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ConnectX-5 Ex
User Manual
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Mellanox ConnectX-5 Ex User Manual

Mellanox ConnectX®-5 Ex Ethernet Single and Dual QSFP28 Port Adapter Cards User Manual
P/N:
MCX516A-BDAT, MCX515A-GCAT, MCX516A-GCAT, MCX515A-CCAT, MCX516A-CCAT, MCX516A-CDAT
Rev 1.6
www.mellanox.com
Mellanox Technologies
Doc #: MLNX-15-51360 2Mellanox Technologies

Table of Contents

Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
List of Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
List of Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Chapter 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.1 Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.2 Features and Benefits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.3 Operating Systems/Distributions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.4 Connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Chapter 2 Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.1 Ethernet QSFP28 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.2 PCI Express Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.3 LED Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Chapter 3 Hardware Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.1 System Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.1.1 Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.2 Operating Systems/Distributions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.2.1 Software Stacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.4 Pre-Installation Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.5 Bracket Installation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.5.1 Removing the Existing Bracket. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.5.2 Installing the New Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.6 Card Installation Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.7 Cables and Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.7.1 Cable Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.8 Adapter Card Un-installation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.8.1 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.8.2 Card Un-installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.9 Identify the Card in Your System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.9.1 On Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.9.2 On Linux . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Rev 1.0 1Mellanox Technologies
Chapter 4 Driver Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.1 Linux. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.1.1 Hardware and Software Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.1.2 Downloading Mellanox OFED. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.1.3 Installing Mellanox OFED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.1.3.1 Installation Script . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.1.3.2 Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.1.3.3 Installation Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.1.3.4 Installation Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.1.3.5 openibd Script . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.1.3.6 Driver Load Upon System Boot. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.1.3.7 mlnxofedinstall Return Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.1.4 Uninstalling Mellanox OFED. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.1.5 Installing MLNX_OFED Using YUM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.1.5.1 Setting up MLNX_OFED YUM Repository . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.1.5.2 Installing MLNX_OFED Using the YUM Tool . . . . . . . . . . . . . . . . . . . . . . . 30
4.1.5.3 Uninstalling Mellanox OFED Using the YUM Tool. . . . . . . . . . . . . . . . . . . 32
4.1.5.4 Installing MLNX_OFED Using apt-get Tool. . . . . . . . . . . . . . . . . . . . . . . . . 32
4.1.5.5 Setting up MLNX_OFED apt-get Repository . . . . . . . . . . . . . . . . . . . . . . . 32
4.1.5.6 Installing MLNX_OFED Using the apt-get Tool . . . . . . . . . . . . . . . . . . . . . 33
4.1.5.7 Uninstalling Mellanox OFED Using the apt-get Tool. . . . . . . . . . . . . . . . . 34
4.1.6 Updating Firmware After Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
4.1.6.1 Updating the Device Online . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
4.1.6.2 Updating the Device Manually . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
4.1.6.3 Updating the Device Firmware Automatically upon System Boot . . . . . 35
4.1.7 UEFI Secure Boot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.1.7.1 Enrolling Mellanox's x.509 Public Key On your Systems . . . . . . . . . . . . . 35
4.1.7.2 Removing Signature from kernel Modules . . . . . . . . . . . . . . . . . . . . . . . . 36
4.1.8 Performance Tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4.2 Windows Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.2.1 Hardware and Software Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.2.2 Downloading Mellanox WinOF-2 Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.2.3 Installing Mellanox WinOF-2 Driver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
4.2.3.1 Attended Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
4.2.3.2 Unattended Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
4.2.4 Installation Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
4.2.5 Extracting Files Without Running Installation. . . . . . . . . . . . . . . . . . . . . . . 46
4.2.6 Uninstalling Mellanox WinOF-2 Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
4.2.6.1 Attended Uninstallation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
4.2.6.2 Unattended Uninstallation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
4.2.7 Firmware Upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
4.2.8 Deploying the Driver on a Nano Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Rev 1.0 2Mellanox Technologies
4.2.8.1 Offline Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
4.2.8.2 Online Update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
4.3 VMware Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
4.3.1 Hardware and Software Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
4.3.2 Installing Mellanox NATIVE ESXi Driver for VMware vSphere . . . . . . . . . . 51
4.3.3 Removing the Previous Mellanox Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
4.3.4 Firmware Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Chapter 5 Updating Adapter Card Firmware. . . . . . . . . . . . . . . . . . . . . . . . . . 53
5.1 Firmware Update Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Chapter 6 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
6.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
6.2 Linux. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
6.3 Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Chapter 7 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
7.1 MCX516A-BDAT Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
7.2 MCX515A-GCAT Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
7.3 MCX516A-GCAT Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
7.4 MCX515A-CCAT Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
7.5 MCX516A-CCAT Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
7.6 MCX516A-CDAT Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
7.7 Airflow Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
7.8 Adapter Card LED Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
7.9 Board Mechanical Drawing and Dimensions . . . . . . . . . . . . . . . . . . . . . . . 64
7.10 Bracket Mechanical Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Appendix A Finding the MAC and Serial Number on the Adapter Card . . . . 67
Appendix B Safety Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Appendix C Avertissements de sécurité d’installation (Warnings in French) 72
Appendix D Sicherheitshinweise (Warnings in German) . . . . . . . . . . . . . . . . 74
Appendix E Advertencias de seguridad para la instalación (Warnings in Spanish) 76
Rev 1.0 3Mellanox Technologies

