diff mbox

[PATCHv9,8/8] linux-generic: internal ipc_pktio test

Message ID 1444391944-20772-9-git-send-email-maxim.uvarov@linaro.org
State New
Headers show

Commit Message

Maxim Uvarov Oct. 9, 2015, 11:59 a.m. UTC
2 example ipc pktio applications create ipc pktio to each other and do
packet transfer, validation magic numbers and packets sequence counters
inside it.

Signed-off-by: Maxim Uvarov <maxim.uvarov@linaro.org>
---
 platform/linux-generic/Makefile.am                 |   1 +
 platform/linux-generic/m4/configure.m4             |   3 +-
 platform/linux-generic/test/Makefile.am            |   3 +-
 platform/linux-generic/test/pktio_ipc/.gitignore   |   1 +
 platform/linux-generic/test/pktio_ipc/Makefile.am  |  15 ++
 platform/linux-generic/test/pktio_ipc/ipc_common.c | 150 ++++++++++++
 platform/linux-generic/test/pktio_ipc/ipc_common.h |  71 ++++++
 platform/linux-generic/test/pktio_ipc/pktio_ipc1.c | 268 +++++++++++++++++++++
 platform/linux-generic/test/pktio_ipc/pktio_ipc2.c | 142 +++++++++++
 .../linux-generic/test/pktio_ipc/pktio_ipc_run     |  55 +++++
 10 files changed, 707 insertions(+), 2 deletions(-)
 create mode 100644 platform/linux-generic/test/pktio_ipc/.gitignore
 create mode 100644 platform/linux-generic/test/pktio_ipc/Makefile.am
 create mode 100644 platform/linux-generic/test/pktio_ipc/ipc_common.c
 create mode 100644 platform/linux-generic/test/pktio_ipc/ipc_common.h
 create mode 100644 platform/linux-generic/test/pktio_ipc/pktio_ipc1.c
 create mode 100644 platform/linux-generic/test/pktio_ipc/pktio_ipc2.c
 create mode 100755 platform/linux-generic/test/pktio_ipc/pktio_ipc_run
diff mbox

Patch

diff --git a/platform/linux-generic/Makefile.am b/platform/linux-generic/Makefile.am
index 71353dd..6fe2f1a 100644
--- a/platform/linux-generic/Makefile.am
+++ b/platform/linux-generic/Makefile.am
@@ -5,6 +5,7 @@  include $(top_srcdir)/platform/Makefile.inc
 
 AM_CFLAGS +=  -I$(srcdir)/include
 AM_CFLAGS +=  -I$(top_srcdir)/include
+AM_CFLAGS +=  -I$(top_srcdir)/helper
 AM_CFLAGS +=  -I$(top_srcdir)/helper/include
 
 include_HEADERS = \
diff --git a/platform/linux-generic/m4/configure.m4 b/platform/linux-generic/m4/configure.m4
index 9658274..3a2d743 100644
--- a/platform/linux-generic/m4/configure.m4
+++ b/platform/linux-generic/m4/configure.m4
@@ -21,4 +21,5 @@  m4_include([platform/linux-generic/m4/odp_openssl.m4])
 
 AC_CONFIG_FILES([platform/linux-generic/Makefile
 		 platform/linux-generic/test/Makefile
-		 platform/linux-generic/test/pktio/Makefile])
+		 platform/linux-generic/test/pktio/Makefile
+		 platform/linux-generic/test/pktio_ipc/Makefile])
diff --git a/platform/linux-generic/test/Makefile.am b/platform/linux-generic/test/Makefile.am
index 7d1ce1b..db98d28 100644
