Xen devel - Sep 2005 - USB frontend and backend disappeared from latest unstable tree

Hi Folks,
I just did a "hg pull -u" on my unstable tree and realized that the
USB
virtualization related code disappeared (e.g.
/linux-2.6-xen-sparse/drivers/xen/usbfront/
and /linux-2.6-xen-sparse/drivers/xen/usbback/ directories are not present).
I traced the changes to the changeset 7027:06d84bf87159 which was committed
on september 22 by djm@kirby.fc.hp.com.

Could someone please tell me if this was intended (and why?) or is it a
mistake?

Thanks,
Sanjay


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>  I just did a "hg pull -u" on my unstable tree and realized that
the
> USB virtualization related code disappeared (e.g. 
> /linux-2.6-xen-sparse/drivers/xen/usbfront/ and 
> /linux-2.6-xen-sparse/drivers/xen/usbback/ directories are not 
> present). I traced the changes to the changeset 7027:06d84bf87159 
> which was committed on september 22 by djm@kirby.fc.hp.com.
>
>  Could someone please tell me if this was intended (and why?) or is it 
> a mistake?
Yes, it didn''t work at all. There''s a new driver being
developed out of
tree I believe, by IBM.

  -- Keir


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Yes, I''m still working on this.  I had the 2.6 driver working nicely
prior to the xend and subsequent xenbus changes now I''m updating to use
xenbus.

I have defined a higher level inter-domain communications API similar to
the one described in this thread on inter-domain comms (my API is a bit
different and I''ve only defined the bits actually required for my USB
driver):
http://lists.xensource.com/archives/html/xen-devel/2005-05/threads.html#00159.

I''ve now ported my FE and BE USB drivers to this new API and
I''ve just
started implementing the API using xenbus and grant tables.

I was hoping I would have it working this week but I think it''s going
to
take a bit longer.

I''m not intentionally working out of tree, I just wanted to submit
something that worked and I''ve been playing catch-up with the xenbus
changes.

Harry.

On Thu, 2005-09-29 at 23:30 +0100, Keir Fraser wrote:
> >  I just did a "hg pull -u" on my unstable tree and realized
that the
> > USB virtualization related code disappeared (e.g. 
> > /linux-2.6-xen-sparse/drivers/xen/usbfront/ and 
> > /linux-2.6-xen-sparse/drivers/xen/usbback/ directories are not 
> > present). I traced the changes to the changeset 7027:06d84bf87159 
> > which was committed on september 22 by djm@kirby.fc.hp.com.
> >
> >  Could someone please tell me if this was intended (and why?) or is it
> > a mistake?
> 
> Yes, it didn''t work at all. There''s a new driver being
developed out of
> tree I believe, by IBM.
> 
>   -- Keir
> 
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
> 
-- 
Harry Butterworth <harry@hebutterworth.freeserve.co.uk>


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Hiya all,

Should have posted on this thread ages ago but was tied up with other stuff.
> >  Could someone please tell me if this was intended (and why?) or is it
> > a mistake?
>
> Yes, it didn''t work at all. There''s a new driver being
developed out of
> tree I believe, by IBM.
Sanjay: if you really want to play with it, you''d need to look at an
older
version of xen-unstable.  The implementation worked pretty nicely (supported 
isochronous devices like webcams before VMWare did, which I was rather 
pleased about) - unfortunately it became impossible to maintain after 2.4 
dom0 support was withdrawn.

Harry is working on a port to Linux 2.6.

Cheers,
Mark

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