smartmontools for NVMe devices

Hi,
NVMe Spec provides for a SMART/Health Log Page. We would like to use
smartctl for reading the Health Log Page
as it is a standard OSS util for monitoring disks. I have some very basic
queries related to that.

- Does smartmontools have any support/plan for NVMe devices?

- When I run smartctl on my NVMe device, I get the following output:

[root@localhost indro]# smartctl -d scsi --all /dev/nvme0n1
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-3.15.7-200.fc20.x86_64] (local
build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Vendor:               NVMe
Product:              Samsung xxxxxxx
Revision:             xxxx
User Capacity:        3,200,631,791,616 bytes [3.20 TB]
Logical block size:   512 bytes
Rotation Rate:        Solid State Device
Logical Unit id:      0x60025380144d31325361000000010000
Serial number:        1234
Device type:          disk
Local Time is:        Thu Oct  9 09:58:47 2014 EDT
SMART support is:     Unavailable - device lacks SMART capability.

=== START OF READ SMART DATA SECTION ===

Current Drive Temperature:     59 C
Drive Trip Temperature:        238 C

Error Counter logging not supported

[GLTSD (Global Logging Target Save Disable) set. Enable Save with '-S on']
Device does not support Self Test logging


Does this mean that the device needs to implement something like Section
4.21 in
http://www.t13.org/documents/UploadedDocuments/docs2008/D1699r6a-ATA8-ACS.pd
f ?

- Is it possible to support reading NVMe devices SMART/Health Log Page if
there is no support for SMART in the device?
Will be happy to provide a patch if there is some way to implement this for
NVMe devices without SMART support.

TIA,
-Indro


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