options revision 79100
1# $FreeBSD: head/sys/conf/options 79100 2001-07-02 17:48:59Z mjacob $ 2# 3# On the handling of kernel options 4# 5# All kernel options should be listed in LINT, with suitable 6# descriptions. Negative options (options that make some code not 7# compile) should be commented out; LINT should compile as much code 8# as possible. Try to structure option-using code so that a single 9# option only switch code on, or only switch code off, to make it 10# possible to have a full compile-test. If necessary, you can check 11# for COMPILING_LINT to get maximum code coverage. 12# 13# All new options shall also be listed in either "conf/options" or 14# "<machine>/conf/options.<machine>". Options that affect a single 15# source-file <xxx>.[c|s] should be directed into "opt_<xxx>.h", while 16# options that affect multiple files should either go in 17# "opt_global.h" if this is a kernel-wide option (used just about 18# everywhere), or in "opt_<option-name-in-lower-case>.h" if it affect 19# only some files. Note that the effect of listing only an option 20# without a header-file-name in conf/options (and cousins) is that the 21# last convention is followed. 22# 23# This handling scheme is not yet fully implemented. 24# 25# 26# Format of this file: 27# Option name filename 28# 29# If filename is missing, the default is 30# opt_<name-of-option-in-lower-case>.h 31 32# Adaptec Array Controller driver options 33AAC_COMPAT_LINUX opt_aac.h # Enable the linux ioctl interface 34 35AAC_DEBUG opt_aac.h # Debugging levels: 36 # 0 - quiet, only emit warnings 37 # 1 - noisy, emit major function 38 # points and things done 39 # 2 - extremely noisy, emit trace 40 # items in loops, etc. 41 42# Adaptec aic7xxx SCSI controller options 43AHC_ALLOW_MEMIO opt_aic7xxx.h # Allow PCI devices to use memory 44 # mapped I/O 45 46AHC_TMODE_ENABLE opt_aic7xxx.h # Bitmap of units to enable 47 # targetmode operations. 48 49AHC_DUMP_EEPROM opt_aic7xxx.h # Dump the contents of our 50 # configuration prom. 51 52AHC_DEBUG_SEQUENCER opt_aic7xxx.h # Enable diagnostic sequencer code 53 54ADW_ALLOW_MEMIO opt_adw.h # Allow PCI devices to use memory 55 # mapped I/O 56 57# Miscellaneous options. 58BLEED 59COMPAT_43 opt_compat.h 60COMPAT_SUNOS opt_compat.h 61COMPILING_LINT opt_global.h 62CY_PCI_FASTINTR 63DDB 64DDB_UNATTENDED opt_ddb.h 65GDB_REMOTE_CHAT opt_ddb.h 66NODEVFS opt_devfs.h 67HW_WDOG 68KTRACE 69LIBICONV 70MD_ROOT opt_md.h 71MD_ROOT_SIZE opt_md.h 72NTIMECOUNTER opt_ntp.h 73NSWAPDEV opt_swap.h 74PPS_SYNC opt_ntp.h 75QUOTA 76SPX_HACK 77SUIDDIR opt_suiddir.h 78SYSVMSG opt_sysvipc.h 79SYSVSEM opt_sysvipc.h 80SYSVSHM opt_sysvipc.h 81SHMALL opt_sysvipc.h 82SHMMAX opt_sysvipc.h 83SHMMAXPGS opt_sysvipc.h 84SHMMIN opt_sysvipc.h 85SHMMNI opt_sysvipc.h 86SHMSEG opt_sysvipc.h 87SEMMAP opt_sysvipc.h 88SEMMNI opt_sysvipc.h 89SEMMNS opt_sysvipc.h 90SEMMNU opt_sysvipc.h 91SEMMSL opt_sysvipc.h 92SEMOPM opt_sysvipc.h 93SEMUME opt_sysvipc.h 94MSGMNB opt_sysvipc.h 95MSGMNI opt_sysvipc.h 96MSGSEG opt_sysvipc.h 97MSGSSZ opt_sysvipc.h 98MSGTQL opt_sysvipc.h 99UCONSOLE 100VFS_AIO 101 102# POSIX kernel options 103P1003_1B opt_posix.h 104_KPOSIX_PRIORITY_SCHEDULING opt_posix.h 105_KPOSIX_VERSION opt_posix.h 106 107# TrustedBSD and POSIX.1e Kernel Options 108CAPABILITIES opt_cap.h 109 110# Do we want the config file compiled into the kernel? 