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

[Or Gerlitz]

Rimmer, Todd wrote:
  > 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.

Compared to the actual need and complexity induced on the driver for 
supporting proxy-ing of TX WRs, I think this (IBTA-ing and implement-ing 
the thing) is overdoing which should be avoided.

Since with Sean's patch it is ensured that an established event would be 
generated by the CM, a passive side IB consumer (eg iSER/SRP/NFS 
targets) can queue an incoming RX till the event comes in.

Or.