linux/drivers/net/ethernet/intel/e1000e
Dima Ruinskiy c93a6f62cb e1000e: Fix S0ix residency on corporate systems
On vPro systems, the configuration of the I219-LM to achieve power
gating and S0ix residency is split between the driver and the CSME FW.
It was discovered that in some scenarios, where the network cable is
connected and then disconnected, S0ix residency is not always reached.
This was root-caused to a subset of I219-LM register writes that are not
performed by the CSME FW. Therefore, the driver should perform these
register writes on corporate setups, regardless of the CSME FW state.

This was discovered on Meteor Lake systems; however it is likely to
appear on other platforms as well.

Fixes: cc23f4f0b6 ("e1000e: Add support for Meteor Lake")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=218589
Signed-off-by: Dima Ruinskiy <dima.ruinskiy@intel.com>
Signed-off-by: Vitaly Lifshits <vitaly.lifshits@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20240628201754.2744221-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-01 20:05:26 -07:00
..
80003es2lan.c intel: legacy: field get conversion 2023-12-18 11:20:43 -08:00
80003es2lan.h
82571.c intel: legacy: field get conversion 2023-12-18 11:20:43 -08:00
82571.h
Makefile
defines.h net: e1000e & ixgbe: Remove PCI_HEADER_TYPE_MFD duplicates 2024-05-08 09:26:46 -07:00
e1000.h e1000e: correct maximum frequency adjustment values 2024-01-29 10:01:08 -08:00
e1000e_trace.h
ethtool.c e1000e: Remove redundant runtime resume for ethtool_ops 2024-04-08 13:25:39 -07:00
hw.h e1000e: Workaround for sporadic MDI error on Meteor Lake systems 2024-03-27 11:44:20 -07:00
ich8lan.c e1000e: move force SMBUS near the end of enable_ulp function 2024-05-29 18:56:30 -07:00
ich8lan.h
mac.c intel: legacy: field get conversion 2023-12-18 11:20:43 -08:00
mac.h net: e1000e: Remove unused declarations 2023-08-15 19:05:17 -07:00
manage.c
manage.h
netdev.c e1000e: Fix S0ix residency on corporate systems 2024-07-01 20:05:26 -07:00
nvm.c
nvm.h
param.c
phy.c e1000e: change usleep_range to udelay in PHY mdic access 2024-04-30 18:40:59 -07:00
phy.h e1000e: Workaround for sporadic MDI error on Meteor Lake systems 2024-03-27 11:44:20 -07:00
ptp.c e1000e: correct maximum frequency adjustment values 2024-01-29 10:01:08 -08:00
regs.h