Q-Logic IB0056101-00 G manual InfiniPath and OpenFabrics Driver Overview

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5 – Software Installation InfiniPath and OpenFabrics Driver Overview

InfiniPath and OpenFabrics Driver Overview

The InfiniPath ib_ipath module provides low level QLogic hardware support, and is the base driver for both the InfiniPath and OpenFabrics software components. The ib_ipath module does hardware initialization, handles InfiniPath-specific memory management, and provides services to other InfiniPath and OpenFabrics modules.

It provides the hardware and hardware management functions for MPI/PSM programs, the ipath_ether Ethernet emulation, and general OpenFabrics protocols such as IPoIB and SDP. The module also contains a subnet management agent.

Figure 5-1shows the relationship between the InfiniPath and OpenFabrics software. Not all components are shown.

InfiniPath components

			OpenFabrics
			components
TCP/IP		IPoIB		OpenS
ipath_ether
	ib_ipath

Figure 5-1. Relationship Between InfiniPath and OpenFabrics Software

If you want to enable Transmission Control Protocol-Internet Protocol (TCP/IP) networking for running Ethernet traffic over the InfiniPath link, you can configure the optional ipath_ether network interface files.

NOTE:

It is not necessary to configure the ipath_ether driver to run MPI jobs.

Optional configurable OpenFabrics components are:

„IPoIB network interface

„VNIC

„OpenSM

„SRP (OFED and QLogic modules)

„MPI over uDAPL (can be used by Intel MPI or HP-MPI)

Configuring the InfiniPath Drivers

This section provides information on InfiniPath driver configuration.

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