/******************************************************************************* Eurecom OpenAirInterface 2 Copyright(c) 1999 - 2010 Eurecom This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, version 2, as published by the Free Software Foundation. This program is distributed in the hope it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. The full GNU General Public License is included in this distribution in the file called "COPYING". Contact Information Openair Admin: openair_admin@eurecom.fr Openair Tech : openair_tech@eurecom.fr Forums : http://forums.eurecom.fsr/openairinterface Address : Eurecom, 2229, route des crêtes, 06560 Valbonne Sophia Antipolis, France *******************************************************************************/ #define RLC_AM_MODULE #define RLC_AM_C //----------------------------------------------------------------------------- #include "platform_types.h" #include "platform_constants.h" //----------------------------------------------------------------------------- #if defined(ENABLE_ITTI) # include "intertask_interface.h" #endif # include "assertions.h" #include "rlc_am.h" #include "rlc_am_segment.h" #include "rlc_am_timer_poll_retransmit.h" #include "mac_primitives.h" #include "rlc_primitives.h" #include "list.h" #include "LAYER2/MAC/extern.h" #include "UTIL/LOG/log.h" #include "UL-AM-RLC.h" #include "DL-AM-RLC.h" //#define TRACE_RLC_AM_DATA_REQUEST //#define TRACE_RLC_AM_TX_STATUS //#define TRACE_RLC_AM_TX //#define TRACE_RLC_AM_RX //#define TRACE_RLC_AM_BO #define TRACE_RLC_AM_PDU 1 extern rlc_am_control_pdu_info_t g_rlc_am_control_pdu_info; //----------------------------------------------------------------------------- u32_t rlc_am_get_buffer_occupancy_in_bytes (rlc_am_entity_t *rlc_pP,frame_t frameP) { //----------------------------------------------------------------------------- u32_t max_li_overhead; u32_t header_overhead; // priority of control trafic if (rlc_pP->status_requested) { if (rlc_pP->t_status_prohibit.running == 0) { #ifdef TRACE_RLC_AM_BO if (((15 + rlc_pP->num_nack_sn*(10+1) + rlc_pP->num_nack_so*(15+15+1) + 7) >> 3) > 0) { LOG_D(RLC, "[FRAME %5u][%s][RLC_AM][MOD %u/%u][RB %u] BO : CONTROL PDU %d bytes \n", frameP, rlc_pP->module_id, rlc_pP->rb_id, ((15 + rlc_pP->num_nack_sn*(10+1) + rlc_pP->num_nack_so*(15+15+1) + 7) >> 3)); } #endif return ((15 + rlc_pP->num_nack_sn*(10+1) + rlc_pP->num_nack_so*(15+15+1) + 7) >> 3); } } // data traffic if (rlc_pP->nb_sdu_no_segmented <= 1) { max_li_overhead = 0; } else { max_li_overhead = (((rlc_pP->nb_sdu_no_segmented - 1) * 3) / 2) + ((rlc_pP->nb_sdu_no_segmented - 1) % 2); } if (rlc_pP->sdu_buffer_occupancy == 0) { header_overhead = 0; } else { header_overhead = 2; } #ifdef TRACE_RLC_AM_BO if ((rlc_pP->status_buffer_occupancy + rlc_pP->retransmission_buffer_occupancy + rlc_pP->sdu_buffer_occupancy + max_li_overhead + header_overhead) > 0) { LOG_D(RLC, "[FRAME %5u][%s][RLC_AM][MOD %u/%u][RB %u] BO : STATUS BUFFER %d bytes \n", frameP, rlc_pP->module_id, rlc_pP->rb_id, rlc_pP->status_buffer_occupancy); LOG_D(RLC, "[FRAME %5u][%s][RLC_AM][MOD %u/%u][RB %u] BO : RETRANS BUFFER %d bytes \n", frameP, rlc_pP->module_id,rlc_pP->rb_id, rlc_pP->retransmission_buffer_occupancy); LOG_D(RLC, "[FRAME %5u][%s][RLC_AM][MOD %u/%u][RB %u] BO : SDU BUFFER %d bytes + li_overhead %d bytes header_overhead %d bytes (nb sdu not segmented %d)\n", frameP, rlc_pP->module_id,rlc_pP->rb_id, rlc_pP->sdu_buffer_occupancy, max_li_overhead, header_overhead, rlc_pP->nb_sdu_no_segmented); } #endif return rlc_pP->status_buffer_occupancy + rlc_pP->retransmission_buffer_occupancy + rlc_pP->sdu_buffer_occupancy + max_li_overhead + header_overhead; } //----------------------------------------------------------------------------- void rlc_am_release (rlc_am_entity_t *rlc_pP) //----------------------------------------------------------------------------- { } //----------------------------------------------------------------------------- void config_req_rlc_am (frame_t frameP, eNB_flag_t eNB_flagP, module_id_t enb_module_idP, module_id_t ue_module_idP, rlc_am_info_t *config_am_pP, rb_id_t rb_idP, rb_type_t rb_typeP) { //----------------------------------------------------------------------------- rlc_am_entity_t *rlc = NULL; LOG_D(RLC, "[FRAME %5u][%s][RRC][MOD %u/%u][][--- CONFIG_REQ (max_retx_threshold=%d poll_pdu=%d poll_byte=%d t_poll_retransmit=%d t_reord=%d t_status_prohibit=%d) --->][RLC_AM][MOD %u/%u][RB %u]\n", frameP, ( eNB_flagP > 0) ? "eNB":"UE", enb_module_idP, ue_module_idP, config_am_pP->max_retx_threshold, config_am_pP->poll_pdu, config_am_pP->poll_byte, config_am_pP->t_poll_retransmit, config_am_pP->t_reordering, config_am_pP->t_status_prohibit, enb_module_idP, ue_module_idP, rb_idP); if (eNB_flagP) { rlc = &rlc_array_eNB[enb_module_idP][ue_module_idP][rb_idP].rlc.am; } else { rlc = &rlc_array_ue[ue_module_idP][rb_idP].rlc.am; } rlc_am_init(rlc,frameP); rlc_am_set_debug_infos(rlc, frameP, eNB_flagP, enb_module_idP, ue_module_idP, rb_idP, rb_typeP); rlc_am_configure(rlc,frameP, config_am_pP->max_retx_threshold, config_am_pP->poll_pdu, config_am_pP->poll_byte, config_am_pP->t_poll_retransmit, config_am_pP->t_reordering, config_am_pP->t_status_prohibit); } u32_t pollPDU_tab[PollPDU_pInfinity+1]={4,8,16,32,64,128,256,1024}; // What is PollPDU_pInfinity??? 