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freebsd-skq/sys/conf/options
Alexander V. Chernikov f5baf8bb12 Add modular fib lookup framework. 
This change introduces framework that allows to dynamically
 attach or detach longest prefix match (lpm) lookup algorithms
 to speed up datapath route tables lookups.

Framework takes care of handling initial synchronisation,
 route subscription, nhop/nhop groups reference and indexing,
 dataplane attachments and fib instance algorithm setup/teardown.
Framework features automatic algorithm selection, allowing for
 picking the best matching algorithm on-the-fly based on the
 amount of routes in the routing table.

Currently framework code is guarded under FIB_ALGO config option.
An idea is to enable it by default in the next couple of weeks.

The following algorithms are provided by default:
IPv4:
* bsearch4 (lockless binary search in a special IP array), tailored for
  small-fib (<16 routes)
* radix4_lockless (lockless immutable radix, re-created on every rtable change),
  tailored for small-fib (<1000 routes)
* radix4 (base system radix backend)
* dpdk_lpm4 (DPDK DIR24-8-based lookups), lockless datastrucure, optimized
  for large-fib (D27412)
IPv6:
* radix6_lockless (lockless immutable radix, re-created on every rtable change),
  tailed for small-fib (<1000 routes)
* radix6 (base system radix backend)
* dpdk_lpm6 (DPDK DIR24-8-based lookups), lockless datastrucure, optimized
  for large-fib (D27412)

Performance changes:
Micro benchmarks (I7-7660U, single-core lookups, 2048k dst, code in D27604):
IPv4:
8 routes:
  radix4: ~20mpps
  radix4_lockless: ~24.8mpps
  bsearch4: ~69mpps
  dpdk_lpm4: ~67 mpps
700k routes:
  radix4_lockless: 3.3mpps
  dpdk_lpm4: 46mpps

IPv6:
8 routes:
  radix6_lockless: ~20mpps
  dpdk_lpm6: ~70mpps
100k routes:
  radix6_lockless: 13.9mpps
  dpdk_lpm6: 57mpps

Forwarding benchmarks:
+ 10-15% IPv4 forwarding performance (small-fib, bsearch4)
+ 25% IPv4 forwarding performance (full-view, dpdk_lpm4)
+ 20% IPv6 forwarding performance (full-view, dpdk_lpm6)

Control:
Framwork adds the following runtime sysctls:

List algos
* net.route.algo.inet.algo_list: bsearch4, radix4_lockless, radix4
* net.route.algo.inet6.algo_list: radix6_lockless, radix6, dpdk_lpm6
Debug level (7=LOG_DEBUG, per-route)
net.route.algo.debug_level: 5
Algo selection (currently only for fib 0):
net.route.algo.inet.algo: bsearch4
net.route.algo.inet6.algo: radix6_lockless

Support for manually changing algos in non-default fib will be added
soon. Some sysctl names will be changed in the near future.

Differential Revision: https://reviews.freebsd.org/D27401
2020-12-25 11:33:17 +00:00

