[okl4-developer] networking on gumstix

[Jean-Christophe Dubois]

Le Saturday 23 August 2008 00:34:55 Ashish Bijlani, vous avez écrit :
> does that mean there is no virtualization support for networking in
> okl4? in tools/release_notes I could see "vnet", what's the status of
> vnet in current release of okl4?

It seems there used to be an OKL4 network device (CONFIG_IG_NET) but this one 
is broken in the actual OKL4 2.1.

> also, i change the l4linux_config_gumstix to include SMC91X, however
> upon booting wombat doesn't load the network driver. Am I missing
> anything? I'm taking about single instance of wombat here.

I am not sure about the ARM/gumstix option but on an x86 platform enabling 
pcnet32 or another driver supported by qemu does bring you the network 
connectivity (oklinux handles the network device directly).

JC

> please help.
>
> thanks,
> ashish
>
> On Fri, Aug 22, 2008 at 5:55 PM, Jean-Christophe Dubois
>
> <jcd at tribudubois.net> wrote:
> > Le Friday 22 August 2008 11:31:14 Ashish Bijlani, vous avez écrit :
> >> Hi,
> >>
> >> I'm trying to setup networking between two wombats running on emulated
> >> gumstix environment. however, i think network driver is missing in
> >> wombat code. afaik, gumstix uses smc91x driver for ethernet, right?
> >> how do i bring up networking in wombats?
> >
> > The oklinux configuration explicitly removed most/all network driver
> > support from the linux kernel. So you need to change the .config of your
> > oklinux to add support for the network device you are targeting. Then,
> > recompile the all thing.
> >
> > Now in your case with 2 oklinux running on the same hardware (it seems
> > this is what you are targeting), I guess you could run into some trouble
> > if both instances try to take control of the single network device. I
> > don't think you will succeed in making the 2 oklinux speak together
> > through the ethernet device if they are on the same gumstix ... You
> > should use the OKL4 IPC for this kind of thing.
> >
> > There might be a way to tell OKL4 to forbid hardware access for one of
> > the oklinux instance in order to give exclusive access to the device to
> > the other oklinux. At least this would allow one of the oklinux to speak
> > to the outer world.
> >
> > JC
> >
> >> Thanks,
> >> Ashish
> >>
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