From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id D070642CB8; Wed, 14 Jun 2023 18:15:02 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 69ED142D63; Wed, 14 Jun 2023 18:13:54 +0200 (CEST) Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by mails.dpdk.org (Postfix) with ESMTP id 426C742D5C for ; Wed, 14 Jun 2023 18:13:50 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1686759230; x=1718295230; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=c6zCu+fM4HKxvfHyGkPrVMkGPjXkmxBheqj7TDyUG50=; b=ad02tpgQQVZaF/+gzURQ05MoWuQ0/aWDooWTz/E2rARKiy3vQfJ4Zpds KlOTOIqotFh77xkzR/75/Uaj5d8eJieQBwqtsastt4vGGStd2+XTmzVVo sAU3UxgRjMyCM22pzo1nTFnhUELZrFH6lzrcLRp2fmVmIkBh9TJQL9bAW zSHtwnuCrRFPtEuq02CIO/NJqbo7/Fo91RQyZIZxyXhBUSMl8mQXCcRer UVA6Knx4n6tpLWKY+2VZi4nyF3g6UJlH0TyRkl/QuncPptR2ZdUG99aha lFM1HWF75ei6FMLU6m3ma/zWsBzazj2DaKaOLFt/Gqh635IzXzr6kuaFr A==; X-IronPort-AV: E=McAfee;i="6600,9927,10741"; a="358658055" X-IronPort-AV: E=Sophos;i="6.00,243,1681196400"; d="scan'208";a="358658055" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Jun 2023 09:08:49 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10741"; a="662449578" X-IronPort-AV: E=Sophos;i="6.00,243,1681196400"; d="scan'208";a="662449578" Received: from dpdk-zhirun-lmm.sh.intel.com ([10.67.119.94]) by orsmga003.jf.intel.com with ESMTP; 14 Jun 2023 09:08:46 -0700 From: Zhirun Yan To: dev@dpdk.org, jerinj@marvell.com, kirankumark@marvell.com, ndabilpuram@marvell.com, stephen@networkplumber.org, pbhagavatula@marvell.com, jerinjacobk@gmail.com, david.marchand@redhat.com Cc: cunming.liang@intel.com, haiyue.wang@intel.com, mattias.ronnblom@ericsson.com, Zhirun Yan Subject: [PATCH v15 12/16] graph: introduce graph walk by cross-core dispatch Date: Wed, 14 Jun 2023 23:58:58 +0800 Message-Id: <20230614155902.1530963-13-zhirun.yan@intel.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20230614155902.1530963-1-zhirun.yan@intel.com> References: <20230613140445.2155542-1-zhirun.yan@intel.com> <20230614155902.1530963-1-zhirun.yan@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 This patch introduces the task scheduler mechanism to enable dispatching tasks to another worker cores. Currently, there is only a local work queue for one graph to walk. We introduce a scheduler worker queue in each worker core for dispatching tasks. It will perform the walk on scheduler work queue first, then handle the local work queue. Signed-off-by: Haiyue Wang Signed-off-by: Cunming Liang Signed-off-by: Zhirun Yan Acked-by: Jerin Jacob Acked-by: Pavan Nikhilesh --- lib/graph/rte_graph_model_mcore_dispatch.h | 43 ++++++++++++++++++++++ 1 file changed, 43 insertions(+) diff --git a/lib/graph/rte_graph_model_mcore_dispatch.h b/lib/graph/rte_graph_model_mcore_dispatch.h index 6163f96c37..79c3ad5b40 100644 --- a/lib/graph/rte_graph_model_mcore_dispatch.h +++ b/lib/graph/rte_graph_model_mcore_dispatch.h @@ -83,6 +83,49 @@ __rte_experimental int rte_graph_model_mcore_dispatch_node_lcore_affinity_set(const char *name, unsigned int lcore_id); +/** + * Perform graph walk on the circular buffer and invoke the process function + * of the nodes and collect the stats. + * + * @param graph + * Graph pointer returned from rte_graph_lookup function. + * + * @see rte_graph_lookup() + */ +__rte_experimental +static inline void +rte_graph_walk_mcore_dispatch(struct rte_graph *graph) +{ + const rte_graph_off_t *cir_start = graph->cir_start; + const rte_node_t mask = graph->cir_mask; + uint32_t head = graph->head; + struct rte_node *node; + + if (graph->dispatch.wq != NULL) + __rte_graph_mcore_dispatch_sched_wq_process(graph); + + while (likely(head != graph->tail)) { + node = (struct rte_node *)RTE_PTR_ADD(graph, cir_start[(int32_t)head++]); + + /* skip the src nodes which not bind with current worker */ + if ((int32_t)head < 0 && node->dispatch.lcore_id != graph->dispatch.lcore_id) + continue; + + /* Schedule the node until all task/objs are done */ + if (node->dispatch.lcore_id != RTE_MAX_LCORE && + graph->dispatch.lcore_id != node->dispatch.lcore_id && + graph->dispatch.rq != NULL && + __rte_graph_mcore_dispatch_sched_node_enqueue(node, graph->dispatch.rq)) + continue; + + __rte_node_process(graph, node); + + head = likely((int32_t)head > 0) ? head & mask : head; + } + + graph->tail = 0; +} + #ifdef __cplusplus } #endif -- 2.37.2