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 built-in 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
114 # MAXPHYS and DFLTPHYS
116 # These are the max and default 'raw' I/O block device access sizes.
117 # Reads and writes will be split into DFLTPHYS chunks. Some applications
118 # have better performance with larger raw I/O access sizes. Typically
119 # MAXPHYS should be twice the size of DFLTPHYS. Note that certain VM
120 # parameters are derived from these values and making them too large
121 # can make an an unbootable kernel.
123 # The defaults are 64K and 128K respectively.
124 options DFLTPHYS=(64*1024)
125 options MAXPHYS=(128*1024)
128 # This allows you to actually store this configuration file into
129 # the kernel binary itself, where it may be later read by saying:
130 # strings -n 3 /boot/kernel/kernel | sed -n 's/^___//p' > MYKERNEL
132 options INCLUDE_CONFIG_FILE # Include this file in kernel
134 options GEOM_AES # Don't use, use GEOM_BDE
135 options GEOM_BDE # Disk encryption.
136 options GEOM_BSD # BSD disklabels
137 options GEOM_CACHE # Disk cache.
138 options GEOM_CONCAT # Disk concatenation.
139 options GEOM_ELI # Disk encryption.
140 options GEOM_FOX # Redundant path mitigation
141 options GEOM_GATE # Userland services.
142 options GEOM_JOURNAL # Journaling.
143 options GEOM_LABEL # Providers labelization.
144 options GEOM_MBR # DOS/MBR partitioning
145 options GEOM_MIRROR # Disk mirroring.
146 options GEOM_MULTIPATH # Disk multipath
147 options GEOM_NOP # Test class.
148 options GEOM_PART_APM # Apple partitioning
149 options GEOM_PART_GPT # GPT partitioning
150 options GEOM_PART_MBR # MBR partitioning
151 options GEOM_PC98 # NEC PC9800 partitioning
152 options GEOM_RAID3 # RAID3 functionality.
153 options GEOM_SHSEC # Shared secret.
154 options GEOM_STRIPE # Disk striping.
155 options GEOM_SUNLABEL # Sun/Solaris partitioning
156 options GEOM_UZIP # Read-only compressed disks
157 options GEOM_VOL # Volume names from UFS superblock
158 options GEOM_ZERO # Performance testing helper.
161 # The root device and filesystem type can be compiled in;
162 # this provides a fallback option if the root device cannot
163 # be correctly guessed by the bootstrap code, or an override if
164 # the RB_DFLTROOT flag (-r) is specified when booting the kernel.
166 options ROOTDEVNAME=\"ufs:da0s2e\"
169 #####################################################################
172 # Specifying one of SCHED_4BSD or SCHED_ULE is mandatory. These options
173 # select which scheduler is compiled in.
175 # SCHED_4BSD is the historical, proven, BSD scheduler. It has a global run
176 # queue and no CPU affinity which makes it suboptimal for SMP. It has very
177 # good interactivity and priority selection.
179 # SCHED_ULE provides significant performance advantages over 4BSD on many
180 # workloads on SMP machines. It supports cpu-affinity, per-cpu runqueues
181 # and scheduler locks. It also has a stronger notion of interactivity
182 # which leads to better responsiveness even on uniprocessor machines. This
183 # will eventually become the default scheduler.
188 #####################################################################
191 # SMP enables building of a Symmetric MultiProcessor Kernel.
194 options SMP # Symmetric MultiProcessor Kernel
196 # ADAPTIVE_MUTEXES changes the behavior of blocking mutexes to spin
197 # if the thread that currently owns the mutex is executing on another
198 # CPU. This behaviour is enabled by default, so this option can be used
200 options NO_ADAPTIVE_MUTEXES
202 # ADAPTIVE_RWLOCKS changes the behavior of reader/writer locks to spin
203 # if the thread that currently owns the rwlock is executing on another
204 # CPU. This behaviour is enabled by default, so this option can be used
206 options NO_ADAPTIVE_RWLOCKS
208 # ADAPTIVE_GIANT causes the Giant lock to also be made adaptive when
209 # running without NO_ADAPTIVE_MUTEXES. Normally, because Giant is assumed
210 # to be held for extended periods, contention on Giant will cause a thread
211 # to sleep rather than spinning.
212 options ADAPTIVE_GIANT
214 # ADAPTIVE_SX changes the behavior of sx locks to spin if the thread
215 # that currently owns the lock is executing on another CPU. Note that
216 # in addition to enabling this option, individual sx locks must be
217 # initialized with the SX_ADAPTIVESPIN flag.
220 # MUTEX_NOINLINE forces mutex operations to call functions to perform each
221 # operation rather than inlining the simple cases. This can be used to
222 # shrink the size of the kernel text segment. Note that this behavior is
223 # already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
224 # and WITNESS options.
225 options MUTEX_NOINLINE
227 # RWLOCK_NOINLINE forces rwlock operations to call functions to perform each
228 # operation rather than inlining the simple cases. This can be used to
229 # shrink the size of the kernel text segment. Note that this behavior is
230 # already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
231 # and WITNESS options.
232 options RWLOCK_NOINLINE
234 # SX_NOINLINE forces sx lock operations to call functions to perform each
235 # operation rather than inlining the simple cases. This can be used to
236 # shrink the size of the kernel text segment. Note that this behavior is
237 # already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING,
238 # and WITNESS options.
241 # SMP Debugging Options:
243 # PREEMPTION allows the threads that are in the kernel to be preempted
244 # by higher priority threads. It helps with interactivity and
245 # allows interrupt threads to run sooner rather than waiting.
246 # WARNING! Only tested on amd64 and i386.
247 # FULL_PREEMPTION instructs the kernel to preempt non-realtime kernel
248 # threads. Its sole use is to expose race conditions and other
249 # bugs during development. Enabling this option will reduce
250 # performance and increase the frequency of kernel panics by
251 # design. If you aren't sure that you need it then you don't.
252 # Relies on the PREEMPTION option. DON'T TURN THIS ON.
253 # MUTEX_DEBUG enables various extra assertions in the mutex code.
254 # SLEEPQUEUE_PROFILING enables rudimentary profiling of the hash table
255 # used to hold active sleep queues.
256 # TURNSTILE_PROFILING enables rudimentary profiling of the hash table
257 # used to hold active lock queues.
258 # WITNESS enables the witness code which detects deadlocks and cycles
259 # during locking operations.
260 # WITNESS_KDB causes the witness code to drop into the kernel debugger if
261 # a lock hierarchy violation occurs or if locks are held when going to
263 # WITNESS_SKIPSPIN disables the witness checks on spin mutexes.
265 options FULL_PREEMPTION
269 options WITNESS_SKIPSPIN
271 # LOCK_PROFILING - Profiling locks. See LOCK_PROFILING(9) for details.
272 options LOCK_PROFILING
273 # Set the number of buffers and the hash size. The hash size MUST be larger
274 # than the number of buffers. Hash size should be prime.
275 options MPROF_BUFFERS="1536"
276 options MPROF_HASH_SIZE="1543"
278 # Profiling for internal hash tables.
279 options SLEEPQUEUE_PROFILING
280 options TURNSTILE_PROFILING
283 #####################################################################
284 # COMPATIBILITY OPTIONS
287 # Implement system calls compatible with 4.3BSD and older versions of
288 # FreeBSD. You probably do NOT want to remove this as much current code
289 # still relies on the 4.3 emulation. Note that some architectures that
290 # are supported by FreeBSD do not include support for certain important
291 # aspects of this compatibility option, namely those related to the
292 # signal delivery mechanism.
299 # Enable FreeBSD4 compatibility syscalls
300 options COMPAT_FREEBSD4
302 # Enable FreeBSD5 compatibility syscalls
303 options COMPAT_FREEBSD5
305 # Enable FreeBSD6 compatibility syscalls
306 options COMPAT_FREEBSD6
309 # These three options provide support for System V Interface
310 # Definition-style interprocess communication, in the form of shared
311 # memory, semaphores, and message queues, respectively.
318 #####################################################################
322 # Compile with kernel debugger related code.
327 # Print a stack trace of the current thread on the console for a panic.
332 # Don't enter the debugger for a panic. Intended for unattended operation
333 # where you may want to enter the debugger from the console, but still want
334 # the machine to recover from a panic.
336 options KDB_UNATTENDED
339 # Enable the ddb debugger backend.
344 # Print the numerical value of symbols in addition to the symbolic
350 # Enable the remote gdb debugger backend.
355 # SYSCTL_DEBUG enables a 'sysctl' debug tree that can be used to dump the
356 # contents of the registered sysctl nodes on the console. It is disabled by
357 # default because it generates excessively verbose console output that can
358 # interfere with serial console operation.
363 # DEBUG_MEMGUARD builds and enables memguard(9), a replacement allocator
364 # for the kernel used to detect modify-after-free scenarios. See the
365 # memguard(9) man page for more information on usage.
367 options DEBUG_MEMGUARD
370 # DEBUG_REDZONE enables buffer underflows and buffer overflows detection for
373 options DEBUG_REDZONE
376 # KTRACE enables the system-call tracing facility ktrace(2). To be more
377 # SMP-friendly, KTRACE uses a worker thread to process most trace events
378 # asynchronously to the thread generating the event. This requires a
379 # pre-allocated store of objects representing trace events. The
380 # KTRACE_REQUEST_POOL option specifies the initial size of this store.
381 # The size of the pool can be adjusted both at boottime and runtime via
382 # the kern.ktrace_request_pool tunable and sysctl.
384 options KTRACE #kernel tracing
385 options KTRACE_REQUEST_POOL=101
388 # KTR is a kernel tracing mechanism imported from BSD/OS. Currently
389 # it has no userland interface aside from a few sysctl's. It is
390 # enabled with the KTR option. KTR_ENTRIES defines the number of
391 # entries in the circular trace buffer; it must be a power of two.
392 # KTR_COMPILE defines the mask of events to compile into the kernel as
393 # defined by the KTR_* constants in <sys/ktr.h>. KTR_MASK defines the
394 # initial value of the ktr_mask variable which determines at runtime
395 # what events to trace. KTR_CPUMASK determines which CPU's log
396 # events, with bit X corresponding to CPU X. KTR_VERBOSE enables
397 # dumping of KTR events to the console by default. This functionality
398 # can be toggled via the debug.ktr_verbose sysctl and defaults to off
399 # if KTR_VERBOSE is not defined.
402 options KTR_ENTRIES=1024
403 options KTR_COMPILE=(KTR_INTR|KTR_PROC)
404 options KTR_MASK=KTR_INTR
405 options KTR_CPUMASK=0x3
409 # ALQ(9) is a facility for the asynchronous queuing of records from the kernel
410 # to a vnode, and is employed by services such as KTR(4) to produce trace
411 # files based on a kernel event stream. Records are written asynchronously
412 # in a worker thread.
418 # The INVARIANTS option is used in a number of source files to enable
419 # extra sanity checking of internal structures. This support is not
420 # enabled by default because of the extra time it would take to check
421 # for these conditions, which can only occur as a result of
422 # programming errors.
427 # The INVARIANT_SUPPORT option makes us compile in support for
428 # verifying some of the internal structures. It is a prerequisite for
429 # 'INVARIANTS', as enabling 'INVARIANTS' will make these functions be
430 # called. The intent is that you can set 'INVARIANTS' for single
431 # source files (by changing the source file or specifying it on the
432 # command line) if you have 'INVARIANT_SUPPORT' enabled. Also, if you
433 # wish to build a kernel module with 'INVARIANTS', then adding
434 # 'INVARIANT_SUPPORT' to your kernel will provide all the necessary
435 # infrastructure without the added overhead.
437 options INVARIANT_SUPPORT
440 # The DIAGNOSTIC option is used to enable extra debugging information
441 # from some parts of the kernel. As this makes everything more noisy,
442 # it is disabled by default.
447 # REGRESSION causes optional kernel interfaces necessary only for regression
448 # testing to be enabled. These interfaces may constitute security risks
449 # when enabled, as they permit processes to easily modify aspects of the
450 # run-time environment to reproduce unlikely or unusual (possibly normally
451 # impossible) scenarios.
456 # RESTARTABLE_PANICS allows one to continue from a panic as if it were
457 # a call to the debugger to continue from a panic as instead. It is only
458 # useful if a kernel debugger is present. To restart from a panic, reset
459 # the panicstr variable to NULL and continue execution. This option is
460 # for development use only and should NOT be used in production systems
461 # to "workaround" a panic.
