Using lagg

[Dominic Froud]

On 25/07/2014 23:32, Sridhar Iyer wrote:
> I was looking at sys/net/if_lagg.c, and wanted to know the usage of
> functions such as lagg_ioctl(), lagg_input() etc.
>
> Regards,
>
> Sridhar
>

Those functions are part of the implementation of the lagg driver, 
internal to the kernel. They generally mirror similarly-named functions 
for all network drivers.

xxx_ioctl() is for processing ioctl() calls from userland
xxx_input() is for processing packets that arrive at the interface
xxx_start() is for processing packets that are outbound from the interface
xxx_create() for creating a new lagg interface
xxx_attach() for attaching a laggport to a lagg interface
and so on...

If you want to programmatically attach, configure, modify, destroy lagg 
interfaces then you have choices like:

shell scripts
C code that performs the desired functions in the same way as ifconfig 
(userland)

I can't see any immediate reason why you'd call functions like 
lagg_input() directly and you would have to be kernel-side to do so.

What are you trying to achieve?

Hope this helps!

Dominic