111INCLUDE_CONFIG_FILE opt_config.h 112 113# Options for static file systems. These should only be used at config 114# time, since the corresponding lkms cannot work if there are any static 115# dependencies. Unusability is enforced by hiding the defines for the 116# options in a never-included header. 117CD9660 opt_dontuse.h 118CODA opt_dontuse.h 119EXT2FS opt_dontuse.h 120FDESCFS opt_dontuse.h 121FFS opt_dontuse.h 122IFS opt_dontuse.h 123LINPROCFS opt_dontuse.h 124MSDOSFS opt_dontuse.h 125NULLFS opt_dontuse.h 126NWFS opt_dontuse.h 127PORTALFS opt_dontuse.h 128PROCFS opt_dontuse.h 129PSEUDOFS opt_dontuse.h 130UMAPFS opt_dontuse.h 131NTFS opt_dontuse.h 132HPFS opt_dontuse.h 133UNIONFS opt_dontuse.h 134 135# These static filesystems has one slightly bogus static dependency in 136# sys/i386/i386/autoconf.c. If any of these filesystems are 137# statically compiled into the kernel, code for mounting them as root 138# filesystems will be enabled - but look below. 139NFS 140 141# If you are following the conditions in the copyright, 142# you can enable soft-updates which will speed up a lot of thigs 143# and make the system safer from crashes at the same time. 144# otherwise a STUB module will be compiled in. 145SOFTUPDATES opt_ffs.h 146 147# Enabling this option turns on support for Access Control Lists in UFS, 148# which can be used to support high security configurations. Depends on 149# UFS_EXTATTR. 150UFS_ACL opt_ufs.h 151 152# Enabling this option turns on support for extended attributes in UFS-based 153# file systems, which can be used to support high security configurations 154# as well as new file system features. 155UFS_EXTATTR opt_ufs.h 156UFS_EXTATTR_AUTOSTART opt_ufs.h 157 158# The above static dependencies are planned removed, with a 159# <filesystem>_ROOT option to control if it usable as root. This list 160# allows these options to be present in config files already (though 161# they won't make any difference yet). 162NFS_ROOT opt_nfsroot.h 163 164# Options used only in param.c. 165HZ opt_param.h 166MAXFILES opt_param.h 167MAXUSERS opt_param.h 168NBUF opt_param.h 169NMBCLUSTERS opt_param.h 170NSFBUFS opt_param.h 171 172# Generic SCSI options. 