1# 2# NOTES -- Lines that can be cut/pasted into kernel and hints configs. 3# 4# Lines that begin with 'device', 'options', 'machine', 'ident', 'maxusers', 5# 'makeoptions', 'hints', etc. go into the kernel configuration that you 6# run config(8) with. 7# 8# Lines that begin with 'envvar hint.' should go into your hints file. 9# See /boot/device.hints and/or the 'hints' config(8) directive. 10# 11# Please use ``make LINT'' to create an old-style LINT file if you want to 12# do kernel test-builds. 13# 14# This file contains machine independent kernel configuration notes. For 15# machine dependent notes, look in /sys/<arch>/conf/NOTES. 16# 17 18# 19# NOTES conventions and style guide: 20# 21# Large block comments should begin and end with a line containing only a 22# comment character. 23# 24# To describe a particular object, a block comment (if it exists) should 25# come first. Next should come device, options, and hints lines in that 26# order. All device and option lines must be described by a comment that 27# doesn't just expand the device or option name. Use only a concise 28# comment on the same line if possible. Very detailed descriptions of 29# devices and subsystems belong in man pages. 30# 31# A space followed by a tab separates 'options' from an option name. Two 32# spaces followed by a tab separate 'device' from a device name. Comments 33# after an option or device should use one space after the comment character. 34# To comment out a negative option that disables code and thus should not be 35# enabled for LINT builds, precede 'options' with "#!". 36# 37 38# 39# This is the ``identification'' of the kernel. Usually this should 40# be the same as the name of your kernel. 41# 42ident LINT 43 44# 45# The `maxusers' parameter controls the static sizing of a number of 46# internal system tables by a formula defined in subr_param.c. 47# Omitting this parameter or setting it to 0 will cause the system to 48# auto-size based on physical memory. 49# 50maxusers 10 51 52# To statically compile in device wiring instead of /boot/device.hints 53#hints "LINT.hints" # Default places to look for devices. 54 55# Use the following to compile in values accessible to the kernel 56# through getenv() (or kenv(1) in userland). The format of the file 57# is 'variable=value', see kenv(1) 58# 59#env "LINT.env" 60 61# 62# The `makeoptions' parameter allows variables to be passed to the 63# generated Makefile in the build area. 64# 65# CONF_CFLAGS gives some extra compiler flags that are added to ${CFLAGS} 66# after most other flags. Here we use it to inhibit use of non-optimal 67# gcc built-in functions (e.g., memcmp). 68# 69# DEBUG happens to be magic. 70# The following is equivalent to 'config -g KERNELNAME' and creates 71# 'kernel.debug' compiled with -g debugging as well as a normal 72# 'kernel'. Use 'make install.debug' to install the debug kernel 73# but that isn't normally necessary as the debug symbols are not loaded 74# by the kernel and are not useful there anyway. 75# 76# KERNEL can be overridden so that you can change the default name of your 77# kernel. 78# 79# MODULES_OVERRIDE can be used to limit modules built to a specific list. 80# 81makeoptions CONF_CFLAGS=-fno-builtin #Don't allow use of memcmp, etc. 82#makeoptions DEBUG=-g #Build kernel with gdb(1) debug symbols 83#makeoptions KERNEL=foo #Build kernel "foo" and install "/foo" 84# Only build ext2fs module plus those parts of the sound system I need. 85#makeoptions MODULES_OVERRIDE="ext2fs sound/sound sound/driver/maestro3" 86makeoptions DESTDIR=/tmp 87 88# 89# FreeBSD processes are subject to certain limits to their consumption 90# of system resources. See getrlimit(2) for more details. Each 91# resource limit has two values, a "soft" limit and a "hard" limit. 92# The soft limits can be modified during normal system operation, but 93# the hard limits are set at boot time. Their default values are 94# in sys/<arch>/include/vmparam.h. There are two ways to change them: 95# 96# 1. Set the values at kernel build time. The options below are one 97# way to allow that limit to grow to 1GB. They can be increased 98# further by changing the parameters: 99# 100# 2. In /boot/loader.conf, set the tunables kern.maxswzone, 101# kern.maxbcache, kern.maxtsiz, kern.dfldsiz, kern.maxdsiz, 102# kern.dflssiz, kern.maxssiz and kern.sgrowsiz. 103# 104# The options in /boot/loader.conf override anything in the kernel 105# configuration file. See the function init_param1 in 106# sys/kern/subr_param.c for more details. 107# 108 109options MAXDSIZ=(1024UL*1024*1024) 110options MAXSSIZ=(128UL*1024*1024) 111options DFLDSIZ=(1024UL*1024*1024) 112 113# 114# BLKDEV_IOSIZE sets the default block size used in user block 115# device I/O. Note that this value will be overridden by the label 116# when specifying a block device from a label with a non-0 117# partition blocksize. The default is PAGE_SIZE. 118# 119options BLKDEV_IOSIZE=8192 120 121# 122# MAXPHYS and DFLTPHYS 123# 124# These are the maximal and safe 'raw' I/O block device access sizes. 125# Reads and writes will be split into MAXPHYS chunks for known good 126# devices and DFLTPHYS for the rest. Some applications have better 127# performance with larger raw I/O access sizes. Note that certain VM 128# parameters are derived from these values and making them too large 129# can make an unbootable kernel. 130# 131# The defaults are 64K and 128K respectively. 132options DFLTPHYS=(64*1024) 133options MAXPHYS=(128*1024) 134 135 136# This allows you to actually store this configuration file into 137# the kernel binary itself. See config(8) for more details. 138# 139options INCLUDE_CONFIG_FILE # Include this file in kernel 140 141# 142# Compile-time defaults for various boot parameters 143# 144options BOOTVERBOSE=1 145options BOOTHOWTO=RB_MULTIPLE 146 147# 148# Compile-time defaults for dmesg boot tagging 149# 150# Default boot tag; may use 'kern.boot_tag' loader tunable to override. The 151# current boot's tag is also exposed via the 'kern.boot_tag' sysctl. 152options BOOT_TAG=\"\" 153# Maximum boot tag size the kernel's static buffer should accommodate. Maximum 154# size for both BOOT_TAG and the assocated tunable. 155options BOOT_TAG_SZ=32 156 157options GEOM_CACHE # Disk cache. 158options GEOM_CONCAT # Disk concatenation. 159options GEOM_ELI # Disk encryption. 160options GEOM_GATE # Userland services. 161options GEOM_JOURNAL # Journaling. 162options GEOM_LABEL # Providers labelization. 163options GEOM_LINUX_LVM # Linux LVM2 volumes 164options GEOM_MAP # Map based partitioning 165options GEOM_MIRROR # Disk mirroring. 166options GEOM_MULTIPATH # Disk multipath 167options GEOM_NOP # Test class. 168options GEOM_PART_APM # Apple partitioning 169options GEOM_PART_BSD # BSD disklabel 170options GEOM_PART_BSD64 # BSD disklabel64 171options GEOM_PART_EBR # Extended Boot Records 172options GEOM_PART_GPT # GPT partitioning 173options GEOM_PART_LDM # Logical Disk Manager 174options GEOM_PART_MBR # MBR partitioning 175options GEOM_RAID # Soft RAID functionality. 176options GEOM_RAID3 # RAID3 functionality. 177options GEOM_SHSEC # Shared secret. 178options GEOM_STRIPE # Disk striping. 179options GEOM_UZIP # Read-only compressed disks 180options GEOM_VIRSTOR # Virtual storage. 181options GEOM_ZERO # Performance testing helper. 182 183# 184# The root device and filesystem type can be compiled in; 185# this provides a fallback option if the root device cannot 186# be correctly guessed by the bootstrap code, or an override if 187# the RB_DFLTROOT flag (-r) is specified when booting the kernel. 188# 189options ROOTDEVNAME=\"ufs:da0s2e\" 190 191 192##################################################################### 193# Scheduler options: 194# 195# Specifying one of SCHED_4BSD or SCHED_ULE is mandatory. These options 196# select which scheduler is compiled in. 197# 198# SCHED_4BSD is the historical, proven, BSD scheduler. It has a global run 199# queue and no CPU affinity which makes it suboptimal for SMP. It has very 200# good interactivity and priority selection. 201# 202# SCHED_ULE provides significant performance advantages over 4BSD on many 203# workloads on SMP machines. It supports cpu-affinity, per-cpu runqueues 204# and scheduler locks. It also has a stronger notion of interactivity 205# which leads to better responsiveness even on uniprocessor machines. This 206# is the default scheduler. 207# 208# SCHED_STATS is a debugging option which keeps some stats in the sysctl 209# tree at 'kern.sched.stats' and is useful for debugging scheduling decisions. 210# 211options SCHED_4BSD 212options SCHED_STATS 213#options SCHED_ULE 214 215##################################################################### 216# SMP OPTIONS: 217# 218# SMP enables building of a Symmetric MultiProcessor Kernel. 219 220# Mandatory: 221options SMP # Symmetric MultiProcessor Kernel 222 223# EARLY_AP_STARTUP releases the Application Processors earlier in the 224# kernel startup process (before devices are probed) rather than at the 225# end. This is a temporary option for use during the transition from 226# late to early AP startup. 227options EARLY_AP_STARTUP 228 229# MAXCPU defines the maximum number of CPUs that can boot in the system. 230# A default value should be already present, for every architecture. 231options MAXCPU=32 232 233# NUMA enables use of Non-Uniform Memory Access policies in various kernel 234# subsystems. 235options NUMA 236 237# MAXMEMDOM defines the maximum number of memory domains that can boot in the 238# system. A default value should already be defined by every architecture. 239options MAXMEMDOM=2 240 241# ADAPTIVE_MUTEXES changes the behavior of blocking mutexes to spin 242# if the thread that currently owns the mutex is executing on another 243# CPU. This behavior is enabled by default, so this option can be used 244# to disable it. 245options NO_ADAPTIVE_MUTEXES 246 247# ADAPTIVE_RWLOCKS changes the behavior of reader/writer locks to spin 248# if the thread that currently owns the rwlock is executing on another 249# CPU. This behavior is enabled by default, so this option can be used 250# to disable it. 251options NO_ADAPTIVE_RWLOCKS 252 253# ADAPTIVE_SX changes the behavior of sx locks to spin if the thread that 254# currently owns the sx lock is executing on another CPU. 255# This behavior is enabled by default, so this option can be used to 256# disable it. 257options NO_ADAPTIVE_SX 258 259# MUTEX_NOINLINE forces mutex operations to call functions to perform each 260# operation rather than inlining the simple cases. This can be used to 261# shrink the size of the kernel text segment. Note that this behavior is 262# already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING, 263# and WITNESS options. 264options MUTEX_NOINLINE 265 266# RWLOCK_NOINLINE forces rwlock operations to call functions to perform each 267# operation rather than inlining the simple cases. This can be used to 268# shrink the size of the kernel text segment. Note that this behavior is 269# already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING, 270# and WITNESS options. 271options RWLOCK_NOINLINE 272 273# SX_NOINLINE forces sx lock operations to call functions to perform each 274# operation rather than inlining the simple cases. This can be used to 275# shrink the size of the kernel text segment. Note that this behavior is 276# already implied by the INVARIANT_SUPPORT, INVARIANTS, KTR, LOCK_PROFILING, 277# and WITNESS options. 278options SX_NOINLINE 279 280# SMP Debugging Options: 281# 282# CALLOUT_PROFILING enables rudimentary profiling of the callwheel data 283# structure used as backend in callout(9). 284# PREEMPTION allows the threads that are in the kernel to be preempted by 285# higher priority [interrupt] threads. It helps with interactivity 286# and allows interrupt threads to run sooner rather than waiting. 287# FULL_PREEMPTION instructs the kernel to preempt non-realtime kernel 288# threads. Its sole use is to expose race conditions and other 289# bugs during development. Enabling this option will reduce 290# performance and increase the frequency of kernel panics by 291# design. If you aren't sure that you need it then you don't. 292# Relies on the PREEMPTION option. DON'T TURN THIS ON. 293# SLEEPQUEUE_PROFILING enables rudimentary profiling of the hash table 294# used to hold active sleep queues as well as sleep wait message 295# frequency. 296# TURNSTILE_PROFILING enables rudimentary profiling of the hash table 297# used to hold active lock queues. 298# UMTX_PROFILING enables rudimentary profiling of the hash table used 299# to hold active lock queues. 300# WITNESS enables the witness code which detects deadlocks and cycles 301# during locking operations. 302# WITNESS_KDB causes the witness code to drop into the kernel debugger if 303# a lock hierarchy violation occurs or if locks are held when going to 304# sleep. 305# WITNESS_SKIPSPIN disables the witness checks on spin mutexes. 306options PREEMPTION 307options FULL_PREEMPTION 308options WITNESS 309options WITNESS_KDB 310options WITNESS_SKIPSPIN 311 312# LOCK_PROFILING - Profiling locks. See LOCK_PROFILING(9) for details. 313options LOCK_PROFILING 314# Set the number of buffers and the hash size. The hash size MUST be larger 315# than the number of buffers. Hash size should be prime. 316options MPROF_BUFFERS="1536" 317options MPROF_HASH_SIZE="1543" 318 319# Profiling for the callout(9) backend. 320options CALLOUT_PROFILING 321 322# Profiling for internal hash tables. 323options SLEEPQUEUE_PROFILING 324options TURNSTILE_PROFILING 325options UMTX_PROFILING 326 327# Debugging traces for epoch(9) misuse 328options EPOCH_TRACE 329 330##################################################################### 331# COMPATIBILITY OPTIONS 332 333# Old tty interface. 