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GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
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How to Apply These Terms to Your New Programs
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Also add information on how to contact you by electronic and paper mail.
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The hypothetical commands `show w' and `show c' should show the appropriate
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may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.
openair2/LAYER2/RLC/UM/rlc_um.c
-395
View File
@@ -1,395 +0,0 @@
/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenAirInterface is distributed in the hope that 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 OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see <http://www.gnu.org/licenses/>.
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@eurecom.fr
Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
*******************************************************************************/
/******************************************************************************
AUTHOR : Lionel GAUTHIER
COMPANY : EURECOM
EMAIL : Lionel.Gauthier@eurecom.fr
*******************************************************************************/
#ifndef USER_MODE
#define __NO_VERSION__
#include "rt_compat.h"
#ifdef RTAI
#include <rtai.h>
#include <rtai_posix.h>
#include <rtai_fifos.h>
#else
/* RTLINUX */
#include <rtl.h>
#include <time.h>
#include <rtl_sched.h>
#include <rtl_sync.h>
#include <pthread.h>
#include <rtl_debug.h>
#include <rtl_core.h>
#include <rtl_fifo.h>
#endif
#include <asm/page.h>
#else
#include <stdlib.h>
#include <stdio.h>
#include <fcntl.h>
#include <signal.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <pthread.h>
#endif
#include "print.h"
#include "lists_proto_extern.h"
#include "rlc_um_entity.h"
#include "rlc_um_structs.h"
#include "rlc_def.h"
#include "rlc_primitives.h"
#include "mac_primitives.h"
#include "rlc_um_segment_proto_extern.h"
#include "rlc_um_receiver_proto_extern.h"
#include "protocol_vars_extern.h"
#include "debug_l2.h"
#include "LAYER2/MAC/extern.h"
#define DEBUG_RLC_UM_DISPLAY_ASCII_DATA
//-----------------------------------------------------------------------------
uint32_t rlc_um_get_buffer_occupancy (struct rlc_um_entity* rlcP);
void rlc_um_get_pdus (void* argP);
void rlc_um_rx (void* argP, struct mac_data_ind data_indP);
struct mac_status_resp rlc_um_mac_status_indication (void* rlcP, uint16_t no_tbP, uint16_t tb_sizeP, struct mac_status_ind tx_statusP);
struct mac_data_req rlc_um_mac_data_request (void* rlcP);
void rlc_um_mac_data_indication (void* rlcP, struct mac_data_ind data_indP);
void rlc_um_data_req (void* rlcP, struct mem_block* sduP);
//-----------------------------------------------------------------------------
uint32_t
rlc_um_get_buffer_occupancy (struct rlc_um_entity* rlcP)
{
//-----------------------------------------------------------------------------
return rlcP->buffer_occupancy;
}
//-----------------------------------------------------------------------------
void
rlc_um_get_pdus (void* argP)
{
//-----------------------------------------------------------------------------
struct rlc_um_entity* rlc = (struct rlc_um_entity*) argP;
switch (rlc->protocol_state) {
case RLC_NULL_STATE:
// from 3GPP TS 25.322 V4.2.0
// In the NULL state the RLC entity does not exist and therefore it is not possible to transfer any data through it.
// Upon reception of a CRLC-CONFIG-Req from upper layer indicating establishment, the RLC entity:
// - is created; and
// - enters the DATA_TRANSFER_READY state.
break;
case RLC_DATA_TRANSFER_READY_STATE:
// from 3GPP TS 25.322 V4.2.0
// In the DATA_TRANSFER_READY state, unacknowledged mode data can be exchanged between the entities according to subclause 11.2.
// Upon reception of a CRLC-CONFIG-Req from upper layer indicating release, the RLC entity:
// - enters the NULL state; and
// - is considered as being terminated.
// Upon reception of a CRLC-CONFIG-Req from upper layer indicating modification, the RLC entity:
// - stays in the DATA_TRANSFER_READY state;
// - modifies only the protocol parameters and timers as indicated by upper layers.
// Upon reception of a CRLC-SUSPEND-Req from upper layers, the RLC entity:
// - enters the LOCAL_SUSPEND state.
// SEND DATA TO MAC
#ifndef NO_THREAD_SAFE
pthread_mutex_lock (&rlc->mutex_input_buffer);
#endif
if (rlc->data_pdu_size > 125) {
rlc_um_segment_15 (rlc);
} else {
rlc_um_segment_7 (rlc);
}
#ifndef NO_THREAD_SAFE
pthread_mutex_unlock (&rlc->mutex_input_buffer);
#endif
break;
case RLC_LOCAL_SUSPEND_STATE:
// from 3GPP TS 25.322 V4.2.0
// In the LOCAL_SUSPEND state, the RLC entity is suspended, i.e. it does not send UMD PDUs with SN greater than equal to certain specified value (see subclause 9.7.5).
// Upon reception of a CRLC-RESUME-Req from upper layers, the RLC entity:
// - enters the DATA_TRANSFER_READY state; and
// - resumes the data transmission.
// Upon reception of a CRLC-CONFIG-Req from upper layer indicating modification, the RLC entity:
// - stays in the LOCAL_SUSPEND state;
// - modifies only the protocol parameters and timers as indicated by upper layers.
// TO DO TAKE CARE OF SN : THE IMPLEMENTATION OF THIS FUNCTIONNALITY IS NOT CRITICAL
break;
default:
msg ("[RLC_UM %p] MAC_DATA_REQ UNKNOWN PROTOCOL STATE %02X hex\n", rlc, rlc->protocol_state);
}
}
//-----------------------------------------------------------------------------
void
rlc_um_rx (void* argP, struct mac_data_ind data_indP)
{
//-----------------------------------------------------------------------------
struct rlc_um_entity* rlc = (struct rlc_um_entity*) argP;
switch (rlc->protocol_state) {
case RLC_NULL_STATE:
// from 3GPP TS 25.322 V4.2.0
// In the NULL state the RLC entity does not exist and therefore it is not possible to transfer any data through it.
// Upon reception of a CRLC-CONFIG-Req from upper layer indicating establishment, the RLC entity:
// - is created; and
// - enters the DATA_TRANSFER_READY state.
msg ("[RLC_UM_RX %p] ERROR MAC_DATA_IND IN RLC_NULL_STATE\n", argP);
free_up (&data_indP.data);
break;
case RLC_DATA_TRANSFER_READY_STATE:
// from 3GPP TS 25.322 V4.2.0
// In the DATA_TRANSFER_READY state, unacknowledged mode data can be exchanged between the entities according to subclause 11.2.
// Upon reception of a CRLC-CONFIG-Req from upper layer indicating release, the RLC entity:
// - enters the NULL state; and
// - is considered as being terminated.
// Upon reception of a CRLC-CONFIG-Req from upper layer indicating modification, the RLC entity:
// - stays in the DATA_TRANSFER_READY state;
// - modifies only the protocol parameters and timers as indicated by upper layers.
// Upon reception of a CRLC-SUSPEND-Req from upper layers, the RLC entity:
// - enters the LOCAL_SUSPEND state.
data_indP.tb_size = (data_indP.tb_size + 7) >> 3; // from bits to bytes
if (data_indP.tb_size <= 125) {
rlc_um_receive_7 (rlc, data_indP);
} else {
rlc_um_receive_15 (rlc, data_indP);
}
break;
case RLC_LOCAL_SUSPEND_STATE:
// from 3GPP TS 25.322 V4.2.0
// In the LOCAL_SUSPEND state, the RLC entity is suspended, i.e. it does not send UMD PDUs with SN greater than equal to certain specified value (see subclause 9.7.5).
// Upon reception of a CRLC-RESUME-Req from upper layers, the RLC entity:
// - enters the DATA_TRANSFER_READY state; and
// - resumes the data transmission.
// Upon reception of a CRLC-CONFIG-Req from upper layer indicating modification, the RLC entity:
// - stays in the LOCAL_SUSPEND state;
// - modifies only the protocol parameters and timers as indicated by upper layers.
msg ("[RLC_UM_RX %p] RLC_LOCAL_SUSPEND_STATE\n", argP);
break;
default:
msg ("[RLC_UM_RX][RB %d] TX UNKNOWN PROTOCOL STATE %02X hex\n", rlc->rb_id, rlc->protocol_state);
}
}
//-----------------------------------------------------------------------------
struct mac_status_resp
rlc_um_mac_status_indication (void* rlcP, uint16_t no_tbP, uint16_t tb_sizeP, struct mac_status_ind tx_statusP)
{
//-----------------------------------------------------------------------------
struct mac_status_resp status_resp;
((struct rlc_um_entity*) rlcP)->nb_pdu_requested_by_mac = no_tbP - ((struct rlc_um_entity*) rlcP)->pdus_to_mac_layer.nb_elements;
((struct rlc_um_entity*) rlcP)->data_pdu_size = (tb_sizeP + 7) >> 3;
((struct rlc_um_entity*) rlcP)->data_pdu_size_in_bits = tb_sizeP;
status_resp.buffer_occupancy_in_bytes = rlc_um_get_buffer_occupancy ((struct rlc_um_entity*) rlcP);
status_resp.buffer_occupancy_in_pdus = status_resp.buffer_occupancy_in_bytes / ((struct rlc_um_entity*) rlcP)->data_pdu_size;
status_resp.rlc_info.rlc_protocol_state = ((struct rlc_um_entity*) rlcP)->protocol_state;
#ifdef TRACE_RLC_UM_TX_STATUS
if (((struct rlc_um_entity*) rlcP)->rb_id > 0) {
msg ("[RLC_UM][RB %d] MAC_STATUS_INDICATION (DATA) %d TBs -> %d TBs\n", ((struct rlc_um_entity*) rlcP)->rb_id, no_tbP, status_resp.buffer_occupancy_in_pdus);
if ((tx_statusP.tx_status == MAC_TX_STATUS_SUCCESSFUL) && (tx_statusP.no_pdu)) {
msg ("[RLC_UM][RB %d] MAC_STATUS_INDICATION TX STATUS SUCCESSFUL %d PDUs\n", ((struct rlc_um_entity*) rlcP)->rb_id, tx_statusP.no_pdu);
}
if ((tx_statusP.tx_status == MAC_TX_STATUS_UNSUCCESSFUL) && (tx_statusP.no_pdu)) {
msg ("[RLC_UM][RB %d] MAC_STATUS_INDICATION TX STATUS UNSUCCESSFUL %d PDUs\n", ((struct rlc_um_entity*) rlcP)->rb_id, tx_statusP.no_pdu);
}
}
#endif
return status_resp;
}
//-----------------------------------------------------------------------------
struct mac_data_req
rlc_um_mac_data_request (void* rlcP)
{
//-----------------------------------------------------------------------------
struct mac_data_req data_req;
rlc_um_get_pdus (rlcP);
init_cnt_up (&data_req.data, NULL);
add_cnt_up (&((struct rlc_um_entity*) rlcP)->pdus_to_mac_layer, &data_req.data);
#ifdef DEBUG_RLC_STATS
((struct rlc_um_entity*) rlcP)->tx_pdus += data_req.data.nb_elements;
#endif
#ifdef DEBUG_RLC_UM_MAC_DATA_REQUEST
if (((struct rlc_um_entity*) rlcP)->rb_id > 0) {
// msg ("[RLC_UM][RB %d] MAC_DATA_REQUEST %d TBs\n", ((struct rlc_um_entity *) rlcP)->rb_id, data_req.data.nb_elements);
}
#endif
data_req.buffer_occupancy_in_bytes = rlc_um_get_buffer_occupancy ((struct rlc_um_entity*) rlcP);
data_req.buffer_occupancy_in_pdus = data_req.buffer_occupancy_in_bytes / ((struct rlc_um_entity*) rlcP)->data_pdu_size;
data_req.rlc_info.rlc_protocol_state = ((struct rlc_um_entity*) rlcP)->protocol_state;
return data_req;
}
//-----------------------------------------------------------------------------
void
rlc_um_mac_data_indication (void* rlcP, struct mac_data_ind data_indP)
{
//-----------------------------------------------------------------------------
rlc_um_rx (rlcP, data_indP);
}
//-----------------------------------------------------------------------------
void
rlc_um_data_req (void* rlcP, struct mem_block* sduP)
{
//-----------------------------------------------------------------------------
struct rlc_um_entity* rlc = (struct rlc_um_entity*) rlcP;
uint8_t use_special_li;
uint8_t insert_sdu = 0;
#ifdef DEBUG_RLC_UM_DISCARD_SDU
int index;
#else
# if DEBUG_RLC_UM_DISPLAY_ASCII_DATA
int index;
# endif
#endif
#ifndef NO_THREAD_SAFE
pthread_mutex_lock (&rlc->mutex_input_buffer);
#endif
#ifdef DEBUG_RLC_UM_DATA_REQUEST
//msg ("[RLC_UM][RB %d] RLC_UM_DATA_REQ size %d Bytes, BO %ld , NB SDU %d current_sdu_index=%d next_sdu_index=%d\n",
// rlc->rb_id, ((struct rlc_um_data_req *) (sduP->data))->data_size, rlc->buffer_occupancy, rlc->nb_sdu, rlc->current_sdu_index, rlc->next_sdu_index);
#endif
if (rlc->input_sdus[rlc->next_sdu_index] == NULL) {
insert_sdu = 1;
} else {
// from 3GPP TS 25.322 V4.2.0
// If SDU discard has not been configured for an unacknowledged mode RLC entity, SDUs in the
// transmitter shall not be discarded unless the Transmission buffer is full.
// When the Transmission buffer in an unacknowledged mode RLC entity is full, the Sender may:
// - if segments of the SDU to be discarded have been submitted to lower layer:
// - discard the SDU without explicit signalling according to subclause 11.2.4.3.
