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 # 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
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 NUMA # Non-Uniform Memory Architecture support
29 options PREEMPTION # Enable kernel thread preemption
30 options VIMAGE # Subsystem virtualization, e.g. VNET
31 options INET # InterNETworking
32 options INET6 # IPv6 communications protocols
33 options IPSEC # IP (v4/v6) security
34 options IPSEC_SUPPORT # Allow kldload of ipsec and tcpmd5
35 options TCP_OFFLOAD # TCP offload
36 options TCP_BLACKBOX # Enhanced TCP event logging
37 options TCP_HHOOK # hhook(9) framework for TCP
38 options TCP_RFC7413 # TCP Fast Open
39 options SCTP # Stream Control Transmission Protocol
40 options FFS # Berkeley Fast Filesystem
41 options SOFTUPDATES # Enable FFS soft updates support
42 options UFS_ACL # Support for access control lists
43 options UFS_DIRHASH # Improve performance on big directories
44 options UFS_GJOURNAL # Enable gjournal-based UFS journaling
45 options QUOTA # Enable disk quotas for UFS
46 options MD_ROOT # MD is a potential root device
47 options NFSCL # Network Filesystem Client
48 options NFSD # Network Filesystem Server
49 options NFSLOCKD # Network Lock Manager
50 options NFS_ROOT # NFS usable as /, requires NFSCL
51 options MSDOSFS # MSDOS Filesystem
52 options CD9660 # ISO 9660 Filesystem
53 options PROCFS # Process filesystem (requires PSEUDOFS)
54 options PSEUDOFS # Pseudo-filesystem framework
55 options GEOM_RAID # Soft RAID functionality.
56 options GEOM_LABEL # Provides labelization
57 options EFIRT # EFI Runtime Services support
58 options COMPAT_FREEBSD32 # Compatible with i386 binaries
59 options COMPAT_FREEBSD4 # Compatible with FreeBSD4
60 options COMPAT_FREEBSD5 # Compatible with FreeBSD5
61 options COMPAT_FREEBSD6 # Compatible with FreeBSD6
62 options COMPAT_FREEBSD7 # Compatible with FreeBSD7
63 options COMPAT_FREEBSD9 # Compatible with FreeBSD9
64 options COMPAT_FREEBSD10 # Compatible with FreeBSD10
65 options COMPAT_FREEBSD11 # Compatible with FreeBSD11
66 options SCSI_DELAY=5000 # Delay (in ms) before probing SCSI
67 options KTRACE # ktrace(1) support
68 options STACK # stack(9) support
69 options SYSVSHM # SYSV-style shared memory
70 options SYSVMSG # SYSV-style message queues
71 options SYSVSEM # SYSV-style semaphores
72 options _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time extensions
73 options PRINTF_BUFR_SIZE=128 # Prevent printf output being interspersed.
74 options KBD_INSTALL_CDEV # install a CDEV entry in /dev
75 options HWPMC_HOOKS # Necessary kernel hooks for hwpmc(4)
76 options AUDIT # Security event auditing
77 options CAPABILITY_MODE # Capsicum capability mode
78 options CAPABILITIES # Capsicum capabilities
79 options MAC # TrustedBSD MAC Framework
80 options KDTRACE_FRAME # Ensure frames are compiled in
81 options KDTRACE_HOOKS # Kernel DTrace hooks
82 options DDB_CTF # Kernel ELF linker loads CTF data
83 options INCLUDE_CONFIG_FILE # Include this file in kernel
84 options RACCT # Resource accounting framework
85 options RACCT_DEFAULT_TO_DISABLED # Set kern.racct.enable=0 by default
86 options RCTL # Resource limits
88 # Debugging support. Always need this:
89 options KDB # Enable kernel debugger support.
90 options KDB_TRACE # Print a stack trace for a panic.
92 # Kernel dump features.
