Add AXI stream routing?!

[stnolting]

I would like to add some "identifier" to the processor's (AXI) stream ports. Something like a source ID and a destination ID so we can talk with several data sinks/sources while still only having two physical stream channels.

I scrolled through the AXI-stream specs and I found the tid and tdest signals. However, I don not really understand them 😅

tid seems to represent some package ID or even a source ID while tdest provides a some destination routing data. Is tdest only used for interconnect-internal routing and thus, is not available on the sink side? What about tid? Is that hard-coded on the host side (just indicating the "port number")?

Maybe anyone can help me out here. 🤔