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Integrate true reporting of buffer availability of RLC(DU) towards the CU

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This commit is contained in:
Raymond Knopp
2022-04-07 16:34:16 +02:00
parent a77c1d3202
commit 5962824038
14 changed files with 94 additions and 31 deletions
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openair2/F1AP/f1ap_du_task.c
+1 -1
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@@ -175,7 +175,7 @@ void *F1AP_DU_task(void *arg) {
break;
case F1AP_UL_RRC_MESSAGE: // to rrc
LOG_I(F1AP, "DU Task Received F1AP_UL_RRC_MESSAGE\n");
LOG_D(F1AP, "DU Task Received F1AP_UL_RRC_MESSAGE\n");
if (RC.nrrrc && RC.nrrrc[0]->node_type == ngran_gNB_DU) {
DU_send_UL_NR_RRC_MESSAGE_TRANSFER(myInstance,
openair2/F1AP/f1ap_itti_messaging.c
+1 -1
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@@ -32,7 +32,7 @@ void f1ap_itti_send_sctp_data_req(bool isCu, instance_t instance, uint8_t *buffe
sctp_data_req->buffer = buffer;
sctp_data_req->buffer_length = buffer_length;
sctp_data_req->stream = stream;
LOG_I(F1AP, "Sending ITTI message to SCTP Task\n");
LOG_D(F1AP, "Sending ITTI message to SCTP Task\n");
itti_send_msg_to_task(TASK_SCTP, instance, message_p);
}
openair2/LAYER2/nr_rlc/nr_rlc_entity.c
+27 -24
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@@ -77,14 +77,15 @@ nr_rlc_entity_t *new_nr_rlc_entity_am(
ret->sn_modulus = 1 << ret->sn_field_length;
ret->window_size = ret->sn_modulus / 2;
ret->common.recv_pdu = nr_rlc_entity_am_recv_pdu;
ret->common.buffer_status = nr_rlc_entity_am_buffer_status;
ret->common.generate_pdu = nr_rlc_entity_am_generate_pdu;
ret->common.recv_sdu = nr_rlc_entity_am_recv_sdu;
ret->common.set_time = nr_rlc_entity_am_set_time;
ret->common.discard_sdu = nr_rlc_entity_am_discard_sdu;
ret->common.reestablishment = nr_rlc_entity_am_reestablishment;
ret->common.delete = nr_rlc_entity_am_delete;
ret->common.recv_pdu = nr_rlc_entity_am_recv_pdu;
ret->common.buffer_status = nr_rlc_entity_am_buffer_status;
ret->common.generate_pdu = nr_rlc_entity_am_generate_pdu;
ret->common.recv_sdu = nr_rlc_entity_am_recv_sdu;
ret->common.set_time = nr_rlc_entity_am_set_time;
ret->common.discard_sdu = nr_rlc_entity_am_discard_sdu;
ret->common.reestablishment = nr_rlc_entity_am_reestablishment;
ret->common.delete = nr_rlc_entity_am_delete;
ret->common.available_tx_space = nr_rlc_entity_am_available_tx_space;
ret->common.deliver_sdu = deliver_sdu;
ret->common.deliver_sdu_data = deliver_sdu_data;
@@ -127,14 +128,15 @@ nr_rlc_entity_t *new_nr_rlc_entity_um(
ret->sn_modulus = 1 << ret->sn_field_length;
ret->window_size = ret->sn_modulus / 2;
ret->common.recv_pdu = nr_rlc_entity_um_recv_pdu;
ret->common.buffer_status = nr_rlc_entity_um_buffer_status;
ret->common.generate_pdu = nr_rlc_entity_um_generate_pdu;
ret->common.recv_sdu = nr_rlc_entity_um_recv_sdu;
ret->common.set_time = nr_rlc_entity_um_set_time;
ret->common.discard_sdu = nr_rlc_entity_um_discard_sdu;
ret->common.reestablishment = nr_rlc_entity_um_reestablishment;
ret->common.delete = nr_rlc_entity_um_delete;
ret->common.recv_pdu = nr_rlc_entity_um_recv_pdu;
