Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/conf/options
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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 include 11 # "opt_lint.h" and 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 # "<machine>/conf/options.<machine>". Options that affect a single 16 # source-file <xxx>.[c|s] should be directed into "opt_<xxx>.h", while 17 # options that affect multiple files should either go in 18 # "opt_global.h" if this is a kernel-wide option (used just about 19 # everywhere), or in "opt_<option-name-in-lower-case>.h" if it affect 20 # only some files. Note that the effect of listing only an option 21 # without a header-file-name in conf/options (and cousins) is that the 22 # last 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 aic7xxx SCSI controller options 34 AHC_ALLOW_MEMIO opt_aic7xxx.h # Allow PCI devices to use memory 35 # mapped I/O 36 37 AHC_TMODE_ENABLE opt_aic7xxx.h # Bitmap of units to enable 38 # targetmode operations. 39 40 AHC_DUMP_EEPROM opt_aic7xxx.h # Dump the contents of our 41 # configuration prom. 42 43 ADW_ALLOW_MEMIO opt_adw.h # Allow PCI devices to use memory 44 # mapped I/O 45 46 # Miscellaneous options. 47 COMPAT_43 opt_compat.h 48 COMPAT_SUNOS opt_compat.h 49 COMPILING_LINT opt_lint.h 50 CY_PCI_FASTINTR 51 DDB 52 DDB_UNATTENDED opt_ddb.h 53 GDB_REMOTE_CHAT opt_ddb.h 54 DEVFS 55 FAILSAFE 56 HW_WDOG 57 KTRACE 58 MFS_ROOT opt_mfs.h 59 MFS_ROOT_SIZE opt_mfs.h 60 NTIMECOUNTER opt_ntp.h 61 EXPORTMFS opt_mfs.h 62 NO_LKM 63 NSWAPDEV opt_swap.h 64 PPS_SYNC opt_ntp.h 65 QUOTA 66 SPX_HACK 67 SUIDDIR opt_suiddir.h 68 SYSVMSG opt_sysvipc.h 69 SYSVSEM opt_sysvipc.h 70 SYSVSHM opt_sysvipc.h 71 UCONSOLE 72 ICMP_BANDLIM 73 74 # POSIX kernel options 75 P1003_1B opt_posix.h 76 _KPOSIX_PRIORITY_SCHEDULING opt_posix.h 77 _KPOSIX_VERSION opt_posix.h 78 79 # Do we want the config file compiled into the kernel? 80 INCLUDE_CONFIG_FILE opt_config.h 81 82 # Options for static file systems. These should only be used at config 83 # time, since the corresponding lkms cannot work if there are any static 84 # dependencies. Unusability is enforced by hiding the defines for the 85 # options in a never-included header. 86 EXT2FS opt_dontuse.h 87 FDESC opt_dontuse.h 88 KERNFS opt_dontuse.h 89 MFS opt_dontuse.h 90 MSDOSFS opt_dontuse.h 91 NULLFS opt_dontuse.h 92 PORTAL opt_dontuse.h 93 PROCFS opt_dontuse.h 94 UMAPFS opt_dontuse.h 95 NTFS opt_dontuse.h 96 97 # These static filesystems has one slightly bogus static dependency in 98 # sys/i386/i386/autoconf.c. If any of these filesystems are 99 # statically compiled into the kernel, code for mounting them as root 100 # filesystems will be enabled - but look below. Boot-code is purposely 101 # unavailable for the LKM-based versions. 102 CODA 103 CD9660 104 FFS 105 NFS 106 107 # If you are following the conditions in the copyright, 108 # you can enable soft-updates which will speed up a lot of thigs 109 # and make the system safer from crashes at the same time. 110 # otherwise a STUB module will be compiled in. 111 SOFTUPDATES opt_ffs.h 112 113 # The above static dependencies are planned removed, with a 114 # <filesystem>_ROOT option to control if it usable as root. This list 115 # allows these options to be present in config files already (though 116 # they won't make any difference yet). 