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Handle tx_data.request efficiently

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Avoid delays in tx_data.request handling by avoiding big malloc()s and
copy operations. Reimplement function to (1) peek the frame/slot
numbers, (2) decide on buffer, and (3) unpack directly into
pre-allocated memory.

Co-authored-by: hsum <ming-hong.hsu@eurecom.fr>
Co-authored-by: chenyi <Yi-Quan.Chen@eurecom.fr>
Co-authored-by: Rúben Soares Silva <rsilva@allbesmart.pt>
This commit is contained in:
Robert Schmidt
2025-01-27 10:59:19 +01:00
co-authored by hsum chenyi Rúben Soares Silva
parent 8da4e92189
commit 10beee4fd6
2 changed files with 44 additions and 106 deletions
Download Patch File Download Diff File Expand all files Collapse all files
nfapi/open-nFAPI/pnf/public_inc/nfapi_pnf_interface.h
+1 -1
View File
@@ -577,7 +577,7 @@ typedef struct
nfapi_nr_dl_tti_request_t* dl_tti_req;//nfapi_dl_config_request_t* dl_config_req;
nfapi_nr_ul_tti_request_t* ul_tti_req;//nfapi_ul_config_request_t* ul_config_req;
nfapi_nr_ul_dci_request_t* ul_dci_req;//nfapi_hi_dci0_request_t* hi_dci0_req;
nfapi_nr_tx_data_request_t* tx_data_req;//nfapi_tx_request_t* tx_req;
nfapi_nr_tx_data_request_t tx_data_req;
//TODO: check these two later
//nfapi_lbt_dl_config_request_t* lbt_dl_config_req;
nfapi/open-nFAPI/pnf/src/pnf_p7.c
+43 -105
View File
@@ -273,32 +273,11 @@ void deallocate_nfapi_hi_dci0_request(nfapi_hi_dci0_request_t* req, pnf_p7_t* pn
pnf_p7_free(pnf_p7, req);
}
nfapi_nr_tx_data_request_t* allocate_nfapi_tx_data_request(pnf_p7_t* pnf_p7)
{
return pnf_p7_malloc(pnf_p7, sizeof(nfapi_nr_tx_data_request_t));
}
nfapi_tx_request_t* allocate_nfapi_tx_request(pnf_p7_t* pnf_p7)
{
return pnf_p7_malloc(pnf_p7, sizeof(nfapi_tx_request_t));
}
//TODO: Check if deallocate_nfapi_tx_data_request defn is proper
void deallocate_nfapi_tx_data_request(nfapi_nr_tx_data_request_t* req, pnf_p7_t* pnf_p7)
{
/*
if(pnf_p7->_public.codec_config.deallocate)
{
(pnf_p7->_public.codec_config.deallocate)(req->pdu_list);
}
else
{
free(req->pdu_list);
}
*/
pnf_p7_free(pnf_p7, req);
}
void deallocate_nfapi_tx_request(nfapi_tx_request_t* req, pnf_p7_t* pnf_p7)
{
int i = 0;
@@ -931,13 +910,12 @@ int pnf_p7_slot_ind(pnf_p7_t* pnf_p7, uint16_t phy_id, uint16_t sfn, uint16_t sl
(pnf_p7->_public.ul_tti_req_fn)(NULL, &(pnf_p7->_public), tx_slot_buffer->ul_tti_req);
}
if(tx_slot_buffer->tx_data_req != 0 && tx_slot_buffer->tx_data_req->SFN == sfn_tx && tx_slot_buffer->tx_data_req->Slot == slot_tx)
if(tx_slot_buffer->tx_data_req.Number_of_PDUs > 0 && tx_slot_buffer->tx_data_req.SFN == sfn_tx && tx_slot_buffer->tx_data_req.Slot == slot_tx)
