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-rw-r--r--examples/l3fwd/Makefile51
-rw-r--r--examples/l3fwd/l3fwd.h241
-rw-r--r--examples/l3fwd/l3fwd_em.c801
-rw-r--r--examples/l3fwd/l3fwd_em.h138
-rw-r--r--examples/l3fwd/l3fwd_em_hlm_sse.h342
-rw-r--r--examples/l3fwd/l3fwd_em_sse.h112
-rw-r--r--examples/l3fwd/l3fwd_lpm.c356
-rw-r--r--examples/l3fwd/l3fwd_lpm.h151
-rw-r--r--examples/l3fwd/l3fwd_lpm_sse.h213
-rw-r--r--examples/l3fwd/l3fwd_sse.h501
-rw-r--r--examples/l3fwd/main.c1055
11 files changed, 3961 insertions, 0 deletions
diff --git a/examples/l3fwd/Makefile b/examples/l3fwd/Makefile
new file mode 100644
index 00000000..5ce0ce05
--- /dev/null
+++ b/examples/l3fwd/Makefile
@@ -0,0 +1,51 @@
+# 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.
+
+ifeq ($(RTE_SDK),)
+$(error "Please define RTE_SDK environment variable")
+endif
+
+# Default target, can be overriden by command line or environment
+RTE_TARGET ?= x86_64-native-linuxapp-gcc
+
+include $(RTE_SDK)/mk/rte.vars.mk
+
+# binary name
+APP = l3fwd
+
+# all source are stored in SRCS-y
+SRCS-y := main.c l3fwd_lpm.c l3fwd_em.c
+
+CFLAGS += -I$(SRCDIR)
+CFLAGS += -O3 $(USER_FLAGS)
+CFLAGS += $(WERROR_FLAGS)
+
+include $(RTE_SDK)/mk/rte.extapp.mk
diff --git a/examples/l3fwd/l3fwd.h b/examples/l3fwd/l3fwd.h
new file mode 100644
index 00000000..d8798b7d
--- /dev/null
+++ b/examples/l3fwd/l3fwd.h
@@ -0,0 +1,241 @@
+/*-
+ * 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.
+ */
+
+#ifndef __L3_FWD_H__
+#define __L3_FWD_H__
+
+#include <rte_vect.h>
+
+#define DO_RFC_1812_CHECKS
+
+#define RTE_LOGTYPE_L3FWD RTE_LOGTYPE_USER1
+
+#if !defined(NO_HASH_MULTI_LOOKUP) && defined(RTE_MACHINE_CPUFLAG_NEON)
+#define NO_HASH_MULTI_LOOKUP 1
+#endif
+
+#define MAX_PKT_BURST 32
+#define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
+
+#define MAX_RX_QUEUE_PER_LCORE 16
+
+/*
+ * Try to avoid TX buffering if we have at least MAX_TX_BURST packets to send.
+ */
+#define MAX_TX_BURST (MAX_PKT_BURST / 2)
+
+#define NB_SOCKETS 8
+
+/* Configure how many packets ahead to prefetch, when reading packets */
+#define PREFETCH_OFFSET 3
+
+/* Used to mark destination port as 'invalid'. */
+#define BAD_PORT ((uint16_t)-1)
+
+#define FWDSTEP 4
+
+/* replace first 12B of the ethernet header. */
+#define MASK_ETH 0x3f
+
+/* Hash parameters. */
+#ifdef RTE_ARCH_X86_64
+/* default to 4 million hash entries (approx) */
+#define L3FWD_HASH_ENTRIES (1024*1024*4)
+#else
+/* 32-bit has less address-space for hugepage memory, limit to 1M entries */
+#define L3FWD_HASH_ENTRIES (1024*1024*1)
+#endif
+#define HASH_ENTRY_NUMBER_DEFAULT 4
+
+struct mbuf_table {
+ uint16_t len;
+ struct rte_mbuf *m_table[MAX_PKT_BURST];
+};
+
+struct lcore_rx_queue {
+ uint8_t port_id;
+ uint8_t queue_id;
+} __rte_cache_aligned;
+
+struct lcore_conf {
+ uint16_t n_rx_queue;
+ struct lcore_rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
+ uint16_t n_tx_port;
+ uint16_t tx_port_id[RTE_MAX_ETHPORTS];
+ uint16_t tx_queue_id[RTE_MAX_ETHPORTS];
+ struct mbuf_table tx_mbufs[RTE_MAX_ETHPORTS];
+ void *ipv4_lookup_struct;
+ void *ipv6_lookup_struct;
+} __rte_cache_aligned;
+
+extern volatile bool force_quit;
+
+/* ethernet addresses of ports */
+extern uint64_t dest_eth_addr[RTE_MAX_ETHPORTS];
+extern struct ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];
+
+/* mask of enabled ports */
+extern uint32_t enabled_port_mask;
+
+/* Used only in exact match mode. */
+extern int ipv6; /**< ipv6 is false by default. */
+extern uint32_t hash_entry_number;
+
+extern xmm_t val_eth[RTE_MAX_ETHPORTS];
+
+extern struct lcore_conf lcore_conf[RTE_MAX_LCORE];
+
+/* Send burst of packets on an output interface */
+static inline int
+send_burst(struct lcore_conf *qconf, uint16_t n, uint8_t port)
+{
+ struct rte_mbuf **m_table;
+ int ret;
+ uint16_t queueid;
+
+ queueid = qconf->tx_queue_id[port];
+ m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table;
+
+ ret = rte_eth_tx_burst(port, queueid, m_table, n);
+ if (unlikely(ret < n)) {
+ do {
+ rte_pktmbuf_free(m_table[ret]);
+ } while (++ret < n);
+ }
+
+ return 0;
+}
+
+/* Enqueue a single packet, and send burst if queue is filled */
+static inline int
+send_single_packet(struct lcore_conf *qconf,
+ struct rte_mbuf *m, uint8_t port)
+{
+ uint16_t len;
+
+ len = qconf->tx_mbufs[port].len;
+ qconf->tx_mbufs[port].m_table[len] = m;
+ len++;
+
+ /* enough pkts to be sent */
+ if (unlikely(len == MAX_PKT_BURST)) {
+ send_burst(qconf, MAX_PKT_BURST, port);
+ len = 0;
+ }
+
+ qconf->tx_mbufs[port].len = len;
+ return 0;
+}
+
+#ifdef DO_RFC_1812_CHECKS
+static inline int
+is_valid_ipv4_pkt(struct ipv4_hdr *pkt, uint32_t link_len)
+{
+ /* From http://www.rfc-editor.org/rfc/rfc1812.txt section 5.2.2 */
+ /*
+ * 1. The packet length reported by the Link Layer must be large
+ * enough to hold the minimum length legal IP datagram (20 bytes).
+ */
+ if (link_len < sizeof(struct ipv4_hdr))
+ return -1;
+
+ /* 2. The IP checksum must be correct. */
+ /* this is checked in H/W */
+
+ /*
+ * 3. The IP version number must be 4. If the version number is not 4
+ * then the packet may be another version of IP, such as IPng or
+ * ST-II.
+ */
+ if (((pkt->version_ihl) >> 4) != 4)
+ return -3;
+ /*
+ * 4. The IP header length field must be large enough to hold the
+ * minimum length legal IP datagram (20 bytes = 5 words).
+ */
+ if ((pkt->version_ihl & 0xf) < 5)
+ return -4;
+
+ /*
+ * 5. The IP total length field must be large enough to hold the IP
+ * datagram header, whose length is specified in the IP header length
+ * field.
+ */
+ if (rte_cpu_to_be_16(pkt->total_length) < sizeof(struct ipv4_hdr))
+ return -5;
+
+ return 0;
+}
+#endif /* DO_RFC_1812_CHECKS */
+
+/* Function pointers for LPM or EM functionality. */
+void
+setup_lpm(const int socketid);
+
+void
+setup_hash(const int socketid);
+
+int
+em_check_ptype(int portid);
+
+int
+lpm_check_ptype(int portid);
+
+uint16_t
+em_cb_parse_ptype(uint8_t port, uint16_t queue, struct rte_mbuf *pkts[],
+ uint16_t nb_pkts, uint16_t max_pkts, void *user_param);
+
+uint16_t
+lpm_cb_parse_ptype(uint8_t port, uint16_t queue, struct rte_mbuf *pkts[],
+ uint16_t nb_pkts, uint16_t max_pkts, void *user_param);
+
+int
+em_main_loop(__attribute__((unused)) void *dummy);
+
+int
+lpm_main_loop(__attribute__((unused)) void *dummy);
+
+/* Return ipv4/ipv6 fwd lookup struct for LPM or EM. */
+void *
+em_get_ipv4_l3fwd_lookup_struct(const int socketid);
+
+void *
+em_get_ipv6_l3fwd_lookup_struct(const int socketid);
+
+void *
+lpm_get_ipv4_l3fwd_lookup_struct(const int socketid);
+
+void *
+lpm_get_ipv6_l3fwd_lookup_struct(const int socketid);
+
+#endif /* __L3_FWD_H__ */
diff --git a/examples/l3fwd/l3fwd_em.c b/examples/l3fwd/l3fwd_em.c
new file mode 100644
index 00000000..fc59243d
--- /dev/null
+++ b/examples/l3fwd/l3fwd_em.c
@@ -0,0 +1,801 @@
+/*-
+ * 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 <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <sys/types.h>
+#include <string.h>
+#include <sys/queue.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <getopt.h>
+#include <stdbool.h>
+#include <netinet/in.h>
+
+#include <rte_debug.h>
+#include <rte_ether.h>
+#include <rte_ethdev.h>
+#include <rte_ring.h>
+#include <rte_mempool.h>
+#include <rte_cycles.h>
+#include <rte_mbuf.h>
+#include <rte_ip.h>
+#include <rte_tcp.h>
+#include <rte_udp.h>
+#include <rte_hash.h>
+
+#include "l3fwd.h"
+
+#ifdef RTE_MACHINE_CPUFLAG_SSE4_2
+#include <rte_hash_crc.h>
+#define DEFAULT_HASH_FUNC rte_hash_crc
+#else
+#include <rte_jhash.h>
+#define DEFAULT_HASH_FUNC rte_jhash
+#endif /* RTE_MACHINE_CPUFLAG_SSE4_2 */
+
+#define IPV6_ADDR_LEN 16
+
+struct ipv4_5tuple {
+ uint32_t ip_dst;
+ uint32_t ip_src;
+ uint16_t port_dst;
+ uint16_t port_src;
+ uint8_t proto;
+} __attribute__((__packed__));
+
+union ipv4_5tuple_host {
+ struct {
+ uint8_t pad0;
+ uint8_t proto;
+ uint16_t pad1;
+ uint32_t ip_src;
+ uint32_t ip_dst;
+ uint16_t port_src;
+ uint16_t port_dst;
+ };
+ xmm_t xmm;
+};
+
+#define XMM_NUM_IN_IPV6_5TUPLE 3
+
+struct ipv6_5tuple {
+ uint8_t ip_dst[IPV6_ADDR_LEN];
+ uint8_t ip_src[IPV6_ADDR_LEN];
+ uint16_t port_dst;
+ uint16_t port_src;
+ uint8_t proto;
+} __attribute__((__packed__));
+
+union ipv6_5tuple_host {
+ struct {
+ uint16_t pad0;
+ uint8_t proto;
+ uint8_t pad1;
+ uint8_t ip_src[IPV6_ADDR_LEN];
+ uint8_t ip_dst[IPV6_ADDR_LEN];
+ uint16_t port_src;
+ uint16_t port_dst;
+ uint64_t reserve;
+ };
+ xmm_t xmm[XMM_NUM_IN_IPV6_5TUPLE];
+};
+
+
+
+struct ipv4_l3fwd_em_route {
+ struct ipv4_5tuple key;
+ uint8_t if_out;
+};
+
+struct ipv6_l3fwd_em_route {
+ struct ipv6_5tuple key;
+ uint8_t if_out;
+};
+
+static struct ipv4_l3fwd_em_route ipv4_l3fwd_em_route_array[] = {
+ {{IPv4(101, 0, 0, 0), IPv4(100, 10, 0, 1), 101, 11, IPPROTO_TCP}, 0},
+ {{IPv4(201, 0, 0, 0), IPv4(200, 20, 0, 1), 102, 12, IPPROTO_TCP}, 1},
+ {{IPv4(111, 0, 0, 0), IPv4(100, 30, 0, 1), 101, 11, IPPROTO_TCP}, 2},
+ {{IPv4(211, 0, 0, 0), IPv4(200, 40, 0, 1), 102, 12, IPPROTO_TCP}, 3},
+};
+
+static struct ipv6_l3fwd_em_route ipv6_l3fwd_em_route_array[] = {
+ {{
+ {0xfe, 0x80, 0, 0, 0, 0, 0, 0, 0x02, 0x1e, 0x67, 0xff, 0xfe, 0, 0, 0},
+ {0xfe, 0x80, 0, 0, 0, 0, 0, 0, 0x02, 0x1b, 0x21, 0xff, 0xfe, 0x91, 0x38, 0x05},
+ 101, 11, IPPROTO_TCP}, 0},
+
+ {{
+ {0xfe, 0x90, 0, 0, 0, 0, 0, 0, 0x02, 0x1e, 0x67, 0xff, 0xfe, 0, 0, 0},
+ {0xfe, 0x90, 0, 0, 0, 0, 0, 0, 0x02, 0x1b, 0x21, 0xff, 0xfe, 0x91, 0x38, 0x05},
+ 102, 12, IPPROTO_TCP}, 1},
+
+ {{
+ {0xfe, 0xa0, 0, 0, 0, 0, 0, 0, 0x02, 0x1e, 0x67, 0xff, 0xfe, 0, 0, 0},
+ {0xfe, 0xa0, 0, 0, 0, 0, 0, 0, 0x02, 0x1b, 0x21, 0xff, 0xfe, 0x91, 0x38, 0x05},
+ 101, 11, IPPROTO_TCP}, 2},
+
+ {{
+ {0xfe, 0xb0, 0, 0, 0, 0, 0, 0, 0x02, 0x1e, 0x67, 0xff, 0xfe, 0, 0, 0},
+ {0xfe, 0xb0, 0, 0, 0, 0, 0, 0, 0x02, 0x1b, 0x21, 0xff, 0xfe, 0x91, 0x38, 0x05},
+ 102, 12, IPPROTO_TCP}, 3},
+};
+
+struct rte_hash *ipv4_l3fwd_em_lookup_struct[NB_SOCKETS];
+struct rte_hash *ipv6_l3fwd_em_lookup_struct[NB_SOCKETS];
+
+static inline uint32_t
+ipv4_hash_crc(const void *data, __rte_unused uint32_t data_len,
+ uint32_t init_val)
+{
+ const union ipv4_5tuple_host *k;
+ uint32_t t;
+ const uint32_t *p;
+
+ k = data;
+ t = k->proto;
+ p = (const uint32_t *)&k->port_src;
+
+#ifdef RTE_MACHINE_CPUFLAG_SSE4_2
+ init_val = rte_hash_crc_4byte(t, init_val);
+ init_val = rte_hash_crc_4byte(k->ip_src, init_val);
+ init_val = rte_hash_crc_4byte(k->ip_dst, init_val);
+ init_val = rte_hash_crc_4byte(*p, init_val);
+#else /* RTE_MACHINE_CPUFLAG_SSE4_2 */
+ init_val = rte_jhash_1word(t, init_val);
+ init_val = rte_jhash_1word(k->ip_src, init_val);
+ init_val = rte_jhash_1word(k->ip_dst, init_val);
+ init_val = rte_jhash_1word(*p, init_val);
+#endif /* RTE_MACHINE_CPUFLAG_SSE4_2 */
+
+ return init_val;
+}
+
+static inline uint32_t
+ipv6_hash_crc(const void *data, __rte_unused uint32_t data_len,
+ uint32_t init_val)
+{
+ const union ipv6_5tuple_host *k;
+ uint32_t t;
+ const uint32_t *p;
+#ifdef RTE_MACHINE_CPUFLAG_SSE4_2
+ const uint32_t *ip_src0, *ip_src1, *ip_src2, *ip_src3;
+ const uint32_t *ip_dst0, *ip_dst1, *ip_dst2, *ip_dst3;
+#endif /* RTE_MACHINE_CPUFLAG_SSE4_2 */
+
+ k = data;
+ t = k->proto;
+ p = (const uint32_t *)&k->port_src;
+
+#ifdef RTE_MACHINE_CPUFLAG_SSE4_2
+ ip_src0 = (const uint32_t *) k->ip_src;
+ ip_src1 = (const uint32_t *)(k->ip_src+4);
+ ip_src2 = (const uint32_t *)(k->ip_src+8);
+ ip_src3 = (const uint32_t *)(k->ip_src+12);
+ ip_dst0 = (const uint32_t *) k->ip_dst;
+ ip_dst1 = (const uint32_t *)(k->ip_dst+4);
+ ip_dst2 = (const uint32_t *)(k->ip_dst+8);
+ ip_dst3 = (const uint32_t *)(k->ip_dst+12);
+ init_val = rte_hash_crc_4byte(t, init_val);
+ init_val = rte_hash_crc_4byte(*ip_src0, init_val);
+ init_val = rte_hash_crc_4byte(*ip_src1, init_val);
+ init_val = rte_hash_crc_4byte(*ip_src2, init_val);
+ init_val = rte_hash_crc_4byte(*ip_src3, init_val);
+ init_val = rte_hash_crc_4byte(*ip_dst0, init_val);
+ init_val = rte_hash_crc_4byte(*ip_dst1, init_val);
+ init_val = rte_hash_crc_4byte(*ip_dst2, init_val);
+ init_val = rte_hash_crc_4byte(*ip_dst3, init_val);
+ init_val = rte_hash_crc_4byte(*p, init_val);
+#else /* RTE_MACHINE_CPUFLAG_SSE4_2 */
+ init_val = rte_jhash_1word(t, init_val);
+ init_val = rte_jhash(k->ip_src,
+ sizeof(uint8_t) * IPV6_ADDR_LEN, init_val);
+ init_val = rte_jhash(k->ip_dst,
+ sizeof(uint8_t) * IPV6_ADDR_LEN, init_val);
+ init_val = rte_jhash_1word(*p, init_val);
+#endif /* RTE_MACHINE_CPUFLAG_SSE4_2 */
+ return init_val;
+}
+
+#define IPV4_L3FWD_EM_NUM_ROUTES \
+ (sizeof(ipv4_l3fwd_em_route_array) / sizeof(ipv4_l3fwd_em_route_array[0]))
+
+#define IPV6_L3FWD_EM_NUM_ROUTES \
+ (sizeof(ipv6_l3fwd_em_route_array) / sizeof(ipv6_l3fwd_em_route_array[0]))
+
+static uint8_t ipv4_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
+static uint8_t ipv6_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
+
+static rte_xmm_t mask0;
+static rte_xmm_t mask1;
+static rte_xmm_t mask2;
+
+#if defined(__SSE2__)
+static inline xmm_t
+em_mask_key(void *key, xmm_t mask)
+{
+ __m128i data = _mm_loadu_si128((__m128i *)(key));
+
+ return _mm_and_si128(data, mask);
+}
+#elif defined(RTE_MACHINE_CPUFLAG_NEON)
+static inline xmm_t
+em_mask_key(void *key, xmm_t mask)
+{
+ int32x4_t data = vld1q_s32((int32_t *)key);
+
+ return vandq_s32(data, mask);
+}
+#endif
+
+static inline uint8_t
+em_get_ipv4_dst_port(void *ipv4_hdr, uint8_t portid, void *lookup_struct)
+{
+ int ret = 0;
+ union ipv4_5tuple_host key;
+ struct rte_hash *ipv4_l3fwd_lookup_struct =
+ (struct rte_hash *)lookup_struct;
+
+ ipv4_hdr = (uint8_t *)ipv4_hdr + offsetof(struct ipv4_hdr, time_to_live);
+
+ /*
+ * Get 5 tuple: dst port, src port, dst IP address,
+ * src IP address and protocol.