117 CD9660_ROOT opt_cd9660.h 118 FFS_ROOT opt_ffs.h 119 NFS_ROOT opt_nfsroot.h 120 121 # Multi-session CD-Rs might require a huge amount of time in order to 122 # "settle". If we are about mounting them as the root f/s, we gotta 123 # wait a little. 124 CD9660_ROOTDELAY opt_cd9660.h 125 126 # The union static file system has bogus static dependencies, so it isn't 127 # hidden yet. 128 UNION 129 130 # Options used only in param.c. 131 HZ opt_param.h 132 MAXFILES opt_param.h 133 MAXUSERS opt_param.h 134 MSGMNB opt_param.h 135 MSGMNI opt_param.h 136 MSGSEG opt_param.h 137 MSGSSZ opt_param.h 138 MSGTQL opt_param.h 139 NBUF opt_param.h 140 NMBCLUSTERS opt_param.h 141 NSFBUFS opt_param.h 142 SEMMAP opt_param.h 143 SEMMNI opt_param.h 144 SEMMNS opt_param.h 145 SEMMNU opt_param.h 146 SEMMSL opt_param.h 147 SEMOPM opt_param.h 148 SEMUME opt_param.h 149 SHMALL opt_param.h 150 SHMMAX opt_param.h 151 SHMMAXPGS opt_param.h 152 SHMMIN opt_param.h 153 SHMMNI opt_param.h 154 SHMSEG opt_param.h 155 156 # Generic SCSI options. 157 CAM_MAX_HIGHPOWER opt_cam.h 158 CAMDEBUG opt_cam.h 159 CAM_DEBUG_BUS opt_cam.h 160 CAM_DEBUG_TARGET opt_cam.h 161 CAM_DEBUG_LUN opt_cam.h 162 CAM_DEBUG_FLAGS opt_cam.h 163 SCSI_DELAY opt_scsi.h 164 SCSI_REPORT_GEOMETRY opt_scsi.h 165 SCSI_NO_SENSE_STRINGS opt_scsi.h 166 SCSI_NO_OP_STRINGS opt_scsi.h 167 168 # Options used only in cam/scsi/scsi_cd.c 169 CHANGER_MIN_BUSY_SECONDS opt_cd.h 170 CHANGER_MAX_BUSY_SECONDS opt_cd.h 171 172 # Options used only in cam/scsi/scsi_sa.c. 173 SA_SPACE_TIMEOUT opt_sa.h 174 SA_REWIND_TIMEOUT opt_sa.h 175 SA_ERASE_TIMEOUT opt_sa.h 176 SA_1FM_AT_EOD opt_sa.h 177 178 # Options used only in cam/scsi/scsi_pt.c 179 SCSI_PT_DEFAULT_TIMEOUT opt_pt.h 180 181 # Options used in dev/sym/ (Symbios SCSI driver). 182 SYM_SETUP_LP_PROBE_MAP opt_sym.h # Low Priority Probe Map (bits) 183 SYM_SETUP_SCSI_DIFF opt_sym.h # HVD support for 825a, 875, 885 184 SYM_SETUP_PCI_PARITY opt_sym.h # PCI parity checking 185 SYM_SETUP_MAX_LUN opt_sym.h # Number of LUNs supported 186 187 # Options used only in pci/ncr.c 188 SCSI_NCR_DEBUG opt_ncr.h 189 SCSI_NCR_DFLT_TAGS opt_ncr.h 190 SCSI_NCR_MAX_SYNC opt_ncr.h 191 SCSI_NCR_MAX_WIDE opt_ncr.h 192 SCSI_NCR_MYADDR opt_ncr.h 193 194 # Options used only in pci/isp_pci.c 195 SCSI_ISP_NO_FWLOAD_MASK opt_isp.h 196 SCSI_ISP_NO_NVRAM_MASK opt_isp.h 197 SCSI_ISP_PREFER_MEM_MAP opt_isp.h 198 SCSI_ISP_FABRIC opt_isp.h 199 SCSI_ISP_SCCLUN opt_isp.h 200 SCSI_ISP_FCDUPLEX opt_isp.h 201 SCSI_ISP_WWN opt_isp.h 202 ISP_DISABLE_1020_SUPPORT opt_isp.h 203 ISP_DISABLE_1080_SUPPORT opt_isp.h 204 ISP_DISABLE_12160_SUPPORT opt_isp.h 205 ISP_DISABLE_2100_SUPPORT opt_isp.h 206 ISP_DISABLE_2200_SUPPORT opt_isp.h 207 ISP_COMPILE_FW opt_isp.h 208 ISP_COMPILE_1020_FW opt_isp.h 209 ISP_COMPILE_1080_FW opt_isp.h 210 ISP_COMPILE_12160_FW opt_isp.h 211 ISP_COMPILE_2100_FW opt_isp.h 212 ISP_COMPILE_2200_FW opt_isp.h 213 ISP_TARGET_MODE opt_isp.h 214 215 # Resource limits. 