1.. SPDX-License-Identifier: GPL-2.0 2 3========================== 4Link Power Managent Policy 5========================== 6 7This parameter allows the user to set the link (interface) power management. 8There are 3 possible options: 9 10===================== ===================================================== 11Value Effect 12===================== ===================================================== 13min_power Tell the controller to try to make the link use the 14 least possible power when possible. This may 15 sacrifice some performance due to increased latency 16 when coming out of lower power states. 17 18max_performance Generally, this means no power management. Tell 19 the controller to have performance be a priority 20 over power management. 21 22medium_power Tell the controller to enter a lower power state 23 when possible, but do not enter the lowest power 24 state, thus improving latency over min_power setting. 25===================== ===================================================== 26