+ */
+ key.xmm = em_mask_key(ipv4_hdr, mask0.x);
+
+ /* Find destination port */
+ ret = rte_hash_lookup(ipv4_l3fwd_lookup_struct, (const void *)&key);
+ return (uint8_t)((ret < 0) ? portid : ipv4_l3fwd_out_if[ret]);
+}
+
+static inline uint8_t
+em_get_ipv6_dst_port(void *ipv6_hdr, uint8_t portid, void *lookup_struct)
+{
+ int ret = 0;
+ union ipv6_5tuple_host key;
+ struct rte_hash *ipv6_l3fwd_lookup_struct =
+ (struct rte_hash *)lookup_struct;
+
+ ipv6_hdr = (uint8_t *)ipv6_hdr + offsetof(struct ipv6_hdr, payload_len);
+ void *data0 = ipv6_hdr;
+ void *data1 = ((uint8_t *)ipv6_hdr) + sizeof(xmm_t);
+ void *data2 = ((uint8_t *)ipv6_hdr) + sizeof(xmm_t) + sizeof(xmm_t);
+
+ /* Get part of 5 tuple: src IP address lower 96 bits and protocol */
+ key.xmm[0] = em_mask_key(data0, mask1.x);
+
+ /*
+ * Get part of 5 tuple: dst IP address lower 96 bits
+ * and src IP address higher 32 bits.
+ */
+ key.xmm[1] = *(xmm_t *)data1;
+
+ /*
+ * Get part of 5 tuple: dst port and src port
+ * and dst IP address higher 32 bits.
+ */
+ key.xmm[2] = em_mask_key(data2, mask2.x);
+
+ /* Find destination port */
+ ret = rte_hash_lookup(ipv6_l3fwd_lookup_struct, (const void *)&key);
+ return (uint8_t)((ret < 0) ? portid : ipv6_l3fwd_out_if[ret]);
+}
+
+#if defined(__SSE4_1__)
+#if defined(NO_HASH_MULTI_LOOKUP)
+#include "l3fwd_em_sse.h"
+#else
+#include "l3fwd_em_hlm_sse.h"
+#endif
+#else
+#include "l3fwd_em.h"
+#endif
+
+static void
+convert_ipv4_5tuple(struct ipv4_5tuple *key1,
+ union ipv4_5tuple_host *key2)
+{
+ key2->ip_dst = rte_cpu_to_be_32(key1->ip_dst);
+ key2->ip_src = rte_cpu_to_be_32(key1->ip_src);
+ key2->port_dst = rte_cpu_to_be_16(key1->port_dst);
+ key2->port_src = rte_cpu_to_be_16(key1->port_src);
+ key2->proto = key1->proto;
+ key2->pad0 = 0;
+ key2->pad1 = 0;
+}
+
+static void
+convert_ipv6_5tuple(struct ipv6_5tuple *key1,
+ union ipv6_5tuple_host *key2)
+{
+ uint32_t i;
+
+ for (i = 0; i < 16; i++) {
+ key2->ip_dst[i] = key1->ip_dst[i];
+ key2->ip_src[i] = key1->ip_src[i];
+ }
+ key2->port_dst = rte_cpu_to_be_16(key1->port_dst);
+ key2->port_src = rte_cpu_to_be_16(key1->port_src);
+ key2->proto = key1->proto;
+ key2->pad0 = 0;
+ key2->pad1 = 0;
+ key2->reserve = 0;
+}
+
+#define BYTE_VALUE_MAX 256
+#define ALL_32_BITS 0xffffffff
+#define BIT_8_TO_15 0x0000ff00
+
+static inline void
+populate_ipv4_few_flow_into_table(const struct rte_hash *h)
+{
+ uint32_t i;
+ int32_t ret;
+
+ mask0 = (rte_xmm_t){.u32 = {BIT_8_TO_15, ALL_32_BITS,
+ ALL_32_BITS, ALL_32_BITS} };
+
+ for (i = 0; i < IPV4_L3FWD_EM_NUM_ROUTES; i++) {
+ struct ipv4_l3fwd_em_route entry;
+ union ipv4_5tuple_host newkey;
+
+ entry = ipv4_l3fwd_em_route_array[i];
+ convert_ipv4_5tuple(&entry.key, &newkey);
+ ret = rte_hash_add_key(h, (void *) &newkey);
+ if (ret < 0) {
+ rte_exit(EXIT_FAILURE, "Unable to add entry %" PRIu32
+ " to the l3fwd hash.\n", i);
+ }
+ ipv4_l3fwd_out_if[ret] = entry.if_out;
+ }
+ printf("Hash: Adding 0x%" PRIx64 " keys\n",
+ (uint64_t)IPV4_L3FWD_EM_NUM_ROUTES);
+}
+
+#define BIT_16_TO_23 0x00ff0000
+static inline void
+populate_ipv6_few_flow_into_table(const struct rte_hash *h)
+{
+ uint32_t i;
+ int32_t ret;
+
+ mask1 = (rte_xmm_t){.u32 = {BIT_16_TO_23, ALL_32_BITS,
+ ALL_32_BITS, ALL_32_BITS} };
+
+ mask2 = (rte_xmm_t){.u32 = {ALL_32_BITS, ALL_32_BITS, 0, 0} };
+
+ for (i = 0; i < IPV6_L3FWD_EM_NUM_ROUTES; i++) {
+ struct ipv6_l3fwd_em_route entry;
+ union ipv6_5tuple_host newkey;
+
+ entry = ipv6_l3fwd_em_route_array[i];
+ convert_ipv6_5tuple(&entry.key, &newkey);
+ ret = rte_hash_add_key(h, (void *) &newkey);
+ if (ret < 0) {
+ rte_exit(EXIT_FAILURE, "Unable to add entry %" PRIu32
+ " to the l3fwd hash.\n", i);
+ }
+ ipv6_l3fwd_out_if[ret] = entry.if_out;
+ }
+ printf("Hash: Adding 0x%" PRIx64 "keys\n",
+ (uint64_t)IPV6_L3FWD_EM_NUM_ROUTES);
+}
+
+#define NUMBER_PORT_USED 4
+static inline void
+populate_ipv4_many_flow_into_table(const struct rte_hash *h,
+ unsigned int nr_flow)
+{
+ unsigned i;
+
+ mask0 = (rte_xmm_t){.u32 = {BIT_8_TO_15, ALL_32_BITS,
+ ALL_32_BITS, ALL_32_BITS} };
+
+ for (i = 0; i < nr_flow; i++) {
+ struct ipv4_l3fwd_em_route entry;
+ union ipv4_5tuple_host newkey;
+
+ uint8_t a = (uint8_t)
+ ((i/NUMBER_PORT_USED)%BYTE_VALUE_MAX);
+ uint8_t b = (uint8_t)
+ (((i/NUMBER_PORT_USED)/BYTE_VALUE_MAX)%BYTE_VALUE_MAX);
+ uint8_t c = (uint8_t)
+ ((i/NUMBER_PORT_USED)/(BYTE_VALUE_MAX*BYTE_VALUE_MAX));
+
+ /* Create the ipv4 exact match flow */
+ memset(&entry, 0, sizeof(entry));
+ switch (i & (NUMBER_PORT_USED - 1)) {
+ case 0:
+ entry = ipv4_l3fwd_em_route_array[0];
+ entry.key.ip_dst = IPv4(101, c, b, a);
+ break;
+ case 1:
+ entry = ipv4_l3fwd_em_route_array[1];
+ entry.key.ip_dst = IPv4(201, c, b, a);
+ break;
+ case 2:
+ entry = ipv4_l3fwd_em_route_array[2];
+ entry.key.ip_dst = IPv4(111, c, b, a);
+ break;
+ case 3:
+ entry = ipv4_l3fwd_em_route_array[3];
+ entry.key.ip_dst = IPv4(211, c, b, a);
+ break;
+ };
+ convert_ipv4_5tuple(&entry.key, &newkey);
+ int32_t ret = rte_hash_add_key(h, (void *) &newkey);
+
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE, "Unable to add entry %u\n", i);
+
+ ipv4_l3fwd_out_if[ret] = (uint8_t) entry.if_out;
+
+ }
+ printf("Hash: Adding 0x%x keys\n", nr_flow);
+}
+
+static inline void
+populate_ipv6_many_flow_into_table(const struct rte_hash *h,
+ unsigned int nr_flow)
+{
+ unsigned i;
+
+ mask1 = (rte_xmm_t){.u32 = {BIT_16_TO_23, ALL_32_BITS,
+ ALL_32_BITS, ALL_32_BITS} };
+ mask2 = (rte_xmm_t){.u32 = {ALL_32_BITS, ALL_32_BITS, 0, 0} };
+
+ for (i = 0; i < nr_flow; i++) {
+ struct ipv6_l3fwd_em_route entry;
+ union ipv6_5tuple_host newkey;
+
+ uint8_t a = (uint8_t)
+ ((i/NUMBER_PORT_USED)%BYTE_VALUE_MAX);
+ uint8_t b = (uint8_t)
+ (((i/NUMBER_PORT_USED)/BYTE_VALUE_MAX)%BYTE_VALUE_MAX);
+ uint8_t c = (uint8_t)
+ ((i/NUMBER_PORT_USED)/(BYTE_VALUE_MAX*BYTE_VALUE_MAX));
+
+ /* Create the ipv6 exact match flow */
+ memset(&entry, 0, sizeof(entry));
+ switch (i & (NUMBER_PORT_USED - 1)) {
+ case 0:
+ entry = ipv6_l3fwd_em_route_array[0];
+ break;
+ case 1:
+ entry = ipv6_l3fwd_em_route_array[1];
+ break;
+ case 2:
+ entry = ipv6_l3fwd_em_route_array[2];
+ break;
+ case 3:
+ entry = ipv6_l3fwd_em_route_array[3];
+ break;
+ };
+ entry.key.ip_dst[13] = c;
+ entry.key.ip_dst[14] = b;
+ entry.key.ip_dst[15] = a;
+ convert_ipv6_5tuple(&entry.key, &newkey);
+ int32_t ret = rte_hash_add_key(h, (void *) &newkey);
+
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE, "Unable to add entry %u\n", i);
+
+ ipv6_l3fwd_out_if[ret] = (uint8_t) entry.if_out;
+
+ }
+ printf("Hash: Adding 0x%x keys\n", nr_flow);
+}
+
+/* Requirements:
+ * 1. IP packets without extension;
+ * 2. L4 payload should be either TCP or UDP.
+ */
+int
+em_check_ptype(int portid)
+{
+ int i, ret;
+ int ptype_l3_ipv4_ext = 0;
+ int ptype_l3_ipv6_ext = 0;
+ int ptype_l4_tcp = 0;
+ int ptype_l4_udp = 0;
+ uint32_t ptype_mask = RTE_PTYPE_L3_MASK | RTE_PTYPE_L4_MASK;
+
+ ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, NULL, 0);
+ if (ret <= 0)
+ return 0;
+
+ uint32_t ptypes[ret];
+
+ ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, ptypes, ret);
+ for (i = 0; i < ret; ++i) {
+ switch (ptypes[i]) {
+ case RTE_PTYPE_L3_IPV4_EXT:
+ ptype_l3_ipv4_ext = 1;
+ break;
+ case RTE_PTYPE_L3_IPV6_EXT:
+ ptype_l3_ipv6_ext = 1;
+ break;
+ case RTE_PTYPE_L4_TCP:
+ ptype_l4_tcp = 1;
+ break;
+ case RTE_PTYPE_L4_UDP:
+ ptype_l4_udp = 1;
+ break;
+ }
+ }
+
+ if (ptype_l3_ipv4_ext == 0)
+ printf("port %d cannot parse RTE_PTYPE_L3_IPV4_EXT\n", portid);
+ if (ptype_l3_ipv6_ext == 0)
+ printf("port %d cannot parse RTE_PTYPE_L3_IPV6_EXT\n", portid);
+ if (!ptype_l3_ipv4_ext || !ptype_l3_ipv6_ext)
+ return 0;
+
+ if (ptype_l4_tcp == 0)
+ printf("port %d cannot parse RTE_PTYPE_L4_TCP\n", portid);
+ if (ptype_l4_udp == 0)
+ printf("port %d cannot parse RTE_PTYPE_L4_UDP\n", portid);
+ if (ptype_l4_tcp && ptype_l4_udp)
+ return 1;
+
+ return 0;
+}
+
+static inline void
+em_parse_ptype(struct rte_mbuf *m)
+{
+ struct ether_hdr *eth_hdr;
+ uint32_t packet_type = RTE_PTYPE_UNKNOWN;
+ uint16_t ether_type;
+ void *l3;
+ int hdr_len;
+ struct ipv4_hdr *ipv4_hdr;
+ struct ipv6_hdr *ipv6_hdr;
+
+ eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);
+ ether_type = eth_hdr->ether_type;
+ l3 = (uint8_t *)eth_hdr + sizeof(struct ether_hdr);
+ if (ether_type == rte_cpu_to_be_16(ETHER_TYPE_IPv4)) {
+ ipv4_hdr = (struct ipv4_hdr *)l3;
+ hdr_len = (ipv4_hdr->version_ihl & IPV4_HDR_IHL_MASK) *
+ IPV4_IHL_MULTIPLIER;
+ if (hdr_len == sizeof(struct ipv4_hdr)) {
+ packet_type |= RTE_PTYPE_L3_IPV4;
+ if (ipv4_hdr->next_proto_id == IPPROTO_TCP)
+ packet_type |= RTE_PTYPE_L4_TCP;
+ else if (ipv4_hdr->next_proto_id == IPPROTO_UDP)
+ packet_type |= RTE_PTYPE_L4_UDP;
+ } else
+ packet_type |= RTE_PTYPE_L3_IPV4_EXT;
+ } else if (ether_type == rte_cpu_to_be_16(ETHER_TYPE_IPv4)) {
+ ipv6_hdr = (struct ipv6_hdr *)l3;
+ if (ipv6_hdr->proto == IPPROTO_TCP)
+ packet_type |= RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_TCP;
+ else if (ipv6_hdr->proto == IPPROTO_UDP)
+ packet_type |= RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_UDP;
+ else
+ packet_type |= RTE_PTYPE_L3_IPV6_EXT_UNKNOWN;
+ }
+
+ m->packet_type = packet_type;
+}
+
+uint16_t
+em_cb_parse_ptype(uint8_t port __rte_unused, uint16_t queue __rte_unused,
+ struct rte_mbuf *pkts[], uint16_t nb_pkts,
+ uint16_t max_pkts __rte_unused,
+ void *user_param __rte_unused)
+{
+ unsigned i;
+
+ for (i = 0; i < nb_pkts; ++i)
+ em_parse_ptype(pkts[i]);
+
+ return nb_pkts;
+}
+
+/* main processing loop */
+int
+em_main_loop(__attribute__((unused)) void *dummy)
+{
+ struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
+ unsigned lcore_id;
+ uint64_t prev_tsc, diff_tsc, cur_tsc;
+ int i, nb_rx;
+ uint8_t portid, queueid;
+ struct lcore_conf *qconf;
+ const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) /
+ US_PER_S * BURST_TX_DRAIN_US;
+
+ prev_tsc = 0;
+
+ lcore_id = rte_lcore_id();
+ qconf = &lcore_conf[lcore_id];
+
+ if (qconf->n_rx_queue == 0) {
+ RTE_LOG(INFO, L3FWD, "lcore %u has nothing to do\n", lcore_id);
+ return 0;
+ }
+
+ RTE_LOG(INFO, L3FWD, "entering main loop on lcore %u\n", lcore_id);
+
+ for (i = 0; i < qconf->n_rx_queue; i++) {
+
+ portid = qconf->rx_queue_list[i].port_id;
+ queueid = qconf->rx_queue_list[i].queue_id;
+ RTE_LOG(INFO, L3FWD,
+ " -- lcoreid=%u portid=%hhu rxqueueid=%hhu\n",
+ lcore_id, portid, queueid);
+ }
+
+ while (!force_quit) {
+
+ cur_tsc = rte_rdtsc();
+
+ /*
+ * TX burst queue drain
+ */
+ diff_tsc = cur_tsc - prev_tsc;
+ if (unlikely(diff_tsc > drain_tsc)) {
+
+ for (i = 0; i < qconf->n_tx_port; ++i) {
+ portid = qconf->tx_port_id[i];
+ if (qconf->tx_mbufs[portid].len == 0)
+ continue;
+ send_burst(qconf,
+ qconf->tx_mbufs[portid].len,
+ portid);
+ qconf->tx_mbufs[portid].len = 0;
+ }
+
+ prev_tsc = cur_tsc;
+ }
+
+ /*
+ * Read packet from RX queues
+ */
+ for (i = 0; i < qconf->n_rx_queue; ++i) {
+ portid = qconf->rx_queue_list[i].port_id;
+ queueid = qconf->rx_queue_list[i].queue_id;
+ nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
+ MAX_PKT_BURST);
+ if (nb_rx == 0)
+ continue;
+
+#if defined(__SSE4_1__)
+ l3fwd_em_send_packets(nb_rx, pkts_burst,
+ portid, qconf);
+#else
+ l3fwd_em_no_opt_send_packets(nb_rx, pkts_burst,
+ portid, qconf);
+#endif /* __SSE_4_1__ */
+ }
+ }
+
+ return 0;
+}
+
+/*
+ * Initialize exact match (hash) parameters.