{
DevAssert(pnf_p7->_public.tx_data_req_fn != NULL);
LOG_D(PHY, "Process tx_data SFN/slot %d.%d buffer index: %d \n",sfn_tx,slot_tx,buffer_index_tx);
// pnf_phy_tx_data_req()
(pnf_p7->_public.tx_data_req_fn)(&(pnf_p7->_public), tx_slot_buffer->tx_data_req);
(pnf_p7->_public.tx_data_req_fn)(&(pnf_p7->_public), &tx_slot_buffer->tx_data_req);
tx_slot_buffer->tx_data_req.SFN = -1;
tx_slot_buffer->tx_data_req.Slot = - 1;
}
@@ -958,12 +936,6 @@ int pnf_p7_slot_ind(pnf_p7_t* pnf_p7, uint16_t phy_id, uint16_t sfn, uint16_t sl
LOG_D(PHY,"SFN/slot %d.%d Buffer index : %d freed \n",sfn_tx,slot_tx,buffer_index_tx);
}
if(tx_slot_buffer->tx_data_req != 0)
{
//deallocate_nfapi_tx_data_request(tx_slot_buffer->tx_data_req, pnf_p7);
tx_slot_buffer->tx_data_req = 0;
}
if(tx_slot_buffer->ul_dci_req != 0)
{
deallocate_nfapi_ul_dci_request(tx_slot_buffer->ul_dci_req, pnf_p7);
@@ -983,7 +955,6 @@ int pnf_p7_slot_ind(pnf_p7_t* pnf_p7, uint16_t phy_id, uint16_t sfn, uint16_t sl
//reset slot buffer
if ( rx_slot_buffer->dl_tti_req == 0 &&
rx_slot_buffer->tx_data_req == 0 &&
rx_slot_buffer->ul_tti_req == 0)
{
pnf_p7->slot_buffer[buffer_index_rx].sfn = -1;
@@ -1856,87 +1827,54 @@ void pnf_handle_hi_dci0_request(void* pRecvMsg, int recvMsgLen, pnf_p7_t* pnf_p7
}
}
void pnf_handle_tx_data_request(void* pRecvMsg, int recvMsgLen, pnf_p7_t* pnf_p7)
{
//NFAPI_TRACE(NFAPI_TRACE_INFO, "TX.req Received\n");
nfapi_nr_tx_data_request_t* req = allocate_nfapi_tx_data_request(pnf_p7);
uint16_t frame, slot;
if (peek_nr_nfapi_p7_sfn_slot(pRecvMsg, recvMsgLen, &frame, &slot)) {
if (pthread_mutex_lock(&(pnf_p7->mutex)) != 0) {
NFAPI_TRACE(NFAPI_TRACE_INFO, "failed to lock mutex\n");
return;
}
if (check_nr_nfapi_p7_slot_type(frame, slot, "TX_DATA.REQUEST", NR_DOWNLINK_SLOT)
&& is_nr_p7_request_in_window(frame, slot, "tx_request", pnf_p7)) {
uint32_t sfn_slot_dec = NFAPI_SFNSLOT2DEC(frame, slot);
uint8_t buffer_index = sfn_slot_dec % 20;
pnf_p7->slot_buffer[buffer_index].sfn = frame;
pnf_p7->slot_buffer[buffer_index].slot = slot;
nfapi_nr_tx_data_request_t *req = &pnf_p7->slot_buffer[buffer_index].tx_data_req;
pnf_p7->stats.tx_data_ontime++;
if(req == NULL)
{
NFAPI_TRACE(NFAPI_TRACE_INFO, "failed to allocate nfapi_tx_request structure\n");
return;
}
NFAPI_TRACE(NFAPI_TRACE_DEBUG,
"POPULATE TX_data.request current tx sfn/slot:%d.%d p7 msg sfn/slot: %d.%d buffer_index:%d\n",
pnf_p7->sfn,
pnf_p7->slot,
frame,
slot,
buffer_index);
int unpack_result = nfapi_nr_p7_message_unpack(pRecvMsg, recvMsgLen, req, sizeof(nfapi_nr_tx_data_request_t), &pnf_p7->_public.codec_config);
