[dpdk-dev] [PATCH v3] app/eventdev: use proper teardown sequence
Pavan Nikhilesh
pbhagavatula at caviumnetworks.com
Tue Jul 24 13:01:32 CEST 2018
Use proper teardown sequence when SIGINT is caught to prevent
eventdev from going into undefined state.
Signed-off-by: Pavan Nikhilesh <pbhagavatula at caviumnetworks.com>
---
v3 Changes:
- Segregate ethdev_stop and close to prevent possible SEGFAULT.
- handle early shutdown.
v2 Changes:
- Only stopping the ethdev(producer) is sufficient.(Jerin)
app/test-eventdev/evt_main.c | 40 +++++++++++++++---------
app/test-eventdev/test_perf_common.c | 1 -
app/test-eventdev/test_pipeline_common.c | 1 -
3 files changed, 25 insertions(+), 17 deletions(-)
diff --git a/app/test-eventdev/evt_main.c b/app/test-eventdev/evt_main.c
index 57bb94570..0d5028c17 100644
--- a/app/test-eventdev/evt_main.c
+++ b/app/test-eventdev/evt_main.c
@@ -20,29 +20,39 @@ struct evt_test *test;
static void
signal_handler(int signum)
{
- if (signum == SIGINT || signum == SIGTERM) {
+ int i;
+ static uint8_t once;
+
+ if ((signum == SIGINT || signum == SIGTERM) && !once) {
+ once = true;
printf("\nSignal %d received, preparing to exit...\n",
signum);
- /* request all lcores to exit from the main loop */
- *(int *)test->test_priv = true;
- rte_wmb();
- rte_eal_mp_wait_lcore();
+ if (test != NULL) {
+ /* request all lcores to exit from the main loop */
+ *(int *)test->test_priv = true;
+ rte_wmb();
+
+ if (test->ops.ethdev_destroy)
+ test->ops.ethdev_destroy(test, &opt);
- if (test->ops.test_result)
- test->ops.test_result(test, &opt);
+ rte_eal_mp_wait_lcore();
- if (test->ops.eventdev_destroy)
- test->ops.eventdev_destroy(test, &opt);
+ if (test->ops.test_result)
+ test->ops.test_result(test, &opt);
- if (test->ops.ethdev_destroy)
- test->ops.ethdev_destroy(test, &opt);
+ RTE_ETH_FOREACH_DEV(i)
+ rte_eth_dev_close(i);
- if (test->ops.mempool_destroy)
- test->ops.mempool_destroy(test, &opt);
+ if (test->ops.eventdev_destroy)
+ test->ops.eventdev_destroy(test, &opt);
- if (test->ops.test_destroy)
- test->ops.test_destroy(test, &opt);
+ if (test->ops.mempool_destroy)
+ test->ops.mempool_destroy(test, &opt);
+
+ if (test->ops.test_destroy)
+ test->ops.test_destroy(test, &opt);
+ }
/* exit with the expected status */
signal(signum, SIG_DFL);
diff --git a/app/test-eventdev/test_perf_common.c b/app/test-eventdev/test_perf_common.c
index d00f91802..6d39f98e0 100644
--- a/app/test-eventdev/test_perf_common.c
+++ b/app/test-eventdev/test_perf_common.c
@@ -743,7 +743,6 @@ void perf_ethdev_destroy(struct evt_test *test, struct evt_options *opt)
RTE_ETH_FOREACH_DEV(i) {
rte_event_eth_rx_adapter_stop(i);
rte_eth_dev_stop(i);
- rte_eth_dev_close(i);
}
}
}
diff --git a/app/test-eventdev/test_pipeline_common.c b/app/test-eventdev/test_pipeline_common.c
index 719518ff3..96e7c9882 100644
--- a/app/test-eventdev/test_pipeline_common.c
+++ b/app/test-eventdev/test_pipeline_common.c
@@ -467,7 +467,6 @@ pipeline_ethdev_destroy(struct evt_test *test, struct evt_options *opt)
RTE_ETH_FOREACH_DEV(i) {
rte_event_eth_rx_adapter_stop(i);
rte_eth_dev_stop(i);
- rte_eth_dev_close(i);
}
}
--
2.18.0
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