+ */
+void
+setup_hash(const int socketid)
+{
+ struct rte_hash_parameters ipv4_l3fwd_hash_params = {
+ .name = NULL,
+ .entries = L3FWD_HASH_ENTRIES,
+ .key_len = sizeof(union ipv4_5tuple_host),
+ .hash_func = ipv4_hash_crc,
+ .hash_func_init_val = 0,
+ };
+
+ struct rte_hash_parameters ipv6_l3fwd_hash_params = {
+ .name = NULL,
+ .entries = L3FWD_HASH_ENTRIES,
+ .key_len = sizeof(union ipv6_5tuple_host),
+ .hash_func = ipv6_hash_crc,
+ .hash_func_init_val = 0,
+ };
+
+ char s[64];
+
+ /* create ipv4 hash */
+ snprintf(s, sizeof(s), "ipv4_l3fwd_hash_%d", socketid);
+ ipv4_l3fwd_hash_params.name = s;
+ ipv4_l3fwd_hash_params.socket_id = socketid;
+ ipv4_l3fwd_em_lookup_struct[socketid] =
+ rte_hash_create(&ipv4_l3fwd_hash_params);
+ if (ipv4_l3fwd_em_lookup_struct[socketid] == NULL)
+ rte_exit(EXIT_FAILURE,
+ "Unable to create the l3fwd hash on socket %d\n",
+ socketid);
+
+ /* create ipv6 hash */
+ snprintf(s, sizeof(s), "ipv6_l3fwd_hash_%d", socketid);
+ ipv6_l3fwd_hash_params.name = s;
+ ipv6_l3fwd_hash_params.socket_id = socketid;
+ ipv6_l3fwd_em_lookup_struct[socketid] =
+ rte_hash_create(&ipv6_l3fwd_hash_params);
+ if (ipv6_l3fwd_em_lookup_struct[socketid] == NULL)
+ rte_exit(EXIT_FAILURE,
+ "Unable to create the l3fwd hash on socket %d\n",
+ socketid);
+
+ if (hash_entry_number != HASH_ENTRY_NUMBER_DEFAULT) {
+ /* For testing hash matching with a large number of flows we
+ * generate millions of IP 5-tuples with an incremented dst
+ * address to initialize the hash table. */
+ if (ipv6 == 0) {
+ /* populate the ipv4 hash */
+ populate_ipv4_many_flow_into_table(
+ ipv4_l3fwd_em_lookup_struct[socketid],
+ hash_entry_number);
+ } else {
+ /* populate the ipv6 hash */
+ populate_ipv6_many_flow_into_table(
+ ipv6_l3fwd_em_lookup_struct[socketid],
+ hash_entry_number);
+ }
+ } else {
+ /*
+ * Use data in ipv4/ipv6 l3fwd lookup table
+ * directly to initialize the hash table.
+ */
+ if (ipv6 == 0) {
+ /* populate the ipv4 hash */
+ populate_ipv4_few_flow_into_table(
+ ipv4_l3fwd_em_lookup_struct[socketid]);
+ } else {
+ /* populate the ipv6 hash */
+ populate_ipv6_few_flow_into_table(
+ ipv6_l3fwd_em_lookup_struct[socketid]);
+ }
+ }
+}
+
+/* Return ipv4/ipv6 em fwd lookup struct. */
+void *
+em_get_ipv4_l3fwd_lookup_struct(const int socketid)
+{
+ return ipv4_l3fwd_em_lookup_struct[socketid];
+}
+
+void *
+em_get_ipv6_l3fwd_lookup_struct(const int socketid)
+{
+ return ipv6_l3fwd_em_lookup_struct[socketid];
+}
diff --git a/examples/l3fwd/l3fwd_em.h b/examples/l3fwd/l3fwd_em.h
new file mode 100644
index 00000000..2284bbd5
--- /dev/null
+++ b/examples/l3fwd/l3fwd_em.h
@@ -0,0 +1,138 @@
+/*-
+ * 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.
+ */
+
+#ifndef __L3FWD_EM_H__
+#define __L3FWD_EM_H__
+
+static inline __attribute__((always_inline)) void
+l3fwd_em_simple_forward(struct rte_mbuf *m, uint8_t portid,
+ struct lcore_conf *qconf)
+{
+ struct ether_hdr *eth_hdr;
+ struct ipv4_hdr *ipv4_hdr;
+ uint8_t dst_port;
+ uint32_t tcp_or_udp;
+ uint32_t l3_ptypes;
+
+ eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);
+ tcp_or_udp = m->packet_type & (RTE_PTYPE_L4_TCP | RTE_PTYPE_L4_UDP);
+ l3_ptypes = m->packet_type & RTE_PTYPE_L3_MASK;
+
+ if (tcp_or_udp && (l3_ptypes == RTE_PTYPE_L3_IPV4)) {
+ /* Handle IPv4 headers.*/
+ ipv4_hdr = rte_pktmbuf_mtod_offset(m, struct ipv4_hdr *,
+ sizeof(struct ether_hdr));
+
+#ifdef DO_RFC_1812_CHECKS
+ /* Check to make sure the packet is valid (RFC1812) */
+ if (is_valid_ipv4_pkt(ipv4_hdr, m->pkt_len) < 0) {
+ rte_pktmbuf_free(m);
+ return;
+ }
+#endif
+ dst_port = em_get_ipv4_dst_port(ipv4_hdr, portid,
+ qconf->ipv4_lookup_struct);
+
+ if (dst_port >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port) == 0)
+ dst_port = portid;
+
+#ifdef DO_RFC_1812_CHECKS
+ /* Update time to live and header checksum */
+ --(ipv4_hdr->time_to_live);
+ ++(ipv4_hdr->hdr_checksum);
+#endif
+ /* dst addr */
+ *(uint64_t *)&eth_hdr->d_addr = dest_eth_addr[dst_port];
+
+ /* src addr */
+ ether_addr_copy(&ports_eth_addr[dst_port], &eth_hdr->s_addr);
+
+ send_single_packet(qconf, m, dst_port);
+ } else if (tcp_or_udp && (l3_ptypes == RTE_PTYPE_L3_IPV6)) {
+ /* Handle IPv6 headers.*/
+ struct ipv6_hdr *ipv6_hdr;
+
+ ipv6_hdr = rte_pktmbuf_mtod_offset(m, struct ipv6_hdr *,
+ sizeof(struct ether_hdr));
+
+ dst_port = em_get_ipv6_dst_port(ipv6_hdr, portid,
+ qconf->ipv6_lookup_struct);
+
+ if (dst_port >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port) == 0)
+ dst_port = portid;
+
+ /* dst addr */
+ *(uint64_t *)&eth_hdr->d_addr = dest_eth_addr[dst_port];
+
+ /* src addr */
+ ether_addr_copy(&ports_eth_addr[dst_port], &eth_hdr->s_addr);
+
+ send_single_packet(qconf, m, dst_port);
+ } else {
+ /* Free the mbuf that contains non-IPV4/IPV6 packet */
+ rte_pktmbuf_free(m);
+ }
+}
+
+/*
+ * Buffer non-optimized handling of packets, invoked
+ * from main_loop.
+ */
+static inline void
+l3fwd_em_no_opt_send_packets(int nb_rx, struct rte_mbuf **pkts_burst,
+ uint8_t portid, struct lcore_conf *qconf)
+{
+ int32_t j;
+
+ /* Prefetch first packets */
+ for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++)
+ rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[j], void *));
+
+ /*
+ * Prefetch and forward already prefetched
+ * packets.
+ */
+ for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
+ rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
+ j + PREFETCH_OFFSET], void *));
+ l3fwd_em_simple_forward(pkts_burst[j], portid, qconf);
+ }
+
+ /* Forward remaining prefetched packets */
+ for (; j < nb_rx; j++)
+ l3fwd_em_simple_forward(pkts_burst[j], portid, qconf);
+}
+
+#endif /* __L3FWD_EM_H__ */
diff --git a/examples/l3fwd/l3fwd_em_hlm_sse.h b/examples/l3fwd/l3fwd_em_hlm_sse.h
new file mode 100644
index 00000000..5001c724
--- /dev/null
+++ b/examples/l3fwd/l3fwd_em_hlm_sse.h
@@ -0,0 +1,342 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 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.
+ */
+
+#ifndef __L3FWD_EM_HLM_SSE_H__
+#define __L3FWD_EM_HLM_SSE_H__
+
+#include "l3fwd_sse.h"
+
+static inline __attribute__((always_inline)) void
+em_get_dst_port_ipv4x8(struct lcore_conf *qconf, struct rte_mbuf *m[8],
+ uint8_t portid, uint16_t dst_port[8])
+{
+ int32_t ret[8];
+ union ipv4_5tuple_host key[8];
+ __m128i data[8];
+
+ data[0] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[0], __m128i *,
+ sizeof(struct ether_hdr) +
+ offsetof(struct ipv4_hdr, time_to_live)));
+ data[1] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[1], __m128i *,
+ sizeof(struct ether_hdr) +
+ offsetof(struct ipv4_hdr, time_to_live)));
+ data[2] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[2], __m128i *,
+ sizeof(struct ether_hdr) +
+ offsetof(struct ipv4_hdr, time_to_live)));
+ data[3] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[3], __m128i *,
+ sizeof(struct ether_hdr) +
+ offsetof(struct ipv4_hdr, time_to_live)));
+ data[4] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[4], __m128i *,
+ sizeof(struct ether_hdr) +
+ offsetof(struct ipv4_hdr, time_to_live)));
+ data[5] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[5], __m128i *,
+ sizeof(struct ether_hdr) +
+ offsetof(struct ipv4_hdr, time_to_live)));
+ data[6] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[6], __m128i *,
+ sizeof(struct ether_hdr) +
+ offsetof(struct ipv4_hdr, time_to_live)));
+ data[7] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[7], __m128i *,
+ sizeof(struct ether_hdr) +
+ offsetof(struct ipv4_hdr, time_to_live)));
+
+ key[0].xmm = _mm_and_si128(data[0], mask0.x);
+ key[1].xmm = _mm_and_si128(data[1], mask0.x);
+ key[2].xmm = _mm_and_si128(data[2], mask0.x);
+ key[3].xmm = _mm_and_si128(data[3], mask0.x);
+ key[4].xmm = _mm_and_si128(data[4], mask0.x);
+ key[5].xmm = _mm_and_si128(data[5], mask0.x);
+ key[6].xmm = _mm_and_si128(data[6], mask0.x);
+ key[7].xmm = _mm_and_si128(data[7], mask0.x);
+
+ const void *key_array[8] = {&key[0], &key[1], &key[2], &key[3],
+ &key[4], &key[5], &key[6], &key[7]};
+
+ rte_hash_lookup_multi(qconf->ipv4_lookup_struct, &key_array[0], 8, ret);
+
+ dst_port[0] = (uint8_t) ((ret[0] < 0) ?
+ portid : ipv4_l3fwd_out_if[ret[0]]);
+ dst_port[1] = (uint8_t) ((ret[1] < 0) ?
+ portid : ipv4_l3fwd_out_if[ret[1]]);
+ dst_port[2] = (uint8_t) ((ret[2] < 0) ?
+ portid : ipv4_l3fwd_out_if[ret[2]]);
+ dst_port[3] = (uint8_t) ((ret[3] < 0) ?
+ portid : ipv4_l3fwd_out_if[ret[3]]);
+ dst_port[4] = (uint8_t) ((ret[4] < 0) ?
+ portid : ipv4_l3fwd_out_if[ret[4]]);
+ dst_port[5] = (uint8_t) ((ret[5] < 0) ?
+ portid : ipv4_l3fwd_out_if[ret[5]]);
+ dst_port[6] = (uint8_t) ((ret[6] < 0) ?
+ portid : ipv4_l3fwd_out_if[ret[6]]);
+ dst_port[7] = (uint8_t) ((ret[7] < 0) ?
+ portid : ipv4_l3fwd_out_if[ret[7]]);
+
+ if (dst_port[0] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[0]) == 0)
+ dst_port[0] = portid;
+
+ if (dst_port[1] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[1]) == 0)
+ dst_port[1] = portid;
+
+ if (dst_port[2] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[2]) == 0)
+ dst_port[2] = portid;
+
+ if (dst_port[3] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[3]) == 0)
+ dst_port[3] = portid;
+
+ if (dst_port[4] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[4]) == 0)
+ dst_port[4] = portid;
+
+ if (dst_port[5] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[5]) == 0)
+ dst_port[5] = portid;
+
+ if (dst_port[6] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[6]) == 0)
+ dst_port[6] = portid;
+
+ if (dst_port[7] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[7]) == 0)
+ dst_port[7] = portid;
+
+}
+
+static inline void
+get_ipv6_5tuple(struct rte_mbuf *m0, __m128i mask0,
+ __m128i mask1, union ipv6_5tuple_host *key)
+{
+ __m128i tmpdata0 = _mm_loadu_si128(
+ rte_pktmbuf_mtod_offset(m0, __m128i *,
+ sizeof(struct ether_hdr) +
+ offsetof(struct ipv6_hdr, payload_len)));
+
+ __m128i tmpdata1 = _mm_loadu_si128(
+ rte_pktmbuf_mtod_offset(m0, __m128i *,
+ sizeof(struct ether_hdr) +
+ offsetof(struct ipv6_hdr, payload_len) +
+ sizeof(__m128i)));
+
+ __m128i tmpdata2 = _mm_loadu_si128(
+ rte_pktmbuf_mtod_offset(m0, __m128i *,
+ sizeof(struct ether_hdr) +
+ offsetof(struct ipv6_hdr, payload_len) +
+ sizeof(__m128i) + sizeof(__m128i)));
+
+ key->xmm[0] = _mm_and_si128(tmpdata0, mask0);
+ key->xmm[1] = tmpdata1;
+ key->xmm[2] = _mm_and_si128(tmpdata2, mask1);
+}
+
+static inline __attribute__((always_inline)) void
+em_get_dst_port_ipv6x8(struct lcore_conf *qconf, struct rte_mbuf *m[8],
+ uint8_t portid, uint16_t dst_port[8])
+{
+ int32_t ret[8];
+ union ipv6_5tuple_host key[8];
+
+ get_ipv6_5tuple(m[0], mask1.x, mask2.x, &key[0]);
+ get_ipv6_5tuple(m[1], mask1.x, mask2.x, &key[1]);
+ get_ipv6_5tuple(m[2], mask1.x, mask2.x, &key[2]);
+ get_ipv6_5tuple(m[3], mask1.x, mask2.x, &key[3]);
+ get_ipv6_5tuple(m[4], mask1.x, mask2.x, &key[4]);
+ get_ipv6_5tuple(m[5], mask1.x, mask2.x, &key[5]);
+ get_ipv6_5tuple(m[6], mask1.x, mask2.x, &key[6]);
+ get_ipv6_5tuple(m[7], mask1.x, mask2.x, &key[7]);
+
+ const void *key_array[8] = {&key[0], &key[1], &key[2], &key[3],
+ &key[4], &key[5], &key[6], &key[7]};
+
+ rte_hash_lookup_multi(qconf->ipv6_lookup_struct, &key_array[0], 8, ret);
+
+ dst_port[0] = (uint8_t) ((ret[0] < 0) ?
