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

[Michael S. Tsirkin]

Quoting r. Sean Hefty <sean.hefty at intel.com>:
> Subject: RE: [PATCH 0/4] Dispatch communication relatedevents to the IB CM
> 
> >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


I think if you post RR on active side in init state, you even can send directly,
right?


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MST