1# 2# NOTES -- Lines that can be cut/pasted into kernel and hints configs. 3# 4# This file contains machine dependent kernel configuration notes. For 5# machine independent notes, look in /sys/conf/NOTES. 6# 7# $FreeBSD$ 8# 9 10# 11# We want LINT to cover profiling as well. 12profile 2 13 14# 15# Enable the kernel DTrace hooks which are required to load the DTrace 16# kernel modules. 17# 18options KDTRACE_HOOKS 19 20# DTrace core 21# NOTE: introduces CDDL-licensed components into the kernel 22#device dtrace 23 24# DTrace modules 25#device dtrace_profile 26#device dtrace_sdt 27#device dtrace_fbt 28#device dtrace_systrace 29#device dtrace_prototype 30#device dtnfscl 31#device dtmalloc 32 33# Alternatively include all the DTrace modules 34#device dtraceall 35 36 37##################################################################### 38# SMP OPTIONS: 39# 40# Notes: 41# 42# IPI_PREEMPTION instructs the kernel to preempt threads running on other 43# CPUS if needed. Relies on the PREEMPTION option 44 45# Optional: 46options IPI_PREEMPTION 47device atpic # Optional legacy pic support 48device mptable # Optional MPSPEC mptable support 49 50# 51# Watchdog routines. 52# 53options MP_WATCHDOG 54 55# Debugging options. 56# 57options COUNT_XINVLTLB_HITS # Counters for TLB events 58options COUNT_IPIS # Per-CPU IPI interrupt counters 59 60 61 62##################################################################### 63# CPU OPTIONS 64 65# 66# You must specify at least one CPU (the one you intend to run on); 67# deleting the specification for CPUs you don't need to use may make 68# parts of the system run faster. 69# 70cpu HAMMER # aka K8, aka Opteron & Athlon64 71 72# 73# Options for CPU features. 74# 75 76 77##################################################################### 78# NETWORKING OPTIONS 79 80# 81# DEVICE_POLLING adds support for mixed interrupt-polling handling 82# of network device drivers, which has significant benefits in terms 83# of robustness to overloads and responsivity, as well as permitting 84# accurate scheduling of the CPU time between kernel network processing 85# and other activities. The drawback is a moderate (up to 1/HZ seconds) 86# potential increase in response times. 87# It is strongly recommended to use HZ=1000 or 2000 with DEVICE_POLLING 88# to achieve smoother behaviour. 89# Additionally, you can enable/disable polling at runtime with help of 90# the ifconfig(8) utility, and select the CPU fraction reserved to 91# userland with the sysctl variable kern.polling.user_frac 92# (default 50, range 0..100). 93# 94# Not all device drivers support this mode of operation at the time of 95# this writing. See polling(4) for more details. 96 97options DEVICE_POLLING 98 99# BPF_JITTER adds support for BPF just-in-time compiler. 100 101options BPF_JITTER 102 103# OpenFabrics Enterprise Distribution (Infiniband). 104options OFED 105options OFED_DEBUG_INIT 106 107# Sockets Direct Protocol 108options SDP 109options SDP_DEBUG 110 111# IP over Infiniband 112options IPOIB 113options IPOIB_DEBUG 114options IPOIB_CM 115 116 117##################################################################### 118# CLOCK OPTIONS 119 120# Provide read/write access to the memory in the clock chip. 121device nvram # Access to rtc cmos via /dev/nvram 122 123 124##################################################################### 125# MISCELLANEOUS DEVICES AND OPTIONS 126 127device speaker #Play IBM BASIC-style noises out your speaker 128hint.speaker.0.at="isa" 129hint.speaker.0.port="0x61" 130 131 132##################################################################### 133# HARDWARE BUS CONFIGURATION 134 135# 136# ISA bus 137# 138device isa 139 140# 141# Options for `isa': 142# 143# AUTO_EOI_1 enables the `automatic EOI' feature for the master 8259A 144# interrupt controller. This saves about 0.7-1.25 usec for each interrupt. 145# This option breaks suspend/resume on some portables. 