Imported Upstream version 17.05

[deb_dpdk.git] / examples / server_node_efd / shared / common.h

diff --git a/examples/server_node_efd/shared/common.h b/examples/server_node_efd/shared/common.h
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+++ b/examples/server_node_efd/shared/common.h
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+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2016-2017 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _COMMON_H_
+#define _COMMON_H_
+
+#include <rte_hash_crc.h>
+#include <rte_hash.h>
+
+#define MAX_NODES             16
+/*
+ * Shared port info, including statistics information for display by server.
+ * Structure will be put in a memzone.
+ * - All port id values share one cache line as this data will be read-only
+ * during operation.
+ * - All rx statistic values share cache lines, as this data is written only
+ * by the server process. (rare reads by stats display)
+ * - The tx statistics have values for all ports per cache line, but the stats
+ * themselves are written by the nodes, so we have a distinct set, on different
+ * cache lines for each node to use.
+ */
+struct rx_stats {
+       uint64_t rx[RTE_MAX_ETHPORTS];
+} __rte_cache_aligned;
+
+struct tx_stats {
+       uint64_t tx[RTE_MAX_ETHPORTS];
+       uint64_t tx_drop[RTE_MAX_ETHPORTS];
+} __rte_cache_aligned;
+
+struct filter_stats {
+       uint64_t drop;
+       uint64_t passed;
+} __rte_cache_aligned;
+
+struct shared_info {
+       uint8_t num_nodes;
+       uint8_t num_ports;
+       uint32_t num_flows;
+       uint8_t id[RTE_MAX_ETHPORTS];
+       struct rx_stats rx_stats;
+       struct tx_stats tx_stats[MAX_NODES];
+       struct filter_stats filter_stats[MAX_NODES];
+};
+
+/* define common names for structures shared between server and node */
+#define MP_NODE_RXQ_NAME "MProc_Node_%u_RX"
+#define PKTMBUF_POOL_NAME "MProc_pktmbuf_pool"
+#define MZ_SHARED_INFO "MProc_shared_info"
+
+/*
+ * Given the rx queue name template above, get the queue name
+ */
+static inline const char *
+get_rx_queue_name(unsigned int id)
+{
+       /*
+        * Buffer for return value. Size calculated by %u being replaced
+        * by maximum 3 digits (plus an extra byte for safety)
+        */
+       static char buffer[sizeof(MP_NODE_RXQ_NAME) + 2];
+
+       snprintf(buffer, sizeof(buffer) - 1, MP_NODE_RXQ_NAME, id);
+       return buffer;
+}
+
+#define RTE_LOGTYPE_APP RTE_LOGTYPE_USER1
+
+#endif