2 # GENERIC -- Generic kernel configuration file for FreeBSD/i386
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
26 makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols
27 makeoptions WITH_CTF=1 # Run ctfconvert(1) for DTrace support
29 options SCHED_ULE # ULE scheduler
30 options PREEMPTION # Enable kernel thread preemption
31 options VIMAGE # Subsystem virtualization, e.g. VNET
32 options INET # InterNETworking
33 options INET6 # IPv6 communications protocols
34 options IPSEC # IP (v4/v6) security
35 options IPSEC_SUPPORT # Allow kldload of ipsec and tcpmd5
36 options TCP_HHOOK # hhook(9) framework for TCP
37 options TCP_OFFLOAD # TCP offload
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_FREEBSD4 # Compatible with FreeBSD4
58 options COMPAT_FREEBSD5 # Compatible with FreeBSD5
59 options COMPAT_FREEBSD6 # Compatible with FreeBSD6
60 options COMPAT_FREEBSD7 # Compatible with FreeBSD7
61 options COMPAT_FREEBSD9 # Compatible with FreeBSD9
62 options COMPAT_FREEBSD10 # Compatible with FreeBSD10
63 options COMPAT_FREEBSD11 # Compatible with FreeBSD11
64 options SCSI_DELAY=5000 # Delay (in ms) before probing SCSI
65 options KTRACE # ktrace(1) support
66 options STACK # stack(9) support
67 options SYSVSHM # SYSV-style shared memory
68 options SYSVMSG # SYSV-style message queues
69 options SYSVSEM # SYSV-style semaphores
70 options _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time extensions
71 options PRINTF_BUFR_SIZE=128 # Prevent printf output being interspersed.
72 options KBD_INSTALL_CDEV # install a CDEV entry in /dev
73 options HWPMC_HOOKS # Necessary kernel hooks for hwpmc(4)
74 options AUDIT # Security event auditing
75 options CAPABILITY_MODE # Capsicum capability mode
76 options CAPABILITIES # Capsicum capabilities
77 options MAC # TrustedBSD MAC Framework
78 options KDTRACE_HOOKS # Kernel DTrace hooks
79 options DDB_CTF # Kernel ELF linker loads CTF data
80 options INCLUDE_CONFIG_FILE # Include this file in kernel
81 options RACCT # Resource accounting framework
82 options RACCT_DEFAULT_TO_DISABLED # Set kern.racct.enable=0 by default
83 options RCTL # Resource limits
85 # Debugging support. Always need this:
86 options KDB # Enable kernel debugger support.
87 options KDB_TRACE # Print a stack trace for a panic.
88 # For full debugger support use (turn off in stable branch):
89 options DDB # Support DDB.
90 options GDB # Support remote GDB.
91 options DEADLKRES # Enable the deadlock resolver
92 options INVARIANTS # Enable calls of extra sanity checking
93 options INVARIANT_SUPPORT # Extra sanity checks of internal structures, required by INVARIANTS
94 options WITNESS # Enable checks to detect deadlocks and cycles
95 options WITNESS_SKIPSPIN # Don't run witness on spinlocks for speed
96 options MALLOC_DEBUG_MAXZONES=8 # Separate malloc(9) zones
98 # To make an SMP kernel, the next two lines are needed
99 options SMP # Symmetric MultiProcessor Kernel
100 device apic # I/O APIC
101 options EARLY_AP_STARTUP
103 # CPU frequency control
109 options PCI_HP # PCI-Express native HotPlug
110 options PCI_IOV # PCI SR-IOV support
116 device ahci # AHCI-compatible SATA controllers
117 device ata # Legacy ATA/SATA controllers
118 device mvs # Marvell 88SX50XX/88SX60XX/88SX70XX/SoC SATA
119 device siis # SiliconImage SiI3124/SiI3132/SiI3531 SATA
122 device ahc # AHA2940 and onboard AIC7xxx devices
123 options AHC_REG_PRETTY_PRINT # Print register bitfields in debug
124 # output. Adds ~128k to driver.