216 DFLDSIZ opt_rlimit.h 217 MAXDSIZ opt_rlimit.h 218 219 # Net stuff. 220 BOOTP opt_bootp.h 221 BOOTP_COMPAT opt_bootp.h 222 BOOTP_NFSROOT opt_bootp.h 223 BOOTP_NFSV3 opt_bootp.h 224 BOOTP_WIRED_TO opt_bootp.h 225 BRIDGE opt_bdg.h 226 MROUTING opt_mrouting.h 227 INET opt_inet.h 228 IPDIVERT 229 DUMMYNET opt_ipdn.h 230 IPFIREWALL opt_ipfw.h 231 IPFIREWALL_VERBOSE opt_ipfw.h 232 IPFIREWALL_VERBOSE_LIMIT opt_ipfw.h 233 IPFIREWALL_DEFAULT_TO_ACCEPT opt_ipfw.h 234 IPFIREWALL_FORWARD opt_ipfw.h 235 IPSTEALTH 236 IPX opt_ipx.h 237 IPXIP opt_ipx.h 238 IPTUNNEL opt_ipx.h 239 NETATALK opt_atalk.h 240 PPP_BSDCOMP opt_ppp.h 241 PPP_DEFLATE opt_ppp.h 242 PPP_FILTER opt_ppp.h 243 TCP_COMPAT_42 opt_compat.h 244 TCPDEBUG 245 TCP_DROP_SYNFIN opt_tcp_input.h 246 TCP_RESTRICT_RST opt_tcp_input.h 247 IPFILTER opt_ipfilter.h 248 IPFILTER_LOG opt_ipfilter.h 249 IPFILTER_LKM opt_ipfilter.h 250 IPFILTER_DEFAULT_BLOCK opt_ipfilter.h 251 252 # Netgraph(4). Use option NETGRAPH to enable the base netgraph code. 253 # Each netgraph node type can be either be compiled into the kernel 254 # or loaded dynamically. To get the former, include the corresponding 255 # option below. 256 NETGRAPH 257 NETGRAPH_ASYNC opt_netgraph.h 258 NETGRAPH_BPF opt_netgraph.h 259 NETGRAPH_CISCO opt_netgraph.h 260 NETGRAPH_ECHO opt_netgraph.h 261 NETGRAPH_FRAME_RELAY opt_netgraph.h 262 NETGRAPH_HOLE opt_netgraph.h 263 NETGRAPH_IFACE opt_netgraph.h 264 NETGRAPH_KSOCKET opt_netgraph.h 265 NETGRAPH_LMI opt_netgraph.h 266 NETGRAPH_PPP opt_netgraph.h 267 NETGRAPH_PPPOE opt_netgraph.h 268 NETGRAPH_PPTPGRE opt_netgraph.h 269 NETGRAPH_RFC1490 opt_netgraph.h 270 NETGRAPH_SOCKET opt_netgraph.h 271 NETGRAPH_TEE opt_netgraph.h 272 NETGRAPH_TTY opt_netgraph.h 273 NETGRAPH_UI opt_netgraph.h 274 NETGRAPH_VJC opt_netgraph.h 275 276 # ATM (HARP version) 277 ATM_CORE opt_atm.h 278 ATM_IP opt_atm.h 279 ATM_SIGPVC opt_atm.h 280 ATM_SPANS opt_atm.h 281 ATM_UNI opt_atm.h 282 283 # XXX Conflict: # of devices vs network protocol (Native ATM). 284 # This makes "atm.h" unusable. 285 NATM opt_natm.h 286 287 DPT_ALLOW_MEMIO opt_dpt.h # Allow PCI devices to use memory 288 # mapped I/O 289 # DPT driver debug flags 290 DPT_VERIFY_HINTR opt_dpt.h 291 DPT_USE_SINTR opt_dpt.h 292 DPT_RESTRICTED_FREELIST opt_dpt.h 293 DPT_MEASURE_PERFORMANCE opt_dpt.h 294 DPT_FREELIST_IS_STACK opt_dpt.h 295 DPT_HANDLE_TIMEOUTS opt_dpt.h 296 DPT_TIMEOUT_FACTOR opt_dpt.h 297 DPT_INTR_DELAY opt_dpt.h 298 DPT_LOST_IRQ opt_dpt.h 299 DPT_SHUTDOWN_SLEEP opt_dpt.h 300 DPT_RESET_HBA opt_dpt.h 301 302 # Misc debug flags. Most of these should probably be replaced with 303 # 'DEBUG', and then let people recompile just the interesting modules 304 # with 'make CC="cc -DDEBUG'. 