NAME

       cxl-read-labels - read out the label area on a CXL memdev

SYNOPSIS

       cxl read-labels <mem0> [<mem1>..<memN>] [<options>]

DESCRIPTION

       The region label area is a small persistent partition of capacity available on some CXL
       memory devices. The label area is used to and configure or determine the set of memory
       devices participating in different interleave sets. This command dumps the raw binary data
       in a memdev’s label area to stdout or a file. In the multi-memdev case the data is
       concatenated.

OPTIONS

       <memory device(s)>
           A memX device name, or a memdev id number. Restrict the operation to the specified
           memdev(s). The keyword all can be specified to indicate the lack of any restriction.

       -S, --serial
           Rather an a memdev id number, interpret the <memdev> argument(s) as a list of serial
           numbers.

       -s, --size=
           Limit the operation to the given number of bytes. A size of 0 indicates to operate
           over the entire label capacity.

       -O, --offset=
           Begin the operation at the given offset into the label area.

       -v
           Turn on verbose debug messages in the library (if libcxl was built with logging and
           debug enabled).

       -o, --output
           output file

COPYRIGHT

       Copyright © 2016 - 2022, Intel Corporation. License GPLv2: GNU GPL version 2
       http://gnu.org/licenses/gpl.html. This is free software: you are free to change and
       redistribute it. There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

       cxl-write-labels(1), cxl-zero-labels(1), CXL-2.0 9.13.2