146# 147# AUTO_EOI_2 enables the `automatic EOI' feature for the slave 8259A 148# interrupt controller. This saves about 0.7-1.25 usec for each interrupt. 149# Automatic EOI is documented not to work for for the slave with the 150# original i8259A, but it works for some clones and some integrated 151# versions. 152# 153# MAXMEM specifies the amount of RAM on the machine; if this is not 154# specified, FreeBSD will first read the amount of memory from the CMOS 155# RAM, so the amount of memory will initially be limited to 64MB or 16MB 156# depending on the BIOS. If the BIOS reports 64MB, a memory probe will 157# then attempt to detect the installed amount of RAM. If this probe 158# fails to detect >64MB RAM you will have to use the MAXMEM option. 159# The amount is in kilobytes, so for a machine with 128MB of RAM, it would 160# be 131072 (128 * 1024). 161# 162# BROKEN_KEYBOARD_RESET disables the use of the keyboard controller to 163# reset the CPU for reboot. This is needed on some systems with broken 164# keyboard controllers. 165 166options AUTO_EOI_1 167#options AUTO_EOI_2 168 169options MAXMEM=(128*1024) 170#options BROKEN_KEYBOARD_RESET 171 172# 173# AGP GART support 174device agp 175 176# 177# AGP debugging. 178# 179options AGP_DEBUG 180 181 182##################################################################### 183# HARDWARE DEVICE CONFIGURATION 184 185# To include support for VGA VESA video modes 186options VESA 187 188# Turn on extra debugging checks and output for VESA support. 189options VESA_DEBUG 190 191device dpms # DPMS suspend & resume via VESA BIOS 192 193# x86 real mode BIOS emulator, required by atkbdc/dpms/vesa 194options X86BIOS 195 196# 197# Optional devices: 198# 199 200# PS/2 mouse 201device psm 202hint.psm.0.at="atkbdc" 203hint.psm.0.irq="12" 204 205# Options for psm: 206options PSM_HOOKRESUME #hook the system resume event, useful 207 #for some laptops 208options PSM_RESETAFTERSUSPEND #reset the device at the resume event 209 210# The keyboard controller; it controls the keyboard and the PS/2 mouse. 211device atkbdc 212hint.atkbdc.0.at="isa" 213hint.atkbdc.0.port="0x060" 214 215# The AT keyboard 216device atkbd 217hint.atkbd.0.at="atkbdc" 218hint.atkbd.0.irq="1" 219 220# Options for atkbd: 221options ATKBD_DFLT_KEYMAP # specify the built-in keymap 222makeoptions ATKBD_DFLT_KEYMAP=fr.dvorak 223 224# `flags' for atkbd: 225# 0x01 Force detection of keyboard, else we always assume a keyboard 226# 0x02 Don't reset keyboard, useful for some newer ThinkPads 227# 0x03 Force detection and avoid reset, might help with certain 228# dockingstations 229# 0x04 Old-style (XT) keyboard support, useful for older ThinkPads 230 231# Video card driver for VGA adapters. 232device vga 233hint.vga.0.at="isa" 234 235# Options for vga: 236# Try the following option if the mouse pointer is not drawn correctly 237# or font does not seem to be loaded properly. May cause flicker on 238# some systems. 239options VGA_ALT_SEQACCESS 240 241# If you can dispense with some vga driver features, you may want to 242# use the following options to save some memory. 243#options VGA_NO_FONT_LOADING # don't save/load font 244#options VGA_NO_MODE_CHANGE # don't change video modes 245 246# Older video cards may require this option for proper operation. 247options VGA_SLOW_IOACCESS # do byte-wide i/o's to TS and GDC regs 248 249# The following option probably won't work with the LCD displays. 250options VGA_WIDTH90 # support 90 column modes 251 252# Debugging. 253options VGA_DEBUG 254 255# vt(4) drivers. 256device vt_vga # VGA 257device vt_efifb # EFI framebuffer 258 259# Linear framebuffer driver for S3 VESA 1.2 cards. Works on top of VESA. 260device s3pci 261 262# 3Dfx Voodoo Graphics, Voodoo II /dev/3dfx CDEV support. This will create 263# the /dev/3dfx0 device to work with glide implementations. This should get 264# linked to /dev/3dfx and /dev/voodoo. Note that this is not the same as 265# the tdfx DRI module from XFree86 and is completely unrelated. 