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ipmi: Fixes for ipmi_opal(powernv)

Description

ipmi: Fixes for ipmi_opal(powernv)

  • Crank the OPAL state machine during the receive loop, to make sure the pollers are executed
  • Add a proper detach function, so the module can be unloaded and reloaded at runtime.

It still doesn't reliably work 100% of the time on POWER9, and it appears
timing and/or cache related. It may work on POWER8 now.

MFC after: 2 weeks

Details

Provenance
jhibbitsAuthored on
Parents
rS345790: powernv: Port OPAL asynchronous framework to use the new message framework
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