freebsd-skq/sys/arm/conf/CAMBRIA
jtl 62030781cd In the TCP stack, the hhook(9) framework provides hooks for kernel modules
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
2016-10-12 02:16:42 +00:00

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# CAMBRIA -- Gateworks Cambria 235x boards
# kernel configuration file for FreeBSD/arm
#
# For more information on this file, please read the handbook section on
# Kernel Configuration Files:
#
# http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html
#
# The handbook is also available locally in /usr/share/doc/handbook
# if you've installed the doc distribution, otherwise always see the
# FreeBSD World Wide Web server (http://www.FreeBSD.org/) for the
# latest information.
#
# An exhaustive list of options and more detailed explanations of the
# device lines is also present in the ../../conf/NOTES and NOTES files.
# If you are in doubt as to the purpose or necessity of a line, check first
# in NOTES.
#
# $FreeBSD$
ident CAMBRIA
include "std.arm"
include "../xscale/ixp425/std.ixp435"
# NB: memory mapping is defined in std.avila
include "../xscale/ixp425/std.avila"
options XSCALE_CACHE_READ_WRITE_ALLOCATE
#To statically compile in device wiring instead of /boot/device.hints
hints "CAMBRIA.hints" # Default places to look for devices.
makeoptions CONF_CFLAGS=-mcpu=xscale
makeoptions MODULES_OVERRIDE=""
#options HZ=1000
options HZ=100
options DEVICE_POLLING
options SCHED_4BSD # 4BSD scheduler
#options PREEMPTION
options INET # InterNETworking
options TCP_HHOOK # hhook(9) framework for TCP
options GEOM_PART_BSD # BSD partition scheme
options GEOM_PART_MBR # MBR partition scheme
options TMPFS # Efficient memory filesystem
options FFS # Berkeley Fast Filesystem
options SOFTUPDATES # Enable FFS soft updates support
options NFSCL # Network Filesystem Client
options NFS_ROOT # NFS usable as /, requires NFSCL
options BOOTP
options BOOTP_NFSROOT
options BOOTP_NFSV3
options BOOTP_WIRED_TO=npe0
options BOOTP_COMPAT
# Hardware performance counters
options HWPMC_HOOKS
device hwpmc
#options VERBOSE_SYSINIT
options VERBOSE_INIT_ARM
#device saarm
device pci
device uart
device ixpwdog # watchdog timer
options IXP4XX_FLASH_SIZE=0x02000000 # stock 2358 comes w/ 32M
device cfi # flash support
device cfid # flash disk support
device geom_redboot # redboot fis parser
# I2C Bus
device iicbus
device iicbb
device iic
device ixpiic # I2C bus glue
device ds1672 # DS1672 on I2C bus
device ad7418 # AD7418 on I2C bus
device cambria_fled # Font Panel LED on I2C bus
device cambria_led # 8-LED latch
device gpio
device gpioled
device cambria_gpio # GPIO pins on J11
device ata
device avila_ata # Gateworks CF/IDE support
device npe # Network Processing Engine
device npe_fw
device firmware
device qmgr # Q Manager (required by npe)
device mii # NB: required by npe
device ether
device bpf
device loop
device if_bridge
device md
device random # Entropy device
# Wireless NIC cards
device wlan # 802.11 support
options IEEE80211_DEBUG
options IEEE80211_SUPPORT_TDMA
options IEEE80211_SUPPORT_MESH
device wlan_wep # 802.11 WEP support
device wlan_ccmp # 802.11 CCMP support
device wlan_tkip # 802.11 TKIP support
device wlan_xauth
device ath # Atheros NICs
device ath_pci # Atheros pci/cardbus glue
options ATH_DEBUG
options ATH_DIAGAPI
options ATH_ENABLE_DFS
options ATH_ENABLE_11N
#options ATH_TX99_DIAG
device ath_rate_sample # SampleRate tx rate control for ath
options AH_DEBUG
options AH_PRIVATE_DIAG
options AH_SUPPORT_AR5416 # NB: for 11n descriptor format
device ath_hal
# NB: 2 USB 2.0 ports standard
device usb
options USB_EHCI_BIG_ENDIAN_DESC # handle big-endian byte order
device ehci
device umass
device scbus # SCSI bus (required for ATA/SCSI)
device da # Direct Access (disks)
device pass # Passthrough device (direct ATA/SCSI access)
#device ural
#device zyd
#device wlan_amrr