[PATCH 0/1][SRU][H/OEM-5.13/OEM-5.14/I/U] UBUNTU: SAUCE: Fix invalid MAC address after hotplug tbt dock

[Aaron Ma]

Sorry for missing Impish tag.
Please apply for Impish too.
LP bug tag updated with subject.

Please let me know if you like a v2.

Thanks,
Aaron

On 9/13/21 10:16, Aaron Ma wrote:
> 
> 
> On 9/12/21 22:56, Timo Aaltonen wrote:
>> On 8.9.2021 11.49, Aaron Ma wrote:
>>> BugLink: https://bugs.launchpad.net/bugs/1942999
>>>
>>> SRU justification:
>>>
>>> [Impact]
>>> igc driver can not connect to network after re-plugin thunderbolt dock
>>> when
>>> MAC passthrough enabled in BIOS.
>>>
>>> [Fix]
>>> Wait for the MAC copy of BIOS when enabled MAC passthrough.
>>> Intel engineer wants a different solution and promise to discuss with
>>> firmware engineer.
>>> Due to the schedule, made this as a short term solution to fix the
>>> issue, and wait for the other
>>> fix from Intel.
>>>
>>> [Test]
>>> Verified on hardware, after hotplug the thunderbolt cable,
>>> Ethernet works fine.
>>>
>>> [Where problems could occur]
>>> It may break the igc driver.
>>>
>>> Aaron Ma (1):
>>>    UBUNTU: SAUCE: igc: wait for the MAC copy when enabled MAC passthrough
>>>
>>>   drivers/net/ethernet/intel/igc/igc_main.c | 3 +++
>>>   1 file changed, 3 insertions(+)
>>>
>>
>> Should this be for impish (5.13) too?
>>
> 
> Yes.
> 
> Aaron
>