ath20k blocks other devices

ath20k blocks other devices

[Brummfax]

Hi everybody,

I bought a new Acer Aspire VN7-571G for my parents. As the new QCA6174
Qualcomm Atheros Wifi/bluetooth (also known as QCNFA344) device is in
use, I could not use Wifi with the usual Ubuntu 15.04 installation.
Following
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1383184/comments/115 I
compiled the new kernel with the ath10k driver and everything worked
nicely at home with my Fritzbox 7490 router using the 5GHz band. At my
parents place with a Fritzbox 3170 router I encounter the following
problem. As soon as Ubuntu is connected to Wifi (using the 2,4 GHz band
as there is no 5GHz band), other devices cannot connect to Wifi anymore.
The ath10k driver blocks all other devices (Smartphones running Android,
iPads) except for my personal laptop with a standard Ubuntu 14.10 system
which can connect to Wifi for a couple of minutes before being
disconnected as well. I can connect again but  will loose the connection
after a couple of minutes. I've also installed Windows 8.1 on the Acer
Aspire, and if I connect to Wifi using Windows, these problems
disappear, i.e. all other devices can also connect to Wifi without any
problems. I've also not seen these problems at home which could be
related to the fact that the Acer Aspire was using the 5GHz band while
the other devices where using the 2,4GHz band.


Running "cat /var/log/syslog | grep ath10k" after installation, I got 3
errors because of missing firmware:
/lib/firmware/ath10k/QCA6174/hw2.1/board-pci-168c:003e:105b:e08e.bin
/lib/firmware/ath10k/QCA6174/hw2.1/firmware-5.bin
lib/firmware/ath10k/cal-pci-0000:03:00.0.bin

The first two messages disappeared after running
sudo cp board.bin  board-pci-168c:003e:105b:e08e.bin
sudo cp firmware-4.bin firmware-5.bin
in the /lib/firmware/ath10k/QCA6174/hw2.1-directory. I could even delete
board.bin and firmware-4.bin without loosing Wifi connectivity. At the
moment these files are still there, but seem to be useless. Nevertheless
"modinfo ath10k_pci" shows that only board.bin and firmware-4.bin from
the hw2.1-directory are used. Very strange! I use the firmware extracted
from my Windows installation using firmware provided by Acer's support
page.


Any help would be appreciated!
Best wishes,
Sven


PS: Bluetooth is still not working even though its turned on and shown
as active. But I can't send or receive files.
 


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Re: ath20k blocks other devices

[Michal Kazior]

On 15 May 2015 at 12:07, Brummfax <brummfax@posteo.org> wrote:
> Hi everybody,
>
> I bought a new Acer Aspire VN7-571G for my parents. As the new QCA6174
> Qualcomm Atheros Wifi/bluetooth (also known as QCNFA344) device is in
> use, I could not use Wifi with the usual Ubuntu 15.04 installation.
> Following
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1383184/comments/115 I
> compiled the new kernel with the ath10k driver and everything worked
> nicely at home with my Fritzbox 7490 router using the 5GHz band. At my
> parents place with a Fritzbox 3170 router I encounter the following
> problem. As soon as Ubuntu is connected to Wifi (using the 2,4 GHz band
> as there is no 5GHz band), other devices cannot connect to Wifi anymore.
> The ath10k driver blocks all other devices (Smartphones running Android,
> iPads) except for my personal laptop with a standard Ubuntu 14.10 system
> which can connect to Wifi for a couple of minutes before being
> disconnected as well. I can connect again but  will loose the connection
> after a couple of minutes. I've also installed Windows 8.1 on the Acer
> Aspire, and if I connect to Wifi using Windows, these problems
> disappear, i.e. all other devices can also connect to Wifi without any
> problems. I've also not seen these problems at home which could be
> related to the fact that the Acer Aspire was using the 5GHz band while
> the other devices where using the 2,4GHz band.

Can you get some sniff logs and possibly wpa_supplicant verbose logs
from, e.g. another linux-based client? At this point I don't have any
data to draw conclusions from. Is the network encrypted? Can you try
seeing if open network also yields the same behaviour?