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# $FreeBSD$
#
# On the handling of kernel options
#
# All kernel options should be listed in NOTES, with suitable
# descriptions. Negative options (options that make some code not
# compile) should be commented out; LINT (generated from NOTES) should
# compile as much code as possible. Try to structure option-using
# code so that a single option only switch code on, or only switch
# code off, to make it possible to have a full compile-test. If
# necessary, you can check for COMPILING_LINT to get maximum code
# coverage.
#
# All new options shall also be listed in either "conf/options" or
# "conf/options.<machine>". Options that affect a single source-file
# <xxx>.[c|s] should be directed into "opt_<xxx>.h", while options
# that affect multiple files should either go in "opt_global.h" if
# this is a kernel-wide option (used just about everywhere), or in
# "opt_<option-name-in-lower-case>.h" if it affects only some files.
# Note that the effect of listing only an option without a
# header-file-name in conf/options (and cousins) is that the last
# convention is followed.
#
# This handling scheme is not yet fully implemented.
#
#
# Format of this file:
# Option name filename
#
# If filename is missing, the default is
# opt_<name-of-option-in-lower-case>.h
AAC_DEBUG opt_aac.h
AACRAID_DEBUG opt_aacraid.h
AHC_ALLOW_MEMIO opt_aic7xxx.h
AHC_TMODE_ENABLE opt_aic7xxx.h
AHC_DUMP_EEPROM opt_aic7xxx.h
AHC_DEBUG opt_aic7xxx.h
AHC_DEBUG_OPTS opt_aic7xxx.h
AHC_REG_PRETTY_PRINT opt_aic7xxx.h
AHD_DEBUG opt_aic79xx.h
AHD_DEBUG_OPTS opt_aic79xx.h
AHD_TMODE_ENABLE opt_aic79xx.h
AHD_REG_PRETTY_PRINT opt_aic79xx.h
TWA_DEBUG opt_twa.h
# Debugging options.
ALT_BREAK_TO_DEBUGGER opt_kdb.h
BREAK_TO_DEBUGGER opt_kdb.h
BUF_TRACKING opt_global.h
DDB
DDB_BUFR_SIZE opt_ddb.h
DDB_CAPTURE_DEFAULTBUFSIZE opt_ddb.h
DDB_CAPTURE_MAXBUFSIZE opt_ddb.h
DDB_CTF opt_ddb.h
DDB_NUMSYM opt_ddb.h
EARLY_PRINTF opt_global.h
FULL_BUF_TRACKING opt_global.h
GDB
KDB opt_global.h
KDB_TRACE opt_kdb.h
KDB_UNATTENDED opt_kdb.h
KLD_DEBUG opt_kld.h
NUM_CORE_FILES opt_global.h
QUEUE_MACRO_DEBUG_TRACE opt_global.h
QUEUE_MACRO_DEBUG_TRASH opt_global.h
SYSCTL_DEBUG opt_sysctl.h
TEXTDUMP_PREFERRED opt_ddb.h
TEXTDUMP_VERBOSE opt_ddb.h
TSLOG opt_global.h
TSLOGSIZE opt_global.h
# Miscellaneous options.
ALQ
ALTERA_SDCARD_FAST_SIM opt_altera_sdcard.h
ATSE_CFI_HACK opt_cfi.h
AUDIT opt_global.h
BOOTHOWTO opt_global.h
BOOTVERBOSE opt_global.h
CALLOUT_PROFILING
CAPABILITIES opt_capsicum.h
CAPABILITY_MODE opt_capsicum.h
COMPAT_43 opt_global.h
COMPAT_43TTY opt_global.h
COMPAT_FREEBSD4 opt_global.h
COMPAT_FREEBSD5 opt_global.h
COMPAT_FREEBSD6 opt_global.h
COMPAT_FREEBSD7 opt_global.h
COMPAT_FREEBSD9 opt_global.h
COMPAT_FREEBSD10 opt_global.h
COMPAT_FREEBSD11 opt_global.h
COMPAT_FREEBSD12 opt_global.h
COMPAT_CLOUDABI32 opt_dontuse.h
COMPAT_CLOUDABI64 opt_dontuse.h
COMPAT_LINUXKPI opt_dontuse.h
_COMPAT_LINUX32 opt_compat.h # XXX: make sure opt_compat.h exists
COMPILING_LINT opt_global.h
CY_PCI_FASTINTR
DEADLKRES opt_watchdog.h
EXPERIMENTAL opt_global.h
EXT_RESOURCES opt_global.h
DIRECTIO
FILEMON opt_dontuse.h
FFCLOCK
FULL_PREEMPTION opt_sched.h
GZIO opt_gzio.h
IMAGACT_BINMISC opt_dontuse.h
IPI_PREEMPTION opt_sched.h
GEOM_BDE opt_geom.h
GEOM_CACHE opt_geom.h
GEOM_CONCAT opt_geom.h
GEOM_ELI opt_geom.h
GEOM_GATE opt_geom.h
GEOM_JOURNAL opt_geom.h
GEOM_LABEL opt_geom.h
GEOM_LABEL_GPT opt_geom.h
GEOM_LINUX_LVM opt_geom.h
GEOM_MAP opt_geom.h
GEOM_MIRROR opt_geom.h
GEOM_MOUNTVER opt_geom.h
GEOM_MULTIPATH opt_geom.h
GEOM_NOP opt_geom.h
GEOM_PART_APM opt_geom.h
GEOM_PART_BSD opt_geom.h
GEOM_PART_BSD64 opt_geom.h
GEOM_PART_EBR opt_geom.h
GEOM_PART_GPT opt_geom.h
GEOM_PART_LDM opt_geom.h
GEOM_PART_MBR opt_geom.h
GEOM_PART_VTOC8 opt_geom.h
GEOM_RAID opt_geom.h
GEOM_RAID3 opt_geom.h
GEOM_SHSEC opt_geom.h
GEOM_STRIPE opt_geom.h
GEOM_UZIP opt_geom.h
GEOM_UZIP_DEBUG opt_geom.h
GEOM_VINUM opt_geom.h
GEOM_VIRSTOR opt_geom.h
GEOM_ZERO opt_geom.h
IFLIB opt_iflib.h
KDTRACE_HOOKS opt_global.h
KDTRACE_FRAME opt_kdtrace.h
KN_HASHSIZE opt_kqueue.h
KSTACK_MAX_PAGES
KSTACK_PAGES
KSTACK_USAGE_PROF
KTRACE
KTRACE_REQUEST_POOL opt_ktrace.h
LIBICONV
MAC opt_global.h
MAC_BIBA opt_dontuse.h
MAC_BSDEXTENDED opt_dontuse.h
MAC_IFOFF opt_dontuse.h
