1 files changed, 787 insertions, 0 deletions

diff --git a/common/VIL/pipeline_passthrough/pipeline_passthrough_be.c b/common/VIL/pipeline_passthrough/pipeline_passthrough_be.c
new file mode 100644
index 00000000..5b74d75b
--- /dev/null
+++ b/common/VIL/pipeline_passthrough/pipeline_passthrough_be.c
@@ -0,0 +1,787 @@
+/*
+// Copyright (c) 2017 Intel Corporation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+*/
+
+#include <string.h>
+
+#include <rte_common.h>
+#include <rte_malloc.h>
+#include <rte_byteorder.h>
+#include <rte_table_stub.h>
+#include <rte_table_hash.h>
+#include <rte_pipeline.h>
+
+#include "pipeline_passthrough_be.h"
+#include "pipeline_actions_common.h"
+#include "parser.h"
+#include "hash_func.h"
+
+struct pipeline_passthrough {
+	struct pipeline p;
+	struct pipeline_passthrough_params params;
+	rte_table_hash_op_hash f_hash;
+} __rte_cache_aligned;
+
+static pipeline_msg_req_handler handlers[] = {
+	[PIPELINE_MSG_REQ_PING] =
+		pipeline_msg_req_ping_handler,
+	[PIPELINE_MSG_REQ_STATS_PORT_IN] =
+		pipeline_msg_req_stats_port_in_handler,
+	[PIPELINE_MSG_REQ_STATS_PORT_OUT] =
+		pipeline_msg_req_stats_port_out_handler,
+	[PIPELINE_MSG_REQ_STATS_TABLE] =
+		pipeline_msg_req_stats_table_handler,
+	[PIPELINE_MSG_REQ_PORT_IN_ENABLE] =
+		pipeline_msg_req_port_in_enable_handler,
+	[PIPELINE_MSG_REQ_PORT_IN_DISABLE] =
+		pipeline_msg_req_port_in_disable_handler,
+	[PIPELINE_MSG_REQ_CUSTOM] =
+		pipeline_msg_req_invalid_handler,
+};
+
+static inline __attribute__((always_inline)) void
+pkt_work(
+	struct rte_mbuf *pkt,
+	void *arg,
+	uint32_t dma_size,
+	uint32_t hash_enabled,
+	uint32_t lb_hash,
+	uint32_t port_out_pow2)
+{
+	struct pipeline_passthrough *p = arg;
+
+	uint64_t *dma_dst = RTE_MBUF_METADATA_UINT64_PTR(pkt,
+		p->params.dma_dst_offset);
+	uint64_t *dma_src = RTE_MBUF_METADATA_UINT64_PTR(pkt,
+		p->params.dma_src_offset);
+	uint64_t *dma_mask = (uint64_t *) p->params.dma_src_mask;
+	uint32_t *dma_hash = RTE_MBUF_METADATA_UINT32_PTR(pkt,
+		p->params.dma_hash_offset);
+	uint32_t i;
+
+	/* Read (dma_src), compute (dma_dst), write (dma_dst) */
+	for (i = 0; i < (dma_size / 8); i++)
+		dma_dst[i] = dma_src[i] & dma_mask[i];
+
+	/* Read (dma_dst), compute (hash), write (hash) */
+	if (hash_enabled) {
+		uint32_t hash = p->f_hash(dma_dst, dma_size, 0);
+		*dma_hash = hash;
+
+		if (lb_hash) {
+			uint32_t port_out;
+
+			if (port_out_pow2)
+				port_out
+					= hash & (p->p.n_ports_out - 1);
+			else
+				port_out
+					= hash % p->p.n_ports_out;
+
+			rte_pipeline_port_out_packet_insert(p->p.p,
+				port_out, pkt);
+		}
+	}
+}
+
+static inline __attribute__((always_inline)) void
+pkt4_work(
