[PATCH RFC v5] net: add PCINet driver

[Jan-Bernd Themann]

Hi!

Ira Snyder <iws at ovro.caltech.edu> wrote on 15.01.2009 22:40:56:

> On Thu, Jan 15, 2009 at 10:22:53PM +0100, Arnd Bergmann wrote:
> > On Thursday 15 January 2009, Ira Snyder wrote:
> > > I have another question for you Arnd.
> > > 
> > > What did you use as the host and guest drivers when you ran virtio 
over
> > > PCI? Did you use two unmodified instances of virtio_net (one on 
host,
> > > one on guest) for networking, or did you write new virtio drivers 
for
> > > those? How about for virtio_console (if you ran it at all).

In addition to what Arnd already told you: 
We used two (almost) unmodified instances of virtio_net. When we tested 
this
driver we modified the change_mtu function slightly as this function was 
not implemented
properly (for our purpose) at that time. 

> > 
> > Jan-Bernd may be able to tell you details about this, and send you the
> > driver code that his interns implemented for it.
> > This was only doing virtio_net between two machines using MMIO 
transfers,
> > i.e. the DMA engine was unused, but there was a mailbox interrupt (if 
you
> > have one of these, you won't need MSI, btw -- just write a DMA to it).
> > 
> 
> Thanks. Jan-Bernd, I'm looking forward to any input you have.
> 

Regards,
Jan-Bernd
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