[openib-general] cq polling order

Devesh Sharma devesh28 at gmail.com
Mon Aug 7 00:06:38 PDT 2006


Hello everybody,
I have a query regarding cq poll concept.
Consider the following situation:

Consumer has posted 2 SEND operations after that it posted 1 RDMA_READ
operation and againg 1 SEND operation ( Not posted with Barrier Fence, Is it
expected from consumer that it can post without Barrier Fence after RDMA
READ? ), now while polling in what order completions should be returned by
verbs?

Is it expected by consumer that completions will be polled in posting order
or they can come out of order?
Polling order 2 SEND_COMP, 1 RDMA_READ_COMP, 1 SEND_COMP
 OR
Polling order 3 SEND_COMP, 1 RDMA_READ_COMP

which is expected?
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