # ispfw: Firmware module for Qlogic host adapters
1431 # mpt: LSI-Logic MPT/Fusion 53c1020 or 53c1030 Ultra4
1432 # or FC9x9 Fibre Channel host adapters.
1433 # ncr: NCR 53C810, 53C825 self-contained SCSI host adapters.
1434 # sym: Symbios/Logic 53C8XX family of PCI-SCSI I/O processors:
1435 # 53C810, 53C810A, 53C815, 53C825, 53C825A, 53C860, 53C875,
1436 # 53C876, 53C885, 53C895, 53C895A, 53C896, 53C897, 53C1510D,
1437 # 53C1010-33, 53C1010-66.
1438 # trm: Tekram DC395U/UW/F DC315U adapters.
1442 # Note that the order is important in order for Buslogic ISA/EISA cards to be
1447 hint.bt.0.port="0x330"
1461 hint.isp.0.disable="1"
1463 hint.isp.0.prefer_iomap="1"
1464 hint.isp.0.prefer_memmap="1"
1465 hint.isp.0.fwload_disable="1"
1466 hint.isp.0.ignore_nvram="1"
1467 hint.isp.0.fullduplex="1"
1468 hint.isp.0.topology="lport"
1469 hint.isp.0.topology="nport"
1470 hint.isp.0.topology="lport-only"
1471 hint.isp.0.topology="nport-only"
1472 # we can't get u_int64_t types, nor can we get strings if it's got
1473 # a leading 0x, hence this silly dodge.
1474 hint.isp.0.portwnn="w50000000aaaa0000"
1475 hint.isp.0.nodewnn="w50000000aaaa0001"
1483 hint.wds.0.port="0x350"
1487 # The aic7xxx driver will attempt to use memory mapped I/O for all PCI
1488 # controllers that have it configured only if this option is set. Unfortunately,
1489 # this doesn't work on some motherboards, which prevents it from being the
1491 options AHC_ALLOW_MEMIO
1493 # Dump the contents of the ahc controller configuration PROM.
1494 options AHC_DUMP_EEPROM
1496 # Bitmap of units to enable targetmode operations.
1497 options AHC_TMODE_ENABLE
1499 # Compile in Aic7xxx Debugging code.
1502 # Aic7xxx driver debugging options. See sys/dev/aic7xxx/aic7xxx.h
1503 options AHC_DEBUG_OPTS
1505 # Print register bitfields in debug output. Adds ~128k to driver
1507 options AHC_REG_PRETTY_PRINT
1509 # Compile in aic79xx debugging code.
1512 # Aic79xx driver debugging options. Adds ~215k to driver. See ahd(4).
1513 options AHD_DEBUG_OPTS=0xFFFFFFFF
1515 # Print human-readable register definitions when debugging
1516 options AHD_REG_PRETTY_PRINT
1518 # Bitmap of units to enable targetmode operations.
1519 options AHD_TMODE_ENABLE
1521 # The adw driver will attempt to use memory mapped I/O for all PCI
1522 # controllers that have it configured only if this option is set.
1523 options ADW_ALLOW_MEMIO
1525 # Options used in dev/isp/ (Qlogic SCSI/FC driver).
1527 # ISP_TARGET_MODE - enable target mode operation
1529 options ISP_TARGET_MODE=1
1531 # ISP_DEFAULT_ROLES - default role (none, target, init, both)
1533 options ISP_DEFAULT_ROLES=3
1535 # Options used in dev/sym/ (Symbios SCSI driver).
1536 #options SYM_SETUP_LP_PROBE_MAP #-Low Priority Probe Map (bits)
1537 # Allows the ncr to take precedence
1538 # 1 (1<<0) -> 810a, 860
1539 # 2 (1<<1) -> 825a, 875, 885, 895
1540 # 4 (1<<2) -> 895a, 896, 1510d
1541 #options SYM_SETUP_SCSI_DIFF #-HVD support for 825a, 875, 885
1542 # disabled:0 (default), enabled:1
1543 #options SYM_SETUP_PCI_PARITY #-PCI parity checking
1544 # disabled:0, enabled:1 (default)
1545 #options SYM_SETUP_MAX_LUN #-Number of LUNs supported
1546 # default:8, range:[1..64]
1548 # The 'dpt' driver provides support for old DPT controllers (http://www.dpt.com/).
1549 # These have hardware RAID-{0,1,5} support, and do multi-initiator I/O.
1550 # The DPT controllers are commonly re-licensed under other brand-names -
1551 # some controllers by Olivetti, Dec, HP, AT&T, SNI, AST, Alphatronic, NEC and
1552 # Compaq are actually DPT controllers.
1554 # See src/sys/dev/dpt for debugging and other subtle options.
1555 # DPT_MEASURE_PERFORMANCE Enables a set of (semi)invasive metrics. Various
1556 # instruments are enabled. The tools in
1557 # /usr/sbin/dpt_* assume these to be enabled.
1558 # DPT_HANDLE_TIMEOUTS Normally device timeouts are handled by the DPT.
1559 # If you ant the driver to handle timeouts, enable
1560 # this option. If your system is very busy, this
1561 # option will create more trouble than solve.
1562 # DPT_TIMEOUT_FACTOR Used to compute the excessive amount of time to
1563 # wait when timing out with the above option.
1564 # DPT_DEBUG_xxxx These are controllable from sys/dev/dpt/dpt.h
1565 # DPT_LOST_IRQ When enabled, will try, once per second, to catch
1566 # any interrupt that got lost. Seems to help in some
1567 # DPT-firmware/Motherboard combinations. Minimal
1568 # cost, great benefit.
1569 # DPT_RESET_HBA Make "reset" actually reset the controller
1570 # instead of fudging it. Only enable this if you
1571 # are 100% certain you need it.
1576 #!CAM# options DPT_MEASURE_PERFORMANCE
1577 #!CAM# options DPT_HANDLE_TIMEOUTS
1578 options DPT_TIMEOUT_FACTOR=4
1579 options DPT_LOST_IRQ
1580 options DPT_RESET_HBA
1583 # Compaq "CISS" RAID controllers (SmartRAID 5* series)
1584 # These controllers have a SCSI-like interface, and require the
1585 # CAM infrastructure.
