Intel WiFi regression on linux-next

Intel WiFi regression on linux-next

[Mitchel Humpherys]

Hello,

WiFi on my Acer Aspire 5739G is currently broken on linux-next.  I
bisected it to the following commit:

    commit 97f95c93c8ed5177371e75275f236513152fa308
    Author: Sara Sharon <sara.sharon@intel.com>
    Date:   Mon Mar 7 16:55:20 2016 +0200
    
        iwlwifi: remove support for fw older than -16.ucode

This issue was already reported here [1].  I'm just adding some more
hardware details (and am not subscribed to linux-wireless so I can't
reply over there).

It's failing with:

    iwlwifi 0000:05:00.0: enabling device (0000 -> 0002)
    iwlwifi 0000:05:00.0: can't disable ASPM; OS doesn't have ASPM control
    iwlwifi 0000:05:00.0: Driver unable to support your firmware API. Driver supports v5, firmware is v139658497.
    iwlwifi 0000:05:00.0: Direct firmware load for iwlwifi-5000-4.ucode failed with error -2
    iwlwifi 0000:05:00.0: request for firmware file 'iwlwifi-5000-4.ucode' failed.
    iwlwifi 0000:05:00.0: Direct firmware load for iwlwifi-5000-3.ucode failed with error -2
    iwlwifi 0000:05:00.0: request for firmware file 'iwlwifi-5000-3.ucode' failed.
    iwlwifi 0000:05:00.0: Driver unable to support your firmware API. Driver supports v5, firmware is v135791116.
    iwlwifi 0000:05:00.0: Driver unable to support your firmware API. Driver supports v5, firmware is v84148496.
    iwlwifi 0000:05:00.0: no suitable firmware found!

Here's some more info on my wireless chipset:

    05:00.0 Network controller: Intel Corporation WiFi Link 5100
            Subsystem: Intel Corporation WiFi Link 5100 AGN
            Flags: bus master, fast devsel, latency 0, IRQ 31
            Memory at c0400000 (64-bit, non-prefetchable) [size=8K]
            Capabilities: [c8] Power Management version 3
            Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
            Capabilities: [e0] Express Endpoint, MSI 00
            Capabilities: [100] Advanced Error Reporting
            Capabilities: [140] Device Serial Number 00-1e-65-ff-ff-80-25-f6
            Kernel driver in use: iwlwifi
            Kernel modules: iwlwifi

The laptop isn't _that_ old so I'm surprised the driver is ripping out
support for it...  Is there some other driver I should be using?


[1] https://www.mail-archive.com/linux-wireless@vger.kernel.org/msg22688.html


-- 
Mitch

Re: Intel WiFi regression on linux-next

[Luca Coelho]

On Tue, 2016-04-26 at 10:14 -0700, Mitchel Humpherys wrote:
> Hello,

Hello Mitchel,


> WiFi on my Acer Aspire 5739G is currently broken on linux-next.  I
> bisected it to the following commit:
> 
>     commit 97f95c93c8ed5177371e75275f236513152fa308
>     Author: Sara Sharon <sara.sharon@intel.com>
>     Date:   Mon Mar 7 16:55:20 2016 +0200
>     
>         iwlwifi: remove support for fw older than -16.ucode
> 
> This issue was already reported here [1].  I'm just adding some more
> hardware details (and am not subscribed to linux-wireless so I can't
> reply over there).
> 
> It's failing with:
> 
>     iwlwifi 0000:05:00.0: enabling device (0000 -> 0002)
>     iwlwifi 0000:05:00.0: can't disable ASPM; OS doesn't have ASPM
> control
>     iwlwifi 0000:05:00.0: Driver unable to support your firmware API.
> Driver supports v5, firmware is v139658497.
>     iwlwifi 0000:05:00.0: Direct firmware load for iwlwifi-5000-
> 4.ucode failed with error -2
>     iwlwifi 0000:05:00.0: request for firmware file 'iwlwifi-5000-
> 4.ucode' failed.
>     iwlwifi 0000:05:00.0: Direct firmware load for iwlwifi-5000-
> 3.ucode failed with error -2
>     iwlwifi 0000:05:00.0: request for firmware file 'iwlwifi-5000-
> 3.ucode' failed.
>     iwlwifi 0000:05:00.0: Driver unable to support your firmware API.
> Driver supports v5, firmware is v135791116.
>     iwlwifi 0000:05:00.0: Driver unable to support your firmware API.
> Driver supports v5, firmware is v84148496.
>     iwlwifi 0000:05:00.0: no suitable firmware found!

This was fixed in a patch I sent to Kalle yesterday and he merged
today:

http://git.kernel.org/cgit/linux/kernel/git/kvalo/wireless-drivers-next
.git/commit/?id=f0d8f38cd909e072833a06b79939256c4aebe3a0

HTH.

--
Cheers,
Luca.

Re: Intel WiFi regression on linux-next

[Mitchel Humpherys]

On Tue, Apr 26 2016 at 09:31:08 PM, Luca Coelho <luca@coelho.fi> wrote:
> On Tue, 2016-04-26 at 10:14 -0700, Mitchel Humpherys wrote:
> This was fixed in a patch I sent to Kalle yesterday and he merged
> today:
>
> http://git.kernel.org/cgit/linux/kernel/git/kvalo/wireless-drivers-next
> .git/commit/?id=f0d8f38cd909e072833a06b79939256c4aebe3a0

That did the trick, thanks!

-- 
Mitch