1# $FreeBSD$ 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 aic7xxx SCSI controller options 33AHC_ALLOW_MEMIO opt_aic7xxx.h # Allow PCI devices to use memory 34 # mapped I/O 35 36AHC_TMODE_ENABLE opt_aic7xxx.h # Bitmap of units to enable 37 # targetmode operations. 38 39AHC_DUMP_EEPROM opt_aic7xxx.h # Dump the contents of our 40 # configuration prom. 41 42AHC_DEBUG_SEQUENCER opt_aic7xxx.h # Enable diagnostic sequencer code 43 44ADW_ALLOW_MEMIO opt_adw.h # Allow PCI devices to use memory 45 # mapped I/O 46 47# Miscellaneous options. 48COMPAT_43 opt_compat.h 49COMPAT_SUNOS opt_compat.h 50COMPILING_LINT opt_global.h 51CY_PCI_FASTINTR 52DDB 53DDB_UNATTENDED opt_ddb.h 54GDB_REMOTE_CHAT opt_ddb.h 55DEVFS 56HW_WDOG 57KTRACE 58MD_NSECT opt_md.h 59MD_ROOT opt_md.h 60MD_ROOT_SIZE opt_md.h 61MFS_ROOT opt_mfs.h 62MFS_ROOT_SIZE opt_mfs.h 63NTIMECOUNTER opt_ntp.h 64NSWAPDEV opt_swap.h 65PPS_SYNC opt_ntp.h 66QUOTA 67SPX_HACK 68SUIDDIR opt_suiddir.h 69SYSVMSG opt_sysvipc.h 70SYSVSEM opt_sysvipc.h 71SYSVSHM opt_sysvipc.h 72SHMALL opt_sysvipc.h 73SHMMAX opt_sysvipc.h 74SHMMAXPGS opt_sysvipc.h 75SHMMIN opt_sysvipc.h 76SHMMNI opt_sysvipc.h 77SHMSEG opt_sysvipc.h 78SEMMAP opt_sysvipc.h 79SEMMNI opt_sysvipc.h 80SEMMNS opt_sysvipc.h 81SEMMNU opt_sysvipc.h 82SEMMSL opt_sysvipc.h 83SEMOPM opt_sysvipc.h 84SEMUME opt_sysvipc.h 85MSGMNB opt_sysvipc.h 86MSGMNI opt_sysvipc.h 87MSGSEG opt_sysvipc.h 88MSGSSZ opt_sysvipc.h 89MSGTQL opt_sysvipc.h 90UCONSOLE 91VFS_AIO 92 93# POSIX kernel options 94P1003_1B opt_posix.h 95_KPOSIX_PRIORITY_SCHEDULING opt_posix.h 96_KPOSIX_VERSION opt_posix.h 97 98# TrustedBSD and POSIX.1e Kernel Options 99CAPABILITIES opt_cap.h 100 101# Do we want the config file compiled into the kernel? 102INCLUDE_CONFIG_FILE opt_config.h 103 104# Options for static file systems. These should only be used at config 105# time, since the corresponding lkms cannot work if there are any static 106# dependencies. Unusability is enforced by hiding the defines for the 107# options in a never-included header. 108EXT2FS opt_dontuse.h 109FDESC opt_dontuse.h 110MFS opt_dontuse.h 111MSDOSFS opt_dontuse.h 112NULLFS opt_dontuse.h 113PORTAL opt_dontuse.h 114PROCFS opt_dontuse.h 115UMAPFS opt_dontuse.h 116NTFS opt_dontuse.h 117 118# These static filesystems has one slightly bogus static dependency in 119# sys/i386/i386/autoconf.c. If any of these filesystems are 120# statically compiled into the kernel, code for mounting them as root 121# filesystems will be enabled - but look below. Boot-code is purposely 122# unavailable for the LKM-based versions. 