[Openib-windows] [PATCH] IPoIB ids

[Fabian Tillier]

Hi Yossi,

On 9/20/06, Yossi Leybovich <sleybo at mellanox.co.il> wrote:
>
> Fab
>
> Can you pls explain what L"IBA\\SID_1000066a00020000\0\0" as
> IPOIB_COMPAT_ID stand for ?

That's a relic of when the IPoIB driver was not spec compliant.  It
can be eliminated.

> This patch convert the guid we report as unique id to host order so we
> can
> easily know which of the ports guids this IPoIB connect to.

I don't think this is a good idea - this will require any users that
update to a new release to reconfigure their IPoIB devices since they
will show up with a new unique ID and the OS will treat them as
entirely different devices.   None of the settings will be remembered
or carried over.

I don't think there's any requirement to make the unique ID human
readable.  In any case, knowing that the GUID is in network order is
all that's required to allow people to identify the port GUID.  In
addition, the device hierarchy will show what IPoIB devices belong to
which HCAs, and the device location (in the property sheets for the
device) list the port number, e.g. "PCI bus 1, device 0, function 0,
port 1".  If a user wants the port GUIDs, that user should use a tool
like vstat.

- Fab