Message-ID: <f9a5e31ee39132a686b2cccef52a60f677c2bc39.camel@intel.com> (sfid-20180410_080052_270789_FC4358F1)
Subject: Re: iwlwifi: FW error in SYNC CMD TIME_QUOTA_CMD
From: Luciano Coelho <luciano.coelho@intel.com>
To: Daniel Borkmann <daniel@iogearbox.net>, johannes.berg@intel.com
Cc: emmanuel.grumbach@intel.com, linux-wireless@vger.kernel.org,
        iwlwifi@intel.com
Date: Tue, 10 Apr 2018 09:00:45 +0300
In-Reply-To: <1a94e616-7dcc-6b70-abb4-684d2f69eb23@iogearbox.net>
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         <1523084065.4488.11.camel@intel.com>
         <71396747-1be5-78de-3ff7-d0df91d37d36@iogearbox.net>
         <1a94e616-7dcc-6b70-abb4-684d2f69eb23@iogearbox.net>
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Sender: linux-wireless-owner@vger.kernel.org

On Mon, 2018-04-09 at 15:37 +0200, Daniel Borkmann wrote:
> On 04/09/2018 12:13 AM, Daniel Borkmann wrote:
> > Hi Luciano,
> > 
> > On 04/07/2018 08:54 AM, Luciano Coelho wrote:
> > > On Thu, 2018-04-05 at 16:55 +0200, Daniel Borkmann wrote:
> > 
> > [...]
> > > > after upgrading to 4608f064532c ("Merge
> > > > git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-
> > > > next")
> > > > my kernel log gets constantly flooded with the below message
> > > > and
> > > > wireless stops
> > > > working ... just in case you haven't had a report on this yet.
> > > > Downgrading back
> > > > to older v4.16-rcX kernel gets everything back to normal
> > > > working
> > > > state; haven't
> > > > had time for bisection yet, but hopefully the below would
> > > > provide
> > > > some clue.
> > > 
> > > [...]
> > > 
> > > > [  513.429773] iwlwifi 0000:04:00.0: Failed to send quota: -5
> > > > [  513.429775] iwlwifi 0000:04:00.0: Failed to update quotas
> > > > after
> > > > restart (-5)
> > > > [  514.163758] iwlwifi 0000:04:00.0: Microcode SW error
> > > > detected.  Restarting 0x82000000.
> > > > [  514.163987] iwlwifi 0000:04:00.0: Start IWL Error Log Dump:
> > > > [  514.163988] iwlwifi 0000:04:00.0: Status: 0x00000100, count:
> > > > 6
> > > > [  514.163989] iwlwifi 0000:04:00.0: Loaded firmware version:
> > > > 27.455470.0
> > > > [  514.163991] iwlwifi 0000:04:00.0: 0x00000038 | BAD_COMMAND
> > > 
> > > [...]
> > > 
> > > I did add support for new FW APIs, so maybe some check for the FW
> > > version is missing somewhere.
> > > 
> > > Which NIC are you using? I can see that you're using an older
> > > version
> > > of the firmware (27.455470.0).  For 7265D and 3168 we already
> > > have
> > > version 29.  For 8000C and 8260 we have vesion 36.  You can find
> > > all
> > > the latest versions in our fork of linux-firmware.git[1].  And
> > > soon the
> > > main linux-firmware.git[2] will also include the latest versions,
> > > since
> > > I sent a pull request yesteday ago.
> > > 
> > > Meanwhile, I'll investigate this problem.  It shouldn't happen
> > > even if
> > > you're using an older firmware.  Maybe I'll have to stop
> > > supporting
> > > version 27 in newer kernels, let's see.
> > 
> > Here's from the log on an older (working) kernel:
> > 
> > $ dmesg | grep iwlwifi
> > [    7.672955] iwlwifi 0000:04:00.0: enabling device (0000 -> 0002)
> > [    7.705000] iwlwifi 0000:04:00.0: Direct firmware load for
> > iwlwifi-8000C-36.ucode failed with error -2
> > [    7.705208] iwlwifi 0000:04:00.0: Direct firmware load for
> > iwlwifi-8000C-35.ucode failed with error -2
> > [    7.705391] iwlwifi 0000:04:00.0: Direct firmware load for
> > iwlwifi-8000C-34.ucode failed with error -2
> > [    7.705850] iwlwifi 0000:04:00.0: Direct firmware load for
> > iwlwifi-8000C-33.ucode failed with error -2
> > [    7.706118] iwlwifi 0000:04:00.0: Direct firmware load for
> > iwlwifi-8000C-32.ucode failed with error -2
> > [    7.706463] iwlwifi 0000:04:00.0: Direct firmware load for
> > iwlwifi-8000C-31.ucode failed with error -2
> > [    7.706789] iwlwifi 0000:04:00.0: Direct firmware load for
> > iwlwifi-8000C-30.ucode failed with error -2
> > [    7.707182] iwlwifi 0000:04:00.0: Direct firmware load for
> > iwlwifi-8000C-29.ucode failed with error -2
> > [    7.707746] iwlwifi 0000:04:00.0: Direct firmware load for
> > iwlwifi-8000C-28.ucode failed with error -2
> > [    7.714899] iwlwifi 0000:04:00.0: loaded firmware version
> > 27.455470.0 op_mode iwlmvm
> > [    8.400655] iwlwifi 0000:04:00.0: Detected Intel(R) Dual Band
> > Wireless AC 8260, REV=0x208
> > [    8.475161] iwlwifi 0000:04:00.0: base HW address: [...]
> > [    8.568333] iwlwifi 0000:04:00.0 wlp4s0: renamed from wlan0
> > 
> > I'll try to upgrade the FW in the mean time, thanks!
> 
> Moved to iwlwifi-8000C-36 and that definitely helped. Thanks!

Great, I'm glad it works for you now!

Thanks for reporting.

--
Cheers,
Luca.