1590 # Intel Integrated RAID controllers.
1591 # This driver was developed and is maintained by Intel. Contacts
1592 # at Intel for this driver are
1593 # "Kannanthanam, Boji T" <boji.t.kannanthanam@intel.com> and
1594 # "Leubner, Achim" <achim.leubner@intel.com>.
1599 # Mylex AcceleRAID and eXtremeRAID controllers with v6 and later
1600 # firmware. These controllers have a SCSI-like interface, and require
1601 # the CAM infrastructure.
1606 # Compaq Smart RAID, Mylex DAC960 and AMI MegaRAID controllers. Only
1607 # one entry is needed; the code will find and configure all supported
1610 device ida # Compaq Smart RAID
1611 device mlx # Mylex DAC960
1612 device amr # AMI MegaRAID
1613 device mfi # LSI MegaRAID SAS
1618 device twe # 3ware ATA RAID
1621 # The 'ATA' driver supports all ATA and ATAPI devices, including PC Card
1622 # devices. You only need one "device ata" for it to find all
1623 # PCI and PC Card ATA/ATAPI devices on modern machines.
1625 device atadisk # ATA disk drives
1626 device ataraid # ATA RAID drives
1627 device atapicd # ATAPI CDROM drives
1628 device atapifd # ATAPI floppy drives
1629 device atapist # ATAPI tape drives
1630 device atapicam # emulate ATAPI devices as SCSI ditto via CAM
1631 # needs CAM to be present (scbus & pass)
1633 # For older non-PCI, non-PnPBIOS systems, these are the hints lines to add:
1635 hint.ata.0.port="0x1f0"
1638 hint.ata.1.port="0x170"
1642 # The following options are valid on the ATA driver:
1644 # ATA_STATIC_ID: controller numbering is static ie depends on location
1645 # else the device numbers are dynamically allocated.
1647 options ATA_STATIC_ID
1650 # Standard floppy disk controllers and floppy tapes, supports
1651 # the Y-E DATA External FDD (PC Card)
1655 hint.fdc.0.port="0x3F0"
1659 # FDC_DEBUG enables floppy debugging. Since the debug output is huge, you
1660 # gotta turn it actually on by setting the variable fd_debug with DDB,
1664 # Activate this line if you happen to have an Insight floppy tape.
1665 # Probing them proved to be dangerous for people with floppy disks only,
1666 # so it's "hidden" behind a flag:
1667 #hint.fdc.0.flags="1"
1669 # Specify floppy devices
1676 # sio: serial ports (see sio(4)), including support for various
1677 # PC Card devices, such as Modem and NICs (see etc/defaults/pccard.conf)
1681 hint.sio.0.port="0x3F8"
1682 hint.sio.0.flags="0x10"
1686 options COM_ESP # Code for Hayes ESP.
1687 options COM_MULTIPORT # Code for some cards with shared IRQs.
1688 options CONSPEED=115200 # Speed for serial console
1691 # `flags' specific to sio(4). See below for flags used by both sio(4) and
1693 # 0x20 force this unit to be the console (unless there is another
1694 # higher priority console). This replaces the COMCONSOLE option.
1695 # 0x40 reserve this unit for low level console operations. Do not
1696 # access the device in any normal way.
1698 # 0x1 disable probing of this device. Used to prevent your modem
1699 # from being attached as a PnP modem.
1700 # Other flags for sio that aren't documented in the man page.
1701 # 0x20000 enable hardware RTS/CTS and larger FIFOs. Only works for
1702 # ST16650A-compatible UARTs.
1705 # uart: newbusified driver for serial interfaces. It consolidates the sio(4),
1706 # sab(4) and zs(4) drivers.
1710 # Options for uart(4)
1711 options UART_PPS_ON_CTS # Do time pulse capturing using CTS
1714 # The following hint should only be used for pure ISA devices. It is not
1715 # needed otherwise. Use of hints is strongly discouraged.
1716 hint.uart.0.at="isa"
1718 # The following 3 hints are used when the UART is a system device (i.e., a
1719 # console or debug port), but only on platforms that don't have any other
1720 # means to pass the information to the kernel. The unit number of the hint
1721 # is only used to bundle the hints together. There is no relation to the
1722 # unit number of the probed UART.
1723 hint.uart.0.port="0x3f8"
1724 hint.uart.0.flags="0x10"
1725 hint.uart.0.baud="115200"
1727 # `flags' for serial drivers that support consoles like sio(4) and uart(4):
1728 # 0x10 enable console support for this unit. Other console flags
1729 # (if applicable) are ignored unless this is set. Enabling
1730 # console support does not make the unit the preferred console.
1731 # Boot with -h or set boot_serial=YES in the loader. For sio(4)
1732 # specifically, the 0x20 flag can also be set (see above).
1733 # Currently, at most one unit can have console support; the
1734 # first one (in config file order) with this flag set is
1735 # preferred. Setting this flag for sio0 gives the old behaviour.
1736 # 0x80 use this port for serial line gdb support in ddb. Also known
1740 # Options for serial drivers that support consoles:
1741 options BREAK_TO_DEBUGGER # A BREAK on a serial console goes to
1742 # ddb, if available.
1744 # Solaris implements a new BREAK which is initiated by a character
1745 # sequence CR ~ ^b which is similar to a familiar pattern used on
1746 # Sun servers by the Remote Console.
1747 options ALT_BREAK_TO_DEBUGGER
1749 # Serial Communications Controller
1750 # Supports the Siemens SAB 82532 and Zilog Z8530 multi-channel
1751 # communications controllers.
1754 # PCI Universal Communications driver
1755 # Supports various multi port PCI I/O cards.
1759 # Network interfaces:
1761 # MII bus support is required for some PCI 10/100 ethernet NICs,
1762 # namely those which use MII-compliant transceivers or implement
1763 # transceiver control interfaces that operate like an MII. Adding
1764 # "device miibus0" to the kernel config pulls in support for
1765 # the generic miibus API and all of the PHY drivers, including a
1766 # generic one for PHYs that aren't specifically handled by an
1767 # individual driver.
