Re: FSL P5020/P5040: DPAA Ethernet issue with the latest Git kernel

Re: FSL P5020/P5040: DPAA Ethernet issue with the latest Git kernel

[Christian Zigotzky]

On 25 June 2020 at 12:22 pm, Alexander Gordeev wrote:
> On Thu, Jun 25, 2020 at 01:01:52AM +0200, Christian Zigotzky wrote:
> [...]
>> I compiled a test kernel with the option "CONFIG_TEST_BITMAP=y"
>> yesterday. After that Skateman and I booted it and looked for the
>> bitmap tests with "dmesg | grep -i bitmap".
>>
>> Results:
>>
>> FSL P5020:
>>
>> [    0.297756] test_bitmap: loaded.
>> [    0.298113] test_bitmap: parselist: 14: input is '0-2047:128/256'
>> OK, Time: 562
>> [    0.298142] test_bitmap: parselist_user: 14: input is
>> '0-2047:128/256' OK, Time: 761
>> [    0.301553] test_bitmap: all 1663 tests passed
>>
>> FSL P5040:
>>
>> [    0.296563] test_bitmap: loaded.
>> [    0.296894] test_bitmap: parselist: 14: input is '0-2047:128/256'
>> OK, Time: 540
>> [    0.296920] test_bitmap: parselist_user: 14: input is
>> '0-2047:128/256' OK, Time: 680
>> [    0.299994] test_bitmap: all 1663 tests passed
> Thanks for the test! So it works as expected.
>
> I would suggest to compare what is going on on the device probing
> with and without the bisected commit.
>
> There seems to be MAC and PHY mode initialization issue that might
> resulted from the bitmap format change.
>
> I put Madalin and Sascha on CC as they have done some works on
> this part recently.
>
> Thanks!
>

Hi All,

The issue still exists [1] so we still need the dpaa patch [2]. Could 
you please check the problematic commit [3]?

Thanks,
Christian

[1] https://forum.hyperion-entertainment.com/viewtopic.php?p=50885#p50885
[2] https://forum.hyperion-entertainment.com/viewtopic.php?p=50982#p50982
[3] https://forum.hyperion-entertainment.com/viewtopic.php?p=50980#p50980

Re: FSL P5020/P5040: DPAA Ethernet issue with the latest Git kernel

[Christian Zigotzky]

On 08 July 2020 at 08:03 am, Madalin Bucur (OSS) wrote:
>> From: Christian Zigotzky <chzigotzky@xenosoft.de>
>> Sent: Tuesday, July 7, 2020 9:26 PM
>> To: Madalin Bucur (OSS) <madalin.bucur@oss.nxp.com>
>> Cc: mad skateman <madskateman@gmail.com>; Camelia Alexandra Groza <camelia.groza@nxp.com>;
>> linuxppc-dev@ozlabs.org; netdev@vger.kernel.org; R.T.Dickinson <rtd2@xtra.co.nz>;
>> Darren Stevens <darren@stevens-zone.net>
>> Subject: Re: FSL P5020/P5040: DPAA Ethernet issue with the latest Git kernel
>>
>>
>> On 7. Jul 2020, at 17:53, Madalin Bucur (OSS) <mailto:madalin.bucur@oss.nxp.com> wrote:
>> Was DPAA functional before commit A?
>> How about after commit A and before commit B?
>> The DPAA Ethernet works from  the kernel 5.6-rc4 [1] till the Git kernel from the
>> 11 of June [2]. It doesn’t work since the commit “fix bitmap_parse” [3].
>> [1] https://forum.hyperion-entertainment.com/viewtopic.php?p=49936#p49936
>> [2] https://forum.hyperion-entertainment.com/viewtopic.php?p=50848#p50848
>> [3] https://forum.hyperion-entertainment.com/viewtopic.php?p=50980#p50980
> Hi,
>
> can you please try to disable the network manager (see [1]), then boot with
> the latest kernel, that does not work, and setup the interfaces manually?
>
> Madalin
>
> [1] https://help.ubuntu.com/community/NetworkManager#Stopping_and_Disabling_NetworkManager
>
@Skateman
I will compile the latest Git kernel after the 17th. Could you please 
test it without the NetworkManager?

Thanks