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[PATCH net-next v3 2/2] e1000e: fix PTP on e1000_pch_lpt variants

Started byJarod Wilson <jarod@redhat.com>
First post2016-07-26 20:30 +0200
Last post2016-08-04 21:40 +0200
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  [PATCH net-next v3 2/2] e1000e: fix PTP on e1000_pch_lpt variants Jarod Wilson <jarod@redhat.com> - 2016-07-26 20:30 +0200
    RE: [Intel-wired-lan] [PATCH net-next v3 2/2] e1000e: fix PTP on  e1000_pch_lpt variants "Brown, Aaron F" <aaron.f.brown@intel.com> - 2016-08-04 21:40 +0200

#1450765 — [PATCH net-next v3 2/2] e1000e: fix PTP on e1000_pch_lpt variants

FromJarod Wilson <jarod@redhat.com>
Date2016-07-26 20:30 +0200
Subject[PATCH net-next v3 2/2] e1000e: fix PTP on e1000_pch_lpt variants
Message-ID<rZfh8-5uR-21@gated-at.bofh.it>
I've got reports that the Intel I-218V NIC in Intel NUC5i5RYH systems used
as a PTP slave experiences random ~10 hour clock jumps, which are resolved
if the same workaround for the 82574 and 82583 is employed, so set the
appropriate flag2 in e1000_pch_lpt_info too.

Reported-by: Rupesh Patel <rupatel@redhat.com>
CC: Jesse Brandeburg <jesse.brandeburg@intel.com>
CC: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
CC: intel-wired-lan@lists.osuosl.org
CC: netdev@vger.kernel.org
Signed-off-by: Jarod Wilson <jarod@redhat.com>
---
 drivers/net/ethernet/intel/e1000e/ich8lan.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.c b/drivers/net/ethernet/intel/e1000e/ich8lan.c
index 3e11322..f3aaca7 100644
--- a/drivers/net/ethernet/intel/e1000e/ich8lan.c
+++ b/drivers/net/ethernet/intel/e1000e/ich8lan.c
@@ -5885,7 +5885,8 @@ const struct e1000_info e1000_pch_lpt_info = {
 				  | FLAG_HAS_JUMBO_FRAMES
 				  | FLAG_APME_IN_WUC,
 	.flags2			= FLAG2_HAS_PHY_STATS
-				  | FLAG2_HAS_EEE,
+				  | FLAG2_HAS_EEE
+				  | FLAG2_CHECK_SYSTIM_OVERFLOW,
 	.pba			= 26,
 	.max_hw_frame_size	= 9022,
 	.get_variants		= e1000_get_variants_ich8lan,
-- 
1.8.3.1

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#1456679 — RE: [Intel-wired-lan] [PATCH net-next v3 2/2] e1000e: fix PTP on e1000_pch_lpt variants

From"Brown, Aaron F" <aaron.f.brown@intel.com>
Date2016-08-04 21:40 +0200
SubjectRE: [Intel-wired-lan] [PATCH net-next v3 2/2] e1000e: fix PTP on e1000_pch_lpt variants
Message-ID<s2wEN-5rB-17@gated-at.bofh.it>
In reply to#1450765
> From: Intel-wired-lan [mailto:intel-wired-lan-bounces@lists.osuosl.org] On
> Behalf Of Jarod Wilson
> Sent: Tuesday, July 26, 2016 11:26 AM
> To: linux-kernel@vger.kernel.org
> Cc: netdev@vger.kernel.org; intel-wired-lan@lists.osuosl.org
> Subject: [Intel-wired-lan] [PATCH net-next v3 2/2] e1000e: fix PTP on
> e1000_pch_lpt variants
> 
> I've got reports that the Intel I-218V NIC in Intel NUC5i5RYH systems used
> as a PTP slave experiences random ~10 hour clock jumps, which are resolved
> if the same workaround for the 82574 and 82583 is employed, so set the
> appropriate flag2 in e1000_pch_lpt_info too.
> 
> Reported-by: Rupesh Patel <rupatel@redhat.com>
> CC: Jesse Brandeburg <jesse.brandeburg@intel.com>
> CC: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
> CC: intel-wired-lan@lists.osuosl.org
> CC: netdev@vger.kernel.org
> Signed-off-by: Jarod Wilson <jarod@redhat.com>
> ---
>  drivers/net/ethernet/intel/e1000e/ich8lan.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)

Tested-by: Aaron Brown <aaron.f.brown@intel.com>

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