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-rw-r--r--examples/multi_process/simple_mp/Makefile52
-rw-r--r--examples/multi_process/simple_mp/main.c160
-rw-r--r--examples/multi_process/simple_mp/mp_commands.c169
-rw-r--r--examples/multi_process/simple_mp/mp_commands.h46
4 files changed, 427 insertions, 0 deletions
diff --git a/examples/multi_process/simple_mp/Makefile b/examples/multi_process/simple_mp/Makefile
new file mode 100644
index 0000000..fb9d81d
--- /dev/null
+++ b/examples/multi_process/simple_mp/Makefile
@@ -0,0 +1,52 @@
+# BSD LICENSE
+#
+# Copyright(c) 2010-2012 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.
+#
+# version: DPDK.L.1.2.3-3
+
+ifeq ($(RTE_SDK),)
+$(error "Please define RTE_SDK environment variable")
+endif
+
+# Default target, can be overriden by command line or environment
+RTE_TARGET ?= x86_64-default-linuxapp-gcc
+
+include $(RTE_SDK)/mk/rte.vars.mk
+
+# binary name
+APP = simple_mp
+
+# all source are stored in SRCS-y
+SRCS-y := main.c mp_commands.c
+
+CFLAGS += -O3
+CFLAGS += $(WERROR_FLAGS)
+
+include $(RTE_SDK)/mk/rte.extapp.mk
diff --git a/examples/multi_process/simple_mp/main.c b/examples/multi_process/simple_mp/main.c
new file mode 100644
index 0000000..166fc80
--- /dev/null
+++ b/examples/multi_process/simple_mp/main.c
@@ -0,0 +1,160 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2012 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.
+ *
+ * version: DPDK.L.1.2.3-3
+ */
+
+/*
+ * This sample application is a simple multi-process application which
+ * demostrates sharing of queues and memory pools between processes, and
+ * using those queues/pools for communication between the processes.
+ *
+ * Application is designed to run with two processes, a primary and a
+ * secondary, and each accepts commands on the commandline, the most
+ * important of which is "send", which just sends a string to the other
+ * process.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <unistd.h>
+#include <termios.h>
+#include <sys/queue.h>
+
+#include <rte_common.h>
+#include <rte_memory.h>
+#include <rte_memzone.h>
+#include <rte_launch.h>
+#include <rte_tailq.h>
+#include <rte_eal.h>
+#include <rte_per_lcore.h>
+#include <rte_lcore.h>
+#include <rte_debug.h>
+#include <rte_atomic.h>
+#include <rte_branch_prediction.h>
+#include <rte_ring.h>
+#include <rte_log.h>
+#include <rte_mempool.h>
+#include <cmdline_rdline.h>
+#include <cmdline_parse.h>
+#include <cmdline_socket.h>
+#include <cmdline.h>
+#include "mp_commands.h"
+
+#define RTE_LOGTYPE_APP RTE_LOGTYPE_USER1
+
+#define SOCKET0 0
+
+static const char *_MSG_POOL = "MSG_POOL";
+static const char *_SEC_2_PRI = "SEC_2_PRI";
+static const char *_PRI_2_SEC = "PRI_2_SEC";
+const unsigned string_size = 64;
+
+struct rte_ring *send_ring, *recv_ring;
+struct rte_mempool *message_pool;
+volatile int quit = 0;
+
+static int
+lcore_recv(__attribute__((unused)) void *arg)
+{
+ unsigned lcore_id = rte_lcore_id();
+
+ printf("Starting core %u\n", lcore_id);
+ while (!quit){
+ void *msg;
+ if (rte_ring_dequeue(recv_ring, &msg) < 0){
+ usleep(5);
+ continue;
+ }
+ printf("core %u: Received '%s'\n", lcore_id, (char *)msg);
