NDCTL User Guide
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v73
  • NDCTL User Guide
  • Installing NDCTL, DAXCTL, and CXL-CLI Utilities
    • Installing NDCTL and DAXCTL Packages on Linux
    • Installing the CXL-CLI Package on Linux
    • Installing NDCTL, DAXCTL, and CXL-CLI from Source on Linux
  • Quick Start
  • Concepts
    • NVDIMM Devices
    • PMEM and BLK Modes
    • Regions
      • Regions, Atomic Sectors, and DAX
    • Label Storage Area (LSA)
    • Namespaces
  • Managing NVDIMMs
  • Managing Regions
  • Managing Label Storage Areas (LSA)
  • Managing Namespaces
  • Managing NVDIMM Security
  • NDCTL Man Pages
    • ndctl(1)
    • ndctl-activate-firmware(1)
    • ndctl−check−labels(1)
    • ndctl−check−namespace(1)
    • ndctl−clear−errors(1)
    • ndctl−create−namespace(1)
    • ndctl−destroy−namespace(1)
    • ndctl−disable−dimm(1)
    • ndctl−disable−namespace(1)
    • ndctl−disable−region(1)
    • ndctl−enable−dimm(1)
    • ndctl-enable−namespace(1)
    • ndctl−enable−region(1)
    • ndctl−freeze−security(1)
    • ndctl−init−labels(1)
    • ndctl−inject−error(1)
    • ndctl−inject−smart(1)
    • ndct-list(1)
    • ndctl−load−keys(1)
    • ndctl−monitor(1)
    • ndctl-read-infoblock(1)
    • ndctl−read−labels(1)
    • ndctl−remove−passphrase(1)
    • ndctl−sanitize−dimm(1)
    • ndctl−setup−passphrase(1)
    • ndctl−start−scrub(1)
    • ndctl-update-firmware(1)
    • ndctl-update-passphrase(1)
    • ndctl−wait−overwrite(1)
    • ndctl−wait−scrub(1)
    • ndctl-write-infoblock(1)
    • ndctl−write−labels(1)
    • ndctl−zero−labels(1)
  • DAXCTL Man Pages
    • daxctl(1)
    • daxctl-create-device (1)
    • daxctl-destroy-device (1)
    • daxctl-disable-device (1)
    • daxctl-enable-device (1)
    • daxctl-list(1)
    • daxctl−migrate−device−model(1)
    • daxctl−offline−memory(1)
    • daxctl−online−memory(1)
    • daxctl−reconfigure−device(1)
  • CXL Man Pages
    • cxl(1)
    • cxl-disable-memdev(1)
    • cxl-disable-port(1)
    • cxl-enable-memdev(1)
    • cxl-enable-port(1)
    • cxl-list(1)
    • cxl-read-labels(1)
    • cxl-write-labels(1)
    • cxl-zero-labels(1)
  • Troubleshooting
  • Glossary
  • Reference Material
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  • NAME
  • SYNOPSIS
  • OPTIONS
  • COPYRIGHT
  • SEE ALSO

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  1. CXL Man Pages

cxl-enable-port(1)

NAME

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

SYNOPSIS

cxl disable-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

If the cxl tool was built with debug disabled, turn on debug messages.

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

Previouscxl-enable-memdev(1)Nextcxl-list(1)

Last updated 3 years ago

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cxl-disable-port(1)