1# $FreeBSD: src/sys/conf/options,v 1.191.2.53 2003/06/04 17:56:58 sam Exp $ 2# $DragonFly: src/sys/conf/options,v 1.76 2007/12/23 04:46:04 pavalos Exp $ 3# 4# On the handling of kernel options 5# 6# All kernel options should be listed in LINT, with suitable 7# descriptions. Negative options (options that make some code not 8# compile) should be commented out; LINT should compile as much code 9# as possible. Try to structure option-using code so that a single 10# option only switch code on, or only switch code off, to make it 11# possible to have a full compile-test. If necessary, you can include 12# "opt_lint.h" and check for COMPILING_LINT to get maximum code 13# coverage. 14# 15# All new options shall also be listed in either "conf/options" or 16# "<platform>/conf/options.<platform>". Options that affect a single 17# source-file <xxx>.[c|s] should be directed into "opt_<xxx>.h", while 18# options that affect multiple files should either go in 19# "opt_global.h" if this is a kernel-wide option (used just about 20# everywhere), or in "opt_<option-name-in-lower-case>.h" if it affect 21# only some files. Note that the effect of listing only an option 22# without a header-file-name in conf/options (and cousins) is that the 23# last convention is followed. 24# 25# This handling scheme is not yet fully implemented. 26# 27# 28# Format of this file: 29# Option name filename 30# 31# If filename is missing, the default is 32# opt_<name-of-option-in-lower-case>.h 33 34# Adaptec Array Controller driver options 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 - noisier, emit trace items 40 # in loops, etc. 41 # 3 - even more noisy, more function 42 # points 43 # 4 - noisiest 44 45# Adaptec aic7xxx SCSI controller options 46AHC_ALLOW_MEMIO opt_aic7xxx.h # Allow PCI devices to use memory 47 # mapped I/O 48 49AHC_TMODE_ENABLE opt_aic7xxx.h # Bitmap of units to enable 50 # targetmode operations. 51 52AHC_DUMP_EEPROM opt_aic7xxx.h # Dump the contents of our 53 # configuration prom. 54 55AHC_DEBUG opt_aic7xxx.h # Compile in Aic7xxx Debugging code. 56 57AHC_DEBUG_OPTS opt_aic7xxx.h # Aic7xxx driver debugging options. 58 # See sys/dev/aic7xxx/aic7xxx.h 59 60AHC_REG_PRETTY_PRINT opt_aic7xxx.h # Print register bitfields in debug 61 # output. Adds ~15k to driver. 62 63# Adaptec aic79xx SCSI controller options 64AHD_DEBUG opt_aic79xx.h # Compile in Aic79xx Debugging code. 65 66AHD_DEBUG_OPTS opt_aic79xx.h # Aic79xx driver debugging options. 67 # See sys/dev/aic7xxx/aic79xx.h 68 69AHD_TMODE_ENABLE opt_aic79xx.h # Bitmap of units to enable 70 # targetmode operations. 