1024 for now u32_t maxRetxThreshold_tab[UL_AM_RLC__maxRetxThreshold_t32+1]={1,2,3,4,6,8,16,32}; u32_t pollByte_tab[PollByte_spare1]={25,50,75,100,125,250,375,500,750,1000,1250,1500,2000,3000,10000}; // What is PollByte_kBinfinity??? 10000 for now u32_t PollRetransmit_tab[T_PollRetransmit_spare9]={5,10,15,20,25,30,35,40,45,50,55,60,65,70,75,80,85,90,95,100,105,110,115,120,125,130,135,140,145,150,155,160,165,170,175,180,185,190,195,200,205,210,215,220,225,230,235,240,245,250,300,350,400,450,500}; u32_t am_t_Reordering_tab[T_Reordering_spare1]={0,5,10,15,20,25,30,35,40,45,50,55,60,65,70,75,80,85,90,95,100,110,120,130,140,150,160,170,180,190,200}; u32_t t_StatusProhibit_tab[T_StatusProhibit_spare8]={0,5,10,15,20,25,30,35,40,45,50,55,60,65,70,75,80,85,90,95,100,105,110,115,120,125,130,135,140,145,150,155,160,165,170,175,180,185,190,195,200,205,210,215,220,225,230,235,240,245,250,300,350,400,450,500}; //----------------------------------------------------------------------------- void config_req_rlc_am_asn1 (frame_t frameP, eNB_flag_t eNB_flagP, module_id_t enb_module_idP, module_id_t ue_module_idP, struct RLC_Config__am *config_am_pP, rb_id_t rb_idP, rb_type_t rb_typeP) { //----------------------------------------------------------------------------- rlc_am_entity_t *rlc = NULL; if (eNB_flagP) { rlc = &rlc_array_eNB[enb_module_idP][ue_module_idP][rb_idP].rlc.am; } else { rlc = &rlc_array_ue[ue_module_idP][rb_idP].rlc.am; } if ((config_am_pP->ul_AM_RLC.maxRetxThreshold <= UL_AM_RLC__maxRetxThreshold_t32) && (config_am_pP->ul_AM_RLC.pollPDU<=PollPDU_pInfinity) && (config_am_pP->ul_AM_RLC.pollByteul_AM_RLC.t_PollRetransmitdl_AM_RLC.t_Reorderingdl_AM_RLC.t_StatusProhibit][RLC_AM][MOD %u/%u][RB %u]\n", frameP, (eNB_flagP) ? "eNB" : "UE", enb_module_idP, ue_module_idP, maxRetxThreshold_tab[config_am_pP->ul_AM_RLC.maxRetxThreshold], pollPDU_tab[config_am_pP->ul_AM_RLC.pollPDU], pollByte_tab[config_am_pP->ul_AM_RLC.pollByte], PollRetransmit_tab[config_am_pP->ul_AM_RLC.t_PollRetransmit], am_t_Reordering_tab[config_am_pP->dl_AM_RLC.t_Reordering], t_StatusProhibit_tab[config_am_pP->dl_AM_RLC.t_StatusProhibit], enb_module_idP, ue_module_idP, rb_idP); rlc_am_init(rlc,frameP); rlc_am_set_debug_infos(rlc, frameP, eNB_flagP, enb_module_idP, ue_module_idP, rb_idP, rb_typeP); rlc_am_configure(rlc, frameP, maxRetxThreshold_tab[config_am_pP->ul_AM_RLC.maxRetxThreshold], pollPDU_tab[config_am_pP->ul_AM_RLC.pollPDU], pollByte_tab[config_am_pP->ul_AM_RLC.pollByte], PollRetransmit_tab[config_am_pP->ul_AM_RLC.t_PollRetransmit], am_t_Reordering_tab[config_am_pP->dl_AM_RLC.t_Reordering], t_StatusProhibit_tab[config_am_pP->dl_AM_RLC.t_StatusProhibit]); } else { LOG_D(RLC, "[FRAME %5u][%s][RRC][MOD %u/%u][][--- ILLEGAL CONFIG_REQ (max_retx_threshold=%d poll_pdu=%d poll_byte=%d t_poll_retransmit=%d t_reord=%d t_status_prohibit=%d) --->][RLC_AM][MOD %u/%u][RB %u], RLC-AM NOT CONFIGURED\n", frameP, (eNB_flagP) ? "eNB" : "UE", enb_module_idP, ue_module_idP, config_am_pP->ul_AM_RLC.maxRetxThreshold, config_am_pP->ul_AM_RLC.pollPDU, config_am_pP->ul_AM_RLC.pollByte, config_am_pP->ul_AM_RLC.t_PollRetransmit, config_am_pP->dl_AM_RLC.t_Reordering, config_am_pP->dl_AM_RLC.t_StatusProhibit, enb_module_idP, ue_module_idP, rb_idP); } } //----------------------------------------------------------------------------- void rlc_am_stat_req (rlc_am_entity_t *rlc_pP, unsigned int* stat_tx_pdcp_sdu, unsigned int* stat_tx_pdcp_bytes, unsigned int* stat_tx_pdcp_sdu_discarded, unsigned int* stat_tx_pdcp_bytes_discarded, unsigned int* stat_tx_data_pdu, unsigned int* stat_tx_data_bytes, unsigned int* stat_tx_retransmit_pdu_by_status, unsigned int* stat_tx_retransmit_bytes_by_status, unsigned int* stat_tx_retransmit_pdu, unsigned int* stat_tx_retransmit_bytes, unsigned int* stat_tx_control_pdu, unsigned int* stat_tx_control_bytes, unsigned int* stat_rx_pdcp_sdu, unsigned int* stat_rx_pdcp_bytes, unsigned int* stat_rx_data_pdus_duplicate, unsigned int* stat_rx_data_bytes_duplicate, unsigned int* stat_rx_data_pdu, unsigned int* stat_rx_data_bytes, unsigned int* stat_rx_data_pdu_dropped, unsigned int* stat_rx_data_bytes_dropped, unsigned int* stat_rx_data_pdu_out_of_window, unsigned int* stat_rx_data_bytes_out_of_window, unsigned int* stat_rx_control_pdu, unsigned int* stat_rx_control_bytes, unsigned int* stat_timer_reordering_timed_out, unsigned int* stat_timer_poll_retransmit_timed_out, unsigned int* stat_timer_status_prohibit_timed_out) //----------------------------------------------------------------------------- { *stat_tx_pdcp_sdu = rlc_pP->stat_tx_pdcp_sdu; *stat_tx_pdcp_bytes = rlc_pP->stat_tx_pdcp_bytes; *stat_tx_pdcp_sdu_discarded = rlc_pP->stat_tx_pdcp_sdu_discarded; *stat_tx_pdcp_bytes_discarded = rlc_pP->stat_tx_pdcp_bytes_discarded; *stat_tx_data_pdu = rlc_pP->stat_tx_data_pdu; *stat_tx_data_bytes = rlc_pP->stat_tx_data_bytes; *stat_tx_retransmit_pdu_by_status = rlc_pP->stat_tx_retransmit_pdu_by_status; *stat_tx_retransmit_bytes_by_status = rlc_pP->stat_tx_retransmit_bytes_by_status; *stat_tx_retransmit_pdu = rlc_pP->stat_tx_retransmit_pdu; *stat_tx_retransmit_bytes = rlc_pP->stat_tx_retransmit_bytes; *stat_tx_control_pdu = rlc_pP->stat_tx_control_pdu; *stat_tx_control_bytes = rlc_pP->stat_tx_control_bytes; *stat_rx_pdcp_sdu = rlc_pP->stat_rx_pdcp_sdu; *stat_rx_pdcp_bytes = rlc_pP->stat_rx_pdcp_bytes; *stat_rx_data_pdus_duplicate = rlc_pP->stat_rx_data_pdus_duplicate; *stat_rx_data_bytes_duplicate = rlc_pP->stat_rx_data_bytes_duplicate; *stat_rx_data_pdu = rlc_pP->stat_rx_data_pdu; *stat_rx_data_bytes = rlc_pP->stat_rx_data_bytes; *stat_rx_data_pdu_dropped = rlc_pP->stat_rx_data_pdu_dropped; *stat_rx_data_bytes_dropped = rlc_pP->stat_rx_data_bytes_dropped; *stat_rx_data_pdu_out_of_window = rlc_pP->stat_rx_data_pdu_out_of_window; *stat_rx_data_bytes_out_of_window = rlc_pP->stat_rx_data_bytes_out_of_window; *stat_rx_control_pdu = rlc_pP->stat_rx_control_pdu; *stat_rx_control_bytes = rlc_pP->stat_rx_control_bytes; *stat_timer_reordering_timed_out = rlc_pP->stat_timer_reordering_timed_out; *stat_timer_poll_retransmit_timed_out = rlc_pP->stat_timer_poll_retransmit_timed_out; *stat_timer_status_prohibit_timed_out = rlc_pP->stat_timer_status_prohibit_timed_out; } //----------------------------------------------------------------------------- void rlc_am_get_pdus (rlc_am_entity_t *rlc_pP, frame_t frameP) { //----------------------------------------------------------------------------- int display_flag = 0; // 5.1.3.1 Transmit operations // 5.1.3.1.1 // General // The transmitting side of an AM RLC entity shall prioritize transmission of RLC control PDUs over RLC data PDUs. // The transmitting side of an AM RLC entity shall prioritize retransmission of RLC data PDUs over transmission of new // AMD PDUs. switch (rlc_pP->protocol_state) { case RLC_NULL_STATE: break; case RLC_DATA_TRANSFER_READY_STATE: // TRY TO SEND CONTROL PDU FIRST if ((rlc_pP->nb_bytes_requested_by_mac > 2) && (rlc_pP->status_requested)) { // When STATUS reporting has been triggered, the receiving side of an AM RLC entity shall: // - if t-StatusProhibit is not running: // - at the first transmission opportunity indicated by lower layer, construct a STATUS PDU and deliver it to lower layer; // - else: // - at the first transmission opportunity indicated by lower layer after t-StatusProhibit expires, construct a single // STATUS PDU even if status reporting was triggered several times while t-StatusProhibit was running and // deliver it to lower layer; // // When a STATUS PDU has been delivered to lower layer, the receiving side of an AM RLC entity shall: // - start t-StatusProhibit. if (rlc_pP->t_status_prohibit.running == 0) { rlc_am_send_status_pdu(rlc_pP,frameP); mem_block_t* pdu = list_remove_head(&rlc_pP->control_pdu_list); if (pdu) { list_add_tail_eurecom (pdu, &rlc_pP->pdus_to_mac_layer); rlc_pP->status_requested = 0; rlc_am_start_timer_status_prohibit(rlc_pP,frameP); return; } } else { LOG_D(RLC, "[FRAME %5u][%s][RLC_AM][MOD %u/%u][RB %u] DELAYED SENT STATUS PDU BECAUSE T-STATUS-PROHIBIT RUNNING (TIME-OUT FRAME %5u)\n", frameP, (rlc_pP->is_enb) ? "eNB" : "UE", rlc_pP->enb_module_id, rlc_pP->ue_module_id, rlc_pP->rb_id, rlc_pP->t_status_prohibit.frame_time_out); } } /*while ((rlc_pP->nb_bytes_requested_by_mac > 0) && (stay_on_this_list)) { mem_block_t* pdu = list_get_head(&rlc_pP->control_pdu_list); if (pdu != NULL { if ( ((rlc_am_tx_control_pdu_management_t*)(pdu->data))->size <= rlc_pP->nb_bytes_requested_by_mac) { pdu = list_remove_head(&rlc_pP->control_pdu_list); #ifdef TRACE_RLC_AM_TX msg ("[FRAME %5u][%s][RLC_AM][MOD %u/%u][RB %u] SEND CONTROL PDU\n", ((rlc_am_entity_t *) rlc_pP)->module_id,((rlc_am_entity_t *) rlc_pP)->rb_id, frameP); #endif list_add_tail_eurecom (pdu, &rlc_pP->pdus_to_mac_layer); rlc_pP->nb_bytes_requested_by_mac = rlc_pP->nb_bytes_requested_by_mac - ((rlc_am_tx_control_pdu_management_t*)(pdu->data))->size; } else { stay_on_this_list = 0; } } else { stay_on_this_list = 0; } }*/ // THEN TRY TO SEND RETRANS PDU if (rlc_pP->first_retrans_pdu_sn >= 0) { rlc_am_tx_data_pdu_management_t* tx_data_pdu_management; // tx min 3 bytes because of the size of the RLC header while ((rlc_pP->nb_bytes_requested_by_mac > 2) && (rlc_pP->first_retrans_pdu_sn >= 0) && (rlc_pP->first_retrans_pdu_sn != rlc_pP->vt_s)) { tx_data_pdu_management = &rlc_pP->pdu_retrans_buffer[rlc_pP->first_retrans_pdu_sn]; if ((tx_data_pdu_management->header_and_payload_size <= rlc_pP->nb_bytes_requested_by_mac) && (tx_data_pdu_management->retx_count >= 0) && (tx_data_pdu_management->nack_so_start == 0) && (tx_data_pdu_management->nack_so_stop == 0x7FFF)) { mem_block_t* copy = rlc_am_retransmit_get_copy(rlc_pP, frameP,rlc_pP->first_retrans_pdu_sn); LOG_D(RLC, "[FRAME %5u][%s][RLC_AM][MOD %u/%u][RB %u] RE-SEND DATA PDU SN %04d %d BYTES\n", frameP, (rlc_pP->is_enb) ? "eNB" : "UE", rlc_pP->enb_module_id, rlc_pP->ue_module_id, rlc_pP->rb_id, rlc_pP->first_retrans_pdu_sn, tx_data_pdu_management->header_and_payload_size); rlc_pP->stat_tx_data_pdu += 1; rlc_pP->stat_tx_retransmit_pdu += 1; rlc_pP->stat_tx_retransmit_pdu_by_status += 1; rlc_pP->stat_tx_data_bytes += tx_data_pdu_management->header_and_payload_size; rlc_pP->stat_tx_retransmit_bytes += tx_data_pdu_management->header_and_payload_size; rlc_pP->stat_tx_retransmit_bytes_by_status += tx_data_pdu_management->header_and_payload_size; list_add_tail_eurecom (copy, &rlc_pP->pdus_to_mac_layer); rlc_pP->nb_bytes_requested_by_mac = rlc_pP->nb_bytes_requested_by_mac - tx_data_pdu_management->header_and_payload_size; tx_data_pdu_management->retx_count += 1; return; } else if ((tx_data_pdu_management->retx_count >= 0) && (rlc_pP->nb_bytes_requested_by_mac >= RLC_AM_MIN_SEGMENT_SIZE_REQUEST)) { LOG_D(RLC, "[FRAME %5u][%s][RLC_AM][MOD %u/%u][RB %u] SEND SEGMENT OF DATA PDU SN %04d MAC BYTES %d SIZE %d RTX COUNT %d nack_so_start %d nack_so_stop %04X(hex)\n", frameP, (rlc_pP->is_enb) ? "eNB" : "UE", rlc_pP->enb_module_id, rlc_pP->ue_module_id, rlc_pP->rb_id, rlc_pP->first_retrans_pdu_sn, rlc_pP->nb_bytes_requested_by_mac, tx_data_pdu_management->header_and_payload_size, tx_data_pdu_management->retx_count, tx_data_pdu_management->nack_so_start, tx_data_pdu_management->nack_so_stop); mem_block_t* copy = rlc_am_retransmit_get_subsegment(rlc_pP, frameP, rlc_pP->first_retrans_pdu_sn, &rlc_pP->nb_bytes_requested_by_mac); LOG_D(RLC, "[FRAME %5u][%s][RLC_AM][MOD %u/%u][RB %u] SEND SEGMENT OF DATA PDU SN %04d (NEW SO %05d)\n", frameP, (rlc_pP->is_enb) ? "eNB" : "UE", rlc_pP->enb_module_id, rlc_pP->ue_module_id, rlc_pP->rb_id, rlc_pP->first_retrans_pdu_sn, tx_data_pdu_management->nack_so_start); rlc_pP->stat_tx_data_pdu += 1; rlc_pP->stat_tx_retransmit_pdu += 1; rlc_pP->stat_tx_retransmit_pdu_by_status += 1; rlc_pP->stat_tx_data_bytes += (((struct mac_tb_req*)(copy->data))->tb_size); rlc_pP->stat_tx_retransmit_bytes += (((struct mac_tb_req*)(copy->data))->tb_size); rlc_pP->stat_tx_retransmit_bytes_by_status += (((struct mac_tb_req*)(copy->data))->tb_size); list_add_tail_eurecom (copy, &rlc_pP->pdus_to_mac_layer); } else { break; } // update first_retrans_pdu_sn while ((rlc_pP->first_retrans_pdu_sn != rlc_pP->vt_s) && (!(rlc_pP->pdu_retrans_buffer[rlc_pP->first_retrans_pdu_sn].flags.retransmit))) { rlc_pP->first_retrans_pdu_sn = (rlc_pP->first_retrans_pdu_sn+1) & RLC_AM_SN_MASK; LOG_D(RLC, "[FRAME %5u][%s][RLC_AM][MOD %u/%u][RB %u] UPDATED first_retrans_pdu_sn SN %04d\n", frameP, (rlc_pP->is_enb) ? "eNB" : "UE", rlc_pP->enb_module_id, rlc_pP->ue_module_id, rlc_pP->rb_id, rlc_pP->first_retrans_pdu_sn); }; display_flag = 1; if (rlc_pP->first_retrans_pdu_sn == rlc_pP->vt_s) { // no more pdu to be retransmited rlc_pP->first_retrans_pdu_sn = -1; display_flag = 0; LOG_D(RLC, "[FRAME %5u][%s][RLC_AM][MOD %u/%u][RB %u] CLEAR first_retrans_pdu_sn\n", frameP, (rlc_pP->is_enb) ? "eNB" : "UE", rlc_pP->enb_module_id, rlc_pP->ue_module_id, rlc_pP->rb_id); } if (display_flag > 0) { LOG_D(RLC, "[FRAME %5u][%s][RLC_AM][MOD %u/%u][RB %u] UPDATED first_retrans_pdu_sn %04d\n", frameP, (rlc_pP->is_enb) ? "eNB" : "UE", rlc_pP->enb_module_id, rlc_pP->ue_module_id, rlc_pP->rb_id, rlc_pP->first_retrans_pdu_sn); } return; /* ONLY ONE TB PER TTI if ((tx_data_pdu_management->retx_count >= 0) && (rlc_pP->nb_bytes_requested_by_mac < RLC_AM_MIN_SEGMENT_SIZE_REQUEST)) { #ifdef TRACE_RLC_AM_TX msg ("[FRAME %5u][%s][RLC_AM][MOD %u/%u][RB %u] BREAK LOOP ON RETRANSMISSION BECAUSE ONLY %d BYTES ALLOWED TO TRANSMIT BY MAC\n",frameP, ((rlc_am_entity_t *) rlc_pP)->module_id,((rlc_am_entity_t *) rlc_pP)->rb_id, rlc_pP->nb_bytes_requested_by_mac); #endif break; }*/ } } if ((rlc_pP->nb_bytes_requested_by_mac > 2) && (rlc_pP->vt_s != rlc_pP->vt_ms)) { rlc_am_segment_10(rlc_pP,frameP); list_add_list (&rlc_pP->segmentation_pdu_list, &rlc_pP->pdus_to_mac_layer); if (rlc_pP->pdus_to_mac_layer.head != NULL) { rlc_pP->stat_tx_data_pdu += 1; rlc_pP->stat_tx_data_bytes += (((struct mac_tb_req*)(rlc_pP->pdus_to_mac_layer.head->data))->tb_size); return; } } if ((rlc_pP->pdus_to_mac_layer.head == NULL) && (rlc_am_is_timer_poll_retransmit_timed_out(rlc_pP)) && (rlc_pP->nb_bytes_requested_by_mac > 2)) { rlc_am_retransmit_any_pdu(rlc_pP,frameP); return; } else { LOG_D(RLC, "[FRAME %5u][%s][RLC_AM][MOD %u/%u][RB %u] COULD NOT RETRANSMIT ANY PDU BECAUSE ", frameP, (rlc_pP->is_enb) ? "eNB" : "UE", rlc_pP->enb_module_id, rlc_pP->ue_module_id, rlc_pP->rb_id); if (rlc_pP->pdus_to_mac_layer.head != NULL) { LOG_D(RLC, "THERE ARE SOME PDUS READY TO TRANSMIT "); } if (!(rlc_am_is_timer_poll_retransmit_timed_out(rlc_pP))) { LOG_D(RLC, "TIMER POLL DID NOT TIMED OUT (RUNNING = %d NUM PDUS TO RETRANS = %d NUM BYTES TO RETRANS = %d) ", rlc_pP->t_poll_retransmit.running, rlc_pP->retrans_num_pdus, rlc_pP->retrans_num_bytes_to_retransmit); } if (rlc_pP->nb_bytes_requested_by_mac <= 2) { LOG_D(RLC, "NUM BYTES REQUESTED BY MAC = %d", rlc_pP->nb_bytes_requested_by_mac); } LOG_D(RLC, "\n"); } break; default: LOG_E(RLC, "[FRAME %5u][%s][RLC_AM][MOD %u/%u][RB %u] MAC_DATA_REQ UNKNOWN PROTOCOL STATE 0x%02X\n", frameP, (rlc_pP->is_enb) ? "eNB" : "UE", rlc_pP->enb_module_id, rlc_pP->ue_module_id, rlc_pP->rb_id, rlc_pP->protocol_state); } } //----------------------------------------------------------------------------- void rlc_am_rx (void *arg_pP, frame_t frameP, eNB_flag_t eNB_flagP, struct mac_data_ind data_indP) { //----------------------------------------------------------------------------- rlc_am_entity_t *rlc = (rlc_am_entity_t *) arg_pP; switch (rlc->protocol_state) { case RLC_NULL_STATE: LOG_N(RLC, "[RLC_AM %p] ERROR MAC_DATA_IND IN RLC_NULL_STATE\n", arg_pP); list_free (&data_indP.data); break; case RLC_DATA_TRANSFER_READY_STATE: rlc_am_receive_routing (rlc, frameP, eNB_flagP, data_indP); break; default: LOG_E(RLC, "[RLC_AM %p] TX UNKNOWN PROTOCOL STATE 