From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yongseok Koh Subject: [PATCH v2 1/4] net/mlx5: fix memory event on secondary process Date: Mon, 25 Mar 2019 12:15:42 -0700 Message-ID: <20190325191545.20707-2-yskoh@mellanox.com> References: <20190307073314.18324-1-yskoh@mellanox.com> <20190325191545.20707-1-yskoh@mellanox.com> Cc: dev@dpdk.org, stable@dpdk.org To: shahafs@mellanox.com Return-path: Received: from mellanox.co.il (mail-il-dmz.mellanox.com [193.47.165.129]) by dpdk.org (Postfix) with ESMTP id 2704B34F3 for ; Mon, 25 Mar 2019 20:15:56 +0100 (CET) In-Reply-To: <20190325191545.20707-1-yskoh@mellanox.com> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" As the memory event is propagated to secondary processes, the event is processed redundantly. This should be processed once because the data structure used for MR and the event is global across the processes. Fixes: 974f1e7ef146 ("net/mlx5: add new memory region support") Cc: stable@dpdk.org Signed-off-by: Yongseok Koh --- drivers/net/mlx5/mlx5.c | 5 +++-- drivers/net/mlx5/mlx5_mr.c | 2 ++ 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c index ae4b71695e..dd29eba955 100644 --- a/drivers/net/mlx5/mlx5.c +++ b/drivers/net/mlx5/mlx5.c @@ -157,9 +157,10 @@ mlx5_prepare_shared_data(void) if (rte_eal_process_type() == RTE_PROC_PRIMARY) { LIST_INIT(&mlx5_shared_data->mem_event_cb_list); rte_rwlock_init(&mlx5_shared_data->mem_event_rwlock); + rte_mem_event_callback_register("MLX5_MEM_EVENT_CB", + mlx5_mr_mem_event_cb, + NULL); } - rte_mem_event_callback_register("MLX5_MEM_EVENT_CB", - mlx5_mr_mem_event_cb, NULL); } rte_spinlock_unlock(&mlx5_shared_data_lock); } diff --git a/drivers/net/mlx5/mlx5_mr.c b/drivers/net/mlx5/mlx5_mr.c index 700d83d1bc..d336a77e40 100644 --- a/drivers/net/mlx5/mlx5_mr.c +++ b/drivers/net/mlx5/mlx5_mr.c @@ -891,6 +891,8 @@ mlx5_mr_mem_event_cb(enum rte_mem_event event_type, const void *addr, struct mlx5_priv *priv; struct mlx5_dev_list *dev_list = &mlx5_shared_data->mem_event_cb_list; + /* Must be called from the primary process. */ + assert(rte_eal_process_type() == RTE_PROC_PRIMARY); switch (event_type) { case RTE_MEM_EVENT_FREE: rte_rwlock_write_lock(&mlx5_shared_data->mem_event_rwlock); -- 2.11.0