125 device ahd # AHA39320/29320 and onboard AIC79xx devices
126 options AHD_REG_PRETTY_PRINT # Print register bitfields in debug
127 # output. Adds ~215k to driver.
128 device esp # AMD Am53C974 (Tekram DC-390(T))
129 device hptiop # Highpoint RocketRaid 3xxx series
130 device isp # Qlogic family
131 #device ispfw # Firmware for QLogic HBAs- normally a module
132 device mpt # LSI-Logic MPT-Fusion
133 device mps # LSI-Logic MPT-Fusion 2
134 device mpr # LSI-Logic MPT-Fusion 3
135 #device ncr # NCR/Symbios Logic
136 device sym # NCR/Symbios Logic (newer chipsets + those of `ncr')
137 device trm # Tekram DC395U/UW/F DC315U adapters
139 device adv # Advansys SCSI adapters
140 device adw # Advansys wide SCSI adapters
141 device aha # Adaptec 154x SCSI adapters
142 device aic # Adaptec 15[012]x SCSI adapters, AIC-6[23]60.
143 device bt # Buslogic/Mylex MultiMaster SCSI adapters
145 device ncv # NCR 53C500
146 device nsp # Workbit Ninja SCSI-3
147 device stg # TMC 18C30/18C50
148 device isci # Intel C600 SAS controller
150 # ATA/SCSI peripherals
151 device scbus # SCSI bus (required for ATA/SCSI)
152 device ch # SCSI media changers
153 device da # Direct Access (disks)
154 device sa # Sequential Access (tape etc)
156 device pass # Passthrough device (direct ATA/SCSI access)
157 device ses # Enclosure Services (SES and SAF-TE)
158 #device ctl # CAM Target Layer
160 # RAID controllers interfaced to the SCSI subsystem
161 device amr # AMI MegaRAID
162 device arcmsr # Areca SATA II RAID
163 device ciss # Compaq Smart RAID 5*
164 device dpt # DPT Smartcache III, IV - See NOTES for options
165 device hptmv # Highpoint RocketRAID 182x
166 device hptnr # Highpoint DC7280, R750
167 device hptrr # Highpoint RocketRAID 17xx, 22xx, 23xx, 25xx
168 device hpt27xx # Highpoint RocketRAID 27xx
169 device iir # Intel Integrated RAID
170 device ips # IBM (Adaptec) ServeRAID
171 device mly # Mylex AcceleRAID/eXtremeRAID
172 device twa # 3ware 9000 series PATA/SATA RAID
173 device tws # LSI 3ware 9750 SATA+SAS 6Gb/s RAID controller
176 device aac # Adaptec FSA RAID
177 device aacp # SCSI passthrough for aac (requires CAM)
178 device aacraid # Adaptec by PMC RAID
179 device ida # Compaq Smart RAID
180 device mfi # LSI MegaRAID SAS
181 device mlx # Mylex DAC960 family
182 device mrsas # LSI/Avago MegaRAID SAS/SATA, 6Gb/s and 12Gb/s
183 device pmspcv # PMC-Sierra SAS/SATA Controller driver
184 device pst # Promise Supertrak SX6000
185 device twe # 3ware ATA RAID
187 # NVM Express (NVMe) support
188 device nvme # base NVMe driver
189 device nvd # expose NVMe namespace as disks, depends on nvme
191 # atkbdc0 controls both the keyboard and the PS/2 mouse
192 device atkbdc # AT keyboard controller
193 device atkbd # AT keyboard
194 device psm # PS/2 mouse
196 device kbdmux # keyboard multiplexer
198 device vga # VGA video card driver
199 options VESA # Add support for VESA BIOS Extensions (VBE)
201 device splash # Splash screen and screen saver support
203 # syscons is the default console driver, resembling an SCO console
205 options SC_PIXEL_MODE # add support for the raster text mode
207 # vt is the new video console driver
211 device agp # support several AGP chipsets
213 # Power management support (see NOTES for more options)
215 # Add suspend/resume support for the i8254.