93 options EKCD # Support for encrypted kernel dumps
94 options GZIO # gzip-compressed kernel and user dumps
95 options ZSTDIO # zstd-compressed kernel and user dumps
96 options NETDUMP # netdump(4) client support
98 # Make an SMP-capable kernel by default
99 options SMP # Symmetric MultiProcessor Kernel
100 options EARLY_AP_STARTUP
102 # CPU frequency control
109 options PCI_HP # PCI-Express native HotPlug
110 options PCI_IOV # PCI SR-IOV support
112 options COMPAT_LINUXKPI
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 device ahd # AHA39320/29320 and onboard AIC79xx devices
126 device esp # AMD Am53C974 (Tekram DC-390(T))
127 device hptiop # Highpoint RocketRaid 3xxx series
128 device isp # Qlogic family
129 #device ispfw # Firmware for QLogic HBAs- normally a module
130 device mpt # LSI-Logic MPT-Fusion
131 device mps # LSI-Logic MPT-Fusion 2
132 device mpr # LSI-Logic MPT-Fusion 3
133 #device ncr # NCR/Symbios Logic
134 device sym # NCR/Symbios Logic (newer chipsets + those of `ncr')
135 device trm # Tekram DC395U/UW/F DC315U adapters
136 device isci # Intel C600 SAS controller
137 device ocs_fc # Emulex FC adapters
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 smartpqi # Microsemi smartpqi driver
163 device tws # LSI 3ware 9750 SATA+SAS 6Gb/s RAID controller
166 device aac # Adaptec FSA RAID
167 device aacp # SCSI passthrough for aac (requires CAM)
168 device aacraid # Adaptec by PMC RAID
169 device ida # Compaq Smart RAID
170 device mfi # LSI MegaRAID SAS
171 device mlx # Mylex DAC960 family
172 device mrsas # LSI/Avago MegaRAID SAS/SATA, 6Gb/s and 12Gb/s
173 device pmspcv # PMC-Sierra SAS/SATA Controller driver
174 #XXX pointer/int warnings
175 #device pst # Promise Supertrak SX6000
176 device twe # 3ware ATA RAID
178 # NVM Express (NVMe) support
179 device nvme # base NVMe driver
180 device nvd # expose NVMe namespaces as disks, depends on nvme
182 # atkbdc0 controls both the keyboard and the PS/2 mouse
183 device atkbdc # AT keyboard controller
184 device atkbd # AT keyboard
185 device psm # PS/2 mouse
187 device kbdmux # keyboard multiplexer
189 device vga # VGA video card driver
190 options VESA # Add support for VESA BIOS Extensions (VBE)
192 device splash # Splash screen and screen saver support
194 # syscons is the default console driver, resembling an SCO console
196 options SC_PIXEL_MODE # add support for the raster text mode
198 # vt is the new video console driver
203 device agp # support several AGP chipsets
205 # PCCARD (PCMCIA) support
206 # PCMCIA and cardbus bridge support
207 device cbb # cardbus (yenta) bridge
208 device pccard # PC Card (16-bit) bus
209 device cardbus # CardBus (32-bit) bus
212 device uart # Generic UART driver
216 device ppbus # Parallel port bus (required)
218 device ppi # Parallel port interface device
219 #device vpo # Requires scbus and da
221 device puc # Multi I/O cards and multi-channel UARTs
223 # PCI/PCI-X/PCIe Ethernet NICs that use iflib infrastructure
225 device em # Intel PRO/1000 Gigabit Ethernet Family
226 device ix # Intel PRO/10GbE PCIE PF Ethernet
227 device ixv # Intel PRO/10GbE PCIE VF Ethernet
228 device ixl # Intel 700 Series Physical Function
229 device iavf # Intel Adaptive Virtual Function
230 device ice # Intel 800 Series Physical Function
231 device vmx # VMware VMXNET3 Ethernet
234 device bxe # Broadcom NetXtreme II BCM5771X/BCM578XX 10GbE
235 device de # DEC/Intel DC21x4x (``Tulip'')
236 device le # AMD Am7900 LANCE and Am79C9xx PCnet
237 device ti # Alteon Networks Tigon I/II gigabit Ethernet
238 device txp # 3Com 3cR990 (``Typhoon'')
239 device vx # 3Com 3c590, 3c595 (``Vortex'')
241 # Nvidia/Mellanox Connect-X 4 and later, Ethernet only
242 # mlx5ib requires ibcore infra and is not included by default
243 device mlx5 # Base driver
244 device mlxfw # Firmware update
245 device mlx5en # Ethernet driver
247 # PCI Ethernet NICs that use the common MII bus controller code.
248 # NOTE: Be sure to keep the 'device miibus' line in order to use these NICs!
249 device miibus # MII bus support
250 device ae # Attansic/Atheros L2 FastEthernet
251 device age # Attansic/Atheros L1 Gigabit Ethernet
252 device alc # Atheros AR8131/AR8132 Ethernet
253 device ale # Atheros AR8121/AR8113/AR8114 Ethernet
254 device bce # Broadcom BCM5706/BCM5708 Gigabit Ethernet
255 device bfe # Broadcom BCM440x 10/100 Ethernet
256 device bge # Broadcom BCM570xx Gigabit Ethernet
257 device cas # Sun Cassini/Cassini+ and NS DP83065 Saturn
258 device dc # DEC/Intel 21143 and various workalikes
259 device et # Agere ET1310 10/100/Gigabit Ethernet
260 device fxp # Intel EtherExpress PRO/100B (82557, 82558)
261 device gem # Sun GEM/Sun ERI/Apple GMAC
262 device hme # Sun HME (Happy Meal Ethernet)
263 device jme # JMicron JMC250 Gigabit/JMC260 Fast Ethernet
264 device lge # Level 1 LXT1001 gigabit Ethernet
265 device msk # Marvell/SysKonnect Yukon II Gigabit Ethernet
266 device nfe # nVidia nForce MCP on-board Ethernet
267 device nge # NatSemi DP83820 gigabit Ethernet
268 device pcn # AMD Am79C97x PCI 10/100 (precedence over 'le')
269 device re # RealTek 8139C+/8169/8169S/8110S
270 device rl # RealTek 8129/8139
271 device sf # Adaptec AIC-6915 (``Starfire'')
272 device sge # Silicon Integrated Systems SiS190/191
273 device sis # Silicon Integrated Systems SiS 900/SiS 7016
274 device sk # SysKonnect SK-984x & SK-982x gigabit Ethernet
275 device ste # Sundance ST201 (D-Link DFE-550TX)
276 device stge # Sundance/Tamarack TC9021 gigabit Ethernet
277 device tl # Texas Instruments ThunderLAN
278 device tx # SMC EtherPower II (83c170 ``EPIC'')
279 device vge # VIA VT612x gigabit Ethernet
280 device vr # VIA Rhine, Rhine II
281 device wb # Winbond W89C840F
282 device xl # 3Com 3c90x (``Boomerang'', ``Cyclone'')
285 device wlan # 802.11 support
286 options IEEE80211_DEBUG # enable debug msgs
287 options IEEE80211_AMPDU_AGE # age frames in AMPDU reorder q's
288 options IEEE80211_SUPPORT_MESH # enable 802.11s draft support
289 device wlan_wep # 802.11 WEP support
290 device wlan_ccmp # 802.11 CCMP support
291 device wlan_tkip # 802.11 TKIP support
292 device wlan_amrr # AMRR transmit rate control algorithm
293 device an # Aironet 4500/4800 802.11 wireless NICs.
