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Filename Latest commit message Latest commit date
Willem de Bruijn 07b65c5b31 test: add msg_zerocopy test
Introduce regression test for msg_zerocopy feature. Send traffic from
one process to another with and without zerocopy.

Evaluate tcp, udp, raw and packet sockets, including variants
- udp: corking and corking with mixed copy/zerocopy calls
- raw: with and without hdrincl
- packet: at both raw and dgram level

Test on both ipv4 and ipv6, optionally with ethtool changes to
disable scatter-gather, tx checksum or tso offload. All of these
can affect zerocopy behavior.

The regression test can be run on a single machine if over a veth
pair. Then skb_orphan_frags_rx must be modified to be identical to
skb_orphan_frags to allow forwarding zerocopy locally.

The msg_zerocopy.sh script will setup the veth pair in network
namespaces and run all tests.

Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-03 21:37:30 -07:00
arch sock: add SOCK_ZEROCOPY sockopt 2017-08-03 21:37:29 -07:00
block blk-mq: map queues to all present CPUs 2017-07-24 10:01:31 -06:00
certs
crypto crypto: authencesn - Fix digest_null crash 2017-07-18 17:01:11 +08:00
Documentation dt-bindings: net: marvell-pp2: update interrupt-names with TX interrupts 2017-08-03 15:16:09 -07:00
drivers sock: enable MSG_ZEROCOPY 2017-08-03 21:37:30 -07:00
firmware
fs Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-08-01 10:07:50 -07:00
include sock: ulimit on MSG_ZEROCOPY pages 2017-08-03 21:37:30 -07:00
init
ipc
kernel Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-08-01 10:07:50 -07:00
lib Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-08-01 10:07:50 -07:00
mm Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-07-15 12:00:42 -07:00
net tcp: enable MSG_ZEROCOPY 2017-08-03 21:37:30 -07:00
samples Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-08-01 10:07:50 -07:00
scripts DeviceTree fixes for 4.13: 2017-07-28 17:21:41 -07:00
security Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-07-21 03:38:43 +01:00
sound sound fixes for 4.13-rc3 2017-07-27 10:44:28 -07:00
tools test: add msg_zerocopy test 2017-08-03 21:37:30 -07:00
usr
virt KVM: make pid available for uevents without debugfs 2017-07-26 18:57:44 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS net: hns3: Add HNS3 driver to kernel build framework & MAINTAINERS 2017-08-03 15:08:18 -07:00
Makefile Linux 4.13-rc3 2017-07-30 12:40:36 -07:00
README

Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.