From dc597ce8df5ae6efd2728a2d7ba7d92486028f79 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Fri, 2 Jul 2021 22:40:30 +0200
Subject: Adding upstream version 1.12.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 Documentation/nvme-write-zeroes.txt | 87 +++++++++++++++++++++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 Documentation/nvme-write-zeroes.txt

(limited to 'Documentation/nvme-write-zeroes.txt')

diff --git a/Documentation/nvme-write-zeroes.txt b/Documentation/nvme-write-zeroes.txt
new file mode 100644
index 0000000..02adee1
--- /dev/null
+++ b/Documentation/nvme-write-zeroes.txt
@@ -0,0 +1,87 @@
+nvme-zeroes(1)
+==============
+
+NAME
+----
+nvme-write-zeroes - Send an NVMe write zeroes command, return results
+
+SYNOPSIS
+--------
+[verse]
+'nvme-write-zeroes' <device> [--start-block=<slba> | -s <slba>]
+			[--block-count=<nlb> | -c <nlb>]
+			[--ref-tag=<reftag> | -r <reftag>]
+			[--prinfo=<prinfo> | -p <prinfo>]
+			[--app-tag-mask=<appmask> | -m <appmask>]
+			[--app-tag=<apptag> | -a <apptag>]
+			[--deac | -d]
+			[--limited-retry | -l]
+			[--force-unit-access | -f]
+			[--namespace-id=<nsid> | -n <nsid>]
+
+DESCRIPTION
+-----------
+The Write Zeroes command is used to set a range of logical blocks to 0.
+
+OPTIONS
+-------
+--start-block=<slba>::
+-s <slba>::
+	Start block.
+
+--block-count=<nlb>::
+-c <nlb>::
+	Number of logical blocks to write zeroes.
+
+--prinfo=<prinfo>::
+-p <prinfo>::
+	Protection Information field definition.
++
+[]
+|=================
+|Bit|Description
+|3|PRACT: Protection Information Action. When set to 1, PI is stripped/inserted
+on read/write when the block format's metadata size is 8. When set to 0,
+metadata is passes.
+|2:0|PRCHK: Protection Information Check:
+|2|Set to 1 enables checking the guard tag
+|1|Set to 1 enables checking the application tag
+|0|Set to 1 enables checking the reference tag
+|=================
+
+--ref-tag=<reftag>::
+-r <reftag>::
+	Optional reftag when used with protection information.
+
+--app-tag-mask=<appmask>::
+-m <appmask>::
+	Optional application tag mask when used with protection information.
+
+--app-tag=<apptag>::
+-a <apptag>::
+	Optional application tag when used with protection information.
+
+--limited-retry::
+-l::
+	Sets the limited retry flag.
+
+--deac::
+-d::
+	Sets the DEAC bit, requesting controller deallocate the logical blocks.
+
+--force-unit-access::
+-f::
+	Set the force-unit access flag.
+
+--namespace-id=<nsid>::
+-n <nsid>::
+	Namespace ID use in the command.
+
+EXAMPLES
+EXAMPLES
+--------
+No examples yet.
+
+NVME
+----
+Part of the nvme-user suite
-- 
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