// - otherwise, if no segments of the SDU to be discarded have been submitted to lower layer:
// - remove the SDU from the Transmission buffer without utilising any of the discard procedures.
if ((rlc->sdu_discard_mode & RLC_SDU_DISCARD_NOT_CONFIGURED)) {
if ((rlc->input_sdus[rlc->current_sdu_index])) {
#ifdef DEBUG_RLC_UM_DISCARD_SDU
msg ("[RLC_UM][RB %d] SDU DISCARDED : BUFFER OVERFLOW, BO %ld , NB SDU %d\n", rlc->rb_id, rlc->buffer_occupancy, rlc->nb_sdu);
#endif
if (((struct rlc_um_tx_sdu_management*) (rlc->input_sdus[rlc->current_sdu_index]->data))->sdu_remaining_size !=
((struct rlc_um_tx_sdu_management*) (rlc->input_sdus[rlc->current_sdu_index]->data))->sdu_size) {
#ifdef DEBUG_RLC_UM_VT_US
msg ("[RLC_UM][RB %d] Inc VT(US) in rlc_um_data_req()/discarding SDU\n", rlc->rb_id);
#endif
rlc->vt_us = (rlc->vt_us + 1) & 0x7F;
rlc->li_one_byte_short_to_add_in_next_pdu = 0;
rlc->li_exactly_filled_to_add_in_next_pdu = 1;
rlc->buffer_occupancy -= ((struct rlc_um_tx_sdu_management*) (rlc->input_sdus[rlc->current_sdu_index]->data))->sdu_remaining_size;
} else {
rlc->buffer_occupancy -= ((struct rlc_um_tx_sdu_management*) (rlc->input_sdus[rlc->current_sdu_index]->data))->sdu_size;
}
rlc->nb_sdu -= 1;
free_mem_block (rlc->input_sdus[rlc->current_sdu_index]);
rlc->input_sdus[rlc->current_sdu_index] = NULL;
insert_sdu = 1;
rlc->current_sdu_index = (rlc->current_sdu_index + 1) % rlc->size_input_sdus_buffer;
#ifdef DEBUG_RLC_UM_DISCARD_SDU
msg ("[RLC_UM][RB %d] DISCARD RESULT:\n", rlc->rb_id);
//msg ("[RLC_UM][RB %d] size input buffer=%d current_sdu_index=%d next_sdu_index=%d\n", rlc->rb_id, rlc->size_input_sdus_buffer, rlc->current_sdu_index, rlc->next_sdu_index);
for (index = 0; index < rlc->size_input_sdus_buffer; index++) {
//msg ("[RLC_UM][RB %d] BUFFER[%d]=%p\n", rlc->rb_id, index, rlc->input_sdus[index]);
}
#endif
} else {
#ifdef DEBUG_RLC_UM_DISCARD_SDU
msg ("[RLC_UM][RB %d] DISCARD : BUFFER OVERFLOW ERROR : SHOULD FIND A SDU\n", rlc->rb_id);
//msg ("[RLC_UM][RB %d] size input buffer=%d current_sdu_index=%d next_sdu_index=%d\n", rlc->rb_id, rlc->size_input_sdus_buffer, rlc->current_sdu_index, rlc->next_sdu_index);
for (index = 0; index < rlc->size_input_sdus_buffer; index++) {
msg ("[RLC_UM][rb %d] BUFFER[%d]=%p\n", rlc->rb_id, index, rlc->input_sdus[index]);
}
#endif
}
}
}
if ((insert_sdu)) {
#ifdef BENCH_QOS_L2
fprintf (bench_l2, "[SDU REQUEST] FRAME %d SIZE %d RB %d RLC-UM %p\n", mac_xface->frame, ((struct rlc_um_data_req*) (sduP->data))->data_size, rlc->rb_id, rlc);
#endif
rlc->input_sdus[rlc->next_sdu_index] = sduP;
// IMPORTANT : do not change order of affectations
use_special_li = ((struct rlc_um_data_req*) (sduP->data))->use_special_li;
((struct rlc_um_tx_sdu_management*) (sduP->data))->sdu_size = ((struct rlc_um_data_req*) (sduP->data))->data_size;
((struct rlc_um_tx_sdu_management*) (sduP->data))->use_special_li = use_special_li;
rlc->buffer_occupancy += ((struct rlc_um_tx_sdu_management*) (sduP->data))->sdu_size;
rlc->nb_sdu += 1;
((struct rlc_um_tx_sdu_management*) (sduP->data))->first_byte = &sduP->data[sizeof (struct rlc_um_data_req_alloc)];
((struct rlc_um_tx_sdu_management*) (sduP->data))->sdu_remaining_size = ((struct rlc_um_tx_sdu_management*) (sduP->data))->sdu_size;
((struct rlc_um_tx_sdu_management*) (sduP->data))->sdu_segmented_size = 0;
((struct rlc_um_tx_sdu_management*) (sduP->data))->sdu_creation_time = *rlc->frame_tick_milliseconds;
rlc->next_sdu_index = (rlc->next_sdu_index + 1) % rlc->size_input_sdus_buffer;
#ifdef DEBUG_RLC_UM_DISPLAY_ASCII_DATA
//msg ("[RLC_UM][RB %d]SDU REQUEST DATA :", rlc->rb_id);
for (index = 0; index < ((struct rlc_um_tx_sdu_management*) (sduP->data))->sdu_remaining_size; index++) {
msg ("%02X-", ((struct rlc_um_tx_sdu_management*) (sduP->data))->first_byte[index]);
}
msg ("\n");
#endif
} else {
free_mem_block (sduP);
}
#ifndef NO_THREAD_SAFE
pthread_mutex_unlock (&rlc->mutex_input_buffer);
#endif
}
openair2/LAYER2/RLC/UM/rlc_um_constants.h
-53
View File
@@ -1,53 +0,0 @@
/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenAirInterface is distributed in the hope that 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 OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see <http://www.gnu.org/licenses/>.
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@eurecom.fr
Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
*******************************************************************************/
/******************************************************************************
AUTHOR : Lionel GAUTHIER
COMPANY : EURECOM
EMAIL : Lionel.Gauthier@eurecom.fr
*******************************************************************************/
# ifndef __RLC_UM_CONSTANTS_H__
# define __RLC_UM_CONSTANTS_H__
// SN Field
# define RLC_UM_SN_7BITS_MASK 0xFF
// li field (values shifted 1 bit left)
# define RLC_UM_SEGMENT_NB_MAX_LI_PER_PDU 32
# define RLC_UM_LI_FIRST_PDU_BYTE_IS_FIRST_SDU_BYTE 0xFFF8
# define RLC_LI7_PDU_PADDING 0xFFFE
//----------------------------------------------------------
// Events defined for state model of the acknowledged mode entity
# define RLC_UM_RECEIVE_CRLC_CONFIG_REQ_ENTER_NULL_STATE_EVENT 0x00
# define RLC_UM_RECEIVE_CRLC_CONFIG_REQ_ENTER_DATA_TRANSFER_READY_STATE_EVENT 0x01
# define RLC_UM_RECEIVE_CRLC_SUSPEND_REQ_EVENT 0x10
# define RLC_UM_TRANSMIT_CRLC_SUSPEND_CNF_EVENT 0x11
# define RLC_UM_RECEIVE_CRLC_RESUME_REQ_EVENT 0x12
# endif
openair2/LAYER2/RLC/UM/rlc_um_control_primitives.c
-295
View File
@@ -1,295 +0,0 @@
/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenAirInterface is distributed in the hope that 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 OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see <http://www.gnu.org/licenses/>.
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@eurecom.fr
Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
*******************************************************************************/
/******************************************************************************
AUTHOR : Lionel GAUTHIER
COMPANY : EURECOM
EMAIL : Lionel.Gauthier@eurecom.fr
*******************************************************************************/
#ifndef USER_MODE
# define __NO_VERSION__
# include "rt_compat.h"
# ifdef RTAI
# include <rtai.h>
# include <rtai_posix.h>
# include <rtai_fifos.h>
# else
/* RTLINUX */
# include <rtl.h>
# include <time.h>
# include <rtl_sched.h>
# include <rtl_sync.h>
# include <pthread.h>
# include <rtl_debug.h>
# include <rtl_core.h>
# include <rtl_fifo.h>
# endif
# include <asm/page.h>
#else
# include <stdlib.h>
# include <stdio.h>
# include <fcntl.h>
# include <signal.h>
# include <sys/types.h>
# include <sys/stat.h>
# include <pthread.h>
#endif
//-----------------------------------------------------------------------------
#include "print.h"
#include "rlc_um_entity.h"
#include "rlc_um_constants.h"
#include "rlc_um_structs.h"
#include "rlc_primitives.h"
#include "protocol_vars_extern.h"
#include "rlc_um_fsm_proto_extern.h"
#include "lists_proto_extern.h"
#include "rrm_config_structs.h"
#include "debug_l2.h"
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
void
config_req_rlc_um (struct rlc_um_entity *rlcP, UM * config_umP, void *upper_layerP, void *(*data_indP) (void *, struct mem_block * sduP), uint8_t rb_idP)
{
//-----------------------------------------------------------------------------
struct mem_block *mb;
mb = get_free_mem_block (sizeof (struct crlc_primitive));
((struct crlc_primitive *) mb->data)->type = CRLC_CONFIG_REQ;
((struct crlc_primitive *) mb->data)->primitive.c_config_req.parameters.um_parameters.e_r = RLC_E_R_ESTABLISHMENT;
((struct crlc_primitive *) mb->data)->primitive.c_config_req.parameters.um_parameters.stop = 0;
((struct crlc_primitive *) mb->data)->primitive.c_config_req.parameters.um_parameters.cont = 1;
((struct crlc_primitive *) mb->data)->primitive.c_config_req.parameters.um_parameters.timer_discard = config_umP->timer_discard;
((struct crlc_primitive *) mb->data)->primitive.c_config_req.parameters.um_parameters.sdu_discard_mode = config_umP->sdu_discard_mode;
#ifdef NODE_RG
((struct crlc_primitive *) mb->data)->primitive.c_config_req.parameters.um_parameters.frame_tick_milliseconds = &protocol_bs->frame_tick_milliseconds;
#else
((struct crlc_primitive *) mb->data)->primitive.c_config_req.parameters.um_parameters.frame_tick_milliseconds = &protocol_ms->frame_tick_milliseconds;
#endif
((struct crlc_primitive *) mb->data)->primitive.c_config_req.parameters.um_parameters.upper_layer = upper_layerP;
((struct crlc_primitive *) mb->data)->primitive.c_config_req.parameters.um_parameters.size_input_sdus_buffer = 128;
((struct crlc_primitive *) mb->data)->primitive.c_config_req.parameters.um_parameters.rlc_data_ind = data_indP;
((struct crlc_primitive *) mb->data)->primitive.c_config_req.parameters.um_parameters.rb_id = rb_idP;
send_rlc_um_control_primitive (rlcP, mb);
}
//-----------------------------------------------------------------------------
void
send_rlc_um_control_primitive (struct rlc_um_entity *rlcP, struct mem_block *cprimitiveP)
{
//-----------------------------------------------------------------------------
switch (((struct crlc_primitive *) cprimitiveP->data)->type) {
case CRLC_CONFIG_REQ:
switch (((struct crlc_primitive *) cprimitiveP->data)->primitive.c_config_req.parameters.um_parameters.e_r) {
case RLC_E_R_ESTABLISHMENT:
if (rlc_um_fsm_notify_event (rlcP, RLC_UM_RECEIVE_CRLC_CONFIG_REQ_ENTER_DATA_TRANSFER_READY_STATE_EVENT)) {
rlc_um_set_configured_parameters (rlcP, cprimitiveP); // the order of the calling of procedures...
rlc_um_reset_state_variables (rlcP); // ...must not ...
}
break;
case RLC_E_R_MODIFICATION:
msg ("[RLC_UM][ERROR] send_rlc_um_control_primitive(CRLC_CONFIG_REQ) RLC_AM_E_R_MODIFICATION not handled\n");
break;
case RLC_E_R_RELEASE:
if (rlc_um_fsm_notify_event (rlcP, RLC_UM_RECEIVE_CRLC_CONFIG_REQ_ENTER_NULL_STATE_EVENT)) {
rlc_um_free_all_resources (rlcP);
}
break;
default:
msg ("[RLC_UM][ERROR] send_rlc_um_control_primitive(CRLC_CONFIG_REQ) unknown parameter E_R\n");
}
break;
case CRLC_RESUME_REQ:
msg ("[RLC_UM][ERROR] send_rlc_um_control_primitive(CRLC_RESUME_REQ) cprimitive not handled\n");
break;
default:
msg ("[RLC_UM %p][ERROR] send_rlc_um_control_primitive(UNKNOWN CPRIMITIVE)\n", rlcP);
}
free_mem_block (cprimitiveP);
}
//-----------------------------------------------------------------------------
void
init_rlc_um (struct rlc_um_entity *rlcP)
{
//-----------------------------------------------------------------------------
#ifndef NO_THREAD_SAFE
pthread_mutexattr_t attr;
int error_code;
#endif
memset (rlcP, 0, sizeof (struct rlc_um_entity));
// TX SIDE
init_cnt_up (&rlcP->pdus_to_mac_layer, NULL);
#ifndef NO_THREAD_SAFE
// init mutex protect input sdu buffer
pthread_mutexattr_init (&attr);
# ifdef USER_MODE
pthread_mutexattr_settype (&attr, PTHREAD_MUTEX_RECURSIVE_NP);
# else
pthread_mutexattr_settype (&attr, PTHREAD_MUTEX_NORMAL);
# endif
if ((error_code = pthread_mutex_init (&rlcP->mutex_input_buffer, &attr))) {
msg ("[RLC_UM %p][ERROR] init mutex input buffer %d\n", rlcP, error_code);
}
# ifndef USER_MODE
//pthread_mutexattr_setprotocol(&rlcP->mutex_input_buffer, PTHREAD_PRIO_INHERIT);
# endif
#endif
rlcP->protocol_state = RLC_NULL_STATE;
rlcP->nb_sdu = 0;
rlcP->next_sdu_index = 0;
rlcP->current_sdu_index = 0;
rlcP->li_one_byte_short_to_add_in_next_pdu = 0;
rlcP->li_exactly_filled_to_add_in_next_pdu = 0;
rlcP->li_length_15_was_used_for_previous_pdu = 0;
rlcP->vt_us = 0;
rlcP->first_li_in_next_pdu = RLC_LI_UNDEFINED;
// RX SIDE
init_up (&rlcP->pdus_from_mac_layer, NULL);
rlcP->vr_us = 0;
rlcP->output_sdu_size_to_write = 0;
rlcP->output_sdu_in_construction = NULL;
}
//-----------------------------------------------------------------------------
void
rlc_um_reset_state_variables (struct rlc_um_entity *rlcP)
{
//-----------------------------------------------------------------------------
// TX SIDE
rlcP->buffer_occupancy = 0;
rlcP->nb_sdu = 0;
rlcP->next_sdu_index = 0;
rlcP->current_sdu_index = 0;
rlcP->vt_us = 0;
rlcP->li_one_byte_short_to_add_in_next_pdu = 0;
rlcP->li_exactly_filled_to_add_in_next_pdu = 0;
rlcP->li_length_15_was_used_for_previous_pdu = 0;
// RX SIDE
rlcP->last_reassemblied_sn = 127;
rlcP->vr_us = 0;
}
//-----------------------------------------------------------------------------
void
rlc_um_free_all_resources (struct rlc_um_entity *rlcP)
{
//-----------------------------------------------------------------------------
int index;
// TX SIDE
free_cnt_up (&rlcP->pdus_to_mac_layer);
if (rlcP->input_sdus_alloc) {
for (index = 0; index < rlcP->size_input_sdus_buffer; index++) {
if (rlcP->input_sdus[index]) {
free_mem_block (rlcP->input_sdus[index]);
}
}
free_mem_block (rlcP->input_sdus_alloc);
rlcP->input_sdus_alloc = NULL;
}
// RX SIDE
free_up (&rlcP->pdus_from_mac_layer);
if ((rlcP->output_sdu_in_construction)) {
free_mem_block (rlcP->output_sdu_in_construction);
}
}
//-----------------------------------------------------------------------------
void
rlc_um_set_configured_parameters (struct rlc_um_entity *rlcP, struct mem_block *cprimitiveP)
{
//-----------------------------------------------------------------------------
// timers
rlcP->timer_discard_init = ((struct crlc_primitive *) cprimitiveP->data)->primitive.c_config_req.parameters.um_parameters.timer_discard;
// protocol_parameters
rlcP->sdu_discard_mode = ((struct crlc_primitive *) cprimitiveP->data)->primitive.c_config_req.parameters.um_parameters.sdu_discard_mode;
// SPARE : not 3GPP
rlcP->frame_tick_milliseconds = ((struct crlc_primitive *) cprimitiveP->data)->primitive.c_config_req.parameters.um_parameters.frame_tick_milliseconds;
rlcP->size_input_sdus_buffer = ((struct crlc_primitive *) cprimitiveP->data)->primitive.c_config_req.parameters.um_parameters.size_input_sdus_buffer;
rlcP->upper_layer = ((struct crlc_primitive *) cprimitiveP->data)->primitive.c_config_req.parameters.um_parameters.upper_layer;
rlcP->rb_id = ((struct crlc_primitive *) cprimitiveP->data)->primitive.c_config_req.parameters.um_parameters.rb_id;
if ((rlcP->input_sdus_alloc == NULL) && (rlcP->size_input_sdus_buffer > 0)) {
rlcP->input_sdus_alloc = get_free_mem_block (rlcP->size_input_sdus_buffer * sizeof (void *));
rlcP->input_sdus = (struct mem_block **) (rlcP->input_sdus_alloc->data);
memset (rlcP->input_sdus, 0, rlcP->size_input_sdus_buffer * sizeof (void *));
}
rlcP->rlc_data_ind = ((struct crlc_primitive *) cprimitiveP->data)->primitive.c_config_req.parameters.um_parameters.rlc_data_ind;
rlcP->first_pdu = 1;
#ifdef DEBUG_LOAD_CONFIG
if (rlcP->sdu_discard_mode == RLC_SDU_DISCARD_TIMER_BASED_NO_EXPLICIT) {
msg ("[RLC UM][RB %d] SDU_DISCARD_TIMER_BASED_NO_EXPLICIT time out %d\n", rlcP->rb_id, rlcP->timer_discard_init);
} else if (rlcP->sdu_discard_mode == RLC_SDU_DISCARD_NOT_CONFIGURED) {
msg ("[RLC UM][RB %d] SDU_DISCARD_NOT_CONFIGURED\n", rlcP->rb_id);
} else {
msg ("[RLC UM][RB %d][ERROR] sdu discard mode not configured\n", rlcP->rb_id);
}
#endif
}
openair2/LAYER2/RLC/UM/rlc_um_control_primitives_proto_extern.h
-49
View File
@@ -1,49 +0,0 @@
/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenAirInterface is distributed in the hope that 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 OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see <http://www.gnu.org/licenses/>.
