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" 130device gzip #Exec gzipped a.out's. REQUIRES COMPAT_AOUT! 131 132 133##################################################################### 134# HARDWARE BUS CONFIGURATION 135 136# 137# ISA bus 138# 139device isa 140 141# 142# Options for `isa': 143# 144# AUTO_EOI_1 enables the `automatic EOI' feature for the master 8259A 145# interrupt controller. This saves about 0.7-1.25 usec for each interrupt. 146# This option breaks suspend/resume on some portables. 147# 148# AUTO_EOI_2 enables the `automatic EOI' feature for the slave 8259A 149# interrupt controller. This saves about 0.7-1.25 usec for each interrupt. 150# Automatic EOI is documented not to work for for the slave with the 151# original i8259A, but it works for some clones and some integrated 152# versions. 153# 154# MAXMEM specifies the amount of RAM on the machine; if this is not 155# specified, FreeBSD will first read the amount of memory from the CMOS 156# RAM, so the amount of memory will initially be limited to 64MB or 16MB 157# depending on the BIOS. If the BIOS reports 64MB, a memory probe will 158# then attempt to detect the installed amount of RAM. If this probe 159# fails to detect >64MB RAM you will have to use the MAXMEM option. 160# The amount is in kilobytes, so for a machine with 128MB of RAM, it would 161# be 131072 (128 * 1024). 162# 163# BROKEN_KEYBOARD_RESET disables the use of the keyboard controller to 164# reset the CPU for reboot. This is needed on some systems with broken 165# keyboard controllers. 166 167options AUTO_EOI_1 168#options AUTO_EOI_2 169 170options MAXMEM=(128*1024) 171#options BROKEN_KEYBOARD_RESET 172 173# 174# AGP GART support 175device agp 176 177# 178# AGP debugging. 179# 180options AGP_DEBUG 181 182 183##################################################################### 184# HARDWARE DEVICE CONFIGURATION 185 186# To include support for VGA VESA video modes 187options VESA 188 189# Turn on extra debugging checks and output for VESA support. 190options VESA_DEBUG 191 192device dpms # DPMS suspend & resume via VESA BIOS 193 194# x86 real mode BIOS emulator, required by atkbdc/dpms/vesa 195options X86BIOS 196 197# 198# Optional devices: 199# 200 201# PS/2 mouse 202device psm 203hint.psm.0.at="atkbdc" 204hint.psm.0.irq="12" 205 206# Options for psm: 207options PSM_HOOKRESUME #hook the system resume event, useful 208 #for some laptops 209options PSM_RESETAFTERSUSPEND #reset the device at the resume event 210 211# The keyboard controller; it controls the keyboard and the PS/2 mouse. 212device atkbdc 213hint.atkbdc.0.at="isa" 214hint.atkbdc.0.port="0x060" 215 216# The AT keyboard 217device atkbd 218hint.atkbd.0.at="atkbdc" 219hint.atkbd.0.irq="1" 220 221# Options for atkbd: 222options ATKBD_DFLT_KEYMAP # specify the built-in keymap 223makeoptions ATKBD_DFLT_KEYMAP=fr.dvorak 224 225# `flags' for atkbd: 226# 0x01 Force detection of keyboard, else we always assume a keyboard 227# 0x02 Don't reset keyboard, useful for some newer ThinkPads 228# 0x03 Force detection and avoid reset, might help with certain 229# dockingstations 230# 0x04 Old-style (XT) keyboard support, useful for older ThinkPads 231 232# Video card driver for VGA adapters. 233device vga 234hint.vga.0.at="isa" 235 236# Options for vga: 237# Try the following option if the mouse pointer is not drawn correctly 238# or font does not seem to be loaded properly. May cause flicker on 239# some systems. 