[dpdk-dev] [PATCH v1] Modify and modularize l3fwd code
Ravi Kerur
rkerur at gmail.com
Tue Dec 22 00:12:53 CET 2015
v1:
> Rebase to latest code base for DPDK team review.
Intel team's (Konstantin, Bruce and Declan) review comments
v4<-v3:
> Fix code review comments from Konstantin
> Move buffer optimization code into l3fwd_lpm_sse.h
and l3fwd_em_sse.h for LPM and EM respectively
> Add compile time __SSE4_1__ for header file inclusion
> Tested with CONFIG_RTE_MACHINE=default for non
__SSE4_1__ compilation and build
> Compiled for GCC 4.8.4 and 5.1 on Ubuntu 14.04
v3<-v2:
> Fix code review comments from Bruce
> Fix multiple static definitions
> Move local #defines to C files, common #defines
to H file.
> Rename ipv4_l3fwd_route to ipv4_l3fwd_lpm and ipv4_l3fwd_em
> Rename ipv6_l3fwd_route to ipv6_l3fwd_lpm and ipv6_l3fwd_lpm
> Pass additional parameter to send_single_packet
> Compiled for GCC 4.8.4 and 5.1 on Ubuntu 14.04
v2<-v1:
> Fix errors in GCC 5.1
> Restore "static inline" functions, rearrange
functions to take "static inline" into account
> Duplicate main_loop for LPM and EM
v1:
> Split main.c into following 3 files
> main.c, (parsing, buffer alloc, and other utilities)
> l3fwd_lpm.c, (Longest Prefix Match functions)
> l3fwd_em.c, (Exact Match f.e. Hash functions)
> l3fwd.h, (Common defines and prototypes)
> Select LPM or EM based on run time selection f.e.
> l3fwd -c 0x1 -n 1 -- -p 0x1 -E ... (Exact Match)
> l3fwd -c 0x1 -n 1 -- -p 0x1 -L ... (LPM)
> Options "E" and "L" are mutualy-exclusive.
> Use function pointers during initialiation of relevant
data structures.
> Remove unwanted #ifdefs in the code with exception to
> DO_RFC_1812_CHECKS
> RTE_MACHINE_CPUFLAG_SSE4_2
> Compiled for
> i686-native-linuxapp-gcc
> x86_64-native-linuxapp-gcc
> x86_x32-native-linuxapp-gcc
> x86_64-native-bsdapp-gcc
> Tested on
> Ubuntu 14.04 (GCC 4.8.4)
> FreeBSD 10.0 (GCC 4.8)
> I217 and I218 respectively.
Signed-off-by: Ravi Kerur <rkerur at gmail.com>
---
examples/l3fwd/Makefile | 9 +-
examples/l3fwd/l3fwd.h | 209 ++++
examples/l3fwd/l3fwd_em.c | 773 ++++++++++++++
examples/l3fwd/l3fwd_em_sse.h | 479 +++++++++
examples/l3fwd/l3fwd_lpm.c | 414 ++++++++
examples/l3fwd/l3fwd_lpm_sse.h | 610 +++++++++++
examples/l3fwd/main.c | 2202 ++++------------------------------------
7 files changed, 2694 insertions(+), 2002 deletions(-)
create mode 100644 examples/l3fwd/l3fwd.h
create mode 100644 examples/l3fwd/l3fwd_em.c
create mode 100644 examples/l3fwd/l3fwd_em_sse.h
create mode 100644 examples/l3fwd/l3fwd_lpm.c
create mode 100644 examples/l3fwd/l3fwd_lpm_sse.h
diff --git a/examples/l3fwd/Makefile b/examples/l3fwd/Makefile
index 68de8fc..94a2282 100644
--- a/examples/l3fwd/Makefile
+++ b/examples/l3fwd/Makefile
@@ -42,15 +42,10 @@ include $(RTE_SDK)/mk/rte.vars.mk
APP = l3fwd
# all source are stored in SRCS-y
-SRCS-y := main.c
+SRCS-y := main.c l3fwd_lpm.c l3fwd_em.c
+CFLAGS += -I$(SRCDIR)
CFLAGS += -O3 $(USER_FLAGS)
CFLAGS += $(WERROR_FLAGS)
-# workaround for a gcc bug with noreturn attribute
-# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12603
-ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
-CFLAGS_main.o += -Wno-return-type
-endif
-
include $(RTE_SDK)/mk/rte.extapp.mk
diff --git a/examples/l3fwd/l3fwd.h b/examples/l3fwd/l3fwd.h
new file mode 100644
index 0000000..50e40fe
--- /dev/null
+++ b/examples/l3fwd/l3fwd.h
@@ -0,0 +1,209 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __L3_FWD_H__
+#define __L3_FWD_H__
+
+#define DO_RFC_1812_CHECKS
+
+#define RTE_LOGTYPE_L3FWD RTE_LOGTYPE_USER1
+
+#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
+
+/* 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 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;
+
+/* 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 __m128i 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_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 0000000..e8f4fee
--- /dev/null
+++ b/examples/l3fwd/l3fwd_em.c
@@ -0,0 +1,773 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#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 <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;
+ };
+ __m128i 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;
+ };
+ __m128i 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 __m128i mask0;
+static __m128i mask1;
+static __m128i mask2;
+
+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);
+ __m128i data = _mm_loadu_si128((__m128i *)(ipv4_hdr));
+
+ /*
+ * Get 5 tuple: dst port, src port, dst IP address,
+ * src IP address and protocol.
+ */
+ key.xmm = _mm_and_si128(data, mask0);
+
+ /* 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);
+ __m128i data0 =
+ _mm_loadu_si128((__m128i *)(ipv6_hdr));
+ __m128i data1 =
+ _mm_loadu_si128((__m128i *)(((uint8_t *)ipv6_hdr)+
+ sizeof(__m128i)));
+ __m128i data2 =
+ _mm_loadu_si128((__m128i *)(((uint8_t *)ipv6_hdr)+
+ sizeof(__m128i)+sizeof(__m128i)));
+
+ /* Get part of 5 tuple: src IP address lower 96 bits and protocol */
+ key.xmm[0] = _mm_and_si128(data0, mask1);
+
+ /*
+ * Get part of 5 tuple: dst IP address lower 96 bits
+ * and src IP address higher 32 bits.
+ */
+ key.xmm[1] = data1;
+
+ /*
+ * Get part of 5 tuple: dst port and src port
+ * and dst IP address higher 32 bits.
+ */
+ key.xmm[2] = _mm_and_si128(data2, mask2);
+
+ /* 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]);
+}
+
+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;
+
+ 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 = 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 *)ð_hdr->d_addr = dest_eth_addr[dst_port];
+
+ /* src addr */
+ ether_addr_copy(&ports_eth_addr[dst_port], ð_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 = 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 *)ð_hdr->d_addr = dest_eth_addr[dst_port];
+
+ /* src addr */
+ ether_addr_copy(&ports_eth_addr[dst_port], ð_hdr->s_addr);
+
+ send_single_packet(qconf, m, dst_port);
+ } else {
+ /* Free the mbuf that contains non-IPV4/IPV6 packet */
+ rte_pktmbuf_free(m);
+ }
+}
+
+/*
+ * Include header file if SSE4_1 is enabled for
+ * buffer optimization i.e. ENABLE_MULTI_BUFFER_OPTIMIZE=1.
+ */
+#if defined(__SSE4_1__)
+#include "l3fwd_em_sse.h"
+#endif
+
+/*
+ * 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);
+}
+
+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 = _mm_set_epi32(ALL_32_BITS, ALL_32_BITS,
+ ALL_32_BITS, BIT_8_TO_15);
+
+ 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", 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 = _mm_set_epi32(ALL_32_BITS, ALL_32_BITS,
+ ALL_32_BITS, BIT_16_TO_23);
+
+ mask2 = _mm_set_epi32(0, 0, ALL_32_BITS, ALL_32_BITS);
+
+ 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", 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 = _mm_set_epi32(ALL_32_BITS, ALL_32_BITS,
+ ALL_32_BITS, BIT_8_TO_15);
+
+ 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 = _mm_set_epi32(ALL_32_BITS, ALL_32_BITS,
+ ALL_32_BITS, BIT_16_TO_23);
+ mask2 = _mm_set_epi32(0, 0, ALL_32_BITS, ALL_32_BITS);
+
+ 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);
+}
+
+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 (1) {
+
+ cur_tsc = rte_rdtsc();
+
+ /*
+ * TX burst queue drain
+ */
+ diff_tsc = cur_tsc - prev_tsc;
+ if (unlikely(diff_tsc > drain_tsc)) {
+
+ /*
+ * This could be optimized (use queueid instead of
+ * portid), but it is not called so often
+ */
+ for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
+ 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;
+
+ /*
+ * For SSE4_1 use ENABLE_MULTI_BUFFER_OPTIMIZE=1
+ * code.