MAC_LOMAC opt_dontuse.h
MAC_MLS opt_dontuse.h
MAC_NONE opt_dontuse.h
MAC_NTPD opt_dontuse.h
MAC_PARTITION opt_dontuse.h
MAC_PORTACL opt_dontuse.h
MAC_SEEOTHERUIDS opt_dontuse.h
MAC_STATIC opt_mac.h
MAC_STUB opt_dontuse.h
MAC_TEST opt_dontuse.h
MAC_VERIEXEC opt_dontuse.h
MAC_VERIEXEC_SHA1 opt_dontuse.h
MAC_VERIEXEC_SHA256 opt_dontuse.h
MAC_VERIEXEC_SHA384 opt_dontuse.h
MAC_VERIEXEC_SHA512 opt_dontuse.h
MD_ROOT opt_md.h
MD_ROOT_FSTYPE opt_md.h
MD_ROOT_READONLY opt_md.h
MD_ROOT_SIZE opt_md.h
MD_ROOT_MEM opt_md.h
MFI_DEBUG opt_mfi.h
MFI_DECODE_LOG opt_mfi.h
MPROF_BUFFERS opt_mprof.h
MPROF_HASH_SIZE opt_mprof.h
NEW_PCIB opt_global.h
NO_ADAPTIVE_MUTEXES opt_adaptive_mutexes.h
NO_ADAPTIVE_RWLOCKS
NO_ADAPTIVE_SX
NO_OBSOLETE_CODE opt_global.h
NO_SYSCTL_DESCR opt_global.h
NSWBUF_MIN opt_param.h
MBUF_PACKET_ZONE_DISABLE opt_global.h
PANIC_REBOOT_WAIT_TIME opt_panic.h
PCI_HP opt_pci.h
PCI_IOV opt_global.h
PPC_DEBUG opt_ppc.h
PPC_PROBE_CHIPSET opt_ppc.h
PPS_SYNC opt_ntp.h
PREEMPTION opt_sched.h
QUOTA
SCHED_4BSD opt_sched.h
SCHED_STATS opt_sched.h
SCHED_ULE opt_sched.h
SLEEPQUEUE_PROFILING
SLHCI_DEBUG opt_slhci.h
STACK opt_stack.h
SUIDDIR
MSGMNB opt_sysvipc.h
MSGMNI opt_sysvipc.h
MSGSEG opt_sysvipc.h
MSGSSZ opt_sysvipc.h
MSGTQL opt_sysvipc.h
SEMMNI opt_sysvipc.h
SEMMNS opt_sysvipc.h
SEMMNU opt_sysvipc.h
SEMMSL opt_sysvipc.h
SEMOPM opt_sysvipc.h
SEMUME opt_sysvipc.h
SHMALL opt_sysvipc.h
SHMMAX opt_sysvipc.h
SHMMAXPGS opt_sysvipc.h
SHMMIN opt_sysvipc.h
SHMMNI opt_sysvipc.h
SHMSEG opt_sysvipc.h
SYSVMSG opt_sysvipc.h
SYSVSEM opt_sysvipc.h
SYSVSHM opt_sysvipc.h
SW_WATCHDOG opt_watchdog.h
TCPHPTS opt_inet.h
TURNSTILE_PROFILING
UMTX_PROFILING
UMTX_CHAINS opt_global.h
VERBOSE_SYSINIT
ZSTDIO opt_zstdio.h
# Sanitizers
COVERAGE opt_global.h
KCOV
KCSAN opt_global.h
KUBSAN opt_global.h
# POSIX kernel options
P1003_1B_MQUEUE opt_posix.h
P1003_1B_SEMAPHORES opt_posix.h
_KPOSIX_PRIORITY_SCHEDULING opt_posix.h
# Do we want the config file compiled into the kernel?
INCLUDE_CONFIG_FILE opt_config.h
# Options for static filesystems. These should only be used at config
# time, since the corresponding lkms cannot work if there are any static
# dependencies. Unusability is enforced by hiding the defines for the
# options in a never-included header.
AUTOFS opt_dontuse.h
CD9660 opt_dontuse.h
EXT2FS opt_dontuse.h
FDESCFS opt_dontuse.h
FFS opt_dontuse.h
FUSEFS opt_dontuse.h
MSDOSFS opt_dontuse.h
NULLFS opt_dontuse.h
PROCFS opt_dontuse.h
PSEUDOFS opt_dontuse.h
SMBFS opt_dontuse.h
TMPFS opt_dontuse.h
UDF opt_dontuse.h
UNIONFS opt_dontuse.h
ZFS opt_dontuse.h
# Pseudofs debugging
PSEUDOFS_TRACE opt_pseudofs.h
# In-kernel GSS-API
KGSSAPI opt_kgssapi.h
KGSSAPI_DEBUG opt_kgssapi.h
# These static filesystems have one slightly bogus static dependency in
# sys/i386/i386/autoconf.c. If any of these filesystems are
# statically compiled into the kernel, code for mounting them as root
# filesystems will be enabled - but look below.
# NFSCL - client
# NFSD - server
NFSCL opt_nfs.h
NFSD opt_nfs.h
# filesystems and libiconv bridge
CD9660_ICONV opt_dontuse.h
MSDOSFS_ICONV opt_dontuse.h
UDF_ICONV opt_dontuse.h
# If you are following the conditions in the copyright,
# you can enable soft-updates which will speed up a lot of thigs
# and make the system safer from crashes at the same time.
# otherwise a STUB module will be compiled in.
SOFTUPDATES opt_ffs.h
# On small, embedded systems, it can be useful to turn off support for
# snapshots. It saves about 30-40k for a feature that would be lightly
# used, if it is used at all.
NO_FFS_SNAPSHOT opt_ffs.h
# Enabling this option turns on support for Access Control Lists in UFS,
# which can be used to support high security configurations. Depends on
# UFS_EXTATTR.
UFS_ACL opt_ufs.h
# Enabling this option turns on support for extended attributes in UFS-based
# filesystems, which can be used to support high security configurations
# as well as new filesystem features.
UFS_EXTATTR opt_ufs.h
UFS_EXTATTR_AUTOSTART opt_ufs.h
# Enable fast hash lookups for large directories on UFS-based filesystems.
UFS_DIRHASH opt_ufs.h
# Enable gjournal-based UFS journal.
UFS_GJOURNAL opt_ufs.h