334options COMPAT_43TTY 335 336# Note that as a general rule, COMPAT_FREEBSD<n> depends on 337# COMPAT_FREEBSD<n+1>, COMPAT_FREEBSD<n+2>, etc. 338 339# Enable FreeBSD4 compatibility syscalls 340options COMPAT_FREEBSD4 341 342# Enable FreeBSD5 compatibility syscalls 343options COMPAT_FREEBSD5 344 345# Enable FreeBSD6 compatibility syscalls 346options COMPAT_FREEBSD6 347 348# Enable FreeBSD7 compatibility syscalls 349options COMPAT_FREEBSD7 350 351# Enable FreeBSD9 compatibility syscalls 352options COMPAT_FREEBSD9 353 354# Enable FreeBSD10 compatibility syscalls 355options COMPAT_FREEBSD10 356 357# Enable FreeBSD11 compatibility syscalls 358options COMPAT_FREEBSD11 359 360# Enable FreeBSD12 compatibility syscalls 361options COMPAT_FREEBSD12 362 363# Enable FreeBSD13 compatibility syscalls 364options COMPAT_FREEBSD13 365 366# Enable FreeBSD14 compatibility syscalls 367options COMPAT_FREEBSD14 368 369# Enable Linux Kernel Programming Interface 370options COMPAT_LINUXKPI 371 372# 373# These three options provide support for System V Interface 374# Definition-style interprocess communication, in the form of shared 375# memory, semaphores, and message queues, respectively. 376# 377options SYSVSHM 378options SYSVSEM 379options SYSVMSG 380 381 382##################################################################### 383# DEBUGGING OPTIONS 384 385# 386# Compile with kernel debugger related code. 387# 388options KDB 389 390# 391# Print a stack trace of the current thread on the console for a panic. 392# 393options KDB_TRACE 394 395# 396# Don't enter the debugger for a panic. Intended for unattended operation 397# where you may want to enter the debugger from the console, but still want 398# the machine to recover from a panic. 399# 400options KDB_UNATTENDED 401 402# 403# Enable the ddb debugger backend. 404# 405options DDB 406 407# 408# Print the numerical value of symbols in addition to the symbolic 409# representation. 410# 411options DDB_NUMSYM 412 413# 414# Enable the remote gdb debugger backend. 415# 416options GDB 417 418# 419# Trashes list pointers when they become invalid (i.e., the element is 420# removed from a list). Relatively inexpensive to enable. 421# 422options QUEUE_MACRO_DEBUG_TRASH 423 424# 425# Stores information about the last caller to modify the list object 426# in the list object. Requires additional memory overhead. 427# 428#options QUEUE_MACRO_DEBUG_TRACE 429 430# 431# SYSCTL_DEBUG enables a 'sysctl' debug tree that can be used to dump the 432# contents of the registered sysctl nodes on the console. It is disabled by 433# default because it generates excessively verbose console output that can 434# interfere with serial console operation. 435# 436options SYSCTL_DEBUG 437 438# 439# Enable textdump by default, this disables kernel core dumps. 440# 441options TEXTDUMP_PREFERRED 442 443# 444# Enable extra debug messages while performing textdumps. 445# 446options TEXTDUMP_VERBOSE 447 448# 449# NO_SYSCTL_DESCR omits the sysctl node descriptions to save space in the 450# resulting kernel. 451options NO_SYSCTL_DESCR 452 453# 454# MALLOC_DEBUG_MAXZONES enables multiple uma zones for malloc(9) 455# allocations that are smaller than a page. The purpose is to isolate 456# different malloc types into hash classes, so that any buffer 457# overruns or use-after-free will usually only affect memory from 458# malloc types in that hash class. This is purely a debugging tool; 459# by varying the hash function and tracking which hash class was 460# corrupted, the intersection of the hash classes from each instance 461# will point to a single malloc type that is being misused. At this 462# point inspection or memguard(9) can be used to catch the offending 463# code. 464# 465options MALLOC_DEBUG_MAXZONES=8 466 467# 468# DEBUG_MEMGUARD builds and enables memguard(9), a replacement allocator 469# for the kernel used to detect modify-after-free scenarios. See the 470# memguard(9) man page for more information on usage. 471# 472options DEBUG_MEMGUARD 473 474# 475# DEBUG_REDZONE enables buffer underflows and buffer overflows detection for 476# malloc(9). 477# 478options DEBUG_REDZONE 479 480# 481# EARLY_PRINTF enables support for calling a special printf (eprintf) 482# very early in the kernel (before cn_init() has been called). This 483# should only be used for debugging purposes early in boot. Normally, 484# it is not defined. It is commented out here because this feature 485# isn't generally available. And the required eputc() isn't defined. 486# 487#options EARLY_PRINTF 488 489# 490# KTRACE enables the system-call tracing facility ktrace(2). To be more 491# SMP-friendly, KTRACE uses a worker thread to process most trace events 492# asynchronously to the thread generating the event. This requires a 493# pre-allocated store of objects representing trace events. The 494# KTRACE_REQUEST_POOL option specifies the initial size of this store. 495# The size of the pool can be adjusted both at boottime and runtime via 496# the kern.ktrace_request_pool tunable and sysctl. 497# 498options KTRACE #kernel tracing 499options KTRACE_REQUEST_POOL=101 500 501# 502# KTR is a kernel tracing facility imported from BSD/OS. It is 503# enabled with the KTR option. KTR_ENTRIES defines the number of 504# entries in the circular trace buffer; it may be an arbitrary number. 505# KTR_BOOT_ENTRIES defines the number of entries during the early boot, 506# before malloc(9) is functional. 507# KTR_COMPILE defines the mask of events to compile into the kernel as 508# defined by the KTR_* constants in <sys/ktr.h>. KTR_MASK defines the 509# initial value of the ktr_mask variable which determines at runtime 510# what events to trace. KTR_CPUMASK determines which CPU's log 511# events, with bit X corresponding to CPU X. The layout of the string 512# passed as KTR_CPUMASK must match a series of bitmasks each of them 513# separated by the "," character (ie: 514# KTR_CPUMASK=0xAF,0xFFFFFFFFFFFFFFFF). KTR_VERBOSE enables 515# dumping of KTR events to the console by default. This functionality 516# can be toggled via the debug.ktr_verbose sysctl and defaults to off 517# if KTR_VERBOSE is not defined. See ktr(4) and ktrdump(8) for details. 518# 519options KTR 520options KTR_BOOT_ENTRIES=1024 521options KTR_ENTRIES=(128*1024) 522options KTR_COMPILE=(KTR_ALL) 523options KTR_MASK=KTR_INTR 524options KTR_CPUMASK=0x3 525options KTR_VERBOSE 526 527# 528# ALQ(9) is a facility for the asynchronous queuing of records from the kernel 529# to a vnode, and is employed by services such as ktr(4) to produce trace 530# files based on a kernel event stream. Records are written asynchronously 531# in a worker thread. 532# 533options ALQ 534options KTR_ALQ 535 536# 537# The INVARIANTS option is used in a number of source files to enable 538# extra sanity checking of internal structures. This support is not 539# enabled by default because of the extra time it would take to check 540# for these conditions, which can only occur as a result of 541# programming errors. 542# 543options INVARIANTS 544 545# 546# The INVARIANT_SUPPORT option makes us compile in support for 547# verifying some of the internal structures. It is a prerequisite for 548# 'INVARIANTS', as enabling 'INVARIANTS' will make these functions be 549# called. The intent is that you can set 'INVARIANTS' for single 550# source files (by changing the source file or specifying it on the 551# command line) if you have 'INVARIANT_SUPPORT' enabled. Also, if you 552# wish to build a kernel module with 'INVARIANTS', then adding 553# 'INVARIANT_SUPPORT' to your kernel will provide all the necessary 554# infrastructure without the added overhead. 555# 556options INVARIANT_SUPPORT 557 558# 559# The KASSERT_PANIC_OPTIONAL option allows kasserts to fire without 560# necessarily inducing a panic. Panic is the default behavior, but 561# runtime options can configure it either entirely off, or off with a 562# limit. 563# 564options KASSERT_PANIC_OPTIONAL 565 566# 567# The DIAGNOSTIC option is used to enable extra debugging information 568# and invariants checking. The added checks are too expensive or noisy 569# for an INVARIANTS kernel and thus are disabled by default. It is 570# expected that a kernel configured with DIAGNOSTIC will also have the 571# INVARIANTS option enabled. 572# 573options DIAGNOSTIC 574 575# 576# REGRESSION causes optional kernel interfaces necessary only for regression 577# testing to be enabled. These interfaces may constitute security risks 578# when enabled, as they permit processes to easily modify aspects of the 579# run-time environment to reproduce unlikely or unusual (possibly normally 580# impossible) scenarios. 581# 582options REGRESSION 583 584# 585# This option lets some drivers co-exist that can't co-exist in a running 586# system. This is used to be able to compile all kernel code in one go for 587# quality assurance purposes (like this file, which the option takes it name 588# from.) 589# 590options COMPILING_LINT 591 592# 593# STACK enables the stack(9) facility, allowing the capture of kernel stack 594# for the purpose of procinfo(1), etc. stack(9) will also be compiled in 595# automatically if DDB(4) is compiled into the kernel. 596# 597options STACK 598 599# 600# The NUM_CORE_FILES option specifies the limit for the number of core 601# files generated by a particular process, when the core file format 602# specifier includes the %I pattern. Since we only have 1 character for 603# the core count in the format string, meaning the range will be 0-9, the 604# maximum value allowed for this option is 10. 605# This core file limit can be adjusted at runtime via the debug.ncores 606# sysctl. 607# 608options NUM_CORE_FILES=5 609 610# 611# The TSLOG option enables timestamped logging of events, especially 612# function entries/exits, in order to track the time spent by the kernel. 613# In particular, this is useful when investigating the early boot process, 614# before it is possible to use more sophisticated tools like DTrace. 615# The TSLOGSIZE option controls the size of the (preallocated, fixed 616# length) buffer used for storing these events (default: 262144 records). 617# The TSLOG_PAGEZERO option enables TSLOG of pmap_zero_page; this must be 618# enabled separately since it typically generates too many records to be 619# useful. 620# 621# For security reasons the TSLOG option should not be enabled on systems 622# used in production. 623# 624options TSLOG 625options TSLOGSIZE=262144 626 627 628##################################################################### 629# PERFORMANCE MONITORING OPTIONS 630 631# 632# The hwpmc driver that allows the use of in-CPU performance monitoring 633# counters for performance monitoring. The base kernel needs to be configured 634# with the 'options' line, while the hwpmc device can be either compiled 635# in or loaded as a loadable kernel module. 636# 637# Additional configuration options may be required on specific architectures, 638# please see hwpmc(4). 639 640device hwpmc # Driver (also a loadable module) 641options HWPMC_DEBUG 642options HWPMC_HOOKS # Other necessary kernel hooks 643 644 645##################################################################### 646# NETWORKING OPTIONS 647 648# 649# Protocol families 650# 651options INET #Internet communications protocols 652options INET6 #IPv6 communications protocols 653# 654# Note if you include INET/INET6 or both options 655# You *must* define at least one of the congestion control 656# options or the compile will fail. GENERIC defines 657# options CC_CUBIC. You may want to specify a default 658# if multiple congestion controls are compiled in. 659# The string in default is the name of the 660# cc module as it would appear in the sysctl for 661# setting the default. The code defines CUBIC 662# as default, or the sole cc_module compiled in. 663# 664options CC_CDG 665options CC_CHD 666options CC_CUBIC 667options CC_DCTCP 668options CC_HD 669options CC_HTCP 670options CC_NEWRENO 671options CC_VEGAS 672options CC_DEFAULT=\"cubic\" 673options RATELIMIT # TX rate limiting support 674 675options ROUTETABLES=2 # allocated fibs up to 65536. default is 1. 676 # but that would be a bad idea as they are large. 677 678options TCP_OFFLOAD # TCP offload support. 679options TCP_RFC7413 # TCP Fast Open 680 681options TCPHPTS 682 683# In order to enable IPSEC you MUST also add device crypto to 684# your kernel configuration 685options IPSEC #IP security (requires device crypto) 686 687# Option IPSEC_SUPPORT does not enable IPsec, but makes it possible to 688# load it as a kernel module. You still MUST add device crypto to your kernel 689# configuration. 690options IPSEC_SUPPORT 691#options IPSEC_DEBUG #debug for IP security 692 693# Alternative TCP stacks 694options TCP_BBR 695options TCP_RACK 696 697# TLS framing and encryption/decryption of data over TCP sockets. 698options KERN_TLS # TLS transmit and receive offload 699 700# Netlink kernel/user<>kernel/user messaging interface 701options NETLINK 702 703# 704# SMB/CIFS requester 705# NETSMB enables support for SMB protocol, it requires LIBMCHAIN and LIBICONV 706# options. 707options NETSMB #SMB/CIFS requester 708 709# mchain library. It can be either loaded as KLD or compiled into kernel 710options LIBMCHAIN 711 712# libalias library, performing NAT 713options LIBALIAS 714 715# 716# SCTP is a NEW transport protocol defined by 717# RFC2960 updated by RFC3309 and RFC3758.. and 718# soon to have a new base RFC and many many more 719# extensions. This release supports all the extensions 720# including many drafts (most about to become RFC's). 721# It is the reference implementation of SCTP 722# and is quite well tested. 723# 724# Note YOU MUST have both INET and INET6 defined. 