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5 – Software Installation
Adapter Settings
5-30 IB0056101-00 G
S
Adapter Settings
The following adapter settings can be adjusted for better performance.
Use taskset to tune CPU affinity on Opteron systems with the
QLE7240, QLE7280, and QLE7140. Latency will be slightly lower for the
Opteron socket that is closest to the PCI Express bridge. On some chipsets,
bandwidth may be higher on this socket. See the QLogic HCA and InfiniPath
Software User Guide for more information on using taskset. Also see the
taskset(1) man page.
Use an IB MTU of 4096 bytes instead of 2048 bytes, if available, with
the QLE7240, QLE7280, and QLE7140. 4K MTU is enabled in the
InfiniPath driver by default. A switch that supports and is configured for 4KB
MTU is also required to use this setting. To change this setting, see “Other
Configuration: Changing the MTU Size” on page 5-26.
Green ON
Amber OFF
Signal detected and the physical link is up. Ready to talk
to SM to bring the link fully up.
If this state persists, the SM may be missing or the link
may not be configured.
Use ipath_control -i to verify the software state. If
all HCAs are in this state, then the SM is not running.
Check the SM configuration, or install and run opensmd.
Green ON
Amber ON
The link is configured, properly connected, and ready.
Signal detected. Ready to talk to an SM to bring the link
fully up.
The link is configured. Properly connected and ready to
receive data and link packets.
Green BLINKING (quickly)
Amber ON
Indicates traffic
Green BLINKING
a
Amber BLINKING
Locates the adapter
This feature is controlled by ipath_control -b [On
| Off]
Table Notes
a
This feature is available only on the QLE7240 and QLE7280 adapters.
Table 5-5. LED Link and Data Indicators (Continued)
LED States Indication