List of Tables

Table 1: Revision History Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 2: Documents List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 3: Dual-port 40Gb/s Ethernet Adapter Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 4: Single and Dual-port 50Gb/s Ethernet Adapter Cards . . . . . . . . . . . . . . . . . . . . . .10
Table 5: Single and Dual-port 100Gb/s Ethernet Adapter Cards . . . . . . . . . . . . . . . . . . . . . 10
Table 6: Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 7: Hardware and Software Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Table 8: Installation Results. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Table 9: mlnxofedinstall Return Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Table 10: Hardware and Software Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Table 11: Software and Hardware Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Table 12: General Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Table 13: Linux Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Table 14: Windows Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Table 15: MCX516A-BDAT Specification Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Table 16: MCX515A-GCAT Specification Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Table 17: MCX516A-GCAT Specification Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Table 18: MCX515A-CCAT Specification Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
Table 19: MCX516A-CCAT Specification Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
Table 20: MCX516A-CDAT Specification Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Table 21: Airflow Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Table 22: Physical and Logical Link Indications (Ethernet Mode). . . . . . . . . . . . . . . . . . . . . . 63
Rev 1.0 4Mellanox Technologies

List of Figures

Figure 1: PCI Device (Example) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 2: Installation Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Figure 3: Mechanical Drawing of the Dual-port Adapter Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Figure 4: Single-port Tall Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Figure 5: Dual-port Tall Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Figure 6: MCX516A-BDAT Board Label (Example) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Figure 7: MCX515A-GCAT Board Label (Example) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Figure 8: MCX516A-GCAT Board Label (Example) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Figure 9: MCX515A-CCAT Board Label (Example) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Figure 10: MCX516A-CCAT Board Label Example) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Figure 11: MCX516A-CDAT Board Label (Example) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Rev 1.0 5Mellanox Technologies

Revision History

This document was printed on April 24, 2018.
Table 1 - Revision History Table
Date Rev Comments/Changes
January 2018 1.6 • Added a note to Hardware on page 14.
November 2017 1.5 • Updated Adapter LED Operations Airflow Specifications on page 67
September 2017 1.4 • Added MCX516A-BDAT support across document and added the following:
• Dual-port 40Gb/s Ethernet Adapter Cards on page 9
• MCX516A-BDAT Specifications on page 57
• MCX516A-BDAT Board Label (Example) on page 67.
• Updated the following sections:
• Linux on page 22
• MCX515A-GCAT Specification Table on page 58
• MCX516A-GCAT Specification Table on page 59
• MCX515A-CCAT Specification Table on page 60
• MCX516A-CCAT Specification Table on page 61
• Airflow Specifications on page 63
August 2017 1.3 • Added MCX515A-GCAT and MCX516A-GCAT support across document and
added the following:
• Single and Dual-port 50Gb/s Ethernet Adapter Cards on page 10.
• MCX516A-BDAT Specifications on page 58
• MCX516A-GCAT Specifications on page 60
• Mechanical Drawing of the Single-port Adapter Cards on page 66
• Single-port Tall Bracket on page 65
• MCX516A-BDAT Board Label (Example) on page 67
• MCX516A-GCAT Board Label (Example) on page 68
• Updated the following specifications tables:
• MCX515A-CCAT Specifications on page 60
• MCX516A-CCAT Specifications on page 61
• MCX516A-CDAT Specifications on page 62
July 2017 1.2 • Updated the following specifications tables:
• MCX515A-CCAT Specifications on page 67
• MCX516A-CCAT Specifications on page 68
• MCX516A-CDAT Specifications on page 69
• Updated Adapter LED Operations Airflow Specifications on page 67
April 2017 1.1 • Updated Product Overview on page 9
• Updated Card Installation Instructions on page 15
April 2018 1.0 First Draft
March 2017 1.0 First release
6Mellanox Technologies