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 ixgb # Intel PRO/10GbE Ethernet Card
241 device le # AMD Am7900 LANCE and Am79C9xx PCnet
242 device ti # Alteon Networks Tigon I/II gigabit Ethernet
243 device txp # 3Com 3cR990 (``Typhoon'')
244 device vx # 3Com 3c590, 3c595 (``Vortex'')
246 # PCI Ethernet NICs that use the common MII bus controller code.
247 # NOTE: Be sure to keep the 'device miibus' line in order to use these NICs!
248 device miibus # MII bus support
249 device ae # Attansic/Atheros L2 FastEthernet
250 device age # Attansic/Atheros L1 Gigabit Ethernet
251 device alc # Atheros AR8131/AR8132 Ethernet
252 device ale # Atheros AR8121/AR8113/AR8114 Ethernet
253 device bce # Broadcom BCM5706/BCM5708 Gigabit Ethernet
254 device bfe # Broadcom BCM440x 10/100 Ethernet
255 device bge # Broadcom BCM570xx Gigabit Ethernet
256 device cas # Sun Cassini/Cassini+ and NS DP83065 Saturn
257 device dc # DEC/Intel 21143 and various workalikes
258 device et # Agere ET1310 10/100/Gigabit Ethernet
259 device fxp # Intel EtherExpress PRO/100B (82557, 82558)
260 device gem # Sun GEM/Sun ERI/Apple GMAC
261 device hme # Sun HME (Happy Meal Ethernet)
262 device jme # JMicron JMC250 Gigabit/JMC260 Fast Ethernet
263 device lge # Level 1 LXT1001 gigabit Ethernet
264 device msk # Marvell/SysKonnect Yukon II Gigabit Ethernet
265 device nfe # nVidia nForce MCP on-board Ethernet
266 device nge # NatSemi DP83820 gigabit Ethernet
267 device pcn # AMD Am79C97x PCI 10/100 (precedence over 'le')
268 device re # RealTek 8139C+/8169/8169S/8110S
269 device rl # RealTek 8129/8139
270 device sf # Adaptec AIC-6915 (``Starfire'')
271 device sge # Silicon Integrated Systems SiS190/191
272 device sis # Silicon Integrated Systems SiS 900/SiS 7016
273 device sk # SysKonnect SK-984x & SK-982x gigabit Ethernet
274 device ste # Sundance ST201 (D-Link DFE-550TX)
275 device stge # Sundance/Tamarack TC9021 gigabit Ethernet
276 device tl # Texas Instruments ThunderLAN
277 device tx # SMC EtherPower II (83c170 ``EPIC'')
278 device vge # VIA VT612x gigabit Ethernet
279 device vr # VIA Rhine, Rhine II
280 device vte # DM&P Vortex86 RDC R6040 Fast Ethernet
281 device wb # Winbond W89C840F
282 device xl # 3Com 3c90x (``Boomerang'', ``Cyclone'')
284 # ISA Ethernet NICs. pccard NICs included.
285 device cs # Crystal Semiconductor CS89x0 NIC
286 # 'device ed' requires 'device miibus'
287 device ed # NE[12]000, SMC Ultra, 3c503, DS8390 cards
288 device ex # Intel EtherExpress Pro/10 and Pro/10+
289 device ep # Etherlink III based cards
290 device fe # Fujitsu MB8696x based cards
291 device ie # EtherExpress 8/16, 3C507, StarLAN 10 etc.
292 device sn # SMC's 9000 series of Ethernet chips
293 device xe # Xircom pccard Ethernet
296 device wlan # 802.11 support
297 options IEEE80211_DEBUG # enable debug msgs
298 options IEEE80211_AMPDU_AGE # age frames in AMPDU reorder q's
299 options IEEE80211_SUPPORT_MESH # enable 802.11s draft support
300 device wlan_wep # 802.11 WEP support
301 device wlan_ccmp # 802.11 CCMP support
302 device wlan_tkip # 802.11 TKIP support
303 device wlan_amrr # AMRR transmit rate control algorithm
304 device an # Aironet 4500/4800 802.11 wireless NICs.
