# # NOTES -- Lines that can be cut/pasted into kernel and hints configs. # # This file contains machine dependent kernel configuration notes. For # machine independent notes, look in /sys/conf/NOTES. # # $FreeBSD$ # # # This directive is mandatory; it defines the architecture to be # configured for; in this case, the AMD64 family based machines. # machine amd64 # # We want LINT to cover profiling as well. profile 2 ##################################################################### # SMP OPTIONS: # # Notes: # # IPI_PREEMPTION instructs the kernel to preempt threads running on other # CPUS if needed. Relies on the PREEMPTION option # Optional: options IPI_PREEMPTION device atpic # Optional legacy pic support device mptable # Optional MPSPEC mptable support # # Watchdog routines. # options MP_WATCHDOG # # Debugging options. # options KDB_STOP_NMI # Stop CPUS using NMI instead of IPI ##################################################################### # CPU OPTIONS # # You must specify at least one CPU (the one you intend to run on); # deleting the specification for CPUs you don't need to use may make # parts of the system run faster. # cpu HAMMER # aka K8, aka Opteron & Athlon64 # # Options for CPU features. # # # PERFMON causes the driver for Pentium/Pentium Pro performance counters # to be compiled. See perfmon(4) for more information. # #XXX#options PERFMON ##################################################################### # NETWORKING OPTIONS # # DEVICE_POLLING adds support for mixed interrupt-polling handling # of network device drivers, which has significant benefits in terms # of robustness to overloads and responsivity, as well as permitting # accurate scheduling of the CPU time between kernel network processing # and other activities. The drawback is a moderate (up to 1/HZ seconds) # potential increase in response times. # It is strongly recommended to use HZ=1000 or 2000 with DEVICE_POLLING # to achieve smoother behaviour. # Additionally, you can enable/disable polling at runtime with the # sysctl variable kern.polling.enable (defaults off), and select # the CPU fraction reserved to userland with the sysctl variable # kern.polling.user_frac (default 50, range 0..100). # # Not all device drivers support this mode of operation at the time of # this writing. See polling(4) for more details. options DEVICE_POLLING ##################################################################### # CLOCK OPTIONS # The following options are used for debugging clock behavior only, and # should not be used for production systems. # CLK_CALIBRATION_LOOP causes clock calibration to be run in a loop at # startup until the user presses a key. (The i8254 clock is always # calibrated relative to the RTC (mc146818a) and this option causes the # calibration to be repeated.) options CLK_CALIBRATION_LOOP # CLK_USE_I8254_CALIBRATION causes the calibrated frequency of the i8254 # clock to actually be used. options CLK_USE_I8254_CALIBRATION ##################################################################### # MISCELLANEOUS DEVICES AND OPTIONS device gzip #Exec gzipped a.out's. REQUIRES COMPAT_AOUT! ##################################################################### # HARDWARE BUS CONFIGURATION # # ISA bus # device isa # # Options for `isa': # # AUTO_EOI_1 enables the `automatic EOI' feature for the master 8259A # interrupt controller. This saves about 0.7-1.25 usec for each interrupt. # This option breaks suspend/resume on some portables. # # AUTO_EOI_2 enables the `automatic EOI' feature for the slave 8259A # interrupt controller. This saves about 0.7-1.25 usec for each interrupt. # Automatic EOI is documented not to work for for the slave with the # original i8259A, but it works for some clones and some integrated # versions. # # MAXMEM specifies the amount of RAM on the machine; if this is not # specified, FreeBSD will first read the amount of memory from the CMOS # RAM, so the amount of memory will initially be limited to 64MB or 16MB # depending on the BIOS. If the BIOS reports 64MB, a memory