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@eurecom.fr
Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
*******************************************************************************/
/******************************************************************************
AUTHOR : Lionel GAUTHIER
COMPANY : EURECOM
EMAIL : Lionel.Gauthier@eurecom.fr
*******************************************************************************/
# ifndef __RLC_UM_CONTROL_PRIMITIVES_H__
# define __RLC_UM_CONTROL_PRIMITIVES_H__
//-----------------------------------------------------------------------------
# include "rlc_um_entity.h"
# include "mem_block.h"
# include "rrm_config_structs.h"
//-----------------------------------------------------------------------------
extern void config_req_rlc_um (struct rlc_um_entity *rlcP, UM * config_umP, void *upper_layerP, void *(*data_indP) (void *, struct mem_block * sduP), uint8_t rb_idP);
extern void send_rlc_um_control_primitive (struct rlc_um_entity *rlcP, struct mem_block *cprimitiveP);
extern void init_rlc_um (struct rlc_um_entity *rlcP);
extern void rlc_um_reset_state_variables (struct rlc_um_entity *rlcP);
extern void rlc_um_free_all_resources (struct rlc_um_entity *rlcP);
extern void rlc_um_set_configured_parameters (struct rlc_um_entity *rlcP, struct mem_block *cprimitiveP);
# endif
openair2/LAYER2/RLC/UM/rlc_um_entity.h
-156
View File
@@ -1,156 +0,0 @@
/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenAirInterface is distributed in the hope that 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 OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see <http://www.gnu.org/licenses/>.
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@eurecom.fr
Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
*******************************************************************************/
/******************************************************************************
AUTHOR : Lionel GAUTHIER
COMPANY : EURECOM
EMAIL : Lionel.Gauthier@eurecom.fr
*******************************************************************************/
# ifndef __RLC_UM_ENTITY_H__
# define __RLC_UM_ENTITY_H__
//# include "platform.h"
# include "list.h"
# include "rlc_primitives.h"
# include "rlc_def.h"
# ifndef NO_THREAD_SAFE
# if !defined(USER_MODE) && defined(RTAI_ENABLED)
# include <rtai.h>
# include <rtai_posix.h>
# else
# include <pthread.h>
# endif
# endif
struct rlc_um_entity {
# ifndef NO_THREAD_SAFE
pthread_mutex_t mutex_input_buffer;
# endif
uint8_t allocation;
uint8_t protocol_state;
// for stats and trace purpose :
uint16_t data_plane; // act as a boolean
//*****************************************************************************
// TRANSMITER
//*****************************************************************************
//-----------------------------
// protocol variables
//-----------------------------
uint16_t first_li_in_next_pdu; // indicates :
// value = 000000000000000 that the previous PDU was exactly
// with the last segment of an RLC SDU and there is no LI that
// indicates the end of the SDU in the previous RLC PDU.
// value = 111111111111011 The last segment of an RLC SDU was one octet
// short of exactly filling the previous RLC PDU and there is no LI that
// indicates the end of the SDU in the previous RLC PDU. The remaining one
// octet in the previous RLC PDU is ignored.
// value = 111111111111110 AMD PDU: The rest of the RLC PDU includes a
// piggybacked STATUS PDU.
// value = 111111111111111 The rest of the RLC PDU is padding. The padding
// length can be zero.
uint8_t vt_us; // This state variable contains the "Sequence Number"
// of the next UMD PDU to be transmitted. It shall be
// incremented by 1 each time a UMD PDU is transmitted.
// The initial value of this variable is 0.
//-----------------------------
// discard info
//-----------------------------
uint8_t sdu_discard_mode;
//-----------------------------
// timers
//-----------------------------
uint16_t timer_discard_init;
uint32_t *frame_tick_milliseconds; // pointer on this tick variable handled by RRC : READ ONLY
//-----------------------------
// tranmission
//-----------------------------
// sdu communication;
mem_block **input_sdus; // should be accessed as an array
mem_block *input_sdus_alloc; // allocation of the array
uint16_t size_input_sdus_buffer;
uint16_t nb_sdu;
uint16_t next_sdu_index; // next location of incoming sdu
uint16_t current_sdu_index;
uint32_t buffer_occupancy;
uint16_t data_pdu_size;
uint16_t data_pdu_size_in_bits;
uint16_t nb_pdu_requested_by_mac;
uint8_t li_one_byte_short_to_add_in_next_pdu;
uint8_t li_exactly_filled_to_add_in_next_pdu;
uint8_t li_length_15_was_used_for_previous_pdu;
cnt_list_up pdus_to_mac_layer;
//-----------------------------
// C-SAP
//-----------------------------
list c_sap;
//-----------------------------
// Mapping info
//-----------------------------
uint8_t logical_channel_identity;
void *upper_layer; // may be PDCP or (RRC)
//*****************************************************************************
// RECEIVER
//*****************************************************************************
//-----------------------------
// protocol variables
//-----------------------------
uint8_t vr_us; // This state variable contains the "Sequence Number"
// following that of the last UMD PDU received. When a UMD PDU
// with "Sequence Number" equal to x is received, the state
// variable shall set equal to x + 1.
// The initial value of this variable is 0
//-----------------------------
// receiver
//-----------------------------
// the current output sdu is the first in the list
list output_sdu_list;
mem_block *output_sdu_in_construction;
unsigned int output_sdu_size_to_write; // for writing in sdu
//struct rlc_um_data_ind output_rlc_primitive;// for writing header in rt_fifo
list_up pdus_from_mac_layer;
uint8_t last_reassemblied_sn:7;
uint8_t rb_id;
void *(*rlc_data_ind) (void *, mem_block * sduP, uint8_t);
uint32_t tx_sdus;
uint32_t rx_sdus;
uint32_t tx_pdus;
uint32_t rx_pdus;
uint32_t rx_pdus_in_error;
uint8_t first_pdu;
};
# endif
openair2/LAYER2/RLC/UM/rlc_um_fsm.c
-146
View File
@@ -1,146 +0,0 @@
/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenAirInterface is distributed in the hope that 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 OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see <http://www.gnu.org/licenses/>.
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@eurecom.fr
Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
*******************************************************************************/
/******************************************************************************
AUTHOR : Lionel GAUTHIER
COMPANY : EURECOM
EMAIL : Lionel.Gauthier@eurecom.fr
*******************************************************************************/
#ifndef USER_MODE
# define __NO_VERSION__
# ifdef RTAI
# include <rtai.h>
# else
/* RTLINUX */
# include <rtl.h>
# endif
# include <asm/page.h>
#else
# include <stdlib.h>
# include <stdio.h>
# include <fcntl.h>
# include <signal.h>
# include <sys/types.h>
# include <sys/stat.h>
#endif
//-----------------------------------------------------------------------------
#include "print.h"
#include "platform.h"
#include "rlc_um_entity.h"
#include "rlc_um_constants.h"
#include "rlc_def.h"
#include "debug_l2.h"
//-----------------------------------------------------------------------------
#ifdef DEBUG_RLC_UM_FSM
# define PRINT_RLC_UM_FSM msg
#else
# define PRINT_RLC_UM_FSM //
#endif
//-----------------------------------------------------------------------------
int
rlc_um_fsm_notify_event (struct rlc_um_entity *rlcP, uint8_t eventP)
{
//-----------------------------------------------------------------------------
switch (rlcP->protocol_state) {
//-------------------------------
// RLC_NULL_STATE
//-------------------------------
case RLC_NULL_STATE:
switch (eventP) {
case RLC_UM_RECEIVE_CRLC_CONFIG_REQ_ENTER_DATA_TRANSFER_READY_STATE_EVENT:
PRINT_RLC_UM_FSM ("[RLC_UM %p][FSM] RLC_NULL_STATE -> RLC_DATA_TRANSFER_READY_STATE\n", rlcP);
rlcP->protocol_state = RLC_DATA_TRANSFER_READY_STATE;
return 1;
break;
default:
msg ("[RLC_UM %p][FSM] WARNING PROTOCOL ERROR - EVENT %02X hex NOT EXPECTED FROM NULL_STATE\n", rlcP, eventP);
return 0;
}
break;
//-------------------------------
// RLC_DATA_TRANSFER_READY_STATE
//-------------------------------
case RLC_DATA_TRANSFER_READY_STATE:
switch (eventP) {
case RLC_UM_RECEIVE_CRLC_CONFIG_REQ_ENTER_NULL_STATE_EVENT:
PRINT_RLC_UM_FSM ("[RLC_UM %p][FSM] RLC_DATA_TRANSFER_READY_STATE -> RLC_NULL_STATE\n", rlcP);
rlcP->protocol_state = RLC_NULL_STATE;
return 1;
break;
case RLC_UM_RECEIVE_CRLC_SUSPEND_REQ_EVENT:
case RLC_UM_TRANSMIT_CRLC_SUSPEND_CNF_EVENT:
PRINT_RLC_UM_FSM ("[RLC_UM %p][FSM] RLC_DATA_TRANSFER_READY_STATE -> RLC_LOCAL_SUSPEND_STATE\n", rlcP);
rlcP->protocol_state = RLC_LOCAL_SUSPEND_STATE;
return 1;
break;
default:
msg ("[RLC_UM %p][FSM] WARNING PROTOCOL ERROR - EVENT %02X hex NOT EXPECTED FROM DATA_TRANSFER_READY_STATE\n", rlcP, eventP);
return 0;
}
break;
//-------------------------------
// RLC_LOCAL_SUSPEND_STATE
//-------------------------------
case RLC_LOCAL_SUSPEND_STATE:
switch (eventP) {
case RLC_UM_RECEIVE_CRLC_CONFIG_REQ_ENTER_NULL_STATE_EVENT:
PRINT_RLC_UM_FSM ("[RLC_UM %p][FSM] RLC_LOCAL_SUSPEND_STATE -> RLC_NULL_STATE\n", rlcP);
rlcP->protocol_state = RLC_NULL_STATE;
return 1;
break;
case RLC_UM_RECEIVE_CRLC_RESUME_REQ_EVENT:
PRINT_RLC_UM_FSM ("[RLC_UM %p][FSM] RLC_LOCAL_SUSPEND_STATE -> RLC_DATA_TRANSFER_READY_STATE\n", rlcP);
rlcP->protocol_state = RLC_DATA_TRANSFER_READY_STATE;
return 1;
break;
default:
msg ("[RLC_UM %p][FSM] WARNING PROTOCOL ERROR - EVENT %02X hex NOT EXPECTED FROM RLC_LOCAL_SUSPEND_STATE\n", rlcP, eventP);
return 0;
}
break;
default:
msg ("[RLC_UM %p][FSM] ERROR UNKNOWN STATE %d\n", rlcP, rlcP->protocol_state);
return 0;
}
}
openair2/LAYER2/RLC/UM/rlc_um_fsm_proto_extern.h
-42
View File
@@ -1,42 +0,0 @@
/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenAirInterface is distributed in the hope that 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 OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see <http://www.gnu.org/licenses/>.
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@eurecom.fr
Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
*******************************************************************************/
/******************************************************************************
AUTHOR : Lionel GAUTHIER
COMPANY : EURECOM
EMAIL : Lionel.Gauthier@eurecom.fr
*******************************************************************************/
# ifndef __RLC_UM_FSM_PROTO_EXTERN_H__
# define __RLC_UM_FSM_PROTO_EXTERN_H__
//-----------------------------------------------------------------------------
# include "platform.h"
# include "rlc_um_entity.h"
//-----------------------------------------------------------------------------
extern int rlc_um_fsm_notify_event (struct rlc_um_entity *rlcP, uint8_t eventP);
# endif
openair2/LAYER2/RLC/UM/rlc_um_proto_extern.h
-47
View File
@@ -1,47 +0,0 @@
/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenAirInterface is distributed in the hope that 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 OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see <http://www.gnu.org/licenses/>.
