From patchwork Fri Apr 6 13:54:35 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Remy Horton X-Patchwork-Id: 37409 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 5D6C81D175; Fri, 6 Apr 2018 15:54:47 +0200 (CEST) Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by dpdk.org (Postfix) with ESMTP id 02DFE1D173 for ; Fri, 6 Apr 2018 15:54:45 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga103.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 06 Apr 2018 06:54:45 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.48,415,1517904000"; d="scan'208";a="189202289" Received: from rhorton-mobl1.ger.corp.intel.com (HELO FC23.ir.intel.com) ([163.33.230.76]) by orsmga004.jf.intel.com with ESMTP; 06 Apr 2018 06:54:43 -0700 From: Remy Horton To: dev@dpdk.org Cc: John McNamara , Wenzhuo Lu , Jingjing Wu , Qi Zhang , Beilei Xing , Shreyansh Jain , Thomas Monjalon Date: Fri, 6 Apr 2018 14:54:35 +0100 Message-Id: <20180406135436.25719-4-remy.horton@intel.com> X-Mailer: git-send-email 2.9.5 In-Reply-To: <20180406135436.25719-1-remy.horton@intel.com> References: <20180406135436.25719-1-remy.horton@intel.com> Subject: [dpdk-dev] [PATCH v4 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