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 E1E1AA0096 for ; Wed, 10 Apr 2019 00:59:44 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 96EBA4F9A; Wed, 10 Apr 2019 00:59:44 +0200 (CEST) Received: from mellanox.co.il (mail-il-dmz.mellanox.com [193.47.165.129]) by dpdk.org (Postfix) with ESMTP id 5784B4F9A for ; Wed, 10 Apr 2019 00:59:42 +0200 (CEST) Received: from Internal Mail-Server by MTLPINE1 (envelope-from yskoh@mellanox.com) with ESMTPS (AES256-SHA encrypted); 10 Apr 2019 01:59:41 +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 x39Mxd3a004660; Wed, 10 Apr 2019 01:59:40 +0300 From: Yongseok Koh To: anatoly.burakov@intel.com Cc: dev@dpdk.org, stable@dpdk.org Date: Tue, 9 Apr 2019 15:59:37 -0700 Message-Id: <20190409225937.9269-1-yskoh@mellanox.com> X-Mailer: git-send-email 2.11.0 Subject: [dpdk-stable] [PATCH] examples/multi_process: fix buffer underrun X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: stable-bounces@dpdk.org Sender: "stable" For client_server_mp, the total number of buffers for the mbuf mempool should be correctly calculated. Otherwise, having more clients will stop traffic. Fixes: af75078fece3 ("first public release") Cc: stable@dpdk.org Signed-off-by: Yongseok Koh --- examples/multi_process/client_server_mp/mp_server/init.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/examples/multi_process/client_server_mp/mp_server/init.c b/examples/multi_process/client_server_mp/mp_server/init.c index 30c8e44bc0..0491ba8a1a 100644 --- a/examples/multi_process/client_server_mp/mp_server/init.c +++ b/examples/multi_process/client_server_mp/mp_server/init.c @@ -37,8 +37,6 @@ #include "args.h" #include "init.h" -#define MBUFS_PER_CLIENT 1536 -#define MBUFS_PER_PORT 1536 #define MBUF_CACHE_SIZE 512 #define RTE_MP_RX_DESC_DEFAULT 1024 @@ -63,8 +61,12 @@ struct port_info *ports; static int init_mbuf_pools(void) { - const unsigned num_mbufs = (num_clients * MBUFS_PER_CLIENT) \ - + (ports->num_ports * MBUFS_PER_PORT); + const unsigned int num_mbufs = + RTE_MP_RX_DESC_DEFAULT * ports->num_ports + /* Sever */ + num_clients * + (CLIENT_QUEUE_RINGSIZE + + RTE_MP_TX_DESC_DEFAULT * ports->num_ports) + /* Clients */ + (num_clients + 1) * MBUF_CACHE_SIZE; /* Mempool cache */ /* don't pass single-producer/single-consumer flags to mbuf create as it * seems faster to use a cache instead */ -- 2.11.0