+ rte_mempool_put(message_pool, msg);
+ }
+
+ return 0;
+}
+
+int
+main(int argc, char **argv)
+{
+ const unsigned flags = 0;
+ const unsigned ring_size = 64;
+ const unsigned pool_size = 1024;
+ const unsigned pool_cache = 32;
+ const unsigned priv_data_sz = 0;
+
+ int ret;
+ unsigned lcore_id;
+
+ ret = rte_eal_init(argc, argv);
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE, "Cannot init EAL\n");
+
+ if (rte_eal_process_type() == RTE_PROC_PRIMARY){
+ send_ring = rte_ring_create(_PRI_2_SEC, ring_size, SOCKET0, flags);
+ recv_ring = rte_ring_create(_SEC_2_PRI, ring_size, SOCKET0, flags);
+ message_pool = rte_mempool_create(_MSG_POOL, pool_size,
+ string_size, pool_cache, priv_data_sz,
+ NULL, NULL, NULL, NULL,
+ SOCKET0, flags);
+ } else {
+ recv_ring = rte_ring_lookup(_PRI_2_SEC);
+ send_ring = rte_ring_lookup(_SEC_2_PRI);
+ message_pool = rte_mempool_lookup(_MSG_POOL);
+ }
+ if (send_ring == NULL)
+ rte_exit(EXIT_FAILURE, "Problem getting sending ring\n");
+ if (recv_ring == NULL)
+ rte_exit(EXIT_FAILURE, "Problem getting receiving ring\n");
+ if (message_pool == NULL)
+ rte_exit(EXIT_FAILURE, "Problem getting message pool\n");
+
+ RTE_LOG(INFO, APP, "Finished Process Init.\n");
+
+ /* call lcore_recv() on every slave lcore */
+ RTE_LCORE_FOREACH_SLAVE(lcore_id) {
+ rte_eal_remote_launch(lcore_recv, NULL, lcore_id);
+ }
+
+ /* call cmd prompt on master lcore */
+ struct cmdline *cl = cmdline_stdin_new(simple_mp_ctx, "\nsimple_mp > ");
+ if (cl == NULL)
+ rte_exit(EXIT_FAILURE, "Cannot create cmdline instance\n");
+ cmdline_interact(cl);
+ cmdline_stdin_exit(cl);
+
+ rte_eal_mp_wait_lcore();
+ return 0;
+}
diff --git a/examples/multi_process/simple_mp/mp_commands.c b/examples/multi_process/simple_mp/mp_commands.c
new file mode 100644
index 0000000..6e12ed3
--- /dev/null
+++ b/examples/multi_process/simple_mp/mp_commands.c
@@ -0,0 +1,169 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2012 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.
+ *
+ * version: DPDK.L.1.2.3-3
+ */
+#include <stdint.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <inttypes.h>
+#include <stdio.h>
+#include <termios.h>
+#include <errno.h>
+#include <sys/queue.h>
+
+#include <rte_common.h>
+#include <rte_memory.h>
+#include <rte_memzone.h>
+#include <rte_tailq.h>
+#include <rte_eal.h>
+#include <rte_atomic.h>
+#include <rte_branch_prediction.h>
+#include <rte_launch.h>
+#include <rte_log.h>
+#include <rte_per_lcore.h>
+#include <rte_lcore.h>
+#include <rte_ring.h>
+#include <rte_debug.h>
+#include <rte_mempool.h>
+#include <rte_string_fns.h>
+
+#include <cmdline_rdline.h>
+#include <cmdline_parse.h>
+#include <cmdline_parse_string.h>
+#include <cmdline_socket.h>
+#include <cmdline.h>
+#include "mp_commands.h"
+
+/**********************************************************/
+
+struct cmd_send_result {
+ cmdline_fixed_string_t action;
+ cmdline_fixed_string_t message;
+};
+
+static void cmd_send_parsed(void *parsed_result,
+ __attribute__((unused)) struct cmdline *cl,
+ __attribute__((unused)) void *data)
+{
+ void *msg;
+ struct cmd_send_result *res = parsed_result;
+
+ if (rte_mempool_get(message_pool, &msg) < 0)
+ rte_panic("Failed to get message buffer\n");