463 #options RESTARTABLE_PANICS
466 # This option let some drivers co-exist that can't co-exist in a running
467 # system. This is used to be able to compile all kernel code in one go for
468 # quality assurance purposes (like this file, which the option takes it name
471 options COMPILING_LINT
474 #####################################################################
475 # PERFORMANCE MONITORING OPTIONS
478 # The hwpmc driver that allows the use of in-CPU performance monitoring
479 # counters for performance monitoring. The base kernel needs to configured
480 # with the 'options' line, while the hwpmc device can be either compiled
481 # in or loaded as a loadable kernel module.
483 # Additional configuration options may be required on specific architectures,
484 # please see hwpmc(4).
486 device hwpmc # Driver (also a loadable module)
487 options HWPMC_HOOKS # Other necessary kernel hooks
490 #####################################################################
496 options INET #Internet communications protocols
497 options INET6 #IPv6 communications protocols
499 # In order to enable IPSEC you MUST also add device crypto to
500 # your kernel configuration
501 options IPSEC #IP security (requires device crypto)
502 #options IPSEC_DEBUG #debug for IP security
504 # Set IPSEC_FILTERTUNNEL to force packets coming through a tunnel
505 # to be processed by any configured packet filtering twice.
506 # The default is that packets coming out of a tunnel are _not_ processed;
507 # they are assumed trusted.
509 # IPSEC history is preserved for such packets, and can be filtered
510 # using ipfw(8)'s 'ipsec' keyword, when this option is enabled.
512 #options IPSEC_FILTERTUNNEL #filter ipsec packets from a tunnel
514 options IPX #IPX/SPX communications protocols
516 options NCP #NetWare Core protocol
518 options NETATALK #Appletalk communications protocols
519 options NETATALKDEBUG #Appletalk debugging
523 # NETSMB enables support for SMB protocol, it requires LIBMCHAIN and LIBICONV
525 options NETSMB #SMB/CIFS requester
527 # mchain library. It can be either loaded as KLD or compiled into kernel
530 # libalias library, performing NAT
534 # SCTP is a NEW transport protocol defined by
535 # RFC2960 updated by RFC3309 and RFC3758.. and
536 # soon to have a new base RFC and many many more
537 # extensions. This release supports all the extensions
538 # including many drafts (most about to become RFC's).
539 # It is the premeier SCTP implementation in the NET
540 # and is quite well tested.
542 # Note YOU MUST have both INET and INET6 defined.
543 # you don't have to enable V6, but SCTP is
544 # dual stacked and so far we have not teased apart
545 # the V6 and V4.. since an association can span
546 # both a V6 and V4 address at the SAME time :-)
549 # There are bunches of options:
550 # this one turns on all sorts of
551 # nastly printing that you can
552 # do. Its all controled by a
553 # bit mask (settable by socket opt and
554 # by sysctl). Including will not cause
555 # logging until you set the bits.. but it
556 # can be quite verbose.. so without this
557 # option we don't do any of the tests for
558 # bits and prints.. which makes the code run
559 # faster.. if you are not debugging don't use.
562 # This option turns off the CRC32c checksum. Basically
563 # You will not be able to talk to anyone else that
564 # has not done this. Its more for expermentation to
565 # see how much CPU the CRC32c really takes. Most new
566 # cards for TCP support checksum offload.. so this
567 # option gives you a "view" into what SCTP would be
568 # like with such an offload (which only exists in
569 # high in iSCSI boards so far). With the new
570 # splitting 8's algorithm its not as bad as it used
571 # to be.. but it does speed things up try only
572 # for in a captured lab environment :-)
573 options SCTP_WITH_NO_CSUM
577 # All that options after that turn on specific types of
578 # logging. You can monitor CWND growth, flight size
579 # and all sorts of things. Go look at the code and
580 # see. I have used this to produce interesting
581 # charts and graphs as well :->
583 # I have not yet commited the tools to get and print
584 # the logs, I will do that eventually .. before then
585 # if you want them send me an email rrs@freebsd.org
586 # You basically must have KTR enabled for these
587 # and you then set the sysctl to turn on/off various
588 # logging bits. Use ktrdump to pull the log and run
589 # it through a dispaly program.. and graphs and other
592 options SCTP_LOCK_LOGGING
593 options SCTP_MBUF_LOGGING
594 options SCTP_MBCNT_LOGGING
595 options SCTP_PACKET_LOGGING
596 options SCTP_LTRACE_CHUNKS
597 options SCTP_LTRACE_ERRORS
600 # altq(9). Enable the base part of the hooks with the ALTQ option.
601 # Individual disciplines must be built into the base system and can not be
602 # loaded as modules at this point. ALTQ requires a stable TSC so if yours is
603 # broken or changes with CPU throttling then you must also have the ALTQ_NOPCC
606 options ALTQ_CBQ # Class Bases Queueing
607 options ALTQ_RED # Random Early Detection
608 options ALTQ_RIO # RED In/Out
609 options ALTQ_HFSC # Hierarchical Packet Scheduler
610 options ALTQ_CDNR # Traffic conditioner
611 options ALTQ_PRIQ # Priority Queueing
612 options ALTQ_NOPCC # Required if the TSC is unusable
615 # netgraph(4). Enable the base netgraph code with the NETGRAPH option.
616 # Individual node types can be enabled with the corresponding option
617 # listed below; however, this is not strictly necessary as netgraph
618 # will automatically load the corresponding KLD module if the node type
619 # is not already compiled into the kernel. Each type below has a
620 # corresponding man page, e.g., ng_async(8).
621 options NETGRAPH # netgraph(4) system
622 options NETGRAPH_DEBUG # enable extra debugging, this
623 # affects netgraph(4) and nodes
625 options NETGRAPH_ASYNC
626 options NETGRAPH_ATMLLC
627 options NETGRAPH_ATM_ATMPIF
628 options NETGRAPH_BLUETOOTH # ng_bluetooth(4)
629 options NETGRAPH_BLUETOOTH_BT3C # ng_bt3c(4)
630 options NETGRAPH_BLUETOOTH_H4 # ng_h4(4)
631 options NETGRAPH_BLUETOOTH_HCI # ng_hci(4)
632 options NETGRAPH_BLUETOOTH_L2CAP # ng_l2cap(4)
633 options NETGRAPH_BLUETOOTH_SOCKET # ng_btsocket(4)
634 options NETGRAPH_BLUETOOTH_UBT # ng_ubt(4)
635 options NETGRAPH_BLUETOOTH_UBTBCMFW # ubtbcmfw(4)
637 options NETGRAPH_BRIDGE
639 options NETGRAPH_CISCO
640 options NETGRAPH_DEFLATE
641 options NETGRAPH_DEVICE
642 options NETGRAPH_ECHO
643 options NETGRAPH_EIFACE
644 options NETGRAPH_ETHER
646 options NETGRAPH_FRAME_RELAY
648 options NETGRAPH_GIF_DEMUX
649 options NETGRAPH_HOLE
650 options NETGRAPH_IFACE
651 options NETGRAPH_IP_INPUT
652 options NETGRAPH_IPFW
653 options NETGRAPH_KSOCKET
654 options NETGRAPH_L2TP
656 # MPPC compression requires proprietary files (not included)
657 #options NETGRAPH_MPPC_COMPRESSION
658 options NETGRAPH_MPPC_ENCRYPTION
659 options NETGRAPH_NETFLOW
661 options NETGRAPH_ONE2MANY
663 options NETGRAPH_PPPOE
664 options NETGRAPH_PPTPGRE
665 options NETGRAPH_PRED1
666 options NETGRAPH_RFC1490
667 options NETGRAPH_SOCKET
668 options NETGRAPH_SPLIT
669 options NETGRAPH_SPPP
671 options NETGRAPH_TCPMSS
677 # NgATM - Netgraph ATM
679 options NGATM_ATMBASE
685 device mn # Munich32x/Falc54 Nx64kbit/sec cards.
688 # Network interfaces:
689 # The `loop' device is MANDATORY when networking is enabled.
690 # The `ether' device provides generic code to handle
691 # Ethernets; it is MANDATORY when an Ethernet device driver is
692 # configured or token-ring is enabled.
693 # The `vlan' device implements the VLAN tagging of Ethernet frames
694 # according to IEEE 802.1Q. It requires `device miibus'.
695 # The `wlan' device provides generic code to support 802.11
696 # drivers, including host AP mode; it is MANDATORY for the wi,
697 # ath, and awi drivers and will eventually be required by all 802.11 drivers.
698 # The `wlan_wep', `wlan_tkip', and `wlan_ccmp' devices provide
699 # support for WEP, TKIP, and AES-CCMP crypto protocols optionally
700 # used with 802.11 devices that depend on the `wlan' module.
701 # The `wlan_xauth' device provides support for external (i.e. user-mode)
702 # authenticators for use with 802.11 drivers that use the `wlan'
703 # module and support 802.1x and/or WPA security protocols.
704 # The `wlan_acl' device provides a MAC-based access control mechanism
705 # for use with 802.11 drivers operating in ap mode and using the
707 # The `fddi' device provides generic code to support FDDI.
708 # The `arcnet' device provides generic code to support Arcnet.
709 # The `sppp' device serves a similar role for certain types
710 # of synchronous PPP links (like `cx', `ar').
711 # The `sl' device implements the Serial Line IP (SLIP) service.
712 # The `ppp' device implements the Point-to-Point Protocol.
713 # The `bpf' device enables the Berkeley Packet Filter. Be
714 # aware of the legal and administrative consequences of enabling this
715 # option. The number of devices determines the maximum number of
716 # simultaneous BPF clients programs runnable. DHCP requires bpf.
717 # The `disc' device implements a minimal network interface,
718 # which throws away all packets sent and never receives any. It is
719 # included for testing and benchmarking purposes.
720 # The `edsc' device implements a minimal Ethernet interface,
721 # which discards all packets sent and receives none.
722 # The `tap' device is a pty-like virtual Ethernet interface
723 # The `tun' device implements (user-)ppp and nos-tun
724 # The `gif' device implements IPv6 over IP4 tunneling,
725 # IPv4 over IPv6 tunneling, IPv4 over IPv4 tunneling and
726 # IPv6 over IPv6 tunneling.
727 # The `gre' device implements two types of IP4 over IP4 tunneling:
728 # GRE and MOBILE, as specified in the RFC1701 and RFC2004.
729 # The XBONEHACK option allows the same pair of addresses to be configured on
730 # multiple gif interfaces.
731 # The `faith' device captures packets sent to it and diverts them
732 # to the IPv4/IPv6 translation daemon.
733 # The `stf' device implements 6to4 encapsulation.
734 # The `ef' device provides support for multiple ethernet frame types
735 # specified via ETHER_* options. See ef(4) for details.
737 # The pf packet filter consists of three devices:
738 # The `pf' device provides /dev/pf and the firewall code itself.
739 # The `pflog' device provides the pflog0 interface which logs packets.
740 # The `pfsync' device provides the pfsync0 interface used for
741 # synchronization of firewall state tables (over the net).
742 # The PF_MPSAFE_UGID option enables a special workaround for a LOR with
743 # user/group rules that would otherwise lead to a deadlock. This has
744 # performance implications and should be used with care.
746 # The PPP_BSDCOMP option enables support for compress(1) style entire
747 # packet compression, the PPP_DEFLATE is for zlib/gzip style compression.
748 # PPP_FILTER enables code for filtering the ppp data stream and selecting
749 # events for resetting the demand dial activity timer - requires bpf.
750 # See pppd(8) for more details.
