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srsLTE
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Moved updating the notify info to it's own function.

This commit is contained in:
Pedro Alvarez 2021-01-15 13:07:30 +00:00
parent de669d214a
commit 389cf4d943
2 changed files with 38 additions and 26 deletions
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9
lib/include/srslte/upper/rlc_am_lte.h
View File

@ -124,10 +124,11 @@ private:
void set_bsr_callback(bsr_callback_t callback);
private:
int build_status_pdu(uint8_t* payload, uint32_t nof_bytes);
int build_retx_pdu(uint8_t* payload, uint32_t nof_bytes);
int build_segment(uint8_t* payload, uint32_t nof_bytes, rlc_amd_retx_t retx);
int build_data_pdu(uint8_t* payload, uint32_t nof_bytes);
int build_status_pdu(uint8_t* payload, uint32_t nof_bytes);
int build_retx_pdu(uint8_t* payload, uint32_t nof_bytes);
int build_segment(uint8_t* payload, uint32_t nof_bytes, rlc_amd_retx_t retx);
int build_data_pdu(uint8_t* payload, uint32_t nof_bytes);
void update_notification_ack_info(const rlc_amd_tx_pdu_t& tx_pdu, std::vector<uint32_t>& notify_info_vec);
void debug_state();

55
lib/src/upper/rlc_am_lte.cc
View File

@ -1050,28 +1050,7 @@ void rlc_am_lte::rlc_am_lte_tx::handle_control_pdu(uint8_t* payload, uint32_t no
it = tx_window.find(i);
if (it != tx_window.end()) {
if (update_vt_a) {
// Notify PDCP of the number of bytes succesfully delivered
uint32_t notified_bytes = 0;
uint32_t nof_bytes = 0;
uint32_t pdcp_sn = 0;
for (uint32_t pdcp_notify_it = 0; pdcp_notify_it < it->second.header.N_li; pdcp_notify_it++) {
nof_bytes = it->second.header.li[pdcp_notify_it];
pdcp_sn = it->second.pdcp_tx_counts[pdcp_notify_it];
undelivered_sdu_info_queue[pdcp_sn].acked_bytes += nof_bytes;
if (undelivered_sdu_info_queue[pdcp_sn].acked_bytes >= undelivered_sdu_info_queue[pdcp_sn].total_bytes) {
undelivered_sdu_info_queue.erase(pdcp_sn);
notify_info_vec.push_back(pdcp_sn);
log->debug("Reporting to PDCP: TX COUNT=%d, nof_bytes=%d\n", pdcp_sn, nof_bytes);
}
}
pdcp_sn = it->second.pdcp_tx_counts[it->second.header.N_li];
nof_bytes = it->second.buf->N_bytes - notified_bytes; // Notify last SDU
undelivered_sdu_info_queue[pdcp_sn].acked_bytes += nof_bytes;
if (undelivered_sdu_info_queue[pdcp_sn].acked_bytes >= undelivered_sdu_info_queue[pdcp_sn].total_bytes) {
undelivered_sdu_info_queue.erase(pdcp_sn);
notify_info_vec.push_back(pdcp_sn);
log->debug("Reporting to PDCP: TX COUNT=%d, nof_bytes=%d\n", pdcp_sn, nof_bytes);
}
update_notification_ack_info(it->second, notify_info_vec);
tx_window.erase(it);
vt_a = (vt_a + 1) % MOD;
vt_ms = (vt_ms + 1) % MOD;
@ -1091,6 +1070,38 @@ void rlc_am_lte::rlc_am_lte_tx::handle_control_pdu(uint8_t* payload, uint32_t no
pthread_mutex_unlock(&mutex);
}
/*
* Helper function to detect whether a PDU has been fully ack'ed and the PDCP needs to be notified about it
* @tx_pdu: RLC PDU that was ack'ed.
* @notify_info_vec: Vector which will keep track of the PDCP PDU SNs that have been fully ack'ed.
*/
void rlc_am_lte::rlc_am_lte_tx::update_notification_ack_info(const rlc_amd_tx_pdu_t& tx_pdu,
std::vector<uint32_t>& notify_info_vec)
{
// Notify PDCP of the number of bytes succesfully delivered
uint32_t notified_bytes = 0;
uint32_t nof_bytes = 0;
uint32_t pdcp_sn = 0;
for (uint32_t pdcp_notify_it = 0; pdcp_notify_it < tx_pdu.header.N_li; pdcp_notify_it++) {
nof_bytes = tx_pdu.header.li[pdcp_notify_it];
pdcp_sn = tx_pdu.pdcp_tx_counts[pdcp_notify_it];
undelivered_sdu_info_queue[pdcp_sn].acked_bytes += nof_bytes;
if (undelivered_sdu_info_queue[pdcp_sn].acked_bytes >= undelivered_sdu_info_queue[pdcp_sn].total_bytes) {
undelivered_sdu_info_queue.erase(pdcp_sn);
notify_info_vec.push_back(pdcp_sn);
log->debug("Reporting to PDCP: PDCP SN=%d, nof_bytes=%d\n", pdcp_sn, nof_bytes);
}
}
pdcp_sn = tx_pdu.pdcp_tx_counts[tx_pdu.header.N_li];
nof_bytes = tx_pdu.buf->N_bytes - notified_bytes; // Notify last SDU
undelivered_sdu_info_queue[pdcp_sn].acked_bytes += nof_bytes;
if (undelivered_sdu_info_queue[pdcp_sn].acked_bytes >= undelivered_sdu_info_queue[pdcp_sn].total_bytes) {
undelivered_sdu_info_queue.erase(pdcp_sn);
notify_info_vec.push_back(pdcp_sn);
log->debug("Reporting to PDCP: PDCP SN=%d, nof_bytes=%d\n", pdcp_sn, nof_bytes);
}
}
void rlc_am_lte::rlc_am_lte_tx::debug_state()
{
log->debug("%s vt_a = %d, vt_ms = %d, vt_s = %d, poll_sn = %d\n", RB_NAME, vt_a, vt_ms, vt_s, poll_sn);