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f097cca7a50d8be2c5373e4c029f371a07aa417f
openairinterface5g/openair2/LAYER2/RLC/rlc_mac.c
T
Bi-Ruei, Chiu f097cca7a5 Compare RRC_VERSION with MAKE_VERSION(x,y,z) macro to provide better SW configuration 
To minimize migration effort, we follow the logic of legacy macro Rel10 and Rel14 used
for conditional compilation of current code.

In the future, they might be changed to accommodate finer software configuration, e.g.
MAKE_VERSION(12,2,0) or MAKE_VERSION(13,1,0) .... etc.
2018-05-29 18:00:58 +08:00

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18 KiB
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/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (the "License"); you may not use this file
* except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.openairinterface.org/?page_id=698
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
/*
rlc_mac.c
-------------------
AUTHOR : Lionel GAUTHIER
COMPANY : EURECOM
EMAIL : Lionel.Gauthier@eurecom.fr
*/
//-----------------------------------------------------------------------------
#define RLC_MAC_C
#include "rlc.h"
#include "LAYER2/MAC/mac_extern.h"
#include "UTIL/LOG/log.h"
#include "UTIL/OCG/OCG_vars.h"
#include "hashtable.h"
#include "assertions.h"
#include "UTIL/LOG/vcd_signal_dumper.h"
//#define DEBUG_MAC_INTERFACE 1
//-----------------------------------------------------------------------------
struct mac_data_ind mac_rlc_deserialize_tb (
char *buffer_pP,
const tb_size_t tb_sizeP,
num_tb_t num_tbP,
crc_t *crcs_pP)
{
//-----------------------------------------------------------------------------
struct mac_data_ind data_ind;
mem_block_t* tb_p;
num_tb_t nb_tb_read;
tbs_size_t tbs_size;
nb_tb_read = 0;
tbs_size = 0;
list_init(&data_ind.data, NULL);
while (num_tbP > 0) {
tb_p = get_free_mem_block(sizeof (mac_rlc_max_rx_header_size_t) + tb_sizeP, __func__);
if (tb_p != NULL) {
((struct mac_tb_ind *) (tb_p->data))->first_bit = 0;
((struct mac_tb_ind *) (tb_p->data))->data_ptr = (uint8_t*)&tb_p->data[sizeof (mac_rlc_max_rx_header_size_t)];
((struct mac_tb_ind *) (tb_p->data))->size = tb_sizeP;
if (crcs_pP) {
((struct mac_tb_ind *) (tb_p->data))->error_indication = crcs_pP[nb_tb_read];
} else {
((struct mac_tb_ind *) (tb_p->data))->error_indication = 0;
}
memcpy(((struct mac_tb_ind *) (tb_p->data))->data_ptr, &buffer_pP[tbs_size], tb_sizeP);
#ifdef DEBUG_MAC_INTERFACE
LOG_T(RLC, "[MAC-RLC] DUMP RX PDU(%d bytes):\n", tb_sizeP);
rlc_util_print_hex_octets(RLC, ((struct mac_tb_ind *) (tb_p->data))->data_ptr, tb_sizeP);
#endif
nb_tb_read = nb_tb_read + 1;
tbs_size = tbs_size + tb_sizeP;
list_add_tail_eurecom(tb_p, &data_ind.data);
}
num_tbP = num_tbP - 1;
}
data_ind.no_tb = nb_tb_read;
data_ind.tb_size = tb_sizeP << 3;
return data_ind;
}
//-----------------------------------------------------------------------------
tbs_size_t mac_rlc_serialize_tb (char* buffer_pP, list_t transport_blocksP)
{
//-----------------------------------------------------------------------------
mem_block_t *tb_p;
tbs_size_t tbs_size;
tbs_size_t tb_size;
tbs_size = 0;
while (transport_blocksP.nb_elements > 0) {
tb_p = list_remove_head (&transport_blocksP);
if (tb_p != NULL) {
