Use two queues for PRACH processing:
- prach_ru_queue: pass jobs from TX thread (scheduler) to RU thread. For
split 8, the RU thread itself handles PRACH processing; for split 7.2,
it is the library that is responsible for handling PRACH messages (see
oran_fh_if4p5_south_in())
- prach_l1rx_queue: after jobs have been handled in RU thread, use this
queue to pass jobs to the RX thread. There, preamble detection is
performed, and RACH.indication FAPI messages are filled if a preamble
has been detected.
Together, these queues replace a linear search in a global array that
has been modified by three threads at the same time. The design ensures
that access now is thread-safe, and with less overhead.
Signed-off-by: Robert Schmidt <robert.schmidt@openairinterface.org>
Robert Schmidt
03096dd495