GTS Ethernet Intel® FPGA Hard IP User Guide

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ID 817676
Date 10/12/2024
Public
Document Table of Contents
Document Table of Contents x
1. Overview 2. Install and License the GTS Ethernet Intel® FPGA Hard IP 3. Configure and Generate Ethernet Hard IP variant 4. Integrate GTS Ethernet Intel® FPGA Hard IP into Your Application 5. Simulate, Compile, and Validate (MAC+PCS) - Single Instance 6. Simulate, Compile, and Validate (MII PCS Only /PCS66 OTN/PCS66 FlexE) - Single Instance 7. Simulate, Compile, and Validate SyncE - Single Instance 8. Simulate and Compile PTP1588 - Single Instance 9. Simulate, Compile, and Validate - Multiple Instance 10. Simulate, Compile, and Validate - Auto-Negotiation and Link Training 11. Troubleshoot and Diagnose Issues A. Appendix A: Functional Description B. Appendix B: Configuration Registers C. Appendix C: Document Revision History for the GTS Ethernet Intel® FPGA Hard IP User Guide
1. Overview x
1.1. Release Information 1.2. High-Level Functional Overview 1.3. Acronyms 1.4. Agilex™ 5 Ethernet Portfolio and Target Applications 1.5. Agilex™ 5 Ethernet Hard IP Features 1.6. GTS Ethernet Intel® FPGA Hard IP Design Flow
1.5. Agilex™ 5 Ethernet Hard IP Features x
1.5.1. Device Family Support 1.5.2. Device Speed Grade Support 1.5.3. Resource Utilization
3. Configure and Generate Ethernet Hard IP variant x
3.1. Create Quartus Project 3.2. Configure GTS Ethernet Hard IP 3.3. Generate HDL for Synthesis and Simulation 3.4. Generated File Structure 3.5. Generate GTS EHIP Design Example 3.6. Analog Parameter Options
3.5. Generate GTS EHIP Design Example x
3.5.1. Directory Structure
4. Integrate GTS Ethernet Intel® FPGA Hard IP into Your Application x
4.1. Implement Required Clocking 4.2. Implement Required Resets 4.3. Connect the Status Interface 4.4. Connect the MAC Avalon Streaming Client Interface 4.5. Connect the MII PCS Only Client Interface 4.6. Connect the PCS66 Client Interface – FlexE and OTN 4.7. Connect the Precision Time Protocol Interface 4.8. Connect the Ethernet Hard IP Reconfiguration Interface 4.9. Connect the Auto-Negotiation and Link Training
4.1. Implement Required Clocking x
4.1.1. Implement MAC Synchronous Clock Connections to Single Instance 4.1.2. Implement MAC Synchronous Clock Connections to Multiple Instances 4.1.3. Implement Clock Connections to MAC Asynchronous Operation 4.1.4. Implement Clock Connections in Synchronous Ethernet Operation (Sync-E) 4.1.5. Implement Clock Connections in PTP-Based Design
4.2. Implement Required Resets x
4.2.1. Reset Sequence 4.2.2. Connect the GTS Reset Sequencer Intel® FPGA IP
4.2.2. Connect the GTS Reset Sequencer Intel® FPGA IP x
4.2.2.1. Requirements and Considerations for GTS Reset Sequencer Intel® FPGA IP
4.3. Connect the Status Interface x
4.3.1. Use i_stats_snapshot to Read Stats Counters
4.4. Connect the MAC Avalon Streaming Client Interface x
4.4.1. Connect the TX MAC Avalon Streaming Client Interface 4.4.2. Connect the RX MAC Avalon Streaming Client Interface 4.4.3. Connect the MAC Flow Control Interface
4.4.1. Connect the TX MAC Avalon Streaming Client Interface x
4.4.1.1. Drive the Ethernet Packet to the TX MAC Avalon Streaming Client Interface with Disabled Preamble Passthrough 4.4.1.2. Drive the Ethernet Packet on the TX MAC Avalon Streaming Client Interface with Enabled Preamble Passthrough 4.4.1.3. Use i_tx_skip_crc to Control Source Address, PAD, and CRC Insertion 4.4.1.4. Assert the i_tx_error to Invalidate a Packet
4.4.2. Connect the RX MAC Avalon Streaming Client Interface x