123CODA 124CD9660 125FFS 126IFS 127NFS 128NWFS 129 130# If you are following the conditions in the copyright, 131# you can enable soft-updates which will speed up a lot of thigs 132# and make the system safer from crashes at the same time. 133# otherwise a STUB module will be compiled in. 134SOFTUPDATES opt_ffs.h 135 136# Enabling this option turns on support for extended attributes 137# in FFS, which can be used to support high security configurations 138# as well as new file system features. 139FFS_EXTATTR opt_ffs.h 140 141# The above static dependencies are planned removed, with a 142# <filesystem>_ROOT option to control if it usable as root. This list 143# allows these options to be present in config files already (though 144# they won't make any difference yet). 145CD9660_ROOT opt_cd9660.h 146FFS_ROOT opt_ffs.h 147NFS_ROOT opt_nfsroot.h 148 149# The union static file system has bogus static dependencies, so it isn't 150# hidden yet. 151UNION 152 153# Options used only in param.c. 154HZ opt_param.h 155MAXFILES opt_param.h 156MAXUSERS opt_param.h 157NBUF opt_param.h 158NMBCLUSTERS opt_param.h 159NSFBUFS opt_param.h 160 161# Generic SCSI options. 162CAM_MAX_HIGHPOWER opt_cam.h 163CAMDEBUG opt_cam.h 164CAM_DEBUG_DELAY opt_cam.h 165CAM_DEBUG_BUS opt_cam.h 166CAM_DEBUG_TARGET opt_cam.h 167CAM_DEBUG_LUN opt_cam.h 168CAM_DEBUG_FLAGS opt_cam.h 169SCSI_DELAY opt_scsi.h 170SCSI_NO_SENSE_STRINGS opt_scsi.h 171SCSI_NO_OP_STRINGS opt_scsi.h 172 173# Options used only in cam/scsi/scsi_cd.c 174CHANGER_MIN_BUSY_SECONDS opt_cd.h 175CHANGER_MAX_BUSY_SECONDS opt_cd.h 176 177# Options used only in cam/scsi/scsi_sa.c. 178SA_SPACE_TIMEOUT opt_sa.h 179SA_REWIND_TIMEOUT opt_sa.h 180SA_ERASE_TIMEOUT opt_sa.h 181SA_1FM_AT_EOD opt_sa.h 182 183# Options used only in cam/scsi/scsi_pt.c 184SCSI_PT_DEFAULT_TIMEOUT opt_pt.h 185 186# Options used only in cam/scsi/scsi_ses.c 187SES_ENABLE_PASSTHROUGH opt_ses.h 188 189# Options used in dev/sym/ (Symbios SCSI driver). 190SYM_SETUP_LP_PROBE_MAP opt_sym.h #-Low Priority Probe Map (bits) 191 # Allows the ncr to take precedence 192 # 1 (1<<0) -> 810a, 860 193 # 2 (1<<1) -> 825a, 875, 885, 895 194 # 4 (1<<2) -> 895a, 896, 1510d 195SYM_SETUP_SCSI_DIFF opt_sym.h #-HVD support for 825a, 875, 885 196 # disabled:0 (default), enabled:1 197SYM_SETUP_PCI_PARITY opt_sym.h #-PCI parity checking 198 # disabled:0, enabled:1 (default) 199SYM_SETUP_MAX_LUN opt_sym.h #-Number of LUNs supported 200 # default:8, range:[1..64] 201 202# Options used only in pci/ncr.c 203SCSI_NCR_DEBUG opt_ncr.h 204SCSI_NCR_MAX_SYNC opt_ncr.h 205SCSI_NCR_MAX_WIDE opt_ncr.h 206SCSI_NCR_MYADDR opt_ncr.h 207 208# Options used only in pci/isp_pci.c 209ISP_TARGET_MODE opt_isp.h 210 211# Options used in the 'ata' ATA/ATAPI driver 212ATA_STATIC_ID opt_ata.h 213ATA_ENABLE_ATAPI_DMA opt_ata.h 214ATA_ENABLE_TAGS opt_ata.h 215 216# Resource limits. 