Adding upstream version 2.8.upstream/2.8

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 53 insertions, 0 deletions

diff --git a/Documentation/nvme-wdc-vs-device-waf.txt b/Documentation/nvme-wdc-vs-device-waf.txt
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+nvme-wdc-vs-device-waf(1)
+=========================
+
+NAME
+----
+nvme-wdc-vs-device-waf - Calculates the device write amplification factor and
+prints both TLC and SLC results
+
+SYNOPSIS
+--------
+[verse]
+'nvme wdc vs-device-waf' <device> [--output-format=<normal|json> -o <normal|json>]
+			[--namespace-id=<nsid> | -n <nsid>]
+
+DESCRIPTION
+-----------
+For the NVMe device given, calculates the device TLC and SLC write 
+amplification factor.
+
+The <device> parameter is mandatory and may be either the NVMe character
+device (ex: /dev/nvme0) or block device (ex: /dev/nvme0n1).
+
+This will only work on WDC devices supporting this feature.
+Results for any other device are undefined.
+
+On success it returns 0, error code otherwise.
+
+OPTIONS
+-------
+-o <fmt>::
+--output-format=<fmt>::
+	Set the reporting format to 'normal', or
+	'json'. Only one output format can be used at a time.
+	Default is normal.
+
+-n <nsid>::
+--namespace-id=<nsid>::
+	Sets the command's nsid value to the given nsid. Defaults to
+	0xffffffff if not given. This option may not affect anything
+	depending on the log page, which may or may not be specific to
+	a namespace.
+
+EXAMPLES
+--------
+* Has the program issue WDC vs-device-waf plugin Command :
++
+------------
+# nvme wdc vs-device-waf /dev/nvme0
+------------
+
+NVME
+----
+Part of the nvme-user suite.