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openairinterface5g/openair2/LAYER2/RLC/AM_v9.3.0/rlc_am.c
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/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (the "License"); you may not use this file
* except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.openairinterface.org/?page_id=698
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
#define RLC_AM_MODULE 1
#define RLC_AM_C 1
//-----------------------------------------------------------------------------
#include "platform_types.h"
#include "platform_constants.h"
//-----------------------------------------------------------------------------
#if ENABLE_ITTI
# include "intertask_interface.h"
#endif
#include "assertions.h"
#include "msc.h"
#include "hashtable.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/mac_extern.h"
#include "UTIL/LOG/log.h"
#include "UL-AM-RLC.h"
#include "DL-AM-RLC.h"
//-----------------------------------------------------------------------------
uint32_t
rlc_am_get_status_pdu_buffer_occupancy(
rlc_am_entity_t * const rlc_pP){
//Compute Max Status PDU size according to what has been received and not received in the window [vrR vrMS[
// minimum header size in bits to be transmitted: D/C + CPT + ACK_SN + E1
uint32_t nb_bits_to_transmit = RLC_AM_PDU_D_C_BITS + RLC_AM_STATUS_PDU_CPT_LENGTH + RLC_AM_SN_BITS + RLC_AM_PDU_E_BITS;
mem_block_t *cursor_p = rlc_pP->receiver_buffer.head;
rlc_am_pdu_info_t *pdu_info_cursor_p = NULL;
int waited_so = 0;
rlc_sn_t sn_cursor = rlc_pP->vr_r;
rlc_sn_t sn_prev = rlc_pP->vr_r;
rlc_sn_t sn_end = rlc_pP->vr_ms;
boolean_t segment_loop_end = false;
if (sn_prev != sn_end)
{
while ((RLC_AM_DIFF_SN(sn_prev,rlc_pP->vr_r) < RLC_AM_DIFF_SN(sn_end,rlc_pP->vr_r)) && (cursor_p != NULL))
{
pdu_info_cursor_p = &((rlc_am_rx_pdu_management_t*)(cursor_p->data))->pdu_info;
sn_cursor = pdu_info_cursor_p->sn;
// Add holes between sn_prev and sn_cursor
while ((sn_prev != sn_cursor) && (sn_prev != sn_end))
{
/* Add 1 NACK_SN + E1 + E2 */
nb_bits_to_transmit += (RLC_AM_SN_BITS + (RLC_AM_PDU_E_BITS << 1));
sn_prev = RLC_AM_NEXT_SN(sn_prev);
} //end while (sn_prev != sn_cursor)
/* Handle case sn_cursor is partially received */
/* Each gap will add NACK_SN + E1 + E2 + SOStart + SOEnd */
if ((((rlc_am_rx_pdu_management_t*)(cursor_p->data))->all_segments_received == 0) && (RLC_AM_DIFF_SN(sn_cursor,rlc_pP->vr_r) < RLC_AM_DIFF_SN(sn_end,rlc_pP->vr_r)))
{
/* Check lsf */
segment_loop_end = (pdu_info_cursor_p->lsf == 1);
/* Fill for [0 SO[ if SO not null */
if (pdu_info_cursor_p->so) {
nb_bits_to_transmit += (RLC_AM_SN_BITS + (RLC_AM_PDU_E_BITS << 1) + (RLC_AM_STATUS_PDU_SO_LENGTH << 1));
waited_so = pdu_info_cursor_p->so + pdu_info_cursor_p->payload_size;
}
else {
waited_so = pdu_info_cursor_p->payload_size;
}
/* Go to next segment */
cursor_p = cursor_p->next;
if (cursor_p != NULL)
{
pdu_info_cursor_p = &((rlc_am_rx_pdu_management_t*)(cursor_p->data))->pdu_info;
}
/* Fill following gaps if any */
while (!segment_loop_end)
{
if ((cursor_p != NULL) && (pdu_info_cursor_p->sn == sn_cursor))
{
/* Check lsf */
segment_loop_end = (pdu_info_cursor_p->lsf == 1);
if (waited_so < pdu_info_cursor_p->so) {
nb_bits_to_transmit += (RLC_AM_SN_BITS + (RLC_AM_PDU_E_BITS << 1) + (RLC_AM_STATUS_PDU_SO_LENGTH << 1));
}
else {
/* contiguous segment: only update waited_so */
/* Assuming so and payload_size updated according to duplication removal done at reception ... */
waited_so += pdu_info_cursor_p->payload_size;
}
/* Go to next received PDU or PDU Segment */
cursor_p = cursor_p->next;
if (cursor_p != NULL)
{
pdu_info_cursor_p = &((rlc_am_rx_pdu_management_t*)(cursor_p->data))->pdu_info;
}
}
else
{
/* Fill last gap assuming LSF is not received */
nb_bits_to_transmit += (RLC_AM_SN_BITS + (RLC_AM_PDU_E_BITS << 1) + (RLC_AM_STATUS_PDU_SO_LENGTH << 1));
segment_loop_end = true;
}