ret->common.buffer_status = nr_rlc_entity_um_buffer_status;
ret->common.generate_pdu = nr_rlc_entity_um_generate_pdu;
ret->common.recv_sdu = nr_rlc_entity_um_recv_sdu;
ret->common.set_time = nr_rlc_entity_um_set_time;
ret->common.discard_sdu = nr_rlc_entity_um_discard_sdu;
ret->common.reestablishment = nr_rlc_entity_um_reestablishment;
ret->common.delete = nr_rlc_entity_um_delete;
ret->common.available_tx_space = nr_rlc_entity_um_available_tx_space;
ret->common.deliver_sdu = deliver_sdu;
ret->common.deliver_sdu_data = deliver_sdu_data;
@@ -158,14 +160,15 @@ nr_rlc_entity_t *new_nr_rlc_entity_tm(
ret->tx_maxsize = tx_maxsize;
ret->common.recv_pdu = nr_rlc_entity_tm_recv_pdu;
ret->common.buffer_status = nr_rlc_entity_tm_buffer_status;
ret->common.generate_pdu = nr_rlc_entity_tm_generate_pdu;
ret->common.recv_sdu = nr_rlc_entity_tm_recv_sdu;
ret->common.set_time = nr_rlc_entity_tm_set_time;
ret->common.discard_sdu = nr_rlc_entity_tm_discard_sdu;
ret->common.reestablishment = nr_rlc_entity_tm_reestablishment;
ret->common.delete = nr_rlc_entity_tm_delete;
ret->common.recv_pdu = nr_rlc_entity_tm_recv_pdu;
ret->common.buffer_status = nr_rlc_entity_tm_buffer_status;
ret->common.generate_pdu = nr_rlc_entity_tm_generate_pdu;
ret->common.recv_sdu = nr_rlc_entity_tm_recv_sdu;
ret->common.set_time = nr_rlc_entity_tm_set_time;
ret->common.discard_sdu = nr_rlc_entity_tm_discard_sdu;
ret->common.reestablishment = nr_rlc_entity_tm_reestablishment;
ret->common.delete = nr_rlc_entity_tm_delete;
ret->common.available_tx_space = nr_rlc_entity_tm_available_tx_space;
ret->common.deliver_sdu = deliver_sdu;
ret->common.deliver_sdu_data = deliver_sdu_data;
openair2/LAYER2/nr_rlc/nr_rlc_entity.h
+2
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@@ -50,6 +50,8 @@ typedef struct nr_rlc_entity_t {
void (*delete)(struct nr_rlc_entity_t *entity);
int (*available_tx_space)(struct nr_rlc_entity_t *entity);
/* callbacks provided to the RLC module */
void (*deliver_sdu)(void *deliver_sdu_data, struct nr_rlc_entity_t *entity,
char *buf, int size);
openair2/LAYER2/nr_rlc/nr_rlc_entity_am.c
+6
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@@ -1887,3 +1887,9 @@ void nr_rlc_entity_am_delete(nr_rlc_entity_t *_entity)
clear_entity(entity);
free(entity);
}
int nr_rlc_entity_am_available_tx_space(nr_rlc_entity_t *_entity)
{
nr_rlc_entity_am_t *entity = (nr_rlc_entity_am_t *)_entity;
return entity->tx_maxsize - entity->tx_size;
}
openair2/LAYER2/nr_rlc/nr_rlc_entity_am.h
+1
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@@ -102,5 +102,6 @@ void nr_rlc_entity_am_set_time(nr_rlc_entity_t *entity, uint64_t now);
void nr_rlc_entity_am_discard_sdu(nr_rlc_entity_t *_entity, int sdu_id);
void nr_rlc_entity_am_reestablishment(nr_rlc_entity_t *_entity);
void nr_rlc_entity_am_delete(nr_rlc_entity_t *entity);
int nr_rlc_entity_am_available_tx_space(nr_rlc_entity_t *entity);
#endif /* _NR_RLC_ENTITY_AM_H_ */
openair2/LAYER2/nr_rlc/nr_rlc_entity_tm.c
+6
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@@ -174,3 +174,9 @@ void nr_rlc_entity_tm_delete(nr_rlc_entity_t *_entity)
clear_entity(entity);
free(entity);