+	struct rte_mbuf **pkts,
+	void *arg,
+	uint32_t dma_size,
+	uint32_t hash_enabled,
+	uint32_t lb_hash,
+	uint32_t port_out_pow2)
+{
+	struct pipeline_passthrough *p = arg;
+
+	uint64_t *dma_dst0 = RTE_MBUF_METADATA_UINT64_PTR(pkts[0],
+		p->params.dma_dst_offset);
+	uint64_t *dma_dst1 = RTE_MBUF_METADATA_UINT64_PTR(pkts[1],
+		p->params.dma_dst_offset);
+	uint64_t *dma_dst2 = RTE_MBUF_METADATA_UINT64_PTR(pkts[2],
+		p->params.dma_dst_offset);
+	uint64_t *dma_dst3 = RTE_MBUF_METADATA_UINT64_PTR(pkts[3],
+		p->params.dma_dst_offset);
+
+	uint64_t *dma_src0 = RTE_MBUF_METADATA_UINT64_PTR(pkts[0],
+		p->params.dma_src_offset);
+	uint64_t *dma_src1 = RTE_MBUF_METADATA_UINT64_PTR(pkts[1],
+		p->params.dma_src_offset);
+	uint64_t *dma_src2 = RTE_MBUF_METADATA_UINT64_PTR(pkts[2],
+		p->params.dma_src_offset);
+	uint64_t *dma_src3 = RTE_MBUF_METADATA_UINT64_PTR(pkts[3],
+		p->params.dma_src_offset);
+
+	uint64_t *dma_mask = (uint64_t *) p->params.dma_src_mask;
+
+	uint32_t *dma_hash0 = RTE_MBUF_METADATA_UINT32_PTR(pkts[0],
+		p->params.dma_hash_offset);
+	uint32_t *dma_hash1 = RTE_MBUF_METADATA_UINT32_PTR(pkts[1],
+		p->params.dma_hash_offset);
+	uint32_t *dma_hash2 = RTE_MBUF_METADATA_UINT32_PTR(pkts[2],
+		p->params.dma_hash_offset);
+	uint32_t *dma_hash3 = RTE_MBUF_METADATA_UINT32_PTR(pkts[3],
+		p->params.dma_hash_offset);
+
+	uint32_t i;
+
+	/* Read (dma_src), compute (dma_dst), write (dma_dst) */
+	for (i = 0; i < (dma_size / 8); i++) {
+		dma_dst0[i] = dma_src0[i] & dma_mask[i];
+		dma_dst1[i] = dma_src1[i] & dma_mask[i];
+		dma_dst2[i] = dma_src2[i] & dma_mask[i];
+		dma_dst3[i] = dma_src3[i] & dma_mask[i];
+	}
+
+	/* Read (dma_dst), compute (hash), write (hash) */
+	if (hash_enabled) {
+		uint32_t hash0 = p->f_hash(dma_dst0, dma_size, 0);
+		uint32_t hash1 = p->f_hash(dma_dst1, dma_size, 0);
+		uint32_t hash2 = p->f_hash(dma_dst2, dma_size, 0);
+		uint32_t hash3 = p->f_hash(dma_dst3, dma_size, 0);
+
+		*dma_hash0 = hash0;
+		*dma_hash1 = hash1;
+		*dma_hash2 = hash2;
+		*dma_hash3 = hash3;
+
+		if (lb_hash) {
+			uint32_t port_out0, port_out1, port_out2, port_out3;
+
+			if (port_out_pow2) {
+				port_out0
+					= hash0 & (p->p.n_ports_out - 1);
+				port_out1
+					= hash1 & (p->p.n_ports_out - 1);
+				port_out2
+					= hash2 & (p->p.n_ports_out - 1);
+				port_out3
+					= hash3 & (p->p.n_ports_out - 1);
+			} else {
+				port_out0
+					= hash0 % p->p.n_ports_out;
+				port_out1
+					= hash1 % p->p.n_ports_out;
+				port_out2
+					= hash2 % p->p.n_ports_out;
+				port_out3
+					= hash3 % p->p.n_ports_out;
+			}
+			rte_pipeline_port_out_packet_insert(p->p.p,
+				port_out0, pkts[0]);
+			rte_pipeline_port_out_packet_insert(p->p.p,
