options revision 89383
1# $FreeBSD: head/sys/conf/options 89383 2002-01-15 06:46:59Z imp $ 2# 3# On the handling of kernel options 4# 5# All kernel options should be listed in NOTES, with suitable 6# descriptions. Negative options (options that make some code not 7# compile) should be commented out; LINT (generated from NOTES) should 8# compile as much code as possible. Try to structure option-using 9# code so that a single option only switch code on, or only switch 10# code off, to make it possible to have a full compile-test. If 11# necessary, you can check for COMPILING_LINT to get maximum code 12# coverage. 13# 14# All new options shall also be listed in either "conf/options" or 15# "conf/options.<machine>". Options that affect a single source-file 16# <xxx>.[c|s] should be directed into "opt_<xxx>.h", while options 17# that affect multiple files should either go in "opt_global.h" if 18# this is a kernel-wide option (used just about everywhere), or in 19# "opt_<option-name-in-lower-case>.h" if it affect only some files. 20# Note that the effect of listing only an option without a 21# header-file-name in conf/options (and cousins) is that the last 22# convention is followed. 23# 24# This handling scheme is not yet fully implemented. 25# 26# 27# Format of this file: 28# Option name filename 29# 30# If filename is missing, the default is 31# opt_<name-of-option-in-lower-case>.h 32 33# Adaptec Array Controller driver options 34AAC_COMPAT_LINUX opt_aac.h # Enable the linux ioctl interface 35 36AAC_DEBUG opt_aac.h # Debugging levels: 37 # 0 - quiet, only emit warnings 38 # 1 - noisy, emit major function 39 # points and things done 40 # 2 - extremely noisy, emit trace 41 # items in loops, etc. 42 43# Adaptec aic7xxx SCSI controller options 44AHC_ALLOW_MEMIO opt_aic7xxx.h # Allow PCI devices to use memory 45 # mapped I/O 46 47AHC_TMODE_ENABLE opt_aic7xxx.h # Bitmap of units to enable 48 # targetmode operations. 49 50AHC_DUMP_EEPROM opt_aic7xxx.h # Dump the contents of our 51 # configuration prom. 52 53AHC_DEBUG_SEQUENCER opt_aic7xxx.h # Enable diagnostic sequencer code 54 55ADW_ALLOW_MEMIO opt_adw.h # Allow PCI devices to use memory 56 # mapped I/O 57 58# Miscellaneous options. 