71 72AHD_REG_PRETTY_PRINT opt_aic79xx.h # Print register bitfields in debug 73 # output. Adds ~15k to driver. 74 75ADW_ALLOW_MEMIO opt_adw.h # Allow PCI devices to use memory 76 # mapped I/O 77TWA_DEBUG opt_twa.h 78TWA_FLASH_FIRMWARE opt_twa.h 79 80#options for ACPI support 81ACPI_DEBUG opt_acpi.h 82ACPI_NO_SEMAPHORES opt_acpi.h 83ACPI_QUIRK_VMWARE opt_acpi.h 84 85# Miscellaneous options. 86COMPAT_DF12 opt_compatdf12.h 87COMPAT_43 opt_compat.h 88COMPAT_SUNOS opt_compat.h 89COMPILING_LINT opt_lint.h 90CY_PCI_FASTINTR 91DDB 92DDB_TRACE 93DDB_UNATTENDED opt_ddb.h 94GDB_REMOTE_CHAT opt_ddb.h 95HW_WDOG 96KTRACE 97LIBICONV 98MD_NSECT opt_md.h 99MD_ROOT opt_md.h 100MD_ROOT_SIZE opt_md.h 101NSWAPDEV opt_swap.h 102NSWBUF_MIN opt_swap.h 103PPS_SYNC opt_ntp.h 104QUOTA 105SUIDDIR opt_suiddir.h 106SYSVMSG opt_sysvipc.h 107SYSVSEM opt_sysvipc.h 108SYSVSHM opt_sysvipc.h 109SHMALL opt_sysvipc.h 110SHMMAX opt_sysvipc.h 111SHMMAXPGS opt_sysvipc.h 112SHMMIN opt_sysvipc.h 113SHMMNI opt_sysvipc.h 114SHMSEG opt_sysvipc.h 115SEMMAP opt_sysvipc.h 116SEMMNI opt_sysvipc.h 117SEMMNS opt_sysvipc.h 118SEMMNU opt_sysvipc.h 119SEMMSL opt_sysvipc.h 120SEMOPM opt_sysvipc.h 121SEMUME opt_sysvipc.h 122MSGMNB opt_sysvipc.h 123MSGMNI opt_sysvipc.h 124MSGSEG opt_sysvipc.h 125MSGSSZ opt_sysvipc.h 126MSGTQL opt_sysvipc.h 127UCONSOLE 128ICMP_BANDLIM 129VFS_AIO 130DIRECTIO opt_directio.h 131 132# POSIX kernel options 133P1003_1B opt_posix.h 134_KPOSIX_PRIORITY_SCHEDULING opt_posix.h 135_KPOSIX_VERSION opt_posix.h 136 137# Do we want the config file compiled into the kernel? 138INCLUDE_CONFIG_FILE opt_config.h 139 140# Options for static file systems. These should only be used at config 141# time, since the corresponding lkms cannot work if there are any static 142# dependencies. Unusability is enforced by hiding the defines for the 143# options in a never-included header. 144EXT2FS opt_dontuse.h 145FDESC opt_dontuse.h 146MFS opt_dontuse.h 147MSDOSFS opt_dontuse.h 148NULLFS opt_dontuse.h 149PORTAL opt_dontuse.h 150PROCFS opt_dontuse.h 151UDF opt_dontuse.h 152NTFS opt_dontuse.h 153 154# These static filesystems has one slightly bogus static dependency in 155# sys/platform/.../i386/autoconf.c. If any of these filesystems are 156# statically compiled into the kernel, code for mounting them as root 157# filesystems will be enabled - but look below. Boot-code is purposely 158# unavailable for the LKM-based versions. 159CD9660 160FFS 161NFS 162NWFS 163USERFS 164HAMMER 165 166# If you are following the conditions in the copyright, 167# you can enable soft-updates which will speed up a lot of thigs 168# and make the system safer from crashes at the same time. 169# otherwise a STUB module will be compiled in. 170SOFTUPDATES opt_ffs.h 171 172# Enable fast hash lookups for large directories on UFS-based filesystems. 