DPDK  2.2.0
l3fwd/main.c
/*-
* 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_common.h>
#include <rte_vect.h>
#include <rte_byteorder.h>
#include <rte_log.h>
#include <rte_memory.h>
#include <rte_memcpy.h>
#include <rte_memzone.h>
#include <rte_eal.h>
#include <rte_per_lcore.h>
#include <rte_launch.h>
#include <rte_atomic.h>
#include <rte_cycles.h>
#include <rte_prefetch.h>
#include <rte_lcore.h>
#include <rte_per_lcore.h>
#include <rte_branch_prediction.h>
#include <rte_interrupts.h>
#include <rte_pci.h>
#include <rte_random.h>
#include <rte_debug.h>
#include <rte_ether.h>
#include <rte_ethdev.h>
#include <rte_ring.h>
#include <rte_mempool.h>
#include <rte_mbuf.h>
#include <rte_ip.h>
#include <rte_tcp.h>
#include <rte_udp.h>
#include <rte_string_fns.h>
#include <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
/*
* 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)
#define MAX_PKT_BURST 32
#define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
/*
* Try to avoid TX buffering if we have at least MAX_TX_BURST packets to send.
*/
#define MAX_TX_BURST (MAX_PKT_BURST / 2)
#define NB_SOCKETS 8
/* Configure how many packets ahead to prefetch, when reading packets */
#define PREFETCH_OFFSET 3
/* Used to mark destination port as 'invalid'. */
#define BAD_PORT ((uint16_t)-1)
#define FWDSTEP 4
/*
* 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;
/* 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];
/* replace first 12B of the ethernet header. */
#define MASK_ETH 0x3f
/* mask of enabled ports */
static uint32_t enabled_port_mask = 0;
static int promiscuous_on = 0;
static int numa_on = 1;
#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
static int ipv6 = 0;
#endif
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;
#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;
uint8_t lcore_id;
} __rte_cache_aligned;
static struct lcore_params lcore_params_array[MAX_LCORE_PARAMS];
static struct lcore_params lcore_params_array_default[] = {
{0, 0, 2},
{0, 1, 2},
{0, 2, 2},
{1, 0, 2},
{1, 1, 2},
{1, 2, 2},
{2, 0, 2},
{3, 0, 3},
{3, 1, 3},
};
static struct lcore_params * lcore_params = lcore_params_array_default;
static uint16_t nb_lcore_params = sizeof(lcore_params_array_default) /
sizeof(lcore_params_array_default[0]);
static struct rte_eth_conf port_conf = {
.rxmode = {
.mq_mode = ETH_MQ_RX_RSS,
.max_rx_pkt_len = ETHER_MAX_LEN,
.split_hdr_size = 0,
.header_split = 0,
.hw_ip_checksum = 1,
.hw_vlan_filter = 0,
.jumbo_frame = 0,
.hw_strip_crc = 0,
},
.rx_adv_conf = {
.rss_conf = {
.rss_key = NULL,
.rss_hf = ETH_RSS_IP,
},
},
.txmode = {
.mq_mode = ETH_MQ_TX_NONE,
},
};
static struct rte_mempool * pktmbuf_pool[NB_SOCKETS];
#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 ipv6_l3fwd_route {
uint8_t ip[16];
uint8_t depth;
uint8_t if_out;
};
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 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},
};
#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 *)&eth_hdr[0]->d_addr = dest_eth_addr[dst_port[0]];
*(uint64_t *)&eth_hdr[1]->d_addr = dest_eth_addr[dst_port[1]];
*(uint64_t *)&eth_hdr[2]->d_addr = dest_eth_addr[dst_port[2]];
*(uint64_t *)&eth_hdr[3]->d_addr = dest_eth_addr[dst_port[3]];
*(uint64_t *)&eth_hdr[4]->d_addr = dest_eth_addr[dst_port[4]];
*(uint64_t *)&eth_hdr[5]->d_addr = dest_eth_addr[dst_port[5]];
*(uint64_t *)&eth_hdr[6]->d_addr = dest_eth_addr[dst_port[6]];