+ portid : ipv6_l3fwd_out_if[ret[0]]);
+ dst_port[1] = (uint8_t) ((ret[1] < 0) ?
+ portid : ipv6_l3fwd_out_if[ret[1]]);
+ dst_port[2] = (uint8_t) ((ret[2] < 0) ?
+ portid : ipv6_l3fwd_out_if[ret[2]]);
+ dst_port[3] = (uint8_t) ((ret[3] < 0) ?
+ portid : ipv6_l3fwd_out_if[ret[3]]);
+ dst_port[4] = (uint8_t) ((ret[4] < 0) ?
+ portid : ipv6_l3fwd_out_if[ret[4]]);
+ dst_port[5] = (uint8_t) ((ret[5] < 0) ?
+ portid : ipv6_l3fwd_out_if[ret[5]]);
+ dst_port[6] = (uint8_t) ((ret[6] < 0) ?
+ portid : ipv6_l3fwd_out_if[ret[6]]);
+ dst_port[7] = (uint8_t) ((ret[7] < 0) ?
+ portid : ipv6_l3fwd_out_if[ret[7]]);
+
+ if (dst_port[0] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[0]) == 0)
+ dst_port[0] = portid;
+
+ if (dst_port[1] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[1]) == 0)
+ dst_port[1] = portid;
+
+ if (dst_port[2] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[2]) == 0)
+ dst_port[2] = portid;
+
+ if (dst_port[3] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[3]) == 0)
+ dst_port[3] = portid;
+
+ if (dst_port[4] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[4]) == 0)
+ dst_port[4] = portid;
+
+ if (dst_port[5] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[5]) == 0)
+ dst_port[5] = portid;
+
+ if (dst_port[6] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[6]) == 0)
+ dst_port[6] = portid;
+
+ if (dst_port[7] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[7]) == 0)
+ dst_port[7] = portid;
+
+}
+
+static inline __attribute__((always_inline)) uint16_t
+em_get_dst_port(const struct lcore_conf *qconf, struct rte_mbuf *pkt,
+ uint8_t portid)
+{
+ uint8_t next_hop;
+ struct ipv4_hdr *ipv4_hdr;
+ struct ipv6_hdr *ipv6_hdr;
+ uint32_t tcp_or_udp;
+ uint32_t l3_ptypes;
+
+ tcp_or_udp = pkt->packet_type & (RTE_PTYPE_L4_TCP | RTE_PTYPE_L4_UDP);
+ l3_ptypes = pkt->packet_type & RTE_PTYPE_L3_MASK;
+
+ if (tcp_or_udp && (l3_ptypes == RTE_PTYPE_L3_IPV4)) {
+
+ /* Handle IPv4 headers.*/
+ ipv4_hdr = rte_pktmbuf_mtod_offset(pkt, struct ipv4_hdr *,
+ sizeof(struct ether_hdr));
+
+ next_hop = em_get_ipv4_dst_port(ipv4_hdr, portid,
+ qconf->ipv4_lookup_struct);
+
+ if (next_hop >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << next_hop) == 0)
+ next_hop = portid;
+
+ return next_hop;
+
+ } else if (tcp_or_udp && (l3_ptypes == RTE_PTYPE_L3_IPV6)) {
+
+ /* Handle IPv6 headers.*/
+ ipv6_hdr = rte_pktmbuf_mtod_offset(pkt, struct ipv6_hdr *,
+ sizeof(struct ether_hdr));
+
+ next_hop = em_get_ipv6_dst_port(ipv6_hdr, portid,
+ qconf->ipv6_lookup_struct);
+
+ if (next_hop >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << next_hop) == 0)
+ next_hop = portid;
+
+ return next_hop;
+
+ }
+
+ return portid;
+}
+
+/*
+ * Buffer optimized handling of packets, invoked
+ * from main_loop.
+ */
+static inline void
+l3fwd_em_send_packets(int nb_rx, struct rte_mbuf **pkts_burst,
+ uint8_t portid, struct lcore_conf *qconf)
+{
+ int32_t j;
+ uint16_t dst_port[MAX_PKT_BURST];
+
+ /*
+ * Send nb_rx - nb_rx%8 packets
+ * in groups of 8.
+ */
+ int32_t n = RTE_ALIGN_FLOOR(nb_rx, 8);
+
+ for (j = 0; j < n; j += 8) {
+
+ uint32_t pkt_type =
+ pkts_burst[j]->packet_type &
+ pkts_burst[j+1]->packet_type &
+ pkts_burst[j+2]->packet_type &
+ pkts_burst[j+3]->packet_type &
+ pkts_burst[j+4]->packet_type &
+ pkts_burst[j+5]->packet_type &
+ pkts_burst[j+6]->packet_type &
+ pkts_burst[j+7]->packet_type;
+
+ uint32_t l3_type = pkt_type & RTE_PTYPE_L3_MASK;
+ uint32_t tcp_or_udp = pkt_type &
+ (RTE_PTYPE_L4_TCP | RTE_PTYPE_L4_UDP);
+
+ if (tcp_or_udp && (l3_type == RTE_PTYPE_L3_IPV4)) {
+
+ em_get_dst_port_ipv4x8(qconf, &pkts_burst[j], portid, &dst_port[j]);
+
+ } else if (tcp_or_udp && (l3_type == RTE_PTYPE_L3_IPV6)) {
+
+ em_get_dst_port_ipv6x8(qconf, &pkts_burst[j], portid, &dst_port[j]);
+
+ } else {
+ dst_port[j] = em_get_dst_port(qconf, pkts_burst[j], portid);
+ dst_port[j+1] = em_get_dst_port(qconf, pkts_burst[j+1], portid);
+ dst_port[j+2] = em_get_dst_port(qconf, pkts_burst[j+2], portid);
+ dst_port[j+3] = em_get_dst_port(qconf, pkts_burst[j+3], portid);
+ dst_port[j+4] = em_get_dst_port(qconf, pkts_burst[j+4], portid);
+ dst_port[j+5] = em_get_dst_port(qconf, pkts_burst[j+5], portid);
+ dst_port[j+6] = em_get_dst_port(qconf, pkts_burst[j+6], portid);
+ dst_port[j+7] = em_get_dst_port(qconf, pkts_burst[j+7], portid);
+ }
+ }
+
+ for (; j < nb_rx; j++)
+ dst_port[j] = em_get_dst_port(qconf, pkts_burst[j], portid);
+
+ send_packets_multi(qconf, pkts_burst, dst_port, nb_rx);
+
+}
+#endif /* __L3FWD_EM_SSE_HLM_H__ */
diff --git a/examples/l3fwd/l3fwd_em_sse.h b/examples/l3fwd/l3fwd_em_sse.h
new file mode 100644
index 00000000..c0a9725a
--- /dev/null
+++ b/examples/l3fwd/l3fwd_em_sse.h
@@ -0,0 +1,112 @@
+/*-
+ * 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.
+ */
+
+#ifndef __L3FWD_EM_SSE_H__
+#define __L3FWD_EM_SSE_H__
+
+/**
+ * @file
+ * This is an optional implementation of packet classification in Exact-Match
+ * path using sequential packet classification method.
+ * While hash lookup multi seems to provide better performance, it's disabled
+ * by default and can be enabled with NO_HASH_LOOKUP_MULTI global define in
+ * compilation time.
+ */
+
+#include "l3fwd_sse.h"
+
+static inline __attribute__((always_inline)) uint16_t
+em_get_dst_port(const struct lcore_conf *qconf, struct rte_mbuf *pkt,
+ uint8_t portid)
+{
+ uint8_t next_hop;
+ struct ipv4_hdr *ipv4_hdr;
+ struct ipv6_hdr *ipv6_hdr;
+ uint32_t tcp_or_udp;
+ uint32_t l3_ptypes;
+
+ tcp_or_udp = pkt->packet_type & (RTE_PTYPE_L4_TCP | RTE_PTYPE_L4_UDP);
+ l3_ptypes = pkt->packet_type & RTE_PTYPE_L3_MASK;
+
+ if (tcp_or_udp && (l3_ptypes == RTE_PTYPE_L3_IPV4)) {
+
+ /* Handle IPv4 headers.*/
+ ipv4_hdr = rte_pktmbuf_mtod_offset(pkt, struct ipv4_hdr *,
+ sizeof(struct ether_hdr));
+
+ next_hop = em_get_ipv4_dst_port(ipv4_hdr, portid,
+ qconf->ipv4_lookup_struct);
+
+ if (next_hop >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << next_hop) == 0)
+ next_hop = portid;
+
+ return next_hop;
+
+ } else if (tcp_or_udp && (l3_ptypes == RTE_PTYPE_L3_IPV6)) {
+
+ /* Handle IPv6 headers.*/
+ ipv6_hdr = rte_pktmbuf_mtod_offset(pkt, struct ipv6_hdr *,
+ sizeof(struct ether_hdr));
+
+ next_hop = em_get_ipv6_dst_port(ipv6_hdr, portid,
+ qconf->ipv6_lookup_struct);
+
+ if (next_hop >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << next_hop) == 0)
+ next_hop = portid;
+
+ return next_hop;
+
+ }
+
+ return portid;
+}
+
+/*
+ * Buffer optimized handling of packets, invoked
+ * from main_loop.
+ */
+static inline void
+l3fwd_em_send_packets(int nb_rx, struct rte_mbuf **pkts_burst,
+ uint8_t portid, struct lcore_conf *qconf)
+{
+ int32_t j;
+ uint16_t dst_port[MAX_PKT_BURST];
+
+ for (j = 0; j < nb_rx; j++)
+ dst_port[j] = em_get_dst_port(qconf, pkts_burst[j], portid);
+
+ send_packets_multi(qconf, pkts_burst, dst_port, nb_rx);
+}
+#endif /* __L3FWD_EM_SSE_H__ */
diff --git a/examples/l3fwd/l3fwd_lpm.c b/examples/l3fwd/l3fwd_lpm.c
new file mode 100644
index 00000000..d941bdfd
--- /dev/null
+++ b/examples/l3fwd/l3fwd_lpm.c
@@ -0,0 +1,356 @@
+/*-
+ * 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 <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <sys/types.h>
+#include <string.h>
+#include <sys/queue.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <getopt.h>
+#include <stdbool.h>
+
+#include <rte_debug.h>
+#include <rte_ether.h>
+#include <rte_ethdev.h>
+#include <rte_ring.h>
+#include <rte_mempool.h>
+#include <rte_cycles.h>
+#include <rte_mbuf.h>
+#include <rte_ip.h>
+#include <rte_tcp.h>
+#include <rte_udp.h>
+#include <rte_lpm.h>
+#include <rte_lpm6.h>
+
+#include "l3fwd.h"
+
+struct ipv4_l3fwd_lpm_route {
+ uint32_t ip;
+ uint8_t depth;
+ uint8_t if_out;
+};
+
+struct ipv6_l3fwd_lpm_route {
+ uint8_t ip[16];
+ uint8_t depth;
+ uint8_t if_out;
+};
+
+static struct ipv4_l3fwd_lpm_route ipv4_l3fwd_lpm_route_array[] = {
+ {IPv4(1, 1, 1, 0), 24, 0},
+ {IPv4(2, 1, 1, 0), 24, 1},
+ {IPv4(3, 1, 1, 0), 24, 2},
+ {IPv4(4, 1, 1, 0), 24, 3},
+ {IPv4(5, 1, 1, 0), 24, 4},
+ {IPv4(6, 1, 1, 0), 24, 5},
+ {IPv4(7, 1, 1, 0), 24, 6},
+ {IPv4(8, 1, 1, 0), 24, 7},
+};
+
+static struct ipv6_l3fwd_lpm_route ipv6_l3fwd_lpm_route_array[] = {
+ {{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 0},
+ {{2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 1},
+ {{3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 2},
+ {{4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 3},
+ {{5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 4},
+ {{6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 5},
+ {{7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 6},
+ {{8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 7},
+};
+
+#define IPV4_L3FWD_LPM_NUM_ROUTES \
+ (sizeof(ipv4_l3fwd_lpm_route_array) / sizeof(ipv4_l3fwd_lpm_route_array[0]))
+#define IPV6_L3FWD_LPM_NUM_ROUTES \
+ (sizeof(ipv6_l3fwd_lpm_route_array) / sizeof(ipv6_l3fwd_lpm_route_array[0]))
+
+#define IPV4_L3FWD_LPM_MAX_RULES 1024
+#define IPV4_L3FWD_LPM_NUMBER_TBL8S (1 << 8)
+#define IPV6_L3FWD_LPM_MAX_RULES 1024
+#define IPV6_L3FWD_LPM_NUMBER_TBL8S (1 << 16)
+
+struct rte_lpm *ipv4_l3fwd_lpm_lookup_struct[NB_SOCKETS];
+struct rte_lpm6 *ipv6_l3fwd_lpm_lookup_struct[NB_SOCKETS];
+
+#if defined(__SSE4_1__)
+#include "l3fwd_lpm_sse.h"
+#else
+#include "l3fwd_lpm.h"
+#endif
+
+/* main processing loop */
+int
+lpm_main_loop(__attribute__((unused)) void *dummy)
+{
+ struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
+ unsigned lcore_id;
+ uint64_t prev_tsc, diff_tsc, cur_tsc;
+ int i, nb_rx;
+ uint8_t portid, queueid;
+ struct lcore_conf *qconf;
+ const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) /
+ US_PER_S * BURST_TX_DRAIN_US;
+
+ prev_tsc = 0;
+
+ lcore_id = rte_lcore_id();
+ qconf = &lcore_conf[lcore_id];
+
+ if (qconf->n_rx_queue == 0) {
+ RTE_LOG(INFO, L3FWD, "lcore %u has nothing to do\n", lcore_id);
+ return 0;
+ }
+
+ RTE_LOG(INFO, L3FWD, "entering main loop on lcore %u\n", lcore_id);
+
+ for (i = 0; i < qconf->n_rx_queue; i++) {
+
+ portid = qconf->rx_queue_list[i].port_id;
+ queueid = qconf->rx_queue_list[i].queue_id;
+ RTE_LOG(INFO, L3FWD,
+ " -- lcoreid=%u portid=%hhu rxqueueid=%hhu\n",
+ lcore_id, portid, queueid);
+ }
+
+ while (!force_quit) {
+
+ cur_tsc = rte_rdtsc();
+
+ /*
+ * TX burst queue drain
+ */
+ diff_tsc = cur_tsc - prev_tsc;
+ if (unlikely(diff_tsc > drain_tsc)) {
+
+ for (i = 0; i < qconf->n_tx_port; ++i) {
+ portid = qconf->tx_port_id[i];
+ if (qconf->tx_mbufs[portid].len == 0)
+ continue;
+ send_burst(qconf,
+ qconf->tx_mbufs[portid].len,
+ portid);
+ qconf->tx_mbufs[portid].len = 0;
+ }
+
+ prev_tsc = cur_tsc;
+ }
+
+ /*
+ * Read packet from RX queues
+ */
+ for (i = 0; i < qconf->n_rx_queue; ++i) {
+ portid = qconf->rx_queue_list[i].port_id;
+ queueid = qconf->rx_queue_list[i].queue_id;
+ nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
+ MAX_PKT_BURST);
+ if (nb_rx == 0)
+ continue;
+
+#if defined(__SSE4_1__)
+ l3fwd_lpm_send_packets(nb_rx, pkts_burst,
+ portid, qconf);
+#else
+ l3fwd_lpm_no_opt_send_packets(nb_rx, pkts_burst,
+ portid, qconf);
+#endif /* __SSE_4_1__ */
+ }
+ }
+
+ return 0;
+}
+
+void
+setup_lpm(const int socketid)
+{
+ struct rte_lpm6_config config;
+ struct rte_lpm_config config_ipv4;
+ unsigned i;
+ int ret;
+ char s[64];
+
+ /* create the LPM table */
+ config_ipv4.max_rules = IPV4_L3FWD_LPM_MAX_RULES;
+ config_ipv4.number_tbl8s = IPV4_L3FWD_LPM_NUMBER_TBL8S;
+ config_ipv4.flags = 0;
+ snprintf(s, sizeof(s), "IPV4_L3FWD_LPM_%d", socketid);
+ ipv4_l3fwd_lpm_lookup_struct[socketid] =
+ rte_lpm_create(s, socketid, &config_ipv4);
+ if (ipv4_l3fwd_lpm_lookup_struct[socketid] == NULL)
+ rte_exit(EXIT_FAILURE,
+ "Unable to create the l3fwd LPM table on socket %d\n",
+ socketid);
+
+ /* populate the LPM table */
+ for (i = 0; i < IPV4_L3FWD_LPM_NUM_ROUTES; i++) {
+
+ /* skip unused ports */
+ if ((1 << ipv4_l3fwd_lpm_route_array[i].if_out &
+ enabled_port_mask) == 0)
+ continue;
+
+ ret = rte_lpm_add(ipv4_l3fwd_lpm_lookup_struct[socketid],
+ ipv4_l3fwd_lpm_route_array[i].ip,
+ ipv4_l3fwd_lpm_route_array[i].depth,
+ ipv4_l3fwd_lpm_route_array[i].if_out);
+
+ if (ret < 0) {
+ rte_exit(EXIT_FAILURE,
+ "Unable to add entry %u to the l3fwd LPM table on socket %d\n",
+ i, socketid);
+ }
+
+ printf("LPM: Adding route 0x%08x / %d (%d)\n",
+ (unsigned)ipv4_l3fwd_lpm_route_array[i].ip,
+ ipv4_l3fwd_lpm_route_array[i].depth,
+ ipv4_l3fwd_lpm_route_array[i].if_out);
+ }
+
+ /* create the LPM6 table */
+ snprintf(s, sizeof(s), "IPV6_L3FWD_LPM_%d", socketid);
+
+ config.max_rules = IPV6_L3FWD_LPM_MAX_RULES;
+ config.number_tbl8s = IPV6_L3FWD_LPM_NUMBER_TBL8S;
+ config.flags = 0;
+ ipv6_l3fwd_lpm_lookup_struct[socketid] = rte_lpm6_create(s, socketid,
+ &config);
+ if (ipv6_l3fwd_lpm_lookup_struct[socketid] == NULL)
+ rte_exit(EXIT_FAILURE,
+ "Unable to create the l3fwd LPM table on socket %d\n",
+ socketid);
+
+ /* populate the LPM table */
+ for (i = 0; i < IPV6_L3FWD_LPM_NUM_ROUTES; i++) {
+
+ /* skip unused ports */
+ if ((1 << ipv6_l3fwd_lpm_route_array[i].if_out &
+ enabled_port_mask) == 0)
+ continue;
+
+ ret = rte_lpm6_add(ipv6_l3fwd_lpm_lookup_struct[socketid],
+ ipv6_l3fwd_lpm_route_array[i].ip,
+ ipv6_l3fwd_lpm_route_array[i].depth,
+ ipv6_l3fwd_lpm_route_array[i].if_out);
+
+ if (ret < 0) {
+ rte_exit(EXIT_FAILURE,
+ "Unable to add entry %u to the l3fwd LPM table on socket %d\n",
+ i, socketid);
+ }
+
+ printf("LPM: Adding route %s / %d (%d)\n",
+ "IPV6",
+ ipv6_l3fwd_lpm_route_array[i].depth,
+ ipv6_l3fwd_lpm_route_array[i].if_out);
+ }
+}
+
+int
+lpm_check_ptype(int portid)
+{
+ int i, ret;
+ int ptype_l3_ipv4 = 0, ptype_l3_ipv6 = 0;
+ uint32_t ptype_mask = RTE_PTYPE_L3_MASK;
+
+ ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, NULL, 0);
+ if (ret <= 0)
+ return 0;
+
+ uint32_t ptypes[ret];
+
+ ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, ptypes, ret);
+ for (i = 0; i < ret; ++i) {
+ if (ptypes[i] & RTE_PTYPE_L3_IPV4)
+ ptype_l3_ipv4 = 1;
+ if (ptypes[i] & RTE_PTYPE_L3_IPV6)
+ ptype_l3_ipv6 = 1;
+ }
+
+ if (ptype_l3_ipv4 == 0)
+ printf("port %d cannot parse RTE_PTYPE_L3_IPV4\n", portid);
+
+ if (ptype_l3_ipv6 == 0)
+ printf("port %d cannot parse RTE_PTYPE_L3_IPV6\n", portid);
+
+ if (ptype_l3_ipv4 && ptype_l3_ipv6)
+ return 1;
+
+ return 0;
+
+}
+
+static inline void
+lpm_parse_ptype(struct rte_mbuf *m)
+{
+ struct ether_hdr *eth_hdr;
+ uint32_t packet_type = RTE_PTYPE_UNKNOWN;
+ uint16_t ether_type;
+
+ eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);
+ ether_type = eth_hdr->ether_type;
+ if (ether_type == rte_cpu_to_be_16(ETHER_TYPE_IPv4))
+ packet_type |= RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
+ else if (ether_type == rte_cpu_to_be_16(ETHER_TYPE_IPv6))
+ packet_type |= RTE_PTYPE_L3_IPV6_EXT_UNKNOWN;
+
+ m->packet_type = packet_type;
+}
+
+uint16_t
+lpm_cb_parse_ptype(uint8_t port __rte_unused, uint16_t queue __rte_unused,
+ struct rte_mbuf *pkts[], uint16_t nb_pkts,
+ uint16_t max_pkts __rte_unused,
+ void *user_param __rte_unused)
+{
+ unsigned i;
+
+ for (i = 0; i < nb_pkts; ++i)
+ lpm_parse_ptype(pkts[i]);
+
+ return nb_pkts;
+}
+
+/* Return ipv4/ipv6 lpm fwd lookup struct. */
+void *
+lpm_get_ipv4_l3fwd_lookup_struct(const int socketid)
+{
+ return ipv4_l3fwd_lpm_lookup_struct[socketid];
+}
+
+void *
+lpm_get_ipv6_l3fwd_lookup_struct(const int socketid)
+{
+ return ipv6_l3fwd_lpm_lookup_struct[socketid];
+}
diff --git a/examples/l3fwd/l3fwd_lpm.h b/examples/l3fwd/l3fwd_lpm.h
new file mode 100644
index 00000000..a43c5070
--- /dev/null
+++ b/examples/l3fwd/l3fwd_lpm.h
@@ -0,0 +1,151 @@
+/*-
+ * 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.
