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