doc: add ocp hardware-component-log command

The command lists component descriptions.

Signed-off-by: Tokunori Ikegami <[email protected]>

Documentation/nvme-ocp-hardware-component-log.txt

@@ -0,0 +1,85 @@
+nvme-ocp-hardware-component-log(1)
+==================================
+
+NAME
+----
+nvme-ocp-hardware-component-log - retrieve hardware component log
+
+SYNOPSIS
+--------
+[verse]
+'nvme ocp hardware-component-log' <device> [--comp-id=<num> | -i <num>]
+			[--list | -l] [--verbose | -v]
+			[--output-format=<fmt> | -o <fmt>] [--timeout=<timeout>]
+
+DESCRIPTION
+-----------
+Retrieve hardware component log.
+
+The <device> parameter is mandatory NVMe character device (ex: /dev/nvme0).
+
+This will only work on OCP compliant devices supporting this feature.
+Results for any other device are undefined.
+
+On success it returns 0, error code otherwise.
+
+OPTIONS
+-------
+-i <num>::
+--comp-id=<num>::
+	component identifier
++
+[]
+|=================
+|Value|Definition
+|0x0000| Reserved
+|0x0001 \| 'asic'| Controller ASIC component
+|0x0002 \| 'nand'| NAND Component
+|0x0003 \| 'dram'| DRAM Component
+|0x0004 \| 'pmic'| PMIC Component
+|0x0005 \| 'pcb'| PCB Component
+|0x0006 \| 'cap'| capacitor component
+|0x0007 \| 'reg'| registor component
+|0x0008 \| 'case'| case component
+|0x0009 \| 'sn'| Device Serial Number
+|0x000A \| 'country'| Country of Origin
+|0x000B \| 'hw-rev'| Global Device Hardware Revision
+|0x000C-0x7FFF| Reserved
+|0x8000 \| 'vendor'| Vendor Unique Component
+|0x8001-0xFFFF| Vendor Unique Component
+|=================
+
+-l::
+--list::
+	list component descriptions
+
+-v::
+--verbose::
+	Increase the information detail in the output.
+
+-o <fmt>::
+--output-format=<fmt>::
+	Set the reporting format to 'normal', 'json' or 'binary'. Only one
+	output format can be used at a time.
+
+-t <timeout>::
+--timeout=<timeout>::
+	Override default timeout value. In milliseconds.
+
+EXAMPLES
+--------
+* Has the program issue a set-error-injection
++
+------------
+# nvme ocp hardware-component-log /dev/nvme0
+------------
+
+* Has the program issue a set-error-injection with the asic component list.
++
+------------
+# nvme ocp hardware-component-log /dev/nvme0 -i asic -l
+------------
+
+NVME
+----
+Part of the nvme-user suite.