freebsd with flexible iflib nic queues
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Robert Watson 2a8c860fe3 In order to reduce use of M_EXT outside of the mbuf allocator and
socket-buffer implementations, introduce a return value for MCLGET()
(and m_cljget() that underlies it) to allow the caller to avoid testing
M_EXT itself.  Update all callers to use the return value.

With this change, very few network device drivers remain aware of
M_EXT; the primary exceptions lie in mbuf-chain pretty printers for
debugging, and in a few cases, custom mbuf and cluster allocation
implementations.

NB: This is a difficult-to-test change as it touches many drivers for
which I don't have physical devices.  Instead we've gone for intensive
review, but further post-commit review would definitely be appreciated
to spot errors where changes could not easily be made mechanically,
but were largely mechanical in nature.

Differential Revision:	https://reviews.freebsd.org/D1440
Reviewed by:	adrian, bz, gnn
Sponsored by:	EMC / Isilon Storage Division
2015-01-06 12:59:37 +00:00
bin Install d_align.{in,out} for the :align test 2015-01-05 20:38:47 +00:00
cddl Use the correct state name for unavailable pools in zpool list 2014-12-31 04:11:29 +00:00
contrib readelf: Handle note types from different operating systems 2015-01-05 16:05:15 +00:00
crypto Merge OpenSSL 1.0.1j. 2014-10-15 19:12:05 +00:00
etc Integrate bin/cat/tests from NetBSD into atf/kyua 2015-01-04 22:37:44 +00:00
games Update factor for changes to types in primes, which is a dependency. 2014-09-27 10:57:34 +00:00
gnu Add pregenerated documentation for as(1) and ld(1) 2015-01-04 00:58:30 +00:00
include Deorbit the IEEE-488/GPIB support. 2014-12-25 20:15:13 +00:00
kerberos5 Remove GNU texinfo from base along with all info pages. 2015-01-02 18:45:03 +00:00
lib Avoid use of register variables. Clang 3.5 treats this as undefined behavior, 2015-01-06 03:50:43 +00:00
libexec Apply r246556 to powerpc: 2015-01-06 03:49:22 +00:00
release Document file update. 2015-01-02 23:10:28 +00:00
rescue Add sleep(1) to /rescue. This adds 664 bytes to the binary on amd64 but 2014-12-03 01:34:24 +00:00
sbin Remove old ioctl use and support, once and for all. 2015-01-06 05:28:37 +00:00
secure Reduce overlinking 2014-11-25 22:25:13 +00:00
share In order to reduce use of M_EXT outside of the mbuf allocator and 2015-01-06 12:59:37 +00:00
sys In order to reduce use of M_EXT outside of the mbuf allocator and 2015-01-06 12:59:37 +00:00
tests Add some new modes to OpenCrypto. These modes are AES-ICM (can be used 2014-12-12 19:56:36 +00:00
tools Fix all nits reported by mandoc -Tlint. 2015-01-03 05:39:01 +00:00
usr.bin mdoc: use An macro. 2015-01-04 12:42:08 +00:00
usr.sbin Fix memory leaks. 2015-01-05 15:34:23 +00:00
.arcconfig Update the URL to the phabricator instance. 2014-08-14 16:25:43 +00:00
.arclint arc: add linting for python files 2014-06-02 00:21:42 +00:00
COPYRIGHT Bump copyright year. 2014-12-31 10:00:43 +00:00
LOCKS Explicitly require Security Officer's approval for kernel PRNG bits. 2013-09-17 14:19:05 +00:00
MAINTAINERS Remove cokane@ from MAINTAINERS for 3dfx(4)/tdfx(4) because their email 2014-11-25 05:25:12 +00:00
Makefile Revert r271159, Mis-patched the tree. 2014-09-05 14:35:34 +00:00
Makefile.inc1 Remove GNU texinfo from base along with all info pages. 2015-01-02 18:45:03 +00:00
ObsoleteFiles.inc Integrate sbin/ifconfig/tests from NetBSD into atf/kyua 2015-01-04 22:25:16 +00:00
README
UPDATING Enable remote control using a local socket in the default configuration. 2015-01-05 15:09:00 +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.

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.

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