1
0
mirror of https://git.FreeBSD.org/src.git synced 2024-12-23 11:18:54 +00:00
Mirror of the FreeBSD src repository https://git.FreeBSD.org/src.git .
Go to file
George V. Neville-Neil e162ea60d4 Add a queue to hold packets while we await an ARP reply.
When a fast machine first brings up some non TCP networking program
it is quite possible that we will drop packets due to the fact that
only one packet can be held per ARP entry.  This leads to packets
being missed when a program starts or restarts if the ARP data is
not currently in the ARP cache.

This code adds a new sysctl, net.link.ether.inet.maxhold, which defines
a system wide maximum number of packets to be held in each ARP entry.
Up to maxhold packets are queued until an ARP reply is received or
the ARP times out.  The default setting is the old value of 1
which has been part of the BSD networking code since time
immemorial.

Expose the time we hold an incomplete ARP entry by adding
the sysctl net.link.ether.inet.wait, which defaults to 20
seconds, the value used when the new ARP code was added..

Reviewed by:	bz, rpaulo
MFC after: 3 weeks
2010-11-12 22:03:02 +00:00
bin sh: Remove unused man page for echo builtin. 2010-11-12 15:40:00 +00:00
cddl Fix ztest when it is executed by just 'ztest' and not by full path 2010-11-01 10:42:14 +00:00
contrib Update xz to release 5.0.0 2010-11-12 16:53:17 +00:00
crypto Upgrade to OpenSSH 5.6p1. 2010-11-11 11:46:19 +00:00
etc Add firmware downloader for Atheros AR3011 based USB Bluetooth devices. 2010-11-12 19:43:12 +00:00
games mdoc: drop redundant .Pp and .LP calls 2010-10-08 12:40:16 +00:00
gnu Revert to libgcc for sparc64. 2010-11-12 15:52:27 +00:00
include Add a new libc function: cfmakesane(3). 2010-11-02 17:00:56 +00:00
kerberos5 Fix a typo. 2010-01-09 18:53:03 +00:00
lib Update xz to release 5.0.0 2010-11-12 16:53:17 +00:00
libexec Use -fPIC to build libexec/rtld-elf on sparc64, so it will also be able 2010-11-11 22:53:55 +00:00
release move the initialization of BINMAKE earler, so it is 2010-11-12 12:48:41 +00:00
rescue MFtbemd: 2010-08-23 22:24:11 +00:00
sbin The first customer of the SO_USER_COOKIE option: 2010-11-12 13:05:17 +00:00
secure Revert changes of 'assure' to 'ensure' made in r211936. 2010-09-11 10:49:56 +00:00
share Stop documenting vgonel() after its converting to the static function: 2010-11-12 12:07:36 +00:00
sys Add a queue to hold packets while we await an ARP reply. 2010-11-12 22:03:02 +00:00
tools Add a queue to hold packets while we await an ARP reply. 2010-11-12 22:03:02 +00:00
usr.bin Add my birthday to the calendar so everyone can send me presents. 2010-11-10 18:45:32 +00:00
usr.sbin Add firmware downloader for Atheros AR3011 based USB Bluetooth devices. 2010-11-12 19:43:12 +00:00
COPYRIGHT
LOCKS
MAINTAINERS Add a comment to MAINTAINERS indicating that sbin/routed is in fact 2010-04-10 12:29:09 +00:00
Makefile Complete the integration of tbemd branch into head. 2010-11-10 06:39:49 +00:00
Makefile.inc1 Replace libgcc.a by libcompiler_rt.a. 2010-11-11 15:48:27 +00:00
Makefile.mips Guard against TARGET_ABI being undefined (TARGET_ABI will go away soon) 2010-08-26 14:54:12 +00:00
ObsoleteFiles.inc Stop documenting vgonel() after its converting to the static function: 2010-11-12 12:07:36 +00:00
README
UPDATING This commit marks the first formal contribution of the "Five New TCP Congestion 2010-11-12 06:41:55 +00:00

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

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, the most
commonly used one being ``world'', which rebuilds and installs
everything in the FreeBSD system from the source tree except the
kernel, the kernel-modules and the contents of /etc.  The ``world''
target should only be used in cases where the source tree has not
changed from the currently running version.  See:
http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html
for more information, including setting make(1) variables.

The ``buildkernel'' and ``installkernel'' targets build and install
the kernel and the modules (see below).  Please see the top of
the Makefile in this directory for more information on the
standard build targets and compile-time flags.

Building a kernel is a somewhat more involved process, documentation
for which can be found at:
   http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html
And in the config(8) man page.
Note: If you want to build and install the kernel with the
``buildkernel'' and ``installkernel'' targets, you might need to build
world before.  More information is available in the handbook.

The sample kernel configuration files reside in the sys/<arch>/conf
sub-directory (assuming that you've installed the kernel sources), the
file named GENERIC being the one used to build your initial installation
kernel.  The file NOTES contains entries and documentation for all possible
devices, not just those commonly used.  It is the successor of the ancient
LINT file, but in contrast to LINT, it is not buildable as a kernel but a
pure reference and documentation file.


Source Roadmap:
---------------
bin		System/user commands.

contrib		Packages contributed by 3rd parties.

crypto		Cryptography stuff (see crypto/README).

etc		Template files for /etc.

games		Amusements.

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.

sys		Kernel sources.

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:

  http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/synching.html