+ */
+
+#ifndef __L3FWD_LPM_H__
+#define __L3FWD_LPM_H__
+
+static inline uint8_t
+lpm_get_ipv4_dst_port(void *ipv4_hdr, uint8_t portid, void *lookup_struct)
+{
+ uint32_t next_hop;
+ struct rte_lpm *ipv4_l3fwd_lookup_struct =
+ (struct rte_lpm *)lookup_struct;
+
+ return (uint8_t) ((rte_lpm_lookup(ipv4_l3fwd_lookup_struct,
+ rte_be_to_cpu_32(((struct ipv4_hdr *)ipv4_hdr)->dst_addr),
+ &next_hop) == 0) ? next_hop : portid);
+}
+
+static inline uint8_t
+lpm_get_ipv6_dst_port(void *ipv6_hdr, uint8_t portid, void *lookup_struct)
+{
+ uint8_t next_hop;
+ struct rte_lpm6 *ipv6_l3fwd_lookup_struct =
+ (struct rte_lpm6 *)lookup_struct;
+
+ return (uint8_t) ((rte_lpm6_lookup(ipv6_l3fwd_lookup_struct,
+ ((struct ipv6_hdr *)ipv6_hdr)->dst_addr,
+ &next_hop) == 0) ? next_hop : portid);
+}
+
+static inline __attribute__((always_inline)) void
+l3fwd_lpm_simple_forward(struct rte_mbuf *m, uint8_t portid,
+ struct lcore_conf *qconf)
+{
+ struct ether_hdr *eth_hdr;
+ struct ipv4_hdr *ipv4_hdr;
+ uint8_t dst_port;
+
+ eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);
+
+ if (RTE_ETH_IS_IPV4_HDR(m->packet_type)) {
+ /* Handle IPv4 headers.*/
+ ipv4_hdr = rte_pktmbuf_mtod_offset(m, struct ipv4_hdr *,
+ sizeof(struct ether_hdr));
+
+#ifdef DO_RFC_1812_CHECKS
+ /* Check to make sure the packet is valid (RFC1812) */
+ if (is_valid_ipv4_pkt(ipv4_hdr, m->pkt_len) < 0) {
+ rte_pktmbuf_free(m);
+ return;
+ }
+#endif
+ dst_port = lpm_get_ipv4_dst_port(ipv4_hdr, portid,
+ qconf->ipv4_lookup_struct);
+
+ if (dst_port >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port) == 0)
+ dst_port = portid;
+
+#ifdef DO_RFC_1812_CHECKS
+ /* Update time to live and header checksum */
+ --(ipv4_hdr->time_to_live);
+ ++(ipv4_hdr->hdr_checksum);
+#endif
+ /* dst addr */
+ *(uint64_t *)&eth_hdr->d_addr = dest_eth_addr[dst_port];
+
+ /* src addr */
+ ether_addr_copy(&ports_eth_addr[dst_port], &eth_hdr->s_addr);
+
+ send_single_packet(qconf, m, dst_port);
+ } else if (RTE_ETH_IS_IPV6_HDR(m->packet_type)) {
+ /* Handle IPv6 headers.*/
+ struct ipv6_hdr *ipv6_hdr;
+
+ ipv6_hdr = rte_pktmbuf_mtod_offset(m, struct ipv6_hdr *,
+ sizeof(struct ether_hdr));
+
+ dst_port = lpm_get_ipv6_dst_port(ipv6_hdr, portid,
+ qconf->ipv6_lookup_struct);
+
+ if (dst_port >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port) == 0)
+ dst_port = portid;
+
+ /* dst addr */
+ *(uint64_t *)&eth_hdr->d_addr = dest_eth_addr[dst_port];
+
+ /* src addr */
+ ether_addr_copy(&ports_eth_addr[dst_port], &eth_hdr->s_addr);
+
+ send_single_packet(qconf, m, dst_port);
+ } else {
+ /* Free the mbuf that contains non-IPV4/IPV6 packet */
+ rte_pktmbuf_free(m);
+ }
+}
+
+static inline void
+l3fwd_lpm_no_opt_send_packets(int nb_rx, struct rte_mbuf **pkts_burst,
+ uint8_t portid, struct lcore_conf *qconf)
+{
+ int32_t j;
+
+ /* Prefetch first packets */
+ for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++)
+ rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[j], void *));
+
+ /* Prefetch and forward already prefetched packets. */
+ for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
+ rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
+ j + PREFETCH_OFFSET], void *));
+ l3fwd_lpm_simple_forward(pkts_burst[j], portid, qconf);
+ }
+
+ /* Forward remaining prefetched packets */
+ for (; j < nb_rx; j++)
+ l3fwd_lpm_simple_forward(pkts_burst[j], portid, qconf);
+}
+
+#endif /* __L3FWD_LPM_H__ */
diff --git a/examples/l3fwd/l3fwd_lpm_sse.h b/examples/l3fwd/l3fwd_lpm_sse.h
new file mode 100644
index 00000000..538fe3d7
--- /dev/null
+++ b/examples/l3fwd/l3fwd_lpm_sse.h
@@ -0,0 +1,213 @@
+/*-
+ * 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.
+ */
+
+#ifndef __L3FWD_LPM_SSE_H__
+#define __L3FWD_LPM_SSE_H__
+
+#include "l3fwd_sse.h"
+
+static inline __attribute__((always_inline)) uint16_t
+lpm_get_dst_port(const struct lcore_conf *qconf, struct rte_mbuf *pkt,
+ uint8_t portid)
+{
+ uint32_t next_hop_ipv4;
+ uint8_t next_hop_ipv6;
+ struct ipv6_hdr *ipv6_hdr;
+ struct ipv4_hdr *ipv4_hdr;
+ struct ether_hdr *eth_hdr;
+
+ if (RTE_ETH_IS_IPV4_HDR(pkt->packet_type)) {
+
+ eth_hdr = rte_pktmbuf_mtod(pkt, struct ether_hdr *);
+ ipv4_hdr = (struct ipv4_hdr *)(eth_hdr + 1);
+
+ return (uint16_t) ((rte_lpm_lookup(qconf->ipv4_lookup_struct,
+ rte_be_to_cpu_32(ipv4_hdr->dst_addr), &next_hop_ipv4) == 0) ?
+ next_hop_ipv4 : portid);
+
+ } else if (RTE_ETH_IS_IPV6_HDR(pkt->packet_type)) {
+
+ eth_hdr = rte_pktmbuf_mtod(pkt, struct ether_hdr *);
+ ipv6_hdr = (struct ipv6_hdr *)(eth_hdr + 1);
+
+ return (uint16_t) ((rte_lpm6_lookup(qconf->ipv6_lookup_struct,
+ ipv6_hdr->dst_addr, &next_hop_ipv6) == 0)
+ ? next_hop_ipv6 : portid);
+
+ }
+
+ return portid;
+}
+
+/*
+ * lpm_get_dst_port optimized routine for packets where dst_ipv4 is already
+ * precalculated. If packet is ipv6 dst_addr is taken directly from packet
+ * header and dst_ipv4 value is not used.
+ */
+static inline __attribute__((always_inline)) uint16_t
+lpm_get_dst_port_with_ipv4(const struct lcore_conf *qconf, struct rte_mbuf *pkt,
+ uint32_t dst_ipv4, uint8_t portid)
+{
+ uint32_t next_hop_ipv4;
+ uint8_t next_hop_ipv6;
+ struct ipv6_hdr *ipv6_hdr;
+ struct ether_hdr *eth_hdr;
+
+ if (RTE_ETH_IS_IPV4_HDR(pkt->packet_type)) {
+ return (uint16_t) ((rte_lpm_lookup(qconf->ipv4_lookup_struct, dst_ipv4,
+ &next_hop_ipv4) == 0) ? next_hop_ipv4 : portid);
+
+ } else if (RTE_ETH_IS_IPV6_HDR(pkt->packet_type)) {
+
+ eth_hdr = rte_pktmbuf_mtod(pkt, struct ether_hdr *);
+ ipv6_hdr = (struct ipv6_hdr *)(eth_hdr + 1);
+
+ return (uint16_t) ((rte_lpm6_lookup(qconf->ipv6_lookup_struct,
+ ipv6_hdr->dst_addr, &next_hop_ipv6) == 0)
+ ? next_hop_ipv6 : portid);
+
+ }
+
+ return portid;
+
+}
+
+/*
+ * Read packet_type and destination IPV4 addresses from 4 mbufs.
+ */
+static inline void
+processx4_step1(struct rte_mbuf *pkt[FWDSTEP],
+ __m128i *dip,
+ uint32_t *ipv4_flag)
+{
+ struct ipv4_hdr *ipv4_hdr;
+ struct ether_hdr *eth_hdr;
+ uint32_t x0, x1, x2, x3;
+
+ eth_hdr = rte_pktmbuf_mtod(pkt[0], struct ether_hdr *);
+ ipv4_hdr = (struct ipv4_hdr *)(eth_hdr + 1);
+ x0 = ipv4_hdr->dst_addr;
+ ipv4_flag[0] = pkt[0]->packet_type & RTE_PTYPE_L3_IPV4;
+
+ eth_hdr = rte_pktmbuf_mtod(pkt[1], struct ether_hdr *);
+ ipv4_hdr = (struct ipv4_hdr *)(eth_hdr + 1);
+ x1 = ipv4_hdr->dst_addr;
+ ipv4_flag[0] &= pkt[1]->packet_type;
+
+ eth_hdr = rte_pktmbuf_mtod(pkt[2], struct ether_hdr *);
+ ipv4_hdr = (struct ipv4_hdr *)(eth_hdr + 1);
+ x2 = ipv4_hdr->dst_addr;
+ ipv4_flag[0] &= pkt[2]->packet_type;
+
+ eth_hdr = rte_pktmbuf_mtod(pkt[3], struct ether_hdr *);
+ ipv4_hdr = (struct ipv4_hdr *)(eth_hdr + 1);
+ x3 = ipv4_hdr->dst_addr;
+ ipv4_flag[0] &= pkt[3]->packet_type;
+
+ dip[0] = _mm_set_epi32(x3, x2, x1, x0);
+}
+
+/*
+ * Lookup into LPM for destination port.
+ * If lookup fails, use incoming port (portid) as destination port.
+ */
+static inline void
+processx4_step2(const struct lcore_conf *qconf,
+ __m128i dip,
+ uint32_t ipv4_flag,
+ uint8_t portid,
+ struct rte_mbuf *pkt[FWDSTEP],
+ uint16_t dprt[FWDSTEP])
+{
+ rte_xmm_t dst;
+ const __m128i bswap_mask = _mm_set_epi8(12, 13, 14, 15, 8, 9, 10, 11,
+ 4, 5, 6, 7, 0, 1, 2, 3);
+
+ /* Byte swap 4 IPV4 addresses. */
+ dip = _mm_shuffle_epi8(dip, bswap_mask);
+
+ /* if all 4 packets are IPV4. */
+ if (likely(ipv4_flag)) {
+ rte_lpm_lookupx4(qconf->ipv4_lookup_struct, dip, dst.u32,
+ portid);
+ /* get rid of unused upper 16 bit for each dport. */
+ dst.x = _mm_packs_epi32(dst.x, dst.x);
+ *(uint64_t *)dprt = dst.u64[0];
+ } else {
+ dst.x = dip;
+ dprt[0] = lpm_get_dst_port_with_ipv4(qconf, pkt[0], dst.u32[0], portid);
+ dprt[1] = lpm_get_dst_port_with_ipv4(qconf, pkt[1], dst.u32[1], portid);
+ dprt[2] = lpm_get_dst_port_with_ipv4(qconf, pkt[2], dst.u32[2], portid);
+ dprt[3] = lpm_get_dst_port_with_ipv4(qconf, pkt[3], dst.u32[3], portid);
+ }
+}
+
+/*
+ * Buffer optimized handling of packets, invoked
+ * from main_loop.
+ */
+static inline void
+l3fwd_lpm_send_packets(int nb_rx, struct rte_mbuf **pkts_burst,
+ uint8_t portid, struct lcore_conf *qconf)
+{
+ int32_t j;
+ uint16_t dst_port[MAX_PKT_BURST];
+ __m128i dip[MAX_PKT_BURST / FWDSTEP];
+ uint32_t ipv4_flag[MAX_PKT_BURST / FWDSTEP];
+ const int32_t k = RTE_ALIGN_FLOOR(nb_rx, FWDSTEP);
+
+ for (j = 0; j != k; j += FWDSTEP)
+ processx4_step1(&pkts_burst[j], &dip[j / FWDSTEP],
+ &ipv4_flag[j / FWDSTEP]);
+
+ for (j = 0; j != k; j += FWDSTEP)
+ processx4_step2(qconf, dip[j / FWDSTEP],
+ ipv4_flag[j / FWDSTEP], portid, &pkts_burst[j], &dst_port[j]);
+
+ /* Classify last up to 3 packets one by one */
+ switch (nb_rx % FWDSTEP) {
+ case 3:
+ dst_port[j] = lpm_get_dst_port(qconf, pkts_burst[j], portid);
+ j++;
+ case 2:
+ dst_port[j] = lpm_get_dst_port(qconf, pkts_burst[j], portid);
+ j++;
+ case 1:
+ dst_port[j] = lpm_get_dst_port(qconf, pkts_burst[j], portid);
+ j++;
+ }
+
+ send_packets_multi(qconf, pkts_burst, dst_port, nb_rx);
+}
+
+#endif /* __L3FWD_LPM_SSE_H__ */
diff --git a/examples/l3fwd/l3fwd_sse.h b/examples/l3fwd/l3fwd_sse.h
new file mode 100644
index 00000000..1afa1f00
--- /dev/null
+++ b/examples/l3fwd/l3fwd_sse.h
@@ -0,0 +1,501 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 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.
