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