Mellanox Technologies ConnectX-3 Pro User manual

www.mellanox.com
ConnectX®-3 Ethernet Single and Dual SFP+
Port Mezzanine Card User Manual for Open
Compute Project
P/N:
MCX341A-XCCN, MCX342A-XCCN, MCX341A-XCDN, MCX342A-XCDN, MCX341A-XCEN,
MCX342A-XCEN, MCX341A-XCFN, MCX342A-XCFN, MCX341A-XCGN, MCX342A-XCGN
Rev 1.8

Mellanox Technologies
350 Oakmead Parkway Suite 100
Sunnyvale, CA 94085
U.S.A.
www.mellanox.com
Tel: [phone]
Fax: [phone]
Mellanox Technologies, Ltd.
Beit Mellanox
PO Box 586 Yokneam 20692
Israel
www.mellanox.com
Tel: [phone]
Fax: [phone]
© Copyright 2014. Mellanox Technologies. All Rights Reserved.
Mellanox®, Mellanox logo, BridgeX®, ConnectX®, Connect-IB®, CORE-Direct®, InfiniBridge®, InfiniHost®,
InfiniScale®, MetroX®, MLNX-OS®, PhyX®, ScalableHPC®, SwitchX®, UFM®, Virtual Protocol Interconnect® and
Voltaire® are registered trademarks of Mellanox Technologies, Ltd.
ExtendX™, FabricIT™, Mellanox Open Ethernet™, Mellanox Virtual Modular Switch™, MetroDX™, TestX™,
Unbreakable-Link™ are trademarks of Mellanox Technologies, Ltd.
All other trademarks are property of their respective owners.
NOTE:
THIS HARDWARE, SOFTWARE OR TEST SUITE PRODUCT (“PRODUCT(S)”) AND ITS RELATED
DOCUMENTATION ARE PROVIDED BY MELLANOX TECHNOLOGIES “AS-IS” WITH ALL FAULTS OF ANY
KIND AND SOLELY FOR THE PURPOSE OF AIDING THE CUSTOMER IN TESTING APPLICATIONS THAT USE
THE PRODUCTS IN DESIGNATED SOLUTIONS. THE CUSTOMER'S MANUFACTURING TEST ENVIRONMENT
HAS NOT MET THE STANDARDS SET BY MELLANOX TECHNOLOGIES TO FULLY QUALIFY THE
PRODUCTO(S) AND/OR THE SYSTEM USING IT. THEREFORE, MELLANOX TECHNOLOGIES CANNOT AND
DOES NOT GUARANTEE OR WARRANT THAT THE PRODUCTS WILL OPERATE WITH THE HIGHEST
QUALITY. ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
ARE DISCLAIMED. IN NO EVENT SHALL MELLANOX BE LIABLE TO CUSTOMER OR ANY THIRD PARTIES
FOR ANY DIRECT, INDIRECT, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES OF ANY KIND
(INCLUDING, BUT NOT LIMITED TO, PAYMENT FOR PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
OR OTHERWISE) ARISING IN ANY WAY FROM THE USE OF THE PRODUCT(S) AND RELATED
DOCUMENTATION EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Document Number: 4026
Rev 1.8
Mellanox Technologies
2

ConnectX®-3 Ethernet Single and Dual SFP+ Port Adapter Card User Manual for OCP Rev 1.8
Mellanox Technologies 3
Table of Contents
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
List of Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
List of Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
About this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Chapter 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.1 ProductOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.2 FeaturesandBenefits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.3 OperatingSystems/Distributions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.4 Connectivity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Chapter 2 Interfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.1 EthernetSFP+Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.2 PCIExpressInterface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.3 I2C-compatibleInterface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.4 LEDInterface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.5 Unified Extensible Firmware Interface (UEFI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.6 Intelligent Platform Management Interface (IPMI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Chapter 3 Hardware Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.1 SystemRequirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.1.1 Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.1.2 Operating Systems/Distributions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.1.3 Software Stacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.2 SafetyPrecautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.3 Pre-installationChecklist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.4 CardInstallationInstructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.5 Cablesand Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.6 Identify the Card in Your System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.6.1 On Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.6.2 On Linux . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Chapter 4 Driver Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.1 LinuxDriver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.1.1 Hardware and Software Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.1.2 Installing the Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.1.3 Loading the Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.1.4 Unloading the Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.1.5 Uninstalling the Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.2 WindowsDriver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.2.1 Hardware and Software Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.2.2 Downloading MLNX_WinOF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.2.3 Extracting Files Without Running Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.2.4 Installing MLNX_WinOF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.2.4.1 Attended Installation 24
4.2.4.2 Unattended Installation 29
4.2.5 Upgrading MLNX_WinOF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.2.6 Installation Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . 30
4.2.7 OpenSM Activation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.2.8 Uninstalling MLNX_WinOF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.2.8.1 Attended Uninstall 32

