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authorRicardo Salveti <ricardo.salveti@linaro.org>2016-07-18 15:30:06 -0300
committerRicardo Salveti <ricardo.salveti@linaro.org>2016-07-18 15:30:30 -0300
commita41e6ff15809d40e0f9bbc9576bf8f7f80fbec1d (patch)
treec9e6fc399c2738e84ed2585e6e51e90f9608ca12 /app/test-pmd/testpmd.c
parent8b25d1ad5d2264bdfc2818c7bda74ee2697df6db (diff)
Imported Upstream version 16.07-rc2
Change-Id: Ie9e8ec528a2a0dace085c5e44aa7fa3b489d4ba0 Signed-off-by: Ricardo Salveti <ricardo.salveti@linaro.org>
Diffstat (limited to 'app/test-pmd/testpmd.c')
-rw-r--r--app/test-pmd/testpmd.c23
1 files changed, 22 insertions, 1 deletions
diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
index 06885ceb..b7f28e96 100644
--- a/app/test-pmd/testpmd.c
+++ b/app/test-pmd/testpmd.c
@@ -272,6 +272,9 @@ uint32_t bypass_timeout = RTE_BYPASS_TMT_OFF;
#endif
+/* default period is 1 second */
+static uint64_t timer_period = 1;
+
/*
* Ethernet device configuration.
*/
@@ -877,17 +880,35 @@ flush_fwd_rx_queues(void)
uint16_t nb_rx;
uint16_t i;
uint8_t j;
+ uint64_t prev_tsc = 0, diff_tsc, cur_tsc, timer_tsc = 0;
+
+ /* convert to number of cycles */
+ timer_period *= rte_get_timer_hz();
for (j = 0; j < 2; j++) {
for (rxp = 0; rxp < cur_fwd_config.nb_fwd_ports; rxp++) {
for (rxq = 0; rxq < nb_rxq; rxq++) {
port_id = fwd_ports_ids[rxp];
+ /**
+ * testpmd can stuck in the below do while loop
+ * if rte_eth_rx_burst() always returns nonzero
+ * packets. So timer is added to exit this loop
+ * after 1sec timer expiry.
+ */
+ prev_tsc = rte_rdtsc();
do {
nb_rx = rte_eth_rx_burst(port_id, rxq,
pkts_burst, MAX_PKT_BURST);
for (i = 0; i < nb_rx; i++)
rte_pktmbuf_free(pkts_burst[i]);
- } while (nb_rx > 0);
+
+ cur_tsc = rte_rdtsc();
+ diff_tsc = cur_tsc - prev_tsc;
+ timer_tsc += diff_tsc;
+ } while ((nb_rx > 0) &&
+ (timer_tsc < timer_period));
+ prev_tsc = cur_tsc;
+ timer_tsc = 0;
}
}
rte_delay_ms(10); /* wait 10 milli-seconds before retrying */