240options VGA_ALT_SEQACCESS 241 242# If you can dispense with some vga driver features, you may want to 243# use the following options to save some memory. 244#options VGA_NO_FONT_LOADING # don't save/load font 245#options VGA_NO_MODE_CHANGE # don't change video modes 246 247# Older video cards may require this option for proper operation. 248options VGA_SLOW_IOACCESS # do byte-wide i/o's to TS and GDC regs 249 250# The following option probably won't work with the LCD displays. 251options VGA_WIDTH90 # support 90 column modes 252 253# Debugging. 254options VGA_DEBUG 255 256# vt(4) drivers. 257device vt_vga # VGA 258device vt_efifb # EFI framebuffer 259 260# Linear framebuffer driver for S3 VESA 1.2 cards. Works on top of VESA. 261device s3pci 262 263# 3Dfx Voodoo Graphics, Voodoo II /dev/3dfx CDEV support. This will create 264# the /dev/3dfx0 device to work with glide implementations. This should get 265# linked to /dev/3dfx and /dev/voodoo. Note that this is not the same as 266# the tdfx DRI module from XFree86 and is completely unrelated. 267# 268# To enable Linuxulator support, one must also include COMPAT_LINUX in the 269# config as well. The other option is to load both as modules. 270 271device tdfx # Enable 3Dfx Voodoo support 272#XXX#device tdfx_linux # Enable Linuxulator support 273 274# 275# ACPI support using the Intel ACPI Component Architecture reference 276# implementation. 277# 278# ACPI_DEBUG enables the use of the debug.acpi.level and debug.acpi.layer 279# kernel environment variables to select initial debugging levels for the 280# Intel ACPICA code. (Note that the Intel code must also have USE_DEBUGGER 281# defined when it is built). 282 283device acpi 284options ACPI_DEBUG 285 286# The cpufreq(4) driver provides support for non-ACPI CPU frequency control 287device cpufreq 288 289# Direct Rendering modules for 3D acceleration. 290device drm # DRM core module required by DRM drivers 291device mach64drm # ATI Rage Pro, Rage Mobility P/M, Rage XL 292device mgadrm # AGP Matrox G200, G400, G450, G550 293device r128drm # ATI Rage 128 294device savagedrm # S3 Savage3D, Savage4 295device sisdrm # SiS 300/305, 540, 630 296device tdfxdrm # 3dfx Voodoo 3/4/5 and Banshee 297device viadrm # VIA 298options DRM_DEBUG # Include debug printfs (slow) 299 300# 301# Network interfaces: 302# 303 304# bxe: Broadcom NetXtreme II (BCM5771X/BCM578XX) PCIe 10Gb Ethernet 305# adapters. 306# ed: Western Digital and SMC 80xx; Novell NE1000 and NE2000; 3Com 3C503 307# HP PC Lan+, various PC Card devices 308# (requires miibus) 309# ipw: Intel PRO/Wireless 2100 IEEE 802.11 adapter 310# Requires the ipw firmware module 311# iwi: Intel PRO/Wireless 2200BG/2225BG/2915ABG IEEE 802.11 adapters 312# Requires the iwi firmware module 313# iwn: Intel Wireless WiFi Link 1000/105/135/2000/4965/5000/6000/6050 abgn 314# 802.11 network adapters 315# Requires the iwn firmware module 316# mthca: Mellanox HCA InfiniBand 317# mlx4ib: Mellanox ConnectX HCA InfiniBand 318# mlx4en: Mellanox ConnectX HCA Ethernet 319# nfe: nVidia nForce MCP on-board Ethernet Networking (BSD open source) 320# sfxge: Solarflare SFC9000 family 10Gb Ethernet adapters 321# vmx: VMware VMXNET3 Ethernet (BSD open source) 322# wpi: Intel 3945ABG Wireless LAN controller 323# Requires the wpi firmware module 324 325device bxe # Broadcom NetXtreme II BCM5771X/BCM578XX 10GbE 326device ed # NE[12]000, SMC Ultra, 3c503, DS8390 cards 327options ED_3C503 328options ED_HPP 329options ED_SIC 330device ipw # Intel 2100 wireless NICs. 331device iwi # Intel 2200BG/2225BG/2915ABG wireless NICs. 332device iwn # Intel 4965/1000/5000/6000 wireless NICs. 333device ixl # Intel 700 Series Physical Function 334device iavf # Intel Adaptive Virtual Function 335device mthca # Mellanox HCA InfiniBand 336device mlx4 # Shared code module between IB and Ethernet 337device mlx4ib # Mellanox ConnectX HCA InfiniBand 338device mlx4en # Mellanox ConnectX HCA Ethernet 339device nfe # nVidia nForce MCP on-board Ethernet 340device sfxge # Solarflare SFC9000 10Gb Ethernet 341device vmx # VMware VMXNET3 Ethernet 342device wpi # Intel 3945ABG wireless NICs. 343 344# IEEE 802.11 adapter firmware modules 345 346# Intel PRO/Wireless 2100 firmware: 347# ipwfw: BSS/IBSS/monitor mode firmware 348# ipwbssfw: BSS mode firmware 349# ipwibssfw: IBSS mode firmware 350# ipwmonitorfw: Monitor mode firmware 351# Intel PRO/Wireless 2200BG/2225BG/2915ABG firmware: 352# iwifw: BSS/IBSS/monitor mode firmware 353# iwibssfw: BSS mode firmware 354# iwiibssfw: IBSS mode firmware 355# iwimonitorfw: Monitor mode firmware 356# Intel Wireless WiFi Link 4965/1000/5000/6000 series firmware: 357# iwnfw: Single module to support all devices 358# iwn1000fw: Specific module for the 1000 only 359# iwn105fw: Specific module for the 105 only 360# iwn135fw: Specific module for the 135 only 361# iwn2000fw: Specific module for the 2000 only 362# iwn2030fw: Specific module for the 2030 only 363# iwn4965fw: Specific module for the 4965 only 364# iwn5000fw: Specific module for the 5000 only 365# iwn5150fw: Specific module for the 5150 only 366# iwn6000fw: Specific module for the 6000 only 367# iwn6000g2afw: Specific module for the 6000g2a only 368# iwn6000g2bfw: Specific module for the 6000g2b only 369# iwn6050fw: Specific module for the 6050 only 370# wpifw: Intel 3945ABG Wireless LAN Controller firmware 371 372device iwifw 373device iwibssfw 374device iwiibssfw 375device iwimonitorfw 376device ipwfw 377device ipwbssfw 378device ipwibssfw 379device ipwmonitorfw 380device iwnfw 381device iwn1000fw 382device iwn105fw 383device iwn135fw 384device iwn2000fw 385device iwn2030fw 386device iwn4965fw 387device iwn5000fw 388device iwn5150fw 389device iwn6000fw 390device iwn6000g2afw 391device iwn6000g2bfw 392device iwn6050fw 393device wpifw 394 395# 396# Non-Transparent Bridge (NTB) drivers 397# 398device if_ntb # Virtual NTB network interface 399device ntb_transport # NTB packet transport driver 400device ntb # NTB hardware interface 401device ntb_hw_intel # Intel NTB hardware driver 402device ntb_hw_plx # PLX NTB hardware driver 403 404# 405#XXX this stores pointers in a 32bit field that is defined by the hardware 406#device pst 407 408# 409# Areca 11xx and 12xx series of SATA II RAID controllers. 410# CAM is required. 411# 412device arcmsr # Areca SATA II RAID 413 414# 415# Microsemi smartpqi controllers. 416# These controllers have a SCSI-like interface, and require the 417# CAM infrastructure. 418# 419device smartpqi 420 421# 422# 3ware 9000 series PATA/SATA RAID controller driver and options. 423# The driver is implemented as a SIM, and so, needs the CAM infrastructure. 424# 425options TWA_DEBUG # 0-10; 10 prints the most messages. 