CXL-ENABLE-PORT(1)                cxl Manual                CXL-ENABLE-PORT(1)

NAME
       cxl-enable-port - activate / hot-add a given CXL port

SYNOPSIS
       cxl enable-port <port0> [<port1>..<portN>] [<options>]

       A port typically autoenables at initial device discovery. However, if
       it was manually disabled this command can trigger the kernel to
       activate it again. This involves detecting the state of the HDM (Host
       Managed Device Memory) Decoders and validating that CXL.mem is enabled
       for each port in the device's hierarchy.

OPTIONS
       -e, --endpoint
           Toggle from treating the port arguments as Switch Port identifiers
           to Endpoint Port identifiers.

       -m, --enable-memdevs
           Try to enable descendant memdevs after enabling the port. Recall
           that a memdev is only enabled after all CXL ports in its device
           topology ancestry are enabled.

       --debug
           Turn on additional debug messages including library debug.

COPYRIGHT
       Copyright (C) 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-disable-port(1)

cxl                               2024-01-12                CXL-ENABLE-PORT(1)