} // end while (!segment_loop_end)
} // end if segments
else
{
/* Go to next received PDU or PDU segment with different SN */
do
{
cursor_p = cursor_p->next;
} while ((cursor_p != NULL) && (((rlc_am_rx_pdu_management_t*)(cursor_p->data))->pdu_info.sn == sn_cursor));
}
sn_prev = RLC_AM_NEXT_SN(sn_cursor);
}
} // end if (sn_prev != sn_end)
// round up to the greatest byte
return ((nb_bits_to_transmit + 7) >> 3);
}
//-----------------------------------------------------------------------------
uint32_t
rlc_am_get_buffer_occupancy_in_bytes (
const protocol_ctxt_t* const ctxt_pP,
rlc_am_entity_t * const rlc_pP)
{
// priority of control trafic
rlc_pP->status_buffer_occupancy = 0;
if ((rlc_pP->status_requested) && !(rlc_pP->status_requested & RLC_AM_STATUS_NO_TX_MASK)) {
rlc_pP->status_buffer_occupancy = rlc_am_get_status_pdu_buffer_occupancy(rlc_pP);
#if TRACE_RLC_AM_BO
LOG_D(RLC, PROTOCOL_CTXT_FMT RB_AM_FMT" BO : CONTROL PDU %d bytes \n",
PROTOCOL_RLC_AM_CTXT_ARGS(ctxt_pP,rlc_pP),
rlc_pP->status_buffer_occupancy);
#endif
}
#if TRACE_RLC_AM_BO
if ((rlc_pP->status_buffer_occupancy + rlc_pP->retrans_num_bytes_to_retransmit + rlc_pP->sdu_buffer_occupancy + max_li_overhead + header_overhead) > 0) {
LOG_D(RLC, PROTOCOL_RLC_AM_CTXT_FMT" BO : STATUS BUFFER %d bytes \n", PROTOCOL_RLC_AM_CTXT_ARGS(ctxt_pP,rlc_pP), rlc_pP->status_buffer_occupancy);
LOG_D(RLC, PROTOCOL_RLC_AM_CTXT_FMT" BO : RETRANS BUFFER %d bytes \n", PROTOCOL_RLC_AM_CTXT_ARGS(ctxt_pP,rlc_pP), rlc_pP->retrans_num_bytes_to_retransmit);
LOG_D(RLC, PROTOCOL_RLC_AM_CTXT_FMT" BO : SDU BUFFER %d bytes + li_overhead %d bytes header_overhead %d bytes (nb sdu not segmented %d)\n",
PROTOCOL_RLC_AM_CTXT_ARGS(ctxt_pP,rlc_pP),
rlc_pP->sdu_buffer_occupancy,
0,
0,
rlc_pP->nb_sdu_no_segmented);
}
#endif
return rlc_pP->status_buffer_occupancy + rlc_pP->retrans_num_bytes_to_retransmit + rlc_pP->sdu_buffer_occupancy;
}
//-----------------------------------------------------------------------------
void
rlc_am_release (
const protocol_ctxt_t* const ctxt_pP,
rlc_am_entity_t * const rlc_pP
)
{
// empty
}
//-----------------------------------------------------------------------------
void
config_req_rlc_am (
const protocol_ctxt_t* const ctxt_pP,
const srb_flag_t srb_flagP,
rlc_am_info_t * const config_am_pP,
const rb_id_t rb_idP,
const logical_chan_id_t chan_idP
)
{
rlc_union_t *rlc_union_p = NULL;
rlc_am_entity_t *l_rlc_p = NULL;
hash_key_t key = RLC_COLL_KEY_VALUE(ctxt_pP->module_id, ctxt_pP->rnti, ctxt_pP->enb_flag, rb_idP, srb_flagP);
hashtable_rc_t h_rc;
h_rc = hashtable_get(rlc_coll_p, key, (void**)&rlc_union_p);
if (h_rc == HASH_TABLE_OK) {
l_rlc_p = &rlc_union_p->rlc.am;
LOG_D(RLC,
PROTOCOL_RLC_AM_CTXT_FMT" CONFIG_REQ (max_retx_threshold=%d poll_pdu=%d poll_byte=%d t_poll_retransmit=%d t_reord=%d t_status_prohibit=%d)\n",
PROTOCOL_RLC_AM_CTXT_ARGS(ctxt_pP,l_rlc_p),
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);
rlc_am_init(ctxt_pP, l_rlc_p);
rlc_am_set_debug_infos(ctxt_pP, l_rlc_p, srb_flagP, rb_idP, chan_idP);
rlc_am_configure(ctxt_pP, l_rlc_p,
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);
} else {
LOG_E(RLC, PROTOCOL_RLC_AM_CTXT_FMT" CONFIG_REQ RLC NOT FOUND\n",
PROTOCOL_RLC_AM_CTXT_ARGS(ctxt_pP,l_rlc_p));
}
}
uint16_t pollPDU_tab[PollPDU_pInfinity+1]= {4,8,16,32,64,128,256,RLC_AM_POLL_PDU_INFINITE}; //PollPDU_pInfinity is chosen to 0xFFFF for now
uint32_t maxRetxThreshold_tab[UL_AM_RLC__maxRetxThreshold_t32+1]= {1,2,3,4,6,8,16,32};
uint32_t pollByte_tab[PollByte_spare1]= {25000,50000,75000,100000,125000,250000,375000,500000,750000,1000000,1250000,1500000,2000000,3000000,RLC_AM_POLL_BYTE_INFINITE}; // PollByte_kBinfinity is chosen to 0xFFFFFFFF for now
#if defined(Rel14)
uint32_t PollRetransmit_tab[T_PollRetransmit_spare5]= {5,10,15,20,25,30,35,40,45,50,55,60,65,70,75,80,85,90,95,100,105,110,115,120,125,130,135,140,145,150,155,160,165,170,175,180,185,190,195,200,205,210,215,220,225,230,235,240,245,250,300,350,400,450,500,800,1000,2000,4000};