About This Manual

This User Manual describes Mellanox Technologies ConnectX®-5 Ethernet Single and Dual QSFP28 port PCI Express x16 adapter cards. It provides details as to the interfaces of the board, specifications, required software and firmware for operating the board, and relevant documentation.

Intended Audience

This manual is intended for the installer and user of these cards. The manual assumes basic familiarity with Ethernet network and architecture specifications.

Related Documentation

Table 2 - Documents List
Mellanox Firmware Tools (MFT) User Manual
Document no. 2204UG
Mellanox Firmware Utility (mlxup) User Manual and Release Notes
Mellanox OFED for Linux User Manual
Document no. 2877
Mellanox OFED for Linux Release Notes Document no. 2877
WinOF-2 for Windows User Manual
Document no. MLX-15-3280
Mellanox OFED for Windows Driver Release Notes
Mellanox VMware for Ethernet User Manual Document no. MLNX-15-4896
Mellanox VMware for Ethernet Release Notes Release notes for Mellanox ConnectX®-4 NATIVE ESXi stack:
User Manual describing the set of MFT firmware management tools for a single node. See http://www.mellanox.com => Products => Software => Firmware Tools
Mellanox firmware update and query utility used to update the firmware. See http://www.mellanox.com => Products => Software => Firmware Tools => mlxup Firmware Utility
User Manual describing OFED features, performance, Band diagnostic, tools content and configuration. See http://www.mellanox.com => Products => Software => InfiniBand/VPI Drivers => Mellanox OpenFabrics Enterprise Distribution for Linux (MLNX_OFED)
Release Notes for Mellanox OFED for Linux driver kit for Mel­lanox adapter cards: See: http://www.mellanox.com =>Products => Software => InfiniBand/VPI Drivers => Linux SW/Drivers => Release Notes
User Manual describing WinOF-2 features, performance, Ether­net diagnostic, tools content and configuration. See http://www.mellanox.com => Products => Software => Windows SW/Drivers
Release notes for Mellanox Technologies' MLNX_EN for Linux driver kit for Mellanox adapter cards: See http://www.mellanox.com => Products => Software => Ethernet Drivers => Mellanox OFED for Windows => WinOF­2 Release Notes
User Manual describing the various components of the Mella­nox ConnectX®-4 NATIVE ESXi stack: See => http://
www.mellanox.com Products => Software => Ethernet Drivers
=> VMware Driver => User Manual v4.15.2.0
See => http://www.mellanox.com Software => Ethernet Drivers => VMware Driver => Release Notes
Rev 1.0 7Mellanox Technologies
IEEE Std 802.3 Specification This is the IEEE Ethernet specification
http://standards.ieee.org/getieee802
PCI Express 3.0 Specifications Industry Standard PCI Express 3.0 Base and Card Electrome-
chanical Specifications
https://pcisig.com/specifications

Document Conventions

When discussing memory sizes, MB and MBytes are used in this document to mean size in mega Bytes. The use of Mb or Mbits (small b) indicates size in mega bits. In this document PCIe is used to mean PCI Express.

Technical Support

Customers who purchased Mellanox products directly from Mellanox are invited to contact us through the following methods.
•URL: http://www.mellanox.com => Support
• E-mail: support@mellanox.com
• Tel: +1.408.916.0055 Customers who purchased Mellanox M-1 Global Support Services, please see your contract for
details regarding Technical Support.

