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IB/ehca: In case of lost interrupts, trigger EOI to reenable interrupts

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During corner case testing, we noticed that some versions of ehca do
not properly transition to interrupt done in special load situations.
This can be resolved by periodically triggering EOI through H_EOI, if
EQEs are pending.

Signed-off-by: Stefan Roscher <stefan.roscher@de.ibm.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Stefan Roscher
2008-07-14 23:48:47 -07:00
committed by Roland Dreier
parent 3e255eac56
commit 6f7bc01a73
3 changed files with 18 additions and 2 deletions
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drivers/infiniband/hw/ehca/hcp_if.h
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@ -260,5 +260,6 @@ u64 hipz_h_error_data(const struct ipz_adapter_handle adapter_handle,
const u64 ressource_handle,
void *rblock,
unsigned long *byte_count);
u64 hipz_h_eoi(int irq);
#endif /* __HCP_IF_H__ */