[U-Boot] [PATCH] usb: ci_udc: fix interaction with CONFIG_USB_ETH_CDC

[Jörg Krause]

On 06/28/2014 10:45 PM, Marek Vasut wrote:
> On Saturday, June 28, 2014 at 10:37:35 PM, Jörg Krause wrote:
>> On 06/28/2014 09:59 PM, Marek Vasut wrote:
>>> I would actually be really glad if you could test plain u-boot-usb/master
>>> and see if your USB problem is present there. Also, it would be really
>>> nice to isolate the sequence of commands which triggers the bug, so we
>>> have a proper reproducible testcase.
>>>
>>> Anyway, this thread is not a place where I would like to discuss this.
>>> This should be discussed in the "original" thread, that is:
>>>
>>> Subj: [PATCH] usb: ci_udc: fix interaction with CONFIG_USB_ETH_CDC
>> I cloned u-boot-usb/master and tested it. I am running "tftpd
>> rootfs.ubifs" several times. Here is the log (I shortened the loading
>> process bar):
> [...]
>>      => tftp rootfs.ubifs
>>      using ci_udc, OUT ep- IN ep- STATUS ep-
>>      MAC 00:19:b8:00:00:02
>>      HOST MAC 00:19:b8:00:00:01
>>      high speed config #1: 2 mA, Ethernet Gadget, using CDC Ethernet
>>      USB network up!
>>      Using usb_ether device
>>      TFTP from server 10.0.0.1; our IP address is 10.0.0.2
>>      Filename 'rootfs.ubifs'.
>>      Load address: 0x40008000
>>      Loading: [snip]
>>        ##############################################################T ###
>>            [snip]
>>            1.7 MiB/s
> Here it's 1.7MB/s ...
Sometimes I get a timeout "#T " while loading, which slows down the 
transfer rate. It is not always the case.
>
>>      done
>>      Bytes transferred = 13205504 (c98000 hex)
>>      => tftp rootfs.ubifs
>>      using ci_udc, OUT ep- IN ep- STATUS ep-
>>      MAC 00:19:b8:00:00:02
>>      HOST MAC 00:19:b8:00:00:01
>>      high speed config #1: 2 mA, Ethernet Gadget, using CDC Ethernet
>>      USB network up!
>>      Using usb_ether device
>>      TFTP from server 10.0.0.1; our IP address is 10.0.0.2
>>      Filename 'rootfs.ubifs'.
>>      Load address: 0x40008000
>>      Loading:
>>      #################################################################
>>            [snip]
>>            5.6 MiB/s
> ... and here it's 5.6 MB/s ... that's weird.
>
> [...]
>
>> The error always appears after calling tftp the third time! The first
>> two runs work fine, but the third one always fails. I run this test
>> about 20 times.
> And finally, what is the contents of 'rootfs.ubifs' ?
It's an rootf ubifs filesystem. I also tested other files. One small 
u-boot.sb file with a filesize of 400 KB and a 62 MB compressed ubuntu 
core file (ubuntu-core-14.04-core.ext4.gz). For all I get the same result.
>
> Best regards,