Ethernet Subsystem Intel® FPGA IP User Guide

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ID 773413
Date 12/08/2023
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Document Table of Contents
Document Table of Contents x
1. Introduction 2. Feature Description 3. Ethernet Subsystem Parameters 4. Subsystem IP Blocks 5. Interfaces and Signals 6. Recommended Clock Connections 7. Register Descriptions 8. Ethernet SS IP Example Design 9. Document Revision History for the Ethernet Subsystem Intel FPGA IP User Guide
1. Introduction x
1.1. Supported Features 1.2. Device Family Support 1.3. Release Information 1.4. Resource Utilization 1.5. Getting Started
2. Feature Description x
2.1. Ethernet Subsystem Intel FPGA IP Overview 2.2. Supported Features
3. Ethernet Subsystem Parameters x
3.1. Parameter Editor Parameters 3.2. E-Tile Port Enablement Guidelines and Restrictions 3.3. F-Tile Ethernet Port to PMA Channel Mapping
4. Subsystem IP Blocks x
4.1. AXI Stream Bridge 4.2. CSR Address Decoder 4.3. Subsystem Abstraction Layer (SAL) 4.4. Dynamic Reconfiguration Extension Subsystem 4.5. IEEE 1588v2 PTP 4.6. Auto-Negotation and Link Training 4.7. Priority Flow Control
4.3. Subsystem Abstraction Layer (SAL) x
4.3.1. Subsystem Abstraction Layer (SAL) Commands
4.3.1. Subsystem Abstraction Layer (SAL) Commands x
4.3.1.1. NOP(0x0) 4.3.1.2. get_hssi_profile for E-Tile 4.3.1.3. get_hssi_profile for F-Tile 4.3.1.4. set_hssi_profile for E-Tile 4.3.1.5. set_hssi_profile for F-Tile 4.3.1.6. read_MAC_statistic 4.3.1.7. get_mtu 4.3.1.8. set_csr for E-Tile 4.3.1.9. set_csr for F-Tile 4.3.1.10. get_csr for E-Tile 4.3.1.11. get_csr for F-Tile 4.3.1.12. enable_loopback for E-Tile 4.3.1.13. enable_loopback for F-Tile 4.3.1.14. disable_loopback for E-Tile 4.3.1.15. disable_loopback for F-Tile 4.3.1.16. Reset MAC Statistics 4.3.1.17. set_mtu for F-Tile 4.3.1.18. Ncsi_get_link_status 4.3.1.19. Reserved 4.3.1.20. firmware_version (0xFF)
4.5. IEEE 1588v2 PTP x
4.5.1. TX PTP Classifier
5. Interfaces and Signals x
5.1. AXI4 Interfaces 5.2. Serial Interface 5.3. Clocks 5.4. Resets
5.1. AXI4 Interfaces x
5.1.1. AXI-Lite CSR 5.1.2. AXI-ST Client Interface 5.1.3. AXI-ST PHY Direct 5.1.4. AXI-ST PTP 5.1.5. Flow Control
6. Recommended Clock Connections x
6.1. Driving Multiple Ports with the Same Clock 6.2. Clock Connections for MAC Async Client FIFO 6.3. F-Tile Clock Connections for PTP Synchronous and Asynchronous cases 6.4. Clock Connections for SyncE Operation on E-Tile 6.5. Clock Connections for SyncE Operation on F-Tile 6.6. F-Tile PMA and FEC Direct PHY IP Clock Output
7. Register Descriptions x
7.1. Subsystem Registers 7.2. Port Registers 7.3. F-Tile Address Maps 7.4. F-Tile ANLT Port Register Map 7.5. F-Tile PTP Tile Adapter Register Map 7.6. F-Tile DR Controller Register Map
7.1. Subsystem Registers x
7.1.1. Device Feature Header Lo 7.1.2. Device Feature Header Hi 7.1.3. Feature GUID_L 7.1.4. Feature GUID_H 7.1.5. Feature CSR ADDR 7.1.6. Feature CSR Size Group 7.1.7. Version 7.1.8. Feature List 7.1.9. Interface Attribute Port X Parameters 7.1.10. HSSI Command/Status 7.1.11. HSSI Control/Address 7.1.12. HSSI Read Data 7.1.13. HSSI Write Data 7.1.14. HSSI Ethernet Port X Status 7.1.15. Priority Flow Control 7.1.16. Priority Flow Control TX Queue Statistics 7.1.17. Priority Flow Control RX Queue Statistics 7.1.18. Priority Flow Control TX Queue Threshold 7.1.19. Priority Flow Control RX Queue Threshold 7.1.20. F-Tile DR Controller Status
7.2. Port Registers x
7.2.1. PTP Packet Classifier Registers
7.2.1. PTP Packet Classifier Registers x
7.2.1.1. Recognized and Unrecognized Packet Counters 7.2.1.2. Parse Graph Specific Packet Counters
8. Ethernet SS IP Example Design x
8.1. Steps to Generate the Example Design 8.2. Supported Simulators 8.3. Running the Simulation Tests 8.4. Running the Hardware Tests
8.3. Running the Simulation Tests x
8.3.1. Steps to Simulate the Design Example
8.4. Running the Hardware Tests x
8.4.1. Supported Boards 8.4.2. Steps to Compile the Design Example for Hardware 8.4.3. Steps to Run the Design Example on Hardware
8.4.2. Steps to Compile the Design Example for Hardware x
8.4.2.1. Steps to generate Routing Delay for PTP Enabled Designs
1. Introduction
2. Feature Description
3. Ethernet Subsystem Parameters
4. Subsystem IP Blocks
5. Interfaces and Signals
6. Recommended Clock Connections
7. Register Descriptions
8. Ethernet SS IP Example Design
9. Document Revision History for the Ethernet Subsystem Intel FPGA IP User Guide

4.3.1.9. set_csr for F-Tile

set_csr SAL command is an indirect CSR access to write to HSSI SS CSRs. The CSR address and write data are written into HSSI Address/Write Data CSRs respectively and then write to HSSI Command/Status CSR to trigger the write CSR operation.

Two of the examples on how the Address[25:2] field in the HSSI Control/Address CSR is determined is shown below.

Assuming user would like to access Tx MAC Link Fault Config register (for detail about register map, refer to individual Ethernet User Guide) for Agilex F-tile channel 8 (1x25GbE).

Tx MAC Link Fault Config register byte offset = 0x1200

Agilex F-tile transceiver channel 8 base address = 0x1200000 (For the base address of each F-tile channel, refer to the F-Tile Address Maps.

AXI-Lite CSR read request address = 0x1200 + 0x1200000 = 0x1201200 (byte addressing)

HSSI Control/Address CSR Address[25:2] field = 0x1201200 / 4 = 0x480480

PTP Packet Classifier registers use the same access mechanism as Ethernet Reconfig registers.

The next example shows user accesses RS-FEC e25g_s0_rsfec_top register (for details about E-tile register address map, refer to E-tile Transceiver User Guide) for Agilex F-tile channel 10 (1x50GbE segment 1).

e25g_s0_rsfec_top register byte offset = 0x64C0

Agilex F-tile transceiver channel 10 base address = 0x160_0000

AXI-Lite CSR write request address = 0x160_0000 + 0x64C0 = 0x160_64C0

HSSI Control/Address CSR Address[25:2] field = 0x160_64C0 / 4 = 0x581930

HSSI Command/Status CSR Register Offset field is ignored as the set_csr only supports 32b register access.

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