multiple devices, single driver

[Joel Nider]

Hi Christian,

Christian Helmuth <christian.helmuth at genode-labs.com> wrote on 25/10/2018 
15:41:14:

> From: Christian Helmuth <christian.helmuth at genode-labs.com>
> To: users at lists.genode.org
> Date: 25/10/2018 15:44
> Subject: Re: multiple devices, single driver
> 
> Hi,
> 
> On Thu, Oct 25, 2018 at 02:16:35PM +0200, Alexander Boettcher wrote:
> > Actually, in this case, I would not encourage to implement it in one
> > driver. The network cards are independent (as opposed for devices on a
> > ahci controller) from each other, so just start/instantiate the driver
> > two times. With that you cleanly isolate the network data.
> > 
> > For that to work, you have to configure the platform driver (the guard
> > to the PCIe bus on Genode) [0] to hand out the first driver one 
network
> > card (described as PCI bus device function) and for the second driver
> > the other network card (described by another PCI bus device function).
> 
> I actually did such a two-NICs scenario a while ago.

Thanks for the example - this is very clear.  However, its also very 
hard-coded.  Is there a way to support the two-NIC scenario without 
specifying the PCIe address?  For example, if I was using PCIe hot plug, 
or was just too lazy to reboot several times looking for the bus ID and 
re-programming the config file?

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> 
> Regards
> -- 
> Christian Helmuth
> Genode Labs
> 
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