59BLEED 60COMPAT_43 opt_compat.h 61COMPAT_SUNOS opt_compat.h 62COMPILING_LINT opt_global.h 63CY_PCI_FASTINTR 64DDB 65DDB_UNATTENDED opt_ddb.h 66GDB_REMOTE_CHAT opt_ddb.h 67NODEVFS opt_devfs.h 68HW_WDOG 69KTRACE 70LIBICONV 71MD_ROOT opt_md.h 72MD_ROOT_SIZE opt_md.h 73NTIMECOUNTER opt_ntp.h 74NSWAPDEV opt_swap.h 75PPS_SYNC opt_ntp.h 76QUOTA 77SPX_HACK 78SUIDDIR opt_suiddir.h 79SYSVMSG opt_sysvipc.h 80SYSVSEM opt_sysvipc.h 81SYSVSHM opt_sysvipc.h 82SHMALL opt_sysvipc.h 83SHMMAX opt_sysvipc.h 84SHMMAXPGS opt_sysvipc.h 85SHMMIN opt_sysvipc.h 86SHMMNI opt_sysvipc.h 87SHMSEG opt_sysvipc.h 88SEMMAP opt_sysvipc.h 89SEMMNI opt_sysvipc.h 90SEMMNS opt_sysvipc.h 91SEMMNU opt_sysvipc.h 92SEMMSL opt_sysvipc.h 93SEMOPM opt_sysvipc.h 94SEMUME opt_sysvipc.h 95MSGMNB opt_sysvipc.h 96MSGMNI opt_sysvipc.h 97MSGSEG opt_sysvipc.h 98MSGSSZ opt_sysvipc.h 99MSGTQL opt_sysvipc.h 100UCONSOLE 101VFS_AIO 102 103# POSIX kernel options 104P1003_1B opt_posix.h 105_KPOSIX_PRIORITY_SCHEDULING opt_posix.h 106_KPOSIX_VERSION opt_posix.h 107 108# TrustedBSD and POSIX.1e Kernel Options 109CAPABILITIES opt_cap.h 110 111# Do we want the config file compiled into the kernel? 112INCLUDE_CONFIG_FILE opt_config.h 113 114# Options for static file systems. These should only be used at config 115# time, since the corresponding lkms cannot work if there are any static 116# dependencies. Unusability is enforced by hiding the defines for the 117# options in a never-included header. 118CD9660 opt_dontuse.h 119CODA opt_dontuse.h 120EXT2FS opt_dontuse.h 121FDESCFS opt_dontuse.h 122LINPROCFS opt_dontuse.h 123MSDOSFS opt_dontuse.h 124NULLFS opt_dontuse.h 125NWFS opt_dontuse.h 126PORTALFS opt_dontuse.h 127PROCFS opt_dontuse.h 128PSEUDOFS opt_dontuse.h 129UMAPFS opt_dontuse.h 130NTFS opt_dontuse.h 131HPFS opt_dontuse.h 132UNIONFS opt_dontuse.h 133 134# Broken - ffs_snapshot() dependency from ufs_lookup() :-( 135FFS opt_ffs_broken_fixme.h 136IFS opt_ffs_broken_fixme.h 137 138# These static filesystems has one slightly bogus static dependency in 139# sys/i386/i386/autoconf.c. If any of these filesystems are 140# statically compiled into the kernel, code for mounting them as root 141# filesystems will be enabled - but look below. 142NFSCLIENT opt_nfs.h 143NFSSERVER opt_nfs.h 144 145# If you are following the conditions in the copyright, 146# you can enable soft-updates which will speed up a lot of thigs 147# and make the system safer from crashes at the same time. 148# otherwise a STUB module will be compiled in. 149SOFTUPDATES opt_ffs.h 150 151# Enabling this option turns on support for Access Control Lists in UFS, 152# which can be used to support high security configurations. Depends on 153# UFS_EXTATTR. 154UFS_ACL opt_ufs.h 155 156# Enabling this option turns on support for extended attributes in UFS-based 157# file systems, which can be used to support high security configurations 158# as well as new file system features. 