Comment 6 for bug 1677297

Revision history for this message
Timur Tabi (timur-tabi) wrote : RE: Zesty use qcom_emac instead of msm_emac.

It's not unrelated. That is the actusl phy on the SDP.
________________________________________
From: Manoj Iyer [<email address hidden>]
Sent: Wednesday, March 29, 2017 10:11 PM
To: Timur Tabi
Cc: Manoj Iyer; Andrew Cloke; David Douglas; <email address hidden>
Subject: Re: Zesty use qcom_emac instead of msm_emac.

That is hard to SRU, we don't want to be adding unrelated modules to DI.

With at803x loaded
==================
ubuntu@ubuntu:~$ uname -a
Linux ubuntu 4.10.0-10-generic #13~ubunturc2+build.1-Ubuntu SMP Tue Feb 28
23:33:09 UTC 2017 aarch64 aarch64 aarch64 GNU/Linux
ubuntu@ubuntu:~$
ubuntu@ubuntu:~$ lsmod | grep at803x
at803x
ubuntu@ubuntu:~$ lsmod | grep qcom
qcom_emac 40960 0
ubuntu@ubuntu:~$

eth0 Link encap:Ethernet HWaddr 8c:fd:f0:06:90:cd
           inet addr:10.228.66.102 Bcast:10.228.66.255 Mask:255.255.255.0

So clearly as a side effect of loading at803x qcom_emac is able to get an
IP address. But I am afraid this is not something we can justify as an
SRU.

On Wed, 29 Mar 2017, Timur Tabi wrote:

> Assuming that you did back-port enough, then you should try loading
> at803x.ko first. Technically, there is an erratum with that PHY that the
> driver resolves, although I've never seen it make a difference until today.
>
> On 03/29/2017 04:50 PM, Manoj Iyer wrote:
>> Timur,
>>
>> Based on https://bugs.launchpad.net/bandera/ubuntu-17.04/+bug/1657261 yes
>> this was backported from 4.11 to 4.10 and commited to zesty and to xenial.
>>
>> On Wed, 29 Mar 2017, Timur Tabi wrote:
>>
>>> Did you back-port driver from 4.11?
>>>
>>> On 03/29/2017 03:55 PM, Manoj Iyer wrote:
>>>>
>>>> I have a public bug to track the qcom_emac replacement for msm_emac. This
>>>> is currently blocked because qcom_emac that is in Zesty is unable to get
>>>> DHCP leases. Needs a fix from qti to the driver before we can sru the
>>>> change. It is my understanding that once we sru the required patches we
>>>> can request for a DI respin in zesty to pick up the updated kernel.
>>>>
>>>> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1677297
>>>>
>>>> --
>>>> ============================
>>>> Manoj Iyer
>>>> Ubuntu/Canonical
>>>> ARM Servers - Cloud
>>>> ============================
>>>
>>>
>>
>> --
>> ============================
>> Manoj Iyer
>> Ubuntu/Canonical
>> ARM Servers - Cloud
>> ============================
>
>

--
============================
Manoj Iyer
Ubuntu/Canonical
ARM Servers - Cloud
============================