725# You don't have to enable V6, but SCTP is 726# dual stacked and so far we have not torn apart 727# the V6 and V4.. since an association can span 728# both a V6 and V4 address at the SAME time :-) 729# 730# The SCTP_SUPPORT option does not enable SCTP, but provides the necessary 731# support for loading SCTP as a loadable kernel module. 732# 733options SCTP 734options SCTP_SUPPORT 735 736# There are bunches of options: 737# this one turns on all sorts of 738# nastily printing that you can 739# do. It's all controlled by a 740# bit mask (settable by socket opt and 741# by sysctl). Including will not cause 742# logging until you set the bits.. but it 743# can be quite verbose.. so without this 744# option we don't do any of the tests for 745# bits and prints.. which makes the code run 746# faster.. if you are not debugging don't use. 747options SCTP_DEBUG 748 749# 750# All that options after that turn on specific types of 751# logging. You can monitor CWND growth, flight size 752# and all sorts of things. Go look at the code and 753# see. I have used this to produce interesting 754# charts and graphs as well :-> 755# 756# I have not yet committed the tools to get and print 757# the logs, I will do that eventually .. before then 758# if you want them send me an email rrs@freebsd.org 759# You basically must have ktr(4) enabled for these 760# and you then set the sysctl to turn on/off various 761# logging bits. Use ktrdump(8) to pull the log and run 762# it through a display program.. and graphs and other 763# things too. 764# 765options SCTP_LOCK_LOGGING 766options SCTP_MBUF_LOGGING 767options SCTP_MBCNT_LOGGING 768options SCTP_PACKET_LOGGING 769options SCTP_LTRACE_CHUNKS 770options SCTP_LTRACE_ERRORS 771 772# OpenFabrics Enterprise Distribution (Infiniband). 773options OFED 774options OFED_DEBUG_INIT 775 776# Sockets Direct Protocol 777options SDP 778options SDP_DEBUG 779 780# IP over Infiniband 781options IPOIB 782options IPOIB_DEBUG 783options IPOIB_CM 784 785# altq(9). Enable the base part of the hooks with the ALTQ option. 786# Individual disciplines must be built into the base system and can not be 787# loaded as modules at this point. ALTQ requires a stable TSC so if yours is 788# broken or changes with CPU throttling then you must also have the ALTQ_NOPCC 789# option. 790options ALTQ 791options ALTQ_CBQ # Class Based Queueing 792options ALTQ_RED # Random Early Detection 793options ALTQ_RIO # RED In/Out 794options ALTQ_CODEL # CoDel Active Queueing 795options ALTQ_HFSC # Hierarchical Packet Scheduler 796options ALTQ_FAIRQ # Fair Packet Scheduler 797options ALTQ_CDNR # Traffic conditioner 798options ALTQ_PRIQ # Priority Queueing 799options ALTQ_NOPCC # Required if the TSC is unusable 800options ALTQ_DEBUG 801 802# netgraph(4). Enable the base netgraph code with the NETGRAPH option. 803# Individual node types can be enabled with the corresponding option 804# listed below; however, this is not strictly necessary as netgraph 805# will automatically load the corresponding KLD module if the node type 806# is not already compiled into the kernel. Each type below has a 807# corresponding man page, e.g., ng_async(8). 808options NETGRAPH # netgraph(4) system 809options NETGRAPH_DEBUG # enable extra debugging, this 810 # affects netgraph(4) and nodes 811# Node types 812options NETGRAPH_ASYNC 813options NETGRAPH_BLUETOOTH # ng_bluetooth(4) 814options NETGRAPH_BLUETOOTH_HCI # ng_hci(4) 815options NETGRAPH_BLUETOOTH_L2CAP # ng_l2cap(4) 816options NETGRAPH_BLUETOOTH_SOCKET # ng_btsocket(4) 817options NETGRAPH_BLUETOOTH_UBT # ng_ubt(4) 818options NETGRAPH_BLUETOOTH_UBTBCMFW # ubtbcmfw(4) 819options NETGRAPH_BPF 820options NETGRAPH_BRIDGE 821options NETGRAPH_CAR 822options NETGRAPH_CHECKSUM 823options NETGRAPH_CISCO 824options NETGRAPH_DEFLATE 825options NETGRAPH_DEVICE 826options NETGRAPH_ECHO 827options NETGRAPH_EIFACE 828options NETGRAPH_ETHER 829options NETGRAPH_FRAME_RELAY 830options NETGRAPH_GIF 831options NETGRAPH_GIF_DEMUX 832options NETGRAPH_HOLE 833options NETGRAPH_IFACE 834options NETGRAPH_IP_INPUT 835options NETGRAPH_IPFW 836options NETGRAPH_KSOCKET 837options NETGRAPH_L2TP 838options NETGRAPH_LMI 839options NETGRAPH_MPPC_COMPRESSION 840options NETGRAPH_MPPC_ENCRYPTION 841options NETGRAPH_NETFLOW 842options NETGRAPH_NAT 843options NETGRAPH_ONE2MANY 844options NETGRAPH_PATCH 845options NETGRAPH_PIPE 846options NETGRAPH_PPP 847options NETGRAPH_PPPOE 848options NETGRAPH_PPTPGRE 849options NETGRAPH_PRED1 850options NETGRAPH_RFC1490 851options NETGRAPH_SOCKET 852options NETGRAPH_SPLIT 853options NETGRAPH_TAG 854options NETGRAPH_TCPMSS 855options NETGRAPH_TEE 856options NETGRAPH_UI 857options NETGRAPH_VJC 858options NETGRAPH_VLAN 859 860# Network stack virtualization. 861options VIMAGE 862options VNET_DEBUG # debug for VIMAGE 863 864# 865# Network interfaces: 866# The `loop' device is MANDATORY when networking is enabled. 867device loop 868 869# The `ether' device provides generic code to handle 870# Ethernets; it is MANDATORY when an Ethernet device driver is 871# configured. 872device ether 873 874# The `vlan' device implements the VLAN tagging of Ethernet frames 875# according to IEEE 802.1Q. 876device vlan 877 878# The `vxlan' device implements the VXLAN encapsulation of Ethernet 879# frames in UDP packets according to RFC7348. 880device vxlan 881 882# The `wlan' device provides generic code to support 802.11 883# drivers, including host AP mode; it is MANDATORY for the wi, 884# and ath drivers and will eventually be required by all 802.11 drivers. 885device wlan 886options IEEE80211_DEBUG #enable debugging msgs 887options IEEE80211_DEBUG_REFCNT 888options IEEE80211_SUPPORT_MESH #enable 802.11s D3.0 support 889options IEEE80211_SUPPORT_TDMA #enable TDMA support 890 891# The `wlan_wep', `wlan_tkip', and `wlan_ccmp' devices provide 892# support for WEP, TKIP, and AES-CCMP crypto protocols optionally 893# used with 802.11 devices that depend on the `wlan' module. 894device wlan_wep 895device wlan_ccmp 896device wlan_tkip 897 898# The `wlan_xauth' device provides support for external (i.e. user-mode) 899# authenticators for use with 802.11 drivers that use the `wlan' 900# module and support 802.1x and/or WPA security protocols. 901device wlan_xauth 902 903# The `wlan_acl' device provides a MAC-based access control mechanism 904# for use with 802.11 drivers operating in ap mode and using the 905# `wlan' module. 906# The 'wlan_amrr' device provides AMRR transmit rate control algorithm 907device wlan_acl 908device wlan_amrr 909 910# The `bpf' device enables the Berkeley Packet Filter. Be 911# aware of the legal and administrative consequences of enabling this 912# option. DHCP requires bpf. 913device bpf 914 915# The `netmap' device implements memory-mapped access to network 916# devices from userspace, enabling wire-speed packet capture and 917# generation even at 10Gbit/s. Requires support in the device 918# driver. Supported drivers are ixgbe, e1000, re. 919device netmap 920 921# The `disc' device implements a minimal network interface, 922# which throws away all packets sent and never receives any. It is 923# included for testing and benchmarking purposes. 924device disc 925 926# The `epair' device implements a virtual back-to-back connected Ethernet 927# like interface pair. 928device epair 929 930# The `edsc' device implements a minimal Ethernet interface, 931# which discards all packets sent and receives none. 932device edsc 933 934# The `tuntap' device implements (user-)ppp, nos-tun(8) and a pty-like virtual 935# Ethernet interface 936device tuntap 937 938# The `gif' device implements IPv6 over IP4 tunneling, 939# IPv4 over IPv6 tunneling, IPv4 over IPv4 tunneling and 940# IPv6 over IPv6 tunneling. 941# The `gre' device implements GRE (Generic Routing Encapsulation) tunneling, 942# as specified in the RFC 2784 and RFC 2890. 943# The `me' device implements Minimal Encapsulation within IPv4 as 944# specified in the RFC 2004. 945# The XBONEHACK option allows the same pair of addresses to be configured on 946# multiple gif interfaces. 947device gif 948device gre 949device me 950options XBONEHACK 951 952# The `stf' device implements 6to4 encapsulation. 953device stf 954 955# The pf packet filter consists of three devices: 956# The `pf' device provides /dev/pf and the firewall code itself. 957# The `pflog' device provides the pflog0 interface which logs packets. 958# The `pfsync' device provides the pfsync0 interface used for 959# synchronization of firewall state tables (over the net). 960device pf 961device pflog 962device pfsync 963 964# Bridge interface. 965device if_bridge 966 967# Common Address Redundancy Protocol. See carp(4) for more details. 968device carp 969 970# IPsec interface. 971device enc 972 973# Link aggregation interface. 974device lagg 975 976# WireGuard interface. 977device wg 978 979# dummymbuf – mbuf alteration pfil hooks 980device dummymbuf 981 982# 983# Internet family options: 984# 985# MROUTING enables the kernel multicast packet forwarder, which works 986# with mrouted and XORP. 987# 988# IPFIREWALL enables support for IP firewall construction, in 989# conjunction with the `ipfw' program. IPFIREWALL_VERBOSE sends 990# logged packets to the system logger. IPFIREWALL_VERBOSE_LIMIT 991# limits the number of times a matching entry can be logged. 992# 993# WARNING: IPFIREWALL defaults to a policy of "deny ip from any to any" 994# and if you do not add other rules during startup to allow access, 995# YOU WILL LOCK YOURSELF OUT. It is suggested that you set firewall_type=open 996# in /etc/rc.conf when first enabling this feature, then refining the 997# firewall rules in /etc/rc.firewall after you've tested that the new kernel 998# feature works properly. 999# 1000# IPFIREWALL_DEFAULT_TO_ACCEPT causes the default rule (at boot) to 1001# allow everything. Use with care, if a cracker can crash your 1002# firewall machine, they can get to your protected machines. However, 1003# if you are using it as an as-needed filter for specific problems as 1004# they arise, then this may be for you. Changing the default to 'allow' 1005# means that you won't get stuck if the kernel and /sbin/ipfw binary get 1006# out of sync. 1007# 1008# IPDIVERT enables the divert IP sockets, used by ``ipfw divert''. It 1009# depends on IPFIREWALL if compiled into the kernel. 1010# 1011# IPFIREWALL_NAT adds support for in kernel nat in ipfw, and it requires 1012# LIBALIAS. 1013# 1014# IPFIREWALL_NAT64 adds support for in kernel NAT64 in ipfw. 1015# 1016# IPFIREWALL_NPTV6 adds support for in kernel NPTv6 in ipfw. 1017# 1018# IPFIREWALL_PMOD adds support for protocols modification module. Currently 1019# it supports only TCP MSS modification. 1020# 1021# IPSTEALTH enables code to support stealth forwarding (i.e., forwarding 1022# packets without touching the TTL). This can be useful to hide firewalls 1023# from traceroute and similar tools. 1024# 1025# PF_DEFAULT_TO_DROP causes the default pf(4) rule to deny everything. 1026# 1027# TCPPCAP enables code which keeps the last n packets sent and received 1028# on a TCP socket. 1029# 1030# TCP_BLACKBOX enables enhanced TCP event logging. 1031# 1032# TCP_HHOOK enables the hhook(9) framework hooks for the TCP stack. 1033# SOCKET_HHOOK enables the hhook(9) framework hooks for socket operations. 1034# 1035# ROUTE_MPATH provides support for multipath routing. 1036# 1037options MROUTING # Multicast routing 1038options IPFIREWALL #firewall 1039options IPFIREWALL_VERBOSE #enable logging to syslogd(8) 1040options IPFIREWALL_VERBOSE_LIMIT=100 #limit verbosity 1041options IPFIREWALL_DEFAULT_TO_ACCEPT #allow everything by default 1042options IPFIREWALL_NAT #ipfw kernel nat support 1043options IPFIREWALL_NAT64 #ipfw kernel NAT64 support 1044options IPFIREWALL_NPTV6 #ipfw kernel IPv6 NPT support 1045options IPDIVERT #divert sockets 1046options IPFILTER #ipfilter support 1047options IPFILTER_LOG #ipfilter logging 1048options IPFILTER_LOOKUP #ipfilter pools 1049options IPFILTER_DEFAULT_BLOCK #block all packets by default 1050options IPSTEALTH #support for stealth forwarding 1051options PF_DEFAULT_TO_DROP #drop everything by default 1052options TCPPCAP 1053options TCP_BLACKBOX 1054options TCP_HHOOK 1055options SOCKET_HHOOK 1056options ROUTE_MPATH 1057 1058# The MBUF_STRESS_TEST option enables options which create 1059# various random failures / extreme cases related to mbuf 1060# functions. See mbuf(9) for a list of available test cases. 1061# MBUF_PROFILING enables code to profile the mbuf chains 1062# exiting the system (via participating interfaces) and 1063# return a logarithmic histogram of monitored parameters 1064# (e.g. packet size, wasted space, number of mbufs in chain). 1065options MBUF_STRESS_TEST 1066options MBUF_PROFILING 1067 1068# Statically link in accept filters 1069options ACCEPT_FILTER_DATA 1070options ACCEPT_FILTER_DNS 1071options ACCEPT_FILTER_HTTP 1072options ACCEPT_FILTER_TLS 1073 1074# TCP_SIGNATURE adds support for RFC 2385 (TCP-MD5) digests. These are 1075# carried in TCP option 19. This option is commonly used to protect 1076# TCP sessions (e.g. BGP) where IPSEC is not available nor desirable. 1077# This is enabled on a per-socket basis using the TCP_MD5SIG socket option. 1078# This requires the use of 'device crypto' and either 'options IPSEC' or 1079# 'options IPSEC_SUPPORT'. 1080options TCP_SIGNATURE #include support for RFC 2385 1081 1082# DUMMYNET enables the "dummynet" bandwidth limiter. You need IPFIREWALL 1083# as well. See dummynet(4) and ipfw(8) for more info. When you run 1084# DUMMYNET, HZ/kern.hz should be at least 1000 for adequate response. 1085options DUMMYNET 1086 1087# The DEBUGNET option enables a basic debug/panic-time networking API. It 1088# is used by NETDUMP and NETGDB. 1089options DEBUGNET 1090 1091# The NETDUMP option enables netdump(4) client support in the kernel. 