# The below sentence is not in English, and neither is this one.
# We plan to remove the static dependences above, with a
# <filesystem>_ROOT option to control if it usable as root. This list
# allows these options to be present in config files already (though
# they won't make any difference yet).
NFS_ROOT opt_nfsroot.h
# SMB/CIFS requester
NETSMB opt_netsmb.h
# Enable debugnet(4) networking support.
DEBUGNET opt_global.h
# Enable netdump(4) client support.
NETDUMP opt_global.h
# Enable netgdb(4) support.
NETGDB opt_global.h
# Options used only in subr_param.c.
HZ opt_param.h
MAXFILES opt_param.h
NBUF opt_param.h
NSFBUFS opt_param.h
VM_BCACHE_SIZE_MAX opt_param.h
VM_SWZONE_SIZE_MAX opt_param.h
MAXUSERS
DFLDSIZ opt_param.h
MAXDSIZ opt_param.h
MAXSSIZ opt_param.h
# Generic SCSI options.
CAM_MAX_HIGHPOWER opt_cam.h
CAMDEBUG opt_cam.h
CAM_DEBUG_COMPILE opt_cam.h
CAM_DEBUG_DELAY opt_cam.h
CAM_DEBUG_BUS opt_cam.h
CAM_DEBUG_TARGET opt_cam.h
CAM_DEBUG_LUN opt_cam.h
CAM_DEBUG_FLAGS opt_cam.h
CAM_BOOT_DELAY opt_cam.h
CAM_IOSCHED_DYNAMIC opt_cam.h
CAM_IO_STATS opt_cam.h
CAM_TEST_FAILURE opt_cam.h
SCSI_DELAY opt_scsi.h
SCSI_NO_SENSE_STRINGS opt_scsi.h
SCSI_NO_OP_STRINGS opt_scsi.h
# Options used only in cam/ata/ata_da.c
ATA_STATIC_ID opt_ada.h
# Options used only in cam/scsi/scsi_cd.c
CHANGER_MIN_BUSY_SECONDS opt_cd.h
CHANGER_MAX_BUSY_SECONDS opt_cd.h
# Options used only in cam/scsi/scsi_da.c
DA_TRACK_REFS opt_da.h
# Options used only in cam/scsi/scsi_sa.c.
SA_IO_TIMEOUT opt_sa.h
SA_SPACE_TIMEOUT opt_sa.h
SA_REWIND_TIMEOUT opt_sa.h
SA_ERASE_TIMEOUT opt_sa.h
SA_1FM_AT_EOD opt_sa.h
# Options used only in cam/scsi/scsi_pt.c
SCSI_PT_DEFAULT_TIMEOUT opt_pt.h
# Options used only in cam/scsi/scsi_ses.c
SES_ENABLE_PASSTHROUGH opt_ses.h
# Options used in dev/sym/ (Symbios SCSI driver).
SYM_SETUP_SCSI_DIFF opt_sym.h #-HVD support for 825a, 875, 885
# disabled:0 (default), enabled:1
SYM_SETUP_PCI_PARITY opt_sym.h #-PCI parity checking
# disabled:0, enabled:1 (default)
SYM_SETUP_MAX_LUN opt_sym.h #-Number of LUNs supported
# default:8, range:[1..64]
# Options used only in dev/isp/*
ISP_TARGET_MODE opt_isp.h
ISP_FW_CRASH_DUMP opt_isp.h
ISP_DEFAULT_ROLES opt_isp.h
ISP_INTERNAL_TARGET opt_isp.h
ISP_FCTAPE_OFF opt_isp.h
# Options used only in dev/iscsi
ISCSI_INITIATOR_DEBUG opt_iscsi_initiator.h
# Net stuff.
ACCEPT_FILTER_DATA
ACCEPT_FILTER_DNS
ACCEPT_FILTER_HTTP
ALTQ opt_global.h
ALTQ_CBQ opt_altq.h
ALTQ_CDNR opt_altq.h
ALTQ_CODEL opt_altq.h
ALTQ_DEBUG opt_altq.h
ALTQ_HFSC opt_altq.h
ALTQ_FAIRQ opt_altq.h
ALTQ_NOPCC opt_altq.h
ALTQ_PRIQ opt_altq.h
ALTQ_RED opt_altq.h
ALTQ_RIO opt_altq.h
BOOTP opt_bootp.h
BOOTP_BLOCKSIZE opt_bootp.h
BOOTP_COMPAT opt_bootp.h
BOOTP_NFSROOT opt_bootp.h
BOOTP_NFSV3 opt_bootp.h
BOOTP_WIRED_TO opt_bootp.h
DEVICE_POLLING
DUMMYNET opt_ipdn.h
RATELIMIT opt_ratelimit.h
RATELIMIT_DEBUG opt_ratelimit.h
INET opt_inet.h
INET6 opt_inet6.h
STATS opt_global.h
IPDIVERT
IPFILTER opt_ipfilter.h
IPFILTER_DEFAULT_BLOCK opt_ipfilter.h
IPFILTER_LOG opt_ipfilter.h
IPFILTER_LOOKUP opt_ipfilter.h
IPFIREWALL opt_ipfw.h
IPFIREWALL_DEFAULT_TO_ACCEPT opt_ipfw.h
IPFIREWALL_NAT opt_ipfw.h
IPFIREWALL_NAT64 opt_ipfw.h
IPFIREWALL_NPTV6 opt_ipfw.h
IPFIREWALL_VERBOSE opt_ipfw.h
IPFIREWALL_VERBOSE_LIMIT opt_ipfw.h
IPFIREWALL_PMOD opt_ipfw.h
IPSEC opt_ipsec.h
IPSEC_DEBUG opt_ipsec.h
IPSEC_SUPPORT opt_ipsec.h
IPSTEALTH
KERN_TLS
KRPC
LIBALIAS
LIBMCHAIN
MBUF_PROFILING
MBUF_STRESS_TEST
MROUTING opt_mrouting.h
NFSLOCKD
PCBGROUP opt_pcbgroup.h
PF_DEFAULT_TO_DROP opt_pf.h
ROUTE_MPATH opt_route.h
ROUTETABLES opt_route.h
FIB_ALGO opt_route.h
RSS opt_rss.h
SLIP_IFF_OPTS opt_slip.h
TCPDEBUG
TCPPCAP opt_global.h
SIFTR
TCP_BLACKBOX opt_global.h
TCP_HHOOK opt_inet.h
TCP_OFFLOAD opt_inet.h # Enable code to dispatch TCP offloading
TCP_RFC7413 opt_inet.h
TCP_RFC7413_MAX_KEYS opt_inet.h
TCP_RFC7413_MAX_PSKS opt_inet.h
TCP_SIGNATURE opt_ipsec.h
VLAN_ARRAY opt_vlan.h
XDR
XBONEHACK
#
# SCTP
#
SCTP opt_sctp.h
SCTP_SUPPORT opt_sctp.h
SCTP_DEBUG opt_sctp.h # Enable debug printfs
SCTP_LOCK_LOGGING opt_sctp.h # Log to KTR lock activity
SCTP_MBUF_LOGGING opt_sctp.h # Log to KTR general mbuf aloc/free
SCTP_MBCNT_LOGGING opt_sctp.h # Log to KTR mbcnt activity
SCTP_PACKET_LOGGING opt_sctp.h # Log to a packet buffer last N packets
SCTP_LTRACE_CHUNKS opt_sctp.h # Log to KTR chunks processed
SCTP_LTRACE_ERRORS opt_sctp.h # Log to KTR error returns.