752 device ether #Generic Ethernet
753 device vlan #VLAN support (needs miibus)
754 device wlan #802.11 support
755 device wlan_wep #802.11 WEP support
756 device wlan_ccmp #802.11 CCMP support
757 device wlan_tkip #802.11 TKIP support
758 device wlan_xauth #802.11 external authenticator support
759 device wlan_acl #802.11 MAC ACL support
760 device wlan_amrr #AMRR transmit rate control algorithm
761 device wlan_scan_ap #802.11 AP mode scanning
762 device wlan_scan_sta #802.11 STA mode scanning
763 device token #Generic TokenRing
764 device fddi #Generic FDDI
765 device arcnet #Generic Arcnet
766 device sppp #Generic Synchronous PPP
767 device loop #Network loopback device
768 device bpf #Berkeley packet filter
769 device disc #Discard device based on loopback
770 device edsc #Ethernet discard device
771 device tap #Virtual Ethernet driver
772 device tun #Tunnel driver (ppp(8), nos-tun(8))
773 device sl #Serial Line IP
774 device gre #IP over IP tunneling
775 device if_bridge #Bridge interface
776 device pf #PF OpenBSD packet-filter firewall
777 device pflog #logging support interface for PF
778 device pfsync #synchronization interface for PF
779 options PF_MPSAFE_UGID #Workaround LOR with user/group rules
780 device carp #Common Address Redundancy Protocol
781 device enc #IPsec interface
782 device ppp #Point-to-point protocol
783 options PPP_BSDCOMP #PPP BSD-compress support
784 options PPP_DEFLATE #PPP zlib/deflate/gzip support
785 options PPP_FILTER #enable bpf filtering (needs bpf)
786 device lagg #Link aggregation interface
788 device ef # Multiple ethernet frames support
789 options ETHER_II # enable Ethernet_II frame
790 options ETHER_8023 # enable Ethernet_802.3 (Novell) frame
791 options ETHER_8022 # enable Ethernet_802.2 frame
792 options ETHER_SNAP # enable Ethernet_802.2/SNAP frame
795 device gif #IPv6 and IPv4 tunneling
797 device faith #for IPv6 and IPv4 translation
798 device stf #6to4 IPv6 over IPv4 encapsulation
801 # Internet family options:
803 # MROUTING enables the kernel multicast packet forwarder, which works
804 # with mrouted and XORP.
806 # IPFIREWALL enables support for IP firewall construction, in
807 # conjunction with the `ipfw' program. IPFIREWALL_VERBOSE sends
808 # logged packets to the system logger. IPFIREWALL_VERBOSE_LIMIT
809 # limits the number of times a matching entry can be logged.
811 # WARNING: IPFIREWALL defaults to a policy of "deny ip from any to any"
812 # and if you do not add other rules during startup to allow access,
813 # YOU WILL LOCK YOURSELF OUT. It is suggested that you set firewall_type=open
814 # in /etc/rc.conf when first enabling this feature, then refining the
815 # firewall rules in /etc/rc.firewall after you've tested that the new kernel
816 # feature works properly.
818 # IPFIREWALL_DEFAULT_TO_ACCEPT causes the default rule (at boot) to
819 # allow everything. Use with care, if a cracker can crash your
820 # firewall machine, they can get to your protected machines. However,
821 # if you are using it as an as-needed filter for specific problems as
822 # they arise, then this may be for you. Changing the default to 'allow'
823 # means that you won't get stuck if the kernel and /sbin/ipfw binary get
826 # IPDIVERT enables the divert IP sockets, used by ``ipfw divert''. It
827 # depends on IPFIREWALL if compiled into the kernel.
829 # IPFIREWALL_FORWARD enables changing of the packet destination either
830 # to do some sort of policy routing or transparent proxying. Used by
831 # ``ipfw forward''. All redirections apply to locally generated
832 # packets too. Because of this great care is required when
833 # crafting the ruleset.
835 # IPFIREWALL_NAT adds support for in kernel nat in ipfw, and it requires
836 # LIBALIAS. To build an ipfw kld with nat support enabled, add
837 # "CFLAGS+= -DIPFIREWALL_NAT" to your make.conf.
839 # IPSTEALTH enables code to support stealth forwarding (i.e., forwarding
840 # packets without touching the TTL). This can be useful to hide firewalls
841 # from traceroute and similar tools.
843 # TCPDEBUG enables code which keeps traces of the TCP state machine
844 # for sockets with the SO_DEBUG option set, which can then be examined
845 # using the trpt(8) utility.
847 options MROUTING # Multicast routing
848 options IPFIREWALL #firewall
849 options IPFIREWALL_VERBOSE #enable logging to syslogd(8)
850 options IPFIREWALL_VERBOSE_LIMIT=100 #limit verbosity
851 options IPFIREWALL_DEFAULT_TO_ACCEPT #allow everything by default
852 options IPFIREWALL_FORWARD #packet destination changes
853 options IPFIREWALL_NAT #ipfw kernel nat support
854 options IPDIVERT #divert sockets
855 options IPFILTER #ipfilter support
856 options IPFILTER_LOG #ipfilter logging
857 options IPFILTER_LOOKUP #ipfilter pools
858 options IPFILTER_DEFAULT_BLOCK #block all packets by default
859 options IPSTEALTH #support for stealth forwarding
862 # The MBUF_STRESS_TEST option enables options which create
863 # various random failures / extreme cases related to mbuf
864 # functions. See mbuf(9) for a list of available test cases.
865 options MBUF_STRESS_TEST
867 # Statically Link in accept filters
868 options ACCEPT_FILTER_DATA
869 options ACCEPT_FILTER_HTTP
871 # TCP_SIGNATURE adds support for RFC 2385 (TCP-MD5) digests. These are
872 # carried in TCP option 19. This option is commonly used to protect
873 # TCP sessions (e.g. BGP) where IPSEC is not available nor desirable.
874 # This is enabled on a per-socket basis using the TCP_MD5SIG socket option.
875 # This requires the use of 'device crypto', 'options IPSEC'
876 # or 'device cryptodev'.
877 #options TCP_SIGNATURE #include support for RFC 2385
879 # DUMMYNET enables the "dummynet" bandwidth limiter. You need IPFIREWALL
880 # as well. See dummynet(4) and ipfw(8) for more info. When you run
881 # DUMMYNET it is advisable to also have "options HZ=1000" to achieve a
882 # smoother scheduling of the traffic.
885 # Zero copy sockets support. This enables "zero copy" for sending and
886 # receiving data via a socket. The send side works for any type of NIC,
887 # the receive side only works for NICs that support MTUs greater than the
888 # page size of your architecture and that support header splitting. See
889 # zero_copy(9) for more details.
890 options ZERO_COPY_SOCKETS
893 # ATM (HARP version) options
895 # XXX: These have been disabled in FreeBSD 7.0 as they are not MPSAFE.
897 # ATM_CORE includes the base ATM functionality code. This must be included
900 # ATM_IP includes support for running IP over ATM.
902 # At least one (and usually only one) of the following signalling managers
903 # must be included (note that all signalling managers include PVC support):
904 # ATM_SIGPVC includes support for the PVC-only signalling manager `sigpvc'.
905 # ATM_SPANS includes support for the `spans' signalling manager, which runs
906 # the FORE Systems's proprietary SPANS signalling protocol.
907 # ATM_UNI includes support for the `uni30' and `uni31' signalling managers,
908 # which run the ATM Forum UNI 3.x signalling protocols.
910 # The `hfa' driver provides support for the FORE Systems, Inc.
911 # PCA-200E ATM PCI Adapter.
913 # The `harp' pseudo-driver makes all NATM interface drivers available to HARP.
915 #options ATM_CORE #core ATM protocol family
916 #options ATM_IP #IP over ATM support
917 #options ATM_SIGPVC #SIGPVC signalling manager
918 #options ATM_SPANS #SPANS signalling manager
919 #options ATM_UNI #UNI signalling manager
921 #device hfa #FORE PCA-200E ATM PCI
922 #device harp #Pseudo-interface for NATM
925 #####################################################################
929 # Only the root, /usr, and /tmp filesystems need be statically
930 # compiled; everything else will be automatically loaded at mount
931 # time. (Exception: the UFS family--- FFS --- cannot
932 # currently be demand-loaded.) Some people still prefer to statically
933 # compile other filesystems as well.
935 # NB: The PORTAL filesystem is known to be buggy, and WILL panic your
936 # system if you attempt to do anything with it. It is included here
937 # as an incentive for some enterprising soul to sit down and fix it.
938 # The UNION filesystem was known to be buggy in the past. It is now
939 # being actively maintained, although there are still some issues being
943 # One of these is mandatory:
944 options FFS #Fast filesystem
945 options NFSCLIENT #Network File System client
947 # The rest are optional:
948 options CD9660 #ISO 9660 filesystem
949 options FDESCFS #File descriptor filesystem
950 options HPFS #OS/2 File system
951 options MSDOSFS #MS DOS File System (FAT, FAT32)
952 options NFSSERVER #Network File System server
953 options NTFS #NT File System
954 options NULLFS #NULL filesystem
955 # Broken (depends on NCP):
956 #options NWFS #NetWare filesystem
957 options PORTALFS #Portal filesystem
958 options PROCFS #Process filesystem (requires PSEUDOFS)
959 options PSEUDOFS #Pseudo-filesystem framework
960 options PSEUDOFS_TRACE #Debugging support for PSEUDOFS
961 options SMBFS #SMB/CIFS filesystem
962 options UDF #Universal Disk Format
963 options UNIONFS #Union filesystem
964 # The xFS_ROOT options REQUIRE the associated ``options xFS''
965 options NFS_ROOT #NFS usable as root device
967 # Soft updates is a technique for improving filesystem speed and
968 # making abrupt shutdown less risky.
972 # Extended attributes allow additional data to be associated with files,
973 # and is used for ACLs, Capabilities, and MAC labels.
974 # See src/sys/ufs/ufs/README.extattr for more information.
976 options UFS_EXTATTR_AUTOSTART
978 # Access Control List support for UFS filesystems. The current ACL
979 # implementation requires extended attribute support, UFS_EXTATTR,
980 # for the underlying filesystem.
981 # See src/sys/ufs/ufs/README.acls for more information.
984 # Directory hashing improves the speed of operations on very large
985 # directories at the expense of some memory.
988 # Gjournal-based UFS journaling support.
991 # Make space in the kernel for a root filesystem on a md device.
992 # Define to the number of kilobytes to reserve for the filesystem.
993 options MD_ROOT_SIZE=10
995 # Make the md device a potential root device, either with preloaded
996 # images of type mfs_root or md_root.
999 # Disk quotas are supported when this option is enabled.
1000 options QUOTA #enable disk quotas
1002 # If you are running a machine just as a fileserver for PC and MAC
1003 # users, using SAMBA or Netatalk, you may consider setting this option
1004 # and keeping all those users' directories on a filesystem that is
1005 # mounted with the suiddir option. This gives new files the same
1006 # ownership as the directory (similar to group). It's a security hole
1007 # if you let these users run programs, so confine it to file-servers
1008 # (but it'll save you lots of headaches in those cases). Root owned
1009 # directories are exempt and X bits are cleared. The suid bit must be
1010 # set on the directory as well; see chmod(1) PC owners can't see/set
1011 # ownerships so they keep getting their toes trodden on. This saves
1012 # you all the support calls as the filesystem it's used on will act as
1013 # they expect: "It's my dir so it must be my file".
1018 options NFS_MINATTRTIMO=3 # VREG attrib cache timeout in sec
1019 options NFS_MAXATTRTIMO=60
1020 options NFS_MINDIRATTRTIMO=30 # VDIR attrib cache timeout in sec
1021 options NFS_MAXDIRATTRTIMO=60
1022 options NFS_GATHERDELAY=10 # Default write gather delay (msec)
1023 options NFS_WDELAYHASHSIZ=16 # and with this
1024 options NFS_DEBUG # Enable NFS Debugging
1027 options CODA #CODA filesystem.
1028 device vcoda #coda minicache <-> venus comm.
1029 # Use the old Coda 5.x venus<->kernel interface instead of the new
1030 # realms-aware 6.x protocol.
1031 #options CODA_COMPAT_5
1034 # Add support for the EXT2FS filesystem of Linux fame. Be a bit
1035 # careful with this - the ext2fs code has a tendency to lag behind
1036 # changes and not be exercised very much, so mounting read/write could
1037 # be dangerous (and even mounting read only could result in panics.)
1042 # Add support for the ReiserFS filesystem (used in Linux). Currently,
1043 # this is limited to read-only access.
1048 # Add support for the SGI XFS filesystem. Currently,
1049 # this is limited to read-only access.
1053 # Use real implementations of the aio_* system calls. There are numerous
1054 # stability and security issues in the current aio code that make it
1055 # unsuitable for inclusion on machines with untrusted local users.
1058 # Cryptographically secure random number generator; /dev/random
1061 # The system memory devices; /dev/mem, /dev/kmem
1064 # Optional character code conversion support with LIBICONV.
1065 # Each option requires their base file system and LIBICONV.
