[nvmewin] NVMe in-box driver in Win8.1/Server 2012 R2 - some challenges

[Robles, Raymond C]

Hi Robert,

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.

Thanks,
Ray

From: nvmewin-bounces at lists.openfabrics.org [mailto:nvmewin-bounces at lists.openfabrics.org] On Behalf Of Robert Randall (rrandall)
Sent: Thursday, November 07, 2013 2:18 PM
To: nvmewin at lists.openfabrics.org
Subject: [nvmewin] NVMe in-box driver in Win8.1/Server 2012 R2 - some challenges

Hello all,

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.

Have others had a similar experience with the in-box driver?

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.

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.

Perhaps this would be a useful topic for the next technical conference call?

Best regards,
Robert

Robert Randall
mobile: 612.770.9612
rrandall at micron.com<mailto:rrandall at micron.com>

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