173UFS_DIRHASH opt_ufs.h 174 175# The above static dependencies are planned removed, with a 176# <filesystem>_ROOT option to control if it usable as root. This list 177# allows these options to be present in config files already (though 178# they won't make any difference yet). 179FFS_ROOT opt_ffs.h 180NFS_ROOT opt_nfsroot.h 181 182# The union static file system has bogus static dependencies, so it isn't 183# hidden yet. 184UNION 185 186# Options used only in subr_param.c. 187HZ opt_param.h 188MAXFILES opt_param.h 189NBUF opt_param.h 190NMBCLUSTERS opt_param.h 191NMBUFS opt_param.h 192NSFBUFS opt_param.h 193VM_BCACHE_SIZE_MAX opt_param.h 194VM_SWZONE_SIZE_MAX opt_param.h 195MAXUSERS 196DFLDSIZ opt_param.h 197MAXDSIZ opt_param.h 198MAXSSIZ opt_param.h 199 200# Generic SCSI options. 201CAM_MAX_HIGHPOWER opt_cam.h 202CAMDEBUG opt_cam.h 203CAM_DEBUG_DELAY opt_cam.h 204CAM_DEBUG_BUS opt_cam.h 205CAM_DEBUG_TARGET opt_cam.h 206CAM_DEBUG_LUN opt_cam.h 207CAM_DEBUG_FLAGS opt_cam.h 208CAM_NEW_TRAN_CODE opt_cam.h 209SCSI_DELAY opt_scsi.h 210SCSI_NO_SENSE_STRINGS opt_scsi.h 211SCSI_NO_OP_STRINGS opt_scsi.h 212 213# Options used only in cam/scsi/scsi_cd.c 214CHANGER_MIN_BUSY_SECONDS opt_cd.h 215CHANGER_MAX_BUSY_SECONDS opt_cd.h 216 217# Options used only in cam/scsi/scsi_sa.c. 218SA_IO_TIMEOUT opt_sa.h 219SA_SPACE_TIMEOUT opt_sa.h 220SA_REWIND_TIMEOUT opt_sa.h 221SA_ERASE_TIMEOUT opt_sa.h 222SA_1FM_AT_EOD opt_sa.h 223 224# Options used only in cam/scsi/scsi_pt.c 225SCSI_PT_DEFAULT_TIMEOUT opt_pt.h 226 227# Options used only in cam/scsi/scsi_ses.c 228SES_ENABLE_PASSTHROUGH opt_ses.h 229 230# Options used in dev/sym/ (Symbios SCSI driver). 231SYM_SETUP_LP_PROBE_MAP opt_sym.h #-Low Priority Probe Map (bits) 232 # Allows the ncr to take precedence 233 # 1 (1<<0) -> 810a, 860 234 # 2 (1<<1) -> 825a, 875, 885, 895 235 # 4 (1<<2) -> 895a, 896, 1510d 236SYM_SETUP_SCSI_DIFF opt_sym.h #-HVD support for 825a, 875, 885 237 # disabled:0 (default), enabled:1 238SYM_SETUP_PCI_PARITY opt_sym.h #-PCI parity checking 239 # disabled:0, enabled:1 (default) 240SYM_SETUP_MAX_LUN opt_sym.h #-Number of LUNs supported 241 # default:8, range:[1..64] 242 243# Options used only in pci/ncr.c 244SCSI_NCR_DEBUG opt_ncr.h 245SCSI_NCR_MAX_SYNC opt_ncr.h 246SCSI_NCR_MAX_WIDE opt_ncr.h 247SCSI_NCR_MYADDR opt_ncr.h 248 249# Options used only in pci/isp_pci.c 250ISP_TARGET_MODE opt_isp.h 251 252# Options used in the 'ata' ATA/ATAPI driver 253ATA_STATIC_ID opt_ata.h 254 255# Net stuff. 