1066 options CD9660_ICONV
1067 options MSDOSFS_ICONV
1072 #####################################################################
1075 # Real time extensions added in the 1993 POSIX
1076 # _KPOSIX_PRIORITY_SCHEDULING: Build in _POSIX_PRIORITY_SCHEDULING
1078 options _KPOSIX_PRIORITY_SCHEDULING
1079 # p1003_1b_semaphores are very experimental,
1080 # user should be ready to assist in debugging if problems arise.
1081 options P1003_1B_SEMAPHORES
1083 # POSIX message queue
1084 options P1003_1B_MQUEUE
1086 #####################################################################
1087 # SECURITY POLICY PARAMETERS
1089 # Support for BSM audit
1092 # Support for Mandatory Access Control (MAC):
1095 options MAC_BSDEXTENDED
1100 options MAC_PARTITION
1102 options MAC_SEEOTHERUIDS
1107 #####################################################################
1110 # The granularity of operation is controlled by the kernel option HZ whose
1111 # default value (100) means a granularity of 10ms (1s/HZ).
1112 # Some subsystems, such as DUMMYNET, might benefit from a smaller
1113 # granularity such as 1ms or less, for a smoother scheduling of packets.
1114 # Consider, however, that reducing the granularity too much might
1115 # cause excessive overhead in clock interrupt processing,
1116 # potentially causing ticks to be missed and thus actually reducing
1117 # the accuracy of operation.
1121 # Enable support for the kernel PLL to use an external PPS signal,
1122 # under supervision of [x]ntpd(8)
1123 # More info in ntpd documentation: http://www.eecis.udel.edu/~ntp
1128 #####################################################################
1131 # SCSI DEVICE CONFIGURATION
1133 # The SCSI subsystem consists of the `base' SCSI code, a number of
1134 # high-level SCSI device `type' drivers, and the low-level host-adapter
1135 # device drivers. The host adapters are listed in the ISA and PCI
1136 # device configuration sections below.
1138 # It is possible to wire down your SCSI devices so that a given bus,
1139 # target, and LUN always come on line as the same device unit. In
1140 # earlier versions the unit numbers were assigned in the order that
1141 # the devices were probed on the SCSI bus. This means that if you
1142 # removed a disk drive, you may have had to rewrite your /etc/fstab
1143 # file, and also that you had to be careful when adding a new disk
1144 # as it may have been probed earlier and moved your device configuration
1145 # around. (See also option GEOM_VOL for a different solution to this
1148 # This old behavior is maintained as the default behavior. The unit
1149 # assignment begins with the first non-wired down unit for a device
1150 # type. For example, if you wire a disk as "da3" then the first
1151 # non-wired disk will be assigned da4.
1153 # The syntax for wiring down devices is:
1155 hint.scbus.0.at="ahc0"
1156 hint.scbus.1.at="ahc1"
1157 hint.scbus.1.bus="0"
1158 hint.scbus.3.at="ahc2"
1159 hint.scbus.3.bus="0"
1160 hint.scbus.2.at="ahc2"
1161 hint.scbus.2.bus="1"
1162 hint.da.0.at="scbus0"
1163 hint.da.0.target="0"
1165 hint.da.1.at="scbus3"
1166 hint.da.1.target="1"
1167 hint.da.2.at="scbus2"
1168 hint.da.2.target="3"
1169 hint.sa.1.at="scbus1"
1170 hint.sa.1.target="6"
1172 # "units" (SCSI logical unit number) that are not specified are
1173 # treated as if specified as LUN 0.
1175 # All SCSI devices allocate as many units as are required.
1177 # The ch driver drives SCSI Media Changer ("jukebox") devices.
1179 # The da driver drives SCSI Direct Access ("disk") and Optical Media
1182 # The sa driver drives SCSI Sequential Access ("tape") devices.
1184 # The cd driver drives SCSI Read Only Direct Access ("cd") devices.
1186 # The ses driver drives SCSI Environment Services ("ses") and
1187 # SAF-TE ("SCSI Accessible Fault-Tolerant Enclosure") devices.
1189 # The pt driver drives SCSI Processor devices.
1191 # The sg driver provides a passthrough API that is compatible with the
1192 # Linux SG driver. It will work in conjunction with the COMPAT_LINUX
1193 # option to run linux SG apps. It can also stand on its own and provide
1194 # source level API compatiblity for porting apps to FreeBSD.
1196 # Target Mode support is provided here but also requires that a SIM
1197 # (SCSI Host Adapter Driver) provide support as well.
1199 # The targ driver provides target mode support as a Processor type device.
1200 # It exists to give the minimal context necessary to respond to Inquiry
1201 # commands. There is a sample user application that shows how the rest
1202 # of the command support might be done in /usr/share/examples/scsi_target.
1204 # The targbh driver provides target mode support and exists to respond
1205 # to incoming commands that do not otherwise have a logical unit assigned
1208 # The "unknown" device (uk? in pre-2.0.5) is now part of the base SCSI
1209 # configuration as the "pass" driver.
1211 device scbus #base SCSI code
1212 device ch #SCSI media changers
1213 device da #SCSI direct access devices (aka disks)
1214 device sa #SCSI tapes
1215 device cd #SCSI CD-ROMs
1216 device ses #SCSI Environmental Services (and SAF-TE)
1217 device pt #SCSI processor
1218 device targ #SCSI Target Mode Code
1219 device targbh #SCSI Target Mode Blackhole Device
1220 device pass #CAM passthrough driver
1221 device sg #Linux SCSI passthrough
1224 # debugging options:
1225 # -- NOTE -- If you specify one of the bus/target/lun options, you must
1227 # CAMDEBUG: When defined enables debugging macros
1228 # CAM_DEBUG_BUS: Debug the given bus. Use -1 to debug all busses.
1229 # CAM_DEBUG_TARGET: Debug the given target. Use -1 to debug all targets.
1230 # CAM_DEBUG_LUN: Debug the given lun. Use -1 to debug all luns.
1231 # CAM_DEBUG_FLAGS: OR together CAM_DEBUG_INFO, CAM_DEBUG_TRACE,
1232 # CAM_DEBUG_SUBTRACE, and CAM_DEBUG_CDB
1234 # CAM_MAX_HIGHPOWER: Maximum number of concurrent high power (start unit) cmds
1235 # SCSI_NO_SENSE_STRINGS: When defined disables sense descriptions
1236 # SCSI_NO_OP_STRINGS: When defined disables opcode descriptions
1237 # SCSI_DELAY: The number of MILLISECONDS to freeze the SIM (scsi adapter)
1238 # queue after a bus reset, and the number of milliseconds to
1239 # freeze the device queue after a bus device reset. This
1240 # can be changed at boot and runtime with the
1241 # kern.cam.scsi_delay tunable/sysctl.
1243 options CAM_DEBUG_BUS=-1
1244 options CAM_DEBUG_TARGET=-1
1245 options CAM_DEBUG_LUN=-1
1246 options CAM_DEBUG_FLAGS=(CAM_DEBUG_INFO|CAM_DEBUG_TRACE|CAM_DEBUG_CDB)
1247 options CAM_MAX_HIGHPOWER=4
1248 options SCSI_NO_SENSE_STRINGS
1249 options SCSI_NO_OP_STRINGS
1250 options SCSI_DELAY=5000 # Be pessimistic about Joe SCSI device
1252 # Options for the CAM CDROM driver:
1253 # CHANGER_MIN_BUSY_SECONDS: Guaranteed minimum time quantum for a changer LUN
1254 # CHANGER_MAX_BUSY_SECONDS: Maximum time quantum per changer LUN, only
1255 # enforced if there is I/O waiting for another LUN
1256 # The compiled in defaults for these variables are 2 and 10 seconds,
1259 # These can also be changed on the fly with the following sysctl variables:
1260 # kern.cam.cd.changer.min_busy_seconds
1261 # kern.cam.cd.changer.max_busy_seconds
1263 options CHANGER_MIN_BUSY_SECONDS=2
1264 options CHANGER_MAX_BUSY_SECONDS=10
1266 # Options for the CAM sequential access driver:
1267 # SA_IO_TIMEOUT: Timeout for read/write/wfm operations, in minutes
1268 # SA_SPACE_TIMEOUT: Timeout for space operations, in minutes
1269 # SA_REWIND_TIMEOUT: Timeout for rewind operations, in minutes
1270 # SA_ERASE_TIMEOUT: Timeout for erase operations, in minutes
1271 # SA_1FM_AT_EOD: Default to model which only has a default one filemark at EOT.
1272 options SA_IO_TIMEOUT=4
1273 options SA_SPACE_TIMEOUT=60
1274 options SA_REWIND_TIMEOUT=(2*60)
1275 options SA_ERASE_TIMEOUT=(4*60)
1276 options SA_1FM_AT_EOD
1278 # Optional timeout for the CAM processor target (pt) device
1279 # This is specified in seconds. The default is 60 seconds.
1280 options SCSI_PT_DEFAULT_TIMEOUT=60
1282 # Optional enable of doing SES passthrough on other devices (e.g., disks)
1284 # Normally disabled because a lot of newer SCSI disks report themselves
1285 # as having SES capabilities, but this can then clot up attempts to build
1286 # build a topology with the SES device that's on the box these drives
1288 options SES_ENABLE_PASSTHROUGH
1291 #####################################################################
1292 # MISCELLANEOUS DEVICES AND OPTIONS
1294 # The `pty' device usually turns out to be ``effectively mandatory'',
1295 # as it is required for `telnetd', `rlogind', `screen', `emacs', and
1296 # `xterm', among others.
1298 device pty #Pseudo ttys
1299 device nmdm #back-to-back tty devices
1300 device md #Memory/malloc disk
1301 device snp #Snoop device - to look at pty/vty/etc..
1302 device ccd #Concatenated disk driver
1303 device firmware #firmware(9) support
1305 # Kernel side iconv library
1308 # Size of the kernel message buffer. Should be N * pagesize.
1309 options MSGBUF_SIZE=40960
1311 # Maximum size of a tty or pty input buffer.
1315 #####################################################################
1316 # HARDWARE DEVICE CONFIGURATION
1318 # For ISA the required hints are listed.
1319 # EISA, MCA, PCI and pccard are self identifying buses, so no hints
1323 # Mandatory devices:
1326 # These options are valid for other keyboard drivers as well.
1327 options KBD_DISABLE_KEYMAP_LOAD # refuse to load a keymap
1328 options KBD_INSTALL_CDEV # install a CDEV entry in /dev
1330 options FB_DEBUG # Frame buffer debugging
1332 device splash # Splash screen and screen saver support
1334 # Various screen savers.
1347 # The syscons console driver (SCO color console compatible).
1350 options MAXCONS=16 # number of virtual consoles
1351 options SC_ALT_MOUSE_IMAGE # simplified mouse cursor in text mode
1352 options SC_DFLT_FONT # compile font in
1353 makeoptions SC_DFLT_FONT=cp850
1354 options SC_DISABLE_KDBKEY # disable `debug' key
1355 options SC_DISABLE_REBOOT # disable reboot key sequence
1356 options SC_HISTORY_SIZE=200 # number of history buffer lines
1357 options SC_MOUSE_CHAR=0x3 # char code for text mode mouse cursor
1358 options SC_PIXEL_MODE # add support for the raster text mode
1360 # The following options will let you change the default colors of syscons.
1361 options SC_NORM_ATTR=(FG_GREEN|BG_BLACK)
1362 options SC_NORM_REV_ATTR=(FG_YELLOW|BG_GREEN)
1363 options SC_KERNEL_CONS_ATTR=(FG_RED|BG_BLACK)
1364 options SC_KERNEL_CONS_REV_ATTR=(FG_BLACK|BG_RED)
1366 # The following options will let you change the default behaviour of
1367 # cut-n-paste feature
1368 options SC_CUT_SPACES2TABS # convert leading spaces into tabs
1369 options SC_CUT_SEPCHARS=\"x09\" # set of characters that delimit words
1370 # (default is single space - \"x20\")
1372 # If you have a two button mouse, you may want to add the following option
1373 # to use the right button of the mouse to paste text.
1374 options SC_TWOBUTTON_MOUSE
1376 # You can selectively disable features in syscons.
1377 options SC_NO_CUTPASTE
1378 options SC_NO_FONT_LOADING
1379 options SC_NO_HISTORY
1380 options SC_NO_MODE_CHANGE
1381 options SC_NO_SYSMOUSE
1382 options SC_NO_SUSPEND_VTYSWITCH
1385 # 0x80 Put the video card in the VESA 800x600 dots, 16 color mode
1386 # 0x100 Probe for a keyboard device periodically if one is not present
1393 # SCSI host adapters:
1395 # adv: All Narrow SCSI bus AdvanSys controllers.