1770 # an: Aironet 4500/4800 802.11 wireless adapters. Supports the PCMCIA,
1771 # PCI and ISA varieties.
1772 # awi: Support for IEEE 802.11 PC Card devices using the AMD Am79C930 and
1773 # Harris (Intersil) Chipset with PCnetMobile firmware by AMD.
1774 # bce: Broadcom NetXtreme II (BCM5706/BCM5708) PCI/PCIe Gigabit Ethernet
1776 # bfe: Broadcom BCM4401 Ethernet adapter.
1777 # bge: Support for gigabit ethernet adapters based on the Broadcom
1778 # BCM570x family of controllers, including the 3Com 3c996-T,
1779 # the Netgear GA302T, the SysKonnect SK-9D21 and SK-9D41, and
1780 # the embedded gigE NICs on Dell PowerEdge 2550 servers.
1781 # cm: Arcnet SMC COM90c26 / SMC COM90c56
1782 # (and SMC COM90c66 in '56 compatibility mode) adapters.
1783 # cnw: Xircom CNW/Netware Airsurfer PC Card adapter
1784 # dc: Support for PCI fast ethernet adapters based on the DEC/Intel 21143
1785 # and various workalikes including:
1786 # the ADMtek AL981 Comet and AN985 Centaur, the ASIX Electronics
1787 # AX88140A and AX88141, the Davicom DM9100 and DM9102, the Lite-On
1788 # 82c168 and 82c169 PNIC, the Lite-On/Macronix LC82C115 PNIC II
1789 # and the Macronix 98713/98713A/98715/98715A/98725 PMAC. This driver
1790 # replaces the old al, ax, dm, pn and mx drivers. List of brands:
1791 # Digital DE500-BA, Kingston KNE100TX, D-Link DFE-570TX, SOHOware SFA110,
1792 # SVEC PN102-TX, CNet Pro110B, 120A, and 120B, Compex RL100-TX,
1793 # LinkSys LNE100TX, LNE100TX V2.0, Jaton XpressNet, Alfa Inc GFC2204,
1795 # de: Digital Equipment DC21040
1796 # em: Intel Pro/1000 Gigabit Ethernet 82542, 82543, 82544 based adapters.
1797 # ep: 3Com 3C509, 3C529, 3C556, 3C562D, 3C563D, 3C572, 3C574X, 3C579, 3C589
1798 # and PC Card devices using these chipsets.
1799 # ex: Intel EtherExpress Pro/10 and other i82595-based adapters,
1800 # Olicom Ethernet PC Card devices.
1801 # fe: Fujitsu MB86960A/MB86965A Ethernet
1802 # fea: DEC DEFEA EISA FDDI adapter
1803 # fpa: Support for the Digital DEFPA PCI FDDI. `device fddi' is also needed.
1804 # fxp: Intel EtherExpress Pro/100B
1805 # (hint of prefer_iomap can be done to prefer I/O instead of Mem mapping)
1806 # hme: Sun HME (Happy Meal Ethernet)
1807 # le: AMD Am7900 LANCE and Am79C9xx PCnet
1808 # lge: Support for PCI gigabit ethernet adapters based on the Level 1
1809 # LXT1001 NetCellerator chipset. This includes the D-Link DGE-500SX,
1810 # SMC TigerCard 1000 (SMC9462SX), and some Addtron cards.
1811 # lmc: Support for the LMC/SBE wide-area network interface cards.
1812 # my: Myson Fast Ethernet (MTD80X, MTD89X)
1813 # nge: Support for PCI gigabit ethernet adapters based on the National
1814 # Semiconductor DP83820 and DP83821 chipset. This includes the
1815 # SMC EZ Card 1000 (SMC9462TX), D-Link DGE-500T, Asante FriendlyNet
1816 # GigaNIX 1000TA and 1000TPC, the Addtron AEG320T, the Surecom
1817 # EP-320G-TX and the Netgear GA622T.
1818 # pcn: Support for PCI fast ethernet adapters based on the AMD Am79c97x
1819 # PCnet-FAST, PCnet-FAST+, PCnet-FAST III, PCnet-PRO and PCnet-Home
1820 # chipsets. These can also be handled by the le(4) driver if the
1821 # pcn(4) driver is left out of the kernel. The le(4) driver does not
1822 # support the additional features like the MII bus and burst mode of
1823 # the PCnet-FAST and greater chipsets though.
1824 # rl: Support for PCI fast ethernet adapters based on the RealTek 8129/8139
1825 # chipset. Note that the RealTek driver defaults to using programmed
1826 # I/O to do register accesses because memory mapped mode seems to cause
1827 # severe lockups on SMP hardware. This driver also supports the
1828 # Accton EN1207D `Cheetah' adapter, which uses a chip called
1829 # the MPX 5030/5038, which is either a RealTek in disguise or a
1830 # RealTek workalike. Note that the D-Link DFE-530TX+ uses the RealTek
1831 # chipset and is supported by this driver, not the 'vr' driver.
1832 # sf: Support for Adaptec Duralink PCI fast ethernet adapters based on the
1833 # Adaptec AIC-6915 "starfire" controller.
1834 # This includes dual and quad port cards, as well as one 100baseFX card.
1835 # Most of these are 64-bit PCI devices, except for one single port
1836 # card which is 32-bit.
1837 # sis: Support for NICs based on the Silicon Integrated Systems SiS 900,
1838 # SiS 7016 and NS DP83815 PCI fast ethernet controller chips.
1839 # sbsh: Support for Granch SBNI16 SHDSL modem PCI adapters
1840 # sk: Support for the SysKonnect SK-984x series PCI gigabit ethernet NICs.
1841 # This includes the SK-9841 and SK-9842 single port cards (single mode
1842 # and multimode fiber) and the SK-9843 and SK-9844 dual port cards
1843 # (also single mode and multimode).
