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# ixl: Intel XL710 40Gbe PCIE Ethernet 317# ixlv: Intel XL710 40Gbe VF PCIE Ethernet 318# mlx4ib: Mellanox ConnectX HCA InfiniBand 319# mlx4en: Mellanox ConnectX HCA Ethernet 320# mthca: Mellanox HCA InfiniBand 321# nfe: nVidia nForce MCP on-board Ethernet Networking (BSD open source) 322# sfxge: Solarflare SFC9000 family 10Gb Ethernet adapters 323# vmx: VMware VMXNET3 Ethernet (BSD open source) 324# wpi: Intel 3945ABG Wireless LAN controller 325# Requires the wpi firmware module 326 327device bxe # Broadcom NetXtreme II BCM5771X/BCM578XX 10GbE 328device ed # NE[12]000, SMC Ultra, 3c503, DS8390 cards 329options ED_3C503 330options ED_HPP 331options ED_SIC 332device ipw # Intel 2100 wireless NICs. 333device iwi # Intel 2200BG/2225BG/2915ABG wireless NICs. 334device iwn # Intel 4965/1000/5000/6000 wireless NICs. 335device ixl # Intel XL710 40Gbe PCIE Ethernet 336options IXL_IW # Enable iWARP Client Interface in ixl(4) 337device ixlv # Intel XL710 40Gbe VF PCIE Ethernet 338device mlx4 # Shared code module between IB and Ethernet 339device mlx4ib # Mellanox ConnectX HCA InfiniBand 340device mlx4en # Mellanox ConnectX HCA Ethernet 341device mthca # Mellanox HCA InfiniBand 342device nfe # nVidia nForce MCP on-board Ethernet 343device sfxge # Solarflare SFC9000 10Gb Ethernet 344device vmx # VMware VMXNET3 Ethernet 345device wpi # Intel 3945ABG wireless NICs. 346 347# IEEE 802.11 adapter firmware modules 348 349# Intel PRO/Wireless 2100 firmware: 350# ipwfw: BSS/IBSS/monitor mode firmware 351# ipwbssfw: BSS mode firmware 352# ipwibssfw: IBSS mode firmware 353# ipwmonitorfw: Monitor mode firmware 354# Intel PRO/Wireless 2200BG/2225BG/2915ABG firmware: 355# iwifw: BSS/IBSS/monitor mode firmware 356# iwibssfw: BSS mode firmware 357# iwiibssfw: IBSS mode firmware 358# iwimonitorfw: Monitor mode firmware 359# Intel Wireless WiFi Link 4965/1000/5000/6000 series firmware: 360# iwnfw: Single module to support all devices 361# iwn1000fw: Specific module for the 1000 only 362# iwn105fw: Specific module for the 105 only 363# iwn135fw: Specific module for the 135 only 364# iwn2000fw: Specific module for the 2000 only 365# iwn2030fw: Specific module for the 2030 only 366# iwn4965fw: Specific module for the 4965 only 367# iwn5000fw: Specific module for the 5000 only 368# iwn5150fw: Specific module for the 5150 only 369# iwn6000fw: Specific module for the 6000 only 370# iwn6000g2afw: Specific module for the 6000g2a only 371# iwn6000g2bfw: Specific module for the 6000g2b only 372# iwn6050fw: Specific module for the 6050 only 373# wpifw: Intel 3945ABG Wireless LAN Controller firmware 374 375device iwifw 376device iwibssfw 377device iwiibssfw 378device iwimonitorfw 379device ipwfw 380device ipwbssfw 381device ipwibssfw 382device ipwmonitorfw 383device iwnfw 384device iwn1000fw 385device iwn105fw 386device iwn135fw 387device iwn2000fw 388device iwn2030fw 389device iwn4965fw 390device iwn5000fw 391device iwn5150fw 392device iwn6000fw 393device iwn6000g2afw 394device iwn6000g2bfw 395device iwn6050fw 396device wpifw 397 398# Intel Non-Transparent Bridge (NTB) hardware 399device ntb_hw # Hardware Abstraction Layer for the NTB 400device if_ntb # Simulated ethernet device using the NTB 401 402# 403#XXX this stores pointers in a 32bit field that is defined by the hardware 404#device pst 405 406# 407# Areca 11xx and 12xx series of SATA II RAID controllers. 408# CAM is required. 409# 410device arcmsr # Areca SATA II RAID 411 412# 413# 3ware 9000 series PATA/SATA RAID controller driver and options. 414# The driver is implemented as a SIM, and so, needs the CAM infrastructure. 415# 416options TWA_DEBUG # 0-10; 10 prints the most messages. 417device twa # 3ware 9000 series PATA/SATA RAID 418 419# 420# SCSI host adapters: 421# 422# ncv: NCR 53C500 based SCSI host adapters. 423# nsp: Workbit Ninja SCSI-3 based PC Card SCSI host adapters. 424# stg: TMC 18C30, 18C50 based SCSI host adapters. 425 426device ncv 427device nsp 428device stg 429 430# 431# Adaptec FSA RAID controllers, including integrated DELL controllers, 432# the Dell PERC 2/QC and the HP NetRAID-4M 433device aac 434device aacp # SCSI Passthrough interface (optional, CAM required) 435 436# 437# Adaptec by PMC RAID controllers, Series 6/7/8 and upcoming families 438device aacraid # Container interface, CAM required 439 440# 441# Highpoint RocketRAID 27xx. 442device hpt27xx 443 444# 445# Highpoint RocketRAID 182x. 446device hptmv 447 448# 449# Highpoint DC7280 and R750. 