Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

8 files changed, 2250 insertions, 0 deletions

diff --git a/src/seastar/dpdk/examples/ethtool/Makefile b/src/seastar/dpdk/examples/ethtool/Makefile
new file mode 100644
index 00000000..30b42b70
--- /dev/null
+++ b/src/seastar/dpdk/examples/ethtool/Makefile
@@ -0,0 +1,52 @@
+#   BSD LICENSE
+#
+#   Copyright(c) 2015 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.
+
+ifeq ($(RTE_SDK),)
+$(error "Please define RTE_SDK environment variable")
+endif
+
+# Default target, can be overwritten by command line or environment
+RTE_TARGET ?= x86_64-native-linuxapp-gcc
+
+include $(RTE_SDK)/mk/rte.vars.mk
+
+ifneq ($(CONFIG_RTE_EXEC_ENV),"linuxapp")
+$(info This application can only operate in a linuxapp environment, \
+please change the definition of the RTE_TARGET environment variable)
+else
+
+DIRS-y += lib ethtool-app
+endif
+
+DEPDIRS-ethtool-app := lib
+DEPDIRS-lib := librte_eal librte_ether
+
+include $(RTE_SDK)/mk/rte.extsubdir.mk
diff --git a/src/seastar/dpdk/examples/ethtool/ethtool-app/Makefile b/src/seastar/dpdk/examples/ethtool/ethtool-app/Makefile
new file mode 100644
index 00000000..96abf53b
--- /dev/null
+++ b/src/seastar/dpdk/examples/ethtool/ethtool-app/Makefile
@@ -0,0 +1,59 @@
+#   BSD LICENSE
+#
+#   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+#   All rights reserved.
+#
+#   Redistribution and use in source and binary forms, with or without
+#   modification, are permitted provided that the following conditions
+#   are met:
+#
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in
+#       the documentation and/or other materials provided with the
+#       distribution.
+#     * Neither the name of Intel Corporation nor the names of its
+#       contributors may be used to endorse or promote products derived
+#       from this software without specific prior written permission.
+#
+#   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+#   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+#   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+#   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+#   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+#   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+#   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+#   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+#   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+#   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+ifeq ($(RTE_SDK),)
+$(error "Please define RTE_SDK environment variable")
+endif
+
+# Default target, can be overridden by command line or environment
+RTE_TARGET ?= x86_64-native-linuxapp-gcc
+
+include $(RTE_SDK)/mk/rte.vars.mk
+
+# binary name
+APP = ethtool
+
+# all source are stored in SRCS-y
+SRCS-y := main.c ethapp.c
+
+CFLAGS += -O3 -D_GNU_SOURCE -pthread -I$(SRCDIR)/../lib
+CFLAGS += $(WERROR_FLAGS)
+
+LDLIBS += -L$(subst ethtool-app,lib,$(RTE_OUTPUT))/lib
+LDLIBS += -lrte_ethtool
+
+ifeq ($(CONFIG_RTE_BUILD_SHARED_LIB),y)
+ifeq ($(CONFIG_RTE_LIBRTE_IXGBE_PMD),y)
+LDLIBS += -lrte_pmd_ixgbe
+endif
+endif
+
+include $(RTE_SDK)/mk/rte.extapp.mk
diff --git a/src/seastar/dpdk/examples/ethtool/ethtool-app/ethapp.c b/src/seastar/dpdk/examples/ethtool/ethtool-app/ethapp.c
new file mode 100644
index 00000000..35269ea2
--- /dev/null
+++ b/src/seastar/dpdk/examples/ethtool/ethtool-app/ethapp.c
@@ -0,0 +1,875 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2015 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.
+ */
+
+#include <cmdline_parse.h>
+#include <cmdline_parse_num.h>
+#include <cmdline_parse_string.h>
+#include <cmdline_parse_etheraddr.h>
+#include <cmdline_socket.h>
+#include <cmdline.h>
+
+#include "rte_ethtool.h"
+#include "ethapp.h"
+
+#define EEPROM_DUMP_CHUNKSIZE 1024
+
+
+struct pcmd_get_params {
+	cmdline_fixed_string_t cmd;
+};
+struct pcmd_int_params {
+	cmdline_fixed_string_t cmd;
+	uint16_t port;
+};
+struct pcmd_intstr_params {
+	cmdline_fixed_string_t cmd;
+	uint16_t port;
+	cmdline_fixed_string_t opt;
+};
+struct pcmd_intmac_params {
+	cmdline_fixed_string_t cmd;
+	uint16_t port;
+	struct ether_addr mac;
+};
+struct pcmd_str_params {
+	cmdline_fixed_string_t cmd;
+	cmdline_fixed_string_t opt;
+};
+struct pcmd_vlan_params {
+	cmdline_fixed_string_t cmd;
+	uint16_t port;
+	cmdline_fixed_string_t mode;
+	uint16_t vid;
+};
+struct pcmd_intintint_params {
+	cmdline_fixed_string_t cmd;
+	uint16_t port;
+	uint16_t tx;
+	uint16_t rx;
+};
+
+
+/* Parameter-less commands */
+cmdline_parse_token_string_t pcmd_quit_token_cmd =
+	TOKEN_STRING_INITIALIZER(struct pcmd_get_params, cmd, "quit");
+cmdline_parse_token_string_t pcmd_stats_token_cmd =
+	TOKEN_STRING_INITIALIZER(struct pcmd_get_params, cmd, "stats");
+cmdline_parse_token_string_t pcmd_drvinfo_token_cmd =
+	TOKEN_STRING_INITIALIZER(struct pcmd_get_params, cmd, "drvinfo");
+cmdline_parse_token_string_t pcmd_link_token_cmd =
+	TOKEN_STRING_INITIALIZER(struct pcmd_get_params, cmd, "link");
+
+/* Commands taking just port id */
+cmdline_parse_token_string_t pcmd_open_token_cmd =
+	TOKEN_STRING_INITIALIZER(struct pcmd_int_params, cmd, "open");
+cmdline_parse_token_string_t pcmd_stop_token_cmd =
+	TOKEN_STRING_INITIALIZER(struct pcmd_int_params, cmd, "stop");
+cmdline_parse_token_string_t pcmd_rxmode_token_cmd =
+	TOKEN_STRING_INITIALIZER(struct pcmd_int_params, cmd, "rxmode");
+cmdline_parse_token_string_t pcmd_portstats_token_cmd =
+	TOKEN_STRING_INITIALIZER(struct pcmd_int_params, cmd, "portstats");
+cmdline_parse_token_num_t pcmd_int_token_port =
+	TOKEN_NUM_INITIALIZER(struct pcmd_int_params, port, UINT16);
+
+/* Commands taking port id and string */
+cmdline_parse_token_string_t pcmd_eeprom_token_cmd =
+	TOKEN_STRING_INITIALIZER(struct pcmd_intstr_params, cmd, "eeprom");
+cmdline_parse_token_string_t pcmd_mtu_token_cmd =
+	TOKEN_STRING_INITIALIZER(struct pcmd_intstr_params, cmd, "mtu");
+cmdline_parse_token_string_t pcmd_regs_token_cmd =
+	TOKEN_STRING_INITIALIZER(struct pcmd_intstr_params, cmd, "regs");
+
+cmdline_parse_token_num_t pcmd_intstr_token_port =
+	TOKEN_NUM_INITIALIZER(struct pcmd_intstr_params, port, UINT16);
+cmdline_parse_token_string_t pcmd_intstr_token_opt =
+	TOKEN_STRING_INITIALIZER(struct pcmd_intstr_params, opt, NULL);
+
+/* Commands taking port id and a MAC address string */
+cmdline_parse_token_string_t pcmd_macaddr_token_cmd =
+	TOKEN_STRING_INITIALIZER(struct pcmd_intmac_params, cmd, "macaddr");
+cmdline_parse_token_num_t pcmd_intmac_token_port =
+	TOKEN_NUM_INITIALIZER(struct pcmd_intmac_params, port, UINT16);
+cmdline_parse_token_etheraddr_t pcmd_intmac_token_mac =
+	TOKEN_ETHERADDR_INITIALIZER(struct pcmd_intmac_params, mac);
+
+/* Command taking just a MAC address */
+cmdline_parse_token_string_t pcmd_validate_token_cmd =
+	TOKEN_STRING_INITIALIZER(struct pcmd_intmac_params, cmd, "validate");
+
+
+/* Commands taking port id and two integers */
+cmdline_parse_token_string_t pcmd_ringparam_token_cmd =
+	TOKEN_STRING_INITIALIZER(struct pcmd_intintint_params, cmd,
+		"ringparam");
+cmdline_parse_token_num_t pcmd_intintint_token_port =
