From patchwork Fri Sep 26 06:03:31 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jingjing Wu X-Patchwork-Id: 551 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 CA6E37E3C; Fri, 26 Sep 2014 07:57:59 +0200 (CEST) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by dpdk.org (Postfix) with ESMTP id 703577E20 for ; Fri, 26 Sep 2014 07:57:56 +0200 (CEST) Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga101.fm.intel.com with ESMTP; 25 Sep 2014 23:04:13 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.04,603,1406617200"; d="scan'208";a="597109995" Received: from shvmail01.sh.intel.com ([10.239.29.42]) by fmsmga001.fm.intel.com with ESMTP; 25 Sep 2014 23:04:12 -0700 Received: from shecgisg004.sh.intel.com (shecgisg004.sh.intel.com [10.239.29.89]) by shvmail01.sh.intel.com with ESMTP id s8Q64B83029335; Fri, 26 Sep 2014 14:04:11 +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 s8Q649TR013008; Fri, 26 Sep 2014 14:04:11 +0800 Received: (from wujingji@localhost) by shecgisg004.sh.intel.com (8.13.6/8.13.6/Submit) id s8Q649lu013003; Fri, 26 Sep 2014 14:04:09 +0800 From: Jingjing Wu To: dev@dpdk.org Date: Fri, 26 Sep 2014 14:03:31 +0800 Message-Id: <1411711418-12881-14-git-send-email-jingjing.wu@intel.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1411711418-12881-1-git-send-email-jingjing.wu@intel.com> References: <1411711418-12881-1-git-send-email-jingjing.wu@intel.com> Subject: [dpdk-dev] [PATCH v3 13/20] i40e: implement operation to flush flow director table 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" implement operation to flush flow director table Signed-off-by: Jingjing Wu Acked-by: Chen Jing D(Mark) Acked-by: Helin Zhang --- lib/librte_pmd_i40e/i40e_fdir.c | 43 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) diff --git a/lib/librte_pmd_i40e/i40e_fdir.c b/lib/librte_pmd_i40e/i40e_fdir.c index d6c1793..973c8e0 100644 --- a/lib/librte_pmd_i40e/i40e_fdir.c +++ b/lib/librte_pmd_i40e/i40e_fdir.c @@ -92,6 +92,7 @@ static int i40e_fdir_filter_programming(struct i40e_pf *pf, enum i40e_filter_pctype pctype, struct rte_eth_fdir_filter *filter, bool add); +static int i40e_fdir_flush(struct i40e_pf *pf); static void i40e_fdir_info_get(struct i40e_pf *pf, struct rte_eth_fdir_info *fdir); @@ -867,6 +868,45 @@ i40e_fdir_filter_programming(struct i40e_pf *pf, } /* + * i40e_fdir_flush - clear all filters of Flow Director + * @pf: board private structure + */ +static int +i40e_fdir_flush(struct i40e_pf *pf) +{ + struct i40e_hw *hw = I40E_PF_TO_HW(pf); + uint32_t reg; + uint16_t guarant_cnt, best_cnt; + int i; + + I40E_WRITE_REG(hw, I40E_PFQF_CTL_1, I40E_PFQF_CTL_1_CLEARFDTABLE_MASK); + I40E_WRITE_FLUSH(hw); + + for (i = 0; i < I40E_FDIR_FLUSH_RETRY; i++) { + rte_delay_ms(I40E_FDIR_FLUSH_INTERVAL_MS); + reg = I40E_READ_REG(hw, I40E_PFQF_CTL_1); + if (!(reg & I40E_PFQF_CTL_1_CLEARFDTABLE_MASK)) + break; + } + if (i >= I40E_FDIR_FLUSH_RETRY) { + PMD_DRV_LOG(ERR, "FD table did not flush, may need more time."); + return -ETIMEDOUT; + } + guarant_cnt = (uint16_t)((I40E_READ_REG(hw, I40E_PFQF_FDSTAT) & + I40E_PFQF_FDSTAT_GUARANT_CNT_MASK) >> + I40E_PFQF_FDSTAT_GUARANT_CNT_SHIFT); + best_cnt = (uint16_t)((I40E_READ_REG(hw, I40E_PFQF_FDSTAT) & + I40E_PFQF_FDSTAT_BEST_CNT_MASK) >> + I40E_PFQF_FDSTAT_BEST_CNT_SHIFT); + if (guarant_cnt != 0 || best_cnt != 0) { + PMD_DRV_LOG(ERR, "Failed to flush FD table."); + return -ENOSYS; + } else + PMD_DRV_LOG(INFO, "FD table Flush success."); + return 0; +} + +/* * i40e_fdir_info_get - get information of Flow Director * @pf: ethernet device to get info from * @fdir: a pointer to a structure of type *rte_eth_fdir_info* to be filled with @@ -925,6 +965,9 @@ i40e_fdir_ctrl_func(struct i40e_pf *pf, enum rte_filter_op filter_op, void *arg) (struct rte_eth_fdir_filter *)arg, FALSE); break; + case RTE_ETH_FILTER_OP_FLUSH: + ret = i40e_fdir_flush(pf); + break; case RTE_ETH_FILTER_OP_GET_INFO: i40e_fdir_info_get(pf, (struct rte_eth_fdir_info *)arg); break;