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Tip revision: e49d033bddf5b565044e2abe4241353959bc9120 authored by Linus Torvalds on 04 April 2021, 21:15:36 UTC
Linux 5.12-rc6
Tip revision: e49d033
link_power_management_policy.rst
.. SPDX-License-Identifier: GPL-2.0

==========================
Link Power Managent Policy
==========================

This parameter allows the user to set the link (interface) power management.
There are 3 possible options:

=====================   =====================================================
Value			Effect
=====================   =====================================================
min_power		Tell the controller to try to make the link use the
			least possible power when possible.  This may
			sacrifice some performance due to increased latency
			when coming out of lower power states.

max_performance		Generally, this means no power management.  Tell
			the controller to have performance be a priority
			over power management.

medium_power		Tell the controller to enter a lower power state
			when possible, but do not enter the lowest power
			state, thus improving latency over min_power setting.
=====================   =====================================================
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