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5 – Software Installation
OpenFabrics Drivers and Services Configuration and Startup
5-18 IB0056101-00 G
S
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:
1. 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 "
CM" for Connected Mode.