1092# This allows a panicking kernel to transmit a kernel dump to a remote host. 1093options NETDUMP 1094 1095# The NETGDB option enables netgdb(4) support in the kernel. This allows a 1096# panicking kernel to be debugged as a GDB remote over the network. 1097options NETGDB 1098 1099##################################################################### 1100# FILESYSTEM OPTIONS 1101 1102# 1103# Only the root filesystem needs to be statically compiled or preloaded 1104# as module; everything else will be automatically loaded at mount 1105# time. Some people still prefer to statically compile other 1106# filesystems as well. 1107# 1108# NB: The UNION filesystem was known to be buggy in the past. It is now 1109# being actively maintained, although there are still some issues being 1110# resolved. 1111# 1112 1113# One of these is mandatory: 1114options FFS #Fast filesystem 1115options NFSCL #Network File System client 1116 1117# The rest are optional: 1118options AUTOFS #Automounter filesystem 1119options CD9660 #ISO 9660 filesystem 1120options FDESCFS #File descriptor filesystem 1121options FUSEFS #FUSEFS support module 1122options MSDOSFS #MS DOS File System (FAT, FAT32) 1123options NFSLOCKD #Network Lock Manager 1124options NFSD #Network Filesystem Server 1125options KGSSAPI #Kernel GSSAPI implementation 1126 1127options NULLFS #NULL filesystem 1128options PROCFS #Process filesystem (requires PSEUDOFS) 1129options PSEUDOFS #Pseudo-filesystem framework 1130options PSEUDOFS_TRACE #Debugging support for PSEUDOFS 1131options SMBFS #SMB/CIFS filesystem 1132options TMPFS #Efficient memory filesystem 1133options UDF #Universal Disk Format 1134options UNIONFS #Union filesystem 1135# The xFS_ROOT options REQUIRE the associated ``options xFS'' 1136options NFS_ROOT #NFS usable as root device 1137 1138# Soft updates is a technique for improving filesystem speed and 1139# making abrupt shutdown less risky. 1140# 1141options SOFTUPDATES 1142 1143# Extended attributes allow additional data to be associated with files, 1144# and is used for ACLs, Capabilities, and MAC labels. 1145# See src/sys/ufs/ufs/README.extattr for more information. 1146options UFS_EXTATTR 1147options UFS_EXTATTR_AUTOSTART 1148 1149# Access Control List support for UFS filesystems. The current ACL 1150# implementation requires extended attribute support, UFS_EXTATTR, 1151# for the underlying filesystem. 1152# See src/sys/ufs/ufs/README.acls for more information. 1153options UFS_ACL 1154 1155# Directory hashing improves the speed of operations on very large 1156# directories at the expense of some memory. 1157options UFS_DIRHASH 1158 1159# Gjournal-based UFS journaling support. 1160options UFS_GJOURNAL 1161 1162# Make space in the kernel for a root filesystem on a md device. 1163# Define to the number of kilobytes to reserve for the filesystem. 1164# This is now optional. 1165# If not defined, the root filesystem passed in as the MFS_IMAGE makeoption 1166# will be automatically embedded in the kernel during linking. Its exact size 1167# will be consumed within the kernel. 1168# If defined, the old way of embedding the filesystem in the kernel will be 1169# used. That is to say MD_ROOT_SIZE KB will be allocated in the kernel and 1170# later, the filesystem image passed in as the MFS_IMAGE makeoption will be 1171# dd'd into the reserved space if it fits. 1172options MD_ROOT_SIZE=10 1173 1174# Make the md device a potential root device, either with preloaded 1175# images of type mfs_root or md_root. 1176options MD_ROOT 1177 1178# Write-protect the md root device so that it may not be mounted writeable. 1179options MD_ROOT_READONLY 1180 1181# Allow to read MD image from external memory regions 1182options MD_ROOT_MEM 1183 1184# Disk quotas are supported when this option is enabled. 1185options QUOTA #enable disk quotas 1186 1187# If you are running a machine just as a fileserver for PC and MAC 1188# users, using SAMBA, you may consider setting this option 1189# and keeping all those users' directories on a filesystem that is 1190# mounted with the suiddir option. This gives new files the same 1191# ownership as the directory (similar to group). It's a security hole 1192# if you let these users run programs, so confine it to file-servers 1193# (but it'll save you lots of headaches in those cases). Root owned 1194# directories are exempt and X bits are cleared. The suid bit must be 1195# set on the directory as well; see chmod(1). PC owners can't see/set 1196# ownerships so they keep getting their toes trodden on. This saves 1197# you all the support calls as the filesystem it's used on will act as 1198# they expect: "It's my dir so it must be my file". 1199# 1200options SUIDDIR 1201 1202# NFS options: 1203options NFS_MINATTRTIMO=3 # VREG attrib cache timeout in sec 1204options NFS_MAXATTRTIMO=60 1205options NFS_MINDIRATTRTIMO=30 # VDIR attrib cache timeout in sec 1206options NFS_MAXDIRATTRTIMO=60 1207options NFS_DEBUG # Enable NFS Debugging 1208 1209# 1210# Add support for the EXT2FS filesystem of Linux fame. Be a bit 1211# careful with this - the ext2fs code has a tendency to lag behind 1212# changes and not be exercised very much, so mounting read/write could 1213# be dangerous (and even mounting read only could result in panics.) 1214# 1215options EXT2FS 1216 1217# The system memory devices; /dev/mem, /dev/kmem 1218device mem 1219 1220# The kernel symbol table device; /dev/ksyms 1221device ksyms 1222 1223# Optional character code conversion support with LIBICONV. 1224# Each option requires their base file system and LIBICONV. 1225options CD9660_ICONV 1226options MSDOSFS_ICONV 1227options UDF_ICONV 1228 1229 1230##################################################################### 1231# POSIX P1003.1B 1232 1233# Real time extensions added in the 1993 POSIX 1234# _KPOSIX_PRIORITY_SCHEDULING: Build in _POSIX_PRIORITY_SCHEDULING 1235 1236options _KPOSIX_PRIORITY_SCHEDULING 1237# p1003_1b_semaphores are very experimental, 1238# user should be ready to assist in debugging if problems arise. 1239options P1003_1B_SEMAPHORES 1240 1241# POSIX message queue 1242options P1003_1B_MQUEUE 1243 1244##################################################################### 1245# SECURITY POLICY PARAMETERS 1246 1247# Support for BSM audit 1248options AUDIT 1249 1250# Support for Mandatory Access Control (MAC): 1251options MAC 1252options MAC_BIBA 1253options MAC_BSDEXTENDED 1254options MAC_DDB 1255options MAC_IFOFF 1256options MAC_IPACL 1257options MAC_LOMAC 1258options MAC_MLS 1259options MAC_NONE 1260options MAC_NTPD 1261options MAC_PARTITION 1262options MAC_PORTACL 1263options MAC_PRIORITY 1264options MAC_SEEOTHERUIDS 1265options MAC_STUB 1266options MAC_TEST 1267options MAC_VERIEXEC 1268options MAC_VERIEXEC_SHA1 1269options MAC_VERIEXEC_SHA256 1270options MAC_VERIEXEC_SHA384 1271options MAC_VERIEXEC_SHA512 1272device mac_veriexec_parser 1273 1274# Support for Capsicum 1275options CAPABILITIES # fine-grained rights on file descriptors 1276options CAPABILITY_MODE # sandboxes with no global namespace access 1277 1278 1279##################################################################### 1280# CLOCK OPTIONS 1281 1282# The granularity of operation is controlled by the kernel option HZ (default 1283# frequency of 1000 Hz or a period 1ms between calls). Virtual machine guests 1284# use a value of 100. Lower values may lower overhead at the expense of accuracy 1285# of scheduling, though the adaptive tick code reduces that overhead. 1286 1287options HZ=100 1288 1289# Enable support for the kernel PLL to use an external PPS signal, 1290# under supervision of [x]ntpd(8) 1291# More info in ntpd documentation: http://www.eecis.udel.edu/~ntp 1292 1293options PPS_SYNC 1294 1295# Enable support for generic feed-forward clocks in the kernel. 1296# The feed-forward clock support is an alternative to the feedback oriented 1297# ntpd/system clock approach, and is to be used with a feed-forward 1298# synchronization algorithm such as the RADclock: 1299# More info here: http://www.synclab.org/radclock 1300 1301options FFCLOCK 1302 1303 1304##################################################################### 1305# SCSI DEVICES 1306 1307# SCSI DEVICE CONFIGURATION 1308 1309# The SCSI subsystem consists of the `base' SCSI code, a number of 1310# high-level SCSI device `type' drivers, and the low-level host-adapter 1311# device drivers. The host adapters are listed in the ISA and PCI 1312# device configuration sections below. 1313# 1314# It is possible to wire down your SCSI devices so that a given bus, 1315# target, and LUN always come on line as the same device unit. In 1316# earlier versions the unit numbers were assigned in the order that 1317# the devices were probed on the SCSI bus. This means that if you 1318# removed a disk drive, you may have had to rewrite your /etc/fstab 1319# file, and also that you had to be careful when adding a new disk 1320# as it may have been probed earlier and moved your device configuration 1321# around. 1322 1323# This old behavior is maintained as the default behavior. The unit 1324# assignment begins with the first non-wired down unit for a device 1325# type. For example, if you wire a disk as "da3" then the first 1326# non-wired disk will be assigned da4. 1327 1328# The syntax for wiring down devices is: 1329 1330envvar hint.scbus.0.at="ahc0" 1331envvar hint.scbus.1.at="ahc1" 1332envvar hint.scbus.1.bus="0" 1333envvar hint.scbus.3.at="ahc2" 1334envvar hint.scbus.3.bus="0" 1335envvar hint.scbus.2.at="ahc2" 1336envvar hint.scbus.2.bus="1" 1337envvar hint.da.0.at="scbus0" 1338envvar hint.da.0.target="0" 1339envvar hint.da.0.unit="0" 1340envvar hint.da.1.at="scbus3" 1341envvar hint.da.1.target="1" 1342envvar hint.da.2.at="scbus2" 1343envvar hint.da.2.target="3" 1344envvar hint.sa.1.at="scbus1" 1345envvar hint.sa.1.target="6" 1346 1347# "units" (SCSI logical unit number) that are not specified are 1348# treated as if specified as LUN 0. 1349 1350# All SCSI devices allocate as many units as are required. 1351 1352# The ch driver drives SCSI Media Changer ("jukebox") devices. 1353# 1354# The da driver drives SCSI Direct Access ("disk") and Optical Media 1355# ("WORM") devices. 1356# 1357# The sa driver drives SCSI Sequential Access ("tape") devices. 1358# 1359# The cd driver drives SCSI Read Only Direct Access ("cd") devices. 1360# 1361# The ses driver drives SCSI Environment Services ("ses") and 1362# SAF-TE ("SCSI Accessible Fault-Tolerant Enclosure") devices. 1363# 1364# The pt driver drives SCSI Processor devices. 1365# 1366# The sg driver provides a passthrough API that is compatible with the 1367# Linux SG driver. It will work in conjunction with the Linuxulator 1368# to run linux SG apps. It can also stand on its own and provide 1369# source level API compatibility for porting apps to FreeBSD. 1370# 1371# Target Mode support is provided here but also requires that a SIM 1372# (SCSI Host Adapter Driver) provide support as well. 1373# 1374# The targ driver provides target mode support as a Processor type device. 1375# It exists to give the minimal context necessary to respond to Inquiry 1376# commands. There is a sample user application that shows how the rest 1377# of the command support might be done in /usr/share/examples/scsi_target. 1378# 1379# The targbh driver provides target mode support and exists to respond 1380# to incoming commands that do not otherwise have a logical unit assigned 1381# to them. 1382# 1383# The pass driver provides a passthrough API to access the CAM subsystem. 1384 1385device scbus #base SCSI code 1386device ch #SCSI media changers 1387device da #SCSI direct access devices (aka disks) 1388device sa #SCSI tapes 1389device cd #SCSI CD-ROMs 1390device ses #Enclosure Services (SES and SAF-TE) 1391device pt #SCSI processor 1392device targ #SCSI Target Mode Code 1393device targbh #SCSI Target Mode Blackhole Device 1394device pass #CAM passthrough driver 1395device sg #Linux SCSI passthrough 1396device ctl #CAM Target Layer 1397 1398# CAM OPTIONS: 1399# debugging options: 1400# CAMDEBUG Compile in all possible debugging. 1401# CAM_DEBUG_COMPILE Debug levels to compile in. 1402# CAM_DEBUG_FLAGS Debug levels to enable on boot. 1403# CAM_DEBUG_BUS Limit debugging to the given bus. 1404# CAM_DEBUG_TARGET Limit debugging to the given target. 1405# CAM_DEBUG_LUN Limit debugging to the given lun. 1406# CAM_DEBUG_DELAY Delay in us after printing each debug line. 1407# CAM_IO_STATS Publish additional CAM device statics by sysctl 1408# 1409# CAM_MAX_HIGHPOWER: Maximum number of concurrent high power (start unit) cmds 1410# SCSI_NO_SENSE_STRINGS: When defined disables sense descriptions 1411# SCSI_NO_OP_STRINGS: When defined disables opcode descriptions 1412# SCSI_DELAY: The number of MILLISECONDS to freeze the SIM (scsi adapter) 1413# queue after a bus reset, and the number of milliseconds to 1414# freeze the device queue after a bus device reset. This 1415# can be changed at boot and runtime with the 1416# kern.cam.scsi_delay tunable/sysctl. 1417options CAMDEBUG 1418options CAM_DEBUG_COMPILE=-1 1419options CAM_DEBUG_FLAGS=(CAM_DEBUG_INFO|CAM_DEBUG_PROBE|CAM_DEBUG_PERIPH) 1420options CAM_DEBUG_BUS=-1 1421options CAM_DEBUG_TARGET=-1 1422options CAM_DEBUG_LUN=-1 1423options CAM_DEBUG_DELAY=1 1424options CAM_MAX_HIGHPOWER=4 1425options SCSI_NO_SENSE_STRINGS 1426options SCSI_NO_OP_STRINGS 1427options SCSI_DELAY=5000 # Be pessimistic about Joe SCSI device 1428options CAM_IOSCHED_DYNAMIC 1429options CAM_IO_STATS 1430options CAM_TEST_FAILURE 1431 1432# Options for the CAM CDROM driver: 1433# CHANGER_MIN_BUSY_SECONDS: Guaranteed minimum time quantum for a changer LUN 1434# CHANGER_MAX_BUSY_SECONDS: Maximum time quantum per changer LUN, only 1435# enforced if there is I/O waiting for another LUN 1436# The compiled in defaults for these variables are 2 and 10 seconds, 1437# respectively. 