tb_size = ((struct mac_tb_req *) (tb_p->data))->tb_size;
#ifdef DEBUG_MAC_INTERFACE
LOG_T(RLC, "[MAC-RLC] DUMP TX PDU(%d bytes):\n", tb_size);
rlc_util_print_hex_octets(RLC, ((struct mac_tb_req *) (tb_p->data))->data_ptr, tb_size);
#endif
memcpy(&buffer_pP[tbs_size], &((struct mac_tb_req *) (tb_p->data))->data_ptr[0], tb_size);
tbs_size = tbs_size + tb_size;
free_mem_block(tb_p, __func__);
}
}
return tbs_size;
}
//-----------------------------------------------------------------------------
tbs_size_t mac_rlc_data_req(
const module_id_t module_idP,
const rnti_t rntiP,
const eNB_index_t eNB_index,
const frame_t frameP,
const eNB_flag_t enb_flagP,
const MBMS_flag_t MBMS_flagP,
const logical_chan_id_t channel_idP,
const tb_size_t tb_sizeP,
char *buffer_pP
#if (RRC_VERSION >= MAKE_VERSION(14, 0, 0))
,const uint32_t sourceL2Id
,const uint32_t destinationL2Id
#endif
)
{
//-----------------------------------------------------------------------------
struct mac_data_req data_request;
rlc_mode_t rlc_mode = RLC_MODE_NONE;
rlc_mbms_id_t *mbms_id_p = NULL;
rlc_union_t *rlc_union_p = NULL;
hash_key_t key = HASHTABLE_NOT_A_KEY_VALUE;
hashtable_rc_t h_rc;
srb_flag_t srb_flag = (channel_idP <= 2) ? SRB_FLAG_YES : SRB_FLAG_NO;
tbs_size_t ret_tb_size = 0;
protocol_ctxt_t ctxt;
PROTOCOL_CTXT_SET_BY_MODULE_ID(&ctxt, module_idP, enb_flagP, rntiP, frameP, 0,eNB_index);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_MAC_RLC_DATA_REQ,VCD_FUNCTION_IN);
#ifdef DEBUG_MAC_INTERFACE
LOG_D(RLC, PROTOCOL_CTXT_FMT" MAC_RLC_DATA_REQ channel %d (%d) MAX RB %d\n",
PROTOCOL_CTXT_ARGS((&ctxt)),
channel_idP,
RLC_MAX_LC,
NB_RB_MAX);
#endif // DEBUG_MAC_INTERFACE
if (MBMS_flagP) {
AssertFatal (channel_idP < RLC_MAX_MBMS_LC, "channel id is too high (%u/%d)!\n", channel_idP, RLC_MAX_MBMS_LC);
} else {
AssertFatal (channel_idP < NB_RB_MAX, "channel id is too high (%u/%d)!\n", channel_idP, NB_RB_MAX);
}
if (MBMS_flagP) {
if (enb_flagP) {
mbms_id_p = &rlc_mbms_lcid2service_session_id_eNB[module_idP][channel_idP];
key = RLC_COLL_KEY_MBMS_VALUE(module_idP, rntiP, enb_flagP, mbms_id_p->service_id, mbms_id_p->session_id);
} else {
return (tbs_size_t)0;
}
} else {
key = RLC_COLL_KEY_LCID_VALUE(module_idP, rntiP, enb_flagP, channel_idP, srb_flag);
#if (RRC_VERSION >= MAKE_VERSION(14, 0, 0))
if ((sourceL2Id > 0) && (destinationL2Id > 0))
key = RLC_COLL_KEY_LCID_SOURCE_DEST_VALUE(module_idP, rntiP, enb_flagP, channel_idP, sourceL2Id, destinationL2Id, srb_flag);
#endif
}
h_rc = hashtable_get(rlc_coll_p, key, (void**)&rlc_union_p);
if (h_rc == HASH_TABLE_OK) {
rlc_mode = rlc_union_p->mode;
} else {
rlc_mode = RLC_MODE_NONE;
AssertFatal (0 , "RLC not configured lcid %u RNTI %x!\n", channel_idP, rntiP);
}
switch (rlc_mode) {
case RLC_MODE_NONE:
ret_tb_size =0;
break;
case RLC_MODE_AM:
if (!enb_flagP) rlc_am_set_nb_bytes_requested_by_mac(&rlc_union_p->rlc.am,tb_sizeP);
data_request = rlc_am_mac_data_request(&ctxt, &rlc_union_p->rlc.am,enb_flagP);
ret_tb_size =mac_rlc_serialize_tb(buffer_pP, data_request.data);
break;
case RLC_MODE_UM:
if (!enb_flagP) rlc_um_set_nb_bytes_requested_by_mac(&rlc_union_p->rlc.um,tb_sizeP);
data_request = rlc_um_mac_data_request(&ctxt, &rlc_union_p->rlc.um,enb_flagP);
ret_tb_size = mac_rlc_serialize_tb(buffer_pP, data_request.data);