+ */
+#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__ */
+ }
+ }
+}
+
+/*
+ * 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_sse.h b/examples/l3fwd/l3fwd_em_sse.h
new file mode 100644
index 0000000..5287671
--- /dev/null
+++ b/examples/l3fwd/l3fwd_em_sse.h
@@ -0,0 +1,479 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __L3FWD_EM_SSE_H__
+#define __L3FWD_EM_SSE_H__
+
+#define MASK_ALL_PKTS 0xff
+#define EXCLUDE_1ST_PKT 0xfe
+#define EXCLUDE_2ND_PKT 0xfd
+#define EXCLUDE_3RD_PKT 0xfb
+#define EXCLUDE_4TH_PKT 0xf7
+#define EXCLUDE_5TH_PKT 0xef
+#define EXCLUDE_6TH_PKT 0xdf
+#define EXCLUDE_7TH_PKT 0xbf
+#define EXCLUDE_8TH_PKT 0x7f
+
+static inline void
+simple_ipv4_fwd_8pkts(struct rte_mbuf *m[8], uint8_t portid,
+ struct lcore_conf *qconf)
+{
+ struct ether_hdr *eth_hdr[8];
+ struct ipv4_hdr *ipv4_hdr[8];
+ uint8_t dst_port[8];
+ int32_t ret[8];
+ union ipv4_5tuple_host key[8];
+ __m128i data[8];
+
+ eth_hdr[0] = rte_pktmbuf_mtod(m[0], struct ether_hdr *);
+ eth_hdr[1] = rte_pktmbuf_mtod(m[1], struct ether_hdr *);
+ eth_hdr[2] = rte_pktmbuf_mtod(m[2], struct ether_hdr *);
+ eth_hdr[3] = rte_pktmbuf_mtod(m[3], struct ether_hdr *);
+ eth_hdr[4] = rte_pktmbuf_mtod(m[4], struct ether_hdr *);
+ eth_hdr[5] = rte_pktmbuf_mtod(m[5], struct ether_hdr *);
+ eth_hdr[6] = rte_pktmbuf_mtod(m[6], struct ether_hdr *);
+ eth_hdr[7] = rte_pktmbuf_mtod(m[7], struct ether_hdr *);
+
+ /* Handle IPv4 headers.*/
+ ipv4_hdr[0] = rte_pktmbuf_mtod_offset(m[0], struct ipv4_hdr *,
+ sizeof(struct ether_hdr));
+ ipv4_hdr[1] = rte_pktmbuf_mtod_offset(m[1], struct ipv4_hdr *,
+ sizeof(struct ether_hdr));
+ ipv4_hdr[2] = rte_pktmbuf_mtod_offset(m[2], struct ipv4_hdr *,
+ sizeof(struct ether_hdr));
+ ipv4_hdr[3] = rte_pktmbuf_mtod_offset(m[3], struct ipv4_hdr *,
+ sizeof(struct ether_hdr));
+ ipv4_hdr[4] = rte_pktmbuf_mtod_offset(m[4], struct ipv4_hdr *,
+ sizeof(struct ether_hdr));
+ ipv4_hdr[5] = rte_pktmbuf_mtod_offset(m[5], struct ipv4_hdr *,
+ sizeof(struct ether_hdr));
+ ipv4_hdr[6] = rte_pktmbuf_mtod_offset(m[6], struct ipv4_hdr *,
+ sizeof(struct ether_hdr));
+ ipv4_hdr[7] = rte_pktmbuf_mtod_offset(m[7], struct ipv4_hdr *,
+ sizeof(struct ether_hdr));
+
+#ifdef DO_RFC_1812_CHECKS
+ /* Check to make sure the packet is valid (RFC1812) */
+ uint8_t valid_mask = MASK_ALL_PKTS;
+
+ if (is_valid_ipv4_pkt(ipv4_hdr[0], m[0]->pkt_len) < 0) {
+ rte_pktmbuf_free(m[0]);
+ valid_mask &= EXCLUDE_1ST_PKT;
+ }
+ if (is_valid_ipv4_pkt(ipv4_hdr[1], m[1]->pkt_len) < 0) {
+ rte_pktmbuf_free(m[1]);
+ valid_mask &= EXCLUDE_2ND_PKT;
+ }
+ if (is_valid_ipv4_pkt(ipv4_hdr[2], m[2]->pkt_len) < 0) {
+ rte_pktmbuf_free(m[2]);
+ valid_mask &= EXCLUDE_3RD_PKT;
+ }
+ if (is_valid_ipv4_pkt(ipv4_hdr[3], m[3]->pkt_len) < 0) {
+ rte_pktmbuf_free(m[3]);
+ valid_mask &= EXCLUDE_4TH_PKT;
+ }
+ if (is_valid_ipv4_pkt(ipv4_hdr[4], m[4]->pkt_len) < 0) {
+ rte_pktmbuf_free(m[4]);
+ valid_mask &= EXCLUDE_5TH_PKT;
+ }
+ if (is_valid_ipv4_pkt(ipv4_hdr[5], m[5]->pkt_len) < 0) {
+ rte_pktmbuf_free(m[5]);
+ valid_mask &= EXCLUDE_6TH_PKT;
+ }
+ if (is_valid_ipv4_pkt(ipv4_hdr[6], m[6]->pkt_len) < 0) {
+ rte_pktmbuf_free(m[6]);
+ valid_mask &= EXCLUDE_7TH_PKT;
+ }
+ if (is_valid_ipv4_pkt(ipv4_hdr[7], m[7]->pkt_len) < 0) {
+ rte_pktmbuf_free(m[7]);
+ valid_mask &= EXCLUDE_8TH_PKT;
+ }
+ if (unlikely(valid_mask != MASK_ALL_PKTS)) {
+ if (valid_mask == 0) {
+ return;
+ } else {
+ uint8_t i = 0;
+
+ for (i = 0; i < 8; i++) {
+ if ((0x1 << i) & valid_mask) {
+ l3fwd_em_simple_forward(m[i],
+ portid, qconf);
+ }
+ }
+ return;
+ }
+ }
+#endif /* End of #ifdef DO_RFC_1812_CHECKS */
+
+ 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);
+ key[1].xmm = _mm_and_si128(data[1], mask0);
+ key[2].xmm = _mm_and_si128(data[2], mask0);
+ key[3].xmm = _mm_and_si128(data[3], mask0);
+ key[4].xmm = _mm_and_si128(data[4], mask0);
+ key[5].xmm = _mm_and_si128(data[5], mask0);
+ key[6].xmm = _mm_and_si128(data[6], mask0);
+ key[7].xmm = _mm_and_si128(data[7], mask0);
+
+ 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;
+
+#ifdef DO_RFC_1812_CHECKS
+ /* Update time to live and header checksum */
+ --(ipv4_hdr[0]->time_to_live);
+ --(ipv4_hdr[1]->time_to_live);
+ --(ipv4_hdr[2]->time_to_live);
+ --(ipv4_hdr[3]->time_to_live);
+ ++(ipv4_hdr[0]->hdr_checksum);
+ ++(ipv4_hdr[1]->hdr_checksum);
+ ++(ipv4_hdr[2]->hdr_checksum);
+ ++(ipv4_hdr[3]->hdr_checksum);
+ --(ipv4_hdr[4]->time_to_live);
+ --(ipv4_hdr[5]->time_to_live);
+ --(ipv4_hdr[6]->time_to_live);
+ --(ipv4_hdr[7]->time_to_live);
+ ++(ipv4_hdr[4]->hdr_checksum);
+ ++(ipv4_hdr[5]->hdr_checksum);
+ ++(ipv4_hdr[6]->hdr_checksum);
+ ++(ipv4_hdr[7]->hdr_checksum);
+#endif
+
+ /* dst addr */
+ *(uint64_t *)ð_hdr[0]->d_addr = dest_eth_addr[dst_port[0]];
+ *(uint64_t *)ð_hdr[1]->d_addr = dest_eth_addr[dst_port[1]];
+ *(uint64_t *)ð_hdr[2]->d_addr = dest_eth_addr[dst_port[2]];
+ *(uint64_t *)ð_hdr[3]->d_addr = dest_eth_addr[dst_port[3]];
+ *(uint64_t *)ð_hdr[4]->d_addr = dest_eth_addr[dst_port[4]];
+ *(uint64_t *)ð_hdr[5]->d_addr = dest_eth_addr[dst_port[5]];
+ *(uint64_t *)ð_hdr[6]->d_addr = dest_eth_addr[dst_port[6]];
+ *(uint64_t *)ð_hdr[7]->d_addr = dest_eth_addr[dst_port[7]];
+
+ /* src addr */
+ ether_addr_copy(&ports_eth_addr[dst_port[0]], ð_hdr[0]->s_addr);
+ ether_addr_copy(&ports_eth_addr[dst_port[1]], ð_hdr[1]->s_addr);
+ ether_addr_copy(&ports_eth_addr[dst_port[2]], ð_hdr[2]->s_addr);
+ ether_addr_copy(&ports_eth_addr[dst_port[3]], ð_hdr[3]->s_addr);
+ ether_addr_copy(&ports_eth_addr[dst_port[4]], ð_hdr[4]->s_addr);
+ ether_addr_copy(&ports_eth_addr[dst_port[5]], ð_hdr[5]->s_addr);
+ ether_addr_copy(&ports_eth_addr[dst_port[6]], ð_hdr[6]->s_addr);
+ ether_addr_copy(&ports_eth_addr[dst_port[7]], ð_hdr[7]->s_addr);
+
+ send_single_packet(qconf, m[0], (uint8_t)dst_port[0]);
+ send_single_packet(qconf, m[1], (uint8_t)dst_port[1]);
+ send_single_packet(qconf, m[2], (uint8_t)dst_port[2]);
+ send_single_packet(qconf, m[3], (uint8_t)dst_port[3]);
+ send_single_packet(qconf, m[4], (uint8_t)dst_port[4]);
+ send_single_packet(qconf, m[5], (uint8_t)dst_port[5]);
+ send_single_packet(qconf, m[6], (uint8_t)dst_port[6]);
+ send_single_packet(qconf, m[7], (uint8_t)dst_port[7]);
+}
+
+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 void
+simple_ipv6_fwd_8pkts(struct rte_mbuf *m[8], uint8_t portid,
