Adding upstream version 2.4.

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

Documentation/nvme-check-tls-key.txt

@@ -8,18 +8,42 @@ nvme-check-tls-key - Check a generated NVMe TLS PSK
 SYNOPSIS
 --------
 [verse]
-'nvme check-tls-key' [--key=<key> ]
+'nvme check-tls-key' [--keyring=<name>  | -k <name> ]
+		     [--keytype=<type>  | -t <type> ]
+		     [--hostnqn=<nqn>   | -n <nqn>  ]
+		     [--subsysnqn=<nqn> | -c <nqn>  ]
+		     [--keydata=<key>   | -d <key>  ]
 
 DESCRIPTION
 -----------
 Checks if the key is a valid NVMe TLS PSK in the PSK interchange format
-NVMeTLSkey-1:01:VRLbtnN9AQb2WXW3c9+wEf/DRLz0QuLdbYvEhwtdWwNf9LrZ:
-
+'NVMeTLSkey-1:01:<base64-encoded data>:', and stores the derived 'retained'
+TLS key in the keyring if the subsystem NQN is specified.
 
 OPTIONS
 -------
--k <key>::
---key=<key>::
+-k <name>::
+--keyring=<name>::
+	Name of the keyring into which the 'retained' TLS key should be
+	stored. Default is '.nvme'.
+
+-t <type>::
+--keytype=<type>::
+	Type of the key for resulting TLS key.
+	Default is 'psk'.
+
+-n <nqn>::
+--hostnqn=<nqn>::
+	Host NVMe Qualified Name (NQN) to be used to derive the
+	'retained' TLS key
+
+-c <nqn>::
+--subsysnqn=<nqn>::
+	Subsystem NVMe Qualified Name (NQN) to be used to derive the
+	'retained' TLS key
+
+-d <key>::
+--keydata=<key>::
 	Key to be checked.
 
 EXAMPLES