Section 1 · User commands

cxl-disable-port.1

Package: cxl-cli

CXL−DISABLE−PORT

NAME
SYNOPSIS
OPTIONS
COPYRIGHT
SEE ALSO

NAME

cxl-disable-port − disable / hot−remove a given CXL port and descendants

SYNOPSIS

cxl disable−port <port0> [<port1>..<portN>] [<options>]

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

−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 © 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.