Why does the Intel Gigabit Ethernet Driver run under MSI instead of MSI-X in Red Hat Enterprise Linux 4?
Updated -
Issue
On Red Hat Enterprise Linux 4, 'igb' driver uses MSI (Message Signaled Interrupts) while it's capable of using MSI-X (Message Signaled Interrupts, Extended).
Environment
- Red Hat Enterprise Linux 4
- igb.ko module.
Diagnostic Steps
-
dmesg shows the below logs which indicates the igb module is running with MSI mode:
...
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