#
# GENERIC -- Generic kernel configuration file for FreeBSD/i386
#
# For more information on this file, please read the handbook section on
# Kernel Configuration Files:
#
#
#
# The handbook is also available locally in /usr/share/doc/handbook
# if you've installed the doc distribution, otherwise always see the
# FreeBSD World Wide Web server () for the
# latest information.
#
# An exhaustive list of options and more detailed explanations of the
# device lines is also present in the ../../conf/NOTES and NOTES files.
# If you are in doubt as to the purpose or necessity of a line, check first
# in NOTES.
#
# $FreeBSD: src/sys/i386/conf/GENERIC,v 1.429.2.13 2006/10/09 18:41:36 simon Exp $
machine i386
#cpu I486_CPU
#cpu I586_CPU
cpu I686_CPU
ident NEOLKC
maxusers 0
# To statically compile in device wiring instead of /boot/device.hints
#hints "GENERIC.hints" # Default places to look for devices.
makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols
options SCHED_4BSD # 4BSD scheduler
options PREEMPTION # Enable kernel thread preemption
options INET # InterNETworking
#options INET6 # IPv6 communications protocols
options FFS # Berkeley Fast Filesystem
options SOFTUPDATES # Enable FFS soft updates support
options UFS_ACL # Support for access control lists
options UFS_DIRHASH # Improve performance on big directories
options MD_ROOT # MD is a potential root device
#options NFSCLIENT # Network Filesystem Client
#options NFSSERVER # Network Filesystem Server
#options NFS_ROOT # NFS usable as /, requires NFSCLIENT
options MSDOSFS # MSDOS Filesystem
options CD9660 # ISO 9660 Filesystem
options PROCFS # Process filesystem (requires PSEUDOFS)
options PSEUDOFS # Pseudo-filesystem framework
options GEOM_GPT # GUID Partition Tables.
options COMPAT_43 # Compatible with BSD 4.3 [KEEP THIS!]
options COMPAT_FREEBSD4 # Compatible with FreeBSD4
options COMPAT_FREEBSD5 # Compatible with FreeBSD5
options SCSI_DELAY=2000 # Delay (in ms) before probing SCSI
options KTRACE # ktrace(1) support
options SYSVSHM # SYSV-style shared memory
options SYSVMSG # SYSV-style message queues
options SYSVSEM # SYSV-style semaphores
options _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time extensions
options KBD_INSTALL_CDEV # install a CDEV entry in /dev
options ADAPTIVE_GIANT # Giant mutex is adaptive.
# User custom option.
options COMPAT_AOUT # Enable i386 a.out binary support
options COMPAT_LINUX # Enable Linux ABI emulation
options LINPROCFS # Enable the linux-like proc filesystem support (requires COMPAT_LINUX and PSEUDOFS)
options DEVICE_POLLING # 可以让dc,fxp和sis设备更平稳地运行，不幸的是它不能和SMP连用
options HZ=1000
options PQ_MEDIUMCACHE # 为256k二级缓存的CPU提供支持
options CPU_SUSP_HLT #打开CPU空闲节能
options CPU_UPGRADE_HW_CACHE
options CPU_WT_ALLOC
options NO_MEMORY_HOLE #以上三项为AMD系列CPU优化
options ZERO_COPY_SOCKETS #这是对4.4BSD设计缺陷的重大改进可以极大的提高网络性能
options TCP_DROP_SYNFIN="YES" #如果要创建互联网服务器，将其值改为NO,丢弃SYN+FIN的TCP包
options PANIC_REBOOT_WAIT_TIME=0 #panic时重启等待时间,0为不等待立即重启.
#options IPFILTER #ipfilter支持
#IPFirewall。我们需要的功能IPFilter都提供，并且更高效
#除非你需要IPFirewall的某些专有功能，否则这部分不必编译
options IPFIREWALL #防火墙
options IPDIVERT #divert sockets
options IPFIREWALL_VERBOSE #允许防火墙日志
options IPFIREWALL_FORWARD #允许透明代理
options IPFIREWALL_VERBOSE_LIMIT=100 #限制日至
options IPFIREWALL_DEFAULT_TO_ACCEPT #默认允许所有IP包
options IPSTEALTH #启动支持秘密转发的代码，这一选项在使防火墙不被traceroute和类似工具发现时很有用
# 静态数据包过滤许可规则(直接放入内核)
options ACCEPT_FILTER_DATA
options ACCEPT_FILTER_HTTP
options VESA #打开终端高分辨率支持并在/etc/rc.conf中加入 allscreens_flags="-g 100x37 VESA_800x600"
options SC_PIXEL_MODE
# The following options will let you change the default colors of syscons. 我在FreeBSD6.2中编译不过去！可能和我make.conf里参数设置有关
#options SC_NORM_ATTR=”(FG_GREEN|BG_BLACK)”
#options SC_NORM_REV_ATTR=”(FG_YELLOW|BG_GREEN)”
#options SC_KERNEL_CONS_ATTR=”(FG_GREEN|BG_BLACK)”
#options SC_KERNEL_CONS_REV_ATTR=”(FG_BLACK|BG_GREEN)”
device apic # I/O APIC 设备将启用使用 I/O APIC 作为中断发送设备的能力。 apic 设备可以被 UP 和 SMP 内核使用，但 SMP 内核必须使用它。 要支持多处理器， 还需要加上 options SMP。