uint32_t am_t_Reordering_tab[32]= {0,5,10,15,20,25,30,35,40,45,50,55,60,65,70,75,80,85,90,95,100,110,120,130,140,150,160,170,180,190,200,1600};
uint32_t t_StatusProhibit_tab[T_StatusProhibit_spare2]= {0,5,10,15,20,25,30,35,40,45,50,55,60,65,70,75,80,85,90,95,100,105,110,115,120,125,130,135,140,145,150,155,160,165,170,175,180,185,190,195,200,205,210,215,220,225,230,235,240,245,250,300,350,400,450,500,800,1000,1200,1600,2000,2400};
#else
uint32_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};
uint32_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};
uint32_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};
#endif
//-----------------------------------------------------------------------------
void config_req_rlc_am_asn1 (
const protocol_ctxt_t* const ctxt_pP,
const srb_flag_t srb_flagP,
const struct RLC_Config__am * const config_am_pP,
const rb_id_t rb_idP,
const logical_chan_id_t chan_idP)
{
rlc_union_t *rlc_union_p = NULL;
rlc_am_entity_t *l_rlc_p = NULL;
hash_key_t key = RLC_COLL_KEY_VALUE(ctxt_pP->module_id, ctxt_pP->rnti, ctxt_pP->enb_flag, rb_idP, srb_flagP);
hashtable_rc_t h_rc;
h_rc = hashtable_get(rlc_coll_p, key, (void**)&rlc_union_p);
if (h_rc == HASH_TABLE_OK) {
l_rlc_p = &rlc_union_p->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.pollByte<PollByte_spare1) &&
#if defined(Rel14)
(config_am_pP->ul_AM_RLC.t_PollRetransmit<T_PollRetransmit_spare5) &&
(config_am_pP->dl_AM_RLC.t_Reordering<32) &&
(config_am_pP->dl_AM_RLC.t_StatusProhibit<T_StatusProhibit_spare2) ) {
#else
(config_am_pP->ul_AM_RLC.t_PollRetransmit<T_PollRetransmit_spare9) &&
(config_am_pP->dl_AM_RLC.t_Reordering<T_Reordering_spare1) &&
(config_am_pP->dl_AM_RLC.t_StatusProhibit<T_StatusProhibit_spare8) ) {
#endif
MSC_LOG_RX_MESSAGE(
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RLC_ENB:MSC_RLC_UE,
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RRC_ENB:MSC_RRC_UE,
NULL,
0,
MSC_AS_TIME_FMT" "PROTOCOL_RLC_AM_MSC_FMT" CONFIG-REQ t_PollRetx %u t_Reord %u t_StatusPro %u",
MSC_AS_TIME_ARGS(ctxt_pP),
PROTOCOL_RLC_AM_MSC_ARGS(ctxt_pP, l_rlc_p),
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]);
LOG_D(RLC, PROTOCOL_RLC_AM_CTXT_FMT" CONFIG_REQ (max_retx_threshold=%d poll_pdu=%d poll_byte=%d t_poll_retransmit=%d t_reord=%d t_status_prohibit=%d)\n",
PROTOCOL_RLC_AM_CTXT_ARGS(ctxt_pP,l_rlc_p),
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]);
rlc_am_init(ctxt_pP, l_rlc_p);
rlc_am_set_debug_infos(ctxt_pP, l_rlc_p, srb_flagP, rb_idP, chan_idP);
rlc_am_configure(ctxt_pP, l_rlc_p,
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 {
MSC_LOG_RX_DISCARDED_MESSAGE(
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RLC_ENB:MSC_RLC_UE,
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RRC_ENB:MSC_RRC_UE,
NULL,
0,
MSC_AS_TIME_FMT" "PROTOCOL_RLC_AM_MSC_FMT" CONFIG-REQ",
MSC_AS_TIME_ARGS(ctxt_pP),
PROTOCOL_RLC_AM_MSC_ARGS(ctxt_pP, l_rlc_p));
LOG_D(RLC,
PROTOCOL_RLC_AM_CTXT_FMT"ILLEGAL CONFIG_REQ (max_retx_threshold=%ld poll_pdu=%ld poll_byte=%ld t_poll_retransmit=%ld t_reord=%ld t_status_prohibit=%ld), RLC-AM NOT CONFIGURED\n",
PROTOCOL_RLC_AM_CTXT_ARGS(ctxt_pP,l_rlc_p),
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);
}
} else {
LOG_E(RLC, PROTOCOL_RLC_AM_CTXT_FMT"CONFIG_REQ RLC NOT FOUND\n",
PROTOCOL_RLC_AM_CTXT_ARGS(ctxt_pP,l_rlc_p));
}
}
//-----------------------------------------------------------------------------
void rlc_am_stat_req (
const protocol_ctxt_t* const ctxt_pP,
rlc_am_entity_t * const 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 (
const protocol_ctxt_t* const ctxt_pP,
rlc_am_entity_t * const rlc_pP
)
{
//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) && !(rlc_pP->status_requested & RLC_AM_STATUS_NO_TX_MASK))) {
// 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.
