Caitlin Bestler wrote:
On Nov 27, 2007 6:54 AM, Kanevsky, Arkady <[EMAIL PROTECTED]> wrote:
ULP can post recvs before connection is established but not to send
queue
prior to connection establishment.
ULP can post sends only after it is notified that the connection is established.
The issue is when the iWARP layer can issue this notification.
If the MPA layer implements fencing on its own, then the notification can
be provided immediately after the MPA Request/Response exchange.
If not, it must wait for the first MPA frame. The problem is that
implementations
that adhere to closely to the RDMAC verbs can obtain no information about
the connection unless there is a CQE producing event.
The idea for this "hack" is that the passive side (the side that sends
the MPA response) will hold off posting the ESTABLISHED event to the
rdma-cm ULP until after it receives this 0B Read Request from the client...
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