Customers who purchased Mellanox products through a Mellanox approved reseller should first seek assistance through their reseller.

Firmware Updates

The Mellanox support downloader contains software, firmware and knowledge database infor­mation for Mellanox products. Access the database from the Mellanox Support web page,
http://www.mellanox.com => Support
Or use the following link to go directly to the Mellanox Support Download Assistant page,
http://www.mellanox.com/supportdownloader/.
Rev 1.0 8Mellanox Technologies

1 Introduction

This is the User Guide for Mellanox Technologies Ethernet adapter cards based on the Con­nectX®-5 integrated circuit device. These adapters connectivity provide the highest performing and most flexible interconnect solution for PCI Express Gen 3.0/4.0 servers used in Enterprise Data Centers, High-Performance Computing, and Embedded environments.
This chapter covers the following topics:
• Section 1.1, “Product Overview”, on page 9
• Section 1.2, “Features and Benefits”, on page 11
• Section 1.3, “Operating Systems/Distributions”, on page 12
• Section 1.4, “Connectivity”, on page 12

1.1 Product Overview

The following section provides the ordering part number, port speed, number of ports, and PCI Express speed. Each adapter comes with two bracket heights - short and tall.
Table 3 - Dual-port 40Gb/s Ethernet Adapter Cards
Introduction
Ordering Part Number (OPN)
Data Transmission Rate
Network Connector Types
PCI Express (PCIe) SerDes Speed
RoHS
Adapter IC Part Number
Device ID (decimal)
MCX516A-BDAT
Ethernet: 1/10/25/40 Gb/s
Dual-port QSFP28
PCIe Gen 3.0 x16 8.0GT/s PCIe Gen 4.0 x16 16.0GT/s
Note: This card has been tested and certified with PCIe 3.0 serv­ers. PCIe 4.0 interface will be tested and certified when servers with Gen 4.0 support become available.
R6
MT28808A0-FCCF-EV
4121 for Physical Function (PF) 4122 for Virtual Function (VF)
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9Mellanox Technologies
Table 4 - Single and Dual-port 50Gb/s Ethernet Adapter Cards
Introduction
Ordering Part Number (OPN)
Data Transmission Rate
Network Connector Types
PCI Express (PCIe) SerDes Speed
RoHS
Adapter IC Part Number
Device ID (decimal)
MCX515A-GCAT - Single-port card MCX516A-GCAT - Dual-port card
Ethernet: 1/10/25/40/50 Gb/s
Single and dual-port QSFP28
PCIe 3.0 x16 8GT/s
R6
MT27808A0-FCCF-EV
4119 for Physical Function (PF) 4120 for Virtual Function (VF)
Table 5 - Single and Dual-port 100Gb/s Ethernet Adapter Cards
Ordering Part Number (OPN)
Data Transmission Rate
Network Connector Types
PCI Express (PCIe) SerDes Speed
RoHS
Single-port card: MCX515A-CCAT Dual-port cards: MCX516A-CCAT, MCX516A-CDAT
Ethernet: 1/10/25/40/50/56/100 Gb/s
Single and dual-port QSFP28
MCX515A-CCAT, MCX516A-CCAT: PCIe 3.0 x16 8GT/s Note: PCIe 3.0 x16 bus can supply a maximum bandwidth of 128Gb/s only (=16 * 8GT/s, including overhead), and therefore cannot support 200Gb/s when both network ports of MCX516A­CCAT run at 100Gb/s. MCX516A-CDAT: PCIe 4.0 x16 16GT/s
Note: This card has been tested and certified with PCIe 3.0 serv­ers. PCIe 4.0 interface will be tested and certified when servers with Gen 4.0 support become available. Note: PCIe 4.0 x16 bus can supply a maximum bandwidth of 256Gb/s (=16 * 16GT/s, including overhead), and can support 200Gb/s when both network ports of MCX516A-CDAT run at 100Gb/s.
R6
Rev 1.0
Adapter IC Part Number
Device ID (decimal)
MCX515A-CCAT, MCX516A-CCAT: MT27808A0-FCCF-EV MCX516A-CDAT: MT28808A0-FCCF-EV
MCX515A-CCAT, MCX516A-CCAT: 4119 for Physical Func-
tion (PF) and 4120 for Virtual Function (VF) MCX516A-CDAT: 4121 for Physical Function (PF) and 4122 for Virtual Function (VF)
10Mellanox Technologies