4.4.2.1. Receive Ethernet Frame on the RX MAC Avalon Streaming Client Interface with Preamble Passthrough Disabled 4.4.2.2. Receive Ethernet Frame with Preamble Passthrough Enabled 4.4.2.3. Receive Ethernet Frame with Remove CRC bytes Disabled 4.4.2.4. Monitor Status and Errors on the RX MAC Avalon Streaming Client Interface
4.4.3. Connect the MAC Flow Control Interface x
4.4.3.1. Connect the TX MAC Flow Control Interface 4.4.3.2. Connect the RX MAC Flow Control Interface
4.5. Connect the MII PCS Only Client Interface x
4.5.1. Connect the MII PCS Mode TX Interface 4.5.2. Connect the MII PCS Mode RX Interface
4.5.1. Connect the MII PCS Mode TX Interface x
4.5.1.1. Insert Alignment Marker
4.5.2. Connect the MII PCS Mode RX Interface x
4.5.2.1. Receive Alignment Marker
4.6. Connect the PCS66 Client Interface – FlexE and OTN x
4.6.1. Connect the FlexE and OTN Mode TX Interface 4.6.2. Connect the FlexE and OTN Mode RX Interface
4.6.1. Connect the FlexE and OTN Mode TX Interface x
4.6.1.1. Insert Alignment Marker
4.6.2. Connect the FlexE and OTN Mode RX Interface x
4.6.2.1. Receive Alignment Marker
4.7. Connect the Precision Time Protocol Interface x
4.7.1. Connect the Time-of-Day Interface 4.7.2. Connect the TX Two-Step Timestamp Interface 4.7.3. Connect the TX One-Step Timestamp Interface 4.7.4. Connect the RX Timestamp Interface 4.7.5. Connect the PTP Status Interface
4.7.3. Connect the TX One-Step Timestamp Interface x
4.7.3.1. PTP Field Offset for 1-Step Operation
5. Simulate, Compile, and Validate (MAC+PCS) - Single Instance x
5.1. Design Example Features 5.2. Design Example Components 5.3. Simulate the Design Example 5.4. Compile the Design Example 5.5. Validate the Design Example
5.3. Simulate the Design Example x
5.3.1. Simulation Testbench Flow 5.3.2. Verify the Simulation Results
5.5. Validate the Design Example x
5.5.1. Configure the Clocks in Hardware 5.5.2. Program the FPGA 5.5.3. Run the Hardware Test
6. Simulate, Compile, and Validate (MII PCS Only /PCS66 OTN/PCS66 FlexE) - Single Instance x
6.1. Design Example Features 6.2. Design Example Components 6.3. Simulate the Design Example 6.4. Compile the Design Example 6.5. Validate the Design Example
6.3. Simulate the Design Example x
6.3.1. Simulation Testbench Flow 6.3.2. Simulators Output
6.5. Validate the Design Example x
6.5.1. Configure the Clocks in Hardware 6.5.2. Program the FPGA 6.5.3. Run the Hardware Test
7. Simulate, Compile, and Validate SyncE - Single Instance x
7.1. Design Example Features 7.2. Design Example Components 7.3. Simulate the Design Example 7.4. Compile the Design Example 7.5. Validate the Design Example
7.3. Simulate the Design Example x
7.3.1. Simulation Testbench Flow for Single Instance with SyncE 7.3.2. Simulator Output
7.5. Validate the Design Example x
7.5.1. Configure the Clocks in Hardware 7.5.2. Program the FPGA 7.5.3. Run the Hardware Test
8. Simulate and Compile PTP1588 - Single Instance x
8.1. Design Example Features 8.2. Design Example Components 8.3. Simulate the Design Example 8.4. Compile the Design Example 8.5. Validate the Design Example
8.3. Simulate the Design Example x
8.3.1. Simulation Testbench Flow 8.3.2. Simulator Output
8.5. Validate the Design Example x
8.5.1. Configure the Clocks in Hardware 8.5.2. Program the FPGA 8.5.3. Run the Hardware Test
9. Simulate, Compile, and Validate - Multiple Instance x
9.1. Design Example Features 9.2. Design Example Components 9.3. Simulate the Design Example 9.4. Compile the Design Example 9.5. Validate the Design Example
9.3. Simulate the Design Example x
9.3.1. Simulation Testbench Flow for MAC Mode 9.3.2. Simulator Output
9.5. Validate the Design Example x
9.5.1. Configure the Clocks in Hardware 9.5.2. Program the FPGA 9.5.3. Run the Hardware Test
10. Simulate, Compile, and Validate - Auto-Negotiation and Link Training x
