bd79708dbf
to add actions that run when a TCP frame is sent or received on a TCP session in the ESTABLISHED state. In the base tree, this functionality is only used for the h_ertt module, which is used by the cc_cdg, cc_chd, cc_hd, and cc_vegas congestion control modules. Presently, we incur overhead to check for hooks each time a TCP frame is sent or received on an ESTABLISHED TCP session. This change adds a new compile-time option (TCP_HHOOK) to determine whether to include the hhook(9) framework for TCP. To retain backwards compatibility, I added the TCP_HHOOK option to every configuration file that already defined "options INET". (Therefore, this patch introduces no functional change. In order to see a functional difference, you need to compile a custom kernel without the TCP_HHOOK option.) This change will allow users to easily exclude this functionality from their kernel, should they wish to do so. Note that any users who use a custom kernel configuration and use one of the congestion control modules listed above will need to add the TCP_HHOOK option to their kernel configuration. Reviewed by: rrs, lstewart, hiren (previous version), sjg (makefiles only) Sponsored by: Netflix Differential Revision: https://reviews.freebsd.org/D8185
126 lines
3.7 KiB
Plaintext
126 lines
3.7 KiB
Plaintext
# XLRN32 -- Kernel configuration file for N32 kernel on XLR/XLS
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#
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# For more information on this file, please read the handbook section on
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# Kernel Configuration Files:
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#
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# http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html
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#
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# The handbook is also available locally in /usr/share/doc/handbook
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# if you've installed the doc distribution, otherwise always see the
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# FreeBSD World Wide Web server (http://www.FreeBSD.org/) for the
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# latest information.
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#
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# An exhaustive list of options and more detailed explanations of the
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# device lines is also present in the ../../conf/NOTES and NOTES files.
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# If you are in doubt as to the purpose or necessity of a line, check first
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# in NOTES.
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#
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# $FreeBSD$
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machine mips mipsn32
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ident XLRN32
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include "../rmi/std.xlr"
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makeoptions MODULES_OVERRIDE=""
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makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols
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makeoptions ARCH_FLAGS="-march=mips64 -mabi=n32"
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makeoptions KERNLOADADDR=0x80100000
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#profile 2
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options SCHED_ULE # ULE scheduler
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#options VERBOSE_SYSINIT
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#options SCHED_4BSD # 4BSD scheduler
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options SMP
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options PREEMPTION # Enable kernel thread preemption
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#options FULL_PREEMPTION # Enable kernel thread preemption
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options INET # InterNETworking
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options INET6 # IPv6 communications protocols
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options TCP_HHOOK # hhook(9) framework for TCP
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options FFS # Berkeley Fast Filesystem
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#options SOFTUPDATES # Enable FFS soft updates support
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options UFS_ACL # Support for access control lists
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options UFS_DIRHASH # Improve performance on big directories
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options NFSCL
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options NFS_ROOT
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#
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options BOOTP
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options BOOTP_NFSROOT
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options BOOTP_NFSV3
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options BOOTP_WIRED_TO=nlge0
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options BOOTP_COMPAT
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options ROOTDEVNAME=\"nfs:10.1.1.8:/usr/extra/nfsroot\"
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#
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#options MD_ROOT # MD is a potential root device
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#options MD_ROOT_SIZE=27000
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#options MD_ROOT_SIZE=5120
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#options ROOTDEVNAME=\"ufs:md0\"
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options _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time extensions
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options HZ=1000
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options NO_SWAPPING
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#Debugging options
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options KTRACE # ktrace(1) support
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#options DDB
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#options KDB
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#options GDB
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#options ALT_BREAK_TO_DEBUGGER
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#options DEADLKRES #Enable the deadlock resolver
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options INVARIANTS #Enable calls of extra sanity checking
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options INVARIANT_SUPPORT #Extra sanity checks of internal structures, required by INVARIANTS
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#options WITNESS #Enable checks to detect deadlocks and cycles
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#options WITNESS_SKIPSPIN #Don't run witness on spinlocks for speed
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#options KTR # ktr(4) and ktrdump(8) support
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#options KTR_COMPILE=(KTR_LOCK|KTR_PROC|KTR_INTR|KTR_CALLOUT|KTR_UMA|KTR_SYSC)
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#options KTR_ENTRIES=131072
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#options LOCK_PROFILING
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#options SLEEPQUEUE_PROFILING
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#options TURNSTILE_PROFILING
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device pci
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#device ata
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#options XLR_PERFMON # Enable XLR processor activity monitoring
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options BREAK_TO_DEBUGGER
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device uart
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# Pseudo
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device loop
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device random
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device md
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device bpf
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# Network
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device miibus
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device nlge
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device ether
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device re
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device msk
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device da
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device scbus
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#device ohci # OHCI PCI->USB interface
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device ehci # EHCI PCI->USB interface (USB 2.0)
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device usb # USB Bus (required)
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options USB_DEBUG # enable debug msgs
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#device udbp # USB Double Bulk Pipe devices
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#device ugen # Generic
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#device uhid # "Human Interface Devices"
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device umass # Disks/Mass storage - Requires scbus and da
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#device cfi
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#i2c
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device ic
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device iic
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device iicbb
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device iicbus
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device ds1374 # RTC on XLR boards
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device max6657 # Temparature sensor on XLR boards
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device at24co2n # EEPROM on XLR boards
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#crypto
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# Not yet
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#device cryptodev
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#device crypto
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#device rmisec
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