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