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Fri, 9 Jun 2017 13:16:24 +0000 From: Jerin Jacob To: dev@dpdk.org Cc: hemant.agrawal@nxp.com, gage.eads@intel.com, harry.van.haaren@intel.com, Jerin Jacob , stable@dpdk.org Date: Fri, 9 Jun 2017 18:46:03 +0530 Message-Id: <20170609131603.13483-1-jerin.jacob@caviumnetworks.com> X-Mailer: git-send-email 2.13.1 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [111.93.218.67] X-ClientProxiedBy: BM1PR01CA0114.INDPRD01.PROD.OUTLOOK.COM (10.174.208.30) To CY1PR0701MB1728.namprd07.prod.outlook.com (10.163.21.142) X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CY1PR0701MB1728: X-MS-Office365-Filtering-Correlation-Id: 58d2ae35-a19d-4a15-8133-08d4af39bba0 X-Microsoft-Antispam: UriScan:; BCL:0; PCL:0; RULEID:(22001)(201703131423075)(201703031133081); SRVR:CY1PR0701MB1728; X-Microsoft-Exchange-Diagnostics: 1; CY1PR0701MB1728; 3:yzLq7szUtOxh3p7vxAoi91qAzJQmfnPLW0RbU4OyqSOgGic2UnL5Xfu/MaZd6voJXmg3xz4XLmdMRNvM4OfKiK4msTYfrEbQ49WOg2MJNHqHWsjigkt7Gvf+MZLWkvm1xHiMK+Yy3gJXgr5jt+FTl0yIyZJp6MrOjPXbN9aPUDRhQ1gPVXgaTOAvzkMDUGJCKGN9LG5oAf1Qts8nGt+dc0elGI/4jnO51w1UfADaA61iVCAbp1nv0H/QxsEO40F9qLZlkuADgCTHqhbIsJV+w82gAX6/NiikQAzV5zjXpDmmYiUpnDM1vX5FxFsrLcYuhYJ1UUTYa+aHshUBOB6/MQ==; 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To reflect the write changes issued by the producer lcore on worker lcore, an SMP write barrier is required on producer enqueue. Fixing the missing rte_smp_wmb() on enqueue with RTE_EVENT_OP_NEW. CC: stable@dpdk.org Fixes: f10d322eff76 ("event/octeontx: support worker enqueue") Signed-off-by: Jerin Jacob --- drivers/event/octeontx/ssovf_worker.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/event/octeontx/ssovf_worker.c b/drivers/event/octeontx/ssovf_worker.c index ad3fe684d..74e89015d 100644 --- a/drivers/event/octeontx/ssovf_worker.c +++ b/drivers/event/octeontx/ssovf_worker.c @@ -179,6 +179,7 @@ ssows_enq(void *port, const struct rte_event *ev) switch (ev->op) { case RTE_EVENT_OP_NEW: + rte_smp_wmb(); ssows_new_event(ws, ev); break; case RTE_EVENT_OP_FORWARD: -- 2.13.1