266# 267# To enable Linuxulator support, one must also include COMPAT_LINUX in the 268# config as well. The other option is to load both as modules. 269 270device tdfx # Enable 3Dfx Voodoo support 271#XXX#device tdfx_linux # Enable Linuxulator support 272 273# 274# ACPI support using the Intel ACPI Component Architecture reference 275# implementation. 276# 277# ACPI_DEBUG enables the use of the debug.acpi.level and debug.acpi.layer 278# kernel environment variables to select initial debugging levels for the 279# Intel ACPICA code. (Note that the Intel code must also have USE_DEBUGGER 280# defined when it is built). 281 282device acpi 283options ACPI_DEBUG 284 285# The cpufreq(4) driver provides support for non-ACPI CPU frequency control 286device cpufreq 287 288# 289# Network interfaces: 290# 291 292# bxe: Broadcom NetXtreme II (BCM5771X/BCM578XX) PCIe 10Gb Ethernet 293# adapters. 294# ipw: Intel PRO/Wireless 2100 IEEE 802.11 adapter 295# Requires the ipw firmware module 296# iwi: Intel PRO/Wireless 2200BG/2225BG/2915ABG IEEE 802.11 adapters 297# Requires the iwi firmware module 298# iwn: Intel Wireless WiFi Link 1000/105/135/2000/4965/5000/6000/6050 abgn 299# 802.11 network adapters 300# Requires the iwn firmware module 301# mthca: Mellanox HCA InfiniBand 302# mlx4ib: Mellanox ConnectX HCA InfiniBand 303# mlx4en: Mellanox ConnectX HCA Ethernet 304# nfe: nVidia nForce MCP on-board Ethernet Networking (BSD open source) 305# sfxge: Solarflare SFC9000 family 10Gb Ethernet adapters 306# vmx: VMware VMXNET3 Ethernet (BSD open source) 307# wpi: Intel 3945ABG Wireless LAN controller 308# Requires the wpi firmware module 309 310device bxe # Broadcom NetXtreme II BCM5771X/BCM578XX 10GbE 311options ED_3C503 312options ED_HPP 313options ED_SIC 314device ipw # Intel 2100 wireless NICs. 315device iwi # Intel 2200BG/2225BG/2915ABG wireless NICs. 316device iwn # Intel 4965/1000/5000/6000 wireless NICs. 317device ixl # Intel 700 Series Physical Function 318device iavf # Intel Adaptive Virtual Function 319device mthca # Mellanox HCA InfiniBand 320device mlx4 # Shared code module between IB and Ethernet 321device mlx4ib # Mellanox ConnectX HCA InfiniBand 322device mlx4en # Mellanox ConnectX HCA Ethernet 323device nfe # nVidia nForce MCP on-board Ethernet 324device sfxge # Solarflare SFC9000 10Gb Ethernet 325device vmx # VMware VMXNET3 Ethernet 326device wpi # Intel 3945ABG wireless NICs. 327 328# IEEE 802.11 adapter firmware modules 329 330# Intel PRO/Wireless 2100 firmware: 331# ipwfw: BSS/IBSS/monitor mode firmware 332# ipwbssfw: BSS mode firmware 333# ipwibssfw: IBSS mode firmware 334# ipwmonitorfw: Monitor mode firmware 335# Intel PRO/Wireless 2200BG/2225BG/2915ABG firmware: 336# iwifw: BSS/IBSS/monitor mode firmware 337# iwibssfw: BSS mode firmware 338# iwiibssfw: IBSS mode firmware 339# iwimonitorfw: Monitor mode firmware 340# Intel Wireless WiFi Link 4965/1000/5000/6000 series firmware: 341# iwnfw: Single module to support all devices 342# iwn1000fw: Specific module for the 1000 only 343# iwn105fw: Specific module for the 105 only 344# iwn135fw: Specific module for the 135 only 345# iwn2000fw: Specific module for the 2000 only 346# iwn2030fw: Specific module for the 2030 only 347# iwn4965fw: Specific module for the 4965 only 348# iwn5000fw: Specific module for the 5000 only 349# iwn5150fw: Specific module for the 5150 only 350# iwn6000fw: Specific module for the 6000 only 351# iwn6000g2afw: Specific module for the 6000g2a only 352# iwn6000g2bfw: Specific module for the 6000g2b only 353# iwn6050fw: Specific module for the 6050 only 354# wpifw: Intel 3945ABG Wireless LAN Controller firmware 355 356device iwifw 357device iwibssfw 358device iwiibssfw 359device iwimonitorfw 360device ipwfw 361device ipwbssfw 362device ipwibssfw 363device ipwmonitorfw 364device iwnfw 365device iwn1000fw 366device iwn105fw 367device iwn135fw 368device iwn2000fw 369device iwn2030fw 370device iwn4965fw 371device iwn5000fw 372device iwn5150fw 373device iwn6000fw 374device iwn6000g2afw 375device iwn6000g2bfw 376device iwn6050fw 377device wpifw 378 379# 380# Non-Transparent Bridge (NTB) drivers 381# 382device if_ntb # Virtual NTB network interface 383device ntb_transport # NTB packet transport driver 384device ntb # NTB hardware interface 385device ntb_hw_amd # AMD NTB hardware driver 386device ntb_hw_intel # Intel NTB hardware driver 387device ntb_hw_plx # PLX NTB hardware driver 388 389# 390#XXX this stores pointers in a 32bit field that is defined by the hardware 391#device pst 392 393# 394# Areca 11xx and 12xx series of SATA II RAID controllers. 