Re: porting pvusb drivers to pvops kernel

[Noboru Iwamatsu <n_iwamatsu@jp.fujitsu.com>]

Hi,

I was preparing to post the pvops version of pvusb,
but, it has not finished and is still pending.

I don't have enough time for it for the time being.
I hope I can post it until the next xen release.

If someone want to work for it, I'm okay with that.

 > I'm afraid i can't code that well, but i still wonder if some bits 
could be shared with the usb over ip project 
(http://usbip.sourceforge.net/#about).
 > Where the (tcp/)ip could be swapped for a more xen specific transport 
protocol if required. It has had it ups and downs in development 
activity and I haven't used it for a long time, and it's in staging tree 
of mainline kernel for a while now.

Internal of the Pvusb and the usbip are very different
except for the point that they use usb drivers interface.

I don't think it's good idea to share the code.

Thanks,
Noboru

Sander Eikelenboom wrote:
> Tuesday, August 17, 2010, 9:00:41 PM, you wrote:
>
>> On Mon, Jun 07, 2010 at 05:59:16PM +0300, Pasi Kärkkäinen wrote:
>>> On Mon, Apr 12, 2010 at 04:05:22PM +0300, Pasi Kärkkäinen wrote:
>>>> On Fri, Mar 19, 2010 at 01:19:08AM +0200, Pasi Kärkkäinen wrote:
>>>>> On Fri, Mar 05, 2010 at 09:29:14AM +0900, Noboru Iwamatsu wrote:
>>>>>> Hi,
>>>>>>
>>>>>>> On 03/04/2010 11:24 AM, Sander Eikelenboom wrote:
>>>>>>>> Are there any signs of pv-usb support coming ?
>>>>>>>
>>>>>>> I have not seen any work in that area.
>>>>>>>
>>>>>>
>>>>>> In the jump between 2.6.18 and current kernel,
>>>>>> several important changes are required for handling
>>>>>> the urbs and its buffers.
>>>>>> Because, the manner of the host controller and the
>>>>>> urb's behavior have been modified on the upstream.
>>>>>>
>>>>>> I'm now working on it, I hope I can post it in late
>>>>>> this month.
>>>>>>
>>>>>
>>>>> Btw Novell seems to have a forward-port of the pvusb stuff
>>>>> to their 2.6.32 xenlinux kernel (non pvops).
>>>>>
>>>>> See:
>>>>> http://lists.xensource.com/archives/html/xen-devel/2010-03/msg00723.html
>>>>>
>>>>> Dunno if it helps with the pvops port though :)
>>>>>
>>>>
>>>> Noboru: Did you have time to take a look at this?
>>>>
>>>
>>> I added this task to:
>>> http://wiki.xensource.com/xenwiki/XenDevelopmentProjects
>>>
>>> "Porting Xen PVUSB drivers to pvops kernel"
>>>
>
>> Anyone interested in porting pvusb drivers?
>
>> -- Pasi
>
> I'm afraid i can't code that well, but i still wonder if some bits could be shared with the usb over ip project (http://usbip.sourceforge.net/#about).
> Where the (tcp/)ip could be swapped for a more xen specific transport protocol if required. It has had it ups and downs in development activity and I haven't used it for a long time, and it's in staging tree of mainline kernel for a while now.
>
> --
> Sander
>
>
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