probe will # then attempt to detect the installed amount of RAM. If this probe # fails to detect >64MB RAM you will have to use the MAXMEM option. # The amount is in kilobytes, so for a machine with 128MB of RAM, it would # be 131072 (128 * 1024). # # BROKEN_KEYBOARD_RESET disables the use of the keyboard controller to # reset the CPU for reboot. This is needed on some systems with broken # keyboard controllers. options AUTO_EOI_1 #options AUTO_EOI_2 options MAXMEM=(128*1024) #options BROKEN_KEYBOARD_RESET # # PCI bus & PCI options: # device pci # # AGP GART support device agp ##################################################################### # HARDWARE DEVICE CONFIGURATION # # Optional devices: # # 3Dfx Voodoo Graphics, Voodoo II /dev/3dfx CDEV support. This will create # the /dev/3dfx0 device to work with glide implementations. This should get # linked to /dev/3dfx and /dev/voodoo. Note that this is not the same as # the tdfx DRI module from XFree86 and is completely unrelated. # # To enable Linuxulator support, one must also include COMPAT_LINUX in the # config as well, or you will not have the dependencies. The other option # is to load both as modules. device tdfx # Enable 3Dfx Voodoo support #XXX#options TDFX_LINUX # Enable Linuxulator support # # ACPI support using the Intel ACPI Component Architecture reference # implementation. # # ACPI_DEBUG enables the use of the debug.acpi.level and debug.acpi.layer # kernel environment variables to select initial debugging levels for the # Intel ACPICA code. (Note that the Intel code must also have USE_DEBUGGER # defined when it is built). # # ACPI_NO_SEMAPHORES makes the AcpiOs*Semaphore routines a no-op. # # ACPICA_PEDANTIC enables strict checking of AML. Our default is to # relax these checks to allow code generated by the Microsoft compiler # to still execute. # # Note that building ACPI into the kernel is deprecated; the module is # normally loaded automatically by the loader. device acpi options ACPI_DEBUG #!options ACPI_NO_SEMAPHORES #!options ACPICA_PEDANTIC # The cpufreq(4) driver provides support for non-ACPI CPU frequency control device cpufreq # Direct Rendering modules for 3D acceleration. device drm # DRM core module required by DRM drivers device mach64drm # ATI Rage Pro, Rage Mobility P/M, Rage XL device mgadrm # AGP Matrox G200, G400, G450, G550 device r128drm # ATI Rage 128 device radeondrm # ATI Radeon device sisdrm # SiS 300/305, 540, 630 device tdfxdrm # 3dfx Voodoo 3/4/5 and Banshee options DRM_DEBUG # Include debug printfs (slow) # # Network interfaces: # # ath: Atheros a/b/g WiFi adapters (requires ath_hal and wlan) # ed: Western Digital and SMC 80xx; Novell NE1000 and NE2000; 3Com 3C503 # HP PC Lan+, various PC Card devices (refer to etc/defaults/pccard.conf) # (requires miibus) # lnc: Lance/PCnet cards (Isolan, Novell NE2100, NE32-VL, AMD Am7990 and # Am79C960) device ed options ED_3C503 options ED_HPP options ED_SIC device lnc device ath device ath_hal # Atheros HAL (includes binary component) device ath_rate_onoe # Onoe rate control for ath driver #device ath_rate_amrr # AMRR rate control for ath driver #device ath_rate_sample # SampleRate rate control for the ath driver #device wlan # 802.11 layer # #XXX this stores pointers in a 32bit field that is defined by the hardware #device pst # # Areca 11xx and 12xx series of SATA II RAID controllers. # CAM is required. # device arcmsr # Areca SATA II RAID # # 3ware 9000 series PATA/SATA RAID controller driver and options. # The driver is implemented as a SIM, and so, needs the CAM infrastructure. # options TWA_DEBUG # 0-10; 10 prints the most messages. options TWA_FLASH_FIRMWARE # firmware image bundled when defined. device twa # 3ware 9000 series PATA/SATA RAID # # SCSI host adapters: # # ncv: NCR 53C500 based SCSI host adapters. # nsp: Workbit Ninja SCSI-3 based PC Card SCSI host adapters. # stg: TMC 18C30, 18C50 based SCSI host adapters. device ncv device nsp device stg # # Adaptec FSA RAID controllers, including integrated DELL controllers, # the Dell