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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I see the WHQL signed IPoIB drivers are on Windows Update
now. This brings to light a problem in the IB stack.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>The issue is the PnP hardware id’s generated by the IB
bus for virtual devices are not version specific. This means if I install the
latest IB stack build, Windows Update will still offer to update my IPoIB
drivers, even though they probably would be incompatible with the other IB
stack components. The WHQL drivers are approximately build 614, and I know the
IBAL interface has new functions and a new version number in the current build.
There is absolutely nothing to tell Windows Update that drivers for PnP hardware
id “IBA\IPoIB” in version 614 of the IB stack will not work on a
stack looking for say the 758 build of the PnP hardware id “IBA\IPoIB”.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>It seems like some version number and optionally a vendor
unique id needs to be part of all the PnP id’s generated, to assure updates
only happen between compatible components. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Jan<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
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