1844 # The driver will autodetect the number of ports on the card and
1845 # attach each one as a separate network interface.
1846 # sn: Support for ISA and PC Card Ethernet devices using the
1847 # SMC91C90/92/94/95 chips.
1848 # ste: Sundance Technologies ST201 PCI fast ethernet controller, includes
1849 # the D-Link DFE-550TX.
1850 # ti: Support for PCI gigabit ethernet NICs based on the Alteon Networks
1851 # Tigon 1 and Tigon 2 chipsets. This includes the Alteon AceNIC, the
1852 # 3Com 3c985, the Netgear GA620 and various others. Note that you will
1853 # probably want to bump up NMBCLUSTERS a lot to use this driver.
1854 # tl: Support for the Texas Instruments TNETE100 series 'ThunderLAN'
1855 # cards and integrated ethernet controllers. This includes several
1856 # Compaq Netelligent 10/100 cards and the built-in ethernet controllers
1857 # in several Compaq Prosignia, Proliant and Deskpro systems. It also
1858 # supports several Olicom 10Mbps and 10/100 boards.
1859 # tx: SMC 9432 TX, BTX and FTX cards. (SMC EtherPower II series)
1860 # txp: Support for 3Com 3cR990 cards with the "Typhoon" chipset
1861 # vr: Support for various fast ethernet adapters based on the VIA
1862 # Technologies VT3043 `Rhine I' and VT86C100A `Rhine II' chips,
1863 # including the D-Link DFE530TX (see 'rl' for DFE530TX+), the Hawking
1864 # Technologies PN102TX, and the AOpen/Acer ALN-320.
1865 # vx: 3Com 3C590 and 3C595
1866 # wb: Support for fast ethernet adapters based on the Winbond W89C840F chip.
1867 # Note: this is not the same as the Winbond W89C940F, which is a
1869 # wi: Lucent WaveLAN/IEEE 802.11 PCMCIA adapters. Note: this supports both
1870 # the PCMCIA and ISA cards: the ISA card is really a PCMCIA to ISA
1871 # bridge with a PCMCIA adapter plugged into it.
1872 # xe: Xircom/Intel EtherExpress Pro100/16 PC Card ethernet controller,
1873 # Accton Fast EtherCard-16, Compaq Netelligent 10/100 PC Card,
1874 # Toshiba 10/100 Ethernet PC Card, Xircom 16-bit Ethernet + Modem 56
1875 # xl: Support for the 3Com 3c900, 3c905, 3c905B and 3c905C (Fast)
1876 # Etherlink XL cards and integrated controllers. This includes the
1877 # integrated 3c905B-TX chips in certain Dell Optiplex and Dell
1878 # Precision desktop machines and the integrated 3c905-TX chips
1879 # in Dell Latitude laptop docking stations.
1880 # Also supported: 3Com 3c980(C)-TX, 3Com 3cSOHO100-TX, 3Com 3c450-TX
1882 # Order for ISA/EISA devices is important here
1886 hint.cm.0.port="0x2e0"
1888 hint.cm.0.maddr="0xdc000"
1893 hint.fe.0.port="0x300"
1897 hint.sn.0.port="0x300"
1905 # PCI Ethernet NICs that use the common MII bus controller code.
1906 device bce # Broadcom BCM5706/BCM5708 Gigabit Ethernet
1907 device bfe # Broadcom BCM440x 10/100 Ethernet
1908 device bge # Broadcom BCM570xx Gigabit Ethernet
1909 device dc # DEC/Intel 21143 and various workalikes
1910 device fxp # Intel EtherExpress PRO/100B (82557, 82558)
1911 hint.fxp.0.prefer_iomap="0"
1912 device hme # Sun HME (Happy Meal Ethernet)
1913 device lge # Level 1 LXT1001 gigabit Ethernet
1914 device my # Myson Fast Ethernet (MTD80X, MTD89X)
1915 device nge # NatSemi DP83820 gigabit Ethernet
1916 device rl # RealTek 8129/8139
1917 device pcn # AMD Am79C97x PCI 10/100 NICs
1918 device sf # Adaptec AIC-6915 (``Starfire'')
1919 device sbsh # Granch SBNI16 SHDSL modem
1920 device sis # Silicon Integrated Systems SiS 900/SiS 7016
1921 device sk # SysKonnect SK-984x & SK-982x gigabit Ethernet
1922 device ste # Sundance ST201 (D-Link DFE-550TX)
1923 device ti # Alteon Networks Tigon I/II gigabit Ethernet
1924 device tl # Texas Instruments ThunderLAN
1925 device tx # SMC EtherPower II (83c170 ``EPIC'')
1926 device vr # VIA Rhine, Rhine II
1927 device wb # Winbond W89C840F
1928 device xl # 3Com 3c90x (``Boomerang'', ``Cyclone'')
1930 # PCI Ethernet NICs.
1931 device de # DEC/Intel DC21x4x (``Tulip'')
1932 device le # AMD Am7900 LANCE and Am79C9xx PCnet
1933 device txp # 3Com 3cR990 (``Typhoon'')
1934 device vx # 3Com 3c590, 3c595 (``Vortex'')
1942 # Use "private" jumbo buffers allocated exclusively for the ti(4) driver.
1943 # This option is incompatible with the TI_JUMBO_HDRSPLIT option below.
1944 #options TI_PRIVATE_JUMBOS
1945 # Turn on the header splitting option for the ti(4) driver firmware. This
1946 # only works for Tigon II chips, and has no effect for Tigon I chips.
1947 options TI_JUMBO_HDRSPLIT
1949 # These two options allow manipulating the mbuf cluster size and mbuf size,
1950 # respectively. Be very careful with NIC driver modules when changing
1951 # these from their default values, because that can potentially cause a
1952 # mismatch between the mbuf size assumed by the kernel and the mbuf size
1953 # assumed by a module. The only driver that currently has the ability to
1954 # detect a mismatch is ti(4).