# Bus support.
#device eisa # [我没这个设备]如果您的主机板上有EISA总线，加入这个设置。使用这个选项可以自动扫描并设置所有连接在EISA总线上的设备。
device pci # 主板有PCI总线，就加入这个选项。使用这个选项可以自动扫描PCI卡，并在PCI到ISA之间建立通路。
# Floppy drives
#device fdc # 这是软驱控制器
# ATA and ATAPI devices
device ata # 这个驱动器支持所有ATA和ATAPI设备。您只要在内核中加入device ata选项， 就可以让内核支持现代计算机上的所有PCI ATA/ATAPI设备
device atadisk # ATA disk drives
device ataraid # ATA RAID drives
device atapicd # ATAPI CDROM drives
#device atapifd # ATAPI floppy drives
#device atapist # ATAPI tape drives
options ATA_STATIC_ID # Static device numbering
# SCSI Controllers 我没有SCSI控制器设备所以就都注释掉
#device ahb # EISA AHA1742 family
#device ahc # AHA2940 and onboard AIC7xxx devices
#options AHC_REG_PRETTY_PRINT # Print register bitfields in debug
# output. Adds ~128k to driver.
#device ahd # AHA39320/29320 and onboard AIC79xx devices
#options AHD_REG_PRETTY_PRINT # Print register bitfields in debug
# output. Adds ~215k to driver.
#device amd # AMD 53C974 (Tekram DC-390(T))
#device isp # Qlogic family
#device ispfw # Firmware for QLogic HBAs- normally a module
#device mpt # LSI-Logic MPT-Fusion
#device ncr # NCR/Symbios Logic
#device sym # NCR/Symbios Logic (newer chipsets + those of `ncr')
#device trm # Tekram DC395U/UW/F DC315U adapters
#device adv # Advansys SCSI adapters
#device adw # Advansys wide SCSI adapters
#device aha # Adaptec 154x SCSI adapters
#device aic # Adaptec 15[012]x SCSI adapters, AIC-6[23]60.
#device bt # Buslogic/Mylex MultiMaster SCSI adapters
#device ncv # NCR 53C500
#device nsp # Workbit Ninja SCSI-3
#device stg # TMC 18C30/18C50
# SCSI peripherals 也没有SCSI外围设备,都注释掉
#device scbus # SCSI bus (required for SCSI)
#device ch # SCSI media changers
#device da # Direct Access (disks)
#device sa # Sequential Access (tape etc)
#device cd # CD
#device pass # Passthrough device (direct SCSI access)
#device ses # SCSI Environmental Services (and SAF-TE)
# RAID controllers interfaced to the SCSI subsystem 没有这些设备
#device amr # AMI MegaRAID
#device arcmsr # Areca SATA II RAID
#device asr # DPT SmartRAID V, VI and Adaptec SCSI RAID
#device ciss # Compaq Smart RAID 5*
#device dpt # DPT Smartcache III, IV - See NOTES for options
#device hptmv # Highpoint RocketRAID 182x
#device rr232x # Highpoint RocketRAID 232x
#device iir # Intel Integrated RAID
#device ips # IBM (Adaptec) ServeRAID
#device mly # Mylex AcceleRAID/eXtremeRAID
#device twa # 3ware 9000 series PATA/SATA RAID
# RAID controllers 没有设备
#device aac # Adaptec FSA RAID
#device aacp # SCSI passthrough for aac (requires CAM)
#device ida # Compaq Smart RAID
#device mfi # LSI MegaRAID SAS
#device mlx # Mylex DAC960 family
#device pst # Promise Supertrak SX6000
#device twe # 3ware ATA RAID
# atkbdc0 controls both the keyboard and the PS/2 mouse
device atkbdc # AT keyboard controller 键盘控制器（atkbdc）提供AT键盘输入以及PS/2指针设备的I/O服务。键盘驱动程序（atkbd）与PS/2鼠标驱动程序（psm）需要这个控制器，所以不要删除它。
device atkbd # AT keyboard atkbd驱动程序，与atkbdc控制器一起使用， 提供连接到AT键盘控制器的AT 84键盘与AT加强型键盘的访问服务。
device psm # PS/2 mouse
device kbdmux # keyboard multiplexer 针对键盘多路选择器的基本支持
device vga # VGA video card driver 显卡驱动
device splash # Splash screen and screen saver support 启动时的 splash 画面！屏幕保护程序也需要这一选项
# syscons is the default console driver, resembling an SCO console 默认的控制台驱动程序， 类似 SCO 控制台
device sc
# Enable this for the pcvt (VT220 compatible) console driver
#device vt