0x%02X\n", rlc, rlc->protocol_state); } } //----------------------------------------------------------------------------- struct mac_status_resp rlc_am_mac_status_indication (void *rlc_pP, frame_t frameP, u16 tb_sizeP, struct mac_status_ind tx_statusP) { //----------------------------------------------------------------------------- struct mac_status_resp status_resp; u16_t sdu_size = 0; u16_t sdu_remaining_size = 0; s32_t diff_time=0; rlc_am_entity_t *rlc = (rlc_am_entity_t *) rlc_pP; status_resp.buffer_occupancy_in_bytes = 0; status_resp.buffer_occupancy_in_pdus = 0; status_resp.head_sdu_remaining_size_to_send = 0; status_resp.head_sdu_creation_time = 0; status_resp.head_sdu_is_segmented = 0; status_resp.rlc_info.rlc_protocol_state = rlc->protocol_state; if (rlc->last_frame_status_indication != frameP) { rlc_am_check_timer_poll_retransmit(rlc,frameP); rlc_am_check_timer_reordering(rlc,frameP); rlc_am_check_timer_status_prohibit(rlc,frameP); } rlc->last_frame_status_indication = frameP; rlc->nb_bytes_requested_by_mac = tb_sizeP; status_resp.buffer_occupancy_in_bytes = rlc_am_get_buffer_occupancy_in_bytes(rlc,frameP); if ((rlc->input_sdus[rlc->current_sdu_index].mem_block != NULL) && (status_resp.buffer_occupancy_in_bytes)) { //status_resp.buffer_occupancy_in_bytes += ((rlc_am_entity_t *) rlc)->tx_header_min_length_in_bytes; status_resp.buffer_occupancy_in_pdus = rlc->nb_sdu; diff_time = frameP - ((rlc_am_tx_sdu_management_t *) (rlc->input_sdus[rlc->current_sdu_index].mem_block->data))->sdu_creation_time; status_resp.head_sdu_creation_time = (diff_time > 0 ) ? (u32_t) diff_time : (u32_t)(0xffffffff - diff_time + frameP) ; sdu_size = ((rlc_am_tx_sdu_management_t *) (rlc->input_sdus[rlc->current_sdu_index].mem_block->data))->sdu_size; sdu_remaining_size = ((rlc_am_tx_sdu_management_t *) (rlc->input_sdus[rlc->current_sdu_index].mem_block->data))->sdu_remaining_size; status_resp.head_sdu_remaining_size_to_send = sdu_remaining_size; if (sdu_size == sdu_remaining_size) { status_resp.head_sdu_is_segmented = 0; } else { status_resp.head_sdu_is_segmented = 1; } } else { } #ifdef TRACE_RLC_AM_TX_STATUS if (tb_sizeP > 0) { LOG_D(RLC, "[FRAME %5u][%s][RLC_AM][MOD %u/%u][RB %u] MAC_STATUS_INDICATION (DATA) %d bytes -> %d bytes\n", frameP, (rlc->is_enb) ? "eNB" : "UE", rlc->enb_module_id, rlc->ue_module_id, rlc->rb_id, tb_sizeP, status_resp.buffer_occupancy_in_bytes); /*if ((tx_statusP.tx_status == MAC_TX_STATUS_SUCCESSFUL) && (tx_statusP.no_pdu)) { msg ("[FRAME %5u][%s][RLC_AM][MOD %u/%u][RB %u] MAC_STATUS_INDICATION TX STATUS SUCCESSFUL %d PDUs\n",rlc->module_id, rlc->rb_id, frameP, tx_statusP.no_pdu); } if ((tx_statusP.tx_status == MAC_TX_STATUS_UNSUCCESSFUL) && (tx_statusP.no_pdu)) { msg ("[FRAME %5u][%s][RLC_AM][MOD %u/%u][RB %u] MAC_STATUS_INDICATION TX STATUS UNSUCCESSFUL %d PDUs\n",rlc->module_id, rlc->rb_id, frameP, tx_statusP.no_pdu); }*/ } #endif return status_resp; } //----------------------------------------------------------------------------- struct mac_data_req rlc_am_mac_data_request (void *rlc_pP, frame_t frameP) { //----------------------------------------------------------------------------- struct mac_data_req data_req; rlc_am_entity_t *l_rlc_p = (rlc_am_entity_t *) rlc_pP; unsigned int nb_bytes_requested_by_mac = ((rlc_am_entity_t *) rlc_pP)->nb_bytes_requested_by_mac; #ifdef TRACE_RLC_AM_PDU rlc_am_pdu_info_t pdu_info; rlc_am_pdu_sn_10_t *rlc_am_pdu_sn_10_p; mem_block_t *tb_p; s16_t tb_size_in_bytes; int num_nack; char message_string[9000]; size_t message_string_size = 0; # if defined(ENABLE_ITTI) MessageDef *msg_p; # endif int octet_index, index; #endif rlc_am_get_pdus (rlc_pP,frameP); list_init (&data_req.data, NULL); list_add_list (&l_rlc_p->pdus_to_mac_layer, &data_req.data); //((rlc_am_entity_t *) rlc_pP)->tx_pdus += data_req.data.nb_elements; if ((nb_bytes_requested_by_mac + data_req.data.nb_elements) > 0) { LOG_D(RLC, "[FRAME %5u][%s][RLC_AM][MOD %u/%u][RB %u] MAC_DATA_REQUEST %05d BYTES REQUESTED -> %d TBs\n", frameP, (l_rlc_p->is_enb) ? "eNB" : "UE", l_rlc_p->enb_module_id, l_rlc_p->ue_module_id, nb_bytes_requested_by_mac, data_req.data.nb_elements); } data_req.buffer_occupancy_in_bytes = rlc_am_get_buffer_occupancy_in_bytes(l_rlc_p,frameP); data_req.rlc_info.rlc_protocol_state = l_rlc_p->protocol_state; #ifdef TRACE_RLC_AM_PDU if (data_req.data.nb_elements > 0) { tb_p = data_req.data.head; while (tb_p != NULL) { rlc_am_pdu_sn_10_p = (rlc_am_pdu_sn_10_t*)((struct mac_tb_req *) (tb_p->data))->data_ptr; tb_size_in_bytes = ((struct mac_tb_req *) (tb_p->data))->tb_size; if ((((struct mac_tb_req *) (tb_p->data))->data_ptr[0] & RLC_DC_MASK) == RLC_DC_DATA_PDU ) { if (rlc_am_get_data_pdu_infos(frameP,rlc_am_pdu_sn_10_p, tb_size_in_bytes, &pdu_info) >= 0) { # if defined(ENABLE_ITTI) message_string_size += sprintf(&message_string[message_string_size], "Bearer : %u\n", l_rlc_p->rb_id); message_string_size += sprintf(&message_string[message_string_size], "PDU size : %u\n", tb_size_in_bytes); message_string_size += sprintf(&message_string[message_string_size], "Header size : %u\n", pdu_info.header_size); message_string_size += sprintf(&message_string[message_string_size], "Payload size: %u\n", pdu_info.payload_size); if (pdu_info.rf) { message_string_size += sprintf(&message_string[message_string_size], "PDU