*(uint64_t *)&eth_hdr[7]->d_addr = dest_eth_addr[dst_port[7]];
/* src addr */
ether_addr_copy(&ports_eth_addr[dst_port[0]], &eth_hdr[0]->s_addr);
ether_addr_copy(&ports_eth_addr[dst_port[1]], &eth_hdr[1]->s_addr);
ether_addr_copy(&ports_eth_addr[dst_port[2]], &eth_hdr[2]->s_addr);
ether_addr_copy(&ports_eth_addr[dst_port[3]], &eth_hdr[3]->s_addr);
ether_addr_copy(&ports_eth_addr[dst_port[4]], &eth_hdr[4]->s_addr);
ether_addr_copy(&ports_eth_addr[dst_port[5]], &eth_hdr[5]->s_addr);
ether_addr_copy(&ports_eth_addr[dst_port[6]], &eth_hdr[6]->s_addr);
ether_addr_copy(&ports_eth_addr[dst_port[7]], &eth_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 *)&eth_hdr[0]->d_addr = dest_eth_addr[dst_port[0]];
*(uint64_t *)&eth_hdr[1]->d_addr = dest_eth_addr[dst_port[1]];
*(uint64_t *)&eth_hdr[2]->d_addr = dest_eth_addr[dst_port[2]];
*(uint64_t *)&eth_hdr[3]->d_addr = dest_eth_addr[dst_port[3]];
*(uint64_t *)&eth_hdr[4]->d_addr = dest_eth_addr[dst_port[4]];
*(uint64_t *)&eth_hdr[5]->d_addr = dest_eth_addr[dst_port[5]];
*(uint64_t *)&eth_hdr[6]->d_addr = dest_eth_addr[dst_port[6]];
*(uint64_t *)&eth_hdr[7]->d_addr = dest_eth_addr[dst_port[7]];
/* src addr */
ether_addr_copy(&ports_eth_addr[dst_port[0]], &eth_hdr[0]->s_addr);
ether_addr_copy(&ports_eth_addr[dst_port[1]], &eth_hdr[1]->s_addr);
ether_addr_copy(&ports_eth_addr[dst_port[2]], &eth_hdr[2]->s_addr);
ether_addr_copy(&ports_eth_addr[dst_port[3]], &eth_hdr[3]->s_addr);
ether_addr_copy(&ports_eth_addr[dst_port[4]], &eth_hdr[4]->s_addr);
ether_addr_copy(&ports_eth_addr[dst_port[5]], &eth_hdr[5]->s_addr);
ether_addr_copy(&ports_eth_addr[dst_port[6]], &eth_hdr[6]->s_addr);
ether_addr_copy(&ports_eth_addr[dst_port[7]], &eth_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 *)&eth_hdr->d_addr = dest_eth_addr[dst_port];
/* src addr */
ether_addr_copy(&ports_eth_addr[dst_port], &eth_hdr->s_addr);
send_single_packet(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 *)&eth_hdr->d_addr = dest_eth_addr[dst_port];
/* src addr */
ether_addr_copy(&ports_eth_addr[dst_port], &eth_hdr->s_addr);
send_single_packet(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.
*/
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;
}
#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 */
}
}
}
static int
check_lcore_params(void)
{
uint8_t queue, lcore;
uint16_t i;
int socketid;
for (i = 0; i < nb_lcore_params; ++i) {
queue = lcore_params[i].queue_id;
if (queue >= MAX_RX_QUEUE_PER_PORT) {
printf("invalid queue number: %hhu\n", queue);
return -1;
}
lcore = lcore_params[i].lcore_id;
if (!rte_lcore_is_enabled(lcore)) {
printf("error: lcore %hhu is not enabled in lcore mask\n", lcore);
return -1;
}
if ((socketid = rte_lcore_to_socket_id(lcore) != 0) &&
(numa_on == 0)) {
printf("warning: lcore %hhu is on socket %d with numa off \n",
lcore, socketid);
}
}
return 0;
}
static int
check_port_config(const unsigned nb_ports)
{
unsigned portid;
uint16_t i;
for (i = 0; i < nb_lcore_params; ++i) {
portid = lcore_params[i].port_id;
if ((enabled_port_mask & (1 << portid)) == 0) {
printf("port %u is not enabled in port mask\n", portid);
return -1;
}
if (portid >= nb_ports) {
printf("port %u is not present on the board\n", portid);
return -1;
}
}
return 0;
}
static uint8_t
get_port_n_rx_queues(const uint8_t port)
{
int queue = -1;
uint16_t i;
for (i = 0; i < nb_lcore_params; ++i) {
if (lcore_params[i].port_id == port && lcore_params[i].queue_id > queue)
queue = lcore_params[i].queue_id;
}