294 device ath # Atheros NICs
295 device ath_pci # Atheros pci/cardbus glue
296 device ath_hal # pci/cardbus chip support
297 options AH_SUPPORT_AR5416 # enable AR5416 tx/rx descriptors
298 options AH_AR5416_INTERRUPT_MITIGATION # AR5416 interrupt mitigation
299 options ATH_ENABLE_11N # Enable 802.11n support for AR5416 and later
300 device ath_rate_sample # SampleRate tx rate control for ath
301 #device bwi # Broadcom BCM430x/BCM431x wireless NICs.
302 #device bwn # Broadcom BCM43xx wireless NICs.
303 device ipw # Intel 2100 wireless NICs.
304 device iwi # Intel 2200BG/2225BG/2915ABG wireless NICs.
305 device iwn # Intel 4965/1000/5000/6000 wireless NICs.
306 device malo # Marvell Libertas wireless NICs.
307 device mwl # Marvell 88W8363 802.11n wireless NICs.
308 device ral # Ralink Technology RT2500 wireless NICs.
309 device wi # WaveLAN/Intersil/Symbol 802.11 wireless NICs.
310 device wpi # Intel 3945ABG wireless NICs.
313 device crypto # core crypto support
314 device loop # Network loopback
315 device random # Entropy device
316 device padlock_rng # VIA Padlock RNG
317 device rdrand_rng # Intel Bull Mountain RNG
318 device ether # Ethernet support
319 device vlan # 802.1Q VLAN support
320 device tuntap # Packet tunnel.
321 device md # Memory "disks"
322 device gif # IPv6 and IPv4 tunneling
323 device firmware # firmware assist module
324 device xz # lzma decompression
326 # The `bpf' device enables the Berkeley Packet Filter.
327 # Be aware of the administrative consequences of enabling this!
328 # Note that 'bpf' is required for DHCP.
329 device bpf # Berkeley packet filter
332 options USB_DEBUG # enable debug msgs
333 device uhci # UHCI PCI->USB interface
334 device ohci # OHCI PCI->USB interface
335 device ehci # EHCI PCI->USB interface (USB 2.0)
336 device xhci # XHCI PCI->USB interface (USB 3.0)
337 device usb # USB Bus (required)
338 device ukbd # Keyboard
339 device umass # Disks/Mass storage - Requires scbus and da
342 device sound # Generic sound driver (required)
343 device snd_cmi # CMedia CMI8338/CMI8738
344 device snd_csa # Crystal Semiconductor CS461x/428x
345 device snd_emu10kx # Creative SoundBlaster Live! and Audigy
346 device snd_es137x # Ensoniq AudioPCI ES137x
347 device snd_hda # Intel High Definition Audio
348 device snd_ich # Intel, NVidia and other ICH AC'97 Audio
349 device snd_via8233 # VIA VT8233x Audio
352 device mmc # MMC/SD bus
353 device mmcsd # MMC/SD memory card
354 device sdhci # Generic PCI SD Host Controller
357 device virtio # Generic VirtIO bus (required)
358 device virtio_pci # VirtIO PCI device
359 device vtnet # VirtIO Ethernet device
360 device virtio_blk # VirtIO Block device
361 device virtio_scsi # VirtIO SCSI device
362 device virtio_balloon # VirtIO Memory Balloon device
364 # HyperV drivers and enhancement support
365 device hyperv # HyperV drivers
367 # Xen HVM Guest Optimizations
368 # NOTE: XENHVM depends on xenpci. They must be added or removed together.
369 options XENHVM # Xen HVM kernel infrastructure
370 device xenpci # Xen HVM Hypervisor services driver
372 # Netmap provides direct access to TX/RX rings on supported NICs
373 device netmap # netmap(4) support
376 options EVDEV_SUPPORT # evdev support in legacy drivers
377 device evdev # input event device support
378 device uinput # install /dev/uinput cdev