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<p class="MsoNormal"><span style="font-family:"Courier New";color:#1F497D">Hi Ray,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New";color:#1F497D">Well stated. However, I confess that I find it odd that Microsoft would not consider providing a WMI interface. I believe that a WMI interface would satisfy their security concerns.
Has this been discussed with Microsoft? I would be happy to provide a simple definition of a WMI class which would provide methods for the desired interaction with a NVMe controller / adapter.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New";color:#1F497D">Best regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New";color:#1F497D">Robert.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Robles, Raymond C [<a href="mailto:raymond.c.robles@intel.com">mailto:raymond.c.robles@intel.com</a>]
<br>
<b>Sent:</b> Thursday, November 07, 2013 3:29 PM<br>
<b>To:</b> Robert Randall (rrandall); <a href="mailto:nvmewin@lists.openfabrics.org">
nvmewin@lists.openfabrics.org</a><br>
<b>Cc:</b> Mayes, Barrett N<br>
<b>Subject:</b> RE: [nvmewin] NVMe in-box driver in Win8.1/Server 2012 R2 - some challenges<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Times New Roman","serif";color:#44546A">Hi Robert,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Times New Roman","serif";color:#44546A"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Times New Roman","serif";color:#44546A">Microsoft has been very adamant about not supporting pass through IOCTLs (via IOCTL_SCSI_MINIPORT) and the potential security threat this mechanism poses.
There is a potential for them to listen to suggestions for workarounds, or alternatives, to pass through IOCTLs. However, they have been very clear about not supporting pass through IOCTLs.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Times New Roman","serif";color:#44546A"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Times New Roman","serif";color:#44546A">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Times New Roman","serif";color:#44546A">Ray<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Times New Roman","serif";color:#44546A"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>From:</b> <a href="mailto:nvmewin-bounces@lists.openfabrics.org">
nvmewin-bounces@lists.openfabrics.org</a> [<a href="mailto:nvmewin-bounces@lists.openfabrics.org">mailto:nvmewin-bounces@lists.openfabrics.org</a>]
<b>On Behalf Of </b>Robert Randall (rrandall)<br>
<b>Sent:</b> Thursday, November 07, 2013 2:18 PM<br>
<b>To:</b> <a href="mailto:nvmewin@lists.openfabrics.org">nvmewin@lists.openfabrics.org</a><br>
<b>Subject:</b> [nvmewin] NVMe in-box driver in Win8.1/Server 2012 R2 - some challenges<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Courier New"">Hello all,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Courier New"">We have been testing the NVMe in-box driver included in Windows 8.1 and Server 2012 R2. It does not appear to have any IOCTL support for ADMIN commands. This is very sad. This
renders the in-box driver useless for uses cases where VU ADMIN commands are used to, for example, manage NVM Express Namespaces.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Courier New"">Have others had a similar experience with the in-box driver?
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Courier New"">Microsoft appears willing to listen to requests to add capabilities to the in-box driver. This represents an opportunity for all of us participating in the NVM Express ecosystem
to express our requirements to Microsoft with one voice.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Courier New"">If you believe that the in-box driver is lacking critical features (as I do) I would be happy to coordinate a unified response to the Microsoft program manager responsible for the
in-box device driver.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Courier New"">Perhaps this would be a useful topic for the next technical conference call?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Courier New"">Best regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Courier New"">Robert<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Lucida Console"">Robert Randall<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Lucida Console"">mobile: 612.770.9612<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Lucida Console""><a href="mailto:rrandall@micron.com">rrandall@micron.com</a><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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