static int schedule_loop(odp_queue_t *out_queue, uint64_t wait,
odp_event_t out_ev[],
unsigned int max_num, unsigned int max_deq)
{
uint64_t start_cycle, cycle, diff;
int ret;
start_cycle = 0;
while (1) {
ret = schedule(out_queue, out_ev, max_num, max_deq);
if (ret)
break;
if (wait == ODP_SCHED_WAIT)
continue;
if (wait == ODP_SCHED_NO_WAIT)
break;
if (start_cycle == 0) {
start_cycle = odp_time_cycles();
continue;
}
cycle = odp_time_cycles();
diff = odp_time_diff_cycles(start_cycle, cycle);
if (wait < diff)
break;
}
return ret;
}
/*
* Main packet transmit routine. Transmit packets at a fixed rate for
* specified length of time.
*/
static void *run_thread_tx(void *arg)
{
test_globals_t *globals;
int thr_id;
odp_queue_t outq;
pkt_tx_stats_t *stats;
uint64_t next_tx_cycles, end_cycles, cur_cycles;
uint64_t burst_gap_cycles;
uint32_t batch_len;
int unsent_pkts = 0;
odp_event_t tx_event[BATCH_LEN_MAX];
uint64_t idle_start = 0;
thread_args_t *targs = arg;
batch_len = targs->batch_len;
if (batch_len > BATCH_LEN_MAX)
batch_len = BATCH_LEN_MAX;
thr_id = odp_thread_id();
globals = odp_shm_addr(odp_shm_lookup("test_globals"));
stats = &globals->tx_stats[thr_id];
outq = odp_pktio_outq_getdef(globals->pktio_tx);
if (outq == ODP_QUEUE_INVALID)
LOG_ABORT("Failed to get output queue for thread %d\n", thr_id);
burst_gap_cycles = odp_time_ns_to_cycles(
(ODP_TIME_SEC * 999) / (1000 * targs->pps / (targs->batch_len)));
odp_barrier_wait(&globals->tx_barrier);
cur_cycles = odp_time_cycles();
next_tx_cycles = cur_cycles;
end_cycles = cur_cycles +
odp_time_ns_to_cycles(targs->duration * ODP_TIME_SEC);
while (cur_cycles < end_cycles) {
unsigned alloc_cnt = 0, tx_cnt;
if (cur_cycles < next_tx_cycles) {
cur_cycles = odp_time_cycles();
if (idle_start == 0)
idle_start = cur_cycles;
continue;
}
if (idle_start) {
stats->s.idle_cycles += odp_time_diff_cycles(
idle_start, cur_cycles);
idle_start = 0;
}
next_tx_cycles += burst_gap_cycles;
alloc_cnt = alloc_packets(tx_event, batch_len - unsent_pkts);
if (alloc_cnt != batch_len)
stats->s.alloc_failures++;
tx_cnt = send_packets(outq, tx_event, alloc_cnt);
unsent_pkts = alloc_cnt - tx_cnt;
stats->s.enq_failures += unsent_pkts;
stats->s.tx_cnt += tx_cnt;
cur_cycles = odp_time_cycles();
}
VPRINT(" %02d: TxPkts %-8"PRIu64" EnqFail %-6"PRIu64
" AllocFail %-6"PRIu64" Idle %"PRIu64"ms\n",
thr_id, stats->s.tx_cnt,
stats->s.enq_failures, stats->s.alloc_failures,
odp_time_cycles_to_ns(stats->s.idle_cycles)/1000/1000);
return NULL;
}
