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srsRAN_4G
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Fix issue with new way of managing ul buffers not working with CA

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master
Ismael Gomez 4 years ago
parent f7d97d0d7b
commit e5df35304d
8 changed files with 54 additions and 38 deletions
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4
lib/include/srslte/interfaces/enb_interfaces.h
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@ -177,12 +177,12 @@ public:
*
* @param tti the given TTI
* @param rnti the UE identifier in the eNb
* @param pdu_ptr pointer to the uplink buffer
* @param enb_cc_idx the eNb Cell/Carrier identifier
* @param nof_bytes the number of grants carrierd by the PUSCH message
* @param crc_res the CRC check, set to true if the message was decoded succesfully
* @return SRSLTE_SUCCESS if no error occurs, SRSLTE_ERROR* if an error occurs
*/
virtual int push_pdu(uint32_t tti_rx, uint16_t rnti, const uint8_t* pdu_ptr, uint32_t nof_bytes, bool crc_res) = 0;
virtual int push_pdu(uint32_t tti_rx, uint16_t rnti, uint32_t enb_cc_idx, uint32_t nof_bytes, bool crc_res) = 0;
virtual int get_dl_sched(uint32_t tti, dl_sched_list_t& dl_sched_res) = 0;
virtual int get_mch_sched(uint32_t tti, bool is_mcch, dl_sched_list_t& dl_sched_res) = 0;

4
srsenb/hdr/stack/enb_stack_lte.h
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@ -80,9 +80,9 @@ public:
{
return mac.crc_info(tti, rnti, enb_cc_idx, nof_bytes, crc_res);
}
int push_pdu(uint32_t tti, uint16_t rnti, const uint8_t* pdu_ptr, uint32_t nof_bytes, bool crc_res) final
int push_pdu(uint32_t tti, uint16_t rnti, uint32_t enb_cc_idx, uint32_t nof_bytes, bool crc_res) final
{
return mac.push_pdu(tti, rnti, pdu_ptr, nof_bytes, crc_res);
return mac.push_pdu(tti, rnti, enb_cc_idx, nof_bytes, crc_res);
}
int get_dl_sched(uint32_t tti, dl_sched_list_t& dl_sched_res) final { return mac.get_dl_sched(tti, dl_sched_res); }
int get_mch_sched(uint32_t tti, bool is_mcch, dl_sched_list_t& dl_sched_res) final

2
srsenb/hdr/stack/mac/mac.h
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@ -56,7 +56,7 @@ public:
int ta_info(uint32_t tti, uint16_t rnti, float ta_us) override;
int ack_info(uint32_t tti, uint16_t rnti, uint32_t enb_cc_idx, uint32_t tb_idx, bool ack) override;
int crc_info(uint32_t tti, uint16_t rnti, uint32_t enb_cc_idx, uint32_t nof_bytes, bool crc_res) override;
int push_pdu(uint32_t tti, uint16_t rnti, const uint8_t* pdu_ptr, uint32_t nof_bytes, bool crc_res) override;
int push_pdu(uint32_t tti, uint16_t rnti, uint32_t enb_cc_idx, uint32_t nof_bytes, bool crc_res) override;
int get_dl_sched(uint32_t tti_tx_dl, dl_sched_list_t& dl_sched_res) override;
int get_ul_sched(uint32_t tti_tx_ul, ul_sched_list_t& ul_sched_res) override;

8
srsenb/hdr/stack/mac/ue.h
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@ -72,10 +72,10 @@ public:
srslte_softbuffer_rx_t* get_rx_softbuffer(const uint32_t ue_cc_idx, const uint32_t tti);
bool process_pdus();
uint8_t* request_buffer(uint32_t tti, const uint32_t len);
uint8_t* request_buffer(uint32_t tti, uint32_t ue_cc_idx, const uint32_t len);
void process_pdu(uint8_t* pdu, uint32_t nof_bytes, srslte::pdu_queue::channel_t channel) override;
void push_pdu(uint32_t tti, const uint8_t* pdu_ptr, uint32_t len);
void deallocate_pdu(uint32_t tti, const uint8_t* pdu_ptr);
void push_pdu(uint32_t tti, uint32_t ue_cc_idx, uint32_t len);
void deallocate_pdu(uint32_t tti, uint32_t ue_cc_idx);
void metrics_read(mac_ue_metrics_t* metrics_);
void metrics_rx(bool crc, uint32_t tbs);
@ -124,7 +124,7 @@ private:
tx_payload_buffer;
// Save 2 buffers per HARQ process
srslte::circular_array<uint8_t*, 2 * SRSLTE_FDD_NOF_HARQ> rx_used_buffers;
std::vector<srslte::circular_array<uint8_t*, 2 * SRSLTE_FDD_NOF_HARQ> > rx_used_buffers;
srslte::block_queue<uint32_t> pending_ta_commands;
ta ta_fsm;

