NDCTL User Guide

Introduction

ndctl is a utility for managing the Linux LIBNVDIMM Kernel subsystem. It is designed to work with various non-volatile memory devices (NVDIMMs) from different vendors. The LIBNVDIMM subsystem defines a kernel device model and control message interface for platform NVDIMM resources like those defined by the ACPI v6.0 NFIT (NVDIMM Firmware Interface Table). The latest ACPI and UEFI specifications can be found at uefi.org. Operations supported by ndctl include:
  • Provisioning capacity (namespaces)
  • Enumerating Devices
  • Enabling and Disabling NVDIMMs, Regions, and Namespaces
  • Managing NVDIMM Labels

What's new in v72.1

This release incorporates functionality up to the 5.16 kernel.
Highlights include a new utility and library for interfacing with the 'CXL' drivers and devices, a policy based configuration mechanism for ndctl and daxctl, fixes, test updates, and general additions for the PAPR family of NVDIMMs, more seed device accounting fixes, misc unit test and documentation updates, and fixes to NVDIMM bus scrubbing.
Bug Fixes:
  • Fix iniparser.h include
  • test/monitor: fix conf_file in test_conf_file
Last modified 13d ago