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 16:16, Timo Aaltonen <tjaalton at ubuntu.com> wrote:

> On 11.7.2019 10.47, Kai-Heng Feng wrote:
>> 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.
>
> So it just took over 2,5y to land upstream? That's impressive :)

Ah, you were to ask why these patches landed to dpdk but not to mainline  
Linux.
Actually these two patches are included in their out-of-tree driver.

To your original question: I don’t know :)

At least it will be in mainline.

Kai-Heng.

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