1396 # adw: Second Generation AdvanSys controllers including the ADV940UW.
1397 # aha: Adaptec 154x/1535/1640
1398 # ahb: Adaptec 174x EISA controllers
1399 # ahc: Adaptec 274x/284x/2910/293x/294x/394x/3950x/3960x/398X/4944/
1400 # 19160x/29160x, aic7770/aic78xx
1401 # ahd: Adaptec 29320/39320 Controllers.
1402 # aic: Adaptec 6260/6360, APA-1460 (PC Card), NEC PC9801-100 (C-BUS)
1403 # amd: Support for the AMD 53C974 SCSI host adapter chip as found on devices
1404 # such as the Tekram DC-390(T).
1405 # bt: Most Buslogic controllers: including BT-445, BT-54x, BT-64x, BT-74x,
1406 # BT-75x, BT-946, BT-948, BT-956, BT-958, SDC3211B, SDC3211F, SDC3222F
1407 # esp: NCR53c9x. Only for SBUS hardware right now.
1408 # isp: Qlogic ISP 1020, 1040 and 1040B PCI SCSI host adapters,
1409 # ISP 1240 Dual Ultra SCSI, ISP 1080 and 1280 (Dual) Ultra2,
1410 # ISP 12160 Ultra3 SCSI,
1411 # Qlogic ISP 2100 and ISP 2200 1Gb Fibre Channel host adapters.
1412 # Qlogic ISP 2300 and ISP 2312 2Gb Fibre Channel host adapters.
1413 # Qlogic ISP 2322 and ISP 6322 2Gb Fibre Channel host adapters.
1414 # ispfw: Firmware module for Qlogic host adapters
1415 # mpt: LSI-Logic MPT/Fusion 53c1020 or 53c1030 Ultra4
1416 # or FC9x9 Fibre Channel host adapters.
1417 # ncr: NCR 53C810, 53C825 self-contained SCSI host adapters.
1418 # sym: Symbios/Logic 53C8XX family of PCI-SCSI I/O processors:
1419 # 53C810, 53C810A, 53C815, 53C825, 53C825A, 53C860, 53C875,
1420 # 53C876, 53C885, 53C895, 53C895A, 53C896, 53C897, 53C1510D,
1421 # 53C1010-33, 53C1010-66.
1422 # trm: Tekram DC395U/UW/F DC315U adapters.
1426 # Note that the order is important in order for Buslogic ISA/EISA cards to be
1431 hint.bt.0.port="0x330"
1444 device iscsi_initiator
1446 hint.isp.0.disable="1"
1448 hint.isp.0.prefer_iomap="1"
1449 hint.isp.0.prefer_memmap="1"
1450 hint.isp.0.fwload_disable="1"
1451 hint.isp.0.ignore_nvram="1"
1452 hint.isp.0.fullduplex="1"
1453 hint.isp.0.topology="lport"
1454 hint.isp.0.topology="nport"
1455 hint.isp.0.topology="lport-only"
1456 hint.isp.0.topology="nport-only"
1457 # we can't get u_int64_t types, nor can we get strings if it's got
1458 # a leading 0x, hence this silly dodge.
1459 hint.isp.0.portwnn="w50000000aaaa0000"
1460 hint.isp.0.nodewnn="w50000000aaaa0001"
1468 hint.wds.0.port="0x350"
1472 # The aic7xxx driver will attempt to use memory mapped I/O for all PCI
1473 # controllers that have it configured only if this option is set. Unfortunately,
1474 # this doesn't work on some motherboards, which prevents it from being the
1476 options AHC_ALLOW_MEMIO
1478 # Dump the contents of the ahc controller configuration PROM.
1479 options AHC_DUMP_EEPROM
1481 # Bitmap of units to enable targetmode operations.
1482 options AHC_TMODE_ENABLE
1484 # Compile in Aic7xxx Debugging code.
1487 # Aic7xxx driver debugging options. See sys/dev/aic7xxx/aic7xxx.h
1488 options AHC_DEBUG_OPTS
1490 # Print register bitfields in debug output. Adds ~128k to driver
1492 options AHC_REG_PRETTY_PRINT
1494 # Compile in aic79xx debugging code.
1497 # Aic79xx driver debugging options. Adds ~215k to driver. See ahd(4).
1498 options AHD_DEBUG_OPTS=0xFFFFFFFF
1500 # Print human-readable register definitions when debugging
1501 options AHD_REG_PRETTY_PRINT
1503 # Bitmap of units to enable targetmode operations.
1504 options AHD_TMODE_ENABLE
1506 # The adw driver will attempt to use memory mapped I/O for all PCI
1507 # controllers that have it configured only if this option is set.
1508 options ADW_ALLOW_MEMIO
1510 # Options used in dev/iscsi (Software iSCSI stack)
1512 options ISCSI_INITIATOR_DEBUG=9
1514 # Options used in dev/isp/ (Qlogic SCSI/FC driver).
1516 # ISP_TARGET_MODE - enable target mode operation
1518 options ISP_TARGET_MODE=1
1520 # ISP_DEFAULT_ROLES - default role
1524 # both=3 (not supported currently)
1526 options ISP_DEFAULT_ROLES=2
1528 # Options used in dev/sym/ (Symbios SCSI driver).
1529 #options SYM_SETUP_LP_PROBE_MAP #-Low Priority Probe Map (bits)
1530 # Allows the ncr to take precedence
1531 # 1 (1<<0) -> 810a, 860
1532 # 2 (1<<1) -> 825a, 875, 885, 895
1533 # 4 (1<<2) -> 895a, 896, 1510d
1534 #options SYM_SETUP_SCSI_DIFF #-HVD support for 825a, 875, 885
1535 # disabled:0 (default), enabled:1
1536 #options SYM_SETUP_PCI_PARITY #-PCI parity checking
1537 # disabled:0, enabled:1 (default)
1538 #options SYM_SETUP_MAX_LUN #-Number of LUNs supported
1539 # default:8, range:[1..64]
1541 # The 'dpt' driver provides support for old DPT controllers (http://www.dpt.com/).
1542 # These have hardware RAID-{0,1,5} support, and do multi-initiator I/O.
1543 # The DPT controllers are commonly re-licensed under other brand-names -
1544 # some controllers by Olivetti, Dec, HP, AT&T, SNI, AST, Alphatronic, NEC and
1545 # Compaq are actually DPT controllers.
1547 # See src/sys/dev/dpt for debugging and other subtle options.
1548 # DPT_MEASURE_PERFORMANCE Enables a set of (semi)invasive metrics. Various
1549 # instruments are enabled. The tools in
1550 # /usr/sbin/dpt_* assume these to be enabled.
1551 # DPT_HANDLE_TIMEOUTS Normally device timeouts are handled by the DPT.
1552 # If you ant the driver to handle timeouts, enable
1553 # this option. If your system is very busy, this
1554 # option will create more trouble than solve.
1555 # DPT_TIMEOUT_FACTOR Used to compute the excessive amount of time to
1556 # wait when timing out with the above option.
1557 # DPT_DEBUG_xxxx These are controllable from sys/dev/dpt/dpt.h
1558 # DPT_LOST_IRQ When enabled, will try, once per second, to catch
1559 # any interrupt that got lost. Seems to help in some
1560 # DPT-firmware/Motherboard combinations. Minimal
1561 # cost, great benefit.
1562 # DPT_RESET_HBA Make "reset" actually reset the controller
1563 # instead of fudging it. Only enable this if you
1564 # are 100% certain you need it.
1569 #!CAM# options DPT_MEASURE_PERFORMANCE
1570 #!CAM# options DPT_HANDLE_TIMEOUTS
1571 options DPT_TIMEOUT_FACTOR=4
1572 options DPT_LOST_IRQ
1573 options DPT_RESET_HBA
1576 # Compaq "CISS" RAID controllers (SmartRAID 5* series)
1577 # These controllers have a SCSI-like interface, and require the
1578 # CAM infrastructure.
1583 # Intel Integrated RAID controllers.
1584 # This driver was developed and is maintained by Intel. Contacts
1585 # at Intel for this driver are
1586 # "Kannanthanam, Boji T" <boji.t.kannanthanam@intel.com> and
1587 # "Leubner, Achim" <achim.leubner@intel.com>.
1592 # Mylex AcceleRAID and eXtremeRAID controllers with v6 and later
1593 # firmware. These controllers have a SCSI-like interface, and require
1594 # the CAM infrastructure.
1599 # Compaq Smart RAID, Mylex DAC960 and AMI MegaRAID controllers. Only
1600 # one entry is needed; the code will find and configure all supported
1603 device ida # Compaq Smart RAID
1604 device mlx # Mylex DAC960
1605 device amr # AMI MegaRAID
1606 device mfi # LSI MegaRAID SAS
1607 device mfip # LSI MegaRAID SAS passthrough, requires CAM
1613 device twe # 3ware ATA RAID
1616 # The 'ATA' driver supports all ATA and ATAPI devices, including PC Card
1617 # devices. You only need one "device ata" for it to find all
1618 # PCI and PC Card ATA/ATAPI devices on modern machines.
1620 device atadisk # ATA disk drives
1621 device ataraid # ATA RAID drives
1622 device atapicd # ATAPI CDROM drives
1623 device atapifd # ATAPI floppy drives
1624 device atapist # ATAPI tape drives
1625 device atapicam # emulate ATAPI devices as SCSI ditto via CAM
1626 # needs CAM to be present (scbus & pass)
1628 # For older non-PCI, non-PnPBIOS systems, these are the hints lines to add:
1630 hint.ata.0.port="0x1f0"
1633 hint.ata.1.port="0x170"
1637 # The following options are valid on the ATA driver:
1639 # ATA_STATIC_ID: controller numbering is static ie depends on location
1640 # else the device numbers are dynamically allocated.
1642 options ATA_STATIC_ID
1645 # Standard floppy disk controllers and floppy tapes, supports
1646 # the Y-E DATA External FDD (PC Card)
1650 hint.fdc.0.port="0x3F0"
1654 # FDC_DEBUG enables floppy debugging. Since the debug output is huge, you
1655 # gotta turn it actually on by setting the variable fd_debug with DDB,
1659 # Activate this line if you happen to have an Insight floppy tape.
1660 # Probing them proved to be dangerous for people with floppy disks only,
1661 # so it's "hidden" behind a flag:
1662 #hint.fdc.0.flags="1"
1664 # Specify floppy devices
1671 # uart: newbusified driver for serial interfaces. It consolidates the sio(4),
1672 # sab(4) and zs(4) drivers.
1676 # Options for uart(4)
1677 options UART_PPS_ON_CTS # Do time pulse capturing using CTS
1680 # The following hint should only be used for pure ISA devices. It is not
1681 # needed otherwise. Use of hints is strongly discouraged.
1682 hint.uart.0.at="isa"
1684 # The following 3 hints are used when the UART is a system device (i.e., a
1685 # console or debug port), but only on platforms that don't have any other
1686 # means to pass the information to the kernel. The unit number of the hint
1687 # is only used to bundle the hints together. There is no relation to the
1688 # unit number of the probed UART.
1689 hint.uart.0.port="0x3f8"
1690 hint.uart.0.flags="0x10"
1691 hint.uart.0.baud="115200"
1693 # `flags' for serial drivers that support consoles like sio(4) and uart(4):
1694 # 0x10 enable console support for this unit. Other console flags
1695 # (if applicable) are ignored unless this is set. Enabling
1696 # console support does not make the unit the preferred console.
1697 # Boot with -h or set boot_serial=YES in the loader. For sio(4)
1698 # specifically, the 0x20 flag can also be set (see above).
1699 # Currently, at most one unit can have console support; the
1700 # first one (in config file order) with this flag set is
1701 # preferred. Setting this flag for sio0 gives the old behaviour.
1702 # 0x80 use this port for serial line gdb support in ddb. Also known
1706 # Options for serial drivers that support consoles:
1707 options BREAK_TO_DEBUGGER # A BREAK on a serial console goes to
1708 # ddb, if available.
1710 # Solaris implements a new BREAK which is initiated by a character
1711 # sequence CR ~ ^b which is similar to a familiar pattern used on
1712 # Sun servers by the Remote Console.
1713 options ALT_BREAK_TO_DEBUGGER
1715 # Serial Communications Controller
1716 # Supports the Siemens SAB 82532 and Zilog Z8530 multi-channel
1717 # communications controllers.
