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Use spsc_q for SRS processing

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Use the spsc queue to pass jobs from TX thread (scheduler) to RX thread
(handling those jobs), reducing the amount spent searching for SRS jobs,
clarifying the design, and making it thread-safe.

Signed-off-by: Robert Schmidt <robert.schmidt@openairinterface.org>
This commit is contained in:
Robert Schmidt
2026-04-16 11:53:19 +02:00
parent a5696562da
commit f5989abd0d
6 changed files with 62 additions and 68 deletions
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openair1/PHY/INIT/nr_init.c
+3 -5
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@@ -419,15 +419,13 @@ void init_nr_transport(PHY_VARS_gNB *gNB)
buffer_ul_slots = (nb_ul_slots_period < slot_ahead) ? nb_ul_slots_period : slot_ahead;
gNB->max_nb_pusch = buffer_ul_slots ? MAX_MOBILES_PER_GNB * buffer_ul_slots : 1;
gNB->max_nb_srs = buffer_ul_slots ? buffer_ul_slots << 1 : 1; // assuming at most 2 SRS per slot
int max_nb_pucch = buffer_ul_slots ? MAX_MOBILES_PER_GNB * buffer_ul_slots : 1;
gNB->pucch_queue = spsc_q_alloc(max_nb_pucch, sizeof(NR_gNB_PUCCH_job_t));
gNB->pusch_queue = spsc_q_alloc(gNB->max_nb_pusch, sizeof(NR_gNB_PUSCH_job_t));
gNB->srs = (NR_gNB_SRS_t *)malloc16(gNB->max_nb_srs * sizeof(NR_gNB_SRS_t));
for (int i = 0; i < gNB->max_nb_srs; i++)
gNB->srs[i].active = 0;
int max_nb_srs = buffer_ul_slots ? buffer_ul_slots << 1 : 1; // assuming at most 2 SRS per slot
gNB->srs_queue = spsc_q_alloc(max_nb_srs, sizeof(NR_gNB_SRS_job_t));
gNB->ulsch = (NR_gNB_ULSCH_t *)malloc16(gNB->max_nb_pusch * sizeof(NR_gNB_ULSCH_t));
for (int i = 0; i < gNB->max_nb_pusch; i++) {
@@ -446,7 +444,7 @@ void reset_nr_transport(PHY_VARS_gNB *gNB)
spsc_q_free(&gNB->pucch_queue);
spsc_q_free(&gNB->pusch_queue);
free(gNB->srs);
spsc_q_free(&gNB->srs_queue);
for (int i = 0; i < gNB->max_nb_pusch; i++)
free_gNB_ulsch(&gNB->ulsch[i], fp->N_RB_UL);