Q-Logic Computer Drive IB0056101-00 G Benutzerhandbuch

5 – Software Installation
OpenFabrics Drivers and Services Configuration and Startup

5-18

IB0056101-00 G

Configuring and Administering the VNIC Interface

The VirtualNIC (VNIC) Upper Layer Protocol (ULP) works in conjunction with
firmware running on Virtual Input/Output (VIO) hardware such as the SilverStorm
Ethernet Virtual I/O Controller (EVIC™) or the InfiniBand/Ethernet Bridge Module
for IBM

BladeCenter

, providing virtual Ethernet connectivity.

The VNIC interface must be configured before it can be used. To do so, perform
the following steps:

Discover EVIC/VEx Input/Output Controllers (IOCs) present on the fabric
using

ib_qlgc_vnic_query

. For writing the configuration file, you need

information about the EVIC/VEx IOCs present on the fabric, for example,
their IOCGUID, IOCSTRING, etc. Use the

ib_qlgc_vnic_query

tool to get

this information.

When

ib_qlgc_vnic_query

is executed without any options, it displays

detailed information about all the EVIC/VEx IOCs present on the fabric. For
example:

# ib_qlgc_vnic_query
IO Unit Info:

port LID: 0003
port GID: fe8000000000000000066a0258000001
change ID: 0009
max controllers: 0x03

controller[ 1]

GUID: 00066a0130000001
vendor ID: 00066a
device ID: 000030
IO class : 2000
ID: Chassis 0x00066A00010003F2, Slot 1, IOC 1
service entries: 2

service[ 0]: 1000066a00000001
InfiniNIC.InfiniConSys.Control:01

NOTE:

The configuration must be repeated each time the system is rebooted.

IPoIB-CM (Connected Mode) is enabled by default. If you want to
change this to datagram mode, edit the file

/etc/sysconfig/infinipath

. Change this line to:

IPOIB_MODE="datagram"

Restart

infinipath

(as root) by typing:

# /etc/init.d/infinipath restart

The default IPOIB_MODE setting is "

" for Connected Mode.