From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by dpdk.org (Postfix) with ESMTP id D14065F38; Mon, 4 Jun 2018 14:55:35 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 04 Jun 2018 05:55:34 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.49,476,1520924400"; d="scan'208";a="64146222" Received: from unknown (HELO localhost.localdomain.localdomain) ([10.224.122.193]) by orsmga002.jf.intel.com with ESMTP; 04 Jun 2018 05:55:33 -0700 From: Nikhil Rao To: jerin.jacob@caviumnetworks.com Cc: dev@dpdk.org, Nikhil Rao , stable@dpdk.org Date: Mon, 4 Jun 2018 18:25:17 +0530 Message-Id: <1528116917-156214-1-git-send-email-nikhil.rao@intel.com> X-Mailer: git-send-email 1.8.3.1 Subject: [dpdk-dev] [PATCH] eventdev: fix Rx SW adapter stop X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 04 Jun 2018 12:55:36 -0000 The Rx adapter stop call does not guarantee that the SW service function will not execute after the rte_event_eth_rx_adapter_stop() call. Add a "started" flag to prevent the adapter from executing if stop has been called. Fixes: 9c38b704d280 ("eventdev: add eth Rx adapter implementation") Signed-off-by: Nikhil Rao CC: stable@dpdk.org --- lib/librte_eventdev/rte_event_eth_rx_adapter.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/lib/librte_eventdev/rte_event_eth_rx_adapter.c b/lib/librte_eventdev/rte_event_eth_rx_adapter.c index d03f870..7b39e39 100644 --- a/lib/librte_eventdev/rte_event_eth_rx_adapter.c +++ b/lib/librte_eventdev/rte_event_eth_rx_adapter.c @@ -91,6 +91,8 @@ struct rte_event_eth_rx_adapter { int socket_id; /* Per adapter EAL service */ uint32_t service_id; + /* Adapter started flag */ + uint8_t rxa_started; } __rte_cache_aligned; /* Per eth device */ @@ -556,6 +558,10 @@ static uint16_t gcd_u16(uint16_t a, uint16_t b) if (rte_spinlock_trylock(&rx_adapter->rx_lock) == 0) return 0; + if (!rx_adapter->rxa_started) { + return 0; + rte_spinlock_unlock(&rx_adapter->rx_lock); + } eth_rx_poll(rx_adapter); rte_spinlock_unlock(&rx_adapter->rx_lock); return 0; @@ -847,8 +853,12 @@ static int add_rx_queue(struct rte_event_eth_rx_adapter *rx_adapter, &rte_eth_devices[i]); } - if (use_service) + if (use_service) { + rte_spinlock_lock(&rx_adapter->rx_lock); + rx_adapter->rxa_started = start; rte_service_runstate_set(rx_adapter->service_id, start); + rte_spinlock_unlock(&rx_adapter->rx_lock); + } return 0; } -- 1.8.3.1