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srsLTE
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Protect UE PHY SCell configuration

This commit is contained in:
Xavier Arteaga 2021-05-28 11:08:01 +02:00 committed by Xavier Arteaga
parent a7dcd629ef
commit aab2211058
1 changed files with 11 additions and 7 deletions
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18
srsue/src/phy/phy.cc
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@ -500,23 +500,27 @@ bool phy::set_scell(srsran_cell_t cell_info, uint32_t cc_idx, uint32_t earfcn)
// Set inter-frequency measurement
sfsync.set_inter_frequency_measurement(cc_idx, earfcn, cell_info);
// Reset secondary serving cell state, prevents this component carrier from executing any PHY processing
// Reset secondary serving cell state, prevents this component carrier from executing any new PHY processing. It does
// not stop any current work
common.cell_state.reset(cc_idx);
// Reset secondary serving cell configuration
for (uint32_t i = 0; i < args.nof_phy_threads; i++) {
lte_workers[i]->reset_cell_unlocked(cc_idx);
}
// Component carrier index zero should be reserved for PCell
// Send configuration to workers
cmd_worker.add_cmd([this, cell_info, cc_idx, earfcn, earfcn_is_different]() {
logger_phy.info("Setting new SCell configuration cc_idx=%d, earfcn=%d...", cc_idx, earfcn);
for (uint32_t i = 0; i < args.nof_phy_threads; i++) {
// set_cell is not protected so run when worker is finished
// set_cell is not protected so run when worker has finished to ensure no PHY processing is done at the time of
// cell setting
lte::sf_worker* w = lte_workers.wait_worker_id(i);
if (w) {
// Reset secondary serving cell configuration, this needs to be done when the sf_worker is reserved to prevent
// resetting the cell while it is working
w->reset_cell_unlocked(cc_idx);
// Set the new cell
w->set_cell_unlocked(cc_idx, cell_info);
// Release the new worker, it should not start processing until the SCell state is set to configured
w->release();
}
}