[ofa-general] RE: What is the size of async event queue ?

Tang, Changqing changquing.tang at hp.com
Fri Mar 2 16:38:07 PST 2007


Thanks for the general idea. 

--CQ 

> -----Original Message-----
> From: Roland Dreier [mailto:rdreier at cisco.com] 
> Sent: Friday, March 02, 2007 6:13 PM
> To: Tang, Changqing
> Cc: openib-general at openib.org
> Subject: Re: What is the size of async event queue ?
> 
>  > If a QP goes to error state, I will get completion error, 
> do I still get  > any of IBV_EVENT_QP_FATAL/REQ_ERR/ACCESS_ERR event?
> 
> It depends on why the QP is transitioned to the error state.  
> You can look at section 11.6.3.2 of the IB spec for details 
> on async errors, but the basic idea is that any error that 
> can be reported in a work completion will be reported that 
> way; only QP errors that don't have a way to be reported via 
> a CQ will generate an async event.
> 
>  - R.
> 




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