1.2 Features and Benefits

Table 6 - Features
a
Introduction
PCI Express (PCIe)
Up to 100 Gigabit Ethernet
Memory
Overlay Networks
RDMA and RDMA over
Converged Ethernet (RoCE)
Mellanox PeerDirect™
CPU Offload
Uses PCIe Gen 3.0 (8GT/s) and Gen 4.0 (16GT/s) through an x16 edge con­nector. Gen 1.1 and 2.0 compatible.
Mellanox adapters comply with the following IEEE 802.3 standards: – 100GbE/ 50GbE / 40GbE / 25GbE / 10GbE / 1GbE – IEEE 802.3bj, 802.3bm 100 Gigabit Ethernet – IEEE 802.3by, Ethernet Consortium25, 50 Gigabit Ethernet, supporting all FEC modes – IEEE 802.3ba 40 Gigabit Ethernet – IEEE 802.3ae 10 Gigabit Ethernet – IEEE 802.3ap based auto-negotiation and KR startup – Proprietary Ethernet protocols (20/40GBASE-R2, 50GBASE-R4) – IEEE 802.3ad, 802.1AX Link Aggregation – IEEE 802.1Q, 802.1P VLAN tags and priority – IEEE 802.1Qau (QCN) – Congestion Notification – IEEE 802.1Qaz (ETS) – IEEE 802.1Qbb (PFC) – IEEE 802.1Qbg – IEEE 1588v2 – Jumbo frame support (9.6KB)
PCI Express - stores and accesses Ethernet fabric connection information and packet data. SPI Quad - includes 128Mbit SPI Quad Flash device (W25Q128FVSIG device by ST Microelectronics) VPD EEPROM - The EEPROM capacity is 128Kbit.
In order to better scale their networks, data center operators often create overlay networks that carry traffic from individual virtual machines over logical tunnels in encapsulated formats such as NVGRE and VXLAN. While this solves net work scalability issues, it hides the TCP packet from the hardware offloading engines, placing higher loads on the host CPU. ConnectX-5 effectively addresses this by providing advanced NVGRE and VXLAN hardware offload ing engines that encapsulate and de-capsulate the overlay protocol.
ConnectX-5, utilizing IBTA RDMA (Remote Data Memory Access) and RoCE (RDMA over Converged Ethernet) technology, delivers low-latency and high­performance over Band and Ethernet networks. Leveraging data center bridging (DCB) capabilities as well as ConnectX-5 advanced congestion control hard ware mechanisms, RoCE provides efficient low-latency RDMA services over Layer 2 and Layer 3 networks.
PeerDirect™ communication provides high efficiency RDMA access by elimi­nating unnecessary internal data copies between components on the PCIe bus (for example, from GPU to CPU), and therefore significantly reduces applica tion run time. ConnectX-5 advanced acceleration technology enables higher cluster efficiency and scalability to tens of thousands of nodes.
Adapter functionality enabling reduced CPU overhead allowing more available CPU for computation tasks.
Open VSwitch (OVS) offload using ASAP
• Flexible match-action flow tables
• Tunneling encapsulation / decapsulation
2(TM)
-
-
-
-
Rev 1.0
11Mellanox Technologies
Introduction
NC-SI
a
Support for port-based Quality of Service enabling various application require­ments for latency and SLA.
ConnectX-5 provides dedicated adapter resources and guaranteed isolation and protection for virtual machines within the server.
A consolidated compute and storage network achieves significant cost-perfor­mance advantages over multi-fabric networks. Standard block and file access protocols can leverage RDMA for high-performance storage access.
• NVMe over Fabric offloads for target machine
• Erasure Coding
• T10-DIF Signature Handover
ConnectX-5 SR-IOV technology provides dedicated adapter resources and guaranteed isolation and protection for virtual machines (VM) within the server.
The adapter supports a Network Controller Sideband Interface (NC-SI), MCTP over SMBus and MCTP over PCIe - Baseboard Management Controller inter­face.
• Tag Matching and Rendezvous Offloads
• Adaptive Routing on Reliable Transport
• Burst Buffer Offloads for Background Checkpointing
.
Table 6 - Features
Quality of Service (QoS)
Hardware-based I/O
Virtualization
Storage Acceleration
SR-IOV
High-Performance
Accelerations
a. This section describes hardware features and capabilities. Please refer to the driver release notes for feature availabil-
ity. See Related Documentation