159UFS_EXTATTR opt_ufs.h 160UFS_EXTATTR_AUTOSTART opt_ufs.h 161 162# Enable fast hash lookups for large directories on UFS-based filesystems. 163UFS_DIRHASH opt_ufs.h 164 165# The above static dependencies are planned removed, with a 166# <filesystem>_ROOT option to control if it usable as root. This list 167# allows these options to be present in config files already (though 168# they won't make any difference yet). 169NFS_ROOT opt_nfsroot.h 170 171# Options used only in subr_param.c. 172HZ opt_param.h 173MAXFILES opt_param.h 174NBUF opt_param.h 175NMBCLUSTERS opt_param.h 176NSFBUFS opt_param.h 177VM_BCACHE_SIZE_MAX opt_param.h 178VM_SWZONE_SIZE_MAX opt_param.h 179MAXUSERS 180DFLDSIZ opt_param.h 181MAXDSIZ opt_param.h 182MAXSSIZ opt_param.h 183 184# Generic SCSI options. 185CAM_MAX_HIGHPOWER opt_cam.h 186CAMDEBUG opt_cam.h 187CAM_DEBUG_DELAY opt_cam.h 188CAM_DEBUG_BUS opt_cam.h 189CAM_DEBUG_TARGET opt_cam.h 190CAM_DEBUG_LUN opt_cam.h 191CAM_DEBUG_FLAGS opt_cam.h 192CAM_NEW_TRAN_CODE opt_cam.h 193SCSI_DELAY opt_scsi.h 194SCSI_NO_SENSE_STRINGS opt_scsi.h 195SCSI_NO_OP_STRINGS opt_scsi.h 196 197 198 199# Options used only in cam/scsi/scsi_cd.c 200CHANGER_MIN_BUSY_SECONDS opt_cd.h 201CHANGER_MAX_BUSY_SECONDS opt_cd.h 202 203# Options used only in cam/scsi/scsi_sa.c. 204SA_IO_TIMEOUT opt_sa.h 205SA_SPACE_TIMEOUT opt_sa.h 206SA_REWIND_TIMEOUT opt_sa.h 207SA_ERASE_TIMEOUT opt_sa.h 208SA_1FM_AT_EOD opt_sa.h 209 210# Options used only in cam/scsi/scsi_pt.c 211SCSI_PT_DEFAULT_TIMEOUT opt_pt.h 212 213# Options used only in cam/scsi/scsi_ses.c 214SES_ENABLE_PASSTHROUGH opt_ses.h 215 216# Options used in dev/sym/ (Symbios SCSI driver). 217SYM_SETUP_LP_PROBE_MAP opt_sym.h #-Low Priority Probe Map (bits) 218 # Allows the ncr to take precedence 219 # 1 (1<<0) -> 810a, 860 220 # 2 (1<<1) -> 825a, 875, 885, 895 221 # 4 (1<<2) -> 895a, 896, 1510d 222SYM_SETUP_SCSI_DIFF opt_sym.h #-HVD support for 825a, 875, 885 223 # disabled:0 (default), enabled:1 224SYM_SETUP_PCI_PARITY opt_sym.h #-PCI parity checking 225 # disabled:0, enabled:1 (default) 226SYM_SETUP_MAX_LUN opt_sym.h #-Number of LUNs supported 227 # default:8, range:[1..64] 228 229# Options used only in pci/ncr.c 230SCSI_NCR_DEBUG opt_ncr.h 231SCSI_NCR_MAX_SYNC opt_ncr.h 232SCSI_NCR_MAX_WIDE opt_ncr.h 233SCSI_NCR_MYADDR opt_ncr.h 234 235# Options used only in pci/isp_pci.c 236ISP_TARGET_MODE opt_isp.h 237 238# Options used in the 'ata' ATA/ATAPI driver 239ACD_DEBUG opt_ata.h 240AST_DEBUG opt_ata.h 241ATAPI_DEBUG opt_ata.h 242ATA_DEBUG opt_ata.h 243ATA_STATIC_ID opt_ata.h 244DEV_ATADISK opt_ata.h 245DEV_ATAPICD opt_ata.h 246DEV_ATAPIST opt_ata.h 247DEV_ATAPIFD opt_ata.h 248 249# Net stuff. 