Rev 1.8
Mellanox Technologies
4
4.2.8.2 Unattended Uninstall 32
4.2.9 Assigning Port IP After Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.3 VMwareDriver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.3.1 Installing and Running the VBI Driver on ESXi-5.x . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
4.3.2 Installing and Running the offline_bundle Driver on ESXi-5.x . . . . . . . . . . . . . . . . . . . . . . . . 34
4.3.3 Removing the VIB/offline_bundle Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.4 FlexBoot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Chapter 5 Updating Adapter Card Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Chapter 6 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6.1 General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6.2 Linux . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
6.3 Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Chapter 7 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
7.1 MCX341ASpecifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
7.2 MCX342ASpecifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
7.3 Board Mechanical Drawing and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
7.3.1 Mylar Mechanical Drawing and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
7.4 AdapterLEDOperation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
7.5 RegulatoryStatements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Appendix A Card Change History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
A.1 Changes in Rev A2 from Rev A1 (MCX341A-XCCN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
A.2 Changes in Rev A3 from Rev A2 (MCX341A-XCCN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
A.3 Changes in MCX341A-XCDN from MCX341A-XCCN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
A.4 Changes in MCX341A-XCEN from MCX341A-XCDN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
A.5 Changes in MCX341A-XCFN from MCX341A-XCEN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
A.6 Changes in MCX341A-XCGN from MCX341A-XCFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Appendix B Finding the MAC/GUID and Serial Number on the Mezzanine Card . . . . . . . . . 48
B.1 Retrieving Adapter Card GUID. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Appendix C Interface Connectors Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
C.1 SFP+ Pinout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
C.2 PCI Express x8 Connector Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
C.3 I2C-compatible Connector Pinout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Appendix D Safety Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Appendix E Avertissements de sécurité d’installation (Warnings in French) . . . . . . . . . . . . . . 60
Appendix F Sicherheitshinweise (Warnings in German). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Appendix G Advertencias de seguridad para la instalación (Warnings in Spanish). . . . . . . . . 64

ConnectX®-3 Ethernet Single and Dual SFP+ Port Adapter Card User Manual for OCP Rev 1.8
Mellanox Technologies 5
List of Figures
Figure 1: PCI Device. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 2: Support Download Assistant. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Figure 3: Mechanical Drawing of the Single-port MCX341A Mezzanine Card . . . . . . . . . . . . . . 43
Figure 4: Mechanical Drawing of the Dual-port MCX342A Mezzanine Card . . . . . . . . . . . . . . . 44
Figure 5: Mechanical Drawing of Mylar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Figure 6: Mylar on Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Figure 7: MCX341A-XCCN Board Label (Example only - see Note) . . . . . . . . . . . . . . . . . . . . . 48
Figure 8: MCX341A-XCDN Board Label (Example only - see Note) . . . . . . . . . . . . . . . . . . . . . 49
Figure 9: MCX342A-XCCN Board Label (Example only - see Note) . . . . . . . . . . . . . . . . . . . . . 49
Figure 10: MCX342A-XCDN Board Label (Example only - see Note) . . . . . . . . . . . . . . . . . . . . . 50
Figure 11: MCX341A-XCEN Board Label (Example only - see Note). . . . . . . . . . . . . . . . . . . . . . 50
Figure 12: MCX342A-XCEN Board Label (Example only - see Note). . . . . . . . . . . . . . . . . . . . . . 51
Figure 13: MCX341A-XCFN Board Label (Example only - see Note). . . . . . . . . . . . . . . . . . . . . . 51
Figure 14: MCX342A-XCFN Board Label (Example only - see Note). . . . . . . . . . . . . . . . . . . . . . 52
Figure 15: MCX341A-XCGN Board Label (Example only - see Note) . . . . . . . . . . . . . . . . . . . . . 52
Figure 16: MCX342A-XCGN Board Label (Example only - see Note) . . . . . . . . . . . . . . . . . . . . . 53
Figure 17: SFP+ Cage Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Figure 18: PCIe Connector Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Figure 19: Compatible Connector Plug and Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Rev 1.8
Mellanox Technologies
6
List of Tables
Table 1: Revision History Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 2: Documents List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 3: Single-port 10 Gigabit Ethernet Adapter Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 4: Dual-port 10 Gigabit Ethernet Adapter Cards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 5: Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 6: Software and Hardware Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Table 7: Software and Hardware Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Table 8: MCX341A Specifications Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Table 9: MCX342A Specifications Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Table 10: Physical and Logical Link Indication . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Table 11: I2C-compatible Connector Pinout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

