maki/openairinterface5g
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Reduce CPU load in PHY stub UE (L2 sim)

Browse Source 
Instead of looping over UEs and all DL config Req/HI DCI0, loop first
over all DL config Req/HI DCI0, and for each, match UE.  Lowers CPU
traffic for high traffic situations.
This commit is contained in:
Robert Schmidt
2020-04-10 00:09:36 +02:00
parent 4df3157a7a
commit a56be93e80
3 changed files with 173 additions and 188 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair2/PHY_INTERFACE/phy_stub_UE.c
+117 -174
View File
@@ -708,199 +708,142 @@ int tx_req_UE_MAC(nfapi_tx_request_t *req) {
return 0;
}
int dl_config_req_UE_MAC(nfapi_dl_config_request_t* req, module_id_t Mod_id) {
int sfn = NFAPI_SFNSF2SFN(req->sfn_sf);
int sf = NFAPI_SFNSF2SF(req->sfn_sf);
void dl_config_req_UE_MAC_dci(int sfn,
int sf,
nfapi_dl_config_request_pdu_t *dci,
nfapi_dl_config_request_pdu_t *dlsch,
int num_ue) {
DevAssert(dci->pdu_type == NFAPI_DL_CONFIG_DCI_DL_PDU_TYPE);
DevAssert(dlsch->pdu_type == NFAPI_DL_CONFIG_DLSCH_PDU_TYPE);
nfapi_dl_config_request_pdu_t* dl_config_pdu_list = req->dl_config_request_body.dl_config_pdu_list;
const rnti_t rnti = dci->dci_dl_pdu.dci_dl_pdu_rel8.rnti;
const int rnti_type = dci->dci_dl_pdu.dci_dl_pdu_rel8.rnti_type;
if (rnti != dlsch->dlsch_pdu.dlsch_pdu_rel8.rnti) {
LOG_E(MAC,
"%s(): sfn/sf %d.%d DLSCH PDU RNTI %x does not match DCI RNTI %x\n",
__func__, sfn, sf, rnti, dlsch->dlsch_pdu.dlsch_pdu_rel8.rnti);
return;
}
for (int i = 0; i < req->dl_config_request_body.number_pdu; i++) {
if (dl_config_pdu_list[i].pdu_type == NFAPI_DL_CONFIG_DCI_DL_PDU_TYPE) {
const rnti_t rnti = dl_config_pdu_list[i].dci_dl_pdu.dci_dl_pdu_rel8.rnti;
const int rnti_type = dl_config_pdu_list[i].dci_dl_pdu.dci_dl_pdu_rel8.rnti_type;
/* We assume the DCI DL PDU is followed by the DLSCH (the standard is
* more free), so advance by one more and directly process the
* following DLSCH PDU */
i++;
AssertFatal(i < req->dl_config_request_body.number_pdu,
"Need PDU following DCI at index %d, but not found\n",
i);
nfapi_dl_config_request_pdu_t *dl_config_pdu_tmp = &dl_config_pdu_list[i];
if (dl_config_pdu_tmp->pdu_type != NFAPI_DL_CONFIG_DLSCH_PDU_TYPE) {
LOG_E(MAC, "expected DLSCH PDU at index %d\n", i);
continue;
}
if (rnti != dl_config_pdu_tmp->dlsch_pdu.dlsch_pdu_rel8.rnti) {
LOG_I(MAC,
"%s(): sfn/sf %d DLSCH PDU RNTI %x does not match DCI RNTI %x\n",
__func__,
NFAPI_SFNSF2DEC(req->sfn_sf),
rnti,
dl_config_pdu_tmp->dlsch_pdu.dlsch_pdu_rel8.rnti);
continue;
}
const int pdu_index = dl_config_pdu_tmp->dlsch_pdu.dlsch_pdu_rel8.pdu_index;
