Virtual Storport miniport question
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From: skarthikselvan on 19 May 2008 12:20 Hi All, 1) I included #include <wdm.h> and #include <storport.h> in my VMiniport driver. I am not including <miniport.h> in VMiniport driver because I can't include wdm.h and miniport.h together. Since I don't have any code example, I am proceeding like this. 2) I provided AddDevice() and PnP entry points to my VMiniport driver. Power and PnP can come via StorPort Driver through HwAdapterControl entry point. Depending upon SCSI_ADAPTER_CONTROL_TYPE in this call, I have to handle PnP and power. My driver will also directly gets calls from PnP. Since I don't have any sample code in DDK, Can anybody confirm me whether my understanding is right? Thanks karthikselvan
From: GNR on 19 May 2008 13:37 "skarthikselvan(a)gmail.com" wrote: > Hi All, > > 1) I included #include <wdm.h> and #include <storport.h> in my > VMiniport driver. I am not including <miniport.h> in VMiniport driver > because I can't include wdm.h and miniport.h together. Since I don't > have any code example, I am proceeding like this. Why can't you only have <miniport.h>? > > 2) I provided AddDevice() and PnP entry points to my VMiniport driver. > Power and PnP can come via StorPort Driver through HwAdapterControl > entry point. Depending upon SCSI_ADAPTER_CONTROL_TYPE in this call, I > have to handle PnP and power. My driver will also directly gets calls > from PnP. Is it not possible for you to implement a Storport-Miniport as a virtual driver? You anyway have to install it manually. > > Since I don't have any sample code in DDK, Can anybody confirm me > whether my understanding is right? > > Thanks > karthikselvan >
From: skarthikselvan on 19 May 2008 23:54 > > Why can't you only have <miniport.h>? <karthikselvan> I have to call functions like StorPortInitialize() present in Storport driver so I can't only have miniport.h > > > 2) I provided AddDevice() and PnP entry points to my VMiniport driver. > > Power and PnP can come via StorPort Driver through HwAdapterControl > > entry point. Depending upon SCSI_ADAPTER_CONTROL_TYPE in this call, I > > have to handle PnP and power. My driver will also directly gets calls > > from PnP. > > Is it not possible for you to implement a Storport-Miniport as a virtual > driver? You anyway have to install it manually. <karthikselvan> It is a virtual miniport storport driver. It is not just a virtual driver. > > > > Since I don't have any sample code in DDK, Can anybody confirm me > > whether my understanding is right? > > > Thanks > > karthikselvan
From: GNR on 20 May 2008 01:17 "skarthikselvan(a)gmail.com" wrote: > > > > > Why can't you only have <miniport.h>? > <karthikselvan> I have to call functions like StorPortInitialize() > present in Storport driver so I can't only have miniport.h I am asking about miniport.h instead of wdm.h. storport.h is anyway required > > > > > > 2) I provided AddDevice() and PnP entry points to my VMiniport driver. > > > Power and PnP can come via StorPort Driver through HwAdapterControl > > > entry point. Depending upon SCSI_ADAPTER_CONTROL_TYPE in this call, I > > > have to handle PnP and power. My driver will also directly gets calls > > > from PnP. > > > > Is it not possible for you to implement a Storport-Miniport as a virtual > > driver? You anyway have to install it manually. > > <karthikselvan> It is a virtual miniport storport driver. It is not > just a virtual driver. i am also talking about a virtual storport-miniport driver. Why is it required to be a WDM driver? > > > > > > > > Since I don't have any sample code in DDK, Can anybody confirm me > > > whether my understanding is right? > > > > > Thanks > > > karthikselvan > >
From: skarthikselvan on 20 May 2008 06:43
On May 20, 10:17 am, GNR <G...(a)discussions.microsoft.com> wrote: > "skarthiksel...(a)gmail.com" wrote: > > > > Why can't you only have <miniport.h>? > > <karthikselvan> I have to call functions like StorPortInitialize() > > present in Storport driver so I can't only have miniport.h > > I am asking about miniport.h instead of wdm.h. storport.h is anyway required If I include only miniport.h and storport.h, I can't include safe string ntstrsafe.h file (Ntdef repeatedly defined in these header files). Safe string operations are important because I am doing lot of string operations for iSCSI. Another important point is I receive PNP IRPs from PnP if my StorPort attachment fails. > > > Is it not possible for you to implement a Storport-Miniport as a virtual > > > driver? You anyway have to install it manually. > > > <karthikselvan> It is a virtual miniport storport driver. It is not > > just a virtual driver. > > i am also talking about a virtual storport-miniport driver. Why is it > required to be a WDM driver? <karthikselvan> There is no requirement to be a WDM driver. I thought about virtual driver first and finally moved towards WDM because the interfaces are clear, all error paths are handled and plenty of documentations are available in DDK. If Microsoft says, WDM driver can't used as a Virtual Storport miniport driver, I have to change my design. To be a WDM, all I have to do is implement some entry points. Let me know if I miss something. |