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
99 lines
3.0 KiB
Plaintext
99 lines
3.0 KiB
Plaintext
# GENERIC -- Generic kernel configuration file for FreeBSD/arm
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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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ident CRB
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include "std.arm"
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options PHYSADDR=0x00000000
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options KERNVIRTADDR=0xc0200000 # Used in ldscript.arm
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options COUNTS_PER_SEC=400000000
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include "../xscale/i8134x/std.crb"
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makeoptions MODULES_OVERRIDE=""
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makeoptions CONF_CFLAGS=-mcpu=xscale
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options HZ=100
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#options DEVICE_POLLING
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options SCHED_4BSD # 4BSD scheduler
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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 # Network Filesystem Client
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options NFSD # Network Filesystem Server
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options NFSLOCKD # Network Lock Manager
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options NFS_ROOT # NFS usable as /, requires NFSCL
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#options MSDOSFS # MSDOS Filesystem
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options GEOM_PART_BSD # BSD partition scheme
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options GEOM_PART_MBR # MBR partition scheme
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options TMPFS # Efficient memory filesystem
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options CD9660 # ISO 9660 Filesystem
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#options PROCFS # Process filesystem (requires PSEUDOFS)
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options PSEUDOFS # Pseudo-filesystem framework
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options SCSI_DELAY=5000 # Delay (in ms) before probing SCSI
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options KTRACE # ktrace(1) support
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options INTR_FILTER
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options SYSVSHM # SYSV-style shared memory
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options SYSVMSG # SYSV-style message queues
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options SYSVSEM # SYSV-style semaphores
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options _KPOSIX_PRIORITY_SCHEDULING # Posix P1003_1B real-time extensions
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options KBD_INSTALL_CDEV # install a CDEV entry in /dev
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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=em0
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options BOOTP_COMPAT
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#options PREEMPTION
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device loop
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device ether
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#device saarm
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device miibus
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device rl
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device em
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device uart
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device pci
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device ata
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device scbus # SCSI bus (required for ATA/SCSI)
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device cd # CD
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device da # Direct Access (disks)
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device pass # Passthrough device (direct ATA/SCSI access)
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device "7seg"
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# SCSI Controllers
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#options AHC_REG_PRETTY_PRINT # Print register bitfields in debug
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# output. Adds ~128k to driver.
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#options AHD_REG_PRETTY_PRINT # Print register bitfields in debug
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# output. Adds ~215k to driver.
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options XSCALE_CACHE_READ_WRITE_ALLOCATE
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device md
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device random # Entropy device
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device iopwdog
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# Floppy drives
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