[PATCH REPOST] IB/ehca: In case of lost interrupts, trigger EOI to reenable interrupts

[Paul Mackerras]

Roland Dreier writes:

>  > > So just to be clear: this is a workaround for a hardware/firmware bug?
> 
>  > Yes it is.
> 
> OK, so paulus et al... does it seem like a good approach to call H_EOI
> from driver code (given that this driver makes tons of other hcalls)?

If this workaround is approved by the relevant hardware & firmware
folks, and demonstrably fixes the bug, then I am happy with it.

Paul.