--- a/platform/linux-generic/test/Makefile.am
+++ b/platform/linux-generic/test/Makefile.am
@@ -1,10 +1,11 @@ 
 include $(top_srcdir)/test/Makefile.inc
 TESTS_ENVIRONMENT += TEST_DIR=${top_builddir}/test/validation
 
-ODP_MODULES = pktio
+ODP_MODULES = pktio pktio_ipc
 
 if test_vald
 TESTS = pktio/pktio_run \
+	pktio_ipc/pktio_ipc_run \
 	${top_builddir}/test/validation/buffer/buffer_main$(EXEEXT) \
 	${top_builddir}/test/validation/classification/classification_main$(EXEEXT) \
 	${top_builddir}/test/validation/cpumask/cpumask_main$(EXEEXT) \
diff --git a/platform/linux-generic/test/pktio_ipc/.gitignore b/platform/linux-generic/test/pktio_ipc/.gitignore
new file mode 100644
index 0000000..d2a7ce2
--- /dev/null
+++ b/platform/linux-generic/test/pktio_ipc/.gitignore
@@ -0,0 +1 @@ 
+pktio_ipc
diff --git a/platform/linux-generic/test/pktio_ipc/Makefile.am b/platform/linux-generic/test/pktio_ipc/Makefile.am
new file mode 100644
index 0000000..adf6294
--- /dev/null
+++ b/platform/linux-generic/test/pktio_ipc/Makefile.am
@@ -0,0 +1,15 @@ 
+include $(top_srcdir)/test/Makefile.inc
+TESTS_ENVIRONMENT += TEST_DIR=${top_builddir}/test/validation
+
+bin_PROGRAMS = pktio_ipc1\
+		pktio_ipc2
+
+pktio_ipc1_CFLAGS = $(AM_CFLAGS) -I${top_srcdir}/example
+pktio_ipc1_LDFLAGS = $(AM_LDFLAGS) -static
+pktio_ipc2_CFLAGS = $(AM_CFLAGS) -I${top_srcdir}/example
+pktio_ipc2_LDFLAGS = $(AM_LDFLAGS) -static
+
+noinst_HEADERS = $(top_srcdir)/test/test_debug.h
+
+dist_pktio_ipc1_SOURCES = pktio_ipc1.c ipc_common.c
+dist_pktio_ipc2_SOURCES = pktio_ipc2.c ipc_common.c
diff --git a/platform/linux-generic/test/pktio_ipc/ipc_common.c b/platform/linux-generic/test/pktio_ipc/ipc_common.c
new file mode 100644
index 0000000..7a84b07
--- /dev/null
+++ b/platform/linux-generic/test/pktio_ipc/ipc_common.c
@@ -0,0 +1,150 @@ 
+/* Copyright (c) 2015, Linaro Limited
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ */
+
+#include "ipc_common.h"
+
+/** Application argument */
+char *pktio_name;
+
+/** Run time in seconds */
+int run_time_sec;
+
+int ipc_odp_packet_sendall(odp_pktio_t pktio,
+			   odp_packet_t pkt_tbl[], int num)
+{
+	int ret;
+	int sent = 0;
+	uint64_t start_cycle;
+	uint64_t diff;
+
+	start_cycle = odp_time_cycles();
+
+	while (sent != num) {
+		ret = odp_pktio_send(pktio, &pkt_tbl[sent], num - sent);
+		if (ret < 0)
+			return -1;
+
+		sent += ret;
+
+		diff  = odp_time_diff_cycles(start_cycle, odp_time_cycles());
+		if (odp_time_ns_to_cycles(3 * ODP_TIME_SEC) < diff)
+			return -1;
+	}
+
+	return 0;
+}
+
+/**
+ * Create a pktio handle.
+ *
+ * @param dev Name of device to open
+ * @param pool Pool to associate with device for packet RX/TX
+ *
+ * @return The handle of the created pktio object.
+ * @retval ODP_PKTIO_INVALID if the create fails.