PERC 2/QC and the HP NetRAID-4M device aac device aacp # SCSI Passthrough interface (optional, CAM required) # # Highpoint RocketRAID 182x. This is really just software RAID on a # Marvell SATA chip. #device hptmv # Broken, i386-only binary. # # IBM (now Adaptec) ServeRAID controllers device ips # # SafeNet crypto driver: can be moved to the MI NOTES as soon as # it's tested on a big-endian machine # device safe # SafeNet 1141 options SAFE_DEBUG # enable debugging support: hw.safe.debug options SAFE_RNDTEST # enable rndtest support ##################################################################### # # Miscellaneous hardware: # # smbios: DMI/SMBIOS entry point # vpd: Vital Product Data kernel interface # cy: Cyclades serial driver # digi: Digiboard driver # Notes on the Specialix SI/XIO driver: # The host card is memory, not IO mapped. # The Rev 1 host cards use a 64K chunk, on a 32K boundary. # The Rev 2 host cards use a 32K chunk, on a 32K boundary. # The cards can use an IRQ of 11, 12 or 15. device cy options CY_PCI_FASTINTR # Use with cy_pci unless irq is shared device digi # BIOS & FEP/OS components of device digi. device digi_CX device digi_CX_PCI device digi_EPCX device digi_EPCX_PCI device digi_Xe device digi_Xem device digi_Xr # Parallel (8255 PPI) basic I/O (mode 0) port (e.g. Advantech PCL-724) device pbio hint.pbio.0.at="isa" hint.pbio.0.port="0x360" device smbios device vpd # sx device is i386 and pc98 only at the moment. device sx options SX_DEBUG # HOT1 Xilinx 6200 card (http://www.vcc.com/) device xrpu # # Laptop/Notebook options: # # # I2C Bus # # # Hardware watchdog timers: # # ichwd: Intel ICH watchdog timer # device ichwd #--------------------------------------------------------------------------- # ISDN4BSD # # See /usr/share/examples/isdn/ROADMAP for an introduction to isdn4bsd. # # i4b passive ISDN cards support contains the following hardware drivers: # # isic - Siemens/Infineon ISDN ISAC/HSCX/IPAC chipset driver # iwic - Winbond W6692 PCI bus ISDN S/T interface controller # ifpi - AVM Fritz!Card PCI driver # ifpi2 - AVM Fritz!Card PCI version 2 driver # itjc - Siemens ISAC / TJNet Tiger300/320 chipset # # i4b active ISDN cards support contains the following hardware drivers: # # iavc - AVM B1 PCI, AVM B1 ISA, AVM T1 # # Note that the ``options'' (if given) and ``device'' lines must BOTH # be uncommented to enable support for a given card ! # # In addition to a hardware driver (and probably an option) the mandatory # ISDN protocol stack devices and the mandatory support device must be # enabled as well as one or more devices from the optional devices section. # #--------------------------------------------------------------------------- # isic driver (Siemens/Infineon chipsets) # #XXX#device isic # # PCI bus Cards: # -------------- # # ELSA MicroLink ISDN/PCI (same as ELSA QuickStep 1000pro PCI) options ELSA_QS1PCI # #--------------------------------------------------------------------------- # ifpi2 driver for AVM Fritz!Card PCI version 2 # # AVM Fritz!Card PCI version 2 #XXX#device ifpi2 # #--------------------------------------------------------------------------- # iwic driver for Winbond W6692 chipset # # ASUSCOM P-IN100-ST-D (and other Winbond W6692 based cards) #XXX#device iwic # #--------------------------------------------------------------------------- # itjc driver for Siemens ISAC / TJNet Tiger300/320 chipset # # Traverse Technologies NETjet-S # Teles PCI-TJ #XXX#device itjc # #--------------------------------------------------------------------------- # iavc driver (AVM active cards, needs i4bcapi driver!) # #XXX#device iavc # #--------------------------------------------------------------------------- # ISDN Protocol Stack - mandatory for all hardware drivers # # Q.921 / layer 2 - i4b passive cards D channel handling #XXX#device i4bq921 # # Q.931 / layer 3 - i4b passive cards D channel handling #XXX#device i4bq931 # # layer 4 - i4b common passive and active card handling #XXX#device i4b # #--------------------------------------------------------------------------- # ISDN