rlc_am_send_status_pdu(ctxt_pP, rlc_pP);
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_AM_CLEAR_ALL_STATUS(rlc_pP->status_requested);
rlc_pP->status_buffer_occupancy = 0;
rlc_am_start_timer_status_prohibit(ctxt_pP, rlc_pP);
return;
}
}
else {
LOG_D(RLC, PROTOCOL_RLC_AM_CTXT_FMT" DELAYED SENT STATUS PDU (Available MAC Data %u)(T-PROHIBIT %u) (DELAY FLAG %u)\n",
PROTOCOL_RLC_AM_CTXT_ARGS(ctxt_pP,rlc_pP),
rlc_pP->nb_bytes_requested_by_mac,rlc_pP->t_status_prohibit.ms_time_out,(rlc_pP->status_requested & RLC_AM_STATUS_TRIGGERED_DELAYED));
}
// THEN TRY TO SEND RETRANS PDU
if ((rlc_pP->retrans_num_bytes_to_retransmit) && (rlc_pP->nb_bytes_requested_by_mac > 2)) {
/* Get 1 AM data PDU or PDU segment to retransmit */
mem_block_t* pdu_retx = rlc_am_get_pdu_to_retransmit(ctxt_pP, rlc_pP);
if (pdu_retx != NULL) {
list_add_tail_eurecom (pdu_retx, &rlc_pP->pdus_to_mac_layer);
return;
}
}
// THEN TRY TO SEND NEW DATA PDU
if ((rlc_pP->nb_bytes_requested_by_mac > 2) && (rlc_pP->sdu_buffer_occupancy) && (rlc_pP->vt_s != rlc_pP->vt_ms)) {
rlc_am_segment_10(ctxt_pP, rlc_pP);
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;
}
}
break;
default:
LOG_E(RLC, PROTOCOL_RLC_AM_CTXT_FMT" MAC_DATA_REQ UNKNOWN PROTOCOL STATE 0x%02X\n",
PROTOCOL_RLC_AM_CTXT_ARGS(ctxt_pP,rlc_pP),
rlc_pP->protocol_state);
}
}
//-----------------------------------------------------------------------------
void
rlc_am_rx (
const protocol_ctxt_t* const ctxt_pP,
void * const arg_pP,
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, PROTOCOL_RLC_AM_CTXT_FMT" ERROR MAC_DATA_IND IN RLC_NULL_STATE\n", PROTOCOL_RLC_AM_CTXT_ARGS(ctxt_pP, rlc));
list_free (&data_indP.data);
break;
case RLC_DATA_TRANSFER_READY_STATE:
rlc_am_receive_routing (ctxt_pP, rlc, data_indP);
break;
default:
LOG_E(RLC, PROTOCOL_RLC_AM_CTXT_FMT" TX UNKNOWN PROTOCOL STATE 0x%02X\n", PROTOCOL_RLC_AM_CTXT_ARGS(ctxt_pP, rlc), rlc->protocol_state);
}
}
//-----------------------------------------------------------------------------
struct mac_status_resp
rlc_am_mac_status_indication (
const protocol_ctxt_t* const ctxt_pP,
void * const rlc_pP,
const uint16_t tb_sizeP,
struct mac_status_ind tx_statusP,
const eNB_flag_t enb_flagP)
{
struct mac_status_resp status_resp;
uint16_t sdu_size = 0;
uint16_t sdu_remaining_size = 0;
int32_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;
/* TODO: remove this hack. Problem is: there is a race.
* UE comes. SRB2 is configured via message to RRC.
* At some point the RLC AM is created but not configured yet.
* At this moment (I think) MAC calls mac_rlc_status_ind
* which calls this function. But the init was not finished yet
* and we have a crash below when testing mem_block != NULL.
*/
if (rlc->input_sdus == NULL) return status_resp;
if (rlc->last_absolute_subframe_status_indication != (PROTOCOL_CTXT_TIME_MILLI_SECONDS(ctxt_pP))) {
rlc_am_check_timer_poll_retransmit(ctxt_pP, rlc);
rlc_am_check_timer_reordering(ctxt_pP, rlc);
rlc_am_check_timer_status_prohibit(ctxt_pP, rlc);
}
rlc->last_absolute_subframe_status_indication = PROTOCOL_CTXT_TIME_MILLI_SECONDS(ctxt_pP);
rlc->nb_bytes_requested_by_mac = tb_sizeP;
status_resp.buffer_occupancy_in_bytes = rlc_am_get_buffer_occupancy_in_bytes(ctxt_pP, rlc);
// For eNB scheduler : Add Max RLC header size for new PDU
// For UE : do not add RLC header part to be compliant with BSR definition in 36.321
if (enb_flagP == ENB_FLAG_YES) {
uint32_t max_li_overhead = 0;
uint32_t header_overhead = 0;
if (rlc->nb_sdu_no_segmented > 1) {
/* This computation assumes there is no SDU with size greater than 2047 bytes, otherwise a new PDU must be built except for LI15 configuration from Rel12*/
uint32_t num_li = rlc->nb_sdu_no_segmented - 1;
max_li_overhead = num_li + (num_li >> 1) + (num_li & 1);
}
if (rlc->sdu_buffer_occupancy > 0) {
header_overhead = 2;
}
status_resp.buffer_occupancy_in_bytes += (header_overhead + max_li_overhead);
}
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 = ctxt_pP->frame - ((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 ) ? (uint32_t) diff_time : (uint32_t)(0xffffffff - diff_time + ctxt_pP->frame) ;
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 {
/* Not so many possibilities ... */
/* either buffer_occupancy_in_bytes = 0 and that's it */