+ */
+
+
+#ifndef _L3FWD_COMMON_H_
+#define _L3FWD_COMMON_H_
+
+#include "l3fwd.h"
+
+#ifdef DO_RFC_1812_CHECKS
+
+#define IPV4_MIN_VER_IHL 0x45
+#define IPV4_MAX_VER_IHL 0x4f
+#define IPV4_MAX_VER_IHL_DIFF (IPV4_MAX_VER_IHL - IPV4_MIN_VER_IHL)
+
+/* Minimum value of IPV4 total length (20B) in network byte order. */
+#define IPV4_MIN_LEN_BE (sizeof(struct ipv4_hdr) << 8)
+
+/*
+ * From http://www.rfc-editor.org/rfc/rfc1812.txt section 5.2.2:
+ * - The IP version number must be 4.
+ * - The IP header length field must be large enough to hold the
+ * minimum length legal IP datagram (20 bytes = 5 words).
+ * - The IP total length field must be large enough to hold the IP
+ * datagram header, whose length is specified in the IP header length
+ * field.
+ * If we encounter invalid IPV4 packet, then set destination port for it
+ * to BAD_PORT value.
+ */
+static inline __attribute__((always_inline)) void
+rfc1812_process(struct ipv4_hdr *ipv4_hdr, uint16_t *dp, uint32_t ptype)
+{
+ uint8_t ihl;
+
+ if (RTE_ETH_IS_IPV4_HDR(ptype)) {
+ ihl = ipv4_hdr->version_ihl - IPV4_MIN_VER_IHL;
+
+ ipv4_hdr->time_to_live--;
+ ipv4_hdr->hdr_checksum++;
+
+ if (ihl > IPV4_MAX_VER_IHL_DIFF ||
+ ((uint8_t)ipv4_hdr->total_length == 0 &&
+ ipv4_hdr->total_length < IPV4_MIN_LEN_BE))
+ dp[0] = BAD_PORT;
+
+ }
+}
+
+#else
+#define rfc1812_process(mb, dp, ptype) do { } while (0)
+#endif /* DO_RFC_1812_CHECKS */
+
+/*
+ * Update source and destination MAC addresses in the ethernet header.
+ * Perform RFC1812 checks and updates for IPV4 packets.
+ */
+static inline void
+processx4_step3(struct rte_mbuf *pkt[FWDSTEP], uint16_t dst_port[FWDSTEP])
+{
+ __m128i te[FWDSTEP];
+ __m128i ve[FWDSTEP];
+ __m128i *p[FWDSTEP];
+
+ p[0] = rte_pktmbuf_mtod(pkt[0], __m128i *);
+ p[1] = rte_pktmbuf_mtod(pkt[1], __m128i *);
+ p[2] = rte_pktmbuf_mtod(pkt[2], __m128i *);
+ p[3] = rte_pktmbuf_mtod(pkt[3], __m128i *);
+
+ ve[0] = val_eth[dst_port[0]];
+ te[0] = _mm_loadu_si128(p[0]);
+
+ ve[1] = val_eth[dst_port[1]];
+ te[1] = _mm_loadu_si128(p[1]);
+
+ ve[2] = val_eth[dst_port[2]];
+ te[2] = _mm_loadu_si128(p[2]);
+
+ ve[3] = val_eth[dst_port[3]];
+ te[3] = _mm_loadu_si128(p[3]);
+
+ /* Update first 12 bytes, keep rest bytes intact. */
+ te[0] = _mm_blend_epi16(te[0], ve[0], MASK_ETH);
+ te[1] = _mm_blend_epi16(te[1], ve[1], MASK_ETH);
+ te[2] = _mm_blend_epi16(te[2], ve[2], MASK_ETH);
+ te[3] = _mm_blend_epi16(te[3], ve[3], MASK_ETH);
+
+ _mm_storeu_si128(p[0], te[0]);
+ _mm_storeu_si128(p[1], te[1]);
+ _mm_storeu_si128(p[2], te[2]);
+ _mm_storeu_si128(p[3], te[3]);
+
+ rfc1812_process((struct ipv4_hdr *)((struct ether_hdr *)p[0] + 1),
+ &dst_port[0], pkt[0]->packet_type);
+ rfc1812_process((struct ipv4_hdr *)((struct ether_hdr *)p[1] + 1),
+ &dst_port[1], pkt[1]->packet_type);
+ rfc1812_process((struct ipv4_hdr *)((struct ether_hdr *)p[2] + 1),
+ &dst_port[2], pkt[2]->packet_type);
+ rfc1812_process((struct ipv4_hdr *)((struct ether_hdr *)p[3] + 1),
+ &dst_port[3], pkt[3]->packet_type);
+}
+
+/*
+ * We group consecutive packets with the same destionation port into one burst.
+ * To avoid extra latency this is done together with some other packet
+ * processing, but after we made a final decision about packet's destination.
+ * To do this we maintain:
+ * pnum - array of number of consecutive packets with the same dest port for
+ * each packet in the input burst.
+ * lp - pointer to the last updated element in the pnum.
+ * dlp - dest port value lp corresponds to.
+ */
+
+#define GRPSZ (1 << FWDSTEP)
+#define GRPMSK (GRPSZ - 1)
+
+#define GROUP_PORT_STEP(dlp, dcp, lp, pn, idx) do { \
+ if (likely((dlp) == (dcp)[(idx)])) { \
+ (lp)[0]++; \
+ } else { \
+ (dlp) = (dcp)[idx]; \
+ (lp) = (pn) + (idx); \
+ (lp)[0] = 1; \
+ } \
+} while (0)
+
+/*
+ * Group consecutive packets with the same destination port in bursts of 4.
+ * Suppose we have array of destionation ports:
+ * dst_port[] = {a, b, c, d,, e, ... }
+ * dp1 should contain: <a, b, c, d>, dp2: <b, c, d, e>.
+ * We doing 4 comparisions at once and the result is 4 bit mask.
+ * This mask is used as an index into prebuild array of pnum values.
+ */
+static inline uint16_t *
+port_groupx4(uint16_t pn[FWDSTEP + 1], uint16_t *lp, __m128i dp1, __m128i dp2)
+{
+ static const struct {
+ uint64_t pnum; /* prebuild 4 values for pnum[]. */
+ int32_t idx; /* index for new last updated elemnet. */
+ uint16_t lpv; /* add value to the last updated element. */
+ } gptbl[GRPSZ] = {
+ {
+ /* 0: a != b, b != c, c != d, d != e */
+ .pnum = UINT64_C(0x0001000100010001),
+ .idx = 4,
+ .lpv = 0,
+ },
+ {
+ /* 1: a == b, b != c, c != d, d != e */
+ .pnum = UINT64_C(0x0001000100010002),
+ .idx = 4,
+ .lpv = 1,
+ },
+ {
+ /* 2: a != b, b == c, c != d, d != e */
+ .pnum = UINT64_C(0x0001000100020001),
+ .idx = 4,
+ .lpv = 0,
+ },
+ {
+ /* 3: a == b, b == c, c != d, d != e */
+ .pnum = UINT64_C(0x0001000100020003),
+ .idx = 4,
+ .lpv = 2,
+ },
+ {
+ /* 4: a != b, b != c, c == d, d != e */
+ .pnum = UINT64_C(0x0001000200010001),
+ .idx = 4,
+ .lpv = 0,
+ },
+ {
+ /* 5: a == b, b != c, c == d, d != e */
+ .pnum = UINT64_C(0x0001000200010002),
+ .idx = 4,
+ .lpv = 1,
+ },
+ {
+ /* 6: a != b, b == c, c == d, d != e */
+ .pnum = UINT64_C(0x0001000200030001),
+ .idx = 4,
+ .lpv = 0,
+ },
+ {
+ /* 7: a == b, b == c, c == d, d != e */
+ .pnum = UINT64_C(0x0001000200030004),
+ .idx = 4,
+ .lpv = 3,
+ },
+ {
+ /* 8: a != b, b != c, c != d, d == e */
+ .pnum = UINT64_C(0x0002000100010001),
+ .idx = 3,
+ .lpv = 0,
+ },
+ {
+ /* 9: a == b, b != c, c != d, d == e */
+ .pnum = UINT64_C(0x0002000100010002),
+ .idx = 3,
+ .lpv = 1,
+ },
+ {
+ /* 0xa: a != b, b == c, c != d, d == e */
+ .pnum = UINT64_C(0x0002000100020001),
+ .idx = 3,
+ .lpv = 0,
+ },
+ {
+ /* 0xb: a == b, b == c, c != d, d == e */
+ .pnum = UINT64_C(0x0002000100020003),
+ .idx = 3,
+ .lpv = 2,
+ },
+ {
+ /* 0xc: a != b, b != c, c == d, d == e */
+ .pnum = UINT64_C(0x0002000300010001),
+ .idx = 2,
+ .lpv = 0,
+ },
+ {
+ /* 0xd: a == b, b != c, c == d, d == e */
+ .pnum = UINT64_C(0x0002000300010002),
+ .idx = 2,
+ .lpv = 1,
+ },
+ {
+ /* 0xe: a != b, b == c, c == d, d == e */
+ .pnum = UINT64_C(0x0002000300040001),
+ .idx = 1,
+ .lpv = 0,
+ },
+ {
+ /* 0xf: a == b, b == c, c == d, d == e */
+ .pnum = UINT64_C(0x0002000300040005),
+ .idx = 0,
+ .lpv = 4,
+ },
+ };
+
+ union {
+ uint16_t u16[FWDSTEP + 1];
+ uint64_t u64;
+ } *pnum = (void *)pn;
+
+ int32_t v;
+
+ dp1 = _mm_cmpeq_epi16(dp1, dp2);
+ dp1 = _mm_unpacklo_epi16(dp1, dp1);
+ v = _mm_movemask_ps((__m128)dp1);
+
+ /* update last port counter. */
+ lp[0] += gptbl[v].lpv;
+
+ /* if dest port value has changed. */
+ if (v != GRPMSK) {
+ pnum->u64 = gptbl[v].pnum;
+ pnum->u16[FWDSTEP] = 1;
+ lp = pnum->u16 + gptbl[v].idx;
+ }
+
+ return lp;
+}
+
+/**
+ * Process one packet:
+ * Update source and destination MAC addresses in the ethernet header.
+ * Perform RFC1812 checks and updates for IPV4 packets.
+ */
+static inline void
+process_packet(struct rte_mbuf *pkt, uint16_t *dst_port)
+{
+ struct ether_hdr *eth_hdr;
+ __m128i te, ve;
+
+ eth_hdr = rte_pktmbuf_mtod(pkt, struct ether_hdr *);
+
+ te = _mm_loadu_si128((__m128i *)eth_hdr);
+ ve = val_eth[dst_port[0]];
+
+ rfc1812_process((struct ipv4_hdr *)(eth_hdr + 1), dst_port,
+ pkt->packet_type);
+
+ te = _mm_blend_epi16(te, ve, MASK_ETH);
+ _mm_storeu_si128((__m128i *)eth_hdr, te);
+}
+
+static inline __attribute__((always_inline)) void
+send_packetsx4(struct lcore_conf *qconf, uint8_t port, struct rte_mbuf *m[],
+ uint32_t num)
+{
+ uint32_t len, j, n;
+
+ len = qconf->tx_mbufs[port].len;
+
+ /*
+ * If TX buffer for that queue is empty, and we have enough packets,
+ * then send them straightway.
+ */
+ if (num >= MAX_TX_BURST && len == 0) {
+ n = rte_eth_tx_burst(port, qconf->tx_queue_id[port], m, num);
+ if (unlikely(n < num)) {
+ do {
+ rte_pktmbuf_free(m[n]);
+ } while (++n < num);
+ }
+ return;
+ }
+
+ /*
+ * Put packets into TX buffer for that queue.
+ */
+
+ n = len + num;
+ n = (n > MAX_PKT_BURST) ? MAX_PKT_BURST - len : num;
+
+ j = 0;
+ switch (n % FWDSTEP) {
+ while (j < n) {
+ case 0:
+ qconf->tx_mbufs[port].m_table[len + j] = m[j];
+ j++;
+ case 3:
+ qconf->tx_mbufs[port].m_table[len + j] = m[j];
+ j++;
+ case 2:
+ qconf->tx_mbufs[port].m_table[len + j] = m[j];
+ j++;
+ case 1:
+ qconf->tx_mbufs[port].m_table[len + j] = m[j];
+ j++;
+ }
+ }
+
+ len += n;
+
+ /* enough pkts to be sent */
+ if (unlikely(len == MAX_PKT_BURST)) {
+
+ send_burst(qconf, MAX_PKT_BURST, port);
+
+ /* copy rest of the packets into the TX buffer. */
+ len = num - n;
+ j = 0;
+ switch (len % FWDSTEP) {
+ while (j < len) {
+ case 0:
+ qconf->tx_mbufs[port].m_table[j] = m[n + j];
+ j++;
+ case 3:
+ qconf->tx_mbufs[port].m_table[j] = m[n + j];
+ j++;
+ case 2:
+ qconf->tx_mbufs[port].m_table[j] = m[n + j];
+ j++;
+ case 1:
+ qconf->tx_mbufs[port].m_table[j] = m[n + j];
+ j++;
+ }
+ }
+ }
+
+ qconf->tx_mbufs[port].len = len;
+}
+
+/**
+ * Send packets burst from pkts_burst to the ports in dst_port array
+ */
+static inline __attribute__((always_inline)) void
+send_packets_multi(struct lcore_conf *qconf, struct rte_mbuf **pkts_burst,
+ uint16_t dst_port[MAX_PKT_BURST], int nb_rx)
+{
+ int32_t k;
+ int j = 0;
+ uint16_t dlp;
+ uint16_t *lp;
+ uint16_t pnum[MAX_PKT_BURST + 1];
+
+ /*
+ * Finish packet processing and group consecutive
+ * packets with the same destination port.
+ */
+ k = RTE_ALIGN_FLOOR(nb_rx, FWDSTEP);
+ if (k != 0) {
+ __m128i dp1, dp2;
+
+ lp = pnum;
+ lp[0] = 1;
+
+ processx4_step3(pkts_burst, dst_port);
+
+ /* dp1: <d[0], d[1], d[2], d[3], ... > */
+ dp1 = _mm_loadu_si128((__m128i *)dst_port);
+
+ for (j = FWDSTEP; j != k; j += FWDSTEP) {
+ processx4_step3(&pkts_burst[j], &dst_port[j]);
+
+ /*
+ * dp2:
+ * <d[j-3], d[j-2], d[j-1], d[j], ... >
+ */
+ dp2 = _mm_loadu_si128((__m128i *)
+ &dst_port[j - FWDSTEP + 1]);
+ lp = port_groupx4(&pnum[j - FWDSTEP], lp, dp1, dp2);
+
+ /*
+ * dp1:
+ * <d[j], d[j+1], d[j+2], d[j+3], ... >
+ */
+ dp1 = _mm_srli_si128(dp2, (FWDSTEP - 1) *
+ sizeof(dst_port[0]));
+ }
+
+ /*
+ * dp2: <d[j-3], d[j-2], d[j-1], d[j-1], ... >
+ */
+ dp2 = _mm_shufflelo_epi16(dp1, 0xf9);
+ lp = port_groupx4(&pnum[j - FWDSTEP], lp, dp1, dp2);
+
+ /*
+ * remove values added by the last repeated
+ * dst port.
+ */
+ lp[0]--;
+ dlp = dst_port[j - 1];
+ } else {
+ /* set dlp and lp to the never used values. */
+ dlp = BAD_PORT - 1;
+ lp = pnum + MAX_PKT_BURST;
+ }
+
+ /* Process up to last 3 packets one by one. */
+ switch (nb_rx % FWDSTEP) {
+ case 3:
+ process_packet(pkts_burst[j], dst_port + j);
+ GROUP_PORT_STEP(dlp, dst_port, lp, pnum, j);
+ j++;
+ case 2:
+ process_packet(pkts_burst[j], dst_port + j);
+ GROUP_PORT_STEP(dlp, dst_port, lp, pnum, j);
+ j++;
+ case 1:
+ process_packet(pkts_burst[j], dst_port + j);
+ GROUP_PORT_STEP(dlp, dst_port, lp, pnum, j);
+ j++;
+ }
+
+ /*
+ * Send packets out, through destination port.
+ * Consecutive packets with the same destination port
+ * are already grouped together.
+ * If destination port for the packet equals BAD_PORT,
+ * then free the packet without sending it out.