+	TOKEN_NUM_INITIALIZER(struct pcmd_intintint_params, port, UINT16);
+cmdline_parse_token_num_t pcmd_intintint_token_tx =
+	TOKEN_NUM_INITIALIZER(struct pcmd_intintint_params, tx, UINT16);
+cmdline_parse_token_num_t pcmd_intintint_token_rx =
+	TOKEN_NUM_INITIALIZER(struct pcmd_intintint_params, rx, UINT16);
+
+
+/* Pause commands */
+cmdline_parse_token_string_t pcmd_pause_token_cmd =
+	TOKEN_STRING_INITIALIZER(struct pcmd_intstr_params, cmd, "pause");
+cmdline_parse_token_num_t pcmd_pause_token_port =
+	TOKEN_NUM_INITIALIZER(struct pcmd_intstr_params, port, UINT16);
+cmdline_parse_token_string_t pcmd_pause_token_opt =
+	TOKEN_STRING_INITIALIZER(struct pcmd_intstr_params,
+		opt, "all#tx#rx#none");
+
+/* VLAN commands */
+cmdline_parse_token_string_t pcmd_vlan_token_cmd =
+	TOKEN_STRING_INITIALIZER(struct pcmd_vlan_params, cmd, "vlan");
+cmdline_parse_token_num_t pcmd_vlan_token_port =
+	TOKEN_NUM_INITIALIZER(struct pcmd_vlan_params, port, UINT16);
+cmdline_parse_token_string_t pcmd_vlan_token_mode =
+	TOKEN_STRING_INITIALIZER(struct pcmd_vlan_params, mode, "add#del");
+cmdline_parse_token_num_t pcmd_vlan_token_vid =
+	TOKEN_NUM_INITIALIZER(struct pcmd_vlan_params, vid, UINT16);
+
+
+static void
+pcmd_quit_callback(__rte_unused void *ptr_params,
+	struct cmdline *ctx,
+	__rte_unused void *ptr_data)
+{
+	cmdline_quit(ctx);
+}
+
+
+static void
+pcmd_drvinfo_callback(__rte_unused void *ptr_params,
+	__rte_unused struct cmdline *ctx,
+	__rte_unused void *ptr_data)
+{
+	struct ethtool_drvinfo info;
+	int id_port;
+
+	for (id_port = 0; id_port < rte_eth_dev_count(); id_port++) {
+		memset(&info, 0, sizeof(info));
+		if (rte_ethtool_get_drvinfo(id_port, &info)) {
+			printf("Error getting info for port %i\n", id_port);
+			return;
+		}
+		printf("Port %i driver: %s (ver: %s)\n",
+			id_port, info.driver, info.version
+		      );
+		printf("firmware-version: %s\n", info.fw_version);
+		printf("bus-info: %s\n", info.bus_info);
+	}
+}
+
+
+static void
+pcmd_link_callback(__rte_unused void *ptr_params,
+	__rte_unused struct cmdline *ctx,
+	__rte_unused void *ptr_data)
+{
+	int num_ports = rte_eth_dev_count();
+	int id_port, stat_port;
+
+	for (id_port = 0; id_port < num_ports; id_port++) {
+		if (!rte_eth_dev_is_valid_port(id_port))
+			continue;
+		stat_port = rte_ethtool_get_link(id_port);
+		switch (stat_port) {
+		case 0:
+			printf("Port %i: Down\n", id_port);
+			break;
+		case 1:
+			printf("Port %i: Up\n", id_port);
+			break;
+		default:
+			printf("Port %i: Error getting link status\n",
+				id_port
+				);
+			break;
+		}
+	}
+	printf("\n");
+}
+
+
+static void
+pcmd_regs_callback(void *ptr_params,
+	__rte_unused struct cmdline *ctx,
+	__rte_unused void *ptr_data)
+{
+	struct pcmd_intstr_params *params = ptr_params;
+	int len_regs;
+	struct ethtool_regs regs;
+	unsigned char *buf_data;
+	FILE *fp_regs;
+
+	if (!rte_eth_dev_is_valid_port(params->port)) {
+		printf("Error: Invalid port number %i\n", params->port);
+		return;
+	}
+	len_regs = rte_ethtool_get_regs_len(params->port);
+	if (len_regs > 0) {
+		printf("Port %i: %i bytes\n", params->port, len_regs);
+		buf_data = malloc(len_regs);
+		if (buf_data == NULL) {
+			printf("Error allocating %i bytes for buffer\n",
+				len_regs);
+			return;
+		}
+		if (!rte_ethtool_get_regs(params->port, &regs, buf_data)) {
+			fp_regs = fopen(params->opt, "wb");
+			if (fp_regs == NULL) {
+				printf("Error opening '%s' for writing\n",
+					params->opt);
+			} else {
+				if ((int)fwrite(buf_data,
+						1, len_regs,
+						fp_regs) != len_regs)
+					printf("Error writing '%s'\n",
+						params->opt);
+				fclose(fp_regs);
+			}
+		}
+		free(buf_data);
+	} else if (len_regs == -ENOTSUP)
+		printf("Port %i: Operation not supported\n", params->port);
+	else
+		printf("Port %i: Error getting registers\n", params->port);
+}
+
+
+static void
+pcmd_eeprom_callback(void *ptr_params,
+	__rte_unused struct cmdline *ctx,
+	__rte_unused void *ptr_data)
+{
+	struct pcmd_intstr_params *params = ptr_params;
+	struct ethtool_eeprom info_eeprom;
+	int len_eeprom;
+	int pos_eeprom;
+	int stat;
+	unsigned char bytes_eeprom[EEPROM_DUMP_CHUNKSIZE];
+	FILE *fp_eeprom;
+
+	if (!rte_eth_dev_is_valid_port(params->port)) {
+		printf("Error: Invalid port number %i\n", params->port);
+		return;
+	}
+	len_eeprom = rte_ethtool_get_eeprom_len(params->port);
+	if (len_eeprom > 0) {
+		fp_eeprom = fopen(params->opt, "wb");
+		if (fp_eeprom == NULL) {
+			printf("Error opening '%s' for writing\n",
+				params->opt);
+			return;
+		}
+		printf("Total EEPROM length: %i bytes\n", len_eeprom);
+		info_eeprom.len = EEPROM_DUMP_CHUNKSIZE;
+		for (pos_eeprom = 0;
+				pos_eeprom < len_eeprom;
+				pos_eeprom += EEPROM_DUMP_CHUNKSIZE) {
+			info_eeprom.offset = pos_eeprom;
+			if (pos_eeprom + EEPROM_DUMP_CHUNKSIZE > len_eeprom)
+				info_eeprom.len = len_eeprom - pos_eeprom;
+			else
+				info_eeprom.len = EEPROM_DUMP_CHUNKSIZE;
+			stat = rte_ethtool_get_eeprom(
+				params->port, &info_eeprom, bytes_eeprom
+				);
+			if (stat != 0) {
+				printf("EEPROM read error %i\n", stat);
+				break;
+			}
+			if (fwrite(bytes_eeprom,
+					1, info_eeprom.len,
+					fp_eeprom) != info_eeprom.len) {
+				printf("Error writing '%s'\n", params->opt);
+				break;
+			}
+		}
+		fclose(fp_eeprom);
+	} else if (len_eeprom == 0)
+		printf("Port %i: Device does not have EEPROM\n", params->port);
+	else if (len_eeprom == -ENOTSUP)
+		printf("Port %i: Operation not supported\n", params->port);
+	else
+		printf("Port %i: Error getting EEPROM\n", params->port);
+}
+
+
+static void
+pcmd_pause_callback(void *ptr_params,
+	__rte_unused struct cmdline *ctx,
+	void *ptr_data)
+{
+	struct pcmd_intstr_params *params = ptr_params;
+	struct ethtool_pauseparam info;
+	int stat;
+
+	if (!rte_eth_dev_is_valid_port(params->port)) {
+		printf("Error: Invalid port number %i\n", params->port);
+		return;
+	}
+	if (ptr_data != NULL) {
+		stat = rte_ethtool_get_pauseparam(params->port, &info);
+	} else {
+		memset(&info, 0, sizeof(info));
+		if (strcasecmp("all", params->opt) == 0) {
+			info.tx_pause = 1;
+			info.rx_pause = 1;
+		} else if (strcasecmp("tx", params->opt) == 0) {
+			info.tx_pause = 1;
+			info.rx_pause = 0;
+		} else if (strcasecmp("rx", params->opt) == 0) {
+			info.tx_pause = 0;
+			info.rx_pause = 1;
+		} else {
+			info.tx_pause = 0;
+			info.rx_pause = 0;
+		}
+		/* Assume auto-negotiation wanted */
+		info.autoneg = 1;
+		stat = rte_ethtool_set_pauseparam(params->port, &info);
+	}
+	if (stat == 0) {
+		if (info.rx_pause && info.tx_pause)
+			printf("Port %i: Tx & Rx Paused\n", params->port);
+		else if (info.rx_pause)
+			printf("Port %i: Rx Paused\n", params->port);
+		else if (info.tx_pause)
+			printf("Port %i: Tx Paused\n", params->port);
+		else
+			printf("Port %i: Tx & Rx not paused\n", params->port);
+	} else if (stat == -ENOTSUP)
+		printf("Port %i: Operation not supported\n", params->port);
+	else
+		printf("Port %i: Error %i\n", params->port, stat);
+}
+
+
+static void
+pcmd_open_callback(__rte_unused void *ptr_params,
+	__rte_unused struct cmdline *ctx,