10.1. Design Example Features 10.2. Design Example Components 10.3. Simulate the Design Example 10.4. Compile the Design Example 10.5. Validate the Design Example
10.3. Simulate the Design Example x
10.3.1. Simulation Testbench Flow 10.3.2. Simulation Output
10.5. Validate the Design Example x
10.5.1. Configure the Clocks in Hardware 10.5.2. Program the FPGA 10.5.3. Run the Hardware Test
11. Troubleshoot and Diagnose Issues x
11.1. Enable Diagnostic Lookback Modes 11.2. Troubleshoot the Reset Sequence 11.3. Use Signal Tap Analyzer for Troubleshooting
11.1. Enable Diagnostic Lookback Modes x
11.1.1. Internal Serial Loopback 11.1.2. Enable MAC Loopback 11.1.3. Enable PCS Loopback 11.1.4. Enable External Loopback 11.1.5. Packet Client Loopback
11.2. Troubleshoot the Reset Sequence x
11.2.1. Debug the Power Up Reset Sequence 11.2.2. Debug the TX Reset Entry Sequence 11.2.3. Debug the TX Reset Exit Sequence 11.2.4. Debug the RX Reset Entry Sequence 11.2.5. Debug the RX Reset Exit Sequence 11.2.6. Debug the Auto Recovery Reset Sequence
A. Appendix A: Functional Description x
A.1. Datapath Description A.2. GTS Ethernet Intel® FPGA Hard IP MAC A.3. PCS, OTN, and FlexE Modes A.4. Precision Time Protocol Interface A.5. Auto-Negotiation and Link Training
A.2. GTS Ethernet Intel® FPGA Hard IP MAC x
A.2.1. MAC TX Datapath A.2.2. MAC RX Datapath A.2.3. Congestion and Flow Control Using PAUSE or Priority Flow Control (PFC) A.2.4. Link Fault Signaling A.2.5. Order of Ethernet Transmission:
A.2.1. MAC TX Datapath x
A.2.1.1. Insert TX Preamble, Start, and SFD A.2.1.2. Insert Source Address A.2.1.3. Process Length/Type Field A.2.1.4. Pad the Client Frame A.2.1.5. Insert Frame Check Sequence (CRC-32) A.2.1.6. Generate and Insert Inter-Packet Gap
A.2.2. MAC RX Datapath x
A.2.2.1. Process RX Preamble A.2.2.2. Check RX Strict SFD A.2.2.3. Check RX FCS A.2.2.4. Handle RX Malformed Packet A.2.2.5. Remove PAD Bytes and FCS Bytes from RX Frames A.2.2.6. RX Undersized Frames, Oversized Frames, and Frames with Length Errors A.2.2.7. Inter-Packet Gap
A.2.3. Congestion and Flow Control Using PAUSE or Priority Flow Control (PFC) x
A.2.3.1. Conditions Triggering XOFF Frame Transmission A.2.3.2. Conditions Triggering XON Frame Transmission A.2.3.3. Pause Control and Generation Interface A.2.3.4. Pause Control Frame Filtering
A.3. PCS, OTN, and FlexE Modes x
A.3.1. PCS Mode A.3.2. OTN Mode A.3.3. FlexE Mode
A.4. Precision Time Protocol Interface x
A.4.1. Features A.4.2. PTP User Flow A.4.3. Make PTP UI Adjustments A.4.4. Reference Time Interval A.4.5. Minimum and Maximum Reference Time (TAM) Interval for UI Measurement (Hardware)
A.4.2. PTP User Flow x
A.4.2.1. PTP TX User Flow A.4.2.2. PTP RX User Flow
A.4.3. Make PTP UI Adjustments x
A.4.3.1. Adjust TX UI A.4.3.2. Adjust RX UI
B. Appendix B: Configuration Registers x
B.1. Ethernet Avalon® Memory-Mapped Interface Address Space B.2. Packet Client Registers
1. Overview
2. Install and License the GTS Ethernet Intel® FPGA Hard IP
3. Configure and Generate Ethernet Hard IP variant
4. Integrate GTS Ethernet Intel® FPGA Hard IP into Your Application
5. Simulate, Compile, and Validate (MAC+PCS) - Single Instance
6. Simulate, Compile, and Validate (MII PCS Only /PCS66 OTN/PCS66 FlexE) - Single Instance
7. Simulate, Compile, and Validate SyncE - Single Instance
8. Simulate and Compile PTP1588 - Single Instance
9. Simulate, Compile, and Validate - Multiple Instance
10. Simulate, Compile, and Validate - Auto-Negotiation and Link Training
11. Troubleshoot and Diagnose Issues
A. Appendix A: Functional Description
B. Appendix B: Configuration Registers
C. Appendix C: Document Revision History for the GTS Ethernet Intel® FPGA Hard IP User Guide