1955 options MCLSHIFT=12 # mbuf cluster shift in bits, 12 == 4KB
1956 options MSIZE=512 # mbuf size in bytes
1959 # ATM related options (Cranor version)
1960 # (note: this driver cannot be used with the HARP ATM stack)
1962 # The `en' device provides support for Efficient Networks (ENI)
1963 # ENI-155 PCI midway cards, and the Adaptec 155Mbps PCI ATM cards (ANA-59x0).
1965 # The `hatm' device provides support for Fore/Marconi HE155 and HE622
1968 # The `fatm' device provides support for Fore PCA200E ATM PCI cards.
1970 # The `patm' device provides support for IDT77252 based cards like
1971 # ProSum's ProATM-155 and ProATM-25 and IDT's evaluation boards.
1973 # atm device provides generic atm functions and is required for
1975 # NATM enables the netnatm protocol family that can be used to
1978 # utopia provides the access to the ATM PHY chips and is required for en,
1981 # the current driver supports only PVC operations (no atm-arp, no multicast).
1982 # for more details, please read the original documents at
1983 # http://www.ccrc.wustl.edu/pub/chuck/tech/bsdatm/bsdatm.html
1987 device fatm #Fore PCA200E
1988 device hatm #Fore/Marconi HE155/622
1989 device patm #IDT77252 cards (ProATM and IDT)
1990 device utopia #ATM PHY driver
1991 options NATM #native ATM
1993 options LIBMBPOOL #needed by patm, iatm
1998 # sound: The generic sound driver.
2004 # snd_*: Device-specific drivers.
2006 # The flags of the device tells the device a bit more info about the
2007 # device that normally is obtained through the PnP interface.
2008 # bit 2..0 secondary DMA channel;
2009 # bit 4 set if the board uses two dma channels;
2010 # bit 15..8 board type, overrides autodetection; leave it
2011 # zero if don't know what to put in (and you don't,
2012 # since this is unsupported at the moment...).
2014 # snd_ad1816: Analog Devices AD1816 ISA PnP/non-PnP.
2015 # snd_als4000: Avance Logic ALS4000 PCI.
2016 # snd_atiixp: ATI IXP 200/300/400 PCI.
2017 # snd_au88x0 Aureal Vortex 1/2/Advantage PCI. This driver
2018 # lacks support for playback and recording.
2019 # snd_audiocs: Crystal Semiconductor CS4231 SBus/EBus. Only
2021 # snd_cmi: CMedia CMI8338/CMI8738 PCI.
2022 # snd_cs4281: Crystal Semiconductor CS4281 PCI.
2023 # snd_csa: Crystal Semiconductor CS461x/428x PCI. (except
2025 # snd_ds1: Yamaha DS-1 PCI.
2026 # snd_emu10k1: Creative EMU10K1 PCI and EMU10K2 (Audigy) PCI.
2027 # snd_es137x: Ensoniq AudioPCI ES137x PCI.
2028 # snd_ess: Ensoniq ESS ISA PnP/non-PnP, to be used in
2029 # conjunction with snd_sbc.
2030 # snd_fm801: Forte Media FM801 PCI.
2031 # snd_gusc: Gravis UltraSound ISA PnP/non-PnP.
2032 # snd_ich: Intel ICH PCI and some more audio controllers
2033 # embedded in a chipset, for example nVidia
2034 # nForce controllers.
2035 # snd_maestro: ESS Technology Maestro-1/2x PCI.
2036 # snd_maestro3: ESS Technology Maestro-3/Allegro PCI.
2037 # snd_mss: Microsoft Sound System ISA PnP/non-PnP.
2038 # snd_neomagic: Neomagic 256 AV/ZX PCI.
2039 # snd_sb16: Creative SoundBlaster16, to be used in
2040 # conjuction with snd_sbc.
2041 # snd_sb8: Creative SoundBlaster (pre-16), to be used in
2042 # conjuction with snd_sbc.
2043 # snd_sbc: Creative SoundBlaster ISA PnP/non-PnP.
2044 # Supports ESS and Avance ISA chips as well.
2045 # snd_solo: ESS Solo-1x PCI.
2046 # snd_t4dwave: Trident 4DWave DX/NX PCI, Sis 7018 PCI and Acer Labs
2048 # snd_via8233: VIA VT8233x PCI.
2049 # snd_via82c686: VIA VT82C686A PCI.
2050 # snd_vibes: S3 Sonicvibes PCI.
2051 # snd_uaudio: USB audio.
2078 device snd_via82c686
2082 # For non-pnp sound cards:
2086 hint.pcm.0.flags="0x0"
2088 hint.sbc.0.port="0x220"
2091 hint.sbc.0.flags="0x15"
2092 hint.gusc.0.at="isa"
2093 hint.gusc.0.port="0x220"
2096 hint.gusc.0.flags="0x13"
2099 # IEEE-488 hardware:
2100 # pcii: PCIIA cards (uPD7210 based isa cards)
2101 # tnt4882: National Instruments PCI-GPIB card.
2104 hint.pcii.0.at="isa"
2105 hint.pcii.0.port="0x2e1"
2112 # Miscellaneous hardware:
2114 # scd: Sony CD-ROM using proprietary (non-ATAPI) interface
2115 # mcd: Mitsumi CD-ROM using proprietary (non-ATAPI) interface
2116 # bktr: Brooktree bt848/848a/849a/878/879 video capture and TV Tuner board
2117 # cy: Cyclades serial driver
2118 # joy: joystick (including IO DATA PCJOY PC Card joystick)
2119 # rc: RISCom/8 multiport card
2120 # rp: Comtrol Rocketport(ISA/PCI) - single card
2121 # si: Specialix SI/XIO 4-32 port terminal multiplexor
2122 # nmdm: nullmodem terminal driver (see nmdm(4))
2124 # Notes on the Comtrol Rocketport driver:
2126 # The exact values used for rp0 depend on how many boards you have
2127 # in the system. The manufacturer's sample configs are listed as:
2129 # device rp # core driver support
2131 # Comtrol Rocketport ISA single card
2132 # hint.rp.0.at="isa"
2133 # hint.rp.0.port="0x280"
2135 # If instead you have two ISA cards, one installed at 0x100 and the
2136 # second installed at 0x180, then you should add the following to
2137 # your kernel probe hints:
2138 # hint.rp.0.at="isa"
2139 # hint.rp.0.port="0x100"
2140 # hint.rp.1.at="isa"
2141 # hint.rp.1.port="0x180"
2143 # For 4 ISA cards, it might be something like this:
2144 # hint.rp.0.at="isa"
2145 # hint.rp.0.port="0x180"
2146 # hint.rp.1.at="isa"
2147 # hint.rp.1.port="0x100"
2148 # hint.rp.2.at="isa"
2149 # hint.rp.2.port="0x340"
2150 # hint.rp.3.at="isa"
2151 # hint.rp.3.port="0x240"
2153 # For PCI cards, you need no hints.