type : RLC AM DATA REQ: AMD PDU segment\n\n"); } else { message_string_size += sprintf(&message_string[message_string_size], "PDU type : RLC AM DATA REQ: AMD PDU\n\n"); } message_string_size += sprintf(&message_string[message_string_size], "Header :\n"); message_string_size += sprintf(&message_string[message_string_size], " D/C : %u\n", pdu_info.d_c); message_string_size += sprintf(&message_string[message_string_size], " RF : %u\n", pdu_info.rf); message_string_size += sprintf(&message_string[message_string_size], " P : %u\n", pdu_info.p); message_string_size += sprintf(&message_string[message_string_size], " FI : %u\n", pdu_info.fi); message_string_size += sprintf(&message_string[message_string_size], " E : %u\n", pdu_info.e); message_string_size += sprintf(&message_string[message_string_size], " SN : %u\n", pdu_info.sn); if (pdu_info.rf) { message_string_size += sprintf(&message_string[message_string_size], " LSF : %u\n", pdu_info.lsf); message_string_size += sprintf(&message_string[message_string_size], " SO : %u\n", pdu_info.so); } if (pdu_info.e) { message_string_size += sprintf(&message_string[message_string_size], "\nHeader extension : \n"); for (index=0; index < pdu_info.num_li; index++) { message_string_size += sprintf(&message_string[message_string_size], " LI : %u\n", pdu_info.li_list[index]); } } message_string_size += sprintf(&message_string[message_string_size], "\nPayload : \n"); message_string_size += sprintf(&message_string[message_string_size], "------+-------------------------------------------------|\n"); message_string_size += sprintf(&message_string[message_string_size], " | 0 1 2 3 4 5 6 7 8 9 a b c d e f |\n"); message_string_size += sprintf(&message_string[message_string_size], "------+-------------------------------------------------|\n"); for (octet_index = 0; octet_index < pdu_info.payload_size; octet_index++) { if ((octet_index % 16) == 0){ if (octet_index != 0) { message_string_size += sprintf(&message_string[message_string_size], " |\n"); } message_string_size += sprintf(&message_string[message_string_size], " %04d |", octet_index); } /* * Print every single octet in hexadecimal form */ message_string_size += sprintf(&message_string[message_string_size], " %02x", pdu_info.payload[octet_index]); /* * Align newline and pipes according to the octets in groups of 2 */ } /* * Append enough spaces and put final pipe */ for (index = octet_index; index < 16; ++index) { message_string_size += sprintf(&message_string[message_string_size], " "); } message_string_size += sprintf(&message_string[message_string_size], " |\n"); msg_p = itti_alloc_new_message_sized (l_rlc_p->is_enb > 0 ? TASK_RLC_ENB:TASK_RLC_UE , RLC_AM_DATA_PDU_REQ, message_string_size + sizeof (IttiMsgText)); msg_p->ittiMsg.rlc_am_data_pdu_req.size = message_string_size; memcpy(&msg_p->ittiMsg.rlc_am_data_pdu_req.text, message_string, message_string_size); itti_send_msg_to_task(TASK_UNKNOWN, l_rlc_p->module_id + NB_eNB_INST, msg_p); # else rlc_am_display_data_pdu_infos(l_rlc_p, frameP, &pdu_info); # endif } } else { if (rlc_am_get_control_pdu_infos(rlc_am_pdu_sn_10_p, &tb_size_in_bytes, &g_rlc_am_control_pdu_info) >= 0) { tb_size_in_bytes = ((struct mac_tb_req *) (tb_p->data))->tb_size; //tb_size_in_bytes modified by rlc_am_get_control_pdu_infos! # if defined(ENABLE_ITTI) message_string_size += sprintf(&message_string[message_string_size], "Bearer : %u\n", l_rlc_p->rb_id); message_string_size += sprintf(&message_string[message_string_size], "PDU size : %u\n", tb_size_in_bytes); message_string_size += sprintf(&message_string[message_string_size], "PDU type : RLC AM DATA REQ: STATUS PDU\n\n"); message_string_size += sprintf(&message_string[message_string_size], "Header :\n"); message_string_size += sprintf(&message_string[message_string_size], " D/C : %u\n", g_rlc_am_control_pdu_info.d_c); message_string_size += sprintf(&message_string[message_string_size], " CPT : %u\n", g_rlc_am_control_pdu_info.cpt); message_string_size += sprintf(&message_string[message_string_size], " ACK_SN : %u\n", g_rlc_am_control_pdu_info.ack_sn); message_string_size += sprintf(&message_string[message_string_size], " E1 : %u\n", g_rlc_am_control_pdu_info.e1); for (num_nack = 0; num_nack < g_rlc_am_control_pdu_info.num_nack; num_nack++) { if (g_rlc_am_control_pdu_info.nack_list[num_nack].e2) { message_string_size += sprintf(&message_string[message_string_size], " NACK SN %04d SO START %05d SO END %05d", g_rlc_am_control_pdu_info.nack_list[num_nack].nack_sn, g_rlc_am_control_pdu_info.nack_list[num_nack].so_start, g_rlc_am_control_pdu_info.nack_list[num_nack].so_end); } else { message_string_size += sprintf(&message_string[message_string_size], " NACK SN %04d", g_rlc_am_control_pdu_info.nack_list[num_nack].nack_sn); } } msg_p = itti_alloc_new_message_sized (l_rlc_p->is_enb > 0 ? TASK_RLC_ENB:TASK_RLC_UE , RLC_AM_STATUS_PDU_REQ, message_string_size + sizeof (IttiMsgText)); msg_p->ittiMsg.rlc_am_status_pdu_req.size = message_string_size; memcpy(&msg_p->ittiMsg.rlc_am_status_pdu_req.text, message_string, message_string_size); itti_send_msg_to_task(TASK_UNKNOWN, l_rlc_p->module_id + NB_eNB_INST, msg_p); # endif } } tb_p = tb_p->next; } } #endif return data_req; } //----------------------------------------------------------------------------- void