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 1.22 2004/06/24 08:15:11 dillon Exp $
4 # On the handling of kernel options
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
15 # All new options shall also be listed in either "conf/options" or
16 # "<machine>/conf/options.<machine>". 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.
25 # This handling scheme is not yet fully implemented.
28 # Format of this file:
29 # Option name filename
31 # If filename is missing, the default is
32 # opt_<name-of-option-in-lower-case>.h
34 # Adaptec Array Controller driver options
35 AAC_COMPAT_LINUX opt_aac.h # Enable the linux ioctl interface
37 AAC_DEBUG opt_aac.h # Debugging levels:
38 # 0 - quiet, only emit warnings
39 # 1 - noisy, emit major function
40 # points and things done
41 # 2 - extremely noisy, emit trace
42 # items in loops, etc.
44 # Adaptec aic7xxx SCSI controller options
45 AHC_ALLOW_MEMIO opt_aic7xxx.h # Allow PCI devices to use memory
48 AHC_TMODE_ENABLE opt_aic7xxx.h # Bitmap of units to enable
49 # targetmode operations.
51 AHC_DUMP_EEPROM opt_aic7xxx.h # Dump the contents of our
54 AHC_DEBUG opt_aic7xxx.h # Compile in Aic7xxx Debugging code.
56 AHC_DEBUG_OPTS opt_aic7xxx.h # Aic7xxx driver debugging options.
57 # See sys/dev/aic7xxx/aic7xxx.h
59 AHC_REG_PRETTY_PRINT opt_aic7xxx.h # Print register bitfields in debug
60 # output. Adds ~15k to driver.
62 # Adaptec aic79xx SCSI controller options
63 AHD_DEBUG opt_aic79xx.h # Compile in Aic79xx Debugging code.
65 AHD_DEBUG_OPTS opt_aic79xx.h # Aic79xx driver debugging options.
66 # See sys/dev/aic7xxx/aic79xx.h
68 AHD_TMODE_ENABLE opt_aic79xx.h # Bitmap of units to enable
69 # targetmode operations.
71 AHD_REG_PRETTY_PRINT opt_aic79xx.h # Print register bitfields in debug
72 # output. Adds ~15k to driver.
74 ADW_ALLOW_MEMIO opt_adw.h # Allow PCI devices to use memory
77 TWA_FLASH_FIREWARE opt_twa.h
79 #options for ACPI support
81 ACPI_NO_SEMAPHORES opt_acpi.h
82 ACPI_MAX_THREADS opt_acpi.h
84 # Miscellaneous options.
85 COMPAT_43 opt_compat.h
86 COMPAT_SUNOS opt_compat.h
87 COMPILING_LINT opt_lint.h
91 DDB_UNATTENDED opt_ddb.h
92 GDB_REMOTE_CHAT opt_ddb.h
100 MFS_ROOT_SIZE opt_mfs.h
101 NTIMECOUNTER opt_ntp.h
103 NSWBUF_MIN opt_swap.h
107 SUIDDIR opt_suiddir.h
108 SYSVMSG opt_sysvipc.h
109 SYSVSEM opt_sysvipc.h
110 SYSVSHM opt_sysvipc.h
113 SHMMAXPGS opt_sysvipc.h
132 DIRECTIO opt_directio.h
134 # POSIX kernel options
136 _KPOSIX_PRIORITY_SCHEDULING opt_posix.h
137 _KPOSIX_VERSION opt_posix.h
139 # Do we want the config file compiled into the kernel?
140 INCLUDE_CONFIG_FILE opt_config.h
142 # Options for static file systems. These should only be used at config
143 # time, since the corresponding lkms cannot work if there are any static
144 # dependencies. Unusability is enforced by hiding the defines for the
145 # options in a never-included header.
150 MSDOSFS opt_dontuse.h
158 # These static filesystems has one slightly bogus static dependency in
159 # sys/i386/i386/autoconf.c. If any of these filesystems are
160 # statically compiled into the kernel, code for mounting them as root
161 # filesystems will be enabled - but look below. Boot-code is purposely
162 # unavailable for the LKM-based versions.
169 # If you are following the conditions in the copyright,
170 # you can enable soft-updates which will speed up a lot of thigs
171 # and make the system safer from crashes at the same time.
172 # otherwise a STUB module will be compiled in.
173 SOFTUPDATES opt_ffs.h
175 # Enable fast hash lookups for large directories on UFS-based filesystems.