2158 hint.mcd.0.port="0x300"
2159 # for the Sony CDU31/33A CDROM
2162 hint.scd.0.port="0x230"
2163 device joy # PnP aware, hints for nonpnp only
2165 hint.joy.0.port="0x201"
2168 hint.rc.0.port="0x220"
2172 hint.rp.0.port="0x280"
2176 hint.si.0.maddr="0xd0000"
2181 # The 'bktr' device is a PCI video capture device using the Brooktree
2182 # bt848/bt848a/bt849a/bt878/bt879 chipset. When used with a TV Tuner it forms a
2183 # TV card, e.g. Miro PC/TV, Hauppauge WinCast/TV WinTV, VideoLogic Captivator,
2184 # Intel Smart Video III, AverMedia, IMS Turbo, FlyVideo.
2186 # options OVERRIDE_CARD=xxx
2187 # options OVERRIDE_TUNER=xxx
2188 # options OVERRIDE_MSP=1
2189 # options OVERRIDE_DBX=1
2190 # These options can be used to override the auto detection
2191 # The current values for xxx are found in src/sys/dev/bktr/bktr_card.h
2192 # Using sysctl(8) run-time overrides on a per-card basis can be made
2194 # options BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_PAL
2196 # options BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_NTSC
2197 # Specifies the default video capture mode.
2198 # This is required for Dual Crystal (28&35Mhz) boards where PAL is used
2199 # to prevent hangs during initialisation, e.g. VideoLogic Captivator PCI.
2201 # options BKTR_USE_PLL
2202 # This is required for PAL or SECAM boards with a 28Mhz crystal and no 35Mhz
2203 # crystal, e.g. some new Bt878 cards.
2205 # options BKTR_GPIO_ACCESS
2206 # This enable IOCTLs which give user level access to the GPIO port.
2208 # options BKTR_NO_MSP_RESET
2209 # Prevents the MSP34xx reset. Good if you initialise the MSP in another OS first
2211 # options BKTR_430_FX_MODE
2212 # Switch Bt878/879 cards into Intel 430FX chipset compatibility mode.
2214 # options BKTR_SIS_VIA_MODE
2215 # Switch Bt878/879 cards into SIS/VIA chipset compatibility mode which is
2216 # needed for some old SiS and VIA chipset motherboards.
2217 # This also allows Bt878/879 chips to work on old OPTi (<1997) chipset
2218 # motherboards and motherboards with bad or incomplete PCI 2.1 support.
2219 # As a rough guess, old = before 1998
2221 # options BKTR_NEW_MSP34XX_DRIVER
2222 # Use new, more complete initialization scheme for the msp34* soundchip.
2223 # Should fix stereo autodetection if the old driver does only output
2227 # options BKTR_USE_FREEBSD_SMBUS
2228 # Compile with FreeBSD SMBus implementation
2230 # Brooktree driver has been ported to the new I2C framework. Thus,
2231 # you'll need to have the following 3 lines in the kernel config.
2236 # The iic and smb devices are only needed if you want to control other
2237 # I2C slaves connected to the external connector of some cards.
2242 # PC Card/PCMCIA and Cardbus
2244 # pccbb: pci/cardbus bridge implementing YENTA interface
2245 # pccard: pccard slots
2246 # cardbus: cardbus slots
2254 # System Management Bus support is provided by the 'smbus' device.
2255 # Access to the SMBus device is via the 'smb' device (/dev/smb*),
2256 # which is a child of the 'smbus' device.
2258 # Supported devices:
2259 # smb standard I/O through /dev/smb*
2261 # Supported SMB interfaces:
2262 # iicsmb I2C to SMB bridge with any iicbus interface
2263 # bktr brooktree848 I2C hardware interface
2264 # intpm Intel PIIX4 (82371AB, 82443MX) Power Management Unit
2265 # alpm Acer Aladdin-IV/V/Pro2 Power Management Unit
2266 # ichsmb Intel ICH SMBus controller chips (82801AA, 82801AB, 82801BA)
2267 # viapm VIA VT82C586B/596B/686A and VT8233 Power Management Unit
2268 # amdpm AMD 756 Power Management Unit
2269 # amdsmb AMD 8111 SMBus 2.0 Controller
2270 # nfpm NVIDIA nForce Power Management Unit
2271 # nfsmb NVIDIA nForce2/3/4 MCP SMBus 2.0 Controller
2273 device smbus # Bus support, required for smb below.
2289 # Philips i2c bus support is provided by the `iicbus' device.
2291 # Supported devices:
2292 # ic i2c network interface
2293 # iic i2c standard io
2294 # iicsmb i2c to smb bridge. Allow i2c i/o with smb commands.
2296 # Supported interfaces:
2297 # bktr brooktree848 I2C software interface
2300 # iicbb generic I2C bit-banging code (needed by lpbb, bktr)
2302 device iicbus # Bus support, required for ic/iic/iicsmb below.
2307 device iicsmb # smb over i2c bridge
2311 # Parallel port bus support is provided by the `ppbus' device.
2312 # Multiple devices may be attached to the parallel port, devices
2313 # are automatically probed and attached when found.
2315 # Supported devices:
2316 # vpo Iomega Zip Drive
2317 # Requires SCSI disk support ('scbus' and 'da'), best
2318 # performance is achieved with ports in EPP 1.9 mode.