SCTP_USE_PERCPU_STAT opt_sctp.h # Use per cpu stats.
SCTP_MCORE_INPUT opt_sctp.h # Have multiple input threads for input mbufs
SCTP_LOCAL_TRACE_BUF opt_sctp.h # Use tracebuffer exported via sysctl
SCTP_DETAILED_STR_STATS opt_sctp.h # Use per PR-SCTP policy stream stats
#
#
#
# Netgraph(4). Use option NETGRAPH to enable the base netgraph code.
# Each netgraph node type can be either be compiled into the kernel
# or loaded dynamically. To get the former, include the corresponding
# option below. Each type has its own man page, e.g. ng_async(4).
NETGRAPH
NETGRAPH_DEBUG opt_netgraph.h
NETGRAPH_ASYNC opt_netgraph.h
NETGRAPH_ATMLLC opt_netgraph.h
NETGRAPH_ATM_ATMPIF opt_netgraph.h
NETGRAPH_BLUETOOTH opt_netgraph.h
NETGRAPH_BLUETOOTH_BT3C opt_netgraph.h
NETGRAPH_BLUETOOTH_H4 opt_netgraph.h
NETGRAPH_BLUETOOTH_HCI opt_netgraph.h
NETGRAPH_BLUETOOTH_L2CAP opt_netgraph.h
NETGRAPH_BLUETOOTH_SOCKET opt_netgraph.h
NETGRAPH_BLUETOOTH_UBT opt_netgraph.h
NETGRAPH_BLUETOOTH_UBTBCMFW opt_netgraph.h
NETGRAPH_BPF opt_netgraph.h
NETGRAPH_BRIDGE opt_netgraph.h
NETGRAPH_CAR opt_netgraph.h
NETGRAPH_CHECKSUM opt_netgraph.h
NETGRAPH_CISCO opt_netgraph.h
NETGRAPH_DEFLATE opt_netgraph.h
NETGRAPH_DEVICE opt_netgraph.h
NETGRAPH_ECHO opt_netgraph.h
NETGRAPH_EIFACE opt_netgraph.h
NETGRAPH_ETHER opt_netgraph.h
NETGRAPH_ETHER_ECHO opt_netgraph.h
NETGRAPH_FEC opt_netgraph.h
NETGRAPH_FRAME_RELAY opt_netgraph.h
NETGRAPH_GIF opt_netgraph.h
NETGRAPH_GIF_DEMUX opt_netgraph.h
NETGRAPH_HOLE opt_netgraph.h
NETGRAPH_IFACE opt_netgraph.h
NETGRAPH_IP_INPUT opt_netgraph.h
NETGRAPH_IPFW opt_netgraph.h
NETGRAPH_KSOCKET opt_netgraph.h
NETGRAPH_L2TP opt_netgraph.h
NETGRAPH_LMI opt_netgraph.h
NETGRAPH_MPPC_COMPRESSION opt_netgraph.h
NETGRAPH_MPPC_ENCRYPTION opt_netgraph.h
NETGRAPH_NAT opt_netgraph.h
NETGRAPH_NETFLOW opt_netgraph.h
NETGRAPH_ONE2MANY opt_netgraph.h
NETGRAPH_PATCH opt_netgraph.h
NETGRAPH_PIPE opt_netgraph.h
NETGRAPH_PPP opt_netgraph.h
NETGRAPH_PPPOE opt_netgraph.h
NETGRAPH_PPTPGRE opt_netgraph.h
NETGRAPH_PRED1 opt_netgraph.h
NETGRAPH_RFC1490 opt_netgraph.h
NETGRAPH_SOCKET opt_netgraph.h
NETGRAPH_SPLIT opt_netgraph.h
NETGRAPH_SPPP opt_netgraph.h
NETGRAPH_TAG opt_netgraph.h
NETGRAPH_TCPMSS opt_netgraph.h
NETGRAPH_TEE opt_netgraph.h
NETGRAPH_TTY opt_netgraph.h
NETGRAPH_UI opt_netgraph.h
NETGRAPH_VJC opt_netgraph.h
NETGRAPH_VLAN opt_netgraph.h
# NgATM options
NGATM_ATM opt_netgraph.h
NGATM_ATMBASE opt_netgraph.h
NGATM_SSCOP opt_netgraph.h
NGATM_SSCFU opt_netgraph.h
NGATM_UNI opt_netgraph.h
NGATM_CCATM opt_netgraph.h
# DRM options
DRM_DEBUG opt_drm.h
TI_SF_BUF_JUMBO opt_ti.h
TI_JUMBO_HDRSPLIT opt_ti.h
# Misc debug flags. Most of these should probably be replaced with
# 'DEBUG', and then let people recompile just the interesting modules
# with 'make CC="cc -DDEBUG"'.
CLUSTERDEBUG opt_debug_cluster.h
DEBUG_1284 opt_ppb_1284.h
LPT_DEBUG opt_lpt.h
PLIP_DEBUG opt_plip.h
LOCKF_DEBUG opt_debug_lockf.h
SI_DEBUG opt_debug_si.h
IFMEDIA_DEBUG opt_ifmedia.h
# Fb options
FB_DEBUG opt_fb.h
FB_INSTALL_CDEV opt_fb.h
# ppbus related options
PERIPH_1284 opt_ppb_1284.h
DONTPROBE_1284 opt_ppb_1284.h
# smbus related options
ENABLE_ALART opt_intpm.h
# These cause changes all over the kernel
BLKDEV_IOSIZE opt_global.h