395# CAM is required. 396# 397device arcmsr # Areca SATA II RAID 398 399# 400# Microsemi smartpqi controllers. 401# These controllers have a SCSI-like interface, and require the 402# CAM infrastructure. 403# 404device smartpqi 405 406# 407# 3ware 9000 series PATA/SATA RAID controller driver and options. 408# The driver is implemented as a SIM, and so, needs the CAM infrastructure. 409# 410options TWA_DEBUG # 0-10; 10 prints the most messages. 411device twa # 3ware 9000 series PATA/SATA RAID 412 413# 414# Adaptec FSA RAID controllers, including integrated DELL controllers, 415# the Dell PERC 2/QC and the HP NetRAID-4M 416device aac 417device aacp # SCSI Passthrough interface (optional, CAM required) 418 419# 420# Adaptec by PMC RAID controllers, Series 6/7/8 and upcoming families 421device aacraid # Container interface, CAM required 422 423# 424# Highpoint RocketRAID 27xx. 425device hpt27xx 426 427# 428# Highpoint RocketRAID 182x. 429device hptmv 430 431# 432# Highpoint DC7280 and R750. 433device hptnr 434 435# 436# Highpoint RocketRAID. Supports RR172x, RR222x, RR2240, RR232x, RR2340, 437# RR2210, RR174x, RR2522, RR231x, RR230x. 438device hptrr 439 440# 441# Highpoint RocketRaid 3xxx series SATA RAID 442device hptiop 443 444# 445# IBM (now Adaptec) ServeRAID controllers 446device ips 447 448# 449# Intel integrated Memory Controller (iMC) SMBus controller 450# Sandybridge-Xeon, Ivybridge-Xeon, Haswell-Xeon, Broadwell-Xeon 451device imcsmb 452 453# 454# Intel C600 (Patsburg) integrated SAS controller 455device isci 456options ISCI_LOGGING # enable debugging in isci HAL 457 458# 459# NVM Express (NVMe) support 460device nvme # base NVMe driver 461device nvd # expose NVMe namespaces as disks, depends on nvme 462 463# 464# PMC-Sierra SAS/SATA controller 465device pmspcv 466 467# 468# SafeNet crypto driver: can be moved to the MI NOTES as soon as 469# it's tested on a big-endian machine 470# 471device safe # SafeNet 1141 472options SAFE_DEBUG # enable debugging support: hw.safe.debug 473options SAFE_RNDTEST # enable rndtest support 474 475# 476# VirtIO support 477# 478# The virtio entry provides a generic bus for use by the device drivers. 479# It must be combined with an interface that communicates with the host. 480# Multiple such interfaces are defined by the VirtIO specification. FreeBSD 481# only has support for PCI. Therefore, virtio_pci must be statically 482# compiled in or loaded as a module for the device drivers to function. 483# 484device virtio # Generic VirtIO bus (required) 485device virtio_pci # VirtIO PCI Interface 486device vtnet # VirtIO Ethernet device 487device virtio_blk # VirtIO Block device 488device virtio_scsi # VirtIO SCSI device 489device virtio_balloon # VirtIO Memory Balloon device 490device virtio_random # VirtIO Entropy device 491device virtio_console # VirtIO Console device 492 493# Microsoft Hyper-V enhancement support 494device hyperv # HyperV drivers 495 496# Xen HVM Guest Optimizations 497options XENHVM # Xen HVM kernel infrastructure 498device xenpci # Xen HVM Hypervisor services driver 499 500##################################################################### 501 502# 503# Miscellaneous hardware: 504# 505# ipmi: Intelligent Platform Management Interface 506# pbio: Parallel (8255 PPI) basic I/O (mode 0) port (e.g. Advantech PCL-724) 507# smbios: DMI/SMBIOS entry point 508# vpd: Vital Product Data kernel interface 509# asmc: Apple System Management Controller 510# si: Specialix International SI/XIO or SX intelligent serial card 511# tpm: Trusted Platform Module 512 513# Notes on the Specialix SI/XIO driver: 514# The host card is memory, not IO mapped. 