Re: Problems with mwifiex_pcie firmware activation

[Stanislaw Gruszka <sgruszka@redhat.com>]

On Thu, Aug 25, 2016 at 05:06:26PM +0200, Stanislaw Gruszka wrote:
> On Fri, Aug 12, 2016 at 10:13:43AM +0200, Stanislaw Gruszka wrote:
> > On Fri, Aug 12, 2016 at 07:17:38AM +0000, Amitkumar Karwar wrote:
> > > The problem looks strange. The patch just splits mwifiex_check_fw_status() and increases poll count. It should not have any side-effects.
> > > Our code used to check winner status before this patch also.
> > 
> > Ok, I misread the patch. Anyway checking "winner status" seems
> > does not work well on some condition and prevent loading firmware
> > into device.
> 
> I debug this a bit more on latest wireless-testing-next tree + 3 patches
> I just posted and debug_mask=0x700000ff.
> 
> On broken system, we do not download FW to device when system is
> rebooted, due to PCI-E is not the winner. However if system is
> powered OFF and then powered ON, we do FW downloading. Hence
> download the new FW into device does not make it work as was
> my theory.
> 
> In attachments are full dmesgs of good/bad and reboot/power-off-on
> cases.
> 
> The difference is that on broken system FW (or HW) do not create
> new USB Bluetooth device (1286:2046) and do not report
> FIRMWARE_READY_PCIE. Additionally on reboot case there are errors
> from USB xhci.

It was discovered that not working device require pcie8897_uapsta.bin 
firmware from ubuntu package to work:
https://launchpad.net/~snappy-dev/+archive/ubuntu/snappy-devices/+sourcepub/5936055/+listing-archive-extra

Device initialize like this then:

[   15.374630] mwifiex_pcie 0000:02:00.0: info: FW download over, size 689624 bytes
[   16.101214] mwifiex_pcie 0000:02:00.0: WLAN FW is active
[   16.242825] mwifiex_pcie 0000:02:00.0: info: MWIFIEX VERSION: mwifiex 1.0 (15.150.13.p21) 
[   16.251231] mwifiex_pcie 0000:02:00.0: driver_version = mwifiex 1.0 (15.150.13.p21) 

I'm not sure where ubuntu get this 15.150.13.p21 version of firmware as
it seems it's not present nor in upstream linux-firmware repo not in
http://git.marvell.com/?p=mwifiex-firmware.git;a=summary

Anyway could you modify firmware to support this device or modify
driver to load 15.150.13.p21 if required and push this F/W image
upstream ?

Thanks
Stanislaw