+ struct lcore_conf *qconf)
+{
+ struct ether_hdr *eth_hdr[8];
+ __attribute__((unused)) struct ipv6_hdr *ipv6_hdr[8];
+ uint8_t dst_port[8];
+ int32_t ret[8];
+ union ipv6_5tuple_host key[8];
+
+ eth_hdr[0] = rte_pktmbuf_mtod(m[0], struct ether_hdr *);
+ eth_hdr[1] = rte_pktmbuf_mtod(m[1], struct ether_hdr *);
+ eth_hdr[2] = rte_pktmbuf_mtod(m[2], struct ether_hdr *);
+ eth_hdr[3] = rte_pktmbuf_mtod(m[3], struct ether_hdr *);
+ eth_hdr[4] = rte_pktmbuf_mtod(m[4], struct ether_hdr *);
+ eth_hdr[5] = rte_pktmbuf_mtod(m[5], struct ether_hdr *);
+ eth_hdr[6] = rte_pktmbuf_mtod(m[6], struct ether_hdr *);
+ eth_hdr[7] = rte_pktmbuf_mtod(m[7], struct ether_hdr *);
+
+ /* Handle IPv6 headers.*/
+ ipv6_hdr[0] = rte_pktmbuf_mtod_offset(m[0], struct ipv6_hdr *,
+ sizeof(struct ether_hdr));
+ ipv6_hdr[1] = rte_pktmbuf_mtod_offset(m[1], struct ipv6_hdr *,
+ sizeof(struct ether_hdr));
+ ipv6_hdr[2] = rte_pktmbuf_mtod_offset(m[2], struct ipv6_hdr *,
+ sizeof(struct ether_hdr));
+ ipv6_hdr[3] = rte_pktmbuf_mtod_offset(m[3], struct ipv6_hdr *,
+ sizeof(struct ether_hdr));
+ ipv6_hdr[4] = rte_pktmbuf_mtod_offset(m[4], struct ipv6_hdr *,
+ sizeof(struct ether_hdr));
+ ipv6_hdr[5] = rte_pktmbuf_mtod_offset(m[5], struct ipv6_hdr *,
+ sizeof(struct ether_hdr));
+ ipv6_hdr[6] = rte_pktmbuf_mtod_offset(m[6], struct ipv6_hdr *,
+ sizeof(struct ether_hdr));
+ ipv6_hdr[7] = rte_pktmbuf_mtod_offset(m[7], struct ipv6_hdr *,
+ sizeof(struct ether_hdr));
+
+ get_ipv6_5tuple(m[0], mask1, mask2, &key[0]);
+ get_ipv6_5tuple(m[1], mask1, mask2, &key[1]);
+ get_ipv6_5tuple(m[2], mask1, mask2, &key[2]);
+ get_ipv6_5tuple(m[3], mask1, mask2, &key[3]);
+ get_ipv6_5tuple(m[4], mask1, mask2, &key[4]);
+ get_ipv6_5tuple(m[5], mask1, mask2, &key[5]);
+ get_ipv6_5tuple(m[6], mask1, mask2, &key[6]);
+ get_ipv6_5tuple(m[7], mask1, mask2, &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;
+
+ /* dst addr */
+ *(uint64_t *)ð_hdr[0]->d_addr = dest_eth_addr[dst_port[0]];
+ *(uint64_t *)ð_hdr[1]->d_addr = dest_eth_addr[dst_port[1]];
+ *(uint64_t *)ð_hdr[2]->d_addr = dest_eth_addr[dst_port[2]];
+ *(uint64_t *)ð_hdr[3]->d_addr = dest_eth_addr[dst_port[3]];
+ *(uint64_t *)ð_hdr[4]->d_addr = dest_eth_addr[dst_port[4]];
+ *(uint64_t *)ð_hdr[5]->d_addr = dest_eth_addr[dst_port[5]];
+ *(uint64_t *)ð_hdr[6]->d_addr = dest_eth_addr[dst_port[6]];
+ *(uint64_t *)ð_hdr[7]->d_addr = dest_eth_addr[dst_port[7]];
+
+ /* src addr */
+ ether_addr_copy(&ports_eth_addr[dst_port[0]], ð_hdr[0]->s_addr);
+ ether_addr_copy(&ports_eth_addr[dst_port[1]], ð_hdr[1]->s_addr);
+ ether_addr_copy(&ports_eth_addr[dst_port[2]], ð_hdr[2]->s_addr);
+ ether_addr_copy(&ports_eth_addr[dst_port[3]], ð_hdr[3]->s_addr);
+ ether_addr_copy(&ports_eth_addr[dst_port[4]], ð_hdr[4]->s_addr);
+ ether_addr_copy(&ports_eth_addr[dst_port[5]], ð_hdr[5]->s_addr);
+ ether_addr_copy(&ports_eth_addr[dst_port[6]], ð_hdr[6]->s_addr);
+ ether_addr_copy(&ports_eth_addr[dst_port[7]], ð_hdr[7]->s_addr);
+
+ send_single_packet(qconf, m[0], (uint8_t)dst_port[0]);
+ send_single_packet(qconf, m[1], (uint8_t)dst_port[1]);
+ send_single_packet(qconf, m[2], (uint8_t)dst_port[2]);
+ send_single_packet(qconf, m[3], (uint8_t)dst_port[3]);
+ send_single_packet(qconf, m[4], (uint8_t)dst_port[4]);
+ send_single_packet(qconf, m[5], (uint8_t)dst_port[5]);
+ send_single_packet(qconf, m[6], (uint8_t)dst_port[6]);
+ send_single_packet(qconf, m[7], (uint8_t)dst_port[7]);
+}
+
+/*
+ * 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;
+
+ /*
+ * 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;
+
+ if (pkt_type & RTE_PTYPE_L3_IPV4) {
+ simple_ipv4_fwd_8pkts(
+ &pkts_burst[j], portid, qconf);
+ } else if (pkt_type & RTE_PTYPE_L3_IPV6) {
+ simple_ipv6_fwd_8pkts(&pkts_burst[j],
+ portid, qconf);
+ } else {
+ l3fwd_em_simple_forward(pkts_burst[j], portid, qconf);
+ l3fwd_em_simple_forward(pkts_burst[j+1], portid, qconf);
+ l3fwd_em_simple_forward(pkts_burst[j+2], portid, qconf);
+ l3fwd_em_simple_forward(pkts_burst[j+3], portid, qconf);
+ l3fwd_em_simple_forward(pkts_burst[j+4], portid, qconf);
+ l3fwd_em_simple_forward(pkts_burst[j+5], portid, qconf);
+ l3fwd_em_simple_forward(pkts_burst[j+6], portid, qconf);
+ l3fwd_em_simple_forward(pkts_burst[j+7], portid, qconf);
+ }
+ }
+ for (; j < nb_rx ; j++)
+ l3fwd_em_simple_forward(pkts_burst[j], portid, qconf);
+}
+
+#endif /* __L3FWD_EM_SSE_H__ */
diff --git a/examples/l3fwd/l3fwd_lpm.c b/examples/l3fwd/l3fwd_lpm.c
new file mode 100644
index 0000000..feffc21
--- /dev/null
+++ b/examples/l3fwd/l3fwd_lpm.c
@@ -0,0 +1,414 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#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 <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 IPV6_L3FWD_LPM_MAX_RULES 1024
+#define IPV6_L3FWD_LPM_NUMBER_TBL8S (1 << 16)
+
+/* 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
+
+struct rte_lpm *ipv4_l3fwd_lpm_lookup_struct[NB_SOCKETS];
+struct rte_lpm6 *ipv6_l3fwd_lpm_lookup_struct[NB_SOCKETS];
+
+static inline uint8_t
+lpm_get_ipv4_dst_port(void *ipv4_hdr, uint8_t portid, void *lookup_struct)
+{
+ uint8_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 *)ð_hdr->d_addr = dest_eth_addr[dst_port];
+
+ /* src addr */
+ ether_addr_copy(&ports_eth_addr[dst_port], ð_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 *)ð_hdr->d_addr = dest_eth_addr[dst_port];
+
+ /* src addr */
+ ether_addr_copy(&ports_eth_addr[dst_port], ð_hdr->s_addr);
+
+ send_single_packet(qconf, m, dst_port);
+ } else {
+ /* Free the mbuf that contains non-IPV4/IPV6 packet */
+ rte_pktmbuf_free(m);
+ }
+}
+
+/*
+ * Include header file if SSE4_1 is enabled for
+ * buffer optimization i.e. ENABLE_MULTI_BUFFER_OPTIMIZE=1.
+ */
+#if defined(__SSE4_1__)
+#include "l3fwd_lpm_sse.h"
+#endif
+
+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);
+}
+
+/* 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 (1) {
+
+ cur_tsc = rte_rdtsc();
+
+ /*
+ * TX burst queue drain
+ */
+ diff_tsc = cur_tsc - prev_tsc;
+ if (unlikely(diff_tsc > drain_tsc)) {
+
+ /*
+ * This could be optimized (use queueid instead of
+ * portid), but it is not called so often
+ */
+ for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
+ 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;
+
+ /*
+ * For SSE4_1 use ENABLE_MULTI_BUFFER_OPTIMIZE=1
+ * code.