ConnectX®-3 Ethernet Single and Dual SFP+ Port Adapter Card User Manual for OCP Rev 1.8
Mellanox Technologies 7
Revision History
This document was printed on April 9, 2014.
Table 1 - Revision History Table
Date Rev Comments/Changes
April 10, 2014 1.8 • Added Note on board labels
• Updated XCGN board labels in Figure 15 and Figure 16 to show
Rev A5
January 27, 2013 1.7 • Added Section 7.3.1, “Mylar Mechanical Drawing and Dimen-
sions,” on page 45
• Added Figure 15, “MCX341A-XCGN Board Label (Example
only - see Note),” on page 52 and Figure 16, “MCX342A-XCGN
Board Label (Example only - see Note),” on page 53
December 19, 2013 1.6 • Added MCX341A-XCFN, MCX342A-XCFN,MCX341A-
XCGN and MCX342A-XCGN to the User Manual. See
Section 1.1, “Product Overview,” on page 10.
November 05, 2013 1.5 • Updated structure of the User Manual
• Added Section 7.2, “MCX342A Specifications,” on page 42
• Added Figure 4, “Mechanical Drawing of the Dual-port
MCX342A Mezzanine Card,” on page 44
• Added Appendix A.4, “Changes in MCX341A-XCEN from
MCX341A-XCDN,” on page 47
• Added the following note to Chapter 5,“Updating Adapter Card
Firmware” on page 36: Note: The shown versions and/or param-
eter values in the example below may not reflect the latest or
actual values for this product, and are included here for illustra-
tion purposes only.
• Added Chapter 6,“Troubleshooting” on page 38
• Added Appendix B.1, “Retrieving Adapter Card GUID,” on
page 53
October 16, 2013 1.4 • Added MCX342A-XCCN, MCX342A-XCDN, MCX341A-
XCEN and MCX342A-XCEN
April 17, 2013 1.3 Added MCX341A-XCDN to the document
Added Appendix A.3, “Changes in MCX341A-XCDN from
MCX341A-XCCN,” on page 47
December 11, 2012 1.2 Updated Figure 3, “Mechanical Drawing of the Single-port
MCX341A Mezzanine Card,” on page 43
December 6, 2012 1.1 Updated label in Figure 7, “MCX341A-XCCN Board Label
(Example only - see Note),” on page 48
Added note to Section 3.4, “Card Installation Instructions,” on
page 16
Added Appendix A, “Card Change History,” on page 47
Added “Cable Support” to Table 8, “MCX341A Specifications
Table,” on page 41
September 2012 1.0 First Release

