Re: RES: TP-LINK USB no carrier after speed test

From: Ivan Quitschal <tezeka_at_hotmail.com>
Date: Sun, 18 Sep 2022 11:50:07 UTC

On Fri, 16 Sep 2022, Ivan Quitschal wrote:

>
>
> On Fri, 16 Sep 2022, Hans Petter Selasky wrote:
>
>> On 9/16/22 16:31, Ivan Quitschal wrote:
>>> 
>>> 
>>>> -----Mensagem original-----
>>>> De: Hans Petter Selasky <hps@selasky.org>
>>>> Enviada em: sexta-feira, 16 de setembro de 2022 10:40
>>>> Para: Ivan Quitschal <tezeka@hotmail.com>
>>>> Cc: freebsd-current@freebsd.org
>>>> Assunto: Re: TP-LINK USB no carrier after speed test
>>>> 
>>>> On 9/16/22 14:18, Ivan Quitschal wrote:
>>>>> 
>>>>> 
>>>>> On Fri, 16 Sep 2022, Hans Petter Selasky wrote:
>>>>> 
>>>>>> On 9/16/22 08:34, Hans Petter Selasky wrote:
>>>>>>> On 9/16/22 08:20, Hans Petter Selasky wrote:
>>>>>>>> On 9/15/22 17:36, Ivan Quitschal wrote:
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> On Thu, 15 Sep 2022, Ivan Quitschal wrote:
>>>>>>>>> 
>>>>>>>>>> 
>>>>>>>>>> 
>>>>>>>>>> On Thu, 15 Sep 2022, Hans Petter Selasky wrote:
>>>>>>>>>> 
>>>>>>>>>>> On 9/15/22 17:18, Hans Petter Selasky wrote:
>>>>>>>>>>>> On 9/15/22 17:16, Ivan Quitschal wrote:
>>>>>>>>>>>>> 
>>>>>>>>>>>>> Hi All
>>>>>>>>>>>>> 
>>>>>>>>>>>>> Does anybody have any idea what could be happening here?.
>>>>>>>>>>>>> I have a laptop DELL INSPIRON 3511 and everything works just
>>>>>>>>>>>>> fine, literally everything. even the iwlwifi0.
>>>>>>>>>>>>> 
>>>>>>>>>>>>> But in order to use my full 600mbps, i dont use the wireless
>>>>>>>>>>>>> but a TP-LINK USB ethernet connected on "ue0"
>>>>>>>>>>>>> 
>>>>>>>>>>>>> ugen0.6: <TP-Link USB 10/100/1000 LAN> at usbus0, cfg=0
>>>>>>>>>>>>> md=HOST spd=HIGH (480Mbps) pwr=ON (200mA)
>>>>>>>>>>>>> 
>>>>>>>>>>>>> 
>>>>>>>>>>>>> but something really strange is happening .. everytime i open
>>>>>>>>>>>>> the chromium e do a speedtest (could be speedtest.net or any
>>>>>>>>>>>>> other) , at the end of the test the eth interface dies .. it
>>>>>>>>>>>>> changes from full-duplex to half-duplex/no carrier and the
>>>>>>>>>>>>> only way to get the internet back thru ue0 is by rebooting the
>>>>>>>>>>>>> whole thing.
>>>>>>>>>>>>> not even a "service netif restart" does anything
>>>>>>>>>>>>> 
>>>>>>>>>>>>> if anyone has any ideas why is that , would be appreciated
>>>>>>>>>>>>> 
>>>>>>>>>>>> 
>>>>>>>>>>>> Hi,
>>>>>>>>>>>> 
>>>>>>>>>>>> I think it some new features they use in the USB data protocol
>>>>>>>>>>>> which we don't support. Check the Linux code.
>>>>>>>>>>>> 
>>>>>>>>>>>> Between does:
>>>>>>>>>>>> 
>>>>>>>>>>>> usbconfig -d 0.6 reset
>>>>>>>>>>>> 
>>>>>>>>>>>> recover the device?
>>>>>>>>>>>> 
>>>>>>>>>>>> --HPS
>>>>>>>>>>>> 
>>>>>>>>>>> 
>>>>>>>>>>> Hi,
>>>>>>>>>>> 
>>>>>>>>>>> Search for axge on bugzilla:
>>>>>>>>>>> 
>>>>>>>>>>> I suspect you are using this chipset:
>>>>>>>>>>> 
>>>>>>>>>>> Try:
>>>>>>>>>>> 
>>>>>>>>>>> usbconfig show_ifdrv
>>>>>>>>>>> 
>>>>>>>>>>> To know for sure.
>>>>>>>>>>> 
>>>>>>>>>>> Also see:
>>>>>>>>>>> 
>>>>>>>>>>> https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%
>>>>>>>>>>> 
>>>> 2Fbugs.freebsd.org%2Fbugzilla%2Fshow_bug.cgi%3Fid%3D210488&amp;d
>>>>>>>>>>> 
>>>> ata=05%7C01%7C%7C7d0b875611fa4c22aa6808da97e8f75a%7C84df9e7fe9f6
>>>>>>>>>>> 
>>>> 40afb435aaaaaaaaaaaa%7C1%7C0%7C637989324107373931%7CUnknown%7C
>>>> TW
>>>>>>>>>>> 
>>>> FpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLC
>>>>>>>>>>> 
>>>> JXVCI6Mn0%3D%7C3000%7C%7C%7C&amp;sdata=o%2B12TNKJ4bcBBj1b4r4TT
>>>> 1f
>>>>>>>>>>> xyEalCMDMjOepy3MZm5c%3D&amp;reserved=0
>>>>>>>>>>> 
>>>>>>>>>>> --HPS
