ath10k fail to load firmware

Perry_Yuan at Perry_Yuan at
Fri Jul 29 00:45:12 PDT 2016

Dell - No Restrictions - Confidential

HI Stanislaw:
Now we have got the available firmware for DW1820 wireless card ,but we  found  one new problem .
I built   upstream  4.6.4  and 4.7  kernel  code  and install the kernel images , the wireless driver can work , which means I  can get  IP address and  ping  external network successfully .

But it cannot  work with  RHEL 7.3 test kernel   kernel-3.10.0-473.el7.x86_64.rpm . This kernel will  occur panic  frequently .
Even  system can get IP address from AP . but it cannot ping external  network .
So I would think the backport driver have some issue .
I have found some differences  with upstream 4.7 kernel code  where you  do backport   . I will  provide the kernel panic log later .

keep up the good work
Perry  Yuan
Dell | Client Software Group | Platform Sftwr Senior Engineer
office +86 21 22030689, mobile +86 18521512823
perry_yuan at
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-----Original Message-----
From: Stanislaw Gruszka [mailto:sgruszka at]
Sent: Tuesday, July 19, 2016 3:28 PM
To: Michal Kazior <michal.kazior at>
Cc: Kalle Valo <kvalo at>; ath10k at; Yuan, Perry <Perry_Yuan at>
Subject: Re: ath10k fail to load firmware

On Tue, Jul 19, 2016 at 09:18:01AM +0200, Michal Kazior wrote:
> On 19 July 2016 at 09:09, Stanislaw Gruszka <sgruszka at> wrote:
> > Perry from Dell has ath10k device, which do not work with current
> > linux-firmware. It's on RHEL kernel, however wirelss stack and
> > drivers are from 4.7-rc1 (I did not update to 4.7 final yet, since I
> > do not see ath10k fix, which could possibly help here). Partial
> > dmesg is in the attachment.
> hw.3 qca6174 chips tend to require very specific board data for proper
> calibration.
>   [ 3838.601884] ath10k_pci 0000:01:00.0: failed to fetch board data
> for
> bus=pci,vendor=168c,device=003e,subsystem-vendor=1028,subsystem-device
> =0310
> from ath10k/QCA6174/hw3.0/board-2.bin
>   [ 3838.601920] ath10k_pci 0000:01:00.0: board_file api 1 bmi_id N/A
> crc32 ed5f849a
> Your board-2.bin doesn't contain the matching board data and the
> driver then falls back to the older board API1 which is pretty much
> doomed to fail on qca6174 hw.3.
> @Kalle: Perhaps ath10k needs to fail early with an adequate message
> for qca6174 hw.3 if board API2 lookup fails (e.g. hw_params flag
> because this seems to be quite closely coupled with hardware itself).
> @Stanislaw: You either need to grab a more recent board-2.bin
> (,

@Perry, could you replace board-2.bin from above link on /lib/firmware/ath10k/QCA6174/hw3.0/ and check if that work ?

> ask Kalle & wait, or cook up your own (if you really need it working
> *now*) by getting Windows driver and dissecting it (the .inf file
> contains enough information for you to map board data also referred to
> as eeprom-something in the Windows blob).

I think we can wait till firmware will be updated upstream, however Dell would like to know if what we provide in new RHEL7 release will work on their hardware.


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