freebsd-skq/sys/mips/conf/MT7620
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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4.2 KiB
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# MT7620 -- Kernel configuration file for FreeBSD/mips for Ralink MT7620 systems
#
# 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 MT7620
machine mips mipsel
makeoptions MIPS_LITTLE_ENDIAN=defined
makeoptions KERNLOADADDR=0x80010000
# Don't build any modules yet.
#makeoptions MODULES_OVERRIDE="wlan_xauth wlan_wep wlan_tkip wlan_acl wlan_amrr wlan_ccmp wlan_rssadapt if_bridge bridgestp msdosfs md ipfw dummynet libalias geom/geom_label ufs usb/uplcom usb/u3g usb/umodem usb/umass usb/ucom cam zlib"
makeoptions MODULES_OVERRIDE=""
makeoptions MT7620
include "../rt305x/std.rt305x"
hints "MT7620.hints" #Default places to look for devices.
#makeoptions DEBUG=-g #Build kernel with gdb(1) debug symbols
options MT7620
options RT305X_UBOOT
# Debugging for use in -current
options DEADLKRES #Enable the deadlock resolver
options INVARIANTS #Enable calls of extra sanity checking
options INVARIANT_SUPPORT #Extra sanity checks of internal structures, required by INVARIANTS
options WITNESS #Enable checks to detect deadlocks and cycles
options WITNESS_SKIPSPIN #Don't run witness on spinlocks for speed
#options DIAGNOSTIC
#options DEBUG_LOCKS
#options DEBUG_VFS_LOCKS
#options GDB
options DDB
options KDB
options SCHED_ULE
#options SCHED_4BSD #4BSD scheduler
#options COMPAT_43
options INET #InterNETworking
options TCP_HHOOK # hhook(9) framework for TCP
options NFSCL #Network Filesystem Client
options NFS_ROOT #NFS usable as /, requires NFSCL
options PSEUDOFS #Pseudo-filesystem framework
#options _KPOSIX_PRIORITY_SCHEDULING #Posix P1003_1B real-time extensions
#options BOOTP
#options BOOTP_NFSROOT
#options BOOTP_NFSV3
#options BOOTP_WIRED_TO=rt0
#options BOOTP_COMPAT
#options CD9660 # ISO 9660 Filesystem
#options ROOTDEVNAME=\"cd9660:/dev/map/rootfs.uzip\"
#options TMPFS # TMP Memory Filesystem
options FFS #Berkeley Fast Filesystem
#options SOFTUPDATES #Enable FFS soft updates support
#options UFS_ACL #Support for access control lists
#options UFS_DIRHASH #Improve performance on big directories
#options ROOTDEVNAME=\"nfs:10.0.0.1:/mnt/bsd\"
# Options for making kernel less hangry
#makeoptions INLINE_LIMIT=1024
#options MAXUSERS=3
#options MAXFILES=512
#options NSFBUFS=256
#options SHMALL=128
#options MSGBUF_SIZE=65536
# Options for making kernel smallest
#options NO_SYSCTL_DESCR # No description string of sysctl
#options NO_FFS_SNAPSHOT # Disable Snapshot supporting
#options SCSI_NO_SENSE_STRINGS
#options SCSI_NO_OP_STRINGS
#options RWLOCK_NOINLINE
#options SX_NOINLINE
#options NO_SWAPPING
options MROUTING # Multicast routing
options IPFIREWALL_DEFAULT_TO_ACCEPT
options GEOM_UZIP
options MD_ROOT
options ROOTDEVNAME=\"ufs:da0s1\"
device md
device random
device loop
# RT3050F, RT3052F have only pseudo PHYs, so mii not required
device rt
device spibus
device mx25l
device ether
device miibus
device bpf # Berkeley packet filter
device vlan
device lagg
device if_bridge
device uart
nodevice uart_ns8250
#device tun # Packet tunnel.
#device wlan
#device gpio
#device gpioled
#device cfi # Detect Flash memmory
#device cfid
#device nvram2env
device usb
device ehci
#device ohci
#device dwcotg # DWC like USB OTG Controller driver
#device u3g
#device umodem
#device uplcom
device cdce
device umass
device da
device pass
device scbus
options SCSI_DELAY=1000 # Delay (in ms) before probing SCSI
#options USB_EHCI_BIG_ENDIAN_DESC # handle big-endian byte order
#options USB_DEBUG
#options USB_REQ_DEBUG
device pci