1.3 Operating Systems/Distributions

• RHEL/CentOS
•Windows
• FreeBSD
•VMware
• OpenFabrics Enterprise Distribution (OFED)
• OpenFabrics Windows Distribution (WinOF-2)

1.4 Connectivity

• Interoperable with 1/10/25/40/50/100 Gb/s Ethernet switches
• Passive copper cable with ESD protection
• Powered connectors for optical and active cable support
Rev 1.0
12Mellanox Technologies

2 Interfaces

Each adapter card includes the following interfaces:
• “Ethernet QSFP28 Interface”
• “PCI Express Interface”
• “LED Interface”
The adapter card includes special circuits to protect from ESD shocks to the card/server when plugging copper cables.

2.1 Ethernet QSFP28 Interface

The network ports of the ConnectX®-5 adapter card are compliant with the IEEE 802.3 Ethernet standards listed in cards' QSFP28 connectors.
Table 6, “Features,” on page 11. Ethernet traffic is transmitted through the
Interfaces

2.2 PCI Express Interface

The ConnectX®-5 adapter card supports PCI Express Gen 3.0/4.0 (1.1 and 2.0 compatible) through an x16 edge connector. The device can be either a master initiating the PCI Express bus operations, or a slave responding to PCI bus operations.
The following lists PCIe interface features:
• PCIe Gen 4.0 and 3.0 compliant, 2.0 and 1.1 compatible
• 2.5, 5.0, or 8.0, or 16.0 GT/s link rate x16
• Auto-negotiates to x16, x8, x4, x2, or x1
• Support for MSI/MSI-X mechanisms

2.3 LED Interface

There is one bi-color I/O LED per port located on the adapter card. For LED specifications, please refer to
Section 7.8, “Adapter Card LED Operations”, on page 63.
Rev 1.0
13Mellanox Technologies

3 Hardware Installation

3.1 System Requirements

3.1.1 Hardware

Unless otherwise specified, Mellanox products are designed to work in an environmentally controlled data center with low levels of gaseous and dust (particulate) contamination.
The operation environment should meet severity level G1 as per ISA 71.04 for gaseous contamination and ISO 14644-1 class 8 for cleanliness level.
A system with a PCI Express x16 slot is required for installing the card.

3.2 Operating Systems/Distributions

Please refer to Section 1.3, “Operating Systems/Distributions”, on page 12.

3.2.1 Software Stacks

Hardware Installation
Mellanox OpenFabric software package MLNX_OFED for Linux, WinOF-2 for Windows, and VMware. See
Chapter 4, “Driver Installation”.

3.3 Safety Precautions

The adapter is being installed in a system that operates with voltages that can be lethal. Before opening the case of the system, observe the following precautions to avoid injury and prevent damage to system components.
1. Remove any metallic objects from your hands and wrists.
2. Make sure to use only insulated tools.
3. Verify that the system is powered off and is unplugged.
4. It is strongly recommended to use an ESD strap or other antistatic devices.