256# altq stuff 257ALTQ opt_global.h 258ALTQ_CBQ opt_altq.h 259ALTQ_RED opt_altq.h 260ALTQ_RIO opt_altq.h 261ALTQ_HFSC opt_altq.h 262ALTQ_PRIQ opt_altq.h 263ALTQ_NOPCC opt_altq.h 264ALTQ_DEBUG opt_altq.h 265 266ACCEPT_FILTER_DATA 267ACCEPT_FILTER_HTTP 268BOOTP opt_bootp.h 269BOOTP_COMPAT opt_bootp.h 270BOOTP_NFSROOT opt_bootp.h 271BOOTP_NFSV3 opt_bootp.h 272BOOTP_WIRED_TO opt_bootp.h 273CARP opt_carp.h 274ETHER_II opt_ef.h 275ETHER_8023 opt_ef.h 276ETHER_8022 opt_ef.h 277ETHER_SNAP opt_ef.h 278MROUTING opt_mrouting.h 279PIM opt_mrouting.h 280INET opt_inet.h 281INET6 opt_inet6.h 282IPSEC opt_ipsec.h 283IPSEC_ESP opt_ipsec.h 284IPSEC_DEBUG opt_ipsec.h 285IPSEC_FILTERGIF opt_ipsec.h 286FAST_IPSEC opt_ipsec.h 287IPDIVERT 288DUMMYNET opt_ipdn.h 289IPFILTER opt_ipfilter.h 290IPFILTER_LOG opt_ipfilter.h 291IPFILTER_DEFAULT_BLOCK opt_ipfilter.h 292IPFIREWALL opt_ipfw.h 293IPFIREWALL_VERBOSE opt_ipfw.h 294IPFIREWALL_VERBOSE_LIMIT opt_ipfw.h 295IPFIREWALL_DEFAULT_TO_ACCEPT opt_ipfw.h 296IPFIREWALL_FORWARD opt_ipfw.h 297IPV6FIREWALL opt_ip6fw.h 298IPV6FIREWALL_VERBOSE opt_ip6fw.h 299IPV6FIREWALL_VERBOSE_LIMIT opt_ip6fw.h 300IPV6FIREWALL_DEFAULT_TO_ACCEPT opt_ip6fw.h 301IPSTEALTH 302IPX opt_ipx.h 303IPXIP opt_ipx.h 304IPTUNNEL opt_ipx.h 305LIBMCHAIN 306NCP opt_ncp.h 307NETATALK opt_atalk.h 308NS opt_ns.h 309PPP_BSDCOMP opt_ppp.h 310PPP_DEFLATE opt_ppp.h 311PPP_FILTER opt_ppp.h 312SLIP_IFF_OPTS opt_slip.h 313TCPDEBUG 314TCP_DROP_SYNFIN opt_tcp_input.h 315 316XBONEHACK 317MBUF_STRESS_TEST opt_mbuf_stress_test.h 318 319# Netgraph(4). Use option NETGRAPH to enable the base netgraph code. 320# Each netgraph node type can be either be compiled into the kernel 321# or loaded dynamically. To get the former, include the corresponding 322# option below. Each type has its own man page, e.g. ng_async(8). 323NETGRAPH 324NETGRAPH_ASYNC opt_netgraph.h 325NETGRAPH_BPF opt_netgraph.h 326NETGRAPH_BRIDGE opt_netgraph.h 327NETGRAPH_CISCO opt_netgraph.h 328NETGRAPH_ECHO opt_netgraph.h 329NETGRAPH_EIFACE opt_netgraph.h 330NETGRAPH_ETHER opt_netgraph.h 331NETGRAPH_FRAME_RELAY opt_netgraph.h 332NETGRAPH_HOLE opt_netgraph.h 333NETGRAPH_IFACE opt_netgraph.h 334NETGRAPH_KSOCKET opt_netgraph.h 335NETGRAPH_LMI opt_netgraph.h 336NETGRAPH_L2TP opt_netgraph.h 337# MPPC compression requires proprietary files (not included) 338NETGRAPH_MPPC_COMPRESSION opt_netgraph.h 339NETGRAPH_MPPC_ENCRYPTION opt_netgraph.h 340NETGRAPH_ONE2MANY opt_netgraph.h 341NETGRAPH_PPP opt_netgraph.h 342NETGRAPH_PPPOE opt_netgraph.h 343NETGRAPH_PPTPGRE opt_netgraph.h 344NETGRAPH_RFC1490 opt_netgraph.h 345NETGRAPH_SOCKET opt_netgraph.h 346NETGRAPH_TEE opt_netgraph.h 347NETGRAPH_TTY opt_netgraph.h 348NETGRAPH_UI opt_netgraph.h 349NETGRAPH_VJC opt_netgraph.h 350 351# DRM options 352DRM_DEBUG opt_drm.h 353DRM_LINUX opt_drm.h 354 355# ATM (HARP version) 356ATM_CORE opt_atm.h 357ATM_IP opt_atm.h 358ATM_SIGPVC opt_atm.h 359ATM_SPANS opt_atm.h 360ATM_UNI opt_atm.h 361 362# XXX Conflict: # of devices vs network protocol (Native ATM). 