Draft
IB0056101-00 G.02 Preliminary 6-1
6Configuring Drivers and
Services
This section provides instructions for configuring and using the drivers and
services available with QLogic OFED 1.4.
InfiniPath and OpenFabrics Driver Overview
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. 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. It is disabled on startup. You can either 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 needs to be
configured before MPI over uDAPL can be set up.
Other optional drivers can now be configured and enabled, as described in
“OpenFabrics Drivers and Services Configuration and Startup” on page6-1.
Complete information about starting, stopping, and restarting the InfiniPath
services are in “Managing the InfiniPath Driver” on page 6-15.
OpenFabrics Drivers and Services Configuration
and Startup
IPoIB, VNIC, OpenSM, SRP, and MPI over uDAPL configuration and startup is
explained in more detail in the following sections.