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
186 lines
6.1 KiB
Plaintext
186 lines
6.1 KiB
Plaintext
# Kernel configuration for Atmel SAM9260-EK eval board
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#
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# For more information on this file, please read the config(5) manual page,
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# and/or the handbook section on 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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#NO_UNIVERSE
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ident SAM9260EK
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include "std.arm"
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include "../at91/std.sam9260ek"
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# Coming soon, but not yet
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#options FDT
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#options FDT_DTB_STATIC
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#makeoptions FDT_DTS_FILE=sam9260ek.dts
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options EARLY_PRINTF
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options SOCDEV_PA=0xfc000000
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options SOCDEV_VA=0xdc000000
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# To statically compile in device wiring instead of /boot/device.hints
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hints "SAM9260EK.hints"
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makeoptions MODULES_OVERRIDE=""
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options SCHED_4BSD # 4BSD scheduler
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#options 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 SCTP # Stream Control Transmission Protocol
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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 UFS_GJOURNAL # Enable gjournal-based UFS journaling
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#options MD_ROOT # MD is a potential root device
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options NANDFS # NAND file system
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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 GEOM_PART_GPT # GUID Partition Tables.
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#options GEOM_LABEL # Provides labelization
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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 STACK # stack(9) 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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options PRINTF_BUFR_SIZE=128 # Prevent printf output being interspersed.
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#options HWPMC_HOOKS # Necessary kernel hooks for hwpmc(4)
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#options AUDIT # Security event auditing
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#options CAPABILITY_MODE # Capsicum capability mode
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#options CAPABILITIES # Capsicum capabilities
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#options MAC # TrustedBSD MAC Framework
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#options INCLUDE_CONFIG_FILE # Include this file in kernel
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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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#options BOOTP_COMPAT
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#options BOOTP_NFSV3
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#options BOOTP_WIRED_TO=macb0
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# s3 because s1 is reserved for the DOS parittions sometimes needed to
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# boot off SD cards on the G20 and newer chips. s2 is reserved for
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# nanobsd's config partition. s3 and s4 are for the ping-pong upgrade
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# path. 9260 doesn't boot off SD, but let's keep things sane.
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options ROOTDEVNAME=\"ufs:/dev/mmcsd0s3a\"
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# Alternatively, boot from a USB card.
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#options ROOTDEVNAME=\"ufs:/dev/da0s1a\"
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# kernel/memory size reduction
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options MUTEX_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 mii # Minimal MII support
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device macb # Atmel AT91 Ethernet driver
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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 # I2C eeprom
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# MMC/SD
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# See comment for DataFlash below
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device at91_mci # Atmel AT91 Multimedia Card Interface
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options AT91_MCI_HAS_4WIRE # 4 wires
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options AT91_MCI_SLOT_B # Wired to slot B
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device mmc # MMC/SD bus
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device mmcsd # MMC/SD memory card
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# DataFlash
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# The DataFlash and MMC card are wired together, so we must pick one or the
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# other. This is due to pin mux, and also due to the design of the
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# SAM9260EK board. SLOT A wouldn't have this issue.
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#device at91_spi # Atmel AT91 Serial Peripheral Interface
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#device spibus # SPI bus
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#device at45d # Atmel AT45D
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#device geom_map # GEOM partition mapping
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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 vlan # 802.1Q VLAN support
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#device tun # Packet tunnel.
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device md # Memory "disks"
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#device gif # IPv6 and IPv4 tunneling
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#device firmware # firmware assist module
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# SCSI peripherals
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#device scbus # SCSI bus (required for ATA/SCSI)
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#device ch # SCSI media changers
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#device da # Direct Access (disks)
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#device sa # Sequential Access (tape etc)
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#device cd # CD/DVD
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#device pass # Passthrough device (direct ATA/SCSI access)
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#device ses # Enclosure Services (SES and SAF-TE)
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#device ctl # CAM Target Layer
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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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# watchdog
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device at91_wdt # Atmel AT91 Watchdog Timer
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# NAND Flash - Reference design has Samsung 256MB but others possible
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device nand # NAND interface on CS3
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options NSFBUFS=128
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maxusers 32
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# Limit IO size
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options NBUF=128
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# Don't include the SCSI/CAM strings in the default build
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options SCSI_NO_SENSE_STRINGS
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options SCSI_NO_OP_STRINGS
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# .. And no sysctl strings
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options NO_SYSCTL_DESCR
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# For small memory footprints
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options VM_KMEM_SIZE_SCALE=1
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