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_SUPPORT # Allow kldload of ipsec and tcpmd5
34 options ROUTE_MPATH # Multipath routing support
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_SUPPORT # Allow kldload of SCTP
40 options KERN_TLS # TLS transmit & receive offload
41 options FFS # Berkeley Fast Filesystem
42 options SOFTUPDATES # Enable FFS soft updates support
43 options UFS_ACL # Support for access control lists
44 options UFS_DIRHASH # Improve performance on big directories
45 options UFS_GJOURNAL # Enable gjournal-based UFS journaling
46 options QUOTA # Enable disk quotas for UFS
47 options MD_ROOT # MD is a potential root device
48 options NFSCL # Network Filesystem Client
49 options NFSD # Network Filesystem Server
50 options NFSLOCKD # Network Lock Manager
51 options NFS_ROOT # NFS usable as /, requires NFSCL
52 options MSDOSFS # MSDOS Filesystem
53 options CD9660 # ISO 9660 Filesystem
54 options PROCFS # Process filesystem (requires PSEUDOFS)
55 options PSEUDOFS # Pseudo-filesystem framework
56 options TMPFS # Efficient memory filesystem
57 options GEOM_RAID # Soft RAID functionality.
58 options GEOM_LABEL # Provides labelization
59 options EFIRT # EFI Runtime Services support
60 options COMPAT_FREEBSD32 # Compatible with i386 binaries
61 options COMPAT_FREEBSD4 # Compatible with FreeBSD4
62 options COMPAT_FREEBSD5 # Compatible with FreeBSD5
63 options COMPAT_FREEBSD6 # Compatible with FreeBSD6
64 options COMPAT_FREEBSD7 # Compatible with FreeBSD7
65 options COMPAT_FREEBSD9 # Compatible with FreeBSD9
66 options COMPAT_FREEBSD10 # Compatible with FreeBSD10
67 options COMPAT_FREEBSD11 # Compatible with FreeBSD11
68 options COMPAT_FREEBSD12 # Compatible with FreeBSD12
69 options SCSI_DELAY=5000 # Delay (in ms) before probing SCSI
70 options KTRACE # ktrace(1) support
71 options STACK # stack(9) support
72 options SYSVSHM # SYSV-style shared memory
73 options SYSVMSG # SYSV-style message queues
74 options SYSVSEM # SYSV-style semaphores
75 options _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time extensions
76 options PRINTF_BUFR_SIZE=128 # Prevent printf output being interspersed.
77 options KBD_INSTALL_CDEV # install a CDEV entry in /dev
78 options HWPMC_HOOKS # Necessary kernel hooks for hwpmc(4)
79 options AUDIT # Security event auditing
80 options CAPABILITY_MODE # Capsicum capability mode
81 options CAPABILITIES # Capsicum capabilities
82 options MAC # TrustedBSD MAC Framework
83 options KDTRACE_FRAME # Ensure frames are compiled in
84 options KDTRACE_HOOKS # Kernel DTrace hooks
85 options DDB_CTF # Kernel ELF linker loads CTF data
86 options INCLUDE_CONFIG_FILE # Include this file in kernel
87 options RACCT # Resource accounting framework
88 options RACCT_DEFAULT_TO_DISABLED # Set kern.racct.enable=0 by default
89 options RCTL # Resource limits
91 # Debugging support. Always need this:
92 options KDB # Enable kernel debugger support.
93 options KDB_TRACE # Print a stack trace for a panic.
96 #options COVERAGE # Generic kernel coverage. Used by KCOV
97 #options KCOV # Kernel Coverage Sanitizer
98 # Warning: KUBSAN can result in a kernel too large for loader to load
99 #options KUBSAN # Kernel Undefined Behavior Sanitizer
100 #options KCSAN # Kernel Concurrency Sanitizer
102 # Kernel dump features.
