all commits for a clean git history

dpdk/examples/multi_process/client_server_mp/shared/common.h

@@ -0,0 +1,58 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2014 Intel Corporation
+ */
+
+#ifndef _COMMON_H_
+#define _COMMON_H_
+
+#define MAX_CLIENTS             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 clients, so we have a distinct set, on different
+ * cache lines for each client 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 port_info {
+	uint16_t num_ports;
+	uint16_t id[RTE_MAX_ETHPORTS];
+	volatile struct rx_stats rx_stats;
+	volatile struct tx_stats tx_stats[MAX_CLIENTS];
+};
+
+/* define common names for structures shared between server and client */
+#define MP_CLIENT_RXQ_NAME "MProc_Client_%u_RX"
+#define PKTMBUF_POOL_NAME "MProc_pktmbuf_pool"
+#define MZ_PORT_INFO "MProc_port_info"
+
+/*
+ * Given the rx queue name template above, get the queue name
+ */
+static inline const char *
+get_rx_queue_name(uint8_t 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_CLIENT_RXQ_NAME) + 2];
+
+	snprintf(buffer, sizeof(buffer), MP_CLIENT_RXQ_NAME, id);
+	return buffer;
+}
+
+#define RTE_LOGTYPE_APP RTE_LOGTYPE_USER1
+
+#endif