ath10k driver firmware crash when bring up qca 9984 wireless card

[KC]

Hi Ben

Thanks for your time. 

If I want to try ath10k-ct-driver, where I can get stable version?

There has information about pci-e layout.
The device has two PCI-e slots. one is the original pci-e slot of main board and the other one is the output of pci-e switch. 

case 1:one is the original pci-e slot of main board
case 2:one is the output from pci-e switch.

We can get QCA9884 pci-e information (VID and IID) form /sys/bus/pci/device in case 1 and case 2 

ath10k driver always work in case 1 and always get the firmware crash message in case 2. 

Does ath10k driver have any limits about pci-e layout?

Thanks,
KC

-----Original message-----
From:Ben Greear <greearb at candelatech.com>
To:KC <kc at mail2000.com.tw>
Cc:KC Chen <KC1120 at gmail.com>,ath10k <ath10k at lists.infradead.org>
Date:Sat, 28 Apr 2018 01:20:41
Subject:Re: ath10k driver firmware crash when bring up qca 9984 wireless car d

I think it might be something like a null-pointer exception, but those do not
create a clean backtrace.  If you wanted to use my ath10k-ct driver, it can sometimes
gather additional info for these types of crashes that lets me know more about it.

But, if your problem is with backporting a driver anyway, maybe that is not
so much help.

If you could move forward to at least the 4.9 kernel, then likely you will have
better luck with the 9984.

Thanks,
Ben

On 04/26/2018 11:12 PM, KC wrote:
> Hi Ben,
>
> Thank you for your time.
>
> I have been try ath10k-ct firmware and the attachments are the crash dump and pci info.
>
> If you require any further information, let me know.
>
> Thanks,
> KC
>
> -----Original message-----
> From:Ben Greear <greearb at candelatech.com>
> To:KC <kc at mail2000.com.tw>,ath10k <ath10k at lists.infradead.org>
> Cc:KC Chen <KC1120 at gmail.com>
> Date:Thu, 26 Apr 2018 23:03:09
> Subject:Re: ath10k driver firmware crash when bring up qca 9984 wireless car d
>
> On 04/26/2018 01:46 AM, KC wrote:
>> Hi
>>
>> I'm porting ath10k drivers for Linux 4.2.8.
>>
>> Try to bring up QCA9984 wireless PCI-e card.
>>
>> I have problem with running ath10k driver, firmware load then the kernel message will show the firmware crashed during boot.
>>
>> The attachment is the error log.
>>
>> I also tried firmware ver 10.4-3.2, 10.4-3.3 and 10.4-3.5.3 without success: same symptoms an same faults.
>>
>> I can provide more information (logs) to help to figure out: where the problem is?
>
> You can try my ath10k-ct firmware, send me crash dump if it crashes and I might can
> decode it and tell you why.
>
> http://www.candelatech.com/ath10k-10.4.php
>
> Thanks,
> Ben
>


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