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<p class=MsoNormal>I was moving from WinOF2.0.2 to WinOF2.2.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I found that the ibal registration is changed and verbs
interface is obtained via IRP_MN_QUERY_INTERFACE. Now that our driver supports
RDMA_INTERFACE_VERBS interface and had ibbus as UPF. <o:p></o:p></p>
<p class=MsoNormal>There are only differences to our host driver setup
information file : (1) we have our own private class (i-e we don’t use
infinibandclass) and (2) have our own private guid defined.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I observe the following :<o:p></o:p></p>
<p class=MsoNormal>When ibbus is declared UPF to the class key, host driver
gets loaded . Ibbus is not loaded.<o:p></o:p></p>
<p class=MsoNormal>When ibbus is declared UPF in AddReg directive to the driver,
ibbus is loaded, gets its add device called and then start routine ( I
see that it passes START_IRP down to host driver and host driver successfully
completes START_irp ). IBBUS then tries to query the driver defined rdma
guid interface, irp is passed on to itself.<o:p></o:p></p>
<p class=MsoNormal>This IRP is passed down to the stack below, which well
matches our driver’s FDO but host driver never sees this IRP and hence driver
fails to load.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Will device class and guid cause a concern ?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>Thanks<o:p></o:p></p>
<p class=MsoNormal>Sophia.<o:p></o:p></p>
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