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 EC441A00E6 for ; Fri, 14 Jun 2019 17:42:31 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 0E3391D579; Fri, 14 Jun 2019 17:42:31 +0200 (CEST) Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by dpdk.org (Postfix) with ESMTP id 2D3C91D4F3; Fri, 14 Jun 2019 17:42:29 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga107.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 14 Jun 2019 08:42:28 -0700 X-ExtLoop1: 1 Received: from fyigit-mobl.ger.corp.intel.com (HELO [10.237.221.26]) ([10.237.221.26]) by orsmga006.jf.intel.com with ESMTP; 14 Jun 2019 08:42:26 -0700 To: "Zhao1, Wei" , "dev@dpdk.org" Cc: "stable@dpdk.org" , "Peng, Yuan" , "Lu, Wenzhuo" , Kevin Traynor References: <1557386447-57225-1-git-send-email-wei.zhao1@intel.com> From: Ferruh Yigit Openpgp: preference=signencrypt Autocrypt: addr=ferruh.yigit@intel.com; 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WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Subject: Re: [dpdk-dev] [dpdk-stable] [PATCH] app/testpmd: fix offloads overwrite by default configuration 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 6/12/2019 2:17 AM, Zhao1, Wei wrote: > > >> -----Original Message----- >> From: Yigit, Ferruh >> Sent: Tuesday, June 11, 2019 10:37 PM >> To: Zhao1, Wei ; dev@dpdk.org >> Cc: stable@dpdk.org; Peng, Yuan ; Lu, Wenzhuo >> ; Kevin Traynor >> Subject: Re: [dpdk-stable] [PATCH] app/testpmd: fix offloads overwrite by >> default configuration >> >> On 5/9/2019 8:20 AM, Wei Zhao wrote: >>> There is an error in function rxtx_port_config(), which may overwrite >>> offloads configuration get from function launch_args_parse() when run >>> testpmd app. So rxtx_port_config() should do "or" for port offloads. >>> >>> Fixes: d44f8a485f5d ("app/testpmd: enable per queue configure") >>> cc: stable@dpdk.org >>> >>> Signed-off-by: Wei Zhao >>> --- >>> app/test-pmd/testpmd.c | 5 +++++ >>> 1 file changed, 5 insertions(+) >>> >>> diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c index >>> 6fbfd29..f0061d9 100644 >>> --- a/app/test-pmd/testpmd.c >>> +++ b/app/test-pmd/testpmd.c >>> @@ -2809,9 +2809,12 @@ static void >>> rxtx_port_config(struct rte_port *port) { >>> uint16_t qid; >>> + uint64_t offloads; >>> >>> for (qid = 0; qid < nb_rxq; qid++) { >>> + offloads = port->rx_conf[qid].offloads; >>> port->rx_conf[qid] = port->dev_info.default_rxconf; >>> + port->rx_conf[qid].offloads |= offloads; >> >> While talking with Kevin, he pointed out the error in this code. >> >> We are updating queue level offloads, with whatever in the 'offloads' and it can >> be non-queue level offloads in it, next time ethdev API called these values are >> caught by the API checks and causing an error. >> >> It looks like port level offload flags needs to be masted out before writing to >> queue level 'offloads' variable. > > > By the way, this error in not introduced in this patch, it seems has exist long before this patch. > This patch is just fix for overwrite problem. I disagree, writing 'offloads' to "rx_conf[].offloads" without checking if they queue offloads or not causing this problem. And that write introduced in this patch. > > > >> >>> >>> /* Check if any Rx parameters have been passed */ >>> if (rx_pthresh != RTE_PMD_PARAM_UNSET) @@ -2833,7 >> +2836,9 @@ >>> rxtx_port_config(struct rte_port *port) >>> } >>> >>> for (qid = 0; qid < nb_txq; qid++) { >>> + offloads = port->tx_conf[qid].offloads; >>> port->tx_conf[qid] = port->dev_info.default_txconf; >>> + port->tx_conf[qid].offloads |= offloads; >>> >>> /* Check if any Tx parameters have been passed */ >>> if (tx_pthresh != RTE_PMD_PARAM_UNSET) >>> >