Re: ath10k: firmware crash after setting promiscous mode

From: Ben Greear <greearb@candelatech.com>
To: Michal Kazior <michal.kazior@tieto.com>
Cc: "\"Jose Núñez-Martínez (CTTC)\"" <jose.nunez@cttc.cat>,
	"ath10k@lists.infradead.org" <ath10k@lists.infradead.org>
Subject: Re: ath10k: firmware crash after setting promiscous mode
Date: Thu, 02 Jul 2015 06:57:00 -0700	[thread overview]
Message-ID: <5595432C.9030202@candelatech.com> (raw)
In-Reply-To: <CA+BoTQnfaYsXKc8dpiR4r9pd=K88P8mTNB1pJetQgN-n2HkhYw@mail.gmail.com>

On 07/02/2015 05:10 AM, Michal Kazior wrote:
> On 2 July 2015 at 13:18, "Jose Núñez-Martínez (CTTC)"
> <jose.nunez@cttc.cat> wrote:
>> Hi all,
>> I'm trying to use an ath10k in IBSS mode with 2 wireless cards based on
>> qca988x . I'd like to be able to put the wireless cards in promiscuous mode
>> (ifconfig wlanX promisc). When I put the wireless cards in promiscuous mode,
>> the firmware crashes. Has anyone tried this?
>>
>> Kernel is 4.1 and  firmware is 999.999.0.636. Please find below the ath10k
>> crash info:
> 
> That's weird. I believe promisc flag is no longer propagated by
> mac80211 to its drivers (e.g. ath10k).
> 
> 
>> [14940.115607] ath10k_pci 0000:0c:00.0: firmware crashed! (uuid
>> 1f927b1a-d148-45ce-83f8-df3ba23fb473)
>> [14940.115626] ath10k_pci 0000:0c:00.0: qca988x hw2.0 (0x4100016c,
>> 0x043202ff) fw 999.999.0.636 api 4 htt 2.1 wmi 1 cal otp max_sta 16
>> [14940.115632] ath10k_pci 0000:0c:00.0: debug 0 debugfs 1 tracing 1 dfs 0
>> testmode 0
>> [14940.117633] ath10k_pci 0000:0c:00.0: firmware register dump:
>> [14940.117640] ath10k_pci 0000:0c:00.0: [00]: 0x4100016C 0x00000000
>> 0x009C4521 0x00000000
>> [14940.117646] ath10k_pci 0000:0c:00.0: [04]: 0x009C4521 0x00060330
>> 0x00000019 0x00955A00
> [...]
> 
> If you look through the list you'll find similar reports with the same
> register dump values.
> 
> Firmware 999.999.0.636 has broken monitor vdev support in firmware and
> often crashes when one tries to use it (which is implied by promisc
> mode in older kernels or a running monitor vif).
> 
> You might be interested in using CT firmware branch[1]. Ben has added
> IBSS support recently and since it's 10.1 based it has a working
> monitor vdev support.
> 
> [1]: http://www.candelatech.com/ath10k.php

Make sure you get the beta build for best IBSS support:

http://www.candelatech.com/downloads/ath10k-fw-beta/

Thanks,
Ben

> 
> 
> Michał
> 
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> ath10k@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/ath10k
> 

-- 
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com

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