2 # GENERIC -- Generic kernel configuration file for FreeBSD/amd64
4 # For more information on this file, please read the config(5) manual page,
5 # and/or the handbook section on Kernel Configuration Files:
7 # https://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html
9 # The handbook is also available locally in /usr/share/doc/handbook
10 # if you've installed the doc distribution, otherwise always see the
11 # FreeBSD World Wide Web server (https://www.FreeBSD.org/) for the
14 # An exhaustive list of options and more detailed explanations of the
15 # device lines is also present in the ../../conf/NOTES and NOTES files.
16 # If you are in doubt as to the purpose or necessity of a line, check first
24 makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols
25 makeoptions WITH_CTF=1 # Run ctfconvert(1) for DTrace support
27 options SCHED_ULE # ULE scheduler
28 options PREEMPTION # Enable kernel thread preemption
29 options VIMAGE # Subsystem virtualization, e.g. VNET
30 options INET # InterNETworking
31 options INET6 # IPv6 communications protocols
32 options IPSEC # IP (v4/v6) security
33 options IPSEC_SUPPORT # Allow kldload of ipsec and tcpmd5
34 options TCP_OFFLOAD # TCP offload
35 options TCP_BLACKBOX # Enhanced TCP event logging
36 options TCP_HHOOK # hhook(9) framework for TCP
37 options TCP_RFC7413 # TCP Fast Open
38 options SCTP # Stream Control Transmission Protocol
39 options FFS # Berkeley Fast Filesystem
40 options SOFTUPDATES # Enable FFS soft updates support
41 options UFS_ACL # Support for access control lists
42 options UFS_DIRHASH # Improve performance on big directories
43 options UFS_GJOURNAL # Enable gjournal-based UFS journaling
44 options QUOTA # Enable disk quotas for UFS
45 options MD_ROOT # MD is a potential root device
46 options NFSCL # Network Filesystem Client
47 options NFSD # Network Filesystem Server
48 options NFSLOCKD # Network Lock Manager
49 options NFS_ROOT # NFS usable as /, requires NFSCL
50 options MSDOSFS # MSDOS Filesystem
51 options CD9660 # ISO 9660 Filesystem
52 options PROCFS # Process filesystem (requires PSEUDOFS)
53 options PSEUDOFS # Pseudo-filesystem framework
54 options GEOM_PART_GPT # GUID Partition Tables.
55 options GEOM_RAID # Soft RAID functionality.
56 options GEOM_LABEL # Provides labelization
57 options COMPAT_FREEBSD32 # Compatible with i386 binaries
58 options COMPAT_FREEBSD4 # Compatible with FreeBSD4
59 options COMPAT_FREEBSD5 # Compatible with FreeBSD5
60 options COMPAT_FREEBSD6 # Compatible with FreeBSD6
61 options COMPAT_FREEBSD7 # Compatible with FreeBSD7
62 options COMPAT_FREEBSD9 # Compatible with FreeBSD9
63 options COMPAT_FREEBSD10 # Compatible with FreeBSD10
64 options COMPAT_FREEBSD11 # Compatible with FreeBSD11
65 options SCSI_DELAY=5000 # Delay (in ms) before probing SCSI
66 options KTRACE # ktrace(1) support
67 options STACK # stack(9) support
68 options SYSVSHM # SYSV-style shared memory
69 options SYSVMSG # SYSV-style message queues
70 options SYSVSEM # SYSV-style semaphores
71 options _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time extensions
72 options PRINTF_BUFR_SIZE=128 # Prevent printf output being interspersed.
73 options KBD_INSTALL_CDEV # install a CDEV entry in /dev
74 options HWPMC_HOOKS # Necessary kernel hooks for hwpmc(4)
75 options AUDIT # Security event auditing
76 options CAPABILITY_MODE # Capsicum capability mode
77 options CAPABILITIES # Capsicum capabilities
78 options MAC # TrustedBSD MAC Framework
79 options KDTRACE_FRAME # Ensure frames are compiled in
80 options KDTRACE_HOOKS # Kernel DTrace hooks
81 options DDB_CTF # Kernel ELF linker loads CTF data
82 options INCLUDE_CONFIG_FILE # Include this file in kernel
83 options RACCT # Resource accounting framework
84 options RACCT_DEFAULT_TO_DISABLED # Set kern.racct.enable=0 by default
85 options RCTL # Resource limits
87 # Debugging support. Always need this:
88 options KDB # Enable kernel debugger support.
89 options KDB_TRACE # Print a stack trace for a panic.