+				port_out1, pkts[1]);
+			rte_pipeline_port_out_packet_insert(p->p.p,
+				port_out2, pkts[2]);
+			rte_pipeline_port_out_packet_insert(p->p.p,
+				port_out3, pkts[3]);
+		}
+	}
+}
+
+#define PKT_WORK(dma_size, hash_enabled, lb_hash, port_pow2)	\
+static inline void						\
+pkt_work_size##dma_size##_hash##hash_enabled		\
+	##_lb##lb_hash##_pw##port_pow2(			\
+	struct rte_mbuf *pkt,					\
+	void *arg)						\
+{								\
+	pkt_work(pkt, arg, dma_size, hash_enabled, lb_hash, port_pow2);	\
+}
+
+#define PKT4_WORK(dma_size, hash_enabled, lb_hash, port_pow2)	\
+static inline void						\
+pkt4_work_size##dma_size##_hash##hash_enabled			\
+	##_lb##lb_hash##_pw##port_pow2(			\
+	struct rte_mbuf **pkts,					\
+	void *arg)						\
+{								\
+	pkt4_work(pkts, arg, dma_size, hash_enabled, lb_hash, port_pow2); \
+}
+
+#define port_in_ah(dma_size, hash_enabled, lb_hash, port_pow2)	\
+PKT_WORK(dma_size, hash_enabled, lb_hash, port_pow2)			\
+PKT4_WORK(dma_size, hash_enabled, lb_hash, port_pow2)			\
+PIPELINE_PORT_IN_AH(port_in_ah_size##dma_size##_hash	\
+	##hash_enabled##_lb##lb_hash##_pw##port_pow2,		\
+	pkt_work_size##dma_size##_hash##hash_enabled		\
+	##_lb##lb_hash##_pw##port_pow2,			\
+	pkt4_work_size##dma_size##_hash##hash_enabled		\
+	##_lb##lb_hash##_pw##port_pow2)
+
+
+#define port_in_ah_lb(dma_size, hash_enabled, lb_hash, port_pow2) \
+PKT_WORK(dma_size, hash_enabled, lb_hash, port_pow2)		\
+PKT4_WORK(dma_size, hash_enabled, lb_hash, port_pow2)	\
+PIPELINE_PORT_IN_AH_HIJACK_ALL(						\
+	port_in_ah_size##dma_size##_hash##hash_enabled		\
+	##_lb##lb_hash##_pw##port_pow2,			\
+	pkt_work_size##dma_size##_hash##hash_enabled		\
+	##_lb##lb_hash##_pw##port_pow2,	\
+	pkt4_work_size##dma_size##_hash##hash_enabled		\
+	##_lb##lb_hash##_pw##port_pow2)
+
+/* Port in AH (dma_size, hash_enabled, lb_hash, port_pow2) */
+
+port_in_ah(8, 0, 0, 0)
+port_in_ah(8, 1, 0, 0)
+port_in_ah_lb(8, 1, 1, 0)
+port_in_ah_lb(8, 1, 1, 1)
+
+port_in_ah(16, 0, 0, 0)
+port_in_ah(16, 1, 0, 0)
+port_in_ah_lb(16, 1, 1, 0)
+port_in_ah_lb(16, 1, 1, 1)
+
+port_in_ah(24, 0, 0, 0)
+port_in_ah(24, 1, 0, 0)
+port_in_ah_lb(24, 1, 1, 0)
+port_in_ah_lb(24, 1, 1, 1)
+
+port_in_ah(32, 0, 0, 0)
+port_in_ah(32, 1, 0, 0)
+port_in_ah_lb(32, 1, 1, 0)
+port_in_ah_lb(32, 1, 1, 1)
+
+port_in_ah(40, 0, 0, 0)
+port_in_ah(40, 1, 0, 0)
+port_in_ah_lb(40, 1, 1, 0)
+port_in_ah_lb(40, 1, 1, 1)
+
+port_in_ah(48, 0, 0, 0)
+port_in_ah(48, 1, 0, 0)
+port_in_ah_lb(48, 1, 1, 0)
+port_in_ah_lb(48, 1, 1, 1)
+
+port_in_ah(56, 0, 0, 0)
+port_in_ah(56, 1, 0, 0)
+port_in_ah_lb(56, 1, 1, 0)
+port_in_ah_lb(56, 1, 1, 1)
+
+port_in_ah(64, 0, 0, 0)
+port_in_ah(64, 1, 0, 0)
+port_in_ah_lb(64, 1, 1, 0)
