Regarding ARM on Genode virt_qemu_arm_v8a

[Divya Sharma]

As you said i launched only  [init -> runtime -> virtio_mmio_nic]
component,but still the runtime version is not getting the mac address,as
seen in the log ,don't why.Is there anything left for routing the uplink
request from nic driver to virtio_mmio_nic.

kindly guide me on it.


Divya.



On Sat, Mar 11, 2023 at 6:48 PM Colin Parker <cvparker at gmail.com> wrote:

> Divya,
>
> On Sat, Mar 11, 2023 at 6:19 AM Divya Sharma <divyasharma26546 at gmail.com>
> wrote:
>
>> Thanks Martin and Colin for your help.
>> I configured the virtio_mmio_nic configuration for virt_qemu_arm_v8a
>> using [1] archive?
>> But after that i got stuck in the error
>> [init] Warning: drivers: no route to service "Uplink" (label="drivers ->
>> virtio_mmio_nic -> ")
>> [init -> drivers -> virtio_mmio_nic] Error: Uplink-session creation
>> failed (ram_quota=3538944, cap_quota=8, mac_address="52:54:00:12:34:56",
>> tx_buf_size=1638400, rx_buf_size=1638400, label="")
>>
>> I believe this happens because your [init -> drivers -> virtio_mmio_nic]
> driver can't access the Uplink service provided by  [init -> runtime ->
> nic_router].
> However, if you look at your log file, there is also a component [init ->
> runtime -> virtio_mmio_nic]. If you don't launch [init -> drivers ->
> virtio_mmio_nic] and only launch [init -> runtime -> virtio_mmio_nic], the
> latter component might be able to find the route to [init -> runtime ->
> nic_router]. I see that the "drivers" version is getting a MAC address
> while the "runtime" version is not, possibly this is because the first one
> to launch claims a resource and prevents the other from accessing it
> (that's a wild guess though). In my Sculpt system, the net drivers are
> launched by "runtime" not "drivers", so the routing there should
> (hopefully) be all set up. Another option might be to provide some routing
> rule in the "init" component to route Uplink requests from "drivers" to
> "runtime".
>
>
>
>> Saying that there is no route for Uplink service because I am not able to
>> set up that, I also tried to find those scripts mentioned by Colin but I
>> could not.
>> I also went for the following command to find the routes but I could not
>> find the script that needed the modification.
>>
>
> I'm not sure it's necessary to do more on this in your configuration,
> since the component seems to get launched by "runtime" somehow anyway.
>
> Hope it helps.
>
> -CP
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