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<div class="moz-cite-prefix">Microsoft's position on this seems odd
to me. I don't think it's good for NVMe or Microsoft. If they're
not providing a pass through interface, then people are either
going to<br>
<br>
1. Ship their own drivers so they can do things like
create/delete/modify namespaces<br>
2. Need to ship configuration utility on a separate linux live CD
to do those types of things.<br>
<br>
I too understand their position, but the solution they've
delivered is going to result in a bad user experience.<br>
<br>
On 11/8/2013 6:20 AM, Robert Randall (rrandall) wrote:<br>
</div>
<blockquote
cite="mid:70C73440F9F7C24F81A11355C292A9B5C10FFCBF@NTXBOIMBX04.micron.com"
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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>
<div>
<div style="border:none;border-top:solid #B5C4DF
1.0pt;padding:3.0pt 0in 0in 0in">
<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 moz-do-not-send="true"
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
moz-do-not-send="true"
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>
</div>
</div>
<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>
<div>
<div style="border:none;border-top:solid #E1E1E1
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b>From:</b> <a moz-do-not-send="true"
href="mailto:nvmewin-bounces@lists.openfabrics.org">
nvmewin-bounces@lists.openfabrics.org</a> [<a
moz-do-not-send="true"
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 moz-do-not-send="true"
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>
</div>
</div>
<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 moz-do-not-send="true"
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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