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authorPaul Mackerras <paulus@samba.org>2007-11-02 14:03:14 +1100
committerPaul Mackerras <paulus@samba.org>2007-11-02 14:03:14 +1100
commit97a4649d6ffce4a5d7f5ce018d87a6cefcb4ad03 (patch)
tree8f7f591754baa934a842357e75e773a525bfb147 /Documentation/scsi/link_power_management_policy.txt
parent[POWERPC] powerpc: Fix demotion of segments to 4K pages (diff)
parentMerge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 (diff)
downloadlinux-dev-97a4649d6ffce4a5d7f5ce018d87a6cefcb4ad03.tar.xz
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Merge branch 'linux-2.6' into merge
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+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.
+
+