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465d7de5a9
Remove the --usim-test option: to my knowledge, it's not used by users, and is misleadingly placed in various places where there should not be a difference w.r.t. USIM configuration. When making the changes, I assumed that --usim-test would be 0 (the default), which is the case in all executables when not specified in options except for the nr_dlsim, nr_pbchsmi, nr_ulsim simulators. The only exception is the initialization of PDCP from the MAC, which is not correct (the PDCP is in the CU, so it does not make sense to call it from the MAC which is in the DU). Instead, always initialize from main, even in the NSA case (NSA was covered by the incorrect initialization from MAC). This in turn let to some more cleanup around function du_rlc_data_req(). After receiving GTP packets at the DU, they were given to the PDCP to enqueue the packet at RLC. This does not work anymore, since the PDCP is not initialized; it also does not seem necessary, as this enqueue functionality is necessary to decouple PDCP and RLC to avoid deadlocks in monolithic, but in split-mode, this cannot happen. Instead, call directly into the RLC when receiving GTP packets.