363# This makes "atm.h" unusable. 364NATM opt_natm.h 365 366# DPT driver debug flags 367DPT_MEASURE_PERFORMANCE opt_dpt.h 368DPT_HANDLE_TIMEOUTS opt_dpt.h 369DPT_TIMEOUT_FACTOR opt_dpt.h 370DPT_LOST_IRQ opt_dpt.h 371DPT_RESET_HBA opt_dpt.h 372 373# Misc debug flags. Most of these should probably be replaced with 374# 'DEBUG', and then let people recompile just the interesting modules 375# with 'make CC="cc -DDEBUG"'. 376CLUSTERDEBUG opt_debug_cluster.h 377DEBUG_1284 opt_ppb_1284.h 378VP0_DEBUG opt_vpo.h 379LPT_DEBUG opt_lpt.h 380PLIP_DEBUG opt_plip.h 381LOCKF_DEBUG opt_debug_lockf.h 382LOUTB opt_debug_outb.h 383NPX_DEBUG opt_debug_npx.h 384NETATALKDEBUG opt_atalk.h 385SI_DEBUG opt_debug_si.h 386 387# Fb options 388FB_DEBUG opt_fb.h 389FB_INSTALL_CDEV opt_fb.h 390 391# ppbus related options 392PERIPH_1284 opt_ppb_1284.h 393DONTPROBE_1284 opt_ppb_1284.h 394 395# smbus related options 396ENABLE_ALART opt_intpm.h 397 398# These cause changes all over the kernel 399BLKDEV_IOSIZE opt_global.h 400DEBUG opt_global.h 401DEBUG_LOCKS opt_global.h 402DEBUG_CRIT_SECTIONS opt_global.h 403DIAGNOSTIC opt_global.h 404INVARIANTS opt_global.h 405SIMPLELOCK_DEBUG opt_global.h 406VFS_BIO_DEBUG opt_global.h 407DEBUG_INTERRUPTS opt_global.h 408SOCKBUF_DEBUG opt_global.h 409PANIC_DEBUG opt_global.h 410MBUF_DEBUG opt_global.h 411 412# Sample system/interrupt PC 413DEBUG_PCTRACK opt_pctrack.h 414 415# These are VM related options 416NO_SWAPPING opt_vm.h 417PQ_CACHESIZE opt_vmpage.h 418 419# Standard SMP options 420SMP opt_global.h 421 422# sys/netkey 423KEY 424 425# Size of the kernel message buffer 426MSGBUF_SIZE opt_msgbuf.h 427 428# PCI related options 429PCI_QUIET opt_pci.h 430PCI_ENABLE_IO_MODES opt_pci.h 431PCI_MAP_FIXUP opt_pci.h 432COMPAT_OLDPCI 433 434# NFS options 435NFS_MINATTRTIMO opt_nfs.h 436NFS_MAXATTRTIMO opt_nfs.h 437NFS_MINDIRATTRTIMO opt_nfs.h 438NFS_MAXDIRATTRTIMO opt_nfs.h 439NFS_GATHERDELAY opt_nfs.h 440NFS_UIDHASHSIZ opt_nfs.h 441NFS_WDELAYHASHSIZ opt_nfs.h 442NFS_MUIDHASHSIZ opt_nfs.h 443NFS_NOSERVER opt_nfs.h 444NFS_DEBUG opt_nfs.h 445 446# MSDOSFS options 447MSDOSFS_DEBUG opt_msdosfs.h 448 449# For the Bt848/Bt848A/Bt849/Bt878/Bt879 driver 450BROOKTREE_SYSTEM_DEFAULT opt_bktr.h 451BROOKTREE_ALLOC_PAGES opt_bktr.h 452BKTR_OVERRIDE_CARD opt_bktr.h 