NOTES revision 331769
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: stable/11/sys/i386/conf/NOTES 331769 2018-03-30 18:06:29Z hselasky $ 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# The apic device enables the use of the I/O APIC for interrupt delivery. 41# The apic device can be used in both UP and SMP kernels, but is required 42# for SMP kernels. Thus, the apic device is not strictly an SMP option, 43# but it is a prerequisite for SMP. 44# 45# Notes: 46# 47# HTT CPUs should only be used if they are enabled in the BIOS. For 48# the ACPI case, ACPI only correctly tells us about any HTT CPUs if 49# they are enabled. However, most HTT systems do not list HTT CPUs 50# in the MP Table if they are enabled, thus we guess at the HTT CPUs 51# for the MP Table case. However, we shouldn't try to guess and use 52# these CPUs if HTT is disabled. Thus, HTT guessing is only enabled 53# for the MP Table if the user explicitly asks for it via the 54# MPTABLE_FORCE_HTT option. Do NOT use this option if you have HTT 55# disabled in your BIOS. 56# 57# IPI_PREEMPTION instructs the kernel to preempt threads running on other 58# CPUS if needed. Relies on the PREEMPTION option 59 60# Mandatory: 61device apic # I/O apic 62 63# Optional: 64options MPTABLE_FORCE_HTT # Enable HTT CPUs with the MP Table 65options IPI_PREEMPTION 66 67# 68# Watchdog routines. 69# 70options MP_WATCHDOG 71 72# Debugging options. 73# 74options COUNT_XINVLTLB_HITS # Counters for TLB events 75options COUNT_IPIS # Per-CPU IPI interrupt counters 76 77 78 79##################################################################### 80# CPU OPTIONS 81 82# 83# You must specify at least one CPU (the one you intend to run on); 84# deleting the specification for CPUs you don't need to use may make 85# parts of the system run faster. 86# 87cpu I486_CPU 88cpu I586_CPU # aka Pentium(tm) 89cpu I686_CPU # aka Pentium Pro(tm) 90 91# 92# Options for CPU features. 93# 94# CPU_ATHLON_SSE_HACK tries to enable SSE instructions when the BIOS has 95# forgotten to enable them. 96# 97# CPU_BLUELIGHTNING_3X enables triple-clock mode on IBM Blue Lightning 98# CPU if CPU supports it. The default is double-clock mode on 99# BlueLightning CPU box. 100# 101# CPU_BLUELIGHTNING_FPU_OP_CACHE enables FPU operand cache on IBM 102# BlueLightning CPU. It works only with Cyrix FPU, and this option 103# should not be used with Intel FPU. 104# 105# CPU_BTB_EN enables branch target buffer on Cyrix 5x86 (NOTE 1). 106# 107# CPU_CYRIX_NO_LOCK enables weak locking for the entire address space 108# of Cyrix 6x86 and 6x86MX CPUs by setting the NO_LOCK bit of CCR1. 109# Otherwise, the NO_LOCK bit of CCR1 is cleared. (NOTE 3) 110# 111# CPU_DIRECT_MAPPED_CACHE sets L1 cache of Cyrix 486DLC CPU in direct 112# mapped mode. Default is 2-way set associative mode. 113# 114# CPU_DISABLE_5X86_LSSER disables load store serialize (i.e., enables 115# reorder). This option should not be used if you use memory mapped 116# I/O device(s). 117# 118# CPU_ELAN enables support for AMDs ElanSC520 CPU. 119# CPU_ELAN_PPS enables precision timestamp code. 120# CPU_ELAN_XTAL sets the clock crystal frequency in Hz. 121# 122# CPU_ENABLE_LONGRUN enables support for Transmeta Crusoe LongRun 123# technology which allows to restrict power consumption of the CPU by 124# using group of hw.crusoe.* sysctls. 125# 126# CPU_FASTER_5X86_FPU enables faster FPU exception handler. 127# 128# CPU_GEODE is for the SC1100 Geode embedded processor. This option 129# is necessary because the i8254 timecounter is toast. 130# 131# CPU_I486_ON_386 enables CPU cache on i486 based CPU upgrade products 132# for i386 machines. 133# 134# CPU_IORT defines I/O clock delay time (NOTE 1). Default values of 135# I/O clock delay time on Cyrix 5x86 and 6x86 are 0 and 7,respectively 136# (no clock delay). 137# 138# CPU_L2_LATENCY specifies the L2 cache latency value. This option is used 139# only when CPU_PPRO2CELERON is defined and Mendocino Celeron is detected. 140# The default value is 5. 141# 142# CPU_LOOP_EN prevents flushing the prefetch buffer if the destination 143# of a jump is already present in the prefetch buffer on Cyrix 5x86(NOTE 144# 1). 145# 146# CPU_PPRO2CELERON enables L2 cache of Mendocino Celeron CPUs. This option 147# is useful when you use Socket 8 to Socket 370 converter, because most Pentium 148# Pro BIOSs do not enable L2 cache of Mendocino Celeron CPUs. 149# 150# CPU_RSTK_EN enables return stack on Cyrix 5x86 (NOTE 1). 