BURN_BRIDGES opt_global.h
DEBUG opt_global.h
DEBUG_LOCKS opt_global.h
DEBUG_VFS_LOCKS opt_global.h
DFLTPHYS opt_global.h
DIAGNOSTIC opt_global.h
INVARIANT_SUPPORT opt_global.h
INVARIANTS opt_global.h
KASSERT_PANIC_OPTIONAL opt_global.h
MAXCPU opt_global.h
MAXMEMDOM opt_global.h
MAXPHYS opt_maxphys.h
MCLSHIFT opt_global.h
MUTEX_NOINLINE opt_global.h
LOCK_PROFILING opt_global.h
LOCK_PROFILING_FAST opt_global.h
MSIZE opt_global.h
REGRESSION opt_global.h
RWLOCK_NOINLINE opt_global.h
SX_NOINLINE opt_global.h
VFS_BIO_DEBUG opt_global.h
# These are VM related options
VM_KMEM_SIZE opt_vm.h
VM_KMEM_SIZE_SCALE opt_vm.h
VM_KMEM_SIZE_MAX opt_vm.h
VM_NRESERVLEVEL opt_vm.h
VM_LEVEL_0_ORDER opt_vm.h
NO_SWAPPING opt_vm.h
MALLOC_MAKE_FAILURES opt_vm.h
MALLOC_PROFILE opt_vm.h
MALLOC_DEBUG_MAXZONES opt_vm.h
# The MemGuard replacement allocator used for tamper-after-free detection
DEBUG_MEMGUARD opt_vm.h
# The RedZone malloc(9) protection
DEBUG_REDZONE opt_vm.h
# Standard SMP options
EARLY_AP_STARTUP opt_global.h
SMP opt_global.h
NUMA opt_global.h
# Size of the kernel message buffer
MSGBUF_SIZE opt_msgbuf.h
# NFS options
NFS_MINATTRTIMO opt_nfs.h
NFS_MAXATTRTIMO opt_nfs.h
NFS_MINDIRATTRTIMO opt_nfs.h
NFS_MAXDIRATTRTIMO opt_nfs.h
NFS_DEBUG opt_nfs.h
# TMPFS options
TMPFS_PAGES_MINRESERVED opt_tmpfs.h
# Options for uart(4)
UART_PPS_ON_CTS opt_uart.h
UART_POLL_FREQ opt_uart.h
UART_DEV_TOLERANCE_PCT opt_uart.h
# options for bus/device framework
BUS_DEBUG opt_bus.h
# options for USB support
USB_DEBUG opt_usb.h
USB_HOST_ALIGN opt_usb.h
USB_REQ_DEBUG opt_usb.h
USB_TEMPLATE opt_usb.h
USB_VERBOSE opt_usb.h
USB_DMA_SINGLE_ALLOC opt_usb.h
USB_EHCI_BIG_ENDIAN_DESC opt_usb.h
U3G_DEBUG opt_u3g.h
UKBD_DFLT_KEYMAP opt_ukbd.h
UPLCOM_INTR_INTERVAL opt_uplcom.h
UVSCOM_DEFAULT_OPKTSIZE opt_uvscom.h
UVSCOM_INTR_INTERVAL opt_uvscom.h
# options for the Realtek rtwn driver
RTWN_DEBUG opt_rtwn.h
RTWN_WITHOUT_UCODE opt_rtwn.h
# Embedded system options
INIT_PATH
ROOTDEVNAME
FDC_DEBUG opt_fdc.h
PCFCLOCK_VERBOSE opt_pcfclock.h
PCFCLOCK_MAX_RETRIES opt_pcfclock.h
KTR opt_global.h
KTR_ALQ opt_ktr.h
KTR_MASK opt_ktr.h
KTR_CPUMASK opt_ktr.h
KTR_COMPILE opt_global.h
KTR_BOOT_ENTRIES opt_global.h
KTR_ENTRIES opt_global.h
KTR_VERBOSE opt_ktr.h
WITNESS opt_global.h
WITNESS_KDB opt_witness.h
WITNESS_NO_VNODE opt_witness.h
WITNESS_SKIPSPIN opt_witness.h
WITNESS_COUNT opt_witness.h
OPENSOLARIS_WITNESS opt_global.h
EPOCH_TRACE opt_global.h
# options for ACPI support
ACPI_DEBUG opt_acpi.h
ACPI_MAX_TASKS opt_acpi.h
ACPI_MAX_THREADS opt_acpi.h
DEV_ACPI opt_acpi.h
# options for IOMMU support
IOMMU opt_iommu.h
# ISA support
DEV_ISA opt_isa.h
ISAPNP opt_isa.h
# various 'device presence' options.
DEV_BPF opt_bpf.h
DEV_CARP opt_carp.h
DEV_NETMAP opt_global.h
DEV_PCI opt_pci.h
DEV_PF opt_pf.h
DEV_PFLOG opt_pf.h
DEV_PFSYNC opt_pf.h
DEV_SPLASH opt_splash.h
DEV_VLAN opt_vlan.h
# ed driver
ED_HPP opt_ed.h
ED_3C503 opt_ed.h
ED_SIC opt_ed.h
# bce driver
BCE_DEBUG opt_bce.h
BCE_NVRAM_WRITE_SUPPORT opt_bce.h
SOCKBUF_DEBUG opt_global.h
# options for hifn driver
HIFN_DEBUG opt_hifn.h
HIFN_RNDTEST opt_hifn.h
# options for safenet driver
SAFE_DEBUG opt_safe.h
SAFE_NO_RNG opt_safe.h
SAFE_RNDTEST opt_safe.h
# syscons/vt options
MAXCONS opt_syscons.h
