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How to use PA and SA in order to fully offload CPU?

burhan türkel
Intellectual 470 points

Hi Ti Folks,

In the given forum entry it is said that fully-offloaded PDU processing of the IPSEC-encrypted GTPU data plane is possible. I have doubt how can one configure PA&SA to do RoHC. Please confirm fully-offloaded scheme is possible in case non compression case.

http://e2e.ti.com/support/dsp/c6000_multi-core_dsps/f/639/p/264607/926245.aspx#926245

Burhan.

  • 0
    TI__Guru* 95265 points

    Yes, we only support fully offloaded GTP-U processing with no ROHC or ROHC transparent mode.

    Eric

  • 0 in reply to lding
    Intellectual 470 points

    Thank you for reply.

    I also wonder if we can take advantage of PA on tx path(from air to IP) for GTP-U/UDP/IP header bulding. If appending outer IP/UDP and GTP-U header on hardware is not possible software should handle it.

    In addition to this, will you give advice for fast path. Should we use separate QMSS queues for every GTP-U tunnel or one queue for user and a parser on the ingress side? Of course this a bit design specific question but it would be nice to have your opinion.

    Burhan.