+ */
+odp_pktio_t create_pktio(const char *dev EXAMPLE_UNUSED, odp_pool_t pool)
+{
+	odp_pktio_param_t pktio_param;
+	odp_pktio_t ipc_pktio;
+
+	memset(&pktio_param, 0, sizeof(pktio_param));
+	pktio_param.in_mode = ODP_PKTIN_MODE_SCHED;
+
+	printf("pid: %d, create IPC pktio\n", getpid());
+	ipc_pktio = odp_pktio_open("ipc_pktio", pool, &pktio_param);
+	if (ipc_pktio == ODP_PKTIO_INVALID)
+		EXAMPLE_ABORT("Error: ipc pktio create failed.\n");
+	odp_pktio_start(ipc_pktio);
+	return ipc_pktio;
+}
+
+/**
+ * Parse and store the command line arguments
+ *
+ * @param argc       argument count
+ * @param argv[]     argument vector
+ * @param appl_args  Store application arguments here
+ */
+void parse_args(int argc, char *argv[])
+{
+	int opt;
+	int long_index;
+	static struct option longopts[] = {
+		{"time", required_argument, NULL, 't'},
+		{"help", no_argument, NULL, 'h'},		/* return 'h' */
+		{NULL, 0, NULL, 0}
+	};
+
+	run_time_sec = 0; /* loop forever if time to run is 0 */
+
+	while (1) {
+		opt = getopt_long(argc, argv, "+t:h",
+				  longopts, &long_index);
+
+		if (opt == -1)
+			break;	/* No more options */
+
+		switch (opt) {
+		case 't':
+			run_time_sec = atoi(optarg);
+			break;
+		case 'h':
+			usage(argv[0]);
+			exit(EXIT_SUCCESS);
+			break;
+
+		default:
+			break;
+		}
+	}
+
+	optind = 1;		/* reset 'extern optind' from the getopt lib */
+}
+
+/**
+ * Print system and application info
+ */
+void print_info(char *progname)
+{
+	printf("\n"
+	       "ODP system info\n"
+	       "---------------\n"
+	       "ODP API version: %s\n"
+	       "CPU model:       %s\n"
+	       "CPU freq (hz):   %" PRIu64 "\n"
+	       "Cache line size: %i\n"
+	       "CPU count:       %i\n"
+	       "\n",
+	       odp_version_api_str(), odp_sys_cpu_model_str(), odp_sys_cpu_hz(),
+	       odp_sys_cache_line_size(), odp_cpu_count());
+
+	printf("Running ODP appl: \"%s\"\n"
+	       "-----------------\n"
+	       "Using IF:        %s\n",
+	       progname, pktio_name);
+	printf("\n\n");
+	fflush(NULL);
+}
+
+/**
+ * Prinf usage information
+ */
+void usage(char *progname)
+{
+	printf("\n"
+	       "Usage: %s OPTIONS\n"
+	       "  E.g. %s -t seconds\n"
+	       "\n"
+	       "OpenDataPlane linux-generic ipc test application.\n"
+	       "\n"
+	       "Optional OPTIONS\n"
+	       "  -h, --help           Display help and exit.\n"
+	       "  -t, --time           Time to run in seconds.\n"
+	       "\n", NO_PATH(progname), NO_PATH(progname)
+	    );
+}
+
diff --git a/platform/linux-generic/test/pktio_ipc/ipc_common.h b/platform/linux-generic/test/pktio_ipc/ipc_common.h
new file mode 100644
index 0000000..e71a489
--- /dev/null
+++ b/platform/linux-generic/test/pktio_ipc/ipc_common.h
@@ -0,0 +1,71 @@ 
+/* Copyright (c) 2015, Linaro Limited
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ */
+
+#define _POSIX_C_SOURCE 200809L
+#include <stdlib.h>
+#include <string.h>
+#include <getopt.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <signal.h>
+#include <sys/wait.h>
+
+#include <example_debug.h>
+
+#include <odp.h>
+#include <odp/helper/linux.h>
+#include <odp/helper/eth.h>
+#include <odp/helper/ip.h>
+#include <odp/helper/udp.h>
+
+/** @def SHM_PKT_POOL_SIZE
+ * @brief Size of the shared memory block
+ */
+#define SHM_PKT_POOL_SIZE      (512 * 2048)
+
+/** @def SHM_PKT_POOL_BUF_SIZE
+ * @brief Buffer size of the packet pool buffer
+ */
+#define SHM_PKT_POOL_BUF_SIZE  1856
+
+/** @def MAX_PKT_BURST
+ * @brief Maximum number of packet bursts
+ */
+#define MAX_PKT_BURST          16
+
+/** Get rid of path in filename - only for unix-type paths using '/' */
+#define NO_PATH(file_name) (strrchr((file_name), '/') ? \
+			    strrchr((file_name), '/') + 1 : (file_name))
+
+#define TEST_SEQ_MAGIC		0x92749451
+#define TEST_SEQ_MAGIC_2	0x81638340
+
+#define TEST_ALLOC_MAGIC	0x1234adcd
+
+/** magic number and sequence at start of packet payload */
+typedef struct ODP_PACKED {
+	uint32be_t magic;
+	uint32be_t seq;
+} pkt_head_t;
+
+/** magic number at end of packet payload */
+typedef struct ODP_PACKED {
+	uint32be_t magic;
+} pkt_tail_t;
+
+/** Application argument */
+char *pktio_name;
+
+/** Run time in seconds */
+int run_time_sec;
+
+/* helper funcs */
+void parse_args(int argc, char *argv[]);
+void print_info(char *progname);
+void usage(char *progname);
+odp_pktio_t create_pktio(const char *dev, odp_pool_t pool);
+int ipc_odp_packet_sendall(odp_pktio_t pktio,
+			   odp_packet_t pkt_tbl[], int num);
diff --git a/platform/linux-generic/test/pktio_ipc/pktio_ipc1.c b/platform/linux-generic/test/pktio_ipc/pktio_ipc1.c
new file mode 100644
index 0000000..d2d6038
--- /dev/null
+++ b/platform/linux-generic/test/pktio_ipc/pktio_ipc1.c
@@ -0,0 +1,268 @@ 
+/* Copyright (c) 2015, Linaro Limited
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ */
+
+#include "ipc_common.h"
+
+/**
+ * @file
+ * @example pktio_ipc1.c  ODP IPC example application.