SC_ALT_MOUSE_IMAGE opt_syscons.h
SC_CUT_SPACES2TABS opt_syscons.h
SC_CUT_SEPCHARS opt_syscons.h
SC_DEBUG_LEVEL opt_syscons.h
SC_DFLT_FONT opt_syscons.h
SC_DFLT_TERM opt_syscons.h
SC_DISABLE_KDBKEY opt_syscons.h
SC_DISABLE_REBOOT opt_syscons.h
SC_HISTORY_SIZE opt_syscons.h
SC_KERNEL_CONS_ATTR opt_syscons.h
SC_KERNEL_CONS_ATTRS opt_syscons.h
SC_KERNEL_CONS_REV_ATTR opt_syscons.h
SC_MOUSE_CHAR opt_syscons.h
SC_NO_CUTPASTE opt_syscons.h
SC_NO_FONT_LOADING opt_syscons.h
SC_NO_HISTORY opt_syscons.h
SC_NO_MODE_CHANGE opt_syscons.h
SC_NO_SUSPEND_VTYSWITCH opt_syscons.h
SC_NO_SYSMOUSE opt_syscons.h
SC_NO_TERM_DUMB opt_syscons.h
SC_NO_TERM_SC opt_syscons.h
SC_NO_TERM_TEKEN opt_syscons.h
SC_NORM_ATTR opt_syscons.h
SC_NORM_REV_ATTR opt_syscons.h
SC_PIXEL_MODE opt_syscons.h
SC_RENDER_DEBUG opt_syscons.h
SC_TWOBUTTON_MOUSE opt_syscons.h
VT_ALT_TO_ESC_HACK opt_syscons.h
VT_FB_MAX_WIDTH opt_syscons.h
VT_FB_MAX_HEIGHT opt_syscons.h
VT_MAXWINDOWS opt_syscons.h
VT_TWOBUTTON_MOUSE opt_syscons.h
DEV_SC opt_syscons.h
DEV_VT opt_syscons.h
# teken terminal emulator options
TEKEN_CONS25 opt_teken.h
TEKEN_UTF8 opt_teken.h
TERMINAL_KERN_ATTR opt_teken.h
TERMINAL_NORM_ATTR opt_teken.h
# options for printf
PRINTF_BUFR_SIZE opt_printf.h
BOOT_TAG opt_printf.h
BOOT_TAG_SZ opt_printf.h
# kbd options
KBD_DISABLE_KEYMAP_LOAD opt_kbd.h
KBD_INSTALL_CDEV opt_kbd.h
KBD_MAXRETRY opt_kbd.h
KBD_MAXWAIT opt_kbd.h
KBD_RESETDELAY opt_kbd.h
KBDIO_DEBUG opt_kbd.h
KBDMUX_DFLT_KEYMAP opt_kbdmux.h
# options for the Atheros driver
ATH_DEBUG opt_ath.h
ATH_TXBUF opt_ath.h
ATH_RXBUF opt_ath.h
ATH_DIAGAPI opt_ath.h
ATH_TX99_DIAG opt_ath.h
ATH_ENABLE_11N opt_ath.h
ATH_ENABLE_DFS opt_ath.h
ATH_EEPROM_FIRMWARE opt_ath.h
ATH_ENABLE_RADIOTAP_VENDOR_EXT opt_ath.h
ATH_DEBUG_ALQ opt_ath.h
ATH_KTR_INTR_DEBUG opt_ath.h
# options for the Atheros hal
# XXX For now, this breaks non-AR9130 chipsets, so only use it
# XXX when actually targeting AR9130.
AH_SUPPORT_AR9130 opt_ah.h
# This is required for AR933x SoC support
AH_SUPPORT_AR9330 opt_ah.h
AH_SUPPORT_AR9340 opt_ah.h
AH_SUPPORT_QCA9530 opt_ah.h
AH_SUPPORT_QCA9550 opt_ah.h
AH_DEBUG opt_ah.h
AH_ASSERT opt_ah.h
AH_DEBUG_ALQ opt_ah.h
AH_REGOPS_FUNC opt_ah.h
AH_WRITE_REGDOMAIN opt_ah.h
AH_DEBUG_COUNTRY opt_ah.h
AH_WRITE_EEPROM opt_ah.h
AH_PRIVATE_DIAG opt_ah.h
AH_NEED_DESC_SWAP opt_ah.h
AH_USE_INIPDGAIN opt_ah.h
AH_MAXCHAN opt_ah.h
AH_RXCFG_SDMAMW_4BYTES opt_ah.h
AH_INTERRUPT_DEBUGGING opt_ah.h
# AR5416 and later interrupt mitigation
# XXX do not use this for AR9130
AH_AR5416_INTERRUPT_MITIGATION opt_ah.h
# options for the Altera mSGDMA driver (altera_msgdma)
ALTERA_MSGDMA_DESC_STD opt_altera_msgdma.h
ALTERA_MSGDMA_DESC_EXT opt_altera_msgdma.h
ALTERA_MSGDMA_DESC_PF_STD opt_altera_msgdma.h
ALTERA_MSGDMA_DESC_PF_EXT opt_altera_msgdma.h
# options for the Broadcom BCM43xx driver (bwi)
BWI_DEBUG opt_bwi.h
BWI_DEBUG_VERBOSE opt_bwi.h
# options for the Brodacom BCM43xx driver (bwn)
BWN_DEBUG opt_bwn.h
BWN_GPL_PHY opt_bwn.h
BWN_USE_SIBA opt_bwn.h
# Options for the SIBA driver
SIBA_DEBUG opt_siba.h
# options for the Marvell 8335 wireless driver
MALO_DEBUG opt_malo.h
MALO_TXBUF opt_malo.h
MALO_RXBUF opt_malo.h
# options for the Marvell wireless driver
MWL_DEBUG opt_mwl.h
