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Re: brcmfmac: brcmf_p2p_create_p2pdev: timeout occurred

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On Mo, 2015-06-08 at 18:46 +0200, Arend van Spriel wrote:
> On 06/08/15 15:48, Jörg Krause wrote:
> > Hi Arend,
> > 
> > On Mo, 2015-06-08 at 14:41 +0200, Arend van Spriel wrote:
> > > On 06/08/15 14:35, Jörg Krause wrote:
> > > > Hi,
> > > > 
> > > > I've trouble creating the p2p interface on a BCM43362 wifi 
> > > > device
> > > > running Linux kernel 4.0.4:
> > > > 
> > > >       # dmesg | grep brcmfmac
> > > >       [    7.010870] brcmfmac: brcmf_c_preinit_dcmds: Firmware
> > > > version =
> > > >       wl0: Apr 22 2013 14:50:00 version 5.90.195.89.6 FWID 01
> > > > -b30a427d
> > > >       [    7.158905] brcmfmac: brcmf_cfg80211_reg_notifier: not 
> > > > a
> > > > ISO3166
> > > >       code
> > > >       [   11.007164] brcmfmac: brcmf_p2p_create_p2pdev: timeout
> > > > occurred
> > > > 
> > > > Trying to add the p2p interface manually:
> > > > 
> > > >       # iw phy0 interface add p2p0 type __p2pdev
> > > >       [  372.042704] brcmfmac: brcmf_link_down: WLC_DISASSOC 
> > > > failed
> > > > (-52)
> > > >       [  373.637263] brcmfmac: brcmf_p2p_create_p2pdev: timeout
> > > > occurred
> > > >       [  373.679377] brcmfmac: brcmf_cfg80211_del_key: invalid 
> > > > key
> > > > index (4)
> > > >       [  373.685733] brcmfmac: brcmf_cfg80211_del_key: invalid 
> > > > key
> > > > index (5)
> > > > 
> > > > Any idea?
> > > 
> > > Wondering whether it is similar to what Rafal reported. Can you 
> > > do a
> > > hexdump, ie. hexdump -C brcmfmac43362-sdio.bin | tail -30
> > 
> > I managed to set up the p2p interface by recompiling the kernel 
> > with
> > CONFIG_BRCMDBG and loading the brcmfmac module with p2pon=1.
> > 
> > I had a discussion some month ago with Hante Meulemann about 
> > setting up
> > the p2p interface. This is one of his replies:
> > 
> >      "For what I can see from the log is that we don’t get the 
> > event from
> >      the FW indicating that the p2p interface was created. This 
> > probably
> >      means that there is a bug in this FW for this device. I need 
> > to discuss
> >      this to see how much priority we can give this. The best 
> > option for you
> >      for the moment is to use the legacy method with the 'p2pon=1' 
> > command."
> 
> Thanks for digging your email archive as we clearly forgot about this 
> 
> entirely.

Me too :-)

> The timeout in your log indeed indicates it is missing a 
> notification from firmware. I assume your primary interface is in 
> managed mode when trying to create the p2p_dev interface. Is that 
> correct?

Correct.

Best regards
Jörg Krause
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