2319 # lpt Parallel Printer
2320 # plip Parallel network interface
2321 # ppi General-purpose I/O ("Geek Port") + IEEE1284 I/O
2322 # pps Pulse per second Timing Interface
2323 # lpbb Philips official parallel port I2C bit-banging interface
2325 # Supported interfaces:
2326 # ppc ISA-bus parallel port interfaces.
2329 options PPC_PROBE_CHIPSET # Enable chipset specific detection
2330 # (see flags in ppc(4))
2331 options DEBUG_1284 # IEEE1284 signaling protocol debug
2332 options PERIPH_1284 # Makes your computer act as an IEEE1284
2333 # compliant peripheral
2334 options DONTPROBE_1284 # Avoid boot detection of PnP parallel devices
2335 options VP0_DEBUG # ZIP/ZIP+ debug
2336 options LPT_DEBUG # Printer driver debug
2337 options PPC_DEBUG # Parallel chipset level debug
2338 options PLIP_DEBUG # Parallel network IP interface debug
2339 options PCFCLOCK_VERBOSE # Verbose pcfclock driver
2340 options PCFCLOCK_MAX_RETRIES=5 # Maximum read tries (default 10)
2354 # Kernel BOOTP support
2356 options BOOTP # Use BOOTP to obtain IP address/hostname
2357 # Requires NFSCLIENT and NFS_ROOT
2358 options BOOTP_NFSROOT # NFS mount root filesystem using BOOTP info
2359 options BOOTP_NFSV3 # Use NFS v3 to NFS mount root
2360 options BOOTP_COMPAT # Workaround for broken bootp daemons.
2361 options BOOTP_WIRED_TO=fxp0 # Use interface fxp0 for BOOTP
2364 # Add software watchdog routines.
2369 # Disable swapping of stack pages. This option removes all
2370 # code which actually performs swapping, so it's not possible to turn
2371 # it back on at run-time.
2373 # This is sometimes usable for systems which don't have any swap space
2374 # (see also sysctls "vm.defer_swapspace_pageouts" and
2375 # "vm.disable_swapspace_pageouts")
2377 #options NO_SWAPPING
2379 # Set the number of sf_bufs to allocate. sf_bufs are virtual buffers
2380 # for sendfile(2) that are used to map file VM pages, and normally
2381 # default to a quantity that is roughly 16*MAXUSERS+512. You would
2382 # typically want about 4 of these for each simultaneous file send.
2384 options NSFBUFS=1024
2387 # Enable extra debugging code for locks. This stores the filename and
2388 # line of whatever acquired the lock in the lock itself, and change a
2389 # number of function calls to pass around the relevant data. This is
2390 # not at all useful unless you are debugging lock code. Also note
2391 # that it is likely to break e.g. fstat(1) unless you recompile your
2392 # userland with -DDEBUG_LOCKS as well.
2397 #####################################################################
2407 # General USB code (mandatory for USB)
2410 # USB Double Bulk Pipe devices
2414 # Generic USB device driver
2416 # Human Interface Device (anything with buttons and dials)
2422 # USB Iomega Zip 100 Drive (Requires scbus and da)
2424 # USB support for Belkin F5U109 and Magic Control Technology serial adapters
2430 # Diamond Rio 500 Mp3 player
2435 # USB serial support
2437 # USB support for Belkin F5U103 and compatible serial adapters
2439 # USB support for BWCT console serial adapters
2441 # USB support for serial adapters based on the FT8U100AX and FT8U232AM
2443 # USB support for Prolific PL-2303 serial adapters
2445 # USB Visor and Palm devices
2447 # USB serial support for DDI pocket's PHS
2450 # ADMtek USB ethernet. Supports the LinkSys USB100TX,
2451 # the Billionton USB100, the Melco LU-ATX, the D-Link DSB-650TX
2452 # and the SMC 2202USB. Also works with the ADMtek AN986 Pegasus
2456 # ASIX Electronics AX88172 USB 2.0 ethernet driver. Used in the
2457 # LinkSys USB200M and various other adapters.
2462 # Devices which communicate using Ethernet over USB, particularly
2463 # Communication Device Class (CDC) Ethernet specification. Supports
2464 # Sharp Zaurus PDAs, some DOCSIS cable modems and so on.
2467 # CATC USB-EL1201A USB ethernet. Supports the CATC Netmate
2468 # and Netmate II, and the Belkin F5U111.
2471 # Kawasaki LSI ethernet. Supports the LinkSys USB10T,
2472 # Entrega USB-NET-E45, Peracom Ethernet Adapter, the
2473 # 3Com 3c19250, the ADS Technologies USB-10BT, the ATen UC10T,
2474 # the Netgear EA101, the D-Link DSB-650, the SMC 2102USB
2475 # and 2104USB, and the Corega USB-T.
2478 # RealTek RTL8150 USB to fast ethernet. Supports the Melco LUA-KTX
2479 # and the GREEN HOUSE GH-USB100B.
2482 # Davicom DM9601E USB to fast ethernet. Supports the Corega FEther USB-TXC.
2486 # debugging options for the USB subsystem
2491 options UKBD_DFLT_KEYMAP # specify the built-in keymap
2492 makeoptions UKBD_DFLT_KEYMAP=it.iso
2494 # options for uplcom:
2495 options UPLCOM_INTR_INTERVAL=100 # interrupt pipe interval
2498 # options for uvscom:
2499 options UVSCOM_DEFAULT_OPKTSIZE=8 # default output packet size
2500 options UVSCOM_INTR_INTERVAL=100 # interrupt pipe interval
2503 #####################################################################
2506 device firewire # FireWire bus code
2507 device sbp # SCSI over Firewire (Requires scbus and da)
2508 device sbp_targ # SBP-2 Target mode (Requires scbus and targ)
2509 device fwe # Ethernet over FireWire (non-standard!)
