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Subject: Re: Firmware Crashed
To:     Ming Chen <Ming.Chen@watchguard.com>,
        Tom Psyborg <pozega.tomislav@gmail.com>
Cc:     linux-wireless <linux-wireless@vger.kernel.org>,
        Joe Qiao <Joe.Qiao@watchguard.com>
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From:   Ben Greear <greearb@candelatech.com>
Organization: Candela Technologies
Message-ID: <2e7adba4-7a4b-f306-b216-99b64d2f42ea@candelatech.com>
Date:   Mon, 23 Mar 2020 16:00:56 -0700
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On 3/23/20 3:53 PM, Ming Chen wrote:
>>> No, it will be very difficult for us to upgrade the kernel.
>>> This module(QCA9986 PCIe) is from the a third party company. They are
>>> using the QCA driver and it works well. We are trying to integrate
>>> this module to our own device(PPC-64 + Kernel 4.14.83). We don't want
>>> to upgrade the kernel, since it will be a huge challenge work for us.
>>>
>>>
>>> Thanks
>>> Ming Chen
>>>
>>>> -----Original Message-----
>>>> From: Tom Psyborg <pozega.tomislav@gmail.com>
>>>> Sent: Saturday, March 21, 2020 11:16 PM
>>>> To: Ming Chen <Ming.Chen@watchguard.com>
>>>> Cc: linux-wireless <linux-wireless@vger.kernel.org>
>>>> Subject: Re: Firmware Crashed
>>>>
>>>> can you try to boot it in another device and using some distro that
>>>> has 4.19 or later kernel without backports?
>>>
>>
>> My suggestion is to try it in x86_64 PC. Then you can just use live linux distro
>> with different kernel versions. If it does not work with any of these you may
>> have ran into a hw bug sample. If it does work then you don't need to update
>> your PPC64 kernel but find an architecture/device speific bug that prevents it
>> from loading.
> 
> [Ming Chen]
> Thanks for the suggestion. I don't have a PC with PCIe socket on my hand, but it's indeed worth to have a try. I will try to find a one.

In case you want to try the ath10k-ct firmware for your chip, you can send me the firmware crash output and maybe
I can understand why it is crashing.

http://www.candelatech.com/ath10k.php

Thanks,
Ben

-- 
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com