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

From: Ivan Quitschal <tezeka_at_hotmail.com>
Date: Fri, 16 Sep 2022 15:09:38 UTC

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