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 <20240523064546.7017-1-jtornosm@redhat.com>
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From: Yongqin Liu <yongqin.liu@linaro.org>
Date: Sat, 25 May 2024 04:08:10 +0800
Message-ID: <CAMSo37UyC-JRfZjd83Vx2+W-K-WqxAN9sHJ88Jev67Fnwci_pg@mail.gmail.com>
Subject: Re: [PATCH] net: usb: ax88179_178a: fix link status when link is set
 to down/up
To: Jose Ignacio Tornos Martinez <jtornosm@redhat.com>
Cc: davem@davemloft.net, edumazet@google.com, inventor500@vivaldi.net, 
	kuba@kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, 
	netdev@vger.kernel.org, pabeni@redhat.com, stable@vger.kernel.org
Content-Type: text/plain; charset="UTF-8"

Hi, Jose

On Thu, 23 May 2024 at 14:45, Jose Ignacio Tornos Martinez
<jtornosm@redhat.com> wrote:
>
> Hello Yongqin,
>
> Again, not a lot of information from the logs, but perhaps you coud give me
> more information for your scenario.
>
> Could you try to execute the down interface operation, mac assignment and
> the up interface operation from command line?
> That works for me.
When I tried the down and up operations manually from the command line,
it worked.
But it only worked after I ran the down and up operations after the boot.
It fails to work by default after the boot for both the fresh deployment,
and for the later reboot

One thing I noticed is that the following message was printed twice
    "ax88179_178a 2-3:1.0 eth0: ax88179 - Link status is: 1"
after I ran the up operation,

Is that expected?

For details, please check the log here:
https://gist.github.com/liuyq/be8f5305d538067a344001f1d35f677b

> Maybe some synchronization issue is happening in your boot operation.
> Could you provide more information about how/when you are doing the
> commented operations to try to reproduce?

The scripts are simple, here are the two scripts for Android build:
    https://android.googlesource.com/device/linaro/dragonboard/+/refs/heads/main/shared/utils/ethaddr/ethaddr.rc
    https://android.googlesource.com/device/linaro/dragonboard/+/refs/heads/main/shared/utils/ethaddr/set_ethaddr.sh

Is the one to run the down/change mac/up operations script.

Not sure why the up in the script does not work, but works when run manually.

--
Best Regards,
Yongqin Liu
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