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

Jörg Krause
2014-06-28T20:53:38Z

On 06/28/2014 10:45 PM, Marek Vasut wrote:
> On Saturday, June 28, 2014 at 10:37:35 PM, J?rg 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,