+	__rte_unused void *ptr_data)
+{
+	struct pcmd_int_params *params = ptr_params;
+	int stat;
+
+	if (!rte_eth_dev_is_valid_port(params->port)) {
+		printf("Error: Invalid port number %i\n", params->port);
+		return;
+	}
+	lock_port(params->port);
+	stat = rte_ethtool_net_open(params->port);
+	mark_port_active(params->port);
+	unlock_port(params->port);
+	if (stat == 0)
+		return;
+	else if (stat == -ENOTSUP)
+		printf("Port %i: Operation not supported\n", params->port);
+	else
+		printf("Port %i: Error opening device\n", params->port);
+}
+
+static void
+pcmd_stop_callback(__rte_unused void *ptr_params,
+	__rte_unused struct cmdline *ctx,
+	__rte_unused void *ptr_data)
+{
+	struct pcmd_int_params *params = ptr_params;
+	int stat;
+
+	if (!rte_eth_dev_is_valid_port(params->port)) {
+		printf("Error: Invalid port number %i\n", params->port);
+		return;
+	}
+	lock_port(params->port);
+	stat = rte_ethtool_net_stop(params->port);
+	mark_port_inactive(params->port);
+	unlock_port(params->port);
+	if (stat == 0)
+		return;
+	else if (stat == -ENOTSUP)
+		printf("Port %i: Operation not supported\n", params->port);
+	else
+		printf("Port %i: Error stopping device\n", params->port);
+}
+
+
+static void
+pcmd_rxmode_callback(void *ptr_params,
+	__rte_unused struct cmdline *ctx,
+	__rte_unused void *ptr_data)
+{
+	struct pcmd_intstr_params *params = ptr_params;
+	int stat;
+
+	if (!rte_eth_dev_is_valid_port(params->port)) {
+		printf("Error: Invalid port number %i\n", params->port);
+		return;
+	}
+	stat = rte_ethtool_net_set_rx_mode(params->port);
+	if (stat == 0)
+		return;
+	else if (stat == -ENOTSUP)
+		printf("Port %i: Operation not supported\n", params->port);
+	else
+		printf("Port %i: Error setting rx mode\n", params->port);
+}
+
+
+static void
+pcmd_macaddr_callback(void *ptr_params,
+	__rte_unused struct cmdline *ctx,
+	void *ptr_data)
+{
+	struct pcmd_intmac_params *params = ptr_params;
+	struct ether_addr mac_addr;
+	int stat;
+
+	stat = 0;
+	if (!rte_eth_dev_is_valid_port(params->port)) {
+		printf("Error: Invalid port number %i\n", params->port);
+		return;
+	}
+	if (ptr_data != NULL) {
+		lock_port(params->port);
+		stat = rte_ethtool_net_set_mac_addr(params->port,
+			&params->mac);
+		mark_port_newmac(params->port);
+		unlock_port(params->port);
+		if (stat == 0) {
+			printf("MAC address changed\n");
+			return;
+		}
+	} else {
+		stat = rte_ethtool_net_get_mac_addr(params->port, &mac_addr);
+		if (stat == 0) {
+			printf(
+				"Port %i MAC Address: %02x:%02x:%02x:%02x:%02x:%02x\n",
+				params->port,
+				mac_addr.addr_bytes[0],
+				mac_addr.addr_bytes[1],
+				mac_addr.addr_bytes[2],
+				mac_addr.addr_bytes[3],
+				mac_addr.addr_bytes[4],
+				mac_addr.addr_bytes[5]);
+			return;
+		}
+	}
+
+	printf("Port %i: Error %s\n", params->port,
+	       strerror(-stat));
+}
+
+static void
+pcmd_mtu_callback(void *ptr_params,
+	__rte_unused struct cmdline *ctx,
+	__rte_unused void *ptr_data)
+{
+	struct pcmd_intstr_params *params = ptr_params;
+	int stat;
+	int new_mtu;
+	char *ptr_parse_end;
+
+	if (!rte_eth_dev_is_valid_port(params->port)) {
+		printf("Error: Invalid port number %i\n", params->port);
+		return;
+	}
+	new_mtu = atoi(params->opt);
+	new_mtu = strtoul(params->opt, &ptr_parse_end, 10);
+	if (*ptr_parse_end != '\0' ||
+			new_mtu < ETHER_MIN_MTU ||
+			new_mtu > ETHER_MAX_JUMBO_FRAME_LEN) {
+		printf("Port %i: Invalid MTU value\n", params->port);
+		return;
+	}
+	stat = rte_ethtool_net_change_mtu(params->port, new_mtu);
+	if (stat == 0)
+		printf("Port %i: MTU set to %i\n", params->port, new_mtu);
+	else if (stat == -ENOTSUP)
+		printf("Port %i: Operation not supported\n", params->port);
+	else
+		printf("Port %i: Error setting MTU\n", params->port);
+}
+
+
+
+static void pcmd_portstats_callback(__rte_unused void *ptr_params,
+	__rte_unused struct cmdline *ctx,
+	__rte_unused void *ptr_data)
+{
+	struct pcmd_int_params *params = ptr_params;
+	struct rte_eth_stats stat_info;
+	int stat;
+
+	if (!rte_eth_dev_is_valid_port(params->port)) {
+		printf("Error: Invalid port number %i\n", params->port);
+		return;
+	}
+	stat = rte_ethtool_net_get_stats64(params->port, &stat_info);
+	if (stat == 0) {
+		printf("Port %i stats\n", params->port);
+		printf("   In: %" PRIu64 " (%" PRIu64 " bytes)\n"
+			"  Out: %"PRIu64" (%"PRIu64 " bytes)\n"
+			"  Err: %"PRIu64"\n",
+			stat_info.ipackets,
+			stat_info.ibytes,
+			stat_info.opackets,
+			stat_info.obytes,
+			stat_info.ierrors+stat_info.oerrors
+		      );
+	} else if (stat == -ENOTSUP)
+		printf("Port %i: Operation not supported\n", params->port);
+	else
+		printf("Port %i: Error fetching statistics\n", params->port);
+}
+
+static void pcmd_ringparam_callback(__rte_unused void *ptr_params,
+	__rte_unused struct cmdline *ctx,
+	void *ptr_data)
+{
+	struct pcmd_intintint_params *params = ptr_params;
+	struct ethtool_ringparam ring_data;
+	struct ethtool_ringparam ring_params;
+	int stat;
+
+	if (!rte_eth_dev_is_valid_port(params->port)) {
+		printf("Error: Invalid port number %i\n", params->port);
+		return;
+	}
+	if (ptr_data == NULL) {
+		stat = rte_ethtool_get_ringparam(params->port, &ring_data);
+		if (stat == 0) {
+			printf("Port %i ring parameters\n"
+				"  Rx Pending: %i (%i max)\n"
+				"  Tx Pending: %i (%i max)\n",
+				params->port,
+				ring_data.rx_pending,
+				ring_data.rx_max_pending,
+				ring_data.tx_pending,
+				ring_data.tx_max_pending);
+		}
+	} else {
+		if (params->tx < 1 || params->rx < 1) {
+			printf("Error: Invalid parameters\n");
+			return;
+		}
+		memset(&ring_params, 0, sizeof(struct ethtool_ringparam));
+		ring_params.tx_pending = params->tx;
+		ring_params.rx_pending = params->rx;
+		lock_port(params->port);
+		stat = rte_ethtool_set_ringparam(params->port, &ring_params);
+		unlock_port(params->port);
+	}
+	if (stat == 0)
+		return;
+	else if (stat == -ENOTSUP)
+		printf("Port %i: Operation not supported\n", params->port);
+	else
+		printf("Port %i: Error fetching statistics\n", params->port);
+}
+
+static void pcmd_validate_callback(void *ptr_params,
+	__rte_unused struct cmdline *ctx,
+	__rte_unused void *ptr_data)
+{
+	struct pcmd_intmac_params *params = ptr_params;
+
+	if (rte_ethtool_net_validate_addr(0, &params->mac))
+		printf("Address is unicast\n");
+	else
+		printf("Address is not unicast\n");
+}
+
+
+static void pcmd_vlan_callback(__rte_unused void *ptr_params,
+	__rte_unused struct cmdline *ctx,
+	__rte_unused void *ptr_data)
+{
+	struct pcmd_vlan_params *params = ptr_params;
+	int stat;
+
+	if (!rte_eth_dev_is_valid_port(params->port)) {
+		printf("Error: Invalid port number %i\n", params->port);
+		return;
+	}
+	stat = 0;
+
+	if (strcasecmp("add", params->mode) == 0) {
+		stat = rte_ethtool_net_vlan_rx_add_vid(
+			params->port, params->vid
+			);
+		if (stat == 0)
+			printf("VLAN vid %i added\n", params->vid);
+
+	} else if (strcasecmp("del", params->mode) == 0) {
+		stat = rte_ethtool_net_vlan_rx_kill_vid(
+			params->port, params->vid
+			);
+		if (stat == 0)
+			printf("VLAN vid %i removed\n", params->vid);
+	} else {