/* or we have segmented all received SDUs and buffer occupancy is then made of retransmissions and/or status pdu pending */
/* then consider only retransmission buffer for the specific BO values used by eNB scheduler (not used up to now...) */
if (rlc->retrans_num_bytes_to_retransmit) {
status_resp.buffer_occupancy_in_pdus = rlc->retrans_num_pdus;
status_resp.head_sdu_remaining_size_to_send = rlc->retrans_num_bytes_to_retransmit;
status_resp.head_sdu_is_segmented = 1;
}
}
#if MESSAGE_CHART_GENERATOR_RLC_MAC
MSC_LOG_RX_MESSAGE(
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RLC_ENB:MSC_RLC_UE,
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_MAC_ENB:MSC_MAC_UE,
NULL,0,
MSC_AS_TIME_FMT" "PROTOCOL_RLC_AM_MSC_FMT" STATUS-IND %u",
MSC_AS_TIME_ARGS(ctxt_pP),
PROTOCOL_RLC_AM_MSC_ARGS(ctxt_pP, rlc),
tb_sizeP);
MSC_LOG_TX_MESSAGE(
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RLC_ENB:MSC_RLC_UE,
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_MAC_ENB:MSC_MAC_UE,
NULL,0,
MSC_AS_TIME_FMT" "PROTOCOL_RLC_AM_MSC_FMT" STATUS-RESP BO:%u/n%u(%u) %s sdu remain %u",
MSC_AS_TIME_ARGS(ctxt_pP),
PROTOCOL_RLC_AM_MSC_ARGS(ctxt_pP, rlc),
status_resp.buffer_occupancy_in_bytes,
status_resp.buffer_occupancy_in_pdus,rlc->nb_sdu,
(status_resp.head_sdu_is_segmented)?"sdu seg":"sdu not seg",
status_resp.head_sdu_remaining_size_to_send);
#endif
#if TRACE_RLC_AM_TX_STATUS
if (tb_sizeP > 0) {
LOG_D(RLC, PROTOCOL_RLC_AM_CTXT_FMT" MAC_STATUS_INDICATION (DATA) %d bytes -> %d bytes\n",
PROTOCOL_RLC_AM_CTXT_ARGS(ctxt_pP,rlc_pP),
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, ctxt_pP->frame, 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,
ctxt_pP->frame, tx_statusP.no_pdu);
}*/
}
#endif
return status_resp;
}
//-----------------------------------------------------------------------------
void
rlc_am_set_nb_bytes_requested_by_mac (
void * const rlc_pP,
const tb_size_t tb_sizeP
)
{
((rlc_am_entity_t *) rlc_pP)->nb_bytes_requested_by_mac = tb_sizeP;
}
//-----------------------------------------------------------------------------
struct mac_data_req
rlc_am_mac_data_request (
const protocol_ctxt_t* const ctxt_pP,
void * const rlc_pP,
const eNB_flag_t enb_flagP
)
{
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;
#if TRACE_RLC_AM_PDU || MESSAGE_CHART_GENERATOR
rlc_am_pdu_info_t pdu_info;
rlc_am_pdu_sn_10_t *rlc_am_pdu_sn_10_p;
mem_block_t *tb_p;
tb_size_t tb_size_in_bytes;
int num_nack;
char message_string[9000];
size_t message_string_size = 0;
# if ENABLE_ITTI
MessageDef *msg_p;
# endif
int octet_index, index;
/* for no gcc warnings */
(void)num_nack;
(void)message_string;
(void)message_string_size;
(void)octet_index;
(void)index;
#endif
list_init (&data_req.data, NULL);
rlc_am_get_pdus (ctxt_pP, l_rlc_p);
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, PROTOCOL_RLC_AM_CTXT_FMT" MAC_DATA_REQUEST %05d BYTES REQUESTED -> %d TBs\n",
PROTOCOL_RLC_AM_CTXT_ARGS(ctxt_pP,l_rlc_p),
nb_bytes_requested_by_mac,
data_req.data.nb_elements);
}
if (enb_flagP) {
// redundant in UE MAC Tx processing and not used in eNB ...
data_req.buffer_occupancy_in_bytes = rlc_am_get_buffer_occupancy_in_bytes(ctxt_pP, l_rlc_p);
}
data_req.rlc_info.rlc_protocol_state = l_rlc_p->protocol_state;
#if TRACE_RLC_AM_PDU || MESSAGE_CHART_GENERATOR
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(ctxt_pP,l_rlc_p,rlc_am_pdu_sn_10_p, tb_size_in_bytes, &pdu_info) >= 0) {
#if MESSAGE_CHART_GENERATOR
message_string_size = 0;
message_string_size += sprintf(&message_string[message_string_size],
MSC_AS_TIME_FMT" "PROTOCOL_RLC_AM_MSC_FMT" DATA SN %u size %u RF %u P %u FI %u",
MSC_AS_TIME_ARGS(ctxt_pP),
PROTOCOL_RLC_AM_MSC_ARGS(ctxt_pP, l_rlc_p),
pdu_info.sn,
tb_size_in_bytes,
pdu_info.rf,
pdu_info.p,
pdu_info.fi);
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], "| HE:");
for (index=0; index < pdu_info.num_li; index++) {
message_string_size += sprintf(&message_string[message_string_size], " LI %u", pdu_info.li_list[index]);
}
}
MSC_LOG_TX_MESSAGE(
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RLC_ENB:MSC_RLC_UE,
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RLC_UE:MSC_RLC_ENB,
(char*)rlc_am_pdu_sn_10_p,
tb_size_in_bytes,
message_string);
#endif
# if ENABLE_ITTI
message_string_size = 0;
