From patchwork Fri May 29 08:10:40 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Chen, Jing D" X-Patchwork-Id: 4954 Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [IPv6:::1]) by dpdk.org (Postfix) with ESMTP id 92784B3D6; Fri, 29 May 2015 10:11:00 +0200 (CEST) Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by dpdk.org (Postfix) with ESMTP id 9B090B38D for ; Fri, 29 May 2015 10:10:57 +0200 (CEST) Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga103.fm.intel.com with ESMTP; 29 May 2015 01:10:57 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.13,515,1427785200"; d="scan'208";a="578674336" Received: from shvmail01.sh.intel.com ([10.239.29.42]) by orsmga003.jf.intel.com with ESMTP; 29 May 2015 01:10:57 -0700 Received: from shecgisg003.sh.intel.com (shecgisg003.sh.intel.com [10.239.29.90]) by shvmail01.sh.intel.com with ESMTP id t4T8Assb010701; Fri, 29 May 2015 16:10:54 +0800 Received: from shecgisg003.sh.intel.com (localhost [127.0.0.1]) by shecgisg003.sh.intel.com (8.13.6/8.13.6/SuSE Linux 0.8) with ESMTP id t4T8AqSp024825; Fri, 29 May 2015 16:10:54 +0800 Received: (from jingche2@localhost) by shecgisg003.sh.intel.com (8.13.6/8.13.6/Submit) id t4T8Aqql024821; Fri, 29 May 2015 16:10:52 +0800 From: "Chen Jing D(Mark)" To: dev@dpdk.org Date: Fri, 29 May 2015 16:10:40 +0800 Message-Id: <1432887044-24777-3-git-send-email-jing.d.chen@intel.com> X-Mailer: git-send-email 1.7.12.2 In-Reply-To: <1432887044-24777-1-git-send-email-jing.d.chen@intel.com> References: <1432887044-24777-1-git-send-email-jing.d.chen@intel.com> Cc: shaopeng.he@intel.com Subject: [dpdk-dev] [PATCH 2/6] fm10k: Fix jumbo frame issue X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" From: "Chen Jing D(Mark)" fm10k can't receive frame greater than 1536 and Scatter RX function can't work correctly. The root cause is SRRCTL.FM10K_SRRCTL_BUFFER_CHAINING_EN bit is not enabled. Signed-off-by: Chen Jing D(Mark) Tested-by: Michael Qiu --- drivers/net/fm10k/fm10k_ethdev.c | 12 ++++++------ 1 files changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/net/fm10k/fm10k_ethdev.c b/drivers/net/fm10k/fm10k_ethdev.c index a5e09a0..19e718b 100644 --- a/drivers/net/fm10k/fm10k_ethdev.c +++ b/drivers/net/fm10k/fm10k_ethdev.c @@ -439,9 +439,14 @@ fm10k_dev_rx_init(struct rte_eth_dev *dev) /* It adds dual VLAN length for supporting dual VLAN */ if ((dev->data->dev_conf.rxmode.max_rx_pkt_len + - 2 * FM10K_VLAN_TAG_SIZE) > buf_size){ + 2 * FM10K_VLAN_TAG_SIZE) > buf_size || + dev->data->dev_conf.rxmode.enable_scatter) { + uint32_t reg; dev->data->scattered_rx = 1; dev->rx_pkt_burst = fm10k_recv_scattered_pkts; + reg = FM10K_READ_REG(hw, FM10K_SRRCTL(i)); + reg |= FM10K_SRRCTL_BUFFER_CHAINING_EN; + FM10K_WRITE_REG(hw, FM10K_SRRCTL(i), reg); } /* Enable drop on empty, it's RO for VF */ @@ -452,11 +457,6 @@ fm10k_dev_rx_init(struct rte_eth_dev *dev) FM10K_WRITE_FLUSH(hw); } - if (dev->data->dev_conf.rxmode.enable_scatter) { - dev->rx_pkt_burst = fm10k_recv_scattered_pkts; - dev->data->scattered_rx = 1; - } - /* Configure RSS if applicable */ fm10k_dev_mq_rx_configure(dev); return 0;