+		/* Should not happen! */
+		printf("Error: Bad mode %s\n", params->mode);
+	}
+	if (stat == -ENOTSUP)
+		printf("Port %i: Operation not supported\n", params->port);
+	else if (stat == -ENOSYS)
+		printf("Port %i: VLAN filtering disabled\n", params->port);
+	else if (stat != 0)
+		printf("Port %i: Error changing VLAN setup (code %i)\n",
+			params->port, -stat);
+}
+
+
+cmdline_parse_inst_t pcmd_quit = {
+	.f = pcmd_quit_callback,
+	.data = NULL,
+	.help_str = "quit\n     Exit program",
+	.tokens = {(void *)&pcmd_quit_token_cmd, NULL},
+};
+cmdline_parse_inst_t pcmd_drvinfo = {
+	.f = pcmd_drvinfo_callback,
+	.data = NULL,
+	.help_str = "drvinfo\n     Print driver info",
+	.tokens = {(void *)&pcmd_drvinfo_token_cmd, NULL},
+};
+cmdline_parse_inst_t pcmd_link = {
+	.f = pcmd_link_callback,
+	.data = NULL,
+	.help_str = "link\n     Print port link states",
+	.tokens = {(void *)&pcmd_link_token_cmd, NULL},
+};
+cmdline_parse_inst_t pcmd_regs = {
+	.f = pcmd_regs_callback,
+	.data = NULL,
+	.help_str = "regs <port_id> <filename>\n"
+		"     Dump port register(s) to file",
+	.tokens = {
+		(void *)&pcmd_regs_token_cmd,
+		(void *)&pcmd_intstr_token_port,
+		(void *)&pcmd_intstr_token_opt,
+		NULL
+	},
+};
+cmdline_parse_inst_t pcmd_eeprom = {
+	.f = pcmd_eeprom_callback,
+	.data = NULL,
+	.help_str = "eeprom <port_id> <filename>\n    Dump EEPROM to file",
+	.tokens = {
+		(void *)&pcmd_eeprom_token_cmd,
+		(void *)&pcmd_intstr_token_port,
+		(void *)&pcmd_intstr_token_opt,
+		NULL
+	},
+};
+cmdline_parse_inst_t pcmd_pause_noopt = {
+	.f = pcmd_pause_callback,
+	.data = (void *)0x01,
+	.help_str = "pause <port_id>\n     Print port pause state",
+	.tokens = {
+		(void *)&pcmd_pause_token_cmd,
+		(void *)&pcmd_pause_token_port,
+		NULL
+	},
+};
+cmdline_parse_inst_t pcmd_pause = {
+	.f = pcmd_pause_callback,
+	.data = NULL,
+	.help_str =
+		"pause <port_id> <all|tx|rx|none>\n     Pause/unpause port",
+	.tokens = {
+		(void *)&pcmd_pause_token_cmd,
+		(void *)&pcmd_pause_token_port,
+		(void *)&pcmd_pause_token_opt,
+		NULL
+	},
+};
+cmdline_parse_inst_t pcmd_open = {
+	.f = pcmd_open_callback,
+	.data = NULL,
+	.help_str = "open <port_id>\n     Open port",
+	.tokens = {
+		(void *)&pcmd_open_token_cmd,
+		(void *)&pcmd_int_token_port,
+		NULL
+	},
+};
+cmdline_parse_inst_t pcmd_stop = {
+	.f = pcmd_stop_callback,
+	.data = NULL,
+	.help_str = "stop <port_id>\n     Stop port",
+	.tokens = {
+		(void *)&pcmd_stop_token_cmd,
+		(void *)&pcmd_int_token_port,
+		NULL
+	},
+};
+cmdline_parse_inst_t pcmd_rxmode = {
+	.f = pcmd_rxmode_callback,
+	.data = NULL,
+	.help_str = "rxmode <port_id>\n     Toggle port Rx mode",
+	.tokens = {
+		(void *)&pcmd_rxmode_token_cmd,
+		(void *)&pcmd_int_token_port,
+		NULL
+	},
+};
+cmdline_parse_inst_t pcmd_macaddr_get = {
+	.f = pcmd_macaddr_callback,
+	.data = NULL,
+	.help_str = "macaddr <port_id>\n"
+		"     Get MAC address",
+	.tokens = {
+		(void *)&pcmd_macaddr_token_cmd,
+		(void *)&pcmd_intstr_token_port,
+		NULL
+	},
+};
+cmdline_parse_inst_t pcmd_macaddr = {
+	.f = pcmd_macaddr_callback,
+	.data = (void *)0x01,
+	.help_str =
+		"macaddr <port_id> <mac_addr>\n"
+		"     Set MAC address",
+	.tokens = {
+		(void *)&pcmd_macaddr_token_cmd,
+		(void *)&pcmd_intmac_token_port,
+		(void *)&pcmd_intmac_token_mac,
+		NULL
+	},
+};
+cmdline_parse_inst_t pcmd_mtu = {
+	.f = pcmd_mtu_callback,
+	.data = NULL,
+	.help_str = "mtu <port_id> <mtu_value>\n"
+		"     Change MTU",
+	.tokens = {
+		(void *)&pcmd_mtu_token_cmd,
+		(void *)&pcmd_intstr_token_port,
+		(void *)&pcmd_intstr_token_opt,
+		NULL
+	},
+};
+cmdline_parse_inst_t pcmd_portstats = {
+	.f = pcmd_portstats_callback,
+	.data = NULL,
+	.help_str = "portstats <port_id>\n"
+		"     Print port eth statistics",
+	.tokens = {
+		(void *)&pcmd_portstats_token_cmd,
+		(void *)&pcmd_int_token_port,
+		NULL
+	},
+};
+cmdline_parse_inst_t pcmd_ringparam = {
+	.f = pcmd_ringparam_callback,
+	.data = NULL,
+	.help_str = "ringparam <port_id>\n"
+		"     Print ring parameters",
+	.tokens = {
+		(void *)&pcmd_ringparam_token_cmd,
+		(void *)&pcmd_intintint_token_port,
+		NULL
+	},
+};
+cmdline_parse_inst_t pcmd_ringparam_set = {
+	.f = pcmd_ringparam_callback,
+	.data = (void *)1,
+	.help_str = "ringparam <port_id> <tx_param> <rx_param>\n"
+		"     Set ring parameters",
+	.tokens = {
+		(void *)&pcmd_ringparam_token_cmd,
+		(void *)&pcmd_intintint_token_port,
+		(void *)&pcmd_intintint_token_tx,
+		(void *)&pcmd_intintint_token_rx,
+		NULL
+	},
+};
+cmdline_parse_inst_t pcmd_validate = {
+	.f = pcmd_validate_callback,
+	.data = NULL,
+	.help_str = "validate <mac_addr>\n"
+		"     Check that MAC address is valid unicast address",
+	.tokens = {
+		(void *)&pcmd_validate_token_cmd,
+		(void *)&pcmd_intmac_token_mac,
+		NULL
+	},
+};
+cmdline_parse_inst_t pcmd_vlan = {
+	.f = pcmd_vlan_callback,
+	.data = NULL,
+	.help_str = "vlan <port_id> <add|del> <vlan_id>\n"
+		"     Add/remove VLAN id",
+	.tokens = {
+		(void *)&pcmd_vlan_token_cmd,
+		(void *)&pcmd_vlan_token_port,
+		(void *)&pcmd_vlan_token_mode,
+		(void *)&pcmd_vlan_token_vid,
+		NULL
+	},
+};
+
+
+cmdline_parse_ctx_t list_prompt_commands[] = {
+	(cmdline_parse_inst_t *)&pcmd_drvinfo,
+	(cmdline_parse_inst_t *)&pcmd_eeprom,
+	(cmdline_parse_inst_t *)&pcmd_link,
+	(cmdline_parse_inst_t *)&pcmd_macaddr_get,
+	(cmdline_parse_inst_t *)&pcmd_macaddr,
+	(cmdline_parse_inst_t *)&pcmd_mtu,
+	(cmdline_parse_inst_t *)&pcmd_open,
+	(cmdline_parse_inst_t *)&pcmd_pause_noopt,
+	(cmdline_parse_inst_t *)&pcmd_pause,
+	(cmdline_parse_inst_t *)&pcmd_portstats,
+	(cmdline_parse_inst_t *)&pcmd_regs,
+	(cmdline_parse_inst_t *)&pcmd_ringparam,
+	(cmdline_parse_inst_t *)&pcmd_ringparam_set,
+	(cmdline_parse_inst_t *)&pcmd_rxmode,
+	(cmdline_parse_inst_t *)&pcmd_stop,
+	(cmdline_parse_inst_t *)&pcmd_validate,
+	(cmdline_parse_inst_t *)&pcmd_vlan,
+	(cmdline_parse_inst_t *)&pcmd_quit,
+	NULL
+};
+
+
+void ethapp_main(void)
+{
+	struct cmdline *ctx_cmdline;
+
+	ctx_cmdline = cmdline_stdin_new(list_prompt_commands, "EthApp> ");
+	cmdline_interact(ctx_cmdline);
+	cmdline_stdin_exit(ctx_cmdline);
+}
diff --git a/src/seastar/dpdk/examples/ethtool/ethtool-app/ethapp.h b/src/seastar/dpdk/examples/ethtool/ethtool-app/ethapp.h
new file mode 100644
index 00000000..ba438eea
--- /dev/null
+++ b/src/seastar/dpdk/examples/ethtool/ethtool-app/ethapp.h
@@ -0,0 +1,41 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2015 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.
+ */
+
+
+void ethapp_main(void);
+void print_stats(void);
+void lock_port(int idx_port);
+void unlock_port(int idx_port);
+void mark_port_inactive(int idx_port);
+void mark_port_active(int idx_port);
+void mark_port_newmac(int idx_port);
diff --git a/src/seastar/dpdk/examples/ethtool/ethtool-app/main.c b/src/seastar/dpdk/examples/ethtool/ethtool-app/main.c
new file mode 100644
index 00000000..6d50d463
--- /dev/null
+++ b/src/seastar/dpdk/examples/ethtool/ethtool-app/main.c
@@ -0,0 +1,304 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2015 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.