+ */
+#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__ */
+ }
+ }
+}
+
+void
+setup_lpm(const int socketid)
+{
+ struct rte_lpm6_config config;
+ unsigned i;
+ int ret;
+ char s[64];
+
+ /* create the LPM table */
+ snprintf(s, sizeof(s), "IPV4_L3FWD_LPM_%d", socketid);
+ ipv4_l3fwd_lpm_lookup_struct[socketid] = rte_lpm_create(s, socketid,
+ IPV4_L3FWD_LPM_MAX_RULES, 0);
+ 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);
+ }
+}
+
+/* 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_sse.h b/examples/l3fwd/l3fwd_lpm_sse.h
new file mode 100644
index 0000000..9e9b797
--- /dev/null
+++ b/examples/l3fwd/l3fwd_lpm_sse.h
@@ -0,0 +1,610 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __L3FWD_LPM_SSE_H__
+#define __L3FWD_LPM_SSE_H__
+
+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;
+}
+
+#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) do { } while (0)
+#endif /* DO_RFC_1812_CHECKS */
+
+static inline __attribute__((always_inline)) uint16_t
+get_dst_port(const struct lcore_conf *qconf, struct rte_mbuf *pkt,
+ uint32_t dst_ipv4, uint8_t portid)
+{
+ uint8_t next_hop;
+ struct ipv6_hdr *ipv6_hdr;
+ struct ether_hdr *eth_hdr;
+
+ if (RTE_ETH_IS_IPV4_HDR(pkt->packet_type)) {
+ if (rte_lpm_lookup(qconf->ipv4_lookup_struct, dst_ipv4,
+ &next_hop) != 0)
+ next_hop = 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);
+ if (rte_lpm6_lookup(qconf->ipv6_lookup_struct,
+ ipv6_hdr->dst_addr, &next_hop) != 0)
+ next_hop = portid;
+ } else {
+ next_hop = portid;
+ }
+
+ return next_hop;
+}
+
+static inline void
+process_packet(struct lcore_conf *qconf, struct rte_mbuf *pkt,
+ uint16_t *dst_port, uint8_t portid)
+{
+ struct ether_hdr *eth_hdr;
+ struct ipv4_hdr *ipv4_hdr;
+ uint32_t dst_ipv4;
+ uint16_t dp;
+ __m128i te, ve;
+
+ eth_hdr = rte_pktmbuf_mtod(pkt, struct ether_hdr *);
+ ipv4_hdr = (struct ipv4_hdr *)(eth_hdr + 1);
+
+ dst_ipv4 = ipv4_hdr->dst_addr;
+ dst_ipv4 = rte_be_to_cpu_32(dst_ipv4);
+ dp = get_dst_port(qconf, pkt, dst_ipv4, portid);
+
+ te = _mm_loadu_si128((__m128i *)eth_hdr);
+ ve = val_eth[dp];
+
+ dst_port[0] = dp;
+ rfc1812_process(ipv4_hdr, dst_port, pkt->packet_type);
+
+ te = _mm_blend_epi16(te, ve, MASK_ETH);
+ _mm_storeu_si128((__m128i *)eth_hdr, te);
+}
+
+/*
+ * 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, dprt, portid);
+ } else {
+ dst.x = dip;
+ dprt[0] = get_dst_port(qconf, pkt[0], dst.u32[0], portid);
+ dprt[1] = get_dst_port(qconf, pkt[1], dst.u32[1], portid);
+ dprt[2] = get_dst_port(qconf, pkt[2], dst.u32[2], portid);
+ dprt[3] = get_dst_port(qconf, pkt[3], dst.u32[3], portid);
+ }
+}
+
+/*
+ * 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) {
+ lp = pnum->u16 + gptbl[v].idx;
+ lp[0] = 1;
+ pnum->u64 = gptbl[v].pnum;
+ }
+
+ return lp;
+}
+
+/*
+ * 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, k;
+ uint16_t dlp;
+ uint16_t *lp;
+ uint16_t dst_port[MAX_PKT_BURST];
+ __m128i dip[MAX_PKT_BURST / FWDSTEP];
+ uint32_t ipv4_flag[MAX_PKT_BURST / FWDSTEP];
+ uint16_t pnum[MAX_PKT_BURST + 1];
+
+ 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]);
+ }
+
+ k = RTE_ALIGN_FLOOR(nb_rx, 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]);
+ }
+
+ /*
+ * 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(qconf, pkts_burst[j], dst_port + j, portid);
+ GROUP_PORT_STEP(dlp, dst_port, lp, pnum, j);
+ j++;
+ case 2:
+ process_packet(qconf, pkts_burst[j], dst_port + j, portid);
+ GROUP_PORT_STEP(dlp, dst_port, lp, pnum, j);
+ j++;
+ case 1:
+ process_packet(qconf, pkts_burst[j], dst_port + j, portid);
+ GROUP_PORT_STEP(dlp, dst_port, lp, pnum, j);
+ j++;
+ }
+
+ /*
+ * Send packets out, through destination port.
+ * Consecuteve pacekts 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_LPM_SSE_H__ */
diff --git a/examples/l3fwd/main.c b/examples/l3fwd/main.c
index 5b0c2dd..729104f 100644
--- a/examples/l3fwd/main.c
+++ b/examples/l3fwd/main.c
@@ -71,129 +71,54 @@
#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>
-#define APP_LOOKUP_EXACT_MATCH 0
-#define APP_LOOKUP_LPM 1
-#define DO_RFC_1812_CHECKS
-
-#ifndef APP_LOOKUP_METHOD
-#define APP_LOOKUP_METHOD APP_LOOKUP_LPM
-#endif
-
-/*
- * When set to zero, simple forwaring path is eanbled.
- * When set to one, optimized forwarding path is enabled.
- * Note that LPM optimisation path uses SSE4.1 instructions.
- */
-#if ((APP_LOOKUP_METHOD == APP_LOOKUP_LPM) && !defined(__SSE4_1__))
-#define ENABLE_MULTI_BUFFER_OPTIMIZE 0
-#else
-#define ENABLE_MULTI_BUFFER_OPTIMIZE 1
-#endif
-
-#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
-#include <rte_hash.h>
-#elif (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
-#include <rte_lpm.h>
-#include <rte_lpm6.h>
-#else
-#error "APP_LOOKUP_METHOD set to incorrect value"
-#endif
-
-#ifndef IPv6_BYTES
-#define IPv6_BYTES_FMT "%02x%02x:%02x%02x:%02x%02x:%02x%02x:"\
- "%02x%02x:%02x%02x:%02x%02x:%02x%02x"
-#define IPv6_BYTES(addr) \
- addr[0], addr[1], addr[2], addr[3], \
- addr[4], addr[5], addr[6], addr[7], \
- addr[8], addr[9], addr[10], addr[11],\
- addr[12], addr[13],addr[14], addr[15]
-#endif
-
-
-#define RTE_LOGTYPE_L3FWD RTE_LOGTYPE_USER1
-
-#define MAX_JUMBO_PKT_LEN 9600
-
-#define IPV6_ADDR_LEN 16
-
-#define MEMPOOL_CACHE_SIZE 256
+#include "l3fwd.h"
/*
- * 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
+ * Configurable number of RX/TX ring descriptors
*/
+#define RTE_TEST_RX_DESC_DEFAULT 128
+#define RTE_TEST_TX_DESC_DEFAULT 512
-#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)
+#define MAX_TX_QUEUE_PER_PORT RTE_MAX_ETHPORTS
+#define MAX_RX_QUEUE_PER_PORT 128
-#define MAX_PKT_BURST 32
-#define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
+#define MAX_LCORE_PARAMS 1024
-/*
- * Try to avoid TX buffering if we have at least MAX_TX_BURST packets to send.
- */
-#define MAX_TX_BURST (MAX_PKT_BURST / 2)
+/* 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;
-#define NB_SOCKETS 8
+/**< Ports set in promiscuous mode off by default. */
+static int promiscuous_on;
-/* Configure how many packets ahead to prefetch, when reading packets */
-#define PREFETCH_OFFSET 3
+/* Select Longest-Prefix or Exact match. */
+static int l3fwd_lpm_on;
+static int l3fwd_em_on;
-/* Used to mark destination port as 'invalid'. */
-#define BAD_PORT ((uint16_t)-1)
+static int numa_on = 1; /**< NUMA is enabled by default. */
-#define FWDSTEP 4
-
-/*
- * Configurable number of RX/TX ring descriptors
- */
-#define RTE_TEST_RX_DESC_DEFAULT 128
-#define RTE_TEST_TX_DESC_DEFAULT 512
-static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
-static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
+/* Global variables. */
/* ethernet addresses of ports */
-static uint64_t dest_eth_addr[RTE_MAX_ETHPORTS];
-static struct ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];
-
-static __m128i val_eth[RTE_MAX_ETHPORTS];
+uint64_t dest_eth_addr[RTE_MAX_ETHPORTS];
+struct ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];
-/* replace first 12B of the ethernet header. */
-#define MASK_ETH 0x3f
+__m128i val_eth[RTE_MAX_ETHPORTS];
/* mask of enabled ports */
-static uint32_t enabled_port_mask = 0;
-static int promiscuous_on = 0; /**< Ports set in promiscuous mode off by default. */
-static int numa_on = 1; /**< NUMA is enabled by default. */
+uint32_t enabled_port_mask;
-#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
-static int ipv6 = 0; /**< ipv6 is false by default. */
-#endif
+/* Used only in exact match mode. */
+int ipv6; /**< ipv6 is false by default. */
+uint32_t hash_entry_number = HASH_ENTRY_NUMBER_DEFAULT;
-struct mbuf_table {
- uint16_t len;
- struct rte_mbuf *m_table[MAX_PKT_BURST];
-};
+struct lcore_conf lcore_conf[RTE_MAX_LCORE];
-struct lcore_rx_queue {
- uint8_t port_id;
- uint8_t queue_id;
-} __rte_cache_aligned;
-
-#define MAX_RX_QUEUE_PER_LCORE 16
-#define MAX_TX_QUEUE_PER_PORT RTE_MAX_ETHPORTS
-#define MAX_RX_QUEUE_PER_PORT 128
-
-#define MAX_LCORE_PARAMS 1024
struct lcore_params {
uint8_t port_id;
uint8_t queue_id;
@@ -241,1546 +166,43 @@ static struct rte_eth_conf port_conf = {
static struct rte_mempool * pktmbuf_pool[NB_SOCKETS];
-#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
-