1438# 1439# These can also be changed on the fly with the following sysctl variables: 1440# kern.cam.cd.changer.min_busy_seconds 1441# kern.cam.cd.changer.max_busy_seconds 1442# 1443options CHANGER_MIN_BUSY_SECONDS=2 1444options CHANGER_MAX_BUSY_SECONDS=10 1445 1446# Options for the CAM sequential access driver: 1447# SA_IO_TIMEOUT: Timeout for read/write/wfm operations, in minutes 1448# SA_SPACE_TIMEOUT: Timeout for space operations, in minutes 1449# SA_REWIND_TIMEOUT: Timeout for rewind operations, in minutes 1450# SA_ERASE_TIMEOUT: Timeout for erase operations, in minutes 1451# SA_1FM_AT_EOD: Default to model which only has a default one filemark at EOT. 1452options SA_IO_TIMEOUT=4 1453options SA_SPACE_TIMEOUT=60 1454options SA_REWIND_TIMEOUT=(2*60) 1455options SA_ERASE_TIMEOUT=(4*60) 1456options SA_1FM_AT_EOD 1457 1458# Optional timeout for the CAM processor target (pt) device 1459# This is specified in seconds. The default is 60 seconds. 1460options SCSI_PT_DEFAULT_TIMEOUT=60 1461 1462# Optional enable of doing SES passthrough on other devices (e.g., disks) 1463# 1464# Normally disabled because a lot of newer SCSI disks report themselves 1465# as having SES capabilities, but this can then clot up attempts to build 1466# a topology with the SES device that's on the box these drives are in.... 1467options SES_ENABLE_PASSTHROUGH 1468 1469# iSCSI 1470# 1471# iSCSI permits access to SCSI peripherals over a network connection 1472# (e.g. via a TCP/IP socket) 1473 1474device cfiscsi # CAM Target Layer iSCSI target frontend 1475device iscsi # iSCSI initiator 1476device iser # iSCSI Extensions for RDMA (iSER) initiator 1477 1478 1479##################################################################### 1480# MISCELLANEOUS DEVICES AND OPTIONS 1481 1482device pty #BSD-style compatibility pseudo ttys 1483device nmdm #back-to-back tty devices 1484device md #Memory/malloc disk 1485device snp #Snoop device - to look at pty/vty/etc.. 1486device ccd #Concatenated disk driver 1487device firmware #firmware(9) support 1488 1489# Kernel side iconv library 1490options LIBICONV 1491 1492# Size of the kernel message buffer. Should be N * pagesize. 1493options MSGBUF_SIZE=40960 1494 1495 1496##################################################################### 1497# HARDWARE BUS CONFIGURATION 1498 1499# 1500# PCI bus & PCI options: 1501# 1502device pci 1503options PCI_HP # PCI-Express native HotPlug 1504options PCI_IOV # PCI SR-IOV support 1505 1506 1507##################################################################### 1508# HARDWARE DEVICE CONFIGURATION 1509 1510# For ISA the required hints are listed. 1511# PCI, CardBus, and SD/MMC are self identifying buses, so 1512# no hints are needed. 1513 1514# 1515# Mandatory devices: 1516# 1517 1518# These options are valid for other keyboard drivers as well. 1519options KBD_DISABLE_KEYMAP_LOAD # refuse to load a keymap 1520options KBD_INSTALL_CDEV # install a CDEV entry in /dev 1521 1522# Define keyboard latency (try 200/15 for a snappy interactive console) 1523options KBD_DELAY1=200 # define initial key delay 1524options KBD_DELAY2=15 # define key delay 1525 1526device kbdmux # keyboard multiplexer 1527options KBDMUX_DFLT_KEYMAP # specify the built-in keymap 1528makeoptions KBDMUX_DFLT_KEYMAP=it.iso 1529 1530options FB_DEBUG # Frame buffer debugging 1531 1532# Enable experimental features of the syscons terminal emulator (teken). 1533options TEKEN_CONS25 # cons25-style terminal emulation 1534options TEKEN_UTF8 # UTF-8 output handling 1535 1536# The vt video console driver. 1537device vt 1538options VT_ALT_TO_ESC_HACK=1 # Prepend ESC sequence to ALT keys 1539options VT_MAXWINDOWS=16 # Number of virtual consoles 1540options VT_TWOBUTTON_MOUSE # Use right mouse button to paste 1541 1542# The following options set the maximum framebuffer size. 1543options VT_FB_MAX_HEIGHT=480 1544options VT_FB_MAX_WIDTH=640 1545 1546# The following options will let you change the default vt terminal colors. 1547options TERMINAL_NORM_ATTR=(FG_GREEN|BG_BLACK) 1548options TERMINAL_KERN_ATTR=(FG_LIGHTRED|BG_BLACK) 1549 1550# 1551# Optional devices: 1552# 1553 1554# 1555# SCSI host adapters: 1556# 1557# aacraid: Adaptec by PMC RAID controllers, Series 6/7/8 and upcoming 1558# families. Container interface, CAM required. 1559# ahc: Adaptec 274x/284x/2910/293x/294x/394x/3950x/3960x/398X/4944/ 1560# 19160x/29160x, aic7770/aic78xx 1561# ahd: Adaptec 29320/39320 Controllers. 1562# isp: Qlogic ISP 1020, 1040 and 1040B PCI SCSI host adapters, 1563# ISP 1240 Dual Ultra SCSI, ISP 1080 and 1280 (Dual) Ultra2, 1564# ISP 12160 Ultra3 SCSI, 1565# Qlogic ISP 2100 and ISP 2200 1Gb Fibre Channel host adapters. 1566# Qlogic ISP 2300 and ISP 2312 2Gb Fibre Channel host adapters. 1567# Qlogic ISP 2322 and ISP 6322 2Gb Fibre Channel host adapters. 1568# ispfw: Firmware module for Qlogic host adapters 1569# mpr: LSI-Logic MPT/Fusion Gen 3 1570# mps: LSI-Logic MPT/Fusion Gen 2 1571# mpt: LSI-Logic MPT/Fusion 53c1020 or 53c1030 Ultra4 1572# or FC9x9 Fibre Channel host adapters. 1573# sym: Symbios/Logic 53C8XX family of PCI-SCSI I/O processors: 1574# 53C810, 53C810A, 53C815, 53C825, 53C825A, 53C860, 53C875, 1575# 53C876, 53C885, 53C895, 53C895A, 53C896, 53C897, 53C1510D, 1576# 53C1010-33, 53C1010-66. 1577 1578device aacraid 1579device ahc 1580device ahd 1581device isp 1582envvar hint.isp.0.disable="1" 1583envvar hint.isp.0.role="3" 1584envvar hint.isp.0.prefer_iomap="1" 1585envvar hint.isp.0.prefer_memmap="1" 1586envvar hint.isp.0.fwload_disable="1" 1587envvar hint.isp.0.ignore_nvram="1" 1588envvar hint.isp.0.fullduplex="1" 1589envvar hint.isp.0.topology="lport" 1590envvar hint.isp.0.topology="nport" 1591envvar hint.isp.0.topology="lport-only" 1592envvar hint.isp.0.topology="nport-only" 1593# we can't get u_int64_t types, nor can we get strings if it's got 1594# a leading 0x, hence this silly dodge. 1595envvar hint.isp.0.portwnn="w50000000aaaa0000" 1596envvar hint.isp.0.nodewnn="w50000000aaaa0001" 1597device ispfw 1598device mpr # LSI-Logic MPT-Fusion 3 1599device mps # LSI-Logic MPT-Fusion 2 1600device mpt # LSI-Logic MPT-Fusion 1601device sym 1602 1603# The aic7xxx driver will attempt to use memory mapped I/O for all PCI 1604# controllers that have it configured only if this option is set. Unfortunately, 1605# this doesn't work on some motherboards, which prevents it from being the 1606# default. 1607options AHC_ALLOW_MEMIO 1608 1609# Dump the contents of the ahc controller configuration PROM. 1610options AHC_DUMP_EEPROM 1611 1612# Bitmap of units to enable targetmode operations. 1613options AHC_TMODE_ENABLE 1614 1615# Compile in Aic7xxx Debugging code. 1616options AHC_DEBUG 1617 1618# Aic7xxx driver debugging options. See sys/dev/aic7xxx/aic7xxx.h 1619options AHC_DEBUG_OPTS 1620 1621# Print register bitfields in debug output. Adds ~128k to driver 1622# See ahc(4). 1623options AHC_REG_PRETTY_PRINT 1624 1625# Compile in aic79xx debugging code. 1626options AHD_DEBUG 1627 1628# Aic79xx driver debugging options. Adds ~215k to driver. See ahd(4). 1629options AHD_DEBUG_OPTS=0xFFFFFFFF 1630 1631# Print human-readable register definitions when debugging 1632options AHD_REG_PRETTY_PRINT 1633 1634# Bitmap of units to enable targetmode operations. 1635options AHD_TMODE_ENABLE 1636 1637# Options used in dev/isp/ (Qlogic SCSI/FC driver). 1638# 1639# ISP_TARGET_MODE - enable target mode operation 1640# 1641options ISP_TARGET_MODE=1 1642# 1643# ISP_DEFAULT_ROLES - default role 1644# none=0 1645# target=1 1646# initiator=2 1647# both=3 (not supported currently) 1648# 1649# ISP_INTERNAL_TARGET (trivial internal disk target, for testing) 1650# 1651options ISP_DEFAULT_ROLES=0 1652 1653#options SYM_SETUP_SCSI_DIFF #-HVD support for 825a, 875, 885 1654 # disabled:0 (default), enabled:1 1655#options SYM_SETUP_PCI_PARITY #-PCI parity checking 1656 # disabled:0, enabled:1 (default) 1657#options SYM_SETUP_MAX_LUN #-Number of LUNs supported 1658 # default:8, range:[1..64] 1659 1660# 1661# Compaq "CISS" RAID controllers (SmartRAID 5* series) 1662# These controllers have a SCSI-like interface, and require the 1663# CAM infrastructure. 1664# 1665device ciss 1666 1667# 1668# Compaq Smart RAID, Mylex DAC960 and AMI MegaRAID controllers. Only 1669# one entry is needed; the code will find and configure all supported 1670# controllers. 1671# 1672device ida # Compaq Smart RAID 1673device mlx # Mylex DAC960 1674device mfi # LSI MegaRAID SAS 1675device mfip # LSI MegaRAID SAS passthrough, requires CAM 1676options MFI_DEBUG 1677device mrsas # LSI/Avago MegaRAID SAS/SATA, 6Gb/s and 12Gb/s 1678 1679# NVM Express 1680# 1681# nvme: PCI-express NVM Express host controllers 1682# nvmf: NVM Express over Fabrics host 1683# nvmft: NVM Express over Fabrics CAM Target Layer frontend 1684# nvmf_tcp: TCP transport for NVM Express over Fabrics 1685# nda: CAM NVMe disk driver 1686# nvd: non-CAM NVMe disk driver 1687 1688device nvme # PCI-express NVMe host driver 1689options NVME_USE_NVD=1 # Use nvd(4) instead of the CAM nda(4) driver 1690device nvmf # NVMeoF host driver 1691device nvmft # NVMeoF ctl(4) frontend 1692device nvmf_tcp # NVMeoF TCP transport 1693device nda # NVMe direct access devices (aka disks) 1694device nvd # expose NVMe namespaces as disks, depends on nvme 1695 1696# 1697# Serial ATA host controllers: 1698# 1699# ahci: Advanced Host Controller Interface (AHCI) compatible 1700# mvs: Marvell 88SX50XX/88SX60XX/88SX70XX/SoC controllers 1701# siis: SiliconImage SiI3124/SiI3132/SiI3531 controllers 1702# 1703# These drivers are part of cam(4) subsystem. They supersede less featured 1704# ata(4) subsystem drivers, supporting same hardware. 1705 1706device ahci # AHCI-compatible SATA controllers 1707device mvs # Marvell 88SX50XX/88SX60XX/88SX70XX/SoC SATA 1708device siis # SiliconImage SiI3124/SiI3132/SiI3531 SATA 1709device ada # ATA/SATA direct access devices (aka disks) 1710 1711# 1712# The 'ATA' driver supports all legacy ATA/ATAPI controllers, including 1713# PC Card devices. You only need one "device ata" for it to find all 1714# PCI and PC Card ATA/ATAPI devices on modern machines. 1715# Alternatively, individual bus and chipset drivers may be chosen by using 1716# the 'atacore' driver then selecting the drivers on a per vendor basis. 1717# For example to build a system which only supports a VIA chipset, 1718# omit 'ata' and include the 'atacore', 'atapci' and 'atavia' drivers. 1719device ata # Legacy ATA/SATA controllers 1720 1721# Modular ATA 1722#device atacore # Core ATA functionality 1723#device ataisa # ISA bus support 1724#device atapci # PCI bus support; only generic chipset support 1725 1726# PCI ATA chipsets 1727#device ataacard # ACARD 1728#device ataacerlabs # Acer Labs Inc. (ALI) 1729#device ataamd # American Micro Devices (AMD) 1730#device ataati # ATI 1731#device atacenatek # Cenatek 1732#device atacypress # Cypress 1733#device atacyrix # Cyrix 1734#device atahighpoint # HighPoint 1735#device ataintel # Intel 1736#device ataite # Integrated Technology Inc. (ITE) 1737#device atajmicron # JMicron 1738#device atamarvell # Marvell 1739#device atamicron # Micron 1740#device atanational # National 1741#device atanetcell # NetCell 1742#device atanvidia # nVidia 1743#device atapromise # Promise 1744#device ataserverworks # ServerWorks 1745#device atasiliconimage # Silicon Image Inc. (SiI) (formerly CMD) 1746#device atasis # Silicon Integrated Systems Corp.(SiS) 1747#device atavia # VIA Technologies Inc. 1748 1749# 1750# For older non-PCI, non-PnPBIOS systems, these are the hints lines to add: 1751envvar hint.ata.0.at="isa" 1752envvar hint.ata.0.port="0x1f0" 1753envvar hint.ata.0.irq="14" 1754envvar hint.ata.1.at="isa" 1755envvar hint.ata.1.port="0x170" 1756envvar hint.ata.1.irq="15" 1757 1758# 1759# uart: generic driver for serial interfaces. 1760# 1761device uart 1762 1763# Options for uart(4) 1764options UART_PPS_ON_CTS # Do time pulse capturing using CTS 1765 # instead of DCD. 1766options UART_POLL_FREQ # Set polling rate, used when hw has 1767 # no interrupt support (50 Hz default). 1768 1769# The following hint should only be used for pure ISA devices. It is not 1770# needed otherwise. Use of hints is strongly discouraged. 1771envvar hint.uart.0.at="isa" 1772 1773# The following 3 hints are used when the UART is a system device (i.e., a 1774# console or debug port), but only on platforms that don't have any other 1775# means to pass the information to the kernel. The unit number of the hint 1776# is only used to bundle the hints together. There is no relation to the 1777# unit number of the probed UART. 1778envvar hint.uart.0.port="0x3f8" 1779envvar hint.uart.0.flags="0x10" 1780envvar hint.uart.0.baud="115200" 1781 1782# `flags' for serial drivers that support consoles, like uart(4): 1783# 0x10 enable console support for this unit. Other console flags 1784# (if applicable) are ignored unless this is set. Enabling 1785# console support does not make the unit the preferred console. 1786# Boot with -h or set boot_serial=YES in the loader. 1787# Currently, at most one unit can have console support; the 1788# first one (in config file order) with this flag set is 1789# preferred. 1790# 0x80 use this port for serial line gdb support in ddb. Also known 1791# as debug port. 1792# 1793 1794# Options for serial drivers that support consoles: 1795options BREAK_TO_DEBUGGER # A BREAK/DBG on the console goes to 1796 # ddb, if available. 1797 1798# Solaris implements a new BREAK which is initiated by a character 1799# sequence CR ~ ^b which is similar to a familiar pattern used on 1800# Sun servers by the Remote Console. There are FreeBSD extensions: 1801# CR ~ ^p requests force panic and CR ~ ^r requests a clean reboot. 1802options ALT_BREAK_TO_DEBUGGER 1803 1804# Serial Communications Controller 1805# Supports the Freescale/NXP QUad Integrated and Zilog Z8530 multi-channel 1806# communications controllers. 