[openib-general] QP SQD State processing.

[Devesh Sharma]

Hello all,

I am facing a problem in interprating the statement given in the IB
Spec. It is regarding asynchronous event generation by QP in SQD
state. the Spec says

C10-35 When transitioning into the SQD state, the QP/EE's send logic
must cease processing any additional messages. It must also complete
any outstanding messages on a message boundary, and process any incoming
acknowledgements. The CI must not begin processing additional
messages which had not begun execution when the state transition occurred.

what is the meaning of "message boundary"...?? Is it a descriptor
which is underprocessing Or it means something else?

How HCA behaves? whether HCA generates event immediatly after
processing completion of current descriptor or after completing all
the descreptors for which DB ring is done?

Thanks