From 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 12:05:51 +0200 Subject: Adding upstream version 5.10.209. Signed-off-by: Daniel Baumann --- .../scsi/link_power_management_policy.rst | 25 ++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 Documentation/scsi/link_power_management_policy.rst (limited to 'Documentation/scsi/link_power_management_policy.rst') diff --git a/Documentation/scsi/link_power_management_policy.rst b/Documentation/scsi/link_power_management_policy.rst new file mode 100644 index 000000000..64288dcf1 --- /dev/null +++ b/Documentation/scsi/link_power_management_policy.rst @@ -0,0 +1,25 @@ +.. 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. +===================== ===================================================== -- cgit v1.2.3