For Developers

The Developers section covers the following areas:

• Building VPP
• Describes the components of the four VPP layers
• How to Create, Add, Enable/Disable features
• Discusses different aspects of Bounded-index Extensible Hashing (bihash)

• Building VPP
  • Set up Proxies
  • Get the VPP Sources
  • Build VPP Dependencies
  • Build VPP (Debug)
  • Build VPP (Release Version)
  • Building Necessary Packages
• Running VPP
  • Running Without GDB
  • Running With GDB
• GDB Examples
  • Starting GDB
  • Backtrace
  • Get to the GDB prompt
  • Breakpoints
  • Step/Next/List
  • Examining Data and packets
• Getting a Patch Reviewed
  • Setup
  • Clone with ssh
  • Git Review
• Software Architecture
  • VPP Layers - Implementation Taxonomy
• VPPINFRA (Infrastructure)
  • Vectors
  • Bitmaps
  • Pools
  • Hashes
  • Format
  • Unformat
  • Vppinfra errors and warnings
  • Serialization
  • Event-logger, graphical event log viewer
  • G2 graphical event viewer
• VLIB (Vector Processing Library)
  • Init function discovery
  • Node Graph Initialization
  • Graph node dispatcher
  • Graph dispatcher internals
  • Vector Data Structure
  • Scheduling Vectors
  • Complications
  • Next frames, next frame ownership
  • dispatch_pending_node actions
  • Process / thread model
  • Process events
  • Buffers
  • Shared-memory message API
  • Debug CLI
• Plugins
• VNET (VPP Network Stack)
  • Effective graph dispatch function coding
  • Single/dual loops
  • Packet tracer
• Feature Arcs
  • Adding a feature to an existing feature arc
  • Creating a feature arc
  • Enabling / Disabling features
  • Related “show” commands
  • Table of Feature Arcs
• Multi-architecture support
  • Multi-Architecture Graph Node Cookbook
• Bounded-index Extensible Hashing (bihash)
  • Discussion of the algorithm
  • Bihash Cookbook
• VPP API module
  • Overview
  • Common code
  • Generated code
  • Code generator
  • C Usage
  • C++ high level API
  • C++ Usage
• Binary API Support
  • Message Allocation
  • Message Tracing and Replay
  • Client connection details
  • Client disconnection details
  • Sending binary API messages to VPP
  • Receiving binary API messages from VPP
• Build System
  • Introduction to the top-level Makefile
  • Introduction to build-root/Makefile
• Integrating a plugin
  • Overview
  • Setup
  • Modifying configure.ac and Makefile.am
  • Building and Running
  • Additional remarks