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83c3acd0aec03e6cb419275d2c9e7095907282ab
openairinterface5g/openair2/LAYER2/RLC/rlc_mac.c
T
Lionel Gauthier 296e204d5d GPLv3 in source code 
git-svn-id: http://svn.eurecom.fr/openair4G/trunk@5553 818b1a75-f10b-46b9-bf7c-635c3b92a50f
2014-07-17 14:00:58 +00:00

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20 KiB
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/*******************************************************************************
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, Compus SophiaTech 450, route des chappes, 06451 Biot, France.
*******************************************************************************/
/*
rlc_mac.c
-------------------
AUTHOR : Lionel GAUTHIER
COMPANY : EURECOM
EMAIL : Lionel.Gauthier@eurecom.fr
*/
//-----------------------------------------------------------------------------
#define RLC_MAC_C
#include "rlc.h"
#include "LAYER2/MAC/extern.h"
#include "UTIL/LOG/log.h"
#include "UTIL/OCG/OCG_vars.h"
#include "hashtable.h"
#include "assertions.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);
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);
}
}
return tbs_size;
}
//-----------------------------------------------------------------------------
tbs_size_t mac_rlc_data_req(
const module_id_t enb_module_idP,
const module_id_t ue_module_idP,
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) {
//-----------------------------------------------------------------------------
struct mac_data_req data_request;
rb_id_t rb_id = 0;
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_QUESTIONABLE_KEY_VALUE;
hashtable_rc_t h_rc;
srb_flag_t srb_flag = (channel_idP <= 2) ? SRB_FLAG_YES : SRB_FLAG_NO;
#ifdef DEBUG_MAC_INTERFACE
LOG_D(RLC, "\n[RLC] Inst %s enb id %d ue id %d: MAC_RLC_DATA_REQ channel %d (%d) MAX RB %d, Num_tb %d\n",
(enb_flagP) ? "eNB" : "UE", enb_module_idP, ue_module_idP, 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 defined(USER_MODE) && defined(OAI_EMU)
if (enb_flagP) {
AssertFatal ((enb_module_idP >= oai_emulation.info.first_enb_local) && (oai_emulation.info.nb_enb_local > 0),
"eNB module id is too low (%u/%d)!\n",
enb_module_idP,
oai_emulation.info.first_enb_local);
AssertFatal ((enb_module_idP < (oai_emulation.info.first_enb_local + oai_emulation.info.nb_enb_local)) && (oai_emulation.info.nb_enb_local > 0),
"eNB module id is too high (%u/%d)!\n",
enb_module_idP,
oai_emulation.info.first_enb_local + oai_emulation.info.nb_enb_local);
AssertFatal (ue_module_idP < NB_UE_INST,
"UE module id is too high (%u/%d)!\n",
ue_module_idP,
oai_emulation.info.first_ue_local + oai_emulation.info.nb_ue_local);
} else {
AssertFatal (MBMS_flagP == MBMS_FLAG_NO ," MBMS FLAG SHOULD NOT BE SET IN mac_rlc_data_req in UE\n");
AssertFatal (ue_module_idP < (oai_emulation.info.first_ue_local + oai_emulation.info.nb_ue_local),
"UE module id is too high (%u/%d)!\n",
ue_module_idP,
oai_emulation.info.first_ue_local + oai_emulation.info.nb_ue_local);
AssertFatal (ue_module_idP >= oai_emulation.info.first_ue_local,
"UE module id is too low (%u/%d)!\n",
ue_module_idP,
oai_emulation.info.first_ue_local);
}
#endif
if (MBMS_flagP) {
if (enb_flagP) {
mbms_id_p = &rlc_mbms_lcid2service_session_id_eNB[enb_module_idP][channel_idP];
key = RLC_COLL_KEY_MBMS_VALUE(enb_module_idP, ue_module_idP, enb_flagP, mbms_id_p->service_id, mbms_id_p->session_id);
} else {
return (tbs_size_t)0;
}
} else {
if (channel_idP > 2) {
rb_id = channel_idP - 2;
} else {
rb_id = channel_idP;
}