Rev 1.8
Mellanox Technologies
8
About this Manual
This User Manual describes Mellanox Technologies ConnectX®-3 10 Gigabit Ethernet Single and
Dual SFP+ Port PCI Express x8 Mezzanine cards. It provides details as to the interfaces of the
board, specifications, required software and firmware for operating the board, and relevant docu-
mentation.
Intended Audience
This manual is intended for the installer and user of these cards.
The manual assumes basic familiarity with Ethernet networks and architecture specifications.
Related Documentation
Table 2 - Documents List
Mellanox Firmware Tools (MFT) User Manual
Document no. 2204UG User Manual describing the set of MFT firmware management
tools for a single node.
See http://www.mellanox.com => Products => Software => Firm-
ware Tools
MLNX_EN for Linux README Driver Kit
for Mellanox Adapter Cards with 10GigE
Support
Document no. 2950
This document provides information on the MLNX_EN Linux
driver and instructions for installing the driver on Mellanox Con-
nectX adapter cards supporting 10Gb/s Ethernet.
Mellanox OFED for Linux
User Manual
Document no. 2877
User Manual describing OFED features, performance, InfiniBand
diagnostic, tools content and configuration.See http://www.mella-
nox.com => Products => Software => Linux SW/Drivers => Mel-
lanox OpenFabrics Enterprise Distribution for Linux
(MLNX_OFED)
WinOF VPI for Windows
User Manual
Document no. 3280
User Manual describing WinOF features, performance, InfiniBand
diagnostic, tools content and configuration. See http://www.mella-
nox.com => Products => Software => Windows SW/Drivers =>
Mellanox OFED for Windows (WinOF)
Mellanox MLX4_EN Driver for VMware
README
Document no. 3527
User Manual describing MLX4_EN driver for VMware features,
performance, diagnostic, tools content and configuration. See
http://www.mellanox.com => Products => Software => Ethernet
Drivers => VMware Drivers
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 Electromechanical
Specifications

ConnectX®-3 Ethernet Single and Dual SFP+ Port Adapter Card User Manual for OCP Rev 1.8
Mellanox Technologies 9
Online Resources
• Mellanox Technologies web pages: http://www.mellanox.com
• Mellanox Technologies Firmware download web page:
http://www.mellanox.com => Support => Download Center
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.
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: [e-mail]
• Tel: [phone]
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 and Software Updates
The Mellanox support downloader contains software, firmware and knowledge database informa-
tion for Mellanox products. Access the data base 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/.

IntroductionRev 1.8
Mellanox Technologies
10
1 Introduction
This is the User Guide for Mellanox Technologies Ethernet adapter cards based on the Con-
nectX®-3 EN integrated circuit device. These adapters connectivity provide the highest perform-
ing and most flexible interconnect solution for PCI Express Gen3 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 10
•Section 1.2, “Features and Benefits,” on page 12
•Section 1.3, “Operating Systems/Distributions,” on page 13
•Section 1.4, “Connectivity,” on page 13
1.1 Product Overview
The following tables provide the ordering part number, port speed, number of ports, and PCI
Express speed.
Table 3 - Single-port 10 Gigabit Ethernet Adapter Cards
Ordering Part Number (OPN) MCX341A-XC[C/D/E/F/G]N
Data Transmission Rate 10GigE
Number of ports
MCX341A-XCCN: single-port SFP+ IPMI disabled
MCX341A-XCDN: single-port SFP+ IPMI enabled
MCX341A-XCEN: single-port SFP+ with IPMI and UEFI
IPv6 support
MCX341A-XCFN: single-port SFP+ with IPMI and LACP
MCX341A-XCGN: single-port SFP+ with IPMI and NC-SI
support
PCI Express SERDES Speed PCIe 3.0 x8 8GT/s
RoHS R6
Adapter IC Part Number MT27518A1-FCCR-XE
Device ID (decimal) 4099 for Physical Function
4100 for Virtual Function