+port_in_ah_lb(64, 1, 1, 1)
+
+static rte_pipeline_port_in_action_handler
+get_port_in_ah(struct pipeline_passthrough *p)
+{
+	if (p->params.dma_enabled == 0)
+		return NULL;
+
+	if (p->params.dma_hash_enabled) {
+		if (p->params.lb_hash_enabled) {
+			if (rte_is_power_of_2(p->p.n_ports_out))
+				switch (p->params.dma_size) {
+
+				case 8: return port_in_ah_size8_hash1_lb1_pw1;
+				case 16: return port_in_ah_size16_hash1_lb1_pw1;
+				case 24: return port_in_ah_size24_hash1_lb1_pw1;
+				case 32: return port_in_ah_size32_hash1_lb1_pw1;
+				case 40: return port_in_ah_size40_hash1_lb1_pw1;
+				case 48: return port_in_ah_size48_hash1_lb1_pw1;
+				case 56: return port_in_ah_size56_hash1_lb1_pw1;
+				case 64: return port_in_ah_size64_hash1_lb1_pw1;
+				default: return NULL;
+				}
+			else
+				switch (p->params.dma_size) {
+
+				case 8: return port_in_ah_size8_hash1_lb1_pw0;
+				case 16: return port_in_ah_size16_hash1_lb1_pw0;
+				case 24: return port_in_ah_size24_hash1_lb1_pw0;
+				case 32: return port_in_ah_size32_hash1_lb1_pw0;
+				case 40: return port_in_ah_size40_hash1_lb1_pw0;
+				case 48: return port_in_ah_size48_hash1_lb1_pw0;
+				case 56: return port_in_ah_size56_hash1_lb1_pw0;
+				case 64: return port_in_ah_size64_hash1_lb1_pw0;
+				default: return NULL;
+			}
+		} else
+			switch (p->params.dma_size) {
+
+			case 8: return port_in_ah_size8_hash1_lb0_pw0;
+			case 16: return port_in_ah_size16_hash1_lb0_pw0;
+			case 24: return port_in_ah_size24_hash1_lb0_pw0;
+			case 32: return port_in_ah_size32_hash1_lb0_pw0;
+			case 40: return port_in_ah_size40_hash1_lb0_pw0;
+			case 48: return port_in_ah_size48_hash1_lb0_pw0;
+			case 56: return port_in_ah_size56_hash1_lb0_pw0;
+			case 64: return port_in_ah_size64_hash1_lb0_pw0;
+			default: return NULL;
+		}
+	} else
+		switch (p->params.dma_size) {
+
+		case 8: return port_in_ah_size8_hash0_lb0_pw0;
+		case 16: return port_in_ah_size16_hash0_lb0_pw0;
+		case 24: return port_in_ah_size24_hash0_lb0_pw0;
+		case 32: return port_in_ah_size32_hash0_lb0_pw0;
+		case 40: return port_in_ah_size40_hash0_lb0_pw0;
+		case 48: return port_in_ah_size48_hash0_lb0_pw0;
+		case 56: return port_in_ah_size56_hash0_lb0_pw0;
+		case 64: return port_in_ah_size64_hash0_lb0_pw0;
+		default: return NULL;
+		}
+}
+
+int
+pipeline_passthrough_parse_args(struct pipeline_passthrough_params *p,
+	struct pipeline_params *params)
+{
+	uint32_t dma_dst_offset_present = 0;
+	uint32_t dma_src_offset_present = 0;
+	uint32_t dma_src_mask_present = 0;
+	uint32_t dma_size_present = 0;
+	uint32_t dma_hash_offset_present = 0;
+	uint32_t lb_present = 0;
+	uint32_t i;