90 # For full debugger support use (turn off in stable branch):
91 options BUF_TRACKING # Track buffer history
92 options DDB # Support DDB.
93 options FULL_BUF_TRACKING # Track more buffer history
94 options GDB # Support remote GDB.
95 options DEADLKRES # Enable the deadlock resolver
96 options INVARIANTS # Enable calls of extra sanity checking
97 options INVARIANT_SUPPORT # Extra sanity checks of internal structures, required by INVARIANTS
98 options WITNESS # Enable checks to detect deadlocks and cycles
99 options WITNESS_SKIPSPIN # Don't run witness on spinlocks for speed
100 options MALLOC_DEBUG_MAXZONES=8 # Separate malloc(9) zones
102 # Kernel dump features.
103 options EKCD # Support for encrypted kernel dumps
104 options GZIO # gzip-compressed kernel and user dumps
105 options ZSTDIO # zstd-compressed kernel and user dumps
106 options NETDUMP # netdump(4) client support
108 # Make an SMP-capable kernel by default
109 options SMP # Symmetric MultiProcessor Kernel
110 options EARLY_AP_STARTUP
112 # CPU frequency control
119 options PCI_HP # PCI-Express native HotPlug
120 options PCI_IOV # PCI SR-IOV support
126 device ahci # AHCI-compatible SATA controllers
127 device ata # Legacy ATA/SATA controllers
128 device mvs # Marvell 88SX50XX/88SX60XX/88SX70XX/SoC SATA
129 device siis # SiliconImage SiI3124/SiI3132/SiI3531 SATA
132 device ahc # AHA2940 and onboard AIC7xxx devices
133 device ahd # AHA39320/29320 and onboard AIC79xx devices
134 device esp # AMD Am53C974 (Tekram DC-390(T))
135 device hptiop # Highpoint RocketRaid 3xxx series
136 device isp # Qlogic family
137 #device ispfw # Firmware for QLogic HBAs- normally a module
138 device mpt # LSI-Logic MPT-Fusion
139 device mps # LSI-Logic MPT-Fusion 2
140 device mpr # LSI-Logic MPT-Fusion 3
141 #device ncr # NCR/Symbios Logic
142 device sym # NCR/Symbios Logic (newer chipsets + those of `ncr')
143 device trm # Tekram DC395U/UW/F DC315U adapters
145 device adv # Advansys SCSI adapters
146 device adw # Advansys wide SCSI adapters
147 device aic # Adaptec 15[012]x SCSI adapters, AIC-6[23]60.
148 device bt # Buslogic/Mylex MultiMaster SCSI adapters
149 device isci # Intel C600 SAS controller
150 device ocs_fc # Emulex FC adapters
152 # ATA/SCSI peripherals
153 device scbus # SCSI bus (required for ATA/SCSI)
154 device ch # SCSI media changers
155 device da # Direct Access (disks)
156 device sa # Sequential Access (tape etc)
158 device pass # Passthrough device (direct ATA/SCSI access)
159 device ses # Enclosure Services (SES and SAF-TE)
160 #device ctl # CAM Target Layer
162 # RAID controllers interfaced to the SCSI subsystem
163 device amr # AMI MegaRAID
164 device arcmsr # Areca SATA II RAID
165 device ciss # Compaq Smart RAID 5*
166 device dpt # DPT Smartcache III, IV - See NOTES for options
167 device hptmv # Highpoint RocketRAID 182x
168 device hptnr # Highpoint DC7280, R750
169 device hptrr # Highpoint RocketRAID 17xx, 22xx, 23xx, 25xx
170 device hpt27xx # Highpoint RocketRAID 27xx
171 device iir # Intel Integrated RAID
172 device ips # IBM (Adaptec) ServeRAID
173 device mly # Mylex AcceleRAID/eXtremeRAID
174 device twa # 3ware 9000 series PATA/SATA RAID
175 device smartpqi # Microsemi smartpqi driver
176 device tws # LSI 3ware 9750 SATA+SAS 6Gb/s RAID controller
179 device aac # Adaptec FSA RAID
180 device aacp # SCSI passthrough for aac (requires CAM)
181 device aacraid # Adaptec by PMC RAID
182 device ida # Compaq Smart RAID
183 device mfi # LSI MegaRAID SAS
184 device mlx # Mylex DAC960 family
185 device mrsas # LSI/Avago MegaRAID SAS/SATA, 6Gb/s and 12Gb/s
186 device pmspcv # PMC-Sierra SAS/SATA Controller driver
187 #XXX pointer/int warnings
188 #device pst # Promise Supertrak SX6000
189 device twe # 3ware ATA RAID
191 # NVM Express (NVMe) support
192 device nvme # base NVMe driver
193 device nvd # expose NVMe namespaces as disks, depends on nvme
195 # atkbdc0 controls both the keyboard and the PS/2 mouse