305 device ath # Atheros NICs
306 device ath_pci # Atheros pci/cardbus glue
307 device ath_hal # pci/cardbus chip support
308 options AH_SUPPORT_AR5416 # enable AR5416 tx/rx descriptors
309 options AH_AR5416_INTERRUPT_MITIGATION # AR5416 interrupt mitigation
310 options ATH_ENABLE_11N # Enable 802.11n support for AR5416 and later
311 device ath_rate_sample # SampleRate tx rate control for ath
312 #device bwi # Broadcom BCM430x/BCM431x wireless NICs.
313 #device bwn # Broadcom BCM43xx wireless NICs.
314 device ipw # Intel 2100 wireless NICs.
315 device iwi # Intel 2200BG/2225BG/2915ABG wireless NICs.
316 device iwn # Intel 4965/1000/5000/6000 wireless NICs.
317 device malo # Marvell Libertas wireless NICs.
318 device mwl # Marvell 88W8363 802.11n wireless NICs.
319 device ral # Ralink Technology RT2500 wireless NICs.
320 device wi # WaveLAN/Intersil/Symbol 802.11 wireless NICs.
321 #device wl # Older non 802.11 Wavelan wireless NIC.
322 device wpi # Intel 3945ABG wireless NICs.
325 device loop # Network loopback
326 device random # Entropy device
327 device padlock_rng # VIA Padlock RNG
328 device rdrand_rng # Intel Bull Mountain RNG
329 device ether # Ethernet support
330 device vlan # 802.1Q VLAN support
331 device tun # Packet tunnel.
332 device md # Memory "disks"
333 device gif # IPv6 and IPv4 tunneling
334 device firmware # firmware assist module
336 # The `bpf' device enables the Berkeley Packet Filter.
337 # Be aware of the administrative consequences of enabling this!
338 # Note that 'bpf' is required for DHCP.
339 device bpf # Berkeley packet filter
342 options USB_DEBUG # enable debug msgs
343 device uhci # UHCI PCI->USB interface
344 device ohci # OHCI PCI->USB interface
345 device ehci # EHCI PCI->USB interface (USB 2.0)
346 device xhci # XHCI PCI->USB interface (USB 3.0)
347 device usb # USB Bus (required)
348 device ukbd # Keyboard
349 device umass # Disks/Mass storage - Requires scbus and da
352 device sound # Generic sound driver (required)
353 device snd_cmi # CMedia CMI8338/CMI8738
354 device snd_csa # Crystal Semiconductor CS461x/428x
355 device snd_emu10kx # Creative SoundBlaster Live! and Audigy
356 device snd_es137x # Ensoniq AudioPCI ES137x
357 device snd_hda # Intel High Definition Audio
358 device snd_ich # Intel, NVidia and other ICH AC'97 Audio
359 device snd_via8233 # VIA VT8233x Audio
362 device mmc # MMC/SD bus
363 device mmcsd # MMC/SD memory card
364 device sdhci # Generic PCI SD Host Controller
367 device virtio # Generic VirtIO bus (required)
368 device virtio_pci # VirtIO PCI device
369 device vtnet # VirtIO Ethernet device
370 device virtio_blk # VirtIO Block device
371 device virtio_scsi # VirtIO SCSI device
372 device virtio_balloon # VirtIO Memory Balloon device
374 # HyperV drivers and enchancement support
375 device hyperv # HyperV drivers
377 # Xen HVM Guest Optimizations
378 # NOTE: XENHVM depends on xenpci. They must be added or removed together.
379 options XENHVM # Xen HVM kernel infrastructure
380 device xenpci # Xen HVM Hypervisor services driver
383 device vmx # VMware VMXNET3 Ethernet
385 # The crypto framework is required by IPSEC
386 device crypto # Required by IPSEC