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <rte_common.h>
+#include <rte_spinlock.h>
+#include <rte_eal.h>
+#include <rte_ethdev.h>
+#include <rte_ether.h>
+#include <rte_ip.h>
+#include <rte_memory.h>
+#include <rte_mempool.h>
+#include <rte_mbuf.h>
+
+#include "ethapp.h"
+
+#define MAX_PORTS RTE_MAX_ETHPORTS
+#define MAX_BURST_LENGTH 32
+#define PORT_RX_QUEUE_SIZE 128
+#define PORT_TX_QUEUE_SIZE 256
+#define PKTPOOL_EXTRA_SIZE 512
+#define PKTPOOL_CACHE 32
+
+
+struct txq_port {
+	uint16_t cnt_unsent;
+	struct rte_mbuf *buf_frames[MAX_BURST_LENGTH];
+};
+
+struct app_port {
+	struct ether_addr mac_addr;
+	struct txq_port txq;
+	rte_spinlock_t lock;
+	int port_active;
+	int port_dirty;
+	int idx_port;
+	struct rte_mempool *pkt_pool;
+};
+
+struct app_config {
+	struct app_port ports[MAX_PORTS];
+	int cnt_ports;
+	int exit_now;
+};
+
+
+struct app_config app_cfg;
+
+
+void lock_port(int idx_port)
+{
+	struct app_port *ptr_port = &app_cfg.ports[idx_port];
+
+	rte_spinlock_lock(&ptr_port->lock);
+}
+
+void unlock_port(int idx_port)
+{
+	struct app_port *ptr_port = &app_cfg.ports[idx_port];
+
+	rte_spinlock_unlock(&ptr_port->lock);
+}
+
+void mark_port_active(int idx_port)
+{
+	struct app_port *ptr_port = &app_cfg.ports[idx_port];
+
+	ptr_port->port_active = 1;
+}
+
+void mark_port_inactive(int idx_port)
+{
+	struct app_port *ptr_port = &app_cfg.ports[idx_port];
+
+	ptr_port->port_active = 0;
+}
+
+void mark_port_newmac(int idx_port)
+{
+	struct app_port *ptr_port = &app_cfg.ports[idx_port];
+
+	ptr_port->port_dirty = 1;
+}
+
+static void setup_ports(struct app_config *app_cfg, int cnt_ports)
+{
+	int idx_port;
+	int size_pktpool;
+	struct rte_eth_conf cfg_port;
+	struct rte_eth_dev_info dev_info;
+	char str_name[16];
+
+	memset(&cfg_port, 0, sizeof(cfg_port));
+	cfg_port.txmode.mq_mode = ETH_MQ_TX_NONE;
+
+	for (idx_port = 0; idx_port < cnt_ports; idx_port++) {
+		struct app_port *ptr_port = &app_cfg->ports[idx_port];
+
+		rte_eth_dev_info_get(idx_port, &dev_info);
+		size_pktpool = dev_info.rx_desc_lim.nb_max +
+			dev_info.tx_desc_lim.nb_max + PKTPOOL_EXTRA_SIZE;
+
+		snprintf(str_name, 16, "pkt_pool%i", idx_port);
+		ptr_port->pkt_pool = rte_pktmbuf_pool_create(
+			str_name,
+			size_pktpool, PKTPOOL_CACHE,
+			0,
+			RTE_MBUF_DEFAULT_BUF_SIZE,
+			rte_socket_id()
+			);
+		if (ptr_port->pkt_pool == NULL)
+			rte_exit(EXIT_FAILURE,
+				"rte_pktmbuf_pool_create failed"
+				);
+
+		printf("Init port %i..\n", idx_port);
+		ptr_port->port_active = 1;
+		ptr_port->port_dirty = 0;
+		ptr_port->idx_port = idx_port;
+
+		if (rte_eth_dev_configure(idx_port, 1, 1, &cfg_port) < 0)
+			rte_exit(EXIT_FAILURE,
+				 "rte_eth_dev_configure failed");
+		if (rte_eth_rx_queue_setup(
+			    idx_port, 0, PORT_RX_QUEUE_SIZE,
+			    rte_eth_dev_socket_id(idx_port), NULL,
+			    ptr_port->pkt_pool) < 0)
+			rte_exit(EXIT_FAILURE,
+				 "rte_eth_rx_queue_setup failed"
+				);
+		if (rte_eth_tx_queue_setup(
+			    idx_port, 0, PORT_TX_QUEUE_SIZE,
+			    rte_eth_dev_socket_id(idx_port), NULL) < 0)
+			rte_exit(EXIT_FAILURE,
+				 "rte_eth_tx_queue_setup failed"
+				);
+		if (rte_eth_dev_start(idx_port) < 0)
+			rte_exit(EXIT_FAILURE,
+				 "%s:%i: rte_eth_dev_start failed",
+				 __FILE__, __LINE__
+				);
+		rte_eth_macaddr_get(idx_port, &ptr_port->mac_addr);
+		rte_spinlock_init(&ptr_port->lock);
+	}
+}
+
+static void process_frame(struct app_port *ptr_port,
+	struct rte_mbuf *ptr_frame)
+{
+	struct ether_hdr *ptr_mac_hdr;
+
+	ptr_mac_hdr = rte_pktmbuf_mtod(ptr_frame, struct ether_hdr *);
+	ether_addr_copy(&ptr_mac_hdr->s_addr, &ptr_mac_hdr->d_addr);
+	ether_addr_copy(&ptr_port->mac_addr, &ptr_mac_hdr->s_addr);
+}
+
+static int slave_main(__attribute__((unused)) void *ptr_data)
+{
+	struct app_port *ptr_port;
+	struct rte_mbuf *ptr_frame;
+	struct txq_port *txq;
+
+	uint16_t cnt_recv_frames;
+	uint16_t idx_frame;
+	uint16_t cnt_sent;
+	uint16_t idx_port;
+	uint16_t lock_result;
+
+	while (app_cfg.exit_now == 0) {
+		for (idx_port = 0; idx_port < app_cfg.cnt_ports; idx_port++) {
+			/* Check that port is active and unlocked */
+			ptr_port = &app_cfg.ports[idx_port];
+			lock_result = rte_spinlock_trylock(&ptr_port->lock);
+			if (lock_result == 0)
+				continue;
+			if (ptr_port->port_active == 0) {
+				rte_spinlock_unlock(&ptr_port->lock);
+				continue;
+			}
+			txq = &ptr_port->txq;
+
+			/* MAC address was updated */
+			if (ptr_port->port_dirty == 1) {
+				rte_eth_macaddr_get(ptr_port->idx_port,
+					&ptr_port->mac_addr);
+				ptr_port->port_dirty = 0;
+			}
+
+			/* Incoming frames */
+			cnt_recv_frames = rte_eth_rx_burst(
+				ptr_port->idx_port, 0,
+				&txq->buf_frames[txq->cnt_unsent],
+				RTE_DIM(txq->buf_frames) - txq->cnt_unsent
+				);
+			if (cnt_recv_frames > 0) {
+				for (idx_frame = 0;
+					idx_frame < cnt_recv_frames;
+					idx_frame++) {
+					ptr_frame = txq->buf_frames[
+						idx_frame + txq->cnt_unsent];
+					process_frame(ptr_port, ptr_frame);
+				}
+				txq->cnt_unsent += cnt_recv_frames;
+			}
+
+			/* Outgoing frames */
+			if (txq->cnt_unsent > 0) {
+				cnt_sent = rte_eth_tx_burst(
+					ptr_port->idx_port, 0,
+					txq->buf_frames,
+					txq->cnt_unsent
+					);
+				/* Shuffle up unsent frame pointers */
+				for (idx_frame = cnt_sent;
+					idx_frame < txq->cnt_unsent;
+					idx_frame++)
+					txq->buf_frames[idx_frame - cnt_sent] =
+						txq->buf_frames[idx_frame];
+				txq->cnt_unsent -= cnt_sent;
+			}
+			rte_spinlock_unlock(&ptr_port->lock);
+		} /* end for( idx_port ) */
+	} /* end for(;;) */
+
+	return 0;
+}
+
+int main(int argc, char **argv)
+{
+	int cnt_args_parsed;
+	uint32_t id_core;
+	uint32_t cnt_ports;
+
+	/* Init runtime enviornment */
+	cnt_args_parsed = rte_eal_init(argc, argv);
+	if (cnt_args_parsed < 0)
+		rte_exit(EXIT_FAILURE, "rte_eal_init(): Failed");
+
+	cnt_ports = rte_eth_dev_count();
+	printf("Number of NICs: %i\n", cnt_ports);
+	if (cnt_ports == 0)
+		rte_exit(EXIT_FAILURE, "No available NIC ports!\n");
+	if (cnt_ports > MAX_PORTS) {
+		printf("Info: Using only %i of %i ports\n",
+			cnt_ports, MAX_PORTS
+			);
+		cnt_ports = MAX_PORTS;
+	}
+
+	setup_ports(&app_cfg, cnt_ports);
+
+	app_cfg.exit_now = 0;
+	app_cfg.cnt_ports = cnt_ports;
+
+	if (rte_lcore_count() < 2)
+		rte_exit(EXIT_FAILURE, "No available slave core!\n");
+	/* Assume there is an available slave.. */
+	id_core = rte_lcore_id();
+	id_core = rte_get_next_lcore(id_core, 1, 1);
+	rte_eal_remote_launch(slave_main, NULL, id_core);
+
+	ethapp_main();
+
+	app_cfg.exit_now = 1;
+	RTE_LCORE_FOREACH_SLAVE(id_core) {
+		if (rte_eal_wait_lcore(id_core) < 0)
+			return -1;
+	}
+
+	return 0;
+}
diff --git a/src/seastar/dpdk/examples/ethtool/lib/Makefile b/src/seastar/dpdk/examples/ethtool/lib/Makefile
new file mode 100644
index 00000000..266babad
--- /dev/null
+++ b/src/seastar/dpdk/examples/ethtool/lib/Makefile
@@ -0,0 +1,63 @@
+#   BSD LICENSE
+#
+#   Copyright(c) 2015 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.