>>>>>>>>>>> 
>>>>>>>>>> 
>>>>>>>>>> 
>>>>>>>>>> Hi Hans,
>>>>>>>>>> 
>>>>>>>>>> actually the driver i use is not agxe (i thought it would be by
>>>>>>>>>> the time i bought the usbcard)
>>>>>>>>>> 
>>>>>>>>>> this is the module im using
>>>>>>>>>> 
>>>>>>>>>> if_ure.ko
>>>>>>>>>> 
>>>>>>>>>> and thank you , yes, reseting the usb entry with your command
>>>>>>>>>> worked just fine.
>>>>>>>>>> i got the internet back after doing this
>>>>>>>>>> 
>>>>>>>>>> usbconfig -d 0.6 reset
>>>>>>>>>> 
>>>>>>>>>> do we have a bug here then?
>>>>>>>>>> 
>>>>>>>>>> thank you
>>>>>>>>>> 
>>>>>>>>>> --tzk
>>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> oh, i forgot to mention that the ure driver freezes not during the
>>>>>>>>> download test but in the middle of the upload, always
>>>>>>>>> 
>>>>>>>>> dont know if that helps
>>>>>>>>> 
>>>>>>>>> thanks
>>>>>>>>> 
>>>>>>>>> --tzk
>>>>>>>> 
>>>>>>>> Hi Ivan,
>>>>>>>> 
>>>>>>>> Yes, there seems to be problem there. I need to look at the driver.
>>>>>>>> Maybe it is simply sending too much data, than the device can handle!
>>>>>>>> 
>>>>>>>> --HPS
>>>>>>>> 
>>>>>>> 
>>>>>>> Hi,
>>>>>>> 
>>>>>>> Try lowering this constant to 8192:
>>>>>>> 
>>>>>>> sys/dev/usb/net/if_urereg.h:#define    URE_TX_BUFSZ        16384
>>>>>>> 
>>>>>>> Then recompile and install if_ure:
>>>>>>> 
>>>>>>> make -C sys/modules/usb/ure KMODDIR=/boot/kernel all install
>>>>>>> 
>>>>>>> --HPS
>>>>>>> 
>>>>>> 
>>>>>> You can also try other values, like subtracting one.
>>>>>> 
>>>>>> --HPS
>>>>>> 
>>>>> 
>>>>> 
>>>>> hi Hans,
>>>>> 
>>>>> it worked but with a cost.
>>>>> 
>>>>> i tried 8192 and it works 5 tests (5 speed tests in a row). freezes on
>>>>> the 6th.
>>>>> 
>>>>> then i tried 4096 no success
>>>>> 
>>>>> then i tried bufsize 2048 and its working now, i did several tests in
>>>>> a row and the internet keeps working just fine. but i noticed that the
>>>>> speed also dropped.
>>>>> 
>>>>> with the same server , testing on windows, it goes like:
>>>>> 600 download / 300 upload
>>>>> 
>>>>> and on freebsd with 2048 bufsiz it goes like:
>>>>> 300 download / 150 upload
>>>>> 
>>>>> 
>>>>> so it worked with a cost like i said, i had to give up half of my
>>>>> bandwitch
>>>>> 
>>>>> what do you think ?
>>>>> 
>>>>> and thank you again
>>>>> 
>>>>> --tzk
>>>> 
>>>> Hi,
>>>> 
>>>> Can you try this instead:
>>>> 
>>>> usbconfig -d X.Y set_config 1
>>>> 
>>>> X.Y are the numbers after ugenX.Y
>>>> 
>>>> Then it will use a different driver.
>>>> 
>>>> --HPS
>>> 
>>> Hi Hans,
>>> 
>>> After the usbconfig -d X.Y set_config 1, the interface doesn't work 
>>> anymore, how can I undo this?
>>> 
>>> Thanks
>>> 
>>> Ivan
>>> 
>> 
>> usbconfig -d X.Y set_config 0
>> 
>> or
>> 
>> usbconfig -d X.Y reset
>> 
>> Did you check dmesg?
>> 
>> --HPS
>> 
>
> hi Hans,
>
> i had to reboot my router but i got my interface back running.
> and i have good news
> after that, im still using the buffersiz 2048 and this time i got 600mbps 
> download /300 upload just like that.
> these 2 things were not related i can see.
>
> i guess thats it , looks like its solved.. i will keep monitoring here , but 
> so far so good
>
> thank you a lot as always
>
> --tzk
>

Hi Hans

just a heads up, it worked, tested a thousand times and the problem does not 
occur anylonger after i changed the constant to 2048

but upload speed was affcted a little i believe.
insted of 600/300 of internet speed , im having 600/90

but thats fine, way better now.

should this bug be in bugzilla for this ure driver as well wehave for axge?

thanks

--tzk