cmt: APPLIED(B, D): [SRU] [B/D/Unstable/OEM-B/OEM-OSP1-B] [PATCH 0/2] Fix RX CRC errors on I219 v6

Khaled Elmously khalid.elmously at canonical.com
Tue Jul 23 06:19:54 UTC 2019


Also, the patch titles were updated to include "UBUNTU: SAUCE: " 


On 2019-07-23 02:15:16 , Khaled Elmously wrote:
> On 2019-07-11 15:16:44 , Kai-Heng Feng wrote:
> > BugLink: https://bugs.launchpad.net/bugs/1836152
> > 
> > [Impact]
> > RX speed on Intel ethernet I219 v6 is extremely slow due to multiple RX
> > CRC errors.
> > 
> > [Fix]
> > Disable e1000e K1 feature to make I219 and PCH operate at higher speed
> > to avoid the issue.
> > 
> > [Test]
> > Before applying the patch, the RX is slower than 150Kbps. After applying
> > the fix the RX speed can achive gigabits.
> > 
> > [Regression Potential]
> > Low. This only applies to recent I219 generations.
> > I've also test several other systems with e1000e and I don't see any
> > regression.
> > 
> > Kai-Heng Feng (2):
> >   e1000e: add workaround for possible stalled packet
> >   e1000e: disable force K1-off feature
> > 
> >  drivers/net/ethernet/intel/e1000e/hw.h      |  1 +
> >  drivers/net/ethernet/intel/e1000e/ich8lan.c | 13 +++++++++++++
> >  drivers/net/ethernet/intel/e1000e/ich8lan.h |  2 +-
> >  3 files changed, 15 insertions(+), 1 deletion(-)
> > 
> > -- 
> > 2.17.1
> > 
> > 
> > -- 
> > kernel-team mailing list
> > kernel-team at lists.ubuntu.com
> > https://lists.ubuntu.com/mailman/listinfo/kernel-team



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