[ofa-general] Re: iWARP peer-to-peer CM proposal

[Caitlin Bestler]

On Nov 27, 2007 6:54 AM, Kanevsky, Arkady <Arkady.Kanevsky at netapp.com> 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.