DOKK / manpages / debian 12 / ndctl / cxl-enable-port.1.en
CXL-ENABLE-PORT(1) cxl Manual CXL-ENABLE-PORT(1)

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

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.

-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 © 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.

cxl-disable-port(1)

2023-02-24 cxl