if (pdu_index < 0 || pdu_index >= tx_req_num_elems) {
LOG_E(MAC,
"dl_config_req_UE_MAC 2: Problem with receiving data: "
"sfn/sf:%d PDU[%d] size:%d, TX_PDU index: %d\n",
NFAPI_SFNSF2DEC(req->sfn_sf),
i,
dl_config_pdu_list[i].pdu_size,
dl_config_pdu_tmp->dlsch_pdu.dlsch_pdu_rel8.pdu_index);
continue;
}
if (rnti_type == 1) {
// C-RNTI (Normal DLSCH case)
if (UE_mac_inst[Mod_id].crnti != rnti) {
LOG_D(MAC,
"sfn/sf %d/%d DCI not for UE %d/RNTI %x but for RNTI %x, "
"skipping\n",
sfn, sf, Mod_id, UE_mac_inst[Mod_id].crnti, rnti);
continue;
}
const int pdu_index = dlsch->dlsch_pdu.dlsch_pdu_rel8.pdu_index;
if (pdu_index < 0 || pdu_index >= tx_req_num_elems) {
LOG_E(MAC,
"%s(): Problem with receiving data: "
"sfn/sf:%d.%d PDU size:%d, TX_PDU index: %d\n",
__func__,
sfn, sf, dci->pdu_size, dlsch->dlsch_pdu.dlsch_pdu_rel8.pdu_index);
return;
}
if (rnti_type == 1) { // C-RNTI (Normal DLSCH case)
for (int ue_id = 0; ue_id < num_ue; ue_id++) {
if (UE_mac_inst[ue_id].crnti == rnti) {
LOG_D(MAC,
"%s() Received data: sfn/sf:%d PDU[%d] "
"%s() Received data: sfn/sf:%d.%d "
"size:%d, TX_PDU index: %d, tx_req_num_elems: %d \n",
__func__,
NFAPI_SFNSF2DEC(req->sfn_sf),
i,
dl_config_pdu_list[i].pdu_size,
dl_config_pdu_tmp->dlsch_pdu.dlsch_pdu_rel8.pdu_index,
sfn, sf, dci->pdu_size,
dlsch->dlsch_pdu.dlsch_pdu_rel8.pdu_index,
tx_req_num_elems);
ue_send_sdu(Mod_id, 0, sfn, sf,
ue_send_sdu(ue_id, 0, sfn, sf,
tx_request_pdu_list[pdu_index].segments[0].segment_data,
tx_request_pdu_list[pdu_index].segments[0].segment_length,
0);
} else if (rnti_type == 2) {
if (rnti == 0xFFFF) { /* SI-RNTI */
if (UE_mac_inst[Mod_id].UE_mode[0] == NOT_SYNCHED) {
/* this check is in the code before refactoring, but I don't know
* why. Leave it in here for the moment */
continue;
}
ue_decode_si(Mod_id, 0, sfn, 0,
tx_request_pdu_list[pdu_index].segments[0].segment_data,
tx_request_pdu_list[pdu_index].segments[0].segment_length);
} else if (rnti == 0xFFFE) { /* PI-RNTI */
LOG_I(MAC, "%s() Received paging message: sfn/sf:%d PDU[%d]\n",
__func__, NFAPI_SFNSF2DEC(req->sfn_sf), i);
ue_decode_p(Mod_id, 0, sfn, 0,
tx_request_pdu_list[pdu_index].segments[0].segment_data,
tx_request_pdu_list[pdu_index].segments[0].segment_length);
} else if (rnti == 0x0002) { /* RA-RNTI */
if (UE_mac_inst[Mod_id].UE_mode[0] != RA_RESPONSE) {
LOG_D(MAC, "UE %d not awaiting RAR, is in mode %d\n",
Mod_id, UE_mac_inst[Mod_id].UE_mode[0]);
continue;
}
// RNTI parameter not actually used. Provided only to comply with
// existing function definition. Not sure about parameters to fill
// the preamble index.
