r8169: Reinstate ASPM Support

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On Intel platforms (Skylake and newer), ASPM support in r8169 is the
last missing puzzle to let CPU's Package C-State reaches PC8.  Without
ASPM support, the CPU cannot reach beyond PC3. PC8 can save additional
~3W in comparison with PC3 on a Coffee Lake platform, Dell G3 3779.

This is based on the work from Chunhao Lin <hau@realtek.com>.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Kai-Heng Feng 2018-06-21 16:30:39 +08:00 • committed by David S. Miller

parent 671646c151

commit a99790bf5c

1 changed files with 27 additions and 12 deletions

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drivers/net/ethernet/realtek/r8169.c

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