[openib-general] [PATCH 0/4] Dispatch communication relatedevents to the IB CM

[Sean Hefty]

>Perhaps we should pursue changing this in the IBTA spec.  Being able to
>post to the SQ while in RTR makes handling of the Comm Est/RTU race with
>the CQ callback much easier to handle.
>
>It would be better if the IB spec permitted posting to the SQ in RTR but
>indicated the SQ would not be processed until the QP moved to RTS.  I
>believe the present Mellanox silicon/firmware implements such behavior.

I think it would be simpler to transition the QP to RTS after sending a REP,
with the restriction that a user may not post sends until an RTU is received, a
communication establish event occurs, or a receive message completes on the QP.

- Sean