[RHEL 5] Setting IRQ affinity does not work with MSI devices

Solution Verified - Updated -

Issue

  • Not able to bind the IRQ's coming from a set of NIC to one CPU
  • IRQ affinity on Broadcom NetExtreme with FlexNIC switch
  • Not able to bind msi IRQs to a CPU
  • Setting IRQ affinity does not work with MSI devices

Environment

  • RHEL 5
  • Device with MSI interrupts

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