Intel® Acceleration Stack User Guide: Intel® FPGA Programmable Acceleration Card N3000-N/2

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ID 683362
Date 11/01/2021
Public
Document Table of Contents
Document Table of Contents x
1. About this Document 2. System Requirements 3. Hardware Installation 4. Installing the OPAE Software 5. Identify the Intel® MAX® 10 BMC Version 6. Intel XL710 Driver Installation and Firmware Update 7. Updating the Retimer Firmware 8. OPAE Tools 9. Sample Test: Native Loopback 10. Configuring Ethernet Interfaces 11. Testing Network Loopback Using Data Plane Development Kit (DPDK) 12. Graceful Shutdown 13. Single Event Upset (SEU) 14. Document Revision History for Intel Acceleration Stack User Guide: Intel® FPGA PAC N3000-N/2 A. Troubleshooting B. fpgabist Sample Output
1. About this Document x
1.1. Acronym List
3. Hardware Installation x
3.1. Installing the Intel® FPGA PAC N3000-N/2
4. Installing the OPAE Software x
4.1. Install the Release Package
4.1. Install the Release Package x
4.1.1. Remove Previous OPAE Packages 4.1.2. Install the Acceleration Stack for Runtime 4.1.3. Install the Acceleration Stack for Development 4.1.4. Verify the OPAE Installation
4.1.2. Install the Acceleration Stack for Runtime x
4.1.2.1. For RHEL 4.1.2.2. For CentOS
4.1.2.2. For CentOS x
4.1.2.2.1. Download kernel 4.19 4.1.2.2.2. Build and Install kernel 4.19 4.1.2.2.3. Install OPAE in kernel 4.19
5. Identify the Intel® MAX® 10 BMC Version x
5.1. FPGA Factory Image Overview
6. Intel XL710 Driver Installation and Firmware Update x
6.1. Installing the Intel XL710 Driver 6.2. Updating the Intel XL710 Firmware
8. OPAE Tools x
8.1. Using fpgasupdate 8.2. Using fpgainfo 8.3. Test PCIe and External Memories with fpgabist 8.4. Test Network Loopback using fpgadiag
10. Configuring Ethernet Interfaces x
10.1. Modifying the Interface Maximum Transmission Unit (MTU) Size 10.2. Setting Forward Error Correction (FEC) Mode 10.3. Ethernet Pause Flow Control 10.4. Get Link Statistics 10.5. Ethernet Link Status
11. Testing Network Loopback Using Data Plane Development Kit (DPDK) x
11.1. Test Using an External Traffic Generator 11.2. Revert Back from DPDK to OPAE
12. Graceful Shutdown x
12.1. Using OPAE
13. Single Event Upset (SEU) x
13.1. OPAE Handling of SEU
A. Troubleshooting x
A.1. If OPAE installation verification fails, how to install OPAE manually?
B. fpgabist Sample Output x
B.1. For 4x25G Configuration B.2. For 2x2x25G Configuration
1. About this Document
2. System Requirements
3. Hardware Installation
4. Installing the OPAE Software
5. Identify the Intel® MAX® 10 BMC Version
6. Intel XL710 Driver Installation and Firmware Update
7. Updating the Retimer Firmware
8. OPAE Tools
9. Sample Test: Native Loopback
10. Configuring Ethernet Interfaces
11. Testing Network Loopback Using Data Plane Development Kit (DPDK)
12. Graceful Shutdown
13. Single Event Upset (SEU)
14. Document Revision History for Intel Acceleration Stack User Guide: Intel® FPGA PAC N3000-N/2
A. Troubleshooting
B. fpgabist Sample Output

10.2. Setting Forward Error Correction (FEC) Mode

The Intel® FPGA PAC N3000-N/2 supports different forward error correction (FEC) modes to enhance data reliability for 25GbE network configurations. The default FEC mode is Reed Solomon FEC. The following FEC modes are available:
Table 7.  FEC Modes
fec_mode Mode
no No FEC
kr Fire Code Forward Error Correction (IEEE 802.3 Clause 74)
rs Reed Solomon Forward Error Correction (IEEE 802.3 Clause 108)
To set FEC mode: 
$ sudo fecmode -B <bus> <mode>

<mode> = ‘no’, ‘kr’, ‘rs’
<bus> = PCIe bus of FPGA in the format “0xYZ”
Note: The fecmode command causes a board level rsu event while changing FEC modes. The rsu event causes a board level reset which causes previously configured Ethernet settings to revert back to default settings. Intel recommends you first set FEC mode, then configure Ethernet and other board level settings. The rsu event may also cause the PCIe bus number to change.
To get FEC mode: 
$ fecmode -B <bus>

<bus> = PCIe bus of FPGA in the format “0xYZ”
For example: 
$ fecmode -B 0xb3
FEC mode in current driver: rs
FEC mode in current hardware: rs

$ sudo fecmode -B 0xb3 kr
reloading driver with new parameter 'kr'
performing remote system update
2019-11-14 10:00:34,121 - [[pci_address(0000:b3:00.0), pci_id(0x8086, 0x0b30)]] performing RSU operation
2019-11-14 10:00:34,123 - [[pci_address(0000:ae:00.0), pci_id(0x8086, 0x2030)]] removing device from PCIe bus
2019-11-14 10:00:34,124 - waiting 10 seconds for boot
2019-11-14 10:00:44,135 - rescanning PCIe bus: /sys/devices/pci0000:ae/pci_bus/0000:ae
2019-11-14 10:00:49,119 - RSU operation complete
Done

$ fecmode -B 0xb3
FEC mode in configuration: kr
FEC mode in current driver: kr
FEC mode in current hardware: kr
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