*
*******************************************************************************/
-
/**
* @brief This file provides implementation to Timing for XRAN.
*
#include "xran_timer.h"
#include "xran_printf.h"
-#ifndef MLOG_ENABLED
-#include "mlog_lnx_xRAN.h"
-#else
-#include "mlog_lnx.h"
-#endif
+#include "xran_mlog_lnx.h"
#include "xran_lib_mlog_tasks_id.h"
#include "ethdi.h"
+#include "xran_fh_o_du.h"
+#include "xran_common.h"
#define NSEC_PER_SEC 1000000000L
#define NSEC_PER_USEC 1000L
#define THRESHOLD 35 /**< the avg cost of clock_gettime() in ns */
#define TIMECOMPENSATION 2 /**< time compensation in us, avg latency of clock_nanosleep */
-#define SEC_MOD_STOP (30)
+#define SEC_MOD_STOP (60)
static struct timespec started_time;
static struct timespec last_time;
static struct timespec cur_time;
+static uint64_t curr_tick;
+static uint64_t last_tick;
+
static struct timespec* p_cur_time = &cur_time;
static struct timespec* p_last_time = &last_time;
+
static struct timespec* p_temp_time;
+static struct timespec sleeptime = {.tv_nsec = 1E3 }; /* 1 us */
+
static unsigned long current_second = 0;
static unsigned long started_second = 0;
+static uint8_t numerlogy = 0;
extern uint32_t xran_lib_ota_sym;
extern uint32_t xran_lib_ota_tti;
extern uint32_t xran_lib_ota_sym_idx;
static int debugStop = 0;
+static int debugStopCount = 0;
+
+static long fine_tuning[5][2] =
+{
+ {71428L, 71429L}, /* mu = 0 */
+ {35714L, 35715L}, /* mu = 1 */
+ {0, 0}, /* mu = 2 not supported */
+ {8928L, 8929L}, /* mu = 3 */
+ {0,0 } /* mu = 4 not supported */
+};
+
+static uint8_t slots_per_subframe[4] =
+{
+ 1, /* mu = 0 */
+ 2, /* mu = 1 */
+ 4, /* mu = 2 */
+ 8, /* mu = 3 */
+};
uint64_t timing_get_current_second(void)
{
return current_second;
}
-int timing_set_debug_stop(int value)
+int timing_set_numerology(uint8_t value)
+{
+ numerlogy = value;
+ return numerlogy;
+}
+
+int timing_set_debug_stop(int value, int count)
{
debugStop = value;
+ debugStopCount = count;
if(debugStop){
clock_gettime(CLOCK_REALTIME, &started_time);
return debugStop;
}
-long poll_next_tick(long interval_ns)
+void timing_adjust_gps_second(struct timespec* p_time)
+{
+ struct xran_device_ctx * p_xran_dev_ctx = xran_dev_get_ctx();
+
+ if (p_time->tv_nsec >= p_xran_dev_ctx->offset_nsec)
+ {
+ p_time->tv_nsec -= p_xran_dev_ctx->offset_nsec;
+ p_time->tv_sec -= p_xran_dev_ctx->offset_sec;
+ }
+ else
+ {
+ p_time->tv_nsec += 1e9 - p_xran_dev_ctx->offset_nsec;
+ p_time->tv_sec -= p_xran_dev_ctx->offset_sec + 1;
+ }
+
+ return;
+}
+uint64_t xran_tick(void)
{
+ uint32_t hi, lo;
+ __asm volatile ("rdtsc" : "=a"(lo), "=d"(hi));
+ return ( (uint64_t)lo)|( ((uint64_t)hi)<<32 );
+}
+
+unsigned long get_ticks_diff(unsigned long curr_tick, unsigned long last_tick)
+{
+ if (curr_tick >= last_tick)
+ return (unsigned long)(curr_tick - last_tick);
+ else
+ return (unsigned long)(0xFFFFFFFFFFFFFFFF - last_tick + curr_tick);
+}
+