return (uint8_t)(++queue);
}
static int
init_lcore_rx_queues(void)
{
uint16_t i, nb_rx_queue;
uint8_t lcore;
for (i = 0; i < nb_lcore_params; ++i) {
lcore = lcore_params[i].lcore_id;
nb_rx_queue = lcore_conf[lcore].n_rx_queue;
if (nb_rx_queue >= MAX_RX_QUEUE_PER_LCORE) {
printf("error: too many queues (%u) for lcore: %u\n",
(unsigned)nb_rx_queue + 1, (unsigned)lcore);
return -1;
} else {
lcore_conf[lcore].rx_queue_list[nb_rx_queue].port_id =
lcore_params[i].port_id;
lcore_conf[lcore].rx_queue_list[nb_rx_queue].queue_id =
lcore_params[i].queue_id;
lcore_conf[lcore].n_rx_queue++;
}
}
return 0;
}
/* display usage */
static void
print_usage(const char *prgname)
{
printf ("%s [EAL options] -- -p PORTMASK -P"
" [--config (port,queue,lcore)[,(port,queue,lcore]]"
" [--enable-jumbo [--max-pkt-len PKTLEN]]\n"
" -p PORTMASK: hexadecimal bitmask of ports to configure\n"
" -P : enable promiscuous mode\n"
" --config (port,queue,lcore): rx queues configuration\n"
" --eth-dest=X,MM:MM:MM:MM:MM:MM: optional, ethernet destination for port X\n"
" --no-numa: optional, disable numa awareness\n"
" --ipv6: optional, specify it if running ipv6 packets\n"
" --enable-jumbo: enable jumbo frame"
" which max packet len is PKTLEN in decimal (64-9600)\n"
" --hash-entry-num: specify the hash entry number in hexadecimal to be setup\n",
prgname);
}
static int parse_max_pkt_len(const char *pktlen)
{
char *end = NULL;
unsigned long len;
/* parse decimal string */
len = strtoul(pktlen, &end, 10);
if ((pktlen[0] == '\0') || (end == NULL) || (*end != '\0'))
return -1;
if (len == 0)
return -1;
return len;
}
static int
parse_portmask(const char *portmask)
{
char *end = NULL;
unsigned long pm;
/* parse hexadecimal string */
pm = strtoul(portmask, &end, 16);
if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
return -1;
if (pm == 0)
return -1;
return pm;
}
#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
static int
parse_hash_entry_number(const char *hash_entry_num)
{
char *end = NULL;
unsigned long hash_en;
/* parse hexadecimal string */
hash_en = strtoul(hash_entry_num, &end, 16);
if ((hash_entry_num[0] == '\0') || (end == NULL) || (*end != '\0'))
return -1;
if (hash_en == 0)
return -1;
return hash_en;
}
#endif
static int
parse_config(const char *q_arg)
{
char s[256];
const char *p, *p0 = q_arg;
char *end;
enum fieldnames {
FLD_PORT = 0,
FLD_QUEUE,
FLD_LCORE,
_NUM_FLD
};
unsigned long int_fld[_NUM_FLD];
char *str_fld[_NUM_FLD];
int i;
unsigned size;
nb_lcore_params = 0;
while ((p = strchr(p0,'(')) != NULL) {
++p;
if((p0 = strchr(p,')')) == NULL)
return -1;
size = p0 - p;
if(size >= sizeof(s))
return -1;
snprintf(s, sizeof(s), "%.*s", size, p);
if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') != _NUM_FLD)
return -1;
for (i = 0; i < _NUM_FLD; i++){
errno = 0;
int_fld[i] = strtoul(str_fld[i], &end, 0);
if (errno != 0 || end == str_fld[i] || int_fld[i] > 255)
return -1;
}
if (nb_lcore_params >= MAX_LCORE_PARAMS) {
printf("exceeded max number of lcore params: %hu\n",
nb_lcore_params);
return -1;
}
lcore_params_array[nb_lcore_params].port_id = (uint8_t)int_fld[FLD_PORT];
lcore_params_array[nb_lcore_params].queue_id = (uint8_t)int_fld[FLD_QUEUE];
lcore_params_array[nb_lcore_params].lcore_id = (uint8_t)int_fld[FLD_LCORE];
++nb_lcore_params;
}
lcore_params = lcore_params_array;
return 0;
}
static void
parse_eth_dest(const char *optarg)
{
uint8_t portid;
char *port_end;
uint8_t c, *dest, peer_addr[6];
errno = 0;