#options XSERVER # support for X server on a vt console
#options FAT_CURSOR # start with block cursor
device agp # support several AGP chipsets 如果您的机器使用 AGP 卡， 请把上面一行加入配置。 这将启用 AGP， 以及某些卡上的 AGP GART 支持
# Power management support (see NOTES for more options)高级电源管理支持。 对笔记本有用， 不过在 FreeBSD 5.X 和更高版本中的 GENERIC 里默认禁用。
device apm
# Add suspend/resume support for the i8254. 用于电源管理事件， 例如 APM 和 ACPI 的时钟设备驱动。
device pmtimer
# PCCARD (PCMCIA) support PCMCIA支持。如果您使用膝上型计算机，您需要这个。
# PCMCIA and cardbus bridge support
#device cbb # cardbus (yenta) bridge
#device pccard # PC Card (16-bit) bus
#device cardbus # CardBus (32-bit) bus
# Serial (COM) ports 串口链接
#device sio # 8250, 16[45]50 based serial ports
# Parallel port
device ppc # ISA-bus并行接口
device ppbus # Parallel port bus (required) 提供并行总线的支持
device lpt # Printer 提供并口打印机的支持。注意: 要使用并口打印机，就必须同时加入上面三行设置。
device plip # TCP/IP over parallel 这是针对并行网络接口的驱动器
device ppi # Parallel port interface device 普通用途的I/O (“geek port”) + IEEE1284 I/O
#device vpo # Requires scbus and da 这是针对Iomega Zip驱动器的。它要求scbus和da的支持。 最好的执行效果是工作在EPP 1.9模式
# If you've got a "dumb" serial or parallel PCI card that is
# supported by the puc(4) glue driver, uncomment the following
# line to enable it (connects to the sio and/or ppc drivers):
#device puc
# PCI Ethernet NICs. 多种PCI网卡驱动器。注释或删除您系统中没有的设备
#device de # DEC/Intel DC21x4x (``Tulip'')
#device em # Intel PRO/1000 adapter Gigabit Ethernet Card
#device ixgb # Intel PRO/10GbE Ethernet Card
#device txp # 3Com 3cR990 (``Typhoon'')
#device vx # 3Com 3c590, 3c595 (``Vortex'')
# PCI Ethernet NICs that use the common MII bus controller code.
# NOTE: Be sure to keep the 'device miibus' line in order to use these NICs!
device miibus # MII bus support MII总线支持对于一些PCI 10/100 Ethernet NIC来说是必需的
#device bce # Broadcom BCM5706/BCM5708 Gigabit Ethernet
#device bfe # Broadcom BCM440x 10/100 Ethernet
#device bge # Broadcom BCM570xx Gigabit Ethernet
#device dc # DEC/Intel 21143 and various workalikes
#device fxp # Intel EtherExpress PRO/100B (82557, 82558)
#device lge # Level 1 LXT1001 gigabit Ethernet
#device nge # NatSemi DP83820 gigabit Ethernet
#device nve # nVidia nForce MCP on-board Ethernet Networking
#device pcn # AMD Am79C97x PCI 10/100(precedence over 'lnc')
#device re # RealTek 8139C+/8169/8169S/8110S
#device rl # RealTek 8129/8139
#device sf # Adaptec AIC-6915 (``Starfire'')
#device sis # Silicon Integrated Systems SiS 900/SiS 7016
#device sk # SysKonnect SK-984x & SK-982x gigabit Ethernet
#device ste # Sundance ST201 (D-Link DFE-550TX)
#device stge # Sundance/Tamarack TC9021 gigabit Ethernet
#device ti # Alteon Networks Tigon I/II gigabit Ethernet
#device tl # Texas Instruments ThunderLAN
#device tx # SMC EtherPower II (83c170 ``EPIC'')
#device vge # VIA VT612x gigabit Ethernet
device vr # VIA Rhine, Rhine II 我的网卡设备
#device wb # Winbond W89C840F
#device xl # 3Com 3c90x (``Boomerang'', ``Cyclone'')
# ISA Ethernet NICs. pccard NICs included. ISA 以太网卡驱动
#device cs # Crystal Semiconductor CS89x0 NIC
# 'device ed' requires 'device miibus'
#device ed # NE[12]000, SMC Ultra, 3c503, DS8390 cards
#device ex # Intel EtherExpress Pro/10 and Pro/10+
#device ep # Etherlink III based cards
#device fe # Fujitsu MB8696x based cards
#device ie # EtherExpress 8/16, 3C507, StarLAN 10 etc.
