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 110KERNFS opt_dontuse.h 111MFS opt_dontuse.h 112MSDOSFS opt_dontuse.h 113NULLFS opt_dontuse.h 114PORTAL opt_dontuse.h 115PROCFS opt_dontuse.h 116UMAPFS opt_dontuse.h 117NTFS opt_dontuse.h 118 119# These static filesystems has one slightly bogus static dependency in 120# sys/i386/i386/autoconf.c. If any of these filesystems are 121# statically compiled into the kernel, code for mounting them as root 122# filesystems will be enabled - but look below. Boot-code is purposely 123# unavailable for the LKM-based versions. 124CODA 125CD9660 126FFS 127IFS 128NFS 129NWFS 130 131# If you are following the conditions in the copyright, 132# you can enable soft-updates which will speed up a lot of thigs 133# and make the system safer from crashes at the same time. 134# otherwise a STUB module will be compiled in. 135SOFTUPDATES opt_ffs.h 136 137# Enabling this option turns on support for extended attributes 138# in FFS, which can be used to support high security configurations 139# as well as new file system features. 140FFS_EXTATTR opt_ffs.h 141 142# The above static dependencies are planned removed, with a 143# <filesystem>_ROOT option to control if it usable as root. This list 144# allows these options to be present in config files already (though 145# they won't make any difference yet). 146CD9660_ROOT opt_cd9660.h 147FFS_ROOT opt_ffs.h 148NFS_ROOT opt_nfsroot.h 149 150# The union static file system has bogus static dependencies, so it isn't 151# hidden yet. 152UNION 153 154# Options used only in param.c. 155HZ opt_param.h 156MAXFILES opt_param.h 157MAXUSERS opt_param.h 158NBUF opt_param.h 159NMBCLUSTERS opt_param.h 160NSFBUFS opt_param.h 161 162# Generic SCSI options. 163CAM_MAX_HIGHPOWER opt_cam.h 164CAMDEBUG opt_cam.h 165CAM_DEBUG_DELAY opt_cam.h 166CAM_DEBUG_BUS opt_cam.h 167CAM_DEBUG_TARGET opt_cam.h 168CAM_DEBUG_LUN opt_cam.h 169CAM_DEBUG_FLAGS opt_cam.h 170SCSI_DELAY opt_scsi.h 171SCSI_NO_SENSE_STRINGS opt_scsi.h 172SCSI_NO_OP_STRINGS opt_scsi.h 173 174# Options used only in cam/scsi/scsi_cd.c 175CHANGER_MIN_BUSY_SECONDS opt_cd.h 176CHANGER_MAX_BUSY_SECONDS opt_cd.h 177 178# Options used only in cam/scsi/scsi_sa.c. 179SA_SPACE_TIMEOUT opt_sa.h 180SA_REWIND_TIMEOUT opt_sa.h 181SA_ERASE_TIMEOUT opt_sa.h 182SA_1FM_AT_EOD opt_sa.h 183 184# Options used only in cam/scsi/scsi_pt.c 185SCSI_PT_DEFAULT_TIMEOUT opt_pt.h 186 187# Options used only in cam/scsi/scsi_ses.c 188SES_ENABLE_PASSTHROUGH opt_ses.h 189 190# Options used in dev/sym/ (Symbios SCSI driver). 