176 UFS_DIRHASH opt_ufs.h
178 # The above static dependencies are planned removed, with a
179 # <filesystem>_ROOT option to control if it usable as root. This list
180 # allows these options to be present in config files already (though
181 # they won't make any difference yet).
182 CD9660_ROOT opt_cd9660.h
184 NFS_ROOT opt_nfsroot.h
186 # The union static file system has bogus static dependencies, so it isn't
190 # Options used only in subr_param.c.
194 NMBCLUSTERS opt_param.h
197 VM_BCACHE_SIZE_MAX opt_param.h
198 VM_SWZONE_SIZE_MAX opt_param.h
204 # Generic SCSI options.
205 CAM_MAX_HIGHPOWER opt_cam.h
207 CAM_DEBUG_DELAY opt_cam.h
208 CAM_DEBUG_BUS opt_cam.h
209 CAM_DEBUG_TARGET opt_cam.h
210 CAM_DEBUG_LUN opt_cam.h
211 CAM_DEBUG_FLAGS opt_cam.h
212 SCSI_DELAY opt_scsi.h
213 SCSI_NO_SENSE_STRINGS opt_scsi.h
214 SCSI_NO_OP_STRINGS opt_scsi.h
216 # Options used only in cam/scsi/scsi_cd.c
217 CHANGER_MIN_BUSY_SECONDS opt_cd.h
218 CHANGER_MAX_BUSY_SECONDS opt_cd.h
220 # Options used only in cam/scsi/scsi_sa.c.
221 SA_IO_TIMEOUT opt_sa.h
222 SA_SPACE_TIMEOUT opt_sa.h
223 SA_REWIND_TIMEOUT opt_sa.h
224 SA_ERASE_TIMEOUT opt_sa.h
225 SA_1FM_AT_EOD opt_sa.h
227 # Options used only in cam/scsi/scsi_pt.c
228 SCSI_PT_DEFAULT_TIMEOUT opt_pt.h
230 # Options used only in cam/scsi/scsi_ses.c
231 SES_ENABLE_PASSTHROUGH opt_ses.h
233 # Options used in dev/sym/ (Symbios SCSI driver).
234 SYM_SETUP_LP_PROBE_MAP opt_sym.h #-Low Priority Probe Map (bits)
235 # Allows the ncr to take precedence
236 # 1 (1<<0) -> 810a, 860
237 # 2 (1<<1) -> 825a, 875, 885, 895
238 # 4 (1<<2) -> 895a, 896, 1510d
239 SYM_SETUP_SCSI_DIFF opt_sym.h #-HVD support for 825a, 875, 885
240 # disabled:0 (default), enabled:1
241 SYM_SETUP_PCI_PARITY opt_sym.h #-PCI parity checking
242 # disabled:0, enabled:1 (default)
243 SYM_SETUP_MAX_LUN opt_sym.h #-Number of LUNs supported
244 # default:8, range:[1..64]
246 # Options used only in pci/ncr.c
247 SCSI_NCR_DEBUG opt_ncr.h
248 SCSI_NCR_MAX_SYNC opt_ncr.h
249 SCSI_NCR_MAX_WIDE opt_ncr.h
250 SCSI_NCR_MYADDR opt_ncr.h
252 # Options used only in pci/isp_pci.c
253 ISP_TARGET_MODE opt_isp.h
255 # Options used in the 'ata' ATA/ATAPI driver
256 ATA_STATIC_ID opt_ata.h
262 BOOTP_COMPAT opt_bootp.h
263 BOOTP_NFSROOT opt_bootp.h
264 BOOTP_NFSV3 opt_bootp.h
265 BOOTP_WIRED_TO opt_bootp.h
271 MROUTING opt_mrouting.h
276 IPSEC_ESP opt_ipsec.h
277 IPSEC_DEBUG opt_ipsec.h
278 IPSEC_FILTERGIF opt_ipsec.h
279 FAST_IPSEC opt_ipsec.h
282 IPFILTER opt_ipfilter.h
283 IPFILTER_LOG opt_ipfilter.h
284 IPFILTER_DEFAULT_BLOCK opt_ipfilter.h
285 IPFIREWALL opt_ipfw.h
287 IPFIREWALL_VERBOSE opt_ipfw.h
288 IPFIREWALL_VERBOSE_LIMIT opt_ipfw.h
289 IPFIREWALL_DEFAULT_TO_ACCEPT opt_ipfw.h
290 IPFIREWALL_FORWARD opt_ipfw.h
291 IPV6FIREWALL opt_ip6fw.h
292 IPV6FIREWALL_VERBOSE opt_ip6fw.h
293 IPV6FIREWALL_VERBOSE_LIMIT opt_ip6fw.h
294 IPV6FIREWALL_DEFAULT_TO_ACCEPT opt_ip6fw.h
303 PPP_BSDCOMP opt_ppp.h
304 PPP_DEFLATE opt_ppp.h
307 SLIP_IFF_OPTS opt_slip.h
309 TCP_DROP_SYNFIN opt_tcp_input.h
312 MBUF_STRESS_TEST opt_mbuf_stress_test.h
314 # Netgraph(4). Use option NETGRAPH to enable the base netgraph code.