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@eurecom.fr
Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
*******************************************************************************/
/******************************************************************************
AUTHOR : Lionel GAUTHIER
COMPANY : EURECOM
EMAIL : Lionel.Gauthier@eurecom.fr
*******************************************************************************/
# ifndef __RLC_UM_PROTO_EXTERN_H__
# define __RLC_UM_PROTO_EXTERN_H__
# include "rlc_um_entity.h"
# include "mem_block.h"
extern void rlc_um_get_pdus (void *argP);
extern void rlc_um_rx (void *argP, struct mac_data_ind data_indP);
extern struct mac_status_resp rlc_um_mac_status_indication (void *rlcP, uint16_t no_tbP, uint16_t tb_sizeP, struct mac_status_ind tx_statusP);
extern struct mac_data_req rlc_um_mac_data_request (void *rlcP);
extern void rlc_um_mac_data_indication (void *rlcP, struct mac_data_ind data_indP);
extern void rlc_um_data_req (void *rlcP, struct mem_block *sduP);
# endif
openair2/LAYER2/RLC/UM/rlc_um_reassembly.c
-140
View File
@@ -1,140 +0,0 @@
/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenAirInterface is distributed in the hope that 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 OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see <http://www.gnu.org/licenses/>.
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@eurecom.fr
Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
*******************************************************************************/
/******************************************************************************
AUTHOR : Lionel GAUTHIER
COMPANY : EURECOM
EMAIL : Lionel.Gauthier@eurecom.fr
*******************************************************************************/
#ifndef USER_MODE
# define __NO_VERSION__
# ifdef RTAI
# include <rtai.h>
# else
/* RTLINUX */
# include <rtl.h>
# endif
#else
# include <stdio.h>
# include <stdlib.h>
#endif
//-----------------------------------------------------------------------------
#include "print.h"
#include "rlc_um_entity.h"
#include "rlc_um_structs.h"
#include "rlc_primitives.h"
#include "rlc_um_constants.h"
#include "lists_proto_extern.h"
#include "protocol_vars_extern.h"
#include "debug_l2.h"
#include "LAYER2/MAC/extern.h"
#define DEBUG_RLC_UM_DISPLAY_ASCII_DATA
#define DEBUG_RLC_UM_SEND_SDU
//-----------------------------------------------------------------------------
void
rlc_um_reassembly (uint8_t * srcP, uint16_t lengthP, struct rlc_um_entity *rlcP)
{
//-----------------------------------------------------------------------------
int sdu_max_size;
#ifdef DEBUG_RLC_UM_DISPLAY_ASCII_DATA
int index;
#endif
#ifdef DEBUG_RLC_UM_REASSEMBLY
msg ("[RLC_UM][RB %d][REASSEMBLY] reassembly() %d bytes\n", rlcP->rb_id, lengthP);
#endif
if ((rlcP->data_plane)) {
sdu_max_size = RLC_SDU_MAX_SIZE_DATA_PLANE;
} else {
sdu_max_size = RLC_SDU_MAX_SIZE_CONTROL_PLANE;
}
if (rlcP->output_sdu_in_construction == NULL) {
rlcP->output_sdu_in_construction = get_free_mem_block (sdu_max_size + sizeof (struct rlc_indication));
rlcP->output_sdu_size_to_write = 0;
}
if ((rlcP->output_sdu_in_construction)) {
#ifdef DEBUG_RLC_UM_DISPLAY_ASCII_DATA
msg ("[RLC_UM][RB %d][REASSEMBLY] DATA :", rlcP->rb_id);
for (index = 0; index < lengthP; index++) {
msg ("%02X-", srcP[index]);
}
msg ("\n");
#endif
memcpy (&rlcP->output_sdu_in_construction->data[rlcP->output_sdu_size_to_write + sizeof (struct rlc_indication)], srcP, lengthP);
rlcP->output_sdu_size_to_write += lengthP;
} else {
msg ("[RLC_UM][RB %d][REASSEMBLY] ERROR OUTPUT SDU IS NULL\n", rlcP->rb_id);
}
}
//-----------------------------------------------------------------------------
void
rlc_um_send_sdu (struct rlc_um_entity *rlcP)
{
//-----------------------------------------------------------------------------
if ((rlcP->output_sdu_in_construction)) {
#ifdef DEBUG_RLC_UM_SEND_SDU
msg ("[RLC_UM][RB %d][SEND_SDU] %d bytes \n", rlcP->rb_id, rlcP->output_sdu_size_to_write);
#endif
if (rlcP->output_sdu_size_to_write > 0) {
#ifdef DEBUG_RLC_STATS
rlcP->rx_sdus += 1;
#endif
((struct rlc_indication *) (rlcP->output_sdu_in_construction->data))->type = RLC_UM_DATA_IND;
((struct rlc_indication *) (rlcP->output_sdu_in_construction->data))->primitive.um_ind.data_size = rlcP->output_sdu_size_to_write;
#ifdef BENCH_QOS_L2
fprintf (bench_l2, "[SDU DELIVERY] FRAME %d SIZE %d RB %d RLC-UM %p\n", mac_xface->frame, rlcP->output_sdu_size_to_write, rlcP->rb_id, rlcP);
#endif
rlcP->rlc_data_ind (rlcP->upper_layer, rlcP->output_sdu_in_construction, rlcP->rb_id);
} else {
#ifdef DEBUG_RLC_UM_SEND_SDU
msg ("[RLC_UM][RB %d][SEND_SDU] ERROR SIZE 0\n", rlcP->rb_id, rlcP->output_sdu_size_to_write);
#endif
free_mem_block (rlcP->output_sdu_in_construction);
}
rlcP->output_sdu_in_construction = NULL;
rlcP->output_sdu_size_to_write = 0;
}
}
openair2/LAYER2/RLC/UM/rlc_um_reassembly_proto_extern.h
-42
View File
@@ -1,42 +0,0 @@
/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenAirInterface is distributed in the hope that 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 OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see <http://www.gnu.org/licenses/>.
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@eurecom.fr
Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
*******************************************************************************/
/******************************************************************************
AUTHOR : Lionel GAUTHIER
COMPANY : EURECOM
EMAIL : Lionel.Gauthier@eurecom.fr
*******************************************************************************/
# ifndef __RLC_UM_REASSEMBLY_PROTO_EXTERN_H__
# define __RLC_UM_REASSEMBLY_PROTO_EXTERN_H__
//-----------------------------------------------------------------------------
# include "rlc_um_entity.h"
//-----------------------------------------------------------------------------
extern void rlc_um_reassembly (uint8_t * srcP, uint16_t lengthP, struct rlc_um_entity *rlcP);
extern void rlc_um_send_sdu (struct rlc_um_entity *rlcP);
# endif
openair2/LAYER2/RLC/UM/rlc_um_receiver.c
-462
View File
@@ -1,462 +0,0 @@
/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenAirInterface is distributed in the hope that 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 OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see <http://www.gnu.org/licenses/>.
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@eurecom.fr
Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
*******************************************************************************/
/******************************************************************************
AUTHOR : Lionel GAUTHIER
COMPANY : EURECOM
EMAIL : Lionel.Gauthier@eurecom.fr
*******************************************************************************/
#ifndef USER_MODE
#define __NO_VERSION__
#ifdef RTAI
#include <rtai.h>
#else
/* RTLINUX */
#include <rtl.h>
#endif
#endif
//-----------------------------------------------------------------------------
#include "rlc_um_entity.h"
#include "rlc_um_constants.h"
#include "rlc_um_structs.h"
#include "rlc_primitives.h"
#include "rlc_def.h"
#include "mac_primitives.h"
#include "lists_proto_extern.h"
#include "rlc_um_reassembly_proto_extern.h"
#include "print.h"
#include "protocol_vars_extern.h"
#include "debug_l2.h"
#include "LAYER2/MAC/extern.h"
//-----------------------------------------------------------------------------
#ifdef TRACE_RLC_UM_RX_DECODE_LI
#define PRINT_RLC_UM_RX_DECODE_LI msg
#else
#define PRINT_RLC_UM_RX_DECODE_LI //
#endif
#ifdef TRACE_RLC_UM_RX
#define PRINT_RLC_UM_RX msg
#else
#define PRINT_RLC_UM_RX //
#endif
//-----------------------------------------------------------------------------
inline void
rlc_um_receive_15_process_waited_pdu (struct rlc_um_entity* rlc_pP,
struct rlc_um_rx_pdu_management* pdu_mngt_pP,
struct rlc_um_rx_data_pdu_struct* data_pP,
sdu_size_t tb_sizeP)
{
//-----------------------------------------------------------------------------
uint8_t* data_pdu_p = NULL;
sdu_size_t remaining_data_size = 0;
int nb_li = 0;
int li_index = 0;
sdu_size_t li[32];
if ((data_pP->byte1 & RLC_E_MASK) == (uint8_t) RLC_E_NEXT_FIELD_IS_DATA) {
rlc_um_reassembly ((uint8_t*) (&data_pP->li_data_7[0]), tb_sizeP - 1, rlc_pP, 0);
} else {
while ((li[nb_li] = ((((uint16_t) data_pP->li_data_7[nb_li << 1]) << 8) + data_pP->li_data_7[(nb_li << 1) + 1])) & RLC_E_NEXT_FIELD_IS_LI_E) {
li[nb_li] = li[nb_li] & (~(uint16_t) RLC_E_NEXT_FIELD_IS_LI_E);
nb_li++;
}
nb_li++; // count the last li
remaining_data_size = tb_sizeP - 1 - (nb_li << 1);
data_pdu_p = (uint8_t*) (&data_pP->li_data_7[nb_li << 1]);
while (li_index < nb_li) {
switch (li[li_index]) {
case RLC_LI_LAST_PDU_EXACTLY_FILLED:
rlc_um_send_sdu (rlc_pP);
break;
case RLC_LI_LAST_PDU_ONE_BYTE_SHORT:
rlc_pP->output_sdu_size_to_write -= 1;
rlc_um_send_sdu (rlc_pP);
break;
case RLC_LI_PDU_PIGGY_BACKED_STATUS: // ignore
case RLC_LI_PDU_PADDING:
remaining_data_size = 0;
break;
case RLC_LI_1ST_BYTE_SDU_IS_1ST_BYTE_PDU:
rlc_pP->output_sdu_size_to_write = 0;
break;
default: // li is length
remaining_data_size = remaining_data_size - (li[li_index] >> 1);
rlc_um_reassembly (data_pdu_p, (li[li_index] >> 1), rlc_pP);
data_pdu_p = (uint8_t*) ((uint64_t) data_pdu_p + (li[li_index] >> 1));
rlc_um_send_sdu (rlc_pP);
}
li_index++;
}
if ((remaining_data_size)) {
rlc_um_reassembly (data_pdu_p, remaining_data_size, rlc_pP);
remaining_data_size = 0;
}
}
rlc_pP->vr_us = (rlc_pP->vr_us + 1) & 127;
}
//-----------------------------------------------------------------------------
inline void
rlc_um_receive_7_process_waited_pdu (struct rlc_um_entity* rlc_pP, struct rlc_um_rx_pdu_management* pdu_mngtP, struct rlc_um_rx_data_pdu_struct* dataP,
uint16_t tb_sizeP)
{
//-----------------------------------------------------------------------------
uint8_t* data_pdu_p = NULL;
sdu_size_t remaining_data_size = 0;
int nb_li = 0;
int li_index = 0;
sdu_size_t li[32];
if ((dataP->byte1 & RLC_E_MASK) == (uint8_t) RLC_E_NEXT_FIELD_IS_DATA) {
rlc_um_reassembly ((uint8_t*) (&dataP->li_data_7[0]), tb_sizeP - 1, rlc_pP, 0);
} else {
while ((li[nb_li] = ((uint16_t) dataP->li_data_7[nb_li])) & RLC_E_NEXT_FIELD_IS_LI_E) {
li[nb_li] = li[nb_li] & (~(uint8_t) RLC_E_NEXT_FIELD_IS_LI_E);
nb_li++;
}
nb_li++; // count the last li
remaining_data_size = tb_sizeP - 1 - nb_li;
data_pdu_p = (uint8_t*) (&dataP->li_data_7[nb_li]);
while (li_index < nb_li) {
switch (li[li_index]) {
case (uint8_t) RLC_LI_LAST_PDU_EXACTLY_FILLED:
PRINT_RLC_UM_RX_DECODE_LI ("[RLC_UM %p] RX_7 PDU %p Li RLC_LI_LAST_PDU_EXACTLY_FILLED\n", rlc_pP, pdu_mngtP);
rlc_um_send_sdu (rlc_pP);
break;
case (uint8_t) RLC_LI_LAST_PDU_ONE_BYTE_SHORT:
PRINT_RLC_UM_RX_DECODE_LI ("[RLC_UM %p] RX_7 PDU %p Li RLC_LI_LAST_PDU_ONE_BYTE_SHORT\n", rlc_pP, pdu_mngtP);
rlc_pP->output_sdu_size_to_write -= 1;
rlc_um_send_sdu (rlc_pP);
break;
case (uint8_t) RLC_LI_PDU_PIGGY_BACKED_STATUS: // ignore
case (uint8_t) RLC_LI_PDU_PADDING:
PRINT_RLC_UM_RX_DECODE_LI ("[RLC_UM %p] RX_7 PDU %p Li RLC_LI_PDU_PADDING\n", rlc_pP, pdu_mngtP);
remaining_data_size = 0;
break;
case (uint8_t) RLC_LI_1ST_BYTE_SDU_IS_1ST_BYTE_PDU:
PRINT_RLC_UM_RX_DECODE_LI ("[RLC_UM %p] RX_7 PDU %p Li RLC_LI_1ST_BYTE_SDU_IS_1ST_BYTE_PDU\n", rlc_pP, pdu_mngtP);
rlc_pP->output_sdu_size_to_write = 0;
break;
default: // li is length
PRINT_RLC_UM_RX_DECODE_LI ("[RLC_UM %p] RX_7 PDU %p Li LI_SIZE %d Bytes\n", rlc_pP, pdu_mngtP, li[li_index] >> 1);
remaining_data_size = remaining_data_size - (li[li_index] >> 1);
rlc_um_reassembly (data_pdu_p, (li[li_index] >> 1), rlc_pP);
data_pdu_p = (uint8_t*) ((uint64_t) data_pdu_p + (li[li_index] >> 1));
rlc_um_send_sdu (rlc_pP);
}
li_index++;
}
if ((remaining_data_size)) {
rlc_um_reassembly (data_pdu_p, remaining_data_size, rlc_pP);
remaining_data_size = 0;
}
}
rlc_pP->vr_us = (rlc_pP->vr_us + 1) & 127;
}
//-----------------------------------------------------------------------------
inline void
rlc_um_receive_15_process_unsynchronized_pdu (struct rlc_um_entity* rlc_pP,
struct rlc_um_rx_pdu_management* pdu_mngt_pP,
struct rlc_um_rx_data_pdu_struct* data_pP,
sdu_size_t tb_sizeP)
{
//-----------------------------------------------------------------------------
uint8_t* data_pdu_p = NULL;
int nb_li = 0;
int li_index = 0;
sdu_size_t remaining_data_size = 0;
sdu_size_t li[32];
uint8_t start_processing = 0;
rlc_pP->output_sdu_size_to_write = 0;
if ((data_pP->byte1 & RLC_E_MASK) == (uint8_t) RLC_E_NEXT_FIELD_IS_DATA) {
return;
} else {
while ((li[nb_li] = ((((uint16_t) data_pP->li_data_7[nb_li << 1]) << 8) + data_pP->li_data_7[(nb_li << 1) + 1])) & RLC_E_NEXT_FIELD_IS_LI_E) {
li[nb_li] = li[nb_li] & (~(uint16_t) RLC_E_NEXT_FIELD_IS_LI_E);
nb_li++;
}
nb_li++; // count the last li
remaining_data_size = tb_sizeP - 1 - (nb_li << 1);
data_pdu_p = (uint8_t*) (&data_pP->li_data_7[nb_li << 1]);
while (li_index < nb_li) {
switch (li[li_index]) {
case RLC_LI_LAST_PDU_ONE_BYTE_SHORT:
case RLC_LI_LAST_PDU_EXACTLY_FILLED:
start_processing = 1;
break;
case RLC_LI_PDU_PIGGY_BACKED_STATUS: // ignore
case RLC_LI_PDU_PADDING:
remaining_data_size = 0;
break;
case RLC_LI_1ST_BYTE_SDU_IS_1ST_BYTE_PDU:
start_processing = 1;
rlc_pP->output_sdu_size_to_write = 0;
break;
default: // li is length
remaining_data_size = remaining_data_size - (li[li_index] >> 1);
if ((start_processing)) {
rlc_um_reassembly (data_pdu_p, (li[li_index] >> 1), rlc_pP, 0);
rlc_um_send_sdu (rlc_pP);
}
start_processing = 1;
data_pdu_p = (uint8_t*) ((uint64_t) data_pdu_p + (li[li_index] >> 1));
}
li_index++;
}
if ((remaining_data_size)) {
rlc_um_reassembly (data_pdu_p, remaining_data_size, rlc_pP);
remaining_data_size = 0;
}
}
rlc_pP->vr_us = (pdu_mngt_pP->sn + 1) & 127;
}
//-----------------------------------------------------------------------------
inline void
rlc_um_receive_7_process_unsynchronized_pdu (struct rlc_um_entity* rlc_pP,
struct rlc_um_rx_pdu_management* pdu_mngt_pP,
struct rlc_um_rx_data_pdu_struct* data_pP,
sdu_size_t tb_sizeP)
{
//-----------------------------------------------------------------------------
uint8_t* data_pdu_p = NULL;
int nb_li = 0;
int li_index = 0;
sdu_size_t remaining_data_size = 0;
sdu_size_t li[32];
uint8_t start_processing = 0;
rlc_pP->output_sdu_size_to_write = 0;
if ((data_pP->byte1 & RLC_E_MASK) == (uint8_t) RLC_E_NEXT_FIELD_IS_DATA) {
return;
} else {
while ((li[nb_li] = ((uint16_t) data_pP->li_data_7[nb_li])) & RLC_E_NEXT_FIELD_IS_LI_E) {
li[nb_li] = li[nb_li] & (~(uint8_t) RLC_E_NEXT_FIELD_IS_LI_E);
nb_li++;
}
nb_li++; // count the last li
remaining_data_size = tb_sizeP - 1 - nb_li;
data_pdu_p = (uint8_t*) (&data_pP->li_data_7[nb_li]);
while (li_index < nb_li) {
switch (li[li_index]) {
case (uint8_t) RLC_LI_LAST_PDU_ONE_BYTE_SHORT:
case (uint8_t) RLC_LI_LAST_PDU_EXACTLY_FILLED:
start_processing = 1;
break;
case (uint8_t) RLC_LI_PDU_PIGGY_BACKED_STATUS: // ignore
case (uint8_t) RLC_LI_PDU_PADDING:
remaining_data_size = 0;
break;
case (uint8_t) RLC_LI_1ST_BYTE_SDU_IS_1ST_BYTE_PDU:
start_processing = 1;
rlc_pP->output_sdu_size_to_write = 0;
break;
default: // li is length
remaining_data_size = remaining_data_size - (li[li_index] >> 1);
if ((start_processing)) {
rlc_um_reassembly (data_pdu_p, (li[li_index] >> 1), rlc_pP, 0);
rlc_um_send_sdu (rlc_pP);
}
start_processing = 1;
data_pdu_p = (uint8_t*) ((uint64_t) data_pdu_p + (li[li_index] >> 1));
}
li_index++;
}
if ((remaining_data_size)) {
rlc_um_reassembly (data_pdu_p, remaining_data_size, rlc_pP);
remaining_data_size = 0;
}
}
rlc_pP->vr_us = (pdu_mngt_pP->sn + 1) & 127;
}
//-----------------------------------------------------------------------------
void
rlc_um_receive_15 (struct rlc_um_entity* rlc_pP, struct mac_data_ind data_indP)
{
//-----------------------------------------------------------------------------
struct rlc_um_rx_data_pdu_struct* data_p = NULL;
struct rlc_um_rx_pdu_management* pdu_mngt_p = NULL;
struct mem_block* tb_p = NULL;
uint8_t* first_byte_p = NULL;
sdu_size_t tb_size_in_bytes = 0;
uint8_t first_bit = 0;
uint8_t bits_to_shift = 0;
uint8_t bits_to_shift_last_loop = 0;
while ((tb_p = remove_up_head (&data_indP.data))) {
if (!(((struct mac_tb_ind*) (tb_p->data))->error_indication)) {
first_byte_p = ((struct mac_tb_ind*) (tb_p->data))->data_ptr;
pdu_mngt_p = (struct rlc_um_rx_pdu_management*) (tb_p->data);
tb_size_in_bytes = data_indP.tb_size;
first_bit = ((struct mac_tb_ind*) (tb_p->data))->first_bit;
if (first_bit > 0) {
// shift data of transport_block TO CHECK
bits_to_shift_last_loop = 0;
while ((tb_size_in_bytes)) {
bits_to_shift = first_byte_p[tb_size_in_bytes] >> (8 - first_bit);
first_byte_p[tb_size_in_bytes] = (first_byte_p[tb_size_in_bytes] << first_bit) | (bits_to_shift_last_loop);
tb_size_in_bytes -= 1;
bits_to_shift_last_loop = bits_to_shift;
}
first_byte_p[0] = (first_byte_p[0] << first_bit) | (bits_to_shift_last_loop);
}
pdu_mngt_p->first_byte = first_byte_p;
data_p = (struct rlc_um_rx_data_pdu_struct*) (first_byte_p);
pdu_mngt_p->sn = data_p->byte1 >> 1;
PRINT_RLC_UM_RX ("[RLC_UM][RB %d] RX PDU SN %02X hex\n", rlc_pP->rb_id, pdu_mngt_p->sn);
if (pdu_mngt_p->sn == rlc_pP->vr_us) {
rlc_um_receive_15_process_waited_pdu (rlc_pP, pdu_mngt_p, data_p, data_indP.tb_size);
} else {
rlc_um_receive_15_process_unsynchronized_pdu (rlc_pP, pdu_mngt_p, data_p, data_indP.tb_size);
}
} else {
PRINT_RLC_UM_RX ("[RLC_UM][RB %d] RX PDU WITH ERROR INDICATED BY LOWER LAYERS -> GARBAGE\n", rlc_pP->rb_id);
}
free_mem_block (tb_p);
}
}
//-----------------------------------------------------------------------------
void
rlc_um_receive_7 (struct rlc_um_entity* rlc_pP, struct mac_data_ind data_indP)
{
//-----------------------------------------------------------------------------
struct rlc_um_rx_data_pdu_struct* data_p = NULL;
struct rlc_um_rx_pdu_management* pdu_mngt_p = NULL;
struct mem_block* tb_p = NULL;
uint8_t* first_byte_p = NULL;
sdu_size_t tb_size_in_bytes = 0;
uint8_t first_bit = 0;
uint8_t bits_to_shift = 0;
uint8_t bits_to_shift_last_loop = 0;
while ((tb_p = remove_up_head (&data_indP.data))) {
if (!(((struct mac_tb_ind*) (tb_p->data))->error_indication)) {
#ifdef DEBUG_RLC_STATS
rlc_pP->rx_pdus += 1;
#endif
first_byte_p = ((struct mac_tb_ind*) (tb_p->data))->data_ptr;
pdu_mngt_p = (struct rlc_um_rx_pdu_management*) (tb_p->data);
tb_size_in_bytes = data_indP.tb_size;
first_bit = ((struct mac_tb_ind*) (tb_p->data))->first_bit;
if (first_bit > 0) {
// shift data of transport_block TO CHECK
bits_to_shift_last_loop = 0;
while ((tb_size_in_bytes)) {
bits_to_shift = first_byte_p[tb_size_in_bytes] >> (8 - first_bit);
first_byte_p[tb_size_in_bytes] = (first_byte_p[tb_size_in_bytes] << first_bit) | (bits_to_shift_last_loop);
tb_size_in_bytes -= 1;
bits_to_shift_last_loop = bits_to_shift;
}
first_byte_p[0] = (first_byte_p[0] << first_bit) | (bits_to_shift_last_loop);
}
pdu_mngt_p->first_byte = first_byte_p;
data_p = (struct rlc_um_rx_data_pdu_struct*) (first_byte_p);
pdu_mngt_p->sn = data_p->byte1 >> 1;
PRINT_RLC_UM_RX ("[RLC_UM][RB %d] RX7 PDU SN %d VR(US) %d\n", rlc_pP->rb_id, pdu_mngt_p->sn, rlc_pP->vr_us);
if (pdu_mngt_p->sn == rlc_pP->vr_us) {
rlc_um_receive_7_process_waited_pdu (rlc_pP, pdu_mngt_p, data_p, data_indP.tb_size);
} else {
rlc_um_receive_7_process_unsynchronized_pdu (rlc_pP, pdu_mngt_p, data_p, data_indP.tb_size);
}
} else {
#ifdef DEBUG_RLC_STATS
rlc_pP->rx_pdus_in_error += 1;
#endif
#ifdef TRACE_RLC_UM_RX
pdu_mngt_p = (struct rlc_um_rx_pdu_management*) (tb->data);
PRINT_RLC_UM_RX ("[RLC_UM][RB %d] RX7 PDU SN %02X hex??? WITH ERROR INDICATED BY LOWER LAYERS -> GARBAGE\n", rlc_pP->rb_id, pdu_mngt_p->sn);
#endif
}
free_mem_block (tb_p);
}
}
openair2/LAYER2/RLC/UM/rlc_um_receiver_proto_extern.h
-43
View File
@@ -1,43 +0,0 @@
/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenAirInterface is distributed in the hope that 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 OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see <http://www.gnu.org/licenses/>.
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@eurecom.fr
Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
*******************************************************************************/
/******************************************************************************
AUTHOR : Lionel GAUTHIER
COMPANY : EURECOM
EMAIL : Lionel.Gauthier@eurecom.fr
*******************************************************************************/
# ifndef __RLC_UM_RECEIVER_PROTO_EXTERN_H__
# define __RLC_UM_RECEIVER_PROTO_EXTERN_H__
# include "rlc_um_entity.h"
# include "mac_primitives.h"
void rlc_um_receive_15 (struct rlc_um_entity *rlcP, struct mac_data_ind data_indP);
void rlc_um_receive_7 (struct rlc_um_entity *rlcP, struct mac_data_ind data_indP);
# endif
openair2/LAYER2/RLC/UM/rlc_um_segment.c
-804
View File
@@ -1,804 +0,0 @@
/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenAirInterface is distributed in the hope that 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 OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see <http://www.gnu.org/licenses/>.