173CAM_MAX_HIGHPOWER opt_cam.h 174CAMDEBUG opt_cam.h 175CAM_DEBUG_DELAY opt_cam.h 176CAM_DEBUG_BUS opt_cam.h 177CAM_DEBUG_TARGET opt_cam.h 178CAM_DEBUG_LUN opt_cam.h 179CAM_DEBUG_FLAGS opt_cam.h 180CAM_NEW_TRAN_CODE opt_cam.h 181SCSI_DELAY opt_scsi.h 182SCSI_NO_SENSE_STRINGS opt_scsi.h 183SCSI_NO_OP_STRINGS opt_scsi.h 184 185 186 187# Options used only in cam/scsi/scsi_cd.c 188CHANGER_MIN_BUSY_SECONDS opt_cd.h 189CHANGER_MAX_BUSY_SECONDS opt_cd.h 190 191# Options used only in cam/scsi/scsi_sa.c. 192SA_IO_TIMEOUT opt_sa.h 193SA_SPACE_TIMEOUT opt_sa.h 194SA_REWIND_TIMEOUT opt_sa.h 195SA_ERASE_TIMEOUT opt_sa.h 196SA_1FM_AT_EOD opt_sa.h 197 198# Options used only in cam/scsi/scsi_pt.c 199SCSI_PT_DEFAULT_TIMEOUT opt_pt.h 200 201# Options used only in cam/scsi/scsi_ses.c 202SES_ENABLE_PASSTHROUGH opt_ses.h 203 204# Options used in dev/sym/ (Symbios SCSI driver). 205SYM_SETUP_LP_PROBE_MAP opt_sym.h #-Low Priority Probe Map (bits) 206 # Allows the ncr to take precedence 207 # 1 (1<<0) -> 810a, 860 208 # 2 (1<<1) -> 825a, 875, 885, 895 209 # 4 (1<<2) -> 895a, 896, 1510d 210SYM_SETUP_SCSI_DIFF opt_sym.h #-HVD support for 825a, 875, 885 211 # disabled:0 (default), enabled:1 212SYM_SETUP_PCI_PARITY opt_sym.h #-PCI parity checking 213 # disabled:0, enabled:1 (default) 214SYM_SETUP_MAX_LUN opt_sym.h #-Number of LUNs supported 215 # default:8, range:[1..64] 216 217# Options used only in pci/ncr.c 218SCSI_NCR_DEBUG opt_ncr.h 219SCSI_NCR_MAX_SYNC opt_ncr.h 220SCSI_NCR_MAX_WIDE opt_ncr.h 221SCSI_NCR_MYADDR opt_ncr.h 222 223# Options used only in pci/isp_pci.c 224ISP_TARGET_MODE opt_isp.h 225 226# Options used in the 'ata' ATA/ATAPI driver 227ACD_DEBUG opt_ata.h 228AST_DEBUG opt_ata.h 229ATAPI_DEBUG opt_ata.h 230ATA_DEBUG opt_ata.h 231ATA_STATIC_ID opt_ata.h 232DEV_ATADISK opt_ata.h 233DEV_ATAPICD opt_ata.h 234DEV_ATAPIST opt_ata.h 235DEV_ATAPIFD opt_ata.h 236 237# Resource limits. 238DFLDSIZ opt_rlimit.h 239MAXDSIZ opt_rlimit.h 240 241# Net stuff. 242ACCEPT_FILTER_DATA 243ACCEPT_FILTER_HTTP 244BOOTP opt_bootp.h 245BOOTP_COMPAT opt_bootp.h 246BOOTP_NFSROOT opt_bootp.h 247BOOTP_NFSV3 opt_bootp.h 248BOOTP_WIRED_TO opt_bootp.h 249BRIDGE opt_bdg.h 250ETHER_II opt_ef.h 251ETHER_8023 opt_ef.h 252ETHER_8022 opt_ef.h 253ETHER_SNAP opt_ef.h 254MROUTING opt_mrouting.h 255INET opt_inet.h 256SOMAXCONN opt_inet.h 257INET6 opt_inet6.h 258IPSEC opt_ipsec.h 259IPSEC_ESP opt_ipsec.h 260IPSEC_DEBUG opt_ipsec.h 261IPDIVERT 262DUMMYNET opt_ipdn.h 263IPFILTER opt_ipfilter.h 264IPFILTER_LOG opt_ipfilter.h 265IPFILTER_DEFAULT_BLOCK opt_ipfilter.h 266PFIL_HOOKS opt_pfil_hooks.h 267IPFIREWALL opt_ipfw.h 268IPFIREWALL_VERBOSE opt_ipfw.h 269IPFIREWALL_VERBOSE_LIMIT opt_ipfw.h 270IPFIREWALL_DEFAULT_TO_ACCEPT opt_ipfw.h 271IPFIREWALL_FORWARD opt_ipfw.h 272IPV6FIREWALL opt_ip6fw.h 273IPV6FIREWALL_VERBOSE opt_ip6fw.h 274IPV6FIREWALL_VERBOSE_LIMIT opt_ip6fw.h 275IPV6FIREWALL_DEFAULT_TO_ACCEPT opt_ip6fw.h 276IPSTEALTH 277IPX opt_ipx.h 278IPXIP opt_ipx.h 279IPTUNNEL opt_ipx.h 280LIBMCHAIN 281NCP opt_ncp.h 282NETATALK opt_atalk.h 283PPP_BSDCOMP opt_ppp.h 284PPP_DEFLATE opt_ppp.h 285PPP_FILTER opt_ppp.h 286RANDOM_IP_ID 287SLIP_IFF_OPTS opt_slip.h 288TCPDEBUG 289TCP_DROP_SYNFIN opt_tcp_input.h 290XBONEHACK 291 292# Netgraph(4). Use option NETGRAPH to enable the base netgraph code. 293# Each netgraph node type can be either be compiled into the kernel 294# or loaded dynamically. To get the former, include the corresponding 295# option below. Each type has its own man page, e.g. ng_async(4). 