[openib-general] IBDM and IBMgtSim Proposal Comments

[Fab Tillier]

> From: Hal Rosenstock [mailto:halr at voltaire.com]
> Sent: Thursday, July 07, 2005 10:56 AM
> 
> In the OpenIB architecture, umad is the lowest layer library and the
> diagnostics are built on that.

That's only true in the *Linux* OpenIB Architecture.  Windows is different - the
access layer already provides support for user-level MAD clients, and the API is
very close (if not identical) to the IBAL interface OpenSM was originally
written to.

> The OSM vendor layer is built on top of
> this. So when the umad and mad libraries are ported to Windows,
> everything on top of this will work. This includes all diagnostics
> (OpenIB ones as well as the additional tools you are proposing to add).

Is there a plan to migrate the Linux umad and MAD libraries and replace the
user-mode MAD support already in the Windows stack?  If so, does it make sense
or are umad and the MAD libraries too closely tied to Linux?

I haven't had a chance to look carefully at the umad interface - does anyone
know how it compares to the IBAL MAD service interface?

- Fab