Re: brcmfmac: brcmf_p2p_create_p2pdev: timeout occurred

[Arend van Spriel <arend@broadcom.com>]

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. 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?

Regards,
Arend

> Best regards
> Jörg Krause