const rnti_t ra_rnti = UE_mac_inst[Mod_id].RA_prach_resources.ra_RNTI;
DevAssert(ra_rnti == 0x0002);
if (UE_mac_inst[Mod_id].UE_mode[0] != PUSCH
&& UE_mac_inst[Mod_id].RA_prach_resources.Msg3 != NULL
&& ra_rnti == dl_config_pdu_tmp->dlsch_pdu.dlsch_pdu_rel8.rnti) {
LOG_E(MAC,
"dl_config_req_UE_MAC 5 Received RAR, PreambleIndex: %d \n",
UE_mac_inst[Mod_id].RA_prach_resources.ra_PreambleIndex);
ue_process_rar(Mod_id, 0, sfn,
ra_rnti, //RA-RNTI
tx_request_pdu_list[pdu_index].segments[0].segment_data,
&UE_mac_inst[Mod_id].crnti, //t-crnti
UE_mac_inst[Mod_id].RA_prach_resources.ra_PreambleIndex,
tx_request_pdu_list[pdu_index].segments[0].segment_data);
UE_mac_inst[Mod_id].UE_mode[0] = RA_RESPONSE;
// Expecting an UL_CONFIG_ULSCH_PDU to enable Msg3 Txon (first
// ULSCH Txon for the UE)
UE_mac_inst[Mod_id].first_ULSCH_Tx = 1;
}
} else {
LOG_W(MAC, "can not handle special RNTI %x\n", rnti);
}
}
} else if (dl_config_pdu_list[i].pdu_type == NFAPI_DL_CONFIG_BCH_PDU_TYPE) {
// BCH case: Last parameter is 1 if first time synchronization and zero
// otherwise. Not sure which value to put for our case.
if (UE_mac_inst[Mod_id].UE_mode[0] == NOT_SYNCHED){
dl_phy_sync_success(Mod_id, sfn, 0, 1);
LOG_E(MAC,
"%s(): Received MIB: UE_mode: %d, sfn/sf: %d.%d\n",
__func__,
UE_mac_inst[Mod_id].UE_mode[0],
sfn,
sf);
UE_mac_inst[Mod_id].UE_mode[0] = PRACH;
} else {
dl_phy_sync_success(Mod_id, sfn, 0, 0);
return;
}
}
} else if (rnti_type == 2) {
if (rnti == 0xFFFF) { /* SI-RNTI */
for (int ue_id = 0; ue_id < num_ue; ue_id++) {
if (UE_mac_inst[ue_id].UE_mode[0] == NOT_SYNCHED)
continue;
ue_decode_si(ue_id, 0, sfn, 0,
tx_request_pdu_list[pdu_index].segments[0].segment_data,
tx_request_pdu_list[pdu_index].segments[0].segment_length);
}
} else if (rnti == 0xFFFE) { /* PI-RNTI */
for (int ue_id = 0; ue_id < num_ue; ue_id++) {
LOG_I(MAC, "%s() Received paging message: sfn/sf:%d.%d\n",
__func__, sfn, sf);
ue_decode_p(ue_id, 0, sfn, 0,
tx_request_pdu_list[pdu_index].segments[0].segment_data,
tx_request_pdu_list[pdu_index].segments[0].segment_length);
}
} else if (rnti == 0x0002) { /* RA-RNTI */
for (int ue_id = 0; ue_id < num_ue; ue_id++) {
if (UE_mac_inst[ue_id].UE_mode[0] != RA_RESPONSE) {
LOG_D(MAC, "UE %d not awaiting RAR, is in mode %d\n",
ue_id, UE_mac_inst[ue_id].UE_mode[0]);
continue;
}
// RNTI parameter not actually used. Provided only to comply with
// existing function definition. Not sure about parameters to fill
// the preamble index.
