From mboxrd@z Thu Jan 1 00:00:00 1970
Return-Path: <david.hunt@intel.com>
Received: from mga09.intel.com (mga09.intel.com [134.134.136.24])
by dpdk.org (Postfix) with ESMTP id 031FB2C2B
for <dev@dpdk.org>; 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 <david.hunt@intel.com>
To: dev@dpdk.org
Cc: bruce.richardson@intel.com,
David Hunt <david.hunt@intel.com>
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 <dev.dpdk.org>
List-Unsubscribe: <http://dpdk.org/ml/options/dev>,
<mailto:dev-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://dpdk.org/ml/archives/dev/>
List-Post: <mailto:dev@dpdk.org>
List-Help: <mailto:dev-request@dpdk.org?subject=help>
List-Subscribe: <http://dpdk.org/ml/listinfo/dev>,
<mailto:dev-request@dpdk.org?subject=subscribe>
X-List-Received-Date: Wed, 01 Mar 2017 14:47:15 -0000
Signed-off-by: David Hunt <david.hunt@intel.com>
---
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
--
2.7.4