+ *		This application works in pair with pktio_ipc2 application.
+ *		It opens ipc pktio, allocates packets, sets magic number and
+ *		sends packets to ipc pktio. Then app reads packets and checks
+ *		that magic number was properly updated and there is no packet
+ *		loss (i.e. sequesce counter continiusly incrementing.)
+ */
+
+/**
+ * Packet IO loopback worker thread using bursts from/to IO resources
+ *
+ * @param arg  thread arguments of type 'thread_args_t *'
+ */
+static int pktio_run_loop(odp_pool_t pool)
+{
+	int thr;
+	int pkts;
+	odp_pktio_t ipc_pktio;
+	odp_packet_t pkt_tbl[MAX_PKT_BURST];
+	uint64_t cnt = 0; /* increasing counter on each send packet */
+	uint64_t cnt_recv = 0; /* increasing counter to validate
+				  cnt on receive */
+	uint64_t stat_pkts = 0;
+	uint64_t stat_pkts_alloc = 0;
+	uint64_t stat_pkts_prev = 0;
+	uint64_t stat_errors = 0;
+	uint64_t start_cycle;
+	uint64_t current_cycle;
+	uint64_t cycle;
+	uint64_t diff;
+	uint64_t onesec_cycles;
+
+	thr = odp_thread_id();
+
+	ipc_pktio = odp_pktio_lookup("ipc_pktio");
+	if (ipc_pktio == ODP_PKTIO_INVALID) {
+		EXAMPLE_ERR("  [%02i] Error: lookup of pktio %s failed\n",
+			    thr, "ipc_pktio");
+		return -2;
+	}
+	printf("  [%02i] looked up ipc_pktio:%02" PRIu64 ", burst mode\n",
+	       thr, odp_pktio_to_u64(ipc_pktio));
+
+	onesec_cycles = odp_time_ns_to_cycles(ODP_TIME_SEC);
+	start_cycle = odp_time_cycles();
+	current_cycle = start_cycle;
+
+	/* packets loop */
+	for (;;) {
+		int i;
+		int ret;
+
+		/* 1. exit loop if time specified */
+		cycle = odp_time_cycles();
+		if (run_time_sec) {
+			diff  = odp_time_diff_cycles(start_cycle, cycle);
+			if (odp_time_ns_to_cycles(run_time_sec *
+						  ODP_TIME_SEC) < diff)
+				break;
+		}
+
+		/* 2. Receive packets back from ipc_pktio, validate magic
+		 *    number sequence counter and free that packet
+		 */
+		while (1) {
+			pkts = odp_pktio_recv(ipc_pktio, pkt_tbl,
+					      MAX_PKT_BURST);
+			if (pkts <= 0)
+				break;
+
+			for (i = 0; i < pkts; i++) {
+				odp_packet_t pkt = pkt_tbl[i];
+				pkt_head_t head;
+				pkt_tail_t tail;
+				size_t off;
+
+				off = odp_packet_l4_offset(pkt);
+				if (off ==  ODP_PACKET_OFFSET_INVALID)
+					EXAMPLE_ABORT("invalid l4 offset\n");
+
+				off += ODPH_UDPHDR_LEN;
+				ret = odp_packet_copydata_out(pkt, off,
+							      sizeof(head),
+							      &head);
+				if (ret) {
+					stat_errors++;
+					odp_packet_free(pkt);
+					EXAMPLE_DBG("error\n");
+					continue;
+				}
+
+				if (head.magic == TEST_ALLOC_MAGIC) {
+					stat_pkts_alloc++;
+					odp_packet_free(pkt);
+					continue;
+				}
+
+				if (head.magic != TEST_SEQ_MAGIC_2) {
+					stat_errors++;
+					odp_packet_free(pkt);
+					EXAMPLE_DBG("error\n");
+					continue;
+				}
+
+				off = odp_packet_len(pkt) - sizeof(pkt_tail_t);
+				ret = odp_packet_copydata_out(pkt, off,
+							      sizeof(tail),
+							      &tail);
+				if (ret) {
+					stat_errors++;
+					odp_packet_free(pkt);