196 device atkbdc # AT keyboard controller
197 device atkbd # AT keyboard
198 device psm # PS/2 mouse
200 device kbdmux # keyboard multiplexer
202 device vga # VGA video card driver
203 options VESA # Add support for VESA BIOS Extensions (VBE)
205 device splash # Splash screen and screen saver support
207 # syscons is the default console driver, resembling an SCO console
209 options SC_PIXEL_MODE # add support for the raster text mode
211 # vt is the new video console driver
216 device agp # support several AGP chipsets
218 # PCCARD (PCMCIA) support
219 # PCMCIA and cardbus bridge support
220 device cbb # cardbus (yenta) bridge
221 device pccard # PC Card (16-bit) bus
222 device cardbus # CardBus (32-bit) bus
225 device uart # Generic UART driver
229 device ppbus # Parallel port bus (required)
231 device ppi # Parallel port interface device
232 #device vpo # Requires scbus and da
234 device puc # Multi I/O cards and multi-channel UARTs
237 device bxe # Broadcom NetXtreme II BCM5771X/BCM578XX 10GbE
238 device de # DEC/Intel DC21x4x (``Tulip'')
239 device em # Intel PRO/1000 Gigabit Ethernet Family
240 device ix # Intel PRO/10GbE PCIE PF Ethernet
241 device ixv # Intel PRO/10GbE PCIE VF Ethernet
242 device ixl # Intel XL710 40Gbe PCIE Ethernet
243 #options IXL_IW # Enable iWARP Client Interface in ixl(4)
244 #device ixlv # Intel XL710 40Gbe VF PCIE Ethernet
245 device le # AMD Am7900 LANCE and Am79C9xx PCnet
246 device ti # Alteon Networks Tigon I/II gigabit Ethernet
247 device txp # 3Com 3cR990 (``Typhoon'')
248 device vx # 3Com 3c590, 3c595 (``Vortex'')
250 # PCI Ethernet NICs that use the common MII bus controller code.
251 # NOTE: Be sure to keep the 'device miibus' line in order to use these NICs!
252 device miibus # MII bus support
253 device ae # Attansic/Atheros L2 FastEthernet
254 device age # Attansic/Atheros L1 Gigabit Ethernet
255 device alc # Atheros AR8131/AR8132 Ethernet
256 device ale # Atheros AR8121/AR8113/AR8114 Ethernet
257 device bce # Broadcom BCM5706/BCM5708 Gigabit Ethernet
258 device bfe # Broadcom BCM440x 10/100 Ethernet
259 device bge # Broadcom BCM570xx Gigabit Ethernet
260 device cas # Sun Cassini/Cassini+ and NS DP83065 Saturn
261 device dc # DEC/Intel 21143 and various workalikes
262 device et # Agere ET1310 10/100/Gigabit Ethernet
263 device fxp # Intel EtherExpress PRO/100B (82557, 82558)
264 device gem # Sun GEM/Sun ERI/Apple GMAC
265 device hme # Sun HME (Happy Meal Ethernet)
266 device jme # JMicron JMC250 Gigabit/JMC260 Fast Ethernet
267 device lge # Level 1 LXT1001 gigabit Ethernet
268 device msk # Marvell/SysKonnect Yukon II Gigabit Ethernet
269 device nfe # nVidia nForce MCP on-board Ethernet
270 device nge # NatSemi DP83820 gigabit Ethernet
271 device pcn # AMD Am79C97x PCI 10/100 (precedence over 'le')
272 device re # RealTek 8139C+/8169/8169S/8110S
273 device rl # RealTek 8129/8139
274 device sf # Adaptec AIC-6915 (``Starfire'')
275 device sge # Silicon Integrated Systems SiS190/191
276 device sis # Silicon Integrated Systems SiS 900/SiS 7016
277 device sk # SysKonnect SK-984x & SK-982x gigabit Ethernet
278 device ste # Sundance ST201 (D-Link DFE-550TX)
279 device stge # Sundance/Tamarack TC9021 gigabit Ethernet
280 device tl # Texas Instruments ThunderLAN
281 device tx # SMC EtherPower II (83c170 ``EPIC'')
282 device vge # VIA VT612x gigabit Ethernet
283 device vr # VIA Rhine, Rhine II
284 device wb # Winbond W89C840F
285 device xl # 3Com 3c90x (``Boomerang'', ``Cyclone'')
288 device wlan # 802.11 support
289 options IEEE80211_DEBUG # enable debug msgs
290 options IEEE80211_AMPDU_AGE # age frames in AMPDU reorder q's
291 options IEEE80211_SUPPORT_MESH # enable 802.11s draft support
292 device wlan_wep # 802.11 WEP support
293 device wlan_ccmp # 802.11 CCMP support
294 device wlan_tkip # 802.11 TKIP support
295 device wlan_amrr # AMRR transmit rate control algorithm
296 device an # Aironet 4500/4800 802.11 wireless NICs.