103 options EKCD # Support for encrypted kernel dumps
104 options GZIO # gzip-compressed kernel and user dumps
105 options ZSTDIO # zstd-compressed kernel and user dumps
106 options DEBUGNET # debugnet networking
107 options NETDUMP # netdump(4) client support
108 options NETGDB # netgdb(4) client support
110 # Make an SMP-capable kernel by default
111 options SMP # Symmetric MultiProcessor Kernel
112 options EARLY_AP_STARTUP
114 # CPU frequency control
122 options PCI_HP # PCI-Express native HotPlug
123 options PCI_IOV # PCI SR-IOV support
125 options COMPAT_LINUXKPI
127 # Enable support for the kernel PLL to use an external PPS signal,
128 # under supervision of [x]ntpd(8)
129 # More info in ntpd documentation: http://www.eecis.udel.edu/~ntp
137 device ahci # AHCI-compatible SATA controllers
138 device ata # Legacy ATA/SATA controllers
139 device mvs # Marvell 88SX50XX/88SX60XX/88SX70XX/SoC SATA
140 device siis # SiliconImage SiI3124/SiI3132/SiI3531 SATA
143 device ahc # AHA2940 and onboard AIC7xxx devices
144 device ahd # AHA39320/29320 and onboard AIC79xx devices
145 device esp # AMD Am53C974 (Tekram DC-390(T))
146 device hptiop # Highpoint RocketRaid 3xxx series
147 device isp # Qlogic family
148 #device ispfw # Firmware for QLogic HBAs- normally a module
149 device mpt # LSI-Logic MPT-Fusion
150 device mps # LSI-Logic MPT-Fusion 2
151 device mpr # LSI-Logic MPT-Fusion 3
152 device sym # NCR/Symbios Logic
153 device isci # Intel C600 SAS controller
154 device ocs_fc # Emulex FC adapters
155 device pvscsi # VMware PVSCSI
157 # ATA/SCSI peripherals
158 device scbus # SCSI bus (required for ATA/SCSI)
159 device ch # SCSI media changers
160 device da # Direct Access (disks)
161 device sa # Sequential Access (tape etc)
163 device pass # Passthrough device (direct ATA/SCSI access)
164 device ses # Enclosure Services (SES and SAF-TE)
165 #device ctl # CAM Target Layer
167 # RAID controllers interfaced to the SCSI subsystem
168 device amr # AMI MegaRAID
169 device arcmsr # Areca SATA II RAID
170 device ciss # Compaq Smart RAID 5*
171 device iir # Intel Integrated RAID
172 device ips # IBM (Adaptec) ServeRAID
173 device mly # Mylex AcceleRAID/eXtremeRAID
174 device twa # 3ware 9000 series PATA/SATA RAID
175 device smartpqi # Microsemi smartpqi driver
176 device tws # LSI 3ware 9750 SATA+SAS 6Gb/s RAID controller
179 device aac # Adaptec FSA RAID
180 device aacp # SCSI passthrough for aac (requires CAM)
181 device aacraid # Adaptec by PMC RAID
182 device ida # Compaq Smart RAID
183 device mfi # LSI MegaRAID SAS
184 device mlx # Mylex DAC960 family
185 device mrsas # LSI/Avago MegaRAID SAS/SATA, 6Gb/s and 12Gb/s
186 device pmspcv # PMC-Sierra SAS/SATA Controller driver
187 #XXX pointer/int warnings
188 #device pst # Promise Supertrak SX6000
189 device twe # 3ware ATA RAID
191 # NVM Express (NVMe) support
192 device nvme # base NVMe driver
193 device nvd # expose NVMe namespaces as disks, depends on nvme
195 # Intel Volume Management Device (VMD) support
198 # atkbdc0 controls both the keyboard and the PS/2 mouse
199 device atkbdc # AT keyboard controller
200 device atkbd # AT keyboard
201 device psm # PS/2 mouse
203 device kbdmux # keyboard multiplexer
205 device vga # VGA video card driver
206 options VESA # Add support for VESA BIOS Extensions (VBE)
208 device splash # Splash screen and screen saver support
210 # syscons is the legacy console driver, resembling an SCO console
