octeon-usb and dwc2 in staging are for the same hw

Aaro Koskinen aaro.koskinen at iki.fi
Fri Aug 16 21:07:43 UTC 2013


On Fri, Aug 16, 2013 at 08:51:57PM +0000, Paul Zimmerman wrote:
> > From: Aaro Koskinen [mailto:aaro.koskinen at iki.fi]
> > Sent: Friday, August 16, 2013 1:45 PM
> > 
> > On Fri, Aug 16, 2013 at 06:35:10PM +0000, Paul Zimmerman wrote:
> > > Aaro, I would ask you the same question. Is the Octeon driver fully
> > > functional? Are there any shortcomings with it that you know about?
> > 
> > I sent this driver when mainlining the support for EdgeRouter Lite
> > (http://www.ubnt.com/edgemax), and at the time I thought it was purely
> > Octeon specific HCD driver (the source code does not give much hits
> > about the actual HW block, and the vendor's GPL tar ball is my only
> > documentation). On that hardware it works well - I have run stress tests
> > with duration of couple of days with the mainline kernel and never
> > seen any stability or any other issues. But if you consider it as a
> > general purpose DWC2 driver it's probably a pile of crap, as it's full
> > Octeon-specific hacks and assumptions.
> 
> Thanks for the info.
> 
> What sort of devices have you tested it with? Keyboards and mice?
> Webcams? Speakers? Hubs? Multiple levels of hubs?

I only use it for mass storage (the disk/rootfs on EdgeRouter Lite is
behind the USB). So the stress test mentioned above was for disk I/O,
sorry for not being more specific. I have only briefly tested it with
keyboard & disk behind a hub.

A.


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