217DFLDSIZ opt_rlimit.h 218MAXDSIZ opt_rlimit.h 219 220# Net stuff. 221ACCEPT_FILTER_DATA 222ACCEPT_FILTER_HTTP 223BOOTP opt_bootp.h 224BOOTP_COMPAT opt_bootp.h 225BOOTP_NFSROOT opt_bootp.h 226BOOTP_NFSV3 opt_bootp.h 227BOOTP_WIRED_TO opt_bootp.h 228BRIDGE opt_bdg.h 229ETHER_II opt_ef.h 230ETHER_8023 opt_ef.h 231ETHER_8022 opt_ef.h 232ETHER_SNAP opt_ef.h 233MROUTING opt_mrouting.h 234INET opt_inet.h 235INET6 opt_inet6.h 236IPSEC opt_ipsec.h 237IPSEC_ESP opt_ipsec.h 238IPSEC_DEBUG opt_ipsec.h 239IPDIVERT 240DUMMYNET opt_ipdn.h 241IPFILTER opt_ipfilter.h 242IPFILTER_LOG opt_ipfilter.h 243IPFILTER_DEFAULT_BLOCK opt_ipfilter.h 244PFIL_HOOKS opt_pfil_hooks.h 245IPFIREWALL opt_ipfw.h 246IPFIREWALL_VERBOSE opt_ipfw.h 247IPFIREWALL_VERBOSE_LIMIT opt_ipfw.h 248IPFIREWALL_DEFAULT_TO_ACCEPT opt_ipfw.h 249IPFIREWALL_FORWARD opt_ipfw.h 250IPV6FIREWALL opt_ip6fw.h 251IPV6FIREWALL_VERBOSE opt_ip6fw.h 252IPV6FIREWALL_VERBOSE_LIMIT opt_ip6fw.h 253IPV6FIREWALL_DEFAULT_TO_ACCEPT opt_ip6fw.h 254IPSTEALTH 255IPX opt_ipx.h 256IPXIP opt_ipx.h 257IPTUNNEL opt_ipx.h 258NCP opt_ncp.h 259NETATALK opt_atalk.h 260PPP_BSDCOMP opt_ppp.h 261PPP_DEFLATE opt_ppp.h 262PPP_FILTER opt_ppp.h 263SLIP_IFF_OPTS opt_slip.h 264TCP_COMPAT_42 opt_compat.h 265TCPDEBUG 266TCP_DROP_SYNFIN opt_tcp_input.h 267TCP_RESTRICT_RST opt_tcp_input.h 268XBONEHACK 269 270# Netgraph(4). Use option NETGRAPH to enable the base netgraph code. 271# Each netgraph node type can be either be compiled into the kernel 272# or loaded dynamically. To get the former, include the corresponding 273# option below. Each type has its own man page, e.g. ng_async(4). 274NETGRAPH 275NETGRAPH_ASYNC opt_netgraph.h 276NETGRAPH_BPF opt_netgraph.h 277NETGRAPH_BRIDGE opt_netgraph.h 278NETGRAPH_CISCO opt_netgraph.h 279NETGRAPH_ECHO opt_netgraph.h 280NETGRAPH_ETHER opt_netgraph.h 281NETGRAPH_FRAME_RELAY opt_netgraph.h 282NETGRAPH_HOLE opt_netgraph.h 283NETGRAPH_IFACE opt_netgraph.h 284NETGRAPH_KSOCKET opt_netgraph.h 285NETGRAPH_LMI opt_netgraph.h 286# MPPC compression requires proprietary files (not included) 287NETGRAPH_MPPC_COMPRESSION opt_netgraph.h 288NETGRAPH_MPPC_ENCRYPTION opt_netgraph.h 289NETGRAPH_ONE2MANY opt_netgraph.h 290NETGRAPH_PPP