portid = strtoul(optarg, &port_end, 10);
if (errno != 0 || port_end == optarg || *port_end++ != ',')
rte_exit(EXIT_FAILURE,
"Invalid eth-dest: %s", optarg);
if (portid >= RTE_MAX_ETHPORTS)
rte_exit(EXIT_FAILURE,
"eth-dest: port %d >= RTE_MAX_ETHPORTS(%d)\n",
portid, RTE_MAX_ETHPORTS);
if (cmdline_parse_etheraddr(NULL, port_end,
&peer_addr, sizeof(peer_addr)) < 0)
rte_exit(EXIT_FAILURE,
"Invalid ethernet address: %s\n",
port_end);
dest = (uint8_t *)&dest_eth_addr[portid];
for (c = 0; c < 6; c++)
dest[c] = peer_addr[c];
*(uint64_t *)(val_eth + portid) = dest_eth_addr[portid];
}
#define CMD_LINE_OPT_CONFIG "config"
#define CMD_LINE_OPT_ETH_DEST "eth-dest"
#define CMD_LINE_OPT_NO_NUMA "no-numa"
#define CMD_LINE_OPT_IPV6 "ipv6"
#define CMD_LINE_OPT_ENABLE_JUMBO "enable-jumbo"
#define CMD_LINE_OPT_HASH_ENTRY_NUM "hash-entry-num"
/* Parse the argument given in the command line of the application */
static int
parse_args(int argc, char **argv)
{
int opt, ret;
char **argvopt;
int option_index;
char *prgname = argv[0];
static struct option lgopts[] = {
{CMD_LINE_OPT_CONFIG, 1, 0, 0},
{CMD_LINE_OPT_ETH_DEST, 1, 0, 0},
{CMD_LINE_OPT_NO_NUMA, 0, 0, 0},
{CMD_LINE_OPT_IPV6, 0, 0, 0},
{CMD_LINE_OPT_ENABLE_JUMBO, 0, 0, 0},
{CMD_LINE_OPT_HASH_ENTRY_NUM, 1, 0, 0},
{NULL, 0, 0, 0}
};
argvopt = argv;
while ((opt = getopt_long(argc, argvopt, "p:P",
lgopts, &option_index)) != EOF) {
switch (opt) {
/* portmask */
case 'p':
enabled_port_mask = parse_portmask(optarg);
if (enabled_port_mask == 0) {
printf("invalid portmask\n");
print_usage(prgname);
return -1;
}
break;
case 'P':
printf("Promiscuous mode selected\n");
promiscuous_on = 1;
break;
/* long options */
case 0:
if (!strncmp(lgopts[option_index].name, CMD_LINE_OPT_CONFIG,
sizeof (CMD_LINE_OPT_CONFIG))) {
ret = parse_config(optarg);
if (ret) {
printf("invalid config\n");
print_usage(prgname);
return -1;
}
}
if (!strncmp(lgopts[option_index].name, CMD_LINE_OPT_ETH_DEST,
sizeof(CMD_LINE_OPT_ETH_DEST))) {
parse_eth_dest(optarg);
}
if (!strncmp(lgopts[option_index].name, CMD_LINE_OPT_NO_NUMA,
sizeof(CMD_LINE_OPT_NO_NUMA))) {
printf("numa is disabled \n");
numa_on = 0;
}
#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
if (!strncmp(lgopts[option_index].name, CMD_LINE_OPT_IPV6,
sizeof(CMD_LINE_OPT_IPV6))) {
printf("ipv6 is specified \n");
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};
printf("jumbo frame is enabled - disabling simple TX path\n");
port_conf.rxmode.jumbo_frame = 1;
/* if no max-pkt-len set, use the default value ETHER_MAX_LEN */
if (0 == getopt_long(argc, argvopt, "", &lenopts, &option_index)) {
ret = parse_max_pkt_len(optarg);
if ((ret < 64) || (ret > MAX_JUMBO_PKT_LEN)){
printf("invalid packet length\n");
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);
}
#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
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");
print_usage(prgname);
return -1;
}
}
#endif
break;
default:
print_usage(prgname);
return -1;
}
}
if (optind >= 0)
argv[optind-1] = prgname;
ret = optind-1;
optind = 0; /* reset getopt lib */
return ret;
}
static void
print_ethaddr(const char *name, const struct ether_addr *eth_addr)
{
char buf[ETHER_ADDR_FMT_SIZE];
ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr);
printf("%s%s", name, buf);
}
#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)
{
struct lcore_conf *qconf;
int socketid;
unsigned lcore_id;
char s[64];