break;
case RLC_MODE_TM:
data_request = rlc_tm_mac_data_request(&ctxt, &rlc_union_p->rlc.tm);
ret_tb_size = mac_rlc_serialize_tb(buffer_pP, data_request.data);
break;
default:
;
}
#if T_TRACER
if (enb_flagP)
T(T_ENB_RLC_MAC_DL, T_INT(module_idP), T_INT(rntiP), T_INT(channel_idP), T_INT(ret_tb_size));
#endif
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_MAC_RLC_DATA_REQ,VCD_FUNCTION_OUT);
return ret_tb_size;
}
//-----------------------------------------------------------------------------
void mac_rlc_data_ind (
const module_id_t module_idP,
const rnti_t rntiP,
const module_id_t eNB_index,
const frame_t frameP,
const eNB_flag_t enb_flagP,
const MBMS_flag_t MBMS_flagP,
const logical_chan_id_t channel_idP,
char *buffer_pP,
const tb_size_t tb_sizeP,
num_tb_t num_tbP,
crc_t *crcs_pP)
{
//-----------------------------------------------------------------------------
rlc_mode_t rlc_mode = RLC_MODE_NONE;
rlc_mbms_id_t *mbms_id_p = NULL;
rlc_union_t *rlc_union_p = NULL;
hash_key_t key = HASHTABLE_NOT_A_KEY_VALUE;
hashtable_rc_t h_rc;
srb_flag_t srb_flag = (channel_idP <= 2) ? SRB_FLAG_YES : SRB_FLAG_NO;
protocol_ctxt_t ctxt;
PROTOCOL_CTXT_SET_BY_MODULE_ID(&ctxt, module_idP, enb_flagP, rntiP, frameP, 0, eNB_index);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_MAC_RLC_DATA_IND,VCD_FUNCTION_IN);
#ifdef DEBUG_MAC_INTERFACE
if (num_tbP) {
LOG_D(RLC, PROTOCOL_CTXT_FMT" MAC_RLC_DATA_IND on channel %d (%d), rb max %d, Num_tb %d\n",
PROTOCOL_CTXT_ARGS(&ctxt),
channel_idP,
RLC_MAX_LC,
NB_RB_MAX,
num_tbP);
}
#endif // DEBUG_MAC_INTERFACE
#if T_TRACER
if (enb_flagP)
T(T_ENB_RLC_MAC_UL, T_INT(module_idP), T_INT(rntiP), T_INT(channel_idP), T_INT(tb_sizeP));
#endif
if (MBMS_flagP) {
if (BOOL_NOT(enb_flagP)) {
mbms_id_p = &rlc_mbms_lcid2service_session_id_ue[module_idP][channel_idP];
key = RLC_COLL_KEY_MBMS_VALUE(module_idP, rntiP, enb_flagP, mbms_id_p->service_id, mbms_id_p->session_id);
} else {
return;
}
} else {
key = RLC_COLL_KEY_LCID_VALUE(module_idP, rntiP, enb_flagP, channel_idP, srb_flag);
}
h_rc = hashtable_get(rlc_coll_p, key, (void**)&rlc_union_p);
if (h_rc == HASH_TABLE_OK) {
rlc_mode = rlc_union_p->mode;
} else {
rlc_mode = RLC_MODE_NONE;
//AssertFatal (0 , "%s RLC not configured rb id %u lcid %u module %u!\n", __FUNCTION__, rb_id, channel_idP, ue_module_idP);
}
struct mac_data_ind data_ind = mac_rlc_deserialize_tb(buffer_pP, tb_sizeP, num_tbP, crcs_pP);
switch (rlc_mode) {
case RLC_MODE_NONE:
//handle_event(WARNING,"FILE %s FONCTION mac_rlc_data_ind() LINE %s : no radio bearer configured :%d\n", __FILE__, __LINE__, channel_idP);
break;
case RLC_MODE_AM:
rlc_am_mac_data_indication(&ctxt, &rlc_union_p->rlc.am, data_ind);
break;
case RLC_MODE_UM:
rlc_um_mac_data_indication(&ctxt, &rlc_union_p->rlc.um, data_ind);
break;
case RLC_MODE_TM:
rlc_tm_mac_data_indication(&ctxt, &rlc_union_p->rlc.tm, data_ind);
break;
}
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_MAC_RLC_DATA_IND,VCD_FUNCTION_OUT);
}
//-----------------------------------------------------------------------------
mac_rlc_status_resp_t mac_rlc_status_ind(
const module_id_t module_idP,
const rnti_t rntiP,
const eNB_index_t eNB_index,
const frame_t frameP,
const sub_frame_t subframeP,
