freebsd-skq/sys/mips/conf/BCM
Jonathan T. Looney bd79708dbf 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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#
# $FreeBSD$
#
# The Broadcom 470x/471x/535x series of processors and boards is very commonly
# used in COTS hardware including the ASUS RT-N12, RT-N16, RT-N53.
#
ident BCM
cpu CPU_MIPS74K
hints "BCM.hints"
include "../broadcom/std.broadcom"
# ships with cfe firmware
options CFE
device cfe
options ALT_BREAK_TO_DEBUGGER
options BREAK_TO_DEBUGGER
options BOOTVERBOSE=0
makeoptions TRAMPLOADADDR=0x80800000
makeoptions DEBUG="-g3" #Build kernel with gdb(1) debug symbols
makeoptions MODULES_OVERRIDE=""
options DDB
options KDB
options SCHED_4BSD #4BSD scheduler
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 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
device geom_uzip
options GEOM_UZIP
options GEOM_LABEL # Providers labelization.
options ROOTDEVNAME=\"ufs:ufs/FBSD\" # assumes FW built by
# freebsd-build-wifi
# Debugging for use in -current
#options DEADLKRES
options INVARIANTS
options INVARIANT_SUPPORT
#options BHND_LOGLEVEL=BHND_DEBUG_LEVEL
#options BUS_DEBUG
#makeoptions BUS_DEBUG
options EARLY_PRINTF
#options VERBOSE_SYSINIT
#makeoptions VERBOSE_SYSINIT
# bhnd(4)
device bhnd
device bcma # bcma backplane
device bcma_nexus
device pci
device bhnd_pcib # PCIe-G1 core
#device bgmac # Broadcom GMAC - not yet
device mdio
#Flash
device spibus
device mx25l # Serial Flash
device cfi # Parallel Flash
device cfid
#UART
device uart
#Base
device loop
device ether
device random
device md
#Performance
#options HWPMC_HOOKS
#device hwpmc
#device hwpmc_mips74k
#Ethernet
# device bfe # XXX will build both pci and siba
device miibus # attachments
# pci devices
# USB
options USB_DEBUG # enable debug msgs
# taken from atheros
options USB_EHCI_BIG_ENDIAN_DESC # handle big-endian byte order
options USB_HOST_ALIGN=32 # AR71XX (MIPS in general?) requires this
device usb # USB Bus (required)
device ohci # OHCI interface
device ehci # EHCI interface (USB 2.0)
device scbus
device umass
device da