options revision 93719
1# $FreeBSD: head/sys/conf/options 93719 2002-04-03 10:56:59Z ru $ 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. 59GEOM opt_geom.h 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 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 121LINPROCFS opt_dontuse.h 122MSDOSFS opt_dontuse.h 123NULLFS opt_dontuse.h 124NWFS opt_dontuse.h 125PORTALFS opt_dontuse.h 126PROCFS opt_dontuse.h 127PSEUDOFS opt_dontuse.h 128UMAPFS opt_dontuse.h 129NTFS opt_dontuse.h 130HPFS opt_dontuse.h 131UNIONFS opt_dontuse.h 132 133# Broken - ffs_snapshot() dependency from ufs_lookup() :-( 134FFS opt_ffs_broken_fixme.h 135IFS opt_ffs_broken_fixme.h 136 137# These static filesystems has one slightly bogus static dependency in 138# sys/i386/i386/autoconf.c. If any of these filesystems are 139# statically compiled into the kernel, code for mounting them as root 140# filesystems will be enabled - but look below. 141NFSCLIENT opt_nfs.h 142NFSSERVER opt_nfs.h 143 144# If you are following the conditions in the copyright, 145# you can enable soft-updates which will speed up a lot of thigs 146# and make the system safer from crashes at the same time. 147# otherwise a STUB module will be compiled in. 148SOFTUPDATES opt_ffs.h 149 150# Enabling this option turns on support for Access Control Lists in UFS, 151# which can be used to support high security configurations. Depends on 152# UFS_EXTATTR. 153UFS_ACL opt_ufs.h 154 155# Enabling this option turns on support for extended attributes in UFS-based 156# file systems, which can be used to support high security configurations 157# as well as new file system features. 158UFS_EXTATTR opt_ufs.h 159UFS_EXTATTR_AUTOSTART opt_ufs.h 160 161# Enable fast hash lookups for large directories on UFS-based filesystems. 162UFS_DIRHASH opt_ufs.h 163 164# The above static dependencies are planned removed, with a 165# <filesystem>_ROOT option to control if it usable as root. This list 166# allows these options to be present in config files already (though 167# they won't make any difference yet). 168NFS_ROOT opt_nfsroot.h 169 170# Options used only in subr_param.c. 171HZ opt_param.h 172MAXFILES opt_param.h 173NBUF opt_param.h 174NMBCLUSTERS opt_param.h 175NSFBUFS opt_param.h 176VM_BCACHE_SIZE_MAX opt_param.h 177VM_SWZONE_SIZE_MAX opt_param.h 178MAXUSERS 179DFLDSIZ opt_param.h 180MAXDSIZ opt_param.h 181MAXSSIZ opt_param.h 182 183# Generic SCSI options. 184CAM_MAX_HIGHPOWER opt_cam.h 185CAMDEBUG opt_cam.h 186CAM_DEBUG_DELAY opt_cam.h 187CAM_DEBUG_BUS opt_cam.h 188CAM_DEBUG_TARGET opt_cam.h 189CAM_DEBUG_LUN opt_cam.h 190CAM_DEBUG_FLAGS opt_cam.h 191CAM_NEW_TRAN_CODE opt_cam.h 192SCSI_DELAY opt_scsi.h 193SCSI_NO_SENSE_STRINGS opt_scsi.h 194SCSI_NO_OP_STRINGS opt_scsi.h 195 196 197 198# Options used only in cam/scsi/scsi_cd.c 199CHANGER_MIN_BUSY_SECONDS opt_cd.h 200CHANGER_MAX_BUSY_SECONDS opt_cd.h 201 202# Options used only in cam/scsi/scsi_sa.c. 203SA_IO_TIMEOUT opt_sa.h 204SA_SPACE_TIMEOUT opt_sa.h 205SA_REWIND_TIMEOUT opt_sa.h 206SA_ERASE_TIMEOUT opt_sa.h 207SA_1FM_AT_EOD opt_sa.h 208 209# Options used only in cam/scsi/scsi_pt.c 210SCSI_PT_DEFAULT_TIMEOUT opt_pt.h 211 212# Options used only in cam/scsi/scsi_ses.c 213SES_ENABLE_PASSTHROUGH opt_ses.h 214 215# Options used in dev/sym/ (Symbios SCSI driver). 