[v8,09/17] test/distributor: collect return mbufs
diff mbox series

Message ID 20201017030701.16134-10-l.wojciechow@partner.samsung.com
State Accepted
Delegated to: David Marchand
Headers show
Series
  • fix distributor synchronization issues
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Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Lukasz Wojciechowski Oct. 17, 2020, 3:06 a.m. UTC
During quit_workers function distributor's main core processes
some packets to wake up pending worker cores so they can quit.
As quit_workers acts also as a cleanup procedure for next test
case it should also collect these packets returned by workers'
handlers, so the cyclic buffer with returned packets
in distributor remains empty.

Fixes: c3eabff124e6 ("distributor: add unit tests")
Cc: bruce.richardson@intel.com
Fixes: c0de0eb82e40 ("distributor: switch over to new API")
Cc: david.hunt@intel.com
Cc: stable@dpdk.org

Signed-off-by: Lukasz Wojciechowski <l.wojciechow@partner.samsung.com>
Acked-by: David Hunt <david.hunt@intel.com>
---
 app/test/test_distributor.c | 5 +++++
 1 file changed, 5 insertions(+)

Patch
diff mbox series

diff --git a/app/test/test_distributor.c b/app/test/test_distributor.c
index 4343efed1..3f0aeb7b9 100644
--- a/app/test/test_distributor.c
+++ b/app/test/test_distributor.c
@@ -591,6 +591,7 @@  quit_workers(struct worker_params *wp, struct rte_mempool *p)
 	const unsigned num_workers = rte_lcore_count() - 1;
 	unsigned i;
 	struct rte_mbuf *bufs[RTE_MAX_LCORE];
+	struct rte_mbuf *returns[RTE_MAX_LCORE];
 	if (rte_mempool_get_bulk(p, (void *)bufs, num_workers) != 0) {
 		printf("line %d: Error getting mbufs from pool\n", __LINE__);
 		return;
@@ -606,6 +607,10 @@  quit_workers(struct worker_params *wp, struct rte_mempool *p)
 	rte_distributor_flush(d);
 	rte_eal_mp_wait_lcore();
 
+	while (rte_distributor_returned_pkts(d, returns, RTE_MAX_LCORE))
+		;
+
+	rte_distributor_clear_returns(d);
 	rte_mempool_put_bulk(p, (void *)bufs, num_workers);
 
 	quit = 0;