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Date:      Fri, 16 Sep 2022 15:40:01 +0200
From:      Hans Petter Selasky <hps@selasky.org>
To:        Ivan Quitschal <tezeka@hotmail.com>
Cc:        freebsd-current@freebsd.org
Subject:   Re: TP-LINK USB no carrier after speed test
Message-ID:  <5f646a9a-2885-05af-9ff1-ef4c4446f365@selasky.org>
In-Reply-To: <CP5P284MB1902026EB918E88DE5581ACCCB489@CP5P284MB1902.BRAP284.PROD.OUTLOOK.COM>
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> <CP5P284MB1902026EB918E88DE5581ACCCB489@CP5P284MB1902.BRAP284.PROD.OUTLOOK.COM>

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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;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

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



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