1807device scc 1808 1809# PCI Universal Communications driver 1810# Supports various multi port PCI I/O cards. 1811device puc 1812 1813# 1814# Network interfaces: 1815# 1816# MII bus support is required for many PCI Ethernet NICs, 1817# namely those which use MII-compliant transceivers or implement 1818# transceiver control interfaces that operate like an MII. Adding 1819# "device miibus" to the kernel config pulls in support for the generic 1820# miibus API, the common support for bit-bang'ing the MII and all 1821# of the PHY drivers, including a generic one for PHYs that aren't 1822# specifically handled by an individual driver. Support for specific 1823# PHYs may be built by adding "device mii", "device mii_bitbang" if 1824# needed by the NIC driver and then adding the appropriate PHY driver. 1825device mii # Minimal MII support 1826device mii_bitbang # Common module for bit-bang'ing the MII 1827device miibus # MII support w/ bit-bang'ing and all PHYs 1828 1829device acphy # Altima Communications AC101 1830device amphy # AMD AM79c873 / Davicom DM910{1,2} 1831device atphy # Attansic/Atheros F1 1832device axphy # Asix Semiconductor AX88x9x 1833device bmtphy # Broadcom BCM5201/BCM5202 and 3Com 3c905C 1834device bnxt # Broadcom NetXtreme-C/NetXtreme-E 1835device brgphy # Broadcom BCM54xx/57xx 1000baseTX 1836device cgem # Cadence GEM Gigabit Ethernet 1837device ciphy # Cicada/Vitesse CS/VSC8xxx 1838device e1000phy # Marvell 88E1000 1000/100/10-BT 1839device gentbi # Generic 10-bit 1000BASE-{LX,SX} fiber ifaces 1840device icsphy # ICS ICS1889-1893 1841device ip1000phy # IC Plus IP1000A/IP1001 1842device jmphy # JMicron JMP211/JMP202 1843device lxtphy # Level One LXT-970 1844device nsgphy # NatSemi DP8361/DP83865/DP83891 1845device nsphy # NatSemi DP83840A 1846device nsphyter # NatSemi DP83843/DP83815 1847device pnaphy # HomePNA 1848device qsphy # Quality Semiconductor QS6612 1849device rdcphy # RDC Semiconductor R6040 1850device rgephy # RealTek 8169S/8110S/8211B/8211C 1851device rlphy # RealTek 8139 1852device rlswitch # RealTek 8305 1853device smcphy # SMSC LAN91C111 1854device tdkphy # TDK 89Q2120 1855device truephy # LSI TruePHY 1856device xmphy # XaQti XMAC II 1857 1858# ae: Support for gigabit ethernet adapters based on the Attansic/Atheros 1859# L2 PCI-Express FastEthernet controllers. 1860# age: Support for gigabit ethernet adapters based on the Attansic/Atheros 1861# L1 PCI express gigabit ethernet controllers. 1862# alc: Support for Atheros AR8131/AR8132 PCIe ethernet controllers. 1863# ale: Support for Atheros AR8121/AR8113/AR8114 PCIe ethernet controllers. 1864# ath: Atheros a/b/g WiFi adapters (requires ath_hal and wlan) 1865# bce: Broadcom NetXtreme II (BCM5706/BCM5708) PCI/PCIe Gigabit Ethernet 1866# adapters. 1867# bfe: Broadcom BCM4401 Ethernet adapter. 1868# bge: Support for gigabit ethernet adapters based on the Broadcom 1869# BCM570x family of controllers, including the 3Com 3c996-T, 1870# the Netgear GA302T, the SysKonnect SK-9D21 and SK-9D41, and 1871# the embedded gigE NICs on Dell PowerEdge 2550 servers. 1872# bnxt: Broadcom NetXtreme-C and NetXtreme-E PCIe 10/25/50G Ethernet adapters. 1873# bxe: Broadcom NetXtreme II (BCM5771X/BCM578XX) PCIe 10Gb Ethernet 1874# adapters. 1875# bwi: Broadcom BCM430* and BCM431* family of wireless adapters. 1876# bwn: Broadcom BCM43xx family of wireless adapters. 1877# cas: Sun Cassini/Cassini+ and National Semiconductor DP83065 Saturn 1878# cxgb: Chelsio T3 based 1GbE/10GbE PCIe Ethernet adapters. 1879# cxgbe:Chelsio T4, T5, and T6-based 1/10/25/40/100GbE PCIe Ethernet 1880# adapters. 1881# cxgbev: Chelsio T4, T5, and T6-based PCIe Virtual Functions. 1882# dc: Support for PCI fast ethernet adapters based on the DEC/Intel 21143 1883# and various workalikes including: 1884# the ADMtek AL981 Comet and AN985 Centaur, the ASIX Electronics 1885# AX88140A and AX88141, the Davicom DM9100 and DM9102, the Lite-On 1886# 82c168 and 82c169 PNIC, the Lite-On/Macronix LC82C115 PNIC II 1887# and the Macronix 98713/98713A/98715/98715A/98725 PMAC. This driver 1888# replaces the old al, ax, dm, pn and mx drivers. List of brands: 1889# Digital DE500-BA, Kingston KNE100TX, D-Link DFE-570TX, SOHOware SFA110, 1890# SVEC PN102-TX, CNet Pro110B, 120A, and 120B, Compex RL100-TX, 1891# LinkSys LNE100TX, LNE100TX V2.0, Jaton XpressNet, Alfa Inc GFC2204, 1892# KNE110TX. 1893# em: Intel Pro/1000 Gigabit Ethernet 82542, 82543, 82544 based adapters. 1894# fxp: Intel EtherExpress Pro/100B 1895# (hint of prefer_iomap can be done to prefer I/O instead of Mem mapping) 1896# gem: Apple GMAC/Sun ERI/Sun GEM 1897# jme: JMicron JMC260 Fast Ethernet/JMC250 Gigabit Ethernet based adapters. 1898# le: AMD Am7900 LANCE and Am79C9xx PCnet 1899# lge: Support for PCI gigabit ethernet adapters based on the Level 1 1900# LXT1001 NetCellerator chipset. This includes the D-Link DGE-500SX, 1901# SMC TigerCard 1000 (SMC9462SX), and some Addtron cards. 1902# lio: Support for Cavium 23XX Ethernet adapters 1903# malo: Marvell Libertas wireless NICs. 1904# mwl: Marvell 88W8363 802.11n wireless NICs. 1905# Requires the mwl firmware module 1906# mwlfw: Marvell 88W8363 firmware 1907# msk: Support for gigabit ethernet adapters based on the Marvell/SysKonnect 1908# Yukon II Gigabit controllers, including 88E8021, 88E8022, 88E8061, 1909# 88E8062, 88E8035, 88E8036, 88E8038, 88E8050, 88E8052, 88E8053, 1910# 88E8055, 88E8056 and D-Link 560T/550SX. 1911# mlxfw: Mellanox firmware update module. 1912# mlx5: Mellanox ConnectX-4 and ConnectX-4 LX IB and Eth shared code module. 1913# mlx5en:Mellanox ConnectX-4 and ConnectX-4 LX PCIe Ethernet adapters. 1914# my: Myson Fast Ethernet (MTD80X, MTD89X) 1915# nge: Support for PCI gigabit ethernet adapters based on the National 1916# Semiconductor DP83820 and DP83821 chipset. This includes the 1917# SMC EZ Card 1000 (SMC9462TX), D-Link DGE-500T, Asante FriendlyNet 1918# GigaNIX 1000TA and 1000TPC, the Addtron AEG320T, the Surecom 1919# EP-320G-TX and the Netgear GA622T. 1920# oce: Emulex 10 Gbit adapters (OneConnect Ethernet) 1921# ral: Ralink Technology IEEE 802.11 wireless adapter 1922# re: RealTek 8139C+/8169/816xS/811xS/8101E PCI/PCIe Ethernet adapter 1923# rl: Support for PCI fast ethernet adapters based on the RealTek 8129/8139 1924# chipset. Note that the RealTek driver defaults to using programmed 1925# I/O to do register accesses because memory mapped mode seems to cause 1926# severe lockups on SMP hardware. This driver also supports the 1927# Accton EN1207D `Cheetah' adapter, which uses a chip called 1928# the MPX 5030/5038, which is either a RealTek in disguise or a 1929# RealTek workalike. Note that the D-Link DFE-530TX+ uses the RealTek 1930# chipset and is supported by this driver, not the 'vr' driver. 1931# rtwn: RealTek wireless adapters. 1932# rtwnfw: RealTek wireless firmware. 1933# sge: Silicon Integrated Systems SiS190/191 Fast/Gigabit Ethernet adapter 1934# sis: Support for NICs based on the Silicon Integrated Systems SiS 900, 1935# SiS 7016 and NS DP83815 PCI fast ethernet controller chips. 1936# sk: Support for the SysKonnect SK-984x series PCI gigabit ethernet NICs. 1937# This includes the SK-9841 and SK-9842 single port cards (single mode 1938# and multimode fiber) and the SK-9843 and SK-9844 dual port cards 1939# (also single mode and multimode). 1940# The driver will autodetect the number of ports on the card and 1941# attach each one as a separate network interface. 1942# ste: Sundance Technologies ST201 PCI fast ethernet controller, includes 1943# the D-Link DFE-550TX. 1944# stge: Support for gigabit ethernet adapters based on the Sundance/Tamarack 1945# TC9021 family of controllers, including the Sundance ST2021/ST2023, 1946# the Sundance/Tamarack TC9021, the D-Link DL-4000 and ASUS NX1101. 1947# ti: Support for PCI gigabit ethernet NICs based on the Alteon Networks 1948# Tigon 1 and Tigon 2 chipsets. This includes the Alteon AceNIC, the 1949# 3Com 3c985, the Netgear GA620 and various others. Note that you will 1950# probably want to bump up kern.ipc.nmbclusters a lot to use this driver. 1951# vr: Support for various fast ethernet adapters based on the VIA 1952# Technologies VT3043 `Rhine I' and VT86C100A `Rhine II' chips, 1953# including the D-Link DFE520TX and D-Link DFE530TX (see 'rl' for 1954# DFE530TX+), the Hawking Technologies PN102TX, and the AOpen/Acer ALN-320. 1955# vte: DM&P Vortex86 RDC R6040 Fast Ethernet 1956# xl: Support for the 3Com 3c900, 3c905, 3c905B and 3c905C (Fast) 1957# Etherlink XL cards and integrated controllers. This includes the 1958# integrated 3c905B-TX chips in certain Dell Optiplex and Dell 1959# Precision desktop machines and the integrated 3c905-TX chips 1960# in Dell Latitude laptop docking stations. 1961# Also supported: 3Com 3c980(C)-TX, 3Com 3cSOHO100-TX, 3Com 3c450-TX 1962 1963# PCI Ethernet NICs that use the common MII bus controller code. 1964device ae # Attansic/Atheros L2 FastEthernet 1965device age # Attansic/Atheros L1 Gigabit Ethernet 1966device alc # Atheros AR8131/AR8132 Ethernet 1967device ale # Atheros AR8121/AR8113/AR8114 Ethernet 1968device bce # Broadcom BCM5706/BCM5708 Gigabit Ethernet 1969device bfe # Broadcom BCM440x 10/100 Ethernet 1970device bge # Broadcom BCM570xx Gigabit Ethernet 1971device cas # Sun Cassini/Cassini+ and NS DP83065 Saturn 1972device dc # DEC/Intel 21143 and various workalikes 1973device et # Agere ET1310 10/100/Gigabit Ethernet 1974device fxp # Intel EtherExpress PRO/100B (82557, 82558) 1975envvar hint.fxp.0.prefer_iomap="0" 1976device gem # Apple GMAC/Sun ERI/Sun GEM 1977device jme # JMicron JMC250 Gigabit/JMC260 Fast Ethernet 1978device lge # Level 1 LXT1001 gigabit Ethernet 1979device lio # Support for Cavium 23XX Ethernet adapters 1980device mlxfw # Mellanox firmware update module 1981device mlx5 # Shared code module between IB and Ethernet 1982device mlx5en # Mellanox ConnectX-4 and ConnectX-4 LX 1983device msk # Marvell/SysKonnect Yukon II Gigabit Ethernet 1984device my # Myson Fast Ethernet (MTD80X, MTD89X) 1985device nge # NatSemi DP83820 gigabit Ethernet 1986device re # RealTek 8139C+/8169/8169S/8110S 1987device rl # RealTek 8129/8139 1988device sge # Silicon Integrated Systems SiS190/191 1989device sis # Silicon Integrated Systems SiS 900/SiS 7016 1990device sk # SysKonnect SK-984x & SK-982x gigabit Ethernet 1991device ste # Sundance ST201 (D-Link DFE-550TX) 1992device stge # Sundance/Tamarack TC9021 gigabit Ethernet 1993device vr # VIA Rhine, Rhine II 1994device vte # DM&P Vortex86 RDC R6040 Fast Ethernet 1995device xl # 3Com 3c90x (``Boomerang'', ``Cyclone'') 1996 1997# PCI/PCI-X/PCIe Ethernet NICs that use iflib infrastructure 1998device iflib 1999device em # Intel Pro/1000 Gigabit Ethernet 2000device ix # Intel Pro/10Gbe PCIE Ethernet 2001device ixv # Intel Pro/10Gbe PCIE Ethernet VF 2002 2003# PCI Ethernet NICs. 2004device cxgb # Chelsio T3 10 Gigabit Ethernet 2005device cxgb_t3fw # Chelsio T3 10 Gigabit Ethernet firmware 2006device cxgbe # Chelsio T4-T6 1/10/25/40/100 Gigabit Ethernet 2007device cxgbev # Chelsio T4-T6 Virtual Functions 2008device le # AMD Am7900 LANCE and Am79C9xx PCnet 2009device mxge # Myricom Myri-10G 10GbE NIC 2010device oce # Emulex 10 GbE (OneConnect Ethernet) 2011device ti # Alteon Networks Tigon I/II gigabit Ethernet 2012 2013# PCI IEEE 802.11 Wireless NICs 2014device ath # Atheros pci/cardbus NIC's 2015device ath_hal # pci/cardbus chip support 2016#device ath_ar5210 # AR5210 chips 2017#device ath_ar5211 # AR5211 chips 2018#device ath_ar5212 # AR5212 chips 2019#device ath_rf2413 2020#device ath_rf2417 2021#device ath_rf2425 2022#device ath_rf5111 2023#device ath_rf5112 2024#device ath_rf5413 2025#device ath_ar5416 # AR5416 chips 2026# All of the AR5212 parts have a problem when paired with the AR71xx 2027# CPUS. These parts have a bug that triggers a fatal bus error on the AR71xx 2028# only. Details of the exact nature of the bug are sketchy, but some can be 2029# found at https://forum.openwrt.org/viewtopic.php?pid=70060 on pages 4, 5 and 2030# 6. This option enables this workaround. There is a performance penalty 2031# for this work around, but without it things don't work at all. The DMA 2032# from the card usually bursts 128 bytes, but on the affected CPUs, only 2033# 4 are safe. 2034options AH_RXCFG_SDMAMW_4BYTES 2035#device ath_ar9160 # AR9160 chips 2036#device ath_ar9280 # AR9280 chips 2037#device ath_ar9285 # AR9285 chips 2038device ath_rate_sample # SampleRate tx rate control for ath 2039device bwi # Broadcom BCM430* BCM431* 2040device bwn # Broadcom BCM43xx 2041device malo # Marvell Libertas wireless NICs. 2042device mwl # Marvell 88W8363 802.11n wireless NICs. 2043device mwlfw 2044device ral # Ralink Technology RT2500 wireless NICs. 2045device rtwn # Realtek wireless NICs 2046device rtwnfw 2047 2048# Use sf_buf(9) interface for jumbo buffers on ti(4) controllers. 2049#options TI_SF_BUF_JUMBO 2050# Turn on the header splitting option for the ti(4) driver firmware. This 2051# only works for Tigon II chips, and has no effect for Tigon I chips. 2052# This option requires the TI_SF_BUF_JUMBO option above. 2053#options TI_JUMBO_HDRSPLIT 2054 2055# These two options allow manipulating the mbuf cluster size and mbuf size, 2056# respectively. Be very careful with NIC driver modules when changing 2057# these from their default values, because that can potentially cause a 2058# mismatch between the mbuf size assumed by the kernel and the mbuf size 2059# assumed by a module. The only driver that currently has the ability to 2060# detect a mismatch is ti(4). 2061options MCLSHIFT=11 # mbuf cluster shift in bits, 11 == 2KB 2062options MSIZE=256 # mbuf size in bytes 2063 2064# 2065# Sound drivers 2066# 2067# sound: The generic sound driver. 