296NETGRAPH 297NETGRAPH_ASYNC opt_netgraph.h 298NETGRAPH_BPF opt_netgraph.h 299NETGRAPH_BRIDGE opt_netgraph.h 300NETGRAPH_CISCO opt_netgraph.h 301NETGRAPH_ECHO opt_netgraph.h 302NETGRAPH_ETHER opt_netgraph.h 303NETGRAPH_FRAME_RELAY opt_netgraph.h 304NETGRAPH_HOLE opt_netgraph.h 305NETGRAPH_IFACE opt_netgraph.h 306NETGRAPH_KSOCKET opt_netgraph.h 307NETGRAPH_LMI opt_netgraph.h 308# MPPC compression requires proprietary files (not included) 309NETGRAPH_MPPC_COMPRESSION opt_netgraph.h 310NETGRAPH_MPPC_ENCRYPTION opt_netgraph.h 311NETGRAPH_ONE2MANY opt_netgraph.h 312NETGRAPH_PPP opt_netgraph.h 313NETGRAPH_PPPOE opt_netgraph.h 314NETGRAPH_PPTPGRE opt_netgraph.h 315NETGRAPH_RFC1490 opt_netgraph.h 316NETGRAPH_SOCKET opt_netgraph.h 317NETGRAPH_TEE opt_netgraph.h 318NETGRAPH_TTY opt_netgraph.h 319NETGRAPH_UI opt_netgraph.h 320NETGRAPH_VJC opt_netgraph.h 321 322# ATM (HARP version) 323ATM_CORE opt_atm.h 324ATM_IP opt_atm.h 325ATM_SIGPVC opt_atm.h 326ATM_SPANS opt_atm.h 327ATM_UNI opt_atm.h 328 329# XXX Conflict: # of devices vs network protocol (Native ATM). 330# This makes "atm.h" unusable. 331NATM opt_natm.h 332 333DPT_ALLOW_MEMIO opt_dpt.h # Allow PCI devices to use memory 334 # mapped I/O 335# DPT driver debug flags 336DPT_MEASURE_PERFORMANCE opt_dpt.h 337DPT_HANDLE_TIMEOUTS opt_dpt.h 338DPT_TIMEOUT_FACTOR opt_dpt.h 339DPT_LOST_IRQ opt_dpt.h 340DPT_RESET_HBA opt_dpt.h 341 342# Adaptec ASR and DPT V/VI controller options 343ASR_MEASURE_PERFORMANCE opt_asr.h 344 345# Misc debug flags. Most of these should probably be replaced with 346# 'DEBUG', and then let people recompile just the interesting modules 347# with 'make CC="cc -DDEBUG"'. 348CLUSTERDEBUG opt_debug_cluster.h 349DEBUG_1284 opt_ppb_1284.h 350VP0_DEBUG opt_vpo.h 351LPT_DEBUG opt_lpt.h 352PLIP_DEBUG opt_plip.h 353LOCKF_DEBUG opt_debug_lockf.h 354LOUTB opt_debug_outb.h 355NPX_DEBUG opt_debug_npx.h 356NETATALKDEBUG opt_atalk.h 357SI_DEBUG opt_debug_si.h 358 359# Fb options 360FB_DEBUG opt_fb.h 361FB_INSTALL_CDEV opt_fb.h 362 363# ppbus related options 364PERIPH_1284 opt_ppb_1284.h 365DONTPROBE_1284 opt_ppb_1284.h 366 367# smbus related options 368ENABLE_ALART opt_intpm.h 369 370# These cause changes all over the kernel 371BLKDEV_IOSIZE opt_global.h 372DEBUG opt_global.h 373DEBUG_LOCKS opt_global.h 374DEBUG_VFS_LOCKS opt_global.h 375DIAGNOSTIC opt_global.h 376ENABLE_VFS_IOOPT opt_global.h 377INVARIANT_SUPPORT opt_global.h 378INVARIANTS opt_global.h 379REGRESSION opt_global.h 380SIMPLELOCK_DEBUG opt_global.h 381VFS_BIO_DEBUG opt_global.h 382 383# These are VM related options 384VM_KMEM_SIZE opt_vm.h 385VM_KMEM_SIZE_SCALE opt_vm.h 386VM_KMEM_SIZE_MAX opt_vm.h 387NO_SWAPPING opt_vm.h 388PQ_NOOPT opt_vmpage.h 389PQ_NORMALCACHE opt_vmpage.h 390PQ_MEDIUMCACHE opt_vmpage.h 391PQ_LARGECACHE opt_vmpage.h 392PQ_HUGECACHE