+					continue;
+				}
+
+				if (tail.magic != TEST_SEQ_MAGIC) {
+					stat_errors++;
+					odp_packet_free(pkt);
+					continue;
+				}
+
+				cnt_recv++;
+
+				if (head.seq != cnt_recv) {
+					stat_errors++;
+					odp_packet_free(pkt);
+					EXAMPLE_DBG("head.seq %d - "
+						    "cnt_recv %" PRIu64 ""
+						    " = %" PRIu64 "\n",
+						    head.seq, cnt_recv,
+						    head.seq - cnt_recv);
+					cnt_recv = head.seq;
+					continue;
+				}
+
+				stat_pkts++;
+				odp_packet_free(pkt);
+			}
+		}
+
+		/* 3. emulate that pkts packets were received  */
+		odp_random_data((uint8_t *)&pkts, sizeof(pkts), 0);
+		pkts = ((pkts & 0xffff) % MAX_PKT_BURST) + 1;
+
+		for (i = 0; i < pkts; i++) {
+			odp_packet_t pkt;
+
+			pkt = odp_packet_alloc(pool, SHM_PKT_POOL_BUF_SIZE);
+			if (pkt == ODP_PACKET_INVALID) {
+				pkts = i;
+				EXAMPLE_DBG("unable to alloc packet pkts %d\n",
+					    pkts);
+				sleep(3);
+				break;
+			}
+			odp_packet_l4_offset_set(pkt, 30);
+
+			pkt_tbl[i] = pkt;
+		}
+		pkts = i;
+
+		/* 4. Copy counter and magic numbers to that packets */
+		for (i = 0; i < pkts; i++) {
+			pkt_head_t head;
+			pkt_tail_t tail;
+			size_t off;
+			odp_packet_t pkt = pkt_tbl[i];
+
+			off = odp_packet_l4_offset(pkt);
+			if (off == ODP_PACKET_OFFSET_INVALID)
+				EXAMPLE_ABORT("packet L4 offset not set");
+
+			head.magic = TEST_SEQ_MAGIC;
+			head.seq   = cnt++;
+
+			off += ODPH_UDPHDR_LEN;
+			ret = odp_packet_copydata_in(pkt, off, sizeof(head),
+						     &head);
+			if (ret)
+				EXAMPLE_ABORT("unable to copy in head data");
+
+			tail.magic = TEST_SEQ_MAGIC;
+			off = odp_packet_len(pkt) - sizeof(pkt_tail_t);
+			ret = odp_packet_copydata_in(pkt, off, sizeof(tail),
+						     &tail);
+			if (ret)
+				EXAMPLE_ABORT("unable to copy in tail data");
+		}
+
+		/* 5. Send packets to ipc_pktio */
+		ret =  ipc_odp_packet_sendall(ipc_pktio, pkt_tbl, pkts);
+		if (ret < 0)
+			EXAMPLE_DBG("error sending to ipc pktio\n");
+
+		/* 6. Print stats */
+		cycle = odp_time_cycles();
+		diff  = odp_time_diff_cycles(current_cycle, cycle);
+		if (onesec_cycles < diff) {
+			current_cycle = cycle;
+			printf("\rpkts:  %" PRIu64 ", alloc  %" PRIu64 ","
+			       " errors %" PRIu64 ", pps  %" PRIu64 ".",
+			       stat_pkts, stat_pkts_alloc, stat_errors,
+			       (stat_pkts + stat_pkts_alloc - stat_pkts_prev));
+			fflush(stdout);
+			stat_pkts_prev = stat_pkts + stat_pkts_alloc;
+		}
+	}
+
+	return stat_errors > 10 ? -1 : 0;
+}
+
+/**
+ * ODP packet example main function
+ */
+int main(int argc, char *argv[])
+{
+	odp_pool_t pool;
+	odp_pool_param_t params;
+	int ret;
+
+	/* Parse and store the application arguments */
+	parse_args(argc, argv);
+
+	/* Init ODP before calling anything else */
+	if (odp_init_global(NULL, NULL)) {
+		EXAMPLE_ERR("Error: ODP global init failed.\n");
+		exit(EXIT_FAILURE);
+	}
+
+	/* Init this thread */
+	if (odp_init_local(ODP_THREAD_CONTROL)) {