for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
if (rte_lcore_is_enabled(lcore_id) == 0)
continue;
if (numa_on)
socketid = rte_lcore_to_socket_id(lcore_id);
else
socketid = 0;
if (socketid >= NB_SOCKETS) {
rte_exit(EXIT_FAILURE, "Socket %d of lcore %u is out of range %d\n",
socketid, lcore_id, NB_SOCKETS);
}
if (pktmbuf_pool[socketid] == NULL) {
snprintf(s, sizeof(s), "mbuf_pool_%d", socketid);
pktmbuf_pool[socketid] =
rte_pktmbuf_pool_create(s, nb_mbuf,
MEMPOOL_CACHE_SIZE, 0,
RTE_MBUF_DEFAULT_BUF_SIZE, socketid);
if (pktmbuf_pool[socketid] == NULL)
rte_exit(EXIT_FAILURE,
"Cannot init mbuf pool on socket %d\n", socketid);
else
printf("Allocated mbuf pool on socket %d\n", socketid);
#if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
setup_lpm(socketid);
#else
setup_hash(socketid);
#endif
}
qconf = &lcore_conf[lcore_id];
qconf->ipv4_lookup_struct = ipv4_l3fwd_lookup_struct[socketid];
qconf->ipv6_lookup_struct = ipv6_l3fwd_lookup_struct[socketid];
}
return 0;
}
/* Check the link status of all ports in up to 9s, and print them finally */
static void
check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
{
#define CHECK_INTERVAL 100 /* 100ms */
#define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
uint8_t portid, count, all_ports_up, print_flag = 0;
struct rte_eth_link link;
printf("\nChecking link status");
fflush(stdout);
for (count = 0; count <= MAX_CHECK_TIME; count++) {
all_ports_up = 1;
for (portid = 0; portid < port_num; portid++) {
if ((port_mask & (1 << portid)) == 0)
continue;
memset(&link, 0, sizeof(link));
rte_eth_link_get_nowait(portid, &link);
/* print link status if flag set */
if (print_flag == 1) {
if (link.link_status)
printf("Port %d Link Up - speed %u "
"Mbps - %s\n", (uint8_t)portid,
(unsigned)link.link_speed,
(link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
("full-duplex") : ("half-duplex\n"));
else
printf("Port %d Link Down\n",
(uint8_t)portid);
continue;
}
/* clear all_ports_up flag if any link down */
if (link.link_status == 0) {
all_ports_up = 0;
break;
}
}
/* after finally printing all link status, get out */
if (print_flag == 1)
break;
if (all_ports_up == 0) {
printf(".");
fflush(stdout);
rte_delay_ms(CHECK_INTERVAL);
}
/* set the print_flag if all ports up or timeout */
if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
print_flag = 1;
printf("done\n");
}
}
}
int
main(int argc, char **argv)
{
struct lcore_conf *qconf;
struct rte_eth_dev_info dev_info;
struct rte_eth_txconf *txconf;
int ret;
unsigned nb_ports;
uint16_t queueid;
unsigned lcore_id;
uint32_t n_tx_queue, nb_lcores;
uint8_t portid, nb_rx_queue, queue, socketid;
/* init EAL */
ret = rte_eal_init(argc, argv);
if (ret < 0)
rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
argc -= ret;
argv += ret;
/* pre-init dst MACs for all ports to 02:00:00:00:00:xx */
for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
dest_eth_addr[portid] = ETHER_LOCAL_ADMIN_ADDR + ((uint64_t)portid << 40);
*(uint64_t *)(val_eth + portid) = dest_eth_addr[portid];
}
/* parse application arguments (after the EAL ones) */
ret = parse_args(argc, argv);
if (ret < 0)
rte_exit(EXIT_FAILURE, "Invalid L3FWD parameters\n");
if (check_lcore_params() < 0)
rte_exit(EXIT_FAILURE, "check_lcore_params failed\n");
ret = init_lcore_rx_queues();
if (ret < 0)
rte_exit(EXIT_FAILURE, "init_lcore_rx_queues failed\n");
nb_ports = rte_eth_dev_count();
if (nb_ports > RTE_MAX_ETHPORTS)
nb_ports = RTE_MAX_ETHPORTS;
