diff mbox series

[RESEND] e1000e: fix S0ix flow to allow S0i3.2 subset entry

Message ID 20201208185632.151052-1-mario.limonciello@dell.com (mailing list archive)
State Accepted
Delegated to: Netdev Maintainers
Headers show
Series [RESEND] e1000e: fix S0ix flow to allow S0i3.2 subset entry | expand

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netdev/fixes_present success Link
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netdev/tree_selection success Guessed tree name to be net-next
netdev/subject_prefix warning Target tree name not specified in the subject
netdev/source_inline success Was 0 now: 0
netdev/verify_signedoff success Link
netdev/module_param success Was 0 now: 0
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/verify_fixes success Link
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 28 lines checked
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/header_inline success Link
netdev/stable success Stable not CCed

Commit Message

Limonciello, Mario Dec. 8, 2020, 6:56 p.m. UTC 
From: Vitaly Lifshits <vitaly.lifshits@intel.com>

Changed a configuration in the flows to align with
architecture requirements to achieve S0i3.2 substate.

This helps both i219V and i219LM configurations.

Also fixed a typo in the previous commit 632fbd5eb5b0
("e1000e: fix S0ix flows for cable connected case").

Fixes: 632fbd5eb5b0 ("e1000e: fix S0ix flows for cable connected case").
Signed-off-by: Vitaly Lifshits <vitaly.lifshits@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Signed-off-by: Mario Limonciello <mario.limonciello@dell.com>
---
This patch was originally part of 
https://marc.info/?l=linux-netdev&m=160677194809564&w=2
which requested fixes. It was then resubmitted as part of:
https://patchwork.ozlabs.org/project/netdev/list/?series=218712
However there is discussion on the other patches of the series.
As it fixes existing hardware that is not blocked by ME check (i219V)
resubmit it separately to at least fix that hardware.

 drivers/net/ethernet/intel/e1000e/netdev.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

Comments

Jakub Kicinski Dec. 9, 2020, 11:43 p.m. UTC | #1 
On Tue,  8 Dec 2020 12:56:32 -0600 Mario Limonciello wrote:
> From: Vitaly Lifshits <vitaly.lifshits@intel.com>
> 
> Changed a configuration in the flows to align with
> architecture requirements to achieve S0i3.2 substate.
> 
> This helps both i219V and i219LM configurations.
> 
> Also fixed a typo in the previous commit 632fbd5eb5b0
> ("e1000e: fix S0ix flows for cable connected case").
> 
> Fixes: 632fbd5eb5b0 ("e1000e: fix S0ix flows for cable connected case").
> Signed-off-by: Vitaly Lifshits <vitaly.lifshits@intel.com>
> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
> Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
> Signed-off-by: Mario Limonciello <mario.limonciello@dell.com>

Applied, thank you!
diff mbox series

Patch

diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index 3ecd05b28fe6..6588f5d4a2be 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -6475,13 +6475,13 @@  static void e1000e_s0ix_entry_flow(struct e1000_adapter *adapter)
 
 	/* Ungate PGCB clock */
 	mac_data = er32(FEXTNVM9);
-	mac_data |= BIT(28);
+	mac_data &= ~BIT(28);
 	ew32(FEXTNVM9, mac_data);
 
 	/* Enable K1 off to enable mPHY Power Gating */
 	mac_data = er32(FEXTNVM6);
 	mac_data |= BIT(31);
-	ew32(FEXTNVM12, mac_data);
+	ew32(FEXTNVM6, mac_data);
 
 	/* Enable mPHY power gating for any link and speed */
 	mac_data = er32(FEXTNVM8);
@@ -6525,11 +6525,11 @@  static void e1000e_s0ix_exit_flow(struct e1000_adapter *adapter)
 	/* Disable K1 off */
 	mac_data = er32(FEXTNVM6);
 	mac_data &= ~BIT(31);
-	ew32(FEXTNVM12, mac_data);
+	ew32(FEXTNVM6, mac_data);
 
 	/* Disable Ungate PGCB clock */
 	mac_data = er32(FEXTNVM9);
-	mac_data &= ~BIT(28);
+	mac_data |= BIT(28);
 	ew32(FEXTNVM9, mac_data);
 
 	/* Cancel not waking from dynamic