From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by dpdk.space (Postfix) with ESMTP id 7B410A0679 for ; Mon, 1 Apr 2019 23:13:16 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id F03044C8E; Mon, 1 Apr 2019 23:13:09 +0200 (CEST) Received: from mellanox.co.il (mail-il-dmz.mellanox.com [193.47.165.129]) by dpdk.org (Postfix) with ESMTP id 175C834F3 for ; Mon, 1 Apr 2019 23:13:05 +0200 (CEST) Received: from Internal Mail-Server by MTLPINE1 (envelope-from yskoh@mellanox.com) with ESMTPS (AES256-SHA encrypted); 2 Apr 2019 00:13:02 +0300 Received: from scfae-sc-2.mti.labs.mlnx (scfae-sc-2.mti.labs.mlnx [10.101.0.96]) by labmailer.mlnx (8.13.8/8.13.8) with ESMTP id x31LCxh5022541; Tue, 2 Apr 2019 00:13:01 +0300 From: Yongseok Koh To: shahafs@mellanox.com Cc: dev@dpdk.org, stable@dpdk.org Date: Mon, 1 Apr 2019 14:12:53 -0700 Message-Id: <20190401211256.25930-2-yskoh@mellanox.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20190401211256.25930-1-yskoh@mellanox.com> References: <20190307073314.18324-1-yskoh@mellanox.com> <20190401211256.25930-1-yskoh@mellanox.com> Subject: [dpdk-dev] [PATCH v3 1/4] net/mlx5: fix memory event on secondary process 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: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Content-Type: text/plain; charset="UTF-8" Message-ID: <20190401211253.D9i4LPnEYccCGWSr_4ukr0y3an8C2rCddJmNo0pGjcg@z> 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 Acked-by: Shahaf Shuler --- 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 1d7ca615bd..2208cc922a 100644 --- a/drivers/net/mlx5/mlx5.c +++ b/drivers/net/mlx5/mlx5.c @@ -322,9 +322,10 @@ 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 0f0a64f0a4..88484dd50b 100644 --- a/drivers/net/mlx5/mlx5_mr.c +++ b/drivers/net/mlx5/mlx5_mr.c @@ -892,6 +892,8 @@ 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