]> git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blame - Documentation/scsi/link_power_management_policy.txt
UBUNTU: Ubuntu-4.15.0-96.97
[mirror_ubuntu-bionic-kernel.git] / Documentation / scsi / link_power_management_policy.txt
CommitLineData
ca77329f
KCA
1This parameter allows the user to set the link (interface) power management.
2There are 3 possible options:
3
4Value Effect
5----------------------------------------------------------------------------
6min_power Tell the controller to try to make the link use the
7 least possible power when possible. This may
8 sacrifice some performance due to increased latency
9 when coming out of lower power states.
10
11max_performance Generally, this means no power management. Tell
12 the controller to have performance be a priority
13 over power management.
14
15medium_power Tell the controller to enter a lower power state
16 when possible, but do not enter the lowest power
17 state, thus improving latency over min_power setting.
18
19