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@eurecom.fr
Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
*******************************************************************************/
/******************************************************************************
AUTHOR : Lionel GAUTHIER
COMPANY : EURECOM
EMAIL : Lionel.Gauthier@eurecom.fr
*******************************************************************************/
#ifndef USER_MODE
#define __NO_VERSION__
#ifdef RTAI
#include <rtai.h>
#else
/* RTLINUX */
#include <rtl.h>
#endif
#endif
#include "print.h"
#include "lists_proto_extern.h"
#include "rlc_um_entity.h"
#include "rlc_um_structs.h"
#include "rlc_primitives.h"
#include "rlc_def.h"
#include "rlc_um_constants.h"
#include "debug_l2.h"
#ifdef DEBUG_RLC_UM_SEGMENT
#define PRINT_RLC_UM_SEGMENT msg
#else
#define PRINT_RLC_UM_SEGMENT
//
#endif
#ifdef DEBUG_RLC_UM_SEGMENT_ENCODE
#define PRINT_RLC_UM_SEGMENT_ENCODE msg
#else
#define PRINT_RLC_UM_SEGMENT_ENCODE
//
#endif
#ifdef DEBUG_RLC_UM_SEGMENT_FILL_DATA
#define PRINT_RLC_UM_SEGMENT_FILL_DATA msg
#else
#define PRINT_RLC_UM_SEGMENT_FILL_DATA //
#endif
#ifdef DEBUG_RLC_UM_DISCARD_SDU
#define PRINT_RLC_UM_DISCARD_SDU msg
#else
#define PRINT_RLC_UM_DISCARD_SDU //
#endif
//-----------------------------------------------------------------------------
mem_block* rlc_um_build_pdu_with_only_2li (struct rlc_um_entity* rlcP, uint16_t li0P, uint16_t li1P);
inline void rlc_um_encode_pdu_15 (struct rlc_um_entity* rlcP, struct rlc_um_tx_data_pdu_struct* rlc_headerP, struct rlc_um_tx_pdu_management* pdu_mngtP,
uint16_t* li_arrayP, uint8_t nb_liP);
inline void rlc_um_encode_pdu_7 (struct rlc_um_entity* rlcP, struct rlc_um_tx_data_pdu_struct* rlc_headerP, struct rlc_um_tx_pdu_management* pdu_mngtP,
uint16_t* li_arrayP, uint8_t nb_liP);
inline void rlc_um_fill_pdus (struct rlc_um_entity* rlcP, list_up* pdusP, list_up* segmented_sdusP);
void rlc_um_segment_15 (struct rlc_um_entity* rlcP);
//-----------------------------------------------------------------------------
mem_block*
rlc_um_build_pdu_with_only_2li (struct rlc_um_entity* rlcP, uint16_t li0P, uint16_t li1P)
{
//-----------------------------------------------------------------------------
struct rlc_um_tx_data_pdu_struct* rlc_header;
struct rlc_um_tx_pdu_management* pdu_mngt;
mem_block* pdu;
if (!(pdu = get_free_mem_block (rlcP->data_pdu_size + sizeof (struct rlc_um_tx_data_pdu_management) + GUARD_CRC_LIH_SIZE))) {
msg ("[RLC_UM][RB %d] BUILD PDU 2 LI ERROR COULD NOT GET NEW PDU, EXIT...BEFORE CRASH\n", rlcP->rb_id);
return NULL;
}
PRINT_RLC_UM_SEGMENT ("[RLC_UM][RB %d] SEGMENT PDU SN %d SET LIs %04X %04X\n", rlcP->rb_id, rlcP->vt_us, li0P, li1P);
rlc_header = (struct rlc_um_tx_data_pdu_struct*) (&pdu->data[sizeof (struct rlc_um_tx_data_pdu_management)]);
pdu_mngt = (struct rlc_um_tx_pdu_management*) (pdu->data);
memset (pdu->data, 0, sizeof (struct rlc_um_tx_pdu_management));
if (rlcP->data_pdu_size > 125) {
rlc_header->li_data_7[0] = (uint8_t) (li0P >> 8);
rlc_header->li_data_7[1] = (uint8_t) (li0P | RLC_E_NEXT_FIELD_IS_LI_E);
rlc_header->li_data_7[2] = (uint8_t) (li1P >> 8);
rlc_header->li_data_7[3] = (uint8_t) li1P;
rlcP->li_length_15_was_used_for_previous_pdu = 1;
} else {
rlc_header->li_data_7[0] = (uint8_t) (li0P | RLC_E_NEXT_FIELD_IS_LI_E);
rlc_header->li_data_7[1] = (uint8_t) li1P;
rlcP->li_length_15_was_used_for_previous_pdu = 0;
}
rlc_header->byte1 = (rlcP->vt_us << 1) | RLC_E_NEXT_FIELD_IS_LI_E;
// inc vt_us
#ifdef DEBUG_RLC_UM_VT_US
msg ("[RLC_UM][RB %d] Inc VT(US) in rlc_um_build_pdu_with_only_2li()\n", rlcP->rb_id);
#endif
rlcP->vt_us = (rlcP->vt_us + 1) & 0x7F;
pdu_mngt->first_byte = (uint8_t*) rlc_header;
pdu_mngt->data_size = 0;
pdu_mngt->payload = NULL;
return pdu;
}
//-----------------------------------------------------------------------------
inline void
rlc_um_encode_pdu_15 (struct rlc_um_entity* rlcP, struct rlc_um_tx_data_pdu_struct* rlc_headerP, struct rlc_um_tx_pdu_management* pdu_mngtP,
uint16_t* li_arrayP, uint8_t nb_liP)
{
//-----------------------------------------------------------------------------
uint8_t li_index;
#ifdef DEBUG_RLC_UM_SEGMENT
int index;
msg ("[RLC_UM %p] SEGMENT_15 PDU SN %d SET LIs: ", rlcP, rlcP->vt_us);
for (index = 0; index < nb_liP; index++) {
msg ("%04X ", li_arrayP[index]);
}
msg ("\n");
#endif
rlc_headerP->byte1 = (rlcP->vt_us << 1);
// inc vt_us
#ifdef DEBUG_RLC_UM_VT_US
msg ("[RLC_UM %p] Inc VT(US) in rlc_um_encode_pdu_15\n", rlcP);
#endif
rlcP->vt_us = (rlcP->vt_us + 1) & 127;
nb_liP = nb_liP << 1;
pdu_mngtP->payload = (uint8_t*) ((uint32_t) (&rlc_headerP->li_data_7[nb_liP]));
if (nb_liP) {
rlc_headerP->byte1 |= RLC_E_NEXT_FIELD_IS_LI_E;
li_index = 0;
// COPY LI
while (li_index < nb_liP) {
rlc_headerP->li_data_7[li_index] = li_arrayP[li_index >> 1] >> 8;
li_index += 1;
rlc_headerP->li_data_7[li_index] = li_arrayP[li_index >> 1] | RLC_E_NEXT_FIELD_IS_LI_E;
li_index += 1;
}
rlc_headerP->li_data_7[li_index - 1] = rlc_headerP->li_data_7[li_index - 1] ^ (uint8_t) RLC_E_NEXT_FIELD_IS_LI_E;
}
}
//-----------------------------------------------------------------------------
inline void
rlc_um_encode_pdu_7 (struct rlc_um_entity* rlcP, struct rlc_um_tx_data_pdu_struct* rlc_headerP, struct rlc_um_tx_pdu_management* pdu_mngtP, uint16_t* li_arrayP,
uint8_t nb_liP)
{
//-----------------------------------------------------------------------------
uint8_t li_index;
#ifdef DEBUG_RLC_UM_SEGMENT_ENCODE
int index;
msg ("[RLC_UM %p] SEGMENT_7 PDU %p SN %d SET LIs: ", rlcP, pdu_mngtP, rlcP->vt_us);
for (index = 0; index < nb_liP; index++) {
msg ("%04X ", li_arrayP[index]);
}
msg ("\n");
#endif
rlc_headerP->byte1 = (rlcP->vt_us << 1);
// inc vt_us
#ifdef DEBUG_RLC_UM_VT_US
msg ("[RLC_UM %p] Inc VT(US) in rlc_um_encode_pdu_7()\n", rlcP);
#endif
rlcP->vt_us = (rlcP->vt_us + 1) & 127;
pdu_mngtP->payload = (uint8_t*) ((uint32_t) (&rlc_headerP->li_data_7[nb_liP]));
if (nb_liP) {
rlc_headerP->byte1 |= RLC_E_NEXT_FIELD_IS_LI_E;
li_index = 0;
// COPY LI
while (li_index < nb_liP) {
rlc_headerP->li_data_7[li_index] = (uint8_t) (li_arrayP[li_index]) | RLC_E_NEXT_FIELD_IS_LI_E;
li_index += 1;
}
rlc_headerP->li_data_7[li_index - 1] = rlc_headerP->li_data_7[li_index - 1] ^ (uint8_t) RLC_E_NEXT_FIELD_IS_LI_E;
}
}
//-----------------------------------------------------------------------------
inline void
rlc_um_fill_pdus (struct rlc_um_entity* rlcP, list_up* pdusP, list_up* segmented_sdusP)
{
//-----------------------------------------------------------------------------
mem_block* pdu;
mem_block* sdu;
uint8_t* data_sdu = NULL;
uint8_t* data_pdu;
struct rlc_um_tx_data_pdu_struct* rlc_header;
struct rlc_um_tx_pdu_management* pdu_mngt;
struct rlc_um_tx_sdu_management* sdu_mngt;
uint16_t pdu_remaining_size;
uint16_t sdu_available_size;
pdu = NULL;
sdu = NULL;
// dispatch sdus
while ((pdu = remove_up_head (pdusP))) {
pdu_mngt = (struct rlc_um_tx_pdu_management*) (pdu->data);
rlc_header = (struct rlc_um_tx_data_pdu_struct*) (pdu_mngt->first_byte);
pdu_remaining_size = pdu_mngt->data_size;
data_pdu = (uint8_t*) pdu_mngt->payload;
#ifdef DEBUG_RLC_UM_SEGMENT_FILL_DATA
msg ("[RLC_UM %p] SEGMENT FILL GET PDU %p REMAINING SIZE=%d\n", rlcP, pdu, pdu_remaining_size);
#endif
if (pdu_remaining_size > 0) {
// fill the pdu with data of sdu
while (pdu) {
if (sdu == NULL) {
sdu = remove_up_head (segmented_sdusP);
sdu_mngt = (struct rlc_um_tx_sdu_management*) (sdu->data);
data_sdu = &sdu->data[sizeof (struct rlc_um_tx_sdu_management) + sdu_mngt->sdu_segmented_size];
sdu_available_size = sdu_mngt->sdu_size - sdu_mngt->sdu_remaining_size - sdu_mngt->sdu_segmented_size;
#ifdef DEBUG_RLC_UM_SEGMENT_FILL_DATA
msg ("[RLC_UM %p] SEGMENT FILL GET SDU %p AVAILABLE_SZ=%d (SZ %d REMAIN_SZ %d SEGMENT_SZ %d)\n", rlcP, sdu, sdu_available_size, sdu_mngt->sdu_size,
sdu_mngt->sdu_remaining_size, sdu_mngt->sdu_segmented_size);
#endif
}
// copy the whole remaining data of the sdu in the remaining area of the pdu
if (pdu_remaining_size >= sdu_available_size) {
memcpy (data_pdu, data_sdu, sdu_available_size);
#ifdef DEBUG_RLC_UM_SEGMENT_FILL_DATA
msg ("[RLC_UM %p] SEGMENT FILL PDU %p WITH SDU %p %p <- %p %d bytes (SZ %d REMAIN_SZ %d SEGMENT_SZ %d)\n", rlcP, pdu, sdu, data_pdu, data_sdu,
sdu_available_size,
sdu_mngt->sdu_size, sdu_mngt->sdu_remaining_size, sdu_mngt->sdu_segmented_size);
#endif
pdu_remaining_size -= sdu_available_size;
sdu_mngt->sdu_segmented_size += sdu_available_size;
data_pdu = (uint8_t*) ((uint32_t) data_pdu + sdu_available_size);
sdu_available_size = 0;
// dispatch the sdu
free_mem_block (sdu);
sdu = NULL;
// dispatch the pdu
if (pdu_remaining_size == 0) {
((struct mac_tb_req*) (pdu->data))->rlc = NULL;
((struct mac_tb_req*) (pdu->data))->data_ptr = &rlc_header->byte1;
((struct mac_tb_req*) (pdu->data))->first_bit = 0;
((struct mac_tb_req*) (pdu->data))->tb_size_in_bits = rlcP->data_pdu_size_in_bits;
add_cnt_up_tail (pdu, &rlcP->pdus_to_mac_layer);
pdu = NULL;
} else {
}
// copy some data of the sdu in the whole remaining area of the pdu
} else {
memcpy (data_pdu, data_sdu, pdu_remaining_size);
#ifdef DEBUG_RLC_UM_SEGMENT_FILL_DATA
msg ("[RLC_UM %p] SEGMENT FILL PDU %p WITH SDU %p %p <- %p %d bytes (SZ %d REMAIN_SZ %d SEGMENT_SZ %d)\n", rlcP, pdu, sdu, data_pdu, data_sdu,
pdu_remaining_size,
sdu_mngt->sdu_size, sdu_mngt->sdu_remaining_size, sdu_mngt->sdu_segmented_size);
#endif
sdu_mngt->sdu_segmented_size += pdu_remaining_size;
sdu_available_size -= pdu_remaining_size;
data_sdu = (uint8_t*) ((uint32_t) data_sdu + (uint32_t) pdu_remaining_size);
// dispatch the pdu
((struct mac_tb_req*) (pdu->data))->rlc = NULL;
((struct mac_tb_req*) (pdu->data))->data_ptr = &rlc_header->byte1;
((struct mac_tb_req*) (pdu->data))->first_bit = 0;
((struct mac_tb_req*) (pdu->data))->tb_size_in_bits = rlcP->data_pdu_size_in_bits;
add_cnt_up_tail (pdu, &rlcP->pdus_to_mac_layer);
pdu = NULL;
pdu_remaining_size = 0;
}
}
} else { // end if pdu_remaining_size > 0
if (pdu) {
((struct mac_tb_req*) (pdu->data))->rlc = NULL;
((struct mac_tb_req*) (pdu->data))->data_ptr = &rlc_header->byte1;
((struct mac_tb_req*) (pdu->data))->first_bit = 0;
((struct mac_tb_req*) (pdu->data))->tb_size_in_bits = rlcP->data_pdu_size_in_bits;
add_cnt_up_tail (pdu, &rlcP->pdus_to_mac_layer);
pdu = NULL;
}
}
}
free_up (segmented_sdusP);
}
//-----------------------------------------------------------------------------
void
rlc_um_segment_15 (struct rlc_um_entity* rlcP)
{
//-----------------------------------------------------------------------------
list_up segmented_sdus; // the copying of sdu data is done after identification of all LIs to put in pdu
list_up pdus;
struct rlc_um_tx_sdu_management* sdu_mngt;
struct rlc_um_tx_pdu_management* pdu_mngt;
struct rlc_um_tx_data_pdu_struct* rlc_header;
mem_block* pdu;
mem_block* sdu_copy;
int16_t pdu_remaining_size;
uint16_t li[RLC_UM_SEGMENT_NB_MAX_LI_PER_PDU];
uint8_t discard_go_on = 1;
uint8_t li_index = 0;
uint8_t nb_pdu_to_transmit = rlcP->nb_pdu_requested_by_mac;
pdu = NULL;
init_up (&segmented_sdus, NULL); // param string identifying the list is NULL
init_up (&pdus, NULL); // param string identifying the list is NULL
// DISCARD of SDUs : TIMER_BASED_NO_EXPLICIT
// from 3GPP TS 25.322 V4.2.0
// Upon expiry of the timer Timer_Discard in the Sender, the Sender shall:
// - discard the associated SDU;
// - for the first UMD PDU to be transmitted after the discard operation, the Sender shall:
// - increment VT(US) so that the "Sequence Number" field in this UMD PDU is incremented with two
// compared with the previous UMD PDU;
// - fill the first data octet in this UMD PDU with the first octet of an RLC SDU;
// - set the first "Length Indicator" in this UMD PDU to indicate that the previous RLC PDU
// was exactly filled with the last segment of an RLC SDU (to avoid that the Receiver unnecessarily
// discards an extra SDU).