}
int nr_rlc_entity_tm_available_tx_space(nr_rlc_entity_t *_entity)
{
nr_rlc_entity_tm_t *entity = (nr_rlc_entity_tm_t *)_entity;
return entity->tx_maxsize - entity->tx_size;
}
openair2/LAYER2/nr_rlc/nr_rlc_entity_tm.h
+1
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@@ -51,5 +51,6 @@ void nr_rlc_entity_tm_set_time(nr_rlc_entity_t *entity, uint64_t now);
void nr_rlc_entity_tm_discard_sdu(nr_rlc_entity_t *_entity, int sdu_id);
void nr_rlc_entity_tm_reestablishment(nr_rlc_entity_t *_entity);
void nr_rlc_entity_tm_delete(nr_rlc_entity_t *entity);
int nr_rlc_entity_tm_available_tx_space(nr_rlc_entity_t *entity);
#endif /* _NR_RLC_ENTITY_TM_H_ */
openair2/LAYER2/nr_rlc/nr_rlc_entity_um.c
+6
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@@ -695,3 +695,9 @@ void nr_rlc_entity_um_delete(nr_rlc_entity_t *_entity)
clear_entity(entity);
free(entity);
}
int nr_rlc_entity_um_available_tx_space(nr_rlc_entity_t *_entity)
{
nr_rlc_entity_um_t *entity = (nr_rlc_entity_um_t *)_entity;
return entity->tx_maxsize - entity->tx_size;
}
openair2/LAYER2/nr_rlc/nr_rlc_entity_um.h
+1
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@@ -75,5 +75,6 @@ void nr_rlc_entity_um_set_time(nr_rlc_entity_t *entity, uint64_t now);
void nr_rlc_entity_um_discard_sdu(nr_rlc_entity_t *_entity, int sdu_id);
void nr_rlc_entity_um_reestablishment(nr_rlc_entity_t *_entity);
void nr_rlc_entity_um_delete(nr_rlc_entity_t *entity);
int nr_rlc_entity_um_available_tx_space(nr_rlc_entity_t *entity);
#endif /* _NR_RLC_ENTITY_UM_H_ */
openair2/LAYER2/nr_rlc/nr_rlc_oai_api.c
+32 -2
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@@ -101,6 +101,7 @@ void nr_drb_config(struct NR_RLC_Config *rlc_Config, NR_RLC_Config_PR rlc_config
switch (rlc_config_pr){
case NR_RLC_Config_PR_um_Bi_Directional:
// RLC UM Bi-directional Bearer configuration
LOG_I(RLC, "RLC UM Bi-directional Bearer configuration selected \n");
rlc_Config->choice.um_Bi_Directional = calloc(1, sizeof(*rlc_Config->choice.um_Bi_Directional));
rlc_Config->choice.um_Bi_Directional->ul_UM_RLC.sn_FieldLength = calloc(1, sizeof(*rlc_Config->choice.um_Bi_Directional->ul_UM_RLC.sn_FieldLength));
*rlc_Config->choice.um_Bi_Directional->ul_UM_RLC.sn_FieldLength = NR_SN_FieldLengthUM_size12;
@@ -397,6 +398,35 @@ rlc_op_status_t rlc_data_req (const protocol_ctxt_t *const ctxt_pP,
return RLC_OP_STATUS_OK;
}
int nr_rlc_get_available_tx_space(
const rnti_t rntiP,
const logical_chan_id_t channel_idP)
{
nr_rlc_ue_t *ue;
nr_rlc_entity_t *rb;
int ret;
nr_rlc_manager_lock(nr_rlc_ue_manager);
ue = nr_rlc_manager_get_ue(nr_rlc_ue_manager, rntiP);
switch (channel_idP) {
case 1 ... 3: rb = ue->srb[channel_idP - 1]; break;
case 4 ... 8: rb = ue->drb[channel_idP - 1]; break;
default: rb = NULL; break;
}
if (rb != NULL) {
ret = rb->available_tx_space(rb);
} else {
LOG_E(RLC, "[%s] Radio Bearer (channel ID %d) is NULL for UE with rntiP %x\n", __FUNCTION__, channel_idP, rntiP);
ret = -1;
}
nr_rlc_manager_unlock(nr_rlc_ue_manager);
return ret;
}
int rlc_module_init(int enb_flag)
{
static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