453BKTR_OVERRIDE_TUNER opt_bktr.h 454BKTR_OVERRIDE_DBX opt_bktr.h 455BKTR_OVERRIDE_MSP opt_bktr.h 456BKTR_SYSTEM_DEFAULT opt_bktr.h 457BKTR_ALLOC_PAGES opt_bktr.h 458BKTR_USE_PLL opt_bktr.h 459BKTR_GPIO_ACCESS opt_bktr.h 460BKTR_NO_MSP_RESET opt_bktr.h 461BKTR_430_FX_MODE opt_bktr.h 462BKTR_SIS_VIA_MODE opt_bktr.h 463BKTR_NEW_MSP34XX_DRIVER opt_bktr.h 464 465# meteor opt_meteor.h 466METEOR_ALLOC_PAGES opt_meteor.h 467METEOR_TEST_VIDEO opt_meteor.h 468METEOR_SYSTEM_DEFAULT opt_meteor.h 469METEOR_DEALLOC_PAGES opt_meteor.h 470METEOR_DEALLOC_ABOVE opt_meteor.h 471 472# Various mi ISA bus flags 473COMPAT_OLDISA opt_compat_oldisa.h 474COM_ESP opt_sio.h 475COM_MULTIPORT opt_sio.h 476BREAK_TO_DEBUGGER opt_comconsole.h 477ALT_BREAK_TO_DEBUGGER opt_comconsole.h 478 479# options for bus/device framework 480BUS_DEBUG opt_bus.h 481DEVICE_SYSCTLS opt_bus.h 482 483# options for USB support 484OHCI_DEBUG opt_usb.h 485USB_DEBUG opt_usb.h 486 487# Vinum options 488VINUMDEBUG opt_vinum.h 489 490# Embedded system options 491UKBD_DFLT_KEYMAP opt_ukbd.h 492INIT_PATH opt_init_path.h 493 494ROOTDEVNAME opt_rootdevname.h 495 496FDC_DEBUG opt_fdc.h 497PCFCLOCK_VERBOSE opt_pcfclock.h 498PCFCLOCK_MAX_RETRIES opt_pcfclock.h 499 500# Polling device handling 501DEVICE_POLLING opt_polling.h 502 503# options for ubsec driver 504UBSEC_DEBUG opt_ubsec.h 505UBSEC_RNDTEST opt_ubsec.h 506UBSEC_NO_RNG opt_ubsec.h 507 508# options for hifn driver 509HIFN_DEBUG opt_hifn.h 510HIFN_RNDTEST opt_hifn.h 511HIFN_NO_RNG opt_hifn.h 512 513# KTR options 514KTR opt_global.h 515KTR_ALL opt_ktr.h 516KTR_TOKENS opt_ktr.h 517KTR_MEMORY opt_ktr.h 518KTR_USB_MEMORY opt_ktr.h 519KTR_IPIQ opt_ktr.h 520KTR_MSGPORT opt_ktr.h 521KTR_ENTRIES opt_global.h 522KTR_VERBOSE opt_ktr.h 523KTR_GIANT_CONTENTION opt_ktr.h 524KTR_SPIN_CONTENTION opt_ktr.h 525KTR_IF_BGE opt_ktr.h 526KTR_IF_EM opt_ktr.h 527 528# bce driver 529BCE_DEBUG opt_bce.h 530BCE_NVRAM_WRITE_SUPPORT opt_bce.h 531 532# ed driver 533ED_NO_MIIBUS opt_ed.h 534 535# wi driver 536WI_SYMBOL_FIRMWARE opt_wi.h 537 538# dcons options 539DCONS_BUF_SIZE opt_dcons.h 540DCONS_POLL_HZ opt_dcons.h 541DCONS_FORCE_CONSOLE opt_dcons.h 542DCONS_FORCE_GDB opt_dcons.h 543 544# deprecated drivers and options 545I_WANT_DEPRECATED_STUFF opt_deprecated.h 546 547# SCTP 548SCTP opt_sctp.h 549SCTP_DEBUG opt_sctp.h 550SCTP_USE_ADLER32 opt_sctp.h 551SCTP_HIGH_SPEED opt_sctp.h 552SCTP_STAT_LOGGING opt_sctp.h 553SCTP_CWND_LOGGING opt_sctp.h 554SCTP_BLK_LOGGING opt_sctp.h 555SCTP_STR_LOGGING opt_sctp.h 556SCTP_FR_LOGGING opt_sctp.h 557SCTP_MAP_LOGGING opt_sctp.h 558 559# syslink kernel support 560# 561SYSLINK opt_syslink.h 562