if ((rlcP->sdu_discard_mode & RLC_SDU_DISCARD_TIMER_BASED_NO_EXPLICIT)) {
discard_go_on = 1;
while ((rlcP->input_sdus[rlcP->current_sdu_index]) && discard_go_on) {
if ((*rlcP->frame_tick_milliseconds - ((struct rlc_um_tx_sdu_management*) (rlcP->input_sdus[rlcP->current_sdu_index]->data))->sdu_creation_time) >=
rlcP->timer_discard_init) {
PRINT_RLC_UM_DISCARD_SDU ("[RLC_UM %p] SDU DISCARDED : TIMED OUT %d ms\n", rlcP,
*rlcP->frame_tick_milliseconds - ((struct rlc_um_tx_sdu_management*) (rlcP->input_sdus[rlcP->current_sdu_index]->data))->sdu_creation_time);
free_mem_block (rlcP->input_sdus[rlcP->current_sdu_index]);
rlcP->input_sdus[rlcP->current_sdu_index] = NULL;
#ifdef DEBUG_RLC_UM_VT_US
msg ("[RLC_UM %p] Inc VT(US) in discarding sdu in rlc_um_segment_15()\n", rlcP);
#endif
rlcP->vt_us = (rlcP->vt_us + 1) & 0x7F;
rlcP->li_one_byte_short_to_add_in_next_pdu = 0;
rlcP->li_exactly_filled_to_add_in_next_pdu = 1;
rlcP->current_sdu_index = (rlcP->current_sdu_index + 1) % rlcP->size_input_sdus_buffer;
} else {
discard_go_on = 0;
}
}
}
while ((rlcP->input_sdus[rlcP->current_sdu_index]) && (nb_pdu_to_transmit > 0)) {
sdu_mngt = ((struct rlc_um_tx_sdu_management*) (rlcP->input_sdus[rlcP->current_sdu_index]->data));
// pdu management
if (!pdu) {
if (!(pdu = get_free_mem_block (rlcP->data_pdu_size + sizeof (struct rlc_um_tx_data_pdu_management) + GUARD_CRC_LIH_SIZE))) {
msg ("[RLC_UM %p][SEGMENT] ERROR COULD NOT GET NEW PDU, EXIT\n");
return;
}
li_index = 0;
pdu_remaining_size = rlcP->data_pdu_size - 2; // 2= size of header, minimum
pdu_mngt = (struct rlc_um_tx_pdu_management*) (pdu->data);
memset (pdu->data, 0, sizeof (struct rlc_um_tx_pdu_management));
pdu_mngt->first_byte = &pdu->data[sizeof (struct rlc_um_tx_data_pdu_management)];
rlc_header = (struct rlc_um_tx_data_pdu_struct*) (pdu_mngt->first_byte);
// management of previous pdu
// In the case where 15-bit "Length Indicators" are used for the previous PDU and the last segment
// of an RLC SDU is one octet short of exactly filling the PDU:
// - if a 15-bit "Length Indicator" is used for the following PDU:
// - the "Length Indicator" with value "111 1111 1111 1011" shall be placed as the first "Length Indicator" in the following PDU;
// - the remaining one octet in the previous PDU shall be padded by the Sender and ignored at the Receiver
// though there is no "Length Indicator" indicating the existence of Padding;
// - in case this SDU was the last one to be transmitted:
// - a RLC PDU consisting of an RLC Header with "Length Indicator" "111 1111 1111 1011" followed by a padding
// "Length Indicator" and padding may be transmitted;
// - if a 7-bit "Length Indicator" is used for the following PDU:
// - if RLC is configured for UM mode:
// - the "Length Indicator" with value "000 0000" shall be placed as the first "Length indicator"
// in the following PDU and its SN shall be incremented by 2 before it is transmitted.
if ((rlcP->li_one_byte_short_to_add_in_next_pdu)) {
li[li_index++] = RLC_LI_LAST_PDU_ONE_BYTE_SHORT;
rlcP->li_one_byte_short_to_add_in_next_pdu = 0;
pdu_remaining_size -= 2;
if (sdu_mngt->use_special_li) {
li[li_index++] = RLC_LI_1ST_BYTE_SDU_IS_1ST_BYTE_PDU;
pdu_remaining_size -= 2;
}
} else if (rlcP->li_exactly_filled_to_add_in_next_pdu) {
li[li_index++] = RLC_LI_LAST_PDU_EXACTLY_FILLED;
rlcP->li_exactly_filled_to_add_in_next_pdu = 0;
pdu_remaining_size -= 2;
if (sdu_mngt->use_special_li) {
li[li_index++] = RLC_LI_1ST_BYTE_SDU_IS_1ST_BYTE_PDU;
pdu_remaining_size -= 2;
}
}
}
if ((pdu_remaining_size - sdu_mngt->sdu_remaining_size) < 0) {
pdu_mngt->data_size += pdu_remaining_size;
rlc_um_encode_pdu_15 (rlcP, rlc_header, pdu_mngt, li, li_index);
add_up_tail (pdu, &pdus);
rlcP->li_length_15_was_used_for_previous_pdu = 1;
pdu = NULL;
nb_pdu_to_transmit -= 1;
sdu_mngt->sdu_remaining_size = sdu_mngt->sdu_remaining_size - pdu_remaining_size;
sdu_mngt->use_special_li = 0; // this field is not active when the sdu does not start at the begining of a pdu
} else {
if ((pdu_remaining_size - sdu_mngt->sdu_remaining_size) >= 2) {
pdu_remaining_size = pdu_remaining_size - sdu_mngt->sdu_remaining_size - 2; // size of li length
pdu_mngt->data_size += sdu_mngt->sdu_remaining_size;
li[li_index++] = sdu_mngt->sdu_remaining_size << 1;
sdu_mngt->sdu_remaining_size = 0;
add_up_tail (rlcP->input_sdus[rlcP->current_sdu_index], &segmented_sdus);
rlcP->input_sdus[rlcP->current_sdu_index] = NULL;
rlcP->buffer_occupancy -= sdu_mngt->sdu_size;
rlcP->nb_sdu -= 1;
rlcP->current_sdu_index = (rlcP->current_sdu_index + 1) % rlcP->size_input_sdus_buffer;
if (rlcP->nb_sdu == 0) {
if (pdu_remaining_size >= 2) {
li[li_index++] = RLC_LI_PDU_PADDING;
rlc_um_encode_pdu_15 (rlcP, rlc_header, pdu_mngt, li, li_index);
add_up_tail (pdu, &pdus);
rlcP->li_length_15_was_used_for_previous_pdu = 1;
pdu = NULL;
nb_pdu_to_transmit -= 1;
} else {
if (pdu_remaining_size == 0) {
rlc_um_encode_pdu_15 (rlcP, rlc_header, pdu_mngt, li, li_index);
add_up_tail (pdu, &pdus);
pdu = NULL;
nb_pdu_to_transmit -= 1;
rlcP->li_exactly_filled_to_add_in_next_pdu = 1;
rlcP->li_length_15_was_used_for_previous_pdu = 1;
// In the case where 15-bit "Length Indicators" are used for the previous PDU and the last segment
// of an RLC SDU is one octet short of exactly filling the PDU:
// - if a 15-bit "Length Indicator" is used for the following PDU:
// - the "Length Indicator" with value "111 1111 1111 1011" shall be placed as the first "Length Indicator" in the following PDU;
// - the remaining one octet in the previous PDU shall be padded by the Sender and ignored at the Receiver
// though there is no "Length Indicator" indicating the existence of Padding;
// - in case this SDU was the last one to be transmitted:
// - a RLC PDU consisting of an RLC Header with "Length Indicator" "111 1111 1111 1011" followed by a padding
// "Length Indicator" and padding may be transmitted;
} else if (pdu_remaining_size == 1) { // one byte remaining
rlc_um_encode_pdu_15 (rlcP, rlc_header, pdu_mngt, li, li_index);
add_up_tail (pdu, &pdus);
pdu = NULL;
nb_pdu_to_transmit -= 1;
rlcP->li_one_byte_short_to_add_in_next_pdu = 1;
rlcP->li_length_15_was_used_for_previous_pdu = 1;
}
}
}
/*
} else { // else:if (!last_sdu)
} // the while loop continue with the same pdu */
} else if ((pdu_remaining_size - sdu_mngt->sdu_remaining_size) == 0) {
// from 3GPP TS 25.322 V4.2.0
//In the case where the end of the last segment of an RLC SDU exactly ends at the end of a PDU and there is
// no "Length Indicator" that indicates the end of the RLC SDU:
// - if 7-bit "Length Indicator" is used:
// - a "Length Indicator" with value "000 0000" shall be placed as the first "Length Indicator" in the following PDU;
// - if 15-bit "Length Indicator" is used:
// - a "Length Indicator" with value "000 0000 0000 0000" shall be placed as the first "Length Indicator" in the following PDU.
pdu_mngt->data_size += pdu_remaining_size;
rlc_um_encode_pdu_15 (rlcP, rlc_header, pdu_mngt, li, li_index);
add_up_tail (pdu, &pdus);
pdu = NULL;
nb_pdu_to_transmit -= 1;
sdu_mngt->sdu_remaining_size = 0;
add_up_tail (rlcP->input_sdus[rlcP->current_sdu_index], &segmented_sdus);
rlcP->input_sdus[rlcP->current_sdu_index] = NULL;
rlcP->buffer_occupancy -= sdu_mngt->sdu_size;
rlcP->nb_sdu -= 1;
rlcP->current_sdu_index = (rlcP->current_sdu_index + 1) % rlcP->size_input_sdus_buffer;
rlcP->li_exactly_filled_to_add_in_next_pdu = 1;
rlcP->li_length_15_was_used_for_previous_pdu = 1;
} else if ((pdu_remaining_size - sdu_mngt->sdu_remaining_size) == 1) { // one byte remaining
// from 3GPP TS 25.322 V4.2.0
// In the case where a PDU contains a 15-bit "Length Indicator" indicating that an RLC SDU ends with
// one octet left in the PDU, the last octet of this PDU shall:
// - be padded by the Sender and ignored by the Receiver though there is no "Length Indicator"
// indicating the existence of Padding; and
// - not be filled with the first octet of the next RLC SDU data.
// In the case where 15-bit "Length Indicators" are used for the previous PDU and the last segment
// of an RLC SDU is one octet short of exactly filling the PDU:
// - if a 15-bit "Length Indicator" is used for the following PDU:
// - the "Length Indicator" with value "111 1111 1111 1011" shall be placed as the first "Length Indicator" in the following PDU;
// - the remaining one octet in the previous PDU shall be padded by the Sender and ignored at the Receiver
// though there is no "Length Indicator" indicating the existence of Padding;
// - in case this SDU was the last one to be transmitted:
// - a RLC PDU consisting of an RLC Header with "Length Indicator" "111 1111 1111 1011" followed by a padding
// "Length Indicator" and padding may be transmitted;
pdu_mngt->data_size += sdu_mngt->sdu_remaining_size;
rlc_um_encode_pdu_15 (rlcP, rlc_header, pdu_mngt, li, li_index);
add_up_tail (pdu, &pdus);
pdu = NULL;
nb_pdu_to_transmit -= 1;
sdu_mngt->sdu_remaining_size = 0;
add_up_tail (rlcP->input_sdus[rlcP->current_sdu_index], &segmented_sdus);
rlcP->input_sdus[rlcP->current_sdu_index] = NULL;
rlcP->buffer_occupancy -= sdu_mngt->sdu_size;
rlcP->nb_sdu -= 1;
rlcP->current_sdu_index = (rlcP->current_sdu_index + 1) % rlcP->size_input_sdus_buffer;
rlcP->li_one_byte_short_to_add_in_next_pdu = 1;
rlcP->li_length_15_was_used_for_previous_pdu = 1;
}
}
}
if (nb_pdu_to_transmit > 0) {
if ((rlcP->li_one_byte_short_to_add_in_next_pdu)) {
pdu = rlc_um_build_pdu_with_only_2li (rlcP, RLC_LI_LAST_PDU_ONE_BYTE_SHORT, RLC_LI_PDU_PADDING);
add_up_tail (pdu, &pdus);
rlcP->li_one_byte_short_to_add_in_next_pdu = 0;
} else if (rlcP->li_exactly_filled_to_add_in_next_pdu) {
pdu = rlc_um_build_pdu_with_only_2li (rlcP, RLC_LI_LAST_PDU_EXACTLY_FILLED, RLC_LI_PDU_PADDING);
add_up_tail (pdu, &pdus);
rlcP->li_exactly_filled_to_add_in_next_pdu = 0;
}
if (!(sdu_mngt)) {
rlc_um_fill_pdus (rlcP, &pdus, &segmented_sdus);
}
}
if ((sdu_mngt)) {
if (sdu_mngt->sdu_remaining_size > 0) {
sdu_copy = get_free_copy_mem_block ();
sdu_copy->data = (uint8_t*) sdu_mngt;
add_up_tail (sdu_copy, &segmented_sdus);
}
rlc_um_fill_pdus (rlcP, &pdus, &segmented_sdus);
}
}
//-----------------------------------------------------------------------------
void
rlc_um_segment_7 (struct rlc_um_entity* rlcP)
{
//-----------------------------------------------------------------------------
list_up segmented_sdus; // the copying of sdu data is done after identification of all LIs to put in pdu
list_up pdus;
struct rlc_um_tx_sdu_management* sdu_mngt = NULL;
struct rlc_um_tx_pdu_management* pdu_mngt;
struct rlc_um_tx_data_pdu_struct* rlc_header;
mem_block* pdu;
mem_block* sdu_copy;
int16_t pdu_remaining_size;
uint16_t li[RLC_UM_SEGMENT_NB_MAX_LI_PER_PDU];
uint8_t discard_go_on = 1;
uint8_t li_index = 0;
uint8_t nb_pdu_to_transmit = rlcP->nb_pdu_requested_by_mac;
pdu = NULL;
init_up (&segmented_sdus, NULL); // param string identifying the list is NULL
init_up (&pdus, NULL); // param string identifying the list is NULL
// DISCARD of SDUs : TIMER_BASED_NO_EXPLICIT
// from 3GPP TS 25.322 V4.2.0
// Upon expiry of the timer Timer_Discard in the Sender, the Sender shall:
// - discard the associated SDU;
// - for the first UMD PDU to be transmitted after the discard operation, the Sender shall:
// - increment VT(US) so that the "Sequence Number" field in this UMD PDU is incremented with two
// compared with the previous UMD PDU;
// - fill the first data octet in this UMD PDU with the first octet of an RLC SDU;
// - set the first "Length Indicator" in this UMD PDU to indicate that the previous RLC PDU
// was exactly filled with the last segment of an RLC SDU (to avoid that the Receiver unnecessarily
// discards an extra SDU).
