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 # http://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 (http://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 INET # InterNETworking
30 options INET6 # IPv6 communications protocols
31 options IPSEC # IP (v4/v6) security
32 options IPSEC_SUPPORT # Allow kldload of ipsec and tcpmd5
33 options TCP_OFFLOAD # TCP offload
34 options TCP_HHOOK # hhook(9) framework for TCP
35 options SCTP # Stream Control Transmission Protocol
36 options FFS # Berkeley Fast Filesystem
37 options SOFTUPDATES # Enable FFS soft updates support
38 options UFS_ACL # Support for access control lists
39 options UFS_DIRHASH # Improve performance on big directories
40 options UFS_GJOURNAL # Enable gjournal-based UFS journaling
41 options QUOTA # Enable disk quotas for UFS
42 options MD_ROOT # MD is a potential root device
43 options NFSCL # Network Filesystem Client
44 options NFSD # Network Filesystem Server
45 options NFSLOCKD # Network Lock Manager
46 options NFS_ROOT # NFS usable as /, requires NFSCL
47 options MSDOSFS # MSDOS Filesystem
48 options CD9660 # ISO 9660 Filesystem
49 options PROCFS # Process filesystem (requires PSEUDOFS)
50 options PSEUDOFS # Pseudo-filesystem framework
51 options GEOM_PART_GPT # GUID Partition Tables.
52 options GEOM_RAID # Soft RAID functionality.
53 options GEOM_LABEL # Provides labelization
54 options COMPAT_FREEBSD32 # Compatible with i386 binaries
55 options COMPAT_FREEBSD4 # Compatible with FreeBSD4
56 options COMPAT_FREEBSD5 # Compatible with FreeBSD5
57 options COMPAT_FREEBSD6 # Compatible with FreeBSD6
58 options COMPAT_FREEBSD7 # Compatible with FreeBSD7
59 options COMPAT_FREEBSD9 # Compatible with FreeBSD9
60 options COMPAT_FREEBSD10 # Compatible with FreeBSD10
61 options COMPAT_FREEBSD11 # Compatible with FreeBSD11
62 options SCSI_DELAY=5000 # Delay (in ms) before probing SCSI
63 options KTRACE # ktrace(1) support
64 options STACK # stack(9) support
65 options SYSVSHM # SYSV-style shared memory
66 options SYSVMSG # SYSV-style message queues
67 options SYSVSEM # SYSV-style semaphores
68 options _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time extensions
69 options PRINTF_BUFR_SIZE=128 # Prevent printf output being interspersed.
70 options KBD_INSTALL_CDEV # install a CDEV entry in /dev
71 options HWPMC_HOOKS # Necessary kernel hooks for hwpmc(4)
72 options AUDIT # Security event auditing
73 options CAPABILITY_MODE # Capsicum capability mode
74 options CAPABILITIES # Capsicum capabilities
75 options MAC # TrustedBSD MAC Framework
76 options KDTRACE_FRAME # Ensure frames are compiled in
77 options KDTRACE_HOOKS # Kernel DTrace hooks
78 options DDB_CTF # Kernel ELF linker loads CTF data
79 options INCLUDE_CONFIG_FILE # Include this file in kernel
80 options RACCT # Resource accounting framework
81 options RACCT_DEFAULT_TO_DISABLED # Set kern.racct.enable=0 by default
82 options RCTL # Resource limits
84 # Debugging support. Always need this:
85 options KDB # Enable kernel debugger support.
86 options KDB_TRACE # Print a stack trace for a panic.
87 # For full debugger support use (turn off in stable branch):
88 options BUF_TRACKING # Track buffer history
89 options DDB # Support DDB.
90 options FULL_BUF_TRACKING # Track more buffer history
91 options GDB # Support remote GDB.
