From 4d05f4b288ef204a42cd1eb6b6d5ffe877aee7ac Mon Sep 17 00:00:00 2001
From: Sakthivel Velumani <velumani@eurecom.fr>
Date: Thu, 1 Jul 2021 15:22:10 +0200
Subject: [PATCH] Blocking nr_scheduler_response untill L1 tx finishes

---
 openair1/SCHED_NR/fapi_nr_l1.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/openair1/SCHED_NR/fapi_nr_l1.c b/openair1/SCHED_NR/fapi_nr_l1.c
index f04401aac5..bac52845ff 100644
--- a/openair1/SCHED_NR/fapi_nr_l1.c
+++ b/openair1/SCHED_NR/fapi_nr_l1.c
@@ -178,6 +178,13 @@ void nr_schedule_response(NR_Sched_Rsp_t *Sched_INFO){
 
   gNB         = RC.gNB[Mod_id];
 
+  // we wait for the L1 Tx processing to finish before copying MAC PDUs to PHY
+  {
+    notifiedFIFO_elt_t *res;
+    res = pullTpool(gNB->resp_L1_tx, gNB->threadPool);
+    pushNotifiedFIFO(gNB->resp_L1_tx,res);
+  }
+
   uint8_t number_dl_pdu             = (DL_req==NULL) ? 0 : DL_req->dl_tti_request_body.nPDUs;
   uint8_t number_ul_dci_pdu         = (UL_dci_req==NULL) ? 0 : UL_dci_req->numPdus;
   uint8_t number_ul_tti_pdu         = (UL_tti_req==NULL) ? 0 : UL_tti_req->n_pdus;