freebsd kernel with SKQ
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Richard Scheffenegger 14558b9953 Introduce a lower bound of 2 MSS to TCP Cubic.
Running TCP Cubic together with ECN could end up reducing cwnd down to 1 byte, if the
receiver continously sets the ECE flag, resulting in very poor transmission speeds.

In line with RFC6582 App. B, a lower bound of 2 MSS is introduced, as well as a typecast
to prevent any potential integer overflows during intermediate calculation steps of the
adjusted cwnd.

Reported by:	Cheng Cui
Reviewed by:	tuexen (mentor)
Approved by:	tuexen (mentor)
MFC after:	2 weeks
Sponsored by:	NetApp, Inc.
Differential Revision:	https://reviews.freebsd.org/D23353
2020-04-30 11:11:28 +00:00
bin sh: Assert INTOFF rather than applying it in ck* 2020-04-28 20:34:27 +00:00
cddl dtrace tests: Support globbing for excludes 2020-04-29 21:12:32 +00:00
contrib Tentatively apply https://reviews.llvm.org/D78877 (by Dave Green): 2020-04-26 19:17:45 +00:00
crypto Merge OpenSSL 1.1.1g. 2020-04-21 19:38:32 +00:00
etc Introduce nexthop objects and new routing KPI. 2020-04-12 14:30:00 +00:00
gnu userland build: replace -fno-common with ${CFCOMMONFLAG} 2020-04-10 14:01:07 +00:00
include Import OpenSSL 1.1.1g. 2020-04-21 19:07:46 +00:00
kerberos5 Update Makefile.depend files 2019-12-11 17:37:53 +00:00
lib liblua: ensure that "require" will fail in bootstrap flua 2020-04-29 13:41:32 +00:00
libexec Move ARM specific flags to arm/Makefile.inc 2020-04-29 16:05:50 +00:00
release Set use_nvd=0 in EC2 AMIs. 2020-04-27 21:44:02 +00:00
rescue rescue: Remove useless linking with libl 2020-03-24 07:08:02 +00:00
sbin Skip bectl jail test if jail not installed (WITHOUT_JAIL). 2020-04-29 14:15:21 +00:00
secure Merge OpenSSL 1.1.1g. 2020-04-21 19:38:32 +00:00
share src.conf.5: regen after 359736, ZONEINFO_OLD_TIMEZONES_SUPPORT removal 2020-04-30 00:14:14 +00:00
stand loader.conf(5): document that loader_conf_files may be clobbered 2020-04-30 02:50:58 +00:00
sys Introduce a lower bound of 2 MSS to TCP Cubic. 2020-04-30 11:11:28 +00:00
targets retire in-tree GPL dtc devicetree compiler 2020-02-29 17:10:54 +00:00
tests Add some regression tests for read and write kevents on pipes. 2020-04-27 15:59:34 +00:00
tools Due to popular demand, revert r360102. 2020-04-19 21:38:03 +00:00
usr.bin diff(1): don't reject specifying the same format multiple times 2020-04-28 14:33:33 +00:00
usr.sbin config: Add no-ctfconvert support. 2020-04-28 16:09:22 +00:00
.arcconfig
.arclint arc lint: ignore /tests/ in chmod 2017-12-19 03:38:06 +00:00
.cirrus.yml Cirrus-CI: increase timeout to 120m 2020-02-19 15:56:40 +00:00
.clang-format Add a basic clang-format configuration file 2019-06-07 15:23:52 +00:00
.gitattributes Add a basic clang-format configuration file 2019-06-07 15:23:52 +00:00
.gitignore Import the kyua testing framework for infrastructure software 2020-03-17 16:56:50 +00:00
COPYRIGHT Happy New Year 2020! 2019-12-31 16:01:36 +00:00
LOCKS LOCKS: update current locks 2018-06-09 03:08:04 +00:00
MAINTAINERS Move all sources from the llvm project into contrib/llvm-project. 2019-12-20 19:53:05 +00:00
Makefile Use universe-toolchain config(8) 2020-04-29 02:18:39 +00:00
Makefile.inc1 Fix race between prebuilding libsbuf and libgeom 2020-04-25 20:24:41 +00:00
Makefile.libcompat Stop building libl and liby 2020-03-26 08:23:09 +00:00
Makefile.sys.inc AUTO_OBJ: For all top-level targets enforce using an OBJDIR. 2017-12-05 21:29:47 +00:00
ObsoleteFiles.inc libauditd: make it a PRIVATELIB 2020-04-19 02:20:39 +00:00
README Import OpenSSL 1.1.1g. 2020-04-21 19:07:46 +00:00
README.md Import the kyua testing framework for infrastructure software 2020-03-17 16:56:50 +00:00
RELNOTES Document removal of deprecated algorithms from geli(4). 2020-04-15 19:33:42 +00:00
UPDATING UPDATING: Fix the date of the closefrom(2) entry 2020-04-24 12:57:03 +00:00

FreeBSD Source:

This is the top level of the FreeBSD source directory. This file was last revised on: FreeBSD

FreeBSD is an operating system used to power modern servers, desktops, and embedded platforms. A large community has continually developed it for more than thirty years. Its advanced networking, security, and storage features have made FreeBSD the platform of choice for many of the busiest web sites and most pervasive embedded networking and storage devices.

For copyright information, please see the file COPYRIGHT in this directory. Additional copyright information also exists for some sources in this tree - please see the specific source directories for more information.

The Makefile in this directory supports a number of targets for building components (or all) of the FreeBSD source tree. See build(7), config(8), https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html, and https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html for more information, including setting make(1) variables.

Source Roadmap:

bin		System/user commands.

cddl		Various commands and libraries under the Common Development
		and Distribution License.

contrib		Packages contributed by 3rd parties.

crypto		Cryptography stuff (see crypto/README).

etc		Template files for /etc.

gnu		Various commands and libraries under the GNU Public License.
		Please see gnu/COPYING* for more information.

include		System include files.

kerberos5	Kerberos5 (Heimdal) package.

lib		System libraries.

libexec		System daemons.

release		Release building Makefile & associated tools.

rescue		Build system for statically linked /rescue utilities.

sbin		System commands.

secure		Cryptographic libraries and commands.

share		Shared resources.

stand		Boot loader sources.

sys		Kernel sources.

sys/<arch>/conf Kernel configuration files. GENERIC is the configuration
		used in release builds. NOTES contains documentation of
		all possible entries.

tests		Regression tests which can be run by Kyua.  See tests/README
		for additional information.

tools		Utilities for regression testing and miscellaneous tasks.

usr.bin		User commands.

usr.sbin	System administration commands.

For information on synchronizing your source tree with one or more of the FreeBSD Project's development branches, please see:

https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/current-stable.html