1720 # PCI Universal Communications driver
1721 # Supports various multi port PCI I/O cards.
1725 # Network interfaces:
1727 # MII bus support is required for some PCI 10/100 ethernet NICs,
1728 # namely those which use MII-compliant transceivers or implement
1729 # transceiver control interfaces that operate like an MII. Adding
1730 # "device miibus0" to the kernel config pulls in support for
1731 # the generic miibus API and all of the PHY drivers, including a
1732 # generic one for PHYs that aren't specifically handled by an
1733 # individual driver.
1736 # an: Aironet 4500/4800 802.11 wireless adapters. Supports the PCMCIA,
1737 # PCI and ISA varieties.
1738 # awi: Support for IEEE 802.11 PC Card devices using the AMD Am79C930 and
1739 # Harris (Intersil) Chipset with PCnetMobile firmware by AMD.
1740 # bce: Broadcom NetXtreme II (BCM5706/BCM5708) PCI/PCIe Gigabit Ethernet
1742 # bfe: Broadcom BCM4401 Ethernet adapter.
1743 # bge: Support for gigabit ethernet adapters based on the Broadcom
1744 # BCM570x family of controllers, including the 3Com 3c996-T,
1745 # the Netgear GA302T, the SysKonnect SK-9D21 and SK-9D41, and
1746 # the embedded gigE NICs on Dell PowerEdge 2550 servers.
1747 # cm: Arcnet SMC COM90c26 / SMC COM90c56
1748 # (and SMC COM90c66 in '56 compatibility mode) adapters.
1749 # cnw: Xircom CNW/Netware Airsurfer PC Card adapter
1750 # dc: Support for PCI fast ethernet adapters based on the DEC/Intel 21143
1751 # and various workalikes including:
1752 # the ADMtek AL981 Comet and AN985 Centaur, the ASIX Electronics
1753 # AX88140A and AX88141, the Davicom DM9100 and DM9102, the Lite-On
1754 # 82c168 and 82c169 PNIC, the Lite-On/Macronix LC82C115 PNIC II
1755 # and the Macronix 98713/98713A/98715/98715A/98725 PMAC. This driver
1756 # replaces the old al, ax, dm, pn and mx drivers. List of brands:
1757 # Digital DE500-BA, Kingston KNE100TX, D-Link DFE-570TX, SOHOware SFA110,
1758 # SVEC PN102-TX, CNet Pro110B, 120A, and 120B, Compex RL100-TX,
1759 # LinkSys LNE100TX, LNE100TX V2.0, Jaton XpressNet, Alfa Inc GFC2204,
1761 # de: Digital Equipment DC21040
1762 # em: Intel Pro/1000 Gigabit Ethernet 82542, 82543, 82544 based adapters.
1763 # ep: 3Com 3C509, 3C529, 3C556, 3C562D, 3C563D, 3C572, 3C574X, 3C579, 3C589
1764 # and PC Card devices using these chipsets.
1765 # ex: Intel EtherExpress Pro/10 and other i82595-based adapters,
1766 # Olicom Ethernet PC Card devices.
1767 # fe: Fujitsu MB86960A/MB86965A Ethernet
1768 # fea: DEC DEFEA EISA FDDI adapter
1769 # fpa: Support for the Digital DEFPA PCI FDDI. `device fddi' is also needed.
1770 # fxp: Intel EtherExpress Pro/100B
1771 # (hint of prefer_iomap can be done to prefer I/O instead of Mem mapping)
1772 # hme: Sun HME (Happy Meal Ethernet)
1773 # le: AMD Am7900 LANCE and Am79C9xx PCnet
1774 # lge: Support for PCI gigabit ethernet adapters based on the Level 1
1775 # LXT1001 NetCellerator chipset. This includes the D-Link DGE-500SX,
1776 # SMC TigerCard 1000 (SMC9462SX), and some Addtron cards.
1777 # msk: Support for gigabit ethernet adapters based on the Marvell/SysKonnect
1778 # Yukon II Gigabit controllers, including 88E8021, 88E8022, 88E8061,
1779 # 88E8062, 88E8035, 88E8036, 88E8038, 88E8050, 88E8052, 88E8053,
1780 # 88E8055, 88E8056 and D-Link 560T/550SX.
1781 # lmc: Support for the LMC/SBE wide-area network interface cards.
1782 # my: Myson Fast Ethernet (MTD80X, MTD89X)
1783 # nge: Support for PCI gigabit ethernet adapters based on the National
1784 # Semiconductor DP83820 and DP83821 chipset. This includes the
1785 # SMC EZ Card 1000 (SMC9462TX), D-Link DGE-500T, Asante FriendlyNet
1786 # GigaNIX 1000TA and 1000TPC, the Addtron AEG320T, the Surecom
1787 # EP-320G-TX and the Netgear GA622T.
1788 # pcn: Support for PCI fast ethernet adapters based on the AMD Am79c97x
1789 # PCnet-FAST, PCnet-FAST+, PCnet-FAST III, PCnet-PRO and PCnet-Home
1790 # chipsets. These can also be handled by the le(4) driver if the
1791 # pcn(4) driver is left out of the kernel. The le(4) driver does not
1792 # support the additional features like the MII bus and burst mode of
1793 # the PCnet-FAST and greater chipsets though.
1794 # rl: Support for PCI fast ethernet adapters based on the RealTek 8129/8139
1795 # chipset. Note that the RealTek driver defaults to using programmed
1796 # I/O to do register accesses because memory mapped mode seems to cause
1797 # severe lockups on SMP hardware. This driver also supports the
1798 # Accton EN1207D `Cheetah' adapter, which uses a chip called
1799 # the MPX 5030/5038, which is either a RealTek in disguise or a
1800 # RealTek workalike. Note that the D-Link DFE-530TX+ uses the RealTek
1801 # chipset and is supported by this driver, not the 'vr' driver.
1802 # sf: Support for Adaptec Duralink PCI fast ethernet adapters based on the
1803 # Adaptec AIC-6915 "starfire" controller.
1804 # This includes dual and quad port cards, as well as one 100baseFX card.
1805 # Most of these are 64-bit PCI devices, except for one single port
1806 # card which is 32-bit.
1807 # sis: Support for NICs based on the Silicon Integrated Systems SiS 900,
1808 # SiS 7016 and NS DP83815 PCI fast ethernet controller chips.
1809 # sbsh: Support for Granch SBNI16 SHDSL modem PCI adapters
1810 # sk: Support for the SysKonnect SK-984x series PCI gigabit ethernet NICs.
1811 # This includes the SK-9841 and SK-9842 single port cards (single mode
1812 # and multimode fiber) and the SK-9843 and SK-9844 dual port cards
1813 # (also single mode and multimode).
1814 # The driver will autodetect the number of ports on the card and
1815 # attach each one as a separate network interface.
1816 # sn: Support for ISA and PC Card Ethernet devices using the
1817 # SMC91C90/92/94/95 chips.
1818 # ste: Sundance Technologies ST201 PCI fast ethernet controller, includes
1819 # the D-Link DFE-550TX.
1820 # stge: Support for gigabit ethernet adapters based on the Sundance/Tamarack
1821 # TC9021 family of controllers, including the Sundance ST2021/ST2023,
1822 # the Sundance/Tamarack TC9021, the D-Link DL-4000 and ASUS NX1101.
1823 # ti: Support for PCI gigabit ethernet NICs based on the Alteon Networks
1824 # Tigon 1 and Tigon 2 chipsets. This includes the Alteon AceNIC, the
1825 # 3Com 3c985, the Netgear GA620 and various others. Note that you will
1826 # probably want to bump up kern.ipc.nmbclusters a lot to use this driver.
1827 # tl: Support for the Texas Instruments TNETE100 series 'ThunderLAN'
1828 # cards and integrated ethernet controllers. This includes several
1829 # Compaq Netelligent 10/100 cards and the built-in ethernet controllers
1830 # in several Compaq Prosignia, Proliant and Deskpro systems. It also
1831 # supports several Olicom 10Mbps and 10/100 boards.
1832 # tx: SMC 9432 TX, BTX and FTX cards. (SMC EtherPower II series)
1833 # txp: Support for 3Com 3cR990 cards with the "Typhoon" chipset
1834 # vr: Support for various fast ethernet adapters based on the VIA
1835 # Technologies VT3043 `Rhine I' and VT86C100A `Rhine II' chips,
1836 # including the D-Link DFE530TX (see 'rl' for DFE530TX+), the Hawking
1837 # Technologies PN102TX, and the AOpen/Acer ALN-320.
1838 # vx: 3Com 3C590 and 3C595
1839 # wb: Support for fast ethernet adapters based on the Winbond W89C840F chip.
1840 # Note: this is not the same as the Winbond W89C940F, which is a
1842 # wi: Lucent WaveLAN/IEEE 802.11 PCMCIA adapters. Note: this supports both
1843 # the PCMCIA and ISA cards: the ISA card is really a PCMCIA to ISA
1844 # bridge with a PCMCIA adapter plugged into it.
1845 # xe: Xircom/Intel EtherExpress Pro100/16 PC Card ethernet controller,
1846 # Accton Fast EtherCard-16, Compaq Netelligent 10/100 PC Card,
1847 # Toshiba 10/100 Ethernet PC Card, Xircom 16-bit Ethernet + Modem 56
1848 # xl: Support for the 3Com 3c900, 3c905, 3c905B and 3c905C (Fast)
1849 # Etherlink XL cards and integrated controllers. This includes the
1850 # integrated 3c905B-TX chips in certain Dell Optiplex and Dell
1851 # Precision desktop machines and the integrated 3c905-TX chips
1852 # in Dell Latitude laptop docking stations.
1853 # Also supported: 3Com 3c980(C)-TX, 3Com 3cSOHO100-TX, 3Com 3c450-TX
1855 # Order for ISA/EISA devices is important here
1859 hint.cm.0.port="0x2e0"
1861 hint.cm.0.maddr="0xdc000"
1866 hint.fe.0.port="0x300"
1870 hint.sn.0.port="0x300"
1878 # PCI Ethernet NICs that use the common MII bus controller code.
1879 device bce # Broadcom BCM5706/BCM5708 Gigabit Ethernet
1880 device bfe # Broadcom BCM440x 10/100 Ethernet
1881 device bge # Broadcom BCM570xx Gigabit Ethernet
1882 device cxgb # Chelsio T3 10 Gigabit Ethernet
1883 device dc # DEC/Intel 21143 and various workalikes
1884 device fxp # Intel EtherExpress PRO/100B (82557, 82558)
1885 hint.fxp.0.prefer_iomap="0"
1886 device hme # Sun HME (Happy Meal Ethernet)
1887 device lge # Level 1 LXT1001 gigabit Ethernet
1888 device my # Myson Fast Ethernet (MTD80X, MTD89X)
1889 device nge # NatSemi DP83820 gigabit Ethernet
1890 device rl # RealTek 8129/8139
1891 device pcn # AMD Am79C97x PCI 10/100 NICs
1892 device sf # Adaptec AIC-6915 (``Starfire'')
1893 device sbsh # Granch SBNI16 SHDSL modem
1894 device sis # Silicon Integrated Systems SiS 900/SiS 7016
1895 device sk # SysKonnect SK-984x & SK-982x gigabit Ethernet
1896 device ste # Sundance ST201 (D-Link DFE-550TX)
1897 device ti # Alteon Networks Tigon I/II gigabit Ethernet
1898 device tl # Texas Instruments ThunderLAN
1899 device tx # SMC EtherPower II (83c170 ``EPIC'')
1900 device vr # VIA Rhine, Rhine II
1901 device wb # Winbond W89C840F
1902 device xl # 3Com 3c90x (``Boomerang'', ``Cyclone'')
1904 # PCI Ethernet NICs.
1905 device de # DEC/Intel DC21x4x (``Tulip'')
1906 device le # AMD Am7900 LANCE and Am79C9xx PCnet
1907 device mxge # Myricom Myri-10G 10GbE NIC
1908 device nxge # Neterion Xframe 10GbE Server/Storage Adapter
1909 device txp # 3Com 3cR990 (``Typhoon'')
1910 device vx # 3Com 3c590, 3c595 (``Vortex'')
1918 # Use "private" jumbo buffers allocated exclusively for the ti(4) driver.
1919 # This option is incompatible with the TI_JUMBO_HDRSPLIT option below.
