Hi Ti Folks,
I have go through UG of SA and PA, search e2e forum. But still have questions:)
My main focus is LTE data and control path. There are so much things that PA&SA can do for GTPU packet and PDCP PDU. Since then i have to figure out how much i can benefit from these HW modules.
Consider RX path(from IP): By configuring LUT1 and LUT2, i am able to isolate GTPU packets to dedicated thread via QMSS queues. That means all MAC/IP/UDP/GTPU stuff done in hw. But what happens if the packet is IPSEC packet. How should i configure PA that packet enters from GbE goes through the correct path. (GTPU IPSEC packet --> GbE --> PA for classification --> SA for IPSEC dec.&auth. --> to HOST for PDCP).
What i can't see from the examples and documents is how can i configure PA&SA that travels from PA to SA and later to HOST.
There is paCmdNextRoute_t which i can't understand? Can someone explain how packet routes between modules?
Thanks, Burhan.