if ((rlcP->sdu_discard_mode & RLC_SDU_DISCARD_TIMER_BASED_NO_EXPLICIT)) {
discard_go_on = 1;
while ((rlcP->input_sdus[rlcP->current_sdu_index]) && discard_go_on) {
if ((*rlcP->frame_tick_milliseconds - ((struct rlc_um_tx_sdu_management*) (rlcP->input_sdus[rlcP->current_sdu_index]->data))->sdu_creation_time) >=
rlcP->timer_discard_init) {
PRINT_RLC_UM_DISCARD_SDU ("[RLC_UM %p] SDU DISCARDED TIMED OUT %ld ms ", rlcP,
(*rlcP->frame_tick_milliseconds - ((struct rlc_um_tx_sdu_management*) (rlcP->input_sdus[rlcP->current_sdu_index]->data))->sdu_creation_time));
PRINT_RLC_UM_DISCARD_SDU ("BO %d, NB SDU %d\n", rlcP->buffer_occupancy, rlcP->nb_sdu);
rlcP->buffer_occupancy -= ((struct rlc_um_tx_sdu_management*) (rlcP->input_sdus[rlcP->current_sdu_index]->data))->sdu_remaining_size;
rlcP->nb_sdu -= 1;
free_mem_block (rlcP->input_sdus[rlcP->current_sdu_index]);
rlcP->input_sdus[rlcP->current_sdu_index] = NULL;
#ifdef DEBUG_RLC_UM_VT_US
msg ("[RLC_UM %p] Inc VT(US) in discarding SDU in rlc_um_segment_7()\n", rlcP);
#endif
rlcP->vt_us = (rlcP->vt_us + 1) & 0x7F;
rlcP->li_one_byte_short_to_add_in_next_pdu = 0;
rlcP->li_exactly_filled_to_add_in_next_pdu = 1;
rlcP->current_sdu_index = (rlcP->current_sdu_index + 1) % rlcP->size_input_sdus_buffer;
} else {
discard_go_on = 0;
}
}
}
while ((rlcP->input_sdus[rlcP->current_sdu_index]) && (nb_pdu_to_transmit > 0)) {
sdu_mngt = ((struct rlc_um_tx_sdu_management*) (rlcP->input_sdus[rlcP->current_sdu_index]->data));
PRINT_RLC_UM_SEGMENT ("[RLC_UM %p] SEGMENT GET NEW SDU %p AVAILABLE SIZE %d Bytes\n", rlcP, sdu_mngt, sdu_mngt->sdu_remaining_size);
// pdu management
if (!pdu) {
if (!(pdu = get_free_mem_block (rlcP->data_pdu_size + sizeof (struct rlc_um_tx_data_pdu_management) + GUARD_CRC_LIH_SIZE))) {
msg ("[RLC_UM %p][SEGMENT 7] ERROR COULD NOT GET NEW PDU, EXIT\n");
return;
}
li_index = 0;
pdu_remaining_size = rlcP->data_pdu_size - 1; // 1= size of header, minimum
pdu_mngt = (struct rlc_um_tx_pdu_management*) (pdu->data);
memset (pdu->data, 0, sizeof (struct rlc_um_tx_pdu_management));
pdu_mngt->first_byte = &pdu->data[sizeof (struct rlc_um_tx_data_pdu_management)];
rlc_header = (struct rlc_um_tx_data_pdu_struct*) (pdu_mngt->first_byte);
PRINT_RLC_UM_SEGMENT ("[RLC_UM %p][SEGMENT 7] CONSTRUCT NEW PDU\n", rlcP);
// management of previous pdu
// In the case where 15-bit "Length Indicators" are used for the previous PDU and the last segment
// of an RLC SDU is one octet short of exactly filling the PDU:
// - if a 15-bit "Length Indicator" is used for the following PDU:
// - the "Length Indicator" with value "111 1111 1111 1011" shall be placed as the first "Length Indicator" in the following PDU;
// - the remaining one octet in the previous PDU shall be padded by the Sender and ignored at the Receiver
// though there is no "Length Indicator" indicating the existence of Padding;
// - in case this SDU was the last one to be transmitted:
// - a RLC PDU consisting of an RLC Header with "Length Indicator" "111 1111 1111 1011" followed by a padding
// "Length Indicator" and padding may be transmitted;
// - if a 7-bit "Length Indicator" is used for the following PDU:
// - if RLC is configured for UM mode:
// - the "Length Indicator" with value "000 0000" shall be placed as the first "Length indicator"
// in the following PDU and its SN shall be incremented by 2 before it is transmitted.
if (rlcP->li_exactly_filled_to_add_in_next_pdu) {
li[li_index++] = RLC_LI_LAST_PDU_EXACTLY_FILLED;
rlcP->li_exactly_filled_to_add_in_next_pdu = 0;
pdu_remaining_size -= 1;
if (sdu_mngt->use_special_li) {
li[li_index++] = RLC_LI_1ST_BYTE_SDU_IS_1ST_BYTE_PDU;
pdu_remaining_size -= 1;
sdu_mngt->use_special_li = 0; // this field is not active when the sdu does not start at the begining of a pdu
}
} else if (rlcP->li_one_byte_short_to_add_in_next_pdu) {
li[li_index++] = RLC_LI_LAST_PDU_ONE_BYTE_SHORT;
rlcP->li_one_byte_short_to_add_in_next_pdu = 0;
pdu_remaining_size -= 1;
if (rlcP->li_length_15_was_used_for_previous_pdu) {
#ifdef DEBUG_RLC_UM_VT_US
msg ("[RLC_UM %p] Inc VT(US) in rlc_um_segment_7()/li_length_15_was_used_for_previous_pdu\n", rlcP);
#endif
rlcP->vt_us = (rlcP->vt_us + 1) & 0x7F;
}
}
}
if (sdu_mngt->use_special_li) {
PRINT_RLC_UM_SEGMENT ("[RLC_UM %p][SEGMENT 7] ADD SPECIAL LI\n", rlcP);
li[li_index++] = RLC_LI_1ST_BYTE_SDU_IS_1ST_BYTE_PDU;
pdu_remaining_size -= 1;
sdu_mngt->use_special_li = 0; // this field is not active when the sdu does not start at the begining of a pdu
}
if ((pdu_remaining_size - sdu_mngt->sdu_remaining_size) < 0) {
pdu_mngt->data_size += pdu_remaining_size;
rlcP->buffer_occupancy -= pdu_remaining_size;
rlc_um_encode_pdu_7 (rlcP, rlc_header, pdu_mngt, li, li_index);
add_up_tail (pdu, &pdus);
rlcP->li_length_15_was_used_for_previous_pdu = 0;
PRINT_RLC_UM_SEGMENT ("[RLC_UM %p][SEGMENT 7] PDU %p CONSTRUCTED WITH PAYLOAD %d Bytes offset_end_sdu %d @0\n", rlcP, pdu, pdu_mngt->data_size,
sdu_mngt->sdu_remaining_size);
pdu = NULL;
nb_pdu_to_transmit -= 1;
sdu_mngt->sdu_remaining_size = sdu_mngt->sdu_remaining_size - pdu_remaining_size;
sdu_mngt->use_special_li = 0; // this field is not active when the sdu does not start at the begining of a pdu
} else {
if ((pdu_remaining_size - sdu_mngt->sdu_remaining_size) >= 1) {
pdu_remaining_size = pdu_remaining_size - sdu_mngt->sdu_remaining_size - 1; // size of li length
pdu_mngt->data_size += sdu_mngt->sdu_remaining_size;
li[li_index++] = sdu_mngt->sdu_remaining_size << 1;
rlcP->buffer_occupancy -= sdu_mngt->sdu_remaining_size;
sdu_mngt->sdu_remaining_size = 0;
add_up_tail (rlcP->input_sdus[rlcP->current_sdu_index], &segmented_sdus);
rlcP->input_sdus[rlcP->current_sdu_index] = NULL;
rlcP->nb_sdu -= 1;
rlcP->current_sdu_index = (rlcP->current_sdu_index + 1) % rlcP->size_input_sdus_buffer;
if (rlcP->nb_sdu == 0) {
if (pdu_remaining_size >= 1) {
li[li_index++] = RLC_LI_PDU_PADDING;
rlc_um_encode_pdu_7 (rlcP, rlc_header, pdu_mngt, li, li_index);
add_up_tail (pdu, &pdus);
PRINT_RLC_UM_SEGMENT ("[RLC_UM %p][SEGMENT 7] PDU %p CONSTRUCTED WITH PAYLOAD %d Bytes offset_end_sdu %d @1\n", rlcP, pdu, pdu_mngt->data_size,
sdu_mngt->sdu_remaining_size);
rlcP->li_length_15_was_used_for_previous_pdu = 0;
pdu = NULL;
nb_pdu_to_transmit -= 1;
} else {
if (pdu_remaining_size == 0) {
rlc_um_encode_pdu_7 (rlcP, rlc_header, pdu_mngt, li, li_index);
add_up_tail (pdu, &pdus);
PRINT_RLC_UM_SEGMENT ("[RLC_UM %p][SEGMENT 7]PDU %p CONSTRUCTED WITH PAYLOAD %d Bytes offset_end_sdu %d @2\n", rlcP, pdu, pdu_mngt->data_size,
sdu_mngt->sdu_remaining_size);
pdu = NULL;
nb_pdu_to_transmit -= 1;
rlcP->li_exactly_filled_to_add_in_next_pdu = 1;
rlcP->li_length_15_was_used_for_previous_pdu = 0;
}
}
}
/*
} else { // else:if (!last_sdu)
} // the while loop continue with the same pdu */
} else if ((pdu_remaining_size - sdu_mngt->sdu_remaining_size) == 0) {
// from 3GPP TS 25.322 V4.2.0
//In the case where the end of the last segment of an RLC SDU exactly ends at the end of a PDU and there is
// no "Length Indicator" that indicates the end of the RLC SDU:
// - if 7-bit "Length Indicator" is used:
// - a "Length Indicator" with value "000 0000" shall be placed as the first "Length Indicator" in the following PDU;
// - if 15-bit "Length Indicator" is used:
// - a "Length Indicator" with value "000 0000 0000 0000" shall be placed as the first "Length Indicator" in the following PDU.
pdu_mngt->data_size += pdu_remaining_size;
rlc_um_encode_pdu_7 (rlcP, rlc_header, pdu_mngt, li, li_index);
add_up_tail (pdu, &pdus);
PRINT_RLC_UM_SEGMENT ("[RLC_UM %p][SEGMENT 7] PDU %p CONSTRUCTED WITH PAYLOAD %d Bytes offset_end_sdu %d @3\n", rlcP, pdu, pdu_mngt->data_size,
sdu_mngt->sdu_remaining_size);
pdu = NULL;
nb_pdu_to_transmit -= 1;
rlcP->buffer_occupancy -= sdu_mngt->sdu_remaining_size;
sdu_mngt->sdu_remaining_size = 0;
add_up_tail (rlcP->input_sdus[rlcP->current_sdu_index], &segmented_sdus);
rlcP->input_sdus[rlcP->current_sdu_index] = NULL;
rlcP->nb_sdu -= 1;
rlcP->current_sdu_index = (rlcP->current_sdu_index + 1) % rlcP->size_input_sdus_buffer;
rlcP->li_exactly_filled_to_add_in_next_pdu = 1;
rlcP->li_length_15_was_used_for_previous_pdu = 0;
}
}
}
if (nb_pdu_to_transmit > 0) {
if ((rlcP->li_one_byte_short_to_add_in_next_pdu)) {
pdu = rlc_um_build_pdu_with_only_2li (rlcP, RLC_LI_LAST_PDU_ONE_BYTE_SHORT, RLC_LI_PDU_PADDING);
add_up_tail (pdu, &pdus);
rlcP->li_one_byte_short_to_add_in_next_pdu = 0;
} else if (rlcP->li_exactly_filled_to_add_in_next_pdu) {
pdu = rlc_um_build_pdu_with_only_2li (rlcP, RLC_LI_LAST_PDU_EXACTLY_FILLED, RLC_LI_PDU_PADDING);
add_up_tail (pdu, &pdus);
rlcP->li_exactly_filled_to_add_in_next_pdu = 0;
}
if (!(sdu_mngt)) {
rlc_um_fill_pdus (rlcP, &pdus, &segmented_sdus);
}
}
if ((sdu_mngt)) {
if (sdu_mngt->sdu_remaining_size > 0) {
sdu_copy = get_free_copy_mem_block ();
sdu_copy->data = (uint8_t*) sdu_mngt;
add_up_tail (sdu_copy, &segmented_sdus);
}
rlc_um_fill_pdus (rlcP, &pdus, &segmented_sdus);
}
}
openair2/LAYER2/RLC/UM/rlc_um_segment_proto_extern.h
-45
View File
@@ -1,45 +0,0 @@
/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenAirInterface is distributed in the hope that 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 OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see <http://www.gnu.org/licenses/>.
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@eurecom.fr
Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
*******************************************************************************/
/******************************************************************************
AUTHOR : Lionel GAUTHIER
COMPANY : EURECOM
EMAIL : Lionel.Gauthier@eurecom.fr
*******************************************************************************/
# ifndef __RLC_UM_SEGMENT_PROTO_EXTERN_H__
# define __RLC_UM_SEGMENT_PROTO_EXTERN_H__
//-----------------------------------------------------------------------------
# include "rlc_um_entity.h"
# include "rlc_um_structs.h"
# include "rlc_um_constants.h"
# include "lists_structs.h"
//-----------------------------------------------------------------------------
extern void rlc_um_segment_15 (struct rlc_um_entity *rlcP);
extern void rlc_um_segment_7 (struct rlc_um_entity *rlcP);
# endif
openair2/LAYER2/RLC/UM/rlc_um_structs.h
-98
View File
@@ -1,98 +0,0 @@
/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenAirInterface is distributed in the hope that 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 OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see <http://www.gnu.org/licenses/>.
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@eurecom.fr
Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
*******************************************************************************/
/******************************************************************************
AUTHOR : Lionel GAUTHIER
COMPANY : EURECOM
EMAIL : Lionel.Gauthier@eurecom.fr
*******************************************************************************/
# ifndef __RLC_UM_STRUCTS_H__
# define __RLC_UM_STRUCTS_H__
# include "platform.h"
# include "L1H_structs.h"
# include "lists_structs.h"
# include "rlc_am_constants.h"
# include "mac_primitives.h"
# include "rlc_primitives.h"
//-----------------------
struct rlc_um_tx_sdu_management {
uint8_t *first_byte;
int32_t sdu_creation_time;
uint16_t sdu_remaining_size;
uint16_t sdu_segmented_size;
uint16_t sdu_size;
uint8_t use_special_li;
};
//-----------------------
struct rlc_um_tx_pdu_management {
uint8_t *first_byte;
uint8_t *payload;
uint16_t data_size; // size of payload (not included byte1, LIs, and padding)
uint8_t dummy[MAC_HEADER_MAX_SIZE];
};
//-----------------------
struct rlc_um_rx_pdu_management {
uint8_t *first_byte;
uint8_t sn;
};
//-----------------------
struct rlc_um_tx_data_pdu_management {
union {
struct rlc_um_tx_pdu_management tx_pdu_mngmnt;
struct mac_tb_req tb_req;
struct mac_tx_tb_management tb_mngt;
L1H_TrChBlkData_MAC_Interface l1h_TrChBlkData_MAC_Interface;
# ifdef BYPASS_L1
struct rlc_um_rx_pdu_management dummy1;
struct mac_tb_ind dummy2;
struct mac_rx_tb_management dummy3;
struct rlc_output_primitive dummy4;
# endif
} dummy;
};
//-----------------------
struct rlc_um_rx_data_pdu_struct {
uint8_t byte1;
uint8_t li_data_7[1];
};
//-----------------------
struct rlc_um_tx_data_pdu_struct {
uint8_t byte1;
uint8_t li_data_7[1];
};
//-----------------------
struct rlc_um_data_req_alloc { // alloc enought bytes for sdu mngt also
union {
struct rlc_um_data_req dummy1;
struct rlc_um_tx_sdu_management dummy2;
} dummy;
};
# endif