Data Plane Development Kit Reference Manual: Intel FPGA Programmable Acceleration Card N3000

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ID 683512
Date 12/06/2019
Public
Document Table of Contents
Document Table of Contents x
1. About this Document 2. Data Plane Development Kit Overview 3. IFPGA Base Code Design 4. Ethernet Group and Retimer API 5. Revision History for the Data Plane Development Kit Reference Manual: Intel® FPGA PAC N3000
1. About this Document x
1.1. About this Document 1.2. Acronym List
2. Data Plane Development Kit Overview x
2.1. DPDK Intel® FPGA PAC N3000 Software Overview 2.2. DPDK Intel® FPGA PAC N3000 Software Components 2.3. FPGA Scan and Enumeration 2.4. OPAE User Mode Driver 2.5. OPAE User Mode Driver API Summary
2.4. OPAE User Mode Driver x
2.4.1. OPAE FPGA Adapter 2.4.2. OPAE Manager 2.4.3. OPAE Accelerator 2.4.4. OPAE Bridge
2.4.1. OPAE FPGA Adapter x
2.4.1.1. opae_adapter_init() 2.4.1.2. opae_adapter_data_alloc() 2.4.1.3. opae_adapter_enumerate() 2.4.1.4. opae_adapter_destroy()
2.4.2. OPAE Manager x
2.4.2.1. opae_manager_alloc() 2.4.2.2. opae_manager_flash() 2.4.2.3. opae_manager_get_eth_group_region_info() 2.4.2.4. Sensor Information 2.4.2.5. opae_mgr_get_sensor_value_by_name() 2.4.2.6. opae_mgr_get_sensor_value_by_id() 2.4.2.7. opae_mgr_get_sensor_value() 2.4.2.8. opae_manager_networking_ops
2.4.3. OPAE Accelerator x
2.4.3.1. opae_accelerator_alloc() 2.4.3.2. opae_acc_get_uuid() 2.4.3.3. opae_acc_get_region_info() 2.4.3.4. opae_acc_get_info()
2.4.4. OPAE Bridge x
2.4.4.1. opae_bridge_alloc() 2.4.4.2. opae_bridge_reset()
2.5. OPAE User Mode Driver API Summary x
2.5.1. Example Code
3. IFPGA Base Code Design x
3.1. FPGA Management 3.2. Accelerator Access and Control
4. Ethernet Group and Retimer API x
4.1. opae_manager_get_eth_group_nums() 4.2. opae_manager_get_eth_group_info() 4.3. opae_manager_eth_group_write_reg() 4.4. opae_manager_eth_group_read_reg() 4.5. opae_manager_get_eth_group_region_info() 4.6. Data Structures for Retiming 4.7. opae_manager_get_retimer_info() 4.8. opae_manager_get_retimer_status()
1. About this Document
2. Data Plane Development Kit Overview
3. IFPGA Base Code Design
4. Ethernet Group and Retimer API
5. Revision History for the Data Plane Development Kit Reference Manual: Intel® FPGA PAC N3000

2. Data Plane Development Kit Overview

This reference manual describes the DPDK software components and API that support the Intel FPGA Programmable Acceleration Card N3000 and Intel® Arria® 10 FPGA. These software components build on the existing DPDK software.
The framework creates a set of libraries that your application can link to. Here are some examples of the available libraries:
  • A packet forwarding algorithm that uses a hash-based approach to a longest prefix match (LPM) library
  • A network buffer management (Mbuf library)
  • A traffic management API

DPDK also provides APIs for the following network functions:

  • Ethernet API to receive and transmit packets and configure network interfaces
  • Baseband API for virtual radio access network (vRAN)
  • Quality of service API configuration
  • Metering API for counter support
  • Additional basic functions such as locking, memory allocation, and CPU core synchronization

The Poll Mode Driver (IPN3KE) and testpmd application that support the Intel® FPGA PAC N3000 platform use the Ethernet device DPDK API. Refer to DPDK 19.08.0 Functions for information about Ethernet receive and transmit packets.

The DPDK API functions provide a hardware abstraction layer so that you can easily port your application to different hardware platforms. If you create your own custom driver, you must provide functions that override DPDK API interfaces. If the required functionality or hardware acceleration cannot override DPDK API, you can add a new DPDK API functions.

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