const eNB_flag_t enb_flagP,
const MBMS_flag_t MBMS_flagP,
const logical_chan_id_t channel_idP,
const tb_size_t tb_sizeP
#if (RRC_VERSION >= MAKE_VERSION(14, 0, 0))
,const uint32_t sourceL2Id
,const uint32_t destinationL2Id
#endif
)
{
//-----------------------------------------------------------------------------
mac_rlc_status_resp_t mac_rlc_status_resp;
struct mac_status_ind tx_status;
struct mac_status_resp status_resp;
rlc_mode_t rlc_mode = RLC_MODE_NONE;
rlc_mbms_id_t *mbms_id_p = NULL;
rlc_union_t *rlc_union_p = NULL;
hash_key_t key = HASHTABLE_NOT_A_KEY_VALUE;
hashtable_rc_t h_rc;
srb_flag_t srb_flag = (channel_idP <= 2) ? SRB_FLAG_YES : SRB_FLAG_NO;
protocol_ctxt_t ctxt;
PROTOCOL_CTXT_SET_BY_MODULE_ID(&ctxt, module_idP, enb_flagP, rntiP, frameP, subframeP, eNB_index);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_MAC_RLC_STATUS_IND,VCD_FUNCTION_IN);
memset (&mac_rlc_status_resp, 0, sizeof(mac_rlc_status_resp_t));
memset (&tx_status , 0, sizeof(struct mac_status_ind));
if (MBMS_flagP) {
if (enb_flagP) {
mbms_id_p = &rlc_mbms_lcid2service_session_id_eNB[module_idP][channel_idP];
} else {
mbms_id_p = &rlc_mbms_lcid2service_session_id_ue[module_idP][channel_idP];
}
key = RLC_COLL_KEY_MBMS_VALUE(module_idP, rntiP, enb_flagP, mbms_id_p->service_id, mbms_id_p->session_id);
} else {
#if (RRC_VERSION >= MAKE_VERSION(14, 0, 0))
if ((sourceL2Id > 0) && (destinationL2Id > 0)) {
key = RLC_COLL_KEY_SOURCE_DEST_VALUE(module_idP, rntiP, enb_flagP, channel_idP, sourceL2Id, destinationL2Id, srb_flag);
} else
#endif
{
//LOG_I(RLC, "Panos-D mac_rlc_status_ind 1 enb_flagP: %d, channel_idP: %d, srb_flag: %d \n", enb_flagP, channel_idP, srb_flag);
key = RLC_COLL_KEY_LCID_VALUE(module_idP, rntiP, enb_flagP, channel_idP, srb_flag);
}
}
//LOG_I(RLC, "Panos-D mac_rlc_status_ind 2 enb_flagP: %d, channel_idP: %d, srb_flag: %d \n", enb_flagP, channel_idP, srb_flag);
h_rc = hashtable_get(rlc_coll_p, key, (void**)&rlc_union_p);
if (h_rc == HASH_TABLE_OK) {
rlc_mode = rlc_union_p->mode;
} else {
rlc_mode = RLC_MODE_NONE;
//LOG_D(RLC , "Panos-D: mac_rlc_status_ind() In RLC_MODE_NONE \n");
//LOG_W(RLC , "[%s] RLC not configured lcid %u module %u!\n", __FUNCTION__, channel_idP, module_idP);
//LOG_D(RLC , "[%s] RLC not configured rb id %u lcid %u module %u!\n", __FUNCTION__, rb_id, channel_idP, ue_module_idP);
}
switch (rlc_mode) {
case RLC_MODE_NONE:
//handle_event(WARNING,"FILE %s FONCTION mac_rlc_data_ind() LINE %s : no radio bearer configured :%d\n", __FILE__, __LINE__, channel_idP);
mac_rlc_status_resp.bytes_in_buffer = 0;
break;
case RLC_MODE_AM:
status_resp = rlc_am_mac_status_indication(&ctxt, &rlc_union_p->rlc.am, tb_sizeP, tx_status,enb_flagP);
mac_rlc_status_resp.bytes_in_buffer = status_resp.buffer_occupancy_in_bytes;
mac_rlc_status_resp.head_sdu_creation_time = status_resp.head_sdu_creation_time;
mac_rlc_status_resp.head_sdu_remaining_size_to_send = status_resp.head_sdu_remaining_size_to_send;
mac_rlc_status_resp.head_sdu_is_segmented = status_resp.head_sdu_is_segmented;
//return mac_rlc_status_resp;
break;
case RLC_MODE_UM:
status_resp = rlc_um_mac_status_indication(&ctxt, &rlc_union_p->rlc.um, tb_sizeP, tx_status, enb_flagP);
mac_rlc_status_resp.bytes_in_buffer = status_resp.buffer_occupancy_in_bytes;