+		EXAMPLE_ERR("Error: ODP local init failed.\n");
+		exit(EXIT_FAILURE);
+	}
+
+	/* Print both system and application information */
+	print_info(NO_PATH(argv[0]));
+
+	/* Create packet pool */
+	memset(&params, 0, sizeof(params));
+	params.pkt.seg_len = SHM_PKT_POOL_BUF_SIZE;
+	params.pkt.len     = SHM_PKT_POOL_BUF_SIZE;
+	params.pkt.num     = SHM_PKT_POOL_SIZE / SHM_PKT_POOL_BUF_SIZE;
+	params.type        = ODP_POOL_PACKET;
+
+	pool = odp_pool_create("packet_pool", &params);
+	if (pool == ODP_POOL_INVALID) {
+		EXAMPLE_ERR("Error: packet pool create failed.\n");
+		exit(EXIT_FAILURE);
+	}
+
+	odp_pool_print(pool);
+
+	create_pktio(pktio_name, pool);
+
+	ret = pktio_run_loop(pool);
+
+	return ret;
+}
diff --git a/platform/linux-generic/test/pktio_ipc/pktio_ipc2.c b/platform/linux-generic/test/pktio_ipc/pktio_ipc2.c
new file mode 100644
index 0000000..d860416
--- /dev/null
+++ b/platform/linux-generic/test/pktio_ipc/pktio_ipc2.c
@@ -0,0 +1,142 @@ 
+/* Copyright (c) 2015, Linaro Limited
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ */
+
+/**
+ * @file
+ *
+ * @example pktio_ipc2.c  ODP IPC example application.
+ *		This application works in pair with pktio_ipc1 application.
+ *		It opens ipc pktio, reads packets and updates magic number.
+ *		Also it allocates some packets from internal pool and sends
+ *		to ipc pktio.
+ */
+
+#include "ipc_common.h"
+
+static int ipc_second_process(void)
+{
+	odp_pktio_t pktio;
+	odp_pool_param_t params;
+	odp_pool_t pool;
+	odp_packet_t pkt_tbl[MAX_PKT_BURST];
+	odp_packet_t alloc_pkt;
+	int pkts;
+	int ret;
+	int i;
+	uint64_t start_cycle;
+	uint64_t cycle;
+	uint64_t diff;
+
+	/* Create packet pool */
+	memset(&params, 0, sizeof(params));
+	params.pkt.seg_len = SHM_PKT_POOL_BUF_SIZE;
+	params.pkt.len     = SHM_PKT_POOL_BUF_SIZE;
+	params.pkt.num     = SHM_PKT_POOL_SIZE / SHM_PKT_POOL_BUF_SIZE;
+	params.type        = ODP_POOL_PACKET;
+
+	pool = odp_pool_create("packet_pool2", &params);
+	if (pool == ODP_POOL_INVALID) {
+		EXAMPLE_ERR("Error: packet pool create failed.\n");
+		exit(EXIT_FAILURE);
+	}
+
+	pktio = create_pktio("xxx", pool);
+
+	start_cycle = odp_time_cycles();
+
+	for (;;) {
+		/* exit loop if time specified */
+		if (run_time_sec) {
+			cycle = odp_time_cycles();
+			diff = odp_time_diff_cycles(start_cycle, cycle);
+			if (odp_time_ns_to_cycles(run_time_sec *
+						  ODP_TIME_SEC) < diff)
+				break;
+		}
+
+		/* recv some packets and change MAGIC to MAGIC_2 */
+		pkts = odp_pktio_recv(pktio, pkt_tbl, MAX_PKT_BURST);
+		if (pkts <= 0)
+			continue;
+
+		for (i = 0; i < pkts; i++) {
+			odp_packet_t pkt = pkt_tbl[i];
+			pkt_head_t head;
+			size_t off;
+
+			off = odp_packet_l4_offset(pkt);
+			if (off ==  ODP_PACKET_OFFSET_INVALID)
+				EXAMPLE_ABORT("invalid l4 offset\n");
+
+			off += ODPH_UDPHDR_LEN;
+			ret = odp_packet_copydata_out(pkt, off, sizeof(head),
+						      &head);
+			if (ret)
+				EXAMPLE_ABORT("unable copy out head data");
+
+			if (head.magic != TEST_SEQ_MAGIC)