191SYM_SETUP_LP_PROBE_MAP opt_sym.h #-Low Priority Probe Map (bits) 192 # Allows the ncr to take precedence 193 # 1 (1<<0) -> 810a, 860 194 # 2 (1<<1) -> 825a, 875, 885, 895 195 # 4 (1<<2) -> 895a, 896, 1510d 196SYM_SETUP_SCSI_DIFF opt_sym.h #-HVD support for 825a, 875, 885 197 # disabled:0 (default), enabled:1 198SYM_SETUP_PCI_PARITY opt_sym.h #-PCI parity checking 199 # disabled:0, enabled:1 (default) 200SYM_SETUP_MAX_LUN opt_sym.h #-Number of LUNs supported 201 # default:8, range:[1..64] 202 203# Options used only in pci/ncr.c 204SCSI_NCR_DEBUG opt_ncr.h 205SCSI_NCR_MAX_SYNC opt_ncr.h 206SCSI_NCR_MAX_WIDE opt_ncr.h 207SCSI_NCR_MYADDR opt_ncr.h 208 209# Options used only in pci/isp_pci.c 210ISP_TARGET_MODE opt_isp.h 211 212# Options used in the 'ata' ATA/ATAPI driver 213ATA_STATIC_ID opt_ata.h 214ATA_ENABLE_ATAPI_DMA opt_ata.h 215ATA_ENABLE_TAGS opt_ata.h 216 217# Resource limits. 218DFLDSIZ opt_rlimit.h 219MAXDSIZ opt_rlimit.h 220 221# Net stuff. 222ACCEPT_FILTER_DATA 223ACCEPT_FILTER_HTTP 224BOOTP opt_bootp.h 225BOOTP_COMPAT opt_bootp.h 226BOOTP_NFSROOT opt_bootp.h 227BOOTP_NFSV3 opt_bootp.h 228BOOTP_WIRED_TO opt_bootp.h 229BRIDGE opt_bdg.h 230ETHER_II opt_ef.h 231ETHER_8023 opt_ef.h 232ETHER_8022 opt_ef.h 233ETHER_SNAP opt_ef.h 234MROUTING opt_mrouting.h 235INET opt_inet.h 236INET6 opt_inet6.h 237IPSEC opt_ipsec.h 238IPSEC_ESP opt_ipsec.h 239IPSEC_DEBUG opt_ipsec.h 240IPDIVERT 241DUMMYNET opt_ipdn.h 242IPFILTER opt_ipfilter.h 243IPFILTER_LOG opt_ipfilter.h 244IPFILTER_DEFAULT_BLOCK opt_ipfilter.h 245PFIL_HOOKS opt_pfil_hooks.h 246IPFIREWALL opt_ipfw.h 247IPFIREWALL_VERBOSE opt_ipfw.h 248IPFIREWALL_VERBOSE_LIMIT opt_ipfw.h 249IPFIREWALL_DEFAULT_TO_ACCEPT opt_ipfw.h 250IPFIREWALL_FORWARD opt_ipfw.h 251IPV6FIREWALL opt_ip6fw.h 252IPV6FIREWALL_VERBOSE opt_ip6fw.h 253IPV6FIREWALL_VERBOSE_LIMIT opt_ip6fw.h 254IPV6FIREWALL_DEFAULT_TO_ACCEPT opt_ip6fw.h 255IPSTEALTH 256IPX opt_ipx.h 257IPXIP opt_ipx.h 258IPTUNNEL opt_ipx.h 259NCP opt_ncp.h 260NETATALK opt_atalk.h 261PPP_BSDCOMP opt_ppp.h 262PPP_DEFLATE opt_ppp.h 263PPP_FILTER opt_ppp.h 264SLIP_IFF_OPTS opt_slip.h 265TCP_COMPAT_42 opt_compat.h 266TCPDEBUG 267TCP_DROP_SYNFIN opt_tcp_input.h 268TCP_RESTRICT_RST opt_tcp_input.h 269XBONEHACK 270 271# Netgraph(4). Use option NETGRAPH to enable the base netgraph code. 272# Each netgraph node type can be either be compiled into the kernel 273# or loaded dynamically. To get the former, include the corresponding 274# option below. Each type has its own man page, e.g. ng_async(4). 