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 (ctxt_pP->enb_flag > 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, ctxt_pP->instance, msg_p);
# else
rlc_am_display_data_pdu_infos(ctxt_pP, l_rlc_p, &pdu_info);
# endif
}
} else {
if (rlc_am_get_control_pdu_infos(rlc_am_pdu_sn_10_p, &tb_size_in_bytes, &l_rlc_p->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 MESSAGE_CHART_GENERATOR
message_string_size = 0;
message_string_size += sprintf(&message_string[message_string_size],
MSC_AS_TIME_FMT" "PROTOCOL_RLC_AM_MSC_FMT" STATUS ACK_SN %u",
MSC_AS_TIME_ARGS(ctxt_pP),
PROTOCOL_RLC_AM_MSC_ARGS(ctxt_pP, l_rlc_p),
l_rlc_p->control_pdu_info.ack_sn);
for (num_nack = 0; num_nack < l_rlc_p->control_pdu_info.num_nack; num_nack++) {
if (l_rlc_p->control_pdu_info.nack_list[num_nack].e2) {
message_string_size += sprintf(&message_string[message_string_size], " NACK SN %u SO START %u SO END %u",
l_rlc_p->control_pdu_info.nack_list[num_nack].nack_sn,
l_rlc_p->control_pdu_info.nack_list[num_nack].so_start,
l_rlc_p->control_pdu_info.nack_list[num_nack].so_end);
} else {
message_string_size += sprintf(&message_string[message_string_size], " NACK SN %u",
l_rlc_p->control_pdu_info.nack_list[num_nack].nack_sn);
}
}
MSC_LOG_TX_MESSAGE(
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RLC_ENB:MSC_RLC_UE,
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RLC_UE:MSC_RLC_ENB,
(char*)rlc_am_pdu_sn_10_p,
tb_size_in_bytes,
message_string);
#endif
# if ENABLE_ITTI
message_string_size = 0;
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", l_rlc_p->control_pdu_info.d_c);
message_string_size += sprintf(&message_string[message_string_size], " CPT : %u\n", l_rlc_p->control_pdu_info.cpt);
message_string_size += sprintf(&message_string[message_string_size], " ACK_SN : %u\n", l_rlc_p->control_pdu_info.ack_sn);
message_string_size += sprintf(&message_string[message_string_size], " E1 : %u\n", l_rlc_p->control_pdu_info.e1);
for (num_nack = 0; num_nack < l_rlc_p->control_pdu_info.num_nack; num_nack++) {
if (l_rlc_p->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",
l_rlc_p->control_pdu_info.nack_list[num_nack].nack_sn,
l_rlc_p->control_pdu_info.nack_list[num_nack].so_start,
l_rlc_p->control_pdu_info.nack_list[num_nack].so_end);
} else {
message_string_size += sprintf(&message_string[message_string_size], " NACK SN %04d", l_rlc_p->control_pdu_info.nack_list[num_nack].nack_sn);
}
}
msg_p = itti_alloc_new_message_sized (ctxt_pP->enb_flag > 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, ctxt_pP->instance, msg_p);
# endif
}
}
tb_p = tb_p->next;
}
}
#endif
return data_req;
}
//-----------------------------------------------------------------------------
void
rlc_am_mac_data_indication (
const protocol_ctxt_t* const ctxt_pP,
void * const rlc_pP,
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;
int16_t tb_size;*/
#if TRACE_RLC_AM_PDU || MESSAGE_CHART_GENERATOR
rlc_am_pdu_info_t pdu_info;
rlc_am_pdu_sn_10_t *rlc_am_pdu_sn_10_p;
mem_block_t *tb_p;
sdu_size_t tb_size_in_bytes;
int num_nack;
char message_string[7000];
size_t message_string_size = 0;
# if ENABLE_ITTI
MessageDef *msg_p;
# endif
int octet_index, index;
/* for no gcc warnings */
(void)num_nack;
(void)message_string;
(void)message_string_size;
(void)octet_index;
(void)index;
#endif
(void)l_rlc_p; /* avoid gcc warning "unused variable" */
#if TRACE_RLC_AM_PDU || MESSAGE_CHART_GENERATOR
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(ctxt_pP,l_rlc_p,rlc_am_pdu_sn_10_p, tb_size_in_bytes, &pdu_info) >= 0) {
#if MESSAGE_CHART_GENERATOR
message_string_size = 0;
message_string_size += sprintf(&message_string[message_string_size],
MSC_AS_TIME_FMT" "PROTOCOL_RLC_AM_MSC_FMT" DATA SN %u size %u RF %u P %u FI %u",
MSC_AS_TIME_ARGS(ctxt_pP),
PROTOCOL_RLC_AM_MSC_ARGS(ctxt_pP, l_rlc_p),
pdu_info.sn,
tb_size_in_bytes,
pdu_info.rf,
pdu_info.p,
pdu_info.fi);
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], "| HE:");
for (index=0; index < pdu_info.num_li; index++) {
message_string_size += sprintf(&message_string[message_string_size], " LI %u", pdu_info.li_list[index]);
}
}
MSC_LOG_RX_MESSAGE(
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RLC_ENB:MSC_RLC_UE,
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RLC_UE:MSC_RLC_ENB,
(char*)rlc_am_pdu_sn_10_p,