216SYM_SETUP_LP_PROBE_MAP opt_sym.h #-Low Priority Probe Map (bits) 217 # Allows the ncr to take precedence 218 # 1 (1<<0) -> 810a, 860 219 # 2 (1<<1) -> 825a, 875, 885, 895 220 # 4 (1<<2) -> 895a, 896, 1510d 221SYM_SETUP_SCSI_DIFF opt_sym.h #-HVD support for 825a, 875, 885 222 # disabled:0 (default), enabled:1 223SYM_SETUP_PCI_PARITY opt_sym.h #-PCI parity checking 224 # disabled:0, enabled:1 (default) 225SYM_SETUP_MAX_LUN opt_sym.h #-Number of LUNs supported 226 # default:8, range:[1..64] 227 228# Options used only in pci/ncr.c 229SCSI_NCR_DEBUG opt_ncr.h 230SCSI_NCR_MAX_SYNC opt_ncr.h 231SCSI_NCR_MAX_WIDE opt_ncr.h 232SCSI_NCR_MYADDR opt_ncr.h 233 234# Options used only in pci/isp_pci.c 235ISP_TARGET_MODE opt_isp.h 236 237# Options used in the 'ata' ATA/ATAPI driver 238ACD_DEBUG opt_ata.h 239AST_DEBUG opt_ata.h 240ATAPI_DEBUG opt_ata.h 241ATA_DEBUG opt_ata.h 242ATA_STATIC_ID opt_ata.h 243DEV_ATADISK opt_ata.h 244DEV_ATAPICD opt_ata.h 245DEV_ATAPIST opt_ata.h 246DEV_ATAPIFD opt_ata.h 247 248# Net stuff. 249ACCEPT_FILTER_DATA 250ACCEPT_FILTER_HTTP 251BOOTP opt_bootp.h 252BOOTP_COMPAT opt_bootp.h 253BOOTP_NFSROOT opt_bootp.h 254BOOTP_NFSV3 opt_bootp.h 255BOOTP_WIRED_TO opt_bootp.h 256BRIDGE opt_bdg.h 257ETHER_II opt_ef.h 258ETHER_8023 opt_ef.h 259ETHER_8022 opt_ef.h 260ETHER_SNAP opt_ef.h 261MROUTING opt_mrouting.h 262INET opt_inet.h 263SOMAXCONN opt_inet.h 264INET6 opt_inet6.h 265IPSEC opt_ipsec.h 266IPSEC_ESP opt_ipsec.h 267IPSEC_DEBUG opt_ipsec.h 268IPDIVERT 269DUMMYNET opt_ipdn.h 270IPFILTER opt_ipfilter.h 271IPFILTER_LOG opt_ipfilter.h 272IPFILTER_DEFAULT_BLOCK opt_ipfilter.h 273PFIL_HOOKS opt_pfil_hooks.h 274IPFIREWALL opt_ipfw.h 275IPFIREWALL_VERBOSE opt_ipfw.h 276IPFIREWALL_VERBOSE_LIMIT opt_ipfw.h 277IPFIREWALL_DEFAULT_TO_ACCEPT opt_ipfw.h 278IPFIREWALL_FORWARD opt_ipfw.h 279IPV6FIREWALL opt_ip6fw.h 280IPV6FIREWALL_VERBOSE opt_ip6fw.h 281IPV6FIREWALL_VERBOSE_LIMIT opt_ip6fw.h 282IPV6FIREWALL_DEFAULT_TO_ACCEPT opt_ip6fw.h 283IPSTEALTH 284IPX opt_ipx.h 285IPXIP opt_ipx.h 286IPTUNNEL opt_ipx.h 287LIBMCHAIN 288NCP opt_ncp.h 289NETATALK opt_atalk.h 290PPP_BSDCOMP opt_ppp.h 291PPP_DEFLATE opt_ppp.h 292PPP_FILTER opt_ppp.h 293RANDOM_IP_ID 294SLIP_IFF_OPTS opt_slip.h 295TCPDEBUG 296TCP_DROP_SYNFIN opt_tcp_input.h 297XBONEHACK 298 299# Netgraph(4). Use option NETGRAPH to enable the base netgraph code. 300# Each netgraph node type can be either be compiled into the kernel 301# or loaded dynamically. To get the former, include the corresponding 302# option below. Each type has its own man page, e.g. ng_async(4). 