rlc_am_mac_data_indication (void *rlc_pP, frame_t frameP, eNB_flag_t eNB_flagP, struct mac_data_ind data_indP) { //----------------------------------------------------------------------------- rlc_am_entity_t *l_rlc_p = (rlc_am_entity_t *) rlc_pP; /*rlc_am_control_pdu_info_t control_pdu_info; int num_li; s16_t tb_size;*/ #ifdef TRACE_RLC_AM_PDU rlc_am_pdu_info_t pdu_info; rlc_am_pdu_sn_10_t *rlc_am_pdu_sn_10_p; mem_block_t *tb_p; s16_t tb_size_in_bytes; int num_nack; char message_string[7000]; size_t message_string_size = 0; # if defined(ENABLE_ITTI) MessageDef *msg_p; # endif int octet_index, index; #endif #ifdef TRACE_RLC_AM_PDU if (data_indP.data.nb_elements > 0) { tb_p = data_indP.data.head; while (tb_p != NULL) { rlc_am_pdu_sn_10_p = (rlc_am_pdu_sn_10_t*)((struct mac_tb_ind *) (tb_p->data))->data_ptr; tb_size_in_bytes = ((struct mac_tb_ind *) (tb_p->data))->size; if ((((struct mac_tb_ind *) (tb_p->data))->data_ptr[0] & RLC_DC_MASK) == RLC_DC_DATA_PDU ) { if (rlc_am_get_data_pdu_infos(frameP,rlc_am_pdu_sn_10_p, tb_size_in_bytes, &pdu_info) >= 0) { # if defined(ENABLE_ITTI) message_string_size += sprintf(&message_string[message_string_size], "Bearer : %u\n", l_rlc_p->rb_id); message_string_size += sprintf(&message_string[message_string_size], "PDU size : %u\n", tb_size_in_bytes); message_string_size += sprintf(&message_string[message_string_size], "Header size : %u\n", pdu_info.header_size); message_string_size += sprintf(&message_string[message_string_size], "Payload size: %u\n", pdu_info.payload_size); if (pdu_info.rf) { message_string_size += sprintf(&message_string[message_string_size], "PDU type : RLC AM DATA IND: AMD PDU segment\n\n"); } else { message_string_size += sprintf(&message_string[message_string_size], "PDU type : RLC AM DATA IND: AMD PDU\n\n"); } message_string_size += sprintf(&message_string[message_string_size], "Header :\n"); message_string_size += sprintf(&message_string[message_string_size], " D/C : %u\n", pdu_info.d_c); message_string_size += sprintf(&message_string[message_string_size], " RF : %u\n", pdu_info.rf); message_string_size += sprintf(&message_string[message_string_size], " P : %u\n", pdu_info.p); message_string_size += sprintf(&message_string[message_string_size], " FI : %u\n", pdu_info.fi); message_string_size += sprintf(&message_string[message_string_size], " E : %u\n", pdu_info.e); message_string_size += sprintf(&message_string[message_string_size], " SN : %u\n", pdu_info.sn); if (pdu_info.rf) { message_string_size += sprintf(&message_string[message_string_size], " LSF : %u\n", pdu_info.lsf); message_string_size += sprintf(&message_string[message_string_size], " SO : %u\n", pdu_info.so); } if (pdu_info.e) { message_string_size += sprintf(&message_string[message_string_size], "\nHeader extension : \n"); for (index=0; index < pdu_info.num_li; index++) { message_string_size += sprintf(&message_string[message_string_size], " LI : %u\n", pdu_info.li_list[index]); } } message_string_size += sprintf(&message_string[message_string_size], "\nPayload : \n"); message_string_size += sprintf(&message_string[message_string_size], "------+-------------------------------------------------|\n"); message_string_size += sprintf(&message_string[message_string_size], " | 0 1 2 3 4 5 6 7 8 9 a b c d e f |\n"); message_string_size += sprintf(&message_string[message_string_size], "------+-------------------------------------------------|\n"); for (octet_index = 0; octet_index < pdu_info.payload_size; octet_index++) { if ((octet_index % 16) == 0){ if (octet_index != 0) { message_string_size += sprintf(&message_string[message_string_size], " |\n"); } message_string_size += sprintf(&message_string[message_string_size], " %04d |", octet_index); } /* * Print every single octet in hexadecimal form */ message_string_size += sprintf(&message_string[message_string_size], " %02x", pdu_info.payload[octet_index]); /* * Align newline and pipes according to the octets in groups of 2 */ } /* * Append enough spaces and put final pipe */ for (index = octet_index; index < 16; ++index) { message_string_size += sprintf(&message_string[message_string_size], " "); } message_string_size += sprintf(&message_string[message_string_size], " |\n"); msg_p = itti_alloc_new_message_sized (l_rlc_p->is_enb > 0 ? TASK_RLC_ENB:TASK_RLC_UE , RLC_AM_DATA_PDU_IND, message_string_size + sizeof (IttiMsgText)); msg_p->ittiMsg.rlc_am_data_pdu_ind.size = message_string_size; memcpy(&msg_p->ittiMsg.rlc_am_data_pdu_ind.text, message_string, message_string_size); itti_send_msg_to_task(TASK_UNKNOWN, l_rlc_p->module_id + NB_eNB_INST, msg_p); # else rlc_am_display_data_pdu_infos(l_rlc_p, frameP, &pdu_info); # endif } } else { if (rlc_am_get_control_pdu_infos(rlc_am_pdu_sn_10_p, &tb_size_in_bytes, &g_rlc_am_control_pdu_info) >= 0) { # if defined(ENABLE_ITTI) message_string_size += sprintf(&message_string[message_string_size], "Bearer : %u\n", l_rlc_p->rb_id); message_string_size += sprintf(&message_string[message_string_size], "PDU size : %u\n", tb_size_in_bytes); message_string_size += sprintf(&message_string[message_string_size], "PDU type : RLC AM DATA IND: STATUS PDU\n\n"); message_string_size += sprintf(&message_string[message_string_size], "Header :\n"); message_string_size += sprintf(&message_string[message_string_size], " D/C : %u\n", g_rlc_am_control_pdu_info.d_c); message_string_size += sprintf(&message_string[message_string_size], " CPT : %u\n", g_rlc_am_control_pdu_info.cpt); message_string_size += sprintf(&message_string[message_string_size], " ACK_SN : %u\n", g_rlc_am_control_pdu_info.ack_sn); message_string_size += sprintf(&message_string[message_string_size], " E1 : %u\n", g_rlc_am_control_pdu_info.e1); for (num_nack = 0; num_nack < g_rlc_am_control_pdu_info.num_nack; num_nack++) { if (g_rlc_am_control_pdu_info.nack_list[num_nack].e2) { message_string_size += sprintf(&message_string[message_string_size], " NACK SN %04d SO START %05d SO END %05d", g_rlc_am_control_pdu_info.nack_list[num_nack].nack_sn, g_rlc_am_control_pdu_info.nack_list[num_nack].so_start, g_rlc_am_control_pdu_info.nack_list[num_nack].so_end); } else { message_string_size += sprintf(&message_string[message_string_size], " NACK SN %04d", g_rlc_am_control_pdu_info.nack_list[num_nack].nack_sn); } } msg_p = itti_alloc_new_message_sized (l_rlc_p->is_enb > 0 ? TASK_RLC_ENB:TASK_RLC_UE , RLC_AM_STATUS_PDU_IND, message_string_size + sizeof (IttiMsgText)); msg_p->ittiMsg.rlc_am_status_pdu_ind.size = message_string_size; memcpy(&msg_p->ittiMsg.rlc_am_status_pdu_ind.text, message_string, message_string_size); itti_send_msg_to_task(TASK_UNKNOWN, l_rlc_p->module_id + NB_eNB_INST, msg_p); # endif } } tb_p = tb_p->next; } } #endif rlc_am_rx (rlc_pP, frameP, eNB_flagP, data_indP); } //----------------------------------------------------------------------------- void rlc_am_data_req (void *rlc_pP, frame_t frameP, mem_block_t * sdu_pP) { //----------------------------------------------------------------------------- rlc_am_entity_t *rlc_p = (rlc_am_entity_t *) rlc_pP; u32_t mui; u16_t data_offset; u16_t data_size; u8_t conf; if ((rlc_p->input_sdus[rlc_p->next_sdu_index].mem_block == NULL) && (rlc_p->input_sdus[rlc_p->next_sdu_index].flags.segmented == 0) && (((rlc_p->next_sdu_index + 1) % RLC_AM_SDU_CONTROL_BUFFER_SIZE) != rlc_p->current_sdu_index)) { memset(&rlc_p->input_sdus[rlc_p->next_sdu_index], 0, sizeof(rlc_am_tx_sdu_management_t)); rlc_p->input_sdus[rlc_p->next_sdu_index].mem_block = sdu_pP; mui = ((struct rlc_am_data_req *) (sdu_pP->data))->mui; data_offset = ((struct rlc_am_data_req *) (sdu_pP->data))->data_offset; data_size = ((struct rlc_am_data_req *) (sdu_pP->data))->data_size; conf = ((struct rlc_am_data_req *) (sdu_pP->data))->conf; rlc_p->stat_tx_pdcp_sdu += 1; rlc_p->stat_tx_pdcp_bytes += data_size; rlc_p->input_sdus[rlc_p->next_sdu_index].mui = mui; rlc_p->input_sdus[rlc_p->next_sdu_index].sdu_size = data_size; //rlc_p->input_sdus[rlc_p->next_sdu_index].confirm = conf; rlc_p->sdu_buffer_occupancy += data_size; rlc_p->nb_sdu += 1; rlc_p->nb_sdu_no_segmented += 1; rlc_p->input_sdus[rlc_p->next_sdu_index].first_byte = (u8_t*)(&sdu_pP->data[data_offset]); rlc_p->input_sdus[rlc_p->next_sdu_index].sdu_remaining_size = rlc_p->input_sdus[rlc_p->next_sdu_index].sdu_size; rlc_p->input_sdus[rlc_p->next_sdu_index].sdu_segmented_size = 0; rlc_p->input_sdus[rlc_p->next_sdu_index].sdu_creation_time = frameP; rlc_p->input_sdus[rlc_p->next_sdu_index].nb_pdus = 0; rlc_p->input_sdus[rlc_p->next_sdu_index].nb_pdus_ack = 0; //rlc_p->input_sdus[rlc_p->next_sdu_index].nb_pdus_time = 0; //rlc_p->input_sdus[rlc_p->next_sdu_index].nb_pdus_internal_use = 0; rlc_p->input_sdus[rlc_p->next_sdu_index].flags.discarded = 0; rlc_p->input_sdus[rlc_p->next_sdu_index].flags.segmented = 0; rlc_p->input_sdus[rlc_p->next_sdu_index].flags.segmentation_in_progress = 0; rlc_p->input_sdus[rlc_p->next_sdu_index].flags.no_new_sdu_segmented_in_last_pdu = 0; //rlc_p->input_sdus[rlc_p->next_sdu_index].li_index_for_discard = -1; rlc_p->next_sdu_index = (rlc_p->next_sdu_index + 1) % RLC_AM_SDU_CONTROL_BUFFER_SIZE; LOG_I(RLC, "[FRAME %5u][%s][RLC_AM][MOD %u/%u][RB %u] RLC_AM_DATA_REQ size %d Bytes, NB SDU %d current_sdu_index=%d next_sdu_index=%d conf %d mui %d\n", frameP, (rlc_p->is_enb) ? "eNB" : "UE", rlc_p->enb_module_id, rlc_p->ue_module_id, rlc_p->rb_id, data_size, rlc_p->nb_sdu, rlc_p->current_sdu_index, rlc_p->next_sdu_index, conf, mui); } else { LOG_W(RLC, "[FRAME %5u][%s][RLC_AM][MOD %u/%u][RB %u] RLC_AM_DATA_REQ BUFFER FULL, NB SDU %d current_sdu_index=%d next_sdu_index=%d size_input_sdus_buffer=%d\n", frameP, (rlc_p->is_enb) ? "eNB" : "UE", rlc_p->enb_module_id, rlc_p->ue_module_id, rlc_p->rb_id, rlc_p->nb_sdu, rlc_p->current_sdu_index, rlc_p->next_sdu_index, RLC_AM_SDU_CONTROL_BUFFER_SIZE); LOG_W(RLC, " input_sdus[].mem_block=%p next input_sdus[].flags.segmented=%d\n", rlc_p->input_sdus[rlc_p->next_sdu_index].mem_block, rlc_p->input_sdus[rlc_p->next_sdu_index].flags.segmented); rlc_p->stat_tx_pdcp_sdu_discarded += 1; rlc_p->stat_tx_pdcp_bytes_discarded += ((struct rlc_am_data_req *) (sdu_pP->data))->data_size; free_mem_block (sdu_pP); #if defined(STOP_ON_IP_TRAFFIC_OVERLOAD) AssertFatal(0, "[FRAME %5u][%s][RLC_AM][MOD %u/%u][RB %u] RLC_AM_DATA_REQ size %d Bytes, SDU DROPPED, INPUT BUFFER OVERFLOW NB SDU %d current_sdu_index=%d next_sdu_index=%d \n", frameP, (rlc_p->is_enb) ? "eNB" : "UE", rlc_p->enb_module_id, rlc_p->ue_module_id, rlc_p->rb_id, data_size, rlc_p->nb_sdu, rlc_p->current_sdu_index, rlc_p->next_sdu_index); #endif } }