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

[Tim Gardner]

Acked-by: Tim Gardner <tim.gardner at canonical.com>

These patches aren't "UBUNTU: SAUCE:", which can be fixed when they are 
applied. They are also already in linux-next, so the provenance is well 
known.

rtg

On 8/18/21 1:10 AM, You-Sheng Yang wrote:
> 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(-)
> 

-- 
-----------
Tim Gardner
Canonical, Inc