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lib,rlc_am_nr: fix processing of ACKs

This commit is contained in:
Pedro Alvarez 2021-11-19 17:09:26 +00:00
parent b794593469
commit 5eaa56e6ba
1 changed files with 15 additions and 11 deletions
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26
lib/src/rlc/rlc_am_nr.cc
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@ -239,19 +239,23 @@ void rlc_am_nr_tx::handle_control_pdu(uint8_t* payload, uint32_t nof_bytes)
*/
// Process ACKs
uint32_t stop_sn = status.N_nack == 0
? st.tx_next
: status.nacks[0].nack_sn; // Stop processing ACKs at the first NACK, if it exists.
if (status.ack_sn >= st.tx_next_ack) {
for (uint32_t sn = st.tx_next_ack; sn < stop_sn; sn++) {
if (tx_window.has_sn(sn)) {
tx_window.remove_pdu(sn);
st.tx_next_ack = sn + 1;
} else {
logger->error("Missing ACKed SN from TX window");
break;
}
? status.ack_sn
: status.nacks[0].nack_sn - 1; // Stop processing ACKs at the first NACK, if it exists.
if (stop_sn > st.tx_next) {
logger->error("Rx'ed ACK or NACK larger than TX_NEXT. Ignoring status report");
return;
}
for (uint32_t sn = st.tx_next_ack; sn < stop_sn; sn++) {
if (tx_window.has_sn(sn)) {
tx_window.remove_pdu(sn);
st.tx_next_ack = sn + 1;
// TODO notify PDCP
} else {
logger->error("Missing ACKed SN from TX window");
break;
}
}
// Process N_acks
for (uint32_t nack_idx = 0; nack_idx < status.N_nack; nack_idx++) {
if (st.tx_next_ack <= status.nacks[nack_idx].nack_sn && status.nacks[nack_idx].nack_sn <= st.tx_next) {