4.7.2. Connect the TX Two-Step Timestamp Interface

The timestamp iteface sigals ae valid whe i_tx_valid ad i_tx_statofpacket sigals ae high. To iitiate a timestamp equest, the i_ptp_ts_eq sigal must be high. You must also specify a figepit value i the i_ptp_fp sigal.

The diagam below depicts the tasmissio of two packets. The fist packet cotais a two-step timestamp equest with a assiged figepit, FP1.

Figue 48. IEEE 1588 TX Two-Step Timestamp Iteface
  • The timestamp sigals ae oly valid whe i_tx_valid ad i_tx_statofpacket ae both high.
  • i_ptp_ts_eq must be high to iitiate a timestamp equest.
  • The equest must be accompaied by a figepit value o the i_ptp_fp pot.
Note: The figepit values ca be e-used whe the timestamp fo the packet is etued.
The diagam below depicts how a timestamp is etued fo a packet whe a 2-step timestamp equest is issued:
Figue 49. Two-Step Timestamp: Receivig Timestamp fo a Figepit
  • o_ptp_ets_valid is asseted to idicate that o_ptp_ets ad o_ptp_ets_fp have a valid timestamp ifomatio.
  • o_ptp_ets is the timestamp, ad o_ptp_ets_fp is the figepit (idetifie) of the packet fo which the timestamp is fo.
Table 41.  Two-Step TX Timestamp Iteface SigalsThe timestamp is always i 1588 v2 fomat.
Sigal Name Width Desciptio
i_ptp_ts_eq[0:0] 1

Request a 2-step timestamp fo the cuet TX packet

1: Geeate a TX timestamp fo the cuet packet

TX MAC SOP-Aliged Cliet Iteface:

i_ptp_ts_eq[0] is valid oly whe i_tx_valid = 1 ad i_tx_statofpacket = 1

i_ptp_fp[<w>-1:0]

<w> = Timestamp figepit width selected i GUI optio

 </w>

Figepit fo cuet TX Packet

This bus is used to assig a 8 bit “figepit” to a TX packet that is beig tasmitted, so that the TX egess timestamp associated with the TX packet ca be idetified – the timestamp etus with the same figepit.

TX MAC SOP-Aliged Cliet Iteface:

i_ptp_fp[<w>-1:0] is valid oly whe i_tx_valid = 1 ad i_tx_statofpacket = 1

Used fo both 2-step ad 1-step PTP packets.

Itel ecommeds usig a lage age of figepits, to avoid the possibility of assigig the same figepit to 2 TX packets that ae beig pocessed.

o_ptp_ets_valid[0:0] 1

TX Egess Timestamp Valid

1: The figepit ad egess timestamp pots ae pesetig valid output o this cycle.
o_ptp_ets[95:0] 96

TX Egess Timestamp

This bus is used to peset a egess timestamp fo the TX Packet that was tasmitted with the figepit give by o_ptp_ets_fp

o_ptp_ets[95:0] is valid oly whe o_ptp_ets_valid[0] = 1

Used to peset TX egess timestamps fo both 2-step ad 1-step PTP packets.

The timestamp is i 1588v2 fomat (96b).

The timestamp is fo the packet whose figepit matches the figepit with the egess timestamp.

The timestamp idicates the estimated time at which the fist bit of the stat-of-packet block fo the TX packet is tasmitted fom the tx_seial pi.

All timestamps ae efeeced to the copy of the Time-of-Day maitaied o the EHIP.

o_ptp_ets_fp[<w>-1:0]

<w> = Timestamp figepit width selected i GUI optio

 <w>

TX Egess Timestamp Figepit

This bus pesets the figepit fo the cuet 2-step egess timestamp. The figepit ca be used to detemie which TX Packet the timestamp belogs with.

o_ptp_ets_fp[<w>-1:0] is valid oly whe o_ptp_ets_valid[0] = 1

Used to peset TX egess timestamps figepits fo both 2-step ad 1-step PTP packets.
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