From patchwork Wed Oct 19 01:30:14 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiao Wang X-Patchwork-Id: 16683 X-Patchwork-Delegate: bruce.richardson@intel.com 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 24F9C58CF; Wed, 19 Oct 2016 03:30:43 +0200 (CEST) Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by dpdk.org (Postfix) with ESMTP id 74F72475D for ; Wed, 19 Oct 2016 03:30:41 +0200 (CEST) Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga103.fm.intel.com with ESMTP; 18 Oct 2016 18:30:22 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.31,364,1473145200"; d="scan'208";a="181260184" Received: from shvmail01.sh.intel.com ([10.239.29.42]) by fmsmga004.fm.intel.com with ESMTP; 18 Oct 2016 18:30:21 -0700 Received: from shecgisg004.sh.intel.com (shecgisg004.sh.intel.com [10.239.29.89]) by shvmail01.sh.intel.com with ESMTP id u9J1UJfC028196; Wed, 19 Oct 2016 09:30:19 +0800 Received: from shecgisg004.sh.intel.com (localhost [127.0.0.1]) by shecgisg004.sh.intel.com (8.13.6/8.13.6/SuSE Linux 0.8) with ESMTP id u9J1UFf6001547; Wed, 19 Oct 2016 09:30:17 +0800 Received: (from xiaowan1@localhost) by shecgisg004.sh.intel.com (8.13.6/8.13.6/Submit) id u9J1UFkV001543; Wed, 19 Oct 2016 09:30:15 +0800 From: Xiao Wang To: jing.d.chen@intel.com Cc: dev@dpdk.org, Xiao Wang Date: Wed, 19 Oct 2016 09:30:14 +0800 Message-Id: <1476840614-1478-1-git-send-email-xiao.w.wang@intel.com> X-Mailer: git-send-email 1.7.4.1 Subject: [dpdk-dev] [PATCH] net/fm10k: fix SGLORT of VF Tx queues 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" The SGLORT (Source Global Resource Tag) of the VF queues should be assigned by PF driver, VF driver should not set these registers. Fixes: 3b845bf6bcd9 ("fm10k: fix switch manager high CPU usage") Signed-off-by: Xiao Wang Reported-by: Sarathx Somasekharan --- drivers/net/fm10k/fm10k_ethdev.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/net/fm10k/fm10k_ethdev.c b/drivers/net/fm10k/fm10k_ethdev.c index c804436..923690c 100644 --- a/drivers/net/fm10k/fm10k_ethdev.c +++ b/drivers/net/fm10k/fm10k_ethdev.c @@ -695,8 +695,9 @@ fm10k_dev_tx_init(struct rte_eth_dev *dev) base_addr >> (CHAR_BIT * sizeof(uint32_t))); FM10K_WRITE_REG(hw, FM10K_TDLEN(i), size); - /* assign default SGLORT for each TX queue */ - FM10K_WRITE_REG(hw, FM10K_TX_SGLORT(i), hw->mac.dglort_map); + /* assign default SGLORT for each TX queue by PF */ + if (hw->mac.type == fm10k_mac_pf) + FM10K_WRITE_REG(hw, FM10K_TX_SGLORT(i), hw->mac.dglort_map); } /* set up vector or scalar TX function as appropriate */