ConnectX®-3 Ethernet Single and Dual SFP+ Port Adapter Card User Manual for OCP Rev 1.8
Mellanox Technologies 11
Table 4 - Dual-port 10 Gigabit Ethernet Adapter Cards
Ordering Part Number (OPN) MCX342A-XC[C/D/E/F/G]N
Data Transmission Rate 10GigE
Number of ports
MCX342A-XCCN: dual-port SFP+ IPMI disabled
MCX342A-XCDN: dual-port SFP+ IPMI enabled
MCX342A-XCEN: dual-port SFP+ with IPMI and UEFI
IPv6 support
MCX342A-XCFN: dual-port SFP+ with IPMI and LACP
MCX342A-XCGN: dual-port SFP+ with IPMI and NC-SI
support
PCI Express SERDES Speed PCIe 3.0 x8 8GT/s
RoHS R6
Adapter IC Part Number MT27518A1-FCCR-XE
Device ID (decimal) 4099 for Physical Function
4100 for Virtual Function

IntroductionRev 1.8
Mellanox Technologies
12
1.2 Features and Benefits
Table 5 - Features
PCI Express (PCIe) Uses PCIe Gen 3.0 (1.1 and 2.0 compatible) through an x8 edge connector up to
8GT/s
10 Gigabit Ethernet Mellanox adapters comply with the following IEEE 802.3* standards:
IEEE Std 802.3-2008 Ethernet
IEEE Std 802.3ae 10 Gigabit Ethernet
IEEE Std 802.3ad Link Aggregation and Failover
Memory PCI Express - stores and accesses InfiniBand and/or Ethernet fabric connection
information and packet data
SPI - includes one 16Mb SPI Flash device (M25PX16-VMN6P device by ST
Microelectronics)
EEPROM - accessible through the I2C-compatible interface. The EEPROM
capacity is 4Kb.
RDMA over Ethernet
(RoE) Leveraging Data Center Bridging capabilities, RoE provides efficient low
latency RDMA services over Layer 2 Ethernet.
CPU offload Adapter functionality enabling reduced CPU overhead allowing more available
CPU
Sockets Acceleration Applications utilizing TCP/UDP/IP transport can achieve industry leading
throughput over InfiniBand or 10GbE. The hardware-based stateless offload
engines in ConnectX-3 reduce the CPU overhead of IP packet transport. Sockets
acceleration software further increases performance for latency sensitive applica-
tions.
Quality of Service (QoS) Support for port-based Quality of Service enabling various application require-
ments for latency and SLA
Hardware-based I/O
virtualization ConnectX-3 provides dedicated adapter resources and guaranteed isolation and
protection for virtual machines within the server.
SR-IOV
ConnectX-3 SR-IOV technology provides dedicated adapter resources and guar-
anteed isolation and protection for virtual machines (VM) within the server. I/O
virtualization with ConnectX-3 gives data center managers better server utiliza-
tion while reducing cost, power, and cable complexity.
IPMI support
Enabled for the following:
MCX341A-XCDN, MCX342A-XCDN
MCX341A-XCEN, MCX342A-XCEN
MCX341A-XCFN, MCX342A-XCFN
MCX341A-XCGN, MCX342A-XCGN
LACP Enabled for MCX341A-XCFN and MCX342A-XCFN
Wake-on-LAN (WoL) To be updated in future release.
Reset-on-LAN (RoL) To be updated in future release.

ConnectX®-3 Ethernet Single and Dual SFP+ Port Adapter Card User Manual for OCP Rev 1.8
Mellanox Technologies 13
1.3 Operating Systems/Distributions
• Novell SLES, Red Hat Enterprise Linux (RHEL), Fedora, CentOS and other Linux dis-
tributions.
• Microsoft Windows Server 2008/CCS 2003, HPC Server 2008
• OpenFabrics Enterprise Distribution (OFED)
• OpenFabrics Windows Distribution (WinOF)
• VMware ESX Server 3.5, vSphere 4.0/4.1
1.4 Connectivity
• Interoperable with 10GigE switches
• SFP+ connectors
• Passive copper cable and Optical Modules support
• Powered connectors for optical and active cable support
NC-SI The adapter supports a slave Network Controller Sideband Interface (NC-SI) that
can be connected to a BMC. Enabled for MCX341A-XCGN and MCX342A-
XCGN.
Unified Extensible
Firmware Interface
(UEFI)
See Section 2.5, “Unified Extensible Firmware Interface (UEFI),” on
page 14.
Table 5 - Features