-#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
-
-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;
- };
- __m128i 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;
- };
- __m128i xmm[XMM_NUM_IN_IPV6_5TUPLE];
-};
-
-struct ipv4_l3fwd_route {
- struct ipv4_5tuple key;
- uint8_t if_out;
-};
-
-struct ipv6_l3fwd_route {
- struct ipv6_5tuple key;
- uint8_t if_out;
-};
-
-static struct ipv4_l3fwd_route ipv4_l3fwd_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_route ipv6_l3fwd_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},
-};
-
-typedef struct rte_hash lookup_struct_t;
-static lookup_struct_t *ipv4_l3fwd_lookup_struct[NB_SOCKETS];
-static lookup_struct_t *ipv6_l3fwd_lookup_struct[NB_SOCKETS];
-
-#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
-
-static uint32_t hash_entry_number = HASH_ENTRY_NUMBER_DEFAULT;
-
-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_NUM_ROUTES \
- (sizeof(ipv4_l3fwd_route_array) / sizeof(ipv4_l3fwd_route_array[0]))
-
-#define IPV6_L3FWD_NUM_ROUTES \
- (sizeof(ipv6_l3fwd_route_array) / sizeof(ipv6_l3fwd_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;
-
-#endif
-
-#if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
-struct ipv4_l3fwd_route {
- uint32_t ip;
- uint8_t depth;
- uint8_t if_out;
+struct l3fwd_lkp_mode {
+ void (*setup)(int);
+ int (*main_loop)(void *);
+ void* (*get_ipv4_lookup_struct)(int);
+ void* (*get_ipv6_lookup_struct)(int);
};
-struct ipv6_l3fwd_route {
- uint8_t ip[16];
- uint8_t depth;
- uint8_t if_out;
-};
+static struct l3fwd_lkp_mode l3fwd_lkp;
-static struct ipv4_l3fwd_route ipv4_l3fwd_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 l3fwd_lkp_mode l3fwd_em_lkp = {
+ .setup = setup_hash,
+ .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 ipv6_l3fwd_route ipv6_l3fwd_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},
+static struct l3fwd_lkp_mode l3fwd_lpm_lkp = {
+ .setup = setup_lpm,
+ .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,
};
-#define IPV4_L3FWD_NUM_ROUTES \
- (sizeof(ipv4_l3fwd_route_array) / sizeof(ipv4_l3fwd_route_array[0]))
-#define IPV6_L3FWD_NUM_ROUTES \
- (sizeof(ipv6_l3fwd_route_array) / sizeof(ipv6_l3fwd_route_array[0]))
-
-#define IPV4_L3FWD_LPM_MAX_RULES 1024
-#define IPV6_L3FWD_LPM_MAX_RULES 1024
-#define IPV6_L3FWD_LPM_NUMBER_TBL8S (1 << 16)
-
-typedef struct rte_lpm lookup_struct_t;
-typedef struct rte_lpm6 lookup6_struct_t;
-static lookup_struct_t *ipv4_l3fwd_lookup_struct[NB_SOCKETS];
-static lookup6_struct_t *ipv6_l3fwd_lookup_struct[NB_SOCKETS];
-#endif
-
-struct lcore_conf {
- uint16_t n_rx_queue;
- struct lcore_rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
- uint16_t tx_queue_id[RTE_MAX_ETHPORTS];
- struct mbuf_table tx_mbufs[RTE_MAX_ETHPORTS];
- lookup_struct_t * ipv4_lookup_struct;
-#if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
- lookup6_struct_t * ipv6_lookup_struct;
-#else
- lookup_struct_t * ipv6_lookup_struct;
-#endif
-} __rte_cache_aligned;
-
-static 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 rte_mbuf *m, uint8_t port)
-{
- uint32_t lcore_id;
- uint16_t len;
- struct lcore_conf *qconf;
-
- lcore_id = rte_lcore_id();
-
- qconf = &lcore_conf[lcore_id];
- 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;
-}
-
-#if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
-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;
-}
-#endif /* APP_LOOKUP_LPM */
-
-#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
-
-#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
-
-static __m128i mask0;
-static __m128i mask1;
-static __m128i mask2;
-static inline uint8_t
-get_ipv4_dst_port(void *ipv4_hdr, uint8_t portid, lookup_struct_t * ipv4_l3fwd_lookup_struct)
-{
- int ret = 0;
- union ipv4_5tuple_host key;
-
- ipv4_hdr = (uint8_t *)ipv4_hdr + offsetof(struct ipv4_hdr, time_to_live);
- __m128i data = _mm_loadu_si128((__m128i*)(ipv4_hdr));
- /* Get 5 tuple: dst port, src port, dst IP address, src IP address and protocol */
- key.xmm = _mm_and_si128(data, mask0);
- /* 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
-get_ipv6_dst_port(void *ipv6_hdr, uint8_t portid, lookup_struct_t * ipv6_l3fwd_lookup_struct)
-{
- int ret = 0;
- union ipv6_5tuple_host key;
-
- ipv6_hdr = (uint8_t *)ipv6_hdr + offsetof(struct ipv6_hdr, payload_len);
- __m128i data0 = _mm_loadu_si128((__m128i*)(ipv6_hdr));
- __m128i data1 = _mm_loadu_si128((__m128i*)(((uint8_t*)ipv6_hdr)+sizeof(__m128i)));
- __m128i data2 = _mm_loadu_si128((__m128i*)(((uint8_t*)ipv6_hdr)+sizeof(__m128i)+sizeof(__m128i)));
- /* Get part of 5 tuple: src IP address lower 96 bits and protocol */
- key.xmm[0] = _mm_and_si128(data0, mask1);
- /* Get part of 5 tuple: dst IP address lower 96 bits and src IP address higher 32 bits */
- key.xmm[1] = data1;
- /* Get part of 5 tuple: dst port and src port and dst IP address higher 32 bits */
- key.xmm[2] = _mm_and_si128(data2, mask2);
-
- /* 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]);
-}
-#endif
-
-#if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
-
-static inline uint8_t
-get_ipv4_dst_port(void *ipv4_hdr, uint8_t portid, lookup_struct_t * ipv4_l3fwd_lookup_struct)
-{
- uint8_t next_hop;
-
- 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
-get_ipv6_dst_port(void *ipv6_hdr, uint8_t portid, lookup6_struct_t * ipv6_l3fwd_lookup_struct)
-{
- uint8_t next_hop;
- return (uint8_t) ((rte_lpm6_lookup(ipv6_l3fwd_lookup_struct,
- ((struct ipv6_hdr*)ipv6_hdr)->dst_addr, &next_hop) == 0)?
- next_hop : portid);
-}
-#endif
-
-static inline void l3fwd_simple_forward(struct rte_mbuf *m, uint8_t portid,
- struct lcore_conf *qconf) __attribute__((unused));
-
-#if ((APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH) && \
- (ENABLE_MULTI_BUFFER_OPTIMIZE == 1))
-
-#define MASK_ALL_PKTS 0xff
-#define EXCLUDE_1ST_PKT 0xfe
-#define EXCLUDE_2ND_PKT 0xfd
-#define EXCLUDE_3RD_PKT 0xfb
-#define EXCLUDE_4TH_PKT 0xf7
-#define EXCLUDE_5TH_PKT 0xef
-#define EXCLUDE_6TH_PKT 0xdf
-#define EXCLUDE_7TH_PKT 0xbf
-#define EXCLUDE_8TH_PKT 0x7f
-
-static inline void
-simple_ipv4_fwd_8pkts(struct rte_mbuf *m[8], uint8_t portid, struct lcore_conf *qconf)
-{
- struct ether_hdr *eth_hdr[8];
- struct ipv4_hdr *ipv4_hdr[8];
- uint8_t dst_port[8];
- int32_t ret[8];
- union ipv4_5tuple_host key[8];
- __m128i data[8];
-
- eth_hdr[0] = rte_pktmbuf_mtod(m[0], struct ether_hdr *);
- eth_hdr[1] = rte_pktmbuf_mtod(m[1], struct ether_hdr *);
- eth_hdr[2] = rte_pktmbuf_mtod(m[2], struct ether_hdr *);
- eth_hdr[3] = rte_pktmbuf_mtod(m[3], struct ether_hdr *);
- eth_hdr[4] = rte_pktmbuf_mtod(m[4], struct ether_hdr *);
- eth_hdr[5] = rte_pktmbuf_mtod(m[5], struct ether_hdr *);
- eth_hdr[6] = rte_pktmbuf_mtod(m[6], struct ether_hdr *);
- eth_hdr[7] = rte_pktmbuf_mtod(m[7], struct ether_hdr *);
-
- /* Handle IPv4 headers.*/
- ipv4_hdr[0] = rte_pktmbuf_mtod_offset(m[0], struct ipv4_hdr *,
- sizeof(struct ether_hdr));
- ipv4_hdr[1] = rte_pktmbuf_mtod_offset(m[1], struct ipv4_hdr *,
- sizeof(struct ether_hdr));
- ipv4_hdr[2] = rte_pktmbuf_mtod_offset(m[2], struct ipv4_hdr *,
- sizeof(struct ether_hdr));
- ipv4_hdr[3] = rte_pktmbuf_mtod_offset(m[3], struct ipv4_hdr *,
- sizeof(struct ether_hdr));
- ipv4_hdr[4] = rte_pktmbuf_mtod_offset(m[4], struct ipv4_hdr *,
- sizeof(struct ether_hdr));
- ipv4_hdr[5] = rte_pktmbuf_mtod_offset(m[5], struct ipv4_hdr *,
- sizeof(struct ether_hdr));
- ipv4_hdr[6] = rte_pktmbuf_mtod_offset(m[6], struct ipv4_hdr *,
- sizeof(struct ether_hdr));
- ipv4_hdr[7] = rte_pktmbuf_mtod_offset(m[7], struct ipv4_hdr *,
- sizeof(struct ether_hdr));
-
-#ifdef DO_RFC_1812_CHECKS
- /* Check to make sure the packet is valid (RFC1812) */
- uint8_t valid_mask = MASK_ALL_PKTS;
- if (is_valid_ipv4_pkt(ipv4_hdr[0], m[0]->pkt_len) < 0) {
- rte_pktmbuf_free(m[0]);
- valid_mask &= EXCLUDE_1ST_PKT;
- }
- if (is_valid_ipv4_pkt(ipv4_hdr[1], m[1]->pkt_len) < 0) {
- rte_pktmbuf_free(m[1]);
- valid_mask &= EXCLUDE_2ND_PKT;
- }
- if (is_valid_ipv4_pkt(ipv4_hdr[2], m[2]->pkt_len) < 0) {
- rte_pktmbuf_free(m[2]);
- valid_mask &= EXCLUDE_3RD_PKT;
- }
- if (is_valid_ipv4_pkt(ipv4_hdr[3], m[3]->pkt_len) < 0) {
- rte_pktmbuf_free(m[3]);
- valid_mask &= EXCLUDE_4TH_PKT;
- }
- if (is_valid_ipv4_pkt(ipv4_hdr[4], m[4]->pkt_len) < 0) {
