[openib-general] Re: IPOIB_NUM_WC question

[Michael S. Tsirkin]

Quoting r. Shirley Ma <xma at us.ibm.com>:
> Subject: Re: IPOIB_NUM_WC question
> 
> 
>     Shirley> Also I noticed that mthca sends IB_CQ_NEXT_COMP with
>    Shirley> completion entry==0 pretty often, in my netperf test,
>    Shirley> more than 30% time.
> 
> >I can't quite understand this.  What do you mean by sending IB_CQ_NEXT_COMP?
> 
> What I meant the IB_CQ_NEXT_COMP notification was received even if entry==0. There was no wc to poll out from the cq.

Which hardware is it?

-- 
Michael S. Tsirkin
Staff Engineer, Mellanox Technologies