212 options SC_PIXEL_MODE # add support for the raster text mode
214 # vt is the default video console driver
220 device agp # support several AGP chipsets
222 # PCCARD (PCMCIA) support
223 # PCMCIA and cardbus bridge support
224 device cbb # cardbus (yenta) bridge
225 device pccard # PC Card (16-bit) bus
226 device cardbus # CardBus (32-bit) bus
229 device uart # Generic UART driver
233 device ppbus # Parallel port bus (required)
235 device ppi # Parallel port interface device
236 #device vpo # Requires scbus and da
238 device puc # Multi I/O cards and multi-channel UARTs
240 # PCI/PCI-X/PCIe Ethernet NICs that use iflib infrastructure
242 device em # Intel PRO/1000 Gigabit Ethernet Family
243 device igc # Intel I225 2.5G Ethernet
244 device ix # Intel PRO/10GbE PCIE PF Ethernet
245 device ixv # Intel PRO/10GbE PCIE VF Ethernet
246 device ixl # Intel 700 Series Physical Function
247 device iavf # Intel Adaptive Virtual Function
248 device ice # Intel 800 Series Physical Function
249 device vmx # VMware VMXNET3 Ethernet
250 device axp # AMD EPYC integrated NIC
253 device bxe # Broadcom NetXtreme II BCM5771X/BCM578XX 10GbE
254 device le # AMD Am7900 LANCE and Am79C9xx PCnet
255 device ti # Alteon Networks Tigon I/II gigabit Ethernet
257 # Nvidia/Mellanox Connect-X 4 and later, Ethernet only
258 # mlx5ib requires ibcore infra and is not included by default
259 device mlx5 # Base driver
260 device mlxfw # Firmware update
261 device mlx5en # Ethernet driver
263 # PCI Ethernet NICs that use the common MII bus controller code.
264 # NOTE: Be sure to keep the 'device miibus' line in order to use these NICs!
265 device miibus # MII bus support
266 device ae # Attansic/Atheros L2 FastEthernet
267 device age # Attansic/Atheros L1 Gigabit Ethernet
268 device alc # Atheros AR8131/AR8132 Ethernet
269 device ale # Atheros AR8121/AR8113/AR8114 Ethernet
270 device bce # Broadcom BCM5706/BCM5708 Gigabit Ethernet
271 device bfe # Broadcom BCM440x 10/100 Ethernet
272 device bge # Broadcom BCM570xx Gigabit Ethernet
273 device cas # Sun Cassini/Cassini+ and NS DP83065 Saturn
274 device dc # DEC/Intel 21143 and various workalikes
275 device et # Agere ET1310 10/100/Gigabit Ethernet
276 device fxp # Intel EtherExpress PRO/100B (82557, 82558)
277 device gem # Sun GEM/Sun ERI/Apple GMAC
278 device jme # JMicron JMC250 Gigabit/JMC260 Fast Ethernet
279 device lge # Level 1 LXT1001 gigabit Ethernet
280 device msk # Marvell/SysKonnect Yukon II Gigabit Ethernet
281 device nfe # nVidia nForce MCP on-board Ethernet
282 device nge # NatSemi DP83820 gigabit Ethernet
283 device re # RealTek 8139C+/8169/8169S/8110S
284 device rl # RealTek 8129/8139
285 device sge # Silicon Integrated Systems SiS190/191
286 device sis # Silicon Integrated Systems SiS 900/SiS 7016
287 device sk # SysKonnect SK-984x & SK-982x gigabit Ethernet
288 device ste # Sundance ST201 (D-Link DFE-550TX)
289 device stge # Sundance/Tamarack TC9021 gigabit Ethernet
290 device vge # VIA VT612x gigabit Ethernet
291 device vr # VIA Rhine, Rhine II
292 device xl # 3Com 3c90x (``Boomerang'', ``Cyclone'')
295 device wlan # 802.11 support
296 options IEEE80211_DEBUG # enable debug msgs
297 options IEEE80211_SUPPORT_MESH # enable 802.11s draft support
298 device wlan_wep # 802.11 WEP support
299 device wlan_ccmp # 802.11 CCMP support
300 device wlan_tkip # 802.11 TKIP support
301 device wlan_amrr # AMRR transmit rate control algorithm
302 device an # Aironet 4500/4800 802.11 wireless NICs.