- rte_pktmbuf_free(m[4]);
- valid_mask &= EXCLUDE_5TH_PKT;
- }
- if (is_valid_ipv4_pkt(ipv4_hdr[5], m[5]->pkt_len) < 0) {
- rte_pktmbuf_free(m[5]);
- valid_mask &= EXCLUDE_6TH_PKT;
- }
- if (is_valid_ipv4_pkt(ipv4_hdr[6], m[6]->pkt_len) < 0) {
- rte_pktmbuf_free(m[6]);
- valid_mask &= EXCLUDE_7TH_PKT;
- }
- if (is_valid_ipv4_pkt(ipv4_hdr[7], m[7]->pkt_len) < 0) {
- rte_pktmbuf_free(m[7]);
- valid_mask &= EXCLUDE_8TH_PKT;
- }
- if (unlikely(valid_mask != MASK_ALL_PKTS)) {
- if (valid_mask == 0){
- return;
- } else {
- uint8_t i = 0;
- for (i = 0; i < 8; i++) {
- if ((0x1 << i) & valid_mask) {
- l3fwd_simple_forward(m[i], portid, qconf);
- }
- }
- return;
- }
- }
-#endif // End of #ifdef DO_RFC_1812_CHECKS
-
- 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);
- key[1].xmm = _mm_and_si128(data[1], mask0);
- key[2].xmm = _mm_and_si128(data[2], mask0);
- key[3].xmm = _mm_and_si128(data[3], mask0);
- key[4].xmm = _mm_and_si128(data[4], mask0);
- key[5].xmm = _mm_and_si128(data[5], mask0);
- key[6].xmm = _mm_and_si128(data[6], mask0);
- key[7].xmm = _mm_and_si128(data[7], mask0);
-
- 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;
-
-#ifdef DO_RFC_1812_CHECKS
- /* Update time to live and header checksum */
- --(ipv4_hdr[0]->time_to_live);
- --(ipv4_hdr[1]->time_to_live);
- --(ipv4_hdr[2]->time_to_live);
- --(ipv4_hdr[3]->time_to_live);
- ++(ipv4_hdr[0]->hdr_checksum);
- ++(ipv4_hdr[1]->hdr_checksum);
- ++(ipv4_hdr[2]->hdr_checksum);
- ++(ipv4_hdr[3]->hdr_checksum);
- --(ipv4_hdr[4]->time_to_live);
- --(ipv4_hdr[5]->time_to_live);
- --(ipv4_hdr[6]->time_to_live);
- --(ipv4_hdr[7]->time_to_live);
- ++(ipv4_hdr[4]->hdr_checksum);
- ++(ipv4_hdr[5]->hdr_checksum);
- ++(ipv4_hdr[6]->hdr_checksum);
- ++(ipv4_hdr[7]->hdr_checksum);
-#endif
-
- /* dst addr */
- *(uint64_t *)ð_hdr[0]->d_addr = dest_eth_addr[dst_port[0]];
- *(uint64_t *)ð_hdr[1]->d_addr = dest_eth_addr[dst_port[1]];
- *(uint64_t *)ð_hdr[2]->d_addr = dest_eth_addr[dst_port[2]];
- *(uint64_t *)ð_hdr[3]->d_addr = dest_eth_addr[dst_port[3]];
- *(uint64_t *)ð_hdr[4]->d_addr = dest_eth_addr[dst_port[4]];
- *(uint64_t *)ð_hdr[5]->d_addr = dest_eth_addr[dst_port[5]];
- *(uint64_t *)ð_hdr[6]->d_addr = dest_eth_addr[dst_port[6]];
- *(uint64_t *)ð_hdr[7]->d_addr = dest_eth_addr[dst_port[7]];
-
- /* src addr */
- ether_addr_copy(&ports_eth_addr[dst_port[0]], ð_hdr[0]->s_addr);
- ether_addr_copy(&ports_eth_addr[dst_port[1]], ð_hdr[1]->s_addr);
- ether_addr_copy(&ports_eth_addr[dst_port[2]], ð_hdr[2]->s_addr);
- ether_addr_copy(&ports_eth_addr[dst_port[3]], ð_hdr[3]->s_addr);
- ether_addr_copy(&ports_eth_addr[dst_port[4]], ð_hdr[4]->s_addr);
- ether_addr_copy(&ports_eth_addr[dst_port[5]], ð_hdr[5]->s_addr);
- ether_addr_copy(&ports_eth_addr[dst_port[6]], ð_hdr[6]->s_addr);
- ether_addr_copy(&ports_eth_addr[dst_port[7]], ð_hdr[7]->s_addr);
-
- send_single_packet(m[0], (uint8_t)dst_port[0]);
- send_single_packet(m[1], (uint8_t)dst_port[1]);
- send_single_packet(m[2], (uint8_t)dst_port[2]);
- send_single_packet(m[3], (uint8_t)dst_port[3]);
- send_single_packet(m[4], (uint8_t)dst_port[4]);
- send_single_packet(m[5], (uint8_t)dst_port[5]);
- send_single_packet(m[6], (uint8_t)dst_port[6]);
- send_single_packet(m[7], (uint8_t)dst_port[7]);
-
-}
-
-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);
- return;
-}
-
-static inline void
-simple_ipv6_fwd_8pkts(struct rte_mbuf *m[8], uint8_t portid, struct lcore_conf *qconf)
-{
- struct ether_hdr *eth_hdr[8];
- __attribute__((unused)) struct ipv6_hdr *ipv6_hdr[8];
- uint8_t dst_port[8];
- int32_t ret[8];
- union ipv6_5tuple_host key[8];
-
- eth_hdr[0] = rte_pktmbuf_mtod(m[0], struct ether_hdr *);
- eth_hdr[1] = rte_pktmbuf_mtod(m[1], struct ether_hdr *);
- eth_hdr[2] = rte_pktmbuf_mtod(m[2], struct ether_hdr *);
- eth_hdr[3] = rte_pktmbuf_mtod(m[3], struct ether_hdr *);
- eth_hdr[4] = rte_pktmbuf_mtod(m[4], struct ether_hdr *);
- eth_hdr[5] = rte_pktmbuf_mtod(m[5], struct ether_hdr *);
- eth_hdr[6] = rte_pktmbuf_mtod(m[6], struct ether_hdr *);
- eth_hdr[7] = rte_pktmbuf_mtod(m[7], struct ether_hdr *);
-
- /* Handle IPv6 headers.*/
- ipv6_hdr[0] = rte_pktmbuf_mtod_offset(m[0], struct ipv6_hdr *,
- sizeof(struct ether_hdr));
- ipv6_hdr[1] = rte_pktmbuf_mtod_offset(m[1], struct ipv6_hdr *,
- sizeof(struct ether_hdr));
- ipv6_hdr[2] = rte_pktmbuf_mtod_offset(m[2], struct ipv6_hdr *,
- sizeof(struct ether_hdr));
- ipv6_hdr[3] = rte_pktmbuf_mtod_offset(m[3], struct ipv6_hdr *,
- sizeof(struct ether_hdr));
- ipv6_hdr[4] = rte_pktmbuf_mtod_offset(m[4], struct ipv6_hdr *,
- sizeof(struct ether_hdr));
- ipv6_hdr[5] = rte_pktmbuf_mtod_offset(m[5], struct ipv6_hdr *,
- sizeof(struct ether_hdr));
- ipv6_hdr[6] = rte_pktmbuf_mtod_offset(m[6], struct ipv6_hdr *,
- sizeof(struct ether_hdr));
- ipv6_hdr[7] = rte_pktmbuf_mtod_offset(m[7], struct ipv6_hdr *,
- sizeof(struct ether_hdr));
-
- get_ipv6_5tuple(m[0], mask1, mask2, &key[0]);
- get_ipv6_5tuple(m[1], mask1, mask2, &key[1]);
- get_ipv6_5tuple(m[2], mask1, mask2, &key[2]);
- get_ipv6_5tuple(m[3], mask1, mask2, &key[3]);
- get_ipv6_5tuple(m[4], mask1, mask2, &key[4]);
- get_ipv6_5tuple(m[5], mask1, mask2, &key[5]);
- get_ipv6_5tuple(m[6], mask1, mask2, &key[6]);
- get_ipv6_5tuple(m[7], mask1, mask2, &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;
-
- /* dst addr */
- *(uint64_t *)ð_hdr[0]->d_addr = dest_eth_addr[dst_port[0]];
- *(uint64_t *)ð_hdr[1]->d_addr = dest_eth_addr[dst_port[1]];
- *(uint64_t *)ð_hdr[2]->d_addr = dest_eth_addr[dst_port[2]];
- *(uint64_t *)ð_hdr[3]->d_addr = dest_eth_addr[dst_port[3]];
- *(uint64_t *)ð_hdr[4]->d_addr = dest_eth_addr[dst_port[4]];
- *(uint64_t *)ð_hdr[5]->d_addr = dest_eth_addr[dst_port[5]];
- *(uint64_t *)ð_hdr[6]->d_addr = dest_eth_addr[dst_port[6]];
- *(uint64_t *)ð_hdr[7]->d_addr = dest_eth_addr[dst_port[7]];
-
- /* src addr */
- ether_addr_copy(&ports_eth_addr[dst_port[0]], ð_hdr[0]->s_addr);
- ether_addr_copy(&ports_eth_addr[dst_port[1]], ð_hdr[1]->s_addr);
- ether_addr_copy(&ports_eth_addr[dst_port[2]], ð_hdr[2]->s_addr);
- ether_addr_copy(&ports_eth_addr[dst_port[3]], ð_hdr[3]->s_addr);
- ether_addr_copy(&ports_eth_addr[dst_port[4]], ð_hdr[4]->s_addr);
- ether_addr_copy(&ports_eth_addr[dst_port[5]], ð_hdr[5]->s_addr);
- ether_addr_copy(&ports_eth_addr[dst_port[6]], ð_hdr[6]->s_addr);
- ether_addr_copy(&ports_eth_addr[dst_port[7]], ð_hdr[7]->s_addr);
-
- send_single_packet(m[0], (uint8_t)dst_port[0]);
- send_single_packet(m[1], (uint8_t)dst_port[1]);
- send_single_packet(m[2], (uint8_t)dst_port[2]);
- send_single_packet(m[3], (uint8_t)dst_port[3]);
- send_single_packet(m[4], (uint8_t)dst_port[4]);
- send_single_packet(m[5], (uint8_t)dst_port[5]);
- send_single_packet(m[6], (uint8_t)dst_port[6]);
- send_single_packet(m[7], (uint8_t)dst_port[7]);
-
-}
-#endif /* APP_LOOKUP_METHOD */
-
-static inline __attribute__((always_inline)) void
-l3fwd_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 = 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 *)ð_hdr->d_addr = dest_eth_addr[dst_port];
-
- /* src addr */
- ether_addr_copy(&ports_eth_addr[dst_port], ð_hdr->s_addr);
-
- send_single_packet(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 = 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 *)ð_hdr->d_addr = dest_eth_addr[dst_port];
-
- /* src addr */
- ether_addr_copy(&ports_eth_addr[dst_port], ð_hdr->s_addr);
-
- send_single_packet(m, dst_port);
- } else
- /* Free the mbuf that contains non-IPV4/IPV6 packet */
- rte_pktmbuf_free(m);
-}
-
-#if ((APP_LOOKUP_METHOD == APP_LOOKUP_LPM) && \
- (ENABLE_MULTI_BUFFER_OPTIMIZE == 1))
-#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) do { } while (0)
-#endif /* DO_RFC_1812_CHECKS */
-#endif /* APP_LOOKUP_LPM && ENABLE_MULTI_BUFFER_OPTIMIZE */
-
-
-#if ((APP_LOOKUP_METHOD == APP_LOOKUP_LPM) && \
- (ENABLE_MULTI_BUFFER_OPTIMIZE == 1))
-
-static inline __attribute__((always_inline)) uint16_t
-get_dst_port(const struct lcore_conf *qconf, struct rte_mbuf *pkt,
- uint32_t dst_ipv4, uint8_t portid)
-{
- uint8_t next_hop;
- struct ipv6_hdr *ipv6_hdr;
- struct ether_hdr *eth_hdr;
-
- if (RTE_ETH_IS_IPV4_HDR(pkt->packet_type)) {
- if (rte_lpm_lookup(qconf->ipv4_lookup_struct, dst_ipv4,