297 device ath # Atheros NICs
298 device ath_pci # Atheros pci/cardbus glue
299 device ath_hal # pci/cardbus chip support
300 options AH_SUPPORT_AR5416 # enable AR5416 tx/rx descriptors
301 options AH_AR5416_INTERRUPT_MITIGATION # AR5416 interrupt mitigation
302 options ATH_ENABLE_11N # Enable 802.11n support for AR5416 and later
303 device ath_rate_sample # SampleRate tx rate control for ath
304 #device bwi # Broadcom BCM430x/BCM431x wireless NICs.
305 #device bwn # Broadcom BCM43xx wireless NICs.
306 device ipw # Intel 2100 wireless NICs.
307 device iwi # Intel 2200BG/2225BG/2915ABG wireless NICs.
308 device iwn # Intel 4965/1000/5000/6000 wireless NICs.
309 device malo # Marvell Libertas wireless NICs.
310 device mwl # Marvell 88W8363 802.11n wireless NICs.
311 device ral # Ralink Technology RT2500 wireless NICs.
312 device wi # WaveLAN/Intersil/Symbol 802.11 wireless NICs.
313 device wpi # Intel 3945ABG wireless NICs.
316 device loop # Network loopback
317 device random # Entropy device
318 device padlock_rng # VIA Padlock RNG
319 device rdrand_rng # Intel Bull Mountain RNG
320 device ether # Ethernet support
321 device vlan # 802.1Q VLAN support
322 device tun # Packet tunnel.
323 device md # Memory "disks"
324 device gif # IPv6 and IPv4 tunneling
325 device firmware # firmware assist module
327 # The `bpf' device enables the Berkeley Packet Filter.
328 # Be aware of the administrative consequences of enabling this!
329 # Note that 'bpf' is required for DHCP.
330 device bpf # Berkeley packet filter
333 options USB_DEBUG # enable debug msgs
334 device uhci # UHCI PCI->USB interface
335 device ohci # OHCI PCI->USB interface
336 device ehci # EHCI PCI->USB interface (USB 2.0)
337 device xhci # XHCI PCI->USB interface (USB 3.0)
338 device usb # USB Bus (required)
339 device ukbd # Keyboard
340 device umass # Disks/Mass storage - Requires scbus and da
343 device sound # Generic sound driver (required)
344 device snd_cmi # CMedia CMI8338/CMI8738
345 device snd_csa # Crystal Semiconductor CS461x/428x
346 device snd_emu10kx # Creative SoundBlaster Live! and Audigy
347 device snd_es137x # Ensoniq AudioPCI ES137x
348 device snd_hda # Intel High Definition Audio
349 device snd_ich # Intel, NVidia and other ICH AC'97 Audio
350 device snd_via8233 # VIA VT8233x Audio
353 device mmc # MMC/SD bus
354 device mmcsd # MMC/SD memory card
355 device sdhci # Generic PCI SD Host Controller
358 device virtio # Generic VirtIO bus (required)
359 device virtio_pci # VirtIO PCI device
360 device vtnet # VirtIO Ethernet device
361 device virtio_blk # VirtIO Block device
362 device virtio_scsi # VirtIO SCSI device
363 device virtio_balloon # VirtIO Memory Balloon device
365 # HyperV drivers and enhancement support
366 device hyperv # HyperV drivers
368 # Xen HVM Guest Optimizations
369 # NOTE: XENHVM depends on xenpci. They must be added or removed together.
370 options XENHVM # Xen HVM kernel infrastructure
371 device xenpci # Xen HVM Hypervisor services driver
374 device vmx # VMware VMXNET3 Ethernet
376 # Netmap provides direct access to TX/RX rings on supported NICs
377 device netmap # netmap(4) support
379 # The crypto framework is required by IPSEC
380 device crypto # Required by IPSEC