1920 #options TI_PRIVATE_JUMBOS
1921 # Turn on the header splitting option for the ti(4) driver firmware. This
1922 # only works for Tigon II chips, and has no effect for Tigon I chips.
1923 options TI_JUMBO_HDRSPLIT
1925 # These two options allow manipulating the mbuf cluster size and mbuf size,
1926 # respectively. Be very careful with NIC driver modules when changing
1927 # these from their default values, because that can potentially cause a
1928 # mismatch between the mbuf size assumed by the kernel and the mbuf size
1929 # assumed by a module. The only driver that currently has the ability to
1930 # detect a mismatch is ti(4).
1931 options MCLSHIFT=12 # mbuf cluster shift in bits, 12 == 4KB
1932 options MSIZE=512 # mbuf size in bytes
1935 # ATM related options (Cranor version)
1936 # (note: this driver cannot be used with the HARP ATM stack)
1938 # The `en' device provides support for Efficient Networks (ENI)
1939 # ENI-155 PCI midway cards, and the Adaptec 155Mbps PCI ATM cards (ANA-59x0).
1941 # The `hatm' device provides support for Fore/Marconi HE155 and HE622
1944 # The `fatm' device provides support for Fore PCA200E ATM PCI cards.
1946 # The `patm' device provides support for IDT77252 based cards like
1947 # ProSum's ProATM-155 and ProATM-25 and IDT's evaluation boards.
1949 # atm device provides generic atm functions and is required for
1951 # NATM enables the netnatm protocol family that can be used to
1954 # utopia provides the access to the ATM PHY chips and is required for en,
1957 # the current driver supports only PVC operations (no atm-arp, no multicast).
1958 # for more details, please read the original documents at
1959 # http://www.ccrc.wustl.edu/pub/chuck/tech/bsdatm/bsdatm.html
1963 device fatm #Fore PCA200E
1964 device hatm #Fore/Marconi HE155/622
1965 device patm #IDT77252 cards (ProATM and IDT)
1966 device utopia #ATM PHY driver
1967 options NATM #native ATM
1969 options LIBMBPOOL #needed by patm, iatm
1974 # sound: The generic sound driver.
1980 # snd_*: Device-specific drivers.
1982 # The flags of the device tells the device a bit more info about the
1983 # device that normally is obtained through the PnP interface.
1984 # bit 2..0 secondary DMA channel;
1985 # bit 4 set if the board uses two dma channels;
1986 # bit 15..8 board type, overrides autodetection; leave it
1987 # zero if don't know what to put in (and you don't,
1988 # since this is unsupported at the moment...).
1990 # snd_ad1816: Analog Devices AD1816 ISA PnP/non-PnP.
1991 # snd_als4000: Avance Logic ALS4000 PCI.
1992 # snd_atiixp: ATI IXP 200/300/400 PCI.
1993 # snd_au88x0 Aureal Vortex 1/2/Advantage PCI. This driver
1994 # lacks support for playback and recording.
1995 # snd_audiocs: Crystal Semiconductor CS4231 SBus/EBus. Only
1997 # snd_cmi: CMedia CMI8338/CMI8738 PCI.
1998 # snd_cs4281: Crystal Semiconductor CS4281 PCI.
1999 # snd_csa: Crystal Semiconductor CS461x/428x PCI. (except
2001 # snd_ds1: Yamaha DS-1 PCI.
2002 # snd_emu10k1: Creative EMU10K1 PCI and EMU10K2 (Audigy) PCI.
2003 # snd_emu10kx: Creative SoundBlaster Live! and Audigy
2004 # snd_envy24: VIA Envy24 and compatible, needs snd_spicds.
2005 # snd_envy24ht: VIA Envy24HT and compatible, needs snd_spicds.
2006 # snd_es137x: Ensoniq AudioPCI ES137x PCI.
2007 # snd_ess: Ensoniq ESS ISA PnP/non-PnP, to be used in
2008 # conjunction with snd_sbc.
2009 # snd_fm801: Forte Media FM801 PCI.
2010 # snd_gusc: Gravis UltraSound ISA PnP/non-PnP.
2011 # snd_hda: Intel High Definition Audio (Controller) and
2013 # snd_ich: Intel ICH PCI and some more audio controllers
2014 # embedded in a chipset, for example nVidia
2015 # nForce controllers.
2016 # snd_maestro: ESS Technology Maestro-1/2x PCI.
2017 # snd_maestro3: ESS Technology Maestro-3/Allegro PCI.
2018 # snd_mss: Microsoft Sound System ISA PnP/non-PnP.
2019 # snd_neomagic: Neomagic 256 AV/ZX PCI.
2020 # snd_sb16: Creative SoundBlaster16, to be used in
2021 # conjunction with snd_sbc.
2022 # snd_sb8: Creative SoundBlaster (pre-16), to be used in
2023 # conjunction with snd_sbc.
2024 # snd_sbc: Creative SoundBlaster ISA PnP/non-PnP.
2025 # Supports ESS and Avance ISA chips as well.
2026 # snd_spicds: SPI codec driver, needed by Envy24/Envy24HT drivers.
2027 # snd_solo: ESS Solo-1x PCI.
2028 # snd_t4dwave: Trident 4DWave DX/NX PCI, Sis 7018 PCI and Acer Labs
2030 # snd_via8233: VIA VT8233x PCI.
2031 # snd_via82c686: VIA VT82C686A PCI.
2032 # snd_vibes: S3 Sonicvibes PCI.
2033 # snd_uaudio: USB audio.
2065 device snd_via82c686
2069 # For non-PnP sound cards:
2073 hint.pcm.0.flags="0x0"
2075 hint.sbc.0.port="0x220"
2078 hint.sbc.0.flags="0x15"
2079 hint.gusc.0.at="isa"
2080 hint.gusc.0.port="0x220"
2083 hint.gusc.0.flags="0x13"
2086 # IEEE-488 hardware:
2087 # pcii: PCIIA cards (uPD7210 based isa cards)
2088 # tnt4882: National Instruments PCI-GPIB card.
2091 hint.pcii.0.at="isa"
2092 hint.pcii.0.port="0x2e1"
2099 # Miscellaneous hardware:
2101 # scd: Sony CD-ROM using proprietary (non-ATAPI) interface
2102 # mcd: Mitsumi CD-ROM using proprietary (non-ATAPI) interface
2103 # bktr: Brooktree bt848/848a/849a/878/879 video capture and TV Tuner board
2104 # cy: Cyclades serial driver
2105 # joy: joystick (including IO DATA PCJOY PC Card joystick)
2106 # rc: RISCom/8 multiport card
2107 # rp: Comtrol Rocketport(ISA/PCI) - single card
2108 # si: Specialix SI/XIO 4-32 port terminal multiplexor
2110 # Notes on the Comtrol Rocketport driver:
2112 # The exact values used for rp0 depend on how many boards you have
2113 # in the system. The manufacturer's sample configs are listed as:
2115 # device rp # core driver support
2117 # Comtrol Rocketport ISA single card
2118 # hint.rp.0.at="isa"
2119 # hint.rp.0.port="0x280"
2121 # If instead you have two ISA cards, one installed at 0x100 and the
2122 # second installed at 0x180, then you should add the following to
2123 # your kernel probe hints:
2124 # hint.rp.0.at="isa"
2125 # hint.rp.0.port="0x100"
2126 # hint.rp.1.at="isa"
2127 # hint.rp.1.port="0x180"
2129 # For 4 ISA cards, it might be something like this:
2130 # hint.rp.0.at="isa"
2131 # hint.rp.0.port="0x180"
2132 # hint.rp.1.at="isa"
2133 # hint.rp.1.port="0x100"
2134 # hint.rp.2.at="isa"
2135 # hint.rp.2.port="0x340"
2136 # hint.rp.3.at="isa"
2137 # hint.rp.3.port="0x240"
2139 # For PCI cards, you need no hints.
2144 hint.mcd.0.port="0x300"
2145 # for the Sony CDU31/33A CDROM
2148 hint.scd.0.port="0x230"
2149 device joy # PnP aware, hints for non-PnP only
2151 hint.joy.0.port="0x201"
2154 hint.rc.0.port="0x220"
2158 hint.rp.0.port="0x280"
2162 hint.si.0.maddr="0xd0000"
2166 # The 'bktr' device is a PCI video capture device using the Brooktree
2167 # bt848/bt848a/bt849a/bt878/bt879 chipset. When used with a TV Tuner it forms a
2168 # TV card, e.g. Miro PC/TV, Hauppauge WinCast/TV WinTV, VideoLogic Captivator,
2169 # Intel Smart Video III, AverMedia, IMS Turbo, FlyVideo.
2171 # options OVERRIDE_CARD=xxx
2172 # options OVERRIDE_TUNER=xxx
2173 # options OVERRIDE_MSP=1
2174 # options OVERRIDE_DBX=1
2175 # These options can be used to override the auto detection
2176 # The current values for xxx are found in src/sys/dev/bktr/bktr_card.h
2177 # Using sysctl(8) run-time overrides on a per-card basis can be made
2179 # options BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_PAL
2181 # options BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_NTSC
2182 # Specifies the default video capture mode.
2183 # This is required for Dual Crystal (28&35Mhz) boards where PAL is used
2184 # to prevent hangs during initialisation, e.g. VideoLogic Captivator PCI.
2186 # options BKTR_USE_PLL
2187 # This is required for PAL or SECAM boards with a 28Mhz crystal and no 35Mhz
2188 # crystal, e.g. some new Bt878 cards.
2190 # options BKTR_GPIO_ACCESS
2191 # This enable IOCTLs which give user level access to the GPIO port.
2193 # options BKTR_NO_MSP_RESET
2194 # Prevents the MSP34xx reset. Good if you initialise the MSP in another OS first
2196 # options BKTR_430_FX_MODE
2197 # Switch Bt878/879 cards into Intel 430FX chipset compatibility mode.
2199 # options BKTR_SIS_VIA_MODE
2200 # Switch Bt878/879 cards into SIS/VIA chipset compatibility mode which is
2201 # needed for some old SiS and VIA chipset motherboards.
2202 # This also allows Bt878/879 chips to work on old OPTi (<1997) chipset
2203 # motherboards and motherboards with bad or incomplete PCI 2.1 support.
2204 # As a rough guess, old = before 1998
2206 # options BKTR_NEW_MSP34XX_DRIVER
2207 # Use new, more complete initialization scheme for the msp34* soundchip.
2208 # Should fix stereo autodetection if the old driver does only output
2212 # options BKTR_USE_FREEBSD_SMBUS
2213 # Compile with FreeBSD SMBus implementation
2215 # Brooktree driver has been ported to the new I2C framework. Thus,
2216 # you'll need to have the following 3 lines in the kernel config.
2221 # The iic and smb devices are only needed if you want to control other
2222 # I2C slaves connected to the external connector of some cards.
2227 # PC Card/PCMCIA and Cardbus
2229 # pccbb: pci/cardbus bridge implementing YENTA interface
2230 # pccard: pccard slots
2231 # cardbus: cardbus slots
2239 # System Management Bus support is provided by the 'smbus' device.
2240 # Access to the SMBus device is via the 'smb' device (/dev/smb*),
2241 # which is a child of the 'smbus' device.
2243 # Supported devices:
2244 # smb standard I/O through /dev/smb*
2246 # Supported SMB interfaces:
2247 # iicsmb I2C to SMB bridge with any iicbus interface
2248 # bktr brooktree848 I2C hardware interface
2249 # intpm Intel PIIX4 (82371AB, 82443MX) Power Management Unit
2250 # alpm Acer Aladdin-IV/V/Pro2 Power Management Unit
2251 # ichsmb Intel ICH SMBus controller chips (82801AA, 82801AB, 82801BA)
2252 # viapm VIA VT82C586B/596B/686A and VT8233 Power Management Unit
2253 # amdpm AMD 756 Power Management Unit
2254 # amdsmb AMD 8111 SMBus 2.0 Controller
2255 # nfpm NVIDIA nForce Power Management Unit
2256 # nfsmb NVIDIA nForce2/3/4 MCP SMBus 2.0 Controller
2258 device smbus # Bus support, required for smb below.
2274 # Philips i2c bus support is provided by the `iicbus' device.
2276 # Supported devices:
2277 # ic i2c network interface
2278 # iic i2c standard io
2279 # iicsmb i2c to smb bridge. Allow i2c i/o with smb commands.
