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Message-ID: <fcf1735d-909f-8b2d-cb0f-ca397047b8a8@infradead.org>
Date:   Wed, 26 Jan 2022 10:46:19 -0800
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Subject: Re: iwlwifi problems, maybe firmware related?
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To:     "Coelho, Luciano" <luciano.coelho@intel.com>,
        "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>,
        greearb <greearb@candelatech.com>
Cc:     "Ben Ami, Golan" <golan.ben.ami@intel.com>
References: <92b00b94-aff6-8108-06d1-932b77f9d218@infradead.org>
 <04761964-e3b3-b2f7-78a4-bbc3507ad676@candelatech.com>
 <0ee64c55-1326-addb-7c9c-c922373f78c0@infradead.org>
 <cb3e4991c19659ab73cc0d9c12e8b7dbba9d652d.camel@intel.com>
 <aa666e92-6c8b-5689-1a9a-6e61d68b096d@infradead.org>
 <dc56d6a7b2e0f2b76d6a584fb62fb235e691d9ff.camel@intel.com>
From:   Randy Dunlap <rdunlap@infradead.org>
In-Reply-To: <dc56d6a7b2e0f2b76d6a584fb62fb235e691d9ff.camel@intel.com>
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On 1/26/22 10:36, Coelho, Luciano wrote:
> On Wed, 2022-01-26 at 10:32 -0800, Randy Dunlap wrote:
>> Hi--
>>
>> On 1/25/22 23:12, Coelho, Luciano wrote:
>>> Hi,
>>>
>>> Adding Golan to the thread.
>>>
>>> On Tue, 2022-01-25 at 18:20 -0800, Randy Dunlap wrote:
>>>>
>>>> On 1/25/22 15:58, Ben Greear wrote:
>>>>> On 1/25/22 3:08 PM, Randy Dunlap wrote:
>>>>>> Hi,
>>>>>>
>>>>>> When I boot 5.16 or 5.17-rc1, I get messages like:
>>>>>>
>>>>>> iwlwifi 0000:00:14.3: api flags index 2 larger than supported by driver
>>>>>> iwlwifi 0000:00:14.3: TLV_FW_FSEQ_VERSION: FSEQ Version: 89.3.35.37
>>>>>> iwlwifi 0000:00:14.3: loaded firmware version 67.8f59b80b.0 QuZ-a0-hr-b0-67.ucode op_mode iwlmvm
>>>>>
>>>>> We see nothing but crashes with the version 67 firmware.  Remove that
>>>>> from your /lib/firmware/ dir (and make sure version 66 or lower is there),
>>>>> and reboot and it should work again.
>>>>
>>>> Well. Yes, that does make things work for me.
>>>>
>>>> It's odd, though, that openSUSE Tumbleweed with kernel "Linux version 5.16.1-1-default"
>>>> (whatever that is) also works with no problems.
>>>>
>>>> Thanks for your help.
>>>
>>> This is because of broadcast filtering.  This feature hasn't been
>>> supported for quite a while and now the firmware rejects the command we
>>> send to it.
>>>
>>> The easy fix is to compile iwlwifi without
>>> CONFIG_IWLWIFI_BCAST_FILTERING (which should not be enabled by
>>> default).
>>
>> Just confirming that kernel 5.16 without broadcast filtering works
>> with firmware v67.
> 
> Great, thanks for the confirmation!
> 
> Just out of curiosity.  How did you end up with broadcast filtering
> enabled? Is it a default configuration from some distro?
> 

Nope.  I didn't know that it was not supported so I enabled it.

> 
>>> I have removed this option from the driver now and will send the patch
>>> to 5.17-rc* as a fix.
>>
>> Yes, please.
> 
> Will do.
> 
> --
> Cheers,
> Luca.

-- 
~Randy