275NETGRAPH 276NETGRAPH_ASYNC opt_netgraph.h 277NETGRAPH_BPF opt_netgraph.h 278NETGRAPH_BRIDGE opt_netgraph.h 279NETGRAPH_CISCO opt_netgraph.h 280NETGRAPH_ECHO opt_netgraph.h 281NETGRAPH_ETHER opt_netgraph.h 282NETGRAPH_FRAME_RELAY opt_netgraph.h 283NETGRAPH_HOLE opt_netgraph.h 284NETGRAPH_IFACE opt_netgraph.h 285NETGRAPH_KSOCKET opt_netgraph.h 286NETGRAPH_LMI opt_netgraph.h 287# MPPC compression requires proprietary files (not included) 288NETGRAPH_MPPC_COMPRESSION opt_netgraph.h 289NETGRAPH_MPPC_ENCRYPTION opt_netgraph.h 290NETGRAPH_ONE2MANY opt_netgraph.h 291NETGRAPH_PPP opt_netgraph.h 292NETGRAPH_PPPOE opt_netgraph.h 293NETGRAPH_PPTPGRE opt_netgraph.h 294NETGRAPH_RFC1490 opt_netgraph.h 295NETGRAPH_SOCKET opt_netgraph.h 296NETGRAPH_TEE opt_netgraph.h 297NETGRAPH_TTY opt_netgraph.h 298NETGRAPH_UI opt_netgraph.h 299NETGRAPH_VJC opt_netgraph.h 300 301# ATM (HARP version) 302ATM_CORE opt_atm.h 303ATM_IP opt_atm.h 304ATM_SIGPVC opt_atm.h 305ATM_SPANS opt_atm.h 306ATM_UNI opt_atm.h 307 308# XXX Conflict: # of devices vs network protocol (Native ATM). 309# This makes "atm.h" unusable. 310NATM opt_natm.h 311 312DPT_ALLOW_MEMIO opt_dpt.h # Allow PCI devices to use memory 313 # mapped I/O 314# DPT driver debug flags 315DPT_MEASURE_PERFORMANCE opt_dpt.h 316DPT_HANDLE_TIMEOUTS opt_dpt.h 317DPT_TIMEOUT_FACTOR opt_dpt.h 318DPT_LOST_IRQ opt_dpt.h 319DPT_RESET_HBA opt_dpt.h 320 321# Adaptec ASR and DPT V/VI controller options 322ASR_MEASURE_PERFORMANCE opt_asr.h 323 324# Misc debug flags. Most of these should probably be replaced with 325# 'DEBUG', and then let people recompile just the interesting modules 326# with 'make CC="cc -DDEBUG"'. 327CLUSTERDEBUG opt_debug_cluster.h 328DEBUG_1284 opt_ppb_1284.h 329VP0_DEBUG opt_vpo.h 330LPT_DEBUG opt_lpt.h 331PLIP_DEBUG opt_plip.h 332LOCKF_DEBUG opt_debug_lockf.h 333LOUTB opt_debug_outb.h 334NPX_DEBUG opt_debug_npx.h 335NETATALKDEBUG opt_atalk.h 336SI_DEBUG opt_debug_si.h 337 338# Fb options 339FB_DEBUG opt_fb.h 340FB_INSTALL_CDEV opt_fb.h 341 342# ppbus related options 343PERIPH_1284 opt_ppb_1284.h 344DONTPROBE_1284 opt_ppb_1284.h 345 346# smbus related options 347ENABLE_ALART opt_intpm.h 348 349# These cause changes all over the kernel 350BLKDEV_IOSIZE opt_global.h 351DEBUG opt_global.h 352DEBUG_LOCKS opt_global.h 353DEBUG_VFS_LOCKS opt_global.h 354DIAGNOSTIC opt_global.h 355ENABLE_VFS_IOOPT opt_global.h 356INVARIANT_SUPPORT opt_global.h 357INVARIANTS opt_global.h 358SIMPLELOCK_DEBUG opt_global.h 359VFS_BIO_DEBUG opt_global.h 360 361# These are VM related options 362VM_KMEM_SIZE opt_vm.h 363VM_KMEM_SIZE_SCALE opt_vm.h 364VM_KMEM_SIZE_MAX opt_vm.h 365NO_SWAPPING opt_vm.h 366PQ_NOOPT opt_vmpage.h 367PQ_NORMALCACHE opt_vmpage.h 368PQ_MEDIUMCACHE opt_vmpage.h 369PQ_LARGECACHE opt_vmpage.h 370PQ_HUGECACHE opt_vmpage.h 371PQ_CACHESIZE opt_vmpage.h 372 373# Standard SMP options 374SMP opt_global.h 375 376# sys/netkey 377KEY 378 379# Size of the kernel message buffer 380MSGBUF_SIZE opt_msgbuf.h 381 382# PCI related