2510 device fwip # IP over FireWire (rfc2734 and rfc3146)
2512 #####################################################################
2513 # dcons support (Dumb Console Device)
2515 device dcons # dumb console driver
2516 device dcons_crom # FireWire attachment
2517 options DCONS_BUF_SIZE=16384 # buffer size
2518 options DCONS_POLL_HZ=100 # polling rate
2519 options DCONS_FORCE_CONSOLE=0 # force to be the primary console
2520 options DCONS_FORCE_GDB=1 # force to be the gdb device
2522 #####################################################################
2525 # This is a port of the openbsd crypto framework. Include this when
2526 # configuring FAST_IPSEC and when you have a h/w crypto device to accelerate
2527 # user applications that link to openssl.
2529 # Drivers are ports from openbsd with some simple enhancements that have
2530 # been fed back to openbsd.
2532 device crypto # core crypto support
2533 device cryptodev # /dev/crypto for access to h/w
2535 device rndtest # FIPS 140-2 entropy tester
2537 device hifn # Hifn 7951, 7781, etc.
2538 options HIFN_DEBUG # enable debugging support: hw.hifn.debug
2539 options HIFN_RNDTEST # enable rndtest support
2541 device ubsec # Broadcom 5501, 5601, 58xx
2542 options UBSEC_DEBUG # enable debugging support: hw.ubsec.debug
2543 options UBSEC_RNDTEST # enable rndtest support
2545 #####################################################################
2549 # Embedded system options:
2551 # An embedded system might want to run something other than init.
2552 options INIT_PATH=/sbin/init:/stand/sysinstall
2555 options BUS_DEBUG # enable newbus debugging
2556 options DEBUG_VFS_LOCKS # enable vfs lock debugging
2557 options SOCKBUF_DEBUG # enable sockbuf last record/mb tail checking
2562 # Make the SYSINIT process performed by mi_startup() verbose. This is very
2563 # useful when porting to a new architecture. If DDB is also enabled, this
2564 # will print function names instead of addresses.
2565 options VERBOSE_SYSINIT
2567 #####################################################################
2568 # SYSV IPC KERNEL PARAMETERS
2570 # Maximum number of entries in a semaphore map.
2573 # Maximum number of System V semaphores that can be used on the system at
2577 # Total number of semaphores system wide
2580 # Total number of undo structures in system
2583 # Maximum number of System V semaphores that can be used by a single process
2587 # Maximum number of operations that can be outstanding on a single System V
2588 # semaphore at one time.
2591 # Maximum number of undo operations that can be outstanding on a single
2592 # System V semaphore at one time.
2595 # Maximum number of shared memory pages system wide.
2598 # Maximum size, in bytes, of a single System V shared memory region.
2599 options SHMMAX=(SHMMAXPGS*PAGE_SIZE+1)
2600 options SHMMAXPGS=1025
2602 # Minimum size, in bytes, of a single System V shared memory region.
2605 # Maximum number of shared memory regions that can be used on the system
2609 # Maximum number of System V shared memory regions that can be attached to
2610 # a single process at one time.
2613 # Set the amount of time (in seconds) the system will wait before
2614 # rebooting automatically when a kernel panic occurs. If set to (-1),
2615 # the system will wait indefinitely until a key is pressed on the
2617 options PANIC_REBOOT_WAIT_TIME=16
2619 # Attempt to bypass the buffer cache and put data directly into the
2620 # userland buffer for read operation when O_DIRECT flag is set on the
2621 # file. Both offset and length of the read operation must be
2622 # multiples of the physical media sector size.
2626 # Specify a lower limit for the number of swap I/O buffers. They are
2627 # (among other things) used when bypassing the buffer cache due to
2628 # DIRECTIO kernel option enabled and O_DIRECT flag set on file.
2630 options NSWBUF_MIN=120
2632 #####################################################################
2634 # More undocumented options for linting.
2635 # Note that documenting these are not considered an affront.
2637 options CAM_DEBUG_DELAY
2639 # VFS cluster debugging.
2640 options CLUSTERDEBUG
2644 # Kernel filelock debugging.
2647 # System V compatible message queues
2648 # Please note that the values provided here are used to test kernel
2649 # building. The defaults in the sources provide almost the same numbers.
2650 # MSGSSZ must be a power of 2 between 8 and 1024.
2651 options MSGMNB=2049 # Max number of chars in queue
2652 options MSGMNI=41 # Max number of message queue identifiers
2653 options MSGSEG=2049 # Max number of message segments
2654 options MSGSSZ=16 # Size of a message segment
2655 options MSGTQL=41 # Max number of messages in system
2657 options NBUF=512 # Number of buffer headers
2659 options NMBCLUSTERS=1024 # Number of mbuf clusters
2661 options SCSI_NCR_DEBUG
2662 options SCSI_NCR_MAX_SYNC=10000
2663 options SCSI_NCR_MAX_WIDE=1
2664 options SCSI_NCR_MYADDR=7
2666 options SC_DEBUG_LEVEL=5 # Syscons debug level
2667 options SC_RENDER_DEBUG # syscons rendering debugging
2669 options SHOW_BUSYBUFS # List buffers that prevent root unmount
2670 options SLIP_IFF_OPTS
2671 options VFS_BIO_DEBUG # VFS buffer I/O debugging
2673 options KSTACK_MAX_PAGES=32 # Maximum pages to give the kernel stack
2675 # Adaptec Array Controller driver options
2676 options AAC_DEBUG # Debugging levels:
2677 # 0 - quiet, only emit warnings
2678 # 1 - noisy, emit major function
2679 # points and things done
2680 # 2 - extremely noisy, emit trace
2681 # items in loops, etc.
2683 # Yet more undocumented options for linting.
2684 # BKTR_ALLOC_PAGES has no effect except to cause warnings, and
2685 # BROOKTREE_ALLOC_PAGES hasn't actually been superseded by it, since the
2686 # driver still mostly spells this option BROOKTREE_ALLOC_PAGES.
2687 ##options BKTR_ALLOC_PAGES=(217*4+1)
2688 options BROOKTREE_ALLOC_PAGES=(217*4+1)
2689 options MAXFILES=999
2690 options NDEVFSINO=1025
2691 options NDEVFSOVERFLOW=32769
2693 # Yet more undocumented options for linting.