Hi Stanislaw, > From: Stanislaw Gruszka [mailto:sgrus...@redhat.com] > Sent: Monday, November 14, 2016 3:46 PM > To: Amitkumar Karwar > Cc: Nishant Sarmukadam; linux-wireless@vger.kernel.org > Subject: Re: Problems with mwifiex_pcie firmware activation > > 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:
What's the difference between working and non-working device? > 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 ? > Last released firmware is 15.68.7.p77 http://git.marvell.com/?p=mwifiex-firmware.git;a=commit;h=05e2f3a4acf4174ec507a3464a374ecb1b4ec011 Could you try with it? If it doesn't work, we need to investigate what is missing in this compared to 15.150.13.p21 and create new 15.68.7.pXX. Regards, Amitkumar