if(unpack_result == 0)
{
if(pthread_mutex_lock(&(pnf_p7->mutex)) != 0)
{
NFAPI_TRACE(NFAPI_TRACE_INFO, "failed to lock mutex\n");
return;
}
if (nfapi_nr_p7_message_unpack(pRecvMsg, recvMsgLen, req, sizeof(*req), &pnf_p7->_public.codec_config) != 0)
NFAPI_TRACE(NFAPI_TRACE_ERROR, "failed to unpack TX_data.request\n");
} else {
NFAPI_TRACE(NFAPI_TRACE_INFO,
"%s() TX_DATA_REQUEST Request is outside of window REQ:SFN_SLOT:%d CURR:SFN_SLOT:%d\n",
__FUNCTION__,
NFAPI_SFNSLOT2DEC(frame, slot),
NFAPI_SFNSLOT2DEC(pnf_p7->sfn, pnf_p7->slot));
if(is_nr_p7_request_in_window(req->SFN, req->Slot,"tx_request", pnf_p7))
{
uint32_t sfn_slot_dec = NFAPI_SFNSLOT2DEC(req->SFN,req->Slot);
uint8_t buffer_index = sfn_slot_dec % 20;
if (pnf_p7->_public.timing_info_mode_aperiodic) {
pnf_p7->timing_info_aperiodic_send = 1;
}
struct timespec t;
clock_gettime(CLOCK_MONOTONIC, &t);
pnf_p7->stats.tx_data_late++;
}
//NFAPI_TRACE(NFAPI_TRACE_INFO,"%s() %ld.%09ld POPULATE TX_DATA_REQ sfn_sf:%d buffer_index:%d\n", __FUNCTION__, t.tv_sec, t.tv_nsec, sfn_slot_dec, buffer_index);
#if 0
if (0 && NFAPI_SFNSF2DEC(req->sfn_sf)%100==0) NFAPI_TRACE(NFAPI_TRACE_INFO, "%s() TX_REQ.req sfn_sf:%d pdus:%d - TX_REQ is within window\n",
__FUNCTION__,
NFAPI_SFNSF2DEC(req->sfn_sf),
req->tx_request_body.number_of_pdus);
#endif
if(pnf_p7->slot_buffer[buffer_index].tx_data_req != 0)
{
//NFAPI_TRACE(NFAPI_TRACE_NOTE, "[%d] Freeing tx_req at index %d (%d/%d)",
// pMyPhyInfo->sfnSf, bufferIdx,
// SFNSF2SFN(dreq->sfn_sf), SFNSF2SF(dreq->sfn_sf));
deallocate_nfapi_tx_data_request(pnf_p7->slot_buffer[buffer_index].tx_data_req, pnf_p7);
}
pnf_p7->slot_buffer[buffer_index].sfn = req->SFN;
pnf_p7->slot_buffer[buffer_index].slot = req->Slot;
pnf_p7->slot_buffer[buffer_index].tx_data_req = req;
pnf_p7->stats.tx_data_ontime++;
}
else
{
NFAPI_TRACE(NFAPI_TRACE_INFO,"%s() TX_DATA_REQUEST Request is outside of window REQ:SFN_SLOT:%d CURR:SFN_SLOT:%d\n", __FUNCTION__, NFAPI_SFNSLOT2DEC(req->SFN,req->Slot), NFAPI_SFNSLOT2DEC(pnf_p7->sfn,pnf_p7->slot));
deallocate_nfapi_tx_data_request(req, pnf_p7);
if(pnf_p7->_public.timing_info_mode_aperiodic)
{
pnf_p7->timing_info_aperiodic_send = 1;
}
pnf_p7->stats.tx_data_late++;
}
if(pthread_mutex_unlock(&(pnf_p7->mutex)) != 0)
{
NFAPI_TRACE(NFAPI_TRACE_INFO, "failed to unlock mutex\n");
return;
}
}
else
{
deallocate_nfapi_tx_data_request(req, pnf_p7);
}
if (pthread_mutex_unlock(&(pnf_p7->mutex)) != 0) {
NFAPI_TRACE(NFAPI_TRACE_INFO, "failed to unlock mutex\n");
return;
}
}
}
void pnf_handle_tx_request(void* pRecvMsg, int recvMsgLen, pnf_p7_t* pnf_p7)
{
//NFAPI_TRACE(NFAPI_TRACE_INFO, "TX.req Received\n");