92 options DEADLKRES # Enable the deadlock resolver
93 options INVARIANTS # Enable calls of extra sanity checking
94 options INVARIANT_SUPPORT # Extra sanity checks of internal structures, required by INVARIANTS
95 options WITNESS # Enable checks to detect deadlocks and cycles
96 options WITNESS_SKIPSPIN # Don't run witness on spinlocks for speed
97 options MALLOC_DEBUG_MAXZONES=8 # Separate malloc(9) zones
99 # Make an SMP-capable kernel by default
100 options SMP # Symmetric MultiProcessor Kernel
101 options DEVICE_NUMA # I/O Device Affinity
102 options EARLY_AP_STARTUP
104 # CPU frequency control
111 options PCI_HP # PCI-Express native HotPlug
112 options PCI_IOV # PCI SR-IOV support
118 device ahci # AHCI-compatible SATA controllers
119 device ata # Legacy ATA/SATA controllers
120 device mvs # Marvell 88SX50XX/88SX60XX/88SX70XX/SoC SATA
121 device siis # SiliconImage SiI3124/SiI3132/SiI3531 SATA
124 device ahc # AHA2940 and onboard AIC7xxx devices
125 options AHC_REG_PRETTY_PRINT # Print register bitfields in debug
126 # output. Adds ~128k to driver.
127 device ahd # AHA39320/29320 and onboard AIC79xx devices
128 options AHD_REG_PRETTY_PRINT # Print register bitfields in debug
129 # output. Adds ~215k to driver.
130 device esp # AMD Am53C974 (Tekram DC-390(T))
131 device hptiop # Highpoint RocketRaid 3xxx series
132 device isp # Qlogic family
133 #device ispfw # Firmware for QLogic HBAs- normally a module
134 device mpt # LSI-Logic MPT-Fusion
135 device mps # LSI-Logic MPT-Fusion 2
136 device mpr # LSI-Logic MPT-Fusion 3
137 #device ncr # NCR/Symbios Logic
138 device sym # NCR/Symbios Logic (newer chipsets + those of `ncr')
139 device trm # Tekram DC395U/UW/F DC315U adapters
141 device adv # Advansys SCSI adapters
142 device adw # Advansys wide SCSI adapters
143 device aic # Adaptec 15[012]x SCSI adapters, AIC-6[23]60.
144 device bt # Buslogic/Mylex MultiMaster SCSI adapters
145 device isci # Intel C600 SAS controller
147 # ATA/SCSI peripherals
148 device scbus # SCSI bus (required for ATA/SCSI)
149 device ch # SCSI media changers
150 device da # Direct Access (disks)
151 device sa # Sequential Access (tape etc)
153 device pass # Passthrough device (direct ATA/SCSI access)
154 device ses # Enclosure Services (SES and SAF-TE)
155 #device ctl # CAM Target Layer
157 # RAID controllers interfaced to the SCSI subsystem
158 device amr # AMI MegaRAID
159 device arcmsr # Areca SATA II RAID
160 device ciss # Compaq Smart RAID 5*
161 device dpt # DPT Smartcache III, IV - See NOTES for options
162 device hptmv # Highpoint RocketRAID 182x
163 device hptnr # Highpoint DC7280, R750
164 device hptrr # Highpoint RocketRAID 17xx, 22xx, 23xx, 25xx
165 device hpt27xx # Highpoint RocketRAID 27xx
166 device iir # Intel Integrated RAID
167 device ips # IBM (Adaptec) ServeRAID
168 device mly # Mylex AcceleRAID/eXtremeRAID
169 device twa # 3ware 9000 series PATA/SATA RAID
170 device tws # LSI 3ware 9750 SATA+SAS 6Gb/s RAID controller
173 device aac # Adaptec FSA RAID
174 device aacp # SCSI passthrough for aac (requires CAM)
175 device aacraid # Adaptec by PMC RAID
176 device ida # Compaq Smart RAID
177 device mfi # LSI MegaRAID SAS
178 device mlx # Mylex DAC960 family
179 device mrsas # LSI/Avago MegaRAID SAS/SATA, 6Gb/s and 12Gb/s
180 device pmspcv # PMC-Sierra SAS/SATA Controller driver
181 #XXX pointer/int warnings
182 #device pst # Promise Supertrak SX6000
183 device twe # 3ware ATA RAID
185 # NVM Express (NVMe) support
186 device nvme # base NVMe driver
187 device nvd # expose NVMe namespaces as disks, depends on nvme
189 # atkbdc0 controls both the keyboard and the PS/2 mouse
190 device atkbdc # AT keyboard controller
191 device atkbd # AT keyboard
192 device psm # PS/2 mouse
194 device kbdmux # keyboard multiplexer