const rnti_t ra_rnti = UE_mac_inst[ue_id].RA_prach_resources.ra_RNTI;
DevAssert(ra_rnti == 0x0002);
if (UE_mac_inst[ue_id].UE_mode[0] != PUSCH
&& UE_mac_inst[ue_id].RA_prach_resources.Msg3 != NULL
&& ra_rnti == dlsch->dlsch_pdu.dlsch_pdu_rel8.rnti) {
LOG_E(MAC,
"%s(): Received RAR, PreambleIndex: %d\n",
__func__, UE_mac_inst[ue_id].RA_prach_resources.ra_PreambleIndex);
ue_process_rar(ue_id, 0, sfn,
ra_rnti, //RA-RNTI
tx_request_pdu_list[pdu_index].segments[0].segment_data,
&UE_mac_inst[ue_id].crnti, //t-crnti
UE_mac_inst[ue_id].RA_prach_resources.ra_PreambleIndex,
tx_request_pdu_list[pdu_index].segments[0].segment_data);
UE_mac_inst[ue_id].UE_mode[0] = RA_RESPONSE;
// Expecting an UL_CONFIG_ULSCH_PDU to enable Msg3 Txon (first
// ULSCH Txon for the UE)
UE_mac_inst[ue_id].first_ULSCH_Tx = 1;
}
}
} else {
LOG_W(MAC, "can not handle special RNTI %x\n", rnti);
}
}
return 0;
}
int hi_dci0_req_UE_MAC(nfapi_hi_dci0_request_t *req, module_id_t Mod_id) {
if (req != NULL && req->hi_dci0_request_body.hi_dci0_pdu_list != NULL) {
LOG_D(PHY,
"[UE-PHY_STUB] hi dci0 request sfn_sf:%d number_of_dci:%d "
"number_of_hi:%d\n",
NFAPI_SFNSF2DEC(req->sfn_sf),
req->hi_dci0_request_body.number_of_dci,
req->hi_dci0_request_body.number_of_hi);
void dl_config_req_UE_MAC_bch(int sfn,
int sf,
nfapi_dl_config_request_pdu_t *bch,
int num_ue) {
DevAssert(bch->pdu_type == NFAPI_DL_CONFIG_BCH_PDU_TYPE);
for (int i = 0; i < req->hi_dci0_request_body.number_of_dci
+ req->hi_dci0_request_body.number_of_hi;
i++) {
LOG_D(PHY,
"[UE-PHY_STUB] HI_DCI0_REQ sfn_sf:%d PDU[%d]\n",
NFAPI_SFNSF2DEC(req->sfn_sf),
i);
if (req->hi_dci0_request_body.hi_dci0_pdu_list[i].pdu_type
== NFAPI_HI_DCI0_DCI_PDU_TYPE) {
LOG_D(PHY,
"[UE-PHY_STUB] HI_DCI0_REQ sfn_sf:%d PDU[%d] - "
"NFAPI_HI_DCI0_DCI_PDU_TYPE\n",
NFAPI_SFNSF2DEC(req->sfn_sf),
i);
const nfapi_hi_dci0_dci_pdu_rel8_t *dci =
&req->hi_dci0_request_body.hi_dci0_pdu_list[i].dci_pdu.dci_pdu_rel8;
if (dci->rnti != UE_mac_inst[Mod_id].crnti)
continue;
const int sfn = NFAPI_SFNSF2SFN(req->sfn_sf);
const int sf = NFAPI_SFNSF2SF(req->sfn_sf);
if (dci->cqi_csi_request)
fill_ulsch_cqi_indication_UE_MAC(Mod_id, sfn, sf, UL_INFO, dci->rnti);
} else if (req->hi_dci0_request_body.hi_dci0_pdu_list[i].pdu_type
== NFAPI_HI_DCI0_HI_PDU_TYPE) {
nfapi_hi_dci0_request_pdu_t *hi_dci0_req_pdu =
&req->hi_dci0_request_body.hi_dci0_pdu_list[i];
// This is meaningful only after ACKnowledging the first ULSCH Txon