151# 152# CPU_SOEKRIS enables support www.soekris.com hardware. 153# 154# CPU_SUSP_HLT enables suspend on HALT. If this option is set, CPU 155# enters suspend mode following execution of HALT instruction. 156# 157# CPU_UPGRADE_HW_CACHE eliminates unneeded cache flush instruction(s). 158# 159# CPU_WT_ALLOC enables write allocation on Cyrix 6x86/6x86MX and AMD 160# K5/K6/K6-2 CPUs. 161# 162# CYRIX_CACHE_WORKS enables CPU cache on Cyrix 486 CPUs with cache 163# flush at hold state. 164# 165# CYRIX_CACHE_REALLY_WORKS enables (1) CPU cache on Cyrix 486 CPUs 166# without cache flush at hold state, and (2) write-back CPU cache on 167# Cyrix 6x86 whose revision < 2.7 (NOTE 2). 168# 169# NO_F00F_HACK disables the hack that prevents Pentiums (and ONLY 170# Pentiums) from locking up when a LOCK CMPXCHG8B instruction is 171# executed. This option is only needed if I586_CPU is also defined, 172# and should be included for any non-Pentium CPU that defines it. 173# 174# NO_MEMORY_HOLE is an optimisation for systems with AMD K6 processors 175# which indicates that the 15-16MB range is *definitely* not being 176# occupied by an ISA memory hole. 177# 178# NOTE 1: The options, CPU_BTB_EN, CPU_LOOP_EN, CPU_IORT, 179# CPU_LOOP_EN and CPU_RSTK_EN should not be used because of CPU bugs. 180# These options may crash your system. 181# 182# NOTE 2: If CYRIX_CACHE_REALLY_WORKS is not set, CPU cache is enabled 183# in write-through mode when revision < 2.7. If revision of Cyrix 184# 6x86 >= 2.7, CPU cache is always enabled in write-back mode. 185# 186# NOTE 3: This option may cause failures for software that requires 187# locked cycles in order to operate correctly. 188# 189options CPU_ATHLON_SSE_HACK 190options CPU_BLUELIGHTNING_3X 191options CPU_BLUELIGHTNING_FPU_OP_CACHE 192options CPU_BTB_EN 193options CPU_DIRECT_MAPPED_CACHE 194options CPU_DISABLE_5X86_LSSER 195options CPU_ELAN 196options CPU_ELAN_PPS 197options CPU_ELAN_XTAL=32768000 198options CPU_ENABLE_LONGRUN 199options CPU_FASTER_5X86_FPU 200options CPU_GEODE 201options CPU_I486_ON_386 202options CPU_IORT 203options CPU_L2_LATENCY=5 204options CPU_LOOP_EN 205options CPU_PPRO2CELERON 206options CPU_RSTK_EN 207options CPU_SOEKRIS 208options CPU_SUSP_HLT 209options CPU_UPGRADE_HW_CACHE 210options CPU_WT_ALLOC 211options CYRIX_CACHE_WORKS 212options CYRIX_CACHE_REALLY_WORKS 213#options NO_F00F_HACK 214 215# Debug options 216options NPX_DEBUG # enable npx debugging 217 218# 219# PERFMON causes the driver for Pentium/Pentium Pro performance counters 220# to be compiled. See perfmon(4) for more information. 221# 222options PERFMON 223 224# 225# XBOX causes the kernel to be bootable on the Microsoft XBox console system. 226# The resulting kernel will auto-detect whether it is being booted on a XBox, 227# so kernels compiled with this option will also work on an ordinary PC. 228# This option require I686_CPU. 229# 230# xboxfb includes support for the XBox frame buffer device. It is fully USB- 231# keyboard aware, and will only be used if an xbox is detected. This option 232# (obviously) requires XBOX support in your kernel. 233# 234# NOTE: xboxfb currently conflicts with syscons(4); if you have an XBOX and 235# include both in your kernel; you will not get any video output. Ordinary 236# PC's do not suffer from this. 237# 238options XBOX 239device xboxfb 240 241 242##################################################################### 243# NETWORKING OPTIONS 244 245# 246# DEVICE_POLLING adds support for mixed interrupt-polling handling 247# of network device drivers, which has significant benefits in terms 248# of robustness to overloads and responsivity, as well as permitting 249# accurate scheduling of the CPU time between kernel network processing 250# and other activities. The drawback is a moderate (up to 1/HZ seconds) 251# potential increase in response times. 252# It is strongly recommended to use HZ=1000 or 2000 with DEVICE_POLLING 253# to achieve smoother behaviour. 254# Additionally, you can enable/disable polling at runtime with help of 255# the ifconfig(8) utility, and select the CPU fraction reserved to 256# userland with the sysctl variable kern.polling.user_frac 257# (default 50, range 0..100). 258# 259# Not all device drivers support this mode of operation at the time of 260# this writing. See polling(4) for more details. 261 262options DEVICE_POLLING 263 264# BPF_JITTER adds support for BPF just-in-time compiler. 265 266options BPF_JITTER 267 268# OpenFabrics Enterprise Distribution (Infiniband). 