#device lnc # NE2100, NE32-VL Lance Ethernet cards
#device sn # SMC's 9000 series of Ethernet chips
#device xe # Xircom pccard Ethernet
# Wireless NIC cards 用以支持多种无线网卡
#device wlan # 802.11 support
#device wlan_wep # 802.11 WEP support
#device wlan_ccmp # 802.11 CCMP support
#device wlan_tkip # 802.11 TKIP support
#device an # Aironet 4500/4800 802.11 wireless NICs.
#device ath # Atheros pci/cardbus NIC's
#device ath_hal # Atheros HAL (Hardware Access Layer)
#device ath_rate_sample # SampleRate tx rate control for ath
#device awi # BayStack 660 and others
#device ral # Ralink Technology RT2500 wireless NICs.
#device wi # WaveLAN/Intersil/Symbol 802.11 wireless NICs.
#device wl # Older non 802.11 Wavelan wireless NIC.
# Pseudo devices.
device loop # Network loopback 这是 TCP/IP 的通用回环设备。如果您 telnet 或 FTP 到 localhost (也就是 127.0.0.1) 则将通过这个设备回到本机。 这个设备是 必需的。
device random # Entropy device
device ether # Ethernet support 只有在使用以太网卡时才需要。它包含了通用的以太网协议代码
#device sl # Kernel SLIP 用以提供 SLIP 支持。目前它几乎已经完全被 PPP 取代了，因为后者更容易配置，而且更适合调制解调器之间的连接， 并提供了更强大的功能。
device ppp # Kernel PPP 这一选项用以提供内核级的 PPP 支持，用于拨号连接。 也有以用户模式运行的 PPP 实现，使用 tun 并提供包括按需拨号在内的更为灵活的功能。
device tun # Packet tunnel. 它会被用户模式的 PPP 软件用到。参考本书的 PPP 以了解更多的细节。
device pty # Pseudo-ttys (telnet etc) 这是一个 “pseudo-terminal” 或模拟登入端口。 它用来接收连入的 telnet 以及 rlogin 会话、 xterm， 以及一些其它程序如 Emacs 等。
device md # Memory "disks" 内存盘伪设备
device gif # IPv6 and IPv4 tunneling 它实现了在 IPv4 上的 IPv6 隧道、 IPv6 上的 IPv4 隧道、 IPv4 上的 IPv4 隧道、以及IPv6 上的 IPv6隧道。 gif 设备是 “自动克隆” 的，它会根据需要自动创建设备节点。
device faith # IPv6-to-IPv4 relaying (translation) 这个伪设备能捕捉发给它的数据包，并把它们转发给 IPv4/IPv6 翻译服务程序。
# The `bpf' device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
# Note that 'bpf' is required for DHCP.
device bpf # Berkeley packet filter 这是 Berkeley 包过滤器。这个伪设备允许网络接口被置于混杂模式， 从而，截获广播网 (例如，以太网) 上的每一个数据包。截获的数据报可以保存到磁盘上，也可以使用 tcpdump(1) 程序来分析。
# 注意: bpf(4) 设备也被用于 dhclient(8) 来获取默认路由器(网关)的 IP 地址。如果使用DHCP，就不要注释掉这行
# USB support 支持各类 USB 设备
device uhci # UHCI PCI->USB interface
#device ohci # OHCI PCI->USB interface
device ehci # EHCI PCI->USB interface (USB 2.0)
device usb # USB Bus (required)
#device udbp # USB Double Bulk Pipe devices
#device ugen # Generic
#device uhid # "Human Interface Devices"
#device ukbd # Keyboard
#device ulpt # Printer
#device umass # Disks/Mass storage - Requires scbus and da
#device ums # Mouse
#device ural # Ralink Technology RT2500USB wireless NICs
#device urio # Diamond Rio 500 MP3 player
#device uscanner # Scanners
# USB Ethernet, requires miibus
#device aue # ADMtek USB Ethernet
#device axe # ASIX Electronics USB Ethernet
#device cdce # Generic USB over Ethernet
#device cue # CATC USB Ethernet
#device kue # Kawasaki LSI USB Ethernet
#device rue # RealTek RTL8150 USB Ethernet
# FireWire support 支持各类火线设备
#device firewire # FireWire bus code
#device sbp # SCSI over FireWire (Requires scbus and da)
#device fwe # Ethernet over FireWire (non-standard!)
