[ofw] [Fwd: Connection teardown in WinSock Direct and CM related questions]

[Hal Rosenstock]

Hi,

I'm posting this again hoping someone can shed some light on the below.
Thanks in advance.

-- Hal

-------- Forwarded Message --------
From: Hal Rosenstock <hrosenstock at xsigo.com>
To: ofw at lists.openfabrics.org
Subject: Connection teardown in WinSock Direct and CM related questions
Date: Wed, 27 Feb 2008 15:39:42 -0800
Hi,

In the the Windows user mode code for Windows Sockets Direct, it sends
a CM DREQ (ib_cm_dreq) and then just modifies the QP state to error,
forcing a flush of outstanding work items. Can someone explain this ?

Is this a workaround for a CM issue or the normal way to handle
connection termination ? Isn't the DREQ guaranteed to either have a DREP
reply event, or a timeout or error ? Who's responsibility is it to
assure that the QP is moved to an appropriate state (CM or "user"/ULP) ?

Thanks.

-- Hal