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 83770A0679 for ; Fri, 5 Apr 2019 16:56:06 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id D77901B520; Fri, 5 Apr 2019 16:56:04 +0200 (CEST) Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by dpdk.org (Postfix) with ESMTP id 96BAF1B4F2 for ; Fri, 5 Apr 2019 16:56:03 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 05 Apr 2019 07:56:02 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,313,1549958400"; d="scan'208";a="335300363" Received: from fyigit-mobl.ger.corp.intel.com (HELO [10.237.221.46]) ([10.237.221.46]) by fmsmga005.fm.intel.com with ESMTP; 05 Apr 2019 07:56:00 -0700 To: Nikhil Agarwal , nikhil.agarwal@nxp.com, hemant.agrawal@nxp.com Cc: Thomas Monjalon , dev@dpdk.org, david.hunt@intel.com, arybchenko@solarflare.com, shahafs@mellanox.com References: <20171212100520.20502-1-nikhil.agarwal@linaro.org> <1867579.zxL6BAlCOx@xps> From: Ferruh Yigit 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: <1867579.zxL6BAlCOx@xps> Content-Type: text/plain; charset="UTF-8" Content-Language: en-US Content-Transfer-Encoding: 7bit Subject: Re: [dpdk-dev] [PATCH 1/3] ethdev: add max burst size to device 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" Message-ID: <20190405145559.eb0EFpFmmiLbDHwkOFwv2P3B2YhvM7gj3VxSdCsi8Ak@z> On 5/22/2018 11:17 PM, Thomas Monjalon wrote: > 12/12/2017 11:05, Nikhil Agarwal: >> Currently, if the rte_eth_rx_burst() function returns a value less than >> *nb_pkts*, the application will assume that no more packets are present. >> >> Some of the hw queue based hardware can only support smaller burst for RX >> and TX and thus break the expectation of the rx_burst API. >> >> This patch adds support to provide the maximum burst size that can be >> supported by a given PMD. The dev_info is being memset to '0' in >> rte_ethdev library. The value of '0' indicates that any value for burst >> size can be supported i.e. no change for existing PMDs. >> >> The application can now use the lowest available max_burst_size value >> for rte_eth_rx_burst. >> >> Signed-off-by: Nikhil Agarwal >> --- >> @@ -1047,6 +1047,7 @@ struct rte_eth_dev_info { >> /** Configured number of rx/tx queues */ >> uint16_t nb_rx_queues; /**< Number of RX queues. */ >> uint16_t nb_tx_queues; /**< Number of TX queues. */ >> + uint16_t max_burst_size; /**< MAX burst size, 0 for no limit. */ >> }; > > What is the status of this proposal? > > Recently, the preferred tuning have been added by > "ethdev: support PMD-tuned Tx/Rx parameters" > http://dpdk.org/commit/3be82f5cc5 Hi Nikhil, Hemant, PMD returning preferred 'burst_size' support already added, I guess this patchset is no more valid. I am updating this as rejected. If something is missing or there are still some relevant pieces in this patch, please send as a new version on top of latest head. Thanks, ferruh