250ACCEPT_FILTER_DATA 251ACCEPT_FILTER_HTTP 252BOOTP opt_bootp.h 253BOOTP_COMPAT opt_bootp.h 254BOOTP_NFSROOT opt_bootp.h 255BOOTP_NFSV3 opt_bootp.h 256BOOTP_WIRED_TO opt_bootp.h 257BRIDGE opt_bdg.h 258ETHER_II opt_ef.h 259ETHER_8023 opt_ef.h 260ETHER_8022 opt_ef.h 261ETHER_SNAP opt_ef.h 262MROUTING opt_mrouting.h 263INET opt_inet.h 264SOMAXCONN opt_inet.h 265INET6 opt_inet6.h 266IPSEC opt_ipsec.h 267IPSEC_ESP opt_ipsec.h 268IPSEC_DEBUG opt_ipsec.h 269IPDIVERT 270DUMMYNET opt_ipdn.h 271IPFILTER opt_ipfilter.h 272IPFILTER_LOG opt_ipfilter.h 273IPFILTER_DEFAULT_BLOCK opt_ipfilter.h 274PFIL_HOOKS opt_pfil_hooks.h 275IPFIREWALL opt_ipfw.h 276IPFIREWALL_VERBOSE opt_ipfw.h 277IPFIREWALL_VERBOSE_LIMIT opt_ipfw.h 278IPFIREWALL_DEFAULT_TO_ACCEPT opt_ipfw.h 279IPFIREWALL_FORWARD opt_ipfw.h 280IPV6FIREWALL opt_ip6fw.h 281IPV6FIREWALL_VERBOSE opt_ip6fw.h 282IPV6FIREWALL_VERBOSE_LIMIT opt_ip6fw.h 283IPV6FIREWALL_DEFAULT_TO_ACCEPT opt_ip6fw.h 284IPSTEALTH 285IPX opt_ipx.h 286IPXIP opt_ipx.h 287IPTUNNEL opt_ipx.h 288LIBMCHAIN 289NCP opt_ncp.h 290NETATALK opt_atalk.h 291PPP_BSDCOMP opt_ppp.h 292PPP_DEFLATE opt_ppp.h 293PPP_FILTER opt_ppp.h 294RANDOM_IP_ID 295SLIP_IFF_OPTS opt_slip.h 296TCPDEBUG 297TCP_DROP_SYNFIN opt_tcp_input.h 298XBONEHACK 299 300# Netgraph(4). Use option NETGRAPH to enable the base netgraph code. 301# Each netgraph node type can be either be compiled into the kernel 302# or loaded dynamically. To get the former, include the corresponding 303# option below. Each type has its own man page, e.g. ng_async(4). 304NETGRAPH 305NETGRAPH_ASYNC opt_netgraph.h 306NETGRAPH_BPF opt_netgraph.h 307NETGRAPH_BRIDGE opt_netgraph.h 308NETGRAPH_CISCO opt_netgraph.h 309NETGRAPH_ECHO opt_netgraph.h 310NETGRAPH_ETHER opt_netgraph.h 311NETGRAPH_FRAME_RELAY opt_netgraph.h 312NETGRAPH_GIF opt_netgraph.h 313NETGRAPH_GIF_DEMUX opt_netgraph.h 314NETGRAPH_HOLE opt_netgraph.h 315NETGRAPH_IFACE opt_netgraph.h 316NETGRAPH_IP_INPUT opt_netgraph.h 317NETGRAPH_KSOCKET opt_netgraph.h 318NETGRAPH_LMI opt_netgraph.h 319# MPPC compression requires proprietary files (not included) 320NETGRAPH_MPPC_COMPRESSION opt_netgraph.h 321NETGRAPH_MPPC_ENCRYPTION opt_netgraph.h 322NETGRAPH_ONE2MANY opt_netgraph.h 323NETGRAPH_PPP opt_netgraph.h 324NETGRAPH_PPPOE opt_netgraph.h 325NETGRAPH_PPTPGRE opt_netgraph.h 326NETGRAPH_RFC1490 opt_netgraph.h 327NETGRAPH_SOCKET opt_netgraph.h 328NETGRAPH_SPLIT opt_netgraph.h 329NETGRAPH_TEE opt_netgraph.h 330NETGRAPH_TTY opt_netgraph.h 331NETGRAPH_UI opt_netgraph.h 332NETGRAPH_VJC opt_netgraph.h 333 334# ATM (HARP version) 335ATM_CORE opt_atm.h 336ATM_IP opt_atm.h 337ATM_SIGPVC opt_atm.h 338ATM_SPANS opt_atm.h 339ATM_UNI opt_atm.h 340 341# XXX Conflict: # of devices vs network protocol (Native ATM). 