mac_rlc_status_resp.pdus_in_buffer = status_resp.buffer_occupancy_in_pdus;
mac_rlc_status_resp.head_sdu_creation_time = status_resp.head_sdu_creation_time;
mac_rlc_status_resp.head_sdu_remaining_size_to_send = status_resp.head_sdu_remaining_size_to_send;
mac_rlc_status_resp.head_sdu_is_segmented = status_resp.head_sdu_is_segmented;
// return mac_rlc_status_resp;
break;
case RLC_MODE_TM:
status_resp = rlc_tm_mac_status_indication(&ctxt, &rlc_union_p->rlc.tm, tb_sizeP, tx_status);
mac_rlc_status_resp.bytes_in_buffer = status_resp.buffer_occupancy_in_bytes;
mac_rlc_status_resp.pdus_in_buffer = status_resp.buffer_occupancy_in_pdus;
// return mac_rlc_status_resp;
break;
default:
mac_rlc_status_resp.bytes_in_buffer = 0 ;
}
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_MAC_RLC_STATUS_IND,VCD_FUNCTION_OUT);
return mac_rlc_status_resp;
}
//-----------------------------------------------------------------------------
rlc_buffer_occupancy_t mac_rlc_get_buffer_occupancy_ind(
const module_id_t module_idP,
const rnti_t rntiP,
const eNB_index_t eNB_index,
const frame_t frameP,
const sub_frame_t subframeP,
const eNB_flag_t enb_flagP,
const logical_chan_id_t channel_idP)
{
//-----------------------------------------------------------------------------
rlc_buffer_occupancy_t mac_rlc_buffer_occupancy_resp = 0;
rlc_mode_t rlc_mode = RLC_MODE_NONE;
rlc_union_t *rlc_union_p = NULL;
hash_key_t key = HASHTABLE_NOT_A_KEY_VALUE;
hashtable_rc_t h_rc;
srb_flag_t srb_flag = (channel_idP <= 2) ? SRB_FLAG_YES : SRB_FLAG_NO;
protocol_ctxt_t ctxt;
PROTOCOL_CTXT_SET_BY_MODULE_ID(&ctxt, module_idP, enb_flagP, rntiP, frameP, 0, eNB_index);
//VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_MAC_RLC_GET_BUFFER_OCCUPANCY_IND,VCD_FUNCTION_IN);
/* Assumptions : for UE only */
/* At each TTI, Buffer Occupancy is first computed in mac_rlc_status_ind called by MAC ue_scheduler() function */
/* Then this function is called during MAC multiplexing ue_get_sdu(), and it may be call several times for the same bearer if it is in AM mode and there are several PDU types to transmit */
AssertFatal(enb_flagP == FALSE,"RLC Tx mac_rlc_get_buffer_occupancy_ind function is not implemented for eNB LcId=%d\n", channel_idP);
key = RLC_COLL_KEY_LCID_VALUE(module_idP, rntiP, enb_flagP, channel_idP, srb_flag);
h_rc = hashtable_get(rlc_coll_p, key, (void**)&rlc_union_p);
if (h_rc == HASH_TABLE_OK) {
rlc_mode = rlc_union_p->mode;
} else {
rlc_mode = RLC_MODE_NONE;
//LOG_W(RLC , "[%s] RLC not configured rb id %u lcid %u module %u!\n", __FUNCTION__, rb_id, channel_idP, ue_module_idP);
//LOG_D(RLC , "[%s] RLC not configured rb id %u lcid %u module %u!\n", __FUNCTION__, rb_id, channel_idP, ue_module_idP);
}
switch (rlc_mode) {
case RLC_MODE_AM:
mac_rlc_buffer_occupancy_resp = rlc_am_get_buffer_occupancy_in_bytes(&ctxt, &rlc_union_p->rlc.am);
break;
case RLC_MODE_UM:
mac_rlc_buffer_occupancy_resp = rlc_um_get_buffer_occupancy(&rlc_union_p->rlc.um);
break;
default:
mac_rlc_buffer_occupancy_resp = 0 ;
}
//VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_MAC_RLC_GET_BUFFER_OCCUPANCY_IND,VCD_FUNCTION_OUT);
return mac_rlc_buffer_occupancy_resp;
}
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