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 6BB33A0679 for ; Thu, 28 Mar 2019 17:41:17 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 311351B3B6; Thu, 28 Mar 2019 17:41:17 +0100 (CET) Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by dpdk.org (Postfix) with ESMTP id 0CA561B3B5 for ; Thu, 28 Mar 2019 17:41:14 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 28 Mar 2019 09:41:02 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,280,1549958400"; d="scan'208";a="138071444" Received: from fyigit-mobl.ger.corp.intel.com (HELO [10.237.221.46]) ([10.237.221.46]) by orsmga003.jf.intel.com with ESMTP; 28 Mar 2019 09:41:02 -0700 From: Ferruh Yigit To: Ian Stokes , dev@dpdk.org Cc: stephen@networkplumber.org References: <1553259678-4515-1-git-send-email-ian.stokes@intel.com> <1553259678-4515-8-git-send-email-ian.stokes@intel.com> <6aa38aa8-5bb3-fee1-0449-c1cc11115a67@intel.com> Openpgp: preference=signencrypt Autocrypt: addr=ferruh.yigit@intel.com; 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WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <6aa38aa8-5bb3-fee1-0449-c1cc11115a67@intel.com> Content-Type: text/plain; charset="UTF-8" Content-Language: en-US Content-Transfer-Encoding: 7bit Subject: Re: [dpdk-dev] [PATCH v2 7/7] app/testpmd: verify mtu with rte_eth_dev_info_get() 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" Message-ID: <20190328164100.agCvWmhURU7Gf1zwyrrRMahFP8_r_lDf2P15Ulz-uds@z> On 3/25/2019 2:20 PM, Ferruh Yigit wrote: > On 3/22/2019 1:01 PM, Ian Stokes wrote: >> This commit uses the mtu fields populated in rte_eth_dev_info_get() >> to validate the mtu value being passed in port_mtu_set(). >> >> Signed-off-by: Ian Stokes > > For patch title, I think 'rte_eth_dev_info_get()' is implementation detail here, > what we are verifying mtu against min/max MTU information provided by PMDs. > What do you think something like: > app/testpmd: verify MTU with PMD provided limits > >> --- >> app/test-pmd/config.c | 4 ++++ >> 1 file changed, 4 insertions(+) >> >> diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c >> index b9e5dd923..6ca97d0e7 100644 >> --- a/app/test-pmd/config.c >> +++ b/app/test-pmd/config.c >> @@ -1063,9 +1063,13 @@ void >> port_mtu_set(portid_t port_id, uint16_t mtu) >> { >> int diag; >> + struct rte_eth_dev_info dev_info; >> >> if (port_id_is_invalid(port_id, ENABLED_WARN)) >> return; >> + rte_eth_dev_info_get(port_id, &dev_info); >> + if (mtu > dev_info.max_mtu || mtu < dev_info.min_mtu) >> + return; > > This fails silently, I think better to put a log for failure. Ian seems out of office, I can update this myself if set of the patchset is good.