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Date:      Fri, 16 Sep 2022 08:38:44 +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:  <11b7de01-d95e-5280-2a22-8b17e29c34c0@selasky.org>
In-Reply-To: <5c9c47d6-9e12-ae76-ce67-15aeae1b8636@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>

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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%7Ce7f888b3635f4e898ca308da972fa69b%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637988528164303655%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&amp;sdata=zvw7m8lJ%2FHocK%2FXJIDfdPv%2FArCpE5pk9lYz%2BY8WzMCc%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



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