if (check_port_config(nb_ports) < 0)
rte_exit(EXIT_FAILURE, "check_port_config failed\n");
nb_lcores = rte_lcore_count();
/* initialize all ports */
for (portid = 0; portid < nb_ports; portid++) {
/* skip ports that are not enabled */
if ((enabled_port_mask & (1 << portid)) == 0) {
printf("\nSkipping disabled port %d\n", portid);
continue;
}
/* init port */
printf("Initializing port %d ... ", portid );
fflush(stdout);
nb_rx_queue = get_port_n_rx_queues(portid);
n_tx_queue = nb_lcores;
if (n_tx_queue > MAX_TX_QUEUE_PER_PORT)
n_tx_queue = MAX_TX_QUEUE_PER_PORT;
printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
nb_rx_queue, (unsigned)n_tx_queue );
ret = rte_eth_dev_configure(portid, nb_rx_queue,
(uint16_t)n_tx_queue, &port_conf);
if (ret < 0)
rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%d\n",
ret, portid);
rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
print_ethaddr(" Address:", &ports_eth_addr[portid]);
printf(", ");
print_ethaddr("Destination:",
(const struct ether_addr *)&dest_eth_addr[portid]);
printf(", ");
/*
* prepare src MACs for each port.
*/
ether_addr_copy(&ports_eth_addr[portid],
(struct ether_addr *)(val_eth + portid) + 1);
/* init memory */
ret = init_mem(NB_MBUF);
if (ret < 0)
rte_exit(EXIT_FAILURE, "init_mem failed\n");
/* init one TX queue per couple (lcore,port) */
queueid = 0;
for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
if (rte_lcore_is_enabled(lcore_id) == 0)
continue;
if (numa_on)
socketid = (uint8_t)rte_lcore_to_socket_id(lcore_id);
else
socketid = 0;
printf("txq=%u,%d,%d ", lcore_id, queueid, socketid);
fflush(stdout);
rte_eth_dev_info_get(portid, &dev_info);
txconf = &dev_info.default_txconf;
if (port_conf.rxmode.jumbo_frame)
txconf->txq_flags = 0;
ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
socketid, txconf);
if (ret < 0)
rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d, "
"port=%d\n", ret, portid);
qconf = &lcore_conf[lcore_id];
qconf->tx_queue_id[portid] = queueid;
queueid++;
}
printf("\n");
}
for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
if (rte_lcore_is_enabled(lcore_id) == 0)
continue;
qconf = &lcore_conf[lcore_id];
printf("\nInitializing rx queues on lcore %u ... ", lcore_id );
fflush(stdout);
/* init RX queues */
for(queue = 0; queue < qconf->n_rx_queue; ++queue) {
portid = qconf->rx_queue_list[queue].port_id;
queueid = qconf->rx_queue_list[queue].queue_id;
if (numa_on)
socketid = (uint8_t)rte_lcore_to_socket_id(lcore_id);
else
socketid = 0;
printf("rxq=%d,%d,%d ", portid, queueid, socketid);
fflush(stdout);
ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
socketid,
NULL,
pktmbuf_pool[socketid]);
if (ret < 0)
rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup: err=%d,"
"port=%d\n", ret, portid);
}
}
printf("\n");
/* start ports */
for (portid = 0; portid < nb_ports; portid++) {
if ((enabled_port_mask & (1 << portid)) == 0) {
continue;
}
/* Start device */
ret = rte_eth_dev_start(portid);
if (ret < 0)
rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, port=%d\n",
ret, portid);
/*
* If enabled, put device in promiscuous mode.
* This allows IO forwarding mode to forward packets
* to itself through 2 cross-connected ports of the
* target machine.
*/
if (promiscuous_on)
rte_eth_promiscuous_enable(portid);
}
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_LCORE_FOREACH_SLAVE(lcore_id) {
if (rte_eal_wait_lcore(lcore_id) < 0)
return -1;
}
return 0;
}
Generated by   doxygen 1.8.1.2