opt_vmpage.h 393PQ_CACHESIZE opt_vmpage.h 394 395# Standard SMP options 396SMP opt_global.h 397 398# sys/netkey 399KEY 400 401# Size of the kernel message buffer 402MSGBUF_SIZE opt_msgbuf.h 403 404# PCI related options 405PCI_QUIET opt_pci.h 406 407# NFS options 408NFS_MINATTRTIMO opt_nfs.h 409NFS_MAXATTRTIMO opt_nfs.h 410NFS_MINDIRATTRTIMO opt_nfs.h 411NFS_MAXDIRATTRTIMO opt_nfs.h 412NFS_GATHERDELAY opt_nfs.h 413NFS_UIDHASHSIZ opt_nfs.h 414NFS_WDELAYHASHSIZ opt_nfs.h 415NFS_MUIDHASHSIZ opt_nfs.h 416NFS_NOSERVER opt_nfs.h 417NFS_DEBUG opt_nfs.h 418 419# For the Bt848/Bt848A/Bt849/Bt878/Bt879 driver 420OVERRIDE_CARD opt_bktr.h 421OVERRIDE_TUNER opt_bktr.h 422OVERRIDE_DBX opt_bktr.h 423OVERRIDE_MSP opt_bktr.h 424BROOKTREE_SYSTEM_DEFAULT opt_bktr.h 425BROOKTREE_ALLOC_PAGES opt_bktr.h 426BKTR_OVERRIDE_CARD opt_bktr.h 427BKTR_OVERRIDE_TUNER opt_bktr.h 428BKTR_OVERRIDE_DBX opt_bktr.h 429BKTR_OVERRIDE_MSP opt_bktr.h 430BKTR_SYSTEM_DEFAULT opt_bktr.h 431BKTR_ALLOC_PAGES opt_bktr.h 432BKTR_USE_PLL opt_bktr.h 433BKTR_GPIO_ACCESS opt_bktr.h 434BKTR_NO_MSP_RESET opt_bktr.h 435BKTR_430_FX_MODE opt_bktr.h 436BKTR_SIS_VIA_MODE opt_bktr.h 437 438# meteor opt_meteor.h 439METEOR_ALLOC_PAGES opt_meteor.h 440METEOR_TEST_VIDEO opt_meteor.h 441METEOR_SYSTEM_DEFAULT opt_meteor.h 442METEOR_DEALLOC_PAGES opt_meteor.h 443METEOR_DEALLOC_ABOVE opt_meteor.h 444 445# Various mi ISA bus flags 446COM_ESP opt_sio.h 447COM_MULTIPORT opt_sio.h 448BREAK_TO_DEBUGGER opt_comconsole.h 449ALT_BREAK_TO_DEBUGGER opt_comconsole.h 450DEV_ISA opt_isa.h 451 452# Include tweaks for running under the SimOS machine simulator. 453SIMOS opt_simos.h 454 455# options for bus/device framework 456BUS_DEBUG opt_bus.h 457DEVICE_SYSCTLS opt_bus.h 458 459# options for USB support 460UHCI_DEBUG opt_usb.h 461OHCI_DEBUG opt_usb.h 462USB_DEBUG opt_usb.h 463UGEN_DEBUG opt_usb.h 464UHID_DEBUG opt_usb.h 465UHUB_DEBUG opt_usb.h 466UKBD_DEBUG opt_usb.h 467ULPT_DEBUG opt_usb.h 468UMASS_DEBUG opt_usb.h 469UMS_DEBUG opt_usb.h 470URIO_DEBUG opt_usb.h 471UKBD_DFLT_KEYMAP opt_ukbd.h 472 473# Vinum options 474VINUMDEBUG opt_vinum.h 475 476# Embedded system options 477INIT_PATH opt_init_path.h 478 479ROOTDEVNAME opt_rootdevname.h 480 481FDC_DEBUG opt_fdc.h 482PCFCLOCK_VERBOSE opt_pcfclock.h 483PCFCLOCK_MAX_RETRIES opt_pcfclock.h 484TDFX_LINUX opt_tdfx.h 485 486KTR opt_global.h 487KTR_MASK opt_ktr.h 488KTR_CPUMASK opt_ktr.h 489KTR_COMPILE opt_global.h 490KTR_ENTRIES opt_global.h 491KTR_EXTEND opt_global.h 492KTR_VERBOSE opt_ktr.h 493MUTEX_DEBUG opt_global.h 494CV_DEBUG opt_global.h 495WITNESS opt_global.h 496WITNESS_DDB opt_witness.h 497WITNESS_SKIPSPIN opt_witness.h 498 499# options for ACPI support 500ACPI_DEBUG opt_acpi.h 501AML_DEBUG opt_acpi.h 502ACPI_NO_ENABLE_ON_BOOT opt_acpi.h 503 504# options for DEVFS, see sys/fs/devfs/devfs.h 505NDEVFSINO opt_devfs.h 506NDEVFSOVERFLOW opt_devfs.h 507 508# various 'device presence' options. 509DEV_MCA opt_mca.h 510DEV_BPF opt_bpf.h 511