426device twa # 3ware 9000 series PATA/SATA RAID 427 428# 429# Adaptec FSA RAID controllers, including integrated DELL controllers, 430# the Dell PERC 2/QC and the HP NetRAID-4M 431device aac 432device aacp # SCSI Passthrough interface (optional, CAM required) 433 434# 435# Adaptec by PMC RAID controllers, Series 6/7/8 and upcoming families 436device aacraid # Container interface, CAM required 437 438# 439# Highpoint RocketRAID 27xx. 440device hpt27xx 441 442# 443# Highpoint RocketRAID 182x. 444device hptmv 445 446# 447# Highpoint DC7280 and R750. 448device hptnr 449 450# 451# Highpoint RocketRAID. Supports RR172x, RR222x, RR2240, RR232x, RR2340, 452# RR2210, RR174x, RR2522, RR231x, RR230x. 453device hptrr 454 455# 456# Highpoint RocketRaid 3xxx series SATA RAID 457device hptiop 458 459# 460# IBM (now Adaptec) ServeRAID controllers 461device ips 462 463# 464# Intel integrated Memory Controller (iMC) SMBus controller 465# Sandybridge-Xeon, Ivybridge-Xeon, Haswell-Xeon, Broadwell-Xeon 466device imcsmb 467 468# 469# Intel C600 (Patsburg) integrated SAS controller 470device isci 471options ISCI_LOGGING # enable debugging in isci HAL 472 473# 474# NVM Express (NVMe) support 475device nvme # base NVMe driver 476device nvd # expose NVMe namespaces as disks, depends on nvme 477 478# 479# PMC-Sierra SAS/SATA controller 480device pmspcv 481 482# 483# SafeNet crypto driver: can be moved to the MI NOTES as soon as 484# it's tested on a big-endian machine 485# 486device safe # SafeNet 1141 487options SAFE_DEBUG # enable debugging support: hw.safe.debug 488options SAFE_RNDTEST # enable rndtest support 489 490# 491# VirtIO support 492# 493# The virtio entry provides a generic bus for use by the device drivers. 494# It must be combined with an interface that communicates with the host. 495# Multiple such interfaces are defined by the VirtIO specification. FreeBSD 496# only has support for PCI. Therefore, virtio_pci must be statically 497# compiled in or loaded as a module for the device drivers to function. 498# 499device virtio # Generic VirtIO bus (required) 500device virtio_pci # VirtIO PCI Interface 501device vtnet # VirtIO Ethernet device 502device virtio_blk # VirtIO Block device 503device virtio_scsi # VirtIO SCSI device 504device virtio_balloon # VirtIO Memory Balloon device 505device virtio_random # VirtIO Entropy device 506device virtio_console # VirtIO Console device 507 508# Microsoft Hyper-V enhancement support 509device hyperv # HyperV drivers 510 511# Xen HVM Guest Optimizations 512options XENHVM # Xen HVM kernel infrastructure 513device xenpci # Xen HVM Hypervisor services driver 514 515##################################################################### 516 517# 518# Miscellaneous hardware: 519# 520# ipmi: Intelligent Platform Management Interface 521# pbio: Parallel (8255 PPI) basic I/O (mode 0) port (e.g. Advantech PCL-724) 522# smbios: DMI/SMBIOS entry point 523# vpd: Vital Product Data kernel interface 524# asmc: Apple System Management Controller 525# si: Specialix International SI/XIO or SX intelligent serial card 526# tpm: Trusted Platform Module 527 528# Notes on the Specialix SI/XIO driver: 529# The host card is memory, not IO mapped. 530# The Rev 1 host cards use a 64K chunk, on a 32K boundary. 531# The Rev 2 host cards use a 32K chunk, on a 32K boundary. 532# The cards can use an IRQ of 11, 12 or 15. 