[ofa-general] [PATCH 10/11]: IB/ipoib modify cq params

[Or Gerlitz]

Eli Cohen wrote:
> Implement support for modifying IPOIB CQ moderation params
> 
> This can be used to tune at run time the paramters controlling
> the event (interrupt) generation rate and thus reduce the overhead
> incurred by hadling interrupts resulting in better throughput.

I think we have to carefully think if/how does this feature goes hand in 
hand with NAPI. Since NAPI is not optional, with this feature the 
network stack tries to do its best to reduce interrupts with the NAPI 
logic, and on top of that the HW is instructed to apply this logic 
before issuing an interrupt.

Does the need here suggests that NAPI can be improved? if yes how? maybe 
for some infiniband devices interrupt moderation for itself would be 
better so NAPI should be disabled?

To suggest this for merge, I think you would need to share the list with 
the IPoIB results you had with NAPI vs with NAPI AND interrupt moderation.

Or.