269options OFED 270options OFED_DEBUG_INIT 271 272# Sockets Direct Protocol 273options SDP 274options SDP_DEBUG 275 276# IP over Infiniband 277options IPOIB 278options IPOIB_DEBUG 279options IPOIB_CM 280 281 282##################################################################### 283# CLOCK OPTIONS 284 285# Provide read/write access to the memory in the clock chip. 286device nvram # Access to rtc cmos via /dev/nvram 287 288 289##################################################################### 290# MISCELLANEOUS DEVICES AND OPTIONS 291 292device speaker #Play IBM BASIC-style noises out your speaker 293hint.speaker.0.at="isa" 294hint.speaker.0.port="0x61" 295device gzip #Exec gzipped a.out's. REQUIRES COMPAT_AOUT! 296device apm_saver # Requires APM 297 298 299##################################################################### 300# HARDWARE BUS CONFIGURATION 301 302# 303# ISA bus 304# 305device isa 306 307# 308# Options for `isa': 309# 310# AUTO_EOI_1 enables the `automatic EOI' feature for the master 8259A 311# interrupt controller. This saves about 0.7-1.25 usec for each interrupt. 312# This option breaks suspend/resume on some portables. 313# 314# AUTO_EOI_2 enables the `automatic EOI' feature for the slave 8259A 315# interrupt controller. This saves about 0.7-1.25 usec for each interrupt. 316# Automatic EOI is documented not to work for for the slave with the 317# original i8259A, but it works for some clones and some integrated 318# versions. 319# 320# MAXMEM specifies the amount of RAM on the machine; if this is not 321# specified, FreeBSD will first read the amount of memory from the CMOS 322# RAM, so the amount of memory will initially be limited to 64MB or 16MB 323# depending on the BIOS. If the BIOS reports 64MB, a memory probe will 324# then attempt to detect the installed amount of RAM. If this probe 325# fails to detect >64MB RAM you will have to use the MAXMEM option. 326# The amount is in kilobytes, so for a machine with 128MB of RAM, it would 327# be 131072 (128 * 1024). 328# 329# BROKEN_KEYBOARD_RESET disables the use of the keyboard controller to 330# reset the CPU for reboot. This is needed on some systems with broken 331# keyboard controllers. 332 333options AUTO_EOI_1 334#options AUTO_EOI_2 335 336options MAXMEM=(128*1024) 337#options BROKEN_KEYBOARD_RESET 338 339# 340# EISA bus 341# 342# The EISA bus device is `eisa'. It provides auto-detection and 343# configuration support for all devices on the EISA bus. 344 345device eisa 346 347# By default, only 10 EISA slots are probed, since the slot numbers 348# above clash with the configuration address space of the PCI subsystem, 349# and the EISA probe is not very smart about this. This is sufficient 350# for most machines, but in particular the HP NetServer LC series comes 351# with an onboard AIC7770 dual-channel SCSI controller on EISA slot #11, 352# thus you need to bump this figure to 12 for them. 353options EISA_SLOTS=12 354 355# 356# MCA bus: 357# 358# The MCA bus device is `mca'. It provides auto-detection and 359# configuration support for all devices on the MCA bus. 360# No hints are required for MCA. 361 362device mca 363 364# 365# AGP GART support 366device agp 367 368# AGP debugging. 369options AGP_DEBUG 370 371 372##################################################################### 373# HARDWARE DEVICE CONFIGURATION 374 375# To include support for VGA VESA video modes 376options VESA 377 378# Turn on extra debugging checks and output for VESA support. 379options VESA_DEBUG 380 381device dpms # DPMS suspend & resume via VESA BIOS 382 383# x86 real mode BIOS emulator, required by atkbdc/dpms/vesa 384options X86BIOS 385 386# 387# Hints for the non-optional Numeric Processing eXtension driver. 388hint.npx.0.flags="0x0" 389hint.npx.0.irq="13" 390 391# 392# `flags' for npx0: 393# 0x01 don't use the npx registers to optimize bcopy. 394# 0x02 don't use the npx registers to optimize bzero. 395# 0x04 don't use the npx registers to optimize copyin or copyout. 396# The npx registers are normally used to optimize copying and zeroing when 397# all of the following conditions are satisfied: 398# I586_CPU is an option 399# the cpu is an i586 (perhaps not a Pentium) 400# the probe for npx0 succeeds 401# INT 16 exception handling works. 402# Then copying and zeroing using the npx registers is normally 30-100% faster. 403# The flags can be used to control cases where it doesn't work or is slower. 