450device hptnr 451 452# 453# Highpoint RocketRAID. Supports RR172x, RR222x, RR2240, RR232x, RR2340, 454# RR2210, RR174x, RR2522, RR231x, RR230x. 455device hptrr 456 457# 458# Highpoint RocketRaid 3xxx series SATA RAID 459device hptiop 460 461# 462# IBM (now Adaptec) ServeRAID controllers 463device ips 464 465# 466# Intel C600 (Patsburg) integrated SAS controller 467device isci 468options ISCI_LOGGING # enable debugging in isci HAL 469 470# 471# NVM Express (NVMe) support 472device nvme # base NVMe driver 473device nvd # expose NVMe namespaces as disks, depends on nvme 474 475# 476# PMC-Sierra SAS/SATA controller 477device pmspcv 478 479# 480# SafeNet crypto driver: can be moved to the MI NOTES as soon as 481# it's tested on a big-endian machine 482# 483device safe # SafeNet 1141 484options SAFE_DEBUG # enable debugging support: hw.safe.debug 485options SAFE_RNDTEST # enable rndtest support 486 487# 488# VirtIO support 489# 490# The virtio entry provides a generic bus for use by the device drivers. 491# It must be combined with an interface that communicates with the host. 492# Multiple such interfaces are defined by the VirtIO specification. FreeBSD 493# only has support for PCI. Therefore, virtio_pci must be statically 494# compiled in or loaded as a module for the device drivers to function. 495# 496device virtio # Generic VirtIO bus (required) 497device virtio_pci # VirtIO PCI Interface 498device vtnet # VirtIO Ethernet device 499device virtio_blk # VirtIO Block device 500device virtio_scsi # VirtIO SCSI device 501device virtio_balloon # VirtIO Memory Balloon device 502device virtio_random # VirtIO Entropy device 503device virtio_console # VirtIO Console device 504 505# Microsoft Hyper-V enhancement support 506device hyperv # HyperV drivers 507 508# Xen HVM Guest Optimizations 509options XENHVM # Xen HVM kernel infrastructure 510device xenpci # Xen HVM Hypervisor services driver 511 512##################################################################### 513 514# 515# Miscellaneous hardware: 516# 517# ipmi: Intelligent Platform Management Interface 518# pbio: Parallel (8255 PPI) basic I/O (mode 0) port (e.g. Advantech PCL-724) 519# smbios: DMI/SMBIOS entry point 520# vpd: Vital Product Data kernel interface 521# asmc: Apple System Management Controller 522# si: Specialix International SI/XIO or SX intelligent serial card 523# tpm: Trusted Platform Module 524 525# Notes on the Specialix SI/XIO driver: 526# The host card is memory, not IO mapped. 527# The Rev 1 host cards use a 64K chunk, on a 32K boundary. 528# The Rev 2 host cards use a 32K chunk, on a 32K boundary. 529# The cards can use an IRQ of 11, 12 or 15. 530 531device ipmi 532device pbio 533hint.pbio.0.at="isa" 534hint.pbio.0.port="0x360" 535device smbios 536device vpd 537device asmc 538device tpm 539device padlock_rng # VIA Padlock RNG 540device rdrand_rng # Intel Bull Mountain RNG 541device aesni # AES-NI OpenCrypto module 542device ioat # Intel I/OAT DMA engine 543 544# 545# Laptop/Notebook options: 546# 547 548 549# 550# I2C Bus 551# 552 553# 554# Hardware watchdog timers: 555# 556# ichwd: Intel ICH watchdog timer 557# amdsbwd: AMD SB7xx watchdog timer 558# viawd: VIA south bridge watchdog timer 559# wbwd: Winbond watchdog timer 560# 561device ichwd 562device amdsbwd 563device viawd 564device wbwd 565 566# 567# Temperature sensors: 568# 569# coretemp: on-die sensor on Intel Core and newer CPUs 570# amdtemp: on-die sensor on AMD K8/K10/K11 CPUs 571# 572device coretemp 573device amdtemp 574 575# 576# CPU control pseudo-device. Provides access to MSRs, CPUID info and 577# microcode update feature. 578# 579device cpuctl 580 581# 582# System Management Bus (SMB) 583# 584options ENABLE_ALART # Control alarm on Intel intpm driver 585 586# 587# Number of initial kernel page table pages used for early bootstrap. 588# This number should include enough pages to map the kernel and any 589# modules or other data loaded with the kernel by the loader. Each 590# page table page maps 2MB. 591# 592options NKPT=31 593 594# EFI Runtime Services support (not functional yet). 595options EFIRT 596 597 598##################################################################### 599# ABI Emulation 600 601#XXX keep these here for now and reactivate when support for emulating 602#XXX these 32 bit binaries is added. 603 604# Enable 32-bit runtime support for FreeBSD/i386 binaries. 605options COMPAT_FREEBSD32 606 607# Enable iBCS2 runtime support for SCO and ISC binaries 608#XXX#options IBCS2 609 610# Emulate spx device for client side of SVR3 local X interface 611#XXX#options SPX_HACK 612 613# Enable 32-bit runtime support for CloudABI binaries. 614options COMPAT_CLOUDABI32 615 616# Enable 64-bit runtime support for CloudABI binaries. 617options COMPAT_CLOUDABI64 618 619# Enable Linux ABI emulation 620#XXX#options COMPAT_LINUX 621 622# Enable 32-bit Linux ABI emulation (requires COMPAT_43 and COMPAT_FREEBSD32) 623options COMPAT_LINUX32 624 625# Enable the linux-like proc filesystem support (requires COMPAT_LINUX32 626# and PSEUDOFS) 627options LINPROCFS 628 629#Enable the linux-like sys filesystem support (requires COMPAT_LINUX32 630# and PSEUDOFS) 631options LINSYSFS 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