2
srsenb/src/phy/lte/cc_worker.cc
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@ -374,7 +374,7 @@ void cc_worker::decode_pusch(stack_interface_phy_lte::ul_sched_grant_t* grants,
// Inform MAC about the CRC result
phy->stack->crc_info(tti_rx, rnti, cc_idx, ul_cfg.pusch.grant.tb.tbs / 8, pusch_res.crc);
// Push PDU buffer
phy->stack->push_pdu(tti_rx, rnti, grants[i].data, ul_cfg.pusch.grant.tb.tbs / 8, pusch_res.crc);
phy->stack->push_pdu(tti_rx, rnti, cc_idx, ul_cfg.pusch.grant.tb.tbs / 8, pusch_res.crc);
// Logging
if (log_h->get_level() >= srslte::LOG_LEVEL_INFO) {
char str[512];

16
srsenb/src/stack/mac/mac.cc
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@ -323,7 +323,7 @@ int mac::crc_info(uint32_t tti_rx, uint16_t rnti, uint32_t enb_cc_idx, uint32_t
return scheduler.ul_crc_info(tti_rx, rnti, enb_cc_idx, crc);
}
int mac::push_pdu(uint32_t tti_rx, uint16_t rnti, const uint8_t* pdu_ptr, uint32_t nof_bytes, bool crc)
int mac::push_pdu(uint32_t tti_rx, uint16_t rnti, uint32_t enb_cc_idx, uint32_t nof_bytes, bool crc)
{
srslte::rwlock_read_guard lock(rwlock);
@ -331,14 +331,21 @@ int mac::push_pdu(uint32_t tti_rx, uint16_t rnti, const uint8_t* pdu_ptr, uint32
return SRSLTE_ERROR;
}
std::array<int, SRSLTE_MAX_CARRIERS> enb_ue_cc_map = scheduler.get_enb_ue_cc_map(rnti);
if (enb_ue_cc_map[enb_cc_idx] < 0) {
Error("User rnti=0x%x is not activated for carrier %d\n", rnti, enb_cc_idx);
return SRSLTE_ERROR;
}
uint32_t ue_cc_idx = enb_ue_cc_map[enb_cc_idx];
// push the pdu through the queue if received correctly
if (crc) {
Info("Pushing PDU rnti=0x%x, tti_rx=%d, nof_bytes=%d\n", rnti, tti_rx, nof_bytes);
ue_db[rnti]->push_pdu(tti_rx, pdu_ptr, nof_bytes);
ue_db[rnti]->push_pdu(tti_rx, ue_cc_idx, nof_bytes);
stack_task_queue.push([this]() { process_pdus(); });
} else {
Debug("Discarting PDU rnti=0x%x, tti_rx=%d, nof_bytes=%d\n", rnti, tti_rx, nof_bytes);
ue_db[rnti]->deallocate_pdu(tti_rx, pdu_ptr);
ue_db[rnti]->deallocate_pdu(tti_rx, ue_cc_idx);
}
return SRSLTE_SUCCESS;
}
@ -906,7 +913,8 @@ int mac::get_ul_sched(uint32_t tti_tx_ul, ul_sched_list_t& ul_sched_res_list)
if (sched_result.pusch[n].current_tx_nb == 0) {
srslte_softbuffer_rx_reset_tbs(phy_ul_sched_res->pusch[n].softbuffer_rx, sched_result.pusch[i].tbs * 8);
}
phy_ul_sched_res->pusch[n].data = ue_db[rnti]->request_buffer(tti_tx_ul, sched_result.pusch[i].tbs);
phy_ul_sched_res->pusch[n].data =
ue_db[rnti]->request_buffer(tti_tx_ul, sched_result.pusch[i].dci.ue_cc_idx, sched_result.pusch[i].tbs);
if (phy_ul_sched_res->pusch[n].data) {
phy_ul_sched_res->nof_grants++;
} else {

