From patchwork Fri Aug 7 15:58:54 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Power, Ciara" X-Patchwork-Id: 75304 X-Patchwork-Delegate: david.marchand@redhat.com Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 0F2E7A04B0; Fri, 7 Aug 2020 18:07:46 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id AE5091C0D9; Fri, 7 Aug 2020 18:06:38 +0200 (CEST) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by dpdk.org (Postfix) with ESMTP id E66E01C0C9 for ; Fri, 7 Aug 2020 18:06:36 +0200 (CEST) IronPort-SDR: /4/PKH8PPsivkqyd/bWjCOL0tFX89oDo4TPi4rEXGTZab3s4s2teLQJI7yiaDZIo016GMFyln8 EWcpbiu31/Sg== X-IronPort-AV: E=McAfee;i="6000,8403,9705"; a="171183073" X-IronPort-AV: E=Sophos;i="5.75,446,1589266800"; d="scan'208";a="171183073" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Aug 2020 09:06:36 -0700 IronPort-SDR: dM0tc5+9Bb8JsCpUGZpP3QEzzt8Mp2U/lCvJ7VWSV3cNoYlOFSjJh5FHhknpjgdkcgoePEBf/H +wOVgaiFmYJw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.75,446,1589266800"; d="scan'208";a="275407919" Received: from silpixa00399953.ir.intel.com (HELO silpixa00399953.ger.corp.intel.com) ([10.237.222.53]) by fmsmga007.fm.intel.com with ESMTP; 07 Aug 2020 09:06:35 -0700 From: Ciara Power To: dev@dpdk.org Cc: bruce.richardson@intel.com, Ciara Power , Qi Zhang , Xiao Wang Date: Fri, 7 Aug 2020 16:58:54 +0100 Message-Id: <20200807155859.63888-8-ciara.power@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200807155859.63888-1-ciara.power@intel.com> References: <20200807155859.63888-1-ciara.power@intel.com> Subject: [dpdk-dev] [PATCH 20.11 07/12] net/fm10k: add checks for max SIMD bitwidth 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" When choosing a vector path to take, an extra condition must be satisfied to ensure the max SIMD bitwidth allows for the CPU enabled path. Cc: Qi Zhang Cc: Xiao Wang Signed-off-by: Ciara Power --- drivers/net/fm10k/fm10k_ethdev.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/net/fm10k/fm10k_ethdev.c b/drivers/net/fm10k/fm10k_ethdev.c index b574693bca..f7c41d4377 100644 --- a/drivers/net/fm10k/fm10k_ethdev.c +++ b/drivers/net/fm10k/fm10k_ethdev.c @@ -2937,7 +2937,9 @@ fm10k_set_tx_function(struct rte_eth_dev *dev) if (rte_eal_process_type() != RTE_PROC_PRIMARY) { /* primary process has set the ftag flag and offloads */ txq = dev->data->tx_queues[0]; - if (fm10k_tx_vec_condition_check(txq)) { + if (fm10k_tx_vec_condition_check(txq) || + rte_get_max_simd_bitwidth() + < RTE_MAX_128_SIMD) { dev->tx_pkt_burst = fm10k_xmit_pkts; dev->tx_pkt_prepare = fm10k_prep_pkts; PMD_INIT_LOG(DEBUG, "Use regular Tx func"); @@ -2956,7 +2958,8 @@ fm10k_set_tx_function(struct rte_eth_dev *dev) txq = dev->data->tx_queues[i]; txq->tx_ftag_en = tx_ftag_en; /* Check if Vector Tx is satisfied */ - if (fm10k_tx_vec_condition_check(txq)) + if (fm10k_tx_vec_condition_check(txq) || + rte_get_max_simd_bitwidth() < RTE_MAX_128_SIMD) use_sse = 0; } @@ -2990,7 +2993,9 @@ fm10k_set_rx_function(struct rte_eth_dev *dev) * conditions to be met. */ if (!fm10k_rx_vec_condition_check(dev) && - dev_info->rx_vec_allowed && !rx_ftag_en) { + dev_info->rx_vec_allowed && !rx_ftag_en && + rte_get_max_simd_bitwidth() + >= RTE_MAX_128_SIMD) { if (dev->data->scattered_rx) dev->rx_pkt_burst = fm10k_recv_scattered_pkts_vec; else