[PATCH 0/3][SRU][OEM-5.13][I][U] Improve the Corp ME + S0ix support on e1000e

[You-Sheng Yang]

BugLink: https://bugs.launchpad.net/bugs/1937252

[Impact]

These improves power consumption on some e1000e platforms.

[Fix]

3 fixes in thread https://www.spinics.net/lists/netdev/msg755279.html
(now in netdev/net-next.git).

[Test Case]

These fixes solves two issues that the first one is the power
consumption would be lower to 1.651W from 2.032W when device enters
sleep state. The second is I219 may now enter ultra lower power mode
after resumed from s2idle.

[Where problems could occur]

While these fixes are still not in mainline but net-next, expecting some
more stability fix when necessary.

Sasha Neftin (3):
  e1000e: Add handshake with the CSME to support S0ix
  e1000e: Add polling mechanism to indicate CSME DPG exit
  e1000e: Additional PHY power saving in S0ix

 drivers/net/ethernet/intel/e1000e/ich8lan.h |   3 +
 drivers/net/ethernet/intel/e1000e/netdev.c  | 358 +++++++++++---------
 drivers/net/ethernet/intel/e1000e/regs.h    |   1 +
 3 files changed, 208 insertions(+), 154 deletions(-)

-- 
2.32.0