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Date:      Fri, 16 Sep 2022 09:18:39 -0300 (-03)
From:      Ivan Quitschal <tezeka@hotmail.com>
To:        Hans Petter Selasky <hps@selasky.org>
Cc:        Ivan Quitschal <tezeka@hotmail.com>, freebsd-current@freebsd.org
Subject:   Re: TP-LINK USB no carrier after speed test
Message-ID:  <CP5P284MB1902026EB918E88DE5581ACCCB489@CP5P284MB1902.BRAP284.PROD.OUTLOOK.COM>
In-Reply-To: <11b7de01-d95e-5280-2a22-8b17e29c34c0@selasky.org>
References:  <CP6P284MB1900F16EDAEAF1CB485BC372CB499@CP6P284MB1900.BRAP284.PROD.OUTLOOK.COM> <7d14c045-81dc-fc08-4d62-69fb90a26edb@selasky.org> <9188fd1d-00ae-134b-488a-e75fbd152c98@selasky.org> <CP6P284MB1900A15CE4C38304F4925A60CB499@CP6P284MB1900.BRAP284.PROD.OUTLOOK.COM> <CP6P284MB1900CF5B403F7F8BE7DD5857CB499@CP6P284MB1900.BRAP284.PROD.OUTLOOK.COM> <de8c944a-59b7-1fb0-e8bf-0f4c31d95090@selasky.org> <5c9c47d6-9e12-ae76-ce67-15aeae1b8636@selasky.org> <11b7de01-d95e-5280-2a22-8b17e29c34c0@selasky.org>

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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;data=05%7C01%7C%7C266a987745fc4f2d0b9008da97ae1d13%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637989071335334015%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&amp;sdata=zKuhXtYc%2FG3qpRtU%2FZNr5uEeQARsGudcWIlC1bVOsLE%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

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