[PATCH] app/testpmd: handle IEEE1588 init fail

[Dengdui Huang]

When the port's timestamping function failed to initialize
(for example, the device does not support PTP), the packets
received by the hardware do not contain the timestamp.
In this case, IEEE1588 packet forwarding should not start.
This patch fix it.

Plus, adding a failure message when failed to disable PTP.

Fixes: a78040c990cb ("app/testpmd: update forward engine beginning")
Cc: stable at dpdk.org

Signed-off-by: Dengdui Huang <huangdengdui at huawei.com>
---
 app/test-pmd/ieee1588fwd.c | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/app/test-pmd/ieee1588fwd.c b/app/test-pmd/ieee1588fwd.c
index 3371771751..afea7735c7 100644
--- a/app/test-pmd/ieee1588fwd.c
+++ b/app/test-pmd/ieee1588fwd.c
@@ -197,14 +197,23 @@ ieee1588_packet_fwd(struct fwd_stream *fs)
 static int
 port_ieee1588_fwd_begin(portid_t pi)
 {
-	rte_eth_timesync_enable(pi);
-	return 0;
+	int ret;
+
+	ret = rte_eth_timesync_enable(pi);
+	if (ret)
+		printf("Port %u enable PTP failed, ret = %d\n", pi, ret);
+
+	return ret;
 }
 
 static void
 port_ieee1588_fwd_end(portid_t pi)
 {
-	rte_eth_timesync_disable(pi);
+	int ret;
+
+	ret = rte_eth_timesync_disable(pi);
+	if (ret)
+		printf("Port %u disable PTP failed, ret = %d\n", pi, ret);
 }
 
 static void
-- 
2.33.0