- &next_hop) != 0)
- next_hop = 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);
- if (rte_lpm6_lookup(qconf->ipv6_lookup_struct,
- ipv6_hdr->dst_addr, &next_hop) != 0)
- next_hop = portid;
- } else {
- next_hop = portid;
- }
-
- return next_hop;
-}
-
-static inline void
-process_packet(struct lcore_conf *qconf, struct rte_mbuf *pkt,
- uint16_t *dst_port, uint8_t portid)
-{
- struct ether_hdr *eth_hdr;
- struct ipv4_hdr *ipv4_hdr;
- uint32_t dst_ipv4;
- uint16_t dp;
- __m128i te, ve;
-
- eth_hdr = rte_pktmbuf_mtod(pkt, struct ether_hdr *);
- ipv4_hdr = (struct ipv4_hdr *)(eth_hdr + 1);
-
- dst_ipv4 = ipv4_hdr->dst_addr;
- dst_ipv4 = rte_be_to_cpu_32(dst_ipv4);
- dp = get_dst_port(qconf, pkt, dst_ipv4, portid);
-
- te = _mm_loadu_si128((__m128i *)eth_hdr);
- ve = val_eth[dp];
-
- dst_port[0] = dp;
- rfc1812_process(ipv4_hdr, dst_port, pkt->packet_type);
-
- te = _mm_blend_epi16(te, ve, MASK_ETH);
- _mm_storeu_si128((__m128i *)eth_hdr, te);
-}
-
-/*
- * 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, dprt, portid);
- } else {
- dst.x = dip;
- dprt[0] = get_dst_port(qconf, pkt[0], dst.u32[0], portid);
- dprt[1] = get_dst_port(qconf, pkt[1], dst.u32[1], portid);
- dprt[2] = get_dst_port(qconf, pkt[2], dst.u32[2], portid);
- dprt[3] = get_dst_port(qconf, pkt[3], dst.u32[3], portid);
- }
-}
-
/*
- * Update source and destination MAC addresses in the ethernet header.
- * Perform RFC1812 checks and updates for IPV4 packets.
+ * Setup lookup methods for forwarding.
+ * Currently exact-match and longest-prefix-match
+ * are supported ones.
*/
-static inline void
-processx4_step3(struct rte_mbuf *pkt[FWDSTEP], uint16_t dst_port[FWDSTEP])
+static void
+setup_l3fwd_lookup_tables(void)
{
- __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) {
- lp = pnum->u16 + gptbl[v].idx;
- lp[0] = 1;
- pnum->u64 = gptbl[v].pnum;
- }
-
- return lp;
-}
-
-#endif /* APP_LOOKUP_METHOD */
-
-/* main processing loop */
-static int
-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, j, 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;
-
-#if ((APP_LOOKUP_METHOD == APP_LOOKUP_LPM) && \
- (ENABLE_MULTI_BUFFER_OPTIMIZE == 1))
- int32_t k;
- uint16_t dlp;
- uint16_t *lp;
- uint16_t dst_port[MAX_PKT_BURST];
- __m128i dip[MAX_PKT_BURST / FWDSTEP];
- uint32_t ipv4_flag[MAX_PKT_BURST / FWDSTEP];
- uint16_t pnum[MAX_PKT_BURST + 1];
-#endif
-
- 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 (1) {
-
- cur_tsc = rte_rdtsc();
-
- /*
- * TX burst queue drain
- */
- diff_tsc = cur_tsc - prev_tsc;
- if (unlikely(diff_tsc > drain_tsc)) {
-
- /*
- * This could be optimized (use queueid instead of
- * portid), but it is not called so often
- */
- for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
- 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 (ENABLE_MULTI_BUFFER_OPTIMIZE == 1)
-#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
- {
- /*
- * 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;
- if (pkt_type & RTE_PTYPE_L3_IPV4) {
- simple_ipv4_fwd_8pkts(
- &pkts_burst[j], portid, qconf);
- } else if (pkt_type &
- RTE_PTYPE_L3_IPV6) {
- simple_ipv6_fwd_8pkts(&pkts_burst[j],
- portid, qconf);
- } else {
- l3fwd_simple_forward(pkts_burst[j],
- portid, qconf);
- l3fwd_simple_forward(pkts_burst[j+1],
- portid, qconf);
- l3fwd_simple_forward(pkts_burst[j+2],
- portid, qconf);
- l3fwd_simple_forward(pkts_burst[j+3],
- portid, qconf);
- l3fwd_simple_forward(pkts_burst[j+4],
- portid, qconf);
- l3fwd_simple_forward(pkts_burst[j+5],
- portid, qconf);
- l3fwd_simple_forward(pkts_burst[j+6],
- portid, qconf);
- l3fwd_simple_forward(pkts_burst[j+7],
- portid, qconf);
- }
- }
- for (; j < nb_rx ; j++) {
- l3fwd_simple_forward(pkts_burst[j],
- portid, qconf);
- }
- }
-#elif (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
-
- 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]);
- }
-
- k = RTE_ALIGN_FLOOR(nb_rx, 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]);
- }
-
- /*
- * 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(qconf, pkts_burst[j],
- dst_port + j, portid);
- GROUP_PORT_STEP(dlp, dst_port, lp, pnum, j);
- j++;
- case 2:
- process_packet(qconf, pkts_burst[j],
- dst_port + j, portid);
- GROUP_PORT_STEP(dlp, dst_port, lp, pnum, j);
- j++;
- case 1:
- process_packet(qconf, pkts_burst[j],
- dst_port + j, portid);
- GROUP_PORT_STEP(dlp, dst_port, lp, pnum, j);
- j++;
- }
-
- /*
- * Send packets out, through destination port.
- * Consecuteve pacekts 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 /* APP_LOOKUP_METHOD */
-#else /* ENABLE_MULTI_BUFFER_OPTIMIZE == 0 */
-
- /* 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_simple_forward(pkts_burst[j], portid,
- qconf);
- }
-
- /* Forward remaining prefetched packets */
- for (; j < nb_rx; j++) {
- l3fwd_simple_forward(pkts_burst[j], portid,
- qconf);
- }
-#endif /* ENABLE_MULTI_BUFFER_OPTIMIZE */
-
- }
- }
+ /* 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
@@ -1837,7 +259,8 @@ get_port_n_rx_queues(const uint8_t port)
uint16_t i;
for (i = 0; i < nb_lcore_params; ++i) {
- if (lcore_params[i].port_id == port && lcore_params[i].queue_id > queue)
+ if (lcore_params[i].port_id == port &&
+ lcore_params[i].queue_id > queue)
queue = lcore_params[i].queue_id;
}
return (uint8_t)(++queue);
@@ -1876,6 +299,8 @@ print_usage(const char *prgname)
" [--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"
@@ -1886,7 +311,8 @@ print_usage(const char *prgname)
prgname);
}
-static int parse_max_pkt_len(const char *pktlen)
+static int
+parse_max_pkt_len(const char *pktlen)
{
char *end = NULL;
unsigned long len;
@@ -1919,7 +345,6 @@ parse_portmask(const char *portmask)
return pm;
}
-#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
static int
parse_hash_entry_number(const char *hash_entry_num)
{
@@ -1935,7 +360,6 @@ parse_hash_entry_number(const char *hash_entry_num)
return hash_en;
}
-#endif
static int
parse_config(const char *q_arg)
@@ -1979,9 +403,12 @@ parse_config(const char *q_arg)
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];
+ 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;
@@ -2016,6 +443,9 @@ parse_eth_dest(const char *optarg)
*(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"
@@ -2023,6 +453,20 @@ parse_eth_dest(const char *optarg)
#define CMD_LINE_OPT_ENABLE_JUMBO "enable-jumbo"
#define CMD_LINE_OPT_HASH_ENTRY_NUM "hash-entry-num"
+/*
+ * 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)
@@ -2043,7 +487,24 @@ parse_args(int argc, char **argv)
argvopt = argv;
- while ((opt = getopt_long(argc, argvopt, "p:P",
+ /* 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) {
@@ -2051,80 +512,102 @@ parse_args(int argc, char **argv)
case 'p':
enabled_port_mask = parse_portmask(optarg);
if (enabled_port_mask == 0) {
- printf("invalid portmask\n");
+ printf("%s\n", str1);
print_usage(prgname);
return -1;
}
break;
case 'P':
- printf("Promiscuous mode selected\n");
+ 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))) {
+ if (!strncmp(lgopts[option_index].name,
+ CMD_LINE_OPT_CONFIG,
+ sizeof(CMD_LINE_OPT_CONFIG))) {
+
ret = parse_config(optarg);
if (ret) {
- printf("invalid config\n");
+ 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))) {
+ 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("numa is disabled \n");
+ 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 (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
- if (!strncmp(lgopts[option_index].name, CMD_LINE_OPT_IPV6,
+ if (!strncmp(lgopts[option_index].name,
+ CMD_LINE_OPT_IPV6,
sizeof(CMD_LINE_OPT_IPV6))) {
- printf("ipv6 is specified \n");
+ printf("%sn", str7);
ipv6 = 1;
}
-#endif
- 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};
+ 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("jumbo frame is enabled - disabling simple TX path\n");
+ 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)) {
+ /*
+ * 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("invalid packet length\n");
+ 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("set jumbo frame max packet length to %u\n",
- (unsigned int)port_conf.rxmode.max_rx_pkt_len);
+ printf("%s %u\n", str10,
+ (unsigned int)port_conf.rxmode.max_rx_pkt_len);
