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[54.225.227.206]) by mx.google.com with ESMTP id z123si12525472qkc.122.2017.07.27.10.49.56; Thu, 27 Jul 2017 10:49:57 -0700 (PDT) Received-SPF: pass (google.com: domain of lng-odp-bounces@lists.linaro.org designates 54.225.227.206 as permitted sender) client-ip=54.225.227.206; Authentication-Results: mx.google.com; spf=pass (google.com: domain of lng-odp-bounces@lists.linaro.org designates 54.225.227.206 as permitted sender) smtp.mailfrom=lng-odp-bounces@lists.linaro.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: by lists.linaro.org (Postfix, from userid 109) id 5993C65C07; Thu, 27 Jul 2017 17:49:56 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on ip-10-142-244-252 X-Spam-Level: X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00, DATE_IN_PAST_03_06, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, RCVD_IN_SORBS_SPAM, URIBL_BLOCKED autolearn=disabled version=3.4.0 Received: from [127.0.0.1] (localhost [127.0.0.1]) by lists.linaro.org (Postfix) with ESMTP id A309665BFD; Thu, 27 Jul 2017 17:49:50 +0000 (UTC) X-Original-To: lng-odp@lists.linaro.org Delivered-To: lng-odp@lists.linaro.org Received: by lists.linaro.org (Postfix, from userid 109) id 5FA4E65BFE; Thu, 27 Jul 2017 17:49:49 +0000 (UTC) Received: from mail-pg0-f43.google.com (mail-pg0-f43.google.com [74.125.83.43]) by lists.linaro.org (Postfix) with ESMTPS id 2CF3565BFA for ; Thu, 27 Jul 2017 17:49:48 +0000 (UTC) Received: by mail-pg0-f43.google.com with SMTP id c14so8265351pgn.0 for ; Thu, 27 Jul 2017 10:49:48 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=1f+uKoqFc1p43fjKxAwvxnJ1ZAHdHUEyBSaWTitJx/M=; b=ANM0ZsbnPlcI5CnHZP6pE4XxOh2m7huymVGYO0hmgZCfe+f5vkcTA8iem/feZKE1PL uDQzUqWu3qV0Yt35WyJDzMF/PEPbexyth3gp10iXA75+YNisJMve4FZKAJyipEr9PPCk 8AIWbazqO1FPWjDrNsuSTuRLMdpsb+OY7u7ZN6aYLgH+7iiVbA7YZ2n38lGRZxJjkAEp E5DawWlnsKyD/CqoTHrQtLrFnjuHabeaV+qbiVEu4Bg42xBPBXk3U9XDz9sJb+H/r2Ux JJ42hatOPIXAQSuKNLiwzctlJO1g19RPeVg/4iF4s5hUtmPBozYh7QZagnh4rSRd6pS1 iE+Q== X-Gm-Message-State: AIVw113gtqvz6HZjbNYrIOtuBBdSqm9IRXNyqYw6kqYHTnZRoDKYpFoy t1gLgo7ckzv0l8PTgcltM+j6 X-Received: by 10.99.170.75 with SMTP id x11mr4779607pgo.140.1501177787113; Thu, 27 Jul 2017 10:49:47 -0700 (PDT) Received: from bala.domain.name ([117.199.137.21]) by smtp.gmail.com with ESMTPSA id 10sm39229655pfo.134.2017.07.27.10.49.44 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 27 Jul 2017 10:49:46 -0700 (PDT) From: Balasubramanian Manoharan To: lng-odp@lists.linaro.org Date: Thu, 27 Jul 2017 06:08:21 -0700 Message-Id: <1501160903-25098-1-git-send-email-bala.manoharan@linaro.org> X-Mailer: git-send-email 1.9.1 Subject: [lng-odp] [API-NEXTv5 1/3] api: classification: add support for packet hashing in classification X-BeenThere: lng-odp@lists.linaro.org X-Mailman-Version: 2.1.16 Precedence: list List-Id: "The OpenDataPlane \(ODP\) List" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: lng-odp-bounces@lists.linaro.org Sender: "lng-odp" Enable packet hashing per CoS to be able to distribute incoming packets to multiple queues linked with a CoS. Signed-off-by: Balasubramanian Manoharan --- include/odp/api/spec/classification.h | 90 +++++++++++++++++++++++++++++++++-- 1 file changed, 85 insertions(+), 5 deletions(-) -- 1.9.1 diff --git a/include/odp/api/spec/classification.h b/include/odp/api/spec/classification.h index 39831b2..c76555b 100644 --- a/include/odp/api/spec/classification.h +++ b/include/odp/api/spec/classification.h @@ -4,7 +4,6 @@ * SPDX-License-Identifier: BSD-3-Clause */ - /** * @file * @@ -19,12 +18,13 @@ extern "C" { #endif +#include +#include /** @defgroup odp_classification ODP CLASSIFICATION * Classification operations. * @{ */ - /** * @typedef odp_cos_t * ODP Class of service handle @@ -126,6 +126,13 @@ typedef struct odp_cls_capability_t { /** Maximum number of CoS supported */ unsigned max_cos; + /** Maximun number of queue supported per CoS + * if the value is 1, then hashing is not supported*/ + unsigned max_hash_queues; + + /** Protocol header combination supported for Hashing */ + odp_pktin_hash_proto_t hash_protocols; + /** A Boolean to denote support of PMR range */ odp_bool_t pmr_range_supported; } odp_cls_capability_t; @@ -164,9 +171,40 @@ typedef enum { * Used to communicate class of service creation options */ typedef struct odp_cls_cos_param { - odp_queue_t queue; /**< Queue associated with CoS */ - odp_pool_t pool; /**< Pool associated with CoS */ - odp_cls_drop_t drop_policy; /**< Drop policy associated with CoS */ + /* Number of queues to be linked to this CoS. + * If the number is greater than 1 then hashing is enabled. + * If number is equal to 1 then hashing is disabled. + * When hashing is enabled the queues are created by the implementation + * and application need not configure any queue to the class of service. + * When hashing is disabled application has to configure the queue to + * the class of service. + * Depening on the implementation this number might be rounded-off to + * nearest supported value (e.g power of 2) + * */ + uint32_t num_queue; + + union { + /* Mapping used when num_queue = 1, hashing is disabled in + * this case and application has to configure this queue and + * packets are delivered to this queue */ + odp_queue_t queue; + + /* Mapping used when num_queue > 1, hashing is enabled in + * this case and queues are created by the implementation */ + struct { + /** Queue parameters */ + odp_queue_param_t queue_param; + + /* Protocol header fields which are included in + * packet input hash calculation */ + odp_pktin_hash_proto_t hash_proto; + }; + }; + /* Pool associated with CoS */ + odp_pool_t pool; + + /* Drop policy associated with CoS */ + odp_cls_drop_t drop_policy; } odp_cls_cos_param_t; /** @@ -209,6 +247,23 @@ int odp_cls_capability(odp_cls_capability_t *capability); odp_cos_t odp_cls_cos_create(const char *name, odp_cls_cos_param_t *param); /** + * Queue hash result + * Returns the queue within a CoS in which a particular packet will be enqueued + * based on the packet parameters and hash protocol field configured with the + * class of service. + * + * @param cos class of service + * @param packet Packet handle + * + * @retval Returns the queue handle on which this packet will be + * enqueued. + * @retval ODP_QUEUE_INVALID for error case + * + * @note The packet has to be updated with valid header pointers L2, L3 and L4. + */ +odp_queue_t odp_cls_hash_result(odp_cos_t cos, odp_packet_t packet); + +/** * Discard a class-of-service along with all its associated resources * * @param[in] cos_id class-of-service instance. @@ -245,6 +300,31 @@ int odp_cos_queue_set(odp_cos_t cos_id, odp_queue_t queue_id); odp_queue_t odp_cos_queue(odp_cos_t cos_id); /** + * Get the number of queues linked with the specific class-of-service + * + * @param cos_id class-of-service instance. + * + * @return Number of queues linked with the class-of-service. + */ +uint32_t odp_cls_cos_num_queue(odp_cos_t cos_id); + +/** + * Get the list of queue associated with the specific class-of-service + * + * @param[in] cos_id class-of-service instance. + * + * @param[out] queue Array of queue handles associated + * with the class-of-service. + * + * @param[in] num Maximum number of queue handles to output. + * + * @return Number of queues linked with CoS + * @retval 0 on failure + */ +uint32_t odp_cls_cos_queues(odp_cos_t cos_id, odp_queue_t queue[], + uint32_t num); + +/** * Assign packet drop policy for specific class-of-service * * @param[in] cos_id class-of-service instance.