404# Setting them at boot time using hints works right (the optimizations 405# are not used until later in the bootstrap when npx0 is attached). 406# Flag 0x08 automatically disables the i586 optimized routines. 407# 408 409# 410# Optional devices: 411# 412 413# PS/2 mouse 414device psm 415hint.psm.0.at="atkbdc" 416hint.psm.0.irq="12" 417 418# Options for psm: 419options PSM_HOOKRESUME #hook the system resume event, useful 420 #for some laptops 421options PSM_RESETAFTERSUSPEND #reset the device at the resume event 422 423# The keyboard controller; it controls the keyboard and the PS/2 mouse. 424device atkbdc 425hint.atkbdc.0.at="isa" 426hint.atkbdc.0.port="0x060" 427 428# The AT keyboard 429device atkbd 430hint.atkbd.0.at="atkbdc" 431hint.atkbd.0.irq="1" 432 433# Options for atkbd: 434options ATKBD_DFLT_KEYMAP # specify the built-in keymap 435makeoptions ATKBD_DFLT_KEYMAP=fr.dvorak 436 437# `flags' for atkbd: 438# 0x01 Force detection of keyboard, else we always assume a keyboard 439# 0x02 Don't reset keyboard, useful for some newer ThinkPads 440# 0x03 Force detection and avoid reset, might help with certain 441# dockingstations 442# 0x04 Old-style (XT) keyboard support, useful for older ThinkPads 443 444# Video card driver for VGA adapters. 445device vga 446hint.vga.0.at="isa" 447 448# Options for vga: 449# Try the following option if the mouse pointer is not drawn correctly 450# or font does not seem to be loaded properly. May cause flicker on 451# some systems. 452options VGA_ALT_SEQACCESS 453 454# If you can dispense with some vga driver features, you may want to 455# use the following options to save some memory. 456#options VGA_NO_FONT_LOADING # don't save/load font 457#options VGA_NO_MODE_CHANGE # don't change video modes 458 459# Older video cards may require this option for proper operation. 460options VGA_SLOW_IOACCESS # do byte-wide i/o's to TS and GDC regs 461 462# The following option probably won't work with the LCD displays. 463options VGA_WIDTH90 # support 90 column modes 464 465# Debugging. 466options VGA_DEBUG 467 468# vt(4) drivers. 469device vt_vga 470 471# Linear framebuffer driver for S3 VESA 1.2 cards. Works on top of VESA. 472device s3pci 473 474# 3Dfx Voodoo Graphics, Voodoo II /dev/3dfx CDEV support. This will create 475# the /dev/3dfx0 device to work with glide implementations. This should get 476# linked to /dev/3dfx and /dev/voodoo. Note that this is not the same as 477# the tdfx DRI module from XFree86 and is completely unrelated. 478# 479# To enable Linuxulator support, one must also include COMPAT_LINUX in the 480# config as well. The other option is to load both as modules. 481 482device tdfx # Enable 3Dfx Voodoo support 483device tdfx_linux # Enable Linuxulator support 484 485# 486# ACPI support using the Intel ACPI Component Architecture reference 487# implementation. 488# 489# ACPI_DEBUG enables the use of the debug.acpi.level and debug.acpi.layer 490# kernel environment variables to select initial debugging levels for the 491# Intel ACPICA code. (Note that the Intel code must also have USE_DEBUGGER 492# defined when it is built). 493 494device acpi 495options ACPI_DEBUG 496options ACPI_DMAR 497 498# ACPI WMI Mapping driver 499device acpi_wmi 500 501# ACPI Asus Extras (LCD backlight/brightness, video output, etc.) 502device acpi_asus 503 504# ACPI Fujitsu Extras (Buttons) 505device acpi_fujitsu 506 507# ACPI extras driver for HP laptops 508device acpi_hp 509 510# ACPI extras driver for IBM laptops 511device acpi_ibm 512 513# ACPI Panasonic Extras (LCD backlight/brightness, video output, etc.) 514device acpi_panasonic 515 516# ACPI Sony extra (LCD brightness) 517device acpi_sony 518 519# ACPI Toshiba Extras (LCD backlight/brightness, video output, etc.) 520device acpi_toshiba 521 522# ACPI Video Extensions (LCD backlight/brightness, video output, etc.) 523device acpi_video 524 525# ACPI Docking Station 526device acpi_dock 527 528# ACPI ASOC ATK0110 ASUSTeK AI Booster (voltage, temperature and fan sensors) 529device aibs 530 531# The cpufreq(4) driver provides support for non-ACPI CPU frequency control 532device cpufreq 533 534# Direct Rendering modules for 3D acceleration. 