// (i.e. Msg3)
if (hi_dci0_req_pdu->hi_pdu.hi_pdu_rel8.hi_value == 1
&& UE_mac_inst[Mod_id].first_ULSCH_Tx == 1) {
// LOG_I(MAC,"[UE-PHY_STUB] HI_DCI0_REQ 2 sfn_sf:%d PDU[%d] -
// NFAPI_HI_DCI0_HI_PDU_TYPE\n", NFAPI_SFNSF2DEC(req->sfn_sf), i);
// UE_mac_inst[Mod_id].UE_mode[0] = PUSCH;
// UE_mac_inst[Mod_id].first_ULSCH_Tx = 0;
}
} else {
LOG_E(PHY,
"[UE-PHY_STUB] HI_DCI0_REQ sfn_sf:%d PDU[%d] - unknown pdu "
"type:%d\n",
NFAPI_SFNSF2DEC(req->sfn_sf),
i,
req->hi_dci0_request_body.hi_dci0_pdu_list[i].pdu_type);
}
for (int ue_id = 0; ue_id < num_ue; ue_id++) {
if (UE_mac_inst[ue_id].UE_mode[0] == NOT_SYNCHED){
dl_phy_sync_success(ue_id, sfn, 0, 1);
LOG_E(MAC,
"%s(): Received MIB: UE_mode: %d, sfn/sf: %d.%d\n",
__func__,
UE_mac_inst[ue_id].UE_mode[0],
sfn,
sf);
UE_mac_inst[ue_id].UE_mode[0] = PRACH;
} else {
dl_phy_sync_success(ue_id, sfn, 0, 0);
}
}
}
return 0;
void hi_dci0_req_UE_MAC(int sfn,
int sf,
nfapi_hi_dci0_request_pdu_t* hi_dci0,
int num_ue) {
if (hi_dci0->pdu_type != NFAPI_HI_DCI0_DCI_PDU_TYPE)
return;
const nfapi_hi_dci0_dci_pdu_rel8_t *dci = &hi_dci0->dci_pdu.dci_pdu_rel8;
if (!dci->cqi_csi_request)
return;
for (int ue_id = 0; ue_id < num_ue; ue_id++) {
if (dci->rnti == UE_mac_inst[ue_id].crnti) {
fill_ulsch_cqi_indication_UE_MAC(ue_id, sfn, sf, UL_INFO, dci->rnti);
return;
}
}
}
// The following set of memcpy functions should be getting called as callback
openair2/PHY_INTERFACE/phy_stub_UE.h
+13 -3
View File
@@ -93,13 +93,23 @@ void handle_nfapi_ul_pdu_UE_MAC(module_id_t Mod_id,
nfapi_ul_config_request_pdu_t *ul_config_pdu,
uint16_t frame,uint8_t subframe,uint8_t srs_present, int index);
//int dl_config_req_UE_MAC(nfapi_dl_config_request_t* req, nfapi_tx_request_pdu_t* tx_request_pdu_list);
int dl_config_req_UE_MAC(nfapi_dl_config_request_t* req, module_id_t Mod_id);
void dl_config_req_UE_MAC_dci(int sfn,
int sf,
nfapi_dl_config_request_pdu_t *dci,
nfapi_dl_config_request_pdu_t *dlsch,
int num_ue);
void dl_config_req_UE_MAC_bch(int sfn,
int sf,
nfapi_dl_config_request_pdu_t *bch,
int num_ue);
int tx_req_UE_MAC(nfapi_tx_request_t* req);
int hi_dci0_req_UE_MAC(nfapi_hi_dci0_request_t* req, module_id_t Mod_id);
void hi_dci0_req_UE_MAC(int sfn,
int sf,
nfapi_hi_dci0_request_pdu_t* bch,
int num_ue);
// The following set of memcpy functions should be getting called as callback functions from
// pnf_p7_subframe_ind.