tb_size_in_bytes,
message_string);
#endif
# if ENABLE_ITTI && TRACE_RLC_AM_PDU
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 (ctxt_pP->enb_flag > 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, ctxt_pP->instance, msg_p);
# else
rlc_am_display_data_pdu_infos(ctxt_pP, l_rlc_p, &pdu_info);
# endif
}
} else {
if (rlc_am_get_control_pdu_infos(rlc_am_pdu_sn_10_p, &tb_size_in_bytes, &l_rlc_p->control_pdu_info) >= 0) {
#if MESSAGE_CHART_GENERATOR
message_string_size = 0;
message_string_size += sprintf(&message_string[message_string_size],
MSC_AS_TIME_FMT" "PROTOCOL_RLC_AM_MSC_FMT" STATUS size ACK_SN %u",
MSC_AS_TIME_ARGS(ctxt_pP),
PROTOCOL_RLC_AM_MSC_ARGS(ctxt_pP, l_rlc_p),
l_rlc_p->control_pdu_info.ack_sn);
for (num_nack = 0; num_nack < l_rlc_p->control_pdu_info.num_nack; num_nack++) {
if (l_rlc_p->control_pdu_info.nack_list[num_nack].e2) {
message_string_size += sprintf(&message_string[message_string_size], " NACK SN %u SO START %u SO END %u",
l_rlc_p->control_pdu_info.nack_list[num_nack].nack_sn,
l_rlc_p->control_pdu_info.nack_list[num_nack].so_start,
l_rlc_p->control_pdu_info.nack_list[num_nack].so_end);
} else {
message_string_size += sprintf(&message_string[message_string_size], " NACK SN %u",
l_rlc_p->control_pdu_info.nack_list[num_nack].nack_sn);
}
}
MSC_LOG_RX_MESSAGE(
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RLC_ENB:MSC_RLC_UE,
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RLC_UE:MSC_RLC_ENB,
(char*)rlc_am_pdu_sn_10_p,
tb_size_in_bytes,
message_string);
#endif
# if ENABLE_ITTI && TRACE_RLC_AM_PDU
message_string_size = 0;
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", ((struct mac_tb_ind *) (tb_p->data))->size);
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", l_rlc_p->control_pdu_info.d_c);
message_string_size += sprintf(&message_string[message_string_size], " CPT : %u\n", l_rlc_p->control_pdu_info.cpt);
message_string_size += sprintf(&message_string[message_string_size], " ACK_SN : %u\n", l_rlc_p->control_pdu_info.ack_sn);
message_string_size += sprintf(&message_string[message_string_size], " E1 : %u\n", l_rlc_p->control_pdu_info.e1);
for (num_nack = 0; num_nack < l_rlc_p->control_pdu_info.num_nack; num_nack++) {
if (l_rlc_p->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",
l_rlc_p->control_pdu_info.nack_list[num_nack].nack_sn,
l_rlc_p->control_pdu_info.nack_list[num_nack].so_start,
l_rlc_p->control_pdu_info.nack_list[num_nack].so_end);
} else {
message_string_size += sprintf(&message_string[message_string_size], " NACK SN %04d", l_rlc_p->control_pdu_info.nack_list[num_nack].nack_sn);
}
}
msg_p = itti_alloc_new_message_sized (ctxt_pP->enb_flag > 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, ctxt_pP->instance, msg_p);
# endif
}
}
tb_p = tb_p->next;
}
}
#endif
rlc_am_rx (ctxt_pP, rlc_pP, data_indP);
}
//-----------------------------------------------------------------------------
void
rlc_am_data_req (
const protocol_ctxt_t* const ctxt_pP,
void * const rlc_pP,
mem_block_t * const sdu_pP)
{
rlc_am_entity_t *l_rlc_p = (rlc_am_entity_t *) rlc_pP;
uint32_t mui;
uint16_t data_offset;
uint16_t data_size;
uint8_t conf;
#if TRACE_RLC_AM_PDU
char message_string[7000];
size_t message_string_size = 0;
#if ENABLE_ITTI
MessageDef *msg_p;
#endif
int octet_index, index;
#endif
RLC_AM_MUTEX_LOCK(&l_rlc_p->lock_input_sdus, ctxt_pP, l_rlc_p);
if ((l_rlc_p->input_sdus[l_rlc_p->next_sdu_index].mem_block == NULL) &&
(l_rlc_p->input_sdus[l_rlc_p->next_sdu_index].flags.segmented == 0) &&
(((l_rlc_p->next_sdu_index + 1) % RLC_AM_SDU_CONTROL_BUFFER_SIZE) != l_rlc_p->current_sdu_index)) {
memset(&l_rlc_p->input_sdus[l_rlc_p->next_sdu_index], 0, sizeof(rlc_am_tx_sdu_management_t));
l_rlc_p->input_sdus[l_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;
MSC_LOG_RX_MESSAGE(
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RLC_ENB:MSC_RLC_UE,
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_PDCP_ENB:MSC_PDCP_UE,
(const char*)(&sdu_pP->data[data_offset]),
data_size,
MSC_AS_TIME_FMT" "PROTOCOL_RLC_AM_MSC_FMT" DATA-REQ size %u mui %u",
MSC_AS_TIME_ARGS(ctxt_pP),
PROTOCOL_RLC_AM_MSC_ARGS(ctxt_pP, l_rlc_p),
data_size,
mui);
#if TRACE_RLC_AM_PDU
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], "SDU size : %u\n", data_size);