key = RLC_COLL_KEY_VALUE(enb_module_idP, ue_module_idP, enb_flagP, rb_id, 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 , "RLC not configured rb id %u lcid %u module %u!\n", rb_id, channel_idP, ue_module_idP);
}
switch (rlc_mode) {
case RLC_MODE_NONE:
break;
case RLC_MODE_AM:
data_request = rlc_am_mac_data_request(&rlc_union_p->rlc.am, frameP);
return mac_rlc_serialize_tb(buffer_pP, data_request.data);
break;
case RLC_MODE_UM:
data_request = rlc_um_mac_data_request(&rlc_union_p->rlc.um, frameP);
return mac_rlc_serialize_tb(buffer_pP, data_request.data);
break;
case RLC_MODE_TM:
data_request = rlc_tm_mac_data_request(&rlc_union_p->rlc.tm, frameP);
return mac_rlc_serialize_tb(buffer_pP, data_request.data);
break;
default:;
}
return (tbs_size_t)0;
}
//-----------------------------------------------------------------------------
void mac_rlc_data_ind (
const module_id_t enb_module_idP,
const module_id_t ue_module_idP,
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) {
//-----------------------------------------------------------------------------
rb_id_t rb_id = 0;
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_QUESTIONABLE_KEY_VALUE;
hashtable_rc_t h_rc;
srb_flag_t srb_flag = (channel_idP <= 2) ? SRB_FLAG_YES : SRB_FLAG_NO;
#ifdef DEBUG_MAC_INTERFACE
if (num_tbP) {
LOG_D(RLC, "[Frame %5u][%s][RLC][MOD %u/%u] MAC_RLC_DATA_IND on channel %d (%d), rb max %d, Num_tb %d\n",
frameP,
(enb_flagP) ? "eNB" : "UE",
enb_module_idP,
ue_module_idP,
channel_idP,
RLC_MAX_LC,
NB_RB_MAX,
num_tbP);
}
#endif // DEBUG_MAC_INTERFACE
#ifdef OAI_EMU
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 (enb_flagP) {
AssertFatal ((enb_module_idP >= oai_emulation.info.first_enb_local) && (oai_emulation.info.nb_enb_local > 0),
"eNB module id is too low (%u/%d)!\n",
enb_module_idP,
oai_emulation.info.first_enb_local);
AssertFatal ((enb_module_idP < (oai_emulation.info.first_enb_local + oai_emulation.info.nb_enb_local)) && (oai_emulation.info.nb_enb_local > 0),
"eNB module id is too high (%u/%d)!\n",
enb_module_idP,
oai_emulation.info.first_enb_local + oai_emulation.info.nb_enb_local);
AssertFatal (ue_module_idP < NB_UE_INST,
"UE module id is too high (%u/%d)!\n",
ue_module_idP,
oai_emulation.info.first_ue_local + oai_emulation.info.nb_ue_local);
AssertFatal (MBMS_flagP == MBMS_FLAG_NO ," MBMS FLAG SHOULD NOT BE SET IN mac_rlc_data_ind in eNB\n");
} else {
AssertFatal (ue_module_idP < (oai_emulation.info.first_ue_local + oai_emulation.info.nb_ue_local),
"UE module id is too high (%u/%d)!\n",
ue_module_idP,
oai_emulation.info.first_ue_local + oai_emulation.info.nb_ue_local);
AssertFatal (ue_module_idP >= oai_emulation.info.first_ue_local,
"UE module id is too low (%u/%d)!\n",
ue_module_idP,
oai_emulation.info.first_ue_local);
}
#endif
if (MBMS_flagP) {
if (BOOL_NOT(enb_flagP)) {
mbms_id_p = &rlc_mbms_lcid2service_session_id_ue[enb_module_idP][channel_idP];
key = RLC_COLL_KEY_MBMS_VALUE(enb_module_idP, ue_module_idP, enb_flagP, mbms_id_p->service_id, mbms_id_p->session_id);
} else {
return;
}
} else {
if (channel_idP > 2) {
rb_id = channel_idP - 2;
} else {
rb_id = channel_idP;
}
key = RLC_COLL_KEY_VALUE(enb_module_idP, ue_module_idP, enb_flagP, rb_id, 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:
#ifdef DEBUG_MAC_INTERFACE
LOG_D(RLC, "MAC DATA IND TO RLC_AM MOD_ID %s enb id %u ue id %u \n", (enb_flagP) ? "eNB" : "UE", enb_module_idP, ue_module_idP);
#endif
rlc_am_mac_data_indication(&rlc_union_p->rlc.am, frameP, enb_flagP, data_ind);
break;
case RLC_MODE_UM:
#ifdef DEBUG_MAC_INTERFACE
LOG_D(RLC, "MAC DATA IND TO RLC_UM MOD_ID %s enb id %u ue id %u \n", (enb_flagP) ? "eNB" : "UE", enb_module_idP, ue_module_idP);
#endif