@@ -850,11 +880,11 @@ static void add_drb_um(int rnti, struct NR_DRB_ToAddMod *s, NR_RLC_BearerConfig_
exit(1);
}
if (channel_id != drb_id + 3) {
/*if (channel_id != drb_id + 3) {
LOG_E(RLC, "%s:%d:%s: todo, remove this limitation\n",
__FILE__, __LINE__, __FUNCTION__);
exit(1);
}
}*/
logical_channel_group = *l->ul_SpecificParameters->logicalChannelGroup;
openair2/LAYER2/nr_rlc/nr_rlc_oai_api.h
+5 -1
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@@ -46,4 +46,8 @@ void nr_rlc_bearer_init(NR_RLC_BearerConfig_t *RLC_BearerConfig, NR_RLC_BearerCo
void nr_drb_config(struct NR_RLC_Config *rlc_Config, NR_RLC_Config_PR rlc_config_pr);
void nr_rlc_bearer_init_ul_spec(struct NR_LogicalChannelConfig *mac_LogicalChannelConfig);
void nr_rlc_bearer_init_ul_spec(struct NR_LogicalChannelConfig *mac_LogicalChannelConfig);
int nr_rlc_get_available_tx_space(
const rnti_t rntiP,
const logical_chan_id_t channel_idP);
openair2/RRC/NR/rrc_gNB.c
+1 -1
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@@ -3497,7 +3497,7 @@ static void rrc_DU_process_ue_context_modification_request(MessageDef *msg_p, co
gtpv1u_DU_buffer_report_req_t *req=&GTPV1U_DU_BUFFER_REPORT_REQ(msg);
req->pdusession_id = drb_id;
req->rnti = rnti;
req->buffer_availability = 1000000; //Hardcoding to be removed and read the actual RLC buffer availability instead
req->buffer_availability = 10000000; //Hardcoding to be removed and read the actual RLC buffer availability instead
extern instance_t DUuniqInstance;
itti_send_msg_to_task(TASK_GTPV1_U, DUuniqInstance, msg);
openair3/ocp-gtpu/gtp_itf.cpp
+4 -1
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@@ -17,6 +17,7 @@ extern "C" {
#include <openair2/COMMON/gtpv1_u_messages_types.h>
#include <openair3/ocp-gtpu/gtp_itf.h>
#include <openair2/LAYER2/PDCP_v10.1.0/pdcp.h>
#include <openair2/LAYER2/nr_rlc/nr_rlc_oai_api.h>
#include "openair2/SDAP/nr_sdap/nr_sdap_gnb.h"
//#include <openair1/PHY/phy_extern.h>
@@ -999,6 +1000,8 @@ static int Gtpv1uHandleGpdu(int h,
LOG_E(GTPU,"[%d] down layer refused incoming packet\n", h);
if(NR_PDCP_PDU_SN > 0 && NR_PDCP_PDU_SN %5 ==0){
LOG_D (GTPU, "Create and send DL DATA Delivery status for the previously received PDU, NR_PDCP_PDU_SN: %u \n", NR_PDCP_PDU_SN);
int rlc_tx_buffer_space = nr_rlc_get_available_tx_space(ctxt.rnti, rb_id);
LOG_D(GTPU, "Available buffer size in RLC for Tx: %d \n", rlc_tx_buffer_space);
/*Total size of DDD_status PDU = 1 octet to report extension header length
* size of mandatory part + 3 octets for highest transmitted/delivered PDCP SN
* 1 octet for padding + 1 octet for next extension header type,
@@ -1010,7 +1013,7 @@ static int Gtpv1uHandleGpdu(int h,
DlDataDeliveryStatus.deliveredPdcpSn = 0;
DlDataDeliveryStatus.transmittedPdcpSn= 1;
DlDataDeliveryStatus.pduType = 1;
DlDataDeliveryStatus.drbBufferSize = htonl(1000000); //hardcoded for now but normally we should extract it from RLC
DlDataDeliveryStatus.drbBufferSize = htonl(rlc_tx_buffer_space); //htonl(10000000); //hardcoded for now but normally we should extract it from RLC
memcpy(extensionHeader->buffer+1, &DlDataDeliveryStatus, sizeof(DlDataDeliveryStatus_flagsT));
uint8_t offset = sizeof(DlDataDeliveryStatus_flagsT)+1;