315 # Each netgraph node type can be either be compiled into the kernel
316 # or loaded dynamically. To get the former, include the corresponding
317 # option below. Each type has its own man page, e.g. ng_async(8).
319 NETGRAPH_ASYNC opt_netgraph.h
320 NETGRAPH_BPF opt_netgraph.h
321 NETGRAPH_BRIDGE opt_netgraph.h
322 NETGRAPH_CISCO opt_netgraph.h
323 NETGRAPH_ECHO opt_netgraph.h
324 NETGRAPH_ETHER opt_netgraph.h
325 NETGRAPH_FRAME_RELAY opt_netgraph.h
326 NETGRAPH_HOLE opt_netgraph.h
327 NETGRAPH_IFACE opt_netgraph.h
328 NETGRAPH_KSOCKET opt_netgraph.h
329 NETGRAPH_LMI opt_netgraph.h
330 NETGRAPH_L2TP opt_netgraph.h
331 # MPPC compression requires proprietary files (not included)
332 NETGRAPH_MPPC_COMPRESSION opt_netgraph.h
333 NETGRAPH_MPPC_ENCRYPTION opt_netgraph.h
334 NETGRAPH_ONE2MANY opt_netgraph.h
335 NETGRAPH_PPP opt_netgraph.h
336 NETGRAPH_PPPOE opt_netgraph.h
337 NETGRAPH_PPTPGRE opt_netgraph.h
338 NETGRAPH_RFC1490 opt_netgraph.h
339 NETGRAPH_SOCKET opt_netgraph.h
340 NETGRAPH_TEE opt_netgraph.h
341 NETGRAPH_TTY opt_netgraph.h
342 NETGRAPH_UI opt_netgraph.h
343 NETGRAPH_VJC opt_netgraph.h
355 # XXX Conflict: # of devices vs network protocol (Native ATM).
356 # This makes "atm.h" unusable.
359 DPT_ALLOW_MEMIO opt_dpt.h # Allow PCI devices to use memory
361 # DPT driver debug flags
362 DPT_MEASURE_PERFORMANCE opt_dpt.h
363 DPT_HANDLE_TIMEOUTS opt_dpt.h
364 DPT_TIMEOUT_FACTOR opt_dpt.h
365 DPT_LOST_IRQ opt_dpt.h
366 DPT_RESET_HBA opt_dpt.h
368 # Adaptec ASR and DPT V/VI controller options
369 ASR_MEASURE_PERFORMANCE opt_asr.h
371 # Misc debug flags. Most of these should probably be replaced with
372 # 'DEBUG', and then let people recompile just the interesting modules
373 # with 'make CC="cc -DDEBUG"'.