303NETGRAPH 304NETGRAPH_ASYNC opt_netgraph.h 305NETGRAPH_BPF opt_netgraph.h 306NETGRAPH_BRIDGE opt_netgraph.h 307NETGRAPH_CISCO opt_netgraph.h 308NETGRAPH_ECHO opt_netgraph.h 309NETGRAPH_ETHER opt_netgraph.h 310NETGRAPH_FRAME_RELAY opt_netgraph.h 311NETGRAPH_GIF opt_netgraph.h 312NETGRAPH_GIF_DEMUX opt_netgraph.h 313NETGRAPH_HOLE opt_netgraph.h 314NETGRAPH_IFACE opt_netgraph.h 315NETGRAPH_IP_INPUT opt_netgraph.h 316NETGRAPH_KSOCKET opt_netgraph.h 317NETGRAPH_LMI opt_netgraph.h 318# MPPC compression requires proprietary files (not included) 319NETGRAPH_MPPC_COMPRESSION opt_netgraph.h 320NETGRAPH_MPPC_ENCRYPTION opt_netgraph.h 321NETGRAPH_ONE2MANY opt_netgraph.h 322NETGRAPH_PPP opt_netgraph.h 323NETGRAPH_PPPOE opt_netgraph.h 324NETGRAPH_PPTPGRE opt_netgraph.h 325NETGRAPH_RFC1490 opt_netgraph.h 326NETGRAPH_SOCKET opt_netgraph.h 327NETGRAPH_SPLIT opt_netgraph.h 328NETGRAPH_TEE opt_netgraph.h 329NETGRAPH_TTY opt_netgraph.h 330NETGRAPH_UI opt_netgraph.h 331NETGRAPH_VJC opt_netgraph.h 332 333# ATM (HARP version) 334ATM_CORE opt_atm.h 335ATM_IP opt_atm.h 336ATM_SIGPVC opt_atm.h 337ATM_SPANS opt_atm.h 338ATM_UNI opt_atm.h 339 340# XXX Conflict: # of devices vs network protocol (Native ATM). 341# This makes "atm.h" unusable. 342NATM opt_natm.h 343 344DPT_ALLOW_MEMIO opt_dpt.h # Allow PCI devices to use memory 345 # mapped I/O 346# DPT driver debug flags 347DPT_MEASURE_PERFORMANCE opt_dpt.h 348DPT_HANDLE_TIMEOUTS opt_dpt.h 349DPT_TIMEOUT_FACTOR opt_dpt.h 350DPT_LOST_IRQ opt_dpt.h 351DPT_RESET_HBA opt_dpt.h 352 353# Adaptec ASR and DPT V/VI controller options 354ASR_MEASURE_PERFORMANCE opt_asr.h 355 356# Misc debug flags. Most of these should probably be replaced with 357# 'DEBUG', and then let people recompile just the interesting modules 358# with 'make CC="cc -DDEBUG"'. 359CLUSTERDEBUG opt_debug_cluster.h 360DEBUG_1284 opt_ppb_1284.h 361VP0_DEBUG opt_vpo.h 362LPT_DEBUG opt_lpt.h 363PLIP_DEBUG opt_plip.h 364LOCKF_DEBUG opt_debug_lockf.h 365NPX_DEBUG opt_debug_npx.h 366NETATALKDEBUG opt_atalk.h 367SI_DEBUG opt_debug_si.h 368 369# Fb options 370FB_DEBUG opt_fb.h 371FB_INSTALL_CDEV opt_fb.h 372 373# ppbus related options 374PERIPH_1284 opt_ppb_1284.h 375DONTPROBE_1284 opt_ppb_1284.h 376 377# smbus related options 378ENABLE_ALART opt_intpm.h 379 380# These cause changes all over the kernel 381BLKDEV_IOSIZE opt_global.h 382DEBUG opt_global.h 383DEBUG_LOCKS opt_global.h 384DEBUG_VFS_LOCKS opt_global.h 385LOOKUP_SHARED opt_global.h 386DIAGNOSTIC opt_global.h 387ENABLE_VFS_IOOPT opt_global.h 388INVARIANT_SUPPORT opt_global.h 389INVARIANTS opt_global.h 390REGRESSION opt_global.h 391RESTARTABLE_PANICS opt_global.h 392VFS_BIO_DEBUG opt_global.h 393 394# These are VM related options 395VM_KMEM_SIZE opt_vm.h 396VM_KMEM_SIZE_SCALE opt_vm.h 397VM_KMEM_SIZE_MAX opt_vm.h 398NO_SWAPPING opt_vm.h 399PQ_NOOPT opt_vmpage.h 400PQ_NORMALCACHE opt_vmpage.h 401PQ_MEDIUMCACHE opt_vmpage.h 402PQ_LARGECACHE opt_vmpage.h 403PQ_HUGECACHE opt_vmpage.h 404PQ_CACHESIZE opt_vmpage.h 405 406# Standard SMP options 