303 device ath # Atheros NICs
304 device ath_pci # Atheros pci/cardbus glue
305 device ath_hal # pci/cardbus chip support
306 options AH_AR5416_INTERRUPT_MITIGATION # AR5416 interrupt mitigation
307 options ATH_ENABLE_11N # Enable 802.11n support for AR5416 and later
308 device ath_rate_sample # SampleRate tx rate control for ath
309 #device bwi # Broadcom BCM430x/BCM431x wireless NICs.
310 #device bwn # Broadcom BCM43xx wireless NICs.
311 device ipw # Intel 2100 wireless NICs.
312 device iwi # Intel 2200BG/2225BG/2915ABG wireless NICs.
313 device iwn # Intel 4965/1000/5000/6000 wireless NICs.
314 device malo # Marvell Libertas wireless NICs.
315 device mwl # Marvell 88W8363 802.11n wireless NICs.
316 device ral # Ralink Technology RT2500 wireless NICs.
317 device wpi # Intel 3945ABG wireless NICs.
320 device crypto # core crypto support
321 device aesni # AES-NI OpenCrypto module
322 device loop # Network loopback
323 device padlock_rng # VIA Padlock RNG
324 device rdrand_rng # Intel Bull Mountain RNG
325 device ether # Ethernet support
326 device vlan # 802.1Q VLAN support
327 device tuntap # Packet tunnel.
328 device md # Memory "disks"
329 device gif # IPv6 and IPv4 tunneling
330 device firmware # firmware assist module
331 device xz # lzma decompression
333 # The `bpf' device enables the Berkeley Packet Filter.
334 # Be aware of the administrative consequences of enabling this!
335 # Note that 'bpf' is required for DHCP.
336 device bpf # Berkeley packet filter
339 options USB_DEBUG # enable debug msgs
340 device uhci # UHCI PCI->USB interface
341 device ohci # OHCI PCI->USB interface
342 device ehci # EHCI PCI->USB interface (USB 2.0)
343 device xhci # XHCI PCI->USB interface (USB 3.0)
344 device usb # USB Bus (required)
345 device ukbd # Keyboard
346 device umass # Disks/Mass storage - Requires scbus and da
349 device sound # Generic sound driver (required)
350 device snd_cmi # CMedia CMI8338/CMI8738
351 device snd_csa # Crystal Semiconductor CS461x/428x
352 device snd_emu10kx # Creative SoundBlaster Live! and Audigy
353 device snd_es137x # Ensoniq AudioPCI ES137x
354 device snd_hda # Intel High Definition Audio
355 device snd_ich # Intel, NVidia and other ICH AC'97 Audio
356 device snd_via8233 # VIA VT8233x Audio
359 device mmc # MMC/SD bus
360 device mmcsd # MMC/SD memory card
361 device sdhci # Generic PCI SD Host Controller
362 device rtsx # Realtek SD card reader
365 device virtio # Generic VirtIO bus (required)
366 device virtio_pci # VirtIO PCI device
367 device vtnet # VirtIO Ethernet device
368 device virtio_blk # VirtIO Block device
369 device virtio_scsi # VirtIO SCSI device
370 device virtio_balloon # VirtIO Memory Balloon device
372 # Linux KVM paravirtualization support
373 device kvm_clock # KVM paravirtual clock driver
375 # HyperV drivers and enhancement support
376 device hyperv # HyperV drivers
378 # Xen HVM Guest Optimizations
379 # NOTE: XENHVM depends on xenpci. They must be added or removed together.
380 options XENHVM # Xen HVM kernel infrastructure
381 device xenpci # Xen HVM Hypervisor services driver
383 # Netmap provides direct access to TX/RX rings on supported NICs
384 device netmap # netmap(4) support
387 options EVDEV_SUPPORT # evdev support in legacy drivers
388 device evdev # input event device support
389 device uinput # install /dev/uinput cdev
392 options HID_DEBUG # enable debug msgs
393 device hid # Generic HID support
394 options IICHID_SAMPLING # Workaround missing GPIO INTR support