From patchwork Thu Feb 5 06:04:48 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stephen Hemminger X-Patchwork-Id: 2998 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 24E22B416; Thu, 5 Feb 2015 07:05:06 +0100 (CET) Received: from mail-pd0-f171.google.com (mail-pd0-f171.google.com [209.85.192.171]) by dpdk.org (Postfix) with ESMTP id 35DF8B400 for ; Thu, 5 Feb 2015 07:05:03 +0100 (CET) Received: by pdbfp1 with SMTP id fp1so5671243pdb.4 for ; Wed, 04 Feb 2015 22:05:02 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=CZ67Bx3NECy+V6Xaij9UPjjXXAS2Yuj5qjY+254qWDU=; b=bWuVeFKyEkpmwhg17HJ8vk+lk6hwKmKE4Ed7etPSb0bTWBtLfwxtKz+3+M/FJM10cS wmyNlbf9wZuf3TzV+uaW3pFBxbMwWdBaLAkD6Yi/2qOuK0fr5smeCOiNnLt3DV5fWinB p5u1FzYN/mwE8Y17ZAbZ1cHheh1IDV1j5l1P2pomtbzTq8XHbuYlC5OrTPDlRfFIa+br dJPr+UmJyKJ1GgeYeg97sEBNu+wctVMJuIeegqlPCJlgNTYTPTLOi6mVDHWRU/qMKQHH VJwQdKOm9AbvHr3zXZGpJzsQqK2Fv94KWdVO9Qi1tiGSaxZc6kqtlQJuAx7mbZvttz20 St2Q== X-Gm-Message-State: ALoCoQlcNA3F/tYP5JLcslJrGp8rgZKtE6YuTxY2IuVJ76xTYnhFznJazAS58PHlQZ93tWIuZNpr X-Received: by 10.66.100.202 with SMTP id fa10mr3382896pab.36.1423116299605; Wed, 04 Feb 2015 22:04:59 -0800 (PST) Received: from urahara.brocade.com (static-50-53-82-155.bvtn.or.frontiernet.net. [50.53.82.155]) by mx.google.com with ESMTPSA id sl5sm3817154pbc.45.2015.02.04.22.04.58 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 04 Feb 2015 22:04:58 -0800 (PST) From: Stephen Hemminger To: dev@dpdk.org Date: Wed, 4 Feb 2015 22:04:48 -0800 Message-Id: <1423116294-17080-1-git-send-email-stephen@networkplumber.org> X-Mailer: git-send-email 2.1.4 Cc: Stephen Hemminger Subject: [dpdk-dev] [PATCH v2 1/7] rte_sched: make RED optional at runtime 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: Stephen Hemminger Want to be able to build with RTE_SCHED_RED enabled but allow disabling RED on a per-queue basis at runtime. RED is disabled unless min/max thresholds set. Signed-off-by: Stephen Hemmminger --- lib/librte_sched/rte_sched.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/lib/librte_sched/rte_sched.c b/lib/librte_sched/rte_sched.c index 95dee27..6928c98 100644 --- a/lib/librte_sched/rte_sched.c +++ b/lib/librte_sched/rte_sched.c @@ -636,6 +636,12 @@ rte_sched_port_config(struct rte_sched_port_params *params) uint32_t j; for (j = 0; j < e_RTE_METER_COLORS; j++) { + /* if min/max are both zero, then RED is disabled */ + if ((params->red_params[i][j].min_th | + params->red_params[i][j].max_th) == 0) { + continue; + } + if (rte_red_config_init(&port->red_config[i][j], params->red_params[i][j].wq_log2, params->red_params[i][j].min_th, @@ -1069,6 +1075,9 @@ rte_sched_port_red_drop(struct rte_sched_port *port, struct rte_mbuf *pkt, uint3 color = rte_sched_port_pkt_read_color(pkt); red_cfg = &port->red_config[tc_index][color]; + if ( (red_cfg->min_th | red_cfg->max_th) == 0) + return 0; + qe = port->queue_extra + qindex; red = &qe->red;