message_string_size += sprintf(&message_string[message_string_size], "MUI : %u\n", mui);
message_string_size += sprintf(&message_string[message_string_size], "CONF : %u\n", conf);
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 < data_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", ((uint8_t*)(&sdu_pP->data[data_offset]))[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");
# if ENABLE_ITTI
msg_p = itti_alloc_new_message_sized (ctxt_pP->enb_flag > 0 ? TASK_RLC_ENB:TASK_RLC_UE , RLC_AM_SDU_REQ, message_string_size + sizeof (IttiMsgText));
msg_p->ittiMsg.rlc_am_sdu_req.size = message_string_size;
memcpy(&msg_p->ittiMsg.rlc_am_sdu_req.text, message_string, message_string_size);
itti_send_msg_to_task(TASK_UNKNOWN, ctxt_pP->instance, msg_p);
# else
LOG_T(RLC, "%s", message_string);
# endif
#endif
l_rlc_p->stat_tx_pdcp_sdu += 1;
l_rlc_p->stat_tx_pdcp_bytes += data_size;
l_rlc_p->input_sdus[l_rlc_p->next_sdu_index].mui = mui;
l_rlc_p->input_sdus[l_rlc_p->next_sdu_index].sdu_size = data_size;
//l_rlc_p->input_sdus[l_rlc_p->next_sdu_index].confirm = conf;
l_rlc_p->sdu_buffer_occupancy += data_size;
l_rlc_p->nb_sdu += 1;
l_rlc_p->nb_sdu_no_segmented += 1;
l_rlc_p->input_sdus[l_rlc_p->next_sdu_index].first_byte = (uint8_t*)(&sdu_pP->data[data_offset]);
l_rlc_p->input_sdus[l_rlc_p->next_sdu_index].sdu_remaining_size = l_rlc_p->input_sdus[l_rlc_p->next_sdu_index].sdu_size;
l_rlc_p->input_sdus[l_rlc_p->next_sdu_index].sdu_segmented_size = 0;
l_rlc_p->input_sdus[l_rlc_p->next_sdu_index].sdu_creation_time = ctxt_pP->frame;
l_rlc_p->input_sdus[l_rlc_p->next_sdu_index].nb_pdus = 0;
l_rlc_p->input_sdus[l_rlc_p->next_sdu_index].nb_pdus_ack = 0;
//l_rlc_p->input_sdus[l_rlc_p->next_sdu_index].nb_pdus_time = 0;
//l_rlc_p->input_sdus[l_rlc_p->next_sdu_index].nb_pdus_internal_use = 0;
l_rlc_p->input_sdus[l_rlc_p->next_sdu_index].flags.discarded = 0;
l_rlc_p->input_sdus[l_rlc_p->next_sdu_index].flags.segmented = 0;
l_rlc_p->input_sdus[l_rlc_p->next_sdu_index].flags.segmentation_in_progress = 0;
l_rlc_p->input_sdus[l_rlc_p->next_sdu_index].flags.no_new_sdu_segmented_in_last_pdu = 0;
//l_rlc_p->input_sdus[l_rlc_p->next_sdu_index].li_index_for_discard = -1;
l_rlc_p->next_sdu_index = (l_rlc_p->next_sdu_index + 1) % RLC_AM_SDU_CONTROL_BUFFER_SIZE;
if (l_rlc_p->channel_id <3)
{
LOG_I(RLC, PROTOCOL_RLC_AM_CTXT_FMT" RLC_AM_DATA_REQ size %d Bytes, NB SDU %d current_sdu_index=%d next_sdu_index=%d conf %d mui %d vtA %d vtS %d\n",
PROTOCOL_RLC_AM_CTXT_ARGS(ctxt_pP,l_rlc_p),
data_size,
l_rlc_p->nb_sdu,
l_rlc_p->current_sdu_index,
l_rlc_p->next_sdu_index,
conf,
mui,
l_rlc_p->vt_a,
l_rlc_p->vt_s);
}
} else {
#if MESSAGE_CHART_GENERATOR
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;
MSC_LOG_RX_DISCARDED_MESSAGE(
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RLC_ENB:MSC_RLC_UE,
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_PDCP_ENB:MSC_PDCP_UE,
(const char*)(&sdu_pP->data[data_offset]),
data_size,
MSC_AS_TIME_FMT" "PROTOCOL_RLC_AM_MSC_FMT" DATA-REQ size %u mui %u",
MSC_AS_TIME_ARGS(ctxt_pP),
PROTOCOL_RLC_AM_MSC_ARGS(ctxt_pP, l_rlc_p),
data_size,
mui);
#endif
LOG_W(RLC, PROTOCOL_RLC_AM_CTXT_FMT" RLC_AM_DATA_REQ BUFFER FULL, NB SDU %d current_sdu_index=%d next_sdu_index=%d size_input_sdus_buffer=%d vtA=%d vtS=%d\n",
PROTOCOL_RLC_AM_CTXT_ARGS(ctxt_pP,l_rlc_p),
l_rlc_p->nb_sdu,
l_rlc_p->current_sdu_index,
l_rlc_p->next_sdu_index,
RLC_AM_SDU_CONTROL_BUFFER_SIZE,
l_rlc_p->vt_a,
l_rlc_p->vt_s);
LOG_W(RLC, " input_sdus[].mem_block=%p next input_sdus[].flags.segmented=%d\n",
l_rlc_p->input_sdus[l_rlc_p->next_sdu_index].mem_block, l_rlc_p->input_sdus[l_rlc_p->next_sdu_index].flags.segmented);
l_rlc_p->stat_tx_pdcp_sdu_discarded += 1;
l_rlc_p->stat_tx_pdcp_bytes_discarded += ((struct rlc_am_data_req *) (sdu_pP->data))->data_size;
free_mem_block (sdu_pP, __func__);
#if STOP_ON_IP_TRAFFIC_OVERLOAD
AssertFatal(0, PROTOCOL_RLC_AM_CTXT_FMT" RLC_AM_DATA_REQ size %d Bytes, SDU DROPPED, INPUT BUFFER OVERFLOW NB SDU %d current_sdu_index=%d next_sdu_index=%d \n",
PROTOCOL_RLC_AM_CTXT_ARGS(ctxt_pP,l_rlc_p),
data_size,
l_rlc_p->nb_sdu,
l_rlc_p->current_sdu_index,
l_rlc_p->next_sdu_index);
#endif
}
RLC_AM_MUTEX_UNLOCK(&l_rlc_p->lock_input_sdus);
}
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