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authorMarko Kovacevic <marko.kovacevic@intel.com>2017-10-25 16:51:00 +0100
committerThomas Monjalon <thomas@monjalon.net>2017-10-27 01:24:44 +0200
commitbef33b0a9d58e638cf2f5e5f4e7e3ce355958d3c (patch)
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parent7cacb05655397c0c50bcba89eb836d417bc78b69 (diff)
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doc: add new introduction to sample app guides
Add new Introduction Section into the sample app guides. Signed-off-by: Marko Kovacevic <marko.kovacevic@intel.com> Acked-by: John McNamara <john.mcnamara@intel.com>
-rw-r--r--doc/guides/sample_app_ug/intro.rst153
1 files changed, 113 insertions, 40 deletions
diff --git a/doc/guides/sample_app_ug/intro.rst b/doc/guides/sample_app_ug/intro.rst
index d3f261b..ae12503 100644
--- a/doc/guides/sample_app_ug/intro.rst
+++ b/doc/guides/sample_app_ug/intro.rst
@@ -1,5 +1,5 @@
.. BSD LICENSE
- Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ Copyright(c) 2010-2017 Intel Corporation. All rights reserved.
All rights reserved.
Redistribution and use in source and binary forms, with or without
@@ -28,42 +28,115 @@
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-Introduction
-============
-
-This document describes the sample applications that are included in the Data Plane Development Kit (DPDK).
-Each chapter describes a sample application that showcases specific functionality and
-provides instructions on how to compile, run and use the sample application.
-
-Documentation Roadmap
----------------------
-
-The following is a list of DPDK documents in suggested reading order:
-
-* **Release Notes** : Provides release-specific information, including supported features,
- limitations, fixed issues, known issues and so on.
- Also, provides the answers to frequently asked questions in FAQ format.
-
-* **Getting Started Guides** : Describes how to install and
- configure the DPDK software for your operating system;
- designed to get users up and running quickly with the software.
-
-* **Programmer's Guide:** Describes:
-
- * The software architecture and how to use it (through examples),
- specifically in a Linux* application (linuxapp) environment.
-
- * The content of the DPDK, the build system
- (including the commands that can be used in the root DPDK Makefile to build the development kit and an application)
- and guidelines for porting an application.
-
- * Optimizations used in the software and those that should be considered for new development
-
-A glossary of terms is also provided.
-
-* **API Reference** : Provides detailed information about DPDK functions,
- data structures and other programming constructs.
-
-* **Sample Applications User Guide** : Describes a set of sample applications.
- Each chapter describes a sample application that showcases specific functionality and
- provides instructions on how to compile, run and use the sample application.
+Introduction to the DPDK Sample Applications
+============================================
+
+The DPDK Sample Applications are small standalone applications which
+demonstrate various features of DPDK. They can be considered as a cookbook of
+DPDK features. Users interested in getting started with DPDK can take the
+applications, try out the features, and then extend them to fit their needs.