54
srsenb/src/stack/mac/ue.cc
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@ -44,6 +44,7 @@ ue::ue(uint16_t rnti_,
pdus(128),
nof_rx_harq_proc(nof_rx_harq_proc_),
nof_tx_harq_proc(nof_tx_harq_proc_),
rx_used_buffers(nof_cells_),
ta_fsm(this)
{
srslte::byte_buffer_pool* pool = srslte::byte_buffer_pool::get_instance();
@ -94,6 +95,15 @@ void ue::reset()
srslte_softbuffer_tx_reset(&buffer);
}
}
for (auto& rx_buffers_cc : rx_used_buffers) {
for (auto& ptr : rx_buffers_cc) {
if (ptr) {
pdus.deallocate(ptr);
ptr = nullptr;
}
}
}
}
/**
@ -161,19 +171,19 @@ ue::get_tx_softbuffer(const uint32_t ue_cc_idx, const uint32_t harq_process, con
return &softbuffer_tx.at(ue_cc_idx).at((harq_process * SRSLTE_MAX_TB + tb_idx) % nof_tx_harq_proc);
}
uint8_t* ue::request_buffer(uint32_t tti, const uint32_t len)
uint8_t* ue::request_buffer(uint32_t tti, uint32_t cc_idx, const uint32_t len)
{
uint8_t* pdu = nullptr;
if (len > 0) {
pdu = pdus.request(len);
if (pdu) {
// Deallocate oldest buffer if we didn't deallocate it
if (rx_used_buffers[tti] != nullptr) {
pdus.deallocate(rx_used_buffers[tti]);
rx_used_buffers[tti] = nullptr;
if (rx_used_buffers.at(cc_idx)[tti] != nullptr) {
pdus.deallocate(rx_used_buffers.at(cc_idx)[tti]);
rx_used_buffers.at(cc_idx)[tti] = nullptr;
log_h->warning("buffers: RX PDU of rnti=0x%x and pid=%d wasn't deallocated\n", rnti, tti % nof_rx_harq_proc);
}
rx_used_buffers[tti] = pdu;
rx_used_buffers.at(cc_idx)[tti] = pdu;
log_h->info("RX PDU saved for pid=%d\n", tti % nof_rx_harq_proc);
} else {
log_h->error("buffers: Requesting buffer from pool\n");
@ -306,35 +316,33 @@ void ue::process_pdu(uint8_t* pdu, uint32_t nof_bytes, srslte::pdu_queue::channe
Debug("MAC PDU processed\n");
}
void ue::deallocate_pdu(uint32_t tti, const uint8_t* pdu_ptr)
void ue::deallocate_pdu(uint32_t tti, uint32_t cc_idx)
{
if (pdu_ptr) {
if (rx_used_buffers[tti] == pdu_ptr) {
rx_used_buffers[tti] = nullptr;
} else {
Warning("buffers: Unexpected RX PDU pointer in deallocate_pdu for rnti=0x%x pid=%d\n", rnti, tti % nof_rx_harq_proc);
}
pdus.deallocate(pdu_ptr);
if (rx_used_buffers.at(cc_idx)[tti] != nullptr) {
pdus.deallocate(rx_used_buffers.at(cc_idx)[tti]);
rx_used_buffers.at(cc_idx)[tti] = nullptr;
} else {
Error("Error deallocating PDU: null ptr\n");
Warning("buffers: Null RX PDU pointer in deallocate_pdu for rnti=0x%x pid=%d cc_idx=%d\n",
rnti,
tti % nof_rx_harq_proc,
cc_idx);
}
}
void ue::push_pdu(uint32_t tti, const uint8_t* pdu_ptr, uint32_t len)
void ue::push_pdu(uint32_t tti, uint32_t cc_idx, uint32_t len)
{
if (pdu_ptr) {
if (rx_used_buffers[tti] == pdu_ptr) {
rx_used_buffers[tti] = nullptr;
} else {
Warning("buffers: Unexpected RX PDU pointer in push_pdu for rnti=0x%x pid=%d\n", rnti, tti % nof_rx_harq_proc);
}
if (rx_used_buffers.at(cc_idx)[tti] != nullptr) {
if (len > 0) {
pdus.push(pdu_ptr, len);
pdus.push(rx_used_buffers.at(cc_idx)[tti], len);
} else {
Error("Error pushing PDU: null length\n");
}
rx_used_buffers.at(cc_idx)[tti] = nullptr;
} else {
Error("Error pushing PDU: null pointer\n");
Warning("buffers: Null RX PDU pointer in push_pdu for rnti=0x%x pid=%d cc_idx=%d\n",
rnti,
tti % nof_rx_harq_proc,
cc_idx);
}
}

2
srsenb/test/phy/enb_phy_test.cc
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@ -493,7 +493,7 @@ public:
return 0;
}
int push_pdu(uint32_t tti, uint16_t rnti, const uint8_t* pdu_ptr, uint32_t nof_bytes, bool crc_res) override
int push_pdu(uint32_t tti, uint16_t rnti, uint32_t cc_idx, uint32_t nof_bytes, bool crc_res) override
{
log_h.info("Received push_pdu tti=%d; rnti=0x%x; ack=%d;\n", tti, rnti, crc_res);
notify_push_pdu();

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