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

[Michael S. Tsirkin]

Quoting Sean Hefty <mshefty at ichips.intel.com>:
> As long as all of the ACKs match to the same RMPP response transaction, 
> this should be okay.  Some of the ACKs will be interpreted as 
> old/duplicates and be discarded.  The first response should be reassembled 
> on the requester side. Additional responses may time out waiting for an ACK 
> that gets matched to another request, but that shouldn't matter.
> 
> If this is not the case, I'd like to understand why this isn't happening.  
> There may be a more serious issue that we're overlooking.

What you say makes sense, but I think thats not the case.
I'll let Jack speak about this tomorrow - it was him that debugged this.

-- 
Michael S. Tsirkin
Staff Engineer, Mellanox Technologies