From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 59972A1DEC for ; Mon, 2 Sep 2019 14:40:19 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 142DF1D446; Mon, 2 Sep 2019 14:40:18 +0200 (CEST) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by dpdk.org (Postfix) with ESMTP id C0FF61D168 for ; Mon, 2 Sep 2019 14:40:15 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 02 Sep 2019 05:40:14 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,459,1559545200"; d="scan'208";a="176311260" Received: from fyigit-mobl.ger.corp.intel.com (HELO [10.237.221.4]) ([10.237.221.4]) by orsmga008.jf.intel.com with ESMTP; 02 Sep 2019 05:40:12 -0700 To: Andrew Rybchenko , Wenzhuo Lu , Jingjing Wu , Bernard Iremonger , Adrien Mazarguil Cc: dev@dpdk.org, Ivan Ilchenko References: <1566915962-5472-1-git-send-email-arybchenko@solarflare.com> <1566915962-5472-3-git-send-email-arybchenko@solarflare.com> From: Ferruh Yigit Openpgp: preference=signencrypt Autocrypt: addr=ferruh.yigit@intel.com; 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WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <1566915962-5472-3-git-send-email-arybchenko@solarflare.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Subject: Re: [dpdk-dev] [PATCH 02/51] app/testpmd: check status of getting ethdev info 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" On 8/27/2019 3:25 PM, Andrew Rybchenko wrote: > From: Ivan Ilchenko > > Add eth_dev_info_get_print_err() which is a wrapper for > rte_eth_dev_info_get() printing error if rte_eth_dev_info_get() > fails and returning its status code. > > Signed-off-by: Ivan Ilchenko > Signed-off-by: Andrew Rybchenko <...> > @@ -2410,9 +2414,13 @@ struct cmd_config_rss_hash_key { > struct rte_eth_dev_info dev_info; > uint8_t hash_key_size; > uint32_t key_len; > + int ret; > > memset(&dev_info, 0, sizeof(dev_info)); It should be in different most probably, but the 'memset' before 'rte_eth_dev_info_get()' looks redundant, since API does the same. <...> > @@ -4746,7 +4780,8 @@ struct cmd_tunnel_tso_set_result { > { > struct rte_eth_dev_info dev_info; > > - rte_eth_dev_info_get(port_id, &dev_info); > + eth_dev_info_get_print_err(port_id, &dev_info); Should we check the return value here too? And return 'dev_info' immediately on error instead of going on. <...> > @@ -1136,7 +1139,10 @@ struct extmem_param { > /* Apply default TxRx configuration for all ports */ > port->dev_conf.txmode = tx_mode; > port->dev_conf.rxmode = rx_mode; > - rte_eth_dev_info_get(pid, &port->dev_info); > + > + ret = eth_dev_info_get_print_err(pid, &port->dev_info); > + if (ret != 0) > + return; What do you think 'rte_exit()' here instead of 'return', 'init_config()' doesn't return error, and returning from init will assume everyting setup, 0 number of queues for any port eventually will cause an exit in the app, better to fail where error occurs.