Re: [lwip-users] pbuf chain and packet queue

[Bernhard 'Gustl' Bauer]

Simon Goldschmidt schrieb:
> It might be a hybrid: A pbuf chain made up of multiple packets. If
> enabled, lwIP queues out-of-sequence packets and chains the pbufs
> together passing them to your application as one when the data gets
> in-sequence due to missing packets being received.
>
> So if you have the OOSEQ code turned on, your application must still
> handle pbuf chains correctly even if your netif driver doesn't create
> them.

OOSEQ is turned on.

I have a few questions that will help me to understand chaining of pbufs 
better:

Is tot_len always equal the size of all chained pbufs from this pbuf to 
the end?

Is it correct that splitting one packet on several pbufs can only be 
done by the CS8900 driver?

Is there a need to treat a packet queue different than a pbuf chain (of 
one packet)?

Thanks Gustl