535device drm # DRM core module required by DRM drivers 536device i915drm # Intel i830 through i915 537device mach64drm # ATI Rage Pro, Rage Mobility P/M, Rage XL 538device mgadrm # AGP Matrox G200, G400, G450, G550 539device r128drm # ATI Rage 128 540device radeondrm # ATI Radeon 541device savagedrm # S3 Savage3D, Savage4 542device sisdrm # SiS 300/305, 540, 630 543device tdfxdrm # 3dfx Voodoo 3/4/5 and Banshee 544device viadrm # VIA 545options DRM_DEBUG # Include debug printfs (slow) 546 547# 548# mse: Logitech and ATI InPort bus mouse ports 549 550device mse 551hint.mse.0.at="isa" 552hint.mse.0.port="0x23c" 553hint.mse.0.irq="5" 554 555# 556# Network interfaces: 557# 558 559# bxe: Broadcom NetXtreme II (BCM5771X/BCM578XX) PCIe 10Gb Ethernet 560# adapters. 561# ce: Cronyx Tau-PCI/32 sync single/dual port G.703/E1 serial adaptor 562# with 32 HDLC subchannels (requires sppp (default), or NETGRAPH if 563# NETGRAPH_CRONYX is configured) 564# cp: Cronyx Tau-PCI sync single/dual/four port 565# V.35/RS-232/RS-530/RS-449/X.21/G.703/E1/E3/T3/STS-1 566# serial adaptor (requires sppp (default), or NETGRAPH if 567# NETGRAPH_CRONYX is configured) 568# cs: IBM Etherjet and other Crystal Semi CS89x0-based adapters 569# ctau: Cronyx Tau sync dual port V.35/RS-232/RS-530/RS-449/X.21/G.703/E1 570# serial adaptor (requires sppp (default), or NETGRAPH if 571# NETGRAPH_CRONYX is configured) 572# ed: Western Digital and SMC 80xx; Novell NE1000 and NE2000; 3Com 3C503 573# HP PC Lan+, various PC Card devices 574# (requires miibus) 575# ie: AT&T StarLAN 10 and EN100; 3Com 3C507; unknown NI5210; 576# Intel EtherExpress 577# ipw: Intel PRO/Wireless 2100 IEEE 802.11 adapter 578# iwi: Intel PRO/Wireless 2200BG/2225BG/2915ABG IEEE 802.11 adapters 579# Requires the iwi firmware module 580# iwn: Intel Wireless WiFi Link 1000/105/135/2000/4965/5000/6000/6050 abgn 581# 802.11 network adapters 582# Requires the iwn firmware module 583# mthca: Mellanox HCA InfiniBand 584# mlx4ib: Mellanox ConnectX HCA InfiniBand 585# mlx4en: Mellanox ConnectX HCA Ethernet 586# nfe: nVidia nForce MCP on-board Ethernet Networking (BSD open source) 587# sbni: Granch SBNI12-xx ISA and PCI adapters 588# vmx: VMware VMXNET3 Ethernet (BSD open source) 589# wl: Lucent Wavelan (ISA card only). 590# wpi: Intel 3945ABG Wireless LAN controller 591# Requires the wpi firmware module 592 593# Order for ISA/EISA devices is important here 594 595device bxe # Broadcom NetXtreme II BCM5771X/BCM578XX 10GbE 596device ce 597device cp 598device cs # Crystal Semiconductor CS89x0 NIC 599hint.cs.0.at="isa" 600hint.cs.0.port="0x300" 601device ctau 602hint.ctau.0.at="isa" 603hint.ctau.0.port="0x240" 604hint.ctau.0.irq="15" 605hint.ctau.0.drq="7" 606#options NETGRAPH_CRONYX # Enable NETGRAPH support for Cronyx adapter(s) 607device ed # NE[12]000, SMC Ultra, 3c503, DS8390 cards 608options ED_3C503 609options ED_HPP 610options ED_SIC 611hint.ed.0.at="isa" 612hint.ed.0.port="0x280" 613hint.ed.0.irq="5" 614hint.ed.0.maddr="0xd8000" 615device ie # EtherExpress 8/16, 3C507, StarLAN 10 etc. 616# Hints only required for Starlan 617hint.ie.2.at="isa" 618hint.ie.2.port="0x300" 619hint.ie.2.irq="5" 620hint.ie.2.maddr="0xd0000" 621device ipw # Intel 2100 wireless NICs. 622device iwi # Intel 2200BG/2225BG/2915ABG wireless NICs. 623device iwn # Intel 4965/1000/5000/6000 wireless NICs. 624# Hint for the i386-only ISA front-end of le(4). 625hint.le.0.at="isa" 626hint.le.0.port="0x280" 627hint.le.0.irq="10" 628hint.le.0.drq="0" 629device mthca # Mellanox HCA InfiniBand 630device mlx4 # Shared code module between IB and Ethernet 631device mlx4ib # Mellanox ConnectX HCA InfiniBand 632device mlx4en # Mellanox ConnectX HCA Ethernet 633device nfe # nVidia nForce MCP on-board Ethernet 634device sbni 635hint.sbni.0.at="isa" 636hint.sbni.0.port="0x210" 637hint.sbni.0.irq="0xefdead" 638hint.sbni.0.flags="0" 639device vmx # VMware VMXNET3 Ethernet 640device wl 641hint.wl.0.at="isa" 642hint.wl.0.port="0x300" 643options WLCACHE # enables the signal-strength cache 644options WLDEBUG # enables verbose debugging output 645device wpi # Intel 3945ABG wireless NICs. 646 647# IEEE 802.11 adapter firmware modules 648 649# Intel PRO/Wireless 2100 firmware: 650# ipwfw: BSS/IBSS/monitor mode firmware 651# ipwbssfw: BSS mode firmware 652# ipwibssfw: IBSS mode firmware 653# ipwmonitorfw: Monitor mode firmware 654# Intel PRO/Wireless 2200BG/2225BG/2915ABG firmware: 655# iwifw: BSS/IBSS/monitor mode firmware 656# iwibssfw: BSS mode firmware 657# iwiibssfw: IBSS mode firmware 658# iwimonitorfw: Monitor mode firmware 659# Intel Wireless WiFi Link 4965/1000/5000/6000 series firmware: 660# iwnfw: Single module to support all devices 661# iwn1000fw: Specific module for the 1000 only 662# iwn105fw: Specific module for the 105 only 663# iwn135fw: Specific module for the 135 only 664# iwn2000fw: Specific module for the 2000 only 665# iwn2030fw: Specific module for the 2030 only 666# iwn4965fw: Specific module for the 4965 only 667# iwn5000fw: Specific module for the 5000 only 668# iwn5150fw: Specific module for the 5150 only 669# iwn6000fw: Specific module for the 6000 only 670# iwn6000g2afw: Specific module for the 6000g2a only 671# iwn6000g2bfw: Specific module for the 6000g2b only 672# iwn6050fw: Specific module for the 6050 only 673# wpifw: Intel 3945ABG Wireless LAN Controller firmware 674 675device iwifw 676device iwibssfw 677device iwiibssfw 678device iwimonitorfw 679device ipwfw 680device ipwbssfw 681device ipwibssfw 682device ipwmonitorfw 683device iwnfw 684device iwn1000fw 685device iwn105fw 686device iwn135fw 687device iwn2000fw 688device iwn2030fw 689device iwn4965fw 690device iwn5000fw 691device iwn5150fw 692device iwn6000fw 693device iwn6000g2afw 694device iwn6000g2bfw 695device iwn6050fw 696device wpifw 697 698# 699# Non-Transparent Bridge (NTB) drivers 700# 701device if_ntb # Virtual NTB network interface 702device ntb_transport # NTB packet transport driver 703device ntb # NTB hardware interface 704device ntb_hw_intel # Intel NTB hardware driver 705device ntb_hw_plx # PLX NTB hardware driver 706 707# 708# ATA raid adapters 709# 710device pst 711 712# 713# Areca 11xx and 12xx series of SATA II RAID controllers. 714# CAM is required. 715# 716device arcmsr # Areca SATA II RAID 717 718# 719# 3ware 9000 series PATA/SATA RAID controller driver and options. 720# The driver is implemented as a SIM, and so, needs the CAM infrastructure. 721# 722options TWA_DEBUG # 0-10; 10 prints the most messages. 723options TWA_FLASH_FIRMWARE # firmware image bundled when defined. 724device twa # 3ware 9000 series PATA/SATA RAID 725 726# 727# SCSI host adapters: 728# 729# ncv: NCR 53C500 based SCSI host adapters. 730# nsp: Workbit Ninja SCSI-3 based PC Card SCSI host adapters. 731# stg: TMC 18C30, 18C50 based SCSI host adapters. 732 733device ncv 734device nsp 735device stg 736hint.stg.0.at="isa" 737hint.stg.0.port="0x140" 738hint.stg.0.port="11" 739 740# 741# Adaptec FSA RAID controllers, including integrated DELL controllers, 742# the Dell PERC 2/QC and the HP NetRAID-4M 743device aac 744device aacp # SCSI Passthrough interface (optional, CAM required) 745 746# 747# Adaptec by PMC RAID controllers, Series 6/7/8 and upcoming families 748device aacraid # Container interface, CAM required 749 750# 751# Highpoint RocketRAID 27xx. 752device hpt27xx 753 754# 755# Highpoint RocketRAID 182x. 756device hptmv 757 758# 759# Highpoint DC7280 and R750. 760device hptnr 761 762# 763# Highpoint RocketRAID. Supports RR172x, RR222x, RR2240, RR232x, RR2340, 764# RR2210, RR174x, RR2522, RR231x, RR230x. 765device hptrr 766 767# 768# Highpoint RocketRaid 3xxx series SATA RAID 769device hptiop 770 771# 772# Intel integrated Memory Controller (iMC) SMBus controller 773# Sandybridge-Xeon, Ivybridge-Xeon, Haswell-Xeon, Broadwell-Xeon 774device imcsmb 775 776# 777# IBM (now Adaptec) ServeRAID controllers 778device ips 779 780# 781# Intel C600 (Patsburg) integrated SAS controller 782device isci 783options ISCI_LOGGING # enable debugging in isci HAL 784 785# 786# NVM Express (NVMe) support 787device nvme # base NVMe driver 788device nvd # expose NVMe namespaces as disks, depends on nvme 789 790# 791# PMC-Sierra SAS/SATA controller 792device pmspcv 793# 794# SafeNet crypto driver: can be moved to the MI NOTES as soon as 795# it's tested on a big-endian machine 796# 797device safe # SafeNet 1141 798options SAFE_DEBUG # enable debugging support: hw.safe.debug 799options SAFE_RNDTEST # enable rndtest support 800 801# 802# glxiic is an I2C driver for the AMD Geode LX CS5536 System Management Bus 803# controller. Requires 'device iicbus'. 804# 805device glxiic # AMD Geode LX CS5536 System Management Bus 806 807# 808# glxsb is a driver for the Security Block in AMD Geode LX processors. 809# Requires 'device crypto'. 810# 811device glxsb # AMD Geode LX Security Block 812 813# 814# VirtIO support 815# 816# The virtio entry provides a generic bus for use by the device drivers. 817# It must be combined with an interface that communicates with the host. 818# Multiple such interfaces defined by the VirtIO specification. FreeBSD 819# only has support for PCI. Therefore, virtio_pci must be statically 820# compiled in or loaded as a module for the device drivers to function. 