opt_netgraph.h 291NETGRAPH_PPPOE opt_netgraph.h 292NETGRAPH_PPTPGRE opt_netgraph.h 293NETGRAPH_RFC1490 opt_netgraph.h 294NETGRAPH_SOCKET opt_netgraph.h 295NETGRAPH_TEE opt_netgraph.h 296NETGRAPH_TTY opt_netgraph.h 297NETGRAPH_UI opt_netgraph.h 298NETGRAPH_VJC opt_netgraph.h 299 300# ATM (HARP version) 301ATM_CORE opt_atm.h 302ATM_IP opt_atm.h 303ATM_SIGPVC opt_atm.h 304ATM_SPANS opt_atm.h 305ATM_UNI opt_atm.h 306 307# XXX Conflict: # of devices vs network protocol (Native ATM). 308# This makes "atm.h" unusable. 309NATM opt_natm.h 310 311DPT_ALLOW_MEMIO opt_dpt.h # Allow PCI devices to use memory 312 # mapped I/O 313# DPT driver debug flags 314DPT_MEASURE_PERFORMANCE opt_dpt.h 315DPT_HANDLE_TIMEOUTS opt_dpt.h 316DPT_TIMEOUT_FACTOR opt_dpt.h 317DPT_LOST_IRQ opt_dpt.h 318DPT_RESET_HBA opt_dpt.h 319 320# Adaptec ASR and DPT V/VI controller options 321ASR_MEASURE_PERFORMANCE opt_asr.h 322 323# Misc debug flags. Most of these should probably be replaced with 324# 'DEBUG', and then let people recompile just the interesting modules 325# with 'make CC="cc -DDEBUG"'. 326CLUSTERDEBUG opt_debug_cluster.h 327DEBUG_1284 opt_ppb_1284.h 328VP0_DEBUG opt_vpo.h 329LPT_DEBUG opt_lpt.h 330PLIP_DEBUG opt_plip.h 331LOCKF_DEBUG opt_debug_lockf.h 332LOUTB opt_debug_outb.h 333NPX_DEBUG opt_debug_npx.h 334NETATALKDEBUG opt_atalk.h 335SI_DEBUG opt_debug_si.h 336 337# Fb options 338FB_DEBUG opt_fb.h 339FB_INSTALL_CDEV opt_fb.h 340 341# ppbus related options 342PERIPH_1284 opt_ppb_1284.h 343DONTPROBE_1284 opt_ppb_1284.h 344 345# smbus related options 346ENABLE_ALART opt_intpm.h 347 348# These cause changes all over the kernel 349BLKDEV_IOSIZE opt_global.h 350DEBUG opt_global.h 351DEBUG_LOCKS opt_global.h 352DEBUG_VFS_LOCKS opt_global.h 353DIAGNOSTIC opt_global.h 354ENABLE_VFS_IOOPT opt_global.h 355INVARIANT_SUPPORT opt_global.h 356INVARIANTS opt_global.h 357SIMPLELOCK_DEBUG opt_global.h 358VFS_BIO_DEBUG opt_global.h 359 360# These are VM related options 361VM_KMEM_SIZE opt_vm.h 362VM_KMEM_SIZE_SCALE opt_vm.h 363VM_KMEM_SIZE_MAX opt_vm.h 364NO_SWAPPING opt_vm.h 365PQ_NOOPT opt_vmpage.h 366PQ_NORMALCACHE opt_vmpage.h 367PQ_MEDIUMCACHE opt_vmpage.h 368PQ_LARGECACHE opt_vmpage.h 369PQ_HUGECACHE opt_vmpage.h 370PQ_CACHESIZE opt_vmpage.h 371 372# Standard SMP options 373SMP opt_global.h 374 375# sys/netkey 376KEY 377 378# Size of the kernel message buffer 379MSGBUF_SIZE opt_msgbuf.h 380 381# PCI related options 382PCI_QUIET opt_pci.h 383 384# NFS options 385NFS_MINATTRTIMO opt_nfs.h 386NFS_MAXATTRTIMO opt_nfs.h 387NFS_MINDIRATTRTIMO