options 383PCI_QUIET opt_pci.h 384COMPAT_OLDPCI 385 386# NFS options 387NFS_MINATTRTIMO opt_nfs.h 388NFS_MAXATTRTIMO opt_nfs.h 389NFS_MINDIRATTRTIMO opt_nfs.h 390NFS_MAXDIRATTRTIMO opt_nfs.h 391NFS_GATHERDELAY opt_nfs.h 392NFS_UIDHASHSIZ opt_nfs.h 393NFS_WDELAYHASHSIZ opt_nfs.h 394NFS_MUIDHASHSIZ opt_nfs.h 395NFS_NOSERVER opt_nfs.h 396NFS_DEBUG opt_nfs.h 397 398# For the Bt848/Bt848A/Bt849/Bt878/Bt879 driver 399OVERRIDE_CARD opt_bktr.h 400OVERRIDE_TUNER opt_bktr.h 401OVERRIDE_DBX opt_bktr.h 402OVERRIDE_MSP opt_bktr.h 403BROOKTREE_SYSTEM_DEFAULT opt_bktr.h 404BROOKTREE_ALLOC_PAGES opt_bktr.h 405BKTR_OVERRIDE_CARD opt_bktr.h 406BKTR_OVERRIDE_TUNER opt_bktr.h 407BKTR_OVERRIDE_DBX opt_bktr.h 408BKTR_OVERRIDE_MSP opt_bktr.h 409BKTR_SYSTEM_DEFAULT opt_bktr.h 410BKTR_ALLOC_PAGES opt_bktr.h 411BKTR_USE_PLL opt_bktr.h 412BKTR_GPIO_ACCESS opt_bktr.h 413BKTR_NO_MSP_RESET opt_bktr.h 414BKTR_430_FX_MODE opt_bktr.h 415BKTR_SIS_VIA_MODE opt_bktr.h 416 417# meteor opt_meteor.h 418METEOR_ALLOC_PAGES opt_meteor.h 419METEOR_TEST_VIDEO opt_meteor.h 420METEOR_SYSTEM_DEFAULT opt_meteor.h 421METEOR_DEALLOC_PAGES opt_meteor.h 422METEOR_DEALLOC_ABOVE opt_meteor.h 423 424# Various mi ISA bus flags 425COM_ESP opt_sio.h 426COM_MULTIPORT opt_sio.h 427BREAK_TO_DEBUGGER opt_comconsole.h 428ALT_BREAK_TO_DEBUGGER opt_comconsole.h 429 430# Include tweaks for running under the SimOS machine simulator. 431SIMOS opt_simos.h 432 433# options for bus/device framework 434BUS_DEBUG opt_bus.h 435DEVICE_SYSCTLS opt_bus.h 436 437# options for USB support 438UHCI_DEBUG opt_usb.h 439OHCI_DEBUG opt_usb.h 440USB_DEBUG opt_usb.h 441UGEN_DEBUG opt_usb.h 442UHID_DEBUG opt_usb.h 443UHUB_DEBUG opt_usb.h 444UKBD_DEBUG opt_usb.h 445ULPT_DEBUG opt_usb.h 446UMASS_DEBUG opt_usb.h 447UMS_DEBUG opt_usb.h 448URIO_DEBUG opt_usb.h 449UKBD_DFLT_KEYMAP opt_ukbd.h 450 451# Vinum options 452VINUMDEBUG opt_vinum.h 453 454# Embedded system options 455INIT_PATH opt_init_path.h 456 457ROOTDEVNAME opt_rootdevname.h 458 459FDC_DEBUG opt_fdc.h 460PCFCLOCK_VERBOSE opt_pcfclock.h 461PCFCLOCK_MAX_RETRIES opt_pcfclock.h 462TDFX_LINUX opt_tdfx.h 463 464KTR opt_global.h 465KTR_MASK opt_ktr.h 466KTR_CPUMASK opt_ktr.h 467KTR_COMPILE opt_global.h 468KTR_ENTRIES opt_global.h 469KTR_EXTEND opt_global.h 470KTR_VERBOSE opt_ktr.h 471MUTEX_DEBUG opt_global.h 472WITNESS opt_global.h 473WITNESS_DDB opt_witness.h 474WITNESS_SKIPSPIN opt_witness.h 475 476# options for ACPI support 477ACPI_DEBUG opt_acpi.h 478AML_DEBUG opt_acpi.h 479ACPI_NO_ENABLE_ON_BOOT opt_acpi.h 480 481# options for DEVFS, see sys/fs/devfs/devfs.h 482NDEVFSINO opt_devfs.h 483NDEVFSOVERFLOW opt_devfs.h 484 485# options for device random 486NOBLOCKRANDOM 487