[PATCH v3 0/7] Improve s0ix flows for systems i219LM

From: Mario Limonciello <mario.limonciello@dell.com>
To: Jeff Kirsher <jeffrey.t.kirsher@intel.com>,
	Tony Nguyen <anthony.l.nguyen@intel.com>,
	intel-wired-lan@lists.osuosl.org
Cc: linux-kernel@vger.kernel.org, Linux PM <linux-pm@vger.kernel.org>,
	Netdev <netdev@vger.kernel.org>,
	Alexander Duyck <alexander.duyck@gmail.com>,
	Jakub Kicinski <kuba@kernel.org>,
	Sasha Netfin <sasha.neftin@intel.com>,
	Aaron Brown <aaron.f.brown@intel.com>,
	Stefan Assmann <sassmann@redhat.com>,
	David Miller <davem@davemloft.net>,
	darcari@redhat.com, Yijun.Shen@dell.com, Perry.Yuan@dell.com,
	anthony.wong@canonical.com,
	Mario Limonciello <mario.limonciello@dell.com>
Subject: [PATCH v3 0/7] Improve s0ix flows for systems i219LM
Date: Fri,  4 Dec 2020 14:09:13 -0600	[thread overview]
Message-ID: <20201204200920.133780-1-mario.limonciello@dell.com> (raw)

commit e086ba2fccda ("e1000e: disable s0ix entry and exit flows for ME systems")
disabled s0ix flows for systems that have various incarnations of the
i219-LM ethernet controller.  This was done because of some regressions
caused by an earlier
commit 632fbd5eb5b0e ("e1000e: fix S0ix flows for cable connected case")
with i219-LM controller.

Performing suspend to idle with these ethernet controllers requires a properly
configured system.  To make enabling such systems easier, this patch
series allows determining if enabled and turning on using ethtool.

The flows have also been confirmed to be configured correctly on Dell's Latitude
and Precision CML systems containing the i219-LM controller, when the kernel also
contains the fix for s0i3.2 entry previously submitted here and now part of this
series.
https://marc.info/?l=linux-netdev&m=160677194809564&w=2

Patches 4 through 7 will turn the behavior on by default for some of Dell's
CML and TGL systems.

Changes from v2 to v3:
 - Correct some grammar and spelling issues caught by Bjorn H.
   * s/s0ix/S0ix/ in all commit messages
   * Fix a typo in commit message
   * Fix capitalization of proper nouns
 - Add more pre-release systems that pass
 - Re-order the series to add systems only at the end of the series
 - Add Fixes tag to a patch in series.

Changes from v1 to v2:
 - Directly incorporate Vitaly's dependency patch in the series
 - Split out s0ix code into it's own file
 - Adjust from DMI matching to PCI subsystem vendor ID/device matching
 - Remove module parameter and sysfs, use ethtool flag instead.
 - Export s0ix flag to ethtool private flags
 - Include more people and lists directly in this submission chain.

Mario Limonciello (6):
  e1000e: Move all S0ix related code into its own source file
  e1000e: Export S0ix flags to ethtool
  e1000e: Add Dell's Comet Lake systems into S0ix heuristics
  e1000e: Add more Dell CML systems into S0ix heuristics
  e1000e: Add Dell TGL desktop systems into S0ix heuristics
  e1000e: Add another Dell TGL notebook system into S0ix heuristics

Vitaly Lifshits (1):
  e1000e: fix S0ix flow to allow S0i3.2 subset entry

 drivers/net/ethernet/intel/e1000e/Makefile  |   2 +-
 drivers/net/ethernet/intel/e1000e/e1000.h   |   4 +
 drivers/net/ethernet/intel/e1000e/ethtool.c |  40 +++
 drivers/net/ethernet/intel/e1000e/netdev.c  | 272 +----------------
 drivers/net/ethernet/intel/e1000e/s0ix.c    | 311 ++++++++++++++++++++
 5 files changed, 361 insertions(+), 268 deletions(-)
 create mode 100644 drivers/net/ethernet/intel/e1000e/s0ix.c

--
2.25.1