196 device vga # VGA video card driver
197 options VESA # Add support for VESA BIOS Extensions (VBE)
199 device splash # Splash screen and screen saver support
201 # syscons is the default console driver, resembling an SCO console
203 options SC_PIXEL_MODE # add support for the raster text mode
205 # vt is the new video console driver
210 device agp # support several AGP chipsets
212 # PCCARD (PCMCIA) support
213 # PCMCIA and cardbus bridge support
214 device cbb # cardbus (yenta) bridge
215 device pccard # PC Card (16-bit) bus
216 device cardbus # CardBus (32-bit) bus
219 device uart # Generic UART driver
223 device ppbus # Parallel port bus (required)
225 device ppi # Parallel port interface device
226 #device vpo # Requires scbus and da
228 device puc # Multi I/O cards and multi-channel UARTs
231 device bxe # Broadcom NetXtreme II BCM5771X/BCM578XX 10GbE
232 device de # DEC/Intel DC21x4x (``Tulip'')
233 device em # Intel PRO/1000 Gigabit Ethernet Family
234 device ix # Intel PRO/10GbE PCIE PF Ethernet
235 device ixv # Intel PRO/10GbE PCIE VF Ethernet
236 device ixl # Intel XL710 40Gbe PCIE Ethernet
237 options IXL_IW # Enable iWARP Client Interface in ixl(4)
238 device ixlv # Intel XL710 40Gbe VF PCIE Ethernet
239 device le # AMD Am7900 LANCE and Am79C9xx PCnet
240 device ti # Alteon Networks Tigon I/II gigabit Ethernet
241 device txp # 3Com 3cR990 (``Typhoon'')
242 device vx # 3Com 3c590, 3c595 (``Vortex'')
244 # PCI Ethernet NICs that use the common MII bus controller code.
245 # NOTE: Be sure to keep the 'device miibus' line in order to use these NICs!
246 device miibus # MII bus support
247 device ae # Attansic/Atheros L2 FastEthernet
248 device age # Attansic/Atheros L1 Gigabit Ethernet
249 device alc # Atheros AR8131/AR8132 Ethernet
250 device ale # Atheros AR8121/AR8113/AR8114 Ethernet
251 device bce # Broadcom BCM5706/BCM5708 Gigabit Ethernet
252 device bfe # Broadcom BCM440x 10/100 Ethernet
253 device bge # Broadcom BCM570xx Gigabit Ethernet
254 device cas # Sun Cassini/Cassini+ and NS DP83065 Saturn
255 device dc # DEC/Intel 21143 and various workalikes
256 device et # Agere ET1310 10/100/Gigabit Ethernet
257 device fxp # Intel EtherExpress PRO/100B (82557, 82558)
258 device gem # Sun GEM/Sun ERI/Apple GMAC
259 device hme # Sun HME (Happy Meal Ethernet)
260 device jme # JMicron JMC250 Gigabit/JMC260 Fast Ethernet
261 device lge # Level 1 LXT1001 gigabit Ethernet
262 device msk # Marvell/SysKonnect Yukon II Gigabit Ethernet
263 device nfe # nVidia nForce MCP on-board Ethernet
264 device nge # NatSemi DP83820 gigabit Ethernet
265 device pcn # AMD Am79C97x PCI 10/100 (precedence over 'le')
266 device re # RealTek 8139C+/8169/8169S/8110S
267 device rl # RealTek 8129/8139
268 device sf # Adaptec AIC-6915 (``Starfire'')
269 device sge # Silicon Integrated Systems SiS190/191
270 device sis # Silicon Integrated Systems SiS 900/SiS 7016
271 device sk # SysKonnect SK-984x & SK-982x gigabit Ethernet
272 device ste # Sundance ST201 (D-Link DFE-550TX)
273 device stge # Sundance/Tamarack TC9021 gigabit Ethernet
274 device tl # Texas Instruments ThunderLAN
275 device tx # SMC EtherPower II (83c170 ``EPIC'')
276 device vge # VIA VT612x gigabit Ethernet
277 device vr # VIA Rhine, Rhine II
278 device wb # Winbond W89C840F
279 device xl # 3Com 3c90x (``Boomerang'', ``Cyclone'')
282 device wlan # 802.11 support
283 options IEEE80211_DEBUG # enable debug msgs
284 options IEEE80211_AMPDU_AGE # age frames in AMPDU reorder q's
285 options IEEE80211_SUPPORT_MESH # enable 802.11s draft support
286 device wlan_wep # 802.11 WEP support
287 device wlan_ccmp # 802.11 CCMP support
288 device wlan_tkip # 802.11 TKIP support
289 device wlan_amrr # AMRR transmit rate control algorithm
290 device an # Aironet 4500/4800 802.11 wireless NICs.
