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 75E3C42AA0; Tue, 9 May 2023 08:05:25 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 6844E42D64; Tue, 9 May 2023 08:04:27 +0200 (CEST) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by mails.dpdk.org (Postfix) with ESMTP id 8A53942D64 for ; Tue, 9 May 2023 08:04:26 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1683612266; x=1715148266; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=eiG9obf1Fbth4MrssmDTqQuxMyqzvx+EsjUyp43vWm4=; b=SycQuRiGCXBw/5WWwHDhWlN6cYjnLrHV5XXnIGoJ6srdo01Ov31tFqsl rTjry3Rpp6dQI3mof/YOULhgCnODbKKHK4d869v0a6GNGVLOoO6HnU9D+ jU/8877OPLnmws1bjisA6n1gEG5+RbyntB89VyrN7McF3VYI0U9D6oPzm hjiRrGfQ529IfFSsZDx49PM6wqrKJOBYUdPHO/RvdWw3zR8GIjt9q+0kq CjQkI3TR+es9kLHTPqApg5kmB4uZ6MOONNmNqVmf3nccOGOp/HJieCmO4 nEPhOHJXDxPFfy7appVgD6QeAGu/6wW/5KgNDfWjzWElElQuKI8S6b9Qi w==; X-IronPort-AV: E=McAfee;i="6600,9927,10704"; a="351983143" X-IronPort-AV: E=Sophos;i="5.99,261,1677571200"; d="scan'208";a="351983143" Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 May 2023 23:04:26 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10704"; a="701700403" X-IronPort-AV: E=Sophos;i="5.99,261,1677571200"; d="scan'208";a="701700403" Received: from dpdk-zhirun-lmm.sh.intel.com ([10.67.119.94]) by fmsmga007.fm.intel.com with ESMTP; 08 May 2023 23:04:23 -0700 From: Zhirun Yan To: dev@dpdk.org, jerinj@marvell.com, kirankumark@marvell.com, ndabilpuram@marvell.com, stephen@networkplumber.org, pbhagavatula@marvell.com Cc: cunming.liang@intel.com, haiyue.wang@intel.com, Zhirun Yan Subject: [PATCH v6 11/15] graph: introduce graph walk by cross-core dispatch Date: Tue, 9 May 2023 15:03:43 +0900 Message-Id: <20230509060347.1237884-12-zhirun.yan@intel.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20230509060347.1237884-1-zhirun.yan@intel.com> References: <20230331040306.3143693-1-zhirun.yan@intel.com> <20230509060347.1237884-1-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 --- lib/graph/rte_graph_model_dispatch.h | 43 ++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) diff --git a/lib/graph/rte_graph_model_dispatch.h b/lib/graph/rte_graph_model_dispatch.h index 18fa7ce0ab..f35cddba31 100644 --- a/lib/graph/rte_graph_model_dispatch.h +++ b/lib/graph/rte_graph_model_dispatch.h @@ -73,6 +73,49 @@ __rte_experimental int rte_graph_model_dispatch_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; + + RTE_ASSERT(graph->parent_id != RTE_GRAPH_ID_INVALID); + if (graph->wq != NULL) + __rte_graph_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->lcore_id != graph->lcore_id) + continue; + + /* Schedule the node until all task/objs are done */ + if (node->lcore_id != RTE_MAX_LCORE && + graph->lcore_id != node->lcore_id && graph->rq != NULL && + __rte_graph_sched_node_enqueue(node, graph->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