Re: [PATCH 2/2] staging: hv_uio userspace i/o driver for Hyper-V VMbus

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On Fri, Oct 14, 2016 at 07:06:47PM +0200, Greg KH wrote:
> On Fri, Oct 14, 2016 at 09:43:52AM -0700, Stephen Hemminger wrote:
> > From: Stephen Hemminger <sthemmin@xxxxxxxxxxxxx>
> > 
> > This is a staging driver to enable userspace networking on VMBus.
> > Hyper-V does not support guest IOMMU, so this is an alternative
> > to allow for applications using DPDK.
> > 
> > This is based on earlier GPL driver developed for DPDK by Brocade.
> > 
> > Signed-off-by: Stephen Hemminger <sthemmin@xxxxxxxxxxxxx>
> > ---
> >  drivers/hv/connection.c         |   1 +
> >  drivers/staging/Kconfig         |   2 +
> >  drivers/staging/Makefile        |   1 +
> >  drivers/staging/hv_uio/Kconfig  |   6 ++
> >  drivers/staging/hv_uio/Makefile |   4 +
> >  drivers/staging/hv_uio/hv_uio.c | 222 ++++++++++++++++++++++++++++++++++++++++
> 
> Why staging?  If you do this, I need a TODO file to list what needs to
> be done to it in order to get it out of staging...

To follow up on this, I don't see anything obvious about why it needs to
be a staging driver.  Looks tiny and simple to me for a UIO driver.  All
of the "real work" needs to happen in DPDK, somehow, have fun with that!

greg k-h
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