Logs/traces from ath10k client itself would be also helpful. You can
read more about getting these here:
https://wireless.wiki.kernel.org/en/users/drivers/ath10k/debug#tracing


> Running "cat /var/log/syslog | grep ath10k" after installation, I got 3
> errors because of missing firmware:
> /lib/firmware/ath10k/QCA6174/hw2.1/board-pci-168c:003e:105b:e08e.bin
> /lib/firmware/ath10k/QCA6174/hw2.1/firmware-5.bin
> lib/firmware/ath10k/cal-pci-0000:03:00.0.bin
>
> The first two messages disappeared after running
> sudo cp board.bin  board-pci-168c:003e:105b:e08e.bin
> sudo cp firmware-4.bin firmware-5.bin
> in the /lib/firmware/ath10k/QCA6174/hw2.1-directory. I could even delete
> board.bin and firmware-4.bin without loosing Wifi connectivity. At the
> moment these files are still there, but seem to be useless. Nevertheless
> "modinfo ath10k_pci" shows that only board.bin and firmware-4.bin from
> the hw2.1-directory are used. Very strange! I use the firmware extracted
> from my Windows installation using firmware provided by Acer's support
> page.

There's a slight bug in firmware file advertisement in ath10k_pci
hence modinfo tells you firmware-4.bin is the latest support for
qca6174 while firmware-5.bin for qca988x. This is incorrect - both
chips support firmware-5.bin in the ath10k git master branch. ath10k
tries to load newer firmware binaries first and falls back to older.
Nothing to worry about now though.


Michał

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Re: ath20k blocks other devices

[Eduardo Costa]

Hi,
Just to share that this is not an isolate case, I suffer from the
exact same problem with a Clevo P751ZM laptop and a Linksys WR610N v1
router.
I'll try to help, adding debug info to this thread, as soon as I can.


On Fri, May 15, 2015 at 11:25 AM, Michal Kazior <michal.kazior@tieto.com> wrote:
> On 15 May 2015 at 12:07, Brummfax <brummfax@posteo.org> wrote:
>> Hi everybody,
>>
>> I bought a new Acer Aspire VN7-571G for my parents. As the new QCA6174
>> Qualcomm Atheros Wifi/bluetooth (also known as QCNFA344) device is in
>> use, I could not use Wifi with the usual Ubuntu 15.04 installation.
>> Following
>> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1383184/comments/115 I
>> compiled the new kernel with the ath10k driver and everything worked
>> nicely at home with my Fritzbox 7490 router using the 5GHz band. At my
>> parents place with a Fritzbox 3170 router I encounter the following
>> problem. As soon as Ubuntu is connected to Wifi (using the 2,4 GHz band
>> as there is no 5GHz band), other devices cannot connect to Wifi anymore.
>> The ath10k driver blocks all other devices (Smartphones running Android,
>> iPads) except for my personal laptop with a standard Ubuntu 14.10 system
>> which can connect to Wifi for a couple of minutes before being
>> disconnected as well. I can connect again but  will loose the connection
>> after a couple of minutes. I've also installed Windows 8.1 on the Acer
>> Aspire, and if I connect to Wifi using Windows, these problems
>> disappear, i.e. all other devices can also connect to Wifi without any
>> problems. I've also not seen these problems at home which could be
>> related to the fact that the Acer Aspire was using the 5GHz band while
>> the other devices where using the 2,4GHz band.
>
> Can you get some sniff logs and possibly wpa_supplicant verbose logs
> from, e.g. another linux-based client? At this point I don't have any
> data to draw conclusions from. Is the network encrypted? Can you try
> seeing if open network also yields the same behaviour?
>
> Logs/traces from ath10k client itself would be also helpful. You can
> read more about getting these here:
> https://wireless.wiki.kernel.org/en/users/drivers/ath10k/debug#tracing
>
>
>> Running "cat /var/log/syslog | grep ath10k" after installation, I got 3
>> errors because of missing firmware:
>> /lib/firmware/ath10k/QCA6174/hw2.1/board-pci-168c:003e:105b:e08e.bin
>> /lib/firmware/ath10k/QCA6174/hw2.1/firmware-5.bin
>> lib/firmware/ath10k/cal-pci-0000:03:00.0.bin
>>
>> The first two messages disappeared after running
>> sudo cp board.bin  board-pci-168c:003e:105b:e08e.bin
>> sudo cp firmware-4.bin firmware-5.bin
>> in the /lib/firmware/ath10k/QCA6174/hw2.1-directory. I could even delete
>> board.bin and firmware-4.bin without loosing Wifi connectivity. At the
>> moment these files are still there, but seem to be useless. Nevertheless
>> "modinfo ath10k_pci" shows that only board.bin and firmware-4.bin from
>> the hw2.1-directory are used. Very strange! I use the firmware extracted
>> from my Windows installation using firmware provided by Acer's support
>> page.
>
> There's a slight bug in firmware file advertisement in ath10k_pci
> hence modinfo tells you firmware-4.bin is the latest support for
> qca6174 while firmware-5.bin for qca988x. This is incorrect - both
> chips support firmware-5.bin in the ath10k git master branch. ath10k
> tries to load newer firmware binaries first and falls back to older.
> Nothing to worry about now though.
>
>
> Michał
>
> _______________________________________________
> ath10k mailing list
> ath10k@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/ath10k



-- 
ECosta

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Re: ath20k blocks other devices

[Anton Romanov]

I just tested and indeed - once I connect to my 5Ghz AP with ath10k,
my phone loses connection to it and can no longer reestablish it
unless I disconnect ath10k.

