APPLIED(B,D)/cmt: [SRU] [B/D/Unstable/OEM-B/OEM-OSP1-B] [PATCH 0/1] Intel ethernet I219 may wrongly detect connection speed as 10Mbps

[Khaled Elmously]

Prefixed "UBUNTU: SAUCE: " to the commit title.



On 2019-07-11 17:43:15 , Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/1836177
> 
> [Impact]
> Intel I219 ethernet may wrongly detect 1Gbps network as 10Mbps after
> ethernet cable hotplugging.
> 
> [Fix]
> Use delayed work before deciding the network speed.
> This essentially workarounds unreliable reading on MII_BMSR register.
> 
> [Test]
> Before the patch the network operates at 10Mbps after cable gets
> plugged.
> With the fix, network always operates in 1Gbps.
> 
> [Regression Potential]
> Low. It changes the watchdog task from timer to delayed work, the logic
> is essentially the same.
> 
> Detlev Casanova (1):
>   e1000e: Make watchdog use delayed work
> 
>  drivers/net/ethernet/intel/e1000e/e1000.h  |  5 +-
>  drivers/net/ethernet/intel/e1000e/netdev.c | 54 ++++++++++++----------
>  2 files changed, 32 insertions(+), 27 deletions(-)
> 
> -- 
> 2.17.1
> 
> 
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