Q-Logic Computer Drive IB0056101-00 G Benutzerhandbuch

5 – Software Installation
Configuring the InfiniPath Drivers

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The ib_ipath module provides both low-level InfiniPath support and 

management functions for OpenFabrics protocols. The ib_ipath driver has 

several configuration variables that set reserved buffers for the software, define 
events to create trace records, and set the debug level.The startup script for 
ib_ipath is installed automatically as part of the software installation, and 

normally does not need to be changed. 

The primary configuration file for the InfiniPath drivers ib_ipath and 
ipath_ether, and other modules and associated daemons, is:

/etc/sysconfig/infinipath

Normally, this configuration file is set up correctly at installation and the drivers are 
loaded automatically during system boot once the RPMs have been installed. If 
you are upgrading, your existing configuration files will not be overwritten.

The device files are:

/dev/ipath 
/dev/ipath0, /dev/ipath1, ... 

The numbered device files allow access to a specific InfiniPath unit.

See the 

ib_ipath

 man page for more details.

These instructions are for enabling TCP/IP networking over the InfiniPath link. To 
enable IPoIB networking, see 

.

You must create a network device configuration file for the layered Ethernet 
device on the QLogic adapter. This configuration file will resemble the 
configuration files for the other Ethernet devices on the nodes. 

Two slightly different procedures are given in the following sections for the ipath 
configuration; one for Fedora/RHEL (see 

) and one for SLES 10 (see 

).

Many of the entries that are used in the configuration directions are explained in 
the file 

sysconfig.txt

, located in the following directory:

/usr/share/doc/initscripts-*/sysconfig.txt

The following procedure will cause the ipath_ether network interfaces to be 

automatically configured the next time you reboot the system. These instructions 
are for the Fedora 6, Red Hat Enterprise Linux 4 (RHEL4), and RHEL5 
distributions.