+	char dma_mask_str[PIPELINE_PASSTHROUGH_DMA_SIZE_MAX * 2];
+
+	/* default values */
+	p->dma_enabled = 0;
+	p->dma_hash_enabled = 0;
+	p->lb_hash_enabled = 0;
+	memset(p->dma_src_mask, 0xFF, sizeof(p->dma_src_mask));
+
+	for (i = 0; i < params->n_args; i++) {
+		char *arg_name = params->args_name[i];
+		char *arg_value = params->args_value[i];
+
+		/* dma_dst_offset */
+		if (strcmp(arg_name, "dma_dst_offset") == 0) {
+			int status;
+
+			PIPELINE_PARSE_ERR_DUPLICATE(
+				dma_dst_offset_present == 0, params->name,
+				arg_name);
+			dma_dst_offset_present = 1;
+
+			status = parser_read_uint32(&p->dma_dst_offset,
+				arg_value);
+			PIPELINE_PARSE_ERR_INV_VAL((status != -EINVAL),
+				params->name, arg_name, arg_value);
+			PIPELINE_PARSE_ERR_OUT_RNG((status != -ERANGE),
+				params->name, arg_name, arg_value);
+
+			p->dma_enabled = 1;
+
+			continue;
+		}
+
+		/* dma_src_offset */
+		if (strcmp(arg_name, "dma_src_offset") == 0) {
+			int status;
+
+			PIPELINE_PARSE_ERR_DUPLICATE(
+				dma_src_offset_present == 0, params->name,
+				arg_name);
+			dma_src_offset_present = 1;
+
+			status = parser_read_uint32(&p->dma_src_offset,
+				arg_value);
+			PIPELINE_PARSE_ERR_INV_VAL((status != -EINVAL),
+				params->name, arg_name, arg_value);
+			PIPELINE_PARSE_ERR_OUT_RNG((status != -ERANGE),
+				params->name, arg_name, arg_value);
+
+			p->dma_enabled = 1;
+
+			continue;
+		}
+
+		/* dma_size */
+		if (strcmp(arg_name, "dma_size") == 0) {
+			int status;
+
+			PIPELINE_PARSE_ERR_DUPLICATE(
+				dma_size_present == 0, params->name,
+				arg_name);
+			dma_size_present = 1;
+
+			status = parser_read_uint32(&p->dma_size,
+				arg_value);
+			PIPELINE_PARSE_ERR_INV_VAL(((status != -EINVAL) &&
+				(p->dma_size != 0) &&
+				((p->dma_size % 8) == 0)),
+				params->name, arg_name, arg_value);
+			PIPELINE_PARSE_ERR_OUT_RNG(((status != -ERANGE) &&
+				(p->dma_size <=
+				PIPELINE_PASSTHROUGH_DMA_SIZE_MAX)),
+				params->name, arg_name, arg_value);
+
+			p->dma_enabled = 1;
+
+			continue;
+		}
+
+		/* dma_src_mask */
+		if (strcmp(arg_name, "dma_src_mask") == 0) {
+			int mask_str_len = strlen(arg_value);
+
+			PIPELINE_PARSE_ERR_DUPLICATE(
+				dma_src_mask_present == 0,
+				params->name, arg_name);
+			dma_src_mask_present = 1;
+
+			PIPELINE_ARG_CHECK((mask_str_len <
+				(PIPELINE_PASSTHROUGH_DMA_SIZE_MAX * 2)),
+				"Parse error in section \"%s\": entry "
+				"\"%s\" too long", params->name,
+				arg_name);
+
+			snprintf(dma_mask_str, mask_str_len + 1,
+				"%s", arg_value);
+
+			p->dma_enabled = 1;
+
+			continue;
+		}
+
+		/* dma_hash_offset */
+		if (strcmp(arg_name, "dma_hash_offset") == 0) {
+			int status;
+
+			PIPELINE_PARSE_ERR_DUPLICATE(