+
+
+The DPDK Sample Applications
+----------------------------
+
+Table :numref:`table_sample_apps` shows a list of some of the main sample
+applications that are available in the examples directory of DPDK:
+
+ .. _table_sample_apps:
+
+ .. table:: **Some of the DPDK Sample applications**
+
+ +---------------------------------------+--------------------------------------+
+ | Bonding | Netmap Compatibility |
+ +---------------------------------------+--------------------------------------+
+ | Command Line | Packet Ordering |
+ +---------------------------------------+--------------------------------------+
+ | Distributor | Performance Thread |
+ +---------------------------------------+--------------------------------------+
+ | Ethtool | Precision Time Protocol (PTP) Client |
+ +---------------------------------------+--------------------------------------+
+ | Exception Path | Quality of Service (QoS) Metering |
+ +---------------------------------------+--------------------------------------+
+ | Hello World | QoS Scheduler |
+ +---------------------------------------+--------------------------------------+
+ | Internet Protocol (IP) Fragmentation | Quota and Watermark |
+ +---------------------------------------+--------------------------------------+
+ | IP Pipeline | RX/TX Callbacks |
+ +---------------------------------------+--------------------------------------+
+ | IP Reassembly | Server node EFD |
+ +---------------------------------------+--------------------------------------+
+ | IPsec Security Gateway | Basic Forwarding/Skeleton App |
+ +---------------------------------------+--------------------------------------+
+ | IPv4 multicast | Tunnel End Point (TEP) termination |
+ +---------------------------------------+--------------------------------------+
+ | Kernel NIC Interface | Timer |
+ +---------------------------------------+--------------------------------------+
+ | Network Layer 2 Forwarding + variants | Vhost |
+ +---------------------------------------+--------------------------------------+
+ | Network Layer 3 Forwarding + variants | Vhost Xen |
+ +---------------------------------------+--------------------------------------+
+ | Link Status Interrupt | VMDQ Forwarding |
+ +---------------------------------------+--------------------------------------+
+ | Load Balancer | VMDQ and DCB Forwarding |
+ +---------------------------------------+--------------------------------------+
+ | Multi-process | VM Power Management |
+ +---------------------------------------+--------------------------------------+
+
+These examples range from simple to reasonably complex but most are designed
+to demonstrate one particular feature of DPDK. Some of the more interesting
+examples are highlighted below.
+
+
+* :doc:`Hello World<hello_world>`: As with most introductions to a
+ programming framework a good place to start is with the Hello World
+ application. The Hello World example sets up the DPDK Environment Abstraction
+ Layer (EAL), and prints a simple "Hello World" message to each of the DPDK
+ enabled cores. This application doesn't do any packet forwarding but it is a
+ good way to test if the DPDK environment is compiled and set up properly.
+
+* :doc:`Basic Forwarding/Skeleton Application<skeleton>`: The Basic
+ Forwarding/Skeleton contains the minimum amount of code required to enable
+ basic packet forwarding with DPDK. This allows you to test if your network
+ interfaces are working with DPDK.
+
+* :doc:`Network Layer 2 forwarding<l2_forward_real_virtual>`: The Network Layer 2
+ forwarding, or ``l2fwd`` application does forwarding based on Ethernet MAC
+ addresses like a simple switch.
+
+* :doc:`Network Layer 3 forwarding<l3_forward>`: The Network Layer3
+ forwarding, or ``l3fwd`` application does forwarding based on Internet
+ Protocol, IPv4 or IPv6 like a simple router.
+
+* :doc:`Packet Distributor<dist_app>`: The Packet Distributor
+ demonstrates how to distribute packets arriving on an Rx port to different
+ cores for processing and transmission.
+
+* :doc:`Multi-Process Application<multi_process>`: The
+ multi-process application shows how two DPDK processes can work together using
+ queues and memory pools to share information.
+
+* :doc:`RX/TX callbacks Application<rxtx_callbacks>`: The RX/TX
+ callbacks sample application is a packet forwarding application that
+ demonstrates the use of user defined callbacks on received and transmitted
+ packets. The application calculates the latency of a packet between RX
+ (packet arrival) and TX (packet transmission) by adding callbacks to the RX
+ and TX packet processing functions.
+
+* :doc:`IPSec Security Gateway<ipsec_secgw>`: The IPSec Security
+ Gateway application is minimal example of something closer to a real world
+ example. This is also a good example of an application using the DPDK
+ Cryptodev framework.
+
+* :doc:`Precision Time Protocol (PTP) client<ptpclient>`: The PTP
+ client is another minimal implementation of a real world application.
+ In this case the application is a PTP client that communicates with a PTP
+ master clock to synchronize time on a Network Interface Card (NIC) using the
+ IEEE1588 protocol.
+
+* :doc:`Quality of Service (QoS) Scheduler<qos_scheduler>`: The QoS
+ Scheduler application demonstrates the use of DPDK to provide QoS scheduling.
+
+There are many more examples shown in the following chapters. Each of the
+documented sample applications show how to compile, configure and run the
+application as well as explaining the main functionality of the code.