407SMP opt_global.h 408 409# Size of the kernel message buffer 410MSGBUF_SIZE opt_msgbuf.h 411 412# PCI related options 413PCI_ENABLE_IO_MODES opt_pci.h 414PCI_ALLOW_UNSUPPORTED_IO_RANGE opt_pci.h 415 416# NFS options 417NFS_MINATTRTIMO opt_nfs.h 418NFS_MAXATTRTIMO opt_nfs.h 419NFS_MINDIRATTRTIMO opt_nfs.h 420NFS_MAXDIRATTRTIMO opt_nfs.h 421NFS_GATHERDELAY opt_nfs.h 422NFS_WDELAYHASHSIZ opt_nfs.h 423NFS_DEBUG opt_nfs.h 424 425# For the Bt848/Bt848A/Bt849/Bt878/Bt879 driver 426OVERRIDE_CARD opt_bktr.h 427OVERRIDE_TUNER opt_bktr.h 428OVERRIDE_DBX opt_bktr.h 429OVERRIDE_MSP opt_bktr.h 430BROOKTREE_SYSTEM_DEFAULT opt_bktr.h 431BROOKTREE_ALLOC_PAGES opt_bktr.h 432BKTR_OVERRIDE_CARD opt_bktr.h 433BKTR_OVERRIDE_TUNER opt_bktr.h 434BKTR_OVERRIDE_DBX opt_bktr.h 435BKTR_OVERRIDE_MSP opt_bktr.h 436BKTR_SYSTEM_DEFAULT opt_bktr.h 437BKTR_ALLOC_PAGES opt_bktr.h 438BKTR_USE_PLL opt_bktr.h 439BKTR_GPIO_ACCESS opt_bktr.h 440BKTR_NO_MSP_RESET opt_bktr.h 441BKTR_430_FX_MODE opt_bktr.h 442BKTR_SIS_VIA_MODE opt_bktr.h 443BKTR_USE_FREEBSD_SMBUS opt_bktr.h 444 445# meteor opt_meteor.h 446METEOR_ALLOC_PAGES opt_meteor.h 447METEOR_TEST_VIDEO opt_meteor.h 448METEOR_SYSTEM_DEFAULT opt_meteor.h 449METEOR_DEALLOC_PAGES opt_meteor.h 450METEOR_DEALLOC_ABOVE opt_meteor.h 451 452# Various mi ISA bus flags 453COM_ESP opt_sio.h 454COM_MULTIPORT opt_sio.h 455BREAK_TO_DEBUGGER opt_comconsole.h 456ALT_BREAK_TO_DEBUGGER opt_comconsole.h 457DEV_ISA opt_isa.h 458 459# Include tweaks for running under the SimOS machine simulator. 460SIMOS opt_simos.h 461 462# options for bus/device framework 463BUS_DEBUG opt_bus.h 464 465# options for USB support 466UHCI_DEBUG opt_usb.h 467OHCI_DEBUG opt_usb.h 468USB_DEBUG opt_usb.h 469UGEN_DEBUG opt_usb.h 470UHID_DEBUG opt_usb.h 471UHUB_DEBUG opt_usb.h 472UKBD_DEBUG opt_usb.h 473ULPT_DEBUG opt_usb.h 474UMASS_DEBUG opt_usb.h 475UMS_DEBUG opt_usb.h 476URIO_DEBUG opt_usb.h 477UKBD_DFLT_KEYMAP opt_ukbd.h 478 479# Vinum options 480VINUMDEBUG opt_vinum.h 481 482# Embedded system options 483INIT_PATH opt_init_path.h 484 485ROOTDEVNAME opt_rootdevname.h 486 487FDC_DEBUG opt_fdc.h 488PCFCLOCK_VERBOSE opt_pcfclock.h 489PCFCLOCK_MAX_RETRIES opt_pcfclock.h 490TDFX_LINUX opt_tdfx.h 491 492KTR opt_global.h 493KTR_MASK opt_ktr.h 494KTR_CPUMASK opt_ktr.h 495KTR_COMPILE opt_global.h 496KTR_ENTRIES opt_global.h 497KTR_VERBOSE opt_ktr.h 498MUTEX_DEBUG opt_global.h 499WITNESS opt_global.h 500WITNESS_DDB opt_witness.h 501WITNESS_SKIPSPIN opt_witness.h 502 503# options for ACPI support 504ACPI_DEBUG opt_acpi.h 505ACPI_NO_SEMAPHORES opt_acpi.h 506ACPI_MAX_THREADS opt_acpi.h 507 508# options for DEVFS, see sys/fs/devfs/devfs.h 509NDEVFSINO opt_devfs.h 510NDEVFSOVERFLOW opt_devfs.h 511 512# various 'device presence' options. 513DEV_MCA opt_mca.h 514DEV_BPF opt_bpf.h 515 516# ed driver 517ED_NO_MIIBUS opt_ed.h 518 519# Polling device handling 520DEVICE_POLLING opt_global.h 521 522# Mutex profiling 523MUTEX_PROFILING opt_global.h 524