}
-#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
- if (!strncmp(lgopts[option_index].name, CMD_LINE_OPT_HASH_ENTRY_NUM,
+
+ 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("invalid hash entry number\n");
+ printf("%s\n", str11);
print_usage(prgname);
return -1;
}
}
-#endif
break;
default:
@@ -2133,6 +616,31 @@ parse_args(int argc, char **argv)
}
}
+ /* 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;
@@ -2149,315 +657,6 @@ print_ethaddr(const char *name, const struct ether_addr *eth_addr)
printf("%s%s", name, buf);
}
-#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
-
-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;
- return;
-}
-
-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;
- return;
-}
-
-#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;
- uint32_t array_len = sizeof(ipv4_l3fwd_route_array)/sizeof(ipv4_l3fwd_route_array[0]);
-
- mask0 = _mm_set_epi32(ALL_32_BITS, ALL_32_BITS, ALL_32_BITS, BIT_8_TO_15);
- for (i = 0; i < array_len; i++) {
- struct ipv4_l3fwd_route entry;
- union ipv4_5tuple_host newkey;
- entry = ipv4_l3fwd_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%" PRIx32 " keys\n", array_len);
-}
-
-#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;
- uint32_t array_len = sizeof(ipv6_l3fwd_route_array)/sizeof(ipv6_l3fwd_route_array[0]);
-
- mask1 = _mm_set_epi32(ALL_32_BITS, ALL_32_BITS, ALL_32_BITS, BIT_16_TO_23);
- mask2 = _mm_set_epi32(0, 0, ALL_32_BITS, ALL_32_BITS);
- for (i = 0; i < array_len; i++) {
- struct ipv6_l3fwd_route entry;
- union ipv6_5tuple_host newkey;
- entry = ipv6_l3fwd_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%" PRIx32 "keys\n", array_len);
-}
-
-#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 = _mm_set_epi32(ALL_32_BITS, ALL_32_BITS, ALL_32_BITS, BIT_8_TO_15);
- for (i = 0; i < nr_flow; i++) {
- struct ipv4_l3fwd_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_route_array[0];
- entry.key.ip_dst = IPv4(101,c,b,a);
- break;
- case 1:
- entry = ipv4_l3fwd_route_array[1];
- entry.key.ip_dst = IPv4(201,c,b,a);
- break;
- case 2:
- entry = ipv4_l3fwd_route_array[2];
- entry.key.ip_dst = IPv4(111,c,b,a);
- break;
- case 3:
- entry = ipv4_l3fwd_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 = _mm_set_epi32(ALL_32_BITS, ALL_32_BITS, ALL_32_BITS, BIT_16_TO_23);
- mask2 = _mm_set_epi32(0, 0, ALL_32_BITS, ALL_32_BITS);
- for (i = 0; i < nr_flow; i++) {
- struct ipv6_l3fwd_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_route_array[0]; break;
- case 1: entry = ipv6_l3fwd_route_array[1]; break;
- case 2: entry = ipv6_l3fwd_route_array[2]; break;
- case 3: entry = ipv6_l3fwd_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);
-}
-
-static void
-setup_hash(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_lookup_struct[socketid] = rte_hash_create(&ipv4_l3fwd_hash_params);
- if (ipv4_l3fwd_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_lookup_struct[socketid] = rte_hash_create(&ipv6_l3fwd_hash_params);
- if (ipv6_l3fwd_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_lookup_struct[socketid], hash_entry_number);
- } else {
- /* populate the ipv6 hash */
- populate_ipv6_many_flow_into_table(
- ipv6_l3fwd_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_lookup_struct[socketid]);
- } else {
- /* populate the ipv6 hash */
- populate_ipv6_few_flow_into_table(ipv6_l3fwd_lookup_struct[socketid]);
- }
- }
-}
-#endif
-
-#if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
-static void
-setup_lpm(int socketid)
-{
- struct rte_lpm6_config config;
- unsigned i;
- int ret;
- char s[64];
-
- /* create the LPM table */
- snprintf(s, sizeof(s), "IPV4_L3FWD_LPM_%d", socketid);
- ipv4_l3fwd_lookup_struct[socketid] = rte_lpm_create(s, socketid,
- IPV4_L3FWD_LPM_MAX_RULES, 0);
- if (ipv4_l3fwd_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_NUM_ROUTES; i++) {
-
- /* skip unused ports */
- if ((1 << ipv4_l3fwd_route_array[i].if_out &
- enabled_port_mask) == 0)
- continue;
-
- ret = rte_lpm_add(ipv4_l3fwd_lookup_struct[socketid],
- ipv4_l3fwd_route_array[i].ip,
- ipv4_l3fwd_route_array[i].depth,
- ipv4_l3fwd_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_route_array[i].ip,
- ipv4_l3fwd_route_array[i].depth,
- ipv4_l3fwd_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_lookup_struct[socketid] = rte_lpm6_create(s, socketid,
- &config);
- if (ipv6_l3fwd_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_NUM_ROUTES; i++) {
-
- /* skip unused ports */
- if ((1 << ipv6_l3fwd_route_array[i].if_out &
- enabled_port_mask) == 0)
- continue;
-
- ret = rte_lpm6_add(ipv6_l3fwd_lookup_struct[socketid],
- ipv6_l3fwd_route_array[i].ip,
- ipv6_l3fwd_route_array[i].depth,
- ipv6_l3fwd_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_route_array[i].depth,
- ipv6_l3fwd_route_array[i].if_out);
- }
-}
-#endif
-
static int
init_mem(unsigned nb_mbuf)
{
@@ -2476,9 +675,11 @@ init_mem(unsigned nb_mbuf)
socketid = 0;
if (socketid >= NB_SOCKETS) {
- rte_exit(EXIT_FAILURE, "Socket %d of lcore %u is out of range %d\n",
+ 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] =
@@ -2487,19 +688,20 @@ init_mem(unsigned nb_mbuf)
RTE_MBUF_DEFAULT_BUF_SIZE, socketid);
if (pktmbuf_pool[socketid] == NULL)
rte_exit(EXIT_FAILURE,
- "Cannot init mbuf pool on socket %d\n", socketid);
+ "Cannot init mbuf pool on socket %d\n",
+ socketid);
else
- printf("Allocated mbuf pool on socket %d\n", socketid);
+ printf("Allocated mbuf pool on socket %d\n",
+ socketid);
-#if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
- setup_lpm(socketid);
-#else
- setup_hash(socketid);
-#endif
+ /* Setup either LPM or EM(f.e Hash). */
+ l3fwd_lkp.setup(socketid);
}
qconf = &lcore_conf[lcore_id];
- qconf->ipv4_lookup_struct = ipv4_l3fwd_lookup_struct[socketid];
- qconf->ipv6_lookup_struct = ipv6_l3fwd_lookup_struct[socketid];
+ qconf->ipv4_lookup_struct =
+ l3fwd_lkp.get_ipv4_lookup_struct(socketid);
+ qconf->ipv6_lookup_struct =
+ l3fwd_lkp.get_ipv6_lookup_struct(socketid);
}
return 0;
}
@@ -2581,7 +783,8 @@ main(int argc, char **argv)
/* 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);
+ dest_eth_addr[portid] =
+ ETHER_LOCAL_ADMIN_ADDR + ((uint64_t)portid << 40);
*(uint64_t *)(val_eth + portid) = dest_eth_addr[portid];
}
@@ -2606,6 +809,9 @@ main(int argc, char **argv)
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 */
@@ -2627,7 +833,8 @@ main(int argc, char **argv)
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",
+ rte_exit(EXIT_FAILURE,
+ "Cannot configure device: err=%d, port=%d\n",
ret, portid);
rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
@@ -2655,7 +862,8 @@ main(int argc, char **argv)
continue;
if (numa_on)
- socketid = (uint8_t)rte_lcore_to_socket_id(lcore_id);
+ socketid =
+ (uint8_t)rte_lcore_to_socket_id(lcore_id);
else
socketid = 0;
@@ -2669,7 +877,8 @@ main(int argc, char **argv)
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, "
+ rte_exit(EXIT_FAILURE,
+ "rte_eth_tx_queue_setup: err=%d, "
"port=%d\n", ret, portid);
qconf = &lcore_conf[lcore_id];
@@ -2691,7 +900,8 @@ main(int argc, char **argv)
queueid = qconf->rx_queue_list[queue].queue_id;
if (numa_on)
- socketid = (uint8_t)rte_lcore_to_socket_id(lcore_id);
+ socketid =
+ (uint8_t)rte_lcore_to_socket_id(lcore_id);
else
socketid = 0;
@@ -2703,8 +913,9 @@ main(int argc, char **argv)
NULL,
pktmbuf_pool[socketid]);
if (ret < 0)
- rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup: err=%d,"
- "port=%d\n", ret, portid);
+ rte_exit(EXIT_FAILURE,
+ "rte_eth_rx_queue_setup: err=%d, port=%d\n",
+ ret, portid);
}
}
@@ -2718,7 +929,8 @@ main(int argc, char **argv)
/* Start device */
ret = rte_eth_dev_start(portid);
if (ret < 0)
- rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, port=%d\n",
+ rte_exit(EXIT_FAILURE,
+ "rte_eth_dev_start: err=%d, port=%d\n",
ret, portid);
/*
@@ -2734,7 +946,7 @@ main(int argc, char **argv)
check_all_ports_link_status((uint8_t)nb_ports, enabled_port_mask);
/* launch per-lcore init on every lcore */
- rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER);
+ 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)
return -1;
--
1.9.1
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