62030781cd
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
120 lines
3.7 KiB
Plaintext
120 lines
3.7 KiB
Plaintext
# EB9200 - Custom kernel for the Embest ATEB9200 AT91RM9200 evaluation board.
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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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# 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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#NO_UNIVERSE
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ident EB9200
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include "std.arm"
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include "../at91/std.eb9200"
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# The AT91 platform doesn't use /boot/loader, so we have to statically wire
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# hints.
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hints "EB9200.hints"
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makeoptions MODULES_OVERRIDE=""
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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 MD_ROOT # MD is a potential root device
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#options MD_ROOT_SIZE=4096 # 4MB ram disk
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#options ROOTDEVNAME=\"ufs:/dev/da0s1a\"
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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 TMPFS # Efficient memory filesystem
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#options MSDOSFS # MSDOS 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 GEOM_PART_BSD # BSD partition scheme
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options GEOM_PART_MBR # MBR partition scheme
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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 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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# NFS root from boopt/dhcp
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options BOOTP
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options BOOTP_NFSROOT
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# Disable the inlining of mutex, rwlock and sx locks. These eat up a lot
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# of space.
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options MUTEX_NOINLINE
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options SX_NOINLINE
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options NO_FFS_SNAPSHOT
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options NO_SWAPPING
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#options NO_SYSCTL_DESCR
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options RWLOCK_NOINLINE
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# The `bpf' device enables the Berkeley Packet Filter.
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# Be aware of the administrative consequences of enabling this!
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# Note that 'bpf' is required for DHCP.
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device bpf # Berkeley packet filter
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# Ethernet
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device ate # Atmel AT91 Ethernet driver
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device miibus
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#device lxtphy
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# I2C
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device at91_twi # Atmel AT91 Two-wire Interface
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device iic # I2C generic I/O device driver
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device iicbus # I2C bus system
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device icee
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# MMC/SD
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device at91_mci # Atmel AT91 Multimedia Card Interface
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device mmc # MMC/SD bus
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device mmcsd # MMC/SD memory card
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device at91_spi # Atmel AT91 Serial Peripheral Interface
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device spibus # SPI bus
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# Pseudo devices.
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device loop # Network loopback
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device random # Entropy device
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device ether # Ethernet support
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device md # Memory "disks"
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# SCSI peripherals
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device scbus # SCSI bus (required for ATA/SCSI)
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device da # Direct Access (disks)
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device cd # CD
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device pass # Passthrough device (direct ATA/SCSI access)
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# Serial (COM) ports
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device uart # Multi-uart driver
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# USB support
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device ohci # OHCI USB interface
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device usb # USB Bus (required)
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device umass # Disks/Mass storage - Requires scbus and da
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# USB device (gadget) support
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#device at91_dci # Atmel's usb device
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#device usfs # emulate a flash
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#device cdce # emulate an ethernet
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#device usb_template # Control of the gadget
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device at91_cfata
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device ata
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