targets/RT/USER/lte-ue.c
+43 -11
View File
@@ -1108,6 +1108,45 @@ static void *UE_phy_stub_single_thread_rxn_txnp4(void *arg)
}
}
if (dl_config_req && tx_request_pdu_list) {
nfapi_dl_config_request_body_t* dl_config_req_body = &dl_config_req->dl_config_request_body;
for (int i = 0; i < dl_config_req_body->number_pdu; ++i) {
nfapi_dl_config_request_pdu_t* pdu = &dl_config_req_body->dl_config_pdu_list[i];
if (pdu->pdu_type == NFAPI_DL_CONFIG_DCI_DL_PDU_TYPE) {
i += 1;
AssertFatal(i < dl_config_req->dl_config_request_body.number_pdu,
"Need PDU following DCI at index %d, but not found\n",
i);
nfapi_dl_config_request_pdu_t *dlsch = &dl_config_req_body->dl_config_pdu_list[i];
if (dlsch->pdu_type != NFAPI_DL_CONFIG_DLSCH_PDU_TYPE) {
LOG_E(MAC, "expected DLSCH PDU at index %d\n", i);
continue;
}
dl_config_req_UE_MAC_dci(NFAPI_SFNSF2SFN(dl_config_req->sfn_sf),
NFAPI_SFNSF2SF(dl_config_req->sfn_sf),
pdu,
dlsch,
ue_num);
} else if (pdu->pdu_type == NFAPI_DL_CONFIG_BCH_PDU_TYPE) {
dl_config_req_UE_MAC_bch(NFAPI_SFNSF2SFN(dl_config_req->sfn_sf),
NFAPI_SFNSF2SF(dl_config_req->sfn_sf),
pdu,
ue_num);
}
}
}
if (hi_dci0_req) {
nfapi_hi_dci0_request_body_t *hi_dci0_body = &hi_dci0_req->hi_dci0_request_body;
for (int i = 0; i < hi_dci0_body->number_of_dci + hi_dci0_body->number_of_hi; i++) {
nfapi_hi_dci0_request_pdu_t* pdu = &hi_dci0_body->hi_dci0_pdu_list[i];
hi_dci0_req_UE_MAC(NFAPI_SFNSF2SFN(hi_dci0_req->sfn_sf),
NFAPI_SFNSF2SF(hi_dci0_req->sfn_sf),
pdu,
ue_num);
}
}
//for (Mod_id=0; Mod_id<NB_UE_INST; Mod_id++) {
for (ue_index=0; ue_index < ue_num; ue_index++) {
ue_Mod_id = ue_thread_id + NB_THREAD_INST*ue_index;
@@ -1136,15 +1175,6 @@ static void *UE_phy_stub_single_thread_rxn_txnp4(void *arg)
phy_procedures_UE_SL_RX(UE,proc);
if (dl_config_req!=NULL && tx_request_pdu_list!=NULL) {
//if(dl_config_req!= NULL) {
dl_config_req_UE_MAC(dl_config_req, ue_Mod_id);
}
if (hi_dci0_req!=NULL && hi_dci0_req->hi_dci0_request_body.hi_dci0_pdu_list!=NULL) {
hi_dci0_req_UE_MAC(hi_dci0_req, ue_Mod_id);
}
if(NFAPI_MODE!=NFAPI_UE_STUB_PNF)
phy_procedures_UE_SL_TX(UE,proc);
}
@@ -1413,12 +1443,14 @@ static void *UE_phy_stub_thread_rxn_txnp4(void *arg)
oai_subframe_ind(timer_frame, timer_subframe);
if(dl_config_req!= NULL) {
dl_config_req_UE_MAC(dl_config_req, Mod_id);
AssertFatal(0, "dl_config_req_UE_MAC() not handled\n");
//dl_config_req_UE_MAC(dl_config_req, Mod_id);
}
//if(UE_mac_inst[Mod_id].hi_dci0_req!= NULL){
if (hi_dci0_req!=NULL && hi_dci0_req->hi_dci0_request_body.hi_dci0_pdu_list!=NULL) {
hi_dci0_req_UE_MAC(hi_dci0_req, Mod_id);
AssertFatal(0, "hi_dci0_req_UE_MAC() not handled\n");
//hi_dci0_req_UE_MAC(hi_dci0_req, Mod_id);
//if(UE_mac_inst[Mod_id].hi_dci0_req->hi_dci0_request_body.hi_dci0_pdu_list!=NULL){
free(hi_dci0_req->hi_dci0_request_body.hi_dci0_pdu_list);
hi_dci0_req->hi_dci0_request_body.hi_dci0_pdu_list = NULL;