MWL_TXBUF opt_mwl.h
MWL_RXBUF opt_mwl.h
MWL_DIAGAPI opt_mwl.h
MWL_AGGR_SIZE opt_mwl.h
MWL_TX_NODROP opt_mwl.h
# Options for the Marvell NETA driver
MVNETA_MULTIQUEUE opt_mvneta.h
MVNETA_KTR opt_mvneta.h
# Options for the Intel 802.11ac wireless driver
IWM_DEBUG opt_iwm.h
# Options for the Intel 802.11n wireless driver
IWN_DEBUG opt_iwn.h
# Options for the Intel 3945ABG wireless driver
WPI_DEBUG opt_wpi.h
# dcons options
DCONS_BUF_SIZE opt_dcons.h
DCONS_POLL_HZ opt_dcons.h
DCONS_FORCE_CONSOLE opt_dcons.h
DCONS_FORCE_GDB opt_dcons.h
# HWPMC options
HWPMC_DEBUG opt_global.h
HWPMC_HOOKS
HWPMC_MIPS_BACKTRACE opt_hwpmc_hooks.h
# 802.11 support layer
IEEE80211_DEBUG opt_wlan.h
IEEE80211_DEBUG_REFCNT opt_wlan.h
IEEE80211_SUPPORT_MESH opt_wlan.h
IEEE80211_SUPPORT_SUPERG opt_wlan.h
IEEE80211_SUPPORT_TDMA opt_wlan.h
IEEE80211_ALQ opt_wlan.h
IEEE80211_DFS_DEBUG opt_wlan.h
# 802.11 TDMA support
TDMA_SLOTLEN_DEFAULT opt_tdma.h
TDMA_SLOTCNT_DEFAULT opt_tdma.h
TDMA_BINTVAL_DEFAULT opt_tdma.h
TDMA_TXRATE_11B_DEFAULT opt_tdma.h
TDMA_TXRATE_11G_DEFAULT opt_tdma.h
TDMA_TXRATE_11A_DEFAULT opt_tdma.h
TDMA_TXRATE_TURBO_DEFAULT opt_tdma.h
TDMA_TXRATE_HALF_DEFAULT opt_tdma.h
TDMA_TXRATE_QUARTER_DEFAULT opt_tdma.h
TDMA_TXRATE_11NA_DEFAULT opt_tdma.h
TDMA_TXRATE_11NG_DEFAULT opt_tdma.h
# VideoMode
PICKMODE_DEBUG opt_videomode.h
# Network stack virtualization options
VIMAGE opt_global.h
VNET_DEBUG opt_global.h
# Common Flash Interface (CFI) options
CFI_SUPPORT_STRATAFLASH opt_cfi.h
CFI_ARMEDANDDANGEROUS opt_cfi.h
CFI_HARDWAREBYTESWAP opt_cfi.h
# Sound options
SND_DEBUG opt_snd.h
SND_DIAGNOSTIC opt_snd.h
SND_FEEDER_MULTIFORMAT opt_snd.h
SND_FEEDER_FULL_MULTIFORMAT opt_snd.h
SND_FEEDER_RATE_HP opt_snd.h
SND_PCM_64 opt_snd.h
SND_OLDSTEREO opt_snd.h
X86BIOS
# Flattened device tree options
FDT opt_platform.h
FDT_DTB_STATIC opt_platform.h
# OFED Infiniband stack
OFED opt_ofed.h
OFED_DEBUG_INIT opt_ofed.h
SDP opt_ofed.h
SDP_DEBUG opt_ofed.h
IPOIB opt_ofed.h
IPOIB_DEBUG opt_ofed.h
IPOIB_CM opt_ofed.h
# Resource Accounting
RACCT opt_global.h
RACCT_DEFAULT_TO_DISABLED opt_global.h
# Resource Limits
RCTL opt_global.h
# Random number generator(s)
# Alternative RNG algorithm.
RANDOM_FENESTRASX opt_global.h
# With this, no entropy processor is loaded, but the entropy
# harvesting infrastructure is present. This means an entropy
# processor may be loaded as a module.
RANDOM_LOADABLE opt_global.h
# This turns on high-rate and potentially expensive harvesting in
# the uma slab allocator.
RANDOM_ENABLE_UMA opt_global.h
RANDOM_ENABLE_ETHER opt_global.h
# This options turns TPM into entropy source.
TPM_HARVEST opt_tpm.h
# BHND(4) driver
BHND_LOGLEVEL opt_global.h
# GPIO and child devices
GPIO_SPI_DEBUG opt_gpio.h
# SPI devices
SPIGEN_LEGACY_CDEVNAME opt_spi.h
# etherswitch(4) driver
RTL8366_SOFT_RESET opt_etherswitch.h
# evdev protocol support
EVDEV_SUPPORT opt_evdev.h
EVDEV_DEBUG opt_evdev.h
UINPUT_DEBUG opt_evdev.h
# Hyper-V network driver
HN_DEBUG opt_hn.h
# CAM-based MMC stack
MMCCAM
# Encrypted kernel crash dumps
EKCD opt_ekcd.h
# NVME options
NVME_USE_NVD opt_nvme.h
# amdsbwd options
AMDSBWD_DEBUG opt_amdsbwd.h
# gcov support
GCOV opt_global.h
LINDEBUGFS
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