Files
Linux_Drivers/linux_5.10/Documentation/scsi/link_power_management_policy.rst
sam.xiang 5c7dd7acc3 [linux] create linux_5.10.4 from T-head official:
repo: https://github.com/T-head-Semi/linux
	commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb

Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
2023-03-10 20:32:41 +08:00

26 lines
1003 B
ReStructuredText

.. 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.
===================== =====================================================