Hi Sven,

Thank you for your past suggestions.
We are now looking into getting BATMAN working on a Zynq-7000 Xilinx FPGA.
This FPGA hosts dual-arm A9 cores. We have successfully loaded up Ubuntu on
this platform and it is running
Linux version 4.19.0-xilinx-v2019.2 (oe-user@oe-host) (gcc version 8.2.0
(GCC))

The above line is from cat /proc/version.

Can you point me to a BATMAN installation for this OS and platform? I could
not find any resources online for this.
The way suggested by BATMAN home page does not work for some reason.

Thank you for your help.

Regards,
Charles
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-----Original Message-----
From: Sven Eckelmann <[email protected]> 
Sent: Monday, June 20, 2022 5:51 AM
To: [email protected]
Cc: [email protected]
Subject: Re: Question about batman for ARM

On Monday, 20 June 2022 12:20:19 CEST [email protected] wrote:
> Does BATMAN ADV interfaces with the radio via the network driver or 
> does BATMAN include the network driver?

As said before, it is interfacing with the generic ethernet netdev layer of
the kernel. For example in:

*
https://git.open-mesh.org/batman-adv.git/blob/caa1eb0cf7bf8ebfe43bba06b89025
2a865efa91:/net/batman-adv/hard-interface.c#l727
*
https://git.open-mesh.org/batman-adv.git/blob/caa1eb0cf7bf8ebfe43bba06b89025
2a865efa91:/net/batman-adv/send.c#l108
*
https://git.open-mesh.org/batman-adv.git/blob/caa1eb0cf7bf8ebfe43bba06b89025
2a865efa91:/net/batman-adv/hard-interface.c#l185

There are a lot of other places when it uses the abstraction interfaces of
the kernels for ethernet related communication.

For B.A.T.M.A.N. V, it is also trying to get throughput information via
various generic kernel functionality:

*
https://git.open-mesh.org/batman-adv.git/blob/caa1eb0cf7bf8ebfe43bba06b89025
2a865efa91:/net/batman-adv/bat_v_elp.c#l67

There is also one detection for wifi interfaces to decide whether broadcast
messages should be repeated or not:

*
https://git.open-mesh.org/batman-adv.git/blob/caa1eb0cf7bf8ebfe43bba06b89025
2a865efa91:/net/batman-adv/hard-interface.c#l877


> Can you provide some guidance on where the network driver or interface 
> to network driver is located within BATMAN?

It is not talking directly to the driver. It is always using abstraction
layers. Either the normal network core, ethernet or cfg80211 abstraction
interfaces. But these don't abstract the requirement for ethernet
compatibility away - the underlying device must provide this either directly
or via a wrapper. Just perform a `git grep -e ETH_ -e eth_ -e ethhdr` to see
that it is build around the concept of ethernet packets.

Also things like originators and the complete translation table only works
with ethernet addresses.

Kind regards,
        Sven

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