InterfacesRev 1.8
Mellanox Technologies
14
2 Interfaces
Each adapter card includes the following interfaces:
•“Ethernet SFP+ Interface”
•“PCI Express Interface”
•“I2C-compatible Interface”
•“LED Interface”
•“Unified Extensible Firmware Interface (UEFI)”
•“Intelligent Platform Management Interface (IPMI)”
2.1 Ethernet SFP+ Interface
The network ports of the ConnectX®-3 adapter cards are compliant with the IEEE 802.3 Ether-
net standards listed in Table 5, “Features,” on page 12. The SFP+ port has one Tx/Rx pair of
SerDes. Ethernet traffic is transmitted through the cards' SFP+ connectors.
2.2 PCI Express Interface
The ConnectX®-3 adapter cards support PCI Express 3.0 (1.1 and 2.0 compatible) through an x8
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 the PCIe interface features:
• PCIe Base 3.0 compliant, 1.1 and 2.0 compatible
• 2.5, 5.0, or 8.0GT/s link rate x8
• Auto-negotiates to x8, x4, x2, or x1
• Support for MSI/MSI-X mechanisms
2.3 I2C-compatible Interface
A three-pin header on the adapter cards is provided as the I2C-compatible interface. See Figure 3,
“Mechanical Drawing of the Single-port MCX341A Mezzanine Card,” on page 43 for the loca-
tion on the board.
2.4 LED Interface
There are two I/O LEDs per port. For LED specifications please refer to Section 7.4, “Adapter
LED Operation,” on page 46.
2.5 Unified Extensible Firmware Interface (UEFI)
The UEFI driver is located on the device option ROM and can be used for network boot (for
example remote OS installation).

ConnectX®-3 Ethernet Single and Dual SFP+ Port Adapter Card User Manual for OCP Rev 1.8
Mellanox Technologies 15
2.6 Intelligent Platform Management Interface (IPMI)
To be updated in future release.

Hardware InstallationRev 1.8
Mellanox Technologies
16
3 Hardware Installation
3.1 System Requirements
3.1.1 Hardware
This card requires a PCI Express connector as specified in the Open Compute Project Intel Moth-
erboard spec v2.0.
3.1.2 Operating Systems/Distributions
Please refer to Section 1.3, “Operating Systems/Distributions,” on page 13.
3.1.3 Software Stacks
Mellanox OpenFabric software package - MLNX_EN for Linux, WinOF for Windows and ESX
5.1 for VMware. See Chapter 4, “Driver Installation”.
3.2 Safety Precautions
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.
3.3 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.
4. Remove the card from its package. Please note that the card must be placed on an antistatic
surface.
5. Check the card for visible signs of damage. Do not attempt to install the card if damaged.
3.4 Card Installation Instructions
To be updated in future release.
3.5 Cables and Modules
The SFP+ port can connect to the Ethernet through both direct attach cables and stand alone
transceivers with optical cables. SFP+ transceiver modules are available for both SR and LR pro-
tocols.
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.

ConnectX®-3 Ethernet Single and Dual SFP+ Port Adapter Card User Manual for OCP Rev 1.8
Mellanox Technologies 17
Note: In order to support SFP+ transceiver modules, the host must supply 3.3Vaux = 3.3V -3% /
+5%, or use 3.3V -7% tolerant modules.
To obtain the list of supported cables for your adapter, please refer to “Mellanox Products
Approved Cable Lists” at:
www.mellanox.com/related-docs/user_manuals/Mellanox_approved_cables.pdf.
3.6 Identify the Card in Your System
3.6.1 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-3 adapter card.
3. Right click the mouse on your adapter's row and select properties to display the adapter card
properties window.
4. Click the Details tab and select Device Instance Id (Windows 2003)
5. Hardware Ids (Windows 2008/R2) from the Properties pull-down menu.
Figure 1: PCI Device
6. 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 1003 – 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.

