CMNT Re: [SRU] [B/D/Unstable/OEM-B/OEM-OSP1-B] [PATCH 0/2] Fix RX CRC errors on I219 v6

[Kai-Heng Feng]

at 15:35, Timo Aaltonen <tjaalton at ubuntu.com> wrote:

> On 11.7.2019 10.16, 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.
>
> Hi, any idea why these were never applied upstream?

Well, because it just landed to Intel ethernet tree, it will be applied to  
mainline eventually.

Kai-Heng

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