+
+ifeq ($(RTE_SDK),)
+$(error "Please define RTE_SDK environment variable")
+endif
+
+# Default target, can be overwritten by command line or environment
+RTE_TARGET ?= x86_64-native-linuxapp-gcc
+
+include $(RTE_SDK)/mk/rte.vars.mk
+
+ifneq ($(CONFIG_RTE_EXEC_ENV),"linuxapp")
+$(error This application can only operate in a linuxapp environment, \
+please change the definition of the RTE_TARGET environment variable)
+endif
+
+# library name
+LIB = librte_ethtool.a
+
+LIBABIVER := 1
+
+# all source are stored in SRC-Y
+SRCS-y := rte_ethtool.c
+
+CFLAGS += -O3
+CFLAGS += $(WERROR_FLAGS)
+
+ifeq ($(CONFIG_RTE_BUILD_SHARED_LIB),y)
+ifeq ($(CONFIG_RTE_LIBRTE_IXGBE_PMD),y)
+LDLIBS += -lrte_pmd_ixgbe
+endif
+endif
+
+include $(RTE_SDK)/mk/rte.extlib.mk
diff --git a/src/seastar/dpdk/examples/ethtool/lib/rte_ethtool.c b/src/seastar/dpdk/examples/ethtool/lib/rte_ethtool.c
new file mode 100644
index 00000000..7e465206
--- /dev/null
+++ b/src/seastar/dpdk/examples/ethtool/lib/rte_ethtool.c
@@ -0,0 +1,446 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2016 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.
+ */
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+#include <rte_version.h>
+#include <rte_ethdev.h>
+#include <rte_ether.h>
+#ifdef RTE_LIBRTE_IXGBE_PMD
+#include <rte_pmd_ixgbe.h>
+#endif
+#include "rte_ethtool.h"
+
+#define PKTPOOL_SIZE 512
+#define PKTPOOL_CACHE 32
+
+
+int
+rte_ethtool_get_drvinfo(uint8_t port_id, struct ethtool_drvinfo *drvinfo)
+{
+	struct rte_eth_dev_info dev_info;
+	struct rte_dev_reg_info reg_info;
+	int n;
+	int ret;
+
+	if (drvinfo == NULL)
+		return -EINVAL;
+
+	RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV);
+
+	ret = rte_eth_dev_fw_version_get(port_id, drvinfo->fw_version,
+			      sizeof(drvinfo->fw_version));
+	if (ret < 0)
+		printf("firmware version get error: (%s)\n", strerror(-ret));
+	else if (ret > 0)
+		printf("Insufficient fw version buffer size, "
+		       "the minimun size should be %d\n", ret);
+
+	memset(&dev_info, 0, sizeof(dev_info));
+	rte_eth_dev_info_get(port_id, &dev_info);
+
+	snprintf(drvinfo->driver, sizeof(drvinfo->driver), "%s",
+		dev_info.driver_name);
+	snprintf(drvinfo->version, sizeof(drvinfo->version), "%s",
+		rte_version());
+	if (dev_info.pci_dev)
+		snprintf(drvinfo->bus_info, sizeof(drvinfo->bus_info),
+			"%04x:%02x:%02x.%x",
+			dev_info.pci_dev->addr.domain,
+			dev_info.pci_dev->addr.bus,
+			dev_info.pci_dev->addr.devid,
+			dev_info.pci_dev->addr.function);
+	else
+		snprintf(drvinfo->bus_info, sizeof(drvinfo->bus_info), "N/A");
+
+	memset(&reg_info, 0, sizeof(reg_info));
+	rte_eth_dev_get_reg_info(port_id, &reg_info);
+	n = reg_info.length;
+	if (n > 0)
+		drvinfo->regdump_len = n;
+	else
+		drvinfo->regdump_len = 0;
+
+	n = rte_eth_dev_get_eeprom_length(port_id);
+	if (n > 0)
+		drvinfo->eedump_len = n;
+	else
+		drvinfo->eedump_len = 0;
+
+	drvinfo->n_stats = sizeof(struct rte_eth_stats) / sizeof(uint64_t);
+	drvinfo->testinfo_len = 0;
+
+	return 0;
+}
+
+int
+rte_ethtool_get_regs_len(uint8_t port_id)
+{
+	struct rte_dev_reg_info reg_info;
+	int ret;
+
+	memset(&reg_info, 0, sizeof(reg_info));
+
+	ret = rte_eth_dev_get_reg_info(port_id, &reg_info);
+	if (ret)
+		return ret;
+
+	return reg_info.length * reg_info.width;
+}
+
+int
+rte_ethtool_get_regs(uint8_t port_id, struct ethtool_regs *regs, void *data)
+{
+	struct rte_dev_reg_info reg_info;
+	int status;
+
+	if (regs == NULL || data == NULL)
+		return -EINVAL;
+
+	reg_info.data = data;
+	reg_info.length = 0;
+
+	status = rte_eth_dev_get_reg_info(port_id, &reg_info);
+	if (status)
+		return status;
+	regs->version = reg_info.version;
+
+	return 0;
+}
+
+int
+rte_ethtool_get_link(uint8_t port_id)
+{
+	struct rte_eth_link link;
+
+	RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV);
+	rte_eth_link_get(port_id, &link);
+	return link.link_status;
+}
+
+int
+rte_ethtool_get_eeprom_len(uint8_t port_id)
+{
+	return rte_eth_dev_get_eeprom_length(port_id);
+}
+
+int
+rte_ethtool_get_eeprom(uint8_t port_id, struct ethtool_eeprom *eeprom,
+	void *words)
+{
+	struct rte_dev_eeprom_info eeprom_info;
+	int status;
+
+	if (eeprom == NULL || words == NULL)
+		return -EINVAL;
+
+	eeprom_info.offset = eeprom->offset;
+	eeprom_info.length = eeprom->len;
+	eeprom_info.data = words;
+
+	status = rte_eth_dev_get_eeprom(port_id, &eeprom_info);
+	if (status)
+		return status;
+
+	eeprom->magic = eeprom_info.magic;
+
+	return 0;
+}
+
+int
+rte_ethtool_set_eeprom(uint8_t port_id, struct ethtool_eeprom *eeprom,
+	void *words)
+{
+	struct rte_dev_eeprom_info eeprom_info;
+	int status;
+
+	if (eeprom == NULL || words == NULL || eeprom->offset >= eeprom->len)
+		return -EINVAL;
+
+	eeprom_info.offset = eeprom->offset;
+	eeprom_info.length = eeprom->len;
+	eeprom_info.data = words;
+
+	status = rte_eth_dev_set_eeprom(port_id, &eeprom_info);
+	if (status)
+		return status;
+
+	eeprom->magic = eeprom_info.magic;
+
+	return 0;
+}
+
+int
+rte_ethtool_get_pauseparam(uint8_t port_id,
+	struct ethtool_pauseparam *pause_param)
+{
+	struct rte_eth_fc_conf fc_conf;
+	int status;
+
+	if (pause_param == NULL)
+		return -EINVAL;
+
+	status = rte_eth_dev_flow_ctrl_get(port_id, &fc_conf);
+	if (status)
+		return status;
+
+	pause_param->tx_pause = 0;
+	pause_param->rx_pause = 0;
+	switch (fc_conf.mode) {
+	case RTE_FC_RX_PAUSE:
+		pause_param->rx_pause = 1;
+		break;
+	case RTE_FC_TX_PAUSE:
+		pause_param->tx_pause = 1;
+		break;
+	case RTE_FC_FULL:
+		pause_param->rx_pause = 1;
+		pause_param->tx_pause = 1;
+	default:
+		/* dummy block to avoid compiler warning */
+		break;
+	}
+	pause_param->autoneg = (uint32_t)fc_conf.autoneg;
+
+	return 0;
+}
+
+int
+rte_ethtool_set_pauseparam(uint8_t port_id,
+	struct ethtool_pauseparam *pause_param)
+{
+	struct rte_eth_fc_conf fc_conf;
+	int status;
+
+	if (pause_param == NULL)
+		return -EINVAL;
+
+	/*
+	 * Read device flow control parameter first since
+	 * ethtool set_pauseparam op doesn't have all the information.
+	 * as defined in struct rte_eth_fc_conf.
+	 * This API requires the device to support both
+	 * rte_eth_dev_flow_ctrl_get and rte_eth_dev_flow_ctrl_set, otherwise
+	 * return -ENOTSUP
+	 */
+	status = rte_eth_dev_flow_ctrl_get(port_id, &fc_conf);
+	if (status)
+		return status;
+
+	fc_conf.autoneg = (uint8_t)pause_param->autoneg;
+
+	if (pause_param->tx_pause) {
+		if (pause_param->rx_pause)
+			fc_conf.mode = RTE_FC_FULL;
+		else
+			fc_conf.mode = RTE_FC_TX_PAUSE;
+	} else {
+		if (pause_param->rx_pause)
+			fc_conf.mode = RTE_FC_RX_PAUSE;
+		else
+			fc_conf.mode = RTE_FC_NONE;
+	}
+
+	status = rte_eth_dev_flow_ctrl_set(port_id, &fc_conf);
+	if (status)
+		return status;
+
+	return 0;
+}
+
+int
+rte_ethtool_net_open(uint8_t port_id)
+{
+	rte_eth_dev_stop(port_id);
+
+	return rte_eth_dev_start(port_id);
+}
+
+int
+rte_ethtool_net_stop(uint8_t port_id)
+{
+	RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV);
+	rte_eth_dev_stop(port_id);
+
+	return 0;
+}
+
+int
+rte_ethtool_net_get_mac_addr(uint8_t port_id, struct ether_addr *addr)
+{
+	RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV);
+	if (addr == NULL)
+		return -EINVAL;
+	rte_eth_macaddr_get(port_id, addr);
+
+	return 0;
+}
+
+int
+rte_ethtool_net_set_mac_addr(uint8_t port_id, struct ether_addr *addr)
+{
+	if (addr == NULL)
+		return -EINVAL;
+	return rte_eth_dev_default_mac_addr_set(port_id, addr);
+}
+
+int
+rte_ethtool_net_validate_addr(uint8_t port_id __rte_unused,
+	struct ether_addr *addr)
+{
+	if (addr == NULL)
+		return -EINVAL;
+	return is_valid_assigned_ether_addr(addr);
+}
+
+int
+rte_ethtool_net_change_mtu(uint8_t port_id, int mtu)
+{
+	if (mtu < 0 || mtu > UINT16_MAX)
+		return -EINVAL;
+	return rte_eth_dev_set_mtu(port_id, (uint16_t)mtu);
+}
+
+int
+rte_ethtool_net_get_stats64(uint8_t port_id, struct rte_eth_stats *stats)
+{
+	if (stats == NULL)
+		return -EINVAL;
+	return rte_eth_stats_get(port_id, stats);
+}
+
+int
+rte_ethtool_net_vlan_rx_add_vid(uint8_t port_id, uint16_t vid)
+{
+	return rte_eth_dev_vlan_filter(port_id, vid, 1);
+}
+
+int
+rte_ethtool_net_vlan_rx_kill_vid(uint8_t port_id, uint16_t vid)
+{
+	return rte_eth_dev_vlan_filter(port_id, vid, 0);
+}
+
+/*
+ * The set_rx_mode provides driver-specific rx mode setting.
