Adding upstream version 1.12.

Signed-off-by: Daniel Baumann <daniel@debian.org>

Documentation/nvme-show-regs.txt

@@ -0,0 +1,63 @@
+nvme-id-ns(1)
+=============
+
+NAME
+----
+nvme-show-regs - Reads and shows the defined NVMe controller registers for
+NVMe over PCIe or the controller properties for NVMe over Fabrics.
+
+SYNOPSIS
+--------
+[verse]
+'nvme show-regs' <device>	[--human-readable | -H]
+				[--output-format=<FMT> | -o <FMT>]
+
+DESCRIPTION
+-----------
+For the NVMe over PCIe device given, sends an identify namespace command and
+provides the result and returned structure.
+For the NVMe over Fabrics device given, sends a fabric command and provides
+the result and returned structure.
+
+The <device> parameter is mandatory and must be the nvme admin character
+device (ex: /dev/nvme0). For NVMe over PCIe, the program uses knowledge of the
+sysfs layout to map the device to the pci resource stored there and mmaps the
+memory to get access to the registers. For NVMe over Fabrics, the programs
+sends a fabric command to get the properties of the target NVMe controller.
+Only the supported properties are displayed.
+
+OPTIONS
+-------
+-H::
+--human-readable::
+       Display registers or supported properties in human readable format.
+
+-o <format>::
+--output-format=<format>::
+              Set the reporting format to 'normal', 'json', or
+              'binary'. Only one output format can be used at a time.
+
+EXAMPLES
+--------
+* Show the NVMe over PCIe controller registers or the NVMe over Fabric controller
+properties in a binary format:
++
+------------
+# nvme show-regs /dev/nvme0 -o binary
+------------
+* Show the NVMe over PCIe controller registers or the NVMe over Fabric controller
+properties in a human readable format:
++
+------------
+# nvme show-regs /dev/nvme0 -H
+------------
+* Show the NVMe over PCIe controller registers or NVMe-oF controller properties
+in a json format:
++
+------------
+# nvme show-regs /dev/nvme0 -o json
+------------
+
+NVME
+----
+Part of the nvme-user suite