From patchwork Wed Mar 1 07:47:20 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Hunt, David" X-Patchwork-Id: 21000 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 D2A6DD59A; Wed, 1 Mar 2017 15:47:33 +0100 (CET) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by dpdk.org (Postfix) with ESMTP id 031FB2C2B for ; Wed, 1 Mar 2017 15:47:14 +0100 (CET) Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 01 Mar 2017 06:47:08 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos; i="5.35,226,1484035200"; d="scan'208"; a="1117076488" Received: from silpixa00397515.ir.intel.com (HELO silpixa00397515.ger.corp.intel.com) ([10.237.223.14]) by fmsmga001.fm.intel.com with ESMTP; 01 Mar 2017 06:47:07 -0800 From: David Hunt To: dev@dpdk.org Cc: bruce.richardson@intel.com, David Hunt Date: Wed, 1 Mar 2017 07:47:20 +0000 Message-Id: <1488354455-142764-4-git-send-email-david.hunt@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1488354455-142764-1-git-send-email-david.hunt@intel.com> References: <1487647073-129064-2-git-send-email-david.hunt@intel.com> <1488354455-142764-1-git-send-email-david.hunt@intel.com> Subject: [dpdk-dev] [PATCH v8 03/18] lib: add new burst oriented distributor structs X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 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" Signed-off-by: David Hunt --- lib/librte_distributor/rte_distributor_private.h | 56 ++++++++++++++++++++++++ 1 file changed, 56 insertions(+) diff --git a/lib/librte_distributor/rte_distributor_private.h b/lib/librte_distributor/rte_distributor_private.h index 6d72f1c..d3a470e 100644 --- a/lib/librte_distributor/rte_distributor_private.h +++ b/lib/librte_distributor/rte_distributor_private.h @@ -129,6 +129,62 @@ struct rte_distributor { struct rte_distributor_returned_pkts returns; }; +/* All different signature compare functions */ +enum rte_distributor_match_function { + RTE_DIST_MATCH_SCALAR = 0, + RTE_DIST_MATCH_VECTOR, + RTE_DIST_NUM_MATCH_FNS +}; + +/** + * Buffer structure used to pass the pointer data between cores. This is cache + * line aligned, but to improve performance and prevent adjacent cache-line + * prefetches of buffers for other workers, e.g. when worker 1's buffer is on + * the next cache line to worker 0, we pad this out to two cache lines. + * We can pass up to 8 mbufs at a time in one cacheline. + * There is a separate cacheline for returns in the burst API. + */ +struct rte_distributor_buffer_v1705 { + volatile int64_t bufptr64[RTE_DIST_BURST_SIZE] + __rte_cache_aligned; /* <= outgoing to worker */ + + int64_t pad1 __rte_cache_aligned; /* <= one cache line */ + + volatile int64_t retptr64[RTE_DIST_BURST_SIZE] + __rte_cache_aligned; /* <= incoming from worker */ + + int64_t pad2 __rte_cache_aligned; /* <= one cache line */ + + int count __rte_cache_aligned; /* <= number of current mbufs */ +}; + +struct rte_distributor_v1705 { + TAILQ_ENTRY(rte_distributor) next; /**< Next in list. */ + + char name[RTE_DISTRIBUTOR_NAMESIZE]; /**< Name of the ring. */ + unsigned int num_workers; /**< Number of workers polling */ + unsigned int alg_type; /**< Number of alg types */ + + /**> + * First cache line in the this array are the tags inflight + * on the worker core. Second cache line are the backlog + * that are going to go to the worker core. + */ + uint16_t in_flight_tags[RTE_DISTRIB_MAX_WORKERS][RTE_DIST_BURST_SIZE*2] + __rte_cache_aligned; + + struct rte_distributor_backlog backlog[RTE_DISTRIB_MAX_WORKERS] + __rte_cache_aligned; + + struct rte_distributor_buffer_v1705 bufs[RTE_DISTRIB_MAX_WORKERS]; + + struct rte_distributor_returned_pkts returns; + + enum rte_distributor_match_function dist_match_fn; + + struct rte_distributor *d_v20; +}; + #ifdef __cplusplus } #endif