+				dma_hash_offset_present == 0,
+				params->name, arg_name);
+			dma_hash_offset_present = 1;
+
+			status = parser_read_uint32(&p->dma_hash_offset,
+				arg_value);
+			PIPELINE_PARSE_ERR_INV_VAL((status != -EINVAL),
+				params->name, arg_name, arg_value);
+			PIPELINE_PARSE_ERR_OUT_RNG((status != -ERANGE),
+				params->name, arg_name, arg_value);
+
+			p->dma_hash_enabled = 1;
+			p->dma_enabled = 1;
+
+			continue;
+		}
+
+		/* load_balance mode */
+		if (strcmp(arg_name, "lb") == 0) {
+			PIPELINE_PARSE_ERR_DUPLICATE(
+				lb_present == 0,
+				params->name, arg_name);
+			lb_present = 1;
+
+			if ((strcmp(arg_value, "hash") == 0) ||
+				(strcmp(arg_value, "HASH") == 0))
+				p->lb_hash_enabled = 1;
+			else
+				PIPELINE_PARSE_ERR_INV_VAL(0,
+					params->name,
+					arg_name,
+					arg_value);
+
+			continue;
+		}
+
+		/* any other */
+		PIPELINE_PARSE_ERR_INV_ENT(0, params->name, arg_name);
+	}
+
+	/* Check correlations between arguments */
+	PIPELINE_ARG_CHECK((dma_dst_offset_present == p->dma_enabled),
+		"Parse error in section \"%s\": missing entry "
+		"\"dma_dst_offset\"", params->name);
+	PIPELINE_ARG_CHECK((dma_src_offset_present == p->dma_enabled),
+		"Parse error in section \"%s\": missing entry "
+		"\"dma_src_offset\"", params->name);
+	PIPELINE_ARG_CHECK((dma_size_present == p->dma_enabled),
+		"Parse error in section \"%s\": missing entry "
+		"\"dma_size\"", params->name);
+	PIPELINE_ARG_CHECK((dma_hash_offset_present == p->dma_enabled),
+		"Parse error in section \"%s\": missing entry "
+		"\"dma_hash_offset\"", params->name);
+	PIPELINE_ARG_CHECK((p->lb_hash_enabled <= p->dma_hash_enabled),
+		"Parse error in section \"%s\": missing entry "
+		"\"dma_hash_offset\"", params->name);
+
+	if (dma_src_mask_present) {
+		uint32_t dma_size = p->dma_size;
+		int status;
+
+		PIPELINE_ARG_CHECK((strlen(dma_mask_str) ==
+			(dma_size * 2)), "Parse error in section "
+			"\"%s\": dma_src_mask should have exactly %u hex "
+			"digits", params->name, (dma_size * 2));
+
+		status = parse_hex_string(dma_mask_str, p->dma_src_mask,
+			&p->dma_size);
+
+		PIPELINE_PARSE_ERR_INV_VAL(((status == 0) &&
+			(dma_size == p->dma_size)), params->name,
+			"dma_src_mask", dma_mask_str);
+	}
+
+	return 0;
+}
+
+
+static rte_table_hash_op_hash
+get_hash_function(struct pipeline_passthrough *p)
+{
+	switch (p->params.dma_size) {
+
+	case 8: return hash_default_key8;
+	case 16: return hash_default_key16;
+	case 24: return hash_default_key24;
+	case 32: return hash_default_key32;
+	case 40: return hash_default_key40;
+	case 48: return hash_default_key48;
+	case 56: return hash_default_key56;
+	case 64: return hash_default_key64;