+ * This implementation implements rx mode setting based upon
+ * ixgbe/igb drivers. Further improvement is to provide a
+ * callback op field over struct rte_eth_dev::dev_ops so each
+ * driver can register device-specific implementation
+ */
+int
+rte_ethtool_net_set_rx_mode(uint8_t port_id)
+{
+	uint16_t num_vfs;
+	struct rte_eth_dev_info dev_info;
+	uint16_t vf;
+
+	memset(&dev_info, 0, sizeof(dev_info));
+	rte_eth_dev_info_get(port_id, &dev_info);
+	num_vfs = dev_info.max_vfs;
+
+	/* Set VF vf_rx_mode, VF unsupport status is discard */
+	for (vf = 0; vf < num_vfs; vf++) {
+#ifdef RTE_LIBRTE_IXGBE_PMD
+		rte_pmd_ixgbe_set_vf_rxmode(port_id, vf,
+			ETH_VMDQ_ACCEPT_UNTAG, 0);
+#endif
+	}
+
+	/* Enable Rx vlan filter, VF unspport status is discard */
+	rte_eth_dev_set_vlan_offload(port_id, ETH_VLAN_FILTER_MASK);
+
+	return 0;
+}
+
+
+int
+rte_ethtool_get_ringparam(uint8_t port_id,
+	struct ethtool_ringparam *ring_param)
+{
+	struct rte_eth_dev_info dev_info;
+	struct rte_eth_rxq_info rx_qinfo;
+	struct rte_eth_txq_info tx_qinfo;
+	int stat;
+
+	if (ring_param == NULL)
+		return -EINVAL;
+
+	rte_eth_dev_info_get(port_id, &dev_info);
+
+	stat = rte_eth_rx_queue_info_get(port_id, 0, &rx_qinfo);
+	if (stat != 0)
+		return stat;
+
+	stat = rte_eth_tx_queue_info_get(port_id, 0, &tx_qinfo);
+	if (stat != 0)
+		return stat;
+
+	memset(ring_param, 0, sizeof(*ring_param));
+	ring_param->rx_pending = rx_qinfo.nb_desc;
+	ring_param->rx_max_pending = dev_info.rx_desc_lim.nb_max;
+	ring_param->tx_pending = tx_qinfo.nb_desc;
+	ring_param->tx_max_pending = dev_info.tx_desc_lim.nb_max;
+
+	return 0;
+}
+
+
+int
+rte_ethtool_set_ringparam(uint8_t port_id,
+	struct ethtool_ringparam *ring_param)
+{
+	struct rte_eth_rxq_info rx_qinfo;
+	int stat;
+
+	if (ring_param == NULL)
+		return -EINVAL;
+
+	stat = rte_eth_rx_queue_info_get(port_id, 0, &rx_qinfo);
+	if (stat != 0)
+		return stat;
+
+	rte_eth_dev_stop(port_id);
+
+	stat = rte_eth_tx_queue_setup(port_id, 0, ring_param->tx_pending,
+		rte_socket_id(), NULL);
+	if (stat != 0)
+		return stat;
+
+	stat = rte_eth_rx_queue_setup(port_id, 0, ring_param->rx_pending,
+		rte_socket_id(), NULL, rx_qinfo.mp);
+	if (stat != 0)
+		return stat;
+
+	return rte_eth_dev_start(port_id);
+}
diff --git a/src/seastar/dpdk/examples/ethtool/lib/rte_ethtool.h b/src/seastar/dpdk/examples/ethtool/lib/rte_ethtool.h
new file mode 100644
index 00000000..2e79d453
--- /dev/null
+++ b/src/seastar/dpdk/examples/ethtool/lib/rte_ethtool.h
@@ -0,0 +1,410 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2015 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 _RTE_ETHTOOL_H_
+#define _RTE_ETHTOOL_H_
+
+/*
+ * This new interface is designed to provide a user-space shim layer for
+ * Ethtool and Netdevice op API.
+ *
+ * rte_ethtool_get_driver:          ethtool_ops::get_driverinfo
+ * rte_ethtool_get_link:            ethtool_ops::get_link
+ * rte_ethtool_get_regs_len:        ethtool_ops::get_regs_len
+ * rte_ethtool_get_regs:            ethtool_ops::get_regs
+ * rte_ethtool_get_eeprom_len:      ethtool_ops::get_eeprom_len
+ * rte_ethtool_get_eeprom:          ethtool_ops::get_eeprom
+ * rte_ethtool_set_eeprom:          ethtool_ops::set_eeprom
+ * rte_ethtool_get_pauseparam:      ethtool_ops::get_pauseparam
+ * rte_ethtool_set_pauseparam:      ethtool_ops::set_pauseparam
+ *
+ * rte_ethtool_net_open:            net_device_ops::ndo_open
+ * rte_ethtool_net_stop:            net_device_ops::ndo_stop
+ * rte_ethtool_net_set_mac_addr:    net_device_ops::ndo_set_mac_address
+ * rte_ethtool_net_validate_addr:   net_device_ops::ndo_validate_addr
+ * rte_ethtool_net_change_mtu:      net_device_ops::rte_net_change_mtu
+ * rte_ethtool_net_get_stats64:     net_device_ops::ndo_get_stats64
+ * rte_ethtool_net_vlan_rx_add_vid  net_device_ops::ndo_vlan_rx_add_vid
+ * rte_ethtool_net_vlan_rx_kill_vid net_device_ops::ndo_vlan_rx_kill_vid
+ * rte_ethtool_net_set_rx_mode      net_device_ops::ndo_set_rx_mode
+ *
+ */
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+#include <rte_ethdev.h>
+#include <linux/ethtool.h>
+
+/**
+ * Retrieve the Ethernet device driver information according to
+ * attributes described by ethtool data structure, ethtool_drvinfo.
+ *
+ * @param port_id
+ *   The port identifier of the Ethernet device.
+ * @param drvinfo
+ *   A pointer to get driver information
+ * @return
+ *   - (0) if successful.
+ *   - (-ENODEV) if *port_id* invalid.
+ */
+int rte_ethtool_get_drvinfo(uint8_t port_id, struct ethtool_drvinfo *drvinfo);
+
+/**
+ * Retrieve the Ethernet device register length in bytes.
+ *
+ * @param port_id
+ *   The port identifier of the Ethernet device.
+ * @return
+ *   - (> 0) # of device registers (in bytes) available for dump
+ *   - (0) no registers available for dump.
+ *   - (-ENOTSUP) if hardware doesn't support.
+ *   - (-ENODEV) if *port_id* invalid.
+ *   - others depends on the specific operations implementation.
+ */
+int rte_ethtool_get_regs_len(uint8_t port_id);
+
+/**
+ * Retrieve the Ethernet device register information according to
+ * attributes described by ethtool data structure, ethtool_regs
+ *
+ * @param port_id
+ *   The port identifier of the Ethernet device.
+ * @param reg
+ *   A pointer to ethtool_regs that has register information
+ * @param data
+ *   A pointer to a buffer that is used to retrieve device register content
+ * @return
+ *   - (0) if successful.
+ *   - (-ENOTSUP) if hardware doesn't support.
+ *   - (-ENODEV) if *port_id* invalid.
+ *   - others depends on the specific operations implementation.
+ */
+int rte_ethtool_get_regs(uint8_t port_id, struct ethtool_regs *regs,
+			    void *data);
+
+/**
+ * Retrieve the Ethernet device link status
+ *
+ * @param port_id
+ *   The port identifier of the Ethernet device.
+ * @return
+ *   - (1) if link up.
+ *   - (0) if link down.
+ *   - (-ENOTSUP) if hardware doesn't support.
+ *   - (-ENODEV) if *port_id* invalid.
+ *   - (-EINVAL) if parameters invalid.
+ *   - others depends on the specific operations implementation.
+ */
+int rte_ethtool_get_link(uint8_t port_id);
+
+/**
+ * Retrieve the Ethernet device EEPROM size
+ *
+ * @param port_id
+ *   The port identifier of the Ethernet device.
+ * @return
+ *	 - (> 0) device EEPROM size in bytes
+ *   - (0) device has NO EEPROM
+ *   - (-ENOTSUP) if hardware doesn't support.
+ *   - (-ENODEV) if *port_id* invalid.
+ *   - others depends on the specific operations implementation.