3.4 Pre-Installation Checklist

1. Verify that your system meets the hardware and software requirements stated above.
2. Shut down your system if active.
3. After shutting down the system, turn off power and unplug the cord. Remove the card from its package.
4. Please note that the card must be placed on an antistatic surface.Check the card for visible signs of damage. Do not attempt to install the card if damaged.
Rev 1.0
14Mellanox Technologies

3.5 Bracket Installation Instructions

The card is usually shipped with a tall bracket installed. If this form factor is suitable for your requirements, you can skip the remainder of this section and move to
tion Instructions”, on page 15. If you need to replace it with the short bracket that is included in
the shipping box, please follow the instructions in this section.
Due to risk of damaging the EMI gasket, it is not recommended to replace the bracket more than three times.
To replace the bracket you will need the following parts:
• The new brackets of the proper height
• The 2 screws saved from the removal of the bracket

3.5.1 Removing the Existing Bracket

Remove the two screws holding the bracket in place. The bracket comes loose from the card. Save the two screws.
Hardware Installation
Section 3.6, “Card Installa-
Be careful not to put stress on the LEDs on the adapter card.

3.5.2 .Installing the New Bracket

1. Place the bracket onto the card until the screw holes line up.
Do not force the bracket onto the adapter card. You may have to gently push the LEDs using a small screwdriver to align the LEDs with the holes in the bracket.
2. Screw on the bracket using the screws saved from the bracket removal procedure above.
3. Make sure that the LEDs on the adapter card are aligned onto the bracket holes.
4. Use a torque driver to apply up to 2 lbs-in torque on the screws

3.6 Card Installation Instructions

Please note that the following figures are for illustration purposes only.
1. Before installing the card, make sure that the system is off and the power cord is not con­nected to the server. Please follow proper electrical grounding procedures.
Rev 1.0
2. Open the system case.
15Mellanox Technologies
Hardware Installation
3. Place the adapter in an available PCI Express slot.
4. Applying even pressure at both corners of the card, insert the adapter card into the PCI Express slot until firmly seated.
Rev 1.0
16Mellanox Technologies
Hardware Installation
5. When the adapter is properly seated, the port connectors are aligned with the slot opening, and the adapter faceplate is visible against the system chassis.
6. Secure the adapter with the adapter clip or screw.
Do not use excessive force when seating the card, as this may damage the system or the adapter.
7. Close the system case.

3.7 Cables and Modules

To obtain the list of supported Mellanox cables for your adapter, please refer to the Cables Refer-
ence Table.

3.7.1 Cable Installation

1. All cables can be inserted or removed with the unit powered on.
2. To insert a cable, press the connector into the port receptacle until the connector is firmly seated.
a. Support the weight of the cable before connecting the cable to the adapter card. Do this by using a cable
holder or tying the cable to the rack.
b. Determine the correct orientation of the connector to the card before inserting the connector. Do not try and
insert the connector upside down. This may damage the adapter card.
c. Insert the connector into the adapter card. Be careful to insert the connector straight into the cage. Do not
apply any torque, up or down, to the connector cage in the adapter card.
d. Make sure that the connector locks in place.
Rev 1.0
When installing cables make sure that the latches engage.
17Mellanox Technologies
Hardware Installation
Always install and remove cables by pushing or pulling the cable and connector in a straight line with the card.
3. After inserting a cable into a port, the Green LED indicator will light when the physical con­nection is established (that is, when the unit is powered on and a cable is plugged into the port with the other end of the connector plugged into a functioning port). See
“Adapter Card LED Operations”, on page 63.
4. After plugging in a cable, lock the connector using the latching mechanism particular to the cable vendor. When data is being transferred the Green LED will blink. See
“Adapter Card LED Operations”, on page 63.
5. Care should be taken as not to impede the air exhaust flow through the ventilation holes. Use cable lengths which allow for routing horizontally around to the side of the chassis before bending upward or downward in the rack.
6. To remove a cable, disengage the locks and slowly pull the connector away from the port receptacle. LED indicator will turn off when the cable is unseated.
Section 7.8,
Section 7.8,

3.8 Adapter Card Un-installation Instructions

3.8.1 Safety Precautions

The adapter is installed in a system that operates with voltages that can be lethal. Before un-installing the adapter card, please observe the following precautions to avoid injury and prevent damage to system components.
1. Remove any metallic objects from your hands and wrists.
2. It is strongly recommended to use an ESD strap or other antistatic devices.
3. Turn off the system and disconnect the power cord from the server.