821# 822device virtio # Generic VirtIO bus (required) 823device virtio_pci # VirtIO PCI Interface 824device vtnet # VirtIO Ethernet device 825device virtio_blk # VirtIO Block device 826device virtio_scsi # VirtIO SCSI device 827device virtio_balloon # VirtIO Memory Balloon device 828device virtio_random # VirtIO Entropy device 829device virtio_console # VirtIO Console device 830 831device hyperv # HyperV drivers 832 833##################################################################### 834 835# 836# Miscellaneous hardware: 837# 838# apm: Laptop Advanced Power Management (experimental) 839# ipmi: Intelligent Platform Management Interface 840# smapi: System Management Application Program Interface driver 841# smbios: DMI/SMBIOS entry point 842# vpd: Vital Product Data kernel interface 843# pmtimer: Adjust system timer at wakeup time 844# pbio: Parallel (8255 PPI) basic I/O (mode 0) port (e.g. Advantech PCL-724) 845# spic: Sony Programmable I/O controller (VAIO notebooks) 846# asmc: Apple System Management Controller 847# si: Specialix International SI/XIO or SX intelligent serial card driver 848# tpm: Trusted Platform Module 849 850# Notes on APM 851# The flags takes the following meaning for apm0: 852# 0x0020 Statclock is broken. 853 854# Notes on the Specialix SI/XIO driver: 855# The host card is memory, not IO mapped. 856# The Rev 1 host cards use a 64K chunk, on a 32K boundary. 857# The Rev 2 host cards use a 32K chunk, on a 32K boundary. 858# The cards can use an IRQ of 11, 12 or 15. 859 860# Notes on the Sony Programmable I/O controller 861# This is a temporary driver that should someday be replaced by something 862# that hooks into the ACPI layer. The device is hooked to the PIIX4's 863# General Device 10 decoder, which means you have to fiddle with PCI 864# registers to map it in, even though it is otherwise treated here as 865# an ISA device. At the moment, the driver polls, although the device 866# is capable of generating interrupts. It largely undocumented. 867# The port location in the hint is where you WANT the device to be 868# mapped. 0x10a0 seems to be traditional. At the moment the jogdial 869# is the only thing truly supported, but apparently a fair percentage 870# of the Vaio extra features are controlled by this device. 871 872device apm 873hint.apm.0.flags="0x20" 874device ipmi 875device smapi 876device smbios 877device vpd 878device pmtimer 879device pbio 880hint.pbio.0.at="isa" 881hint.pbio.0.port="0x360" 882device spic 883hint.spic.0.at="isa" 884hint.spic.0.port="0x10a0" 885device asmc 886device si 887device tpm 888device padlock_rng # VIA Padlock RNG 889device rdrand_rng # Intel Bull Mountain RNG 890device aesni # AES-NI OpenCrypto module 891 892# 893# Laptop/Notebook options: 894# 895# See also: 896# apm under `Miscellaneous hardware' 897# above. 898 899# For older notebooks that signal a powerfail condition (external 900# power supply dropped, or battery state low) by issuing an NMI: 901 902options POWERFAIL_NMI # make it beep instead of panicing 903 904# 905# I2C Bus 906# 907# Philips i2c bus support is provided by the `iicbus' device. 908# 909# Supported interfaces: 910# pcf Philips PCF8584 ISA-bus controller 911# 912device pcf 913hint.pcf.0.at="isa" 914hint.pcf.0.port="0x320" 915hint.pcf.0.irq="5" 916 917# 918# Hardware watchdog timers: 919# 920# ichwd: Intel ICH watchdog timer 921# amdsbwd: AMD SB7xx watchdog timer 922# viawd: VIA south bridge watchdog timer 923# wbwd: Winbond watchdog timer 924# 925device ichwd 926device amdsbwd 927device viawd 928device wbwd 929 930# 931# Temperature sensors: 932# 933# coretemp: on-die sensor on Intel Core and newer CPUs 934# amdtemp: on-die sensor on AMD K8/K10/K11 CPUs 935# 936device coretemp 937device amdtemp 938 939# 940# CPU control pseudo-device. Provides access to MSRs, CPUID info and 941# microcode update feature. 942# 943device cpuctl 944 945# 946# System Management Bus (SMB) 947# 948options ENABLE_ALART # Control alarm on Intel intpm driver 949 950# 951# Set the number of PV entries per process. Increasing this can 952# stop panics related to heavy use of shared memory. However, that can 953# (combined with large amounts of physical memory) cause panics at 954# boot time due the kernel running out of VM space. 955# 956# If you're tweaking this, you might also want to increase the sysctls 957# "vm.v_free_min", "vm.v_free_reserved", and "vm.v_free_target". 958# 959# The value below is the one more than the default. 960# 961options PMAP_SHPGPERPROC=201 962 963# 964# Change the size of the kernel virtual address space. Due to 965# constraints in loader(8) on i386, this must be a multiple of 4. 