rlc_um_mac_data_indication(&rlc_union_p->rlc.um, frameP, enb_flagP, data_ind);
break;
case RLC_MODE_TM:
#ifdef DEBUG_MAC_INTERFACE
LOG_D(RLC, "MAC DATA IND TO RLC_TM MOD_ID %s enb id %u ue id %u \n", (enb_flagP) ? "eNB" : "UE", enb_module_idP, ue_module_idP);
#endif
rlc_tm_mac_data_indication(&rlc_union_p->rlc.tm, frameP, enb_flagP, data_ind);
break;
}
}
//-----------------------------------------------------------------------------
mac_rlc_status_resp_t mac_rlc_status_ind(
const module_id_t enb_module_idP,
const module_id_t ue_module_idP,
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) {
//-----------------------------------------------------------------------------
mac_rlc_status_resp_t mac_rlc_status_resp;
struct mac_status_ind tx_status;
struct mac_status_resp status_resp;
rb_id_t rb_id = 0;
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_QUESTIONABLE_KEY_VALUE;
hashtable_rc_t h_rc;
srb_flag_t srb_flag = (channel_idP <= 2) ? SRB_FLAG_YES : SRB_FLAG_NO;
memset (&mac_rlc_status_resp, 0, sizeof(mac_rlc_status_resp_t));
memset (&tx_status , 0, sizeof(struct mac_status_ind));
#ifdef OAI_EMU
if (MBMS_flagP)
AssertFatal (channel_idP < RLC_MAX_MBMS_LC,
"%s channel id is too high (%u/%d) enb module id %u ue module id %u!\n",
(enb_flagP) ? "eNB" : "UE",
channel_idP,
RLC_MAX_MBMS_LC,
enb_module_idP,
ue_module_idP);
else
AssertFatal (channel_idP < NB_RB_MAX,
"%s channel id is too high (%u/%d) enb module id %u ue module id %u!\n",
(enb_flagP) ? "eNB" : "UE",
channel_idP,
NB_RB_MAX,
enb_module_idP,
ue_module_idP);
if (enb_flagP) {
AssertFatal ((enb_module_idP >= oai_emulation.info.first_enb_local) && (oai_emulation.info.nb_enb_local > 0),
"eNB module id is too low (%u/%d)!\n",
enb_module_idP,
oai_emulation.info.first_enb_local);
AssertFatal ((enb_module_idP < (oai_emulation.info.first_enb_local + oai_emulation.info.nb_enb_local)) && (oai_emulation.info.nb_enb_local > 0),
"eNB module id is too high (%u/%d)!\n",
enb_module_idP,
oai_emulation.info.first_enb_local + oai_emulation.info.nb_enb_local);
AssertFatal (ue_module_idP < NB_UE_INST,
"UE module id is too high (%u/%d)!\n",
ue_module_idP,
oai_emulation.info.first_ue_local + oai_emulation.info.nb_ue_local);
} else {
AssertFatal (ue_module_idP < (oai_emulation.info.first_ue_local + oai_emulation.info.nb_ue_local),
"UE module id is too high (%u/%d)!\n",
ue_module_idP,
oai_emulation.info.first_ue_local + oai_emulation.info.nb_ue_local);
AssertFatal (ue_module_idP >= oai_emulation.info.first_ue_local,
"UE module id is too low (%u/%d)!\n",
ue_module_idP,
oai_emulation.info.first_ue_local);
}
#endif
if (MBMS_flagP) {
if (enb_flagP) {
mbms_id_p = &rlc_mbms_lcid2service_session_id_eNB[enb_module_idP][channel_idP];
} else {
mbms_id_p = &rlc_mbms_lcid2service_session_id_ue[ue_module_idP][channel_idP];
}
key = RLC_COLL_KEY_MBMS_VALUE(enb_module_idP, ue_module_idP, enb_flagP, mbms_id_p->service_id, mbms_id_p->session_id);
} else {
if (channel_idP > 2) {
rb_id = channel_idP - 2;
} else {
rb_id = channel_idP;
}
key = RLC_COLL_KEY_VALUE(enb_module_idP, ue_module_idP, enb_flagP, rb_id, 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_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:
status_resp = rlc_am_mac_status_indication(&rlc_union_p->rlc.am, frameP, tb_sizeP, tx_status);
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(&rlc_union_p->rlc.um, frameP, enb_flagP, 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;
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(&rlc_union_p->rlc.tm, frameP, 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:;
}
return mac_rlc_status_resp;
}
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