Q-Logic Computer Drive IB0056101-00 G Benutzerhandbuch

5 – Software Installation

InfiniPath and OpenFabrics Driver Overview

IB0056101-00  G

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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.

 shows the relationship between the InfiniPath and OpenFabrics 

software. Not all components are shown.

 

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. 

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)

This section provides information on InfiniPath driver configuration. 

It is not necessary to configure the 

ipath_ether

 driver to run MPI jobs.

       InfiniPath

components

 TCP/IP

ipath_ether

OpenS

 IPoIB

OpenFabrics 

components

ib_ipath