291 device ath # Atheros NICs
292 device ath_pci # Atheros pci/cardbus glue
293 device ath_hal # pci/cardbus chip support
294 options AH_SUPPORT_AR5416 # enable AR5416 tx/rx descriptors
295 options AH_AR5416_INTERRUPT_MITIGATION # AR5416 interrupt mitigation
296 options ATH_ENABLE_11N # Enable 802.11n support for AR5416 and later
297 device ath_rate_sample # SampleRate tx rate control for ath
298 #device bwi # Broadcom BCM430x/BCM431x wireless NICs.
299 #device bwn # Broadcom BCM43xx wireless NICs.
300 device ipw # Intel 2100 wireless NICs.
301 device iwi # Intel 2200BG/2225BG/2915ABG wireless NICs.
302 device iwn # Intel 4965/1000/5000/6000 wireless NICs.
303 device malo # Marvell Libertas wireless NICs.
304 device mwl # Marvell 88W8363 802.11n wireless NICs.
305 device ral # Ralink Technology RT2500 wireless NICs.
306 device wi # WaveLAN/Intersil/Symbol 802.11 wireless NICs.
307 device wpi # Intel 3945ABG wireless NICs.
310 device loop # Network loopback
311 device random # Entropy device
312 device padlock_rng # VIA Padlock RNG
313 device rdrand_rng # Intel Bull Mountain RNG
314 device ether # Ethernet support
315 device vlan # 802.1Q VLAN support
316 device tun # Packet tunnel.
317 device md # Memory "disks"
318 device gif # IPv6 and IPv4 tunneling
319 device firmware # firmware assist module
321 # The `bpf' device enables the Berkeley Packet Filter.
322 # Be aware of the administrative consequences of enabling this!
323 # Note that 'bpf' is required for DHCP.
324 device bpf # Berkeley packet filter
327 options USB_DEBUG # enable debug msgs
328 device uhci # UHCI PCI->USB interface
329 device ohci # OHCI PCI->USB interface
330 device ehci # EHCI PCI->USB interface (USB 2.0)
331 device xhci # XHCI PCI->USB interface (USB 3.0)
332 device usb # USB Bus (required)
333 device ukbd # Keyboard
334 device umass # Disks/Mass storage - Requires scbus and da
337 device sound # Generic sound driver (required)
338 device snd_cmi # CMedia CMI8338/CMI8738
339 device snd_csa # Crystal Semiconductor CS461x/428x
340 device snd_emu10kx # Creative SoundBlaster Live! and Audigy
341 device snd_es137x # Ensoniq AudioPCI ES137x
342 device snd_hda # Intel High Definition Audio
343 device snd_ich # Intel, NVidia and other ICH AC'97 Audio
344 device snd_via8233 # VIA VT8233x Audio
347 device mmc # MMC/SD bus
348 device mmcsd # MMC/SD memory card
349 device sdhci # Generic PCI SD Host Controller
352 device virtio # Generic VirtIO bus (required)
353 device virtio_pci # VirtIO PCI device
354 device vtnet # VirtIO Ethernet device
355 device virtio_blk # VirtIO Block device
356 device virtio_scsi # VirtIO SCSI device
357 device virtio_balloon # VirtIO Memory Balloon device
359 # HyperV drivers and enhancement support
360 device hyperv # HyperV drivers
362 # Xen HVM Guest Optimizations
363 # NOTE: XENHVM depends on xenpci. They must be added or removed together.
364 options XENHVM # Xen HVM kernel infrastructure
365 device xenpci # Xen HVM Hypervisor services driver
368 device vmx # VMware VMXNET3 Ethernet
370 # Netmap provides direct access to TX/RX rings on supported NICs
371 device netmap # netmap(4) support
373 # The crypto framework is required by IPSEC
374 device crypto # Required by IPSEC