+	default: return NULL;
+	}
+}
+
+static void*
+pipeline_passthrough_init(struct pipeline_params *params,
+	__rte_unused void *arg)
+{
+	struct pipeline *p;
+	struct pipeline_passthrough *p_pt;
+	uint32_t size, i;
+
+	/* Check input arguments */
+	if ((params == NULL) ||
+		(params->n_ports_in == 0) ||
+		(params->n_ports_out == 0) ||
+		(params->n_ports_in < params->n_ports_out) ||
+		(params->n_ports_in % params->n_ports_out))
+		return NULL;
+
+	/* Memory allocation */
+	size = RTE_CACHE_LINE_ROUNDUP(sizeof(struct pipeline_passthrough));
+	p = rte_zmalloc(NULL, size, RTE_CACHE_LINE_SIZE);
+	p_pt = (struct pipeline_passthrough *) p;
+	if (p == NULL)
+		return NULL;
+
+	strcpy(p->name, params->name);
+	p->log_level = params->log_level;
+
+	PLOG(p, HIGH, "Pass-through");
+
+	/* Parse arguments */
+	if (pipeline_passthrough_parse_args(&p_pt->params, params))
+		return NULL;
+	p_pt->f_hash = get_hash_function(p_pt);
+
+	/* Pipeline */
+	{
+		struct rte_pipeline_params pipeline_params = {
+			.name = "PASS-THROUGH",
+			.socket_id = params->socket_id,
+			.offset_port_id = 0,
+		};
+
+		p->p = rte_pipeline_create(&pipeline_params);
+		if (p->p == NULL) {
+			rte_free(p);
+			return NULL;
+		}
+	}
+
+	p->n_ports_in = params->n_ports_in;
+	p->n_ports_out = params->n_ports_out;
+	p->n_tables = p->n_ports_in;
+
+	/*Input ports*/
+	for (i = 0; i < p->n_ports_in; i++) {
+		struct rte_pipeline_port_in_params port_params = {
+			.ops = pipeline_port_in_params_get_ops(
+				&params->port_in[i]),
+			.arg_create = pipeline_port_in_params_convert(
+				&params->port_in[i]),
+			.f_action = get_port_in_ah(p_pt),
+			.arg_ah = p_pt,
+			.burst_size = params->port_in[i].burst_size,
+		};
+
+		int status = rte_pipeline_port_in_create(p->p,
+			&port_params,
+			&p->port_in_id[i]);
+
+		if (status) {
+			rte_pipeline_free(p->p);
+			rte_free(p);
+			return NULL;
+		}
+	}
+
+	/* Output ports */
+	for (i = 0; i < p->n_ports_out; i++) {
+		struct rte_pipeline_port_out_params port_params = {
+			.ops = pipeline_port_out_params_get_ops(
+				&params->port_out[i]),
+			.arg_create = pipeline_port_out_params_convert(
+				&params->port_out[i]),
+			.f_action = NULL,
+			.arg_ah = NULL,
+		};
+
+		int status = rte_pipeline_port_out_create(p->p,
+			&port_params,
+			&p->port_out_id[i]);
+
+		if (status) {
+			rte_pipeline_free(p->p);
+			rte_free(p);
+			return NULL;
+		}
+	}
+
+	/* Tables */
+	for (i = 0; i < p->n_ports_in; i++) {
+		struct rte_pipeline_table_params table_params = {
+			.ops = &rte_table_stub_ops,
+			.arg_create = NULL,
+			.f_action_hit = NULL,
+			.f_action_miss = NULL,
+			.arg_ah = NULL,
+			.action_data_size = 0,
+		};