342# This makes "atm.h" unusable. 343NATM opt_natm.h 344 345DPT_ALLOW_MEMIO opt_dpt.h # Allow PCI devices to use memory 346 # mapped I/O 347# DPT driver debug flags 348DPT_MEASURE_PERFORMANCE opt_dpt.h 349DPT_HANDLE_TIMEOUTS opt_dpt.h 350DPT_TIMEOUT_FACTOR opt_dpt.h 351DPT_LOST_IRQ opt_dpt.h 352DPT_RESET_HBA opt_dpt.h 353 354# Adaptec ASR and DPT V/VI controller options 355ASR_MEASURE_PERFORMANCE opt_asr.h 356 357# Misc debug flags. Most of these should probably be replaced with 358# 'DEBUG', and then let people recompile just the interesting modules 359# with 'make CC="cc -DDEBUG"'. 360CLUSTERDEBUG opt_debug_cluster.h 361DEBUG_1284 opt_ppb_1284.h 362VP0_DEBUG opt_vpo.h 363LPT_DEBUG opt_lpt.h 364PLIP_DEBUG opt_plip.h 365LOCKF_DEBUG opt_debug_lockf.h 366LOUTB opt_debug_outb.h 367NPX_DEBUG opt_debug_npx.h 368NETATALKDEBUG opt_atalk.h 369SI_DEBUG opt_debug_si.h 370 371# Fb options 372FB_DEBUG opt_fb.h 373FB_INSTALL_CDEV opt_fb.h 374 375# ppbus related options 376PERIPH_1284 opt_ppb_1284.h 377DONTPROBE_1284 opt_ppb_1284.h 378 379# smbus related options 380ENABLE_ALART opt_intpm.h 381 382# These cause changes all over the kernel 383BLKDEV_IOSIZE opt_global.h 384DEBUG opt_global.h 385DEBUG_LOCKS opt_global.h 386DEBUG_VFS_LOCKS opt_global.h 387DIAGNOSTIC opt_global.h 388ENABLE_VFS_IOOPT opt_global.h 389INVARIANT_SUPPORT opt_global.h 390INVARIANTS opt_global.h 391REGRESSION opt_global.h 392RESTARTABLE_PANICS opt_global.h 393SIMPLELOCK_DEBUG opt_global.h 394VFS_BIO_DEBUG opt_global.h 395 396# These are VM related options 397VM_KMEM_SIZE opt_vm.h 398VM_KMEM_SIZE_SCALE opt_vm.h 399VM_KMEM_SIZE_MAX opt_vm.h 400NO_SWAPPING opt_vm.h 401PQ_NOOPT opt_vmpage.h 402PQ_NORMALCACHE opt_vmpage.h 403PQ_MEDIUMCACHE opt_vmpage.h 404PQ_LARGECACHE opt_vmpage.h 405PQ_HUGECACHE opt_vmpage.h 406PQ_CACHESIZE opt_vmpage.h 407 408# Standard SMP options 409SMP opt_global.h 410 411# sys/netkey 412KEY 413 414# Size of the kernel message buffer 415MSGBUF_SIZE opt_msgbuf.h 416 417# PCI related options 418PCI_QUIET opt_pci.h 419PCI_ENABLE_IO_MODES opt_pci.h 420PCI_ALLOW_UNSUPPORTED_IO_RANGE opt_pci.h 421 422# NFS options 423NFS_MINATTRTIMO opt_nfs.h 424NFS_MAXATTRTIMO opt_nfs.h 425NFS_MINDIRATTRTIMO opt_nfs.h 426NFS_MAXDIRATTRTIMO opt_nfs.h 427NFS_GATHERDELAY opt_nfs.h 428NFS_UIDHASHSIZ opt_nfs.h 429NFS_WDELAYHASHSIZ opt_nfs.h 430NFS_MUIDHASHSIZ opt_nfs.h 431NFS_DEBUG opt_nfs.h 432 433# For the Bt848/Bt848A/Bt849/Bt878/Bt879 driver 434OVERRIDE_CARD opt_bktr.h 435OVERRIDE_TUNER opt_bktr.h 436OVERRIDE_DBX opt_bktr.h 437OVERRIDE_MSP opt_bktr.h 438BROOKTREE_SYSTEM_DEFAULT opt_bktr.h 439BROOKTREE_ALLOC_PAGES opt_bktr.h 440BKTR_OVERRIDE_CARD opt_bktr.h 441BKTR_OVERRIDE_TUNER opt_bktr.h 442BKTR_OVERRIDE_DBX opt_bktr.h 443BKTR_OVERRIDE_MSP opt_bktr.h 444BKTR_SYSTEM_DEFAULT opt_bktr.h 445BKTR_ALLOC_PAGES opt_bktr.h 446BKTR_USE_PLL opt_bktr.h 447BKTR_GPIO_ACCESS opt_bktr.h 448BKTR_NO_MSP_RESET opt_bktr.h 449BKTR_430_FX_MODE opt_bktr.h 450BKTR_SIS_VIA_MODE opt_bktr.h 451 452# meteor opt_meteor.h 453METEOR_ALLOC_PAGES opt_meteor.h 454METEOR_TEST_VIDEO opt_meteor.h 455METEOR_SYSTEM_DEFAULT opt_meteor.h 456METEOR_DEALLOC_PAGES opt_meteor.h 457METEOR_DEALLOC_ABOVE opt_meteor.h 458 459# Various mi ISA bus flags 460COM_ESP opt_sio.h 461COM_MULTIPORT opt_sio.h 462BREAK_TO_DEBUGGER opt_comconsole.h 463ALT_BREAK_TO_DEBUGGER opt_comconsole.h 464DEV_ISA opt_isa.h 465 466# Include tweaks for running under the SimOS machine simulator. 467SIMOS opt_simos.h 468 469# options for bus/device framework 470BUS_DEBUG opt_bus.h 471DEVICE_SYSCTLS opt_bus.h 472 473# options for USB support 474UHCI_DEBUG opt_usb.h 475OHCI_DEBUG opt_usb.h 476USB_DEBUG opt_usb.h 477UGEN_DEBUG opt_usb.h 478UHID_DEBUG opt_usb.h 479UHUB_DEBUG opt_usb.h 480UKBD_DEBUG opt_usb.h 481ULPT_DEBUG opt_usb.h 482UMASS_DEBUG opt_usb.h 483UMS_DEBUG opt_usb.h 484URIO_DEBUG opt_usb.h 485UKBD_DFLT_KEYMAP opt_ukbd.h 486 487# Vinum options 488VINUMDEBUG opt_vinum.h 489 490# Embedded system options 491INIT_PATH opt_init_path.h 492 493ROOTDEVNAME opt_rootdevname.h 494 495FDC_DEBUG opt_fdc.h 496PCFCLOCK_VERBOSE opt_pcfclock.h 497PCFCLOCK_MAX_RETRIES opt_pcfclock.h 498TDFX_LINUX opt_tdfx.h 499 500KTR opt_global.h 501KTR_MASK opt_ktr.h 502KTR_CPUMASK opt_ktr.h 503KTR_COMPILE opt_global.h 504KTR_ENTRIES opt_global.h 505KTR_EXTEND opt_global.h 506KTR_VERBOSE opt_ktr.h 507MUTEX_DEBUG opt_global.h 508CV_DEBUG opt_global.h 509WITNESS opt_global.h 510WITNESS_DDB opt_witness.h 511WITNESS_SKIPSPIN opt_witness.h 512 513# options for ACPI support 514ACPI_DEBUG opt_acpi.h 515AML_DEBUG opt_acpi.h 516ACPI_NO_ENABLE_ON_BOOT opt_acpi.h 517ACPI_NO_SEMAPHORES opt_acpi.h 518ACPI_MAX_THREADS opt_acpi.h 519 520# options for DEVFS, see sys/fs/devfs/devfs.h 521NDEVFSINO opt_devfs.h 522NDEVFSOVERFLOW opt_devfs.h 523 524# various 'device presence' options. 525DEV_MCA opt_mca.h 526DEV_BPF opt_bpf.h 527 528# ed driver 529ED_NO_MIIBUS opt_ed.h 530