From patchwork Wed Apr 4 17:17:39 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Remy Horton X-Patchwork-Id: 37197 X-Patchwork-Delegate: ferruh.yigit@amd.com Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id A5ABA1C850; Wed, 4 Apr 2018 19:17:56 +0200 (CEST) Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by dpdk.org (Postfix) with ESMTP id BBA011C841 for ; Wed, 4 Apr 2018 19:17:53 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga007.jf.intel.com ([10.7.209.58]) by fmsmga107.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 04 Apr 2018 10:17:52 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.48,407,1517904000"; d="scan'208";a="30692686" Received: from bclancy-mobl.ger.corp.intel.com (HELO FC23.ger.corp.intel.com) ([10.252.5.141]) by orsmga007.jf.intel.com with ESMTP; 04 Apr 2018 10:17:51 -0700 From: Remy Horton To: dev@dpdk.org Cc: John McNamara , Wenzhuo Lu , Jingjing Wu , Qi Zhang , Beilei Xing , Shreyansh Jain , Thomas Monjalon Date: Wed, 4 Apr 2018 18:17:39 +0100 Message-Id: <20180404171740.5084-4-remy.horton@intel.com> X-Mailer: git-send-email 2.9.5 In-Reply-To: <20180404171740.5084-1-remy.horton@intel.com> References: <20180404171740.5084-1-remy.horton@intel.com> Subject: [dpdk-dev] [PATCH v3 3/4] net/i40e: add TxRx tuning parameters 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" The optimal values of several transmission & reception related parameters, such as burst sizes, descriptor ring sizes, and number of queues, varies between different network interface devices. This patch allows individual PMDs to specify preferred parameter values. Signed-off-by: Remy Horton --- drivers/net/i40e/i40e_ethdev.c | 33 ++++++++++++++++++++++++++++++--- 1 file changed, 30 insertions(+), 3 deletions(-) diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c index d0bf4e3..acf1f99 100644 --- a/drivers/net/i40e/i40e_ethdev.c +++ b/drivers/net/i40e/i40e_ethdev.c @@ -3291,15 +3291,42 @@ i40e_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info) dev_info->max_tx_queues += dev_info->vmdq_queue_num; } - if (I40E_PHY_TYPE_SUPPORT_40G(hw->phy.phy_types)) + if (I40E_PHY_TYPE_SUPPORT_40G(hw->phy.phy_types)) { /* For XL710 */ dev_info->speed_capa = ETH_LINK_SPEED_40G; - else if (I40E_PHY_TYPE_SUPPORT_25G(hw->phy.phy_types)) + dev_info->default_rxportconf.nb_queues = 2; + dev_info->default_txportconf.nb_queues = 2; + if (dev->data->nb_rx_queues == 1) + dev_info->default_rxportconf.ring_size = 2048; + else + dev_info->default_rxportconf.ring_size = 1024; + if (dev->data->nb_tx_queues == 1) + dev_info->default_txportconf.ring_size = 1024; + else + dev_info->default_txportconf.ring_size = 512; + + } else if (I40E_PHY_TYPE_SUPPORT_25G(hw->phy.phy_types)) { /* For XXV710 */ dev_info->speed_capa = ETH_LINK_SPEED_25G; - else + dev_info->default_rxportconf.nb_queues = 1; + dev_info->default_txportconf.nb_queues = 1; + dev_info->default_rxportconf.ring_size = 256; + dev_info->default_txportconf.ring_size = 256; + } else { /* For X710 */ dev_info->speed_capa = ETH_LINK_SPEED_1G | ETH_LINK_SPEED_10G; + dev_info->default_rxportconf.nb_queues = 1; + dev_info->default_txportconf.nb_queues = 1; + if (dev->data->dev_conf.link_speeds & ETH_LINK_SPEED_10G) { + dev_info->default_rxportconf.ring_size = 512; + dev_info->default_txportconf.ring_size = 256; + } else { + dev_info->default_rxportconf.ring_size = 256; + dev_info->default_txportconf.ring_size = 256; + } + } + dev_info->default_rxportconf.burst_size = 32; + dev_info->default_txportconf.burst_size = 32; } static int