+
+		int status = rte_pipeline_table_create(p->p,
+			&table_params,
+			&p->table_id[i]);
+
+		if (status) {
+			rte_pipeline_free(p->p);
+			rte_free(p);
+			return NULL;
+		}
+	}
+
+	/* Connecting input ports to tables */
+	for (i = 0; i < p->n_ports_in; i++) {
+		int status = rte_pipeline_port_in_connect_to_table(p->p,
+			p->port_in_id[i],
+			p->table_id[i]);
+
+		if (status) {
+			rte_pipeline_free(p->p);
+			rte_free(p);
+			return NULL;
+		}
+	}
+
+	/* Add entries to tables */
+	for (i = 0; i < p->n_ports_in; i++) {
+		struct rte_pipeline_table_entry default_entry = {
+			.action = RTE_PIPELINE_ACTION_PORT,
+			{.port_id = p->port_out_id[
+				i / (p->n_ports_in / p->n_ports_out)]},
+		};
+
+		struct rte_pipeline_table_entry *default_entry_ptr;
+
+		int status = rte_pipeline_table_default_entry_add(p->p,
+			p->table_id[i],
+			&default_entry,
+			&default_entry_ptr);
+
+		if (status) {
+			rte_pipeline_free(p->p);
+			rte_free(p);
+			return NULL;
+		}
+	}
+
+	/* Enable input ports */
+	for (i = 0; i < p->n_ports_in; i++) {
+		int status = rte_pipeline_port_in_enable(p->p,
+			p->port_in_id[i]);
+
+		if (status) {
+			rte_pipeline_free(p->p);
+			rte_free(p);
+			return NULL;
+		}
+	}
+
+	/* Check pipeline consistency */
+	if (rte_pipeline_check(p->p) < 0) {
+		rte_pipeline_free(p->p);
+		rte_free(p);
+		return NULL;
+	}
+
+	/* Message queues */
+	p->n_msgq = params->n_msgq;
+	for (i = 0; i < p->n_msgq; i++)
+		p->msgq_in[i] = params->msgq_in[i];
+	for (i = 0; i < p->n_msgq; i++)
+		p->msgq_out[i] = params->msgq_out[i];
+
+	/* Message handlers */
+	memcpy(p->handlers, handlers, sizeof(p->handlers));
+
+	return p;
+}
+
+static int
+pipeline_passthrough_free(void *pipeline)
+{
+	struct pipeline *p = (struct pipeline *) pipeline;
+
+	/* Check input arguments */
+	if (p == NULL)
+		return -1;
+
+	/* Free resources */
+	rte_pipeline_free(p->p);
+	rte_free(p);
+	return 0;
+}
+
+static int
+pipeline_passthrough_timer(void *pipeline)
+{
+	struct pipeline *p = (struct pipeline *) pipeline;
+
+	pipeline_msg_req_handle(p);
+	rte_pipeline_flush(p->p);
+
+	return 0;
+}
+
+static int
+pipeline_passthrough_track(void *pipeline, uint32_t port_in, uint32_t *port_out)
+{
+	struct pipeline *p = (struct pipeline *) pipeline;
+
+	/* Check input arguments */
+	if ((p == NULL) ||
+		(port_in >= p->n_ports_in) ||
+		(port_out == NULL))
+		return -1;
+
+	*port_out = port_in / p->n_ports_in;
+	return 0;
+}
+
+struct pipeline_be_ops pipeline_passthrough_be_ops = {
+	.f_init = pipeline_passthrough_init,
+	.f_free = pipeline_passthrough_free,
+	.f_run = NULL,
+	.f_timer = pipeline_passthrough_timer,
+	.f_track = pipeline_passthrough_track,
+};