966# 256 = 1 GB of kernel address space. Increasing this also causes 967# a reduction of the address space in user processes. 512 splits 968# the 4GB cpu address space in half (2GB user, 2GB kernel). For PAE 969# kernels, the value will need to be double non-PAE. A value of 1024 970# for PAE kernels is necessary to split the address space in half. 971# This will likely need to be increased to handle memory sizes >4GB. 972# PAE kernels default to a value of 512. 973# 974options KVA_PAGES=260 975 976# 977# Number of initial kernel page table pages used for early bootstrap. 978# This number should include enough pages to map the kernel, any 979# modules or other data loaded with the kernel by the loader, and data 980# structures allocated before the VM system is initialized such as the 981# vm_page_t array. Each page table page maps 4MB (2MB with PAE). 982# 983options NKPT=31 984 985 986##################################################################### 987# ABI Emulation 988 989# Enable iBCS2 runtime support for SCO and ISC binaries 990#options IBCS2 991 992# Emulate spx device for client side of SVR3 local X interface 993options SPX_HACK 994 995# Enable 32-bit runtime support for CloudABI binaries. 996options COMPAT_CLOUDABI32 997 998# Enable Linux ABI emulation 999options COMPAT_LINUX 1000 1001# Enable i386 a.out binary support 1002options COMPAT_AOUT 1003 1004# Enable the linux-like proc filesystem support (requires COMPAT_LINUX 1005# and PSEUDOFS) 1006options LINPROCFS 1007 1008#Enable the linux-like sys filesystem support (requires COMPAT_LINUX 1009# and PSEUDOFS) 1010options LINSYSFS 1011 1012# 1013# SysVR4 ABI emulation 1014# 1015# The svr4 ABI emulator can be statically compiled into the kernel or loaded as 1016# a KLD module. 1017# The STREAMS network emulation code can also be compiled statically or as a 1018# module. If loaded as a module, it must be loaded before the svr4 module 1019# (the /usr/sbin/svr4 script does this for you). If compiling statically, 1020# the `streams' device must be configured into any kernel which also 1021# specifies COMPAT_SVR4. It is possible to have a statically-configured 1022# STREAMS device and a dynamically loadable svr4 emulator; the /usr/sbin/svr4 1023# script understands that it doesn't need to load the `streams' module under 1024# those circumstances. 1025# Caveat: At this time, `options KTRACE' is required for the svr4 emulator 1026# (whether static or dynamic). 1027# 1028options COMPAT_SVR4 # build emulator statically 1029options DEBUG_SVR4 # enable verbose debugging 1030device streams # STREAMS network driver (required for svr4). 1031 1032# Enable NDIS binary driver support 1033options NDISAPI 1034device ndis 1035 1036 1037##################################################################### 1038# VM OPTIONS 1039 1040# Disable the 4 MByte page PSE CPU feature. The PSE feature allows the 1041# kernel to use 4 MByte pages to map the kernel instead of 4k pages. 1042# This saves on the amount of memory needed for page tables needed to 1043# map the kernel. You should only disable this feature as a temporary 1044# workaround if you are having problems with it enabled. 1045# 1046#options DISABLE_PSE 1047 1048# Disable the global pages PGE CPU feature. The PGE feature allows pages 1049# to be marked with the PG_G bit. TLB entries for these pages are not 1050# flushed from the cache when %cr3 is reloaded. This can make context 1051# switches less expensive. You should only disable this feature as a 1052# temporary workaround if you are having problems with it enabled. 1053# 1054#options DISABLE_PG_G 1055 1056# KSTACK_PAGES is the number of memory pages to assign to the kernel 1057# stack of each thread. 1058 1059options KSTACK_PAGES=3 1060 1061# Enable detailed accounting by the PV entry allocator. 1062 1063options PV_STATS 1064 1065##################################################################### 1066 1067# More undocumented options for linting. 1068# Note that documenting these are not considered an affront. 1069 1070options FB_INSTALL_CDEV # install a CDEV entry in /dev 1071 1072options I586_PMC_GUPROF=0x70000 1073options KBDIO_DEBUG=2 1074options KBD_MAXRETRY=4 1075options KBD_MAXWAIT=6 1076options KBD_RESETDELAY=201 1077 1078options PSM_DEBUG=1 1079 1080options TIMER_FREQ=((14318182+6)/12) 1081 1082options VM_KMEM_SIZE 1083options VM_KMEM_SIZE_MAX 1084options VM_KMEM_SIZE_SCALE 1085 1086 1087