From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by dpdk.org (Postfix) with ESMTP id 753651D1D6 for ; Fri, 6 Apr 2018 16:50:09 +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 fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 06 Apr 2018 07:50:09 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.48,415,1517904000"; d="scan'208";a="31249042" Received: from rhorton-mobl1.ger.corp.intel.com (HELO FC23.ir.intel.com) ([163.33.230.76]) by orsmga007.jf.intel.com with ESMTP; 06 Apr 2018 07:50:07 -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 15:50:00 +0100 Message-Id: <20180406145002.27480-3-remy.horton@intel.com> X-Mailer: git-send-email 2.9.5 In-Reply-To: <20180406145002.27480-1-remy.horton@intel.com> References: <20180406145002.27480-1-remy.horton@intel.com> Subject: [dpdk-dev] [PATCH v5 2/4] net/e1000: 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: , X-List-Received-Date: Fri, 06 Apr 2018 14:50:09 -0000 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/e1000/em_ethdev.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/e1000/em_ethdev.c b/drivers/net/e1000/em_ethdev.c index f727382..2035ea8 100644 --- a/drivers/net/e1000/em_ethdev.c +++ b/drivers/net/e1000/em_ethdev.c @@ -1100,6 +1100,12 @@ eth_em_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info) dev_info->speed_capa = ETH_LINK_SPEED_10M_HD | ETH_LINK_SPEED_10M | ETH_LINK_SPEED_100M_HD | ETH_LINK_SPEED_100M | ETH_LINK_SPEED_1G; + + /* Preferred queue parameters */ + dev_info->default_rxportconf.nb_queues = 1; + dev_info->default_txportconf.nb_queues = 1; + dev_info->default_txportconf.ring_size = 256; + dev_info->default_rxportconf.ring_size = 256; } /* return 0 means link status changed, -1 means not changed */ -- 2.9.5