+ rte_snprintf((char *)msg, string_size, "%s", res->message);
+ if (rte_ring_enqueue(send_ring, msg) < 0) {
+ printf("Failed to send message - message discarded\n");
+ rte_mempool_put(message_pool, msg);
+ }
+}
+
+cmdline_parse_token_string_t cmd_send_action =
+ TOKEN_STRING_INITIALIZER(struct cmd_send_result, action, "send");
+cmdline_parse_token_string_t cmd_send_message =
+ TOKEN_STRING_INITIALIZER(struct cmd_send_result, message, NULL);
+
+cmdline_parse_inst_t cmd_send = {
+ .f = cmd_send_parsed, /* function to call */
+ .data = NULL, /* 2nd arg of func */
+ .help_str = "send a string to another process",
+ .tokens = { /* token list, NULL terminated */
+ (void *)&cmd_send_action,
+ (void *)&cmd_send_message,
+ NULL,
+ },
+};
+
+/**********************************************************/
+
+struct cmd_quit_result {
+ cmdline_fixed_string_t quit;
+};
+
+static void cmd_quit_parsed(__attribute__((unused)) void *parsed_result,
+ struct cmdline *cl,
+ __attribute__((unused)) void *data)
+{
+ quit = 1;
+ cmdline_quit(cl);
+}
+
+cmdline_parse_token_string_t cmd_quit_quit =
+ TOKEN_STRING_INITIALIZER(struct cmd_quit_result, quit, "quit");
+
+cmdline_parse_inst_t cmd_quit = {
+ .f = cmd_quit_parsed, /* function to call */
+ .data = NULL, /* 2nd arg of func */
+ .help_str = "close the application",
+ .tokens = { /* token list, NULL terminated */
+ (void *)&cmd_quit_quit,
+ NULL,
+ },
+};
+
+/**********************************************************/
+
+struct cmd_help_result {
+ cmdline_fixed_string_t help;
+};
+
+static void cmd_help_parsed(__attribute__((unused)) void *parsed_result,
+ struct cmdline *cl,
+ __attribute__((unused)) void *data)
+{
+ cmdline_printf(cl, "Simple demo example of multi-process in RTE\n\n"
+ "This is a readline-like interface that can be used to\n"
+ "send commands to the simple app. Commands supported are:\n\n"
+ "- send [string]\n" "- help\n" "- quit\n\n");
+}
+
+cmdline_parse_token_string_t cmd_help_help =
+ TOKEN_STRING_INITIALIZER(struct cmd_help_result, help, "help");
+
+cmdline_parse_inst_t cmd_help = {
+ .f = cmd_help_parsed, /* function to call */
+ .data = NULL, /* 2nd arg of func */
+ .help_str = "show help",
+ .tokens = { /* token list, NULL terminated */
+ (void *)&cmd_help_help,
+ NULL,
+ },
+};
+
+/****** CONTEXT (list of instruction) */
+cmdline_parse_ctx_t simple_mp_ctx[] = {
+ (cmdline_parse_inst_t *)&cmd_send,
+ (cmdline_parse_inst_t *)&cmd_quit,
+ (cmdline_parse_inst_t *)&cmd_help,
+ NULL,
+};
diff --git a/examples/multi_process/simple_mp/mp_commands.h b/examples/multi_process/simple_mp/mp_commands.h
new file mode 100644
index 0000000..bdb25c2
--- /dev/null
+++ b/examples/multi_process/simple_mp/mp_commands.h
@@ -0,0 +1,46 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2012 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.
+ *
+ * version: DPDK.L.1.2.3-3
+ */
+
+#ifndef _SIMPLE_MP_COMMANDS_H_
+#define _SIMPLE_MP_COMMANDS_H_
+
+extern const unsigned string_size;
+extern struct rte_ring *send_ring;
+extern struct rte_mempool *message_pool;
+extern volatile int quit;
+
+extern cmdline_parse_ctx_t simple_mp_ctx[];
+
+#endif /* _SIMPLE_MP_COMMANDS_H_ */