+ */
+int rte_ethtool_get_eeprom_len(uint8_t port_id);
+
+/**
+ * Retrieve EEPROM content based upon eeprom range described in ethtool
+ * data structure, ethtool_eeprom
+ *
+ * @param port_id
+ *   The port identifier of the Ethernet device.
+ * @param eeprom
+ *	 The pointer of ethtool_eeprom that provides eeprom range
+ * @param words
+ *	 A buffer that holds data read from eeprom
+ * @return
+ *   - (0) if successful.
+ *   - (-ENOTSUP) if hardware doesn't support.
+ *   - (-ENODEV) if *port_id* invalid.
+ *   - others depends on the specific operations implementation.
+ */
+int rte_ethtool_get_eeprom(uint8_t port_id, struct ethtool_eeprom *eeprom,
+			      void *words);
+
+/**
+ * Setting EEPROM content based upon eeprom range described in ethtool
+ * data structure, ethtool_eeprom
+ *
+ * @param port_id
+ *   The port identifier of the Ethernet device.
+ * @param eeprom
+ *	 The pointer of ethtool_eeprom that provides eeprom range
+ * @param words
+ *	 A buffer that holds data to be written into eeprom
+ * @return
+ *   - (0) if successful.
+ *   - (-ENOTSUP) if hardware doesn't support.
+ *   - (-ENODEV) if *port_id* invalid.
+ *   - (-EINVAL) if parameters invalid.
+ *   - others depends on the specific operations implementation.
+ */
+int rte_ethtool_set_eeprom(uint8_t port_id, struct ethtool_eeprom *eeprom,
+			      void *words);
+
+/**
+ * Retrieve the Ethernet device pause frame configuration according to
+ * parameter attributes desribed by ethtool data structure,
+ * ethtool_pauseparam.
+ *
+ * @param port_id
+ *   The port identifier of the Ethernet device.
+ * @param pause_param
+ *	 The pointer of ethtool_coalesce that gets pause frame
+ *	 configuration parameters
+ * @return
+ *   - (0) if successful.
+ *   - (-ENOTSUP) if hardware doesn't support.
+ *   - (-ENODEV) if *port_id* invalid.
+ *   - (-EINVAL) if parameters invalid.
+ *   - others depends on the specific operations implementation.
+ */
+int rte_ethtool_get_pauseparam(uint8_t port_id,
+				   struct ethtool_pauseparam *pause_param);
+
+/**
+ * Setting the Ethernet device pause frame configuration according to
+ * parameter attributes desribed by ethtool data structure, ethtool_pauseparam.
+ *
+ * @param port_id
+ *   The port identifier of the Ethernet device.
+ * @param pause_param
+ *	 The pointer of ethtool_coalesce that gets ring configuration parameters
+ * @return
+ *   - (0) if successful.
+ *   - (-ENOTSUP) if hardware doesn't support.
+ *   - (-ENODEV) if *port_id* invalid.
+ *   - (-EINVAL) if parameters invalid.
+ *   - others depends on the specific operations implementation.
+ */
+int rte_ethtool_set_pauseparam(uint8_t port_id,
+				   struct ethtool_pauseparam *param);
+
+/**
+ * Start the Ethernet device.
+ *
+ * @param port_id
+ *   The port identifier of the Ethernet device.
+ * @return
+ *   - (0) if successful.
+ *   - (-ENOTSUP) if hardware doesn't support.
+ *   - (-ENODEV) if *port_id* invalid.
+ *   - others depends on the specific operations implementation.
+ */
+int rte_ethtool_net_open(uint8_t port_id);
+
+/**
+ * Stop the Ethernet device.
+ *
+ * @param port_id
+ *   The port identifier of the Ethernet device.
+ * @return
+ *   - (0) if successful.
+ *   - (-ENODEV) if *port_id* invalid.
+ */
+int rte_ethtool_net_stop(uint8_t port_id);
+
+/**
+ * Get the Ethernet device MAC address.
+ *
+ * @param port_id
+ *   The port identifier of the Ethernet device.
+ * @param addr
+ *	 MAC address of the Ethernet device.
+ * @return
+ *   - (0) if successful.
+ *   - (-ENODEV) if *port_id* invalid.
+ */
+int rte_ethtool_net_get_mac_addr(uint8_t port_id, struct ether_addr *addr);
+
+/**
+ * Setting the Ethernet device MAC address.
+ *
+ * @param port_id
+ *   The port identifier of the Ethernet device.
+ * @param addr
+ *	 The new MAC addr.
+ * @return
+ *   - (0) if successful.
+ *   - (-ENOTSUP) if hardware doesn't support.
+ *   - (-ENODEV) if *port_id* invalid.
+ *   - (-EINVAL) if parameters invalid.
+ *   - others depends on the specific operations implementation.
+ */
+int rte_ethtool_net_set_mac_addr(uint8_t port_id, struct ether_addr *addr);
+
+/**
+ * Validate if the provided MAC address is valid unicast address
+ *
+ * @param port_id
+ *   The port identifier of the Ethernet device.
+ * @param addr
+ *	 A pointer to a buffer (6-byte, 48bit) for the target MAC address
+ * @return
+ *   - (0) if successful.
+ *   - (-ENOTSUP) if hardware doesn't support.
+ *   - (-ENODEV) if *port_id* invalid.
+ *   - (-EINVAL) if parameters invalid.
+ *   - others depends on the specific operations implementation.
+ */
+int rte_ethtool_net_validate_addr(uint8_t port_id, struct ether_addr *addr);
+
+/**
+ * Setting the Ethernet device maximum Tx unit.
+ *
+ * @param port_id
+ *   The port identifier of the Ethernet device.
+ * @param mtu
+ *	 New MTU
+ * @return
+ *   - (0) if successful.
+ *   - (-ENOTSUP) if hardware doesn't support.
+ *   - (-ENODEV) if *port_id* invalid.
+ *   - (-EINVAL) if parameters invalid.
+ *   - others depends on the specific operations implementation.
+ */
+int rte_ethtool_net_change_mtu(uint8_t port_id, int mtu);
+
+/**
+ * Retrieve the Ethernet device traffic statistics
+ *
+ * @param port_id
+ *   The port identifier of the Ethernet device.
+ * @param stats
+ *	 A pointer to struct rte_eth_stats for statistics parameters
+ * @return
+ *   - (0) if successful.
+ *   - (-ENOTSUP) if hardware doesn't support.
+ *   - (-ENODEV) if *port_id* invalid.
+ *   - (-EINVAL) if parameters invalid.
+ *   - others depends on the specific operations implementation.
+ */
+int rte_ethtool_net_get_stats64(uint8_t port_id, struct rte_eth_stats *stats);
+
+/**
+ * Update the Ethernet device VLAN filter with new vid
+ *
+ * @param port_id
+ *   The port identifier of the Ethernet device.
+ * @param vid
+ *	 A new VLAN id
+ * @return
+ *   - (0) if successful.
+ *   - (-ENOTSUP) if hardware doesn't support.
+ *   - (-ENODEV) if *port_id* invalid.
+ *   - others depends on the specific operations implementation.
+ */
+int rte_ethtool_net_vlan_rx_add_vid(uint8_t port_id, uint16_t vid);
+
+/**
+ * Remove VLAN id from Ethernet device.
+ *
+ * @param port_id
+ *   The port identifier of the Ethernet device.
+ * @param vid
+ *	 A new VLAN id
+ * @return
+ *   - (0) if successful.
+ *   - (-ENOTSUP) if hardware doesn't support.
+ *   - (-ENODEV) if *port_id* invalid.
+ *   - others depends on the specific operations implementation.
+ */
+int rte_ethtool_net_vlan_rx_kill_vid(uint8_t port_id, uint16_t vid);
+
+/**
+ * Setting the Ethernet device rx mode.
+ *
+ * @param port_id
+ *   The port identifier of the Ethernet device.
+ * @return
+ *   - (0) if successful.
+ *   - (-ENOTSUP) if hardware doesn't support.
+ *   - (-ENODEV) if *port_id* invalid.
+ *   - others depends on the specific operations implementation.
+ */
+int rte_ethtool_net_set_rx_mode(uint8_t port_id);
+
+/**
+ * Getting ring paramaters for Ethernet device.
+ *
+ * @param port_id
+ *   The port identifier of the Ethernet device.
+ * @param ring_param
+ *   Pointer to struct ethrool_ringparam to receive parameters.
+ * @return
+ *   - (0) if successful.
+ *   - (-ENOTSUP) if hardware doesn't support.
+ *   - (-ENODEV) if *port_id* invalid.
+ *   - others depends on the specific operations implementation.
+ * @note
+ *   Only the tx_pending and rx_pending fields of struct ethtool_ringparam
+ *   are used, and the function only gets parameters for queue 0.
+ */
+int rte_ethtool_get_ringparam(uint8_t port_id,
+	struct ethtool_ringparam *ring_param);
+
+/**
+ * Setting ring paramaters for Ethernet device.
+ *
+ * @param port_id
+ *   The port identifier of the Ethernet device.
+ * @param ring_param
+ *   Pointer to struct ethrool_ringparam with parameters to set.
+ * @return
+ *   - (0) if successful.
+ *   - (-ENOTSUP) if hardware doesn't support.
+ *   - (-ENODEV) if *port_id* invalid.
+ *   - others depends on the specific operations implementation.
+ * @note
+ *   Only the tx_pending and rx_pending fields of struct ethtool_ringparam
+ *   are used, and the function only sets parameters for queue 0.
+ */
+int rte_ethtool_set_ringparam(uint8_t port_id,
+	struct ethtool_ringparam *ring_param);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RTE_ETHTOOL_H_ */