[openib-general] Quick RDMA Write with Immediate Data Item question

Roland Dreier rdreier at cisco.com
Fri May 12 13:39:08 PDT 2006


    Steven> With an "RDMA Write with Immediate Data Item" transfer, in
    Steven> the CQE at the destination (the thing that has the
    Steven> Immediate Data it), does the CQE also contain the memory
    Steven> location where the message just got written too? i.e. does
    Steven> the scatter/gather buffer member of the work completion
    Steven> structure get filled in at all? Or do you just get the
    Steven> ImmdDataItem?

It only has the immediate date.  A completion queue entry never has
information about the address where data was written, so it definitely
doesn't in this case.

 - R.



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