add ldpc offload cmdline option for softmodem and remove crc drop flag

executables/nr-gnb.c

@@ -507,6 +507,7 @@ void init_eNB_afterRU(void) {
   for (inst=0; inst<RC.nb_nr_inst; inst++) {
     LOG_I(PHY,"RC.nb_nr_CC[inst:%d]:%p\n", inst, RC.gNB[inst]);
     gNB                                  =  RC.gNB[inst];
+    gNB->ldpc_offload_flag = ldpc_offload_flag;
     phy_init_nr_gNB(gNB,0,0);
 
     // map antennas and PRACH signals to gNB RX

executables/nr-softmodem-common.h

@@ -97,7 +97,7 @@
 #define CONFIG_HLP_WORKER_CMD    "two option for worker 'WORKER_DISABLE' or 'WORKER_ENABLE'\n"
 #define CONFIG_HLP_USRP_THREAD   "having extra thead for usrp tx\n"
 #define CONFIG_HLP_DISABLNBIOT   "disable nb-iot, even if defined in config\n"
-
+#define CONFIG_HLP_LDPC_OFFLOAD  "enable LDPC offload\n"
 #define CONFIG_HLP_USRP_ARGS     "set the arguments to identify USRP (same syntax as in UHD)\n"
 
 #define CONFIG_HLP_FLOG          "Enable online log \n"

executables/nr-softmodem.h

@@ -29,6 +29,7 @@
     {"U" ,                    CONFIG_HLP_ULBM_PHYTEST,0,                u64ptr:&ulsch_slot_bitmap,          defintval:0,                   TYPE_UINT64, 0},        \
     {"usrp-tx-thread-config", CONFIG_HLP_USRP_THREAD, 0,                iptr:&usrp_tx_thread,               defstrval:0,                   TYPE_INT,    0},        \
     {"uecap_file",            CONFIG_HLP_UECAP_FILE,  0,                strptr:(char **)&uecap_file,        defstrval:"./uecap.xml",       TYPE_STRING, 0},        \
+    {"ldpc-offload-enable",   CONFIG_HLP_LDPC_OFFLOAD, 0,               iptr:&ldpc_offload_flag,          defstrval:0,                   TYPE_INT,    0},        \
     {"s" ,                    CONFIG_HLP_SNR,         0,                dblptr:&snr_dB,                     defdblval:25,                  TYPE_DOUBLE, 0},        \
   }
 
@@ -42,6 +43,7 @@ extern uint32_t target_ul_bw;
 extern uint64_t dlsch_slot_bitmap;
 extern uint64_t ulsch_slot_bitmap;
 extern char *uecap_file;
+extern uint32_t ldpc_offload_flag;
 
 // In nr-gnb.c
 extern void init_gNB(int single_thread_flag,int wait_for_sync);

executables/softmodem-common.c

@@ -46,7 +46,7 @@ static softmodem_params_t softmodem_params;
 char *parallel_config=NULL;
 char *worker_config=NULL;
 int usrp_tx_thread = 0;
-
+uint32_t ldpc_offload_flag=0;
 uint8_t nfapi_mode=0;
 
 static mapping softmodem_funcs[] = MAPPING_SOFTMODEM_FUNCTIONS;

executables/softmodem-common.h

@@ -269,6 +269,7 @@ extern int usrp_tx_thread;
 extern uint16_t sl_ahead;
 extern uint16_t sf_ahead;
 extern volatile int  oai_exit;
+extern uint32_t ldpc_offload_flag;
 
 void tx_func(void *param);
 void rx_func(void *param);

openair1/PHY/CODING/nrLDPC_decoder/nrLDPC_decoder_offload.c

@@ -827,7 +827,7 @@ set_ldpc_dec_op(struct rte_bbdev_dec_op **ops, unsigned int n,
 		ops[i]->ldpc_dec.n_cb = p_offloadParams->n_cb;
 		ops[i]->ldpc_dec.iter_max = 20; 
 		ops[i]->ldpc_dec.rv_index = p_offloadParams->rv; 
-		ops[i]->ldpc_dec.op_flags = RTE_BBDEV_LDPC_ITERATION_STOP_ENABLE|RTE_BBDEV_LDPC_INTERNAL_HARQ_MEMORY_IN_ENABLE|RTE_BBDEV_LDPC_INTERNAL_HARQ_MEMORY_OUT_ENABLE|RTE_BBDEV_LDPC_CRC_TYPE_24B_DROP; 
+		ops[i]->ldpc_dec.op_flags = RTE_BBDEV_LDPC_ITERATION_STOP_ENABLE|RTE_BBDEV_LDPC_INTERNAL_HARQ_MEMORY_IN_ENABLE|RTE_BBDEV_LDPC_INTERNAL_HARQ_MEMORY_OUT_ENABLE; //|RTE_BBDEV_LDPC_CRC_TYPE_24B_DROP; 
 		ops[i]->ldpc_dec.code_block_mode = 1; //ldpc_dec->code_block_mode;
 		
 		ops[i]->ldpc_dec.harq_combined_input.offset =r*1024*32;