From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tonghao Zhang Subject: [PATCH 2/5] net/ixgbevf: set the inter-interrupt interval for EITR. Date: Fri, 5 Jan 2018 06:10:36 -0800 Message-ID: <1515161439-4792-2-git-send-email-xiangxia.m.yue@gmail.com> References: <1515161439-4792-1-git-send-email-xiangxia.m.yue@gmail.com> Cc: Tonghao Zhang To: dev@dpdk.org Return-path: Received: from mail-pf0-f194.google.com (mail-pf0-f194.google.com [209.85.192.194]) by dpdk.org (Postfix) with ESMTP id C62751B168 for ; Fri, 5 Jan 2018 15:11:57 +0100 (CET) Received: by mail-pf0-f194.google.com with SMTP id j28so2222467pfk.8 for ; Fri, 05 Jan 2018 06:11:57 -0800 (PST) In-Reply-To: <1515161439-4792-1-git-send-email-xiangxia.m.yue@gmail.com> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Set EITR interval as default. This patch can improve the performance when we enable the rx-intrrupt to process the packets because we hope rx-intrrupt reduce CPU. The 200us value of EITR makes the performance better with the low CPU. Signed-off-by: Tonghao Zhang --- drivers/net/ixgbe/ixgbe_ethdev.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c index e67389f..b20cab9 100644 --- a/drivers/net/ixgbe/ixgbe_ethdev.c +++ b/drivers/net/ixgbe/ixgbe_ethdev.c @@ -5780,6 +5780,9 @@ static void ixgbevf_set_vfta_all(struct rte_eth_dev *dev, bool on) if (vector_idx < base + intr_handle->nb_efd - 1) vector_idx++; } + + IXGBE_WRITE_REG(hw, IXGBE_VTEITR(IXGBE_MISC_VEC_ID), + IXGBE_EITR_INTERVAL_US(200) | IXGBE_EITR_CNT_WDIS); } /** -- 1.8.3.1