(Asus RT-AC66R, Alienware 15 N1525 QCA6174, kvalo's tree)

On Fri, May 15, 2015 at 3:52 AM, Eduardo Costa <eu@ejcosta.info> wrote:
> Hi,
> Just to share that this is not an isolate case, I suffer from the
> exact same problem with a Clevo P751ZM laptop and a Linksys WR610N v1
> router.
> I'll try to help, adding debug info to this thread, as soon as I can.
>
>
> On Fri, May 15, 2015 at 11:25 AM, Michal Kazior <michal.kazior@tieto.com> wrote:
>> On 15 May 2015 at 12:07, Brummfax <brummfax@posteo.org> wrote:
>>> Hi everybody,
>>>
>>> I bought a new Acer Aspire VN7-571G for my parents. As the new QCA6174
>>> Qualcomm Atheros Wifi/bluetooth (also known as QCNFA344) device is in
>>> use, I could not use Wifi with the usual Ubuntu 15.04 installation.
>>> Following
>>> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1383184/comments/115 I
>>> compiled the new kernel with the ath10k driver and everything worked
>>> nicely at home with my Fritzbox 7490 router using the 5GHz band. At my
>>> parents place with a Fritzbox 3170 router I encounter the following
>>> problem. As soon as Ubuntu is connected to Wifi (using the 2,4 GHz band
>>> as there is no 5GHz band), other devices cannot connect to Wifi anymore.
>>> The ath10k driver blocks all other devices (Smartphones running Android,
>>> iPads) except for my personal laptop with a standard Ubuntu 14.10 system
>>> which can connect to Wifi for a couple of minutes before being
>>> disconnected as well. I can connect again but  will loose the connection
>>> after a couple of minutes. I've also installed Windows 8.1 on the Acer
>>> Aspire, and if I connect to Wifi using Windows, these problems
>>> disappear, i.e. all other devices can also connect to Wifi without any
>>> problems. I've also not seen these problems at home which could be
>>> related to the fact that the Acer Aspire was using the 5GHz band while
>>> the other devices where using the 2,4GHz band.
>>
>> Can you get some sniff logs and possibly wpa_supplicant verbose logs
>> from, e.g. another linux-based client? At this point I don't have any
>> data to draw conclusions from. Is the network encrypted? Can you try
>> seeing if open network also yields the same behaviour?
>>
>> Logs/traces from ath10k client itself would be also helpful. You can
>> read more about getting these here:
>> https://wireless.wiki.kernel.org/en/users/drivers/ath10k/debug#tracing
>>
>>
>>> Running "cat /var/log/syslog | grep ath10k" after installation, I got 3
>>> errors because of missing firmware:
>>> /lib/firmware/ath10k/QCA6174/hw2.1/board-pci-168c:003e:105b:e08e.bin
>>> /lib/firmware/ath10k/QCA6174/hw2.1/firmware-5.bin
>>> lib/firmware/ath10k/cal-pci-0000:03:00.0.bin
>>>
>>> The first two messages disappeared after running
>>> sudo cp board.bin  board-pci-168c:003e:105b:e08e.bin
>>> sudo cp firmware-4.bin firmware-5.bin
>>> in the /lib/firmware/ath10k/QCA6174/hw2.1-directory. I could even delete
>>> board.bin and firmware-4.bin without loosing Wifi connectivity. At the
>>> moment these files are still there, but seem to be useless. Nevertheless
>>> "modinfo ath10k_pci" shows that only board.bin and firmware-4.bin from
>>> the hw2.1-directory are used. Very strange! I use the firmware extracted
>>> from my Windows installation using firmware provided by Acer's support
>>> page.
>>
>> There's a slight bug in firmware file advertisement in ath10k_pci
>> hence modinfo tells you firmware-4.bin is the latest support for
>> qca6174 while firmware-5.bin for qca988x. This is incorrect - both
>> chips support firmware-5.bin in the ath10k git master branch. ath10k
>> tries to load newer firmware binaries first and falls back to older.
>> Nothing to worry about now though.
>>
>>
>> Michał
>>
>> _______________________________________________
>> ath10k mailing list
>> ath10k@lists.infradead.org
>> http://lists.infradead.org/mailman/listinfo/ath10k
>
>
>
> --
> ECosta
>
> _______________________________________________
> ath10k mailing list
> ath10k@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/ath10k