Hardware InstallationRev 1.8
Mellanox Technologies
18
3.6.2 On Linux
Get the device location on the PCI bus by running lspci and locating lines with the string “Mella-
nox Technologies”:
The list of Mellanox Technologies PCI Device IDs can be found in the PCI ID reposi-
tory at http://pci-ids.ucw.cz/read/PC/15b3.
> lspci |grep -i Mellanox
27:00.0 Network controller: Mellanox Technologies MT27500 Family [ConnectX-3]

ConnectX®-3 Ethernet Single and Dual SFP+ Port Adapter Card User Manual for OCP Rev 1.8
Mellanox Technologies 19
4 Driver Installation
4.1 Linux Driver
For Linux, download and install the latest MLNX_EN driver software package available via the
Mellanox web site at: http://www.mellanox.com => Products => Software => Ethernet Drivers
=> ConnectX®-3 EN 10GigE Linux Driver => Download. Follow the installation instructions
included in the download package (also available from the download page).
4.1.1 Hardware and Software Requirements
4.1.2 Installing the Driver
Step 1. Download Driver Package
Please download the current driver package from http://www.mellanox.com => Products =>
Software => Ethernet Driver => Linux Driver => Download.
Step 2. Install Driver
Run the following commands to install the driver:
The package consists of several source RPMs. The install script rebuilds the source RPMs and
then installs the created binary RPMs. The created kernel module binaries are placed under /lib/
Table 6 - Software and Hardware Requirements
Requirements Description
Platforms CPU architectures:
• x86_64
• x86
• power-pc
Device ID For the latest list of device IDs, please visit http://pci-ids.ucw.cz/read/PC/
15b3.
Operating System Linux Operating Systems:
• RedHat EL5.8
• RedHat EL5.9
• RedHat EL6.2
• RedHat EL6.3
• OEL6.2 + 2.6.32-279.19.1
• OEL6.3 + 2.6.32-279.19.1
• SLES11 SP1
• SLES11 SP2
Software Dependencies To install the driver software, kernel sources must be installed on the
machine. MLNX_EN driver cannot coexist with OFED software on the same
machine. Hence when installing MLNX_EN all OFED packages should be
removed (done by the mlnx_en install script)
#> tar xzvf mlnx_en-1.5.10.tgz file
#> cd mlnx_en-1.5.10
#> ./install.sh

Driver InstallationRev 1.8
Mellanox Technologies
20
modules/<kernel-ver>/updates/kernel/drivers/net/mlx4. mlnx_en installer supports 2 modes of
installation.The install scripts selects the mode of driver installation depending of the running
OS/kernel version.
1. Kernel Module Packaging (KMP) mode, where the source rpm is rebuilt for each installed
flavor of the kernel. This mode is used for RedHat and SUSE distributions.
2. Non KMP installation mode, where the sources are rebuilt with the running kernel. This mode
is used for vanilla kernels.
Note: If the Vanilla kernel is installed as rpm, please use the "--disable-kmp" flag when installing
the driver.
The kernel module sources are placed under /usr/src/mellanox-mlnx-en-1.5.10/.Run the follow-
ing commands to recompile the driver:
The uninstall and performance tuning scripts are installed.
Note: If the driver was installed without kmp support, the sources would be located under /usr/
srs/mlnx_en-1.5.10/
4.1.3 Loading the Driver
Step 1. Make sure no previous driver version is currently loaded
Run:
Step 2. Load the new driver version
Run:
The result is a new net-device appearing in 'ifconfig -a' output.
4.1.4 Unloading the Driver
To unload the Ethernet driver run:
4.1.5 Uninstalling the Driver
To uninstall the mlnx_en driver run:
4.2 Windows Driver
For Windows, download and install the latest Mellanox WinOF VPI for Windows software pack-
age available via the Mellanox web site at: http://www.mellanox.com=> Products => Software
#> cd /usr/src/mellanox-mlnx-en-1.5.10/
#> scripts/mlnx_en_patch.sh
#> make
#> make install
#> modprobe -r mlx4_en
#> modprobe mlx4_en
#> modprobe mlx4_en
#> /sbin/mlnx_en_uninstall.sh