Eric Barton wrote:
> Is the following possible?
>
> 1. I listen for connection requests.
>
> 2. RDMA_CM_EVENT_CONNECT_REQUEST is delivered, I rdma_accept() successfully
> and
> return from the callback.
>
> 3. RDMA_CM_EVENT_DISCONNECTED is delivered.
>
> Am I wrong to assume I can only get RDMA_CM_EVENT_DISCONNECTED after I've seen
> RDMA_CM_EVENT_ESTABLISHED? I thought I'd get one of the other callbacks
> (e.g. RDMA_CM_EVENT_CONNECT_ERROR) if something went wrong before the
> ESTABLISHED callback.
This is possible. To see why, we need to follow the IB CM protocol:
client server
listen
connect
send REQ
recv REQ -> causes CONNECT_REQUEST
accept
send REP
recv REP
send RTU
RTU wanders away and gets lost
ESTABLISHED
disconnect
send DREQ
recv DREQ - DISCONNECTED event
From the viewpoint of the client a connection was established, and data could
have been transferred over the connection.
- Sean
_______________________________________________
openib-general mailing list
openib-general@openib.org
http://openib.org/mailman/listinfo/openib-general
To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