374 CLUSTERDEBUG opt_debug_cluster.h
375 DEBUG_1284 opt_ppb_1284.h
378 PLIP_DEBUG opt_plip.h
379 LOCKF_DEBUG opt_debug_lockf.h
380 LOUTB opt_debug_outb.h
381 NPX_DEBUG opt_debug_npx.h
382 NETATALKDEBUG opt_atalk.h
383 SI_DEBUG opt_debug_si.h
387 FB_INSTALL_CDEV opt_fb.h
389 # ppbus related options
390 PERIPH_1284 opt_ppb_1284.h
391 DONTPROBE_1284 opt_ppb_1284.h
393 # smbus related options
394 ENABLE_ALART opt_intpm.h
396 # These cause changes all over the kernel
397 BLKDEV_IOSIZE opt_global.h
399 DEBUG_LOCKS opt_global.h
400 DEBUG_VFS_LOCKS opt_global.h
401 DIAGNOSTIC opt_global.h
402 ENABLE_VFS_IOOPT opt_global.h
403 INVARIANT_SUPPORT opt_global.h
404 INVARIANTS opt_global.h
405 SIMPLELOCK_DEBUG opt_global.h
406 VFS_BIO_DEBUG opt_global.h
407 DEBUG_INTERRUPTS opt_global.h
409 # These are VM related options
410 VM_KMEM_SIZE opt_vm.h
411 VM_KMEM_SIZE_SCALE opt_vm.h
412 VM_KMEM_SIZE_MAX opt_vm.h
414 PQ_CACHESIZE opt_vmpage.h
416 # Standard SMP options
422 # Size of the kernel message buffer
423 MSGBUF_SIZE opt_msgbuf.h
425 # PCI related options
427 PCI_ENABLE_IO_MODES opt_pci.h
431 NFS_MINATTRTIMO opt_nfs.h
432 NFS_MAXATTRTIMO opt_nfs.h
433 NFS_MINDIRATTRTIMO opt_nfs.h
434 NFS_MAXDIRATTRTIMO opt_nfs.h
435 NFS_GATHERDELAY opt_nfs.h
436 NFS_UIDHASHSIZ opt_nfs.h
437 NFS_WDELAYHASHSIZ opt_nfs.h
438 NFS_MUIDHASHSIZ opt_nfs.h
439 NFS_NOSERVER opt_nfs.h
442 # For the Bt848/Bt848A/Bt849/Bt878/Bt879 driver
443 BROOKTREE_SYSTEM_DEFAULT opt_bktr.h
444 BROOKTREE_ALLOC_PAGES opt_bktr.h
445 BKTR_OVERRIDE_CARD opt_bktr.h
446 BKTR_OVERRIDE_TUNER opt_bktr.h
447 BKTR_OVERRIDE_DBX opt_bktr.h
448 BKTR_OVERRIDE_MSP opt_bktr.h
449 BKTR_SYSTEM_DEFAULT opt_bktr.h
450 BKTR_ALLOC_PAGES opt_bktr.h
451 BKTR_USE_PLL opt_bktr.h
452 BKTR_GPIO_ACCESS opt_bktr.h
453 BKTR_NO_MSP_RESET opt_bktr.h
454 BKTR_430_FX_MODE opt_bktr.h
455 BKTR_SIS_VIA_MODE opt_bktr.h
456 BKTR_NEW_MSP34XX_DRIVER opt_bktr.h
458 # meteor opt_meteor.h
459 METEOR_ALLOC_PAGES opt_meteor.h
460 METEOR_TEST_VIDEO opt_meteor.h
461 METEOR_SYSTEM_DEFAULT opt_meteor.h
462 METEOR_DEALLOC_PAGES opt_meteor.h
463 METEOR_DEALLOC_ABOVE opt_meteor.h
465 # Various mi ISA bus flags
466 COMPAT_OLDISA opt_compat_oldisa.h
468 COM_MULTIPORT opt_sio.h
469 BREAK_TO_DEBUGGER opt_comconsole.h
470 ALT_BREAK_TO_DEBUGGER opt_comconsole.h
472 # Include tweaks for running under the SimOS machine simulator.
475 # options for bus/device framework
477 DEVICE_SYSCTLS opt_bus.h
479 # options for USB support
488 UMASS_DEBUG opt_usb.h
492 VINUMDEBUG opt_vinum.h
494 # Embedded system options
495 UKBD_DFLT_KEYMAP opt_ukbd.h
496 INIT_PATH opt_init_path.h
498 ROOTDEVNAME opt_rootdevname.h
501 PCFCLOCK_VERBOSE opt_pcfclock.h
502 PCFCLOCK_MAX_RETRIES opt_pcfclock.h
504 # Polling device handling
505 DEVICE_POLLING opt_global.h
507 # options for ubsec driver
508 UBSEC_DEBUG opt_ubsec.h
509 UBSEC_RNDTEST opt_ubsec.h
510 UBSEC_NO_RNG opt_ubsec.h
512 # options for hifn driver
513 HIFN_DEBUG opt_hifn.h
514 HIFN_RNDTEST opt_hifn.h
515 HIFN_NO_RNG opt_hifn.h
518 ED_NO_MIIBUS opt_ed.h