Overview

C H A P T E R 1

Overview

This chapter includes:

Adapter Hardware Overview

Hardware and Software Requirements

Adapter Hardware Overview

The main features of the Sun Dual Port 4x QDR IB Host Channel Adapter PCIe low-profile card are as follows:

IBTA (InfiniBand Trade Association) v1.2 compliant

Two 4x InfiniBand copper ports for connecting InfiniBand traffic (4x IB connectors)

PCIe 2.0 card

PCI Express expansion board with an x8 edge connector compatible to the PCI Express 1.0a specification

Media detect circuit, which supports external InfiniBand fiber solutions

European Union Restriction of Hazardous Substances (RoHS) compliant

4x IB port speed support: 10 Gbps, 20 Gbps, or 40 Gbps (QDR - Quad data rate)

Short mounting bracket (an alternative tall bracket is supplied along with the card)

IB-HCA Card

FIGURE 1-1 Sun Dual Port 4x QDR IB Host Channel Adapter PCIe With Short Bracket

Figure shows the PCIe card

I/O Interfaces

Each IB-HCA card includes the following interfaces:

Two 4x InfiniBand QSFP connectors

PCI Express x8 edge connector

I/O panel LEDs

InfiniBand Interface

The Sun Dual Port 4x QDR IB Host Channel Adapter PCIe is compliant with the InfiniBand Architecture Specification, Release 1.2. The device has two compliant 4x InfiniBand ports, called 1 and 2. The IB-HCA card provides access to these ports by means of two 4x InfiniBand connectors for external InfiniBand copper cables. These cables must be compliant with the InfiniBand Architecture Specification, Release 1.2. Connector 1 connects to Port 1 of the device, while connector 2 connects to Port 2.

The IB-HCA card is embedded with a media detect circuit, which supports external InfiniBand fiber solutions. These external devices are connected to the InfiniBand port connectors using active media converters, such as the Emcore QTR3400 Smart Module or the Fujitsu FPD-010R008-0E o-microGiGaCN.

PCI Express Interface

The Sun Dual Port 4x QDR IB Host Channel Adapter PCIe has eight Tx/Rx pairs of SerDes providing for a PCI Express x8 interface, version 1.0a compatible. The adapter can be either a master initiating the PCI Express bus operations or a slave responding to PCI bus operations. The PCI Express bus can connect to either a host CPU in an IB-HCA application or to an I/O device (such as Gigabit Ethernet) when used as a target channel adapter (TCA).

LED Assignment

The board has four LEDs located on the I/O panel. Two LEDs are assigned to each 4X port. See FIGURE 1-2 .

FIGURE 1-2 I/O Panel With Dual Ports and LEDs (Tall Bracket)

Figure shows data ports and LEDs of the IB-HCA ca rd.

Figure Legend
1	InfiniBand Port 1
2	Green LED for Port 1 (Physical Link)
3	Amber LED for Port 1 (Data Activity Link)
4	InfiniBand Port 2
5	Amber LED for Port 2 (Data Activity Link)
6	Green LED for Port 2 (Physical Link)

The same port names and LED footprints apply when a tall bracket is installed on the card. To install the supplied tall bracket, see Appendix B.

The pair of LEDs for each port have the meanings described in TABLE 1-1.

TABLE 1-1 LED Meanings
LED Color	LED Name	LED State	Meaning
Green	Physical Link	Lit	The link bringup process has successfully completed and the link width, link speed, link polarity, and link reversal have been negotiated with the neighbor port on the other end of the cable.
		Unlit	A physical connection has not been established.
Amber	Data Activity	Steady light	Infiniband is discovered over the physical link, but no data is being passed.
		Blinking light	Data is being passed.
		Unlit	A physical or logical connection (or both) has not been established.

I²C Compatible Interface

A three-pin header, designated with reference name J5 on the IB-HCA card, is provided as the I²C compatible interface.

Power

The adapter card receives power from the PCI Express edge connector. All other required power voltages are generated by on-board switch mode regulators. For details on power consumption, see Appendix A.

Node GUID

A label on the back of the Sun Dual Port 4x QDR IB Host Channel Adapter PCIe card displays the 64-bit GUID. This GUID uniquely identifies this device in the server and on the IB fabric.

Hardware and Software Requirements

For the latest list of supported platforms and operating systems, refer to the Sun Dual Port 4x QDR IB Host Channel Adapter PCIe Product Notes, part number 820-6537. This document is available at http://docs.sun.com.