+long poll_next_tick(long interval_ns, unsigned long *used_tick)
+{
+ struct xran_device_ctx * p_xran_dev_ctx = xran_dev_get_ctx();
+ struct xran_common_counters* pCnt = &p_xran_dev_ctx->fh_counters;
+
long target_time;
long delta;
static int counter = 0;
static long sym_acc = 0;
static long sym_cnt = 0;
- if(counter){
+ if(counter == 0) {
clock_gettime(CLOCK_REALTIME, p_last_time);
+ last_tick = MLogTick();
+ if(unlikely(p_xran_dev_ctx->offset_sec || p_xran_dev_ctx->offset_nsec))
+ timing_adjust_gps_second(p_last_time);
current_second = p_last_time->tv_sec;
counter = 1;
}
target_time = (p_last_time->tv_sec * NSEC_PER_SEC + p_last_time->tv_nsec + interval_ns);
- while(1)
- {
+ while(1) {
clock_gettime(CLOCK_REALTIME, p_cur_time);
+ curr_tick = MLogTick();
+ if(unlikely(p_xran_dev_ctx->offset_sec || p_xran_dev_ctx->offset_nsec))
+ timing_adjust_gps_second(p_cur_time);
delta = (p_cur_time->tv_sec * NSEC_PER_SEC + p_cur_time->tv_nsec) - target_time;
if(delta > 0 || (delta < 0 && abs(delta) < THRESHOLD)) {
+ if (debugStop &&(debugStopCount > 0) && (pCnt->tx_counter >= debugStopCount)){
+ uint64_t t1;
+ printf("STOP:[%ld.%09ld], debugStopCount %d, tx_counter %ld\n", p_cur_time->tv_sec, p_cur_time->tv_nsec, debugStopCount, pCnt->tx_counter);
+ t1 = MLogTick();
+ rte_pause();
+ MLogTask(PID_TIME_SYSTIME_STOP, t1, MLogTick());
+ xran_if_current_state = XRAN_STOPPED;
+ }
if(current_second != p_cur_time->tv_sec){
current_second = p_cur_time->tv_sec;
+ xran_updateSfnSecStart();
xran_lib_ota_sym_idx = 0;
xran_lib_ota_tti = 0;
xran_lib_ota_sym = 0;
}
p_cur_time->tv_nsec = 0; // adjust to 1pps
} else {
- xran_lib_ota_sym_idx = XranIncrementSymIdx(xran_lib_ota_sym_idx, 14*8);
+ xran_lib_ota_sym_idx = XranIncrementSymIdx(xran_lib_ota_sym_idx, XRAN_NUM_OF_SYMBOL_PER_SLOT*slots_per_subframe[numerlogy]);
/* adjust to sym boundary */
if(sym_cnt & 1)
- sym_acc += 8928L;
+ sym_acc += fine_tuning[numerlogy][0];
else
- sym_acc += 8929L;
+ sym_acc += fine_tuning[numerlogy][1];
/* fine tune to second boundary */
if(sym_cnt % 13 == 0)
sym_acc += 1;
p_cur_time->tv_nsec = sym_acc;
sym_cnt++;
}
+
+#ifdef USE_PTP_TIME
if(debugStop && delta < interval_ns*10)
MLogTask(PID_TIME_SYSTIME_POLL, (p_last_time->tv_sec * NSEC_PER_SEC + p_last_time->tv_nsec), (p_cur_time->tv_sec * NSEC_PER_SEC + p_cur_time->tv_nsec));
+#else
+ MLogTask(PID_TIME_SYSTIME_POLL, last_tick, curr_tick);
+ last_tick = curr_tick;
+#endif
+
+
p_temp_time = p_last_time;
p_last_time = p_cur_time;
p_cur_time = p_temp_time;
break;
+ } else {
+ if( likely(xran_if_current_state == XRAN_RUNNING)){
+ uint64_t t1, t2;
+ t1 = xran_tick();
+
+ if(p_xran_dev_ctx->fh_init.io_cfg.pkt_proc_core == 0)
+ ring_processing_func();
+
+ process_dpdk_io();
+
+ /* work around for some kernel */
+ if(p_xran_dev_ctx->fh_init.io_cfg.io_sleep)
+ nanosleep(&sleeptime,NULL);
+
+ t2 = xran_tick();
+ *used_tick += get_ticks_diff(t2, t1);
+ }
+
}
}
Code Review / o-du / phy.git / blobdiff