3.8.2 Card Un-installation

Please note that the following images are for illustration purposes only.
1. Verify that the system is powered off and unplugged.
2. Wait 30 seconds.
Rev 1.0
3. To remove the card, disengage the retention mechanisms on the bracket (clips or screws).
18Mellanox Technologies
Hardware Installation
4. Holding the adapter card from its center, gently pull the adapter card from the PCI Express slot.
5. When the port connectors reach the top of the chassis window, gently pull the adapter card in parallel to the motherboard.

3.9 Identify the Card in Your System

3.9.1 On Windows

1. Open Device Manager on the server. Click Start => Run, and then enter “devmgmt.msc”.
2. Expand System Devices and locate your Mellanox ConnectX-5 adapter card.
3. Right click the mouse on your adapter's row and select Properties to display the adapter card properties window.
Rev 1.0
19Mellanox Technologies
Hardware Installation
4. Click the Details tab and select Hardware Ids (Windows 2012/R2/2016) from the Properties pull-down menu.
Figure 1: PCI Device (Example)
Rev 1.0
5. In the Value display box, check the fields VEN and DEV (fields are separated by ‘&’). In the display example above, notice the sub-string “PCI\VEN_15B3&DEV_1003”: VEN is equal to 0x15B3 – this is the Vendor ID of Mellanox Technologies; and DEV is equal to 1018 (for ConnectX-5) or 1019 (for ConnectX-5 Ex) – this is a valid Mellanox Technologies PCI Device ID.
If the PCI device does not have a Mellanox adapter ID, return to Step 2 to check another device.
The list of Mellanox Technologies PCI Device IDs can be found in the PCI ID reposi­tory at http://pci-ids.ucw.cz/read/PC/15b3.
20Mellanox Technologies

3.9.2 On Linux

Get the device location on the PCI bus by running lspci and locating lines with the string “Mellanox Technologies”:
lspci |grep -i Mellanox
Network controller: Mellanox Technologies MT28800 Family [ConnectX-5]
Hardware Installation
Rev 1.0
21Mellanox Technologies

4 Driver Installation

4.1 Linux

For Linux, download and install the latest OpenFabrics Enterprise Distribution (OFED) software package available via the Mellanox web site at: http://www.mellanox.com => Products => Soft ware => Ethernet Drivers => Linux SW/Drivers => Download. This chapter describes how to install and test the Mellanox OFED for Linux package on a single host machine with Mellanox ConnectX-5 adapter hardware installed.

4.1.1 Hardware and Software Requirements

Table 7 - Hardware and Software Requirements
Requirements Description
Platforms • A server platform with an adapter card based on one of the following Mellanox
Technologies’ Ethernet HCA devices:
• MT4120 - ConnectX-5 (VPI, IB, EN) (firmware: fw-ConnectX5)MT4121
ConnectX®-5 Ex (VPI, IB, EN) (firmware: fw-ConnectX5)
Required Disk Space for Installation
1GB
Driver Installation
-
Device ID For the latest list of device IDs, please visit Mellanox website. Operating System Linux operating system.
For the list of supported operating system distributions and kernels, please refer to the Mellanox OFED Release Notes file.
Installer Privileges
The installation requires administrator (root) privileges on the target machine.

4.1.2 Downloading Mellanox OFED

Step 1. Verify that the system has a Mellanox network adapter (HCA/NIC) installed.
The following example shows a system with an installed Mellanox HCA:
# lspci -v | grep Mellanox 86:00.0 Network controller [0207]: Mellanox Technologies MT27620 Family Subsystem: Mellanox Technologies Device 0014 86:00.1 Network controller [0207]: Mellanox Technologies MT27620 Family Subsystem: Mellanox Technologies Device 0014
Step 2. Download the ISO image to your host.
The image’s name has the format MLNX_OFED_LINUX-<ver>-<OS label><CPU
arch>.iso
--> Ethernet Drivers --> Mellanox OFED Linux (MLNX_OFED).
Step a. Scroll down to the Download wizard, and click the Download tab. Step b. Choose your relevant package depending on your host operating system. Step c. Click the desired ISO/tgz package.
. You can download it from http://www.mellanox.com --> Products --> Software
Rev 1.0
22Mellanox Technologies
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