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Re: ath20k blocks other devices

[Eduardo Costa]

On Fri, May 15, 2015 at 5:11 PM, Anton Romanov <theli.ua@gmail.com> wrote:
> I just tested and indeed - once I connect to my 5Ghz AP with ath10k,
> my phone loses connection to it and can no longer reestablish it
> unless I disconnect ath10k.
>
> (Asus RT-AC66R, Alienware 15 N1525 QCA6174, kvalo's tree)
Could you stay connected stable on 2,4 GHz?
If so, your scenario is the opposite of reported.

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Re: ath20k blocks other devices

[Eduardo Costa]

On Fri, May 15, 2015 at 11:25 AM, Michal Kazior <michal.kazior@tieto.com> wrote:
> Can you get some sniff logs and possibly wpa_supplicant verbose logs
> from, e.g. another linux-based client? At this point I don't have any
> data to draw conclusions from. Is the network encrypted? Can you try
> seeing if open network also yields the same behaviour?
>
> Logs/traces from ath10k client itself would be also helpful. You can
> read more about getting these here:
> https://wireless.wiki.kernel.org/en/users/drivers/ath10k/debug#tracing

I have some info to share and help on analysis.

My setup:
Laptop w/Killer card - Clevo P751ZM [4.1.0-rc1-wl-ath+ (from kvallo fork)]
Laptop Lenovo T400 [3.13.0-52-generic]
Andoird phone Samsung G S3 [Cyanogen]

I'v collected a tcp dump on all 3 devices, wpa_supplicant on 2 laptops
and trace on P751ZM.
All this starting when the first one was not connected to my wireless
AP, then I connect it and wait until two other devices lose their
connection.

Find files on: https://www.dropbox.com/sh/tdjf1m06rdx610f/AADuxvtZVCysDANnyFK1NKNHa?dl=0

Let me know if additional help/info is needed.

Additionally, I'v tried with open network and the problem remains.

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Re: ath20k blocks other devices

[Michal Kazior]

On 16 May 2015 at 17:59, Eduardo Costa <eu@ejcosta.info> wrote:
> On Fri, May 15, 2015 at 11:25 AM, Michal Kazior <michal.kazior@tieto.com> wrote:
>> Can you get some sniff logs and possibly wpa_supplicant verbose logs
>> from, e.g. another linux-based client? At this point I don't have any
>> data to draw conclusions from. Is the network encrypted? Can you try
>> seeing if open network also yields the same behaviour?
>>
>> Logs/traces from ath10k client itself would be also helpful. You can
>> read more about getting these here:
>> https://wireless.wiki.kernel.org/en/users/drivers/ath10k/debug#tracing
>
> I have some info to share and help on analysis.
[...]

Can you guys try https://patchwork.kernel.org/patch/6387631/ , please?


Michał

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Re: ath20k blocks other devices

[Anton Romanov]

Yeah, I'd like to confirm here as well that this indeed fixed this
problem for me.

On Wed, May 20, 2015 at 10:29 PM, Michal Kazior <michal.kazior@tieto.com> wrote:
> On 16 May 2015 at 17:59, Eduardo Costa <eu@ejcosta.info> wrote:
>> On Fri, May 15, 2015 at 11:25 AM, Michal Kazior <michal.kazior@tieto.com> wrote:
>>> Can you get some sniff logs and possibly wpa_supplicant verbose logs
>>> from, e.g. another linux-based client? At this point I don't have any
>>> data to draw conclusions from. Is the network encrypted? Can you try
>>> seeing if open network also yields the same behaviour?
>>>
>>> Logs/traces from ath10k client itself would be also helpful. You can
>>> read more about getting these here:
>>> https://wireless.wiki.kernel.org/en/users/drivers/ath10k/debug#tracing
>>
>> I have some info to share and help on analysis.
> [...]
>
> Can you guys try https://patchwork.kernel.org/patch/6387631/ , please?
>
>
> Michał
>
> _______________________________________________
> ath10k mailing list
> ath10k@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/ath10k

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Re: ath20k blocks other devices

[Eduardo Costa]

Problem solved with this patch!
Many thanks.

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