From patchwork Mon Sep 27 13:25:16 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nipun Gupta X-Patchwork-Id: 99793 X-Patchwork-Delegate: thomas@monjalon.net Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 76E63A0548; Mon, 27 Sep 2021 15:26:23 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id AB96141137; Mon, 27 Sep 2021 15:25:34 +0200 (CEST) Received: from inva021.nxp.com (inva021.nxp.com [92.121.34.21]) by mails.dpdk.org (Postfix) with ESMTP id 3C1D0410E1 for ; Mon, 27 Sep 2021 15:25:24 +0200 (CEST) Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 189B9200010; Mon, 27 Sep 2021 15:25:24 +0200 (CEST) Received: from aprdc01srsp001v.ap-rdc01.nxp.com (aprdc01srsp001v.ap-rdc01.nxp.com [165.114.16.16]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id D114A201116; Mon, 27 Sep 2021 15:25:23 +0200 (CEST) Received: from lsv03274.swis.in-blr01.nxp.com (lsv03274.swis.in-blr01.nxp.com [92.120.147.114]) by aprdc01srsp001v.ap-rdc01.nxp.com (Postfix) with ESMTP id 2C5EA183AD07; Mon, 27 Sep 2021 21:25:23 +0800 (+08) From: nipun.gupta@nxp.com To: dev@dpdk.org Cc: thomas@monjalon.net, ferruh.yigit@intel.com, hemant.agrawal@nxp.com, sachin.saxena@nxp.com, Rohit Raj Date: Mon, 27 Sep 2021 18:55:16 +0530 Message-Id: <20210927132519.19264-9-nipun.gupta@nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210927132519.19264-1-nipun.gupta@nxp.com> References: <20210927122650.30881-1-nipun.gupta@nxp.com> <20210927132519.19264-1-nipun.gupta@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP Subject: [dpdk-dev] [PATCH v1 08/11] net/dpaa: add comments to explain driver behaviour X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 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" From: Rohit Raj This patch adds comment to explain how dpaa_port_fmc_ccnode_parse function is working to get the HW queue from FMC policy file Signed-off-by: Rohit Raj --- drivers/net/dpaa/dpaa_fmc.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/net/dpaa/dpaa_fmc.c b/drivers/net/dpaa/dpaa_fmc.c index 5195053361..f8c9360311 100644 --- a/drivers/net/dpaa/dpaa_fmc.c +++ b/drivers/net/dpaa/dpaa_fmc.c @@ -1,5 +1,5 @@ /* SPDX-License-Identifier: BSD-3-Clause - * Copyright 2017-2020 NXP + * Copyright 2017-2021 NXP */ /* System headers */ @@ -338,6 +338,12 @@ static int dpaa_port_fmc_ccnode_parse(struct fman_if *fif, fqid = keys_params->key_params[j].cc_next_engine_params .params.enqueue_params.new_fqid; + /* We read DPDK queue from last classification rule present in + * FMC policy file. Hence, this check is required here. + * Also, the last classification rule in FMC policy file must + * have userspace queue so that it can be used by DPDK + * application. + */ if (keys_params->key_params[j].cc_next_engine_params .next_engine != e_IOC_FM_PCD_DONE) { DPAA_PMD_WARN("FMC CC next engine not support");