2068# 2069 2070device sound 2071 2072# 2073# snd_*: Device-specific drivers. 2074# 2075# The flags of the device tell the device a bit more info about the 2076# device that normally is obtained through the PnP interface. 2077# bit 2..0 secondary DMA channel; 2078# bit 4 set if the board uses two dma channels; 2079# bit 15..8 board type, overrides autodetection; leave it 2080# zero if don't know what to put in (and you don't, 2081# since this is unsupported at the moment...). 2082# 2083# snd_als4000: Avance Logic ALS4000 PCI. 2084# snd_atiixp: ATI IXP 200/300/400 PCI. 2085# snd_cmi: CMedia CMI8338/CMI8738 PCI. 2086# snd_cs4281: Crystal Semiconductor CS4281 PCI. 2087# snd_csa: Crystal Semiconductor CS461x/428x PCI. (except 2088# 4281) 2089# snd_emu10k1: Creative EMU10K1 PCI and EMU10K2 (Audigy) PCI. 2090# snd_emu10kx: Creative SoundBlaster Live! and Audigy 2091# snd_envy24: VIA Envy24 and compatible, needs snd_spicds. 2092# snd_envy24ht: VIA Envy24HT and compatible, needs snd_spicds. 2093# snd_es137x: Ensoniq AudioPCI ES137x PCI. 2094# snd_fm801: Forte Media FM801 PCI. 2095# snd_hda: Intel High Definition Audio (Controller) and 2096# compatible. 2097# snd_hdsp: RME HDSP 9632 and HDSP 9652 2098# snd_hdspe: RME HDSPe AIO and RayDAT. 2099# snd_ich: Intel ICH AC'97 and some more audio controllers 2100# embedded in a chipset, for example nVidia 2101# nForce controllers. 2102# snd_maestro3: ESS Technology Maestro-3/Allegro PCI. 2103# snd_neomagic: Neomagic 256 AV/ZX PCI. 2104# snd_solo: ESS Solo-1x PCI. 2105# snd_spicds: SPI codec driver, needed by Envy24/Envy24HT drivers. 2106# snd_t4dwave: Trident 4DWave DX/NX PCI, Sis 7018 PCI and Acer Labs 2107# M5451 PCI. 2108# snd_uaudio: USB audio. 2109# snd_via8233: VIA VT8233x PCI. 2110# snd_via82c686: VIA VT82C686A PCI. 2111# snd_vibes: S3 Sonicvibes PCI. 2112 2113device snd_als4000 2114device snd_atiixp 2115device snd_cmi 2116device snd_cs4281 2117device snd_csa 2118device snd_emu10k1 2119device snd_emu10kx 2120device snd_envy24 2121device snd_envy24ht 2122device snd_es137x 2123device snd_fm801 2124device snd_hda 2125device snd_hdsp 2126device snd_hdspe 2127device snd_ich 2128device snd_maestro3 2129device snd_neomagic 2130device snd_solo 2131device snd_spicds 2132device snd_t4dwave 2133device snd_uaudio 2134device snd_via8233 2135device snd_via82c686 2136device snd_vibes 2137 2138# For non-PnP sound cards: 2139envvar hint.pcm.0.at="isa" 2140envvar hint.pcm.0.irq="10" 2141envvar hint.pcm.0.drq="1" 2142envvar hint.pcm.0.flags="0x0" 2143envvar hint.sbc.0.at="isa" 2144envvar hint.sbc.0.port="0x220" 2145envvar hint.sbc.0.irq="5" 2146envvar hint.sbc.0.drq="1" 2147envvar hint.sbc.0.flags="0x15" 2148envvar hint.gusc.0.at="isa" 2149envvar hint.gusc.0.port="0x220" 2150envvar hint.gusc.0.irq="5" 2151envvar hint.gusc.0.drq="1" 2152envvar hint.gusc.0.flags="0x13" 2153 2154# 2155# Following options are intended for debugging/testing purposes: 2156# 2157# SND_DEBUG Enable extra debugging code that includes 2158# sanity checking and possible increase of 2159# verbosity. 2160# 2161# SND_DIAGNOSTIC Similar in a spirit of INVARIANTS/DIAGNOSTIC, 2162# zero tolerance against inconsistencies. 2163# 2164# SND_FEEDER_MULTIFORMAT By default, only 16/32 bit feeders are compiled 2165# in. This options enable most feeder converters 2166# except for 8bit. WARNING: May bloat the kernel. 2167# 2168# SND_FEEDER_FULL_MULTIFORMAT Ditto, but includes 8bit feeders as well. 2169# 2170# SND_FEEDER_RATE_HP (feeder_rate) High precision 64bit arithmetic 2171# as much as possible (the default trying to 2172# avoid it). Possible slowdown. 2173# 2174# SND_PCM_64 (Only applicable for i386/32bit arch) 2175# Process 32bit samples through 64bit 2176# integer/arithmetic. Slight increase of dynamic 2177# range at a cost of possible slowdown. 2178# 2179# SND_OLDSTEREO Only 2 channels are allowed, effectively 2180# disabling multichannel processing. 2181# 2182options SND_DEBUG 2183options SND_DIAGNOSTIC 2184options SND_FEEDER_MULTIFORMAT 2185options SND_FEEDER_FULL_MULTIFORMAT 2186options SND_FEEDER_RATE_HP 2187options SND_PCM_64 2188options SND_OLDSTEREO 2189 2190# 2191# Cardbus 2192# 2193# cbb: pci/CardBus bridge implementing YENTA interface 2194# cardbus: CardBus slots 2195device cbb 2196device cardbus 2197 2198# 2199# MMC/SD 2200# 2201# mmc MMC/SD bus 2202# mmcsd MMC/SD memory card 2203# sdhci Generic PCI SD Host Controller 2204# rtsx Realtek SD card reader (RTS5209, RTS5227, ...) 2205device mmc 2206device mmcsd 2207device sdhci 2208device rtsx 2209 2210# 2211# SMB bus 2212# 2213# System Management Bus support is provided by the 'smbus' device. 2214# Access to the SMBus device is via the 'smb' device (/dev/smb*), 2215# which is a child of the 'smbus' device. 2216# 2217# Supported devices: 2218# smb standard I/O through /dev/smb* 2219# 2220# Supported SMB interfaces: 2221# iicsmb I2C to SMB bridge with any iicbus interface 2222# intpm Intel PIIX4 (82371AB, 82443MX) Power Management Unit 2223# alpm Acer Aladdin-IV/V/Pro2 Power Management Unit 2224# ichsmb Intel ICH SMBus controller chips (82801AA, 82801AB, 82801BA) 2225# viapm VIA VT82C586B/596B/686A and VT8233 Power Management Unit 2226# amdpm AMD 756 Power Management Unit 2227# amdsmb AMD 8111 SMBus 2.0 Controller 2228# nfpm NVIDIA nForce Power Management Unit 2229# nfsmb NVIDIA nForce2/3/4 MCP SMBus 2.0 Controller 2230# ismt Intel SMBus 2.0 controller chips (on Atom S1200, C2000) 2231# 2232device smbus # Bus support, required for smb below. 2233 2234device intpm 2235options ENABLE_ALART # Control alarm on Intel intpm driver 2236device alpm 2237device ichsmb 2238device viapm 2239device amdpm 2240device amdsmb 2241device nfpm 2242device nfsmb 2243device ismt 2244 2245device smb 2246 2247# SMBus peripheral devices 2248# 2249# jedec_dimm Asset and temperature reporting for DDR3 and DDR4 DIMMs 2250# 2251device jedec_dimm 2252 2253# I2C Bus 2254# 2255# Philips i2c bus support is provided by the `iicbus' device. 2256# 2257# Supported devices: 2258# ic i2c network interface 2259# iic i2c standard io 2260# iicsmb i2c to smb bridge. Allow i2c i/o with smb commands. 2261# iicoc simple polling driver for OpenCores I2C controller 2262# 2263# Other: 2264# iicbb generic I2C bit-banging code (needed by lpbb) 2265# 2266device iicbus # Bus support, required for ic/iic/iicsmb below. 2267device iicbb # bitbang driver; implements i2c on a pair of gpio pins 2268 2269device ic 2270device iic # userland access to i2c slave devices via ioctl(8) 2271device iicsmb # smb over i2c bridge 2272device iicoc # OpenCores I2C controller support 2273 2274# I2C bus multiplexer (mux) devices 2275device iicmux # i2c mux core driver 2276device iic_gpiomux # i2c mux hardware controlled via gpio pins 2277device ltc430x # LTC4305 and LTC4306 i2c mux chips 2278 2279# I2C peripheral devices 2280# 2281device ad7418 # Analog Devices temp and voltage sensor 2282device ads111x # Texas Instruments ADS101x and ADS111x ADCs 2283device ds1307 # Dallas DS1307 RTC and compatible 2284device ds13rtc # All Dallas/Maxim ds13xx chips 2285device ds1672 # Dallas DS1672 RTC 2286device ds3231 # Dallas DS3231 RTC + temperature 2287device fan53555 # Fairchild Semi FAN53555/SYR82x Regulator 2288device icee # AT24Cxxx and compatible EEPROMs 2289device isl12xx # Intersil ISL12xx RTC 2290device lm75 # LM75 compatible temperature sensor 2291device nxprtc # NXP RTCs: PCA/PFC212x PCA/PCF85xx 2292device rtc8583 # Epson RTC-8583 2293device s35390a # Seiko Instruments S-35390A RTC 2294device sy8106a # Silergy Corp. SY8106A buck regulator 2295 2296# Parallel-Port Bus 2297# 2298# Parallel port bus support is provided by the `ppbus' device. 2299# Multiple devices may be attached to the parallel port, devices 2300# are automatically probed and attached when found. 2301# 2302# Supported devices: 2303# lpt Parallel Printer 2304# plip Parallel network interface 2305# ppi General-purpose I/O ("Geek Port") + IEEE1284 I/O 2306# pps Pulse per second Timing Interface 2307# lpbb Philips official parallel port I2C bit-banging interface 2308# pcfclock Parallel port clock driver. 2309# 2310# Supported interfaces: 2311# ppc ISA-bus parallel port interfaces. 2312# 2313 2314options PPC_PROBE_CHIPSET # Enable chipset specific detection 2315 # (see flags in ppc(4)) 2316options DEBUG_1284 # IEEE1284 signaling protocol debug 2317options PERIPH_1284 # Makes your computer act as an IEEE1284 2318 # compliant peripheral 2319options DONTPROBE_1284 # Avoid boot detection of PnP parallel devices 2320options LPT_DEBUG # Printer driver debug 2321options PPC_DEBUG # Parallel chipset level debug 2322options PLIP_DEBUG # Parallel network IP interface debug 2323options PCFCLOCK_VERBOSE # Verbose pcfclock driver 2324options PCFCLOCK_MAX_RETRIES=5 # Maximum read tries (default 10) 2325 2326device ppc 2327envvar hint.ppc.0.at="isa" 2328envvar hint.ppc.0.irq="7" 2329device ppbus 2330device lpt 2331device plip 2332device ppi 2333device pps 2334device lpbb 2335device pcfclock 2336 2337# General Purpose I/O pins 2338device dwgpio # Synopsys DesignWare APB GPIO Controller 2339device gpio # gpio interfaces and bus support 2340device gpiobacklight # sysctl control of gpio-based backlight 2341device gpioiic # i2c via gpio bitbang 2342device gpiokeys # kbd(4) glue for gpio-based key input 2343device gpioled # led(4) gpio glue 2344device gpiopower # event handler for gpio-based powerdown 2345device gpiopps # Pulse per second input from gpio pin 2346device gpioregulator # extres/regulator glue for gpio pin 2347device gpiospi # SPI via gpio bitbang 2348device gpioths # 1-wire temp/humidity sensor on gpio pin 2349 2350# Pulse width modulation 2351device pwmbus # pwm interface and bus support 2352device pwmc # userland control access to pwm outputs 2353 2354# 2355# Etherswitch framework and drivers 2356# 2357# etherswitch The etherswitch(4) framework 2358# miiproxy Proxy device for miibus(4) functionality 2359# 2360# Switch hardware support: 2361# arswitch Atheros switches 2362# ip17x IC+ 17x family switches 2363# rtl8366r Realtek RTL8366 switches 2364# ukswitch Multi-PHY switches 2365# 2366device etherswitch 2367device miiproxy 2368device arswitch 2369device ip17x 2370device rtl8366rb 2371device ukswitch 2372 2373# Kernel BOOTP support 2374 2375options BOOTP # Use BOOTP to obtain IP address/hostname 2376 # Requires NFSCL and NFS_ROOT 2377options BOOTP_NFSROOT # NFS mount root filesystem using BOOTP info 2378options BOOTP_NFSV3 # Use NFS v3 to NFS mount root 2379options BOOTP_COMPAT # Workaround for broken bootp daemons. 2380options BOOTP_WIRED_TO=fxp0 # Use interface fxp0 for BOOTP 2381options BOOTP_BLOCKSIZE=8192 # Override NFS block size 2382 2383# 2384# Enable software watchdog routines, even if hardware watchdog is present. 2385# By default, software watchdog timer is enabled only if no hardware watchdog 2386# is present. 2387# 2388options SW_WATCHDOG 2389 2390# 2391# Add the software deadlock resolver thread. 2392# 2393options DEADLKRES 2394 2395# Set the number of sf_bufs to allocate. sf_bufs are virtual buffers 2396# for sendfile(2) that are used to map file VM pages, and normally 2397# default to a quantity that is roughly 16*MAXUSERS+512. You would 2398# typically want about 4 of these for each simultaneous file send. 2399# 2400options NSFBUFS=1024 2401 2402# 2403# Enable extra debugging code for locks. This stores the filename and 2404# line of whatever acquired the lock in the lock itself, and changes a 2405# number of function calls to pass around the relevant data. This is 2406# not at all useful unless you are debugging lock code. Note that 2407# modules should be recompiled as this option modifies KBI. 2408# 2409options DEBUG_LOCKS 2410 2411# 2412# VirtIO support 2413# 2414# The virtio entry provides a generic bus for use by the device drivers. 2415# It must be combined with an interface that communicates with the host. 2416# Multiple such interfaces are defined by the VirtIO specification 2417# including PCI and MMIO. 2418# 2419device virtio # Generic VirtIO bus (required) 2420device virtio_mmio # VirtIO MMIO Interface 2421device virtio_pci # VirtIO PCI Interface 2422device vtnet # VirtIO Ethernet device 2423device virtio_balloon # VirtIO Memory Balloon device 2424device virtio_blk # VirtIO Block device 2425device virtio_console # VirtIO Console device 2426device virtio_gpu # VirtIO GPU device 2427device virtio_random # VirtIO Entropy device 2428device virtio_scmi # VirtIO SCMI device 2429device virtio_scsi # VirtIO SCSI device 2430 2431##################################################################### 2432# HID support 2433device hid # Generic HID support 2434options HID_DEBUG # enable debug msgs 2435device hidbus # HID bus 2436device hidmap # HID to evdev mapping 2437device hidraw # Raw access driver 2438options HIDRAW_MAKE_UHID_ALIAS # install /dev/uhid alias 2439device hconf # Multitouch configuration TLC 2440device hcons # Consumer controls 2441device hgame # Generic game controllers 2442device hkbd # HID keyboard 2443device hms # HID mouse 2444device hmt # HID multitouch (MS-compatible) 2445device hpen # Generic pen driver 2446device hsctrl # System controls 2447device ps4dshock # Sony PS4 DualShock 4 gamepad driver 2448device xb360gp # XBox 360 gamepad driver 2449 2450##################################################################### 2451# USB support 2452# UHCI controller 2453device uhci 2454# OHCI controller 2455device ohci 2456# EHCI controller 2457device ehci 2458# XHCI controller 2459device xhci 2460# SL811 Controller 2461#device slhci 2462# General USB code (mandatory for USB) 2463device usb 2464# 2465# USB Double Bulk Pipe devices 2466device udbp 2467# USB temperature meter 2468device ugold 2469# USB LED 2470device uled 2471# Human Interface Device (anything with buttons and dials) 2472device uhid 2473# USB keyboard 2474device ukbd 2475# USB printer 2476device ulpt 2477# USB mass storage driver (Requires scbus and da) 2478device umass 2479# USB mass storage driver for device-side mode 2480device usfs 2481# USB support for Belkin F5U109 and Magic Control Technology serial adapters 2482device umct 2483# USB modem support 2484device umodem 2485# USB mouse 2486device ums 2487# USB touchpad(s) 2488device atp 2489device wsp 2490# eGalax USB touch screen 2491device uep 2492# Diamond Rio 500 MP3 player 2493device urio 2494# HID-over-USB driver 2495device usbhid 2496 2497# 2498# USB serial support 2499device ucom 2500# USB support for 3G modem cards by Option, Novatel, Huawei and Sierra 2501device u3g 2502# USB support for Technologies ARK3116 based serial adapters 2503device uark 2504# USB support for Belkin F5U103 and compatible serial adapters 2505device ubsa 2506# USB support for serial adapters based on the FT8U100AX and FT8U232AM 2507device uftdi 2508# USB support for some Windows CE based serial communication. 