docs: Add initial documentation

Change-Id: Ie08ee783093fcb4df91601aa3b2ee4b1b8468154
Signed-off-by: Billy O'Mahony <billy.o.mahony@intel.com>
(cherry picked from commit 3f4eb4bbabbc6bc06f663abaaf60cc4573fb4fcd)

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+/docs_build/
+/docs_output/
+/releng/

diff --git a/docs/all/index.rst b/docs/all/index.rst
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+.. Open vSwitch for NFV Documentation master file.
+
+====================
+Open vSwitch for NFV
+====================
+Welcome to OVSNFV's documentation !
+
+.. _OVSNFV: https://wiki.opnfv.org/open_vswitch_for_nfv
+.. _REPO: https://opnfv.org/gerrit/ovsnfv
+
+OVSNFV_ is an OPNFV collaborative development project.
+
+The OVSNFV project proposes:
+
+* To modify the OPNFV build to include a deployment option for the
+  software-accelerated userspace Open vSwitch build. This change will
+  significantly improve the performance of the NFVI for network I/O.
+* Future work to encompass collaborative development within the Open
+  vSwitch project to improve the performance of the software-accelerated
+  userspace Open vSwitch and increasing its suitability for Telco NFV
+  deployments.
+
+.. toctree::
+   :maxdepth: 3
+   :numbered: 5
+
+   http://artifacts.opnfv.org/ovsnfv/docs/userguides/index.html
+   http://artifacts.opnfv.org/ovsnfv/docs/release/index.html
+
+
+Indices
+=======
+* :ref:`search`
+

diff --git a/docs/release/NEWS.rst b/docs/release/NEWS.rst
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+January 2016
+============
+
+- Initial Release of OVSNFV Fuel Plugin.

diff --git a/docs/release/index.rst b/docs/release/index.rst
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+***********
+OVSNFV News
+***********
+
+.. toctree::
+   :numbered:
+   :maxdepth: 3
+
+   NEWS.rst

diff --git a/docs/userguides/index.rst b/docs/userguides/index.rst
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+******************************
+OVSNFV Guides and Installation
+******************************
+
+.. toctree::
+   :numbered:
+   :maxdepth: 3
+
+   quickstart.rst
+   installation.rst

diff --git a/docs/userguides/installation.rst b/docs/userguides/installation.rst
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+=============================
+Installing OVSNFV Fuel Plugin
+=============================
+
+* On the Fuel UI, create a new environment.
+* In Settings > Userspace OVS support, check "Userspace OVS support".
+* Continue with environment configuration and deployment as normal.
+
+Upgrading the plugin
+--------------------
+
+From time to time new versions of the plugin may become available.
+
+The plugin cannot be upgraded if an active environment is using the plugin.
+
+In order to upgrade the plugin:
+
+* Copy the updated plugin file to the fuel-master.
+* On the Fuel UI, reset the environment.
+* On the Fuel CLI "fuel plugins --update <fuel-plugin-file>"
+* On the Fuel UI, re-deploy the environment.

diff --git a/docs/userguides/quickstart.rst b/docs/userguides/quickstart.rst
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+============
+Open vSwitch
+============
+
+Open vSwtich (OVS) is a software switch commonly used in OpenStack deployments
+to replace Linux bridges as it offers advantages in terms of mobility, hardware
+integration and use by network controllers.
+
+================
+OPNFV Installers
+================
+
+Currently not all installers are supported.
+
+Fuel Installer
+--------------
+
+OVSNFV project supplies a Fuel Plugin to upgrades Open vSwitch on an OPNFV
+installation to use user-space datapath.
+
+As part of the upgrade the following changes are also made:
+
+* change libvirt on compute node to 1.2.12
+* change qemu on compute node to 2.2.1
+* installs DPDK 2.0.0
+* installs OVS 2.1 (specifically git tag 1e77bbe)
+* removes existing OVS neutron plugin
+* installs new OVS plugin as part of networking_ovs_dpdk OpenStack plugin
+  version stable/kilo
+* work around _set_device_mtu issue
+
+Limitations
+~~~~~~~~~~~
+
+This release should be considered experimental. In particular:
+
+* performance will be addressed specifically in subsequent releases.
+* OVS and other components are updated only on compute nodes.
+
+Bugs
+~~~~
+
+* There may be issues assigning floating and public ip address to VMs.
+