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

3. IFPGA Base Code Design

The IFPGA base driver provides an API for enumeration and a data structure for the enumeration result.

The Intel FPGA factory image implements a static region called the FPGA Interface Unit (FIU). This static region can have different features. To discover the FIU features, the IFPGA driver walks through the device feature list in the Intel® Arria® 10 FPGA device memory.

In the example below, after enumeration, the IFPGA code finds the FIU, port, accelerator and their sub features. The ifpga_hw data structure stores this information.

Figure 6. IFPGA Hardware Feature List

The ifpga_hw data structure stores this information. 

struct ifpga_hw {
struct opae_adapter *adapter;
struct opae_adapter_data_pci *pci_data;
struct ifpga_fme_hw fme;
struct ifpga_port_hw port[MAX_FPGA_PORT_NUM];
};
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