opt_nfs.h 388NFS_MAXDIRATTRTIMO opt_nfs.h 389NFS_GATHERDELAY opt_nfs.h 390NFS_UIDHASHSIZ opt_nfs.h 391NFS_WDELAYHASHSIZ opt_nfs.h 392NFS_MUIDHASHSIZ opt_nfs.h 393NFS_NOSERVER opt_nfs.h 394NFS_DEBUG opt_nfs.h 395 396# For the Bt848/Bt848A/Bt849/Bt878/Bt879 driver 397OVERRIDE_CARD opt_bktr.h 398OVERRIDE_TUNER opt_bktr.h 399OVERRIDE_DBX opt_bktr.h 400OVERRIDE_MSP opt_bktr.h 401BROOKTREE_SYSTEM_DEFAULT opt_bktr.h 402BROOKTREE_ALLOC_PAGES opt_bktr.h 403BKTR_OVERRIDE_CARD opt_bktr.h 404BKTR_OVERRIDE_TUNER opt_bktr.h 405BKTR_OVERRIDE_DBX opt_bktr.h 406BKTR_OVERRIDE_MSP opt_bktr.h 407BKTR_SYSTEM_DEFAULT opt_bktr.h 408BKTR_ALLOC_PAGES opt_bktr.h 409BKTR_USE_PLL opt_bktr.h 410BKTR_GPIO_ACCESS opt_bktr.h 411BKTR_NO_MSP_RESET opt_bktr.h 412BKTR_430_FX_MODE opt_bktr.h 413BKTR_SIS_VIA_MODE opt_bktr.h 414 415# meteor opt_meteor.h 416METEOR_ALLOC_PAGES opt_meteor.h 417METEOR_TEST_VIDEO opt_meteor.h 418METEOR_SYSTEM_DEFAULT opt_meteor.h 419METEOR_DEALLOC_PAGES opt_meteor.h 420METEOR_DEALLOC_ABOVE opt_meteor.h 421 422# Various mi ISA bus flags 423COM_ESP opt_sio.h 424COM_MULTIPORT opt_sio.h 425BREAK_TO_DEBUGGER opt_comconsole.h 426ALT_BREAK_TO_DEBUGGER opt_comconsole.h 427 428# Include tweaks for running under the SimOS machine simulator. 429SIMOS opt_simos.h 430 431# options for bus/device framework 432BUS_DEBUG opt_bus.h 433DEVICE_SYSCTLS opt_bus.h 434 435# options for USB support 436UHCI_DEBUG opt_usb.h 437OHCI_DEBUG opt_usb.h 438USB_DEBUG opt_usb.h 439UGEN_DEBUG opt_usb.h 440UHID_DEBUG opt_usb.h 441UHUB_DEBUG opt_usb.h 442UKBD_DEBUG opt_usb.h 443ULPT_DEBUG opt_usb.h 444UMASS_DEBUG opt_usb.h 445UMS_DEBUG opt_usb.h 446URIO_DEBUG opt_usb.h 447UKBD_DFLT_KEYMAP opt_ukbd.h 448 449# Vinum options 450VINUMDEBUG opt_vinum.h 451 452# Embedded system options 453INIT_PATH opt_init_path.h 454 455ROOTDEVNAME opt_rootdevname.h 456 457FDC_DEBUG opt_fdc.h 458PCFCLOCK_VERBOSE opt_pcfclock.h 459PCFCLOCK_MAX_RETRIES opt_pcfclock.h 460TDFX_LINUX opt_tdfx.h 461 462KTR opt_global.h 463KTR_MASK opt_ktr.h 464KTR_CPUMASK opt_ktr.h 465KTR_COMPILE opt_global.h 466KTR_ENTRIES opt_global.h 467KTR_EXTEND opt_global.h 468KTR_VERBOSE opt_ktr.h 469MUTEX_DEBUG opt_global.h 470WITNESS opt_global.h 471WITNESS_DDB opt_witness.h 472WITNESS_SKIPSPIN opt_witness.h 473 474# options for ACPI support 475ACPI_DEBUG opt_acpi.h 476AML_DEBUG opt_acpi.h 477ACPI_NO_ENABLE_ON_BOOT opt_acpi.h 478 479# options for DEVFS, see sys/fs/devfs/devfs.h 480NDEVFSINO opt_devfs.h 481NDEVFSOVERFLOW opt_devfs.h 482 483# options for device random 484NOBLOCKRANDOM 485