2281 # Supported interfaces:
2282 # bktr brooktree848 I2C software interface
2285 # iicbb generic I2C bit-banging code (needed by lpbb, bktr)
2287 device iicbus # Bus support, required for ic/iic/iicsmb below.
2292 device iicsmb # smb over i2c bridge
2296 # Parallel port bus support is provided by the `ppbus' device.
2297 # Multiple devices may be attached to the parallel port, devices
2298 # are automatically probed and attached when found.
2300 # Supported devices:
2301 # vpo Iomega Zip Drive
2302 # Requires SCSI disk support ('scbus' and 'da'), best
2303 # performance is achieved with ports in EPP 1.9 mode.
2304 # lpt Parallel Printer
2305 # plip Parallel network interface
2306 # ppi General-purpose I/O ("Geek Port") + IEEE1284 I/O
2307 # pps Pulse per second Timing Interface
2308 # lpbb Philips official parallel port I2C bit-banging interface
2310 # Supported interfaces:
2311 # ppc ISA-bus parallel port interfaces.
2314 options PPC_PROBE_CHIPSET # Enable chipset specific detection
2315 # (see flags in ppc(4))
2316 options DEBUG_1284 # IEEE1284 signaling protocol debug
2317 options PERIPH_1284 # Makes your computer act as an IEEE1284
2318 # compliant peripheral
2319 options DONTPROBE_1284 # Avoid boot detection of PnP parallel devices
2320 options VP0_DEBUG # ZIP/ZIP+ debug
2321 options LPT_DEBUG # Printer driver debug
2322 options PPC_DEBUG # Parallel chipset level debug
2323 options PLIP_DEBUG # Parallel network IP interface debug
2324 options PCFCLOCK_VERBOSE # Verbose pcfclock driver
2325 options PCFCLOCK_MAX_RETRIES=5 # Maximum read tries (default 10)
2339 # Kernel BOOTP support
2341 options BOOTP # Use BOOTP to obtain IP address/hostname
2342 # Requires NFSCLIENT and NFS_ROOT
2343 options BOOTP_NFSROOT # NFS mount root filesystem using BOOTP info
2344 options BOOTP_NFSV3 # Use NFS v3 to NFS mount root
2345 options BOOTP_COMPAT # Workaround for broken bootp daemons.
2346 options BOOTP_WIRED_TO=fxp0 # Use interface fxp0 for BOOTP
2349 # Add software watchdog routines.
2354 # Disable swapping of stack pages. This option removes all
2355 # code which actually performs swapping, so it's not possible to turn
2356 # it back on at run-time.
2358 # This is sometimes usable for systems which don't have any swap space
2359 # (see also sysctls "vm.defer_swapspace_pageouts" and
2360 # "vm.disable_swapspace_pageouts")
2362 #options NO_SWAPPING
2364 # Set the number of sf_bufs to allocate. sf_bufs are virtual buffers
2365 # for sendfile(2) that are used to map file VM pages, and normally
2366 # default to a quantity that is roughly 16*MAXUSERS+512. You would
2367 # typically want about 4 of these for each simultaneous file send.
2369 options NSFBUFS=1024
2372 # Enable extra debugging code for locks. This stores the filename and
2373 # line of whatever acquired the lock in the lock itself, and change a
2374 # number of function calls to pass around the relevant data. This is
2375 # not at all useful unless you are debugging lock code. Also note
2376 # that it is likely to break e.g. fstat(1) unless you recompile your
2377 # userland with -DDEBUG_LOCKS as well.
2382 #####################################################################
2392 # General USB code (mandatory for USB)
2395 # USB Double Bulk Pipe devices
2399 # Generic USB device driver
2401 # Human Interface Device (anything with buttons and dials)
2407 # USB Iomega Zip 100 Drive (Requires scbus and da)
2409 # USB support for Belkin F5U109 and Magic Control Technology serial adapters
2415 # Diamond Rio 500 MP3 player
2420 # USB serial support
2422 # USB support for Technologies ARK3116 based serial adapters
2424 # USB support for Belkin F5U103 and compatible serial adapters
2426 # USB support for BWCT console serial adapters
2428 # USB support for serial adapters based on the FT8U100AX and FT8U232AM
2430 # USB support for some Windows CE based serial communication.
2432 # USB support for Prolific PL-2303 serial adapters
2434 # USB Visor and Palm devices
2436 # USB serial support for DDI pocket's PHS
2439 # ADMtek USB ethernet. Supports the LinkSys USB100TX,
2440 # the Billionton USB100, the Melco LU-ATX, the D-Link DSB-650TX
2441 # and the SMC 2202USB. Also works with the ADMtek AN986 Pegasus
2445 # ASIX Electronics AX88172 USB 2.0 ethernet driver. Used in the
2446 # LinkSys USB200M and various other adapters.
2451 # Devices which communicate using Ethernet over USB, particularly
2452 # Communication Device Class (CDC) Ethernet specification. Supports
2453 # Sharp Zaurus PDAs, some DOCSIS cable modems and so on.
2456 # CATC USB-EL1201A USB ethernet. Supports the CATC Netmate
2457 # and Netmate II, and the Belkin F5U111.
2460 # Kawasaki LSI ethernet. Supports the LinkSys USB10T,
2461 # Entrega USB-NET-E45, Peracom Ethernet Adapter, the
2462 # 3Com 3c19250, the ADS Technologies USB-10BT, the ATen UC10T,
2463 # the Netgear EA101, the D-Link DSB-650, the SMC 2102USB
2464 # and 2104USB, and the Corega USB-T.
2467 # RealTek RTL8150 USB to fast ethernet. Supports the Melco LUA-KTX
2468 # and the GREEN HOUSE GH-USB100B.
2471 # Davicom DM9601E USB to fast ethernet. Supports the Corega FEther USB-TXC.
2475 # debugging options for the USB subsystem
2480 options UKBD_DFLT_KEYMAP # specify the built-in keymap
2481 makeoptions UKBD_DFLT_KEYMAP=it.iso
2483 # options for uplcom:
2484 options UPLCOM_INTR_INTERVAL=100 # interrupt pipe interval
2487 # options for uvscom:
2488 options UVSCOM_DEFAULT_OPKTSIZE=8 # default output packet size
2489 options UVSCOM_INTR_INTERVAL=100 # interrupt pipe interval
2492 #####################################################################
2495 device firewire # FireWire bus code
2496 device sbp # SCSI over Firewire (Requires scbus and da)
2497 device sbp_targ # SBP-2 Target mode (Requires scbus and targ)
2498 device fwe # Ethernet over FireWire (non-standard!)
2499 device fwip # IP over FireWire (RFC2734 and RFC3146)
2501 #####################################################################
2502 # dcons support (Dumb Console Device)
2504 device dcons # dumb console driver
2505 device dcons_crom # FireWire attachment
2506 options DCONS_BUF_SIZE=16384 # buffer size
2507 options DCONS_POLL_HZ=100 # polling rate
2508 options DCONS_FORCE_CONSOLE=0 # force to be the primary console
2509 options DCONS_FORCE_GDB=1 # force to be the gdb device
2511 #####################################################################
2514 # This is a port of the OpenBSD crypto framework. Include this when
2515 # configuring IPSEC and when you have a h/w crypto device to accelerate
2516 # user applications that link to OpenSSL.
2518 # Drivers are ports from OpenBSD with some simple enhancements that have
2519 # been fed back to OpenBSD.
2521 device crypto # core crypto support
2522 device cryptodev # /dev/crypto for access to h/w
2524 device rndtest # FIPS 140-2 entropy tester
2526 device hifn # Hifn 7951, 7781, etc.
2527 options HIFN_DEBUG # enable debugging support: hw.hifn.debug
2528 options HIFN_RNDTEST # enable rndtest support
2530 device ubsec # Broadcom 5501, 5601, 58xx
2531 options UBSEC_DEBUG # enable debugging support: hw.ubsec.debug
2532 options UBSEC_RNDTEST # enable rndtest support
2534 #####################################################################
2538 # Embedded system options:
2540 # An embedded system might want to run something other than init.
2541 options INIT_PATH=/sbin/init:/stand/sysinstall
2544 options BUS_DEBUG # enable newbus debugging
2545 options DEBUG_VFS_LOCKS # enable VFS lock debugging
2546 options SOCKBUF_DEBUG # enable sockbuf last record/mb tail checking
2551 # Make the SYSINIT process performed by mi_startup() verbose. This is very
2552 # useful when porting to a new architecture. If DDB is also enabled, this
2553 # will print function names instead of addresses.
2554 options VERBOSE_SYSINIT
2556 #####################################################################
2557 # SYSV IPC KERNEL PARAMETERS
2559 # Maximum number of entries in a semaphore map.
2562 # Maximum number of System V semaphores that can be used on the system at
2566 # Total number of semaphores system wide
2569 # Total number of undo structures in system
2572 # Maximum number of System V semaphores that can be used by a single process
2576 # Maximum number of operations that can be outstanding on a single System V
2577 # semaphore at one time.
2580 # Maximum number of undo operations that can be outstanding on a single
2581 # System V semaphore at one time.
2584 # Maximum number of shared memory pages system wide.
2587 # Maximum size, in bytes, of a single System V shared memory region.
2588 options SHMMAX=(SHMMAXPGS*PAGE_SIZE+1)
2589 options SHMMAXPGS=1025
2591 # Minimum size, in bytes, of a single System V shared memory region.
2594 # Maximum number of shared memory regions that can be used on the system
2598 # Maximum number of System V shared memory regions that can be attached to
2599 # a single process at one time.
2602 # Set the amount of time (in seconds) the system will wait before
2603 # rebooting automatically when a kernel panic occurs. If set to (-1),
2604 # the system will wait indefinitely until a key is pressed on the
2606 options PANIC_REBOOT_WAIT_TIME=16
2608 # Attempt to bypass the buffer cache and put data directly into the
2609 # userland buffer for read operation when O_DIRECT flag is set on the
2610 # file. Both offset and length of the read operation must be
2611 # multiples of the physical media sector size.
2615 # Specify a lower limit for the number of swap I/O buffers. They are
2616 # (among other things) used when bypassing the buffer cache due to
2617 # DIRECTIO kernel option enabled and O_DIRECT flag set on file.
2619 options NSWBUF_MIN=120
2621 #####################################################################
2623 # More undocumented options for linting.
2624 # Note that documenting these are not considered an affront.
2626 options CAM_DEBUG_DELAY
2628 # VFS cluster debugging.
2629 options CLUSTERDEBUG
2633 # Kernel filelock debugging.
2636 # System V compatible message queues
2637 # Please note that the values provided here are used to test kernel
2638 # building. The defaults in the sources provide almost the same numbers.
2639 # MSGSSZ must be a power of 2 between 8 and 1024.
2640 options MSGMNB=2049 # Max number of chars in queue
2641 options MSGMNI=41 # Max number of message queue identifiers
2642 options MSGSEG=2049 # Max number of message segments
2643 options MSGSSZ=16 # Size of a message segment
2644 options MSGTQL=41 # Max number of messages in system
2646 options NBUF=512 # Number of buffer headers
2648 options SCSI_NCR_DEBUG
2649 options SCSI_NCR_MAX_SYNC=10000
2650 options SCSI_NCR_MAX_WIDE=1
2651 options SCSI_NCR_MYADDR=7
2653 options SC_DEBUG_LEVEL=5 # Syscons debug level
2654 options SC_RENDER_DEBUG # syscons rendering debugging
2656 options SHOW_BUSYBUFS # List buffers that prevent root unmount
2657 options SLIP_IFF_OPTS
2658 options VFS_BIO_DEBUG # VFS buffer I/O debugging
2660 options KSTACK_MAX_PAGES=32 # Maximum pages to give the kernel stack
2662 # Adaptec Array Controller driver options
2663 options AAC_DEBUG # Debugging levels:
2664 # 0 - quiet, only emit warnings
2665 # 1 - noisy, emit major function
2666 # points and things done
2667 # 2 - extremely noisy, emit trace
2668 # items in loops, etc.
2670 # Yet more undocumented options for linting.
2671 # BKTR_ALLOC_PAGES has no effect except to cause warnings, and
2672 # BROOKTREE_ALLOC_PAGES hasn't actually been superseded by it, since the
2673 # driver still mostly spells this option BROOKTREE_ALLOC_PAGES.
2674 ##options BKTR_ALLOC_PAGES=(217*4+1)
2675 options BROOKTREE_ALLOC_PAGES=(217*4+1)
2676 options MAXFILES=999