533 534device ipmi 535device pbio 536hint.pbio.0.at="isa" 537hint.pbio.0.port="0x360" 538device smbios 539device vpd 540device asmc 541device tpm 542device padlock_rng # VIA Padlock RNG 543device rdrand_rng # Intel Bull Mountain RNG 544device aesni # AES-NI OpenCrypto module 545device ioat # Intel I/OAT DMA engine 546 547# 548# Laptop/Notebook options: 549# 550 551 552# 553# I2C Bus 554# 555 556# 557# Hardware watchdog timers: 558# 559# ichwd: Intel ICH watchdog timer 560# amdsbwd: AMD SB7xx watchdog timer 561# viawd: VIA south bridge watchdog timer 562# wbwd: Winbond watchdog timer 563# 564device ichwd 565device amdsbwd 566device viawd 567device wbwd 568 569# 570# Temperature sensors: 571# 572# coretemp: on-die sensor on Intel Core and newer CPUs 573# amdtemp: on-die sensor on AMD K8/K10/K11 CPUs 574# 575device coretemp 576device amdtemp 577 578# 579# CPU control pseudo-device. Provides access to MSRs, CPUID info and 580# microcode update feature. 581# 582device cpuctl 583 584# 585# System Management Bus (SMB) 586# 587options ENABLE_ALART # Control alarm on Intel intpm driver 588 589# 590# AMD System Management Network (SMN) 591# 592device amdsmn 593 594# 595# Number of initial kernel page table pages used for early bootstrap. 596# This number should include enough pages to map the kernel and any 597# modules or other data loaded with the kernel by the loader. Each 598# page table page maps 2MB. 599# 600options NKPT=31 601 602# EFI Runtime Services support 603options EFIRT 604 605 606##################################################################### 607# ABI Emulation 608 609#XXX keep these here for now and reactivate when support for emulating 610#XXX these 32 bit binaries is added. 611 612# Enable 32-bit runtime support for FreeBSD/i386 binaries. 613options COMPAT_FREEBSD32 614 615# Emulate spx device for client side of SVR3 local X interface 616#XXX#options SPX_HACK 617 618# Enable (32-bit) a.out binary support 619options COMPAT_AOUT 620 621# Enable 32-bit runtime support for CloudABI binaries. 622options COMPAT_CLOUDABI32 623 624# Enable 64-bit runtime support for CloudABI binaries. 625options COMPAT_CLOUDABI64 626 627# Enable Linux ABI emulation 628#XXX#options COMPAT_LINUX 629 630# Enable 32-bit Linux ABI emulation (requires COMPAT_FREEBSD32). 631options COMPAT_LINUX32 632 633# Enable the linux-like proc filesystem support (requires COMPAT_LINUX32 634# and PSEUDOFS) 635options LINPROCFS 636 637#Enable the linux-like sys filesystem support (requires COMPAT_LINUX32 638# and PSEUDOFS) 639options LINSYSFS 640 641##################################################################### 642# ZFS support 643 644options ZFS 645 646##################################################################### 647# VM OPTIONS 648 649# KSTACK_PAGES is the number of memory pages to assign to the kernel 650# stack of each thread. 651 652options KSTACK_PAGES=5 653 654# Enable detailed accounting by the PV entry allocator. 655 656options PV_STATS 657 658##################################################################### 659 660# More undocumented options for linting. 661# Note that documenting these are not considered an affront. 662 663options FB_INSTALL_CDEV # install a CDEV entry in /dev 664 665options KBDIO_DEBUG=2 666options KBD_MAXRETRY=4 667options KBD_MAXWAIT=6 668options KBD_RESETDELAY=201 669 670options PSM_DEBUG=1 671 672options TIMER_FREQ=((14318182+6)/12) 673 674options VM_KMEM_SIZE 675options VM_KMEM_SIZE_MAX 676options VM_KMEM_SIZE_SCALE 677 678# Enable NDIS binary driver support 679options NDISAPI 680device ndis 681