[dpdk-dev] [PATCH v3] examples/flow_filtering: add delay during updating link status
Beilei Xing
beilei.xing at intel.com
Wed Jan 24 11:15:34 CET 2018
Add up to 9s delay for getting link status to make sure NIC updates
link status successfully, just like other applications such as
testpmd and l2fwd.
Signed-off-by: Beilei Xing <beilei.xing at intel.com>
---
v3 changes:
- Modify MAX_REPEAT_TIME with MAX_REPEAT_TIMES
v2 changes:
- Add rte_delay_ms(CHECK_INTERVAL) which is missed in v1.
examples/flow_filtering/main.c | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/examples/flow_filtering/main.c b/examples/flow_filtering/main.c
index 4a07b63..d16a0a5 100644
--- a/examples/flow_filtering/main.c
+++ b/examples/flow_filtering/main.c
@@ -55,6 +55,7 @@
#include <rte_mbuf.h>
#include <rte_net.h>
#include <rte_flow.h>
+#include <rte_cycles.h>
static volatile bool force_quit;
@@ -119,13 +120,23 @@ main_loop(void)
rte_eth_dev_close(port_id);
}
+#define CHECK_INTERVAL 1000 /* 100ms */
+#define MAX_REPEAT_TIMES 90 /* 9s (90 * 100ms) in total */
+
static void
assert_link_status(void)
{
struct rte_eth_link link;
+ uint8_t rep_cnt = MAX_REPEAT_TIMES;
memset(&link, 0, sizeof(link));
- rte_eth_link_get(port_id, &link);
+ do {
+ rte_eth_link_get(port_id, &link);
+ if (link.link_status == ETH_LINK_UP)
+ break;
+ rte_delay_ms(CHECK_INTERVAL);
+ } while (--rep_cnt);
+
if (link.link_status == ETH_LINK_DOWN)
rte_exit(EXIT_FAILURE, ":: error: link is still down\n");
}
--
2.5.5
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