+ */
+ for (j = 0; j < nb_rx; j += k) {
+
+ int32_t m;
+ uint16_t pn;
+
+ pn = dst_port[j];
+ k = pnum[j];
+
+ if (likely(pn != BAD_PORT))
+ send_packetsx4(qconf, pn, pkts_burst + j, k);
+ else
+ for (m = j; m != j + k; m++)
+ rte_pktmbuf_free(pkts_burst[m]);
+
+ }
+}
+
+#endif /* _L3FWD_COMMON_H_ */
diff --git a/examples/l3fwd/main.c b/examples/l3fwd/main.c
new file mode 100644
index 00000000..bf6d8856
--- /dev/null
+++ b/examples/l3fwd/main.c
@@ -0,0 +1,1055 @@
+/*-
+ * 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 <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <sys/types.h>
+#include <string.h>
+#include <sys/queue.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <getopt.h>
+#include <signal.h>
+#include <stdbool.h>
+
+#include <rte_common.h>
+#include <rte_vect.h>
+#include <rte_byteorder.h>
+#include <rte_log.h>
+#include <rte_memory.h>
+#include <rte_memcpy.h>
+#include <rte_memzone.h>
+#include <rte_eal.h>
+#include <rte_per_lcore.h>
+#include <rte_launch.h>
+#include <rte_atomic.h>
+#include <rte_cycles.h>
+#include <rte_prefetch.h>
+#include <rte_lcore.h>
+#include <rte_per_lcore.h>
+#include <rte_branch_prediction.h>
+#include <rte_interrupts.h>
+#include <rte_pci.h>
+#include <rte_random.h>
+#include <rte_debug.h>
+#include <rte_ether.h>
+#include <rte_ethdev.h>
+#include <rte_ring.h>
+#include <rte_mempool.h>
+#include <rte_mbuf.h>
+#include <rte_ip.h>
+#include <rte_tcp.h>
+#include <rte_udp.h>
+#include <rte_string_fns.h>
+#include <rte_cpuflags.h>
+
+#include <cmdline_parse.h>
+#include <cmdline_parse_etheraddr.h>
+
+#include "l3fwd.h"
+
+/*
+ * Configurable number of RX/TX ring descriptors
+ */
+#define RTE_TEST_RX_DESC_DEFAULT 128
+#define RTE_TEST_TX_DESC_DEFAULT 512
+
+#define MAX_TX_QUEUE_PER_PORT RTE_MAX_ETHPORTS
+#define MAX_RX_QUEUE_PER_PORT 128
+
+#define MAX_LCORE_PARAMS 1024
+
+/* Static global variables used within this file. */
+static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
+static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
+
+/**< Ports set in promiscuous mode off by default. */
+static int promiscuous_on;
+
+/* Select Longest-Prefix or Exact match. */
+static int l3fwd_lpm_on;
+static int l3fwd_em_on;
+
+static int numa_on = 1; /**< NUMA is enabled by default. */
+static int parse_ptype; /**< Parse packet type using rx callback, and */
+ /**< disabled by default */
+
+/* Global variables. */
+
+volatile bool force_quit;
+
+/* ethernet addresses of ports */
+uint64_t dest_eth_addr[RTE_MAX_ETHPORTS];
+struct ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];
+
+xmm_t val_eth[RTE_MAX_ETHPORTS];
+
+/* mask of enabled ports */
+uint32_t enabled_port_mask;
+
+/* Used only in exact match mode. */
+int ipv6; /**< ipv6 is false by default. */
+uint32_t hash_entry_number = HASH_ENTRY_NUMBER_DEFAULT;
+
+struct lcore_conf lcore_conf[RTE_MAX_LCORE];
+
+struct lcore_params {
+ uint8_t port_id;
+ uint8_t queue_id;
+ uint8_t lcore_id;
+} __rte_cache_aligned;
+
+static struct lcore_params lcore_params_array[MAX_LCORE_PARAMS];
+static struct lcore_params lcore_params_array_default[] = {
+ {0, 0, 2},
+ {0, 1, 2},
+ {0, 2, 2},
+ {1, 0, 2},
+ {1, 1, 2},
+ {1, 2, 2},
+ {2, 0, 2},
+ {3, 0, 3},
+ {3, 1, 3},
+};
+
+static struct lcore_params * lcore_params = lcore_params_array_default;
+static uint16_t nb_lcore_params = sizeof(lcore_params_array_default) /
+ sizeof(lcore_params_array_default[0]);
+
+static struct rte_eth_conf port_conf = {
+ .rxmode = {
+ .mq_mode = ETH_MQ_RX_RSS,
+ .max_rx_pkt_len = ETHER_MAX_LEN,
+ .split_hdr_size = 0,
+ .header_split = 0, /**< Header Split disabled */
+ .hw_ip_checksum = 1, /**< IP checksum offload enabled */
+ .hw_vlan_filter = 0, /**< VLAN filtering disabled */
+ .jumbo_frame = 0, /**< Jumbo Frame Support disabled */
+ .hw_strip_crc = 0, /**< CRC stripped by hardware */
+ },
+ .rx_adv_conf = {
+ .rss_conf = {
+ .rss_key = NULL,
+ .rss_hf = ETH_RSS_IP,
+ },
+ },
+ .txmode = {
+ .mq_mode = ETH_MQ_TX_NONE,
+ },
+};
+
+static struct rte_mempool * pktmbuf_pool[NB_SOCKETS];
+
+struct l3fwd_lkp_mode {
+ void (*setup)(int);
+ int (*check_ptype)(int);
+ rte_rx_callback_fn cb_parse_ptype;
+ int (*main_loop)(void *);
+ void* (*get_ipv4_lookup_struct)(int);
+ void* (*get_ipv6_lookup_struct)(int);
+};
+
+static struct l3fwd_lkp_mode l3fwd_lkp;
+
+static struct l3fwd_lkp_mode l3fwd_em_lkp = {
+ .setup = setup_hash,
+ .check_ptype = em_check_ptype,
+ .cb_parse_ptype = em_cb_parse_ptype,
+ .main_loop = em_main_loop,
+ .get_ipv4_lookup_struct = em_get_ipv4_l3fwd_lookup_struct,
+ .get_ipv6_lookup_struct = em_get_ipv6_l3fwd_lookup_struct,
+};
+
+static struct l3fwd_lkp_mode l3fwd_lpm_lkp = {
+ .setup = setup_lpm,
+ .check_ptype = lpm_check_ptype,
+ .cb_parse_ptype = lpm_cb_parse_ptype,
+ .main_loop = lpm_main_loop,
+ .get_ipv4_lookup_struct = lpm_get_ipv4_l3fwd_lookup_struct,
+ .get_ipv6_lookup_struct = lpm_get_ipv6_l3fwd_lookup_struct,
+};
+
+/*
+ * Setup lookup methods for forwarding.
+ * Currently exact-match and longest-prefix-match
+ * are supported ones.
+ */
+static void
+setup_l3fwd_lookup_tables(void)
+{
+ /* Setup HASH lookup functions. */
+ if (l3fwd_em_on)
+ l3fwd_lkp = l3fwd_em_lkp;
+ /* Setup LPM lookup functions. */
+ else
+ l3fwd_lkp = l3fwd_lpm_lkp;
+}
+
+static int
+check_lcore_params(void)
+{
+ uint8_t queue, lcore;
+ uint16_t i;
+ int socketid;
+
+ for (i = 0; i < nb_lcore_params; ++i) {
+ queue = lcore_params[i].queue_id;
+ if (queue >= MAX_RX_QUEUE_PER_PORT) {
+ printf("invalid queue number: %hhu\n", queue);
+ return -1;
+ }
+ lcore = lcore_params[i].lcore_id;
+ if (!rte_lcore_is_enabled(lcore)) {
+ printf("error: lcore %hhu is not enabled in lcore mask\n", lcore);
+ return -1;
+ }
+ if ((socketid = rte_lcore_to_socket_id(lcore) != 0) &&
+ (numa_on == 0)) {
+ printf("warning: lcore %hhu is on socket %d with numa off \n",
+ lcore, socketid);
+ }
+ }
+ return 0;
+}
+
+static int
+check_port_config(const unsigned nb_ports)
+{
+ unsigned portid;
+ uint16_t i;
+
+ for (i = 0; i < nb_lcore_params; ++i) {
+ portid = lcore_params[i].port_id;
+ if ((enabled_port_mask & (1 << portid)) == 0) {
+ printf("port %u is not enabled in port mask\n", portid);
+ return -1;
+ }
+ if (portid >= nb_ports) {
+ printf("port %u is not present on the board\n", portid);
+ return -1;
+ }
+ }
+ return 0;
+}
+
+static uint8_t
+get_port_n_rx_queues(const uint8_t port)
+{
+ int queue = -1;
+ uint16_t i;
+
+ for (i = 0; i < nb_lcore_params; ++i) {
+ if (lcore_params[i].port_id == port) {
+ if (lcore_params[i].queue_id == queue+1)
+ queue = lcore_params[i].queue_id;
+ else
+ rte_exit(EXIT_FAILURE, "queue ids of the port %d must be"
+ " in sequence and must start with 0\n",
+ lcore_params[i].port_id);
+ }
+ }
+ return (uint8_t)(++queue);
+}
+
+static int
+init_lcore_rx_queues(void)
+{
+ uint16_t i, nb_rx_queue;
+ uint8_t lcore;
+
+ for (i = 0; i < nb_lcore_params; ++i) {
+ lcore = lcore_params[i].lcore_id;
+ nb_rx_queue = lcore_conf[lcore].n_rx_queue;
+ if (nb_rx_queue >= MAX_RX_QUEUE_PER_LCORE) {
+ printf("error: too many queues (%u) for lcore: %u\n",
+ (unsigned)nb_rx_queue + 1, (unsigned)lcore);
+ return -1;
+ } else {
+ lcore_conf[lcore].rx_queue_list[nb_rx_queue].port_id =
+ lcore_params[i].port_id;
+ lcore_conf[lcore].rx_queue_list[nb_rx_queue].queue_id =
+ lcore_params[i].queue_id;
+ lcore_conf[lcore].n_rx_queue++;
+ }
+ }
+ return 0;
+}
+
+/* display usage */
+static void
+print_usage(const char *prgname)
+{
+ printf ("%s [EAL options] -- -p PORTMASK -P"
+ " [--config (port,queue,lcore)[,(port,queue,lcore]]"
+ " [--enable-jumbo [--max-pkt-len PKTLEN]]\n"
+ " -p PORTMASK: hexadecimal bitmask of ports to configure\n"
+ " -P : enable promiscuous mode\n"
+ " -E : enable exact match\n"
+ " -L : enable longest prefix match\n"
+ " --config (port,queue,lcore): rx queues configuration\n"
+ " --eth-dest=X,MM:MM:MM:MM:MM:MM: optional, ethernet destination for port X\n"
+ " --no-numa: optional, disable numa awareness\n"
+ " --ipv6: optional, specify it if running ipv6 packets\n"
+ " --enable-jumbo: enable jumbo frame"
+ " which max packet len is PKTLEN in decimal (64-9600)\n"
+ " --hash-entry-num: specify the hash entry number in hexadecimal to be setup\n",
+ prgname);
+}
+
+static int
+parse_max_pkt_len(const char *pktlen)
+{
+ char *end = NULL;
+ unsigned long len;
+
+ /* parse decimal string */
+ len = strtoul(pktlen, &end, 10);
+ if ((pktlen[0] == '\0') || (end == NULL) || (*end != '\0'))
+ return -1;
+
+ if (len == 0)
+ return -1;
+
+ return len;
+}
+
+static int
+parse_portmask(const char *portmask)
+{
+ char *end = NULL;
+ unsigned long pm;
+
+ /* parse hexadecimal string */
+ pm = strtoul(portmask, &end, 16);
+ if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
+ return -1;
+
+ if (pm == 0)
+ return -1;
+
+ return pm;
+}
+
+static int
+parse_hash_entry_number(const char *hash_entry_num)
+{
+ char *end = NULL;
+ unsigned long hash_en;
+ /* parse hexadecimal string */
+ hash_en = strtoul(hash_entry_num, &end, 16);
+ if ((hash_entry_num[0] == '\0') || (end == NULL) || (*end != '\0'))
+ return -1;
+
+ if (hash_en == 0)
+ return -1;
+
+ return hash_en;
+}
+
+static int
+parse_config(const char *q_arg)
+{
+ char s[256];
+ const char *p, *p0 = q_arg;
+ char *end;
+ enum fieldnames {
+ FLD_PORT = 0,
+ FLD_QUEUE,
+ FLD_LCORE,
+ _NUM_FLD
+ };
+ unsigned long int_fld[_NUM_FLD];
+ char *str_fld[_NUM_FLD];
+ int i;
+ unsigned size;
+
+ nb_lcore_params = 0;
+
+ while ((p = strchr(p0,'(')) != NULL) {
+ ++p;
+ if((p0 = strchr(p,')')) == NULL)
+ return -1;
+
+ size = p0 - p;
+ if(size >= sizeof(s))
+ return -1;
+
+ snprintf(s, sizeof(s), "%.*s", size, p);
+ if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') != _NUM_FLD)
+ return -1;
+ for (i = 0; i < _NUM_FLD; i++){
+ errno = 0;
+ int_fld[i] = strtoul(str_fld[i], &end, 0);
+ if (errno != 0 || end == str_fld[i] || int_fld[i] > 255)
+ return -1;
+ }
+ if (nb_lcore_params >= MAX_LCORE_PARAMS) {
+ printf("exceeded max number of lcore params: %hu\n",
+ nb_lcore_params);
+ return -1;
+ }
+ lcore_params_array[nb_lcore_params].port_id =
+ (uint8_t)int_fld[FLD_PORT];
+ lcore_params_array[nb_lcore_params].queue_id =
+ (uint8_t)int_fld[FLD_QUEUE];
+ lcore_params_array[nb_lcore_params].lcore_id =
+ (uint8_t)int_fld[FLD_LCORE];
+ ++nb_lcore_params;
+ }
+ lcore_params = lcore_params_array;
+ return 0;
+}
+
+static void
+parse_eth_dest(const char *optarg)
+{
+ uint8_t portid;
+ char *port_end;
+ uint8_t c, *dest, peer_addr[6];
+
+ errno = 0;
+ portid = strtoul(optarg, &port_end, 10);
+ if (errno != 0 || port_end == optarg || *port_end++ != ',')
+ rte_exit(EXIT_FAILURE,
+ "Invalid eth-dest: %s", optarg);
+ if (portid >= RTE_MAX_ETHPORTS)
+ rte_exit(EXIT_FAILURE,
+ "eth-dest: port %d >= RTE_MAX_ETHPORTS(%d)\n",
+ portid, RTE_MAX_ETHPORTS);
+
+ if (cmdline_parse_etheraddr(NULL, port_end,
+ &peer_addr, sizeof(peer_addr)) < 0)
+ rte_exit(EXIT_FAILURE,
+ "Invalid ethernet address: %s\n",
+ port_end);
+ dest = (uint8_t *)&dest_eth_addr[portid];
+ for (c = 0; c < 6; c++)
+ dest[c] = peer_addr[c];
+ *(uint64_t *)(val_eth + portid) = dest_eth_addr[portid];
+}
+
+#define MAX_JUMBO_PKT_LEN 9600
+#define MEMPOOL_CACHE_SIZE 256
+
+#define CMD_LINE_OPT_CONFIG "config"
+#define CMD_LINE_OPT_ETH_DEST "eth-dest"
+#define CMD_LINE_OPT_NO_NUMA "no-numa"
+#define CMD_LINE_OPT_IPV6 "ipv6"
+#define CMD_LINE_OPT_ENABLE_JUMBO "enable-jumbo"
+#define CMD_LINE_OPT_HASH_ENTRY_NUM "hash-entry-num"
+#define CMD_LINE_OPT_PARSE_PTYPE "parse-ptype"
+
+/*
+ * This expression is used to calculate the number of mbufs needed
+ * depending on user input, taking into account memory for rx and
+ * tx hardware rings, cache per lcore and mtable per port per lcore.
