CXL-DISABLE-PORT(1) cxl Manual CXL-DISABLE-PORT(1) # [NAME](#NAME) cxl-disable-port - disable / hot-remove a given CXL port and descendants # [SYNOPSIS](#SYNOPSIS) ``` cxl disable-port [..] [] ``` For test and debug scenarios, disable a CXL port and any memory devices dependent on this port being active for CXL.mem operation. Given any enable or disable command, if the operation is a no-op due to the current state of a target (i.e. already enabled or disabled), it is still considered successful when executed even if no actual operation is performed. The target can be a bus, decoder, memdev, or region. The operation will still succeed, and report the number of bus/decoder/memdev/region operated on, even if the operation is a no-op. # [OPTIONS](#OPTIONS) -e, --endpoint Toggle from treating the port arguments as Switch Port identifiers to Endpoint Port identifiers. -f, --force DANGEROUS: Override the safety measure that blocks attempts to disable a port if the tool determines a descendent memdev is in active usage. Recall that CXL memory ranges might have been established by platform firmware and disabling an active device is akin to force removing memory from a running system. --debug Turn on additional debug messages including library debug. # [COPYRIGHT](#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](#SEE_ALSO) [cxl-disable-port(1)](/man/os/ndctl/cxl-disable-port.1) 2026-10-30 cxl --- Document: cxl-disable-port(1) from ndctl 85-r4 (Chainguard OS) Source: https://github.com/pmem/ndctl