devices - mandatory for all hardware drivers # # userland driver to do ISDN tracing (for passive cards only) #XXX#device i4btrc #XXX#options NI4BTRC=4 # # userland driver to control the whole thing #XXX#device i4bctl # #--------------------------------------------------------------------------- # ISDN devices - optional # # userland driver for access to raw B channel #XXX#device i4brbch #XXX#options NI4BRBCH=4 # # userland driver for telephony #XXX#device i4btel #XXX#options NI4BTEL=2 # # network driver for IP over raw HDLC ISDN #XXX#device i4bipr #XXX#options NI4BIPR=4 # enable VJ header compression detection for ipr i/f options IPR_VJ # enable logging of the first n IP packets to isdnd (n=32 here) options IPR_LOG=32 # # network driver for sync PPP over ISDN; requires an equivalent # number of sppp device to be configured #XXX#device i4bisppp #XXX#options NI4BISPPP=4 # # B-channel interface to the netgraph subsystem #XXX#device i4bing #XXX#options NI4BING=2 # # CAPI driver needed for active ISDN cards (see iavc driver above) #XXX#device i4bcapi # #--------------------------------------------------------------------------- # # System Management Bus (SMB) # options ENABLE_ALART # Control alarm on Intel intpm driver # # Set the number of PV entries per process. Increasing this can # stop panics related to heavy use of shared memory. However, that can # (combined with large amounts of physical memory) cause panics at # boot time due the kernel running out of VM space. # # If you're tweaking this, you might also want to increase the sysctls # "vm.v_free_min", "vm.v_free_reserved", and "vm.v_free_target". # # The value below is the one more than the default. # options PMAP_SHPGPERPROC=201 ##################################################################### # ABI Emulation #XXX keep these here for now and reactivate when support for emulating #XXX these 32 bit binaries is added. # Enable 32-bit runtime support for FreeBSD/i386 binaries. options COMPAT_IA32 # Enable iBCS2 runtime support for SCO and ISC binaries #XXX#options IBCS2 # Emulate spx device for client side of SVR3 local X interface #XXX#options SPX_HACK # Enable Linux ABI emulation #XXX#options COMPAT_LINUX # Enable 32-bit Linux ABI emulation (requires COMPAT_43 and COMPAT_IA32) options COMPAT_LINUX32 # Enable the linux-like proc filesystem support (requires COMPAT_LINUX32 # and PSEUDOFS) options LINPROCFS # # SysVR4 ABI emulation # # The svr4 ABI emulator can be statically compiled into the kernel or loaded as # a KLD module. # The STREAMS network emulation code can also be compiled statically or as a # module. If loaded as a module, it must be loaded before the svr4 module # (the /usr/sbin/svr4 script does this for you). If compiling statically, # the `streams' device must be configured into any kernel which also # specifies COMPAT_SVR4. It is possible to have a statically-configured # STREAMS device and a dynamically loadable svr4 emulator; the /usr/sbin/svr4 # script understands that it doesn't need to load the `streams' module under # those circumstances. # Caveat: At this time, `options KTRACE' is required for the svr4 emulator # (whether static or dynamic). # #XXX#options COMPAT_SVR4 # build emulator statically #XXX#options DEBUG_SVR4 # enable verbose debugging #XXX#device streams # STREAMS network driver (required for svr4). ##################################################################### # VM OPTIONS # KSTACK_PAGES is the number of memory pages to assign to the kernel # stack of each thread. options KSTACK_PAGES=3 ##################################################################### # More undocumented options for linting. # Note that documenting these are not considered an affront. options FB_INSTALL_CDEV # install a CDEV entry in /dev options KBDIO_DEBUG=2 options KBD_MAXRETRY=4 options KBD_MAXWAIT=6 options KBD_RESETDELAY=201 options PSM_DEBUG=1 options TIMER_FREQ=((14318182+6)/12) options VM_KMEM_SIZE options VM_KMEM_SIZE_MAX options VM_KMEM_SIZE_SCALE # The I/O device device io