+ * RTE_MAX is used to ensure that NB_MBUF never goes below a minimum
+ * value of 8192
+ */
+#define NB_MBUF RTE_MAX( \
+ (nb_ports*nb_rx_queue*RTE_TEST_RX_DESC_DEFAULT + \
+ nb_ports*nb_lcores*MAX_PKT_BURST + \
+ nb_ports*n_tx_queue*RTE_TEST_TX_DESC_DEFAULT + \
+ nb_lcores*MEMPOOL_CACHE_SIZE), \
+ (unsigned)8192)
+
+/* Parse the argument given in the command line of the application */
+static int
+parse_args(int argc, char **argv)
+{
+ int opt, ret;
+ char **argvopt;
+ int option_index;
+ char *prgname = argv[0];
+ static struct option lgopts[] = {
+ {CMD_LINE_OPT_CONFIG, 1, 0, 0},
+ {CMD_LINE_OPT_ETH_DEST, 1, 0, 0},
+ {CMD_LINE_OPT_NO_NUMA, 0, 0, 0},
+ {CMD_LINE_OPT_IPV6, 0, 0, 0},
+ {CMD_LINE_OPT_ENABLE_JUMBO, 0, 0, 0},
+ {CMD_LINE_OPT_HASH_ENTRY_NUM, 1, 0, 0},
+ {CMD_LINE_OPT_PARSE_PTYPE, 0, 0, 0},
+ {NULL, 0, 0, 0}
+ };
+
+ argvopt = argv;
+
+ /* Error or normal output strings. */
+ const char *str1 = "L3FWD: Invalid portmask";
+ const char *str2 = "L3FWD: Promiscuous mode selected";
+ const char *str3 = "L3FWD: Exact match selected";
+ const char *str4 = "L3FWD: Longest-prefix match selected";
+ const char *str5 = "L3FWD: Invalid config";
+ const char *str6 = "L3FWD: NUMA is disabled";
+ const char *str7 = "L3FWD: IPV6 is specified";
+ const char *str8 =
+ "L3FWD: Jumbo frame is enabled - disabling simple TX path";
+ const char *str9 = "L3FWD: Invalid packet length";
+ const char *str10 = "L3FWD: Set jumbo frame max packet len to ";
+ const char *str11 = "L3FWD: Invalid hash entry number";
+ const char *str12 =
+ "L3FWD: LPM and EM are mutually exclusive, select only one";
+ const char *str13 = "L3FWD: LPM or EM none selected, default LPM on";
+
+ while ((opt = getopt_long(argc, argvopt, "p:PLE",
+ lgopts, &option_index)) != EOF) {
+
+ switch (opt) {
+ /* portmask */
+ case 'p':
+ enabled_port_mask = parse_portmask(optarg);
+ if (enabled_port_mask == 0) {
+ printf("%s\n", str1);
+ print_usage(prgname);
+ return -1;
+ }
+ break;
+ case 'P':
+ printf("%s\n", str2);
+ promiscuous_on = 1;
+ break;
+
+ case 'E':
+ printf("%s\n", str3);
+ l3fwd_em_on = 1;
+ break;
+
+ case 'L':
+ printf("%s\n", str4);
+ l3fwd_lpm_on = 1;
+ break;
+
+ /* long options */
+ case 0:
+ if (!strncmp(lgopts[option_index].name,
+ CMD_LINE_OPT_CONFIG,
+ sizeof(CMD_LINE_OPT_CONFIG))) {
+
+ ret = parse_config(optarg);
+ if (ret) {
+ printf("%s\n", str5);
+ print_usage(prgname);
+ return -1;
+ }
+ }
+
+ if (!strncmp(lgopts[option_index].name,
+ CMD_LINE_OPT_ETH_DEST,
+ sizeof(CMD_LINE_OPT_ETH_DEST))) {
+ parse_eth_dest(optarg);
+ }
+
+ if (!strncmp(lgopts[option_index].name,
+ CMD_LINE_OPT_NO_NUMA,
+ sizeof(CMD_LINE_OPT_NO_NUMA))) {
+ printf("%s\n", str6);
+ numa_on = 0;
+ }
+
+ if (!strncmp(lgopts[option_index].name,
+ CMD_LINE_OPT_IPV6,
+ sizeof(CMD_LINE_OPT_IPV6))) {
+ printf("%sn", str7);
+ ipv6 = 1;
+ }
+
+ if (!strncmp(lgopts[option_index].name,
+ CMD_LINE_OPT_ENABLE_JUMBO,
+ sizeof(CMD_LINE_OPT_ENABLE_JUMBO))) {
+ struct option lenopts = {
+ "max-pkt-len", required_argument, 0, 0
+ };
+
+ printf("%s\n", str8);
+ port_conf.rxmode.jumbo_frame = 1;
+
+ /*
+ * if no max-pkt-len set, use the default
+ * value ETHER_MAX_LEN.
+ */
+ if (0 == getopt_long(argc, argvopt, "",
+ &lenopts, &option_index)) {
+ ret = parse_max_pkt_len(optarg);
+ if ((ret < 64) ||
+ (ret > MAX_JUMBO_PKT_LEN)) {
+ printf("%s\n", str9);
+ print_usage(prgname);
+ return -1;
+ }
+ port_conf.rxmode.max_rx_pkt_len = ret;
+ }
+ printf("%s %u\n", str10,
+ (unsigned int)port_conf.rxmode.max_rx_pkt_len);
+ }
+
+ if (!strncmp(lgopts[option_index].name,
+ CMD_LINE_OPT_HASH_ENTRY_NUM,
+ sizeof(CMD_LINE_OPT_HASH_ENTRY_NUM))) {
+
+ ret = parse_hash_entry_number(optarg);
+ if ((ret > 0) && (ret <= L3FWD_HASH_ENTRIES)) {
+ hash_entry_number = ret;
+ } else {
+ printf("%s\n", str11);
+ print_usage(prgname);
+ return -1;
+ }
+ }
+
+ if (!strncmp(lgopts[option_index].name,
+ CMD_LINE_OPT_PARSE_PTYPE,
+ sizeof(CMD_LINE_OPT_PARSE_PTYPE))) {
+ printf("soft parse-ptype is enabled\n");
+ parse_ptype = 1;
+ }
+
+ break;
+
+ default:
+ print_usage(prgname);
+ return -1;
+ }
+ }
+
+ /* If both LPM and EM are selected, return error. */
+ if (l3fwd_lpm_on && l3fwd_em_on) {
+ printf("%s\n", str12);
+ return -1;
+ }
+
+ /*
+ * Nothing is selected, pick longest-prefix match
+ * as default match.
+ */
+ if (!l3fwd_lpm_on && !l3fwd_em_on) {
+ l3fwd_lpm_on = 1;
+ printf("%s\n", str13);
+ }
+
+ /*
+ * ipv6 and hash flags are valid only for
+ * exact macth, reset them to default for
+ * longest-prefix match.
+ */
+ if (l3fwd_lpm_on) {
+ ipv6 = 0;
+ hash_entry_number = HASH_ENTRY_NUMBER_DEFAULT;
+ }
+
+ if (optind >= 0)
+ argv[optind-1] = prgname;
+
+ ret = optind-1;
+ optind = 0; /* reset getopt lib */
+ return ret;
+}
+
+static void
+print_ethaddr(const char *name, const struct ether_addr *eth_addr)
+{
+ char buf[ETHER_ADDR_FMT_SIZE];
+ ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr);
+ printf("%s%s", name, buf);
+}
+
+static int
+init_mem(unsigned nb_mbuf)
+{
+ struct lcore_conf *qconf;
+ int socketid;
+ unsigned lcore_id;
+ char s[64];
+
+ for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
+ if (rte_lcore_is_enabled(lcore_id) == 0)
+ continue;
+
+ if (numa_on)
+ socketid = rte_lcore_to_socket_id(lcore_id);
+ else
+ socketid = 0;
+
+ if (socketid >= NB_SOCKETS) {
+ rte_exit(EXIT_FAILURE,
+ "Socket %d of lcore %u is out of range %d\n",
+ socketid, lcore_id, NB_SOCKETS);
+ }
+
+ if (pktmbuf_pool[socketid] == NULL) {
+ snprintf(s, sizeof(s), "mbuf_pool_%d", socketid);
+ pktmbuf_pool[socketid] =
+ rte_pktmbuf_pool_create(s, nb_mbuf,
+ MEMPOOL_CACHE_SIZE, 0,
+ RTE_MBUF_DEFAULT_BUF_SIZE, socketid);
+ if (pktmbuf_pool[socketid] == NULL)
+ rte_exit(EXIT_FAILURE,
+ "Cannot init mbuf pool on socket %d\n",
+ socketid);
+ else
+ printf("Allocated mbuf pool on socket %d\n",
+ socketid);
+
+ /* Setup either LPM or EM(f.e Hash). */
+ l3fwd_lkp.setup(socketid);
+ }
+ qconf = &lcore_conf[lcore_id];
+ qconf->ipv4_lookup_struct =
+ l3fwd_lkp.get_ipv4_lookup_struct(socketid);
+ qconf->ipv6_lookup_struct =
+ l3fwd_lkp.get_ipv6_lookup_struct(socketid);
+ }
+ return 0;
+}
+
+/* Check the link status of all ports in up to 9s, and print them finally */
+static void
+check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
+{
+#define CHECK_INTERVAL 100 /* 100ms */
+#define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
+ uint8_t portid, count, all_ports_up, print_flag = 0;
+ struct rte_eth_link link;
+
+ printf("\nChecking link status");
+ fflush(stdout);
+ for (count = 0; count <= MAX_CHECK_TIME; count++) {
+ if (force_quit)
+ return;
+ all_ports_up = 1;
+ for (portid = 0; portid < port_num; portid++) {
+ if (force_quit)
+ return;
+ if ((port_mask & (1 << portid)) == 0)
+ continue;
+ memset(&link, 0, sizeof(link));
+ rte_eth_link_get_nowait(portid, &link);
+ /* print link status if flag set */
+ if (print_flag == 1) {
+ if (link.link_status)
+ printf("Port %d Link Up - speed %u "
+ "Mbps - %s\n", (uint8_t)portid,
+ (unsigned)link.link_speed,
+ (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
+ ("full-duplex") : ("half-duplex\n"));
+ else
+ printf("Port %d Link Down\n",
+ (uint8_t)portid);
+ continue;
+ }
+ /* clear all_ports_up flag if any link down */
+ if (link.link_status == ETH_LINK_DOWN) {
+ all_ports_up = 0;
+ break;
+ }
+ }
+ /* after finally printing all link status, get out */
+ if (print_flag == 1)
+ break;
+
+ if (all_ports_up == 0) {
+ printf(".");
+ fflush(stdout);
+ rte_delay_ms(CHECK_INTERVAL);
+ }
+
+ /* set the print_flag if all ports up or timeout */
+ if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
+ print_flag = 1;
+ printf("done\n");
+ }
+ }
+}
+
+static void
+signal_handler(int signum)
+{
+ if (signum == SIGINT || signum == SIGTERM) {
+ printf("\n\nSignal %d received, preparing to exit...\n",
+ signum);
+ force_quit = true;
+ }
+}
+
+static int
+prepare_ptype_parser(uint8_t portid, uint16_t queueid)
+{
+ if (parse_ptype) {
+ printf("Port %d: softly parse packet type info\n", portid);
+ if (rte_eth_add_rx_callback(portid, queueid,
+ l3fwd_lkp.cb_parse_ptype,
+ NULL))
+ return 1;
+
+ printf("Failed to add rx callback: port=%d\n", portid);
+ return 0;
+ }
+
+ if (l3fwd_lkp.check_ptype(portid))
+ return 1;
+
+ printf("port %d cannot parse packet type, please add --%s\n",
+ portid, CMD_LINE_OPT_PARSE_PTYPE);
+ return 0;
+}
+
+int
+main(int argc, char **argv)
+{
+ struct lcore_conf *qconf;
+ struct rte_eth_dev_info dev_info;
+ struct rte_eth_txconf *txconf;
+ int ret;
+ unsigned nb_ports;
+ uint16_t queueid;
+ unsigned lcore_id;
+ uint32_t n_tx_queue, nb_lcores;
+ uint8_t portid, nb_rx_queue, queue, socketid;
+
+ /* init EAL */
+ ret = rte_eal_init(argc, argv);
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
+ argc -= ret;
+ argv += ret;
+
+ force_quit = false;
+ signal(SIGINT, signal_handler);
+ signal(SIGTERM, signal_handler);
+
+ /* pre-init dst MACs for all ports to 02:00:00:00:00:xx */
+ for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
+ dest_eth_addr[portid] =
+ ETHER_LOCAL_ADMIN_ADDR + ((uint64_t)portid << 40);
+ *(uint64_t *)(val_eth + portid) = dest_eth_addr[portid];
+ }
+
+ /* parse application arguments (after the EAL ones) */
+ ret = parse_args(argc, argv);
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE, "Invalid L3FWD parameters\n");
+
+ if (check_lcore_params() < 0)
+ rte_exit(EXIT_FAILURE, "check_lcore_params failed\n");
+
+ ret = init_lcore_rx_queues();
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE, "init_lcore_rx_queues failed\n");
+
+ nb_ports = rte_eth_dev_count();
+ if (nb_ports > RTE_MAX_ETHPORTS)
+ nb_ports = RTE_MAX_ETHPORTS;
+
+ if (check_port_config(nb_ports) < 0)
+ rte_exit(EXIT_FAILURE, "check_port_config failed\n");
+
+ nb_lcores = rte_lcore_count();
+
+ /* Setup function pointers for lookup method. */
+ setup_l3fwd_lookup_tables();
+
+ /* initialize all ports */
+ for (portid = 0; portid < nb_ports; portid++) {
+ /* skip ports that are not enabled */
+ if ((enabled_port_mask & (1 << portid)) == 0) {
+ printf("\nSkipping disabled port %d\n", portid);
+ continue;
+ }
+
+ /* init port */
+ printf("Initializing port %d ... ", portid );
+ fflush(stdout);
+
+ nb_rx_queue = get_port_n_rx_queues(portid);
+ n_tx_queue = nb_lcores;
+ if (n_tx_queue > MAX_TX_QUEUE_PER_PORT)
+ n_tx_queue = MAX_TX_QUEUE_PER_PORT;
+ printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
+ nb_rx_queue, (unsigned)n_tx_queue );
+ ret = rte_eth_dev_configure(portid, nb_rx_queue,
+ (uint16_t)n_tx_queue, &port_conf);
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE,
+ "Cannot configure device: err=%d, port=%d\n",
+ ret, portid);
+
+ rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
+ print_ethaddr(" Address:", &ports_eth_addr[portid]);
+ printf(", ");
+ print_ethaddr("Destination:",
+ (const struct ether_addr *)&dest_eth_addr[portid]);
+ printf(", ");
+
+ /*
+ * prepare src MACs for each port.
+ */
+ ether_addr_copy(&ports_eth_addr[portid],
+ (struct ether_addr *)(val_eth + portid) + 1);
+
+ /* init memory */
+ ret = init_mem(NB_MBUF);
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE, "init_mem failed\n");
+
+ /* init one TX queue per couple (lcore,port) */
+ queueid = 0;
+ for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
+ if (rte_lcore_is_enabled(lcore_id) == 0)
+ continue;
+
+ if (numa_on)
+ socketid =
+ (uint8_t)rte_lcore_to_socket_id(lcore_id);
+ else
+ socketid = 0;
+
+ printf("txq=%u,%d,%d ", lcore_id, queueid, socketid);
+ fflush(stdout);
+
+ rte_eth_dev_info_get(portid, &dev_info);
+ txconf = &dev_info.default_txconf;
+ if (port_conf.rxmode.jumbo_frame)
+ txconf->txq_flags = 0;
+ ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
+ socketid, txconf);
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE,
+ "rte_eth_tx_queue_setup: err=%d, "
+ "port=%d\n", ret, portid);
+
+ qconf = &lcore_conf[lcore_id];
+ qconf->tx_queue_id[portid] = queueid;
+ queueid++;
+
+ qconf->tx_port_id[qconf->n_tx_port] = portid;
+ qconf->n_tx_port++;
+ }
+ printf("\n");
+ }
+
+ for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
+ if (rte_lcore_is_enabled(lcore_id) == 0)
+ continue;
+ qconf = &lcore_conf[lcore_id];
+ printf("\nInitializing rx queues on lcore %u ... ", lcore_id );
+ fflush(stdout);
+ /* init RX queues */
+ for(queue = 0; queue < qconf->n_rx_queue; ++queue) {
+ portid = qconf->rx_queue_list[queue].port_id;
+ queueid = qconf->rx_queue_list[queue].queue_id;
+
+ if (numa_on)
+ socketid =
+ (uint8_t)rte_lcore_to_socket_id(lcore_id);
+ else
+ socketid = 0;
+
+ printf("rxq=%d,%d,%d ", portid, queueid, socketid);
+ fflush(stdout);
+
+ ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
+ socketid,
+ NULL,
+ pktmbuf_pool[socketid]);
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE,
+ "rte_eth_rx_queue_setup: err=%d, port=%d\n",
+ ret, portid);
+ }
+ }
+
+ printf("\n");
+
+ /* start ports */
+ for (portid = 0; portid < nb_ports; portid++) {
+ if ((enabled_port_mask & (1 << portid)) == 0) {
+ continue;
+ }
+ /* Start device */
+ ret = rte_eth_dev_start(portid);
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE,
+ "rte_eth_dev_start: err=%d, port=%d\n",
+ ret, portid);
+
+ /*
+ * If enabled, put device in promiscuous mode.
+ * This allows IO forwarding mode to forward packets
+ * to itself through 2 cross-connected ports of the
+ * target machine.
+ */
+ if (promiscuous_on)
+ rte_eth_promiscuous_enable(portid);
+ }
+
+ printf("\n");
+
+ for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
+ if (rte_lcore_is_enabled(lcore_id) == 0)
+ continue;
+ qconf = &lcore_conf[lcore_id];
+ for (queue = 0; queue < qconf->n_rx_queue; ++queue) {
+ portid = qconf->rx_queue_list[queue].port_id;
+ queueid = qconf->rx_queue_list[queue].queue_id;
+ if (prepare_ptype_parser(portid, queueid) == 0)
+ rte_exit(EXIT_FAILURE, "ptype check fails\n");
+ }
+ }
+
+
+ check_all_ports_link_status((uint8_t)nb_ports, enabled_port_mask);
+
+ ret = 0;
+ /* launch per-lcore init on every lcore */
+ rte_eal_mp_remote_launch(l3fwd_lkp.main_loop, NULL, CALL_MASTER);
+ RTE_LCORE_FOREACH_SLAVE(lcore_id) {
+ if (rte_eal_wait_lcore(lcore_id) < 0) {
+ ret = -1;
+ break;
+ }
+ }
+
+ /* stop ports */
+ for (portid = 0; portid < nb_ports; portid++) {
+ if ((enabled_port_mask & (1 << portid)) == 0)
+ continue;
+ printf("Closing port %d...", portid);
+ rte_eth_dev_stop(portid);
+ rte_eth_dev_close(portid);
+ printf(" Done\n");
+ }
+ printf("Bye...\n");
+
+ return ret;
+}