305 CLUSTERDEBUG opt_debug_cluster.h 306 DEBUG_1284 opt_ppb_1284.h 307 PERIPH_1284 opt_ppb_1284.h 308 DONTPROBE_1284 opt_ppb_1284.h 309 VP0_DEBUG opt_vpo.h 310 LPT_DEBUG opt_lpt.h 311 PLIP_DEBUG opt_plip.h 312 LOCKF_DEBUG opt_debug_lockf.h 313 LOUTB opt_debug_outb.h 314 NPX_DEBUG opt_debug_npx.h 315 NETATALKDEBUG opt_atalk.h 316 NULLFS_DIAGNOSTIC opt_debug_nullfs.h 317 SI_DEBUG opt_debug_si.h 318 319 # smbus related options 320 ENABLE_ALART opt_intpm.h 321 322 # These cause changes all over the kernel 323 DEBUG opt_global.h 324 DEBUG_LOCKS opt_global.h 325 DEBUG_VFS_LOCKS opt_global.h 326 DIAGNOSTIC opt_global.h 327 ENABLE_VFS_IOOPT opt_global.h 328 INVARIANT_SUPPORT opt_global.h 329 INVARIANTS opt_global.h 330 SIMPLELOCK_DEBUG opt_global.h 331 VFS_BIO_DEBUG opt_global.h 332 333 # These are VM related options 334 VM_KMEM_SIZE opt_vm.h 335 VM_KMEM_SIZE_SCALE opt_vm.h 336 VM_KMEM_SIZE_MAX opt_vm.h 337 NO_SWAPPING opt_vm.h 338 PQ_NOOPT opt_vmpage.h 339 PQ_NORMALCACHE opt_vmpage.h 340 PQ_MEDIUMCACHE opt_vmpage.h 341 PQ_LARGECACHE opt_vmpage.h 342 PQ_HUGECACHE opt_vmpage.h 343 344 # Standard SMP options 345 SMP opt_global.h 346 NCPU opt_smp.h 347 NBUS opt_smp.h 348 349 # sys/netkey 350 KEY 351 KEY_DEBUG opt_key.h 352 353 # Size of the kernel message buffer 354 MSGBUF_SIZE opt_msgbuf.h 355 356 # PCI related options 357 PCI_QUIET opt_pci.h 358 359 # NFS options 360 NFS_MINATTRTIMO opt_nfs.h 361 NFS_MAXATTRTIMO opt_nfs.h 362 NFS_MINDIRATTRTIMO opt_nfs.h 363 NFS_MAXDIRATTRTIMO opt_nfs.h 364 NFS_GATHERDELAY opt_nfs.h 365 NFS_UIDHASHSIZ opt_nfs.h 366 NFS_WDELAYHASHSIZ opt_nfs.h 367 NFS_MUIDHASHSIZ opt_nfs.h 368 NFS_NOSERVER opt_nfs.h 369 NFS_DEBUG opt_nfs.h 370 371 # For the Bt848/Bt848A/Bt849/Bt878/Bt879 driver 372 OVERRIDE_CARD opt_bktr.h #Override the bootup card detection 373 OVERRIDE_TUNER opt_bktr.h #Override the bootup tuner detection 374 OVERRIDE_DBX opt_bktr.h #Override the bootup DBX detection 375 OVERRIDE_MSP opt_bktr.h #Override the bootup MSP detection 376 BROOKTREE_SYSTEM_DEFAULT opt_bktr.h #Set to BROOKTREE_PAL or BROOKTREE_NTSC 377 #can prevent hang with Captivator card 378 BKTR_USE_PLL opt_bktr.h #Use PLL mode for PAL users 379 #handy for newer bt878 cards for PAL 380 BKTR_GPIO_ACCESS opt_bktr.h #Enable IOCTLs which give user level 381 #access to the GPIO port. 382 BKTR_NO_MSP_RESET opt_bktr.h #Prevent MSP34xx reset. Handy if you 383 #initialise the chip in another OS first 384 BKTR_430_FX_MODE opt_bktr.h #Switch Bt878 cards into Intel 430FX 385 #chipset compatibility mode 386 BKTR_SIS_VIA_MODE opt_bktr.h #Switch Bt878 cards into SIS/VIA chipset 387 #compatibility mode. Good for older 388 #SiS/VIA chipsets, older OPTi chipsets 389 #and those with bad PCI 2.1 support. 390 #As a rough guess, old = before mid 1998 391 392 # meteor opt_meteor.h 393 METEOR_ALLOC_PAGES opt_meteor.h 394 METEOR_TEST_VIDEO opt_meteor.h 395 METEOR_SYSTEM_DEFAULT opt_meteor.h 396 METEOR_DEALLOC_PAGES opt_meteor.h 397 METEOR_DEALLOC_ABOVE opt_meteor.h 398 399 # Include tweaks for running under the SimOS machine simulator. 400 SIMOS opt_simos.h 401 402 # options for bus/device framework 403 BUS_DEBUG opt_bus.h 404 405 # options for USB support 406 UHCI_DEBUG opt_usb.h 407 OHCI_DEBUG opt_usb.h 408 USB_DEBUG opt_usb.h 409 UGEN_DEBUG opt_usb.h 410 UHID_DEBUG opt_usb.h 411 UHUB_DEBUG opt_usb.h 412 UKBD_DEBUG opt_usb.h 413 ULPT_DEBUG opt_usb.h 414 UMS_DEBUG opt_usb.h 415 416 # Vinum options 417 VINUMDEBUG opt_vinum.h 418 419 # Include LKM compatability module 420 LKM 421 422 # Embedded system options 423 INIT_PATH opt_init_path.h
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