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Introduce slot indication tick to run (DL) scheduler

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The next commit introduces a separate gNB TX processing thread. To
properly separate DL scheduler (for scheduling decisions) from UL
indication handling (for UL packets), this commit introduces a slot
indication "tick" to run the DL scheduler which will be put into the gNB
TX processing chain instead of the UL indication.
This commit is contained in:
Robert Schmidt
2024-02-06 16:21:31 +01:00
parent 94a0704e43
commit 88852dc9af
3 changed files with 56 additions and 51 deletions
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104
openair2/NR_PHY_INTERFACE/NR_IF_Module.c
View File

@@ -385,12 +385,49 @@ static void match_crc_rx_pdu(nfapi_nr_rx_data_indication_t *rx_ind, nfapi_nr_crc
}
}
static void run_scheduler(module_id_t module_id, int CC_id, int frame, int slot)
{
NR_IF_Module_t *ifi = nr_if_inst[module_id];
// gNB_MAC_INST *mac = RC.nrmac[module_id];
NR_Sched_Rsp_t *sched_info;
LOG_D(NR_MAC, "Calling scheduler for %d.%d\n", frame, slot);
sched_info = allocate_sched_response();
// clear UL DCI prior to handling ULSCH
sched_info->UL_dci_req.numPdus = 0;
gNB_dlsch_ulsch_scheduler(module_id, frame, slot, sched_info);
ifi->CC_mask = 0;
sched_info->module_id = module_id;
sched_info->CC_id = CC_id;
sched_info->frame = frame;
sched_info->slot = slot;
/*
sched_info->DL_req = &mac->DL_req[CC_id];
sched_info->UL_dci_req = &mac->UL_dci_req[CC_id];
sched_info->UL_tti_req = mac->UL_tti_req[CC_id];
sched_info->TX_req = &mac->TX_req[CC_id];
*/
#ifdef DUMP_FAPI
dump_dl(sched_info);
#endif
AssertFatal(ifi->NR_Schedule_response != NULL, "nr_schedule_response is null (mod %d, cc %d)\n", module_id, CC_id);
ifi->NR_Schedule_response(sched_info);
LOG_D(NR_PHY,
"NR_Schedule_response: SFN SLOT:%d %d dl_pdus:%d\n",
sched_info->frame,
sched_info->slot,
sched_info->DL_req.dl_tti_request_body.nPDUs);
}
void NR_UL_indication(NR_UL_IND_t *UL_info) {
AssertFatal(UL_info!=NULL,"UL_info is null\n");
module_id_t module_id = UL_info->module_id;
int CC_id = UL_info->CC_id;
NR_Sched_Rsp_t *sched_info;
NR_IF_Module_t *ifi = nr_if_inst[module_id];
module_id_t module_id = UL_info->module_id;
int CC_id = UL_info->CC_id;
LOG_D(NR_PHY,"SFN/SLOT:%d.%d module_id:%d CC_id:%d UL_info[rach_pdus:%zu rx_ind:%zu crcs:%zu]\n",
UL_info->frame, UL_info->slot,
@@ -449,56 +486,20 @@ void NR_UL_indication(NR_UL_IND_t *UL_info) {
if (get_softmodem_params()->emulate_l1) {
free_unqueued_nfapi_indications(rach_ind, uci_ind, rx_ind, crc_ind);
}
if (NFAPI_MODE != NFAPI_MODE_PNF) {
gNB_MAC_INST *mac = RC.nrmac[module_id];
if (ifi->CC_mask==0) {
ifi->current_frame = UL_info->frame;
ifi->current_slot = UL_info->slot;
} else {
AssertFatal(UL_info->frame != ifi->current_frame,"CC_mask %x is not full and frame has changed\n",ifi->CC_mask);
AssertFatal(UL_info->slot != ifi->current_slot,"CC_mask %x is not full and slot has changed\n",ifi->CC_mask);
}
gNB_MAC_INST *mac = RC.nrmac[module_id];
ifi->CC_mask |= (1<<CC_id);
NR_IF_Module_t *ifi = nr_if_inst[module_id];
ifi->current_frame = UL_info->frame;
ifi->current_slot = UL_info->slot;
if (ifi->CC_mask == ((1<<MAX_NUM_CCs)-1)) {
/*
eNB_dlsch_ulsch_scheduler(module_id,
(UL_info->frame+((UL_info->slot>(9-sl_ahead))?1:0)) % 1024,
(UL_info->slot+sl_ahead)%10);
*/
nfapi_nr_config_request_scf_t *cfg = &mac->config[CC_id];
int spf = get_spf(cfg);
sched_info = allocate_sched_response();
// clear UL DCI prior to handling ULSCH
sched_info->UL_dci_req.numPdus = 0;
gNB_dlsch_ulsch_scheduler(module_id,
(UL_info->frame + ((UL_info->slot > (spf - 1 - ifi->sl_ahead)) ? 1 : 0)) % 1024,
(UL_info->slot + ifi->sl_ahead) % spf,
sched_info);
ifi->CC_mask = 0;
sched_info->module_id = module_id;
sched_info->CC_id = CC_id;
sched_info->frame = (UL_info->frame + ((UL_info->slot>(spf-1-ifi->sl_ahead)) ? 1 : 0)) % 1024;
sched_info->slot = (UL_info->slot+ifi->sl_ahead)%spf;
#ifdef DUMP_FAPI
dump_dl(sched_info);
#endif
AssertFatal(ifi->NR_Schedule_response!=NULL,
"nr_schedule_response is null (mod %d, cc %d)\n",
module_id,
CC_id);
ifi->NR_Schedule_response(sched_info);
LOG_D(NR_PHY,
"NR_Schedule_response: SFN SLOT:%d %d dl_pdus:%d\n",
sched_info->frame,
sched_info->slot,
sched_info->DL_req.dl_tti_request_body.nPDUs);
}
nfapi_nr_config_request_scf_t *cfg = &mac->config[CC_id];
int spf = get_spf(cfg);
int CC_id = 0;
int frame_tx = UL_info->frame + ((UL_info->slot > (spf - 1 - ifi->sl_ahead)) ? 1 : 0);
int slot_tx = (UL_info->slot + ifi->sl_ahead) % spf;
ifi->NR_slot_indication(module_id, CC_id, frame_tx, slot_tx);
}
}
@@ -514,6 +515,7 @@ NR_IF_Module_t *NR_IF_Module_init(int Mod_id) {
nr_if_inst[Mod_id]->CC_mask=0;
nr_if_inst[Mod_id]->NR_UL_indication = NR_UL_indication;
nr_if_inst[Mod_id]->NR_slot_indication = run_scheduler;
AssertFatal(pthread_mutex_init(&nr_if_inst[Mod_id]->if_mutex,NULL)==0,
"allocation of nr_if_inst[%d]->if_mutex fails\n",Mod_id);
}

1
openair2/NR_PHY_INTERFACE/NR_IF_Module.h
View File

@@ -113,6 +113,7 @@ typedef struct NR_IF_Module_s {
//define the function pointer
void (*NR_UL_indication)(NR_UL_IND_t *UL_INFO);
void (*NR_Schedule_response)(NR_Sched_Rsp_t *Sched_INFO);
void (*NR_slot_indication)(module_id_t module_idP, int CC_id, int frame, int slot);
void (*NR_PHY_config_req)(NR_PHY_Config_t *config_INFO);
uint32_t CC_mask;
uint16_t current_frame;