+				EXAMPLE_ABORT("Wrong head magic!");
+
+			/* Modify magic number in packet */
+			head.magic = TEST_SEQ_MAGIC_2;
+			ret = odp_packet_copydata_in(pkt, off, sizeof(head),
+						     &head);
+			if (ret)
+				EXAMPLE_ABORT("unable to copy in head data");
+		}
+
+		/* send all packets back */
+		ret = ipc_odp_packet_sendall(pktio, pkt_tbl, pkts);
+		if (ret < 0)
+			EXAMPLE_ABORT("can not send packets\n");
+
+		/* alloc packet from local pool, set magic to ALLOC_MAGIC,
+		 * and send it.*/
+		alloc_pkt = odp_packet_alloc(pool, SHM_PKT_POOL_BUF_SIZE);
+		if (alloc_pkt != ODP_PACKET_INVALID) {
+			pkt_head_t head;
+			size_t off;
+
+			odp_packet_l4_offset_set(alloc_pkt, 30);
+
+			head.magic = TEST_ALLOC_MAGIC;
+
+			off = odp_packet_l4_offset(alloc_pkt);
+			off += ODPH_UDPHDR_LEN;
+			ret = odp_packet_copydata_in(alloc_pkt, off,
+						     sizeof(head),
+						     &head);
+			if (ret)
+				EXAMPLE_ABORT("unable to copy in head data");
+
+			pkt_tbl[0] = alloc_pkt;
+			ret = ipc_odp_packet_sendall(pktio, pkt_tbl, 1);
+			if (ret < 0)
+				EXAMPLE_ABORT("can not send packets\n");
+		}
+	}
+
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	/* Parse and store the application arguments */
+	parse_args(argc, argv);
+
+	if (odp_init_global(NULL, NULL)) {
+		EXAMPLE_ERR("Error: ODP global init failed.\n");
+		exit(EXIT_FAILURE);
+	}
+
+	/* Init this thread */
+	if (odp_init_local(ODP_THREAD_CONTROL)) {
+		EXAMPLE_ERR("Error: ODP local init failed.\n");
+		exit(EXIT_FAILURE);
+	}
+
+	return ipc_second_process();
+}
diff --git a/platform/linux-generic/test/pktio_ipc/pktio_ipc_run b/platform/linux-generic/test/pktio_ipc/pktio_ipc_run
new file mode 100755
index 0000000..8eab487
--- /dev/null
+++ b/platform/linux-generic/test/pktio_ipc/pktio_ipc_run
@@ -0,0 +1,55 @@ 
+#!/bin/sh
+#
+# Copyright (c) 2015, Linaro Limited
+# All rights reserved.
+#
+# SPDX-License-Identifier:	BSD-3-Clause
+#
+
+# directories where test binary can be found:
+# -in the validation dir when running make check (intree or out of tree)
+# -in the script directory, when running after 'make install', or
+# -in the validation when running standalone (./pktio_ipc_run) intree.
+# -in the current directory.
+# running stand alone out of tree requires setting PATH
+PATH=./pktio_ipc:$PATH
+PATH=$(dirname $0):$PATH
+PATH=$(dirname $0)/../../../../platform/linux-generic/test/pktio_ipc:$PATH
+PATH=.:$PATH
+
+run()
+{
+	local ret=0
+
+	echo "==== run pktio_ipc1 then pktio_ipc2 ===="
+	rm -rf /dev/shm/ipc_pktio_*
+
+	pktio_ipc1${EXEEXT} -t 15 &
+	IPC_PID=$!
+
+	pktio_ipc2${EXEEXT} -t 10
+	ret=$?
+	kill ${IPC_PID} || true
+
+	if [ $ret -ne 0 ]; then
+		echo "!!! FAILED !!!"
+		exit $ret
+	fi
+
+	sleep 1
+	echo "==== run pktio_ipc2 then pktio_ipc1 ===="
+	rm -rf /dev/shm/ipc_pktio_*
+
+	pktio_ipc2${EXEEXT} -t 25 &
+	IPC_PID=$!
+
+	pktio_ipc1${EXEEXT} -t 20
+	ret=$?
+	kill ${IPC_PID} || true
+
+	exit $ret
+}
+
+case "$1" in
+	*)       run ;;
+esac