2509device uipaq 2510# USB support for Prolific PL-2303 serial adapters 2511device uplcom 2512# USB support for Silicon Laboratories CP2101/CP2102 based USB serial adapters 2513device uslcom 2514# USB Visor and Palm devices 2515device uvisor 2516# USB serial support for DDI pocket's PHS 2517device uvscom 2518# 2519# USB ethernet support 2520device uether 2521# ADMtek USB ethernet. Supports the LinkSys USB100TX, 2522# the Billionton USB100, the Melco LU-ATX, the D-Link DSB-650TX 2523# and the SMC 2202USB. Also works with the ADMtek AN986 Pegasus 2524# eval board. 2525device aue 2526 2527# ASIX Electronics AX88172 USB 2.0 ethernet driver. Used in the 2528# LinkSys USB200M and various other adapters. 2529device axe 2530# ASIX Electronics AX88178A/AX88179 USB 2.0/3.0 gigabit ethernet driver. 2531device axge 2532 2533# 2534# Devices which communicate using Ethernet over USB, particularly 2535# Communication Device Class (CDC) Ethernet specification. Supports 2536# Sharp Zaurus PDAs, some DOCSIS cable modems and so on. 2537device cdce 2538# 2539# CATC USB-EL1201A USB ethernet. Supports the CATC Netmate 2540# and Netmate II, and the Belkin F5U111. 2541device cue 2542# 2543# Kawasaki LSI ethernet. Supports the LinkSys USB10T, 2544# Entrega USB-NET-E45, Peracom Ethernet Adapter, the 2545# 3Com 3c19250, the ADS Technologies USB-10BT, the ATen UC10T, 2546# the Netgear EA101, the D-Link DSB-650, the SMC 2102USB 2547# and 2104USB, and the Corega USB-T. 2548device kue 2549# 2550# RealTek RTL8150 USB to fast ethernet. Supports the Melco LUA-KTX 2551# and the GREEN HOUSE GH-USB100B. 2552device rue 2553# 2554# Davicom DM9601E USB to fast ethernet. Supports the Corega FEther USB-TXC. 2555device udav 2556# 2557# RealTek RTL8152/RTL8153 USB Ethernet driver 2558device ure 2559# 2560# Moschip MCS7730/MCS7840 USB to fast ethernet. Supports the Sitecom LN030. 2561device mos 2562# 2563# HSxPA devices from Option N.V 2564device uhso 2565 2566# Realtek RTL8188SU/RTL8191SU/RTL8192SU wireless driver 2567device rsu 2568# 2569# Ralink Technology RT2501USB/RT2601USB wireless driver 2570device rum 2571# Ralink Technology RT2700U/RT2800U/RT3000U wireless driver 2572device run 2573# 2574# Atheros AR5523 wireless driver 2575device uath 2576# 2577# Conexant/Intersil PrismGT wireless driver 2578device upgt 2579# 2580# Ralink Technology RT2500USB wireless driver 2581device ural 2582# 2583# RNDIS USB ethernet driver 2584device urndis 2585# Realtek RTL8187B/L wireless driver 2586device urtw 2587# 2588# ZyDas ZD1211/ZD1211B wireless driver 2589device zyd 2590# 2591# Sierra USB wireless driver 2592device usie 2593 2594# 2595# debugging options for the USB subsystem 2596# 2597options USB_DEBUG 2598options U3G_DEBUG 2599 2600# options for ukbd: 2601options UKBD_DFLT_KEYMAP # specify the built-in keymap 2602makeoptions UKBD_DFLT_KEYMAP=jp.106 2603 2604# options for uplcom: 2605options UPLCOM_INTR_INTERVAL=100 # interrupt pipe interval 2606 # in milliseconds 2607 2608# options for uvscom: 2609options UVSCOM_DEFAULT_OPKTSIZE=8 # default output packet size 2610options UVSCOM_INTR_INTERVAL=100 # interrupt pipe interval 2611 # in milliseconds 2612 2613##################################################################### 2614# FireWire support 2615 2616device firewire # FireWire bus code 2617device sbp # SCSI over Firewire (Requires scbus and da) 2618device sbp_targ # SBP-2 Target mode (Requires scbus and targ) 2619device fwe # Ethernet over FireWire (non-standard!) 2620device fwip # IP over FireWire (RFC2734 and RFC3146) 2621 2622##################################################################### 2623# dcons support (Dumb Console Device) 2624 2625device dcons # dumb console driver 2626device dcons_crom # FireWire attachment 2627options DCONS_BUF_SIZE=16384 # buffer size 2628options DCONS_POLL_HZ=100 # polling rate 2629options DCONS_FORCE_CONSOLE=0 # force to be the primary console 2630options DCONS_FORCE_GDB=1 # force to be the gdb device 2631 2632##################################################################### 2633# crypto subsystem 2634# 2635# This is a port of the OpenBSD crypto framework. Include this when 2636# configuring IPSEC and when you have a h/w crypto device to accelerate 2637# user applications that link to OpenSSL. 2638# 2639# Drivers are ports from OpenBSD with some simple enhancements that have 2640# been fed back to OpenBSD. 2641 2642device crypto # core crypto support 2643 2644# Only install the cryptodev device if you are running tests, or know 2645# specifically why you need it. In most cases, it is not needed and 2646# will make things slower. 2647device cryptodev # /dev/crypto for access to h/w 2648 2649device rndtest # FIPS 140-2 entropy tester 2650 2651device ccr # Chelsio T6 2652 2653device hifn # Hifn 7951, 7781, etc. 2654options HIFN_DEBUG # enable debugging support: hw.hifn.debug 2655options HIFN_RNDTEST # enable rndtest support 2656 2657device safe # SafeNet 1141 2658options SAFE_DEBUG # enable debugging support: hw.safe.debug 2659options SAFE_RNDTEST # enable rndtest support 2660 2661##################################################################### 2662 2663 2664# 2665# Embedded system options: 2666# 2667# An embedded system might want to run something other than init. 2668options INIT_PATH=/sbin/init:/rescue/init 2669 2670# Debug options 2671options BUS_DEBUG # enable newbus debugging 2672options DEBUG_VFS_LOCKS # enable VFS lock debugging 2673options SOCKBUF_DEBUG # enable sockbuf last record/mb tail checking 2674options IFMEDIA_DEBUG # enable debugging in net/if_media.c 2675 2676# 2677# Verbose SYSINIT 2678# 2679# Make the SYSINIT process performed by mi_startup() verbose. This is very 2680# useful when porting to a new architecture. If DDB is also enabled, this 2681# will print function names instead of addresses. If defined with a value 2682# of zero, the verbose code is compiled-in but disabled by default, and can 2683# be enabled with the debug.verbose_sysinit=1 tunable. 2684options VERBOSE_SYSINIT 2685 2686##################################################################### 2687# SYSV IPC KERNEL PARAMETERS 2688# 2689# Maximum number of System V semaphores that can be used on the system at 2690# one time. 2691options SEMMNI=11 2692 2693# Total number of semaphores system wide 2694options SEMMNS=61 2695 2696# Total number of undo structures in system 2697options SEMMNU=31 2698 2699# Maximum number of System V semaphores that can be used by a single process 2700# at one time. 2701options SEMMSL=61 2702 2703# Maximum number of operations that can be outstanding on a single System V 2704# semaphore at one time. 2705options SEMOPM=101 2706 2707# Maximum number of undo operations that can be outstanding on a single 2708# System V semaphore at one time. 2709options SEMUME=11 2710 2711# Maximum number of shared memory pages system wide. 2712options SHMALL=1025 2713 2714# Maximum size, in bytes, of a single System V shared memory region. 2715options SHMMAX=(SHMMAXPGS*PAGE_SIZE+1) 2716options SHMMAXPGS=1025 2717 2718# Minimum size, in bytes, of a single System V shared memory region. 2719options SHMMIN=2 2720 2721# Maximum number of shared memory regions that can be used on the system 2722# at one time. 2723options SHMMNI=33 2724 2725# Maximum number of System V shared memory regions that can be attached to 2726# a single process at one time. 2727options SHMSEG=9 2728 2729# Set the amount of time (in seconds) the system will wait before 2730# rebooting automatically when a kernel panic occurs. If set to (-1), 2731# the system will wait indefinitely until a key is pressed on the 2732# console. 2733options PANIC_REBOOT_WAIT_TIME=16 2734 2735# Attempt to bypass the buffer cache and put data directly into the 2736# userland buffer for read operation when O_DIRECT flag is set on the 2737# file. Both offset and length of the read operation must be 2738# multiples of the physical media sector size. 2739# 2740options DIRECTIO 2741 2742# Specify a lower limit for the number of swap I/O buffers. They are 2743# (among other things) used when bypassing the buffer cache due to 2744# DIRECTIO kernel option enabled and O_DIRECT flag set on file. 2745# 2746options NSWBUF_MIN=120 2747 2748##################################################################### 2749 2750# More undocumented options for linting. 2751# Note that documenting these is not considered an affront. 2752 2753options CAM_DEBUG_DELAY 2754 2755options DEBUG 2756 2757# Kernel filelock debugging. 2758options LOCKF_DEBUG 2759 2760# System V compatible message queues 2761# Please note that the values provided here are used to test kernel 2762# building. The defaults in the sources provide almost the same numbers. 2763# MSGSSZ must be a power of 2 between 8 and 1024. 2764options MSGMNB=2049 # Max number of chars in queue 2765options MSGMNI=41 # Max number of message queue identifiers 2766options MSGSEG=2049 # Max number of message segments 2767options MSGSSZ=16 # Size of a message segment 2768options MSGTQL=41 # Max number of messages in system 2769 2770options NBUF=512 # Number of buffer headers 2771 2772options SC_DEBUG_LEVEL=5 # Syscons debug level 2773options SC_RENDER_DEBUG # syscons rendering debugging 2774 2775options VFS_BIO_DEBUG # VFS buffer I/O debugging 2776 2777options KSTACK_MAX_PAGES=32 # Maximum pages to give the kernel stack 2778options KSTACK_USAGE_PROF 2779 2780# Adaptec Array Controller driver options 2781options AAC_DEBUG # Debugging levels: 2782 # 0 - quiet, only emit warnings 2783 # 1 - noisy, emit major function 2784 # points and things done 2785 # 2 - extremely noisy, emit trace 2786 # items in loops, etc. 2787 2788# Resource Accounting 2789options RACCT 2790 2791# Resource Limits 2792options RCTL 2793 2794# Yet more undocumented options for linting. 2795options MAXFILES=999 2796 2797# Random number generator 2798# Alternative algorithm. 2799#options RANDOM_FENESTRASX 2800# Allow the CSPRNG algorithm to be loaded as a module. 2801#options RANDOM_LOADABLE 2802# Select this to allow high-rate but potentially expensive 2803# harvesting of Slab-Allocator entropy. In very high-rate 2804# situations the value of doing this is dubious at best. 2805options RANDOM_ENABLE_UMA # slab allocator 2806 2807# Select this to allow high-rate but potentially expensive 2808# harvesting of the m_next pointer in the mbuf. Note that 2809# the m_next pointer is NULL except when receiving > 4K 2810# jumbo frames or sustained bursts by way of LRO. Thus in 2811# the common case it is stirring zero in to the entropy 2812# pool. In cases where it is not NULL it is pointing to one 2813# of a small (in the thousands to 10s of thousands) number 2814# of 256 byte aligned mbufs. Hence it is, even in the best 2815# case, a poor source of entropy. And in the absence of actual 2816# runtime analysis of entropy collection may mislead the user in 2817# to believe that substantially more entropy is being collected 2818# than in fact is - leading to a different class of security 2819# risk. In high packet rate situations ethernet entropy 2820# collection is also very expensive, possibly leading to as 2821# much as a 50% drop in packets received. 2822# This option is present to maintain backwards compatibility 2823# if desired, however it cannot be recommended for use in any 2824# environment. 2825options RANDOM_ENABLE_ETHER # ether_input 2826 2827# Module to enable execution of application via emulators like QEMU 2828options IMGACT_BINMISC 2829 2830# zlib I/O stream support 2831# This enables support for compressed core dumps. 2832options GZIO 2833 2834# zstd support 2835# This enables support for Zstd compressed core dumps, GEOM_UZIP images, 2836# and is required by zfs if statically linked. 2837options ZSTDIO 2838 2839# BHND(4) drivers 2840options BHND_LOGLEVEL # Logging threshold level 2841 2842# evdev interface 2843device evdev # input event device support 2844options EVDEV_SUPPORT # evdev support in legacy drivers 2845options EVDEV_DEBUG # enable event debug msgs 2846device uinput # install /dev/uinput cdev 2847options UINPUT_DEBUG # enable uinput debug msgs 2848 2849# Encrypted kernel crash dumps. 2850options EKCD 2851 2852# Serial Peripheral Interface (SPI) support. 2853device spibus # Bus support. 2854device at45d # DataFlash driver 2855device cqspi # 2856device mx25l # SPIFlash driver 2857device n25q # 2858device spigen # Generic access to SPI devices from userland. 2859# Enable legacy /dev/spigenN name aliases for /dev/spigenX.Y devices. 2860options SPIGEN_LEGACY_CDEVNAME # legacy device names for spigen 2861 2862# Compression supports. 2863device zlib # gzip/zlib compression/decompression library 2864device xz # xz_embedded LZMA de-compression library 2865 2866# Kernel support for stats(3). 2867options STATS 2868 2869# File system monitoring 2870device filemon # file monitoring for make(1) meta-mode 2871