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Diffstat (limited to 'Documentation/nvme-cmdset-ind-id-ns.txt')
| -rw-r--r-- | Documentation/nvme-cmdset-ind-id-ns.txt | 86 |
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diff --git a/Documentation/nvme-cmdset-ind-id-ns.txt b/Documentation/nvme-cmdset-ind-id-ns.txt new file mode 100644 index 0000000..fa55c83 --- /dev/null +++ b/Documentation/nvme-cmdset-ind-id-ns.txt @@ -0,0 +1,86 @@ +nvme-cmdset-ind-id-ns(1) +======================== + +NAME +---- +nvme-cmdset-ind-id-ns - Send NVMe I/O Command Set Independent Identify Namespace, return result and structure. + +SYNOPSIS +-------- +[verse] +'nvme cmdset-ind-id-ns' <device> [--namespace-id=<nsid> | -n <nsid>] + [-b | --raw-binary] + [--human-readable | -H] + [--output-format=<fmt> | -o <fmt>] + +DESCRIPTION +----------- +For the NVMe device given, sends an I/O Command Set Independent +identify namespace command and provides the result and returned structure. + +The <device> parameter is mandatory and may be either the NVMe character +device (ex: /dev/nvme0), or a namespace block device (ex: /dev/nvme0n1). +If the character device is given, the `'--namespace-id'` option is +mandatory, otherwise it will use the ns-id of the namespace for the block +device you opened. For block devices, the ns-id used can be overridden +with the same option. + +On success, the structure may be returned in one of several ways depending +on the option flags; the structure may be parsed by the program or the +raw buffer may be printed to stdout. + +OPTIONS +------- +-n <nsid>:: +--namespace-id=<nsid>:: + Retrieve the identify namespace structure for the given nsid. This + is required for the character devices, or overrides the block nsid + if given. + +-b:: +--raw-binary:: + Print the raw buffer to stdout. Structure is not parsed by + program. This overrides the vendor specific and human readable options. + +-H:: +--human-readable:: + This option will parse and format many of the bit fields + into human-readable formats. + +-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 +-------- +* Has the program interpret the returned buffer and display the known +fields in a human readable format: ++ +------------ +# nvme cmdset-ind-id-ns /dev/nvme0n1 +------------ ++ + +* If using the character device or overriding namespace id: ++ +------------ +# nvme cmdset-ind-id-ns /dev/nvme0 -n 1 +# nvme cmdset-ind-id-ns /dev/nvme0n1 -n 1 +# nvme cmdset-ind-id-ns /dev/nvme0 --namespace-id=1 +------------ ++ + +* Have the program return the raw structure in binary: ++ +------------ +# nvme cmdset-ind-id-ns /dev/nvme0n1 --raw-binary > id_ns.raw +# nvme cmdset-ind-id-ns /dev/nvme0n1 -b > id_ns.raw +------------ ++ +It is probably a bad idea to not redirect stdout when using this mode. + +NVME +---- +Part of the nvme-user suite |