From 9e1f39ffec0f82c28f2e6b51d6f43752bf179c0e Mon Sep 17 00:00:00 2001
From: Y_Tomita <tomita.y@jp.fujitsu.com>
Date: Wed, 24 Oct 2018 18:58:05 +0900
Subject: [PATCH] Add comments.

---
 openair2/LAYER2/MAC/ue_procedures.c | 4 ++++
 targets/RT/USER/lte-enb.c           | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/openair2/LAYER2/MAC/ue_procedures.c b/openair2/LAYER2/MAC/ue_procedures.c
index 12fbef7d80..29579517dd 100755
--- a/openair2/LAYER2/MAC/ue_procedures.c
+++ b/openair2/LAYER2/MAC/ue_procedures.c
@@ -2563,6 +2563,10 @@ ue_scheduler(const module_id_t module_idP,
     //Rrc_xface->Frame_index=Mac_rlc_xface->frameP;
     //if (subframe%5 == 0)
     //LG#ifdef EXMIMO
+
+    // data to/from NETLINK is treated in pdcp_run.
+    // one socket is used in multiple UE's L2 FAPI simulator and
+    // only first UE need to do this.
     if(module_idP == 0){
       pdcp_run(&ctxt);
     }
diff --git a/targets/RT/USER/lte-enb.c b/targets/RT/USER/lte-enb.c
index 17d3cd63d4..d6aeb99340 100755
--- a/targets/RT/USER/lte-enb.c
+++ b/targets/RT/USER/lte-enb.c
@@ -1002,7 +1002,7 @@ void init_eNB_proc(int inst) {
       pthread_create( &proc_rxtx[0].pthread_rxtx, attr0, eNB_thread_rxtx, proc );
       pthread_create( &proc_rxtx[1].pthread_rxtx, attr1, tx_thread, proc);
     }
-    else if (nfapi_mode == 2) {
+    else if (nfapi_mode == 2) { // this is neccesary in VNF or L2 FAPI simulator.
       pthread_create( &proc_rxtx[0].pthread_rxtx, attr0, eNB_thread_rxtx, &proc_rxtx[0] );
       pthread_create( &proc_rxtx[1].pthread_rxtx, attr1, eNB_thread_rxtx, &proc_rxtx[1] );
     }
-- 
2.26.2