[openib-general] Re: [PATCH] ib_mad: prevent duplicateoutstanding MADtransactions with same TID

[Hal Rosenstock]

On Thu, 2006-02-23 at 12:53, Sean Hefty wrote: 
> Sean Hefty wrote:
> > I still need to consider this in more detail to see if there isn't some simpler
> > solution that we're overlooking.
> 
> I was thinking about this more, and I'd like to make sure that we identify all 
> separate issues.
> 
> Ignoring RMPP completely, I'm not convinced that we need to take any action.  A 
> request will either generate a response or not.  If no response is generated, 
> checking that a send is a duplicate provides very little protection.  There's 
> only a small window on the send side that such a check would even work, and the 
> receiving side still needs to handle this.  And if a response were generated, I 
> don't see that there's any real issue.
> 
> I'd like to get some agreement on whether we really need to take any action for 
> non-RMPP MADs, then consider what issues RMPP adds.

Sorry for not following this thread completely. 

What's the TID issue (separate from the RMPP issues on top of it) ? Is
it the potential duplication of the TID from different hosts adding
complexity on the SM/SA side ? Is that a fair assesment ?

-- Hal

> - Sean