From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from proxy.6wind.com (host.76.145.23.62.rev.coltfrance.com [62.23.145.76]) by dpdk.org (Postfix) with ESMTP id B13922C4B for ; Wed, 6 Apr 2016 15:28:13 +0200 (CEST) Received: from glumotte.dev.6wind.com (unknown [10.16.0.195]) by proxy.6wind.com (Postfix) with ESMTP id E98672817A; Wed, 6 Apr 2016 15:27:30 +0200 (CEST) From: Olivier Matz To: dev@dpdk.org Cc: bruce.richardson@intel.com, pablo.de.lara.guarch@intel.com Date: Wed, 6 Apr 2016 15:28:01 +0200 Message-Id: <1459949281-26562-5-git-send-email-olivier.matz@6wind.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1459949281-26562-1-git-send-email-olivier.matz@6wind.com> References: <1459857229-9814-1-git-send-email-olivier.matz@6wind.com> <1459949281-26562-1-git-send-email-olivier.matz@6wind.com> Subject: [dpdk-dev] [PATCH v4 4/4] autotest: fix func reentrancy X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 06 Apr 2016 13:28:14 -0000 The previous code in func_reentrancy autotest was doing in parallel something close to: name = "common_name"; do several times { obj = allocate_an_object(name) // obj = ring, mempool, hash, lpm, ... if (obj == NULL && lookup(name) == NULL) return TEST_FAIL; } This code is not safe. For instance: mempool_create() is called on core 0, it creates a ring. At the same time on core 1, mempool_create() is called too and the creation of the ring fails (EEXIST). But the mempool lookup can fail on core 1 if the mempool is not added in the list by core 0. This commit fixes the func_reentrancy autotest that now works with all tested class of objects. Fixes: 104a92bd02 ("app: add reentrancy tests") Signed-off-by: Olivier Matz Acked-by: Pablo de Lara --- app/test/test_func_reentrancy.c | 31 +++++++++++++++++++++---------- 1 file changed, 21 insertions(+), 10 deletions(-) diff --git a/app/test/test_func_reentrancy.c b/app/test/test_func_reentrancy.c index 5d09296..300a3bc 100644 --- a/app/test/test_func_reentrancy.c +++ b/app/test/test_func_reentrancy.c @@ -83,6 +83,7 @@ typedef void (*case_clean_t)(unsigned lcore_id); #define MAX_LCORES RTE_MAX_MEMZONE / (MAX_ITER_TIMES * 4U) +static rte_atomic32_t obj_count = RTE_ATOMIC32_INIT(0); static rte_atomic32_t synchro = RTE_ATOMIC32_INIT(0); #define WAIT_SYNCHRO_FOR_SLAVES() do{ \ @@ -100,6 +101,7 @@ test_eal_init_once(__attribute__((unused)) void *arg) WAIT_SYNCHRO_FOR_SLAVES(); + rte_atomic32_set(&obj_count, 1); /* silent the check in the caller */ if (rte_eal_init(0, NULL) != -1) return -1; @@ -122,8 +124,8 @@ ring_create_lookup(__attribute__((unused)) void *arg) /* create the same ring simultaneously on all threads */ for (i = 0; i < MAX_ITER_TIMES; i++) { rp = rte_ring_create("fr_test_once", 4096, SOCKET_ID_ANY, 0); - if ((NULL == rp) && (rte_ring_lookup("fr_test_once") == NULL)) - return -1; + if (rp != NULL) + rte_atomic32_inc(&obj_count); } /* create/lookup new ring several times */ @@ -172,8 +174,8 @@ mempool_create_lookup(__attribute__((unused)) void *arg) NULL, NULL, my_obj_init, NULL, SOCKET_ID_ANY, 0); - if ((NULL == mp) && (rte_mempool_lookup("fr_test_once") == NULL)) - return -1; + if (mp != NULL) + rte_atomic32_inc(&obj_count); } /* create/lookup new ring several times */ @@ -238,8 +240,8 @@ hash_create_free(__attribute__((unused)) void *arg) hash_params.name = "fr_test_once"; for (i = 0; i < MAX_ITER_TIMES; i++) { handle = rte_hash_create(&hash_params); - if ((NULL == handle) && (rte_hash_find_existing("fr_test_once") == NULL)) - return -1; + if (handle != NULL) + rte_atomic32_inc(&obj_count); } /* create mutiple times simultaneously */ @@ -306,8 +308,8 @@ fbk_create_free(__attribute__((unused)) void *arg) fbk_params.name = "fr_test_once"; for (i = 0; i < MAX_ITER_TIMES; i++) { handle = rte_fbk_hash_create(&fbk_params); - if ((NULL == handle) && (rte_fbk_hash_find_existing("fr_test_once") == NULL)) - return -1; + if (handle != NULL) + rte_atomic32_inc(&obj_count); } /* create mutiple fbk tables simultaneously */ @@ -372,8 +374,8 @@ lpm_create_free(__attribute__((unused)) void *arg) /* create the same lpm simultaneously on all threads */ for (i = 0; i < MAX_ITER_TIMES; i++) { lpm = rte_lpm_create("fr_test_once", SOCKET_ID_ANY, &config); - if ((NULL == lpm) && (rte_lpm_find_existing("fr_test_once") == NULL)) - return -1; + if (lpm != NULL) + rte_atomic32_inc(&obj_count); } /* create mutiple fbk tables simultaneously */ @@ -432,10 +434,12 @@ launch_test(struct test_case *pt_case) unsigned lcore_id; unsigned cores_save = rte_lcore_count(); unsigned cores = RTE_MIN(cores_save, MAX_LCORES); + unsigned count; if (pt_case->func == NULL) return -1; + rte_atomic32_set(&obj_count, 0); rte_atomic32_set(&synchro, 0); RTE_LCORE_FOREACH_SLAVE(lcore_id) { @@ -462,6 +466,13 @@ launch_test(struct test_case *pt_case) pt_case->clean(lcore_id); } + count = rte_atomic32_read(&obj_count); + if (count != 1) { + printf("%s: common object allocated %d times (should be 1)\n", + pt_case->name, count); + ret = -1; + } + return ret; } -- 2.1.4