515# The Rev 1 host cards use a 64K chunk, on a 32K boundary. 516# The Rev 2 host cards use a 32K chunk, on a 32K boundary. 517# The cards can use an IRQ of 11, 12 or 15. 518 519device ipmi 520device pbio 521hint.pbio.0.at="isa" 522hint.pbio.0.port="0x360" 523device smbios 524device vpd 525device asmc 526device tpm 527device padlock_rng # VIA Padlock RNG 528device rdrand_rng # Intel Bull Mountain RNG 529device aesni # AES-NI OpenCrypto module 530device ioat # Intel I/OAT DMA engine 531 532# 533# Laptop/Notebook options: 534# 535 536 537# 538# I2C Bus 539# 540 541# 542# Hardware watchdog timers: 543# 544# ichwd: Intel ICH watchdog timer 545# amdsbwd: AMD SB7xx watchdog timer 546# viawd: VIA south bridge watchdog timer 547# wbwd: Winbond watchdog timer 548# 549device ichwd 550device amdsbwd 551device viawd 552device wbwd 553 554# 555# Temperature sensors: 556# 557# coretemp: on-die sensor on Intel Core and newer CPUs 558# amdtemp: on-die sensor on AMD K8/K10/K11 CPUs 559# 560device coretemp 561device amdtemp 562 563# 564# CPU control pseudo-device. Provides access to MSRs, CPUID info and 565# microcode update feature. 566# 567device cpuctl 568 569# 570# SuperIO driver. 571# 572device superio 573 574# 575# System Management Bus (SMB) 576# 577options ENABLE_ALART # Control alarm on Intel intpm driver 578 579# 580# AMD System Management Network (SMN) 581# 582device amdsmn 583 584# 585# Number of initial kernel page table pages used for early bootstrap. 586# This number should include enough pages to map the kernel and any 587# modules or other data loaded with the kernel by the loader. Each 588# page table page maps 2MB. 589# 590options NKPT=31 591 592# EFI Runtime Services support 593options EFIRT 594 595 596##################################################################### 597# ABI Emulation 598 599#XXX keep these here for now and reactivate when support for emulating 600#XXX these 32 bit binaries is added. 601 602# Enable 32-bit runtime support for FreeBSD/i386 binaries. 603options COMPAT_FREEBSD32 604 605# Enable (32-bit) a.out binary support 606options COMPAT_AOUT 607 608# Enable 32-bit runtime support for CloudABI binaries. 609options COMPAT_CLOUDABI32 610 611# Enable 64-bit runtime support for CloudABI binaries. 612options COMPAT_CLOUDABI64 613 614# Enable Linux ABI emulation 615#XXX#options COMPAT_LINUX 616 617# Enable 32-bit Linux ABI emulation (requires COMPAT_FREEBSD32). 618options COMPAT_LINUX32 619 620# Enable the linux-like proc filesystem support (requires COMPAT_LINUX32 621# and PSEUDOFS) 622options LINPROCFS 623 624#Enable the linux-like sys filesystem support (requires COMPAT_LINUX32 625# and PSEUDOFS) 626options LINSYSFS 627 628##################################################################### 629# ZFS support 630 631options ZFS 632 633##################################################################### 634# VM OPTIONS 635 636# KSTACK_PAGES is the number of memory pages to assign to the kernel 637# stack of each thread. 638 639options KSTACK_PAGES=5 640 641# Enable detailed accounting by the PV entry allocator. 642 643options PV_STATS 644 645##################################################################### 646 647# More undocumented options for linting. 648# Note that documenting these are not considered an affront. 649 650options FB_INSTALL_CDEV # install a CDEV entry in /dev 651 652options KBDIO_DEBUG=2 653options KBD_MAXRETRY=4 654options KBD_MAXWAIT=6 655options KBD_RESETDELAY=201 656 657options PSM_DEBUG=1 658 659options TIMER_FREQ=((14318182+6)/12) 660 661options VM_KMEM_SIZE 662options VM_KMEM_SIZE_MAX 663options VM_KMEM_SIZE_SCALE 664 665# Enable NDIS binary driver support 666options NDISAPI 667device ndis 668 669 670# GCOV (code coverage) support 671 672options LINDEBUGFS 673options GCOV 674