QLogic 7104-3M-CABLE User Manual

IB0056101-00  H

6-1

This section provides instructions for configuring and using the drivers and 
services available with QLogic OFED 1.4.

The InfiniPath ib_ipath module provides low-level QLogic hardware support, 
and is the base driver for both MPI/PSM programs and general OpenFabrics 
protocols such as IPoIB and SDP. The driver also supplies the Subnet 
Management Agent (SMA) component.

Optional configurable OpenFabrics components and their default settings at 
startup are:

„

IPoIB network interface. This component is required for TCP/IP networking 
for running Ethernet traffic over the InfiniPath link. It is not running until it is 
configured.

„

VNIC. It is not running until it is configured.

„

OpenSM. This component is disabled at startup. You can install it on only 
one node, or disable it on all nodes except where it will be used as an SM.

„

SRP (OFED and QLogic modules). SRP is not running until the module is 
loaded and the SRP devices on the fabric have been discovered. 

„

MPI over uDAPL (can be used by Intel MPI or HP

®

-MPI). IPoIB must be 

configured before MPI over uDAPL can be set up.

Other optional drivers can now be configured and enabled, as described in 

.

Complete information about starting, stopping, and restarting the InfiniPath 
services is in 

.

IPoIB, VNIC, OpenSM, SRP, and MPI over uDAPL configuration and startup is 
explained in detail in the following sections.